drivers/net/benet/be_main.c

   1 /*
   2  * Copyright (C) 2005 - 2009 ServerEngines
   3  * All rights reserved.
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License version 2
   7  * as published by the Free Software Foundation.  The full GNU General
   8  * Public License is included in this distribution in the file called COPYING.
   9  *
  10  * Contact Information:
  11  * linux-drivers@serverengines.com
  12  *
  13  * ServerEngines
  14  * 209 N. Fair Oaks Ave
  15  * Sunnyvale, CA 94085
  16  */
  17
  18 #include "be.h"
  19 #include "be_cmds.h"
  20 #include <asm/div64.h>
  21
  22 MODULE_VERSION(DRV_VER);
  23 MODULE_DEVICE_TABLE(pci, be_dev_ids);
  24 MODULE_DESCRIPTION(DRV_DESC " " DRV_VER);
  25 MODULE_AUTHOR("ServerEngines Corporation");
  26 MODULE_LICENSE("GPL");
  27
  28 static unsigned int rx_frag_size = 2048;
  29 module_param(rx_frag_size, uint, S_IRUGO);
  30 MODULE_PARM_DESC(rx_frag_size, "Size of a fragment that holds rcvd data.");
  31
  32 static DEFINE_PCI_DEVICE_TABLE(be_dev_ids) = {
  33         { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID1) },
  34         { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID2) },
  35         { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID1) },
  36         { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID2) },
  37         { 0 }
  38 };
  39 MODULE_DEVICE_TABLE(pci, be_dev_ids);
  40
  41 static void be_queue_free(struct be_adapter *adapter, struct be_queue_info *q)
  42 {
  43         struct be_dma_mem *mem = &q->dma_mem;
  44         if (mem->va)
  45                 pci_free_consistent(adapter->pdev, mem->size,
  46                         mem->va, mem->dma);
  47 }
  48
  49 static int be_queue_alloc(struct be_adapter *adapter, struct be_queue_info *q,
  50                 u16 len, u16 entry_size)
  51 {
  52         struct be_dma_mem *mem = &q->dma_mem;
  53
  54         memset(q, 0, sizeof(*q));
  55         q->len = len;
  56         q->entry_size = entry_size;
  57         mem->size = len * entry_size;
  58         mem->va = pci_alloc_consistent(adapter->pdev, mem->size, &mem->dma);
  59         if (!mem->va)
  60                 return -1;
  61         memset(mem->va, 0, mem->size);
  62         return 0;
  63 }
  64
  65 static void be_intr_set(struct be_adapter *adapter, bool enable)
  66 {
  67         u8 __iomem *addr = adapter->pcicfg + PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET;
  68         u32 reg = ioread32(addr);
  69         u32 enabled = reg & MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
  70
  71         if (!enabled && enable)
  72                 reg |= MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
  73         else if (enabled && !enable)
  74                 reg &= ~MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
  75         else
  76                 return;
  77
  78         iowrite32(reg, addr);
  79 }
  80
  81 static void be_rxq_notify(struct be_adapter *adapter, u16 qid, u16 posted)
  82 {
  83         u32 val = 0;
  84         val |= qid & DB_RQ_RING_ID_MASK;
  85         val |= posted << DB_RQ_NUM_POSTED_SHIFT;
  86         iowrite32(val, adapter->db + DB_RQ_OFFSET);
  87 }
  88
  89 static void be_txq_notify(struct be_adapter *adapter, u16 qid, u16 posted)
  90 {
  91         u32 val = 0;
  92         val |= qid & DB_TXULP_RING_ID_MASK;
  93         val |= (posted & DB_TXULP_NUM_POSTED_MASK) << DB_TXULP_NUM_POSTED_SHIFT;
  94         iowrite32(val, adapter->db + DB_TXULP1_OFFSET);
  95 }
  96
  97 static void be_eq_notify(struct be_adapter *adapter, u16 qid,
  98                 bool arm, bool clear_int, u16 num_popped)
  99 {
 100         u32 val = 0;
 101         val |= qid & DB_EQ_RING_ID_MASK;
 102         if (arm)
 103                 val |= 1 << DB_EQ_REARM_SHIFT;
 104         if (clear_int)
 105                 val |= 1 << DB_EQ_CLR_SHIFT;
 106         val |= 1 << DB_EQ_EVNT_SHIFT;
 107         val |= num_popped << DB_EQ_NUM_POPPED_SHIFT;
 108         iowrite32(val, adapter->db + DB_EQ_OFFSET);
 109 }
 110
 111 void be_cq_notify(struct be_adapter *adapter, u16 qid, bool arm, u16 num_popped)
 112 {
 113         u32 val = 0;
 114         val |= qid & DB_CQ_RING_ID_MASK;
 115         if (arm)
 116                 val |= 1 << DB_CQ_REARM_SHIFT;
 117         val |= num_popped << DB_CQ_NUM_POPPED_SHIFT;
 118         iowrite32(val, adapter->db + DB_CQ_OFFSET);
 119 }
 120
 121 static int be_mac_addr_set(struct net_device *netdev, void *p)
 122 {
 123         struct be_adapter *adapter = netdev_priv(netdev);
 124         struct sockaddr *addr = p;
 125         int status = 0;
 126
 127         if (!is_valid_ether_addr(addr->sa_data))
 128                 return -EADDRNOTAVAIL;
 129
 130         status = be_cmd_pmac_del(adapter, adapter->if_handle, adapter->pmac_id);
 131         if (status)
 132                 return status;
 133
 134         status = be_cmd_pmac_add(adapter, (u8 *)addr->sa_data,
 135                         adapter->if_handle, &adapter->pmac_id);
 136         if (!status)
 137                 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
 138
 139         return status;
 140 }
 141
 142 void netdev_stats_update(struct be_adapter *adapter)
 143 {
 144         struct be_hw_stats *hw_stats = hw_stats_from_cmd(adapter->stats.cmd.va);
 145         struct be_rxf_stats *rxf_stats = &hw_stats->rxf;
 146         struct be_port_rxf_stats *port_stats =
 147                         &rxf_stats->port[adapter->port_num];
 148         struct net_device_stats *dev_stats = &adapter->netdev->stats;
 149         struct be_erx_stats *erx_stats = &hw_stats->erx;
 150
 151         dev_stats->rx_packets = port_stats->rx_total_frames;
 152         dev_stats->tx_packets = port_stats->tx_unicastframes +
 153                 port_stats->tx_multicastframes + port_stats->tx_broadcastframes;
 154         dev_stats->rx_bytes = (u64) port_stats->rx_bytes_msd << 32 |
 155                                 (u64) port_stats->rx_bytes_lsd;
 156         dev_stats->tx_bytes = (u64) port_stats->tx_bytes_msd << 32 |
 157                                 (u64) port_stats->tx_bytes_lsd;
 158
 159         /* bad pkts received */
 160         dev_stats->rx_errors = port_stats->rx_crc_errors +
 161                 port_stats->rx_alignment_symbol_errors +
 162                 port_stats->rx_in_range_errors +
 163                 port_stats->rx_out_range_errors +
 164                 port_stats->rx_frame_too_long +
 165                 port_stats->rx_dropped_too_small +
 166                 port_stats->rx_dropped_too_short +
 167                 port_stats->rx_dropped_header_too_small +
 168                 port_stats->rx_dropped_tcp_length +
 169                 port_stats->rx_dropped_runt +
 170                 port_stats->rx_tcp_checksum_errs +
 171                 port_stats->rx_ip_checksum_errs +
 172                 port_stats->rx_udp_checksum_errs;
 173
 174         /*  no space in linux buffers: best possible approximation */
 175         dev_stats->rx_dropped =
 176                 erx_stats->rx_drops_no_fragments[adapter->rx_obj.q.id];
 177
 178         /* detailed rx errors */
 179         dev_stats->rx_length_errors = port_stats->rx_in_range_errors +
 180                 port_stats->rx_out_range_errors +
 181                 port_stats->rx_frame_too_long;
 182
 183         /* receive ring buffer overflow */
 184         dev_stats->rx_over_errors = 0;
 185
 186         dev_stats->rx_crc_errors = port_stats->rx_crc_errors;
 187
 188         /* frame alignment errors */
 189         dev_stats->rx_frame_errors = port_stats->rx_alignment_symbol_errors;
 190
 191         /* receiver fifo overrun */
 192         /* drops_no_pbuf is no per i/f, it's per BE card */
 193         dev_stats->rx_fifo_errors = port_stats->rx_fifo_overflow +
 194                                         port_stats->rx_input_fifo_overflow +
 195                                         rxf_stats->rx_drops_no_pbuf;
 196         /* receiver missed packetd */
 197         dev_stats->rx_missed_errors = 0;
 198
 199         /*  packet transmit problems */
 200         dev_stats->tx_errors = 0;
 201
 202         /* no space available in linux */
 203         dev_stats->tx_dropped = 0;
 204
 205         dev_stats->multicast = port_stats->rx_multicast_frames;
 206         dev_stats->collisions = 0;
 207
 208         /* detailed tx_errors */
 209         dev_stats->tx_aborted_errors = 0;
 210         dev_stats->tx_carrier_errors = 0;
 211         dev_stats->tx_fifo_errors = 0;
 212         dev_stats->tx_heartbeat_errors = 0;
 213         dev_stats->tx_window_errors = 0;
 214 }
 215
 216 void be_link_status_update(struct be_adapter *adapter, bool link_up)
 217 {
 218         struct net_device *netdev = adapter->netdev;
 219
 220         /* If link came up or went down */
 221         if (adapter->link_up != link_up) {
 222                 adapter->link_speed = -1;
 223                 if (link_up) {
 224                         netif_start_queue(netdev);
 225                         netif_carrier_on(netdev);
 226                         printk(KERN_INFO "%s: Link up\n", netdev->name);
 227                 } else {
 228                         netif_stop_queue(netdev);
 229                         netif_carrier_off(netdev);
 230                         printk(KERN_INFO "%s: Link down\n", netdev->name);
 231                 }
 232                 adapter->link_up = link_up;
 233         }
 234 }
 235
 236 /* Update the EQ delay n BE based on the RX frags consumed / sec */
 237 static void be_rx_eqd_update(struct be_adapter *adapter)
 238 {
 239         struct be_eq_obj *rx_eq = &adapter->rx_eq;
 240         struct be_drvr_stats *stats = &adapter->stats.drvr_stats;
 241         ulong now = jiffies;
 242         u32 eqd;
 243
 244         if (!rx_eq->enable_aic)
 245                 return;
 246
