diff options
Diffstat (limited to 'drivers/net/e1000/e1000_main.c')
| -rw-r--r-- | drivers/net/e1000/e1000_main.c | 438 |
1 files changed, 272 insertions, 166 deletions
diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c index 98ef9f85482f..ce0d35fe3947 100644 --- a/drivers/net/e1000/e1000_main.c +++ b/drivers/net/e1000/e1000_main.c @@ -1,25 +1,24 @@ /******************************************************************************* - - Copyright(c) 1999 - 2006 Intel Corporation. All rights reserved. - - This program is free software; you can redistribute it and/or modify it - under the terms of the GNU General Public License as published by the Free - Software Foundation; either version 2 of the License, or (at your option) - any later version. - - This program is distributed in the hope that it will be useful, but WITHOUT - ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + Intel PRO/1000 Linux driver + Copyright(c) 1999 - 2006 Intel Corporation. + + This program is free software; you can redistribute it and/or modify it + under the terms and conditions of the GNU General Public License, + version 2, as published by the Free Software Foundation. + + This program is distributed in the hope it will be useful, but WITHOUT + ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. - + You should have received a copy of the GNU General Public License along with - this program; if not, write to the Free Software Foundation, Inc., 59 - Temple Place - Suite 330, Boston, MA 02111-1307, USA. - - The full GNU General Public License is included in this distribution in the - file called LICENSE. - + this program; if not, write to the Free Software Foundation, Inc., + 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + + The full GNU General Public License is included in this distribution in + the file called "COPYING". + Contact Information: Linux NICS <linux.nics@intel.com> e1000-devel Mailing List <e1000-devel@lists.sourceforge.net> @@ -36,7 +35,7 @@ static char e1000_driver_string[] = "Intel(R) PRO/1000 Network Driver"; #else #define DRIVERNAPI "-NAPI" #endif -#define DRV_VERSION "7.1.9-k4"DRIVERNAPI +#define DRV_VERSION "7.2.9-k2"DRIVERNAPI char e1000_driver_version[] = DRV_VERSION; static char e1000_copyright[] = "Copyright (c) 1999-2006 Intel Corporation."; @@ -99,6 +98,7 @@ static struct pci_device_id e1000_pci_tbl[] = { INTEL_E1000_ETHERNET_DEVICE(0x1098), INTEL_E1000_ETHERNET_DEVICE(0x1099), INTEL_E1000_ETHERNET_DEVICE(0x109A), + INTEL_E1000_ETHERNET_DEVICE(0x10A4), INTEL_E1000_ETHERNET_DEVICE(0x10B5), INTEL_E1000_ETHERNET_DEVICE(0x10B9), INTEL_E1000_ETHERNET_DEVICE(0x10BA), @@ -109,16 +109,24 @@ static struct pci_device_id e1000_pci_tbl[] = { MODULE_DEVICE_TABLE(pci, e1000_pci_tbl); +int e1000_up(struct e1000_adapter *adapter); +void e1000_down(struct e1000_adapter *adapter); +void e1000_reinit_locked(struct e1000_adapter *adapter); +void e1000_reset(struct e1000_adapter *adapter); +int e1000_set_spd_dplx(struct e1000_adapter *adapter, uint16_t spddplx); +int e1000_setup_all_tx_resources(struct e1000_adapter *adapter); +int e1000_setup_all_rx_resources(struct e1000_adapter *adapter); +void e1000_free_all_tx_resources(struct e1000_adapter *adapter); +void e1000_free_all_rx_resources(struct e1000_adapter *adapter); static int e1000_setup_tx_resources(struct e1000_adapter *adapter, - struct e1000_tx_ring *txdr); + struct e1000_tx_ring *txdr); static int e1000_setup_rx_resources(struct e1000_adapter *adapter, - struct e1000_rx_ring *rxdr); + struct e1000_rx_ring *rxdr); static void e1000_free_tx_resources(struct e1000_adapter *adapter, - struct e1000_tx_ring *tx_ring); + struct e1000_tx_ring *tx_ring); static void e1000_free_rx_resources(struct e1000_adapter *adapter, - struct e1000_rx_ring *rx_ring); - -/* Local Function Prototypes */ + struct e1000_rx_ring *rx_ring); +void e1000_update_stats(struct e1000_adapter *adapter); static int e1000_init_module(void); static void e1000_exit_module(void); @@ -145,7 +153,7 @@ static int e1000_xmit_frame(struct sk_buff *skb, struct net_device *netdev); static