Pileus Git - ~andy/linux/blob - 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      "Jun 10, 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_stat2.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  * @vlan_id:    vlan id - associated vlan id with this event
 771  *
 772  * Handles NETDEV_UP, NETDEV_DOWN, NETDEV_GOING_DOWN,NETDEV_CHANGE and
 773  * NETDEV_CHANGE_MTU events
 774  */
 775 static void bnx2fc_indicate_netevent(void *context, unsigned long event,
 776                                      u16 vlan_id)
 777 {
 778         struct bnx2fc_hba *hba = (struct bnx2fc_hba *)context;
 779         struct fc_lport *lport = hba->ctlr.lp;
 780         struct fc_lport *vport;
 781         u32 link_possible = 1;
 782
 783         /* Ignore vlans for now */
 784         if (vlan_id != 0)
 785                 return;
 786
 787         if (!test_bit(BNX2FC_CREATE_DONE, &hba->init_done)) {
 788                 BNX2FC_MISC_DBG("driver not ready. event=%s %ld\n",
 789                            hba->netdev->name, event);
 790                 return;
 791         }
 792
 793         /*
 794          * ASSUMPTION:
 795          * indicate_netevent cannot be called from cnic unless bnx2fc
 796          * does register_device
 797          */
 798         BUG_ON(!lport);
 799
 800         BNX2FC_HBA_DBG(lport, "enter netevent handler - event=%s %ld\n",
 801                                 hba->netdev->name, event);
 802
 803         switch (event) {
 804         case NETDEV_UP:
 805                 BNX2FC_HBA_DBG(lport, "Port up, adapter_state = %ld\n",
 806                         hba->adapter_state);
 807                 if (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state))
 808                         printk(KERN_ERR "indicate_netevent: "\
 809                                         "adapter is not UP!!\n");
 810                 break;
 811
 812         case NETDEV_DOWN:
 813                 BNX2FC_HBA_DBG(lport, "Port down\n");
 814                 clear_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state);
 815                 clear_bit(ADAPTER_STATE_UP, &hba->adapter_state);
 816                 link_possible = 0;
 817                 break;
 818
 819         case NETDEV_GOING_DOWN:
 820                 BNX2FC_HBA_DBG(lport, "Port going down\n");
 821                 set_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state);
 822                 link_possible = 0;
 823                 break;
 824
 825         case NETDEV_CHANGE:
 826                 BNX2FC_HBA_DBG(lport, "NETDEV_CHANGE\n");
 827                 break;
 828
 829         default:
 830                 printk(KERN_ERR PFX "Unkonwn netevent %ld", event);
 831                 return;
 832         }
 833
 834         bnx2fc_link_speed_update(lport);
 835
 836         if (link_possible && !bnx2fc_link_ok(lport)) {
 837                 printk(KERN_ERR "indicate_netevent: call ctlr_link_up\n");
 838                 fcoe_ctlr_link_up(&hba->ctlr);
 839         } else {
 840                 printk(KERN_ERR "indicate_netevent: call ctlr_link_down\n");
 841                 if (fcoe_ctlr_link_down(&hba->ctlr)) {
 842                         clear_bit(ADAPTER_STATE_READY, &hba->adapter_state);
 843                         mutex_lock(&lport->lp_mutex);
 844                         list_for_each_entry(vport, &lport->vports, list)
 845                                 fc_host_port_type(vport->host) =
 846                                                         FC_PORTTYPE_UNKNOWN;
 847                         mutex_unlock(&lport->lp_mutex);
 848                         fc_host_port_type(lport->host) = FC_PORTTYPE_UNKNOWN;
 849                         per_cpu_ptr(lport->dev_stats,
 850                                     get_cpu())->LinkFailureCount++;
 851                         put_cpu();
 852                         fcoe_clean_pending_queue(lport);
 853
 854                         init_waitqueue_head(&hba->shutdown_wait);
 855                         BNX2FC_HBA_DBG(lport, "indicate_netevent "
 856                                              "num_ofld_sess = %d\n",
 857                                    hba->num_ofld_sess);
 858                         hba->wait_for_link_down = 1;
 859                         BNX2FC_HBA_DBG(lport, "waiting for uploads to "
 860                                              "compl proc = %s\n",
 861                                    current->comm);
 862                         wait_event_interruptible(hba->shutdown_wait,
 863                                                  (hba->num_ofld_sess == 0));
 864                         BNX2FC_HBA_DBG(lport, "wakeup - num_ofld_sess = %d\n",
 865                                 hba->num_ofld_sess);
 866                         hba->wait_for_link_down = 0;
 867
 868                         if (signal_pending(current))
 869                                 flush_signals(current);
 870                 }
 871         }
 872 }
 873
 874 static int bnx2fc_libfc_config(struct fc_lport *lport)
 875 {
 876
 877         /* Set the function pointers set by bnx2fc driver */
 878         memcpy(&lport->tt, &bnx2fc_libfc_fcn_templ,
 879                 sizeof(struct libfc_function_template));
 880         fc_elsct_init(lport);
 881         fc_exch_init(lport);
 882         fc_rport_init(lport);
 883         fc_disc_init(lport);
 884         return 0;
 885 }
 886
 887 static int bnx2fc_em_config(struct fc_lport *lport)
 888 {
 889         struct fcoe_port *port = lport_priv(lport);
 890         struct bnx2fc_hba *hba = port->priv;
 891
 892         if (!fc_exch_mgr_alloc(lport, FC_CLASS_3, FCOE_MIN_XID,
 893                                 FCOE_MAX_XID, NULL)) {
 894                 printk(KERN_ERR PFX "em_config:fc_exch_mgr_alloc failed\n");
 895                 return -ENOMEM;
 896         }
 897
 898         hba->cmd_mgr = bnx2fc_cmd_mgr_alloc(hba, BNX2FC_MIN_XID,
 899                                             BNX2FC_MAX_XID);
 900
 901         if (!hba->cmd_mgr) {
 902                 printk(KERN_ERR PFX "em_config:bnx2fc_cmd_mgr_alloc failed\n");
 903                 fc_exch_mgr_free(lport);
 904                 return -ENOMEM;
 905         }
 906         return 0;
 907 }
 908
 909 static int bnx2fc_lport_config(struct fc_lport *lport)
 910 {
 911         lport->link_up = 0;
 912         lport->qfull = 0;
 913         lport->max_retry_count = 3;
 914         lport->max_rport_retry_count = 3;
 915         lport->e_d_tov = 2 * 1000;
 916         lport->r_a_tov = 10 * 1000;
 917
 918         /* REVISIT: enable when supporting tape devices
 919         lport->service_params = (FCP_SPPF_INIT_FCN | FCP_SPPF_RD_XRDY_DIS |
 920                                 FCP_SPPF_RETRY | FCP_SPPF_CONF_COMPL);
 921         */
 922         lport->service_params = (FCP_SPPF_INIT_FCN | FCP_SPPF_RD_XRDY_DIS);
 923         lport->does_npiv = 1;
 924
 925         memset(&lport->rnid_gen, 0, sizeof(struct fc_els_rnid_gen));
 926         lport->rnid_gen.rnid_atype = BNX2FC_RNID_HBA;
 927
 928         /* alloc stats structure */
 929         if (fc_lport_init_stats(lport))
 930                 return -ENOMEM;
 931
 932         /* Finish fc_lport configuration */
 933         fc_lport_config(lport);
 934
 935         return 0;
 936 }
 937
 938 /**
 939  * bnx2fc_fip_recv - handle a received FIP frame.
 940  *
 941  * @skb: the received skb
 942  * @dev: associated &net_device
 943  * @ptype: the &packet_type structure which was used to register this handler.
 944  * @orig_dev: original receive &net_device, in case @ dev is a bond.
 945  *
 946  * Returns: 0 for success
 947  */
 948 static int bnx2fc_fip_recv(struct sk_buff *skb, struct net_device *dev,
 949                            struct packet_type *ptype,
 950                            struct net_device *orig_dev)
 951 {
 952         struct bnx2fc_hba *hba;
 953         hba = container_of(ptype, struct bnx2fc_hba, fip_packet_type);
 954         fcoe_ctlr_recv(&hba->ctlr, skb);
 955         return 0;
 956 }
 957
 958 /**
 959  * bnx2fc_update_src_mac - Update Ethernet MAC filters.
 960  *
 961  * @fip: FCoE controller.
 962  * @old: Unicast MAC address to delete if the MAC is non-zero.
 963  * @new: Unicast MAC address to add.
 964  *
 965  * Remove any previously-set unicast MAC filter.
 966  * Add secondary FCoE MAC address filter for our OUI.
