diff options
Diffstat (limited to 'drivers/net/benet/be_main.c')
| -rw-r--r-- | drivers/net/benet/be_main.c | 2401 |
1 files changed, 0 insertions, 2401 deletions
diff --git a/drivers/net/benet/be_main.c b/drivers/net/benet/be_main.c deleted file mode 100644 index 3a1f7902c16..00000000000 --- a/drivers/net/benet/be_main.c +++ /dev/null @@ -1,2401 +0,0 @@ -/* - * Copyright (C) 2005 - 2009 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; -module_param(rx_frag_size, uint, S_IRUGO); -MODULE_PARM_DESC(rx_frag_size, "Size of a fragment that holds rcvd data."); - -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(BE_VENDOR_ID, OC_DEVICE_ID3) }, - { 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 (!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 (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 (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; - - 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); - 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 = port_stats->rx_total_frames; - dev_stats->tx_packets = port_stats->tx_unicastframes + - port_stats->tx_multicastframes + port_stats->tx_broadcastframes; - dev_stats->rx_bytes = (u64) port_stats->rx_bytes_msd << 32 | - (u64) port_stats->rx_bytes_lsd; - dev_stats->tx_bytes = (u64) port_stats->tx_bytes_msd << 32 | - (u64) port_stats->tx_bytes_lsd; - - /* 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, 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; - 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 int make_tx_wrbs(struct be_adapter *adapter, - struct sk_buff *skb, u32 wrb_cnt, bool dummy_wrb) -{ - u64 busaddr; - u32 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; - - hdr = queue_head_node(txq); - atomic_add(wrb_cnt, &txq->used); - queue_head_inc(txq); - - if (skb->len > skb->data_len) { - int len = skb->len - skb->data_len; - busaddr = pci_map_single(pdev, skb->data, len, - PCI_DMA_TODEVICE); - 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); - 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; -} - -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 - */ - 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, 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) { - dev_info(&adapter->pdev->dev, - "MTU must be between %d and %d bytes\n", - BE_MIN_MTU, BE_MAX_JUMBO_FRAME_SIZE); - 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; -} - -/* - * if there are BE_NUM_VLANS_SUPPORTED or lesser number of VLANS configured, - * program them in BE. If more than BE_NUM_VLANS_SUPPORTED are configured, - * set the BE in promiscuous VLAN mode. - */ -static int be_vid_config(struct be_adapter *adapter) -{ - u16 vtag[BE_NUM_VLANS_SUPPORTED]; - u16 ntags = 0, i; - int status; - - if (adapter->num_vlans <= BE_NUM_VLANS_SUPPORTED) { - /* 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); - - adapter->num_vlans++; - adapter->vlan_tag[vid] = 1; - - be_vid_config(adapter); -} - -static void be_vlan_rem_vid(struct net_device *netdev, u16 vid) -{ - struct be_adapter *adapter = netdev_priv(netdev); - - adapter->num_vlans--; - adapter->vlan_tag[vid] = 0; - - vlan_group_set_device(adapter->vlan_grp, vid, NULL); - 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 > BE_MAX_MC) { - be_cmd_multicast_set(adapter, adapter->if_handle, NULL, 0, - &adapter->mc_cmd_mem); - goto done; - } - - be_cmd_multicast_set(adapter, adapter->if_handle, netdev->mc_list, - netdev->mc_count, &adapter->mc_cmd_mem); -done: - return; -} - -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; -} - -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, pci_unmap_addr(rx_page_info, bus), - adapter->big_page_size, PCI_DMA_FROMDEVICE); - - 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) -{ - struct be_queue_info *rxq = &adapter->rx_obj.q; - struct be_rx_page_info *page_info; - u16 rxq_idx, i, num_rcvd, 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); - num_rcvd = AMAP_GET_BITS(struct amap_eth_rx_compl, numfrags, 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; - } - memset(page_info, 0, sizeof(*page_info)); - - 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; - - memset(page_info, 0, sizeof(*page_info)); - } - 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; - u8 vtm; - - 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; - - skb = netdev_alloc_skb_ip_align(adapter->netdev, BE_HDR_LEN); - if (!