struct net_device_stats * e1000_get_stats(struct net_device *netdev); static int e1000_change_mtu(struct net_device *netdev, int new_mtu); static int e1000_set_mac(struct net_device *netdev, void *p); -static irqreturn_t e1000_intr(int irq, void *data, struct pt_regs *regs); +static irqreturn_t e1000_intr(int irq, void *data); static boolean_t e1000_clean_tx_irq(struct e1000_adapter *adapter, struct e1000_tx_ring *tx_ring); #ifdef CONFIG_E1000_NAPI @@ -171,6 +179,7 @@ static void e1000_alloc_rx_buffers_ps(struct e1000_adapter *adapter, static int e1000_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd); static int e1000_mii_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd); +void e1000_set_ethtool_ops(struct net_device *netdev); static void e1000_enter_82542_rst(struct e1000_adapter *adapter); static void e1000_leave_82542_rst(struct e1000_adapter *adapter); static void e1000_tx_timeout(struct net_device *dev); @@ -195,6 +204,8 @@ static void e1000_shutdown(struct pci_dev *pdev); static void e1000_netpoll (struct net_device *netdev); #endif +extern void e1000_check_options(struct e1000_adapter *adapter); + static pci_ers_result_t e1000_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state); static pci_ers_result_t e1000_io_slot_reset(struct pci_dev *pdev); @@ -211,9 +222,9 @@ static struct pci_driver e1000_driver = { .id_table = e1000_pci_tbl, .probe = e1000_probe, .remove = __devexit_p(e1000_remove), +#ifdef CONFIG_PM /* Power Managment Hooks */ .suspend = e1000_suspend, -#ifdef CONFIG_PM .resume = e1000_resume, #endif .shutdown = e1000_shutdown, @@ -245,7 +256,7 @@ e1000_init_module(void) printk(KERN_INFO "%s\n", e1000_copyright); - ret = pci_module_init(&e1000_driver); + ret = pci_register_driver(&e1000_driver); return ret; } @@ -465,13 +476,14 @@ e1000_up(struct e1000_adapter *adapter) adapter->tx_queue_len = netdev->tx_queue_len; - mod_timer(&adapter->watchdog_timer, jiffies); - #ifdef CONFIG_E1000_NAPI netif_poll_enable(netdev); #endif e1000_irq_enable(adapter); + clear_bit(__E1000_DOWN, &adapter->flags); + + mod_timer(&adapter->watchdog_timer, jiffies + 2 * HZ); return 0; } @@ -485,7 +497,7 @@ e1000_up(struct e1000_adapter *adapter) * **/ -static void e1000_power_up_phy(struct e1000_adapter *adapter) +void e1000_power_up_phy(struct e1000_adapter *adapter) { uint16_t mii_reg = 0; @@ -501,25 +513,48 @@ static void e1000_power_up_phy(struct e1000_adapter *adapter) static void e1000_power_down_phy(struct e1000_adapter *adapter) { - boolean_t mng_mode_enabled = (adapter->hw.mac_type >= e1000_82571) && - e1000_check_mng_mode(&adapter->hw); - /* Power down the PHY so no link is implied when interface is down - * The PHY cannot be powered down if any of the following is TRUE + /* Power down the PHY so no link is implied when interface is down * + * The PHY cannot be powered down if any of the following is TRUE * * (a) WoL is enabled * (b) AMT is active * (c) SoL/IDER session is active */ if (!adapter->wol && adapter->hw.mac_type >= e1000_82540 && - adapter->hw.mac_type != e1000_ich8lan && - adapter->hw.media_type == e1000_media_type_copper && - !(E1000_READ_REG(&adapter->hw, MANC) & E1000_MANC_SMBUS_EN) && - !mng_mode_enabled && - !e1000_check_phy_reset_block(&adapter->hw)) { + adapter->hw.media_type == e1000_media_type_copper) { uint16_t mii_reg = 0; + + switch (adapter->hw.mac_type) { + case e1000_82540: + case e1000_82545: + case e1000_82545_rev_3: + case e1000_82546: + case e1000_82546_rev_3: + case e1000_82541: + case e1000_82541_rev_2: + case e1000_82547: + case e1000_82547_rev_2: + if (E1000_READ_REG(&adapter->hw, MANC) & + E1000_MANC_SMBUS_EN) + goto out; + break; + case e1000_82571: + case e1000_82572: + case e1000_82573: + case e1000_80003es2lan: + case e1000_ich8lan: + if (e1000_check_mng_mode(&adapter->hw) || + e1000_check_phy_reset_block(&adapter->hw)) + goto out; + break; + default: + goto out; + } e1000_read_phy_reg(&adapter->hw, PHY_CTRL, &mii_reg); mii_reg |= MII_CR_POWER_DOWN; e1000_write_phy_reg(&adapter->hw, PHY_CTRL, mii_reg); mdelay(1); } +out: + return; } void @@ -527,6 +562,10 @@ e1000_down(struct e1000_adapter *adapter) { struct net_device *netdev = adapter->netdev; + /* signal that we're down so the interrupt handler does not + * reschedule our watchdog timer */ + set_bit(__E1000_DOWN, &adapter->flags); + e1000_irq_disable(adapter); del_timer_sync(&adapter->tx_fifo_stall_timer); @@ -562,6 +601,9 @@ void e1000_reset(struct e1000_adapter *adapter) { uint32_t pba, manc; +#ifdef DISABLE_MULR + uint32_t tctl; +#endif uint16_t fc_high_water_mark = E1000_FC_HIGH_DIFF; /* Repartition Pba for greater than 9k mtu @@ -628,6 +670,12 @@ e1000_reset(struct e1000_adapter *adapter) e1000_reset_hw(&adapter->hw); if (adapter->hw.mac_type >= e1000_82544) E1000_WRITE_REG(&adapter->hw, WUC, 0); +#ifdef DISABLE_MULR + /* disable Multiple Reads in Transmit Control Register for debugging */ + tctl = E1000_READ_REG(hw, TCTL); + E1000_WRITE_REG(hw, TCTL, tctl & ~E1000_TCTL_MULR); + +#endif if (e1000_init_hw(&adapter->hw)) DPRINTK(PROBE, ERR, "Hardware Error\n"); e1000_update_mng_vlan(adapter); @@ -651,9 +699,7 @@ e1000_reset(struct e1000_adapter *adapter) phy_data); } - if (adapter->hw.mac_type < e1000_ich8lan) - /* FIXME: this code is duplicate and wrong for PCI Express */ - if (adapter->en_mng_pt) { + if ((adapter->en_mng_pt) && (adapter->hw.mac_type < e1000_82571)) { manc = E1000_READ_REG(&adapter->hw, MANC); manc |= (E1000_MANC_ARP_EN | E1000_MANC_EN_MNG2HOST); E1000_WRITE_REG(&adapter->hw, MANC, manc); @@ -682,9 +728,9 @@ e1000_probe(struct pci_dev *pdev, unsigned long flash_start, flash_len; static int cards_found = 0; - static int e1000_ksp3_port_a = 0; /* global ksp3 port a indication */ + static int global_quad_port_a = 0; /* global ksp3 port a indication */ int i, err, pci_using_dac; - uint16_t eeprom_data; + uint16_t eeprom_data = 0; uint16_t eeprom_apme_mask = E1000_EEPROM_APME; if ((err = pci_enable_device(pdev))) return err; @@ -696,21 +742,20 @@ e1000_probe(struct pci_dev *pdev, if ((err = pci_set_dma_mask(pdev, DMA_32BIT_MASK)) && (err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK))) { E1000_ERR("No usable DMA configuration, aborting\n"); - return err; + goto err_dma; } pci_using_dac = 0; } if ((err = pci_request_regions(pdev, e1000_driver_name))) - return err; + goto err_pci_reg; pci_set_master(pdev); + err = -ENOMEM; netdev = alloc_etherdev(sizeof(struct e1000_adapter)); - if (!netdev) { - err = -ENOMEM; + if (!netdev) goto err_alloc_etherdev; - } SET_MODULE_OWNER(netdev); SET_NETDEV_DEV(netdev, &pdev->dev); @@ -725,11 +770,10 @@ e1000_probe(struct pci_dev *pdev, mmio_start = pci_resource_start(pdev, BAR_0); mmio_len = pci_resource_len(pdev, BAR_0); + err = -EIO; adapter->hw.hw_addr = ioremap(mmio_start, mmio_len); - if (!adapter->hw.hw_addr) { - err = -EIO; + if (!adapter->hw.hw_addr) goto err_ioremap; - } for (i = BAR_1; i <= BAR_5; i++) { if (pci_resource_len(pdev, i) == 0) @@ -761,7 +805,7 @@ e1000_probe(struct pci_dev *pdev, #ifdef CONFIG_NET_POLL_CONTROLLER netdev->poll_controller = e1000_netpoll; #endif - strcpy(netdev->name, pci_name(pdev)); + strncpy(netdev->name, pci_name(pdev), sizeof(netdev->name) - 1); netdev->mem_start = mmio_start; netdev->mem_end = mmio_start + mmio_len; @@ -774,6 +818,7 @@ e1000_probe(struct pci_dev *pdev, if ((err = e1000_sw_init(adapter))) goto err_sw_init; + err = -EIO; /* Flash BAR mapping must happen after e1000_sw_init * because it depends on mac_type */ if ((adapter->hw.mac_type == e1000_ich8lan) && @@ -781,24 +826,13 @@ e1000_probe(struct pci_dev *pdev, flash_start = pci_resource_start(pdev, 1); flash_len = pci_resource_len(pdev, 1); adapter->hw.flash_address = ioremap(flash_start, flash_len); - if (!adapter->hw.flash_address) { - err = -EIO; + if (!adapter->hw.flash_address) goto err_flashmap; - } } - if ((err = e1000_check_phy_reset_block(&adapter->hw))) + if (e1000_check_phy_reset_block(&adapter->hw)) DPRINTK(PROBE, INFO, "PHY reset is blocked due to SOL/IDER session.