SAFE public projects git trees. - safe/jmp/linux-2.6/blob - 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
  20 MODULE_VERSION(DRV_VER);
  21 MODULE_DEVICE_TABLE(pci, be_dev_ids);
  22 MODULE_DESCRIPTION(DRV_DESC " " DRV_VER);
  23 MODULE_AUTHOR("ServerEngines Corporation");
  24 MODULE_LICENSE("GPL");
  25
  26 static unsigned int rx_frag_size = 2048;
  27 module_param(rx_frag_size, uint, S_IRUGO);
  28 MODULE_PARM_DESC(rx_frag_size, "Size of a fragment that holds rcvd data.");
  29
  30 #define BE_VENDOR_ID            0x19a2
  31 #define BE2_DEVICE_ID_1         0x0211
  32 static DEFINE_PCI_DEVICE_TABLE(be_dev_ids) = {
  33         { PCI_DEVICE(BE_VENDOR_ID, BE2_DEVICE_ID_1) },
  34         { 0 }
  35 };
  36 MODULE_DEVICE_TABLE(pci, be_dev_ids);
  37
  38 static void be_queue_free(struct be_adapter *adapter, struct be_queue_info *q)
  39 {
  40         struct be_dma_mem *mem = &q->dma_mem;
  41         if (mem->va)
  42                 pci_free_consistent(adapter->pdev, mem->size,
  43                         mem->va, mem->dma);
  44 }
  45
  46 static int be_queue_alloc(struct be_adapter *adapter, struct be_queue_info *q,
  47                 u16 len, u16 entry_size)
  48 {
  49         struct be_dma_mem *mem = &q->dma_mem;
  50
  51         memset(q, 0, sizeof(*q));
  52         q->len = len;
  53         q->entry_size = entry_size;
  54         mem->size = len * entry_size;
  55         mem->va = pci_alloc_consistent(adapter->pdev, mem->size, &mem->dma);
  56         if (!mem->va)
  57                 return -1;
  58         memset(mem->va, 0, mem->size);
  59         return 0;
  60 }
  61
  62 static inline void *queue_head_node(struct be_queue_info *q)
  63 {
  64         return q->dma_mem.va + q->head * q->entry_size;
  65 }
  66
  67 static inline void *queue_tail_node(struct be_queue_info *q)
  68 {
  69         return q->dma_mem.va + q->tail * q->entry_size;
  70 }
  71
  72 static inline void queue_head_inc(struct be_queue_info *q)
  73 {
  74         index_inc(&q->head, q->len);
  75 }
  76
  77 static inline void queue_tail_inc(struct be_queue_info *q)
  78 {
  79         index_inc(&q->tail, q->len);
  80 }
  81
  82 static void be_intr_set(struct be_ctrl_info *ctrl, bool enable)
  83 {
  84         u8 __iomem *addr = ctrl->pcicfg + PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET;
  85         u32 reg = ioread32(addr);
  86         u32 enabled = reg & MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
  87         if (!enabled && enable) {
  88                 reg |= MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
  89         } else if (enabled && !enable) {
  90                 reg &= ~MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
  91         } else {
  92                 printk(KERN_WARNING DRV_NAME
  93                         ": bad value in membar_int_ctrl reg=0x%x\n", reg);
  94                 return;
  95         }
  96         iowrite32(reg, addr);
  97 }
  98
  99 static void be_rxq_notify(struct be_ctrl_info *ctrl, u16 qid, u16 posted)
 100 {
 101         u32 val = 0;
 102         val |= qid & DB_RQ_RING_ID_MASK;
 103         val |= posted << DB_RQ_NUM_POSTED_SHIFT;
 104         iowrite32(val, ctrl->db + DB_RQ_OFFSET);
 105 }
 106
 107 static void be_txq_notify(struct be_ctrl_info *ctrl, u16 qid, u16 posted)
 108 {
 109         u32 val = 0;
 110         val |= qid & DB_TXULP_RING_ID_MASK;
 111         val |= (posted & DB_TXULP_NUM_POSTED_MASK) << DB_TXULP_NUM_POSTED_SHIFT;
 112         iowrite32(val, ctrl->db + DB_TXULP1_OFFSET);
 113 }
 114
 115 static void be_eq_notify(struct be_ctrl_info *ctrl, u16 qid,
 116                 bool arm, bool clear_int, u16 num_popped)
 117 {
 118         u32 val = 0;
 119         val |= qid & DB_EQ_RING_ID_MASK;
 120         if (arm)
 121                 val |= 1 << DB_EQ_REARM_SHIFT;
 122         if (clear_int)
 123                 val |= 1 << DB_EQ_CLR_SHIFT;
 124         val |= 1 << DB_EQ_EVNT_SHIFT;
 125         val |= num_popped << DB_EQ_NUM_POPPED_SHIFT;
 126         iowrite32(val, ctrl->db + DB_EQ_OFFSET);
 127 }
 128
 129 static void be_cq_notify(struct be_ctrl_info *ctrl, u16 qid,
 130                 bool arm, u16 num_popped)
 131 {
 132         u32 val = 0;
 133         val |= qid & DB_CQ_RING_ID_MASK;
 134         if (arm)
 135                 val |= 1 << DB_CQ_REARM_SHIFT;
 136         val |= num_popped << DB_CQ_NUM_POPPED_SHIFT;
 137         iowrite32(val, ctrl->db + DB_CQ_OFFSET);
 138 }
 139
 140
 141 static int be_mac_addr_set(struct net_device *netdev, void *p)
 142 {
 143         struct be_adapter *adapter = netdev_priv(netdev);
 144         struct sockaddr *addr = p;
 145         int status = 0;
 146
 147         if (netif_running(netdev)) {
 148                 status = be_cmd_pmac_del(&adapter->ctrl, adapter->if_handle,
 149                                 adapter->pmac_id);
 150                 if (status)
 151                         return status;
 152
 153                 status = be_cmd_pmac_add(&adapter->ctrl, (u8 *)addr->sa_data,
 154                                 adapter->if_handle, &adapter->pmac_id);
 155         }
 156
 157         if (!status)
 158                 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
 159
 160         return status;
 161 }
 162
 163 static void netdev_stats_update(struct be_adapter *adapter)
 164 {
 165         struct be_hw_stats *hw_stats = hw_stats_from_cmd(adapter->stats.cmd.va);
 166         struct be_rxf_stats *rxf_stats = &hw_stats->rxf;
 167         struct be_port_rxf_stats *port_stats =
 168                         &rxf_stats->port[adapter->port_num];
 169         struct net_device_stats *dev_stats = &adapter->stats.net_stats;
 170
 171         dev_stats->rx_packets = port_stats->rx_total_frames;
 172         dev_stats->tx_packets = port_stats->tx_unicastframes +
 173                 port_stats->tx_multicastframes + port_stats->tx_broadcastframes;
 174         dev_stats->rx_bytes = (u64) port_stats->rx_bytes_msd << 32 |
 175                                 (u64) port_stats->rx_bytes_lsd;
 176         dev_stats->tx_bytes = (u64) port_stats->tx_bytes_msd << 32 |
 177                                 (u64) port_stats->tx_bytes_lsd;
 178
 179         /* bad pkts received */
 180         dev_stats->rx_errors = port_stats->rx_crc_errors +
 181                 port_stats->rx_alignment_symbol_errors +
 182                 port_stats->rx_in_range_errors +
 183                 port_stats->rx_out_range_errors + port_stats->rx_frame_too_long;
 184
 185         /*  packet transmit problems */
 186         dev_stats->tx_errors = 0;
 187
 188         /*  no space in linux buffers */
 189         dev_stats->rx_dropped = 0;
 190
 191         /* no space available in linux */
 192         dev_stats->tx_dropped = 0;
 193
 194         dev_stats->multicast = port_stats->tx_multicastframes;
 195         dev_stats->collisions = 0;
 196
 197         /* detailed rx errors */
 198         dev_stats->rx_length_errors = port_stats->rx_in_range_errors +
 199                 port_stats->rx_out_range_errors + port_stats->rx_frame_too_long;
 200         /* receive ring buffer overflow */
 201         dev_stats->rx_over_errors = 0;
 202         dev_stats->rx_crc_errors = port_stats->rx_crc_errors;
 203
 204         /* frame alignment errors */
 205         dev_stats->rx_frame_errors = port_stats->rx_alignment_symbol_errors;
 206         /* receiver fifo overrun */
 207         /* drops_no_pbuf is no per i/f, it's per BE card */
 208         dev_stats->rx_fifo_errors = port_stats->rx_fifo_overflow +
 209                                         port_stats->rx_input_fifo_overflow +
 210                                         rxf_stats->rx_drops_no_pbuf;
 211         /* receiver missed packetd */
 212         dev_stats->rx_missed_errors = 0;
 213         /* detailed tx_errors */
 214         dev_stats->tx_aborted_errors = 0;
 215         dev_stats->tx_carrier_errors = 0;
 216         dev_stats->tx_fifo_errors = 0;
 217         dev_stats->tx_heartbeat_errors = 0;
 218         dev_stats->tx_window_errors = 0;
 219 }
 220
 221 static void be_link_status_update(struct be_adapter *adapter)
 222 {
 223         struct be_link_info *prev = &adapter->link;
 224         struct be_link_info now = { 0 };
 225         struct net_device *netdev = adapter->netdev;
 226
 227         be_cmd_link_status_query(&adapter->ctrl, &now);
 228
 229         /* If link came up or went down */
 230         if (now.speed != prev->speed && (now.speed == PHY_LINK_SPEED_ZERO ||
 231                         prev->speed == PHY_LINK_SPEED_ZERO)) {
 232                 if (now.speed == PHY_LINK_SPEED_ZERO) {
 233                         netif_stop_queue(netdev);
 234                         netif_carrier_off(netdev);
 235                         printk(KERN_INFO "%s: Link down\n", netdev->name);
 236                 } else {
 237                         netif_start_queue(netdev);
 238                         netif_carrier_on(netdev);
 239                         printk(KERN_INFO "%s: Link up\n", netdev->name);
 240                 }
 241         }
 242         *prev = now;
 243 }
 244
 245 /* Update the EQ delay n BE based on the RX frags consumed / sec */
 246 static void be_rx_eqd_update(struct be_adapter *adapter)
 247 {
 248         u32 eqd;
 249         struct be_ctrl_info *ctrl = &adapter->ctrl;
 250         struct be_eq_obj *rx_eq = &adapter->rx_eq;
 251         struct be_drvr_stats *stats = &adapter->stats.drvr_stats;
