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 - 2011 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 struct list_head if_list;
  19 static u32 adapter_count;
  20 static DEFINE_MUTEX(bnx2fc_dev_lock);
  21 DEFINE_PER_CPU(struct bnx2fc_percpu_s, bnx2fc_percpu);
  22
  23 #define DRV_MODULE_NAME         "bnx2fc"
  24 #define DRV_MODULE_VERSION      BNX2FC_VERSION
  25 #define DRV_MODULE_RELDATE      "Aug 03, 2011"
  26
  27
  28 static char version[] __devinitdata =
  29                 "Broadcom NetXtreme II FCoE Driver " DRV_MODULE_NAME \
  30                 " v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n";
  31
  32
  33 MODULE_AUTHOR("Bhanu Prakash Gollapudi <bprakash@broadcom.com>");
  34 MODULE_DESCRIPTION("Broadcom NetXtreme II BCM57710 FCoE Driver");
  35 MODULE_LICENSE("GPL");
  36 MODULE_VERSION(DRV_MODULE_VERSION);
  37
  38 #define BNX2FC_MAX_QUEUE_DEPTH  256
  39 #define BNX2FC_MIN_QUEUE_DEPTH  32
  40 #define FCOE_WORD_TO_BYTE  4
  41
  42 static struct scsi_transport_template   *bnx2fc_transport_template;
  43 static struct scsi_transport_template   *bnx2fc_vport_xport_template;
  44
  45 struct workqueue_struct *bnx2fc_wq;
  46
  47 /* bnx2fc structure needs only one instance of the fcoe_percpu_s structure.
  48  * Here the io threads are per cpu but the l2 thread is just one
  49  */
  50 struct fcoe_percpu_s bnx2fc_global;
  51 DEFINE_SPINLOCK(bnx2fc_global_lock);
  52
  53 static struct cnic_ulp_ops bnx2fc_cnic_cb;
  54 static struct libfc_function_template bnx2fc_libfc_fcn_templ;
  55 static struct scsi_host_template bnx2fc_shost_template;
  56 static struct fc_function_template bnx2fc_transport_function;
  57 static struct fc_function_template bnx2fc_vport_xport_function;
  58 static int bnx2fc_create(struct net_device *netdev, enum fip_state fip_mode);
  59 static void __bnx2fc_destroy(struct bnx2fc_interface *interface);
  60 static int bnx2fc_destroy(struct net_device *net_device);
  61 static int bnx2fc_enable(struct net_device *netdev);
  62 static int bnx2fc_disable(struct net_device *netdev);
  63
  64 static void bnx2fc_recv_frame(struct sk_buff *skb);
  65
  66 static void bnx2fc_start_disc(struct bnx2fc_interface *interface);
  67 static int bnx2fc_shost_config(struct fc_lport *lport, struct device *dev);
  68 static int bnx2fc_lport_config(struct fc_lport *lport);
  69 static int bnx2fc_em_config(struct fc_lport *lport);
  70 static int bnx2fc_bind_adapter_devices(struct bnx2fc_hba *hba);
  71 static void bnx2fc_unbind_adapter_devices(struct bnx2fc_hba *hba);
  72 static int bnx2fc_bind_pcidev(struct bnx2fc_hba *hba);
  73 static void bnx2fc_unbind_pcidev(struct bnx2fc_hba *hba);
  74 static struct fc_lport *bnx2fc_if_create(struct bnx2fc_interface *interface,
  75                                   struct device *parent, int npiv);
  76 static void bnx2fc_destroy_work(struct work_struct *work);
  77
  78 static struct bnx2fc_hba *bnx2fc_hba_lookup(struct net_device *phys_dev);
  79 static struct bnx2fc_interface *bnx2fc_interface_lookup(struct net_device
  80                                                         *phys_dev);
  81 static inline void bnx2fc_interface_put(struct bnx2fc_interface *interface);
  82 static struct bnx2fc_hba *bnx2fc_find_hba_for_cnic(struct cnic_dev *cnic);
  83
  84 static int bnx2fc_fw_init(struct bnx2fc_hba *hba);
  85 static void bnx2fc_fw_destroy(struct bnx2fc_hba *hba);
  86
  87 static void bnx2fc_port_shutdown(struct fc_lport *lport);
  88 static void bnx2fc_stop(struct bnx2fc_interface *interface);
  89 static int __init bnx2fc_mod_init(void);
  90 static void __exit bnx2fc_mod_exit(void);
  91
  92 unsigned int bnx2fc_debug_level;
  93 module_param_named(debug_logging, bnx2fc_debug_level, int, S_IRUGO|S_IWUSR);
  94
  95 static int bnx2fc_cpu_callback(struct notifier_block *nfb,
  96                              unsigned long action, void *hcpu);
  97 /* notification function for CPU hotplug events */
  98 static struct notifier_block bnx2fc_cpu_notifier = {
  99         .notifier_call = bnx2fc_cpu_callback,
 100 };
 101
 102 static void bnx2fc_clean_rx_queue(struct fc_lport *lp)
 103 {
 104         struct fcoe_percpu_s *bg;
 105         struct fcoe_rcv_info *fr;
 106         struct sk_buff_head *list;
 107         struct sk_buff *skb, *next;
 108         struct sk_buff *head;
 109
 110         bg = &bnx2fc_global;
 111         spin_lock_bh(&bg->fcoe_rx_list.lock);
 112         list = &bg->fcoe_rx_list;
 113         head = list->next;
 114         for (skb = head; skb != (struct sk_buff *)list;
 115              skb = next) {
 116                 next = skb->next;
 117                 fr = fcoe_dev_from_skb(skb);
 118                 if (fr->fr_dev == lp) {
 119                         __skb_unlink(skb, list);
 120                         kfree_skb(skb);
 121                 }
 122         }
 123         spin_unlock_bh(&bg->fcoe_rx_list.lock);
 124 }
 125
 126 int bnx2fc_get_paged_crc_eof(struct sk_buff *skb, int tlen)
 127 {
 128         int rc;
 129         spin_lock(&bnx2fc_global_lock);
 130         rc = fcoe_get_paged_crc_eof(skb, tlen, &bnx2fc_global);
 131         spin_unlock(&bnx2fc_global_lock);
 132
 133         return rc;
 134 }
 135
 136 static void bnx2fc_abort_io(struct fc_lport *lport)
 137 {
 138         /*
 139          * This function is no-op for bnx2fc, but we do
 140          * not want to leave it as NULL either, as libfc
 141          * can call the default function which is
 142          * fc_fcp_abort_io.
 143          */
 144 }
 145
 146 static void bnx2fc_cleanup(struct fc_lport *lport)
 147 {
 148         struct fcoe_port *port = lport_priv(lport);
 149         struct bnx2fc_interface *interface = port->priv;
 150         struct bnx2fc_hba *hba = interface->hba;
 151         struct bnx2fc_rport *tgt;
 152         int i;
 153
 154         BNX2FC_MISC_DBG("Entered %s\n", __func__);
 155         mutex_lock(&hba->hba_mutex);
 156         spin_lock_bh(&hba->hba_lock);
 157         for (i = 0; i < BNX2FC_NUM_MAX_SESS; i++) {
 158                 tgt = hba->tgt_ofld_list[i];
 159                 if (tgt) {
 160                         /* Cleanup IOs belonging to requested vport */
 161                         if (tgt->port == port) {
 162                                 spin_unlock_bh(&hba->hba_lock);
 163                                 BNX2FC_TGT_DBG(tgt, "flush/cleanup\n");
 164                                 bnx2fc_flush_active_ios(tgt);
 165                                 spin_lock_bh(&hba->hba_lock);
 166                         }
 167                 }
 168         }
 169         spin_unlock_bh(&hba->hba_lock);
 170         mutex_unlock(&hba->hba_mutex);
 171 }
 172
 173 static int bnx2fc_xmit_l2_frame(struct bnx2fc_rport *tgt,
 174                              struct fc_frame *fp)
 175 {
 176         struct fc_rport_priv *rdata = tgt->rdata;
 177         struct fc_frame_header *fh;
 178         int rc = 0;
 179
 180         fh = fc_frame_header_get(fp);
 181         BNX2FC_TGT_DBG(tgt, "Xmit L2 frame rport = 0x%x, oxid = 0x%x, "
 182                         "r_ctl = 0x%x\n", rdata->ids.port_id,
 183                         ntohs(fh->fh_ox_id), fh->fh_r_ctl);
 184         if ((fh->fh_type == FC_TYPE_ELS) &&
 185             (fh->fh_r_ctl == FC_RCTL_ELS_REQ)) {
 186
 187                 switch (fc_frame_payload_op(fp)) {
 188                 case ELS_ADISC:
 189                         rc = bnx2fc_send_adisc(tgt, fp);
 190                         break;
 191                 case ELS_LOGO:
 192                         rc = bnx2fc_send_logo(tgt, fp);
 193                         break;
 194                 case ELS_RLS:
 195                         rc = bnx2fc_send_rls(tgt, fp);
 196                         break;
 197                 default:
 198                         break;
 199                 }
 200         } else if ((fh->fh_type ==  FC_TYPE_BLS) &&
 201             (fh->fh_r_ctl == FC_RCTL_BA_ABTS))
 202                 BNX2FC_TGT_DBG(tgt, "ABTS frame\n");
 203         else {
 204                 BNX2FC_TGT_DBG(tgt, "Send L2 frame type 0x%x "
 205                                 "rctl 0x%x thru non-offload path\n",
 206                                 fh->fh_type, fh->fh_r_ctl);
 207                 return -ENODEV;
 208         }
 209         if (rc)
 210                 return -ENOMEM;
 211         else
 212                 return 0;
 213 }
 214
 215 /**
 216  * bnx2fc_xmit - bnx2fc's FCoE frame transmit function
 217  *
 218  * @lport:      the associated local port
 219  * @fp: the fc_frame to be transmitted
 220  */
 221 static int bnx2fc_xmit(struct fc_lport *lport, struct fc_frame *fp)
 222 {
 223         struct ethhdr           *eh;
 224         struct fcoe_crc_eof     *cp;
 225         struct sk_buff          *skb;
 226         struct fc_frame_header  *fh;
 227         struct bnx2fc_interface *interface;
 228         struct bnx2fc_hba *hba;
 229         struct fcoe_port        *port;
 230         struct fcoe_hdr         *hp;
 231         struct bnx2fc_rport     *tgt;
 232         struct fcoe_dev_stats   *stats;
 233         u8                      sof, eof;
 234         u32                     crc;
 235         unsigned int            hlen, tlen, elen;
 236         int                     wlen, rc = 0;
 237
 238         port = (struct fcoe_port *)lport_priv(lport);
 239         interface = port->priv;
 240         hba = interface->hba;
 241
 242         fh = fc_frame_header_get(fp);
 243
 244         skb = fp_skb(fp);
 245         if (!lport->link_up) {
 246                 BNX2FC_HBA_DBG(lport, "bnx2fc_xmit link down\n");
 247                 kfree_skb(skb);
 248                 return 0;
 249         }
 250
 251         if (unlikely(fh->fh_r_ctl == FC_RCTL_ELS_REQ)) {
 252                 if (!interface->ctlr.sel_fcf) {
 253                         BNX2FC_HBA_DBG(lport, "FCF not selected yet!\n");
 254                         kfree_skb(skb);
 255                         return -EINVAL;
 256                 }
 257                 if (fcoe_ctlr_els_send(&interface->ctlr, lport, skb))
 258                         return 0;
 259         }
 260
 261         sof = fr_sof(fp);
 262         eof = fr_eof(fp);
 263
 264         /*
 265          * Snoop the frame header to check if the frame is for
 266          * an offloaded session
 267          */
 268         /*
 269          * tgt_ofld_list access is synchronized using
 270          * both hba mutex and hba lock. Atleast hba mutex or
 271          * hba lock needs to be held for read access.