 967  */
 968 static void bnx2fc_update_src_mac(struct fc_lport *lport, u8 *addr)
 969 {
 970         struct fcoe_port *port = lport_priv(lport);
 971
 972         memcpy(port->data_src_addr, addr, ETH_ALEN);
 973 }
 974
 975 /**
 976  * bnx2fc_get_src_mac - return the ethernet source address for an lport
 977  *
 978  * @lport: libfc port
 979  */
 980 static u8 *bnx2fc_get_src_mac(struct fc_lport *lport)
 981 {
 982         struct fcoe_port *port;
 983
 984         port = (struct fcoe_port *)lport_priv(lport);
 985         return port->data_src_addr;
 986 }
 987
 988 /**
 989  * bnx2fc_fip_send - send an Ethernet-encapsulated FIP frame.
 990  *
 991  * @fip: FCoE controller.
 992  * @skb: FIP Packet.
 993  */
 994 static void bnx2fc_fip_send(struct fcoe_ctlr *fip, struct sk_buff *skb)
 995 {
 996         skb->dev = bnx2fc_from_ctlr(fip)->netdev;
 997         dev_queue_xmit(skb);
 998 }
 999
1000 static int bnx2fc_vport_create(struct fc_vport *vport, bool disabled)
1001 {
1002         struct Scsi_Host *shost = vport_to_shost(vport);
1003         struct fc_lport *n_port = shost_priv(shost);
1004         struct fcoe_port *port = lport_priv(n_port);
1005         struct bnx2fc_hba *hba = port->priv;
1006         struct net_device *netdev = hba->netdev;
1007         struct fc_lport *vn_port;
1008
1009         if (!test_bit(BNX2FC_FW_INIT_DONE, &hba->init_done)) {
1010                 printk(KERN_ERR PFX "vn ports cannot be created on"
1011                         "this hba\n");
1012                 return -EIO;
1013         }
1014         mutex_lock(&bnx2fc_dev_lock);
1015         vn_port = bnx2fc_if_create(hba, &vport->dev, 1);
1016         mutex_unlock(&bnx2fc_dev_lock);
1017
1018         if (IS_ERR(vn_port)) {
1019                 printk(KERN_ERR PFX "bnx2fc_vport_create (%s) failed\n",
1020                         netdev->name);
1021                 return -EIO;
1022         }
1023
1024         if (disabled) {
1025                 fc_vport_set_state(vport, FC_VPORT_DISABLED);
1026         } else {
1027                 vn_port->boot_time = jiffies;
1028                 fc_lport_init(vn_port);
1029                 fc_fabric_login(vn_port);
1030                 fc_vport_setlink(vn_port);
1031         }
1032         return 0;
1033 }
1034
1035 static int bnx2fc_vport_destroy(struct fc_vport *vport)
1036 {
1037         struct Scsi_Host *shost = vport_to_shost(vport);
1038         struct fc_lport *n_port = shost_priv(shost);
1039         struct fc_lport *vn_port = vport->dd_data;
1040         struct fcoe_port *port = lport_priv(vn_port);
1041
1042         mutex_lock(&n_port->lp_mutex);
1043         list_del(&vn_port->list);
1044         mutex_unlock(&n_port->lp_mutex);
1045         queue_work(bnx2fc_wq, &port->destroy_work);
1046         return 0;
1047 }
1048
1049 static int bnx2fc_vport_disable(struct fc_vport *vport, bool disable)
1050 {
1051         struct fc_lport *lport = vport->dd_data;
1052
1053         if (disable) {
1054                 fc_vport_set_state(vport, FC_VPORT_DISABLED);
1055                 fc_fabric_logoff(lport);
1056         } else {
1057                 lport->boot_time = jiffies;
1058                 fc_fabric_login(lport);
1059                 fc_vport_setlink(lport);
1060         }
1061         return 0;
1062 }
1063
1064
1065 static int bnx2fc_netdev_setup(struct bnx2fc_hba *hba)
1066 {
1067         struct net_device *netdev = hba->netdev;
1068         struct net_device *physdev = hba->phys_dev;
1069         struct netdev_hw_addr *ha;
1070         int sel_san_mac = 0;
1071
1072         /* setup Source MAC Address */
1073         rcu_read_lock();
1074         for_each_dev_addr(physdev, ha) {
1075                 BNX2FC_MISC_DBG("net_config: ha->type = %d, fip_mac = ",
1076                                 ha->type);
1077                 printk(KERN_INFO "%2x:%2x:%2x:%2x:%2x:%2x\n", ha->addr[0],
1078                                 ha->addr[1], ha->addr[2], ha->addr[3],
1079                                 ha->addr[4], ha->addr[5]);
1080
1081                 if ((ha->type == NETDEV_HW_ADDR_T_SAN) &&
1082                     (is_valid_ether_addr(ha->addr))) {
1083                         memcpy(hba->ctlr.ctl_src_addr, ha->addr, ETH_ALEN);
1084                         sel_san_mac = 1;
1085                         BNX2FC_MISC_DBG("Found SAN MAC\n");
1086                 }
1087         }
1088         rcu_read_unlock();
1089
1090         if (!sel_san_mac)
1091                 return -ENODEV;
1092
1093         hba->fip_packet_type.func = bnx2fc_fip_recv;
1094         hba->fip_packet_type.type = htons(ETH_P_FIP);
1095         hba->fip_packet_type.dev = netdev;
1096         dev_add_pack(&hba->fip_packet_type);
1097
1098         hba->fcoe_packet_type.func = bnx2fc_rcv;
1099         hba->fcoe_packet_type.type = __constant_htons(ETH_P_FCOE);
1100         hba->fcoe_packet_type.dev = netdev;
1101         dev_add_pack(&hba->fcoe_packet_type);
1102
1103         return 0;
1104 }
1105
1106 static int bnx2fc_attach_transport(void)
1107 {
1108         bnx2fc_transport_template =
1109                 fc_attach_transport(&bnx2fc_transport_function);
1110
1111         if (bnx2fc_transport_template == NULL) {
1112                 printk(KERN_ERR PFX "Failed to attach FC transport\n");
1113                 return -ENODEV;
1114         }
1115
1116         bnx2fc_vport_xport_template =
1117                 fc_attach_transport(&bnx2fc_vport_xport_function);
1118         if (bnx2fc_vport_xport_template == NULL) {
1119                 printk(KERN_ERR PFX
1120                        "Failed to attach FC transport for vport\n");
1121                 fc_release_transport(bnx2fc_transport_template);
1122                 bnx2fc_transport_template = NULL;
1123                 return -ENODEV;
1124         }
1125         return 0;
1126 }
1127 static void bnx2fc_release_transport(void)
1128 {
1129         fc_release_transport(bnx2fc_transport_template);
1130         fc_release_transport(bnx2fc_vport_xport_template);
1131         bnx2fc_transport_template = NULL;
1132         bnx2fc_vport_xport_template = NULL;
1133 }
1134
1135 static void bnx2fc_interface_release(struct kref *kref)
1136 {
1137         struct bnx2fc_hba *hba;
1138         struct net_device *netdev;
1139         struct net_device *phys_dev;
1140
1141         hba = container_of(kref, struct bnx2fc_hba, kref);
1142         BNX2FC_MISC_DBG("Interface is being released\n");
1143
1144         netdev = hba->netdev;
1145         phys_dev = hba->phys_dev;
1146
1147         /* tear-down FIP controller */
1148         if (test_and_clear_bit(BNX2FC_CTLR_INIT_DONE, &hba->init_done))
1149                 fcoe_ctlr_destroy(&hba->ctlr);
1150
1151         /* Free the command manager */
1152         if (hba->cmd_mgr) {
1153                 bnx2fc_cmd_mgr_free(hba->cmd_mgr);
1154                 hba->cmd_mgr = NULL;
1155         }
1156         dev_put(netdev);
1157         module_put(THIS_MODULE);
1158 }
1159
1160 static inline void bnx2fc_interface_get(struct bnx2fc_hba *hba)
1161 {
1162         kref_get(&hba->kref);
1163 }
1164
1165 static inline void bnx2fc_interface_put(struct bnx2fc_hba *hba)
1166 {
1167         kref_put(&hba->kref, bnx2fc_interface_release);
1168 }
1169 static void bnx2fc_interface_destroy(struct bnx2fc_hba *hba)
1170 {
1171         bnx2fc_unbind_pcidev(hba);
1172         kfree(hba);
1173 }
1174
1175 /**
1176  * bnx2fc_interface_create - create a new fcoe instance
1177  *
1178  * @cnic:       pointer to cnic device
1179  *
1180  * Creates a new FCoE instance on the given device which include allocating
1181  *      hba structure, scsi_host and lport structures.
