drivers/scsi/bnx2fc/bnx2fc_fcoe.c

   1 /* bnx2fc_fcoe.c: Broadcom NetXtreme II Linux FCoE offload driver.
   2  * This file contains the code that interacts with libfc, libfcoe,
   3  * cnic modules to create FCoE instances, send/receive non-offloaded
   4  * FIP/FCoE packets, listen to link events etc.
   5  *
   6  * Copyright (c) 2008 - 2010 Broadcom Corporation
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation.
  11  *
  12  * Written by: Bhanu Prakash Gollapudi (bprakash@broadcom.com)
  13  */
  14
  15 #include "bnx2fc.h"
  16
  17 static struct list_head adapter_list;
  18 static u32 adapter_count;
  19 static DEFINE_MUTEX(bnx2fc_dev_lock);
  20 DEFINE_PER_CPU(struct bnx2fc_percpu_s, bnx2fc_percpu);
  21
  22 #define DRV_MODULE_NAME         "bnx2fc"
  23 #define DRV_MODULE_VERSION      BNX2FC_VERSION
  24 #define DRV_MODULE_RELDATE      "Mar 17, 2011"
  25
  26
  27 static char version[] __devinitdata =
  28                 "Broadcom NetXtreme II FCoE Driver " DRV_MODULE_NAME \
  29                 " v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n";
  30
  31
  32 MODULE_AUTHOR("Bhanu Prakash Gollapudi <bprakash@broadcom.com>");
  33 MODULE_DESCRIPTION("Broadcom NetXtreme II BCM57710 FCoE Driver");
  34 MODULE_LICENSE("GPL");
  35 MODULE_VERSION(DRV_MODULE_VERSION);
  36
  37 #define BNX2FC_MAX_QUEUE_DEPTH  256
  38 #define BNX2FC_MIN_QUEUE_DEPTH  32
  39 #define FCOE_WORD_TO_BYTE  4
  40
  41 static struct scsi_transport_template   *bnx2fc_transport_template;
  42 static struct scsi_transport_template   *bnx2fc_vport_xport_template;
  43
  44 struct workqueue_struct *bnx2fc_wq;
  45
  46 /* bnx2fc structure needs only one instance of the fcoe_percpu_s structure.
  47  * Here the io threads are per cpu but the l2 thread is just one
  48  */
  49 struct fcoe_percpu_s bnx2fc_global;
  50 DEFINE_SPINLOCK(bnx2fc_global_lock);
  51
  52 static struct cnic_ulp_ops bnx2fc_cnic_cb;
  53 static struct libfc_function_template bnx2fc_libfc_fcn_templ;
  54 static struct scsi_host_template bnx2fc_shost_template;
  55 static struct fc_function_template bnx2fc_transport_function;
  56 static struct fc_function_template bnx2fc_vport_xport_function;
  57 static int bnx2fc_create(struct net_device *netdev, enum fip_state fip_mode);
  58 static int bnx2fc_destroy(struct net_device *net_device);
  59 static int bnx2fc_enable(struct net_device *netdev);
  60 static int bnx2fc_disable(struct net_device *netdev);
  61
  62 static void bnx2fc_recv_frame(struct sk_buff *skb);
  63
  64 static void bnx2fc_start_disc(struct bnx2fc_hba *hba);
  65 static int bnx2fc_shost_config(struct fc_lport *lport, struct device *dev);
  66 static int bnx2fc_net_config(struct fc_lport *lp);
  67 static int bnx2fc_lport_config(struct fc_lport *lport);
  68 static int bnx2fc_em_config(struct fc_lport *lport);
  69 static int bnx2fc_bind_adapter_devices(struct bnx2fc_hba *hba);
  70 static void bnx2fc_unbind_adapter_devices(struct bnx2fc_hba *hba);
  71 static int bnx2fc_bind_pcidev(struct bnx2fc_hba *hba);
  72 static void bnx2fc_unbind_pcidev(struct bnx2fc_hba *hba);
  73 static struct fc_lport *bnx2fc_if_create(struct bnx2fc_hba *hba,
  74                                   struct device *parent, int npiv);
  75 static void bnx2fc_destroy_work(struct work_struct *work);
  76
  77 static struct bnx2fc_hba *bnx2fc_hba_lookup(struct net_device *phys_dev);
  78 static struct bnx2fc_hba *bnx2fc_find_hba_for_cnic(struct cnic_dev *cnic);
  79
  80 static int bnx2fc_fw_init(struct bnx2fc_hba *hba);
  81 static void bnx2fc_fw_destroy(struct bnx2fc_hba *hba);
  82
  83 static void bnx2fc_port_shutdown(struct fc_lport *lport);
  84 static void bnx2fc_stop(struct bnx2fc_hba *hba);
  85 static int __init bnx2fc_mod_init(void);
  86 static void __exit bnx2fc_mod_exit(void);
  87
  88 unsigned int bnx2fc_debug_level;
  89 module_param_named(debug_logging, bnx2fc_debug_level, int, S_IRUGO|S_IWUSR);
  90
  91 static int bnx2fc_cpu_callback(struct notifier_block *nfb,
  92                              unsigned long action, void *hcpu);
  93 /* notification function for CPU hotplug events */
  94 static struct notifier_block bnx2fc_cpu_notifier = {
  95         .notifier_call = bnx2fc_cpu_callback,
  96 };
  97
  98 static void bnx2fc_clean_rx_queue(struct fc_lport *lp)
  99 {
 100         struct fcoe_percpu_s *bg;
 101         struct fcoe_rcv_info *fr;
 102         struct sk_buff_head *list;
 103         struct sk_buff *skb, *next;
 104         struct sk_buff *head;
 105
 106         bg = &bnx2fc_global;
 107         spin_lock_bh(&bg->fcoe_rx_list.lock);
 108         list = &bg->fcoe_rx_list;
 109         head = list->next;
 110         for (skb = head; skb != (struct sk_buff *)list;
 111              skb = next) {
 112                 next = skb->next;
 113                 fr = fcoe_dev_from_skb(skb);
 114                 if (fr->fr_dev == lp) {
 115                         __skb_unlink(skb, list);
 116                         kfree_skb(skb);
 117                 }
 118         }
 119         spin_unlock_bh(&bg->fcoe_rx_list.lock);
 120 }
 121
 122 int bnx2fc_get_paged_crc_eof(struct sk_buff *skb, int tlen)
 123 {
 124         int rc;
 125         spin_lock(&bnx2fc_global_lock);
 126         rc = fcoe_get_paged_crc_eof(skb, tlen, &bnx2fc_global);
 127         spin_unlock(&bnx2fc_global_lock);
 128
 129         return rc;
 130 }
 131
 132 static void bnx2fc_abort_io(struct fc_lport *lport)
 133 {
 134         /*
 135          * This function is no-op for bnx2fc, but we do
 136          * not want to leave it as NULL either, as libfc
 137          * can call the default function which is
 138          * fc_fcp_abort_io.
 139          */
 140 }
 141
 142 static void bnx2fc_cleanup(struct fc_lport *lport)
 143 {
 144         struct fcoe_port *port = lport_priv(lport);
 145         struct bnx2fc_hba *hba = port->priv;
 146         struct bnx2fc_rport *tgt;
 147         int i;
 148
 149         BNX2FC_MISC_DBG("Entered %s\n", __func__);
 150         mutex_lock(&hba->hba_mutex);
 151         spin_lock_bh(&hba->hba_lock);
 152         for (i = 0; i < BNX2FC_NUM_MAX_SESS; i++) {
 153                 tgt = hba->tgt_ofld_list[i];
 154                 if (tgt) {
 155                         /* Cleanup IOs belonging to requested vport */
 156                         if (tgt->port == port) {
 157                                 spin_unlock_bh(&hba->hba_lock);
 158                                 BNX2FC_TGT_DBG(tgt, "flush/cleanup\n");
 159                                 bnx2fc_flush_active_ios(tgt);
 160                                 spin_lock_bh(&hba->hba_lock);
 161                         }
 162                 }
 163         }
 164         spin_unlock_bh(&hba->hba_lock);
 165         mutex_unlock(&hba->hba_mutex);
 166 }
 167
 168 static int bnx2fc_xmit_l2_frame(struct bnx2fc_rport *tgt,
 169                              struct fc_frame *fp)
 170 {
 171         struct fc_rport_priv *rdata = tgt->rdata;
 172         struct fc_frame_header *fh;
 173         int rc = 0;
 174
 175         fh = fc_frame_header_get(fp);
 176         BNX2FC_TGT_DBG(tgt, "Xmit L2 frame rport = 0x%x, oxid = 0x%x, "
 177                         "r_ctl = 0x%x\n", rdata->ids.port_id,
 178                         ntohs(fh->fh_ox_id), fh->fh_r_ctl);
 179         if ((fh->fh_type == FC_TYPE_ELS) &&
 180             (fh->fh_r_ctl == FC_RCTL_ELS_REQ)) {
 181
 182                 switch (fc_frame_payload_op(fp)) {
 183                 case ELS_ADISC:
 184                         rc = bnx2fc_send_adisc(tgt, fp);
 185                         break;
 186                 case ELS_LOGO:
 187                         rc = bnx2fc_send_logo(tgt, fp);
 188                         break;
 189                 case ELS_RLS:
 190                         rc = bnx2fc_send_rls(tgt, fp);
 191                         break;
 192                 default:
 193                         break;
 194                 }
 195         } else if ((fh->fh_type ==  FC_TYPE_BLS) &&
 196             (fh->fh_r_ctl == FC_RCTL_BA_ABTS))
 197                 BNX2FC_TGT_DBG(tgt, "ABTS frame\n");
 198         else {
 199                 BNX2FC_TGT_DBG(tgt, "Send L2 frame type 0x%x "
 200                                 "rctl 0x%x thru non-offload path\n",
 201                                 fh->fh_type, fh->fh_r_ctl);
 202                 return -ENODEV;
 203         }
 204         if (rc)
 205                 return -ENOMEM;
 206         else
 207                 return 0;
 208 }
 209
 210 /**
 211  * bnx2fc_xmit - bnx2fc's FCoE frame transmit function
 212  *
 213  * @lport:      the associated local port
 214  * @fp: the fc_frame to be transmitted
 215  */
 216 static int bnx2fc_xmit(struct fc_lport *lport, struct fc_frame *fp)
 217 {
 218         struct ethhdr           *eh;
 219         struct fcoe_crc_eof     *cp;
 220         struct sk_buff          *skb;
 221         struct fc_frame_header  *fh;
 222         struct bnx2fc_hba       *hba;
 223         struct fcoe_port        *port;
 224         struct fcoe_hdr         *hp;
 225         struct bnx2fc_rport     *tgt;
 226         struct fcoe_dev_stats   *stats;
 227         u8                      sof, eof;
 228         u32                     crc;
 229         unsigned int            hlen, tlen, elen;
 230         int                     wlen, rc = 0;
 231
 232         port = (struct fcoe_port *)lport_priv(lport);
 233         hba = port->priv;
 234
 235         fh = fc_frame_header_get(fp);
 236
 237         skb = fp_skb(fp);
 238         if (!lport->link_up) {
 239                 BNX2FC_HBA_DBG(lport, "bnx2fc_xmit link down\n");
 240                 kfree_skb(skb);
 241                 return 0;
 242         }
 243
 244         if (unlikely(fh->fh_r_ctl == FC_RCTL_ELS_REQ)) {
 245                 if (!hba->ctlr.sel_fcf) {
 246                         BNX2FC_HBA_DBG(lport, "FCF not selected yet!\n");
 247                         kfree_skb(skb);
 248                         return -EINVAL;
 249                 }
 250                 if (fcoe_ctlr_els_send(&hba->ctlr, lport, skb))
 251                         return 0;
 252         }
 253
 254         sof = fr_sof(fp);
 255         eof = fr_eof(fp);
 256
 257         /*
 258          * Snoop the frame header to check if the frame is for
 259          * an offloaded session
 260          */
 261         /*
 262          * tgt_ofld_list access is synchronized using
 263          * both hba mutex and hba lock. Atleast hba mutex or
 264          * hba lock needs to be held for read access.