 252
 253         /* Update once a second */
 254         if (((jiffies - stats->rx_fps_jiffies) < HZ) || rx_eq->enable_aic == 0)
 255                 return;
 256
 257         stats->be_rx_fps = (stats->be_rx_frags - stats->be_prev_rx_frags) /
 258                         ((jiffies - stats->rx_fps_jiffies) / HZ);
 259
 260         stats->rx_fps_jiffies = jiffies;
 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(ctrl, rx_eq->q.id, eqd);
 272
 273         rx_eq->cur_eqd = eqd;
 274 }
 275
 276 static void be_worker(struct work_struct *work)
 277 {
 278         struct be_adapter *adapter =
 279                 container_of(work, struct be_adapter, work.work);
 280         int status;
 281
 282         /* Check link */
 283         be_link_status_update(adapter);
 284
 285         /* Get Stats */
 286         status = be_cmd_get_stats(&adapter->ctrl, &adapter->stats.cmd);
 287         if (!status)
 288                 netdev_stats_update(adapter);
 289
 290         /* Set EQ delay */
 291         be_rx_eqd_update(adapter);
 292
 293         schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000));
 294 }
 295
 296 static struct net_device_stats *be_get_stats(struct net_device *dev)
 297 {
 298         struct be_adapter *adapter = netdev_priv(dev);
 299
 300         return &adapter->stats.net_stats;
 301 }
 302
 303 static void be_tx_stats_update(struct be_adapter *adapter,
 304                         u32 wrb_cnt, u32 copied, bool stopped)
 305 {
 306         struct be_drvr_stats *stats = &adapter->stats.drvr_stats;
 307         stats->be_tx_reqs++;
 308         stats->be_tx_wrbs += wrb_cnt;
 309         stats->be_tx_bytes += copied;
 310         if (stopped)
 311                 stats->be_tx_stops++;
 312
 313         /* Update tx rate once in two seconds */
 314         if ((jiffies - stats->be_tx_jiffies) > 2 * HZ) {
 315                 u32 r;
 316                 r = (stats->be_tx_bytes - stats->be_tx_bytes_prev) /
 317                         ((u32) (jiffies - stats->be_tx_jiffies) / HZ);
 318                 r = (r / 1000000);                      /* M bytes/s */
 319                 stats->be_tx_rate = (r * 8);    /* M bits/s */
 320                 stats->be_tx_jiffies = jiffies;
 321                 stats->be_tx_bytes_prev = stats->be_tx_bytes;
 322         }
 323 }
 324
 325 /* Determine number of WRB entries needed to xmit data in an skb */
 326 static u32 wrb_cnt_for_skb(struct sk_buff *skb, bool *dummy)
 327 {
 328         int cnt = 0;
 329         while (skb) {
 330                 if (skb->len > skb->data_len)
 331                         cnt++;
 332                 cnt += skb_shinfo(skb)->nr_frags;
 333                 skb = skb_shinfo(skb)->frag_list;
 334         }
 335         /* to account for hdr wrb */
 336         cnt++;
 337         if (cnt & 1) {
 338                 /* add a dummy to make it an even num */
 339                 cnt++;
 340                 *dummy = true;
 341         } else
 342                 *dummy = false;
 343         BUG_ON(cnt > BE_MAX_TX_FRAG_COUNT);
 344         return cnt;
 345 }
 346
 347 static inline void wrb_fill(struct be_eth_wrb *wrb, u64 addr, int len)
 348 {
 349         wrb->frag_pa_hi = upper_32_bits(addr);
 350         wrb->frag_pa_lo = addr & 0xFFFFFFFF;
 351         wrb->frag_len = len & ETH_WRB_FRAG_LEN_MASK;
 352 }
 353
 354 static void wrb_fill_hdr(struct be_eth_hdr_wrb *hdr, struct sk_buff *skb,
 355                 bool vlan, u32 wrb_cnt, u32 len)
 356 {
 357         memset(hdr, 0, sizeof(*hdr));
 358
 359         AMAP_SET_BITS(struct amap_eth_hdr_wrb, crc, hdr, 1);
 360
 361         if (skb_shinfo(skb)->gso_segs > 1 && skb_shinfo(skb)->gso_size) {
 362                 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso, hdr, 1);
 363                 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso_mss,
 364                         hdr, skb_shinfo(skb)->gso_size);
 365         } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
 366                 if (is_tcp_pkt(skb))
 367                         AMAP_SET_BITS(struct amap_eth_hdr_wrb, tcpcs, hdr, 1);
 368                 else if (is_udp_pkt(skb))
 369                         AMAP_SET_BITS(struct amap_eth_hdr_wrb, udpcs, hdr, 1);
 370         }
 371
 372         if (vlan && vlan_tx_tag_present(skb)) {
 373                 AMAP_SET_BITS(struct amap_eth_hdr_wrb, vlan, hdr, 1);
 374                 AMAP_SET_BITS(struct amap_eth_hdr_wrb, vlan_tag,
 375                         hdr, vlan_tx_tag_get(skb));
 376         }
 377
 378         AMAP_SET_BITS(struct amap_eth_hdr_wrb, event, hdr, 1);
 379         AMAP_SET_BITS(struct amap_eth_hdr_wrb, complete, hdr, 1);
 380         AMAP_SET_BITS(struct amap_eth_hdr_wrb, num_wrb, hdr, wrb_cnt);
 381         AMAP_SET_BITS(struct amap_eth_hdr_wrb, len, hdr, len);
 382 }
 383
 384
 385 static int make_tx_wrbs(struct be_adapter *adapter,
 386                 struct sk_buff *skb, u32 wrb_cnt, bool dummy_wrb)
 387 {
 388         u64 busaddr;
 389         u32 i, copied = 0;
 390         struct pci_dev *pdev = adapter->pdev;
 391         struct sk_buff *first_skb = skb;
 392         struct be_queue_info *txq = &adapter->tx_obj.q;
 393         struct be_eth_wrb *wrb;
 394         struct be_eth_hdr_wrb *hdr;
 395
 396         atomic_add(wrb_cnt, &txq->used);
 397         hdr = queue_head_node(txq);
 398         queue_head_inc(txq);
 399
 400         while (skb) {
 401                 if (skb->len > skb->data_len) {
 402                         int len = skb->len - skb->data_len;
 403                         busaddr = pci_map_single(pdev, skb->data, len,
 404                                         PCI_DMA_TODEVICE);
 405                         wrb = queue_head_node(txq);
 406                         wrb_fill(wrb, busaddr, len);
 407                         be_dws_cpu_to_le(wrb, sizeof(*wrb));
 408                         queue_head_inc(txq);
 409                         copied += len;
 410                 }
 411
 412                 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
 413                         struct skb_frag_struct *frag =
 414                                 &skb_shinfo(skb)->frags[i];
 415                         busaddr = pci_map_page(pdev, frag->page,
 416                                         frag->page_offset,
 417                                         frag->size, PCI_DMA_TODEVICE);
 418                         wrb = queue_head_node(txq);
 419                         wrb_fill(wrb, busaddr, frag->size);
 420                         be_dws_cpu_to_le(wrb, sizeof(*wrb));
 421                         queue_head_inc(txq);
 422                         copied += frag->size;
 423                 }
 424                 skb = skb_shinfo(skb)->frag_list;
 425         }
 426
 427         if (dummy_wrb) {
 428                 wrb = queue_head_node(txq);
 429                 wrb_fill(wrb, 0, 0);
 430                 be_dws_cpu_to_le(wrb, sizeof(*wrb));
 431                 queue_head_inc(txq);
 432         }
 433
 434         wrb_fill_hdr(hdr, first_skb, adapter->vlan_grp ? true : false,
 435                 wrb_cnt, copied);
 436         be_dws_cpu_to_le(hdr, sizeof(*hdr));
 437
 438         return copied;
 439 }
 440
 441 static int be_xmit(struct sk_buff *skb, struct net_device *netdev)
 442 {
 443         struct be_adapter *adapter = netdev_priv(netdev);
 444         struct be_tx_obj *tx_obj = &adapter->tx_obj;
 445         struct be_queue_info *txq = &tx_obj->q;
 446         u32 wrb_cnt = 0, copied = 0;
 447         u32 start = txq->head;
 448         bool dummy_wrb, stopped = false;
 449
 450         wrb_cnt = wrb_cnt_for_skb(skb, &dummy_wrb);
 451
 452         copied = make_tx_wrbs(adapter, skb, wrb_cnt, dummy_wrb);
 453
 454         /* record the sent skb in the sent_skb table */
 455         BUG_ON(tx_obj->sent_skb_list[start]);
 456         tx_obj->sent_skb_list[start] = skb;
 457
 458         /* Ensure that txq has space for the next skb; Else stop the queue
 459          * *BEFORE* ringing the tx doorbell, so that we serialze the
 460          * tx compls of the current transmit which'll wake up the queue
 461          */
 462         if ((BE_MAX_TX_FRAG_COUNT + atomic_read(&txq->used)) >= txq->len) {
 463                 netif_stop_queue(netdev);
 464                 stopped = true;
 465         }
 466
 467         be_txq_notify(&adapter->ctrl, txq->id, wrb_cnt);
 468
 469         netdev->trans_start = jiffies;
 470
 471         be_tx_stats_update(adapter, wrb_cnt, copied, stopped);
 472         return NETDEV_TX_OK;
 473 }
 474
 475 static int be_change_mtu(struct net_device *netdev, int new_mtu)
 476 {
 477         struct be_adapter *adapter = netdev_priv(netdev);
 478         if (new_mtu < BE_MIN_MTU ||
 479                         new_mtu > BE_MAX_JUMBO_FRAME_SIZE) {
 480                 dev_info(&adapter->pdev->dev,
 481                         "MTU must be between %d and %d bytes\n",
 482                         BE_MIN_MTU, BE_MAX_JUMBO_FRAME_SIZE);
 483                 return -EINVAL;
 484         }
 485         dev_info(&adapter->pdev->dev, "MTU changed from %d to %d bytes\n",
 486                         netdev->mtu, new_mtu);
 487         netdev->mtu = new_mtu;
 488         return 0;
 489 }
 490
 491 /*
 492  * if there are BE_NUM_VLANS_SUPPORTED or lesser number of VLANS configured,
 493  * program them in BE.  If more than BE_NUM_VLANS_SUPPORTED are configured,
 494  * set the BE in promiscuous VLAN mode.
