| /* |
| * Copyright (C) 2005 - 2010 ServerEngines |
| * 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@serverengines.com |
| * |
| * ServerEngines |
| * 209 N. Fair Oaks Ave |
| * Sunnyvale, CA 94085 |
| */ |
| |
| #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 unsigned int rx_frag_size = 2048; |
| static unsigned int num_vfs; |
| module_param(rx_frag_size, uint, 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 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) }, |
| { 0 } |
| }; |
| MODULE_DEVICE_TABLE(pci, be_dev_ids); |
| |
| 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) |
| pci_free_consistent(adapter->pdev, 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 = pci_alloc_consistent(adapter->pdev, mem->size, &mem->dma); |
| 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; |
| 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; |
| 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; |
| |
| 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; |
| |
| 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); |
| if (status) |
| return status; |
| |
| status = be_cmd_pmac_add(adapter, (u8 *)addr->sa_data, |
| adapter->if_handle, &adapter->pmac_id); |
| 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; |
| |
| dev_stats->rx_packets = drvr_stats(adapter)->be_rx_pkts; |
| dev_stats->tx_packets = drvr_stats(adapter)->be_tx_pkts; |
| dev_stats->rx_bytes = drvr_stats(adapter)->be_rx_bytes; |
| dev_stats->tx_bytes = drvr_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; |
| |
| /* no space in linux buffers: best possible approximation */ |
| dev_stats->rx_dropped = |
| erx_stats->rx_drops_no_fragments[adapter->rx_obj.q.id]; |
| |
| /* 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; |
| |
| /* receive ring buffer overflow */ |
| dev_stats->rx_over_errors = 0; |
| |
| 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; |
| /* receiver missed packetd */ |
| dev_stats->rx_missed_errors = 0; |
| |
| /* packet transmit problems */ |
| dev_stats->tx_errors = 0; |
| |
| /* no space available in linux */ |
| dev_stats->tx_dropped = 0; |
| |
| dev_stats->multicast = port_stats->rx_multicast_frames; |
| dev_stats->collisions = 0; |
| |
| /* detailed tx_errors */ |
| dev_stats->tx_aborted_errors = 0; |
| dev_stats->tx_carrier_errors = 0; |
| dev_stats->tx_fifo_errors = 0; |
| dev_stats->tx_heartbeat_errors = 0; |
| dev_stats->tx_window_errors = 0; |
| } |
| |
| 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_start_queue(netdev); |
| netif_carrier_on(netdev); |
| printk(KERN_INFO "%s: Link up\n", netdev->name); |
| } else { |
| netif_stop_queue(netdev); |
| 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_eq_obj *rx_eq = &adapter->rx_eq; |
| struct be_drvr_stats *stats = &adapter->stats.drvr_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->be_rx_fps = (stats->be_rx_frags - stats->be_prev_rx_frags) / |
| ((now - stats->rx_fps_jiffies) / HZ); |
| |
| stats->rx_fps_jiffies = now; |
| stats->be_prev_rx_frags = stats->be_rx_frags; |
| eqd = stats->be_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 struct net_device_stats *be_get_stats(struct net_device *dev) |
| { |
| return &dev->stats; |
| } |
| |
| 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_drvr_stats *stats = drvr_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_drvr_stats *stats = drvr_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 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 (cnt & 1) { |
| /* add a dummy to make it an even num */ |
| cnt++; |
| *dummy = true; |
| } else |
| *dummy = false; |
| 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_eth_hdr_wrb *hdr, struct sk_buff *skb, |
| bool vlan, u32 wrb_cnt, u32 len) |
| { |
| memset(hdr, 0, sizeof(*hdr)); |
| |
| AMAP_SET_BITS(struct amap_eth_hdr_wrb, crc, hdr, 1); |
| |
| if (skb_shinfo(skb)->gso_segs > 1 && skb_shinfo(skb)->gso_size) { |
| 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); |
| } 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 (vlan && vlan_tx_tag_present(skb)) { |
| AMAP_SET_BITS(struct amap_eth_hdr_wrb, vlan, hdr, 1); |
| AMAP_SET_BITS(struct amap_eth_hdr_wrb, vlan_tag, |
| hdr, vlan_tx_tag_get(skb)); |