1182  */
1183 static struct bnx2fc_hba *bnx2fc_interface_create(struct cnic_dev *cnic)
1184 {
1185         struct bnx2fc_hba *hba;
1186         int rc;
1187
1188         hba = kzalloc(sizeof(*hba), GFP_KERNEL);
1189         if (!hba) {
1190                 printk(KERN_ERR PFX "Unable to allocate hba structure\n");
1191                 return NULL;
1192         }
1193         spin_lock_init(&hba->hba_lock);
1194         mutex_init(&hba->hba_mutex);
1195
1196         hba->cnic = cnic;
1197         rc = bnx2fc_bind_pcidev(hba);
1198         if (rc)
1199                 goto bind_err;
1200         hba->phys_dev = cnic->netdev;
1201         /* will get overwritten after we do vlan discovery */
1202         hba->netdev = hba->phys_dev;
1203
1204         init_waitqueue_head(&hba->shutdown_wait);
1205         init_waitqueue_head(&hba->destroy_wait);
1206
1207         return hba;
1208 bind_err:
1209         printk(KERN_ERR PFX "create_interface: bind error\n");
1210         kfree(hba);
1211         return NULL;
1212 }
1213
1214 static int bnx2fc_interface_setup(struct bnx2fc_hba *hba,
1215                                   enum fip_state fip_mode)
1216 {
1217         int rc = 0;
1218         struct net_device *netdev = hba->netdev;
1219         struct fcoe_ctlr *fip = &hba->ctlr;
1220
1221         dev_hold(netdev);
1222         kref_init(&hba->kref);
1223
1224         hba->flags = 0;
1225
1226         /* Initialize FIP */
1227         memset(fip, 0, sizeof(*fip));
1228         fcoe_ctlr_init(fip, fip_mode);
1229         hba->ctlr.send = bnx2fc_fip_send;
1230         hba->ctlr.update_mac = bnx2fc_update_src_mac;
1231         hba->ctlr.get_src_addr = bnx2fc_get_src_mac;
1232         set_bit(BNX2FC_CTLR_INIT_DONE, &hba->init_done);
1233
1234         rc = bnx2fc_netdev_setup(hba);
1235         if (rc)
1236                 goto setup_err;
1237
1238         hba->next_conn_id = 0;
1239
1240         memset(hba->tgt_ofld_list, 0, sizeof(hba->tgt_ofld_list));
1241         hba->num_ofld_sess = 0;
1242
1243         return 0;
1244
1245 setup_err:
1246         fcoe_ctlr_destroy(&hba->ctlr);
1247         dev_put(netdev);
1248         bnx2fc_interface_put(hba);
1249         return rc;
1250 }
1251
1252 /**
1253  * bnx2fc_if_create - Create FCoE instance on a given interface
1254  *
1255  * @hba:        FCoE interface to create a local port on
1256  * @parent:     Device pointer to be the parent in sysfs for the SCSI host
1257  * @npiv:       Indicates if the port is vport or not
1258  *
1259  * Creates a fc_lport instance and a Scsi_Host instance and configure them.
1260  *
1261  * Returns:     Allocated fc_lport or an error pointer
1262  */
1263 static struct fc_lport *bnx2fc_if_create(struct bnx2fc_hba *hba,
1264                                   struct device *parent, int npiv)
1265 {
1266         struct fc_lport         *lport, *n_port;
1267         struct fcoe_port        *port;
1268         struct Scsi_Host        *shost;
1269         struct fc_vport         *vport = dev_to_vport(parent);
1270         int                     rc = 0;
1271
1272         /* Allocate Scsi_Host structure */
1273         if (!npiv)
1274                 lport = libfc_host_alloc(&bnx2fc_shost_template, sizeof(*port));
1275         else
1276                 lport = libfc_vport_create(vport, sizeof(*port));
1277
1278         if (!lport) {
1279                 printk(KERN_ERR PFX "could not allocate scsi host structure\n");
1280                 return NULL;
1281         }
1282         shost = lport->host;
1283         port = lport_priv(lport);
1284         port->lport = lport;
1285         port->priv = hba;
1286         INIT_WORK(&port->destroy_work, bnx2fc_destroy_work);
1287
1288         /* Configure fcoe_port */
1289         rc = bnx2fc_lport_config(lport);
1290         if (rc)
1291                 goto lp_config_err;
1292
1293         if (npiv) {
1294                 printk(KERN_ERR PFX "Setting vport names, 0x%llX 0x%llX\n",
1295                         vport->node_name, vport->port_name);
1296                 fc_set_wwnn(lport, vport->node_name);
1297                 fc_set_wwpn(lport, vport->port_name);
1298         }
1299         /* Configure netdev and networking properties of the lport */
1300         rc = bnx2fc_net_config(lport);
1301         if (rc) {
1302                 printk(KERN_ERR PFX "Error on bnx2fc_net_config\n");
1303                 goto lp_config_err;
1304         }
1305
1306         rc = bnx2fc_shost_config(lport, parent);
1307         if (rc) {
1308                 printk(KERN_ERR PFX "Couldnt configure shost for %s\n",
1309                         hba->netdev->name);
1310                 goto lp_config_err;
1311         }
1312
1313         /* Initialize the libfc library */
1314         rc = bnx2fc_libfc_config(lport);
1315         if (rc) {
1316                 printk(KERN_ERR PFX "Couldnt configure libfc\n");
1317                 goto shost_err;
1318         }
1319         fc_host_port_type(lport->host) = FC_PORTTYPE_UNKNOWN;
1320
1321         /* Allocate exchange manager */
1322         if (!npiv)
1323                 rc = bnx2fc_em_config(lport);
1324         else {
1325                 shost = vport_to_shost(vport);
1326                 n_port = shost_priv(shost);
1327                 rc = fc_exch_mgr_list_clone(n_port, lport);
1328         }
1329
1330         if (rc) {
1331                 printk(KERN_ERR PFX "Error on bnx2fc_em_config\n");
1332                 goto shost_err;
1333         }
1334
1335         bnx2fc_interface_get(hba);
1336         return lport;
1337
1338 shost_err:
1339         scsi_remove_host(shost);
1340 lp_config_err:
1341         scsi_host_put(lport->host);
1342         return NULL;
1343 }
1344
1345 static void bnx2fc_netdev_cleanup(struct bnx2fc_hba *hba)
1346 {
1347         /* Dont listen for Ethernet packets anymore */
1348         __dev_remove_pack(&hba->fcoe_packet_type);
1349         __dev_remove_pack(&hba->fip_packet_type);
1350         synchronize_net();
1351 }
1352
1353 static void bnx2fc_if_destroy(struct fc_lport *lport)
1354 {
1355         struct fcoe_port *port = lport_priv(lport);
1356         struct bnx2fc_hba *hba = port->priv;
1357
1358         BNX2FC_HBA_DBG(hba->ctlr.lp, "ENTERED bnx2fc_if_destroy\n");
1359         /* Stop the transmit retry timer */
1360         del_timer_sync(&port->timer);
1361
1362         /* Free existing transmit skbs */
1363         fcoe_clean_pending_queue(lport);
1364
1365         /* Free queued packets for the receive thread */
1366         bnx2fc_clean_rx_queue(lport);
1367
1368         /* Detach from scsi-ml */
1369         fc_remove_host(lport->host);
1370         scsi_remove_host(lport->host);
1371
1372         /*
1373          * Note that only the physical lport will have the exchange manager.
1374          * for vports, this function is NOP
1375          */
1376         fc_exch_mgr_free(lport);
1377
1378         /* Free memory used by statistical counters */
1379         fc_lport_free_stats(lport);
1380
1381         /* Release Scsi_Host */
1382         scsi_host_put(lport->host);
1383
1384         bnx2fc_interface_put(hba);
1385 }
1386
1387 /**
1388  * bnx2fc_destroy - Destroy a bnx2fc FCoE interface
1389  *
1390  * @buffer: The name of the Ethernet interface to be destroyed
1391  * @kp:     The associated kernel parameter
1392  *
1393  * Called from sysfs.
