devices/e1000/e1000_main-2.6.35-orig.c
author Philipp Weyer <pw@igh-essen.com>
Fri, 18 Aug 2017 12:30:16 +0200
changeset 2679 33b922ec1871
parent 2282 9c0710c38627
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-k6-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_watchdog(unsigned long data);
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static void e1000_82547_tx_fifo_stall(unsigned long data);
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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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}
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module_exit(e1000_exit_module);
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static int e1000_request_irq(struct e1000_adapter *adapter)
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{
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	struct net_device *netdev = adapter->netdev;
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	irq_handler_t handler = e1000_intr;
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	int irq_flags = IRQF_SHARED;
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   273
	int err;
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	err = request_irq(adapter->pdev->irq, handler, irq_flags, netdev->name,
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	                  netdev);
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	if (err) {
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		e_err("Unable to allocate interrupt Error: %d\n", err);
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	}
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	return err;
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}
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static void e1000_free_irq(struct e1000_adapter *adapter)
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{
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	struct net_device *netdev = adapter->netdev;
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	free_irq(adapter->pdev->irq, netdev);
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}
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/**
9c0710c38627 Added e1000 driver for 2.6.35.
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 * e1000_irq_disable - Mask off interrupt generation on the NIC
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 * @adapter: board private structure
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 **/
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static void e1000_irq_disable(struct e1000_adapter *adapter)
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{
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	struct e1000_hw *hw = &adapter->hw;
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	ew32(IMC, ~0);
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	E1000_WRITE_FLUSH();
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	synchronize_irq(adapter->pdev->irq);
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}
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/**
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 * e1000_irq_enable - Enable default interrupt generation settings
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 * @adapter: board private structure
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 **/
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static void e1000_irq_enable(struct e1000_adapter *adapter)
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{
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	struct e1000_hw *hw = &adapter->hw;
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	ew32(IMS, IMS_ENABLE_MASK);
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	E1000_WRITE_FLUSH();
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}
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   318
static void e1000_update_mng_vlan(struct e1000_adapter *adapter)
9c0710c38627 Added e1000 driver for 2.6.35.
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{
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	struct e1000_hw *hw = &adapter->hw;
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   321
	struct net_device *netdev = adapter->netdev;
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	u16 vid = hw->mng_cookie.vlan_id;
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   323
	u16 old_vid = adapter->mng_vlan_id;
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   324
	if (adapter->vlgrp) {
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   325
		if (!vlan_group_get_device(adapter->vlgrp, vid)) {
9c0710c38627 Added e1000 driver for 2.6.35.
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   326
			if (hw->mng_cookie.status &
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   327
				E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT) {
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   328
				e1000_vlan_rx_add_vid(netdev, vid);
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   329
				adapter->mng_vlan_id = vid;
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   330
			} else
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   331
				adapter->mng_vlan_id = E1000_MNG_VLAN_NONE;
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   332
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   333
			if ((old_vid != (u16)E1000_MNG_VLAN_NONE) &&
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   334
					(vid != old_vid) &&
9c0710c38627 Added e1000 driver for 2.6.35.
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   335
			    !vlan_group_get_device(adapter->vlgrp, old_vid))
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   336
				e1000_vlan_rx_kill_vid(netdev, old_vid);
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   337
		} else
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   338
			adapter->mng_vlan_id = vid;
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   339
	}
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   340
}
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   341
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   342
static void e1000_init_manageability(struct e1000_adapter *adapter)
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   343
{
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   344
	struct e1000_hw *hw = &adapter->hw;
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   345
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   346
	if (adapter->en_mng_pt) {
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   347
		u32 manc = er32(MANC);
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   348
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   349
		/* disable hardware interception of ARP */
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   350
		manc &= ~(E1000_MANC_ARP_EN);
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   351
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   352
		ew32(MANC, manc);
9c0710c38627 Added e1000 driver for 2.6.35.
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   353
	}
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   354
}
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   355
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   356
static void e1000_release_manageability(struct e1000_adapter *adapter)
9c0710c38627 Added e1000 driver for 2.6.35.
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   357
{
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   358
	struct e1000_hw *hw = &adapter->hw;
9c0710c38627 Added e1000 driver for 2.6.35.
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   359
9c0710c38627 Added e1000 driver for 2.6.35.
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   360
	if (adapter->en_mng_pt) {
9c0710c38627 Added e1000 driver for 2.6.35.
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   361
		u32 manc = er32(MANC);
9c0710c38627 Added e1000 driver for 2.6.35.
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   362
9c0710c38627 Added e1000 driver for 2.6.35.
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   363
		/* re-enable hardware interception of ARP */
9c0710c38627 Added e1000 driver for 2.6.35.
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diff changeset
   364
		manc |= E1000_MANC_ARP_EN;
9c0710c38627 Added e1000 driver for 2.6.35.
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diff changeset
   365
9c0710c38627 Added e1000 driver for 2.6.35.
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   366
		ew32(MANC, manc);
9c0710c38627 Added e1000 driver for 2.6.35.
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diff changeset
   367
	}
9c0710c38627 Added e1000 driver for 2.6.35.
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   368
}
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   369
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   370
/**
9c0710c38627 Added e1000 driver for 2.6.35.
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   371
 * e1000_configure - configure the hardware for RX and TX
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   372
 * @adapter = private board structure
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   373
 **/
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   374
static void e1000_configure(struct e1000_adapter *adapter)
9c0710c38627 Added e1000 driver for 2.6.35.
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   375
{
9c0710c38627 Added e1000 driver for 2.6.35.
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   376
	struct net_device *netdev = adapter->netdev;
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   377
	int i;
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   378
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   379
	e1000_set_rx_mode(netdev);
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   380
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   381
	e1000_restore_vlan(adapter);
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   382
	e1000_init_manageability(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
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   383
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   384
	e1000_configure_tx(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
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parents:
diff changeset
   385
	e1000_setup_rctl(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   386
	e1000_configure_rx(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   387
	/* call E1000_DESC_UNUSED which always leaves
9c0710c38627 Added e1000 driver for 2.6.35.
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parents:
diff changeset
   388
	 * at least 1 descriptor unused to make sure
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Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   389
	 * next_to_use != next_to_clean */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   390
	for (i = 0; i < adapter->num_rx_queues; i++) {
9c0710c38627 Added e1000 driver for 2.6.35.
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parents:
diff changeset
   391
		struct e1000_rx_ring *ring = &adapter->rx_ring[i];
9c0710c38627 Added e1000 driver for 2.6.35.
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parents:
diff changeset
   392
		adapter->alloc_rx_buf(adapter, ring,
9c0710c38627 Added e1000 driver for 2.6.35.
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parents:
diff changeset
   393
		                      E1000_DESC_UNUSED(ring));
9c0710c38627 Added e1000 driver for 2.6.35.
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parents:
diff changeset
   394
	}
9c0710c38627 Added e1000 driver for 2.6.35.
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parents:
diff changeset
   395
}
9c0710c38627 Added e1000 driver for 2.6.35.
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parents:
diff changeset
   396
9c0710c38627 Added e1000 driver for 2.6.35.
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parents:
diff changeset
   397
int e1000_up(struct e1000_adapter *adapter)
9c0710c38627 Added e1000 driver for 2.6.35.
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parents:
diff changeset
   398
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   399
	struct e1000_hw *hw = &adapter->hw;
9c0710c38627 Added e1000 driver for 2.6.35.
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parents:
diff changeset
   400
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   401
	/* hardware has been reset, we need to reload some things */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   402
	e1000_configure(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   403
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   404
	clear_bit(__E1000_DOWN, &adapter->flags);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   405
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   406
	napi_enable(&adapter->napi);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   407
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   408
	e1000_irq_enable(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   409
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   410
	netif_wake_queue(adapter->netdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   411
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   412
	/* fire a link change interrupt to start the watchdog */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   413
	ew32(ICS, E1000_ICS_LSC);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   414
	return 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   415
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   416
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   417
/**
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   418
 * e1000_power_up_phy - restore link in case the phy was powered down
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   419
 * @adapter: address of board private structure
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   420
 *
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   421
 * The phy may be powered down to save power and turn off link when the
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   422
 * driver is unloaded and wake on lan is not enabled (among others)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   423
 * *** this routine MUST be followed by a call to e1000_reset ***
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   424
 *
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   425
 **/
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   426
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   427
void e1000_power_up_phy(struct e1000_adapter *adapter)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   428
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   429
	struct e1000_hw *hw = &adapter->hw;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   430
	u16 mii_reg = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   431
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   432
	/* Just clear the power down bit to wake the phy back up */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   433
	if (hw->media_type == e1000_media_type_copper) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   434
		/* according to the manual, the phy will retain its
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   435
		 * settings across a power-down/up cycle */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   436
		e1000_read_phy_reg(hw, PHY_CTRL, &mii_reg);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   437
		mii_reg &= ~MII_CR_POWER_DOWN;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   438
		e1000_write_phy_reg(hw, PHY_CTRL, mii_reg);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   439
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   440
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   441
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   442
static void e1000_power_down_phy(struct e1000_adapter *adapter)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   443
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   444
	struct e1000_hw *hw = &adapter->hw;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   445
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   446
	/* Power down the PHY so no link is implied when interface is down *
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   447
	 * The PHY cannot be powered down if any of the following is true *
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   448
	 * (a) WoL is enabled
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   449
	 * (b) AMT is active
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   450
	 * (c) SoL/IDER session is active */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   451
	if (!adapter->wol && hw->mac_type >= e1000_82540 &&
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   452
	   hw->media_type == e1000_media_type_copper) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   453
		u16 mii_reg = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   454
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   455
		switch (hw->mac_type) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   456
		case e1000_82540:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   457
		case e1000_82545:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   458
		case e1000_82545_rev_3:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   459
		case e1000_82546:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   460
		case e1000_82546_rev_3:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   461
		case e1000_82541:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   462
		case e1000_82541_rev_2:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   463
		case e1000_82547:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   464
		case e1000_82547_rev_2:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   465
			if (er32(MANC) & E1000_MANC_SMBUS_EN)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   466
				goto out;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   467
			break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   468
		default:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   469
			goto out;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   470
		}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   471
		e1000_read_phy_reg(hw, PHY_CTRL, &mii_reg);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   472
		mii_reg |= MII_CR_POWER_DOWN;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   473
		e1000_write_phy_reg(hw, PHY_CTRL, mii_reg);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   474
		mdelay(1);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   475
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   476
out:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   477
	return;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   478
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   479
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   480
void e1000_down(struct e1000_adapter *adapter)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   481
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   482
	struct e1000_hw *hw = &adapter->hw;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   483
	struct net_device *netdev = adapter->netdev;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   484
	u32 rctl, tctl;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   485
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   486
	/* signal that we're down so the interrupt handler does not
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   487
	 * reschedule our watchdog timer */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   488
	set_bit(__E1000_DOWN, &adapter->flags);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   489
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   490
	/* disable receives in the hardware */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   491
	rctl = er32(RCTL);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   492
	ew32(RCTL, rctl & ~E1000_RCTL_EN);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   493
	/* flush and sleep below */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   494
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   495
	netif_tx_disable(netdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   496
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   497
	/* disable transmits in the hardware */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   498
	tctl = er32(TCTL);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   499
	tctl &= ~E1000_TCTL_EN;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   500
	ew32(TCTL, tctl);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   501
	/* flush both disables and wait for them to finish */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   502
	E1000_WRITE_FLUSH();
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   503
	msleep(10);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   504
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   505
	napi_disable(&adapter->napi);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   506
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   507
	e1000_irq_disable(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   508
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   509
	del_timer_sync(&adapter->tx_fifo_stall_timer);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   510
	del_timer_sync(&adapter->watchdog_timer);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   511
	del_timer_sync(&adapter->phy_info_timer);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   512
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   513
	adapter->link_speed = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   514
	adapter->link_duplex = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   515
	netif_carrier_off(netdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   516
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   517
	e1000_reset(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   518
	e1000_clean_all_tx_rings(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   519
	e1000_clean_all_rx_rings(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   520
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   521
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   522
void e1000_reinit_locked(struct e1000_adapter *adapter)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   523
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   524
	WARN_ON(in_interrupt());
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   525
	while (test_and_set_bit(__E1000_RESETTING, &adapter->flags))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   526
		msleep(1);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   527
	e1000_down(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   528
	e1000_up(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   529
	clear_bit(__E1000_RESETTING, &adapter->flags);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   530
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   531
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   532
void e1000_reset(struct e1000_adapter *adapter)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   533
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   534
	struct e1000_hw *hw = &adapter->hw;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   535
	u32 pba = 0, tx_space, min_tx_space, min_rx_space;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   536
	bool legacy_pba_adjust = false;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   537
	u16 hwm;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   538
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   539
	/* Repartition Pba for greater than 9k mtu
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   540
	 * To take effect CTRL.RST is required.
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   541
	 */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   542
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   543
	switch (hw->mac_type) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   544
	case e1000_82542_rev2_0:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   545
	case e1000_82542_rev2_1:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   546
	case e1000_82543:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   547
	case e1000_82544:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   548
	case e1000_82540:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   549
	case e1000_82541:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   550
	case e1000_82541_rev_2:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   551
		legacy_pba_adjust = true;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   552
		pba = E1000_PBA_48K;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   553
		break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   554
	case e1000_82545:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   555
	case e1000_82545_rev_3:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   556
	case e1000_82546:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   557
	case e1000_82546_rev_3:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   558
		pba = E1000_PBA_48K;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   559
		break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   560
	case e1000_82547:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   561
	case e1000_82547_rev_2:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   562
		legacy_pba_adjust = true;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   563
		pba = E1000_PBA_30K;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   564
		break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   565
	case e1000_undefined:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   566
	case e1000_num_macs:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   567
		break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   568
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   569
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   570
	if (legacy_pba_adjust) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   571
		if (hw->max_frame_size > E1000_RXBUFFER_8192)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   572
			pba -= 8; /* allocate more FIFO for Tx */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   573
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   574
		if (hw->mac_type == e1000_82547) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   575
			adapter->tx_fifo_head = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   576
			adapter->tx_head_addr = pba << E1000_TX_HEAD_ADDR_SHIFT;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   577
			adapter->tx_fifo_size =
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   578
				(E1000_PBA_40K - pba) << E1000_PBA_BYTES_SHIFT;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   579
			atomic_set(&adapter->tx_fifo_stall, 0);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   580
		}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   581
	} else if (hw->max_frame_size >  ETH_FRAME_LEN + ETH_FCS_LEN) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   582
		/* adjust PBA for jumbo frames */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   583
		ew32(PBA, pba);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   584
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   585
		/* To maintain wire speed transmits, the Tx FIFO should be
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   586
		 * large enough to accommodate two full transmit packets,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   587
		 * rounded up to the next 1KB and expressed in KB.  Likewise,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   588
		 * the Rx FIFO should be large enough to accommodate at least
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   589
		 * one full receive packet and is similarly rounded up and
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   590
		 * expressed in KB. */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   591
		pba = er32(PBA);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   592
		/* upper 16 bits has Tx packet buffer allocation size in KB */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   593
		tx_space = pba >> 16;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   594
		/* lower 16 bits has Rx packet buffer allocation size in KB */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   595
		pba &= 0xffff;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   596
		/*
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   597
		 * the tx fifo also stores 16 bytes of information about the tx
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   598
		 * but don't include ethernet FCS because hardware appends it
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   599
		 */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   600
		min_tx_space = (hw->max_frame_size +
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   601
		                sizeof(struct e1000_tx_desc) -
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   602
		                ETH_FCS_LEN) * 2;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   603
		min_tx_space = ALIGN(min_tx_space, 1024);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   604
		min_tx_space >>= 10;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   605
		/* software strips receive CRC, so leave room for it */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   606
		min_rx_space = hw->max_frame_size;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   607
		min_rx_space = ALIGN(min_rx_space, 1024);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   608
		min_rx_space >>= 10;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   609
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   610
		/* If current Tx allocation is less than the min Tx FIFO size,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   611
		 * and the min Tx FIFO size is less than the current Rx FIFO
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   612
		 * allocation, take space away from current Rx allocation */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   613
		if (tx_space < min_tx_space &&
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   614
		    ((min_tx_space - tx_space) < pba)) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   615
			pba = pba - (min_tx_space - tx_space);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   616
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   617
			/* PCI/PCIx hardware has PBA alignment constraints */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   618
			switch (hw->mac_type) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   619
			case e1000_82545 ... e1000_82546_rev_3:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   620
				pba &= ~(E1000_PBA_8K - 1);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   621
				break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   622
			default:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   623
				break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   624
			}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   625
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   626
			/* if short on rx space, rx wins and must trump tx
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   627
			 * adjustment or use Early Receive if available */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   628
			if (pba < min_rx_space)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   629
				pba = min_rx_space;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   630
		}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   631
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   632
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   633
	ew32(PBA, pba);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   634
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   635
	/*
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   636
	 * flow control settings:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   637
	 * The high water mark must be low enough to fit one full frame
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   638
	 * (or the size used for early receive) above it in the Rx FIFO.
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   639
	 * Set it to the lower of:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   640
	 * - 90% of the Rx FIFO size, and
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   641
	 * - the full Rx FIFO size minus the early receive size (for parts
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   642
	 *   with ERT support assuming ERT set to E1000_ERT_2048), or
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   643
	 * - the full Rx FIFO size minus one full frame
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   644
	 */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   645
	hwm = min(((pba << 10) * 9 / 10),
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   646
		  ((pba << 10) - hw->max_frame_size));
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   647
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   648
	hw->fc_high_water = hwm & 0xFFF8;	/* 8-byte granularity */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   649
	hw->fc_low_water = hw->fc_high_water - 8;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   650
	hw->fc_pause_time = E1000_FC_PAUSE_TIME;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   651
	hw->fc_send_xon = 1;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   652
	hw->fc = hw->original_fc;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   653
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   654
	/* Allow time for pending master requests to run */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   655
	e1000_reset_hw(hw);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   656
	if (hw->mac_type >= e1000_82544)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   657
		ew32(WUC, 0);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   658
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   659
	if (e1000_init_hw(hw))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   660
		e_err("Hardware Error\n");
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   661
	e1000_update_mng_vlan(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   662
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   663
	/* if (adapter->hwflags & HWFLAGS_PHY_PWR_BIT) { */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   664
	if (hw->mac_type >= e1000_82544 &&
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   665
	    hw->autoneg == 1 &&
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   666
	    hw->autoneg_advertised == ADVERTISE_1000_FULL) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   667
		u32 ctrl = er32(CTRL);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   668
		/* clear phy power management bit if we are in gig only mode,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   669
		 * which if enabled will attempt negotiation to 100Mb, which
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   670
		 * can cause a loss of link at power off or driver unload */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   671
		ctrl &= ~E1000_CTRL_SWDPIN3;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   672
		ew32(CTRL, ctrl);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   673
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   674
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   675
	/* Enable h/w to recognize an 802.1Q VLAN Ethernet packet */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   676
	ew32(VET, ETHERNET_IEEE_VLAN_TYPE);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   677
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   678
	e1000_reset_adaptive(hw);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   679
	e1000_phy_get_info(hw, &adapter->phy_info);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   680
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   681
	e1000_release_manageability(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   682
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   683
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   684
/**
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   685
 *  Dump the eeprom for users having checksum issues
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   686
 **/
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   687
static void e1000_dump_eeprom(struct e1000_adapter *adapter)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   688
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   689
	struct net_device *netdev = adapter->netdev;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   690
	struct ethtool_eeprom eeprom;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   691
	const struct ethtool_ops *ops = netdev->ethtool_ops;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   692
	u8 *data;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   693
	int i;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   694
	u16 csum_old, csum_new = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   695
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   696
	eeprom.len = ops->get_eeprom_len(netdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   697
	eeprom.offset = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   698
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   699
	data = kmalloc(eeprom.len, GFP_KERNEL);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   700
	if (!data) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   701
		pr_err("Unable to allocate memory to dump EEPROM data\n");
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   702
		return;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   703
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   704
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   705
	ops->get_eeprom(netdev, &eeprom, data);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   706
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   707
	csum_old = (data[EEPROM_CHECKSUM_REG * 2]) +
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   708
		   (data[EEPROM_CHECKSUM_REG * 2 + 1] << 8);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   709
	for (i = 0; i < EEPROM_CHECKSUM_REG * 2; i += 2)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   710
		csum_new += data[i] + (data[i + 1] << 8);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   711
	csum_new = EEPROM_SUM - csum_new;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   712
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   713
	pr_err("/*********************/\n");
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   714
	pr_err("Current EEPROM Checksum : 0x%04x\n", csum_old);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   715
	pr_err("Calculated              : 0x%04x\n", csum_new);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   716
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   717
	pr_err("Offset    Values\n");
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   718
	pr_err("========  ======\n");
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   719
	print_hex_dump(KERN_ERR, "", DUMP_PREFIX_OFFSET, 16, 1, data, 128, 0);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   720
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   721
	pr_err("Include this output when contacting your support provider.\n");
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   722
	pr_err("This is not a software error! Something bad happened to\n");
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   723
	pr_err("your hardware or EEPROM image. Ignoring this problem could\n");
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   724
	pr_err("result in further problems, possibly loss of data,\n");
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   725
	pr_err("corruption or system hangs!\n");
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   726
	pr_err("The MAC Address will be reset to 00:00:00:00:00:00,\n");
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   727
	pr_err("which is invalid and requires you to set the proper MAC\n");
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   728
	pr_err("address manually before continuing to enable this network\n");
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   729
	pr_err("device. Please inspect the EEPROM dump and report the\n");
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   730
	pr_err("issue to your hardware vendor or Intel Customer Support.\n");
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   731
	pr_err("/*********************/\n");
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   732
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   733
	kfree(data);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   734
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   735
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   736
/**
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   737
 * e1000_is_need_ioport - determine if an adapter needs ioport resources or not
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   738
 * @pdev: PCI device information struct
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   739
 *
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   740
 * Return true if an adapter needs ioport resources
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   741
 **/
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   742
static int e1000_is_need_ioport(struct pci_dev *pdev)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   743
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   744
	switch (pdev->device) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   745
	case E1000_DEV_ID_82540EM:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   746
	case E1000_DEV_ID_82540EM_LOM:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   747
	case E1000_DEV_ID_82540EP:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   748
	case E1000_DEV_ID_82540EP_LOM:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   749
	case E1000_DEV_ID_82540EP_LP:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   750
	case E1000_DEV_ID_82541EI:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   751
	case E1000_DEV_ID_82541EI_MOBILE:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   752
	case E1000_DEV_ID_82541ER:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   753
	case E1000_DEV_ID_82541ER_LOM:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   754
	case E1000_DEV_ID_82541GI:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   755
	case E1000_DEV_ID_82541GI_LF:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   756
	case E1000_DEV_ID_82541GI_MOBILE:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   757
	case E1000_DEV_ID_82544EI_COPPER:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   758
	case E1000_DEV_ID_82544EI_FIBER:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   759
	case E1000_DEV_ID_82544GC_COPPER:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   760
	case E1000_DEV_ID_82544GC_LOM:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   761
	case E1000_DEV_ID_82545EM_COPPER:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   762
	case E1000_DEV_ID_82545EM_FIBER:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   763
	case E1000_DEV_ID_82546EB_COPPER:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   764
	case E1000_DEV_ID_82546EB_FIBER:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   765
	case E1000_DEV_ID_82546EB_QUAD_COPPER:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   766
		return true;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   767
	default:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   768
		return false;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   769
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   770
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   771
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   772
static const struct net_device_ops e1000_netdev_ops = {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   773
	.ndo_open		= e1000_open,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   774
	.ndo_stop		= e1000_close,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   775
	.ndo_start_xmit		= e1000_xmit_frame,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   776
	.ndo_get_stats		= e1000_get_stats,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   777
	.ndo_set_rx_mode	= e1000_set_rx_mode,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   778
	.ndo_set_mac_address	= e1000_set_mac,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   779
	.ndo_tx_timeout 	= e1000_tx_timeout,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   780
	.ndo_change_mtu		= e1000_change_mtu,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   781
	.ndo_do_ioctl		= e1000_ioctl,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   782
	.ndo_validate_addr	= eth_validate_addr,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   783
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   784
	.ndo_vlan_rx_register	= e1000_vlan_rx_register,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   785
	.ndo_vlan_rx_add_vid	= e1000_vlan_rx_add_vid,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   786
	.ndo_vlan_rx_kill_vid	= e1000_vlan_rx_kill_vid,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   787
#ifdef CONFIG_NET_POLL_CONTROLLER
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   788
	.ndo_poll_controller	= e1000_netpoll,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   789
#endif
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   790
};
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   791
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   792
/**
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   793
 * e1000_probe - Device Initialization Routine
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   794
 * @pdev: PCI device information struct
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   795
 * @ent: entry in e1000_pci_tbl
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   796
 *
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   797
 * Returns 0 on success, negative on failure
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   798
 *
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   799
 * e1000_probe initializes an adapter identified by a pci_dev structure.
