diff options
Diffstat (limited to 'drivers/net/igb/igb_main.c')
| -rw-r--r-- | drivers/net/igb/igb_main.c | 403 |
1 files changed, 222 insertions, 181 deletions
diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c index 20d27e622ec..022794e579c 100644 --- a/drivers/net/igb/igb_main.c +++ b/drivers/net/igb/igb_main.c @@ -42,6 +42,7 @@ #include <linux/delay.h> #include <linux/interrupt.h> #include <linux/if_ether.h> +#include <linux/aer.h> #ifdef CONFIG_IGB_DCA #include <linux/dca.h> #endif @@ -76,8 +77,6 @@ static int igb_setup_all_tx_resources(struct igb_adapter *); static int igb_setup_all_rx_resources(struct igb_adapter *); static void igb_free_all_tx_resources(struct igb_adapter *); static void igb_free_all_rx_resources(struct igb_adapter *); -static void igb_free_tx_resources(struct igb_ring *); -static void igb_free_rx_resources(struct igb_ring *); void igb_update_stats(struct igb_adapter *); static int igb_probe(struct pci_dev *, const struct pci_device_id *); static void __devexit igb_remove(struct pci_dev *pdev); @@ -232,6 +231,40 @@ static void __exit igb_exit_module(void) module_exit(igb_exit_module); +#define Q_IDX_82576(i) (((i & 0x1) << 3) + (i >> 1)) +/** + * igb_cache_ring_register - Descriptor ring to register mapping + * @adapter: board private structure to initialize + * + * Once we know the feature-set enabled for the device, we'll cache + * the register offset the descriptor ring is assigned to. + **/ +static void igb_cache_ring_register(struct igb_adapter *adapter) +{ + int i; + + switch (adapter->hw.mac.type) { + case e1000_82576: + /* The queues are allocated for virtualization such that VF 0 + * is allocated queues 0 and 8, VF 1 queues 1 and 9, etc. + * In order to avoid collision we start at the first free queue + * and continue consuming queues in the same sequence + */ + for (i = 0; i < adapter->num_rx_queues; i++) + adapter->rx_ring[i].reg_idx = Q_IDX_82576(i); + for (i = 0; i < adapter->num_tx_queues; i++) + adapter->tx_ring[i].reg_idx = Q_IDX_82576(i); + break; + case e1000_82575: + default: + for (i = 0; i < adapter->num_rx_queues; i++) + adapter->rx_ring[i].reg_idx = i; + for (i = 0; i < adapter->num_tx_queues; i++) + adapter->tx_ring[i].reg_idx = i; + break; + } +} + /** * igb_alloc_queues - Allocate memory for all rings * @adapter: board private structure to initialize @@ -259,11 +292,13 @@ static int igb_alloc_queues(struct igb_adapter *adapter) for (i = 0; i < adapter->num_tx_queues; i++) { struct igb_ring *ring = &(adapter->tx_ring[i]); + ring->count = adapter->tx_ring_count; ring->adapter = adapter; ring->queue_index = i; } for (i = 0; i < adapter->num_rx_queues; i++) { struct igb_ring *ring = &(adapter->rx_ring[i]); + ring->count = adapter->rx_ring_count; ring->adapter = adapter; ring->queue_index = i; ring->itr_register = E1000_ITR; @@ -271,6 +306,8 @@ static int igb_alloc_queues(struct igb_adapter *adapter) /* set a default napi handler for each rx_ring */ netif_napi_add(adapter->netdev, &ring->napi, igb_poll, 64); } + + igb_cache_ring_register(adapter); return 0; } @@ -311,36 +348,36 @@ static void igb_assign_vector(struct igb_adapter *adapter, int rx_queue, array_wr32(E1000_MSIXBM(0), msix_vector, msixbm); break; case e1000_82576: - /* The 82576 uses a table-based method for assigning vectors. + /* 82576 uses a table-based method for assigning vectors. Each queue has a single entry in the table to which we write a vector number along with a "valid" bit. Sadly, the layout of the table is somewhat counterintuitive. */ if (rx_queue > IGB_N0_QUEUE) { - index = (rx_queue & 0x7); + index = (rx_queue >> 1); ivar = array_rd32(E1000_IVAR0, index); - if (rx_queue < 8) { - /* vector goes into low byte of register */ - ivar = ivar & 0xFFFFFF00; - ivar |= msix_vector | E1000_IVAR_VALID; - } else { + if (rx_queue & 0x1) { /* vector goes into third byte of register */ ivar = ivar & 0xFF00FFFF; ivar |= (msix_vector | E1000_IVAR_VALID) << 16; + } else { + /* vector goes into low byte of register */ + ivar = ivar & 0xFFFFFF00; + ivar |= msix_vector | E1000_IVAR_VALID; } adapter->rx_ring[rx_queue].eims_value= 1 << msix_vector; array_wr32(E1000_IVAR0, index, ivar); } if (tx_queue > IGB_N0_QUEUE) { - index = (tx_queue & 0x7); + index = (tx_queue >> 1); ivar = array_rd32(E1000_IVAR0, index); - if (tx_queue < 8) { - /* vector goes into second byte of register */ - ivar = ivar & 0xFFFF00FF; - ivar |= (msix_vector | E1000_IVAR_VALID) << 8; - } else { + if (tx_queue & 0x1) { /* vector goes into high byte of register */ ivar = ivar & 0x00FFFFFF; ivar |= (msix_vector | E1000_IVAR_VALID) << 24; + } else { + /* vector goes into second byte of register */ + ivar = ivar & 0xFFFF00FF; + ivar |= (msix_vector | E1000_IVAR_VALID) << 8; } adapter->tx_ring[tx_queue].eims_value= 1 << msix_vector; array_wr32(E1000_IVAR0, index, ivar); @@ -445,7 +482,7 @@ static int igb_request_msix(struct igb_adapter *adapter) for (i = 0; i < adapter->num_tx_queues; i++) { struct igb_ring *ring = &(adapter->tx_ring[i]); - sprintf(ring->name, "%s-tx%d", netdev->name, i); + sprintf(ring->name, "%s-tx-%d", netdev->name, i); err = request_irq(adapter->msix_entries[vector].vector, &igb_msix_tx, 0, ring->name, &(adapter->tx_ring[i])); @@ -458,7 +495,7 @@ static int igb_request_msix(struct igb_adapter *adapter) for (i = 0; i < adapter->num_rx_queues; i++) { struct igb_ring *ring = &(adapter->rx_ring[i]); if (strlen(netdev->name) < (IFNAMSIZ - 5)) - sprintf(ring->name, "%s-rx%d", netdev->name, i); + sprintf(ring->name, "%s-rx-%d", netdev->name, i); else memcpy(ring->name, netdev->name, IFNAMSIZ); err = request_irq(adapter->msix_entries[vector].vector, @@ -931,8 +968,7 @@ void igb_reset(struct igb_adapter *adapter) wr32(E1000_VET, ETHERNET_IEEE_VLAN_TYPE); igb_reset_adaptive(&adapter->hw); - if (adapter->hw.phy.ops.get_phy_info) - adapter->hw.phy.ops.get_phy_info(&adapter->hw); + igb_get_phy_info(&adapter->hw); } /** @@ -950,6 +986,25 @@ static int igb_is_need_ioport(struct pci_dev *pdev) } } +static const struct net_device_ops igb_netdev_ops = { + .ndo_open = igb_open, + .ndo_stop = igb_close, + .ndo_start_xmit = igb_xmit_frame_adv, + .ndo_get_stats = igb_get_stats, + .ndo_set_multicast_list = igb_set_multi, + .ndo_set_mac_address = igb_set_mac, + .ndo_change_mtu = igb_change_mtu, + .ndo_do_ioctl = igb_ioctl, + .ndo_tx_timeout = igb_tx_timeout, + .ndo_validate_addr = eth_validate_addr, + .ndo_vlan_rx_register = igb_vlan_rx_register, + .ndo_vlan_rx_add_vid = igb_vlan_rx_add_vid, + .ndo_vlan_rx_kill_vid = igb_vlan_rx_kill_vid, +#ifdef CONFIG_NET_POLL_CONTROLLER + .ndo_poll_controller = igb_netpoll, +#endif +}; + /** * igb_probe - Device Initialization Routine * @pdev: PCI device information struct @@ -1031,6 +1086,13 @@ static int __devinit igb_probe(struct pci_dev *pdev, if (err) goto err_pci_reg; + err = pci_enable_pcie_error_reporting(pdev); + if (err) { + dev_err(&pdev->dev, "pci_enable_pcie_error_reporting failed " + "0x%x\n", err); + /* non-fatal, continue */ + } + pci_set_master(pdev); pci_save_state(pdev); @@ -1059,23 +1121,9 @@ static int __devinit igb_probe(struct pci_dev *pdev, if (!adapter->hw.hw_addr) goto err_ioremap; - netdev->open = &igb_open; - netdev->stop = &igb_close; - netdev->get_stats = &igb_get_stats; - netdev->set_multicast_list = &igb_set_multi; - netdev->set_mac_address = &igb_set_mac; - netdev->change_mtu = &igb_change_mtu; - netdev->do_ioctl = &igb_ioctl; + netdev->netdev_ops = &igb_netdev_ops; igb_set_ethtool_ops(netdev); - netdev->tx_timeout = &igb_tx_timeout; netdev->watchdog_timeo = 5 * HZ; - netdev->vlan_rx_register = igb_vlan_rx_register; - netdev->vlan_rx_add_vid = igb_vlan_rx_add_vid; - netdev->vlan_rx_kill_vid = igb_vlan_rx_kill_vid; -#ifdef CONFIG_NET_POLL_CONTROLLER - netdev->poll_controller = igb_netpoll; -#endif - netdev->hard_start_xmit = &igb_xmit_frame_adv; strncpy(netdev->name, pci_name(pdev), sizeof(netdev->name) - 1); @@ -1275,16 +1323,14 @@ static int __devinit igb_probe(struct pci_dev *pdev, dev_info(&pdev->dev, "Intel(R) Gigabit Ethernet Network Connection\n"); /* print bus type/speed/width info */ - dev_info(&pdev->dev, - "%s: (PCIe:%s:%s) %02x:%02x:%02x:%02x:%02x:%02x\n", + dev_info(&pdev->dev, "%s: (PCIe:%s:%s) %pM\n", netdev->name, ((hw->bus.speed == e1000_bus_speed_2500) ? "2.5Gb/s" : "unknown"), ((hw->bus.width == e1000_bus_width_pcie_x4) ? "Width x4" : (hw->bus.width == e1000_bus_width_pcie_x1) ? "Width x1" : "unknown"), - netdev->dev_addr[0], netdev->dev_addr[1], netdev->dev_addr[2], - netdev->dev_addr[3], netdev->dev_addr[4], netdev->dev_addr[5]); + netdev->dev_addr); igb_read_part_num(hw, &part_num); dev_info(&pdev->dev, "%s: PBA No: %06x-%03x\n", netdev->name, @@ -1302,7 +1348,7 @@ err_register: igb_release_hw_control(adapter); err_eeprom: if (!igb_check_reset_block(hw)) - hw->phy.ops.reset_phy(hw); + igb_reset_phy(hw); if (hw->flash_address) iounmap(hw->flash_address); @@ -1338,6 +1384,7 @@ static void __devexit igb_remove(struct pci_dev *pdev) #ifdef CONFIG_IGB_DCA struct e1000_hw *hw = &adapter->hw; #endif + int err; /* flush_scheduled work may reschedule our watchdog task, so * explicitly disable watchdog tasks from being rescheduled */ @@ -1362,9 +1409,8 @@ static void __devexit igb_remove(struct pci_dev *pdev) unregister_netdev(netdev); - if (adapter->hw.phy.ops.reset_phy && - !igb_check_reset_block(&adapter->hw)) - adapter->hw.phy.ops.reset_phy(&adapter->hw); + if (!igb_check_reset_block(&adapter->hw)) + igb_reset_phy(&adapter->hw); igb_remove_device(&adapter->hw); igb_reset_interrupt_capability(adapter); @@ -1378,6 +1424,11 @@ static void __devexit igb_remove(struct pci_dev *pdev) free_netdev(netdev); + err = pci_disable_pcie_error_reporting(pdev); + if (err) + dev_err(&pdev->dev, + "pci_disable_pcie_error_reporting failed 0x%x\n", err); + pci_disable_device(pdev); } @@ -1397,6 +1448,8 @@ static int __devinit igb_sw_init(struct igb_adapter *adapter) pci_read_config_word(pdev, PCI_COMMAND, &hw->bus.pci_cmd_word); + adapter->tx_ring_count = IGB_DEFAULT_TXD; + adapter->rx_ring_count = IGB_DEFAULT_RXD; adapter->rx_buffer_len = MAXIMUM_ETHERNET_VLAN_SIZE; adapter->rx_ps_hdr_size = 0; /* disable packet split */ adapter->max_frame_size = netdev->mtu + ETH_HLEN + ETH_FCS_LEN; @@ -1558,8 +1611,7 @@ int igb_setup_tx_resources(struct igb_adapter *adapter, memset(tx_ring->buffer_info, 0, size); /* round up to nearest 4K */ - tx_ring->size = tx_ring->count * sizeof(struct e1000_tx_desc) - + sizeof(u32); + tx_ring->size = tx_ring->count * sizeof(struct e1000_tx_desc); tx_ring->size = ALIGN(tx_ring->size, 4096); tx_ring->desc = pci_alloc_consistent(pdev, tx_ring->size, @@ -1618,43 +1670,37 @@ static int igb_setup_all_tx_resources(struct igb_adapter *adapter) **/ static void igb_configure_tx(struct igb_adapter *adapter) { - u64 