drivers/scsi/bnx2fc/bnx2fc_fcoe.c

   1 /* bnx2fc_fcoe.c: Broadcom NetXtreme II Linux FCoE offload driver.
   2  * This file contains the code that interacts with libfc, libfcoe,
   3  * cnic modules to create FCoE instances, send/receive non-offloaded
   4  * FIP/FCoE packets, listen to link events etc.
   5  *
   6  * Copyright (c) 2008 - 2010 Broadcom Corporation
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation.
  11  *
  12  * Written by: Bhanu Prakash Gollapudi (bprakash@broadcom.com)
  13  */
  14
  15 #include "bnx2fc.h"
  16
  17 static struct list_head adapter_list;
  18 static u32 adapter_count;
  19 static DEFINE_MUTEX(bnx2fc_dev_lock);
  20 DEFINE_PER_CPU(struct bnx2fc_percpu_s, bnx2fc_percpu);
  21
  22 #define DRV_MODULE_NAME         "bnx2fc"
  23 #define DRV_MODULE_VERSION      BNX2FC_VERSION
  24 #define DRV_MODULE_RELDATE      "Mar 17, 2011"
  25
  26
  27 static char version[] __devinitdata =
  28                 "Broadcom NetXtreme II FCoE Driver " DRV_MODULE_NAME \
  29                 " v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n";
  30
  31
  32 MODULE_AUTHOR("Bhanu Prakash Gollapudi <bprakash@broadcom.com>");
  33 MODULE_DESCRIPTION("Broadcom NetXtreme II BCM57710 FCoE Driver");
  34 MODULE_LICENSE("GPL");
  35 MODULE_VERSION(DRV_MODULE_VERSION);
  36
  37 #define BNX2FC_MAX_QUEUE_DEPTH  256
  38 #define BNX2FC_MIN_QUEUE_DEPTH  32
  39 #define FCOE_WORD_TO_BYTE  4
  40
  41 static struct scsi_transport_template   *bnx2fc_transport_template;
  42 static struct scsi_transport_template   *bnx2fc_vport_xport_template;
  43
  44 struct workqueue_struct *bnx2fc_wq;
  45
  46 /* bnx2fc structure needs only one instance of the fcoe_percpu_s structure.
  47  * Here the io threads are per cpu but the l2 thread is just one
  48  */
  49 struct fcoe_percpu_s bnx2fc_global;
  50 DEFINE_SPINLOCK(bnx2fc_global_lock);
  51
  52 static struct cnic_ulp_ops bnx2fc_cnic_cb;
  53 static struct libfc_function_template bnx2fc_libfc_fcn_templ;
  54 static struct scsi_host_template bnx2fc_shost_template;
  55 static struct fc_function_template bnx2fc_transport_function;
  56 static struct fc_function_template bnx2fc_vport_xport_function;
  57 static int bnx2fc_create(struct net_device *netdev, enum fip_state fip_mode);
  58 static int bnx2fc_destroy(struct net_device *net_device);
  59 static int bnx2fc_enable(struct net_device *netdev);
  60 static int bnx2fc_disable(struct net_device *netdev);
  61
  62 static void bnx2fc_recv_frame(struct sk_buff *skb);
  63
  64 static void bnx2fc_start_disc(struct bnx2fc_hba *hba);
  65 static int bnx2fc_shost_config(struct fc_lport *lport, struct device *dev);
  66 static int bnx2fc_net_config(struct fc_lport *lp);
  67 static int bnx2fc_lport_config(struct fc_lport *lport);
  68 static int bnx2fc_em_config(struct fc_lport *lport);
  69 static int bnx2fc_bind_adapter_devices(struct bnx2fc_hba *hba);
  70 static void bnx2fc_unbind_adapter_devices(struct bnx2fc_hba *hba);
  71 static int bnx2fc_bind_pcidev(struct bnx2fc_hba *hba);
  72 static void bnx2fc_unbind_pcidev(struct bnx2fc_hba *hba);
  73 static struct fc_lport *bnx2fc_if_create(struct bnx2fc_hba *hba,
  74                                   struct device *parent, int npiv);
  75 static void bnx2fc_destroy_work(struct work_struct *work);
  76
  77 static struct bnx2fc_hba *bnx2fc_hba_lookup(struct net_device *phys_dev);
  78 static struct bnx2fc_hba *bnx2fc_find_hba_for_cnic(struct cnic_dev *cnic);
  79
  80 static int bnx2fc_fw_init(struct bnx2fc_hba *hba);
  81 static void bnx2fc_fw_destroy(struct bnx2fc_hba *hba);
  82
  83 static void bnx2fc_port_shutdown(struct fc_lport *lport);
  84 static void bnx2fc_stop(struct bnx2fc_hba *hba);
  85 static int __init bnx2fc_mod_init(void);
  86 static void __exit bnx2fc_mod_exit(void);
  87
  88 unsigned int bnx2fc_debug_level;
  89 module_param_named(debug_logging, bnx2fc_debug_level, int, S_IRUGO|S_IWUSR);
  90
  91 static int bnx2fc_cpu_callback(struct notifier_block *nfb,
  92                              unsigned long action, void *hcpu);
  93 /* notification function for CPU hotplug events */
  94 static struct notifier_block bnx2fc_cpu_notifier = {
  95         .notifier_call = bnx2fc_cpu_callback,
  96 };
  97
  98 static void bnx2fc_clean_rx_queue(struct fc_lport *lp)
  99 {
 100         struct fcoe_percpu_s *bg;
 101         struct fcoe_rcv_info *fr;
 102         struct sk_buff_head *list;
 103         struct sk_buff *skb, *next;
 104         struct sk_buff *head;
 105
 106         bg = &bnx2fc_global;
 107         spin_lock_bh(&bg->fcoe_rx_list.lock);
 108         list = &bg->fcoe_rx_list;
 109         head = list->next;
 110         for (skb = head; skb != (struct sk_buff *)list;
 111              skb = next) {
 112                 next = skb->next;
 113                 fr = fcoe_dev_from_skb(skb);
 114                 if (fr->fr_dev == lp) {
 115                         __skb_unlink(skb, list);
 116                         kfree_skb(skb);
 117                 }
 118         }
 119         spin_unlock_bh(&bg->fcoe_rx_list.lock);
 120 }
 121
 122 int bnx2fc_get_paged_crc_eof(struct sk_buff *skb, int tlen)
 123 {
 124         int rc;
 125         spin_lock(&bnx2fc_global_lock);
 126         rc = fcoe_get_paged_crc_eof(skb, tlen, &bnx2fc_global);
 127         spin_unlock(&bnx2fc_global_lock);
 128
 129         return rc;
 130 }
 131
 132 static void bnx2fc_abort_io(struct fc_lport *lport)
 133 {
 134         /*
 135          * This function is no-op for bnx2fc, but we do
 136          * not want to leave it as NULL either, as libfc
 137          * can call the default function which is
 138          * fc_fcp_abort_io.
 139          */
 140 }
 141
 142 static void bnx2fc_cleanup(struct fc_lport *lport)
 143 {
 144         struct fcoe_port *port = lport_priv(lport);
 145         struct bnx2fc_hba *hba = port->priv;
 146         struct bnx2fc_rport *tgt;
 147         int i;
 148
 149         BNX2FC_MISC_DBG("Entered %s\n", __func__);
 150         mutex_lock(&hba->hba_mutex);
 151         spin_lock_bh(&hba->hba_lock);
 152         for (i = 0; i < BNX2FC_NUM_MAX_SESS; i++) {
 153                 tgt = hba->tgt_ofld_list[i];
 154                 if (tgt) {
 155                         /* Cleanup IOs belonging to requested vport */
 156                         if (tgt->port == port) {
 157                                 spin_unlock_bh(&hba->hba_lock);
 158                                 BNX2FC_TGT_DBG(tgt, "flush/cleanup\n");
 159                                 bnx2fc_flush_active_ios(tgt);
 160                                 spin_lock_bh(&hba->hba_lock);
 161                         }
 162                 }
 163         }
 164         spin_unlock_bh(&hba->hba_lock);
 165         mutex_unlock(&hba->hba_mutex);
 166 }
 167
 168 static int bnx2fc_xmit_l2_frame(struct bnx2fc_rport *tgt,
 169                              struct fc_frame *fp)
 170 {
 171         struct fc_rport_priv *rdata = tgt->rdata;
 172         struct fc_frame_header *fh;
 173         int rc = 0;
 174
 175         fh = fc_frame_header_get(fp);
 176         BNX2FC_TGT_DBG(tgt, "Xmit L2 frame rport = 0x%x, oxid = 0x%x, "
 177                         "r_ctl = 0x%x\n", rdata->ids.port_id,
 178                         ntohs(fh->fh_ox_id), fh->fh_r_ctl);
 179         if ((fh->fh_type == FC_TYPE_ELS) &&
 180             (fh->fh_r_ctl == FC_RCTL_ELS_REQ)) {
 181
 182                 switch (fc_frame_payload_op(fp)) {
 183                 case ELS_ADISC:
 184                         rc = bnx2fc_send_adisc(tgt, fp);
 185                         break;
 186                 case ELS_LOGO:
 187                         rc = bnx2fc_send_logo(tgt, fp);
 188                         break;
 189                 case ELS_RLS:
 190                         rc = bnx2fc_send_rls(tgt, fp);
 191                         break;
 192                 default:
 193                         break;
 194                 }
 195         } else if ((fh->fh_type ==  FC_TYPE_BLS) &&
 196             (fh->fh_r_ctl == FC_RCTL_BA_ABTS))
 197                 BNX2FC_TGT_DBG(tgt, "ABTS frame\n");
 198         else {
 199                 BNX2FC_TGT_DBG(tgt, "Send L2 frame type 0x%x "
 200                                 "rctl 0x%x thru non-offload path\n",
 201                                 fh->fh_type, fh->fh_r_ctl);
 202                 return -ENODEV;
 203         }
 204         if (rc)
 205                 return -ENOMEM;
 206         else
 207                 return 0;
 208 }
 209
 210 /**
 211  * bnx2fc_xmit - bnx2fc's FCoE frame transmit function
 212  *
 213  * @lport:      the associated local port
 214  * @fp: the fc_frame to be transmitted
 215  */
 216 static int bnx2fc_xmit(struct fc_lport *lport, struct fc_frame *fp)
 217 {
 218         struct ethhdr           *eh;
 219         struct fcoe_crc_eof     *cp;
 220         struct sk_buff          *skb;
 221         struct fc_frame_header  *fh;
 222         struct bnx2fc_hba       *hba;
 223         struct fcoe_port        *port;
 224         struct fcoe_hdr         *hp;
 225         struct bnx2fc_rport     *tgt;
 226         struct fcoe_dev_stats   *stats;
 227         u8                      sof, eof;
 228         u32                     crc;
 229         unsigned int            hlen, tlen, elen;
 230         int                     wlen, rc = 0;
 231
 232         port = (struct fcoe_port *)lport_priv(lport);
 233         hba = port->priv;
 234
 235         fh = fc_frame_header_get(fp);
 236
 237         skb = fp_skb(fp);
 238         if (!lport->link_up) {
 239                 BNX2FC_HBA_DBG(lport, "bnx2fc_xmit link down\n");
 240                 kfree_skb(skb);
 241                 return 0;
 242         }
 243
 244         if (unlikely(fh->fh_r_ctl == FC_RCTL_ELS_REQ)) {
 245                 if (!hba->ctlr.sel_fcf) {
 246                         BNX2FC_HBA_DBG(lport, "FCF not selected yet!\n");
 247                         kfree_skb(skb);
 248                         return -EINVAL;
 249                 }
 250                 if (fcoe_ctlr_els_send(&hba->ctlr, lport, skb))
 251                         return 0;
 252         }
 253
 254         sof = fr_sof(fp);
 255         eof = fr_eof(fp);
 256
 257         /*
 258          * Snoop the frame header to check if the frame is for
 259          * an offloaded session
 260          */
 261         /*
 262          * tgt_ofld_list access is synchronized using
 263          * both hba mutex and hba lock. Atleast hba mutex or
 264          * hba lock needs to be held for read access.
