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      "Jan 22, 2011"
  26
  27
  28 static char version[] __devinitdata =
  29                 "Broadcom NetXtreme II FCoE Driver " DRV_MODULE_NAME \
  30                 " v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n";
  31
  32
  33 MODULE_AUTHOR("Bhanu Prakash Gollapudi <bprakash@broadcom.com>");
  34 MODULE_DESCRIPTION("Broadcom NetXtreme II BCM57710 FCoE Driver");
  35 MODULE_LICENSE("GPL");
  36 MODULE_VERSION(DRV_MODULE_VERSION);
  37
  38 #define BNX2FC_MAX_QUEUE_DEPTH  256
  39 #define BNX2FC_MIN_QUEUE_DEPTH  32
  40 #define FCOE_WORD_TO_BYTE  4
  41
  42 static struct scsi_transport_template   *bnx2fc_transport_template;
  43 static struct scsi_transport_template   *bnx2fc_vport_xport_template;
  44
  45 struct workqueue_struct *bnx2fc_wq;
  46
  47 /* bnx2fc structure needs only one instance of the fcoe_percpu_s structure.
  48  * Here the io threads are per cpu but the l2 thread is just one
  49  */
  50 struct fcoe_percpu_s bnx2fc_global;
  51 DEFINE_SPINLOCK(bnx2fc_global_lock);
  52
  53 static struct cnic_ulp_ops bnx2fc_cnic_cb;
  54 static struct libfc_function_template bnx2fc_libfc_fcn_templ;
  55 static struct scsi_host_template bnx2fc_shost_template;
  56 static struct fc_function_template bnx2fc_transport_function;
  57 static struct fc_function_template bnx2fc_vport_xport_function;
  58 static int bnx2fc_create(struct net_device *netdev, enum fip_state fip_mode);
  59 static void __bnx2fc_destroy(struct bnx2fc_interface *interface);
  60 static int bnx2fc_destroy(struct net_device *net_device);
  61 static int bnx2fc_enable(struct net_device *netdev);
  62 static int bnx2fc_disable(struct net_device *netdev);
  63
  64 static void bnx2fc_recv_frame(struct sk_buff *skb);
  65
  66 static void bnx2fc_start_disc(struct bnx2fc_interface *interface);
  67 static int bnx2fc_shost_config(struct fc_lport *lport, struct device *dev);
  68 static int bnx2fc_lport_config(struct fc_lport *lport);
  69 static int bnx2fc_em_config(struct fc_lport *lport);
  70 static int bnx2fc_bind_adapter_devices(struct bnx2fc_hba *hba);
  71 static void bnx2fc_unbind_adapter_devices(struct bnx2fc_hba *hba);
  72 static int bnx2fc_bind_pcidev(struct bnx2fc_hba *hba);
  73 static void bnx2fc_unbind_pcidev(struct bnx2fc_hba *hba);
  74 static struct fc_lport *bnx2fc_if_create(struct bnx2fc_interface *interface,
  75                                   struct device *parent, int npiv);
  76 static void bnx2fc_destroy_work(struct work_struct *work);
  77
  78 static struct bnx2fc_hba *bnx2fc_hba_lookup(struct net_device *phys_dev);
  79 static struct bnx2fc_interface *bnx2fc_interface_lookup(struct net_device
  80                                                         *phys_dev);
  81 static inline void bnx2fc_interface_put(struct bnx2fc_interface *interface);
  82 static struct bnx2fc_hba *bnx2fc_find_hba_for_cnic(struct cnic_dev *cnic);
  83
  84 static int bnx2fc_fw_init(struct bnx2fc_hba *hba);
  85 static void bnx2fc_fw_destroy(struct bnx2fc_hba *hba);
  86
  87 static void bnx2fc_port_shutdown(struct fc_lport *lport);
  88 static void bnx2fc_stop(struct bnx2fc_interface *interface);
  89 static int __init bnx2fc_mod_init(void);
  90 static void __exit bnx2fc_mod_exit(void);
  91
  92 unsigned int bnx2fc_debug_level;
  93 module_param_named(debug_logging, bnx2fc_debug_level, int, S_IRUGO|S_IWUSR);
  94
  95 static int bnx2fc_cpu_callback(struct notifier_block *nfb,
  96                              unsigned long action, void *hcpu);
  97 /* notification function for CPU hotplug events */
  98 static struct notifier_block bnx2fc_cpu_notifier = {
  99         .notifier_call = bnx2fc_cpu_callback,
 100 };
 101
 102 static inline struct net_device *bnx2fc_netdev(const struct fc_lport *lport)
 103 {
 104         return ((struct bnx2fc_interface *)
 105                 ((struct fcoe_port *)lport_priv(lport))->priv)->netdev;
 106 }
 107
 108 /**
 109  * bnx2fc_get_lesb() - Fill the FCoE Link Error Status Block
 110  * @lport: the local port
 111  * @fc_lesb: the link error status block
 112  */
 113 static void bnx2fc_get_lesb(struct fc_lport *lport,
 114                             struct fc_els_lesb *fc_lesb)
 115 {
 116         struct net_device *netdev = bnx2fc_netdev(lport);
 117
 118         __fcoe_get_lesb(lport, fc_lesb, netdev);
 119 }
 120
 121 static void bnx2fc_clean_rx_queue(struct fc_lport *lp)
 122 {
 123         struct fcoe_percpu_s *bg;
 124         struct fcoe_rcv_info *fr;
 125         struct sk_buff_head *list;
 126         struct sk_buff *skb, *next;
 127         struct sk_buff *head;
 128
 129         bg = &bnx2fc_global;
 130         spin_lock_bh(&bg->fcoe_rx_list.lock);
 131         list = &bg->fcoe_rx_list;
 132         head = list->next;
 133         for (skb = head; skb != (struct sk_buff *)list;
 134              skb = next) {
 135                 next = skb->next;
 136                 fr = fcoe_dev_from_skb(skb);
 137                 if (fr->fr_dev == lp) {
 138                         __skb_unlink(skb, list);
 139                         kfree_skb(skb);
 140                 }
 141         }
 142         spin_unlock_bh(&bg->fcoe_rx_list.lock);
 143 }
 144
 145 int bnx2fc_get_paged_crc_eof(struct sk_buff *skb, int tlen)
 146 {
 147         int rc;
 148         spin_lock(&bnx2fc_global_lock);
 149         rc = fcoe_get_paged_crc_eof(skb, tlen, &bnx2fc_global);
 150         spin_unlock(&bnx2fc_global_lock);
 151
 152         return rc;
 153 }
 154
 155 static void bnx2fc_abort_io(struct fc_lport *lport)
 156 {
 157         /*
 158          * This function is no-op for bnx2fc, but we do
 159          * not want to leave it as NULL either, as libfc
 160          * can call the default function which is
 161          * fc_fcp_abort_io.
 162          */
 163 }
 164
 165 static void bnx2fc_cleanup(struct fc_lport *lport)
 166 {
 167         struct fcoe_port *port = lport_priv(lport);
 168         struct bnx2fc_interface *interface = port->priv;
 169         struct bnx2fc_hba *hba = interface->hba;
 170         struct bnx2fc_rport *tgt;
 171         int i;
 172
 173         BNX2FC_MISC_DBG("Entered %s\n", __func__);
 174         mutex_lock(&hba->hba_mutex);
 175         spin_lock_bh(&hba->hba_lock);
 176         for (i = 0; i < BNX2FC_NUM_MAX_SESS; i++) {
 177                 tgt = hba->tgt_ofld_list[i];
 178                 if (tgt) {
 179                         /* Cleanup IOs belonging to requested vport */
 180                         if (tgt->port == port) {
 181                                 spin_unlock_bh(&hba->hba_lock);
 182                                 BNX2FC_TGT_DBG(tgt, "flush/cleanup\n");
 183                                 bnx2fc_flush_active_ios(tgt);
 184                                 spin_lock_bh(&hba->hba_lock);
 185                         }
 186                 }
 187         }
 188         spin_unlock_bh(&hba->hba_lock);
 189         mutex_unlock(&hba->hba_mutex);
 190 }
 191
 192 static int bnx2fc_xmit_l2_frame(struct bnx2fc_rport *tgt,
 193                              struct fc_frame *fp)
 194 {
 195         struct fc_rport_priv *rdata = tgt->rdata;
 196         struct fc_frame_header *fh;
 197         int rc = 0;
 198
 199         fh = fc_frame_header_get(fp);
 200         BNX2FC_TGT_DBG(tgt, "Xmit L2 frame rport = 0x%x, oxid = 0x%x, "
 201                         "r_ctl = 0x%x\n", rdata->ids.port_id,
 202                         ntohs(fh->fh_ox_id), fh->fh_r_ctl);
 203         if ((fh->fh_type == FC_TYPE_ELS) &&
 204             (fh->fh_r_ctl == FC_RCTL_ELS_REQ)) {
 205
 206                 switch (fc_frame_payload_op(fp)) {
 207                 case ELS_ADISC:
 208                         rc = bnx2fc_send_adisc(tgt, fp);
 209                         break;
 210                 case ELS_LOGO:
 211                         rc = bnx2fc_send_logo(tgt, fp);
 212                         break;
 213                 case ELS_RLS:
 214                         rc = bnx2fc_send_rls(tgt, fp);
 215                         break;
 216                 default:
 217                         break;
 218                 }
 219         } else if ((fh->fh_type ==  FC_TYPE_BLS) &&
 220             (fh->fh_r_ctl == FC_RCTL_BA_ABTS))
 221                 BNX2FC_TGT_DBG(tgt, "ABTS frame\n");
 222         else {
 223                 BNX2FC_TGT_DBG(tgt, "Send L2 frame type 0x%x "
 224                                 "rctl 0x%x thru non-offload path\n",
 225                                 fh->fh_type, fh->fh_r_ctl);
 226                 return -ENODEV;
 227         }
 228         if (rc)
 229                 return -ENOMEM;
 230         else
 231                 return 0;
 232 }
 233
 234 /**
 235  * bnx2fc_xmit - bnx2fc's FCoE frame transmit function
 236  *
 237  * @lport:      the associated local port
 238  * @fp: the fc_frame to be transmitted
 239  */
 240 static int bnx2fc_xmit(struct fc_lport *lport, struct fc_frame *fp)
 241 {
 242         struct ethhdr           *eh;
 243         struct fcoe_crc_eof     *cp;
 244         struct sk_buff          *skb;
 245         struct fc_frame_header  *fh;
 246         struct bnx2fc_interface *interface;
 247         struct bnx2fc_hba *hba;
 248         struct fcoe_port        *port;
 249         struct fcoe_hdr         *hp;
 250         struct bnx2fc_rport     *tgt;
 251         struct fcoe_dev_stats   *stats;
 252         u8                      sof, eof;
 253         u32                     crc;
 254         unsigned int            hlen, tlen, elen;
 255         int                     wlen, rc = 0;
 256
 257         port = (struct fcoe_port *)lport_priv(lport);
 258         interface = port->priv;
 259         hba = interface->hba;
 260
 261         fh = fc_frame_header_get(fp);
 262
 263         skb = fp_skb(fp);
 264         if (!lport->link_up) {
 265                 BNX2FC_HBA_DBG(lport, "bnx2fc_xmit link down\n");
 266                 kfree_skb(skb);
 267                 return 0;
 268         }
 269
 270         if (unlikely(fh->fh_r_ctl == FC_RCTL_ELS_REQ)) {
 271                 if (!interface->ctlr.sel_fcf) {
 272                         BNX2FC_HBA_DBG(lport, "FCF not selected yet!\n");
 273                         kfree_skb(skb);
 274                         return -EINVAL;
 275                 }
 276                 if (fcoe_ctlr_els_send(&interface->ctlr, lport, skb))
 277                         return 0;
 278         }
 279
 280         sof = fr_sof(fp);
 281         eof = fr_eof(fp);
 282
 283         /*
 284          * Snoop the frame header to check if the frame is for
 285          * an offloaded session
 286          */
 287         /*
 288          * tgt_ofld_list access is synchronized using
 289          * both hba mutex and hba lock. Atleast hba mutex or
 290          * hba lock needs to be held for read access.