1394  *
1395  * Returns: 0 for success
1396  */
1397 static int bnx2fc_destroy(struct net_device *netdev)
1398 {
1399         struct bnx2fc_hba *hba = NULL;
1400         struct net_device *phys_dev;
1401         int rc = 0;
1402
1403         rtnl_lock();
1404
1405         mutex_lock(&bnx2fc_dev_lock);
1406         /* obtain physical netdev */
1407         if (netdev->priv_flags & IFF_802_1Q_VLAN)
1408                 phys_dev = vlan_dev_real_dev(netdev);
1409         else {
1410                 printk(KERN_ERR PFX "Not a vlan device\n");
1411                 rc = -ENODEV;
1412                 goto netdev_err;
1413         }
1414
1415         hba = bnx2fc_hba_lookup(phys_dev);
1416         if (!hba || !hba->ctlr.lp) {
1417                 rc = -ENODEV;
1418                 printk(KERN_ERR PFX "bnx2fc_destroy: hba or lport not found\n");
1419                 goto netdev_err;
1420         }
1421
1422         if (!test_bit(BNX2FC_CREATE_DONE, &hba->init_done)) {
1423                 printk(KERN_ERR PFX "bnx2fc_destroy: Create not called\n");
1424                 goto netdev_err;
1425         }
1426
1427         bnx2fc_netdev_cleanup(hba);
1428
1429         bnx2fc_stop(hba);
1430
1431         bnx2fc_if_destroy(hba->ctlr.lp);
1432
1433         destroy_workqueue(hba->timer_work_queue);
1434
1435         if (test_bit(BNX2FC_FW_INIT_DONE, &hba->init_done))
1436                 bnx2fc_fw_destroy(hba);
1437
1438         clear_bit(BNX2FC_CREATE_DONE, &hba->init_done);
1439 netdev_err:
1440         mutex_unlock(&bnx2fc_dev_lock);
1441         rtnl_unlock();
1442         return rc;
1443 }
1444
1445 static void bnx2fc_destroy_work(struct work_struct *work)
1446 {
1447         struct fcoe_port *port;
1448         struct fc_lport *lport;
1449
1450         port = container_of(work, struct fcoe_port, destroy_work);
1451         lport = port->lport;
1452
1453         BNX2FC_HBA_DBG(lport, "Entered bnx2fc_destroy_work\n");
1454
1455         bnx2fc_port_shutdown(lport);
1456         rtnl_lock();
1457         mutex_lock(&bnx2fc_dev_lock);
1458         bnx2fc_if_destroy(lport);
1459         mutex_unlock(&bnx2fc_dev_lock);
1460         rtnl_unlock();
1461 }
1462
1463 static void bnx2fc_unbind_adapter_devices(struct bnx2fc_hba *hba)
1464 {
1465         bnx2fc_free_fw_resc(hba);
1466         bnx2fc_free_task_ctx(hba);
1467 }
1468
1469 /**
1470  * bnx2fc_bind_adapter_devices - binds bnx2fc adapter with the associated
1471  *                      pci structure
1472  *
1473  * @hba:                Adapter instance
1474  */
1475 static int bnx2fc_bind_adapter_devices(struct bnx2fc_hba *hba)
1476 {
1477         if (bnx2fc_setup_task_ctx(hba))
1478                 goto mem_err;
1479
1480         if (bnx2fc_setup_fw_resc(hba))
1481                 goto mem_err;
1482
1483         return 0;
1484 mem_err:
1485         bnx2fc_unbind_adapter_devices(hba);
1486         return -ENOMEM;
1487 }
1488
1489 static int bnx2fc_bind_pcidev(struct bnx2fc_hba *hba)
1490 {
1491         struct cnic_dev *cnic;
1492
1493         if (!hba->cnic) {
1494                 printk(KERN_ERR PFX "cnic is NULL\n");
1495                 return -ENODEV;
1496         }
1497         cnic = hba->cnic;
1498         hba->pcidev = cnic->pcidev;
1499         if (hba->pcidev)
1500                 pci_dev_get(hba->pcidev);
1501
1502         return 0;
1503 }
1504
1505 static void bnx2fc_unbind_pcidev(struct bnx2fc_hba *hba)
1506 {
1507         if (hba->pcidev)
1508                 pci_dev_put(hba->pcidev);
1509         hba->pcidev = NULL;
1510 }
1511
1512
1513
1514 /**
1515  * bnx2fc_ulp_start - cnic callback to initialize & start adapter instance
1516  *
1517  * @handle:     transport handle pointing to adapter struture
1518  *
1519  * This function maps adapter structure to pcidev structure and initiates
1520  *      firmware handshake to enable/initialize on-chip FCoE components.
1521  *      This bnx2fc - cnic interface api callback is used after following
1522  *      conditions are met -
1523  *      a) underlying network interface is up (marked by event NETDEV_UP
1524  *              from netdev
1525  *      b) bnx2fc adatper structure is registered.
1526  */
1527 static void bnx2fc_ulp_start(void *handle)
1528 {
1529         struct bnx2fc_hba *hba = handle;
1530         struct fc_lport *lport = hba->ctlr.lp;
1531
1532         BNX2FC_MISC_DBG("Entered %s\n", __func__);
1533         mutex_lock(&bnx2fc_dev_lock);
1534
1535         if (test_bit(BNX2FC_FW_INIT_DONE, &hba->init_done))
1536                 goto start_disc;
1537
1538         if (test_bit(BNX2FC_CREATE_DONE, &hba->init_done))
1539                 bnx2fc_fw_init(hba);
1540
1541 start_disc:
1542         mutex_unlock(&bnx2fc_dev_lock);
1543
1544         BNX2FC_MISC_DBG("bnx2fc started.\n");
1545
1546         /* Kick off Fabric discovery*/
1547         if (test_bit(BNX2FC_CREATE_DONE, &hba->init_done)) {
1548                 printk(KERN_ERR PFX "ulp_init: start discovery\n");
1549                 lport->tt.frame_send = bnx2fc_xmit;
1550                 bnx2fc_start_disc(hba);
1551         }
1552 }
1553
1554 static void bnx2fc_port_shutdown(struct fc_lport *lport)
1555 {
1556         BNX2FC_MISC_DBG("Entered %s\n", __func__);
1557         fc_fabric_logoff(lport);
1558         fc_lport_destroy(lport);
1559 }
1560
1561 static void bnx2fc_stop(struct bnx2fc_hba *hba)
1562 {
1563         struct fc_lport *lport;
1564         struct fc_lport *vport;
1565
1566         BNX2FC_MISC_DBG("ENTERED %s - init_done = %ld\n", __func__,
1567                    hba->init_done);
1568         if (test_bit(BNX2FC_FW_INIT_DONE, &hba->init_done) &&
1569             test_bit(BNX2FC_CREATE_DONE, &hba->init_done)) {
1570                 lport = hba->ctlr.lp;
1571                 bnx2fc_port_shutdown(lport);
1572                 BNX2FC_HBA_DBG(lport, "bnx2fc_stop: waiting for %d "
1573                                 "offloaded sessions\n",
1574                                 hba->num_ofld_sess);
1575                 wait_event_interruptible(hba->shutdown_wait,
1576                                          (hba->num_ofld_sess == 0));
1577                 mutex_lock(&lport->lp_mutex);
1578                 list_for_each_entry(vport, &lport->vports, list)
1579                         fc_host_port_type(vport->host) = FC_PORTTYPE_UNKNOWN;
1580                 mutex_unlock(&lport->lp_mutex);
1581                 fc_host_port_type(lport->host) = FC_PORTTYPE_UNKNOWN;
1582                 fcoe_ctlr_link_down(&hba->ctlr);
1583                 fcoe_clean_pending_queue(lport);
1584
1585                 mutex_lock(&hba->hba_mutex);
1586                 clear_bit(ADAPTER_STATE_UP, &hba->adapter_state);
1587                 clear_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state);
1588
1589                 clear_bit(ADAPTER_STATE_READY, &hba->adapter_state);
1590                 mutex_unlock(&hba->hba_mutex);
1591         }
1592 }
1593
1594 static int bnx2fc_fw_init(struct bnx2fc_hba *hba)
1595 {
1596 #define BNX2FC_INIT_POLL_TIME           (1000 / HZ)
1597         int rc = -1;
1598         int i = HZ;
1599
1600         rc = bnx2fc_bind_adapter_devices(hba);
1601         if (rc) {
1602                 printk(KERN_ALERT PFX
1603                         "bnx2fc_bind_adapter_devices failed - rc = %d\n", rc);
1604                 goto err_out;
1605         }
1606
1607         rc = bnx2fc_send_fw_fcoe_init_msg(hba);
1608         if (rc) {
1609                 printk(KERN_ALERT PFX
1610                         "bnx2fc_send_fw_fcoe_init_msg failed - rc = %d\n", rc);
1611                 goto err_unbind;
1612         }
1613
1614         /*
1615          * Wait until the adapter init message is complete, and adapter
1616          * state is UP.