\n"); - /* if ksp3, indicate if it's port a being setup */ - if (pdev->device == E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3 && - e1000_ksp3_port_a == 0) - adapter->ksp3_port_a = 1; - e1000_ksp3_port_a++; - /* Reset for multiple KP3 adapters */ - if (e1000_ksp3_port_a == 4) - e1000_ksp3_port_a = 0; - if (adapter->hw.mac_type >= e1000_82543) { netdev->features = NETIF_F_SG | NETIF_F_HW_CSUM | @@ -830,7 +864,7 @@ e1000_probe(struct pci_dev *pdev, if (e1000_init_eeprom_params(&adapter->hw)) { E1000_ERR("EEPROM initialization failed\n"); - return -EIO; + goto err_eeprom; } /* before reading the EEPROM, reset the controller to @@ -842,7 +876,6 @@ e1000_probe(struct pci_dev *pdev, if (e1000_validate_eeprom_checksum(&adapter->hw) < 0) { DPRINTK(PROBE, ERR, "The EEPROM Checksum Is Not Valid\n"); - err = -EIO; goto err_eeprom; } @@ -855,12 +888,9 @@ e1000_probe(struct pci_dev *pdev, if (!is_valid_ether_addr(netdev->perm_addr)) { DPRINTK(PROBE, ERR, "Invalid MAC Address\n"); - err = -EIO; goto err_eeprom; } - e1000_read_part_num(&adapter->hw, &(adapter->part_num)); - e1000_get_bus_info(&adapter->hw); init_timer(&adapter->tx_fifo_stall_timer); @@ -878,11 +908,6 @@ e1000_probe(struct pci_dev *pdev, INIT_WORK(&adapter->reset_task, (void (*)(void *))e1000_reset_task, netdev); - /* we're going to reset, so assume we have no link for now */ - - netif_carrier_off(netdev); - netif_stop_queue(netdev); - e1000_check_options(adapter); /* Initial Wake on LAN setting @@ -921,7 +946,38 @@ e1000_probe(struct pci_dev *pdev, break; } if (eeprom_data & eeprom_apme_mask) - adapter->wol |= E1000_WUFC_MAG; + adapter->eeprom_wol |= E1000_WUFC_MAG; + + /* now that we have the eeprom settings, apply the special cases + * where the eeprom may be wrong or the board simply won't support + * wake on lan on a particular port */ + switch (pdev->device) { + case E1000_DEV_ID_82546GB_PCIE: + adapter->eeprom_wol = 0; + break; + case E1000_DEV_ID_82546EB_FIBER: + case E1000_DEV_ID_82546GB_FIBER: + case E1000_DEV_ID_82571EB_FIBER: + /* Wake events only supported on port A for dual fiber + * regardless of eeprom setting */ + if (E1000_READ_REG(&adapter->hw, STATUS) & E1000_STATUS_FUNC_1) + adapter->eeprom_wol = 0; + break; + case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3: + case E1000_DEV_ID_82571EB_QUAD_COPPER: + /* if quad port adapter, disable WoL on all but port A */ + if (global_quad_port_a != 0) + adapter->eeprom_wol = 0; + else + adapter->quad_port_a = 1; + /* Reset for multiple quad port adapters */ + if (++global_quad_port_a == 4) + global_quad_port_a = 0; + break; + } + + /* initialize the wol settings based on the eeprom settings */ + adapter->wol = adapter->eeprom_wol; /* print bus type/speed/width info */ { @@ -958,22 +1014,43 @@ e1000_probe(struct pci_dev *pdev, if ((err = register_netdev(netdev))) goto err_register; + /* tell the stack to leave us alone until e1000_open() is called */ + netif_carrier_off(netdev); + netif_stop_queue(netdev); + DPRINTK(PROBE, INFO, "Intel(R) PRO/1000 Network Connection\n"); cards_found++; return 0; err_register: + e1000_release_hw_control(adapter); +err_eeprom: + if (!e1000_check_phy_reset_block(&adapter->hw)) + e1000_phy_hw_reset(&adapter->hw); + if (adapter->hw.flash_address) iounmap(adapter->hw.flash_address); err_flashmap: +#ifdef CONFIG_E1000_NAPI + for (i = 0; i < adapter->num_rx_queues; i++) + dev_put(&adapter->polling_netdev[i]); +#endif + + kfree(adapter->tx_ring); + kfree(adapter->rx_ring); +#ifdef CONFIG_E1000_NAPI + kfree(adapter->polling_netdev); +#endif err_sw_init: -err_eeprom: iounmap(adapter->hw.hw_addr); err_ioremap: free_netdev(netdev); err_alloc_etherdev: pci_release_regions(pdev); +err_pci_reg: +err_dma: + pci_disable_device(pdev); return err; } @@ -999,8 +1076,7 @@ e1000_remove(struct pci_dev *pdev) flush_scheduled_work(); - if (adapter->hw.mac_type >= e1000_82540 && - adapter->hw.mac_type != e1000_ich8lan && + if (adapter->hw.mac_type < e1000_82571 && adapter->hw.media_type == e1000_media_type_copper) { manc = E1000_READ_REG(&adapter->hw, MANC); if (manc & E1000_MANC_SMBUS_EN) { @@ -1128,6 +1204,8 @@ e1000_sw_init(struct e1000_adapter *adapter) atomic_set(&adapter->irq_sem, 