 272          */
 273
 274         spin_lock_bh(&hba->hba_lock);
 275         tgt = bnx2fc_tgt_lookup(port, ntoh24(fh->fh_d_id));
 276         if (tgt && (test_bit(BNX2FC_FLAG_SESSION_READY, &tgt->flags))) {
 277                 /* This frame is for offloaded session */
 278                 BNX2FC_HBA_DBG(lport, "xmit: Frame is for offloaded session "
 279                                 "port_id = 0x%x\n", ntoh24(fh->fh_d_id));
 280                 spin_unlock_bh(&hba->hba_lock);
 281                 rc = bnx2fc_xmit_l2_frame(tgt, fp);
 282                 if (rc != -ENODEV) {
 283                         kfree_skb(skb);
 284                         return rc;
 285                 }
 286         } else {
 287                 spin_unlock_bh(&hba->hba_lock);
 288         }
 289
 290         elen = sizeof(struct ethhdr);
 291         hlen = sizeof(struct fcoe_hdr);
 292         tlen = sizeof(struct fcoe_crc_eof);
 293         wlen = (skb->len - tlen + sizeof(crc)) / FCOE_WORD_TO_BYTE;
 294
 295         skb->ip_summed = CHECKSUM_NONE;
 296         crc = fcoe_fc_crc(fp);
 297
 298         /* copy port crc and eof to the skb buff */
 299         if (skb_is_nonlinear(skb)) {
 300                 skb_frag_t *frag;
 301                 if (bnx2fc_get_paged_crc_eof(skb, tlen)) {
 302                         kfree_skb(skb);
 303                         return -ENOMEM;
 304                 }
 305                 frag = &skb_shinfo(skb)->frags[skb_shinfo(skb)->nr_frags - 1];
 306                 cp = kmap_atomic(skb_frag_page(frag), KM_SKB_DATA_SOFTIRQ)
 307                                 + frag->page_offset;
 308         } else {
 309                 cp = (struct fcoe_crc_eof *)skb_put(skb, tlen);
 310         }
 311
 312         memset(cp, 0, sizeof(*cp));
 313         cp->fcoe_eof = eof;
 314         cp->fcoe_crc32 = cpu_to_le32(~crc);
 315         if (skb_is_nonlinear(skb)) {
 316                 kunmap_atomic(cp, KM_SKB_DATA_SOFTIRQ);
 317                 cp = NULL;
 318         }
 319
 320         /* adjust skb network/transport offsets to match mac/fcoe/port */
 321         skb_push(skb, elen + hlen);
 322         skb_reset_mac_header(skb);
 323         skb_reset_network_header(skb);
 324         skb->mac_len = elen;
 325         skb->protocol = htons(ETH_P_FCOE);
 326         skb->dev = interface->netdev;
 327
 328         /* fill up mac and fcoe headers */
 329         eh = eth_hdr(skb);
 330         eh->h_proto = htons(ETH_P_FCOE);
 331         if (interface->ctlr.map_dest)
 332                 fc_fcoe_set_mac(eh->h_dest, fh->fh_d_id);
 333         else
 334                 /* insert GW address */
 335                 memcpy(eh->h_dest, interface->ctlr.dest_addr, ETH_ALEN);
 336
 337         if (unlikely(interface->ctlr.flogi_oxid != FC_XID_UNKNOWN))
 338                 memcpy(eh->h_source, interface->ctlr.ctl_src_addr, ETH_ALEN);
 339         else
 340                 memcpy(eh->h_source, port->data_src_addr, ETH_ALEN);
 341
 342         hp = (struct fcoe_hdr *)(eh + 1);
 343         memset(hp, 0, sizeof(*hp));
 344         if (FC_FCOE_VER)
 345                 FC_FCOE_ENCAPS_VER(hp, FC_FCOE_VER);
 346         hp->fcoe_sof = sof;
 347
 348         /* fcoe lso, mss is in max_payload which is non-zero for FCP data */
 349         if (lport->seq_offload && fr_max_payload(fp)) {
 350                 skb_shinfo(skb)->gso_type = SKB_GSO_FCOE;
 351                 skb_shinfo(skb)->gso_size = fr_max_payload(fp);
 352         } else {
 353                 skb_shinfo(skb)->gso_type = 0;
 354                 skb_shinfo(skb)->gso_size = 0;
 355         }
 356
 357         /*update tx stats */
 358         stats = per_cpu_ptr(lport->dev_stats, get_cpu());
 359         stats->TxFrames++;
 360         stats->TxWords += wlen;
 361         put_cpu();
 362
 363         /* send down to lld */
 364         fr_dev(fp) = lport;
 365         if (port->fcoe_pending_queue.qlen)
 366                 fcoe_check_wait_queue(lport, skb);
 367         else if (fcoe_start_io(skb))
 368                 fcoe_check_wait_queue(lport, skb);
 369
 370         return 0;
 371 }
 372
 373 /**
 374  * bnx2fc_rcv - This is bnx2fc's receive function called by NET_RX_SOFTIRQ
 375  *
 376  * @skb:        the receive socket buffer
 377  * @dev:        associated net device
 378  * @ptype:      context
 379  * @olddev:     last device
 380  *
 381  * This function receives the packet and builds FC frame and passes it up
 382  */
 383 static int bnx2fc_rcv(struct sk_buff *skb, struct net_device *dev,
 384                 struct packet_type *ptype, struct net_device *olddev)
 385 {
 386         struct fc_lport *lport;
 387         struct bnx2fc_interface *interface;
 388         struct fc_frame_header *fh;
 389         struct fcoe_rcv_info *fr;
 390         struct fcoe_percpu_s *bg;
 391         unsigned short oxid;
 392
 393         interface = container_of(ptype, struct bnx2fc_interface,
 394                                  fcoe_packet_type);
 395         lport = interface->ctlr.lp;
 396
 397         if (unlikely(lport == NULL)) {
 398                 printk(KERN_ERR PFX "bnx2fc_rcv: lport is NULL\n");
 399                 goto err;
 400         }
 401
 402         if (unlikely(eth_hdr(skb)->h_proto != htons(ETH_P_FCOE))) {
 403                 printk(KERN_ERR PFX "bnx2fc_rcv: Wrong FC type frame\n");
 404                 goto err;
 405         }
 406
 407         /*
 408          * Check for minimum frame length, and make sure required FCoE
 409          * and FC headers are pulled into the linear data area.
 410          */
 411         if (unlikely((skb->len < FCOE_MIN_FRAME) ||
 412             !pskb_may_pull(skb, FCOE_HEADER_LEN)))
 413                 goto err;
 414
 415         skb_set_transport_header(skb, sizeof(struct fcoe_hdr));
 416         fh = (struct fc_frame_header *) skb_transport_header(skb);
 417
 418         oxid = ntohs(fh->fh_ox_id);
 419
 420         fr = fcoe_dev_from_skb(skb);
 421         fr->fr_dev = lport;
 422
 423         bg = &bnx2fc_global;
 424         spin_lock_bh(&bg->fcoe_rx_list.lock);
 425
 426         __skb_queue_tail(&bg->fcoe_rx_list, skb);
 427         if (bg->fcoe_rx_list.qlen == 1)
 428                 wake_up_process(bg->thread);
 429
 430         spin_unlock_bh(&bg->fcoe_rx_list.lock);
 431
 432         return 0;
 433 err:
 434         kfree_skb(skb);
 435         return -1;
 436 }
 437
 438 static int bnx2fc_l2_rcv_thread(void *arg)
 439 {
 440         struct fcoe_percpu_s *bg = arg;
 441         struct sk_buff *skb;
 442
 443         set_user_nice(current, -20);
 444         set_current_state(TASK_INTERRUPTIBLE);
 445         while (!kthread_should_stop()) {
 446                 schedule();
 447                 spin_lock_bh(&bg->fcoe_rx_list.lock);
 448                 while ((skb = __skb_dequeue(&bg->fcoe_rx_list)) != NULL) {
 449                         spin_unlock_bh(&bg->fcoe_rx_list.lock);
 450                         bnx2fc_recv_frame(skb);
 451                         spin_lock_bh(&bg->fcoe_rx_list.lock);
 452                 }
 453                 __set_current_state(TASK_INTERRUPTIBLE);
 454                 spin_unlock_bh(&bg->fcoe_rx_list.lock);
 455         }
 456         __set_current_state(TASK_RUNNING);
 457         return 0;
 458 }
 459
 460
 461 static void bnx2fc_recv_frame(struct sk_buff *skb)
 462 {
 463         u32 fr_len;
 464         struct fc_lport *lport;
 465         struct fcoe_rcv_info *fr;
 466         struct fcoe_dev_stats *stats;
 467         struct fc_frame_header *fh;
 468         struct fcoe_crc_eof crc_eof;
 469         struct fc_frame *fp;
 470         struct fc_lport *vn_port;
 471         struct fcoe_port *port;
 472         u8 *mac = NULL;
 473         u8 *dest_mac = NULL;
 474         struct fcoe_hdr *hp;
 475
 476         fr = fcoe_dev_from_skb(skb);
 477         lport = fr->fr_dev;
 478         if (unlikely(lport == NULL)) {
 479                 printk(KERN_ERR PFX "Invalid lport struct\n");
 480                 kfree_skb(skb);
 481                 return;
 482         }
 483
 484         if (skb_is_nonlinear(skb))
 485                 skb_linearize(skb);
 486         mac = eth_hdr(skb)->h_source;
 487         dest_mac = eth_hdr(skb)->h_dest;
 488
 489         /* Pull the header */
 490         hp = (struct fcoe_hdr *) skb_network_header(skb);
 491         fh = (struct fc_frame_header *) skb_transport_header(skb);
 492         skb_pull(skb, sizeof(struct fcoe_hdr));
 493         fr_len = skb->len - sizeof(struct fcoe_crc_eof);
 494
 495         stats = per_cpu_ptr(lport->dev_stats, get_cpu());
 496         stats->RxFrames++;
 497         stats->RxWords += fr_len / FCOE_WORD_TO_BYTE;
 498
 499         fp = (struct fc_frame *)skb;
 500         fc_frame_init(fp);
 501         fr_dev(fp) = lport;
 502         fr_sof(fp) = hp->fcoe_sof;
 503         if (skb_copy_bits(skb, fr_len, &crc_eof, sizeof(crc_eof))) {
 504                 put_cpu();
 505                 kfree_skb(skb);
 506                 return;
 507         }
 508         fr_eof(fp) = crc_eof.fcoe_eof;
 509         fr_crc(fp) = crc_eof.fcoe_crc32;
 510         if (pskb_trim(skb, fr_len)) {
 511                 put_cpu();
 512                 kfree_skb(skb);
 513                 return;
 514         }
 515
 516         fh = fc_frame_header_get(fp);
 517
 518         vn_port = fc_vport_id_lookup(lport, ntoh24(fh->fh_d_id));
 519         if (vn_port) {
 520                 port = lport_priv(vn_port);
 521                 if (compare_ether_addr(port->data_src_addr, dest_mac)
 522                     != 0) {
 523                         BNX2FC_HBA_DBG(lport, "fpma mismatch\n");
 524                         put_cpu();
 525                         kfree_skb(skb);
 526                         return;
 527                 }
 528         }
 529         if (fh->fh_r_ctl == FC_RCTL_DD_SOL_DATA &&
 530             fh->fh_type == FC_TYPE_FCP) {
 531                 /* Drop FCP data. We dont this in L2 path */
 532                 put_cpu();
 533                 kfree_skb(skb);
 534                 return;
 535         }
 536         if (fh->fh_r_ctl == FC_RCTL_ELS_REQ &&
 537             fh->fh_type == FC_TYPE_ELS) {
 538                 switch (fc_frame_payload_op(fp)) {
 539                 case ELS_LOGO:
 540                         if (ntoh24(fh->fh_s_id) == FC_FID_FLOGI) {
 541                                 /* drop non-FIP LOGO */
 542                                 put_cpu();
 543                                 kfree_skb(skb);
 544                                 return;
 545                         }
 546                         break;
 547                 }
 548         }
 549
 550         if (fh->fh_r_ctl == FC_RCTL_BA_ABTS) {
 551                 /* Drop incoming ABTS */
 552                 put_cpu();
 553                 kfree_skb(skb);
 554                 return;
 555         }
 556
 557         if (le32_to_cpu(fr_crc(fp)) !=
 558                         ~crc32(~0, skb->data, fr_len)) {
 559                 if (stats->InvalidCRCCount < 5)
 560                         printk(KERN_WARNING PFX "dropping frame with "
 561                                "CRC error\n");
 562                 stats->InvalidCRCCount++;
 563                 put_cpu();
 564                 kfree_skb(skb);
 565                 return;
 566         }
 567         put_cpu();
 568         fc_exch_recv(lport, fp);
 569 }
 570
 571 /**
 572  * bnx2fc_percpu_io_thread - thread per cpu for ios
 573  *
 574  * @arg:        ptr to bnx2fc_percpu_info structure
 575  */
 576 int bnx2fc_percpu_io_thread(void *arg)
 577 {
 578         struct bnx2fc_percpu_s *p = arg;
 579         struct bnx2fc_work *work, *tmp;
 580         LIST_HEAD(work_list);
 581
 582         set_user_nice(current, -20);
 583         set_current_state(TASK_INTERRUPTIBLE);
 584         while (!kthread_should_stop()) {
 585                 schedule();
 586                 spin_lock_bh(&p->fp_work_lock);
 587                 while (!list_empty(&p->work_list)) {
 588                         list_splice_init(&p->work_list, &work_list);
 589                         spin_unlock_bh(&p->fp_work_lock);
 590
 591                         list_for_each_entry_safe(work, tmp, &work_list, list) {
 592                                 list_del_init(&work->list);
 593                                 bnx2fc_process_cq_compl(work->tgt, work->wqe);
 594                                 kfree(work);
 595                         }
 596
 597                         spin_lock_bh(&p->fp_work_lock);
 598                 }
 599                 __set_current_state(TASK_INTERRUPTIBLE);
 600                 spin_unlock_bh(&p->fp_work_lock);
 601         }
 602         __set_current_state(TASK_RUNNING);
 603
 604         return 0;
 605 }
 606
 607 static struct fc_host_statistics *bnx2fc_get_host_stats(struct Scsi_Host *shost)
 608 {
 609         struct fc_host_statistics *bnx2fc_stats;
 610         struct fc_lport *lport = shost_priv(shost);
 611         struct fcoe_port *port = lport_priv(lport);
 612         struct bnx2fc_interface *interface = port->priv;
 613         struct bnx2fc_hba *hba = interface->hba;
 614         struct fcoe_statistics_params *fw_stats;
 615         int rc = 0;
 616
 617         fw_stats = (struct fcoe_statistics_params *)hba->stats_buffer;
 618         if (!fw_stats)
 619                 return NULL;
 620
 621         bnx2fc_stats = fc_get_host_stats(shost);
 622
 623         init_completion(&hba->stat_req_done);