 291          */
 292
 293         spin_lock_bh(&hba->hba_lock);
 294         tgt = bnx2fc_tgt_lookup(port, ntoh24(fh->fh_d_id));
 295         if (tgt && (test_bit(BNX2FC_FLAG_SESSION_READY, &tgt->flags))) {
 296                 /* This frame is for offloaded session */
 297                 BNX2FC_HBA_DBG(lport, "xmit: Frame is for offloaded session "
 298                                 "port_id = 0x%x\n", ntoh24(fh->fh_d_id));
 299                 spin_unlock_bh(&hba->hba_lock);
 300                 rc = bnx2fc_xmit_l2_frame(tgt, fp);
 301                 if (rc != -ENODEV) {
 302                         kfree_skb(skb);
 303                         return rc;
 304                 }
 305         } else {
 306                 spin_unlock_bh(&hba->hba_lock);
 307         }
 308
 309         elen = sizeof(struct ethhdr);
 310         hlen = sizeof(struct fcoe_hdr);
 311         tlen = sizeof(struct fcoe_crc_eof);
 312         wlen = (skb->len - tlen + sizeof(crc)) / FCOE_WORD_TO_BYTE;
 313
 314         skb->ip_summed = CHECKSUM_NONE;
 315         crc = fcoe_fc_crc(fp);
 316
 317         /* copy port crc and eof to the skb buff */
 318         if (skb_is_nonlinear(skb)) {
 319                 skb_frag_t *frag;
 320                 if (bnx2fc_get_paged_crc_eof(skb, tlen)) {
 321                         kfree_skb(skb);
 322                         return -ENOMEM;
 323                 }
 324                 frag = &skb_shinfo(skb)->frags[skb_shinfo(skb)->nr_frags - 1];
 325                 cp = kmap_atomic(skb_frag_page(frag)) + frag->page_offset;
 326         } else {
 327                 cp = (struct fcoe_crc_eof *)skb_put(skb, tlen);
 328         }
 329
 330         memset(cp, 0, sizeof(*cp));
 331         cp->fcoe_eof = eof;
 332         cp->fcoe_crc32 = cpu_to_le32(~crc);
 333         if (skb_is_nonlinear(skb)) {
 334                 kunmap_atomic(cp);
 335                 cp = NULL;
 336         }
 337
 338         /* adjust skb network/transport offsets to match mac/fcoe/port */
 339         skb_push(skb, elen + hlen);
 340         skb_reset_mac_header(skb);
 341         skb_reset_network_header(skb);
 342         skb->mac_len = elen;
 343         skb->protocol = htons(ETH_P_FCOE);
 344         skb->dev = interface->netdev;
 345
 346         /* fill up mac and fcoe headers */
 347         eh = eth_hdr(skb);
 348         eh->h_proto = htons(ETH_P_FCOE);
 349         if (interface->ctlr.map_dest)
 350                 fc_fcoe_set_mac(eh->h_dest, fh->fh_d_id);
 351         else
 352                 /* insert GW address */
 353                 memcpy(eh->h_dest, interface->ctlr.dest_addr, ETH_ALEN);
 354
 355         if (unlikely(interface->ctlr.flogi_oxid != FC_XID_UNKNOWN))
 356                 memcpy(eh->h_source, interface->ctlr.ctl_src_addr, ETH_ALEN);
 357         else
 358                 memcpy(eh->h_source, port->data_src_addr, ETH_ALEN);
 359
 360         hp = (struct fcoe_hdr *)(eh + 1);
 361         memset(hp, 0, sizeof(*hp));
 362         if (FC_FCOE_VER)
 363                 FC_FCOE_ENCAPS_VER(hp, FC_FCOE_VER);
 364         hp->fcoe_sof = sof;
 365
 366         /* fcoe lso, mss is in max_payload which is non-zero for FCP data */
 367         if (lport->seq_offload && fr_max_payload(fp)) {
 368                 skb_shinfo(skb)->gso_type = SKB_GSO_FCOE;
 369                 skb_shinfo(skb)->gso_size = fr_max_payload(fp);
 370         } else {
 371                 skb_shinfo(skb)->gso_type = 0;
 372                 skb_shinfo(skb)->gso_size = 0;
 373         }
 374
 375         /*update tx stats */
 376         stats = per_cpu_ptr(lport->dev_stats, get_cpu());
 377         stats->TxFrames++;
 378         stats->TxWords += wlen;
 379         put_cpu();
 380
 381         /* send down to lld */
 382         fr_dev(fp) = lport;
 383         if (port->fcoe_pending_queue.qlen)
 384                 fcoe_check_wait_queue(lport, skb);
 385         else if (fcoe_start_io(skb))
 386                 fcoe_check_wait_queue(lport, skb);
 387
 388         return 0;
 389 }
 390
 391 /**
 392  * bnx2fc_rcv - This is bnx2fc's receive function called by NET_RX_SOFTIRQ
 393  *
 394  * @skb:        the receive socket buffer
 395  * @dev:        associated net device
 396  * @ptype:      context
 397  * @olddev:     last device
 398  *
 399  * This function receives the packet and builds FC frame and passes it up
 400  */
 401 static int bnx2fc_rcv(struct sk_buff *skb, struct net_device *dev,
 402                 struct packet_type *ptype, struct net_device *olddev)
 403 {
 404         struct fc_lport *lport;
 405         struct bnx2fc_interface *interface;
 406         struct fc_frame_header *fh;
 407         struct fcoe_rcv_info *fr;
 408         struct fcoe_percpu_s *bg;
 409         unsigned short oxid;
 410
 411         interface = container_of(ptype, struct bnx2fc_interface,
 412                                  fcoe_packet_type);
 413         lport = interface->ctlr.lp;
 414
 415         if (unlikely(lport == NULL)) {
 416                 printk(KERN_ERR PFX "bnx2fc_rcv: lport is NULL\n");
 417                 goto err;
 418         }
 419
 420         if (unlikely(eth_hdr(skb)->h_proto != htons(ETH_P_FCOE))) {
 421                 printk(KERN_ERR PFX "bnx2fc_rcv: Wrong FC type frame\n");
 422                 goto err;
 423         }
 424
 425         /*
 426          * Check for minimum frame length, and make sure required FCoE
 427          * and FC headers are pulled into the linear data area.
 428          */
 429         if (unlikely((skb->len < FCOE_MIN_FRAME) ||
 430             !pskb_may_pull(skb, FCOE_HEADER_LEN)))
 431                 goto err;
 432
 433         skb_set_transport_header(skb, sizeof(struct fcoe_hdr));
 434         fh = (struct fc_frame_header *) skb_transport_header(skb);
 435
 436         oxid = ntohs(fh->fh_ox_id);
 437
 438         fr = fcoe_dev_from_skb(skb);
 439         fr->fr_dev = lport;
 440
 441         bg = &bnx2fc_global;
 442         spin_lock(&bg->fcoe_rx_list.lock);
 443
 444         __skb_queue_tail(&bg->fcoe_rx_list, skb);
 445         if (bg->fcoe_rx_list.qlen == 1)
 446                 wake_up_process(bg->thread);
 447
 448         spin_unlock(&bg->fcoe_rx_list.lock);
 449
 450         return 0;
 451 err:
 452         kfree_skb(skb);
 453         return -1;
 454 }
 455
 456 static int bnx2fc_l2_rcv_thread(void *arg)
 457 {
 458         struct fcoe_percpu_s *bg = arg;
 459         struct sk_buff *skb;
 460
 461         set_user_nice(current, -20);
 462         set_current_state(TASK_INTERRUPTIBLE);
 463         while (!kthread_should_stop()) {
 464                 schedule();
 465                 spin_lock_bh(&bg->fcoe_rx_list.lock);
 466                 while ((skb = __skb_dequeue(&bg->fcoe_rx_list)) != NULL) {
 467                         spin_unlock_bh(&bg->fcoe_rx_list.lock);
 468                         bnx2fc_recv_frame(skb);
 469                         spin_lock_bh(&bg->fcoe_rx_list.lock);
 470                 }
 471                 __set_current_state(TASK_INTERRUPTIBLE);
 472                 spin_unlock_bh(&bg->fcoe_rx_list.lock);
 473         }
 474         __set_current_state(TASK_RUNNING);
 475         return 0;
 476 }
 477
 478
 479 static void bnx2fc_recv_frame(struct sk_buff *skb)
 480 {
 481         u32 fr_len;
 482         struct fc_lport *lport;
 483         struct fcoe_rcv_info *fr;
 484         struct fcoe_dev_stats *stats;
 485         struct fc_frame_header *fh;
 486         struct fcoe_crc_eof crc_eof;
 487         struct fc_frame *fp;
 488         struct fc_lport *vn_port;
 489         struct fcoe_port *port;
 490         u8 *mac = NULL;
 491         u8 *dest_mac = NULL;
 492         struct fcoe_hdr *hp;
 493
 494         fr = fcoe_dev_from_skb(skb);
 495         lport = fr->fr_dev;
 496         if (unlikely(lport == NULL)) {
 497                 printk(KERN_ERR PFX "Invalid lport struct\n");
 498                 kfree_skb(skb);
 499                 return;
 500         }
 501
 502         if (skb_is_nonlinear(skb))
 503                 skb_linearize(skb);
 504         mac = eth_hdr(skb)->h_source;
 505         dest_mac = eth_hdr(skb)->h_dest;
 506
 507         /* Pull the header */
 508         hp = (struct fcoe_hdr *) skb_network_header(skb);
 509         fh = (struct fc_frame_header *) skb_transport_header(skb);
 510         skb_pull(skb, sizeof(struct fcoe_hdr));
 511         fr_len = skb->len - sizeof(struct fcoe_crc_eof);
 512
 513         stats = per_cpu_ptr(lport->dev_stats, get_cpu());
 514         stats->RxFrames++;
 515         stats->RxWords += fr_len / FCOE_WORD_TO_BYTE;
 516
 517         fp = (struct fc_frame *)skb;
 518         fc_frame_init(fp);
 519         fr_dev(fp) = lport;
 520         fr_sof(fp) = hp->fcoe_sof;
 521         if (skb_copy_bits(skb, fr_len, &crc_eof, sizeof(crc_eof))) {
 522                 put_cpu();
 523                 kfree_skb(skb);
 524                 return;
 525         }
 526         fr_eof(fp) = crc_eof.fcoe_eof;
 527         fr_crc(fp) = crc_eof.fcoe_crc32;
 528         if (pskb_trim(skb, fr_len)) {
 529                 put_cpu();
 530                 kfree_skb(skb);
 531                 return;
 532         }
 533
 534         fh = fc_frame_header_get(fp);
 535
 536         vn_port = fc_vport_id_lookup(lport, ntoh24(fh->fh_d_id));
 537         if (vn_port) {
 538                 port = lport_priv(vn_port);
 539                 if (compare_ether_addr(port->data_src_addr, dest_mac)
 540                     != 0) {
 541                         BNX2FC_HBA_DBG(lport, "fpma mismatch\n");
 542                         put_cpu();
 543                         kfree_skb(skb);
 544                         return;
 545                 }
 546         }
 547         if (fh->fh_r_ctl == FC_RCTL_DD_SOL_DATA &&
 548             fh->fh_type == FC_TYPE_FCP) {
 549                 /* Drop FCP data. We dont this in L2 path */
 550                 put_cpu();
 551                 kfree_skb(skb);
 552                 return;
 553         }
 554         if (fh->fh_r_ctl == FC_RCTL_ELS_REQ &&
 555             fh->fh_type == FC_TYPE_ELS) {
 556                 switch (fc_frame_payload_op(fp)) {
 557                 case ELS_LOGO:
 558                         if (ntoh24(fh->fh_s_id) == FC_FID_FLOGI) {
 559                                 /* drop non-FIP LOGO */
 560                                 put_cpu();
 561                                 kfree_skb(skb);
 562                                 return;
 563                         }
 564                         break;
 565                 }
 566         }
 567
 568         if (fh->fh_r_ctl == FC_RCTL_BA_ABTS) {
 569                 /* Drop incoming ABTS */
 570                 put_cpu();
 571                 kfree_skb(skb);
 572                 return;
 573         }
 574
 575         if (le32_to_cpu(fr_crc(fp)) !=
 576                         ~crc32(~0, skb->data, fr_len)) {
 577                 if (stats->InvalidCRCCount < 5)
 578                         printk(KERN_WARNING PFX "dropping frame with "
 579                                "CRC error\n");
 580                 stats->InvalidCRCCount++;
 581                 put_cpu();
 582                 kfree_skb(skb);
 583                 return;
 584         }
 585         put_cpu();
 586         fc_exch_recv(lport, fp);
 587 }
 588
 589 /**
 590  * bnx2fc_percpu_io_thread - thread per cpu for ios
 591  *
 592  * @arg:        ptr to bnx2fc_percpu_info structure
 593  */
 594 int bnx2fc_percpu_io_thread(void *arg)
 595 {
 596         struct bnx2fc_percpu_s *p = arg;
 597         struct bnx2fc_work *work, *tmp;
 598         LIST_HEAD(work_list);
 599
 600         set_user_nice(current, -20);
 601         set_current_state(TASK_INTERRUPTIBLE);
 602         while (!kthread_should_stop()) {
 603                 schedule();
 604                 spin_lock_bh(&p->fp_work_lock);
 605                 while (!list_empty(&p->work_list)) {
 606                         list_splice_init(&p->work_list, &work_list);
 607                         spin_unlock_bh(&p->fp_work_lock);
 608
 609                         list_for_each_entry_safe(work, tmp, &work_list, list) {
 610                                 list_del_init(&work->list);
 611                                 bnx2fc_process_cq_compl(work->tgt, work->wqe);
 612                                 kfree(work);
 613                         }
 614
 615                         spin_lock_bh(&p->fp_work_lock);
 616                 }
 617                 __set_current_state(TASK_INTERRUPTIBLE);
 618                 spin_unlock_bh(&p->fp_work_lock);
 619         }
 620         __set_current_state(TASK_RUNNING);
 621
 622         return 0;
 623 }
 624
 625 static struct fc_host_statistics *bnx2fc_get_host_stats(struct Scsi_Host *shost)
 626 {
 627         struct fc_host_statistics *bnx2fc_stats;
 628         struct fc_lport *lport = shost_priv(shost);
 629         struct fcoe_port *port = lport_priv(lport);
 630         struct bnx2fc_interface *interface = port->priv;
 631         struct bnx2fc_hba *hba = interface->hba;
 632         struct fcoe_statistics_params *fw_stats;
 633         int rc = 0;
 634
 635         fw_stats = (struct fcoe_statistics_params *)hba->stats_buffer;
 636         if (!fw_stats)
 637                 return NULL;
 638
 639         bnx2fc_stats = fc_get_host_stats(shost);
 640
 641         init_completion(&hba->stat_req_done);
 642         if (bnx2fc_send_stat_req(hba))
 643                 return bnx2fc_stats;
 644         rc = wait_for_completion_timeout(&hba->stat_req_done, (2 * HZ));
 645         if (!rc) {
 646                 BNX2FC_HBA_DBG(lport, "FW stat req timed out\n");
 647                 return bnx2fc_stats;
 648         }
