| /* |
| * Copyright (C) 2005 - 2011 Emulex |
| * All rights reserved. |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License version 2 |
| * as published by the Free Software Foundation. The full GNU General |
| * Public License is included in this distribution in the file called COPYING. |
| * |
| * Contact Information: |
| * linux-drivers@emulex.com |
| * |
| * Emulex |
| * 3333 Susan Street |
| * Costa Mesa, CA 92626 |
| */ |
| |
| #include "be.h" |
| #include "be_cmds.h" |
| #include <asm/div64.h> |
| |
| MODULE_VERSION(DRV_VER); |
| MODULE_DEVICE_TABLE(pci, be_dev_ids); |
| MODULE_DESCRIPTION(DRV_DESC " " DRV_VER); |
| MODULE_AUTHOR("ServerEngines Corporation"); |
| MODULE_LICENSE("GPL"); |
| |
| static ushort rx_frag_size = 2048; |
| static unsigned int num_vfs; |
| module_param(rx_frag_size, ushort, S_IRUGO); |
| module_param(num_vfs, uint, S_IRUGO); |
| MODULE_PARM_DESC(rx_frag_size, "Size of a fragment that holds rcvd data."); |
| MODULE_PARM_DESC(num_vfs, "Number of PCI VFs to initialize"); |
| |
| static bool multi_rxq = true; |
| module_param(multi_rxq, bool, S_IRUGO | S_IWUSR); |
| MODULE_PARM_DESC(multi_rxq, "Multi Rx Queue support. Enabled by default"); |
| |
| static DEFINE_PCI_DEVICE_TABLE(be_dev_ids) = { |
| { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID1) }, |
| { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID2) }, |
| { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID1) }, |
| { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID2) }, |
| { PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID3)}, |
| { 0 } |
| }; |
| MODULE_DEVICE_TABLE(pci, be_dev_ids); |
| /* UE Status Low CSR */ |
| static char *ue_status_low_desc[] = { |
| "CEV", |
| "CTX", |
| "DBUF", |
| "ERX", |
| "Host", |
| "MPU", |
| "NDMA", |
| "PTC ", |
| "RDMA ", |
| "RXF ", |
| "RXIPS ", |
| "RXULP0 ", |
| "RXULP1 ", |
| "RXULP2 ", |
| "TIM ", |
| "TPOST ", |
| "TPRE ", |
| "TXIPS ", |
| "TXULP0 ", |
| "TXULP1 ", |
| "UC ", |
| "WDMA ", |
| "TXULP2 ", |
| "HOST1 ", |
| "P0_OB_LINK ", |
| "P1_OB_LINK ", |
| "HOST_GPIO ", |
| "MBOX ", |
| "AXGMAC0", |
| "AXGMAC1", |
| "JTAG", |
| "MPU_INTPEND" |
| }; |
| /* UE Status High CSR */ |
| static char *ue_status_hi_desc[] = { |
| "LPCMEMHOST", |
| "MGMT_MAC", |
| "PCS0ONLINE", |
| "MPU_IRAM", |
| "PCS1ONLINE", |
| "PCTL0", |
| "PCTL1", |
| "PMEM", |
| "RR", |
| "TXPB", |
| "RXPP", |
| "XAUI", |
| "TXP", |
| "ARM", |
| "IPC", |
| "HOST2", |
| "HOST3", |
| "HOST4", |
| "HOST5", |
| "HOST6", |
| "HOST7", |
| "HOST8", |
| "HOST9", |
| "NETC" |
| "Unknown", |
| "Unknown", |
| "Unknown", |
| "Unknown", |
| "Unknown", |
| "Unknown", |
| "Unknown", |
| "Unknown" |
| }; |
| |
| static void be_queue_free(struct be_adapter *adapter, struct be_queue_info *q) |
| { |
| struct be_dma_mem *mem = &q->dma_mem; |
| if (mem->va) |
| dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va, |
| mem->dma); |
| } |
| |
| static int be_queue_alloc(struct be_adapter *adapter, struct be_queue_info *q, |
| u16 len, u16 entry_size) |
| { |
| struct be_dma_mem *mem = &q->dma_mem; |
| |
| memset(q, 0, sizeof(*q)); |
| q->len = len; |
| q->entry_size = entry_size; |
| mem->size = len * entry_size; |
| mem->va = dma_alloc_coherent(&adapter->pdev->dev, mem->size, &mem->dma, |
| GFP_KERNEL); |
| if (!mem->va) |
| return -1; |
| memset(mem->va, 0, mem->size); |
| return 0; |
| } |
| |
| static void be_intr_set(struct be_adapter *adapter, bool enable) |
| { |
| u8 __iomem *addr = adapter->pcicfg + PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET; |
| u32 reg = ioread32(addr); |
| u32 enabled = reg & MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK; |
| |
| if (adapter->eeh_err) |
| return; |
| |
| if (!enabled && enable) |
| reg |= MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK; |
| else if (enabled && !enable) |
| reg &= ~MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK; |
| else |
| return; |
| |
| iowrite32(reg, addr); |
| } |
| |
| static void be_rxq_notify(struct be_adapter *adapter, u16 qid, u16 posted) |
| { |
| u32 val = 0; |
| val |= qid & DB_RQ_RING_ID_MASK; |
| val |= posted << DB_RQ_NUM_POSTED_SHIFT; |
| |
| wmb(); |
| iowrite32(val, adapter->db + DB_RQ_OFFSET); |
| } |
| |
| static void be_txq_notify(struct be_adapter *adapter, u16 qid, u16 posted) |
| { |
| u32 val = 0; |
| val |= qid & DB_TXULP_RING_ID_MASK; |
| val |= (posted & DB_TXULP_NUM_POSTED_MASK) << DB_TXULP_NUM_POSTED_SHIFT; |
| |
| wmb(); |
| iowrite32(val, adapter->db + DB_TXULP1_OFFSET); |
| } |
| |
| static void be_eq_notify(struct be_adapter *adapter, u16 qid, |
| bool arm, bool clear_int, u16 num_popped) |
| { |
| u32 val = 0; |
| val |= qid & DB_EQ_RING_ID_MASK; |
| val |= ((qid & DB_EQ_RING_ID_EXT_MASK) << |
| DB_EQ_RING_ID_EXT_MASK_SHIFT); |
| |
| if (adapter->eeh_err) |
| return; |
| |
| if (arm) |
| val |= 1 << DB_EQ_REARM_SHIFT; |
| if (clear_int) |
| val |= 1 << DB_EQ_CLR_SHIFT; |
| val |= 1 << DB_EQ_EVNT_SHIFT; |
| val |= num_popped << DB_EQ_NUM_POPPED_SHIFT; |
| iowrite32(val, adapter->db + DB_EQ_OFFSET); |
| } |
| |
| void be_cq_notify(struct be_adapter *adapter, u16 qid, bool arm, u16 num_popped) |
| { |
| u32 val = 0; |
| val |= qid & DB_CQ_RING_ID_MASK; |
| val |= ((qid & DB_CQ_RING_ID_EXT_MASK) << |
| DB_CQ_RING_ID_EXT_MASK_SHIFT); |
| |
| if (adapter->eeh_err) |
| return; |
| |
| if (arm) |
| val |= 1 << DB_CQ_REARM_SHIFT; |
| val |= num_popped << DB_CQ_NUM_POPPED_SHIFT; |
| iowrite32(val, adapter->db + DB_CQ_OFFSET); |
| } |
| |
| static int be_mac_addr_set(struct net_device *netdev, void *p) |
| { |
| struct be_adapter *adapter = netdev_priv(netdev); |
| struct sockaddr *addr = p; |
| int status = 0; |
| |
| if (!is_valid_ether_addr(addr->sa_data)) |
| return -EADDRNOTAVAIL; |
| |
| /* MAC addr configuration will be done in hardware for VFs |
| * by their corresponding PFs. Just copy to netdev addr here |
| */ |
| if (!be_physfn(adapter)) |
| goto netdev_addr; |
| |
| status = be_cmd_pmac_del(adapter, adapter->if_handle, |
| adapter->pmac_id, 0); |
| if (status) |
| return status; |
| |
| status = be_cmd_pmac_add(adapter, (u8 *)addr->sa_data, |
| adapter->if_handle, &adapter->pmac_id, 0); |
| netdev_addr: |
| if (!status) |
| memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); |
| |
| return status; |
| } |
| |
| void netdev_stats_update(struct be_adapter *adapter) |
| { |
| struct be_hw_stats *hw_stats = hw_stats_from_cmd(adapter->stats_cmd.va); |
| struct be_rxf_stats *rxf_stats = &hw_stats->rxf; |
| struct be_port_rxf_stats *port_stats = |
| &rxf_stats->port[adapter->port_num]; |
| struct net_device_stats *dev_stats = &adapter->netdev->stats; |
| struct be_erx_stats *erx_stats = &hw_stats->erx; |
| struct be_rx_obj *rxo; |
| int i; |
| |
| memset(dev_stats, 0, sizeof(*dev_stats)); |
| for_all_rx_queues(adapter, rxo, i) { |
| dev_stats->rx_packets += rx_stats(rxo)->rx_pkts; |
| dev_stats->rx_bytes += rx_stats(rxo)->rx_bytes; |
| dev_stats->multicast += rx_stats(rxo)->rx_mcast_pkts; |
| /* no space in linux buffers: best possible approximation */ |
| dev_stats->rx_dropped += |
| erx_stats->rx_drops_no_fragments[rxo->q.id]; |
| } |
| |
| dev_stats->tx_packets = tx_stats(adapter)->be_tx_pkts; |
| dev_stats->tx_bytes = tx_stats(adapter)->be_tx_bytes; |
| |
| /* bad pkts received */ |
| dev_stats->rx_errors = port_stats->rx_crc_errors + |
| port_stats->rx_alignment_symbol_errors + |
| port_stats->rx_in_range_errors + |
| port_stats->rx_out_range_errors + |
| port_stats->rx_frame_too_long + |
| port_stats->rx_dropped_too_small + |
| port_stats->rx_dropped_too_short + |
| port_stats->rx_dropped_header_too_small + |
| port_stats->rx_dropped_tcp_length + |
| port_stats->rx_dropped_runt + |
| port_stats->rx_tcp_checksum_errs + |
| port_stats->rx_ip_checksum_errs + |
| port_stats->rx_udp_checksum_errs; |
| |
| /* detailed rx errors */ |
| dev_stats->rx_length_errors = port_stats->rx_in_range_errors + |
| port_stats->rx_out_range_errors + |
| port_stats->rx_frame_too_long; |
| |
| dev_stats->rx_crc_errors = port_stats->rx_crc_errors; |
| |
| /* frame alignment errors */ |
| dev_stats->rx_frame_errors = port_stats->rx_alignment_symbol_errors; |
| |
| /* receiver fifo overrun */ |
| /* drops_no_pbuf is no per i/f, it's per BE card */ |
| dev_stats->rx_fifo_errors = port_stats->rx_fifo_overflow + |
| port_stats->rx_input_fifo_overflow + |
| rxf_stats->rx_drops_no_pbuf; |
| } |
| |
| void be_link_status_update(struct be_adapter *adapter, bool link_up) |
| { |
| struct net_device *netdev = adapter->netdev; |
| |
| /* If link came up or went down */ |
| if (adapter->link_up != link_up) { |
| adapter->link_speed = -1; |
| if (link_up) { |
| netif_carrier_on(netdev); |
| printk(KERN_INFO "%s: Link up\n", netdev->name); |
| } else { |
| netif_carrier_off(netdev); |
| printk(KERN_INFO "%s: Link down\n", netdev->name); |
| } |
| adapter->link_up = link_up; |
| } |
| } |
| |
| /* Update the EQ delay n BE based on the RX frags consumed / sec */ |
| static void be_rx_eqd_update(struct be_adapter *adapter, struct be_rx_obj *rxo) |
| { |
| struct be_eq_obj *rx_eq = &rxo->rx_eq; |
| struct be_rx_stats *stats = &rxo->stats; |
| ulong now = jiffies; |
| u32 eqd; |
| |
| if (!rx_eq->enable_aic) |
| return; |
| |
| /* Wrapped around */ |
| if (time_before(now, stats->rx_fps_jiffies)) { |
| stats->rx_fps_jiffies = now; |
| return; |
| } |
| |
| /* Update once a second */ |
| if ((now - stats->rx_fps_jiffies) < HZ) |
| return; |
| |
| stats->rx_fps = (stats->rx_frags - stats->prev_rx_frags) / |
| ((now - stats->rx_fps_jiffies) / HZ); |
| |
| stats->rx_fps_jiffies = now; |
| stats->prev_rx_frags = stats->rx_frags; |
| eqd = stats->rx_fps / 110000; |
| eqd = eqd << 3; |
| if (eqd > rx_eq->max_eqd) |
| eqd = rx_eq->max_eqd; |
| if (eqd < rx_eq->min_eqd) |
| eqd = rx_eq->min_eqd; |
| if (eqd < 10) |
| eqd = 0; |
| if (eqd != rx_eq->cur_eqd) |
| be_cmd_modify_eqd(adapter, rx_eq->q.id, eqd); |
| |
| rx_eq->cur_eqd = eqd; |
| } |
| |
| static u32 be_calc_rate(u64 bytes, unsigned long ticks) |
| { |
| u64 rate = bytes; |
| |
| do_div(rate, ticks / HZ); |
| rate <<= 3; /* bytes/sec -> bits/sec */ |
| do_div(rate, 1000000ul); /* MB/Sec */ |
| |
| return rate; |
| } |
| |
| static void be_tx_rate_update(struct be_adapter *adapter) |
| { |
| struct be_tx_stats *stats = tx_stats(adapter); |
| ulong now = jiffies; |
| |
| /* Wrapped around? */ |
| if (time_before(now, stats->be_tx_jiffies)) { |
| stats->be_tx_jiffies = now; |
| return; |
| } |
| |
| /* Update tx rate once in two seconds */ |
| if ((now - stats->be_tx_jiffies) > 2 * HZ) { |
| stats->be_tx_rate = be_calc_rate(stats->be_tx_bytes |
| - stats->be_tx_bytes_prev, |
| now - stats->be_tx_jiffies); |
| stats->be_tx_jiffies = now; |
| stats->be_tx_bytes_prev = stats->be_tx_bytes; |
| } |
| } |
| |
| static void be_tx_stats_update(struct be_adapter *adapter, |
| u32 wrb_cnt, u32 copied, u32 gso_segs, bool stopped) |
| { |
| struct be_tx_stats *stats = tx_stats(adapter); |
| stats->be_tx_reqs++; |
| stats->be_tx_wrbs += wrb_cnt; |
| stats->be_tx_bytes += copied; |
| stats->be_tx_pkts += (gso_segs ? gso_segs : 1); |
| if (stopped) |
| stats->be_tx_stops++; |
| } |
| |
| /* Determine number of WRB entries needed to xmit data in an skb */ |
| static u32 wrb_cnt_for_skb(struct be_adapter *adapter, struct sk_buff *skb, |
| bool *dummy) |
| { |
| int cnt = (skb->len > skb->data_len); |
| |
| cnt += skb_shinfo(skb)->nr_frags; |
| |
| /* to account for hdr wrb */ |
| cnt++; |
| if (lancer_chip(adapter) || !(cnt & 1)) { |