 247         /* Wrapped around */
 248         if (time_before(now, stats->rx_fps_jiffies)) {
 249                 stats->rx_fps_jiffies = now;
 250                 return;
 251         }
 252
 253         /* Update once a second */
 254         if ((now - stats->rx_fps_jiffies) < HZ)
 255                 return;
 256
 257         stats->be_rx_fps = (stats->be_rx_frags - stats->be_prev_rx_frags) /
 258                         ((now - stats->rx_fps_jiffies) / HZ);
 259
 260         stats->rx_fps_jiffies = now;
 261         stats->be_prev_rx_frags = stats->be_rx_frags;
 262         eqd = stats->be_rx_fps / 110000;
 263         eqd = eqd << 3;
 264         if (eqd > rx_eq->max_eqd)
 265                 eqd = rx_eq->max_eqd;
 266         if (eqd < rx_eq->min_eqd)
 267                 eqd = rx_eq->min_eqd;
 268         if (eqd < 10)
 269                 eqd = 0;
 270         if (eqd != rx_eq->cur_eqd)
 271                 be_cmd_modify_eqd(adapter, rx_eq->q.id, eqd);
 272
 273         rx_eq->cur_eqd = eqd;
 274 }
 275
 276 static struct net_device_stats *be_get_stats(struct net_device *dev)
 277 {
 278         return &dev->stats;
 279 }
 280
 281 static u32 be_calc_rate(u64 bytes, unsigned long ticks)
 282 {
 283         u64 rate = bytes;
 284
 285         do_div(rate, ticks / HZ);
 286         rate <<= 3;                     /* bytes/sec -> bits/sec */
 287         do_div(rate, 1000000ul);        /* MB/Sec */
 288
 289         return rate;
 290 }
 291
 292 static void be_tx_rate_update(struct be_adapter *adapter)
 293 {
 294         struct be_drvr_stats *stats = drvr_stats(adapter);
 295         ulong now = jiffies;
 296
 297         /* Wrapped around? */
 298         if (time_before(now, stats->be_tx_jiffies)) {
 299                 stats->be_tx_jiffies = now;
 300                 return;
 301         }
 302
 303         /* Update tx rate once in two seconds */
 304         if ((now - stats->be_tx_jiffies) > 2 * HZ) {
 305                 stats->be_tx_rate = be_calc_rate(stats->be_tx_bytes
 306                                                   - stats->be_tx_bytes_prev,
 307                                                  now - stats->be_tx_jiffies);
 308                 stats->be_tx_jiffies = now;
 309                 stats->be_tx_bytes_prev = stats->be_tx_bytes;
 310         }
 311 }
 312
 313 static void be_tx_stats_update(struct be_adapter *adapter,
 314                         u32 wrb_cnt, u32 copied, bool stopped)
 315 {
 316         struct be_drvr_stats *stats = drvr_stats(adapter);
 317         stats->be_tx_reqs++;
 318         stats->be_tx_wrbs += wrb_cnt;
 319         stats->be_tx_bytes += copied;
 320         if (stopped)
 321                 stats->be_tx_stops++;
 322 }
 323
 324 /* Determine number of WRB entries needed to xmit data in an skb */
 325 static u32 wrb_cnt_for_skb(struct sk_buff *skb, bool *dummy)
 326 {
 327         int cnt = (skb->len > skb->data_len);
 328
 329         cnt += skb_shinfo(skb)->nr_frags;
 330
 331         /* to account for hdr wrb */
 332         cnt++;
 333         if (cnt & 1) {
 334                 /* add a dummy to make it an even num */
 335                 cnt++;
 336                 *dummy = true;
 337         } else
 338                 *dummy = false;
 339         BUG_ON(cnt > BE_MAX_TX_FRAG_COUNT);
 340         return cnt;
 341 }
 342
 343 static inline void wrb_fill(struct be_eth_wrb *wrb, u64 addr, int len)
 344 {
 345         wrb->frag_pa_hi = upper_32_bits(addr);
 346         wrb->frag_pa_lo = addr & 0xFFFFFFFF;
 347         wrb->frag_len = len & ETH_WRB_FRAG_LEN_MASK;
 348 }
 349
 350 static void wrb_fill_hdr(struct be_eth_hdr_wrb *hdr, struct sk_buff *skb,
 351                 bool vlan, u32 wrb_cnt, u32 len)
 352 {
 353         memset(hdr, 0, sizeof(*hdr));
 354
 355         AMAP_SET_BITS(struct amap_eth_hdr_wrb, crc, hdr, 1);
 356
 357         if (skb_shinfo(skb)->gso_segs > 1 && skb_shinfo(skb)->gso_size) {
 358                 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso, hdr, 1);
 359                 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso_mss,
 360                         hdr, skb_shinfo(skb)->gso_size);
 361         } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
 362                 if (is_tcp_pkt(skb))
 363                         AMAP_SET_BITS(struct amap_eth_hdr_wrb, tcpcs, hdr, 1);
 364                 else if (is_udp_pkt(skb))
 365                         AMAP_SET_BITS(struct amap_eth_hdr_wrb, udpcs, hdr, 1);
 366         }
 367
 368         if (vlan && vlan_tx_tag_present(skb)) {
 369                 AMAP_SET_BITS(struct amap_eth_hdr_wrb, vlan, hdr, 1);
 370                 AMAP_SET_BITS(struct amap_eth_hdr_wrb, vlan_tag,
 371                         hdr, vlan_tx_tag_get(skb));
 372         }
 373
 374         AMAP_SET_BITS(struct amap_eth_hdr_wrb, event, hdr, 1);
 375         AMAP_SET_BITS(struct amap_eth_hdr_wrb, complete, hdr, 1);
 376         AMAP_SET_BITS(struct amap_eth_hdr_wrb, num_wrb, hdr, wrb_cnt);
 377         AMAP_SET_BITS(struct amap_eth_hdr_wrb, len, hdr, len);
 378 }
 379
 380
 381 static int make_tx_wrbs(struct be_adapter *adapter,
 382                 struct sk_buff *skb, u32 wrb_cnt, bool dummy_wrb)
 383 {
 384         u64 busaddr;
 385         u32 i, copied = 0;
 386         struct pci_dev *pdev = adapter->pdev;
 387         struct sk_buff *first_skb = skb;
 388         struct be_queue_info *txq = &adapter->tx_obj.q;
 389         struct be_eth_wrb *wrb;
 390         struct be_eth_hdr_wrb *hdr;
 391
 392         hdr = queue_head_node(txq);
 393         atomic_add(wrb_cnt, &txq->used);
 394         queue_head_inc(txq);
 395
 396         if (skb->len > skb->data_len) {
 397                 int len = skb->len - skb->data_len;
 398                 busaddr = pci_map_single(pdev, skb->data, len,
 399                                          PCI_DMA_TODEVICE);
 400                 wrb = queue_head_node(txq);
 401                 wrb_fill(wrb, busaddr, len);
 402                 be_dws_cpu_to_le(wrb, sizeof(*wrb));
 403                 queue_head_inc(txq);
 404                 copied += len;
 405         }
 406
 407         for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
 408                 struct skb_frag_struct *frag =
 409                         &skb_shinfo(skb)->frags[i];
 410                 busaddr = pci_map_page(pdev, frag->page,
 411                                        frag->page_offset,
 412                                        frag->size, PCI_DMA_TODEVICE);
 413                 wrb = queue_head_node(txq);
 414                 wrb_fill(wrb, busaddr, frag->size);
 415                 be_dws_cpu_to_le(wrb, sizeof(*wrb));
 416                 queue_head_inc(txq);
 417                 copied += frag->size;
 418         }
 419
 420         if (dummy_wrb) {
 421                 wrb = queue_head_node(txq);
 422                 wrb_fill(wrb, 0, 0);
 423                 be_dws_cpu_to_le(wrb, sizeof(*wrb));
 424                 queue_head_inc(txq);
 425         }
 426
 427         wrb_fill_hdr(hdr, first_skb, adapter->vlan_grp ? true : false,
 428                 wrb_cnt, copied);
 429         be_dws_cpu_to_le(hdr, sizeof(*hdr));
 430
 431         return copied;
 432 }
 433
 434 static netdev_tx_t be_xmit(struct sk_buff *skb,
 435                         struct net_device *netdev)
 436 {
 437         struct be_adapter *adapter = netdev_priv(netdev);
 438         struct be_tx_obj *tx_obj = &adapter->tx_obj;
 439         struct be_queue_info *txq = &tx_obj->q;
 440         u32 wrb_cnt = 0, copied = 0;
 441         u32 start = txq->head;
 442         bool dummy_wrb, stopped = false;
 443
 444         wrb_cnt = wrb_cnt_for_skb(skb, &dummy_wrb);
 445
 446         copied = make_tx_wrbs(adapter, skb, wrb_cnt, dummy_wrb);
 447         if (copied) {
 448                 /* record the sent skb in the sent_skb table */
 449                 BUG_ON(tx_obj->sent_skb_list[start]);
 450                 tx_obj->sent_skb_list[start] = skb;
 451
 452                 /* Ensure txq has space for the next skb; Else stop the queue
 453                  * *BEFORE* ringing the tx doorbell, so that we serialze the
 454                  * tx compls of the current transmit which'll wake up the queue
 455                  */
 456                 if ((BE_MAX_TX_FRAG_COUNT + atomic_read(&txq->used)) >=
 457                                                                 txq->len) {
 458                         netif_stop_queue(netdev);
 459                         stopped = true;
 460                 }
 461
 462                 be_txq_notify(adapter, txq->id, wrb_cnt);
 463
 464                 be_tx_stats_update(adapter, wrb_cnt, copied, stopped);
 465         } else {
 466                 txq->head = start;
 467                 dev_kfree_skb_any(skb);
 468         }
 469         return NETDEV_TX_OK;
 470 }
 471
 472 static int be_change_mtu(struct net_device *netdev, int new_mtu)
 473 {
 474         struct be_adapter *adapter = netdev_priv(netdev);
 475         if (new_mtu < BE_MIN_MTU ||
 476                         new_mtu > (BE_MAX_JUMBO_FRAME_SIZE -
 477                                         (ETH_HLEN + ETH_FCS_LEN))) {
 478                 dev_info(&adapter->pdev->dev,
 479                         "MTU must be between %d and %d bytes\n",
 480                         BE_MIN_MTU,
 481                         (BE_MAX_JUMBO_FRAME_SIZE - (ETH_HLEN + ETH_FCS_LEN)));
 482                 return -EINVAL;
 483         }
 484         dev_info(&adapter->pdev->dev, "MTU changed from %d to %d bytes\n",
 485                         netdev->mtu, new_mtu);
 486         netdev->mtu = new_mtu;
 487         return 0;
 488 }
 489
 490 /*
 491  * if there are BE_NUM_VLANS_SUPPORTED or lesser number of VLANS configured,
 492  * program them in BE.  If more than BE_NUM_VLANS_SUPPORTED are configured,
 493  * set the BE in promiscuous VLAN mode.