 649         bnx2fc_stats->invalid_crc_count += fw_stats->rx_stat2.fc_crc_cnt;
 650         bnx2fc_stats->tx_frames += fw_stats->tx_stat.fcoe_tx_pkt_cnt;
 651         bnx2fc_stats->tx_words += (fw_stats->tx_stat.fcoe_tx_byte_cnt) / 4;
 652         bnx2fc_stats->rx_frames += fw_stats->rx_stat0.fcoe_rx_pkt_cnt;
 653         bnx2fc_stats->rx_words += (fw_stats->rx_stat0.fcoe_rx_byte_cnt) / 4;
 654
 655         bnx2fc_stats->dumped_frames = 0;
 656         bnx2fc_stats->lip_count = 0;
 657         bnx2fc_stats->nos_count = 0;
 658         bnx2fc_stats->loss_of_sync_count = 0;
 659         bnx2fc_stats->loss_of_signal_count = 0;
 660         bnx2fc_stats->prim_seq_protocol_err_count = 0;
 661
 662         return bnx2fc_stats;
 663 }
 664
 665 static int bnx2fc_shost_config(struct fc_lport *lport, struct device *dev)
 666 {
 667         struct fcoe_port *port = lport_priv(lport);
 668         struct bnx2fc_interface *interface = port->priv;
 669         struct Scsi_Host *shost = lport->host;
 670         int rc = 0;
 671
 672         shost->max_cmd_len = BNX2FC_MAX_CMD_LEN;
 673         shost->max_lun = BNX2FC_MAX_LUN;
 674         shost->max_id = BNX2FC_MAX_FCP_TGT;
 675         shost->max_channel = 0;
 676         if (lport->vport)
 677                 shost->transportt = bnx2fc_vport_xport_template;
 678         else
 679                 shost->transportt = bnx2fc_transport_template;
 680
 681         /* Add the new host to SCSI-ml */
 682         rc = scsi_add_host(lport->host, dev);
 683         if (rc) {
 684                 printk(KERN_ERR PFX "Error on scsi_add_host\n");
 685                 return rc;
 686         }
 687         if (!lport->vport)
 688                 fc_host_max_npiv_vports(lport->host) = USHRT_MAX;
 689         sprintf(fc_host_symbolic_name(lport->host), "%s v%s over %s",
 690                 BNX2FC_NAME, BNX2FC_VERSION,
 691                 interface->netdev->name);
 692
 693         return 0;
 694 }
 695
 696 static void bnx2fc_link_speed_update(struct fc_lport *lport)
 697 {
 698         struct fcoe_port *port = lport_priv(lport);
 699         struct bnx2fc_interface *interface = port->priv;
 700         struct net_device *netdev = interface->netdev;
 701         struct ethtool_cmd ecmd;
 702
 703         if (!__ethtool_get_settings(netdev, &ecmd)) {
 704                 lport->link_supported_speeds &=
 705                         ~(FC_PORTSPEED_1GBIT | FC_PORTSPEED_10GBIT);
 706                 if (ecmd.supported & (SUPPORTED_1000baseT_Half |
 707                                       SUPPORTED_1000baseT_Full))
 708                         lport->link_supported_speeds |= FC_PORTSPEED_1GBIT;
 709                 if (ecmd.supported & SUPPORTED_10000baseT_Full)
 710                         lport->link_supported_speeds |= FC_PORTSPEED_10GBIT;
 711
 712                 switch (ethtool_cmd_speed(&ecmd)) {
 713                 case SPEED_1000:
 714                         lport->link_speed = FC_PORTSPEED_1GBIT;
 715                         break;
 716                 case SPEED_2500:
 717                         lport->link_speed = FC_PORTSPEED_2GBIT;
 718                         break;
 719                 case SPEED_10000:
 720                         lport->link_speed = FC_PORTSPEED_10GBIT;
 721                         break;
 722                 }
 723         }
 724 }
 725 static int bnx2fc_link_ok(struct fc_lport *lport)
 726 {
 727         struct fcoe_port *port = lport_priv(lport);
 728         struct bnx2fc_interface *interface = port->priv;
 729         struct bnx2fc_hba *hba = interface->hba;
 730         struct net_device *dev = hba->phys_dev;
 731         int rc = 0;
 732
 733         if ((dev->flags & IFF_UP) && netif_carrier_ok(dev))
 734                 clear_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
 735         else {
 736                 set_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
 737                 rc = -1;
 738         }
 739         return rc;
 740 }
 741
 742 /**
 743  * bnx2fc_get_link_state - get network link state
 744  *
 745  * @hba:        adapter instance pointer
 746  *
 747  * updates adapter structure flag based on netdev state
 748  */
 749 void bnx2fc_get_link_state(struct bnx2fc_hba *hba)
 750 {
 751         if (test_bit(__LINK_STATE_NOCARRIER, &hba->phys_dev->state))
 752                 set_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
 753         else
 754                 clear_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
 755 }
 756
 757 static int bnx2fc_net_config(struct fc_lport *lport, struct net_device *netdev)
 758 {
 759         struct bnx2fc_hba *hba;
 760         struct bnx2fc_interface *interface;
 761         struct fcoe_port *port;
 762         u64 wwnn, wwpn;
 763
 764         port = lport_priv(lport);
 765         interface = port->priv;
 766         hba = interface->hba;
 767
 768         /* require support for get_pauseparam ethtool op. */
 769         if (!hba->phys_dev->ethtool_ops ||
 770             !hba->phys_dev->ethtool_ops->get_pauseparam)
 771                 return -EOPNOTSUPP;
 772
 773         if (fc_set_mfs(lport, BNX2FC_MFS))
 774                 return -EINVAL;
 775
 776         skb_queue_head_init(&port->fcoe_pending_queue);
 777         port->fcoe_pending_queue_active = 0;
 778         setup_timer(&port->timer, fcoe_queue_timer, (unsigned long) lport);
 779
 780         bnx2fc_link_speed_update(lport);
 781
 782         if (!lport->vport) {
 783                 if (fcoe_get_wwn(netdev, &wwnn, NETDEV_FCOE_WWNN))
 784                         wwnn = fcoe_wwn_from_mac(interface->ctlr.ctl_src_addr,
 785                                                  1, 0);
 786                 BNX2FC_HBA_DBG(lport, "WWNN = 0x%llx\n", wwnn);
 787                 fc_set_wwnn(lport, wwnn);
 788
 789                 if (fcoe_get_wwn(netdev, &wwpn, NETDEV_FCOE_WWPN))
 790                         wwpn = fcoe_wwn_from_mac(interface->ctlr.ctl_src_addr,
 791                                                  2, 0);
 792
 793                 BNX2FC_HBA_DBG(lport, "WWPN = 0x%llx\n", wwpn);
 794                 fc_set_wwpn(lport, wwpn);
 795         }
 796
 797         return 0;
 798 }
 799
 800 static void bnx2fc_destroy_timer(unsigned long data)
 801 {
 802         struct bnx2fc_hba *hba = (struct bnx2fc_hba *)data;
 803
 804         printk(KERN_ERR PFX "ERROR:bnx2fc_destroy_timer - "
 805                "Destroy compl not received!!\n");
 806         set_bit(BNX2FC_FLAG_DESTROY_CMPL, &hba->flags);
 807         wake_up_interruptible(&hba->destroy_wait);
 808 }
 809
 810 /**
 811  * bnx2fc_indicate_netevent - Generic netdev event handler
 812  *
 813  * @context:    adapter structure pointer
 814  * @event:      event type
 815  * @vlan_id:    vlan id - associated vlan id with this event
 816  *
 817  * Handles NETDEV_UP, NETDEV_DOWN, NETDEV_GOING_DOWN,NETDEV_CHANGE and
 818  * NETDEV_CHANGE_MTU events. Handle NETDEV_UNREGISTER only for vlans.
 819  */
 820 static void bnx2fc_indicate_netevent(void *context, unsigned long event,
 821                                      u16 vlan_id)
 822 {
 823         struct bnx2fc_hba *hba = (struct bnx2fc_hba *)context;
 824         struct fc_lport *lport;
 825         struct fc_lport *vport;
 826         struct bnx2fc_interface *interface, *tmp;
 827         int wait_for_upload = 0;
 828         u32 link_possible = 1;
 829
 830         if (vlan_id != 0 && event != NETDEV_UNREGISTER)
 831                 return;
 832
 833         switch (event) {
 834         case NETDEV_UP:
 835                 if (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state))
 836                         printk(KERN_ERR "indicate_netevent: "\
 837                                         "hba is not UP!!\n");
 838                 break;
 839
 840         case NETDEV_DOWN:
 841                 clear_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state);
 842                 clear_bit(ADAPTER_STATE_UP, &hba->adapter_state);
 843                 link_possible = 0;
 844                 break;
 845
 846         case NETDEV_GOING_DOWN:
 847                 set_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state);
 848                 link_possible = 0;
 849                 break;
 850
 851         case NETDEV_CHANGE:
 852                 break;
 853
 854         case NETDEV_UNREGISTER:
 855                 if (!vlan_id)
 856                         return;
 857                 mutex_lock(&bnx2fc_dev_lock);
 858                 list_for_each_entry_safe(interface, tmp, &if_list, list) {
 859                         if (interface->hba == hba &&
 860                             interface->vlan_id == (vlan_id & VLAN_VID_MASK))
 861                                 __bnx2fc_destroy(interface);
 862                 }
 863                 mutex_unlock(&bnx2fc_dev_lock);
 864                 return;
 865
 866         default:
 867                 printk(KERN_ERR PFX "Unkonwn netevent %ld", event);
 868                 return;
 869         }
 870
 871         mutex_lock(&bnx2fc_dev_lock);
 872         list_for_each_entry(interface, &if_list, list) {
 873
 874                 if (interface->hba != hba)
 875                         continue;
 876
 877                 lport = interface->ctlr.lp;
 878                 BNX2FC_HBA_DBG(lport, "netevent handler - event=%s %ld\n",
 879                                 interface->netdev->name, event);
 880
 881                 bnx2fc_link_speed_update(lport);
 882
 883                 if (link_possible && !bnx2fc_link_ok(lport)) {
 884                         /* Reset max recv frame size to default */
 885                         fc_set_mfs(lport, BNX2FC_MFS);
 886                         /*
 887                          * ctlr link up will only be handled during
 888                          * enable to avoid sending discovery solicitation
 889                          * on a stale vlan
 890                          */
 891                         if (interface->enabled)
 892                                 fcoe_ctlr_link_up(&interface->ctlr);
 893                 } else if (fcoe_ctlr_link_down(&interface->ctlr)) {
 894                         mutex_lock(&lport->lp_mutex);
 895                         list_for_each_entry(vport, &lport->vports, list)
 896                                 fc_host_port_type(vport->host) =
 897                                                         FC_PORTTYPE_UNKNOWN;
 898                         mutex_unlock(&lport->lp_mutex);
 899                         fc_host_port_type(lport->host) = FC_PORTTYPE_UNKNOWN;
 900                         per_cpu_ptr(lport->dev_stats,
 901                                     get_cpu())->LinkFailureCount++;
 902                         put_cpu();
 903                         fcoe_clean_pending_queue(lport);
 904                         wait_for_upload = 1;
 905                 }
 906         }
 907         mutex_unlock(&bnx2fc_dev_lock);
 908
 909         if (wait_for_upload) {
 910                 clear_bit(ADAPTER_STATE_READY, &hba->adapter_state);
 911                 init_waitqueue_head(&hba->shutdown_wait);
 912                 BNX2FC_MISC_DBG("indicate_netevent "
 913                                 "num_ofld_sess = %d\n",
 914                                 hba->num_ofld_sess);
 915                 hba->wait_for_link_down = 1;
 916                 wait_event_interruptible(hba->shutdown_wait,
 917                                          (hba->num_ofld_sess == 0));
 918                 BNX2FC_MISC_DBG("wakeup - num_ofld_sess = %d\n",
 919                                 hba->num_ofld_sess);
 920                 hba->wait_for_link_down = 0;
 921
 922                 if (signal_pending(current))
 923                         flush_signals(current);
 924         }
 925 }
 926
 927 static int bnx2fc_libfc_config(struct fc_lport *lport)
 928 {
 929
 930         /* Set the function pointers set by bnx2fc driver */
 931         memcpy(&lport->tt, &bnx2fc_libfc_fcn_templ,
 932                 sizeof(struct libfc_function_template));
 933         fc_elsct_init(lport);
 934         fc_exch_init(lport);
 935         fc_rport_init(lport);
 936         fc_disc_init(lport);
 937         return 0;
 938 }
 939
 940 static int bnx2fc_em_config(struct fc_lport *lport)
 941 {
 942         int max_xid;
 943
 944         if (nr_cpu_ids <= 2)
 945                 max_xid = FCOE_XIDS_PER_CPU;
 946         else
 947                 max_xid = FCOE_MAX_XID;
 948         if (!fc_exch_mgr_alloc(lport, FC_CLASS_3, FCOE_MIN_XID,
 949                                 max_xid, NULL)) {
 950                 printk(KERN_ERR PFX "em_config:fc_exch_mgr_alloc failed\n");
 951                 return -ENOMEM;
 952         }
 953
 954         return 0;
 955 }
 956
 957 static int bnx2fc_lport_config(struct fc_lport *lport)
 958 {
 959         lport->link_up = 0;
 960         lport->qfull = 0;
 961         lport->max_retry_count = BNX2FC_MAX_RETRY_CNT;
 962         lport->max_rport_retry_count = BNX2FC_MAX_RPORT_RETRY_CNT;
 963         lport->e_d_tov = 2 * 1000;
 964         lport->r_a_tov = 10 * 1000;
 965
 966         lport->service_params = (FCP_SPPF_INIT_FCN | FCP_SPPF_RD_XRDY_DIS |
 967                                 FCP_SPPF_RETRY | FCP_SPPF_CONF_COMPL);
 968         lport->does_npiv = 1;
 969
 970         memset(&lport->rnid_gen, 0, sizeof(struct fc_els_rnid_gen));
 971         lport->rnid_gen.rnid_atype = BNX2FC_RNID_HBA;
 972
 973         /* alloc stats structure */
 974         if (fc_lport_init_stats(lport))
 975                 return -ENOMEM;
 976
 977         /* Finish fc_lport configuration */
 978         fc_lport_config(lport);
 979
 980         return 0;
 981 }
 982
 983 /**
 984  * bnx2fc_fip_recv - handle a received FIP frame.