1617          */
1618         while (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state) && i--)
1619                 msleep(BNX2FC_INIT_POLL_TIME);
1620
1621         if (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state)) {
1622                 printk(KERN_ERR PFX "bnx2fc_start: %s failed to initialize.  "
1623                                 "Ignoring...\n",
1624                                 hba->cnic->netdev->name);
1625                 rc = -1;
1626                 goto err_unbind;
1627         }
1628
1629
1630         /* Mark HBA to indicate that the FW INIT is done */
1631         set_bit(BNX2FC_FW_INIT_DONE, &hba->init_done);
1632         return 0;
1633
1634 err_unbind:
1635         bnx2fc_unbind_adapter_devices(hba);
1636 err_out:
1637         return rc;
1638 }
1639
1640 static void bnx2fc_fw_destroy(struct bnx2fc_hba *hba)
1641 {
1642         if (test_and_clear_bit(BNX2FC_FW_INIT_DONE, &hba->init_done)) {
1643                 if (bnx2fc_send_fw_fcoe_destroy_msg(hba) == 0) {
1644                         init_timer(&hba->destroy_timer);
1645                         hba->destroy_timer.expires = BNX2FC_FW_TIMEOUT +
1646                                                                 jiffies;
1647                         hba->destroy_timer.function = bnx2fc_destroy_timer;
1648                         hba->destroy_timer.data = (unsigned long)hba;
1649                         add_timer(&hba->destroy_timer);
1650                         wait_event_interruptible(hba->destroy_wait,
1651                                                  (hba->flags &
1652                                                   BNX2FC_FLAG_DESTROY_CMPL));
1653                         /* This should never happen */
1654                         if (signal_pending(current))
1655                                 flush_signals(current);
1656
1657                         del_timer_sync(&hba->destroy_timer);
1658                 }
1659                 bnx2fc_unbind_adapter_devices(hba);
1660         }
1661 }
1662
1663 /**
1664  * bnx2fc_ulp_stop - cnic callback to shutdown adapter instance
1665  *
1666  * @handle:     transport handle pointing to adapter structure
1667  *
1668  * Driver checks if adapter is already in shutdown mode, if not start
1669  *      the shutdown process.
1670  */
1671 static void bnx2fc_ulp_stop(void *handle)
1672 {
1673         struct bnx2fc_hba *hba = (struct bnx2fc_hba *)handle;
1674
1675         printk(KERN_ERR "ULP_STOP\n");
1676
1677         mutex_lock(&bnx2fc_dev_lock);
1678         bnx2fc_stop(hba);
1679         bnx2fc_fw_destroy(hba);
1680         mutex_unlock(&bnx2fc_dev_lock);
1681 }
1682
1683 static void bnx2fc_start_disc(struct bnx2fc_hba *hba)
1684 {
1685         struct fc_lport *lport;
1686         int wait_cnt = 0;
1687
1688         BNX2FC_MISC_DBG("Entered %s\n", __func__);
1689         /* Kick off FIP/FLOGI */
1690         if (!test_bit(BNX2FC_FW_INIT_DONE, &hba->init_done)) {
1691                 printk(KERN_ERR PFX "Init not done yet\n");
1692                 return;
1693         }
1694
1695         lport = hba->ctlr.lp;
1696         BNX2FC_HBA_DBG(lport, "calling fc_fabric_login\n");
1697
1698         if (!bnx2fc_link_ok(lport)) {
1699                 BNX2FC_HBA_DBG(lport, "ctlr_link_up\n");
1700                 fcoe_ctlr_link_up(&hba->ctlr);
1701                 fc_host_port_type(lport->host) = FC_PORTTYPE_NPORT;
1702                 set_bit(ADAPTER_STATE_READY, &hba->adapter_state);
1703         }
1704
1705         /* wait for the FCF to be selected before issuing FLOGI */
1706         while (!hba->ctlr.sel_fcf) {
1707                 msleep(250);
1708                 /* give up after 3 secs */
1709                 if (++wait_cnt > 12)
1710                         break;
1711         }
1712         fc_lport_init(lport);
1713         fc_fabric_login(lport);
1714 }
1715
1716
1717 /**
1718  * bnx2fc_ulp_init - Initialize an adapter instance
1719  *
1720  * @dev :       cnic device handle
1721  * Called from cnic_register_driver() context to initialize all
1722  *      enumerated cnic devices. This routine allocates adapter structure
1723  *      and other device specific resources.
1724  */
1725 static void bnx2fc_ulp_init(struct cnic_dev *dev)
1726 {
1727         struct bnx2fc_hba *hba;
1728         int rc = 0;
1729
1730         BNX2FC_MISC_DBG("Entered %s\n", __func__);
1731         /* bnx2fc works only when bnx2x is loaded */
1732         if (!test_bit(CNIC_F_BNX2X_CLASS, &dev->flags)) {
1733                 printk(KERN_ERR PFX "bnx2fc FCoE not supported on %s,"
1734                                     " flags: %lx\n",
1735                         dev->netdev->name, dev->flags);
1736                 return;
1737         }
1738
1739         /* Configure FCoE interface */
1740         hba = bnx2fc_interface_create(dev);
1741         if (!hba) {
1742                 printk(KERN_ERR PFX "hba initialization failed\n");
1743                 return;
1744         }
1745
1746         /* Add HBA to the adapter list */
1747         mutex_lock(&bnx2fc_dev_lock);
1748         list_add_tail(&hba->link, &adapter_list);
1749         adapter_count++;
1750         mutex_unlock(&bnx2fc_dev_lock);
1751
1752         clear_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic);
1753         rc = dev->register_device(dev, CNIC_ULP_FCOE,
1754                                                 (void *) hba);
1755         if (rc)
1756                 printk(KERN_ALERT PFX "register_device failed, rc = %d\n", rc);
1757         else
1758                 set_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic);
1759 }
1760
1761
1762 static int bnx2fc_disable(struct net_device *netdev)
1763 {
1764         struct bnx2fc_hba *hba;
1765         struct net_device *phys_dev;
1766         struct ethtool_drvinfo drvinfo;
1767         int rc = 0;
1768
1769         rtnl_lock();
1770
1771         mutex_lock(&bnx2fc_dev_lock);
1772
1773         /* obtain physical netdev */
1774         if (netdev->priv_flags & IFF_802_1Q_VLAN)
1775                 phys_dev = vlan_dev_real_dev(netdev);
1776         else {
1777                 printk(KERN_ERR PFX "Not a vlan device\n");
1778                 rc = -ENODEV;
1779                 goto nodev;
1780         }
1781
1782         /* verify if the physical device is a netxtreme2 device */
1783         if (phys_dev->ethtool_ops && phys_dev->ethtool_ops->get_drvinfo) {
1784                 memset(&drvinfo, 0, sizeof(drvinfo));
1785                 phys_dev->ethtool_ops->get_drvinfo(phys_dev, &drvinfo);
1786                 if (strcmp(drvinfo.driver, "bnx2x")) {
1787                         printk(KERN_ERR PFX "Not a netxtreme2 device\n");
1788                         rc = -ENODEV;
1789                         goto nodev;
1790                 }
1791         } else {
1792                 printk(KERN_ERR PFX "unable to obtain drv_info\n");
1793                 rc = -ENODEV;
1794                 goto nodev;
1795         }
1796
1797         printk(KERN_ERR PFX "phys_dev is netxtreme2 device\n");
1798
1799         /* obtain hba and initialize rest of the structure */
1800         hba = bnx2fc_hba_lookup(phys_dev);
1801         if (!hba || !hba->ctlr.lp) {
1802                 rc = -ENODEV;
1803                 printk(KERN_ERR PFX "bnx2fc_disable: hba or lport not found\n");
1804         } else {
1805                 fcoe_ctlr_link_down(&hba->ctlr);
1806                 fcoe_clean_pending_queue(hba->ctlr.lp);
1807         }
1808
1809 nodev:
1810         mutex_unlock(&bnx2fc_dev_lock);
1811         rtnl_unlock();
1812         return rc;
1813 }
1814
1815
1816 static int bnx2fc_enable(struct net_device *netdev)
1817 {
1818         struct bnx2fc_hba *hba;
1819         struct net_device *phys_dev;
1820         struct ethtool_drvinfo drvinfo;
1821         int rc = 0;
1822
1823         rtnl_lock();
1824
1825         BNX2FC_MISC_DBG("Entered %s\n", __func__);
1826         mutex_lock(&bnx2fc_dev_lock);
1827
1828         /* obtain physical netdev */
1829         if (netdev->priv_flags & IFF_802_1Q_VLAN)
1830                 phys_dev = vlan_dev_real_dev(netdev);
1831         else {
1832                 printk(KERN_ERR PFX "Not a vlan device\n");
1833                 rc = -ENODEV;
1834                 goto nodev;
1835         }
1836         /* verify if the physical device is a netxtreme2 device */
1837         if (phys_dev->ethtool_ops && phys_dev->ethtool_ops->get_drvinfo) {
1838                 memset(&drvinfo, 0, sizeof(drvinfo));
1839                 phys_dev->ethtool_ops->get_drvinfo(phys_dev, &drvinfo);
1840                 if (strcmp(drvinfo.driver, "bnx2x")) {
1841                         printk(KERN_ERR PFX "Not a netxtreme2 device\n");
1842                         rc = -ENODEV;
1843                         goto nodev;
1844                 }
1845         } else {
1846                 printk(KERN_ERR PFX "unable to obtain drv_info\n");
1847                 rc = -ENODEV;
1848                 goto nodev;
1849         }
1850
1851         /* obtain hba and initialize rest of the structure */
1852         hba = bnx2fc_hba_lookup(phys_dev);
1853         if (!hba || !hba->ctlr.lp) {
1854                 rc = -ENODEV;
1855                 printk(KERN_ERR PFX "bnx2fc_enable: hba or lport not found\n");
1856         } else if (!bnx2fc_link_ok(hba->ctlr.lp))
1857                 fcoe_ctlr_link_up(&hba->ctlr);
1858
1859 nodev:
1860         mutex_unlock(&bnx2fc_dev_lock);
1861         rtnl_unlock();
1862         return rc;
1863 }
1864
1865 /**
1866  * bnx2fc_create - Create bnx2fc FCoE interface
1867  *
1868  * @buffer: The name of Ethernet interface to create on
1869  * @kp:     The associated kernel param
1870  *
1871  * Called from sysfs.
