devices/e1000/e1000_main-2.6.37-ethercat.c
author Florian Pose <fp@igh.de>
Mon, 04 Sep 2017 17:12:59 +0200
branchstable-1.5
changeset 2681 9953c0d372ab
parent 2582 87e502828b3f
permissions -rw-r--r--
Adapted vm_operations_struct for kernels >= 4.11
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/*******************************************************************************
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  Intel PRO/1000 Linux driver
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  Copyright(c) 1999 - 2006 Intel Corporation.
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  This program is free software; you can redistribute it and/or modify it
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  under the terms and conditions of the GNU General Public License,
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  version 2, as published by the Free Software Foundation.
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  This program is distributed in the hope it will be useful, but WITHOUT
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  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
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  more details.
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  You should have received a copy of the GNU General Public License along with
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  this program; if not, write to the Free Software Foundation, Inc.,
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  51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
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  The full GNU General Public License is included in this distribution in
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  the file called "COPYING".
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  Contact Information:
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  Linux NICS <linux.nics@intel.com>
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  e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
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  Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
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bc2d4bf9cbe5 Removed trailing spaces.
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2202
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  vim: noexpandtab
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*******************************************************************************/
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#include "e1000-2.6.37-ethercat.h"
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#include <net/ip6_checksum.h>
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char e1000_driver_name[] = "ec_e1000";
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static char e1000_driver_string[] = "Intel(R) PRO/1000 Network Driver";
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#define DRV_VERSION "7.3.21-k8-NAPI"
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const char e1000_driver_version[] = DRV_VERSION;
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static const char e1000_copyright[] = "Copyright (c) 1999-2006 Intel Corporation.";
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/* e1000_pci_tbl - PCI Device ID Table
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 *
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 * Last entry must be all 0s
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 *
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 * Macro expands to...
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 *   {PCI_DEVICE(PCI_VENDOR_ID_INTEL, device_id)}
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 */
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static DEFINE_PCI_DEVICE_TABLE(e1000_pci_tbl) = {
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	INTEL_E1000_ETHERNET_DEVICE(0x1000),
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	INTEL_E1000_ETHERNET_DEVICE(0x1001),
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	INTEL_E1000_ETHERNET_DEVICE(0x1004),
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	INTEL_E1000_ETHERNET_DEVICE(0x1008),
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	INTEL_E1000_ETHERNET_DEVICE(0x1009),
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	INTEL_E1000_ETHERNET_DEVICE(0x100C),
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	INTEL_E1000_ETHERNET_DEVICE(0x100D),
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	INTEL_E1000_ETHERNET_DEVICE(0x100E),
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	INTEL_E1000_ETHERNET_DEVICE(0x100F),
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	INTEL_E1000_ETHERNET_DEVICE(0x1010),
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	INTEL_E1000_ETHERNET_DEVICE(0x1011),
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	INTEL_E1000_ETHERNET_DEVICE(0x1012),
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	INTEL_E1000_ETHERNET_DEVICE(0x1013),
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	INTEL_E1000_ETHERNET_DEVICE(0x1014),
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	INTEL_E1000_ETHERNET_DEVICE(0x1015),
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	INTEL_E1000_ETHERNET_DEVICE(0x1016),
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	INTEL_E1000_ETHERNET_DEVICE(0x1017),
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	INTEL_E1000_ETHERNET_DEVICE(0x1018),
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	INTEL_E1000_ETHERNET_DEVICE(0x1019),
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	INTEL_E1000_ETHERNET_DEVICE(0x101A),
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	INTEL_E1000_ETHERNET_DEVICE(0x101D),
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	INTEL_E1000_ETHERNET_DEVICE(0x101E),
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	INTEL_E1000_ETHERNET_DEVICE(0x1026),
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	INTEL_E1000_ETHERNET_DEVICE(0x1027),
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	INTEL_E1000_ETHERNET_DEVICE(0x1028),
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	INTEL_E1000_ETHERNET_DEVICE(0x1075),
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	INTEL_E1000_ETHERNET_DEVICE(0x1076),
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	INTEL_E1000_ETHERNET_DEVICE(0x1077),
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	INTEL_E1000_ETHERNET_DEVICE(0x1078),
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	INTEL_E1000_ETHERNET_DEVICE(0x1079),
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	INTEL_E1000_ETHERNET_DEVICE(0x107A),
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	INTEL_E1000_ETHERNET_DEVICE(0x107B),
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	INTEL_E1000_ETHERNET_DEVICE(0x107C),
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	INTEL_E1000_ETHERNET_DEVICE(0x108A),
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	INTEL_E1000_ETHERNET_DEVICE(0x1099),
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	INTEL_E1000_ETHERNET_DEVICE(0x10B5),
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	/* required last entry */
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	{0,}
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};
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// do not auto-load driver
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// MODULE_DEVICE_TABLE(pci, e1000_pci_tbl);
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int e1000_up(struct e1000_adapter *adapter);
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void e1000_down(struct e1000_adapter *adapter);
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void e1000_reinit_locked(struct e1000_adapter *adapter);
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void e1000_reset(struct e1000_adapter *adapter);
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int e1000_set_spd_dplx(struct e1000_adapter *adapter, u16 spddplx);
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int e1000_setup_all_tx_resources(struct e1000_adapter *adapter);
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int e1000_setup_all_rx_resources(struct e1000_adapter *adapter);
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void e1000_free_all_tx_resources(struct e1000_adapter *adapter);
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void e1000_free_all_rx_resources(struct e1000_adapter *adapter);
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static int e1000_setup_tx_resources(struct e1000_adapter *adapter,
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                             struct e1000_tx_ring *txdr);
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static int e1000_setup_rx_resources(struct e1000_adapter *adapter,
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                             struct e1000_rx_ring *rxdr);
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static void e1000_free_tx_resources(struct e1000_adapter *adapter,
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                             struct e1000_tx_ring *tx_ring);
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static void e1000_free_rx_resources(struct e1000_adapter *adapter,
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                             struct e1000_rx_ring *rx_ring);
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void e1000_update_stats(struct e1000_adapter *adapter);
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static int e1000_init_module(void);
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static void e1000_exit_module(void);
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static int e1000_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
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static void __devexit e1000_remove(struct pci_dev *pdev);
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static int e1000_alloc_queues(struct e1000_adapter *adapter);
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static int e1000_sw_init(struct e1000_adapter *adapter);
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static int e1000_open(struct net_device *netdev);
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static int e1000_close(struct net_device *netdev);
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static void e1000_configure_tx(struct e1000_adapter *adapter);
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static void e1000_configure_rx(struct e1000_adapter *adapter);
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static void e1000_setup_rctl(struct e1000_adapter *adapter);
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static void e1000_clean_all_tx_rings(struct e1000_adapter *adapter);
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static void e1000_clean_all_rx_rings(struct e1000_adapter *adapter);
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static void e1000_clean_tx_ring(struct e1000_adapter *adapter,
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                                struct e1000_tx_ring *tx_ring);
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static void e1000_clean_rx_ring(struct e1000_adapter *adapter,
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                                struct e1000_rx_ring *rx_ring);
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static void e1000_set_rx_mode(struct net_device *netdev);
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static void e1000_update_phy_info(unsigned long data);
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static void e1000_update_phy_info_task(struct work_struct *work);
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static void e1000_watchdog(unsigned long data);
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static void e1000_82547_tx_fifo_stall(unsigned long data);
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static void e1000_82547_tx_fifo_stall_task(struct work_struct *work);
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static netdev_tx_t e1000_xmit_frame(struct sk_buff *skb,
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				    struct net_device *netdev);
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static struct net_device_stats * e1000_get_stats(struct net_device *netdev);
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static int e1000_change_mtu(struct net_device *netdev, int new_mtu);
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static int e1000_set_mac(struct net_device *netdev, void *p);
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void ec_poll(struct net_device *);
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static irqreturn_t e1000_intr(int irq, void *data);
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static bool e1000_clean_tx_irq(struct e1000_adapter *adapter,
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			       struct e1000_tx_ring *tx_ring);
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static int e1000_clean(struct napi_struct *napi, int budget);
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static bool e1000_clean_rx_irq(struct e1000_adapter *adapter,
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			       struct e1000_rx_ring *rx_ring,
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			       int *work_done, int work_to_do);
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static bool e1000_clean_jumbo_rx_irq(struct e1000_adapter *adapter,
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				     struct e1000_rx_ring *rx_ring,
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				     int *work_done, int work_to_do);
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static void e1000_alloc_rx_buffers(struct e1000_adapter *adapter,
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				   struct e1000_rx_ring *rx_ring,
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				   int cleaned_count);
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static void e1000_alloc_jumbo_rx_buffers(struct e1000_adapter *adapter,
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					 struct e1000_rx_ring *rx_ring,
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					 int cleaned_count);
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static int e1000_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd);
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static int e1000_mii_ioctl(struct net_device *netdev, struct ifreq *ifr,
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			   int cmd);
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static void e1000_enter_82542_rst(struct e1000_adapter *adapter);
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static void e1000_leave_82542_rst(struct e1000_adapter *adapter);
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static void e1000_tx_timeout(struct net_device *dev);
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static void e1000_reset_task(struct work_struct *work);
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static void e1000_smartspeed(struct e1000_adapter *adapter);
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static int e1000_82547_fifo_workaround(struct e1000_adapter *adapter,
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                                       struct sk_buff *skb);
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static void e1000_vlan_rx_register(struct net_device *netdev, struct vlan_group *grp);
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static void e1000_vlan_rx_add_vid(struct net_device *netdev, u16 vid);
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static void e1000_vlan_rx_kill_vid(struct net_device *netdev, u16 vid);
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static void e1000_restore_vlan(struct e1000_adapter *adapter);
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#ifdef CONFIG_PM
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static int e1000_suspend(struct pci_dev *pdev, pm_message_t state);
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static int e1000_resume(struct pci_dev *pdev);
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#endif
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static void e1000_shutdown(struct pci_dev *pdev);
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#ifdef CONFIG_NET_POLL_CONTROLLER
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/* for netdump / net console */
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static void e1000_netpoll (struct net_device *netdev);
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#endif
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#define COPYBREAK_DEFAULT 256
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static unsigned int copybreak __read_mostly = COPYBREAK_DEFAULT;
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module_param(copybreak, uint, 0644);
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MODULE_PARM_DESC(copybreak,
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	"Maximum size of packet that is copied to a new buffer on receive");
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static pci_ers_result_t e1000_io_error_detected(struct pci_dev *pdev,
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                     pci_channel_state_t state);
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static pci_ers_result_t e1000_io_slot_reset(struct pci_dev *pdev);
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static void e1000_io_resume(struct pci_dev *pdev);
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static struct pci_error_handlers e1000_err_handler = {
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	.error_detected = e1000_io_error_detected,
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	.slot_reset = e1000_io_slot_reset,
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	.resume = e1000_io_resume,
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};
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static struct pci_driver e1000_driver = {
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	.name     = e1000_driver_name,
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	.id_table = e1000_pci_tbl,
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	.probe    = e1000_probe,
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	.remove   = __devexit_p(e1000_remove),
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#ifdef CONFIG_PM
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	/* Power Managment Hooks */
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	.suspend  = e1000_suspend,
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	.resume   = e1000_resume,
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#endif
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	.shutdown = e1000_shutdown,
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	.err_handler = &e1000_err_handler
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   211
};
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MODULE_AUTHOR("Florian Pose <fp@igh-essen.com>");
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MODULE_DESCRIPTION("EtherCAT-capable Intel(R) PRO/1000 Network Driver");
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MODULE_LICENSE("GPL");
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MODULE_VERSION(DRV_VERSION);
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static int debug = NETIF_MSG_DRV | NETIF_MSG_PROBE;
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module_param(debug, int, 0);
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MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)");
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/**
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 * e1000_get_hw_dev - return device
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 * used by hardware layer to print debugging information
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 *
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 **/
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struct net_device *e1000_get_hw_dev(struct e1000_hw *hw)
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{
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	struct e1000_adapter *adapter = hw->back;
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	return adapter->netdev;
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}
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/**
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 * e1000_init_module - Driver Registration Routine
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 *
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 * e1000_init_module is the first routine called when the driver is
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 * loaded. All it does is register with the PCI subsystem.
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 **/
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static int __init e1000_init_module(void)
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{
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	int ret;
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	pr_info("%s - version %s\n", e1000_driver_string, e1000_driver_version);
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	pr_info("%s\n", e1000_copyright);
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	ret = pci_register_driver(&e1000_driver);
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   248
	if (copybreak != COPYBREAK_DEFAULT) {
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		if (copybreak == 0)
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			pr_info("copybreak disabled\n");
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		else
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			pr_info("copybreak enabled for "
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				   "packets <= %u bytes\n", copybreak);
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	}
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	return ret;
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}
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module_init(e1000_init_module);
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/**
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 * e1000_exit_module - Driver Exit Cleanup Routine
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 *
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 * e1000_exit_module is called just before the driver is removed
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 * from memory.
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 **/
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static void __exit e1000_exit_module(void)
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{
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	pci_unregister_driver(&e1000_driver);
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}
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module_exit(e1000_exit_module);
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static int e1000_request_irq(struct e1000_adapter *adapter)
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{
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	struct net_device *netdev = adapter->netdev;
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	irq_handler_t handler = e1000_intr;
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	int irq_flags = IRQF_SHARED;
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	int err;
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	if (adapter->ecdev) {
2202
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		return 0;
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	}
2202
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	err = request_irq(adapter->pdev->irq, handler, irq_flags, netdev->name,
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	                  netdev);
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	if (err) {
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		e_err(probe, "Unable to allocate interrupt Error: %d\n", err);
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	}
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	return err;
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}
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static void e1000_free_irq(struct e1000_adapter *adapter)
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{
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	struct net_device *netdev = adapter->netdev;
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	if (adapter->ecdev) {
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		return;
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	}
2202
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	free_irq(adapter->pdev->irq, netdev);
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}
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/**
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 * e1000_irq_disable - Mask off interrupt generation on the NIC
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 * @adapter: board private structure
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 **/
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static void e1000_irq_disable(struct e1000_adapter *adapter)
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{
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	struct e1000_hw *hw = &adapter->hw;
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	if (adapter->ecdev) {
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		return;
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	}
2202
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	ew32(IMC, ~0);
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	E1000_WRITE_FLUSH();
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	synchronize_irq(adapter->pdev->irq);
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   321
}
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/**
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   324
 * e1000_irq_enable - Enable default interrupt generation settings
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   325
 * @adapter: board private structure
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 **/
14728d0c4a66 Added e1000 driver for 2.6.37.
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   327
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static void e1000_irq_enable(struct e1000_adapter *adapter)
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   329
{
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   330
	struct e1000_hw *hw = &adapter->hw;
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   332
	if (adapter->ecdev) {
2202
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   333
		return;
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   334
	}
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2202
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   336
	ew32(IMS, IMS_ENABLE_MASK);
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   337
	E1000_WRITE_FLUSH();
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   338
}
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   339
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   340
static void e1000_update_mng_vlan(struct e1000_adapter *adapter)
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   341
{
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   342
	struct e1000_hw *hw = &adapter->hw;
14728d0c4a66 Added e1000 driver for 2.6.37.
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   343
	struct net_device *netdev = adapter->netdev;
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   344
	u16 vid = hw->mng_cookie.vlan_id;
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   345
	u16 old_vid = adapter->mng_vlan_id;
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   346
	if (adapter->vlgrp) {
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   347
		if (!vlan_group_get_device(adapter->vlgrp, vid)) {
14728d0c4a66 Added e1000 driver for 2.6.37.
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   348
			if (hw->mng_cookie.status &
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   349
				E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT) {
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   350
				e1000_vlan_rx_add_vid(netdev, vid);
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   351
				adapter->mng_vlan_id = vid;
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   352
			} else
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   353
				adapter->mng_vlan_id = E1000_MNG_VLAN_NONE;
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   354
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   355
			if ((old_vid != (u16)E1000_MNG_VLAN_NONE) &&
14728d0c4a66 Added e1000 driver for 2.6.37.
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   356
					(vid != old_vid) &&
14728d0c4a66 Added e1000 driver for 2.6.37.
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   357
			    !vlan_group_get_device(adapter->vlgrp, old_vid))
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   358
				e1000_vlan_rx_kill_vid(netdev, old_vid);
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diff changeset
   359
		} else
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   360
			adapter->mng_vlan_id = vid;
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   361
	}
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diff changeset
   362
}
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   363
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   364
static void e1000_init_manageability(struct e1000_adapter *adapter)
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   365
{
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   366
	struct e1000_hw *hw = &adapter->hw;
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   367
14728d0c4a66 Added e1000 driver for 2.6.37.
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   368
	if (adapter->en_mng_pt) {
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   369
		u32 manc = er32(MANC);
14728d0c4a66 Added e1000 driver for 2.6.37.
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   370
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   371
		/* disable hardware interception of ARP */
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   372
		manc &= ~(E1000_MANC_ARP_EN);
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   373
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   374
		ew32(MANC, manc);
14728d0c4a66 Added e1000 driver for 2.6.37.
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diff changeset
   375
	}
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diff changeset
   376
}
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   377
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   378
static void e1000_release_manageability(struct e1000_adapter *adapter)
14728d0c4a66 Added e1000 driver for 2.6.37.
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   379
{
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   380
	struct e1000_hw *hw = &adapter->hw;
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   381
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parents:
diff changeset
   382
	if (adapter->en_mng_pt) {
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parents:
diff changeset
   383
		u32 manc = er32(MANC);
14728d0c4a66 Added e1000 driver for 2.6.37.
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parents:
diff changeset
   384
14728d0c4a66 Added e1000 driver for 2.6.37.
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parents:
diff changeset
   385
		/* re-enable hardware interception of ARP */
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Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   386
		manc |= E1000_MANC_ARP_EN;
14728d0c4a66 Added e1000 driver for 2.6.37.
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parents:
diff changeset
   387
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diff changeset
   388
		ew32(MANC, manc);
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parents:
diff changeset
   389
	}
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parents:
diff changeset
   390
}
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parents:
diff changeset
   391
14728d0c4a66 Added e1000 driver for 2.6.37.
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parents:
diff changeset
   392
/**
14728d0c4a66 Added e1000 driver for 2.6.37.
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parents:
diff changeset
   393
 * e1000_configure - configure the hardware for RX and TX
14728d0c4a66 Added e1000 driver for 2.6.37.
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parents:
diff changeset
   394
 * @adapter = private board structure
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Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   395
 **/
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   396
static void e1000_configure(struct e1000_adapter *adapter)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   397
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   398
	struct net_device *netdev = adapter->netdev;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   399
	int i;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   400
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   401
	e1000_set_rx_mode(netdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   402
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   403
	e1000_restore_vlan(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   404
	e1000_init_manageability(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   405
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   406
	e1000_configure_tx(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   407
	e1000_setup_rctl(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   408
	e1000_configure_rx(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   409
	/* call E1000_DESC_UNUSED which always leaves
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   410
	 * at least 1 descriptor unused to make sure
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   411
	 * next_to_use != next_to_clean */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   412
	for (i = 0; i < adapter->num_rx_queues; i++) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   413
		struct e1000_rx_ring *ring = &adapter->rx_ring[i];
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   414
		if (adapter->ecdev) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   415
			/* fill rx ring completely! */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   416
			adapter->alloc_rx_buf(adapter, ring, ring->count);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   417
		} else {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   418
            /* this one leaves the last ring element unallocated! */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   419
			adapter->alloc_rx_buf(adapter, ring,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   420
					E1000_DESC_UNUSED(ring));
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   421
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   422
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   423
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   424
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   425
int e1000_up(struct e1000_adapter *adapter)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   426
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   427
	struct e1000_hw *hw = &adapter->hw;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   428
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   429
	/* hardware has been reset, we need to reload some things */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   430
	e1000_configure(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   431
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   432
	clear_bit(__E1000_DOWN, &adapter->flags);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   433
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   434
	if (!adapter->ecdev) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   435
		napi_enable(&adapter->napi);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   436
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   437
		e1000_irq_enable(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   438
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   439
		netif_wake_queue(adapter->netdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   440
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   441
		/* fire a link change interrupt to start the watchdog */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   442
		ew32(ICS, E1000_ICS_LSC);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   443
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   444
	return 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   445
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   446
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   447
/**
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   448
 * e1000_power_up_phy - restore link in case the phy was powered down
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   449
 * @adapter: address of board private structure
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   450
 *
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   451
 * The phy may be powered down to save power and turn off link when the
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   452
 * driver is unloaded and wake on lan is not enabled (among others)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   453
 * *** this routine MUST be followed by a call to e1000_reset ***
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   454
 *
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   455
 **/
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   456
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   457
void e1000_power_up_phy(struct e1000_adapter *adapter)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   458
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   459
	struct e1000_hw *hw = &adapter->hw;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   460
	u16 mii_reg = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   461
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   462
	/* Just clear the power down bit to wake the phy back up */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   463
	if (hw->media_type == e1000_media_type_copper) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   464
		/* according to the manual, the phy will retain its
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   465
		 * settings across a power-down/up cycle */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   466
		e1000_read_phy_reg(hw, PHY_CTRL, &mii_reg);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   467
		mii_reg &= ~MII_CR_POWER_DOWN;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   468
		e1000_write_phy_reg(hw, PHY_CTRL, mii_reg);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   469
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   470
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   471
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   472
static void e1000_power_down_phy(struct e1000_adapter *adapter)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   473
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   474
	struct e1000_hw *hw = &adapter->hw;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   475
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   476
	/* Power down the PHY so no link is implied when interface is down *
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   477
	 * The PHY cannot be powered down if any of the following is true *
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   478
	 * (a) WoL is enabled
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   479
	 * (b) AMT is active
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   480
	 * (c) SoL/IDER session is active */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   481
	if (!adapter->wol && hw->mac_type >= e1000_82540 &&
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   482
	   hw->media_type == e1000_media_type_copper) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   483
		u16 mii_reg = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   484
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   485
		switch (hw->mac_type) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   486
		case e1000_82540:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   487
		case e1000_82545:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   488
		case e1000_82545_rev_3:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   489
		case e1000_82546:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   490
		case e1000_82546_rev_3:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   491
		case e1000_82541:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   492
		case e1000_82541_rev_2:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   493
		case e1000_82547:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   494
		case e1000_82547_rev_2:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   495
			if (er32(MANC) & E1000_MANC_SMBUS_EN)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   496
				goto out;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   497
			break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   498
		default:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   499
			goto out;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   500
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   501
		e1000_read_phy_reg(hw, PHY_CTRL, &mii_reg);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   502
		mii_reg |= MII_CR_POWER_DOWN;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   503
		e1000_write_phy_reg(hw, PHY_CTRL, mii_reg);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   504
		mdelay(1);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   505
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   506
out:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   507
	return;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   508
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   509
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   510
void e1000_down(struct e1000_adapter *adapter)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   511
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   512
	struct e1000_hw *hw = &adapter->hw;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   513
	struct net_device *netdev = adapter->netdev;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   514
	u32 rctl, tctl;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   515
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   516
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   517
	/* disable receives in the hardware */	
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   518
	rctl = er32(RCTL);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   519
	ew32(RCTL, rctl & ~E1000_RCTL_EN);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   520
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   521
	if (!adapter->ecdev) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   522
		/* flush and sleep below */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   523
		netif_tx_disable(netdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   524
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   525
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   526
	/* disable transmits in the hardware */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   527
	tctl = er32(TCTL);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   528
	tctl &= ~E1000_TCTL_EN;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   529
	ew32(TCTL, tctl);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   530
	/* flush both disables and wait for them to finish */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   531
	E1000_WRITE_FLUSH();
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   532
	msleep(10);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   533
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   534
	if (!adapter->ecdev) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   535
		napi_disable(&adapter->napi);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   536
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   537
		e1000_irq_disable(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   538
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   539
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   540
	/*
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   541
	 * Setting DOWN must be after irq_disable to prevent
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   542
	 * a screaming interrupt.  Setting DOWN also prevents
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   543
	 * timers and tasks from rescheduling.
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   544
	 */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   545
	set_bit(__E1000_DOWN, &adapter->flags);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   546
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   547
	if (!adapter->ecdev) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   548
		del_timer_sync(&adapter->tx_fifo_stall_timer);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   549
		del_timer_sync(&adapter->watchdog_timer);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   550
		del_timer_sync(&adapter->phy_info_timer);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   551
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   552
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   553
	adapter->link_speed = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   554
	adapter->link_duplex = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   555
	if (!adapter->ecdev) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   556
		netif_carrier_off(netdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   557
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   558
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   559
	e1000_reset(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   560
	e1000_clean_all_tx_rings(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   561
	e1000_clean_all_rx_rings(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   562
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   563
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   564
static void e1000_reinit_safe(struct e1000_adapter *adapter)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   565
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   566
	while (test_and_set_bit(__E1000_RESETTING, &adapter->flags))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   567
		msleep(1);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   568
	rtnl_lock();
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   569
	e1000_down(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   570
	e1000_up(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   571
	rtnl_unlock();
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   572
	clear_bit(__E1000_RESETTING, &adapter->flags);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   573
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   574
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   575
void e1000_reinit_locked(struct e1000_adapter *adapter)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   576
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   577
	/* if rtnl_lock is not held the call path is bogus */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   578
	ASSERT_RTNL();
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   579
	WARN_ON(in_interrupt());
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   580
	while (test_and_set_bit(__E1000_RESETTING, &adapter->flags))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   581
		msleep(1);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   582
	e1000_down(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   583
	e1000_up(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   584
	clear_bit(__E1000_RESETTING, &adapter->flags);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   585
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   586
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   587
void e1000_reset(struct e1000_adapter *adapter)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   588
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   589
	struct e1000_hw *hw = &adapter->hw;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   590
	u32 pba = 0, tx_space, min_tx_space, min_rx_space;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   591
	bool legacy_pba_adjust = false;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   592
	u16 hwm;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   593
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   594
	/* Repartition Pba for greater than 9k mtu
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   595
	 * To take effect CTRL.RST is required.