tdba, tdwba; + u64 tdba; struct e1000_hw *hw = &adapter->hw; u32 tctl; u32 txdctl, txctrl; - int i; + int i, j; for (i = 0; i < adapter->num_tx_queues; i++) { struct igb_ring *ring = &(adapter->tx_ring[i]); - - wr32(E1000_TDLEN(i), + j = ring->reg_idx; + wr32(E1000_TDLEN(j), ring->count * sizeof(struct e1000_tx_desc)); tdba = ring->dma; - wr32(E1000_TDBAL(i), + wr32(E1000_TDBAL(j), tdba & 0x00000000ffffffffULL); - wr32(E1000_TDBAH(i), tdba >> 32); - - tdwba = ring->dma + ring->count * sizeof(struct e1000_tx_desc); - tdwba |= 1; /* enable head wb */ - wr32(E1000_TDWBAL(i), - tdwba & 0x00000000ffffffffULL); - wr32(E1000_TDWBAH(i), tdwba >> 32); + wr32(E1000_TDBAH(j), tdba >> 32); - ring->head = E1000_TDH(i); - ring->tail = E1000_TDT(i); + ring->head = E1000_TDH(j); + ring->tail = E1000_TDT(j); writel(0, hw->hw_addr + ring->tail); writel(0, hw->hw_addr + ring->head); - txdctl = rd32(E1000_TXDCTL(i)); + txdctl = rd32(E1000_TXDCTL(j)); txdctl |= E1000_TXDCTL_QUEUE_ENABLE; - wr32(E1000_TXDCTL(i), txdctl); + wr32(E1000_TXDCTL(j), txdctl); /* Turn off Relaxed Ordering on head write-backs. The * writebacks MUST be delivered in order or it will * completely screw up our bookeeping. */ - txctrl = rd32(E1000_DCA_TXCTRL(i)); + txctrl = rd32(E1000_DCA_TXCTRL(j)); txctrl &= ~E1000_DCA_TXCTRL_TX_WB_RO_EN; - wr32(E1000_DCA_TXCTRL(i), txctrl); + wr32(E1000_DCA_TXCTRL(j), txctrl); } @@ -1771,14 +1817,14 @@ static void igb_setup_rctl(struct igb_adapter *adapter) struct e1000_hw *hw = &adapter->hw; u32 rctl; u32 srrctl = 0; - int i; + int i, j; rctl = rd32(E1000_RCTL); rctl &= ~(3 << E1000_RCTL_MO_SHIFT); + rctl &= ~(E1000_RCTL_LBM_TCVR | E1000_RCTL_LBM_MAC); - rctl |= E1000_RCTL_EN | E1000_RCTL_BAM | - E1000_RCTL_LBM_NO | E1000_RCTL_RDMTS_HALF | + rctl |= E1000_RCTL_EN | E1000_RCTL_BAM | E1000_RCTL_RDMTS_HALF | (adapter->hw.mac.mc_filter_type << E1000_RCTL_MO_SHIFT); /* @@ -1788,38 +1834,26 @@ static void igb_setup_rctl(struct igb_adapter *adapter) */ rctl |= E1000_RCTL_SECRC; - rctl &= ~E1000_RCTL_SBP; + /* + * disable store bad packets, long packet enable, and clear size bits. + */ + rctl &= ~(E1000_RCTL_SBP | E1000_RCTL_LPE | E1000_RCTL_SZ_256); - if (adapter->netdev->mtu <= ETH_DATA_LEN) - rctl &= ~E1000_RCTL_LPE; - else + if (adapter->netdev->mtu > ETH_DATA_LEN) rctl |= E1000_RCTL_LPE; - if (adapter->rx_buffer_len <= IGB_RXBUFFER_2048) { - /* Setup buffer sizes */ - rctl &= ~E1000_RCTL_SZ_4096; - rctl |= E1000_RCTL_BSEX; - switch (adapter->rx_buffer_len) { - case IGB_RXBUFFER_256: - rctl |= E1000_RCTL_SZ_256; - rctl &= ~E1000_RCTL_BSEX; - break; - case IGB_RXBUFFER_512: - rctl |= E1000_RCTL_SZ_512; - rctl &= ~E1000_RCTL_BSEX; - break; - case IGB_RXBUFFER_1024: - rctl |= E1000_RCTL_SZ_1024; - rctl &= ~E1000_RCTL_BSEX; - break; - case IGB_RXBUFFER_2048: - default: - rctl |= E1000_RCTL_SZ_2048; - rctl &= ~E1000_RCTL_BSEX; - break; - } - } else { - rctl &= ~E1000_RCTL_BSEX; - srrctl = adapter->rx_buffer_len >> E1000_SRRCTL_BSIZEPKT_SHIFT; + + /* Setup buffer sizes */ + switch (adapter->rx_buffer_len) { + case IGB_RXBUFFER_256: + rctl |= E1000_RCTL_SZ_256; + break; + case IGB_RXBUFFER_512: + rctl |= E1000_RCTL_SZ_512; + break; + default: + srrctl = ALIGN(adapter->rx_buffer_len, 1024) + >> E1000_SRRCTL_BSIZEPKT_SHIFT; + break; } /* 82575 and greater support packet-split where the protocol @@ -1841,8 +1875,10 @@ static void igb_setup_rctl(struct igb_adapter *adapter) srrctl |= E1000_SRRCTL_DESCTYPE_ADV_ONEBUF; } - for (i = 0; i < adapter->num_rx_queues; i++) - wr32(E1000_SRRCTL(i), srrctl); + for (i = 0; i < adapter->num_rx_queues; i++) { + j = adapter->rx_ring[i].reg_idx; + wr32(E1000_SRRCTL(j), srrctl); + } wr32(E1000_RCTL, rctl); } @@ -1859,7 +1895,7 @@ static void igb_configure_rx(struct igb_adapter *adapter) struct e1000_hw *hw = &adapter->hw; u32 rctl, rxcsum; u32 rxdctl; - int i; + int i, j; /* disable receives while setting up the descriptors */ rctl = rd32(E1000_RCTL); @@ -1874,25 +1910,26 @@ static void igb_configure_rx(struct igb_adapter *adapter) * the Base and Length of the Rx Descriptor Ring */ for (i = 0; i < adapter->num_rx_queues; i++) { struct igb_ring *ring = &(adapter->rx_ring[i]); + j = ring->reg_idx; rdba = ring->dma; - wr32(E1000_RDBAL(i), + wr32(E1000_RDBAL(j), rdba & 0x00000000ffffffffULL); - wr32(E1000_RDBAH(i), rdba >> 32); - wr32(E1000_RDLEN(i), + wr32(E1000_RDBAH(j), rdba >> 32); + wr32(E1000_RDLEN(j), ring->count * sizeof(union e1000_adv_rx_desc)); - ring->head = E1000_RDH(i); - ring->tail = E1000_RDT(i); + ring->head = E1000_RDH(j); + ring->tail = E1000_RDT(j); writel(0, hw->hw_addr + ring->tail); writel(0, hw->hw_addr + ring->head); - rxdctl = rd32(E1000_RXDCTL(i)); + rxdctl = rd32(E1000_RXDCTL(j)); rxdctl |= E1000_RXDCTL_QUEUE_ENABLE; rxdctl &= 0xFFF00000; rxdctl |= IGB_RX_PTHRESH; rxdctl |= IGB_RX_HTHRESH << 8; rxdctl |= IGB_RX_WTHRESH << 16; - wr32(E1000_RXDCTL(i), rxdctl); + wr32(E1000_RXDCTL(j), rxdctl); #ifdef CONFIG_IGB_LRO /* Intitial LRO Settings */ ring->lro_mgr.max_aggr = MAX_LRO_AGGR; @@ -1922,7 +1959,7 @@ static void igb_configure_rx(struct igb_adapter *adapter) shift = 6; for (j = 0; j < (32 * 4); j++) { reta.bytes[j & 3] = - (j % adapter->num_rx_queues) << shift; + adapter->rx_ring[(j % adapter->num_rx_queues)].reg_idx << shift; if ((j & 3) == 3) writel(reta.dword, hw->hw_addr + E1000_RETA(0) + (j & ~3)); @@ -1984,7 +2021,7 @@ static void igb_configure_rx(struct igb_adapter *adapter) * * Free all transmit software resources **/ -static void igb_free_tx_resources(struct igb_ring *tx_ring) +void igb_free_tx_resources(struct igb_ring *tx_ring) { struct pci_dev *pdev = tx_ring->adapter->pdev; @@ -2082,7 +2119,7 @@ static void igb_clean_all_tx_rings(struct igb_adapter *adapter) * * Free all receive software resources **/ -static void igb_free_rx_resources(struct igb_ring *rx_ring) +void igb_free_rx_resources(struct igb_ring *rx_ring) { struct pci_dev *pdev = rx_ring->adapter->pdev; @@ -2274,8 +2311,7 @@ static void igb_set_multi(struct net_device *netdev) static void igb_update_phy_info(unsigned long data) { struct igb_adapter *adapter = (struct igb_adapter *) data; - if (adapter->hw.phy.ops.get_phy_info) - adapter->hw.phy.ops.get_phy_info(&adapter->hw); + igb_get_phy_info(&adapter->hw); } /** @@ -2330,9 +2366,10 @@ static void igb_watchdog_task(struct work_struct *work) &adapter->link_duplex); ctrl = rd32(E1000_CTRL); - dev_info(&adapter->pdev->dev, - "NIC Link is Up %d Mbps %s, " + /* Links status message must follow this format */ + printk(KERN_INFO "igb: %s NIC Link is Up %d Mbps %s, " "Flow Control: %s\n", + netdev->name, adapter->link_speed, adapter->link_duplex == FULL_DUPLEX ? "Full Duplex" : "Half Duplex", @@ -2367,7 +2404,9 @@ static void igb_watchdog_task(struct work_struct *work) if (netif_carrier_ok(netdev)) { adapter->link_speed = 0; adapter->link_duplex = 0; - dev_info(&adapter->pdev->dev, "NIC Link is Down\n"); + /* Links status message must follow this format */ + printk(KERN_INFO "igb: %s NIC Link is Down\n", + netdev->name); netif_carrier_off(netdev); netif_tx_stop_all_queues(netdev); if (!test_bit(__IGB_DOWN, &adapter->state)) @@ -2703,6 +2742,7 @@ static inline int igb_tso_adv(struct igb_adapter *adapter, context_desc->seqnum_seed = 0; buffer_info->time_stamp = jiffies; + buffer_info->next_to_watch = i; buffer_info->dma = 0; i++; if (i == tx_ring->count) @@ -2766,6 +2806,7 @@ static inline bool igb_tx_csum_adv(struct igb_adapter *adapter, cpu_to_le32(tx_ring->queue_index << 4); buffer_info->time_stamp = jiffies; + buffer_info->next_to_watch = i; buffer_info->dma = 0; i++; @@ -2784,8 +2825,8 @@ static inline bool igb_tx_csum_adv(struct igb_adapter *adapter, #define IGB_MAX_DATA_PER_TXD (1<<IGB_MAX_TXD_PWR) static inline int igb_tx_map_adv(struct igb_adapter *adapter, - struct igb_ring *tx_ring, - struct sk_buff *skb) + struct igb_ring *tx_ring, struct sk_buff *skb, + unsigned int first) { struct igb_buffer *buffer_info; unsigned int len = skb_headlen(skb); @@ -2799,6 +2840,7 @@ static inline int igb_tx_map_adv(struct igb_adapter *adapter, buffer_info->length = len; /* set time_stamp *before* dma to help avoid a possible race */ buffer_info->time_stamp = jiffies; + buffer_info->next_to_watch = i; buffer_info->dma = pci_map_single(adapter->pdev, skb->data, len, PCI_DMA_TODEVICE); count++; @@ -2816,6 +2858,7 @@ static inline int igb_tx_map_adv(struct igb_adapter *adapter, BUG_ON(len >= IGB_MAX_DATA_PER_TXD); buffer_info->length = len; buffer_info->time_stamp = jiffies; + buffer_info->next_to_watch = i; buffer_info->dma = pci_map_page(adapter->pdev, frag->page, frag->page_offset, @@ -2828,8 +2871,9 @@ static inline int igb_tx_map_adv(struct igb_adapter *adapter, i = 0; } - i = (i == 0) ? tx_ring->count - 1 : i - 1; + i = ((i == 0) ? tx_ring->count - 1 : i - 1); tx_ring->buffer_info[i].skb = skb; + tx_ring->buffer_info[first].next_to_watch = i; return count; } @@ -2936,6 +2980,7 @@ static int igb_xmit_frame_ring_adv(struct sk_buff *skb, struct igb_ring *tx_ring) { struct igb_adapter *adapter = netdev_priv(netdev); + unsigned int first; unsigned int tx_flags = 0; unsigned int len; u8 hdr_len = 0; @@ -2972,6 +3017,8 @@ static int igb_xmit_frame_ring_adv(struct sk_buff *skb, if (skb->protocol == htons(ETH_P_IP)) tx_flags |= IGB_TX_FLAGS_IPV4; + first = tx_ring->next_to_use; + tso = skb_is_gso(skb) ? igb_tso_adv(adapter, tx_ring, skb, tx_flags, &hdr_len) : 0; @@ -2987,7 +3034,7 @@ static int igb_xmit_frame_ring_adv(struct sk_buff *skb, tx_flags |= IGB_TX_FLAGS_CSUM; igb_tx_queue_adv(adapter, tx_ring, tx_flags, - igb_tx_map_adv(adapter, tx_ring, skb), + igb_tx_map_adv(adapter, tx_ring, skb, first), skb->len, hdr_len); netdev->trans_start = jiffies; @@ -3249,7 +3296,7 @@ void igb_update_stats(struct igb_adapter *adapter) /* Phy Stats */ if (hw->phy.media_type == e1000_media_type_copper) { if ((adapter->link_speed == SPEED_1000) && - (!hw->phy.ops.read_phy_reg(hw, PHY_1000T_STATUS, + (!igb_read_phy_reg(hw, PHY_1000T_STATUS, &phy_tmp))) { phy_tmp &= PHY_IDLE_ERROR_COUNT_MASK; adapter->phy_stats.idle_errors += phy_tmp; @@ -3332,7 +3379,6 @@ static void igb_write_itr(struct igb_ring *ring) static irqreturn_t igb_msix_rx(int irq, void *data) { struct igb_ring *rx_ring = data; - struct igb_adapter *adapter = rx_ring->adapter; /* Write the ITR value calculated at the end of the * previous interrupt. @@ -3340,11 +3386,11 @@ static irqreturn_t igb_msix_rx(int irq, void *data) igb_write_itr(rx_ring); - if (netif_rx_schedule_prep(adapter->netdev, &rx_ring->napi)) - __netif_rx_schedule(adapter->netdev, &rx_ring->napi); + if (netif_rx_schedule_prep(&rx_ring->napi)) + __netif_rx_schedule(&rx_ring->napi); #ifdef CONFIG_IGB_DCA - if (adapter->flags & IGB_FLAG_DCA_ENABLED) + if (rx_ring->adapter->flags & IGB_FLAG_DCA_ENABLED) igb_update_rx_dca(rx_ring); #endif