| } |
| |
| 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 pci_dev *pdev, 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) |
| pci_unmap_single(pdev, dma, wrb->frag_len, |
| PCI_DMA_TODEVICE); |
| else |
| pci_unmap_page(pdev, dma, wrb->frag_len, |
| PCI_DMA_TODEVICE); |
| } |
| } |
| |
| 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 pci_dev *pdev = adapter->pdev; |
| 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 = pci_map_single(pdev, skb->data, len, |
| PCI_DMA_TODEVICE); |
| if (pci_dma_mapping_error(pdev, 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 = pci_map_page(pdev, frag->page, |
| frag->page_offset, |
| frag->size, PCI_DMA_TODEVICE); |
| if (pci_dma_mapping_error(pdev, 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(hdr, first_skb, adapter->vlan_grp ? true : false, |
| 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(pdev, 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(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) |
| { |
| u16 vtag[BE_NUM_VLANS_SUPPORTED]; |
| u16 ntags = 0, i; |
| int status = 0; |
| |
| if (adapter->vlans_added <= adapter->max_vlans) { |
| /* Construct VLAN Table to give to HW */ |
| for (i = 0; i < VLAN_GROUP_ARRAY_LEN; 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); |
| struct be_eq_obj *rx_eq = &adapter->rx_eq; |
| struct be_eq_obj *tx_eq = &adapter->tx_eq; |
| |
| be_eq_notify(adapter, rx_eq->q.id, false, false, 0); |
| be_eq_notify(adapter, tx_eq->q.id, false, false, 0); |
| adapter->vlan_grp = grp; |
| be_eq_notify(adapter, rx_eq->q.id, true, false, 0); |
| be_eq_notify(adapter, tx_eq->q.id, true, false, 0); |
| } |
| |
| static void be_vlan_add_vid(struct net_device *netdev, u16 vid) |
| { |
| struct be_adapter *adapter = netdev_priv(netdev); |
| |
| if (!be_physfn(adapter)) |
| return; |
| |
| adapter->vlan_tag[vid] = 1; |
| adapter->vlans_added++; |
| if (adapter->vlans_added <= (adapter->max_vlans + 1)) |
| be_vid_config(adapter); |
| } |
| |
| static void be_vlan_rem_vid(struct net_device *netdev, u16 vid) |
| { |
| struct be_adapter *adapter = netdev_priv(netdev); |
| |
| if (!be_physfn(adapter)) |
| return; |
| |
| adapter->vlan_tag[vid] = 0; |
| vlan_group_set_device(adapter->vlan_grp, vid, NULL); |
| adapter->vlans_added--; |
| if (adapter->vlans_added <= adapter->max_vlans) |
| be_vid_config(adapter); |
| } |
| |
| 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; |
| |
| status = be_cmd_pmac_del(adapter, adapter->vf_if_handle[vf], |
| adapter->vf_pmac_id[vf]); |
| |
| status = be_cmd_pmac_add(adapter, mac, adapter->vf_if_handle[vf], |
| &adapter->vf_pmac_id[vf]); |
| if (!status) |
| dev_err(&adapter->pdev->dev, "MAC %pM set on VF %d Failed\n", |
| mac, vf); |
| return status; |
| } |
| |
| static void be_rx_rate_update(struct be_adapter *adapter) |
| { |
| struct be_drvr_stats *stats = drvr_stats(adapter); |
| ulong now = jiffies; |
| |
| /* Wrapped around */ |
| if (time_before(now, stats->be_rx_jiffies)) { |
| stats->be_rx_jiffies = now; |
| return; |
| } |
| |
| /* Update the rate once in two seconds */ |
| if ((now - stats->be_rx_jiffies) < 2 * HZ) |
| return; |
| |
| stats->be_rx_rate = be_calc_rate(stats->be_rx_bytes |
| - stats->be_rx_bytes_prev, |
| now - stats->be_rx_jiffies); |
| stats->be_rx_jiffies = now; |
| stats->be_rx_bytes_prev = stats->be_rx_bytes; |
| } |
| |
| static void be_rx_stats_update(struct be_adapter *adapter, |
| u32 pktsize, u16 numfrags) |
| { |
| struct be_drvr_stats *stats = drvr_stats(adapter); |
| |
| stats->be_rx_compl++; |
| stats->be_rx_frags += numfrags; |
| stats->be_rx_bytes += pktsize; |
| stats->be_rx_pkts++; |
| } |
| |
| static inline bool do_pkt_csum(struct be_eth_rx_compl *rxcp, bool cso) |
| { |
| u8 l4_cksm, ip_version, ipcksm, tcpf = 0, udpf = 0, ipv6_chk; |
| |
| l4_cksm = AMAP_GET_BITS(struct amap_eth_rx_compl, l4_cksm, rxcp); |
| ipcksm = AMAP_GET_BITS(struct amap_eth_rx_compl, ipcksm, rxcp); |
| ip_version = AMAP_GET_BITS(struct amap_eth_rx_compl, ip_version, rxcp); |
| if (ip_version) { |
| tcpf = AMAP_GET_BITS(struct amap_eth_rx_compl, tcpf, rxcp); |
| udpf = AMAP_GET_BITS(struct amap_eth_rx_compl, udpf, rxcp); |
| } |
| ipv6_chk = (ip_version && (tcpf || udpf)); |
