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