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   800
 * The OS initialization, configuring of the adapter private structure,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   801
 * and a hardware reset occur.
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   802
 **/
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   803
static int __devinit e1000_probe(struct pci_dev *pdev,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   804
				 const struct pci_device_id *ent)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   805
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   806
	struct net_device *netdev;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   807
	struct e1000_adapter *adapter;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   808
	struct e1000_hw *hw;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   809
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   810
	static int cards_found = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   811
	static int global_quad_port_a = 0; /* global ksp3 port a indication */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   812
	int i, err, pci_using_dac;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   813
	u16 eeprom_data = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   814
	u16 eeprom_apme_mask = E1000_EEPROM_APME;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   815
	int bars, need_ioport;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   816
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   817
	/* do not allocate ioport bars when not needed */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   818
	need_ioport = e1000_is_need_ioport(pdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   819
	if (need_ioport) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   820
		bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   821
		err = pci_enable_device(pdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   822
	} else {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   823
		bars = pci_select_bars(pdev, IORESOURCE_MEM);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   824
		err = pci_enable_device_mem(pdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   825
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   826
	if (err)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   827
		return err;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   828
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   829
	if (!dma_set_mask(&pdev->dev, DMA_BIT_MASK(64)) &&
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   830
	    !dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64))) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   831
		pci_using_dac = 1;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   832
	} else {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   833
		err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   834
		if (err) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   835
			err = dma_set_coherent_mask(&pdev->dev,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   836
						    DMA_BIT_MASK(32));
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   837
			if (err) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   838
				pr_err("No usable DMA config, aborting\n");
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   839
				goto err_dma;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   840
			}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   841
		}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   842
		pci_using_dac = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   843
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   844
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   845
	err = pci_request_selected_regions(pdev, bars, e1000_driver_name);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   846
	if (err)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   847
		goto err_pci_reg;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   848
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   849
	pci_set_master(pdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   850
	err = pci_save_state(pdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   851
	if (err)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   852
		goto err_alloc_etherdev;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   853
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   854
	err = -ENOMEM;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   855
	netdev = alloc_etherdev(sizeof(struct e1000_adapter));
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   856
	if (!netdev)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   857
		goto err_alloc_etherdev;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   858
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   859
	SET_NETDEV_DEV(netdev, &pdev->dev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   860
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   861
	pci_set_drvdata(pdev, netdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   862
	adapter = netdev_priv(netdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   863
	adapter->netdev = netdev;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   864
	adapter->pdev = pdev;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   865
	adapter->msg_enable = (1 << debug) - 1;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   866
	adapter->bars = bars;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   867
	adapter->need_ioport = need_ioport;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   868
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   869
	hw = &adapter->hw;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   870
	hw->back = adapter;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   871
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   872
	err = -EIO;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   873
	hw->hw_addr = pci_ioremap_bar(pdev, BAR_0);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   874
	if (!hw->hw_addr)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   875
		goto err_ioremap;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   876
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   877
	if (adapter->need_ioport) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   878
		for (i = BAR_1; i <= BAR_5; i++) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   879
			if (pci_resource_len(pdev, i) == 0)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   880
				continue;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   881
			if (pci_resource_flags(pdev, i) & IORESOURCE_IO) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   882
				hw->io_base = pci_resource_start(pdev, i);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   883
				break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   884
			}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   885
		}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   886
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   887
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   888
	netdev->netdev_ops = &e1000_netdev_ops;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   889
	e1000_set_ethtool_ops(netdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   890
	netdev->watchdog_timeo = 5 * HZ;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   891
	netif_napi_add(netdev, &adapter->napi, e1000_clean, 64);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   892
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   893
	strncpy(netdev->name, pci_name(pdev), sizeof(netdev->name) - 1);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   894
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   895
	adapter->bd_number = cards_found;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   896
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   897
	/* setup the private structure */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   898
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   899
	err = e1000_sw_init(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   900
	if (err)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   901
		goto err_sw_init;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   902
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   903
	err = -EIO;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   904
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   905
	if (hw->mac_type >= e1000_82543) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   906
		netdev->features = NETIF_F_SG |
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   907
				   NETIF_F_HW_CSUM |
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   908
				   NETIF_F_HW_VLAN_TX |
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   909
				   NETIF_F_HW_VLAN_RX |
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   910
				   NETIF_F_HW_VLAN_FILTER;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   911
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   912
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   913
	if ((hw->mac_type >= e1000_82544) &&
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   914
	   (hw->mac_type != e1000_82547))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   915
		netdev->features |= NETIF_F_TSO;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   916
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   917
	if (pci_using_dac)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   918
		netdev->features |= NETIF_F_HIGHDMA;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   919
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   920
	netdev->vlan_features |= NETIF_F_TSO;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   921
	netdev->vlan_features |= NETIF_F_HW_CSUM;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   922
	netdev->vlan_features |= NETIF_F_SG;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   923
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   924
	adapter->en_mng_pt = e1000_enable_mng_pass_thru(hw);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   925
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   926
	/* initialize eeprom parameters */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   927
	if (e1000_init_eeprom_params(hw)) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   928
		e_err("EEPROM initialization failed\n");
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   929
		goto err_eeprom;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   930
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   931
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   932
	/* before reading the EEPROM, reset the controller to
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   933
	 * put the device in a known good starting state */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   934
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   935
	e1000_reset_hw(hw);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   936
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   937
	/* make sure the EEPROM is good */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   938
	if (e1000_validate_eeprom_checksum(hw) < 0) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   939
		e_err("The EEPROM Checksum Is Not Valid\n");
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   940
		e1000_dump_eeprom(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   941
		/*
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   942
		 * set MAC address to all zeroes to invalidate and temporary
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   943
		 * disable this device for the user. This blocks regular
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   944
		 * traffic while still permitting ethtool ioctls from reaching
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   945
		 * the hardware as well as allowing the user to run the
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   946
		 * interface after manually setting a hw addr using
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   947
		 * `ip set address`
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   948
		 */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   949
		memset(hw->mac_addr, 0, netdev->addr_len);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   950
	} else {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   951
		/* copy the MAC address out of the EEPROM */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   952
		if (e1000_read_mac_addr(hw))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   953
			e_err("EEPROM Read Error\n");
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   954
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   955
	/* don't block initalization here due to bad MAC address */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   956
	memcpy(netdev->dev_addr, hw->mac_addr, netdev->addr_len);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   957
	memcpy(netdev->perm_addr, hw->mac_addr, netdev->addr_len);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   958
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   959
	if (!is_valid_ether_addr(netdev->perm_addr))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   960
		e_err("Invalid MAC Address\n");
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   961
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   962
	e1000_get_bus_info(hw);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   963
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   964
	init_timer(&adapter->tx_fifo_stall_timer);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   965
	adapter->tx_fifo_stall_timer.function = &e1000_82547_tx_fifo_stall;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   966
	adapter->tx_fifo_stall_timer.data = (unsigned long)adapter;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   967
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   968
	init_timer(&adapter->watchdog_timer);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   969
	adapter->watchdog_timer.function = &e1000_watchdog;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   970
	adapter->watchdog_timer.data = (unsigned long) adapter;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   971
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   972
	init_timer(&adapter->phy_info_timer);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   973
	adapter->phy_info_timer.function = &e1000_update_phy_info;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   974
	adapter->phy_info_timer.data = (unsigned long)adapter;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   975
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   976
	INIT_WORK(&adapter->reset_task, e1000_reset_task);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   977
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   978
	e1000_check_options(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   979
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   980
	/* Initial Wake on LAN setting
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   981
	 * If APM wake is enabled in the EEPROM,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   982
	 * enable the ACPI Magic Packet filter
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   983
	 */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   984
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   985
	switch (hw->mac_type) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   986
	case e1000_82542_rev2_0:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   987
	case e1000_82542_rev2_1:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   988
	case e1000_82543:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   989
		break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   990
	case e1000_82544:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   991
		e1000_read_eeprom(hw,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   992
			EEPROM_INIT_CONTROL2_REG, 1, &eeprom_data);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   993
		eeprom_apme_mask = E1000_EEPROM_82544_APM;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   994
		break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   995
	case e1000_82546:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   996
	case e1000_82546_rev_3:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   997
		if (er32(STATUS) & E1000_STATUS_FUNC_1){
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   998
			e1000_read_eeprom(hw,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
   999
				EEPROM_INIT_CONTROL3_PORT_B, 1, &eeprom_data);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1000
			break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1001
		}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1002
		/* Fall Through */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1003
	default:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1004
		e1000_read_eeprom(hw,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1005
			EEPROM_INIT_CONTROL3_PORT_A, 1, &eeprom_data);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1006
		break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1007
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1008
	if (eeprom_data & eeprom_apme_mask)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1009
		adapter->eeprom_wol |= E1000_WUFC_MAG;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1010
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1011
	/* now that we have the eeprom settings, apply the special cases
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1012
	 * where the eeprom may be wrong or the board simply won't support
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1013
	 * wake on lan on a particular port */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1014
	switch (pdev->device) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1015
	case E1000_DEV_ID_82546GB_PCIE:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1016
		adapter->eeprom_wol = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1017
		break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1018
	case E1000_DEV_ID_82546EB_FIBER:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1019
	case E1000_DEV_ID_82546GB_FIBER:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1020
		/* Wake events only supported on port A for dual fiber
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1021
		 * regardless of eeprom setting */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1022
		if (er32(STATUS) & E1000_STATUS_FUNC_1)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1023
			adapter->eeprom_wol = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1024
		break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1025
	case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1026
		/* if quad port adapter, disable WoL on all but port A */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1027
		if (global_quad_port_a != 0)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1028
			adapter->eeprom_wol = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1029
		else
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1030
			adapter->quad_port_a = 1;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1031
		/* Reset for multiple quad port adapters */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1032
		if (++global_quad_port_a == 4)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1033
			global_quad_port_a = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1034
		break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1035
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1036
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1037
	/* initialize the wol settings based on the eeprom settings */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1038
	adapter->wol = adapter->eeprom_wol;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1039
	device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1040
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1041
	/* reset the hardware with the new settings */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1042
	e1000_reset(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1043
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1044
	strcpy(netdev->name, "eth%d");
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1045
	err = register_netdev(netdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1046
	if (err)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1047
		goto err_register;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1048
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1049
	/* print bus type/speed/width info */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1050
	e_info("(PCI%s:%dMHz:%d-bit) %pM\n",
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1051
	       ((hw->bus_type == e1000_bus_type_pcix) ? "-X" : ""),
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1052
	       ((hw->bus_speed == e1000_bus_speed_133) ? 133 :
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1053
		(hw->bus_speed == e1000_bus_speed_120) ? 120 :
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1054
		(hw->bus_speed == e1000_bus_speed_100) ? 100 :
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1055
		(hw->bus_speed == e1000_bus_speed_66) ? 66 : 33),
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1056
	       ((hw->bus_width == e1000_bus_width_64) ? 64 : 32),
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1057
	       netdev->dev_addr);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1058
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1059
	/* carrier off reporting is important to ethtool even BEFORE open */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1060
	netif_carrier_off(netdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1061
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1062
	e_info("Intel(R) PRO/1000 Network Connection\n");
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1063
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1064
	cards_found++;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1065
	return 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1066
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1067
err_register:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1068
err_eeprom:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1069
	e1000_phy_hw_reset(hw);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1070
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1071
	if (hw->flash_address)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1072
		iounmap(hw->flash_address);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1073
	kfree(adapter->tx_ring);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1074
	kfree(adapter->rx_ring);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1075
err_sw_init:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1076
	iounmap(hw->hw_addr);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1077
err_ioremap:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1078
	free_netdev(netdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1079
err_alloc_etherdev:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1080
	pci_release_selected_regions(pdev, bars);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1081
err_pci_reg:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1082
err_dma:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1083
	pci_disable_device(pdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1084
	return err;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1085
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1086
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1087
/**
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1088
 * e1000_remove - Device Removal Routine
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1089
 * @pdev: PCI device information struct
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1090
 *
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1091
 * e1000_remove is called by the PCI subsystem to alert the driver
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1092
 * that it should release a PCI device.  The could be caused by a
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1093
 * Hot-Plug event, or because the driver is going to be removed from
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1094
 * memory.
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1095
 **/
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1096
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1097
static void __devexit e1000_remove(struct pci_dev *pdev)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1098
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1099
	struct net_device *netdev = pci_get_drvdata(pdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1100
	struct e1000_adapter *adapter = netdev_priv(netdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1101
	struct e1000_hw *hw = &adapter->hw;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1102
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1103
	set_bit(__E1000_DOWN, &adapter->flags);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1104
	del_timer_sync(&adapter->tx_fifo_stall_timer);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1105
	del_timer_sync(&adapter->watchdog_timer);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1106
	del_timer_sync(&adapter->phy_info_timer);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1107
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1108
	cancel_work_sync(&adapter->reset_task);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1109
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1110
	e1000_release_manageability(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1111
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1112
	unregister_netdev(netdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1113
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1114
	e1000_phy_hw_reset(hw);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1115
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1116
	kfree(adapter->tx_ring);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1117
	kfree(adapter->rx_ring);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1118
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1119
	iounmap(hw->hw_addr);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1120
	if (hw->flash_address)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1121
		iounmap(hw->flash_address);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1122
	pci_release_selected_regions(pdev, adapter->bars);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1123
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1124
	free_netdev(netdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1125
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1126
	pci_disable_device(pdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1127
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1128
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1129
/**
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1130
 * e1000_sw_init - Initialize general software structures (struct e1000_adapter)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1131
 * @adapter: board private structure to initialize
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1132
 *
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1133
 * e1000_sw_init initializes the Adapter private data structure.
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1134
 * Fields are initialized based on PCI device information and
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1135
 * OS network device settings (MTU size).
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1136
 **/
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1137
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1138
static int __devinit e1000_sw_init(struct e1000_adapter *adapter)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1139
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1140
	struct e1000_hw *hw = &adapter->hw;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1141
	struct net_device *netdev = adapter->netdev;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1142
	struct pci_dev *pdev = adapter->pdev;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1143
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1144
	/* PCI config space info */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1145
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1146
	hw->vendor_id = pdev->vendor;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1147
	hw->device_id = pdev->device;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1148
	hw->subsystem_vendor_id = pdev->subsystem_vendor;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1149
	hw->subsystem_id = pdev->subsystem_device;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1150
	hw->revision_id = pdev->revision;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1151
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1152
	pci_read_config_word(pdev, PCI_COMMAND, &hw->pci_cmd_word);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1153
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1154
	adapter->rx_buffer_len = MAXIMUM_ETHERNET_VLAN_SIZE;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1155
	hw->max_frame_size = netdev->mtu +
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1156
			     ENET_HEADER_SIZE + ETHERNET_FCS_SIZE;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1157
	hw->min_frame_size = MINIMUM_ETHERNET_FRAME_SIZE;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1158
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1159
	/* identify the MAC */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1160
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1161
	if (e1000_set_mac_type(hw)) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1162
		e_err("Unknown MAC Type\n");
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1163
		return -EIO;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1164
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1165
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1166
	switch (hw->mac_type) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1167
	default:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1168
		break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1169
	case e1000_82541:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1170
	case e1000_82547:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1171
	case e1000_82541_rev_2:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1172
	case e1000_82547_rev_2:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1173
		hw->phy_init_script = 1;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1174
		break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1175
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1176
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1177
	e1000_set_media_type(hw);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1178
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1179
	hw->wait_autoneg_complete = false;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1180
	hw->tbi_compatibility_en = true;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1181
	hw->adaptive_ifs = true;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1182
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1183
	/* Copper options */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1184
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1185
	if (hw->media_type == e1000_media_type_copper) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1186
		hw->mdix = AUTO_ALL_MODES;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1187
		hw->disable_polarity_correction = false;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1188
		hw->master_slave = E1000_MASTER_SLAVE;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1189
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1190
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1191
	adapter->num_tx_queues = 1;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1192
	adapter->num_rx_queues = 1;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1193
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1194
	if (e1000_alloc_queues(adapter)) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1195
		e_err("Unable to allocate memory for queues\n");
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1196
		return -ENOMEM;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1197
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1198
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1199
	/* Explicitly disable IRQ since the NIC can be in any state. */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1200
	e1000_irq_disable(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1201
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1202
	spin_lock_init(&adapter->stats_lock);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1203
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1204
	set_bit(__E1000_DOWN, &adapter->flags);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1205
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1206
	return 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1207
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1208
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1209
/**
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1210
 * e1000_alloc_queues - Allocate memory for all rings
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1211
 * @adapter: board private structure to initialize
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1212
 *
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1213
 * We allocate one ring per queue at run-time since we don't know the
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1214
 * number of queues at compile-time.
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1215
 **/
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1216
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1217
static int __devinit e1000_alloc_queues(struct e1000_adapter *adapter)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1218
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1219
	adapter->tx_ring = kcalloc(adapter->num_tx_queues,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1220
	                           sizeof(struct e1000_tx_ring), GFP_KERNEL);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1221
	if (!adapter->tx_ring)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1222
		return -ENOMEM;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1223
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1224
	adapter->rx_ring = kcalloc(adapter->num_rx_queues,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1225
	                           sizeof(struct e1000_rx_ring), GFP_KERNEL);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1226
	if (!adapter->rx_ring) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1227
		kfree(adapter->tx_ring);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1228
		return -ENOMEM;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1229
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1230
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1231
	return E1000_SUCCESS;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1232
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1233
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1234
/**
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1235
 * e1000_open - Called when a network interface is made active
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1236
 * @netdev: network interface device structure
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1237
 *
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1238
 * Returns 0 on success, negative value on failure
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1239
 *
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1240
 * The open entry point is called when a network interface is made
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1241
 * active by the system (IFF_UP).  At this point all resources needed
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1242
 * for transmit and receive operations are allocated, the interrupt
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1243
 * handler is registered with the OS, the watchdog timer is started,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1244
 * and the stack is notified that the interface is ready.
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1245
 **/
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1246
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1247
static int e1000_open(struct net_device *netdev)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1248
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1249
	struct e1000_adapter *adapter = netdev_priv(netdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1250
	struct e1000_hw *hw = &adapter->hw;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1251
	int err;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1252
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1253
	/* disallow open during test */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1254
	if (test_bit(__E1000_TESTING, &adapter->flags))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1255
		return -EBUSY;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1256
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1257
	netif_carrier_off(netdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1258
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1259
	/* allocate transmit descriptors */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1260
	err = e1000_setup_all_tx_resources(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1261
	if (err)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1262
		goto err_setup_tx;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1263
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1264
	/* allocate receive descriptors */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1265
	err = e1000_setup_all_rx_resources(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1266
	if (err)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1267
		goto err_setup_rx;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1268
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1269
	e1000_power_up_phy(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1270
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1271
	adapter->mng_vlan_id = E1000_MNG_VLAN_NONE;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1272
	if ((hw->mng_cookie.status &
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1273
			  E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT)) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1274
		e1000_update_mng_vlan(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1275
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1276
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1277
	/* before we allocate an interrupt, we must be ready to handle it.
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1278
	 * Setting DEBUG_SHIRQ in the kernel makes it fire an interrupt
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1279
	 * as soon as we call pci_request_irq, so we have to setup our
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1280
	 * clean_rx handler before we do so.  */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1281
	e1000_configure(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1282
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1283
	err = e1000_request_irq(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1284
	if (err)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1285
		goto err_req_irq;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1286
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1287
	/* From here on the code is the same as e1000_up() */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1288
	clear_bit(__E1000_DOWN, &adapter->flags);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1289
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1290
	napi_enable(&adapter->napi);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1291
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1292
	e1000_irq_enable(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1293
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1294
	netif_start_queue(netdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1295
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1296
	/* fire a link status change interrupt to start the watchdog */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1297
	ew32(ICS, E1000_ICS_LSC);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1298
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1299
	return E1000_SUCCESS;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1300
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1301
err_req_irq:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1302
	e1000_power_down_phy(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1303
	e1000_free_all_rx_resources(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1304
err_setup_rx:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1305
	e1000_free_all_tx_resources(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1306
err_setup_tx:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1307
	e1000_reset(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1308
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1309
	return err;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1310
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1311
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1312
/**
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1313
 * e1000_close - Disables a network interface
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1314
 * @netdev: network interface device structure
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1315
 *
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1316
 * Returns 0, this is not allowed to fail
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1317
 *
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1318
 * The close entry point is called when an interface is de-activated
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1319
 * by the OS.  The hardware is still under the drivers control, but
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1320
 * needs to be disabled.  A global MAC reset is issued to stop the
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1321
 * hardware, and all transmit and receive resources are freed.