 494  */
 495 static int be_vid_config(struct be_adapter *adapter)
 496 {
 497         u16 vtag[BE_NUM_VLANS_SUPPORTED];
 498         u16 ntags = 0, i;
 499         int status;
 500
 501         if (adapter->num_vlans <= BE_NUM_VLANS_SUPPORTED)  {
 502                 /* Construct VLAN Table to give to HW */
 503                 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
 504                         if (adapter->vlan_tag[i]) {
 505                                 vtag[ntags] = cpu_to_le16(i);
 506                                 ntags++;
 507                         }
 508                 }
 509                 status = be_cmd_vlan_config(adapter, adapter->if_handle,
 510                                         vtag, ntags, 1, 0);
 511         } else {
 512                 status = be_cmd_vlan_config(adapter, adapter->if_handle,
 513                                         NULL, 0, 1, 1);
 514         }
 515         return status;
 516 }
 517
 518 static void be_vlan_register(struct net_device *netdev, struct vlan_group *grp)
 519 {
 520         struct be_adapter *adapter = netdev_priv(netdev);
 521         struct be_eq_obj *rx_eq = &adapter->rx_eq;
 522         struct be_eq_obj *tx_eq = &adapter->tx_eq;
 523
 524         be_eq_notify(adapter, rx_eq->q.id, false, false, 0);
 525         be_eq_notify(adapter, tx_eq->q.id, false, false, 0);
 526         adapter->vlan_grp = grp;
 527         be_eq_notify(adapter, rx_eq->q.id, true, false, 0);
 528         be_eq_notify(adapter, tx_eq->q.id, true, false, 0);
 529 }
 530
 531 static void be_vlan_add_vid(struct net_device *netdev, u16 vid)
 532 {
 533         struct be_adapter *adapter = netdev_priv(netdev);
 534
 535         adapter->num_vlans++;
 536         adapter->vlan_tag[vid] = 1;
 537
 538         be_vid_config(adapter);
 539 }
 540
 541 static void be_vlan_rem_vid(struct net_device *netdev, u16 vid)
 542 {
 543         struct be_adapter *adapter = netdev_priv(netdev);
 544
 545         adapter->num_vlans--;
 546         adapter->vlan_tag[vid] = 0;
 547
 548         vlan_group_set_device(adapter->vlan_grp, vid, NULL);
 549         be_vid_config(adapter);
 550 }
 551
 552 static void be_set_multicast_list(struct net_device *netdev)
 553 {
 554         struct be_adapter *adapter = netdev_priv(netdev);
 555
 556         if (netdev->flags & IFF_PROMISC) {
 557                 be_cmd_promiscuous_config(adapter, adapter->port_num, 1);
 558                 adapter->promiscuous = true;
 559                 goto done;
 560         }
 561
 562         /* BE was previously in promiscous mode; disable it */
 563         if (adapter->promiscuous) {
 564                 adapter->promiscuous = false;
 565                 be_cmd_promiscuous_config(adapter, adapter->port_num, 0);
 566         }
 567
 568         /* Enable multicast promisc if num configured exceeds what we support */
 569         if (netdev->flags & IFF_ALLMULTI ||
 570             netdev_mc_count(netdev) > BE_MAX_MC) {
 571                 be_cmd_multicast_set(adapter, adapter->if_handle, NULL, 0,
 572                                 &adapter->mc_cmd_mem);
 573                 goto done;
 574         }
 575
 576         be_cmd_multicast_set(adapter, adapter->if_handle, netdev->mc_list,
 577                 netdev_mc_count(netdev), &adapter->mc_cmd_mem);
 578 done:
 579         return;
 580 }
 581
 582 static void be_rx_rate_update(struct be_adapter *adapter)
 583 {
 584         struct be_drvr_stats *stats = drvr_stats(adapter);
 585         ulong now = jiffies;
 586
 587         /* Wrapped around */
 588         if (time_before(now, stats->be_rx_jiffies)) {
 589                 stats->be_rx_jiffies = now;
 590                 return;
 591         }
 592
 593         /* Update the rate once in two seconds */
 594         if ((now - stats->be_rx_jiffies) < 2 * HZ)
 595                 return;
 596
 597         stats->be_rx_rate = be_calc_rate(stats->be_rx_bytes
 598                                           - stats->be_rx_bytes_prev,
 599                                          now - stats->be_rx_jiffies);
 600         stats->be_rx_jiffies = now;
 601         stats->be_rx_bytes_prev = stats->be_rx_bytes;
 602 }
 603
 604 static void be_rx_stats_update(struct be_adapter *adapter,
 605                 u32 pktsize, u16 numfrags)
 606 {
 607         struct be_drvr_stats *stats = drvr_stats(adapter);
 608
 609         stats->be_rx_compl++;
 610         stats->be_rx_frags += numfrags;
 611         stats->be_rx_bytes += pktsize;
 612 }
 613
 614 static inline bool do_pkt_csum(struct be_eth_rx_compl *rxcp, bool cso)
 615 {
 616         u8 l4_cksm, ip_version, ipcksm, tcpf = 0, udpf = 0, ipv6_chk;
 617
 618         l4_cksm = AMAP_GET_BITS(struct amap_eth_rx_compl, l4_cksm, rxcp);
 619         ipcksm = AMAP_GET_BITS(struct amap_eth_rx_compl, ipcksm, rxcp);
 620         ip_version = AMAP_GET_BITS(struct amap_eth_rx_compl, ip_version, rxcp);
 621         if (ip_version) {
 622                 tcpf = AMAP_GET_BITS(struct amap_eth_rx_compl, tcpf, rxcp);
 623                 udpf = AMAP_GET_BITS(struct amap_eth_rx_compl, udpf, rxcp);
 624         }
 625         ipv6_chk = (ip_version && (tcpf || udpf));
 626
 627         return ((l4_cksm && ipv6_chk && ipcksm) && cso) ? false : true;
 628 }
 629
 630 static struct be_rx_page_info *
 631 get_rx_page_info(struct be_adapter *adapter, u16 frag_idx)
 632 {
 633         struct be_rx_page_info *rx_page_info;
 634         struct be_queue_info *rxq = &adapter->rx_obj.q;
 635
 636         rx_page_info = &adapter->rx_obj.page_info_tbl[frag_idx];
 637         BUG_ON(!rx_page_info->page);
 638
 639         if (rx_page_info->last_page_user)
 640                 pci_unmap_page(adapter->pdev, pci_unmap_addr(rx_page_info, bus),
 641                         adapter->big_page_size, PCI_DMA_FROMDEVICE);
 642
 643         atomic_dec(&rxq->used);
 644         return rx_page_info;
 645 }
 646
 647 /* Throwaway the data in the Rx completion */
 648 static void be_rx_compl_discard(struct be_adapter *adapter,
 649                         struct be_eth_rx_compl *rxcp)
 650 {
 651         struct be_queue_info *rxq = &adapter->rx_obj.q;
 652         struct be_rx_page_info *page_info;
 653         u16 rxq_idx, i, num_rcvd;
 654
 655         rxq_idx = AMAP_GET_BITS(struct amap_eth_rx_compl, fragndx, rxcp);
 656         num_rcvd = AMAP_GET_BITS(struct amap_eth_rx_compl, numfrags, rxcp);
 657
 658         for (i = 0; i < num_rcvd; i++) {
 659                 page_info = get_rx_page_info(adapter, rxq_idx);
 660                 put_page(page_info->page);
 661                 memset(page_info, 0, sizeof(*page_info));
 662                 index_inc(&rxq_idx, rxq->len);
 663         }
 664 }
 665
 666 /*
 667  * skb_fill_rx_data forms a complete skb for an ether frame
 668  * indicated by rxcp.
 669  */
 670 static void skb_fill_rx_data(struct be_adapter *adapter,
 671                         struct sk_buff *skb, struct be_eth_rx_compl *rxcp)
 672 {
 673         struct be_queue_info *rxq = &adapter->rx_obj.q;
 674         struct be_rx_page_info *page_info;
 675         u16 rxq_idx, i, num_rcvd, j;
 676         u32 pktsize, hdr_len, curr_frag_len, size;
 677         u8 *start;
 678
 679         rxq_idx = AMAP_GET_BITS(struct amap_eth_rx_compl, fragndx, rxcp);
 680         pktsize = AMAP_GET_BITS(struct amap_eth_rx_compl, pktsize, rxcp);
 681         num_rcvd = AMAP_GET_BITS(struct amap_eth_rx_compl, numfrags, rxcp);
 682
 683         page_info = get_rx_page_info(adapter, rxq_idx);
 684
 685         start = page_address(page_info->page) + page_info->page_offset;
 686         prefetch(start);
 687
 688         /* Copy data in the first descriptor of this completion */
 689         curr_frag_len = min(pktsize, rx_frag_size);
 690
 691         /* Copy the header portion into skb_data */
 692         hdr_len = min((u32)BE_HDR_LEN, curr_frag_len);
 693         memcpy(skb->data, start, hdr_len);
 694         skb->len = curr_frag_len;
 695         if (curr_frag_len <= BE_HDR_LEN) { /* tiny packet */
 696                 /* Complete packet has now been moved to data */
 697                 put_page(page_info->page);
 698                 skb->data_len = 0;
 699                 skb->tail += curr_frag_len;
 700         } else {
 701                 skb_shinfo(skb)->nr_frags = 1;
 702                 skb_shinfo(skb)->frags[0].page = page_info->page;
 703                 skb_shinfo(skb)->frags[0].page_offset =
 704                                         page_info->page_offset + hdr_len;
 705                 skb_shinfo(skb)->frags[0].size = curr_frag_len - hdr_len;
 706                 skb->data_len = curr_frag_len - hdr_len;
 707                 skb->tail += hdr_len;
 708         }
 709         memset(page_info, 0, sizeof(*page_info));
 710
 711         if (pktsize <= rx_frag_size) {
 712                 BUG_ON(num_rcvd != 1);
 713                 goto done;
 714         }
 715
 716         /* More frags present for this completion */
 717         size = pktsize;
 718         for (i = 1, j = 0; i < num_rcvd; i++) {
 719                 size -= curr_frag_len;
 720                 index_inc(&rxq_idx, rxq->len);
 721                 page_info = get_rx_page_info(adapter, rxq_idx);
 722
 723                 curr_frag_len = min(size, rx_frag_size);
 724
 725                 /* Coalesce all frags from the same physical page in one slot */
 726                 if (page_info->page_offset == 0) {
 727                         /* Fresh page */
 728                         j++;
 729                         skb_shinfo(skb)->frags[j].page = page_info->page;
 730                         skb_shinfo(skb)->frags[j].page_offset =
 731                                                         page_info->page_offset;
 732                         skb_shinfo(skb)->frags[j].size = 0;
 733                         skb_shinfo(skb)->nr_frags++;
 734                 } else {
 735                         put_page(page_info->page);
 736                 }
 737
 738                 skb_shinfo(skb)->frags[j].size += curr_frag_len;
 739                 skb->len += curr_frag_len;
 740                 skb->data_len += curr_frag_len;
 741
 742                 memset(page_info, 0, sizeof(*page_info));
 743         }
 744         BUG_ON(j > MAX_SKB_FRAGS);
 745
 746 done:
 747         be_rx_stats_update(adapter, pktsize, num_rcvd);
 748         return;
 749 }
 750
 751 /* Process the RX completion indicated by rxcp when GRO is disabled */
 752 static void be_rx_compl_process(struct be_adapter *adapter,
 753                         struct be_eth_rx_compl *rxcp)
 754 {
 755         struct sk_buff *skb;
 756         u32 vlanf, vid;
 757         u8 vtm;
 758
 759         vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl, vtp, rxcp);
 760         vtm = AMAP_GET_BITS(struct amap_eth_rx_compl, vtm, rxcp);
 761
 762         /* vlanf could be wrongly set in some cards.
 763          * ignore if vtm is not set */
 764         if ((adapter->cap & 0x400) && !vtm)
 765                 vlanf = 0;
 766
 767         skb = netdev_alloc_skb_ip_align(adapter->netdev, BE_HDR_LEN);
 768         if (!skb) {
 769                 if (net_ratelimit())
 770                         dev_warn(&adapter->pdev->dev, "skb alloc failed\n");
 771                 be_rx_compl_discard(adapter, rxcp);
 772                 return;
 773         }
 774
 775         skb_fill_rx_data(adapter, skb, rxcp);
 776
 777         if (do_pkt_csum(rxcp, adapter->rx_csum))
 778                 skb->ip_summed = CHECKSUM_NONE;
 779         else
 780                 skb->ip_summed = CHECKSUM_UNNECESSARY;
 781
 782         skb->truesize = skb->len + sizeof(struct sk_buff);
 783         skb->protocol = eth_type_trans(skb, adapter->netdev);
 784         skb->dev = adapter->netdev;
 785
 786         if (vlanf) {
 787                 if (!adapter->vlan_grp || adapter->num_vlans == 0) {
 788                         kfree_skb(skb);
 789                         return;
 790                 }
 791                 vid = AMAP_GET_BITS(struct amap_eth_rx_compl, vlan_tag, rxcp);
 792                 vid = be16_to_cpu(vid);
 793                 vlan_hwaccel_receive_skb(skb, adapter->vlan_grp, vid);
 794         } else {
 795                 netif_receive_skb(skb);
 796         }
 797
 798         return;
 799 }
 800
 801 /* Process the RX completion indicated by rxcp when GRO is enabled */
 802 static void be_rx_compl_process_gro(struct be_adapter *adapter,
 803                         struct be_eth_rx_compl *rxcp)
 804 {
 805         struct be_rx_page_info *page_info;
 806         struct sk_buff *skb = NULL;
 807         struct be_queue_info *rxq = &adapter->rx_obj.q;
 808         struct be_eq_obj *eq_obj =  &adapter->rx_eq;
 809         u32 num_rcvd, pkt_size, remaining, vlanf, curr_frag_len;
 810         u16 i, rxq_idx = 0, vid, j;
 811         u8 vtm;
 812
 813         num_rcvd = AMAP_GET_BITS(struct amap_eth_rx_compl, numfrags, rxcp);
 814         pkt_size = AMAP_GET_BITS(struct amap_eth_rx_compl, pktsize, rxcp);
 815         vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl, vtp, rxcp);
 816         rxq_idx = AMAP_GET_BITS(struct amap_eth_rx_compl, fragndx, rxcp);
 817         vtm = AMAP_GET_BITS(struct amap_eth_rx_compl, vtm, rxcp);
 818
 819         /* vlanf could be wrongly set in some cards.