 985  *
 986  * @skb: the received skb
 987  * @dev: associated &net_device
 988  * @ptype: the &packet_type structure which was used to register this handler.
 989  * @orig_dev: original receive &net_device, in case @ dev is a bond.
 990  *
 991  * Returns: 0 for success
 992  */
 993 static int bnx2fc_fip_recv(struct sk_buff *skb, struct net_device *dev,
 994                            struct packet_type *ptype,
 995                            struct net_device *orig_dev)
 996 {
 997         struct bnx2fc_interface *interface;
 998         interface = container_of(ptype, struct bnx2fc_interface,
 999                                  fip_packet_type);
1000         fcoe_ctlr_recv(&interface->ctlr, skb);
1001         return 0;
1002 }
1003
1004 /**
1005  * bnx2fc_update_src_mac - Update Ethernet MAC filters.
1006  *
1007  * @fip: FCoE controller.
1008  * @old: Unicast MAC address to delete if the MAC is non-zero.
1009  * @new: Unicast MAC address to add.
1010  *
1011  * Remove any previously-set unicast MAC filter.
1012  * Add secondary FCoE MAC address filter for our OUI.
1013  */
1014 static void bnx2fc_update_src_mac(struct fc_lport *lport, u8 *addr)
1015 {
1016         struct fcoe_port *port = lport_priv(lport);
1017
1018         memcpy(port->data_src_addr, addr, ETH_ALEN);
1019 }
1020
1021 /**
1022  * bnx2fc_get_src_mac - return the ethernet source address for an lport
1023  *
1024  * @lport: libfc port
1025  */
1026 static u8 *bnx2fc_get_src_mac(struct fc_lport *lport)
1027 {
1028         struct fcoe_port *port;
1029
1030         port = (struct fcoe_port *)lport_priv(lport);
1031         return port->data_src_addr;
1032 }
1033
1034 /**
1035  * bnx2fc_fip_send - send an Ethernet-encapsulated FIP frame.
1036  *
1037  * @fip: FCoE controller.
1038  * @skb: FIP Packet.
1039  */
1040 static void bnx2fc_fip_send(struct fcoe_ctlr *fip, struct sk_buff *skb)
1041 {
1042         skb->dev = bnx2fc_from_ctlr(fip)->netdev;
1043         dev_queue_xmit(skb);
1044 }
1045
1046 static int bnx2fc_vport_create(struct fc_vport *vport, bool disabled)
1047 {
1048         struct Scsi_Host *shost = vport_to_shost(vport);
1049         struct fc_lport *n_port = shost_priv(shost);
1050         struct fcoe_port *port = lport_priv(n_port);
1051         struct bnx2fc_interface *interface = port->priv;
1052         struct net_device *netdev = interface->netdev;
1053         struct fc_lport *vn_port;
1054         int rc;
1055         char buf[32];
1056
1057         rc = fcoe_validate_vport_create(vport);
1058         if (rc) {
1059                 fcoe_wwn_to_str(vport->port_name, buf, sizeof(buf));
1060                 printk(KERN_ERR PFX "Failed to create vport, "
1061                        "WWPN (0x%s) already exists\n",
1062                        buf);
1063                 return rc;
1064         }
1065
1066         if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &interface->hba->flags)) {
1067                 printk(KERN_ERR PFX "vn ports cannot be created on"
1068                         "this interface\n");
1069                 return -EIO;
1070         }
1071         rtnl_lock();
1072         mutex_lock(&bnx2fc_dev_lock);
1073         vn_port = bnx2fc_if_create(interface, &vport->dev, 1);
1074         mutex_unlock(&bnx2fc_dev_lock);
1075         rtnl_unlock();
1076
1077         if (IS_ERR(vn_port)) {
1078                 printk(KERN_ERR PFX "bnx2fc_vport_create (%s) failed\n",
1079                         netdev->name);
1080                 return -EIO;
1081         }
1082
1083         if (disabled) {
1084                 fc_vport_set_state(vport, FC_VPORT_DISABLED);
1085         } else {
1086                 vn_port->boot_time = jiffies;
1087                 fc_lport_init(vn_port);
1088                 fc_fabric_login(vn_port);
1089                 fc_vport_setlink(vn_port);
1090         }
1091         return 0;
1092 }
1093
1094 static void bnx2fc_free_vport(struct bnx2fc_hba *hba, struct fc_lport *lport)
1095 {
1096         struct bnx2fc_lport *blport, *tmp;
1097
1098         spin_lock_bh(&hba->hba_lock);
1099         list_for_each_entry_safe(blport, tmp, &hba->vports, list) {
1100                 if (blport->lport == lport) {
1101                         list_del(&blport->list);
1102                         kfree(blport);
1103                 }
1104         }
1105         spin_unlock_bh(&hba->hba_lock);
1106 }
1107
1108 static int bnx2fc_vport_destroy(struct fc_vport *vport)
1109 {
1110         struct Scsi_Host *shost = vport_to_shost(vport);
1111         struct fc_lport *n_port = shost_priv(shost);
1112         struct fc_lport *vn_port = vport->dd_data;
1113         struct fcoe_port *port = lport_priv(vn_port);
1114         struct bnx2fc_interface *interface = port->priv;
1115         struct fc_lport *v_port;
1116         bool found = false;
1117
1118         mutex_lock(&n_port->lp_mutex);
1119         list_for_each_entry(v_port, &n_port->vports, list)
1120                 if (v_port->vport == vport) {
1121                         found = true;
1122                         break;
1123                 }
1124
1125         if (!found) {
1126                 mutex_unlock(&n_port->lp_mutex);
1127                 return -ENOENT;
1128         }
1129         list_del(&vn_port->list);
1130         mutex_unlock(&n_port->lp_mutex);
1131         bnx2fc_free_vport(interface->hba, port->lport);
1132         bnx2fc_port_shutdown(port->lport);
1133         bnx2fc_interface_put(interface);
1134         queue_work(bnx2fc_wq, &port->destroy_work);
1135         return 0;
1136 }
1137
1138 static int bnx2fc_vport_disable(struct fc_vport *vport, bool disable)
1139 {
1140         struct fc_lport *lport = vport->dd_data;
1141
1142         if (disable) {
1143                 fc_vport_set_state(vport, FC_VPORT_DISABLED);
1144                 fc_fabric_logoff(lport);
1145         } else {
1146                 lport->boot_time = jiffies;
1147                 fc_fabric_login(lport);
1148                 fc_vport_setlink(lport);
1149         }
1150         return 0;
1151 }
1152
1153
1154 static int bnx2fc_interface_setup(struct bnx2fc_interface *interface)
1155 {
1156         struct net_device *netdev = interface->netdev;
1157         struct net_device *physdev = interface->hba->phys_dev;
1158         struct netdev_hw_addr *ha;
1159         int sel_san_mac = 0;
1160
1161         /* setup Source MAC Address */
1162         rcu_read_lock();
1163         for_each_dev_addr(physdev, ha) {
1164                 BNX2FC_MISC_DBG("net_config: ha->type = %d, fip_mac = ",
1165                                 ha->type);
1166                 printk(KERN_INFO "%2x:%2x:%2x:%2x:%2x:%2x\n", ha->addr[0],
1167                                 ha->addr[1], ha->addr[2], ha->addr[3],
1168                                 ha->addr[4], ha->addr[5]);
1169
1170                 if ((ha->type == NETDEV_HW_ADDR_T_SAN) &&
1171                     (is_valid_ether_addr(ha->addr))) {
1172                         memcpy(interface->ctlr.ctl_src_addr, ha->addr,
1173                                ETH_ALEN);
1174                         sel_san_mac = 1;
1175                         BNX2FC_MISC_DBG("Found SAN MAC\n");
1176                 }
1177         }
1178         rcu_read_unlock();
1179
1180         if (!sel_san_mac)
1181                 return -ENODEV;
1182
1183         interface->fip_packet_type.func = bnx2fc_fip_recv;
1184         interface->fip_packet_type.type = htons(ETH_P_FIP);
1185         interface->fip_packet_type.dev = netdev;
1186         dev_add_pack(&interface->fip_packet_type);
1187
1188         interface->fcoe_packet_type.func = bnx2fc_rcv;
1189         interface->fcoe_packet_type.type = __constant_htons(ETH_P_FCOE);
1190         interface->fcoe_packet_type.dev = netdev;
1191         dev_add_pack(&interface->fcoe_packet_type);
1192
1193         return 0;
1194 }
1195
1196 static int bnx2fc_attach_transport(void)
1197 {
1198         bnx2fc_transport_template =
1199                 fc_attach_transport(&bnx2fc_transport_function);
1200
1201         if (bnx2fc_transport_template == NULL) {
1202                 printk(KERN_ERR PFX "Failed to attach FC transport\n");
1203                 return -ENODEV;
1204         }
1205
1206         bnx2fc_vport_xport_template =
1207                 fc_attach_transport(&bnx2fc_vport_xport_function);
1208         if (bnx2fc_vport_xport_template == NULL) {
1209                 printk(KERN_ERR PFX
1210                        "Failed to attach FC transport for vport\n");
1211                 fc_release_transport(bnx2fc_transport_template);
1212                 bnx2fc_transport_template = NULL;
1213                 return -ENODEV;
1214         }
1215         return 0;
1216 }
1217 static void bnx2fc_release_transport(void)
1218 {
1219         fc_release_transport(bnx2fc_transport_template);
1220         fc_release_transport(bnx2fc_vport_xport_template);
1221         bnx2fc_transport_template = NULL;
1222         bnx2fc_vport_xport_template = NULL;
1223 }
1224
1225 static void bnx2fc_interface_release(struct kref *kref)
1226 {
1227         struct bnx2fc_interface *interface;
1228         struct net_device *netdev;
1229
1230         interface = container_of(kref, struct bnx2fc_interface, kref);
1231         BNX2FC_MISC_DBG("Interface is being released\n");
1232
1233         netdev = interface->netdev;
1234
1235         /* tear-down FIP controller */
1236         if (test_and_clear_bit(BNX2FC_CTLR_INIT_DONE, &interface->if_flags))
1237                 fcoe_ctlr_destroy(&interface->ctlr);
1238
1239         kfree(interface);
1240
1241         dev_put(netdev);
1242         module_put(THIS_MODULE);
1243 }
1244
1245 static inline void bnx2fc_interface_get(struct bnx2fc_interface *interface)
1246 {
1247         kref_get(&interface->kref);
1248 }
1249
1250 static inline void bnx2fc_interface_put(struct bnx2fc_interface *interface)
1251 {
1252         kref_put(&interface->kref, bnx2fc_interface_release);
1253 }
1254 static void bnx2fc_hba_destroy(struct bnx2fc_hba *hba)
1255 {
1256         /* Free the command manager */
1257         if (hba->cmd_mgr) {
1258                 bnx2fc_cmd_mgr_free(hba->cmd_mgr);
1259                 hba->cmd_mgr = NULL;
1260         }
1261         kfree(hba->tgt_ofld_list);
1262         bnx2fc_unbind_pcidev(hba);
1263         kfree(hba);
1264 }
1265
1266 /**
1267  * bnx2fc_hba_create - create a new bnx2fc hba
1268  *
1269  * @cnic:       pointer to cnic device
1270  *
1271  * Creates a new FCoE hba on the given device.