1); spin_lock_init(&adapter->stats_lock); + set_bit(__E1000_DOWN, &adapter->flags); + return 0; } @@ -1193,7 +1271,7 @@ e1000_open(struct net_device *netdev) int err; /* disallow open during test */ - if (test_bit(__E1000_DRIVER_TESTING, &adapter->flags)) + if (test_bit(__E1000_TESTING, &adapter->flags)) return -EBUSY; /* allocate transmit descriptors */ @@ -1208,7 +1286,7 @@ e1000_open(struct net_device *netdev) err = e1000_request_irq(adapter); if (err) - goto err_up; + goto err_req_irq; e1000_power_up_phy(adapter); @@ -1229,6 +1307,9 @@ e1000_open(struct net_device *netdev) return E1000_SUCCESS; err_up: + e1000_power_down_phy(adapter); + e1000_free_irq(adapter); +err_req_irq: e1000_free_all_rx_resources(adapter); err_setup_rx: e1000_free_all_tx_resources(adapter); @@ -1263,8 +1344,12 @@ e1000_close(struct net_device *netdev) e1000_free_all_tx_resources(adapter); e1000_free_all_rx_resources(adapter); + /* kill manageability vlan ID if supported, but not if a vlan with + * the same ID is registered on the host OS (let 8021q kill it) */ if ((adapter->hw.mng_cookie.status & - E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT)) { + E1000_MNG_DHCP_COOKIE_STATUS_VLAN_SUPPORT) && + !(adapter->vlgrp && + adapter->vlgrp->vlan_devices[adapter->mng_vlan_id])) { e1000_vlan_rx_kill_vid(netdev, adapter->mng_vlan_id); } @@ -1381,10 +1466,6 @@ setup_tx_desc_die: * (Descriptors) for all queues * @adapter: board private structure * - * If this function returns with an error, then it's possible one or - * more of the rings is populated (while the rest are not). It is the - * callers duty to clean those orphaned rings. - * * Return 0 on success, negative on failure **/ @@ -1398,6 +1479,9 @@ e1000_setup_all_tx_resources(struct e1000_adapter *adapter) if (err) { DPRINTK(PROBE, ERR, "Allocation for Tx Queue %u failed\n", i); + for (i-- ; i >= 0; i--) + e1000_free_tx_resources(adapter, + &adapter->tx_ring[i]); break; } } @@ -1475,32 +1559,17 @@ e1000_configure_tx(struct e1000_adapter *adapter) /* Program the Transmit Control Register */ tctl = E1000_READ_REG(hw, TCTL); - tctl &= ~E1000_TCTL_CT; tctl |= E1000_TCTL_PSP | E1000_TCTL_RTLC | (E1000_COLLISION_THRESHOLD << E1000_CT_SHIFT); -#ifdef DISABLE_MULR - /* disable Multiple Reads for debugging */ - tctl &= ~E1000_TCTL_MULR; -#endif - if (hw->mac_type == e1000_82571 || hw->mac_type == e1000_82572) { tarc = E1000_READ_REG(hw, TARC0); - tarc |= ((1 << 25) | (1 << 21)); + tarc |= (1 << 21); E1000_WRITE_REG(hw, TARC0, tarc); - tarc = E1000_READ_REG(hw, TARC1); - tarc |= (1 << 25); - if (tctl & E1000_TCTL_MULR) - tarc &= ~(1 << 28); - else - tarc |= (1 << 28); - E1000_WRITE_REG(hw, TARC1, tarc); } else if (hw->mac_type == e1000_80003es2lan) { tarc = E1000_READ_REG(hw, TARC0); tarc |= 1; - if (hw->media_type == e1000_media_type_internal_serdes) - tarc |= (1 << 20); E1000_WRITE_REG(hw, TARC0, tarc); tarc = E1000_READ_REG(hw, TARC1); tarc |= 1; @@ -1639,10 +1708,6 @@ setup_rx_desc_die: * (Descriptors) for all queues * @adapter: board private structure * - * If this function returns with an error, then it's possible one or - * more of the rings is populated (while the rest are not). It is the - * callers duty to clean those orphaned rings. - * * Return 0 on success, negative on failure **/ @@ -1656,6 +1721,9 @@ e1000_setup_all_rx_resources(struct e1000_adapter *adapter) if (err) { DPRINTK(PROBE, ERR, "Allocation for Rx Queue %u failed\n", i); + for (i-- ; i >= 0; i--) + e1000_free_rx_resources(adapter, + &adapter->rx_ring[i]); break; } } @@ -2442,10 +2510,9 @@ e1000_watchdog(unsigned long data) * disable receives in the ISR and * reset device here in the watchdog */ - if (adapter->hw.mac_type == e1000_80003es2lan) { + if (adapter->hw.mac_type == e1000_80003es2lan) /* reset device */ schedule_work(&adapter->reset_task); - } } e1000_smartspeed(adapter); @@ -2545,7 +2612,7 @@ e1000_tso(struct e1000_adapter *adapter, struct e1000_tx_ring *tx_ring, cmd_length = E1000_TXD_CMD_IP; ipcse = skb->h.raw - skb->data - 1; #ifdef NETIF_F_TSO_IPV6 - } else if (skb->protocol == ntohs(ETH_P_IPV6)) { + } else if (skb->protocol == htons(ETH_P_IPV6)) { skb->nh.ipv6h->payload_len = 0; skb->h.th->check = ~csum_ipv6_magic(&skb->nh.ipv6h->saddr, @@ -2600,7 +2667,7 @@ e1000_tx_csum(struct e1000_adapter *adapter, struct e1000_tx_ring *tx_ring, unsigned int i; uint8_t css; - if (likely(skb->ip_summed == CHECKSUM_HW)) { + if (likely(skb->ip_summed == CHECKSUM_PARTIAL)) { css = skb->h.raw - skb->data; i = tx_ring->next_to_use; @@ -2861,6 +2928,35 @@ e1000_transfer_dhcp_info(struct e1000_adapter *adapter, struct sk_buff *skb) return 0; } +static int __e1000_maybe_stop_tx(struct net_device *netdev, int size) +{ + struct e1000_adapter *adapter = netdev_priv(netdev); + struct e1000_tx_ring *tx_ring = adapter->tx_ring; + + netif_stop_queue(netdev); + /* Herbert's original patch had: + * smp_mb__after_netif_stop_queue(); + * but since that doesn't exist yet, just open code it. */ + smp_mb(); + + /* We need to check again in a case another CPU has just + * made room available. */ + if (likely(E1000_DESC_UNUSED(tx_ring) < size)) + return -EBUSY; + + /* A reprieve! */ + netif_start_queue(netdev); + return 0; +} + +static int e1000_maybe_stop_tx(struct net_device *netdev, + struct e1000_tx_ring *tx_ring, int size) +{ + if (likely(E1000_DESC_UNUSED(tx_ring) >= size)) + return 0; + return __e1000_maybe_stop_tx(netdev, size); +} + #define TXD_USE_COUNT(S, X) (((S) >> (X)) + 1 ) static int e1000_xmit_frame(struct sk_buff *skb, struct net_device *netdev) @@ -2879,6 +2975,10 @@ e1000_xmit_frame(struct sk_buff *skb, struct net_device *netdev) unsigned int f; len -= skb->data_len; + /* This goes back to the question of how to logically map a tx queue + * to a flow. Right now, performance is impacted slightly negatively + * if using multiple tx queues. If the stack breaks away from a + * single qdisc implementation, we can look at this again. */ tx_ring = adapter->tx_ring; if (unlikely(skb->len <= 0)) { @@ -2927,11 +3027,11 @@ e1000_xmit_frame(struct sk_buff *skb, struct net_device *netdev) } /* reserve a descriptor for the offload context */ - if ((mss) || (skb->ip_summed == CHECKSUM_HW)) + if ((mss) || (skb->ip_summed == CHECKSUM_PARTIAL)) count++; count++; #else - if (skb->ip_summed == CHECKSUM_HW) + if (skb->ip_summed == CHECKSUM_PARTIAL) count++; #endif @@ -2974,8 +3074,7 @@ e1000_xmit_frame(struct sk_buff *skb, struct net_device *netdev) /* need: count + 2 desc gap to keep tail from touching * head, otherwise try next time */ - if (unlikely(E1000_DESC_UNUSED(tx_ring) < count + 2)) { - netif_stop_queue(netdev); + if (unlikely(e1000_maybe_stop_tx(netdev, tx_ring, count + 2))) { spin_unlock_irqrestore(&tx_ring->tx_lock, flags); return NETDEV_TX_BUSY; } @@ -2983,7 +3082,7 @@ e1000_xmit_frame(struct sk_buff *skb, struct net_device *netdev) if (unlikely(adapter->hw.mac_type == e1000_82547)) { if (unlikely(e1000_82547_fifo_workaround(adapter, skb))) { netif_stop_queue(netdev); - mod_timer(&adapter->tx_fifo_stall_timer, jiffies); + mod_timer(&adapter->tx_fifo_stall_timer, jiffies + 1); spin_unlock_irqrestore(&tx_ring->tx_lock, flags); return NETDEV_TX_BUSY; } @@ -3022,8 +3121,7 @@ e1000_xmit_frame(struct sk_buff *skb, struct net_device *netdev) netdev->trans_start = jiffies; /* Make sure there is space in the ring for the next send. */ - if (unlikely(E1000_DESC_UNUSED(tx_ring) < MAX_SKB_FRAGS + 2)) - netif_stop_queue(netdev); + e1000_maybe_stop_tx(netdev, tx_ring, MAX_SKB_FRAGS + 2); spin_unlock_irqrestore(&tx_ring->tx_lock, flags); return NETDEV_TX_OK; @@ -3100,11 +3198,13 @@ e1000_change_mtu(struct net_device *netdev, int new_mtu) } break; case e1000_82573: - /* only enable jumbo frames if ASPM is disabled completely - * this means both bits must be zero in 0x1A bits 3:2 */ + /* Jumbo Frames not supported if: + * - this is not an 82573L device + * - ASPM is enabled in any way (0x1A bits 3:2) */ e1000_read_eeprom(&adapter->hw, EEPROM_INIT_3GIO_3, 1, &eeprom_data); - if (eeprom_data & EEPROM_WORD1A_ASPM_MASK) { + if ((adapter->hw.device_id != E1000_DEV_ID_82573L) || + (eeprom_data & EEPROM_WORD1A_ASPM_MASK)) { if (max_frame > MAXIMUM_ETHERNET_FRAME_SIZE) { DPRINTK(PROBE, ERR, "Jumbo Frames not supported.