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   596
	 */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   597
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   598
	switch (hw->mac_type) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   599
	case e1000_82542_rev2_0:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   600
	case e1000_82542_rev2_1:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   601
	case e1000_82543:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   602
	case e1000_82544:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   603
	case e1000_82540:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   604
	case e1000_82541:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   605
	case e1000_82541_rev_2:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   606
		legacy_pba_adjust = true;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   607
		pba = E1000_PBA_48K;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   608
		break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   609
	case e1000_82545:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   610
	case e1000_82545_rev_3:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   611
	case e1000_82546:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   612
	case e1000_82546_rev_3:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   613
		pba = E1000_PBA_48K;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   614
		break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   615
	case e1000_82547:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   616
	case e1000_82547_rev_2:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   617
		legacy_pba_adjust = true;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   618
		pba = E1000_PBA_30K;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   619
		break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   620
	case e1000_undefined:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   621
	case e1000_num_macs:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   622
		break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   623
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   624
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   625
	if (legacy_pba_adjust) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   626
		if (hw->max_frame_size > E1000_RXBUFFER_8192)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   627
			pba -= 8; /* allocate more FIFO for Tx */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   628
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   629
		if (hw->mac_type == e1000_82547) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   630
			adapter->tx_fifo_head = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   631
			adapter->tx_head_addr = pba << E1000_TX_HEAD_ADDR_SHIFT;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   632
			adapter->tx_fifo_size =
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   633
				(E1000_PBA_40K - pba) << E1000_PBA_BYTES_SHIFT;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   634
			atomic_set(&adapter->tx_fifo_stall, 0);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   635
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   636
	} else if (hw->max_frame_size >  ETH_FRAME_LEN + ETH_FCS_LEN) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   637
		/* adjust PBA for jumbo frames */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   638
		ew32(PBA, pba);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   639
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   640
		/* To maintain wire speed transmits, the Tx FIFO should be
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   641
		 * large enough to accommodate two full transmit packets,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   642
		 * rounded up to the next 1KB and expressed in KB.  Likewise,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   643
		 * the Rx FIFO should be large enough to accommodate at least
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   644
		 * one full receive packet and is similarly rounded up and
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   645
		 * expressed in KB. */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   646
		pba = er32(PBA);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   647
		/* upper 16 bits has Tx packet buffer allocation size in KB */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   648
		tx_space = pba >> 16;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   649
		/* lower 16 bits has Rx packet buffer allocation size in KB */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   650
		pba &= 0xffff;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   651
		/*
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   652
		 * the tx fifo also stores 16 bytes of information about the tx
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   653
		 * but don't include ethernet FCS because hardware appends it
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   654
		 */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   655
		min_tx_space = (hw->max_frame_size +
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   656
		                sizeof(struct e1000_tx_desc) -
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   657
		                ETH_FCS_LEN) * 2;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   658
		min_tx_space = ALIGN(min_tx_space, 1024);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   659
		min_tx_space >>= 10;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   660
		/* software strips receive CRC, so leave room for it */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   661
		min_rx_space = hw->max_frame_size;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   662
		min_rx_space = ALIGN(min_rx_space, 1024);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   663
		min_rx_space >>= 10;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   664
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   665
		/* If current Tx allocation is less than the min Tx FIFO size,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   666
		 * and the min Tx FIFO size is less than the current Rx FIFO
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   667
		 * allocation, take space away from current Rx allocation */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   668
		if (tx_space < min_tx_space &&
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   669
		    ((min_tx_space - tx_space) < pba)) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   670
			pba = pba - (min_tx_space - tx_space);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   671
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   672
			/* PCI/PCIx hardware has PBA alignment constraints */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   673
			switch (hw->mac_type) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   674
			case e1000_82545 ... e1000_82546_rev_3:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   675
				pba &= ~(E1000_PBA_8K - 1);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   676
				break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   677
			default:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   678
				break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   679
			}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   680
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   681
			/* if short on rx space, rx wins and must trump tx
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   682
			 * adjustment or use Early Receive if available */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   683
			if (pba < min_rx_space)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   684
				pba = min_rx_space;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   685
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   686
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   687
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   688
	ew32(PBA, pba);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   689
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   690
	/*
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   691
	 * flow control settings:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   692
	 * The high water mark must be low enough to fit one full frame
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   693
	 * (or the size used for early receive) above it in the Rx FIFO.
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   694
	 * Set it to the lower of:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   695
	 * - 90% of the Rx FIFO size, and
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   696
	 * - the full Rx FIFO size minus the early receive size (for parts
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   697
	 *   with ERT support assuming ERT set to E1000_ERT_2048), or
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   698
	 * - the full Rx FIFO size minus one full frame
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   699
	 */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   700
	hwm = min(((pba << 10) * 9 / 10),
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   701
		  ((pba << 10) - hw->max_frame_size));
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   702
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   703
	hw->fc_high_water = hwm & 0xFFF8;	/* 8-byte granularity */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   704
	hw->fc_low_water = hw->fc_high_water - 8;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   705
	hw->fc_pause_time = E1000_FC_PAUSE_TIME;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   706
	hw->fc_send_xon = 1;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   707
	hw->fc = hw->original_fc;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   708
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   709
	/* Allow time for pending master requests to run */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   710
	e1000_reset_hw(hw);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   711
	if (hw->mac_type >= e1000_82544)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   712
		ew32(WUC, 0);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   713
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   714
	if (e1000_init_hw(hw))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   715
		e_dev_err("Hardware Error\n");
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   716
	e1000_update_mng_vlan(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   717
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   718
	/* if (adapter->hwflags & HWFLAGS_PHY_PWR_BIT) { */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   719
	if (hw->mac_type >= e1000_82544 &&
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   720
	    hw->autoneg == 1 &&
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   721
	    hw->autoneg_advertised == ADVERTISE_1000_FULL) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   722
		u32 ctrl = er32(CTRL);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   723
		/* clear phy power management bit if we are in gig only mode,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   724
		 * which if enabled will attempt negotiation to 100Mb, which
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   725
		 * can cause a loss of link at power off or driver unload */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   726
		ctrl &= ~E1000_CTRL_SWDPIN3;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   727
		ew32(CTRL, ctrl);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   728
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   729
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   730
	/* Enable h/w to recognize an 802.1Q VLAN Ethernet packet */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   731
	ew32(VET, ETHERNET_IEEE_VLAN_TYPE);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   732
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   733
	e1000_reset_adaptive(hw);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   734
	e1000_phy_get_info(hw, &adapter->phy_info);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   735
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   736
	e1000_release_manageability(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   737
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   738
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   739
/**
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   740
 *  Dump the eeprom for users having checksum issues
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   741
 **/
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   742
static void e1000_dump_eeprom(struct e1000_adapter *adapter)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   743
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   744
	struct net_device *netdev = adapter->netdev;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   745
	struct ethtool_eeprom eeprom;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   746
	const struct ethtool_ops *ops = netdev->ethtool_ops;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   747
	u8 *data;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   748
	int i;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   749
	u16 csum_old, csum_new = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   750
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   751
	eeprom.len = ops->get_eeprom_len(netdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   752
	eeprom.offset = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   753
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   754
	data = kmalloc(eeprom.len, GFP_KERNEL);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   755
	if (!data) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   756
		pr_err("Unable to allocate memory to dump EEPROM data\n");
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   757
		return;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   758
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   759
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   760
	ops->get_eeprom(netdev, &eeprom, data);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   761
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   762
	csum_old = (data[EEPROM_CHECKSUM_REG * 2]) +
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   763
		   (data[EEPROM_CHECKSUM_REG * 2 + 1] << 8);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   764
	for (i = 0; i < EEPROM_CHECKSUM_REG * 2; i += 2)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   765
		csum_new += data[i] + (data[i + 1] << 8);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   766
	csum_new = EEPROM_SUM - csum_new;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   767
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   768
	pr_err("/*********************/\n");
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   769
	pr_err("Current EEPROM Checksum : 0x%04x\n", csum_old);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   770
	pr_err("Calculated              : 0x%04x\n", csum_new);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   771
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   772
	pr_err("Offset    Values\n");
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   773
	pr_err("========  ======\n");
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   774
	print_hex_dump(KERN_ERR, "", DUMP_PREFIX_OFFSET, 16, 1, data, 128, 0);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   775
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   776
	pr_err("Include this output when contacting your support provider.\n");
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   777
	pr_err("This is not a software error! Something bad happened to\n");
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   778
	pr_err("your hardware or EEPROM image. Ignoring this problem could\n");
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   779
	pr_err("result in further problems, possibly loss of data,\n");
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   780
	pr_err("corruption or system hangs!\n");
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   781
	pr_err("The MAC Address will be reset to 00:00:00:00:00:00,\n");
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   782
	pr_err("which is invalid and requires you to set the proper MAC\n");
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   783
	pr_err("address manually before continuing to enable this network\n");
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   784
	pr_err("device. Please inspect the EEPROM dump and report the\n");
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   785
	pr_err("issue to your hardware vendor or Intel Customer Support.\n");
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   786
	pr_err("/*********************/\n");
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   787
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   788
	kfree(data);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   789
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   790
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   791
/**
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   792
 * e1000_is_need_ioport - determine if an adapter needs ioport resources or not
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   793
 * @pdev: PCI device information struct
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   794
 *
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   795
 * Return true if an adapter needs ioport resources
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   796
 **/
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   797
static int e1000_is_need_ioport(struct pci_dev *pdev)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   798
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   799
	switch (pdev->device) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   800
	case E1000_DEV_ID_82540EM:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   801
	case E1000_DEV_ID_82540EM_LOM:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   802
	case E1000_DEV_ID_82540EP:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   803
	case E1000_DEV_ID_82540EP_LOM:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   804
	case E1000_DEV_ID_82540EP_LP:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   805
	case E1000_DEV_ID_82541EI:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   806
	case E1000_DEV_ID_82541EI_MOBILE:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   807
	case E1000_DEV_ID_82541ER:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   808
	case E1000_DEV_ID_82541ER_LOM:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   809
	case E1000_DEV_ID_82541GI:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   810
	case E1000_DEV_ID_82541GI_LF:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   811
	case E1000_DEV_ID_82541GI_MOBILE:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   812
	case E1000_DEV_ID_82544EI_COPPER:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   813
	case E1000_DEV_ID_82544EI_FIBER:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   814
	case E1000_DEV_ID_82544GC_COPPER:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   815
	case E1000_DEV_ID_82544GC_LOM:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   816
	case E1000_DEV_ID_82545EM_COPPER:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   817
	case E1000_DEV_ID_82545EM_FIBER:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   818
	case E1000_DEV_ID_82546EB_COPPER:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   819
	case E1000_DEV_ID_82546EB_FIBER:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   820
	case E1000_DEV_ID_82546EB_QUAD_COPPER:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   821
		return true;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   822
	default:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   823
		return false;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   824
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   825
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   826
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   827
static const struct net_device_ops e1000_netdev_ops = {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   828
	.ndo_open		= e1000_open,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   829
	.ndo_stop		= e1000_close,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   830
	.ndo_start_xmit		= e1000_xmit_frame,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   831
	.ndo_get_stats		= e1000_get_stats,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   832
	.ndo_set_rx_mode	= e1000_set_rx_mode,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   833
	.ndo_set_mac_address	= e1000_set_mac,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   834
	.ndo_tx_timeout 	= e1000_tx_timeout,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   835
	.ndo_change_mtu		= e1000_change_mtu,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   836
	.ndo_do_ioctl		= e1000_ioctl,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   837
	.ndo_validate_addr	= eth_validate_addr,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   838
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   839
	.ndo_vlan_rx_register	= e1000_vlan_rx_register,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   840
	.ndo_vlan_rx_add_vid	= e1000_vlan_rx_add_vid,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   841
	.ndo_vlan_rx_kill_vid	= e1000_vlan_rx_kill_vid,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   842
#ifdef CONFIG_NET_POLL_CONTROLLER
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   843
	.ndo_poll_controller	= e1000_netpoll,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   844
#endif
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   845
};
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   846
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   847
/**
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   848
 * e1000_init_hw_struct - initialize members of hw struct
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   849
 * @adapter: board private struct
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   850
 * @hw: structure used by e1000_hw.c
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   851
 *
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   852
 * Factors out initialization of the e1000_hw struct to its own function
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   853
 * that can be called very early at init (just after struct allocation).
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   854
 * Fields are initialized based on PCI device information and
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   855
 * OS network device settings (MTU size).
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   856
 * Returns negative error codes if MAC type setup fails.
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   857
 */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   858
static int e1000_init_hw_struct(struct e1000_adapter *adapter,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   859
				struct e1000_hw *hw)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   860
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   861
	struct pci_dev *pdev = adapter->pdev;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   862
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   863
	/* PCI config space info */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   864
	hw->vendor_id = pdev->vendor;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   865
	hw->device_id = pdev->device;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   866
	hw->subsystem_vendor_id = pdev->subsystem_vendor;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   867
	hw->subsystem_id = pdev->subsystem_device;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   868
	hw->revision_id = pdev->revision;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   869
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   870
	pci_read_config_word(pdev, PCI_COMMAND, &hw->pci_cmd_word);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   871
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   872
	hw->max_frame_size = adapter->netdev->mtu +
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   873
			     ENET_HEADER_SIZE + ETHERNET_FCS_SIZE;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   874
	hw->min_frame_size = MINIMUM_ETHERNET_FRAME_SIZE;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   875
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   876
	/* identify the MAC */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   877
	if (e1000_set_mac_type(hw)) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   878
		e_err(probe, "Unknown MAC Type\n");
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   879
		return -EIO;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   880
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   881
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   882
	switch (hw->mac_type) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   883
	default:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   884
		break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   885
	case e1000_82541:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   886
	case e1000_82547:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   887
	case e1000_82541_rev_2:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   888
	case e1000_82547_rev_2:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   889
		hw->phy_init_script = 1;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   890
		break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   891
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   892
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   893
	e1000_set_media_type(hw);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   894
	e1000_get_bus_info(hw);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   895
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   896
	hw->wait_autoneg_complete = false;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   897
	hw->tbi_compatibility_en = true;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   898
	hw->adaptive_ifs = true;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   899
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   900
	/* Copper options */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   901
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   902
	if (hw->media_type == e1000_media_type_copper) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   903
		hw->mdix = AUTO_ALL_MODES;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   904
		hw->disable_polarity_correction = false;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   905
		hw->master_slave = E1000_MASTER_SLAVE;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   906
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   907
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   908
	return 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   909
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   910
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   911
/**
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   912
 * e1000_probe - Device Initialization Routine
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   913
 * @pdev: PCI device information struct
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   914
 * @ent: entry in e1000_pci_tbl
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   915
 *
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   916
 * Returns 0 on success, negative on failure
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   917
 *
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   918
 * e1000_probe initializes an adapter identified by a pci_dev structure.
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   919
 * The OS initialization, configuring of the adapter private structure,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   920
 * and a hardware reset occur.
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   921
 **/
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   922
static int __devinit e1000_probe(struct pci_dev *pdev,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   923
				 const struct pci_device_id *ent)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   924
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   925
	struct net_device *netdev;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   926
	struct e1000_adapter *adapter;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   927
	struct e1000_hw *hw;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   928
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   929
	static int cards_found = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   930
	static int global_quad_port_a = 0; /* global ksp3 port a indication */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   931
	int i, err, pci_using_dac;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   932
	u16 eeprom_data = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   933
	u16 eeprom_apme_mask = E1000_EEPROM_APME;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   934
	int bars, need_ioport;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   935
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   936
	/* do not allocate ioport bars when not needed */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   937
	need_ioport = e1000_is_need_ioport(pdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   938
	if (need_ioport) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   939
		bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   940
		err = pci_enable_device(pdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   941
	} else {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   942
		bars = pci_select_bars(pdev, IORESOURCE_MEM);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   943
		err = pci_enable_device_mem(pdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   944
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   945
	if (err)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   946
		return err;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   947
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   948
	err = pci_request_selected_regions(pdev, bars, e1000_driver_name);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   949
	if (err)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   950
		goto err_pci_reg;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   951
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   952
	pci_set_master(pdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   953
	err = pci_save_state(pdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   954
	if (err)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   955
		goto err_alloc_etherdev;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   956
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   957
	err = -ENOMEM;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   958
	netdev = alloc_etherdev(sizeof(struct e1000_adapter));
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   959
	if (!netdev)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   960
		goto err_alloc_etherdev;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   961
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   962
	SET_NETDEV_DEV(netdev, &pdev->dev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   963
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   964
	pci_set_drvdata(pdev, netdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   965
	adapter = netdev_priv(netdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   966
	adapter->netdev = netdev;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   967
	adapter->pdev = pdev;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   968
	adapter->msg_enable = (1 << debug) - 1;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   969
	adapter->bars = bars;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   970
	adapter->need_ioport = need_ioport;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   971
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   972
	hw = &adapter->hw;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   973
	hw->back = adapter;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   974
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   975
	err = -EIO;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   976
	hw->hw_addr = pci_ioremap_bar(pdev, BAR_0);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   977
	if (!hw->hw_addr)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   978
		goto err_ioremap;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   979
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   980
	if (adapter->need_ioport) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   981
		for (i = BAR_1; i <= BAR_5; i++) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   982
			if (pci_resource_len(pdev, i) == 0)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   983
				continue;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   984
			if (pci_resource_flags(pdev, i) & IORESOURCE_IO) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   985
				hw->io_base = pci_resource_start(pdev, i);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   986
				break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   987
			}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   988
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   989
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   990
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   991
	/* make ready for any if (hw->...) below */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   992
	err = e1000_init_hw_struct(adapter, hw);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   993
	if (err)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   994
		goto err_sw_init;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   995
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   996
	/*
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   997
	 * there is a workaround being applied below that limits
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   998
	 * 64-bit DMA addresses to 64-bit hardware.  There are some
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   999
	 * 32-bit adapters that Tx hang when given 64-bit DMA addresses
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1000
	 */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1001
	pci_using_dac = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1002
	if ((hw->bus_type == e1000_bus_type_pcix) &&
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1003
	    !dma_set_mask(&pdev->dev, DMA_BIT_MASK(64))) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1004
		/*
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1005
		 * according to DMA-API-HOWTO, coherent calls will always
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1006
		 * succeed if the set call did
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1007
		 */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1008
		dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64));
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1009
		pci_using_dac = 1;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1010
	} else {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1011
		err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1012
		if (err) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1013
			pr_err("No usable DMA config, aborting\n");
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1014
			goto err_dma;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1015
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1016
		dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1017
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1018
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1019
	netdev->netdev_ops = &e1000_netdev_ops;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1020
	e1000_set_ethtool_ops(netdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1021
	netdev->watchdog_timeo = 5 * HZ;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1022
	netif_napi_add(netdev, &adapter->napi, e1000_clean, 64);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1023
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1024
	strncpy(netdev->name, pci_name(pdev), sizeof(netdev->name) - 1);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1025
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1026
	adapter->bd_number = cards_found;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1027
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1028
	/* setup the private structure */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1029
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1030
	err = e1000_sw_init(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1031
	if (err)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1032
		goto err_sw_init;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1033
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1034
	err = -EIO;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1035
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1036
	if (hw->mac_type >= e1000_82543) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1037
		netdev->features = NETIF_F_SG |
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1038
				   NETIF_F_HW_CSUM |
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1039
				   NETIF_F_HW_VLAN_TX |
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1040
				   NETIF_F_HW_VLAN_RX |
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1041
				   NETIF_F_HW_VLAN_FILTER;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1042
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1043
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1044
	if ((hw->mac_type >= e1000_82544) &&
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1045
	   (hw->mac_type != e1000_82547))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1046
		netdev->features |= NETIF_F_TSO;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1047
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1048
	if (pci_using_dac) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1049
		netdev->features |= NETIF_F_HIGHDMA;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1050
		netdev->vlan_features |= NETIF_F_HIGHDMA;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1051
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1052
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1053
	netdev->vlan_features |= NETIF_F_TSO;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1054
	netdev->vlan_features |= NETIF_F_HW_CSUM;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1055
	netdev->vlan_features |= NETIF_F_SG;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1056
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1057
	adapter->en_mng_pt = e1000_enable_mng_pass_thru(hw);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1058
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1059
	/* initialize eeprom parameters */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1060
	if (e1000_init_eeprom_params(hw)) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1061
		e_err(probe, "EEPROM initialization failed\n");
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1062
		goto err_eeprom;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1063
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1064
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1065
	/* before reading the EEPROM, reset the controller to
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1066
	 * put the device in a known good starting state */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1067
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1068
	e1000_reset_hw(hw);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1069
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1070
	/* make sure the EEPROM is good */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1071
	if (e1000_validate_eeprom_checksum(hw) < 0) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1072
		e_err(probe, "The EEPROM Checksum Is Not Valid\n");
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1073
		e1000_dump_eeprom(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1074
		/*
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1075
		 * set MAC address to all zeroes to invalidate and temporary
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1076
		 * disable this device for the user. This blocks regular
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1077
		 * traffic while still permitting ethtool ioctls from reaching
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1078
		 * the hardware as well as allowing the user to run the
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1079
		 * interface after manually setting a hw addr using
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1080
		 * `ip set address`
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1081
		 */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1082
		memset(hw->mac_addr, 0, netdev->addr_len);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1083
	} else {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1084
		/* copy the MAC address out of the EEPROM */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1085
		if (e1000_read_mac_addr(hw))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1086
			e_err(probe, "EEPROM Read Error\n");
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1087
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1088
	/* don't block initalization here due to bad MAC address */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1089
	memcpy(netdev->dev_addr, hw->mac_addr, netdev->addr_len);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1090
	memcpy(netdev->perm_addr, hw->mac_addr, netdev->addr_len);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1091
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1092
	if (!is_valid_ether_addr(netdev->perm_addr))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1093
		e_err(probe, "Invalid MAC Address\n");
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1094
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1095
	init_timer(&adapter->tx_fifo_stall_timer);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1096
	adapter->tx_fifo_stall_timer.function = e1000_82547_tx_fifo_stall;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1097
	adapter->tx_fifo_stall_timer.data = (unsigned long)adapter;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1098
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1099
	init_timer(&adapter->watchdog_timer);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1100
	adapter->watchdog_timer.function = e1000_watchdog;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1101
	adapter->watchdog_timer.data = (unsigned long) adapter;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1102
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1103
	init_timer(&adapter->phy_info_timer);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1104
	adapter->phy_info_timer.function = e1000_update_phy_info;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1105
	adapter->phy_info_timer.data = (unsigned long)adapter;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1106
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1107
	INIT_WORK(&adapter->fifo_stall_task, e1000_82547_tx_fifo_stall_task);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1108
	INIT_WORK(&adapter->reset_task, e1000_reset_task);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1109
	INIT_WORK(&adapter->phy_info_task, e1000_update_phy_info_task);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1110
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1111
	e1000_check_options(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1112
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1113
	/* Initial Wake on LAN setting
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1114
	 * If APM wake is enabled in the EEPROM,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1115
	 * enable the ACPI Magic Packet filter
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1116
	 */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1117
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1118
	switch (hw->mac_type) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1119
	case e1000_82542_rev2_0:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1120
	case e1000_82542_rev2_1:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1121
	case e1000_82543:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1122
		break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1123
	case e1000_82544:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1124
		e1000_read_eeprom(hw,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1125
			EEPROM_INIT_CONTROL2_REG, 1, &eeprom_data);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1126
		eeprom_apme_mask = E1000_EEPROM_82544_APM;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1127
		break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1128
	case e1000_82546:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1129
	case e1000_82546_rev_3:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1130
		if (er32(STATUS) & E1000_STATUS_FUNC_1){
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1131
			e1000_read_eeprom(hw,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1132
				EEPROM_INIT_CONTROL3_PORT_B, 1, &eeprom_data);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1133
			break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1134
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1135
		/* Fall Through */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1136
	default:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1137
		e1000_read_eeprom(hw,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1138
			EEPROM_INIT_CONTROL3_PORT_A, 1, &eeprom_data);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1139
		break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1140
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1141
	if (eeprom_data & eeprom_apme_mask)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1142
		adapter->eeprom_wol |= E1000_WUFC_MAG;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1143
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1144
	/* now that we have the eeprom settings, apply the special cases
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1145
	 * where the eeprom may be wrong or the board simply won't support
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1146
	 * wake on lan on a particular port */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1147
	switch (pdev->device) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1148
	case E1000_DEV_ID_82546GB_PCIE:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1149
		adapter->eeprom_wol = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1150
		break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1151
	case E1000_DEV_ID_82546EB_FIBER:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1152
	case E1000_DEV_ID_82546GB_FIBER:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1153
		/* Wake events only supported on port A for dual fiber
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1154
		 * regardless of eeprom setting */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1155
		if (er32(STATUS) & E1000_STATUS_FUNC_1)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1156
			adapter->eeprom_wol = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1157
		break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1158
	case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1159
		/* if quad port adapter, disable WoL on all but port A */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1160
		if (global_quad_port_a != 0)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1161
			adapter->eeprom_wol = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1162
		else
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1163
			adapter->quad_port_a = 1;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1164
		/* Reset for multiple quad port adapters */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1165
		if (++global_quad_port_a == 4)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1166
			global_quad_port_a = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1167
		break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1168
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1169
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1170
	/* initialize the wol settings based on the eeprom settings */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1171
	adapter->wol = adapter->eeprom_wol;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1172
	device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1173
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1174
	/* reset the hardware with the new settings */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1175
	e1000_reset(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1176
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1177
 	// offer device to EtherCAT master module
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1178
	adapter->ecdev = ecdev_offer(netdev, ec_poll, THIS_MODULE);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1179
	if (adapter->ecdev) {
2582
87e502828b3f Use return value of ecdev_open(); thanks to Patrick Bruenn.
Florian Pose <fp@igh-essen.com>
parents: 2471
diff changeset
  1180
		err = ecdev_open(adapter->ecdev);
87e502828b3f Use return value of ecdev_open(); thanks to Patrick Bruenn.
Florian Pose <fp@igh-essen.com>
parents: 2471
diff changeset
  1181
		if (err) {
2202
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1182
			ecdev_withdraw(adapter->ecdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1183
			goto err_register;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1184
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1185
	} else {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1186
		strcpy(netdev->name, "eth%d");
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1187
		err = register_netdev(netdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1188
		if (err)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1189
			goto err_register;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1190
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1191
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1192
	/* print bus type/speed/width info */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1193
	e_info(probe, "(PCI%s:%dMHz:%d-bit) %pM\n",
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1194
	       ((hw->bus_type == e1000_bus_type_pcix) ? "-X" : ""),
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1195
	       ((hw->bus_speed == e1000_bus_speed_133) ? 133 :
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1196
		(hw->bus_speed == e1000_bus_speed_120) ? 120 :
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1197
		(hw->bus_speed == e1000_bus_speed_100) ? 100 :
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1198
		(hw->bus_speed == e1000_bus_speed_66) ? 66 : 33),
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1199
	       ((hw->bus_width == e1000_bus_width_64) ? 64 : 32),
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1200
	       netdev->dev_addr);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1201
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1202
	if (!adapter->ecdev) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1203
		/* carrier off reporting is important to ethtool even BEFORE open */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1204
		netif_carrier_off(netdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1205
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1206
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1207
	e_info(probe, "Intel(R) PRO/1000 Network Connection\n");
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1208
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1209
	cards_found++;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1210
	return 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1211
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1212
err_register:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1213
err_eeprom:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1214
	e1000_phy_hw_reset(hw);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1215
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1216
	if (hw->flash_address)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1217
		iounmap(hw->flash_address);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1218
	kfree(adapter->tx_ring);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1219
	kfree(adapter->rx_ring);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1220
err_dma:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1221
err_sw_init:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1222
	iounmap(hw->hw_addr);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1223
err_ioremap:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1224
	free_netdev(netdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1225
err_alloc_etherdev:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1226
	pci_release_selected_regions(pdev, bars);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1227
err_pci_reg:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1228
	pci_disable_device(pdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1229
	return err;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1230
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1231
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1232
/**
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1233
 * e1000_remove - Device Removal Routine
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1234
 * @pdev: PCI device information struct
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1235
 *
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1236
 * e1000_remove is called by the PCI subsystem to alert the driver
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1237
 * that it should release a PCI device.  The could be caused by a
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1238
 * Hot-Plug event, or because the driver is going to be removed from
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1239
 * memory.
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1240
 **/
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1241
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1242
static void __devexit e1000_remove(struct pci_dev *pdev)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1243
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1244
	struct net_device *netdev = pci_get_drvdata(pdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1245
	struct e1000_adapter *adapter = netdev_priv(netdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1246
	struct e1000_hw *hw = &adapter->hw;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1247
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1248
	set_bit(__E1000_DOWN, &adapter->flags);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1249
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1250
	if (!adapter->ecdev) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1251
		del_timer_sync(&adapter->tx_fifo_stall_timer);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1252
		del_timer_sync(&adapter->watchdog_timer);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1253
		del_timer_sync(&adapter->phy_info_timer);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1254
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1255
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1256
	cancel_work_sync(&adapter->reset_task);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1257
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1258
	e1000_release_manageability(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1259
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1260
	if (adapter->ecdev) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1261
		ecdev_close(adapter->ecdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1262
		ecdev_withdraw(adapter->ecdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1263
	} else {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1264
		unregister_netdev(netdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1265
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1266
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1267
	e1000_phy_hw_reset(hw);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1268
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1269
	kfree(adapter->tx_ring);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1270
	kfree(adapter->rx_ring);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1271
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1272
	iounmap(hw->hw_addr);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1273
	if (hw->flash_address)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1274
		iounmap(hw->flash_address);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1275
	pci_release_selected_regions(pdev, adapter->bars);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1276
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1277
	free_netdev(netdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1278
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1279
	pci_disable_device(pdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1280
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1281
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1282
/**
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1283
 * e1000_sw_init - Initialize general software structures (struct e1000_adapter)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1284
 * @adapter: board private structure to initialize
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1285
 *
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1286
 * e1000_sw_init initializes the Adapter private data structure.
