diff options
Diffstat (limited to 'drivers/net/e1000e/netdev.c')
| -rw-r--r-- | drivers/net/e1000e/netdev.c | 520 |
1 files changed, 269 insertions, 251 deletions
diff --git a/drivers/net/e1000e/netdev.c b/drivers/net/e1000e/netdev.c index 0687c6a..c3105c5 100644 --- a/drivers/net/e1000e/netdev.c +++ b/drivers/net/e1000e/netdev.c @@ -1,7 +1,7 @@ /******************************************************************************* Intel PRO/1000 Linux driver - Copyright(c) 1999 - 2008 Intel Corporation. + Copyright(c) 1999 - 2009 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, @@ -65,17 +65,6 @@ static const struct e1000_info *e1000_info_tbl[] = { [board_pchlan] = &e1000_pch_info, }; -#ifdef DEBUG -/** - * e1000_get_hw_dev_name - return device name string - * used by hardware layer to print debugging information - **/ -char *e1000e_get_hw_dev_name(struct e1000_hw *hw) -{ - return hw->adapter->netdev->name; -} -#endif - /** * e1000_desc_unused - calculate if we have unused descriptors **/ @@ -167,7 +156,7 @@ static void e1000_alloc_rx_buffers(struct e1000_adapter *adapter, struct e1000_buffer *buffer_info; struct sk_buff *skb; unsigned int i; - unsigned int bufsz = adapter->rx_buffer_len + NET_IP_ALIGN; + unsigned int bufsz = adapter->rx_buffer_len; i = rx_ring->next_to_use; buffer_info = &rx_ring->buffer_info[i]; @@ -179,20 +168,13 @@ static void e1000_alloc_rx_buffers(struct e1000_adapter *adapter, goto map_skb; } - skb = netdev_alloc_skb(netdev, bufsz); + skb = netdev_alloc_skb_ip_align(netdev, bufsz); if (!skb) { /* Better luck next round */ adapter->alloc_rx_buff_failed++; break; } - /* - * Make buffer alignment 2 beyond a 16 byte boundary - * this will result in a 16 byte aligned IP header after - * the 14 byte MAC header is removed - */ - skb_reserve(skb, NET_IP_ALIGN); - buffer_info->skb = skb; map_skb: buffer_info->dma = pci_map_single(pdev, skb->data, @@ -284,21 +266,14 @@ static void e1000_alloc_rx_buffers_ps(struct e1000_adapter *adapter, cpu_to_le64(ps_page->dma); } - skb = netdev_alloc_skb(netdev, - adapter->rx_ps_bsize0 + NET_IP_ALIGN); + skb = netdev_alloc_skb_ip_align(netdev, + adapter->rx_ps_bsize0); if (!skb) { adapter->alloc_rx_buff_failed++; break; } - /* - * Make buffer alignment 2 beyond a 16 byte boundary - * this will result in a 16 byte aligned IP header after - * the 14 byte MAC header is removed - */ - skb_reserve(skb, NET_IP_ALIGN); - buffer_info->skb = skb; buffer_info->dma = pci_map_single(pdev, skb->data, adapter->rx_ps_bsize0, @@ -359,9 +334,7 @@ static void e1000_alloc_jumbo_rx_buffers(struct e1000_adapter *adapter, struct e1000_buffer *buffer_info; struct sk_buff *skb; unsigned int i; - unsigned int bufsz = 256 - - 16 /* for skb_reserve */ - - NET_IP_ALIGN; + unsigned int bufsz = 256 - 16 /* for skb_reserve */; i = rx_ring->next_to_use; buffer_info = &rx_ring->buffer_info[i]; @@ -373,19 +346,13 @@ static void e1000_alloc_jumbo_rx_buffers(struct e1000_adapter *adapter, goto check_page; } - skb = netdev_alloc_skb(netdev, bufsz); + skb = netdev_alloc_skb_ip_align(netdev, bufsz); if (unlikely(!skb)) { /* Better luck next round */ adapter->alloc_rx_buff_failed++; break; } - /* Make buffer alignment 2 beyond a 16 byte boundary - * this will result in a 16 byte aligned IP header after - * the 14 byte MAC header is removed - */ - skb_reserve(skb, NET_IP_ALIGN); - buffer_info->skb = skb; check_page: /* allocate a new page if necessary */ @@ -437,6 +404,7 @@ static bool e1000_clean_rx_irq(struct e1000_adapter *adapter, { struct net_device *netdev = adapter->netdev; struct pci_dev *pdev = adapter->pdev; + struct e1000_hw *hw = &adapter->hw; struct e1000_ring *rx_ring = adapter->rx_ring; struct e1000_rx_desc *rx_desc, *next_rxd; struct e1000_buffer *buffer_info, *next_buffer; @@ -486,8 +454,7 @@ static bool e1000_clean_rx_irq(struct e1000_adapter *adapter, * packet, also make sure the frame isn't just CRC only */ if (!