 265          */
 266
 267         spin_lock_bh(&hba->hba_lock);
 268         tgt = bnx2fc_tgt_lookup(port, ntoh24(fh->fh_d_id));
 269         if (tgt && (test_bit(BNX2FC_FLAG_SESSION_READY, &tgt->flags))) {
 270                 /* This frame is for offloaded session */
 271                 BNX2FC_HBA_DBG(lport, "xmit: Frame is for offloaded session "
 272                                 "port_id = 0x%x\n", ntoh24(fh->fh_d_id));
 273                 spin_unlock_bh(&hba->hba_lock);
 274                 rc = bnx2fc_xmit_l2_frame(tgt, fp);
 275                 if (rc != -ENODEV) {
 276                         kfree_skb(skb);
 277                         return rc;
 278                 }
 279         } else {
 280                 spin_unlock_bh(&hba->hba_lock);
 281         }
 282
 283         elen = sizeof(struct ethhdr);
 284         hlen = sizeof(struct fcoe_hdr);
 285         tlen = sizeof(struct fcoe_crc_eof);
 286         wlen = (skb->len - tlen + sizeof(crc)) / FCOE_WORD_TO_BYTE;
 287
 288         skb->ip_summed = CHECKSUM_NONE;
 289         crc = fcoe_fc_crc(fp);
 290
 291         /* copy port crc and eof to the skb buff */
 292         if (skb_is_nonlinear(skb)) {
 293                 skb_frag_t *frag;
 294                 if (bnx2fc_get_paged_crc_eof(skb, tlen)) {
 295                         kfree_skb(skb);
 296                         return -ENOMEM;
 297                 }
 298                 frag = &skb_shinfo(skb)->frags[skb_shinfo(skb)->nr_frags - 1];
 299                 cp = kmap_atomic(frag->page, KM_SKB_DATA_SOFTIRQ)
 300                                 + frag->page_offset;
 301         } else {
 302                 cp = (struct fcoe_crc_eof *)skb_put(skb, tlen);
 303         }
 304
 305         memset(cp, 0, sizeof(*cp));
 306         cp->fcoe_eof = eof;
 307         cp->fcoe_crc32 = cpu_to_le32(~crc);
 308         if (skb_is_nonlinear(skb)) {
 309                 kunmap_atomic(cp, KM_SKB_DATA_SOFTIRQ);
 310                 cp = NULL;
 311         }
 312
 313         /* adjust skb network/transport offsets to match mac/fcoe/port */
 314         skb_push(skb, elen + hlen);
 315         skb_reset_mac_header(skb);
 316         skb_reset_network_header(skb);
 317         skb->mac_len = elen;
 318         skb->protocol = htons(ETH_P_FCOE);
 319         skb->dev = hba->netdev;
 320
 321         /* fill up mac and fcoe headers */
 322         eh = eth_hdr(skb);
 323         eh->h_proto = htons(ETH_P_FCOE);
 324         if (hba->ctlr.map_dest)
 325                 fc_fcoe_set_mac(eh->h_dest, fh->fh_d_id);
 326         else
 327                 /* insert GW address */
 328                 memcpy(eh->h_dest, hba->ctlr.dest_addr, ETH_ALEN);
 329
 330         if (unlikely(hba->ctlr.flogi_oxid != FC_XID_UNKNOWN))
 331                 memcpy(eh->h_source, hba->ctlr.ctl_src_addr, ETH_ALEN);
 332         else
 333                 memcpy(eh->h_source, port->data_src_addr, ETH_ALEN);
 334
 335         hp = (struct fcoe_hdr *)(eh + 1);
 336         memset(hp, 0, sizeof(*hp));
 337         if (FC_FCOE_VER)
 338                 FC_FCOE_ENCAPS_VER(hp, FC_FCOE_VER);
 339         hp->fcoe_sof = sof;
 340
 341         /* fcoe lso, mss is in max_payload which is non-zero for FCP data */
 342         if (lport->seq_offload && fr_max_payload(fp)) {
 343                 skb_shinfo(skb)->gso_type = SKB_GSO_FCOE;
 344                 skb_shinfo(skb)->gso_size = fr_max_payload(fp);
 345         } else {
 346                 skb_shinfo(skb)->gso_type = 0;
 347                 skb_shinfo(skb)->gso_size = 0;
 348         }
 349
 350         /*update tx stats */
 351         stats = per_cpu_ptr(lport->dev_stats, get_cpu());
 352         stats->TxFrames++;
 353         stats->TxWords += wlen;
 354         put_cpu();
 355
 356         /* send down to lld */
 357         fr_dev(fp) = lport;
 358         if (port->fcoe_pending_queue.qlen)
 359                 fcoe_check_wait_queue(lport, skb);
 360         else if (fcoe_start_io(skb))
 361                 fcoe_check_wait_queue(lport, skb);
 362
 363         return 0;
 364 }
 365
 366 /**
 367  * bnx2fc_rcv - This is bnx2fc's receive function called by NET_RX_SOFTIRQ
 368  *
 369  * @skb:        the receive socket buffer
 370  * @dev:        associated net device
 371  * @ptype:      context
 372  * @olddev:     last device
 373  *
 374  * This function receives the packet and builds FC frame and passes it up
 375  */
 376 static int bnx2fc_rcv(struct sk_buff *skb, struct net_device *dev,
 377                 struct packet_type *ptype, struct net_device *olddev)
 378 {
 379         struct fc_lport *lport;
 380         struct bnx2fc_hba *hba;
 381         struct fc_frame_header *fh;
 382         struct fcoe_rcv_info *fr;
 383         struct fcoe_percpu_s *bg;
 384         unsigned short oxid;
 385
 386         hba = container_of(ptype, struct bnx2fc_hba, fcoe_packet_type);
 387         lport = hba->ctlr.lp;
 388
 389         if (unlikely(lport == NULL)) {
 390                 printk(KERN_ALERT PFX "bnx2fc_rcv: lport is NULL\n");
 391                 goto err;
 392         }
 393
 394         if (unlikely(eth_hdr(skb)->h_proto != htons(ETH_P_FCOE))) {
 395                 printk(KERN_ALERT PFX "bnx2fc_rcv: Wrong FC type frame\n");
 396                 goto err;
 397         }
 398
 399         /*
 400          * Check for minimum frame length, and make sure required FCoE
 401          * and FC headers are pulled into the linear data area.
 402          */
 403         if (unlikely((skb->len < FCOE_MIN_FRAME) ||
 404             !pskb_may_pull(skb, FCOE_HEADER_LEN)))
 405                 goto err;
 406
 407         skb_set_transport_header(skb, sizeof(struct fcoe_hdr));
 408         fh = (struct fc_frame_header *) skb_transport_header(skb);
 409
 410         oxid = ntohs(fh->fh_ox_id);
 411
 412         fr = fcoe_dev_from_skb(skb);
 413         fr->fr_dev = lport;
 414         fr->ptype = ptype;
 415
 416         bg = &bnx2fc_global;
 417         spin_lock_bh(&bg->fcoe_rx_list.lock);
 418
 419         __skb_queue_tail(&bg->fcoe_rx_list, skb);
 420         if (bg->fcoe_rx_list.qlen == 1)
 421                 wake_up_process(bg->thread);
 422
 423         spin_unlock_bh(&bg->fcoe_rx_list.lock);
 424
 425         return 0;
 426 err:
 427         kfree_skb(skb);
 428         return -1;
 429 }
 430
 431 static int bnx2fc_l2_rcv_thread(void *arg)
 432 {
 433         struct fcoe_percpu_s *bg = arg;
 434         struct sk_buff *skb;
 435
 436         set_user_nice(current, -20);
 437         set_current_state(TASK_INTERRUPTIBLE);
 438         while (!kthread_should_stop()) {
 439                 schedule();
 440                 spin_lock_bh(&bg->fcoe_rx_list.lock);
 441                 while ((skb = __skb_dequeue(&bg->fcoe_rx_list)) != NULL) {
 442                         spin_unlock_bh(&bg->fcoe_rx_list.lock);
 443                         bnx2fc_recv_frame(skb);
 444                         spin_lock_bh(&bg->fcoe_rx_list.lock);
 445                 }
 446                 __set_current_state(TASK_INTERRUPTIBLE);
 447                 spin_unlock_bh(&bg->fcoe_rx_list.lock);
 448         }
 449         __set_current_state(TASK_RUNNING);
 450         return 0;
 451 }
 452
 453
 454 static void bnx2fc_recv_frame(struct sk_buff *skb)
 455 {
 456         u32 fr_len;
 457         struct fc_lport *lport;
 458         struct fcoe_rcv_info *fr;
 459         struct fcoe_dev_stats *stats;
 460         struct fc_frame_header *fh;
 461         struct fcoe_crc_eof crc_eof;
 462         struct fc_frame *fp;
 463         struct fc_lport *vn_port;
 464         struct fcoe_port *port;
 465         u8 *mac = NULL;
 466         u8 *dest_mac = NULL;
 467         struct fcoe_hdr *hp;
 468
 469         fr = fcoe_dev_from_skb(skb);
 470         lport = fr->fr_dev;
 471         if (unlikely(lport == NULL)) {
 472                 printk(KERN_ALERT PFX "Invalid lport struct\n");
 473                 kfree_skb(skb);
 474                 return;
 475         }
 476
 477         if (skb_is_nonlinear(skb))
 478                 skb_linearize(skb);
 479         mac = eth_hdr(skb)->h_source;
 480         dest_mac = eth_hdr(skb)->h_dest;
 481
 482         /* Pull the header */
 483         hp = (struct fcoe_hdr *) skb_network_header(skb);
 484         fh = (struct fc_frame_header *) skb_transport_header(skb);
 485         skb_pull(skb, sizeof(struct fcoe_hdr));
 486         fr_len = skb->len - sizeof(struct fcoe_crc_eof);
 487
 488         stats = per_cpu_ptr(lport->dev_stats, get_cpu());
 489         stats->RxFrames++;
 490         stats->RxWords += fr_len / FCOE_WORD_TO_BYTE;
 491
 492         fp = (struct fc_frame *)skb;
 493         fc_frame_init(fp);
 494         fr_dev(fp) = lport;
 495         fr_sof(fp) = hp->fcoe_sof;
 496         if (skb_copy_bits(skb, fr_len, &crc_eof, sizeof(crc_eof))) {
 497                 put_cpu();
 498                 kfree_skb(skb);
 499                 return;
 500         }
 501         fr_eof(fp) = crc_eof.fcoe_eof;
 502         fr_crc(fp) = crc_eof.fcoe_crc32;
 503         if (pskb_trim(skb, fr_len)) {
 504                 put_cpu();
 505                 kfree_skb(skb);
 506                 return;
 507         }
 508
 509         fh = fc_frame_header_get(fp);
 510
 511         vn_port = fc_vport_id_lookup(lport, ntoh24(fh->fh_d_id));
 512         if (vn_port) {
 513                 port = lport_priv(vn_port);
 514                 if (compare_ether_addr(port->data_src_addr, dest_mac)
 515                     != 0) {
 516                         BNX2FC_HBA_DBG(lport, "fpma mismatch\n");
 517                         put_cpu();
 518                         kfree_skb(skb);
 519                         return;
 520                 }
 521         }
 522         if (fh->fh_r_ctl == FC_RCTL_DD_SOL_DATA &&
 523             fh->fh_type == FC_TYPE_FCP) {
 524                 /* Drop FCP data. We dont this in L2 path */
 525                 put_cpu();
 526                 kfree_skb(skb);
 527                 return;
 528         }
 529         if (fh->fh_r_ctl == FC_RCTL_ELS_REQ &&
 530             fh->fh_type == FC_TYPE_ELS) {
 531                 switch (fc_frame_payload_op(fp)) {
 532                 case ELS_LOGO:
 533                         if (ntoh24(fh->fh_s_id) == FC_FID_FLOGI) {
 534                                 /* drop non-FIP LOGO */
 535                                 put_cpu();
 536                                 kfree_skb(skb);
 537                                 return;
 538                         }
 539                         break;
 540                 }
 541         }
 542         if (le32_to_cpu(fr_crc(fp)) !=
 543                         ~crc32(~0, skb->data, fr_len)) {
 544                 if (stats->InvalidCRCCount < 5)
 545                         printk(KERN_WARNING PFX "dropping frame with "
 546                                "CRC error\n");
 547                 stats->InvalidCRCCount++;
 548                 put_cpu();
 549                 kfree_skb(skb);
 550                 return;
 551         }
 552         put_cpu();
 553         fc_exch_recv(lport, fp);
 554 }
 555
 556 /**
 557  * bnx2fc_percpu_io_thread - thread per cpu for ios
 558  *
 559  * @arg:        ptr to bnx2fc_percpu_info structure
 560  */
 561 int bnx2fc_percpu_io_thread(void *arg)
 562 {
 563         struct bnx2fc_percpu_s *p = arg;
 564         struct bnx2fc_work *work, *tmp;
 565         LIST_HEAD(work_list);
 566
 567         set_user_nice(current, -20);
 568         set_current_state(TASK_INTERRUPTIBLE);
 569         while (!kthread_should_stop()) {
 570                 schedule();
 571                 spin_lock_bh(&p->fp_work_lock);
 572                 while (!list_empty(&p->work_list)) {
 573                         list_splice_init(&p->work_list, &work_list);
 574                         spin_unlock_bh(&p->fp_work_lock);
 575
 576                         list_for_each_entry_safe(work, tmp, &work_list, list) {
 577                                 list_del_init(&work->list);
 578                                 bnx2fc_process_cq_compl(work->tgt, work->wqe);
 579                                 kfree(work);
 580                         }
 581
 582                         spin_lock_bh(&p->fp_work_lock);
 583                 }
 584                 __set_current_state(TASK_INTERRUPTIBLE);
 585                 spin_unlock_bh(&p->fp_work_lock);
 586         }
 587         __set_current_state(TASK_RUNNING);
 588
 589         return 0;
 590 }
 591
 592 static struct fc_host_statistics *bnx2fc_get_host_stats(struct Scsi_Host *shost)
 593 {
 594         struct fc_host_statistics *bnx2fc_stats;
 595         struct fc_lport *lport = shost_priv(shost);
 596         struct fcoe_port *port = lport_priv(lport);
 597         struct bnx2fc_hba *hba = port->priv;
 598         struct fcoe_statistics_params *fw_stats;
 599         int rc = 0;
 600
 601         fw_stats = (struct fcoe_statistics_params *)hba->stats_buffer;
 602         if (!fw_stats)
 603                 return NULL;
 604
 605         bnx2fc_stats = fc_get_host_stats(shost);
 606
 607         init_completion(&hba->stat_req_done);
 608         if (bnx2fc_send_stat_req(hba))
 609                 return bnx2fc_stats;
 610         rc = wait_for_completion_timeout(&hba->stat_req_done, (2 * HZ));
