devices/e1000/e1000_main-2.6.37-orig.c
author Philipp Weyer <pw@igh-essen.com>
Fri, 18 Aug 2017 12:30:16 +0200
changeset 2679 33b922ec1871
parent 2173 312ab8ed8284
permissions -rw-r--r--
Fixed lib include paths
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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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*******************************************************************************/
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#include "e1000.h"
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#include <net/ip6_checksum.h>
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char e1000_driver_name[] = "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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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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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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};
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MODULE_AUTHOR("Intel Corporation, <linux.nics@intel.com>");
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MODULE_DESCRIPTION("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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	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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parents:
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   266
}
312ab8ed8284 Added e1000 driver for 2.6.37.
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   267
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
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   268
module_exit(e1000_exit_module);
312ab8ed8284 Added e1000 driver for 2.6.37.
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   269
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
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   270
static int e1000_request_irq(struct e1000_adapter *adapter)
312ab8ed8284 Added e1000 driver for 2.6.37.
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   271
{
312ab8ed8284 Added e1000 driver for 2.6.37.
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   272
	struct net_device *netdev = adapter->netdev;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
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   273
	irq_handler_t handler = e1000_intr;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   274
	int irq_flags = IRQF_SHARED;
312ab8ed8284 Added e1000 driver for 2.6.37.
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parents:
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   275
	int err;
312ab8ed8284 Added e1000 driver for 2.6.37.
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parents:
diff changeset
   276
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   277
	err = request_irq(adapter->pdev->irq, handler, irq_flags, netdev->name,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   278
	                  netdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   279
	if (err) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
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   280
		e_err(probe, "Unable to allocate interrupt Error: %d\n", err);
312ab8ed8284 Added e1000 driver for 2.6.37.
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parents:
diff changeset
   281
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
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   282
312ab8ed8284 Added e1000 driver for 2.6.37.
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parents:
diff changeset
   283
	return err;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   284
}
312ab8ed8284 Added e1000 driver for 2.6.37.
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parents:
diff changeset
   285
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   286
static void e1000_free_irq(struct e1000_adapter *adapter)
312ab8ed8284 Added e1000 driver for 2.6.37.
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parents:
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   287
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   288
	struct net_device *netdev = adapter->netdev;
312ab8ed8284 Added e1000 driver for 2.6.37.
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parents:
diff changeset
   289
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   290
	free_irq(adapter->pdev->irq, netdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   291
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
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   292
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   293
/**
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   294
 * e1000_irq_disable - Mask off interrupt generation on the NIC
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   295
 * @adapter: board private structure
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
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   296
 **/
312ab8ed8284 Added e1000 driver for 2.6.37.
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parents:
diff changeset
   297
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
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   298
static void e1000_irq_disable(struct e1000_adapter *adapter)
312ab8ed8284 Added e1000 driver for 2.6.37.
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parents:
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   299
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
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   300
	struct e1000_hw *hw = &adapter->hw;
312ab8ed8284 Added e1000 driver for 2.6.37.
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parents:
diff changeset
   301
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   302
	ew32(IMC, ~0);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   303
	E1000_WRITE_FLUSH();
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   304
	synchronize_irq(adapter->pdev->irq);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   305
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   306
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   307
/**
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   308
 * e1000_irq_enable - Enable default interrupt generation settings
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   309
 * @adapter: board private structure
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
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   310
 **/
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   311
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   312
static void e1000_irq_enable(struct e1000_adapter *adapter)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   313
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   314
	struct e1000_hw *hw = &adapter->hw;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   315
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   316
	ew32(IMS, IMS_ENABLE_MASK);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   317
	E1000_WRITE_FLUSH();
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   318
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   319
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   320
static void e1000_update_mng_vlan(struct e1000_adapter *adapter)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   321
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   322
	struct e1000_hw *hw = &adapter->hw;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   323
	struct net_device *netdev = adapter->netdev;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   324
	u16 vid = hw->mng_cookie.vlan_id;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   325
	u16 old_vid = adapter->mng_vlan_id;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   326
	if (adapter->vlgrp) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   327
		if (!vlan_group_get_device(adapter->vlgrp, vid)) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   328
			if (hw->mng_cookie.status &
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   329
				E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   330
				e1000_vlan_rx_add_vid(netdev, vid);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   331
				adapter->mng_vlan_id = vid;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   332
			} else
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   333
				adapter->mng_vlan_id = E1000_MNG_VLAN_NONE;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   334
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   335
			if ((old_vid != (u16)E1000_MNG_VLAN_NONE) &&
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   336
					(vid != old_vid) &&
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   337
			    !vlan_group_get_device(adapter->vlgrp, old_vid))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   338
				e1000_vlan_rx_kill_vid(netdev, old_vid);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   339
		} else
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   340
			adapter->mng_vlan_id = vid;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   341
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   342
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   343
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   344
static void e1000_init_manageability(struct e1000_adapter *adapter)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   345
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   346
	struct e1000_hw *hw = &adapter->hw;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   347
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   348
	if (adapter->en_mng_pt) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   349
		u32 manc = er32(MANC);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   350
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   351
		/* disable hardware interception of ARP */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   352
		manc &= ~(E1000_MANC_ARP_EN);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   353
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   354
		ew32(MANC, manc);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   355
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   356
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   357
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   358
static void e1000_release_manageability(struct e1000_adapter *adapter)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   359
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   360
	struct e1000_hw *hw = &adapter->hw;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   361
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   362
	if (adapter->en_mng_pt) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   363
		u32 manc = er32(MANC);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   364
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   365
		/* re-enable hardware interception of ARP */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   366
		manc |= E1000_MANC_ARP_EN;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   367
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   368
		ew32(MANC, manc);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   369
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   370
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   371
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   372
/**
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   373
 * e1000_configure - configure the hardware for RX and TX
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   374
 * @adapter = private board structure
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   375
 **/
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   376
static void e1000_configure(struct e1000_adapter *adapter)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   377
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   378
	struct net_device *netdev = adapter->netdev;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   379
	int i;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   380
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   381
	e1000_set_rx_mode(netdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   382
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   383
	e1000_restore_vlan(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   384
	e1000_init_manageability(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   385
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   386
	e1000_configure_tx(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   387
	e1000_setup_rctl(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   388
	e1000_configure_rx(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   389
	/* call E1000_DESC_UNUSED which always leaves
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   390
	 * at least 1 descriptor unused to make sure
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   391
	 * next_to_use != next_to_clean */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   392
	for (i = 0; i < adapter->num_rx_queues; i++) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   393
		struct e1000_rx_ring *ring = &adapter->rx_ring[i];
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   394
		adapter->alloc_rx_buf(adapter, ring,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   395
		                      E1000_DESC_UNUSED(ring));
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   396
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   397
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   398
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   399
int e1000_up(struct e1000_adapter *adapter)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   400
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   401
	struct e1000_hw *hw = &adapter->hw;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   402
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   403
	/* hardware has been reset, we need to reload some things */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   404
	e1000_configure(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   405
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   406
	clear_bit(__E1000_DOWN, &adapter->flags);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   407
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   408
	napi_enable(&adapter->napi);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   409
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   410
	e1000_irq_enable(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   411
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   412
	netif_wake_queue(adapter->netdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   413
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   414
	/* fire a link change interrupt to start the watchdog */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   415
	ew32(ICS, E1000_ICS_LSC);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   416
	return 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   417
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   418
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   419
/**
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   420
 * e1000_power_up_phy - restore link in case the phy was powered down
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   421
 * @adapter: address of board private structure
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   422
 *
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   423
 * The phy may be powered down to save power and turn off link when the
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   424
 * driver is unloaded and wake on lan is not enabled (among others)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   425
 * *** this routine MUST be followed by a call to e1000_reset ***
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   426
 *
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   427
 **/
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   428
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   429
void e1000_power_up_phy(struct e1000_adapter *adapter)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   430
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   431
	struct e1000_hw *hw = &adapter->hw;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   432
	u16 mii_reg = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   433
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   434
	/* Just clear the power down bit to wake the phy back up */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   435
	if (hw->media_type == e1000_media_type_copper) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   436
		/* according to the manual, the phy will retain its
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   437
		 * settings across a power-down/up cycle */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   438
		e1000_read_phy_reg(hw, PHY_CTRL, &mii_reg);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   439
		mii_reg &= ~MII_CR_POWER_DOWN;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   440
		e1000_write_phy_reg(hw, PHY_CTRL, mii_reg);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   441
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   442
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   443
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   444
static void e1000_power_down_phy(struct e1000_adapter *adapter)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   445
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   446
	struct e1000_hw *hw = &adapter->hw;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   447
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   448
	/* Power down the PHY so no link is implied when interface is down *
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   449
	 * The PHY cannot be powered down if any of the following is true *
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   450
	 * (a) WoL is enabled
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   451
	 * (b) AMT is active
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   452
	 * (c) SoL/IDER session is active */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   453
	if (!adapter->wol && hw->mac_type >= e1000_82540 &&
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   454
	   hw->media_type == e1000_media_type_copper) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   455
		u16 mii_reg = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   456
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   457
		switch (hw->mac_type) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   458
		case e1000_82540:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   459
		case e1000_82545:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   460
		case e1000_82545_rev_3:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   461
		case e1000_82546:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   462
		case e1000_82546_rev_3:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   463
		case e1000_82541:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   464
		case e1000_82541_rev_2:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   465
		case e1000_82547:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   466
		case e1000_82547_rev_2:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   467
			if (er32(MANC) & E1000_MANC_SMBUS_EN)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   468
				goto out;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   469
			break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   470
		default:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   471
			goto out;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   472
		}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   473
		e1000_read_phy_reg(hw, PHY_CTRL, &mii_reg);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   474
		mii_reg |= MII_CR_POWER_DOWN;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   475
		e1000_write_phy_reg(hw, PHY_CTRL, mii_reg);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   476
		mdelay(1);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   477
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   478
out:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   479
	return;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   480
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   481
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   482
void e1000_down(struct e1000_adapter *adapter)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   483
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   484
	struct e1000_hw *hw = &adapter->hw;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   485
	struct net_device *netdev = adapter->netdev;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   486
	u32 rctl, tctl;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   487
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   488
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   489
	/* disable receives in the hardware */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   490
	rctl = er32(RCTL);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   491
	ew32(RCTL, rctl & ~E1000_RCTL_EN);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   492
	/* flush and sleep below */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   493
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   494
	netif_tx_disable(netdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   495
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   496
	/* disable transmits in the hardware */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   497
	tctl = er32(TCTL);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   498
	tctl &= ~E1000_TCTL_EN;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   499
	ew32(TCTL, tctl);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   500
	/* flush both disables and wait for them to finish */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   501
	E1000_WRITE_FLUSH();
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   502
	msleep(10);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   503
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   504
	napi_disable(&adapter->napi);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   505
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   506
	e1000_irq_disable(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   507
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   508
	/*
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   509
	 * Setting DOWN must be after irq_disable to prevent
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   510
	 * a screaming interrupt.  Setting DOWN also prevents
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   511
	 * timers and tasks from rescheduling.
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   512
	 */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   513
	set_bit(__E1000_DOWN, &adapter->flags);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   514
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   515
	del_timer_sync(&adapter->tx_fifo_stall_timer);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   516
	del_timer_sync(&adapter->watchdog_timer);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   517
	del_timer_sync(&adapter->phy_info_timer);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   518
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   519
	adapter->link_speed = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   520
	adapter->link_duplex = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   521
	netif_carrier_off(netdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   522
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   523
	e1000_reset(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   524
	e1000_clean_all_tx_rings(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   525
	e1000_clean_all_rx_rings(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   526
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   527
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   528
static void e1000_reinit_safe(struct e1000_adapter *adapter)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   529
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   530
	while (test_and_set_bit(__E1000_RESETTING, &adapter->flags))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   531
		msleep(1);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   532
	rtnl_lock();
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   533
	e1000_down(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   534
	e1000_up(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   535
	rtnl_unlock();
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   536
	clear_bit(__E1000_RESETTING, &adapter->flags);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   537
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   538
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   539
void e1000_reinit_locked(struct e1000_adapter *adapter)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   540
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   541
	/* if rtnl_lock is not held the call path is bogus */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   542
	ASSERT_RTNL();
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   543
	WARN_ON(in_interrupt());
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   544
	while (test_and_set_bit(__E1000_RESETTING, &adapter->flags))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   545
		msleep(1);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   546
	e1000_down(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   547
	e1000_up(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   548
	clear_bit(__E1000_RESETTING, &adapter->flags);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   549
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   550
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   551
void e1000_reset(struct e1000_adapter *adapter)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   552
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   553
	struct e1000_hw *hw = &adapter->hw;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   554
	u32 pba = 0, tx_space, min_tx_space, min_rx_space;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   555
	bool legacy_pba_adjust = false;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   556
	u16 hwm;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   557
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   558
	/* Repartition Pba for greater than 9k mtu
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   559
	 * To take effect CTRL.RST is required.
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   560
	 */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   561
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   562
	switch (hw->mac_type) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   563
	case e1000_82542_rev2_0:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   564
	case e1000_82542_rev2_1:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   565
	case e1000_82543:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   566
	case e1000_82544:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   567
	case e1000_82540:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   568
	case e1000_82541:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   569
	case e1000_82541_rev_2:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   570
		legacy_pba_adjust = true;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   571
		pba = E1000_PBA_48K;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   572
		break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   573
	case e1000_82545:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   574
	case e1000_82545_rev_3:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   575
	case e1000_82546:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   576
	case e1000_82546_rev_3:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   577
		pba = E1000_PBA_48K;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   578
		break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   579
	case e1000_82547:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   580
	case e1000_82547_rev_2:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   581
		legacy_pba_adjust = true;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   582
		pba = E1000_PBA_30K;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   583
		break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   584
	case e1000_undefined:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   585
	case e1000_num_macs:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   586
		break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   587
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   588
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   589
	if (legacy_pba_adjust) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   590
		if (hw->max_frame_size > E1000_RXBUFFER_8192)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   591
			pba -= 8; /* allocate more FIFO for Tx */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   592
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   593
		if (hw->mac_type == e1000_82547) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   594
			adapter->tx_fifo_head = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   595
			adapter->tx_head_addr = pba << E1000_TX_HEAD_ADDR_SHIFT;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   596
			adapter->tx_fifo_size =
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   597
				(E1000_PBA_40K - pba) << E1000_PBA_BYTES_SHIFT;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   598
			atomic_set(&adapter->tx_fifo_stall, 0);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   599
		}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   600
	} else if (hw->max_frame_size >  ETH_FRAME_LEN + ETH_FCS_LEN) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   601
		/* adjust PBA for jumbo frames */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   602
		ew32(PBA, pba);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   603
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   604
		/* To maintain wire speed transmits, the Tx FIFO should be
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   605
		 * large enough to accommodate two full transmit packets,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   606
		 * rounded up to the next 1KB and expressed in KB.  Likewise,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   607
		 * the Rx FIFO should be large enough to accommodate at least
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   608
		 * one full receive packet and is similarly rounded up and
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   609
		 * expressed in KB. */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   610
		pba = er32(PBA);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   611
		/* upper 16 bits has Tx packet buffer allocation size in KB */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   612
		tx_space = pba >> 16;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   613
		/* lower 16 bits has Rx packet buffer allocation size in KB */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   614
		pba &= 0xffff;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   615
		/*
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   616
		 * the tx fifo also stores 16 bytes of information about the tx
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   617
		 * but don't include ethernet FCS because hardware appends it
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   618
		 */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   619
		min_tx_space = (hw->max_frame_size +
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   620
		                sizeof(struct e1000_tx_desc) -
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   621
		                ETH_FCS_LEN) * 2;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   622
		min_tx_space = ALIGN(min_tx_space, 1024);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   623
		min_tx_space >>= 10;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   624
		/* software strips receive CRC, so leave room for it */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   625
		min_rx_space = hw->max_frame_size;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   626
		min_rx_space = ALIGN(min_rx_space, 1024);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   627
		min_rx_space >>= 10;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   628
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   629
		/* If current Tx allocation is less than the min Tx FIFO size,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   630
		 * and the min Tx FIFO size is less than the current Rx FIFO
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   631
		 * allocation, take space away from current Rx allocation */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   632
		if (tx_space < min_tx_space &&
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   633
		    ((min_tx_space - tx_space) < pba)) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   634
			pba = pba - (min_tx_space - tx_space);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   635
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   636
			/* PCI/PCIx hardware has PBA alignment constraints */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   637
			switch (hw->mac_type) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   638
			case e1000_82545 ... e1000_82546_rev_3:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   639
				pba &= ~(E1000_PBA_8K - 1);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   640
				break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   641
			default:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   642
				break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   643
			}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   644
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   645
			/* if short on rx space, rx wins and must trump tx
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   646
			 * adjustment or use Early Receive if available */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   647
			if (pba < min_rx_space)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   648
				pba = min_rx_space;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   649
		}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   650
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   651
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   652
	ew32(PBA, pba);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   653
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   654
	/*
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   655
	 * flow control settings:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   656
	 * The high water mark must be low enough to fit one full frame
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   657
	 * (or the size used for early receive) above it in the Rx FIFO.
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   658
	 * Set it to the lower of:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   659
	 * - 90% of the Rx FIFO size, and
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   660
	 * - the full Rx FIFO size minus the early receive size (for parts
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   661
	 *   with ERT support assuming ERT set to E1000_ERT_2048), or
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   662
	 * - the full Rx FIFO size minus one full frame
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   663
	 */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   664
	hwm = min(((pba << 10) * 9 / 10),
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   665
		  ((pba << 10) - hw->max_frame_size));
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   666
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   667
	hw->fc_high_water = hwm & 0xFFF8;	/* 8-byte granularity */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   668
	hw->fc_low_water = hw->fc_high_water - 8;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   669
	hw->fc_pause_time = E1000_FC_PAUSE_TIME;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   670
	hw->fc_send_xon = 1;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   671
	hw->fc = hw->original_fc;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   672
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   673
	/* Allow time for pending master requests to run */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   674
	e1000_reset_hw(hw);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   675
	if (hw->mac_type >= e1000_82544)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   676
		ew32(WUC, 0);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   677
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   678
	if (e1000_init_hw(hw))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   679
		e_dev_err("Hardware Error\n");
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   680
	e1000_update_mng_vlan(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   681
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   682
	/* if (adapter->hwflags & HWFLAGS_PHY_PWR_BIT) { */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   683
	if (hw->mac_type >= e1000_82544 &&
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   684
	    hw->autoneg == 1 &&
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   685
	    hw->autoneg_advertised == ADVERTISE_1000_FULL) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   686
		u32 ctrl = er32(CTRL);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   687
		/* clear phy power management bit if we are in gig only mode,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   688
		 * which if enabled will attempt negotiation to 100Mb, which
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   689
		 * can cause a loss of link at power off or driver unload */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   690
		ctrl &= ~E1000_CTRL_SWDPIN3;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   691
		ew32(CTRL, ctrl);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   692
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   693
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   694
	/* Enable h/w to recognize an 802.1Q VLAN Ethernet packet */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   695
	ew32(VET, ETHERNET_IEEE_VLAN_TYPE);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   696
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   697
	e1000_reset_adaptive(hw);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   698
	e1000_phy_get_info(hw, &adapter->phy_info);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   699
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   700
	e1000_release_manageability(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   701
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   702
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   703
/**
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   704
 *  Dump the eeprom for users having checksum issues
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   705
 **/
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   706
static void e1000_dump_eeprom(struct e1000_adapter *adapter)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   707
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   708
	struct net_device *netdev = adapter->netdev;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   709
	struct ethtool_eeprom eeprom;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   710
	const struct ethtool_ops *ops = netdev->ethtool_ops;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   711
	u8 *data;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   712
	int i;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   713
	u16 csum_old, csum_new = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   714
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   715
	eeprom.len = ops->get_eeprom_len(netdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   716
	eeprom.offset = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   717
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   718
	data = kmalloc(eeprom.len, GFP_KERNEL);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   719
	if (!data) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   720
		pr_err("Unable to allocate memory to dump EEPROM data\n");
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   721
		return;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   722
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   723
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   724
	ops->get_eeprom(netdev, &eeprom, data);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   725
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   726
	csum_old = (data[EEPROM_CHECKSUM_REG * 2]) +
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   727
		   (data[EEPROM_CHECKSUM_REG * 2 + 1] << 8);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   728
	for (i = 0; i < EEPROM_CHECKSUM_REG * 2; i += 2)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   729
		csum_new += data[i] + (data[i + 1] << 8);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   730
	csum_new = EEPROM_SUM - csum_new;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   731
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   732
	pr_err("/*********************/\n");
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   733
	pr_err("Current EEPROM Checksum : 0x%04x\n", csum_old);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   734
	pr_err("Calculated              : 0x%04x\n", csum_new);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   735
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   736
	pr_err("Offset    Values\n");
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   737
	pr_err("========  ======\n");
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   738
	print_hex_dump(KERN_ERR, "", DUMP_PREFIX_OFFSET, 16, 1, data, 128, 0);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   739
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   740
	pr_err("Include this output when contacting your support provider.\n");
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   741
	pr_err("This is not a software error! Something bad happened to\n");
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   742
	pr_err("your hardware or EEPROM image. Ignoring this problem could\n");
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   743
	pr_err("result in further problems, possibly loss of data,\n");
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   744
	pr_err("corruption or system hangs!\n");
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   745
	pr_err("The MAC Address will be reset to 00:00:00:00:00:00,\n");
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   746
	pr_err("which is invalid and requires you to set the proper MAC\n");
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   747
	pr_err("address manually before continuing to enable this network\n");
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   748
	pr_err("device. Please inspect the EEPROM dump and report the\n");
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   749
	pr_err("issue to your hardware vendor or Intel Customer Support.\n");
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   750
	pr_err("/*********************/\n");
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   751
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   752
	kfree(data);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   753
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   754
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   755
/**
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   756
 * e1000_is_need_ioport - determine if an adapter needs ioport resources or not
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   757
 * @pdev: PCI device information struct
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   758
 *
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   759
 * Return true if an adapter needs ioport resources
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   760
 **/
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   761
static int e1000_is_need_ioport(struct pci_dev *pdev)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   762
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   763
	switch (pdev->device) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   764
	case E1000_DEV_ID_82540EM:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   765
	case E1000_DEV_ID_82540EM_LOM:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   766
	case E1000_DEV_ID_82540EP:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   767
	case E1000_DEV_ID_82540EP_LOM:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   768
	case E1000_DEV_ID_82540EP_LP:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   769
	case E1000_DEV_ID_82541EI:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   770
	case E1000_DEV_ID_82541EI_MOBILE:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   771
	case E1000_DEV_ID_82541ER:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   772
	case E1000_DEV_ID_82541ER_LOM:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   773
	case E1000_DEV_ID_82541GI:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   774
	case E1000_DEV_ID_82541GI_LF:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   775
	case E1000_DEV_ID_82541GI_MOBILE:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   776
	case E1000_DEV_ID_82544EI_COPPER:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   777
	case E1000_DEV_ID_82544EI_FIBER:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   778
	case E1000_DEV_ID_82544GC_COPPER:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   779
	case E1000_DEV_ID_82544GC_LOM:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   780
	case E1000_DEV_ID_82545EM_COPPER:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   781
	case E1000_DEV_ID_82545EM_FIBER:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   782
	case E1000_DEV_ID_82546EB_COPPER:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   783
	case E1000_DEV_ID_82546EB_FIBER:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   784
	case E1000_DEV_ID_82546EB_QUAD_COPPER:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   785
		return true;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   786
	default:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   787
		return false;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   788
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   789
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   790
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   791
static const struct net_device_ops e1000_netdev_ops = {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   792
	.ndo_open		= e1000_open,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   793
	.ndo_stop		= e1000_close,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   794
	.ndo_start_xmit		= e1000_xmit_frame,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   795
	.ndo_get_stats		= e1000_get_stats,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   796
	.ndo_set_rx_mode	= e1000_set_rx_mode,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   797
	.ndo_set_mac_address	= e1000_set_mac,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   798
	.ndo_tx_timeout 	= e1000_tx_timeout,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   799
	.ndo_change_mtu		= e1000_change_mtu,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   800
	.ndo_do_ioctl		= e1000_ioctl,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   801
	.ndo_validate_addr	= eth_validate_addr,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   802
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   803
	.ndo_vlan_rx_register	= e1000_vlan_rx_register,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   804
	.ndo_vlan_rx_add_vid	= e1000_vlan_rx_add_vid,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   805
	.ndo_vlan_rx_kill_vid	= e1000_vlan_rx_kill_vid,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   806
#ifdef CONFIG_NET_POLL_CONTROLLER
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   807
	.ndo_poll_controller	= e1000_netpoll,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   808
#endif
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   809
};
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   810
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   811
/**
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   812
 * e1000_init_hw_struct - initialize members of hw struct
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   813
 * @adapter: board private struct
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   814
 * @hw: structure used by e1000_hw.c
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   815
 *
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   816
 * Factors out initialization of the e1000_hw struct to its own function
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   817
 * that can be called very early at init (just after struct allocation).
