drivers/scsi/bnx2fc/bnx2fc_fcoe.c

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