 611         if (!rc) {
 612                 BNX2FC_HBA_DBG(lport, "FW stat req timed out\n");
 613                 return bnx2fc_stats;
 614         }
 615         bnx2fc_stats->invalid_crc_count += fw_stats->rx_stat1.fc_crc_cnt;
 616         bnx2fc_stats->tx_frames += fw_stats->tx_stat.fcoe_tx_pkt_cnt;
 617         bnx2fc_stats->tx_words += (fw_stats->tx_stat.fcoe_tx_byte_cnt) / 4;
 618         bnx2fc_stats->rx_frames += fw_stats->rx_stat0.fcoe_rx_pkt_cnt;
 619         bnx2fc_stats->rx_words += (fw_stats->rx_stat0.fcoe_rx_byte_cnt) / 4;
 620
 621         bnx2fc_stats->dumped_frames = 0;
 622         bnx2fc_stats->lip_count = 0;
 623         bnx2fc_stats->nos_count = 0;
 624         bnx2fc_stats->loss_of_sync_count = 0;
 625         bnx2fc_stats->loss_of_signal_count = 0;
 626         bnx2fc_stats->prim_seq_protocol_err_count = 0;
 627
 628         return bnx2fc_stats;
 629 }
 630
 631 static int bnx2fc_shost_config(struct fc_lport *lport, struct device *dev)
 632 {
 633         struct fcoe_port *port = lport_priv(lport);
 634         struct bnx2fc_hba *hba = port->priv;
 635         struct Scsi_Host *shost = lport->host;
 636         int rc = 0;
 637
 638         shost->max_cmd_len = BNX2FC_MAX_CMD_LEN;
 639         shost->max_lun = BNX2FC_MAX_LUN;
 640         shost->max_id = BNX2FC_MAX_FCP_TGT;
 641         shost->max_channel = 0;
 642         if (lport->vport)
 643                 shost->transportt = bnx2fc_vport_xport_template;
 644         else
 645                 shost->transportt = bnx2fc_transport_template;
 646
 647         /* Add the new host to SCSI-ml */
 648         rc = scsi_add_host(lport->host, dev);
 649         if (rc) {
 650                 printk(KERN_ERR PFX "Error on scsi_add_host\n");
 651                 return rc;
 652         }
 653         if (!lport->vport)
 654                 fc_host_max_npiv_vports(lport->host) = USHRT_MAX;
 655         sprintf(fc_host_symbolic_name(lport->host), "%s v%s over %s",
 656                 BNX2FC_NAME, BNX2FC_VERSION,
 657                 hba->netdev->name);
 658
 659         return 0;
 660 }
 661
 662 static void bnx2fc_link_speed_update(struct fc_lport *lport)
 663 {
 664         struct fcoe_port *port = lport_priv(lport);
 665         struct bnx2fc_hba *hba = port->priv;
 666         struct net_device *netdev = hba->netdev;
 667         struct ethtool_cmd ecmd;
 668
 669         if (!dev_ethtool_get_settings(netdev, &ecmd)) {
 670                 lport->link_supported_speeds &=
 671                         ~(FC_PORTSPEED_1GBIT | FC_PORTSPEED_10GBIT);
 672                 if (ecmd.supported & (SUPPORTED_1000baseT_Half |
 673                                       SUPPORTED_1000baseT_Full))
 674                         lport->link_supported_speeds |= FC_PORTSPEED_1GBIT;
 675                 if (ecmd.supported & SUPPORTED_10000baseT_Full)
 676                         lport->link_supported_speeds |= FC_PORTSPEED_10GBIT;
 677
 678                 switch (ethtool_cmd_speed(&ecmd)) {
 679                 case SPEED_1000:
 680                         lport->link_speed = FC_PORTSPEED_1GBIT;
 681                         break;
 682                 case SPEED_2500:
 683                         lport->link_speed = FC_PORTSPEED_2GBIT;
 684                         break;
 685                 case SPEED_10000:
 686                         lport->link_speed = FC_PORTSPEED_10GBIT;
 687                         break;
 688                 }
 689         }
 690 }
 691 static int bnx2fc_link_ok(struct fc_lport *lport)
 692 {
 693         struct fcoe_port *port = lport_priv(lport);
 694         struct bnx2fc_hba *hba = port->priv;
 695         struct net_device *dev = hba->phys_dev;
 696         int rc = 0;
 697
 698         if ((dev->flags & IFF_UP) && netif_carrier_ok(dev))
 699                 clear_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
 700         else {
 701                 set_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
 702                 rc = -1;
 703         }
 704         return rc;
 705 }
 706
 707 /**
 708  * bnx2fc_get_link_state - get network link state
 709  *
 710  * @hba:        adapter instance pointer
 711  *
 712  * updates adapter structure flag based on netdev state
 713  */
 714 void bnx2fc_get_link_state(struct bnx2fc_hba *hba)
 715 {
 716         if (test_bit(__LINK_STATE_NOCARRIER, &hba->netdev->state))
 717                 set_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
 718         else
 719                 clear_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
 720 }
 721
 722 static int bnx2fc_net_config(struct fc_lport *lport)
 723 {
 724         struct bnx2fc_hba *hba;
 725         struct fcoe_port *port;
 726         u64 wwnn, wwpn;
 727
 728         port = lport_priv(lport);
 729         hba = port->priv;
 730
 731         /* require support for get_pauseparam ethtool op. */
 732         if (!hba->phys_dev->ethtool_ops ||
 733             !hba->phys_dev->ethtool_ops->get_pauseparam)
 734                 return -EOPNOTSUPP;
 735
 736         if (fc_set_mfs(lport, BNX2FC_MFS))
 737                 return -EINVAL;
 738
 739         skb_queue_head_init(&port->fcoe_pending_queue);
 740         port->fcoe_pending_queue_active = 0;
 741         setup_timer(&port->timer, fcoe_queue_timer, (unsigned long) lport);
 742
 743         bnx2fc_link_speed_update(lport);
 744
 745         if (!lport->vport) {
 746                 wwnn = fcoe_wwn_from_mac(hba->ctlr.ctl_src_addr, 1, 0);
 747                 BNX2FC_HBA_DBG(lport, "WWNN = 0x%llx\n", wwnn);
 748                 fc_set_wwnn(lport, wwnn);
 749
 750                 wwpn = fcoe_wwn_from_mac(hba->ctlr.ctl_src_addr, 2, 0);
 751                 BNX2FC_HBA_DBG(lport, "WWPN = 0x%llx\n", wwpn);
 752                 fc_set_wwpn(lport, wwpn);
 753         }
 754
 755         return 0;
 756 }
 757
 758 static void bnx2fc_destroy_timer(unsigned long data)
 759 {
 760         struct bnx2fc_hba *hba = (struct bnx2fc_hba *)data;
 761
 762         BNX2FC_HBA_DBG(hba->ctlr.lp, "ERROR:bnx2fc_destroy_timer - "
 763                    "Destroy compl not received!!\n");
 764         hba->flags |= BNX2FC_FLAG_DESTROY_CMPL;
 765         wake_up_interruptible(&hba->destroy_wait);
 766 }
 767
 768 /**
 769  * bnx2fc_indicate_netevent - Generic netdev event handler
 770  *
 771  * @context:    adapter structure pointer
 772  * @event:      event type
 773  *
 774  * Handles NETDEV_UP, NETDEV_DOWN, NETDEV_GOING_DOWN,NETDEV_CHANGE and
 775  * NETDEV_CHANGE_MTU events
 776  */
 777 static void bnx2fc_indicate_netevent(void *context, unsigned long event)
 778 {
 779         struct bnx2fc_hba *hba = (struct bnx2fc_hba *)context;
 780         struct fc_lport *lport = hba->ctlr.lp;
 781         struct fc_lport *vport;
 782         u32 link_possible = 1;
 783
 784         if (!test_bit(BNX2FC_CREATE_DONE, &hba->init_done)) {
 785                 BNX2FC_MISC_DBG("driver not ready. event=%s %ld\n",
 786                            hba->netdev->name, event);
 787                 return;
 788         }
 789
 790         /*
 791          * ASSUMPTION:
 792          * indicate_netevent cannot be called from cnic unless bnx2fc
 793          * does register_device
 794          */
 795         BUG_ON(!lport);
 796
 797         BNX2FC_HBA_DBG(lport, "enter netevent handler - event=%s %ld\n",
 798                                 hba->netdev->name, event);
 799
 800         switch (event) {
 801         case NETDEV_UP:
 802                 BNX2FC_HBA_DBG(lport, "Port up, adapter_state = %ld\n",
 803                         hba->adapter_state);
 804                 if (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state))
 805                         printk(KERN_ERR "indicate_netevent: "\
 806                                         "adapter is not UP!!\n");
 807                 break;
 808
 809         case NETDEV_DOWN:
 810                 BNX2FC_HBA_DBG(lport, "Port down\n");
 811                 clear_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state);
 812                 clear_bit(ADAPTER_STATE_UP, &hba->adapter_state);
 813                 link_possible = 0;
 814                 break;
 815
 816         case NETDEV_GOING_DOWN:
 817                 BNX2FC_HBA_DBG(lport, "Port going down\n");
 818                 set_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state);
 819                 link_possible = 0;
 820                 break;
 821
 822         case NETDEV_CHANGE:
 823                 BNX2FC_HBA_DBG(lport, "NETDEV_CHANGE\n");
 824                 break;
 825
 826         default:
 827                 printk(KERN_ERR PFX "Unkonwn netevent %ld", event);
 828                 return;
 829         }
 830
 831         bnx2fc_link_speed_update(lport);
 832
 833         if (link_possible && !bnx2fc_link_ok(lport)) {
 834                 printk(KERN_ERR "indicate_netevent: call ctlr_link_up\n");
 835                 fcoe_ctlr_link_up(&hba->ctlr);
 836         } else {
 837                 printk(KERN_ERR "indicate_netevent: call ctlr_link_down\n");
 838                 if (fcoe_ctlr_link_down(&hba->ctlr)) {
 839                         clear_bit(ADAPTER_STATE_READY, &hba->adapter_state);
 840                         mutex_lock(&lport->lp_mutex);
 841                         list_for_each_entry(vport, &lport->vports, list)
 842                                 fc_host_port_type(vport->host) =
 843                                                         FC_PORTTYPE_UNKNOWN;
 844                         mutex_unlock(&lport->lp_mutex);
 845                         fc_host_port_type(lport->host) = FC_PORTTYPE_UNKNOWN;
 846                         per_cpu_ptr(lport->dev_stats,
 847                                     get_cpu())->LinkFailureCount++;
 848                         put_cpu();
 849                         fcoe_clean_pending_queue(lport);
 850
 851                         init_waitqueue_head(&hba->shutdown_wait);
 852                         BNX2FC_HBA_DBG(lport, "indicate_netevent "
 853                                              "num_ofld_sess = %d\n",
 854                                    hba->num_ofld_sess);
 855                         hba->wait_for_link_down = 1;
 856                         BNX2FC_HBA_DBG(lport, "waiting for uploads to "
 857                                              "compl proc = %s\n",
 858                                    current->comm);
 859                         wait_event_interruptible(hba->shutdown_wait,
 860                                                  (hba->num_ofld_sess == 0));
 861                         BNX2FC_HBA_DBG(lport, "wakeup - num_ofld_sess = %d\n",
 862                                 hba->num_ofld_sess);
 863                         hba->wait_for_link_down = 0;
 864
 865                         if (signal_pending(current))
 866                                 flush_signals(current);
 867                 }
 868         }
 869 }
 870
 871 static int bnx2fc_libfc_config(struct fc_lport *lport)
 872 {
 873
 874         /* Set the function pointers set by bnx2fc driver */
 875         memcpy(&lport->tt, &bnx2fc_libfc_fcn_templ,
 876                 sizeof(struct libfc_function_template));
 877         fc_elsct_init(lport);
 878         fc_exch_init(lport);
 879         fc_rport_init(lport);
 880         fc_disc_init(lport);
 881         return 0;
 882 }
 883
 884 static int bnx2fc_em_config(struct fc_lport *lport)
 885 {
 886         struct fcoe_port *port = lport_priv(lport);
 887         struct bnx2fc_hba *hba = port->priv;
 888
 889         if (!fc_exch_mgr_alloc(lport, FC_CLASS_3, FCOE_MIN_XID,
 890                                 FCOE_MAX_XID, NULL)) {
 891                 printk(KERN_ERR PFX "em_config:fc_exch_mgr_alloc failed\n");
 892                 return -ENOMEM;
 893         }
 894
 895         hba->cmd_mgr = bnx2fc_cmd_mgr_alloc(hba, BNX2FC_MIN_XID,
 896                                             BNX2FC_MAX_XID);
 897
 898         if (!hba->cmd_mgr) {
 899                 printk(KERN_ERR PFX "em_config:bnx2fc_cmd_mgr_alloc failed\n");
 900                 fc_exch_mgr_free(lport);
 901                 return -ENOMEM;
 902         }
 903         return 0;
 904 }
 905
 906 static int bnx2fc_lport_config(struct fc_lport *lport)
 907 {
 908         lport->link_up = 0;
 909         lport->qfull = 0;
 910         lport->max_retry_count = 3;
 911         lport->max_rport_retry_count = 3;
 912         lport->e_d_tov = 2 * 1000;
 913         lport->r_a_tov = 10 * 1000;
 914
 915         /* REVISIT: enable when supporting tape devices
 916         lport->service_params = (FCP_SPPF_INIT_FCN | FCP_SPPF_RD_XRDY_DIS |
 917                                 FCP_SPPF_RETRY | FCP_SPPF_CONF_COMPL);
 918         */
 919         lport->service_params = (FCP_SPPF_INIT_FCN | FCP_SPPF_RD_XRDY_DIS);
 920         lport->does_npiv = 1;
 921
 922         memset(&lport->rnid_gen, 0, sizeof(struct fc_els_rnid_gen));
 923         lport->rnid_gen.rnid_atype = BNX2FC_RNID_HBA;
 924
 925         /* alloc stats structure */
 926         if (fc_lport_init_stats(lport))
 927                 return -ENOMEM;
 928
 929         /* Finish fc_lport configuration */
 930         fc_lport_config(lport);
 931
 932         return 0;
 933 }
 934
 935 /**
 936  * bnx2fc_fip_recv - handle a received FIP frame.