1872  *
1873  * Returns: 0 for success
1874  */
1875 static int bnx2fc_create(struct net_device *netdev, enum fip_state fip_mode)
1876 {
1877         struct bnx2fc_hba *hba;
1878         struct net_device *phys_dev;
1879         struct fc_lport *lport;
1880         struct ethtool_drvinfo drvinfo;
1881         int rc = 0;
1882         int vlan_id;
1883
1884         BNX2FC_MISC_DBG("Entered bnx2fc_create\n");
1885         if (fip_mode != FIP_MODE_FABRIC) {
1886                 printk(KERN_ERR "fip mode not FABRIC\n");
1887                 return -EIO;
1888         }
1889
1890         rtnl_lock();
1891
1892         mutex_lock(&bnx2fc_dev_lock);
1893
1894         if (!try_module_get(THIS_MODULE)) {
1895                 rc = -EINVAL;
1896                 goto mod_err;
1897         }
1898
1899         /* obtain physical netdev */
1900         if (netdev->priv_flags & IFF_802_1Q_VLAN) {
1901                 phys_dev = vlan_dev_real_dev(netdev);
1902                 vlan_id = vlan_dev_vlan_id(netdev);
1903         } else {
1904                 printk(KERN_ERR PFX "Not a vlan device\n");
1905                 rc = -EINVAL;
1906                 goto netdev_err;
1907         }
1908         /* verify if the physical device is a netxtreme2 device */
1909         if (phys_dev->ethtool_ops && phys_dev->ethtool_ops->get_drvinfo) {
1910                 memset(&drvinfo, 0, sizeof(drvinfo));
1911                 phys_dev->ethtool_ops->get_drvinfo(phys_dev, &drvinfo);
1912                 if (strcmp(drvinfo.driver, "bnx2x")) {
1913                         printk(KERN_ERR PFX "Not a netxtreme2 device\n");
1914                         rc = -EINVAL;
1915                         goto netdev_err;
1916                 }
1917         } else {
1918                 printk(KERN_ERR PFX "unable to obtain drv_info\n");
1919                 rc = -EINVAL;
1920                 goto netdev_err;
1921         }
1922
1923         /* obtain hba and initialize rest of the structure */
1924         hba = bnx2fc_hba_lookup(phys_dev);
1925         if (!hba) {
1926                 rc = -ENODEV;
1927                 printk(KERN_ERR PFX "bnx2fc_create: hba not found\n");
1928                 goto netdev_err;
1929         }
1930
1931         if (!test_bit(BNX2FC_FW_INIT_DONE, &hba->init_done)) {
1932                 rc = bnx2fc_fw_init(hba);
1933                 if (rc)
1934                         goto netdev_err;
1935         }
1936
1937         if (test_bit(BNX2FC_CREATE_DONE, &hba->init_done)) {
1938                 rc = -EEXIST;
1939                 goto netdev_err;
1940         }
1941
1942         /* update netdev with vlan netdev */
1943         hba->netdev = netdev;
1944         hba->vlan_id = vlan_id;
1945         hba->vlan_enabled = 1;
1946
1947         rc = bnx2fc_interface_setup(hba, fip_mode);
1948         if (rc) {
1949                 printk(KERN_ERR PFX "bnx2fc_interface_setup failed\n");
1950                 goto ifput_err;
1951         }
1952
1953         hba->timer_work_queue =
1954                         create_singlethread_workqueue("bnx2fc_timer_wq");
1955         if (!hba->timer_work_queue) {
1956                 printk(KERN_ERR PFX "ulp_init could not create timer_wq\n");
1957                 rc = -EINVAL;
1958                 goto ifput_err;
1959         }
1960
1961         lport = bnx2fc_if_create(hba, &hba->pcidev->dev, 0);
1962         if (!lport) {
1963                 printk(KERN_ERR PFX "Failed to create interface (%s)\n",
1964                         netdev->name);
1965                 bnx2fc_netdev_cleanup(hba);
1966                 rc = -EINVAL;
1967                 goto if_create_err;
1968         }
1969
1970         lport->boot_time = jiffies;
1971
1972         /* Make this master N_port */
1973         hba->ctlr.lp = lport;
1974
1975         set_bit(BNX2FC_CREATE_DONE, &hba->init_done);
1976         printk(KERN_ERR PFX "create: START DISC\n");
1977         bnx2fc_start_disc(hba);
1978         /*
1979          * Release from kref_init in bnx2fc_interface_setup, on success
1980          * lport should be holding a reference taken in bnx2fc_if_create
1981          */
1982         bnx2fc_interface_put(hba);
1983         /* put netdev that was held while calling dev_get_by_name */
1984         mutex_unlock(&bnx2fc_dev_lock);
1985         rtnl_unlock();
1986         return 0;
1987
1988 if_create_err:
1989         destroy_workqueue(hba->timer_work_queue);
1990 ifput_err:
1991         bnx2fc_interface_put(hba);
1992 netdev_err:
1993         module_put(THIS_MODULE);
1994 mod_err:
1995         mutex_unlock(&bnx2fc_dev_lock);
1996         rtnl_unlock();
1997         return rc;
1998 }
1999
2000 /**
2001  * bnx2fc_find_hba_for_cnic - maps cnic instance to bnx2fc adapter instance
2002  *
2003  * @cnic:       Pointer to cnic device instance
2004  *
2005  **/
2006 static struct bnx2fc_hba *bnx2fc_find_hba_for_cnic(struct cnic_dev *cnic)
2007 {
2008         struct list_head *list;
2009         struct list_head *temp;
2010         struct bnx2fc_hba *hba;
2011
2012         /* Called with bnx2fc_dev_lock held */
2013         list_for_each_safe(list, temp, &adapter_list) {
2014                 hba = (struct bnx2fc_hba *)list;
2015                 if (hba->cnic == cnic)
2016                         return hba;
2017         }
2018         return NULL;
2019 }
2020
2021 static struct bnx2fc_hba *bnx2fc_hba_lookup(struct net_device *phys_dev)
2022 {
2023         struct list_head *list;
2024         struct list_head *temp;
2025         struct bnx2fc_hba *hba;
2026
2027         /* Called with bnx2fc_dev_lock held */
2028         list_for_each_safe(list, temp, &adapter_list) {
2029                 hba = (struct bnx2fc_hba *)list;
2030                 if (hba->phys_dev == phys_dev)
2031                         return hba;
2032         }
2033         printk(KERN_ERR PFX "hba_lookup: hba NULL\n");
2034         return NULL;
2035 }
2036
2037 /**
2038  * bnx2fc_ulp_exit - shuts down adapter instance and frees all resources
2039  *
2040  * @dev         cnic device handle
2041  */
2042 static void bnx2fc_ulp_exit(struct cnic_dev *dev)
2043 {
2044         struct bnx2fc_hba *hba;
2045
2046         BNX2FC_MISC_DBG("Entered bnx2fc_ulp_exit\n");
2047
2048         if (!test_bit(CNIC_F_BNX2X_CLASS, &dev->flags)) {
2049                 printk(KERN_ERR PFX "bnx2fc port check: %s, flags: %lx\n",
2050                         dev->netdev->name, dev->flags);
2051                 return;
2052         }
2053
2054         mutex_lock(&bnx2fc_dev_lock);
2055         hba = bnx2fc_find_hba_for_cnic(dev);
2056         if (!hba) {
2057                 printk(KERN_ERR PFX "bnx2fc_ulp_exit: hba not found, dev 0%p\n",
2058                        dev);
2059                 mutex_unlock(&bnx2fc_dev_lock);
2060                 return;
2061         }
2062
2063         list_del_init(&hba->link);
2064         adapter_count--;
2065
2066         if (test_bit(BNX2FC_CREATE_DONE, &hba->init_done)) {
2067                 /* destroy not called yet, move to quiesced list */
2068                 bnx2fc_netdev_cleanup(hba);
2069                 bnx2fc_if_destroy(hba->ctlr.lp);
2070         }
2071         mutex_unlock(&bnx2fc_dev_lock);
2072
2073         bnx2fc_ulp_stop(hba);
2074         /* unregister cnic device */
2075         if (test_and_clear_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic))
