diff options
Diffstat (limited to 'drivers/net/benet/be_main.c')
| -rw-r--r-- | drivers/net/benet/be_main.c | 3633 |
1 files changed, 0 insertions, 3633 deletions
diff --git a/drivers/net/benet/be_main.c b/drivers/net/benet/be_main.c deleted file mode 100644 index 1a3accab3d1..00000000000 --- a/drivers/net/benet/be_main.c +++ /dev/null @@ -1,3633 +0,0 @@ -/* - * Copyright (C) 2005 - 2011 Emulex - * All rights reserved. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License version 2 - * as published by the Free Software Foundation. The full GNU General - * Public License is included in this distribution in the file called COPYING. - * - * Contact Information: - * linux-drivers@emulex.com - * - * Emulex - * 3333 Susan Street - * Costa Mesa, CA 92626 - */ - -#include <linux/prefetch.h> -#include "be.h" -#include "be_cmds.h" -#include <asm/div64.h> - -MODULE_VERSION(DRV_VER); -MODULE_DEVICE_TABLE(pci, be_dev_ids); -MODULE_DESCRIPTION(DRV_DESC " " DRV_VER); -MODULE_AUTHOR("ServerEngines Corporation"); -MODULE_LICENSE("GPL"); - -static ushort rx_frag_size = 2048; -static unsigned int num_vfs; -module_param(rx_frag_size, ushort, S_IRUGO); -module_param(num_vfs, uint, S_IRUGO); -MODULE_PARM_DESC(rx_frag_size, "Size of a fragment that holds rcvd data."); -MODULE_PARM_DESC(num_vfs, "Number of PCI VFs to initialize"); - -static DEFINE_PCI_DEVICE_TABLE(be_dev_ids) = { - { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID1) }, - { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID2) }, - { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID1) }, - { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID2) }, - { PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID3)}, - { PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID4)}, - { 0 } -}; -MODULE_DEVICE_TABLE(pci, be_dev_ids); -/* UE Status Low CSR */ -static const char * const ue_status_low_desc[] = { - "CEV", - "CTX", - "DBUF", - "ERX", - "Host", - "MPU", - "NDMA", - "PTC ", - "RDMA ", - "RXF ", - "RXIPS ", - "RXULP0 ", - "RXULP1 ", - "RXULP2 ", - "TIM ", - "TPOST ", - "TPRE ", - "TXIPS ", - "TXULP0 ", - "TXULP1 ", - "UC ", - "WDMA ", - "TXULP2 ", - "HOST1 ", - "P0_OB_LINK ", - "P1_OB_LINK ", - "HOST_GPIO ", - "MBOX ", - "AXGMAC0", - "AXGMAC1", - "JTAG", - "MPU_INTPEND" -}; -/* UE Status High CSR */ -static const char * const ue_status_hi_desc[] = { - "LPCMEMHOST", - "MGMT_MAC", - "PCS0ONLINE", - "MPU_IRAM", - "PCS1ONLINE", - "PCTL0", - "PCTL1", - "PMEM", - "RR", - "TXPB", - "RXPP", - "XAUI", - "TXP", - "ARM", - "IPC", - "HOST2", - "HOST3", - "HOST4", - "HOST5", - "HOST6", - "HOST7", - "HOST8", - "HOST9", - "NETC", - "Unknown", - "Unknown", - "Unknown", - "Unknown", - "Unknown", - "Unknown", - "Unknown", - "Unknown" -}; - -static void be_queue_free(struct be_adapter *adapter, struct be_queue_info *q) -{ - struct be_dma_mem *mem = &q->dma_mem; - if (mem->va) - dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va, - mem->dma); -} - -static int be_queue_alloc(struct be_adapter *adapter, struct be_queue_info *q, - u16 len, u16 entry_size) -{ - struct be_dma_mem *mem = &q->dma_mem; - - memset(q, 0, sizeof(*q)); - q->len = len; - q->entry_size = entry_size; - mem->size = len * entry_size; - mem->va = dma_alloc_coherent(&adapter->pdev->dev, mem->size, &mem->dma, - GFP_KERNEL); - if (!mem->va) - return -1; - memset(mem->va, 0, mem->size); - return 0; -} - -static void be_intr_set(struct be_adapter *adapter, bool enable) -{ - u8 __iomem *addr = adapter->pcicfg + PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET; - u32 reg = ioread32(addr); - u32 enabled = reg & MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK; - - if (adapter->eeh_err) - return; - - if (!enabled && enable) - reg |= MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK; - else if (enabled && !enable) - reg &= ~MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK; - else - return; - - iowrite32(reg, addr); -} - -static void be_rxq_notify(struct be_adapter *adapter, u16 qid, u16 posted) -{ - u32 val = 0; - val |= qid & DB_RQ_RING_ID_MASK; - val |= posted << DB_RQ_NUM_POSTED_SHIFT; - - wmb(); - iowrite32(val, adapter->db + DB_RQ_OFFSET); -} - -static void be_txq_notify(struct be_adapter *adapter, u16 qid, u16 posted) -{ - u32 val = 0; - val |= qid & DB_TXULP_RING_ID_MASK; - val |= (posted & DB_TXULP_NUM_POSTED_MASK) << DB_TXULP_NUM_POSTED_SHIFT; - - wmb(); - iowrite32(val, adapter->db + DB_TXULP1_OFFSET); -} - -static void be_eq_notify(struct be_adapter *adapter, u16 qid, - bool arm, bool clear_int, u16 num_popped) -{ - u32 val = 0; - val |= qid & DB_EQ_RING_ID_MASK; - val |= ((qid & DB_EQ_RING_ID_EXT_MASK) << - DB_EQ_RING_ID_EXT_MASK_SHIFT); - - if (adapter->eeh_err) - return; - - if (arm) - val |= 1 << DB_EQ_REARM_SHIFT; - if (clear_int) - val |= 1 << DB_EQ_CLR_SHIFT; - val |= 1 << DB_EQ_EVNT_SHIFT; - val |= num_popped << DB_EQ_NUM_POPPED_SHIFT; - iowrite32(val, adapter->db + DB_EQ_OFFSET); -} - -void be_cq_notify(struct be_adapter *adapter, u16 qid, bool arm, u16 num_popped) -{ - u32 val = 0; - val |= qid & DB_CQ_RING_ID_MASK; - val |= ((qid & DB_CQ_RING_ID_EXT_MASK) << - DB_CQ_RING_ID_EXT_MASK_SHIFT); - - if (adapter->eeh_err) - return; - - if (arm) - val |= 1 << DB_CQ_REARM_SHIFT; - val |= num_popped << DB_CQ_NUM_POPPED_SHIFT; - iowrite32(val, adapter->db + DB_CQ_OFFSET); -} - -static int be_mac_addr_set(struct net_device *netdev, void *p) -{ - struct be_adapter *adapter = netdev_priv(netdev); - struct sockaddr *addr = p; - int status = 0; - - if (!is_valid_ether_addr(addr->sa_data)) - return -EADDRNOTAVAIL; - - /* MAC addr configuration will be done in hardware for VFs - * by their corresponding PFs. Just copy to netdev addr here - */ - if (!be_physfn(adapter)) - goto netdev_addr; - - status = be_cmd_pmac_del(adapter, adapter->if_handle, - adapter->pmac_id, 0); - if (status) - return status; - - status = be_cmd_pmac_add(adapter, (u8 *)addr->sa_data, - adapter->if_handle, &adapter->pmac_id, 0); -netdev_addr: - if (!status) - memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); - - return status; -} - -static void populate_be2_stats(struct be_adapter *adapter) -{ - struct be_hw_stats_v0 *hw_stats = hw_stats_from_cmd(adapter); - struct be_pmem_stats *pmem_sts = &hw_stats->pmem; - struct be_rxf_stats_v0 *rxf_stats = &hw_stats->rxf; - struct be_port_rxf_stats_v0 *port_stats = - &rxf_stats->port[adapter->port_num]; - struct be_drv_stats *drvs = &adapter->drv_stats; - - be_dws_le_to_cpu(hw_stats, sizeof(*hw_stats)); - drvs->rx_pause_frames = port_stats->rx_pause_frames; - drvs->rx_crc_errors = port_stats->rx_crc_errors; - drvs->rx_control_frames = port_stats->rx_control_frames; - drvs->rx_in_range_errors = port_stats->rx_in_range_errors; - drvs->rx_frame_too_long = port_stats->rx_frame_too_long; - drvs->rx_dropped_runt = port_stats->rx_dropped_runt; - drvs->rx_ip_checksum_errs = port_stats->rx_ip_checksum_errs; - drvs->rx_tcp_checksum_errs = port_stats->rx_tcp_checksum_errs; - drvs->rx_udp_checksum_errs = port_stats->rx_udp_checksum_errs; - drvs->rxpp_fifo_overflow_drop = port_stats->rx_fifo_overflow; - drvs->rx_dropped_tcp_length = port_stats->rx_dropped_tcp_length; - drvs->rx_dropped_too_small = port_stats->rx_dropped_too_small; - drvs->rx_dropped_too_short = port_stats->rx_dropped_too_short; - drvs->rx_out_range_errors = port_stats->rx_out_range_errors; - drvs->rx_input_fifo_overflow_drop = port_stats->rx_input_fifo_overflow; - drvs->rx_dropped_header_too_small = - port_stats->rx_dropped_header_too_small; - drvs->rx_address_match_errors = port_stats->rx_address_match_errors; - drvs->rx_alignment_symbol_errors = - port_stats->rx_alignment_symbol_errors; - - drvs->tx_pauseframes = port_stats->tx_pauseframes; - drvs->tx_controlframes = port_stats->tx_controlframes; - - if (adapter->port_num) - drvs->jabber_events = rxf_stats->port1_jabber_events; - else - drvs->jabber_events = rxf_stats->port0_jabber_events; - drvs->rx_drops_no_pbuf = rxf_stats->rx_drops_no_pbuf; - drvs->rx_drops_no_txpb = rxf_stats->rx_drops_no_txpb; - drvs->rx_drops_no_erx_descr = rxf_stats->rx_drops_no_erx_descr; - drvs->rx_drops_invalid_ring = rxf_stats->rx_drops_invalid_ring; - drvs->forwarded_packets = rxf_stats->forwarded_packets; - drvs->rx_drops_mtu = rxf_stats->rx_drops_mtu; - drvs->rx_drops_no_tpre_descr = rxf_stats->rx_drops_no_tpre_descr; - drvs->rx_drops_too_many_frags = rxf_stats->rx_drops_too_many_frags; - adapter->drv_stats.eth_red_drops = pmem_sts->eth_red_drops; -} - -static void populate_be3_stats(struct be_adapter *adapter) -{ - struct be_hw_stats_v1 *hw_stats = hw_stats_from_cmd(adapter); - struct be_pmem_stats *pmem_sts = &hw_stats->pmem; - struct be_rxf_stats_v1 *rxf_stats = &hw_stats->rxf; - struct be_port_rxf_stats_v1 *port_stats = - &rxf_stats->port[adapter->port_num]; - struct be_drv_stats *drvs = &adapter->drv_stats; - - be_dws_le_to_cpu(hw_stats, sizeof(*hw_stats)); - drvs->rx_pause_frames = port_stats->rx_pause_frames; - drvs->rx_crc_errors = port_stats->rx_crc_errors; - drvs->rx_control_frames = port_stats->rx_control_frames; - drvs->rx_in_range_errors = port_stats->rx_in_range_errors; - drvs->rx_frame_too_long = port_stats->rx_frame_too_long; - drvs->rx_dropped_runt = port_stats->rx_dropped_runt; - drvs->rx_ip_checksum_errs = port_stats->rx_ip_checksum_errs; - drvs->rx_tcp_checksum_errs = port_stats->rx_tcp_checksum_errs; - drvs->rx_udp_checksum_errs = port_stats->rx_udp_checksum_errs; - drvs->rx_dropped_tcp_length = port_stats->rx_dropped_tcp_length; - drvs->rx_dropped_too_small = port_stats->rx_dropped_too_small; - drvs->rx_dropped_too_short = port_stats->rx_dropped_too_short; - drvs->rx_out_range_errors = port_stats->rx_out_range_errors; - drvs->rx_dropped_header_too_small = - port_stats->rx_dropped_header_too_small; - drvs->rx_input_fifo_overflow_drop = - port_stats->rx_input_fifo_overflow_drop; - drvs->rx_address_match_errors = port_stats->rx_address_match_errors; - drvs->rx_alignment_symbol_errors = - port_stats->rx_alignment_symbol_errors; - drvs->rxpp_fifo_overflow_drop = port_stats->rxpp_fifo_overflow_drop; - drvs->tx_pauseframes = port_stats->tx_pauseframes; - drvs->tx_controlframes = port_stats->tx_controlframes; - drvs->jabber_events = port_stats->jabber_events; - drvs->rx_drops_no_pbuf = rxf_stats->rx_drops_no_pbuf; - drvs->rx_drops_no_txpb = rxf_stats->rx_drops_no_txpb; - drvs->rx_drops_no_erx_descr = rxf_stats->rx_drops_no_erx_descr; - drvs->rx_drops_invalid_ring = rxf_stats->rx_drops_invalid_ring; - drvs->forwarded_packets = rxf_stats->forwarded_packets; - drvs->rx_drops_mtu = rxf_stats->rx_drops_mtu; - drvs->rx_drops_no_tpre_descr = rxf_stats->rx_drops_no_tpre_descr; - drvs->rx_drops_too_many_frags = rxf_stats->rx_drops_too_many_frags; - adapter->drv_stats.eth_red_drops = pmem_sts->eth_red_drops; -} - -static void populate_lancer_stats(struct be_adapter *adapter) -{ - - struct be_drv_stats *drvs = &adapter->drv_stats; - struct lancer_pport_stats *pport_stats = - pport_stats_from_cmd(adapter); - - be_dws_le_to_cpu(pport_stats, sizeof(*pport_stats)); - drvs->rx_pause_frames = pport_stats->rx_pause_frames_lo; - drvs->rx_crc_errors = pport_stats->rx_crc_errors_lo; - drvs->rx_control_frames = pport_stats->rx_control_frames_lo; - drvs->rx_in_range_errors = pport_stats->rx_in_range_errors; - drvs->rx_frame_too_long = pport_stats->rx_frames_too_long_lo; - drvs->rx_dropped_runt = pport_stats->rx_dropped_runt; - drvs->rx_ip_checksum_errs = pport_stats->rx_ip_checksum_errors; - drvs->rx_tcp_checksum_errs = pport_stats->rx_tcp_checksum_errors; - drvs->rx_udp_checksum_errs = pport_stats->rx_udp_checksum_errors; - drvs->rx_dropped_tcp_length = - pport_stats->rx_dropped_invalid_tcp_length; - drvs->rx_dropped_too_small = pport_stats->rx_dropped_too_small; - drvs->rx_dropped_too_short = pport_stats->rx_dropped_too_short; - drvs->rx_out_range_errors = pport_stats->rx_out_of_range_errors; - drvs->rx_dropped_header_too_small = - pport_stats->rx_dropped_header_too_small; - drvs->rx_input_fifo_overflow_drop = pport_stats->rx_fifo_overflow; - drvs->rx_address_match_errors = pport_stats->rx_address_match_errors; - drvs->rx_alignment_symbol_errors = pport_stats->rx_symbol_errors_lo; - drvs->rxpp_fifo_overflow_drop = pport_stats->rx_fifo_overflow; - drvs->tx_pauseframes = pport_stats->tx_pause_frames_lo; - drvs->tx_controlframes = pport_stats->tx_control_frames_lo; - drvs->jabber_events = pport_stats->rx_jabbers; - drvs->rx_drops_invalid_ring = pport_stats->rx_drops_invalid_queue; - drvs->forwarded_packets = pport_stats->num_forwards_lo; - drvs->rx_drops_mtu = pport_stats->rx_drops_mtu_lo; - drvs->rx_drops_too_many_frags = - pport_stats->rx_drops_too_many_frags_lo; -} - -void be_parse_stats(struct be_adapter *adapter) -{ - struct be_erx_stats_v1 *erx = be_erx_stats_from_cmd(adapter); - struct be_rx_obj *rxo; - int i; - - if (adapter->generation == BE_GEN3) { - if (lancer_chip(adapter)) - populate_lancer_stats(adapter); - else - populate_be3_stats(adapter); - } else { - populate_be2_stats(adapter); - } - - /* as erx_v1 is longer than v0, ok to use v1 defn for v0 access */ - for_all_rx_queues(adapter, rxo, i) - rx_stats(rxo)->rx_drops_no_frags = - erx->rx_drops_no_fragments[rxo->q.id]; -} - -static struct rtnl_link_stats64 *be_get_stats64(struct net_device *netdev, - struct rtnl_link_stats64 *stats) -{ - struct be_adapter *adapter = netdev_priv(netdev); - struct be_drv_stats *drvs = &adapter->drv_stats; - struct be_rx_obj *rxo; - struct be_tx_obj *txo; - u64 pkts, bytes; - unsigned int start; - int i; - - for_all_rx_queues(adapter, rxo, i) { - const struct be_rx_stats *rx_stats = rx_stats(rxo); - do { - start = u64_stats_fetch_begin_bh(&rx_stats->sync); - pkts = rx_stats(rxo)->rx_pkts; - bytes = rx_stats(rxo)->rx_bytes; - } while (u64_stats_fetch_retry_bh(&rx_stats->sync, start)); - stats->rx_packets += pkts; - stats->rx_bytes += bytes; - stats->multicast += rx_stats(rxo)->rx_mcast_pkts; - stats->rx_dropped += rx_stats(rxo)->rx_drops_no_skbs + - rx_stats(rxo)->rx_drops_no_frags; - } - - for_all_tx_queues(adapter, txo, i) { - const struct be_tx_stats *tx_stats = tx_stats(txo); - do { - start = u64_stats_fetch_begin_bh(&tx_stats->sync); - pkts = tx_stats(txo)->tx_pkts; - bytes = tx_stats(txo)->tx_bytes; - } while (u64_stats_fetch_retry_bh(&tx_stats->sync, start)); - stats->tx_packets += pkts; - stats->tx_bytes += bytes; - } - - /* bad pkts received */ - stats->rx_errors = drvs->rx_crc_errors + - drvs->rx_alignment_symbol_errors + - drvs->rx_in_range_errors + - drvs->rx_out_range_errors + - drvs->rx_frame_too_long + - drvs->rx_dropped_too_small + - drvs->rx_dropped_too_short + - drvs->rx_dropped_header_too_small + - drvs->rx_dropped_tcp_length + - drvs->rx_dropped_runt; - - /* detailed rx errors */ - stats->rx_length_errors = drvs->rx_in_range_errors + - drvs->rx_out_range_errors + - drvs->rx_frame_too_long; - - stats->rx_crc_errors = drvs->rx_crc_errors; - - /* frame alignment errors */ - stats->rx_frame_errors = drvs->rx_alignment_symbol_errors; - - /* receiver fifo overrun */ - /* drops_no_pbuf is no per i/f, it's per BE card */ - stats->rx_fifo_errors = drvs->rxpp_fifo_overflow_drop + - drvs->rx_input_fifo_overflow_drop + - drvs->rx_drops_no_pbuf; - return stats; -} - -void be_link_status_update(struct be_adapter *adapter, u32 link_status) -{ - struct net_device *netdev = adapter->netdev; - - /* when link status changes, link speed must be re-queried from card */ - adapter->link_speed = -1; - if ((link_status & LINK_STATUS_MASK) == LINK_UP) { - netif_carrier_on(netdev); - dev_info(&adapter->pdev->dev, "%s: Link up\n", netdev->name); - } else { - netif_carrier_off(netdev); - dev_info(&adapter->pdev->dev, "%s: Link down\n", netdev->name); - } -} - -static void be_tx_stats_update(struct be_tx_obj *txo, - u32 wrb_cnt, u32 copied, u32 gso_segs, bool stopped) -{ - struct be_tx_stats *stats = tx_stats(txo); - - u64_stats_update_begin(&stats->sync); - stats->tx_reqs++; - stats->tx_wrbs += wrb_cnt; - stats->tx_bytes += copied; - stats->tx_pkts += (gso_segs ? gso_segs : 1); - if (stopped) - stats->tx_stops++; - u64_stats_update_end(&stats->sync); -} - -/* Determine number of WRB entries needed to xmit data in an skb */ -static u32 wrb_cnt_for_skb(struct be_adapter *adapter, struct sk_buff *skb, - bool *dummy) -{ - int cnt = (skb->len > skb->data_len); - - cnt += skb_shinfo(skb)->nr_frags; - - /* to account for hdr wrb */ - cnt++; - if (lancer_chip(adapter) || !(cnt & 1)) { - *dummy = false; - } else { - /* add a dummy to make it an even num */ - cnt++; - *dummy = true; - } - BUG_ON(cnt > BE_MAX_TX_FRAG_COUNT); - return cnt; -} - -static inline void wrb_fill(struct be_eth_wrb *wrb, u64 addr, int len) -{ - wrb->frag_pa_hi = upper_32_bits(addr); - wrb->frag_pa_lo = addr & 0xFFFFFFFF; - wrb->frag_len = len & ETH_WRB_FRAG_LEN_MASK; -} - -static void wrb_fill_hdr(struct be_adapter *adapter, struct be_eth_hdr_wrb *hdr, - struct sk_buff *skb, u32 wrb_cnt, u32 len) -{ - u8 vlan_prio = 0; - u16 vlan_tag = 0; - - memset(hdr, 0, sizeof(*hdr)); - - AMAP_SET_BITS(struct amap_eth_hdr_wrb, crc, hdr, 1); - - if (skb_is_gso(skb)) { - AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso, hdr, 1); - AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso_mss, - hdr, skb_shinfo(skb)->gso_size); - if (skb_is_gso_v6(skb) && !lancer_chip(adapter)) - AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso6, hdr, 1); - if (lancer_chip(adapter) && adapter->sli_family == - LANCER_A0_SLI_FAMILY) { - AMAP_SET_BITS(struct amap_eth_hdr_wrb, ipcs, hdr, 1); - if (is_tcp_pkt(skb)) - AMAP_SET_BITS(struct amap_eth_hdr_wrb, - tcpcs, hdr, 1); - else if (is_udp_pkt(skb)) - AMAP_SET_BITS(struct amap_eth_hdr_wrb, - udpcs, hdr, 1); - } - } else if (skb->ip_summed == CHECKSUM_PARTIAL) { - if (is_tcp_pkt(skb)) - AMAP_SET_BITS(struct amap_eth_hdr_wrb, tcpcs, hdr, 1); - else if (is_udp_pkt(skb)) - AMAP_SET_BITS(struct amap_eth_hdr_wrb, udpcs, hdr, 1); - } - - if (vlan_tx_tag_present(skb)) { - AMAP_SET_BITS(struct amap_eth_hdr_wrb, vlan, hdr, 1); - vlan_tag = vlan_tx_tag_get(skb); - vlan_prio = (vlan_tag & VLAN_PRIO_MASK) >> VLAN_PRIO_SHIFT; - /* If vlan priority provided by OS is NOT in available bmap */ - if (!(adapter->vlan_prio_bmap & (1 << vlan_prio))) - vlan_tag = (vlan_tag & ~VLAN_PRIO_MASK) | - adapter->recommended_prio; - AMAP_SET_BITS(struct amap_eth_hdr_wrb, vlan_tag, hdr, vlan_tag); - } - - AMAP_SET_BITS(struct amap_eth_hdr_wrb, event, hdr, 1); - AMAP_SET_BITS(struct amap_eth_hdr_wrb, complete, hdr, 1); - AMAP_SET_BITS(struct amap_eth_hdr_wrb, num_wrb, hdr, wrb_cnt); - AMAP_SET_BITS(struct amap_eth_hdr_wrb, len, hdr, len); -} - -static void unmap_tx_frag(struct device *dev, struct be_eth_wrb *wrb, - bool unmap_single) -{ - dma_addr_t dma; - - be_dws_le_to_cpu(wrb, sizeof(*wrb)); - - dma = (u64)wrb->frag_pa_hi << 32 | (u64)wrb->frag_pa_lo; - if (wrb->frag_len) { - if (unmap_single) - dma_unmap_single(dev, dma, wrb->frag_len, - DMA_TO_DEVICE); - else - dma_unmap_page(dev, dma, wrb->frag_len, DMA_TO_DEVICE); - } -} - -static int make_tx_wrbs(struct be_adapter *adapter, struct be_queue_info *txq, - struct sk_buff *skb, u32 wrb_cnt, bool dummy_wrb) -{ - dma_addr_t busaddr; - int i, copied = 0; - struct device *dev = &adapter->pdev->dev; - struct sk_buff *first_skb = skb; - struct be_eth_wrb *wrb; - struct be_eth_hdr_wrb *hdr; - bool map_single = false; - u16 map_head; - - hdr = queue_head_node(txq); - queue_head_inc(txq); - map_head = txq->head; - - if (skb->len > skb->data_len) { - int len = skb_headlen(skb); - busaddr = dma_map_single(dev, skb->data, len, DMA_TO_DEVICE); - if (dma_mapping_error(dev, busaddr)) - goto dma_err; - map_single = true; - wrb = queue_head_node(txq); - wrb_fill(wrb, busaddr, len); - be_dws_cpu_to_le(wrb, sizeof(*wrb)); - queue_head_inc(txq); - copied += len; - } - - for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { - struct skb_frag_struct *frag = - &skb_shinfo(skb)->frags[i]; - busaddr = dma_map_page(dev, frag->page, frag->page_offset, - frag->size, DMA_TO_DEVICE); - if (dma_mapping_error(dev, busaddr)) - goto dma_err; - wrb = queue_head_node(txq); - wrb_fill(wrb, busaddr, frag->size); - be_dws_cpu_to_le(wrb, sizeof(*wrb)); - queue_head_inc(txq); - copied += frag->size; - } - - if (dummy_wrb) { - wrb = queue_head_node(txq); - wrb_fill(wrb, 0, 0); - be_dws_cpu_to_le(wrb, sizeof(*wrb)); - queue_head_inc(txq); - } - - wrb_fill_hdr(adapter, hdr, first_skb, wrb_cnt, copied); - be_dws_cpu_to_le(hdr, sizeof(*hdr)); - - return copied; -dma_err: - txq->head = map_head; - while (copied) { - wrb = queue_head_node(txq); - unmap_tx_frag(dev, wrb, map_single); - map_single = false; - copied -= wrb->frag_len; - queue_head_inc(txq); - } - return 0; -} - -static netdev_tx_t be_xmit(struct sk_buff *skb, - struct net_device *netdev) -{ - struct be_adapter *adapter = netdev_priv(netdev); - struct be_tx_obj *txo = &adapter->tx_obj[skb_get_queue_mapping(skb)]; - struct be_queue_info *txq = &txo->q; - u32 wrb_cnt = 0, copied = 0; - u32 start = txq->head; - bool dummy_wrb, stopped = false; - - wrb_cnt = wrb_cnt_for_skb(adapter, skb, &dummy_wrb); - - copied = make_tx_wrbs(adapter, txq, skb, wrb_cnt, dummy_wrb); - if (copied) { - /* record the sent skb in the sent_skb table */ - BUG_ON(txo->sent_skb_list[start]); - txo->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_subqueue(netdev, skb_get_queue_mapping(skb)); - stopped = true; - } - - be_txq_notify(adapter, txq->id, wrb_cnt); - - be_tx_stats_update(txo, wrb_cnt, copied, - skb_shinfo(skb)->gso_segs, stopped); - } else { - txq->head = start; - dev_kfree_skb_any(skb); - } - return NETDEV_TX_OK; -} - -static int be_change_mtu(struct net_device *netdev, int new_mtu) -{ - struct be_adapter *adapter = netdev_priv(netdev); - if (new_mtu < BE_MIN_MTU || - new_mtu > (BE_MAX_JUMBO_FRAME_SIZE - - (ETH_HLEN + ETH_FCS_LEN))) { - dev_info(&adapter->pdev->dev, - "MTU must be between %d and %d bytes\n", - BE_MIN_MTU, - (BE_MAX_JUMBO_FRAME_SIZE - (ETH_HLEN + ETH_FCS_LEN))); - return -EINVAL; - } - dev_info(&adapter->pdev->dev, "MTU changed from %d to %d bytes\n", - netdev->mtu, new_mtu); - netdev->mtu = new_mtu; - return 0; -} - -/* - * A max of 64 (BE_NUM_VLANS_SUPPORTED) vlans can be configured in BE. - * If the user configures more, place BE in vlan promiscuous mode. - */ -static int be_vid_config(struct be_adapter *adapter, bool vf, u32 vf_num) -{ - u16 vtag[BE_NUM_VLANS_SUPPORTED]; - u16 ntags = 0, i; - int status = 0; - u32 if_handle; - - if (vf) { - if_handle = adapter->vf_cfg[vf_num].vf_if_handle; - vtag[0] = cpu_to_le16(adapter->vf_cfg[vf_num].vf_vlan_tag); - status = be_cmd_vlan_config(adapter, if_handle, vtag, 1, 1, 0); - } - - /* No need to further configure vids if in promiscuous mode */ - if (adapter->promiscuous) - return 0; - - if (adapter->vlans_added <= adapter->max_vlans) { - /* Construct VLAN Table to give to HW */ - for (i = 0; i < VLAN_N_VID; i++) { - if (adapter->vlan_tag[i]) { - vtag[ntags] = cpu_to_le16(i); - ntags++; - } - } - status = be_cmd_vlan_config(adapter, adapter->if_handle, - vtag, ntags, 1, 0); - } else { - status = be_cmd_vlan_config(adapter, adapter->if_handle, - NULL, 0, 1, 1); - } - - return status; -} - -static void be_vlan_add_vid(struct