1272  *
1273  */
1274 static struct bnx2fc_hba *bnx2fc_hba_create(struct cnic_dev *cnic)
1275 {
1276         struct bnx2fc_hba *hba;
1277         int rc;
1278
1279         hba = kzalloc(sizeof(*hba), GFP_KERNEL);
1280         if (!hba) {
1281                 printk(KERN_ERR PFX "Unable to allocate hba structure\n");
1282                 return NULL;
1283         }
1284         spin_lock_init(&hba->hba_lock);
1285         mutex_init(&hba->hba_mutex);
1286
1287         hba->cnic = cnic;
1288         rc = bnx2fc_bind_pcidev(hba);
1289         if (rc) {
1290                 printk(KERN_ERR PFX "create_adapter:  bind error\n");
1291                 goto bind_err;
1292         }
1293         hba->phys_dev = cnic->netdev;
1294         hba->next_conn_id = 0;
1295
1296         hba->tgt_ofld_list =
1297                 kzalloc(sizeof(struct bnx2fc_rport *) * BNX2FC_NUM_MAX_SESS,
1298                         GFP_KERNEL);
1299         if (!hba->tgt_ofld_list) {
1300                 printk(KERN_ERR PFX "Unable to allocate tgt offload list\n");
1301                 goto tgtofld_err;
1302         }
1303
1304         hba->num_ofld_sess = 0;
1305
1306         hba->cmd_mgr = bnx2fc_cmd_mgr_alloc(hba, BNX2FC_MIN_XID,
1307                                                 BNX2FC_MAX_XID);
1308         if (!hba->cmd_mgr) {
1309                 printk(KERN_ERR PFX "em_config:bnx2fc_cmd_mgr_alloc failed\n");
1310                 goto cmgr_err;
1311         }
1312
1313         init_waitqueue_head(&hba->shutdown_wait);
1314         init_waitqueue_head(&hba->destroy_wait);
1315         INIT_LIST_HEAD(&hba->vports);
1316
1317         return hba;
1318
1319 cmgr_err:
1320         kfree(hba->tgt_ofld_list);
1321 tgtofld_err:
1322         bnx2fc_unbind_pcidev(hba);
1323 bind_err:
1324         kfree(hba);
1325         return NULL;
1326 }
1327
1328 struct bnx2fc_interface *bnx2fc_interface_create(struct bnx2fc_hba *hba,
1329                                       struct net_device *netdev,
1330                                       enum fip_state fip_mode)
1331 {
1332         struct bnx2fc_interface *interface;
1333         int rc = 0;
1334
1335         interface = kzalloc(sizeof(*interface), GFP_KERNEL);
1336         if (!interface) {
1337                 printk(KERN_ERR PFX "Unable to allocate interface structure\n");
1338                 return NULL;
1339         }
1340         dev_hold(netdev);
1341         kref_init(&interface->kref);
1342         interface->hba = hba;
1343         interface->netdev = netdev;
1344
1345         /* Initialize FIP */
1346         fcoe_ctlr_init(&interface->ctlr, fip_mode);
1347         interface->ctlr.send = bnx2fc_fip_send;
1348         interface->ctlr.update_mac = bnx2fc_update_src_mac;
1349         interface->ctlr.get_src_addr = bnx2fc_get_src_mac;
1350         set_bit(BNX2FC_CTLR_INIT_DONE, &interface->if_flags);
1351
1352         rc = bnx2fc_interface_setup(interface);
1353         if (!rc)
1354                 return interface;
1355
1356         fcoe_ctlr_destroy(&interface->ctlr);
1357         dev_put(netdev);
1358         kfree(interface);
1359         return NULL;
1360 }
1361
1362 /**
1363  * bnx2fc_if_create - Create FCoE instance on a given interface
1364  *
1365  * @interface:  FCoE interface to create a local port on
1366  * @parent:     Device pointer to be the parent in sysfs for the SCSI host
1367  * @npiv:       Indicates if the port is vport or not
1368  *
1369  * Creates a fc_lport instance and a Scsi_Host instance and configure them.
1370  *
1371  * Returns:     Allocated fc_lport or an error pointer
1372  */
1373 static struct fc_lport *bnx2fc_if_create(struct bnx2fc_interface *interface,
1374                                   struct device *parent, int npiv)
1375 {
1376         struct fc_lport         *lport, *n_port;
1377         struct fcoe_port        *port;
1378         struct Scsi_Host        *shost;
1379         struct fc_vport         *vport = dev_to_vport(parent);
1380         struct bnx2fc_lport     *blport;
1381         struct bnx2fc_hba       *hba;
1382         int                     rc = 0;
1383
1384         blport = kzalloc(sizeof(struct bnx2fc_lport), GFP_KERNEL);
1385         if (!blport) {
1386                 BNX2FC_HBA_DBG(interface->ctlr.lp, "Unable to alloc blport\n");
1387                 return NULL;
1388         }
1389
1390         /* Allocate Scsi_Host structure */
1391         if (!npiv)
1392                 lport = libfc_host_alloc(&bnx2fc_shost_template, sizeof(*port));
1393         else
1394                 lport = libfc_vport_create(vport, sizeof(*port));
1395
1396         if (!lport) {
1397                 printk(KERN_ERR PFX "could not allocate scsi host structure\n");
1398                 goto free_blport;
1399         }
1400         shost = lport->host;
1401         port = lport_priv(lport);
1402         port->lport = lport;
1403         port->priv = interface;
1404         INIT_WORK(&port->destroy_work, bnx2fc_destroy_work);
1405
1406         /* Configure fcoe_port */
1407         rc = bnx2fc_lport_config(lport);
1408         if (rc)
1409                 goto lp_config_err;
1410
1411         if (npiv) {
1412                 printk(KERN_ERR PFX "Setting vport names, 0x%llX 0x%llX\n",
1413                         vport->node_name, vport->port_name);
1414                 fc_set_wwnn(lport, vport->node_name);
1415                 fc_set_wwpn(lport, vport->port_name);
1416         }
1417         /* Configure netdev and networking properties of the lport */
1418         rc = bnx2fc_net_config(lport, interface->netdev);
1419         if (rc) {
1420                 printk(KERN_ERR PFX "Error on bnx2fc_net_config\n");
1421                 goto lp_config_err;
1422         }
1423
1424         rc = bnx2fc_shost_config(lport, parent);
1425         if (rc) {
1426                 printk(KERN_ERR PFX "Couldnt configure shost for %s\n",
1427                         interface->netdev->name);
1428                 goto lp_config_err;
1429         }
1430
1431         /* Initialize the libfc library */
1432         rc = bnx2fc_libfc_config(lport);
1433         if (rc) {
1434                 printk(KERN_ERR PFX "Couldnt configure libfc\n");
1435                 goto shost_err;
1436         }
1437         fc_host_port_type(lport->host) = FC_PORTTYPE_UNKNOWN;
1438
1439         /* Allocate exchange manager */
1440         if (!npiv)
1441                 rc = bnx2fc_em_config(lport);
1442         else {
1443                 shost = vport_to_shost(vport);
1444                 n_port = shost_priv(shost);
1445                 rc = fc_exch_mgr_list_clone(n_port, lport);
1446         }
1447
1448         if (rc) {
1449                 printk(KERN_ERR PFX "Error on bnx2fc_em_config\n");
1450                 goto shost_err;
1451         }
1452
1453         bnx2fc_interface_get(interface);
1454
1455         hba = interface->hba;
1456         spin_lock_bh(&hba->hba_lock);
1457         blport->lport = lport;
1458         list_add_tail(&blport->list, &hba->vports);
1459         spin_unlock_bh(&hba->hba_lock);
1460
1461         return lport;
1462
1463 shost_err:
1464         scsi_remove_host(shost);
1465 lp_config_err:
1466         scsi_host_put(lport->host);
1467 free_blport:
1468         kfree(blport);
1469         return NULL;
1470 }
1471
1472 static void bnx2fc_net_cleanup(struct bnx2fc_interface *interface)
1473 {
1474         /* Dont listen for Ethernet packets anymore */
1475         __dev_remove_pack(&interface->fcoe_packet_type);
1476         __dev_remove_pack(&interface->fip_packet_type);
1477         synchronize_net();
1478 }
1479
1480 static void bnx2fc_interface_cleanup(struct bnx2fc_interface *interface)
1481 {
1482         struct fc_lport *lport = interface->ctlr.lp;
1483         struct fcoe_port *port = lport_priv(lport);
1484         struct bnx2fc_hba *hba = interface->hba;
1485
1486         /* Stop the transmit retry timer */
1487         del_timer_sync(&port->timer);
1488
1489         /* Free existing transmit skbs */
1490         fcoe_clean_pending_queue(lport);
1491
1492         bnx2fc_net_cleanup(interface);
1493
1494         bnx2fc_free_vport(hba, lport);
1495 }
1496
1497 static void bnx2fc_if_destroy(struct fc_lport *lport)
1498 {
1499
1500         /* Free queued packets for the receive thread */
1501         bnx2fc_clean_rx_queue(lport);
1502
1503         /* Detach from scsi-ml */
1504         fc_remove_host(lport->host);
1505         scsi_remove_host(lport->host);
1506
1507         /*
1508          * Note that only the physical lport will have the exchange manager.
1509          * for vports, this function is NOP
1510          */
1511         fc_exch_mgr_free(lport);
1512
1513         /* Free memory used by statistical counters */
1514         fc_lport_free_stats(lport);
1515
1516         /* Release Scsi_Host */
1517         scsi_host_put(lport->host);
1518 }
1519
1520 static void __bnx2fc_destroy(struct bnx2fc_interface *interface)
1521 {
1522         struct fc_lport *lport = interface->ctlr.lp;
1523         struct fcoe_port *port = lport_priv(lport);
1524
1525         bnx2fc_interface_cleanup(interface);
1526         bnx2fc_stop(interface);
1527         list_del(&interface->list);
1528         bnx2fc_interface_put(interface);
1529         queue_work(bnx2fc_wq, &port->destroy_work);
1530 }
1531
1532 /**
1533  * bnx2fc_destroy - Destroy a bnx2fc FCoE interface
1534  *
1535  * @buffer: The name of the Ethernet interface to be destroyed
1536  * @kp:     The associated kernel parameter
1537  *
1538  * Called from sysfs.