2076                 hba->cnic->unregister_device(hba->cnic, CNIC_ULP_FCOE);
2077         bnx2fc_interface_destroy(hba);
2078 }
2079
2080 /**
2081  * bnx2fc_fcoe_reset - Resets the fcoe
2082  *
2083  * @shost: shost the reset is from
2084  *
2085  * Returns: always 0
2086  */
2087 static int bnx2fc_fcoe_reset(struct Scsi_Host *shost)
2088 {
2089         struct fc_lport *lport = shost_priv(shost);
2090         fc_lport_reset(lport);
2091         return 0;
2092 }
2093
2094
2095 static bool bnx2fc_match(struct net_device *netdev)
2096 {
2097         mutex_lock(&bnx2fc_dev_lock);
2098         if (netdev->priv_flags & IFF_802_1Q_VLAN) {
2099                 struct net_device *phys_dev = vlan_dev_real_dev(netdev);
2100
2101                 if (bnx2fc_hba_lookup(phys_dev)) {
2102                         mutex_unlock(&bnx2fc_dev_lock);
2103                         return true;
2104                 }
2105         }
2106         mutex_unlock(&bnx2fc_dev_lock);
2107         return false;
2108 }
2109
2110
2111 static struct fcoe_transport bnx2fc_transport = {
2112         .name = {"bnx2fc"},
2113         .attached = false,
2114         .list = LIST_HEAD_INIT(bnx2fc_transport.list),
2115         .match = bnx2fc_match,
2116         .create = bnx2fc_create,
2117         .destroy = bnx2fc_destroy,
2118         .enable = bnx2fc_enable,
2119         .disable = bnx2fc_disable,
2120 };
2121
2122 /**
2123  * bnx2fc_percpu_thread_create - Create a receive thread for an
2124  *                               online CPU
2125  *
2126  * @cpu: cpu index for the online cpu
2127  */
2128 static void bnx2fc_percpu_thread_create(unsigned int cpu)
2129 {
2130         struct bnx2fc_percpu_s *p;
2131         struct task_struct *thread;
2132
2133         p = &per_cpu(bnx2fc_percpu, cpu);
2134
2135         thread = kthread_create(bnx2fc_percpu_io_thread,
2136                                 (void *)p,
2137                                 "bnx2fc_thread/%d", cpu);
2138         /* bind thread to the cpu */
2139         if (likely(!IS_ERR(p->iothread))) {
2140                 kthread_bind(thread, cpu);
2141                 p->iothread = thread;
2142                 wake_up_process(thread);
2143         }
2144 }
2145
2146 static void bnx2fc_percpu_thread_destroy(unsigned int cpu)
2147 {
2148         struct bnx2fc_percpu_s *p;
2149         struct task_struct *thread;
2150         struct bnx2fc_work *work, *tmp;
2151         LIST_HEAD(work_list);
2152
2153         BNX2FC_MISC_DBG("destroying io thread for CPU %d\n", cpu);
2154
2155         /* Prevent any new work from being queued for this CPU */
2156         p = &per_cpu(bnx2fc_percpu, cpu);
2157         spin_lock_bh(&p->fp_work_lock);
2158         thread = p->iothread;
2159         p->iothread = NULL;
2160
2161
2162         /* Free all work in the list */
2163         list_for_each_entry_safe(work, tmp, &work_list, list) {
2164                 list_del_init(&work->list);
2165                 bnx2fc_process_cq_compl(work->tgt, work->wqe);
2166                 kfree(work);
2167         }
2168
2169         spin_unlock_bh(&p->fp_work_lock);
2170
2171         if (thread)
2172                 kthread_stop(thread);
2173 }
2174
2175 /**
2176  * bnx2fc_cpu_callback - Handler for CPU hotplug events
2177  *
2178  * @nfb:    The callback data block
2179  * @action: The event triggering the callback
2180  * @hcpu:   The index of the CPU that the event is for
2181  *
2182  * This creates or destroys per-CPU data for fcoe
2183  *
2184  * Returns NOTIFY_OK always.
2185  */
2186 static int bnx2fc_cpu_callback(struct notifier_block *nfb,
2187                              unsigned long action, void *hcpu)
2188 {
2189         unsigned cpu = (unsigned long)hcpu;
2190
2191         switch (action) {
2192         case CPU_ONLINE:
2193         case CPU_ONLINE_FROZEN:
2194                 printk(PFX "CPU %x online: Create Rx thread\n", cpu);
2195                 bnx2fc_percpu_thread_create(cpu);
2196                 break;
2197         case CPU_DEAD:
2198         case CPU_DEAD_FROZEN:
2199                 printk(PFX "CPU %x offline: Remove Rx thread\n", cpu);
2200                 bnx2fc_percpu_thread_destroy(cpu);
2201                 break;
2202         default:
2203                 break;
2204         }
2205         return NOTIFY_OK;
2206 }
2207
2208 /**
2209  * bnx2fc_mod_init - module init entry point
2210  *
2211  * Initialize driver wide global data structures, and register
2212  * with cnic module
2213  **/
2214 static int __init bnx2fc_mod_init(void)
2215 {
2216         struct fcoe_percpu_s *bg;
2217         struct task_struct *l2_thread;
2218         int rc = 0;
2219         unsigned int cpu = 0;
2220         struct bnx2fc_percpu_s *p;
2221
2222         printk(KERN_INFO PFX "%s", version);
2223
2224         /* register as a fcoe transport */
2225         rc = fcoe_transport_attach(&bnx2fc_transport);
2226         if (rc) {
2227                 printk(KERN_ERR "failed to register an fcoe transport, check "
2228                         "if libfcoe is loaded\n");
2229                 goto out;
2230         }
2231
2232         INIT_LIST_HEAD(&adapter_list);
2233         mutex_init(&bnx2fc_dev_lock);
2234         adapter_count = 0;
2235
2236         /* Attach FC transport template */
2237         rc = bnx2fc_attach_transport();
2238         if (rc)
2239                 goto detach_ft;
2240
2241         bnx2fc_wq = alloc_workqueue("bnx2fc", 0, 0);
2242         if (!bnx2fc_wq) {
2243                 rc = -ENOMEM;
2244                 goto release_bt;
2245         }
2246
2247         bg = &bnx2fc_global;
2248         skb_queue_head_init(&bg->fcoe_rx_list);
2249         l2_thread = kthread_create(bnx2fc_l2_rcv_thread,
2250                                    (void *)bg,
2251                                    "bnx2fc_l2_thread");
2252         if (IS_ERR(l2_thread)) {
2253                 rc = PTR_ERR(l2_thread);
2254                 goto free_wq;
2255         }
2256         wake_up_process(l2_thread);
2257         spin_lock_bh(&bg->fcoe_rx_list.lock);
2258         bg->thread = l2_thread;
2259         spin_unlock_bh(&bg->fcoe_rx_list.lock);
2260
2261         for_each_possible_cpu(cpu) {
2262                 p = &per_cpu(bnx2fc_percpu, cpu);
2263                 INIT_LIST_HEAD(&p->work_list);
2264                 spin_lock_init(&p->fp_work_lock);
2265         }
2266
2267         for_each_online_cpu(cpu) {
2268                 bnx2fc_percpu_thread_create(cpu);
2269         }
2270
2271         /* Initialize per CPU interrupt thread */
2272         register_hotcpu_notifier(&bnx2fc_cpu_notifier);
2273
2274         cnic_register_driver(CNIC_ULP_FCOE, &bnx2fc_cnic_cb);
2275
2276         return 0;
2277
2278 free_wq:
2279         destroy_workqueue(bnx2fc_wq);
2280 release_bt:
2281         bnx2fc_release_transport();
2282 detach_ft:
2283         fcoe_transport_detach(&bnx2fc_transport);
2284 out:
2285         return rc;
2286 }
2287
2288 static void __exit bnx2fc_mod_exit(void)
2289 {
2290         LIST_HEAD(to_be_deleted);
2291         struct bnx2fc_hba *hba, *next;
2292         struct fcoe_percpu_s *bg;
2293         struct task_struct *l2_thread;
2294         struct sk_buff *skb;
2295         unsigned int cpu = 0;
2296
2297         /*
2298          * NOTE: Since cnic calls register_driver routine rtnl_lock,
2299          * it will have higher precedence than bnx2fc_dev_lock.