| *dummy = false; |
| } else { |
| /* add a dummy to make it an even num */ |
| cnt++; |
| *dummy = true; |
| } |
| BUG_ON(cnt > BE_MAX_TX_FRAG_COUNT); |
| return cnt; |
| } |
| |
| static inline void wrb_fill(struct be_eth_wrb *wrb, u64 addr, int len) |
| { |
| wrb->frag_pa_hi = upper_32_bits(addr); |
| wrb->frag_pa_lo = addr & 0xFFFFFFFF; |
| wrb->frag_len = len & ETH_WRB_FRAG_LEN_MASK; |
| } |
| |
| static void wrb_fill_hdr(struct be_adapter *adapter, struct be_eth_hdr_wrb *hdr, |
| struct sk_buff *skb, u32 wrb_cnt, u32 len) |
| { |
| u8 vlan_prio = 0; |
| u16 vlan_tag = 0; |
| |
| memset(hdr, 0, sizeof(*hdr)); |
| |
| AMAP_SET_BITS(struct amap_eth_hdr_wrb, crc, hdr, 1); |
| |
| if (skb_is_gso(skb)) { |
| AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso, hdr, 1); |
| AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso_mss, |
| hdr, skb_shinfo(skb)->gso_size); |
| if (skb_is_gso_v6(skb) && !lancer_chip(adapter)) |
| AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso6, hdr, 1); |
| if (lancer_chip(adapter) && adapter->sli_family == |
| LANCER_A0_SLI_FAMILY) { |
| AMAP_SET_BITS(struct amap_eth_hdr_wrb, ipcs, hdr, 1); |
| if (is_tcp_pkt(skb)) |
| AMAP_SET_BITS(struct amap_eth_hdr_wrb, |
| tcpcs, hdr, 1); |
| else if (is_udp_pkt(skb)) |
| AMAP_SET_BITS(struct amap_eth_hdr_wrb, |
| udpcs, hdr, 1); |
| } |
| } else if (skb->ip_summed == CHECKSUM_PARTIAL) { |
| if (is_tcp_pkt(skb)) |
| AMAP_SET_BITS(struct amap_eth_hdr_wrb, tcpcs, hdr, 1); |
| else if (is_udp_pkt(skb)) |
| AMAP_SET_BITS(struct amap_eth_hdr_wrb, udpcs, hdr, 1); |
| } |
| |
| if (adapter->vlan_grp && vlan_tx_tag_present(skb)) { |
| AMAP_SET_BITS(struct amap_eth_hdr_wrb, vlan, hdr, 1); |
| vlan_tag = vlan_tx_tag_get(skb); |
| vlan_prio = (vlan_tag & VLAN_PRIO_MASK) >> VLAN_PRIO_SHIFT; |
| /* If vlan priority provided by OS is NOT in available bmap */ |
| if (!(adapter->vlan_prio_bmap & (1 << vlan_prio))) |
| vlan_tag = (vlan_tag & ~VLAN_PRIO_MASK) | |
| adapter->recommended_prio; |
| AMAP_SET_BITS(struct amap_eth_hdr_wrb, vlan_tag, hdr, vlan_tag); |
| } |
| |
| AMAP_SET_BITS(struct amap_eth_hdr_wrb, event, hdr, 1); |
| AMAP_SET_BITS(struct amap_eth_hdr_wrb, complete, hdr, 1); |
| AMAP_SET_BITS(struct amap_eth_hdr_wrb, num_wrb, hdr, wrb_cnt); |
| AMAP_SET_BITS(struct amap_eth_hdr_wrb, len, hdr, len); |
| } |
| |
| static void unmap_tx_frag(struct device *dev, struct be_eth_wrb *wrb, |
| bool unmap_single) |
| { |
| dma_addr_t dma; |
| |
| be_dws_le_to_cpu(wrb, sizeof(*wrb)); |
| |
| dma = (u64)wrb->frag_pa_hi << 32 | (u64)wrb->frag_pa_lo; |
| if (wrb->frag_len) { |
| if (unmap_single) |
| dma_unmap_single(dev, dma, wrb->frag_len, |
| DMA_TO_DEVICE); |
| else |
| dma_unmap_page(dev, dma, wrb->frag_len, DMA_TO_DEVICE); |
| } |
| } |
| |
| static int make_tx_wrbs(struct be_adapter *adapter, |
| struct sk_buff *skb, u32 wrb_cnt, bool dummy_wrb) |
| { |
| dma_addr_t busaddr; |
| int i, copied = 0; |
| struct device *dev = &adapter->pdev->dev; |
| struct sk_buff *first_skb = skb; |
| struct be_queue_info *txq = &adapter->tx_obj.q; |
| struct be_eth_wrb *wrb; |
| struct be_eth_hdr_wrb *hdr; |
| bool map_single = false; |
| u16 map_head; |
| |
| hdr = queue_head_node(txq); |
| queue_head_inc(txq); |
| map_head = txq->head; |
| |
| if (skb->len > skb->data_len) { |
| int len = skb_headlen(skb); |
| busaddr = dma_map_single(dev, skb->data, len, DMA_TO_DEVICE); |
| if (dma_mapping_error(dev, busaddr)) |
| goto dma_err; |
| map_single = true; |
| wrb = queue_head_node(txq); |
| wrb_fill(wrb, busaddr, len); |
| be_dws_cpu_to_le(wrb, sizeof(*wrb)); |
| queue_head_inc(txq); |
| copied += len; |
| } |
| |
| for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { |
| struct skb_frag_struct *frag = |
| &skb_shinfo(skb)->frags[i]; |
| busaddr = dma_map_page(dev, frag->page, frag->page_offset, |
| frag->size, DMA_TO_DEVICE); |
| if (dma_mapping_error(dev, busaddr)) |
| goto dma_err; |
| wrb = queue_head_node(txq); |
| wrb_fill(wrb, busaddr, frag->size); |
| be_dws_cpu_to_le(wrb, sizeof(*wrb)); |
| queue_head_inc(txq); |
| copied += frag->size; |
| } |
| |
| if (dummy_wrb) { |
| wrb = queue_head_node(txq); |
| wrb_fill(wrb, 0, 0); |
| be_dws_cpu_to_le(wrb, sizeof(*wrb)); |
| queue_head_inc(txq); |
| } |
| |
| wrb_fill_hdr(adapter, hdr, first_skb, wrb_cnt, copied); |
| be_dws_cpu_to_le(hdr, sizeof(*hdr)); |
| |
| return copied; |
| dma_err: |
| txq->head = map_head; |
| while (copied) { |
| wrb = queue_head_node(txq); |
| unmap_tx_frag(dev, wrb, map_single); |
| map_single = false; |
| copied -= wrb->frag_len; |
| queue_head_inc(txq); |
| } |
| return 0; |
| } |
| |
| static netdev_tx_t be_xmit(struct sk_buff *skb, |
| struct net_device *netdev) |
| { |
| struct be_adapter *adapter = netdev_priv(netdev); |
| struct be_tx_obj *tx_obj = &adapter->tx_obj; |
| struct be_queue_info *txq = &tx_obj->q; |
| u32 wrb_cnt = 0, copied = 0; |
| u32 start = txq->head; |
| bool dummy_wrb, stopped = false; |
| |
| wrb_cnt = wrb_cnt_for_skb(adapter, skb, &dummy_wrb); |
| |
| copied = make_tx_wrbs(adapter, skb, wrb_cnt, dummy_wrb); |
| if (copied) { |
| /* record the sent skb in the sent_skb table */ |
| BUG_ON(tx_obj->sent_skb_list[start]); |
| tx_obj->sent_skb_list[start] = skb; |
| |
| /* Ensure txq has space for the next skb; Else stop the queue |
| * *BEFORE* ringing the tx doorbell, so that we serialze the |
| * tx compls of the current transmit which'll wake up the queue |
| */ |
| atomic_add(wrb_cnt, &txq->used); |
| if ((BE_MAX_TX_FRAG_COUNT + atomic_read(&txq->used)) >= |
| txq->len) { |
| netif_stop_queue(netdev); |
| stopped = true; |
| } |
| |
| be_txq_notify(adapter, txq->id, wrb_cnt); |
| |
| be_tx_stats_update(adapter, wrb_cnt, copied, |
| skb_shinfo(skb)->gso_segs, stopped); |
| } else { |
| txq->head = start; |
| dev_kfree_skb_any(skb); |
| } |
| return NETDEV_TX_OK; |
| } |
| |
| static int be_change_mtu(struct net_device *netdev, int new_mtu) |
| { |
| struct be_adapter *adapter = netdev_priv(netdev); |
| if (new_mtu < BE_MIN_MTU || |
| new_mtu > (BE_MAX_JUMBO_FRAME_SIZE - |
| (ETH_HLEN + ETH_FCS_LEN))) { |
| dev_info(&adapter->pdev->dev, |
| "MTU must be between %d and %d bytes\n", |
| BE_MIN_MTU, |
| (BE_MAX_JUMBO_FRAME_SIZE - (ETH_HLEN + ETH_FCS_LEN))); |
| return -EINVAL; |
| } |
| dev_info(&adapter->pdev->dev, "MTU changed from %d to %d bytes\n", |
| netdev->mtu, new_mtu); |
| netdev->mtu = new_mtu; |
| return 0; |
| } |
| |
| /* |
| * A max of 64 (BE_NUM_VLANS_SUPPORTED) vlans can be configured in BE. |
| * If the user configures more, place BE in vlan promiscuous mode. |
| */ |
| static int be_vid_config(struct be_adapter *adapter, bool vf, u32 vf_num) |
| { |
| u16 vtag[BE_NUM_VLANS_SUPPORTED]; |
| u16 ntags = 0, i; |
| int status = 0; |
| u32 if_handle; |
| |
| if (vf) { |
| if_handle = adapter->vf_cfg[vf_num].vf_if_handle; |
| vtag[0] = cpu_to_le16(adapter->vf_cfg[vf_num].vf_vlan_tag); |
| status = be_cmd_vlan_config(adapter, if_handle, vtag, 1, 1, 0); |
| } |
| |
| if (adapter->vlans_added <= adapter->max_vlans) { |
| /* Construct VLAN Table to give to HW */ |
| for (i = 0; i < VLAN_N_VID; i++) { |
| if (adapter->vlan_tag[i]) { |
| vtag[ntags] = cpu_to_le16(i); |
| ntags++; |
| } |
| } |
| status = be_cmd_vlan_config(adapter, adapter->if_handle, |
| vtag, ntags, 1, 0); |
| } else { |
| status = be_cmd_vlan_config(adapter, adapter->if_handle, |
| NULL, 0, 1, 1); |
| } |
| |
| return status; |
| } |
| |
| static void be_vlan_register(struct net_device *netdev, struct vlan_group *grp) |
| { |
| struct be_adapter *adapter = netdev_priv(netdev); |
| |
| adapter->vlan_grp = grp; |
| } |
| |
| static void be_vlan_add_vid(struct net_device *netdev, u16 vid) |
| { |
| struct be_adapter *adapter = netdev_priv(netdev); |
| |
| adapter->vlans_added++; |
| if (!be_physfn(adapter)) |
| return; |
| |
| adapter->vlan_tag[vid] = 1; |
| if (adapter->vlans_added <= (adapter->max_vlans + 1)) |
| be_vid_config(adapter, false, 0); |
| } |
| |
| static void be_vlan_rem_vid(struct net_device *netdev, u16 vid) |
| { |
| struct be_adapter *adapter = netdev_priv(netdev); |
| |
| adapter->vlans_added--; |
| vlan_group_set_device(adapter->vlan_grp, vid, NULL); |
| |
| if (!be_physfn(adapter)) |
| return; |
| |
| adapter->vlan_tag[vid] = 0; |
| if (adapter->vlans_added <= adapter->max_vlans) |
| be_vid_config(adapter, false, 0); |
| } |
| |
| static void be_set_multicast_list(struct net_device *netdev) |
| { |
| struct be_adapter *adapter = netdev_priv(netdev); |
| |
| if (netdev->flags & IFF_PROMISC) { |
| be_cmd_promiscuous_config(adapter, adapter->port_num, 1); |
| adapter->promiscuous = true; |
| goto done; |
| } |
| |
| /* BE was previously in promiscous mode; disable it */ |
| if (adapter->promiscuous) { |
| adapter->promiscuous = false; |
| be_cmd_promiscuous_config(adapter, adapter->port_num, 0); |
| } |
| |
| /* Enable multicast promisc if num configured exceeds what we support */ |
| if (netdev->flags & IFF_ALLMULTI || |
| netdev_mc_count(netdev) > BE_MAX_MC) { |
| be_cmd_multicast_set(adapter, adapter->if_handle, NULL, |
| &adapter->mc_cmd_mem); |
| goto done; |
| } |
| |
| be_cmd_multicast_set(adapter, adapter->if_handle, netdev, |
| &adapter->mc_cmd_mem); |
| done: |
| return; |
| } |
| |
| static int be_set_vf_mac(struct net_device *netdev, int vf, u8 *mac) |
| { |
| struct be_adapter *adapter = netdev_priv(netdev); |
| int status; |
| |
| if (!adapter->sriov_enabled) |
| return -EPERM; |
| |
| if (!is_valid_ether_addr(mac) || (vf >= num_vfs)) |
| return -EINVAL; |
| |
| if (adapter->vf_cfg[vf].vf_pmac_id != BE_INVALID_PMAC_ID) |
| status = be_cmd_pmac_del(adapter, |
| adapter->vf_cfg[vf].vf_if_handle, |
| adapter->vf_cfg[vf].vf_pmac_id, vf + 1); |
| |
| status = be_cmd_pmac_add(adapter, mac, |
| adapter->vf_cfg[vf].vf_if_handle, |
| &adapter->vf_cfg[vf].vf_pmac_id, vf + 1); |
| |
| if (status) |
| dev_err(&adapter->pdev->dev, "MAC %pM set on VF %d Failed\n", |
| mac, vf); |
| else |
| memcpy(adapter->vf_cfg[vf].vf_mac_addr, mac, ETH_ALEN); |
| |
| return status; |
| } |
| |
| static int be_get_vf_config(struct net_device *netdev, int vf, |
| struct ifla_vf_info *vi) |
| { |
| struct be_adapter *adapter = netdev_priv(netdev); |
| |
| if (!adapter->sriov_enabled) |
| return -EPERM; |
| |
| if (vf >= num_vfs) |
| return -EINVAL; |
| |
| vi->vf = vf; |
| vi->tx_rate = adapter->vf_cfg[vf].vf_tx_rate; |
| vi->vlan = adapter->vf_cfg[vf].vf_vlan_tag; |
| vi->qos = 0; |
| memcpy(&vi->mac, adapter->vf_cfg[vf].vf_mac_addr, ETH_ALEN); |
| |
| return 0; |
| } |
| |
| static int be_set_vf_vlan(struct net_device *netdev, |
| int vf, u16 vlan, u8 qos) |
| { |
| struct be_adapter *adapter = netdev_priv(netdev); |
| int status = 0; |
| |
| if (!adapter->sriov_enabled) |
| return -EPERM; |
| |
| if ((vf >= num_vfs) || (vlan > 4095)) |
| return -EINVAL; |
| |
| if (vlan) { |
| adapter->vf_cfg[vf].vf_vlan_tag = vlan; |
| adapter->vlans_added++; |
| } else { |
| adapter->vf_cfg[vf].vf_vlan_tag = 0; |
| adapter->vlans_added--; |
| } |
| |
| status = be_vid_config(adapter, true, vf); |
| |
| if (status) |
| dev_info(&adapter->pdev->dev, |
| "VLAN %d config on VF %d failed\n", vlan, vf); |
| return status; |
| } |
| |
| static int be_set_vf_tx_rate(struct net_device *netdev, |
| int vf, int rate) |
| { |
| struct be_adapter *adapter = netdev_priv(netdev); |
| int status = 0; |
| |
| if (!adapter->sriov_enabled) |
| return -EPERM; |
| |
| if ((vf >= num_vfs) || (rate < 0)) |
| return -EINVAL; |
| |
| if (rate > 10000) |
| rate = 10000; |
| |
| adapter->vf_cfg[vf].vf_tx_rate = rate; |