 265          */
 266
 267         spin_lock_bh(&hba->hba_lock);
 268         tgt = bnx2fc_tgt_lookup(port, ntoh24(fh->fh_d_id));
 269         if (tgt && (test_bit(BNX2FC_FLAG_SESSION_READY, &tgt->flags))) {
 270                 /* This frame is for offloaded session */
 271                 BNX2FC_HBA_DBG(lport, "xmit: Frame is for offloaded session "
 272                                 "port_id = 0x%x\n", ntoh24(fh->fh_d_id));
 273                 spin_unlock_bh(&hba->hba_lock);
 274                 rc = bnx2fc_xmit_l2_frame(tgt, fp);
 275                 if (rc != -ENODEV) {
 276                         kfree_skb(skb);
 277                         return rc;
 278                 }
 279         } else {
 280                 spin_unlock_bh(&hba->hba_lock);
 281         }
 282
 283         elen = sizeof(struct ethhdr);
 284         hlen = sizeof(struct fcoe_hdr);
 285         tlen = sizeof(struct fcoe_crc_eof);
 286         wlen = (skb->len - tlen + sizeof(crc)) / FCOE_WORD_TO_BYTE;
 287
 288         skb->ip_summed = CHECKSUM_NONE;
 289         crc = fcoe_fc_crc(fp);
 290
 291         /* copy port crc and eof to the skb buff */
 292         if (skb_is_nonlinear(skb)) {
 293                 skb_frag_t *frag;
 294                 if (bnx2fc_get_paged_crc_eof(skb, tlen)) {
 295                         kfree_skb(skb);
 296                         return -ENOMEM;
 297                 }
 298                 frag = &skb_shinfo(skb)->frags[skb_shinfo(skb)->nr_frags - 1];
 299                 cp = kmap_atomic(frag->page, KM_SKB_DATA_SOFTIRQ)
 300                                 + frag->page_offset;
 301         } else {
 302                 cp = (struct fcoe_crc_eof *)skb_put(skb, tlen);
 303         }
 304
 305         memset(cp, 0, sizeof(*cp));
 306         cp->fcoe_eof = eof;
 307         cp->fcoe_crc32 = cpu_to_le32(~crc);
 308         if (skb_is_nonlinear(skb)) {
 309                 kunmap_atomic(cp, KM_SKB_DATA_SOFTIRQ);
 310                 cp = NULL;
 311         }
 312
 313         /* adjust skb network/transport offsets to match mac/fcoe/port */
 314         skb_push(skb, elen + hlen);
 315         skb_reset_mac_header(skb);
 316         skb_reset_network_header(skb);
 317         skb->mac_len = elen;
 318         skb->protocol = htons(ETH_P_FCOE);
 319         skb->dev = hba->netdev;
 320
 321         /* fill up mac and fcoe headers */
 322         eh = eth_hdr(skb);
 323         eh->h_proto = htons(ETH_P_FCOE);
 324         if (hba->ctlr.map_dest)
 325                 fc_fcoe_set_mac(eh->h_dest, fh->fh_d_id);
 326         else
 327                 /* insert GW address */
 328                 memcpy(eh->h_dest, hba->ctlr.dest_addr, ETH_ALEN);
 329
 330         if (unlikely(hba->ctlr.flogi_oxid != FC_XID_UNKNOWN))
 331                 memcpy(eh->h_source, hba->ctlr.ctl_src_addr, ETH_ALEN);
 332         else
 333                 memcpy(eh->h_source, port->data_src_addr, ETH_ALEN);
 334
 335         hp = (struct fcoe_hdr *)(eh + 1);
 336         memset(hp, 0, sizeof(*hp));
 337         if (FC_FCOE_VER)
 338                 FC_FCOE_ENCAPS_VER(hp, FC_FCOE_VER);
 339         hp->fcoe_sof = sof;
 340
 341         /* fcoe lso, mss is in max_payload which is non-zero for FCP data */
 342         if (lport->seq_offload && fr_max_payload(fp)) {
 343                 skb_shinfo(skb)->gso_type = SKB_GSO_FCOE;
 344                 skb_shinfo(skb)->gso_size = fr_max_payload(fp);
 345         } else {
 346                 skb_shinfo(skb)->gso_type = 0;
 347                 skb_shinfo(skb)->gso_size = 0;
 348         }
 349
 350         /*update tx stats */
 351         stats = per_cpu_ptr(lport->dev_stats, get_cpu());
 352         stats->TxFrames++;
 353         stats->TxWords += wlen;
 354         put_cpu();
 355
 356         /* send down to lld */
 357         fr_dev(fp) = lport;
 358         if (port->fcoe_pending_queue.qlen)
 359                 fcoe_check_wait_queue(lport, skb);
 360         else if (fcoe_start_io(skb))
 361                 fcoe_check_wait_queue(lport, skb);
 362
 363         return 0;
 364 }
 365
 366 /**
 367  * bnx2fc_rcv - This is bnx2fc's receive function called by NET_RX_SOFTIRQ
 368  *
 369  * @skb:        the receive socket buffer
 370  * @dev:        associated net device
 371  * @ptype:      context
 372  * @olddev:     last device
 373  *
 374  * This function receives the packet and builds FC frame and passes it up
 375  */
 376 static int bnx2fc_rcv(struct sk_buff *skb, struct net_device *dev,
 377                 struct packet_type *ptype, struct net_device *olddev)
 378 {
 379         struct fc_lport *lport;
 380         struct bnx2fc_hba *hba;
 381         struct fc_frame_header *fh;
 382         struct fcoe_rcv_info *fr;
 383         struct fcoe_percpu_s *bg;
 384         unsigned short oxid;
 385
 386         hba = container_of(ptype, struct bnx2fc_hba, fcoe_packet_type);
 387         lport = hba->ctlr.lp;
 388
 389         if (unlikely(lport == NULL)) {
 390                 printk(KERN_ALERT PFX "bnx2fc_rcv: lport is NULL\n");
 391                 goto err;
 392         }
 393
 394         if (unlikely(eth_hdr(skb)->h_proto != htons(ETH_P_FCOE))) {
 395                 printk(KERN_ALERT PFX "bnx2fc_rcv: Wrong FC type frame\n");
 396                 goto err;
 397         }
 398
 399         /*
 400          * Check for minimum frame length, and make sure required FCoE
 401          * and FC headers are pulled into the linear data area.
 402          */
 403         if (unlikely((skb->len < FCOE_MIN_FRAME) ||
 404             !pskb_may_pull(skb, FCOE_HEADER_LEN)))
 405                 goto err;
 406
 407         skb_set_transport_header(skb, sizeof(struct fcoe_hdr));
 408         fh = (struct fc_frame_header *) skb_transport_header(skb);
 409
 410         oxid = ntohs(fh->fh_ox_id);
 411
 412         fr = fcoe_dev_from_skb(skb);
 413         fr->fr_dev = lport;
 414         fr->ptype = ptype;
 415
 416         bg = &bnx2fc_global;
 417         spin_lock_bh(&bg->fcoe_rx_list.lock);
 418
 419         __skb_queue_tail(&bg->fcoe_rx_list, skb);
 420         if (bg->fcoe_rx_list.qlen == 1)
 421                 wake_up_process(bg->thread);
 422
 423         spin_unlock_bh(&bg->fcoe_rx_list.lock);
 424
 425         return 0;
 426 err:
 427         kfree_skb(skb);
 428         return -1;
 429 }
 430
 431 static int bnx2fc_l2_rcv_thread(void *arg)
 432 {
 433         struct fcoe_percpu_s *bg = arg;
 434         struct sk_buff *skb;
 435
 436         set_user_nice(current, -20);
 437         set_current_state(TASK_INTERRUPTIBLE);
 438         while (!kthread_should_stop()) {
 439                 schedule();
 440                 spin_lock_bh(&bg->fcoe_rx_list.lock);
 441                 while ((skb = __skb_dequeue(&bg->fcoe_rx_list)) != NULL) {
 442                         spin_unlock_bh(&bg->fcoe_rx_list.lock);
 443                         bnx2fc_recv_frame(skb);
 444                         spin_lock_bh(&bg->fcoe_rx_list.lock);
 445                 }
 446                 __set_current_state(TASK_INTERRUPTIBLE);
 447                 spin_unlock_bh(&bg->fcoe_rx_list.lock);
 448         }
 449         __set_current_state(TASK_RUNNING);
 450         return 0;
 451 }
 452
 453
 454 static void bnx2fc_recv_frame(struct sk_buff *skb)
 455 {
 456         u32 fr_len;
 457         struct fc_lport *lport;
 458         struct fcoe_rcv_info *fr;
 459         struct fcoe_dev_stats *stats;
 460         struct fc_frame_header *fh;
 461         struct fcoe_crc_eof crc_eof;
 462         struct fc_frame *fp;
 463         struct fc_lport *vn_port;
 464         struct fcoe_port *port;
 465         u8 *mac = NULL;
 466         u8 *dest_mac = NULL;
 467         struct fcoe_hdr *hp;
 468
 469         fr = fcoe_dev_from_skb(skb);
 470         lport = fr->fr_dev;
 471         if (unlikely(lport == NULL)) {
 472                 printk(KERN_ALERT PFX "Invalid lport struct\n");
 473                 kfree_skb(skb);
 474                 return;
 475         }
 476
 477         if (skb_is_nonlinear(skb))
 478                 skb_linearize(skb);
 479         mac = eth_hdr(skb)->h_source;
 480         dest_mac = eth_hdr(skb)->h_dest;
 481
 482         /* Pull the header */
 483         hp = (struct fcoe_hdr *) skb_network_header(skb);
 484         fh = (struct fc_frame_header *) skb_transport_header(skb);
 485         skb_pull(skb, sizeof(struct fcoe_hdr));
 486         fr_len = skb->len - sizeof(struct fcoe_crc_eof);
 487
 488         stats = per_cpu_ptr(lport->dev_stats, get_cpu());
 489         stats->RxFrames++;
 490         stats->RxWords += fr_len / FCOE_WORD_TO_BYTE;
 491
 492         fp = (struct fc_frame *)skb;
 493         fc_frame_init(fp);
 494         fr_dev(fp) = lport;
 495         fr_sof(fp) = hp->fcoe_sof;
 496         if (skb_copy_bits(skb, fr_len, &crc_eof, sizeof(crc_eof))) {
 497                 put_cpu();
 498                 kfree_skb(skb);
 499                 return;
 500         }
 501         fr_eof(fp) = crc_eof.fcoe_eof;
 502         fr_crc(fp) = crc_eof.fcoe_crc32;
 503         if (pskb_trim(skb, fr_len)) {
 504                 put_cpu();
 505                 kfree_skb(skb);
 506                 return;
 507         }
 508
 509         fh = fc_frame_header_get(fp);
 510
 511         vn_port = fc_vport_id_lookup(lport, ntoh24(fh->fh_d_id));
 512         if (vn_port) {
 513                 port = lport_priv(vn_port);
 514                 if (compare_ether_addr(port->data_src_addr, dest_mac)
 515                     != 0) {
 516                         BNX2FC_HBA_DBG(lport, "fpma mismatch\n");
 517                         put_cpu();
 518                         kfree_skb(skb);
 519                         return;
 520                 }
 521         }
 522         if (fh->fh_r_ctl == FC_RCTL_DD_SOL_DATA &&
 523             fh->fh_type == FC_TYPE_FCP) {
 524                 /* Drop FCP data. We dont this in L2 path */
 525                 put_cpu();
 526                 kfree_skb(skb);
 527                 return;
 528         }
 529         if (fh->fh_r_ctl == FC_RCTL_ELS_REQ &&
 530             fh->fh_type == FC_TYPE_ELS) {
 531                 switch (fc_frame_payload_op(fp)) {
 532                 case ELS_LOGO:
 533                         if (ntoh24(fh->fh_s_id) == FC_FID_FLOGI) {
 534                                 /* drop non-FIP LOGO */
 535                                 put_cpu();
 536                                 kfree_skb(skb);
 537                                 return;
 538                         }
 539                         break;
 540                 }
 541         }
 542         if (le32_to_cpu(fr_crc(fp)) !=
 543                         ~crc32(~0, skb->data, fr_len)) {
 544                 if (stats->InvalidCRCCount < 5)
 545                         printk(KERN_WARNING PFX "dropping frame with "
 546                                "CRC error\n");
 547                 stats->InvalidCRCCount++;
 548                 put_cpu();
 549                 kfree_skb(skb);
 550                 return;
 551         }
 552         put_cpu();
 553         fc_exch_recv(lport, fp);
 554 }
 555
 556 /**
 557  * bnx2fc_percpu_io_thread - thread per cpu for ios
 558  *
 559  * @arg:        ptr to bnx2fc_percpu_info structure
 560  */
 561 int bnx2fc_percpu_io_thread(void *arg)
 562 {
 563         struct bnx2fc_percpu_s *p = arg;
 564         struct bnx2fc_work *work, *tmp;
 565         LIST_HEAD(work_list);
 566
 567         set_user_nice(current, -20);
 568         set_current_state(TASK_INTERRUPTIBLE);
 569         while (!kthread_should_stop()) {
 570                 schedule();
 571                 spin_lock_bh(&p->fp_work_lock);
 572                 while (!list_empty(&p->work_list)) {
 573                         list_splice_init(&p->work_list, &work_list);
 574                         spin_unlock_bh(&p->fp_work_lock);
 575
 576                         list_for_each_entry_safe(work, tmp, &work_list, list) {
 577                                 list_del_init(&work->list);
 578                                 bnx2fc_process_cq_compl(work->tgt, work->wqe);
 579                                 kfree(work);
 580                         }
 581
 582                         spin_lock_bh(&p->fp_work_lock);
 583                 }
 584                 __set_current_state(TASK_INTERRUPTIBLE);
 585                 spin_unlock_bh(&p->fp_work_lock);
 586         }
 587         __set_current_state(TASK_RUNNING);
 588
 589         return 0;
 590 }
 591
 592 static struct fc_host_statistics *bnx2fc_get_host_stats(struct Scsi_Host *shost)
 593 {
 594         struct fc_host_statistics *bnx2fc_stats;
 595         struct fc_lport *lport = shost_priv(shost);
 596         struct fcoe_port *port = lport_priv(lport);
 597         struct bnx2fc_hba *hba = port->priv;
 598         struct fcoe_statistics_params *fw_stats;
 599         int rc = 0;
 600
 601         fw_stats = (struct fcoe_statistics_params *)hba->stats_buffer;
 602         if (!fw_stats)
 603                 return NULL;
 604
 605         bnx2fc_stats = fc_get_host_stats(shost);
 606
 607         init_completion(&hba->stat_req_done);
 608         if (bnx2fc_send_stat_req(hba))
 609                 return bnx2fc_stats;