2300          * unregister_device() cannot be called with bnx2fc_dev_lock
2301          * held.
2302          */
2303         mutex_lock(&bnx2fc_dev_lock);
2304         list_splice(&adapter_list, &to_be_deleted);
2305         INIT_LIST_HEAD(&adapter_list);
2306         adapter_count = 0;
2307         mutex_unlock(&bnx2fc_dev_lock);
2308
2309         /* Unregister with cnic */
2310         list_for_each_entry_safe(hba, next, &to_be_deleted, link) {
2311                 list_del_init(&hba->link);
2312                 printk(KERN_ERR PFX "MOD_EXIT:destroy hba = 0x%p, kref = %d\n",
2313                         hba, atomic_read(&hba->kref.refcount));
2314                 bnx2fc_ulp_stop(hba);
2315                 /* unregister cnic device */
2316                 if (test_and_clear_bit(BNX2FC_CNIC_REGISTERED,
2317                                        &hba->reg_with_cnic))
2318                         hba->cnic->unregister_device(hba->cnic, CNIC_ULP_FCOE);
2319                 bnx2fc_interface_destroy(hba);
2320         }
2321         cnic_unregister_driver(CNIC_ULP_FCOE);
2322
2323         /* Destroy global thread */
2324         bg = &bnx2fc_global;
2325         spin_lock_bh(&bg->fcoe_rx_list.lock);
2326         l2_thread = bg->thread;
2327         bg->thread = NULL;
2328         while ((skb = __skb_dequeue(&bg->fcoe_rx_list)) != NULL)
2329                 kfree_skb(skb);
2330
2331         spin_unlock_bh(&bg->fcoe_rx_list.lock);
2332
2333         if (l2_thread)
2334                 kthread_stop(l2_thread);
2335
2336         unregister_hotcpu_notifier(&bnx2fc_cpu_notifier);
2337
2338         /* Destroy per cpu threads */
2339         for_each_online_cpu(cpu) {
2340                 bnx2fc_percpu_thread_destroy(cpu);
2341         }
2342
2343         destroy_workqueue(bnx2fc_wq);
2344         /*
2345          * detach from scsi transport
2346          * must happen after all destroys are done
2347          */
2348         bnx2fc_release_transport();
2349
2350         /* detach from fcoe transport */
2351         fcoe_transport_detach(&bnx2fc_transport);
2352 }
2353
2354 module_init(bnx2fc_mod_init);
2355 module_exit(bnx2fc_mod_exit);
2356
2357 static struct fc_function_template bnx2fc_transport_function = {
2358         .show_host_node_name = 1,
2359         .show_host_port_name = 1,
2360         .show_host_supported_classes = 1,
2361         .show_host_supported_fc4s = 1,
2362         .show_host_active_fc4s = 1,
2363         .show_host_maxframe_size = 1,
2364
2365         .show_host_port_id = 1,
2366         .show_host_supported_speeds = 1,
2367         .get_host_speed = fc_get_host_speed,
2368         .show_host_speed = 1,
2369         .show_host_port_type = 1,
2370         .get_host_port_state = fc_get_host_port_state,
2371         .show_host_port_state = 1,
2372         .show_host_symbolic_name = 1,
2373
2374         .dd_fcrport_size = (sizeof(struct fc_rport_libfc_priv) +
2375                                 sizeof(struct bnx2fc_rport)),
2376         .show_rport_maxframe_size = 1,
2377         .show_rport_supported_classes = 1,
2378
2379         .show_host_fabric_name = 1,
2380         .show_starget_node_name = 1,
2381         .show_starget_port_name = 1,
2382         .show_starget_port_id = 1,
2383         .set_rport_dev_loss_tmo = fc_set_rport_loss_tmo,
2384         .show_rport_dev_loss_tmo = 1,
2385         .get_fc_host_stats = bnx2fc_get_host_stats,
2386
2387         .issue_fc_host_lip = bnx2fc_fcoe_reset,
2388
2389         .terminate_rport_io = fc_rport_terminate_io,
2390
2391         .vport_create = bnx2fc_vport_create,
2392         .vport_delete = bnx2fc_vport_destroy,
2393         .vport_disable = bnx2fc_vport_disable,
2394 };
2395
2396 static struct fc_function_template bnx2fc_vport_xport_function = {
2397         .show_host_node_name = 1,
2398         .show_host_port_name = 1,
2399         .show_host_supported_classes = 1,
2400         .show_host_supported_fc4s = 1,
2401         .show_host_active_fc4s = 1,
2402         .show_host_maxframe_size = 1,
2403
2404         .show_host_port_id = 1,
2405         .show_host_supported_speeds = 1,
2406         .get_host_speed = fc_get_host_speed,
2407         .show_host_speed = 1,
2408         .show_host_port_type = 1,
2409         .get_host_port_state = fc_get_host_port_state,
2410         .show_host_port_state = 1,
2411         .show_host_symbolic_name = 1,
2412
2413         .dd_fcrport_size = (sizeof(struct fc_rport_libfc_priv) +
2414                                 sizeof(struct bnx2fc_rport)),
2415         .show_rport_maxframe_size = 1,
2416         .show_rport_supported_classes = 1,
2417
2418         .show_host_fabric_name = 1,
2419         .show_starget_node_name = 1,
2420         .show_starget_port_name = 1,
2421         .show_starget_port_id = 1,
2422         .set_rport_dev_loss_tmo = fc_set_rport_loss_tmo,
2423         .show_rport_dev_loss_tmo = 1,
2424         .get_fc_host_stats = fc_get_host_stats,
2425         .issue_fc_host_lip = bnx2fc_fcoe_reset,
2426         .terminate_rport_io = fc_rport_terminate_io,
2427 };
2428
2429 /**
2430  * scsi_host_template structure used while registering with SCSI-ml
2431  */
2432 static struct scsi_host_template bnx2fc_shost_template = {
2433         .module                 = THIS_MODULE,
2434         .name                   = "Broadcom Offload FCoE Initiator",
2435         .queuecommand           = bnx2fc_queuecommand,
2436         .eh_abort_handler       = bnx2fc_eh_abort,        /* abts */
2437         .eh_device_reset_handler = bnx2fc_eh_device_reset, /* lun reset */
2438         .eh_target_reset_handler = bnx2fc_eh_target_reset, /* tgt reset */
2439         .eh_host_reset_handler  = fc_eh_host_reset,
2440         .slave_alloc            = fc_slave_alloc,
2441         .change_queue_depth     = fc_change_queue_depth,
2442         .change_queue_type      = fc_change_queue_type,
2443         .this_id                = -1,
2444         .cmd_per_lun            = 3,
2445         .can_queue              = BNX2FC_CAN_QUEUE,
2446         .use_clustering         = ENABLE_CLUSTERING,
2447         .sg_tablesize           = BNX2FC_MAX_BDS_PER_CMD,
2448         .max_sectors            = 512,
2449 };
2450
2451 static struct libfc_function_template bnx2fc_libfc_fcn_templ = {
2452         .frame_send             = bnx2fc_xmit,
2453         .elsct_send             = bnx2fc_elsct_send,
2454         .fcp_abort_io           = bnx2fc_abort_io,
2455         .fcp_cleanup            = bnx2fc_cleanup,
2456         .rport_event_callback   = bnx2fc_rport_event_handler,
2457 };
2458
2459 /**
2460  * bnx2fc_cnic_cb - global template of bnx2fc - cnic driver interface
2461  *                      structure carrying callback function pointers
2462  */
2463 static struct cnic_ulp_ops bnx2fc_cnic_cb = {
2464         .owner                  = THIS_MODULE,
2465         .cnic_init              = bnx2fc_ulp_init,
2466         .cnic_exit              = bnx2fc_ulp_exit,
2467         .cnic_start             = bnx2fc_ulp_start,
2468         .cnic_stop              = bnx2fc_ulp_stop,
2469         .indicate_kcqes         = bnx2fc_indicate_kcqe,
2470         .indicate_netevent      = bnx2fc_indicate_netevent,
2471 };