 820          * ignore if vtm is not set */
 821         if ((adapter->cap & 0x400) && !vtm)
 822                 vlanf = 0;
 823
 824         skb = napi_get_frags(&eq_obj->napi);
 825         if (!skb) {
 826                 be_rx_compl_discard(adapter, rxcp);
 827                 return;
 828         }
 829
 830         remaining = pkt_size;
 831         for (i = 0, j = -1; i < num_rcvd; i++) {
 832                 page_info = get_rx_page_info(adapter, rxq_idx);
 833
 834                 curr_frag_len = min(remaining, rx_frag_size);
 835
 836                 /* Coalesce all frags from the same physical page in one slot */
 837                 if (i == 0 || page_info->page_offset == 0) {
 838                         /* First frag or Fresh page */
 839                         j++;
 840                         skb_shinfo(skb)->frags[j].page = page_info->page;
 841                         skb_shinfo(skb)->frags[j].page_offset =
 842                                                         page_info->page_offset;
 843                         skb_shinfo(skb)->frags[j].size = 0;
 844                 } else {
 845                         put_page(page_info->page);
 846                 }
 847                 skb_shinfo(skb)->frags[j].size += curr_frag_len;
 848
 849                 remaining -= curr_frag_len;
 850                 index_inc(&rxq_idx, rxq->len);
 851                 memset(page_info, 0, sizeof(*page_info));
 852         }
 853         BUG_ON(j > MAX_SKB_FRAGS);
 854
 855         skb_shinfo(skb)->nr_frags = j + 1;
 856         skb->len = pkt_size;
 857         skb->data_len = pkt_size;
 858         skb->truesize += pkt_size;
 859         skb->ip_summed = CHECKSUM_UNNECESSARY;
 860
 861         if (likely(!vlanf)) {
 862                 napi_gro_frags(&eq_obj->napi);
 863         } else {
 864                 vid = AMAP_GET_BITS(struct amap_eth_rx_compl, vlan_tag, rxcp);
 865                 vid = be16_to_cpu(vid);
 866
 867                 if (!adapter->vlan_grp || adapter->num_vlans == 0)
 868                         return;
 869
 870                 vlan_gro_frags(&eq_obj->napi, adapter->vlan_grp, vid);
 871         }
 872
 873         be_rx_stats_update(adapter, pkt_size, num_rcvd);
 874         return;
 875 }
 876
 877 static struct be_eth_rx_compl *be_rx_compl_get(struct be_adapter *adapter)
 878 {
 879         struct be_eth_rx_compl *rxcp = queue_tail_node(&adapter->rx_obj.cq);
 880
 881         if (rxcp->dw[offsetof(struct amap_eth_rx_compl, valid) / 32] == 0)
 882                 return NULL;
 883
 884         be_dws_le_to_cpu(rxcp, sizeof(*rxcp));
 885
 886         queue_tail_inc(&adapter->rx_obj.cq);
 887         return rxcp;
 888 }
 889
 890 /* To reset the valid bit, we need to reset the whole word as
 891  * when walking the queue the valid entries are little-endian
 892  * and invalid entries are host endian
 893  */
 894 static inline void be_rx_compl_reset(struct be_eth_rx_compl *rxcp)
 895 {
 896         rxcp->dw[offsetof(struct amap_eth_rx_compl, valid) / 32] = 0;
 897 }
 898
 899 static inline struct page *be_alloc_pages(u32 size)
 900 {
 901         gfp_t alloc_flags = GFP_ATOMIC;
 902         u32 order = get_order(size);
 903         if (order > 0)
 904                 alloc_flags |= __GFP_COMP;
 905         return  alloc_pages(alloc_flags, order);
 906 }
 907
 908 /*
 909  * Allocate a page, split it to fragments of size rx_frag_size and post as
 910  * receive buffers to BE
 911  */
 912 static void be_post_rx_frags(struct be_adapter *adapter)
 913 {
 914         struct be_rx_page_info *page_info_tbl = adapter->rx_obj.page_info_tbl;
 915         struct be_rx_page_info *page_info = NULL, *prev_page_info = NULL;
 916         struct be_queue_info *rxq = &adapter->rx_obj.q;
 917         struct page *pagep = NULL;
 918         struct be_eth_rx_d *rxd;
 919         u64 page_dmaaddr = 0, frag_dmaaddr;
 920         u32 posted, page_offset = 0;
 921
 922         page_info = &page_info_tbl[rxq->head];
 923         for (posted = 0; posted < MAX_RX_POST && !page_info->page; posted++) {
 924                 if (!pagep) {
 925                         pagep = be_alloc_pages(adapter->big_page_size);
 926                         if (unlikely(!pagep)) {
 927                                 drvr_stats(adapter)->be_ethrx_post_fail++;
 928                                 break;
 929                         }
 930                         page_dmaaddr = pci_map_page(adapter->pdev, pagep, 0,
 931                                                 adapter->big_page_size,
 932                                                 PCI_DMA_FROMDEVICE);
 933                         page_info->page_offset = 0;
 934                 } else {
 935                         get_page(pagep);
 936                         page_info->page_offset = page_offset + rx_frag_size;
 937                 }
 938                 page_offset = page_info->page_offset;
 939                 page_info->page = pagep;
 940                 pci_unmap_addr_set(page_info, bus, page_dmaaddr);
 941                 frag_dmaaddr = page_dmaaddr + page_info->page_offset;
 942
 943                 rxd = queue_head_node(rxq);
 944                 rxd->fragpa_lo = cpu_to_le32(frag_dmaaddr & 0xFFFFFFFF);
 945                 rxd->fragpa_hi = cpu_to_le32(upper_32_bits(frag_dmaaddr));
 946
 947                 /* Any space left in the current big page for another frag? */
 948                 if ((page_offset + rx_frag_size + rx_frag_size) >
 949                                         adapter->big_page_size) {
 950                         pagep = NULL;
 951                         page_info->last_page_user = true;
 952                 }
 953
 954                 prev_page_info = page_info;
 955                 queue_head_inc(rxq);
 956                 page_info = &page_info_tbl[rxq->head];
 957         }
 958         if (pagep)
 959                 prev_page_info->last_page_user = true;
 960
 961         if (posted) {
 962                 atomic_add(posted, &rxq->used);
 963                 be_rxq_notify(adapter, rxq->id, posted);
 964         } else if (atomic_read(&rxq->used) == 0) {
 965                 /* Let be_worker replenish when memory is available */
 966                 adapter->rx_post_starved = true;
 967         }
 968
 969         return;
 970 }
 971
 972 static struct be_eth_tx_compl *be_tx_compl_get(struct be_queue_info *tx_cq)
 973 {
 974         struct be_eth_tx_compl *txcp = queue_tail_node(tx_cq);
 975
 976         if (txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] == 0)
 977                 return NULL;
 978
 979         be_dws_le_to_cpu(txcp, sizeof(*txcp));
 980
 981         txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] = 0;
 982
 983         queue_tail_inc(tx_cq);
 984         return txcp;
 985 }
 986
 987 static void be_tx_compl_process(struct be_adapter *adapter, u16 last_index)
 988 {
 989         struct be_queue_info *txq = &adapter->tx_obj.q;
 990         struct be_eth_wrb *wrb;
 991         struct sk_buff **sent_skbs = adapter->tx_obj.sent_skb_list;
 992         struct sk_buff *sent_skb;
 993         u64 busaddr;
 994         u16 cur_index, num_wrbs = 0;
 995
 996         cur_index = txq->tail;
 997         sent_skb = sent_skbs[cur_index];
 998         BUG_ON(!sent_skb);
 999         sent_skbs[cur_index] = NULL;
1000         wrb = queue_tail_node(txq);
1001         be_dws_le_to_cpu(wrb, sizeof(*wrb));
1002         busaddr = ((u64)wrb->frag_pa_hi << 32) | (u64)wrb->frag_pa_lo;
1003         if (busaddr != 0) {
1004                 pci_unmap_single(adapter->pdev, busaddr,
1005                                  wrb->frag_len, PCI_DMA_TODEVICE);
1006         }
1007         num_wrbs++;
1008         queue_tail_inc(txq);
1009
1010         while (cur_index != last_index) {
1011                 cur_index = txq->tail;
1012                 wrb = queue_tail_node(txq);
1013                 be_dws_le_to_cpu(wrb, sizeof(*wrb));
1014                 busaddr = ((u64)wrb->frag_pa_hi << 32) | (u64)wrb->frag_pa_lo;
1015                 if (busaddr != 0) {
1016                         pci_unmap_page(adapter->pdev, busaddr,
1017                                        wrb->frag_len, PCI_DMA_TODEVICE);
1018                 }
1019                 num_wrbs++;
1020                 queue_tail_inc(txq);
1021         }
1022
1023         atomic_sub(num_wrbs, &txq->used);
1024
1025         kfree_skb(sent_skb);
1026 }
1027
1028 static inline struct be_eq_entry *event_get(struct be_eq_obj *eq_obj)
1029 {
1030         struct be_eq_entry *eqe = queue_tail_node(&eq_obj->q);
1031
1032         if (!eqe->evt)
1033                 return NULL;
1034
1035         eqe->evt = le32_to_cpu(eqe->evt);
1036         queue_tail_inc(&eq_obj->q);
1037         return eqe;
1038 }
1039
1040 static int event_handle(struct be_adapter *adapter,
1041                         struct be_eq_obj *eq_obj)
1042 {
1043         struct be_eq_entry *eqe;
1044         u16 num = 0;
1045
1046         while ((eqe = event_get(eq_obj)) != NULL) {
1047                 eqe->evt = 0;
1048                 num++;
1049         }
1050
1051         /* Deal with any spurious interrupts that come
1052          * without events
1053          */
1054         be_eq_notify(adapter, eq_obj->q.id, true, true, num);
1055         if (num)
1056                 napi_schedule(&eq_obj->napi);
1057
1058         return num;
1059 }
1060
1061 /* Just read and notify events without processing them.
1062  * Used at the time of destroying event queues */
1063 static void be_eq_clean(struct be_adapter *adapter,
1064                         struct be_eq_obj *eq_obj)
1065 {
1066         struct be_eq_entry *eqe;
1067         u16 num = 0;
1068
1069         while ((eqe = event_get(eq_obj)) != NULL) {
1070                 eqe->evt = 0;
1071                 num++;
1072         }
1073
1074         if (num)
1075                 be_eq_notify(adapter, eq_obj->q.id, false, true, num);
1076 }
1077
1078 static void be_rx_q_clean(struct be_adapter *adapter)
1079 {
1080         struct be_rx_page_info *page_info;
1081         struct be_queue_info *rxq = &adapter->rx_obj.q;
1082         struct be_queue_info *rx_cq = &adapter->rx_obj.cq;
1083         struct be_eth_rx_compl *rxcp;
1084         u16 tail;
1085
1086         /* First cleanup pending rx completions */
1087         while ((rxcp = be_rx_compl_get(adapter)) != NULL) {
1088                 be_rx_compl_discard(adapter, rxcp);
1089                 be_rx_compl_reset(rxcp);
1090                 be_cq_notify(adapter, rx_cq->id, true, 1);
1091         }
1092
1093         /* Then free posted rx buffer that were not used */
1094         tail = (rxq->head + rxq->len - atomic_read(&rxq->used)) % rxq->len;
1095         for (; atomic_read(&rxq->used) > 0; index_inc(&tail, rxq->len)) {
1096                 page_info = get_rx_page_info(adapter, tail);
1097                 put_page(page_info->page);
1098                 memset(page_info, 0, sizeof(*page_info));
1099         }
1100         BUG_ON(atomic_read(&rxq->used));
1101 }
1102
1103 static void be_tx_compl_clean(struct be_adapter *adapter)
1104 {
1105         struct be_queue_info *tx_cq = &adapter->tx_obj.cq;
1106         struct be_queue_info *txq = &adapter->tx_obj.q;
1107         struct be_eth_tx_compl *txcp;
1108         u16 end_idx, cmpl = 0, timeo = 0;
1109
1110         /* Wait for a max of 200ms for all the tx-completions to arrive. */
1111         do {
1112                 while ((txcp = be_tx_compl_get(tx_cq))) {
1113                         end_idx = AMAP_GET_BITS(struct amap_eth_tx_compl,
1114                                         wrb_index, txcp);
1115                         be_tx_compl_process(adapter, end_idx);
1116                         cmpl++;
1117                 }
1118                 if (cmpl) {
1119                         be_cq_notify(adapter, tx_cq->id, false, cmpl);
1120                         cmpl = 0;
1121                 }
1122
1123                 if (atomic_read(&txq->used) == 0 || ++timeo > 200)