 610         rc = wait_for_completion_timeout(&hba->stat_req_done, (2 * HZ));
 611         if (!rc) {
 612                 BNX2FC_HBA_DBG(lport, "FW stat req timed out\n");
 613                 return bnx2fc_stats;
 614         }
 615         bnx2fc_stats->invalid_crc_count += fw_stats->rx_stat1.fc_crc_cnt;
 616         bnx2fc_stats->tx_frames += fw_stats->tx_stat.fcoe_tx_pkt_cnt;
 617         bnx2fc_stats->tx_words += (fw_stats->tx_stat.fcoe_tx_byte_cnt) / 4;
 618         bnx2fc_stats->rx_frames += fw_stats->rx_stat0.fcoe_rx_pkt_cnt;
 619         bnx2fc_stats->rx_words += (fw_stats->rx_stat0.fcoe_rx_byte_cnt) / 4;
 620
 621         bnx2fc_stats->dumped_frames = 0;
 622         bnx2fc_stats->lip_count = 0;
 623         bnx2fc_stats->nos_count = 0;
 624         bnx2fc_stats->loss_of_sync_count = 0;
 625         bnx2fc_stats->loss_of_signal_count = 0;
 626         bnx2fc_stats->prim_seq_protocol_err_count = 0;
 627
 628         return bnx2fc_stats;
 629 }
 630
 631 static int bnx2fc_shost_config(struct fc_lport *lport, struct device *dev)
 632 {
 633         struct fcoe_port *port = lport_priv(lport);
 634         struct bnx2fc_hba *hba = port->priv;
 635         struct Scsi_Host *shost = lport->host;
 636         int rc = 0;
 637
 638         shost->max_cmd_len = BNX2FC_MAX_CMD_LEN;
 639         shost->max_lun = BNX2FC_MAX_LUN;
 640         shost->max_id = BNX2FC_MAX_FCP_TGT;
 641         shost->max_channel = 0;
 642         if (lport->vport)
 643                 shost->transportt = bnx2fc_vport_xport_template;
 644         else
 645                 shost->transportt = bnx2fc_transport_template;
 646
 647         /* Add the new host to SCSI-ml */
 648         rc = scsi_add_host(lport->host, dev);
 649         if (rc) {
 650                 printk(KERN_ERR PFX "Error on scsi_add_host\n");
 651                 return rc;
 652         }
 653         if (!lport->vport)
 654                 fc_host_max_npiv_vports(lport->host) = USHRT_MAX;
 655         sprintf(fc_host_symbolic_name(lport->host), "%s v%s over %s",
 656                 BNX2FC_NAME, BNX2FC_VERSION,
 657                 hba->netdev->name);
 658
 659         return 0;
 660 }
 661
 662 static void bnx2fc_link_speed_update(struct fc_lport *lport)
 663 {
 664         struct fcoe_port *port = lport_priv(lport);
 665         struct bnx2fc_hba *hba = port->priv;
 666         struct net_device *netdev = hba->netdev;
 667         struct ethtool_cmd ecmd;
 668
 669         if (!dev_ethtool_get_settings(netdev, &ecmd)) {
 670                 lport->link_supported_speeds &=
 671                         ~(FC_PORTSPEED_1GBIT | FC_PORTSPEED_10GBIT);
 672                 if (ecmd.supported & (SUPPORTED_1000baseT_Half |
 673                                       SUPPORTED_1000baseT_Full))
 674                         lport->link_supported_speeds |= FC_PORTSPEED_1GBIT;
 675                 if (ecmd.supported & SUPPORTED_10000baseT_Full)
 676                         lport->link_supported_speeds |= FC_PORTSPEED_10GBIT;
 677
 678                 switch (ethtool_cmd_speed(&ecmd)) {
 679                 case SPEED_1000:
 680                         lport->link_speed = FC_PORTSPEED_1GBIT;
 681                         break;
 682                 case SPEED_10000:
 683                         lport->link_speed = FC_PORTSPEED_10GBIT;
 684                         break;
 685                 }
 686         }
 687 }
 688 static int bnx2fc_link_ok(struct fc_lport *lport)
 689 {
 690         struct fcoe_port *port = lport_priv(lport);
 691         struct bnx2fc_hba *hba = port->priv;
 692         struct net_device *dev = hba->phys_dev;
 693         int rc = 0;
 694
 695         if ((dev->flags & IFF_UP) && netif_carrier_ok(dev))
 696                 clear_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
 697         else {
 698                 set_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
 699                 rc = -1;
 700         }
 701         return rc;
 702 }
 703
 704 /**
 705  * bnx2fc_get_link_state - get network link state
 706  *
 707  * @hba:        adapter instance pointer
 708  *
 709  * updates adapter structure flag based on netdev state
 710  */
 711 void bnx2fc_get_link_state(struct bnx2fc_hba *hba)
 712 {
 713         if (test_bit(__LINK_STATE_NOCARRIER, &hba->netdev->state))
 714                 set_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
 715         else
 716                 clear_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
 717 }
 718
 719 static int bnx2fc_net_config(struct fc_lport *lport)
 720 {
 721         struct bnx2fc_hba *hba;
 722         struct fcoe_port *port;
 723         u64 wwnn, wwpn;
 724
 725         port = lport_priv(lport);
 726         hba = port->priv;
 727
 728         /* require support for get_pauseparam ethtool op. */
 729         if (!hba->phys_dev->ethtool_ops ||
 730             !hba->phys_dev->ethtool_ops->get_pauseparam)
 731                 return -EOPNOTSUPP;
 732
 733         if (fc_set_mfs(lport, BNX2FC_MFS))
 734                 return -EINVAL;
 735
 736         skb_queue_head_init(&port->fcoe_pending_queue);
 737         port->fcoe_pending_queue_active = 0;
 738         setup_timer(&port->timer, fcoe_queue_timer, (unsigned long) lport);
 739
 740         bnx2fc_link_speed_update(lport);
 741
 742         if (!lport->vport) {
 743                 wwnn = fcoe_wwn_from_mac(hba->ctlr.ctl_src_addr, 1, 0);
 744                 BNX2FC_HBA_DBG(lport, "WWNN = 0x%llx\n", wwnn);
 745                 fc_set_wwnn(lport, wwnn);
 746
 747                 wwpn = fcoe_wwn_from_mac(hba->ctlr.ctl_src_addr, 2, 0);
 748                 BNX2FC_HBA_DBG(lport, "WWPN = 0x%llx\n", wwpn);
 749                 fc_set_wwpn(lport, wwpn);
 750         }
 751
 752         return 0;
 753 }
 754
 755 static void bnx2fc_destroy_timer(unsigned long data)
 756 {
 757         struct bnx2fc_hba *hba = (struct bnx2fc_hba *)data;
 758
 759         BNX2FC_HBA_DBG(hba->ctlr.lp, "ERROR:bnx2fc_destroy_timer - "
 760                    "Destroy compl not received!!\n");
 761         hba->flags |= BNX2FC_FLAG_DESTROY_CMPL;
 762         wake_up_interruptible(&hba->destroy_wait);
 763 }
 764
 765 /**
 766  * bnx2fc_indicate_netevent - Generic netdev event handler
 767  *
 768  * @context:    adapter structure pointer
 769  * @event:      event type
 770  *
 771  * Handles NETDEV_UP, NETDEV_DOWN, NETDEV_GOING_DOWN,NETDEV_CHANGE and
 772  * NETDEV_CHANGE_MTU events
 773  */
 774 static void bnx2fc_indicate_netevent(void *context, unsigned long event)
 775 {
 776         struct bnx2fc_hba *hba = (struct bnx2fc_hba *)context;
 777         struct fc_lport *lport = hba->ctlr.lp;
 778         struct fc_lport *vport;
 779         u32 link_possible = 1;
 780
 781         if (!test_bit(BNX2FC_CREATE_DONE, &hba->init_done)) {
 782                 BNX2FC_MISC_DBG("driver not ready. event=%s %ld\n",
 783                            hba->netdev->name, event);
 784                 return;
 785         }
 786
 787         /*
 788          * ASSUMPTION:
 789          * indicate_netevent cannot be called from cnic unless bnx2fc
 790          * does register_device
 791          */
 792         BUG_ON(!lport);
 793
 794         BNX2FC_HBA_DBG(lport, "enter netevent handler - event=%s %ld\n",
 795                                 hba->netdev->name, event);
 796
 797         switch (event) {
 798         case NETDEV_UP:
 799                 BNX2FC_HBA_DBG(lport, "Port up, adapter_state = %ld\n",
 800                         hba->adapter_state);
 801                 if (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state))
 802                         printk(KERN_ERR "indicate_netevent: "\
 803                                         "adapter is not UP!!\n");
 804                 break;
 805
 806         case NETDEV_DOWN:
 807                 BNX2FC_HBA_DBG(lport, "Port down\n");
 808                 clear_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state);
 809                 clear_bit(ADAPTER_STATE_UP, &hba->adapter_state);
 810                 link_possible = 0;
 811                 break;
 812
 813         case NETDEV_GOING_DOWN:
 814                 BNX2FC_HBA_DBG(lport, "Port going down\n");
 815                 set_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state);
 816                 link_possible = 0;
 817                 break;
 818
 819         case NETDEV_CHANGE:
 820                 BNX2FC_HBA_DBG(lport, "NETDEV_CHANGE\n");
 821                 break;
 822
 823         default:
 824                 printk(KERN_ERR PFX "Unkonwn netevent %ld", event);
 825                 return;
 826         }
 827
 828         bnx2fc_link_speed_update(lport);
 829
 830         if (link_possible && !bnx2fc_link_ok(lport)) {
 831                 printk(KERN_ERR "indicate_netevent: call ctlr_link_up\n");
 832                 fcoe_ctlr_link_up(&hba->ctlr);
 833         } else {
 834                 printk(KERN_ERR "indicate_netevent: call ctlr_link_down\n");
 835                 if (fcoe_ctlr_link_down(&hba->ctlr)) {
 836                         clear_bit(ADAPTER_STATE_READY, &hba->adapter_state);
 837                         mutex_lock(&lport->lp_mutex);
 838                         list_for_each_entry(vport, &lport->vports, list)
 839                                 fc_host_port_type(vport->host) =
 840                                                         FC_PORTTYPE_UNKNOWN;
 841                         mutex_unlock(&lport->lp_mutex);
 842                         fc_host_port_type(lport->host) = FC_PORTTYPE_UNKNOWN;
 843                         per_cpu_ptr(lport->dev_stats,
 844                                     get_cpu())->LinkFailureCount++;
 845                         put_cpu();
 846                         fcoe_clean_pending_queue(lport);
 847
 848                         init_waitqueue_head(&hba->shutdown_wait);
 849                         BNX2FC_HBA_DBG(lport, "indicate_netevent "
 850                                              "num_ofld_sess = %d\n",
 851                                    hba->num_ofld_sess);
 852                         hba->wait_for_link_down = 1;
 853                         BNX2FC_HBA_DBG(lport, "waiting for uploads to "
 854                                              "compl proc = %s\n",
 855                                    current->comm);
 856                         wait_event_interruptible(hba->shutdown_wait,
 857                                                  (hba->num_ofld_sess == 0));
 858                         BNX2FC_HBA_DBG(lport, "wakeup - num_ofld_sess = %d\n",
 859                                 hba->num_ofld_sess);
 860                         hba->wait_for_link_down = 0;
 861
 862                         if (signal_pending(current))
 863                                 flush_signals(current);
 864                 }
 865         }
 866 }
 867
 868 static int bnx2fc_libfc_config(struct fc_lport *lport)
 869 {
 870
 871         /* Set the function pointers set by bnx2fc driver */
 872         memcpy(&lport->tt, &bnx2fc_libfc_fcn_templ,
 873                 sizeof(struct libfc_function_template));
 874         fc_elsct_init(lport);
 875         fc_exch_init(lport);
 876         fc_rport_init(lport);
 877         fc_disc_init(lport);
 878         return 0;
 879 }
 880
 881 static int bnx2fc_em_config(struct fc_lport *lport)
 882 {
 883         struct fcoe_port *port = lport_priv(lport);
 884         struct bnx2fc_hba *hba = port->priv;
 885
 886         if (!fc_exch_mgr_alloc(lport, FC_CLASS_3, FCOE_MIN_XID,
 887                                 FCOE_MAX_XID, NULL)) {
 888                 printk(KERN_ERR PFX "em_config:fc_exch_mgr_alloc failed\n");
 889                 return -ENOMEM;
 890         }
 891
 892         hba->cmd_mgr = bnx2fc_cmd_mgr_alloc(hba, BNX2FC_MIN_XID,
 893                                             BNX2FC_MAX_XID);
 894
 895         if (!hba->cmd_mgr) {
 896                 printk(KERN_ERR PFX "em_config:bnx2fc_cmd_mgr_alloc failed\n");
 897                 fc_exch_mgr_free(lport);
 898                 return -ENOMEM;
 899         }
 900         return 0;
 901 }
 902
 903 static int bnx2fc_lport_config(struct fc_lport *lport)
 904 {
 905         lport->link_up = 0;
 906         lport->qfull = 0;
 907         lport->max_retry_count = 3;
 908         lport->max_rport_retry_count = 3;
 909         lport->e_d_tov = 2 * 1000;
 910         lport->r_a_tov = 10 * 1000;
 911
 912         /* REVISIT: enable when supporting tape devices
 913         lport->service_params = (FCP_SPPF_INIT_FCN | FCP_SPPF_RD_XRDY_DIS |
 914                                 FCP_SPPF_RETRY | FCP_SPPF_CONF_COMPL);
 915         */
 916         lport->service_params = (FCP_SPPF_INIT_FCN | FCP_SPPF_RD_XRDY_DIS);
 917         lport->does_npiv = 1;
 918
 919         memset(&lport->rnid_gen, 0, sizeof(struct fc_els_rnid_gen));
 920         lport->rnid_gen.rnid_atype = BNX2FC_RNID_HBA;
 921
 922         /* alloc stats structure */
 923         if (fc_lport_init_stats(lport))
 924                 return -ENOMEM;
 925
 926         /* Finish fc_lport configuration */
 927         fc_lport_config(lport);
 928
 929         return 0;
 930 }
 931
 932 /**
 933  * bnx2fc_fip_recv - handle a received FIP frame.