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   818
 * Fields are initialized based on PCI device information and
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   819
 * OS network device settings (MTU size).
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   820
 * Returns negative error codes if MAC type setup fails.
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   821
 */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   822
static int e1000_init_hw_struct(struct e1000_adapter *adapter,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   823
				struct e1000_hw *hw)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   824
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   825
	struct pci_dev *pdev = adapter->pdev;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   826
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   827
	/* PCI config space info */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   828
	hw->vendor_id = pdev->vendor;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   829
	hw->device_id = pdev->device;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   830
	hw->subsystem_vendor_id = pdev->subsystem_vendor;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   831
	hw->subsystem_id = pdev->subsystem_device;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   832
	hw->revision_id = pdev->revision;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   833
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   834
	pci_read_config_word(pdev, PCI_COMMAND, &hw->pci_cmd_word);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   835
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   836
	hw->max_frame_size = adapter->netdev->mtu +
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   837
			     ENET_HEADER_SIZE + ETHERNET_FCS_SIZE;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   838
	hw->min_frame_size = MINIMUM_ETHERNET_FRAME_SIZE;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   839
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   840
	/* identify the MAC */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   841
	if (e1000_set_mac_type(hw)) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   842
		e_err(probe, "Unknown MAC Type\n");
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   843
		return -EIO;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   844
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   845
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   846
	switch (hw->mac_type) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   847
	default:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   848
		break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   849
	case e1000_82541:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   850
	case e1000_82547:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   851
	case e1000_82541_rev_2:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   852
	case e1000_82547_rev_2:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   853
		hw->phy_init_script = 1;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   854
		break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   855
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   856
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   857
	e1000_set_media_type(hw);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   858
	e1000_get_bus_info(hw);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   859
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   860
	hw->wait_autoneg_complete = false;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   861
	hw->tbi_compatibility_en = true;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   862
	hw->adaptive_ifs = true;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   863
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   864
	/* Copper options */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   865
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   866
	if (hw->media_type == e1000_media_type_copper) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   867
		hw->mdix = AUTO_ALL_MODES;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   868
		hw->disable_polarity_correction = false;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   869
		hw->master_slave = E1000_MASTER_SLAVE;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   870
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   871
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   872
	return 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   873
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   874
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   875
/**
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   876
 * e1000_probe - Device Initialization Routine
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   877
 * @pdev: PCI device information struct
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   878
 * @ent: entry in e1000_pci_tbl
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   879
 *
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   880
 * Returns 0 on success, negative on failure
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   881
 *
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   882
 * e1000_probe initializes an adapter identified by a pci_dev structure.
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   883
 * The OS initialization, configuring of the adapter private structure,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   884
 * and a hardware reset occur.
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   885
 **/
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   886
static int __devinit e1000_probe(struct pci_dev *pdev,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   887
				 const struct pci_device_id *ent)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   888
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   889
	struct net_device *netdev;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   890
	struct e1000_adapter *adapter;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   891
	struct e1000_hw *hw;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   892
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   893
	static int cards_found = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   894
	static int global_quad_port_a = 0; /* global ksp3 port a indication */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   895
	int i, err, pci_using_dac;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   896
	u16 eeprom_data = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   897
	u16 eeprom_apme_mask = E1000_EEPROM_APME;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   898
	int bars, need_ioport;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   899
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   900
	/* do not allocate ioport bars when not needed */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   901
	need_ioport = e1000_is_need_ioport(pdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   902
	if (need_ioport) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   903
		bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   904
		err = pci_enable_device(pdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   905
	} else {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   906
		bars = pci_select_bars(pdev, IORESOURCE_MEM);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   907
		err = pci_enable_device_mem(pdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   908
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   909
	if (err)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   910
		return err;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   911
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   912
	err = pci_request_selected_regions(pdev, bars, e1000_driver_name);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   913
	if (err)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   914
		goto err_pci_reg;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   915
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   916
	pci_set_master(pdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   917
	err = pci_save_state(pdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   918
	if (err)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   919
		goto err_alloc_etherdev;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   920
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   921
	err = -ENOMEM;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   922
	netdev = alloc_etherdev(sizeof(struct e1000_adapter));
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   923
	if (!netdev)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   924
		goto err_alloc_etherdev;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   925
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   926
	SET_NETDEV_DEV(netdev, &pdev->dev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   927
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   928
	pci_set_drvdata(pdev, netdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   929
	adapter = netdev_priv(netdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   930
	adapter->netdev = netdev;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   931
	adapter->pdev = pdev;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   932
	adapter->msg_enable = (1 << debug) - 1;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   933
	adapter->bars = bars;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   934
	adapter->need_ioport = need_ioport;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   935
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   936
	hw = &adapter->hw;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   937
	hw->back = adapter;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   938
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   939
	err = -EIO;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   940
	hw->hw_addr = pci_ioremap_bar(pdev, BAR_0);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   941
	if (!hw->hw_addr)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   942
		goto err_ioremap;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   943
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   944
	if (adapter->need_ioport) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   945
		for (i = BAR_1; i <= BAR_5; i++) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   946
			if (pci_resource_len(pdev, i) == 0)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   947
				continue;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   948
			if (pci_resource_flags(pdev, i) & IORESOURCE_IO) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   949
				hw->io_base = pci_resource_start(pdev, i);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   950
				break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   951
			}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   952
		}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   953
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   954
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   955
	/* make ready for any if (hw->...) below */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   956
	err = e1000_init_hw_struct(adapter, hw);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   957
	if (err)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   958
		goto err_sw_init;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   959
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   960
	/*
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   961
	 * there is a workaround being applied below that limits
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   962
	 * 64-bit DMA addresses to 64-bit hardware.  There are some
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   963
	 * 32-bit adapters that Tx hang when given 64-bit DMA addresses
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   964
	 */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   965
	pci_using_dac = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   966
	if ((hw->bus_type == e1000_bus_type_pcix) &&
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   967
	    !dma_set_mask(&pdev->dev, DMA_BIT_MASK(64))) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   968
		/*
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   969
		 * according to DMA-API-HOWTO, coherent calls will always
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   970
		 * succeed if the set call did
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   971
		 */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   972
		dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64));
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   973
		pci_using_dac = 1;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   974
	} else {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   975
		err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   976
		if (err) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   977
			pr_err("No usable DMA config, aborting\n");
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   978
			goto err_dma;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   979
		}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   980
		dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   981
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   982
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   983
	netdev->netdev_ops = &e1000_netdev_ops;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   984
	e1000_set_ethtool_ops(netdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   985
	netdev->watchdog_timeo = 5 * HZ;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   986
	netif_napi_add(netdev, &adapter->napi, e1000_clean, 64);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   987
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   988
	strncpy(netdev->name, pci_name(pdev), sizeof(netdev->name) - 1);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   989
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   990
	adapter->bd_number = cards_found;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   991
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   992
	/* setup the private structure */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   993
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   994
	err = e1000_sw_init(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   995
	if (err)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   996
		goto err_sw_init;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   997
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   998
	err = -EIO;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   999
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1000
	if (hw->mac_type >= e1000_82543) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1001
		netdev->features = NETIF_F_SG |
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1002
				   NETIF_F_HW_CSUM |
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1003
				   NETIF_F_HW_VLAN_TX |
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1004
				   NETIF_F_HW_VLAN_RX |
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1005
				   NETIF_F_HW_VLAN_FILTER;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1006
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1007
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1008
	if ((hw->mac_type >= e1000_82544) &&
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1009
	   (hw->mac_type != e1000_82547))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1010
		netdev->features |= NETIF_F_TSO;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1011
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1012
	if (pci_using_dac) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1013
		netdev->features |= NETIF_F_HIGHDMA;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1014
		netdev->vlan_features |= NETIF_F_HIGHDMA;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1015
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1016
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1017
	netdev->vlan_features |= NETIF_F_TSO;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1018
	netdev->vlan_features |= NETIF_F_HW_CSUM;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1019
	netdev->vlan_features |= NETIF_F_SG;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1020
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1021
	adapter->en_mng_pt = e1000_enable_mng_pass_thru(hw);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1022
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1023
	/* initialize eeprom parameters */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1024
	if (e1000_init_eeprom_params(hw)) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1025
		e_err(probe, "EEPROM initialization failed\n");
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1026
		goto err_eeprom;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1027
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1028
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1029
	/* before reading the EEPROM, reset the controller to
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1030
	 * put the device in a known good starting state */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1031
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1032
	e1000_reset_hw(hw);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1033
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1034
	/* make sure the EEPROM is good */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1035
	if (e1000_validate_eeprom_checksum(hw) < 0) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1036
		e_err(probe, "The EEPROM Checksum Is Not Valid\n");
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1037
		e1000_dump_eeprom(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1038
		/*
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1039
		 * set MAC address to all zeroes to invalidate and temporary
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1040
		 * disable this device for the user. This blocks regular
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1041
		 * traffic while still permitting ethtool ioctls from reaching
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1042
		 * the hardware as well as allowing the user to run the
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1043
		 * interface after manually setting a hw addr using
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1044
		 * `ip set address`
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1045
		 */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1046
		memset(hw->mac_addr, 0, netdev->addr_len);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1047
	} else {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1048
		/* copy the MAC address out of the EEPROM */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1049
		if (e1000_read_mac_addr(hw))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1050
			e_err(probe, "EEPROM Read Error\n");
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1051
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1052
	/* don't block initalization here due to bad MAC address */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1053
	memcpy(netdev->dev_addr, hw->mac_addr, netdev->addr_len);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1054
	memcpy(netdev->perm_addr, hw->mac_addr, netdev->addr_len);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1055
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1056
	if (!is_valid_ether_addr(netdev->perm_addr))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1057
		e_err(probe, "Invalid MAC Address\n");
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1058
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1059
	init_timer(&adapter->tx_fifo_stall_timer);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1060
	adapter->tx_fifo_stall_timer.function = e1000_82547_tx_fifo_stall;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1061
	adapter->tx_fifo_stall_timer.data = (unsigned long)adapter;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1062
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1063
	init_timer(&adapter->watchdog_timer);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1064
	adapter->watchdog_timer.function = e1000_watchdog;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1065
	adapter->watchdog_timer.data = (unsigned long) adapter;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1066
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1067
	init_timer(&adapter->phy_info_timer);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1068
	adapter->phy_info_timer.function = e1000_update_phy_info;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1069
	adapter->phy_info_timer.data = (unsigned long)adapter;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1070
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1071
	INIT_WORK(&adapter->fifo_stall_task, e1000_82547_tx_fifo_stall_task);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1072
	INIT_WORK(&adapter->reset_task, e1000_reset_task);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1073
	INIT_WORK(&adapter->phy_info_task, e1000_update_phy_info_task);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1074
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1075
	e1000_check_options(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1076
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1077
	/* Initial Wake on LAN setting
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1078
	 * If APM wake is enabled in the EEPROM,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1079
	 * enable the ACPI Magic Packet filter
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1080
	 */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1081
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1082
	switch (hw->mac_type) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1083
	case e1000_82542_rev2_0:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1084
	case e1000_82542_rev2_1:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1085
	case e1000_82543:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1086
		break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1087
	case e1000_82544:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1088
		e1000_read_eeprom(hw,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1089
			EEPROM_INIT_CONTROL2_REG, 1, &eeprom_data);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1090
		eeprom_apme_mask = E1000_EEPROM_82544_APM;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1091
		break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1092
	case e1000_82546:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1093
	case e1000_82546_rev_3:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1094
		if (er32(STATUS) & E1000_STATUS_FUNC_1){
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1095
			e1000_read_eeprom(hw,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1096
				EEPROM_INIT_CONTROL3_PORT_B, 1, &eeprom_data);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1097
			break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1098
		}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1099
		/* Fall Through */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1100
	default:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1101
		e1000_read_eeprom(hw,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1102
			EEPROM_INIT_CONTROL3_PORT_A, 1, &eeprom_data);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1103
		break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1104
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1105
	if (eeprom_data & eeprom_apme_mask)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1106
		adapter->eeprom_wol |= E1000_WUFC_MAG;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1107
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1108
	/* now that we have the eeprom settings, apply the special cases
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1109
	 * where the eeprom may be wrong or the board simply won't support
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1110
	 * wake on lan on a particular port */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1111
	switch (pdev->device) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1112
	case E1000_DEV_ID_82546GB_PCIE:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1113
		adapter->eeprom_wol = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1114
		break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1115
	case E1000_DEV_ID_82546EB_FIBER:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1116
	case E1000_DEV_ID_82546GB_FIBER:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1117
		/* Wake events only supported on port A for dual fiber
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1118
		 * regardless of eeprom setting */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1119
		if (er32(STATUS) & E1000_STATUS_FUNC_1)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1120
			adapter->eeprom_wol = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1121
		break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1122
	case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1123
		/* if quad port adapter, disable WoL on all but port A */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1124
		if (global_quad_port_a != 0)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1125
			adapter->eeprom_wol = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1126
		else
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1127
			adapter->quad_port_a = 1;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1128
		/* Reset for multiple quad port adapters */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1129
		if (++global_quad_port_a == 4)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1130
			global_quad_port_a = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1131
		break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1132
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1133
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1134
	/* initialize the wol settings based on the eeprom settings */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1135
	adapter->wol = adapter->eeprom_wol;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1136
	device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1137
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1138
	/* reset the hardware with the new settings */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1139
	e1000_reset(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1140
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1141
	strcpy(netdev->name, "eth%d");
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1142
	err = register_netdev(netdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1143
	if (err)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1144
		goto err_register;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1145
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1146
	/* print bus type/speed/width info */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1147
	e_info(probe, "(PCI%s:%dMHz:%d-bit) %pM\n",
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1148
	       ((hw->bus_type == e1000_bus_type_pcix) ? "-X" : ""),
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1149
	       ((hw->bus_speed == e1000_bus_speed_133) ? 133 :
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1150
		(hw->bus_speed == e1000_bus_speed_120) ? 120 :
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1151
		(hw->bus_speed == e1000_bus_speed_100) ? 100 :
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1152
		(hw->bus_speed == e1000_bus_speed_66) ? 66 : 33),
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1153
	       ((hw->bus_width == e1000_bus_width_64) ? 64 : 32),
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1154
	       netdev->dev_addr);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1155
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1156
	/* carrier off reporting is important to ethtool even BEFORE open */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1157
	netif_carrier_off(netdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1158
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1159
	e_info(probe, "Intel(R) PRO/1000 Network Connection\n");
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1160
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1161
	cards_found++;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1162
	return 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1163
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1164
err_register:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1165
err_eeprom:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1166
	e1000_phy_hw_reset(hw);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1167
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1168
	if (hw->flash_address)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1169
		iounmap(hw->flash_address);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1170
	kfree(adapter->tx_ring);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1171
	kfree(adapter->rx_ring);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1172
err_dma:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1173
err_sw_init:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1174
	iounmap(hw->hw_addr);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1175
err_ioremap:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1176
	free_netdev(netdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1177
err_alloc_etherdev:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1178
	pci_release_selected_regions(pdev, bars);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1179
err_pci_reg:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1180
	pci_disable_device(pdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1181
	return err;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1182
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1183
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1184
/**
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1185
 * e1000_remove - Device Removal Routine
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1186
 * @pdev: PCI device information struct
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1187
 *
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1188
 * e1000_remove is called by the PCI subsystem to alert the driver
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1189
 * that it should release a PCI device.  The could be caused by a
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1190
 * Hot-Plug event, or because the driver is going to be removed from
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1191
 * memory.
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1192
 **/
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1193
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1194
static void __devexit e1000_remove(struct pci_dev *pdev)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1195
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1196
	struct net_device *netdev = pci_get_drvdata(pdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1197
	struct e1000_adapter *adapter = netdev_priv(netdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1198
	struct e1000_hw *hw = &adapter->hw;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1199
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1200
	set_bit(__E1000_DOWN, &adapter->flags);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1201
	del_timer_sync(&adapter->tx_fifo_stall_timer);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1202
	del_timer_sync(&adapter->watchdog_timer);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1203
	del_timer_sync(&adapter->phy_info_timer);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1204
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1205
	cancel_work_sync(&adapter->reset_task);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1206
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1207
	e1000_release_manageability(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1208
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1209
	unregister_netdev(netdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1210
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1211
	e1000_phy_hw_reset(hw);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1212
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1213
	kfree(adapter->tx_ring);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1214
	kfree(adapter->rx_ring);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1215
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1216
	iounmap(hw->hw_addr);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1217
	if (hw->flash_address)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1218
		iounmap(hw->flash_address);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1219
	pci_release_selected_regions(pdev, adapter->bars);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1220
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1221
	free_netdev(netdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1222
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1223
	pci_disable_device(pdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1224
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1225
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1226
/**
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1227
 * e1000_sw_init - Initialize general software structures (struct e1000_adapter)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1228
 * @adapter: board private structure to initialize
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1229
 *
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1230
 * e1000_sw_init initializes the Adapter private data structure.
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1231
 * e1000_init_hw_struct MUST be called before this function
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1232
 **/
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1233
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1234
static int __devinit e1000_sw_init(struct e1000_adapter *adapter)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1235
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1236
	adapter->rx_buffer_len = MAXIMUM_ETHERNET_VLAN_SIZE;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1237
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1238
	adapter->num_tx_queues = 1;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1239
	adapter->num_rx_queues = 1;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1240
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1241
	if (e1000_alloc_queues(adapter)) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1242
		e_err(probe, "Unable to allocate memory for queues\n");
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1243
		return -ENOMEM;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1244
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1245
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1246
	/* Explicitly disable IRQ since the NIC can be in any state. */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1247
	e1000_irq_disable(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1248
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1249
	spin_lock_init(&adapter->stats_lock);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1250
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1251
	set_bit(__E1000_DOWN, &adapter->flags);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1252
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1253
	return 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1254
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1255
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1256
/**
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1257
 * e1000_alloc_queues - Allocate memory for all rings
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1258
 * @adapter: board private structure to initialize
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1259
 *
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1260
 * We allocate one ring per queue at run-time since we don't know the
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1261
 * number of queues at compile-time.
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1262
 **/
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1263
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1264
static int __devinit e1000_alloc_queues(struct e1000_adapter *adapter)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1265
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1266
	adapter->tx_ring = kcalloc(adapter->num_tx_queues,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1267
	                           sizeof(struct e1000_tx_ring), GFP_KERNEL);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1268
	if (!adapter->tx_ring)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1269
		return -ENOMEM;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1270
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1271
	adapter->rx_ring = kcalloc(adapter->num_rx_queues,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1272
	                           sizeof(struct e1000_rx_ring), GFP_KERNEL);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1273
	if (!adapter->rx_ring) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1274
		kfree(adapter->tx_ring);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1275
		return -ENOMEM;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1276
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1277
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1278
	return E1000_SUCCESS;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1279
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1280
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1281
/**
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1282
 * e1000_open - Called when a network interface is made active
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1283
 * @netdev: network interface device structure
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1284
 *
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1285
 * Returns 0 on success, negative value on failure
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1286
 *
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1287
 * The open entry point is called when a network interface is made
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1288
 * active by the system (IFF_UP).  At this point all resources needed
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1289
 * for transmit and receive operations are allocated, the interrupt
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1290
 * handler is registered with the OS, the watchdog timer is started,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1291
 * and the stack is notified that the interface is ready.
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1292
 **/
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1293
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1294
static int e1000_open(struct net_device *netdev)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1295
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1296
	struct e1000_adapter *adapter = netdev_priv(netdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1297
	struct e1000_hw *hw = &adapter->hw;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1298
	int err;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1299
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1300
	/* disallow open during test */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1301
	if (test_bit(__E1000_TESTING, &adapter->flags))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1302
		return -EBUSY;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1303
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1304
	netif_carrier_off(netdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1305
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1306
	/* allocate transmit descriptors */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1307
	err = e1000_setup_all_tx_resources(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1308
	if (err)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1309
		goto err_setup_tx;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1310
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1311
	/* allocate receive descriptors */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1312
	err = e1000_setup_all_rx_resources(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1313
	if (err)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1314
		goto err_setup_rx;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1315
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1316
	e1000_power_up_phy(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1317
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1318
	adapter->mng_vlan_id = E1000_MNG_VLAN_NONE;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1319
	if ((hw->mng_cookie.status &
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1320
			  E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT)) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1321
		e1000_update_mng_vlan(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1322
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1323
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1324
	/* before we allocate an interrupt, we must be ready to handle it.
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1325
	 * Setting DEBUG_SHIRQ in the kernel makes it fire an interrupt
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1326
	 * as soon as we call pci_request_irq, so we have to setup our
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1327
	 * clean_rx handler before we do so.  */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1328
	e1000_configure(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1329
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1330
	err = e1000_request_irq(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1331
	if (err)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1332
		goto err_req_irq;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1333
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1334
	/* From here on the code is the same as e1000_up() */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1335
	clear_bit(__E1000_DOWN, &adapter->flags);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1336
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1337
	napi_enable(&adapter->napi);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1338
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1339
	e1000_irq_enable(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1340
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1341
	netif_start_queue(netdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1342
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1343
	/* fire a link status change interrupt to start the watchdog */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1344
	ew32(ICS, E1000_ICS_LSC);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1345
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1346
	return E1000_SUCCESS;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1347
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1348
err_req_irq:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1349
	e1000_power_down_phy(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1350
	e1000_free_all_rx_resources(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1351
err_setup_rx:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1352
	e1000_free_all_tx_resources(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1353
err_setup_tx:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1354
	e1000_reset(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1355
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1356
	return err;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1357
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1358
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1359
/**
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1360
 * e1000_close - Disables a network interface
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1361
 * @netdev: network interface device structure
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1362
 *
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1363
 * Returns 0, this is not allowed to fail
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1364
 *
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1365
 * The close entry point is called when an interface is de-activated
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1366
 * by the OS.  The hardware is still under the drivers control, but
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1367
 * needs to be disabled.  A global MAC reset is issued to stop the
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1368
 * hardware, and all transmit and receive resources are freed.