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1287
 * e1000_init_hw_struct MUST be called before this function
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1288
 **/
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1289
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1290
static int __devinit e1000_sw_init(struct e1000_adapter *adapter)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1291
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1292
	adapter->rx_buffer_len = MAXIMUM_ETHERNET_VLAN_SIZE;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1293
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1294
	adapter->num_tx_queues = 1;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1295
	adapter->num_rx_queues = 1;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1296
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1297
	if (e1000_alloc_queues(adapter)) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1298
		e_err(probe, "Unable to allocate memory for queues\n");
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1299
		return -ENOMEM;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1300
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1301
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1302
	/* Explicitly disable IRQ since the NIC can be in any state. */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1303
	e1000_irq_disable(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1304
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1305
	spin_lock_init(&adapter->stats_lock);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1306
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1307
	set_bit(__E1000_DOWN, &adapter->flags);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1308
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1309
	return 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1310
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1311
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1312
/**
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1313
 * e1000_alloc_queues - Allocate memory for all rings
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1314
 * @adapter: board private structure to initialize
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1315
 *
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1316
 * We allocate one ring per queue at run-time since we don't know the
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1317
 * number of queues at compile-time.
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1318
 **/
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1319
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1320
static int __devinit e1000_alloc_queues(struct e1000_adapter *adapter)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1321
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1322
	adapter->tx_ring = kcalloc(adapter->num_tx_queues,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1323
	                           sizeof(struct e1000_tx_ring), GFP_KERNEL);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1324
	if (!adapter->tx_ring)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1325
		return -ENOMEM;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1326
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1327
	adapter->rx_ring = kcalloc(adapter->num_rx_queues,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1328
	                           sizeof(struct e1000_rx_ring), GFP_KERNEL);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1329
	if (!adapter->rx_ring) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1330
		kfree(adapter->tx_ring);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1331
		return -ENOMEM;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1332
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1333
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1334
	return E1000_SUCCESS;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1335
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1336
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1337
/**
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1338
 * e1000_open - Called when a network interface is made active
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1339
 * @netdev: network interface device structure
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1340
 *
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1341
 * Returns 0 on success, negative value on failure
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1342
 *
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1343
 * The open entry point is called when a network interface is made
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1344
 * active by the system (IFF_UP).  At this point all resources needed
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1345
 * for transmit and receive operations are allocated, the interrupt
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1346
 * handler is registered with the OS, the watchdog timer is started,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1347
 * and the stack is notified that the interface is ready.
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1348
 **/
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1349
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1350
static int e1000_open(struct net_device *netdev)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1351
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1352
	struct e1000_adapter *adapter = netdev_priv(netdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1353
	struct e1000_hw *hw = &adapter->hw;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1354
	int err;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1355
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1356
	/* disallow open during test */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1357
	if (test_bit(__E1000_TESTING, &adapter->flags))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1358
		return -EBUSY;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1359
2469
634ba3b1eb95 Fixed possible segfault in e1000_open() function.
Florian Pose <fp@igh-essen.com>
parents: 2421
diff changeset
  1360
	if (!adapter->ecdev) {
634ba3b1eb95 Fixed possible segfault in e1000_open() function.
Florian Pose <fp@igh-essen.com>
parents: 2421
diff changeset
  1361
		netif_carrier_off(netdev);
634ba3b1eb95 Fixed possible segfault in e1000_open() function.
Florian Pose <fp@igh-essen.com>
parents: 2421
diff changeset
  1362
	}
2202
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1363
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1364
	/* allocate transmit descriptors */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1365
	err = e1000_setup_all_tx_resources(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1366
	if (err)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1367
		goto err_setup_tx;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1368
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1369
	/* allocate receive descriptors */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1370
	err = e1000_setup_all_rx_resources(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1371
	if (err)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1372
		goto err_setup_rx;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1373
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1374
	e1000_power_up_phy(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1375
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1376
	adapter->mng_vlan_id = E1000_MNG_VLAN_NONE;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1377
	if ((hw->mng_cookie.status &
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1378
			  E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT)) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1379
		e1000_update_mng_vlan(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1380
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1381
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1382
	/* before we allocate an interrupt, we must be ready to handle it.
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1383
	 * Setting DEBUG_SHIRQ in the kernel makes it fire an interrupt
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1384
	 * as soon as we call pci_request_irq, so we have to setup our
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1385
	 * clean_rx handler before we do so.  */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1386
	e1000_configure(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1387
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1388
	err = e1000_request_irq(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1389
	if (err)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1390
		goto err_req_irq;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1391
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1392
	/* From here on the code is the same as e1000_up() */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1393
	clear_bit(__E1000_DOWN, &adapter->flags);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1394
2469
634ba3b1eb95 Fixed possible segfault in e1000_open() function.
Florian Pose <fp@igh-essen.com>
parents: 2421
diff changeset
  1395
	if (!adapter->ecdev) {
634ba3b1eb95 Fixed possible segfault in e1000_open() function.
Florian Pose <fp@igh-essen.com>
parents: 2421
diff changeset
  1396
		napi_enable(&adapter->napi);
634ba3b1eb95 Fixed possible segfault in e1000_open() function.
Florian Pose <fp@igh-essen.com>
parents: 2421
diff changeset
  1397
634ba3b1eb95 Fixed possible segfault in e1000_open() function.
Florian Pose <fp@igh-essen.com>
parents: 2421
diff changeset
  1398
		e1000_irq_enable(adapter);
634ba3b1eb95 Fixed possible segfault in e1000_open() function.
Florian Pose <fp@igh-essen.com>
parents: 2421
diff changeset
  1399
634ba3b1eb95 Fixed possible segfault in e1000_open() function.
Florian Pose <fp@igh-essen.com>
parents: 2421
diff changeset
  1400
		netif_start_queue(netdev);
634ba3b1eb95 Fixed possible segfault in e1000_open() function.
Florian Pose <fp@igh-essen.com>
parents: 2421
diff changeset
  1401
	}
2202
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1402
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1403
	/* fire a link status change interrupt to start the watchdog */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1404
	ew32(ICS, E1000_ICS_LSC);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1405
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1406
	return E1000_SUCCESS;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1407
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1408
err_req_irq:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1409
	e1000_power_down_phy(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1410
	e1000_free_all_rx_resources(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1411
err_setup_rx:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1412
	e1000_free_all_tx_resources(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1413
err_setup_tx:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1414
	e1000_reset(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1415
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1416
	return err;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1417
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1418
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1419
/**
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1420
 * e1000_close - Disables a network interface
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1421
 * @netdev: network interface device structure
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1422
 *
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1423
 * Returns 0, this is not allowed to fail
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1424
 *
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1425
 * The close entry point is called when an interface is de-activated
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1426
 * by the OS.  The hardware is still under the drivers control, but
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1427
 * needs to be disabled.  A global MAC reset is issued to stop the
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1428
 * hardware, and all transmit and receive resources are freed.
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1429
 **/
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1430
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1431
static int e1000_close(struct net_device *netdev)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1432
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1433
	struct e1000_adapter *adapter = netdev_priv(netdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1434
	struct e1000_hw *hw = &adapter->hw;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1435
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1436
	WARN_ON(test_bit(__E1000_RESETTING, &adapter->flags));
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1437
	e1000_down(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1438
	e1000_power_down_phy(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1439
	e1000_free_irq(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1440
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1441
	e1000_free_all_tx_resources(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1442
	e1000_free_all_rx_resources(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1443
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1444
	/* kill manageability vlan ID if supported, but not if a vlan with
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1445
	 * the same ID is registered on the host OS (let 8021q kill it) */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1446
	if ((hw->mng_cookie.status &
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1447
			  E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT) &&
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1448
	     !(adapter->vlgrp &&
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1449
	       vlan_group_get_device(adapter->vlgrp, adapter->mng_vlan_id))) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1450
		e1000_vlan_rx_kill_vid(netdev, adapter->mng_vlan_id);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1451
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1452
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1453
	return 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1454
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1455
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1456
/**
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1457
 * e1000_check_64k_bound - check that memory doesn't cross 64kB boundary
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1458
 * @adapter: address of board private structure
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1459
 * @start: address of beginning of memory
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1460
 * @len: length of memory
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1461
 **/
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1462
static bool e1000_check_64k_bound(struct e1000_adapter *adapter, void *start,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1463
				  unsigned long len)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1464
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1465
	struct e1000_hw *hw = &adapter->hw;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1466
	unsigned long begin = (unsigned long)start;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1467
	unsigned long end = begin + len;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1468
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1469
	/* First rev 82545 and 82546 need to not allow any memory
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1470
	 * write location to cross 64k boundary due to errata 23 */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1471
	if (hw->mac_type == e1000_82545 ||
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1472
	    hw->mac_type == e1000_82546) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1473
		return ((begin ^ (end - 1)) >> 16) != 0 ? false : true;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1474
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1475
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1476
	return true;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1477
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1478
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1479
/**
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1480
 * e1000_setup_tx_resources - allocate Tx resources (Descriptors)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1481
 * @adapter: board private structure
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1482
 * @txdr:    tx descriptor ring (for a specific queue) to setup
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1483
 *
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1484
 * Return 0 on success, negative on failure
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1485
 **/
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1486
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1487
static int e1000_setup_tx_resources(struct e1000_adapter *adapter,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1488
				    struct e1000_tx_ring *txdr)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1489
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1490
	struct pci_dev *pdev = adapter->pdev;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1491
	int size;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1492
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1493
	size = sizeof(struct e1000_buffer) * txdr->count;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1494
	txdr->buffer_info = vmalloc(size);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1495
	if (!txdr->buffer_info) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1496
		e_err(probe, "Unable to allocate memory for the Tx descriptor "
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1497
		      "ring\n");
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1498
		return -ENOMEM;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1499
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1500
	memset(txdr->buffer_info, 0, size);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1501
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1502
	/* round up to nearest 4K */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1503
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1504
	txdr->size = txdr->count * sizeof(struct e1000_tx_desc);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1505
	txdr->size = ALIGN(txdr->size, 4096);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1506
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1507
	txdr->desc = dma_alloc_coherent(&pdev->dev, txdr->size, &txdr->dma,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1508
					GFP_KERNEL);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1509
	if (!txdr->desc) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1510
setup_tx_desc_die:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1511
		vfree(txdr->buffer_info);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1512
		e_err(probe, "Unable to allocate memory for the Tx descriptor "
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1513
		      "ring\n");
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1514
		return -ENOMEM;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1515
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1516
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1517
	/* Fix for errata 23, can't cross 64kB boundary */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1518
	if (!e1000_check_64k_bound(adapter, txdr->desc, txdr->size)) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1519
		void *olddesc = txdr->desc;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1520
		dma_addr_t olddma = txdr->dma;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1521
		e_err(tx_err, "txdr align check failed: %u bytes at %p\n",
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1522
		      txdr->size, txdr->desc);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1523
		/* Try again, without freeing the previous */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1524
		txdr->desc = dma_alloc_coherent(&pdev->dev, txdr->size,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1525
						&txdr->dma, GFP_KERNEL);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1526
		/* Failed allocation, critical failure */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1527
		if (!txdr->desc) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1528
			dma_free_coherent(&pdev->dev, txdr->size, olddesc,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1529
					  olddma);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1530
			goto setup_tx_desc_die;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1531
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1532
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1533
		if (!e1000_check_64k_bound(adapter, txdr->desc, txdr->size)) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1534
			/* give up */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1535
			dma_free_coherent(&pdev->dev, txdr->size, txdr->desc,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1536
					  txdr->dma);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1537
			dma_free_coherent(&pdev->dev, txdr->size, olddesc,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1538
					  olddma);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1539
			e_err(probe, "Unable to allocate aligned memory "
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1540
			      "for the transmit descriptor ring\n");
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1541
			vfree(txdr->buffer_info);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1542
			return -ENOMEM;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1543
		} else {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1544
			/* Free old allocation, new allocation was successful */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1545
			dma_free_coherent(&pdev->dev, txdr->size, olddesc,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1546
					  olddma);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1547
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1548
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1549
	memset(txdr->desc, 0, txdr->size);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1550
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1551
	txdr->next_to_use = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1552
	txdr->next_to_clean = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1553
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1554
	return 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1555
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1556
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1557
/**
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1558
 * e1000_setup_all_tx_resources - wrapper to allocate Tx resources
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1559
 * 				  (Descriptors) for all queues
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1560
 * @adapter: board private structure
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1561
 *
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1562
 * Return 0 on success, negative on failure
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1563
 **/
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1564
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1565
int e1000_setup_all_tx_resources(struct e1000_adapter *adapter)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1566
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1567
	int i, err = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1568
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1569
	for (i = 0; i < adapter->num_tx_queues; i++) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1570
		err = e1000_setup_tx_resources(adapter, &adapter->tx_ring[i]);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1571
		if (err) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1572
			e_err(probe, "Allocation for Tx Queue %u failed\n", i);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1573
			for (i-- ; i >= 0; i--)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1574
				e1000_free_tx_resources(adapter,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1575
							&adapter->tx_ring[i]);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1576
			break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1577
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1578
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1579
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1580
	return err;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1581
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1582
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1583
/**
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1584
 * e1000_configure_tx - Configure 8254x Transmit Unit after Reset
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1585
 * @adapter: board private structure
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1586
 *
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1587
 * Configure the Tx unit of the MAC after a reset.
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1588
 **/
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1589
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1590
static void e1000_configure_tx(struct e1000_adapter *adapter)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1591
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1592
	u64 tdba;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1593
	struct e1000_hw *hw = &adapter->hw;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1594
	u32 tdlen, tctl, tipg;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1595
	u32 ipgr1, ipgr2;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1596
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1597
	/* Setup the HW Tx Head and Tail descriptor pointers */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1598
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1599
	switch (adapter->num_tx_queues) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1600
	case 1:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1601
	default:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1602
		tdba = adapter->tx_ring[0].dma;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1603
		tdlen = adapter->tx_ring[0].count *
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1604
			sizeof(struct e1000_tx_desc);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1605
		ew32(TDLEN, tdlen);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1606
		ew32(TDBAH, (tdba >> 32));
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1607
		ew32(TDBAL, (tdba & 0x00000000ffffffffULL));
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1608
		ew32(TDT, 0);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1609
		ew32(TDH, 0);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1610
		adapter->tx_ring[0].tdh = ((hw->mac_type >= e1000_82543) ? E1000_TDH : E1000_82542_TDH);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1611
		adapter->tx_ring[0].tdt = ((hw->mac_type >= e1000_82543) ? E1000_TDT : E1000_82542_TDT);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1612
		break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1613
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1614
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1615
	/* Set the default values for the Tx Inter Packet Gap timer */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1616
	if ((hw->media_type == e1000_media_type_fiber ||
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1617
	     hw->media_type == e1000_media_type_internal_serdes))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1618
		tipg = DEFAULT_82543_TIPG_IPGT_FIBER;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1619
	else
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1620
		tipg = DEFAULT_82543_TIPG_IPGT_COPPER;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1621
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1622
	switch (hw->mac_type) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1623
	case e1000_82542_rev2_0:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1624
	case e1000_82542_rev2_1:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1625
		tipg = DEFAULT_82542_TIPG_IPGT;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1626
		ipgr1 = DEFAULT_82542_TIPG_IPGR1;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1627
		ipgr2 = DEFAULT_82542_TIPG_IPGR2;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1628
		break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1629
	default:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1630
		ipgr1 = DEFAULT_82543_TIPG_IPGR1;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1631
		ipgr2 = DEFAULT_82543_TIPG_IPGR2;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1632
		break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1633
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1634
	tipg |= ipgr1 << E1000_TIPG_IPGR1_SHIFT;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1635
	tipg |= ipgr2 << E1000_TIPG_IPGR2_SHIFT;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1636
	ew32(TIPG, tipg);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1637
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1638
	/* Set the Tx Interrupt Delay register */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1639
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1640
	ew32(TIDV, adapter->tx_int_delay);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1641
	if (hw->mac_type >= e1000_82540)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1642
		ew32(TADV, adapter->tx_abs_int_delay);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1643
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1644
	/* Program the Transmit Control Register */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1645
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1646
	tctl = er32(TCTL);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1647
	tctl &= ~E1000_TCTL_CT;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1648
	tctl |= E1000_TCTL_PSP | E1000_TCTL_RTLC |
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1649
		(E1000_COLLISION_THRESHOLD << E1000_CT_SHIFT);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1650
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1651
	e1000_config_collision_dist(hw);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1652
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1653
	/* Setup Transmit Descriptor Settings for eop descriptor */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1654
	adapter->txd_cmd = E1000_TXD_CMD_EOP | E1000_TXD_CMD_IFCS;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1655
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1656
	/* only set IDE if we are delaying interrupts using the timers */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1657
	if (adapter->tx_int_delay)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1658
		adapter->txd_cmd |= E1000_TXD_CMD_IDE;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1659
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1660
	if (hw->mac_type < e1000_82543)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1661
		adapter->txd_cmd |= E1000_TXD_CMD_RPS;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1662
	else
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1663
		adapter->txd_cmd |= E1000_TXD_CMD_RS;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1664
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1665
	/* Cache if we're 82544 running in PCI-X because we'll
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1666
	 * need this to apply a workaround later in the send path. */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1667
	if (hw->mac_type == e1000_82544 &&
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1668
	    hw->bus_type == e1000_bus_type_pcix)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1669
		adapter->pcix_82544 = 1;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1670
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1671
	ew32(TCTL, tctl);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1672
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1673
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1674
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1675
/**
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1676
 * e1000_setup_rx_resources - allocate Rx resources (Descriptors)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1677
 * @adapter: board private structure
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1678
 * @rxdr:    rx descriptor ring (for a specific queue) to setup
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1679
 *
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1680
 * Returns 0 on success, negative on failure
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1681
 **/
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1682
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1683
static int e1000_setup_rx_resources(struct e1000_adapter *adapter,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1684
				    struct e1000_rx_ring *rxdr)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1685
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1686
	struct pci_dev *pdev = adapter->pdev;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1687
	int size, desc_len;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1688
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1689
	size = sizeof(struct e1000_buffer) * rxdr->count;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1690
	rxdr->buffer_info = vmalloc(size);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1691
	if (!rxdr->buffer_info) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1692
		e_err(probe, "Unable to allocate memory for the Rx descriptor "
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1693
		      "ring\n");
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1694
		return -ENOMEM;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1695
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1696
	memset(rxdr->buffer_info, 0, size);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1697
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1698
	desc_len = sizeof(struct e1000_rx_desc);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1699
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1700
	/* Round up to nearest 4K */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1701
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1702
	rxdr->size = rxdr->count * desc_len;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1703
	rxdr->size = ALIGN(rxdr->size, 4096);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1704
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1705
	rxdr->desc = dma_alloc_coherent(&pdev->dev, rxdr->size, &rxdr->dma,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1706
					GFP_KERNEL);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1707
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1708
	if (!rxdr->desc) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1709
		e_err(probe, "Unable to allocate memory for the Rx descriptor "
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1710
		      "ring\n");
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1711
setup_rx_desc_die:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1712
		vfree(rxdr->buffer_info);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1713
		return -ENOMEM;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1714
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1715
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1716
	/* Fix for errata 23, can't cross 64kB boundary */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1717
	if (!e1000_check_64k_bound(adapter, rxdr->desc, rxdr->size)) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1718
		void *olddesc = rxdr->desc;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1719
		dma_addr_t olddma = rxdr->dma;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1720
		e_err(rx_err, "rxdr align check failed: %u bytes at %p\n",
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1721
		      rxdr->size, rxdr->desc);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1722
		/* Try again, without freeing the previous */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1723
		rxdr->desc = dma_alloc_coherent(&pdev->dev, rxdr->size,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1724
						&rxdr->dma, GFP_KERNEL);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1725
		/* Failed allocation, critical failure */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1726
		if (!rxdr->desc) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1727
			dma_free_coherent(&pdev->dev, rxdr->size, olddesc,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1728
					  olddma);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1729
			e_err(probe, "Unable to allocate memory for the Rx "
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1730
			      "descriptor ring\n");
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1731
			goto setup_rx_desc_die;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1732
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1733
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1734
		if (!e1000_check_64k_bound(adapter, rxdr->desc, rxdr->size)) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1735
			/* give up */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1736
			dma_free_coherent(&pdev->dev, rxdr->size, rxdr->desc,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1737
					  rxdr->dma);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1738
			dma_free_coherent(&pdev->dev, rxdr->size, olddesc,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1739
					  olddma);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1740
			e_err(probe, "Unable to allocate aligned memory for "
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1741
			      "the Rx descriptor ring\n");
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1742
			goto setup_rx_desc_die;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1743
		} else {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1744
			/* Free old allocation, new allocation was successful */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1745
			dma_free_coherent(&pdev->dev, rxdr->size, olddesc,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1746
					  olddma);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1747
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1748
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1749
	memset(rxdr->desc, 0, rxdr->size);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1750
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1751
	rxdr->next_to_clean = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1752
	rxdr->next_to_use = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1753
	rxdr->rx_skb_top = NULL;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1754
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1755
	return 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1756
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1757
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1758
/**
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1759
 * e1000_setup_all_rx_resources - wrapper to allocate Rx resources
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1760
 * 				  (Descriptors) for all queues
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1761
 * @adapter: board private structure
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1762
 *
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1763
 * Return 0 on success, negative on failure
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1764
 **/
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1765
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1766
int e1000_setup_all_rx_resources(struct e1000_adapter *adapter)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1767
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1768
	int i, err = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1769
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1770
	for (i = 0; i < adapter->num_rx_queues; i++) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1771
		err = e1000_setup_rx_resources(adapter, &adapter->rx_ring[i]);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1772
		if (err) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1773
			e_err(probe, "Allocation for Rx Queue %u failed\n", i);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1774
			for (i-- ; i >= 0; i--)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1775
				e1000_free_rx_resources(adapter,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1776
							&adapter->rx_ring[i]);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1777
			break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1778
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1779
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1780
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1781
	return err;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1782
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1783
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1784
/**
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1785
 * e1000_setup_rctl - configure the receive control registers
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1786
 * @adapter: Board private structure
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1787
 **/
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1788
static void e1000_setup_rctl(struct e1000_adapter *adapter)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1789
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1790
	struct e1000_hw *hw = &adapter->hw;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1791
	u32 rctl;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1792
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1793
	rctl = er32(RCTL);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1794
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1795
	rctl &= ~(3 << E1000_RCTL_MO_SHIFT);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1796
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1797
	rctl |= E1000_RCTL_EN | E1000_RCTL_BAM |
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1798
		E1000_RCTL_LBM_NO | E1000_RCTL_RDMTS_HALF |
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1799
		(hw->mc_filter_type << E1000_RCTL_MO_SHIFT);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1800
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1801
	if (hw->tbi_compatibility_on == 1)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1802
		rctl |= E1000_RCTL_SBP;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1803
	else
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1804
		rctl &= ~E1000_RCTL_SBP;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1805
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1806
	if (adapter->netdev->mtu <= ETH_DATA_LEN)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1807
		rctl &= ~E1000_RCTL_LPE;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1808
	else
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1809
		rctl |= E1000_RCTL_LPE;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1810
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1811
	/* Setup buffer sizes */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1812
	rctl &= ~E1000_RCTL_SZ_4096;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1813
	rctl |= E1000_RCTL_BSEX;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1814
	switch (adapter->rx_buffer_len) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1815
		case E1000_RXBUFFER_2048:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1816
		default:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1817
			rctl |= E1000_RCTL_SZ_2048;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1818
			rctl &= ~E1000_RCTL_BSEX;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1819
			break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1820
		case E1000_RXBUFFER_4096:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1821
			rctl |= E1000_RCTL_SZ_4096;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1822
			break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1823
		case E1000_RXBUFFER_8192:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1824
			rctl |= E1000_RCTL_SZ_8192;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1825
			break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1826
		case E1000_RXBUFFER_16384:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1827
			rctl |= E1000_RCTL_SZ_16384;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1828
			break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1829
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1830
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1831
	ew32(RCTL, rctl);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1832
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1833
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1834
/**
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1835
 * e1000_configure_rx - Configure 8254x Receive Unit after Reset
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1836
 * @adapter: board private structure
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1837
 *
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1838
 * Configure the Rx unit of the MAC after a reset.
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1839
 **/
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1840
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1841
static void e1000_configure_rx(struct e1000_adapter *adapter)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1842
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1843
	u64 rdba;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1844
	struct e1000_hw *hw = &adapter->hw;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1845
	u32 rdlen, rctl, rxcsum;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1846
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1847
	if (adapter->netdev->mtu > ETH_DATA_LEN) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1848
		rdlen = adapter->rx_ring[0].count *
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1849
		        sizeof(struct e1000_rx_desc);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1850
		adapter->clean_rx = e1000_clean_jumbo_rx_irq;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1851
		adapter->alloc_rx_buf = e1000_alloc_jumbo_rx_buffers;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1852
	} else {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1853
		rdlen = adapter->rx_ring[0].count *
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1854
		        sizeof(struct e1000_rx_desc);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1855
		adapter->clean_rx = e1000_clean_rx_irq;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1856
		adapter->alloc_rx_buf = e1000_alloc_rx_buffers;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1857
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1858
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1859
	/* disable receives while setting up the descriptors */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1860
	rctl = er32(RCTL);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1861
	ew32(RCTL, rctl & ~E1000_RCTL_EN);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1862
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1863
	/* set the Receive Delay Timer Register */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1864
	ew32(RDTR, adapter->rx_int_delay);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1865
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1866
	if (hw->mac_type >= e1000_82540) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1867
		ew32(RADV, adapter->rx_abs_int_delay);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1868
		if (adapter->itr_setting != 0)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1869
			ew32(ITR, 1000000000 / (adapter->itr * 256));
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1870
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1871
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1872
	/* Setup the HW Rx Head and Tail Descriptor Pointers and
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1873
	 * the Base and Length of the Rx Descriptor Ring */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1874
	switch (adapter->num_rx_queues) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1875
	case 1:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1876
	default:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1877
		rdba = adapter->rx_ring[0].dma;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1878
		ew32(RDLEN, rdlen);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1879
		ew32(RDBAH, (rdba >> 32));
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1880
		ew32(RDBAL, (rdba & 0x00000000ffffffffULL));
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1881
		ew32(RDT, 0);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1882
		ew32(RDH, 0);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1883
		adapter->rx_ring[0].rdh = ((hw->mac_type >= e1000_82543) ? E1000_RDH : E1000_82542_RDH);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1884
		adapter->rx_ring[0].rdt = ((hw->mac_type >= e1000_82543) ? E1000_RDT : E1000_82542_RDT);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1885
		break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1886
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1887
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1888
	/* Enable 82543 Receive Checksum Offload for TCP and UDP */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1889
	if (hw->mac_type >= e1000_82543) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1890
		rxcsum = er32(RXCSUM);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1891
		if (adapter->rx_csum)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1892
			rxcsum |= E1000_RXCSUM_TUOFL;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1893
		else
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1894
			/* don't need to clear IPPCSE as it defaults to 0 */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1895
			rxcsum &= ~E1000_RXCSUM_TUOFL;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1896
		ew32(RXCSUM, rxcsum);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1897
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1898
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1899
	/* Enable Receives */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1900
	ew32(RCTL, rctl);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1901
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1902
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1903
/**
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1904
 * e1000_free_tx_resources - Free Tx Resources per Queue
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1905
 * @adapter: board private structure
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1906
 * @tx_ring: Tx descriptor ring for a specific queue
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1907
 *
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1908
 * Free all transmit software resources
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1909
 **/
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1910
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1911
static void e1000_free_tx_resources(struct e1000_adapter *adapter,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1912
				    struct e1000_tx_ring *tx_ring)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1913
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1914
	struct pci_dev *pdev = adapter->pdev;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1915
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1916
	e1000_clean_tx_ring(adapter, tx_ring);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1917
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1918
	vfree(tx_ring->buffer_info);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1919
	tx_ring->buffer_info = NULL;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1920
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1921
	dma_free_coherent(&pdev->dev, tx_ring->size, tx_ring->desc,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1922
			  tx_ring->dma);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1923
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1924
	tx_ring->desc = NULL;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1925
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1926
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1927
/**
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1928
 * e1000_free_all_tx_resources - Free Tx Resources for All Queues
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1929
 * @adapter: board private structure
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1930
 *
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1931
 * Free all transmit software resources
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1932
 **/
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1933
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1934
void e1000_free_all_tx_resources(struct e1000_adapter *adapter)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1935
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1936
	int i;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1937
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1938
	for (i = 0; i < adapter->num_tx_queues; i++)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1939
		e1000_free_tx_resources(adapter, &adapter->tx_ring[i]);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1940
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1941
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1942
static void e1000_unmap_and_free_tx_resource(struct e1000_adapter *adapter,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1943
					     struct e1000_buffer *buffer_info)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1944
{
2289
1c75f52e5c0f Minor: Indentation and braces.