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); - - 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); - skb->dev = adapter->netdev; - - if (vlanf) { - if (!adapter->vlan_grp || adapter->num_vlans == 0) { - kfree_skb(skb); - return; - } - vid = AMAP_GET_BITS(struct amap_eth_rx_compl, vlan_tag, rxcp); - vid = be16_to_cpu(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); - 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 = be16_to_cpu(vid); - - if (!adapter->vlan_grp || adapter->num_vlans == 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; - 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; - pci_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)); - queue_head_inc(rxq); - - /* 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; - } - page_info = &page_info_tbl[rxq->head]; - } - if (pagep) - 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; - u64 busaddr; - u16 cur_index, num_wrbs = 0; - - cur_index = txq->tail; - sent_skb = sent_skbs[cur_index]; - BUG_ON(!sent_skb); - sent_skbs[cur_index] = NULL; - wrb = queue_tail_node(txq); - be_dws_le_to_cpu(wrb, sizeof(*wrb)); - busaddr = ((u64)wrb->frag_pa_hi << 32) | (u64)wrb->frag_pa_lo; - if (busaddr != 0) { - pci_unmap_single(adapter->pdev, busaddr, - wrb->frag_len, PCI_DMA_TODEVICE); - } - num_wrbs++; - queue_tail_inc(txq); - - while (cur_index != last_index) { - cur_index = txq->tail; - wrb = queue_tail_node(txq); - be_dws_le_to_cpu(wrb, sizeof(*wrb)); - busaddr = ((u64)wrb->frag_pa_hi << 32) | (u64)wrb->frag_pa_lo; - if (busaddr != 0) { - pci_unmap_page(adapter->pdev, busaddr, - wrb->frag_len, PCI_DMA_TODEVICE); - } - num_wrbs++; - queue_tail_inc(txq); - } - - 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; - - /* 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)); -} - -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; - /* 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); - 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 - 8 * be_pci_func(adapter); -} - -static irqreturn_t be_intx(int irq, void *dev) -{ - struct be_adapter *adapter = dev; - int isr; - - isr = ioread32(adapter->csr + CEV_ISR0_OFFSET + - be_pci_func(adapter) * 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; -} - -void be_process_tx(struct be_adapter *adapter) -{ - 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; - u32 num_cmpl = 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); - num_cmpl++; - } - - if (num_cmpl) { - be_cq_notify(adapter, tx_cq->id, true, num_cmpl); - - /* 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 += num_cmpl; - } -} - -/* 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); - - napi_complete(napi); - - be_process_tx(adapter); - - be_process_mcc(adapter); - - 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 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 */ - 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); - - 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); - - status = be_vid_config(adapter); - if (status) - goto ret_sts; - - 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; - int status; - - cap_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST | - BE_IF_FLAGS_MCAST_PROMISCUOUS | - BE_IF_FLAGS_PROMISCUOUS | - BE_IF_FLAGS_PASS_L3L4_ERRORS; - en_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST | - 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); - if (status != 0) - goto do_none; - - 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: - 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); - - 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 crc_offset; - u8 flashed_crc[4]; - int status; - crc_offset = FLASH_REDBOOT_START + FLASH_REDBOOT_IMAGE_MAX_SIZE - 4 - + sizeof(struct flash_file_hdr) - 32*1024; - p += crc_offset; - status = be_cmd_get_flash_crc(adapter, flashed_crc); - 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_image(struct be_adapter *adapter, - const struct firmware *fw, - struct be_dma_mem *flash_cmd, u32 flash_type) -{ - int status; - u32 flash_op, image_offset = 0, total_bytes, image_size = 0; - int num_bytes; - const u8 *p = fw->data; - struct be_cmd_write_flashrom *req = flash_cmd->va; - - switch (flash_type) { - case FLASHROM_TYPE_ISCSI_ACTIVE: - image_offset = FLASH_iSCSI_PRIMARY_IMAGE_START; - image_size = FLASH_IMAGE_MAX_SIZE; - break; - case FLASHROM_TYPE_ISCSI_BACKUP: - image_offset = FLASH_iSCSI_BACKUP_IMAGE_START; - image_size = FLASH_IMAGE_MAX_SIZE; - break; - case FLASHROM_TYPE_FCOE_FW_ACTIVE: - image_offset = FLASH_FCoE_PRIMARY_IMAGE_START; - image_size = FLASH_IMAGE_MAX_SIZE; - break; - case FLASHROM_TYPE_FCOE_FW_BACKUP: - image_offset = FLASH_FCoE_BACKUP_IMAGE_START; - image_size = FLASH_IMAGE_MAX_SIZE; - break; - case FLASHROM_TYPE_BIOS: - image_offset = FLASH_iSCSI_BIOS_START; - image_size = FLASH_BIOS_IMAGE_MAX_SIZE; - break; - case FLASHROM_TYPE_FCOE_BIOS: - image_offset = FLASH_FCoE_BIOS_START; - image_size = FLASH_BIOS_IMAGE_MAX_SIZE; - break; - case FLASHROM_TYPE_PXE_BIOS: - image_offset = FLASH_PXE_BIOS_START; - image_size = FLASH_BIOS_IMAGE_MAX_SIZE; - break; - case FLASHROM_TYPE_REDBOOT: - if (!be_flash_redboot(adapter, fw->data)) - return 0; - image_offset = FLASH_REDBOOT_ISM_START; - image_size = FLASH_REDBOOT_IMAGE_MAX_SIZE; - break; - default: - return 0; - } - - p += sizeof(struct flash_file_hdr) + image_offset; - if (p + image_size > fw->data + fw->size) - return -1; - - total_bytes = image_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, - flash_type, flash_op, num_bytes); - if (status) { - dev_err(&adapter->pdev->dev, - "cmd to write to flash rom failed. type/op %d/%d\n", - flash_type, flash_op); - return -1; - } - yield(); - } - - 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 *fhdr; - struct flash_section_info *fsec = NULL; - struct be_dma_mem flash_cmd; - int status; - const u8 *p; - bool entry_found = false; - int flash_type; - char fw_ver[FW_VER_LEN]; - char fw_cfg; - - status = be_cmd_get_fw_ver(adapter, fw_ver); - if (status) - return status; - - fw_cfg = *(fw_ver + 2); - if (fw_cfg == '0') - fw_cfg = '1'; - 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 *) p; - if (memcmp(fhdr->sign, FW_FILE_HDR_SIGN, strlen(FW_FILE_HDR_SIGN))) { - dev_err(&adapter->pdev->dev, - "Firmware(%s) load error (signature did not match)\n", - fw_file); - status = -1; - goto fw_exit; - } - - dev_info(&adapter->pdev->dev, "Flashing firmware file %s\n", fw_file); - - p += sizeof(struct flash_file_hdr); - while (p < (fw->data + fw->size)) { - fsec = (struct flash_section_info *)p; - if (!memcmp(flash_cookie, fsec->cookie, sizeof(flash_cookie))) { - entry_found = true; - break; - } - p += 32; - } - - if (!entry_found) { - status = -1; - dev_err(&adapter->pdev->dev, - "Flash cookie not found in firmware image\n"); - goto fw_exit; - } - - 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; - } - - for (flash_type = FLASHROM_TYPE_ISCSI_ACTIVE; - flash_type <= FLASHROM_TYPE_FCOE_FW_BACKUP; flash_type++) { - status = be_flash_image(adapter, fw, &flash_cmd, - flash_type); - if (status) - break; - } - - 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, -}; - -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) - iounmap(adapter->pcicfg); -} - -static int be_map_pci_bars(struct be_adapter *adapter) -{ - u8 __iomem *addr; - - addr = ioremap_nocache(pci_resource_start(adapter->pdev, 2), - pci_resource_len(adapter->pdev, 2)); - if (addr == NULL) - return -ENOMEM; - adapter->csr = addr; - - addr = ioremap_nocache(pci_resource_start(adapter->pdev, 4), - 128 * 1024); - if (addr == NULL) - goto pci_map_err; - adapter->db = addr; - - addr = ioremap_nocache(pci_resource_start(adapter->pdev, 1), - pci_resource_len(adapter->pdev, 1)); - if (addr == NULL) - goto pci_map_err; - adapter->pcicfg = addr; - - 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); - - 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; - 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_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); - 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); - - 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); - 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; - } - } - - status = be_ctrl_init(adapter); - if (status) - goto free_netdev; - - /* sync up with fw's ready state */ - 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; - - 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); - 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; -} - -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 -}; - -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); |