1539  *
1540  * Returns: 0 for success
1541  */
1542 static int bnx2fc_destroy(struct net_device *netdev)
1543 {
1544         struct bnx2fc_interface *interface = NULL;
1545         struct workqueue_struct *timer_work_queue;
1546         int rc = 0;
1547
1548         rtnl_lock();
1549         mutex_lock(&bnx2fc_dev_lock);
1550
1551         interface = bnx2fc_interface_lookup(netdev);
1552         if (!interface || !interface->ctlr.lp) {
1553                 rc = -ENODEV;
1554                 printk(KERN_ERR PFX "bnx2fc_destroy: interface or lport not found\n");
1555                 goto netdev_err;
1556         }
1557
1558         timer_work_queue = interface->timer_work_queue;
1559         __bnx2fc_destroy(interface);
1560         destroy_workqueue(timer_work_queue);
1561
1562 netdev_err:
1563         mutex_unlock(&bnx2fc_dev_lock);
1564         rtnl_unlock();
1565         return rc;
1566 }
1567
1568 static void bnx2fc_destroy_work(struct work_struct *work)
1569 {
1570         struct fcoe_port *port;
1571         struct fc_lport *lport;
1572
1573         port = container_of(work, struct fcoe_port, destroy_work);
1574         lport = port->lport;
1575
1576         BNX2FC_HBA_DBG(lport, "Entered bnx2fc_destroy_work\n");
1577
1578         bnx2fc_if_destroy(lport);
1579 }
1580
1581 static void bnx2fc_unbind_adapter_devices(struct bnx2fc_hba *hba)
1582 {
1583         bnx2fc_free_fw_resc(hba);
1584         bnx2fc_free_task_ctx(hba);
1585 }
1586
1587 /**
1588  * bnx2fc_bind_adapter_devices - binds bnx2fc adapter with the associated
1589  *                      pci structure
1590  *
1591  * @hba:                Adapter instance
1592  */
1593 static int bnx2fc_bind_adapter_devices(struct bnx2fc_hba *hba)
1594 {
1595         if (bnx2fc_setup_task_ctx(hba))
1596                 goto mem_err;
1597
1598         if (bnx2fc_setup_fw_resc(hba))
1599                 goto mem_err;
1600
1601         return 0;
1602 mem_err:
1603         bnx2fc_unbind_adapter_devices(hba);
1604         return -ENOMEM;
1605 }
1606
1607 static int bnx2fc_bind_pcidev(struct bnx2fc_hba *hba)
1608 {
1609         struct cnic_dev *cnic;
1610
1611         if (!hba->cnic) {
1612                 printk(KERN_ERR PFX "cnic is NULL\n");
1613                 return -ENODEV;
1614         }
1615         cnic = hba->cnic;
1616         hba->pcidev = cnic->pcidev;
1617         if (hba->pcidev)
1618                 pci_dev_get(hba->pcidev);
1619
1620         return 0;
1621 }
1622
1623 static void bnx2fc_unbind_pcidev(struct bnx2fc_hba *hba)
1624 {
1625         if (hba->pcidev)
1626                 pci_dev_put(hba->pcidev);
1627         hba->pcidev = NULL;
1628 }
1629
1630
1631
1632 /**
1633  * bnx2fc_ulp_start - cnic callback to initialize & start adapter instance
1634  *
1635  * @handle:     transport handle pointing to adapter struture
1636  *
1637  * This function maps adapter structure to pcidev structure and initiates
1638  *      firmware handshake to enable/initialize on-chip FCoE components.
1639  *      This bnx2fc - cnic interface api callback is used after following
1640  *      conditions are met -
1641  *      a) underlying network interface is up (marked by event NETDEV_UP
1642  *              from netdev
1643  *      b) bnx2fc adatper structure is registered.
1644  */
1645 static void bnx2fc_ulp_start(void *handle)
1646 {
1647         struct bnx2fc_hba *hba = handle;
1648         struct bnx2fc_interface *interface;
1649         struct fc_lport *lport;
1650
1651         mutex_lock(&bnx2fc_dev_lock);
1652
1653         if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags))
1654                 bnx2fc_fw_init(hba);
1655
1656         BNX2FC_MISC_DBG("bnx2fc started.\n");
1657
1658         list_for_each_entry(interface, &if_list, list) {
1659                 if (interface->hba == hba) {
1660                         lport = interface->ctlr.lp;
1661                         /* Kick off Fabric discovery*/
1662                         printk(KERN_ERR PFX "ulp_init: start discovery\n");
1663                         lport->tt.frame_send = bnx2fc_xmit;
1664                         bnx2fc_start_disc(interface);
1665                 }
1666         }
1667
1668         mutex_unlock(&bnx2fc_dev_lock);
1669 }
1670
1671 static void bnx2fc_port_shutdown(struct fc_lport *lport)
1672 {
1673         BNX2FC_MISC_DBG("Entered %s\n", __func__);
1674         fc_fabric_logoff(lport);
1675         fc_lport_destroy(lport);
1676 }
1677
1678 static void bnx2fc_stop(struct bnx2fc_interface *interface)
1679 {
1680         struct fc_lport *lport;
1681         struct fc_lport *vport;
1682
1683         if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &interface->hba->flags))
1684                 return;
1685
1686         lport = interface->ctlr.lp;
1687         bnx2fc_port_shutdown(lport);
1688
1689         mutex_lock(&lport->lp_mutex);
1690         list_for_each_entry(vport, &lport->vports, list)
1691                 fc_host_port_type(vport->host) =
1692                                         FC_PORTTYPE_UNKNOWN;
1693         mutex_unlock(&lport->lp_mutex);
1694         fc_host_port_type(lport->host) = FC_PORTTYPE_UNKNOWN;
1695         fcoe_ctlr_link_down(&interface->ctlr);
1696         fcoe_clean_pending_queue(lport);
1697 }
1698
1699 static int bnx2fc_fw_init(struct bnx2fc_hba *hba)
1700 {
1701 #define BNX2FC_INIT_POLL_TIME           (1000 / HZ)
1702         int rc = -1;
1703         int i = HZ;
1704
1705         rc = bnx2fc_bind_adapter_devices(hba);
1706         if (rc) {
1707                 printk(KERN_ALERT PFX
1708                         "bnx2fc_bind_adapter_devices failed - rc = %d\n", rc);
1709                 goto err_out;
1710         }
1711
1712         rc = bnx2fc_send_fw_fcoe_init_msg(hba);
1713         if (rc) {
1714                 printk(KERN_ALERT PFX
1715                         "bnx2fc_send_fw_fcoe_init_msg failed - rc = %d\n", rc);
1716                 goto err_unbind;
1717         }
1718
1719         /*
1720          * Wait until the adapter init message is complete, and adapter
1721          * state is UP.
1722          */
1723         while (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state) && i--)
1724                 msleep(BNX2FC_INIT_POLL_TIME);
1725
1726         if (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state)) {
1727                 printk(KERN_ERR PFX "bnx2fc_start: %s failed to initialize.  "
1728                                 "Ignoring...\n",
1729                                 hba->cnic->netdev->name);
1730                 rc = -1;
1731                 goto err_unbind;
1732         }
1733
1734
1735         set_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags);
1736         return 0;
1737
1738 err_unbind:
1739         bnx2fc_unbind_adapter_devices(hba);
1740 err_out:
1741         return rc;
1742 }
1743
1744 static void bnx2fc_fw_destroy(struct bnx2fc_hba *hba)
1745 {
1746         if (test_and_clear_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags)) {
1747                 if (bnx2fc_send_fw_fcoe_destroy_msg(hba) == 0) {
1748                         init_timer(&hba->destroy_timer);
1749                         hba->destroy_timer.expires = BNX2FC_FW_TIMEOUT +
1750                                                                 jiffies;
1751                         hba->destroy_timer.function = bnx2fc_destroy_timer;
1752                         hba->destroy_timer.data = (unsigned long)hba;
1753                         add_timer(&hba->destroy_timer);
1754                         wait_event_interruptible(hba->destroy_wait,
1755                                         test_bit(BNX2FC_FLAG_DESTROY_CMPL,
1756                                                  &hba->flags));
1757                         clear_bit(BNX2FC_FLAG_DESTROY_CMPL, &hba->flags);
1758                         /* This should never happen */
1759                         if (signal_pending(current))
1760                                 flush_signals(current);
1761
1762                         del_timer_sync(&hba->destroy_timer);
1763                 }
1764                 bnx2fc_unbind_adapter_devices(hba);
1765         }
1766 }
1767
1768 /**
1769  * bnx2fc_ulp_stop - cnic callback to shutdown adapter instance
1770  *
1771  * @handle:     transport handle pointing to adapter structure
1772  *
1773  * Driver checks if adapter is already in shutdown mode, if not start
1774  *      the shutdown process.
1775  */
1776 static void bnx2fc_ulp_stop(void *handle)
1777 {
1778         struct bnx2fc_hba *hba = handle;
1779         struct bnx2fc_interface *interface;
1780
1781         printk(KERN_ERR "ULP_STOP\n");
1782
1783         mutex_lock(&bnx2fc_dev_lock);
1784         if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags))
1785                 goto exit;
1786         list_for_each_entry(interface, &if_list, list) {
1787                 if (interface->hba == hba)
1788                         bnx2fc_stop(interface);
1789         }
1790         BUG_ON(hba->num_ofld_sess != 0);
1791
1792         mutex_lock(&hba->hba_mutex);
1793         clear_bit(ADAPTER_STATE_UP, &hba->adapter_state);
1794         clear_bit(ADAPTER_STATE_GOING_DOWN,
1795                   &hba->adapter_state);
1796
1797         clear_bit(ADAPTER_STATE_READY, &hba->adapter_state);
1798         mutex_unlock(&hba->hba_mutex);
1799
1800         bnx2fc_fw_destroy(hba);
1801 exit:
1802         mutex_unlock(&bnx2fc_dev_lock);
1803 }
1804
1805 static void bnx2fc_start_disc(struct bnx2fc_interface *interface)
1806 {
1807         struct fc_lport *lport;
1808         int wait_cnt = 0;
1809
1810         BNX2FC_MISC_DBG("Entered %s\n", __func__);
1811         /* Kick off FIP/FLOGI */
1812         if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &interface->hba->flags)) {
1813                 printk(KERN_ERR PFX "Init not done yet\n");
1814                 return;
1815         }
1816
1817         lport = interface->ctlr.lp;
1818         BNX2FC_HBA_DBG(lport, "calling fc_fabric_login\n");
1819
1820         if (!bnx2fc_link_ok(lport) && interface->enabled) {
1821                 BNX2FC_HBA_DBG(lport, "ctlr_link_up\n");
1822                 fcoe_ctlr_link_up(&interface->ctlr);
1823                 fc_host_port_type(lport->host) = FC_PORTTYPE_NPORT;
1824                 set_bit(ADAPTER_STATE_READY, &interface->hba->adapter_state);
1825         }
1826
1827         /* wait for the FCF to be selected before issuing FLOGI */
1828         while (!interface->ctlr.sel_fcf) {
1829                 msleep(250);
1830                 /* give up after 3 secs */
1831                 if (++wait_cnt > 12)
1832                         break;
1833         }
1834
1835         /* Reset max receive frame size to default */
1836         if (fc_set_mfs(lport, BNX2FC_MFS))
1837                 return;
1838
1839         fc_lport_init(lport);
1840         fc_fabric_login(lport);
1841 }
1842
1843
1844 /**
1845  * bnx2fc_ulp_init - Initialize an adapter instance
1846  *
1847  * @dev :       cnic device handle
1848  * Called from cnic_register_driver() context to initialize all
1849  *      enumerated cnic devices. This routine allocates adapter structure
1850  *      and other device specific resources.
1851  */
1852 static void bnx2fc_ulp_init(struct cnic_dev *dev)
1853 {
1854         struct bnx2fc_hba *hba;
1855         int rc = 0;
1856
1857         BNX2FC_MISC_DBG("Entered %s\n", __func__);
1858         /* bnx2fc works only when bnx2x is loaded */
1859         if (!test_bit(CNIC_F_BNX2X_CLASS, &dev->flags) ||
1860             (dev->max_fcoe_conn == 0)) {
1861                 printk(KERN_ERR PFX "bnx2fc FCoE not supported on %s,"
1862                                     " flags: %lx fcoe_conn: %d\n",
1863                         dev->netdev->name, dev->flags, dev->max_fcoe_conn);
1864                 return;
1865         }
1866
1867         hba = bnx2fc_hba_create(dev);
1868         if (!hba) {
1869                 printk(KERN_ERR PFX "hba initialization failed\n");
1870                 return;
1871         }
1872
1873         /* Add HBA to the adapter list */
1874         mutex_lock(&bnx2fc_dev_lock);
1875         list_add_tail(&hba->list, &adapter_list);
1876         adapter_count++;
1877         mutex_unlock(&bnx2fc_dev_lock);
1878
1879         clear_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic);
1880         rc = dev->register_device(dev, CNIC_ULP_FCOE,
1881                                                 (void *) hba);
1882         if (rc)
1883                 printk(KERN_ERR PFX "register_device failed, rc = %d\n", rc);
1884         else
1885                 set_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic);
1886 }
1887
1888
1889 static int bnx2fc_disable(struct net_device *netdev)
1890 {
1891         struct bnx2fc_interface *interface;
1892         int rc = 0;
1893
1894         rtnl_lock();
1895         mutex_lock(&bnx2fc_dev_lock);
1896
1897         interface = bnx2fc_interface_lookup(netdev);
1898         if (!interface || !interface->ctlr.lp) {
1899                 rc = -ENODEV;
1900                 printk(KERN_ERR PFX "bnx2fc_disable: interface or lport not found\n");
1901         } else {
1902                 interface->enabled = false;
1903                 fcoe_ctlr_link_down(&interface->ctlr);
1904                 fcoe_clean_pending_queue(interface->ctlr.lp);
1905         }
1906
1907         mutex_unlock(&bnx2fc_dev_lock);
1908         rtnl_unlock();
1909         return rc;
1910 }
1911
1912
1913 static int bnx2fc_enable(struct net_device *netdev)
1914 {
1915         struct bnx2fc_interface *interface;
1916         int rc = 0;
1917
1918         rtnl_lock();
1919         mutex_lock(&bnx2fc_dev_lock);
1920
1921         interface = bnx2fc_interface_lookup(netdev);
1922         if (!interface || !interface->ctlr.lp) {
1923                 rc = -ENODEV;
1924                 printk(KERN_ERR PFX "bnx2fc_enable: interface or lport not found\n");
1925         } else if (!bnx2fc_link_ok(interface->ctlr.lp)) {
1926                 fcoe_ctlr_link_up(&interface->ctlr);
1927                 interface->enabled = true;
1928         }
1929
1930         mutex_unlock(&bnx2fc_dev_lock);
1931         rtnl_unlock();
1932         return rc;
1933 }
1934
1935 /**
1936  * bnx2fc_create - Create bnx2fc FCoE interface
1937  *
1938  * @buffer: The name of Ethernet interface to create on
1939  * @kp:     The associated kernel param
1940  *
1941  * Called from sysfs.