 937  *
 938  * @skb: the received skb
 939  * @dev: associated &net_device
 940  * @ptype: the &packet_type structure which was used to register this handler.
 941  * @orig_dev: original receive &net_device, in case @ dev is a bond.
 942  *
 943  * Returns: 0 for success
 944  */
 945 static int bnx2fc_fip_recv(struct sk_buff *skb, struct net_device *dev,
 946                            struct packet_type *ptype,
 947                            struct net_device *orig_dev)
 948 {
 949         struct bnx2fc_hba *hba;
 950         hba = container_of(ptype, struct bnx2fc_hba, fip_packet_type);
 951         fcoe_ctlr_recv(&hba->ctlr, skb);
 952         return 0;
 953 }
 954
 955 /**
 956  * bnx2fc_update_src_mac - Update Ethernet MAC filters.
 957  *
 958  * @fip: FCoE controller.
 959  * @old: Unicast MAC address to delete if the MAC is non-zero.
 960  * @new: Unicast MAC address to add.
 961  *
 962  * Remove any previously-set unicast MAC filter.
 963  * Add secondary FCoE MAC address filter for our OUI.
 964  */
 965 static void bnx2fc_update_src_mac(struct fc_lport *lport, u8 *addr)
 966 {
 967         struct fcoe_port *port = lport_priv(lport);
 968
 969         memcpy(port->data_src_addr, addr, ETH_ALEN);
 970 }
 971
 972 /**
 973  * bnx2fc_get_src_mac - return the ethernet source address for an lport
 974  *
 975  * @lport: libfc port
 976  */
 977 static u8 *bnx2fc_get_src_mac(struct fc_lport *lport)
 978 {
 979         struct fcoe_port *port;
 980
 981         port = (struct fcoe_port *)lport_priv(lport);
 982         return port->data_src_addr;
 983 }
 984
 985 /**
 986  * bnx2fc_fip_send - send an Ethernet-encapsulated FIP frame.
 987  *
 988  * @fip: FCoE controller.
 989  * @skb: FIP Packet.
 990  */
 991 static void bnx2fc_fip_send(struct fcoe_ctlr *fip, struct sk_buff *skb)
 992 {
 993         skb->dev = bnx2fc_from_ctlr(fip)->netdev;
 994         dev_queue_xmit(skb);
 995 }
 996
 997 static int bnx2fc_vport_create(struct fc_vport *vport, bool disabled)
 998 {
 999         struct Scsi_Host *shost = vport_to_shost(vport);
1000         struct fc_lport *n_port = shost_priv(shost);
1001         struct fcoe_port *port = lport_priv(n_port);
1002         struct bnx2fc_hba *hba = port->priv;
1003         struct net_device *netdev = hba->netdev;
1004         struct fc_lport *vn_port;
1005
1006         if (!test_bit(BNX2FC_FW_INIT_DONE, &hba->init_done)) {
1007                 printk(KERN_ERR PFX "vn ports cannot be created on"
1008                         "this hba\n");
1009                 return -EIO;
1010         }
1011         mutex_lock(&bnx2fc_dev_lock);
1012         vn_port = bnx2fc_if_create(hba, &vport->dev, 1);
1013         mutex_unlock(&bnx2fc_dev_lock);
1014
1015         if (IS_ERR(vn_port)) {
1016                 printk(KERN_ERR PFX "bnx2fc_vport_create (%s) failed\n",
1017                         netdev->name);
1018                 return -EIO;
1019         }
1020
1021         if (disabled) {
1022                 fc_vport_set_state(vport, FC_VPORT_DISABLED);
1023         } else {
1024                 vn_port->boot_time = jiffies;
1025                 fc_lport_init(vn_port);
1026                 fc_fabric_login(vn_port);
1027                 fc_vport_setlink(vn_port);
1028         }
1029         return 0;
1030 }
1031
1032 static int bnx2fc_vport_destroy(struct fc_vport *vport)
1033 {
1034         struct Scsi_Host *shost = vport_to_shost(vport);
1035         struct fc_lport *n_port = shost_priv(shost);
1036         struct fc_lport *vn_port = vport->dd_data;
1037         struct fcoe_port *port = lport_priv(vn_port);
1038
1039         mutex_lock(&n_port->lp_mutex);
1040         list_del(&vn_port->list);
1041         mutex_unlock(&n_port->lp_mutex);
1042         queue_work(bnx2fc_wq, &port->destroy_work);
1043         return 0;
1044 }
1045
1046 static int bnx2fc_vport_disable(struct fc_vport *vport, bool disable)
1047 {
1048         struct fc_lport *lport = vport->dd_data;
1049
1050         if (disable) {
1051                 fc_vport_set_state(vport, FC_VPORT_DISABLED);
1052                 fc_fabric_logoff(lport);
1053         } else {
1054                 lport->boot_time = jiffies;
1055                 fc_fabric_login(lport);
1056                 fc_vport_setlink(lport);
1057         }
1058         return 0;
1059 }
1060
1061
1062 static int bnx2fc_netdev_setup(struct bnx2fc_hba *hba)
1063 {
1064         struct net_device *netdev = hba->netdev;
1065         struct net_device *physdev = hba->phys_dev;
1066         struct netdev_hw_addr *ha;
1067         int sel_san_mac = 0;
1068
1069         /* setup Source MAC Address */
1070         rcu_read_lock();
1071         for_each_dev_addr(physdev, ha) {
1072                 BNX2FC_MISC_DBG("net_config: ha->type = %d, fip_mac = ",
1073                                 ha->type);
1074                 printk(KERN_INFO "%2x:%2x:%2x:%2x:%2x:%2x\n", ha->addr[0],
1075                                 ha->addr[1], ha->addr[2], ha->addr[3],
1076                                 ha->addr[4], ha->addr[5]);
1077
1078                 if ((ha->type == NETDEV_HW_ADDR_T_SAN) &&
1079                     (is_valid_ether_addr(ha->addr))) {
1080                         memcpy(hba->ctlr.ctl_src_addr, ha->addr, ETH_ALEN);
1081                         sel_san_mac = 1;
1082                         BNX2FC_MISC_DBG("Found SAN MAC\n");
1083                 }
1084         }
1085         rcu_read_unlock();
1086
1087         if (!sel_san_mac)
1088                 return -ENODEV;
1089
1090         hba->fip_packet_type.func = bnx2fc_fip_recv;
1091         hba->fip_packet_type.type = htons(ETH_P_FIP);
1092         hba->fip_packet_type.dev = netdev;
1093         dev_add_pack(&hba->fip_packet_type);
1094
1095         hba->fcoe_packet_type.func = bnx2fc_rcv;
1096         hba->fcoe_packet_type.type = __constant_htons(ETH_P_FCOE);
1097         hba->fcoe_packet_type.dev = netdev;
1098         dev_add_pack(&hba->fcoe_packet_type);
1099
1100         return 0;
1101 }
1102
1103 static int bnx2fc_attach_transport(void)
1104 {
1105         bnx2fc_transport_template =
1106                 fc_attach_transport(&bnx2fc_transport_function);
1107
1108         if (bnx2fc_transport_template == NULL) {
1109                 printk(KERN_ERR PFX "Failed to attach FC transport\n");
1110                 return -ENODEV;
1111         }
1112
1113         bnx2fc_vport_xport_template =
1114                 fc_attach_transport(&bnx2fc_vport_xport_function);
1115         if (bnx2fc_vport_xport_template == NULL) {
1116                 printk(KERN_ERR PFX
1117                        "Failed to attach FC transport for vport\n");
1118                 fc_release_transport(bnx2fc_transport_template);
1119                 bnx2fc_transport_template = NULL;
1120                 return -ENODEV;
1121         }
1122         return 0;
1123 }
1124 static void bnx2fc_release_transport(void)
1125 {
1126         fc_release_transport(bnx2fc_transport_template);
1127         fc_release_transport(bnx2fc_vport_xport_template);
1128         bnx2fc_transport_template = NULL;
1129         bnx2fc_vport_xport_template = NULL;
1130 }
1131
1132 static void bnx2fc_interface_release(struct kref *kref)
1133 {
1134         struct bnx2fc_hba *hba;
1135         struct net_device *netdev;
1136         struct net_device *phys_dev;
1137
1138         hba = container_of(kref, struct bnx2fc_hba, kref);
1139         BNX2FC_MISC_DBG("Interface is being released\n");
1140
1141         netdev = hba->netdev;
1142         phys_dev = hba->phys_dev;
1143
1144         /* tear-down FIP controller */
1145         if (test_and_clear_bit(BNX2FC_CTLR_INIT_DONE, &hba->init_done))
1146                 fcoe_ctlr_destroy(&hba->ctlr);
1147
1148         /* Free the command manager */
1149         if (hba->cmd_mgr) {
1150                 bnx2fc_cmd_mgr_free(hba->cmd_mgr);
1151                 hba->cmd_mgr = NULL;
1152         }
1153         dev_put(netdev);
1154         module_put(THIS_MODULE);
1155 }
1156
1157 static inline void bnx2fc_interface_get(struct bnx2fc_hba *hba)
1158 {
1159         kref_get(&hba->kref);
1160 }
1161
1162 static inline void bnx2fc_interface_put(struct bnx2fc_hba *hba)
1163 {
1164         kref_put(&hba->kref, bnx2fc_interface_release);
1165 }
1166 static void bnx2fc_interface_destroy(struct bnx2fc_hba *hba)
1167 {
1168         bnx2fc_unbind_pcidev(hba);
1169         kfree(hba);
1170 }
1171
1172 /**
1173  * bnx2fc_interface_create - create a new fcoe instance
1174  *
1175  * @cnic:       pointer to cnic device
1176  *
1177  * Creates a new FCoE instance on the given device which include allocating
1178  *      hba structure, scsi_host and lport structures.
