diff options
Diffstat (limited to 'drivers/net/ixgbe/ixgbe_main.c')
| -rw-r--r-- | drivers/net/ixgbe/ixgbe_main.c | 1507 |
1 files changed, 1018 insertions, 489 deletions
diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c index 5d364a96e35d..286ecc0e6ab7 100644 --- a/drivers/net/ixgbe/ixgbe_main.c +++ b/drivers/net/ixgbe/ixgbe_main.c @@ -1,7 +1,7 @@ /******************************************************************************* Intel 10 Gigabit PCI Express 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, @@ -47,12 +47,13 @@ char ixgbe_driver_name[] = "ixgbe"; static const char ixgbe_driver_string[] = "Intel(R) 10 Gigabit PCI Express Network Driver"; -#define DRV_VERSION "1.3.30-k2" +#define DRV_VERSION "2.0.8-k2" const char ixgbe_driver_version[] = DRV_VERSION; -static char ixgbe_copyright[] = "Copyright (c) 1999-2007 Intel Corporation."; +static char ixgbe_copyright[] = "Copyright (c) 1999-2009 Intel Corporation."; static const struct ixgbe_info *ixgbe_info_tbl[] = { [board_82598] = &ixgbe_82598_info, + [board_82599] = &ixgbe_82599_info, }; /* ixgbe_pci_tbl - PCI Device ID Table @@ -64,6 +65,8 @@ static const struct ixgbe_info *ixgbe_info_tbl[] = { * Class, Class Mask, private data (not used) } */ static struct pci_device_id ixgbe_pci_tbl[] = { + {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598), + board_82598 }, {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598AF_DUAL_PORT), board_82598 }, {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598AF_SINGLE_PORT), @@ -82,6 +85,12 @@ static struct pci_device_id ixgbe_pci_tbl[] = { board_82598 }, {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598EB_SFP_LOM), board_82598 }, + {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82598_BX), + board_82598 }, + {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_KX4), + board_82599 }, + {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_SFP), + board_82599 }, /* required last entry */ {0, } @@ -125,32 +134,67 @@ static void ixgbe_get_hw_control(struct ixgbe_adapter *adapter) ctrl_ext | IXGBE_CTRL_EXT_DRV_LOAD); } -static void ixgbe_set_ivar(struct ixgbe_adapter *adapter, u16 int_alloc_entry, - u8 msix_vector) +/* + * ixgbe_set_ivar - set the IVAR registers, mapping interrupt causes to vectors + * @adapter: pointer to adapter struct + * @direction: 0 for Rx, 1 for Tx, -1 for other causes + * @queue: queue to map the corresponding interrupt to + * @msix_vector: the vector to map to the corresponding queue + * + */ +static void ixgbe_set_ivar(struct ixgbe_adapter *adapter, s8 direction, + u8 queue, u8 msix_vector) { u32 ivar, index; - - msix_vector |= IXGBE_IVAR_ALLOC_VAL; - index = (int_alloc_entry >> 2) & 0x1F; - ivar = IXGBE_READ_REG(&adapter->hw, IXGBE_IVAR(index)); - ivar &= ~(0xFF << (8 * (int_alloc_entry & 0x3))); - ivar |= (msix_vector << (8 * (int_alloc_entry & 0x3))); - IXGBE_WRITE_REG(&adapter->hw, IXGBE_IVAR(index), ivar); + struct ixgbe_hw *hw = &adapter->hw; + switch (hw->mac.type) { + case ixgbe_mac_82598EB: + msix_vector |= IXGBE_IVAR_ALLOC_VAL; + if (direction == -1) + direction = 0; + index = (((direction * 64) + queue) >> 2) & 0x1F; + ivar = IXGBE_READ_REG(hw, IXGBE_IVAR(index)); + ivar &= ~(0xFF << (8 * (queue & 0x3))); + ivar |= (msix_vector << (8 * (queue & 0x3))); + IXGBE_WRITE_REG(hw, IXGBE_IVAR(index), ivar); + break; + case ixgbe_mac_82599EB: + if (direction == -1) { + /* other causes */ + msix_vector |= IXGBE_IVAR_ALLOC_VAL; + index = ((queue & 1) * 8); + ivar = IXGBE_READ_REG(&adapter->hw, IXGBE_IVAR_MISC); + ivar &= ~(0xFF << index); + ivar |= (msix_vector << index); + IXGBE_WRITE_REG(&adapter->hw, IXGBE_IVAR_MISC, ivar); + break; + } else { + /* tx or rx causes */ + msix_vector |= IXGBE_IVAR_ALLOC_VAL; + index = ((16 * (queue & 1)) + (8 * direction)); + ivar = IXGBE_READ_REG(hw, IXGBE_IVAR(queue >> 1)); + ivar &= ~(0xFF << index); + ivar |= (msix_vector << index); + IXGBE_WRITE_REG(hw, IXGBE_IVAR(queue >> 1), ivar); + break; + } + default: + break; + } } static void ixgbe_unmap_and_free_tx_resource(struct ixgbe_adapter *adapter, struct ixgbe_tx_buffer *tx_buffer_info) { - if (tx_buffer_info->dma) { - pci_unmap_page(adapter->pdev, tx_buffer_info->dma, - tx_buffer_info->length, PCI_DMA_TODEVICE); - tx_buffer_info->dma = 0; - } + tx_buffer_info->dma = 0; if (tx_buffer_info->skb) { + skb_dma_unmap(&adapter->pdev->dev, tx_buffer_info->skb, + DMA_TO_DEVICE); dev_kfree_skb_any(tx_buffer_info->skb); tx_buffer_info->skb = NULL; } + tx_buffer_info->time_stamp = 0; /* tx_buffer_info must be completely set up in the transmit path */ } @@ -159,15 +203,11 @@ static inline bool ixgbe_check_tx_hang(struct ixgbe_adapter *adapter, unsigned int eop) { struct ixgbe_hw *hw = &adapter->hw; - u32 head, tail; /* Detect a transmit hang in hardware, this serializes the * check with the clearing of time_stamp and movement of eop */ - head = IXGBE_READ_REG(hw, tx_ring->head); - tail = IXGBE_READ_REG(hw, tx_ring->tail); adapter->detect_tx_hung = false; - if ((head != tail) && - tx_ring->tx_buffer_info[eop].time_stamp && + if (tx_ring->tx_buffer_info[eop].time_stamp && time_after(jiffies, tx_ring->tx_buffer_info[eop].time_stamp + HZ) && !(IXGBE_READ_REG(&adapter->hw, IXGBE_TFCS) & IXGBE_TFCS_TXOFF)) { /* detected Tx unit hang */ @@ -182,7 +222,8 @@ static inline bool ixgbe_check_tx_hang(struct ixgbe_adapter *adapter, " time_stamp <%lx>\n" " jiffies <%lx>\n", tx_ring->queue_index, - head, tail, + IXGBE_READ_REG(hw, tx_ring->head), + IXGBE_READ_REG(hw, tx_ring->tail), tx_ring->next_to_use, eop, tx_ring->tx_buffer_info[eop].time_stamp, jiffies); return true; @@ -200,39 +241,39 @@ static inline bool ixgbe_check_tx_hang(struct ixgbe_adapter *adapter, #define DESC_NEEDED (TXD_USE_COUNT(IXGBE_MAX_DATA_PER_TXD) /* skb->data */ + \ MAX_SKB_FRAGS * TXD_USE_COUNT(PAGE_SIZE) + 1) /* for context */ -#define GET_TX_HEAD_FROM_RING(ring) (\ - *(volatile u32 *) \ - ((union ixgbe_adv_tx_desc *)(ring)->desc + (ring)->count)) static void ixgbe_tx_timeout(struct net_device *netdev); /** * ixgbe_clean_tx_irq - Reclaim resources after transmit completes * @adapter: board private structure * @tx_ring: tx ring to clean + * + * returns true if transmit work is done **/ static bool ixgbe_clean_tx_irq(struct ixgbe_adapter *adapter, struct ixgbe_ring *tx_ring) { - union ixgbe_adv_tx_desc *tx_desc; - struct ixgbe_tx_buffer *tx_buffer_info; struct net_device *netdev = adapter->netdev; - struct sk_buff *skb; - unsigned int i; - u32 head, oldhead; - unsigned int count = 0; + union ixgbe_adv_tx_desc *tx_desc, *eop_desc; + struct ixgbe_tx_buffer *tx_buffer_info; + unsigned int i, eop, count = 0; unsigned int total_bytes = 0, total_packets = 0; - rmb(); - head = GET_TX_HEAD_FROM_RING(tx_ring); - head = le32_to_cpu(head); i = tx_ring->next_to_clean; - while (1) { - while (i != head) { + eop = tx_ring->tx_buffer_info[i].next_to_watch; + eop_desc = IXGBE_TX_DESC_ADV(*tx_ring, eop); + + while ((eop_desc->wb.status & cpu_to_le32(IXGBE_TXD_STAT_DD)) && + (count < tx_ring->work_limit)) { + bool cleaned = false; + for ( ; !cleaned; count++) { + struct sk_buff *skb; tx_desc = IXGBE_TX_DESC_ADV(*tx_ring, i); tx_buffer_info = &tx_ring->tx_buffer_info[i]; + cleaned = (i == eop); skb = tx_buffer_info->skb; - if (skb) { + if (cleaned && skb) { unsigned int segs, bytecount; /* gso_segs is currently only valid for tcp */ @@ -247,23 +288,17 @@ static bool ixgbe_clean_tx_irq(struct ixgbe_adapter *adapter, ixgbe_unmap_and_free_tx_resource(adapter, tx_buffer_info); + tx_desc->wb.status = 0; + i++; if (i == tx_ring->count) i = 0; - - count++; - if (count == tx_ring->count) - goto done_cleaning; } - oldhead = head; - rmb(); - head = GET_TX_HEAD_FROM_RING(tx_ring); - head = le32_to_cpu(head); - if (head == oldhead) - goto done_cleaning; - } /* while (1) */ - -done_cleaning: + + eop = tx_ring->tx_buffer_info[i].next_to_watch; + eop_desc = IXGBE_TX_DESC_ADV(*tx_ring, eop); + } + tx_ring->next_to_clean = i; #define TX_WAKE_THRESHOLD (DESC_NEEDED * 2) @@ -291,17 +326,16 @@ done_cleaning: } /* re-arm the interrupt */ - if ((total_packets >= tx_ring->work_limit) || - (count == tx_ring->count)) + if (count >= tx_ring->work_limit) IXGBE_WRITE_REG(&adapter->hw, IXGBE_EICS, tx_ring->v_idx); tx_ring->total_bytes += total_bytes; tx_ring->total_packets += total_packets; - tx_ring->stats.bytes += total_bytes; tx_ring->stats.packets += total_packets; + tx_ring->stats.bytes += total_bytes; adapter->net_stats.tx_bytes += total_bytes; adapter->net_stats.tx_packets += total_packets; - return (total_packets ? true : false); + return (count < tx_ring->work_limit); } #ifdef CONFIG_IXGBE_DCA @@ -314,13 +348,19 @@ static void ixgbe_update_rx_dca(struct ixgbe_adapter *adapter, if (rx_ring->cpu != cpu) { rxctrl = IXGBE_READ_REG(&adapter->hw, IXGBE_DCA_RXCTRL(q)); - rxctrl &= ~IXGBE_DCA_RXCTRL_CPUID_MASK; - rxctrl |= dca3_get_tag(&adapter->pdev->dev, cpu); + if (adapter->hw.mac.type == ixgbe_mac_82598EB) { + rxctrl &= ~IXGBE_DCA_RXCTRL_CPUID_MASK; + rxctrl |= dca3_get_tag(&adapter->pdev->dev, cpu); + } else if (adapter->hw.mac.type == ixgbe_mac_82599EB) { + rxctrl &= ~IXGBE_DCA_RXCTRL_CPUID_MASK_82599; + rxctrl |= (dca3_get_tag(&adapter->pdev->dev, cpu) << + IXGBE_DCA_RXCTRL_CPUID_SHIFT_82599); + } rxctrl |= IXGBE_DCA_RXCTRL_DESC_DCA_EN; rxctrl |= IXGBE_DCA_RXCTRL_HEAD_DCA_EN; rxctrl &= ~(IXGBE_DCA_RXCTRL_DESC_RRO_EN); rxctrl &= ~(IXGBE_DCA_RXCTRL_DESC_WRO_EN | - IXGBE_DCA_RXCTRL_DESC_HSRO_EN); + IXGBE_DCA_RXCTRL_DESC_HSRO_EN); IXGBE_WRITE_REG(&adapter->hw, IXGBE_DCA_RXCTRL(q), rxctrl); rx_ring->cpu = cpu; } @@ -336,8 +376,14 @@ static void ixgbe_update_tx_dca(struct ixgbe_adapter *adapter, if (tx_ring->cpu != cpu) { txctrl = IXGBE_READ_REG(&adapter->hw, IXGBE_DCA_TXCTRL(q)); - txctrl &= ~IXGBE_DCA_TXCTRL_CPUID_MASK; - txctrl |= dca3_get_tag(&adapter->pdev->dev, cpu); + if (adapter->hw.mac.type == ixgbe_mac_82598EB) { + txctrl &= ~IXGBE_DCA_TXCTRL_CPUID_MASK; + txctrl |= dca3_get_tag(&adapter->pdev->dev, cpu); + } else if (adapter->hw.mac.type == ixgbe_mac_82599EB) { + txctrl &= ~IXGBE_DCA_TXCTRL_CPUID_MASK_82599; + txctrl |= (dca3_get_tag(&adapter->pdev->dev, cpu) << + IXGBE_DCA_TXCTRL_CPUID_SHIFT_82599); + } txctrl |= IXGBE_DCA_TXCTRL_DESC_DCA_EN; IXGBE_WRITE_REG(&adapter->hw, IXGBE_DCA_TXCTRL(q), txctrl); tx_ring->cpu = cpu; @@ -403,23 +449,21 @@ static int __ixgbe_notify_dca(struct device *dev, void *data) * @rx_ring: rx descriptor ring (for a specific queue) to setup * @rx_desc: rx descriptor **/ -static void ixgbe_receive_skb(struct ixgbe_adapter *adapter, +static void ixgbe_receive_skb(struct ixgbe_q_vector *q_vector, struct sk_buff *skb, u8 status, - struct ixgbe_ring *ring, union ixgbe_adv_rx_desc *rx_desc) { + struct ixgbe_adapter *adapter = q_vector->adapter; + struct napi_struct *napi = &q_vector->napi; bool is_vlan = (status & IXGBE_RXD_STAT_VP); u16 tag = le16_to_cpu(rx_desc->wb.upper.vlan); - if (adapter->netdev->features & NETIF_F_LRO && - skb->ip_summed == CHECKSUM_UNNECESSARY) { + skb_record_rx_queue(skb, q_vector - &adapter->q_vector[0]); + if (skb->ip_summed == CHECKSUM_UNNECESSARY) { if (adapter->vlgrp && is_vlan && (tag != 0)) - lro_vlan_hwaccel_receive_skb(&ring->lro_mgr, skb, - adapter->vlgrp, tag, - rx_desc); + vlan_gro_receive(napi, adapter->vlgrp, tag, skb); else - lro_receive_skb(&ring->lro_mgr, skb, rx_desc); - ring->lro_used = true; + napi_gro_receive(napi, skb); } else { if (!