Florian Pose <fp@igh-essen.com>
parents: 2233
diff changeset
  1945
	if (adapter->ecdev) {
2202
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1946
		return;
2289
1c75f52e5c0f Minor: Indentation and braces.
Florian Pose <fp@igh-essen.com>
parents: 2233
diff changeset
  1947
	}
2202
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1948
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1949
	if (buffer_info->dma) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1950
		if (buffer_info->mapped_as_page)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1951
			dma_unmap_page(&adapter->pdev->dev, buffer_info->dma,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1952
				       buffer_info->length, DMA_TO_DEVICE);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1953
		else
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1954
			dma_unmap_single(&adapter->pdev->dev, buffer_info->dma,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1955
					 buffer_info->length,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1956
					 DMA_TO_DEVICE);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1957
		buffer_info->dma = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1958
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1959
	if (buffer_info->skb) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1960
		dev_kfree_skb_any(buffer_info->skb);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1961
		buffer_info->skb = NULL;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1962
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1963
	buffer_info->time_stamp = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1964
	/* buffer_info must be completely set up in the transmit path */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1965
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1966
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1967
/**
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1968
 * e1000_clean_tx_ring - Free Tx Buffers
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1969
 * @adapter: board private structure
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1970
 * @tx_ring: ring to be cleaned
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1971
 **/
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1972
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1973
static void e1000_clean_tx_ring(struct e1000_adapter *adapter,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1974
				struct e1000_tx_ring *tx_ring)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1975
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1976
	struct e1000_hw *hw = &adapter->hw;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1977
	struct e1000_buffer *buffer_info;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1978
	unsigned long size;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1979
	unsigned int i;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1980
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1981
	/* Free all the Tx ring sk_buffs */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1982
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1983
	for (i = 0; i < tx_ring->count; i++) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1984
		buffer_info = &tx_ring->buffer_info[i];
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1985
		e1000_unmap_and_free_tx_resource(adapter, buffer_info);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1986
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1987
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1988
	size = sizeof(struct e1000_buffer) * tx_ring->count;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1989
	memset(tx_ring->buffer_info, 0, size);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1990
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1991
	/* Zero out the descriptor ring */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1992
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1993
	memset(tx_ring->desc, 0, tx_ring->size);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1994
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1995
	tx_ring->next_to_use = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1996
	tx_ring->next_to_clean = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1997
	tx_ring->last_tx_tso = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1998
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1999
	writel(0, hw->hw_addr + tx_ring->tdh);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2000
	writel(0, hw->hw_addr + tx_ring->tdt);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2001
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2002
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2003
/**
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2004
 * e1000_clean_all_tx_rings - Free Tx Buffers for all queues
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2005
 * @adapter: board private structure
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2006
 **/
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2007
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2008
static void e1000_clean_all_tx_rings(struct e1000_adapter *adapter)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2009
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2010
	int i;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2011
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2012
	for (i = 0; i < adapter->num_tx_queues; i++)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2013
		e1000_clean_tx_ring(adapter, &adapter->tx_ring[i]);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2014
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2015
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2016
/**
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2017
 * e1000_free_rx_resources - Free Rx Resources
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2018
 * @adapter: board private structure
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2019
 * @rx_ring: ring to clean the resources from
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2020
 *
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2021
 * Free all receive software resources
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2022
 **/
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2023
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2024
static void e1000_free_rx_resources(struct e1000_adapter *adapter,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2025
				    struct e1000_rx_ring *rx_ring)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2026
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2027
	struct pci_dev *pdev = adapter->pdev;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2028
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2029
	e1000_clean_rx_ring(adapter, rx_ring);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2030
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2031
	vfree(rx_ring->buffer_info);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2032
	rx_ring->buffer_info = NULL;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2033
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2034
	dma_free_coherent(&pdev->dev, rx_ring->size, rx_ring->desc,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2035
			  rx_ring->dma);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2036
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2037
	rx_ring->desc = NULL;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2038
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2039
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2040
/**
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2041
 * e1000_free_all_rx_resources - Free Rx Resources for All Queues
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2042
 * @adapter: board private structure
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2043
 *
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2044
 * Free all receive software resources
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2045
 **/
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2046
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2047
void e1000_free_all_rx_resources(struct e1000_adapter *adapter)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2048
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2049
	int i;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2050
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2051
	for (i = 0; i < adapter->num_rx_queues; i++)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2052
		e1000_free_rx_resources(adapter, &adapter->rx_ring[i]);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2053
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2054
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2055
/**
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2056
 * e1000_clean_rx_ring - Free Rx Buffers per Queue
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2057
 * @adapter: board private structure
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2058
 * @rx_ring: ring to free buffers from
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2059
 **/
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2060
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2061
static void e1000_clean_rx_ring(struct e1000_adapter *adapter,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2062
				struct e1000_rx_ring *rx_ring)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2063
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2064
	struct e1000_hw *hw = &adapter->hw;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2065
	struct e1000_buffer *buffer_info;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2066
	struct pci_dev *pdev = adapter->pdev;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2067
	unsigned long size;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2068
	unsigned int i;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2069
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2070
	/* Free all the Rx ring sk_buffs */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2071
	for (i = 0; i < rx_ring->count; i++) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2072
		buffer_info = &rx_ring->buffer_info[i];
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2073
		if (buffer_info->dma &&
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2074
		    adapter->clean_rx == e1000_clean_rx_irq) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2075
			dma_unmap_single(&pdev->dev, buffer_info->dma,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2076
			                 buffer_info->length,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2077
					 DMA_FROM_DEVICE);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2078
		} else if (buffer_info->dma &&
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2079
		           adapter->clean_rx == e1000_clean_jumbo_rx_irq) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2080
			dma_unmap_page(&pdev->dev, buffer_info->dma,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2081
				       buffer_info->length,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2082
				       DMA_FROM_DEVICE);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2083
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2084
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2085
		buffer_info->dma = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2086
		if (buffer_info->page) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2087
			put_page(buffer_info->page);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2088
			buffer_info->page = NULL;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2089
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2090
		if (buffer_info->skb) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2091
			dev_kfree_skb(buffer_info->skb);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2092
			buffer_info->skb = NULL;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2093
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2094
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2095
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2096
	/* there also may be some cached data from a chained receive */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2097
	if (rx_ring->rx_skb_top) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2098
		dev_kfree_skb(rx_ring->rx_skb_top);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2099
		rx_ring->rx_skb_top = NULL;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2100
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2101
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2102
	size = sizeof(struct e1000_buffer) * rx_ring->count;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2103
	memset(rx_ring->buffer_info, 0, size);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2104
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2105
	/* Zero out the descriptor ring */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2106
	memset(rx_ring->desc, 0, rx_ring->size);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2107
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2108
	rx_ring->next_to_clean = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2109
	rx_ring->next_to_use = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2110
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2111
	writel(0, hw->hw_addr + rx_ring->rdh);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2112
	writel(0, hw->hw_addr + rx_ring->rdt);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2113
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2114
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2115
/**
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2116
 * e1000_clean_all_rx_rings - Free Rx Buffers for all queues
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2117
 * @adapter: board private structure
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2118
 **/
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2119
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2120
static void e1000_clean_all_rx_rings(struct e1000_adapter *adapter)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2121
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2122
	int i;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2123
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2124
	for (i = 0; i < adapter->num_rx_queues; i++)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2125
		e1000_clean_rx_ring(adapter, &adapter->rx_ring[i]);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2126
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2127
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2128
/* The 82542 2.0 (revision 2) needs to have the receive unit in reset
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2129
 * and memory write and invalidate disabled for certain operations
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2130
 */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2131
static void e1000_enter_82542_rst(struct e1000_adapter *adapter)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2132
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2133
	struct e1000_hw *hw = &adapter->hw;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2134
	struct net_device *netdev = adapter->netdev;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2135
	u32 rctl;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2136
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2137
	e1000_pci_clear_mwi(hw);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2138
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2139
	rctl = er32(RCTL);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2140
	rctl |= E1000_RCTL_RST;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2141
	ew32(RCTL, rctl);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2142
	E1000_WRITE_FLUSH();
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2143
	mdelay(5);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2144
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2145
	if (!adapter->ecdev && netif_running(netdev))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2146
		e1000_clean_all_rx_rings(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2147
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2148
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2149
static void e1000_leave_82542_rst(struct e1000_adapter *adapter)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2150
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2151
	struct e1000_hw *hw = &adapter->hw;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2152
	struct net_device *netdev = adapter->netdev;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2153
	u32 rctl;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2154
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2155
	rctl = er32(RCTL);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2156
	rctl &= ~E1000_RCTL_RST;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2157
	ew32(RCTL, rctl);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2158
	E1000_WRITE_FLUSH();
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2159
	mdelay(5);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2160
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2161
	if (hw->pci_cmd_word & PCI_COMMAND_INVALIDATE)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2162
		e1000_pci_set_mwi(hw);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2163
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2164
	if (!adapter->netdev && netif_running(netdev)) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2165
		/* No need to loop, because 82542 supports only 1 queue */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2166
		struct e1000_rx_ring *ring = &adapter->rx_ring[0];
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2167
		e1000_configure_rx(adapter);
2421
bc2d4bf9cbe5 Removed trailing spaces.
Florian Pose <fp@igh-essen.com>
parents: 2289
diff changeset
  2168
		if (adapter->ecdev) {
2202
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2169
			/* fill rx ring completely! */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2170
			adapter->alloc_rx_buf(adapter, ring, ring->count);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2171
		} else {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2172
            /* this one leaves the last ring element unallocated! */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2173
			adapter->alloc_rx_buf(adapter, ring, E1000_DESC_UNUSED(ring));
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2174
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2175
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2176
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2177
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2178
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2179
/**
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2180
 * e1000_set_mac - Change the Ethernet Address of the NIC
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2181
 * @netdev: network interface device structure
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2182
 * @p: pointer to an address structure
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2183
 *
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2184
 * Returns 0 on success, negative on failure
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2185
 **/
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2186
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2187
static int e1000_set_mac(struct net_device *netdev, void *p)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2188
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2189
	struct e1000_adapter *adapter = netdev_priv(netdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2190
	struct e1000_hw *hw = &adapter->hw;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2191
	struct sockaddr *addr = p;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2192
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2193
	if (!is_valid_ether_addr(addr->sa_data))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2194
		return -EADDRNOTAVAIL;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2195
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2196
	/* 82542 2.0 needs to be in reset to write receive address registers */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2197
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2198
	if (hw->mac_type == e1000_82542_rev2_0)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2199
		e1000_enter_82542_rst(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2200
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2201
	memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2202
	memcpy(hw->mac_addr, addr->sa_data, netdev->addr_len);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2203
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2204
	e1000_rar_set(hw, hw->mac_addr, 0);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2205
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2206
	if (hw->mac_type == e1000_82542_rev2_0)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2207
		e1000_leave_82542_rst(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2208
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2209
	return 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2210
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2211
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2212
/**
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2213
 * e1000_set_rx_mode - Secondary Unicast, Multicast and Promiscuous mode set
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2214
 * @netdev: network interface device structure
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2215
 *
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2216
 * The set_rx_mode entry point is called whenever the unicast or multicast
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2217
 * address lists or the network interface flags are updated. This routine is
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2218
 * responsible for configuring the hardware for proper unicast, multicast,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2219
 * promiscuous mode, and all-multi behavior.
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2220
 **/
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2221
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2222
static void e1000_set_rx_mode(struct net_device *netdev)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2223
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2224
	struct e1000_adapter *adapter = netdev_priv(netdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2225
	struct e1000_hw *hw = &adapter->hw;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2226
	struct netdev_hw_addr *ha;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2227
	bool use_uc = false;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2228
	u32 rctl;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2229
	u32 hash_value;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2230
	int i, rar_entries = E1000_RAR_ENTRIES;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2231
	int mta_reg_count = E1000_NUM_MTA_REGISTERS;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2232
	u32 *mcarray = kcalloc(mta_reg_count, sizeof(u32), GFP_ATOMIC);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2233
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2234
	if (!mcarray) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2235
		e_err(probe, "memory allocation failed\n");
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2236
		return;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2237
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2238
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2239
	/* Check for Promiscuous and All Multicast modes */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2240
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2241
	rctl = er32(RCTL);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2242
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2243
	if (netdev->flags & IFF_PROMISC) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2244
		rctl |= (E1000_RCTL_UPE | E1000_RCTL_MPE);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2245
		rctl &= ~E1000_RCTL_VFE;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2246
	} else {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2247
		if (netdev->flags & IFF_ALLMULTI)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2248
			rctl |= E1000_RCTL_MPE;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2249
		else
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2250
			rctl &= ~E1000_RCTL_MPE;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2251
		/* Enable VLAN filter if there is a VLAN */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2252
		if (adapter->vlgrp)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2253
			rctl |= E1000_RCTL_VFE;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2254
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2255
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2256
	if (netdev_uc_count(netdev) > rar_entries - 1) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2257
		rctl |= E1000_RCTL_UPE;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2258
	} else if (!(netdev->flags & IFF_PROMISC)) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2259
		rctl &= ~E1000_RCTL_UPE;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2260
		use_uc = true;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2261
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2262
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2263
	ew32(RCTL, rctl);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2264
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2265
	/* 82542 2.0 needs to be in reset to write receive address registers */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2266
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2267
	if (hw->mac_type == e1000_82542_rev2_0)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2268
		e1000_enter_82542_rst(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2269
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2270
	/* load the first 14 addresses into the exact filters 1-14. Unicast
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2271
	 * addresses take precedence to avoid disabling unicast filtering
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2272
	 * when possible.
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2273
	 *
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2274
	 * RAR 0 is used for the station MAC adddress
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2275
	 * if there are not 14 addresses, go ahead and clear the filters
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2276
	 */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2277
	i = 1;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2278
	if (use_uc)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2279
		netdev_for_each_uc_addr(ha, netdev) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2280
			if (i == rar_entries)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2281
				break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2282
			e1000_rar_set(hw, ha->addr, i++);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2283
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2284
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2285
	netdev_for_each_mc_addr(ha, netdev) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2286
		if (i == rar_entries) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2287
			/* load any remaining addresses into the hash table */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2288
			u32 hash_reg, hash_bit, mta;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2289
			hash_value = e1000_hash_mc_addr(hw, ha->addr);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2290
			hash_reg = (hash_value >> 5) & 0x7F;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2291
			hash_bit = hash_value & 0x1F;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2292
			mta = (1 << hash_bit);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2293
			mcarray[hash_reg] |= mta;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2294
		} else {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2295
			e1000_rar_set(hw, ha->addr, i++);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2296
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2297
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2298
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2299
	for (; i < rar_entries; i++) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2300
		E1000_WRITE_REG_ARRAY(hw, RA, i << 1, 0);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2301
		E1000_WRITE_FLUSH();
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2302
		E1000_WRITE_REG_ARRAY(hw, RA, (i << 1) + 1, 0);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2303
		E1000_WRITE_FLUSH();
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2304
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2305
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2306
	/* write the hash table completely, write from bottom to avoid
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2307
	 * both stupid write combining chipsets, and flushing each write */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2308
	for (i = mta_reg_count - 1; i >= 0 ; i--) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2309
		/*
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2310
		 * If we are on an 82544 has an errata where writing odd
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2311
		 * offsets overwrites the previous even offset, but writing
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2312
		 * backwards over the range solves the issue by always
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2313
		 * writing the odd offset first
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2314
		 */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2315
		E1000_WRITE_REG_ARRAY(hw, MTA, i, mcarray[i]);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2316
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2317
	E1000_WRITE_FLUSH();
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2318
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2319
	if (hw->mac_type == e1000_82542_rev2_0)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2320
		e1000_leave_82542_rst(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2321
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2322
	kfree(mcarray);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2323
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2324
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2325
/* Need to wait a few seconds after link up to get diagnostic information from
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2326
 * the phy */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2327
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2328
static void e1000_update_phy_info(unsigned long data)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2329
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2330
	struct e1000_adapter *adapter = (struct e1000_adapter *)data;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2331
	schedule_work(&adapter->phy_info_task);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2332
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2333
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2334
static void e1000_update_phy_info_task(struct work_struct *work)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2335
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2336
	struct e1000_adapter *adapter = container_of(work,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2337
	                                             struct e1000_adapter,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2338
	                                             phy_info_task);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2339
	struct e1000_hw *hw = &adapter->hw;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2340
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2341
	rtnl_lock();
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2342
	e1000_phy_get_info(hw, &adapter->phy_info);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2343
	rtnl_unlock();
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2344
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2345
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2346
/**
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2347
 * e1000_82547_tx_fifo_stall - Timer Call-back
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2348
 * @data: pointer to adapter cast into an unsigned long
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2349
 **/
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2350
static void e1000_82547_tx_fifo_stall(unsigned long data)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2351
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2352
	struct e1000_adapter *adapter = (struct e1000_adapter *)data;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2353
	schedule_work(&adapter->fifo_stall_task);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2354
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2355
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2356
/**
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2357
 * e1000_82547_tx_fifo_stall_task - task to complete work
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2358
 * @work: work struct contained inside adapter struct
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2359
 **/
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2360
static void e1000_82547_tx_fifo_stall_task(struct work_struct *work)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2361
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2362
	struct e1000_adapter *adapter = container_of(work,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2363
	                                             struct e1000_adapter,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2364
	                                             fifo_stall_task);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2365
	struct e1000_hw *hw = &adapter->hw;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2366
	struct net_device *netdev = adapter->netdev;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2367
	u32 tctl;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2368
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2369
	rtnl_lock();
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2370
	if (atomic_read(&adapter->tx_fifo_stall)) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2371
		if ((er32(TDT) == er32(TDH)) &&
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2372
		   (er32(TDFT) == er32(TDFH)) &&
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2373
		   (er32(TDFTS) == er32(TDFHS))) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2374
			tctl = er32(TCTL);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2375
			ew32(TCTL, tctl & ~E1000_TCTL_EN);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2376
			ew32(TDFT, adapter->tx_head_addr);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2377
			ew32(TDFH, adapter->tx_head_addr);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2378
			ew32(TDFTS, adapter->tx_head_addr);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2379
			ew32(TDFHS, adapter->tx_head_addr);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2380
			ew32(TCTL, tctl);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2381
			E1000_WRITE_FLUSH();
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2382
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2383
			adapter->tx_fifo_head = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2384
			atomic_set(&adapter->tx_fifo_stall, 0);
2289
1c75f52e5c0f Minor: Indentation and braces.
Florian Pose <fp@igh-essen.com>
parents: 2233
diff changeset
  2385
			if (!adapter->ecdev) {
1c75f52e5c0f Minor: Indentation and braces.
Florian Pose <fp@igh-essen.com>
parents: 2233
diff changeset
  2386
				netif_wake_queue(netdev);
1c75f52e5c0f Minor: Indentation and braces.
Florian Pose <fp@igh-essen.com>
parents: 2233
diff changeset
  2387
			}
2202
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2388
		} else if (!test_bit(__E1000_DOWN, &adapter->flags)) {
2289
1c75f52e5c0f Minor: Indentation and braces.
Florian Pose <fp@igh-essen.com>
parents: 2233
diff changeset
  2389
			if (!adapter->ecdev) {
2202
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2390
				mod_timer(&adapter->tx_fifo_stall_timer, jiffies + 1);
2289
1c75f52e5c0f Minor: Indentation and braces.
Florian Pose <fp@igh-essen.com>
parents: 2233
diff changeset
  2391
			}
2202
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2392
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2393
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2394
	rtnl_unlock();
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2395
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2396
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2397
bool e1000_has_link(struct e1000_adapter *adapter)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2398
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2399
	struct e1000_hw *hw = &adapter->hw;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2400
	bool link_active = false;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2401
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2402
	/* get_link_status is set on LSC (link status) interrupt or
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2403
	 * rx sequence error interrupt.  get_link_status will stay
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2404
	 * false until the e1000_check_for_link establishes link
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2405
	 * for copper adapters ONLY
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2406
	 */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2407
	switch (hw->media_type) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2408
	case e1000_media_type_copper:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2409
		if (hw->get_link_status) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2410
			e1000_check_for_link(hw);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2411
			link_active = !hw->get_link_status;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2412
		} else {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2413
			link_active = true;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2414
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2415
		break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2416
	case e1000_media_type_fiber:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2417
		e1000_check_for_link(hw);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2418
		link_active = !!(er32(STATUS) & E1000_STATUS_LU);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2419
		break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2420
	case e1000_media_type_internal_serdes:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2421
		e1000_check_for_link(hw);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2422
		link_active = hw->serdes_has_link;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2423
		break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2424
	default:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2425
		break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2426
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2427
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2428
	return link_active;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2429
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2430
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2431
/**
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2432
 * e1000_watchdog - Timer Call-back
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2433
 * @data: pointer to adapter cast into an unsigned long
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2434
 **/
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2435
static void e1000_watchdog(unsigned long data)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2436
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2437
	struct e1000_adapter *adapter = (struct e1000_adapter *)data;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2438
	struct e1000_hw *hw = &adapter->hw;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2439
	struct net_device *netdev = adapter->netdev;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2440
	struct e1000_tx_ring *txdr = adapter->tx_ring;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2441
	u32 link, tctl;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2442
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2443
	link = e1000_has_link(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2444
	if (!adapter->ecdev && (netif_carrier_ok(netdev)) && link)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2445
		goto link_up;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2446
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2447
	if (link) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2448
		if ((adapter->ecdev && !ecdev_get_link(adapter->ecdev))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2449
				|| (!adapter->ecdev && !netif_carrier_ok(netdev))) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2450
			u32 ctrl;
2233
33accbe40987 Avoided unused variable warnings.
Florian Pose <fp@igh-essen.com>
parents: 2214
diff changeset
  2451
			bool txb2b __attribute__ ((unused)) = true;
2202
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2452
			/* update snapshot of PHY registers on LSC */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2453
			e1000_get_speed_and_duplex(hw,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2454
			                           &adapter->link_speed,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2455
			                           &adapter->link_duplex);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2456
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2457
			ctrl = er32(CTRL);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2458
			pr_info("%s NIC Link is Up %d Mbps %s, "
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2459
				"Flow Control: %s\n",
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2460
				netdev->name,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2461
				adapter->link_speed,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2462
				adapter->link_duplex == FULL_DUPLEX ?
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2463
				"Full Duplex" : "Half Duplex",
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2464
				((ctrl & E1000_CTRL_TFCE) && (ctrl &
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2465
				E1000_CTRL_RFCE)) ? "RX/TX" : ((ctrl &
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2466
				E1000_CTRL_RFCE) ? "RX" : ((ctrl &
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2467
				E1000_CTRL_TFCE) ? "TX" : "None")));
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2468
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2469
			/* adjust timeout factor according to speed/duplex */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2470
			adapter->tx_timeout_factor = 1;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2471
			switch (adapter->link_speed) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2472
			case SPEED_10:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2473
				txb2b = false;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2474
				adapter->tx_timeout_factor = 16;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2475
				break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2476
			case SPEED_100:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2477
				txb2b = false;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2478
				/* maybe add some timeout factor ? */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2479
				break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2480
			}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2481
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2482
			/* enable transmits in the hardware */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2483
			tctl = er32(TCTL);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2484
			tctl |= E1000_TCTL_EN;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2485
			ew32(TCTL, tctl);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2486
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2487
			if (adapter->ecdev) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2488
				ecdev_set_link(adapter->ecdev, 1);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2489
			} else {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2490
				netif_carrier_on(netdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2491
				if (!test_bit(__E1000_DOWN, &adapter->flags))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2492
					mod_timer(&adapter->phy_info_timer,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2493
							round_jiffies(jiffies + 2 * HZ));
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2494
			}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2495
			adapter->smartspeed = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2496
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2497
	} else {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2498
		if ((adapter->ecdev && ecdev_get_link(adapter->ecdev))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2499
				|| (!adapter->ecdev && netif_carrier_ok(netdev))) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2500
			adapter->link_speed = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2501
			adapter->link_duplex = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2502
			pr_info("%s NIC Link is Down\n",
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2503
				netdev->name);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2504
			if (adapter->ecdev) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2505
				ecdev_set_link(adapter->ecdev, 0);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2506
			} else {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2507
				netif_carrier_off(netdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2508
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2509
				if (!test_bit(__E1000_DOWN, &adapter->flags))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2510
					mod_timer(&adapter->phy_info_timer,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2511
							round_jiffies(jiffies + 2 * HZ));
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2512
			}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2513
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2514
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2515
		e1000_smartspeed(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2516
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2517
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2518
link_up:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2519
	e1000_update_stats(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2520
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2521
	hw->tx_packet_delta = adapter->stats.tpt - adapter->tpt_old;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2522
	adapter->tpt_old = adapter->stats.tpt;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2523
	hw->collision_delta = adapter->stats.colc - adapter->colc_old;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2524
	adapter->colc_old = adapter->stats.colc;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2525
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2526
	adapter->gorcl = adapter->stats.gorcl - adapter->gorcl_old;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2527
	adapter->gorcl_old = adapter->stats.gorcl;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2528
	adapter->gotcl = adapter->stats.gotcl - adapter->gotcl_old;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2529
	adapter->gotcl_old = adapter->stats.gotcl;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2530
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2531
	e1000_update_adaptive(hw);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2532
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2533
	if (!adapter->ecdev && !netif_carrier_ok(netdev)) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2534
		if (E1000_DESC_UNUSED(txdr) + 1 < txdr->count) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2535
			/* We've lost link, so the controller stops DMA,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2536
			 * but we've got queued Tx work that's never going
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2537
			 * to get done, so reset controller to flush Tx.