 934  *
 935  * @skb: the received skb
 936  * @dev: associated &net_device
 937  * @ptype: the &packet_type structure which was used to register this handler.
 938  * @orig_dev: original receive &net_device, in case @ dev is a bond.
 939  *
 940  * Returns: 0 for success
 941  */
 942 static int bnx2fc_fip_recv(struct sk_buff *skb, struct net_device *dev,
 943                            struct packet_type *ptype,
 944                            struct net_device *orig_dev)
 945 {
 946         struct bnx2fc_hba *hba;
 947         hba = container_of(ptype, struct bnx2fc_hba, fip_packet_type);
 948         fcoe_ctlr_recv(&hba->ctlr, skb);
 949         return 0;
 950 }
 951
 952 /**
 953  * bnx2fc_update_src_mac - Update Ethernet MAC filters.
 954  *
 955  * @fip: FCoE controller.
 956  * @old: Unicast MAC address to delete if the MAC is non-zero.
 957  * @new: Unicast MAC address to add.
 958  *
 959  * Remove any previously-set unicast MAC filter.
 960  * Add secondary FCoE MAC address filter for our OUI.
 961  */
 962 static void bnx2fc_update_src_mac(struct fc_lport *lport, u8 *addr)
 963 {
 964         struct fcoe_port *port = lport_priv(lport);
 965
 966         memcpy(port->data_src_addr, addr, ETH_ALEN);
 967 }
 968
 969 /**
 970  * bnx2fc_get_src_mac - return the ethernet source address for an lport
 971  *
 972  * @lport: libfc port
 973  */
 974 static u8 *bnx2fc_get_src_mac(struct fc_lport *lport)
 975 {
 976         struct fcoe_port *port;
 977
 978         port = (struct fcoe_port *)lport_priv(lport);
 979         return port->data_src_addr;
 980 }
 981
 982 /**
 983  * bnx2fc_fip_send - send an Ethernet-encapsulated FIP frame.
 984  *
 985  * @fip: FCoE controller.
 986  * @skb: FIP Packet.
 987  */
 988 static void bnx2fc_fip_send(struct fcoe_ctlr *fip, struct sk_buff *skb)
 989 {
 990         skb->dev = bnx2fc_from_ctlr(fip)->netdev;
 991         dev_queue_xmit(skb);
 992 }
 993
 994 static int bnx2fc_vport_create(struct fc_vport *vport, bool disabled)
 995 {
 996         struct Scsi_Host *shost = vport_to_shost(vport);
 997         struct fc_lport *n_port = shost_priv(shost);
 998         struct fcoe_port *port = lport_priv(n_port);
 999         struct bnx2fc_hba *hba = port->priv;
1000         struct net_device *netdev = hba->netdev;
1001         struct fc_lport *vn_port;
1002
1003         if (!test_bit(BNX2FC_FW_INIT_DONE, &hba->init_done)) {
1004                 printk(KERN_ERR PFX "vn ports cannot be created on"
1005                         "this hba\n");
1006                 return -EIO;
1007         }
1008         mutex_lock(&bnx2fc_dev_lock);
1009         vn_port = bnx2fc_if_create(hba, &vport->dev, 1);
1010         mutex_unlock(&bnx2fc_dev_lock);
1011
1012         if (IS_ERR(vn_port)) {
1013                 printk(KERN_ERR PFX "bnx2fc_vport_create (%s) failed\n",
1014                         netdev->name);
1015                 return -EIO;
1016         }
1017
1018         if (disabled) {
1019                 fc_vport_set_state(vport, FC_VPORT_DISABLED);
1020         } else {
1021                 vn_port->boot_time = jiffies;
1022                 fc_lport_init(vn_port);
1023                 fc_fabric_login(vn_port);
1024                 fc_vport_setlink(vn_port);
1025         }
1026         return 0;
1027 }
1028
1029 static int bnx2fc_vport_destroy(struct fc_vport *vport)
1030 {
1031         struct Scsi_Host *shost = vport_to_shost(vport);
1032         struct fc_lport *n_port = shost_priv(shost);
1033         struct fc_lport *vn_port = vport->dd_data;
1034         struct fcoe_port *port = lport_priv(vn_port);
1035
1036         mutex_lock(&n_port->lp_mutex);
1037         list_del(&vn_port->list);
1038         mutex_unlock(&n_port->lp_mutex);
1039         queue_work(bnx2fc_wq, &port->destroy_work);
1040         return 0;
1041 }
1042
1043 static int bnx2fc_vport_disable(struct fc_vport *vport, bool disable)
1044 {
1045         struct fc_lport *lport = vport->dd_data;
1046
1047         if (disable) {
1048                 fc_vport_set_state(vport, FC_VPORT_DISABLED);
1049                 fc_fabric_logoff(lport);
1050         } else {
1051                 lport->boot_time = jiffies;
1052                 fc_fabric_login(lport);
1053                 fc_vport_setlink(lport);
1054         }
1055         return 0;
1056 }
1057
1058
1059 static int bnx2fc_netdev_setup(struct bnx2fc_hba *hba)
1060 {
1061         struct net_device *netdev = hba->netdev;
1062         struct net_device *physdev = hba->phys_dev;
1063         struct netdev_hw_addr *ha;
1064         int sel_san_mac = 0;
1065
1066         /* setup Source MAC Address */
1067         rcu_read_lock();
1068         for_each_dev_addr(physdev, ha) {
1069                 BNX2FC_MISC_DBG("net_config: ha->type = %d, fip_mac = ",
1070                                 ha->type);
1071                 printk(KERN_INFO "%2x:%2x:%2x:%2x:%2x:%2x\n", ha->addr[0],
1072                                 ha->addr[1], ha->addr[2], ha->addr[3],
1073                                 ha->addr[4], ha->addr[5]);
1074
1075                 if ((ha->type == NETDEV_HW_ADDR_T_SAN) &&
1076                     (is_valid_ether_addr(ha->addr))) {
1077                         memcpy(hba->ctlr.ctl_src_addr, ha->addr, ETH_ALEN);
1078                         sel_san_mac = 1;
1079                         BNX2FC_MISC_DBG("Found SAN MAC\n");
1080                 }
1081         }
1082         rcu_read_unlock();
1083
1084         if (!sel_san_mac)
1085                 return -ENODEV;
1086
1087         hba->fip_packet_type.func = bnx2fc_fip_recv;
1088         hba->fip_packet_type.type = htons(ETH_P_FIP);
1089         hba->fip_packet_type.dev = netdev;
1090         dev_add_pack(&hba->fip_packet_type);
1091
1092         hba->fcoe_packet_type.func = bnx2fc_rcv;
1093         hba->fcoe_packet_type.type = __constant_htons(ETH_P_FCOE);
1094         hba->fcoe_packet_type.dev = netdev;
1095         dev_add_pack(&hba->fcoe_packet_type);
1096
1097         return 0;
1098 }
1099
1100 static int bnx2fc_attach_transport(void)
1101 {
1102         bnx2fc_transport_template =
1103                 fc_attach_transport(&bnx2fc_transport_function);
1104
1105         if (bnx2fc_transport_template == NULL) {
1106                 printk(KERN_ERR PFX "Failed to attach FC transport\n");
1107                 return -ENODEV;
1108         }
1109
1110         bnx2fc_vport_xport_template =
1111                 fc_attach_transport(&bnx2fc_vport_xport_function);
1112         if (bnx2fc_vport_xport_template == NULL) {
1113                 printk(KERN_ERR PFX
1114                        "Failed to attach FC transport for vport\n");
1115                 fc_release_transport(bnx2fc_transport_template);
1116                 bnx2fc_transport_template = NULL;
1117                 return -ENODEV;
1118         }
1119         return 0;
1120 }
1121 static void bnx2fc_release_transport(void)
1122 {
1123         fc_release_transport(bnx2fc_transport_template);
1124         fc_release_transport(bnx2fc_vport_xport_template);
1125         bnx2fc_transport_template = NULL;
1126         bnx2fc_vport_xport_template = NULL;
1127 }
1128
1129 static void bnx2fc_interface_release(struct kref *kref)
1130 {
1131         struct bnx2fc_hba *hba;
1132         struct net_device *netdev;
1133         struct net_device *phys_dev;
1134
1135         hba = container_of(kref, struct bnx2fc_hba, kref);
1136         BNX2FC_MISC_DBG("Interface is being released\n");
1137
1138         netdev = hba->netdev;
1139         phys_dev = hba->phys_dev;
1140
1141         /* tear-down FIP controller */
1142         if (test_and_clear_bit(BNX2FC_CTLR_INIT_DONE, &hba->init_done))
1143                 fcoe_ctlr_destroy(&hba->ctlr);
1144
1145         /* Free the command manager */
1146         if (hba->cmd_mgr) {
1147                 bnx2fc_cmd_mgr_free(hba->cmd_mgr);
1148                 hba->cmd_mgr = NULL;
1149         }
1150         dev_put(netdev);
1151         module_put(THIS_MODULE);
1152 }
1153
1154 static inline void bnx2fc_interface_get(struct bnx2fc_hba *hba)
1155 {
1156         kref_get(&hba->kref);
1157 }
1158
1159 static inline void bnx2fc_interface_put(struct bnx2fc_hba *hba)
1160 {
1161         kref_put(&hba->kref, bnx2fc_interface_release);
1162 }
1163 static void bnx2fc_interface_destroy(struct bnx2fc_hba *hba)
1164 {
1165         bnx2fc_unbind_pcidev(hba);
1166         kfree(hba);
1167 }
1168
1169 /**
1170  * bnx2fc_interface_create - create a new fcoe instance
1171  *
1172  * @cnic:       pointer to cnic device
1173  *
1174  * Creates a new FCoE instance on the given device which include allocating
1175  *      hba structure, scsi_host and lport structures.