(adapter->flags & IXGBE_FLAG_IN_NETPOLL)) { if (adapter->vlgrp && is_vlan && (tag != 0)) @@ -470,6 +514,19 @@ static inline void ixgbe_rx_checksum(struct ixgbe_adapter *adapter, adapter->hw_csum_rx_good++; } +static inline void ixgbe_release_rx_desc(struct ixgbe_hw *hw, + struct ixgbe_ring *rx_ring, u32 val) +{ + /* + * Force memory writes to complete before letting h/w + * know there are new descriptors to fetch. (Only + * applicable for weak-ordered memory model archs, + * such as IA-64). + */ + wmb(); + IXGBE_WRITE_REG(hw, IXGBE_RDT(rx_ring->reg_idx), val); +} + /** * ixgbe_alloc_rx_buffers - Replace used receive buffers; packet split * @adapter: address of board private structure @@ -482,6 +539,7 @@ static void ixgbe_alloc_rx_buffers(struct ixgbe_adapter *adapter, union ixgbe_adv_rx_desc *rx_desc; struct ixgbe_rx_buffer *bi; unsigned int i; + unsigned int bufsz = rx_ring->rx_buf_len + NET_IP_ALIGN; i = rx_ring->next_to_use; bi = &rx_ring->rx_buffer_info[i]; @@ -511,9 +569,7 @@ static void ixgbe_alloc_rx_buffers(struct ixgbe_adapter *adapter, if (!bi->skb) { struct sk_buff *skb; - skb = netdev_alloc_skb(adapter->netdev, - (rx_ring->rx_buf_len + - NET_IP_ALIGN)); + skb = netdev_alloc_skb(adapter->netdev, bufsz); if (!skb) { adapter->alloc_rx_buff_failed++; @@ -528,8 +584,7 @@ static void ixgbe_alloc_rx_buffers(struct ixgbe_adapter *adapter, skb_reserve(skb, NET_IP_ALIGN); bi->skb = skb; - bi->dma = pci_map_single(pdev, skb->data, - rx_ring->rx_buf_len, + bi->dma = pci_map_single(pdev, skb->data, bufsz, PCI_DMA_FROMDEVICE); } /* Refresh the desc even if buffer_addrs didn't change because @@ -553,14 +608,7 @@ no_buffers: if (i-- == 0) i = (rx_ring->count - 1); - /* - * Force memory writes to complete before letting h/w - * know there are new descriptors to fetch. (Only - * applicable for weak-ordered memory model archs, - * such as IA-64). - */ - wmb(); - writel(i, adapter->hw.hw_addr + rx_ring->tail); + ixgbe_release_rx_desc(&adapter->hw, rx_ring, i); } } @@ -574,10 +622,11 @@ static inline u16 ixgbe_get_pkt_info(union ixgbe_adv_rx_desc *rx_desc) return rx_desc->wb.lower.lo_dword.hs_rss.pkt_info; } -static bool ixgbe_clean_rx_irq(struct ixgbe_adapter *adapter, +static bool ixgbe_clean_rx_irq(struct ixgbe_q_vector *q_vector, struct ixgbe_ring *rx_ring, int *work_done, int work_to_do) { + struct ixgbe_adapter *adapter = q_vector->adapter; struct pci_dev *pdev = adapter->pdev; union ixgbe_adv_rx_desc *rx_desc, *next_rxd; struct ixgbe_rx_buffer *rx_buffer_info, *next_buffer; @@ -678,7 +727,7 @@ static bool ixgbe_clean_rx_irq(struct ixgbe_adapter *adapter, total_rx_packets++; skb->protocol = eth_type_trans(skb, adapter->netdev); - ixgbe_receive_skb(adapter, skb, staterr, rx_ring, rx_desc); + ixgbe_receive_skb(q_vector, skb, staterr, rx_desc); next_desc: rx_desc->wb.upper.status_error = 0; @@ -696,11 +745,6 @@ next_desc: staterr = le32_to_cpu(rx_desc->wb.upper.status_error); } - if (rx_ring->lro_used) { - lro_flush_all(&rx_ring->lro_mgr); - rx_ring->lro_used = false; - } - rx_ring->next_to_clean = i; cleaned_count = IXGBE_DESC_UNUSED(rx_ring); @@ -731,7 +775,8 @@ static void ixgbe_configure_msix(struct ixgbe_adapter *adapter) q_vectors = adapter->num_msix_vectors - NON_Q_VECTORS; - /* Populate the IVAR table and set the ITR values to the + /* + * Populate the IVAR table and set the ITR values to the * corresponding register. */ for (v_idx = 0; v_idx < q_vectors; v_idx++) { @@ -742,7 +787,7 @@ static void ixgbe_configure_msix(struct ixgbe_adapter *adapter) for (i = 0; i < q_vector->rxr_count; i++) { j = adapter->rx_ring[r_idx].reg_idx; - ixgbe_set_ivar(adapter, IXGBE_IVAR_RX_QUEUE(j), v_idx); + ixgbe_set_ivar(adapter, 0, j, v_idx); r_idx = find_next_bit(q_vector->rxr_idx, adapter->num_rx_queues, r_idx + 1); @@ -752,7 +797,7 @@ static void ixgbe_configure_msix(struct ixgbe_adapter *adapter) for (i = 0; i < q_vector->txr_count; i++) { j = adapter->tx_ring[r_idx].reg_idx; - ixgbe_set_ivar(adapter, IXGBE_IVAR_TX_QUEUE(j), v_idx); + ixgbe_set_ivar(adapter, 1, j, v_idx); r_idx = find_next_bit(q_vector->txr_idx, adapter->num_tx_queues, r_idx + 1); @@ -761,15 +806,23 @@ static void ixgbe_configure_msix(struct ixgbe_adapter *adapter) /* if this is a tx only vector halve the interrupt rate */ if (q_vector->txr_count && !q_vector->rxr_count) q_vector->eitr = (adapter->eitr_param >> 1); - else + else if (q_vector->rxr_count) /* rx only */ q_vector->eitr = adapter->eitr_param; + /* + * since this is initial set up don't need to call + * ixgbe_write_eitr helper + */ IXGBE_WRITE_REG(&adapter->hw, IXGBE_EITR(v_idx), EITR_INTS_PER_SEC_TO_REG(q_vector->eitr)); } - ixgbe_set_ivar(adapter, IXGBE_IVAR_OTHER_CAUSES_INDEX, v_idx); + if (adapter->hw.mac.type == ixgbe_mac_82598EB) + ixgbe_set_ivar(adapter, -1, IXGBE_IVAR_OTHER_CAUSES_INDEX, + v_idx); + else if (adapter->hw.mac.type == ixgbe_mac_82599EB) + ixgbe_set_ivar(adapter, -1, 1, v_idx); IXGBE_WRITE_REG(&adapter->hw, IXGBE_EITR(v_idx), 1950); /* set up to autoclear timer, and the vectors */ @@ -845,10 +898,35 @@ update_itr_done: return retval; } +/** + * ixgbe_write_eitr - write EITR register in hardware specific way + * @adapter: pointer to adapter struct + * @v_idx: vector index into q_vector array + * @itr_reg: new value to be written in *register* format, not ints/s + * + * This function is made to be called by ethtool and by the driver + * when it needs to update EITR registers at runtime. Hardware + * specific quirks/differences are taken care of here. + */ +void ixgbe_write_eitr(struct ixgbe_adapter *adapter, int v_idx, u32 itr_reg) +{ + struct ixgbe_hw *hw = &adapter->hw; + if (adapter->hw.mac.type == ixgbe_mac_82598EB) { + /* must write high and low 16 bits to reset counter */ + itr_reg |= (itr_reg << 16); + } else if (adapter->hw.mac.type == ixgbe_mac_82599EB) { + /* + * set the WDIS bit to not clear the timer bits and cause an + * immediate assertion of the interrupt + */ + itr_reg |= IXGBE_EITR_CNT_WDIS; + } + IXGBE_WRITE_REG(hw, IXGBE_EITR(v_idx), itr_reg); +} + static void ixgbe_set_itr_msix(struct ixgbe_q_vector *q_vector) { struct ixgbe_adapter *adapter = q_vector->adapter; - struct ixgbe_hw *hw = &adapter->hw; u32 new_itr; u8 current_itr, ret_itr; int i, r_idx, v_idx = ((void *)q_vector - (void *)(adapter->q_vector)) / @@ -903,14 +981,13 @@ static void ixgbe_set_itr_msix(struct ixgbe_q_vector *q_vector) if (new_itr != q_vector->eitr) { u32 itr_reg; + + /* save the algorithm value here, not the smoothed one */ + q_vector->eitr = new_itr; /* do an exponential smoothing */ new_itr = ((q_vector->eitr * 90)/100) + ((new_itr * 10)/100); - q_vector->eitr = new_itr; itr_reg = EITR_INTS_PER_SEC_TO_REG(new_itr); - /* must write high and low 16 bits to reset counter */ - DPRINTK(TX_ERR, DEBUG, "writing eitr(%d): %08X\n", v_idx, - itr_reg); - IXGBE_WRITE_REG(hw, IXGBE_EITR(v_idx), itr_reg | (itr_reg)<<16); + ixgbe_write_eitr(adapter, v_idx, itr_reg); } return; @@ -928,6 +1005,24 @@ static void ixgbe_check_fan_failure(struct ixgbe_adapter *adapter, u32 eicr) } } +static void ixgbe_check_sfp_event(struct ixgbe_adapter *adapter, u32 eicr) +{ + struct ixgbe_hw *hw = &adapter->hw; + + if (eicr & IXGBE_EICR_GPI_SDP1) { + /* Clear the interrupt */ + IXGBE_WRITE_REG(hw, IXGBE_EICR, IXGBE_EICR_GPI_SDP1); + schedule_work(&adapter->multispeed_fiber_task); + } else if (eicr & IXGBE_EICR_GPI_SDP2) { + /* Clear the interrupt */ + IXGBE_WRITE_REG(hw, IXGBE_EICR, IXGBE_EICR_GPI_SDP2); + schedule_work(&adapter->sfp_config_module_task); + } else { + /* Interrupt isn't for us... */ + return; + } +} + static void ixgbe_check_lsc(struct ixgbe_adapter *adapter) { struct ixgbe_hw *hw = &adapter->hw; @@ -946,13 +1041,25 @@ static irqreturn_t ixgbe_msix_lsc(int irq, void *data) struct net_device *netdev = data; struct ixgbe_adapter *adapter = netdev_priv(netdev); struct ixgbe_hw *hw = &adapter->hw; - u32 eicr = IXGBE_READ_REG(hw, IXGBE_EICR); + u32 eicr; + + /* + * Workaround for Silicon errata. Use clear-by-write instead + * of clear-by-read. Reading with EICS will return the + * interrupt causes without clearing, which later be done + * with the write to EICR. + */ + eicr = IXGBE_READ_REG(hw, IXGBE_EICS); + IXGBE_WRITE_REG(hw, IXGBE_EICR, eicr); if (eicr & IXGBE_EICR_LSC) ixgbe_check_lsc(adapter); - ixgbe_check_fan_failure(adapter, eicr); + if (hw->mac.type == ixgbe_mac_82598EB) + ixgbe_check_fan_failure(adapter, eicr); + if (hw->mac.type == ixgbe_mac_82599EB) + ixgbe_check_sfp_event(adapter, eicr); if (!test_bit(__IXGBE_DOWN, &adapter->state)) IXGBE_WRITE_REG(hw, IXGBE_EIMS, IXGBE_EIMS_OTHER); @@ -1015,7 +1122,7 @@ static irqreturn_t ixgbe_msix_clean_rx(int irq, void *data) rx_ring = &(adapter->rx_ring[r_idx]); /* disable interrupts on this vector only */ IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC, rx_ring->v_idx); - netif_rx_schedule(&q_vector->napi); + napi_schedule(&q_vector->napi); return IRQ_HANDLED; } @@ -1052,12 +1159,12 @@ static int ixgbe_clean_rxonly(struct napi_struct *napi, int budget) ixgbe_update_rx_dca(adapter, rx_ring); #endif - ixgbe_clean_rx_irq(adapter, rx_ring, &work_done, budget); + ixgbe_clean_rx_irq(q_vector, rx_ring, &work_done, budget); /* If all Rx work done, exit the polling mode */ if (work_done < budget) { - netif_rx_complete(napi); - if (adapter->itr_setting & 3) + napi_complete(napi); + if (adapter->itr_setting & 1) ixgbe_set_itr_msix(q_vector); if (!test_bit(__IXGBE_DOWN, &adapter->state)) IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMS, rx_ring->v_idx); @@ -1095,7 +1202,7 @@ static int ixgbe_clean_rxonly_many(struct napi_struct *napi, int budget) if (adapter->flags & IXGBE_FLAG_DCA_ENABLED) ixgbe_update_rx_dca(adapter, rx_ring); #endif - ixgbe_clean_rx_irq(adapter, rx_ring, &work_done, budget); + ixgbe_clean_rx_irq(q_vector, rx_ring, &work_done, budget); enable_mask |= rx_ring->v_idx; r_idx = find_next_bit(q_vector->rxr_idx, adapter->num_rx_queues, r_idx + 1); @@ -1105,8 +1212,8 @@ static int ixgbe_clean_rxonly_many(struct napi_struct *napi, int budget) rx_ring = &(adapter->rx_ring[r_idx]); /* If all Rx work done, exit the polling mode */ if (work_done < budget) { - netif_rx_complete(napi); - if (adapter->itr_setting & 3) + napi_complete(napi); + if (adapter->itr_setting & 1) ixgbe_set_itr_msix(q_vector); if (!test_bit(__IXGBE_DOWN, &adapter->state)) IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMS, enable_mask); @@ -1276,7 +1383,6 @@ out: static void ixgbe_set_itr(struct ixgbe_adapter *adapter) { - struct ixgbe_hw *hw = &adapter->hw; struct ixgbe_q_vector *q_vector = adapter->q_vector; u8 current_itr; u32 new_itr = q_vector->eitr; @@ -1311,35 +1417,19 @@ static void ixgbe_set_itr(struct ixgbe_adapter *adapter) if (new_itr != q_vector->eitr) { u32 itr_reg; + + /* save the algorithm value here, not the smoothed one */ + q_vector->eitr = new_itr; /* do an exponential smoothing */ new_itr = ((q_vector->eitr * 90)/100) + ((new_itr * 10)/100); - q_vector->eitr = new_itr; itr_reg = EITR_INTS_PER_SEC_TO_REG(new_itr); - /* must write high and low 16 bits to reset counter */ - IXGBE_WRITE_REG(hw, IXGBE_EITR(0), itr_reg | (itr_reg)<<16); + ixgbe_write_eitr(adapter, 0, itr_reg); } return; } /** - * ixgbe_irq_disable - Mask off interrupt generation on the NIC - * @adapter: board private structure - **/ -static inline void ixgbe_irq_disable(struct ixgbe_adapter *adapter) -{ - IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC, ~0); - IXGBE_WRITE_FLUSH(&adapter->hw); - if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) { - int i; - for (i = 0; i < adapter->num_msix_vectors; i++) - synchronize_irq(adapter->msix_entries[i].vector); - } else { - synchronize_irq(adapter->pdev->irq); - } -} - -/** * ixgbe_irq_enable - Enable default interrupt generation settings * @adapter: board private structure **/ @@ -1349,7 +1439,21 @@ static inline void ixgbe_irq_enable(struct ixgbe_adapter *adapter) mask = IXGBE_EIMS_ENABLE_MASK; if (adapter->flags & IXGBE_FLAG_FAN_FAIL_CAPABLE) mask |= IXGBE_EIMS_GPI_SDP1; + if (adapter->hw.mac.type == ixgbe_mac_82599EB) { + mask |= IXGBE_EIMS_ECC; + mask |= IXGBE_EIMS_GPI_SDP1; + mask |= IXGBE_EIMS_GPI_SDP2; + } + IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMS, mask); + if (adapter->hw.mac.type == ixgbe_mac_82599EB) { + /* enable the rest of the queue vectors */ + IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMS_EX(1), + (IXGBE_EIMS_RTX_QUEUE << 16)); + IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMS_EX(2), + ((IXGBE_EIMS_RTX_QUEUE << 16) | + IXGBE_EIMS_RTX_QUEUE)); + } IXGBE_WRITE_FLUSH(&adapter->hw); } @@ -1365,6 +1469,12 @@ static irqreturn_t ixgbe_intr(int irq, void *data) struct ixgbe_hw *hw = &adapter->hw; u32 eicr; + /* + * Workaround for silicon errata. Mask the interrupts + * before the read of EICR. + */ + IXGBE_WRITE_REG(hw, IXGBE_EIMC, IXGBE_IRQ_CLEAR_MASK); + /* for NAPI, using EIAM to auto-mask tx/rx interrupt bits on read * therefore no explict interrupt disable is necessary */ eicr = IXGBE_READ_REG(hw, IXGBE_EICR); @@ -1379,15 +1489,18 @@ static irqreturn_t ixgbe_intr(int irq, void *data) if (eicr & IXGBE_EICR_LSC) ixgbe_check_lsc(adapter); + if (hw->mac.type == ixgbe_mac_82599EB) + ixgbe_check_sfp_event(adapter, eicr); + ixgbe_check_fan_failure(adapter, eicr); - if (netif_rx_schedule_prep(&adapter->q_vector[0].napi)) { + if (napi_schedule_prep(&adapter->q_vector[0].napi)) { adapter->tx_ring[0].total_packets = 0; adapter->tx_ring[0].total_bytes = 0; adapter->rx_ring[0].total_packets = 0; adapter->rx_ring[0].total_bytes = 0; /* would disable interrupts here but EIAM disabled it */ - __netif_rx_schedule(&adapter->q_vector[0].napi); + __napi_schedule(&adapter->q_vector[0].napi); } return IRQ_HANDLED; @@ -1459,6 +1572,39 @@ static void ixgbe_free_irq(struct ixgbe_adapter *adapter) } /** + * ixgbe_irq_disable - Mask off interrupt generation on the NIC + * @adapter: board private structure + **/ +static inline void ixgbe_irq_disable(struct ixgbe_adapter *adapter) +{ + IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC, ~0); + if (adapter->hw.mac.type == ixgbe_mac_82599EB) { + IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC_EX(1), ~0); + IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC_EX(2), ~0); + } + IXGBE_WRITE_FLUSH(&adapter->hw); + if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) { + int i; + for (i = 0; i < adapter->num_msix_vectors; i++) + synchronize_irq(adapter->msix_entries[i].vector); + } else { + synchronize_irq(adapter->pdev->irq); + } +} + +static inline void ixgbe_irq_enable_queues(struct ixgbe_adapter *adapter) +{ + u32 mask = IXGBE_EIMS_RTX_QUEUE; + IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMS, mask); + if (adapter->hw.mac.type == ixgbe_mac_82599EB) { + IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMS_EX(1), mask << 16); + IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMS_EX(2), + (mask << 16 | mask)); + } + /* skip the flush */ +} + +/** * ixgbe_configure_msi_and_legacy - Initialize PIN (INTA...) and MSI interrupts * **/ @@ -1469,8 +1615,8 @@ static void ixgbe_configure_msi_and_legacy(struct ixgbe_adapter *adapter) IXGBE_WRITE_REG(hw, IXGBE_EITR(0), EITR_INTS_PER_SEC_TO_REG(adapter->eitr_param)); - ixgbe_set_ivar(adapter, IXGBE_IVAR_RX_QUEUE(0), 0); - ixgbe_set_ivar(adapter, IXGBE_IVAR_TX_QUEUE(0), 0); + ixgbe_set_ivar(adapter, 0, 0, 0); + ixgbe_set_ivar(adapter, 1, 0, 0); map_vector_to_rxq(adapter, 0, 0); map_vector_to_txq(adapter, 0, 0); @@ -1486,7 +1632,7 @@ static void ixgbe_configure_msi_and_legacy(struct ixgbe_adapter *adapter) **/ static void ixgbe_configure_tx(struct ixgbe_adapter *adapter) { - u64 tdba, tdwba; + u64 tdba; struct ixgbe_hw *hw = &adapter->hw; u32 i, j, tdlen, txctrl; @@ -1499,11 +1645,6 @@ static void ixgbe_configure_tx(struct ixgbe_adapter *adapter) IXGBE_WRITE_REG(hw, IXGBE_TDBAL(j), (tdba & DMA_32BIT_MASK)); IXGBE_WRITE_REG(hw, IXGBE_TDBAH(j), (tdba >> 32)); - tdwba = ring->dma + - (ring->count * sizeof(union ixgbe_adv_tx_desc)); - tdwba |= IXGBE_TDWBAL_HEAD_WB_ENABLE; - IXGBE_WRITE_REG(hw, IXGBE_TDWBAL(j), tdwba & DMA_32BIT_MASK); - IXGBE_WRITE_REG(hw, IXGBE_TDWBAH(j), (tdwba >> 32)); IXGBE_WRITE_REG(hw, IXGBE_TDLEN(j), tdlen); IXGBE_WRITE_REG(hw, IXGBE_TDH(j), 0); IXGBE_WRITE_REG(hw, IXGBE_TDT(j), 0); @@ -1516,26 +1657,25 @@ static void ixgbe_configure_tx(struct ixgbe_adapter *adapter) txctrl &= ~IXGBE_DCA_TXCTRL_TX_WB_RO_EN; IXGBE_WRITE_REG(hw, IXGBE_DCA_TXCTRL(j), txctrl); } + if (hw->mac.type == ixgbe_mac_82599EB) { + /* We enable 8 traffic classes, DCB only */ + if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) + IXGBE_WRITE_REG(hw, IXGBE_MTQC, (IXGBE_MTQC_RT_ENA | + IXGBE_MTQC_8TC_8TQ)); + } } -#define IXGBE_SRRCTL_BSIZEHDRSIZE_SHIFT 2 +#define IXGBE_SRRCTL_BSIZEHDRSIZE_SHIFT 2 static void ixgbe_configure_srrctl(struct ixgbe_adapter *adapter, int index) { struct ixgbe_ring *rx_ring; u32 srrctl; - int queue0; + int queue0 = 0; unsigned long mask; - /* program one srrctl register per VMDq index */ - if (adapter->flags & IXGBE_FLAG_VMDQ_ENABLED) { - long shift, len; - mask = (unsigned long) adapter->ring_feature[RING_F_RSS].mask; - len = sizeof(adapter->ring_feature[RING_F_VMDQ].mask) * 8; - shift = find_first_bit(&mask, len); - queue0 = index & mask; - index = (index & mask) >> shift; - /* program one srrctl per RSS queue since RDRXCTL.MVMEN is enabled */ + if (adapter->hw.mac.type == ixgbe_mac_82599EB) { + queue0 = index; } else { mask = (unsigned long) adapter->ring_feature[RING_F_RSS].mask; queue0 = index & mask; @@ -1550,7 +1690,14 @@ static void ixgbe_configure_srrctl(struct ixgbe_adapter *adapter, int index) srrctl &= ~IXGBE_SRRCTL_BSIZEPKT_MASK; if (adapter->flags & IXGBE_FLAG_RX_PS_ENABLED) { - srrctl |= IXGBE_RXBUFFER_2048 >> IXGBE_SRRCTL_BSIZEPKT_SHIFT; + u16 bufsz = IXGBE_RXBUFFER_2048; + /* grow the amount we can receive on large page machines */ + if (bufsz < (PAGE_SIZE / 2)) + bufsz = (PAGE_SIZE / 2); + /* cap the bufsz at our largest descriptor size */ + bufsz = min((u16)IXGBE_MAX_RXBUFFER, bufsz); + + srrctl |= bufsz >> IXGBE_SRRCTL_BSIZEPKT_SHIFT; srrctl |= IXGBE_SRRCTL_DESCTYPE_HDR_SPLIT_ALWAYS; srrctl |= ((IXGBE_RX_HDR_SIZE << IXGBE_SRRCTL_BSIZEHDRSIZE_SHIFT) & @@ -1565,39 +1712,10 @@ static void ixgbe_configure_srrctl(struct ixgbe_adapter *adapter, int index) srrctl |= rx_ring->rx_buf_len >> IXGBE_SRRCTL_BSIZEPKT_SHIFT; } - IXGBE_WRITE_REG(&adapter->hw, IXGBE_SRRCTL(index), srrctl); -} -/** - * ixgbe_get_skb_hdr - helper function for LRO header processing - * @skb: pointer to sk_buff to be added to LRO packet - * @iphdr: pointer to ip header structure - * @tcph: pointer to tcp header structure - * @hdr_flags: pointer to header flags - * @priv: private data - **/ -static int ixgbe_get_skb_hdr(struct sk_buff *skb, void **iphdr, void **tcph, - u64 *hdr_flags, void *priv) -{ - union ixgbe_adv_rx_desc *rx_desc = priv; - - /* Verify that this is a valid IPv4 TCP packet */ - if (!