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1322
 **/
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1323
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1324
static int e1000_close(struct net_device *netdev)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1325
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1326
	struct e1000_adapter *adapter = netdev_priv(netdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1327
	struct e1000_hw *hw = &adapter->hw;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1328
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1329
	WARN_ON(test_bit(__E1000_RESETTING, &adapter->flags));
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1330
	e1000_down(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1331
	e1000_power_down_phy(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1332
	e1000_free_irq(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1333
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1334
	e1000_free_all_tx_resources(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1335
	e1000_free_all_rx_resources(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1336
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1337
	/* kill manageability vlan ID if supported, but not if a vlan with
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1338
	 * the same ID is registered on the host OS (let 8021q kill it) */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1339
	if ((hw->mng_cookie.status &
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1340
			  E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT) &&
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1341
	     !(adapter->vlgrp &&
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1342
	       vlan_group_get_device(adapter->vlgrp, adapter->mng_vlan_id))) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1343
		e1000_vlan_rx_kill_vid(netdev, adapter->mng_vlan_id);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1344
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1345
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1346
	return 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1347
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1348
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1349
/**
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1350
 * e1000_check_64k_bound - check that memory doesn't cross 64kB boundary
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1351
 * @adapter: address of board private structure
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1352
 * @start: address of beginning of memory
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1353
 * @len: length of memory
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1354
 **/
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1355
static bool e1000_check_64k_bound(struct e1000_adapter *adapter, void *start,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1356
				  unsigned long len)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1357
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1358
	struct e1000_hw *hw = &adapter->hw;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1359
	unsigned long begin = (unsigned long)start;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1360
	unsigned long end = begin + len;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1361
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1362
	/* First rev 82545 and 82546 need to not allow any memory
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1363
	 * write location to cross 64k boundary due to errata 23 */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1364
	if (hw->mac_type == e1000_82545 ||
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1365
	    hw->mac_type == e1000_82546) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1366
		return ((begin ^ (end - 1)) >> 16) != 0 ? false : true;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1367
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1368
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1369
	return true;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1370
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1371
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1372
/**
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1373
 * e1000_setup_tx_resources - allocate Tx resources (Descriptors)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1374
 * @adapter: board private structure
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1375
 * @txdr:    tx descriptor ring (for a specific queue) to setup
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1376
 *
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1377
 * Return 0 on success, negative on failure
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1378
 **/
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1379
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1380
static int e1000_setup_tx_resources(struct e1000_adapter *adapter,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1381
				    struct e1000_tx_ring *txdr)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1382
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1383
	struct pci_dev *pdev = adapter->pdev;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1384
	int size;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1385
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1386
	size = sizeof(struct e1000_buffer) * txdr->count;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1387
	txdr->buffer_info = vmalloc(size);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1388
	if (!txdr->buffer_info) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1389
		e_err("Unable to allocate memory for the Tx descriptor ring\n");
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1390
		return -ENOMEM;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1391
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1392
	memset(txdr->buffer_info, 0, size);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1393
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1394
	/* round up to nearest 4K */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1395
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1396
	txdr->size = txdr->count * sizeof(struct e1000_tx_desc);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1397
	txdr->size = ALIGN(txdr->size, 4096);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1398
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1399
	txdr->desc = dma_alloc_coherent(&pdev->dev, txdr->size, &txdr->dma,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1400
					GFP_KERNEL);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1401
	if (!txdr->desc) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1402
setup_tx_desc_die:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1403
		vfree(txdr->buffer_info);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1404
		e_err("Unable to allocate memory for the Tx descriptor ring\n");
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1405
		return -ENOMEM;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1406
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1407
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1408
	/* Fix for errata 23, can't cross 64kB boundary */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1409
	if (!e1000_check_64k_bound(adapter, txdr->desc, txdr->size)) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1410
		void *olddesc = txdr->desc;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1411
		dma_addr_t olddma = txdr->dma;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1412
		e_err("txdr align check failed: %u bytes at %p\n",
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1413
		      txdr->size, txdr->desc);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1414
		/* Try again, without freeing the previous */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1415
		txdr->desc = dma_alloc_coherent(&pdev->dev, txdr->size,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1416
						&txdr->dma, GFP_KERNEL);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1417
		/* Failed allocation, critical failure */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1418
		if (!txdr->desc) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1419
			dma_free_coherent(&pdev->dev, txdr->size, olddesc,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1420
					  olddma);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1421
			goto setup_tx_desc_die;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1422
		}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1423
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1424
		if (!e1000_check_64k_bound(adapter, txdr->desc, txdr->size)) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1425
			/* give up */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1426
			dma_free_coherent(&pdev->dev, txdr->size, txdr->desc,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1427
					  txdr->dma);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1428
			dma_free_coherent(&pdev->dev, txdr->size, olddesc,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1429
					  olddma);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1430
			e_err("Unable to allocate aligned memory "
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1431
			      "for the transmit descriptor ring\n");
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1432
			vfree(txdr->buffer_info);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1433
			return -ENOMEM;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1434
		} else {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1435
			/* Free old allocation, new allocation was successful */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1436
			dma_free_coherent(&pdev->dev, txdr->size, olddesc,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1437
					  olddma);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1438
		}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1439
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1440
	memset(txdr->desc, 0, txdr->size);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1441
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1442
	txdr->next_to_use = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1443
	txdr->next_to_clean = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1444
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1445
	return 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1446
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1447
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1448
/**
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1449
 * e1000_setup_all_tx_resources - wrapper to allocate Tx resources
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1450
 * 				  (Descriptors) for all queues
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1451
 * @adapter: board private structure
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1452
 *
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1453
 * Return 0 on success, negative on failure
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1454
 **/
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1455
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1456
int e1000_setup_all_tx_resources(struct e1000_adapter *adapter)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1457
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1458
	int i, err = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1459
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1460
	for (i = 0; i < adapter->num_tx_queues; i++) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1461
		err = e1000_setup_tx_resources(adapter, &adapter->tx_ring[i]);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1462
		if (err) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1463
			e_err("Allocation for Tx Queue %u failed\n", i);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1464
			for (i-- ; i >= 0; i--)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1465
				e1000_free_tx_resources(adapter,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1466
							&adapter->tx_ring[i]);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1467
			break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1468
		}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1469
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1470
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1471
	return err;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1472
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1473
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1474
/**
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1475
 * e1000_configure_tx - Configure 8254x Transmit Unit after Reset
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1476
 * @adapter: board private structure
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1477
 *
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1478
 * Configure the Tx unit of the MAC after a reset.
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1479
 **/
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1480
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1481
static void e1000_configure_tx(struct e1000_adapter *adapter)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1482
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1483
	u64 tdba;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1484
	struct e1000_hw *hw = &adapter->hw;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1485
	u32 tdlen, tctl, tipg;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1486
	u32 ipgr1, ipgr2;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1487
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1488
	/* Setup the HW Tx Head and Tail descriptor pointers */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1489
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1490
	switch (adapter->num_tx_queues) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1491
	case 1:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1492
	default:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1493
		tdba = adapter->tx_ring[0].dma;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1494
		tdlen = adapter->tx_ring[0].count *
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1495
			sizeof(struct e1000_tx_desc);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1496
		ew32(TDLEN, tdlen);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1497
		ew32(TDBAH, (tdba >> 32));
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1498
		ew32(TDBAL, (tdba & 0x00000000ffffffffULL));
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1499
		ew32(TDT, 0);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1500
		ew32(TDH, 0);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1501
		adapter->tx_ring[0].tdh = ((hw->mac_type >= e1000_82543) ? E1000_TDH : E1000_82542_TDH);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1502
		adapter->tx_ring[0].tdt = ((hw->mac_type >= e1000_82543) ? E1000_TDT : E1000_82542_TDT);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1503
		break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1504
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1505
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1506
	/* Set the default values for the Tx Inter Packet Gap timer */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1507
	if ((hw->media_type == e1000_media_type_fiber ||
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1508
	     hw->media_type == e1000_media_type_internal_serdes))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1509
		tipg = DEFAULT_82543_TIPG_IPGT_FIBER;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1510
	else
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1511
		tipg = DEFAULT_82543_TIPG_IPGT_COPPER;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1512
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1513
	switch (hw->mac_type) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1514
	case e1000_82542_rev2_0:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1515
	case e1000_82542_rev2_1:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1516
		tipg = DEFAULT_82542_TIPG_IPGT;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1517
		ipgr1 = DEFAULT_82542_TIPG_IPGR1;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1518
		ipgr2 = DEFAULT_82542_TIPG_IPGR2;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1519
		break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1520
	default:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1521
		ipgr1 = DEFAULT_82543_TIPG_IPGR1;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1522
		ipgr2 = DEFAULT_82543_TIPG_IPGR2;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1523
		break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1524
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1525
	tipg |= ipgr1 << E1000_TIPG_IPGR1_SHIFT;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1526
	tipg |= ipgr2 << E1000_TIPG_IPGR2_SHIFT;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1527
	ew32(TIPG, tipg);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1528
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1529
	/* Set the Tx Interrupt Delay register */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1530
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1531
	ew32(TIDV, adapter->tx_int_delay);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1532
	if (hw->mac_type >= e1000_82540)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1533
		ew32(TADV, adapter->tx_abs_int_delay);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1534
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1535
	/* Program the Transmit Control Register */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1536
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1537
	tctl = er32(TCTL);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1538
	tctl &= ~E1000_TCTL_CT;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1539
	tctl |= E1000_TCTL_PSP | E1000_TCTL_RTLC |
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1540
		(E1000_COLLISION_THRESHOLD << E1000_CT_SHIFT);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1541
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1542
	e1000_config_collision_dist(hw);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1543
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1544
	/* Setup Transmit Descriptor Settings for eop descriptor */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1545
	adapter->txd_cmd = E1000_TXD_CMD_EOP | E1000_TXD_CMD_IFCS;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1546
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1547
	/* only set IDE if we are delaying interrupts using the timers */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1548
	if (adapter->tx_int_delay)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1549
		adapter->txd_cmd |= E1000_TXD_CMD_IDE;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1550
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1551
	if (hw->mac_type < e1000_82543)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1552
		adapter->txd_cmd |= E1000_TXD_CMD_RPS;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1553
	else
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1554
		adapter->txd_cmd |= E1000_TXD_CMD_RS;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1555
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1556
	/* Cache if we're 82544 running in PCI-X because we'll
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1557
	 * need this to apply a workaround later in the send path. */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1558
	if (hw->mac_type == e1000_82544 &&
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1559
	    hw->bus_type == e1000_bus_type_pcix)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1560
		adapter->pcix_82544 = 1;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1561
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1562
	ew32(TCTL, tctl);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1563
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1564
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1565
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1566
/**
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1567
 * e1000_setup_rx_resources - allocate Rx resources (Descriptors)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1568
 * @adapter: board private structure
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1569
 * @rxdr:    rx descriptor ring (for a specific queue) to setup
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1570
 *
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1571
 * Returns 0 on success, negative on failure
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1572
 **/
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1573
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1574
static int e1000_setup_rx_resources(struct e1000_adapter *adapter,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1575
				    struct e1000_rx_ring *rxdr)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1576
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1577
	struct pci_dev *pdev = adapter->pdev;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1578
	int size, desc_len;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1579
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1580
	size = sizeof(struct e1000_buffer) * rxdr->count;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1581
	rxdr->buffer_info = vmalloc(size);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1582
	if (!rxdr->buffer_info) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1583
		e_err("Unable to allocate memory for the Rx descriptor ring\n");
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1584
		return -ENOMEM;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1585
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1586
	memset(rxdr->buffer_info, 0, size);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1587
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1588
	desc_len = sizeof(struct e1000_rx_desc);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1589
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1590
	/* Round up to nearest 4K */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1591
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1592
	rxdr->size = rxdr->count * desc_len;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1593
	rxdr->size = ALIGN(rxdr->size, 4096);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1594
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1595
	rxdr->desc = dma_alloc_coherent(&pdev->dev, rxdr->size, &rxdr->dma,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1596
					GFP_KERNEL);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1597
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1598
	if (!rxdr->desc) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1599
		e_err("Unable to allocate memory for the Rx descriptor ring\n");
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1600
setup_rx_desc_die:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1601
		vfree(rxdr->buffer_info);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1602
		return -ENOMEM;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1603
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1604
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1605
	/* Fix for errata 23, can't cross 64kB boundary */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1606
	if (!e1000_check_64k_bound(adapter, rxdr->desc, rxdr->size)) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1607
		void *olddesc = rxdr->desc;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1608
		dma_addr_t olddma = rxdr->dma;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1609
		e_err("rxdr align check failed: %u bytes at %p\n",
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1610
		      rxdr->size, rxdr->desc);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1611
		/* Try again, without freeing the previous */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1612
		rxdr->desc = dma_alloc_coherent(&pdev->dev, rxdr->size,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1613
						&rxdr->dma, GFP_KERNEL);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1614
		/* Failed allocation, critical failure */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1615
		if (!rxdr->desc) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1616
			dma_free_coherent(&pdev->dev, rxdr->size, olddesc,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1617
					  olddma);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1618
			e_err("Unable to allocate memory for the Rx descriptor "
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1619
			      "ring\n");
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1620
			goto setup_rx_desc_die;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1621
		}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1622
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1623
		if (!e1000_check_64k_bound(adapter, rxdr->desc, rxdr->size)) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1624
			/* give up */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1625
			dma_free_coherent(&pdev->dev, rxdr->size, rxdr->desc,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1626
					  rxdr->dma);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1627
			dma_free_coherent(&pdev->dev, rxdr->size, olddesc,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1628
					  olddma);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1629
			e_err("Unable to allocate aligned memory for the Rx "
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1630
			      "descriptor ring\n");
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1631
			goto setup_rx_desc_die;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1632
		} else {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1633
			/* Free old allocation, new allocation was successful */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1634
			dma_free_coherent(&pdev->dev, rxdr->size, olddesc,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1635
					  olddma);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1636
		}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1637
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1638
	memset(rxdr->desc, 0, rxdr->size);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1639
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1640
	rxdr->next_to_clean = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1641
	rxdr->next_to_use = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1642
	rxdr->rx_skb_top = NULL;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1643
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1644
	return 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1645
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1646
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1647
/**
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1648
 * e1000_setup_all_rx_resources - wrapper to allocate Rx resources
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1649
 * 				  (Descriptors) for all queues
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1650
 * @adapter: board private structure
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1651
 *
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1652
 * Return 0 on success, negative on failure
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1653
 **/
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1654
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1655
int e1000_setup_all_rx_resources(struct e1000_adapter *adapter)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1656
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1657
	int i, err = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1658
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1659
	for (i = 0; i < adapter->num_rx_queues; i++) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1660
		err = e1000_setup_rx_resources(adapter, &adapter->rx_ring[i]);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1661
		if (err) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1662
			e_err("Allocation for Rx Queue %u failed\n", i);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1663
			for (i-- ; i >= 0; i--)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1664
				e1000_free_rx_resources(adapter,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1665
							&adapter->rx_ring[i]);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1666
			break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1667
		}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1668
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1669
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1670
	return err;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1671
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1672
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1673
/**
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1674
 * e1000_setup_rctl - configure the receive control registers
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1675
 * @adapter: Board private structure
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1676
 **/
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1677
static void e1000_setup_rctl(struct e1000_adapter *adapter)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1678
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1679
	struct e1000_hw *hw = &adapter->hw;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1680
	u32 rctl;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1681
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1682
	rctl = er32(RCTL);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1683
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1684
	rctl &= ~(3 << E1000_RCTL_MO_SHIFT);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1685
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1686
	rctl |= E1000_RCTL_EN | E1000_RCTL_BAM |
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1687
		E1000_RCTL_LBM_NO | E1000_RCTL_RDMTS_HALF |
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1688
		(hw->mc_filter_type << E1000_RCTL_MO_SHIFT);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1689
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1690
	if (hw->tbi_compatibility_on == 1)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1691
		rctl |= E1000_RCTL_SBP;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1692
	else
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1693
		rctl &= ~E1000_RCTL_SBP;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1694
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1695
	if (adapter->netdev->mtu <= ETH_DATA_LEN)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1696
		rctl &= ~E1000_RCTL_LPE;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1697
	else
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1698
		rctl |= E1000_RCTL_LPE;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1699
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1700
	/* Setup buffer sizes */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1701
	rctl &= ~E1000_RCTL_SZ_4096;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1702
	rctl |= E1000_RCTL_BSEX;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1703
	switch (adapter->rx_buffer_len) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1704
		case E1000_RXBUFFER_2048:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1705
		default:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1706
			rctl |= E1000_RCTL_SZ_2048;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1707
			rctl &= ~E1000_RCTL_BSEX;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1708
			break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1709
		case E1000_RXBUFFER_4096:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1710
			rctl |= E1000_RCTL_SZ_4096;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1711
			break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1712
		case E1000_RXBUFFER_8192:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1713
			rctl |= E1000_RCTL_SZ_8192;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1714
			break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1715
		case E1000_RXBUFFER_16384:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1716
			rctl |= E1000_RCTL_SZ_16384;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1717
			break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1718
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1719
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1720
	ew32(RCTL, rctl);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1721
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1722
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1723
/**
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1724
 * e1000_configure_rx - Configure 8254x Receive Unit after Reset
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1725
 * @adapter: board private structure
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1726
 *
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1727
 * Configure the Rx unit of the MAC after a reset.
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1728
 **/
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1729
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1730
static void e1000_configure_rx(struct e1000_adapter *adapter)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1731
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1732
	u64 rdba;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1733
	struct e1000_hw *hw = &adapter->hw;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1734
	u32 rdlen, rctl, rxcsum;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1735
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1736
	if (adapter->netdev->mtu > ETH_DATA_LEN) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1737
		rdlen = adapter->rx_ring[0].count *
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1738
		        sizeof(struct e1000_rx_desc);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1739
		adapter->clean_rx = e1000_clean_jumbo_rx_irq;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1740
		adapter->alloc_rx_buf = e1000_alloc_jumbo_rx_buffers;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1741
	} else {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1742
		rdlen = adapter->rx_ring[0].count *
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1743
		        sizeof(struct e1000_rx_desc);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1744
		adapter->clean_rx = e1000_clean_rx_irq;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1745
		adapter->alloc_rx_buf = e1000_alloc_rx_buffers;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1746
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1747
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1748
	/* disable receives while setting up the descriptors */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1749
	rctl = er32(RCTL);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1750
	ew32(RCTL, rctl & ~E1000_RCTL_EN);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1751
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1752
	/* set the Receive Delay Timer Register */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1753
	ew32(RDTR, adapter->rx_int_delay);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1754
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1755
	if (hw->mac_type >= e1000_82540) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1756
		ew32(RADV, adapter->rx_abs_int_delay);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1757
		if (adapter->itr_setting != 0)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1758
			ew32(ITR, 1000000000 / (adapter->itr * 256));
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1759
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1760
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1761
	/* Setup the HW Rx Head and Tail Descriptor Pointers and
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1762
	 * the Base and Length of the Rx Descriptor Ring */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1763
	switch (adapter->num_rx_queues) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1764
	case 1:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1765
	default:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1766
		rdba = adapter->rx_ring[0].dma;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1767
		ew32(RDLEN, rdlen);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1768
		ew32(RDBAH, (rdba >> 32));
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1769
		ew32(RDBAL, (rdba & 0x00000000ffffffffULL));
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1770
		ew32(RDT, 0);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1771
		ew32(RDH, 0);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1772
		adapter->rx_ring[0].rdh = ((hw->mac_type >= e1000_82543) ? E1000_RDH : E1000_82542_RDH);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1773
		adapter->rx_ring[0].rdt = ((hw->mac_type >= e1000_82543) ? E1000_RDT : E1000_82542_RDT);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1774
		break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1775
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1776
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1777
	/* Enable 82543 Receive Checksum Offload for TCP and UDP */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1778
	if (hw->mac_type >= e1000_82543) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1779
		rxcsum = er32(RXCSUM);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1780
		if (adapter->rx_csum)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1781
			rxcsum |= E1000_RXCSUM_TUOFL;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1782
		else
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1783
			/* don't need to clear IPPCSE as it defaults to 0 */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1784
			rxcsum &= ~E1000_RXCSUM_TUOFL;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1785
		ew32(RXCSUM, rxcsum);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1786
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1787
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1788
	/* Enable Receives */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1789
	ew32(RCTL, rctl);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1790
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1791
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1792
/**
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1793
 * e1000_free_tx_resources - Free Tx Resources per Queue
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1794
 * @adapter: board private structure
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1795
 * @tx_ring: Tx descriptor ring for a specific queue
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1796
 *
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1797
 * Free all transmit software resources
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1798
 **/
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1799
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1800
static void e1000_free_tx_resources(struct e1000_adapter *adapter,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1801
				    struct e1000_tx_ring *tx_ring)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1802
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1803
	struct pci_dev *pdev = adapter->pdev;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1804
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1805
	e1000_clean_tx_ring(adapter, tx_ring);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1806
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1807
	vfree(tx_ring->buffer_info);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1808
	tx_ring->buffer_info = NULL;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1809
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1810
	dma_free_coherent(&pdev->dev, tx_ring->size, tx_ring->desc,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1811
			  tx_ring->dma);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1812
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1813
	tx_ring->desc = NULL;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1814
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1815
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1816
/**
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1817
 * e1000_free_all_tx_resources - Free Tx Resources for All Queues
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1818
 * @adapter: board private structure
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1819
 *
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1820
 * Free all transmit software resources
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1821
 **/
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1822
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1823
void e1000_free_all_tx_resources(struct e1000_adapter *adapter)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1824
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1825
	int i;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1826
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1827
	for (i = 0; i < adapter->num_tx_queues; i++)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1828
		e1000_free_tx_resources(adapter, &adapter->tx_ring[i]);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1829
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1830
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1831
static void e1000_unmap_and_free_tx_resource(struct e1000_adapter *adapter,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1832
					     struct e1000_buffer *buffer_info)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1833
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1834
	if (buffer_info->dma) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1835
		if (buffer_info->mapped_as_page)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1836
			dma_unmap_page(&adapter->pdev->dev, buffer_info->dma,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1837
				       buffer_info->length, DMA_TO_DEVICE);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1838
		else
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1839
			dma_unmap_single(&adapter->pdev->dev, buffer_info->dma,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1840
					 buffer_info->length,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1841
					 DMA_TO_DEVICE);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1842
		buffer_info->dma = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1843
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1844
	if (buffer_info->skb) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1845
		dev_kfree_skb_any(buffer_info->skb);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1846
		buffer_info->skb = NULL;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1847
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1848
	buffer_info->time_stamp = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1849
	/* buffer_info must be completely set up in the transmit path */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1850
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1851
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1852
/**
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1853
 * e1000_clean_tx_ring - Free Tx Buffers
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1854
 * @adapter: board private structure
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1855
 * @tx_ring: ring to be cleaned
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1856
 **/
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1857
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1858
static void e1000_clean_tx_ring(struct e1000_adapter *adapter,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1859
				struct e1000_tx_ring *tx_ring)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1860
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1861
	struct e1000_hw *hw = &adapter->hw;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1862
	struct e1000_buffer *buffer_info;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1863
	unsigned long size;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1864
	unsigned int i;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1865
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1866
	/* Free all the Tx ring sk_buffs */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1867
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1868
	for (i = 0; i < tx_ring->count; i++) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1869
		buffer_info = &tx_ring->buffer_info[i];
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1870
		e1000_unmap_and_free_tx_resource(adapter, buffer_info);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1871
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1872
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1873
	size = sizeof(struct e1000_buffer) * tx_ring->count;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1874
	memset(tx_ring->buffer_info, 0, size);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1875
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1876
	/* Zero out the descriptor ring */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1877
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1878
	memset(tx_ring->desc, 0, tx_ring->size);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1879
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1880
	tx_ring->next_to_use = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1881
	tx_ring->next_to_clean = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1882
	tx_ring->last_tx_tso = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1883
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1884
	writel(0, hw->hw_addr + tx_ring->tdh);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1885
	writel(0, hw->hw_addr + tx_ring->tdt);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1886
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1887
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1888
/**
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1889
 * e1000_clean_all_tx_rings - Free Tx Buffers for all queues
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1890
 * @adapter: board private structure
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1891
 **/
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1892
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1893
static void e1000_clean_all_tx_rings(struct e1000_adapter *adapter)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1894
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1895
	int i;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1896
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1897
	for (i = 0; i < adapter->num_tx_queues; i++)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1898
		e1000_clean_tx_ring(adapter, &adapter->tx_ring[i]);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1899
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1900
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1901
/**
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1902
 * e1000_free_rx_resources - Free Rx Resources
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1903
 * @adapter: board private structure
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1904
 * @rx_ring: ring to clean the resources from
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1905
 *
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1906
 * Free all receive software resources
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1907
 **/
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1908
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1909
static void e1000_free_rx_resources(struct e1000_adapter *adapter,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1910
				    struct e1000_rx_ring *rx_ring)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1911
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1912
	struct pci_dev *pdev = adapter->pdev;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1913
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1914
	e1000_clean_rx_ring(adapter, rx_ring);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1915
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1916
	vfree(rx_ring->buffer_info);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1917
	rx_ring->buffer_info = NULL;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1918
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1919
	dma_free_coherent(&pdev->dev, rx_ring->size, rx_ring->desc,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1920
			  rx_ring->dma);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1921
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1922
	rx_ring->desc = NULL;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1923
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1924
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1925
/**
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1926
 * e1000_free_all_rx_resources - Free Rx Resources for All Queues
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1927
 * @adapter: board private structure
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1928
 *
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1929
 * Free all receive software resources
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1930
 **/
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1931
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1932
void e1000_free_all_rx_resources(struct e1000_adapter *adapter)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1933
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1934
	int i;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1935
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1936
	for (i = 0; i < adapter->num_rx_queues; i++)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1937
		e1000_free_rx_resources(adapter, &adapter->rx_ring[i]);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1938
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1939
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1940
/**
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1941
 * e1000_clean_rx_ring - Free Rx Buffers per Queue
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1942
 * @adapter: board private structure
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1943
 * @rx_ring: ring to free buffers from
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1944
 **/
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1945
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1946
static void e1000_clean_rx_ring(struct e1000_adapter *adapter,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1947
				struct e1000_rx_ring *rx_ring)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1948
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1949
	struct e1000_hw *hw = &adapter->hw;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1950
	struct e1000_buffer *buffer_info;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1951
	struct pci_dev *pdev = adapter->pdev;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1952
	unsigned long size;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1953
	unsigned int i;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1954
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1955
	/* Free all the Rx ring sk_buffs */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1956
	for (i = 0; i < rx_ring->count; i++) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1957
		buffer_info = &rx_ring->buffer_info[i];
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1958
		if (buffer_info->dma &&
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1959
		    adapter->clean_rx == e1000_clean_rx_irq) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1960
			dma_unmap_single(&pdev->dev, buffer_info->dma,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1961
			                 buffer_info->length,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1962
					 DMA_FROM_DEVICE);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1963
		} else if (buffer_info->dma &&
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1964
		           adapter->clean_rx == e1000_clean_jumbo_rx_irq) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1965
			dma_unmap_page(&pdev->dev, buffer_info->dma,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1966
				       buffer_info->length,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1967
				       DMA_FROM_DEVICE);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1968
		}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1969
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1970
		buffer_info->dma = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1971
		if (buffer_info->page) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1972
			put_page(buffer_info->page);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1973
			buffer_info->page = NULL;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1974
		}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1975
		if (buffer_info->skb) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1976
			dev_kfree_skb(buffer_info->skb);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1977
			buffer_info->skb = NULL;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1978
		}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1979
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1980
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1981
	/* there also may be some cached data from a chained receive */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1982
	if (rx_ring->rx_skb_top) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1983
		dev_kfree_skb(rx_ring->rx_skb_top);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1984
		rx_ring->rx_skb_top = NULL;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1985
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1986
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1987
	size = sizeof(struct e1000_buffer) * rx_ring->count;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1988
	memset(rx_ring->buffer_info, 0, size);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1989
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1990
	/* Zero out the descriptor ring */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1991
	memset(rx_ring->desc, 0, rx_ring->size);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1992
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1993
	rx_ring->next_to_clean = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1994
	rx_ring->next_to_use = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1995
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1996
	writel(0, hw->hw_addr + rx_ring->rdh);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1997
	writel(0, hw->hw_addr + rx_ring->rdt);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1998
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  1999
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2000
/**
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2001
 * e1000_clean_all_rx_rings - Free Rx Buffers for all queues
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2002
 * @adapter: board private structure
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2003
 **/
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2004
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2005
static void e1000_clean_all_rx_rings(struct e1000_adapter *adapter)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2006
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2007
	int i;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2008
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2009
	for (i = 0; i < adapter->num_rx_queues; i++)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2010
		e1000_clean_rx_ring(adapter, &adapter->rx_ring[i]);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2011
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2012
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2013
/* The 82542 2.0 (revision 2) needs to have the receive unit in reset
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2014
 * and memory write and invalidate disabled for certain operations
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2015
 */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2016
static void e1000_enter_82542_rst(struct e1000_adapter *adapter)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2017
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2018
	struct e1000_hw *hw = &adapter->hw;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2019
	struct net_device *netdev = adapter->netdev;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2020
	u32 rctl;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2021
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2022
	e1000_pci_clear_mwi(hw);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2023
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2024
	rctl = er32(RCTL);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2025
	rctl |= E1000_RCTL_RST;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2026
	ew32(RCTL, rctl);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2027
	E1000_WRITE_FLUSH();
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2028
	mdelay(5);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2029
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2030
	if (netif_running(netdev))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2031
		e1000_clean_all_rx_rings(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2032
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2033
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2034
static void e1000_leave_82542_rst(struct e1000_adapter *adapter)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2035
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2036
	struct e1000_hw *hw = &adapter->hw;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2037
	struct net_device *netdev = adapter->netdev;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2038
	u32 rctl;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2039
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2040
	rctl = er32(RCTL);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2041
	rctl &= ~E1000_RCTL_RST;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2042
	ew32(RCTL, rctl);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2043
	E1000_WRITE_FLUSH();
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2044
	mdelay(5);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2045
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2046
	if (hw->pci_cmd_word & PCI_COMMAND_INVALIDATE)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2047
		e1000_pci_set_mwi(hw);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2048
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2049
	if (netif_running(netdev)) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2050
		/* No need to loop, because 82542 supports only 1 queue */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2051
		struct e1000_rx_ring *ring = &adapter->rx_ring[0];
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2052
		e1000_configure_rx(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2053
		adapter->alloc_rx_buf(adapter, ring, E1000_DESC_UNUSED(ring));
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2054
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2055
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2056
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2057
/**
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2058
 * e1000_set_mac - Change the Ethernet Address of the NIC
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2059
 * @netdev: network interface device structure
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2060
 * @p: pointer to an address structure
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2061
 *
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2062
 * Returns 0 on success, negative on failure
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2063
 **/
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2064
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2065
static int e1000_set_mac(struct net_device *netdev, void *p)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2066
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2067
	struct e1000_adapter *adapter = netdev_priv(netdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2068
	struct e1000_hw *hw = &adapter->hw;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2069
	struct sockaddr *addr = p;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2070
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2071
	if (!is_valid_ether_addr(addr->sa_data))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2072
		return -EADDRNOTAVAIL;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2073
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2074
	/* 82542 2.0 needs to be in reset to write receive address registers */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2075
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2076
	if (hw->mac_type == e1000_82542_rev2_0)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2077
		e1000_enter_82542_rst(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2078
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2079
	memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2080
	memcpy(hw->mac_addr, addr->sa_data, netdev->addr_len);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2081
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2082
	e1000_rar_set(hw, hw->mac_addr, 0);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2083
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2084
	if (hw->mac_type == e1000_82542_rev2_0)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2085
		e1000_leave_82542_rst(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2086
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2087
	return 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2088
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2089
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2090
/**
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2091
 * e1000_set_rx_mode - Secondary Unicast, Multicast and Promiscuous mode set
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2092
 * @netdev: network interface device structure
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2093
 *
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2094
 * The set_rx_mode entry point is called whenever the unicast or multicast
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2095
 * address lists or the network interface flags are updated. This routine is
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2096
 * responsible for configuring the hardware for proper unicast, multicast,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2097
 * promiscuous mode, and all-multi behavior.