| |
| return ((l4_cksm && ipv6_chk && ipcksm) && cso) ? false : true; |
| } |
| |
| static struct be_rx_page_info * |
| get_rx_page_info(struct be_adapter *adapter, u16 frag_idx) |
| { |
| struct be_rx_page_info *rx_page_info; |
| struct be_queue_info *rxq = &adapter->rx_obj.q; |
| |
| rx_page_info = &adapter->rx_obj.page_info_tbl[frag_idx]; |
| BUG_ON(!rx_page_info->page); |
| |
| if (rx_page_info->last_page_user) { |
| pci_unmap_page(adapter->pdev, dma_unmap_addr(rx_page_info, bus), |
| adapter->big_page_size, PCI_DMA_FROMDEVICE); |
| 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_eth_rx_compl *rxcp) |
| { |
| struct be_queue_info *rxq = &adapter->rx_obj.q; |
| struct be_rx_page_info *page_info; |
| u16 rxq_idx, i, num_rcvd; |
| |
| rxq_idx = AMAP_GET_BITS(struct amap_eth_rx_compl, fragndx, rxcp); |
| num_rcvd = AMAP_GET_BITS(struct amap_eth_rx_compl, numfrags, rxcp); |
| |
| for (i = 0; i < num_rcvd; i++) { |
| page_info = get_rx_page_info(adapter, rxq_idx); |
| put_page(page_info->page); |
| memset(page_info, 0, sizeof(*page_info)); |
| index_inc(&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 sk_buff *skb, struct be_eth_rx_compl *rxcp, |
| u16 num_rcvd) |
| { |
| struct be_queue_info *rxq = &adapter->rx_obj.q; |
| struct be_rx_page_info *page_info; |
| u16 rxq_idx, i, j; |
| u32 pktsize, hdr_len, curr_frag_len, size; |
| u8 *start; |
| |
| rxq_idx = AMAP_GET_BITS(struct amap_eth_rx_compl, fragndx, rxcp); |
| pktsize = AMAP_GET_BITS(struct amap_eth_rx_compl, pktsize, rxcp); |
| |
| page_info = get_rx_page_info(adapter, 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(pktsize, rx_frag_size); |
| |
| /* Copy the header portion into skb_data */ |
| hdr_len = min((u32)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 (pktsize <= rx_frag_size) { |
| BUG_ON(num_rcvd != 1); |
| goto done; |
| } |
| |
| /* More frags present for this completion */ |
| size = pktsize; |
| for (i = 1, j = 0; i < num_rcvd; i++) { |
| size -= curr_frag_len; |
| index_inc(&rxq_idx, rxq->len); |
| page_info = get_rx_page_info(adapter, rxq_idx); |
| |
| curr_frag_len = min(size, 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; |
| |
| page_info->page = NULL; |
| } |
| BUG_ON(j > MAX_SKB_FRAGS); |
| |
| done: |
| be_rx_stats_update(adapter, pktsize, num_rcvd); |
| return; |
| } |
| |
| /* Process the RX completion indicated by rxcp when GRO is disabled */ |
| static void be_rx_compl_process(struct be_adapter *adapter, |
| struct be_eth_rx_compl *rxcp) |
| { |
| struct sk_buff *skb; |
| u32 vlanf, vid; |
| u16 num_rcvd; |
| u8 vtm; |
| |
| num_rcvd = AMAP_GET_BITS(struct amap_eth_rx_compl, numfrags, rxcp); |
| /* Is it a flush compl that has no data */ |
| if (unlikely(num_rcvd == 0)) |
| return; |
| |
| 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, rxcp); |
| return; |
| } |
| |
| skb_fill_rx_data(adapter, skb, rxcp, num_rcvd); |
| |
| if (do_pkt_csum(rxcp, adapter->rx_csum)) |
| skb->ip_summed = CHECKSUM_NONE; |
| else |
| skb->ip_summed = CHECKSUM_UNNECESSARY; |
| |
| skb->truesize = skb->len + sizeof(struct sk_buff); |
| skb->protocol = eth_type_trans(skb, adapter->netdev); |
| |
| vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl, vtp, rxcp); |
| vtm = AMAP_GET_BITS(struct amap_eth_rx_compl, vtm, rxcp); |
| |
| /* vlanf could be wrongly set in some cards. |
| * ignore if vtm is not set */ |
| if ((adapter->cap & 0x400) && !vtm) |
| vlanf = 0; |
| |
| if (unlikely(vlanf)) { |
| if (!adapter->vlan_grp || adapter->vlans_added == 0) { |
| kfree_skb(skb); |
| return; |
| } |
| vid = AMAP_GET_BITS(struct amap_eth_rx_compl, vlan_tag, rxcp); |
| vid = swab16(vid); |
| vlan_hwaccel_receive_skb(skb, adapter->vlan_grp, vid); |
| } else { |
| netif_receive_skb(skb); |
| } |
| |
| return; |
| } |
| |
| /* Process the RX completion indicated by rxcp when GRO is enabled */ |
| static void be_rx_compl_process_gro(struct be_adapter *adapter, |
| struct be_eth_rx_compl *rxcp) |
| { |
| struct be_rx_page_info *page_info; |
| struct sk_buff *skb = NULL; |
| struct be_queue_info *rxq = &adapter->rx_obj.q; |
| struct be_eq_obj *eq_obj = &adapter->rx_eq; |
| u32 num_rcvd, pkt_size, remaining, vlanf, curr_frag_len; |