 495  */
 496 static void be_vids_config(struct net_device *netdev)
 497 {
 498         struct be_adapter *adapter = netdev_priv(netdev);
 499         u16 vtag[BE_NUM_VLANS_SUPPORTED];
 500         u16 ntags = 0, i;
 501
 502         if (adapter->num_vlans <= BE_NUM_VLANS_SUPPORTED)  {
 503                 /* Construct VLAN Table to give to HW */
 504                 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
 505                         if (adapter->vlan_tag[i]) {
 506                                 vtag[ntags] = cpu_to_le16(i);
 507                                 ntags++;
 508                         }
 509                 }
 510                 be_cmd_vlan_config(&adapter->ctrl, adapter->if_handle,
 511                         vtag, ntags, 1, 0);
 512         } else {
 513                 be_cmd_vlan_config(&adapter->ctrl, adapter->if_handle,
 514                         NULL, 0, 1, 1);
 515         }
 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         struct be_ctrl_info *ctrl = &adapter->ctrl;
 524
 525         be_eq_notify(ctrl, rx_eq->q.id, false, false, 0);
 526         be_eq_notify(ctrl, tx_eq->q.id, false, false, 0);
 527         adapter->vlan_grp = grp;
 528         be_eq_notify(ctrl, rx_eq->q.id, true, false, 0);
 529         be_eq_notify(ctrl, tx_eq->q.id, true, false, 0);
 530 }
 531
 532 static void be_vlan_add_vid(struct net_device *netdev, u16 vid)
 533 {
 534         struct be_adapter *adapter = netdev_priv(netdev);
 535
 536         adapter->num_vlans++;
 537         adapter->vlan_tag[vid] = 1;
 538
 539         be_vids_config(netdev);
 540 }
 541
 542 static void be_vlan_rem_vid(struct net_device *netdev, u16 vid)
 543 {
 544         struct be_adapter *adapter = netdev_priv(netdev);
 545
 546         adapter->num_vlans--;
 547         adapter->vlan_tag[vid] = 0;
 548
 549         vlan_group_set_device(adapter->vlan_grp, vid, NULL);
 550         be_vids_config(netdev);
 551 }
 552
 553 static void be_set_multicast_filter(struct net_device *netdev)
 554 {
 555         struct be_adapter *adapter = netdev_priv(netdev);
 556         struct dev_mc_list *mc_ptr;
 557         u8 mac_addr[32][ETH_ALEN];
 558         int i = 0;
 559
 560         if (netdev->flags & IFF_ALLMULTI) {
 561                 /* set BE in Multicast promiscuous */
 562                 be_cmd_mcast_mac_set(&adapter->ctrl,
 563                                         adapter->if_handle, NULL, 0, true);
 564                 return;
 565         }
 566
 567         for (mc_ptr = netdev->mc_list; mc_ptr; mc_ptr = mc_ptr->next) {
 568                 memcpy(&mac_addr[i][0], mc_ptr->dmi_addr, ETH_ALEN);
 569                 if (++i >= 32) {
 570                         be_cmd_mcast_mac_set(&adapter->ctrl,
 571                                 adapter->if_handle, &mac_addr[0][0], i, false);
 572                         i = 0;
 573                 }
 574
 575         }
 576
 577         if (i) {
 578                 /* reset the promiscuous mode also. */
 579                 be_cmd_mcast_mac_set(&adapter->ctrl,
 580                         adapter->if_handle, &mac_addr[0][0], i, false);
 581         }
 582 }
 583
 584 static void be_set_multicast_list(struct net_device *netdev)
 585 {
 586         struct be_adapter *adapter = netdev_priv(netdev);
 587
 588         if (netdev->flags & IFF_PROMISC) {
 589                 be_cmd_promiscuous_config(&adapter->ctrl, adapter->port_num, 1);
 590         } else {
 591                 be_cmd_promiscuous_config(&adapter->ctrl, adapter->port_num, 0);
 592                 be_set_multicast_filter(netdev);
 593         }
 594 }
 595
 596 static void be_rx_rate_update(struct be_adapter *adapter, u32 pktsize,
 597                         u16 numfrags)
 598 {
 599         struct be_drvr_stats *stats = &adapter->stats.drvr_stats;
 600         u32 rate;
 601
 602         stats->be_rx_compl++;
 603         stats->be_rx_frags += numfrags;
 604         stats->be_rx_bytes += pktsize;
 605
 606         /* Update the rate once in two seconds */
 607         if ((jiffies - stats->be_rx_jiffies) < 2 * HZ)
 608                 return;
 609
 610         rate = (stats->be_rx_bytes - stats->be_rx_bytes_prev) /
 611                 ((u32) (jiffies - stats->be_rx_jiffies) / HZ);
 612         rate = (rate / 1000000);        /* MB/Sec */
 613         stats->be_rx_rate = (rate * 8);         /* Mega Bits/Sec */
 614         stats->be_rx_jiffies = jiffies;
 615         stats->be_rx_bytes_prev = stats->be_rx_bytes;
 616 }
 617
 618 static struct be_rx_page_info *
 619 get_rx_page_info(struct be_adapter *adapter, u16 frag_idx)
 620 {
 621         struct be_rx_page_info *rx_page_info;
 622         struct be_queue_info *rxq = &adapter->rx_obj.q;
 623
 624         rx_page_info = &adapter->rx_obj.page_info_tbl[frag_idx];
 625         BUG_ON(!rx_page_info->page);
 626
 627         if (rx_page_info->last_page_user)
 628                 pci_unmap_page(adapter->pdev, pci_unmap_addr(rx_page_info, bus),
 629                         adapter->big_page_size, PCI_DMA_FROMDEVICE);
 630
 631         atomic_dec(&rxq->used);
 632         return rx_page_info;
 633 }
 634
 635 /* Throwaway the data in the Rx completion */
 636 static void be_rx_compl_discard(struct be_adapter *adapter,
 637                         struct be_eth_rx_compl *rxcp)
 638 {
 639         struct be_queue_info *rxq = &adapter->rx_obj.q;
 640         struct be_rx_page_info *page_info;
 641         u16 rxq_idx, i, num_rcvd;
 642
 643         rxq_idx = AMAP_GET_BITS(struct amap_eth_rx_compl, fragndx, rxcp);
 644         num_rcvd = AMAP_GET_BITS(struct amap_eth_rx_compl, numfrags, rxcp);
 645
 646         for (i = 0; i < num_rcvd; i++) {
 647                 page_info = get_rx_page_info(adapter, rxq_idx);
 648                 put_page(page_info->page);
 649                 memset(page_info, 0, sizeof(*page_info));
 650                 index_inc(&rxq_idx, rxq->len);
 651         }
 652 }
 653
 654 /*
 655  * skb_fill_rx_data forms a complete skb for an ether frame
 656  * indicated by rxcp.