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2098
 **/
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2099
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2100
static void e1000_set_rx_mode(struct net_device *netdev)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2101
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2102
	struct e1000_adapter *adapter = netdev_priv(netdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2103
	struct e1000_hw *hw = &adapter->hw;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2104
	struct netdev_hw_addr *ha;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2105
	bool use_uc = false;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2106
	u32 rctl;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2107
	u32 hash_value;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2108
	int i, rar_entries = E1000_RAR_ENTRIES;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2109
	int mta_reg_count = E1000_NUM_MTA_REGISTERS;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2110
	u32 *mcarray = kcalloc(mta_reg_count, sizeof(u32), GFP_ATOMIC);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2111
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2112
	if (!mcarray) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2113
		e_err("memory allocation failed\n");
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2114
		return;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2115
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2116
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2117
	/* Check for Promiscuous and All Multicast modes */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2118
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2119
	rctl = er32(RCTL);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2120
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2121
	if (netdev->flags & IFF_PROMISC) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2122
		rctl |= (E1000_RCTL_UPE | E1000_RCTL_MPE);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2123
		rctl &= ~E1000_RCTL_VFE;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2124
	} else {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2125
		if (netdev->flags & IFF_ALLMULTI)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2126
			rctl |= E1000_RCTL_MPE;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2127
		else
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2128
			rctl &= ~E1000_RCTL_MPE;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2129
		/* Enable VLAN filter if there is a VLAN */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2130
		if (adapter->vlgrp)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2131
			rctl |= E1000_RCTL_VFE;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2132
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2133
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2134
	if (netdev_uc_count(netdev) > rar_entries - 1) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2135
		rctl |= E1000_RCTL_UPE;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2136
	} else if (!(netdev->flags & IFF_PROMISC)) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2137
		rctl &= ~E1000_RCTL_UPE;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2138
		use_uc = true;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2139
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2140
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2141
	ew32(RCTL, rctl);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2142
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2143
	/* 82542 2.0 needs to be in reset to write receive address registers */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2144
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2145
	if (hw->mac_type == e1000_82542_rev2_0)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2146
		e1000_enter_82542_rst(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2147
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2148
	/* load the first 14 addresses into the exact filters 1-14. Unicast
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2149
	 * addresses take precedence to avoid disabling unicast filtering
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2150
	 * when possible.
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2151
	 *
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2152
	 * RAR 0 is used for the station MAC adddress
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2153
	 * if there are not 14 addresses, go ahead and clear the filters
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2154
	 */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2155
	i = 1;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2156
	if (use_uc)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2157
		netdev_for_each_uc_addr(ha, netdev) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2158
			if (i == rar_entries)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2159
				break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2160
			e1000_rar_set(hw, ha->addr, i++);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2161
		}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2162
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2163
	netdev_for_each_mc_addr(ha, netdev) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2164
		if (i == rar_entries) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2165
			/* load any remaining addresses into the hash table */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2166
			u32 hash_reg, hash_bit, mta;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2167
			hash_value = e1000_hash_mc_addr(hw, ha->addr);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2168
			hash_reg = (hash_value >> 5) & 0x7F;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2169
			hash_bit = hash_value & 0x1F;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2170
			mta = (1 << hash_bit);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2171
			mcarray[hash_reg] |= mta;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2172
		} else {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2173
			e1000_rar_set(hw, ha->addr, i++);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2174
		}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2175
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2176
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2177
	for (; i < rar_entries; i++) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2178
		E1000_WRITE_REG_ARRAY(hw, RA, i << 1, 0);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2179
		E1000_WRITE_FLUSH();
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2180
		E1000_WRITE_REG_ARRAY(hw, RA, (i << 1) + 1, 0);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2181
		E1000_WRITE_FLUSH();
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2182
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2183
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2184
	/* write the hash table completely, write from bottom to avoid
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2185
	 * both stupid write combining chipsets, and flushing each write */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2186
	for (i = mta_reg_count - 1; i >= 0 ; i--) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2187
		/*
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2188
		 * If we are on an 82544 has an errata where writing odd
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2189
		 * offsets overwrites the previous even offset, but writing
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2190
		 * backwards over the range solves the issue by always
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2191
		 * writing the odd offset first
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2192
		 */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2193
		E1000_WRITE_REG_ARRAY(hw, MTA, i, mcarray[i]);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2194
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2195
	E1000_WRITE_FLUSH();
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2196
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2197
	if (hw->mac_type == e1000_82542_rev2_0)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2198
		e1000_leave_82542_rst(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2199
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2200
	kfree(mcarray);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2201
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2202
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2203
/* Need to wait a few seconds after link up to get diagnostic information from
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2204
 * the phy */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2205
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2206
static void e1000_update_phy_info(unsigned long data)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2207
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2208
	struct e1000_adapter *adapter = (struct e1000_adapter *)data;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2209
	struct e1000_hw *hw = &adapter->hw;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2210
	e1000_phy_get_info(hw, &adapter->phy_info);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2211
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2212
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2213
/**
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2214
 * e1000_82547_tx_fifo_stall - Timer Call-back
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2215
 * @data: pointer to adapter cast into an unsigned long
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2216
 **/
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2217
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2218
static void e1000_82547_tx_fifo_stall(unsigned long data)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2219
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2220
	struct e1000_adapter *adapter = (struct e1000_adapter *)data;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2221
	struct e1000_hw *hw = &adapter->hw;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2222
	struct net_device *netdev = adapter->netdev;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2223
	u32 tctl;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2224
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2225
	if (atomic_read(&adapter->tx_fifo_stall)) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2226
		if ((er32(TDT) == er32(TDH)) &&
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2227
		   (er32(TDFT) == er32(TDFH)) &&
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2228
		   (er32(TDFTS) == er32(TDFHS))) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2229
			tctl = er32(TCTL);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2230
			ew32(TCTL, tctl & ~E1000_TCTL_EN);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2231
			ew32(TDFT, adapter->tx_head_addr);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2232
			ew32(TDFH, adapter->tx_head_addr);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2233
			ew32(TDFTS, adapter->tx_head_addr);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2234
			ew32(TDFHS, adapter->tx_head_addr);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2235
			ew32(TCTL, tctl);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2236
			E1000_WRITE_FLUSH();
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2237
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2238
			adapter->tx_fifo_head = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2239
			atomic_set(&adapter->tx_fifo_stall, 0);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2240
			netif_wake_queue(netdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2241
		} else if (!test_bit(__E1000_DOWN, &adapter->flags)) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2242
			mod_timer(&adapter->tx_fifo_stall_timer, jiffies + 1);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2243
		}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2244
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2245
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2246
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2247
bool e1000_has_link(struct e1000_adapter *adapter)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2248
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2249
	struct e1000_hw *hw = &adapter->hw;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2250
	bool link_active = false;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2251
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2252
	/* get_link_status is set on LSC (link status) interrupt or
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2253
	 * rx sequence error interrupt.  get_link_status will stay
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2254
	 * false until the e1000_check_for_link establishes link
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2255
	 * for copper adapters ONLY
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2256
	 */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2257
	switch (hw->media_type) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2258
	case e1000_media_type_copper:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2259
		if (hw->get_link_status) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2260
			e1000_check_for_link(hw);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2261
			link_active = !hw->get_link_status;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2262
		} else {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2263
			link_active = true;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2264
		}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2265
		break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2266
	case e1000_media_type_fiber:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2267
		e1000_check_for_link(hw);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2268
		link_active = !!(er32(STATUS) & E1000_STATUS_LU);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2269
		break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2270
	case e1000_media_type_internal_serdes:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2271
		e1000_check_for_link(hw);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2272
		link_active = hw->serdes_has_link;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2273
		break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2274
	default:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2275
		break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2276
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2277
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2278
	return link_active;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2279
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2280
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2281
/**
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2282
 * e1000_watchdog - Timer Call-back
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2283
 * @data: pointer to adapter cast into an unsigned long
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2284
 **/
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2285
static void e1000_watchdog(unsigned long data)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2286
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2287
	struct e1000_adapter *adapter = (struct e1000_adapter *)data;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2288
	struct e1000_hw *hw = &adapter->hw;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2289
	struct net_device *netdev = adapter->netdev;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2290
	struct e1000_tx_ring *txdr = adapter->tx_ring;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2291
	u32 link, tctl;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2292
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2293
	link = e1000_has_link(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2294
	if ((netif_carrier_ok(netdev)) && link)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2295
		goto link_up;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2296
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2297
	if (link) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2298
		if (!netif_carrier_ok(netdev)) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2299
			u32 ctrl;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2300
			bool txb2b = true;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2301
			/* update snapshot of PHY registers on LSC */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2302
			e1000_get_speed_and_duplex(hw,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2303
			                           &adapter->link_speed,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2304
			                           &adapter->link_duplex);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2305
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2306
			ctrl = er32(CTRL);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2307
			pr_info("%s NIC Link is Up %d Mbps %s, "
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2308
				"Flow Control: %s\n",
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2309
				netdev->name,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2310
				adapter->link_speed,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2311
				adapter->link_duplex == FULL_DUPLEX ?
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2312
				"Full Duplex" : "Half Duplex",
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2313
				((ctrl & E1000_CTRL_TFCE) && (ctrl &
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2314
				E1000_CTRL_RFCE)) ? "RX/TX" : ((ctrl &
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2315
				E1000_CTRL_RFCE) ? "RX" : ((ctrl &
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2316
				E1000_CTRL_TFCE) ? "TX" : "None")));
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2317
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2318
			/* adjust timeout factor according to speed/duplex */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2319
			adapter->tx_timeout_factor = 1;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2320
			switch (adapter->link_speed) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2321
			case SPEED_10:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2322
				txb2b = false;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2323
				adapter->tx_timeout_factor = 16;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2324
				break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2325
			case SPEED_100:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2326
				txb2b = false;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2327
				/* maybe add some timeout factor ? */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2328
				break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2329
			}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2330
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2331
			/* enable transmits in the hardware */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2332
			tctl = er32(TCTL);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2333
			tctl |= E1000_TCTL_EN;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2334
			ew32(TCTL, tctl);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2335
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2336
			netif_carrier_on(netdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2337
			if (!test_bit(__E1000_DOWN, &adapter->flags))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2338
				mod_timer(&adapter->phy_info_timer,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2339
				          round_jiffies(jiffies + 2 * HZ));
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2340
			adapter->smartspeed = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2341
		}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2342
	} else {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2343
		if (netif_carrier_ok(netdev)) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2344
			adapter->link_speed = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2345
			adapter->link_duplex = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2346
			pr_info("%s NIC Link is Down\n",
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2347
				netdev->name);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2348
			netif_carrier_off(netdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2349
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2350
			if (!test_bit(__E1000_DOWN, &adapter->flags))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2351
				mod_timer(&adapter->phy_info_timer,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2352
				          round_jiffies(jiffies + 2 * HZ));
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2353
		}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2354
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2355
		e1000_smartspeed(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2356
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2357
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2358
link_up:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2359
	e1000_update_stats(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2360
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2361
	hw->tx_packet_delta = adapter->stats.tpt - adapter->tpt_old;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2362
	adapter->tpt_old = adapter->stats.tpt;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2363
	hw->collision_delta = adapter->stats.colc - adapter->colc_old;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2364
	adapter->colc_old = adapter->stats.colc;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2365
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2366
	adapter->gorcl = adapter->stats.gorcl - adapter->gorcl_old;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2367
	adapter->gorcl_old = adapter->stats.gorcl;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2368
	adapter->gotcl = adapter->stats.gotcl - adapter->gotcl_old;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2369
	adapter->gotcl_old = adapter->stats.gotcl;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2370
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2371
	e1000_update_adaptive(hw);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2372
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2373
	if (!netif_carrier_ok(netdev)) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2374
		if (E1000_DESC_UNUSED(txdr) + 1 < txdr->count) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2375
			/* We've lost link, so the controller stops DMA,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2376
			 * but we've got queued Tx work that's never going
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2377
			 * to get done, so reset controller to flush Tx.
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2378
			 * (Do the reset outside of interrupt context). */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2379
			adapter->tx_timeout_count++;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2380
			schedule_work(&adapter->reset_task);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2381
			/* return immediately since reset is imminent */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2382
			return;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2383
		}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2384
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2385
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2386
	/* Simple mode for Interrupt Throttle Rate (ITR) */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2387
	if (hw->mac_type >= e1000_82540 && adapter->itr_setting == 4) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2388
		/*
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2389
		 * Symmetric Tx/Rx gets a reduced ITR=2000;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2390
		 * Total asymmetrical Tx or Rx gets ITR=8000;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2391
		 * everyone else is between 2000-8000.
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2392
		 */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2393
		u32 goc = (adapter->gotcl + adapter->gorcl) / 10000;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2394
		u32 dif = (adapter->gotcl > adapter->gorcl ?
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2395
			    adapter->gotcl - adapter->gorcl :
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2396
			    adapter->gorcl - adapter->gotcl) / 10000;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2397
		u32 itr = goc > 0 ? (dif * 6000 / goc + 2000) : 8000;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2398
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2399
		ew32(ITR, 1000000000 / (itr * 256));
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2400
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2401
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2402
	/* Cause software interrupt to ensure rx ring is cleaned */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2403
	ew32(ICS, E1000_ICS_RXDMT0);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2404
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2405
	/* Force detection of hung controller every watchdog period */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2406
	adapter->detect_tx_hung = true;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2407
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2408
	/* Reset the timer */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2409
	if (!test_bit(__E1000_DOWN, &adapter->flags))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2410
		mod_timer(&adapter->watchdog_timer,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2411
		          round_jiffies(jiffies + 2 * HZ));
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2412
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2413
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2414
enum latency_range {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2415
	lowest_latency = 0,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2416
	low_latency = 1,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2417
	bulk_latency = 2,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2418
	latency_invalid = 255
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2419
};
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2420
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2421
/**
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2422
 * e1000_update_itr - update the dynamic ITR value based on statistics
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2423
 * @adapter: pointer to adapter
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2424
 * @itr_setting: current adapter->itr
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2425
 * @packets: the number of packets during this measurement interval
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2426
 * @bytes: the number of bytes during this measurement interval
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2427
 *
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2428
 *      Stores a new ITR value based on packets and byte
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2429
 *      counts during the last interrupt.  The advantage of per interrupt
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2430
 *      computation is faster updates and more accurate ITR for the current
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2431
 *      traffic pattern.  Constants in this function were computed
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2432
 *      based on theoretical maximum wire speed and thresholds were set based
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2433
 *      on testing data as well as attempting to minimize response time
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2434
 *      while increasing bulk throughput.
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2435
 *      this functionality is controlled by the InterruptThrottleRate module
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2436
 *      parameter (see e1000_param.c)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2437
 **/
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2438
static unsigned int e1000_update_itr(struct e1000_adapter *adapter,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2439
				     u16 itr_setting, int packets, int bytes)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2440
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2441
	unsigned int retval = itr_setting;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2442
	struct e1000_hw *hw = &adapter->hw;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2443
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2444
	if (unlikely(hw->mac_type < e1000_82540))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2445
		goto update_itr_done;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2446
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2447
	if (packets == 0)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2448
		goto update_itr_done;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2449
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2450
	switch (itr_setting) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2451
	case lowest_latency:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2452
		/* jumbo frames get bulk treatment*/
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2453
		if (bytes/packets > 8000)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2454
			retval = bulk_latency;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2455
		else if ((packets < 5) && (bytes > 512))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2456
			retval = low_latency;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2457
		break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2458
	case low_latency:  /* 50 usec aka 20000 ints/s */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2459
		if (bytes > 10000) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2460
			/* jumbo frames need bulk latency setting */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2461
			if (bytes/packets > 8000)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2462
				retval = bulk_latency;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2463
			else if ((packets < 10) || ((bytes/packets) > 1200))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2464
				retval = bulk_latency;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2465
			else if ((packets > 35))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2466
				retval = lowest_latency;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2467
		} else if (bytes/packets > 2000)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2468
			retval = bulk_latency;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2469
		else if (packets <= 2 && bytes < 512)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2470
			retval = lowest_latency;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2471
		break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2472
	case bulk_latency: /* 250 usec aka 4000 ints/s */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2473
		if (bytes > 25000) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2474
			if (packets > 35)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2475
				retval = low_latency;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2476
		} else if (bytes < 6000) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2477
			retval = low_latency;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2478
		}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2479
		break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2480
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2481
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2482
update_itr_done:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2483
	return retval;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2484
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2485
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2486
static void e1000_set_itr(struct e1000_adapter *adapter)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2487
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2488
	struct e1000_hw *hw = &adapter->hw;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2489
	u16 current_itr;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2490
	u32 new_itr = adapter->itr;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2491
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2492
	if (unlikely(hw->mac_type < e1000_82540))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2493
		return;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2494
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2495
	/* for non-gigabit speeds, just fix the interrupt rate at 4000 */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2496
	if (unlikely(adapter->link_speed != SPEED_1000)) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2497
		current_itr = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2498
		new_itr = 4000;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2499
		goto set_itr_now;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2500
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2501
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2502
	adapter->tx_itr = e1000_update_itr(adapter,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2503
	                            adapter->tx_itr,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2504
	                            adapter->total_tx_packets,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2505
	                            adapter->total_tx_bytes);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2506
	/* conservative mode (itr 3) eliminates the lowest_latency setting */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2507
	if (adapter->itr_setting == 3 && adapter->tx_itr == lowest_latency)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2508
		adapter->tx_itr = low_latency;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2509
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2510
	adapter->rx_itr = e1000_update_itr(adapter,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2511
	                            adapter->rx_itr,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2512
	                            adapter->total_rx_packets,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2513
	                            adapter->total_rx_bytes);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2514
	/* conservative mode (itr 3) eliminates the lowest_latency setting */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2515
	if (adapter->itr_setting == 3 && adapter->rx_itr == lowest_latency)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2516
		adapter->rx_itr = low_latency;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2517
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2518
	current_itr = max(adapter->rx_itr, adapter->tx_itr);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2519
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2520
	switch (current_itr) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2521
	/* counts and packets in update_itr are dependent on these numbers */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2522
	case lowest_latency:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2523
		new_itr = 70000;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2524
		break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2525
	case low_latency:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2526
		new_itr = 20000; /* aka hwitr = ~200 */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2527
		break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2528
	case bulk_latency:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2529
		new_itr = 4000;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2530
		break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2531
	default:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2532
		break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2533
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2534
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2535
set_itr_now:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2536
	if (new_itr != adapter->itr) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2537
		/* this attempts to bias the interrupt rate towards Bulk
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2538
		 * by adding intermediate steps when interrupt rate is
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2539
		 * increasing */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2540
		new_itr = new_itr > adapter->itr ?