| u16 i, rxq_idx = 0, vid, j; |
| u8 vtm; |
| |
| num_rcvd = AMAP_GET_BITS(struct amap_eth_rx_compl, numfrags, rxcp); |
| /* Is it a flush compl that has no data */ |
| if (unlikely(num_rcvd == 0)) |
| return; |
| |
| pkt_size = AMAP_GET_BITS(struct amap_eth_rx_compl, pktsize, rxcp); |
| vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl, vtp, rxcp); |
| rxq_idx = AMAP_GET_BITS(struct amap_eth_rx_compl, fragndx, rxcp); |
| vtm = AMAP_GET_BITS(struct amap_eth_rx_compl, vtm, rxcp); |
| |
| /* vlanf could be wrongly set in some cards. |
| * ignore if vtm is not set */ |
| if ((adapter->cap & 0x400) && !vtm) |
| vlanf = 0; |
| |
| skb = napi_get_frags(&eq_obj->napi); |
| if (!skb) { |
| be_rx_compl_discard(adapter, rxcp); |
| return; |
| } |
| |
| remaining = pkt_size; |
| for (i = 0, j = -1; i < num_rcvd; i++) { |
| page_info = get_rx_page_info(adapter, 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(&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 = pkt_size; |
| skb->data_len = pkt_size; |
| skb->truesize += pkt_size; |
| skb->ip_summed = CHECKSUM_UNNECESSARY; |
| |
| if (likely(!vlanf)) { |
| napi_gro_frags(&eq_obj->napi); |
| } else { |
| vid = AMAP_GET_BITS(struct amap_eth_rx_compl, vlan_tag, rxcp); |
| vid = swab16(vid); |
| |
| if (!adapter->vlan_grp || adapter->vlans_added == 0) |
| return; |
| |
| vlan_gro_frags(&eq_obj->napi, adapter->vlan_grp, vid); |
| } |
| |
| be_rx_stats_update(adapter, pkt_size, num_rcvd); |
| return; |
| } |
| |
| static struct be_eth_rx_compl *be_rx_compl_get(struct be_adapter *adapter) |
| { |
| struct be_eth_rx_compl *rxcp = queue_tail_node(&adapter->rx_obj.cq); |
| |
| if (rxcp->dw[offsetof(struct amap_eth_rx_compl, valid) / 32] == 0) |
| return NULL; |
| |
| be_dws_le_to_cpu(rxcp, sizeof(*rxcp)); |
| |
| queue_tail_inc(&adapter->rx_obj.cq); |
| return rxcp; |
| } |
| |
| /* To reset the valid bit, we need to reset the whole word as |
| * when walking the queue the valid entries are little-endian |
| * and invalid entries are host endian |
| */ |
| static inline void be_rx_compl_reset(struct be_eth_rx_compl *rxcp) |
| { |
| rxcp->dw[offsetof(struct amap_eth_rx_compl, valid) / 32] = 0; |
| } |
| |
| static inline struct page *be_alloc_pages(u32 size) |
| { |
| gfp_t alloc_flags = GFP_ATOMIC; |
| u32 order = get_order(size); |
| if (order > 0) |
| alloc_flags |= __GFP_COMP; |
| return alloc_pages(alloc_flags, 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_adapter *adapter) |
| { |
| struct be_rx_page_info *page_info_tbl = adapter->rx_obj.page_info_tbl; |
| struct be_rx_page_info *page_info = NULL, *prev_page_info = NULL; |
| struct be_queue_info *rxq = &adapter->rx_obj.q; |
| struct page *pagep = NULL; |
| struct be_eth_rx_d *rxd; |
| u64 page_dmaaddr = 0, frag_dmaaddr; |
| u32 posted, page_offset = 0; |
| |
| page_info = &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); |
| if (unlikely(!pagep)) { |
| drvr_stats(adapter)->be_ethrx_post_fail++; |
| break; |
| } |
| page_dmaaddr = pci_map_page(adapter->pdev, pagep, 0, |
| adapter->big_page_size, |
| PCI_DMA_FROMDEVICE); |
| 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 */ |
| adapter->rx_post_starved = true; |
| } |
| |
| return; |
| } |
| |
| 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; |
| |
| 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, 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; |
| |
| 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_page_info *page_info; |
| struct be_queue_info *rxq = &adapter->rx_obj.q; |
| struct be_queue_info *rx_cq = &adapter->rx_obj.cq; |
| struct be_eth_rx_compl *rxcp; |
| u16 tail; |
| |
| /* First cleanup pending rx completions */ |
| while ((rxcp = be_rx_compl_get(adapter)) != NULL) { |
| be_rx_compl_discard(adapter, rxcp); |
| be_rx_compl_reset(rxcp); |
| be_cq_notify(adapter, rx_cq->id, true, 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, 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(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->base_eq_id = adapter->tx_eq.q.id; |
| |
| /* 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; |
| |
| q = &adapter->rx_obj.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); |
| } |