(status & E1000_RXD_STAT_EOP) || (length <= 4)) { /* All receives must fit into a single buffer */ - e_dbg("%s: Receive packet consumed multiple buffers\n", - netdev->name); + e_dbg("Receive packet consumed multiple buffers\n"); /* recycle */ buffer_info->skb = skb; goto next_desc; @@ -513,9 +480,8 @@ static bool e1000_clean_rx_irq(struct e1000_adapter *adapter, */ if (length < copybreak) { struct sk_buff *new_skb = - netdev_alloc_skb(netdev, length + NET_IP_ALIGN); + netdev_alloc_skb_ip_align(netdev, length); if (new_skb) { - skb_reserve(new_skb, NET_IP_ALIGN); skb_copy_to_linear_data_offset(new_skb, -NET_IP_ALIGN, (skb->data - @@ -560,33 +526,52 @@ next_desc: adapter->total_rx_bytes += total_rx_bytes; adapter->total_rx_packets += total_rx_packets; - adapter->net_stats.rx_bytes += total_rx_bytes; - adapter->net_stats.rx_packets += total_rx_packets; + netdev->stats.rx_bytes += total_rx_bytes; + netdev->stats.rx_packets += total_rx_packets; return cleaned; } static void e1000_put_txbuf(struct e1000_adapter *adapter, struct e1000_buffer *buffer_info) { - buffer_info->dma = 0; + if (buffer_info->dma) { + if (buffer_info->mapped_as_page) + pci_unmap_page(adapter->pdev, buffer_info->dma, + buffer_info->length, PCI_DMA_TODEVICE); + else + pci_unmap_single(adapter->pdev, buffer_info->dma, + buffer_info->length, + PCI_DMA_TODEVICE); + buffer_info->dma = 0; + } if (buffer_info->skb) { - skb_dma_unmap(&adapter->pdev->dev, buffer_info->skb, - DMA_TO_DEVICE); dev_kfree_skb_any(buffer_info->skb); buffer_info->skb = NULL; } buffer_info->time_stamp = 0; } -static void e1000_print_tx_hang(struct e1000_adapter *adapter) +static void e1000_print_hw_hang(struct work_struct *work) { + struct e1000_adapter *adapter = container_of(work, + struct e1000_adapter, + print_hang_task); struct e1000_ring *tx_ring = adapter->tx_ring; unsigned int i = tx_ring->next_to_clean; unsigned int eop = tx_ring->buffer_info[i].next_to_watch; struct e1000_tx_desc *eop_desc = E1000_TX_DESC(*tx_ring, eop); + struct e1000_hw *hw = &adapter->hw; + u16 phy_status, phy_1000t_status, phy_ext_status; + u16 pci_status; + + e1e_rphy(hw, PHY_STATUS, &phy_status); + e1e_rphy(hw, PHY_1000T_STATUS, &phy_1000t_status); + e1e_rphy(hw, PHY_EXT_STATUS, &phy_ext_status); + + pci_read_config_word(adapter->pdev, PCI_STATUS, &pci_status); - /* detected Tx unit hang */ - e_err("Detected Tx Unit Hang:\n" + /* detected Hardware unit hang */ + e_err("Detected Hardware Unit Hang:\n" " TDH <%x>\n" " TDT <%x>\n" " next_to_use <%x>\n" @@ -595,7 +580,12 @@ static void e1000_print_tx_hang(struct e1000_adapter *adapter) " time_stamp <%lx>\n" " next_to_watch <%x>\n" " jiffies <%lx>\n" - " next_to_watch.status <%x>\n", + " next_to_watch.status <%x>\n" + "MAC Status <%x>\n" + "PHY Status <%x>\n" + "PHY 1000BASE-T Status <%x>\n" + "PHY Extended Status <%x>\n" + "PCI Status <%x>\n", readl(adapter->hw.hw_addr + tx_ring->head), readl(adapter->hw.hw_addr + tx_ring->tail), tx_ring->next_to_use, @@ -603,7 +593,12 @@ static void e1000_print_tx_hang(struct e1000_adapter *adapter) tx_ring->buffer_info[eop].time_stamp, eop, jiffies, - eop_desc->upper.fields.status); + eop_desc->upper.fields.status, + er32(STATUS), + phy_status, + phy_1000t_status, + phy_ext_status, + pci_status); } /** @@ -677,21 +672,23 @@ static bool e1000_clean_tx_irq(struct e1000_adapter *adapter) } if (adapter->detect_tx_hung) { - /* Detect a transmit hang in hardware, this serializes the - * check with the clearing of time_stamp and movement of i */ + /* + * Detect a transmit hang in hardware, this serializes the + * check with the clearing of time_stamp and movement of i + */ adapter->detect_tx_hung = 0; if (tx_ring->buffer_info[i].time_stamp && time_after(jiffies, tx_ring->buffer_info[i].time_stamp - + (adapter->tx_timeout_factor * HZ)) - && !(er32(STATUS) & E1000_STATUS_TXOFF)) { - e1000_print_tx_hang(adapter); + + (adapter->tx_timeout_factor * HZ)) && + !(er32(STATUS) & E1000_STATUS_TXOFF)) { + schedule_work(&adapter->print_hang_task); netif_stop_queue(netdev); } } adapter->total_tx_bytes += total_tx_bytes; adapter->total_tx_packets += total_tx_packets; - adapter->net_stats.tx_bytes += total_tx_bytes; - adapter->net_stats.tx_packets += total_tx_packets; + netdev->stats.tx_bytes += total_tx_bytes; + netdev->stats.tx_packets += total_tx_packets; return (count < tx_ring->count); } @@ -705,6 +702,7 @@ static bool e1000_clean_tx_irq(struct e1000_adapter *adapter) static bool e1000_clean_rx_irq_ps(struct e1000_adapter *adapter, int *work_done, int work_to_do) { + struct e1000_hw *hw = &adapter->hw; union e1000_rx_desc_packet_split *rx_desc, *next_rxd; struct net_device *netdev = adapter->netdev; struct pci_dev *pdev = adapter->pdev; @@ -748,8 +746,8 @@ static bool e1000_clean_rx_irq_ps(struct e1000_adapter *adapter, buffer_info->dma = 0; if (!