 657  */
 658 static void skb_fill_rx_data(struct be_adapter *adapter,
 659                         struct sk_buff *skb, struct be_eth_rx_compl *rxcp)
 660 {
 661         struct be_queue_info *rxq = &adapter->rx_obj.q;
 662         struct be_rx_page_info *page_info;
 663         u16 rxq_idx, i, num_rcvd;
 664         u32 pktsize, hdr_len, curr_frag_len;
 665         u8 *start;
 666
 667         rxq_idx = AMAP_GET_BITS(struct amap_eth_rx_compl, fragndx, rxcp);
 668         pktsize = AMAP_GET_BITS(struct amap_eth_rx_compl, pktsize, rxcp);
 669         num_rcvd = AMAP_GET_BITS(struct amap_eth_rx_compl, numfrags, rxcp);
 670
 671         page_info = get_rx_page_info(adapter, rxq_idx);
 672
 673         start = page_address(page_info->page) + page_info->page_offset;
 674         prefetch(start);
 675
 676         /* Copy data in the first descriptor of this completion */
 677         curr_frag_len = min(pktsize, rx_frag_size);
 678
 679         /* Copy the header portion into skb_data */
 680         hdr_len = min((u32)BE_HDR_LEN, curr_frag_len);
 681         memcpy(skb->data, start, hdr_len);
 682         skb->len = curr_frag_len;
 683         if (curr_frag_len <= BE_HDR_LEN) { /* tiny packet */
 684                 /* Complete packet has now been moved to data */
 685                 put_page(page_info->page);
 686                 skb->data_len = 0;
 687                 skb->tail += curr_frag_len;
 688         } else {
 689                 skb_shinfo(skb)->nr_frags = 1;
 690                 skb_shinfo(skb)->frags[0].page = page_info->page;
 691                 skb_shinfo(skb)->frags[0].page_offset =
 692                                         page_info->page_offset + hdr_len;
 693                 skb_shinfo(skb)->frags[0].size = curr_frag_len - hdr_len;
 694                 skb->data_len = curr_frag_len - hdr_len;
 695                 skb->tail += hdr_len;
 696         }
 697         memset(page_info, 0, sizeof(*page_info));
 698
 699         if (pktsize <= rx_frag_size) {
 700                 BUG_ON(num_rcvd != 1);
 701                 return;
 702         }
 703
 704         /* More frags present for this completion */
 705         pktsize -= curr_frag_len; /* account for above copied frag */
 706         for (i = 1; i < num_rcvd; i++) {
 707                 index_inc(&rxq_idx, rxq->len);
 708                 page_info = get_rx_page_info(adapter, rxq_idx);
 709
 710                 curr_frag_len = min(pktsize, rx_frag_size);
 711
 712                 skb_shinfo(skb)->frags[i].page = page_info->page;
 713                 skb_shinfo(skb)->frags[i].page_offset = page_info->page_offset;
 714                 skb_shinfo(skb)->frags[i].size = curr_frag_len;
 715                 skb->len += curr_frag_len;
 716                 skb->data_len += curr_frag_len;
 717                 skb_shinfo(skb)->nr_frags++;
 718                 pktsize -= curr_frag_len;
 719
 720                 memset(page_info, 0, sizeof(*page_info));
 721         }
 722
 723         be_rx_rate_update(adapter, pktsize, num_rcvd);
 724         return;
 725 }
 726
 727 /* Process the RX completion indicated by rxcp when LRO is disabled */
 728 static void be_rx_compl_process(struct be_adapter *adapter,
 729                         struct be_eth_rx_compl *rxcp)
 730 {
 731         struct sk_buff *skb;
 732         u32 vtp, vid;
 733         int l4_cksm;
 734
 735         l4_cksm = AMAP_GET_BITS(struct amap_eth_rx_compl, l4_cksm, rxcp);
 736         vtp = AMAP_GET_BITS(struct amap_eth_rx_compl, vtp, rxcp);
 737
 738         skb = netdev_alloc_skb(adapter->netdev, BE_HDR_LEN + NET_IP_ALIGN);
 739         if (!skb) {
 740                 if (net_ratelimit())
 741                         dev_warn(&adapter->pdev->dev, "skb alloc failed\n");
 742                 be_rx_compl_discard(adapter, rxcp);
 743                 return;
 744         }
 745
 746         skb_reserve(skb, NET_IP_ALIGN);
 747
 748         skb_fill_rx_data(adapter, skb, rxcp);
 749
 750         if (l4_cksm && adapter->rx_csum)
 751                 skb->ip_summed = CHECKSUM_UNNECESSARY;
 752         else
 753                 skb->ip_summed = CHECKSUM_NONE;
 754
 755         skb->truesize = skb->len + sizeof(struct sk_buff);
 756         skb->protocol = eth_type_trans(skb, adapter->netdev);
 757         skb->dev = adapter->netdev;
 758
 759         if (vtp) {
 760                 if (!adapter->vlan_grp || adapter->num_vlans == 0) {
 761                         kfree_skb(skb);
 762                         return;
 763                 }
 764                 vid = AMAP_GET_BITS(struct amap_eth_rx_compl, vlan_tag, rxcp);
 765                 vid = be16_to_cpu(vid);
 766                 vlan_hwaccel_receive_skb(skb, adapter->vlan_grp, vid);
 767         } else {
 768                 netif_receive_skb(skb);
 769         }
 770
 771         adapter->netdev->last_rx = jiffies;
 772
 773         return;
 774 }
 775
 776 /* Process the RX completion indicated by rxcp when LRO is enabled */
 777 static void be_rx_compl_process_lro(struct be_adapter *adapter,
 778                         struct be_eth_rx_compl *rxcp)
 779 {
 780         struct be_rx_page_info *page_info;
 781         struct skb_frag_struct rx_frags[BE_MAX_FRAGS_PER_FRAME];
 782         struct be_queue_info *rxq = &adapter->rx_obj.q;
 783         u32 num_rcvd, pkt_size, remaining, vlanf, curr_frag_len;
 784         u16 i, rxq_idx = 0, vid;
 785
 786         num_rcvd = AMAP_GET_BITS(struct amap_eth_rx_compl, numfrags, rxcp);
 787         pkt_size = AMAP_GET_BITS(struct amap_eth_rx_compl, pktsize, rxcp);
 788         vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl, vtp, rxcp);
 789         rxq_idx = AMAP_GET_BITS(struct amap_eth_rx_compl, fragndx, rxcp);
 790
 791         remaining = pkt_size;
 792         for (i = 0; i < num_rcvd; i++) {
 793                 page_info = get_rx_page_info(adapter, rxq_idx);
 794
 795                 curr_frag_len = min(remaining, rx_frag_size);
 796
 797                 rx_frags[i].page = page_info->page;
 798                 rx_frags[i].page_offset = page_info->page_offset;
 799                 rx_frags[i].size = curr_frag_len;
 800                 remaining -= curr_frag_len;
 801
 802                 index_inc(&rxq_idx, rxq->len);
 803
 804                 memset(page_info, 0, sizeof(*page_info));
 805         }
 806
 807         if (likely(!vlanf)) {
 808                 lro_receive_frags(&adapter->rx_obj.lro_mgr, rx_frags, pkt_size,
 809                                 pkt_size, NULL, 0);
 810         } else {
 811                 vid = AMAP_GET_BITS(struct amap_eth_rx_compl, vlan_tag, rxcp);
 812                 vid = be16_to_cpu(vid);
 813
 814                 if (!adapter->vlan_grp || adapter->num_vlans == 0)
 815                         return;
 816
 817                 lro_vlan_hwaccel_receive_frags(&adapter->rx_obj.lro_mgr,
 818                         rx_frags, pkt_size, pkt_size, adapter->vlan_grp,
 819                         vid, NULL, 0);
 820         }
 821
 822         be_rx_rate_update(adapter, pkt_size, num_rcvd);
 823         return;
 824 }
 825
 826 static struct be_eth_rx_compl *be_rx_compl_get(struct be_adapter *adapter)
 827 {
 828         struct be_eth_rx_compl *rxcp = queue_tail_node(&adapter->rx_obj.cq);
 829
 830         if (rxcp->dw[offsetof(struct amap_eth_rx_compl, valid) / 32] == 0)
 831                 return NULL;
 832
 833         be_dws_le_to_cpu(rxcp, sizeof(*rxcp));
 834
 835         rxcp->dw[offsetof(struct amap_eth_rx_compl, valid) / 32] = 0;
 836
 837         queue_tail_inc(&adapter->rx_obj.cq);
 838         return rxcp;
 839 }
 840
 841 static inline struct page *be_alloc_pages(u32 size)
 842 {
 843         gfp_t alloc_flags = GFP_ATOMIC;
 844         u32 order = get_order(size);
 845         if (order > 0)
 846                 alloc_flags |= __GFP_COMP;
 847         return  alloc_pages(alloc_flags, order);
 848 }
 849
 850 /*
 851  * Allocate a page, split it to fragments of size rx_frag_size and post as
 852  * receive buffers to BE
 853  */
 854 static void be_post_rx_frags(struct be_adapter *adapter)
 855 {
 856         struct be_rx_page_info *page_info_tbl = adapter->rx_obj.page_info_tbl;
 857         struct be_rx_page_info *page_info = NULL;
 858         struct be_queue_info *rxq = &adapter->rx_obj.q;
 859         struct page *pagep = NULL;
 860         struct be_eth_rx_d *rxd;
 861         u64 page_dmaaddr = 0, frag_dmaaddr;
 862         u32 posted, page_offset = 0;
 863
 864
 865         page_info = &page_info_tbl[rxq->head];
 866         for (posted = 0; posted < MAX_RX_POST && !page_info->page; posted++) {
 867                 if (!pagep) {
 868                         pagep = be_alloc_pages(adapter->big_page_size);
 869                         if (unlikely(!pagep)) {
 870                                 drvr_stats(adapter)->be_ethrx_post_fail++;
 871                                 break;
 872                         }
 873                         page_dmaaddr = pci_map_page(adapter->pdev, pagep, 0,
 874                                                 adapter->big_page_size,
 875                                                 PCI_DMA_FROMDEVICE);