1176  */
1177 static struct bnx2fc_hba *bnx2fc_interface_create(struct cnic_dev *cnic)
1178 {
1179         struct bnx2fc_hba *hba;
1180         int rc;
1181
1182         hba = kzalloc(sizeof(*hba), GFP_KERNEL);
1183         if (!hba) {
1184                 printk(KERN_ERR PFX "Unable to allocate hba structure\n");
1185                 return NULL;
1186         }
1187         spin_lock_init(&hba->hba_lock);
1188         mutex_init(&hba->hba_mutex);
1189
1190         hba->cnic = cnic;
1191         rc = bnx2fc_bind_pcidev(hba);
1192         if (rc)
1193                 goto bind_err;
1194         hba->phys_dev = cnic->netdev;
1195         /* will get overwritten after we do vlan discovery */
1196         hba->netdev = hba->phys_dev;
1197
1198         init_waitqueue_head(&hba->shutdown_wait);
1199         init_waitqueue_head(&hba->destroy_wait);
1200
1201         return hba;
1202 bind_err:
1203         printk(KERN_ERR PFX "create_interface: bind error\n");
1204         kfree(hba);
1205         return NULL;
1206 }
1207
1208 static int bnx2fc_interface_setup(struct bnx2fc_hba *hba,
1209                                   enum fip_state fip_mode)
1210 {
1211         int rc = 0;
1212         struct net_device *netdev = hba->netdev;
1213         struct fcoe_ctlr *fip = &hba->ctlr;
1214
1215         dev_hold(netdev);
1216         kref_init(&hba->kref);
1217
1218         hba->flags = 0;
1219
1220         /* Initialize FIP */
1221         memset(fip, 0, sizeof(*fip));
1222         fcoe_ctlr_init(fip, fip_mode);
1223         hba->ctlr.send = bnx2fc_fip_send;
1224         hba->ctlr.update_mac = bnx2fc_update_src_mac;
1225         hba->ctlr.get_src_addr = bnx2fc_get_src_mac;
1226         set_bit(BNX2FC_CTLR_INIT_DONE, &hba->init_done);
1227
1228         rc = bnx2fc_netdev_setup(hba);
1229         if (rc)
1230                 goto setup_err;
1231
1232         hba->next_conn_id = 0;
1233
1234         memset(hba->tgt_ofld_list, 0, sizeof(hba->tgt_ofld_list));
1235         hba->num_ofld_sess = 0;
1236
1237         return 0;
1238
1239 setup_err:
1240         fcoe_ctlr_destroy(&hba->ctlr);
1241         dev_put(netdev);
1242         bnx2fc_interface_put(hba);
1243         return rc;
1244 }
1245
1246 /**
1247  * bnx2fc_if_create - Create FCoE instance on a given interface
1248  *
1249  * @hba:        FCoE interface to create a local port on
1250  * @parent:     Device pointer to be the parent in sysfs for the SCSI host
1251  * @npiv:       Indicates if the port is vport or not
1252  *
1253  * Creates a fc_lport instance and a Scsi_Host instance and configure them.
1254  *
1255  * Returns:     Allocated fc_lport or an error pointer
1256  */
1257 static struct fc_lport *bnx2fc_if_create(struct bnx2fc_hba *hba,
1258                                   struct device *parent, int npiv)
1259 {
1260         struct fc_lport         *lport, *n_port;
1261         struct fcoe_port        *port;
1262         struct Scsi_Host        *shost;
1263         struct fc_vport         *vport = dev_to_vport(parent);
1264         int                     rc = 0;
1265
1266         /* Allocate Scsi_Host structure */
1267         if (!npiv)
1268                 lport = libfc_host_alloc(&bnx2fc_shost_template, sizeof(*port));
1269         else
1270                 lport = libfc_vport_create(vport, sizeof(*port));
1271
1272         if (!lport) {
1273                 printk(KERN_ERR PFX "could not allocate scsi host structure\n");
1274                 return NULL;
1275         }
1276         shost = lport->host;
1277         port = lport_priv(lport);
1278         port->lport = lport;
1279         port->priv = hba;
1280         INIT_WORK(&port->destroy_work, bnx2fc_destroy_work);
1281
1282         /* Configure fcoe_port */
1283         rc = bnx2fc_lport_config(lport);
1284         if (rc)
1285                 goto lp_config_err;
1286
1287         if (npiv) {
1288                 printk(KERN_ERR PFX "Setting vport names, 0x%llX 0x%llX\n",
1289                         vport->node_name, vport->port_name);
1290                 fc_set_wwnn(lport, vport->node_name);
1291                 fc_set_wwpn(lport, vport->port_name);
1292         }
1293         /* Configure netdev and networking properties of the lport */
1294         rc = bnx2fc_net_config(lport);
1295         if (rc) {
1296                 printk(KERN_ERR PFX "Error on bnx2fc_net_config\n");
1297                 goto lp_config_err;
1298         }
1299
1300         rc = bnx2fc_shost_config(lport, parent);
1301         if (rc) {
1302                 printk(KERN_ERR PFX "Couldnt configure shost for %s\n",
1303                         hba->netdev->name);
1304                 goto lp_config_err;
1305         }
1306
1307         /* Initialize the libfc library */
1308         rc = bnx2fc_libfc_config(lport);
1309         if (rc) {
1310                 printk(KERN_ERR PFX "Couldnt configure libfc\n");
1311                 goto shost_err;
1312         }
1313         fc_host_port_type(lport->host) = FC_PORTTYPE_UNKNOWN;
1314
1315         /* Allocate exchange manager */
1316         if (!npiv)
1317                 rc = bnx2fc_em_config(lport);
1318         else {
1319                 shost = vport_to_shost(vport);
1320                 n_port = shost_priv(shost);
1321                 rc = fc_exch_mgr_list_clone(n_port, lport);
1322         }
1323
1324         if (rc) {
1325                 printk(KERN_ERR PFX "Error on bnx2fc_em_config\n");
1326                 goto shost_err;
1327         }
1328
1329         bnx2fc_interface_get(hba);
1330         return lport;
1331
1332 shost_err:
1333         scsi_remove_host(shost);
1334 lp_config_err:
1335         scsi_host_put(lport->host);
1336         return NULL;
1337 }
1338
1339 static void bnx2fc_netdev_cleanup(struct bnx2fc_hba *hba)
1340 {
1341         /* Dont listen for Ethernet packets anymore */
1342         __dev_remove_pack(&hba->fcoe_packet_type);
1343         __dev_remove_pack(&hba->fip_packet_type);
1344         synchronize_net();
1345 }
1346
1347 static void bnx2fc_if_destroy(struct fc_lport *lport)
1348 {
1349         struct fcoe_port *port = lport_priv(lport);
1350         struct bnx2fc_hba *hba = port->priv;
1351
1352         BNX2FC_HBA_DBG(hba->ctlr.lp, "ENTERED bnx2fc_if_destroy\n");
1353         /* Stop the transmit retry timer */
1354         del_timer_sync(&port->timer);
1355
1356         /* Free existing transmit skbs */
1357         fcoe_clean_pending_queue(lport);
1358
1359         /* Free queued packets for the receive thread */
1360         bnx2fc_clean_rx_queue(lport);
1361
1362         /* Detach from scsi-ml */
1363         fc_remove_host(lport->host);
1364         scsi_remove_host(lport->host);
1365
1366         /*
1367          * Note that only the physical lport will have the exchange manager.
1368          * for vports, this function is NOP
1369          */
1370         fc_exch_mgr_free(lport);
1371
1372         /* Free memory used by statistical counters */
1373         fc_lport_free_stats(lport);
1374
1375         /* Release Scsi_Host */
1376         scsi_host_put(lport->host);
1377
1378         bnx2fc_interface_put(hba);
1379 }
1380
1381 /**
1382  * bnx2fc_destroy - Destroy a bnx2fc FCoE interface
1383  *
1384  * @buffer: The name of the Ethernet interface to be destroyed
1385  * @kp:     The associated kernel parameter
1386  *
1387  * Called from sysfs.
1388  *
1389  * Returns: 0 for success
1390  */
1391 static int bnx2fc_destroy(struct net_device *netdev)
1392 {
1393         struct bnx2fc_hba *hba = NULL;
1394         struct net_device *phys_dev;
1395         int rc = 0;
1396
1397         rtnl_lock();
1398
1399         mutex_lock(&bnx2fc_dev_lock);
1400         /* obtain physical netdev */
1401         if (netdev->priv_flags & IFF_802_1Q_VLAN)
1402                 phys_dev = vlan_dev_real_dev(netdev);
1403         else {
1404                 printk(KERN_ERR PFX "Not a vlan device\n");
1405                 rc = -ENODEV;
1406                 goto netdev_err;
1407         }
1408
1409         hba = bnx2fc_hba_lookup(phys_dev);
1410         if (!hba || !hba->ctlr.lp) {
1411                 rc = -ENODEV;
1412                 printk(KERN_ERR PFX "bnx2fc_destroy: hba or lport not found\n");
1413                 goto netdev_err;
1414         }
1415
1416         if (!test_bit(BNX2FC_CREATE_DONE, &hba->init_done)) {
1417                 printk(KERN_ERR PFX "bnx2fc_destroy: Create not called\n");
1418                 goto netdev_err;
1419         }
1420
1421         bnx2fc_netdev_cleanup(hba);
1422
1423         bnx2fc_stop(hba);
1424
1425         bnx2fc_if_destroy(hba->ctlr.lp);
1426
1427         destroy_workqueue(hba->timer_work_queue);
1428
1429         if (test_bit(BNX2FC_FW_INIT_DONE, &hba->init_done))
1430                 bnx2fc_fw_destroy(hba);
1431
1432         clear_bit(BNX2FC_CREATE_DONE, &hba->init_done);
1433 netdev_err:
1434         mutex_unlock(&bnx2fc_dev_lock);
1435         rtnl_unlock();
1436         return rc;
1437 }
1438
1439 static void bnx2fc_destroy_work(struct work_struct *work)
1440 {
1441         struct fcoe_port *port;
1442         struct fc_lport *lport;
1443
1444         port = container_of(work, struct fcoe_port, destroy_work);
1445         lport = port->lport;
1446
1447         BNX2FC_HBA_DBG(lport, "Entered bnx2fc_destroy_work\n");
1448
1449         bnx2fc_port_shutdown(lport);
1450         rtnl_lock();
1451         mutex_lock(&bnx2fc_dev_lock);
1452         bnx2fc_if_destroy(lport);
1453         mutex_unlock(&bnx2fc_dev_lock);
1454         rtnl_unlock();
1455 }
1456
1457 static void bnx2fc_unbind_adapter_devices(struct bnx2fc_hba *hba)
1458 {
1459         bnx2fc_free_fw_resc(hba);
1460         bnx2fc_free_task_ctx(hba);
1461 }
1462
1463 /**
1464  * bnx2fc_bind_adapter_devices - binds bnx2fc adapter with the associated
1465  *                      pci structure
1466  *
1467  * @hba:                Adapter instance
1468  */
1469 static int bnx2fc_bind_adapter_devices(struct bnx2fc_hba *hba)
1470 {
1471         if (bnx2fc_setup_task_ctx(hba))
1472                 goto mem_err;
1473
1474         if (bnx2fc_setup_fw_resc(hba))
1475                 goto mem_err;
1476
1477         return 0;
1478 mem_err:
1479         bnx2fc_unbind_adapter_devices(hba);
1480         return -ENOMEM;
1481 }
1482
1483 static int bnx2fc_bind_pcidev(struct bnx2fc_hba *hba)
1484 {
1485         struct cnic_dev *cnic;
1486
1487         if (!hba->cnic) {
1488                 printk(KERN_ERR PFX "cnic is NULL\n");
1489                 return -ENODEV;
1490         }
1491         cnic = hba->cnic;
1492         hba->pcidev = cnic->pcidev;
1493         if (hba->pcidev)
1494                 pci_dev_get(hba->pcidev);
1495
1496         return 0;
1497 }
1498
1499 static void bnx2fc_unbind_pcidev(struct bnx2fc_hba *hba)
1500 {
1501         if (hba->pcidev)
1502                 pci_dev_put(hba->pcidev);
1503         hba->pcidev = NULL;
1504 }
1505
1506
1507
1508 /**
1509  * bnx2fc_ulp_start - cnic callback to initialize & start adapter instance
1510  *
1511  * @handle:     transport handle pointing to adapter struture
1512  *
1513  * This function maps adapter structure to pcidev structure and initiates
1514  *      firmware handshake to enable/initialize on-chip FCoE components.
1515  *      This bnx2fc - cnic interface api callback is used after following
1516  *      conditions are met -
1517  *      a) underlying network interface is up (marked by event NETDEV_UP
1518  *              from netdev
1519  *      b) bnx2fc adatper structure is registered.