(staterr & E1000_RXD_STAT_EOP)) { - e_dbg("%s: Packet Split buffers didn't pick up the " - "full packet\n", netdev->name); + e_dbg("Packet Split buffers didn't pick up the full " + "packet\n"); dev_kfree_skb_irq(skb); goto next_desc; } @@ -762,8 +760,8 @@ static bool e1000_clean_rx_irq_ps(struct e1000_adapter *adapter, length = le16_to_cpu(rx_desc->wb.middle.length0); if (!length) { - e_dbg("%s: Last part of the packet spanning multiple " - "descriptors\n", netdev->name); + e_dbg("Last part of the packet spanning multiple " + "descriptors\n"); dev_kfree_skb_irq(skb); goto next_desc; } @@ -871,8 +869,8 @@ next_desc: adapter->total_rx_bytes += total_rx_bytes; adapter->total_rx_packets += total_rx_packets; - adapter->net_stats.rx_bytes += total_rx_bytes; - adapter->net_stats.rx_packets += total_rx_packets; + netdev->stats.rx_bytes += total_rx_bytes; + netdev->stats.rx_packets += total_rx_packets; return cleaned; } @@ -1051,8 +1049,8 @@ next_desc: adapter->total_rx_bytes += total_rx_bytes; adapter->total_rx_packets += total_rx_packets; - adapter->net_stats.rx_bytes += total_rx_bytes; - adapter->net_stats.rx_packets += total_rx_packets; + netdev->stats.rx_bytes += total_rx_bytes; + netdev->stats.rx_packets += total_rx_packets; return cleaned; } @@ -1199,7 +1197,7 @@ static irqreturn_t e1000_intr(int irq, void *data) struct e1000_hw *hw = &adapter->hw; u32 rctl, icr = er32(ICR); - if (!icr) + if (!icr || test_bit(__E1000_DOWN, &adapter->state)) return IRQ_NONE; /* Not our interrupt */ /* @@ -1481,7 +1479,7 @@ static int e1000_request_msix(struct e1000_adapter *adapter) else memcpy(adapter->rx_ring->name, netdev->name, IFNAMSIZ); err = request_irq(adapter->msix_entries[vector].vector, - &e1000_intr_msix_rx, 0, adapter->rx_ring->name, + e1000_intr_msix_rx, 0, adapter->rx_ring->name, netdev); if (err) goto out; @@ -1494,7 +1492,7 @@ static int e1000_request_msix(struct e1000_adapter *adapter) else memcpy(adapter->tx_ring->name, netdev->name, IFNAMSIZ); err = request_irq(adapter->msix_entries[vector].vector, - &e1000_intr_msix_tx, 0, adapter->tx_ring->name, + e1000_intr_msix_tx, 0, adapter->tx_ring->name, netdev); if (err) goto out; @@ -1503,7 +1501,7 @@ static int e1000_request_msix(struct e1000_adapter *adapter) vector++; err = request_irq(adapter->msix_entries[vector].vector, - &e1000_msix_other, 0, netdev->name, netdev); + e1000_msix_other, 0, netdev->name, netdev); if (err) goto out; @@ -1534,7 +1532,7 @@ static int e1000_request_irq(struct e1000_adapter *adapter) e1000e_set_interrupt_capability(adapter); } if (adapter->flags & FLAG_MSI_ENABLED) { - err = request_irq(adapter->pdev->irq, &e1000_intr_msi, 0, + err = request_irq(adapter->pdev->irq, e1000_intr_msi, 0, netdev->name, netdev); if (!err) return err; @@ -1544,7 +1542,7 @@ static int e1000_request_irq(struct e1000_adapter *adapter) adapter->int_mode = E1000E_INT_MODE_LEGACY; } - err = request_irq(adapter->pdev->irq, &e1000_intr, IRQF_SHARED, + err = request_irq(adapter->pdev->irq, e1000_intr, IRQF_SHARED, netdev->name, netdev); if (err) e_err("Unable to allocate interrupt, Error: %d\n", err); @@ -2040,11 +2038,14 @@ static void e1000_vlan_rx_add_vid(struct net_device *netdev, u16 vid) E1000_MNG_DHCP_COOKIE_STATUS_VLAN) && (vid == adapter->mng_vlan_id)) return; + /* add VID to filter table */ - index = (vid >> 5) & 0x7F; - vfta = E1000_READ_REG_ARRAY(hw, E1000_VFTA, index); - vfta |= (1 << (vid & 0x1F)); - e1000e_write_vfta(hw, index, vfta); + if (adapter->flags & FLAG_HAS_HW_VLAN_FILTER) { + index = (vid >> 5) & 0x7F; + vfta = E1000_READ_REG_ARRAY(hw, E1000_VFTA, index); + vfta |= (1 << (vid & 0x1F)); + hw->mac.ops.write_vfta(hw, index, vfta); + } } static void e1000_vlan_rx_kill_vid(struct net_device *netdev, u16 vid) @@ -2069,10 +2070,12 @@ static void e1000_vlan_rx_kill_vid(struct net_device *netdev, u16 vid) } /* remove VID from filter