 876                         page_info->page_offset = 0;
 877                 } else {
 878                         get_page(pagep);
 879                         page_info->page_offset = page_offset + rx_frag_size;
 880                 }
 881                 page_offset = page_info->page_offset;
 882                 page_info->page = pagep;
 883                 pci_unmap_addr_set(page_info, bus, page_dmaaddr);
 884                 frag_dmaaddr = page_dmaaddr + page_info->page_offset;
 885
 886                 rxd = queue_head_node(rxq);
 887                 rxd->fragpa_lo = cpu_to_le32(frag_dmaaddr & 0xFFFFFFFF);
 888                 rxd->fragpa_hi = cpu_to_le32(upper_32_bits(frag_dmaaddr));
 889                 queue_head_inc(rxq);
 890
 891                 /* Any space left in the current big page for another frag? */
 892                 if ((page_offset + rx_frag_size + rx_frag_size) >
 893                                         adapter->big_page_size) {
 894                         pagep = NULL;
 895                         page_info->last_page_user = true;
 896                 }
 897                 page_info = &page_info_tbl[rxq->head];
 898         }
 899         if (pagep)
 900                 page_info->last_page_user = true;
 901
 902         if (posted) {
 903                 be_rxq_notify(&adapter->ctrl, rxq->id, posted);
 904                 atomic_add(posted, &rxq->used);
 905         }
 906
 907         return;
 908 }
 909
 910 static struct be_eth_tx_compl *
 911 be_tx_compl_get(struct be_adapter *adapter)
 912 {
 913         struct be_queue_info *tx_cq = &adapter->tx_obj.cq;
 914         struct be_eth_tx_compl *txcp = queue_tail_node(tx_cq);
 915
 916         if (txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] == 0)
 917                 return NULL;
 918
 919         be_dws_le_to_cpu(txcp, sizeof(*txcp));
 920
 921         txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] = 0;
 922
 923         queue_tail_inc(tx_cq);
 924         return txcp;
 925 }
 926
 927 static void be_tx_compl_process(struct be_adapter *adapter, u16 last_index)
 928 {
 929         struct be_queue_info *txq = &adapter->tx_obj.q;
 930         struct be_eth_wrb *wrb;
 931         struct sk_buff **sent_skbs = adapter->tx_obj.sent_skb_list;
 932         struct sk_buff *sent_skb;
 933         u64 busaddr;
 934         u16 cur_index, num_wrbs = 0;
 935
 936         cur_index = txq->tail;
 937         sent_skb = sent_skbs[cur_index];
 938         BUG_ON(!sent_skb);
 939         sent_skbs[cur_index] = NULL;
 940
 941         do {
 942                 cur_index = txq->tail;
 943                 wrb = queue_tail_node(txq);
 944                 be_dws_le_to_cpu(wrb, sizeof(*wrb));
 945                 busaddr = ((u64)wrb->frag_pa_hi << 32) | (u64)wrb->frag_pa_lo;
 946                 if (busaddr != 0) {
 947                         pci_unmap_single(adapter->pdev, busaddr,
 948                                 wrb->frag_len, PCI_DMA_TODEVICE);
 949                 }
 950                 num_wrbs++;
 951                 queue_tail_inc(txq);
 952         } while (cur_index != last_index);
 953
 954         atomic_sub(num_wrbs, &txq->used);
 955
 956         kfree_skb(sent_skb);
 957 }
 958
 959 static void be_rx_q_clean(struct be_adapter *adapter)
 960 {
 961         struct be_rx_page_info *page_info;
 962         struct be_queue_info *rxq = &adapter->rx_obj.q;
 963         struct be_queue_info *rx_cq = &adapter->rx_obj.cq;
 964         struct be_eth_rx_compl *rxcp;
 965         u16 tail;
 966
 967         /* First cleanup pending rx completions */
 968         while ((rxcp = be_rx_compl_get(adapter)) != NULL) {
 969                 be_rx_compl_discard(adapter, rxcp);
 970                 be_cq_notify(&adapter->ctrl, rx_cq->id, true, 1);
 971         }
 972
 973         /* Then free posted rx buffer that were not used */
 974         tail = (rxq->head + rxq->len - atomic_read(&rxq->used)) % rxq->len;
 975         for (; tail != rxq->head; index_inc(&tail, rxq->len)) {
 976                 page_info = get_rx_page_info(adapter, tail);
 977                 put_page(page_info->page);
 978                 memset(page_info, 0, sizeof(*page_info));
 979         }
 980         BUG_ON(atomic_read(&rxq->used));
 981 }
 982
 983 static void be_tx_q_clean(struct be_adapter *adapter)
 984 {
 985         struct sk_buff **sent_skbs = adapter->tx_obj.sent_skb_list;
 986         struct sk_buff *sent_skb;
 987         struct be_queue_info *txq = &adapter->tx_obj.q;
 988         u16 last_index;
 989         bool dummy_wrb;
 990
 991         while (atomic_read(&txq->used)) {
 992                 sent_skb = sent_skbs[txq->tail];
 993                 last_index = txq->tail;
 994                 index_adv(&last_index,
 995                         wrb_cnt_for_skb(sent_skb, &dummy_wrb) - 1, txq->len);
 996                 be_tx_compl_process(adapter, last_index);
 997         }
 998 }
 999
1000 static void be_tx_queues_destroy(struct be_adapter *adapter)
1001 {
1002         struct be_queue_info *q;
1003
1004         q = &adapter->tx_obj.q;
1005         if (q->created)
1006                 be_cmd_q_destroy(&adapter->ctrl, q, QTYPE_TXQ);
1007         be_queue_free(adapter, q);
1008
1009         q = &adapter->tx_obj.cq;
1010         if (q->created)
1011                 be_cmd_q_destroy(&adapter->ctrl, q, QTYPE_CQ);
1012         be_queue_free(adapter, q);
1013
1014         /* No more tx completions can be rcvd now; clean up if there are
1015          * any pending completions or pending tx requests */
1016         be_tx_q_clean(adapter);
1017
1018         q = &adapter->tx_eq.q;
1019         if (q->created)
1020                 be_cmd_q_destroy(&adapter->ctrl, q, QTYPE_EQ);
1021         be_queue_free(adapter, q);
1022 }
1023
1024 static int be_tx_queues_create(struct be_adapter *adapter)
1025 {
1026         struct be_queue_info *eq, *q, *cq;
1027
1028         adapter->tx_eq.max_eqd = 0;
1029         adapter->tx_eq.min_eqd = 0;
1030         adapter->tx_eq.cur_eqd = 96;
1031         adapter->tx_eq.enable_aic = false;
1032         /* Alloc Tx Event queue */
1033         eq = &adapter->tx_eq.q;
1034         if (be_queue_alloc(adapter, eq, EVNT_Q_LEN, sizeof(struct be_eq_entry)))
1035                 return -1;
1036
1037         /* Ask BE to create Tx Event queue */
1038         if (be_cmd_eq_create(&adapter->ctrl, eq, adapter->tx_eq.cur_eqd))
1039                 goto tx_eq_free;
1040         /* Alloc TX eth compl queue */
1041         cq = &adapter->tx_obj.cq;
1042         if (be_queue_alloc(adapter, cq, TX_CQ_LEN,
1043                         sizeof(struct be_eth_tx_compl)))
1044                 goto tx_eq_destroy;
1045
1046         /* Ask BE to create Tx eth compl queue */
1047         if (be_cmd_cq_create(&adapter->ctrl, cq, eq, false, false, 3))
1048                 goto tx_cq_free;
1049
1050         /* Alloc TX eth queue */
1051         q = &adapter->tx_obj.q;
1052         if (be_queue_alloc(adapter, q, TX_Q_LEN, sizeof(struct be_eth_wrb)))
1053                 goto tx_cq_destroy;
1054
1055         /* Ask BE to create Tx eth queue */
1056         if (be_cmd_txq_create(&adapter->ctrl, q, cq))
1057                 goto tx_q_free;
1058         return 0;
1059
1060 tx_q_free:
1061         be_queue_free(adapter, q);
1062 tx_cq_destroy:
1063         be_cmd_q_destroy(&adapter->ctrl, cq, QTYPE_CQ);
1064 tx_cq_free:
1065         be_queue_free(adapter, cq);
1066 tx_eq_destroy:
1067         be_cmd_q_destroy(&adapter->ctrl, eq, QTYPE_EQ);
1068 tx_eq_free:
1069         be_queue_free(adapter, eq);
1070         return -1;
1071 }
1072
1073 static void be_rx_queues_destroy(struct be_adapter *adapter)
1074 {
1075         struct be_queue_info *q;
1076
1077         q = &adapter->rx_obj.q;
1078         if (q->created) {
1079                 be_cmd_q_destroy(&adapter->ctrl, q, QTYPE_RXQ);
1080                 be_rx_q_clean(adapter);
1081         }
1082         be_queue_free(adapter, q);
1083
1084         q = &adapter->rx_obj.cq;
1085         if (q->created)
1086                 be_cmd_q_destroy(&adapter->ctrl, q, QTYPE_CQ);
1087         be_queue_free(adapter, q);
1088
1089         q = &adapter->rx_eq.q;
1090         if (q->created)
1091                 be_cmd_q_destroy(&adapter->ctrl, q, QTYPE_EQ);
1092         be_queue_free(adapter, q);
1093 }
1094
1095 static int be_rx_queues_create(struct be_adapter *adapter)
1096 {
1097         struct be_queue_info *eq, *q, *cq;
1098         int rc;
1099
1100         adapter->max_rx_coal = BE_MAX_FRAGS_PER_FRAME;
1101         adapter->big_page_size = (1 << get_order(rx_frag_size)) * PAGE_SIZE;
1102         adapter->rx_eq.max_eqd = BE_MAX_EQD;
1103         adapter->rx_eq.min_eqd = 0;
1104         adapter->rx_eq.cur_eqd = 0;
1105         adapter->rx_eq.enable_aic = true;
1106
1107         /* Alloc Rx Event queue */
1108         eq = &adapter->rx_eq.q;
1109         rc = be_queue_alloc(adapter, eq, EVNT_Q_LEN,
1110                                 sizeof(struct be_eq_entry));
1111         if (rc)
1112                 return rc;
1113
1114         /* Ask BE to create Rx Event queue */
1115         rc = be_cmd_eq_create(&adapter->ctrl, eq, adapter->rx_eq.cur_eqd);
1116         if (rc)