| status = be_cmd_set_qos(adapter, rate / 10, vf + 1); |
| |
| if (status) |
| dev_info(&adapter->pdev->dev, |
| "tx rate %d on VF %d failed\n", rate, vf); |
| return status; |
| } |
| |
| static void be_rx_rate_update(struct be_rx_obj *rxo) |
| { |
| struct be_rx_stats *stats = &rxo->stats; |
| ulong now = jiffies; |
| |
| /* Wrapped around */ |
| if (time_before(now, stats->rx_jiffies)) { |
| stats->rx_jiffies = now; |
| return; |
| } |
| |
| /* Update the rate once in two seconds */ |
| if ((now - stats->rx_jiffies) < 2 * HZ) |
| return; |
| |
| stats->rx_rate = be_calc_rate(stats->rx_bytes - stats->rx_bytes_prev, |
| now - stats->rx_jiffies); |
| stats->rx_jiffies = now; |
| stats->rx_bytes_prev = stats->rx_bytes; |
| } |
| |
| static void be_rx_stats_update(struct be_rx_obj *rxo, |
| struct be_rx_compl_info *rxcp) |
| { |
| struct be_rx_stats *stats = &rxo->stats; |
| |
| stats->rx_compl++; |
| stats->rx_frags += rxcp->num_rcvd; |
| stats->rx_bytes += rxcp->pkt_size; |
| stats->rx_pkts++; |
| if (rxcp->pkt_type == BE_MULTICAST_PACKET) |
| stats->rx_mcast_pkts++; |
| if (rxcp->err) |
| stats->rxcp_err++; |
| } |
| |
| static inline bool csum_passed(struct be_rx_compl_info *rxcp) |
| { |
| /* L4 checksum is not reliable for non TCP/UDP packets. |
| * Also ignore ipcksm for ipv6 pkts */ |
| return (rxcp->tcpf || rxcp->udpf) && rxcp->l4_csum && |
| (rxcp->ip_csum || rxcp->ipv6); |
| } |
| |
| static struct be_rx_page_info * |
| get_rx_page_info(struct be_adapter *adapter, |
| struct be_rx_obj *rxo, |
| u16 frag_idx) |
| { |
| struct be_rx_page_info *rx_page_info; |
| struct be_queue_info *rxq = &rxo->q; |
| |
| rx_page_info = &rxo->page_info_tbl[frag_idx]; |
| BUG_ON(!rx_page_info->page); |
| |
| if (rx_page_info->last_page_user) { |
| dma_unmap_page(&adapter->pdev->dev, |
| dma_unmap_addr(rx_page_info, bus), |
| adapter->big_page_size, DMA_FROM_DEVICE); |
| rx_page_info->last_page_user = false; |
| } |
| |
| atomic_dec(&rxq->used); |
| return rx_page_info; |
| } |
| |
| /* Throwaway the data in the Rx completion */ |
| static void be_rx_compl_discard(struct be_adapter *adapter, |
| struct be_rx_obj *rxo, |
| struct be_rx_compl_info *rxcp) |
| { |
| struct be_queue_info *rxq = &rxo->q; |
| struct be_rx_page_info *page_info; |
| u16 i, num_rcvd = rxcp->num_rcvd; |
| |
| for (i = 0; i < num_rcvd; i++) { |
| page_info = get_rx_page_info(adapter, rxo, rxcp->rxq_idx); |
| put_page(page_info->page); |
| memset(page_info, 0, sizeof(*page_info)); |
| index_inc(&rxcp->rxq_idx, rxq->len); |
| } |
| } |
| |
| /* |
| * skb_fill_rx_data forms a complete skb for an ether frame |
| * indicated by rxcp. |
| */ |
| static void skb_fill_rx_data(struct be_adapter *adapter, struct be_rx_obj *rxo, |
| struct sk_buff *skb, struct be_rx_compl_info *rxcp) |
| { |
| struct be_queue_info *rxq = &rxo->q; |
| struct be_rx_page_info *page_info; |
| u16 i, j; |
| u16 hdr_len, curr_frag_len, remaining; |
| u8 *start; |
| |
| page_info = get_rx_page_info(adapter, rxo, rxcp->rxq_idx); |
| start = page_address(page_info->page) + page_info->page_offset; |
| prefetch(start); |
| |
| /* Copy data in the first descriptor of this completion */ |
| curr_frag_len = min(rxcp->pkt_size, rx_frag_size); |
| |
| /* Copy the header portion into skb_data */ |
| hdr_len = min(BE_HDR_LEN, curr_frag_len); |
| memcpy(skb->data, start, hdr_len); |
| skb->len = curr_frag_len; |
| if (curr_frag_len <= BE_HDR_LEN) { /* tiny packet */ |
| /* Complete packet has now been moved to data */ |
| put_page(page_info->page); |
| skb->data_len = 0; |
| skb->tail += curr_frag_len; |
| } else { |
| skb_shinfo(skb)->nr_frags = 1; |
| skb_shinfo(skb)->frags[0].page = page_info->page; |
| skb_shinfo(skb)->frags[0].page_offset = |
| page_info->page_offset + hdr_len; |
| skb_shinfo(skb)->frags[0].size = curr_frag_len - hdr_len; |
| skb->data_len = curr_frag_len - hdr_len; |
| skb->tail += hdr_len; |
| } |
| page_info->page = NULL; |
| |
| if (rxcp->pkt_size <= rx_frag_size) { |
| BUG_ON(rxcp->num_rcvd != 1); |
| return; |
| } |
| |
| /* More frags present for this completion */ |
| index_inc(&rxcp->rxq_idx, rxq->len); |
| remaining = rxcp->pkt_size - curr_frag_len; |
| for (i = 1, j = 0; i < rxcp->num_rcvd; i++) { |
| page_info = get_rx_page_info(adapter, rxo, rxcp->rxq_idx); |
| curr_frag_len = min(remaining, rx_frag_size); |
| |
| /* Coalesce all frags from the same physical page in one slot */ |
| if (page_info->page_offset == 0) { |
| /* Fresh page */ |
| j++; |
| skb_shinfo(skb)->frags[j].page = page_info->page; |
| skb_shinfo(skb)->frags[j].page_offset = |
| page_info->page_offset; |
| skb_shinfo(skb)->frags[j].size = 0; |
| skb_shinfo(skb)->nr_frags++; |
| } else { |
| put_page(page_info->page); |
| } |
| |
| skb_shinfo(skb)->frags[j].size += curr_frag_len; |
| skb->len += curr_frag_len; |
| skb->data_len += curr_frag_len; |
| |
| remaining -= curr_frag_len; |
| index_inc(&rxcp->rxq_idx, rxq->len); |
| page_info->page = NULL; |
| } |
| BUG_ON(j > MAX_SKB_FRAGS); |
| } |
| |
| /* Process the RX completion indicated by rxcp when GRO is disabled */ |
| static void be_rx_compl_process(struct be_adapter *adapter, |
| struct be_rx_obj *rxo, |
| struct be_rx_compl_info *rxcp) |
| { |
| struct sk_buff *skb; |
| |
| skb = netdev_alloc_skb_ip_align(adapter->netdev, BE_HDR_LEN); |
| if (unlikely(!skb)) { |
| if (net_ratelimit()) |
| dev_warn(&adapter->pdev->dev, "skb alloc failed\n"); |
| be_rx_compl_discard(adapter, rxo, rxcp); |
| return; |
| } |
| |
| skb_fill_rx_data(adapter, rxo, skb, rxcp); |
| |
| if (likely(adapter->rx_csum && csum_passed(rxcp))) |
| skb->ip_summed = CHECKSUM_UNNECESSARY; |
| else |
| skb_checksum_none_assert(skb); |
| |
| skb->truesize = skb->len + sizeof(struct sk_buff); |
| skb->protocol = eth_type_trans(skb, adapter->netdev); |
| if (adapter->netdev->features & NETIF_F_RXHASH) |
| skb->rxhash = rxcp->rss_hash; |
| |
| |
| if (unlikely(rxcp->vlanf)) { |
| if (!adapter->vlan_grp || adapter->vlans_added == 0) { |
| kfree_skb(skb); |
| return; |
| } |
| vlan_hwaccel_receive_skb(skb, adapter->vlan_grp, rxcp->vid); |
| } else { |
| netif_receive_skb(skb); |
| } |
| } |
| |
| /* Process the RX completion indicated by rxcp when GRO is enabled */ |
| static void be_rx_compl_process_gro(struct be_adapter *adapter, |
| struct be_rx_obj *rxo, |
| struct be_rx_compl_info *rxcp) |
| { |
| struct be_rx_page_info *page_info; |
| struct sk_buff *skb = NULL; |
| struct be_queue_info *rxq = &rxo->q; |
| struct be_eq_obj *eq_obj = &rxo->rx_eq; |
| u16 remaining, curr_frag_len; |
| u16 i, j; |
| |
| skb = napi_get_frags(&eq_obj->napi); |
| if (!skb) { |
| be_rx_compl_discard(adapter, rxo, rxcp); |
| return; |
| } |
| |
| remaining = rxcp->pkt_size; |
| for (i = 0, j = -1; i < rxcp->num_rcvd; i++) { |
| page_info = get_rx_page_info(adapter, rxo, rxcp->rxq_idx); |
| |
| curr_frag_len = min(remaining, rx_frag_size); |
| |
| /* Coalesce all frags from the same physical page in one slot */ |
| if (i == 0 || page_info->page_offset == 0) { |
| /* First frag or Fresh page */ |
| j++; |
| skb_shinfo(skb)->frags[j].page = page_info->page; |
| skb_shinfo(skb)->frags[j].page_offset = |
| page_info->page_offset; |
| skb_shinfo(skb)->frags[j].size = 0; |
| } else { |
| put_page(page_info->page); |
| } |
| skb_shinfo(skb)->frags[j].size += curr_frag_len; |
| |
| remaining -= curr_frag_len; |
| index_inc(&rxcp->rxq_idx, rxq->len); |
| memset(page_info, 0, sizeof(*page_info)); |
| } |
| BUG_ON(j > MAX_SKB_FRAGS); |
| |
| skb_shinfo(skb)->nr_frags = j + 1; |
| skb->len = rxcp->pkt_size; |
| skb->data_len = rxcp->pkt_size; |
| skb->truesize += rxcp->pkt_size; |
| skb->ip_summed = CHECKSUM_UNNECESSARY; |
| if (adapter->netdev->features & NETIF_F_RXHASH) |
| skb->rxhash = rxcp->rss_hash; |
| |
| if (likely(!rxcp->vlanf)) |
| napi_gro_frags(&eq_obj->napi); |
| else |
| vlan_gro_frags(&eq_obj->napi, adapter->vlan_grp, rxcp->vid); |
| } |
| |
| static void be_parse_rx_compl_v1(struct be_adapter *adapter, |
| struct be_eth_rx_compl *compl, |
| struct be_rx_compl_info *rxcp) |
| { |
| rxcp->pkt_size = |
| AMAP_GET_BITS(struct amap_eth_rx_compl_v1, pktsize, compl); |
| rxcp->vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vtp, compl); |
| rxcp->err = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, err, compl); |
| rxcp->tcpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, tcpf, compl); |
| rxcp->udpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, udpf, compl); |
| rxcp->ip_csum = |
| AMAP_GET_BITS(struct amap_eth_rx_compl_v1, ipcksm, compl); |
| rxcp->l4_csum = |
| AMAP_GET_BITS(struct amap_eth_rx_compl_v1, l4_cksm, compl); |
| rxcp->ipv6 = |
| AMAP_GET_BITS(struct amap_eth_rx_compl_v1, ip_version, compl); |
| rxcp->rxq_idx = |
| AMAP_GET_BITS(struct amap_eth_rx_compl_v1, fragndx, compl); |
| rxcp->num_rcvd = |
| AMAP_GET_BITS(struct amap_eth_rx_compl_v1, numfrags, compl); |
| rxcp->pkt_type = |
| AMAP_GET_BITS(struct amap_eth_rx_compl_v1, cast_enc, compl); |
| rxcp->rss_hash = |
| AMAP_GET_BITS(struct amap_eth_rx_compl_v1, rsshash, rxcp); |
| if (rxcp->vlanf) { |
| rxcp->vtm = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vtm, |
| compl); |
| rxcp->vid = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vlan_tag, |
| compl); |
| } |
| } |
| |
| static void be_parse_rx_compl_v0(struct be_adapter *adapter, |
| struct be_eth_rx_compl *compl, |
| struct be_rx_compl_info *rxcp) |
| { |
| rxcp->pkt_size = |
| AMAP_GET_BITS(struct amap_eth_rx_compl_v0, pktsize, compl); |
| rxcp->vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vtp, compl); |
| rxcp->err = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, err, compl); |
| rxcp->tcpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, tcpf, compl); |
| rxcp->udpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, udpf, compl); |
| rxcp->ip_csum = |
| AMAP_GET_BITS(struct amap_eth_rx_compl_v0, ipcksm, compl); |
| rxcp->l4_csum = |
| AMAP_GET_BITS(struct amap_eth_rx_compl_v0, l4_cksm, compl); |
| rxcp->ipv6 = |
| AMAP_GET_BITS(struct amap_eth_rx_compl_v0, ip_version, compl); |
| rxcp->rxq_idx = |
| AMAP_GET_BITS(struct amap_eth_rx_compl_v0, fragndx, compl); |
| rxcp->num_rcvd = |
| AMAP_GET_BITS(struct amap_eth_rx_compl_v0, numfrags, compl); |
| rxcp->pkt_type = |
| AMAP_GET_BITS(struct amap_eth_rx_compl_v0, cast_enc, compl); |
| rxcp->rss_hash = |
| AMAP_GET_BITS(struct amap_eth_rx_compl_v0, rsshash, rxcp); |
| if (rxcp->vlanf) { |
| rxcp->vtm = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vtm, |
| compl); |
| rxcp->vid = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vlan_tag, |
| compl); |
| } |
| } |
| |
| static struct be_rx_compl_info *be_rx_compl_get(struct be_rx_obj *rxo) |
| { |
| struct be_eth_rx_compl *compl = queue_tail_node(&rxo->cq); |
| struct be_rx_compl_info *rxcp = &rxo->rxcp; |
| struct be_adapter *adapter = rxo->adapter; |
| |
| /* For checking the valid bit it is Ok to use either definition as the |
| * valid bit is at the same position in both v0 and v1 Rx compl */ |
| if (compl->dw[offsetof(struct amap_eth_rx_compl_v1, valid) / 32] == 0) |
| return NULL; |
| |
| rmb(); |
| be_dws_le_to_cpu(compl, sizeof(*compl)); |
| |
| if (adapter->be3_native) |
| be_parse_rx_compl_v1(adapter, compl, rxcp); |
| else |
| be_parse_rx_compl_v0(adapter, compl, rxcp); |
| |
| if (rxcp->vlanf) { |
| /* vlanf could be wrongly set in some cards. |
| * ignore if vtm is not set */ |
| if ((adapter->function_mode & 0x400) && !rxcp->vtm) |
| rxcp->vlanf = 0; |
| |