table */ - index = (vid >> 5) & 0x7F; - vfta = E1000_READ_REG_ARRAY(hw, E1000_VFTA, index); - vfta &= ~(1 << (vid & 0x1F)); - e1000e_write_vfta(hw, index, vfta); + if (adapter->flags & FLAG_HAS_HW_VLAN_FILTER) { + index = (vid >> 5) & 0x7F; + vfta = E1000_READ_REG_ARRAY(hw, E1000_VFTA, index); + vfta &= ~(1 << (vid & 0x1F)); + hw->mac.ops.write_vfta(hw, index, vfta); + } } static void e1000_update_mng_vlan(struct e1000_adapter *adapter) @@ -2464,8 +2467,6 @@ static void e1000_configure_rx(struct e1000_adapter *adapter) ew32(ITR, 1000000000 / (adapter->itr * 256)); ctrl_ext = er32(CTRL_EXT); - /* Reset delay timers after every interrupt */ - ctrl_ext |= E1000_CTRL_EXT_INT_TIMER_CLR; /* Auto-Mask interrupts upon ICR access */ ctrl_ext |= E1000_CTRL_EXT_IAME; ew32(IAM, 0xffffffff); @@ -2507,21 +2508,23 @@ static void e1000_configure_rx(struct e1000_adapter *adapter) * packet size is equal or larger than the specified value (in 8 byte * units), e.g. using jumbo frames when setting to E1000_ERT_2048 */ - if ((adapter->flags & FLAG_HAS_ERT) && - (adapter->netdev->mtu > ETH_DATA_LEN)) { - u32 rxdctl = er32(RXDCTL(0)); - ew32(RXDCTL(0), rxdctl | 0x3); - ew32(ERT, E1000_ERT_2048 | (1 << 13)); - /* - * With jumbo frames and early-receive enabled, excessive - * C4->C2 latencies result in dropped transactions. - */ - pm_qos_update_requirement(PM_QOS_CPU_DMA_LATENCY, - e1000e_driver_name, 55); - } else { - pm_qos_update_requirement(PM_QOS_CPU_DMA_LATENCY, - e1000e_driver_name, - PM_QOS_DEFAULT_VALUE); + if (adapter->flags & FLAG_HAS_ERT) { + if (adapter->netdev->mtu > ETH_DATA_LEN) { + u32 rxdctl = er32(RXDCTL(0)); + ew32(RXDCTL(0), rxdctl | 0x3); + ew32(ERT, E1000_ERT_2048 | (1 << 13)); + /* + * With jumbo frames and early-receive enabled, + * excessive C-state transition latencies result in + * dropped transactions. + */ + pm_qos_update_requirement(PM_QOS_CPU_DMA_LATENCY, + adapter->netdev->name, 55); + } else { + pm_qos_update_requirement(PM_QOS_CPU_DMA_LATENCY, + adapter->netdev->name, + PM_QOS_DEFAULT_VALUE); + } } /* Enable Receives */ @@ -2645,18 +2648,8 @@ static void e1000_configure(struct e1000_adapter *adapter) **/ void e1000e_power_up_phy(struct e1000_adapter *adapter) { - u16 mii_reg = 0; - - /* Just clear the power down bit to wake the phy back up */ - if (adapter->hw.phy.media_type == e1000_media_type_copper) { - /* - * According to the manual, the phy will retain its - * settings across a power-down/up cycle - */ - e1e_rphy(&adapter->hw, PHY_CONTROL, &mii_reg); - mii_reg &= ~MII_CR_POWER_DOWN; - e1e_wphy(&adapter->hw, PHY_CONTROL, mii_reg); - } + if (adapter->hw.phy.ops.power_up) + adapter->hw.phy.ops.power_up(&adapter->hw); adapter->hw.mac.ops.setup_link(&adapter->hw); } @@ -2664,35 +2657,17 @@ void e1000e_power_up_phy(struct e1000_adapter *adapter) /** * e1000_power_down_phy - Power down the PHY * - * Power down the PHY so no link is implied when interface is down - * The PHY cannot be powered down is management or WoL is active + * Power down the PHY so no link is implied when interface is down. + * The PHY cannot be powered down if management or WoL is active. */ static void e1000_power_down_phy(struct e1000_adapter *adapter) { - struct e1000_hw *hw = &adapter->hw; - u16 mii_reg; - /* WoL is enabled */ if (adapter->wol) return; - /* non-copper PHY? */ - if (adapter->hw.phy.media_type != e1000_media_type_copper) - return; - - /* reset is blocked because of a SoL/IDER session */ - if (e1000e_check_mng_mode(hw) || e1000_check_reset_block(hw)) - return; - - /* manageability (AMT) is enabled */ - if (er32(MANC) & E1000_MANC_SMBUS_EN) - return; - - /* power down the PHY */ - e1e_rphy(hw, PHY_CONTROL, &mii_reg); - mii_reg |= MII_CR_POWER_DOWN; - e1e_wphy(hw, PHY_CONTROL, mii_reg); - mdelay(1); + if (adapter->hw.phy.ops.power_down) + adapter->hw.phy.ops.power_down(&adapter->hw); } /** @@ -2769,25 +2744,38 @@ void e1000e_reset(struct e1000_adapter *adapter) /* * flow control settings * - * The high water mark must be low enough to fit two full frame + * The high water mark must be low enough to fit one full frame * (or the size used for early receive) above it in the Rx FIFO. * Set it to the lower of: * - 90% of the Rx FIFO