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2538
			 * (Do the reset outside of interrupt context). */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2539
			adapter->tx_timeout_count++;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2540
			schedule_work(&adapter->reset_task);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2541
			/* return immediately since reset is imminent */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2542
			return;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2543
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2544
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2545
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2546
	/* Simple mode for Interrupt Throttle Rate (ITR) */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2547
	if (hw->mac_type >= e1000_82540 && adapter->itr_setting == 4) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2548
		/*
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2549
		 * Symmetric Tx/Rx gets a reduced ITR=2000;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2550
		 * Total asymmetrical Tx or Rx gets ITR=8000;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2551
		 * everyone else is between 2000-8000.
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2552
		 */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2553
		u32 goc = (adapter->gotcl + adapter->gorcl) / 10000;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2554
		u32 dif = (adapter->gotcl > adapter->gorcl ?
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2555
			    adapter->gotcl - adapter->gorcl :
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2556
			    adapter->gorcl - adapter->gotcl) / 10000;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2557
		u32 itr = goc > 0 ? (dif * 6000 / goc + 2000) : 8000;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2558
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2559
		ew32(ITR, 1000000000 / (itr * 256));
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2560
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2561
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2562
	/* Cause software interrupt to ensure rx ring is cleaned */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2563
	ew32(ICS, E1000_ICS_RXDMT0);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2564
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2565
	/* Force detection of hung controller every watchdog period */
2289
1c75f52e5c0f Minor: Indentation and braces.
Florian Pose <fp@igh-essen.com>
parents: 2233
diff changeset
  2566
	if (!adapter->ecdev) {
1c75f52e5c0f Minor: Indentation and braces.
Florian Pose <fp@igh-essen.com>
parents: 2233
diff changeset
  2567
		adapter->detect_tx_hung = true;
1c75f52e5c0f Minor: Indentation and braces.
Florian Pose <fp@igh-essen.com>
parents: 2233
diff changeset
  2568
	}
2202
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2569
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2570
	/* Reset the timer */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2571
	if (!adapter->ecdev) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2572
		if (!test_bit(__E1000_DOWN, &adapter->flags))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2573
			mod_timer(&adapter->watchdog_timer,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2574
			          round_jiffies(jiffies + 2 * HZ));
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2575
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2576
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2577
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2578
enum latency_range {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2579
	lowest_latency = 0,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2580
	low_latency = 1,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2581
	bulk_latency = 2,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2582
	latency_invalid = 255
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2583
};
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2584
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2585
/**
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2586
 * e1000_update_itr - update the dynamic ITR value based on statistics
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2587
 * @adapter: pointer to adapter
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2588
 * @itr_setting: current adapter->itr
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2589
 * @packets: the number of packets during this measurement interval
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2590
 * @bytes: the number of bytes during this measurement interval
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2591
 *
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2592
 *      Stores a new ITR value based on packets and byte
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2593
 *      counts during the last interrupt.  The advantage of per interrupt
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2594
 *      computation is faster updates and more accurate ITR for the current
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2595
 *      traffic pattern.  Constants in this function were computed
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2596
 *      based on theoretical maximum wire speed and thresholds were set based
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2597
 *      on testing data as well as attempting to minimize response time
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2598
 *      while increasing bulk throughput.
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2599
 *      this functionality is controlled by the InterruptThrottleRate module
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2600
 *      parameter (see e1000_param.c)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2601
 **/
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2602
static unsigned int e1000_update_itr(struct e1000_adapter *adapter,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2603
				     u16 itr_setting, int packets, int bytes)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2604
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2605
	unsigned int retval = itr_setting;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2606
	struct e1000_hw *hw = &adapter->hw;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2607
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2608
	if (unlikely(hw->mac_type < e1000_82540))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2609
		goto update_itr_done;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2610
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2611
	if (packets == 0)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2612
		goto update_itr_done;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2613
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2614
	switch (itr_setting) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2615
	case lowest_latency:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2616
		/* jumbo frames get bulk treatment*/
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2617
		if (bytes/packets > 8000)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2618
			retval = bulk_latency;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2619
		else if ((packets < 5) && (bytes > 512))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2620
			retval = low_latency;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2621
		break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2622
	case low_latency:  /* 50 usec aka 20000 ints/s */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2623
		if (bytes > 10000) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2624
			/* jumbo frames need bulk latency setting */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2625
			if (bytes/packets > 8000)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2626
				retval = bulk_latency;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2627
			else if ((packets < 10) || ((bytes/packets) > 1200))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2628
				retval = bulk_latency;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2629
			else if ((packets > 35))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2630
				retval = lowest_latency;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2631
		} else if (bytes/packets > 2000)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2632
			retval = bulk_latency;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2633
		else if (packets <= 2 && bytes < 512)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2634
			retval = lowest_latency;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2635
		break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2636
	case bulk_latency: /* 250 usec aka 4000 ints/s */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2637
		if (bytes > 25000) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2638
			if (packets > 35)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2639
				retval = low_latency;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2640
		} else if (bytes < 6000) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2641
			retval = low_latency;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2642
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2643
		break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2644
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2645
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2646
update_itr_done:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2647
	return retval;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2648
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2649
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2650
static void e1000_set_itr(struct e1000_adapter *adapter)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2651
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2652
	struct e1000_hw *hw = &adapter->hw;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2653
	u16 current_itr;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2654
	u32 new_itr = adapter->itr;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2655
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2656
	if (unlikely(hw->mac_type < e1000_82540))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2657
		return;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2658
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2659
	/* for non-gigabit speeds, just fix the interrupt rate at 4000 */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2660
	if (unlikely(adapter->link_speed != SPEED_1000)) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2661
		current_itr = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2662
		new_itr = 4000;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2663
		goto set_itr_now;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2664
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2665
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2666
	adapter->tx_itr = e1000_update_itr(adapter,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2667
	                            adapter->tx_itr,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2668
	                            adapter->total_tx_packets,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2669
	                            adapter->total_tx_bytes);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2670
	/* conservative mode (itr 3) eliminates the lowest_latency setting */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2671
	if (adapter->itr_setting == 3 && adapter->tx_itr == lowest_latency)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2672
		adapter->tx_itr = low_latency;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2673
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2674
	adapter->rx_itr = e1000_update_itr(adapter,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2675
	                            adapter->rx_itr,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2676
	                            adapter->total_rx_packets,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2677
	                            adapter->total_rx_bytes);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2678
	/* conservative mode (itr 3) eliminates the lowest_latency setting */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2679
	if (adapter->itr_setting == 3 && adapter->rx_itr == lowest_latency)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2680
		adapter->rx_itr = low_latency;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2681
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2682
	current_itr = max(adapter->rx_itr, adapter->tx_itr);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2683
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2684
	switch (current_itr) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2685
	/* counts and packets in update_itr are dependent on these numbers */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2686
	case lowest_latency:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2687
		new_itr = 70000;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2688
		break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2689
	case low_latency:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2690
		new_itr = 20000; /* aka hwitr = ~200 */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2691
		break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2692
	case bulk_latency:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2693
		new_itr = 4000;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2694
		break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2695
	default:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2696
		break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2697
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2698
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2699
set_itr_now:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2700
	if (new_itr != adapter->itr) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2701
		/* this attempts to bias the interrupt rate towards Bulk
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2702
		 * by adding intermediate steps when interrupt rate is
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2703
		 * increasing */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2704
		new_itr = new_itr > adapter->itr ?
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2705
		             min(adapter->itr + (new_itr >> 2), new_itr) :
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2706
		             new_itr;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2707
		adapter->itr = new_itr;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2708
		ew32(ITR, 1000000000 / (new_itr * 256));
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2709
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2710
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2711
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2712
#define E1000_TX_FLAGS_CSUM		0x00000001
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2713
#define E1000_TX_FLAGS_VLAN		0x00000002
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2714
#define E1000_TX_FLAGS_TSO		0x00000004
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2715
#define E1000_TX_FLAGS_IPV4		0x00000008
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2716
#define E1000_TX_FLAGS_VLAN_MASK	0xffff0000
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2717
#define E1000_TX_FLAGS_VLAN_SHIFT	16
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2718
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2719
static int e1000_tso(struct e1000_adapter *adapter,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2720
		     struct e1000_tx_ring *tx_ring, struct sk_buff *skb)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2721
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2722
	struct e1000_context_desc *context_desc;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2723
	struct e1000_buffer *buffer_info;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2724
	unsigned int i;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2725
	u32 cmd_length = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2726
	u16 ipcse = 0, tucse, mss;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2727
	u8 ipcss, ipcso, tucss, tucso, hdr_len;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2728
	int err;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2729
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2730
	if (skb_is_gso(skb)) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2731
		if (skb_header_cloned(skb)) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2732
			err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2733
			if (err)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2734
				return err;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2735
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2736
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2737
		hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2738
		mss = skb_shinfo(skb)->gso_size;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2739
		if (skb->protocol == htons(ETH_P_IP)) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2740
			struct iphdr *iph = ip_hdr(skb);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2741
			iph->tot_len = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2742
			iph->check = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2743
			tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2744
								 iph->daddr, 0,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2745
								 IPPROTO_TCP,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2746
								 0);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2747
			cmd_length = E1000_TXD_CMD_IP;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2748
			ipcse = skb_transport_offset(skb) - 1;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2749
		} else if (skb->protocol == htons(ETH_P_IPV6)) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2750
			ipv6_hdr(skb)->payload_len = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2751
			tcp_hdr(skb)->check =
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2752
				~csum_ipv6_magic(&ipv6_hdr(skb)->saddr,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2753
						 &ipv6_hdr(skb)->daddr,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2754
						 0, IPPROTO_TCP, 0);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2755
			ipcse = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2756
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2757
		ipcss = skb_network_offset(skb);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2758
		ipcso = (void *)&(ip_hdr(skb)->check) - (void *)skb->data;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2759
		tucss = skb_transport_offset(skb);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2760
		tucso = (void *)&(tcp_hdr(skb)->check) - (void *)skb->data;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2761
		tucse = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2762
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2763
		cmd_length |= (E1000_TXD_CMD_DEXT | E1000_TXD_CMD_TSE |
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2764
			       E1000_TXD_CMD_TCP | (skb->len - (hdr_len)));
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2765
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2766
		i = tx_ring->next_to_use;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2767
		context_desc = E1000_CONTEXT_DESC(*tx_ring, i);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2768
		buffer_info = &tx_ring->buffer_info[i];
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2769
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2770
		context_desc->lower_setup.ip_fields.ipcss  = ipcss;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2771
		context_desc->lower_setup.ip_fields.ipcso  = ipcso;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2772
		context_desc->lower_setup.ip_fields.ipcse  = cpu_to_le16(ipcse);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2773
		context_desc->upper_setup.tcp_fields.tucss = tucss;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2774
		context_desc->upper_setup.tcp_fields.tucso = tucso;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2775
		context_desc->upper_setup.tcp_fields.tucse = cpu_to_le16(tucse);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2776
		context_desc->tcp_seg_setup.fields.mss     = cpu_to_le16(mss);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2777
		context_desc->tcp_seg_setup.fields.hdr_len = hdr_len;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2778
		context_desc->cmd_and_length = cpu_to_le32(cmd_length);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2779
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2780
		buffer_info->time_stamp = jiffies;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2781
		buffer_info->next_to_watch = i;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2782
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2783
		if (++i == tx_ring->count) i = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2784
		tx_ring->next_to_use = i;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2785
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2786
		return true;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2787
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2788
	return false;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2789
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2790
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2791
static bool e1000_tx_csum(struct e1000_adapter *adapter,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2792
			  struct e1000_tx_ring *tx_ring, struct sk_buff *skb)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2793
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2794
	struct e1000_context_desc *context_desc;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2795
	struct e1000_buffer *buffer_info;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2796
	unsigned int i;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2797
	u8 css;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2798
	u32 cmd_len = E1000_TXD_CMD_DEXT;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2799
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2800
	if (skb->ip_summed != CHECKSUM_PARTIAL)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2801
		return false;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2802
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2803
	switch (skb->protocol) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2804
	case cpu_to_be16(ETH_P_IP):
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2805
		if (ip_hdr(skb)->protocol == IPPROTO_TCP)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2806
			cmd_len |= E1000_TXD_CMD_TCP;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2807
		break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2808
	case cpu_to_be16(ETH_P_IPV6):
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2809
		/* XXX not handling all IPV6 headers */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2810
		if (ipv6_hdr(skb)->nexthdr == IPPROTO_TCP)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2811
			cmd_len |= E1000_TXD_CMD_TCP;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2812
		break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2813
	default:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2814
		if (unlikely(net_ratelimit()))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2815
			e_warn(drv, "checksum_partial proto=%x!\n",
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2816
			       skb->protocol);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2817
		break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2818
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2819
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2820
	css = skb_transport_offset(skb);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2821
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2822
	i = tx_ring->next_to_use;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2823
	buffer_info = &tx_ring->buffer_info[i];
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2824
	context_desc = E1000_CONTEXT_DESC(*tx_ring, i);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2825
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2826
	context_desc->lower_setup.ip_config = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2827
	context_desc->upper_setup.tcp_fields.tucss = css;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2828
	context_desc->upper_setup.tcp_fields.tucso =
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2829
		css + skb->csum_offset;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2830
	context_desc->upper_setup.tcp_fields.tucse = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2831
	context_desc->tcp_seg_setup.data = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2832
	context_desc->cmd_and_length = cpu_to_le32(cmd_len);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2833
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2834
	buffer_info->time_stamp = jiffies;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2835
	buffer_info->next_to_watch = i;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2836
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2837
	if (unlikely(++i == tx_ring->count)) i = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2838
	tx_ring->next_to_use = i;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2839
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2840
	return true;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2841
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2842
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2843
#define E1000_MAX_TXD_PWR	12
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2844
#define E1000_MAX_DATA_PER_TXD	(1<<E1000_MAX_TXD_PWR)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2845
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2846
static int e1000_tx_map(struct e1000_adapter *adapter,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2847
			struct e1000_tx_ring *tx_ring,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2848
			struct sk_buff *skb, unsigned int first,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2849
			unsigned int max_per_txd, unsigned int nr_frags,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2850
			unsigned int mss)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2851
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2852
	struct e1000_hw *hw = &adapter->hw;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2853
	struct pci_dev *pdev = adapter->pdev;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2854
	struct e1000_buffer *buffer_info;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2855
	unsigned int len = skb_headlen(skb);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2856
	unsigned int offset = 0, size, count = 0, i;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2857
	unsigned int f;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2858
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2859
	i = tx_ring->next_to_use;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2860
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2861
	while (len) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2862
		buffer_info = &tx_ring->buffer_info[i];
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2863
		size = min(len, max_per_txd);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2864
		/* Workaround for Controller erratum --
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2865
		 * descriptor for non-tso packet in a linear SKB that follows a
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2866
		 * tso gets written back prematurely before the data is fully
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2867
		 * DMA'd to the controller */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2868
		if (!skb->data_len && tx_ring->last_tx_tso &&
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2869
		    !skb_is_gso(skb)) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2870
			tx_ring->last_tx_tso = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2871
			size -= 4;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2872
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2873
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2874
		/* Workaround for premature desc write-backs
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2875
		 * in TSO mode.  Append 4-byte sentinel desc */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2876
		if (unlikely(mss && !nr_frags && size == len && size > 8))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2877
			size -= 4;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2878
		/* work-around for errata 10 and it applies
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2879
		 * to all controllers in PCI-X mode
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2880
		 * The fix is to make sure that the first descriptor of a
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2881
		 * packet is smaller than 2048 - 16 - 16 (or 2016) bytes
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2882
		 */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2883
		if (unlikely((hw->bus_type == e1000_bus_type_pcix) &&
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2884
		                (size > 2015) && count == 0))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2885
		        size = 2015;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2886
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2887
		/* Workaround for potential 82544 hang in PCI-X.  Avoid
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2888
		 * terminating buffers within evenly-aligned dwords. */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2889
		if (unlikely(adapter->pcix_82544 &&
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2890
		   !((unsigned long)(skb->data + offset + size - 1) & 4) &&
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2891
		   size > 4))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2892
			size -= 4;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2893
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2894
		buffer_info->length = size;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2895
		/* set time_stamp *before* dma to help avoid a possible race */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2896
		buffer_info->time_stamp = jiffies;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2897
		buffer_info->mapped_as_page = false;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2898
		buffer_info->dma = dma_map_single(&pdev->dev,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2899
						  skb->data + offset,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2900
						  size,	DMA_TO_DEVICE);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2901
		if (dma_mapping_error(&pdev->dev, buffer_info->dma))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2902
			goto dma_error;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2903
		buffer_info->next_to_watch = i;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2904
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2905
		len -= size;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2906
		offset += size;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2907
		count++;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2908
		if (len) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2909
			i++;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2910
			if (unlikely(i == tx_ring->count))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2911
				i = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2912
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2913
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2914
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2915
	for (f = 0; f < nr_frags; f++) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2916
		struct skb_frag_struct *frag;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2917
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2918
		frag = &skb_shinfo(skb)->frags[f];
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2919
		len = frag->size;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2920
		offset = frag->page_offset;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2921
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2922
		while (len) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2923
			i++;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2924
			if (unlikely(i == tx_ring->count))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2925
				i = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2926
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2927
			buffer_info = &tx_ring->buffer_info[i];
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2928
			size = min(len, max_per_txd);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2929
			/* Workaround for premature desc write-backs
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2930
			 * in TSO mode.  Append 4-byte sentinel desc */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2931
			if (unlikely(mss && f == (nr_frags-1) && size == len && size > 8))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2932
				size -= 4;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2933
			/* Workaround for potential 82544 hang in PCI-X.
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2934
			 * Avoid terminating buffers within evenly-aligned
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2935
			 * dwords. */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2936
			if (unlikely(adapter->pcix_82544 &&
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2937
			    !((unsigned long)(page_to_phys(frag->page) + offset
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2938
			                      + size - 1) & 4) &&
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2939
			    size > 4))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2940
				size -= 4;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2941
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2942
			buffer_info->length = size;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2943
			buffer_info->time_stamp = jiffies;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2944
			buffer_info->mapped_as_page = true;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2945
			buffer_info->dma = dma_map_page(&pdev->dev, frag->page,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2946
							offset,	size,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2947
							DMA_TO_DEVICE);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2948
			if (dma_mapping_error(&pdev->dev, buffer_info->dma))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2949
				goto dma_error;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2950
			buffer_info->next_to_watch = i;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2951
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2952
			len -= size;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2953
			offset += size;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2954
			count++;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2955
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2956
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2957
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2958
	tx_ring->buffer_info[i].skb = skb;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2959
	tx_ring->buffer_info[first].next_to_watch = i;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2960
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2961
	return count;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2962
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2963
dma_error:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2964
	dev_err(&pdev->dev, "TX DMA map failed\n");
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2965
	buffer_info->dma = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2966
	if (count)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2967
		count--;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2968
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2969
	while (count--) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2970
		if (i==0)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2971
			i += tx_ring->count;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2972
		i--;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2973
		buffer_info = &tx_ring->buffer_info[i];
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2974
		e1000_unmap_and_free_tx_resource(adapter, buffer_info);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2975
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2976
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2977
	return 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2978
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2979
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2980
static void e1000_tx_queue(struct e1000_adapter *adapter,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2981
			   struct e1000_tx_ring *tx_ring, int tx_flags,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2982
			   int count)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2983
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2984
	struct e1000_hw *hw = &adapter->hw;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2985
	struct e1000_tx_desc *tx_desc = NULL;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2986
	struct e1000_buffer *buffer_info;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2987
	u32 txd_upper = 0, txd_lower = E1000_TXD_CMD_IFCS;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2988
	unsigned int i;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2989
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2990
	if (likely(tx_flags & E1000_TX_FLAGS_TSO)) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2991
		txd_lower |= E1000_TXD_CMD_DEXT | E1000_TXD_DTYP_D |
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2992
		             E1000_TXD_CMD_TSE;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2993
		txd_upper |= E1000_TXD_POPTS_TXSM << 8;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2994
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2995
		if (likely(tx_flags & E1000_TX_FLAGS_IPV4))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2996
			txd_upper |= E1000_TXD_POPTS_IXSM << 8;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2997
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2998
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2999
	if (likely(tx_flags & E1000_TX_FLAGS_CSUM)) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3000
		txd_lower |= E1000_TXD_CMD_DEXT | E1000_TXD_DTYP_D;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3001
		txd_upper |= E1000_TXD_POPTS_TXSM << 8;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3002
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3003
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3004
	if (unlikely(tx_flags & E1000_TX_FLAGS_VLAN)) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3005
		txd_lower |= E1000_TXD_CMD_VLE;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3006
		txd_upper |= (tx_flags & E1000_TX_FLAGS_VLAN_MASK);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3007
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3008
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3009
	i = tx_ring->next_to_use;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3010
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3011
	while (count--) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3012
		buffer_info = &tx_ring->buffer_info[i];
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3013
		tx_desc = E1000_TX_DESC(*tx_ring, i);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3014
		tx_desc->buffer_addr = cpu_to_le64(buffer_info->dma);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3015
		tx_desc->lower.data =
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3016
			cpu_to_le32(txd_lower | buffer_info->length);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3017
		tx_desc->upper.data = cpu_to_le32(txd_upper);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3018
		if (unlikely(++i == tx_ring->count)) i = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3019
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3020
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3021
	tx_desc->lower.data |= cpu_to_le32(adapter->txd_cmd);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3022
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3023
	/* Force memory writes to complete before letting h/w
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3024
	 * know there are new descriptors to fetch.  (Only
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3025
	 * applicable for weak-ordered memory model archs,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3026
	 * such as IA-64). */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3027
	wmb();
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3028
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3029
	tx_ring->next_to_use = i;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3030
	writel(i, hw->hw_addr + tx_ring->tdt);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3031
	/* we need this if more than one processor can write to our tail
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3032
	 * at a time, it syncronizes IO on IA64/Altix systems */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3033
	mmiowb();
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3034
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3035
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3036
/**
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3037
 * 82547 workaround to avoid controller hang in half-duplex environment.
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3038
 * The workaround is to avoid queuing a large packet that would span
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3039
 * the internal Tx FIFO ring boundary by notifying the stack to resend
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3040
 * the packet at a later time.  This gives the Tx FIFO an opportunity to
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3041
 * flush all packets.  When that occurs, we reset the Tx FIFO pointers
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3042
 * to the beginning of the Tx FIFO.
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3043
 **/
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3044
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3045
#define E1000_FIFO_HDR			0x10
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3046
#define E1000_82547_PAD_LEN		0x3E0
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3047
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3048
static int e1000_82547_fifo_workaround(struct e1000_adapter *adapter,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3049
				       struct sk_buff *skb)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3050
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3051
	u32 fifo_space = adapter->tx_fifo_size - adapter->tx_fifo_head;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3052
	u32 skb_fifo_len = skb->len + E1000_FIFO_HDR;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3053
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3054
	skb_fifo_len = ALIGN(skb_fifo_len, E1000_FIFO_HDR);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3055
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3056
	if (adapter->link_duplex != HALF_DUPLEX)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3057
		goto no_fifo_stall_required;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3058
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3059
	if (atomic_read(&adapter->tx_fifo_stall))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3060
		return 1;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3061
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3062
	if (skb_fifo_len >= (E1000_82547_PAD_LEN + fifo_space)) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3063
		atomic_set(&adapter->tx_fifo_stall, 1);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3064
		return 1;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3065
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3066
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3067
no_fifo_stall_required:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3068
	adapter->tx_fifo_head += skb_fifo_len;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3069
	if (adapter->tx_fifo_head >= adapter->tx_fifo_size)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3070
		adapter->tx_fifo_head -= adapter->tx_fifo_size;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3071
	return 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3072
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3073
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3074
static int __e1000_maybe_stop_tx(struct net_device *netdev, int size)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3075
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3076
	struct e1000_adapter *adapter = netdev_priv(netdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3077
	struct e1000_tx_ring *tx_ring = adapter->tx_ring;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3078
2471
fc64a4b1ec1a Fixed __e1000_maybe_stop_tx().
Florian Pose <fp@igh-essen.com>
parents: 2469
diff changeset
  3079
	if (adapter->ecdev) {
fc64a4b1ec1a Fixed __e1000_maybe_stop_tx().
Florian Pose <fp@igh-essen.com>
parents: 2469
diff changeset
  3080
		return -EBUSY;
fc64a4b1ec1a Fixed __e1000_maybe_stop_tx().
Florian Pose <fp@igh-essen.com>
parents: 2469
diff changeset
  3081
	}
fc64a4b1ec1a Fixed __e1000_maybe_stop_tx().
Florian Pose <fp@igh-essen.com>
parents: 2469
diff changeset
  3082
2202
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3083
	netif_stop_queue(netdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3084
	/* Herbert's original patch had:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3085
	 *  smp_mb__after_netif_stop_queue();
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3086
	 * but since that doesn't exist yet, just open code it. */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3087
	smp_mb();
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3088
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3089
	/* We need to check again in a case another CPU has just
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3090
	 * made room available. */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3091
	if (likely(E1000_DESC_UNUSED(tx_ring) < size))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3092
		return -EBUSY;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3093
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3094
	/* A reprieve! */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3095
	netif_start_queue(netdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3096
	++adapter->restart_queue;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3097
	return 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3098
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3099
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3100
static int e1000_maybe_stop_tx(struct net_device *netdev,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3101
                               struct e1000_tx_ring *tx_ring, int size)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3102
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3103
	if (likely(E1000_DESC_UNUSED(tx_ring) >= size))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3104
		return 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3105
	return __e1000_maybe_stop_tx(netdev, size);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3106
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3107
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3108
#define TXD_USE_COUNT(S, X) (((S) >> (X)) + 1 )
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3109
static netdev_tx_t e1000_xmit_frame(struct sk_buff *skb,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3110
				    struct net_device *netdev)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3111
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3112
	struct e1000_adapter *adapter = netdev_priv(netdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3113
	struct e1000_hw *hw = &adapter->hw;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3114
	struct e1000_tx_ring *tx_ring;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3115
	unsigned int first, max_per_txd = E1000_MAX_DATA_PER_TXD;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3116
	unsigned int max_txd_pwr = E1000_MAX_TXD_PWR;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3117
	unsigned int tx_flags = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3118
	unsigned int len = skb_headlen(skb);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3119
	unsigned int nr_frags;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3120
	unsigned int mss;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3121
	int count = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3122
	int tso;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3123
	unsigned int f;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3124
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3125
	/* This goes back to the question of how to logically map a tx queue
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3126
	 * to a flow.  Right now, performance is impacted slightly negatively
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3127
	 * if using multiple tx queues.  If the stack breaks away from a
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3128
	 * single qdisc implementation, we can look at this again. */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3129
	tx_ring = adapter->tx_ring;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3130
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3131
	if (unlikely(skb->len <= 0)) {
2289
1c75f52e5c0f Minor: Indentation and braces.
Florian Pose <fp@igh-essen.com>
parents: 2233
diff changeset
  3132
		if (!adapter->ecdev) {
2202
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3133
			dev_kfree_skb_any(skb);
2289
1c75f52e5c0f Minor: Indentation and braces.