1117                 goto rx_eq_free;
1118
1119         /* Alloc RX eth compl queue */
1120         cq = &adapter->rx_obj.cq;
1121         rc = be_queue_alloc(adapter, cq, RX_CQ_LEN,
1122                         sizeof(struct be_eth_rx_compl));
1123         if (rc)
1124                 goto rx_eq_destroy;
1125
1126         /* Ask BE to create Rx eth compl queue */
1127         rc = be_cmd_cq_create(&adapter->ctrl, cq, eq, false, false, 3);
1128         if (rc)
1129                 goto rx_cq_free;
1130
1131         /* Alloc RX eth queue */
1132         q = &adapter->rx_obj.q;
1133         rc = be_queue_alloc(adapter, q, RX_Q_LEN, sizeof(struct be_eth_rx_d));
1134         if (rc)
1135                 goto rx_cq_destroy;
1136
1137         /* Ask BE to create Rx eth queue */
1138         rc = be_cmd_rxq_create(&adapter->ctrl, q, cq->id, rx_frag_size,
1139                 BE_MAX_JUMBO_FRAME_SIZE, adapter->if_handle, false);
1140         if (rc)
1141                 goto rx_q_free;
1142
1143         return 0;
1144 rx_q_free:
1145         be_queue_free(adapter, q);
1146 rx_cq_destroy:
1147         be_cmd_q_destroy(&adapter->ctrl, cq, QTYPE_CQ);
1148 rx_cq_free:
1149         be_queue_free(adapter, cq);
1150 rx_eq_destroy:
1151         be_cmd_q_destroy(&adapter->ctrl, eq, QTYPE_EQ);
1152 rx_eq_free:
1153         be_queue_free(adapter, eq);
1154         return rc;
1155 }
1156 static bool event_get(struct be_eq_obj *eq_obj, u16 *rid)
1157 {
1158         struct be_eq_entry *entry = queue_tail_node(&eq_obj->q);
1159         u32 evt = entry->evt;
1160
1161         if (!evt)
1162                 return false;
1163
1164         evt = le32_to_cpu(evt);
1165         *rid = (evt >> EQ_ENTRY_RES_ID_SHIFT) & EQ_ENTRY_RES_ID_MASK;
1166         entry->evt = 0;
1167         queue_tail_inc(&eq_obj->q);
1168         return true;
1169 }
1170
1171 static int event_handle(struct be_ctrl_info *ctrl,
1172                         struct be_eq_obj *eq_obj)
1173 {
1174         u16 rid = 0, num = 0;
1175
1176         while (event_get(eq_obj, &rid))
1177                 num++;
1178
1179         /* We can see an interrupt and no event */
1180         be_eq_notify(ctrl, eq_obj->q.id, true, true, num);
1181         if (num)
1182                 napi_schedule(&eq_obj->napi);
1183
1184         return num;
1185 }
1186
1187 static irqreturn_t be_intx(int irq, void *dev)
1188 {
1189         struct be_adapter *adapter = dev;
1190         struct be_ctrl_info *ctrl = &adapter->ctrl;
1191         int rx, tx;
1192
1193         tx = event_handle(ctrl, &adapter->tx_eq);
1194         rx = event_handle(ctrl, &adapter->rx_eq);
1195
1196         if (rx || tx)
1197                 return IRQ_HANDLED;
1198         else
1199                 return IRQ_NONE;
1200 }
1201
1202 static irqreturn_t be_msix_rx(int irq, void *dev)
1203 {
1204         struct be_adapter *adapter = dev;
1205
1206         event_handle(&adapter->ctrl, &adapter->rx_eq);
1207
1208         return IRQ_HANDLED;
1209 }
1210
1211 static irqreturn_t be_msix_tx(int irq, void *dev)
1212 {
1213         struct be_adapter *adapter = dev;
1214
1215         event_handle(&adapter->ctrl, &adapter->tx_eq);
1216
1217         return IRQ_HANDLED;
1218 }
1219
1220 static inline bool do_lro(struct be_adapter *adapter,
1221                         struct be_eth_rx_compl *rxcp)
1222 {
1223         int err = AMAP_GET_BITS(struct amap_eth_rx_compl, err, rxcp);
1224         int tcp_frame = AMAP_GET_BITS(struct amap_eth_rx_compl, tcpf, rxcp);
1225
1226         if (err)
1227                 drvr_stats(adapter)->be_rxcp_err++;
1228
1229         return (!tcp_frame || err || (adapter->max_rx_coal <= 1)) ?
1230                 false : true;
1231 }
1232
1233 int be_poll_rx(struct napi_struct *napi, int budget)
1234 {
1235         struct be_eq_obj *rx_eq = container_of(napi, struct be_eq_obj, napi);
1236         struct be_adapter *adapter =
1237                 container_of(rx_eq, struct be_adapter, rx_eq);
1238         struct be_queue_info *rx_cq = &adapter->rx_obj.cq;
1239         struct be_eth_rx_compl *rxcp;
1240         u32 work_done;
1241
1242         for (work_done = 0; work_done < budget; work_done++) {
1243                 rxcp = be_rx_compl_get(adapter);
1244                 if (!rxcp)
1245                         break;
1246
1247                 if (do_lro(adapter, rxcp))
1248                         be_rx_compl_process_lro(adapter, rxcp);
1249                 else
1250                         be_rx_compl_process(adapter, rxcp);
1251         }
1252
1253         lro_flush_all(&adapter->rx_obj.lro_mgr);
1254
1255         /* Refill the queue */
1256         if (atomic_read(&adapter->rx_obj.q.used) < RX_FRAGS_REFILL_WM)
1257                 be_post_rx_frags(adapter);
1258
1259         /* All consumed */
1260         if (work_done < budget) {
1261                 napi_complete(napi);
1262                 be_cq_notify(&adapter->ctrl, rx_cq->id, true, work_done);
1263         } else {
1264                 /* More to be consumed; continue with interrupts disabled */
1265                 be_cq_notify(&adapter->ctrl, rx_cq->id, false, work_done);
1266         }
1267         return work_done;
1268 }
1269
1270 /* For TX we don't honour budget; consume everything */
1271 int be_poll_tx(struct napi_struct *napi, int budget)
1272 {
1273         struct be_eq_obj *tx_eq = container_of(napi, struct be_eq_obj, napi);
1274         struct be_adapter *adapter =
1275                 container_of(tx_eq, struct be_adapter, tx_eq);
1276         struct be_tx_obj *tx_obj = &adapter->tx_obj;
1277         struct be_queue_info *tx_cq = &tx_obj->cq;
1278         struct be_queue_info *txq = &tx_obj->q;
1279         struct be_eth_tx_compl *txcp;
1280         u32 num_cmpl = 0;
1281         u16 end_idx;
1282
1283         while ((txcp = be_tx_compl_get(adapter))) {
1284                 end_idx = AMAP_GET_BITS(struct amap_eth_tx_compl,
1285                                         wrb_index, txcp);
1286                 be_tx_compl_process(adapter, end_idx);
1287                 num_cmpl++;
1288         }
1289
1290         /* As Tx wrbs have been freed up, wake up netdev queue if
1291          * it was stopped due to lack of tx wrbs.
1292          */
1293         if (netif_queue_stopped(adapter->netdev) &&
1294                         atomic_read(&txq->used) < txq->len / 2) {
1295                 netif_wake_queue(adapter->netdev);
1296         }
1297
1298         napi_complete(napi);
1299
1300         be_cq_notify(&adapter->ctrl, tx_cq->id, true, num_cmpl);
1301
1302         drvr_stats(adapter)->be_tx_events++;
1303         drvr_stats(adapter)->be_tx_compl += num_cmpl;
1304
1305         return 1;
1306 }
1307
1308 static void be_msix_enable(struct be_adapter *adapter)
1309 {
1310         int i, status;
1311
1312         for (i = 0; i < BE_NUM_MSIX_VECTORS; i++)
1313                 adapter->msix_entries[i].entry = i;
1314
1315         status = pci_enable_msix(adapter->pdev, adapter->msix_entries,
1316                 BE_NUM_MSIX_VECTORS);
1317         if (status == 0)
1318                 adapter->msix_enabled = true;
1319         return;
1320 }
1321
1322 static inline int be_msix_vec_get(struct be_adapter *adapter, u32 eq_id)
1323 {
1324         return adapter->msix_entries[eq_id -
1325                         8 * adapter->ctrl.pci_func].vector;
1326 }
1327
1328 static int be_msix_register(struct be_adapter *adapter)
1329 {
1330         struct net_device *netdev = adapter->netdev;
1331         struct be_eq_obj *tx_eq = &adapter->tx_eq;
1332         struct be_eq_obj *rx_eq = &adapter->rx_eq;
1333         int status, vec;
1334
1335         sprintf(tx_eq->desc, "%s-tx", netdev->name);
1336         vec = be_msix_vec_get(adapter, tx_eq->q.id);
1337         status = request_irq(vec, be_msix_tx, 0, tx_eq->desc, adapter);
1338         if (status)
1339                 goto err;
1340
1341         sprintf(rx_eq->desc, "%s-rx", netdev->name);
1342         vec = be_msix_vec_get(adapter, rx_eq->q.id);
1343         status = request_irq(vec, be_msix_rx, 0, rx_eq->desc, adapter);
1344         if (status) { /* Free TX IRQ */
1345                 vec = be_msix_vec_get(adapter, tx_eq->q.id);
1346                 free_irq(vec, adapter);
1347                 goto err;
1348         }
1349         return 0;
1350 err:
1351         dev_warn(&adapter->pdev->dev,
1352                 "MSIX Request IRQ failed - err %d\n", status);
1353         pci_disable_msix(adapter->pdev);
1354         adapter->msix_enabled = false;
1355         return status;
1356 }
1357
1358 static int be_irq_register(struct be_adapter *adapter)
1359 {
1360         struct net_device *netdev = adapter->netdev;
1361         int status;
1362
1363         if (adapter->msix_enabled) {
1364                 status = be_msix_register(adapter);
1365                 if (status == 0)
1366                         goto done;
1367         }
1368
1369         /* INTx */
1370         netdev->irq = adapter->pdev->irq;
1371         status = request_irq(netdev->irq, be_intx, IRQF_SHARED, netdev->name,
1372                         adapter);
1373         if (status) {
1374                 dev_err(&adapter->pdev->dev,
1375                         "INTx request IRQ failed - err %d\n", status);