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1369
 **/
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1370
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1371
static int e1000_close(struct net_device *netdev)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1372
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1373
	struct e1000_adapter *adapter = netdev_priv(netdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1374
	struct e1000_hw *hw = &adapter->hw;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1375
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1376
	WARN_ON(test_bit(__E1000_RESETTING, &adapter->flags));
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1377
	e1000_down(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1378
	e1000_power_down_phy(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1379
	e1000_free_irq(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1380
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1381
	e1000_free_all_tx_resources(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1382
	e1000_free_all_rx_resources(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1383
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1384
	/* kill manageability vlan ID if supported, but not if a vlan with
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1385
	 * the same ID is registered on the host OS (let 8021q kill it) */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1386
	if ((hw->mng_cookie.status &
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1387
			  E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT) &&
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1388
	     !(adapter->vlgrp &&
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1389
	       vlan_group_get_device(adapter->vlgrp, adapter->mng_vlan_id))) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1390
		e1000_vlan_rx_kill_vid(netdev, adapter->mng_vlan_id);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1391
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1392
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1393
	return 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1394
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1395
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1396
/**
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1397
 * e1000_check_64k_bound - check that memory doesn't cross 64kB boundary
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1398
 * @adapter: address of board private structure
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1399
 * @start: address of beginning of memory
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1400
 * @len: length of memory
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1401
 **/
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1402
static bool e1000_check_64k_bound(struct e1000_adapter *adapter, void *start,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1403
				  unsigned long len)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1404
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1405
	struct e1000_hw *hw = &adapter->hw;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1406
	unsigned long begin = (unsigned long)start;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1407
	unsigned long end = begin + len;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1408
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1409
	/* First rev 82545 and 82546 need to not allow any memory
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1410
	 * write location to cross 64k boundary due to errata 23 */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1411
	if (hw->mac_type == e1000_82545 ||
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1412
	    hw->mac_type == e1000_82546) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1413
		return ((begin ^ (end - 1)) >> 16) != 0 ? false : true;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1414
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1415
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1416
	return true;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1417
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1418
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1419
/**
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1420
 * e1000_setup_tx_resources - allocate Tx resources (Descriptors)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1421
 * @adapter: board private structure
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1422
 * @txdr:    tx descriptor ring (for a specific queue) to setup
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1423
 *
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1424
 * Return 0 on success, negative on failure
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1425
 **/
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1426
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1427
static int e1000_setup_tx_resources(struct e1000_adapter *adapter,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1428
				    struct e1000_tx_ring *txdr)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1429
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1430
	struct pci_dev *pdev = adapter->pdev;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1431
	int size;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1432
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1433
	size = sizeof(struct e1000_buffer) * txdr->count;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1434
	txdr->buffer_info = vmalloc(size);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1435
	if (!txdr->buffer_info) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1436
		e_err(probe, "Unable to allocate memory for the Tx descriptor "
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1437
		      "ring\n");
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1438
		return -ENOMEM;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1439
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1440
	memset(txdr->buffer_info, 0, size);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1441
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1442
	/* round up to nearest 4K */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1443
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1444
	txdr->size = txdr->count * sizeof(struct e1000_tx_desc);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1445
	txdr->size = ALIGN(txdr->size, 4096);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1446
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1447
	txdr->desc = dma_alloc_coherent(&pdev->dev, txdr->size, &txdr->dma,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1448
					GFP_KERNEL);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1449
	if (!txdr->desc) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1450
setup_tx_desc_die:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1451
		vfree(txdr->buffer_info);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1452
		e_err(probe, "Unable to allocate memory for the Tx descriptor "
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1453
		      "ring\n");
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1454
		return -ENOMEM;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1455
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1456
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1457
	/* Fix for errata 23, can't cross 64kB boundary */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1458
	if (!e1000_check_64k_bound(adapter, txdr->desc, txdr->size)) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1459
		void *olddesc = txdr->desc;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1460
		dma_addr_t olddma = txdr->dma;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1461
		e_err(tx_err, "txdr align check failed: %u bytes at %p\n",
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1462
		      txdr->size, txdr->desc);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1463
		/* Try again, without freeing the previous */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1464
		txdr->desc = dma_alloc_coherent(&pdev->dev, txdr->size,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1465
						&txdr->dma, GFP_KERNEL);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1466
		/* Failed allocation, critical failure */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1467
		if (!txdr->desc) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1468
			dma_free_coherent(&pdev->dev, txdr->size, olddesc,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1469
					  olddma);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1470
			goto setup_tx_desc_die;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1471
		}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1472
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1473
		if (!e1000_check_64k_bound(adapter, txdr->desc, txdr->size)) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1474
			/* give up */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1475
			dma_free_coherent(&pdev->dev, txdr->size, txdr->desc,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1476
					  txdr->dma);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1477
			dma_free_coherent(&pdev->dev, txdr->size, olddesc,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1478
					  olddma);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1479
			e_err(probe, "Unable to allocate aligned memory "
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1480
			      "for the transmit descriptor ring\n");
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1481
			vfree(txdr->buffer_info);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1482
			return -ENOMEM;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1483
		} else {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1484
			/* Free old allocation, new allocation was successful */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1485
			dma_free_coherent(&pdev->dev, txdr->size, olddesc,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1486
					  olddma);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1487
		}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1488
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1489
	memset(txdr->desc, 0, txdr->size);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1490
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1491
	txdr->next_to_use = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1492
	txdr->next_to_clean = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1493
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1494
	return 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1495
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1496
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1497
/**
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1498
 * e1000_setup_all_tx_resources - wrapper to allocate Tx resources
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1499
 * 				  (Descriptors) for all queues
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1500
 * @adapter: board private structure
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1501
 *
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1502
 * Return 0 on success, negative on failure
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1503
 **/
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1504
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1505
int e1000_setup_all_tx_resources(struct e1000_adapter *adapter)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1506
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1507
	int i, err = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1508
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1509
	for (i = 0; i < adapter->num_tx_queues; i++) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1510
		err = e1000_setup_tx_resources(adapter, &adapter->tx_ring[i]);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1511
		if (err) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1512
			e_err(probe, "Allocation for Tx Queue %u failed\n", i);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1513
			for (i-- ; i >= 0; i--)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1514
				e1000_free_tx_resources(adapter,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1515
							&adapter->tx_ring[i]);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1516
			break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1517
		}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1518
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1519
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1520
	return err;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1521
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1522
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1523
/**
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1524
 * e1000_configure_tx - Configure 8254x Transmit Unit after Reset
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1525
 * @adapter: board private structure
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1526
 *
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1527
 * Configure the Tx unit of the MAC after a reset.
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1528
 **/
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1529
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1530
static void e1000_configure_tx(struct e1000_adapter *adapter)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1531
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1532
	u64 tdba;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1533
	struct e1000_hw *hw = &adapter->hw;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1534
	u32 tdlen, tctl, tipg;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1535
	u32 ipgr1, ipgr2;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1536
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1537
	/* Setup the HW Tx Head and Tail descriptor pointers */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1538
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1539
	switch (adapter->num_tx_queues) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1540
	case 1:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1541
	default:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1542
		tdba = adapter->tx_ring[0].dma;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1543
		tdlen = adapter->tx_ring[0].count *
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1544
			sizeof(struct e1000_tx_desc);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1545
		ew32(TDLEN, tdlen);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1546
		ew32(TDBAH, (tdba >> 32));
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1547
		ew32(TDBAL, (tdba & 0x00000000ffffffffULL));
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1548
		ew32(TDT, 0);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1549
		ew32(TDH, 0);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1550
		adapter->tx_ring[0].tdh = ((hw->mac_type >= e1000_82543) ? E1000_TDH : E1000_82542_TDH);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1551
		adapter->tx_ring[0].tdt = ((hw->mac_type >= e1000_82543) ? E1000_TDT : E1000_82542_TDT);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1552
		break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1553
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1554
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1555
	/* Set the default values for the Tx Inter Packet Gap timer */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1556
	if ((hw->media_type == e1000_media_type_fiber ||
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1557
	     hw->media_type == e1000_media_type_internal_serdes))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1558
		tipg = DEFAULT_82543_TIPG_IPGT_FIBER;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1559
	else
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1560
		tipg = DEFAULT_82543_TIPG_IPGT_COPPER;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1561
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1562
	switch (hw->mac_type) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1563
	case e1000_82542_rev2_0:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1564
	case e1000_82542_rev2_1:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1565
		tipg = DEFAULT_82542_TIPG_IPGT;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1566
		ipgr1 = DEFAULT_82542_TIPG_IPGR1;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1567
		ipgr2 = DEFAULT_82542_TIPG_IPGR2;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1568
		break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1569
	default:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1570
		ipgr1 = DEFAULT_82543_TIPG_IPGR1;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1571
		ipgr2 = DEFAULT_82543_TIPG_IPGR2;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1572
		break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1573
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1574
	tipg |= ipgr1 << E1000_TIPG_IPGR1_SHIFT;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1575
	tipg |= ipgr2 << E1000_TIPG_IPGR2_SHIFT;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1576
	ew32(TIPG, tipg);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1577
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1578
	/* Set the Tx Interrupt Delay register */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1579
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1580
	ew32(TIDV, adapter->tx_int_delay);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1581
	if (hw->mac_type >= e1000_82540)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1582
		ew32(TADV, adapter->tx_abs_int_delay);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1583
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1584
	/* Program the Transmit Control Register */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1585
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1586
	tctl = er32(TCTL);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1587
	tctl &= ~E1000_TCTL_CT;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1588
	tctl |= E1000_TCTL_PSP | E1000_TCTL_RTLC |
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1589
		(E1000_COLLISION_THRESHOLD << E1000_CT_SHIFT);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1590
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1591
	e1000_config_collision_dist(hw);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1592
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1593
	/* Setup Transmit Descriptor Settings for eop descriptor */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1594
	adapter->txd_cmd = E1000_TXD_CMD_EOP | E1000_TXD_CMD_IFCS;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1595
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1596
	/* only set IDE if we are delaying interrupts using the timers */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1597
	if (adapter->tx_int_delay)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1598
		adapter->txd_cmd |= E1000_TXD_CMD_IDE;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1599
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1600
	if (hw->mac_type < e1000_82543)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1601
		adapter->txd_cmd |= E1000_TXD_CMD_RPS;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1602
	else
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1603
		adapter->txd_cmd |= E1000_TXD_CMD_RS;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1604
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1605
	/* Cache if we're 82544 running in PCI-X because we'll
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1606
	 * need this to apply a workaround later in the send path. */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1607
	if (hw->mac_type == e1000_82544 &&
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1608
	    hw->bus_type == e1000_bus_type_pcix)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1609
		adapter->pcix_82544 = 1;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1610
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1611
	ew32(TCTL, tctl);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1612
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1613
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1614
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1615
/**
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1616
 * e1000_setup_rx_resources - allocate Rx resources (Descriptors)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1617
 * @adapter: board private structure
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1618
 * @rxdr:    rx descriptor ring (for a specific queue) to setup
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1619
 *
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1620
 * Returns 0 on success, negative on failure
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1621
 **/
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1622
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1623
static int e1000_setup_rx_resources(struct e1000_adapter *adapter,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1624
				    struct e1000_rx_ring *rxdr)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1625
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1626
	struct pci_dev *pdev = adapter->pdev;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1627
	int size, desc_len;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1628
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1629
	size = sizeof(struct e1000_buffer) * rxdr->count;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1630
	rxdr->buffer_info = vmalloc(size);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1631
	if (!rxdr->buffer_info) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1632
		e_err(probe, "Unable to allocate memory for the Rx descriptor "
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1633
		      "ring\n");
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1634
		return -ENOMEM;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1635
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1636
	memset(rxdr->buffer_info, 0, size);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1637
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1638
	desc_len = sizeof(struct e1000_rx_desc);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1639
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1640
	/* Round up to nearest 4K */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1641
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1642
	rxdr->size = rxdr->count * desc_len;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1643
	rxdr->size = ALIGN(rxdr->size, 4096);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1644
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1645
	rxdr->desc = dma_alloc_coherent(&pdev->dev, rxdr->size, &rxdr->dma,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1646
					GFP_KERNEL);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1647
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1648
	if (!rxdr->desc) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1649
		e_err(probe, "Unable to allocate memory for the Rx descriptor "
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1650
		      "ring\n");
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1651
setup_rx_desc_die:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1652
		vfree(rxdr->buffer_info);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1653
		return -ENOMEM;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1654
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1655
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1656
	/* Fix for errata 23, can't cross 64kB boundary */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1657
	if (!e1000_check_64k_bound(adapter, rxdr->desc, rxdr->size)) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1658
		void *olddesc = rxdr->desc;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1659
		dma_addr_t olddma = rxdr->dma;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1660
		e_err(rx_err, "rxdr align check failed: %u bytes at %p\n",
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1661
		      rxdr->size, rxdr->desc);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1662
		/* Try again, without freeing the previous */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1663
		rxdr->desc = dma_alloc_coherent(&pdev->dev, rxdr->size,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1664
						&rxdr->dma, GFP_KERNEL);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1665
		/* Failed allocation, critical failure */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1666
		if (!rxdr->desc) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1667
			dma_free_coherent(&pdev->dev, rxdr->size, olddesc,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1668
					  olddma);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1669
			e_err(probe, "Unable to allocate memory for the Rx "
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1670
			      "descriptor ring\n");
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1671
			goto setup_rx_desc_die;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1672
		}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1673
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1674
		if (!e1000_check_64k_bound(adapter, rxdr->desc, rxdr->size)) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1675
			/* give up */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1676
			dma_free_coherent(&pdev->dev, rxdr->size, rxdr->desc,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1677
					  rxdr->dma);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1678
			dma_free_coherent(&pdev->dev, rxdr->size, olddesc,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1679
					  olddma);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1680
			e_err(probe, "Unable to allocate aligned memory for "
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1681
			      "the Rx descriptor ring\n");
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1682
			goto setup_rx_desc_die;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1683
		} else {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1684
			/* Free old allocation, new allocation was successful */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1685
			dma_free_coherent(&pdev->dev, rxdr->size, olddesc,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1686
					  olddma);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1687
		}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1688
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1689
	memset(rxdr->desc, 0, rxdr->size);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1690
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1691
	rxdr->next_to_clean = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1692
	rxdr->next_to_use = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1693
	rxdr->rx_skb_top = NULL;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1694
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1695
	return 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1696
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1697
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1698
/**
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1699
 * e1000_setup_all_rx_resources - wrapper to allocate Rx resources
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1700
 * 				  (Descriptors) for all queues
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1701
 * @adapter: board private structure
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1702
 *
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1703
 * Return 0 on success, negative on failure
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1704
 **/
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1705
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1706
int e1000_setup_all_rx_resources(struct e1000_adapter *adapter)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1707
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1708
	int i, err = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1709
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1710
	for (i = 0; i < adapter->num_rx_queues; i++) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1711
		err = e1000_setup_rx_resources(adapter, &adapter->rx_ring[i]);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1712
		if (err) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1713
			e_err(probe, "Allocation for Rx Queue %u failed\n", i);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1714
			for (i-- ; i >= 0; i--)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1715
				e1000_free_rx_resources(adapter,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1716
							&adapter->rx_ring[i]);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1717
			break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1718
		}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1719
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1720
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1721
	return err;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1722
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1723
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1724
/**
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1725
 * e1000_setup_rctl - configure the receive control registers
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1726
 * @adapter: Board private structure
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1727
 **/
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1728
static void e1000_setup_rctl(struct e1000_adapter *adapter)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1729
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1730
	struct e1000_hw *hw = &adapter->hw;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1731
	u32 rctl;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1732
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1733
	rctl = er32(RCTL);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1734
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1735
	rctl &= ~(3 << E1000_RCTL_MO_SHIFT);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1736
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1737
	rctl |= E1000_RCTL_EN | E1000_RCTL_BAM |
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1738
		E1000_RCTL_LBM_NO | E1000_RCTL_RDMTS_HALF |
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1739
		(hw->mc_filter_type << E1000_RCTL_MO_SHIFT);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1740
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1741
	if (hw->tbi_compatibility_on == 1)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1742
		rctl |= E1000_RCTL_SBP;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1743
	else
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1744
		rctl &= ~E1000_RCTL_SBP;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1745
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1746
	if (adapter->netdev->mtu <= ETH_DATA_LEN)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1747
		rctl &= ~E1000_RCTL_LPE;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1748
	else
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1749
		rctl |= E1000_RCTL_LPE;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1750
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1751
	/* Setup buffer sizes */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1752
	rctl &= ~E1000_RCTL_SZ_4096;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1753
	rctl |= E1000_RCTL_BSEX;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1754
	switch (adapter->rx_buffer_len) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1755
		case E1000_RXBUFFER_2048:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1756
		default:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1757
			rctl |= E1000_RCTL_SZ_2048;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1758
			rctl &= ~E1000_RCTL_BSEX;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1759
			break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1760
		case E1000_RXBUFFER_4096:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1761
			rctl |= E1000_RCTL_SZ_4096;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1762
			break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1763
		case E1000_RXBUFFER_8192:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1764
			rctl |= E1000_RCTL_SZ_8192;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1765
			break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1766
		case E1000_RXBUFFER_16384:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1767
			rctl |= E1000_RCTL_SZ_16384;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1768
			break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1769
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1770
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1771
	ew32(RCTL, rctl);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1772
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1773
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1774
/**
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1775
 * e1000_configure_rx - Configure 8254x Receive Unit after Reset
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1776
 * @adapter: board private structure
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1777
 *
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1778
 * Configure the Rx unit of the MAC after a reset.
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1779
 **/
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1780
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1781
static void e1000_configure_rx(struct e1000_adapter *adapter)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1782
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1783
	u64 rdba;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1784
	struct e1000_hw *hw = &adapter->hw;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1785
	u32 rdlen, rctl, rxcsum;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1786
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1787
	if (adapter->netdev->mtu > ETH_DATA_LEN) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1788
		rdlen = adapter->rx_ring[0].count *
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1789
		        sizeof(struct e1000_rx_desc);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1790
		adapter->clean_rx = e1000_clean_jumbo_rx_irq;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1791
		adapter->alloc_rx_buf = e1000_alloc_jumbo_rx_buffers;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1792
	} else {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1793
		rdlen = adapter->rx_ring[0].count *
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1794
		        sizeof(struct e1000_rx_desc);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1795
		adapter->clean_rx = e1000_clean_rx_irq;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1796
		adapter->alloc_rx_buf = e1000_alloc_rx_buffers;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1797
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1798
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1799
	/* disable receives while setting up the descriptors */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1800
	rctl = er32(RCTL);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1801
	ew32(RCTL, rctl & ~E1000_RCTL_EN);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1802
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1803
	/* set the Receive Delay Timer Register */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1804
	ew32(RDTR, adapter->rx_int_delay);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1805
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1806
	if (hw->mac_type >= e1000_82540) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1807
		ew32(RADV, adapter->rx_abs_int_delay);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1808
		if (adapter->itr_setting != 0)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1809
			ew32(ITR, 1000000000 / (adapter->itr * 256));
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1810
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1811
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1812
	/* Setup the HW Rx Head and Tail Descriptor Pointers and
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1813
	 * the Base and Length of the Rx Descriptor Ring */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1814
	switch (adapter->num_rx_queues) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1815
	case 1:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1816
	default:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1817
		rdba = adapter->rx_ring[0].dma;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1818
		ew32(RDLEN, rdlen);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1819
		ew32(RDBAH, (rdba >> 32));
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1820
		ew32(RDBAL, (rdba & 0x00000000ffffffffULL));
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1821
		ew32(RDT, 0);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1822
		ew32(RDH, 0);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1823
		adapter->rx_ring[0].rdh = ((hw->mac_type >= e1000_82543) ? E1000_RDH : E1000_82542_RDH);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1824
		adapter->rx_ring[0].rdt = ((hw->mac_type >= e1000_82543) ? E1000_RDT : E1000_82542_RDT);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1825
		break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1826
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1827
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1828
	/* Enable 82543 Receive Checksum Offload for TCP and UDP */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1829
	if (hw->mac_type >= e1000_82543) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1830
		rxcsum = er32(RXCSUM);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1831
		if (adapter->rx_csum)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1832
			rxcsum |= E1000_RXCSUM_TUOFL;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1833
		else
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1834
			/* don't need to clear IPPCSE as it defaults to 0 */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1835
			rxcsum &= ~E1000_RXCSUM_TUOFL;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1836
		ew32(RXCSUM, rxcsum);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1837
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1838
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1839
	/* Enable Receives */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1840
	ew32(RCTL, rctl);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1841
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1842
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1843
/**
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1844
 * e1000_free_tx_resources - Free Tx Resources per Queue
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1845
 * @adapter: board private structure
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1846
 * @tx_ring: Tx descriptor ring for a specific queue
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1847
 *
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1848
 * Free all transmit software resources
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1849
 **/
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1850
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1851
static void e1000_free_tx_resources(struct e1000_adapter *adapter,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1852
				    struct e1000_tx_ring *tx_ring)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1853
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1854
	struct pci_dev *pdev = adapter->pdev;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1855
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1856
	e1000_clean_tx_ring(adapter, tx_ring);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1857
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1858
	vfree(tx_ring->buffer_info);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1859
	tx_ring->buffer_info = NULL;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1860
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1861
	dma_free_coherent(&pdev->dev, tx_ring->size, tx_ring->desc,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1862
			  tx_ring->dma);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1863
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1864
	tx_ring->desc = NULL;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1865
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1866
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1867
/**
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1868
 * e1000_free_all_tx_resources - Free Tx Resources for All Queues
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1869
 * @adapter: board private structure
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1870
 *
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1871
 * Free all transmit software resources
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1872
 **/
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1873
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1874
void e1000_free_all_tx_resources(struct e1000_adapter *adapter)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1875
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1876
	int i;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1877
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1878
	for (i = 0; i < adapter->num_tx_queues; i++)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1879
		e1000_free_tx_resources(adapter, &adapter->tx_ring[i]);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1880
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1881
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1882
static void e1000_unmap_and_free_tx_resource(struct e1000_adapter *adapter,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1883
					     struct e1000_buffer *buffer_info)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1884
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1885
	if (buffer_info->dma) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1886
		if (buffer_info->mapped_as_page)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1887
			dma_unmap_page(&adapter->pdev->dev, buffer_info->dma,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1888
				       buffer_info->length, DMA_TO_DEVICE);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1889
		else
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1890
			dma_unmap_single(&adapter->pdev->dev, buffer_info->dma,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1891
					 buffer_info->length,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1892
					 DMA_TO_DEVICE);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1893
		buffer_info->dma = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1894
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1895
	if (buffer_info->skb) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1896
		dev_kfree_skb_any(buffer_info->skb);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1897
		buffer_info->skb = NULL;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1898
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1899
	buffer_info->time_stamp = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1900
	/* buffer_info must be completely set up in the transmit path */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1901
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1902
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1903
/**
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1904
 * e1000_clean_tx_ring - Free Tx Buffers
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1905
 * @adapter: board private structure
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1906
 * @tx_ring: ring to be cleaned
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1907
 **/
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1908
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1909
static void e1000_clean_tx_ring(struct e1000_adapter *adapter,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1910
				struct e1000_tx_ring *tx_ring)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1911
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1912
	struct e1000_hw *hw = &adapter->hw;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1913
	struct e1000_buffer *buffer_info;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1914
	unsigned long size;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1915
	unsigned int i;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1916
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1917
	/* Free all the Tx ring sk_buffs */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1918
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1919
	for (i = 0; i < tx_ring->count; i++) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1920
		buffer_info = &tx_ring->buffer_info[i];
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1921
		e1000_unmap_and_free_tx_resource(adapter, buffer_info);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1922
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1923
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1924
	size = sizeof(struct e1000_buffer) * tx_ring->count;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1925
	memset(tx_ring->buffer_info, 0, size);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1926
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1927
	/* Zero out the descriptor ring */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1928
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1929
	memset(tx_ring->desc, 0, tx_ring->size);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1930
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1931
	tx_ring->next_to_use = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1932
	tx_ring->next_to_clean = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1933
	tx_ring->last_tx_tso = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1934
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1935
	writel(0, hw->hw_addr + tx_ring->tdh);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1936
	writel(0, hw->hw_addr + tx_ring->tdt);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1937
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1938
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1939
/**
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1940
 * e1000_clean_all_tx_rings - Free Tx Buffers for all queues
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1941
 * @adapter: board private structure
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1942
 **/
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1943
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1944
static void e1000_clean_all_tx_rings(struct e1000_adapter *adapter)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1945
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1946
	int i;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1947
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1948
	for (i = 0; i < adapter->num_tx_queues; i++)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1949
		e1000_clean_tx_ring(adapter, &adapter->tx_ring[i]);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1950
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1951
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1952
/**
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1953
 * e1000_free_rx_resources - Free Rx Resources
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1954
 * @adapter: board private structure
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1955
 * @rx_ring: ring to clean the resources from
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1956
 *
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1957
 * Free all receive software resources
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1958
 **/
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1959
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1960
static void e1000_free_rx_resources(struct e1000_adapter *adapter,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1961
				    struct e1000_rx_ring *rx_ring)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1962
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1963
	struct pci_dev *pdev = adapter->pdev;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1964
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1965
	e1000_clean_rx_ring(adapter, rx_ring);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1966
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1967
	vfree(rx_ring->buffer_info);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1968
	rx_ring->buffer_info = NULL;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1969
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1970
	dma_free_coherent(&pdev->dev, rx_ring->size, rx_ring->desc,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1971
			  rx_ring->dma);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1972
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1973
	rx_ring->desc = NULL;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1974
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1975
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1976
/**
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1977
 * e1000_free_all_rx_resources - Free Rx Resources for All Queues
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1978
 * @adapter: board private structure
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1979
 *
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1980
 * Free all receive software resources
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1981
 **/
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1982
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1983
void e1000_free_all_rx_resources(struct e1000_adapter *adapter)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1984
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1985
	int i;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1986
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1987
	for (i = 0; i < adapter->num_rx_queues; i++)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1988
		e1000_free_rx_resources(adapter, &adapter->rx_ring[i]);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1989
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1990
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1991
/**
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1992
 * e1000_clean_rx_ring - Free Rx Buffers per Queue
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1993
 * @adapter: board private structure
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1994
 * @rx_ring: ring to free buffers from
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1995
 **/
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1996
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1997
static void e1000_clean_rx_ring(struct e1000_adapter *adapter,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1998
				struct e1000_rx_ring *rx_ring)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1999
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2000
	struct e1000_hw *hw = &adapter->hw;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2001
	struct e1000_buffer *buffer_info;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2002
	struct pci_dev *pdev = adapter->pdev;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2003
	unsigned long size;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2004
	unsigned int i;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2005
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2006
	/* Free all the Rx ring sk_buffs */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2007
	for (i = 0; i < rx_ring->count; i++) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2008
		buffer_info = &rx_ring->buffer_info[i];
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2009
		if (buffer_info->dma &&
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2010
		    adapter->clean_rx == e1000_clean_rx_irq) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2011
			dma_unmap_single(&pdev->dev, buffer_info->dma,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2012
			                 buffer_info->length,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2013
					 DMA_FROM_DEVICE);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2014
		} else if (buffer_info->dma &&
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2015
		           adapter->clean_rx == e1000_clean_jumbo_rx_irq) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2016
			dma_unmap_page(&pdev->dev, buffer_info->dma,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2017
				       buffer_info->length,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2018
				       DMA_FROM_DEVICE);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2019
		}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2020
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2021
		buffer_info->dma = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2022
		if (buffer_info->page) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2023
			put_page(buffer_info->page);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2024
			buffer_info->page = NULL;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2025
		}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2026
		if (buffer_info->skb) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2027
			dev_kfree_skb(buffer_info->skb);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2028
			buffer_info->skb = NULL;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2029
		}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2030
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2031
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2032
	/* there also may be some cached data from a chained receive */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2033
	if (rx_ring->rx_skb_top) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2034
		dev_kfree_skb(rx_ring->rx_skb_top);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2035
		rx_ring->rx_skb_top = NULL;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2036
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2037
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2038
	size = sizeof(struct e1000_buffer) * rx_ring->count;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2039
	memset(rx_ring->buffer_info, 0, size);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2040
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2041
	/* Zero out the descriptor ring */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2042
	memset(rx_ring->desc, 0, rx_ring->size);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2043
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2044
	rx_ring->next_to_clean = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2045
	rx_ring->next_to_use = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2046
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2047
	writel(0, hw->hw_addr + rx_ring->rdh);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2048
	writel(0, hw->hw_addr + rx_ring->rdt);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2049
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2050
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2051
/**
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2052
 * e1000_clean_all_rx_rings - Free Rx Buffers for all queues
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2053
 * @adapter: board private structure
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2054
 **/
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2055
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2056
static void e1000_clean_all_rx_rings(struct e1000_adapter *adapter)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2057
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2058
	int i;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2059
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2060
	for (i = 0; i < adapter->num_rx_queues; i++)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2061
		e1000_clean_rx_ring(adapter, &adapter->rx_ring[i]);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2062
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2063
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2064
/* The 82542 2.0 (revision 2) needs to have the receive unit in reset
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2065
 * and memory write and invalidate disabled for certain operations
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2066
 */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2067
static void e1000_enter_82542_rst(struct e1000_adapter *adapter)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2068
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2069
	struct e1000_hw *hw = &adapter->hw;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2070
	struct net_device *netdev = adapter->netdev;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2071
	u32 rctl;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2072
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2073
	e1000_pci_clear_mwi(hw);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2074
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2075
	rctl = er32(RCTL);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2076
	rctl |= E1000_RCTL_RST;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2077
	ew32(RCTL, rctl);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2078
	E1000_WRITE_FLUSH();
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2079
	mdelay(5);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2080
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2081
	if (netif_running(netdev))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2082
		e1000_clean_all_rx_rings(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2083
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2084
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2085
static void e1000_leave_82542_rst(struct e1000_adapter *adapter)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2086
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2087
	struct e1000_hw *hw = &adapter->hw;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2088
	struct net_device *netdev = adapter->netdev;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2089
	u32 rctl;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2090
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2091
	rctl = er32(RCTL);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2092
	rctl &= ~E1000_RCTL_RST;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2093
	ew32(RCTL, rctl);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2094
	E1000_WRITE_FLUSH();
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2095
	mdelay(5);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2096
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2097
	if (hw->pci_cmd_word & PCI_COMMAND_INVALIDATE)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2098
		e1000_pci_set_mwi(hw);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2099
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2100
	if (netif_running(netdev)) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2101
		/* No need to loop, because 82542 supports only 1 queue */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2102
		struct e1000_rx_ring *ring = &adapter->rx_ring[0];
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2103
		e1000_configure_rx(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2104
		adapter->alloc_rx_buf(adapter, ring, E1000_DESC_UNUSED(ring));
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2105
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2106
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2107
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2108
/**
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2109
 * e1000_set_mac - Change the Ethernet Address of the NIC
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2110
 * @netdev: network interface device structure
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2111
 * @p: pointer to an address structure
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2112
 *
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2113
 * Returns 0 on success, negative on failure
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2114
 **/
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2115
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2116
static int e1000_set_mac(struct net_device *netdev, void *p)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2117
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2118
	struct e1000_adapter *adapter = netdev_priv(netdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2119
	struct e1000_hw *hw = &adapter->hw;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2120
	struct sockaddr *addr = p;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2121
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2122
	if (!is_valid_ether_addr(addr->sa_data))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2123
		return -EADDRNOTAVAIL;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2124
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2125
	/* 82542 2.0 needs to be in reset to write receive address registers */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2126
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2127
	if (hw->mac_type == e1000_82542_rev2_0)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2128
		e1000_enter_82542_rst(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2129
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2130
	memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2131
	memcpy(hw->mac_addr, addr->sa_data, netdev->addr_len);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2132
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2133
	e1000_rar_set(hw, hw->mac_addr, 0);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2134
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2135
	if (hw->mac_type == e1000_82542_rev2_0)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2136
		e1000_leave_82542_rst(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2137
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2138
	return 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2139
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2140
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2141
/**
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2142
 * e1000_set_rx_mode - Secondary Unicast, Multicast and Promiscuous mode set
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2143
 * @netdev: network interface device structure
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2144
 *
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2145
 * The set_rx_mode entry point is called whenever the unicast or multicast
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2146
 * address lists or the network interface flags are updated. This routine is
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2147
 * responsible for configuring the hardware for proper unicast, multicast,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2148
 * promiscuous mode, and all-multi behavior.