1179  */
1180 static struct bnx2fc_hba *bnx2fc_interface_create(struct cnic_dev *cnic)
1181 {
1182         struct bnx2fc_hba *hba;
1183         int rc;
1184
1185         hba = kzalloc(sizeof(*hba), GFP_KERNEL);
1186         if (!hba) {
1187                 printk(KERN_ERR PFX "Unable to allocate hba structure\n");
1188                 return NULL;
1189         }
1190         spin_lock_init(&hba->hba_lock);
1191         mutex_init(&hba->hba_mutex);
1192
1193         hba->cnic = cnic;
1194         rc = bnx2fc_bind_pcidev(hba);
1195         if (rc)
1196                 goto bind_err;
1197         hba->phys_dev = cnic->netdev;
1198         /* will get overwritten after we do vlan discovery */
1199         hba->netdev = hba->phys_dev;
1200
1201         init_waitqueue_head(&hba->shutdown_wait);
1202         init_waitqueue_head(&hba->destroy_wait);
1203
1204         return hba;
1205 bind_err:
1206         printk(KERN_ERR PFX "create_interface: bind error\n");
1207         kfree(hba);
1208         return NULL;
1209 }
1210
1211 static int bnx2fc_interface_setup(struct bnx2fc_hba *hba,
1212                                   enum fip_state fip_mode)
1213 {
1214         int rc = 0;
1215         struct net_device *netdev = hba->netdev;
1216         struct fcoe_ctlr *fip = &hba->ctlr;
1217
1218         dev_hold(netdev);
1219         kref_init(&hba->kref);
1220
1221         hba->flags = 0;
1222
1223         /* Initialize FIP */
1224         memset(fip, 0, sizeof(*fip));
1225         fcoe_ctlr_init(fip, fip_mode);
1226         hba->ctlr.send = bnx2fc_fip_send;
1227         hba->ctlr.update_mac = bnx2fc_update_src_mac;
1228         hba->ctlr.get_src_addr = bnx2fc_get_src_mac;
1229         set_bit(BNX2FC_CTLR_INIT_DONE, &hba->init_done);
1230
1231         INIT_LIST_HEAD(&hba->vports);
1232         rc = bnx2fc_netdev_setup(hba);
1233         if (rc)
1234                 goto setup_err;
1235
1236         hba->next_conn_id = 0;
1237
1238         memset(hba->tgt_ofld_list, 0, sizeof(hba->tgt_ofld_list));
1239         hba->num_ofld_sess = 0;
1240
1241         return 0;
1242
1243 setup_err:
1244         fcoe_ctlr_destroy(&hba->ctlr);
1245         dev_put(netdev);
1246         bnx2fc_interface_put(hba);
1247         return rc;
1248 }
1249
1250 /**
1251  * bnx2fc_if_create - Create FCoE instance on a given interface
1252  *
1253  * @hba:        FCoE interface to create a local port on
1254  * @parent:     Device pointer to be the parent in sysfs for the SCSI host
1255  * @npiv:       Indicates if the port is vport or not
1256  *
1257  * Creates a fc_lport instance and a Scsi_Host instance and configure them.
1258  *
1259  * Returns:     Allocated fc_lport or an error pointer
1260  */
1261 static struct fc_lport *bnx2fc_if_create(struct bnx2fc_hba *hba,
1262                                   struct device *parent, int npiv)
1263 {
1264         struct fc_lport         *lport, *n_port;
1265         struct fcoe_port        *port;
1266         struct Scsi_Host        *shost;
1267         struct fc_vport         *vport = dev_to_vport(parent);
1268         struct bnx2fc_lport     *blport;
1269         int                     rc = 0;
1270
1271         blport = kzalloc(sizeof(struct bnx2fc_lport), GFP_KERNEL);
1272         if (!blport) {
1273                 BNX2FC_HBA_DBG(hba->ctlr.lp, "Unable to alloc bnx2fc_lport\n");
1274                 return NULL;
1275         }
1276
1277         /* Allocate Scsi_Host structure */
1278         if (!npiv)
1279                 lport = libfc_host_alloc(&bnx2fc_shost_template, sizeof(*port));
1280         else
1281                 lport = libfc_vport_create(vport, sizeof(*port));
1282
1283         if (!lport) {
1284                 printk(KERN_ERR PFX "could not allocate scsi host structure\n");
1285                 goto free_blport;
1286         }
1287         shost = lport->host;
1288         port = lport_priv(lport);
1289         port->lport = lport;
1290         port->priv = hba;
1291         INIT_WORK(&port->destroy_work, bnx2fc_destroy_work);
1292
1293         /* Configure fcoe_port */
1294         rc = bnx2fc_lport_config(lport);
1295         if (rc)
1296                 goto lp_config_err;
1297
1298         if (npiv) {
1299                 printk(KERN_ERR PFX "Setting vport names, 0x%llX 0x%llX\n",
1300                         vport->node_name, vport->port_name);
1301                 fc_set_wwnn(lport, vport->node_name);
1302                 fc_set_wwpn(lport, vport->port_name);
1303         }
1304         /* Configure netdev and networking properties of the lport */
1305         rc = bnx2fc_net_config(lport);
1306         if (rc) {
1307                 printk(KERN_ERR PFX "Error on bnx2fc_net_config\n");
1308                 goto lp_config_err;
1309         }
1310
1311         rc = bnx2fc_shost_config(lport, parent);
1312         if (rc) {
1313                 printk(KERN_ERR PFX "Couldnt configure shost for %s\n",
1314                         hba->netdev->name);
1315                 goto lp_config_err;
1316         }
1317
1318         /* Initialize the libfc library */
1319         rc = bnx2fc_libfc_config(lport);
1320         if (rc) {
1321                 printk(KERN_ERR PFX "Couldnt configure libfc\n");
1322                 goto shost_err;
1323         }
1324         fc_host_port_type(lport->host) = FC_PORTTYPE_UNKNOWN;
1325
1326         /* Allocate exchange manager */
1327         if (!npiv)
1328                 rc = bnx2fc_em_config(lport);
1329         else {
1330                 shost = vport_to_shost(vport);
1331                 n_port = shost_priv(shost);
1332                 rc = fc_exch_mgr_list_clone(n_port, lport);
1333         }
1334
1335         if (rc) {
1336                 printk(KERN_ERR PFX "Error on bnx2fc_em_config\n");
1337                 goto shost_err;
1338         }
1339
1340         bnx2fc_interface_get(hba);
1341
1342         spin_lock_bh(&hba->hba_lock);
1343         blport->lport = lport;
1344         list_add_tail(&blport->list, &hba->vports);
1345         spin_unlock_bh(&hba->hba_lock);
1346
1347         return lport;
1348
1349 shost_err:
1350         scsi_remove_host(shost);
1351 lp_config_err:
1352         scsi_host_put(lport->host);
1353 free_blport:
1354         kfree(blport);
1355         return NULL;
1356 }
1357
1358 static void bnx2fc_netdev_cleanup(struct bnx2fc_hba *hba)
1359 {
1360         /* Dont listen for Ethernet packets anymore */
1361         __dev_remove_pack(&hba->fcoe_packet_type);
1362         __dev_remove_pack(&hba->fip_packet_type);
1363         synchronize_net();
1364 }
1365
1366 static void bnx2fc_if_destroy(struct fc_lport *lport)
1367 {
1368         struct fcoe_port *port = lport_priv(lport);
1369         struct bnx2fc_hba *hba = port->priv;
1370         struct bnx2fc_lport *blport, *tmp;
1371
1372         BNX2FC_HBA_DBG(hba->ctlr.lp, "ENTERED bnx2fc_if_destroy\n");
1373         /* Stop the transmit retry timer */
1374         del_timer_sync(&port->timer);
1375
1376         /* Free existing transmit skbs */
1377         fcoe_clean_pending_queue(lport);
1378
1379         /* Free queued packets for the receive thread */
1380         bnx2fc_clean_rx_queue(lport);
1381
1382         /* Detach from scsi-ml */
1383         fc_remove_host(lport->host);
1384         scsi_remove_host(lport->host);
1385
1386         /*
1387          * Note that only the physical lport will have the exchange manager.
1388          * for vports, this function is NOP
1389          */
1390         fc_exch_mgr_free(lport);
1391
1392         /* Free memory used by statistical counters */
1393         fc_lport_free_stats(lport);
1394
1395         spin_lock_bh(&hba->hba_lock);
1396         list_for_each_entry_safe(blport, tmp, &hba->vports, list) {
1397                 if (blport->lport == lport) {
1398                         list_del(&blport->list);
1399                         kfree(blport);
1400                 }
1401         }
1402         spin_unlock_bh(&hba->hba_lock);
1403
1404         /* Release Scsi_Host */
1405         scsi_host_put(lport->host);
1406
1407         bnx2fc_interface_put(hba);
1408 }
1409
1410 /**
1411  * bnx2fc_destroy - Destroy a bnx2fc FCoE interface
1412  *
1413  * @buffer: The name of the Ethernet interface to be destroyed
1414  * @kp:     The associated kernel parameter
1415  *
1416  * Called from sysfs.
1417  *
1418  * Returns: 0 for success
1419  */
1420 static int bnx2fc_destroy(struct net_device *netdev)
1421 {
1422         struct bnx2fc_hba *hba = NULL;
1423         struct net_device *phys_dev;
1424         int rc = 0;
1425
1426         rtnl_lock();
1427
1428         mutex_lock(&bnx2fc_dev_lock);
1429         /* obtain physical netdev */
1430         if (netdev->priv_flags & IFF_802_1Q_VLAN)
1431                 phys_dev = vlan_dev_real_dev(netdev);
1432         else {
1433                 printk(KERN_ERR PFX "Not a vlan device\n");
1434                 rc = -ENODEV;
1435                 goto netdev_err;
1436         }
1437
1438         hba = bnx2fc_hba_lookup(phys_dev);
1439         if (!hba || !hba->ctlr.lp) {
1440                 rc = -ENODEV;
1441                 printk(KERN_ERR PFX "bnx2fc_destroy: hba or lport not found\n");
1442                 goto netdev_err;
1443         }
1444
1445         if (!test_bit(BNX2FC_CREATE_DONE, &hba->init_done)) {
1446                 printk(KERN_ERR PFX "bnx2fc_destroy: Create not called\n");
1447                 goto netdev_err;
1448         }
1449
1450         bnx2fc_netdev_cleanup(hba);
1451
1452         bnx2fc_stop(hba);
1453
1454         bnx2fc_if_destroy(hba->ctlr.lp);
1455
1456         destroy_workqueue(hba->timer_work_queue);
1457
1458         if (test_bit(BNX2FC_FW_INIT_DONE, &hba->init_done))
1459                 bnx2fc_fw_destroy(hba);
1460
1461         clear_bit(BNX2FC_CREATE_DONE, &hba->init_done);
1462 netdev_err:
1463         mutex_unlock(&bnx2fc_dev_lock);
1464         rtnl_unlock();
1465         return rc;
1466 }
1467
1468 static void bnx2fc_destroy_work(struct work_struct *work)
1469 {
1470         struct fcoe_port *port;
1471         struct fc_lport *lport;
1472
1473         port = container_of(work, struct fcoe_port, destroy_work);
1474         lport = port->lport;
1475
1476         BNX2FC_HBA_DBG(lport, "Entered bnx2fc_destroy_work\n");
1477
1478         bnx2fc_port_shutdown(lport);
1479         rtnl_lock();
1480         mutex_lock(&bnx2fc_dev_lock);
1481         bnx2fc_if_destroy(lport);
1482         mutex_unlock(&bnx2fc_dev_lock);
1483         rtnl_unlock();
1484 }
1485
1486 static void bnx2fc_unbind_adapter_devices(struct bnx2fc_hba *hba)
1487 {
1488         bnx2fc_free_fw_resc(hba);
1489         bnx2fc_free_task_ctx(hba);
1490 }
1491
1492 /**
1493  * bnx2fc_bind_adapter_devices - binds bnx2fc adapter with the associated
1494  *                      pci structure
1495  *
1496  * @hba:                Adapter instance
1497  */
1498 static int bnx2fc_bind_adapter_devices(struct bnx2fc_hba *hba)
1499 {
1500         if (bnx2fc_setup_task_ctx(hba))
1501                 goto mem_err;
1502
1503         if (bnx2fc_setup_fw_resc(hba))
1504                 goto mem_err;
1505
1506         return 0;
1507 mem_err:
1508         bnx2fc_unbind_adapter_devices(hba);
1509         return -ENOMEM;
1510 }
1511
1512 static int bnx2fc_bind_pcidev(struct bnx2fc_hba *hba)
1513 {
1514         struct cnic_dev *cnic;
1515
1516         if (!hba->cnic) {
1517                 printk(KERN_ERR PFX "cnic is NULL\n");
1518                 return -ENODEV;
1519         }
1520         cnic = hba->cnic;
1521         hba->pcidev = cnic->pcidev;
1522         if (hba->pcidev)
1523                 pci_dev_get(hba->pcidev);
1524
1525         return 0;
1526 }
1527
1528 static void bnx2fc_unbind_pcidev(struct bnx2fc_hba *hba)
1529 {
1530         if (hba->pcidev)
1531                 pci_dev_put(hba->pcidev);
1532         hba->pcidev = NULL;
1533 }
1534
1535
1536
1537 /**
1538  * bnx2fc_ulp_start - cnic callback to initialize & start adapter instance
1539  *
1540  * @handle:     transport handle pointing to adapter struture
1541  *
1542  * This function maps adapter structure to pcidev structure and initiates
1543  *      firmware handshake to enable/initialize on-chip FCoE components.