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2541
		             min(adapter->itr + (new_itr >> 2), new_itr) :
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2542
		             new_itr;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2543
		adapter->itr = new_itr;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2544
		ew32(ITR, 1000000000 / (new_itr * 256));
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2545
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2546
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2547
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2548
#define E1000_TX_FLAGS_CSUM		0x00000001
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2549
#define E1000_TX_FLAGS_VLAN		0x00000002
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2550
#define E1000_TX_FLAGS_TSO		0x00000004
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2551
#define E1000_TX_FLAGS_IPV4		0x00000008
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2552
#define E1000_TX_FLAGS_VLAN_MASK	0xffff0000
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2553
#define E1000_TX_FLAGS_VLAN_SHIFT	16
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2554
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2555
static int e1000_tso(struct e1000_adapter *adapter,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2556
		     struct e1000_tx_ring *tx_ring, struct sk_buff *skb)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2557
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2558
	struct e1000_context_desc *context_desc;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2559
	struct e1000_buffer *buffer_info;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2560
	unsigned int i;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2561
	u32 cmd_length = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2562
	u16 ipcse = 0, tucse, mss;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2563
	u8 ipcss, ipcso, tucss, tucso, hdr_len;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2564
	int err;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2565
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2566
	if (skb_is_gso(skb)) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2567
		if (skb_header_cloned(skb)) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2568
			err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2569
			if (err)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2570
				return err;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2571
		}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2572
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2573
		hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2574
		mss = skb_shinfo(skb)->gso_size;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2575
		if (skb->protocol == htons(ETH_P_IP)) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2576
			struct iphdr *iph = ip_hdr(skb);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2577
			iph->tot_len = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2578
			iph->check = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2579
			tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2580
								 iph->daddr, 0,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2581
								 IPPROTO_TCP,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2582
								 0);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2583
			cmd_length = E1000_TXD_CMD_IP;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2584
			ipcse = skb_transport_offset(skb) - 1;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2585
		} else if (skb->protocol == htons(ETH_P_IPV6)) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2586
			ipv6_hdr(skb)->payload_len = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2587
			tcp_hdr(skb)->check =
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2588
				~csum_ipv6_magic(&ipv6_hdr(skb)->saddr,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2589
						 &ipv6_hdr(skb)->daddr,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2590
						 0, IPPROTO_TCP, 0);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2591
			ipcse = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2592
		}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2593
		ipcss = skb_network_offset(skb);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2594
		ipcso = (void *)&(ip_hdr(skb)->check) - (void *)skb->data;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2595
		tucss = skb_transport_offset(skb);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2596
		tucso = (void *)&(tcp_hdr(skb)->check) - (void *)skb->data;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2597
		tucse = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2598
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2599
		cmd_length |= (E1000_TXD_CMD_DEXT | E1000_TXD_CMD_TSE |
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2600
			       E1000_TXD_CMD_TCP | (skb->len - (hdr_len)));
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2601
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2602
		i = tx_ring->next_to_use;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2603
		context_desc = E1000_CONTEXT_DESC(*tx_ring, i);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2604
		buffer_info = &tx_ring->buffer_info[i];
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2605
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2606
		context_desc->lower_setup.ip_fields.ipcss  = ipcss;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2607
		context_desc->lower_setup.ip_fields.ipcso  = ipcso;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2608
		context_desc->lower_setup.ip_fields.ipcse  = cpu_to_le16(ipcse);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2609
		context_desc->upper_setup.tcp_fields.tucss = tucss;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2610
		context_desc->upper_setup.tcp_fields.tucso = tucso;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2611
		context_desc->upper_setup.tcp_fields.tucse = cpu_to_le16(tucse);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2612
		context_desc->tcp_seg_setup.fields.mss     = cpu_to_le16(mss);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2613
		context_desc->tcp_seg_setup.fields.hdr_len = hdr_len;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2614
		context_desc->cmd_and_length = cpu_to_le32(cmd_length);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2615
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2616
		buffer_info->time_stamp = jiffies;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2617
		buffer_info->next_to_watch = i;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2618
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2619
		if (++i == tx_ring->count) i = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2620
		tx_ring->next_to_use = i;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2621
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2622
		return true;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2623
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2624
	return false;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2625
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2626
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2627
static bool e1000_tx_csum(struct e1000_adapter *adapter,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2628
			  struct e1000_tx_ring *tx_ring, struct sk_buff *skb)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2629
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2630
	struct e1000_context_desc *context_desc;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2631
	struct e1000_buffer *buffer_info;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2632
	unsigned int i;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2633
	u8 css;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2634
	u32 cmd_len = E1000_TXD_CMD_DEXT;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2635
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2636
	if (skb->ip_summed != CHECKSUM_PARTIAL)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2637
		return false;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2638
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2639
	switch (skb->protocol) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2640
	case cpu_to_be16(ETH_P_IP):
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2641
		if (ip_hdr(skb)->protocol == IPPROTO_TCP)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2642
			cmd_len |= E1000_TXD_CMD_TCP;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2643
		break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2644
	case cpu_to_be16(ETH_P_IPV6):
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2645
		/* XXX not handling all IPV6 headers */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2646
		if (ipv6_hdr(skb)->nexthdr == IPPROTO_TCP)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2647
			cmd_len |= E1000_TXD_CMD_TCP;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2648
		break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2649
	default:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2650
		if (unlikely(net_ratelimit()))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2651
			e_warn("checksum_partial proto=%x!\n", skb->protocol);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2652
		break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2653
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2654
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2655
	css = skb_transport_offset(skb);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2656
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2657
	i = tx_ring->next_to_use;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2658
	buffer_info = &tx_ring->buffer_info[i];
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2659
	context_desc = E1000_CONTEXT_DESC(*tx_ring, i);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2660
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2661
	context_desc->lower_setup.ip_config = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2662
	context_desc->upper_setup.tcp_fields.tucss = css;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2663
	context_desc->upper_setup.tcp_fields.tucso =
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2664
		css + skb->csum_offset;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2665
	context_desc->upper_setup.tcp_fields.tucse = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2666
	context_desc->tcp_seg_setup.data = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2667
	context_desc->cmd_and_length = cpu_to_le32(cmd_len);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2668
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2669
	buffer_info->time_stamp = jiffies;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2670
	buffer_info->next_to_watch = i;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2671
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2672
	if (unlikely(++i == tx_ring->count)) i = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2673
	tx_ring->next_to_use = i;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2674
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2675
	return true;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2676
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2677
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2678
#define E1000_MAX_TXD_PWR	12
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2679
#define E1000_MAX_DATA_PER_TXD	(1<<E1000_MAX_TXD_PWR)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2680
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2681
static int e1000_tx_map(struct e1000_adapter *adapter,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2682
			struct e1000_tx_ring *tx_ring,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2683
			struct sk_buff *skb, unsigned int first,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2684
			unsigned int max_per_txd, unsigned int nr_frags,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2685
			unsigned int mss)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2686
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2687
	struct e1000_hw *hw = &adapter->hw;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2688
	struct pci_dev *pdev = adapter->pdev;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2689
	struct e1000_buffer *buffer_info;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2690
	unsigned int len = skb_headlen(skb);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2691
	unsigned int offset = 0, size, count = 0, i;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2692
	unsigned int f;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2693
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2694
	i = tx_ring->next_to_use;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2695
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2696
	while (len) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2697
		buffer_info = &tx_ring->buffer_info[i];
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2698
		size = min(len, max_per_txd);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2699
		/* Workaround for Controller erratum --
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2700
		 * descriptor for non-tso packet in a linear SKB that follows a
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2701
		 * tso gets written back prematurely before the data is fully
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2702
		 * DMA'd to the controller */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2703
		if (!skb->data_len && tx_ring->last_tx_tso &&
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2704
		    !skb_is_gso(skb)) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2705
			tx_ring->last_tx_tso = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2706
			size -= 4;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2707
		}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2708
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2709
		/* Workaround for premature desc write-backs
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2710
		 * in TSO mode.  Append 4-byte sentinel desc */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2711
		if (unlikely(mss && !nr_frags && size == len && size > 8))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2712
			size -= 4;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2713
		/* work-around for errata 10 and it applies
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2714
		 * to all controllers in PCI-X mode
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2715
		 * The fix is to make sure that the first descriptor of a
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2716
		 * packet is smaller than 2048 - 16 - 16 (or 2016) bytes
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2717
		 */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2718
		if (unlikely((hw->bus_type == e1000_bus_type_pcix) &&
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2719
		                (size > 2015) && count == 0))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2720
		        size = 2015;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2721
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2722
		/* Workaround for potential 82544 hang in PCI-X.  Avoid
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2723
		 * terminating buffers within evenly-aligned dwords. */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2724
		if (unlikely(adapter->pcix_82544 &&
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2725
		   !((unsigned long)(skb->data + offset + size - 1) & 4) &&
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2726
		   size > 4))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2727
			size -= 4;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2728
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2729
		buffer_info->length = size;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2730
		/* set time_stamp *before* dma to help avoid a possible race */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2731
		buffer_info->time_stamp = jiffies;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2732
		buffer_info->mapped_as_page = false;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2733
		buffer_info->dma = dma_map_single(&pdev->dev,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2734
						  skb->data + offset,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2735
						  size,	DMA_TO_DEVICE);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2736
		if (dma_mapping_error(&pdev->dev, buffer_info->dma))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2737
			goto dma_error;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2738
		buffer_info->next_to_watch = i;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2739
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2740
		len -= size;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2741
		offset += size;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2742
		count++;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2743
		if (len) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2744
			i++;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2745
			if (unlikely(i == tx_ring->count))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2746
				i = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2747
		}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2748
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2749
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2750
	for (f = 0; f < nr_frags; f++) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2751
		struct skb_frag_struct *frag;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2752
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2753
		frag = &skb_shinfo(skb)->frags[f];
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2754
		len = frag->size;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2755
		offset = frag->page_offset;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2756
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2757
		while (len) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2758
			i++;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2759
			if (unlikely(i == tx_ring->count))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2760
				i = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2761
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2762
			buffer_info = &tx_ring->buffer_info[i];
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2763
			size = min(len, max_per_txd);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2764
			/* Workaround for premature desc write-backs
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2765
			 * in TSO mode.  Append 4-byte sentinel desc */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2766
			if (unlikely(mss && f == (nr_frags-1) && size == len && size > 8))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2767
				size -= 4;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2768
			/* Workaround for potential 82544 hang in PCI-X.
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2769
			 * Avoid terminating buffers within evenly-aligned
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2770
			 * dwords. */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2771
			if (unlikely(adapter->pcix_82544 &&
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2772
			    !((unsigned long)(page_to_phys(frag->page) + offset
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2773
			                      + size - 1) & 4) &&
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2774
			    size > 4))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2775
				size -= 4;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2776
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2777
			buffer_info->length = size;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2778
			buffer_info->time_stamp = jiffies;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2779
			buffer_info->mapped_as_page = true;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2780
			buffer_info->dma = dma_map_page(&pdev->dev, frag->page,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2781
							offset,	size,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2782
							DMA_TO_DEVICE);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2783
			if (dma_mapping_error(&pdev->dev, buffer_info->dma))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2784
				goto dma_error;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2785
			buffer_info->next_to_watch = i;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2786
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2787
			len -= size;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2788
			offset += size;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2789
			count++;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2790
		}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2791
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2792
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2793
	tx_ring->buffer_info[i].skb = skb;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2794
	tx_ring->buffer_info[first].next_to_watch = i;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2795
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2796
	return count;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2797
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2798
dma_error:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2799
	dev_err(&pdev->dev, "TX DMA map failed\n");
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2800
	buffer_info->dma = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2801
	if (count)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2802
		count--;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2803
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2804
	while (count--) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2805
		if (i==0)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2806
			i += tx_ring->count;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2807
		i--;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2808
		buffer_info = &tx_ring->buffer_info[i];
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2809
		e1000_unmap_and_free_tx_resource(adapter, buffer_info);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2810
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2811
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2812
	return 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2813
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2814
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2815
static void e1000_tx_queue(struct e1000_adapter *adapter,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2816
			   struct e1000_tx_ring *tx_ring, int tx_flags,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2817
			   int count)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2818
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2819
	struct e1000_hw *hw = &adapter->hw;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2820
	struct e1000_tx_desc *tx_desc = NULL;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2821
	struct e1000_buffer *buffer_info;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2822
	u32 txd_upper = 0, txd_lower = E1000_TXD_CMD_IFCS;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2823
	unsigned int i;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2824
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2825
	if (likely(tx_flags & E1000_TX_FLAGS_TSO)) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2826
		txd_lower |= E1000_TXD_CMD_DEXT | E1000_TXD_DTYP_D |
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2827
		             E1000_TXD_CMD_TSE;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2828
		txd_upper |= E1000_TXD_POPTS_TXSM << 8;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2829
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2830
		if (likely(tx_flags & E1000_TX_FLAGS_IPV4))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2831
			txd_upper |= E1000_TXD_POPTS_IXSM << 8;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2832
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2833
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2834
	if (likely(tx_flags & E1000_TX_FLAGS_CSUM)) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2835
		txd_lower |= E1000_TXD_CMD_DEXT | E1000_TXD_DTYP_D;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2836
		txd_upper |= E1000_TXD_POPTS_TXSM << 8;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2837
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2838
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2839
	if (unlikely(tx_flags & E1000_TX_FLAGS_VLAN)) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2840
		txd_lower |= E1000_TXD_CMD_VLE;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2841
		txd_upper |= (tx_flags & E1000_TX_FLAGS_VLAN_MASK);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2842
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2843
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2844
	i = tx_ring->next_to_use;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2845
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2846
	while (count--) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2847
		buffer_info = &tx_ring->buffer_info[i];
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2848
		tx_desc = E1000_TX_DESC(*tx_ring, i);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2849
		tx_desc->buffer_addr = cpu_to_le64(buffer_info->dma);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2850
		tx_desc->lower.data =
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2851
			cpu_to_le32(txd_lower | buffer_info->length);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2852
		tx_desc->upper.data = cpu_to_le32(txd_upper);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2853
		if (unlikely(++i == tx_ring->count)) i = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2854
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2855
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2856
	tx_desc->lower.data |= cpu_to_le32(adapter->txd_cmd);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2857
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2858
	/* Force memory writes to complete before letting h/w
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2859
	 * know there are new descriptors to fetch.  (Only
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2860
	 * applicable for weak-ordered memory model archs,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2861
	 * such as IA-64). */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2862
	wmb();
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2863
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2864
	tx_ring->next_to_use = i;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2865
	writel(i, hw->hw_addr + tx_ring->tdt);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2866
	/* we need this if more than one processor can write to our tail
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2867
	 * at a time, it syncronizes IO on IA64/Altix systems */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2868
	mmiowb();
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2869
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2870
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2871
/**
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2872
 * 82547 workaround to avoid controller hang in half-duplex environment.
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2873
 * The workaround is to avoid queuing a large packet that would span
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2874
 * the internal Tx FIFO ring boundary by notifying the stack to resend
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2875
 * the packet at a later time.  This gives the Tx FIFO an opportunity to
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2876
 * flush all packets.  When that occurs, we reset the Tx FIFO pointers
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2877
 * to the beginning of the Tx FIFO.
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2878
 **/
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2879
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2880
#define E1000_FIFO_HDR			0x10
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2881
#define E1000_82547_PAD_LEN		0x3E0
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2882
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2883
static int e1000_82547_fifo_workaround(struct e1000_adapter *adapter,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2884
				       struct sk_buff *skb)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2885
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2886
	u32 fifo_space = adapter->tx_fifo_size - adapter->tx_fifo_head;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2887
	u32 skb_fifo_len = skb->len + E1000_FIFO_HDR;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2888
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2889
	skb_fifo_len = ALIGN(skb_fifo_len, E1000_FIFO_HDR);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2890
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2891
	if (adapter->link_duplex != HALF_DUPLEX)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2892
		goto no_fifo_stall_required;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2893
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2894
	if (atomic_read(&adapter->tx_fifo_stall))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2895
		return 1;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2896
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2897
	if (skb_fifo_len >= (E1000_82547_PAD_LEN + fifo_space)) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2898
		atomic_set(&adapter->tx_fifo_stall, 1);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2899
		return 1;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2900
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2901
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2902
no_fifo_stall_required:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2903
	adapter->tx_fifo_head += skb_fifo_len;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2904
	if (adapter->tx_fifo_head >= adapter->tx_fifo_size)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2905
		adapter->tx_fifo_head -= adapter->tx_fifo_size;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2906
	return 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2907
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2908
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2909
static int __e1000_maybe_stop_tx(struct net_device *netdev, int size)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2910
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2911
	struct e1000_adapter *adapter = netdev_priv(netdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2912
	struct e1000_tx_ring *tx_ring = adapter->tx_ring;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2913
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2914
	netif_stop_queue(netdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2915
	/* Herbert's original patch had:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2916
	 *  smp_mb__after_netif_stop_queue();
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2917
	 * but since that doesn't exist yet, just open code it. */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2918
	smp_mb();
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2919
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2920
	/* We need to check again in a case another CPU has just
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2921
	 * made room available. */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2922
	if (likely(E1000_DESC_UNUSED(tx_ring) < size))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2923
		return -EBUSY;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2924
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2925
	/* A reprieve! */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2926
	netif_start_queue(netdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2927
	++adapter->restart_queue;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2928
	return 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2929
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2930
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2931
static int e1000_maybe_stop_tx(struct net_device *netdev,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2932
                               struct e1000_tx_ring *tx_ring, int size)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2933
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2934
	if (likely(E1000_DESC_UNUSED(tx_ring) >= size))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2935
		return 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2936
	return __e1000_maybe_stop_tx(netdev, size);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2937
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2938
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2939
#define TXD_USE_COUNT(S, X) (((S) >> (X)) + 1 )
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2940
static netdev_tx_t e1000_xmit_frame(struct sk_buff *skb,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2941
				    struct net_device *netdev)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2942
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2943
	struct e1000_adapter *adapter = netdev_priv(netdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2944
	struct e1000_hw *hw = &adapter->hw;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2945
	struct e1000_tx_ring *tx_ring;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2946
	unsigned int first, max_per_txd = E1000_MAX_DATA_PER_TXD;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2947
	unsigned int max_txd_pwr = E1000_MAX_TXD_PWR;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2948
	unsigned int tx_flags = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2949
	unsigned int len = skb_headlen(skb);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2950
	unsigned int nr_frags;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2951
	unsigned int mss;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2952
	int count = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2953
	int tso;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2954
	unsigned int f;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2955
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2956
	/* This goes back to the question of how to logically map a tx queue
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2957
	 * to a flow.  Right now, performance is impacted slightly negatively
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2958
	 * if using multiple tx queues.  If the stack breaks away from a
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2959
	 * single qdisc implementation, we can look at this again. */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2960
	tx_ring = adapter->tx_ring;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2961
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2962
	if (unlikely(skb->len <= 0)) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2963
		dev_kfree_skb_any(skb);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2964
		return NETDEV_TX_OK;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2965
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2966
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2967
	mss = skb_shinfo(skb)->gso_size;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2968
	/* The controller does a simple calculation to
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2969
	 * make sure there is enough room in the FIFO before
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2970
	 * initiating the DMA for each buffer.  The calc is:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2971
	 * 4 = ceil(buffer len/mss).  To make sure we don't
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2972
	 * overrun the FIFO, adjust the max buffer len if mss
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2973
	 * drops. */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2974
	if (mss) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2975
		u8 hdr_len;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2976
		max_per_txd = min(mss << 2, max_per_txd);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2977
		max_txd_pwr = fls(max_per_txd) - 1;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2978
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2979
		hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2980
		if (skb->data_len && hdr_len == len) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2981
			switch (hw->mac_type) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2982
				unsigned int pull_size;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2983
			case e1000_82544:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2984
				/* Make sure we have room to chop off 4 bytes,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2985
				 * and that the end alignment will work out to
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2986
				 * this hardware's requirements
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2987
				 * NOTE: this is a TSO only workaround
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2988
				 * if end byte alignment not correct move us
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2989
				 * into the next dword */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2990
				if ((unsigned long)(skb_tail_pointer(skb) - 1) & 4)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2991
					break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2992
				/* fall through */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2993
				pull_size = min((unsigned int)4, skb->data_len);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2994
				if (!__pskb_pull_tail(skb, pull_size)) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2995
					e_err("__pskb_pull_tail failed.\n");
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2996
					dev_kfree_skb_any(skb);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2997
					return NETDEV_TX_OK;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2998
				}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  2999
				len = skb_headlen(skb);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3000
				break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3001
			default:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3002
				/* do nothing */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3003
				break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3004
			}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3005
		}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3006
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3007
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3008
	/* reserve a descriptor for the offload context */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3009
	if ((mss) || (skb->ip_summed == CHECKSUM_PARTIAL))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3010
		count++;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3011
	count++;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3012
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3013
	/* Controller Erratum workaround */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3014
	if (!skb->data_len && tx_ring->last_tx_tso && !skb_is_gso(skb))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3015
		count++;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3016
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3017
	count += TXD_USE_COUNT(len, max_txd_pwr);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3018
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3019
	if (adapter->pcix_82544)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3020
		count++;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3021
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3022
	/* work-around for errata 10 and it applies to all controllers
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3023
	 * in PCI-X mode, so add one more descriptor to the count
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3024
	 */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3025
	if (unlikely((hw->bus_type == e1000_bus_type_pcix) &&
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3026
			(len > 2015)))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3027
		count++;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3028
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3029
	nr_frags = skb_shinfo(skb)->nr_frags;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3030
	for (f = 0; f < nr_frags; f++)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3031
		count += TXD_USE_COUNT(skb_shinfo(skb)->frags[f].size,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3032
				       max_txd_pwr);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3033
	if (adapter->pcix_82544)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3034
		count += nr_frags;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3035
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3036
	/* need: count + 2 desc gap to keep tail from touching
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3037
	 * head, otherwise try next time */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3038
	if (unlikely(e1000_maybe_stop_tx(netdev, tx_ring, count + 2)))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3039
		return NETDEV_TX_BUSY;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3040
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3041
	if (unlikely(hw->mac_type == e1000_82547)) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3042
		if (unlikely(e1000_82547_fifo_workaround(adapter, skb))) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3043
			netif_stop_queue(netdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3044
			if (!test_bit(__E1000_DOWN, &adapter->flags))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3045
				mod_timer(&adapter->tx_fifo_stall_timer,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3046
				          jiffies + 1);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3047
			return NETDEV_TX_BUSY;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3048
		}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3049
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3050
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3051
	if (unlikely(adapter->vlgrp && vlan_tx_tag_present(skb))) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3052
		tx_flags |= E1000_TX_FLAGS_VLAN;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3053
		tx_flags |= (vlan_tx_tag_get(skb) << E1000_TX_FLAGS_VLAN_SHIFT);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3054
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3055
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3056
	first = tx_ring->next_to_use;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3057
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3058
	tso = e1000_tso(adapter, tx_ring, skb);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3059
	if (tso < 0) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3060
		dev_kfree_skb_any(skb);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3061
		return NETDEV_TX_OK;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3062
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3063
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3064
	if (likely(tso)) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3065
		if (likely(hw->mac_type != e1000_82544))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3066
			tx_ring->last_tx_tso = 1;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3067
		tx_flags |= E1000_TX_FLAGS_TSO;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3068
	} else if (likely(e1000_tx_csum(adapter, tx_ring, skb)))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3069
		tx_flags |= E1000_TX_FLAGS_CSUM;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3070
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3071
	if (likely(skb->protocol == htons(ETH_P_IP)))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3072
		tx_flags |= E1000_TX_FLAGS_IPV4;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3073
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3074
	count = e1000_tx_map(adapter, tx_ring, skb, first, max_per_txd,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3075
	                     nr_frags, mss);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3076
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3077
	if (count) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3078
		e1000_tx_queue(adapter, tx_ring, tx_flags, count);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3079
		/* Make sure there is space in the ring for the next send. */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3080
		e1000_maybe_stop_tx(netdev, tx_ring, MAX_SKB_FRAGS + 2);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3081
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3082
	} else {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3083
		dev_kfree_skb_any(skb);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3084
		tx_ring->buffer_info[first].time_stamp = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3085
		tx_ring->next_to_use = first;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3086
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3087
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3088
	return NETDEV_TX_OK;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3089
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3090
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3091
/**
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3092
 * e1000_tx_timeout - Respond to a Tx Hang
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3093
 * @netdev: network interface device structure
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3094
 **/
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3095
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3096
static void e1000_tx_timeout(struct net_device *netdev)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3097
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3098
	struct e1000_adapter *adapter = netdev_priv(netdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3099
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3100
	/* Do the reset outside of interrupt context */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3101
	adapter->tx_timeout_count++;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3102
	schedule_work(&adapter->reset_task);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3103
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3104
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3105
static void e1000_reset_task(struct work_struct *work)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3106
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3107
	struct e1000_adapter *adapter =
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3108
		container_of(work, struct e1000_adapter, reset_task);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3109
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3110
	e1000_reinit_locked(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3111
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3112
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3113
/**
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3114
 * e1000_get_stats - Get System Network Statistics
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3115
 * @netdev: network interface device structure
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3116
 *
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3117
 * Returns the address of the device statistics structure.