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2149
 **/
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2150
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2151
static void e1000_set_rx_mode(struct net_device *netdev)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2152
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2153
	struct e1000_adapter *adapter = netdev_priv(netdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2154
	struct e1000_hw *hw = &adapter->hw;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2155
	struct netdev_hw_addr *ha;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2156
	bool use_uc = false;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2157
	u32 rctl;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2158
	u32 hash_value;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2159
	int i, rar_entries = E1000_RAR_ENTRIES;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2160
	int mta_reg_count = E1000_NUM_MTA_REGISTERS;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2161
	u32 *mcarray = kcalloc(mta_reg_count, sizeof(u32), GFP_ATOMIC);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2162
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2163
	if (!mcarray) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2164
		e_err(probe, "memory allocation failed\n");
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2165
		return;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2166
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2167
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2168
	/* Check for Promiscuous and All Multicast modes */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2169
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2170
	rctl = er32(RCTL);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2171
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2172
	if (netdev->flags & IFF_PROMISC) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2173
		rctl |= (E1000_RCTL_UPE | E1000_RCTL_MPE);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2174
		rctl &= ~E1000_RCTL_VFE;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2175
	} else {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2176
		if (netdev->flags & IFF_ALLMULTI)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2177
			rctl |= E1000_RCTL_MPE;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2178
		else
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2179
			rctl &= ~E1000_RCTL_MPE;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2180
		/* Enable VLAN filter if there is a VLAN */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2181
		if (adapter->vlgrp)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2182
			rctl |= E1000_RCTL_VFE;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2183
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2184
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2185
	if (netdev_uc_count(netdev) > rar_entries - 1) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2186
		rctl |= E1000_RCTL_UPE;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2187
	} else if (!(netdev->flags & IFF_PROMISC)) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2188
		rctl &= ~E1000_RCTL_UPE;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2189
		use_uc = true;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2190
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2191
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2192
	ew32(RCTL, rctl);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2193
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2194
	/* 82542 2.0 needs to be in reset to write receive address registers */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2195
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2196
	if (hw->mac_type == e1000_82542_rev2_0)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2197
		e1000_enter_82542_rst(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2198
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2199
	/* load the first 14 addresses into the exact filters 1-14. Unicast
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2200
	 * addresses take precedence to avoid disabling unicast filtering
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2201
	 * when possible.
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2202
	 *
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2203
	 * RAR 0 is used for the station MAC adddress
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2204
	 * if there are not 14 addresses, go ahead and clear the filters
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2205
	 */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2206
	i = 1;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2207
	if (use_uc)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2208
		netdev_for_each_uc_addr(ha, netdev) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2209
			if (i == rar_entries)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2210
				break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2211
			e1000_rar_set(hw, ha->addr, i++);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2212
		}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2213
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2214
	netdev_for_each_mc_addr(ha, netdev) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2215
		if (i == rar_entries) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2216
			/* load any remaining addresses into the hash table */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2217
			u32 hash_reg, hash_bit, mta;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2218
			hash_value = e1000_hash_mc_addr(hw, ha->addr);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2219
			hash_reg = (hash_value >> 5) & 0x7F;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2220
			hash_bit = hash_value & 0x1F;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2221
			mta = (1 << hash_bit);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2222
			mcarray[hash_reg] |= mta;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2223
		} else {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2224
			e1000_rar_set(hw, ha->addr, i++);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2225
		}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2226
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2227
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2228
	for (; i < rar_entries; i++) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2229
		E1000_WRITE_REG_ARRAY(hw, RA, i << 1, 0);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2230
		E1000_WRITE_FLUSH();
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2231
		E1000_WRITE_REG_ARRAY(hw, RA, (i << 1) + 1, 0);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2232
		E1000_WRITE_FLUSH();
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2233
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2234
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2235
	/* write the hash table completely, write from bottom to avoid
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2236
	 * both stupid write combining chipsets, and flushing each write */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2237
	for (i = mta_reg_count - 1; i >= 0 ; i--) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2238
		/*
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2239
		 * If we are on an 82544 has an errata where writing odd
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2240
		 * offsets overwrites the previous even offset, but writing
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2241
		 * backwards over the range solves the issue by always
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2242
		 * writing the odd offset first
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2243
		 */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2244
		E1000_WRITE_REG_ARRAY(hw, MTA, i, mcarray[i]);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2245
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2246
	E1000_WRITE_FLUSH();
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2247
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2248
	if (hw->mac_type == e1000_82542_rev2_0)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2249
		e1000_leave_82542_rst(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2250
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2251
	kfree(mcarray);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2252
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2253
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2254
/* Need to wait a few seconds after link up to get diagnostic information from
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2255
 * the phy */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2256
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2257
static void e1000_update_phy_info(unsigned long data)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2258
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2259
	struct e1000_adapter *adapter = (struct e1000_adapter *)data;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2260
	schedule_work(&adapter->phy_info_task);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2261
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2262
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2263
static void e1000_update_phy_info_task(struct work_struct *work)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2264
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2265
	struct e1000_adapter *adapter = container_of(work,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2266
	                                             struct e1000_adapter,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2267
	                                             phy_info_task);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2268
	struct e1000_hw *hw = &adapter->hw;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2269
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2270
	rtnl_lock();
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2271
	e1000_phy_get_info(hw, &adapter->phy_info);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2272
	rtnl_unlock();
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2273
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2274
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2275
/**
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2276
 * e1000_82547_tx_fifo_stall - Timer Call-back
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2277
 * @data: pointer to adapter cast into an unsigned long
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2278
 **/
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2279
static void e1000_82547_tx_fifo_stall(unsigned long data)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2280
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2281
	struct e1000_adapter *adapter = (struct e1000_adapter *)data;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2282
	schedule_work(&adapter->fifo_stall_task);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2283
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2284
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2285
/**
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2286
 * e1000_82547_tx_fifo_stall_task - task to complete work
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2287
 * @work: work struct contained inside adapter struct
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2288
 **/
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2289
static void e1000_82547_tx_fifo_stall_task(struct work_struct *work)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2290
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2291
	struct e1000_adapter *adapter = container_of(work,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2292
	                                             struct e1000_adapter,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2293
	                                             fifo_stall_task);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2294
	struct e1000_hw *hw = &adapter->hw;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2295
	struct net_device *netdev = adapter->netdev;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2296
	u32 tctl;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2297
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2298
	rtnl_lock();
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2299
	if (atomic_read(&adapter->tx_fifo_stall)) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2300
		if ((er32(TDT) == er32(TDH)) &&
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2301
		   (er32(TDFT) == er32(TDFH)) &&
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2302
		   (er32(TDFTS) == er32(TDFHS))) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2303
			tctl = er32(TCTL);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2304
			ew32(TCTL, tctl & ~E1000_TCTL_EN);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2305
			ew32(TDFT, adapter->tx_head_addr);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2306
			ew32(TDFH, adapter->tx_head_addr);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2307
			ew32(TDFTS, adapter->tx_head_addr);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2308
			ew32(TDFHS, adapter->tx_head_addr);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2309
			ew32(TCTL, tctl);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2310
			E1000_WRITE_FLUSH();
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2311
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2312
			adapter->tx_fifo_head = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2313
			atomic_set(&adapter->tx_fifo_stall, 0);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2314
			netif_wake_queue(netdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2315
		} else if (!test_bit(__E1000_DOWN, &adapter->flags)) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2316
			mod_timer(&adapter->tx_fifo_stall_timer, jiffies + 1);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2317
		}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2318
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2319
	rtnl_unlock();
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2320
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2321
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2322
bool e1000_has_link(struct e1000_adapter *adapter)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2323
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2324
	struct e1000_hw *hw = &adapter->hw;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2325
	bool link_active = false;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2326
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2327
	/* get_link_status is set on LSC (link status) interrupt or
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2328
	 * rx sequence error interrupt.  get_link_status will stay
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2329
	 * false until the e1000_check_for_link establishes link
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2330
	 * for copper adapters ONLY
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2331
	 */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2332
	switch (hw->media_type) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2333
	case e1000_media_type_copper:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2334
		if (hw->get_link_status) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2335
			e1000_check_for_link(hw);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2336
			link_active = !hw->get_link_status;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2337
		} else {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2338
			link_active = true;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2339
		}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2340
		break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2341
	case e1000_media_type_fiber:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2342
		e1000_check_for_link(hw);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2343
		link_active = !!(er32(STATUS) & E1000_STATUS_LU);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2344
		break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2345
	case e1000_media_type_internal_serdes:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2346
		e1000_check_for_link(hw);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2347
		link_active = hw->serdes_has_link;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2348
		break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2349
	default:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2350
		break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2351
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2352
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2353
	return link_active;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2354
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2355
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2356
/**
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2357
 * e1000_watchdog - Timer Call-back
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2358
 * @data: pointer to adapter cast into an unsigned long
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2359
 **/
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2360
static void e1000_watchdog(unsigned long data)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2361
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2362
	struct e1000_adapter *adapter = (struct e1000_adapter *)data;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2363
	struct e1000_hw *hw = &adapter->hw;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2364
	struct net_device *netdev = adapter->netdev;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2365
	struct e1000_tx_ring *txdr = adapter->tx_ring;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2366
	u32 link, tctl;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2367
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2368
	link = e1000_has_link(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2369
	if ((netif_carrier_ok(netdev)) && link)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2370
		goto link_up;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2371
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2372
	if (link) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2373
		if (!netif_carrier_ok(netdev)) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2374
			u32 ctrl;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2375
			bool txb2b = true;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2376
			/* update snapshot of PHY registers on LSC */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2377
			e1000_get_speed_and_duplex(hw,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2378
			                           &adapter->link_speed,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2379
			                           &adapter->link_duplex);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2380
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2381
			ctrl = er32(CTRL);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2382
			pr_info("%s NIC Link is Up %d Mbps %s, "
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2383
				"Flow Control: %s\n",
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2384
				netdev->name,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2385
				adapter->link_speed,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2386
				adapter->link_duplex == FULL_DUPLEX ?
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2387
				"Full Duplex" : "Half Duplex",
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2388
				((ctrl & E1000_CTRL_TFCE) && (ctrl &
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2389
				E1000_CTRL_RFCE)) ? "RX/TX" : ((ctrl &
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2390
				E1000_CTRL_RFCE) ? "RX" : ((ctrl &
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2391
				E1000_CTRL_TFCE) ? "TX" : "None")));
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2392
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2393
			/* adjust timeout factor according to speed/duplex */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2394
			adapter->tx_timeout_factor = 1;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2395
			switch (adapter->link_speed) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2396
			case SPEED_10:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2397
				txb2b = false;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2398
				adapter->tx_timeout_factor = 16;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2399
				break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2400
			case SPEED_100:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2401
				txb2b = false;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2402
				/* maybe add some timeout factor ? */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2403
				break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2404
			}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2405
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2406
			/* enable transmits in the hardware */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2407
			tctl = er32(TCTL);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2408
			tctl |= E1000_TCTL_EN;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2409
			ew32(TCTL, tctl);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2410
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2411
			netif_carrier_on(netdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2412
			if (!test_bit(__E1000_DOWN, &adapter->flags))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2413
				mod_timer(&adapter->phy_info_timer,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2414
				          round_jiffies(jiffies + 2 * HZ));
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2415
			adapter->smartspeed = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2416
		}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2417
	} else {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2418
		if (netif_carrier_ok(netdev)) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2419
			adapter->link_speed = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2420
			adapter->link_duplex = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2421
			pr_info("%s NIC Link is Down\n",
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2422
				netdev->name);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2423
			netif_carrier_off(netdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2424
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2425
			if (!test_bit(__E1000_DOWN, &adapter->flags))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2426
				mod_timer(&adapter->phy_info_timer,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2427
				          round_jiffies(jiffies + 2 * HZ));
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2428
		}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2429
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2430
		e1000_smartspeed(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2431
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2432
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2433
link_up:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2434
	e1000_update_stats(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2435
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2436
	hw->tx_packet_delta = adapter->stats.tpt - adapter->tpt_old;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2437
	adapter->tpt_old = adapter->stats.tpt;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2438
	hw->collision_delta = adapter->stats.colc - adapter->colc_old;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2439
	adapter->colc_old = adapter->stats.colc;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2440
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2441
	adapter->gorcl = adapter->stats.gorcl - adapter->gorcl_old;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2442
	adapter->gorcl_old = adapter->stats.gorcl;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2443
	adapter->gotcl = adapter->stats.gotcl - adapter->gotcl_old;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2444
	adapter->gotcl_old = adapter->stats.gotcl;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2445
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2446
	e1000_update_adaptive(hw);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2447
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2448
	if (!netif_carrier_ok(netdev)) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2449
		if (E1000_DESC_UNUSED(txdr) + 1 < txdr->count) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2450
			/* We've lost link, so the controller stops DMA,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2451
			 * but we've got queued Tx work that's never going
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2452
			 * to get done, so reset controller to flush Tx.
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2453
			 * (Do the reset outside of interrupt context). */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2454
			adapter->tx_timeout_count++;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2455
			schedule_work(&adapter->reset_task);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2456
			/* return immediately since reset is imminent */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2457
			return;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2458
		}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2459
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2460
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2461
	/* Simple mode for Interrupt Throttle Rate (ITR) */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2462
	if (hw->mac_type >= e1000_82540 && adapter->itr_setting == 4) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2463
		/*
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2464
		 * Symmetric Tx/Rx gets a reduced ITR=2000;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2465
		 * Total asymmetrical Tx or Rx gets ITR=8000;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2466
		 * everyone else is between 2000-8000.
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2467
		 */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2468
		u32 goc = (adapter->gotcl + adapter->gorcl) / 10000;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2469
		u32 dif = (adapter->gotcl > adapter->gorcl ?
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2470
			    adapter->gotcl - adapter->gorcl :
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2471
			    adapter->gorcl - adapter->gotcl) / 10000;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2472
		u32 itr = goc > 0 ? (dif * 6000 / goc + 2000) : 8000;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2473
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2474
		ew32(ITR, 1000000000 / (itr * 256));
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2475
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2476
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2477
	/* Cause software interrupt to ensure rx ring is cleaned */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2478
	ew32(ICS, E1000_ICS_RXDMT0);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2479
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2480
	/* Force detection of hung controller every watchdog period */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2481
	adapter->detect_tx_hung = true;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2482
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2483
	/* Reset the timer */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2484
	if (!test_bit(__E1000_DOWN, &adapter->flags))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2485
		mod_timer(&adapter->watchdog_timer,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2486
		          round_jiffies(jiffies + 2 * HZ));
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2487
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2488
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2489
enum latency_range {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2490
	lowest_latency = 0,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2491
	low_latency = 1,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2492
	bulk_latency = 2,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2493
	latency_invalid = 255
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2494
};
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2495
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2496
/**
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2497
 * e1000_update_itr - update the dynamic ITR value based on statistics
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2498
 * @adapter: pointer to adapter
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2499
 * @itr_setting: current adapter->itr
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2500
 * @packets: the number of packets during this measurement interval
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2501
 * @bytes: the number of bytes during this measurement interval
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2502
 *
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2503
 *      Stores a new ITR value based on packets and byte
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2504
 *      counts during the last interrupt.  The advantage of per interrupt
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2505
 *      computation is faster updates and more accurate ITR for the current
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2506
 *      traffic pattern.  Constants in this function were computed
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2507
 *      based on theoretical maximum wire speed and thresholds were set based
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2508
 *      on testing data as well as attempting to minimize response time
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2509
 *      while increasing bulk throughput.
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2510
 *      this functionality is controlled by the InterruptThrottleRate module
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2511
 *      parameter (see e1000_param.c)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2512
 **/
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2513
static unsigned int e1000_update_itr(struct e1000_adapter *adapter,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2514
				     u16 itr_setting, int packets, int bytes)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2515
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2516
	unsigned int retval = itr_setting;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2517
	struct e1000_hw *hw = &adapter->hw;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2518
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2519
	if (unlikely(hw->mac_type < e1000_82540))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2520
		goto update_itr_done;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2521
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2522
	if (packets == 0)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2523
		goto update_itr_done;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2524
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2525
	switch (itr_setting) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2526
	case lowest_latency:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2527
		/* jumbo frames get bulk treatment*/
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2528
		if (bytes/packets > 8000)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2529
			retval = bulk_latency;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2530
		else if ((packets < 5) && (bytes > 512))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2531
			retval = low_latency;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2532
		break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2533
	case low_latency:  /* 50 usec aka 20000 ints/s */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2534
		if (bytes > 10000) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2535
			/* jumbo frames need bulk latency setting */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2536
			if (bytes/packets > 8000)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2537
				retval = bulk_latency;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2538
			else if ((packets < 10) || ((bytes/packets) > 1200))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2539
				retval = bulk_latency;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2540
			else if ((packets > 35))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2541
				retval = lowest_latency;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2542
		} else if (bytes/packets > 2000)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2543
			retval = bulk_latency;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2544
		else if (packets <= 2 && bytes < 512)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2545
			retval = lowest_latency;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2546
		break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2547
	case bulk_latency: /* 250 usec aka 4000 ints/s */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2548
		if (bytes > 25000) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2549
			if (packets > 35)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2550
				retval = low_latency;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2551
		} else if (bytes < 6000) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2552
			retval = low_latency;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2553
		}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2554
		break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2555
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2556
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2557
update_itr_done:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2558
	return retval;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2559
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2560
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2561
static void e1000_set_itr(struct e1000_adapter *adapter)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2562
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2563
	struct e1000_hw *hw = &adapter->hw;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2564
	u16 current_itr;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2565
	u32 new_itr = adapter->itr;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2566
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2567
	if (unlikely(hw->mac_type < e1000_82540))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2568
		return;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2569
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2570
	/* for non-gigabit speeds, just fix the interrupt rate at 4000 */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2571
	if (unlikely(adapter->link_speed != SPEED_1000)) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2572
		current_itr = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2573
		new_itr = 4000;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2574
		goto set_itr_now;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2575
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2576
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2577
	adapter->tx_itr = e1000_update_itr(adapter,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2578
	                            adapter->tx_itr,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2579
	                            adapter->total_tx_packets,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2580
	                            adapter->total_tx_bytes);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2581
	/* conservative mode (itr 3) eliminates the lowest_latency setting */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2582
	if (adapter->itr_setting == 3 && adapter->tx_itr == lowest_latency)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2583
		adapter->tx_itr = low_latency;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2584
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2585
	adapter->rx_itr = e1000_update_itr(adapter,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2586
	                            adapter->rx_itr,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2587
	                            adapter->total_rx_packets,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2588
	                            adapter->total_rx_bytes);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2589
	/* conservative mode (itr 3) eliminates the lowest_latency setting */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2590
	if (adapter->itr_setting == 3 && adapter->rx_itr == lowest_latency)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2591
		adapter->rx_itr = low_latency;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2592
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2593
	current_itr = max(adapter->rx_itr, adapter->tx_itr);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2594
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2595
	switch (current_itr) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2596
	/* counts and packets in update_itr are dependent on these numbers */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2597
	case lowest_latency:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2598
		new_itr = 70000;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2599
		break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2600
	case low_latency:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2601
		new_itr = 20000; /* aka hwitr = ~200 */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2602
		break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2603
	case bulk_latency:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2604
		new_itr = 4000;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2605
		break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2606
	default:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2607
		break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2608
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2609
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2610
set_itr_now:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2611
	if (new_itr != adapter->itr) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2612
		/* this attempts to bias the interrupt rate towards Bulk
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2613
		 * by adding intermediate steps when interrupt rate is
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2614
		 * increasing */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2615
		new_itr = new_itr > adapter->itr ?