| be_queue_free(adapter, q); |
| |
| q = &adapter->rx_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->rx_eq); |
| |
| q = &adapter->rx_eq.q; |
| if (q->created) |
| be_cmd_q_destroy(adapter, q, QTYPE_EQ); |
| be_queue_free(adapter, q); |
| } |
| |
| static int be_rx_queues_create(struct be_adapter *adapter) |
| { |
| struct be_queue_info *eq, *q, *cq; |
| int rc; |
| |
| adapter->big_page_size = (1 << get_order(rx_frag_size)) * PAGE_SIZE; |
| adapter->rx_eq.max_eqd = BE_MAX_EQD; |
| adapter->rx_eq.min_eqd = 0; |
| adapter->rx_eq.cur_eqd = 0; |
| adapter->rx_eq.enable_aic = true; |
| |
| /* Alloc Rx Event queue */ |
| eq = &adapter->rx_eq.q; |
| rc = be_queue_alloc(adapter, eq, EVNT_Q_LEN, |
| sizeof(struct be_eq_entry)); |
| if (rc) |
| return rc; |
| |
| /* Ask BE to create Rx Event queue */ |
| rc = be_cmd_eq_create(adapter, eq, adapter->rx_eq.cur_eqd); |
| if (rc) |
| goto rx_eq_free; |
| |
| /* Alloc RX eth compl queue */ |
| cq = &adapter->rx_obj.cq; |
| rc = be_queue_alloc(adapter, cq, RX_CQ_LEN, |
| sizeof(struct be_eth_rx_compl)); |
| if (rc) |
| goto rx_eq_destroy; |
| |
| /* Ask BE to create Rx eth compl queue */ |
| rc = be_cmd_cq_create(adapter, cq, eq, false, false, 3); |
| if (rc) |
| goto rx_cq_free; |
| |
| /* Alloc RX eth queue */ |
| q = &adapter->rx_obj.q; |
| rc = be_queue_alloc(adapter, q, RX_Q_LEN, sizeof(struct be_eth_rx_d)); |
| if (rc) |
| goto rx_cq_destroy; |
| |
| /* Ask BE to create Rx eth queue */ |
| rc = be_cmd_rxq_create(adapter, q, cq->id, rx_frag_size, |
| BE_MAX_JUMBO_FRAME_SIZE, adapter->if_handle, false); |
| if (rc) |
| goto rx_q_free; |
| |
| return 0; |
| rx_q_free: |
| be_queue_free(adapter, q); |
| rx_cq_destroy: |
| be_cmd_q_destroy(adapter, cq, QTYPE_CQ); |
| rx_cq_free: |
| be_queue_free(adapter, cq); |
| rx_eq_destroy: |
| be_cmd_q_destroy(adapter, eq, QTYPE_EQ); |
| rx_eq_free: |
| be_queue_free(adapter, eq); |
| return rc; |
| } |
| |
| /* There are 8 evt ids per func. Retruns the evt id's bit number */ |
| static inline int be_evt_bit_get(struct be_adapter *adapter, u32 eq_id) |
| { |
| return eq_id - adapter->base_eq_id; |
| } |
| |
| static irqreturn_t be_intx(int irq, void *dev) |
| { |
| struct be_adapter *adapter = dev; |
| int isr; |
| |
| isr = ioread32(adapter->csr + CEV_ISR0_OFFSET + |
| (adapter->tx_eq.q.id/ 8) * CEV_ISR_SIZE); |
| if (!isr) |
| return IRQ_NONE; |
| |
| event_handle(adapter, &adapter->tx_eq); |
| event_handle(adapter, &adapter->rx_eq); |
| |
| return IRQ_HANDLED; |
| } |
| |
| static irqreturn_t be_msix_rx(int irq, void *dev) |
| { |
| struct be_adapter *adapter = dev; |
| |
| event_handle(adapter, &adapter->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_adapter *adapter, |
| struct be_eth_rx_compl *rxcp) |
| { |
| int err = AMAP_GET_BITS(struct amap_eth_rx_compl, err, rxcp); |
| int tcp_frame = AMAP_GET_BITS(struct amap_eth_rx_compl, tcpf, rxcp); |
| |
| if (err) |
| drvr_stats(adapter)->be_rxcp_err++; |
| |
| return (tcp_frame && !err) ? true : false; |
| } |
| |
| 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_adapter *adapter = |
| container_of(rx_eq, struct be_adapter, rx_eq); |
| struct be_queue_info *rx_cq = &adapter->rx_obj.cq; |
| struct be_eth_rx_compl *rxcp; |
| u32 work_done; |
| |
| adapter->stats.drvr_stats.be_rx_polls++; |
| for (work_done = 0; work_done < budget; work_done++) { |
| rxcp = be_rx_compl_get(adapter); |
| if (!rxcp) |
| break; |
| |
| if (do_gro(adapter, rxcp)) |
| be_rx_compl_process_gro(adapter, rxcp); |
| else |
| be_rx_compl_process(adapter, rxcp); |
| |
| be_rx_compl_reset(rxcp); |
| } |
| |
| /* Refill the queue */ |
| if (atomic_read(&adapter->rx_obj.q.used) < RX_FRAGS_REFILL_WM) |
| be_post_rx_frags(adapter); |
| |
| /* 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); |
| } |
| |
| drvr_stats(adapter)->be_tx_events++; |
| drvr_stats(adapter)->be_tx_compl += tx_compl; |
| } |
| |
| return 1; |
| } |
| |
| static void be_worker(struct work_struct *work) |
| { |
| struct be_adapter *adapter = |
| container_of(work, struct be_adapter, work.work); |
| |
| be_cmd_get_stats(adapter, &adapter->stats.cmd); |
| |
| /* Set EQ delay */ |
| be_rx_eqd_update(adapter); |
| |
| be_tx_rate_update(adapter); |