 624         if (bnx2fc_send_stat_req(hba))
 625                 return bnx2fc_stats;
 626         rc = wait_for_completion_timeout(&hba->stat_req_done, (2 * HZ));
 627         if (!rc) {
 628                 BNX2FC_HBA_DBG(lport, "FW stat req timed out\n");
 629                 return bnx2fc_stats;
 630         }
 631         bnx2fc_stats->invalid_crc_count += fw_stats->rx_stat2.fc_crc_cnt;
 632         bnx2fc_stats->tx_frames += fw_stats->tx_stat.fcoe_tx_pkt_cnt;
 633         bnx2fc_stats->tx_words += (fw_stats->tx_stat.fcoe_tx_byte_cnt) / 4;
 634         bnx2fc_stats->rx_frames += fw_stats->rx_stat0.fcoe_rx_pkt_cnt;
 635         bnx2fc_stats->rx_words += (fw_stats->rx_stat0.fcoe_rx_byte_cnt) / 4;
 636
 637         bnx2fc_stats->dumped_frames = 0;
 638         bnx2fc_stats->lip_count = 0;
 639         bnx2fc_stats->nos_count = 0;
 640         bnx2fc_stats->loss_of_sync_count = 0;
 641         bnx2fc_stats->loss_of_signal_count = 0;
 642         bnx2fc_stats->prim_seq_protocol_err_count = 0;
 643
 644         return bnx2fc_stats;
 645 }
 646
 647 static int bnx2fc_shost_config(struct fc_lport *lport, struct device *dev)
 648 {
 649         struct fcoe_port *port = lport_priv(lport);
 650         struct bnx2fc_interface *interface = port->priv;
 651         struct Scsi_Host *shost = lport->host;
 652         int rc = 0;
 653
 654         shost->max_cmd_len = BNX2FC_MAX_CMD_LEN;
 655         shost->max_lun = BNX2FC_MAX_LUN;
 656         shost->max_id = BNX2FC_MAX_FCP_TGT;
 657         shost->max_channel = 0;
 658         if (lport->vport)
 659                 shost->transportt = bnx2fc_vport_xport_template;
 660         else
 661                 shost->transportt = bnx2fc_transport_template;
 662
 663         /* Add the new host to SCSI-ml */
 664         rc = scsi_add_host(lport->host, dev);
 665         if (rc) {
 666                 printk(KERN_ERR PFX "Error on scsi_add_host\n");
 667                 return rc;
 668         }
 669         if (!lport->vport)
 670                 fc_host_max_npiv_vports(lport->host) = USHRT_MAX;
 671         sprintf(fc_host_symbolic_name(lport->host), "%s v%s over %s",
 672                 BNX2FC_NAME, BNX2FC_VERSION,
 673                 interface->netdev->name);
 674
 675         return 0;
 676 }
 677
 678 static void bnx2fc_link_speed_update(struct fc_lport *lport)
 679 {
 680         struct fcoe_port *port = lport_priv(lport);
 681         struct bnx2fc_interface *interface = port->priv;
 682         struct net_device *netdev = interface->netdev;
 683         struct ethtool_cmd ecmd;
 684
 685         if (!dev_ethtool_get_settings(netdev, &ecmd)) {
 686                 lport->link_supported_speeds &=
 687                         ~(FC_PORTSPEED_1GBIT | FC_PORTSPEED_10GBIT);
 688                 if (ecmd.supported & (SUPPORTED_1000baseT_Half |
 689                                       SUPPORTED_1000baseT_Full))
 690                         lport->link_supported_speeds |= FC_PORTSPEED_1GBIT;
 691                 if (ecmd.supported & SUPPORTED_10000baseT_Full)
 692                         lport->link_supported_speeds |= FC_PORTSPEED_10GBIT;
 693
 694                 switch (ethtool_cmd_speed(&ecmd)) {
 695                 case SPEED_1000:
 696                         lport->link_speed = FC_PORTSPEED_1GBIT;
 697                         break;
 698                 case SPEED_2500:
 699                         lport->link_speed = FC_PORTSPEED_2GBIT;
 700                         break;
 701                 case SPEED_10000:
 702                         lport->link_speed = FC_PORTSPEED_10GBIT;
 703                         break;
 704                 }
 705         }
 706 }
 707 static int bnx2fc_link_ok(struct fc_lport *lport)
 708 {
 709         struct fcoe_port *port = lport_priv(lport);
 710         struct bnx2fc_interface *interface = port->priv;
 711         struct bnx2fc_hba *hba = interface->hba;
 712         struct net_device *dev = hba->phys_dev;
 713         int rc = 0;
 714
 715         if ((dev->flags & IFF_UP) && netif_carrier_ok(dev))
 716                 clear_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
 717         else {
 718                 set_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
 719                 rc = -1;
 720         }
 721         return rc;
 722 }
 723
 724 /**
 725  * bnx2fc_get_link_state - get network link state
 726  *
 727  * @hba:        adapter instance pointer
 728  *
 729  * updates adapter structure flag based on netdev state
 730  */
 731 void bnx2fc_get_link_state(struct bnx2fc_hba *hba)
 732 {
 733         if (test_bit(__LINK_STATE_NOCARRIER, &hba->phys_dev->state))
 734                 set_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
 735         else
 736                 clear_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
 737 }
 738
 739 static int bnx2fc_net_config(struct fc_lport *lport, struct net_device *netdev)
 740 {
 741         struct bnx2fc_hba *hba;
 742         struct bnx2fc_interface *interface;
 743         struct fcoe_port *port;
 744         u64 wwnn, wwpn;
 745
 746         port = lport_priv(lport);
 747         interface = port->priv;
 748         hba = interface->hba;
 749
 750         /* require support for get_pauseparam ethtool op. */
 751         if (!hba->phys_dev->ethtool_ops ||
 752             !hba->phys_dev->ethtool_ops->get_pauseparam)
 753                 return -EOPNOTSUPP;
 754
 755         if (fc_set_mfs(lport, BNX2FC_MFS))
 756                 return -EINVAL;
 757
 758         skb_queue_head_init(&port->fcoe_pending_queue);
 759         port->fcoe_pending_queue_active = 0;
 760         setup_timer(&port->timer, fcoe_queue_timer, (unsigned long) lport);
 761
 762         bnx2fc_link_speed_update(lport);
 763
 764         if (!lport->vport) {
 765                 if (fcoe_get_wwn(netdev, &wwnn, NETDEV_FCOE_WWNN))
 766                         wwnn = fcoe_wwn_from_mac(interface->ctlr.ctl_src_addr,
 767                                                  1, 0);
 768                 BNX2FC_HBA_DBG(lport, "WWNN = 0x%llx\n", wwnn);
 769                 fc_set_wwnn(lport, wwnn);
 770
 771                 if (fcoe_get_wwn(netdev, &wwpn, NETDEV_FCOE_WWPN))
 772                         wwpn = fcoe_wwn_from_mac(interface->ctlr.ctl_src_addr,
 773                                                  2, 0);
 774
 775                 BNX2FC_HBA_DBG(lport, "WWPN = 0x%llx\n", wwpn);
 776                 fc_set_wwpn(lport, wwpn);
 777         }
 778
 779         return 0;
 780 }
 781
 782 static void bnx2fc_destroy_timer(unsigned long data)
 783 {
 784         struct bnx2fc_hba *hba = (struct bnx2fc_hba *)data;
 785
 786         printk(KERN_ERR PFX "ERROR:bnx2fc_destroy_timer - "
 787                "Destroy compl not received!!\n");
 788         set_bit(BNX2FC_FLAG_DESTROY_CMPL, &hba->flags);
 789         wake_up_interruptible(&hba->destroy_wait);
 790 }
 791
 792 /**
 793  * bnx2fc_indicate_netevent - Generic netdev event handler
 794  *
 795  * @context:    adapter structure pointer
 796  * @event:      event type
 797  * @vlan_id:    vlan id - associated vlan id with this event
 798  *
 799  * Handles NETDEV_UP, NETDEV_DOWN, NETDEV_GOING_DOWN,NETDEV_CHANGE and
 800  * NETDEV_CHANGE_MTU events. Handle NETDEV_UNREGISTER only for vlans.
 801  */
 802 static void bnx2fc_indicate_netevent(void *context, unsigned long event,
 803                                      u16 vlan_id)
 804 {
 805         struct bnx2fc_hba *hba = (struct bnx2fc_hba *)context;
 806         struct fc_lport *lport;
 807         struct fc_lport *vport;
 808         struct bnx2fc_interface *interface, *tmp;
 809         int wait_for_upload = 0;
 810         u32 link_possible = 1;
 811
 812         if (vlan_id != 0 && event != NETDEV_UNREGISTER)
 813                 return;
 814
 815         switch (event) {
 816         case NETDEV_UP:
 817                 if (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state))
 818                         printk(KERN_ERR "indicate_netevent: "\
 819                                         "hba is not UP!!\n");
 820                 break;
 821
 822         case NETDEV_DOWN:
 823                 clear_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state);
 824                 clear_bit(ADAPTER_STATE_UP, &hba->adapter_state);
 825                 link_possible = 0;
 826                 break;
 827
 828         case NETDEV_GOING_DOWN:
 829                 set_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state);
 830                 link_possible = 0;
 831                 break;
 832
 833         case NETDEV_CHANGE:
 834                 break;
 835
 836         case NETDEV_UNREGISTER:
 837                 if (!vlan_id)
 838                         return;
 839                 mutex_lock(&bnx2fc_dev_lock);
 840                 list_for_each_entry_safe(interface, tmp, &if_list, list) {
 841                         if (interface->hba != hba)
 842                                 continue;
 843                         __bnx2fc_destroy(interface);
 844                 }
 845                 mutex_unlock(&bnx2fc_dev_lock);
 846                 return;
 847
 848         default:
 849                 printk(KERN_ERR PFX "Unkonwn netevent %ld", event);
 850                 return;
 851         }
 852
 853         mutex_lock(&bnx2fc_dev_lock);
 854         list_for_each_entry(interface, &if_list, list) {
 855
 856                 if (interface->hba != hba)
 857                         continue;
 858
 859                 lport = interface->ctlr.lp;
 860                 BNX2FC_HBA_DBG(lport, "netevent handler - event=%s %ld\n",
 861                                 interface->netdev->name, event);
 862
 863                 bnx2fc_link_speed_update(lport);
 864
 865                 if (link_possible && !bnx2fc_link_ok(lport)) {
 866                         printk(KERN_ERR "indicate_netevent: ctlr_link_up\n");
 867                         fcoe_ctlr_link_up(&interface->ctlr);
 868                 } else if (fcoe_ctlr_link_down(&interface->ctlr)) {
 869                         mutex_lock(&lport->lp_mutex);
 870                         list_for_each_entry(vport, &lport->vports, list)
 871                                 fc_host_port_type(vport->host) =
 872                                                         FC_PORTTYPE_UNKNOWN;
 873                         mutex_unlock(&lport->lp_mutex);
 874                         fc_host_port_type(lport->host) = FC_PORTTYPE_UNKNOWN;
 875                         per_cpu_ptr(lport->dev_stats,
 876                                     get_cpu())->LinkFailureCount++;
 877                         put_cpu();
 878                         fcoe_clean_pending_queue(lport);
 879                         wait_for_upload = 1;
 880                 }
 881         }
 882         mutex_unlock(&bnx2fc_dev_lock);
 883
 884         if (wait_for_upload) {
 885                 clear_bit(ADAPTER_STATE_READY, &hba->adapter_state);
 886                 init_waitqueue_head(&hba->shutdown_wait);
 887                 BNX2FC_MISC_DBG("indicate_netevent "
 888                                 "num_ofld_sess = %d\n",
 889                                 hba->num_ofld_sess);
 890                 hba->wait_for_link_down = 1;
 891                 wait_event_interruptible(hba->shutdown_wait,
 892                                          (hba->num_ofld_sess == 0));
 893                 BNX2FC_MISC_DBG("wakeup - num_ofld_sess = %d\n",
 894                                 hba->num_ofld_sess);
 895                 hba->wait_for_link_down = 0;
 896
 897                 if (signal_pending(current))
 898                         flush_signals(current);
 899         }
 900 }
 901
 902 static int bnx2fc_libfc_config(struct fc_lport *lport)
 903 {
 904
 905         /* Set the function pointers set by bnx2fc driver */
 906         memcpy(&lport->tt, &bnx2fc_libfc_fcn_templ,
 907                 sizeof(struct libfc_function_template));
 908         fc_elsct_init(lport);
 909         fc_exch_init(lport);
 910         fc_rport_init(lport);
 911         fc_disc_init(lport);
 912         return 0;
 913 }
 914
 915 static int bnx2fc_em_config(struct fc_lport *lport)
 916 {
 917         if (!fc_exch_mgr_alloc(lport, FC_CLASS_3, FCOE_MIN_XID,
 918                                 FCOE_MAX_XID, NULL)) {
 919                 printk(KERN_ERR PFX "em_config:fc_exch_mgr_alloc failed\n");
 920                 return -ENOMEM;
 921         }
 922
 923         return 0;
 924 }
 925
 926 static int bnx2fc_lport_config(struct fc_lport *lport)
 927 {
 928         lport->link_up = 0;
 929         lport->qfull = 0;
 930         lport->max_retry_count = 3;
 931         lport->max_rport_retry_count = 3;
 932         lport->e_d_tov = 2 * 1000;
 933         lport->r_a_tov = 10 * 1000;
 934
 935         lport->service_params = (FCP_SPPF_INIT_FCN | FCP_SPPF_RD_XRDY_DIS |
 936                                 FCP_SPPF_RETRY | FCP_SPPF_CONF_COMPL);
 937         lport->does_npiv = 1;
 938
 939         memset(&lport->rnid_gen, 0, sizeof(struct fc_els_rnid_gen));
 940         lport->rnid_gen.rnid_atype = BNX2FC_RNID_HBA;
 941
 942         /* alloc stats structure */
 943         if (fc_lport_init_stats(lport))
 944                 return -ENOMEM;
 945
 946         /* Finish fc_lport configuration */
 947         fc_lport_config(lport);
 948
 949         return 0;
 950 }
 951
 952 /**
 953  * bnx2fc_fip_recv - handle a received FIP frame.