net_device *netdev, u16 vid) -{ - struct be_adapter *adapter = netdev_priv(netdev); - - adapter->vlans_added++; - if (!be_physfn(adapter)) - return; - - adapter->vlan_tag[vid] = 1; - if (adapter->vlans_added <= (adapter->max_vlans + 1)) - be_vid_config(adapter, false, 0); -} - -static void be_vlan_rem_vid(struct net_device *netdev, u16 vid) -{ - struct be_adapter *adapter = netdev_priv(netdev); - - adapter->vlans_added--; - - if (!be_physfn(adapter)) - return; - - adapter->vlan_tag[vid] = 0; - if (adapter->vlans_added <= adapter->max_vlans) - be_vid_config(adapter, false, 0); -} - -static void be_set_multicast_list(struct net_device *netdev) -{ - struct be_adapter *adapter = netdev_priv(netdev); - - if (netdev->flags & IFF_PROMISC) { - be_cmd_rx_filter(adapter, IFF_PROMISC, ON); - adapter->promiscuous = true; - goto done; - } - - /* BE was previously in promiscuous mode; disable it */ - if (adapter->promiscuous) { - adapter->promiscuous = false; - be_cmd_rx_filter(adapter, IFF_PROMISC, OFF); - - if (adapter->vlans_added) - be_vid_config(adapter, false, 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_rx_filter(adapter, IFF_ALLMULTI, ON); - goto done; - } - - be_cmd_rx_filter(adapter, IFF_MULTICAST, ON); -done: - return; -} - -static int be_set_vf_mac(struct net_device *netdev, int vf, u8 *mac) -{ - struct be_adapter *adapter = netdev_priv(netdev); - int status; - - if (!adapter->sriov_enabled) - return -EPERM; - - if (!is_valid_ether_addr(mac) || (vf >= num_vfs)) - return -EINVAL; - - if (adapter->vf_cfg[vf].vf_pmac_id != BE_INVALID_PMAC_ID) - status = be_cmd_pmac_del(adapter, - adapter->vf_cfg[vf].vf_if_handle, - adapter->vf_cfg[vf].vf_pmac_id, vf + 1); - - status = be_cmd_pmac_add(adapter, mac, - adapter->vf_cfg[vf].vf_if_handle, - &adapter->vf_cfg[vf].vf_pmac_id, vf + 1); - - if (status) - dev_err(&adapter->pdev->dev, "MAC %pM set on VF %d Failed\n", - mac, vf); - else - memcpy(adapter->vf_cfg[vf].vf_mac_addr, mac, ETH_ALEN); - - return status; -} - -static int be_get_vf_config(struct net_device *netdev, int vf, - struct ifla_vf_info *vi) -{ - struct be_adapter *adapter = netdev_priv(netdev); - - if (!adapter->sriov_enabled) - return -EPERM; - - if (vf >= num_vfs) - return -EINVAL; - - vi->vf = vf; - vi->tx_rate = adapter->vf_cfg[vf].vf_tx_rate; - vi->vlan = adapter->vf_cfg[vf].vf_vlan_tag; - vi->qos = 0; - memcpy(&vi->mac, adapter->vf_cfg[vf].vf_mac_addr, ETH_ALEN); - - return 0; -} - -static int be_set_vf_vlan(struct net_device *netdev, - int vf, u16 vlan, u8 qos) -{ - struct be_adapter *adapter = netdev_priv(netdev); - int status = 0; - - if (!adapter->sriov_enabled) - return -EPERM; - - if ((vf >= num_vfs) || (vlan > 4095)) - return -EINVAL; - - if (vlan) { - adapter->vf_cfg[vf].vf_vlan_tag = vlan; - adapter->vlans_added++; - } else { - adapter->vf_cfg[vf].vf_vlan_tag = 0; - adapter->vlans_added--; - } - - status = be_vid_config(adapter, true, vf); - - if (status) - dev_info(&adapter->pdev->dev, - "VLAN %d config on VF %d failed\n", vlan, vf); - return status; -} - -static int be_set_vf_tx_rate(struct net_device *netdev, - int vf, int rate) -{ - struct be_adapter *adapter = netdev_priv(netdev); - int status = 0; - - if (!adapter->sriov_enabled) - return -EPERM; - - if ((vf >= num_vfs) || (rate < 0)) - return -EINVAL; - - if (rate > 10000) - rate = 10000; - - adapter->vf_cfg[vf].vf_tx_rate = rate; - status = be_cmd_set_qos(adapter, rate / 10, vf + 1); - - if (status) - dev_info(&adapter->pdev->dev, - "tx rate %d on VF %d failed\n", rate, vf); - return status; -} - -static void be_rx_eqd_update(struct be_adapter *adapter, struct be_rx_obj *rxo) -{ - struct be_eq_obj *rx_eq = &rxo->rx_eq; - struct be_rx_stats *stats = rx_stats(rxo); - ulong now = jiffies; - ulong delta = now - stats->rx_jiffies; - u64 pkts; - unsigned int start, eqd; - - if (!rx_eq->enable_aic) - return; - - /* Wrapped around */ - if (time_before(now, stats->rx_jiffies)) { - stats->rx_jiffies = now; - return; - } - - /* Update once a second */ - if (delta < HZ) - return; - - do { - start = u64_stats_fetch_begin_bh(&stats->sync); - pkts = stats->rx_pkts; - } while (u64_stats_fetch_retry_bh(&stats->sync, start)); - - stats->rx_pps = (pkts - stats->rx_pkts_prev) / (delta / HZ); - stats->rx_pkts_prev = pkts; - stats->rx_jiffies = now; - eqd = stats->rx_pps / 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 void be_rx_stats_update(struct be_rx_obj *rxo, - struct be_rx_compl_info *rxcp) -{ - struct be_rx_stats *stats = rx_stats(rxo); - - u64_stats_update_begin(&stats->sync); - stats->rx_compl++; - stats->rx_bytes += rxcp->pkt_size; - stats->rx_pkts++; - if (rxcp->pkt_type == BE_MULTICAST_PACKET) - stats->rx_mcast_pkts++; - if (rxcp->err) - stats->rx_compl_err++; - u64_stats_update_end(&stats->sync); -} - -static inline bool csum_passed(struct be_rx_compl_info *rxcp) -{ - /* L4 checksum is not reliable for non TCP/UDP packets. - * Also ignore ipcksm for ipv6 pkts */ - return (rxcp->tcpf || rxcp->udpf) && rxcp->l4_csum && - (rxcp->ip_csum || rxcp->ipv6); -} - -static struct be_rx_page_info * -get_rx_page_info(struct be_adapter *adapter, - struct be_rx_obj *rxo, - u16 frag_idx) -{ - struct be_rx_page_info *rx_page_info; - struct be_queue_info *rxq = &rxo->q; - - rx_page_info = &rxo->page_info_tbl[frag_idx]; - BUG_ON(!rx_page_info->page); - - if (rx_page_info->last_page_user) { - dma_unmap_page(&adapter->pdev->dev, - dma_unmap_addr(rx_page_info, bus), - adapter->big_page_size, DMA_FROM_DEVICE); - rx_page_info->last_page_user = false; - } - - atomic_dec(&rxq->used); - return rx_page_info; -} - -/* Throwaway the data in the Rx completion */ -static void be_rx_compl_discard(struct be_adapter *adapter, - struct be_rx_obj *rxo, - struct be_rx_compl_info *rxcp) -{ - struct be_queue_info *rxq = &rxo->q; - struct be_rx_page_info *page_info; - u16 i, num_rcvd = rxcp->num_rcvd; - - for (i = 0; i < num_rcvd; i++) { - page_info = get_rx_page_info(adapter, rxo, rxcp->rxq_idx); - put_page(page_info->page); - memset(page_info, 0, sizeof(*page_info)); - index_inc(&rxcp->rxq_idx, rxq->len); - } -} - -/* - * skb_fill_rx_data forms a complete skb for an ether frame - * indicated by rxcp. - */ -static void skb_fill_rx_data(struct be_adapter *adapter, struct be_rx_obj *rxo, - struct sk_buff *skb, struct be_rx_compl_info *rxcp) -{ - struct be_queue_info *rxq = &rxo->q; - struct be_rx_page_info *page_info; - u16 i, j; - u16 hdr_len, curr_frag_len, remaining; - u8 *start; - - page_info = get_rx_page_info(adapter, rxo, rxcp->rxq_idx); - start = page_address(page_info->page) + page_info->page_offset; - prefetch(start); - - /* Copy data in the first descriptor of this completion */ - curr_frag_len = min(rxcp->pkt_size, rx_frag_size); - - /* Copy the header portion into skb_data */ - hdr_len = min(BE_HDR_LEN, curr_frag_len); - memcpy(skb->data, start, hdr_len); - skb->len = curr_frag_len; - if (curr_frag_len <= BE_HDR_LEN) { /* tiny packet */ - /* Complete packet has now been moved to data */ - put_page(page_info->page); - skb->data_len = 0; - skb->tail += curr_frag_len; - } else { - skb_shinfo(skb)->nr_frags = 1; - skb_shinfo(skb)->frags[0].page = page_info->page; - skb_shinfo(skb)->frags[0].page_offset = - page_info->page_offset + hdr_len; - skb_shinfo(skb)->frags[0].size = curr_frag_len - hdr_len; - skb->data_len = curr_frag_len - hdr_len; - skb->tail += hdr_len; - } - page_info->page = NULL; - - if (rxcp->pkt_size <= rx_frag_size) { - BUG_ON(rxcp->num_rcvd != 1); - return; - } - - /* More frags present for this completion */ - index_inc(&rxcp->rxq_idx, rxq->len); - remaining = rxcp->pkt_size - curr_frag_len; - for (i = 1, j = 0; i < rxcp->num_rcvd; i++) { - page_info = get_rx_page_info(adapter, rxo, rxcp->rxq_idx); - curr_frag_len = min(remaining, rx_frag_size); - - /* Coalesce all frags from the same physical page in one slot */ - if (page_info->page_offset == 0) { - /* Fresh page */ - j++; - skb_shinfo(skb)->frags[j].page = page_info->page; - skb_shinfo(skb)->frags[j].page_offset = - page_info->page_offset; - skb_shinfo(skb)->frags[j].size = 0; - skb_shinfo(skb)->nr_frags++; - } else { - put_page(page_info->page); - } - - skb_shinfo(skb)->frags[j].size += curr_frag_len; - skb->len += curr_frag_len; - skb->data_len += curr_frag_len; - - remaining -= curr_frag_len; - index_inc(&rxcp->rxq_idx, rxq->len); - page_info->page = NULL; - } - BUG_ON(j > MAX_SKB_FRAGS); -} - -/* Process the RX completion indicated by rxcp when GRO is disabled */ -static void be_rx_compl_process(struct be_adapter *adapter, - struct be_rx_obj *rxo, - struct be_rx_compl_info *rxcp) -{ - struct net_device *netdev = adapter->netdev; - struct sk_buff *skb; - - skb = netdev_alloc_skb_ip_align(netdev, BE_HDR_LEN); - if (unlikely(!skb)) { - rx_stats(rxo)->rx_drops_no_skbs++; - be_rx_compl_discard(adapter, rxo, rxcp); - return; - } - - skb_fill_rx_data(adapter, rxo, skb, rxcp); - - if (likely((netdev->features & NETIF_F_RXCSUM) && csum_passed(rxcp))) - skb->ip_summed = CHECKSUM_UNNECESSARY; - else - skb_checksum_none_assert(skb); - - skb->truesize = skb->len + sizeof(struct sk_buff); - skb->protocol = eth_type_trans(skb, netdev); - if (adapter->netdev->features & NETIF_F_RXHASH) - skb->rxhash = rxcp->rss_hash; - - - if (unlikely(rxcp->vlanf)) - __vlan_hwaccel_put_tag(skb, rxcp->vlan_tag); - - netif_receive_skb(skb); -} - -/* Process the RX completion indicated by rxcp when GRO is enabled */ -static void be_rx_compl_process_gro(struct be_adapter *adapter, - struct be_rx_obj *rxo, - struct be_rx_compl_info *rxcp) -{ - struct be_rx_page_info *page_info; - struct sk_buff *skb = NULL; - struct be_queue_info *rxq = &rxo->q; - struct be_eq_obj *eq_obj = &rxo->rx_eq; - u16 remaining, curr_frag_len; - u16 i, j; - - skb = napi_get_frags(&eq_obj->napi); - if (!skb) { - be_rx_compl_discard(adapter, rxo, rxcp); - return; - } - - remaining = rxcp->pkt_size; - for (i = 0, j = -1; i < rxcp->num_rcvd; i++) { - page_info = get_rx_page_info(adapter, rxo, rxcp->rxq_idx); - - curr_frag_len = min(remaining, rx_frag_size); - - /* Coalesce all frags from the same physical page in one slot */ - if (i == 0 || page_info->page_offset == 0) { - /* First frag or Fresh page */ - j++; - skb_shinfo(skb)->frags[j].page = page_info->page; - skb_shinfo(skb)->frags[j].page_offset = - page_info->page_offset; - skb_shinfo(skb)->frags[j].size = 0; - } else { - put_page(page_info->page); - } - skb_shinfo(skb)->frags[j].size += curr_frag_len; - - remaining -= curr_frag_len; - index_inc(&rxcp->rxq_idx, rxq->len); - memset(page_info, 0, sizeof(*page_info)); - } - BUG_ON(j > MAX_SKB_FRAGS); - - skb_shinfo(skb)->nr_frags = j + 1; - skb->len = rxcp->pkt_size; - skb->data_len = rxcp->pkt_size; - skb->truesize += rxcp->pkt_size; - skb->ip_summed = CHECKSUM_UNNECESSARY; - if (adapter->netdev->features & NETIF_F_RXHASH) - skb->rxhash = rxcp->rss_hash; - - if (unlikely(rxcp->vlanf)) - __vlan_hwaccel_put_tag(skb, rxcp->vlan_tag); - - napi_gro_frags(&eq_obj->napi); -} - -static void be_parse_rx_compl_v1(struct be_adapter *adapter, - struct be_eth_rx_compl *compl, - struct be_rx_compl_info *rxcp) -{ - rxcp->pkt_size = - AMAP_GET_BITS(struct amap_eth_rx_compl_v1, pktsize, compl); - rxcp->vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vtp, compl); - rxcp->err = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, err, compl); - rxcp->tcpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, tcpf, compl); - rxcp->udpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, udpf, compl); - rxcp->ip_csum = - AMAP_GET_BITS(struct amap_eth_rx_compl_v1, ipcksm, compl); - rxcp->l4_csum = - AMAP_GET_BITS(struct