1544  *      This bnx2fc - cnic interface api callback is used after following
1545  *      conditions are met -
1546  *      a) underlying network interface is up (marked by event NETDEV_UP
1547  *              from netdev
1548  *      b) bnx2fc adatper structure is registered.
1549  */
1550 static void bnx2fc_ulp_start(void *handle)
1551 {
1552         struct bnx2fc_hba *hba = handle;
1553         struct fc_lport *lport = hba->ctlr.lp;
1554
1555         BNX2FC_MISC_DBG("Entered %s\n", __func__);
1556         mutex_lock(&bnx2fc_dev_lock);
1557
1558         if (test_bit(BNX2FC_FW_INIT_DONE, &hba->init_done))
1559                 goto start_disc;
1560
1561         if (test_bit(BNX2FC_CREATE_DONE, &hba->init_done))
1562                 bnx2fc_fw_init(hba);
1563
1564 start_disc:
1565         mutex_unlock(&bnx2fc_dev_lock);
1566
1567         BNX2FC_MISC_DBG("bnx2fc started.\n");
1568
1569         /* Kick off Fabric discovery*/
1570         if (test_bit(BNX2FC_CREATE_DONE, &hba->init_done)) {
1571                 printk(KERN_ERR PFX "ulp_init: start discovery\n");
1572                 lport->tt.frame_send = bnx2fc_xmit;
1573                 bnx2fc_start_disc(hba);
1574         }
1575 }
1576
1577 static void bnx2fc_port_shutdown(struct fc_lport *lport)
1578 {
1579         BNX2FC_MISC_DBG("Entered %s\n", __func__);
1580         fc_fabric_logoff(lport);
1581         fc_lport_destroy(lport);
1582 }
1583
1584 static void bnx2fc_stop(struct bnx2fc_hba *hba)
1585 {
1586         struct fc_lport *lport;
1587         struct fc_lport *vport;
1588
1589         BNX2FC_MISC_DBG("ENTERED %s - init_done = %ld\n", __func__,
1590                    hba->init_done);
1591         if (test_bit(BNX2FC_FW_INIT_DONE, &hba->init_done) &&
1592             test_bit(BNX2FC_CREATE_DONE, &hba->init_done)) {
1593                 lport = hba->ctlr.lp;
1594                 bnx2fc_port_shutdown(lport);
1595                 BNX2FC_HBA_DBG(lport, "bnx2fc_stop: waiting for %d "
1596                                 "offloaded sessions\n",
1597                                 hba->num_ofld_sess);
1598                 wait_event_interruptible(hba->shutdown_wait,
1599                                          (hba->num_ofld_sess == 0));
1600                 mutex_lock(&lport->lp_mutex);
1601                 list_for_each_entry(vport, &lport->vports, list)
1602                         fc_host_port_type(vport->host) = FC_PORTTYPE_UNKNOWN;
1603                 mutex_unlock(&lport->lp_mutex);
1604                 fc_host_port_type(lport->host) = FC_PORTTYPE_UNKNOWN;
1605                 fcoe_ctlr_link_down(&hba->ctlr);
1606                 fcoe_clean_pending_queue(lport);
1607
1608                 mutex_lock(&hba->hba_mutex);
1609                 clear_bit(ADAPTER_STATE_UP, &hba->adapter_state);
1610                 clear_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state);
1611
1612                 clear_bit(ADAPTER_STATE_READY, &hba->adapter_state);
1613                 mutex_unlock(&hba->hba_mutex);
1614         }
1615 }
1616
1617 static int bnx2fc_fw_init(struct bnx2fc_hba *hba)
1618 {
1619 #define BNX2FC_INIT_POLL_TIME           (1000 / HZ)
1620         int rc = -1;
1621         int i = HZ;
1622
1623         rc = bnx2fc_bind_adapter_devices(hba);
1624         if (rc) {
1625                 printk(KERN_ALERT PFX
1626                         "bnx2fc_bind_adapter_devices failed - rc = %d\n", rc);
1627                 goto err_out;
1628         }
1629
1630         rc = bnx2fc_send_fw_fcoe_init_msg(hba);
1631         if (rc) {
1632                 printk(KERN_ALERT PFX
1633                         "bnx2fc_send_fw_fcoe_init_msg failed - rc = %d\n", rc);
1634                 goto err_unbind;
1635         }
1636
1637         /*
1638          * Wait until the adapter init message is complete, and adapter
1639          * state is UP.
1640          */
1641         while (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state) && i--)
1642                 msleep(BNX2FC_INIT_POLL_TIME);
1643
1644         if (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state)) {
1645                 printk(KERN_ERR PFX "bnx2fc_start: %s failed to initialize.  "
1646                                 "Ignoring...\n",
1647                                 hba->cnic->netdev->name);
1648                 rc = -1;
1649                 goto err_unbind;
1650         }
1651
1652
1653         /* Mark HBA to indicate that the FW INIT is done */
1654         set_bit(BNX2FC_FW_INIT_DONE, &hba->init_done);
1655         return 0;
1656
1657 err_unbind:
1658         bnx2fc_unbind_adapter_devices(hba);
1659 err_out:
1660         return rc;
1661 }
1662
1663 static void bnx2fc_fw_destroy(struct bnx2fc_hba *hba)
1664 {
1665         if (test_and_clear_bit(BNX2FC_FW_INIT_DONE, &hba->init_done)) {
1666                 if (bnx2fc_send_fw_fcoe_destroy_msg(hba) == 0) {
1667                         init_timer(&hba->destroy_timer);
1668                         hba->destroy_timer.expires = BNX2FC_FW_TIMEOUT +
1669                                                                 jiffies;
1670                         hba->destroy_timer.function = bnx2fc_destroy_timer;
1671                         hba->destroy_timer.data = (unsigned long)hba;
1672                         add_timer(&hba->destroy_timer);
1673                         wait_event_interruptible(hba->destroy_wait,
1674                                                  (hba->flags &
1675                                                   BNX2FC_FLAG_DESTROY_CMPL));
1676                         /* This should never happen */
1677                         if (signal_pending(current))
1678                                 flush_signals(current);
1679
1680                         del_timer_sync(&hba->destroy_timer);
1681                 }
1682                 bnx2fc_unbind_adapter_devices(hba);
1683         }
1684 }
1685
1686 /**
1687  * bnx2fc_ulp_stop - cnic callback to shutdown adapter instance
1688  *
1689  * @handle:     transport handle pointing to adapter structure
1690  *
1691  * Driver checks if adapter is already in shutdown mode, if not start
1692  *      the shutdown process.
1693  */
1694 static void bnx2fc_ulp_stop(void *handle)
1695 {
1696         struct bnx2fc_hba *hba = (struct bnx2fc_hba *)handle;
1697
1698         printk(KERN_ERR "ULP_STOP\n");
1699
1700         mutex_lock(&bnx2fc_dev_lock);
1701         bnx2fc_stop(hba);
1702         bnx2fc_fw_destroy(hba);
1703         mutex_unlock(&bnx2fc_dev_lock);
1704 }
1705
1706 static void bnx2fc_start_disc(struct bnx2fc_hba *hba)
1707 {
1708         struct fc_lport *lport;
1709         int wait_cnt = 0;
1710
1711         BNX2FC_MISC_DBG("Entered %s\n", __func__);
1712         /* Kick off FIP/FLOGI */
1713         if (!test_bit(BNX2FC_FW_INIT_DONE, &hba->init_done)) {
1714                 printk(KERN_ERR PFX "Init not done yet\n");
1715                 return;
1716         }
1717
1718         lport = hba->ctlr.lp;
1719         BNX2FC_HBA_DBG(lport, "calling fc_fabric_login\n");
1720
1721         if (!bnx2fc_link_ok(lport)) {
1722                 BNX2FC_HBA_DBG(lport, "ctlr_link_up\n");
1723                 fcoe_ctlr_link_up(&hba->ctlr);
1724                 fc_host_port_type(lport->host) = FC_PORTTYPE_NPORT;
1725                 set_bit(ADAPTER_STATE_READY, &hba->adapter_state);
1726         }
1727
1728         /* wait for the FCF to be selected before issuing FLOGI */
1729         while (!hba->ctlr.sel_fcf) {
1730                 msleep(250);
1731                 /* give up after 3 secs */
1732                 if (++wait_cnt > 12)
1733                         break;
1734         }
1735         fc_lport_init(lport);
1736         fc_fabric_login(lport);
1737 }
1738
1739
1740 /**
1741  * bnx2fc_ulp_init - Initialize an adapter instance
1742  *
1743  * @dev :       cnic device handle
1744  * Called from cnic_register_driver() context to initialize all
1745  *      enumerated cnic devices. This routine allocates adapter structure
1746  *      and other device specific resources.