 954  *
 955  * @skb: the received skb
 956  * @dev: associated &net_device
 957  * @ptype: the &packet_type structure which was used to register this handler.
 958  * @orig_dev: original receive &net_device, in case @ dev is a bond.
 959  *
 960  * Returns: 0 for success
 961  */
 962 static int bnx2fc_fip_recv(struct sk_buff *skb, struct net_device *dev,
 963                            struct packet_type *ptype,
 964                            struct net_device *orig_dev)
 965 {
 966         struct bnx2fc_interface *interface;
 967         interface = container_of(ptype, struct bnx2fc_interface,
 968                                  fip_packet_type);
 969         fcoe_ctlr_recv(&interface->ctlr, skb);
 970         return 0;
 971 }
 972
 973 /**
 974  * bnx2fc_update_src_mac - Update Ethernet MAC filters.
 975  *
 976  * @fip: FCoE controller.
 977  * @old: Unicast MAC address to delete if the MAC is non-zero.
 978  * @new: Unicast MAC address to add.
 979  *
 980  * Remove any previously-set unicast MAC filter.
 981  * Add secondary FCoE MAC address filter for our OUI.
 982  */
 983 static void bnx2fc_update_src_mac(struct fc_lport *lport, u8 *addr)
 984 {
 985         struct fcoe_port *port = lport_priv(lport);
 986
 987         memcpy(port->data_src_addr, addr, ETH_ALEN);
 988 }
 989
 990 /**
 991  * bnx2fc_get_src_mac - return the ethernet source address for an lport
 992  *
 993  * @lport: libfc port
 994  */
 995 static u8 *bnx2fc_get_src_mac(struct fc_lport *lport)
 996 {
 997         struct fcoe_port *port;
 998
 999         port = (struct fcoe_port *)lport_priv(lport);
1000         return port->data_src_addr;
1001 }
1002
1003 /**
1004  * bnx2fc_fip_send - send an Ethernet-encapsulated FIP frame.
1005  *
1006  * @fip: FCoE controller.
1007  * @skb: FIP Packet.
1008  */
1009 static void bnx2fc_fip_send(struct fcoe_ctlr *fip, struct sk_buff *skb)
1010 {
1011         skb->dev = bnx2fc_from_ctlr(fip)->netdev;
1012         dev_queue_xmit(skb);
1013 }
1014
1015 static int bnx2fc_vport_create(struct fc_vport *vport, bool disabled)
1016 {
1017         struct Scsi_Host *shost = vport_to_shost(vport);
1018         struct fc_lport *n_port = shost_priv(shost);
1019         struct fcoe_port *port = lport_priv(n_port);
1020         struct bnx2fc_interface *interface = port->priv;
1021         struct net_device *netdev = interface->netdev;
1022         struct fc_lport *vn_port;
1023         int rc;
1024         char buf[32];
1025
1026         rc = fcoe_validate_vport_create(vport);
1027         if (rc) {
1028                 fcoe_wwn_to_str(vport->port_name, buf, sizeof(buf));
1029                 printk(KERN_ERR PFX "Failed to create vport, "
1030                        "WWPN (0x%s) already exists\n",
1031                        buf);
1032                 return rc;
1033         }
1034
1035         if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &interface->hba->flags)) {
1036                 printk(KERN_ERR PFX "vn ports cannot be created on"
1037                         "this interface\n");
1038                 return -EIO;
1039         }
1040         mutex_lock(&bnx2fc_dev_lock);
1041         vn_port = bnx2fc_if_create(interface, &vport->dev, 1);
1042         mutex_unlock(&bnx2fc_dev_lock);
1043
1044         if (IS_ERR(vn_port)) {
1045                 printk(KERN_ERR PFX "bnx2fc_vport_create (%s) failed\n",
1046                         netdev->name);
1047                 return -EIO;
1048         }
1049
1050         if (disabled) {
1051                 fc_vport_set_state(vport, FC_VPORT_DISABLED);
1052         } else {
1053                 vn_port->boot_time = jiffies;
1054                 fc_lport_init(vn_port);
1055                 fc_fabric_login(vn_port);
1056                 fc_vport_setlink(vn_port);
1057         }
1058         return 0;
1059 }
1060
1061 static void bnx2fc_free_vport(struct bnx2fc_hba *hba, struct fc_lport *lport)
1062 {
1063         struct bnx2fc_lport *blport, *tmp;
1064
1065         spin_lock_bh(&hba->hba_lock);
1066         list_for_each_entry_safe(blport, tmp, &hba->vports, list) {
1067                 if (blport->lport == lport) {
1068                         list_del(&blport->list);
1069                         kfree(blport);
1070                 }
1071         }
1072         spin_unlock_bh(&hba->hba_lock);
1073 }
1074
1075 static int bnx2fc_vport_destroy(struct fc_vport *vport)
1076 {
1077         struct Scsi_Host *shost = vport_to_shost(vport);
1078         struct fc_lport *n_port = shost_priv(shost);
1079         struct fc_lport *vn_port = vport->dd_data;
1080         struct fcoe_port *port = lport_priv(vn_port);
1081         struct bnx2fc_interface *interface = port->priv;
1082         struct fc_lport *v_port;
1083         bool found = false;
1084
1085         mutex_lock(&n_port->lp_mutex);
1086         list_for_each_entry(v_port, &n_port->vports, list)
1087                 if (v_port->vport == vport) {
1088                         found = true;
1089                         break;
1090                 }
1091
1092         if (!found) {
1093                 mutex_unlock(&n_port->lp_mutex);
1094                 return -ENOENT;
1095         }
1096         list_del(&vn_port->list);
1097         mutex_unlock(&n_port->lp_mutex);
1098         bnx2fc_free_vport(interface->hba, port->lport);
1099         bnx2fc_port_shutdown(port->lport);
1100         bnx2fc_interface_put(interface);
1101         queue_work(bnx2fc_wq, &port->destroy_work);
1102         return 0;
1103 }
1104
1105 static int bnx2fc_vport_disable(struct fc_vport *vport, bool disable)
1106 {
1107         struct fc_lport *lport = vport->dd_data;
1108
1109         if (disable) {
1110                 fc_vport_set_state(vport, FC_VPORT_DISABLED);
1111                 fc_fabric_logoff(lport);
1112         } else {
1113                 lport->boot_time = jiffies;
1114                 fc_fabric_login(lport);
1115                 fc_vport_setlink(lport);
1116         }
1117         return 0;
1118 }
1119
1120
1121 static int bnx2fc_interface_setup(struct bnx2fc_interface *interface)
1122 {
1123         struct net_device *netdev = interface->netdev;
1124         struct net_device *physdev = interface->hba->phys_dev;
1125         struct netdev_hw_addr *ha;
1126         int sel_san_mac = 0;
1127
1128         /* setup Source MAC Address */
1129         rcu_read_lock();
1130         for_each_dev_addr(physdev, ha) {
1131                 BNX2FC_MISC_DBG("net_config: ha->type = %d, fip_mac = ",
1132                                 ha->type);
1133                 printk(KERN_INFO "%2x:%2x:%2x:%2x:%2x:%2x\n", ha->addr[0],
1134                                 ha->addr[1], ha->addr[2], ha->addr[3],
1135                                 ha->addr[4], ha->addr[5]);
1136
1137                 if ((ha->type == NETDEV_HW_ADDR_T_SAN) &&
1138                     (is_valid_ether_addr(ha->addr))) {
1139                         memcpy(interface->ctlr.ctl_src_addr, ha->addr,
1140                                ETH_ALEN);
1141                         sel_san_mac = 1;
1142                         BNX2FC_MISC_DBG("Found SAN MAC\n");
1143                 }
1144         }
1145         rcu_read_unlock();
1146
1147         if (!sel_san_mac)
1148                 return -ENODEV;
1149
1150         interface->fip_packet_type.func = bnx2fc_fip_recv;
1151         interface->fip_packet_type.type = htons(ETH_P_FIP);
1152         interface->fip_packet_type.dev = netdev;
1153         dev_add_pack(&interface->fip_packet_type);
1154
1155         interface->fcoe_packet_type.func = bnx2fc_rcv;
1156         interface->fcoe_packet_type.type = __constant_htons(ETH_P_FCOE);
1157         interface->fcoe_packet_type.dev = netdev;
1158         dev_add_pack(&interface->fcoe_packet_type);
1159
1160         return 0;
1161 }
1162
1163 static int bnx2fc_attach_transport(void)
1164 {
1165         bnx2fc_transport_template =
1166                 fc_attach_transport(&bnx2fc_transport_function);
1167
1168         if (bnx2fc_transport_template == NULL) {
1169                 printk(KERN_ERR PFX "Failed to attach FC transport\n");
1170                 return -ENODEV;
1171         }
1172
1173         bnx2fc_vport_xport_template =
1174                 fc_attach_transport(&bnx2fc_vport_xport_function);
1175         if (bnx2fc_vport_xport_template == NULL) {
1176                 printk(KERN_ERR PFX
1177                        "Failed to attach FC transport for vport\n");
1178                 fc_release_transport(bnx2fc_transport_template);
1179                 bnx2fc_transport_template = NULL;
1180                 return -ENODEV;
1181         }
1182         return 0;
1183 }
1184 static void bnx2fc_release_transport(void)
1185 {
1186         fc_release_transport(bnx2fc_transport_template);
1187         fc_release_transport(bnx2fc_vport_xport_template);
1188         bnx2fc_transport_template = NULL;
1189         bnx2fc_vport_xport_template = NULL;
1190 }
1191
1192 static void bnx2fc_interface_release(struct kref *kref)
1193 {
1194         struct bnx2fc_interface *interface;
1195         struct net_device *netdev;
1196
1197         interface = container_of(kref, struct bnx2fc_interface, kref);
1198         BNX2FC_MISC_DBG("Interface is being released\n");
1199
1200         netdev = interface->netdev;
1201
1202         /* tear-down FIP controller */
1203         if (test_and_clear_bit(BNX2FC_CTLR_INIT_DONE, &interface->if_flags))
1204                 fcoe_ctlr_destroy(&interface->ctlr);
1205
1206         kfree(interface);
1207
1208         dev_put(netdev);
1209         module_put(THIS_MODULE);
1210 }
1211
1212 static inline void bnx2fc_interface_get(struct bnx2fc_interface *interface)
1213 {
1214         kref_get(&interface->kref);
1215 }
1216
1217 static inline void bnx2fc_interface_put(struct bnx2fc_interface *interface)
1218 {
1219         kref_put(&interface->kref, bnx2fc_interface_release);
1220 }
1221 static void bnx2fc_hba_destroy(struct bnx2fc_hba *hba)
1222 {
1223         /* Free the command manager */
1224         if (hba->cmd_mgr) {
1225                 bnx2fc_cmd_mgr_free(hba->cmd_mgr);
1226                 hba->cmd_mgr = NULL;
1227         }
1228         kfree(hba->tgt_ofld_list);
1229         bnx2fc_unbind_pcidev(hba);
1230         kfree(hba);
1231 }
1232
1233 /**
1234  * bnx2fc_hba_create - create a new bnx2fc hba
1235  *
1236  * @cnic:       pointer to cnic device
1237  *
1238  * Creates a new FCoE hba on the given device.