| if (!lancer_chip(adapter)) |
| rxcp->vid = swab16(rxcp->vid); |
| |
| if ((adapter->pvid == rxcp->vid) && |
| !adapter->vlan_tag[rxcp->vid]) |
| rxcp->vlanf = 0; |
| } |
| |
| /* As the compl has been parsed, reset it; we wont touch it again */ |
| compl->dw[offsetof(struct amap_eth_rx_compl_v1, valid) / 32] = 0; |
| |
| queue_tail_inc(&rxo->cq); |
| return rxcp; |
| } |
| |
| static inline struct page *be_alloc_pages(u32 size, gfp_t gfp) |
| { |
| u32 order = get_order(size); |
| |
| if (order > 0) |
| gfp |= __GFP_COMP; |
| return alloc_pages(gfp, order); |
| } |
| |
| /* |
| * Allocate a page, split it to fragments of size rx_frag_size and post as |
| * receive buffers to BE |
| */ |
| static void be_post_rx_frags(struct be_rx_obj *rxo, gfp_t gfp) |
| { |
| struct be_adapter *adapter = rxo->adapter; |
| struct be_rx_page_info *page_info_tbl = rxo->page_info_tbl; |
| struct be_rx_page_info *page_info = NULL, *prev_page_info = NULL; |
| struct be_queue_info *rxq = &rxo->q; |
| struct page *pagep = NULL; |
| struct be_eth_rx_d *rxd; |
| u64 page_dmaaddr = 0, frag_dmaaddr; |
| u32 posted, page_offset = 0; |
| |
| page_info = &rxo->page_info_tbl[rxq->head]; |
| for (posted = 0; posted < MAX_RX_POST && !page_info->page; posted++) { |
| if (!pagep) { |
| pagep = be_alloc_pages(adapter->big_page_size, gfp); |
| if (unlikely(!pagep)) { |
| rxo->stats.rx_post_fail++; |
| break; |
| } |
| page_dmaaddr = dma_map_page(&adapter->pdev->dev, pagep, |
| 0, adapter->big_page_size, |
| DMA_FROM_DEVICE); |
| page_info->page_offset = 0; |
| } else { |
| get_page(pagep); |
| page_info->page_offset = page_offset + rx_frag_size; |
| } |
| page_offset = page_info->page_offset; |
| page_info->page = pagep; |
| dma_unmap_addr_set(page_info, bus, page_dmaaddr); |
| frag_dmaaddr = page_dmaaddr + page_info->page_offset; |
| |
| rxd = queue_head_node(rxq); |
| rxd->fragpa_lo = cpu_to_le32(frag_dmaaddr & 0xFFFFFFFF); |
| rxd->fragpa_hi = cpu_to_le32(upper_32_bits(frag_dmaaddr)); |
| |
| /* Any space left in the current big page for another frag? */ |
| if ((page_offset + rx_frag_size + rx_frag_size) > |
| adapter->big_page_size) { |
| pagep = NULL; |
| page_info->last_page_user = true; |
| } |
| |
| prev_page_info = page_info; |
| queue_head_inc(rxq); |
| page_info = &page_info_tbl[rxq->head]; |
| } |
| if (pagep) |
| prev_page_info->last_page_user = true; |
| |
| if (posted) { |
| atomic_add(posted, &rxq->used); |
| be_rxq_notify(adapter, rxq->id, posted); |
| } else if (atomic_read(&rxq->used) == 0) { |
| /* Let be_worker replenish when memory is available */ |
| rxo->rx_post_starved = true; |
| } |
| } |
| |
| static struct be_eth_tx_compl *be_tx_compl_get(struct be_queue_info *tx_cq) |
| { |
| struct be_eth_tx_compl *txcp = queue_tail_node(tx_cq); |
| |
| if (txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] == 0) |
| return NULL; |
| |
| rmb(); |
| be_dws_le_to_cpu(txcp, sizeof(*txcp)); |
| |
| txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] = 0; |
| |
| queue_tail_inc(tx_cq); |
| return txcp; |
| } |
| |
| static void be_tx_compl_process(struct be_adapter *adapter, u16 last_index) |
| { |
| struct be_queue_info *txq = &adapter->tx_obj.q; |
| struct be_eth_wrb *wrb; |
| struct sk_buff **sent_skbs = adapter->tx_obj.sent_skb_list; |
| struct sk_buff *sent_skb; |
| u16 cur_index, num_wrbs = 1; /* account for hdr wrb */ |
| bool unmap_skb_hdr = true; |
| |
| sent_skb = sent_skbs[txq->tail]; |
| BUG_ON(!sent_skb); |
| sent_skbs[txq->tail] = NULL; |
| |
| /* skip header wrb */ |
| queue_tail_inc(txq); |
| |
| do { |
| cur_index = txq->tail; |
| wrb = queue_tail_node(txq); |
| unmap_tx_frag(&adapter->pdev->dev, wrb, |
| (unmap_skb_hdr && skb_headlen(sent_skb))); |
| unmap_skb_hdr = false; |
| |
| num_wrbs++; |
| queue_tail_inc(txq); |
| } while (cur_index != last_index); |
| |
| atomic_sub(num_wrbs, &txq->used); |
| |
| kfree_skb(sent_skb); |
| } |
| |
| static inline struct be_eq_entry *event_get(struct be_eq_obj *eq_obj) |
| { |
| struct be_eq_entry *eqe = queue_tail_node(&eq_obj->q); |
| |
| if (!eqe->evt) |
| return NULL; |
| |
| rmb(); |
| eqe->evt = le32_to_cpu(eqe->evt); |
| queue_tail_inc(&eq_obj->q); |
| return eqe; |
| } |
| |
| static int event_handle(struct be_adapter *adapter, |
| struct be_eq_obj *eq_obj) |
| { |
| struct be_eq_entry *eqe; |
| u16 num = 0; |
| |
| while ((eqe = event_get(eq_obj)) != NULL) { |
| eqe->evt = 0; |
| num++; |
| } |
| |
| /* Deal with any spurious interrupts that come |
| * without events |
| */ |
| be_eq_notify(adapter, eq_obj->q.id, true, true, num); |
| if (num) |
| napi_schedule(&eq_obj->napi); |
| |
| return num; |
| } |
| |
| /* Just read and notify events without processing them. |
| * Used at the time of destroying event queues */ |
| static void be_eq_clean(struct be_adapter *adapter, |
| struct be_eq_obj *eq_obj) |
| { |
| struct be_eq_entry *eqe; |
| u16 num = 0; |
| |
| while ((eqe = event_get(eq_obj)) != NULL) { |
| eqe->evt = 0; |
| num++; |
| } |
| |
| if (num) |
| be_eq_notify(adapter, eq_obj->q.id, false, true, num); |
| } |
| |
| static void be_rx_q_clean(struct be_adapter *adapter, struct be_rx_obj *rxo) |
| { |
| struct be_rx_page_info *page_info; |
| struct be_queue_info *rxq = &rxo->q; |
| struct be_queue_info *rx_cq = &rxo->cq; |
| struct be_rx_compl_info *rxcp; |
| u16 tail; |
| |
| /* First cleanup pending rx completions */ |
| while ((rxcp = be_rx_compl_get(rxo)) != NULL) { |
| be_rx_compl_discard(adapter, rxo, rxcp); |
| be_cq_notify(adapter, rx_cq->id, false, 1); |
| } |
| |
| /* Then free posted rx buffer that were not used */ |
| tail = (rxq->head + rxq->len - atomic_read(&rxq->used)) % rxq->len; |
| for (; atomic_read(&rxq->used) > 0; index_inc(&tail, rxq->len)) { |
| page_info = get_rx_page_info(adapter, rxo, tail); |
| put_page(page_info->page); |
| memset(page_info, 0, sizeof(*page_info)); |
| } |
| BUG_ON(atomic_read(&rxq->used)); |
| } |
| |
| static void be_tx_compl_clean(struct be_adapter *adapter) |
| { |
| struct be_queue_info *tx_cq = &adapter->tx_obj.cq; |
| struct be_queue_info *txq = &adapter->tx_obj.q; |
| struct be_eth_tx_compl *txcp; |
| u16 end_idx, cmpl = 0, timeo = 0; |
| struct sk_buff **sent_skbs = adapter->tx_obj.sent_skb_list; |
| struct sk_buff *sent_skb; |
| bool dummy_wrb; |
| |
| /* Wait for a max of 200ms for all the tx-completions to arrive. */ |
| do { |
| while ((txcp = be_tx_compl_get(tx_cq))) { |
| end_idx = AMAP_GET_BITS(struct amap_eth_tx_compl, |
| wrb_index, txcp); |
| be_tx_compl_process(adapter, end_idx); |
| cmpl++; |
| } |
| if (cmpl) { |
| be_cq_notify(adapter, tx_cq->id, false, cmpl); |
| cmpl = 0; |
| } |
| |
| if (atomic_read(&txq->used) == 0 || ++timeo > 200) |
| break; |
| |
| mdelay(1); |
| } while (true); |
| |
| if (atomic_read(&txq->used)) |
| dev_err(&adapter->pdev->dev, "%d pending tx-completions\n", |
| atomic_read(&txq->used)); |
| |
| /* free posted tx for which compls will never arrive */ |
| while (atomic_read(&txq->used)) { |
| sent_skb = sent_skbs[txq->tail]; |
| end_idx = txq->tail; |
| index_adv(&end_idx, |
| wrb_cnt_for_skb(adapter, sent_skb, &dummy_wrb) - 1, |
| txq->len); |
| be_tx_compl_process(adapter, end_idx); |
| } |
| } |
| |
| static void be_mcc_queues_destroy(struct be_adapter *adapter) |
| { |
| struct be_queue_info *q; |
| |
| q = &adapter->mcc_obj.q; |
| if (q->created) |
| be_cmd_q_destroy(adapter, q, QTYPE_MCCQ); |
| be_queue_free(adapter, q); |
| |
| q = &adapter->mcc_obj.cq; |
| if (q->created) |
| be_cmd_q_destroy(adapter, q, QTYPE_CQ); |
| be_queue_free(adapter, q); |
| } |
| |
| /* Must be called only after TX qs are created as MCC shares TX EQ */ |
| static int be_mcc_queues_create(struct be_adapter *adapter) |
| { |
| struct be_queue_info *q, *cq; |
| |
| /* Alloc MCC compl queue */ |
| cq = &adapter->mcc_obj.cq; |
| if (be_queue_alloc(adapter, cq, MCC_CQ_LEN, |
| sizeof(struct be_mcc_compl))) |
| goto err; |
| |
| /* Ask BE to create MCC compl queue; share TX's eq */ |
| if (be_cmd_cq_create(adapter, cq, &adapter->tx_eq.q, false, true, 0)) |
| goto mcc_cq_free; |
| |
| /* Alloc MCC queue */ |
| q = &adapter->mcc_obj.q; |
| if (be_queue_alloc(adapter, q, MCC_Q_LEN, sizeof(struct be_mcc_wrb))) |
| goto mcc_cq_destroy; |
| |
| /* Ask BE to create MCC queue */ |
| if (be_cmd_mccq_create(adapter, q, cq)) |
| goto mcc_q_free; |
| |
| return 0; |
| |
| mcc_q_free: |
| be_queue_free(adapter, q); |
| mcc_cq_destroy: |
| be_cmd_q_destroy(adapter, cq, QTYPE_CQ); |
| mcc_cq_free: |
| be_queue_free(adapter, cq); |
| err: |
| return -1; |
| } |
| |
| static void be_tx_queues_destroy(struct be_adapter *adapter) |
| { |
| struct be_queue_info *q; |
| |
| q = &adapter->tx_obj.q; |
| if (q->created) |
| be_cmd_q_destroy(adapter, q, QTYPE_TXQ); |
| be_queue_free(adapter, q); |
| |
| q = &adapter->tx_obj.cq; |
| if (q->created) |
| be_cmd_q_destroy(adapter, q, QTYPE_CQ); |
| be_queue_free(adapter, q); |
| |
| /* Clear any residual events */ |
| be_eq_clean(adapter, &adapter->tx_eq); |
| |
| q = &adapter->tx_eq.q; |
| if (q->created) |
| be_cmd_q_destroy(adapter, q, QTYPE_EQ); |
| be_queue_free(adapter, q); |
| } |
| |
| static int be_tx_queues_create(struct be_adapter *adapter) |
| { |
| struct be_queue_info *eq, *q, *cq; |
| |
| adapter->tx_eq.max_eqd = 0; |
| adapter->tx_eq.min_eqd = 0; |
| adapter->tx_eq.cur_eqd = 96; |
| adapter->tx_eq.enable_aic = false; |
| /* Alloc Tx Event queue */ |
| eq = &adapter->tx_eq.q; |
| if (be_queue_alloc(adapter, eq, EVNT_Q_LEN, sizeof(struct be_eq_entry))) |
| return -1; |
| |
| /* Ask BE to create Tx Event queue */ |
| if (be_cmd_eq_create(adapter, eq, adapter->tx_eq.cur_eqd)) |
| goto tx_eq_free; |
| |
| adapter->tx_eq.eq_idx = adapter->eq_next_idx++; |
| |
| |
| /* Alloc TX eth compl queue */ |
| cq = &adapter->tx_obj.cq; |
| if (be_queue_alloc(adapter, cq, TX_CQ_LEN, |
| sizeof(struct be_eth_tx_compl))) |
| goto tx_eq_destroy; |
| |
| /* Ask BE to create Tx eth compl queue */ |
| if (be_cmd_cq_create(adapter, cq, eq, false, false, 3)) |
| goto tx_cq_free; |
| |
| /* Alloc TX eth queue */ |
| q = &adapter->tx_obj.q; |
| if (be_queue_alloc(adapter, q, TX_Q_LEN, sizeof(struct be_eth_wrb))) |
| goto tx_cq_destroy; |
| |
| /* Ask BE to create Tx eth queue */ |
| if (be_cmd_txq_create(adapter, q, cq)) |
| goto tx_q_free; |
| return 0; |
| |
| tx_q_free: |
| be_queue_free(adapter, q); |
| tx_cq_destroy: |
| be_cmd_q_destroy(adapter, cq, QTYPE_CQ); |
| tx_cq_free: |
| be_queue_free(adapter, cq); |
| tx_eq_destroy: |
| be_cmd_q_destroy(adapter, eq, QTYPE_EQ); |
| tx_eq_free: |
| be_queue_free(adapter, eq); |
| return -1; |
| } |
| |
| static void be_rx_queues_destroy(struct be_adapter *adapter) |
| { |
| struct be_queue_info *q; |
| struct be_rx_obj *rxo; |
| int i; |
| |
| for_all_rx_queues(adapter, rxo, i) { |
| q = &rxo->q; |
| if (q->created) { |
| be_cmd_q_destroy(adapter, q, QTYPE_RXQ); |
| /* After the rxq is invalidated, wait for a grace time |
| * of 1ms for all dma to end and the flush compl to |
| * arrive |
| */ |
| mdelay(1); |
| be_rx_q_clean(adapter, rxo); |
| } |
| be_queue_free(adapter, q); |
| |
| q = &rxo->cq; |
| if (q->created) |
| be_cmd_q_destroy(adapter, q, QTYPE_CQ); |
| be_queue_free(adapter, q); |
| |
| /* Clear any residual events */ |
| q = &rxo->rx_eq.q; |
| if (q->created) { |
| be_eq_clean(adapter, &rxo->rx_eq); |
| be_cmd_q_destroy(adapter, q, QTYPE_EQ); |
| } |
| be_queue_free(adapter, q); |
| } |
| } |
| |
| static u32 be_num_rxqs_want(struct be_adapter *adapter) |
| { |
| if (multi_rxq && (adapter->function_caps & BE_FUNCTION_CAPS_RSS) && |