1124                         break;
1125
1126                 mdelay(1);
1127         } while (true);
1128
1129         if (atomic_read(&txq->used))
1130                 dev_err(&adapter->pdev->dev, "%d pending tx-completions\n",
1131                         atomic_read(&txq->used));
1132 }
1133
1134 static void be_mcc_queues_destroy(struct be_adapter *adapter)
1135 {
1136         struct be_queue_info *q;
1137
1138         q = &adapter->mcc_obj.q;
1139         if (q->created)
1140                 be_cmd_q_destroy(adapter, q, QTYPE_MCCQ);
1141         be_queue_free(adapter, q);
1142
1143         q = &adapter->mcc_obj.cq;
1144         if (q->created)
1145                 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
1146         be_queue_free(adapter, q);
1147 }
1148
1149 /* Must be called only after TX qs are created as MCC shares TX EQ */
1150 static int be_mcc_queues_create(struct be_adapter *adapter)
1151 {
1152         struct be_queue_info *q, *cq;
1153
1154         /* Alloc MCC compl queue */
1155         cq = &adapter->mcc_obj.cq;
1156         if (be_queue_alloc(adapter, cq, MCC_CQ_LEN,
1157                         sizeof(struct be_mcc_compl)))
1158                 goto err;
1159
1160         /* Ask BE to create MCC compl queue; share TX's eq */
1161         if (be_cmd_cq_create(adapter, cq, &adapter->tx_eq.q, false, true, 0))
1162                 goto mcc_cq_free;
1163
1164         /* Alloc MCC queue */
1165         q = &adapter->mcc_obj.q;
1166         if (be_queue_alloc(adapter, q, MCC_Q_LEN, sizeof(struct be_mcc_wrb)))
1167                 goto mcc_cq_destroy;
1168
1169         /* Ask BE to create MCC queue */
1170         if (be_cmd_mccq_create(adapter, q, cq))
1171                 goto mcc_q_free;
1172
1173         return 0;
1174
1175 mcc_q_free:
1176         be_queue_free(adapter, q);
1177 mcc_cq_destroy:
1178         be_cmd_q_destroy(adapter, cq, QTYPE_CQ);
1179 mcc_cq_free:
1180         be_queue_free(adapter, cq);
1181 err:
1182         return -1;
1183 }
1184
1185 static void be_tx_queues_destroy(struct be_adapter *adapter)
1186 {
1187         struct be_queue_info *q;
1188
1189         q = &adapter->tx_obj.q;
1190         if (q->created)
1191                 be_cmd_q_destroy(adapter, q, QTYPE_TXQ);
1192         be_queue_free(adapter, q);
1193
1194         q = &adapter->tx_obj.cq;
1195         if (q->created)
1196                 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
1197         be_queue_free(adapter, q);
1198
1199         /* Clear any residual events */
1200         be_eq_clean(adapter, &adapter->tx_eq);
1201
1202         q = &adapter->tx_eq.q;
1203         if (q->created)
1204                 be_cmd_q_destroy(adapter, q, QTYPE_EQ);
1205         be_queue_free(adapter, q);
1206 }
1207
1208 static int be_tx_queues_create(struct be_adapter *adapter)
1209 {
1210         struct be_queue_info *eq, *q, *cq;
1211
1212         adapter->tx_eq.max_eqd = 0;
1213         adapter->tx_eq.min_eqd = 0;
1214         adapter->tx_eq.cur_eqd = 96;
1215         adapter->tx_eq.enable_aic = false;
1216         /* Alloc Tx Event queue */
1217         eq = &adapter->tx_eq.q;
1218         if (be_queue_alloc(adapter, eq, EVNT_Q_LEN, sizeof(struct be_eq_entry)))
1219                 return -1;
1220
1221         /* Ask BE to create Tx Event queue */
1222         if (be_cmd_eq_create(adapter, eq, adapter->tx_eq.cur_eqd))
1223                 goto tx_eq_free;
1224         /* Alloc TX eth compl queue */
1225         cq = &adapter->tx_obj.cq;
1226         if (be_queue_alloc(adapter, cq, TX_CQ_LEN,
1227                         sizeof(struct be_eth_tx_compl)))
1228                 goto tx_eq_destroy;
1229
1230         /* Ask BE to create Tx eth compl queue */
1231         if (be_cmd_cq_create(adapter, cq, eq, false, false, 3))
1232                 goto tx_cq_free;
1233
1234         /* Alloc TX eth queue */
1235         q = &adapter->tx_obj.q;
1236         if (be_queue_alloc(adapter, q, TX_Q_LEN, sizeof(struct be_eth_wrb)))
1237                 goto tx_cq_destroy;
1238
1239         /* Ask BE to create Tx eth queue */
1240         if (be_cmd_txq_create(adapter, q, cq))
1241                 goto tx_q_free;
1242         return 0;
1243
1244 tx_q_free:
1245         be_queue_free(adapter, q);
1246 tx_cq_destroy:
1247         be_cmd_q_destroy(adapter, cq, QTYPE_CQ);
1248 tx_cq_free:
1249         be_queue_free(adapter, cq);
1250 tx_eq_destroy:
1251         be_cmd_q_destroy(adapter, eq, QTYPE_EQ);
1252 tx_eq_free:
1253         be_queue_free(adapter, eq);
1254         return -1;
1255 }
1256
1257 static void be_rx_queues_destroy(struct be_adapter *adapter)
1258 {
1259         struct be_queue_info *q;
1260
1261         q = &adapter->rx_obj.q;
1262         if (q->created) {
1263                 be_cmd_q_destroy(adapter, q, QTYPE_RXQ);
1264                 be_rx_q_clean(adapter);
1265         }
1266         be_queue_free(adapter, q);
1267
1268         q = &adapter->rx_obj.cq;
1269         if (q->created)
1270                 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
1271         be_queue_free(adapter, q);
1272
1273         /* Clear any residual events */
1274         be_eq_clean(adapter, &adapter->rx_eq);
1275
1276         q = &adapter->rx_eq.q;
1277         if (q->created)
1278                 be_cmd_q_destroy(adapter, q, QTYPE_EQ);
1279         be_queue_free(adapter, q);
1280 }
1281
1282 static int be_rx_queues_create(struct be_adapter *adapter)
1283 {
1284         struct be_queue_info *eq, *q, *cq;
1285         int rc;
1286
1287         adapter->big_page_size = (1 << get_order(rx_frag_size)) * PAGE_SIZE;
1288         adapter->rx_eq.max_eqd = BE_MAX_EQD;
1289         adapter->rx_eq.min_eqd = 0;
1290         adapter->rx_eq.cur_eqd = 0;
1291         adapter->rx_eq.enable_aic = true;
1292
1293         /* Alloc Rx Event queue */
1294         eq = &adapter->rx_eq.q;
1295         rc = be_queue_alloc(adapter, eq, EVNT_Q_LEN,
1296                                 sizeof(struct be_eq_entry));
1297         if (rc)
1298                 return rc;
1299
1300         /* Ask BE to create Rx Event queue */
1301         rc = be_cmd_eq_create(adapter, eq, adapter->rx_eq.cur_eqd);
1302         if (rc)
1303                 goto rx_eq_free;
1304
1305         /* Alloc RX eth compl queue */
1306         cq = &adapter->rx_obj.cq;
1307         rc = be_queue_alloc(adapter, cq, RX_CQ_LEN,
1308                         sizeof(struct be_eth_rx_compl));
1309         if (rc)
1310                 goto rx_eq_destroy;
1311
1312         /* Ask BE to create Rx eth compl queue */
1313         rc = be_cmd_cq_create(adapter, cq, eq, false, false, 3);
1314         if (rc)
1315                 goto rx_cq_free;
1316
1317         /* Alloc RX eth queue */
1318         q = &adapter->rx_obj.q;
1319         rc = be_queue_alloc(adapter, q, RX_Q_LEN, sizeof(struct be_eth_rx_d));
1320         if (rc)
1321                 goto rx_cq_destroy;
1322
1323         /* Ask BE to create Rx eth queue */
1324         rc = be_cmd_rxq_create(adapter, q, cq->id, rx_frag_size,
1325                 BE_MAX_JUMBO_FRAME_SIZE, adapter->if_handle, false);
1326         if (rc)
1327                 goto rx_q_free;
1328
1329         return 0;
1330 rx_q_free:
1331         be_queue_free(adapter, q);
1332 rx_cq_destroy:
1333         be_cmd_q_destroy(adapter, cq, QTYPE_CQ);
1334 rx_cq_free:
1335         be_queue_free(adapter, cq);
1336 rx_eq_destroy:
1337         be_cmd_q_destroy(adapter, eq, QTYPE_EQ);
1338 rx_eq_free:
1339         be_queue_free(adapter, eq);
1340         return rc;
1341 }
1342
1343 /* There are 8 evt ids per func. Retruns the evt id's bit number */
1344 static inline int be_evt_bit_get(struct be_adapter *adapter, u32 eq_id)
1345 {
1346         return eq_id - 8 * be_pci_func(adapter);
1347 }
1348
1349 static irqreturn_t be_intx(int irq, void *dev)
1350 {
1351         struct be_adapter *adapter = dev;
1352         int isr;
1353
1354         isr = ioread32(adapter->csr + CEV_ISR0_OFFSET +
1355                 (adapter->tx_eq.q.id/ 8) * CEV_ISR_SIZE);
1356         if (!isr)
1357                 return IRQ_NONE;
1358
1359         event_handle(adapter, &adapter->tx_eq);
1360         event_handle(adapter, &adapter->rx_eq);
1361
1362         return IRQ_HANDLED;
1363 }
1364
1365 static irqreturn_t be_msix_rx(int irq, void *dev)
1366 {
1367         struct be_adapter *adapter = dev;
1368
1369         event_handle(adapter, &adapter->rx_eq);
1370
1371         return IRQ_HANDLED;
1372 }
1373
1374 static irqreturn_t be_msix_tx_mcc(int irq, void *dev)
1375 {
1376         struct be_adapter *adapter = dev;
1377
1378         event_handle(adapter, &adapter->tx_eq);
1379
1380         return IRQ_HANDLED;
1381 }
1382
1383 static inline bool do_gro(struct be_adapter *adapter,
1384                         struct be_eth_rx_compl *rxcp)
1385 {
1386         int err = AMAP_GET_BITS(struct amap_eth_rx_compl, err, rxcp);
1387         int tcp_frame = AMAP_GET_BITS(struct amap_eth_rx_compl, tcpf, rxcp);
1388
1389         if (err)
1390                 drvr_stats(adapter)->be_rxcp_err++;
1391
1392         return (tcp_frame && !err) ? true : false;
1393 }
1394
1395 int be_poll_rx(struct napi_struct *napi, int budget)
1396 {
1397         struct be_eq_obj *rx_eq = container_of(napi, struct be_eq_obj, napi);
1398         struct be_adapter *adapter =
1399                 container_of(rx_eq, struct be_adapter, rx_eq);
1400         struct be_queue_info *rx_cq = &adapter->rx_obj.cq;
1401         struct be_eth_rx_compl *rxcp;
1402         u32 work_done;
1403
1404         adapter->stats.drvr_stats.be_rx_polls++;
1405         for (work_done = 0; work_done < budget; work_done++) {
1406                 rxcp = be_rx_compl_get(adapter);
1407                 if (!rxcp)
1408                         break;
1409
1410                 if (do_gro(adapter, rxcp))
1411                         be_rx_compl_process_gro(adapter, rxcp);
1412                 else
1413                         be_rx_compl_process(adapter, rxcp);
1414
1415                 be_rx_compl_reset(rxcp);
1416         }
1417
1418         /* Refill the queue */
1419         if (atomic_read(&adapter->rx_obj.q.used) < RX_FRAGS_REFILL_WM)
1420                 be_post_rx_frags(adapter);
1421
1422         /* All consumed */
1423         if (work_done < budget) {
1424                 napi_complete(napi);
1425                 be_cq_notify(adapter, rx_cq->id, true, work_done);
1426         } else {
1427                 /* More to be consumed; continue with interrupts disabled */
1428                 be_cq_notify(adapter, rx_cq->id, false, work_done);
1429         }
1430         return work_done;
1431 }
1432
1433 void be_process_tx(struct be_adapter *adapter)
1434 {
1435         struct be_queue_info *txq = &adapter->tx_obj.q;
1436         struct be_queue_info *tx_cq = &adapter->tx_obj.cq;
1437         struct be_eth_tx_compl *txcp;
1438         u32 num_cmpl = 0;
1439         u16 end_idx;
1440
1441         while ((txcp = be_tx_compl_get(tx_cq))) {
1442                 end_idx = AMAP_GET_BITS(struct amap_eth_tx_compl,
1443                                         wrb_index, txcp);
1444                 be_tx_compl_process(adapter, end_idx);
1445                 num_cmpl++;
1446         }
1447
1448         if (num_cmpl) {
1449                 be_cq_notify(adapter, tx_cq->id, true, num_cmpl);
1450
1451                 /* As Tx wrbs have been freed up, wake up netdev queue if
1452                  * it was stopped due to lack of tx wrbs.
1453                  */
1454                 if (netif_queue_stopped(adapter->netdev) &&
1455                         atomic_read(&txq->used) < txq->len / 2) {
1456                         netif_wake_queue(adapter->netdev);
1457                 }
1458
1459                 drvr_stats(adapter)->be_tx_events++;
1460                 drvr_stats(adapter)->be_tx_compl += num_cmpl;
1461         }
1462 }
1463
1464 /* As TX and MCC share the same EQ check for both TX and MCC completions.