1239  *
1240  */
1241 static struct bnx2fc_hba *bnx2fc_hba_create(struct cnic_dev *cnic)
1242 {
1243         struct bnx2fc_hba *hba;
1244         int rc;
1245
1246         hba = kzalloc(sizeof(*hba), GFP_KERNEL);
1247         if (!hba) {
1248                 printk(KERN_ERR PFX "Unable to allocate hba structure\n");
1249                 return NULL;
1250         }
1251         spin_lock_init(&hba->hba_lock);
1252         mutex_init(&hba->hba_mutex);
1253
1254         hba->cnic = cnic;
1255         rc = bnx2fc_bind_pcidev(hba);
1256         if (rc) {
1257                 printk(KERN_ERR PFX "create_adapter:  bind error\n");
1258                 goto bind_err;
1259         }
1260         hba->phys_dev = cnic->netdev;
1261         hba->next_conn_id = 0;
1262
1263         hba->tgt_ofld_list =
1264                 kzalloc(sizeof(struct bnx2fc_rport *) * BNX2FC_NUM_MAX_SESS,
1265                         GFP_KERNEL);
1266         if (!hba->tgt_ofld_list) {
1267                 printk(KERN_ERR PFX "Unable to allocate tgt offload list\n");
1268                 goto tgtofld_err;
1269         }
1270
1271         hba->num_ofld_sess = 0;
1272
1273         hba->cmd_mgr = bnx2fc_cmd_mgr_alloc(hba, BNX2FC_MIN_XID,
1274                                                 BNX2FC_MAX_XID);
1275         if (!hba->cmd_mgr) {
1276                 printk(KERN_ERR PFX "em_config:bnx2fc_cmd_mgr_alloc failed\n");
1277                 goto cmgr_err;
1278         }
1279
1280         init_waitqueue_head(&hba->shutdown_wait);
1281         init_waitqueue_head(&hba->destroy_wait);
1282         INIT_LIST_HEAD(&hba->vports);
1283
1284         return hba;
1285
1286 cmgr_err:
1287         kfree(hba->tgt_ofld_list);
1288 tgtofld_err:
1289         bnx2fc_unbind_pcidev(hba);
1290 bind_err:
1291         kfree(hba);
1292         return NULL;
1293 }
1294
1295 struct bnx2fc_interface *bnx2fc_interface_create(struct bnx2fc_hba *hba,
1296                                       struct net_device *netdev,
1297                                       enum fip_state fip_mode)
1298 {
1299         struct bnx2fc_interface *interface;
1300         int rc = 0;
1301
1302         interface = kzalloc(sizeof(*interface), GFP_KERNEL);
1303         if (!interface) {
1304                 printk(KERN_ERR PFX "Unable to allocate interface structure\n");
1305                 return NULL;
1306         }
1307         dev_hold(netdev);
1308         kref_init(&interface->kref);
1309         interface->hba = hba;
1310         interface->netdev = netdev;
1311
1312         /* Initialize FIP */
1313         fcoe_ctlr_init(&interface->ctlr, fip_mode);
1314         interface->ctlr.send = bnx2fc_fip_send;
1315         interface->ctlr.update_mac = bnx2fc_update_src_mac;
1316         interface->ctlr.get_src_addr = bnx2fc_get_src_mac;
1317         set_bit(BNX2FC_CTLR_INIT_DONE, &interface->if_flags);
1318
1319         rc = bnx2fc_interface_setup(interface);
1320         if (!rc)
1321                 return interface;
1322
1323         fcoe_ctlr_destroy(&interface->ctlr);
1324         dev_put(netdev);
1325         kfree(interface);
1326         return NULL;
1327 }
1328
1329 /**
1330  * bnx2fc_if_create - Create FCoE instance on a given interface
1331  *
1332  * @interface:  FCoE interface to create a local port on
1333  * @parent:     Device pointer to be the parent in sysfs for the SCSI host
1334  * @npiv:       Indicates if the port is vport or not
1335  *
1336  * Creates a fc_lport instance and a Scsi_Host instance and configure them.
1337  *
1338  * Returns:     Allocated fc_lport or an error pointer
1339  */
1340 static struct fc_lport *bnx2fc_if_create(struct bnx2fc_interface *interface,
1341                                   struct device *parent, int npiv)
1342 {
1343         struct fc_lport         *lport, *n_port;
1344         struct fcoe_port        *port;
1345         struct Scsi_Host        *shost;
1346         struct fc_vport         *vport = dev_to_vport(parent);
1347         struct bnx2fc_lport     *blport;
1348         struct bnx2fc_hba       *hba;
1349         int                     rc = 0;
1350
1351         blport = kzalloc(sizeof(struct bnx2fc_lport), GFP_KERNEL);
1352         if (!blport) {
1353                 BNX2FC_HBA_DBG(interface->ctlr.lp, "Unable to alloc blport\n");
1354                 return NULL;
1355         }
1356
1357         /* Allocate Scsi_Host structure */
1358         if (!npiv)
1359                 lport = libfc_host_alloc(&bnx2fc_shost_template, sizeof(*port));
1360         else
1361                 lport = libfc_vport_create(vport, sizeof(*port));
1362
1363         if (!lport) {
1364                 printk(KERN_ERR PFX "could not allocate scsi host structure\n");
1365                 goto free_blport;
1366         }
1367         shost = lport->host;
1368         port = lport_priv(lport);
1369         port->lport = lport;
1370         port->priv = interface;
1371         INIT_WORK(&port->destroy_work, bnx2fc_destroy_work);
1372
1373         /* Configure fcoe_port */
1374         rc = bnx2fc_lport_config(lport);
1375         if (rc)
1376                 goto lp_config_err;
1377
1378         if (npiv) {
1379                 printk(KERN_ERR PFX "Setting vport names, 0x%llX 0x%llX\n",
1380                         vport->node_name, vport->port_name);
1381                 fc_set_wwnn(lport, vport->node_name);
1382                 fc_set_wwpn(lport, vport->port_name);
1383         }
1384         /* Configure netdev and networking properties of the lport */
1385         rc = bnx2fc_net_config(lport, interface->netdev);
1386         if (rc) {
1387                 printk(KERN_ERR PFX "Error on bnx2fc_net_config\n");
1388                 goto lp_config_err;
1389         }
1390
1391         rc = bnx2fc_shost_config(lport, parent);
1392         if (rc) {
1393                 printk(KERN_ERR PFX "Couldnt configure shost for %s\n",
1394                         interface->netdev->name);
1395                 goto lp_config_err;
1396         }
1397
1398         /* Initialize the libfc library */
1399         rc = bnx2fc_libfc_config(lport);
1400         if (rc) {
1401                 printk(KERN_ERR PFX "Couldnt configure libfc\n");
1402                 goto shost_err;
1403         }
1404         fc_host_port_type(lport->host) = FC_PORTTYPE_UNKNOWN;
1405
1406         /* Allocate exchange manager */
1407         if (!npiv)
1408                 rc = bnx2fc_em_config(lport);
1409         else {
1410                 shost = vport_to_shost(vport);
1411                 n_port = shost_priv(shost);
1412                 rc = fc_exch_mgr_list_clone(n_port, lport);
1413         }
1414
1415         if (rc) {
1416                 printk(KERN_ERR PFX "Error on bnx2fc_em_config\n");
1417                 goto shost_err;
1418         }
1419
1420         bnx2fc_interface_get(interface);
1421
1422         hba = interface->hba;
1423         spin_lock_bh(&hba->hba_lock);
1424         blport->lport = lport;
1425         list_add_tail(&blport->list, &hba->vports);
1426         spin_unlock_bh(&hba->hba_lock);
1427
1428         return lport;
1429
1430 shost_err:
1431         scsi_remove_host(shost);
1432 lp_config_err:
1433         scsi_host_put(lport->host);
1434 free_blport:
1435         kfree(blport);
1436         return NULL;
1437 }
1438
1439 static void bnx2fc_interface_cleanup(struct bnx2fc_interface *interface)
1440 {
1441         struct fc_lport *lport = interface->ctlr.lp;
1442         struct fcoe_port *port = lport_priv(lport);
1443         struct bnx2fc_hba *hba = interface->hba;
1444
1445         /* Stop the transmit retry timer */
1446         del_timer_sync(&port->timer);
1447
1448         /* Free existing transmit skbs */
1449         fcoe_clean_pending_queue(lport);
1450
1451         /* Dont listen for Ethernet packets anymore */
1452         __dev_remove_pack(&interface->fcoe_packet_type);
1453         __dev_remove_pack(&interface->fip_packet_type);
1454         synchronize_net();
1455
1456         bnx2fc_free_vport(hba, lport);
1457 }
1458
1459 static void bnx2fc_if_destroy(struct fc_lport *lport)
1460 {
1461
1462         /* Free queued packets for the receive thread */
1463         bnx2fc_clean_rx_queue(lport);
1464
1465         /* Detach from scsi-ml */
1466         fc_remove_host(lport->host);
1467         scsi_remove_host(lport->host);
1468
1469         /*
1470          * Note that only the physical lport will have the exchange manager.
1471          * for vports, this function is NOP
1472          */
1473         fc_exch_mgr_free(lport);
1474
1475         /* Free memory used by statistical counters */
1476         fc_lport_free_stats(lport);
1477
1478         /* Release Scsi_Host */
1479         scsi_host_put(lport->host);
1480 }
1481
1482 static void __bnx2fc_destroy(struct bnx2fc_interface *interface)
1483 {
1484         struct fc_lport *lport = interface->ctlr.lp;
1485
1486         bnx2fc_interface_cleanup(interface);
1487         bnx2fc_stop(interface);
1488         list_del(&interface->list);
1489         lport = interface->ctlr.lp;
1490         bnx2fc_interface_put(interface);
1491         bnx2fc_if_destroy(lport);
1492 }
1493
1494 /**
1495  * bnx2fc_destroy - Destroy a bnx2fc FCoE interface
1496  *
1497  * @buffer: The name of the Ethernet interface to be destroyed
1498  * @kp:     The associated kernel parameter
1499  *
1500  * Called from sysfs.