Florian Pose <fp@igh-essen.com>
parents: 2233
diff changeset
  3134
		}
2202
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3135
		return NETDEV_TX_OK;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3136
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3137
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3138
	mss = skb_shinfo(skb)->gso_size;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3139
	/* The controller does a simple calculation to
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3140
	 * make sure there is enough room in the FIFO before
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3141
	 * initiating the DMA for each buffer.  The calc is:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3142
	 * 4 = ceil(buffer len/mss).  To make sure we don't
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3143
	 * overrun the FIFO, adjust the max buffer len if mss
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3144
	 * drops. */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3145
	if (mss) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3146
		u8 hdr_len;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3147
		max_per_txd = min(mss << 2, max_per_txd);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3148
		max_txd_pwr = fls(max_per_txd) - 1;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3149
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3150
		hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3151
		if (skb->data_len && hdr_len == len) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3152
			switch (hw->mac_type) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3153
				unsigned int pull_size;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3154
			case e1000_82544:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3155
				/* Make sure we have room to chop off 4 bytes,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3156
				 * and that the end alignment will work out to
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3157
				 * this hardware's requirements
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3158
				 * NOTE: this is a TSO only workaround
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3159
				 * if end byte alignment not correct move us
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3160
				 * into the next dword */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3161
				if ((unsigned long)(skb_tail_pointer(skb) - 1) & 4)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3162
					break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3163
				/* fall through */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3164
				pull_size = min((unsigned int)4, skb->data_len);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3165
				if (!__pskb_pull_tail(skb, pull_size)) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3166
					e_err(drv, "__pskb_pull_tail "
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3167
					      "failed.\n");
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3168
					dev_kfree_skb_any(skb);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3169
					return NETDEV_TX_OK;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3170
				}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3171
				len = skb_headlen(skb);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3172
				break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3173
			default:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3174
				/* do nothing */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3175
				break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3176
			}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3177
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3178
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3179
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3180
	/* reserve a descriptor for the offload context */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3181
	if ((mss) || (skb->ip_summed == CHECKSUM_PARTIAL))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3182
		count++;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3183
	count++;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3184
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3185
	/* Controller Erratum workaround */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3186
	if (!skb->data_len && tx_ring->last_tx_tso && !skb_is_gso(skb))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3187
		count++;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3188
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3189
	count += TXD_USE_COUNT(len, max_txd_pwr);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3190
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3191
	if (adapter->pcix_82544)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3192
		count++;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3193
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3194
	/* work-around for errata 10 and it applies to all controllers
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3195
	 * in PCI-X mode, so add one more descriptor to the count
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3196
	 */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3197
	if (unlikely((hw->bus_type == e1000_bus_type_pcix) &&
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3198
			(len > 2015)))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3199
		count++;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3200
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3201
	nr_frags = skb_shinfo(skb)->nr_frags;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3202
	for (f = 0; f < nr_frags; f++)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3203
		count += TXD_USE_COUNT(skb_shinfo(skb)->frags[f].size,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3204
				       max_txd_pwr);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3205
	if (adapter->pcix_82544)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3206
		count += nr_frags;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3207
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3208
	/* need: count + 2 desc gap to keep tail from touching
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3209
	 * head, otherwise try next time */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3210
	if (unlikely(e1000_maybe_stop_tx(netdev, tx_ring, count + 2)))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3211
		return NETDEV_TX_BUSY;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3212
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3213
	if (unlikely(hw->mac_type == e1000_82547)) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3214
		if (unlikely(e1000_82547_fifo_workaround(adapter, skb))) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3215
			if (!adapter->ecdev) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3216
				netif_stop_queue(netdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3217
				if (!test_bit(__E1000_DOWN, &adapter->flags))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3218
					mod_timer(&adapter->tx_fifo_stall_timer,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3219
					          jiffies + 1);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3220
			}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3221
			return NETDEV_TX_BUSY;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3222
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3223
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3224
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3225
	if (unlikely(vlan_tx_tag_present(skb))) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3226
		tx_flags |= E1000_TX_FLAGS_VLAN;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3227
		tx_flags |= (vlan_tx_tag_get(skb) << E1000_TX_FLAGS_VLAN_SHIFT);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3228
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3229
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3230
	first = tx_ring->next_to_use;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3231
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3232
	tso = e1000_tso(adapter, tx_ring, skb);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3233
	if (tso < 0) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3234
		if (!adapter->ecdev) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3235
			dev_kfree_skb_any(skb);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3236
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3237
		return NETDEV_TX_OK;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3238
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3239
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3240
	if (likely(tso)) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3241
		if (likely(hw->mac_type != e1000_82544))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3242
			tx_ring->last_tx_tso = 1;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3243
		tx_flags |= E1000_TX_FLAGS_TSO;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3244
	} else if (likely(e1000_tx_csum(adapter, tx_ring, skb)))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3245
		tx_flags |= E1000_TX_FLAGS_CSUM;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3246
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3247
	if (likely(skb->protocol == htons(ETH_P_IP)))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3248
		tx_flags |= E1000_TX_FLAGS_IPV4;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3249
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3250
	count = e1000_tx_map(adapter, tx_ring, skb, first, max_per_txd,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3251
	                     nr_frags, mss);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3252
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3253
	if (count) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3254
		e1000_tx_queue(adapter, tx_ring, tx_flags, count);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3255
		if (!adapter->ecdev) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3256
			/* Make sure there is space in the ring for the next send. */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3257
			e1000_maybe_stop_tx(netdev, tx_ring, MAX_SKB_FRAGS + 2);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3258
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3259
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3260
	} else {
2289
1c75f52e5c0f Minor: Indentation and braces.
Florian Pose <fp@igh-essen.com>
parents: 2233
diff changeset
  3261
		if (!adapter->ecdev) {
1c75f52e5c0f Minor: Indentation and braces.
Florian Pose <fp@igh-essen.com>
parents: 2233
diff changeset
  3262
			dev_kfree_skb_any(skb);
1c75f52e5c0f Minor: Indentation and braces.
Florian Pose <fp@igh-essen.com>
parents: 2233
diff changeset
  3263
		}
2202
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3264
		tx_ring->buffer_info[first].time_stamp = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3265
		tx_ring->next_to_use = first;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3266
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3267
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3268
	return NETDEV_TX_OK;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3269
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3270
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3271
/**
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3272
 * e1000_tx_timeout - Respond to a Tx Hang
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3273
 * @netdev: network interface device structure
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3274
 **/
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3275
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3276
static void e1000_tx_timeout(struct net_device *netdev)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3277
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3278
	struct e1000_adapter *adapter = netdev_priv(netdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3279
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3280
	/* Do the reset outside of interrupt context */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3281
	adapter->tx_timeout_count++;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3282
	schedule_work(&adapter->reset_task);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3283
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3284
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3285
static void e1000_reset_task(struct work_struct *work)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3286
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3287
	struct e1000_adapter *adapter =
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3288
		container_of(work, struct e1000_adapter, reset_task);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3289
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3290
	e1000_reinit_safe(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3291
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3292
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3293
/**
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3294
 * e1000_get_stats - Get System Network Statistics
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3295
 * @netdev: network interface device structure
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3296
 *
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3297
 * Returns the address of the device statistics structure.
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3298
 * The statistics are actually updated from the timer callback.
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3299
 **/
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3300
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3301
static struct net_device_stats *e1000_get_stats(struct net_device *netdev)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3302
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3303
	/* only return the current stats */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3304
	return &netdev->stats;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3305
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3306
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3307
/**
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3308
 * e1000_change_mtu - Change the Maximum Transfer Unit
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3309
 * @netdev: network interface device structure
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3310
 * @new_mtu: new value for maximum frame size
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3311
 *
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3312
 * Returns 0 on success, negative on failure
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3313
 **/
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3314
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3315
static int e1000_change_mtu(struct net_device *netdev, int new_mtu)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3316
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3317
	struct e1000_adapter *adapter = netdev_priv(netdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3318
	struct e1000_hw *hw = &adapter->hw;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3319
	int max_frame = new_mtu + ENET_HEADER_SIZE + ETHERNET_FCS_SIZE;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3320
2289
1c75f52e5c0f Minor: Indentation and braces.
Florian Pose <fp@igh-essen.com>
parents: 2233
diff changeset
  3321
	if (adapter->ecdev) {
2202
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3322
		return -EBUSY;
2289
1c75f52e5c0f Minor: Indentation and braces.
Florian Pose <fp@igh-essen.com>
parents: 2233
diff changeset
  3323
	}
2202
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3324
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3325
	if ((max_frame < MINIMUM_ETHERNET_FRAME_SIZE) ||
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3326
	    (max_frame > MAX_JUMBO_FRAME_SIZE)) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3327
		e_err(probe, "Invalid MTU setting\n");
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3328
		return -EINVAL;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3329
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3330
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3331
	/* Adapter-specific max frame size limits. */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3332
	switch (hw->mac_type) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3333
	case e1000_undefined ... e1000_82542_rev2_1:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3334
		if (max_frame > (ETH_FRAME_LEN + ETH_FCS_LEN)) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3335
			e_err(probe, "Jumbo Frames not supported.\n");
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3336
			return -EINVAL;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3337
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3338
		break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3339
	default:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3340
		/* Capable of supporting up to MAX_JUMBO_FRAME_SIZE limit. */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3341
		break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3342
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3343
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3344
	while (test_and_set_bit(__E1000_RESETTING, &adapter->flags))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3345
		msleep(1);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3346
	/* e1000_down has a dependency on max_frame_size */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3347
	hw->max_frame_size = max_frame;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3348
	if (netif_running(netdev))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3349
		e1000_down(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3350
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3351
	/* NOTE: netdev_alloc_skb reserves 16 bytes, and typically NET_IP_ALIGN
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3352
	 * means we reserve 2 more, this pushes us to allocate from the next
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3353
	 * larger slab size.
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3354
	 * i.e. RXBUFFER_2048 --> size-4096 slab
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3355
	 *  however with the new *_jumbo_rx* routines, jumbo receives will use
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3356
	 *  fragmented skbs */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3357
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3358
	if (max_frame <= E1000_RXBUFFER_2048)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3359
		adapter->rx_buffer_len = E1000_RXBUFFER_2048;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3360
	else
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3361
#if (PAGE_SIZE >= E1000_RXBUFFER_16384)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3362
		adapter->rx_buffer_len = E1000_RXBUFFER_16384;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3363
#elif (PAGE_SIZE >= E1000_RXBUFFER_4096)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3364
		adapter->rx_buffer_len = PAGE_SIZE;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3365
#endif
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3366
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3367
	/* adjust allocation if LPE protects us, and we aren't using SBP */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3368
	if (!hw->tbi_compatibility_on &&
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3369
	    ((max_frame == (ETH_FRAME_LEN + ETH_FCS_LEN)) ||
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3370
	     (max_frame == MAXIMUM_ETHERNET_VLAN_SIZE)))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3371
		adapter->rx_buffer_len = MAXIMUM_ETHERNET_VLAN_SIZE;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3372
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3373
	pr_info("%s changing MTU from %d to %d\n",
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3374
		netdev->name, netdev->mtu, new_mtu);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3375
	netdev->mtu = new_mtu;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3376
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3377
	if (netif_running(netdev))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3378
		e1000_up(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3379
	else
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3380
		e1000_reset(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3381
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3382
	clear_bit(__E1000_RESETTING, &adapter->flags);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3383
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3384
	return 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3385
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3386
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3387
/**
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3388
 * e1000_update_stats - Update the board statistics counters
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3389
 * @adapter: board private structure
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3390
 **/
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3391
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3392
void e1000_update_stats(struct e1000_adapter *adapter)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3393
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3394
	struct net_device *netdev = adapter->netdev;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3395
	struct e1000_hw *hw = &adapter->hw;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3396
	struct pci_dev *pdev = adapter->pdev;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3397
	unsigned long flags = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3398
	u16 phy_tmp;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3399
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3400
#define PHY_IDLE_ERROR_COUNT_MASK 0x00FF
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3401
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3402
	/*
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3403
	 * Prevent stats update while adapter is being reset, or if the pci
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3404
	 * connection is down.
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3405
	 */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3406
	if (adapter->link_speed == 0)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3407
		return;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3408
	if (pci_channel_offline(pdev))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3409
		return;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3410
2289
1c75f52e5c0f Minor: Indentation and braces.
Florian Pose <fp@igh-essen.com>
parents: 2233
diff changeset
  3411
	if (!adapter->ecdev) {
2202
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3412
		spin_lock_irqsave(&adapter->stats_lock, flags);
2289
1c75f52e5c0f Minor: Indentation and braces.
Florian Pose <fp@igh-essen.com>
parents: 2233
diff changeset
  3413
	}
2202
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3414
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3415
	/* these counters are modified from e1000_tbi_adjust_stats,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3416
	 * called from the interrupt context, so they must only
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3417
	 * be written while holding adapter->stats_lock
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3418
	 */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3419
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3420
	adapter->stats.crcerrs += er32(CRCERRS);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3421
	adapter->stats.gprc += er32(GPRC);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3422
	adapter->stats.gorcl += er32(GORCL);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3423
	adapter->stats.gorch += er32(GORCH);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3424
	adapter->stats.bprc += er32(BPRC);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3425
	adapter->stats.mprc += er32(MPRC);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3426
	adapter->stats.roc += er32(ROC);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3427
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3428
	adapter->stats.prc64 += er32(PRC64);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3429
	adapter->stats.prc127 += er32(PRC127);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3430
	adapter->stats.prc255 += er32(PRC255);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3431
	adapter->stats.prc511 += er32(PRC511);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3432
	adapter->stats.prc1023 += er32(PRC1023);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3433
	adapter->stats.prc1522 += er32(PRC1522);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3434
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3435
	adapter->stats.symerrs += er32(SYMERRS);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3436
	adapter->stats.mpc += er32(MPC);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3437
	adapter->stats.scc += er32(SCC);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3438
	adapter->stats.ecol += er32(ECOL);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3439
	adapter->stats.mcc += er32(MCC);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3440
	adapter->stats.latecol += er32(LATECOL);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3441
	adapter->stats.dc += er32(DC);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3442
	adapter->stats.sec += er32(SEC);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3443
	adapter->stats.rlec += er32(RLEC);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3444
	adapter->stats.xonrxc += er32(XONRXC);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3445
	adapter->stats.xontxc += er32(XONTXC);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3446
	adapter->stats.xoffrxc += er32(XOFFRXC);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3447
	adapter->stats.xofftxc += er32(XOFFTXC);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3448
	adapter->stats.fcruc += er32(FCRUC);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3449
	adapter->stats.gptc += er32(GPTC);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3450
	adapter->stats.gotcl += er32(GOTCL);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3451
	adapter->stats.gotch += er32(GOTCH);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3452
	adapter->stats.rnbc += er32(RNBC);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3453
	adapter->stats.ruc += er32(RUC);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3454
	adapter->stats.rfc += er32(RFC);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3455
	adapter->stats.rjc += er32(RJC);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3456
	adapter->stats.torl += er32(TORL);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3457
	adapter->stats.torh += er32(TORH);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3458
	adapter->stats.totl += er32(TOTL);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3459
	adapter->stats.toth += er32(TOTH);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3460
	adapter->stats.tpr += er32(TPR);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3461
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3462
	adapter->stats.ptc64 += er32(PTC64);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3463
	adapter->stats.ptc127 += er32(PTC127);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3464
	adapter->stats.ptc255 += er32(PTC255);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3465
	adapter->stats.ptc511 += er32(PTC511);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3466
	adapter->stats.ptc1023 += er32(PTC1023);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3467
	adapter->stats.ptc1522 += er32(PTC1522);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3468
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3469
	adapter->stats.mptc += er32(MPTC);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3470
	adapter->stats.bptc += er32(BPTC);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3471
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3472
	/* used for adaptive IFS */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3473
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3474
	hw->tx_packet_delta = er32(TPT);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3475
	adapter->stats.tpt += hw->tx_packet_delta;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3476
	hw->collision_delta = er32(COLC);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3477
	adapter->stats.colc += hw->collision_delta;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3478
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3479
	if (hw->mac_type >= e1000_82543) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3480
		adapter->stats.algnerrc += er32(ALGNERRC);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3481
		adapter->stats.rxerrc += er32(RXERRC);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3482
		adapter->stats.tncrs += er32(TNCRS);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3483
		adapter->stats.cexterr += er32(CEXTERR);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3484
		adapter->stats.tsctc += er32(TSCTC);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3485
		adapter->stats.tsctfc += er32(TSCTFC);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3486
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3487
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3488
	/* Fill out the OS statistics structure */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3489
	netdev->stats.multicast = adapter->stats.mprc;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3490
	netdev->stats.collisions = adapter->stats.colc;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3491
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3492
	/* Rx Errors */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3493
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3494
	/* RLEC on some newer hardware can be incorrect so build
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3495
	* our own version based on RUC and ROC */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3496
	netdev->stats.rx_errors = adapter->stats.rxerrc +
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3497
		adapter->stats.crcerrs + adapter->stats.algnerrc +
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3498
		adapter->stats.ruc + adapter->stats.roc +
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3499
		adapter->stats.cexterr;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3500
	adapter->stats.rlerrc = adapter->stats.ruc + adapter->stats.roc;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3501
	netdev->stats.rx_length_errors = adapter->stats.rlerrc;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3502
	netdev->stats.rx_crc_errors = adapter->stats.crcerrs;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3503
	netdev->stats.rx_frame_errors = adapter->stats.algnerrc;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3504
	netdev->stats.rx_missed_errors = adapter->stats.mpc;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3505
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3506
	/* Tx Errors */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3507
	adapter->stats.txerrc = adapter->stats.ecol + adapter->stats.latecol;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3508
	netdev->stats.tx_errors = adapter->stats.txerrc;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3509
	netdev->stats.tx_aborted_errors = adapter->stats.ecol;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3510
	netdev->stats.tx_window_errors = adapter->stats.latecol;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3511
	netdev->stats.tx_carrier_errors = adapter->stats.tncrs;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3512
	if (hw->bad_tx_carr_stats_fd &&
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3513
	    adapter->link_duplex == FULL_DUPLEX) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3514
		netdev->stats.tx_carrier_errors = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3515
		adapter->stats.tncrs = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3516
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3517
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3518
	/* Tx Dropped needs to be maintained elsewhere */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3519
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3520
	/* Phy Stats */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3521
	if (hw->media_type == e1000_media_type_copper) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3522
		if ((adapter->link_speed == SPEED_1000) &&
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3523
		   (!e1000_read_phy_reg(hw, PHY_1000T_STATUS, &phy_tmp))) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3524
			phy_tmp &= PHY_IDLE_ERROR_COUNT_MASK;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3525
			adapter->phy_stats.idle_errors += phy_tmp;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3526
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3527
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3528
		if ((hw->mac_type <= e1000_82546) &&
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3529
		   (hw->phy_type == e1000_phy_m88) &&
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3530
		   !e1000_read_phy_reg(hw, M88E1000_RX_ERR_CNTR, &phy_tmp))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3531
			adapter->phy_stats.receive_errors += phy_tmp;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3532
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3533
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3534
	/* Management Stats */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3535
	if (hw->has_smbus) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3536
		adapter->stats.mgptc += er32(MGTPTC);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3537
		adapter->stats.mgprc += er32(MGTPRC);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3538
		adapter->stats.mgpdc += er32(MGTPDC);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3539
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3540
2289
1c75f52e5c0f Minor: Indentation and braces.
Florian Pose <fp@igh-essen.com>
parents: 2233
diff changeset
  3541
	if (!adapter->ecdev) {
2202
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3542
		spin_unlock_irqrestore(&adapter->stats_lock, flags);
2289
1c75f52e5c0f Minor: Indentation and braces.
Florian Pose <fp@igh-essen.com>
parents: 2233
diff changeset
  3543
	}
2202
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3544
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3545
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3546
void ec_poll(struct net_device *netdev)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3547
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3548
	struct e1000_adapter *adapter = netdev_priv(netdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3549
	if (jiffies - adapter->ec_watchdog_jiffies >= 2 * HZ) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3550
		e1000_watchdog((unsigned long) adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3551
		adapter->ec_watchdog_jiffies = jiffies;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3552
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3553
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3554
	e1000_intr(0, netdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3555
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3556
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3557
/**
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3558
 * e1000_intr - Interrupt Handler
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3559
 * @irq: interrupt number
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3560
 * @data: pointer to a network interface device structure
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3561
 **/
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3562
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3563
static irqreturn_t e1000_intr(int irq, void *data)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3564
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3565
	struct net_device *netdev = data;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3566
	struct e1000_adapter *adapter = netdev_priv(netdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3567
	struct e1000_hw *hw = &adapter->hw;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3568
	u32 icr = er32(ICR);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3569
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3570
	if (unlikely((!icr) || test_bit(__E1000_DOWN, &adapter->flags)))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3571
		return IRQ_NONE;  /* Not our interrupt */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3572
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3573
    if (unlikely(icr & (E1000_ICR_RXSEQ | E1000_ICR_LSC))) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3574
		hw->get_link_status = 1;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3575
		/* guard against interrupt when we're going down */
2214
f55fe046b22b Avoided enabling timer.
Florian Pose <fp@igh-essen.com>
parents: 2202
diff changeset
  3576
		if (!adapter->ecdev && !test_bit(__E1000_DOWN, &adapter->flags))
2202
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3577
			mod_timer(&adapter->watchdog_timer, jiffies + 1);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3578
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3579
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3580
	if (adapter->ecdev) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3581
		int i, ec_work_done = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3582
		for (i = 0; i < E1000_MAX_INTR; i++) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3583
			if (unlikely(!adapter->clean_rx(adapter, adapter->rx_ring,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3584
							&ec_work_done, 100) &&
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3585
						!e1000_clean_tx_irq(adapter, adapter->tx_ring))) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3586
				break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3587
			}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3588
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3589
	} else {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3590
		/* disable interrupts, without the synchronize_irq bit */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3591
		ew32(IMC, ~0);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3592
		E1000_WRITE_FLUSH();
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3593
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3594
		if (likely(napi_schedule_prep(&adapter->napi))) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3595
			adapter->total_tx_bytes = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3596
			adapter->total_tx_packets = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3597
			adapter->total_rx_bytes = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3598
			adapter->total_rx_packets = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3599
			__napi_schedule(&adapter->napi);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3600
		} else {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3601
			/* this really should not happen! if it does it is basically a
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3602
			 * bug, but not a hard error, so enable ints and continue */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3603
			if (!test_bit(__E1000_DOWN, &adapter->flags))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3604
				e1000_irq_enable(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3605
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3606
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3607
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3608
	return IRQ_HANDLED;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3609
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3610
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3611
/**
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3612
 * e1000_clean - NAPI Rx polling callback
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3613
 * @adapter: board private structure
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3614
 * EtherCAT: never called
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3615
 **/
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3616
static int e1000_clean(struct napi_struct *napi, int budget)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3617
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3618
	struct e1000_adapter *adapter = container_of(napi, struct e1000_adapter, napi);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3619
	int tx_clean_complete = 0, work_done = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3620
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3621
	tx_clean_complete = e1000_clean_tx_irq(adapter, &adapter->tx_ring[0]);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3622
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3623
	adapter->clean_rx(adapter, &adapter->rx_ring[0], &work_done, budget);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3624
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3625
	if (!tx_clean_complete)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3626
		work_done = budget;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3627
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3628
	/* If budget not fully consumed, exit the polling mode */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3629
	if (work_done < budget) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3630
		if (likely(adapter->itr_setting & 3))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3631
			e1000_set_itr(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3632
		napi_complete(napi);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3633
		if (!test_bit(__E1000_DOWN, &adapter->flags))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3634
			e1000_irq_enable(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3635
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3636
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3637
	return work_done;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3638
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3639
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3640
/**
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3641
 * e1000_clean_tx_irq - Reclaim resources after transmit completes
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3642
 * @adapter: board private structure
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3643
 **/
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3644
static bool e1000_clean_tx_irq(struct e1000_adapter *adapter,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3645
			       struct e1000_tx_ring *tx_ring)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3646
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3647
	struct e1000_hw *hw = &adapter->hw;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3648
	struct net_device *netdev = adapter->netdev;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3649
	struct e1000_tx_desc *tx_desc, *eop_desc;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3650
	struct e1000_buffer *buffer_info;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3651
	unsigned int i, eop;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3652
	unsigned int count = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3653
	unsigned int total_tx_bytes=0, total_tx_packets=0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3654
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3655
	i = tx_ring->next_to_clean;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3656
	eop = tx_ring->buffer_info[i].next_to_watch;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3657
	eop_desc = E1000_TX_DESC(*tx_ring, eop);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3658
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3659
	while ((eop_desc->upper.data & cpu_to_le32(E1000_TXD_STAT_DD)) &&
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3660
	       (count < tx_ring->count)) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3661
		bool cleaned = false;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3662
		rmb();	/* read buffer_info after eop_desc */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3663
		for ( ; !cleaned; count++) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3664
			tx_desc = E1000_TX_DESC(*tx_ring, i);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3665
			buffer_info = &tx_ring->buffer_info[i];
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3666
			cleaned = (i == eop);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3667
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3668
			if (cleaned) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3669
				struct sk_buff *skb = buffer_info->skb;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3670
				unsigned int segs, bytecount;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3671
				segs = skb_shinfo(skb)->gso_segs ?: 1;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3672
				/* multiply data chunks by size of headers */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3673
				bytecount = ((segs - 1) * skb_headlen(skb)) +
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3674
				            skb->len;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3675
				total_tx_packets += segs;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3676
				total_tx_bytes += bytecount;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3677
			}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3678
			e1000_unmap_and_free_tx_resource(adapter, buffer_info);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3679
			tx_desc->upper.data = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3680
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3681
			if (unlikely(++i == tx_ring->count)) i = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3682
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3683
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3684
		eop = tx_ring->buffer_info[i].next_to_watch;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3685
		eop_desc = E1000_TX_DESC(*tx_ring, eop);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3686
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3687
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3688
	tx_ring->next_to_clean = i;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3689
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3690
#define TX_WAKE_THRESHOLD 32
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3691
	if (!adapter->ecdev && unlikely(count && netif_carrier_ok(netdev) &&
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3692
		     E1000_DESC_UNUSED(tx_ring) >= TX_WAKE_THRESHOLD)) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3693
		/* Make sure that anybody stopping the queue after this
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3694
		 * sees the new next_to_clean.