1465  * For TX/MCC we don't honour budget; consume everything
1466  */
1467 static int be_poll_tx_mcc(struct napi_struct *napi, int budget)
1468 {
1469         struct be_eq_obj *tx_eq = container_of(napi, struct be_eq_obj, napi);
1470         struct be_adapter *adapter =
1471                 container_of(tx_eq, struct be_adapter, tx_eq);
1472
1473         napi_complete(napi);
1474
1475         be_process_tx(adapter);
1476
1477         be_process_mcc(adapter);
1478
1479         return 1;
1480 }
1481
1482 static void be_worker(struct work_struct *work)
1483 {
1484         struct be_adapter *adapter =
1485                 container_of(work, struct be_adapter, work.work);
1486
1487         be_cmd_get_stats(adapter, &adapter->stats.cmd);
1488
1489         /* Set EQ delay */
1490         be_rx_eqd_update(adapter);
1491
1492         be_tx_rate_update(adapter);
1493         be_rx_rate_update(adapter);
1494
1495         if (adapter->rx_post_starved) {
1496                 adapter->rx_post_starved = false;
1497                 be_post_rx_frags(adapter);
1498         }
1499
1500         schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000));
1501 }
1502
1503 static void be_msix_disable(struct be_adapter *adapter)
1504 {
1505         if (adapter->msix_enabled) {
1506                 pci_disable_msix(adapter->pdev);
1507                 adapter->msix_enabled = false;
1508         }
1509 }
1510
1511 static void be_msix_enable(struct be_adapter *adapter)
1512 {
1513         int i, status;
1514
1515         for (i = 0; i < BE_NUM_MSIX_VECTORS; i++)
1516                 adapter->msix_entries[i].entry = i;
1517
1518         status = pci_enable_msix(adapter->pdev, adapter->msix_entries,
1519                 BE_NUM_MSIX_VECTORS);
1520         if (status == 0)
1521                 adapter->msix_enabled = true;
1522         return;
1523 }
1524
1525 static inline int be_msix_vec_get(struct be_adapter *adapter, u32 eq_id)
1526 {
1527         return adapter->msix_entries[
1528                         be_evt_bit_get(adapter, eq_id)].vector;
1529 }
1530
1531 static int be_request_irq(struct be_adapter *adapter,
1532                 struct be_eq_obj *eq_obj,
1533                 void *handler, char *desc)
1534 {
1535         struct net_device *netdev = adapter->netdev;
1536         int vec;
1537
1538         sprintf(eq_obj->desc, "%s-%s", netdev->name, desc);
1539         vec = be_msix_vec_get(adapter, eq_obj->q.id);
1540         return request_irq(vec, handler, 0, eq_obj->desc, adapter);
1541 }
1542
1543 static void be_free_irq(struct be_adapter *adapter, struct be_eq_obj *eq_obj)
1544 {
1545         int vec = be_msix_vec_get(adapter, eq_obj->q.id);
1546         free_irq(vec, adapter);
1547 }
1548
1549 static int be_msix_register(struct be_adapter *adapter)
1550 {
1551         int status;
1552
1553         status = be_request_irq(adapter, &adapter->tx_eq, be_msix_tx_mcc, "tx");
1554         if (status)
1555                 goto err;
1556
1557         status = be_request_irq(adapter, &adapter->rx_eq, be_msix_rx, "rx");
1558         if (status)
1559                 goto free_tx_irq;
1560
1561         return 0;
1562
1563 free_tx_irq:
1564         be_free_irq(adapter, &adapter->tx_eq);
1565 err:
1566         dev_warn(&adapter->pdev->dev,
1567                 "MSIX Request IRQ failed - err %d\n", status);
1568         pci_disable_msix(adapter->pdev);
1569         adapter->msix_enabled = false;
1570         return status;
1571 }
1572
1573 static int be_irq_register(struct be_adapter *adapter)
1574 {
1575         struct net_device *netdev = adapter->netdev;
1576         int status;
1577
1578         if (adapter->msix_enabled) {
1579                 status = be_msix_register(adapter);
1580                 if (status == 0)
1581                         goto done;
1582         }
1583
1584         /* INTx */
1585         netdev->irq = adapter->pdev->irq;
1586         status = request_irq(netdev->irq, be_intx, IRQF_SHARED, netdev->name,
1587                         adapter);
1588         if (status) {
1589                 dev_err(&adapter->pdev->dev,
1590                         "INTx request IRQ failed - err %d\n", status);
1591                 return status;
1592         }
1593 done:
1594         adapter->isr_registered = true;
1595         return 0;
1596 }
1597
1598 static void be_irq_unregister(struct be_adapter *adapter)
1599 {
1600         struct net_device *netdev = adapter->netdev;
1601
1602         if (!adapter->isr_registered)
1603                 return;
1604
1605         /* INTx */
1606         if (!adapter->msix_enabled) {
1607                 free_irq(netdev->irq, adapter);
1608                 goto done;
1609         }
1610
1611         /* MSIx */
1612         be_free_irq(adapter, &adapter->tx_eq);
1613         be_free_irq(adapter, &adapter->rx_eq);
1614 done:
1615         adapter->isr_registered = false;
1616         return;
1617 }
1618
1619 static int be_open(struct net_device *netdev)
1620 {
1621         struct be_adapter *adapter = netdev_priv(netdev);
1622         struct be_eq_obj *rx_eq = &adapter->rx_eq;
1623         struct be_eq_obj *tx_eq = &adapter->tx_eq;
1624         bool link_up;
1625         int status;
1626         u8 mac_speed;
1627         u16 link_speed;
1628
1629         /* First time posting */
1630         be_post_rx_frags(adapter);
1631
1632         napi_enable(&rx_eq->napi);
1633         napi_enable(&tx_eq->napi);
1634
1635         be_irq_register(adapter);
1636
1637         be_intr_set(adapter, true);
1638
1639         /* The evt queues are created in unarmed state; arm them */
1640         be_eq_notify(adapter, rx_eq->q.id, true, false, 0);
1641         be_eq_notify(adapter, tx_eq->q.id, true, false, 0);
1642
1643         /* Rx compl queue may be in unarmed state; rearm it */
1644         be_cq_notify(adapter, adapter->rx_obj.cq.id, true, 0);
1645
1646         status = be_cmd_link_status_query(adapter, &link_up, &mac_speed,
1647                         &link_speed);
1648         if (status)
1649                 goto ret_sts;
1650         be_link_status_update(adapter, link_up);
1651
1652         status = be_vid_config(adapter);
1653         if (status)
1654                 goto ret_sts;
1655
1656         status = be_cmd_set_flow_control(adapter,
1657                                         adapter->tx_fc, adapter->rx_fc);
1658         if (status)
1659                 goto ret_sts;
1660
1661         schedule_delayed_work(&adapter->work, msecs_to_jiffies(100));
1662 ret_sts:
1663         return status;
1664 }
1665
1666 static int be_setup_wol(struct be_adapter *adapter, bool enable)
1667 {
1668         struct be_dma_mem cmd;
1669         int status = 0;
1670         u8 mac[ETH_ALEN];
1671
1672         memset(mac, 0, ETH_ALEN);
1673
1674         cmd.size = sizeof(struct be_cmd_req_acpi_wol_magic_config);
1675         cmd.va = pci_alloc_consistent(adapter->pdev, cmd.size, &cmd.dma);
1676         if (cmd.va == NULL)
1677                 return -1;
1678         memset(cmd.va, 0, cmd.size);
1679
1680         if (enable) {
1681                 status = pci_write_config_dword(adapter->pdev,
1682                         PCICFG_PM_CONTROL_OFFSET, PCICFG_PM_CONTROL_MASK);
1683                 if (status) {
1684                         dev_err(&adapter->pdev->dev,
1685                                 "Could not enable Wake-on-lan \n");
1686                         pci_free_consistent(adapter->pdev, cmd.size, cmd.va,
1687                                         cmd.dma);
1688                         return status;
1689                 }
1690                 status = be_cmd_enable_magic_wol(adapter,
1691                                 adapter->netdev->dev_addr, &cmd);
1692                 pci_enable_wake(adapter->pdev, PCI_D3hot, 1);
1693                 pci_enable_wake(adapter->pdev, PCI_D3cold, 1);
1694         } else {
1695                 status = be_cmd_enable_magic_wol(adapter, mac, &cmd);
1696                 pci_enable_wake(adapter->pdev, PCI_D3hot, 0);
1697                 pci_enable_wake(adapter->pdev, PCI_D3cold, 0);
1698         }
1699
1700         pci_free_consistent(adapter->pdev, cmd.size, cmd.va, cmd.dma);
1701         return status;
1702 }
1703
1704 static int be_setup(struct be_adapter *adapter)
1705 {
1706         struct net_device *netdev = adapter->netdev;
1707         u32 cap_flags, en_flags;
1708         int status;
1709
1710         cap_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST |
1711                         BE_IF_FLAGS_MCAST_PROMISCUOUS |
1712                         BE_IF_FLAGS_PROMISCUOUS |
1713                         BE_IF_FLAGS_PASS_L3L4_ERRORS;
1714         en_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST |
1715                         BE_IF_FLAGS_PASS_L3L4_ERRORS;
1716
1717         status = be_cmd_if_create(adapter, cap_flags, en_flags,
1718                         netdev->dev_addr, false/* pmac_invalid */,
1719                         &adapter->if_handle, &adapter->pmac_id);
1720         if (status != 0)
1721                 goto do_none;
1722
1723         status = be_tx_queues_create(adapter);
1724         if (status != 0)
1725                 goto if_destroy;
1726
1727         status = be_rx_queues_create(adapter);
1728         if (status != 0)
1729                 goto tx_qs_destroy;
1730
1731         status = be_mcc_queues_create(adapter);
1732         if (status != 0)
1733                 goto rx_qs_destroy;
1734
1735         adapter->link_speed = -1;
1736
1737         return 0;
1738
1739 rx_qs_destroy:
1740         be_rx_queues_destroy(adapter);
1741 tx_qs_destroy:
1742         be_tx_queues_destroy(adapter);
1743 if_destroy:
1744         be_cmd_if_destroy(adapter, adapter->if_handle);
1745 do_none:
1746         return status;
1747 }
1748
1749 static int be_clear(struct be_adapter *adapter)
1750 {
1751         be_mcc_queues_destroy(adapter);
1752         be_rx_queues_destroy(adapter);
1753         be_tx_queues_destroy(adapter);
1754
1755         be_cmd_if_destroy(adapter, adapter->if_handle);
1756
1757         /* tell fw we're done with firing cmds */
1758         be_cmd_fw_clean(adapter);
1759         return 0;
1760 }
1761
1762 static int be_close(struct net_device *netdev)
1763 {
1764         struct be_adapter *adapter = netdev_priv(netdev);
1765         struct be_eq_obj *rx_eq = &adapter->rx_eq;
1766         struct be_eq_obj *tx_eq = &adapter->tx_eq;
1767         int vec;
1768
1769         cancel_delayed_work_sync(&adapter->work);
1770
1771         netif_stop_queue(netdev);
1772         netif_carrier_off(netdev);
1773         adapter->link_up = false;
1774
1775         be_intr_set(adapter, false);
1776
1777         if (adapter->msix_enabled) {
1778                 vec = be_msix_vec_get(adapter, tx_eq->q.id);
1779                 synchronize_irq(vec);
1780                 vec = be_msix_vec_get(adapter, rx_eq->q.id);
1781                 synchronize_irq(vec);
1782         } else {
1783                 synchronize_irq(netdev->irq);
1784         }
1785         be_irq_unregister(adapter);
1786
1787         napi_disable(&rx_eq->napi);
1788         napi_disable(&tx_eq->napi);
1789
1790         /* Wait for all pending tx completions to arrive so that
1791          * all tx skbs are freed.