| be_rx_rate_update(adapter); |
| |
| if (adapter->rx_post_starved) { |
| adapter->rx_post_starved = false; |
| be_post_rx_frags(adapter); |
| } |
| |
| schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000)); |
| } |
| |
| static void be_msix_disable(struct be_adapter *adapter) |
| { |
| if (adapter->msix_enabled) { |
| pci_disable_msix(adapter->pdev); |
| adapter->msix_enabled = false; |
| } |
| } |
| |
| static void be_msix_enable(struct be_adapter *adapter) |
| { |
| int i, status; |
| |
| for (i = 0; i < BE_NUM_MSIX_VECTORS; i++) |
| adapter->msix_entries[i].entry = i; |
| |
| status = pci_enable_msix(adapter->pdev, adapter->msix_entries, |
| BE_NUM_MSIX_VECTORS); |
| if (status == 0) |
| adapter->msix_enabled = true; |
| return; |
| } |
| |
| static void be_sriov_enable(struct be_adapter *adapter) |
| { |
| #ifdef CONFIG_PCI_IOV |
| int status; |
| if (be_physfn(adapter) && num_vfs) { |
| status = pci_enable_sriov(adapter->pdev, num_vfs); |
| adapter->sriov_enabled = status ? false : true; |
| } |
| #endif |
| return; |
| } |
| |
| 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, u32 eq_id) |
| { |
| return adapter->msix_entries[ |
| be_evt_bit_get(adapter, eq_id)].vector; |
| } |
| |
| static int be_request_irq(struct be_adapter *adapter, |
| struct be_eq_obj *eq_obj, |
| void *handler, char *desc) |
| { |
| 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->q.id); |
| return request_irq(vec, handler, 0, eq_obj->desc, adapter); |
| } |
| |
| static void be_free_irq(struct be_adapter *adapter, struct be_eq_obj *eq_obj) |
| { |
| int vec = be_msix_vec_get(adapter, eq_obj->q.id); |
| free_irq(vec, adapter); |
| } |
| |
| static int be_msix_register(struct be_adapter *adapter) |
| { |
| int status; |
| |
| status = be_request_irq(adapter, &adapter->tx_eq, be_msix_tx_mcc, "tx"); |
| if (status) |
| goto err; |
| |
| status = be_request_irq(adapter, &adapter->rx_eq, be_msix_rx, "rx"); |
| if (status) |
| goto free_tx_irq; |
| |
| return 0; |
| |
| free_tx_irq: |
| be_free_irq(adapter, &adapter->tx_eq); |
| err: |
| dev_warn(&adapter->pdev->dev, |
| "MSIX Request IRQ failed - err %d\n", status); |
| pci_disable_msix(adapter->pdev); |
| adapter->msix_enabled = false; |
| return status; |
| } |
| |
| static int be_irq_register(struct be_adapter *adapter) |
| { |
| struct net_device *netdev = adapter->netdev; |
| int status; |
| |
| if (adapter->msix_enabled) { |
| 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; |
| |
| if (!adapter->isr_registered) |
| return; |
| |
| /* INTx */ |
| if (!adapter->msix_enabled) { |
| free_irq(netdev->irq, adapter); |
| goto done; |
| } |
| |
| /* MSIx */ |
| be_free_irq(adapter, &adapter->tx_eq); |
| be_free_irq(adapter, &adapter->rx_eq); |
| done: |
| adapter->isr_registered = false; |
| return; |
| } |
| |
| static int be_open(struct net_device *netdev) |
| { |
| struct be_adapter *adapter = netdev_priv(netdev); |
| struct be_eq_obj *rx_eq = &adapter->rx_eq; |
| struct be_eq_obj *tx_eq = &adapter->tx_eq; |
| bool link_up; |
| int status; |
| u8 mac_speed; |
| u16 link_speed; |
| |
| /* First time posting */ |
| be_post_rx_frags(adapter); |
| |
| napi_enable(&rx_eq->napi); |
| napi_enable(&tx_eq->napi); |
| |
| be_irq_register(adapter); |
| |
| be_intr_set(adapter, true); |
| |
| /* The evt queues are created in unarmed state; arm them */ |
| be_eq_notify(adapter, rx_eq->q.id, true, false, 0); |
| be_eq_notify(adapter, tx_eq->q.id, true, false, 0); |
| |
| /* Rx compl queue may be in unarmed state; rearm it */ |
| be_cq_notify(adapter, adapter->rx_obj.cq.id, true, 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 ret_sts; |
| be_link_status_update(adapter, link_up); |
| |
| if (be_physfn(adapter)) |
| status = be_vid_config(adapter); |
| if (status) |
| goto ret_sts; |
| |
| if (be_physfn(adapter)) { |
| status = be_cmd_set_flow_control(adapter, |
| adapter->tx_fc, adapter->rx_fc); |
| if (status) |
| goto ret_sts; |
| } |
| |
| schedule_delayed_work(&adapter->work, msecs_to_jiffies(100)); |
| ret_sts: |
| return status; |
| } |
| |
| 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 = pci_alloc_consistent(adapter->pdev, cmd.size, &cmd.dma); |
| 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"); |