1520  */
1521 static void bnx2fc_ulp_start(void *handle)
1522 {
1523         struct bnx2fc_hba *hba = handle;
1524         struct fc_lport *lport = hba->ctlr.lp;
1525
1526         BNX2FC_MISC_DBG("Entered %s\n", __func__);
1527         mutex_lock(&bnx2fc_dev_lock);
1528
1529         if (test_bit(BNX2FC_FW_INIT_DONE, &hba->init_done))
1530                 goto start_disc;
1531
1532         if (test_bit(BNX2FC_CREATE_DONE, &hba->init_done))
1533                 bnx2fc_fw_init(hba);
1534
1535 start_disc:
1536         mutex_unlock(&bnx2fc_dev_lock);
1537
1538         BNX2FC_MISC_DBG("bnx2fc started.\n");
1539
1540         /* Kick off Fabric discovery*/
1541         if (test_bit(BNX2FC_CREATE_DONE, &hba->init_done)) {
1542                 printk(KERN_ERR PFX "ulp_init: start discovery\n");
1543                 lport->tt.frame_send = bnx2fc_xmit;
1544                 bnx2fc_start_disc(hba);
1545         }
1546 }
1547
1548 static void bnx2fc_port_shutdown(struct fc_lport *lport)
1549 {
1550         BNX2FC_MISC_DBG("Entered %s\n", __func__);
1551         fc_fabric_logoff(lport);
1552         fc_lport_destroy(lport);
1553 }
1554
1555 static void bnx2fc_stop(struct bnx2fc_hba *hba)
1556 {
1557         struct fc_lport *lport;
1558         struct fc_lport *vport;
1559
1560         BNX2FC_MISC_DBG("ENTERED %s - init_done = %ld\n", __func__,
1561                    hba->init_done);
1562         if (test_bit(BNX2FC_FW_INIT_DONE, &hba->init_done) &&
1563             test_bit(BNX2FC_CREATE_DONE, &hba->init_done)) {
1564                 lport = hba->ctlr.lp;
1565                 bnx2fc_port_shutdown(lport);
1566                 BNX2FC_HBA_DBG(lport, "bnx2fc_stop: waiting for %d "
1567                                 "offloaded sessions\n",
1568                                 hba->num_ofld_sess);
1569                 wait_event_interruptible(hba->shutdown_wait,
1570                                          (hba->num_ofld_sess == 0));
1571                 mutex_lock(&lport->lp_mutex);
1572                 list_for_each_entry(vport, &lport->vports, list)
1573                         fc_host_port_type(vport->host) = FC_PORTTYPE_UNKNOWN;
1574                 mutex_unlock(&lport->lp_mutex);
1575                 fc_host_port_type(lport->host) = FC_PORTTYPE_UNKNOWN;
1576                 fcoe_ctlr_link_down(&hba->ctlr);
1577                 fcoe_clean_pending_queue(lport);
1578
1579                 mutex_lock(&hba->hba_mutex);
1580                 clear_bit(ADAPTER_STATE_UP, &hba->adapter_state);
1581                 clear_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state);
1582
1583                 clear_bit(ADAPTER_STATE_READY, &hba->adapter_state);
1584                 mutex_unlock(&hba->hba_mutex);
1585         }
1586 }
1587
1588 static int bnx2fc_fw_init(struct bnx2fc_hba *hba)
1589 {
1590 #define BNX2FC_INIT_POLL_TIME           (1000 / HZ)
1591         int rc = -1;
1592         int i = HZ;
1593
1594         rc = bnx2fc_bind_adapter_devices(hba);
1595         if (rc) {
1596                 printk(KERN_ALERT PFX
1597                         "bnx2fc_bind_adapter_devices failed - rc = %d\n", rc);
1598                 goto err_out;
1599         }
1600
1601         rc = bnx2fc_send_fw_fcoe_init_msg(hba);
1602         if (rc) {
1603                 printk(KERN_ALERT PFX
1604                         "bnx2fc_send_fw_fcoe_init_msg failed - rc = %d\n", rc);
1605                 goto err_unbind;
1606         }
1607
1608         /*
1609          * Wait until the adapter init message is complete, and adapter
1610          * state is UP.
1611          */
1612         while (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state) && i--)
1613                 msleep(BNX2FC_INIT_POLL_TIME);
1614
1615         if (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state)) {
1616                 printk(KERN_ERR PFX "bnx2fc_start: %s failed to initialize.  "
1617                                 "Ignoring...\n",
1618                                 hba->cnic->netdev->name);
1619                 rc = -1;
1620                 goto err_unbind;
1621         }
1622
1623
1624         /* Mark HBA to indicate that the FW INIT is done */
1625         set_bit(BNX2FC_FW_INIT_DONE, &hba->init_done);
1626         return 0;
1627
1628 err_unbind:
1629         bnx2fc_unbind_adapter_devices(hba);
1630 err_out:
1631         return rc;
1632 }
1633
1634 static void bnx2fc_fw_destroy(struct bnx2fc_hba *hba)
1635 {
1636         if (test_and_clear_bit(BNX2FC_FW_INIT_DONE, &hba->init_done)) {
1637                 if (bnx2fc_send_fw_fcoe_destroy_msg(hba) == 0) {
1638                         init_timer(&hba->destroy_timer);
1639                         hba->destroy_timer.expires = BNX2FC_FW_TIMEOUT +
1640                                                                 jiffies;
1641                         hba->destroy_timer.function = bnx2fc_destroy_timer;
1642                         hba->destroy_timer.data = (unsigned long)hba;
1643                         add_timer(&hba->destroy_timer);
1644                         wait_event_interruptible(hba->destroy_wait,
1645                                                  (hba->flags &
1646                                                   BNX2FC_FLAG_DESTROY_CMPL));
1647                         /* This should never happen */
1648                         if (signal_pending(current))
1649                                 flush_signals(current);
1650
1651                         del_timer_sync(&hba->destroy_timer);
1652                 }
1653                 bnx2fc_unbind_adapter_devices(hba);
1654         }
1655 }
1656
1657 /**
1658  * bnx2fc_ulp_stop - cnic callback to shutdown adapter instance
1659  *
1660  * @handle:     transport handle pointing to adapter structure
1661  *
1662  * Driver checks if adapter is already in shutdown mode, if not start
1663  *      the shutdown process.
1664  */
1665 static void bnx2fc_ulp_stop(void *handle)
1666 {
1667         struct bnx2fc_hba *hba = (struct bnx2fc_hba *)handle;
1668
1669         printk(KERN_ERR "ULP_STOP\n");
1670
1671         mutex_lock(&bnx2fc_dev_lock);
1672         bnx2fc_stop(hba);
1673         bnx2fc_fw_destroy(hba);
1674         mutex_unlock(&bnx2fc_dev_lock);
1675 }
1676
1677 static void bnx2fc_start_disc(struct bnx2fc_hba *hba)
1678 {
1679         struct fc_lport *lport;
1680         int wait_cnt = 0;
1681
1682         BNX2FC_MISC_DBG("Entered %s\n", __func__);
1683         /* Kick off FIP/FLOGI */
1684         if (!test_bit(BNX2FC_FW_INIT_DONE, &hba->init_done)) {
1685                 printk(KERN_ERR PFX "Init not done yet\n");
1686                 return;
1687         }
1688
1689         lport = hba->ctlr.lp;
1690         BNX2FC_HBA_DBG(lport, "calling fc_fabric_login\n");
1691
1692         if (!bnx2fc_link_ok(lport)) {
1693                 BNX2FC_HBA_DBG(lport, "ctlr_link_up\n");
1694                 fcoe_ctlr_link_up(&hba->ctlr);
1695                 fc_host_port_type(lport->host) = FC_PORTTYPE_NPORT;
1696                 set_bit(ADAPTER_STATE_READY, &hba->adapter_state);
1697         }
1698
1699         /* wait for the FCF to be selected before issuing FLOGI */
1700         while (!hba->ctlr.sel_fcf) {
1701                 msleep(250);
1702                 /* give up after 3 secs */
1703                 if (++wait_cnt > 12)
1704                         break;
1705         }
1706         fc_lport_init(lport);
1707         fc_fabric_login(lport);
1708 }
1709
1710
1711 /**
1712  * bnx2fc_ulp_init - Initialize an adapter instance
1713  *
1714  * @dev :       cnic device handle
1715  * Called from cnic_register_driver() context to initialize all
1716  *      enumerated cnic devices. This routine allocates adapter structure
1717  *      and other device specific resources.
1718  */
1719 static void bnx2fc_ulp_init(struct cnic_dev *dev)
1720 {
1721         struct bnx2fc_hba *hba;
1722         int rc = 0;
1723
1724         BNX2FC_MISC_DBG("Entered %s\n", __func__);
1725         /* bnx2fc works only when bnx2x is loaded */
1726         if (!test_bit(CNIC_F_BNX2X_CLASS, &dev->flags)) {
1727                 printk(KERN_ERR PFX "bnx2fc FCoE not supported on %s,"
1728                                     " flags: %lx\n",
1729                         dev->netdev->name, dev->flags);
1730                 return;
1731         }
1732
1733         /* Configure FCoE interface */
1734         hba = bnx2fc_interface_create(dev);
1735         if (!hba) {
1736                 printk(KERN_ERR PFX "hba initialization failed\n");
1737                 return;
1738         }
1739
1740         /* Add HBA to the adapter list */
1741         mutex_lock(&bnx2fc_dev_lock);
1742         list_add_tail(&hba->link, &adapter_list);
1743         adapter_count++;
1744         mutex_unlock(&bnx2fc_dev_lock);
1745
1746         clear_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic);
1747         rc = dev->register_device(dev, CNIC_ULP_FCOE,
1748                                                 (void *) hba);
1749         if (rc)
1750                 printk(KERN_ALERT PFX "register_device failed, rc = %d\n", rc);
1751         else
1752                 set_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic);
1753 }
1754
1755
1756 static int bnx2fc_disable(struct net_device *netdev)
1757 {
1758         struct bnx2fc_hba *hba;
1759         struct net_device *phys_dev;
1760         struct ethtool_drvinfo drvinfo;
1761         int rc = 0;
1762
1763         rtnl_lock();
1764
1765         mutex_lock(&bnx2fc_dev_lock);
1766
1767         /* obtain physical netdev */
1768         if (netdev->priv_flags & IFF_802_1Q_VLAN)
1769                 phys_dev = vlan_dev_real_dev(netdev);
1770         else {
1771                 printk(KERN_ERR PFX "Not a vlan device\n");
1772                 rc = -ENODEV;
1773                 goto nodev;
1774         }
1775
1776         /* verify if the physical device is a netxtreme2 device */
1777         if (phys_dev->ethtool_ops && phys_dev->ethtool_ops->get_drvinfo) {
1778                 memset(&drvinfo, 0, sizeof(drvinfo));
1779                 phys_dev->ethtool_ops->get_drvinfo(phys_dev, &drvinfo);
1780                 if (strcmp(drvinfo.driver, "bnx2x")) {
1781                         printk(KERN_ERR PFX "Not a netxtreme2 device\n");
1782                         rc = -ENODEV;
1783                         goto nodev;
1784                 }
1785         } else {
1786                 printk(KERN_ERR PFX "unable to obtain drv_info\n");
1787                 rc = -ENODEV;
1788                 goto nodev;
1789         }
1790
1791         printk(KERN_ERR PFX "phys_dev is netxtreme2 device\n");
1792
1793         /* obtain hba and initialize rest of the structure */
1794         hba = bnx2fc_hba_lookup(phys_dev);
1795         if (!hba || !hba->ctlr.lp) {
1796                 rc = -ENODEV;
1797                 printk(KERN_ERR PFX "bnx2fc_disable: hba or lport not found\n");
1798         } else {
1799                 fcoe_ctlr_link_down(&hba->ctlr);
1800                 fcoe_clean_pending_queue(hba->ctlr.lp);
1801         }
1802
1803 nodev:
1804         mutex_unlock(&bnx2fc_dev_lock);
1805         rtnl_unlock();
1806         return rc;
1807 }
1808
1809
1810 static int bnx2fc_enable(struct net_device *netdev)
1811 {
1812         struct bnx2fc_hba *hba;
1813         struct net_device *phys_dev;
1814         struct ethtool_drvinfo drvinfo;
1815         int rc = 0;
1816
1817         rtnl_lock();
1818
1819         BNX2FC_MISC_DBG("Entered %s\n", __func__);
1820         mutex_lock(&bnx2fc_dev_lock);
1821
1822         /* obtain physical netdev */
1823         if (netdev->priv_flags & IFF_802_1Q_VLAN)
1824                 phys_dev = vlan_dev_real_dev(netdev);
1825         else {
1826                 printk(KERN_ERR PFX "Not a vlan device\n");
1827                 rc = -ENODEV;
1828                 goto nodev;
1829         }
1830         /* verify if the physical device is a netxtreme2 device */
1831         if (phys_dev->ethtool_ops && phys_dev->ethtool_ops->get_drvinfo) {
1832                 memset(&drvinfo, 0, sizeof(drvinfo));
1833                 phys_dev->ethtool_ops->get_drvinfo(phys_dev, &drvinfo);
1834                 if (strcmp(drvinfo.driver, "bnx2x")) {
1835                         printk(KERN_ERR PFX "Not a netxtreme2 device\n");
1836                         rc = -ENODEV;
1837                         goto nodev;
1838                 }
1839         } else {
1840                 printk(KERN_ERR PFX "unable to obtain drv_info\n");
1841                 rc = -ENODEV;
1842                 goto nodev;
1843         }
1844
1845         /* obtain hba and initialize rest of the structure */
1846         hba = bnx2fc_hba_lookup(phys_dev);
1847         if (!hba || !hba->ctlr.lp) {
1848                 rc = -ENODEV;
1849                 printk(KERN_ERR PFX "bnx2fc_enable: hba or lport not found\n");
1850         } else if (!bnx2fc_link_ok(hba->ctlr.lp))
1851                 fcoe_ctlr_link_up(&hba->ctlr);
1852
1853 nodev:
1854         mutex_unlock(&bnx2fc_dev_lock);
1855         rtnl_unlock();
1856         return rc;
1857 }
1858
1859 /**
1860  * bnx2fc_create - Create bnx2fc FCoE interface
1861  *
1862  * @buffer: The name of Ethernet interface to create on
1863  * @kp:     The associated kernel param
1864  *
1865  * Called from sysfs.