1792          */
1793         be_tx_compl_clean(adapter);
1794
1795         return 0;
1796 }
1797
1798 #define FW_FILE_HDR_SIGN        "ServerEngines Corp. "
1799 char flash_cookie[2][16] =      {"*** SE FLAS",
1800                                 "H DIRECTORY *** "};
1801
1802 static bool be_flash_redboot(struct be_adapter *adapter,
1803                         const u8 *p, u32 img_start, int image_size,
1804                         int hdr_size)
1805 {
1806         u32 crc_offset;
1807         u8 flashed_crc[4];
1808         int status;
1809
1810         crc_offset = hdr_size + img_start + image_size - 4;
1811
1812         p += crc_offset;
1813
1814         status = be_cmd_get_flash_crc(adapter, flashed_crc,
1815                         (img_start + image_size - 4));
1816         if (status) {
1817                 dev_err(&adapter->pdev->dev,
1818                 "could not get crc from flash, not flashing redboot\n");
1819                 return false;
1820         }
1821
1822         /*update redboot only if crc does not match*/
1823         if (!memcmp(flashed_crc, p, 4))
1824                 return false;
1825         else
1826                 return true;
1827 }
1828
1829 static int be_flash_data(struct be_adapter *adapter,
1830                         const struct firmware *fw,
1831                         struct be_dma_mem *flash_cmd, int num_of_images)
1832
1833 {
1834         int status = 0, i, filehdr_size = 0;
1835         u32 total_bytes = 0, flash_op;
1836         int num_bytes;
1837         const u8 *p = fw->data;
1838         struct be_cmd_write_flashrom *req = flash_cmd->va;
1839         struct flash_comp *pflashcomp;
1840
1841         struct flash_comp gen3_flash_types[8] = {
1842                 { FLASH_iSCSI_PRIMARY_IMAGE_START_g3, IMG_TYPE_ISCSI_ACTIVE,
1843                         FLASH_IMAGE_MAX_SIZE_g3},
1844                 { FLASH_REDBOOT_START_g3, IMG_TYPE_REDBOOT,
1845                         FLASH_REDBOOT_IMAGE_MAX_SIZE_g3},
1846                 { FLASH_iSCSI_BIOS_START_g3, IMG_TYPE_BIOS,
1847                         FLASH_BIOS_IMAGE_MAX_SIZE_g3},
1848                 { FLASH_PXE_BIOS_START_g3, IMG_TYPE_PXE_BIOS,
1849                         FLASH_BIOS_IMAGE_MAX_SIZE_g3},
1850                 { FLASH_FCoE_BIOS_START_g3, IMG_TYPE_FCOE_BIOS,
1851                         FLASH_BIOS_IMAGE_MAX_SIZE_g3},
1852                 { FLASH_iSCSI_BACKUP_IMAGE_START_g3, IMG_TYPE_ISCSI_BACKUP,
1853                         FLASH_IMAGE_MAX_SIZE_g3},
1854                 { FLASH_FCoE_PRIMARY_IMAGE_START_g3, IMG_TYPE_FCOE_FW_ACTIVE,
1855                         FLASH_IMAGE_MAX_SIZE_g3},
1856                 { FLASH_FCoE_BACKUP_IMAGE_START_g3, IMG_TYPE_FCOE_FW_BACKUP,
1857                         FLASH_IMAGE_MAX_SIZE_g3}
1858         };
1859         struct flash_comp gen2_flash_types[8] = {
1860                 { FLASH_iSCSI_PRIMARY_IMAGE_START_g2, IMG_TYPE_ISCSI_ACTIVE,
1861                         FLASH_IMAGE_MAX_SIZE_g2},
1862                 { FLASH_REDBOOT_START_g2, IMG_TYPE_REDBOOT,
1863                         FLASH_REDBOOT_IMAGE_MAX_SIZE_g2},
1864                 { FLASH_iSCSI_BIOS_START_g2, IMG_TYPE_BIOS,
1865                         FLASH_BIOS_IMAGE_MAX_SIZE_g2},
1866                 { FLASH_PXE_BIOS_START_g2, IMG_TYPE_PXE_BIOS,
1867                         FLASH_BIOS_IMAGE_MAX_SIZE_g2},
1868                 { FLASH_FCoE_BIOS_START_g2, IMG_TYPE_FCOE_BIOS,
1869                         FLASH_BIOS_IMAGE_MAX_SIZE_g2},
1870                 { FLASH_iSCSI_BACKUP_IMAGE_START_g2, IMG_TYPE_ISCSI_BACKUP,
1871                         FLASH_IMAGE_MAX_SIZE_g2},
1872                 { FLASH_FCoE_PRIMARY_IMAGE_START_g2, IMG_TYPE_FCOE_FW_ACTIVE,
1873                         FLASH_IMAGE_MAX_SIZE_g2},
1874                 { FLASH_FCoE_BACKUP_IMAGE_START_g2, IMG_TYPE_FCOE_FW_BACKUP,
1875                          FLASH_IMAGE_MAX_SIZE_g2}
1876         };
1877
1878         if (adapter->generation == BE_GEN3) {
1879                 pflashcomp = gen3_flash_types;
1880                 filehdr_size = sizeof(struct flash_file_hdr_g3);
1881         } else {
1882                 pflashcomp = gen2_flash_types;
1883                 filehdr_size = sizeof(struct flash_file_hdr_g2);
1884         }
1885         for (i = 0; i < 8; i++) {
1886                 if ((pflashcomp[i].optype == IMG_TYPE_REDBOOT) &&
1887                         (!be_flash_redboot(adapter, fw->data,
1888                          pflashcomp[i].offset, pflashcomp[i].size,
1889                          filehdr_size)))
1890                         continue;
1891                 p = fw->data;
1892                 p += filehdr_size + pflashcomp[i].offset
1893                         + (num_of_images * sizeof(struct image_hdr));
1894         if (p + pflashcomp[i].size > fw->data + fw->size)
1895                 return -1;
1896         total_bytes = pflashcomp[i].size;
1897                 while (total_bytes) {
1898                         if (total_bytes > 32*1024)
1899                                 num_bytes = 32*1024;
1900                         else
1901                                 num_bytes = total_bytes;
1902                         total_bytes -= num_bytes;
1903
1904                         if (!total_bytes)
1905                                 flash_op = FLASHROM_OPER_FLASH;
1906                         else
1907                                 flash_op = FLASHROM_OPER_SAVE;
1908                         memcpy(req->params.data_buf, p, num_bytes);
1909                         p += num_bytes;
1910                         status = be_cmd_write_flashrom(adapter, flash_cmd,
1911                                 pflashcomp[i].optype, flash_op, num_bytes);
1912                         if (status) {
1913                                 dev_err(&adapter->pdev->dev,
1914                                         "cmd to write to flash rom failed.\n");
1915                                 return -1;
1916                         }
1917                         yield();
1918                 }
1919         }
1920         return 0;
1921 }
1922
1923 static int get_ufigen_type(struct flash_file_hdr_g2 *fhdr)
1924 {
1925         if (fhdr == NULL)
1926                 return 0;
1927         if (fhdr->build[0] == '3')
1928                 return BE_GEN3;
1929         else if (fhdr->build[0] == '2')
1930                 return BE_GEN2;
1931         else
1932                 return 0;
1933 }
1934
1935 int be_load_fw(struct be_adapter *adapter, u8 *func)
1936 {
1937         char fw_file[ETHTOOL_FLASH_MAX_FILENAME];
1938         const struct firmware *fw;
1939         struct flash_file_hdr_g2 *fhdr;
1940         struct flash_file_hdr_g3 *fhdr3;
1941         struct image_hdr *img_hdr_ptr = NULL;
1942         struct be_dma_mem flash_cmd;
1943         int status, i = 0;
1944         const u8 *p;
1945         char fw_ver[FW_VER_LEN];
1946         char fw_cfg;
1947
1948         status = be_cmd_get_fw_ver(adapter, fw_ver);
1949         if (status)
1950                 return status;
1951
1952         fw_cfg = *(fw_ver + 2);
1953         if (fw_cfg == '0')
1954                 fw_cfg = '1';
1955         strcpy(fw_file, func);
1956
1957         status = request_firmware(&fw, fw_file, &adapter->pdev->dev);
1958         if (status)
1959                 goto fw_exit;
1960
1961         p = fw->data;
1962         fhdr = (struct flash_file_hdr_g2 *) p;
1963         dev_info(&adapter->pdev->dev, "Flashing firmware file %s\n", fw_file);
1964
1965         flash_cmd.size = sizeof(struct be_cmd_write_flashrom) + 32*1024;
1966         flash_cmd.va = pci_alloc_consistent(adapter->pdev, flash_cmd.size,
1967                                         &flash_cmd.dma);
1968         if (!flash_cmd.va) {
1969                 status = -ENOMEM;
1970                 dev_err(&adapter->pdev->dev,
1971                         "Memory allocation failure while flashing\n");
1972                 goto fw_exit;
1973         }
1974
1975         if ((adapter->generation == BE_GEN3) &&
1976                         (get_ufigen_type(fhdr) == BE_GEN3)) {
1977                 fhdr3 = (struct flash_file_hdr_g3 *) fw->data;
1978                 for (i = 0; i < fhdr3->num_imgs; i++) {
1979                         img_hdr_ptr = (struct image_hdr *) (fw->data +
1980                                         (sizeof(struct flash_file_hdr_g3) +
1981                                         i * sizeof(struct image_hdr)));
1982                         if (img_hdr_ptr->imageid == 1) {
1983                                 status = be_flash_data(adapter, fw,
1984                                                 &flash_cmd, fhdr3->num_imgs);
1985                         }
1986
1987                 }
1988         } else if ((adapter->generation == BE_GEN2) &&
1989                         (get_ufigen_type(fhdr) == BE_GEN2)) {
1990                 status = be_flash_data(adapter, fw, &flash_cmd, 0);
1991         } else {
1992                 dev_err(&adapter->pdev->dev,
1993                         "UFI and Interface are not compatible for flashing\n");
1994                 status = -1;
1995         }
1996
1997         pci_free_consistent(adapter->pdev, flash_cmd.size, flash_cmd.va,
1998                                 flash_cmd.dma);
1999         if (status) {
2000                 dev_err(&adapter->pdev->dev, "Firmware load error\n");
2001                 goto fw_exit;
2002         }
2003
2004         dev_info(&adapter->pdev->dev, "Firmware flashed successfully\n");
2005
2006 fw_exit:
2007         release_firmware(fw);
2008         return status;
2009 }
2010
2011 static struct net_device_ops be_netdev_ops = {
2012         .ndo_open               = be_open,
2013         .ndo_stop               = be_close,
2014         .ndo_start_xmit         = be_xmit,
2015         .ndo_get_stats          = be_get_stats,
2016         .ndo_set_rx_mode        = be_set_multicast_list,
2017         .ndo_set_mac_address    = be_mac_addr_set,
2018         .ndo_change_mtu         = be_change_mtu,
2019         .ndo_validate_addr      = eth_validate_addr,
2020         .ndo_vlan_rx_register   = be_vlan_register,
2021         .ndo_vlan_rx_add_vid    = be_vlan_add_vid,
2022         .ndo_vlan_rx_kill_vid   = be_vlan_rem_vid,
2023 };
2024
2025 static void be_netdev_init(struct net_device *netdev)
2026 {
2027         struct be_adapter *adapter = netdev_priv(netdev);
2028
2029         netdev->features |= NETIF_F_SG | NETIF_F_HW_VLAN_RX | NETIF_F_TSO |
2030                 NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_FILTER | NETIF_F_HW_CSUM |
2031                 NETIF_F_GRO;
2032
2033         netdev->vlan_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_HW_CSUM;
2034
2035         netdev->flags |= IFF_MULTICAST;
2036
2037         adapter->rx_csum = true;
2038
2039         /* Default settings for Rx and Tx flow control */
2040         adapter->rx_fc = true;
2041         adapter->tx_fc = true;
2042
2043         netif_set_gso_max_size(netdev, 65535);
2044
2045         BE_SET_NETDEV_OPS(netdev, &be_netdev_ops);
2046
2047         SET_ETHTOOL_OPS(netdev, &be_ethtool_ops);
2048
2049         netif_napi_add(netdev, &adapter->rx_eq.napi, be_poll_rx,
2050                 BE_NAPI_WEIGHT);
2051         netif_napi_add(netdev, &adapter->tx_eq.napi, be_poll_tx_mcc,
2052                 BE_NAPI_WEIGHT);
2053
2054         netif_carrier_off(netdev);
2055         netif_stop_queue(netdev);
2056 }
2057
2058 static void be_unmap_pci_bars(struct be_adapter *adapter)
2059 {
2060         if (adapter->csr)
2061                 iounmap(adapter->csr);
2062         if (adapter->db)
2063                 iounmap(adapter->db);
2064         if (adapter->pcicfg)
2065                 iounmap(adapter->pcicfg);
2066 }
2067
2068 static int be_map_pci_bars(struct be_adapter *adapter)
2069 {
2070         u8 __iomem *addr;
2071         int pcicfg_reg;
2072
2073         addr = ioremap_nocache(pci_resource_start(adapter->pdev, 2),
2074                         pci_resource_len(adapter->pdev, 2));