| !adapter->sriov_enabled && !(adapter->function_mode & 0x400)) { |
| return 1 + MAX_RSS_QS; /* one default non-RSS queue */ |
| } else { |
| dev_warn(&adapter->pdev->dev, |
| "No support for multiple RX queues\n"); |
| return 1; |
| } |
| } |
| |
| static int be_rx_queues_create(struct be_adapter *adapter) |
| { |
| struct be_queue_info *eq, *q, *cq; |
| struct be_rx_obj *rxo; |
| int rc, i; |
| |
| adapter->num_rx_qs = min(be_num_rxqs_want(adapter), |
| msix_enabled(adapter) ? |
| adapter->num_msix_vec - 1 : 1); |
| if (adapter->num_rx_qs != MAX_RX_QS) |
| dev_warn(&adapter->pdev->dev, |
| "Can create only %d RX queues", adapter->num_rx_qs); |
| |
| adapter->big_page_size = (1 << get_order(rx_frag_size)) * PAGE_SIZE; |
| for_all_rx_queues(adapter, rxo, i) { |
| rxo->adapter = adapter; |
| rxo->rx_eq.max_eqd = BE_MAX_EQD; |
| rxo->rx_eq.enable_aic = true; |
| |
| /* EQ */ |
| eq = &rxo->rx_eq.q; |
| rc = be_queue_alloc(adapter, eq, EVNT_Q_LEN, |
| sizeof(struct be_eq_entry)); |
| if (rc) |
| goto err; |
| |
| rc = be_cmd_eq_create(adapter, eq, rxo->rx_eq.cur_eqd); |
| if (rc) |
| goto err; |
| |
| rxo->rx_eq.eq_idx = adapter->eq_next_idx++; |
| |
| /* CQ */ |
| cq = &rxo->cq; |
| rc = be_queue_alloc(adapter, cq, RX_CQ_LEN, |
| sizeof(struct be_eth_rx_compl)); |
| if (rc) |
| goto err; |
| |
| rc = be_cmd_cq_create(adapter, cq, eq, false, false, 3); |
| if (rc) |
| goto err; |
| /* Rx Q */ |
| q = &rxo->q; |
| rc = be_queue_alloc(adapter, q, RX_Q_LEN, |
| sizeof(struct be_eth_rx_d)); |
| if (rc) |
| goto err; |
| |
| rc = be_cmd_rxq_create(adapter, q, cq->id, rx_frag_size, |
| BE_MAX_JUMBO_FRAME_SIZE, adapter->if_handle, |
| (i > 0) ? 1 : 0/* rss enable */, &rxo->rss_id); |
| if (rc) |
| goto err; |
| } |
| |
| if (be_multi_rxq(adapter)) { |
| u8 rsstable[MAX_RSS_QS]; |
| |
| for_all_rss_queues(adapter, rxo, i) |
| rsstable[i] = rxo->rss_id; |
| |
| rc = be_cmd_rss_config(adapter, rsstable, |
| adapter->num_rx_qs - 1); |
| if (rc) |
| goto err; |
| } |
| |
| return 0; |
| err: |
| be_rx_queues_destroy(adapter); |
| return -1; |
| } |
| |
| static bool event_peek(struct be_eq_obj *eq_obj) |
| { |
| struct be_eq_entry *eqe = queue_tail_node(&eq_obj->q); |
| if (!eqe->evt) |
| return false; |
| else |
| return true; |
| } |
| |
| static irqreturn_t be_intx(int irq, void *dev) |
| { |
| struct be_adapter *adapter = dev; |
| struct be_rx_obj *rxo; |
| int isr, i, tx = 0 , rx = 0; |
| |
| if (lancer_chip(adapter)) { |
| if (event_peek(&adapter->tx_eq)) |
| tx = event_handle(adapter, &adapter->tx_eq); |
| for_all_rx_queues(adapter, rxo, i) { |
| if (event_peek(&rxo->rx_eq)) |
| rx |= event_handle(adapter, &rxo->rx_eq); |
| } |
| |
| if (!(tx || rx)) |
| return IRQ_NONE; |
| |
| } else { |
| isr = ioread32(adapter->csr + CEV_ISR0_OFFSET + |
| (adapter->tx_eq.q.id / 8) * CEV_ISR_SIZE); |
| if (!isr) |
| return IRQ_NONE; |
| |
| if ((1 << adapter->tx_eq.eq_idx & isr)) |
| event_handle(adapter, &adapter->tx_eq); |
| |
| for_all_rx_queues(adapter, rxo, i) { |
| if ((1 << rxo->rx_eq.eq_idx & isr)) |
| event_handle(adapter, &rxo->rx_eq); |
| } |
| } |
| |
| return IRQ_HANDLED; |
| } |
| |
| static irqreturn_t be_msix_rx(int irq, void *dev) |
| { |
| struct be_rx_obj *rxo = dev; |
| struct be_adapter *adapter = rxo->adapter; |
| |
| event_handle(adapter, &rxo->rx_eq); |
| |
| return IRQ_HANDLED; |
| } |
| |
| static irqreturn_t be_msix_tx_mcc(int irq, void *dev) |
| { |
| struct be_adapter *adapter = dev; |
| |
| event_handle(adapter, &adapter->tx_eq); |
| |
| return IRQ_HANDLED; |
| } |
| |
| static inline bool do_gro(struct be_rx_compl_info *rxcp) |
| { |
| return (rxcp->tcpf && !rxcp->err) ? true : false; |
| } |
| |
| static int be_poll_rx(struct napi_struct *napi, int budget) |
| { |
| struct be_eq_obj *rx_eq = container_of(napi, struct be_eq_obj, napi); |
| struct be_rx_obj *rxo = container_of(rx_eq, struct be_rx_obj, rx_eq); |
| struct be_adapter *adapter = rxo->adapter; |
| struct be_queue_info *rx_cq = &rxo->cq; |
| struct be_rx_compl_info *rxcp; |
| u32 work_done; |
| |
| rxo->stats.rx_polls++; |
| for (work_done = 0; work_done < budget; work_done++) { |
| rxcp = be_rx_compl_get(rxo); |
| if (!rxcp) |
| break; |
| |
| /* Ignore flush completions */ |
| if (rxcp->num_rcvd) { |
| if (do_gro(rxcp)) |
| be_rx_compl_process_gro(adapter, rxo, rxcp); |
| else |
| be_rx_compl_process(adapter, rxo, rxcp); |
| } |
| be_rx_stats_update(rxo, rxcp); |
| } |
| |
| /* Refill the queue */ |
| if (atomic_read(&rxo->q.used) < RX_FRAGS_REFILL_WM) |
| be_post_rx_frags(rxo, GFP_ATOMIC); |
| |
| /* All consumed */ |
| if (work_done < budget) { |
| napi_complete(napi); |
| be_cq_notify(adapter, rx_cq->id, true, work_done); |
| } else { |
| /* More to be consumed; continue with interrupts disabled */ |
| be_cq_notify(adapter, rx_cq->id, false, work_done); |
| } |
| return work_done; |
| } |
| |
| /* As TX and MCC share the same EQ check for both TX and MCC completions. |
| * For TX/MCC we don't honour budget; consume everything |
| */ |
| static int be_poll_tx_mcc(struct napi_struct *napi, int budget) |
| { |
| struct be_eq_obj *tx_eq = container_of(napi, struct be_eq_obj, napi); |
| struct be_adapter *adapter = |
| container_of(tx_eq, struct be_adapter, tx_eq); |
| struct be_queue_info *txq = &adapter->tx_obj.q; |
| struct be_queue_info *tx_cq = &adapter->tx_obj.cq; |
| struct be_eth_tx_compl *txcp; |
| int tx_compl = 0, mcc_compl, status = 0; |
| u16 end_idx; |
| |
| while ((txcp = be_tx_compl_get(tx_cq))) { |
| end_idx = AMAP_GET_BITS(struct amap_eth_tx_compl, |
| wrb_index, txcp); |
| be_tx_compl_process(adapter, end_idx); |
| tx_compl++; |
| } |
| |
| mcc_compl = be_process_mcc(adapter, &status); |
| |
| napi_complete(napi); |
| |
| if (mcc_compl) { |
| struct be_mcc_obj *mcc_obj = &adapter->mcc_obj; |
| be_cq_notify(adapter, mcc_obj->cq.id, true, mcc_compl); |
| } |
| |
| if (tx_compl) { |
| be_cq_notify(adapter, adapter->tx_obj.cq.id, true, tx_compl); |
| |
| /* As Tx wrbs have been freed up, wake up netdev queue if |
| * it was stopped due to lack of tx wrbs. |
| */ |
| if (netif_queue_stopped(adapter->netdev) && |
| atomic_read(&txq->used) < txq->len / 2) { |
| netif_wake_queue(adapter->netdev); |
| } |
| |
| tx_stats(adapter)->be_tx_events++; |
| tx_stats(adapter)->be_tx_compl += tx_compl; |
| } |
| |
| return 1; |
| } |
| |
| void be_detect_dump_ue(struct be_adapter *adapter) |
| { |
| u32 ue_status_lo, ue_status_hi, ue_status_lo_mask, ue_status_hi_mask; |
| u32 i; |
| |
| pci_read_config_dword(adapter->pdev, |
| PCICFG_UE_STATUS_LOW, &ue_status_lo); |
| pci_read_config_dword(adapter->pdev, |
| PCICFG_UE_STATUS_HIGH, &ue_status_hi); |
| pci_read_config_dword(adapter->pdev, |
| PCICFG_UE_STATUS_LOW_MASK, &ue_status_lo_mask); |
| pci_read_config_dword(adapter->pdev, |
| PCICFG_UE_STATUS_HI_MASK, &ue_status_hi_mask); |
| |
| ue_status_lo = (ue_status_lo & (~ue_status_lo_mask)); |
| ue_status_hi = (ue_status_hi & (~ue_status_hi_mask)); |
| |
| if (ue_status_lo || ue_status_hi) { |
| adapter->ue_detected = true; |
| adapter->eeh_err = true; |
| dev_err(&adapter->pdev->dev, "UE Detected!!\n"); |
| } |
| |
| if (ue_status_lo) { |
| for (i = 0; ue_status_lo; ue_status_lo >>= 1, i++) { |
| if (ue_status_lo & 1) |
| dev_err(&adapter->pdev->dev, |
| "UE: %s bit set\n", ue_status_low_desc[i]); |
| } |
| } |
| if (ue_status_hi) { |
| for (i = 0; ue_status_hi; ue_status_hi >>= 1, i++) { |
| if (ue_status_hi & 1) |
| dev_err(&adapter->pdev->dev, |
| "UE: %s bit set\n", ue_status_hi_desc[i]); |
| } |
| } |
| |
| } |
| |
| static void be_worker(struct work_struct *work) |
| { |
| struct be_adapter *adapter = |
| container_of(work, struct be_adapter, work.work); |
| struct be_rx_obj *rxo; |
| int i; |
| |
| if (!adapter->ue_detected && !lancer_chip(adapter)) |
| be_detect_dump_ue(adapter); |
| |
| /* when interrupts are not yet enabled, just reap any pending |
| * mcc completions */ |
| if (!netif_running(adapter->netdev)) { |
| int mcc_compl, status = 0; |
| |
| mcc_compl = be_process_mcc(adapter, &status); |
| |
| if (mcc_compl) { |
| struct be_mcc_obj *mcc_obj = &adapter->mcc_obj; |
| be_cq_notify(adapter, mcc_obj->cq.id, false, mcc_compl); |
| } |
| |
| goto reschedule; |
| } |
| |
| if (!adapter->stats_cmd_sent) |
| be_cmd_get_stats(adapter, &adapter->stats_cmd); |
| |
| be_tx_rate_update(adapter); |
| |
| for_all_rx_queues(adapter, rxo, i) { |
| be_rx_rate_update(rxo); |
| be_rx_eqd_update(adapter, rxo); |
| |
| if (rxo->rx_post_starved) { |
| rxo->rx_post_starved = false; |
| be_post_rx_frags(rxo, GFP_KERNEL); |
| } |
| } |
| |
| reschedule: |
| schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000)); |
| } |
| |
| static void be_msix_disable(struct be_adapter *adapter) |
| { |
| if (msix_enabled(adapter)) { |
| pci_disable_msix(adapter->pdev); |
| adapter->num_msix_vec = 0; |
| } |
| } |
| |
| static void be_msix_enable(struct be_adapter *adapter) |
| { |
| #define BE_MIN_MSIX_VECTORS (1 + 1) /* Rx + Tx */ |
| int i, status, num_vec; |
| |
| num_vec = be_num_rxqs_want(adapter) + 1; |
| |
| for (i = 0; i < num_vec; i++) |
| adapter->msix_entries[i].entry = i; |
| |
| status = pci_enable_msix(adapter->pdev, adapter->msix_entries, num_vec); |
| if (status == 0) { |
| goto done; |
| } else if (status >= BE_MIN_MSIX_VECTORS) { |
| num_vec = status; |
| if (pci_enable_msix(adapter->pdev, adapter->msix_entries, |
| num_vec) == 0) |
| goto done; |
| } |
| return; |
| done: |
| adapter->num_msix_vec = num_vec; |
| return; |
| } |
| |
| static void be_sriov_enable(struct be_adapter *adapter) |
| { |
| be_check_sriov_fn_type(adapter); |
| #ifdef CONFIG_PCI_IOV |
| if (be_physfn(adapter) && num_vfs) { |
| int status, pos; |
| u16 nvfs; |
| |
| pos = pci_find_ext_capability(adapter->pdev, |
| PCI_EXT_CAP_ID_SRIOV); |
| pci_read_config_word(adapter->pdev, |
| pos + PCI_SRIOV_TOTAL_VF, &nvfs); |
| |
| if (num_vfs > nvfs) { |
| dev_info(&adapter->pdev->dev, |
| "Device supports %d VFs and not %d\n", |
| nvfs, num_vfs); |
| num_vfs = nvfs; |
| } |
| |
| status = pci_enable_sriov(adapter->pdev, num_vfs); |
| adapter->sriov_enabled = status ? false : true; |
| } |
| #endif |
| } |
| |
| static void be_sriov_disable(struct be_adapter *adapter) |
| { |
| #ifdef CONFIG_PCI_IOV |
| if (adapter->sriov_enabled) { |
| pci_disable_sriov(adapter->pdev); |
| adapter->sriov_enabled = false; |
| } |
| #endif |
| } |
| |
| static inline int be_msix_vec_get(struct be_adapter *adapter, |
| struct be_eq_obj *eq_obj) |
| { |
| return adapter->msix_entries[eq_obj->eq_idx].vector; |
| } |
| |
| static int be_request_irq(struct be_adapter *adapter, |
| struct be_eq_obj *eq_obj, |
| void *handler, char *desc, void *context) |
| { |
| struct net_device *netdev = adapter->netdev; |
| int vec; |
| |
| sprintf(eq_obj->desc, "%s-%s", netdev->name, desc); |
| vec = be_msix_vec_get(adapter, eq_obj); |
| return request_irq(vec, handler, 0, eq_obj->desc, context); |
| } |
| |
| static void be_free_irq(struct be_adapter *adapter, struct be_eq_obj *eq_obj, |
| void *context) |
| { |
| int vec = be_msix_vec_get(adapter, eq_obj); |
| free_irq(vec, context); |
| } |
| |
| static int be_msix_register(struct be_adapter *adapter) |
| { |
| struct be_rx_obj *rxo; |
| int status, i; |
| char qname[10]; |
| |
| status = be_request_irq(adapter, &adapter->tx_eq, be_msix_tx_mcc, "tx", |
| adapter); |
| if (status) |
| goto err; |
| |
| for_all_rx_queues(adapter, rxo, i) { |
| sprintf(qname, "rxq%d", i); |
| status = be_request_irq(adapter, &rxo->rx_eq, be_msix_rx, |