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3118
 * The statistics are actually updated from the timer callback.
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3119
 **/
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3120
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3121
static struct net_device_stats *e1000_get_stats(struct net_device *netdev)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3122
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3123
	/* only return the current stats */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3124
	return &netdev->stats;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3125
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3126
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3127
/**
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3128
 * e1000_change_mtu - Change the Maximum Transfer Unit
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3129
 * @netdev: network interface device structure
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3130
 * @new_mtu: new value for maximum frame size
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3131
 *
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3132
 * Returns 0 on success, negative on failure
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3133
 **/
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3134
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3135
static int e1000_change_mtu(struct net_device *netdev, int new_mtu)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3136
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3137
	struct e1000_adapter *adapter = netdev_priv(netdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3138
	struct e1000_hw *hw = &adapter->hw;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3139
	int max_frame = new_mtu + ENET_HEADER_SIZE + ETHERNET_FCS_SIZE;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3140
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3141
	if ((max_frame < MINIMUM_ETHERNET_FRAME_SIZE) ||
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3142
	    (max_frame > MAX_JUMBO_FRAME_SIZE)) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3143
		e_err("Invalid MTU setting\n");
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3144
		return -EINVAL;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3145
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3146
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3147
	/* Adapter-specific max frame size limits. */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3148
	switch (hw->mac_type) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3149
	case e1000_undefined ... e1000_82542_rev2_1:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3150
		if (max_frame > (ETH_FRAME_LEN + ETH_FCS_LEN)) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3151
			e_err("Jumbo Frames not supported.\n");
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3152
			return -EINVAL;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3153
		}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3154
		break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3155
	default:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3156
		/* Capable of supporting up to MAX_JUMBO_FRAME_SIZE limit. */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3157
		break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3158
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3159
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3160
	while (test_and_set_bit(__E1000_RESETTING, &adapter->flags))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3161
		msleep(1);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3162
	/* e1000_down has a dependency on max_frame_size */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3163
	hw->max_frame_size = max_frame;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3164
	if (netif_running(netdev))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3165
		e1000_down(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3166
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3167
	/* NOTE: netdev_alloc_skb reserves 16 bytes, and typically NET_IP_ALIGN
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3168
	 * means we reserve 2 more, this pushes us to allocate from the next
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3169
	 * larger slab size.
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3170
	 * i.e. RXBUFFER_2048 --> size-4096 slab
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3171
	 *  however with the new *_jumbo_rx* routines, jumbo receives will use
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3172
	 *  fragmented skbs */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3173
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3174
	if (max_frame <= E1000_RXBUFFER_2048)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3175
		adapter->rx_buffer_len = E1000_RXBUFFER_2048;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3176
	else
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3177
#if (PAGE_SIZE >= E1000_RXBUFFER_16384)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3178
		adapter->rx_buffer_len = E1000_RXBUFFER_16384;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3179
#elif (PAGE_SIZE >= E1000_RXBUFFER_4096)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3180
		adapter->rx_buffer_len = PAGE_SIZE;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3181
#endif
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3182
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3183
	/* adjust allocation if LPE protects us, and we aren't using SBP */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3184
	if (!hw->tbi_compatibility_on &&
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3185
	    ((max_frame == (ETH_FRAME_LEN + ETH_FCS_LEN)) ||
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3186
	     (max_frame == MAXIMUM_ETHERNET_VLAN_SIZE)))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3187
		adapter->rx_buffer_len = MAXIMUM_ETHERNET_VLAN_SIZE;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3188
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3189
	pr_info("%s changing MTU from %d to %d\n",
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3190
		netdev->name, netdev->mtu, new_mtu);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3191
	netdev->mtu = new_mtu;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3192
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3193
	if (netif_running(netdev))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3194
		e1000_up(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3195
	else
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3196
		e1000_reset(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3197
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3198
	clear_bit(__E1000_RESETTING, &adapter->flags);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3199
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3200
	return 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3201
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3202
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3203
/**
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3204
 * e1000_update_stats - Update the board statistics counters
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3205
 * @adapter: board private structure
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3206
 **/
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3207
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3208
void e1000_update_stats(struct e1000_adapter *adapter)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3209
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3210
	struct net_device *netdev = adapter->netdev;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3211
	struct e1000_hw *hw = &adapter->hw;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3212
	struct pci_dev *pdev = adapter->pdev;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3213
	unsigned long flags;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3214
	u16 phy_tmp;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3215
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3216
#define PHY_IDLE_ERROR_COUNT_MASK 0x00FF
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3217
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3218
	/*
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3219
	 * Prevent stats update while adapter is being reset, or if the pci
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3220
	 * connection is down.
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3221
	 */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3222
	if (adapter->link_speed == 0)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3223
		return;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3224
	if (pci_channel_offline(pdev))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3225
		return;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3226
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3227
	spin_lock_irqsave(&adapter->stats_lock, flags);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3228
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3229
	/* these counters are modified from e1000_tbi_adjust_stats,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3230
	 * called from the interrupt context, so they must only
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3231
	 * be written while holding adapter->stats_lock
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3232
	 */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3233
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3234
	adapter->stats.crcerrs += er32(CRCERRS);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3235
	adapter->stats.gprc += er32(GPRC);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3236
	adapter->stats.gorcl += er32(GORCL);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3237
	adapter->stats.gorch += er32(GORCH);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3238
	adapter->stats.bprc += er32(BPRC);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3239
	adapter->stats.mprc += er32(MPRC);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3240
	adapter->stats.roc += er32(ROC);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3241
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3242
	adapter->stats.prc64 += er32(PRC64);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3243
	adapter->stats.prc127 += er32(PRC127);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3244
	adapter->stats.prc255 += er32(PRC255);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3245
	adapter->stats.prc511 += er32(PRC511);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3246
	adapter->stats.prc1023 += er32(PRC1023);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3247
	adapter->stats.prc1522 += er32(PRC1522);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3248
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3249
	adapter->stats.symerrs += er32(SYMERRS);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3250
	adapter->stats.mpc += er32(MPC);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3251
	adapter->stats.scc += er32(SCC);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3252
	adapter->stats.ecol += er32(ECOL);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3253
	adapter->stats.mcc += er32(MCC);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3254
	adapter->stats.latecol += er32(LATECOL);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3255
	adapter->stats.dc += er32(DC);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3256
	adapter->stats.sec += er32(SEC);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3257
	adapter->stats.rlec += er32(RLEC);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3258
	adapter->stats.xonrxc += er32(XONRXC);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3259
	adapter->stats.xontxc += er32(XONTXC);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3260
	adapter->stats.xoffrxc += er32(XOFFRXC);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3261
	adapter->stats.xofftxc += er32(XOFFTXC);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3262
	adapter->stats.fcruc += er32(FCRUC);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3263
	adapter->stats.gptc += er32(GPTC);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3264
	adapter->stats.gotcl += er32(GOTCL);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3265
	adapter->stats.gotch += er32(GOTCH);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3266
	adapter->stats.rnbc += er32(RNBC);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3267
	adapter->stats.ruc += er32(RUC);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3268
	adapter->stats.rfc += er32(RFC);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3269
	adapter->stats.rjc += er32(RJC);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3270
	adapter->stats.torl += er32(TORL);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3271
	adapter->stats.torh += er32(TORH);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3272
	adapter->stats.totl += er32(TOTL);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3273
	adapter->stats.toth += er32(TOTH);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3274
	adapter->stats.tpr += er32(TPR);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3275
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3276
	adapter->stats.ptc64 += er32(PTC64);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3277
	adapter->stats.ptc127 += er32(PTC127);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3278
	adapter->stats.ptc255 += er32(PTC255);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3279
	adapter->stats.ptc511 += er32(PTC511);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3280
	adapter->stats.ptc1023 += er32(PTC1023);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3281
	adapter->stats.ptc1522 += er32(PTC1522);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3282
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3283
	adapter->stats.mptc += er32(MPTC);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3284
	adapter->stats.bptc += er32(BPTC);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3285
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3286
	/* used for adaptive IFS */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3287
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3288
	hw->tx_packet_delta = er32(TPT);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3289
	adapter->stats.tpt += hw->tx_packet_delta;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3290
	hw->collision_delta = er32(COLC);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3291
	adapter->stats.colc += hw->collision_delta;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3292
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3293
	if (hw->mac_type >= e1000_82543) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3294
		adapter->stats.algnerrc += er32(ALGNERRC);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3295
		adapter->stats.rxerrc += er32(RXERRC);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3296
		adapter->stats.tncrs += er32(TNCRS);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3297
		adapter->stats.cexterr += er32(CEXTERR);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3298
		adapter->stats.tsctc += er32(TSCTC);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3299
		adapter->stats.tsctfc += er32(TSCTFC);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3300
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3301
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3302
	/* Fill out the OS statistics structure */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3303
	netdev->stats.multicast = adapter->stats.mprc;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3304
	netdev->stats.collisions = adapter->stats.colc;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3305
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3306
	/* Rx Errors */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3307
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3308
	/* RLEC on some newer hardware can be incorrect so build
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3309
	* our own version based on RUC and ROC */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3310
	netdev->stats.rx_errors = adapter->stats.rxerrc +
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3311
		adapter->stats.crcerrs + adapter->stats.algnerrc +
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3312
		adapter->stats.ruc + adapter->stats.roc +
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3313
		adapter->stats.cexterr;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3314
	adapter->stats.rlerrc = adapter->stats.ruc + adapter->stats.roc;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3315
	netdev->stats.rx_length_errors = adapter->stats.rlerrc;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3316
	netdev->stats.rx_crc_errors = adapter->stats.crcerrs;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3317
	netdev->stats.rx_frame_errors = adapter->stats.algnerrc;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3318
	netdev->stats.rx_missed_errors = adapter->stats.mpc;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3319
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3320
	/* Tx Errors */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3321
	adapter->stats.txerrc = adapter->stats.ecol + adapter->stats.latecol;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3322
	netdev->stats.tx_errors = adapter->stats.txerrc;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3323
	netdev->stats.tx_aborted_errors = adapter->stats.ecol;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3324
	netdev->stats.tx_window_errors = adapter->stats.latecol;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3325
	netdev->stats.tx_carrier_errors = adapter->stats.tncrs;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3326
	if (hw->bad_tx_carr_stats_fd &&
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3327
	    adapter->link_duplex == FULL_DUPLEX) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3328
		netdev->stats.tx_carrier_errors = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3329
		adapter->stats.tncrs = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3330
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3331
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3332
	/* Tx Dropped needs to be maintained elsewhere */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3333
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3334
	/* Phy Stats */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3335
	if (hw->media_type == e1000_media_type_copper) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3336
		if ((adapter->link_speed == SPEED_1000) &&
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3337
		   (!e1000_read_phy_reg(hw, PHY_1000T_STATUS, &phy_tmp))) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3338
			phy_tmp &= PHY_IDLE_ERROR_COUNT_MASK;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3339
			adapter->phy_stats.idle_errors += phy_tmp;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3340
		}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3341
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3342
		if ((hw->mac_type <= e1000_82546) &&
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3343
		   (hw->phy_type == e1000_phy_m88) &&
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3344
		   !e1000_read_phy_reg(hw, M88E1000_RX_ERR_CNTR, &phy_tmp))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3345
			adapter->phy_stats.receive_errors += phy_tmp;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3346
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3347
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3348
	/* Management Stats */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3349
	if (hw->has_smbus) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3350
		adapter->stats.mgptc += er32(MGTPTC);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3351
		adapter->stats.mgprc += er32(MGTPRC);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3352
		adapter->stats.mgpdc += er32(MGTPDC);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3353
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3354
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3355
	spin_unlock_irqrestore(&adapter->stats_lock, flags);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3356
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3357
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3358
/**
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3359
 * e1000_intr - Interrupt Handler
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3360
 * @irq: interrupt number
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3361
 * @data: pointer to a network interface device structure
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3362
 **/
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3363
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3364
static irqreturn_t e1000_intr(int irq, void *data)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3365
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3366
	struct net_device *netdev = data;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3367
	struct e1000_adapter *adapter = netdev_priv(netdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3368
	struct e1000_hw *hw = &adapter->hw;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3369
	u32 icr = er32(ICR);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3370
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3371
	if (unlikely((!icr) || test_bit(__E1000_DOWN, &adapter->flags)))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3372
		return IRQ_NONE;  /* Not our interrupt */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3373
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3374
	if (unlikely(icr & (E1000_ICR_RXSEQ | E1000_ICR_LSC))) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3375
		hw->get_link_status = 1;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3376
		/* guard against interrupt when we're going down */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3377
		if (!test_bit(__E1000_DOWN, &adapter->flags))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3378
			mod_timer(&adapter->watchdog_timer, jiffies + 1);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3379
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3380
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3381
	/* disable interrupts, without the synchronize_irq bit */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3382
	ew32(IMC, ~0);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3383
	E1000_WRITE_FLUSH();
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3384
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3385
	if (likely(napi_schedule_prep(&adapter->napi))) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3386
		adapter->total_tx_bytes = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3387
		adapter->total_tx_packets = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3388
		adapter->total_rx_bytes = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3389
		adapter->total_rx_packets = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3390
		__napi_schedule(&adapter->napi);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3391
	} else {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3392
		/* this really should not happen! if it does it is basically a
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3393
		 * bug, but not a hard error, so enable ints and continue */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3394
		if (!test_bit(__E1000_DOWN, &adapter->flags))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3395
			e1000_irq_enable(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3396
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3397
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3398
	return IRQ_HANDLED;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3399
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3400
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3401
/**
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3402
 * e1000_clean - NAPI Rx polling callback
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3403
 * @adapter: board private structure
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3404
 **/
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3405
static int e1000_clean(struct napi_struct *napi, int budget)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3406
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3407
	struct e1000_adapter *adapter = container_of(napi, struct e1000_adapter, napi);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3408
	int tx_clean_complete = 0, work_done = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3409
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3410
	tx_clean_complete = e1000_clean_tx_irq(adapter, &adapter->tx_ring[0]);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3411
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3412
	adapter->clean_rx(adapter, &adapter->rx_ring[0], &work_done, budget);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3413
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3414
	if (!tx_clean_complete)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3415
		work_done = budget;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3416
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3417
	/* If budget not fully consumed, exit the polling mode */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3418
	if (work_done < budget) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3419
		if (likely(adapter->itr_setting & 3))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3420
			e1000_set_itr(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3421
		napi_complete(napi);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3422
		if (!test_bit(__E1000_DOWN, &adapter->flags))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3423
			e1000_irq_enable(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3424
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3425
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3426
	return work_done;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3427
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3428
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3429
/**
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3430
 * e1000_clean_tx_irq - Reclaim resources after transmit completes
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3431
 * @adapter: board private structure
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3432
 **/
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3433
static bool e1000_clean_tx_irq(struct e1000_adapter *adapter,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3434
			       struct e1000_tx_ring *tx_ring)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3435
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3436
	struct e1000_hw *hw = &adapter->hw;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3437
	struct net_device *netdev = adapter->netdev;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3438
	struct e1000_tx_desc *tx_desc, *eop_desc;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3439
	struct e1000_buffer *buffer_info;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3440
	unsigned int i, eop;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3441
	unsigned int count = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3442
	unsigned int total_tx_bytes=0, total_tx_packets=0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3443
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3444
	i = tx_ring->next_to_clean;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3445
	eop = tx_ring->buffer_info[i].next_to_watch;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3446
	eop_desc = E1000_TX_DESC(*tx_ring, eop);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3447
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3448
	while ((eop_desc->upper.data & cpu_to_le32(E1000_TXD_STAT_DD)) &&
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3449
	       (count < tx_ring->count)) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3450
		bool cleaned = false;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3451
		rmb();	/* read buffer_info after eop_desc */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3452
		for ( ; !cleaned; count++) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3453
			tx_desc = E1000_TX_DESC(*tx_ring, i);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3454
			buffer_info = &tx_ring->buffer_info[i];
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3455
			cleaned = (i == eop);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3456
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3457
			if (cleaned) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3458
				struct sk_buff *skb = buffer_info->skb;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3459
				unsigned int segs, bytecount;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3460
				segs = skb_shinfo(skb)->gso_segs ?: 1;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3461
				/* multiply data chunks by size of headers */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3462
				bytecount = ((segs - 1) * skb_headlen(skb)) +
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3463
				            skb->len;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3464
				total_tx_packets += segs;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3465
				total_tx_bytes += bytecount;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3466
			}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3467
			e1000_unmap_and_free_tx_resource(adapter, buffer_info);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3468
			tx_desc->upper.data = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3469
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3470
			if (unlikely(++i == tx_ring->count)) i = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3471
		}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3472
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3473
		eop = tx_ring->buffer_info[i].next_to_watch;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3474
		eop_desc = E1000_TX_DESC(*tx_ring, eop);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3475
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3476
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3477
	tx_ring->next_to_clean = i;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3478
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3479
#define TX_WAKE_THRESHOLD 32
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3480
	if (unlikely(count && netif_carrier_ok(netdev) &&
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3481
		     E1000_DESC_UNUSED(tx_ring) >= TX_WAKE_THRESHOLD)) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3482
		/* Make sure that anybody stopping the queue after this
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3483
		 * sees the new next_to_clean.