return IRQ_HANDLED; @@ -3357,7 +3403,7 @@ static void igb_update_rx_dca(struct igb_ring *rx_ring) struct igb_adapter *adapter = rx_ring->adapter; struct e1000_hw *hw = &adapter->hw; int cpu = get_cpu(); - int q = rx_ring - adapter->rx_ring; + int q = rx_ring->reg_idx; if (rx_ring->cpu != cpu) { dca_rxctrl = rd32(E1000_DCA_RXCTRL(q)); @@ -3384,7 +3430,7 @@ static void igb_update_tx_dca(struct igb_ring *tx_ring) struct igb_adapter *adapter = tx_ring->adapter; struct e1000_hw *hw = &adapter->hw; int cpu = get_cpu(); - int q = tx_ring - adapter->tx_ring; + int q = tx_ring->reg_idx; if (tx_ring->cpu != cpu) { dca_txctrl = rd32(E1000_DCA_TXCTRL(q)); @@ -3493,7 +3539,7 @@ static irqreturn_t igb_intr_msi(int irq, void *data) mod_timer(&adapter->watchdog_timer, jiffies + 1); } - netif_rx_schedule(netdev, &adapter->rx_ring[0].napi); + netif_rx_schedule(&adapter->rx_ring[0].napi); return IRQ_HANDLED; } @@ -3531,7 +3577,7 @@ static irqreturn_t igb_intr(int irq, void *data) mod_timer(&adapter->watchdog_timer, jiffies + 1); } - netif_rx_schedule(netdev, &adapter->rx_ring[0].napi); + netif_rx_schedule(&adapter->rx_ring[0].napi); return IRQ_HANDLED; } @@ -3566,7 +3612,7 @@ static int igb_poll(struct napi_struct *napi, int budget) !netif_running(netdev)) { if (adapter->itr_setting & 3) igb_set_itr(adapter); - netif_rx_complete(netdev, napi); + netif_rx_complete(napi); if (!test_bit(__IGB_DOWN, &adapter->state)) igb_irq_enable(adapter); return 0; @@ -3592,7 +3638,7 @@ static int igb_clean_rx_ring_msix(struct napi_struct *napi, int budget) /* If not enough Rx work done, exit the polling mode */ if ((work_done == 0) || !netif_running(netdev)) { - netif_rx_complete(netdev, napi); + netif_rx_complete(napi); if (adapter->itr_setting & 3) { if (adapter->num_rx_queues == 1) @@ -3610,12 +3656,6 @@ static int igb_clean_rx_ring_msix(struct napi_struct *napi, int budget) return 1; } -static inline u32 get_head(struct igb_ring *tx_ring) -{ - void *end = (struct e1000_tx_desc *)tx_ring->desc + tx_ring->count; - return le32_to_cpu(*(volatile __le32 *)end); -} - /** * igb_clean_tx_irq - Reclaim resources after transmit completes * @adapter: board private structure @@ -3624,24 +3664,25 @@ static inline u32 get_head(struct igb_ring *tx_ring) static bool igb_clean_tx_irq(struct igb_ring *tx_ring) { struct igb_adapter *adapter = tx_ring->adapter; - struct e1000_hw *hw = &adapter->hw; struct net_device *netdev = adapter->netdev; - struct e1000_tx_desc *tx_desc; + struct e1000_hw *hw = &adapter->hw; struct igb_buffer *buffer_info; struct sk_buff *skb; - unsigned int i; - u32 head, oldhead; - unsigned int count = 0; + union e1000_adv_tx_desc *tx_desc, *eop_desc; unsigned int total_bytes = 0, total_packets = 0; - bool retval = true; + unsigned int i, eop, count = 0; + bool cleaned = false; - rmb(); - head = get_head(tx_ring); i = tx_ring->next_to_clean; - while (1) { - while (i != head) { - tx_desc = E1000_TX_DESC(*tx_ring, i); + eop = tx_ring->buffer_info[i].next_to_watch; + eop_desc = E1000_TX_DESC_ADV(*tx_ring, eop); + + while ((eop_desc->wb.status & cpu_to_le32(E1000_TXD_STAT_DD)) && + (count < tx_ring->count)) { + for (cleaned = false; !cleaned; count++) { + tx_desc = E1000_TX_DESC_ADV(*tx_ring, i); buffer_info = &tx_ring->buffer_info[i]; + cleaned = (i == eop); skb = buffer_info->skb; if (skb) { @@ -3656,25 +3697,17 @@ static bool igb_clean_tx_irq(struct igb_ring *tx_ring) } igb_unmap_and_free_tx_resource(adapter, buffer_info); + tx_desc->wb.status = 0; i++; if (i == tx_ring->count) i = 0; - - count++; - if (count == IGB_MAX_TX_CLEAN) { - retval = false; - goto done_cleaning; - } } - oldhead = head; - rmb(); - head = get_head(tx_ring); - if (head == oldhead) - goto done_cleaning; - } /* while (1) */ - -done_cleaning: + + eop = tx_ring->buffer_info[i].next_to_watch; + eop_desc = E1000_TX_DESC_ADV(*tx_ring, eop); + } + tx_ring->next_to_clean = i; if (unlikely(count && @@ -3701,7 +3734,6 @@ done_cleaning: && !