| qname, rxo); |
| if (status) |
| goto err_msix; |
| } |
| |
| return 0; |
| |
| err_msix: |
| be_free_irq(adapter, &adapter->tx_eq, adapter); |
| |
| for (i--, rxo = &adapter->rx_obj[i]; i >= 0; i--, rxo--) |
| be_free_irq(adapter, &rxo->rx_eq, rxo); |
| |
| err: |
| dev_warn(&adapter->pdev->dev, |
| "MSIX Request IRQ failed - err %d\n", status); |
| be_msix_disable(adapter); |
| return status; |
| } |
| |
| static int be_irq_register(struct be_adapter *adapter) |
| { |
| struct net_device *netdev = adapter->netdev; |
| int status; |
| |
| if (msix_enabled(adapter)) { |
| status = be_msix_register(adapter); |
| if (status == 0) |
| goto done; |
| /* INTx is not supported for VF */ |
| if (!be_physfn(adapter)) |
| return status; |
| } |
| |
| /* INTx */ |
| netdev->irq = adapter->pdev->irq; |
| status = request_irq(netdev->irq, be_intx, IRQF_SHARED, netdev->name, |
| adapter); |
| if (status) { |
| dev_err(&adapter->pdev->dev, |
| "INTx request IRQ failed - err %d\n", status); |
| return status; |
| } |
| done: |
| adapter->isr_registered = true; |
| return 0; |
| } |
| |
| static void be_irq_unregister(struct be_adapter *adapter) |
| { |
| struct net_device *netdev = adapter->netdev; |
| struct be_rx_obj *rxo; |
| int i; |
| |
| if (!adapter->isr_registered) |
| return; |
| |
| /* INTx */ |
| if (!msix_enabled(adapter)) { |
| free_irq(netdev->irq, adapter); |
| goto done; |
| } |
| |
| /* MSIx */ |
| be_free_irq(adapter, &adapter->tx_eq, adapter); |
| |
| for_all_rx_queues(adapter, rxo, i) |
| be_free_irq(adapter, &rxo->rx_eq, rxo); |
| |
| done: |
| adapter->isr_registered = false; |
| } |
| |
| static int be_close(struct net_device *netdev) |
| { |
| struct be_adapter *adapter = netdev_priv(netdev); |
| struct be_rx_obj *rxo; |
| struct be_eq_obj *tx_eq = &adapter->tx_eq; |
| int vec, i; |
| |
| be_async_mcc_disable(adapter); |
| |
| netif_carrier_off(netdev); |
| adapter->link_up = false; |
| |
| if (!lancer_chip(adapter)) |
| be_intr_set(adapter, false); |
| |
| for_all_rx_queues(adapter, rxo, i) |
| napi_disable(&rxo->rx_eq.napi); |
| |
| napi_disable(&tx_eq->napi); |
| |
| if (lancer_chip(adapter)) { |
| be_cq_notify(adapter, adapter->tx_obj.cq.id, false, 0); |
| be_cq_notify(adapter, adapter->mcc_obj.cq.id, false, 0); |
| for_all_rx_queues(adapter, rxo, i) |
| be_cq_notify(adapter, rxo->cq.id, false, 0); |
| } |
| |
| if (msix_enabled(adapter)) { |
| vec = be_msix_vec_get(adapter, tx_eq); |
| synchronize_irq(vec); |
| |
| for_all_rx_queues(adapter, rxo, i) { |
| vec = be_msix_vec_get(adapter, &rxo->rx_eq); |
| synchronize_irq(vec); |
| } |
| } else { |
| synchronize_irq(netdev->irq); |
| } |
| be_irq_unregister(adapter); |
| |
| /* Wait for all pending tx completions to arrive so that |
| * all tx skbs are freed. |
| */ |
| be_tx_compl_clean(adapter); |
| |
| return 0; |
| } |
| |
| static int be_open(struct net_device *netdev) |
| { |
| struct be_adapter *adapter = netdev_priv(netdev); |
| struct be_eq_obj *tx_eq = &adapter->tx_eq; |
| struct be_rx_obj *rxo; |
| bool link_up; |
| int status, i; |
| u8 mac_speed; |
| u16 link_speed; |
| |
| for_all_rx_queues(adapter, rxo, i) { |
| be_post_rx_frags(rxo, GFP_KERNEL); |
| napi_enable(&rxo->rx_eq.napi); |
| } |
| napi_enable(&tx_eq->napi); |
| |
| be_irq_register(adapter); |
| |
| if (!lancer_chip(adapter)) |
| be_intr_set(adapter, true); |
| |
| /* The evt queues are created in unarmed state; arm them */ |
| for_all_rx_queues(adapter, rxo, i) { |
| be_eq_notify(adapter, rxo->rx_eq.q.id, true, false, 0); |
| be_cq_notify(adapter, rxo->cq.id, true, 0); |
| } |
| be_eq_notify(adapter, tx_eq->q.id, true, false, 0); |
| |
| /* Now that interrupts are on we can process async mcc */ |
| be_async_mcc_enable(adapter); |
| |
| status = be_cmd_link_status_query(adapter, &link_up, &mac_speed, |
| &link_speed); |
| if (status) |
| goto err; |
| be_link_status_update(adapter, link_up); |
| |
| if (be_physfn(adapter)) { |
| status = be_vid_config(adapter, false, 0); |
| if (status) |
| goto err; |
| |
| status = be_cmd_set_flow_control(adapter, |
| adapter->tx_fc, adapter->rx_fc); |
| if (status) |
| goto err; |
| } |
| |
| return 0; |
| err: |
| be_close(adapter->netdev); |
| return -EIO; |
| } |
| |
| static int be_setup_wol(struct be_adapter *adapter, bool enable) |
| { |
| struct be_dma_mem cmd; |
| int status = 0; |
| u8 mac[ETH_ALEN]; |
| |
| memset(mac, 0, ETH_ALEN); |
| |
| cmd.size = sizeof(struct be_cmd_req_acpi_wol_magic_config); |
| cmd.va = dma_alloc_coherent(&adapter->pdev->dev, cmd.size, &cmd.dma, |
| GFP_KERNEL); |
| if (cmd.va == NULL) |
| return -1; |
| memset(cmd.va, 0, cmd.size); |
| |
| if (enable) { |
| status = pci_write_config_dword(adapter->pdev, |
| PCICFG_PM_CONTROL_OFFSET, PCICFG_PM_CONTROL_MASK); |
| if (status) { |
| dev_err(&adapter->pdev->dev, |
| "Could not enable Wake-on-lan\n"); |
| dma_free_coherent(&adapter->pdev->dev, cmd.size, cmd.va, |
| cmd.dma); |
| return status; |
| } |
| status = be_cmd_enable_magic_wol(adapter, |
| adapter->netdev->dev_addr, &cmd); |
| pci_enable_wake(adapter->pdev, PCI_D3hot, 1); |
| pci_enable_wake(adapter->pdev, PCI_D3cold, 1); |
| } else { |
| status = be_cmd_enable_magic_wol(adapter, mac, &cmd); |
| pci_enable_wake(adapter->pdev, PCI_D3hot, 0); |
| pci_enable_wake(adapter->pdev, PCI_D3cold, 0); |
| } |
| |
| dma_free_coherent(&adapter->pdev->dev, cmd.size, cmd.va, cmd.dma); |
| return status; |
| } |
| |
| /* |
| * Generate a seed MAC address from the PF MAC Address using jhash. |
| * MAC Address for VFs are assigned incrementally starting from the seed. |
| * These addresses are programmed in the ASIC by the PF and the VF driver |
| * queries for the MAC address during its probe. |
| */ |
| static inline int be_vf_eth_addr_config(struct be_adapter *adapter) |
| { |
| u32 vf = 0; |
| int status = 0; |
| u8 mac[ETH_ALEN]; |
| |
| be_vf_eth_addr_generate(adapter, mac); |
| |
| for (vf = 0; vf < num_vfs; vf++) { |
| status = be_cmd_pmac_add(adapter, mac, |
| adapter->vf_cfg[vf].vf_if_handle, |
| &adapter->vf_cfg[vf].vf_pmac_id, |
| vf + 1); |
| if (status) |
| dev_err(&adapter->pdev->dev, |
| "Mac address add failed for VF %d\n", vf); |
| else |
| memcpy(adapter->vf_cfg[vf].vf_mac_addr, mac, ETH_ALEN); |
| |
| mac[5] += 1; |
| } |
| return status; |
| } |
| |
| static inline void be_vf_eth_addr_rem(struct be_adapter *adapter) |
| { |
| u32 vf; |
| |
| for (vf = 0; vf < num_vfs; vf++) { |
| if (adapter->vf_cfg[vf].vf_pmac_id != BE_INVALID_PMAC_ID) |
| be_cmd_pmac_del(adapter, |
| adapter->vf_cfg[vf].vf_if_handle, |
| adapter->vf_cfg[vf].vf_pmac_id, vf + 1); |
| } |
| } |
| |
| static int be_setup(struct be_adapter *adapter) |
| { |
| struct net_device *netdev = adapter->netdev; |
| u32 cap_flags, en_flags, vf = 0; |
| int status; |
| u8 mac[ETH_ALEN]; |
| |
| cap_flags = en_flags = BE_IF_FLAGS_UNTAGGED | |
| BE_IF_FLAGS_BROADCAST | |
| BE_IF_FLAGS_MULTICAST; |
| |
| if (be_physfn(adapter)) { |
| cap_flags |= BE_IF_FLAGS_MCAST_PROMISCUOUS | |
| BE_IF_FLAGS_PROMISCUOUS | |
| BE_IF_FLAGS_PASS_L3L4_ERRORS; |
| en_flags |= BE_IF_FLAGS_PASS_L3L4_ERRORS; |
| |
| if (adapter->function_caps & BE_FUNCTION_CAPS_RSS) { |
| cap_flags |= BE_IF_FLAGS_RSS; |
| en_flags |= BE_IF_FLAGS_RSS; |
| } |
| } |
| |
| status = be_cmd_if_create(adapter, cap_flags, en_flags, |
| netdev->dev_addr, false/* pmac_invalid */, |
| &adapter->if_handle, &adapter->pmac_id, 0); |
| if (status != 0) |
| goto do_none; |
| |
| if (be_physfn(adapter)) { |
| if (adapter->sriov_enabled) { |
| while (vf < num_vfs) { |
| cap_flags = en_flags = BE_IF_FLAGS_UNTAGGED | |
| BE_IF_FLAGS_BROADCAST; |
| status = be_cmd_if_create(adapter, cap_flags, |
| en_flags, mac, true, |
| &adapter->vf_cfg[vf].vf_if_handle, |
| NULL, vf+1); |
| if (status) { |
| dev_err(&adapter->pdev->dev, |
| "Interface Create failed for VF %d\n", |
| vf); |
| goto if_destroy; |
| } |
| adapter->vf_cfg[vf].vf_pmac_id = |
| BE_INVALID_PMAC_ID; |
| vf++; |
| } |
| } |
| } else { |
| status = be_cmd_mac_addr_query(adapter, mac, |
| MAC_ADDRESS_TYPE_NETWORK, false, adapter->if_handle); |
| if (!status) { |
| memcpy(adapter->netdev->dev_addr, mac, ETH_ALEN); |
| memcpy(adapter->netdev->perm_addr, mac, ETH_ALEN); |
| } |
| } |
| |
| status = be_tx_queues_create(adapter); |
| if (status != 0) |
| goto if_destroy; |
| |
| status = be_rx_queues_create(adapter); |
| if (status != 0) |
| goto tx_qs_destroy; |
| |
| status = be_mcc_queues_create(adapter); |
| if (status != 0) |
| goto rx_qs_destroy; |
| |
| adapter->link_speed = -1; |
| |
| return 0; |
| |
| rx_qs_destroy: |
| be_rx_queues_destroy(adapter); |
| tx_qs_destroy: |
| be_tx_queues_destroy(adapter); |
| if_destroy: |
| if (be_physfn(adapter) && adapter->sriov_enabled) |
| for (vf = 0; vf < num_vfs; vf++) |
| if (adapter->vf_cfg[vf].vf_if_handle) |
| be_cmd_if_destroy(adapter, |
| adapter->vf_cfg[vf].vf_if_handle, |
| vf + 1); |
| be_cmd_if_destroy(adapter, adapter->if_handle, 0); |
| do_none: |
| return status; |
| } |
| |
| static int be_clear(struct be_adapter *adapter) |
| { |
| int vf; |
| |
| if (be_physfn(adapter) && adapter->sriov_enabled) |
| be_vf_eth_addr_rem(adapter); |
| |
| be_mcc_queues_destroy(adapter); |
| be_rx_queues_destroy(adapter); |
| be_tx_queues_destroy(adapter); |
| adapter->eq_next_idx = 0; |
| |
| if (be_physfn(adapter) && adapter->sriov_enabled) |
| for (vf = 0; vf < num_vfs; vf++) |
| if (adapter->vf_cfg[vf].vf_if_handle) |
| be_cmd_if_destroy(adapter, |
| adapter->vf_cfg[vf].vf_if_handle, |
| vf + 1); |
| |
| be_cmd_if_destroy(adapter, adapter->if_handle, 0); |
| |
| /* tell fw we're done with firing cmds */ |
| be_cmd_fw_clean(adapter); |
| return 0; |
| } |
| |
| |
| #define FW_FILE_HDR_SIGN "ServerEngines Corp. " |
| static bool be_flash_redboot(struct be_adapter *adapter, |
| const u8 *p, u32 img_start, int image_size, |
| int hdr_size) |
| { |
| u32 crc_offset; |
| u8 flashed_crc[4]; |
| int status; |
| |
| crc_offset = hdr_size + img_start + image_size - 4; |
| |
| p += crc_offset; |
| |
| status = be_cmd_get_flash_crc(adapter, flashed_crc, |
| (image_size - 4)); |
| if (status) { |
| dev_err(&adapter->pdev->dev, |
| "could not get crc from flash, not flashing redboot\n"); |
| return false; |
| } |
| |
| /*update redboot only if crc does not match*/ |
| if (!memcmp(flashed_crc, p, 4)) |
| return false; |
| else |
| return true; |
| } |
| |
| static int be_flash_data(struct be_adapter *adapter, |
| const struct firmware *fw, |
| struct be_dma_mem *flash_cmd, int num_of_images) |
| |
| { |
| int status = 0, i, filehdr_size = 0; |
| u32 total_bytes = 0, flash_op; |
| int num_bytes; |
| const u8 *p = fw->data; |
| struct be_cmd_write_flashrom *req = flash_cmd->va; |
| const struct flash_comp *pflashcomp; |
| int num_comp; |
| |
| static const struct flash_comp gen3_flash_types[9] = { |
| { FLASH_iSCSI_PRIMARY_IMAGE_START_g3, IMG_TYPE_ISCSI_ACTIVE, |
| FLASH_IMAGE_MAX_SIZE_g3}, |
| { FLASH_REDBOOT_START_g3, IMG_TYPE_REDBOOT, |
| FLASH_REDBOOT_IMAGE_MAX_SIZE_g3}, |
| { FLASH_iSCSI_BIOS_START_g3, IMG_TYPE_BIOS, |
| FLASH_BIOS_IMAGE_MAX_SIZE_g3}, |
| { FLASH_PXE_BIOS_START_g3, IMG_TYPE_PXE_BIOS, |
| FLASH_BIOS_IMAGE_MAX_SIZE_g3}, |
| { FLASH_FCoE_BIOS_START_g3, IMG_TYPE_FCOE_BIOS, |
| FLASH_BIOS_IMAGE_MAX_SIZE_g3}, |
| { FLASH_iSCSI_BACKUP_IMAGE_START_g3, IMG_TYPE_ISCSI_BACKUP, |
| FLASH_IMAGE_MAX_SIZE_g3}, |
| { FLASH_FCoE_PRIMARY_IMAGE_START_g3, IMG_TYPE_FCOE_FW_ACTIVE, |
| FLASH_IMAGE_MAX_SIZE_g3}, |
| { FLASH_FCoE_BACKUP_IMAGE_START_g3, IMG_TYPE_FCOE_FW_BACKUP, |