| pci_free_consistent(adapter->pdev, 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); |
| } |
| |
| pci_free_consistent(adapter->pdev, cmd.size, cmd.va, cmd.dma); |
| return status; |
| } |
| |
| 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; |
| |
| 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; |
| } |
| |
| 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)) { |
| 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_if_handle[vf], |
| NULL, vf+1); |
| if (status) { |
| dev_err(&adapter->pdev->dev, |
| "Interface Create failed for VF %d\n", vf); |
| goto if_destroy; |
| } |
| vf++; |
| } while (vf < num_vfs); |
| } else if (!be_physfn(adapter)) { |
| 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: |
| for (vf = 0; vf < num_vfs; vf++) |
| if (adapter->vf_if_handle[vf]) |
| be_cmd_if_destroy(adapter, adapter->vf_if_handle[vf]); |
| be_cmd_if_destroy(adapter, adapter->if_handle); |
| do_none: |
| return status; |
| } |
| |
| static int be_clear(struct be_adapter *adapter) |
| { |
| be_mcc_queues_destroy(adapter); |
| be_rx_queues_destroy(adapter); |
| be_tx_queues_destroy(adapter); |
| |
| be_cmd_if_destroy(adapter, adapter->if_handle); |
| |
| /* tell fw we're done with firing cmds */ |
| be_cmd_fw_clean(adapter); |
| return 0; |
| } |
| |
| static int be_close(struct net_device *netdev) |
| { |
| struct be_adapter *adapter = netdev_priv(netdev); |
| struct be_eq_obj *rx_eq = &adapter->rx_eq; |
| struct be_eq_obj *tx_eq = &adapter->tx_eq; |
| int vec; |
| |
| cancel_delayed_work_sync(&adapter->work); |
| |
| be_async_mcc_disable(adapter); |
| |
| netif_stop_queue(netdev); |
| netif_carrier_off(netdev); |
| adapter->link_up = false; |
| |
| be_intr_set(adapter, false); |
| |
| if (adapter->msix_enabled) { |
| vec = be_msix_vec_get(adapter, tx_eq->q.id); |
| synchronize_irq(vec); |
| vec = be_msix_vec_get(adapter, rx_eq->q.id); |
| synchronize_irq(vec); |
| } else { |
| synchronize_irq(netdev->irq); |
| } |
| be_irq_unregister(adapter); |
| |
| napi_disable(&rx_eq->napi); |
| napi_disable(&tx_eq->napi); |
| |
| /* Wait for all pending tx completions to arrive so that |
| * all tx skbs are freed. |
| */ |
| be_tx_compl_clean(adapter); |
| |
| return 0; |
| } |
| |
| #define FW_FILE_HDR_SIGN "ServerEngines Corp. " |
| char flash_cookie[2][16] = {"*** SE FLAS", |
| "H DIRECTORY *** "}; |
| |
| 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; |
| struct flash_comp *pflashcomp; |
| int num_comp; |
| |
| 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} |
| }; |
| 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 = 9; |
| } else { |
| pflashcomp = gen2_flash_types; |
| filehdr_size = sizeof(struct flash_file_hdr_g2); |
| num_comp = 8; |
| } |
| 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))) |
| 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; |
| |
| 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 = pci_alloc_consistent(adapter->pdev, flash_cmd.size, |
| &flash_cmd.dma); |
| 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; |
| } |
| |
| pci_free_consistent(adapter->pdev, 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_get_stats = be_get_stats, |
| .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 |
| }; |
| |
| static void be_netdev_init(struct net_device *netdev) |
| { |
| struct be_adapter *adapter = netdev_priv(netdev); |
| |
| 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_HW_CSUM | |
| NETIF_F_GRO; |
| |
| netdev->vlan_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_HW_CSUM; |
| |
| 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); |
| |
| netif_napi_add(netdev, &adapter->rx_eq.napi, be_poll_rx, |
| BE_NAPI_WEIGHT); |
| netif_napi_add(netdev, &adapter->tx_eq.napi, be_poll_tx_mcc, |
| BE_NAPI_WEIGHT); |
| |
| netif_carrier_off(netdev); |
| netif_stop_queue(netdev); |
| } |
| |
| 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 (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) |
| pci_free_consistent(adapter->pdev, mem->size, |
| mem->va, mem->dma); |
| |
| mem = &adapter->mc_cmd_mem; |
| if (mem->va) |
| pci_free_consistent(adapter->pdev, 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 = pci_alloc_consistent(adapter->pdev, |