((ixgbe_get_pkt_info(rx_desc) & IXGBE_RXDADV_PKTTYPE_IPV4) && - (ixgbe_get_pkt_info(rx_desc) & IXGBE_RXDADV_PKTTYPE_TCP))) - return -1; - - /* Set network headers */ - skb_reset_network_header(skb); - skb_set_transport_header(skb, ip_hdrlen(skb)); - *iphdr = ip_hdr(skb); - *tcph = tcp_hdr(skb); - *hdr_flags = LRO_IPV4 | LRO_TCP; - return 0; + IXGBE_WRITE_REG(&adapter->hw, IXGBE_SRRCTL(index), srrctl); } -#define PAGE_USE_COUNT(S) (((S) >> PAGE_SHIFT) + \ - (((S) & (PAGE_SIZE - 1)) ? 1 : 0)) - /** * ixgbe_configure_rx - Configure 8259x Receive Unit after Reset * @adapter: board private structure @@ -1616,8 +1734,7 @@ static void ixgbe_configure_rx(struct ixgbe_adapter *adapter) 0xA54F2BEC, 0xEA49AF7C, 0xE214AD3D, 0xB855AABE, 0x6A3E67EA, 0x14364D17, 0x3BED200D}; u32 fctrl, hlreg0; - u32 pages; - u32 reta = 0, mrqc; + u32 reta = 0, mrqc = 0; u32 rdrxctl; int rx_buf_len; @@ -1627,6 +1744,14 @@ static void ixgbe_configure_rx(struct ixgbe_adapter *adapter) /* Set the RX buffer length according to the mode */ if (adapter->flags & IXGBE_FLAG_RX_PS_ENABLED) { rx_buf_len = IXGBE_RX_HDR_SIZE; + if (hw->mac.type == ixgbe_mac_82599EB) { + /* PSRTYPE must be initialized in 82599 */ + u32 psrtype = IXGBE_PSRTYPE_TCPHDR | + IXGBE_PSRTYPE_UDPHDR | + IXGBE_PSRTYPE_IPV4HDR | + IXGBE_PSRTYPE_IPV6HDR; + IXGBE_WRITE_REG(hw, IXGBE_PSRTYPE(0), psrtype); + } } else { if (netdev->mtu <= ETH_DATA_LEN) rx_buf_len = MAXIMUM_ETHERNET_VLAN_SIZE; @@ -1637,6 +1762,7 @@ static void ixgbe_configure_rx(struct ixgbe_adapter *adapter) fctrl = IXGBE_READ_REG(&adapter->hw, IXGBE_FCTRL); fctrl |= IXGBE_FCTRL_BAM; fctrl |= IXGBE_FCTRL_DPF; /* discard pause frames when FC enabled */ + fctrl |= IXGBE_FCTRL_PMCF; IXGBE_WRITE_REG(&adapter->hw, IXGBE_FCTRL, fctrl); hlreg0 = IXGBE_READ_REG(hw, IXGBE_HLREG0); @@ -1646,8 +1772,6 @@ static void ixgbe_configure_rx(struct ixgbe_adapter *adapter) hlreg0 |= IXGBE_HLREG0_JUMBOEN; IXGBE_WRITE_REG(hw, IXGBE_HLREG0, hlreg0); - pages = PAGE_USE_COUNT(adapter->netdev->mtu); - rdlen = adapter->rx_ring[0].count * sizeof(union ixgbe_adv_rx_desc); /* disable receives while setting up the descriptors */ rxctrl = IXGBE_READ_REG(hw, IXGBE_RXCTRL); @@ -1666,37 +1790,44 @@ static void ixgbe_configure_rx(struct ixgbe_adapter *adapter) adapter->rx_ring[i].head = IXGBE_RDH(j); adapter->rx_ring[i].tail = IXGBE_RDT(j); adapter->rx_ring[i].rx_buf_len = rx_buf_len; - /* Intitial LRO Settings */ - adapter->rx_ring[i].lro_mgr.max_aggr = IXGBE_MAX_LRO_AGGREGATE; - adapter->rx_ring[i].lro_mgr.max_desc = IXGBE_MAX_LRO_DESCRIPTORS; - adapter->rx_ring[i].lro_mgr.get_skb_header = ixgbe_get_skb_hdr; - adapter->rx_ring[i].lro_mgr.features = LRO_F_EXTRACT_VLAN_ID; - if (!(adapter->flags & IXGBE_FLAG_IN_NETPOLL)) - adapter->rx_ring[i].lro_mgr.features |= LRO_F_NAPI; - adapter->rx_ring[i].lro_mgr.dev = adapter->netdev; - adapter->rx_ring[i].lro_mgr.ip_summed = CHECKSUM_UNNECESSARY; - adapter->rx_ring[i].lro_mgr.ip_summed_aggr = CHECKSUM_UNNECESSARY; ixgbe_configure_srrctl(adapter, j); } - /* - * For VMDq support of different descriptor types or - * buffer sizes through the use of multiple SRRCTL - * registers, RDRXCTL.MVMEN must be set to 1 - * - * also, the manual doesn't mention it clearly but DCA hints - * will only use queue 0's tags unless this bit is set. Side - * effects of setting this bit are only that SRRCTL must be - * fully programmed [0..15] - */ - if (adapter->flags & - (IXGBE_FLAG_RSS_ENABLED | IXGBE_FLAG_VMDQ_ENABLED)) { + if (hw->mac.type == ixgbe_mac_82598EB) { + /* + * For VMDq support of different descriptor types or + * buffer sizes through the use of multiple SRRCTL + * registers, RDRXCTL.MVMEN must be set to 1 + * + * also, the manual doesn't mention it clearly but DCA hints + * will only use queue 0's tags unless this bit is set. Side + * effects of setting this bit are only that SRRCTL must be + * fully programmed [0..15] + */ rdrxctl = IXGBE_READ_REG(hw, IXGBE_RDRXCTL); rdrxctl |= IXGBE_RDRXCTL_MVMEN; IXGBE_WRITE_REG(hw, IXGBE_RDRXCTL, rdrxctl); } + /* Program MRQC for the distribution of queues */ + if (hw->mac.type == ixgbe_mac_82599EB) { + int mask = adapter->flags & ( + IXGBE_FLAG_RSS_ENABLED + | IXGBE_FLAG_DCB_ENABLED + ); + + switch (mask) { + case (IXGBE_FLAG_RSS_ENABLED): + mrqc = IXGBE_MRQC_RSSEN; + break; + case (IXGBE_FLAG_DCB_ENABLED): + mrqc = IXGBE_MRQC_RT8TCEN; + break; + default: + break; + } + } if (adapter->flags & IXGBE_FLAG_RSS_ENABLED) { /* Fill out redirection table */ for (i = 0, j = 0; i < 128; i++, j++) { @@ -1713,19 +1844,17 @@ static void ixgbe_configure_rx(struct ixgbe_adapter *adapter) for (i = 0; i < 10; i++) IXGBE_WRITE_REG(hw, IXGBE_RSSRK(i), seed[i]); - mrqc = IXGBE_MRQC_RSSEN + if (hw->mac.type == ixgbe_mac_82598EB) + mrqc |= IXGBE_MRQC_RSSEN; /* Perform hash on these packet types */ - | IXGBE_MRQC_RSS_FIELD_IPV4 - | IXGBE_MRQC_RSS_FIELD_IPV4_TCP - | IXGBE_MRQC_RSS_FIELD_IPV4_UDP - | IXGBE_MRQC_RSS_FIELD_IPV6_EX_TCP - | IXGBE_MRQC_RSS_FIELD_IPV6_EX - | IXGBE_MRQC_RSS_FIELD_IPV6 - | IXGBE_MRQC_RSS_FIELD_IPV6_TCP - | IXGBE_MRQC_RSS_FIELD_IPV6_UDP - | IXGBE_MRQC_RSS_FIELD_IPV6_EX_UDP; - IXGBE_WRITE_REG(hw, IXGBE_MRQC, mrqc); + mrqc |= IXGBE_MRQC_RSS_FIELD_IPV4 + | IXGBE_MRQC_RSS_FIELD_IPV4_TCP + | IXGBE_MRQC_RSS_FIELD_IPV4_UDP + | IXGBE_MRQC_RSS_FIELD_IPV6 + | IXGBE_MRQC_RSS_FIELD_IPV6_TCP + | IXGBE_MRQC_RSS_FIELD_IPV6_UDP; } + IXGBE_WRITE_REG(hw, IXGBE_MRQC, mrqc); rxcsum = IXGBE_READ_REG(hw, IXGBE_RXCSUM); @@ -1742,6 +1871,12 @@ static void ixgbe_configure_rx(struct ixgbe_adapter *adapter) } IXGBE_WRITE_REG(hw, IXGBE_RXCSUM, rxcsum); + + if (hw->mac.type == ixgbe_mac_82599EB) { + rdrxctl = IXGBE_READ_REG(hw, IXGBE_RDRXCTL); + rdrxctl |= IXGBE_RDRXCTL_CRCSTRIP; + IXGBE_WRITE_REG(hw, IXGBE_RDRXCTL, rdrxctl); + } } static void ixgbe_vlan_rx_add_vid(struct net_device *netdev, u16 vid) @@ -1775,6 +1910,7 @@ static void ixgbe_vlan_rx_register(struct net_device *netdev, { struct ixgbe_adapter *adapter = netdev_priv(netdev); u32 ctrl; + int i, j; if (!test_bit(__IXGBE_DOWN, &adapter->state)) ixgbe_irq_disable(adapter); @@ -1786,18 +1922,24 @@ static void ixgbe_vlan_rx_register(struct net_device *netdev, * not in DCB mode. */ ctrl = IXGBE_READ_REG(&adapter->hw, IXGBE_VLNCTRL); - ctrl |= IXGBE_VLNCTRL_VME; - ctrl &= ~IXGBE_VLNCTRL_CFIEN; - IXGBE_WRITE_REG(&adapter->hw, IXGBE_VLNCTRL, ctrl); - ixgbe_vlan_rx_add_vid(netdev, 0); - - if (grp) { + if (adapter->hw.mac.type == ixgbe_mac_82598EB) { + ctrl |= IXGBE_VLNCTRL_VME | IXGBE_VLNCTRL_VFE; + ctrl &= ~IXGBE_VLNCTRL_CFIEN; + IXGBE_WRITE_REG(&adapter->hw, IXGBE_VLNCTRL, ctrl); + } else if (adapter->hw.mac.type == ixgbe_mac_82599EB) { + ctrl |= IXGBE_VLNCTRL_VFE; /* enable VLAN tag insert/strip */ ctrl = IXGBE_READ_REG(&adapter->hw, IXGBE_VLNCTRL); - ctrl |= IXGBE_VLNCTRL_VME; ctrl &= ~IXGBE_VLNCTRL_CFIEN; IXGBE_WRITE_REG(&adapter->hw, IXGBE_VLNCTRL, ctrl); + for (i = 0; i < adapter->num_rx_queues; i++) { + j = adapter->rx_ring[i].reg_idx; + ctrl = IXGBE_READ_REG(&adapter->hw, IXGBE_RXDCTL(j)); + ctrl |= IXGBE_RXDCTL_VME; + IXGBE_WRITE_REG(&adapter->hw, IXGBE_RXDCTL(j), ctrl); + } } + ixgbe_vlan_rx_add_vid(netdev, 0); if (!test_bit(__IXGBE_DOWN, &adapter->state)) ixgbe_irq_enable(adapter); @@ -1960,9 +2102,21 @@ static void ixgbe_configure_dcb(struct ixgbe_adapter *adapter) } /* Enable VLAN tag insert/strip */ vlnctrl = IXGBE_READ_REG(hw, IXGBE_VLNCTRL); - vlnctrl |= IXGBE_VLNCTRL_VME | IXGBE_VLNCTRL_VFE; - vlnctrl &= ~IXGBE_VLNCTRL_CFIEN; - IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlnctrl); + if (hw->mac.type == ixgbe_mac_82598EB) { + vlnctrl |= IXGBE_VLNCTRL_VME | IXGBE_VLNCTRL_VFE; + vlnctrl &= ~IXGBE_VLNCTRL_CFIEN; + IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlnctrl); + } else if (hw->mac.type == ixgbe_mac_82599EB) { + vlnctrl |= IXGBE_VLNCTRL_VFE; + vlnctrl &= ~IXGBE_VLNCTRL_CFIEN; + IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlnctrl); + for (i = 0; i < adapter->num_rx_queues; i++) { + j = adapter->rx_ring[i].reg_idx; + vlnctrl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(j)); + vlnctrl |= IXGBE_RXDCTL_VME; + IXGBE_WRITE_REG(hw, IXGBE_RXDCTL(j), vlnctrl); + } + } hw->mac.ops.set_vfta(&adapter->hw, 0, 0, true); } @@ -1993,13 +2147,115 @@ static void ixgbe_configure(struct ixgbe_adapter *adapter) (adapter->rx_ring[i].count - 1)); } +static inline bool ixgbe_is_sfp(struct ixgbe_hw *hw) +{ + switch (hw->phy.type) { + case ixgbe_phy_sfp_avago: + case ixgbe_phy_sfp_ftl: + case ixgbe_phy_sfp_intel: + case ixgbe_phy_sfp_unknown: + case ixgbe_phy_tw_tyco: + case ixgbe_phy_tw_unknown: + return true; + default: + return false; + } +} + +/** + * ixgbe_sfp_link_config - set up SFP+ link + * @adapter: pointer to private adapter struct + **/ +static void ixgbe_sfp_link_config(struct ixgbe_adapter *adapter) +{ + struct ixgbe_hw *hw = &adapter->hw; + + if (hw->phy.multispeed_fiber) { + /* + * In multispeed fiber setups, the device may not have + * had a physical connection when the driver loaded. + * If that's the case, the initial link configuration + * couldn't get the MAC into 10G or 1G mode, so we'll + * never have a link status change interrupt fire. + * We need to try and force an autonegotiation + * session, then bring up link. + */ + hw->mac.ops.setup_sfp(hw); + if (!(adapter->flags & IXGBE_FLAG_IN_SFP_LINK_TASK)) + schedule_work(&adapter->multispeed_fiber_task); + } else { + /* + * Direct Attach Cu and non-multispeed fiber modules + * still need to be configured properly prior to + * attempting link. + */ + if (!