size, and * - the full Rx FIFO size minus the early receive size (for parts * with ERT support assuming ERT set to E1000_ERT_2048), or - * - the full Rx FIFO size minus two full frames + * - the full Rx FIFO size minus one full frame */ - if ((adapter->flags & FLAG_HAS_ERT) && - (adapter->netdev->mtu > ETH_DATA_LEN)) - hwm = min(((pba << 10) * 9 / 10), - ((pba << 10) - (E1000_ERT_2048 << 3))); - else - hwm = min(((pba << 10) * 9 / 10), - ((pba << 10) - (2 * adapter->max_frame_size))); + if (hw->mac.type == e1000_pchlan) { + /* + * Workaround PCH LOM adapter hangs with certain network + * loads. If hangs persist, try disabling Tx flow control. + */ + if (adapter->netdev->mtu > ETH_DATA_LEN) { + fc->high_water = 0x3500; + fc->low_water = 0x1500; + } else { + fc->high_water = 0x5000; + fc->low_water = 0x3000; + } + } else { + if ((adapter->flags & FLAG_HAS_ERT) && + (adapter->netdev->mtu > ETH_DATA_LEN)) + hwm = min(((pba << 10) * 9 / 10), + ((pba << 10) - (E1000_ERT_2048 << 3))); + else + hwm = min(((pba << 10) * 9 / 10), + ((pba << 10) - adapter->max_frame_size)); - fc->high_water = hwm & E1000_FCRTH_RTH; /* 8-byte granularity */ - fc->low_water = (fc->high_water - (2 * adapter->max_frame_size)); - fc->low_water &= E1000_FCRTL_RTL; /* 8-byte granularity */ + fc->high_water = hwm & E1000_FCRTH_RTH; /* 8-byte granularity */ + fc->low_water = fc->high_water - 8; + } if (adapter->flags & FLAG_DISABLE_FC_PAUSE_TIME) fc->pause_time = 0xFFFF; @@ -2813,6 +2801,10 @@ void e1000e_reset(struct e1000_adapter *adapter) if (mac->ops.init_hw(hw)) e_err("Hardware Error\n"); + /* additional part of the flow-control workaround above */ + if (hw->mac.type == e1000_pchlan) + ew32(FCRTV_PCH, 0x1000); + e1000_update_mng_vlan(adapter); /* Enable h/w to recognize an 802.1Q VLAN Ethernet packet */ @@ -2839,6 +2831,12 @@ int e1000e_up(struct e1000_adapter *adapter) { struct e1000_hw *hw = &adapter->hw; + /* DMA latency requirement to workaround early-receive/jumbo issue */ + if (adapter->flags & FLAG_HAS_ERT) + pm_qos_add_requirement(PM_QOS_CPU_DMA_LATENCY, + adapter->netdev->name, + PM_QOS_DEFAULT_VALUE); + /* hardware has been reset, we need to reload some things */ e1000_configure(adapter); @@ -2899,6 +2897,10 @@ void e1000e_down(struct e1000_adapter *adapter) e1000_clean_tx_ring(adapter); e1000_clean_rx_ring(adapter); + if (adapter->flags & FLAG_HAS_ERT) + pm_qos_remove_requirement(PM_QOS_CPU_DMA_LATENCY, + adapter->netdev->name); + /* * TODO: for power management, we could drop the link and * pci_disable_device here. @@ -2956,7 +2958,7 @@ static irqreturn_t e1000_intr_msi_test(int irq, void *data) struct e1000_hw *hw = &adapter->hw; u32 icr = er32(ICR); - e_dbg("%s: icr is %08X\n", netdev->name, icr); + e_dbg("icr is %08X\n", icr); if (icr & E1000_ICR_RXSEQ) { adapter->flags &= ~FLAG_MSI_TEST_FAILED; wmb(); @@ -2993,7 +2995,7 @@ static int e1000_test_msi_interrupt(struct e1000_adapter *adapter) if (err) goto msi_test_failed; - err = request_irq(adapter->pdev->irq, &e1000_intr_msi_test, 0, + err = request_irq(adapter->pdev->irq, e1000_intr_msi_test, 0, netdev->name, netdev); if (err) { pci_disable_msi(adapter->pdev); @@ -3026,7 +3028,7 @@ static int e1000_test_msi_interrupt(struct e1000_adapter *adapter) goto msi_test_failed; /* okay so the test worked, restore settings */ - e_dbg("%s: MSI interrupt test succeeded!\n", netdev->name); + e_dbg("MSI interrupt test succeeded!\n"); msi_test_failed: e1000e_set_interrupt_capability(adapter); e1000_request_irq(adapter); @@ -3287,6 +3289,7 @@ static void e1000_update_phy_info(unsigned long data) **/ void e1000e_update_stats(struct e1000_adapter *adapter) { + struct net_device *netdev = adapter->netdev; struct e1000_hw *hw = &adapter->hw; struct pci_dev *pdev = adapter->pdev; u16 phy_data; @@ -3381,8 +3384,8 @@ void e1000e_update_stats(struct e1000_adapter *adapter) adapter->stats.tsctfc += er32(TSCTFC); /* Fill out the OS statistics structure */ - adapter->net_stats.multicast = adapter->stats.mprc; - adapter->net_stats.collisions = adapter->stats.colc; + netdev->stats.multicast = adapter->stats.mprc; + netdev->stats.collisions = adapter->stats.colc; /* Rx Errors */ @@ -3390,22 +3393,22 @@ void