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2616
		             min(adapter->itr + (new_itr >> 2), new_itr) :
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2617
		             new_itr;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2618
		adapter->itr = new_itr;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2619
		ew32(ITR, 1000000000 / (new_itr * 256));
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2620
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2621
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2622
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2623
#define E1000_TX_FLAGS_CSUM		0x00000001
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2624
#define E1000_TX_FLAGS_VLAN		0x00000002
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2625
#define E1000_TX_FLAGS_TSO		0x00000004
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2626
#define E1000_TX_FLAGS_IPV4		0x00000008
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2627
#define E1000_TX_FLAGS_VLAN_MASK	0xffff0000
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2628
#define E1000_TX_FLAGS_VLAN_SHIFT	16
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2629
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2630
static int e1000_tso(struct e1000_adapter *adapter,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2631
		     struct e1000_tx_ring *tx_ring, struct sk_buff *skb)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2632
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2633
	struct e1000_context_desc *context_desc;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2634
	struct e1000_buffer *buffer_info;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2635
	unsigned int i;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2636
	u32 cmd_length = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2637
	u16 ipcse = 0, tucse, mss;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2638
	u8 ipcss, ipcso, tucss, tucso, hdr_len;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2639
	int err;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2640
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2641
	if (skb_is_gso(skb)) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2642
		if (skb_header_cloned(skb)) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2643
			err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2644
			if (err)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2645
				return err;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2646
		}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2647
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2648
		hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2649
		mss = skb_shinfo(skb)->gso_size;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2650
		if (skb->protocol == htons(ETH_P_IP)) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2651
			struct iphdr *iph = ip_hdr(skb);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2652
			iph->tot_len = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2653
			iph->check = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2654
			tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2655
								 iph->daddr, 0,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2656
								 IPPROTO_TCP,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2657
								 0);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2658
			cmd_length = E1000_TXD_CMD_IP;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2659
			ipcse = skb_transport_offset(skb) - 1;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2660
		} else if (skb->protocol == htons(ETH_P_IPV6)) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2661
			ipv6_hdr(skb)->payload_len = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2662
			tcp_hdr(skb)->check =
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2663
				~csum_ipv6_magic(&ipv6_hdr(skb)->saddr,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2664
						 &ipv6_hdr(skb)->daddr,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2665
						 0, IPPROTO_TCP, 0);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2666
			ipcse = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2667
		}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2668
		ipcss = skb_network_offset(skb);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2669
		ipcso = (void *)&(ip_hdr(skb)->check) - (void *)skb->data;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2670
		tucss = skb_transport_offset(skb);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2671
		tucso = (void *)&(tcp_hdr(skb)->check) - (void *)skb->data;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2672
		tucse = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2673
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2674
		cmd_length |= (E1000_TXD_CMD_DEXT | E1000_TXD_CMD_TSE |
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2675
			       E1000_TXD_CMD_TCP | (skb->len - (hdr_len)));
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2676
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2677
		i = tx_ring->next_to_use;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2678
		context_desc = E1000_CONTEXT_DESC(*tx_ring, i);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2679
		buffer_info = &tx_ring->buffer_info[i];
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2680
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2681
		context_desc->lower_setup.ip_fields.ipcss  = ipcss;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2682
		context_desc->lower_setup.ip_fields.ipcso  = ipcso;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2683
		context_desc->lower_setup.ip_fields.ipcse  = cpu_to_le16(ipcse);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2684
		context_desc->upper_setup.tcp_fields.tucss = tucss;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2685
		context_desc->upper_setup.tcp_fields.tucso = tucso;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2686
		context_desc->upper_setup.tcp_fields.tucse = cpu_to_le16(tucse);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2687
		context_desc->tcp_seg_setup.fields.mss     = cpu_to_le16(mss);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2688
		context_desc->tcp_seg_setup.fields.hdr_len = hdr_len;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2689
		context_desc->cmd_and_length = cpu_to_le32(cmd_length);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2690
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2691
		buffer_info->time_stamp = jiffies;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2692
		buffer_info->next_to_watch = i;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2693
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2694
		if (++i == tx_ring->count) i = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2695
		tx_ring->next_to_use = i;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2696
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2697
		return true;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2698
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2699
	return false;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2700
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2701
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2702
static bool e1000_tx_csum(struct e1000_adapter *adapter,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2703
			  struct e1000_tx_ring *tx_ring, struct sk_buff *skb)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2704
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2705
	struct e1000_context_desc *context_desc;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2706
	struct e1000_buffer *buffer_info;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2707
	unsigned int i;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2708
	u8 css;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2709
	u32 cmd_len = E1000_TXD_CMD_DEXT;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2710
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2711
	if (skb->ip_summed != CHECKSUM_PARTIAL)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2712
		return false;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2713
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2714
	switch (skb->protocol) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2715
	case cpu_to_be16(ETH_P_IP):
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2716
		if (ip_hdr(skb)->protocol == IPPROTO_TCP)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2717
			cmd_len |= E1000_TXD_CMD_TCP;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2718
		break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2719
	case cpu_to_be16(ETH_P_IPV6):
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2720
		/* XXX not handling all IPV6 headers */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2721
		if (ipv6_hdr(skb)->nexthdr == IPPROTO_TCP)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2722
			cmd_len |= E1000_TXD_CMD_TCP;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2723
		break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2724
	default:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2725
		if (unlikely(net_ratelimit()))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2726
			e_warn(drv, "checksum_partial proto=%x!\n",
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2727
			       skb->protocol);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2728
		break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2729
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2730
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2731
	css = skb_transport_offset(skb);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2732
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2733
	i = tx_ring->next_to_use;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2734
	buffer_info = &tx_ring->buffer_info[i];
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2735
	context_desc = E1000_CONTEXT_DESC(*tx_ring, i);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2736
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2737
	context_desc->lower_setup.ip_config = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2738
	context_desc->upper_setup.tcp_fields.tucss = css;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2739
	context_desc->upper_setup.tcp_fields.tucso =
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2740
		css + skb->csum_offset;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2741
	context_desc->upper_setup.tcp_fields.tucse = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2742
	context_desc->tcp_seg_setup.data = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2743
	context_desc->cmd_and_length = cpu_to_le32(cmd_len);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2744
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2745
	buffer_info->time_stamp = jiffies;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2746
	buffer_info->next_to_watch = i;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2747
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2748
	if (unlikely(++i == tx_ring->count)) i = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2749
	tx_ring->next_to_use = i;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2750
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2751
	return true;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2752
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2753
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2754
#define E1000_MAX_TXD_PWR	12
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2755
#define E1000_MAX_DATA_PER_TXD	(1<<E1000_MAX_TXD_PWR)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2756
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2757
static int e1000_tx_map(struct e1000_adapter *adapter,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2758
			struct e1000_tx_ring *tx_ring,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2759
			struct sk_buff *skb, unsigned int first,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2760
			unsigned int max_per_txd, unsigned int nr_frags,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2761
			unsigned int mss)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2762
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2763
	struct e1000_hw *hw = &adapter->hw;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2764
	struct pci_dev *pdev = adapter->pdev;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2765
	struct e1000_buffer *buffer_info;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2766
	unsigned int len = skb_headlen(skb);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2767
	unsigned int offset = 0, size, count = 0, i;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2768
	unsigned int f;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2769
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2770
	i = tx_ring->next_to_use;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2771
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2772
	while (len) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2773
		buffer_info = &tx_ring->buffer_info[i];
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2774
		size = min(len, max_per_txd);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2775
		/* Workaround for Controller erratum --
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2776
		 * descriptor for non-tso packet in a linear SKB that follows a
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2777
		 * tso gets written back prematurely before the data is fully
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2778
		 * DMA'd to the controller */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2779
		if (!skb->data_len && tx_ring->last_tx_tso &&
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2780
		    !skb_is_gso(skb)) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2781
			tx_ring->last_tx_tso = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2782
			size -= 4;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2783
		}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2784
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2785
		/* Workaround for premature desc write-backs
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2786
		 * in TSO mode.  Append 4-byte sentinel desc */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2787
		if (unlikely(mss && !nr_frags && size == len && size > 8))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2788
			size -= 4;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2789
		/* work-around for errata 10 and it applies
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2790
		 * to all controllers in PCI-X mode
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2791
		 * The fix is to make sure that the first descriptor of a
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2792
		 * packet is smaller than 2048 - 16 - 16 (or 2016) bytes
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2793
		 */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2794
		if (unlikely((hw->bus_type == e1000_bus_type_pcix) &&
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2795
		                (size > 2015) && count == 0))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2796
		        size = 2015;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2797
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2798
		/* Workaround for potential 82544 hang in PCI-X.  Avoid
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2799
		 * terminating buffers within evenly-aligned dwords. */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2800
		if (unlikely(adapter->pcix_82544 &&
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2801
		   !((unsigned long)(skb->data + offset + size - 1) & 4) &&
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2802
		   size > 4))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2803
			size -= 4;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2804
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2805
		buffer_info->length = size;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2806
		/* set time_stamp *before* dma to help avoid a possible race */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2807
		buffer_info->time_stamp = jiffies;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2808
		buffer_info->mapped_as_page = false;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2809
		buffer_info->dma = dma_map_single(&pdev->dev,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2810
						  skb->data + offset,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2811
						  size,	DMA_TO_DEVICE);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2812
		if (dma_mapping_error(&pdev->dev, buffer_info->dma))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2813
			goto dma_error;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2814
		buffer_info->next_to_watch = i;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2815
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2816
		len -= size;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2817
		offset += size;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2818
		count++;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2819
		if (len) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2820
			i++;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2821
			if (unlikely(i == tx_ring->count))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2822
				i = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2823
		}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2824
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2825
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2826
	for (f = 0; f < nr_frags; f++) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2827
		struct skb_frag_struct *frag;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2828
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2829
		frag = &skb_shinfo(skb)->frags[f];
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2830
		len = frag->size;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2831
		offset = frag->page_offset;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2832
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2833
		while (len) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2834
			i++;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2835
			if (unlikely(i == tx_ring->count))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2836
				i = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2837
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2838
			buffer_info = &tx_ring->buffer_info[i];
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2839
			size = min(len, max_per_txd);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2840
			/* Workaround for premature desc write-backs
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2841
			 * in TSO mode.  Append 4-byte sentinel desc */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2842
			if (unlikely(mss && f == (nr_frags-1) && size == len && size > 8))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2843
				size -= 4;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2844
			/* Workaround for potential 82544 hang in PCI-X.
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2845
			 * Avoid terminating buffers within evenly-aligned
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2846
			 * dwords. */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2847
			if (unlikely(adapter->pcix_82544 &&
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2848
			    !((unsigned long)(page_to_phys(frag->page) + offset
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2849
			                      + size - 1) & 4) &&
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2850
			    size > 4))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2851
				size -= 4;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2852
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2853
			buffer_info->length = size;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2854
			buffer_info->time_stamp = jiffies;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2855
			buffer_info->mapped_as_page = true;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2856
			buffer_info->dma = dma_map_page(&pdev->dev, frag->page,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2857
							offset,	size,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2858
							DMA_TO_DEVICE);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2859
			if (dma_mapping_error(&pdev->dev, buffer_info->dma))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2860
				goto dma_error;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2861
			buffer_info->next_to_watch = i;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2862
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2863
			len -= size;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2864
			offset += size;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2865
			count++;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2866
		}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2867
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2868
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2869
	tx_ring->buffer_info[i].skb = skb;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2870
	tx_ring->buffer_info[first].next_to_watch = i;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2871
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2872
	return count;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2873
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2874
dma_error:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2875
	dev_err(&pdev->dev, "TX DMA map failed\n");
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2876
	buffer_info->dma = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2877
	if (count)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2878
		count--;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2879
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2880
	while (count--) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2881
		if (i==0)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2882
			i += tx_ring->count;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2883
		i--;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2884
		buffer_info = &tx_ring->buffer_info[i];
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2885
		e1000_unmap_and_free_tx_resource(adapter, buffer_info);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2886
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2887
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2888
	return 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2889
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2890
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2891
static void e1000_tx_queue(struct e1000_adapter *adapter,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2892
			   struct e1000_tx_ring *tx_ring, int tx_flags,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2893
			   int count)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2894
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2895
	struct e1000_hw *hw = &adapter->hw;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2896
	struct e1000_tx_desc *tx_desc = NULL;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2897
	struct e1000_buffer *buffer_info;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2898
	u32 txd_upper = 0, txd_lower = E1000_TXD_CMD_IFCS;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2899
	unsigned int i;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2900
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2901
	if (likely(tx_flags & E1000_TX_FLAGS_TSO)) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2902
		txd_lower |= E1000_TXD_CMD_DEXT | E1000_TXD_DTYP_D |
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2903
		             E1000_TXD_CMD_TSE;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2904
		txd_upper |= E1000_TXD_POPTS_TXSM << 8;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2905
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2906
		if (likely(tx_flags & E1000_TX_FLAGS_IPV4))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2907
			txd_upper |= E1000_TXD_POPTS_IXSM << 8;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2908
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2909
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2910
	if (likely(tx_flags & E1000_TX_FLAGS_CSUM)) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2911
		txd_lower |= E1000_TXD_CMD_DEXT | E1000_TXD_DTYP_D;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2912
		txd_upper |= E1000_TXD_POPTS_TXSM << 8;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2913
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2914
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2915
	if (unlikely(tx_flags & E1000_TX_FLAGS_VLAN)) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2916
		txd_lower |= E1000_TXD_CMD_VLE;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2917
		txd_upper |= (tx_flags & E1000_TX_FLAGS_VLAN_MASK);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2918
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2919
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2920
	i = tx_ring->next_to_use;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2921
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2922
	while (count--) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2923
		buffer_info = &tx_ring->buffer_info[i];
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2924
		tx_desc = E1000_TX_DESC(*tx_ring, i);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2925
		tx_desc->buffer_addr = cpu_to_le64(buffer_info->dma);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2926
		tx_desc->lower.data =
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2927
			cpu_to_le32(txd_lower | buffer_info->length);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2928
		tx_desc->upper.data = cpu_to_le32(txd_upper);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2929
		if (unlikely(++i == tx_ring->count)) i = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2930
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2931
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2932
	tx_desc->lower.data |= cpu_to_le32(adapter->txd_cmd);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2933
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2934
	/* Force memory writes to complete before letting h/w
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2935
	 * know there are new descriptors to fetch.  (Only
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2936
	 * applicable for weak-ordered memory model archs,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2937
	 * such as IA-64). */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2938
	wmb();
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2939
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2940
	tx_ring->next_to_use = i;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2941
	writel(i, hw->hw_addr + tx_ring->tdt);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2942
	/* we need this if more than one processor can write to our tail
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2943
	 * at a time, it syncronizes IO on IA64/Altix systems */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2944
	mmiowb();
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2945
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2946
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2947
/**
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2948
 * 82547 workaround to avoid controller hang in half-duplex environment.
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2949
 * The workaround is to avoid queuing a large packet that would span
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2950
 * the internal Tx FIFO ring boundary by notifying the stack to resend
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2951
 * the packet at a later time.  This gives the Tx FIFO an opportunity to
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2952
 * flush all packets.  When that occurs, we reset the Tx FIFO pointers
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2953
 * to the beginning of the Tx FIFO.
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2954
 **/
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2955
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2956
#define E1000_FIFO_HDR			0x10
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2957
#define E1000_82547_PAD_LEN		0x3E0
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2958
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2959
static int e1000_82547_fifo_workaround(struct e1000_adapter *adapter,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2960
				       struct sk_buff *skb)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2961
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2962
	u32 fifo_space = adapter->tx_fifo_size - adapter->tx_fifo_head;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2963
	u32 skb_fifo_len = skb->len + E1000_FIFO_HDR;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2964
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2965
	skb_fifo_len = ALIGN(skb_fifo_len, E1000_FIFO_HDR);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2966
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2967
	if (adapter->link_duplex != HALF_DUPLEX)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2968
		goto no_fifo_stall_required;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2969
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2970
	if (atomic_read(&adapter->tx_fifo_stall))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2971
		return 1;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2972
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2973
	if (skb_fifo_len >= (E1000_82547_PAD_LEN + fifo_space)) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2974
		atomic_set(&adapter->tx_fifo_stall, 1);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2975
		return 1;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2976
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2977
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2978
no_fifo_stall_required:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2979
	adapter->tx_fifo_head += skb_fifo_len;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2980
	if (adapter->tx_fifo_head >= adapter->tx_fifo_size)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2981
		adapter->tx_fifo_head -= adapter->tx_fifo_size;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2982
	return 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2983
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2984
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2985
static int __e1000_maybe_stop_tx(struct net_device *netdev, int size)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2986
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2987
	struct e1000_adapter *adapter = netdev_priv(netdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2988
	struct e1000_tx_ring *tx_ring = adapter->tx_ring;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2989
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2990
	netif_stop_queue(netdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2991
	/* Herbert's original patch had:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2992
	 *  smp_mb__after_netif_stop_queue();
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2993
	 * but since that doesn't exist yet, just open code it. */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2994
	smp_mb();
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2995
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2996
	/* We need to check again in a case another CPU has just
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2997
	 * made room available. */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2998
	if (likely(E1000_DESC_UNUSED(tx_ring) < size))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2999
		return -EBUSY;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3000
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3001
	/* A reprieve! */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3002
	netif_start_queue(netdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3003
	++adapter->restart_queue;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3004
	return 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3005
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3006
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3007
static int e1000_maybe_stop_tx(struct net_device *netdev,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3008
                               struct e1000_tx_ring *tx_ring, int size)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3009
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3010
	if (likely(E1000_DESC_UNUSED(tx_ring) >= size))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3011
		return 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3012
	return __e1000_maybe_stop_tx(netdev, size);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3013
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3014
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3015
#define TXD_USE_COUNT(S, X) (((S) >> (X)) + 1 )
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3016
static netdev_tx_t e1000_xmit_frame(struct sk_buff *skb,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3017
				    struct net_device *netdev)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3018
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3019
	struct e1000_adapter *adapter = netdev_priv(netdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3020
	struct e1000_hw *hw = &adapter->hw;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3021
	struct e1000_tx_ring *tx_ring;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3022
	unsigned int first, max_per_txd = E1000_MAX_DATA_PER_TXD;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3023
	unsigned int max_txd_pwr = E1000_MAX_TXD_PWR;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3024
	unsigned int tx_flags = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3025
	unsigned int len = skb_headlen(skb);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3026
	unsigned int nr_frags;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3027
	unsigned int mss;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3028
	int count = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3029
	int tso;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3030
	unsigned int f;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3031
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3032
	/* This goes back to the question of how to logically map a tx queue
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3033
	 * to a flow.  Right now, performance is impacted slightly negatively
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3034
	 * if using multiple tx queues.  If the stack breaks away from a
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3035
	 * single qdisc implementation, we can look at this again. */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3036
	tx_ring = adapter->tx_ring;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3037
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3038
	if (unlikely(skb->len <= 0)) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3039
		dev_kfree_skb_any(skb);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3040
		return NETDEV_TX_OK;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3041
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3042
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3043
	mss = skb_shinfo(skb)->gso_size;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3044
	/* The controller does a simple calculation to
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3045
	 * make sure there is enough room in the FIFO before
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3046
	 * initiating the DMA for each buffer.  The calc is:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3047
	 * 4 = ceil(buffer len/mss).  To make sure we don't
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3048
	 * overrun the FIFO, adjust the max buffer len if mss
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3049
	 * drops. */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3050
	if (mss) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3051
		u8 hdr_len;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3052
		max_per_txd = min(mss << 2, max_per_txd);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3053
		max_txd_pwr = fls(max_per_txd) - 1;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3054
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3055
		hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3056
		if (skb->data_len && hdr_len == len) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3057
			switch (hw->mac_type) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3058
				unsigned int pull_size;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3059
			case e1000_82544:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3060
				/* Make sure we have room to chop off 4 bytes,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3061
				 * and that the end alignment will work out to
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3062
				 * this hardware's requirements
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3063
				 * NOTE: this is a TSO only workaround
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3064
				 * if end byte alignment not correct move us
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3065
				 * into the next dword */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3066
				if ((unsigned long)(skb_tail_pointer(skb) - 1) & 4)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3067
					break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3068
				/* fall through */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3069
				pull_size = min((unsigned int)4, skb->data_len);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3070
				if (!__pskb_pull_tail(skb, pull_size)) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3071
					e_err(drv, "__pskb_pull_tail "
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3072
					      "failed.\n");
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3073
					dev_kfree_skb_any(skb);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3074
					return NETDEV_TX_OK;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3075
				}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3076
				len = skb_headlen(skb);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3077
				break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3078
			default:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3079
				/* do nothing */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3080
				break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3081
			}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3082
		}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3083
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3084
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3085
	/* reserve a descriptor for the offload context */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3086
	if ((mss) || (skb->ip_summed == CHECKSUM_PARTIAL))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3087
		count++;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3088
	count++;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3089
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3090
	/* Controller Erratum workaround */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3091
	if (!skb->data_len && tx_ring->last_tx_tso && !skb_is_gso(skb))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3092
		count++;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3093
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3094
	count += TXD_USE_COUNT(len, max_txd_pwr);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3095
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3096
	if (adapter->pcix_82544)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3097
		count++;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3098
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3099
	/* work-around for errata 10 and it applies to all controllers
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3100
	 * in PCI-X mode, so add one more descriptor to the count
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3101
	 */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3102
	if (unlikely((hw->bus_type == e1000_bus_type_pcix) &&
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3103
			(len > 2015)))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3104
		count++;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3105
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3106
	nr_frags = skb_shinfo(skb)->nr_frags;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3107
	for (f = 0; f < nr_frags; f++)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3108
		count += TXD_USE_COUNT(skb_shinfo(skb)->frags[f].size,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3109
				       max_txd_pwr);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3110
	if (adapter->pcix_82544)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3111
		count += nr_frags;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3112
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3113
	/* need: count + 2 desc gap to keep tail from touching
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3114
	 * head, otherwise try next time */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3115
	if (unlikely(e1000_maybe_stop_tx(netdev, tx_ring, count + 2)))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3116
		return NETDEV_TX_BUSY;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3117
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3118
	if (unlikely(hw->mac_type == e1000_82547)) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3119
		if (unlikely(e1000_82547_fifo_workaround(adapter, skb))) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3120
			netif_stop_queue(netdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3121
			if (!test_bit(__E1000_DOWN, &adapter->flags))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3122
				mod_timer(&adapter->tx_fifo_stall_timer,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3123
				          jiffies + 1);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3124
			return NETDEV_TX_BUSY;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3125
		}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3126
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3127
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3128
	if (unlikely(vlan_tx_tag_present(skb))) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3129
		tx_flags |= E1000_TX_FLAGS_VLAN;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3130
		tx_flags |= (vlan_tx_tag_get(skb) << E1000_TX_FLAGS_VLAN_SHIFT);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3131
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3132
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3133
	first = tx_ring->next_to_use;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3134
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3135
	tso = e1000_tso(adapter, tx_ring, skb);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3136
	if (tso < 0) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3137
		dev_kfree_skb_any(skb);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3138
		return NETDEV_TX_OK;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3139
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3140
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3141
	if (likely(tso)) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3142
		if (likely(hw->mac_type != e1000_82544))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3143
			tx_ring->last_tx_tso = 1;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3144
		tx_flags |= E1000_TX_FLAGS_TSO;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3145
	} else if (likely(e1000_tx_csum(adapter, tx_ring, skb)))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3146
		tx_flags |= E1000_TX_FLAGS_CSUM;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3147
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3148
	if (likely(skb->protocol == htons(ETH_P_IP)))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3149
		tx_flags |= E1000_TX_FLAGS_IPV4;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3150
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3151
	count = e1000_tx_map(adapter, tx_ring, skb, first, max_per_txd,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3152
	                     nr_frags, mss);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3153
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3154
	if (count) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3155
		e1000_tx_queue(adapter, tx_ring, tx_flags, count);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3156
		/* Make sure there is space in the ring for the next send. */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3157
		e1000_maybe_stop_tx(netdev, tx_ring, MAX_SKB_FRAGS + 2);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3158
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3159
	} else {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3160
		dev_kfree_skb_any(skb);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3161
		tx_ring->buffer_info[first].time_stamp = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3162
		tx_ring->next_to_use = first;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3163
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3164
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3165
	return NETDEV_TX_OK;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3166
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3167
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3168
/**
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3169
 * e1000_tx_timeout - Respond to a Tx Hang
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3170
 * @netdev: network interface device structure
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3171
 **/
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3172
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3173
static void e1000_tx_timeout(struct net_device *netdev)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3174
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3175
	struct e1000_adapter *adapter = netdev_priv(netdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3176
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3177
	/* Do the reset outside of interrupt context */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3178
	adapter->tx_timeout_count++;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3179
	schedule_work(&adapter->reset_task);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3180
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3181
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3182
static void e1000_reset_task(struct work_struct *work)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3183
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3184
	struct e1000_adapter *adapter =
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3185
		container_of(work, struct e1000_adapter, reset_task);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3186
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3187
	e1000_reinit_safe(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3188
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3189
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3190
/**
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3191
 * e1000_get_stats - Get System Network Statistics
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3192
 * @netdev: network interface device structure
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3193
 *
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3194
 * Returns the address of the device statistics structure.