1376                 return status;
1377         }
1378 done:
1379         adapter->isr_registered = true;
1380         return 0;
1381 }
1382
1383 static void be_irq_unregister(struct be_adapter *adapter)
1384 {
1385         struct net_device *netdev = adapter->netdev;
1386         int vec;
1387
1388         if (!adapter->isr_registered)
1389                 return;
1390
1391         /* INTx */
1392         if (!adapter->msix_enabled) {
1393                 free_irq(netdev->irq, adapter);
1394                 goto done;
1395         }
1396
1397         /* MSIx */
1398         vec = be_msix_vec_get(adapter, adapter->tx_eq.q.id);
1399         free_irq(vec, adapter);
1400         vec = be_msix_vec_get(adapter, adapter->rx_eq.q.id);
1401         free_irq(vec, adapter);
1402 done:
1403         adapter->isr_registered = false;
1404         return;
1405 }
1406
1407 static int be_open(struct net_device *netdev)
1408 {
1409         struct be_adapter *adapter = netdev_priv(netdev);
1410         struct be_ctrl_info *ctrl = &adapter->ctrl;
1411         struct be_eq_obj *rx_eq = &adapter->rx_eq;
1412         struct be_eq_obj *tx_eq = &adapter->tx_eq;
1413         u32 if_flags;
1414         int status;
1415
1416         if_flags = BE_IF_FLAGS_BROADCAST | BE_IF_FLAGS_PROMISCUOUS |
1417                 BE_IF_FLAGS_MCAST_PROMISCUOUS | BE_IF_FLAGS_UNTAGGED |
1418                 BE_IF_FLAGS_PASS_L3L4_ERRORS;
1419         status = be_cmd_if_create(ctrl, if_flags, netdev->dev_addr,
1420                         false/* pmac_invalid */, &adapter->if_handle,
1421                         &adapter->pmac_id);
1422         if (status != 0)
1423                 goto do_none;
1424
1425         status = be_cmd_set_flow_control(ctrl, true, true);
1426         if (status != 0)
1427                 goto if_destroy;
1428
1429         status = be_tx_queues_create(adapter);
1430         if (status != 0)
1431                 goto if_destroy;
1432
1433         status = be_rx_queues_create(adapter);
1434         if (status != 0)
1435                 goto tx_qs_destroy;
1436
1437         /* First time posting */
1438         be_post_rx_frags(adapter);
1439
1440         napi_enable(&rx_eq->napi);
1441         napi_enable(&tx_eq->napi);
1442
1443         be_irq_register(adapter);
1444
1445         be_intr_set(ctrl, true);
1446
1447         /* The evt queues are created in the unarmed state; arm them */
1448         be_eq_notify(ctrl, rx_eq->q.id, true, false, 0);
1449         be_eq_notify(ctrl, tx_eq->q.id, true, false, 0);
1450
1451         /* The compl queues are created in the unarmed state; arm them */
1452         be_cq_notify(ctrl, adapter->rx_obj.cq.id, true, 0);
1453         be_cq_notify(ctrl, adapter->tx_obj.cq.id, true, 0);
1454
1455         be_link_status_update(adapter);
1456
1457         schedule_delayed_work(&adapter->work, msecs_to_jiffies(100));
1458         return 0;
1459
1460 tx_qs_destroy:
1461         be_tx_queues_destroy(adapter);
1462 if_destroy:
1463         be_cmd_if_destroy(ctrl, adapter->if_handle);
1464 do_none:
1465         return status;
1466 }
1467
1468 static int be_close(struct net_device *netdev)
1469 {
1470         struct be_adapter *adapter = netdev_priv(netdev);
1471         struct be_ctrl_info *ctrl = &adapter->ctrl;
1472         struct be_eq_obj *rx_eq = &adapter->rx_eq;
1473         struct be_eq_obj *tx_eq = &adapter->tx_eq;
1474         int vec;
1475
1476         cancel_delayed_work(&adapter->work);
1477
1478         netif_stop_queue(netdev);
1479         netif_carrier_off(netdev);
1480         adapter->link.speed = PHY_LINK_SPEED_ZERO;
1481
1482         be_intr_set(ctrl, false);
1483
1484         if (adapter->msix_enabled) {
1485                 vec = be_msix_vec_get(adapter, tx_eq->q.id);
1486                 synchronize_irq(vec);
1487                 vec = be_msix_vec_get(adapter, rx_eq->q.id);
1488                 synchronize_irq(vec);
1489         } else {
1490                 synchronize_irq(netdev->irq);
1491         }
1492         be_irq_unregister(adapter);
1493
1494         napi_disable(&rx_eq->napi);
1495         napi_disable(&tx_eq->napi);
1496
1497         be_rx_queues_destroy(adapter);
1498         be_tx_queues_destroy(adapter);
1499
1500         be_cmd_if_destroy(ctrl, adapter->if_handle);
1501         return 0;
1502 }
1503
1504 static int be_get_frag_header(struct skb_frag_struct *frag, void **mac_hdr,
1505                                 void **ip_hdr, void **tcpudp_hdr,
1506                                 u64 *hdr_flags, void *priv)
1507 {
1508         struct ethhdr *eh;
1509         struct vlan_ethhdr *veh;
1510         struct iphdr *iph;
1511         u8 *va = page_address(frag->page) + frag->page_offset;
1512         unsigned long ll_hlen;
1513
1514         prefetch(va);
1515         eh = (struct ethhdr *)va;
1516         *mac_hdr = eh;
1517         ll_hlen = ETH_HLEN;
1518         if (eh->h_proto != htons(ETH_P_IP)) {
1519                 if (eh->h_proto == htons(ETH_P_8021Q)) {
1520                         veh = (struct vlan_ethhdr *)va;
1521                         if (veh->h_vlan_encapsulated_proto != htons(ETH_P_IP))
1522                                 return -1;
1523
1524                         ll_hlen += VLAN_HLEN;
1525                 } else {
1526                         return -1;
1527                 }
1528         }
1529         *hdr_flags = LRO_IPV4;
1530         iph = (struct iphdr *)(va + ll_hlen);
1531         *ip_hdr = iph;
1532         if (iph->protocol != IPPROTO_TCP)
1533                 return -1;
1534         *hdr_flags |= LRO_TCP;
1535         *tcpudp_hdr = (u8 *) (*ip_hdr) + (iph->ihl << 2);
1536
1537         return 0;
1538 }
1539
1540 static void be_lro_init(struct be_adapter *adapter, struct net_device *netdev)
1541 {
1542         struct net_lro_mgr *lro_mgr;
1543
1544         lro_mgr = &adapter->rx_obj.lro_mgr;
1545         lro_mgr->dev = netdev;
1546         lro_mgr->features = LRO_F_NAPI;
1547         lro_mgr->ip_summed = CHECKSUM_UNNECESSARY;
1548         lro_mgr->ip_summed_aggr = CHECKSUM_UNNECESSARY;
1549         lro_mgr->max_desc = BE_MAX_LRO_DESCRIPTORS;
1550         lro_mgr->lro_arr = adapter->rx_obj.lro_desc;
1551         lro_mgr->get_frag_header = be_get_frag_header;
1552         lro_mgr->max_aggr = BE_MAX_FRAGS_PER_FRAME;
1553 }
1554
1555 static struct net_device_ops be_netdev_ops = {
1556         .ndo_open               = be_open,
1557         .ndo_stop               = be_close,
1558         .ndo_start_xmit         = be_xmit,
1559         .ndo_get_stats          = be_get_stats,
1560         .ndo_set_rx_mode        = be_set_multicast_list,
1561         .ndo_set_mac_address    = be_mac_addr_set,
1562         .ndo_change_mtu         = be_change_mtu,
1563         .ndo_validate_addr      = eth_validate_addr,
1564         .ndo_vlan_rx_register   = be_vlan_register,
1565         .ndo_vlan_rx_add_vid    = be_vlan_add_vid,
1566         .ndo_vlan_rx_kill_vid   = be_vlan_rem_vid,
1567 };
1568
1569 static void be_netdev_init(struct net_device *netdev)
1570 {
1571         struct be_adapter *adapter = netdev_priv(netdev);
1572
1573         netdev->features |= NETIF_F_SG | NETIF_F_HW_VLAN_RX | NETIF_F_TSO |
1574                 NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_FILTER | NETIF_F_IP_CSUM |
1575                 NETIF_F_IPV6_CSUM | NETIF_F_TSO6;
1576
1577         netdev->flags |= IFF_MULTICAST;
1578
1579         BE_SET_NETDEV_OPS(netdev, &be_netdev_ops);
1580
1581         SET_ETHTOOL_OPS(netdev, &be_ethtool_ops);
1582
1583         be_lro_init(adapter, netdev);
1584
1585         netif_napi_add(netdev, &adapter->rx_eq.napi, be_poll_rx,
1586                 BE_NAPI_WEIGHT);
1587         netif_napi_add(netdev, &adapter->tx_eq.napi, be_poll_tx,
1588                 BE_NAPI_WEIGHT);
1589
1590         netif_carrier_off(netdev);
1591         netif_stop_queue(netdev);
1592 }
1593
1594 static void be_unmap_pci_bars(struct be_adapter *adapter)
1595 {
1596         struct be_ctrl_info *ctrl = &adapter->ctrl;
1597         if (ctrl->csr)
1598                 iounmap(ctrl->csr);
1599         if (ctrl->db)
1600                 iounmap(ctrl->db);
1601         if (ctrl->pcicfg)
1602                 iounmap(ctrl->pcicfg);
1603 }
1604
1605 static int be_map_pci_bars(struct be_adapter *adapter)
1606 {
1607         u8 __iomem *addr;
1608
1609         addr = ioremap_nocache(pci_resource_start(adapter->pdev, 2),
1610                         pci_resource_len(adapter->pdev, 2));
1611         if (addr == NULL)
1612                 return -ENOMEM;
1613         adapter->ctrl.csr = addr;
1614
1615         addr = ioremap_nocache(pci_resource_start(adapter->pdev, 4),
1616                         128 * 1024);
1617         if (addr == NULL)
1618                 goto pci_map_err;
1619         adapter->ctrl.db = addr;
1620
1621         addr = ioremap_nocache(pci_resource_start(adapter->pdev, 1),
1622                         pci_resource_len(adapter->pdev, 1));
1623         if (addr == NULL)
1624                 goto pci_map_err;
1625         adapter->ctrl.pcicfg = addr;
1626
1627         return 0;
1628 pci_map_err:
1629         be_unmap_pci_bars(adapter);
1630         return -ENOMEM;