1501  *
1502  * Returns: 0 for success
1503  */
1504 static int bnx2fc_destroy(struct net_device *netdev)
1505 {
1506         struct bnx2fc_interface *interface = NULL;
1507         int rc = 0;
1508
1509         rtnl_lock();
1510         mutex_lock(&bnx2fc_dev_lock);
1511
1512         interface = bnx2fc_interface_lookup(netdev);
1513         if (!interface || !interface->ctlr.lp) {
1514                 rc = -ENODEV;
1515                 printk(KERN_ERR PFX "bnx2fc_destroy: interface or lport not found\n");
1516                 goto netdev_err;
1517         }
1518
1519
1520         destroy_workqueue(interface->timer_work_queue);
1521         __bnx2fc_destroy(interface);
1522
1523 netdev_err:
1524         mutex_unlock(&bnx2fc_dev_lock);
1525         rtnl_unlock();
1526         return rc;
1527 }
1528
1529 static void bnx2fc_destroy_work(struct work_struct *work)
1530 {
1531         struct fcoe_port *port;
1532         struct fc_lport *lport;
1533
1534         port = container_of(work, struct fcoe_port, destroy_work);
1535         lport = port->lport;
1536
1537         BNX2FC_HBA_DBG(lport, "Entered bnx2fc_destroy_work\n");
1538
1539         rtnl_lock();
1540         mutex_lock(&bnx2fc_dev_lock);
1541         bnx2fc_if_destroy(lport);
1542         mutex_unlock(&bnx2fc_dev_lock);
1543         rtnl_unlock();
1544 }
1545
1546 static void bnx2fc_unbind_adapter_devices(struct bnx2fc_hba *hba)
1547 {
1548         bnx2fc_free_fw_resc(hba);
1549         bnx2fc_free_task_ctx(hba);
1550 }
1551
1552 /**
1553  * bnx2fc_bind_adapter_devices - binds bnx2fc adapter with the associated
1554  *                      pci structure
1555  *
1556  * @hba:                Adapter instance
1557  */
1558 static int bnx2fc_bind_adapter_devices(struct bnx2fc_hba *hba)
1559 {
1560         if (bnx2fc_setup_task_ctx(hba))
1561                 goto mem_err;
1562
1563         if (bnx2fc_setup_fw_resc(hba))
1564                 goto mem_err;
1565
1566         return 0;
1567 mem_err:
1568         bnx2fc_unbind_adapter_devices(hba);
1569         return -ENOMEM;
1570 }
1571
1572 static int bnx2fc_bind_pcidev(struct bnx2fc_hba *hba)
1573 {
1574         struct cnic_dev *cnic;
1575
1576         if (!hba->cnic) {
1577                 printk(KERN_ERR PFX "cnic is NULL\n");
1578                 return -ENODEV;
1579         }
1580         cnic = hba->cnic;
1581         hba->pcidev = cnic->pcidev;
1582         if (hba->pcidev)
1583                 pci_dev_get(hba->pcidev);
1584
1585         return 0;
1586 }
1587
1588 static void bnx2fc_unbind_pcidev(struct bnx2fc_hba *hba)
1589 {
1590         if (hba->pcidev)
1591                 pci_dev_put(hba->pcidev);
1592         hba->pcidev = NULL;
1593 }
1594
1595
1596
1597 /**
1598  * bnx2fc_ulp_start - cnic callback to initialize & start adapter instance
1599  *
1600  * @handle:     transport handle pointing to adapter struture
1601  *
1602  * This function maps adapter structure to pcidev structure and initiates
1603  *      firmware handshake to enable/initialize on-chip FCoE components.
1604  *      This bnx2fc - cnic interface api callback is used after following
1605  *      conditions are met -
1606  *      a) underlying network interface is up (marked by event NETDEV_UP
1607  *              from netdev
1608  *      b) bnx2fc adatper structure is registered.
1609  */
1610 static void bnx2fc_ulp_start(void *handle)
1611 {
1612         struct bnx2fc_hba *hba = handle;
1613         struct bnx2fc_interface *interface;
1614         struct fc_lport *lport;
1615
1616         mutex_lock(&bnx2fc_dev_lock);
1617
1618         if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags))
1619                 bnx2fc_fw_init(hba);
1620
1621         BNX2FC_MISC_DBG("bnx2fc started.\n");
1622
1623         list_for_each_entry(interface, &if_list, list) {
1624                 if (interface->hba == hba) {
1625                         lport = interface->ctlr.lp;
1626                         /* Kick off Fabric discovery*/
1627                         printk(KERN_ERR PFX "ulp_init: start discovery\n");
1628                         lport->tt.frame_send = bnx2fc_xmit;
1629                         bnx2fc_start_disc(interface);
1630                 }
1631         }
1632
1633         mutex_unlock(&bnx2fc_dev_lock);
1634 }
1635
1636 static void bnx2fc_port_shutdown(struct fc_lport *lport)
1637 {
1638         BNX2FC_MISC_DBG("Entered %s\n", __func__);
1639         fc_fabric_logoff(lport);
1640         fc_lport_destroy(lport);
1641 }
1642
1643 static void bnx2fc_stop(struct bnx2fc_interface *interface)
1644 {
1645         struct fc_lport *lport;
1646         struct fc_lport *vport;
1647
1648         if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &interface->hba->flags))
1649                 return;
1650
1651         lport = interface->ctlr.lp;
1652         bnx2fc_port_shutdown(lport);
1653
1654         mutex_lock(&lport->lp_mutex);
1655         list_for_each_entry(vport, &lport->vports, list)
1656                 fc_host_port_type(vport->host) =
1657                                         FC_PORTTYPE_UNKNOWN;
1658         mutex_unlock(&lport->lp_mutex);
1659         fc_host_port_type(lport->host) = FC_PORTTYPE_UNKNOWN;
1660         fcoe_ctlr_link_down(&interface->ctlr);
1661         fcoe_clean_pending_queue(lport);
1662 }
1663
1664 static int bnx2fc_fw_init(struct bnx2fc_hba *hba)
1665 {
1666 #define BNX2FC_INIT_POLL_TIME           (1000 / HZ)
1667         int rc = -1;
1668         int i = HZ;
1669
1670         rc = bnx2fc_bind_adapter_devices(hba);
1671         if (rc) {
1672                 printk(KERN_ALERT PFX
1673                         "bnx2fc_bind_adapter_devices failed - rc = %d\n", rc);
1674                 goto err_out;
1675         }
1676
1677         rc = bnx2fc_send_fw_fcoe_init_msg(hba);
1678         if (rc) {
1679                 printk(KERN_ALERT PFX
1680                         "bnx2fc_send_fw_fcoe_init_msg failed - rc = %d\n", rc);
1681                 goto err_unbind;
1682         }
1683
1684         /*
1685          * Wait until the adapter init message is complete, and adapter
1686          * state is UP.
1687          */
1688         while (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state) && i--)
1689                 msleep(BNX2FC_INIT_POLL_TIME);
1690
1691         if (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state)) {
1692                 printk(KERN_ERR PFX "bnx2fc_start: %s failed to initialize.  "
1693                                 "Ignoring...\n",
1694                                 hba->cnic->netdev->name);
1695                 rc = -1;
1696                 goto err_unbind;
1697         }
1698
1699
1700         set_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags);
1701         return 0;
1702
1703 err_unbind:
1704         bnx2fc_unbind_adapter_devices(hba);
1705 err_out:
1706         return rc;
1707 }
1708
1709 static void bnx2fc_fw_destroy(struct bnx2fc_hba *hba)
1710 {
1711         if (test_and_clear_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags)) {
1712                 if (bnx2fc_send_fw_fcoe_destroy_msg(hba) == 0) {
1713                         init_timer(&hba->destroy_timer);
1714                         hba->destroy_timer.expires = BNX2FC_FW_TIMEOUT +
1715                                                                 jiffies;
1716                         hba->destroy_timer.function = bnx2fc_destroy_timer;
1717                         hba->destroy_timer.data = (unsigned long)hba;
1718                         add_timer(&hba->destroy_timer);
1719                         wait_event_interruptible(hba->destroy_wait,
1720                                         test_bit(BNX2FC_FLAG_DESTROY_CMPL,
1721                                                  &hba->flags));
1722                         clear_bit(BNX2FC_FLAG_DESTROY_CMPL, &hba->flags);
1723                         /* This should never happen */
1724                         if (signal_pending(current))
1725                                 flush_signals(current);
1726
1727                         del_timer_sync(&hba->destroy_timer);
1728                 }
1729                 bnx2fc_unbind_adapter_devices(hba);
1730         }
1731 }
1732
1733 /**
1734  * bnx2fc_ulp_stop - cnic callback to shutdown adapter instance
1735  *
1736  * @handle:     transport handle pointing to adapter structure
1737  *
1738  * Driver checks if adapter is already in shutdown mode, if not start
1739  *      the shutdown process.
1740  */
1741 static void bnx2fc_ulp_stop(void *handle)
1742 {
1743         struct bnx2fc_hba *hba = handle;
1744         struct bnx2fc_interface *interface;
1745
1746         printk(KERN_ERR "ULP_STOP\n");
1747
1748         mutex_lock(&bnx2fc_dev_lock);
1749         if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags))
1750                 goto exit;
1751         list_for_each_entry(interface, &if_list, list) {
1752                 if (interface->hba == hba)
1753                         bnx2fc_stop(interface);
1754         }
1755         BUG_ON(hba->num_ofld_sess != 0);
1756
1757         mutex_lock(&hba->hba_mutex);
1758         clear_bit(ADAPTER_STATE_UP, &hba->adapter_state);
1759         clear_bit(ADAPTER_STATE_GOING_DOWN,
1760                   &hba->adapter_state);
1761
1762         clear_bit(ADAPTER_STATE_READY, &hba->adapter_state);
1763         mutex_unlock(&hba->hba_mutex);
1764
1765         bnx2fc_fw_destroy(hba);
1766 exit:
1767         mutex_unlock(&bnx2fc_dev_lock);
1768 }
1769
1770 static void bnx2fc_start_disc(struct bnx2fc_interface *interface)
1771 {
1772         struct fc_lport *lport;
1773         int wait_cnt = 0;
1774
1775         BNX2FC_MISC_DBG("Entered %s\n", __func__);
1776         /* Kick off FIP/FLOGI */
1777         if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &interface->hba->flags)) {
1778                 printk(KERN_ERR PFX "Init not done yet\n");
1779                 return;
1780         }
1781
1782         lport = interface->ctlr.lp;
1783         BNX2FC_HBA_DBG(lport, "calling fc_fabric_login\n");
1784
1785         if (!bnx2fc_link_ok(lport)) {
1786                 BNX2FC_HBA_DBG(lport, "ctlr_link_up\n");
1787                 fcoe_ctlr_link_up(&interface->ctlr);
1788                 fc_host_port_type(lport->host) = FC_PORTTYPE_NPORT;
1789                 set_bit(ADAPTER_STATE_READY, &interface->hba->adapter_state);
1790         }
1791
1792         /* wait for the FCF to be selected before issuing FLOGI */
1793         while (!interface->ctlr.sel_fcf) {
1794                 msleep(250);
1795                 /* give up after 3 secs */
1796                 if (++wait_cnt > 12)
1797                         break;
1798         }
1799
1800         /* Reset max receive frame size to default */
1801         if (fc_set_mfs(lport, BNX2FC_MFS))
1802                 return;
1803
1804         fc_lport_init(lport);
1805         fc_fabric_login(lport);
1806 }
1807
1808
1809 /**
1810  * bnx2fc_ulp_init - Initialize an adapter instance
1811  *
1812  * @dev :       cnic device handle
1813  * Called from cnic_register_driver() context to initialize all
1814  *      enumerated cnic devices. This routine allocates adapter structure
1815  *      and other device specific resources.
1816  */
1817 static void bnx2fc_ulp_init(struct cnic_dev *dev)
1818 {
1819         struct bnx2fc_hba *hba;
1820         int rc = 0;
1821
1822         BNX2FC_MISC_DBG("Entered %s\n", __func__);
1823         /* bnx2fc works only when bnx2x is loaded */
1824         if (!test_bit(CNIC_F_BNX2X_CLASS, &dev->flags) ||
1825             (dev->max_fcoe_conn == 0)) {
1826                 printk(KERN_ERR PFX "bnx2fc FCoE not supported on %s,"
1827                                     " flags: %lx fcoe_conn: %d\n",
1828                         dev->netdev->name, dev->flags, dev->max_fcoe_conn);
1829                 return;
1830         }
1831
1832         hba = bnx2fc_hba_create(dev);
1833         if (!hba) {
1834                 printk(KERN_ERR PFX "hba initialization failed\n");
1835                 return;
1836         }
1837
1838         /* Add HBA to the adapter list */
1839         mutex_lock(&bnx2fc_dev_lock);
1840         list_add_tail(&hba->list, &adapter_list);
1841         adapter_count++;
1842         mutex_unlock(&bnx2fc_dev_lock);
1843
1844         clear_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic);
1845         rc = dev->register_device(dev, CNIC_ULP_FCOE,
1846                                                 (void *) hba);
1847         if (rc)
1848                 printk(KERN_ERR PFX "register_device failed, rc = %d\n", rc);
1849         else
1850                 set_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic);
1851 }
1852
1853
1854 static int bnx2fc_disable(struct net_device *netdev)
1855 {
1856         struct bnx2fc_interface *interface;
1857         int rc = 0;
1858
1859         rtnl_lock();
1860         mutex_lock(&bnx2fc_dev_lock);
1861
1862         interface = bnx2fc_interface_lookup(netdev);
1863         if (!interface || !interface->ctlr.lp) {
1864                 rc = -ENODEV;
1865                 printk(KERN_ERR PFX "bnx2fc_disable: interface or lport not found\n");
1866         } else {
1867                 fcoe_ctlr_link_down(&interface->ctlr);
1868                 fcoe_clean_pending_queue(interface->ctlr.lp);
1869         }
1870
1871         mutex_unlock(&bnx2fc_dev_lock);
1872         rtnl_unlock();
1873         return rc;
1874 }
1875
1876
1877 static int bnx2fc_enable(struct net_device *netdev)
1878 {
1879         struct bnx2fc_interface *interface;
1880         int rc = 0;
1881
1882         rtnl_lock();
1883         mutex_lock(&bnx2fc_dev_lock);
1884
1885         interface = bnx2fc_interface_lookup(netdev);
1886         if (!interface || !interface->ctlr.lp) {
1887                 rc = -ENODEV;
1888                 printk(KERN_ERR PFX "bnx2fc_enable: interface or lport not found\n");
1889         } else if (!bnx2fc_link_ok(interface->ctlr.lp))
1890                 fcoe_ctlr_link_up(&interface->ctlr);
1891
1892         mutex_unlock(&bnx2fc_dev_lock);
1893         rtnl_unlock();
1894         return rc;
1895 }
1896
1897 /**
1898  * bnx2fc_create - Create bnx2fc FCoE interface
1899  *
1900  * @buffer: The name of Ethernet interface to create on
1901  * @kp:     The associated kernel param
1902  *
1903  * Called from sysfs.