1747  */
1748 static void bnx2fc_ulp_init(struct cnic_dev *dev)
1749 {
1750         struct bnx2fc_hba *hba;
1751         int rc = 0;
1752
1753         BNX2FC_MISC_DBG("Entered %s\n", __func__);
1754         /* bnx2fc works only when bnx2x is loaded */
1755         if (!test_bit(CNIC_F_BNX2X_CLASS, &dev->flags)) {
1756                 printk(KERN_ERR PFX "bnx2fc FCoE not supported on %s,"
1757                                     " flags: %lx\n",
1758                         dev->netdev->name, dev->flags);
1759                 return;
1760         }
1761
1762         /* Configure FCoE interface */
1763         hba = bnx2fc_interface_create(dev);
1764         if (!hba) {
1765                 printk(KERN_ERR PFX "hba initialization failed\n");
1766                 return;
1767         }
1768
1769         /* Add HBA to the adapter list */
1770         mutex_lock(&bnx2fc_dev_lock);
1771         list_add_tail(&hba->link, &adapter_list);
1772         adapter_count++;
1773         mutex_unlock(&bnx2fc_dev_lock);
1774
1775         clear_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic);
1776         rc = dev->register_device(dev, CNIC_ULP_FCOE,
1777                                                 (void *) hba);
1778         if (rc)
1779                 printk(KERN_ALERT PFX "register_device failed, rc = %d\n", rc);
1780         else
1781                 set_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic);
1782 }
1783
1784
1785 static int bnx2fc_disable(struct net_device *netdev)
1786 {
1787         struct bnx2fc_hba *hba;
1788         struct net_device *phys_dev;
1789         struct ethtool_drvinfo drvinfo;
1790         int rc = 0;
1791
1792         rtnl_lock();
1793
1794         mutex_lock(&bnx2fc_dev_lock);
1795
1796         /* obtain physical netdev */
1797         if (netdev->priv_flags & IFF_802_1Q_VLAN)
1798                 phys_dev = vlan_dev_real_dev(netdev);
1799         else {
1800                 printk(KERN_ERR PFX "Not a vlan device\n");
1801                 rc = -ENODEV;
1802                 goto nodev;
1803         }
1804
1805         /* verify if the physical device is a netxtreme2 device */
1806         if (phys_dev->ethtool_ops && phys_dev->ethtool_ops->get_drvinfo) {
1807                 memset(&drvinfo, 0, sizeof(drvinfo));
1808                 phys_dev->ethtool_ops->get_drvinfo(phys_dev, &drvinfo);
1809                 if (strcmp(drvinfo.driver, "bnx2x")) {
1810                         printk(KERN_ERR PFX "Not a netxtreme2 device\n");
1811                         rc = -ENODEV;
1812                         goto nodev;
1813                 }
1814         } else {
1815                 printk(KERN_ERR PFX "unable to obtain drv_info\n");
1816                 rc = -ENODEV;
1817                 goto nodev;
1818         }
1819
1820         printk(KERN_ERR PFX "phys_dev is netxtreme2 device\n");
1821
1822         /* obtain hba and initialize rest of the structure */
1823         hba = bnx2fc_hba_lookup(phys_dev);
1824         if (!hba || !hba->ctlr.lp) {
1825                 rc = -ENODEV;
1826                 printk(KERN_ERR PFX "bnx2fc_disable: hba or lport not found\n");
1827         } else {
1828                 fcoe_ctlr_link_down(&hba->ctlr);
1829                 fcoe_clean_pending_queue(hba->ctlr.lp);
1830         }
1831
1832 nodev:
1833         mutex_unlock(&bnx2fc_dev_lock);
1834         rtnl_unlock();
1835         return rc;
1836 }
1837
1838
1839 static int bnx2fc_enable(struct net_device *netdev)
1840 {
1841         struct bnx2fc_hba *hba;
1842         struct net_device *phys_dev;
1843         struct ethtool_drvinfo drvinfo;
1844         int rc = 0;
1845
1846         rtnl_lock();
1847
1848         BNX2FC_MISC_DBG("Entered %s\n", __func__);
1849         mutex_lock(&bnx2fc_dev_lock);
1850
1851         /* obtain physical netdev */
1852         if (netdev->priv_flags & IFF_802_1Q_VLAN)
1853                 phys_dev = vlan_dev_real_dev(netdev);
1854         else {
1855                 printk(KERN_ERR PFX "Not a vlan device\n");
1856                 rc = -ENODEV;
1857                 goto nodev;
1858         }
1859         /* verify if the physical device is a netxtreme2 device */
1860         if (phys_dev->ethtool_ops && phys_dev->ethtool_ops->get_drvinfo) {
1861                 memset(&drvinfo, 0, sizeof(drvinfo));
1862                 phys_dev->ethtool_ops->get_drvinfo(phys_dev, &drvinfo);
1863                 if (strcmp(drvinfo.driver, "bnx2x")) {
1864                         printk(KERN_ERR PFX "Not a netxtreme2 device\n");
1865                         rc = -ENODEV;
1866                         goto nodev;
1867                 }
1868         } else {
1869                 printk(KERN_ERR PFX "unable to obtain drv_info\n");
1870                 rc = -ENODEV;
1871                 goto nodev;
1872         }
1873
1874         /* obtain hba and initialize rest of the structure */
1875         hba = bnx2fc_hba_lookup(phys_dev);
1876         if (!hba || !hba->ctlr.lp) {
1877                 rc = -ENODEV;
1878                 printk(KERN_ERR PFX "bnx2fc_enable: hba or lport not found\n");
1879         } else if (!bnx2fc_link_ok(hba->ctlr.lp))
1880                 fcoe_ctlr_link_up(&hba->ctlr);
1881
1882 nodev:
1883         mutex_unlock(&bnx2fc_dev_lock);
1884         rtnl_unlock();
1885         return rc;
1886 }
1887
1888 /**
1889  * bnx2fc_create - Create bnx2fc FCoE interface
1890  *
1891  * @buffer: The name of Ethernet interface to create on
1892  * @kp:     The associated kernel param
1893  *
1894  * Called from sysfs.
1895  *
1896  * Returns: 0 for success
1897  */
1898 static int bnx2fc_create(struct net_device *netdev, enum fip_state fip_mode)
1899 {
1900         struct bnx2fc_hba *hba;
1901         struct net_device *phys_dev;
1902         struct fc_lport *lport;
1903         struct ethtool_drvinfo drvinfo;
1904         int rc = 0;
1905         int vlan_id;
1906
1907         BNX2FC_MISC_DBG("Entered bnx2fc_create\n");
1908         if (fip_mode != FIP_MODE_FABRIC) {
1909                 printk(KERN_ERR "fip mode not FABRIC\n");
1910                 return -EIO;
1911         }
1912
1913         rtnl_lock();
1914
1915         mutex_lock(&bnx2fc_dev_lock);
1916
1917         if (!try_module_get(THIS_MODULE)) {
1918                 rc = -EINVAL;
1919                 goto mod_err;
1920         }
1921
1922         /* obtain physical netdev */
1923         if (netdev->priv_flags & IFF_802_1Q_VLAN) {
1924                 phys_dev = vlan_dev_real_dev(netdev);
1925                 vlan_id = vlan_dev_vlan_id(netdev);
1926         } else {
1927                 printk(KERN_ERR PFX "Not a vlan device\n");
1928                 rc = -EINVAL;
1929                 goto netdev_err;
1930         }
1931         /* verify if the physical device is a netxtreme2 device */
1932         if (phys_dev->ethtool_ops && phys_dev->ethtool_ops->get_drvinfo) {
1933                 memset(&drvinfo, 0, sizeof(drvinfo));
1934                 phys_dev->ethtool_ops->get_drvinfo(phys_dev, &drvinfo);
1935                 if (strcmp(drvinfo.driver, "bnx2x")) {
1936                         printk(KERN_ERR PFX "Not a netxtreme2 device\n");
1937                         rc = -EINVAL;
1938                         goto netdev_err;
1939                 }
1940         } else {
1941                 printk(KERN_ERR PFX "unable to obtain drv_info\n");
1942                 rc = -EINVAL;
1943                 goto netdev_err;
1944         }
1945
1946         /* obtain hba and initialize rest of the structure */
1947         hba = bnx2fc_hba_lookup(phys_dev);
1948         if (!hba) {
1949                 rc = -ENODEV;
1950                 printk(KERN_ERR PFX "bnx2fc_create: hba not found\n");
1951                 goto netdev_err;
1952         }
1953
1954         if (!test_bit(BNX2FC_FW_INIT_DONE, &hba->init_done)) {
1955                 rc = bnx2fc_fw_init(hba);
1956                 if (rc)
1957                         goto netdev_err;
1958         }
1959
1960         if (test_bit(BNX2FC_CREATE_DONE, &hba->init_done)) {
1961                 rc = -EEXIST;
1962                 goto netdev_err;
1963         }
1964
1965         /* update netdev with vlan netdev */
1966         hba->netdev = netdev;
1967         hba->vlan_id = vlan_id;
1968         hba->vlan_enabled = 1;
1969
1970         rc = bnx2fc_interface_setup(hba, fip_mode);
1971         if (rc) {
1972                 printk(KERN_ERR PFX "bnx2fc_interface_setup failed\n");
1973                 goto ifput_err;
1974         }
1975
1976         hba->timer_work_queue =
1977                         create_singlethread_workqueue("bnx2fc_timer_wq");
1978         if (!hba->timer_work_queue) {
1979                 printk(KERN_ERR PFX "ulp_init could not create timer_wq\n");
1980                 rc = -EINVAL;
1981                 goto ifput_err;
1982         }
1983
1984         lport = bnx2fc_if_create(hba, &hba->pcidev->dev, 0);
1985         if (!lport) {
1986                 printk(KERN_ERR PFX "Failed to create interface (%s)\n",
1987                         netdev->name);
1988                 bnx2fc_netdev_cleanup(hba);
1989                 rc = -EINVAL;
1990                 goto if_create_err;
1991         }
1992
1993         lport->boot_time = jiffies;
1994
1995         /* Make this master N_port */
1996         hba->ctlr.lp = lport;
1997
1998         set_bit(BNX2FC_CREATE_DONE, &hba->init_done);
1999         printk(KERN_ERR PFX "create: START DISC\n");
2000         bnx2fc_start_disc(hba);
2001         /*
2002          * Release from kref_init in bnx2fc_interface_setup, on success
2003          * lport should be holding a reference taken in bnx2fc_if_create
2004          */
2005         bnx2fc_interface_put(hba);
2006         /* put netdev that was held while calling dev_get_by_name */
2007         mutex_unlock(&bnx2fc_dev_lock);
2008         rtnl_unlock();
2009         return 0;
2010
2011 if_create_err:
2012         destroy_workqueue(hba->timer_work_queue);
2013 ifput_err:
2014         bnx2fc_interface_put(hba);
2015 netdev_err:
2016         module_put(THIS_MODULE);
2017 mod_err:
2018         mutex_unlock(&bnx2fc_dev_lock);
2019         rtnl_unlock();
2020         return rc;
2021 }
2022
2023 /**
2024  * bnx2fc_find_hba_for_cnic - maps cnic instance to bnx2fc adapter instance
2025  *
2026  * @cnic:       Pointer to cnic device instance
2027  *
2028  **/
2029 static struct bnx2fc_hba *bnx2fc_find_hba_for_cnic(struct cnic_dev *cnic)
2030 {
2031         struct list_head *list;
2032         struct list_head *temp;
2033         struct bnx2fc_hba *hba;
2034
2035         /* Called with bnx2fc_dev_lock held */
2036         list_for_each_safe(list, temp, &adapter_list) {
2037                 hba = (struct bnx2fc_hba *)list;
2038                 if (hba->cnic == cnic)
2039                         return hba;
2040         }
2041         return NULL;
2042 }
2043
2044 static struct bnx2fc_hba *bnx2fc_hba_lookup(struct net_device *phys_dev)
2045 {
2046         struct list_head *list;
2047         struct list_head *temp;
2048         struct bnx2fc_hba *hba;
2049
2050         /* Called with bnx2fc_dev_lock held */
2051         list_for_each_safe(list, temp, &adapter_list) {
2052                 hba = (struct bnx2fc_hba *)list;
2053                 if (hba->phys_dev == phys_dev)
2054                         return hba;
2055         }
2056         printk(KERN_ERR PFX "hba_lookup: hba NULL\n");
2057         return NULL;
2058 }
2059
2060 /**
2061  * bnx2fc_ulp_exit - shuts down adapter instance and frees all resources
2062  *
2063  * @dev         cnic device handle
2064  */
2065 static void bnx2fc_ulp_exit(struct cnic_dev *dev)
2066 {
2067         struct bnx2fc_hba *hba;
2068
2069         BNX2FC_MISC_DBG("Entered bnx2fc_ulp_exit\n");
2070
2071         if (!test_bit(CNIC_F_BNX2X_CLASS, &dev->flags)) {
2072                 printk(KERN_ERR PFX "bnx2fc port check: %s, flags: %lx\n",
2073                         dev->netdev->name, dev->flags);
2074                 return;
2075         }
2076
2077         mutex_lock(&bnx2fc_dev_lock);
2078         hba = bnx2fc_find_hba_for_cnic(dev);
2079         if (!hba) {
2080                 printk(KERN_ERR PFX "bnx2fc_ulp_exit: hba not found, dev 0%p\n",
2081                        dev);
2082                 mutex_unlock(&bnx2fc_dev_lock);
2083                 return;
2084         }
2085
2086         list_del_init(&hba->link);
2087         adapter_count--;
2088
2089         if (test_bit(BNX2FC_CREATE_DONE, &hba->init_done)) {
2090                 /* destroy not called yet, move to quiesced list */
2091                 bnx2fc_netdev_cleanup(hba);
2092                 bnx2fc_if_destroy(hba->ctlr.lp);
2093         }
2094         mutex_unlock(&bnx2fc_dev_lock);
2095
2096         bnx2fc_ulp_stop(hba);
2097         /* unregister cnic device */
2098         if (test_and_clear_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic))
2099                 hba->cnic->unregister_device(hba->cnic, CNIC_ULP_FCOE);
2100         bnx2fc_interface_destroy(hba);
2101 }
2102
2103 /**
2104  * bnx2fc_fcoe_reset - Resets the fcoe
2105  *
2106  * @shost: shost the reset is from
2107  *
2108  * Returns: always 0
2109  */
2110 static int bnx2fc_fcoe_reset(struct Scsi_Host *shost)
2111 {
2112         struct fc_lport *lport = shost_priv(shost);
2113         fc_lport_reset(lport);
2114         return 0;
2115 }
2116
2117
2118 static bool bnx2fc_match(struct net_device *netdev)
2119 {
2120         mutex_lock(&bnx2fc_dev_lock);
2121         if (netdev->priv_flags & IFF_802_1Q_VLAN) {
2122                 struct net_device *phys_dev = vlan_dev_real_dev(netdev);
2123
2124                 if (bnx2fc_hba_lookup(phys_dev)) {
2125                         mutex_unlock(&bnx2fc_dev_lock);
2126                         return true;
2127                 }
2128         }
2129         mutex_unlock(&bnx2fc_dev_lock);
2130         return false;
2131 }
2132
2133
2134 static struct fcoe_transport bnx2fc_transport = {
2135         .name = {"bnx2fc"},
2136         .attached = false,
2137         .list = LIST_HEAD_INIT(bnx2fc_transport.list),
2138         .match = bnx2fc_match,
2139         .create = bnx2fc_create,
2140         .destroy = bnx2fc_destroy,
2141         .enable = bnx2fc_enable,
2142         .disable = bnx2fc_disable,
2143 };
2144
2145 /**
2146  * bnx2fc_percpu_thread_create - Create a receive thread for an
2147  *                               online CPU
2148  *
2149  * @cpu: cpu index for the online cpu
2150  */
2151 static void bnx2fc_percpu_thread_create(unsigned int cpu)
2152 {
2153         struct bnx2fc_percpu_s *p;
2154         struct task_struct *thread;
2155
2156         p = &per_cpu(bnx2fc_percpu, cpu);
2157
2158         thread = kthread_create(bnx2fc_percpu_io_thread,
2159                                 (void *)p,
2160                                 "bnx2fc_thread/%d", cpu);
2161         /* bind thread to the cpu */
2162         if (likely(!IS_ERR(p->iothread))) {
2163                 kthread_bind(thread, cpu);
2164                 p->iothread = thread;
2165                 wake_up_process(thread);
2166         }
2167 }
2168
2169 static void bnx2fc_percpu_thread_destroy(unsigned int cpu)
2170 {
2171         struct bnx2fc_percpu_s *p;
2172         struct task_struct *thread;
2173         struct bnx2fc_work *work, *tmp;
2174         LIST_HEAD(work_list);
2175
2176         BNX2FC_MISC_DBG("destroying io thread for CPU %d\n", cpu);
2177
2178         /* Prevent any new work from being queued for this CPU */
2179         p = &per_cpu(bnx2fc_percpu, cpu);
2180         spin_lock_bh(&p->fp_work_lock);
2181         thread = p->iothread;
2182         p->iothread = NULL;
2183
2184
2185         /* Free all work in the list */
2186         list_for_each_entry_safe(work, tmp, &work_list, list) {
2187                 list_del_init(&work->list);
2188                 bnx2fc_process_cq_compl(work->tgt, work->wqe);
2189                 kfree(work);
2190         }
2191
2192         spin_unlock_bh(&p->fp_work_lock);
2193
2194         if (thread)
2195                 kthread_stop(thread);
2196 }
2197
2198 /**
2199  * bnx2fc_cpu_callback - Handler for CPU hotplug events
2200  *
2201  * @nfb:    The callback data block
2202  * @action: The event triggering the callback
2203  * @hcpu:   The index of the CPU that the event is for
2204  *
2205  * This creates or destroys per-CPU data for fcoe
2206  *
2207  * Returns NOTIFY_OK always.