amap_eth_rx_compl_v1, l4_cksm, compl); - rxcp->ipv6 = - AMAP_GET_BITS(struct amap_eth_rx_compl_v1, ip_version, compl); - rxcp->rxq_idx = - AMAP_GET_BITS(struct amap_eth_rx_compl_v1, fragndx, compl); - rxcp->num_rcvd = - AMAP_GET_BITS(struct amap_eth_rx_compl_v1, numfrags, compl); - rxcp->pkt_type = - AMAP_GET_BITS(struct amap_eth_rx_compl_v1, cast_enc, compl); - rxcp->rss_hash = - AMAP_GET_BITS(struct amap_eth_rx_compl_v1, rsshash, rxcp); - if (rxcp->vlanf) { - rxcp->vtm = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vtm, - compl); - rxcp->vlan_tag = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vlan_tag, - compl); - } - rxcp->port = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, port, compl); -} - -static void be_parse_rx_compl_v0(struct be_adapter *adapter, - struct be_eth_rx_compl *compl, - struct be_rx_compl_info *rxcp) -{ - rxcp->pkt_size = - AMAP_GET_BITS(struct amap_eth_rx_compl_v0, pktsize, compl); - rxcp->vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vtp, compl); - rxcp->err = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, err, compl); - rxcp->tcpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, tcpf, compl); - rxcp->udpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, udpf, compl); - rxcp->ip_csum = - AMAP_GET_BITS(struct amap_eth_rx_compl_v0, ipcksm, compl); - rxcp->l4_csum = - AMAP_GET_BITS(struct amap_eth_rx_compl_v0, l4_cksm, compl); - rxcp->ipv6 = - AMAP_GET_BITS(struct amap_eth_rx_compl_v0, ip_version, compl); - rxcp->rxq_idx = - AMAP_GET_BITS(struct amap_eth_rx_compl_v0, fragndx, compl); - rxcp->num_rcvd = - AMAP_GET_BITS(struct amap_eth_rx_compl_v0, numfrags, compl); - rxcp->pkt_type = - AMAP_GET_BITS(struct amap_eth_rx_compl_v0, cast_enc, compl); - rxcp->rss_hash = - AMAP_GET_BITS(struct amap_eth_rx_compl_v0, rsshash, rxcp); - if (rxcp->vlanf) { - rxcp->vtm = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vtm, - compl); - rxcp->vlan_tag = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vlan_tag, - compl); - } - rxcp->port = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, port, compl); -} - -static struct be_rx_compl_info *be_rx_compl_get(struct be_rx_obj *rxo) -{ - struct be_eth_rx_compl *compl = queue_tail_node(&rxo->cq); - struct be_rx_compl_info *rxcp = &rxo->rxcp; - struct be_adapter *adapter = rxo->adapter; - - /* For checking the valid bit it is Ok to use either definition as the - * valid bit is at the same position in both v0 and v1 Rx compl */ - if (compl->dw[offsetof(struct amap_eth_rx_compl_v1, valid) / 32] == 0) - return NULL; - - rmb(); - be_dws_le_to_cpu(compl, sizeof(*compl)); - - if (adapter->be3_native) - be_parse_rx_compl_v1(adapter, compl, rxcp); - else - be_parse_rx_compl_v0(adapter, compl, rxcp); - - if (rxcp->vlanf) { - /* vlanf could be wrongly set in some cards. - * ignore if vtm is not set */ - if ((adapter->function_mode & 0x400) && !rxcp->vtm) - rxcp->vlanf = 0; - - if (!lancer_chip(adapter)) - rxcp->vlan_tag = swab16(rxcp->vlan_tag); - - if (((adapter->pvid & VLAN_VID_MASK) == - (rxcp->vlan_tag & VLAN_VID_MASK)) && - !adapter->vlan_tag[rxcp->vlan_tag]) - rxcp->vlanf = 0; - } - - /* As the compl has been parsed, reset it; we wont touch it again */ - compl->dw[offsetof(struct amap_eth_rx_compl_v1, valid) / 32] = 0; - - queue_tail_inc(&rxo->cq); - return rxcp; -} - -static inline struct page *be_alloc_pages(u32 size, gfp_t gfp) -{ - u32 order = get_order(size); - - if (order > 0) - gfp |= __GFP_COMP; - return alloc_pages(gfp, order); -} - -/* - * Allocate a page, split it to fragments of size rx_frag_size and post as - * receive buffers to BE - */ -static void be_post_rx_frags(struct be_rx_obj *rxo, gfp_t gfp) -{ - struct be_adapter *adapter = rxo->adapter; - struct be_rx_page_info *page_info_tbl = rxo->page_info_tbl; - struct be_rx_page_info *page_info = NULL, *prev_page_info = NULL; - struct be_queue_info *rxq = &rxo->q; - struct page *pagep = NULL; - struct be_eth_rx_d *rxd; - u64 page_dmaaddr = 0, frag_dmaaddr; - u32 posted, page_offset = 0; - - page_info = &rxo->page_info_tbl[rxq->head]; - for (posted = 0; posted < MAX_RX_POST && !page_info->page; posted++) { - if (!pagep) { - pagep = be_alloc_pages(adapter->big_page_size, gfp); - if (unlikely(!pagep)) { - rx_stats(rxo)->rx_post_fail++; - break; - } - page_dmaaddr = dma_map_page(&adapter->pdev->dev, pagep, - 0, adapter->big_page_size, - DMA_FROM_DEVICE); - page_info->page_offset = 0; - } else { - get_page(pagep); - page_info->page_offset = page_offset + rx_frag_size; - } - page_offset = page_info->page_offset; - page_info->page = pagep; - dma_unmap_addr_set(page_info, bus, page_dmaaddr); - frag_dmaaddr = page_dmaaddr + page_info->page_offset; - - rxd = queue_head_node(rxq); - rxd->fragpa_lo = cpu_to_le32(frag_dmaaddr & 0xFFFFFFFF); - rxd->fragpa_hi = cpu_to_le32(upper_32_bits(frag_dmaaddr)); - - /* Any space left in the current big page for another frag? */ - if ((page_offset + rx_frag_size + rx_frag_size) > - adapter->big_page_size) { - pagep = NULL; - page_info->last_page_user = true; - } - - prev_page_info = page_info; - queue_head_inc(rxq); - page_info = &page_info_tbl[rxq->head]; - } - if (pagep) - prev_page_info->last_page_user = true; - - if (posted) { - atomic_add(posted, &rxq->used); - be_rxq_notify(adapter, rxq->id, posted); - } else if (atomic_read(&rxq->used) == 0) { - /* Let be_worker replenish when memory is available */ - rxo->rx_post_starved = true; - } -} - -static struct be_eth_tx_compl *be_tx_compl_get(struct be_queue_info *tx_cq) -{ - struct be_eth_tx_compl *txcp = queue_tail_node(tx_cq); - - if (txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] == 0) - return NULL; - - rmb(); - be_dws_le_to_cpu(txcp, sizeof(*txcp)); - - txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] = 0; - - queue_tail_inc(tx_cq); - return txcp; -} - -static u16 be_tx_compl_process(struct be_adapter *adapter, - struct be_tx_obj *txo, u16 last_index) -{ - struct be_queue_info *txq = &txo->q; - struct be_eth_wrb *wrb; - struct sk_buff **sent_skbs = txo->sent_skb_list; - struct sk_buff *sent_skb; - u16 cur_index, num_wrbs = 1; /* account for hdr wrb */ - bool unmap_skb_hdr = true; - - sent_skb = sent_skbs[txq->tail]; - BUG_ON(!sent_skb); - sent_skbs[txq->tail] = NULL; - - /* skip header wrb */ - queue_tail_inc(txq); - - do { - cur_index = txq->tail; - wrb = queue_tail_node(txq); - unmap_tx_frag(&adapter->pdev->dev, wrb, - (unmap_skb_hdr && skb_headlen(sent_skb))); - unmap_skb_hdr = false; - - num_wrbs++; - queue_tail_inc(txq); - } while (cur_index != last_index); - - kfree_skb(sent_skb); - return num_wrbs; -} - -static inline struct be_eq_entry *event_get(struct be_eq_obj *eq_obj) -{ - struct be_eq_entry *eqe = queue_tail_node(&eq_obj->q); - - if (!eqe->evt) - return NULL; - - rmb(); - eqe->evt = le32_to_cpu(eqe->evt); - queue_tail_inc(&eq_obj->q); - return eqe; -} - -static int event_handle(struct be_adapter *adapter, - struct be_eq_obj *eq_obj, - bool rearm) -{ - 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 - */ - if (!num) - rearm = true; - - be_eq_notify(adapter, eq_obj->q.id, rearm, true, num); - if (num) - napi_schedule(&eq_obj->napi); - - return num; -} - -/* Just read and notify events without processing them. - * Used at the time of destroying event queues */ -static void be_eq_clean(struct be_adapter *adapter, - struct be_eq_obj *eq_obj) -{ - struct be_eq_entry *eqe; - u16 num = 0; - - while ((eqe = event_get(eq_obj)) != NULL) { - eqe->evt = 0; - num++; - } - - if (num) - be_eq_notify(adapter, eq_obj->q.id, false, true, num); -} - -static void be_rx_q_clean(struct be_adapter *adapter, struct be_rx_obj *rxo) -{ - struct be_rx_page_info *page_info; - struct be_queue_info *rxq = &rxo->q; - struct be_queue_info *rx_cq = &rxo->cq; - struct be_rx_compl_info *rxcp; - u16 tail; - - /* First cleanup pending rx completions */ - while ((rxcp = be_rx_compl_get(rxo)) != NULL) { - be_rx_compl_discard(adapter, rxo, rxcp); - be_cq_notify(adapter, rx_cq->id, false, 1); - } - - /* Then free posted rx buffer that were not used */ - tail = (rxq->head + rxq->len - atomic_read(&rxq->used)) % rxq->len; - for (; atomic_read(&rxq->used) > 0; index_inc(&tail, rxq->len)) { - page_info = get_rx_page_info(adapter, rxo, tail); - put_page(page_info->page); - memset(page_info, 0, sizeof(*page_info)); - } - BUG_ON(atomic_read(&rxq->used)); - rxq->tail = rxq->head = 0; -} - -static void be_tx_compl_clean(struct be_adapter *adapter, - struct be_tx_obj *txo) -{ - struct be_queue_info *tx_cq = &txo->cq; - struct be_queue_info *txq = &txo->q; - struct be_eth_tx_compl *txcp; - u16 end_idx, cmpl = 0, timeo = 0, num_wrbs = 0; - struct sk_buff **sent_skbs = txo->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); - num_wrbs += be_tx_compl_process(adapter, txo, end_idx); - cmpl++; - } - if (cmpl) { - be_cq_notify(adapter, tx_cq->id, false, cmpl); - atomic_sub(num_wrbs, &txq->used); - cmpl = 0; - num_wrbs = 0; - } - - if (atomic_read(&txq->used) == 0 || ++timeo > 200) - break; - - mdelay(1); - } while (true); - - if (atomic_read(&txq->used)) - dev_err(&adapter->pdev->dev, "%d pending tx-completions\n", - atomic_read(&txq->used)); - - /* free posted tx for which compls will never arrive */ - while (atomic_read(&txq->used)) { - sent_skb = sent_skbs[txq->tail]; - end_idx = txq->tail; - index_adv(&end_idx, - wrb_cnt_for_skb(adapter, sent_skb, &dummy_wrb) - 1, - txq->len); - num_wrbs = be_tx_compl_process(adapter, txo, end_idx); - atomic_sub(num_wrbs, &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; - struct be_tx_obj *txo; - u8 i; - - for_all_tx_queues(adapter, txo, i) { - q = &txo->q; - if (q->created) - be_cmd_q_destroy(adapter, q, QTYPE_TXQ); - be_queue_free(adapter, q); - - q = &txo->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); -} - -/* One TX event queue is shared by all TX compl qs */ -static int be_tx_queues_create(struct be_adapter *adapter) -{ - struct be_queue_info *eq, *q, *cq; - struct be_tx_obj *txo; - u8 i; - - adapter->tx_eq.max_eqd = 0; - adapter->tx_eq.min_eqd = 0; - adapter->tx_eq.cur_eqd = 96; - adapter->tx_eq.enable_aic = false; - - eq = &adapter->tx_eq.q; - if (be_queue_alloc(adapter, eq, EVNT_Q_LEN, - sizeof(struct be_eq_entry))) - return -1; - - if (be_cmd_eq_create(adapter, eq, adapter->tx_eq.cur_eqd)) - goto err; - adapter->tx_eq.eq_idx = adapter->eq_next_idx++; - - for_all_tx_queues(adapter, txo, i) { - cq = &txo->cq; - if (be_queue_alloc(adapter, cq, TX_CQ_LEN, - sizeof(struct be_eth_tx_compl))) - goto err; - - if (be_cmd_cq_create(adapter, cq, eq, false, false, 3)) - goto err; - - q = &txo->q; - if (be_queue_alloc(adapter, q, TX_Q_LEN, - sizeof(struct be_eth_wrb))) - goto err; - - if (be_cmd_txq_create(adapter, q, cq)) - goto err; - } - return 0; - -err: - be_tx_queues_destroy(adapter); - return -1; -} - -static void be_rx_queues_destroy(struct be_adapter *adapter) -{ - struct be_queue_info *q; - struct be_rx_obj *rxo; - int i; - - for_all_rx_queues(adapter, rxo, i) { - be_queue_free(adapter, &rxo->q); - - q = &rxo->cq; - if (q->created) - be_cmd_q_destroy(adapter, q, QTYPE_CQ); - be_queue_free(adapter, q); - - q = &rxo->rx_eq.q; - if (q->created) - be_cmd_q_destroy(adapter, q, QTYPE_EQ); - be_queue_free(adapter, q); - } -} - -static u32 be_num_rxqs_want(struct be_adapter *adapter) -{ - if ((adapter->function_caps & BE_FUNCTION_CAPS_RSS) && - !adapter->sriov_enabled && !