\n"); @@ -3112,6 +3212,8 @@ e1000_change_mtu(struct net_device *netdev, int new_mtu) } break; } + /* ERT will be enabled later to enable wire speed receives */ + /* fall through to get support */ case e1000_82571: case e1000_82572: @@ -3297,16 +3399,15 @@ e1000_update_stats(struct e1000_adapter *adapter) adapter->stats.crcerrs + adapter->stats.algnerrc + adapter->stats.ruc + adapter->stats.roc + adapter->stats.cexterr; - adapter->net_stats.rx_length_errors = adapter->stats.ruc + - adapter->stats.roc; + adapter->stats.rlerrc = adapter->stats.ruc + adapter->stats.roc; + adapter->net_stats.rx_length_errors = adapter->stats.rlerrc; adapter->net_stats.rx_crc_errors = adapter->stats.crcerrs; adapter->net_stats.rx_frame_errors = adapter->stats.algnerrc; adapter->net_stats.rx_missed_errors = adapter->stats.mpc; /* Tx Errors */ - - adapter->net_stats.tx_errors = adapter->stats.ecol + - adapter->stats.latecol; + adapter->stats.txerrc = adapter->stats.ecol + adapter->stats.latecol; + adapter->net_stats.tx_errors = adapter->stats.txerrc; adapter->net_stats.tx_aborted_errors = adapter->stats.ecol; adapter->net_stats.tx_window_errors = adapter->stats.latecol; adapter->net_stats.tx_carrier_errors = adapter->stats.tncrs; @@ -3335,11 +3436,10 @@ e1000_update_stats(struct e1000_adapter *adapter) * e1000_intr - Interrupt Handler * @irq: interrupt number * @data: pointer to a network interface device structure - * @pt_regs: CPU registers structure **/ static irqreturn_t -e1000_intr(int irq, void *data, struct pt_regs *regs) +e1000_intr(int irq, void *data) { struct net_device *netdev = data; struct e1000_adapter *adapter = netdev_priv(netdev); @@ -3377,7 +3477,9 @@ e1000_intr(int irq, void *data, struct pt_regs *regs) rctl = E1000_READ_REG(hw, RCTL); E1000_WRITE_REG(hw, RCTL, rctl & ~E1000_RCTL_EN); } - mod_timer(&adapter->watchdog_timer, jiffies); + /* guard against interrupt when we're going down */ + if (!test_bit(__E1000_DOWN, &adapter->flags)) + mod_timer(&adapter->watchdog_timer, jiffies + 1); } #ifdef CONFIG_E1000_NAPI @@ -3515,13 +3617,14 @@ e1000_clean_tx_irq(struct e1000_adapter *adapter, tx_ring->next_to_clean = i; #define TX_WAKE_THRESHOLD 32 - if (unlikely(cleaned && netif_queue_stopped(netdev) && - netif_carrier_ok(netdev))) { - spin_lock(&tx_ring->tx_lock); - if (netif_queue_stopped(netdev) && - (E1000_DESC_UNUSED(tx_ring) >= TX_WAKE_THRESHOLD)) + if (unlikely(cleaned && netif_carrier_ok(netdev) && + E1000_DESC_UNUSED(tx_ring) >= TX_WAKE_THRESHOLD)) { + /* Make sure that anybody stopping the queue after this + * sees the new next_to_clean. + */ + smp_mb(); + if (netif_queue_stopped(netdev)) netif_wake_queue(netdev); - spin_unlock(&tx_ring->tx_lock); } if (adapter->detect_tx_hung) { @@ -3608,7 +3711,7 @@ e1000_rx_checksum(struct e1000_adapter *adapter, */ csum = ntohl(csum ^ 0xFFFF); skb->csum = csum; - skb->ip_summed = CHECKSUM_HW; + skb->ip_summed = CHECKSUM_COMPLETE; } adapter->hw_csum_good++; } @@ -3680,7 +3783,7 @@ e1000_clean_rx_irq(struct e1000_adapter *adapter, E1000_DBG("%s: Receive packet consumed multiple" " buffers\n", netdev->name); /* recycle */ - buffer_info-> skb = skb; + buffer_info->skb = skb; goto next_desc; } @@ -3711,7 +3814,6 @@ e1000_clean_rx_irq(struct e1000_adapter *adapter, netdev_alloc_skb(netdev, length + NET_IP_ALIGN); if (new_skb) { skb_reserve(new_skb, NET_IP_ALIGN); - new_skb->dev = netdev; memcpy(new_skb->data - NET_IP_ALIGN, skb->data - NET_IP_ALIGN, length + NET_IP_ALIGN); @@ -3978,13 +4080,13 @@ e1000_alloc_rx_buffers(struct e1000_adapter *adapter, buffer_info = &rx_ring->buffer_info[i]; while (cleaned_count--) { - if (!