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3484
		 */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3485
		smp_mb();
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3486
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3487
		if (netif_queue_stopped(netdev) &&
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3488
		    !(test_bit(__E1000_DOWN, &adapter->flags))) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3489
			netif_wake_queue(netdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3490
			++adapter->restart_queue;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3491
		}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3492
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3493
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3494
	if (adapter->detect_tx_hung) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3495
		/* Detect a transmit hang in hardware, this serializes the
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3496
		 * check with the clearing of time_stamp and movement of i */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3497
		adapter->detect_tx_hung = false;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3498
		if (tx_ring->buffer_info[eop].time_stamp &&
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3499
		    time_after(jiffies, tx_ring->buffer_info[eop].time_stamp +
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3500
		               (adapter->tx_timeout_factor * HZ)) &&
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3501
		    !(er32(STATUS) & E1000_STATUS_TXOFF)) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3502
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3503
			/* detected Tx unit hang */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3504
			e_err("Detected Tx Unit Hang\n"
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3505
			      "  Tx Queue             <%lu>\n"
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3506
			      "  TDH                  <%x>\n"
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3507
			      "  TDT                  <%x>\n"
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3508
			      "  next_to_use          <%x>\n"
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3509
			      "  next_to_clean        <%x>\n"
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3510
			      "buffer_info[next_to_clean]\n"
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3511
			      "  time_stamp           <%lx>\n"
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3512
			      "  next_to_watch        <%x>\n"
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3513
			      "  jiffies              <%lx>\n"
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3514
			      "  next_to_watch.status <%x>\n",
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3515
				(unsigned long)((tx_ring - adapter->tx_ring) /
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3516
					sizeof(struct e1000_tx_ring)),
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3517
				readl(hw->hw_addr + tx_ring->tdh),
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3518
				readl(hw->hw_addr + tx_ring->tdt),
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3519
				tx_ring->next_to_use,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3520
				tx_ring->next_to_clean,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3521
				tx_ring->buffer_info[eop].time_stamp,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3522
				eop,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3523
				jiffies,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3524
				eop_desc->upper.fields.status);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3525
			netif_stop_queue(netdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3526
		}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3527
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3528
	adapter->total_tx_bytes += total_tx_bytes;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3529
	adapter->total_tx_packets += total_tx_packets;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3530
	netdev->stats.tx_bytes += total_tx_bytes;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3531
	netdev->stats.tx_packets += total_tx_packets;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3532
	return (count < tx_ring->count);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3533
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3534
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3535
/**
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3536
 * e1000_rx_checksum - Receive Checksum Offload for 82543
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3537
 * @adapter:     board private structure
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3538
 * @status_err:  receive descriptor status and error fields
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3539
 * @csum:        receive descriptor csum field
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3540
 * @sk_buff:     socket buffer with received data
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3541
 **/
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3542
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3543
static void e1000_rx_checksum(struct e1000_adapter *adapter, u32 status_err,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3544
			      u32 csum, struct sk_buff *skb)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3545
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3546
	struct e1000_hw *hw = &adapter->hw;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3547
	u16 status = (u16)status_err;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3548
	u8 errors = (u8)(status_err >> 24);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3549
	skb->ip_summed = CHECKSUM_NONE;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3550
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3551
	/* 82543 or newer only */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3552
	if (unlikely(hw->mac_type < e1000_82543)) return;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3553
	/* Ignore Checksum bit is set */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3554
	if (unlikely(status & E1000_RXD_STAT_IXSM)) return;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3555
	/* TCP/UDP checksum error bit is set */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3556
	if (unlikely(errors & E1000_RXD_ERR_TCPE)) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3557
		/* let the stack verify checksum errors */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3558
		adapter->hw_csum_err++;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3559
		return;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3560
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3561
	/* TCP/UDP Checksum has not been calculated */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3562
	if (!(status & E1000_RXD_STAT_TCPCS))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3563
		return;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3564
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3565
	/* It must be a TCP or UDP packet with a valid checksum */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3566
	if (likely(status & E1000_RXD_STAT_TCPCS)) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3567
		/* TCP checksum is good */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3568
		skb->ip_summed = CHECKSUM_UNNECESSARY;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3569
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3570
	adapter->hw_csum_good++;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3571
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3572
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3573
/**
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3574
 * e1000_consume_page - helper function
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3575
 **/
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3576
static void e1000_consume_page(struct e1000_buffer *bi, struct sk_buff *skb,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3577
                               u16 length)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3578
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3579
	bi->page = NULL;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3580
	skb->len += length;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3581
	skb->data_len += length;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3582
	skb->truesize += length;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3583
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3584
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3585
/**
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3586
 * e1000_receive_skb - helper function to handle rx indications
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3587
 * @adapter: board private structure
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3588
 * @status: descriptor status field as written by hardware
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3589
 * @vlan: descriptor vlan field as written by hardware (no le/be conversion)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3590
 * @skb: pointer to sk_buff to be indicated to stack
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3591
 */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3592
static void e1000_receive_skb(struct e1000_adapter *adapter, u8 status,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3593
			      __le16 vlan, struct sk_buff *skb)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3594
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3595
	if (unlikely(adapter->vlgrp && (status & E1000_RXD_STAT_VP))) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3596
		vlan_hwaccel_receive_skb(skb, adapter->vlgrp,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3597
		                         le16_to_cpu(vlan) &
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3598
		                         E1000_RXD_SPC_VLAN_MASK);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3599
	} else {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3600
		netif_receive_skb(skb);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3601
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3602
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3603
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3604
/**
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3605
 * e1000_clean_jumbo_rx_irq - Send received data up the network stack; legacy
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3606
 * @adapter: board private structure
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3607
 * @rx_ring: ring to clean
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3608
 * @work_done: amount of napi work completed this call
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3609
 * @work_to_do: max amount of work allowed for this call to do
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3610
 *
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3611
 * the return value indicates whether actual cleaning was done, there
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3612
 * is no guarantee that everything was cleaned
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3613
 */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3614
static bool e1000_clean_jumbo_rx_irq(struct e1000_adapter *adapter,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3615
				     struct e1000_rx_ring *rx_ring,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3616
				     int *work_done, int work_to_do)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3617
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3618
	struct e1000_hw *hw = &adapter->hw;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3619
	struct net_device *netdev = adapter->netdev;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3620
	struct pci_dev *pdev = adapter->pdev;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3621
	struct e1000_rx_desc *rx_desc, *next_rxd;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3622
	struct e1000_buffer *buffer_info, *next_buffer;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3623
	unsigned long irq_flags;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3624
	u32 length;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3625
	unsigned int i;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3626
	int cleaned_count = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3627
	bool cleaned = false;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3628
	unsigned int total_rx_bytes=0, total_rx_packets=0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3629
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3630
	i = rx_ring->next_to_clean;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3631
	rx_desc = E1000_RX_DESC(*rx_ring, i);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3632
	buffer_info = &rx_ring->buffer_info[i];
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3633
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3634
	while (rx_desc->status & E1000_RXD_STAT_DD) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3635
		struct sk_buff *skb;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3636
		u8 status;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3637
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3638
		if (*work_done >= work_to_do)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3639
			break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3640
		(*work_done)++;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3641
		rmb(); /* read descriptor and rx_buffer_info after status DD */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3642
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3643
		status = rx_desc->status;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3644
		skb = buffer_info->skb;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3645
		buffer_info->skb = NULL;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3646
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3647
		if (++i == rx_ring->count) i = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3648
		next_rxd = E1000_RX_DESC(*rx_ring, i);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3649
		prefetch(next_rxd);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3650
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3651
		next_buffer = &rx_ring->buffer_info[i];
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3652
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3653
		cleaned = true;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3654
		cleaned_count++;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3655
		dma_unmap_page(&pdev->dev, buffer_info->dma,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3656
			       buffer_info->length, DMA_FROM_DEVICE);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3657
		buffer_info->dma = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3658
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3659
		length = le16_to_cpu(rx_desc->length);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3660
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3661
		/* errors is only valid for DD + EOP descriptors */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3662
		if (unlikely((status & E1000_RXD_STAT_EOP) &&
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3663
		    (rx_desc->errors & E1000_RXD_ERR_FRAME_ERR_MASK))) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3664
			u8 last_byte = *(skb->data + length - 1);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3665
			if (TBI_ACCEPT(hw, status, rx_desc->errors, length,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3666
				       last_byte)) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3667
				spin_lock_irqsave(&adapter->stats_lock,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3668
				                  irq_flags);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3669
				e1000_tbi_adjust_stats(hw, &adapter->stats,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3670
				                       length, skb->data);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3671
				spin_unlock_irqrestore(&adapter->stats_lock,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3672
				                       irq_flags);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3673
				length--;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3674
			} else {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3675
				/* recycle both page and skb */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3676
				buffer_info->skb = skb;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3677
				/* an error means any chain goes out the window
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3678
				 * too */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3679
				if (rx_ring->rx_skb_top)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3680
					dev_kfree_skb(rx_ring->rx_skb_top);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3681
				rx_ring->rx_skb_top = NULL;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3682
				goto next_desc;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3683
			}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3684
		}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3685
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3686
#define rxtop rx_ring->rx_skb_top
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3687
		if (!(status & E1000_RXD_STAT_EOP)) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3688
			/* this descriptor is only the beginning (or middle) */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3689
			if (!rxtop) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3690
				/* this is the beginning of a chain */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3691
				rxtop = skb;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3692
				skb_fill_page_desc(rxtop, 0, buffer_info->page,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3693
				                   0, length);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3694
			} else {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3695
				/* this is the middle of a chain */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3696
				skb_fill_page_desc(rxtop,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3697
				    skb_shinfo(rxtop)->nr_frags,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3698
				    buffer_info->page, 0, length);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3699
				/* re-use the skb, only consumed the page */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3700
				buffer_info->skb = skb;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3701
			}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3702
			e1000_consume_page(buffer_info, rxtop, length);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3703
			goto next_desc;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3704
		} else {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3705
			if (rxtop) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3706
				/* end of the chain */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3707
				skb_fill_page_desc(rxtop,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3708
				    skb_shinfo(rxtop)->nr_frags,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3709
				    buffer_info->page, 0, length);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3710
				/* re-use the current skb, we only consumed the
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3711
				 * page */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3712
				buffer_info->skb = skb;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3713
				skb = rxtop;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3714
				rxtop = NULL;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3715
				e1000_consume_page(buffer_info, skb, length);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3716
			} else {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3717
				/* no chain, got EOP, this buf is the packet
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3718
				 * copybreak to save the put_page/alloc_page */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3719
				if (length <= copybreak &&
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3720
				    skb_tailroom(skb) >= length) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3721
					u8 *vaddr;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3722
					vaddr = kmap_atomic(buffer_info->page,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3723
					                    KM_SKB_DATA_SOFTIRQ);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3724
					memcpy(skb_tail_pointer(skb), vaddr, length);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3725
					kunmap_atomic(vaddr,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3726
					              KM_SKB_DATA_SOFTIRQ);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3727
					/* re-use the page, so don't erase
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3728
					 * buffer_info->page */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3729
					skb_put(skb, length);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3730
				} else {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3731
					skb_fill_page_desc(skb, 0,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3732
					                   buffer_info->page, 0,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3733
				                           length);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3734
					e1000_consume_page(buffer_info, skb,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3735
					                   length);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3736
				}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3737
			}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3738
		}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3739
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3740
		/* Receive Checksum Offload XXX recompute due to CRC strip? */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3741
		e1000_rx_checksum(adapter,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3742
		                  (u32)(status) |
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3743
		                  ((u32)(rx_desc->errors) << 24),
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3744
		                  le16_to_cpu(rx_desc->csum), skb);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3745
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3746
		pskb_trim(skb, skb->len - 4);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3747
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3748
		/* probably a little skewed due to removing CRC */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3749
		total_rx_bytes += skb->len;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3750
		total_rx_packets++;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3751
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3752
		/* eth type trans needs skb->data to point to something */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3753
		if (!pskb_may_pull(skb, ETH_HLEN)) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3754
			e_err("pskb_may_pull failed.\n");
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3755
			dev_kfree_skb(skb);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3756
			goto next_desc;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3757
		}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3758
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3759
		skb->protocol = eth_type_trans(skb, netdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3760
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3761
		e1000_receive_skb(adapter, status, rx_desc->special, skb);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3762
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3763
next_desc:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3764
		rx_desc->status = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3765
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3766
		/* return some buffers to hardware, one at a time is too slow */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3767
		if (unlikely(cleaned_count >= E1000_RX_BUFFER_WRITE)) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3768
			adapter->alloc_rx_buf(adapter, rx_ring, cleaned_count);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3769
			cleaned_count = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3770
		}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3771
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3772
		/* use prefetched values */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3773
		rx_desc = next_rxd;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3774
		buffer_info = next_buffer;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3775
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3776
	rx_ring->next_to_clean = i;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3777
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3778
	cleaned_count = E1000_DESC_UNUSED(rx_ring);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3779
	if (cleaned_count)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3780
		adapter->alloc_rx_buf(adapter, rx_ring, cleaned_count);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3781
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3782
	adapter->total_rx_packets += total_rx_packets;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3783
	adapter->total_rx_bytes += total_rx_bytes;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3784
	netdev->stats.rx_bytes += total_rx_bytes;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3785
	netdev->stats.rx_packets += total_rx_packets;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3786
	return cleaned;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3787
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3788
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3789
/*
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3790
 * this should improve performance for small packets with large amounts
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3791
 * of reassembly being done in the stack
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3792
 */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3793
static void e1000_check_copybreak(struct net_device *netdev,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3794
				 struct e1000_buffer *buffer_info,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3795
				 u32 length, struct sk_buff **skb)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3796
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3797
	struct sk_buff *new_skb;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3798
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3799
	if (length > copybreak)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3800
		return;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3801
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3802
	new_skb = netdev_alloc_skb_ip_align(netdev, length);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3803
	if (!new_skb)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3804
		return;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3805
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3806
	skb_copy_to_linear_data_offset(new_skb, -NET_IP_ALIGN,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3807
				       (*skb)->data - NET_IP_ALIGN,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3808
				       length + NET_IP_ALIGN);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3809
	/* save the skb in buffer_info as good */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3810
	buffer_info->skb = *skb;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3811
	*skb = new_skb;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3812
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3813
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3814
/**
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3815
 * e1000_clean_rx_irq - Send received data up the network stack; legacy
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3816
 * @adapter: board private structure
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3817
 * @rx_ring: ring to clean
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3818
 * @work_done: amount of napi work completed this call
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3819
 * @work_to_do: max amount of work allowed for this call to do
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3820
 */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3821
static bool e1000_clean_rx_irq(struct e1000_adapter *adapter,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3822
			       struct e1000_rx_ring *rx_ring,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3823
			       int *work_done, int work_to_do)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3824
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3825
	struct e1000_hw *hw = &adapter->hw;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3826
	struct net_device *netdev = adapter->netdev;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3827
	struct pci_dev *pdev = adapter->pdev;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3828
	struct e1000_rx_desc *rx_desc, *next_rxd;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3829
	struct e1000_buffer *buffer_info, *next_buffer;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3830
	unsigned long flags;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3831
	u32 length;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3832
	unsigned int i;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3833
	int cleaned_count = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3834
	bool cleaned = false;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3835
	unsigned int total_rx_bytes=0, total_rx_packets=0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3836
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3837
	i = rx_ring->next_to_clean;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3838
	rx_desc = E1000_RX_DESC(*rx_ring, i);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3839
	buffer_info = &rx_ring->buffer_info[i];
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3840
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3841
	while (rx_desc->status & E1000_RXD_STAT_DD) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3842
		struct sk_buff *skb;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3843
		u8 status;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3844
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3845
		if (*work_done >= work_to_do)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3846
			break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3847
		(*work_done)++;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3848
		rmb(); /* read descriptor and rx_buffer_info after status DD */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3849
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3850
		status = rx_desc->status;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3851
		skb = buffer_info->skb;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3852
		buffer_info->skb = NULL;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3853
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3854
		prefetch(skb->data - NET_IP_ALIGN);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3855
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3856
		if (++i == rx_ring->count) i = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3857
		next_rxd = E1000_RX_DESC(*rx_ring, i);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3858
		prefetch(next_rxd);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3859
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3860
		next_buffer = &rx_ring->buffer_info[i];
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3861
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3862
		cleaned = true;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3863
		cleaned_count++;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3864
		dma_unmap_single(&pdev->dev, buffer_info->dma,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3865
				 buffer_info->length, DMA_FROM_DEVICE);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3866
		buffer_info->dma = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3867
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3868
		length = le16_to_cpu(rx_desc->length);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3869
		/* !EOP means multiple descriptors were used to store a single
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3870
		 * packet, if thats the case we need to toss it.  In fact, we
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3871
		 * to toss every packet with the EOP bit clear and the next
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3872
		 * frame that _does_ have the EOP bit set, as it is by
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3873
		 * definition only a frame fragment
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3874
		 */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3875
		if (unlikely(!(status & E1000_RXD_STAT_EOP)))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3876
			adapter->discarding = true;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3877
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3878
		if (adapter->discarding) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3879
			/* All receives must fit into a single buffer */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3880
			e_info("Receive packet consumed multiple buffers\n");
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3881
			/* recycle */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3882
			buffer_info->skb = skb;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3883
			if (status & E1000_RXD_STAT_EOP)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3884
				adapter->discarding = false;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3885
			goto next_desc;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3886
		}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3887
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3888
		if (unlikely(rx_desc->errors & E1000_RXD_ERR_FRAME_ERR_MASK)) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3889
			u8 last_byte = *(skb->data + length - 1);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3890
			if (TBI_ACCEPT(hw, status, rx_desc->errors, length,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3891
				       last_byte)) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3892
				spin_lock_irqsave(&adapter->stats_lock, flags);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3893
				e1000_tbi_adjust_stats(hw, &adapter->stats,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3894
				                       length, skb->data);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3895
				spin_unlock_irqrestore(&adapter->stats_lock,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3896
				                       flags);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3897
				length--;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3898
			} else {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3899
				/* recycle */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3900
				buffer_info->skb = skb;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3901
				goto next_desc;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3902
			}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3903
		}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3904
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3905
		/* adjust length to remove Ethernet CRC, this must be
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3906
		 * done after the TBI_ACCEPT workaround above */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3907
		length -= 4;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3908
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3909
		/* probably a little skewed due to removing CRC */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3910
		total_rx_bytes += length;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3911
		total_rx_packets++;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3912
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3913
		e1000_check_copybreak(netdev, buffer_info, length, &skb);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3914
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3915
		skb_put(skb, length);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3916
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3917
		/* Receive Checksum Offload */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3918
		e1000_rx_checksum(adapter,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3919
				  (u32)(status) |
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3920
				  ((u32)(rx_desc->errors) << 24),
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3921
				  le16_to_cpu(rx_desc->csum), skb);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3922
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3923
		skb->protocol = eth_type_trans(skb, netdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3924
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3925
		e1000_receive_skb(adapter, status, rx_desc->special, skb);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3926
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3927
next_desc:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3928
		rx_desc->status = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3929
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3930
		/* return some buffers to hardware, one at a time is too slow */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3931
		if (unlikely(cleaned_count >= E1000_RX_BUFFER_WRITE)) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3932
			adapter->alloc_rx_buf(adapter, rx_ring, cleaned_count);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3933
			cleaned_count = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3934
		}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3935
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3936
		/* use prefetched values */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3937
		rx_desc = next_rxd;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3938
		buffer_info = next_buffer;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3939
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3940
	rx_ring->next_to_clean = i;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3941
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3942
	cleaned_count = E1000_DESC_UNUSED(rx_ring);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3943
	if (cleaned_count)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3944
		adapter->alloc_rx_buf(adapter, rx_ring, cleaned_count);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3945
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3946
	adapter->total_rx_packets += total_rx_packets;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3947
	adapter->total_rx_bytes += total_rx_bytes;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3948
	netdev->stats.rx_bytes += total_rx_bytes;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3949
	netdev->stats.rx_packets += total_rx_packets;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3950
	return cleaned;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3951
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3952
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3953
/**
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3954
 * e1000_alloc_jumbo_rx_buffers - Replace used jumbo receive buffers
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3955
 * @adapter: address of board private structure
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3956
 * @rx_ring: pointer to receive ring structure
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3957
 * @cleaned_count: number of buffers to allocate this pass
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3958
 **/
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3959
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3960
static void
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3961
e1000_alloc_jumbo_rx_buffers(struct e1000_adapter *adapter,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3962
                             struct e1000_rx_ring *rx_ring, int cleaned_count)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3963
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3964
	struct net_device *netdev = adapter->netdev;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3965
	struct pci_dev *pdev = adapter->pdev;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3966
	struct e1000_rx_desc *rx_desc;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3967
	struct e1000_buffer *buffer_info;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3968
	struct sk_buff *skb;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3969
	unsigned int i;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3970
	unsigned int bufsz = 256 - 16 /*for skb_reserve */ ;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3971
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3972
	i = rx_ring->next_to_use;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3973
	buffer_info = &rx_ring->buffer_info[i];
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3974
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3975
	while (cleaned_count--) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3976
		skb = buffer_info->skb;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3977
		if (skb) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3978
			skb_trim(skb, 0);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3979
			goto check_page;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3980
		}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3981
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3982
		skb = netdev_alloc_skb_ip_align(netdev, bufsz);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3983
		if (unlikely(!skb)) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3984
			/* Better luck next round */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3985
			adapter->alloc_rx_buff_failed++;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3986
			break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3987
		}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3988
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3989
		/* Fix for errata 23, can't cross 64kB boundary */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3990
		if (!e1000_check_64k_bound(adapter, skb->data, bufsz)) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3991
			struct sk_buff *oldskb = skb;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3992
			e_err("skb align check failed: %u bytes at %p\n",
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3993
			      bufsz, skb->data);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3994
			/* Try again, without freeing the previous */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3995
			skb = netdev_alloc_skb_ip_align(netdev, bufsz);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3996
			/* Failed allocation, critical failure */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3997
			if (!skb) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3998
				dev_kfree_skb(oldskb);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  3999
				adapter->alloc_rx_buff_failed++;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4000
				break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4001
			}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4002
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4003
			if (!e1000_check_64k_bound(adapter, skb->data, bufsz)) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4004
				/* give up */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4005
				dev_kfree_skb(skb);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4006
				dev_kfree_skb(oldskb);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4007
				break; /* while (cleaned_count--) */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4008
			}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4009
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4010
			/* Use new allocation */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4011
			dev_kfree_skb(oldskb);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4012
		}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4013
		buffer_info->skb = skb;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4014
		buffer_info->length = adapter->rx_buffer_len;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4015
check_page:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4016
		/* allocate a new page if necessary */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4017
		if (!buffer_info->page) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4018
			buffer_info->page = alloc_page(GFP_ATOMIC);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4019
			if (unlikely(!buffer_info->page)) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4020
				adapter->alloc_rx_buff_failed++;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4021
				break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4022
			}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4023
		}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4024
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4025
		if (!buffer_info->dma) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4026
			buffer_info->dma = dma_map_page(&pdev->dev,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4027
			                                buffer_info->page, 0,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4028
							buffer_info->length,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4029
							DMA_FROM_DEVICE);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4030
			if (dma_mapping_error(&pdev->dev, buffer_info->dma)) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4031
				put_page(buffer_info->page);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4032
				dev_kfree_skb(skb);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4033
				buffer_info->page = NULL;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4034
				buffer_info->skb = NULL;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4035
				buffer_info->dma = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4036
				adapter->alloc_rx_buff_failed++;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4037
				break; /* while !buffer_info->skb */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4038
			}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4039
		}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4040
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4041
		rx_desc = E1000_RX_DESC(*rx_ring, i);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4042
		rx_desc->buffer_addr = cpu_to_le64(buffer_info->dma);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4043
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4044
		if (unlikely(++i == rx_ring->count))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4045
			i = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4046
		buffer_info = &rx_ring->buffer_info[i];
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4047
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4048
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4049
	if (likely(rx_ring->next_to_use != i)) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4050
		rx_ring->next_to_use = i;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4051
		if (unlikely(i-- == 0))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4052
			i = (rx_ring->count - 1);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4053
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4054
		/* Force memory writes to complete before letting h/w
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4055
		 * know there are new descriptors to fetch.  (Only
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4056
		 * applicable for weak-ordered memory model archs,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4057
		 * such as IA-64). */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4058
		wmb();
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4059
		writel(i, adapter->hw.hw_addr + rx_ring->rdt);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4060
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4061
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4062
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4063
/**
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4064
 * e1000_alloc_rx_buffers - Replace used receive buffers; legacy & extended
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4065
 * @adapter: address of board private structure
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4066
 **/
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4067
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4068
static void e1000_alloc_rx_buffers(struct e1000_adapter *adapter,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4069
				   struct e1000_rx_ring *rx_ring,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4070
				   int cleaned_count)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4071
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4072
	struct e1000_hw *hw = &adapter->hw;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4073
	struct net_device *netdev = adapter->netdev;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4074
	struct pci_dev *pdev = adapter->pdev;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4075
	struct e1000_rx_desc *rx_desc;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4076
	struct e1000_buffer *buffer_info;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4077
	struct sk_buff *skb;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4078
	unsigned int i;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4079
	unsigned int bufsz = adapter->rx_buffer_len;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4080
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4081
	i = rx_ring->next_to_use;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4082
	buffer_info = &rx_ring->buffer_info[i];
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4083
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4084
	while (cleaned_count--) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4085
		skb = buffer_info->skb;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4086
		if (skb) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4087
			skb_trim(skb, 0);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4088
			goto map_skb;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4089
		}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4090
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4091
		skb = netdev_alloc_skb_ip_align(netdev, bufsz);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4092
		if (unlikely(!skb)) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4093
			/* Better luck next round */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4094
			adapter->alloc_rx_buff_failed++;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4095
			break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4096
		}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4097
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4098
		/* Fix for errata 23, can't cross 64kB boundary */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4099
		if (!e1000_check_64k_bound(adapter, skb->data, bufsz)) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4100
			struct sk_buff *oldskb = skb;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4101
			e_err("skb align check failed: %u bytes at %p\n",
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4102
			      bufsz, skb->data);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4103
			/* Try again, without freeing the previous */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4104
			skb = netdev_alloc_skb_ip_align(netdev, bufsz);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4105
			/* Failed allocation, critical failure */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4106
			if (!skb) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4107
				dev_kfree_skb(oldskb);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4108
				adapter->alloc_rx_buff_failed++;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4109
				break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4110
			}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4111
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4112
			if (!e1000_check_64k_bound(adapter, skb->data, bufsz)) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4113
				/* give up */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4114
				dev_kfree_skb(skb);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4115
				dev_kfree_skb(oldskb);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4116
				adapter->alloc_rx_buff_failed++;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4117
				break; /* while !buffer_info->skb */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4118
			}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4119
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4120
			/* Use new allocation */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4121
			dev_kfree_skb(oldskb);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4122
		}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4123
		buffer_info->skb = skb;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4124
		buffer_info->length = adapter->rx_buffer_len;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4125
map_skb:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4126
		buffer_info->dma = dma_map_single(&pdev->dev,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4127
						  skb->data,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4128
						  buffer_info->length,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4129
						  DMA_FROM_DEVICE);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4130
		if (dma_mapping_error(&pdev->dev, buffer_info->dma)) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4131
			dev_kfree_skb(skb);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4132
			buffer_info->skb = NULL;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4133
			buffer_info->dma = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4134
			adapter->alloc_rx_buff_failed++;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4135
			break; /* while !buffer_info->skb */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4136
		}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4137
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4138
		/*
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4139
		 * XXX if it was allocated cleanly it will never map to a
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4140
		 * boundary crossing
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4141
		 */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4142
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4143
		/* Fix for errata 23, can't cross 64kB boundary */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4144
		if (!e1000_check_64k_bound(adapter,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4145
					(void *)(unsigned long)buffer_info->dma,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4146
					adapter->rx_buffer_len)) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4147
			e_err("dma align check failed: %u bytes at %p\n",
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4148
			      adapter->rx_buffer_len,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4149
			      (void *)(unsigned long)buffer_info->dma);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4150
			dev_kfree_skb(skb);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4151
			buffer_info->skb = NULL;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4152
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4153
			dma_unmap_single(&pdev->dev, buffer_info->dma,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4154
					 adapter->rx_buffer_len,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4155
					 DMA_FROM_DEVICE);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4156
			buffer_info->dma = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4157
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4158
			adapter->alloc_rx_buff_failed++;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4159
			break; /* while !buffer_info->skb */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4160
		}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4161
		rx_desc = E1000_RX_DESC(*rx_ring, i);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4162
		rx_desc->buffer_addr = cpu_to_le64(buffer_info->dma);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4163
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4164
		if (unlikely(++i == rx_ring->count))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4165
			i = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4166
		buffer_info = &rx_ring->buffer_info[i];
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4167
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4168
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4169
	if (likely(rx_ring->next_to_use != i)) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4170
		rx_ring->next_to_use = i;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4171
		if (unlikely(i-- == 0))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4172
			i = (rx_ring->count - 1);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4173
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4174
		/* Force memory writes to complete before letting h/w
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4175
		 * know there are new descriptors to fetch.  (Only
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4176
		 * applicable for weak-ordered memory model archs,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4177
		 * such as IA-64). */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4178
		wmb();
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4179
		writel(i, hw->hw_addr + rx_ring->rdt);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4180
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4181
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4182
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4183
/**
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4184
 * e1000_smartspeed - Workaround for SmartSpeed on 82541 and 82547 controllers.