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3195
 * The statistics are actually updated from the timer callback.
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3196
 **/
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3197
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3198
static struct net_device_stats *e1000_get_stats(struct net_device *netdev)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3199
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3200
	/* only return the current stats */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3201
	return &netdev->stats;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3202
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3203
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3204
/**
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3205
 * e1000_change_mtu - Change the Maximum Transfer Unit
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3206
 * @netdev: network interface device structure
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3207
 * @new_mtu: new value for maximum frame size
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3208
 *
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3209
 * Returns 0 on success, negative on failure
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3210
 **/
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3211
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3212
static int e1000_change_mtu(struct net_device *netdev, int new_mtu)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3213
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3214
	struct e1000_adapter *adapter = netdev_priv(netdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3215
	struct e1000_hw *hw = &adapter->hw;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3216
	int max_frame = new_mtu + ENET_HEADER_SIZE + ETHERNET_FCS_SIZE;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3217
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3218
	if ((max_frame < MINIMUM_ETHERNET_FRAME_SIZE) ||
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3219
	    (max_frame > MAX_JUMBO_FRAME_SIZE)) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3220
		e_err(probe, "Invalid MTU setting\n");
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3221
		return -EINVAL;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3222
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3223
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3224
	/* Adapter-specific max frame size limits. */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3225
	switch (hw->mac_type) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3226
	case e1000_undefined ... e1000_82542_rev2_1:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3227
		if (max_frame > (ETH_FRAME_LEN + ETH_FCS_LEN)) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3228
			e_err(probe, "Jumbo Frames not supported.\n");
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3229
			return -EINVAL;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3230
		}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3231
		break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3232
	default:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3233
		/* Capable of supporting up to MAX_JUMBO_FRAME_SIZE limit. */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3234
		break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3235
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3236
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3237
	while (test_and_set_bit(__E1000_RESETTING, &adapter->flags))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3238
		msleep(1);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3239
	/* e1000_down has a dependency on max_frame_size */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3240
	hw->max_frame_size = max_frame;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3241
	if (netif_running(netdev))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3242
		e1000_down(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3243
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3244
	/* NOTE: netdev_alloc_skb reserves 16 bytes, and typically NET_IP_ALIGN
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3245
	 * means we reserve 2 more, this pushes us to allocate from the next
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3246
	 * larger slab size.
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3247
	 * i.e. RXBUFFER_2048 --> size-4096 slab
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3248
	 *  however with the new *_jumbo_rx* routines, jumbo receives will use
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3249
	 *  fragmented skbs */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3250
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3251
	if (max_frame <= E1000_RXBUFFER_2048)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3252
		adapter->rx_buffer_len = E1000_RXBUFFER_2048;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3253
	else
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3254
#if (PAGE_SIZE >= E1000_RXBUFFER_16384)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3255
		adapter->rx_buffer_len = E1000_RXBUFFER_16384;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3256
#elif (PAGE_SIZE >= E1000_RXBUFFER_4096)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3257
		adapter->rx_buffer_len = PAGE_SIZE;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3258
#endif
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3259
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3260
	/* adjust allocation if LPE protects us, and we aren't using SBP */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3261
	if (!hw->tbi_compatibility_on &&
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3262
	    ((max_frame == (ETH_FRAME_LEN + ETH_FCS_LEN)) ||
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3263
	     (max_frame == MAXIMUM_ETHERNET_VLAN_SIZE)))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3264
		adapter->rx_buffer_len = MAXIMUM_ETHERNET_VLAN_SIZE;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3265
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3266
	pr_info("%s changing MTU from %d to %d\n",
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3267
		netdev->name, netdev->mtu, new_mtu);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3268
	netdev->mtu = new_mtu;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3269
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3270
	if (netif_running(netdev))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3271
		e1000_up(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3272
	else
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3273
		e1000_reset(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3274
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3275
	clear_bit(__E1000_RESETTING, &adapter->flags);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3276
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3277
	return 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3278
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3279
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3280
/**
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3281
 * e1000_update_stats - Update the board statistics counters
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3282
 * @adapter: board private structure
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3283
 **/
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3284
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3285
void e1000_update_stats(struct e1000_adapter *adapter)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3286
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3287
	struct net_device *netdev = adapter->netdev;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3288
	struct e1000_hw *hw = &adapter->hw;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3289
	struct pci_dev *pdev = adapter->pdev;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3290
	unsigned long flags;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3291
	u16 phy_tmp;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3292
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3293
#define PHY_IDLE_ERROR_COUNT_MASK 0x00FF
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3294
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3295
	/*
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3296
	 * Prevent stats update while adapter is being reset, or if the pci
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3297
	 * connection is down.
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3298
	 */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3299
	if (adapter->link_speed == 0)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3300
		return;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3301
	if (pci_channel_offline(pdev))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3302
		return;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3303
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3304
	spin_lock_irqsave(&adapter->stats_lock, flags);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3305
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3306
	/* these counters are modified from e1000_tbi_adjust_stats,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3307
	 * called from the interrupt context, so they must only
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3308
	 * be written while holding adapter->stats_lock
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3309
	 */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3310
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3311
	adapter->stats.crcerrs += er32(CRCERRS);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3312
	adapter->stats.gprc += er32(GPRC);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3313
	adapter->stats.gorcl += er32(GORCL);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3314
	adapter->stats.gorch += er32(GORCH);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3315
	adapter->stats.bprc += er32(BPRC);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3316
	adapter->stats.mprc += er32(MPRC);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3317
	adapter->stats.roc += er32(ROC);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3318
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3319
	adapter->stats.prc64 += er32(PRC64);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3320
	adapter->stats.prc127 += er32(PRC127);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3321
	adapter->stats.prc255 += er32(PRC255);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3322
	adapter->stats.prc511 += er32(PRC511);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3323
	adapter->stats.prc1023 += er32(PRC1023);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3324
	adapter->stats.prc1522 += er32(PRC1522);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3325
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3326
	adapter->stats.symerrs += er32(SYMERRS);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3327
	adapter->stats.mpc += er32(MPC);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3328
	adapter->stats.scc += er32(SCC);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3329
	adapter->stats.ecol += er32(ECOL);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3330
	adapter->stats.mcc += er32(MCC);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3331
	adapter->stats.latecol += er32(LATECOL);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3332
	adapter->stats.dc += er32(DC);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3333
	adapter->stats.sec += er32(SEC);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3334
	adapter->stats.rlec += er32(RLEC);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3335
	adapter->stats.xonrxc += er32(XONRXC);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3336
	adapter->stats.xontxc += er32(XONTXC);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3337
	adapter->stats.xoffrxc += er32(XOFFRXC);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3338
	adapter->stats.xofftxc += er32(XOFFTXC);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3339
	adapter->stats.fcruc += er32(FCRUC);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3340
	adapter->stats.gptc += er32(GPTC);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3341
	adapter->stats.gotcl += er32(GOTCL);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3342
	adapter->stats.gotch += er32(GOTCH);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3343
	adapter->stats.rnbc += er32(RNBC);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3344
	adapter->stats.ruc += er32(RUC);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3345
	adapter->stats.rfc += er32(RFC);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3346
	adapter->stats.rjc += er32(RJC);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3347
	adapter->stats.torl += er32(TORL);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3348
	adapter->stats.torh += er32(TORH);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3349
	adapter->stats.totl += er32(TOTL);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3350
	adapter->stats.toth += er32(TOTH);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3351
	adapter->stats.tpr += er32(TPR);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3352
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3353
	adapter->stats.ptc64 += er32(PTC64);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3354
	adapter->stats.ptc127 += er32(PTC127);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3355
	adapter->stats.ptc255 += er32(PTC255);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3356
	adapter->stats.ptc511 += er32(PTC511);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3357
	adapter->stats.ptc1023 += er32(PTC1023);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3358
	adapter->stats.ptc1522 += er32(PTC1522);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3359
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3360
	adapter->stats.mptc += er32(MPTC);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3361
	adapter->stats.bptc += er32(BPTC);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3362
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3363
	/* used for adaptive IFS */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3364
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3365
	hw->tx_packet_delta = er32(TPT);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3366
	adapter->stats.tpt += hw->tx_packet_delta;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3367
	hw->collision_delta = er32(COLC);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3368
	adapter->stats.colc += hw->collision_delta;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3369
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3370
	if (hw->mac_type >= e1000_82543) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3371
		adapter->stats.algnerrc += er32(ALGNERRC);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3372
		adapter->stats.rxerrc += er32(RXERRC);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3373
		adapter->stats.tncrs += er32(TNCRS);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3374
		adapter->stats.cexterr += er32(CEXTERR);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3375
		adapter->stats.tsctc += er32(TSCTC);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3376
		adapter->stats.tsctfc += er32(TSCTFC);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3377
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3378
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3379
	/* Fill out the OS statistics structure */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3380
	netdev->stats.multicast = adapter->stats.mprc;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3381
	netdev->stats.collisions = adapter->stats.colc;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3382
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3383
	/* Rx Errors */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3384
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3385
	/* RLEC on some newer hardware can be incorrect so build
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3386
	* our own version based on RUC and ROC */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3387
	netdev->stats.rx_errors = adapter->stats.rxerrc +
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3388
		adapter->stats.crcerrs + adapter->stats.algnerrc +
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3389
		adapter->stats.ruc + adapter->stats.roc +
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3390
		adapter->stats.cexterr;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3391
	adapter->stats.rlerrc = adapter->stats.ruc + adapter->stats.roc;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3392
	netdev->stats.rx_length_errors = adapter->stats.rlerrc;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3393
	netdev->stats.rx_crc_errors = adapter->stats.crcerrs;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3394
	netdev->stats.rx_frame_errors = adapter->stats.algnerrc;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3395
	netdev->stats.rx_missed_errors = adapter->stats.mpc;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3396
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3397
	/* Tx Errors */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3398
	adapter->stats.txerrc = adapter->stats.ecol + adapter->stats.latecol;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3399
	netdev->stats.tx_errors = adapter->stats.txerrc;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3400
	netdev->stats.tx_aborted_errors = adapter->stats.ecol;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3401
	netdev->stats.tx_window_errors = adapter->stats.latecol;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3402
	netdev->stats.tx_carrier_errors = adapter->stats.tncrs;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3403
	if (hw->bad_tx_carr_stats_fd &&
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3404
	    adapter->link_duplex == FULL_DUPLEX) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3405
		netdev->stats.tx_carrier_errors = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3406
		adapter->stats.tncrs = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3407
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3408
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3409
	/* Tx Dropped needs to be maintained elsewhere */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3410
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3411
	/* Phy Stats */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3412
	if (hw->media_type == e1000_media_type_copper) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3413
		if ((adapter->link_speed == SPEED_1000) &&
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3414
		   (!e1000_read_phy_reg(hw, PHY_1000T_STATUS, &phy_tmp))) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3415
			phy_tmp &= PHY_IDLE_ERROR_COUNT_MASK;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3416
			adapter->phy_stats.idle_errors += phy_tmp;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3417
		}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3418
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3419
		if ((hw->mac_type <= e1000_82546) &&
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3420
		   (hw->phy_type == e1000_phy_m88) &&
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3421
		   !e1000_read_phy_reg(hw, M88E1000_RX_ERR_CNTR, &phy_tmp))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3422
			adapter->phy_stats.receive_errors += phy_tmp;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3423
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3424
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3425
	/* Management Stats */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3426
	if (hw->has_smbus) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3427
		adapter->stats.mgptc += er32(MGTPTC);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3428
		adapter->stats.mgprc += er32(MGTPRC);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3429
		adapter->stats.mgpdc += er32(MGTPDC);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3430
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3431
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3432
	spin_unlock_irqrestore(&adapter->stats_lock, flags);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3433
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3434
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3435
/**
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3436
 * e1000_intr - Interrupt Handler
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3437
 * @irq: interrupt number
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3438
 * @data: pointer to a network interface device structure
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3439
 **/
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3440
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3441
static irqreturn_t e1000_intr(int irq, void *data)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3442
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3443
	struct net_device *netdev = data;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3444
	struct e1000_adapter *adapter = netdev_priv(netdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3445
	struct e1000_hw *hw = &adapter->hw;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3446
	u32 icr = er32(ICR);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3447
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3448
	if (unlikely((!icr) || test_bit(__E1000_DOWN, &adapter->flags)))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3449
		return IRQ_NONE;  /* Not our interrupt */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3450
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3451
	if (unlikely(icr & (E1000_ICR_RXSEQ | E1000_ICR_LSC))) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3452
		hw->get_link_status = 1;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3453
		/* guard against interrupt when we're going down */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3454
		if (!test_bit(__E1000_DOWN, &adapter->flags))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3455
			mod_timer(&adapter->watchdog_timer, jiffies + 1);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3456
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3457
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3458
	/* disable interrupts, without the synchronize_irq bit */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3459
	ew32(IMC, ~0);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3460
	E1000_WRITE_FLUSH();
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3461
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3462
	if (likely(napi_schedule_prep(&adapter->napi))) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3463
		adapter->total_tx_bytes = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3464
		adapter->total_tx_packets = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3465
		adapter->total_rx_bytes = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3466
		adapter->total_rx_packets = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3467
		__napi_schedule(&adapter->napi);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3468
	} else {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3469
		/* this really should not happen! if it does it is basically a
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3470
		 * bug, but not a hard error, so enable ints and continue */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3471
		if (!test_bit(__E1000_DOWN, &adapter->flags))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3472
			e1000_irq_enable(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3473
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3474
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3475
	return IRQ_HANDLED;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3476
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3477
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3478
/**
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3479
 * e1000_clean - NAPI Rx polling callback
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3480
 * @adapter: board private structure
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3481
 **/
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3482
static int e1000_clean(struct napi_struct *napi, int budget)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3483
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3484
	struct e1000_adapter *adapter = container_of(napi, struct e1000_adapter, napi);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3485
	int tx_clean_complete = 0, work_done = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3486
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3487
	tx_clean_complete = e1000_clean_tx_irq(adapter, &adapter->tx_ring[0]);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3488
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3489
	adapter->clean_rx(adapter, &adapter->rx_ring[0], &work_done, budget);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3490
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3491
	if (!tx_clean_complete)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3492
		work_done = budget;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3493
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3494
	/* If budget not fully consumed, exit the polling mode */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3495
	if (work_done < budget) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3496
		if (likely(adapter->itr_setting & 3))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3497
			e1000_set_itr(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3498
		napi_complete(napi);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3499
		if (!test_bit(__E1000_DOWN, &adapter->flags))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3500
			e1000_irq_enable(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3501
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3502
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3503
	return work_done;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3504
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3505
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3506
/**
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3507
 * e1000_clean_tx_irq - Reclaim resources after transmit completes
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3508
 * @adapter: board private structure
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3509
 **/
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3510
static bool e1000_clean_tx_irq(struct e1000_adapter *adapter,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3511
			       struct e1000_tx_ring *tx_ring)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3512
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3513
	struct e1000_hw *hw = &adapter->hw;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3514
	struct net_device *netdev = adapter->netdev;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3515
	struct e1000_tx_desc *tx_desc, *eop_desc;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3516
	struct e1000_buffer *buffer_info;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3517
	unsigned int i, eop;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3518
	unsigned int count = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3519
	unsigned int total_tx_bytes=0, total_tx_packets=0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3520
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3521
	i = tx_ring->next_to_clean;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3522
	eop = tx_ring->buffer_info[i].next_to_watch;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3523
	eop_desc = E1000_TX_DESC(*tx_ring, eop);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3524
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3525
	while ((eop_desc->upper.data & cpu_to_le32(E1000_TXD_STAT_DD)) &&
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3526
	       (count < tx_ring->count)) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3527
		bool cleaned = false;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3528
		rmb();	/* read buffer_info after eop_desc */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3529
		for ( ; !cleaned; count++) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3530
			tx_desc = E1000_TX_DESC(*tx_ring, i);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3531
			buffer_info = &tx_ring->buffer_info[i];
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3532
			cleaned = (i == eop);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3533
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3534
			if (cleaned) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3535
				struct sk_buff *skb = buffer_info->skb;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3536
				unsigned int segs, bytecount;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3537
				segs = skb_shinfo(skb)->gso_segs ?: 1;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3538
				/* multiply data chunks by size of headers */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3539
				bytecount = ((segs - 1) * skb_headlen(skb)) +
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3540
				            skb->len;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3541
				total_tx_packets += segs;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3542
				total_tx_bytes += bytecount;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3543
			}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3544
			e1000_unmap_and_free_tx_resource(adapter, buffer_info);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3545
			tx_desc->upper.data = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3546
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3547
			if (unlikely(++i == tx_ring->count)) i = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3548
		}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3549
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3550
		eop = tx_ring->buffer_info[i].next_to_watch;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3551
		eop_desc = E1000_TX_DESC(*tx_ring, eop);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3552
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3553
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3554
	tx_ring->next_to_clean = i;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3555
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3556
#define TX_WAKE_THRESHOLD 32
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3557
	if (unlikely(count && netif_carrier_ok(netdev) &&
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3558
		     E1000_DESC_UNUSED(tx_ring) >= TX_WAKE_THRESHOLD)) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3559
		/* Make sure that anybody stopping the queue after this
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3560
		 * sees the new next_to_clean.