1942  *
1943  * Returns: 0 for success
1944  */
1945 static int bnx2fc_create(struct net_device *netdev, enum fip_state fip_mode)
1946 {
1947         struct bnx2fc_interface *interface;
1948         struct bnx2fc_hba *hba;
1949         struct net_device *phys_dev;
1950         struct fc_lport *lport;
1951         struct ethtool_drvinfo drvinfo;
1952         int rc = 0;
1953         int vlan_id;
1954
1955         BNX2FC_MISC_DBG("Entered bnx2fc_create\n");
1956         if (fip_mode != FIP_MODE_FABRIC) {
1957                 printk(KERN_ERR "fip mode not FABRIC\n");
1958                 return -EIO;
1959         }
1960
1961         rtnl_lock();
1962
1963         mutex_lock(&bnx2fc_dev_lock);
1964
1965         if (!try_module_get(THIS_MODULE)) {
1966                 rc = -EINVAL;
1967                 goto mod_err;
1968         }
1969
1970         /* obtain physical netdev */
1971         if (netdev->priv_flags & IFF_802_1Q_VLAN) {
1972                 phys_dev = vlan_dev_real_dev(netdev);
1973                 vlan_id = vlan_dev_vlan_id(netdev);
1974         } else {
1975                 printk(KERN_ERR PFX "Not a vlan device\n");
1976                 rc = -EINVAL;
1977                 goto netdev_err;
1978         }
1979         /* verify if the physical device is a netxtreme2 device */
1980         if (phys_dev->ethtool_ops && phys_dev->ethtool_ops->get_drvinfo) {
1981                 memset(&drvinfo, 0, sizeof(drvinfo));
1982                 phys_dev->ethtool_ops->get_drvinfo(phys_dev, &drvinfo);
1983                 if (strncmp(drvinfo.driver, "bnx2x", strlen("bnx2x"))) {
1984                         printk(KERN_ERR PFX "Not a netxtreme2 device\n");
1985                         rc = -EINVAL;
1986                         goto netdev_err;
1987                 }
1988         } else {
1989                 printk(KERN_ERR PFX "unable to obtain drv_info\n");
1990                 rc = -EINVAL;
1991                 goto netdev_err;
1992         }
1993
1994         /* obtain interface and initialize rest of the structure */
1995         hba = bnx2fc_hba_lookup(phys_dev);
1996         if (!hba) {
1997                 rc = -ENODEV;
1998                 printk(KERN_ERR PFX "bnx2fc_create: hba not found\n");
1999                 goto netdev_err;
2000         }
2001
2002         if (bnx2fc_interface_lookup(netdev)) {
2003                 rc = -EEXIST;
2004                 goto netdev_err;
2005         }
2006
2007         interface = bnx2fc_interface_create(hba, netdev, fip_mode);
2008         if (!interface) {
2009                 printk(KERN_ERR PFX "bnx2fc_interface_create failed\n");
2010                 goto ifput_err;
2011         }
2012
2013         interface->vlan_id = vlan_id;
2014         interface->vlan_enabled = 1;
2015
2016         interface->timer_work_queue =
2017                         create_singlethread_workqueue("bnx2fc_timer_wq");
2018         if (!interface->timer_work_queue) {
2019                 printk(KERN_ERR PFX "ulp_init could not create timer_wq\n");
2020                 rc = -EINVAL;
2021                 goto ifput_err;
2022         }
2023
2024         lport = bnx2fc_if_create(interface, &interface->hba->pcidev->dev, 0);
2025         if (!lport) {
2026                 printk(KERN_ERR PFX "Failed to create interface (%s)\n",
2027                         netdev->name);
2028                 rc = -EINVAL;
2029                 goto if_create_err;
2030         }
2031
2032         /* Add interface to if_list */
2033         list_add_tail(&interface->list, &if_list);
2034
2035         lport->boot_time = jiffies;
2036
2037         /* Make this master N_port */
2038         interface->ctlr.lp = lport;
2039
2040         if (!bnx2fc_link_ok(lport)) {
2041                 fcoe_ctlr_link_up(&interface->ctlr);
2042                 fc_host_port_type(lport->host) = FC_PORTTYPE_NPORT;
2043                 set_bit(ADAPTER_STATE_READY, &interface->hba->adapter_state);
2044         }
2045
2046         BNX2FC_HBA_DBG(lport, "create: START DISC\n");
2047         bnx2fc_start_disc(interface);
2048         interface->enabled = true;
2049         /*
2050          * Release from kref_init in bnx2fc_interface_setup, on success
2051          * lport should be holding a reference taken in bnx2fc_if_create
2052          */
2053         bnx2fc_interface_put(interface);
2054         /* put netdev that was held while calling dev_get_by_name */
2055         mutex_unlock(&bnx2fc_dev_lock);
2056         rtnl_unlock();
2057         return 0;
2058
2059 if_create_err:
2060         destroy_workqueue(interface->timer_work_queue);
2061 ifput_err:
2062         bnx2fc_net_cleanup(interface);
2063         bnx2fc_interface_put(interface);
2064         goto mod_err;
2065 netdev_err:
2066         module_put(THIS_MODULE);
2067 mod_err:
2068         mutex_unlock(&bnx2fc_dev_lock);
2069         rtnl_unlock();
2070         return rc;
2071 }
2072
2073 /**
2074  * bnx2fc_find_hba_for_cnic - maps cnic instance to bnx2fc hba instance
2075  *
2076  * @cnic:       Pointer to cnic device instance
2077  *
2078  **/
2079 static struct bnx2fc_hba *bnx2fc_find_hba_for_cnic(struct cnic_dev *cnic)
2080 {
2081         struct list_head *list;
2082         struct list_head *temp;
2083         struct bnx2fc_hba *hba;
2084
2085         /* Called with bnx2fc_dev_lock held */
2086         list_for_each_safe(list, temp, &adapter_list) {
2087                 hba = (struct bnx2fc_hba *)list;
2088                 if (hba->cnic == cnic)
2089                         return hba;
2090         }
2091         return NULL;
2092 }
2093
2094 static struct bnx2fc_interface *bnx2fc_interface_lookup(struct net_device
2095                                                         *netdev)
2096 {
2097         struct bnx2fc_interface *interface;
2098
2099         /* Called with bnx2fc_dev_lock held */
2100         list_for_each_entry(interface, &if_list, list) {
2101                 if (interface->netdev == netdev)
2102                         return interface;
2103         }
2104         return NULL;
2105 }
2106
2107 static struct bnx2fc_hba *bnx2fc_hba_lookup(struct net_device
2108                                                       *phys_dev)
2109 {
2110         struct bnx2fc_hba *hba;
2111
2112         /* Called with bnx2fc_dev_lock held */
2113         list_for_each_entry(hba, &adapter_list, list) {
2114                 if (hba->phys_dev == phys_dev)
2115                         return hba;
2116         }
2117         printk(KERN_ERR PFX "adapter_lookup: hba NULL\n");
2118         return NULL;
2119 }
2120
2121 /**
2122  * bnx2fc_ulp_exit - shuts down adapter instance and frees all resources
2123  *
2124  * @dev         cnic device handle
2125  */
2126 static void bnx2fc_ulp_exit(struct cnic_dev *dev)
2127 {
2128         struct bnx2fc_hba *hba;
2129         struct bnx2fc_interface *interface, *tmp;
2130
2131         BNX2FC_MISC_DBG("Entered bnx2fc_ulp_exit\n");
2132
2133         if (!test_bit(CNIC_F_BNX2X_CLASS, &dev->flags)) {
2134                 printk(KERN_ERR PFX "bnx2fc port check: %s, flags: %lx\n",
2135                         dev->netdev->name, dev->flags);
2136                 return;
2137         }
2138
2139         mutex_lock(&bnx2fc_dev_lock);
2140         hba = bnx2fc_find_hba_for_cnic(dev);
2141         if (!hba) {
2142                 printk(KERN_ERR PFX "bnx2fc_ulp_exit: hba not found, dev 0%p\n",
2143                        dev);
2144                 mutex_unlock(&bnx2fc_dev_lock);
2145                 return;
2146         }
2147
2148         list_del_init(&hba->list);
2149         adapter_count--;
2150
2151         list_for_each_entry_safe(interface, tmp, &if_list, list)
2152                 /* destroy not called yet, move to quiesced list */
2153                 if (interface->hba == hba)
2154                         __bnx2fc_destroy(interface);
2155         mutex_unlock(&bnx2fc_dev_lock);
2156
2157         bnx2fc_ulp_stop(hba);
2158         /* unregister cnic device */
2159         if (test_and_clear_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic))
2160                 hba->cnic->unregister_device(hba->cnic, CNIC_ULP_FCOE);
2161         bnx2fc_hba_destroy(hba);
2162 }
2163
2164 /**
2165  * bnx2fc_fcoe_reset - Resets the fcoe
2166  *
2167  * @shost: shost the reset is from
2168  *
2169  * Returns: always 0
2170  */
2171 static int bnx2fc_fcoe_reset(struct Scsi_Host *shost)
2172 {
2173         struct fc_lport *lport = shost_priv(shost);
2174         fc_lport_reset(lport);
2175         return 0;
2176 }
2177
2178
2179 static bool bnx2fc_match(struct net_device *netdev)
2180 {
2181         mutex_lock(&bnx2fc_dev_lock);
2182         if (netdev->priv_flags & IFF_802_1Q_VLAN) {
2183                 struct net_device *phys_dev = vlan_dev_real_dev(netdev);
2184
2185                 if (bnx2fc_hba_lookup(phys_dev)) {
2186                         mutex_unlock(&bnx2fc_dev_lock);
2187                         return true;
2188                 }
2189         }
2190         mutex_unlock(&bnx2fc_dev_lock);
2191         return false;
2192 }
2193
2194
2195 static struct fcoe_transport bnx2fc_transport = {
2196         .name = {"bnx2fc"},
2197         .attached = false,
2198         .list = LIST_HEAD_INIT(bnx2fc_transport.list),
2199         .match = bnx2fc_match,
2200         .create = bnx2fc_create,
2201         .destroy = bnx2fc_destroy,
2202         .enable = bnx2fc_enable,
2203         .disable = bnx2fc_disable,
2204 };
2205
2206 /**
2207  * bnx2fc_percpu_thread_create - Create a receive thread for an
2208  *                               online CPU
2209  *
2210  * @cpu: cpu index for the online cpu
2211  */
2212 static void bnx2fc_percpu_thread_create(unsigned int cpu)
2213 {
2214         struct bnx2fc_percpu_s *p;
2215         struct task_struct *thread;
2216
2217         p = &per_cpu(bnx2fc_percpu, cpu);
2218
2219         thread = kthread_create(bnx2fc_percpu_io_thread,
2220                                 (void *)p,
2221                                 "bnx2fc_thread/%d", cpu);
2222         /* bind thread to the cpu */
2223         if (likely(!IS_ERR(thread))) {
2224                 kthread_bind(thread, cpu);
2225                 p->iothread = thread;
2226                 wake_up_process(thread);
2227         }
2228 }
2229
2230 static void bnx2fc_percpu_thread_destroy(unsigned int cpu)
2231 {
2232         struct bnx2fc_percpu_s *p;
2233         struct task_struct *thread;
2234         struct bnx2fc_work *work, *tmp;
2235
2236         BNX2FC_MISC_DBG("destroying io thread for CPU %d\n", cpu);
2237
2238         /* Prevent any new work from being queued for this CPU */
2239         p = &per_cpu(bnx2fc_percpu, cpu);
2240         spin_lock_bh(&p->fp_work_lock);
2241         thread = p->iothread;
2242         p->iothread = NULL;
2243
2244
2245         /* Free all work in the list */
2246         list_for_each_entry_safe(work, tmp, &p->work_list, list) {
2247                 list_del_init(&work->list);
2248                 bnx2fc_process_cq_compl(work->tgt, work->wqe);
2249                 kfree(work);
2250         }
2251
2252         spin_unlock_bh(&p->fp_work_lock);
2253
2254         if (thread)
2255                 kthread_stop(thread);
2256 }
2257
2258 /**
2259  * bnx2fc_cpu_callback - Handler for CPU hotplug events
2260  *
2261  * @nfb:    The callback data block
2262  * @action: The event triggering the callback
2263  * @hcpu:   The index of the CPU that the event is for
2264  *
2265  * This creates or destroys per-CPU data for fcoe
2266  *
2267  * Returns NOTIFY_OK always.