1904  *
1905  * Returns: 0 for success
1906  */
1907 static int bnx2fc_create(struct net_device *netdev, enum fip_state fip_mode)
1908 {
1909         struct bnx2fc_interface *interface;
1910         struct bnx2fc_hba *hba;
1911         struct net_device *phys_dev;
1912         struct fc_lport *lport;
1913         struct ethtool_drvinfo drvinfo;
1914         int rc = 0;
1915         int vlan_id;
1916
1917         BNX2FC_MISC_DBG("Entered bnx2fc_create\n");
1918         if (fip_mode != FIP_MODE_FABRIC) {
1919                 printk(KERN_ERR "fip mode not FABRIC\n");
1920                 return -EIO;
1921         }
1922
1923         rtnl_lock();
1924
1925         mutex_lock(&bnx2fc_dev_lock);
1926
1927         if (!try_module_get(THIS_MODULE)) {
1928                 rc = -EINVAL;
1929                 goto mod_err;
1930         }
1931
1932         /* obtain physical netdev */
1933         if (netdev->priv_flags & IFF_802_1Q_VLAN) {
1934                 phys_dev = vlan_dev_real_dev(netdev);
1935                 vlan_id = vlan_dev_vlan_id(netdev);
1936         } else {
1937                 printk(KERN_ERR PFX "Not a vlan device\n");
1938                 rc = -EINVAL;
1939                 goto netdev_err;
1940         }
1941         /* verify if the physical device is a netxtreme2 device */
1942         if (phys_dev->ethtool_ops && phys_dev->ethtool_ops->get_drvinfo) {
1943                 memset(&drvinfo, 0, sizeof(drvinfo));
1944                 phys_dev->ethtool_ops->get_drvinfo(phys_dev, &drvinfo);
1945                 if (strncmp(drvinfo.driver, "bnx2x", strlen("bnx2x"))) {
1946                         printk(KERN_ERR PFX "Not a netxtreme2 device\n");
1947                         rc = -EINVAL;
1948                         goto netdev_err;
1949                 }
1950         } else {
1951                 printk(KERN_ERR PFX "unable to obtain drv_info\n");
1952                 rc = -EINVAL;
1953                 goto netdev_err;
1954         }
1955
1956         /* obtain interface and initialize rest of the structure */
1957         hba = bnx2fc_hba_lookup(phys_dev);
1958         if (!hba) {
1959                 rc = -ENODEV;
1960                 printk(KERN_ERR PFX "bnx2fc_create: hba not found\n");
1961                 goto netdev_err;
1962         }
1963
1964         if (bnx2fc_interface_lookup(netdev)) {
1965                 rc = -EEXIST;
1966                 goto netdev_err;
1967         }
1968
1969         interface = bnx2fc_interface_create(hba, netdev, fip_mode);
1970         if (!interface) {
1971                 printk(KERN_ERR PFX "bnx2fc_interface_create failed\n");
1972                 goto ifput_err;
1973         }
1974
1975         interface->vlan_id = vlan_id;
1976         interface->vlan_enabled = 1;
1977
1978         interface->timer_work_queue =
1979                         create_singlethread_workqueue("bnx2fc_timer_wq");
1980         if (!interface->timer_work_queue) {
1981                 printk(KERN_ERR PFX "ulp_init could not create timer_wq\n");
1982                 rc = -EINVAL;
1983                 goto ifput_err;
1984         }
1985
1986         lport = bnx2fc_if_create(interface, &interface->hba->pcidev->dev, 0);
1987         if (!lport) {
1988                 printk(KERN_ERR PFX "Failed to create interface (%s)\n",
1989                         netdev->name);
1990                 bnx2fc_interface_cleanup(interface);
1991                 rc = -EINVAL;
1992                 goto if_create_err;
1993         }
1994
1995         /* Add interface to if_list */
1996         list_add_tail(&interface->list, &if_list);
1997
1998         lport->boot_time = jiffies;
1999
2000         /* Make this master N_port */
2001         interface->ctlr.lp = lport;
2002
2003         BNX2FC_HBA_DBG(lport, "create: START DISC\n");
2004         bnx2fc_start_disc(interface);
2005         /*
2006          * Release from kref_init in bnx2fc_interface_setup, on success
2007          * lport should be holding a reference taken in bnx2fc_if_create
2008          */
2009         bnx2fc_interface_put(interface);
2010         /* put netdev that was held while calling dev_get_by_name */
2011         mutex_unlock(&bnx2fc_dev_lock);
2012         rtnl_unlock();
2013         return 0;
2014
2015 if_create_err:
2016         destroy_workqueue(interface->timer_work_queue);
2017 ifput_err:
2018         bnx2fc_interface_put(interface);
2019 netdev_err:
2020         module_put(THIS_MODULE);
2021 mod_err:
2022         mutex_unlock(&bnx2fc_dev_lock);
2023         rtnl_unlock();
2024         return rc;
2025 }
2026
2027 /**
2028  * bnx2fc_find_hba_for_cnic - maps cnic instance to bnx2fc hba instance
2029  *
2030  * @cnic:       Pointer to cnic device instance
2031  *
2032  **/
2033 static struct bnx2fc_hba *bnx2fc_find_hba_for_cnic(struct cnic_dev *cnic)
2034 {
2035         struct list_head *list;
2036         struct list_head *temp;
2037         struct bnx2fc_hba *hba;
2038
2039         /* Called with bnx2fc_dev_lock held */
2040         list_for_each_safe(list, temp, &adapter_list) {
2041                 hba = (struct bnx2fc_hba *)list;
2042                 if (hba->cnic == cnic)
2043                         return hba;
2044         }
2045         return NULL;
2046 }
2047
2048 static struct bnx2fc_interface *bnx2fc_interface_lookup(struct net_device
2049                                                         *netdev)
2050 {
2051         struct bnx2fc_interface *interface;
2052
2053         /* Called with bnx2fc_dev_lock held */
2054         list_for_each_entry(interface, &if_list, list) {
2055                 if (interface->netdev == netdev)
2056                         return interface;
2057         }
2058         return NULL;
2059 }
2060
2061 static struct bnx2fc_hba *bnx2fc_hba_lookup(struct net_device
2062                                                       *phys_dev)
2063 {
2064         struct bnx2fc_hba *hba;
2065
2066         /* Called with bnx2fc_dev_lock held */
2067         list_for_each_entry(hba, &adapter_list, list) {
2068                 if (hba->phys_dev == phys_dev)
2069                         return hba;
2070         }
2071         printk(KERN_ERR PFX "adapter_lookup: hba NULL\n");
2072         return NULL;
2073 }
2074
2075 /**
2076  * bnx2fc_ulp_exit - shuts down adapter instance and frees all resources
2077  *
2078  * @dev         cnic device handle
2079  */
2080 static void bnx2fc_ulp_exit(struct cnic_dev *dev)
2081 {
2082         struct bnx2fc_hba *hba;
2083         struct bnx2fc_interface *interface, *tmp;
2084
2085         BNX2FC_MISC_DBG("Entered bnx2fc_ulp_exit\n");
2086
2087         if (!test_bit(CNIC_F_BNX2X_CLASS, &dev->flags)) {
2088                 printk(KERN_ERR PFX "bnx2fc port check: %s, flags: %lx\n",
2089                         dev->netdev->name, dev->flags);
2090                 return;
2091         }
2092
2093         mutex_lock(&bnx2fc_dev_lock);
2094         hba = bnx2fc_find_hba_for_cnic(dev);
2095         if (!hba) {
2096                 printk(KERN_ERR PFX "bnx2fc_ulp_exit: hba not found, dev 0%p\n",
2097                        dev);
2098                 mutex_unlock(&bnx2fc_dev_lock);
2099                 return;
2100         }
2101
2102         list_del_init(&hba->list);
2103         adapter_count--;
2104
2105         list_for_each_entry_safe(interface, tmp, &if_list, list)
2106                 /* destroy not called yet, move to quiesced list */
2107                 if (interface->hba == hba)
2108                         __bnx2fc_destroy(interface);
2109         mutex_unlock(&bnx2fc_dev_lock);
2110
2111         bnx2fc_ulp_stop(hba);
2112         /* unregister cnic device */
2113         if (test_and_clear_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic))
2114                 hba->cnic->unregister_device(hba->cnic, CNIC_ULP_FCOE);
2115         bnx2fc_hba_destroy(hba);
2116 }
2117
2118 /**
2119  * bnx2fc_fcoe_reset - Resets the fcoe
2120  *
2121  * @shost: shost the reset is from
2122  *
2123  * Returns: always 0
2124  */
2125 static int bnx2fc_fcoe_reset(struct Scsi_Host *shost)
2126 {
2127         struct fc_lport *lport = shost_priv(shost);
2128         fc_lport_reset(lport);
2129         return 0;
2130 }
2131
2132
2133 static bool bnx2fc_match(struct net_device *netdev)
2134 {
2135         mutex_lock(&bnx2fc_dev_lock);
2136         if (netdev->priv_flags & IFF_802_1Q_VLAN) {
2137                 struct net_device *phys_dev = vlan_dev_real_dev(netdev);
2138
2139                 if (bnx2fc_hba_lookup(phys_dev)) {
2140                         mutex_unlock(&bnx2fc_dev_lock);
2141                         return true;
2142                 }
2143         }
2144         mutex_unlock(&bnx2fc_dev_lock);
2145         return false;
2146 }
2147
2148
2149 static struct fcoe_transport bnx2fc_transport = {
2150         .name = {"bnx2fc"},
2151         .attached = false,
2152         .list = LIST_HEAD_INIT(bnx2fc_transport.list),
2153         .match = bnx2fc_match,
2154         .create = bnx2fc_create,
2155         .destroy = bnx2fc_destroy,
2156         .enable = bnx2fc_enable,
2157         .disable = bnx2fc_disable,
2158 };
2159
2160 /**
2161  * bnx2fc_percpu_thread_create - Create a receive thread for an
2162  *                               online CPU
2163  *
2164  * @cpu: cpu index for the online cpu
2165  */
2166 static void bnx2fc_percpu_thread_create(unsigned int cpu)
2167 {
2168         struct bnx2fc_percpu_s *p;
2169         struct task_struct *thread;
2170
2171         p = &per_cpu(bnx2fc_percpu, cpu);
2172
2173         thread = kthread_create(bnx2fc_percpu_io_thread,
2174                                 (void *)p,
2175                                 "bnx2fc_thread/%d", cpu);
2176         /* bind thread to the cpu */
2177         if (likely(!IS_ERR(thread))) {
2178                 kthread_bind(thread, cpu);
2179                 p->iothread = thread;
2180                 wake_up_process(thread);
2181         }
2182 }
2183
2184 static void bnx2fc_percpu_thread_destroy(unsigned int cpu)
2185 {
2186         struct bnx2fc_percpu_s *p;
2187         struct task_struct *thread;
2188         struct bnx2fc_work *work, *tmp;
2189
2190         BNX2FC_MISC_DBG("destroying io thread for CPU %d\n", cpu);
2191
2192         /* Prevent any new work from being queued for this CPU */
2193         p = &per_cpu(bnx2fc_percpu, cpu);
2194         spin_lock_bh(&p->fp_work_lock);
2195         thread = p->iothread;
2196         p->iothread = NULL;
2197
2198
2199         /* Free all work in the list */
2200         list_for_each_entry_safe(work, tmp, &p->work_list, list) {
2201                 list_del_init(&work->list);
2202                 bnx2fc_process_cq_compl(work->tgt, work->wqe);
2203                 kfree(work);
2204         }
2205
2206         spin_unlock_bh(&p->fp_work_lock);
2207
2208         if (thread)
2209                 kthread_stop(thread);
2210 }
2211
2212 /**
2213  * bnx2fc_cpu_callback - Handler for CPU hotplug events
2214  *
2215  * @nfb:    The callback data block
2216  * @action: The event triggering the callback
2217  * @hcpu:   The index of the CPU that the event is for
2218  *
2219  * This creates or destroys per-CPU data for fcoe
2220  *
2221  * Returns NOTIFY_OK always.