e1000e_update_stats(struct e1000_adapter *adapter) * RLEC on some newer hardware can be incorrect so build * our own version based on RUC and ROC */ - adapter->net_stats.rx_errors = adapter->stats.rxerrc + + netdev->stats.rx_errors = adapter->stats.rxerrc + adapter->stats.crcerrs + adapter->stats.algnerrc + adapter->stats.ruc + adapter->stats.roc + adapter->stats.cexterr; - adapter->net_stats.rx_length_errors = adapter->stats.ruc + + netdev->stats.rx_length_errors = adapter->stats.ruc + adapter->stats.roc; - 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; + netdev->stats.rx_crc_errors = adapter->stats.crcerrs; + netdev->stats.rx_frame_errors = adapter->stats.algnerrc; + netdev->stats.rx_missed_errors = adapter->stats.mpc; /* Tx Errors */ - adapter->net_stats.tx_errors = adapter->stats.ecol + + netdev->stats.tx_errors = adapter->stats.ecol + adapter->stats.latecol; - 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; + netdev->stats.tx_aborted_errors = adapter->stats.ecol; + netdev->stats.tx_window_errors = adapter->stats.latecol; + netdev->stats.tx_carrier_errors = adapter->stats.tncrs; /* Tx Dropped needs to be maintained elsewhere */ @@ -3610,7 +3613,7 @@ static void e1000_watchdog_task(struct work_struct *work) case SPEED_100: txb2b = 0; netdev->tx_queue_len = 100; - /* maybe add some timeout factor ? */ + adapter->tx_timeout_factor = 10; break; } @@ -3759,68 +3762,64 @@ static int e1000_tso(struct e1000_adapter *adapter, u8 ipcss, ipcso, tucss, tucso, hdr_len; int err; - if (skb_is_gso(skb)) { - if (skb_header_cloned(skb)) { - err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC); - if (err) - return err; - } + if (!skb_is_gso(skb)) + return 0; - hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb); - mss = skb_shinfo(skb)->gso_size; - if (skb->protocol == htons(ETH_P_IP)) { - struct iphdr *iph = ip_hdr(skb); - iph->tot_len = 0; - iph->check = 0; - tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr, - iph->daddr, 0, - IPPROTO_TCP, - 0); - cmd_length = E1000_TXD_CMD_IP; - ipcse = skb_transport_offset(skb) - 1; - } else if (skb_shinfo(skb)->gso_type == SKB_GSO_TCPV6) { - ipv6_hdr(skb)->payload_len = 0; - tcp_hdr(skb)->check = - ~csum_ipv6_magic(&ipv6_hdr(skb)->saddr, - &ipv6_hdr(skb)->daddr, - 0, IPPROTO_TCP, 0); - ipcse = 0; - } - ipcss = skb_network_offset(skb); - ipcso = (void *)&(ip_hdr(skb)->check) - (void *)skb->data; - tucss = skb_transport_offset(skb); - tucso = (void *)&(tcp_hdr(skb)->check) - (void *)skb->data; - tucse = 0; + if (skb_header_cloned(skb)) { + err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC); + if (err) + return err; + } - cmd_length |= (E1000_TXD_CMD_DEXT | E1000_TXD_CMD_TSE | - E1000_TXD_CMD_TCP | (skb->len - (hdr_len))); + hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb); + mss = skb_shinfo(skb)->gso_size; + if (skb->protocol == htons(ETH_P_IP)) { + struct iphdr *iph = ip_hdr(skb); + iph->tot_len = 0; + iph->check = 0; + tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr, iph->daddr, + 0, IPPROTO_TCP, 0); + cmd_length = E1000_TXD_CMD_IP; + ipcse = skb_transport_offset(skb) - 1; + } else if (skb_shinfo(skb)->gso_type == SKB_GSO_TCPV6) { + ipv6_hdr(skb)->payload_len = 0; + tcp_hdr(skb)->check = ~csum_ipv6_magic(&ipv6_hdr(skb)->saddr, + &ipv6_hdr(skb)->daddr, + 0, IPPROTO_TCP, 0); + ipcse = 0; + } + ipcss = skb_network_offset(skb); + ipcso = (void *)&(ip_hdr(skb)->check) - (void *)skb->data; + tucss = skb_transport_offset(skb); + tucso = (void *)&(tcp_hdr(skb)->check) - (void *)skb->data; + tucse = 0; - i = tx_ring->next_to_use; - context_desc = E1000_CONTEXT_DESC(*tx_ring, i); - buffer_info = &tx_ring->buffer_info[i]; + cmd_length |= (E1000_TXD_CMD_DEXT | E1000_TXD_CMD_TSE | + E1000_TXD_CMD_TCP | (skb->len - (hdr_len))); - context_desc->lower_setup.ip_fields.ipcss = ipcss; - context_desc->lower_setup.ip_fields.ipcso = ipcso; - context_desc->lower_setup.ip_fields.ipcse = cpu_to_le16(ipcse); - context_desc->upper_setup.tcp_fields.tucss = tucss; - context_desc->upper_setup.tcp_fields.tucso = tucso; - context_desc->upper_setup.tcp_fields.tucse = cpu_to_le16(tucse); - context_desc->tcp_seg_setup.fields.mss = cpu_to_le16(mss); - context_desc->tcp_seg_setup.fields.hdr_len = hdr_len; - context_desc->cmd_and_length = cpu_to_le32(cmd_length); + i = tx_ring->next_to_use; + context_desc = E1000_CONTEXT_DESC(*tx_ring, i); + buffer_info = &tx_ring->buffer_info[i]; - buffer_info->time_stamp = jiffies; - buffer_info->next_to_watch = i; + context_desc->lower_setup.ip_fields.ipcss = ipcss; + context_desc->lower_setup.ip_fields.ipcso = ipcso; + context_desc->lower_setup.ip_fields.ipcse = cpu_to_le16(ipcse); + context_desc->upper_setup.tcp_fields.tucss = tucss; + context_desc->upper_setup.tcp_fields.tucso = tucso; + context_desc->upper_setup.tcp_fields.tucse = cpu_to_le16(tucse); + context_desc->tcp_seg_setup.fields.mss = cpu_to_le16(mss); + context_desc->tcp_seg_setup.fields.hdr_len = hdr_len; + context_desc->cmd_and_length = cpu_to_le32(cmd_length); - i++; - if (i == tx_ring->count) - i = 0; - tx_ring->next_to_use = i; + buffer_info->time_stamp = jiffies; + buffer_info->next_to_watch = i; - return 1; - } + i++; + if (i == tx_ring->count) + i = 0; + tx_ring->next_to_use = i; - return 0; + return 1; } static bool e1000_tx_csum(struct e1000_adapter *adapter, struct sk_buff *skb) @@ -3892,23 +3891,14 @@ static int e1000_tx_map(struct e1000_adapter *adapter, unsigned int mss) { struct e1000_ring *tx_ring = adapter->tx_ring; + struct pci_dev *pdev = adapter->pdev; struct e1000_buffer *buffer_info; unsigned int len = skb_headlen(skb); - unsigned int offset, size, count = 0, i; + unsigned int offset = 0, size, count = 0, i; unsigned int f; - dma_addr_t *map; i = tx_ring->next_to_use; - if (skb_dma_map(&adapter->pdev->dev, skb, DMA_TO_DEVICE)) { - dev_err(&adapter->pdev->dev, "TX DMA map failed\n"); - adapter->tx_dma_failed++; - return 0; - } - - map = skb_shinfo(skb)->dma_maps; - offset = 0; - while (len) { buffer_info = &tx_ring->buffer_info[i]; size = min(len, max_per_txd); @@ -3916,11 +3906,15 @@ static int e1000_tx_map(struct e1000_adapter *adapter, buffer_info->length = size; buffer_info->time_stamp = jiffies; buffer_info->next_to_watch = i; - buffer_info->dma = skb_shinfo(skb)->dma_head + offset; - count++; + buffer_info->dma = pci_map_single(pdev, skb->data + offset, + size, PCI_DMA_TODEVICE); + buffer_info->mapped_as_page = false; + if (pci_dma_mapping_error(pdev, buffer_info->dma)) + goto dma_error; len -= size; offset += size; + count++; if (len) { i++; @@ -3934,7 +3928,7 @@ static int e1000_tx_map(struct e1000_adapter *adapter, frag = &skb_shinfo(skb)->frags[f]; len = frag->size; - offset = 0; + offset = frag->page_offset; while (len) { i++; @@ -3947,7 +3941,12 @@ static int e1000_tx_map(struct e1000_adapter *adapter, buffer_info->length = size; buffer_info->time_stamp = jiffies; buffer_info->next_to_watch = i; - buffer_info->dma = map[f] + offset; + buffer_info->dma = pci_map_page(pdev, frag->page, + offset, size, + PCI_DMA_TODEVICE); + buffer_info->mapped_as_page = true; + if (pci_dma_mapping_error(pdev, buffer_info->dma)) + goto dma_error; len -= size; offset += size; @@ -3959,6 +3958,22 @@ static int e1000_tx_map(struct e1000_adapter *adapter, tx_ring->buffer_info[first].next_to_watch = i; return count; + +dma_error: + dev_err(&pdev->dev, "TX DMA map failed\n"); + buffer_info->dma = 0; + count--; + + while (count >= 0) { + count--; + i--; + if (i < 0) + i += tx_ring->count; + buffer_info = &tx_ring->buffer_info[i]; + e1000_put_txbuf(adapter, buffer_info);; + } + + return 0; } static void e1000_tx_queue(struct e1000_adapter *adapter, @@ -4031,8 +4046,8 @@ static int e1000_transfer_dhcp_info(struct e1000_adapter *adapter, u16 length, offset; if (vlan_tx_tag_present(skb)) { - if (!((vlan_tx_tag_get(skb) == adapter->hw.mng_cookie.vlan_id) - && (adapter->hw.mng_cookie.status & + if (!