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3561
		 */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3562
		smp_mb();
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3563
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3564
		if (netif_queue_stopped(netdev) &&
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3565
		    !(test_bit(__E1000_DOWN, &adapter->flags))) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3566
			netif_wake_queue(netdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3567
			++adapter->restart_queue;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3568
		}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3569
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3570
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3571
	if (adapter->detect_tx_hung) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3572
		/* Detect a transmit hang in hardware, this serializes the
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3573
		 * check with the clearing of time_stamp and movement of i */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3574
		adapter->detect_tx_hung = false;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3575
		if (tx_ring->buffer_info[eop].time_stamp &&
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3576
		    time_after(jiffies, tx_ring->buffer_info[eop].time_stamp +
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3577
		               (adapter->tx_timeout_factor * HZ)) &&
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3578
		    !(er32(STATUS) & E1000_STATUS_TXOFF)) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3579
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3580
			/* detected Tx unit hang */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3581
			e_err(drv, "Detected Tx Unit Hang\n"
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3582
			      "  Tx Queue             <%lu>\n"
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3583
			      "  TDH                  <%x>\n"
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3584
			      "  TDT                  <%x>\n"
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3585
			      "  next_to_use          <%x>\n"
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3586
			      "  next_to_clean        <%x>\n"
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3587
			      "buffer_info[next_to_clean]\n"
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3588
			      "  time_stamp           <%lx>\n"
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3589
			      "  next_to_watch        <%x>\n"
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3590
			      "  jiffies              <%lx>\n"
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3591
			      "  next_to_watch.status <%x>\n",
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3592
				(unsigned long)((tx_ring - adapter->tx_ring) /
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3593
					sizeof(struct e1000_tx_ring)),
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3594
				readl(hw->hw_addr + tx_ring->tdh),
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3595
				readl(hw->hw_addr + tx_ring->tdt),
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3596
				tx_ring->next_to_use,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3597
				tx_ring->next_to_clean,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3598
				tx_ring->buffer_info[eop].time_stamp,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3599
				eop,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3600
				jiffies,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3601
				eop_desc->upper.fields.status);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3602
			netif_stop_queue(netdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3603
		}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3604
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3605
	adapter->total_tx_bytes += total_tx_bytes;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3606
	adapter->total_tx_packets += total_tx_packets;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3607
	netdev->stats.tx_bytes += total_tx_bytes;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3608
	netdev->stats.tx_packets += total_tx_packets;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3609
	return count < tx_ring->count;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3610
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3611
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3612
/**
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3613
 * e1000_rx_checksum - Receive Checksum Offload for 82543
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3614
 * @adapter:     board private structure
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3615
 * @status_err:  receive descriptor status and error fields
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3616
 * @csum:        receive descriptor csum field
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3617
 * @sk_buff:     socket buffer with received data
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3618
 **/
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3619
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3620
static void e1000_rx_checksum(struct e1000_adapter *adapter, u32 status_err,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3621
			      u32 csum, struct sk_buff *skb)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3622
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3623
	struct e1000_hw *hw = &adapter->hw;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3624
	u16 status = (u16)status_err;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3625
	u8 errors = (u8)(status_err >> 24);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3626
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3627
	skb_checksum_none_assert(skb);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3628
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3629
	/* 82543 or newer only */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3630
	if (unlikely(hw->mac_type < e1000_82543)) return;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3631
	/* Ignore Checksum bit is set */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3632
	if (unlikely(status & E1000_RXD_STAT_IXSM)) return;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3633
	/* TCP/UDP checksum error bit is set */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3634
	if (unlikely(errors & E1000_RXD_ERR_TCPE)) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3635
		/* let the stack verify checksum errors */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3636
		adapter->hw_csum_err++;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3637
		return;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3638
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3639
	/* TCP/UDP Checksum has not been calculated */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3640
	if (!(status & E1000_RXD_STAT_TCPCS))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3641
		return;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3642
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3643
	/* It must be a TCP or UDP packet with a valid checksum */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3644
	if (likely(status & E1000_RXD_STAT_TCPCS)) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3645
		/* TCP checksum is good */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3646
		skb->ip_summed = CHECKSUM_UNNECESSARY;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3647
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3648
	adapter->hw_csum_good++;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3649
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3650
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3651
/**
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3652
 * e1000_consume_page - helper function
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3653
 **/
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3654
static void e1000_consume_page(struct e1000_buffer *bi, struct sk_buff *skb,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3655
                               u16 length)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3656
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3657
	bi->page = NULL;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3658
	skb->len += length;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3659
	skb->data_len += length;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3660
	skb->truesize += length;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3661
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3662
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3663
/**
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3664
 * e1000_receive_skb - helper function to handle rx indications
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3665
 * @adapter: board private structure
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3666
 * @status: descriptor status field as written by hardware
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3667
 * @vlan: descriptor vlan field as written by hardware (no le/be conversion)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3668
 * @skb: pointer to sk_buff to be indicated to stack
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3669
 */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3670
static void e1000_receive_skb(struct e1000_adapter *adapter, u8 status,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3671
			      __le16 vlan, struct sk_buff *skb)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3672
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3673
	skb->protocol = eth_type_trans(skb, adapter->netdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3674
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3675
	if ((unlikely(adapter->vlgrp && (status & E1000_RXD_STAT_VP))))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3676
		vlan_gro_receive(&adapter->napi, adapter->vlgrp,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3677
				 le16_to_cpu(vlan) & E1000_RXD_SPC_VLAN_MASK,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3678
				 skb);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3679
	else
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3680
		napi_gro_receive(&adapter->napi, skb);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3681
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3682
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3683
/**
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3684
 * e1000_clean_jumbo_rx_irq - Send received data up the network stack; legacy
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3685
 * @adapter: board private structure
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3686
 * @rx_ring: ring to clean
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3687
 * @work_done: amount of napi work completed this call
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3688
 * @work_to_do: max amount of work allowed for this call to do
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3689
 *
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3690
 * the return value indicates whether actual cleaning was done, there
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3691
 * is no guarantee that everything was cleaned
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3692
 */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3693
static bool e1000_clean_jumbo_rx_irq(struct e1000_adapter *adapter,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3694
				     struct e1000_rx_ring *rx_ring,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3695
				     int *work_done, int work_to_do)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3696
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3697
	struct e1000_hw *hw = &adapter->hw;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3698
	struct net_device *netdev = adapter->netdev;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3699
	struct pci_dev *pdev = adapter->pdev;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3700
	struct e1000_rx_desc *rx_desc, *next_rxd;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3701
	struct e1000_buffer *buffer_info, *next_buffer;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3702
	unsigned long irq_flags;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3703
	u32 length;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3704
	unsigned int i;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3705
	int cleaned_count = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3706
	bool cleaned = false;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3707
	unsigned int total_rx_bytes=0, total_rx_packets=0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3708
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3709
	i = rx_ring->next_to_clean;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3710
	rx_desc = E1000_RX_DESC(*rx_ring, i);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3711
	buffer_info = &rx_ring->buffer_info[i];
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3712
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3713
	while (rx_desc->status & E1000_RXD_STAT_DD) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3714
		struct sk_buff *skb;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3715
		u8 status;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3716
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3717
		if (*work_done >= work_to_do)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3718
			break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3719
		(*work_done)++;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3720
		rmb(); /* read descriptor and rx_buffer_info after status DD */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3721
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3722
		status = rx_desc->status;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3723
		skb = buffer_info->skb;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3724
		buffer_info->skb = NULL;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3725
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3726
		if (++i == rx_ring->count) i = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3727
		next_rxd = E1000_RX_DESC(*rx_ring, i);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3728
		prefetch(next_rxd);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3729
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3730
		next_buffer = &rx_ring->buffer_info[i];
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3731
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3732
		cleaned = true;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3733
		cleaned_count++;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3734
		dma_unmap_page(&pdev->dev, buffer_info->dma,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3735
			       buffer_info->length, DMA_FROM_DEVICE);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3736
		buffer_info->dma = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3737
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3738
		length = le16_to_cpu(rx_desc->length);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3739
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3740
		/* errors is only valid for DD + EOP descriptors */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3741
		if (unlikely((status & E1000_RXD_STAT_EOP) &&
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3742
		    (rx_desc->errors & E1000_RXD_ERR_FRAME_ERR_MASK))) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3743
			u8 last_byte = *(skb->data + length - 1);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3744
			if (TBI_ACCEPT(hw, status, rx_desc->errors, length,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3745
				       last_byte)) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3746
				spin_lock_irqsave(&adapter->stats_lock,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3747
				                  irq_flags);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3748
				e1000_tbi_adjust_stats(hw, &adapter->stats,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3749
				                       length, skb->data);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3750
				spin_unlock_irqrestore(&adapter->stats_lock,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3751
				                       irq_flags);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3752
				length--;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3753
			} else {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3754
				/* recycle both page and skb */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3755
				buffer_info->skb = skb;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3756
				/* an error means any chain goes out the window
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3757
				 * too */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3758
				if (rx_ring->rx_skb_top)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3759
					dev_kfree_skb(rx_ring->rx_skb_top);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3760
				rx_ring->rx_skb_top = NULL;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3761
				goto next_desc;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3762
			}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3763
		}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3764
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3765
#define rxtop rx_ring->rx_skb_top
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3766
		if (!(status & E1000_RXD_STAT_EOP)) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3767
			/* this descriptor is only the beginning (or middle) */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3768
			if (!rxtop) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3769
				/* this is the beginning of a chain */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3770
				rxtop = skb;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3771
				skb_fill_page_desc(rxtop, 0, buffer_info->page,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3772
				                   0, length);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3773
			} else {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3774
				/* this is the middle of a chain */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3775
				skb_fill_page_desc(rxtop,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3776
				    skb_shinfo(rxtop)->nr_frags,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3777
				    buffer_info->page, 0, length);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3778
				/* re-use the skb, only consumed the page */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3779
				buffer_info->skb = skb;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3780
			}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3781
			e1000_consume_page(buffer_info, rxtop, length);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3782
			goto next_desc;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3783
		} else {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3784
			if (rxtop) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3785
				/* end of the chain */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3786
				skb_fill_page_desc(rxtop,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3787
				    skb_shinfo(rxtop)->nr_frags,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3788
				    buffer_info->page, 0, length);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3789
				/* re-use the current skb, we only consumed the
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3790
				 * page */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3791
				buffer_info->skb = skb;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3792
				skb = rxtop;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3793
				rxtop = NULL;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3794
				e1000_consume_page(buffer_info, skb, length);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3795
			} else {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3796
				/* no chain, got EOP, this buf is the packet
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3797
				 * copybreak to save the put_page/alloc_page */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3798
				if (length <= copybreak &&
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3799
				    skb_tailroom(skb) >= length) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3800
					u8 *vaddr;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3801
					vaddr = kmap_atomic(buffer_info->page,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3802
					                    KM_SKB_DATA_SOFTIRQ);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3803
					memcpy(skb_tail_pointer(skb), vaddr, length);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3804
					kunmap_atomic(vaddr,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3805
					              KM_SKB_DATA_SOFTIRQ);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3806
					/* re-use the page, so don't erase
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3807
					 * buffer_info->page */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3808
					skb_put(skb, length);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3809
				} else {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3810
					skb_fill_page_desc(skb, 0,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3811
					                   buffer_info->page, 0,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3812
				                           length);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3813
					e1000_consume_page(buffer_info, skb,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3814
					                   length);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3815
				}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3816
			}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3817
		}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3818
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3819
		/* Receive Checksum Offload XXX recompute due to CRC strip? */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3820
		e1000_rx_checksum(adapter,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3821
		                  (u32)(status) |
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3822
		                  ((u32)(rx_desc->errors) << 24),
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3823
		                  le16_to_cpu(rx_desc->csum), skb);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3824
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3825
		pskb_trim(skb, skb->len - 4);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3826
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3827
		/* probably a little skewed due to removing CRC */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3828
		total_rx_bytes += skb->len;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3829
		total_rx_packets++;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3830
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3831
		/* eth type trans needs skb->data to point to something */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3832
		if (!pskb_may_pull(skb, ETH_HLEN)) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3833
			e_err(drv, "pskb_may_pull failed.\n");
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3834
			dev_kfree_skb(skb);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3835
			goto next_desc;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3836
		}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3837
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3838
		e1000_receive_skb(adapter, status, rx_desc->special, skb);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3839
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3840
next_desc:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3841
		rx_desc->status = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3842
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3843
		/* return some buffers to hardware, one at a time is too slow */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3844
		if (unlikely(cleaned_count >= E1000_RX_BUFFER_WRITE)) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3845
			adapter->alloc_rx_buf(adapter, rx_ring, cleaned_count);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3846
			cleaned_count = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3847
		}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3848
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3849
		/* use prefetched values */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3850
		rx_desc = next_rxd;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3851
		buffer_info = next_buffer;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3852
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3853
	rx_ring->next_to_clean = i;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3854
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3855
	cleaned_count = E1000_DESC_UNUSED(rx_ring);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3856
	if (cleaned_count)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3857
		adapter->alloc_rx_buf(adapter, rx_ring, cleaned_count);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3858
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3859
	adapter->total_rx_packets += total_rx_packets;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3860
	adapter->total_rx_bytes += total_rx_bytes;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3861
	netdev->stats.rx_bytes += total_rx_bytes;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3862
	netdev->stats.rx_packets += total_rx_packets;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3863
	return cleaned;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3864
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3865
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3866
/*
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3867
 * this should improve performance for small packets with large amounts
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3868
 * of reassembly being done in the stack
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3869
 */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3870
static void e1000_check_copybreak(struct net_device *netdev,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3871
				 struct e1000_buffer *buffer_info,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3872
				 u32 length, struct sk_buff **skb)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3873
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3874
	struct sk_buff *new_skb;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3875
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3876
	if (length > copybreak)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3877
		return;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3878
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3879
	new_skb = netdev_alloc_skb_ip_align(netdev, length);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3880
	if (!new_skb)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3881
		return;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3882
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3883
	skb_copy_to_linear_data_offset(new_skb, -NET_IP_ALIGN,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3884
				       (*skb)->data - NET_IP_ALIGN,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3885
				       length + NET_IP_ALIGN);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3886
	/* save the skb in buffer_info as good */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3887
	buffer_info->skb = *skb;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3888
	*skb = new_skb;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3889
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3890
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3891
/**
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3892
 * e1000_clean_rx_irq - Send received data up the network stack; legacy
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3893
 * @adapter: board private structure
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3894
 * @rx_ring: ring to clean
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3895
 * @work_done: amount of napi work completed this call
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3896
 * @work_to_do: max amount of work allowed for this call to do
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3897
 */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3898
static bool e1000_clean_rx_irq(struct e1000_adapter *adapter,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3899
			       struct e1000_rx_ring *rx_ring,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3900
			       int *work_done, int work_to_do)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3901
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3902
	struct e1000_hw *hw = &adapter->hw;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3903
	struct net_device *netdev = adapter->netdev;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3904
	struct pci_dev *pdev = adapter->pdev;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3905
	struct e1000_rx_desc *rx_desc, *next_rxd;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3906
	struct e1000_buffer *buffer_info, *next_buffer;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3907
	unsigned long flags;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3908
	u32 length;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3909
	unsigned int i;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3910
	int cleaned_count = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3911
	bool cleaned = false;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3912
	unsigned int total_rx_bytes=0, total_rx_packets=0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3913
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3914
	i = rx_ring->next_to_clean;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3915
	rx_desc = E1000_RX_DESC(*rx_ring, i);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3916
	buffer_info = &rx_ring->buffer_info[i];
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3917
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3918
	while (rx_desc->status & E1000_RXD_STAT_DD) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3919
		struct sk_buff *skb;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3920
		u8 status;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3921
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3922
		if (*work_done >= work_to_do)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3923
			break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3924
		(*work_done)++;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3925
		rmb(); /* read descriptor and rx_buffer_info after status DD */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3926
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3927
		status = rx_desc->status;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3928
		skb = buffer_info->skb;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3929
		buffer_info->skb = NULL;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3930
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3931
		prefetch(skb->data - NET_IP_ALIGN);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3932
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3933
		if (++i == rx_ring->count) i = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3934
		next_rxd = E1000_RX_DESC(*rx_ring, i);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3935
		prefetch(next_rxd);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3936
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3937
		next_buffer = &rx_ring->buffer_info[i];
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3938
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3939
		cleaned = true;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3940
		cleaned_count++;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3941
		dma_unmap_single(&pdev->dev, buffer_info->dma,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3942
				 buffer_info->length, DMA_FROM_DEVICE);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3943
		buffer_info->dma = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3944
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3945
		length = le16_to_cpu(rx_desc->length);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3946
		/* !EOP means multiple descriptors were used to store a single
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3947
		 * packet, if thats the case we need to toss it.  In fact, we
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3948
		 * to toss every packet with the EOP bit clear and the next
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3949
		 * frame that _does_ have the EOP bit set, as it is by
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3950
		 * definition only a frame fragment
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3951
		 */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3952
		if (unlikely(!(status & E1000_RXD_STAT_EOP)))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3953
			adapter->discarding = true;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3954
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3955
		if (adapter->discarding) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3956
			/* All receives must fit into a single buffer */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3957
			e_dbg("Receive packet consumed multiple buffers\n");
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3958
			/* recycle */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3959
			buffer_info->skb = skb;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3960
			if (status & E1000_RXD_STAT_EOP)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3961
				adapter->discarding = false;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3962
			goto next_desc;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3963
		}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3964
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3965
		if (unlikely(rx_desc->errors & E1000_RXD_ERR_FRAME_ERR_MASK)) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3966
			u8 last_byte = *(skb->data + length - 1);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3967
			if (TBI_ACCEPT(hw, status, rx_desc->errors, length,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3968
				       last_byte)) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3969
				spin_lock_irqsave(&adapter->stats_lock, flags);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3970
				e1000_tbi_adjust_stats(hw, &adapter->stats,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3971
				                       length, skb->data);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3972
				spin_unlock_irqrestore(&adapter->stats_lock,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3973
				                       flags);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3974
				length--;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3975
			} else {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3976
				/* recycle */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3977
				buffer_info->skb = skb;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3978
				goto next_desc;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3979
			}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3980
		}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3981
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3982
		/* adjust length to remove Ethernet CRC, this must be
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3983
		 * done after the TBI_ACCEPT workaround above */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3984
		length -= 4;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3985
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3986
		/* probably a little skewed due to removing CRC */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3987
		total_rx_bytes += length;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3988
		total_rx_packets++;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3989
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3990
		e1000_check_copybreak(netdev, buffer_info, length, &skb);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3991
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3992
		skb_put(skb, length);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3993
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3994
		/* Receive Checksum Offload */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3995
		e1000_rx_checksum(adapter,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3996
				  (u32)(status) |
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3997
				  ((u32)(rx_desc->errors) << 24),
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3998
				  le16_to_cpu(rx_desc->csum), skb);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3999
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4000
		e1000_receive_skb(adapter, status, rx_desc->special, skb);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4001
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4002
next_desc:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4003
		rx_desc->status = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4004
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4005
		/* return some buffers to hardware, one at a time is too slow */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4006
		if (unlikely(cleaned_count >= E1000_RX_BUFFER_WRITE)) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4007
			adapter->alloc_rx_buf(adapter, rx_ring, cleaned_count);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4008
			cleaned_count = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4009
		}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4010
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4011
		/* use prefetched values */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4012
		rx_desc = next_rxd;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4013
		buffer_info = next_buffer;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4014
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4015
	rx_ring->next_to_clean = i;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4016
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4017
	cleaned_count = E1000_DESC_UNUSED(rx_ring);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4018
	if (cleaned_count)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4019
		adapter->alloc_rx_buf(adapter, rx_ring, cleaned_count);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4020
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4021
	adapter->total_rx_packets += total_rx_packets;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4022
	adapter->total_rx_bytes += total_rx_bytes;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4023
	netdev->stats.rx_bytes += total_rx_bytes;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4024
	netdev->stats.rx_packets += total_rx_packets;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4025
	return cleaned;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4026
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4027
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4028
/**
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4029
 * e1000_alloc_jumbo_rx_buffers - Replace used jumbo receive buffers
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4030
 * @adapter: address of board private structure
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4031
 * @rx_ring: pointer to receive ring structure
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4032
 * @cleaned_count: number of buffers to allocate this pass
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4033
 **/
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4034
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4035
static void
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4036
e1000_alloc_jumbo_rx_buffers(struct e1000_adapter *adapter,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4037
                             struct e1000_rx_ring *rx_ring, int cleaned_count)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4038
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4039
	struct net_device *netdev = adapter->netdev;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4040
	struct pci_dev *pdev = adapter->pdev;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4041
	struct e1000_rx_desc *rx_desc;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4042
	struct e1000_buffer *buffer_info;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4043
	struct sk_buff *skb;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4044
	unsigned int i;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4045
	unsigned int bufsz = 256 - 16 /*for skb_reserve */ ;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4046
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4047
	i = rx_ring->next_to_use;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4048
	buffer_info = &rx_ring->buffer_info[i];
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4049
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4050
	while (cleaned_count--) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4051
		skb = buffer_info->skb;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4052
		if (skb) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4053
			skb_trim(skb, 0);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4054
			goto check_page;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4055
		}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4056
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4057
		skb = netdev_alloc_skb_ip_align(netdev, bufsz);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4058
		if (unlikely(!skb)) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4059
			/* Better luck next round */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4060
			adapter->alloc_rx_buff_failed++;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4061
			break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4062
		}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4063
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4064
		/* Fix for errata 23, can't cross 64kB boundary */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4065
		if (!e1000_check_64k_bound(adapter, skb->data, bufsz)) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4066
			struct sk_buff *oldskb = skb;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4067
			e_err(rx_err, "skb align check failed: %u bytes at "
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4068
			      "%p\n", bufsz, skb->data);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4069
			/* Try again, without freeing the previous */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4070
			skb = netdev_alloc_skb_ip_align(netdev, bufsz);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4071
			/* Failed allocation, critical failure */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4072
			if (!skb) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4073
				dev_kfree_skb(oldskb);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4074
				adapter->alloc_rx_buff_failed++;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4075
				break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4076
			}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4077
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4078
			if (!e1000_check_64k_bound(adapter, skb->data, bufsz)) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4079
				/* give up */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4080
				dev_kfree_skb(skb);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4081
				dev_kfree_skb(oldskb);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4082
				break; /* while (cleaned_count--) */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4083
			}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4084
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4085
			/* Use new allocation */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4086
			dev_kfree_skb(oldskb);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4087
		}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4088
		buffer_info->skb = skb;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4089
		buffer_info->length = adapter->rx_buffer_len;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4090
check_page:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4091
		/* allocate a new page if necessary */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4092
		if (!buffer_info->page) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4093
			buffer_info->page = alloc_page(GFP_ATOMIC);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4094
			if (unlikely(!buffer_info->page)) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4095
				adapter->alloc_rx_buff_failed++;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4096
				break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4097
			}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4098
		}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4099
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4100
		if (!buffer_info->dma) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4101
			buffer_info->dma = dma_map_page(&pdev->dev,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4102
			                                buffer_info->page, 0,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4103
							buffer_info->length,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4104
							DMA_FROM_DEVICE);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4105
			if (dma_mapping_error(&pdev->dev, buffer_info->dma)) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4106
				put_page(buffer_info->page);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4107
				dev_kfree_skb(skb);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4108
				buffer_info->page = NULL;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4109
				buffer_info->skb = NULL;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4110
				buffer_info->dma = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4111
				adapter->alloc_rx_buff_failed++;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4112
				break; /* while !buffer_info->skb */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4113
			}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4114
		}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4115
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4116
		rx_desc = E1000_RX_DESC(*rx_ring, i);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4117
		rx_desc->buffer_addr = cpu_to_le64(buffer_info->dma);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4118
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4119
		if (unlikely(++i == rx_ring->count))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4120
			i = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4121
		buffer_info = &rx_ring->buffer_info[i];
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4122
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4123
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4124
	if (likely(rx_ring->next_to_use != i)) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4125
		rx_ring->next_to_use = i;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4126
		if (unlikely(i-- == 0))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4127
			i = (rx_ring->count - 1);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4128
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4129
		/* Force memory writes to complete before letting h/w
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4130
		 * know there are new descriptors to fetch.  (Only
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4131
		 * applicable for weak-ordered memory model archs,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4132
		 * such as IA-64). */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4133
		wmb();
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4134
		writel(i, adapter->hw.hw_addr + rx_ring->rdt);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4135
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4136
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4137
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4138
/**
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4139
 * e1000_alloc_rx_buffers - Replace used receive buffers; legacy & extended
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4140
 * @adapter: address of board private structure
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4141
 **/
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4142
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4143
static void e1000_alloc_rx_buffers(struct e1000_adapter *adapter,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4144
				   struct e1000_rx_ring *rx_ring,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4145
				   int cleaned_count)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4146
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4147
	struct e1000_hw *hw = &adapter->hw;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4148
	struct net_device *netdev = adapter->netdev;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4149
	struct pci_dev *pdev = adapter->pdev;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4150
	struct e1000_rx_desc *rx_desc;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4151
	struct e1000_buffer *buffer_info;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4152
	struct sk_buff *skb;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4153
	unsigned int i;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4154
	unsigned int bufsz = adapter->rx_buffer_len;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4155
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4156
	i = rx_ring->next_to_use;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4157
	buffer_info = &rx_ring->buffer_info[i];
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4158
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4159
	while (cleaned_count--) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4160
		skb = buffer_info->skb;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4161
		if (skb) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4162
			skb_trim(skb, 0);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4163
			goto map_skb;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4164
		}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4165
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4166
		skb = netdev_alloc_skb_ip_align(netdev, bufsz);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4167
		if (unlikely(!skb)) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4168
			/* Better luck next round */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4169
			adapter->alloc_rx_buff_failed++;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4170
			break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4171
		}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4172
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4173
		/* Fix for errata 23, can't cross 64kB boundary */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4174
		if (!e1000_check_64k_bound(adapter, skb->data, bufsz)) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4175
			struct sk_buff *oldskb = skb;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4176
			e_err(rx_err, "skb align check failed: %u bytes at "
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4177
			      "%p\n", bufsz, skb->data);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4178
			/* Try again, without freeing the previous */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4179
			skb = netdev_alloc_skb_ip_align(netdev, bufsz);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4180
			/* Failed allocation, critical failure */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4181
			if (!skb) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4182
				dev_kfree_skb(oldskb);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4183
				adapter->alloc_rx_buff_failed++;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4184
				break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4185
			}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4186
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4187
			if (!e1000_check_64k_bound(adapter, skb->data, bufsz)) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4188
				/* give up */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4189
				dev_kfree_skb(skb);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4190
				dev_kfree_skb(oldskb);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4191
				adapter->alloc_rx_buff_failed++;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4192
				break; /* while !buffer_info->skb */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4193
			}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4194
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4195
			/* Use new allocation */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4196
			dev_kfree_skb(oldskb);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4197
		}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4198
		buffer_info->skb = skb;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4199
		buffer_info->length = adapter->rx_buffer_len;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4200
map_skb:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4201
		buffer_info->dma = dma_map_single(&pdev->dev,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4202
						  skb->data,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4203
						  buffer_info->length,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4204
						  DMA_FROM_DEVICE);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4205
		if (dma_mapping_error(&pdev->dev, buffer_info->dma)) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4206
			dev_kfree_skb(skb);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4207
			buffer_info->skb = NULL;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4208
			buffer_info->dma = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4209
			adapter->alloc_rx_buff_failed++;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4210
			break; /* while !buffer_info->skb */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4211
		}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4212
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4213
		/*
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4214
		 * XXX if it was allocated cleanly it will never map to a
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4215
		 * boundary crossing
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4216
		 */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4217
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4218
		/* Fix for errata 23, can't cross 64kB boundary */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4219
		if (!e1000_check_64k_bound(adapter,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4220
					(void *)(unsigned long)buffer_info->dma,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4221
					adapter->rx_buffer_len)) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4222
			e_err(rx_err, "dma align check failed: %u bytes at "
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4223
			      "%p\n", adapter->rx_buffer_len,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4224
			      (void *)(unsigned long)buffer_info->dma);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4225
			dev_kfree_skb(skb);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4226
			buffer_info->skb = NULL;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4227
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4228
			dma_unmap_single(&pdev->dev, buffer_info->dma,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4229
					 adapter->rx_buffer_len,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4230
					 DMA_FROM_DEVICE);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4231
			buffer_info->dma = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4232
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4233
			adapter->alloc_rx_buff_failed++;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4234
			break; /* while !buffer_info->skb */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4235
		}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4236
		rx_desc = E1000_RX_DESC(*rx_ring, i);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4237
		rx_desc->buffer_addr = cpu_to_le64(buffer_info->dma);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4238
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4239
		if (unlikely(++i == rx_ring->count))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4240
			i = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4241
		buffer_info = &rx_ring->buffer_info[i];
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4242
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4243
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4244
	if (likely(rx_ring->next_to_use != i)) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4245
		rx_ring->next_to_use = i;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4246
		if (unlikely(i-- == 0))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4247
			i = (rx_ring->count - 1);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4248
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4249
		/* Force memory writes to complete before letting h/w
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4250
		 * know there are new descriptors to fetch.  (Only
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4251
		 * applicable for weak-ordered memory model archs,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4252
		 * such as IA-64). */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4253
		wmb();
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4254
		writel(i, hw->hw_addr + rx_ring->rdt);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4255
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4256
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4257
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4258
/**
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4259
 * e1000_smartspeed - Workaround for SmartSpeed on 82541 and 82547 controllers.