2222  */
2223 static int bnx2fc_cpu_callback(struct notifier_block *nfb,
2224                              unsigned long action, void *hcpu)
2225 {
2226         unsigned cpu = (unsigned long)hcpu;
2227
2228         switch (action) {
2229         case CPU_ONLINE:
2230         case CPU_ONLINE_FROZEN:
2231                 printk(PFX "CPU %x online: Create Rx thread\n", cpu);
2232                 bnx2fc_percpu_thread_create(cpu);
2233                 break;
2234         case CPU_DEAD:
2235         case CPU_DEAD_FROZEN:
2236                 printk(PFX "CPU %x offline: Remove Rx thread\n", cpu);
2237                 bnx2fc_percpu_thread_destroy(cpu);
2238                 break;
2239         default:
2240                 break;
2241         }
2242         return NOTIFY_OK;
2243 }
2244
2245 /**
2246  * bnx2fc_mod_init - module init entry point
2247  *
2248  * Initialize driver wide global data structures, and register
2249  * with cnic module
2250  **/
2251 static int __init bnx2fc_mod_init(void)
2252 {
2253         struct fcoe_percpu_s *bg;
2254         struct task_struct *l2_thread;
2255         int rc = 0;
2256         unsigned int cpu = 0;
2257         struct bnx2fc_percpu_s *p;
2258
2259         printk(KERN_INFO PFX "%s", version);
2260
2261         /* register as a fcoe transport */
2262         rc = fcoe_transport_attach(&bnx2fc_transport);
2263         if (rc) {
2264                 printk(KERN_ERR "failed to register an fcoe transport, check "
2265                         "if libfcoe is loaded\n");
2266                 goto out;
2267         }
2268
2269         INIT_LIST_HEAD(&adapter_list);
2270         INIT_LIST_HEAD(&if_list);
2271         mutex_init(&bnx2fc_dev_lock);
2272         adapter_count = 0;
2273
2274         /* Attach FC transport template */
2275         rc = bnx2fc_attach_transport();
2276         if (rc)
2277                 goto detach_ft;
2278
2279         bnx2fc_wq = alloc_workqueue("bnx2fc", 0, 0);
2280         if (!bnx2fc_wq) {
2281                 rc = -ENOMEM;
2282                 goto release_bt;
2283         }
2284
2285         bg = &bnx2fc_global;
2286         skb_queue_head_init(&bg->fcoe_rx_list);
2287         l2_thread = kthread_create(bnx2fc_l2_rcv_thread,
2288                                    (void *)bg,
2289                                    "bnx2fc_l2_thread");
2290         if (IS_ERR(l2_thread)) {
2291                 rc = PTR_ERR(l2_thread);
2292                 goto free_wq;
2293         }
2294         wake_up_process(l2_thread);
2295         spin_lock_bh(&bg->fcoe_rx_list.lock);
2296         bg->thread = l2_thread;
2297         spin_unlock_bh(&bg->fcoe_rx_list.lock);
2298
2299         for_each_possible_cpu(cpu) {
2300                 p = &per_cpu(bnx2fc_percpu, cpu);
2301                 INIT_LIST_HEAD(&p->work_list);
2302                 spin_lock_init(&p->fp_work_lock);
2303         }
2304
2305         for_each_online_cpu(cpu) {
2306                 bnx2fc_percpu_thread_create(cpu);
2307         }
2308
2309         /* Initialize per CPU interrupt thread */
2310         register_hotcpu_notifier(&bnx2fc_cpu_notifier);
2311
2312         cnic_register_driver(CNIC_ULP_FCOE, &bnx2fc_cnic_cb);
2313
2314         return 0;
2315
2316 free_wq:
2317         destroy_workqueue(bnx2fc_wq);
2318 release_bt:
2319         bnx2fc_release_transport();
2320 detach_ft:
2321         fcoe_transport_detach(&bnx2fc_transport);
2322 out:
2323         return rc;
2324 }
2325
2326 static void __exit bnx2fc_mod_exit(void)
2327 {
2328         LIST_HEAD(to_be_deleted);
2329         struct bnx2fc_hba *hba, *next;
2330         struct fcoe_percpu_s *bg;
2331         struct task_struct *l2_thread;
2332         struct sk_buff *skb;
2333         unsigned int cpu = 0;
2334
2335         /*
2336          * NOTE: Since cnic calls register_driver routine rtnl_lock,
2337          * it will have higher precedence than bnx2fc_dev_lock.
2338          * unregister_device() cannot be called with bnx2fc_dev_lock
2339          * held.
2340          */
2341         mutex_lock(&bnx2fc_dev_lock);
2342         list_splice(&adapter_list, &to_be_deleted);
2343         INIT_LIST_HEAD(&adapter_list);
2344         adapter_count = 0;
2345         mutex_unlock(&bnx2fc_dev_lock);
2346
2347         /* Unregister with cnic */
2348         list_for_each_entry_safe(hba, next, &to_be_deleted, list) {
2349                 list_del_init(&hba->list);
2350                 printk(KERN_ERR PFX "MOD_EXIT:destroy hba = 0x%p\n",
2351                        hba);
2352                 bnx2fc_ulp_stop(hba);
2353                 /* unregister cnic device */
2354                 if (test_and_clear_bit(BNX2FC_CNIC_REGISTERED,
2355                                        &hba->reg_with_cnic))
2356                         hba->cnic->unregister_device(hba->cnic,
2357                                                          CNIC_ULP_FCOE);
2358                 bnx2fc_hba_destroy(hba);
2359         }
2360         cnic_unregister_driver(CNIC_ULP_FCOE);
2361
2362         /* Destroy global thread */
2363         bg = &bnx2fc_global;
2364         spin_lock_bh(&bg->fcoe_rx_list.lock);
2365         l2_thread = bg->thread;
2366         bg->thread = NULL;
2367         while ((skb = __skb_dequeue(&bg->fcoe_rx_list)) != NULL)
2368                 kfree_skb(skb);
2369
2370         spin_unlock_bh(&bg->fcoe_rx_list.lock);
2371
2372         if (l2_thread)
2373                 kthread_stop(l2_thread);
2374
2375         unregister_hotcpu_notifier(&bnx2fc_cpu_notifier);
2376
2377         /* Destroy per cpu threads */
2378         for_each_online_cpu(cpu) {
2379                 bnx2fc_percpu_thread_destroy(cpu);
2380         }
2381
2382         destroy_workqueue(bnx2fc_wq);
2383         /*
2384          * detach from scsi transport
2385          * must happen after all destroys are done
2386          */
2387         bnx2fc_release_transport();
2388
2389         /* detach from fcoe transport */
2390         fcoe_transport_detach(&bnx2fc_transport);
2391 }
2392
2393 module_init(bnx2fc_mod_init);
2394 module_exit(bnx2fc_mod_exit);
2395
2396 static struct fc_function_template bnx2fc_transport_function = {
2397         .show_host_node_name = 1,
2398         .show_host_port_name = 1,
2399         .show_host_supported_classes = 1,
2400         .show_host_supported_fc4s = 1,
2401         .show_host_active_fc4s = 1,
2402         .show_host_maxframe_size = 1,
2403
2404         .show_host_port_id = 1,
2405         .show_host_supported_speeds = 1,
2406         .get_host_speed = fc_get_host_speed,
2407         .show_host_speed = 1,
2408         .show_host_port_type = 1,
2409         .get_host_port_state = fc_get_host_port_state,
2410         .show_host_port_state = 1,
2411         .show_host_symbolic_name = 1,
2412
2413         .dd_fcrport_size = (sizeof(struct fc_rport_libfc_priv) +
2414                                 sizeof(struct bnx2fc_rport)),
2415         .show_rport_maxframe_size = 1,
2416         .show_rport_supported_classes = 1,
2417
2418         .show_host_fabric_name = 1,
2419         .show_starget_node_name = 1,
2420         .show_starget_port_name = 1,
2421         .show_starget_port_id = 1,
2422         .set_rport_dev_loss_tmo = fc_set_rport_loss_tmo,
2423         .show_rport_dev_loss_tmo = 1,
2424         .get_fc_host_stats = bnx2fc_get_host_stats,
2425
2426         .issue_fc_host_lip = bnx2fc_fcoe_reset,
2427
2428         .terminate_rport_io = fc_rport_terminate_io,
2429
2430         .vport_create = bnx2fc_vport_create,
2431         .vport_delete = bnx2fc_vport_destroy,
2432         .vport_disable = bnx2fc_vport_disable,
2433         .bsg_request = fc_lport_bsg_request,
2434 };
2435
2436 static struct fc_function_template bnx2fc_vport_xport_function = {
2437         .show_host_node_name = 1,
2438         .show_host_port_name = 1,
2439         .show_host_supported_classes = 1,
2440         .show_host_supported_fc4s = 1,
2441         .show_host_active_fc4s = 1,
2442         .show_host_maxframe_size = 1,
2443
2444         .show_host_port_id = 1,
2445         .show_host_supported_speeds = 1,
2446         .get_host_speed = fc_get_host_speed,
2447         .show_host_speed = 1,
2448         .show_host_port_type = 1,
2449         .get_host_port_state = fc_get_host_port_state,
2450         .show_host_port_state = 1,
2451         .show_host_symbolic_name = 1,
2452
2453         .dd_fcrport_size = (sizeof(struct fc_rport_libfc_priv) +
2454                                 sizeof(struct bnx2fc_rport)),
2455         .show_rport_maxframe_size = 1,
2456         .show_rport_supported_classes = 1,
2457
2458         .show_host_fabric_name = 1,
2459         .show_starget_node_name = 1,
2460         .show_starget_port_name = 1,
2461         .show_starget_port_id = 1,
2462         .set_rport_dev_loss_tmo = fc_set_rport_loss_tmo,
2463         .show_rport_dev_loss_tmo = 1,
2464         .get_fc_host_stats = fc_get_host_stats,
2465         .issue_fc_host_lip = bnx2fc_fcoe_reset,
2466         .terminate_rport_io = fc_rport_terminate_io,
2467         .bsg_request = fc_lport_bsg_request,
2468 };
2469
2470 /**
2471  * scsi_host_template structure used while registering with SCSI-ml
2472  */
2473 static struct scsi_host_template bnx2fc_shost_template = {
2474         .module                 = THIS_MODULE,
2475         .name                   = "Broadcom Offload FCoE Initiator",
2476         .queuecommand           = bnx2fc_queuecommand,
2477         .eh_abort_handler       = bnx2fc_eh_abort,        /* abts */
2478         .eh_device_reset_handler = bnx2fc_eh_device_reset, /* lun reset */
2479         .eh_target_reset_handler = bnx2fc_eh_target_reset, /* tgt reset */
2480         .eh_host_reset_handler  = fc_eh_host_reset,
2481         .slave_alloc            = fc_slave_alloc,
2482         .change_queue_depth     = fc_change_queue_depth,
2483         .change_queue_type      = fc_change_queue_type,
2484         .this_id                = -1,
2485         .cmd_per_lun            = 3,
2486         .can_queue              = BNX2FC_CAN_QUEUE,
2487         .use_clustering         = ENABLE_CLUSTERING,
2488         .sg_tablesize           = BNX2FC_MAX_BDS_PER_CMD,
2489         .max_sectors            = 512,
2490 };
2491
2492 static struct libfc_function_template bnx2fc_libfc_fcn_templ = {
2493         .frame_send             = bnx2fc_xmit,
2494         .elsct_send             = bnx2fc_elsct_send,
2495         .fcp_abort_io           = bnx2fc_abort_io,
2496         .fcp_cleanup            = bnx2fc_cleanup,
2497         .rport_event_callback   = bnx2fc_rport_event_handler,
2498 };
2499
2500 /**
2501  * bnx2fc_cnic_cb - global template of bnx2fc - cnic driver interface
2502  *                      structure carrying callback function pointers
2503  */
2504 static struct cnic_ulp_ops bnx2fc_cnic_cb = {
2505         .owner                  = THIS_MODULE,
2506         .cnic_init              = bnx2fc_ulp_init,
2507         .cnic_exit              = bnx2fc_ulp_exit,
2508         .cnic_start             = bnx2fc_ulp_start,
2509         .cnic_stop              = bnx2fc_ulp_stop,
2510         .indicate_kcqes         = bnx2fc_indicate_kcqe,
2511         .indicate_netevent      = bnx2fc_indicate_netevent,
2512 };