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3695
		 */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3696
		smp_mb();
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3697
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3698
		if (netif_queue_stopped(netdev) &&
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3699
		    !(test_bit(__E1000_DOWN, &adapter->flags))) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3700
			netif_wake_queue(netdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3701
			++adapter->restart_queue;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3702
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3703
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3704
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3705
	if (!adapter->ecdev && adapter->detect_tx_hung) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3706
		/* Detect a transmit hang in hardware, this serializes the
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3707
		 * check with the clearing of time_stamp and movement of i */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3708
		adapter->detect_tx_hung = false;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3709
		if (tx_ring->buffer_info[eop].time_stamp &&
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3710
		    time_after(jiffies, tx_ring->buffer_info[eop].time_stamp +
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3711
		               (adapter->tx_timeout_factor * HZ)) &&
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3712
		    !(er32(STATUS) & E1000_STATUS_TXOFF)) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3713
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3714
			/* detected Tx unit hang */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3715
			e_err(drv, "Detected Tx Unit Hang\n"
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3716
			      "  Tx Queue             <%lu>\n"
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3717
			      "  TDH                  <%x>\n"
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3718
			      "  TDT                  <%x>\n"
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3719
			      "  next_to_use          <%x>\n"
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3720
			      "  next_to_clean        <%x>\n"
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3721
			      "buffer_info[next_to_clean]\n"
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3722
			      "  time_stamp           <%lx>\n"
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3723
			      "  next_to_watch        <%x>\n"
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3724
			      "  jiffies              <%lx>\n"
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3725
			      "  next_to_watch.status <%x>\n",
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3726
				(unsigned long)((tx_ring - adapter->tx_ring) /
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3727
					sizeof(struct e1000_tx_ring)),
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3728
				readl(hw->hw_addr + tx_ring->tdh),
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3729
				readl(hw->hw_addr + tx_ring->tdt),
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3730
				tx_ring->next_to_use,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3731
				tx_ring->next_to_clean,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3732
				tx_ring->buffer_info[eop].time_stamp,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3733
				eop,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3734
				jiffies,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3735
				eop_desc->upper.fields.status);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3736
			netif_stop_queue(netdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3737
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3738
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3739
	adapter->total_tx_bytes += total_tx_bytes;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3740
	adapter->total_tx_packets += total_tx_packets;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3741
	netdev->stats.tx_bytes += total_tx_bytes;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3742
	netdev->stats.tx_packets += total_tx_packets;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3743
	return count < tx_ring->count;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3744
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3745
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3746
/**
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3747
 * e1000_rx_checksum - Receive Checksum Offload for 82543
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3748
 * @adapter:     board private structure
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3749
 * @status_err:  receive descriptor status and error fields
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3750
 * @csum:        receive descriptor csum field
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3751
 * @sk_buff:     socket buffer with received data
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3752
 **/
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3753
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3754
static void e1000_rx_checksum(struct e1000_adapter *adapter, u32 status_err,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3755
			      u32 csum, struct sk_buff *skb)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3756
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3757
	struct e1000_hw *hw = &adapter->hw;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3758
	u16 status = (u16)status_err;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3759
	u8 errors = (u8)(status_err >> 24);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3760
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3761
	skb_checksum_none_assert(skb);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3762
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3763
	/* 82543 or newer only */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3764
	if (unlikely(hw->mac_type < e1000_82543)) return;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3765
	/* Ignore Checksum bit is set */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3766
	if (unlikely(status & E1000_RXD_STAT_IXSM)) return;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3767
	/* TCP/UDP checksum error bit is set */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3768
	if (unlikely(errors & E1000_RXD_ERR_TCPE)) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3769
		/* let the stack verify checksum errors */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3770
		adapter->hw_csum_err++;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3771
		return;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3772
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3773
	/* TCP/UDP Checksum has not been calculated */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3774
	if (!(status & E1000_RXD_STAT_TCPCS))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3775
		return;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3776
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3777
	/* It must be a TCP or UDP packet with a valid checksum */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3778
	if (likely(status & E1000_RXD_STAT_TCPCS)) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3779
		/* TCP checksum is good */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3780
		skb->ip_summed = CHECKSUM_UNNECESSARY;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3781
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3782
	adapter->hw_csum_good++;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3783
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3784
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3785
/**
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3786
 * e1000_consume_page - helper function
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3787
 **/
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3788
static void e1000_consume_page(struct e1000_buffer *bi, struct sk_buff *skb,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3789
                               u16 length)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3790
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3791
	bi->page = NULL;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3792
	skb->len += length;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3793
	skb->data_len += length;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3794
	skb->truesize += length;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3795
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3796
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3797
/**
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3798
 * e1000_receive_skb - helper function to handle rx indications
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3799
 * @adapter: board private structure
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3800
 * @status: descriptor status field as written by hardware
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3801
 * @vlan: descriptor vlan field as written by hardware (no le/be conversion)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3802
 * @skb: pointer to sk_buff to be indicated to stack
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3803
 */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3804
static void e1000_receive_skb(struct e1000_adapter *adapter, u8 status,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3805
			      __le16 vlan, struct sk_buff *skb)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3806
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3807
	skb->protocol = eth_type_trans(skb, adapter->netdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3808
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3809
	if ((unlikely(adapter->vlgrp && (status & E1000_RXD_STAT_VP))))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3810
		vlan_gro_receive(&adapter->napi, adapter->vlgrp,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3811
				 le16_to_cpu(vlan) & E1000_RXD_SPC_VLAN_MASK,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3812
				 skb);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3813
	else
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3814
		napi_gro_receive(&adapter->napi, skb);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3815
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3816
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3817
/**
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3818
 * e1000_clean_jumbo_rx_irq - Send received data up the network stack; legacy
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3819
 * @adapter: board private structure
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3820
 * @rx_ring: ring to clean
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3821
 * @work_done: amount of napi work completed this call
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3822
 * @work_to_do: max amount of work allowed for this call to do
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3823
 *
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3824
 * the return value indicates whether actual cleaning was done, there
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3825
 * is no guarantee that everything was cleaned
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3826
 */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3827
static bool e1000_clean_jumbo_rx_irq(struct e1000_adapter *adapter,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3828
				     struct e1000_rx_ring *rx_ring,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3829
				     int *work_done, int work_to_do)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3830
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3831
	struct e1000_hw *hw = &adapter->hw;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3832
	struct net_device *netdev = adapter->netdev;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3833
	struct pci_dev *pdev = adapter->pdev;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3834
	struct e1000_rx_desc *rx_desc, *next_rxd;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3835
	struct e1000_buffer *buffer_info, *next_buffer;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3836
	unsigned long irq_flags;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3837
	u32 length;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3838
	unsigned int i;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3839
	int cleaned_count = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3840
	bool cleaned = false;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3841
	unsigned int total_rx_bytes=0, total_rx_packets=0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3842
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3843
	i = rx_ring->next_to_clean;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3844
	rx_desc = E1000_RX_DESC(*rx_ring, i);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3845
	buffer_info = &rx_ring->buffer_info[i];
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3846
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3847
	while (rx_desc->status & E1000_RXD_STAT_DD) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3848
		struct sk_buff *skb;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3849
		u8 status;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3850
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3851
		if (*work_done >= work_to_do)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3852
			break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3853
		(*work_done)++;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3854
		rmb(); /* read descriptor and rx_buffer_info after status DD */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3855
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3856
		status = rx_desc->status;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3857
		skb = buffer_info->skb;
2289
1c75f52e5c0f Minor: Indentation and braces.
Florian Pose <fp@igh-essen.com>
parents: 2233
diff changeset
  3858
		if (!adapter->ecdev) {
1c75f52e5c0f Minor: Indentation and braces.
Florian Pose <fp@igh-essen.com>
parents: 2233
diff changeset
  3859
			buffer_info->skb = NULL;
1c75f52e5c0f Minor: Indentation and braces.
Florian Pose <fp@igh-essen.com>
parents: 2233
diff changeset
  3860
		}
2202
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3861
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3862
		if (++i == rx_ring->count) i = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3863
		next_rxd = E1000_RX_DESC(*rx_ring, i);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3864
		prefetch(next_rxd);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3865
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3866
		next_buffer = &rx_ring->buffer_info[i];
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3867
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3868
		cleaned = true;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3869
		cleaned_count++;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3870
		dma_unmap_page(&pdev->dev, buffer_info->dma,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3871
			       buffer_info->length, DMA_FROM_DEVICE);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3872
		buffer_info->dma = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3873
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3874
		length = le16_to_cpu(rx_desc->length);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3875
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3876
		/* errors is only valid for DD + EOP descriptors */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3877
		if (!adapter->ecdev &&
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3878
		    unlikely((status & E1000_RXD_STAT_EOP) &&
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3879
		    (rx_desc->errors & E1000_RXD_ERR_FRAME_ERR_MASK))) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3880
			u8 last_byte = *(skb->data + length - 1);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3881
			if (TBI_ACCEPT(hw, status, rx_desc->errors, length,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3882
				       last_byte)) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3883
				spin_lock_irqsave(&adapter->stats_lock,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3884
				                  irq_flags);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3885
				e1000_tbi_adjust_stats(hw, &adapter->stats,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3886
				                       length, skb->data);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3887
				spin_unlock_irqrestore(&adapter->stats_lock,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3888
				                       irq_flags);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3889
				length--;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3890
			} else {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3891
				/* recycle both page and skb */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3892
				buffer_info->skb = skb;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3893
				/* an error means any chain goes out the window
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3894
				 * too */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3895
				if (rx_ring->rx_skb_top)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3896
					dev_kfree_skb(rx_ring->rx_skb_top);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3897
				rx_ring->rx_skb_top = NULL;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3898
				goto next_desc;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3899
			}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3900
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3901
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3902
#define rxtop rx_ring->rx_skb_top
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3903
		if (!(status & E1000_RXD_STAT_EOP)) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3904
			/* this descriptor is only the beginning (or middle) */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3905
			if (!rxtop) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3906
				/* this is the beginning of a chain */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3907
				rxtop = skb;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3908
				skb_fill_page_desc(rxtop, 0, buffer_info->page,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3909
				                   0, length);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3910
			} else {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3911
				/* this is the middle of a chain */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3912
				skb_fill_page_desc(rxtop,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3913
				    skb_shinfo(rxtop)->nr_frags,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3914
				    buffer_info->page, 0, length);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3915
				/* re-use the skb, only consumed the page */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3916
				buffer_info->skb = skb;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3917
			}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3918
			e1000_consume_page(buffer_info, rxtop, length);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3919
			goto next_desc;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3920
		} else {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3921
			if (rxtop) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3922
				/* end of the chain */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3923
				skb_fill_page_desc(rxtop,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3924
				    skb_shinfo(rxtop)->nr_frags,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3925
				    buffer_info->page, 0, length);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3926
				/* re-use the current skb, we only consumed the
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3927
				 * page */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3928
				buffer_info->skb = skb;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3929
				skb = rxtop;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3930
				rxtop = NULL;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3931
				e1000_consume_page(buffer_info, skb, length);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3932
			} else {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3933
				/* no chain, got EOP, this buf is the packet
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3934
				 * copybreak to save the put_page/alloc_page */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3935
				if (length <= copybreak &&
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3936
				    skb_tailroom(skb) >= length) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3937
					u8 *vaddr;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3938
					vaddr = kmap_atomic(buffer_info->page,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3939
					                    KM_SKB_DATA_SOFTIRQ);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3940
					memcpy(skb_tail_pointer(skb), vaddr, length);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3941
					kunmap_atomic(vaddr,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3942
					              KM_SKB_DATA_SOFTIRQ);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3943
					/* re-use the page, so don't erase
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3944
					 * buffer_info->page */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3945
					skb_put(skb, length);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3946
				} else {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3947
					skb_fill_page_desc(skb, 0,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3948
					                   buffer_info->page, 0,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3949
				                           length);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3950
					e1000_consume_page(buffer_info, skb,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3951
					                   length);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3952
				}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3953
			}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3954
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3955
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3956
		/* Receive Checksum Offload XXX recompute due to CRC strip? */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3957
		e1000_rx_checksum(adapter,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3958
		                  (u32)(status) |
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3959
		                  ((u32)(rx_desc->errors) << 24),
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3960
		                  le16_to_cpu(rx_desc->csum), skb);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3961
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3962
		pskb_trim(skb, skb->len - 4);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3963
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3964
		/* probably a little skewed due to removing CRC */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3965
		total_rx_bytes += skb->len;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3966
		total_rx_packets++;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3967
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3968
		/* eth type trans needs skb->data to point to something */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3969
		if (!pskb_may_pull(skb, ETH_HLEN)) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3970
			e_err(drv, "pskb_may_pull failed.\n");
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3971
			if (!adapter->ecdev) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3972
				dev_kfree_skb(skb);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3973
			}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3974
			goto next_desc;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3975
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3976
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3977
		if (adapter->ecdev) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3978
			ecdev_receive(adapter->ecdev, skb->data, length);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3979
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3980
			// No need to detect link status as
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3981
			// long as frames are received: Reset watchdog.
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3982
			adapter->ec_watchdog_jiffies = jiffies;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3983
		} else {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3984
			e1000_receive_skb(adapter, status, rx_desc->special, skb);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3985
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3986
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3987
next_desc:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3988
		rx_desc->status = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3989
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3990
		/* return some buffers to hardware, one at a time is too slow */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3991
		if (unlikely(cleaned_count >= E1000_RX_BUFFER_WRITE)) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3992
			adapter->alloc_rx_buf(adapter, rx_ring, cleaned_count);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3993
			cleaned_count = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3994
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3995
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3996
		/* use prefetched values */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3997
		rx_desc = next_rxd;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3998
		buffer_info = next_buffer;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3999
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4000
	rx_ring->next_to_clean = i;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4001
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4002
	cleaned_count = E1000_DESC_UNUSED(rx_ring);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4003
	if (cleaned_count)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4004
		adapter->alloc_rx_buf(adapter, rx_ring, cleaned_count);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4005
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4006
	adapter->total_rx_packets += total_rx_packets;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4007
	adapter->total_rx_bytes += total_rx_bytes;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4008
	netdev->stats.rx_bytes += total_rx_bytes;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4009
	netdev->stats.rx_packets += total_rx_packets;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4010
	return cleaned;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4011
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4012
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4013
/*
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4014
 * this should improve performance for small packets with large amounts
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4015
 * of reassembly being done in the stack
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4016
 */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4017
static void e1000_check_copybreak(struct net_device *netdev,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4018
				 struct e1000_buffer *buffer_info,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4019
				 u32 length, struct sk_buff **skb)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4020
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4021
	struct e1000_adapter *adapter = netdev_priv(netdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4022
	struct sk_buff *new_skb;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4023
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4024
	if (adapter->ecdev || length > copybreak)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4025
		return;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4026
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4027
	new_skb = netdev_alloc_skb_ip_align(netdev, length);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4028
	if (!new_skb)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4029
		return;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4030
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4031
	skb_copy_to_linear_data_offset(new_skb, -NET_IP_ALIGN,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4032
				       (*skb)->data - NET_IP_ALIGN,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4033
				       length + NET_IP_ALIGN);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4034
	/* save the skb in buffer_info as good */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4035
	buffer_info->skb = *skb;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4036
	*skb = new_skb;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4037
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4038
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4039
/**
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4040
 * e1000_clean_rx_irq - Send received data up the network stack; legacy
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4041
 * @adapter: board private structure
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4042
 * @rx_ring: ring to clean
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4043
 * @work_done: amount of napi work completed this call
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4044
 * @work_to_do: max amount of work allowed for this call to do
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4045
 */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4046
static bool e1000_clean_rx_irq(struct e1000_adapter *adapter,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4047
			       struct e1000_rx_ring *rx_ring,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4048
			       int *work_done, int work_to_do)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4049
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4050
	struct e1000_hw *hw = &adapter->hw;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4051
	struct net_device *netdev = adapter->netdev;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4052
	struct pci_dev *pdev = adapter->pdev;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4053
	struct e1000_rx_desc *rx_desc, *next_rxd;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4054
	struct e1000_buffer *buffer_info, *next_buffer;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4055
	unsigned long flags;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4056
	u32 length;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4057
	unsigned int i;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4058
	int cleaned_count = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4059
	bool cleaned = false;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4060
	unsigned int total_rx_bytes=0, total_rx_packets=0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4061
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4062
	i = rx_ring->next_to_clean;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4063
	rx_desc = E1000_RX_DESC(*rx_ring, i);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4064
	buffer_info = &rx_ring->buffer_info[i];
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4065
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4066
	while (rx_desc->status & E1000_RXD_STAT_DD) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4067
		struct sk_buff *skb;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4068
		u8 status;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4069
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4070
		if (*work_done >= work_to_do)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4071
			break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4072
		(*work_done)++;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4073
		rmb(); /* read descriptor and rx_buffer_info after status DD */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4074
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4075
		status = rx_desc->status;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4076
		skb = buffer_info->skb;
2289
1c75f52e5c0f Minor: Indentation and braces.
Florian Pose <fp@igh-essen.com>
parents: 2233
diff changeset
  4077
		if (!adapter->ecdev) {
1c75f52e5c0f Minor: Indentation and braces.
Florian Pose <fp@igh-essen.com>
parents: 2233
diff changeset
  4078
			buffer_info->skb = NULL;
1c75f52e5c0f Minor: Indentation and braces.
Florian Pose <fp@igh-essen.com>
parents: 2233
diff changeset
  4079
		}
2202
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4080
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4081
		prefetch(skb->data - NET_IP_ALIGN);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4082
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4083
		if (++i == rx_ring->count) i = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4084
		next_rxd = E1000_RX_DESC(*rx_ring, i);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4085
		prefetch(next_rxd);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4086
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4087
		next_buffer = &rx_ring->buffer_info[i];
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4088
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4089
		cleaned = true;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4090
		cleaned_count++;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4091
		dma_unmap_single(&pdev->dev, buffer_info->dma,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4092
				 buffer_info->length, DMA_FROM_DEVICE);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4093
		buffer_info->dma = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4094
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4095
		length = le16_to_cpu(rx_desc->length);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4096
		/* !EOP means multiple descriptors were used to store a single
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4097
		 * packet, if thats the case we need to toss it.  In fact, we
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4098
		 * to toss every packet with the EOP bit clear and the next
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4099
		 * frame that _does_ have the EOP bit set, as it is by
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4100
		 * definition only a frame fragment
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4101
		 */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4102
		if (unlikely(!(status & E1000_RXD_STAT_EOP)))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4103
			adapter->discarding = true;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4104
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4105
		if (adapter->discarding) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4106
			/* All receives must fit into a single buffer */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4107
			e_dbg("Receive packet consumed multiple buffers\n");
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4108
			/* recycle */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4109
			buffer_info->skb = skb;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4110
			if (status & E1000_RXD_STAT_EOP)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4111
				adapter->discarding = false;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4112
			goto next_desc;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4113
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4114
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4115
		if (!adapter->ecdev &&
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4116
		    unlikely(rx_desc->errors & E1000_RXD_ERR_FRAME_ERR_MASK)) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4117
			u8 last_byte = *(skb->data + length - 1);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4118
			if (TBI_ACCEPT(hw, status, rx_desc->errors, length,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4119
				       last_byte)) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4120
				spin_lock_irqsave(&adapter->stats_lock, flags);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4121
				e1000_tbi_adjust_stats(hw, &adapter->stats,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4122
				                       length, skb->data);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4123
				spin_unlock_irqrestore(&adapter->stats_lock,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4124
				                       flags);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4125
				length--;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4126
			} else {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4127
				/* recycle */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4128
				buffer_info->skb = skb;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4129
				goto next_desc;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4130
			}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4131
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4132
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4133
		/* adjust length to remove Ethernet CRC, this must be
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4134
		 * done after the TBI_ACCEPT workaround above */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4135
		length -= 4;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4136
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4137
		/* probably a little skewed due to removing CRC */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4138
		total_rx_bytes += length;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4139
		total_rx_packets++;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4140
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4141
		e1000_check_copybreak(netdev, buffer_info, length, &skb);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4142
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4143
		skb_put(skb, length);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4144
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4145
		/* Receive Checksum Offload */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4146
		e1000_rx_checksum(adapter,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4147
				  (u32)(status) |
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4148
				  ((u32)(rx_desc->errors) << 24),
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4149
				  le16_to_cpu(rx_desc->csum), skb);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4150
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4151
		if (adapter->ecdev) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4152
			ecdev_receive(adapter->ecdev, skb->data, length);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4153
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4154
			// No need to detect link status as
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4155
			// long as frames are received: Reset watchdog.
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4156
			adapter->ec_watchdog_jiffies = jiffies;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4157
		} else {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4158
			e1000_receive_skb(adapter, status, rx_desc->special, skb);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4159
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4160
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4161
next_desc:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4162
		rx_desc->status = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4163
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4164
		/* return some buffers to hardware, one at a time is too slow */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4165
		if (unlikely(cleaned_count >= E1000_RX_BUFFER_WRITE)) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4166
			adapter->alloc_rx_buf(adapter, rx_ring, cleaned_count);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4167
			cleaned_count = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4168
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4169
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4170
		/* use prefetched values */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4171
		rx_desc = next_rxd;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4172
		buffer_info = next_buffer;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4173
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4174
	rx_ring->next_to_clean = i;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4175
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4176
	cleaned_count = E1000_DESC_UNUSED(rx_ring);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4177
	if (cleaned_count)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4178
		adapter->alloc_rx_buf(adapter, rx_ring, cleaned_count);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4179
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4180
	adapter->total_rx_packets += total_rx_packets;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4181
	adapter->total_rx_bytes += total_rx_bytes;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4182
	netdev->stats.rx_bytes += total_rx_bytes;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4183
	netdev->stats.rx_packets += total_rx_packets;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4184
	return cleaned;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4185
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4186
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4187
/**
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4188
 * e1000_alloc_jumbo_rx_buffers - Replace used jumbo receive buffers
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4189
 * @adapter: address of board private structure
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4190
 * @rx_ring: pointer to receive ring structure
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4191
 * @cleaned_count: number of buffers to allocate this pass
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4192
 **/
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4193
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4194
static void
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4195
e1000_alloc_jumbo_rx_buffers(struct e1000_adapter *adapter,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4196
                             struct e1000_rx_ring *rx_ring, int cleaned_count)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4197
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4198
	struct net_device *netdev = adapter->netdev;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4199
	struct pci_dev *pdev = adapter->pdev;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4200
	struct e1000_rx_desc *rx_desc;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4201
	struct e1000_buffer *buffer_info;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4202
	struct sk_buff *skb;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4203
	unsigned int i;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4204
	unsigned int bufsz = 256 - 16 /*for skb_reserve */ ;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4205
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4206
	i = rx_ring->next_to_use;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4207
	buffer_info = &rx_ring->buffer_info[i];
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4208
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4209
	while (cleaned_count--) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4210
		skb = buffer_info->skb;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4211
		if (skb) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4212
			skb_trim(skb, 0);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4213
			goto check_page;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4214
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4215
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4216
		skb = netdev_alloc_skb_ip_align(netdev, bufsz);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4217
		if (unlikely(!skb)) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4218
			/* Better luck next round */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4219
			adapter->alloc_rx_buff_failed++;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4220
			break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4221
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4222
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4223
		/* Fix for errata 23, can't cross 64kB boundary */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4224
		if (!e1000_check_64k_bound(adapter, skb->data, bufsz)) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4225
			struct sk_buff *oldskb = skb;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4226
			e_err(rx_err, "skb align check failed: %u bytes at "
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4227
			      "%p\n", bufsz, skb->data);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4228
			/* Try again, without freeing the previous */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4229
			skb = netdev_alloc_skb_ip_align(netdev, bufsz);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4230
			/* Failed allocation, critical failure */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4231
			if (!skb) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4232
				dev_kfree_skb(oldskb);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4233
				adapter->alloc_rx_buff_failed++;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4234
				break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4235
			}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4236
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4237
			if (!e1000_check_64k_bound(adapter, skb->data, bufsz)) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4238
				/* give up */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4239
				dev_kfree_skb(skb);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4240
				dev_kfree_skb(oldskb);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4241
				break; /* while (cleaned_count--) */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4242
			}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4243
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4244
			/* Use new allocation */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4245
			dev_kfree_skb(oldskb);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4246
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4247
		buffer_info->skb = skb;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4248
		buffer_info->length = adapter->rx_buffer_len;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4249
check_page:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4250
		/* allocate a new page if necessary */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4251
		if (!buffer_info->page) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4252
			buffer_info->page = alloc_page(GFP_ATOMIC);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4253
			if (unlikely(!buffer_info->page)) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4254
				adapter->alloc_rx_buff_failed++;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4255
				break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4256
			}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4257
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4258
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4259
		if (!buffer_info->dma) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4260
			buffer_info->dma = dma_map_page(&pdev->dev,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4261
			                                buffer_info->page, 0,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4262
							buffer_info->length,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4263
							DMA_FROM_DEVICE);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4264
			if (dma_mapping_error(&pdev->dev, buffer_info->dma)) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4265
				put_page(buffer_info->page);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4266
				dev_kfree_skb(skb);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4267
				buffer_info->page = NULL;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4268
				buffer_info->skb = NULL;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4269
				buffer_info->dma = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4270
				adapter->alloc_rx_buff_failed++;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4271
				break; /* while !buffer_info->skb */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4272
			}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4273
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4274
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4275
		rx_desc = E1000_RX_DESC(*rx_ring, i);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4276
		rx_desc->buffer_addr = cpu_to_le64(buffer_info->dma);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4277
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4278
		if (unlikely(++i == rx_ring->count))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4279
			i = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4280
		buffer_info = &rx_ring->buffer_info[i];
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4281
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4282
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4283
	if (likely(rx_ring->next_to_use != i)) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4284
		rx_ring->next_to_use = i;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4285
		if (unlikely(i-- == 0))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4286
			i = (rx_ring->count - 1);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4287
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4288
		/* Force memory writes to complete before letting h/w
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4289
		 * know there are new descriptors to fetch.  (Only
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4290
		 * applicable for weak-ordered memory model archs,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4291
		 * such as IA-64). */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4292
		wmb();
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4293
		writel(i, adapter->hw.hw_addr + rx_ring->rdt);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4294
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4295
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4296
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4297
/**
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4298
 * e1000_alloc_rx_buffers - Replace used receive buffers; legacy & extended
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4299
 * @adapter: address of board private structure
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4300
 **/
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4301
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4302
static void e1000_alloc_rx_buffers(struct e1000_adapter *adapter,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4303
				   struct e1000_rx_ring *rx_ring,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4304
				   int cleaned_count)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4305
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4306
	struct e1000_hw *hw = &adapter->hw;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4307
	struct net_device *netdev = adapter->netdev;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4308
	struct pci_dev *pdev = adapter->pdev;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4309
	struct e1000_rx_desc *rx_desc;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4310
	struct e1000_buffer *buffer_info;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4311
	struct sk_buff *skb;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4312
	unsigned int i;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4313
	unsigned int bufsz = adapter->rx_buffer_len;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4314
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4315
	i = rx_ring->next_to_use;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4316
	buffer_info = &rx_ring->buffer_info[i];
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4317
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4318
	while (cleaned_count--) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4319
		skb = buffer_info->skb;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4320
		if (skb) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4321
			skb_trim(skb, 0);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4322
			goto map_skb;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4323
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4324
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4325
		skb = netdev_alloc_skb_ip_align(netdev, bufsz);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4326
		if (unlikely(!skb)) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4327
			/* Better luck next round */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4328
			adapter->alloc_rx_buff_failed++;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4329
			break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4330
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4331
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4332
		/* Fix for errata 23, can't cross 64kB boundary */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4333
		if (!e1000_check_64k_bound(adapter, skb->data, bufsz)) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4334
			struct sk_buff *oldskb = skb;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4335
			e_err(rx_err, "skb align check failed: %u bytes at "
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4336
			      "%p\n", bufsz, skb->data);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4337
			/* Try again, without freeing the previous */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4338
			skb = netdev_alloc_skb_ip_align(netdev, bufsz);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4339
			/* Failed allocation, critical failure */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4340
			if (!skb) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4341
				dev_kfree_skb(oldskb);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4342
				adapter->alloc_rx_buff_failed++;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4343
				break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4344
			}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4345
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4346
			if (!e1000_check_64k_bound(adapter, skb->data, bufsz)) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4347
				/* give up */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4348
				dev_kfree_skb(skb);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4349
				dev_kfree_skb(oldskb);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4350
				adapter->alloc_rx_buff_failed++;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4351
				break; /* while !buffer_info->skb */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4352
			}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4353
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4354
			/* Use new allocation */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4355
			dev_kfree_skb(oldskb);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4356
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4357
		buffer_info->skb = skb;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4358
		buffer_info->length = adapter->rx_buffer_len;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4359
map_skb:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4360
		buffer_info->dma = dma_map_single(&pdev->dev,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4361
						  skb->data,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4362
						  buffer_info->length,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4363
						  DMA_FROM_DEVICE);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4364
		if (dma_mapping_error(&pdev->dev, buffer_info->dma)) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4365
			dev_kfree_skb(skb);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4366
			buffer_info->skb = NULL;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4367
			buffer_info->dma = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4368
			adapter->alloc_rx_buff_failed++;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4369
			break; /* while !buffer_info->skb */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4370
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4371
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4372
		/*
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4373
		 * XXX if it was allocated cleanly it will never map to a
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4374
		 * boundary crossing
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4375
		 */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4376
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4377
		/* Fix for errata 23, can't cross 64kB boundary */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4378
		if (!e1000_check_64k_bound(adapter,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4379
					(void *)(unsigned long)buffer_info->dma,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4380
					adapter->rx_buffer_len)) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4381
			e_err(rx_err, "dma align check failed: %u bytes at "
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4382
			      "%p\n", adapter->rx_buffer_len,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4383
			      (void *)(unsigned long)buffer_info->dma);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4384
			dev_kfree_skb(skb);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4385
			buffer_info->skb = NULL;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4386
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4387
			dma_unmap_single(&pdev->dev, buffer_info->dma,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4388
					 adapter->rx_buffer_len,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4389
					 DMA_FROM_DEVICE);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4390
			buffer_info->dma = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4391
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4392
			adapter->alloc_rx_buff_failed++;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4393
			break; /* while !buffer_info->skb */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4394
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4395
		rx_desc = E1000_RX_DESC(*rx_ring, i);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4396
		rx_desc->buffer_addr = cpu_to_le64(buffer_info->dma);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4397
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4398
		if (unlikely(++i == rx_ring->count))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4399
			i = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4400
		buffer_info = &rx_ring->buffer_info[i];
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4401
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4402
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4403
	if (likely(rx_ring->next_to_use != i)) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4404
		rx_ring->next_to_use = i;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4405
		if (unlikely(i-- == 0))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4406
			i = (rx_ring->count - 1);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4407
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4408
		/* Force memory writes to complete before letting h/w
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4409
		 * know there are new descriptors to fetch.  (Only
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4410
		 * applicable for weak-ordered memory model archs,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4411
		 * such as IA-64). */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4412
		wmb();
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4413
		writel(i, hw->hw_addr + rx_ring->rdt);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4414
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4415
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4416
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4417
/**
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4418
 * e1000_smartspeed - Workaround for SmartSpeed on 82541 and 82547 controllers.