2268  */
2269 static int bnx2fc_cpu_callback(struct notifier_block *nfb,
2270                              unsigned long action, void *hcpu)
2271 {
2272         unsigned cpu = (unsigned long)hcpu;
2273
2274         switch (action) {
2275         case CPU_ONLINE:
2276         case CPU_ONLINE_FROZEN:
2277                 printk(PFX "CPU %x online: Create Rx thread\n", cpu);
2278                 bnx2fc_percpu_thread_create(cpu);
2279                 break;
2280         case CPU_DEAD:
2281         case CPU_DEAD_FROZEN:
2282                 printk(PFX "CPU %x offline: Remove Rx thread\n", cpu);
2283                 bnx2fc_percpu_thread_destroy(cpu);
2284                 break;
2285         default:
2286                 break;
2287         }
2288         return NOTIFY_OK;
2289 }
2290
2291 /**
2292  * bnx2fc_mod_init - module init entry point
2293  *
2294  * Initialize driver wide global data structures, and register
2295  * with cnic module
2296  **/
2297 static int __init bnx2fc_mod_init(void)
2298 {
2299         struct fcoe_percpu_s *bg;
2300         struct task_struct *l2_thread;
2301         int rc = 0;
2302         unsigned int cpu = 0;
2303         struct bnx2fc_percpu_s *p;
2304
2305         printk(KERN_INFO PFX "%s", version);
2306
2307         /* register as a fcoe transport */
2308         rc = fcoe_transport_attach(&bnx2fc_transport);
2309         if (rc) {
2310                 printk(KERN_ERR "failed to register an fcoe transport, check "
2311                         "if libfcoe is loaded\n");
2312                 goto out;
2313         }
2314
2315         INIT_LIST_HEAD(&adapter_list);
2316         INIT_LIST_HEAD(&if_list);
2317         mutex_init(&bnx2fc_dev_lock);
2318         adapter_count = 0;
2319
2320         /* Attach FC transport template */
2321         rc = bnx2fc_attach_transport();
2322         if (rc)
2323                 goto detach_ft;
2324
2325         bnx2fc_wq = alloc_workqueue("bnx2fc", 0, 0);
2326         if (!bnx2fc_wq) {
2327                 rc = -ENOMEM;
2328                 goto release_bt;
2329         }
2330
2331         bg = &bnx2fc_global;
2332         skb_queue_head_init(&bg->fcoe_rx_list);
2333         l2_thread = kthread_create(bnx2fc_l2_rcv_thread,
2334                                    (void *)bg,
2335                                    "bnx2fc_l2_thread");
2336         if (IS_ERR(l2_thread)) {
2337                 rc = PTR_ERR(l2_thread);
2338                 goto free_wq;
2339         }
2340         wake_up_process(l2_thread);
2341         spin_lock_bh(&bg->fcoe_rx_list.lock);
2342         bg->thread = l2_thread;
2343         spin_unlock_bh(&bg->fcoe_rx_list.lock);
2344
2345         for_each_possible_cpu(cpu) {
2346                 p = &per_cpu(bnx2fc_percpu, cpu);
2347                 INIT_LIST_HEAD(&p->work_list);
2348                 spin_lock_init(&p->fp_work_lock);
2349         }
2350
2351         for_each_online_cpu(cpu) {
2352                 bnx2fc_percpu_thread_create(cpu);
2353         }
2354
2355         /* Initialize per CPU interrupt thread */
2356         register_hotcpu_notifier(&bnx2fc_cpu_notifier);
2357
2358         cnic_register_driver(CNIC_ULP_FCOE, &bnx2fc_cnic_cb);
2359
2360         return 0;
2361
2362 free_wq:
2363         destroy_workqueue(bnx2fc_wq);
2364 release_bt:
2365         bnx2fc_release_transport();
2366 detach_ft:
2367         fcoe_transport_detach(&bnx2fc_transport);
2368 out:
2369         return rc;
2370 }
2371
2372 static void __exit bnx2fc_mod_exit(void)
2373 {
2374         LIST_HEAD(to_be_deleted);
2375         struct bnx2fc_hba *hba, *next;
2376         struct fcoe_percpu_s *bg;
2377         struct task_struct *l2_thread;
2378         struct sk_buff *skb;
2379         unsigned int cpu = 0;
2380
2381         /*
2382          * NOTE: Since cnic calls register_driver routine rtnl_lock,
2383          * it will have higher precedence than bnx2fc_dev_lock.
2384          * unregister_device() cannot be called with bnx2fc_dev_lock
2385          * held.
2386          */
2387         mutex_lock(&bnx2fc_dev_lock);
2388         list_splice(&adapter_list, &to_be_deleted);
2389         INIT_LIST_HEAD(&adapter_list);
2390         adapter_count = 0;
2391         mutex_unlock(&bnx2fc_dev_lock);
2392
2393         /* Unregister with cnic */
2394         list_for_each_entry_safe(hba, next, &to_be_deleted, list) {
2395                 list_del_init(&hba->list);
2396                 printk(KERN_ERR PFX "MOD_EXIT:destroy hba = 0x%p\n",
2397                        hba);
2398                 bnx2fc_ulp_stop(hba);
2399                 /* unregister cnic device */
2400                 if (test_and_clear_bit(BNX2FC_CNIC_REGISTERED,
2401                                        &hba->reg_with_cnic))
2402                         hba->cnic->unregister_device(hba->cnic,
2403                                                          CNIC_ULP_FCOE);
2404                 bnx2fc_hba_destroy(hba);
2405         }
2406         cnic_unregister_driver(CNIC_ULP_FCOE);
2407
2408         /* Destroy global thread */
2409         bg = &bnx2fc_global;
2410         spin_lock_bh(&bg->fcoe_rx_list.lock);
2411         l2_thread = bg->thread;
2412         bg->thread = NULL;
2413         while ((skb = __skb_dequeue(&bg->fcoe_rx_list)) != NULL)
2414                 kfree_skb(skb);
2415
2416         spin_unlock_bh(&bg->fcoe_rx_list.lock);
2417
2418         if (l2_thread)
2419                 kthread_stop(l2_thread);
2420
2421         unregister_hotcpu_notifier(&bnx2fc_cpu_notifier);
2422
2423         /* Destroy per cpu threads */
2424         for_each_online_cpu(cpu) {
2425                 bnx2fc_percpu_thread_destroy(cpu);
2426         }
2427
2428         destroy_workqueue(bnx2fc_wq);
2429         /*
2430          * detach from scsi transport
2431          * must happen after all destroys are done
2432          */
2433         bnx2fc_release_transport();
2434
2435         /* detach from fcoe transport */
2436         fcoe_transport_detach(&bnx2fc_transport);
2437 }
2438
2439 module_init(bnx2fc_mod_init);
2440 module_exit(bnx2fc_mod_exit);
2441
2442 static struct fc_function_template bnx2fc_transport_function = {
2443         .show_host_node_name = 1,
2444         .show_host_port_name = 1,
2445         .show_host_supported_classes = 1,
2446         .show_host_supported_fc4s = 1,
2447         .show_host_active_fc4s = 1,
2448         .show_host_maxframe_size = 1,
2449
2450         .show_host_port_id = 1,
2451         .show_host_supported_speeds = 1,
2452         .get_host_speed = fc_get_host_speed,
2453         .show_host_speed = 1,
2454         .show_host_port_type = 1,
2455         .get_host_port_state = fc_get_host_port_state,
2456         .show_host_port_state = 1,
2457         .show_host_symbolic_name = 1,
2458
2459         .dd_fcrport_size = (sizeof(struct fc_rport_libfc_priv) +
2460                                 sizeof(struct bnx2fc_rport)),
2461         .show_rport_maxframe_size = 1,
2462         .show_rport_supported_classes = 1,
2463
2464         .show_host_fabric_name = 1,
2465         .show_starget_node_name = 1,
2466         .show_starget_port_name = 1,
2467         .show_starget_port_id = 1,
2468         .set_rport_dev_loss_tmo = fc_set_rport_loss_tmo,
2469         .show_rport_dev_loss_tmo = 1,
2470         .get_fc_host_stats = bnx2fc_get_host_stats,
2471
2472         .issue_fc_host_lip = bnx2fc_fcoe_reset,
2473
2474         .terminate_rport_io = fc_rport_terminate_io,
2475
2476         .vport_create = bnx2fc_vport_create,
2477         .vport_delete = bnx2fc_vport_destroy,
2478         .vport_disable = bnx2fc_vport_disable,
2479         .bsg_request = fc_lport_bsg_request,
2480 };
2481
2482 static struct fc_function_template bnx2fc_vport_xport_function = {
2483         .show_host_node_name = 1,
2484         .show_host_port_name = 1,
2485         .show_host_supported_classes = 1,
2486         .show_host_supported_fc4s = 1,
2487         .show_host_active_fc4s = 1,
2488         .show_host_maxframe_size = 1,
2489
2490         .show_host_port_id = 1,
2491         .show_host_supported_speeds = 1,
2492         .get_host_speed = fc_get_host_speed,
2493         .show_host_speed = 1,
2494         .show_host_port_type = 1,
2495         .get_host_port_state = fc_get_host_port_state,
2496         .show_host_port_state = 1,
2497         .show_host_symbolic_name = 1,
2498
2499         .dd_fcrport_size = (sizeof(struct fc_rport_libfc_priv) +
2500                                 sizeof(struct bnx2fc_rport)),
2501         .show_rport_maxframe_size = 1,
2502         .show_rport_supported_classes = 1,
2503
2504         .show_host_fabric_name = 1,
2505         .show_starget_node_name = 1,
2506         .show_starget_port_name = 1,
2507         .show_starget_port_id = 1,
2508         .set_rport_dev_loss_tmo = fc_set_rport_loss_tmo,
2509         .show_rport_dev_loss_tmo = 1,
2510         .get_fc_host_stats = fc_get_host_stats,
2511         .issue_fc_host_lip = bnx2fc_fcoe_reset,
2512         .terminate_rport_io = fc_rport_terminate_io,
2513         .bsg_request = fc_lport_bsg_request,
2514 };
2515
2516 /**
2517  * scsi_host_template structure used while registering with SCSI-ml
2518  */
2519 static struct scsi_host_template bnx2fc_shost_template = {
2520         .module                 = THIS_MODULE,
2521         .name                   = "Broadcom Offload FCoE Initiator",
2522         .queuecommand           = bnx2fc_queuecommand,
2523         .eh_abort_handler       = bnx2fc_eh_abort,        /* abts */
2524         .eh_device_reset_handler = bnx2fc_eh_device_reset, /* lun reset */
2525         .eh_target_reset_handler = bnx2fc_eh_target_reset, /* tgt reset */
2526         .eh_host_reset_handler  = fc_eh_host_reset,
2527         .slave_alloc            = fc_slave_alloc,
2528         .change_queue_depth     = fc_change_queue_depth,
2529         .change_queue_type      = fc_change_queue_type,
2530         .this_id                = -1,
2531         .cmd_per_lun            = 3,
2532         .can_queue              = BNX2FC_CAN_QUEUE,
2533         .use_clustering         = ENABLE_CLUSTERING,
2534         .sg_tablesize           = BNX2FC_MAX_BDS_PER_CMD,
2535         .max_sectors            = 512,
2536 };
2537
2538 static struct libfc_function_template bnx2fc_libfc_fcn_templ = {
2539         .frame_send             = bnx2fc_xmit,
2540         .elsct_send             = bnx2fc_elsct_send,
2541         .fcp_abort_io           = bnx2fc_abort_io,
2542         .fcp_cleanup            = bnx2fc_cleanup,
2543         .get_lesb               = bnx2fc_get_lesb,
2544         .rport_event_callback   = bnx2fc_rport_event_handler,
2545 };
2546
2547 /**
2548  * bnx2fc_cnic_cb - global template of bnx2fc - cnic driver interface
2549  *                      structure carrying callback function pointers
2550  */
2551 static struct cnic_ulp_ops bnx2fc_cnic_cb = {
2552         .owner                  = THIS_MODULE,
2553         .cnic_init              = bnx2fc_ulp_init,
2554         .cnic_exit              = bnx2fc_ulp_exit,
2555         .cnic_start             = bnx2fc_ulp_start,
2556         .cnic_stop              = bnx2fc_ulp_stop,
2557         .indicate_kcqes         = bnx2fc_indicate_kcqe,
2558         .indicate_netevent      = bnx2fc_indicate_netevent,
2559 };