(adapter->function_mode & 0x400)) { - return 1 + MAX_RSS_QS; /* one default non-RSS queue */ - } else { - dev_warn(&adapter->pdev->dev, - "No support for multiple RX queues\n"); - return 1; - } -} - -static int be_rx_queues_create(struct be_adapter *adapter) -{ - struct be_queue_info *eq, *q, *cq; - struct be_rx_obj *rxo; - int rc, i; - - adapter->num_rx_qs = min(be_num_rxqs_want(adapter), - msix_enabled(adapter) ? - adapter->num_msix_vec - 1 : 1); - if (adapter->num_rx_qs != MAX_RX_QS) - dev_warn(&adapter->pdev->dev, - "Can create only %d RX queues", adapter->num_rx_qs); - - adapter->big_page_size = (1 << get_order(rx_frag_size)) * PAGE_SIZE; - for_all_rx_queues(adapter, rxo, i) { - rxo->adapter = adapter; - rxo->rx_eq.max_eqd = BE_MAX_EQD; - rxo->rx_eq.enable_aic = true; - - /* EQ */ - eq = &rxo->rx_eq.q; - rc = be_queue_alloc(adapter, eq, EVNT_Q_LEN, - sizeof(struct be_eq_entry)); - if (rc) - goto err; - - rc = be_cmd_eq_create(adapter, eq, rxo->rx_eq.cur_eqd); - if (rc) - goto err; - - rxo->rx_eq.eq_idx = adapter->eq_next_idx++; - - /* CQ */ - cq = &rxo->cq; - rc = be_queue_alloc(adapter, cq, RX_CQ_LEN, - sizeof(struct be_eth_rx_compl)); - if (rc) - goto err; - - rc = be_cmd_cq_create(adapter, cq, eq, false, false, 3); - if (rc) - goto err; - - /* Rx Q - will be created in be_open() */ - q = &rxo->q; - rc = be_queue_alloc(adapter, q, RX_Q_LEN, - sizeof(struct be_eth_rx_d)); - if (rc) - goto err; - - } - - return 0; -err: - be_rx_queues_destroy(adapter); - return -1; -} - -static bool event_peek(struct be_eq_obj *eq_obj) -{ - struct be_eq_entry *eqe = queue_tail_node(&eq_obj->q); - if (!eqe->evt) - return false; - else - return true; -} - -static irqreturn_t be_intx(int irq, void *dev) -{ - struct be_adapter *adapter = dev; - struct be_rx_obj *rxo; - int isr, i, tx = 0 , rx = 0; - - if (lancer_chip(adapter)) { - if (event_peek(&adapter->tx_eq)) - tx = event_handle(adapter, &adapter->tx_eq, false); - for_all_rx_queues(adapter, rxo, i) { - if (event_peek(&rxo->rx_eq)) - rx |= event_handle(adapter, &rxo->rx_eq, true); - } - - if (!(tx || rx)) - return IRQ_NONE; - - } else { - isr = ioread32(adapter->csr + CEV_ISR0_OFFSET + - (adapter->tx_eq.q.id / 8) * CEV_ISR_SIZE); - if (!isr) - return IRQ_NONE; - - if ((1 << adapter->tx_eq.eq_idx & isr)) - event_handle(adapter, &adapter->tx_eq, false); - - for_all_rx_queues(adapter, rxo, i) { - if ((1 << rxo->rx_eq.eq_idx & isr)) - event_handle(adapter, &rxo->rx_eq, true); - } - } - - return IRQ_HANDLED; -} - -static irqreturn_t be_msix_rx(int irq, void *dev) -{ - struct be_rx_obj *rxo = dev; - struct be_adapter *adapter = rxo->adapter; - - event_handle(adapter, &rxo->rx_eq, true); - - 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, false); - - return IRQ_HANDLED; -} - -static inline bool do_gro(struct be_rx_compl_info *rxcp) -{ - return (rxcp->tcpf && !rxcp->err) ? true : false; -} - -static int be_poll_rx(struct napi_struct *napi, int budget) -{ - struct be_eq_obj *rx_eq = container_of(napi, struct be_eq_obj, napi); - struct be_rx_obj *rxo = container_of(rx_eq, struct be_rx_obj, rx_eq); - struct be_adapter *adapter = rxo->adapter; - struct be_queue_info *rx_cq = &rxo->cq; - struct be_rx_compl_info *rxcp; - u32 work_done; - - rx_stats(rxo)->rx_polls++; - for (work_done = 0; work_done < budget; work_done++) { - rxcp = be_rx_compl_get(rxo); - if (!rxcp) - break; - - /* Is it a flush compl that has no data */ - if (unlikely(rxcp->num_rcvd == 0)) - goto loop_continue; - - /* Discard compl with partial DMA Lancer B0 */ - if (unlikely(!rxcp->pkt_size)) { - be_rx_compl_discard(adapter, rxo, rxcp); - goto loop_continue; - } - - /* On BE drop pkts that arrive due to imperfect filtering in - * promiscuous mode on some skews - */ - if (unlikely(rxcp->port != adapter->port_num && - !lancer_chip(adapter))) { - be_rx_compl_discard(adapter, rxo, rxcp); - goto loop_continue; - } - - if (do_gro(rxcp)) - be_rx_compl_process_gro(adapter, rxo, rxcp); - else - be_rx_compl_process(adapter, rxo, rxcp); -loop_continue: - be_rx_stats_update(rxo, rxcp); - } - - /* Refill the queue */ - if (atomic_read(&rxo->q.used) < RX_FRAGS_REFILL_WM) - be_post_rx_frags(rxo, GFP_ATOMIC); - - /* All consumed */ - if (work_done < budget) { - napi_complete(napi); - be_cq_notify(adapter, rx_cq->id, true, work_done); - } else { - /* More to be consumed; continue with interrupts disabled */ - be_cq_notify(adapter, rx_cq->id, false, work_done); - } - return work_done; -} - -/* As TX and MCC share the same EQ check for both TX and MCC completions. - * For TX/MCC we don't honour budget; consume everything - */ -static int be_poll_tx_mcc(struct napi_struct *napi, int budget) -{ - struct be_eq_obj *tx_eq = container_of(napi, struct be_eq_obj, napi); - struct be_adapter *adapter = - container_of(tx_eq, struct be_adapter, tx_eq); - struct be_tx_obj *txo; - struct be_eth_tx_compl *txcp; - int tx_compl, mcc_compl, status = 0; - u8 i; - u16 num_wrbs; - - for_all_tx_queues(adapter, txo, i) { - tx_compl = 0; - num_wrbs = 0; - while ((txcp = be_tx_compl_get(&txo->cq))) { - num_wrbs += be_tx_compl_process(adapter, txo, - AMAP_GET_BITS(struct amap_eth_tx_compl, - wrb_index, txcp)); - tx_compl++; - } - if (tx_compl) { - be_cq_notify(adapter, txo->cq.id, true, tx_compl); - - atomic_sub(num_wrbs, &txo->q.used); - - /* As Tx wrbs have been freed up, wake up netdev queue - * if it was stopped due to lack of tx wrbs. */ - if (__netif_subqueue_stopped(adapter->netdev, i) && - atomic_read(&txo->q.used) < txo->q.len / 2) { - netif_wake_subqueue(adapter->netdev, i); - } - - u64_stats_update_begin(&tx_stats(txo)->sync_compl); - tx_stats(txo)->tx_compl += tx_compl; - u64_stats_update_end(&tx_stats(txo)->sync_compl); - } - } - - mcc_compl = be_process_mcc(adapter, &status); - - if (mcc_compl) { - struct be_mcc_obj *mcc_obj = &adapter->mcc_obj; - be_cq_notify(adapter, mcc_obj->cq.id, true, mcc_compl); - } - - napi_complete(napi); - - be_eq_notify(adapter, tx_eq->q.id, true, false, 0); - adapter->drv_stats.tx_events++; - return 1; -} - -void be_detect_dump_ue(struct be_adapter *adapter) -{ - u32 ue_status_lo, ue_status_hi, ue_status_lo_mask, ue_status_hi_mask; - u32 i; - - pci_read_config_dword(adapter->pdev, - PCICFG_UE_STATUS_LOW, &ue_status_lo); - pci_read_config_dword(adapter->pdev, - PCICFG_UE_STATUS_HIGH, &ue_status_hi); - pci_read_config_dword(adapter->pdev, - PCICFG_UE_STATUS_LOW_MASK, &ue_status_lo_mask); - pci_read_config_dword(adapter->pdev, - PCICFG_UE_STATUS_HI_MASK, &ue_status_hi_mask); - - ue_status_lo = (ue_status_lo & (~ue_status_lo_mask)); - ue_status_hi = (ue_status_hi & (~ue_status_hi_mask)); - - if (ue_status_lo || ue_status_hi) { - adapter->ue_detected = true; - adapter->eeh_err = true; - dev_err(&adapter->pdev->dev, "UE Detected!!\n"); - } - - if (ue_status_lo) { - for (i = 0; ue_status_lo; ue_status_lo >>= 1, i++) { - if (ue_status_lo & 1) - dev_err(&adapter->pdev->dev, - "UE: %s bit set\n", ue_status_low_desc[i]); - } - } - if (ue_status_hi) { - for (i = 0; ue_status_hi; ue_status_hi >>= 1, i++) { - if (ue_status_hi & 1) - dev_err(&adapter->pdev->dev, - "UE: %s bit set\n", ue_status_hi_desc[i]); - } - } - -} - -static void be_worker(struct work_struct *work) -{ - struct be_adapter *adapter = - container_of(work, struct be_adapter, work.work); - struct be_rx_obj *rxo; - int i; - - if (!adapter->ue_detected && !lancer_chip(adapter)) - be_detect_dump_ue(adapter); - - /* when interrupts are not yet enabled, just reap any pending - * mcc completions */ - if (!netif_running(adapter->netdev)) { - int mcc_compl, status = 0; - - mcc_compl = be_process_mcc(adapter, &status); - - if (mcc_compl) { - struct be_mcc_obj *mcc_obj = &adapter->mcc_obj; - be_cq_notify(adapter, mcc_obj->cq.id, false, mcc_compl); - } - - goto reschedule; - } - - if (!adapter->stats_cmd_sent) { - if (lancer_chip(adapter)) - lancer_cmd_get_pport_stats(adapter, - &adapter->stats_cmd); - else - be_cmd_get_stats(adapter, &adapter->stats_cmd); - } - - for_all_rx_queues(adapter, rxo, i) { - be_rx_eqd_update(adapter, rxo); - - if (rxo->rx_post_starved) { - rxo->rx_post_starved = false; - be_post_rx_frags(rxo, GFP_KERNEL); - } - } - -reschedule: - adapter->work_counter++; - schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000)); -} - -static void be_msix_disable(struct be_adapter *adapter) -{ - if (msix_enabled(adapter)) { - pci_disable_msix(adapter->pdev); - adapter->num_msix_vec = 0; - } -} - -static void be_msix_enable(struct be_adapter *adapter) -{ -#define BE_MIN_MSIX_VECTORS (1 + 1) /* Rx + Tx */ - int i, status, num_vec; - - num_vec = be_num_rxqs_want(adapter) + 1; - - for (i = 0; i < num_vec; i++) - adapter->msix_entries[i].entry = i; - - status = pci_enable_msix(adapter->pdev, adapter->msix_entries, num_vec); - if (status == 0) { - goto done; - } else if (status >= BE_MIN_MSIX_VECTORS) { - num_vec = status; - if (pci_enable_msix(adapter->pdev, adapter->msix_entries, - num_vec) == 0) - goto done; - } - return; -done: - adapter->num_msix_vec = num_vec; - return; -} - -static void be_sriov_enable(struct be_adapter *adapter) -{ - be_check_sriov_fn_type(adapter); -#ifdef CONFIG_PCI_IOV - if (be_physfn(adapter) && num_vfs) { - int status, pos; - u16 nvfs; - - pos = pci_find_ext_capability(adapter->pdev, - PCI_EXT_CAP_ID_SRIOV); - pci_read_config_word(adapter->pdev, - pos + PCI_SRIOV_TOTAL_VF, &nvfs); - - if (num_vfs > nvfs) { - dev_info(&adapter->pdev->dev, - "Device supports %d VFs and not %d\n", - nvfs, num_vfs); - num_vfs = nvfs; - } - - status = pci_enable_sriov(adapter->pdev, num_vfs); - adapter->sriov_enabled = status ? false : true; - } -#endif -} - -static void be_sriov_disable(struct be_adapter *adapter) -{ -#ifdef CONFIG_PCI_IOV - if (adapter->sriov_enabled) { - pci_disable_sriov(adapter->pdev); - adapter->sriov_enabled = false; - } -#endif -} - -static inline int be_msix_vec_get(struct be_adapter *adapter, - struct be_eq_obj *eq_obj) -{ - return adapter->msix_entries[eq_obj->eq_idx].vector; -} - -static int be_request_irq(struct be_adapter *adapter, - struct be_eq_obj *eq_obj, - void *handler, char *desc, void *context) -{ - struct net_device *netdev = adapter->netdev; - int vec; - - sprintf(eq_obj->desc, "%s-%s", netdev->name, desc); - vec = be_msix_vec_get(adapter, eq_obj); - return request_irq(vec, handler, 0, eq_obj->desc, context); -} - -static void be_free_irq(struct be_adapter *adapter, struct be_eq_obj *eq_obj, - void *context) -{ - int vec = be_msix_vec_get(adapter, eq_obj); - free_irq(vec, context); -} - -static int be_msix_register(struct be_adapter *adapter) -{ - struct be_rx_obj *rxo; - int status, i; - char qname[10]; - - status = be_request_irq(adapter, &adapter->tx_eq, be_msix_tx_mcc, "tx", - adapter); - if (status) - goto err; - - for_all_rx_queues(adapter, rxo, i) { - sprintf(qname, "rxq%d", i); - status = be_request_irq(adapter, &rxo->rx_eq, be_msix_rx, - qname, rxo); - if (status) - goto err_msix; - } - - return 0; - -err_msix: - be_free_irq(adapter, &adapter->tx_eq, adapter); - - for (i--, rxo = &adapter->rx_obj[i]; i >= 0; i--, rxo--) - be_free_irq(adapter, &rxo->rx_eq, rxo); - -err: - dev_warn(&adapter->pdev->dev, - "MSIX Request IRQ failed - err %d\n", status); - be_msix_disable(adapter); - return status; -} - -static int be_irq_register(struct be_adapter *adapter) -{ - struct net_device *netdev = adapter->netdev; - int status; - - if (msix_enabled(adapter)) { - status = be_msix_register(adapter); - if (status == 0) - goto done; - /* INTx is not supported for VF */ - if (!be_physfn(adapter)) - return status; - } - - /* INTx */ - netdev->irq = adapter->pdev->irq; - status = request_irq(netdev->irq, be_intx, IRQF_SHARED, netdev->name, - adapter); - if (status) { - dev_err(&adapter->pdev->dev, - "INTx request IRQ failed - err %d\n", status); - return status; - } -done: - adapter->isr_registered = true; - return 0; -} - -static void be_irq_unregister(struct be_adapter *adapter) -{ - struct net_device *netdev = adapter->netdev; - struct be_rx_obj *rxo; - int i; - - if (!adapter->isr_registered) - return; - - /* INTx */ - if (!msix_enabled(adapter)) { - free_irq(netdev->irq, adapter); - goto done; - } - - /* MSIx */ - be_free_irq(adapter, &adapter->tx_eq, adapter); - - for_all_rx_queues(adapter, rxo, i) - be_free_irq(adapter, &rxo->rx_eq, rxo); - -done: - adapter->isr_registered = false; -} - -static void be_rx_queues_clear(struct be_adapter *adapter) -{ - struct be_queue_info *q; - struct be_rx_obj *rxo; - int i; - - for_all_rx_queues(adapter, rxo, i) { - q = &rxo->q; - if (q->created) { - be_cmd_rxq_destroy(adapter, q); - /* After the rxq is invalidated, wait for a grace time - * of 1ms for all dma to end and the flush compl to - * arrive - */ - mdelay(1); - be_rx_q_clean(adapter, rxo); - } - - /* Clear any residual events */ - q = &rxo->rx_eq.q; - if (q->created) - be_eq_clean(adapter, &rxo->rx_eq); - } -} - -static int be_close(struct net_device *netdev) -{ - struct be_adapter *adapter = netdev_priv(netdev); - struct be_rx_obj *rxo; - struct be_tx_obj *txo; - struct be_eq_obj *tx_eq = &adapter->tx_eq; - int vec, i; - - be_async_mcc_disable(adapter); - - if (!lancer_chip(adapter)) - be_intr_set(adapter, false); - - for_all_rx_queues(adapter, rxo, i) - napi_disable(&rxo->rx_eq.napi); - - napi_disable(&tx_eq->napi); - - if (lancer_chip(adapter)) { - be_cq_notify(adapter, adapter->mcc_obj.cq.id, false, 0); - for_all_rx_queues(adapter, rxo, i) - be_cq_notify(adapter, rxo->cq.id, false, 0); - for_all_tx_queues(adapter, txo, i) - be_cq_notify(adapter, txo->cq.id, false, 0); - } - - if (msix_enabled(adapter)) { - vec = be_msix_vec_get(adapter, tx_eq); - synchronize_irq(vec); - - for_all_rx_queues(adapter, rxo, i) { - vec = be_msix_vec_get(adapter, &rxo->rx_eq); - synchronize_irq(vec); - } - } else { - synchronize_irq(netdev->irq); - } - be_irq_unregister(adapter); - - /* Wait for all pending tx completions to arrive so that - * all tx skbs are freed. - */ - for_all_tx_queues(adapter, txo, i) - be_tx_compl_clean(adapter, txo); - - be_rx_queues_clear(adapter); - return 0; -} - -static int be_rx_queues_setup(struct be_adapter *adapter) -{ - struct be_rx_obj *rxo; - int rc, i; - u8 rsstable[MAX_RSS_QS]; - - for_all_rx_queues(adapter, rxo, i) { - rc = be_cmd_rxq_create(adapter, &rxo->q, rxo->cq.id, - rx_frag_size, BE_MAX_JUMBO_FRAME_SIZE, - adapter->if_handle, - (i > 0) ? 1 : 0/* rss enable */, &rxo->rss_id); - if (rc) - return rc; - } - - if (be_multi_rxq(adapter)) { - for_all_rss_queues(adapter, rxo, i) - rsstable[i] = rxo->rss_id; - - rc = be_cmd_rss_config(adapter, rsstable, - adapter->num_rx_qs - 1); - if (rc) - return rc; - } - - /* First time posting */ - for_all_rx_queues(adapter, rxo, i) { - be_post_rx_frags(rxo, GFP_KERNEL); - napi_enable(&rxo->rx_eq.napi); - } - return 0; -} - -static int be_open(struct net_device *netdev) -{ - struct be_adapter *adapter = netdev_priv(netdev); - struct be_eq_obj *tx_eq = &adapter->tx_eq; - struct be_rx_obj *rxo; - int status, i; - - status = be_rx_queues_setup(adapter); - if (status) - goto err; - - napi_enable(&tx_eq->napi); - - be_irq_register(adapter); - - if (!lancer_chip(adapter)) - be_intr_set(adapter, true); - - /* The evt queues are created in unarmed state; arm them */ - for_all_rx_queues(adapter, rxo, i) { - be_eq_notify(adapter, rxo->rx_eq.q.id, true, false, 0); - be_cq_notify(adapter, rxo->cq.id, true, 0); - } - be_eq_notify(adapter, tx_eq->q.id, true, false, 0); - - /* Now that interrupts are on we can process async mcc */ - be_async_mcc_enable(adapter); - - if (be_physfn(adapter)) { - status = be_vid_config(adapter, false, 0); - if (status) - goto err; - - status = be_cmd_set_flow_control(adapter, - adapter->tx_fc, adapter->rx_fc); - if (status) - goto err; - } - - return 0; -err: - be_close(adapter->netdev); - return -EIO; -} - -static int be_setup_wol(struct be_adapter *adapter, bool enable) -{ - struct be_dma_mem cmd; - int status = 0; - u8 mac[ETH_ALEN]; - - memset(mac, 0, ETH_ALEN); - - cmd.size = sizeof(struct be_cmd_req_acpi_wol_magic_config); - cmd.va = dma_alloc_coherent(&adapter->pdev->dev, cmd.size, &cmd.dma, - GFP_KERNEL); - if (cmd.va == NULL) - return -1; - memset(cmd.va, 0, cmd.size); - - if (enable) { - status = pci_write_config_dword(adapter->pdev, - PCICFG_PM_CONTROL_OFFSET, PCICFG_PM_CONTROL_MASK); - if (status) { - dev_err(&adapter->pdev->dev, - "Could not enable Wake-on-lan\n"); - dma_free_coherent(&adapter->pdev->dev, cmd.size, cmd.va, - cmd.dma); - return status; - } - status = be_cmd_enable_magic_wol(adapter, - adapter->netdev->dev_addr, &cmd); - pci_enable_wake(adapter->pdev, PCI_D3hot, 1); - pci_enable_wake(adapter->pdev, PCI_D3cold, 1); - } else { - status = be_cmd_enable_magic_wol(adapter, mac, &cmd); - pci_enable_wake(adapter->pdev, PCI_D3hot, 0); - pci_enable_wake(adapter->pdev, PCI_D3cold, 0); - } - - dma_free_coherent(&adapter->pdev->dev, cmd.size, cmd.va, cmd.dma); - return status; -} - -/* - * Generate a seed MAC address from the PF MAC Address using jhash. - * MAC Address for VFs are assigned incrementally starting from the seed. - * These addresses are programmed in the ASIC by the PF and the VF driver - * queries for the MAC address during its probe. - */ -static inline int be_vf_eth_addr_config(struct be_adapter *adapter) -{ - u32 vf = 0; - int status = 0; - u8 mac[ETH_ALEN]; - - be_vf_eth_addr_generate(adapter, mac); - - for (vf = 0; vf < num_vfs; vf++) { - status = be_cmd_pmac_add(adapter, mac, - adapter->vf_cfg[vf].vf_if_handle, - &adapter->vf_cfg[vf].vf_pmac_id, - vf + 1); - if (status) - dev_err(&adapter->pdev->dev, - "Mac address add failed for VF %d\n", vf); - else - memcpy(adapter->vf_cfg[vf].vf_mac_addr, mac, ETH_ALEN); - - mac[5] += 1; - } - return status; -} - -static inline void be_vf_eth_addr_rem(struct be_adapter *adapter) -{ - u32 vf; - - for (vf = 0; vf < num_vfs; vf++) { - if (adapter->vf_cfg[vf].vf_pmac_id != BE_INVALID_PMAC_ID) - be_cmd_pmac_del(adapter, - adapter->vf_cfg[vf].vf_if_handle, - adapter->vf_cfg[vf].vf_pmac_id, vf + 1); - } -} - -static int be_setup(struct be_adapter *adapter) -{ - struct net_device *netdev = adapter->netdev; - u32 cap_flags, en_flags, vf = 0; - int status; - u8 mac[ETH_ALEN]; - - be_cmd_req_native_mode(adapter); - - cap_flags = en_flags = BE_IF_FLAGS_UNTAGGED | - BE_IF_FLAGS_BROADCAST | - BE_IF_FLAGS_MULTICAST; - - if (be_physfn(adapter)) { - cap_flags |= BE_IF_FLAGS_MCAST_PROMISCUOUS | - BE_IF_FLAGS_PROMISCUOUS | - BE_IF_FLAGS_PASS_L3L4_ERRORS; - en_flags |= BE_IF_FLAGS_PASS_L3L4_ERRORS; - - if (adapter->function_caps & BE_FUNCTION_CAPS_RSS) { - cap_flags |= BE_IF_FLAGS_RSS; - en_flags |= BE_IF_FLAGS_RSS; - } - } - - status = be_cmd_if_create(adapter, cap_flags, en_flags, - netdev->dev_addr, false/* pmac_invalid */, - &adapter->if_handle, &adapter->pmac_id, 0); - if (status != 0) - goto do_none; - - if (be_physfn(adapter)) { - if (adapter->sriov_enabled) { - while (vf < num_vfs) { - cap_flags = en_flags = BE_IF_FLAGS_UNTAGGED | - BE_IF_FLAGS_BROADCAST; - status = be_cmd_if_create(adapter, cap_flags, - en_flags, mac, true, - &adapter->vf_cfg[vf].vf_if_handle, - NULL, vf+1); - if (status) { - dev_err(&adapter->pdev->dev, - "Interface Create failed for VF %d\n", - vf); - goto if_destroy; - } - adapter->vf_cfg[vf].vf_pmac_id = - BE_INVALID_PMAC_ID; - vf++; - } - } - } else { - status = be_cmd_mac_addr_query(adapter, mac, - MAC_ADDRESS_TYPE_NETWORK, false, adapter->if_handle); - if (!status) { - memcpy(adapter->netdev->dev_addr, mac, ETH_ALEN); - memcpy(adapter->netdev->perm_addr, mac, ETH_ALEN); - } - } - - status = be_tx_queues_create(adapter); - if (status != 0) - goto if_destroy; - - status = be_rx_queues_create(adapter); - if (status != 0) - goto tx_qs_destroy; - - /* Allow all priorities by default. A GRP5 evt may modify this */ - adapter->vlan_prio_bmap = 0xff; - - status = be_mcc_queues_create(adapter); - if (status != 0) - goto rx_qs_destroy; - - adapter->link_speed = -1; - - return 0; - -rx_qs_destroy: - be_rx_queues_destroy(adapter); -tx_qs_destroy: - be_tx_queues_destroy(adapter); -if_destroy: - if (be_physfn(adapter) && adapter->sriov_enabled) - for (vf = 0; vf < num_vfs; vf++) - if (adapter->vf_cfg[vf].vf_if_handle) - be_cmd_if_destroy(adapter, - adapter->vf_cfg[vf].vf_if_handle, - vf + 1); - be_cmd_if_destroy(adapter, adapter->if_handle, 0); -do_none: - return status; -} - -static int be_clear(struct be_adapter *adapter) -{ - int vf; - - if (be_physfn(adapter) && adapter->sriov_enabled) - be_vf_eth_addr_rem(adapter); - - be_mcc_queues_destroy(adapter); - be_rx_queues_destroy(adapter); - be_tx_queues_destroy(adapter); - adapter->eq_next_idx = 0; - - if (be_physfn(adapter) && adapter->sriov_enabled) - for (vf = 0; vf < num_vfs; vf++) - if (adapter->vf_cfg[vf].vf_if_handle) - be_cmd_if_destroy(adapter, - adapter->vf_cfg[vf].vf_if_handle, - vf + 1); - - be_cmd_if_destroy(adapter, adapter->if_handle, 0); - - adapter->be3_native = 0; - - /* tell fw we're done with firing cmds */ - be_cmd_fw_clean(adapter); - return 0; -} - - -#define FW_FILE_HDR_SIGN "ServerEngines Corp. " -static bool be_flash_redboot(struct be_adapter *adapter, - const u8 *p, u32 img_start, int image_size, - int hdr_size) -{ - u32 crc_offset; - u8 flashed_crc[4]; - int status; - - crc_offset = hdr_size + img_start + image_size - 4; - - p += crc_offset; - - status = be_cmd_get_flash_crc(adapter, flashed_crc, - (image_size - 4)); - if (status) { - dev_err(&adapter->pdev->dev, - "could not get crc from flash, not flashing redboot\n"); - return false; - } - - /*update redboot only if crc does not match*/ - if (!memcmp(flashed_crc, p, 4)) - return false; - else - return true; -} - -static bool phy_flashing_required(struct be_adapter *adapter) -{ - int status = 0; - struct be_phy_info phy_info; - - status = be_cmd_get_phy_info(adapter, &phy_info); - if (status) - return false; - if ((phy_info.phy_type == TN_8022) && - (phy_info.interface_type == PHY_TYPE_BASET_10GB)) { - return true; - } - return false; -} - -static int be_flash_data(struct be_adapter *adapter, - const struct firmware *fw, - struct be_dma_mem *flash_cmd, int num_of_images) - -{ - int status = 0, i, filehdr_size = 0; - u32 total_bytes = 0, flash_op; - int num_bytes; - const u8 *p = fw->data; - struct be_cmd_write_flashrom *req = flash_cmd->va; - const struct flash_comp *pflashcomp; - int num_comp; - - static const struct flash_comp gen3_flash_types[10] = { - { 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}, - { FLASH_PHY_FW_START_g3, IMG_TYPE_PHY_FW, - FLASH_PHY_FW_IMAGE_MAX_SIZE_g3} - }; - static const struct flash_comp gen2_flash_types[8] = { - { FLASH_iSCSI_PRIMARY_IMAGE_START_g2, IMG_TYPE_ISCSI_ACTIVE, - FLASH_IMAGE_MAX_SIZE_g2}, - { FLASH_REDBOOT_START_g2, IMG_TYPE_REDBOOT, - FLASH_REDBOOT_IMAGE_MAX_SIZE_g2}, - { FLASH_iSCSI_BIOS_START_g2, IMG_TYPE_BIOS, - FLASH_BIOS_IMAGE_MAX_SIZE_g2}, - { FLASH_PXE_BIOS_START_g2, IMG_TYPE_PXE_BIOS, - FLASH_BIOS_IMAGE_MAX_SIZE_g2}, - { FLASH_FCoE_BIOS_START_g2, IMG_TYPE_FCOE_BIOS, - FLASH_BIOS_IMAGE_MAX_SIZE_g2}, - { FLASH_iSCSI_BACKUP_IMAGE_START_g2, IMG_TYPE_ISCSI_BACKUP, - FLASH_IMAGE_MAX_SIZE_g2}, - { FLASH_FCoE_PRIMARY_IMAGE_START_g2, IMG_TYPE_FCOE_FW_ACTIVE, - FLASH_IMAGE_MAX_SIZE_g2}, - { FLASH_FCoE_BACKUP_IMAGE_START_g2, IMG_TYPE_FCOE_FW_BACKUP, - FLASH_IMAGE_MAX_SIZE_g2} - }; - - if (adapter->generation == BE_GEN3) { - pflashcomp = gen3_flash_types; - filehdr_size = sizeof(struct flash_file_hdr_g3); - num_comp = ARRAY_SIZE(gen3_flash_types); - } else { - pflashcomp = gen2_flash_types; - filehdr_size = sizeof(struct flash_file_hdr_g2); - num_comp = ARRAY_SIZE(gen2_flash_types); - } - for (i = 0; i < num_comp; i++) { - if ((pflashcomp[i].optype == IMG_TYPE_NCSI_FW) && - memcmp(adapter->fw_ver, "3.102.148.0", 11) < 0) - continue; - if (pflashcomp[i].optype == IMG_TYPE_PHY_FW) { - if (!phy_flashing_required(adapter)) - continue; - } - if ((pflashcomp[i].optype == IMG_TYPE_REDBOOT) && - (!be_flash_redboot(adapter, fw->data, - pflashcomp[i].offset, pflashcomp[i].size, filehdr_size + - (num_of_images * sizeof(struct image_hdr))))) - continue; - p = fw->data; - p += filehdr_size + pflashcomp[i].offset - + (num_of_images * sizeof(struct image_hdr)); - if (p + pflashcomp[i].size > fw->data + fw->size) - return -1; - total_bytes = pflashcomp[i].size; - while (total_bytes) { - if (total_bytes > 32*1024) - num_bytes = 32*1024; - else - num_bytes = total_bytes; - total_bytes -= num_bytes; - if (!total_bytes) { - if (pflashcomp[i].optype == IMG_TYPE_PHY_FW) - flash_op = FLASHROM_OPER_PHY_FLASH; - else - flash_op = FLASHROM_OPER_FLASH; - } else { - if (pflashcomp[i].optype == IMG_TYPE_PHY_FW) - flash_op = FLASHROM_OPER_PHY_SAVE; - 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) { - if ((status == ILLEGAL_IOCTL_REQ) && - (pflashcomp[i].optype == - IMG_TYPE_PHY_FW)) - break; - dev_err(&adapter->pdev->dev, - "cmd to write to flash rom failed.