1631 }
1632
1633
1634 static void be_ctrl_cleanup(struct be_adapter *adapter)
1635 {
1636         struct be_dma_mem *mem = &adapter->ctrl.mbox_mem_alloced;
1637
1638         be_unmap_pci_bars(adapter);
1639
1640         if (mem->va)
1641                 pci_free_consistent(adapter->pdev, mem->size,
1642                         mem->va, mem->dma);
1643 }
1644
1645 /* Initialize the mbox required to send cmds to BE */
1646 static int be_ctrl_init(struct be_adapter *adapter)
1647 {
1648         struct be_ctrl_info *ctrl = &adapter->ctrl;
1649         struct be_dma_mem *mbox_mem_alloc = &ctrl->mbox_mem_alloced;
1650         struct be_dma_mem *mbox_mem_align = &ctrl->mbox_mem;
1651         int status;
1652         u32 val;
1653
1654         status = be_map_pci_bars(adapter);
1655         if (status)
1656                 return status;
1657
1658         mbox_mem_alloc->size = sizeof(struct be_mcc_mailbox) + 16;
1659         mbox_mem_alloc->va = pci_alloc_consistent(adapter->pdev,
1660                                 mbox_mem_alloc->size, &mbox_mem_alloc->dma);
1661         if (!mbox_mem_alloc->va) {
1662                 be_unmap_pci_bars(adapter);
1663                 return -1;
1664         }
1665         mbox_mem_align->size = sizeof(struct be_mcc_mailbox);
1666         mbox_mem_align->va = PTR_ALIGN(mbox_mem_alloc->va, 16);
1667         mbox_mem_align->dma = PTR_ALIGN(mbox_mem_alloc->dma, 16);
1668         memset(mbox_mem_align->va, 0, sizeof(struct be_mcc_mailbox));
1669         spin_lock_init(&ctrl->cmd_lock);
1670
1671         val = ioread32(ctrl->pcicfg + PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET);
1672         ctrl->pci_func = (val >> MEMBAR_CTRL_INT_CTRL_PFUNC_SHIFT) &
1673                                         MEMBAR_CTRL_INT_CTRL_PFUNC_MASK;
1674         return 0;
1675 }
1676
1677 static void be_stats_cleanup(struct be_adapter *adapter)
1678 {
1679         struct be_stats_obj *stats = &adapter->stats;
1680         struct be_dma_mem *cmd = &stats->cmd;
1681
1682         if (cmd->va)
1683                 pci_free_consistent(adapter->pdev, cmd->size,
1684                         cmd->va, cmd->dma);
1685 }
1686
1687 static int be_stats_init(struct be_adapter *adapter)
1688 {
1689         struct be_stats_obj *stats = &adapter->stats;
1690         struct be_dma_mem *cmd = &stats->cmd;
1691
1692         cmd->size = sizeof(struct be_cmd_req_get_stats);
1693         cmd->va = pci_alloc_consistent(adapter->pdev, cmd->size, &cmd->dma);
1694         if (cmd->va == NULL)
1695                 return -1;
1696         return 0;
1697 }
1698
1699 static void __devexit be_remove(struct pci_dev *pdev)
1700 {
1701         struct be_adapter *adapter = pci_get_drvdata(pdev);
1702         if (!adapter)
1703                 return;
1704
1705         unregister_netdev(adapter->netdev);
1706
1707         be_stats_cleanup(adapter);
1708
1709         be_ctrl_cleanup(adapter);
1710
1711         if (adapter->msix_enabled) {
1712                 pci_disable_msix(adapter->pdev);
1713                 adapter->msix_enabled = false;
1714         }
1715
1716         pci_set_drvdata(pdev, NULL);
1717         pci_release_regions(pdev);
1718         pci_disable_device(pdev);
1719
1720         free_netdev(adapter->netdev);
1721 }
1722
1723 static int be_hw_up(struct be_adapter *adapter)
1724 {
1725         struct be_ctrl_info *ctrl = &adapter->ctrl;
1726         int status;
1727
1728         status = be_cmd_POST(ctrl);
1729         if (status)
1730                 return status;
1731
1732         status = be_cmd_get_fw_ver(ctrl, adapter->fw_ver);
1733         if (status)
1734                 return status;
1735
1736         status = be_cmd_query_fw_cfg(ctrl, &adapter->port_num);
1737         return status;
1738 }
1739
1740 static int __devinit be_probe(struct pci_dev *pdev,
1741                         const struct pci_device_id *pdev_id)
1742 {
1743         int status = 0;
1744         struct be_adapter *adapter;
1745         struct net_device *netdev;
1746         struct be_ctrl_info *ctrl;
1747         u8 mac[ETH_ALEN];
1748
1749         status = pci_enable_device(pdev);
1750         if (status)
1751                 goto do_none;
1752
1753         status = pci_request_regions(pdev, DRV_NAME);
1754         if (status)
1755                 goto disable_dev;
1756         pci_set_master(pdev);
1757
1758         netdev = alloc_etherdev(sizeof(struct be_adapter));
1759         if (netdev == NULL) {
1760                 status = -ENOMEM;
1761                 goto rel_reg;
1762         }
1763         adapter = netdev_priv(netdev);
1764         adapter->pdev = pdev;
1765         pci_set_drvdata(pdev, adapter);
1766         adapter->netdev = netdev;
1767
1768         be_msix_enable(adapter);
1769
1770         status = pci_set_dma_mask(pdev, DMA_64BIT_MASK);
1771         if (!status) {
1772                 netdev->features |= NETIF_F_HIGHDMA;
1773         } else {
1774                 status = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
1775                 if (status) {
1776                         dev_err(&pdev->dev, "Could not set PCI DMA Mask\n");
1777                         goto free_netdev;
1778                 }
1779         }
1780
1781         ctrl = &adapter->ctrl;
1782         status = be_ctrl_init(adapter);
1783         if (status)
1784                 goto free_netdev;
1785
1786         status = be_stats_init(adapter);
1787         if (status)
1788                 goto ctrl_clean;
1789
1790         status = be_hw_up(adapter);
1791         if (status)
1792                 goto stats_clean;
1793
1794         status = be_cmd_mac_addr_query(ctrl, mac, MAC_ADDRESS_TYPE_NETWORK,
1795                         true /* permanent */, 0);
1796         if (status)
1797                 goto stats_clean;
1798         memcpy(netdev->dev_addr, mac, ETH_ALEN);
1799
1800         INIT_DELAYED_WORK(&adapter->work, be_worker);
1801         be_netdev_init(netdev);
1802         SET_NETDEV_DEV(netdev, &adapter->pdev->dev);
1803
1804         status = register_netdev(netdev);
1805         if (status != 0)
1806                 goto stats_clean;
1807
1808         dev_info(&pdev->dev, BE_NAME " port %d\n", adapter->port_num);
1809         return 0;
1810
1811 stats_clean:
1812         be_stats_cleanup(adapter);
1813 ctrl_clean:
1814         be_ctrl_cleanup(adapter);
1815 free_netdev:
1816         free_netdev(adapter->netdev);
1817 rel_reg:
1818         pci_release_regions(pdev);
1819 disable_dev:
1820         pci_disable_device(pdev);
1821 do_none:
1822         dev_warn(&pdev->dev, BE_NAME " initialization failed\n");
1823         return status;
1824 }
1825
1826 static int be_suspend(struct pci_dev *pdev, pm_message_t state)
1827 {
1828         struct be_adapter *adapter = pci_get_drvdata(pdev);
1829         struct net_device *netdev =  adapter->netdev;
1830
1831         netif_device_detach(netdev);
1832         if (netif_running(netdev)) {
1833                 rtnl_lock();
1834                 be_close(netdev);
1835                 rtnl_unlock();
1836         }
1837
1838         pci_save_state(pdev);
1839         pci_disable_device(pdev);
1840         pci_set_power_state(pdev, pci_choose_state(pdev, state));
1841         return 0;
1842 }
1843
1844 static int be_resume(struct pci_dev *pdev)
1845 {
1846         int status = 0;
1847         struct be_adapter *adapter = pci_get_drvdata(pdev);
1848         struct net_device *netdev =  adapter->netdev;
1849
1850         netif_device_detach(netdev);
1851
1852         status = pci_enable_device(pdev);
1853         if (status)
1854                 return status;
1855
1856         pci_set_power_state(pdev, 0);
1857         pci_restore_state(pdev);
1858
1859         be_vids_config(netdev);
1860
1861         if (netif_running(netdev)) {
1862                 rtnl_lock();
1863                 be_open(netdev);
1864                 rtnl_unlock();
1865         }
1866         netif_device_attach(netdev);
1867         return 0;
1868 }
1869
1870 static struct pci_driver be_driver = {
1871         .name = DRV_NAME,
1872         .id_table = be_dev_ids,
1873         .probe = be_probe,
1874         .remove = be_remove,
1875         .suspend = be_suspend,
1876         .resume = be_resume
1877 };
1878
1879 static int __init be_init_module(void)
1880 {
1881         if (rx_frag_size != 8192 && rx_frag_size != 4096
1882                 && rx_frag_size != 2048) {
1883                 printk(KERN_WARNING DRV_NAME
1884                         " : Module param rx_frag_size must be 2048/4096/8192."
1885                         " Using 2048\n");
1886                 rx_frag_size = 2048;
1887         }
1888         /* Ensure rx_frag_size is aligned to chache line */
1889         if (SKB_DATA_ALIGN(rx_frag_size) != rx_frag_size) {
1890                 printk(KERN_WARNING DRV_NAME
1891                         " : Bad module param rx_frag_size. Using 2048\n");
1892                 rx_frag_size = 2048;
1893         }
1894
1895         return pci_register_driver(&be_driver);
1896 }
1897 module_init(be_init_module);
1898
1899 static void __exit be_exit_module(void)
1900 {
1901         pci_unregister_driver(&be_driver);
1902 }
1903 module_exit(be_exit_module);