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4260
 * @adapter:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4261
 **/
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4262
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4263
static void e1000_smartspeed(struct e1000_adapter *adapter)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4264
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4265
	struct e1000_hw *hw = &adapter->hw;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4266
	u16 phy_status;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4267
	u16 phy_ctrl;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4268
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4269
	if ((hw->phy_type != e1000_phy_igp) || !hw->autoneg ||
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4270
	   !(hw->autoneg_advertised & ADVERTISE_1000_FULL))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4271
		return;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4272
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4273
	if (adapter->smartspeed == 0) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4274
		/* If Master/Slave config fault is asserted twice,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4275
		 * we assume back-to-back */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4276
		e1000_read_phy_reg(hw, PHY_1000T_STATUS, &phy_status);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4277
		if (!(phy_status & SR_1000T_MS_CONFIG_FAULT)) return;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4278
		e1000_read_phy_reg(hw, PHY_1000T_STATUS, &phy_status);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4279
		if (!(phy_status & SR_1000T_MS_CONFIG_FAULT)) return;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4280
		e1000_read_phy_reg(hw, PHY_1000T_CTRL, &phy_ctrl);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4281
		if (phy_ctrl & CR_1000T_MS_ENABLE) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4282
			phy_ctrl &= ~CR_1000T_MS_ENABLE;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4283
			e1000_write_phy_reg(hw, PHY_1000T_CTRL,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4284
					    phy_ctrl);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4285
			adapter->smartspeed++;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4286
			if (!e1000_phy_setup_autoneg(hw) &&
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4287
			   !e1000_read_phy_reg(hw, PHY_CTRL,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4288
				   	       &phy_ctrl)) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4289
				phy_ctrl |= (MII_CR_AUTO_NEG_EN |
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4290
					     MII_CR_RESTART_AUTO_NEG);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4291
				e1000_write_phy_reg(hw, PHY_CTRL,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4292
						    phy_ctrl);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4293
			}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4294
		}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4295
		return;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4296
	} else if (adapter->smartspeed == E1000_SMARTSPEED_DOWNSHIFT) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4297
		/* If still no link, perhaps using 2/3 pair cable */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4298
		e1000_read_phy_reg(hw, PHY_1000T_CTRL, &phy_ctrl);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4299
		phy_ctrl |= CR_1000T_MS_ENABLE;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4300
		e1000_write_phy_reg(hw, PHY_1000T_CTRL, phy_ctrl);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4301
		if (!e1000_phy_setup_autoneg(hw) &&
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4302
		   !e1000_read_phy_reg(hw, PHY_CTRL, &phy_ctrl)) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4303
			phy_ctrl |= (MII_CR_AUTO_NEG_EN |
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4304
				     MII_CR_RESTART_AUTO_NEG);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4305
			e1000_write_phy_reg(hw, PHY_CTRL, phy_ctrl);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4306
		}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4307
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4308
	/* Restart process after E1000_SMARTSPEED_MAX iterations */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4309
	if (adapter->smartspeed++ == E1000_SMARTSPEED_MAX)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4310
		adapter->smartspeed = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4311
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4312
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4313
/**
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4314
 * e1000_ioctl -
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4315
 * @netdev:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4316
 * @ifreq:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4317
 * @cmd:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4318
 **/
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4319
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4320
static int e1000_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4321
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4322
	switch (cmd) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4323
	case SIOCGMIIPHY:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4324
	case SIOCGMIIREG:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4325
	case SIOCSMIIREG:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4326
		return e1000_mii_ioctl(netdev, ifr, cmd);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4327
	default:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4328
		return -EOPNOTSUPP;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4329
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4330
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4331
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4332
/**
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4333
 * e1000_mii_ioctl -
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4334
 * @netdev:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4335
 * @ifreq:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4336
 * @cmd:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4337
 **/
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4338
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4339
static int e1000_mii_ioctl(struct net_device *netdev, struct ifreq *ifr,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4340
			   int cmd)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4341
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4342
	struct e1000_adapter *adapter = netdev_priv(netdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4343
	struct e1000_hw *hw = &adapter->hw;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4344
	struct mii_ioctl_data *data = if_mii(ifr);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4345
	int retval;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4346
	u16 mii_reg;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4347
	u16 spddplx;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4348
	unsigned long flags;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4349
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4350
	if (hw->media_type != e1000_media_type_copper)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4351
		return -EOPNOTSUPP;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4352
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4353
	switch (cmd) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4354
	case SIOCGMIIPHY:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4355
		data->phy_id = hw->phy_addr;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4356
		break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4357
	case SIOCGMIIREG:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4358
		spin_lock_irqsave(&adapter->stats_lock, flags);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4359
		if (e1000_read_phy_reg(hw, data->reg_num & 0x1F,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4360
				   &data->val_out)) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4361
			spin_unlock_irqrestore(&adapter->stats_lock, flags);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4362
			return -EIO;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4363
		}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4364
		spin_unlock_irqrestore(&adapter->stats_lock, flags);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4365
		break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4366
	case SIOCSMIIREG:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4367
		if (data->reg_num & ~(0x1F))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4368
			return -EFAULT;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4369
		mii_reg = data->val_in;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4370
		spin_lock_irqsave(&adapter->stats_lock, flags);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4371
		if (e1000_write_phy_reg(hw, data->reg_num,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4372
					mii_reg)) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4373
			spin_unlock_irqrestore(&adapter->stats_lock, flags);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4374
			return -EIO;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4375
		}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4376
		spin_unlock_irqrestore(&adapter->stats_lock, flags);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4377
		if (hw->media_type == e1000_media_type_copper) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4378
			switch (data->reg_num) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4379
			case PHY_CTRL:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4380
				if (mii_reg & MII_CR_POWER_DOWN)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4381
					break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4382
				if (mii_reg & MII_CR_AUTO_NEG_EN) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4383
					hw->autoneg = 1;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4384
					hw->autoneg_advertised = 0x2F;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4385
				} else {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4386
					if (mii_reg & 0x40)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4387
						spddplx = SPEED_1000;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4388
					else if (mii_reg & 0x2000)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4389
						spddplx = SPEED_100;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4390
					else
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4391
						spddplx = SPEED_10;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4392
					spddplx += (mii_reg & 0x100)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4393
						   ? DUPLEX_FULL :
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4394
						   DUPLEX_HALF;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4395
					retval = e1000_set_spd_dplx(adapter,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4396
								    spddplx);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4397
					if (retval)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4398
						return retval;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4399
				}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4400
				if (netif_running(adapter->netdev))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4401
					e1000_reinit_locked(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4402
				else
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4403
					e1000_reset(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4404
				break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4405
			case M88E1000_PHY_SPEC_CTRL:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4406
			case M88E1000_EXT_PHY_SPEC_CTRL:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4407
				if (e1000_phy_reset(hw))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4408
					return -EIO;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4409
				break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4410
			}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4411
		} else {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4412
			switch (data->reg_num) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4413
			case PHY_CTRL:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4414
				if (mii_reg & MII_CR_POWER_DOWN)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4415
					break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4416
				if (netif_running(adapter->netdev))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4417
					e1000_reinit_locked(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4418
				else
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4419
					e1000_reset(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4420
				break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4421
			}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4422
		}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4423
		break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4424
	default:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4425
		return -EOPNOTSUPP;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4426
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4427
	return E1000_SUCCESS;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4428
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4429
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4430
void e1000_pci_set_mwi(struct e1000_hw *hw)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4431
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4432
	struct e1000_adapter *adapter = hw->back;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4433
	int ret_val = pci_set_mwi(adapter->pdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4434
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4435
	if (ret_val)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4436
		e_err(probe, "Error in setting MWI\n");
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4437
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4438
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4439
void e1000_pci_clear_mwi(struct e1000_hw *hw)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4440
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4441
	struct e1000_adapter *adapter = hw->back;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4442
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4443
	pci_clear_mwi(adapter->pdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4444
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4445
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4446
int e1000_pcix_get_mmrbc(struct e1000_hw *hw)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4447
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4448
	struct e1000_adapter *adapter = hw->back;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4449
	return pcix_get_mmrbc(adapter->pdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4450
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4451
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4452
void e1000_pcix_set_mmrbc(struct e1000_hw *hw, int mmrbc)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4453
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4454
	struct e1000_adapter *adapter = hw->back;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4455
	pcix_set_mmrbc(adapter->pdev, mmrbc);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4456
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4457
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4458
void e1000_io_write(struct e1000_hw *hw, unsigned long port, u32 value)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4459
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4460
	outl(value, port);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4461
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4462
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4463
static void e1000_vlan_rx_register(struct net_device *netdev,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4464
				   struct vlan_group *grp)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4465
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4466
	struct e1000_adapter *adapter = netdev_priv(netdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4467
	struct e1000_hw *hw = &adapter->hw;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4468
	u32 ctrl, rctl;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4469
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4470
	if (!test_bit(__E1000_DOWN, &adapter->flags))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4471
		e1000_irq_disable(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4472
	adapter->vlgrp = grp;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4473
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4474
	if (grp) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4475
		/* enable VLAN tag insert/strip */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4476
		ctrl = er32(CTRL);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4477
		ctrl |= E1000_CTRL_VME;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4478
		ew32(CTRL, ctrl);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4479
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4480
		/* enable VLAN receive filtering */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4481
		rctl = er32(RCTL);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4482
		rctl &= ~E1000_RCTL_CFIEN;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4483
		if (!(netdev->flags & IFF_PROMISC))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4484
			rctl |= E1000_RCTL_VFE;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4485
		ew32(RCTL, rctl);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4486
		e1000_update_mng_vlan(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4487
	} else {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4488
		/* disable VLAN tag insert/strip */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4489
		ctrl = er32(CTRL);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4490
		ctrl &= ~E1000_CTRL_VME;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4491
		ew32(CTRL, ctrl);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4492
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4493
		/* disable VLAN receive filtering */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4494
		rctl = er32(RCTL);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4495
		rctl &= ~E1000_RCTL_VFE;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4496
		ew32(RCTL, rctl);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4497
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4498
		if (adapter->mng_vlan_id != (u16)E1000_MNG_VLAN_NONE) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4499
			e1000_vlan_rx_kill_vid(netdev, adapter->mng_vlan_id);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4500
			adapter->mng_vlan_id = E1000_MNG_VLAN_NONE;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4501
		}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4502
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4503
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4504
	if (!test_bit(__E1000_DOWN, &adapter->flags))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4505
		e1000_irq_enable(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4506
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4507
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4508
static void e1000_vlan_rx_add_vid(struct net_device *netdev, u16 vid)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4509
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4510
	struct e1000_adapter *adapter = netdev_priv(netdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4511
	struct e1000_hw *hw = &adapter->hw;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4512
	u32 vfta, index;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4513
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4514
	if ((hw->mng_cookie.status &
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4515
	     E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT) &&
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4516
	    (vid == adapter->mng_vlan_id))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4517
		return;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4518
	/* add VID to filter table */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4519
	index = (vid >> 5) & 0x7F;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4520
	vfta = E1000_READ_REG_ARRAY(hw, VFTA, index);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4521
	vfta |= (1 << (vid & 0x1F));
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4522
	e1000_write_vfta(hw, index, vfta);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4523
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4524
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4525
static void e1000_vlan_rx_kill_vid(struct net_device *netdev, u16 vid)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4526
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4527
	struct e1000_adapter *adapter = netdev_priv(netdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4528
	struct e1000_hw *hw = &adapter->hw;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4529
	u32 vfta, index;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4530
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4531
	if (!test_bit(__E1000_DOWN, &adapter->flags))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4532
		e1000_irq_disable(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4533
	vlan_group_set_device(adapter->vlgrp, vid, NULL);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4534
	if (!test_bit(__E1000_DOWN, &adapter->flags))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4535
		e1000_irq_enable(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4536
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4537
	/* remove VID from filter table */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4538
	index = (vid >> 5) & 0x7F;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4539
	vfta = E1000_READ_REG_ARRAY(hw, VFTA, index);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4540
	vfta &= ~(1 << (vid & 0x1F));
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4541
	e1000_write_vfta(hw, index, vfta);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4542
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4543
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4544
static void e1000_restore_vlan(struct e1000_adapter *adapter)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4545
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4546
	e1000_vlan_rx_register(adapter->netdev, adapter->vlgrp);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4547
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4548
	if (adapter->vlgrp) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4549
		u16 vid;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4550
		for (vid = 0; vid < VLAN_N_VID; vid++) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4551
			if (!vlan_group_get_device(adapter->vlgrp, vid))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4552
				continue;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4553
			e1000_vlan_rx_add_vid(adapter->netdev, vid);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4554
		}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4555
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4556
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4557
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4558
int e1000_set_spd_dplx(struct e1000_adapter *adapter, u16 spddplx)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4559
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4560
	struct e1000_hw *hw = &adapter->hw;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4561
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4562
	hw->autoneg = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4563
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4564
	/* Fiber NICs only allow 1000 gbps Full duplex */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4565
	if ((hw->media_type == e1000_media_type_fiber) &&
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4566
		spddplx != (SPEED_1000 + DUPLEX_FULL)) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4567
		e_err(probe, "Unsupported Speed/Duplex configuration\n");
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4568
		return -EINVAL;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4569
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4570
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4571
	switch (spddplx) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4572
	case SPEED_10 + DUPLEX_HALF:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4573
		hw->forced_speed_duplex = e1000_10_half;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4574
		break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4575
	case SPEED_10 + DUPLEX_FULL:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4576
		hw->forced_speed_duplex = e1000_10_full;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4577
		break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4578
	case SPEED_100 + DUPLEX_HALF:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4579
		hw->forced_speed_duplex = e1000_100_half;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4580
		break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4581
	case SPEED_100 + DUPLEX_FULL:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4582
		hw->forced_speed_duplex = e1000_100_full;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4583
		break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4584
	case SPEED_1000 + DUPLEX_FULL:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4585
		hw->autoneg = 1;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4586
		hw->autoneg_advertised = ADVERTISE_1000_FULL;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4587
		break;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4588
	case SPEED_1000 + DUPLEX_HALF: /* not supported */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4589
	default:
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4590
		e_err(probe, "Unsupported Speed/Duplex configuration\n");
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4591
		return -EINVAL;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4592
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4593
	return 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4594
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4595
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4596
static int __e1000_shutdown(struct pci_dev *pdev, bool *enable_wake)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4597
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4598
	struct net_device *netdev = pci_get_drvdata(pdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4599
	struct e1000_adapter *adapter = netdev_priv(netdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4600
	struct e1000_hw *hw = &adapter->hw;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4601
	u32 ctrl, ctrl_ext, rctl, status;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4602
	u32 wufc = adapter->wol;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4603
#ifdef CONFIG_PM
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4604
	int retval = 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4605
#endif
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4606
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4607
	netif_device_detach(netdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4608
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4609
	if (netif_running(netdev)) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4610
		WARN_ON(test_bit(__E1000_RESETTING, &adapter->flags));
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4611
		e1000_down(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4612
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4613
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4614
#ifdef CONFIG_PM
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4615
	retval = pci_save_state(pdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4616
	if (retval)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4617
		return retval;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4618
#endif
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4619
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4620
	status = er32(STATUS);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4621
	if (status & E1000_STATUS_LU)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4622
		wufc &= ~E1000_WUFC_LNKC;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4623
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4624
	if (wufc) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4625
		e1000_setup_rctl(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4626
		e1000_set_rx_mode(netdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4627
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4628
		/* turn on all-multi mode if wake on multicast is enabled */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4629
		if (wufc & E1000_WUFC_MC) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4630
			rctl = er32(RCTL);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4631
			rctl |= E1000_RCTL_MPE;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4632
			ew32(RCTL, rctl);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4633
		}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4634
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4635
		if (hw->mac_type >= e1000_82540) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4636
			ctrl = er32(CTRL);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4637
			/* advertise wake from D3Cold */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4638
			#define E1000_CTRL_ADVD3WUC 0x00100000
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4639
			/* phy power management enable */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4640
			#define E1000_CTRL_EN_PHY_PWR_MGMT 0x00200000
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4641
			ctrl |= E1000_CTRL_ADVD3WUC |
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4642
				E1000_CTRL_EN_PHY_PWR_MGMT;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4643
			ew32(CTRL, ctrl);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4644
		}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4645
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4646
		if (hw->media_type == e1000_media_type_fiber ||
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4647
		    hw->media_type == e1000_media_type_internal_serdes) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4648
			/* keep the laser running in D3 */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4649
			ctrl_ext = er32(CTRL_EXT);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4650
			ctrl_ext |= E1000_CTRL_EXT_SDP7_DATA;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4651
			ew32(CTRL_EXT, ctrl_ext);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4652
		}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4653
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4654
		ew32(WUC, E1000_WUC_PME_EN);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4655
		ew32(WUFC, wufc);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4656
	} else {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4657
		ew32(WUC, 0);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4658
		ew32(WUFC, 0);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4659
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4660
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4661
	e1000_release_manageability(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4662
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4663
	*enable_wake = !!wufc;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4664
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4665
	/* make sure adapter isn't asleep if manageability is enabled */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4666
	if (adapter->en_mng_pt)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4667
		*enable_wake = true;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4668
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4669
	if (netif_running(netdev))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4670
		e1000_free_irq(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4671
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4672
	pci_disable_device(pdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4673
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4674
	return 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4675
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4676
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4677
#ifdef CONFIG_PM
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4678
static int e1000_suspend(struct pci_dev *pdev, pm_message_t state)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4679
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4680
	int retval;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4681
	bool wake;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4682
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4683
	retval = __e1000_shutdown(pdev, &wake);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4684
	if (retval)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4685
		return retval;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4686
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4687
	if (wake) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4688
		pci_prepare_to_sleep(pdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4689
	} else {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4690
		pci_wake_from_d3(pdev, false);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4691
		pci_set_power_state(pdev, PCI_D3hot);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4692
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4693
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4694
	return 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4695
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4696
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4697
static int e1000_resume(struct pci_dev *pdev)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4698
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4699
	struct net_device *netdev = pci_get_drvdata(pdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4700
	struct e1000_adapter *adapter = netdev_priv(netdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4701
	struct e1000_hw *hw = &adapter->hw;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4702
	u32 err;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4703
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4704
	pci_set_power_state(pdev, PCI_D0);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4705
	pci_restore_state(pdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4706
	pci_save_state(pdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4707
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4708
	if (adapter->need_ioport)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4709
		err = pci_enable_device(pdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4710
	else
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4711
		err = pci_enable_device_mem(pdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4712
	if (err) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4713
		pr_err("Cannot enable PCI device from suspend\n");
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4714
		return err;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4715
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4716
	pci_set_master(pdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4717
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4718
	pci_enable_wake(pdev, PCI_D3hot, 0);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4719
	pci_enable_wake(pdev, PCI_D3cold, 0);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4720
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4721
	if (netif_running(netdev)) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4722
		err = e1000_request_irq(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4723
		if (err)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4724
			return err;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4725
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4726
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4727
	e1000_power_up_phy(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4728
	e1000_reset(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4729
	ew32(WUS, ~0);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4730
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4731
	e1000_init_manageability(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4732
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4733
	if (netif_running(netdev))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4734
		e1000_up(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4735
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4736
	netif_device_attach(netdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4737
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4738
	return 0;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4739
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4740
#endif
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4741
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4742
static void e1000_shutdown(struct pci_dev *pdev)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4743
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4744
	bool wake;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4745
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4746
	__e1000_shutdown(pdev, &wake);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4747
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4748
	if (system_state == SYSTEM_POWER_OFF) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4749
		pci_wake_from_d3(pdev, wake);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4750
		pci_set_power_state(pdev, PCI_D3hot);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4751
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4752
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4753
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4754
#ifdef CONFIG_NET_POLL_CONTROLLER
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4755
/*
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4756
 * Polling 'interrupt' - used by things like netconsole to send skbs
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4757
 * without having to re-enable interrupts. It's not called while
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4758
 * the interrupt routine is executing.
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4759
 */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4760
static void e1000_netpoll(struct net_device *netdev)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4761
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4762
	struct e1000_adapter *adapter = netdev_priv(netdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4763
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4764
	disable_irq(adapter->pdev->irq);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4765
	e1000_intr(adapter->pdev->irq, netdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4766
	enable_irq(adapter->pdev->irq);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4767
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4768
#endif
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4769
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4770
/**
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4771
 * e1000_io_error_detected - called when PCI error is detected
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4772
 * @pdev: Pointer to PCI device
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4773
 * @state: The current pci connection state
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4774
 *
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4775
 * This function is called after a PCI bus error affecting
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4776
 * this device has been detected.
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4777
 */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4778
static pci_ers_result_t e1000_io_error_detected(struct pci_dev *pdev,
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4779
						pci_channel_state_t state)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4780
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4781
	struct net_device *netdev = pci_get_drvdata(pdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4782
	struct e1000_adapter *adapter = netdev_priv(netdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4783
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4784
	netif_device_detach(netdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4785
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4786
	if (state == pci_channel_io_perm_failure)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4787
		return PCI_ERS_RESULT_DISCONNECT;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4788
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4789
	if (netif_running(netdev))
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4790
		e1000_down(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4791
	pci_disable_device(pdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4792
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4793
	/* Request a slot slot reset. */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4794
	return PCI_ERS_RESULT_NEED_RESET;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4795
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4796
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4797
/**
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4798
 * e1000_io_slot_reset - called after the pci bus has been reset.
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4799
 * @pdev: Pointer to PCI device
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4800
 *
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4801
 * Restart the card from scratch, as if from a cold-boot. Implementation
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4802
 * resembles the first-half of the e1000_resume routine.
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4803
 */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4804
static pci_ers_result_t e1000_io_slot_reset(struct pci_dev *pdev)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4805
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4806
	struct net_device *netdev = pci_get_drvdata(pdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4807
	struct e1000_adapter *adapter = netdev_priv(netdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4808
	struct e1000_hw *hw = &adapter->hw;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4809
	int err;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4810
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4811
	if (adapter->need_ioport)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4812
		err = pci_enable_device(pdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4813
	else
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4814
		err = pci_enable_device_mem(pdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4815
	if (err) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4816
		pr_err("Cannot re-enable PCI device after reset.\n");
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4817
		return PCI_ERS_RESULT_DISCONNECT;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4818
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4819
	pci_set_master(pdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4820
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4821
	pci_enable_wake(pdev, PCI_D3hot, 0);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4822
	pci_enable_wake(pdev, PCI_D3cold, 0);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4823
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4824
	e1000_reset(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4825
	ew32(WUS, ~0);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4826
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4827
	return PCI_ERS_RESULT_RECOVERED;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4828
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4829
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4830
/**
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4831
 * e1000_io_resume - called when traffic can start flowing again.
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4832
 * @pdev: Pointer to PCI device
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4833
 *
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4834
 * This callback is called when the error recovery driver tells us that
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4835
 * its OK to resume normal operation. Implementation resembles the
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4836
 * second-half of the e1000_resume routine.
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4837
 */
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4838
static void e1000_io_resume(struct pci_dev *pdev)
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4839
{
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4840
	struct net_device *netdev = pci_get_drvdata(pdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4841
	struct e1000_adapter *adapter = netdev_priv(netdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4842
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4843
	e1000_init_manageability(adapter);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4844
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4845
	if (netif_running(netdev)) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4846
		if (e1000_up(adapter)) {
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4847
			pr_info("can't bring device back up after reset\n");
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4848
			return;
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4849
		}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4850
	}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4851
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4852
	netif_device_attach(netdev);
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4853
}
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4854
312ab8ed8284 Added e1000 driver for 2.6.37.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4855
/* e1000_main.c */