((vlan_tx_tag_get(skb) == adapter->hw.mng_cookie.vlan_id) && + (adapter->hw.mng_cookie.status & E1000_MNG_DHCP_COOKIE_STATUS_VLAN))) return 0; } @@ -4254,10 +4269,8 @@ static void e1000_reset_task(struct work_struct *work) **/ static struct net_device_stats *e1000_get_stats(struct net_device *netdev) { - struct e1000_adapter *adapter = netdev_priv(netdev); - /* only return the current stats */ - return &adapter->net_stats; + return &netdev->stats; } /** @@ -4288,8 +4301,10 @@ static int e1000_change_mtu(struct net_device *netdev, int new_mtu) while (test_and_set_bit(__E1000_RESETTING, &adapter->state)) msleep(1); - /* e1000e_down has a dependency on max_frame_size */ + /* e1000e_down -> e1000e_reset dependent on max_frame_size & mtu */ adapter->max_frame_size = max_frame; + e_info("changing MTU from %d to %d\n", netdev->mtu, new_mtu); + netdev->mtu = new_mtu; if (netif_running(netdev)) e1000e_down(adapter); @@ -4319,9 +4334,6 @@ static int e1000_change_mtu(struct net_device *netdev, int new_mtu) adapter->rx_buffer_len = ETH_FRAME_LEN + VLAN_HLEN + ETH_FCS_LEN; - e_info("changing MTU from %d to %d\n", netdev->mtu, new_mtu); - netdev->mtu = new_mtu; - if (netif_running(netdev)) e1000e_up(adapter); else @@ -4346,6 +4358,8 @@ static int e1000_mii_ioctl(struct net_device *netdev, struct ifreq *ifr, data->phy_id = adapter->hw.phy.addr; break; case SIOCGMIIREG: + e1000_phy_read_status(adapter); + switch (data->reg_num & 0x1F) { case MII_BMCR: data->val_out = adapter->phy_regs.bmcr; @@ -4453,7 +4467,7 @@ static int e1000_init_phy_wakeup(struct e1000_adapter *adapter, u32 wufc) e1e_wphy(&adapter->hw, BM_WUC, E1000_WUC_PME_EN); /* activate PHY wakeup */ - retval = hw->phy.ops.acquire_phy(hw); + retval = hw->phy.ops.acquire(hw); if (retval) { e_err("Could not acquire PHY\n"); return retval; @@ -4470,7 +4484,7 @@ static int e1000_init_phy_wakeup(struct e1000_adapter *adapter, u32 wufc) if (retval) e_err("Could not set PHY Host Wakeup bit\n"); out: - hw->phy.ops.release_phy(hw); + hw->phy.ops.release(hw); return retval; } @@ -5144,6 +5158,7 @@ static int __devinit e1000_probe(struct pci_dev *pdev, INIT_WORK(&adapter->watchdog_task, e1000_watchdog_task); INIT_WORK(&adapter->downshift_task, e1000e_downshift_workaround); INIT_WORK(&adapter->update_phy_task, e1000e_update_phy_task); + INIT_WORK(&adapter->print_hang_task, e1000_print_hw_hang); /* Initialize link parameters. User can change them with ethtool */ adapter->hw.mac.autoneg = 1; @@ -5267,19 +5282,24 @@ static void __devexit e1000_remove(struct pci_dev *pdev) del_timer_sync(&adapter->watchdog_timer); del_timer_sync(&adapter->phy_info_timer); + cancel_work_sync(&adapter->reset_task); + cancel_work_sync(&adapter->watchdog_task); + cancel_work_sync(&adapter->downshift_task); + cancel_work_sync(&adapter->update_phy_task); + cancel_work_sync(&adapter->print_hang_task); flush_scheduled_work(); + if (!(netdev->flags & IFF_UP)) + e1000_power_down_phy(adapter); + + unregister_netdev(netdev); + /* * Release control of h/w to f/w. If f/w is AMT enabled, this * would have already happened in close and is redundant. */ e1000_release_hw_control(adapter); - unregister_netdev(netdev); - - if (!e1000_check_reset_block(&adapter->hw)) - e1000_phy_hw_reset(&adapter->hw); - e1000e_reset_interrupt_capability(adapter); kfree(adapter->tx_ring); kfree(adapter->rx_ring); @@ -5345,6 +5365,7 @@ static struct pci_device_id e1000_pci_tbl[] = { { PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH8_IGP_C), board_ich8lan }, { PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH8_IGP_M), board_ich8lan }, { PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH8_IGP_M_AMT), board_ich8lan }, + { PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH8_82567V_3), board_ich8lan }, { PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH9_IFE), board_ich9lan }, { PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH9_IFE_G), board_ich9lan }, @@ -5398,12 +5419,10 @@ static int __init e1000_init_module(void) int ret; printk(KERN_INFO "%s: Intel(R) PRO/1000 Network Driver - %s\n", e1000e_driver_name, e1000e_driver_version); - printk(KERN_INFO "%s: Copyright (c) 1999-2008 Intel Corporation.\n", + printk(KERN_INFO "%s: Copyright (c) 1999 - 2009 Intel Corporation.\n", e1000e_driver_name); ret = pci_register_driver(&e1000_driver); - pm_qos_add_requirement(PM_QOS_CPU_DMA_LATENCY, e1000e_driver_name, - PM_QOS_DEFAULT_VALUE); - + return ret; } module_init(e1000_init_module); @@ -5417,7 +5436,6 @@ module_init(e1000_init_module); static void __exit e1000_exit_module(void) { pci_unregister_driver(&e1000_driver); - pm_qos_remove_requirement(PM_QOS_CPU_DMA_LATENCY, e1000e_driver_name); } module_exit(e1000_exit_module); |