1866  *
1867  * Returns: 0 for success
1868  */
1869 static int bnx2fc_create(struct net_device *netdev, enum fip_state fip_mode)
1870 {
1871         struct bnx2fc_hba *hba;
1872         struct net_device *phys_dev;
1873         struct fc_lport *lport;
1874         struct ethtool_drvinfo drvinfo;
1875         int rc = 0;
1876         int vlan_id;
1877
1878         BNX2FC_MISC_DBG("Entered bnx2fc_create\n");
1879         if (fip_mode != FIP_MODE_FABRIC) {
1880                 printk(KERN_ERR "fip mode not FABRIC\n");
1881                 return -EIO;
1882         }
1883
1884         rtnl_lock();
1885
1886         mutex_lock(&bnx2fc_dev_lock);
1887
1888         if (!try_module_get(THIS_MODULE)) {
1889                 rc = -EINVAL;
1890                 goto mod_err;
1891         }
1892
1893         /* obtain physical netdev */
1894         if (netdev->priv_flags & IFF_802_1Q_VLAN) {
1895                 phys_dev = vlan_dev_real_dev(netdev);
1896                 vlan_id = vlan_dev_vlan_id(netdev);
1897         } else {
1898                 printk(KERN_ERR PFX "Not a vlan device\n");
1899                 rc = -EINVAL;
1900                 goto netdev_err;
1901         }
1902         /* verify if the physical device is a netxtreme2 device */
1903         if (phys_dev->ethtool_ops && phys_dev->ethtool_ops->get_drvinfo) {
1904                 memset(&drvinfo, 0, sizeof(drvinfo));
1905                 phys_dev->ethtool_ops->get_drvinfo(phys_dev, &drvinfo);
1906                 if (strcmp(drvinfo.driver, "bnx2x")) {
1907                         printk(KERN_ERR PFX "Not a netxtreme2 device\n");
1908                         rc = -EINVAL;
1909                         goto netdev_err;
1910                 }
1911         } else {
1912                 printk(KERN_ERR PFX "unable to obtain drv_info\n");
1913                 rc = -EINVAL;
1914                 goto netdev_err;
1915         }
1916
1917         /* obtain hba and initialize rest of the structure */
1918         hba = bnx2fc_hba_lookup(phys_dev);
1919         if (!hba) {
1920                 rc = -ENODEV;
1921                 printk(KERN_ERR PFX "bnx2fc_create: hba not found\n");
1922                 goto netdev_err;
1923         }
1924
1925         if (!test_bit(BNX2FC_FW_INIT_DONE, &hba->init_done)) {
1926                 rc = bnx2fc_fw_init(hba);
1927                 if (rc)
1928                         goto netdev_err;
1929         }
1930
1931         if (test_bit(BNX2FC_CREATE_DONE, &hba->init_done)) {
1932                 rc = -EEXIST;
1933                 goto netdev_err;
1934         }
1935
1936         /* update netdev with vlan netdev */
1937         hba->netdev = netdev;
1938         hba->vlan_id = vlan_id;
1939         hba->vlan_enabled = 1;
1940
1941         rc = bnx2fc_interface_setup(hba, fip_mode);
1942         if (rc) {
1943                 printk(KERN_ERR PFX "bnx2fc_interface_setup failed\n");
1944                 goto ifput_err;
1945         }
1946
1947         hba->timer_work_queue =
1948                         create_singlethread_workqueue("bnx2fc_timer_wq");
1949         if (!hba->timer_work_queue) {
1950                 printk(KERN_ERR PFX "ulp_init could not create timer_wq\n");
1951                 rc = -EINVAL;
1952                 goto ifput_err;
1953         }
1954
1955         lport = bnx2fc_if_create(hba, &hba->pcidev->dev, 0);
1956         if (!lport) {
1957                 printk(KERN_ERR PFX "Failed to create interface (%s)\n",
1958                         netdev->name);
1959                 bnx2fc_netdev_cleanup(hba);
1960                 rc = -EINVAL;
1961                 goto if_create_err;
1962         }
1963
1964         lport->boot_time = jiffies;
1965
1966         /* Make this master N_port */
1967         hba->ctlr.lp = lport;
1968
1969         set_bit(BNX2FC_CREATE_DONE, &hba->init_done);
1970         printk(KERN_ERR PFX "create: START DISC\n");
1971         bnx2fc_start_disc(hba);
1972         /*
1973          * Release from kref_init in bnx2fc_interface_setup, on success
1974          * lport should be holding a reference taken in bnx2fc_if_create
1975          */
1976         bnx2fc_interface_put(hba);
1977         /* put netdev that was held while calling dev_get_by_name */
1978         mutex_unlock(&bnx2fc_dev_lock);
1979         rtnl_unlock();
1980         return 0;
1981
1982 if_create_err:
1983         destroy_workqueue(hba->timer_work_queue);
1984 ifput_err:
1985         bnx2fc_interface_put(hba);
1986 netdev_err:
1987         module_put(THIS_MODULE);
1988 mod_err:
1989         mutex_unlock(&bnx2fc_dev_lock);
1990         rtnl_unlock();
1991         return rc;
1992 }
1993
1994 /**
1995  * bnx2fc_find_hba_for_cnic - maps cnic instance to bnx2fc adapter instance
1996  *
1997  * @cnic:       Pointer to cnic device instance
1998  *
1999  **/
2000 static struct bnx2fc_hba *bnx2fc_find_hba_for_cnic(struct cnic_dev *cnic)
2001 {
2002         struct list_head *list;
2003         struct list_head *temp;
2004         struct bnx2fc_hba *hba;
2005
2006         /* Called with bnx2fc_dev_lock held */
2007         list_for_each_safe(list, temp, &adapter_list) {
2008                 hba = (struct bnx2fc_hba *)list;
2009                 if (hba->cnic == cnic)
2010                         return hba;
2011         }
2012         return NULL;
2013 }
2014
2015 static struct bnx2fc_hba *bnx2fc_hba_lookup(struct net_device *phys_dev)
2016 {
2017         struct list_head *list;
2018         struct list_head *temp;
2019         struct bnx2fc_hba *hba;
2020
2021         /* Called with bnx2fc_dev_lock held */
2022         list_for_each_safe(list, temp, &adapter_list) {
2023                 hba = (struct bnx2fc_hba *)list;
2024                 if (hba->phys_dev == phys_dev)
2025                         return hba;
2026         }
2027         printk(KERN_ERR PFX "hba_lookup: hba NULL\n");
2028         return NULL;
2029 }
2030
2031 /**
2032  * bnx2fc_ulp_exit - shuts down adapter instance and frees all resources
2033  *
2034  * @dev         cnic device handle
2035  */
2036 static void bnx2fc_ulp_exit(struct cnic_dev *dev)
2037 {
2038         struct bnx2fc_hba *hba;
2039
2040         BNX2FC_MISC_DBG("Entered bnx2fc_ulp_exit\n");
2041
2042         if (!test_bit(CNIC_F_BNX2X_CLASS, &dev->flags)) {
2043                 printk(KERN_ERR PFX "bnx2fc port check: %s, flags: %lx\n",
2044                         dev->netdev->name, dev->flags);
2045                 return;
2046         }
2047
2048         mutex_lock(&bnx2fc_dev_lock);
2049         hba = bnx2fc_find_hba_for_cnic(dev);
2050         if (!hba) {
2051                 printk(KERN_ERR PFX "bnx2fc_ulp_exit: hba not found, dev 0%p\n",
2052                        dev);
2053                 mutex_unlock(&bnx2fc_dev_lock);
2054                 return;
2055         }
2056
2057         list_del_init(&hba->link);
2058         adapter_count--;
2059
2060         if (test_bit(BNX2FC_CREATE_DONE, &hba->init_done)) {
2061                 /* destroy not called yet, move to quiesced list */
2062                 bnx2fc_netdev_cleanup(hba);
2063                 bnx2fc_if_destroy(hba->ctlr.lp);
2064         }
2065         mutex_unlock(&bnx2fc_dev_lock);
2066
2067         bnx2fc_ulp_stop(hba);
2068         /* unregister cnic device */
2069         if (test_and_clear_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic))
2070                 hba->cnic->unregister_device(hba->cnic, CNIC_ULP_FCOE);
2071         bnx2fc_interface_destroy(hba);
2072 }
2073
2074 /**
2075  * bnx2fc_fcoe_reset - Resets the fcoe
2076  *
2077  * @shost: shost the reset is from
2078  *
2079  * Returns: always 0
2080  */
2081 static int bnx2fc_fcoe_reset(struct Scsi_Host *shost)
2082 {
2083         struct fc_lport *lport = shost_priv(shost);
2084         fc_lport_reset(lport);
2085         return 0;
2086 }
2087
2088
2089 static bool bnx2fc_match(struct net_device *netdev)
2090 {
2091         mutex_lock(&bnx2fc_dev_lock);
2092         if (netdev->priv_flags & IFF_802_1Q_VLAN) {
2093                 struct net_device *phys_dev = vlan_dev_real_dev(netdev);
2094
2095                 if (bnx2fc_hba_lookup(phys_dev)) {
2096                         mutex_unlock(&bnx2fc_dev_lock);
2097                         return true;
2098                 }
2099         }
2100         mutex_unlock(&bnx2fc_dev_lock);
2101         return false;
2102 }
2103
2104
2105 static struct fcoe_transport bnx2fc_transport = {
2106         .name = {"bnx2fc"},
2107         .attached = false,
2108         .list = LIST_HEAD_INIT(bnx2fc_transport.list),
2109         .match = bnx2fc_match,
2110         .create = bnx2fc_create,
2111         .destroy = bnx2fc_destroy,
2112         .enable = bnx2fc_enable,
2113         .disable = bnx2fc_disable,
2114 };
2115
2116 /**
2117  * bnx2fc_percpu_thread_create - Create a receive thread for an
2118  *                               online CPU
2119  *
2120  * @cpu: cpu index for the online cpu
2121  */
2122 static void bnx2fc_percpu_thread_create(unsigned int cpu)
2123 {
2124         struct bnx2fc_percpu_s *p;
2125         struct task_struct *thread;
2126
2127         p = &per_cpu(bnx2fc_percpu, cpu);
2128
2129         thread = kthread_create(bnx2fc_percpu_io_thread,
2130                                 (void *)p,
2131                                 "bnx2fc_thread/%d", cpu);
2132         /* bind thread to the cpu */
2133         if (likely(!IS_ERR(p->iothread))) {
2134                 kthread_bind(thread, cpu);
2135                 p->iothread = thread;
2136                 wake_up_process(thread);
2137         }
2138 }
2139
2140 static void bnx2fc_percpu_thread_destroy(unsigned int cpu)
2141 {
2142         struct bnx2fc_percpu_s *p;
2143         struct task_struct *thread;
2144         struct bnx2fc_work *work, *tmp;
2145         LIST_HEAD(work_list);
2146
2147         BNX2FC_MISC_DBG("destroying io thread for CPU %d\n", cpu);
2148
2149         /* Prevent any new work from being queued for this CPU */
2150         p = &per_cpu(bnx2fc_percpu, cpu);
2151         spin_lock_bh(&p->fp_work_lock);
2152         thread = p->iothread;
2153         p->iothread = NULL;
2154
2155
2156         /* Free all work in the list */
2157         list_for_each_entry_safe(work, tmp, &work_list, list) {
2158                 list_del_init(&work->list);
2159                 bnx2fc_process_cq_compl(work->tgt, work->wqe);
2160                 kfree(work);
2161         }
2162
2163         spin_unlock_bh(&p->fp_work_lock);
2164
2165         if (thread)
2166                 kthread_stop(thread);
2167 }
2168
2169 /**
2170  * bnx2fc_cpu_callback - Handler for CPU hotplug events
2171  *
2172  * @nfb:    The callback data block
2173  * @action: The event triggering the callback
2174  * @hcpu:   The index of the CPU that the event is for
2175  *
2176  * This creates or destroys per-CPU data for fcoe
2177  *
2178  * Returns NOTIFY_OK always.