2075         if (addr == NULL)
2076                 return -ENOMEM;
2077         adapter->csr = addr;
2078
2079         addr = ioremap_nocache(pci_resource_start(adapter->pdev, 4),
2080                         128 * 1024);
2081         if (addr == NULL)
2082                 goto pci_map_err;
2083         adapter->db = addr;
2084
2085         if (adapter->generation == BE_GEN2)
2086                 pcicfg_reg = 1;
2087         else
2088                 pcicfg_reg = 0;
2089
2090         addr = ioremap_nocache(pci_resource_start(adapter->pdev, pcicfg_reg),
2091                         pci_resource_len(adapter->pdev, pcicfg_reg));
2092         if (addr == NULL)
2093                 goto pci_map_err;
2094         adapter->pcicfg = addr;
2095
2096         return 0;
2097 pci_map_err:
2098         be_unmap_pci_bars(adapter);
2099         return -ENOMEM;
2100 }
2101
2102
2103 static void be_ctrl_cleanup(struct be_adapter *adapter)
2104 {
2105         struct be_dma_mem *mem = &adapter->mbox_mem_alloced;
2106
2107         be_unmap_pci_bars(adapter);
2108
2109         if (mem->va)
2110                 pci_free_consistent(adapter->pdev, mem->size,
2111                         mem->va, mem->dma);
2112
2113         mem = &adapter->mc_cmd_mem;
2114         if (mem->va)
2115                 pci_free_consistent(adapter->pdev, mem->size,
2116                         mem->va, mem->dma);
2117 }
2118
2119 static int be_ctrl_init(struct be_adapter *adapter)
2120 {
2121         struct be_dma_mem *mbox_mem_alloc = &adapter->mbox_mem_alloced;
2122         struct be_dma_mem *mbox_mem_align = &adapter->mbox_mem;
2123         struct be_dma_mem *mc_cmd_mem = &adapter->mc_cmd_mem;
2124         int status;
2125
2126         status = be_map_pci_bars(adapter);
2127         if (status)
2128                 goto done;
2129
2130         mbox_mem_alloc->size = sizeof(struct be_mcc_mailbox) + 16;
2131         mbox_mem_alloc->va = pci_alloc_consistent(adapter->pdev,
2132                                 mbox_mem_alloc->size, &mbox_mem_alloc->dma);
2133         if (!mbox_mem_alloc->va) {
2134                 status = -ENOMEM;
2135                 goto unmap_pci_bars;
2136         }
2137
2138         mbox_mem_align->size = sizeof(struct be_mcc_mailbox);
2139         mbox_mem_align->va = PTR_ALIGN(mbox_mem_alloc->va, 16);
2140         mbox_mem_align->dma = PTR_ALIGN(mbox_mem_alloc->dma, 16);
2141         memset(mbox_mem_align->va, 0, sizeof(struct be_mcc_mailbox));
2142
2143         mc_cmd_mem->size = sizeof(struct be_cmd_req_mcast_mac_config);
2144         mc_cmd_mem->va = pci_alloc_consistent(adapter->pdev, mc_cmd_mem->size,
2145                         &mc_cmd_mem->dma);
2146         if (mc_cmd_mem->va == NULL) {
2147                 status = -ENOMEM;
2148                 goto free_mbox;
2149         }
2150         memset(mc_cmd_mem->va, 0, mc_cmd_mem->size);
2151
2152         spin_lock_init(&adapter->mbox_lock);
2153         spin_lock_init(&adapter->mcc_lock);
2154         spin_lock_init(&adapter->mcc_cq_lock);
2155
2156         return 0;
2157
2158 free_mbox:
2159         pci_free_consistent(adapter->pdev, mbox_mem_alloc->size,
2160                 mbox_mem_alloc->va, mbox_mem_alloc->dma);
2161
2162 unmap_pci_bars:
2163         be_unmap_pci_bars(adapter);
2164
2165 done:
2166         return status;
2167 }
2168
2169 static void be_stats_cleanup(struct be_adapter *adapter)
2170 {
2171         struct be_stats_obj *stats = &adapter->stats;
2172         struct be_dma_mem *cmd = &stats->cmd;
2173
2174         if (cmd->va)
2175                 pci_free_consistent(adapter->pdev, cmd->size,
2176                         cmd->va, cmd->dma);
2177 }
2178
2179 static int be_stats_init(struct be_adapter *adapter)
2180 {
2181         struct be_stats_obj *stats = &adapter->stats;
2182         struct be_dma_mem *cmd = &stats->cmd;
2183
2184         cmd->size = sizeof(struct be_cmd_req_get_stats);
2185         cmd->va = pci_alloc_consistent(adapter->pdev, cmd->size, &cmd->dma);
2186         if (cmd->va == NULL)
2187                 return -1;
2188         memset(cmd->va, 0, cmd->size);
2189         return 0;
2190 }
2191
2192 static void __devexit be_remove(struct pci_dev *pdev)
2193 {
2194         struct be_adapter *adapter = pci_get_drvdata(pdev);
2195
2196         if (!adapter)
2197                 return;
2198
2199         unregister_netdev(adapter->netdev);
2200
2201         be_clear(adapter);
2202
2203         be_stats_cleanup(adapter);
2204
2205         be_ctrl_cleanup(adapter);
2206
2207         be_msix_disable(adapter);
2208
2209         pci_set_drvdata(pdev, NULL);
2210         pci_release_regions(pdev);
2211         pci_disable_device(pdev);
2212
2213         free_netdev(adapter->netdev);
2214 }
2215
2216 static int be_get_config(struct be_adapter *adapter)
2217 {
2218         int status;
2219         u8 mac[ETH_ALEN];
2220
2221         status = be_cmd_get_fw_ver(adapter, adapter->fw_ver);
2222         if (status)
2223                 return status;
2224
2225         status = be_cmd_query_fw_cfg(adapter,
2226                                 &adapter->port_num, &adapter->cap);
2227         if (status)
2228                 return status;
2229
2230         memset(mac, 0, ETH_ALEN);
2231         status = be_cmd_mac_addr_query(adapter, mac,
2232                         MAC_ADDRESS_TYPE_NETWORK, true /*permanent */, 0);
2233         if (status)
2234                 return status;
2235
2236         if (!is_valid_ether_addr(mac))
2237                 return -EADDRNOTAVAIL;
2238
2239         memcpy(adapter->netdev->dev_addr, mac, ETH_ALEN);
2240         memcpy(adapter->netdev->perm_addr, mac, ETH_ALEN);
2241
2242         return 0;
2243 }
2244
2245 static int __devinit be_probe(struct pci_dev *pdev,
2246                         const struct pci_device_id *pdev_id)
2247 {
2248         int status = 0;
2249         struct be_adapter *adapter;
2250         struct net_device *netdev;
2251
2252         status = pci_enable_device(pdev);
2253         if (status)
2254                 goto do_none;
2255
2256         status = pci_request_regions(pdev, DRV_NAME);
2257         if (status)
2258                 goto disable_dev;
2259         pci_set_master(pdev);
2260
2261         netdev = alloc_etherdev(sizeof(struct be_adapter));
2262         if (netdev == NULL) {
2263                 status = -ENOMEM;
2264                 goto rel_reg;
2265         }
2266         adapter = netdev_priv(netdev);
2267
2268         switch (pdev->device) {
2269         case BE_DEVICE_ID1:
2270         case OC_DEVICE_ID1:
2271                 adapter->generation = BE_GEN2;
2272                 break;
2273         case BE_DEVICE_ID2:
2274         case OC_DEVICE_ID2:
2275                 adapter->generation = BE_GEN3;
2276                 break;
2277         default:
2278                 adapter->generation = 0;
2279         }
2280
2281         adapter->pdev = pdev;
2282         pci_set_drvdata(pdev, adapter);
2283         adapter->netdev = netdev;
2284         be_netdev_init(netdev);
2285         SET_NETDEV_DEV(netdev, &pdev->dev);
2286
2287         be_msix_enable(adapter);
2288
2289         status = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
2290         if (!status) {
2291                 netdev->features |= NETIF_F_HIGHDMA;
2292         } else {
2293                 status = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
2294                 if (status) {
2295                         dev_err(&pdev->dev, "Could not set PCI DMA Mask\n");
2296                         goto free_netdev;
2297                 }
2298         }
2299
2300         status = be_ctrl_init(adapter);
2301         if (status)
2302                 goto free_netdev;
2303
2304         /* sync up with fw's ready state */
2305         status = be_cmd_POST(adapter);
2306         if (status)
2307                 goto ctrl_clean;
2308
2309         /* tell fw we're ready to fire cmds */
2310         status = be_cmd_fw_init(adapter);
2311         if (status)
2312                 goto ctrl_clean;
2313
2314         status = be_cmd_reset_function(adapter);
2315         if (status)
2316                 goto ctrl_clean;
2317
2318         status = be_stats_init(adapter);
2319         if (status)
2320                 goto ctrl_clean;
2321
2322         status = be_get_config(adapter);
2323         if (status)
2324                 goto stats_clean;
2325
2326         INIT_DELAYED_WORK(&adapter->work, be_worker);
2327
2328         status = be_setup(adapter);
2329         if (status)
2330                 goto stats_clean;
2331
2332         status = register_netdev(netdev);
2333         if (status != 0)
2334                 goto unsetup;
2335
2336         dev_info(&pdev->dev, "%s port %d\n", nic_name(pdev), adapter->port_num);
2337         return 0;
2338
2339 unsetup:
2340         be_clear(adapter);
2341 stats_clean:
2342         be_stats_cleanup(adapter);
2343 ctrl_clean:
2344         be_ctrl_cleanup(adapter);
2345 free_netdev:
2346         be_msix_disable(adapter);
2347         free_netdev(adapter->netdev);
2348         pci_set_drvdata(pdev, NULL);
2349 rel_reg:
2350         pci_release_regions(pdev);
2351 disable_dev:
2352         pci_disable_device(pdev);
2353 do_none:
2354         dev_err(&pdev->dev, "%s initialization failed\n", nic_name(pdev));
2355         return status;
2356 }
2357
2358 static int be_suspend(struct pci_dev *pdev, pm_message_t state)
2359 {
2360         struct be_adapter *adapter = pci_get_drvdata(pdev);
2361         struct net_device *netdev =  adapter->netdev;
2362
2363         if (adapter->wol)
2364                 be_setup_wol(adapter, true);
2365
2366         netif_device_detach(netdev);
2367         if (netif_running(netdev)) {
2368                 rtnl_lock();
2369                 be_close(netdev);
2370                 rtnl_unlock();
2371         }
2372         be_cmd_get_flow_control(adapter, &adapter->tx_fc, &adapter->rx_fc);
2373         be_clear(adapter);
2374
2375         pci_save_state(pdev);
2376         pci_disable_device(pdev);
2377         pci_set_power_state(pdev, pci_choose_state(pdev, state));
2378         return 0;
2379 }
2380
2381 static int be_resume(struct pci_dev *pdev)
2382 {
2383         int status = 0;
2384         struct be_adapter *adapter = pci_get_drvdata(pdev);
2385         struct net_device *netdev =  adapter->netdev;
2386
2387         netif_device_detach(netdev);
2388
2389         status = pci_enable_device(pdev);
2390         if (status)
2391                 return status;
2392
2393         pci_set_power_state(pdev, 0);
2394         pci_restore_state(pdev);
2395
2396         /* tell fw we're ready to fire cmds */
2397         status = be_cmd_fw_init(adapter);
2398         if (status)
2399                 return status;
2400
2401         be_setup(adapter);
2402         if (netif_running(netdev)) {
2403                 rtnl_lock();
2404                 be_open(netdev);
2405                 rtnl_unlock();
2406         }
2407         netif_device_attach(netdev);
2408
2409         if (adapter->wol)
2410                 be_setup_wol(adapter, false);
2411         return 0;
2412 }
2413
2414 static struct pci_driver be_driver = {
2415         .name = DRV_NAME,
2416         .id_table = be_dev_ids,
2417         .probe = be_probe,
2418         .remove = be_remove,
2419         .suspend = be_suspend,
2420         .resume = be_resume
2421 };
2422
2423 static int __init be_init_module(void)
2424 {
2425         if (rx_frag_size != 8192 && rx_frag_size != 4096 &&
2426             rx_frag_size != 2048) {
2427                 printk(KERN_WARNING DRV_NAME
2428                         " : Module param rx_frag_size must be 2048/4096/8192."
2429                         " Using 2048\n");
2430                 rx_frag_size = 2048;
2431         }
2432
2433         return pci_register_driver(&be_driver);
2434 }
2435 module_init(be_init_module);
2436
2437 static void __exit be_exit_module(void)
2438 {
2439         pci_unregister_driver(&be_driver);
2440 }
2441 module_exit(be_exit_module);