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4185
 * @adapter:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4186
 **/
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4187
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4188
static void e1000_smartspeed(struct e1000_adapter *adapter)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4189
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4190
	struct e1000_hw *hw = &adapter->hw;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4191
	u16 phy_status;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4192
	u16 phy_ctrl;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4193
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4194
	if ((hw->phy_type != e1000_phy_igp) || !hw->autoneg ||
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4195
	   !(hw->autoneg_advertised & ADVERTISE_1000_FULL))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4196
		return;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4197
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4198
	if (adapter->smartspeed == 0) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4199
		/* If Master/Slave config fault is asserted twice,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4200
		 * we assume back-to-back */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4201
		e1000_read_phy_reg(hw, PHY_1000T_STATUS, &phy_status);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4202
		if (!(phy_status & SR_1000T_MS_CONFIG_FAULT)) return;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4203
		e1000_read_phy_reg(hw, PHY_1000T_STATUS, &phy_status);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4204
		if (!(phy_status & SR_1000T_MS_CONFIG_FAULT)) return;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4205
		e1000_read_phy_reg(hw, PHY_1000T_CTRL, &phy_ctrl);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4206
		if (phy_ctrl & CR_1000T_MS_ENABLE) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4207
			phy_ctrl &= ~CR_1000T_MS_ENABLE;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4208
			e1000_write_phy_reg(hw, PHY_1000T_CTRL,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4209
					    phy_ctrl);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4210
			adapter->smartspeed++;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4211
			if (!e1000_phy_setup_autoneg(hw) &&
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4212
			   !e1000_read_phy_reg(hw, PHY_CTRL,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4213
				   	       &phy_ctrl)) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4214
				phy_ctrl |= (MII_CR_AUTO_NEG_EN |
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4215
					     MII_CR_RESTART_AUTO_NEG);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4216
				e1000_write_phy_reg(hw, PHY_CTRL,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4217
						    phy_ctrl);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4218
			}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4219
		}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4220
		return;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4221
	} else if (adapter->smartspeed == E1000_SMARTSPEED_DOWNSHIFT) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4222
		/* If still no link, perhaps using 2/3 pair cable */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4223
		e1000_read_phy_reg(hw, PHY_1000T_CTRL, &phy_ctrl);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4224
		phy_ctrl |= CR_1000T_MS_ENABLE;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4225
		e1000_write_phy_reg(hw, PHY_1000T_CTRL, phy_ctrl);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4226
		if (!e1000_phy_setup_autoneg(hw) &&
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4227
		   !e1000_read_phy_reg(hw, PHY_CTRL, &phy_ctrl)) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4228
			phy_ctrl |= (MII_CR_AUTO_NEG_EN |
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4229
				     MII_CR_RESTART_AUTO_NEG);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4230
			e1000_write_phy_reg(hw, PHY_CTRL, phy_ctrl);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4231
		}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4232
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4233
	/* Restart process after E1000_SMARTSPEED_MAX iterations */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4234
	if (adapter->smartspeed++ == E1000_SMARTSPEED_MAX)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4235
		adapter->smartspeed = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4236
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4237
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4238
/**
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4239
 * e1000_ioctl -
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4240
 * @netdev:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4241
 * @ifreq:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4242
 * @cmd:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4243
 **/
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4244
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4245
static int e1000_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4246
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4247
	switch (cmd) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4248
	case SIOCGMIIPHY:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4249
	case SIOCGMIIREG:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4250
	case SIOCSMIIREG:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4251
		return e1000_mii_ioctl(netdev, ifr, cmd);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4252
	default:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4253
		return -EOPNOTSUPP;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4254
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4255
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4256
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4257
/**
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4258
 * e1000_mii_ioctl -
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4259
 * @netdev:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4260
 * @ifreq:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4261
 * @cmd:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4262
 **/
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4263
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4264
static int e1000_mii_ioctl(struct net_device *netdev, struct ifreq *ifr,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4265
			   int cmd)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4266
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4267
	struct e1000_adapter *adapter = netdev_priv(netdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4268
	struct e1000_hw *hw = &adapter->hw;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4269
	struct mii_ioctl_data *data = if_mii(ifr);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4270
	int retval;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4271
	u16 mii_reg;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4272
	u16 spddplx;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4273
	unsigned long flags;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4274
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4275
	if (hw->media_type != e1000_media_type_copper)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4276
		return -EOPNOTSUPP;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4277
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4278
	switch (cmd) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4279
	case SIOCGMIIPHY:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4280
		data->phy_id = hw->phy_addr;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4281
		break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4282
	case SIOCGMIIREG:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4283
		spin_lock_irqsave(&adapter->stats_lock, flags);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4284
		if (e1000_read_phy_reg(hw, data->reg_num & 0x1F,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4285
				   &data->val_out)) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4286
			spin_unlock_irqrestore(&adapter->stats_lock, flags);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4287
			return -EIO;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4288
		}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4289
		spin_unlock_irqrestore(&adapter->stats_lock, flags);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4290
		break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4291
	case SIOCSMIIREG:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4292
		if (data->reg_num & ~(0x1F))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4293
			return -EFAULT;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4294
		mii_reg = data->val_in;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4295
		spin_lock_irqsave(&adapter->stats_lock, flags);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4296
		if (e1000_write_phy_reg(hw, data->reg_num,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4297
					mii_reg)) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4298
			spin_unlock_irqrestore(&adapter->stats_lock, flags);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4299
			return -EIO;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4300
		}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4301
		spin_unlock_irqrestore(&adapter->stats_lock, flags);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4302
		if (hw->media_type == e1000_media_type_copper) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4303
			switch (data->reg_num) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4304
			case PHY_CTRL:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4305
				if (mii_reg & MII_CR_POWER_DOWN)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4306
					break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4307
				if (mii_reg & MII_CR_AUTO_NEG_EN) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4308
					hw->autoneg = 1;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4309
					hw->autoneg_advertised = 0x2F;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4310
				} else {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4311
					if (mii_reg & 0x40)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4312
						spddplx = SPEED_1000;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4313
					else if (mii_reg & 0x2000)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4314
						spddplx = SPEED_100;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4315
					else
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4316
						spddplx = SPEED_10;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4317
					spddplx += (mii_reg & 0x100)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4318
						   ? DUPLEX_FULL :
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4319
						   DUPLEX_HALF;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4320
					retval = e1000_set_spd_dplx(adapter,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4321
								    spddplx);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4322
					if (retval)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4323
						return retval;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4324
				}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4325
				if (netif_running(adapter->netdev))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4326
					e1000_reinit_locked(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4327
				else
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4328
					e1000_reset(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4329
				break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4330
			case M88E1000_PHY_SPEC_CTRL:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4331
			case M88E1000_EXT_PHY_SPEC_CTRL:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4332
				if (e1000_phy_reset(hw))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4333
					return -EIO;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4334
				break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4335
			}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4336
		} else {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4337
			switch (data->reg_num) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4338
			case PHY_CTRL:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4339
				if (mii_reg & MII_CR_POWER_DOWN)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4340
					break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4341
				if (netif_running(adapter->netdev))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4342
					e1000_reinit_locked(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4343
				else
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4344
					e1000_reset(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4345
				break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4346
			}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4347
		}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4348
		break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4349
	default:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4350
		return -EOPNOTSUPP;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4351
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4352
	return E1000_SUCCESS;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4353
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4354
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4355
void e1000_pci_set_mwi(struct e1000_hw *hw)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4356
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4357
	struct e1000_adapter *adapter = hw->back;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4358
	int ret_val = pci_set_mwi(adapter->pdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4359
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4360
	if (ret_val)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4361
		e_err("Error in setting MWI\n");
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4362
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4363
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4364
void e1000_pci_clear_mwi(struct e1000_hw *hw)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4365
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4366
	struct e1000_adapter *adapter = hw->back;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4367
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4368
	pci_clear_mwi(adapter->pdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4369
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4370
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4371
int e1000_pcix_get_mmrbc(struct e1000_hw *hw)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4372
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4373
	struct e1000_adapter *adapter = hw->back;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4374
	return pcix_get_mmrbc(adapter->pdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4375
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4376
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4377
void e1000_pcix_set_mmrbc(struct e1000_hw *hw, int mmrbc)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4378
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4379
	struct e1000_adapter *adapter = hw->back;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4380
	pcix_set_mmrbc(adapter->pdev, mmrbc);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4381
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4382
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4383
void e1000_io_write(struct e1000_hw *hw, unsigned long port, u32 value)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4384
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4385
	outl(value, port);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4386
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4387
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4388
static void e1000_vlan_rx_register(struct net_device *netdev,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4389
				   struct vlan_group *grp)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4390
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4391
	struct e1000_adapter *adapter = netdev_priv(netdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4392
	struct e1000_hw *hw = &adapter->hw;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4393
	u32 ctrl, rctl;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4394
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4395
	if (!test_bit(__E1000_DOWN, &adapter->flags))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4396
		e1000_irq_disable(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4397
	adapter->vlgrp = grp;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4398
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4399
	if (grp) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4400
		/* enable VLAN tag insert/strip */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4401
		ctrl = er32(CTRL);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4402
		ctrl |= E1000_CTRL_VME;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4403
		ew32(CTRL, ctrl);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4404
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4405
		/* enable VLAN receive filtering */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4406
		rctl = er32(RCTL);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4407
		rctl &= ~E1000_RCTL_CFIEN;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4408
		if (!(netdev->flags & IFF_PROMISC))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4409
			rctl |= E1000_RCTL_VFE;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4410
		ew32(RCTL, rctl);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4411
		e1000_update_mng_vlan(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4412
	} else {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4413
		/* disable VLAN tag insert/strip */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4414
		ctrl = er32(CTRL);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4415
		ctrl &= ~E1000_CTRL_VME;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4416
		ew32(CTRL, ctrl);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4417
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4418
		/* disable VLAN receive filtering */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4419
		rctl = er32(RCTL);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4420
		rctl &= ~E1000_RCTL_VFE;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4421
		ew32(RCTL, rctl);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4422
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4423
		if (adapter->mng_vlan_id != (u16)E1000_MNG_VLAN_NONE) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4424
			e1000_vlan_rx_kill_vid(netdev, adapter->mng_vlan_id);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4425
			adapter->mng_vlan_id = E1000_MNG_VLAN_NONE;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4426
		}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4427
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4428
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4429
	if (!test_bit(__E1000_DOWN, &adapter->flags))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4430
		e1000_irq_enable(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4431
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4432
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4433
static void e1000_vlan_rx_add_vid(struct net_device *netdev, u16 vid)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4434
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4435
	struct e1000_adapter *adapter = netdev_priv(netdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4436
	struct e1000_hw *hw = &adapter->hw;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4437
	u32 vfta, index;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4438
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4439
	if ((hw->mng_cookie.status &
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4440
	     E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT) &&
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4441
	    (vid == adapter->mng_vlan_id))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4442
		return;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4443
	/* add VID to filter table */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4444
	index = (vid >> 5) & 0x7F;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4445
	vfta = E1000_READ_REG_ARRAY(hw, VFTA, index);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4446
	vfta |= (1 << (vid & 0x1F));
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4447
	e1000_write_vfta(hw, index, vfta);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4448
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4449
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4450
static void e1000_vlan_rx_kill_vid(struct net_device *netdev, u16 vid)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4451
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4452
	struct e1000_adapter *adapter = netdev_priv(netdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4453
	struct e1000_hw *hw = &adapter->hw;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4454
	u32 vfta, index;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4455
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4456
	if (!test_bit(__E1000_DOWN, &adapter->flags))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4457
		e1000_irq_disable(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4458
	vlan_group_set_device(adapter->vlgrp, vid, NULL);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4459
	if (!test_bit(__E1000_DOWN, &adapter->flags))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4460
		e1000_irq_enable(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4461
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4462
	/* remove VID from filter table */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4463
	index = (vid >> 5) & 0x7F;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4464
	vfta = E1000_READ_REG_ARRAY(hw, VFTA, index);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4465
	vfta &= ~(1 << (vid & 0x1F));
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4466
	e1000_write_vfta(hw, index, vfta);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4467
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4468
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4469
static void e1000_restore_vlan(struct e1000_adapter *adapter)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4470
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4471
	e1000_vlan_rx_register(adapter->netdev, adapter->vlgrp);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4472
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4473
	if (adapter->vlgrp) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4474
		u16 vid;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4475
		for (vid = 0; vid < VLAN_GROUP_ARRAY_LEN; vid++) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4476
			if (!vlan_group_get_device(adapter->vlgrp, vid))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4477
				continue;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4478
			e1000_vlan_rx_add_vid(adapter->netdev, vid);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4479
		}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4480
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4481
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4482
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4483
int e1000_set_spd_dplx(struct e1000_adapter *adapter, u16 spddplx)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4484
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4485
	struct e1000_hw *hw = &adapter->hw;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4486
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4487
	hw->autoneg = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4488
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4489
	/* Fiber NICs only allow 1000 gbps Full duplex */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4490
	if ((hw->media_type == e1000_media_type_fiber) &&
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4491
		spddplx != (SPEED_1000 + DUPLEX_FULL)) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4492
		e_err("Unsupported Speed/Duplex configuration\n");
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4493
		return -EINVAL;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4494
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4495
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4496
	switch (spddplx) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4497
	case SPEED_10 + DUPLEX_HALF:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4498
		hw->forced_speed_duplex = e1000_10_half;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4499
		break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4500
	case SPEED_10 + DUPLEX_FULL:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4501
		hw->forced_speed_duplex = e1000_10_full;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4502
		break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4503
	case SPEED_100 + DUPLEX_HALF:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4504
		hw->forced_speed_duplex = e1000_100_half;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4505
		break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4506
	case SPEED_100 + DUPLEX_FULL:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4507
		hw->forced_speed_duplex = e1000_100_full;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4508
		break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4509
	case SPEED_1000 + DUPLEX_FULL:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4510
		hw->autoneg = 1;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4511
		hw->autoneg_advertised = ADVERTISE_1000_FULL;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4512
		break;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4513
	case SPEED_1000 + DUPLEX_HALF: /* not supported */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4514
	default:
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4515
		e_err("Unsupported Speed/Duplex configuration\n");
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4516
		return -EINVAL;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4517
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4518
	return 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4519
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4520
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4521
static int __e1000_shutdown(struct pci_dev *pdev, bool *enable_wake)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4522
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4523
	struct net_device *netdev = pci_get_drvdata(pdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4524
	struct e1000_adapter *adapter = netdev_priv(netdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4525
	struct e1000_hw *hw = &adapter->hw;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4526
	u32 ctrl, ctrl_ext, rctl, status;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4527
	u32 wufc = adapter->wol;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4528
#ifdef CONFIG_PM
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4529
	int retval = 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4530
#endif
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4531
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4532
	netif_device_detach(netdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4533
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4534
	if (netif_running(netdev)) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4535
		WARN_ON(test_bit(__E1000_RESETTING, &adapter->flags));
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4536
		e1000_down(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4537
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4538
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4539
#ifdef CONFIG_PM
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4540
	retval = pci_save_state(pdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4541
	if (retval)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4542
		return retval;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4543
#endif
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4544
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4545
	status = er32(STATUS);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4546
	if (status & E1000_STATUS_LU)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4547
		wufc &= ~E1000_WUFC_LNKC;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4548
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4549
	if (wufc) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4550
		e1000_setup_rctl(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4551
		e1000_set_rx_mode(netdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4552
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4553
		/* turn on all-multi mode if wake on multicast is enabled */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4554
		if (wufc & E1000_WUFC_MC) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4555
			rctl = er32(RCTL);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4556
			rctl |= E1000_RCTL_MPE;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4557
			ew32(RCTL, rctl);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4558
		}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4559
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4560
		if (hw->mac_type >= e1000_82540) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4561
			ctrl = er32(CTRL);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4562
			/* advertise wake from D3Cold */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4563
			#define E1000_CTRL_ADVD3WUC 0x00100000
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4564
			/* phy power management enable */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4565
			#define E1000_CTRL_EN_PHY_PWR_MGMT 0x00200000
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4566
			ctrl |= E1000_CTRL_ADVD3WUC |
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4567
				E1000_CTRL_EN_PHY_PWR_MGMT;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4568
			ew32(CTRL, ctrl);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4569
		}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4570
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4571
		if (hw->media_type == e1000_media_type_fiber ||
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4572
		    hw->media_type == e1000_media_type_internal_serdes) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4573
			/* keep the laser running in D3 */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4574
			ctrl_ext = er32(CTRL_EXT);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4575
			ctrl_ext |= E1000_CTRL_EXT_SDP7_DATA;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4576
			ew32(CTRL_EXT, ctrl_ext);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4577
		}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4578
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4579
		ew32(WUC, E1000_WUC_PME_EN);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4580
		ew32(WUFC, wufc);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4581
	} else {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4582
		ew32(WUC, 0);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4583
		ew32(WUFC, 0);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4584
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4585
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4586
	e1000_release_manageability(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4587
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4588
	*enable_wake = !!wufc;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4589
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4590
	/* make sure adapter isn't asleep if manageability is enabled */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4591
	if (adapter->en_mng_pt)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4592
		*enable_wake = true;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4593
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4594
	if (netif_running(netdev))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4595
		e1000_free_irq(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4596
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4597
	pci_disable_device(pdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4598
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4599
	return 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4600
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4601
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4602
#ifdef CONFIG_PM
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4603
static int e1000_suspend(struct pci_dev *pdev, pm_message_t state)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4604
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4605
	int retval;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4606
	bool wake;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4607
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4608
	retval = __e1000_shutdown(pdev, &wake);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4609
	if (retval)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4610
		return retval;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4611
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4612
	if (wake) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4613
		pci_prepare_to_sleep(pdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4614
	} else {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4615
		pci_wake_from_d3(pdev, false);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4616
		pci_set_power_state(pdev, PCI_D3hot);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4617
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4618
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4619
	return 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4620
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4621
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4622
static int e1000_resume(struct pci_dev *pdev)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4623
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4624
	struct net_device *netdev = pci_get_drvdata(pdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4625
	struct e1000_adapter *adapter = netdev_priv(netdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4626
	struct e1000_hw *hw = &adapter->hw;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4627
	u32 err;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4628
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4629
	pci_set_power_state(pdev, PCI_D0);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4630
	pci_restore_state(pdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4631
	pci_save_state(pdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4632
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4633
	if (adapter->need_ioport)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4634
		err = pci_enable_device(pdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4635
	else
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4636
		err = pci_enable_device_mem(pdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4637
	if (err) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4638
		pr_err("Cannot enable PCI device from suspend\n");
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4639
		return err;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4640
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4641
	pci_set_master(pdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4642
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4643
	pci_enable_wake(pdev, PCI_D3hot, 0);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4644
	pci_enable_wake(pdev, PCI_D3cold, 0);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4645
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4646
	if (netif_running(netdev)) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4647
		err = e1000_request_irq(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4648
		if (err)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4649
			return err;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4650
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4651
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4652
	e1000_power_up_phy(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4653
	e1000_reset(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4654
	ew32(WUS, ~0);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4655
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4656
	e1000_init_manageability(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4657
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4658
	if (netif_running(netdev))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4659
		e1000_up(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4660
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4661
	netif_device_attach(netdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4662
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4663
	return 0;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4664
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4665
#endif
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4666
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4667
static void e1000_shutdown(struct pci_dev *pdev)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4668
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4669
	bool wake;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4670
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4671
	__e1000_shutdown(pdev, &wake);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4672
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4673
	if (system_state == SYSTEM_POWER_OFF) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4674
		pci_wake_from_d3(pdev, wake);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4675
		pci_set_power_state(pdev, PCI_D3hot);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4676
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4677
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4678
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4679
#ifdef CONFIG_NET_POLL_CONTROLLER
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4680
/*
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4681
 * Polling 'interrupt' - used by things like netconsole to send skbs
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4682
 * without having to re-enable interrupts. It's not called while
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4683
 * the interrupt routine is executing.
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4684
 */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4685
static void e1000_netpoll(struct net_device *netdev)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4686
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4687
	struct e1000_adapter *adapter = netdev_priv(netdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4688
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4689
	disable_irq(adapter->pdev->irq);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4690
	e1000_intr(adapter->pdev->irq, netdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4691
	enable_irq(adapter->pdev->irq);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4692
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4693
#endif
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4694
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4695
/**
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4696
 * e1000_io_error_detected - called when PCI error is detected
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4697
 * @pdev: Pointer to PCI device
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4698
 * @state: The current pci connection state
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4699
 *
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4700
 * This function is called after a PCI bus error affecting
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4701
 * this device has been detected.
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4702
 */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4703
static pci_ers_result_t e1000_io_error_detected(struct pci_dev *pdev,
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4704
						pci_channel_state_t state)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4705
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4706
	struct net_device *netdev = pci_get_drvdata(pdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4707
	struct e1000_adapter *adapter = netdev_priv(netdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4708
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4709
	netif_device_detach(netdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4710
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4711
	if (state == pci_channel_io_perm_failure)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4712
		return PCI_ERS_RESULT_DISCONNECT;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4713
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4714
	if (netif_running(netdev))
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4715
		e1000_down(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4716
	pci_disable_device(pdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4717
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4718
	/* Request a slot slot reset. */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4719
	return PCI_ERS_RESULT_NEED_RESET;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4720
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4721
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4722
/**
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4723
 * e1000_io_slot_reset - called after the pci bus has been reset.
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4724
 * @pdev: Pointer to PCI device
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4725
 *
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4726
 * Restart the card from scratch, as if from a cold-boot. Implementation
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4727
 * resembles the first-half of the e1000_resume routine.
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4728
 */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4729
static pci_ers_result_t e1000_io_slot_reset(struct pci_dev *pdev)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4730
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4731
	struct net_device *netdev = pci_get_drvdata(pdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4732
	struct e1000_adapter *adapter = netdev_priv(netdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4733
	struct e1000_hw *hw = &adapter->hw;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4734
	int err;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4735
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4736
	if (adapter->need_ioport)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4737
		err = pci_enable_device(pdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4738
	else
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4739
		err = pci_enable_device_mem(pdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4740
	if (err) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4741
		pr_err("Cannot re-enable PCI device after reset.\n");
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4742
		return PCI_ERS_RESULT_DISCONNECT;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4743
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4744
	pci_set_master(pdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4745
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4746
	pci_enable_wake(pdev, PCI_D3hot, 0);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4747
	pci_enable_wake(pdev, PCI_D3cold, 0);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4748
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4749
	e1000_reset(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4750
	ew32(WUS, ~0);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4751
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4752
	return PCI_ERS_RESULT_RECOVERED;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4753
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4754
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4755
/**
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4756
 * e1000_io_resume - called when traffic can start flowing again.
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4757
 * @pdev: Pointer to PCI device
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4758
 *
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4759
 * This callback is called when the error recovery driver tells us that
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4760
 * its OK to resume normal operation. Implementation resembles the
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4761
 * second-half of the e1000_resume routine.
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4762
 */
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4763
static void e1000_io_resume(struct pci_dev *pdev)
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4764
{
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4765
	struct net_device *netdev = pci_get_drvdata(pdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4766
	struct e1000_adapter *adapter = netdev_priv(netdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4767
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4768
	e1000_init_manageability(adapter);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4769
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4770
	if (netif_running(netdev)) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4771
		if (e1000_up(adapter)) {
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4772
			pr_info("can't bring device back up after reset\n");
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4773
			return;
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4774
		}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4775
	}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4776
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4777
	netif_device_attach(netdev);
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4778
}
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4779
9c0710c38627 Added e1000 driver for 2.6.35.
Florian Pose <fp@igh-essen.com>
parents:
diff changeset
  4780
/* e1000_main.c */