(rd32(E1000_STATUS) & E1000_STATUS_TXOFF)) { - tx_desc = E1000_TX_DESC(*tx_ring, i); /* detected Tx unit hang */ dev_err(&adapter->pdev->dev, "Detected Tx Unit Hang\n" @@ -3710,9 +3742,9 @@ done_cleaning: " TDT <%x>\n" " next_to_use <%x>\n" " next_to_clean <%x>\n" - " head (WB) <%x>\n" "buffer_info[next_to_clean]\n" " time_stamp <%lx>\n" + " next_to_watch <%x>\n" " jiffies <%lx>\n" " desc.status <%x>\n", tx_ring->queue_index, @@ -3720,10 +3752,10 @@ done_cleaning: readl(adapter->hw.hw_addr + tx_ring->tail), tx_ring->next_to_use, tx_ring->next_to_clean, - head, tx_ring->buffer_info[i].time_stamp, + eop, jiffies, - tx_desc->upper.fields.status); + eop_desc->wb.status); netif_stop_subqueue(netdev, tx_ring->queue_index); } } @@ -3733,7 +3765,7 @@ done_cleaning: tx_ring->tx_stats.packets += total_packets; adapter->net_stats.tx_bytes += total_bytes; adapter->net_stats.tx_packets += total_packets; - return retval; + return (count < tx_ring->count); } #ifdef CONFIG_IGB_LRO @@ -3919,8 +3951,10 @@ send_up: next_buffer = &rx_ring->buffer_info[i]; if (!(staterr & E1000_RXD_STAT_EOP)) { - buffer_info->skb = xchg(&next_buffer->skb, skb); - buffer_info->dma = xchg(&next_buffer->dma, 0); + buffer_info->skb = next_buffer->skb; + buffer_info->dma = next_buffer->dma; + next_buffer->skb = skb; + next_buffer->dma = 0; goto next_desc; } @@ -3938,8 +3972,6 @@ send_up: igb_receive_skb(rx_ring, staterr, rx_desc, skb); - netdev->last_rx = jiffies; - next_desc: rx_desc->wb.upper.status_error = 0; @@ -4102,9 +4134,8 @@ static int igb_mii_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd) case SIOCGMIIREG: if (!capable(CAP_NET_ADMIN)) return -EPERM; - if (adapter->hw.phy.ops.read_phy_reg(&adapter->hw, - data->reg_num - & 0x1F, &data->val_out)) + if (igb_read_phy_reg(&adapter->hw, data->reg_num & 0x1F, + &data->val_out)) return -EIO; break; case SIOCSMIIREG: @@ -4474,27 +4505,38 @@ static pci_ers_result_t igb_io_slot_reset(struct pci_dev *pdev) struct net_device *netdev = pci_get_drvdata(pdev); struct igb_adapter *adapter = netdev_priv(netdev); struct e1000_hw *hw = &adapter->hw; + pci_ers_result_t result; int err; if (adapter->need_ioport) err = pci_enable_device(pdev); else err = pci_enable_device_mem(pdev); + if (err) { dev_err(&pdev->dev, "Cannot re-enable PCI device after reset.\n"); - return PCI_ERS_RESULT_DISCONNECT; - } - pci_set_master(pdev); - pci_restore_state(pdev); + result = PCI_ERS_RESULT_DISCONNECT; + } else { + pci_set_master(pdev); + pci_restore_state(pdev); - pci_enable_wake(pdev, PCI_D3hot, 0); - pci_enable_wake(pdev, PCI_D3cold, 0); + pci_enable_wake(pdev, PCI_D3hot, 0); + pci_enable_wake(pdev, PCI_D3cold, 0); - igb_reset(adapter); - wr32(E1000_WUS, ~0); + igb_reset(adapter); + wr32(E1000_WUS, ~0); + result = PCI_ERS_RESULT_RECOVERED; + } + + err = pci_cleanup_aer_uncorrect_error_status(pdev); + if (err) { + dev_err(&pdev->dev, "pci_cleanup_aer_uncorrect_error_status " + "failed 0x%0x\n", err); + /* non-fatal, continue */ + } - return PCI_ERS_RESULT_RECOVERED; + return result; } /** @@ -4522,7 +4564,6 @@ static void igb_io_resume(struct pci_dev *pdev) /* let the f/w know that the h/w is now under the control of the * driver. */ igb_get_hw_control(adapter); - } /* igb_main.c */ |