(skb = buffer_info->skb)) - skb = netdev_alloc_skb(netdev, bufsz); - else { + skb = buffer_info->skb; + if (skb) { skb_trim(skb, 0); goto map_skb; } + skb = netdev_alloc_skb(netdev, bufsz); if (unlikely(!skb)) { /* Better luck next round */ adapter->alloc_rx_buff_failed++; @@ -4009,10 +4111,10 @@ e1000_alloc_rx_buffers(struct e1000_adapter *adapter, dev_kfree_skb(skb); dev_kfree_skb(oldskb); break; /* while !buffer_info->skb */ - } else { - /* Use new allocation */ - dev_kfree_skb(oldskb); } + + /* Use new allocation */ + dev_kfree_skb(oldskb); } /* Make buffer alignment 2 beyond a 16 byte boundary * this will result in a 16 byte aligned IP header after @@ -4020,8 +4122,6 @@ e1000_alloc_rx_buffers(struct e1000_adapter *adapter, */ skb_reserve(skb, NET_IP_ALIGN); - skb->dev = netdev; - buffer_info->skb = skb; buffer_info->length = adapter->rx_buffer_len; map_skb: @@ -4135,8 +4235,6 @@ e1000_alloc_rx_buffers_ps(struct e1000_adapter *adapter, */ skb_reserve(skb, NET_IP_ALIGN); - skb->dev = netdev; - buffer_info->skb = skb; buffer_info->length = adapter->rx_ps_bsize0; buffer_info->dma = pci_map_single(pdev, skb->data, @@ -4386,13 +4484,21 @@ e1000_write_pci_cfg(struct e1000_hw *hw, uint32_t reg, uint16_t *value) pci_write_config_word(adapter->pdev, reg, *value); } -#if 0 -uint32_t -e1000_io_read(struct e1000_hw *hw, unsigned long port) +int32_t +e1000_read_pcie_cap_reg(struct e1000_hw *hw, uint32_t reg, uint16_t *value) { - return inl(port); + struct e1000_adapter *adapter = hw->back; + uint16_t cap_offset; + + cap_offset = pci_find_capability(adapter->pdev, PCI_CAP_ID_EXP); + if (!cap_offset) + return -E1000_ERR_CONFIG; + + pci_read_config_word(adapter->pdev, cap_offset + reg, value); + + return E1000_SUCCESS; } -#endif /* 0 */ + void e1000_io_write(struct e1000_hw *hw, unsigned long port, uint32_t value) @@ -4628,7 +4734,7 @@ e1000_suspend(struct pci_dev *pdev, pm_message_t state) e1000_set_multi(netdev); /* turn on all-multi mode if wake on multicast is enabled */ - if (adapter->wol & E1000_WUFC_MC) { + if (wufc & E1000_WUFC_MC) { rctl = E1000_READ_REG(&adapter->hw, RCTL); rctl |= E1000_RCTL_MPE; E1000_WRITE_REG(&adapter->hw, RCTL, rctl); @@ -4667,9 +4773,7 @@ e1000_suspend(struct pci_dev *pdev, pm_message_t state) pci_enable_wake(pdev, PCI_D3cold, 0); } - /* FIXME: this code is incorrect for PCI Express */ - if (adapter->hw.mac_type >= e1000_82540 && - adapter->hw.mac_type != e1000_ich8lan && + if (adapter->hw.mac_type < e1000_82571 && adapter->hw.media_type == e1000_media_type_copper) { manc = E1000_READ_REG(&adapter->hw, MANC); if (manc & E1000_MANC_SMBUS_EN) { @@ -4700,11 +4804,14 @@ e1000_resume(struct pci_dev *pdev) { struct net_device *netdev = pci_get_drvdata(pdev); struct e1000_adapter *adapter = netdev_priv(netdev); - uint32_t manc, ret_val; + uint32_t manc, err; pci_set_power_state(pdev, PCI_D0); e1000_pci_restore_state(adapter); - ret_val = pci_enable_device(pdev); + if ((err = pci_enable_device(pdev))) { + printk(KERN_ERR "e1000: Cannot enable PCI device from suspend\n"); + return err; + } pci_set_master(pdev); pci_enable_wake(pdev, PCI_D3hot, 0); @@ -4718,9 +4825,7 @@ e1000_resume(struct pci_dev *pdev) netif_device_attach(netdev); - /* FIXME: this code is incorrect for PCI Express */ - if (adapter->hw.mac_type >= e1000_82540 && - adapter->hw.mac_type != e1000_ich8lan && + if (adapter->hw.mac_type < e1000_82571 && adapter->hw.media_type == e1000_media_type_copper) { manc = E1000_READ_REG(&adapter->hw, MANC); manc &= ~(E1000_MANC_ARP_EN); @@ -4756,7 +4861,7 @@ e1000_netpoll(struct net_device *netdev) struct e1000_adapter *adapter = netdev_priv(netdev); disable_irq(adapter->pdev->irq); - e1000_intr(adapter->pdev->irq, netdev, NULL); + e1000_intr(adapter->pdev->irq, netdev); e1000_clean_tx_irq(adapter, adapter->tx_ring); #ifndef CONFIG_E1000_NAPI adapter->clean_rx(adapter, adapter->rx_ring); @@ -4782,6 +4887,7 @@ static pci_ers_result_t e1000_io_error_detected(struct pci_dev *pdev, pci_channe if (netif_running(netdev)) e1000_down(adapter); + pci_disable_device(pdev); /* Request a slot slot reset. */ return PCI_ERS_RESULT_NEED_RESET; @@ -4805,8 +4911,8 @@ static pci_ers_result_t e1000_io_slot_reset(struct pci_dev *pdev) } pci_set_master(pdev); - pci_enable_wake(pdev, 3, 0); - pci_enable_wake(pdev, 4, 0); /* 4 == D3 cold */ + pci_enable_wake(pdev, PCI_D3hot, 0); + pci_enable_wake(pdev, PCI_D3cold, 0); /* Perform card reset only on one instance of the card */ if (PCI_FUNC (pdev->devfn) != 0) |