2179  */
2180 static int bnx2fc_cpu_callback(struct notifier_block *nfb,
2181                              unsigned long action, void *hcpu)
2182 {
2183         unsigned cpu = (unsigned long)hcpu;
2184
2185         switch (action) {
2186         case CPU_ONLINE:
2187         case CPU_ONLINE_FROZEN:
2188                 printk(PFX "CPU %x online: Create Rx thread\n", cpu);
2189                 bnx2fc_percpu_thread_create(cpu);
2190                 break;
2191         case CPU_DEAD:
2192         case CPU_DEAD_FROZEN:
2193                 printk(PFX "CPU %x offline: Remove Rx thread\n", cpu);
2194                 bnx2fc_percpu_thread_destroy(cpu);
2195                 break;
2196         default:
2197                 break;
2198         }
2199         return NOTIFY_OK;
2200 }
2201
2202 /**
2203  * bnx2fc_mod_init - module init entry point
2204  *
2205  * Initialize driver wide global data structures, and register
2206  * with cnic module
2207  **/
2208 static int __init bnx2fc_mod_init(void)
2209 {
2210         struct fcoe_percpu_s *bg;
2211         struct task_struct *l2_thread;
2212         int rc = 0;
2213         unsigned int cpu = 0;
2214         struct bnx2fc_percpu_s *p;
2215
2216         printk(KERN_INFO PFX "%s", version);
2217
2218         /* register as a fcoe transport */
2219         rc = fcoe_transport_attach(&bnx2fc_transport);
2220         if (rc) {
2221                 printk(KERN_ERR "failed to register an fcoe transport, check "
2222                         "if libfcoe is loaded\n");
2223                 goto out;
2224         }
2225
2226         INIT_LIST_HEAD(&adapter_list);
2227         mutex_init(&bnx2fc_dev_lock);
2228         adapter_count = 0;
2229
2230         /* Attach FC transport template */
2231         rc = bnx2fc_attach_transport();
2232         if (rc)
2233                 goto detach_ft;
2234
2235         bnx2fc_wq = alloc_workqueue("bnx2fc", 0, 0);
2236         if (!bnx2fc_wq) {
2237                 rc = -ENOMEM;
2238                 goto release_bt;
2239         }
2240
2241         bg = &bnx2fc_global;
2242         skb_queue_head_init(&bg->fcoe_rx_list);
2243         l2_thread = kthread_create(bnx2fc_l2_rcv_thread,
2244                                    (void *)bg,
2245                                    "bnx2fc_l2_thread");
2246         if (IS_ERR(l2_thread)) {
2247                 rc = PTR_ERR(l2_thread);
2248                 goto free_wq;
2249         }
2250         wake_up_process(l2_thread);
2251         spin_lock_bh(&bg->fcoe_rx_list.lock);
2252         bg->thread = l2_thread;
2253         spin_unlock_bh(&bg->fcoe_rx_list.lock);
2254
2255         for_each_possible_cpu(cpu) {
2256                 p = &per_cpu(bnx2fc_percpu, cpu);
2257                 INIT_LIST_HEAD(&p->work_list);
2258                 spin_lock_init(&p->fp_work_lock);
2259         }
2260
2261         for_each_online_cpu(cpu) {
2262                 bnx2fc_percpu_thread_create(cpu);
2263         }
2264
2265         /* Initialize per CPU interrupt thread */
2266         register_hotcpu_notifier(&bnx2fc_cpu_notifier);
2267
2268         cnic_register_driver(CNIC_ULP_FCOE, &bnx2fc_cnic_cb);
2269
2270         return 0;
2271
2272 free_wq:
2273         destroy_workqueue(bnx2fc_wq);
2274 release_bt:
2275         bnx2fc_release_transport();
2276 detach_ft:
2277         fcoe_transport_detach(&bnx2fc_transport);
2278 out:
2279         return rc;
2280 }
2281
2282 static void __exit bnx2fc_mod_exit(void)
2283 {
2284         LIST_HEAD(to_be_deleted);
2285         struct bnx2fc_hba *hba, *next;
2286         struct fcoe_percpu_s *bg;
2287         struct task_struct *l2_thread;
2288         struct sk_buff *skb;
2289         unsigned int cpu = 0;
2290
2291         /*
2292          * NOTE: Since cnic calls register_driver routine rtnl_lock,
2293          * it will have higher precedence than bnx2fc_dev_lock.
2294          * unregister_device() cannot be called with bnx2fc_dev_lock
2295          * held.
2296          */
2297         mutex_lock(&bnx2fc_dev_lock);
2298         list_splice(&adapter_list, &to_be_deleted);
2299         INIT_LIST_HEAD(&adapter_list);
2300         adapter_count = 0;
2301         mutex_unlock(&bnx2fc_dev_lock);
2302
2303         /* Unregister with cnic */
2304         list_for_each_entry_safe(hba, next, &to_be_deleted, link) {
2305                 list_del_init(&hba->link);
2306                 printk(KERN_ERR PFX "MOD_EXIT:destroy hba = 0x%p, kref = %d\n",
2307                         hba, atomic_read(&hba->kref.refcount));
2308                 bnx2fc_ulp_stop(hba);
2309                 /* unregister cnic device */
2310                 if (test_and_clear_bit(BNX2FC_CNIC_REGISTERED,
2311                                        &hba->reg_with_cnic))
2312                         hba->cnic->unregister_device(hba->cnic, CNIC_ULP_FCOE);
2313                 bnx2fc_interface_destroy(hba);
2314         }
2315         cnic_unregister_driver(CNIC_ULP_FCOE);
2316
2317         /* Destroy global thread */
2318         bg = &bnx2fc_global;
2319         spin_lock_bh(&bg->fcoe_rx_list.lock);
2320         l2_thread = bg->thread;
2321         bg->thread = NULL;
2322         while ((skb = __skb_dequeue(&bg->fcoe_rx_list)) != NULL)
2323                 kfree_skb(skb);
2324
2325         spin_unlock_bh(&bg->fcoe_rx_list.lock);
2326
2327         if (l2_thread)
2328                 kthread_stop(l2_thread);
2329
2330         unregister_hotcpu_notifier(&bnx2fc_cpu_notifier);
2331
2332         /* Destroy per cpu threads */
2333         for_each_online_cpu(cpu) {
2334                 bnx2fc_percpu_thread_destroy(cpu);
2335         }
2336
2337         destroy_workqueue(bnx2fc_wq);
2338         /*
2339          * detach from scsi transport
2340          * must happen after all destroys are done
2341          */
2342         bnx2fc_release_transport();
2343
2344         /* detach from fcoe transport */
2345         fcoe_transport_detach(&bnx2fc_transport);
2346 }
2347
2348 module_init(bnx2fc_mod_init);
2349 module_exit(bnx2fc_mod_exit);
2350
2351 static struct fc_function_template bnx2fc_transport_function = {
2352         .show_host_node_name = 1,
2353         .show_host_port_name = 1,
2354         .show_host_supported_classes = 1,
2355         .show_host_supported_fc4s = 1,
2356         .show_host_active_fc4s = 1,
2357         .show_host_maxframe_size = 1,
2358
2359         .show_host_port_id = 1,
2360         .show_host_supported_speeds = 1,
2361         .get_host_speed = fc_get_host_speed,
2362         .show_host_speed = 1,
2363         .show_host_port_type = 1,
2364         .get_host_port_state = fc_get_host_port_state,
2365         .show_host_port_state = 1,
2366         .show_host_symbolic_name = 1,
2367
2368         .dd_fcrport_size = (sizeof(struct fc_rport_libfc_priv) +
2369                                 sizeof(struct bnx2fc_rport)),
2370         .show_rport_maxframe_size = 1,
2371         .show_rport_supported_classes = 1,
2372
2373         .show_host_fabric_name = 1,
2374         .show_starget_node_name = 1,
2375         .show_starget_port_name = 1,
2376         .show_starget_port_id = 1,
2377         .set_rport_dev_loss_tmo = fc_set_rport_loss_tmo,
2378         .show_rport_dev_loss_tmo = 1,
2379         .get_fc_host_stats = bnx2fc_get_host_stats,
2380
2381         .issue_fc_host_lip = bnx2fc_fcoe_reset,
2382
2383         .terminate_rport_io = fc_rport_terminate_io,
2384
2385         .vport_create = bnx2fc_vport_create,
2386         .vport_delete = bnx2fc_vport_destroy,
2387         .vport_disable = bnx2fc_vport_disable,
2388 };
2389
2390 static struct fc_function_template bnx2fc_vport_xport_function = {
2391         .show_host_node_name = 1,
2392         .show_host_port_name = 1,
2393         .show_host_supported_classes = 1,
2394         .show_host_supported_fc4s = 1,
2395         .show_host_active_fc4s = 1,
2396         .show_host_maxframe_size = 1,
2397
2398         .show_host_port_id = 1,
2399         .show_host_supported_speeds = 1,
2400         .get_host_speed = fc_get_host_speed,
2401         .show_host_speed = 1,
2402         .show_host_port_type = 1,
2403         .get_host_port_state = fc_get_host_port_state,
2404         .show_host_port_state = 1,
2405         .show_host_symbolic_name = 1,
2406
2407         .dd_fcrport_size = (sizeof(struct fc_rport_libfc_priv) +
2408                                 sizeof(struct bnx2fc_rport)),
2409         .show_rport_maxframe_size = 1,
2410         .show_rport_supported_classes = 1,
2411
2412         .show_host_fabric_name = 1,
2413         .show_starget_node_name = 1,
2414         .show_starget_port_name = 1,
2415         .show_starget_port_id = 1,
2416         .set_rport_dev_loss_tmo = fc_set_rport_loss_tmo,
2417         .show_rport_dev_loss_tmo = 1,
2418         .get_fc_host_stats = fc_get_host_stats,
2419         .issue_fc_host_lip = bnx2fc_fcoe_reset,
2420         .terminate_rport_io = fc_rport_terminate_io,
2421 };
2422
2423 /**
2424  * scsi_host_template structure used while registering with SCSI-ml
2425  */
2426 static struct scsi_host_template bnx2fc_shost_template = {
2427         .module                 = THIS_MODULE,
2428         .name                   = "Broadcom Offload FCoE Initiator",
2429         .queuecommand           = bnx2fc_queuecommand,
2430         .eh_abort_handler       = bnx2fc_eh_abort,        /* abts */
2431         .eh_device_reset_handler = bnx2fc_eh_device_reset, /* lun reset */
2432         .eh_target_reset_handler = bnx2fc_eh_target_reset, /* tgt reset */
2433         .eh_host_reset_handler  = fc_eh_host_reset,
2434         .slave_alloc            = fc_slave_alloc,
2435         .change_queue_depth     = fc_change_queue_depth,
2436         .change_queue_type      = fc_change_queue_type,
2437         .this_id                = -1,
2438         .cmd_per_lun            = 3,
2439         .can_queue              = BNX2FC_CAN_QUEUE,
2440         .use_clustering         = ENABLE_CLUSTERING,
2441         .sg_tablesize           = BNX2FC_MAX_BDS_PER_CMD,
2442         .max_sectors            = 512,
2443 };
2444
2445 static struct libfc_function_template bnx2fc_libfc_fcn_templ = {
2446         .frame_send             = bnx2fc_xmit,
2447         .elsct_send             = bnx2fc_elsct_send,
2448         .fcp_abort_io           = bnx2fc_abort_io,
2449         .fcp_cleanup            = bnx2fc_cleanup,
2450         .rport_event_callback   = bnx2fc_rport_event_handler,
2451 };
2452
2453 /**
2454  * bnx2fc_cnic_cb - global template of bnx2fc - cnic driver interface
2455  *                      structure carrying callback function pointers
2456  */
2457 static struct cnic_ulp_ops bnx2fc_cnic_cb = {
2458         .owner                  = THIS_MODULE,
2459         .cnic_init              = bnx2fc_ulp_init,
2460         .cnic_exit              = bnx2fc_ulp_exit,
2461         .cnic_start             = bnx2fc_ulp_start,
2462         .cnic_stop              = bnx2fc_ulp_stop,
2463         .indicate_kcqes         = bnx2fc_indicate_kcqe,
2464         .indicate_netevent      = bnx2fc_indicate_netevent,
2465 };