(adapter->flags & IXGBE_FLAG_IN_SFP_MOD_TASK)) + schedule_work(&adapter->sfp_config_module_task); + } +} + +/** + * ixgbe_non_sfp_link_config - set up non-SFP+ link + * @hw: pointer to private hardware struct + * + * Returns 0 on success, negative on failure + **/ +static int ixgbe_non_sfp_link_config(struct ixgbe_hw *hw) +{ + u32 autoneg; + bool link_up = false; + u32 ret = IXGBE_ERR_LINK_SETUP; + + if (hw->mac.ops.check_link) + ret = hw->mac.ops.check_link(hw, &autoneg, &link_up, false); + + if (ret) + goto link_cfg_out; + + if (hw->mac.ops.get_link_capabilities) + ret = hw->mac.ops.get_link_capabilities(hw, &autoneg, + &hw->mac.autoneg); + if (ret) + goto link_cfg_out; + + if (hw->mac.ops.setup_link_speed) + ret = hw->mac.ops.setup_link_speed(hw, autoneg, true, link_up); +link_cfg_out: + return ret; +} + +#define IXGBE_MAX_RX_DESC_POLL 10 +static inline void ixgbe_rx_desc_queue_enable(struct ixgbe_adapter *adapter, + int rxr) +{ + int j = adapter->rx_ring[rxr].reg_idx; + int k; + + for (k = 0; k < IXGBE_MAX_RX_DESC_POLL; k++) { + if (IXGBE_READ_REG(&adapter->hw, + IXGBE_RXDCTL(j)) & IXGBE_RXDCTL_ENABLE) + break; + else + msleep(1); + } + if (k >= IXGBE_MAX_RX_DESC_POLL) { + DPRINTK(DRV, ERR, "RXDCTL.ENABLE on Rx queue %d " + "not set within the polling period\n", rxr); + } + ixgbe_release_rx_desc(&adapter->hw, &adapter->rx_ring[rxr], + (adapter->rx_ring[rxr].count - 1)); +} + static int ixgbe_up_complete(struct ixgbe_adapter *adapter) { struct net_device *netdev = adapter->netdev; struct ixgbe_hw *hw = &adapter->hw; int i, j = 0; + int num_rx_rings = adapter->num_rx_queues; + int err; int max_frame = netdev->mtu + ETH_HLEN + ETH_FCS_LEN; u32 txdctl, rxdctl, mhadd; + u32 dmatxctl; u32 gpie; ixgbe_get_hw_control(adapter); @@ -2031,6 +2287,13 @@ static int ixgbe_up_complete(struct ixgbe_adapter *adapter) IXGBE_WRITE_REG(hw, IXGBE_GPIE, gpie); } + if (hw->mac.type == ixgbe_mac_82599EB) { + gpie = IXGBE_READ_REG(hw, IXGBE_GPIE); + gpie |= IXGBE_SDP1_GPIEN; + gpie |= IXGBE_SDP2_GPIEN; + IXGBE_WRITE_REG(hw, IXGBE_GPIE, gpie); + } + mhadd = IXGBE_READ_REG(hw, IXGBE_MHADD); if (max_frame != (mhadd >> IXGBE_MHADD_MFS_SHIFT)) { mhadd &= ~IXGBE_MHADD_MFS_MASK; @@ -2044,11 +2307,23 @@ static int ixgbe_up_complete(struct ixgbe_adapter *adapter) txdctl = IXGBE_READ_REG(hw, IXGBE_TXDCTL(j)); /* enable WTHRESH=8 descriptors, to encourage burst writeback */ txdctl |= (8 << 16); + IXGBE_WRITE_REG(hw, IXGBE_TXDCTL(j), txdctl); + } + + if (hw->mac.type == ixgbe_mac_82599EB) { + /* DMATXCTL.EN must be set after all Tx queue config is done */ + dmatxctl = IXGBE_READ_REG(hw, IXGBE_DMATXCTL); + dmatxctl |= IXGBE_DMATXCTL_TE; + IXGBE_WRITE_REG(hw, IXGBE_DMATXCTL, dmatxctl); + } + for (i = 0; i < adapter->num_tx_queues; i++) { + j = adapter->tx_ring[i].reg_idx; + txdctl = IXGBE_READ_REG(hw, IXGBE_TXDCTL(j)); txdctl |= IXGBE_TXDCTL_ENABLE; IXGBE_WRITE_REG(hw, IXGBE_TXDCTL(j), txdctl); } - for (i = 0; i < adapter->num_rx_queues; i++) { + for (i = 0; i < num_rx_rings; i++) { j = adapter->rx_ring[i].reg_idx; rxdctl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(j)); /* enable PTHRESH=32 descriptors (half the internal cache) @@ -2057,19 +2332,22 @@ static int ixgbe_up_complete(struct ixgbe_adapter *adapter) rxdctl |= 0x0020; rxdctl |= IXGBE_RXDCTL_ENABLE; IXGBE_WRITE_REG(hw, IXGBE_RXDCTL(j), rxdctl); + if (hw->mac.type == ixgbe_mac_82599EB) + ixgbe_rx_desc_queue_enable(adapter, i); } /* enable all receives */ rxdctl = IXGBE_READ_REG(hw, IXGBE_RXCTRL); - rxdctl |= (IXGBE_RXCTRL_DMBYPS | IXGBE_RXCTRL_RXEN); - IXGBE_WRITE_REG(hw, IXGBE_RXCTRL, rxdctl); + if (hw->mac.type == ixgbe_mac_82598EB) + rxdctl |= (IXGBE_RXCTRL_DMBYPS | IXGBE_RXCTRL_RXEN); + else + rxdctl |= IXGBE_RXCTRL_RXEN; + hw->mac.ops.enable_rx_dma(hw, rxdctl); if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) ixgbe_configure_msix(adapter); else ixgbe_configure_msi_and_legacy(adapter); - ixgbe_napi_add_all(adapter); - clear_bit(__IXGBE_DOWN, &adapter->state); ixgbe_napi_enable_all(adapter); @@ -2078,6 +2356,28 @@ static int ixgbe_up_complete(struct ixgbe_adapter *adapter) ixgbe_irq_enable(adapter); + /* + * For hot-pluggable SFP+ devices, a new SFP+ module may have + * arrived before interrupts were enabled. We need to kick off + * the SFP+ module setup first, then try to bring up link. + * If we're not hot-pluggable SFP+, we just need to configure link + * and bring it up. + */ + err = hw->phy.ops.identify(hw); + if (err == IXGBE_ERR_SFP_NOT_SUPPORTED) { + DPRINTK(PROBE, ERR, "PHY not supported on this NIC %d\n", err); + ixgbe_down(adapter); + return err; + } + + if (ixgbe_is_sfp(hw)) { + ixgbe_sfp_link_config(adapter); + } else { + err = ixgbe_non_sfp_link_config(hw); + if (err) + DPRINTK(PROBE, ERR, "link_config FAILED %d\n", err); + } + /* enable transmits */ netif_tx_start_all_queues(netdev); @@ -2104,6 +2404,8 @@ int ixgbe_up(struct ixgbe_adapter *adapter) /* hardware has been reset, we need to reload some things */ ixgbe_configure(adapter); + ixgbe_napi_add_all(adapter); + return ixgbe_up_complete(adapter); } @@ -2165,8 +2467,10 @@ static void ixgbe_clean_rx_ring(struct ixgbe_adapter *adapter, rx_ring->next_to_clean = 0; rx_ring->next_to_use = 0; - writel(0, adapter->hw.hw_addr + rx_ring->head); - writel(0, adapter->hw.hw_addr + rx_ring->tail); + if (rx_ring->head) + writel(0, adapter->hw.hw_addr + rx_ring->head); + if (rx_ring->tail) + writel(0, adapter->hw.hw_addr + rx_ring->tail); } /** @@ -2197,8 +2501,10 @@ static void ixgbe_clean_tx_ring(struct ixgbe_adapter *adapter, tx_ring->next_to_use = 0; tx_ring->next_to_clean = 0; - writel(0, adapter->hw.hw_addr + tx_ring->head); - writel(0, adapter->hw.hw_addr + tx_ring->tail); + if (tx_ring->head) + writel(0, adapter->hw.hw_addr + tx_ring->head); + if (tx_ring->tail) + writel(0, adapter->hw.hw_addr + tx_ring->tail); } /** @@ -2261,6 +2567,11 @@ void ixgbe_down(struct ixgbe_adapter *adapter) IXGBE_WRITE_REG(hw, IXGBE_TXDCTL(j), (txdctl & ~IXGBE_TXDCTL_ENABLE)); } + /* Disable the Tx DMA engine on 82599 */ + if (hw->mac.type == ixgbe_mac_82599EB) + IXGBE_WRITE_REG(hw, IXGBE_DMATXCTL, + (IXGBE_READ_REG(hw, IXGBE_DMATXCTL) & + ~IXGBE_DMATXCTL_TE)); netif_carrier_off(netdev); @@ -2297,10 +2608,10 @@ void ixgbe_down(struct ixgbe_adapter *adapter) **/ static int ixgbe_poll(struct napi_struct *napi, int budget) { - struct ixgbe_q_vector *q_vector = container_of(napi, - struct ixgbe_q_vector, napi); + struct ixgbe_q_vector *q_vector = + container_of(napi, struct ixgbe_q_vector, napi); struct ixgbe_adapter *adapter = q_vector->adapter; - int tx_cleaned, work_done = 0; + int tx_clean_complete, work_done = 0; #ifdef CONFIG_IXGBE_DCA if (adapter->flags & IXGBE_FLAG_DCA_ENABLED) { @@ -2309,19 +2620,19 @@ static int ixgbe_poll(struct napi_struct *napi, int budget) } #endif - tx_cleaned = ixgbe_clean_tx_irq(adapter, adapter->tx_ring); - ixgbe_clean_rx_irq(adapter, adapter->rx_ring, &work_done, budget); + tx_clean_complete = ixgbe_clean_tx_irq(adapter, adapter->tx_ring); + ixgbe_clean_rx_irq(q_vector, adapter->rx_ring, &work_done, budget); - if (tx_cleaned) + if (!tx_clean_complete) work_done = budget; /* If budget not fully consumed, exit the polling mode */ if (work_done < budget) { - netif_rx_complete(napi); - if (adapter->itr_setting & 3) + napi_complete(napi); + if (adapter->itr_setting & 1) ixgbe_set_itr(adapter); if (!test_bit(__IXGBE_DOWN, &adapter->state)) - ixgbe_irq_enable(adapter); + ixgbe_irq_enable_queues(adapter); } return work_done; } @@ -2353,68 +2664,76 @@ static void ixgbe_reset_task(struct work_struct *work) ixgbe_reinit_locked(adapter); } -static void ixgbe_set_num_queues(struct ixgbe_adapter *adapter) +#ifdef CONFIG_IXGBE_DCB +static inline bool ixgbe_set_dcb_queues(struct ixgbe_adapter *adapter) { - int nrq = 1, ntq = 1; - int feature_mask = 0, rss_i, rss_m; - int dcb_i, dcb_m; + bool ret = false; - /* Number of supported queues */ - switch (adapter->hw.mac.type) { - case ixgbe_mac_82598EB: - dcb_i = adapter->ring_feature[RING_F_DCB].indices; - dcb_m = 0; - rss_i = adapter->ring_feature[RING_F_RSS].indices; - rss_m = 0; - feature_mask |= IXGBE_FLAG_RSS_ENABLED; - feature_mask |= IXGBE_FLAG_DCB_ENABLED; - - switch (adapter->flags & feature_mask) { - case (IXGBE_FLAG_RSS_ENABLED | IXGBE_FLAG_DCB_ENABLED): - dcb_m = 0x7 << 3; - rss_i = min(8, rss_i); - rss_m = 0x7; - nrq = dcb_i * rss_i; - ntq = min(MAX_TX_QUEUES, dcb_i * rss_i); - break; - case (IXGBE_FLAG_DCB_ENABLED): - dcb_m = 0x7 << 3; - nrq = dcb_i; - ntq = dcb_i; - break; - case (IXGBE_FLAG_RSS_ENABLED): - rss_m = 0xF; - nrq = rss_i; - ntq = rss_i; - break; - case 0: - default: - dcb_i = 0; - dcb_m = 0; - rss_i = 0; - rss_m = 0; - nrq = 1; - ntq = 1; - break; - } + if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) { + adapter->ring_feature[RING_F_DCB].mask = 0x7 << 3; + adapter->num_rx_queues = + adapter->ring_feature[RING_F_DCB].indices; + adapter->num_tx_queues = + adapter->ring_feature[RING_F_DCB].indices; + ret = true; + } else { + ret = false; + } + + return ret; +} +#endif - /* Sanity check, we should never have zero queues */ - nrq = (nrq ?:1); - ntq = (ntq ?:1); +/** + * ixgbe_set_rss_queues: Allocate queues for RSS + * @adapter: board private structure to initialize + * + * This is our "base" multiqueue mode. RSS (Receive Side Scaling) will try + * to allocate one Rx queue per CPU, and if available, one Tx queue per CPU. + * + **/ +static inline bool ixgbe_set_rss_queues(struct ixgbe_adapter *adapter) +{ + bool ret = false; - adapter->ring_feature[RING_F_DCB].indices = dcb_i; - adapter->ring_feature[RING_F_DCB].mask = dcb_m; - adapter->ring_feature[RING_F_RSS].indices = rss_i; - adapter->ring_feature[RING_F_RSS].mask = rss_m; - break; - default: - nrq = 1; - ntq = 1; - break; + if (adapter->flags & IXGBE_FLAG_RSS_ENABLED) { + adapter->ring_feature[RING_F_RSS].mask = 0xF; + adapter->num_rx_queues = + adapter->ring_feature[RING_F_RSS].indices; + adapter->num_tx_queues = + adapter->ring_feature[RING_F_RSS].indices; + ret = true; + } else { + ret = false; } - adapter->num_rx_queues = nrq; - adapter->num_tx_queues = ntq; + return ret; +} + +/* + * ixgbe_set_num_queues: Allocate queues for device, feature dependant + * @adapter: board private structure to initialize + * + * This is the top level queue allocation routine. The order here is very + * important, starting with the "most" number of features turned on at once, + * and ending with the smallest set of features. This way large combinations + * can be allocated if they're turned on, and smaller combinations are the + * fallthrough conditions. + * + **/ +static void ixgbe_set_num_queues(struct ixgbe_adapter *adapter) +{ + /* Start with base case */ + adapter->num_rx_queues = 1; + adapter->num_tx_queues = 1; + +#ifdef CONFIG_IXGBE_DCB + if (ixgbe_set_dcb_queues(adapter)) + return; + +#endif + if (ixgbe_set_rss_queues(adapter)) + return; } static void ixgbe_acquire_msix_vectors(struct ixgbe_adapter *adapter, @@ -2460,71 +2779,104 @@ static void ixgbe_acquire_msix_vectors(struct ixgbe_adapter *adapter, ixgbe_set_num_queues(adapter); } else { adapter->flags |= IXGBE_FLAG_MSIX_ENABLED; /* Woot! */ - adapter->num_msix_vectors = vectors; + /* + * Adjust for only the vectors we'll use, which is minimum + * of max_msix_q_vectors + NON_Q_VECTORS, or the number of + * vectors we were allocated. + */ + adapter->num_msix_vectors = min(vectors, + adapter->max_msix_q_vectors + NON_Q_VECTORS); } } /** - * ixgbe_cache_ring_register - Descriptor ring to register mapping + * ixgbe_cache_ring_rss - Descriptor ring to register mapping for RSS * @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. + * Cache the descriptor ring offsets for RSS to the assigned rings. + * **/ -static void ixgbe_cache_ring_register(struct ixgbe_adapter *adapter) +static inline bool ixgbe_cache_ring_rss(struct ixgbe_adapter *adapter) { - int feature_mask = 0, rss_i; - int i, txr_idx, rxr_idx; - int dcb_i; + int i; + bool ret = false; - /* Number of supported queues */ - switch (adapter->hw.mac.type) { - case ixgbe_mac_82598EB: - dcb_i = adapter->ring_feature[RING_F_DCB].indices; - rss_i = adapter->ring_feature[RING_F_RSS].indices; - txr_idx = 0; - rxr_idx = 0; - feature_mask |= IXGBE_FLAG_DCB_ENABLED; - feature_mask |= IXGBE_FLAG_RSS_ENABLED; - switch (adapter->flags & feature_mask) { - case (IXGBE_FLAG_RSS_ENABLED | IXGBE_FLAG_DCB_ENABLED): - for (i = 0; i < dcb_i; i++) { - int j; - /* Rx first */ - for (j = 0; j < adapter->num_rx_queues; j++) { - adapter->rx_ring[rxr_idx].reg_idx = - i << 3 | j; - rxr_idx++; - } - /* Tx now */ - for (j = 0; j < adapter->num_tx_queues; j++) { - adapter->tx_ring[txr_idx].reg_idx = - i << 2 | (j >> 1); - if (j & 1) - txr_idx++; - } - } - case (IXGBE_FLAG_DCB_ENABLED): + if (adapter->flags & IXGBE_FLAG_RSS_ENABLED) { + 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; + ret = true; + } else { + ret = false; + } + + return ret; +} + +#ifdef CONFIG_IXGBE_DCB +/** + * ixgbe_cache_ring_dcb - Descriptor ring to register mapping for DCB + * @adapter: board private structure to initialize + * + * Cache the descriptor ring offsets for DCB to the assigned rings. + * + **/ +static inline bool ixgbe_cache_ring_dcb(struct ixgbe_adapter *adapter) +{ + int i; + bool ret = false; + int dcb_i = adapter->ring_feature[RING_F_DCB].indices; + + if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) { + if (adapter->hw.mac.type == ixgbe_mac_82598EB) { /* the number of queues is assumed to be symmetric */ for (i = 0; i < dcb_i; i++) { adapter->rx_ring[i].reg_idx = i << 3; adapter->tx_ring[i].reg_idx = i << 2; } - break; - case (IXGBE_FLAG_RSS_ENABLED): - 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; - case 0: - default: - break; + ret = true; + } else if (adapter->hw.mac.type == ixgbe_mac_82599EB) { + for (i = 0; i < dcb_i; i++) { + adapter->rx_ring[i].reg_idx = i << 4; + adapter->tx_ring[i].reg_idx = i << 4; + } + ret = true; + } else { + ret = false; } - break; - default: - break; + } else { + ret = false; } + + return ret; +} +#endif + +/** + * ixgbe_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. + * + * Note, the order the various feature calls is important. It must start with + * the "most" features enabled at the same time, then trickle down to the + * least amount of features turned on at once. + **/ +static void ixgbe_cache_ring_register(struct ixgbe_adapter *adapter) +{ + /* start with default case */ + adapter->rx_ring[0].reg_idx = 0; + adapter->tx_ring[0].reg_idx = 0; + +#ifdef CONFIG_IXGBE_DCB + if (ixgbe_cache_ring_dcb(adapter)) + return; + +#endif + if (ixgbe_cache_ring_rss(adapter)) + return; } /** @@ -2532,7 +2884,8 @@ static void ixgbe_cache_ring_register(struct ixgbe_adapter *adapter) * @adapter: board private structure to initialize * * We allocate one ring per queue at run-time since we don't know the - * number of queues at compile-time. + * number of queues at compile-time. The polling_netdev array is + * intended for Multiqueue, but should work fine with a single queue. **/ static int ixgbe_alloc_queues(struct ixgbe_adapter *adapter) { @@ -2577,6 +2930,7 @@ err_tx_ring_allocation: **/ static int ixgbe_set_interrupt_capability(struct ixgbe_adapter *adapter) { + struct ixgbe_hw *hw = &adapter->hw; int err = 0; int vector, v_budget; @@ -2591,12 +2945,12 @@ static int ixgbe_set_interrupt_capability(struct ixgbe_adapter *adapter) /* * At the same time, hardware can only support a maximum of - * MAX_MSIX_COUNT vectors. With features such as RSS and VMDq, - * we can easily reach upwards of 64 Rx descriptor queues and - * 32 Tx queues. Thus, we cap it off in those rare cases where - * the cpu count also exceeds our vector limit. + * hw.mac->max_msix_vectors vectors. With features + * such as RSS and VMDq, we can easily surpass the number of Rx and Tx + * descriptor queues supported by our device. Thus, we cap it off in + * those rare cases where the cpu count also exceeds our vector limit. */ - v_budget = min(v_budget, MAX_MSIX_COUNT); + v_budget = min(v_budget, (int)hw->mac.max_msix_vectors); /* A failure in MSI-X entry allocation isn't fatal, but it does * mean we disable MSI-X capabilities of the adapter. */ @@ -2711,7 +3065,8 @@ static void ixgbe_sfp_timer(unsigned long data) { struct ixgbe_adapter *adapter = (struct ixgbe_adapter *)data; - /* Do the sfp_timer outside of interrupt context due to the + /* + * Do the sfp_timer outside of interrupt context due to the * delays that sfp+ detection requires */ schedule_work(&adapter->sfp_task); @@ -2785,6 +3140,10 @@ static int __devinit ixgbe_sw_init(struct ixgbe_adapter *adapter) adapter->ring_feature[RING_F_RSS].indices = rss; adapter->flags |= IXGBE_FLAG_RSS_ENABLED; adapter->ring_feature[RING_F_DCB].indices = IXGBE_MAX_DCB_INDICES; + if (hw->mac.type == ixgbe_mac_82598EB) + adapter->max_msix_q_vectors = MAX_MSIX_Q_VECTORS_82598; + else if (hw->mac.type == ixgbe_mac_82599EB) + adapter->max_msix_q_vectors = MAX_MSIX_Q_VECTORS_82599; #ifdef CONFIG_IXGBE_DCB /* Configure DCB traffic classes */ @@ -2805,20 +3164,15 @@ static int __devinit ixgbe_sw_init(struct ixgbe_adapter *adapter) adapter->ring_feature[RING_F_DCB].indices); #endif - if (hw->mac.ops.get_media_type && - (hw->mac.ops.get_media_type(hw) == ixgbe_media_type_copper)) - adapter->flags |= IXGBE_FLAG_FAN_FAIL_CAPABLE; /* default flow control settings */ - hw->fc.original_type = ixgbe_fc_none; - hw->fc.type = ixgbe_fc_none; + hw->fc.requested_mode = ixgbe_fc_full; + hw->fc.current_mode = ixgbe_fc_full; /* init for ethtool output */ hw->fc.high_water = IXGBE_DEFAULT_FCRTH; hw->fc.low_water = IXGBE_DEFAULT_FCRTL; hw->fc.pause_time = IXGBE_DEFAULT_FCPAUSE; hw->fc.send_xon = true; - - /* select 10G link by default */ - hw->mac.link_mode_select = IXGBE_AUTOC_LMS_10G_LINK_NO_AN; + hw->fc.disable_fc_autoneg = false; /* enable itr by default in dynamic mode */ adapter->itr_setting = 1; @@ -2866,8 +3220,7 @@ int ixgbe_setup_tx_resources(struct ixgbe_adapter *adapter, memset(tx_ring->tx_buffer_info, 0, size); /* round up to nearest 4K */ - tx_ring->size = tx_ring->count * sizeof(union ixgbe_adv_tx_desc) + - sizeof(u32); + tx_ring->size = tx_ring->count * sizeof(union ixgbe_adv_tx_desc); tx_ring->size = ALIGN(tx_ring->size, 4096); tx_ring->desc = pci_alloc_consistent(pdev, tx_ring->size, @@ -2926,12 +3279,6 @@ int ixgbe_setup_rx_resources(struct ixgbe_adapter *adapter, struct pci_dev *pdev = adapter->pdev; int size; - size = sizeof(struct net_lro_desc) * IXGBE_MAX_LRO_DESCRIPTORS; - rx_ring->lro_mgr.lro_arr = vmalloc(size); - if (!rx_ring->lro_mgr.lro_arr) - return -ENOMEM; - memset(rx_ring->lro_mgr.lro_arr, 0, size); - size = sizeof(struct ixgbe_rx_buffer) * rx_ring->count; rx_ring->rx_buffer_info = vmalloc(size); if (!rx_ring->rx_buffer_info) { @@ -2960,8 +3307,6 @@ int ixgbe_setup_rx_resources(struct ixgbe_adapter *adapter, return 0; alloc_failed: - vfree(rx_ring->lro_mgr.lro_arr); - rx_ring->lro_mgr.lro_arr = NULL; return -ENOMEM; } @@ -3024,7 +3369,8 @@ static void ixgbe_free_all_tx_resources(struct ixgbe_adapter *adapter) int i; for (i = 0; i < adapter->num_tx_queues; i++) - ixgbe_free_tx_resources(adapter, &adapter->tx_ring[i]); + if (adapter->tx_ring[i].desc) + ixgbe_free_tx_resources(adapter, &adapter->tx_ring[i]); } /** @@ -3039,9 +3385,6 @@ void ixgbe_free_rx_resources(struct ixgbe_adapter *adapter, { struct pci_dev *pdev = adapter->pdev; - vfree(rx_ring->lro_mgr.lro_arr); - rx_ring->lro_mgr.lro_arr = NULL; - ixgbe_clean_rx_ring(adapter, rx_ring); vfree(rx_ring->rx_buffer_info); @@ -3063,7 +3406,8 @@ static void ixgbe_free_all_rx_resources(struct ixgbe_adapter *adapter) int i; for (i = 0; i < adapter->num_rx_queues; i++) - ixgbe_free_rx_resources(adapter, &adapter->rx_ring[i]); + if (adapter->rx_ring[i].desc) + ixgbe_free_rx_resources(adapter, &adapter->rx_ring[i]); } /** @@ -3126,6 +3470,8 @@ static int ixgbe_open(struct net_device *netdev) ixgbe_configure(adapter); + ixgbe_napi_add_all(adapter); + err = ixgbe_request_irq(adapter); if (err) goto err_req_irq; @@ -3142,10 +3488,10 @@ err_up: ixgbe_release_hw_control(adapter); ixgbe_free_irq(adapter); err_req_irq: - ixgbe_free_all_rx_resources(adapter); err_setup_rx: - ixgbe_free_all_tx_resources(adapter); + ixgbe_free_all_rx_resources(adapter); err_setup_tx: + ixgbe_free_all_tx_resources(adapter); ixgbe_reset(adapter); return err; @@ -3180,6 +3526,7 @@ static int ixgbe_close(struct net_device *netdev) /** * ixgbe_napi_add_all - prep napi structs for use * @adapter: private struct + * * helper function to napi_add each possible q_vector->napi */ void ixgbe_napi_add_all(struct ixgbe_adapter *adapter) @@ -3252,7 +3599,6 @@ static int ixgbe_resume(struct pci_dev *pdev) return err; } - ixgbe_napi_add_all(adapter); ixgbe_reset(adapter); if (netif_running(netdev)) { @@ -3271,6 +3617,9 @@ static int ixgbe_suspend(struct pci_dev *pdev, pm_message_t state) { struct net_device *netdev = pci_get_drvdata(pdev); struct ixgbe_adapter *adapter = netdev_priv(netdev); + struct ixgbe_hw *hw = &adapter->hw; + u32 ctrl, fctrl; + u32 wufc = adapter->wol; #ifdef CONFIG_PM int retval = 0; #endif @@ -3293,10 +3642,35 @@ static int ixgbe_suspend(struct pci_dev *pdev, pm_message_t state) retval = pci_save_state(pdev); if (retval) return retval; + #endif + if (wufc) { + ixgbe_set_rx_mode(netdev); - pci_enable_wake(pdev, PCI_D3hot, 0); - pci_enable_wake(pdev, PCI_D3cold, 0); + /* turn on all-multi mode if wake on multicast is enabled */ + if (wufc & IXGBE_WUFC_MC) { + fctrl = IXGBE_READ_REG(hw, IXGBE_FCTRL); + fctrl |= IXGBE_FCTRL_MPE; + IXGBE_WRITE_REG(hw, IXGBE_FCTRL, fctrl); + } + + ctrl = IXGBE_READ_REG(hw, IXGBE_CTRL); + ctrl |= IXGBE_CTRL_GIO_DIS; + IXGBE_WRITE_REG(hw, IXGBE_CTRL, ctrl); + + IXGBE_WRITE_REG(hw, IXGBE_WUFC, wufc); + } else { + IXGBE_WRITE_REG(hw, IXGBE_WUC, 0); + IXGBE_WRITE_REG(hw, IXGBE_WUFC, 0); + } + + if (wufc && hw->mac.type == ixgbe_mac_82599EB) { + pci_enable_wake(pdev, PCI_D3hot, 1); + pci_enable_wake(pdev, PCI_D3cold, 1); + } else { + pci_enable_wake(pdev, PCI_D3hot, 0); + pci_enable_wake(pdev, PCI_D3cold, 0); + } ixgbe_release_hw_control(adapter); @@ -3322,6 +3696,12 @@ void ixgbe_update_stats(struct ixgbe_adapter *adapter) u64 total_mpc = 0; u32 i, missed_rx = 0, mpc, bprc, lxon, lxoff, xon_off_tot; + if (hw->mac.type == ixgbe_mac_82599EB) { + for (i = 0; i < 16; i++) + adapter->hw_rx_no_dma_resources += + IXGBE_READ_REG(hw, IXGBE_QPRDC(i)); + } + adapter->stats.crcerrs += IXGBE_READ_REG(hw, IXGBE_CRCERRS); for (i = 0; i < 8; i++) { /* for packet buffers not used, the register should read 0 */ @@ -3329,32 +3709,55 @@ void ixgbe_update_stats(struct ixgbe_adapter *adapter) missed_rx += mpc; adapter->stats.mpc[i] += mpc; total_mpc += adapter->stats.mpc[i]; - adapter->stats.rnbc[i] += IXGBE_READ_REG(hw, IXGBE_RNBC(i)); + if (hw->mac.type == ixgbe_mac_82598EB) + adapter->stats.rnbc[i] += IXGBE_READ_REG(hw, IXGBE_RNBC(i)); adapter->stats.qptc[i] += IXGBE_READ_REG(hw, IXGBE_QPTC(i)); adapter->stats.qbtc[i] += IXGBE_READ_REG(hw, IXGBE_QBTC(i)); adapter->stats.qprc[i] += IXGBE_READ_REG(hw, IXGBE_QPRC(i)); adapter->stats.qbrc[i] += IXGBE_READ_REG(hw, IXGBE_QBRC(i)); - adapter->stats.pxonrxc[i] += IXGBE_READ_REG(hw, - IXGBE_PXONRXC(i)); + if (hw->mac.type == ixgbe_mac_82599EB) { + adapter->stats.pxonrxc[i] += IXGBE_READ_REG(hw, + IXGBE_PXONRXCNT(i)); + adapter->stats.pxoffrxc[i] += IXGBE_READ_REG(hw, + IXGBE_PXOFFRXCNT(i)); + adapter->stats.qprdc[i] += IXGBE_READ_REG(hw, IXGBE_QPRDC(i)); + } else { + adapter->stats.pxonrxc[i] += IXGBE_READ_REG(hw, + IXGBE_PXONRXC(i)); + adapter->stats.pxoffrxc[i] += IXGBE_READ_REG(hw, + IXGBE_PXOFFRXC(i)); + } adapter->stats.pxontxc[i] += IXGBE_READ_REG(hw, IXGBE_PXONTXC(i)); - adapter->stats.pxoffrxc[i] += IXGBE_READ_REG(hw, - IXGBE_PXOFFRXC(i)); adapter->stats.pxofftxc[i] += IXGBE_READ_REG(hw, - IXGBE_PXOFFTXC(i)); + IXGBE_PXOFFTXC(i)); } adapter->stats.gprc += IXGBE_READ_REG(hw, IXGBE_GPRC); /* work around hardware counting issue */ adapter->stats.gprc -= missed_rx; /* 82598 hardware only has a 32 bit counter in the high register */ - adapter->stats.gorc += IXGBE_READ_REG(hw, IXGBE_GORCH); - adapter->stats.gotc += IXGBE_READ_REG(hw, IXGBE_GOTCH); - adapter->stats.tor += IXGBE_READ_REG(hw, IXGBE_TORH); + if (hw->mac.type == ixgbe_mac_82599EB) { + adapter->stats.gorc += IXGBE_READ_REG(hw, IXGBE_GORCL); + IXGBE_READ_REG(hw, IXGBE_GORCH); /* to clear */ + adapter->stats.gotc += IXGBE_READ_REG(hw, IXGBE_GOTCL); + IXGBE_READ_REG(hw, IXGBE_GOTCH); /* to clear */ + adapter->stats.tor += IXGBE_READ_REG(hw, IXGBE_TORL); + IXGBE_READ_REG(hw, IXGBE_TORH); /* to clear */ + adapter->stats.lxonrxc += IXGBE_READ_REG(hw, IXGBE_LXONRXCNT); + adapter->stats.lxoffrxc += IXGBE_READ_REG(hw, IXGBE_LXOFFRXCNT); + } else { + adapter->stats.lxonrxc += IXGBE_READ_REG(hw, IXGBE_LXONRXC); + adapter->stats.lxoffrxc += IXGBE_READ_REG(hw, IXGBE_LXOFFRXC); + adapter->stats.gorc += IXGBE_READ_REG(hw, IXGBE_GORCH); + adapter->stats.gotc += IXGBE_READ_REG(hw, IXGBE_GOTCH); + adapter->stats.tor += IXGBE_READ_REG(hw, IXGBE_TORH); + } bprc = IXGBE_READ_REG(hw, IXGBE_BPRC); adapter->stats.bprc += bprc; adapter->stats.mprc += IXGBE_READ_REG(hw, IXGBE_MPRC); - adapter->stats.mprc -= bprc; + if (hw->mac.type == ixgbe_mac_82598EB) + adapter->stats.mprc -= bprc; adapter->stats.roc += IXGBE_READ_REG(hw, IXGBE_ROC); adapter->stats.prc64 += IXGBE_READ_REG(hw, IXGBE_PRC64); adapter->stats.prc127 += IXGBE_READ_REG(hw, IXGBE_PRC127); @@ -3363,8 +3766,6 @@ void ixgbe_update_stats(struct ixgbe_adapter *adapter) adapter->stats.prc1023 += IXGBE_READ_REG(hw, IXGBE_PRC1023); adapter->stats.prc1522 += IXGBE_READ_REG(hw, IXGBE_PRC1522); adapter->stats.rlec += IXGBE_READ_REG(hw, IXGBE_RLEC); - adapter->stats.lxonrxc += IXGBE_READ_REG(hw, IXGBE_LXONRXC); - adapter->stats.lxoffrxc += IXGBE_READ_REG(hw, IXGBE_LXOFFRXC); lxon = IXGBE_READ_REG(hw, IXGBE_LXONTXC); adapter->stats.lxontxc += lxon; lxoff = IXGBE_READ_REG(hw, IXGBE_LXOFFTXC); @@ -3416,17 +3817,54 @@ static void ixgbe_watchdog(unsigned long data) /* Do the watchdog outside of interrupt context due to the lovely * delays that some of the newer hardware requires */ if (!test_bit(__IXGBE_DOWN, &adapter->state)) { + u64 eics = 0; + int i; + + for (i = 0; i < adapter->num_msix_vectors - NON_Q_VECTORS; i++) + eics |= (1 << i); + /* Cause software interrupt to ensure rx rings are cleaned */ - if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) { - u32 eics = - (1 << (adapter->num_msix_vectors - NON_Q_VECTORS)) - 1; - IXGBE_WRITE_REG(hw, IXGBE_EICS, eics); - } else { - /* For legacy and MSI interrupts don't set any bits that - * are enabled for EIAM, because this operation would - * set *both* EIMS and EICS for any bit in EIAM */ - IXGBE_WRITE_REG(hw, IXGBE_EICS, - (IXGBE_EICS_TCP_TIMER | IXGBE_EICS_OTHER)); + switch (hw->mac.type) { + case ixgbe_mac_82598EB: + if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) { + IXGBE_WRITE_REG(hw, IXGBE_EICS, (u32)eics); + } else { + /* + * for legacy and MSI interrupts don't set any + * bits that are enabled for EIAM, because this + * operation would set *both* EIMS and EICS for + * any bit in EIAM + */ + IXGBE_WRITE_REG(hw, IXGBE_EICS, + (IXGBE_EICS_TCP_TIMER | IXGBE_EICS_OTHER)); + } + break; + case ixgbe_mac_82599EB: + if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) { + /* + * EICS(0..15) first 0-15 q vectors + * EICS[1] (16..31) q vectors 16-31 + * EICS[2] (0..31) q vectors 32-63 + */ + IXGBE_WRITE_REG(hw, IXGBE_EICS, + (u32)(eics & 0xFFFF)); + IXGBE_WRITE_REG(hw, IXGBE_EICS_EX(1), + (u32)(eics & 0xFFFF0000)); + IXGBE_WRITE_REG(hw, IXGBE_EICS_EX(2), + (u32)(eics >> 32)); + } else { + /* + * for legacy and MSI interrupts don't set any + * bits that are enabled for EIAM, because this + * operation would set *both* EIMS and EICS for + * any bit in EIAM + */ + IXGBE_WRITE_REG(hw, IXGBE_EICS, + (IXGBE_EICS_TCP_TIMER | IXGBE_EICS_OTHER)); + } + break; + default: + break; } /* Reset the timer */ mod_timer(&adapter->watchdog_timer, @@ -3437,6 +3875,55 @@ static void ixgbe_watchdog(unsigned long data) } /** + * ixgbe_multispeed_fiber_task - worker thread to configure multispeed fiber + * @work: pointer to work_struct containing our data + **/ +static void ixgbe_multispeed_fiber_task(struct work_struct *work) +{ + struct ixgbe_adapter *adapter = container_of(work, + struct ixgbe_adapter, + multispeed_fiber_task); + struct ixgbe_hw *hw = &adapter->hw; + u32 autoneg; + + adapter->flags |= IXGBE_FLAG_IN_SFP_LINK_TASK; + if (hw->mac.ops.get_link_capabilities) + hw->mac.ops.get_link_capabilities(hw, &autoneg, + &hw->mac.autoneg); + if (hw->mac.ops.setup_link_speed) + hw->mac.ops.setup_link_speed(hw, autoneg, true, true); + adapter->flags |= IXGBE_FLAG_NEED_LINK_UPDATE; + adapter->flags &= ~IXGBE_FLAG_IN_SFP_LINK_TASK; +} + +/** + * ixgbe_sfp_config_module_task - worker thread to configure a new SFP+ module + * @work: pointer to work_struct containing our data + **/ +static void ixgbe_sfp_config_module_task(struct work_struct *work) +{ + struct ixgbe_adapter *adapter = container_of(work, + struct ixgbe_adapter, + sfp_config_module_task); + struct ixgbe_hw *hw = &adapter->hw; + u32 err; + + adapter->flags |= IXGBE_FLAG_IN_SFP_MOD_TASK; + err = hw->phy.ops.identify_sfp(hw); + if (err == IXGBE_ERR_SFP_NOT_SUPPORTED) { + DPRINTK(PROBE, ERR, "PHY not supported on this NIC %d\n", err); + ixgbe_down(adapter); + return; + } + hw->mac.ops.setup_sfp(hw); + + if (!adapter->flags & IXGBE_FLAG_IN_SFP_LINK_TASK) + /* This will also work for DA Twinax connections */ + schedule_work(&adapter->multispeed_fiber_task); + adapter->flags &= ~IXGBE_FLAG_IN_SFP_MOD_TASK; +} + +/** * ixgbe_watchdog_task - worker thread to bring link up * @work: pointer to work_struct containing our data **/ @@ -3466,10 +3953,20 @@ static void ixgbe_watchdog_task(struct work_struct *work) if (link_up) { if (!netif_carrier_ok(netdev)) { - u32 frctl = IXGBE_READ_REG(hw, IXGBE_FCTRL); - u32 rmcs = IXGBE_READ_REG(hw, IXGBE_RMCS); -#define FLOW_RX (frctl & IXGBE_FCTRL_RFCE) -#define FLOW_TX (rmcs & IXGBE_RMCS_TFCE_802_3X) + bool flow_rx, flow_tx; + + if (hw->mac.type == ixgbe_mac_82599EB) { + u32 mflcn = IXGBE_READ_REG(hw, IXGBE_MFLCN); + u32 fccfg = IXGBE_READ_REG(hw, IXGBE_FCCFG); + flow_rx = (mflcn & IXGBE_MFLCN_RFCE); + flow_tx = (fccfg & IXGBE_FCCFG_TFCE_802_3X); + } else { + u32 frctl = IXGBE_READ_REG(hw, IXGBE_FCTRL); + u32 rmcs = IXGBE_READ_REG(hw, IXGBE_RMCS); + flow_rx = (frctl & IXGBE_FCTRL_RFCE); + flow_tx = (rmcs & IXGBE_RMCS_TFCE_802_3X); + } + printk(KERN_INFO "ixgbe: %s NIC Link is Up %s, " "Flow Control: %s\n", netdev->name, @@ -3477,9 +3974,9 @@ static void ixgbe_watchdog_task(struct work_struct *work) "10 Gbps" : (link_speed == IXGBE_LINK_SPEED_1GB_FULL ? "1 Gbps" : "unknown speed")), - ((FLOW_RX && FLOW_TX) ? "RX/TX" : - (FLOW_RX ? "RX" : - (FLOW_TX ? "TX" : "None")))); + ((flow_rx && flow_tx) ? "RX/TX" : + (flow_rx ? "RX" : + (flow_tx ? "TX" : "None")))); netif_carrier_on(netdev); } else { @@ -3619,13 +4116,13 @@ static bool ixgbe_tx_csum(struct ixgbe_adapter *adapter, if (skb->ip_summed == CHECKSUM_PARTIAL) { switch (skb->protocol) { - case __constant_htons(ETH_P_IP): + case cpu_to_be16(ETH_P_IP): type_tucmd_mlhl |= IXGBE_ADVTXD_TUCMD_IPV4; if (ip_hdr(skb)->protocol == IPPROTO_TCP) type_tucmd_mlhl |= IXGBE_ADVTXD_TUCMD_L4T_TCP; break; - case __constant_htons(ETH_P_IPV6): + case cpu_to_be16(ETH_P_IPV6): /* XXX what about other V6 headers?? */ if (ipv6_hdr(skb)->nexthdr == IPPROTO_TCP) type_tucmd_mlhl |= @@ -3665,32 +4162,39 @@ static int ixgbe_tx_map(struct ixgbe_adapter *adapter, struct sk_buff *skb, unsigned int first) { struct ixgbe_tx_buffer *tx_buffer_info; - unsigned int len = skb->len; + unsigned int len = skb_headlen(skb); unsigned int offset = 0, size, count = 0, i; unsigned int nr_frags = skb_shinfo(skb)->nr_frags; unsigned int f; - - len -= skb->data_len; + 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"); + return 0; + } + + map = skb_shinfo(skb)->dma_maps; + while (len) { tx_buffer_info = &tx_ring->tx_buffer_info[i]; size = min(len, (uint)IXGBE_MAX_DATA_PER_TXD); tx_buffer_info->length = size; - tx_buffer_info->dma = pci_map_single(adapter->pdev, - skb->data + offset, - size, PCI_DMA_TODEVICE); + tx_buffer_info->dma = map[0] + offset; tx_buffer_info->time_stamp = jiffies; tx_buffer_info->next_to_watch = i; len -= size; offset += size; count++; - i++; - if (i == tx_ring->count) - i = 0; + + if (len) { + i++; + if (i == tx_ring->count) + i = 0; + } } for (f = 0; f < nr_frags; f++) { @@ -3698,33 +4202,27 @@ static int ixgbe_tx_map(struct ixgbe_adapter *adapter, frag = &skb_shinfo(skb)->frags[f]; len = frag->size; - offset = frag->page_offset; + offset = 0; while (len) { + i++; + if (i == tx_ring->count) + i = 0; + tx_buffer_info = &tx_ring->tx_buffer_info[i]; size = min(len, (uint)IXGBE_MAX_DATA_PER_TXD); tx_buffer_info->length = size; - tx_buffer_info->dma = pci_map_page(adapter->pdev, - frag->page, - offset, - size, - PCI_DMA_TODEVICE); + tx_buffer_info->dma = map[f + 1] + offset; tx_buffer_info->time_stamp = jiffies; tx_buffer_info->next_to_watch = i; len -= size; offset += size; count++; - i++; - if (i == tx_ring->count) - i = 0; } } - if (i == 0) - i = tx_ring->count - 1; - else - i = i - 1; + tx_ring->tx_buffer_info[i].skb = skb; tx_ring->tx_buffer_info[first].next_to_watch = i; @@ -3823,6 +4321,16 @@ static int ixgbe_maybe_stop_tx(struct net_device *netdev, return __ixgbe_maybe_stop_tx(netdev, tx_ring, size); } +static u16 ixgbe_select_queue(struct net_device *dev, struct sk_buff *skb) +{ + struct ixgbe_adapter *adapter = netdev_priv(dev); + + if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) + return 0; /* All traffic should default to class 0 */ + + return skb_tx_hash(dev, skb); +} + static int ixgbe_xmit_frame(struct sk_buff *skb, struct net_device *netdev) { struct ixgbe_adapter *adapter = netdev_priv(netdev); @@ -3880,13 +4388,19 @@ static int ixgbe_xmit_frame(struct sk_buff *skb, struct net_device *netdev) (skb->ip_summed == CHECKSUM_PARTIAL)) tx_flags |= IXGBE_TX_FLAGS_CSUM; - ixgbe_tx_queue(adapter, tx_ring, tx_flags, - ixgbe_tx_map(adapter, tx_ring, skb, first), - skb->len, hdr_len); + count = ixgbe_tx_map(adapter, tx_ring, skb, first); - netdev->trans_start = jiffies; + if (count) { + ixgbe_tx_queue(adapter, tx_ring, tx_flags, count, skb->len, + hdr_len); + netdev->trans_start = jiffies; + ixgbe_maybe_stop_tx(netdev, tx_ring, DESC_NEEDED); - ixgbe_maybe_stop_tx(netdev, tx_ring, DESC_NEEDED); + } else { + dev_kfree_skb_any(skb); + tx_ring->tx_buffer_info[first].time_stamp = 0; + tx_ring->next_to_use = first; + } return NETDEV_TX_OK; } @@ -3948,30 +4462,11 @@ static void ixgbe_netpoll(struct net_device *netdev) } #endif -/** - * ixgbe_link_config - set up initial link with default speed and duplex - * @hw: pointer to private hardware struct - * - * Returns 0 on success, negative on failure - **/ -static int ixgbe_link_config(struct ixgbe_hw *hw) -{ - u32 autoneg = IXGBE_LINK_SPEED_10GB_FULL; - - /* must always autoneg for both 1G and 10G link */ - hw->mac.autoneg = true; - - if ((hw->mac.type == ixgbe_mac_82598EB) && - (hw->phy.media_type == ixgbe_media_type_copper)) - autoneg = IXGBE_LINK_SPEED_82598_AUTONEG; - - return hw->mac.ops.setup_link_speed(hw, autoneg, true, true); -} - static const struct net_device_ops ixgbe_netdev_ops = { .ndo_open = ixgbe_open, .ndo_stop = ixgbe_close, .ndo_start_xmit = ixgbe_xmit_frame, + .ndo_select_queue = ixgbe_select_queue, .ndo_get_stats = ixgbe_get_stats, .ndo_set_rx_mode = ixgbe_set_rx_mode, .ndo_set_multicast_list = ixgbe_set_rx_mode, @@ -4007,7 +4502,7 @@ static int __devinit ixgbe_probe(struct pci_dev *pdev, const struct ixgbe_info *ii = ixgbe_info_tbl[ent->driver_data]; static int cards_found; int i, err, pci_using_dac; - u16 link_status, link_speed, link_width; + u16 pm_value = 0; u32 part_num, eec; err = pci_enable_device(pdev); @@ -4106,6 +4601,13 @@ static int __devinit ixgbe_probe(struct pci_dev *pdev, INIT_WORK(&adapter->sfp_task, ixgbe_sfp_task); + /* multispeed fiber has its own tasklet, called from GPI SDP1 context */ + INIT_WORK(&adapter->multispeed_fiber_task, ixgbe_multispeed_fiber_task); + + /* a new SFP+ module arrival, called from GPI SDP2 context */ + INIT_WORK(&adapter->sfp_config_module_task, + ixgbe_sfp_config_module_task); + err = ii->get_invariants(hw); if (err == IXGBE_ERR_SFP_NOT_PRESENT) { /* start a kernel thread to watch for a module to arrive */ @@ -4142,7 +4644,7 @@ static int __devinit ixgbe_probe(struct pci_dev *pdev, netdev->features |= NETIF_F_IPV6_CSUM; netdev->features |= NETIF_F_TSO; netdev->features |= NETIF_F_TSO6; - netdev->features |= NETIF_F_LRO; + netdev->features |= NETIF_F_GRO; netdev->vlan_features |= NETIF_F_TSO; netdev->vlan_features |= NETIF_F_TSO6; @@ -4186,26 +4688,41 @@ static int __devinit ixgbe_probe(struct pci_dev *pdev, if (err) goto err_sw_init; + switch (pdev->device) { + case IXGBE_DEV_ID_82599_KX4: +#define IXGBE_PCIE_PMCSR 0x44 + adapter->wol = IXGBE_WUFC_MAG; + pci_read_config_word(pdev, IXGBE_PCIE_PMCSR, &pm_value); + pci_write_config_word(pdev, IXGBE_PCIE_PMCSR, + (pm_value | (1 << 8))); + break; + default: + adapter->wol = 0; + break; + } + device_init_wakeup(&adapter->pdev->dev, true); + device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol); + /* print bus type/speed/width info */ - pci_read_config_word(pdev, IXGBE_PCI_LINK_STATUS, &link_status); - link_speed = link_status & IXGBE_PCI_LINK_SPEED; - link_width = link_status & IXGBE_PCI_LINK_WIDTH; dev_info(&pdev->dev, "(PCI Express:%s:%s) %pM\n", - ((link_speed == IXGBE_PCI_LINK_SPEED_5000) ? "5.0Gb/s" : - (link_speed == IXGBE_PCI_LINK_SPEED_2500) ? "2.5Gb/s" : - "Unknown"), - ((link_width == IXGBE_PCI_LINK_WIDTH_8) ? "Width x8" : - (link_width == IXGBE_PCI_LINK_WIDTH_4) ? "Width x4" : - (link_width == IXGBE_PCI_LINK_WIDTH_2) ? "Width x2" : - (link_width == IXGBE_PCI_LINK_WIDTH_1) ? "Width x1" : + ((hw->bus.speed == ixgbe_bus_speed_5000) ? "5.0Gb/s": + (hw->bus.speed == ixgbe_bus_speed_2500) ? "2.5Gb/s":"Unknown"), + ((hw->bus.width == ixgbe_bus_width_pcie_x8) ? "Width x8" : + (hw->bus.width == ixgbe_bus_width_pcie_x4) ? "Width x4" : + (hw->bus.width == ixgbe_bus_width_pcie_x1) ? "Width x1" : "Unknown"), netdev->dev_addr); ixgbe_read_pba_num_generic(hw, &part_num); - dev_info(&pdev->dev, "MAC: %d, PHY: %d, PBA No: %06x-%03x\n", - hw->mac.type, hw->phy.type, - (part_num >> 8), (part_num & 0xff)); + if (ixgbe_is_sfp(hw) && hw->phy.sfp_type != ixgbe_sfp_type_not_present) + dev_info(&pdev->dev, "MAC: %d, PHY: %d, SFP+: %d, PBA No: %06x-%03x\n", + hw->mac.type, hw->phy.type, hw->phy.sfp_type, + (part_num >> 8), (part_num & 0xff)); + else + dev_info(&pdev->dev, "MAC: %d, PHY: %d, PBA No: %06x-%03x\n", + hw->mac.type, hw->phy.type, + (part_num >> 8), (part_num & 0xff)); - if (link_width <= IXGBE_PCI_LINK_WIDTH_4) { + if (hw->bus.width <= ixgbe_bus_width_pcie_x4) { dev_warn(&pdev->dev, "PCI-Express bandwidth available for " "this card is not sufficient for optimal " "performance.\n"); @@ -4213,16 +4730,12 @@ static int __devinit ixgbe_probe(struct pci_dev *pdev, "PCI-Express slot is required.\n"); } + /* save off EEPROM version number */ + hw->eeprom.ops.read(hw, 0x29, &adapter->eeprom_version); + /* reset the hardware with the new settings */ hw->mac.ops.start_hw(hw); - /* link_config depends on start_hw being called at least once */ - err = ixgbe_link_config(hw); - if (err) { - dev_err(&pdev->dev, "setup_link_speed FAILED %d\n", err); - goto err_register; - } - netif_carrier_off(netdev); strcpy(netdev->name, "eth%d"); @@ -4253,6 +4766,8 @@ err_eeprom: clear_bit(__IXGBE_SFP_MODULE_NOT_FOUND, &adapter->state); del_timer_sync(&adapter->sfp_timer); cancel_work_sync(&adapter->sfp_task); + cancel_work_sync(&adapter->multispeed_fiber_task); + cancel_work_sync(&adapter->sfp_config_module_task); iounmap(hw->hw_addr); err_ioremap: free_netdev(netdev); @@ -4289,6 +4804,8 @@ static void __devexit ixgbe_remove(struct pci_dev *pdev) del_timer_sync(&adapter->sfp_timer); cancel_work_sync(&adapter->watchdog_task); cancel_work_sync(&adapter->sfp_task); + cancel_work_sync(&adapter->multispeed_fiber_task); + cancel_work_sync(&adapter->sfp_config_module_task); flush_scheduled_work(); #ifdef CONFIG_IXGBE_DCA @@ -4372,7 +4889,7 @@ static pci_ers_result_t ixgbe_io_slot_reset(struct pci_dev *pdev) pci_enable_wake(pdev, PCI_D3cold, 0); ixgbe_reset(adapter); - + IXGBE_WRITE_REG(&adapter->hw, IXGBE_WUS, ~0); result = PCI_ERS_RESULT_RECOVERED; } @@ -4476,8 +4993,20 @@ static int ixgbe_notify_dca(struct notifier_block *nb, unsigned long event, return ret_val ? NOTIFY_BAD : NOTIFY_DONE; } + #endif /* CONFIG_IXGBE_DCA */ +#ifdef DEBUG +/** + * ixgbe_get_hw_dev_name - return device name string + * used by hardware layer to print debugging information + **/ +char *ixgbe_get_hw_dev_name(struct ixgbe_hw *hw) +{ + struct ixgbe_adapter *adapter = hw->back; + return adapter->netdev->name; +} +#endif module_exit(ixgbe_exit_module); /* ixgbe_main.c */ |