| FLASH_IMAGE_MAX_SIZE_g3}, |
| { FLASH_NCSI_START_g3, IMG_TYPE_NCSI_FW, |
| FLASH_NCSI_IMAGE_MAX_SIZE_g3} |
| }; |
| static const struct flash_comp gen2_flash_types[8] = { |
| { FLASH_iSCSI_PRIMARY_IMAGE_START_g2, IMG_TYPE_ISCSI_ACTIVE, |
| FLASH_IMAGE_MAX_SIZE_g2}, |
| { FLASH_REDBOOT_START_g2, IMG_TYPE_REDBOOT, |
| FLASH_REDBOOT_IMAGE_MAX_SIZE_g2}, |
| { FLASH_iSCSI_BIOS_START_g2, IMG_TYPE_BIOS, |
| FLASH_BIOS_IMAGE_MAX_SIZE_g2}, |
| { FLASH_PXE_BIOS_START_g2, IMG_TYPE_PXE_BIOS, |
| FLASH_BIOS_IMAGE_MAX_SIZE_g2}, |
| { FLASH_FCoE_BIOS_START_g2, IMG_TYPE_FCOE_BIOS, |
| FLASH_BIOS_IMAGE_MAX_SIZE_g2}, |
| { FLASH_iSCSI_BACKUP_IMAGE_START_g2, IMG_TYPE_ISCSI_BACKUP, |
| FLASH_IMAGE_MAX_SIZE_g2}, |
| { FLASH_FCoE_PRIMARY_IMAGE_START_g2, IMG_TYPE_FCOE_FW_ACTIVE, |
| FLASH_IMAGE_MAX_SIZE_g2}, |
| { FLASH_FCoE_BACKUP_IMAGE_START_g2, IMG_TYPE_FCOE_FW_BACKUP, |
| FLASH_IMAGE_MAX_SIZE_g2} |
| }; |
| |
| if (adapter->generation == BE_GEN3) { |
| pflashcomp = gen3_flash_types; |
| filehdr_size = sizeof(struct flash_file_hdr_g3); |
| num_comp = ARRAY_SIZE(gen3_flash_types); |
| } else { |
| pflashcomp = gen2_flash_types; |
| filehdr_size = sizeof(struct flash_file_hdr_g2); |
| num_comp = ARRAY_SIZE(gen2_flash_types); |
| } |
| for (i = 0; i < num_comp; i++) { |
| if ((pflashcomp[i].optype == IMG_TYPE_NCSI_FW) && |
| memcmp(adapter->fw_ver, "3.102.148.0", 11) < 0) |
| continue; |
| if ((pflashcomp[i].optype == IMG_TYPE_REDBOOT) && |
| (!be_flash_redboot(adapter, fw->data, |
| pflashcomp[i].offset, pflashcomp[i].size, filehdr_size + |
| (num_of_images * sizeof(struct image_hdr))))) |
| continue; |
| p = fw->data; |
| p += filehdr_size + pflashcomp[i].offset |
| + (num_of_images * sizeof(struct image_hdr)); |
| if (p + pflashcomp[i].size > fw->data + fw->size) |
| return -1; |
| total_bytes = pflashcomp[i].size; |
| while (total_bytes) { |
| if (total_bytes > 32*1024) |
| num_bytes = 32*1024; |
| else |
| num_bytes = total_bytes; |
| total_bytes -= num_bytes; |
| |
| if (!total_bytes) |
| flash_op = FLASHROM_OPER_FLASH; |
| else |
| flash_op = FLASHROM_OPER_SAVE; |
| memcpy(req->params.data_buf, p, num_bytes); |
| p += num_bytes; |
| status = be_cmd_write_flashrom(adapter, flash_cmd, |
| pflashcomp[i].optype, flash_op, num_bytes); |
| if (status) { |
| dev_err(&adapter->pdev->dev, |
| "cmd to write to flash rom failed.\n"); |
| return -1; |
| } |
| yield(); |
| } |
| } |
| return 0; |
| } |
| |
| static int get_ufigen_type(struct flash_file_hdr_g2 *fhdr) |
| { |
| if (fhdr == NULL) |
| return 0; |
| if (fhdr->build[0] == '3') |
| return BE_GEN3; |
| else if (fhdr->build[0] == '2') |
| return BE_GEN2; |
| else |
| return 0; |
| } |
| |
| int be_load_fw(struct be_adapter *adapter, u8 *func) |
| { |
| char fw_file[ETHTOOL_FLASH_MAX_FILENAME]; |
| const struct firmware *fw; |
| struct flash_file_hdr_g2 *fhdr; |
| struct flash_file_hdr_g3 *fhdr3; |
| struct image_hdr *img_hdr_ptr = NULL; |
| struct be_dma_mem flash_cmd; |
| int status, i = 0, num_imgs = 0; |
| const u8 *p; |
| |
| if (!netif_running(adapter->netdev)) { |
| dev_err(&adapter->pdev->dev, |
| "Firmware load not allowed (interface is down)\n"); |
| return -EPERM; |
| } |
| |
| strcpy(fw_file, func); |
| |
| status = request_firmware(&fw, fw_file, &adapter->pdev->dev); |
| if (status) |
| goto fw_exit; |
| |
| p = fw->data; |
| fhdr = (struct flash_file_hdr_g2 *) p; |
| dev_info(&adapter->pdev->dev, "Flashing firmware file %s\n", fw_file); |
| |
| flash_cmd.size = sizeof(struct be_cmd_write_flashrom) + 32*1024; |
| flash_cmd.va = dma_alloc_coherent(&adapter->pdev->dev, flash_cmd.size, |
| &flash_cmd.dma, GFP_KERNEL); |
| if (!flash_cmd.va) { |
| status = -ENOMEM; |
| dev_err(&adapter->pdev->dev, |
| "Memory allocation failure while flashing\n"); |
| goto fw_exit; |
| } |
| |
| if ((adapter->generation == BE_GEN3) && |
| (get_ufigen_type(fhdr) == BE_GEN3)) { |
| fhdr3 = (struct flash_file_hdr_g3 *) fw->data; |
| num_imgs = le32_to_cpu(fhdr3->num_imgs); |
| for (i = 0; i < num_imgs; i++) { |
| img_hdr_ptr = (struct image_hdr *) (fw->data + |
| (sizeof(struct flash_file_hdr_g3) + |
| i * sizeof(struct image_hdr))); |
| if (le32_to_cpu(img_hdr_ptr->imageid) == 1) |
| status = be_flash_data(adapter, fw, &flash_cmd, |
| num_imgs); |
| } |
| } else if ((adapter->generation == BE_GEN2) && |
| (get_ufigen_type(fhdr) == BE_GEN2)) { |
| status = be_flash_data(adapter, fw, &flash_cmd, 0); |
| } else { |
| dev_err(&adapter->pdev->dev, |
| "UFI and Interface are not compatible for flashing\n"); |
| status = -1; |
| } |
| |
| dma_free_coherent(&adapter->pdev->dev, flash_cmd.size, flash_cmd.va, |
| flash_cmd.dma); |
| if (status) { |
| dev_err(&adapter->pdev->dev, "Firmware load error\n"); |
| goto fw_exit; |
| } |
| |
| dev_info(&adapter->pdev->dev, "Firmware flashed successfully\n"); |
| |
| fw_exit: |
| release_firmware(fw); |
| return status; |
| } |
| |
| static struct net_device_ops be_netdev_ops = { |
| .ndo_open = be_open, |
| .ndo_stop = be_close, |
| .ndo_start_xmit = be_xmit, |
| .ndo_set_rx_mode = be_set_multicast_list, |
| .ndo_set_mac_address = be_mac_addr_set, |
| .ndo_change_mtu = be_change_mtu, |
| .ndo_validate_addr = eth_validate_addr, |
| .ndo_vlan_rx_register = be_vlan_register, |
| .ndo_vlan_rx_add_vid = be_vlan_add_vid, |
| .ndo_vlan_rx_kill_vid = be_vlan_rem_vid, |
| .ndo_set_vf_mac = be_set_vf_mac, |
| .ndo_set_vf_vlan = be_set_vf_vlan, |
| .ndo_set_vf_tx_rate = be_set_vf_tx_rate, |
| .ndo_get_vf_config = be_get_vf_config |
| }; |
| |
| static void be_netdev_init(struct net_device *netdev) |
| { |
| struct be_adapter *adapter = netdev_priv(netdev); |
| struct be_rx_obj *rxo; |
| int i; |
| |
| netdev->features |= NETIF_F_SG | NETIF_F_HW_VLAN_RX | NETIF_F_TSO | |
| NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_FILTER | |
| NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | |
| NETIF_F_GRO | NETIF_F_TSO6; |
| |
| if (be_multi_rxq(adapter)) |
| netdev->features |= NETIF_F_RXHASH; |
| |
| netdev->vlan_features |= NETIF_F_SG | NETIF_F_TSO | |
| NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM; |
| |
| if (lancer_chip(adapter)) |
| netdev->vlan_features |= NETIF_F_TSO6; |
| |
| netdev->flags |= IFF_MULTICAST; |
| |
| adapter->rx_csum = true; |
| |
| /* Default settings for Rx and Tx flow control */ |
| adapter->rx_fc = true; |
| adapter->tx_fc = true; |
| |
| netif_set_gso_max_size(netdev, 65535); |
| |
| BE_SET_NETDEV_OPS(netdev, &be_netdev_ops); |
| |
| SET_ETHTOOL_OPS(netdev, &be_ethtool_ops); |
| |
| for_all_rx_queues(adapter, rxo, i) |
| netif_napi_add(netdev, &rxo->rx_eq.napi, be_poll_rx, |
| BE_NAPI_WEIGHT); |
| |
| netif_napi_add(netdev, &adapter->tx_eq.napi, be_poll_tx_mcc, |
| BE_NAPI_WEIGHT); |
| } |
| |
| static void be_unmap_pci_bars(struct be_adapter *adapter) |
| { |
| if (adapter->csr) |
| iounmap(adapter->csr); |
| if (adapter->db) |
| iounmap(adapter->db); |
| if (adapter->pcicfg && be_physfn(adapter)) |
| iounmap(adapter->pcicfg); |
| } |
| |
| static int be_map_pci_bars(struct be_adapter *adapter) |
| { |
| u8 __iomem *addr; |
| int pcicfg_reg, db_reg; |
| |
| if (lancer_chip(adapter)) { |
| addr = ioremap_nocache(pci_resource_start(adapter->pdev, 0), |
| pci_resource_len(adapter->pdev, 0)); |
| if (addr == NULL) |
| return -ENOMEM; |
| adapter->db = addr; |
| return 0; |
| } |
| |
| if (be_physfn(adapter)) { |
| addr = ioremap_nocache(pci_resource_start(adapter->pdev, 2), |
| pci_resource_len(adapter->pdev, 2)); |
| if (addr == NULL) |
| return -ENOMEM; |
| adapter->csr = addr; |
| } |
| |
| if (adapter->generation == BE_GEN2) { |
| pcicfg_reg = 1; |
| db_reg = 4; |
| } else { |
| pcicfg_reg = 0; |
| if (be_physfn(adapter)) |
| db_reg = 4; |
| else |
| db_reg = 0; |
| } |
| addr = ioremap_nocache(pci_resource_start(adapter->pdev, db_reg), |
| pci_resource_len(adapter->pdev, db_reg)); |
| if (addr == NULL) |
| goto pci_map_err; |
| adapter->db = addr; |
| |
| if (be_physfn(adapter)) { |
| addr = ioremap_nocache( |
| pci_resource_start(adapter->pdev, pcicfg_reg), |
| pci_resource_len(adapter->pdev, pcicfg_reg)); |
| if (addr == NULL) |
| goto pci_map_err; |
| adapter->pcicfg = addr; |
| } else |
| adapter->pcicfg = adapter->db + SRIOV_VF_PCICFG_OFFSET; |
| |
| return 0; |
| pci_map_err: |
| be_unmap_pci_bars(adapter); |
| return -ENOMEM; |
| } |
| |
| |
| static void be_ctrl_cleanup(struct be_adapter *adapter) |
| { |
| struct be_dma_mem *mem = &adapter->mbox_mem_alloced; |
| |
| be_unmap_pci_bars(adapter); |
| |
| if (mem->va) |
| dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va, |
| mem->dma); |
| |
| mem = &adapter->mc_cmd_mem; |
| if (mem->va) |
| dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va, |
| mem->dma); |
| } |
| |
| static int be_ctrl_init(struct be_adapter *adapter) |
| { |
| struct be_dma_mem *mbox_mem_alloc = &adapter->mbox_mem_alloced; |
| struct be_dma_mem *mbox_mem_align = &adapter->mbox_mem; |
| struct be_dma_mem *mc_cmd_mem = &adapter->mc_cmd_mem; |
| int status; |
| |
| status = be_map_pci_bars(adapter); |
| if (status) |
| goto done; |
| |
| mbox_mem_alloc->size = sizeof(struct be_mcc_mailbox) + 16; |
| mbox_mem_alloc->va = dma_alloc_coherent(&adapter->pdev->dev, |
| mbox_mem_alloc->size, |
| &mbox_mem_alloc->dma, |
| GFP_KERNEL); |
| if (!mbox_mem_alloc->va) { |
| status = -ENOMEM; |
| goto unmap_pci_bars; |
| } |
| |
| mbox_mem_align->size = sizeof(struct be_mcc_mailbox); |
| mbox_mem_align->va = PTR_ALIGN(mbox_mem_alloc->va, 16); |
| mbox_mem_align->dma = PTR_ALIGN(mbox_mem_alloc->dma, 16); |
| memset(mbox_mem_align->va, 0, sizeof(struct be_mcc_mailbox)); |
| |
| mc_cmd_mem->size = sizeof(struct be_cmd_req_mcast_mac_config); |
| mc_cmd_mem->va = dma_alloc_coherent(&adapter->pdev->dev, |
| mc_cmd_mem->size, &mc_cmd_mem->dma, |
| GFP_KERNEL); |
| if (mc_cmd_mem->va == NULL) { |
| status = -ENOMEM; |
| goto free_mbox; |
| } |
| memset(mc_cmd_mem->va, 0, mc_cmd_mem->size); |
| |
| mutex_init(&adapter->mbox_lock); |
| spin_lock_init(&adapter->mcc_lock); |
| spin_lock_init(&adapter->mcc_cq_lock); |
| |
| init_completion(&adapter->flash_compl); |
| pci_save_state(adapter->pdev); |
| return 0; |
| |
| free_mbox: |
| dma_free_coherent(&adapter->pdev->dev, mbox_mem_alloc->size, |
| mbox_mem_alloc->va, mbox_mem_alloc->dma); |
| |
| unmap_pci_bars: |
| be_unmap_pci_bars(adapter); |
| |
| done: |
| return status; |
| } |
| |
| static void be_stats_cleanup(struct be_adapter *adapter) |
| { |
| struct be_dma_mem *cmd = &adapter->stats_cmd; |
| |
| if (cmd->va) |
| dma_free_coherent(&adapter->pdev->dev, cmd->size, |
| cmd->va, cmd->dma); |
| } |
| |
| static int be_stats_init(struct be_adapter *adapter) |
| { |
| struct be_dma_mem *cmd = &adapter->stats_cmd; |
| |
| cmd->size = sizeof(struct be_cmd_req_get_stats); |
| cmd->va = dma_alloc_coherent(&adapter->pdev->dev, cmd->size, &cmd->dma, |
| GFP_KERNEL); |
| if (cmd->va == NULL) |
| return -1; |
| memset(cmd->va, 0, cmd->size); |
| return 0; |
| } |
| |
| static void __devexit be_remove(struct pci_dev *pdev) |
| { |
| struct be_adapter *adapter = pci_get_drvdata(pdev); |
| |
| if (!adapter) |
| return; |
| |
| cancel_delayed_work_sync(&adapter->work); |
| |
| unregister_netdev(adapter->netdev); |
| |
| be_clear(adapter); |
| |
| be_stats_cleanup(adapter); |
| |
| be_ctrl_cleanup(adapter); |
| |
| kfree(adapter->vf_cfg); |
| be_sriov_disable(adapter); |
| |
| be_msix_disable(adapter); |
| |
| pci_set_drvdata(pdev, NULL); |
| pci_release_regions(pdev); |
| pci_disable_device(pdev); |
| |
| free_netdev(adapter->netdev); |
| } |