\n"); - return -1; - } - } - } - 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; -} - -static int lancer_fw_download(struct be_adapter *adapter, - const struct firmware *fw) -{ -#define LANCER_FW_DOWNLOAD_CHUNK (32 * 1024) -#define LANCER_FW_DOWNLOAD_LOCATION "/prg" - struct be_dma_mem flash_cmd; - const u8 *data_ptr = NULL; - u8 *dest_image_ptr = NULL; - size_t image_size = 0; - u32 chunk_size = 0; - u32 data_written = 0; - u32 offset = 0; - int status = 0; - u8 add_status = 0; - - if (!IS_ALIGNED(fw->size, sizeof(u32))) { - dev_err(&adapter->pdev->dev, - "FW Image not properly aligned. " - "Length must be 4 byte aligned.\n"); - status = -EINVAL; - goto lancer_fw_exit; - } - - flash_cmd.size = sizeof(struct lancer_cmd_req_write_object) - + LANCER_FW_DOWNLOAD_CHUNK; - flash_cmd.va = dma_alloc_coherent(&adapter->pdev->dev, flash_cmd.size, - &flash_cmd.dma, GFP_KERNEL); - if (!flash_cmd.va) { - status = -ENOMEM; - dev_err(&adapter->pdev->dev, - "Memory allocation failure while flashing\n"); - goto lancer_fw_exit; - } - - dest_image_ptr = flash_cmd.va + - sizeof(struct lancer_cmd_req_write_object); - image_size = fw->size; - data_ptr = fw->data; - - while (image_size) { - chunk_size = min_t(u32, image_size, LANCER_FW_DOWNLOAD_CHUNK); - - /* Copy the image chunk content. */ - memcpy(dest_image_ptr, data_ptr, chunk_size); - - status = lancer_cmd_write_object(adapter, &flash_cmd, - chunk_size, offset, LANCER_FW_DOWNLOAD_LOCATION, - &data_written, &add_status); - - if (status) - break; - - offset += data_written; - data_ptr += data_written; - image_size -= data_written; - } - - if (!status) { - /* Commit the FW written */ - status = lancer_cmd_write_object(adapter, &flash_cmd, - 0, offset, LANCER_FW_DOWNLOAD_LOCATION, - &data_written, &add_status); - } - - dma_free_coherent(&adapter->pdev->dev, flash_cmd.size, flash_cmd.va, - flash_cmd.dma); - if (status) { - dev_err(&adapter->pdev->dev, - "Firmware load error. " - "Status code: 0x%x Additional Status: 0x%x\n", - status, add_status); - goto lancer_fw_exit; - } - - dev_info(&adapter->pdev->dev, "Firmware flashed successfully\n"); -lancer_fw_exit: - return status; -} - -static int be_fw_download(struct be_adapter *adapter, 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; - const u8 *p; - int status = 0, i = 0, num_imgs = 0; - - p = fw->data; - fhdr = (struct flash_file_hdr_g2 *) p; - - flash_cmd.size = sizeof(struct be_cmd_write_flashrom) + 32*1024; - flash_cmd.va = dma_alloc_coherent(&adapter->pdev->dev, flash_cmd.size, - &flash_cmd.dma, GFP_KERNEL); - if (!flash_cmd.va) { - status = -ENOMEM; - dev_err(&adapter->pdev->dev, - "Memory allocation failure while flashing\n"); - goto be_fw_exit; - } - - if ((adapter->generation == BE_GEN3) && - (get_ufigen_type(fhdr) == BE_GEN3)) { - fhdr3 = (struct flash_file_hdr_g3 *) fw->data; - num_imgs = le32_to_cpu(fhdr3->num_imgs); - for (i = 0; i < num_imgs; i++) { - img_hdr_ptr = (struct image_hdr *) (fw->data + - (sizeof(struct flash_file_hdr_g3) + - i * sizeof(struct image_hdr))); - if (le32_to_cpu(img_hdr_ptr->imageid) == 1) - status = be_flash_data(adapter, fw, &flash_cmd, - num_imgs); - } - } else if ((adapter->generation == BE_GEN2) && - (get_ufigen_type(fhdr) == BE_GEN2)) { - status = be_flash_data(adapter, fw, &flash_cmd, 0); - } else { - dev_err(&adapter->pdev->dev, - "UFI and Interface are not compatible for flashing\n"); - status = -1; - } - - dma_free_coherent(&adapter->pdev->dev, flash_cmd.size, flash_cmd.va, - flash_cmd.dma); - if (status) { - dev_err(&adapter->pdev->dev, "Firmware load error\n"); - goto be_fw_exit; - } - - dev_info(&adapter->pdev->dev, "Firmware flashed successfully\n"); - -be_fw_exit: - return status; -} - -int be_load_fw(struct be_adapter *adapter, u8 *fw_file) -{ - const struct firmware *fw; - int status; - - if (!netif_running(adapter->netdev)) { - dev_err(&adapter->pdev->dev, - "Firmware load not allowed (interface is down)\n"); - return -1; - } - - status = request_firmware(&fw, fw_file, &adapter->pdev->dev); - if (status) - goto fw_exit; - - dev_info(&adapter->pdev->dev, "Flashing firmware file %s\n", fw_file); - - if (lancer_chip(adapter)) - status = lancer_fw_download(adapter, fw); - else - status = be_fw_download(adapter, fw); - -fw_exit: - release_firmware(fw); - return status; -} - -static struct net_device_ops be_netdev_ops = { - .ndo_open = be_open, - .ndo_stop = be_close, - .ndo_start_xmit = be_xmit, - .ndo_set_rx_mode = be_set_multicast_list, - .ndo_set_mac_address = be_mac_addr_set, - .ndo_change_mtu = be_change_mtu, - .ndo_get_stats64 = be_get_stats64, - .ndo_validate_addr = eth_validate_addr, - .ndo_vlan_rx_add_vid = be_vlan_add_vid, - .ndo_vlan_rx_kill_vid = be_vlan_rem_vid, - .ndo_set_vf_mac = be_set_vf_mac, - .ndo_set_vf_vlan = be_set_vf_vlan, - .ndo_set_vf_tx_rate = be_set_vf_tx_rate, - .ndo_get_vf_config = be_get_vf_config -}; - -static void be_netdev_init(struct net_device *netdev) -{ - struct be_adapter *adapter = netdev_priv(netdev); - struct be_rx_obj *rxo; - int i; - - netdev->hw_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 | - NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_RXCSUM | - NETIF_F_HW_VLAN_TX; - if (be_multi_rxq(adapter)) - netdev->hw_features |= NETIF_F_RXHASH; - - netdev->features |= netdev->hw_features | - NETIF_F_HW_VLAN_RX | NETIF_F_HW_VLAN_FILTER; - - netdev->vlan_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 | - NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM; - - netdev->flags |= IFF_MULTICAST; - - /* Default settings for Rx and Tx flow control */ - adapter->rx_fc = true; - adapter->tx_fc = true; - - netif_set_gso_max_size(netdev, 65535); - - BE_SET_NETDEV_OPS(netdev, &be_netdev_ops); - - SET_ETHTOOL_OPS(netdev, &be_ethtool_ops); - - for_all_rx_queues(adapter, rxo, i) - netif_napi_add(netdev, &rxo->rx_eq.napi, be_poll_rx, - BE_NAPI_WEIGHT); - - netif_napi_add(netdev, &adapter->tx_eq.napi, be_poll_tx_mcc, - BE_NAPI_WEIGHT); -} - -static void be_unmap_pci_bars(struct be_adapter *adapter) -{ - if (adapter->csr) - iounmap(adapter->csr); - if (adapter->db) - iounmap(adapter->db); - if (adapter->pcicfg && be_physfn(adapter)) - iounmap(adapter->pcicfg); -} - -static int be_map_pci_bars(struct be_adapter *adapter) -{ - u8 __iomem *addr; - int pcicfg_reg, db_reg; - - if (lancer_chip(adapter)) { - addr = ioremap_nocache(pci_resource_start(adapter->pdev, 0), - pci_resource_len(adapter->pdev, 0)); - if (addr == NULL) - return -ENOMEM; - adapter->db = addr; - return 0; - } - - if (be_physfn(adapter)) { - addr = ioremap_nocache(pci_resource_start(adapter->pdev, 2), - pci_resource_len(adapter->pdev, 2)); - if (addr == NULL) - return -ENOMEM; - adapter->csr = addr; - } - - if (adapter->generation == BE_GEN2) { - pcicfg_reg = 1; - db_reg = 4; - } else { - pcicfg_reg = 0; - if (be_physfn(adapter)) - db_reg = 4; - else - db_reg = 0; - } - addr = ioremap_nocache(pci_resource_start(adapter->pdev, db_reg), - pci_resource_len(adapter->pdev, db_reg)); - if (addr == NULL) - goto pci_map_err; - adapter->db = addr; - - if (be_physfn(adapter)) { - addr = ioremap_nocache( - pci_resource_start(adapter->pdev, pcicfg_reg), - pci_resource_len(adapter->pdev, pcicfg_reg)); - if (addr == NULL) - goto pci_map_err; - adapter->pcicfg = addr; - } else - adapter->pcicfg = adapter->db + SRIOV_VF_PCICFG_OFFSET; - - return 0; -pci_map_err: - be_unmap_pci_bars(adapter); - return -ENOMEM; -} - - -static void be_ctrl_cleanup(struct be_adapter *adapter) -{ - struct be_dma_mem *mem = &adapter->mbox_mem_alloced; - - be_unmap_pci_bars(adapter); - - if (mem->va) - dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va, - mem->dma); - - mem = &adapter->rx_filter; - if (mem->va) - dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va, - mem->dma); -} - -static int be_ctrl_init(struct be_adapter *adapter) -{ - struct be_dma_mem *mbox_mem_alloc = &adapter->mbox_mem_alloced; - struct be_dma_mem *mbox_mem_align = &adapter->mbox_mem; - struct be_dma_mem *rx_filter = &adapter->rx_filter; - int status; - - status = be_map_pci_bars(adapter); - if (status) - goto done; - - mbox_mem_alloc->size = sizeof(struct be_mcc_mailbox) + 16; - mbox_mem_alloc->va = dma_alloc_coherent(&adapter->pdev->dev, - mbox_mem_alloc->size, - &mbox_mem_alloc->dma, - GFP_KERNEL); - if (!mbox_mem_alloc->va) { - status = -ENOMEM; - goto unmap_pci_bars; - } - mbox_mem_align->size = sizeof(struct be_mcc_mailbox); - mbox_mem_align->va = PTR_ALIGN(mbox_mem_alloc->va, 16); - mbox_mem_align->dma = PTR_ALIGN(mbox_mem_alloc->dma, 16); - memset(mbox_mem_align->va, 0, sizeof(struct be_mcc_mailbox)); - - rx_filter->size = sizeof(struct be_cmd_req_rx_filter); - rx_filter->va = dma_alloc_coherent(&adapter->pdev->dev, rx_filter->size, - &rx_filter->dma, GFP_KERNEL); - if (rx_filter->va == NULL) { - status = -ENOMEM; - goto free_mbox; - } - memset(rx_filter->va, 0, rx_filter->size); - - mutex_init(&adapter->mbox_lock); - spin_lock_init(&adapter->mcc_lock); - spin_lock_init(&adapter->mcc_cq_lock); - - init_completion(&adapter->flash_compl); - pci_save_state(adapter->pdev); - return 0; - -free_mbox: - dma_free_coherent(&adapter->pdev->dev, mbox_mem_alloc->size, - mbox_mem_alloc->va, mbox_mem_alloc->dma); - -unmap_pci_bars: - be_unmap_pci_bars(adapter); - -done: - return status; -} - -static void be_stats_cleanup(struct be_adapter *adapter) -{ - struct be_dma_mem *cmd = &adapter->stats_cmd; - - if (cmd->va) - dma_free_coherent(&adapter->pdev->dev, cmd->size, - cmd->va, cmd->dma); -} - -static int be_stats_init(struct be_adapter *adapter) -{ - struct be_dma_mem *cmd = &adapter->stats_cmd; - - if (adapter->generation == BE_GEN2) { - cmd->size = sizeof(struct be_cmd_req_get_stats_v0); - } else { - if (lancer_chip(adapter)) - cmd->size = sizeof(struct lancer_cmd_req_pport_stats); - else - cmd->size = sizeof(struct be_cmd_req_get_stats_v1); - } - cmd->va = dma_alloc_coherent(&adapter->pdev->dev, cmd->size, &cmd->dma, - GFP_KERNEL); - if (cmd->va == NULL) - return -1; - memset(cmd->va, 0, cmd->size); - return 0; -} - -static void __devexit be_remove(struct pci_dev *pdev) -{ - struct be_adapter *adapter = pci_get_drvdata(pdev); - - if (!adapter) - return; - - cancel_delayed_work_sync(&adapter->work); - - unregister_netdev(adapter->netdev); - - be_clear(adapter); - - be_stats_cleanup(adapter); - - be_ctrl_cleanup(adapter); - - kfree(adapter->vf_cfg); - be_sriov_disable(adapter); - - be_msix_disable(adapter); - - pci_set_drvdata(pdev, NULL); - pci_release_regions(pdev); - pci_disable_device(pdev); - - free_netdev(adapter->netdev); -} - -static int be_get_config(struct be_adapter *adapter) -{ - int status; - u8 mac[ETH_ALEN]; - - status = be_cmd_get_fw_ver(adapter, adapter->fw_ver); - if (status) - return status; - - status = be_cmd_query_fw_cfg(adapter, &adapter->port_num, - &adapter->function_mode, &adapter->function_caps); - if (status) - return status; - - memset(mac, 0, ETH_ALEN); - - /* A default permanent address is given to each VF for Lancer*/ - if (be_physfn(adapter) || lancer_chip(adapter)) { - status = be_cmd_mac_addr_query(adapter, mac, - MAC_ADDRESS_TYPE_NETWORK, true /*permanent */, 0); - - if (status) - return status; - - if (!is_valid_ether_addr(mac)) - return -EADDRNOTAVAIL; - - memcpy(adapter->netdev->dev_addr, mac, ETH_ALEN); - memcpy(adapter->netdev->perm_addr, mac, ETH_ALEN); - } - - if (adapter->function_mode & 0x400) - adapter->max_vlans = BE_NUM_VLANS_SUPPORTED/4; - else - adapter->max_vlans = BE_NUM_VLANS_SUPPORTED; - - status = be_cmd_get_cntl_attributes(adapter); - if (status) - return status; - - if ((num_vfs && adapter->sriov_enabled) || - (adapter->function_mode & 0x400) || - lancer_chip(adapter) || !be_physfn(adapter)) { - adapter->num_tx_qs = 1; - netif_set_real_num_tx_queues(adapter->netdev, - adapter->num_tx_qs); - } else { - adapter->num_tx_qs = MAX_TX_QS; - } - - return 0; -} - -static int be_dev_family_check(struct be_adapter *adapter) -{ - struct pci_dev *pdev = adapter->pdev; - u32 sli_intf = 0, if_type; - - switch (pdev->device) { - case BE_DEVICE_ID1: - case OC_DEVICE_ID1: - adapter->generation = BE_GEN2; - break; - case BE_DEVICE_ID2: - case OC_DEVICE_ID2: - adapter->generation = BE_GEN3; - break; - case OC_DEVICE_ID3: - case OC_DEVICE_ID4: - pci_read_config_dword(pdev, SLI_INTF_REG_OFFSET, &sli_intf); - if_type = (sli_intf & SLI_INTF_IF_TYPE_MASK) >> - SLI_INTF_IF_TYPE_SHIFT; - - if (((sli_intf & SLI_INTF_VALID_MASK) != SLI_INTF_VALID) || - if_type != 0x02) { - dev_err(&pdev->dev, "SLI_INTF reg val is not valid\n"); - return -EINVAL; - } - adapter->sli_family = ((sli_intf & SLI_INTF_FAMILY_MASK) >> - SLI_INTF_FAMILY_SHIFT); - adapter->generation = BE_GEN3; - break; - default: - adapter->generation = 0; - } - return 0; -} - -static int lancer_wait_ready(struct be_adapter *adapter) -{ -#define SLIPORT_READY_TIMEOUT 500 - u32 sliport_status; - int status = 0, i; - - for (i = 0; i < SLIPORT_READY_TIMEOUT; i++) { - sliport_status = ioread32(adapter->db + SLIPORT_STATUS_OFFSET); - if (sliport_status & SLIPORT_STATUS_RDY_MASK) - break; - - msleep(20); - } - - if (i == SLIPORT_READY_TIMEOUT) - status = -1; - - return status; -} - -static int lancer_test_and_set_rdy_state(struct be_adapter *adapter) -{ - int status; - u32 sliport_status, err, reset_needed; - status = lancer_wait_ready(adapter); - if (!status) { - sliport_status = ioread32(adapter->db + SLIPORT_STATUS_OFFSET); - err = sliport_status & SLIPORT_STATUS_ERR_MASK; - reset_needed = sliport_status & SLIPORT_STATUS_RN_MASK; - if (err && reset_needed) { - iowrite32(SLI_PORT_CONTROL_IP_MASK, - adapter->db + SLIPORT_CONTROL_OFFSET); - - /* check adapter has corrected the error */ - status = lancer_wait_ready(adapter); - sliport_status = ioread32(adapter->db + - SLIPORT_STATUS_OFFSET); - sliport_status &= (SLIPORT_STATUS_ERR_MASK | - SLIPORT_STATUS_RN_MASK); - if (status || sliport_status) - status = -1; - } else if (err || reset_needed) { - status = -1; - } - } - return status; -} - -static int __devinit be_probe(struct pci_dev *pdev, - const struct pci_device_id *pdev_id) -{ - int status = 0; - struct be_adapter *adapter; - struct net_device *netdev; - - status = pci_enable_device(pdev); - if (status) - goto do_none; - - status = pci_request_regions(pdev, DRV_NAME); - if (status) - goto disable_dev; - pci_set_master(pdev); - - netdev = alloc_etherdev_mq(sizeof(struct be_adapter), MAX_TX_QS); - if (netdev == NULL) { - status = -ENOMEM; - goto rel_reg; - } - adapter = netdev_priv(netdev); - adapter->pdev = pdev; - pci_set_drvdata(pdev, adapter); - - status = be_dev_family_check(adapter); - if (status) - goto free_netdev; - - adapter->netdev = netdev; - SET_NETDEV_DEV(netdev, &pdev->dev); - - status = dma_set_mask(&pdev->dev, DMA_BIT_MASK(64)); - if (!status) { - netdev->features |= NETIF_F_HIGHDMA; - } else { - status = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32)); - if (status) { - dev_err(&pdev->dev, "Could not set PCI DMA Mask\n"); - goto free_netdev; - } - } - - be_sriov_enable(adapter); - if (adapter->sriov_enabled) { - adapter->vf_cfg = kcalloc(num_vfs, - sizeof(struct be_vf_cfg), GFP_KERNEL); - - if (!adapter->vf_cfg) - goto free_netdev; - } - - status = be_ctrl_init(adapter); - if (status) - goto free_vf_cfg; - - if (lancer_chip(adapter)) { - status = lancer_test_and_set_rdy_state(adapter); - if (status) { - dev_err(&pdev->dev, "Adapter in non recoverable error\n"); - goto ctrl_clean; - } - } - - /* sync up with fw's ready state */ - if (be_physfn(adapter)) { - status = be_cmd_POST(adapter); - if (status) - goto ctrl_clean; - } - - /* tell fw we're ready to fire cmds */ - status = be_cmd_fw_init(adapter); - if (status) - goto ctrl_clean; - - status = be_cmd_reset_function(adapter); - if (status) - goto ctrl_clean; - - status = be_stats_init(adapter); - if (status) - goto ctrl_clean; - - status = be_get_config(adapter); - if (status) - goto stats_clean; - - /* The INTR bit may be set in the card when probed by a kdump kernel - * after a crash. - */ - if (!lancer_chip(adapter)) - be_intr_set(adapter, false); - - be_msix_enable(adapter); - - INIT_DELAYED_WORK(&adapter->work, be_worker); - - status = be_setup(adapter); - if (status) - goto msix_disable; - - be_netdev_init(netdev); - status = register_netdev(netdev); - if (status != 0) - goto unsetup; - - if (be_physfn(adapter) && adapter->sriov_enabled) { - u8 mac_speed; - u16 vf, lnk_speed; - - if (!lancer_chip(adapter)) { - status = be_vf_eth_addr_config(adapter); - if (status) - goto unreg_netdev; - } - - for (vf = 0; vf < num_vfs; vf++) { - status = be_cmd_link_status_query(adapter, &mac_speed, - &lnk_speed, vf + 1); - if (!status) - adapter->vf_cfg[vf].vf_tx_rate = lnk_speed * 10; - else - goto unreg_netdev; - } - } - - dev_info(&pdev->dev, "%s port %d\n", nic_name(pdev), adapter->port_num); - - schedule_delayed_work(&adapter->work, msecs_to_jiffies(100)); - return 0; - -unreg_netdev: - unregister_netdev(netdev); -unsetup: - be_clear(adapter); -msix_disable: - be_msix_disable(adapter); -stats_clean: - be_stats_cleanup(adapter); -ctrl_clean: - be_ctrl_cleanup(adapter); -free_vf_cfg: - kfree(adapter->vf_cfg); -free_netdev: - be_sriov_disable(adapter); - free_netdev(netdev); - pci_set_drvdata(pdev, NULL); -rel_reg: - pci_release_regions(pdev); -disable_dev: - pci_disable_device(pdev); -do_none: - dev_err(&pdev->dev, "%s initialization failed\n", nic_name(pdev)); - return status; -} - -static int be_suspend(struct pci_dev *pdev, pm_message_t state) -{ - struct be_adapter *adapter = pci_get_drvdata(pdev); - struct net_device *netdev = adapter->netdev; - - cancel_delayed_work_sync(&adapter->work); - if (adapter->wol) - be_setup_wol(adapter, true); - - netif_device_detach(netdev); - if (netif_running(netdev)) { - rtnl_lock(); - be_close(netdev); - rtnl_unlock(); - } - be_cmd_get_flow_control(adapter, &adapter->tx_fc, &adapter->rx_fc); - be_clear(adapter); - - be_msix_disable(adapter); - pci_save_state(pdev); - pci_disable_device(pdev); - pci_set_power_state(pdev, pci_choose_state(pdev, state)); - return 0; -} - -static int be_resume(struct pci_dev *pdev) -{ - int status = 0; - struct be_adapter *adapter = pci_get_drvdata(pdev); - struct net_device *netdev = adapter->netdev; - - netif_device_detach(netdev); - - status = pci_enable_device(pdev); - if (status) - return status; - - pci_set_power_state(pdev, 0); - pci_restore_state(pdev); - - be_msix_enable(adapter); - /* tell fw we're ready to fire cmds */ - status = be_cmd_fw_init(adapter); - if (status) - return status; - - be_setup(adapter); - if (netif_running(netdev)) { - rtnl_lock(); - be_open(netdev); - rtnl_unlock(); - } - netif_device_attach(netdev); - - if (adapter->wol) - be_setup_wol(adapter, false); - - schedule_delayed_work(&adapter->work, msecs_to_jiffies(100)); - return 0; -} - -/* - * An FLR will stop BE from DMAing any data. - */ -static void be_shutdown(struct pci_dev *pdev) -{ - struct be_adapter *adapter = pci_get_drvdata(pdev); - - if (!adapter) - return; - - cancel_delayed_work_sync(&adapter->work); - - netif_device_detach(adapter->netdev); - - if (adapter->wol) - be_setup_wol(adapter, true); - - be_cmd_reset_function(adapter); - - pci_disable_device(pdev); -} - -static pci_ers_result_t be_eeh_err_detected(struct pci_dev *pdev, - pci_channel_state_t state) -{ - struct be_adapter *adapter = pci_get_drvdata(pdev); - struct net_device *netdev = adapter->netdev; - - dev_err(&adapter->pdev->dev, "EEH error detected\n"); - - adapter->eeh_err = true; - - netif_device_detach(netdev); - - if (netif_running(netdev)) { - rtnl_lock(); - be_close(netdev); - rtnl_unlock(); - } - be_clear(adapter); - - if (state == pci_channel_io_perm_failure) - return PCI_ERS_RESULT_DISCONNECT; - - pci_disable_device(pdev); - - return PCI_ERS_RESULT_NEED_RESET; -} - -static pci_ers_result_t be_eeh_reset(struct pci_dev *pdev) -{ - struct be_adapter *adapter = pci_get_drvdata(pdev); - int status; - - dev_info(&adapter->pdev->dev, "EEH reset\n"); - adapter->eeh_err = false; - - status = pci_enable_device(pdev); - if (status) - return PCI_ERS_RESULT_DISCONNECT; - - pci_set_master(pdev); - pci_set_power_state(pdev, 0); - pci_restore_state(pdev); - - /* Check if card is ok and fw is ready */ - status = be_cmd_POST(adapter); - if (status) - return PCI_ERS_RESULT_DISCONNECT; - - return PCI_ERS_RESULT_RECOVERED; -} - -static void be_eeh_resume(struct pci_dev *pdev) -{ - int status = 0; - struct be_adapter *adapter = pci_get_drvdata(pdev); - struct net_device *netdev = adapter->netdev; - - dev_info(&adapter->pdev->dev, "EEH resume\n"); - - pci_save_state(pdev); - - /* tell fw we're ready to fire cmds */ - status = be_cmd_fw_init(adapter); - if (status) - goto err; - - status = be_setup(adapter); - if (status) - goto err; - - if (netif_running(netdev)) { - status = be_open(netdev); - if (status) - goto err; - } - netif_device_attach(netdev); - return; -err: - dev_err(&adapter->pdev->dev, "EEH resume failed\n"); -} - -static struct pci_error_handlers be_eeh_handlers = { - .error_detected = be_eeh_err_detected, - .slot_reset = be_eeh_reset, - .resume = be_eeh_resume, -}; - -static struct pci_driver be_driver = { - .name = DRV_NAME, - .id_table = be_dev_ids, - .probe = be_probe, - .remove = be_remove, - .suspend = be_suspend, - .resume = be_resume, - .shutdown = be_shutdown, - .err_handler = &be_eeh_handlers -}; - -static int __init be_init_module(void) -{ - if (rx_frag_size != 8192 && rx_frag_size != 4096 && - rx_frag_size != 2048) { - printk(KERN_WARNING DRV_NAME - " : Module param rx_frag_size must be 2048/4096/8192." - " Using 2048\n"); - rx_frag_size = 2048; - } - - return pci_register_driver(&be_driver); -} -module_init(be_init_module); - -static void __exit be_exit_module(void) -{ - pci_unregister_driver(&be_driver); -} -module_exit(be_exit_module); |