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4419
 * @adapter:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4420
 **/
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4421
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4422
static void e1000_smartspeed(struct e1000_adapter *adapter)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4423
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4424
	struct e1000_hw *hw = &adapter->hw;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4425
	u16 phy_status;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4426
	u16 phy_ctrl;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4427
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4428
	if ((hw->phy_type != e1000_phy_igp) || !hw->autoneg ||
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4429
	   !(hw->autoneg_advertised & ADVERTISE_1000_FULL))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4430
		return;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4431
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4432
	if (adapter->smartspeed == 0) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4433
		/* If Master/Slave config fault is asserted twice,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4434
		 * we assume back-to-back */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4435
		e1000_read_phy_reg(hw, PHY_1000T_STATUS, &phy_status);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4436
		if (!(phy_status & SR_1000T_MS_CONFIG_FAULT)) return;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4437
		e1000_read_phy_reg(hw, PHY_1000T_STATUS, &phy_status);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4438
		if (!(phy_status & SR_1000T_MS_CONFIG_FAULT)) return;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4439
		e1000_read_phy_reg(hw, PHY_1000T_CTRL, &phy_ctrl);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4440
		if (phy_ctrl & CR_1000T_MS_ENABLE) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4441
			phy_ctrl &= ~CR_1000T_MS_ENABLE;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4442
			e1000_write_phy_reg(hw, PHY_1000T_CTRL,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4443
					    phy_ctrl);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4444
			adapter->smartspeed++;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4445
			if (!e1000_phy_setup_autoneg(hw) &&
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4446
			   !e1000_read_phy_reg(hw, PHY_CTRL,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4447
				   	       &phy_ctrl)) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4448
				phy_ctrl |= (MII_CR_AUTO_NEG_EN |
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4449
					     MII_CR_RESTART_AUTO_NEG);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4450
				e1000_write_phy_reg(hw, PHY_CTRL,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4451
						    phy_ctrl);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4452
			}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4453
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4454
		return;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4455
	} else if (adapter->smartspeed == E1000_SMARTSPEED_DOWNSHIFT) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4456
		/* If still no link, perhaps using 2/3 pair cable */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4457
		e1000_read_phy_reg(hw, PHY_1000T_CTRL, &phy_ctrl);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4458
		phy_ctrl |= CR_1000T_MS_ENABLE;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4459
		e1000_write_phy_reg(hw, PHY_1000T_CTRL, phy_ctrl);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4460
		if (!e1000_phy_setup_autoneg(hw) &&
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4461
		   !e1000_read_phy_reg(hw, PHY_CTRL, &phy_ctrl)) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4462
			phy_ctrl |= (MII_CR_AUTO_NEG_EN |
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4463
				     MII_CR_RESTART_AUTO_NEG);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4464
			e1000_write_phy_reg(hw, PHY_CTRL, phy_ctrl);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4465
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4466
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4467
	/* Restart process after E1000_SMARTSPEED_MAX iterations */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4468
	if (adapter->smartspeed++ == E1000_SMARTSPEED_MAX)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4469
		adapter->smartspeed = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4470
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4471
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4472
/**
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4473
 * e1000_ioctl -
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4474
 * @netdev:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4475
 * @ifreq:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4476
 * @cmd:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4477
 **/
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4478
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4479
static int e1000_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4480
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4481
	switch (cmd) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4482
	case SIOCGMIIPHY:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4483
	case SIOCGMIIREG:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4484
	case SIOCSMIIREG:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4485
		return e1000_mii_ioctl(netdev, ifr, cmd);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4486
	default:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4487
		return -EOPNOTSUPP;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4488
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4489
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4490
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4491
/**
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4492
 * e1000_mii_ioctl -
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4493
 * @netdev:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4494
 * @ifreq:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4495
 * @cmd:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4496
 **/
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4497
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4498
static int e1000_mii_ioctl(struct net_device *netdev, struct ifreq *ifr,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4499
			   int cmd)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4500
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4501
	struct e1000_adapter *adapter = netdev_priv(netdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4502
	struct e1000_hw *hw = &adapter->hw;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4503
	struct mii_ioctl_data *data = if_mii(ifr);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4504
	int retval;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4505
	u16 mii_reg;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4506
	u16 spddplx;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4507
	unsigned long flags;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4508
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4509
	if (hw->media_type != e1000_media_type_copper)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4510
		return -EOPNOTSUPP;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4511
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4512
	switch (cmd) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4513
	case SIOCGMIIPHY:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4514
		data->phy_id = hw->phy_addr;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4515
		break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4516
	case SIOCGMIIREG:
2289
1c75f52e5c0f Minor: Indentation and braces.
Florian Pose <fp@igh-essen.com>
parents: 2233
diff changeset
  4517
		if (adapter->ecdev) {
1c75f52e5c0f Minor: Indentation and braces.
Florian Pose <fp@igh-essen.com>
parents: 2233
diff changeset
  4518
			return -EPERM;
1c75f52e5c0f Minor: Indentation and braces.
Florian Pose <fp@igh-essen.com>
parents: 2233
diff changeset
  4519
		}
2202
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4520
		spin_lock_irqsave(&adapter->stats_lock, flags);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4521
		if (e1000_read_phy_reg(hw, data->reg_num & 0x1F,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4522
				   &data->val_out)) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4523
			spin_unlock_irqrestore(&adapter->stats_lock, flags);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4524
			return -EIO;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4525
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4526
		spin_unlock_irqrestore(&adapter->stats_lock, flags);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4527
		break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4528
	case SIOCSMIIREG:
2289
1c75f52e5c0f Minor: Indentation and braces.
Florian Pose <fp@igh-essen.com>
parents: 2233
diff changeset
  4529
		if (adapter->ecdev) {
1c75f52e5c0f Minor: Indentation and braces.
Florian Pose <fp@igh-essen.com>
parents: 2233
diff changeset
  4530
			return -EPERM;
1c75f52e5c0f Minor: Indentation and braces.
Florian Pose <fp@igh-essen.com>
parents: 2233
diff changeset
  4531
		}
2202
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4532
		if (data->reg_num & ~(0x1F))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4533
			return -EFAULT;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4534
		mii_reg = data->val_in;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4535
		spin_lock_irqsave(&adapter->stats_lock, flags);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4536
		if (e1000_write_phy_reg(hw, data->reg_num,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4537
					mii_reg)) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4538
			spin_unlock_irqrestore(&adapter->stats_lock, flags);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4539
			return -EIO;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4540
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4541
		spin_unlock_irqrestore(&adapter->stats_lock, flags);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4542
		if (hw->media_type == e1000_media_type_copper) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4543
			switch (data->reg_num) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4544
			case PHY_CTRL:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4545
				if (mii_reg & MII_CR_POWER_DOWN)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4546
					break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4547
				if (mii_reg & MII_CR_AUTO_NEG_EN) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4548
					hw->autoneg = 1;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4549
					hw->autoneg_advertised = 0x2F;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4550
				} else {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4551
					if (mii_reg & 0x40)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4552
						spddplx = SPEED_1000;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4553
					else if (mii_reg & 0x2000)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4554
						spddplx = SPEED_100;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4555
					else
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4556
						spddplx = SPEED_10;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4557
					spddplx += (mii_reg & 0x100)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4558
						   ? DUPLEX_FULL :
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4559
						   DUPLEX_HALF;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4560
					retval = e1000_set_spd_dplx(adapter,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4561
								    spddplx);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4562
					if (retval)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4563
						return retval;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4564
				}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4565
				if (netif_running(adapter->netdev))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4566
					e1000_reinit_locked(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4567
				else
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4568
					e1000_reset(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4569
				break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4570
			case M88E1000_PHY_SPEC_CTRL:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4571
			case M88E1000_EXT_PHY_SPEC_CTRL:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4572
				if (e1000_phy_reset(hw))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4573
					return -EIO;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4574
				break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4575
			}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4576
		} else {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4577
			switch (data->reg_num) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4578
			case PHY_CTRL:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4579
				if (mii_reg & MII_CR_POWER_DOWN)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4580
					break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4581
				if (netif_running(adapter->netdev))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4582
					e1000_reinit_locked(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4583
				else
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4584
					e1000_reset(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4585
				break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4586
			}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4587
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4588
		break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4589
	default:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4590
		return -EOPNOTSUPP;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4591
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4592
	return E1000_SUCCESS;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4593
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4594
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4595
void e1000_pci_set_mwi(struct e1000_hw *hw)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4596
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4597
	struct e1000_adapter *adapter = hw->back;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4598
	int ret_val = pci_set_mwi(adapter->pdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4599
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4600
	if (ret_val)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4601
		e_err(probe, "Error in setting MWI\n");
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4602
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4603
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4604
void e1000_pci_clear_mwi(struct e1000_hw *hw)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4605
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4606
	struct e1000_adapter *adapter = hw->back;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4607
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4608
	pci_clear_mwi(adapter->pdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4609
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4610
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4611
int e1000_pcix_get_mmrbc(struct e1000_hw *hw)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4612
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4613
	struct e1000_adapter *adapter = hw->back;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4614
	return pcix_get_mmrbc(adapter->pdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4615
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4616
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4617
void e1000_pcix_set_mmrbc(struct e1000_hw *hw, int mmrbc)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4618
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4619
	struct e1000_adapter *adapter = hw->back;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4620
	pcix_set_mmrbc(adapter->pdev, mmrbc);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4621
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4622
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4623
void e1000_io_write(struct e1000_hw *hw, unsigned long port, u32 value)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4624
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4625
	outl(value, port);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4626
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4627
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4628
static void e1000_vlan_rx_register(struct net_device *netdev,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4629
				   struct vlan_group *grp)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4630
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4631
	struct e1000_adapter *adapter = netdev_priv(netdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4632
	struct e1000_hw *hw = &adapter->hw;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4633
	u32 ctrl, rctl;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4634
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4635
	if (!test_bit(__E1000_DOWN, &adapter->flags))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4636
		e1000_irq_disable(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4637
	adapter->vlgrp = grp;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4638
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4639
	if (grp) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4640
		/* enable VLAN tag insert/strip */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4641
		ctrl = er32(CTRL);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4642
		ctrl |= E1000_CTRL_VME;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4643
		ew32(CTRL, ctrl);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4644
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4645
		/* enable VLAN receive filtering */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4646
		rctl = er32(RCTL);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4647
		rctl &= ~E1000_RCTL_CFIEN;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4648
		if (!(netdev->flags & IFF_PROMISC))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4649
			rctl |= E1000_RCTL_VFE;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4650
		ew32(RCTL, rctl);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4651
		e1000_update_mng_vlan(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4652
	} else {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4653
		/* disable VLAN tag insert/strip */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4654
		ctrl = er32(CTRL);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4655
		ctrl &= ~E1000_CTRL_VME;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4656
		ew32(CTRL, ctrl);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4657
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4658
		/* disable VLAN receive filtering */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4659
		rctl = er32(RCTL);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4660
		rctl &= ~E1000_RCTL_VFE;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4661
		ew32(RCTL, rctl);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4662
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4663
		if (adapter->mng_vlan_id != (u16)E1000_MNG_VLAN_NONE) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4664
			e1000_vlan_rx_kill_vid(netdev, adapter->mng_vlan_id);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4665
			adapter->mng_vlan_id = E1000_MNG_VLAN_NONE;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4666
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4667
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4668
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4669
	if (!test_bit(__E1000_DOWN, &adapter->flags))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4670
		e1000_irq_enable(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4671
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4672
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4673
static void e1000_vlan_rx_add_vid(struct net_device *netdev, u16 vid)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4674
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4675
	struct e1000_adapter *adapter = netdev_priv(netdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4676
	struct e1000_hw *hw = &adapter->hw;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4677
	u32 vfta, index;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4678
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4679
	if ((hw->mng_cookie.status &
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4680
	     E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT) &&
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4681
	    (vid == adapter->mng_vlan_id))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4682
		return;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4683
	/* add VID to filter table */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4684
	index = (vid >> 5) & 0x7F;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4685
	vfta = E1000_READ_REG_ARRAY(hw, VFTA, index);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4686
	vfta |= (1 << (vid & 0x1F));
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4687
	e1000_write_vfta(hw, index, vfta);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4688
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4689
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4690
static void e1000_vlan_rx_kill_vid(struct net_device *netdev, u16 vid)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4691
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4692
	struct e1000_adapter *adapter = netdev_priv(netdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4693
	struct e1000_hw *hw = &adapter->hw;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4694
	u32 vfta, index;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4695
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4696
	if (!test_bit(__E1000_DOWN, &adapter->flags))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4697
		e1000_irq_disable(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4698
	vlan_group_set_device(adapter->vlgrp, vid, NULL);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4699
	if (!test_bit(__E1000_DOWN, &adapter->flags))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4700
		e1000_irq_enable(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4701
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4702
	/* remove VID from filter table */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4703
	index = (vid >> 5) & 0x7F;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4704
	vfta = E1000_READ_REG_ARRAY(hw, VFTA, index);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4705
	vfta &= ~(1 << (vid & 0x1F));
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4706
	e1000_write_vfta(hw, index, vfta);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4707
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4708
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4709
static void e1000_restore_vlan(struct e1000_adapter *adapter)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4710
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4711
	e1000_vlan_rx_register(adapter->netdev, adapter->vlgrp);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4712
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4713
	if (adapter->vlgrp) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4714
		u16 vid;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4715
		for (vid = 0; vid < VLAN_N_VID; vid++) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4716
			if (!vlan_group_get_device(adapter->vlgrp, vid))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4717
				continue;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4718
			e1000_vlan_rx_add_vid(adapter->netdev, vid);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4719
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4720
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4721
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4722
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4723
int e1000_set_spd_dplx(struct e1000_adapter *adapter, u16 spddplx)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4724
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4725
	struct e1000_hw *hw = &adapter->hw;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4726
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4727
	hw->autoneg = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4728
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4729
	/* Fiber NICs only allow 1000 gbps Full duplex */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4730
	if ((hw->media_type == e1000_media_type_fiber) &&
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4731
		spddplx != (SPEED_1000 + DUPLEX_FULL)) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4732
		e_err(probe, "Unsupported Speed/Duplex configuration\n");
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4733
		return -EINVAL;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4734
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4735
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4736
	switch (spddplx) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4737
	case SPEED_10 + DUPLEX_HALF:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4738
		hw->forced_speed_duplex = e1000_10_half;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4739
		break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4740
	case SPEED_10 + DUPLEX_FULL:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4741
		hw->forced_speed_duplex = e1000_10_full;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4742
		break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4743
	case SPEED_100 + DUPLEX_HALF:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4744
		hw->forced_speed_duplex = e1000_100_half;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4745
		break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4746
	case SPEED_100 + DUPLEX_FULL:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4747
		hw->forced_speed_duplex = e1000_100_full;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4748
		break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4749
	case SPEED_1000 + DUPLEX_FULL:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4750
		hw->autoneg = 1;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4751
		hw->autoneg_advertised = ADVERTISE_1000_FULL;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4752
		break;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4753
	case SPEED_1000 + DUPLEX_HALF: /* not supported */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4754
	default:
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4755
		e_err(probe, "Unsupported Speed/Duplex configuration\n");
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4756
		return -EINVAL;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4757
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4758
	return 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4759
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4760
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4761
static int __e1000_shutdown(struct pci_dev *pdev, bool *enable_wake)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4762
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4763
	struct net_device *netdev = pci_get_drvdata(pdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4764
	struct e1000_adapter *adapter = netdev_priv(netdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4765
	struct e1000_hw *hw = &adapter->hw;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4766
	u32 ctrl, ctrl_ext, rctl, status;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4767
	u32 wufc = adapter->wol;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4768
#ifdef CONFIG_PM
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4769
	int retval = 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4770
#endif
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4771
2289
1c75f52e5c0f Minor: Indentation and braces.
Florian Pose <fp@igh-essen.com>
parents: 2233
diff changeset
  4772
	if (adapter->ecdev) {
2202
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4773
		return -EBUSY;
2289
1c75f52e5c0f Minor: Indentation and braces.
Florian Pose <fp@igh-essen.com>
parents: 2233
diff changeset
  4774
	}
2202
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4775
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4776
	netif_device_detach(netdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4777
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4778
	if (netif_running(netdev)) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4779
		WARN_ON(test_bit(__E1000_RESETTING, &adapter->flags));
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4780
		e1000_down(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4781
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4782
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4783
#ifdef CONFIG_PM
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4784
	retval = pci_save_state(pdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4785
	if (retval)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4786
		return retval;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4787
#endif
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4788
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4789
	status = er32(STATUS);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4790
	if (status & E1000_STATUS_LU)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4791
		wufc &= ~E1000_WUFC_LNKC;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4792
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4793
	if (wufc) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4794
		e1000_setup_rctl(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4795
		e1000_set_rx_mode(netdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4796
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4797
		/* turn on all-multi mode if wake on multicast is enabled */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4798
		if (wufc & E1000_WUFC_MC) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4799
			rctl = er32(RCTL);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4800
			rctl |= E1000_RCTL_MPE;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4801
			ew32(RCTL, rctl);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4802
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4803
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4804
		if (hw->mac_type >= e1000_82540) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4805
			ctrl = er32(CTRL);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4806
			/* advertise wake from D3Cold */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4807
			#define E1000_CTRL_ADVD3WUC 0x00100000
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4808
			/* phy power management enable */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4809
			#define E1000_CTRL_EN_PHY_PWR_MGMT 0x00200000
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4810
			ctrl |= E1000_CTRL_ADVD3WUC |
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4811
				E1000_CTRL_EN_PHY_PWR_MGMT;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4812
			ew32(CTRL, ctrl);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4813
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4814
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4815
		if (hw->media_type == e1000_media_type_fiber ||
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4816
		    hw->media_type == e1000_media_type_internal_serdes) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4817
			/* keep the laser running in D3 */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4818
			ctrl_ext = er32(CTRL_EXT);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4819
			ctrl_ext |= E1000_CTRL_EXT_SDP7_DATA;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4820
			ew32(CTRL_EXT, ctrl_ext);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4821
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4822
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4823
		ew32(WUC, E1000_WUC_PME_EN);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4824
		ew32(WUFC, wufc);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4825
	} else {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4826
		ew32(WUC, 0);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4827
		ew32(WUFC, 0);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4828
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4829
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4830
	e1000_release_manageability(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4831
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4832
	*enable_wake = !!wufc;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4833
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4834
	/* make sure adapter isn't asleep if manageability is enabled */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4835
	if (adapter->en_mng_pt)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4836
		*enable_wake = true;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4837
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4838
	if (netif_running(netdev))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4839
		e1000_free_irq(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4840
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4841
	pci_disable_device(pdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4842
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4843
	return 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4844
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4845
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4846
#ifdef CONFIG_PM
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4847
static int e1000_suspend(struct pci_dev *pdev, pm_message_t state)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4848
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4849
	int retval;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4850
	bool wake;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4851
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4852
	retval = __e1000_shutdown(pdev, &wake);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4853
	if (retval)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4854
		return retval;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4855
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4856
	if (wake) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4857
		pci_prepare_to_sleep(pdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4858
	} else {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4859
		pci_wake_from_d3(pdev, false);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4860
		pci_set_power_state(pdev, PCI_D3hot);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4861
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4862
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4863
	return 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4864
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4865
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4866
static int e1000_resume(struct pci_dev *pdev)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4867
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4868
	struct net_device *netdev = pci_get_drvdata(pdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4869
	struct e1000_adapter *adapter = netdev_priv(netdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4870
	struct e1000_hw *hw = &adapter->hw;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4871
	u32 err;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4872
2289
1c75f52e5c0f Minor: Indentation and braces.
Florian Pose <fp@igh-essen.com>
parents: 2233
diff changeset
  4873
	if (adapter->ecdev) {
2202
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4874
		return -EBUSY;
2289
1c75f52e5c0f Minor: Indentation and braces.
Florian Pose <fp@igh-essen.com>
parents: 2233
diff changeset
  4875
	}
2202
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4876
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4877
	pci_set_power_state(pdev, PCI_D0);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4878
	pci_restore_state(pdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4879
	pci_save_state(pdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4880
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4881
	if (adapter->need_ioport)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4882
		err = pci_enable_device(pdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4883
	else
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4884
		err = pci_enable_device_mem(pdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4885
	if (err) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4886
		pr_err("Cannot enable PCI device from suspend\n");
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4887
		return err;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4888
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4889
	pci_set_master(pdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4890
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4891
	pci_enable_wake(pdev, PCI_D3hot, 0);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4892
	pci_enable_wake(pdev, PCI_D3cold, 0);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4893
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4894
	if (netif_running(netdev)) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4895
		err = e1000_request_irq(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4896
		if (err)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4897
			return err;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4898
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4899
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4900
	e1000_power_up_phy(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4901
	e1000_reset(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4902
	ew32(WUS, ~0);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4903
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4904
	e1000_init_manageability(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4905
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4906
	if (netif_running(netdev))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4907
		e1000_up(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4908
2289
1c75f52e5c0f Minor: Indentation and braces.
Florian Pose <fp@igh-essen.com>
parents: 2233
diff changeset
  4909
	if (!adapter->ecdev) {
1c75f52e5c0f Minor: Indentation and braces.
Florian Pose <fp@igh-essen.com>
parents: 2233
diff changeset
  4910
		netif_device_attach(netdev);
1c75f52e5c0f Minor: Indentation and braces.
Florian Pose <fp@igh-essen.com>
parents: 2233
diff changeset
  4911
	}
2202
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4912
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4913
	return 0;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4914
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4915
#endif
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4916
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4917
static void e1000_shutdown(struct pci_dev *pdev)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4918
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4919
	bool wake;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4920
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4921
	__e1000_shutdown(pdev, &wake);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4922
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4923
	if (system_state == SYSTEM_POWER_OFF) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4924
		pci_wake_from_d3(pdev, wake);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4925
		pci_set_power_state(pdev, PCI_D3hot);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4926
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4927
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4928
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4929
#ifdef CONFIG_NET_POLL_CONTROLLER
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4930
/*
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4931
 * Polling 'interrupt' - used by things like netconsole to send skbs
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4932
 * without having to re-enable interrupts. It's not called while
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4933
 * the interrupt routine is executing.
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4934
 */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4935
static void e1000_netpoll(struct net_device *netdev)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4936
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4937
	struct e1000_adapter *adapter = netdev_priv(netdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4938
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4939
	disable_irq(adapter->pdev->irq);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4940
	e1000_intr(adapter->pdev->irq, netdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4941
	enable_irq(adapter->pdev->irq);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4942
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4943
#endif
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4944
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4945
/**
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4946
 * e1000_io_error_detected - called when PCI error is detected
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4947
 * @pdev: Pointer to PCI device
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4948
 * @state: The current pci connection state
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4949
 *
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4950
 * This function is called after a PCI bus error affecting
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4951
 * this device has been detected.
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4952
 */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4953
static pci_ers_result_t e1000_io_error_detected(struct pci_dev *pdev,
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4954
						pci_channel_state_t state)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4955
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4956
	struct net_device *netdev = pci_get_drvdata(pdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4957
	struct e1000_adapter *adapter = netdev_priv(netdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4958
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4959
	netif_device_detach(netdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4960
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4961
	if (state == pci_channel_io_perm_failure)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4962
		return PCI_ERS_RESULT_DISCONNECT;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4963
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4964
	if (netif_running(netdev))
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4965
		e1000_down(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4966
	pci_disable_device(pdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4967
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4968
	/* Request a slot slot reset. */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4969
	return PCI_ERS_RESULT_NEED_RESET;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4970
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4971
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4972
/**
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4973
 * e1000_io_slot_reset - called after the pci bus has been reset.
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4974
 * @pdev: Pointer to PCI device
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4975
 *
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4976
 * Restart the card from scratch, as if from a cold-boot. Implementation
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4977
 * resembles the first-half of the e1000_resume routine.
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4978
 */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4979
static pci_ers_result_t e1000_io_slot_reset(struct pci_dev *pdev)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4980
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4981
	struct net_device *netdev = pci_get_drvdata(pdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4982
	struct e1000_adapter *adapter = netdev_priv(netdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4983
	struct e1000_hw *hw = &adapter->hw;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4984
	int err;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4985
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4986
	if (adapter->need_ioport)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4987
		err = pci_enable_device(pdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4988
	else
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4989
		err = pci_enable_device_mem(pdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4990
	if (err) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4991
		pr_err("Cannot re-enable PCI device after reset.\n");
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4992
		return PCI_ERS_RESULT_DISCONNECT;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4993
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4994
	pci_set_master(pdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4995
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4996
	pci_enable_wake(pdev, PCI_D3hot, 0);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4997
	pci_enable_wake(pdev, PCI_D3cold, 0);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4998
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4999
	e1000_reset(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  5000
	ew32(WUS, ~0);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  5001
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  5002
	return PCI_ERS_RESULT_RECOVERED;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  5003
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  5004
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  5005
/**
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  5006
 * e1000_io_resume - called when traffic can start flowing again.
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  5007
 * @pdev: Pointer to PCI device
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  5008
 *
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  5009
 * This callback is called when the error recovery driver tells us that
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  5010
 * its OK to resume normal operation. Implementation resembles the
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  5011
 * second-half of the e1000_resume routine.
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  5012
 */
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  5013
static void e1000_io_resume(struct pci_dev *pdev)
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  5014
{
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  5015
	struct net_device *netdev = pci_get_drvdata(pdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  5016
	struct e1000_adapter *adapter = netdev_priv(netdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  5017
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  5018
	e1000_init_manageability(adapter);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  5019
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  5020
	if (netif_running(netdev)) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  5021
		if (e1000_up(adapter)) {
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  5022
			pr_info("can't bring device back up after reset\n");
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  5023
			return;
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  5024
		}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  5025
	}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  5026
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  5027
	netif_device_attach(netdev);
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  5028
}
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  5029
14728d0c4a66 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  5030
/* e1000_main.c */