| |
| static int be_get_config(struct be_adapter *adapter) |
| { |
| int status; |
| u8 mac[ETH_ALEN]; |
| |
| status = be_cmd_get_fw_ver(adapter, adapter->fw_ver); |
| if (status) |
| return status; |
| |
| status = be_cmd_query_fw_cfg(adapter, &adapter->port_num, |
| &adapter->function_mode, &adapter->function_caps); |
| if (status) |
| return status; |
| |
| memset(mac, 0, ETH_ALEN); |
| |
| if (be_physfn(adapter)) { |
| status = be_cmd_mac_addr_query(adapter, mac, |
| MAC_ADDRESS_TYPE_NETWORK, true /*permanent */, 0); |
| |
| if (status) |
| return status; |
| |
| if (!is_valid_ether_addr(mac)) |
| return -EADDRNOTAVAIL; |
| |
| memcpy(adapter->netdev->dev_addr, mac, ETH_ALEN); |
| memcpy(adapter->netdev->perm_addr, mac, ETH_ALEN); |
| } |
| |
| if (adapter->function_mode & 0x400) |
| adapter->max_vlans = BE_NUM_VLANS_SUPPORTED/4; |
| else |
| adapter->max_vlans = BE_NUM_VLANS_SUPPORTED; |
| |
| status = be_cmd_get_cntl_attributes(adapter); |
| if (status) |
| return status; |
| |
| be_cmd_check_native_mode(adapter); |
| return 0; |
| } |
| |
| static int be_dev_family_check(struct be_adapter *adapter) |
| { |
| struct pci_dev *pdev = adapter->pdev; |
| u32 sli_intf = 0, if_type; |
| |
| switch (pdev->device) { |
| case BE_DEVICE_ID1: |
| case OC_DEVICE_ID1: |
| adapter->generation = BE_GEN2; |
| break; |
| case BE_DEVICE_ID2: |
| case OC_DEVICE_ID2: |
| adapter->generation = BE_GEN3; |
| break; |
| case OC_DEVICE_ID3: |
| pci_read_config_dword(pdev, SLI_INTF_REG_OFFSET, &sli_intf); |
| if_type = (sli_intf & SLI_INTF_IF_TYPE_MASK) >> |
| SLI_INTF_IF_TYPE_SHIFT; |
| |
| if (((sli_intf & SLI_INTF_VALID_MASK) != SLI_INTF_VALID) || |
| if_type != 0x02) { |
| dev_err(&pdev->dev, "SLI_INTF reg val is not valid\n"); |
| return -EINVAL; |
| } |
| if (num_vfs > 0) { |
| dev_err(&pdev->dev, "VFs not supported\n"); |
| return -EINVAL; |
| } |
| adapter->sli_family = ((sli_intf & SLI_INTF_FAMILY_MASK) >> |
| SLI_INTF_FAMILY_SHIFT); |
| adapter->generation = BE_GEN3; |
| break; |
| default: |
| adapter->generation = 0; |
| } |
| return 0; |
| } |
| |
| static int lancer_wait_ready(struct be_adapter *adapter) |
| { |
| #define SLIPORT_READY_TIMEOUT 500 |
| u32 sliport_status; |
| int status = 0, i; |
| |
| for (i = 0; i < SLIPORT_READY_TIMEOUT; i++) { |
| sliport_status = ioread32(adapter->db + SLIPORT_STATUS_OFFSET); |
| if (sliport_status & SLIPORT_STATUS_RDY_MASK) |
| break; |
| |
| msleep(20); |
| } |
| |
| if (i == SLIPORT_READY_TIMEOUT) |
| status = -1; |
| |
| return status; |
| } |
| |
| static int lancer_test_and_set_rdy_state(struct be_adapter *adapter) |
| { |
| int status; |
| u32 sliport_status, err, reset_needed; |
| status = lancer_wait_ready(adapter); |
| if (!status) { |
| sliport_status = ioread32(adapter->db + SLIPORT_STATUS_OFFSET); |
| err = sliport_status & SLIPORT_STATUS_ERR_MASK; |
| reset_needed = sliport_status & SLIPORT_STATUS_RN_MASK; |
| if (err && reset_needed) { |
| iowrite32(SLI_PORT_CONTROL_IP_MASK, |
| adapter->db + SLIPORT_CONTROL_OFFSET); |
| |
| /* check adapter has corrected the error */ |
| status = lancer_wait_ready(adapter); |
| sliport_status = ioread32(adapter->db + |
| SLIPORT_STATUS_OFFSET); |
| sliport_status &= (SLIPORT_STATUS_ERR_MASK | |
| SLIPORT_STATUS_RN_MASK); |
| if (status || sliport_status) |
| status = -1; |
| } else if (err || reset_needed) { |
| status = -1; |
| } |
| } |
| return status; |
| } |
| |
| static int __devinit be_probe(struct pci_dev *pdev, |
| const struct pci_device_id *pdev_id) |
| { |
| int status = 0; |
| struct be_adapter *adapter; |
| struct net_device *netdev; |
| |
| status = pci_enable_device(pdev); |
| if (status) |
| goto do_none; |
| |
| status = pci_request_regions(pdev, DRV_NAME); |
| if (status) |
| goto disable_dev; |
| pci_set_master(pdev); |
| |
| netdev = alloc_etherdev(sizeof(struct be_adapter)); |
| if (netdev == NULL) { |
| status = -ENOMEM; |
| goto rel_reg; |
| } |
| adapter = netdev_priv(netdev); |
| adapter->pdev = pdev; |
| pci_set_drvdata(pdev, adapter); |
| |
| status = be_dev_family_check(adapter); |
| if (status) |
| goto free_netdev; |
| |
| adapter->netdev = netdev; |
| SET_NETDEV_DEV(netdev, &pdev->dev); |
| |
| status = dma_set_mask(&pdev->dev, DMA_BIT_MASK(64)); |
| if (!status) { |
| netdev->features |= NETIF_F_HIGHDMA; |
| } else { |
| status = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32)); |
| if (status) { |
| dev_err(&pdev->dev, "Could not set PCI DMA Mask\n"); |
| goto free_netdev; |
| } |
| } |
| |
| be_sriov_enable(adapter); |
| if (adapter->sriov_enabled) { |
| adapter->vf_cfg = kcalloc(num_vfs, |
| sizeof(struct be_vf_cfg), GFP_KERNEL); |
| |
| if (!adapter->vf_cfg) |
| goto free_netdev; |
| } |
| |
| status = be_ctrl_init(adapter); |
| if (status) |
| goto free_vf_cfg; |
| |
| if (lancer_chip(adapter)) { |
| status = lancer_test_and_set_rdy_state(adapter); |
| if (status) { |
| dev_err(&pdev->dev, "Adapter in non recoverable error\n"); |
| goto ctrl_clean; |
| } |
| } |
| |
| /* sync up with fw's ready state */ |
| if (be_physfn(adapter)) { |
| status = be_cmd_POST(adapter); |
| if (status) |
| goto ctrl_clean; |
| } |
| |
| /* tell fw we're ready to fire cmds */ |
| status = be_cmd_fw_init(adapter); |
| if (status) |
| goto ctrl_clean; |
| |
| status = be_cmd_reset_function(adapter); |
| if (status) |
| goto ctrl_clean; |
| |
| status = be_stats_init(adapter); |
| if (status) |
| goto ctrl_clean; |
| |
| status = be_get_config(adapter); |
| if (status) |
| goto stats_clean; |
| |
| be_msix_enable(adapter); |
| |
| INIT_DELAYED_WORK(&adapter->work, be_worker); |
| |
| status = be_setup(adapter); |
| if (status) |
| goto msix_disable; |
| |
| be_netdev_init(netdev); |
| status = register_netdev(netdev); |
| if (status != 0) |
| goto unsetup; |
| netif_carrier_off(netdev); |
| |
| if (be_physfn(adapter) && adapter->sriov_enabled) { |
| status = be_vf_eth_addr_config(adapter); |
| if (status) |
| goto unreg_netdev; |
| } |
| |
| dev_info(&pdev->dev, "%s port %d\n", nic_name(pdev), adapter->port_num); |
| schedule_delayed_work(&adapter->work, msecs_to_jiffies(100)); |
| return 0; |
| |
| unreg_netdev: |
| unregister_netdev(netdev); |
| unsetup: |
| be_clear(adapter); |
| msix_disable: |
| be_msix_disable(adapter); |
| stats_clean: |
| be_stats_cleanup(adapter); |
| ctrl_clean: |
| be_ctrl_cleanup(adapter); |
| free_vf_cfg: |
| kfree(adapter->vf_cfg); |
| free_netdev: |
| be_sriov_disable(adapter); |
| free_netdev(netdev); |
| pci_set_drvdata(pdev, NULL); |
| rel_reg: |
| pci_release_regions(pdev); |
| disable_dev: |
| pci_disable_device(pdev); |
| do_none: |
| dev_err(&pdev->dev, "%s initialization failed\n", nic_name(pdev)); |
| return status; |
| } |
| |
| static int be_suspend(struct pci_dev *pdev, pm_message_t state) |
| { |
| struct be_adapter *adapter = pci_get_drvdata(pdev); |
| struct net_device *netdev = adapter->netdev; |
| |
| cancel_delayed_work_sync(&adapter->work); |
| if (adapter->wol) |
| be_setup_wol(adapter, true); |
| |
| netif_device_detach(netdev); |
| if (netif_running(netdev)) { |
| rtnl_lock(); |
| be_close(netdev); |
| rtnl_unlock(); |
| } |
| be_cmd_get_flow_control(adapter, &adapter->tx_fc, &adapter->rx_fc); |
| be_clear(adapter); |
| |
| be_msix_disable(adapter); |
| pci_save_state(pdev); |
| pci_disable_device(pdev); |
| pci_set_power_state(pdev, pci_choose_state(pdev, state)); |
| return 0; |
| } |
| |
| static int be_resume(struct pci_dev *pdev) |
| { |
| int status = 0; |
| struct be_adapter *adapter = pci_get_drvdata(pdev); |
| struct net_device *netdev = adapter->netdev; |
| |
| netif_device_detach(netdev); |
| |
| status = pci_enable_device(pdev); |
| if (status) |
| return status; |
| |
| pci_set_power_state(pdev, 0); |
| pci_restore_state(pdev); |
| |
| be_msix_enable(adapter); |
| /* tell fw we're ready to fire cmds */ |
| status = be_cmd_fw_init(adapter); |
| if (status) |
| return status; |
| |
| be_setup(adapter); |
| if (netif_running(netdev)) { |
| rtnl_lock(); |
| be_open(netdev); |
| rtnl_unlock(); |
| } |
| netif_device_attach(netdev); |
| |
| if (adapter->wol) |
| be_setup_wol(adapter, false); |
| |
| schedule_delayed_work(&adapter->work, msecs_to_jiffies(100)); |
| return 0; |
| } |
| |
| /* |
| * An FLR will stop BE from DMAing any data. |
| */ |
| static void be_shutdown(struct pci_dev *pdev) |
| { |
| struct be_adapter *adapter = pci_get_drvdata(pdev); |
| |
| if (!adapter) |
| return; |
| |
| cancel_delayed_work_sync(&adapter->work); |
| |
| netif_device_detach(adapter->netdev); |
| |
| if (adapter->wol) |
| be_setup_wol(adapter, true); |
| |
| be_cmd_reset_function(adapter); |
| |
| pci_disable_device(pdev); |
| } |
| |
| static pci_ers_result_t be_eeh_err_detected(struct pci_dev *pdev, |
| pci_channel_state_t state) |
| { |
| struct be_adapter *adapter = pci_get_drvdata(pdev); |
| struct net_device *netdev = adapter->netdev; |
| |
| dev_err(&adapter->pdev->dev, "EEH error detected\n"); |
| |
| adapter->eeh_err = true; |
| |
| netif_device_detach(netdev); |
| |
| if (netif_running(netdev)) { |
| rtnl_lock(); |
| be_close(netdev); |
| rtnl_unlock(); |
| } |
| be_clear(adapter); |
| |
| if (state == pci_channel_io_perm_failure) |
| return PCI_ERS_RESULT_DISCONNECT; |
| |
| pci_disable_device(pdev); |
| |
| return PCI_ERS_RESULT_NEED_RESET; |
| } |
| |
| static pci_ers_result_t be_eeh_reset(struct pci_dev *pdev) |
| { |
| struct be_adapter *adapter = pci_get_drvdata(pdev); |
| int status; |
| |
| dev_info(&adapter->pdev->dev, "EEH reset\n"); |
| adapter->eeh_err = false; |
| |
| status = pci_enable_device(pdev); |
| if (status) |
| return PCI_ERS_RESULT_DISCONNECT; |
| |
| pci_set_master(pdev); |
| pci_set_power_state(pdev, 0); |
| pci_restore_state(pdev); |
| |
| /* Check if card is ok and fw is ready */ |
| status = be_cmd_POST(adapter); |
| if (status) |
| return PCI_ERS_RESULT_DISCONNECT; |
| |
| return PCI_ERS_RESULT_RECOVERED; |
| } |
| |
| static void be_eeh_resume(struct pci_dev *pdev) |
| { |
| int status = 0; |
| struct be_adapter *adapter = pci_get_drvdata(pdev); |
| struct net_device *netdev = adapter->netdev; |
| |
| dev_info(&adapter->pdev->dev, "EEH resume\n"); |
| |
| pci_save_state(pdev); |
| |
| /* tell fw we're ready to fire cmds */ |
| status = be_cmd_fw_init(adapter); |
| if (status) |
| goto err; |
| |
| status = be_setup(adapter); |
| if (status) |
| goto err; |
| |
| if (netif_running(netdev)) { |
| status = be_open(netdev); |
| if (status) |
| goto err; |
| } |
| netif_device_attach(netdev); |
| return; |
| err: |
| dev_err(&adapter->pdev->dev, "EEH resume failed\n"); |
| } |
| |
| static struct pci_error_handlers be_eeh_handlers = { |
| .error_detected = be_eeh_err_detected, |
| .slot_reset = be_eeh_reset, |
| .resume = be_eeh_resume, |
| }; |
| |
| static struct pci_driver be_driver = { |
| .name = DRV_NAME, |
| .id_table = be_dev_ids, |
| .probe = be_probe, |
| .remove = be_remove, |
| .suspend = be_suspend, |
| .resume = be_resume, |
| .shutdown = be_shutdown, |
| .err_handler = &be_eeh_handlers |
| }; |
| |
| static int __init be_init_module(void) |
| { |
| if (rx_frag_size != 8192 && rx_frag_size != 4096 && |
| rx_frag_size != 2048) { |
| printk(KERN_WARNING DRV_NAME |
| " : Module param rx_frag_size must be 2048/4096/8192." |
| " Using 2048\n"); |
| rx_frag_size = 2048; |
| } |
| |
| return pci_register_driver(&be_driver); |
| } |
| module_init(be_init_module); |
| |
| static void __exit be_exit_module(void) |
| { |
| pci_unregister_driver(&be_driver); |
| } |
| module_exit(be_exit_module); |