| mbox_mem_alloc->size, &mbox_mem_alloc->dma); |
| 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 = pci_alloc_consistent(adapter->pdev, mc_cmd_mem->size, |
| &mc_cmd_mem->dma); |
| if (mc_cmd_mem->va == NULL) { |
| status = -ENOMEM; |
| goto free_mbox; |
| } |
| memset(mc_cmd_mem->va, 0, mc_cmd_mem->size); |
| |
| spin_lock_init(&adapter->mbox_lock); |
| spin_lock_init(&adapter->mcc_lock); |
| spin_lock_init(&adapter->mcc_cq_lock); |
| |
| pci_save_state(adapter->pdev); |
| return 0; |
| |
| free_mbox: |
| pci_free_consistent(adapter->pdev, 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_stats_obj *stats = &adapter->stats; |
| struct be_dma_mem *cmd = &stats->cmd; |
| |
| if (cmd->va) |
| pci_free_consistent(adapter->pdev, cmd->size, |
| cmd->va, cmd->dma); |
| } |
| |
| static int be_stats_init(struct be_adapter *adapter) |
| { |
| struct be_stats_obj *stats = &adapter->stats; |
| struct be_dma_mem *cmd = &stats->cmd; |
| |
| cmd->size = sizeof(struct be_cmd_req_get_stats); |
| cmd->va = pci_alloc_consistent(adapter->pdev, cmd->size, &cmd->dma); |
| 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; |
| |
| unregister_netdev(adapter->netdev); |
| |
| be_clear(adapter); |
| |
| be_stats_cleanup(adapter); |
| |
| be_ctrl_cleanup(adapter); |
| |
| 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->cap); |
| 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->cap & 0x400) |
| adapter->max_vlans = BE_NUM_VLANS_SUPPORTED/4; |
| else |
| adapter->max_vlans = BE_NUM_VLANS_SUPPORTED; |
| |
| return 0; |
| } |
| |
| 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); |
| |
| 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; |
| default: |
| adapter->generation = 0; |
| } |
| |
| adapter->pdev = pdev; |
| pci_set_drvdata(pdev, adapter); |
| adapter->netdev = netdev; |
| be_netdev_init(netdev); |
| SET_NETDEV_DEV(netdev, &pdev->dev); |
| |
| be_msix_enable(adapter); |
| |
| status = pci_set_dma_mask(pdev, DMA_BIT_MASK(64)); |
| if (!status) { |
| netdev->features |= NETIF_F_HIGHDMA; |
| } else { |
| status = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); |
| if (status) { |
| dev_err(&pdev->dev, "Could not set PCI DMA Mask\n"); |
| goto free_netdev; |
| } |
| } |
| |
| be_sriov_enable(adapter); |
| |
| status = be_ctrl_init(adapter); |
| if (status) |
| goto free_netdev; |
| |
| /* sync up with fw's ready state */ |
| if (be_physfn(adapter)) { |
| status = be_cmd_POST(adapter); |
| if (status) |
| goto ctrl_clean; |
| |
| status = be_cmd_reset_function(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_stats_init(adapter); |
| if (status) |
| goto ctrl_clean; |
| |
| status = be_get_config(adapter); |
| if (status) |
| goto stats_clean; |
| |
| INIT_DELAYED_WORK(&adapter->work, be_worker); |
| |
| status = be_setup(adapter); |
| if (status) |
| goto stats_clean; |
| |
| status = register_netdev(netdev); |
| if (status != 0) |
| goto unsetup; |
| |
| dev_info(&pdev->dev, "%s port %d\n", nic_name(pdev), adapter->port_num); |
| return 0; |
| |
| unsetup: |
| be_clear(adapter); |
| stats_clean: |
| be_stats_cleanup(adapter); |
| ctrl_clean: |
| be_ctrl_cleanup(adapter); |
| free_netdev: |
| be_msix_disable(adapter); |
| be_sriov_disable(adapter); |
| free_netdev(adapter->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; |
| |
| 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); |
| |
| 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); |
| |
| /* 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); |
| 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); |
| struct net_device *netdev = adapter->netdev; |
| |
| netif_device_detach(netdev); |
| |
| be_cmd_reset_function(adapter); |
| |
| if (adapter->wol) |
| be_setup_wol(adapter, true); |
| |
| pci_disable_device(pdev); |
| |
| return; |
| } |
| |
| 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"); |
| return; |
| } |
| |
| 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; |
| } |
| |
| if (num_vfs > 32) { |
| printk(KERN_WARNING DRV_NAME |
| " : Module param num_vfs must not be greater than 32." |
| "Using 32\n"); |
| num_vfs = 32; |
| } |
| |
| 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); |