2208  */
2209 static int bnx2fc_cpu_callback(struct notifier_block *nfb,
2210                              unsigned long action, void *hcpu)
2211 {
2212         unsigned cpu = (unsigned long)hcpu;
2213
2214         switch (action) {
2215         case CPU_ONLINE:
2216         case CPU_ONLINE_FROZEN:
2217                 printk(PFX "CPU %x online: Create Rx thread\n", cpu);
2218                 bnx2fc_percpu_thread_create(cpu);
2219                 break;
2220         case CPU_DEAD:
2221         case CPU_DEAD_FROZEN:
2222                 printk(PFX "CPU %x offline: Remove Rx thread\n", cpu);
2223                 bnx2fc_percpu_thread_destroy(cpu);
2224                 break;
2225         default:
2226                 break;
2227         }
2228         return NOTIFY_OK;
2229 }
2230
2231 /**
2232  * bnx2fc_mod_init - module init entry point
2233  *
2234  * Initialize driver wide global data structures, and register
2235  * with cnic module
2236  **/
2237 static int __init bnx2fc_mod_init(void)
2238 {
2239         struct fcoe_percpu_s *bg;
2240         struct task_struct *l2_thread;
2241         int rc = 0;
2242         unsigned int cpu = 0;
2243         struct bnx2fc_percpu_s *p;
2244
2245         printk(KERN_INFO PFX "%s", version);
2246
2247         /* register as a fcoe transport */
2248         rc = fcoe_transport_attach(&bnx2fc_transport);
2249         if (rc) {
2250                 printk(KERN_ERR "failed to register an fcoe transport, check "
2251                         "if libfcoe is loaded\n");
2252                 goto out;
2253         }
2254
2255         INIT_LIST_HEAD(&adapter_list);
2256         mutex_init(&bnx2fc_dev_lock);
2257         adapter_count = 0;
2258
2259         /* Attach FC transport template */
2260         rc = bnx2fc_attach_transport();
2261         if (rc)
2262                 goto detach_ft;
2263
2264         bnx2fc_wq = alloc_workqueue("bnx2fc", 0, 0);
2265         if (!bnx2fc_wq) {
2266                 rc = -ENOMEM;
2267                 goto release_bt;
2268         }
2269
2270         bg = &bnx2fc_global;
2271         skb_queue_head_init(&bg->fcoe_rx_list);
2272         l2_thread = kthread_create(bnx2fc_l2_rcv_thread,
2273                                    (void *)bg,
2274                                    "bnx2fc_l2_thread");
2275         if (IS_ERR(l2_thread)) {
2276                 rc = PTR_ERR(l2_thread);
2277                 goto free_wq;
2278         }
2279         wake_up_process(l2_thread);
2280         spin_lock_bh(&bg->fcoe_rx_list.lock);
2281         bg->thread = l2_thread;
2282         spin_unlock_bh(&bg->fcoe_rx_list.lock);
2283
2284         for_each_possible_cpu(cpu) {
2285                 p = &per_cpu(bnx2fc_percpu, cpu);
2286                 INIT_LIST_HEAD(&p->work_list);
2287                 spin_lock_init(&p->fp_work_lock);
2288         }
2289
2290         for_each_online_cpu(cpu) {
2291                 bnx2fc_percpu_thread_create(cpu);
2292         }
2293
2294         /* Initialize per CPU interrupt thread */
2295         register_hotcpu_notifier(&bnx2fc_cpu_notifier);
2296
2297         cnic_register_driver(CNIC_ULP_FCOE, &bnx2fc_cnic_cb);
2298
2299         return 0;
2300
2301 free_wq:
2302         destroy_workqueue(bnx2fc_wq);
2303 release_bt:
2304         bnx2fc_release_transport();
2305 detach_ft:
2306         fcoe_transport_detach(&bnx2fc_transport);
2307 out:
2308         return rc;
2309 }
2310
2311 static void __exit bnx2fc_mod_exit(void)
2312 {
2313         LIST_HEAD(to_be_deleted);
2314         struct bnx2fc_hba *hba, *next;
2315         struct fcoe_percpu_s *bg;
2316         struct task_struct *l2_thread;
2317         struct sk_buff *skb;
2318         unsigned int cpu = 0;
2319
2320         /*
2321          * NOTE: Since cnic calls register_driver routine rtnl_lock,
2322          * it will have higher precedence than bnx2fc_dev_lock.
2323          * unregister_device() cannot be called with bnx2fc_dev_lock
2324          * held.
2325          */
2326         mutex_lock(&bnx2fc_dev_lock);
2327         list_splice(&adapter_list, &to_be_deleted);
2328         INIT_LIST_HEAD(&adapter_list);
2329         adapter_count = 0;
2330         mutex_unlock(&bnx2fc_dev_lock);
2331
2332         /* Unregister with cnic */
2333         list_for_each_entry_safe(hba, next, &to_be_deleted, link) {
2334                 list_del_init(&hba->link);
2335                 printk(KERN_ERR PFX "MOD_EXIT:destroy hba = 0x%p, kref = %d\n",
2336                         hba, atomic_read(&hba->kref.refcount));
2337                 bnx2fc_ulp_stop(hba);
2338                 /* unregister cnic device */
2339                 if (test_and_clear_bit(BNX2FC_CNIC_REGISTERED,
2340                                        &hba->reg_with_cnic))
2341                         hba->cnic->unregister_device(hba->cnic, CNIC_ULP_FCOE);
2342                 bnx2fc_interface_destroy(hba);
2343         }
2344         cnic_unregister_driver(CNIC_ULP_FCOE);
2345
2346         /* Destroy global thread */
2347         bg = &bnx2fc_global;
2348         spin_lock_bh(&bg->fcoe_rx_list.lock);
2349         l2_thread = bg->thread;
2350         bg->thread = NULL;
2351         while ((skb = __skb_dequeue(&bg->fcoe_rx_list)) != NULL)
2352                 kfree_skb(skb);
2353
2354         spin_unlock_bh(&bg->fcoe_rx_list.lock);
2355
2356         if (l2_thread)
2357                 kthread_stop(l2_thread);
2358
2359         unregister_hotcpu_notifier(&bnx2fc_cpu_notifier);
2360
2361         /* Destroy per cpu threads */
2362         for_each_online_cpu(cpu) {
2363                 bnx2fc_percpu_thread_destroy(cpu);
2364         }
2365
2366         destroy_workqueue(bnx2fc_wq);
2367         /*
2368          * detach from scsi transport
2369          * must happen after all destroys are done
2370          */
2371         bnx2fc_release_transport();
2372
2373         /* detach from fcoe transport */
2374         fcoe_transport_detach(&bnx2fc_transport);
2375 }
2376
2377 module_init(bnx2fc_mod_init);
2378 module_exit(bnx2fc_mod_exit);
2379
2380 static struct fc_function_template bnx2fc_transport_function = {
2381         .show_host_node_name = 1,
2382         .show_host_port_name = 1,
2383         .show_host_supported_classes = 1,
2384         .show_host_supported_fc4s = 1,
2385         .show_host_active_fc4s = 1,
2386         .show_host_maxframe_size = 1,
2387
2388         .show_host_port_id = 1,
2389         .show_host_supported_speeds = 1,
2390         .get_host_speed = fc_get_host_speed,
2391         .show_host_speed = 1,
2392         .show_host_port_type = 1,
2393         .get_host_port_state = fc_get_host_port_state,
2394         .show_host_port_state = 1,
2395         .show_host_symbolic_name = 1,
2396
2397         .dd_fcrport_size = (sizeof(struct fc_rport_libfc_priv) +
2398                                 sizeof(struct bnx2fc_rport)),
2399         .show_rport_maxframe_size = 1,
2400         .show_rport_supported_classes = 1,
2401
2402         .show_host_fabric_name = 1,
2403         .show_starget_node_name = 1,
2404         .show_starget_port_name = 1,
2405         .show_starget_port_id = 1,
2406         .set_rport_dev_loss_tmo = fc_set_rport_loss_tmo,
2407         .show_rport_dev_loss_tmo = 1,
2408         .get_fc_host_stats = bnx2fc_get_host_stats,
2409
2410         .issue_fc_host_lip = bnx2fc_fcoe_reset,
2411
2412         .terminate_rport_io = fc_rport_terminate_io,
2413
2414         .vport_create = bnx2fc_vport_create,
2415         .vport_delete = bnx2fc_vport_destroy,
2416         .vport_disable = bnx2fc_vport_disable,
2417 };
2418
2419 static struct fc_function_template bnx2fc_vport_xport_function = {
2420         .show_host_node_name = 1,
2421         .show_host_port_name = 1,
2422         .show_host_supported_classes = 1,
2423         .show_host_supported_fc4s = 1,
2424         .show_host_active_fc4s = 1,
2425         .show_host_maxframe_size = 1,
2426
2427         .show_host_port_id = 1,
2428         .show_host_supported_speeds = 1,
2429         .get_host_speed = fc_get_host_speed,
2430         .show_host_speed = 1,
2431         .show_host_port_type = 1,
2432         .get_host_port_state = fc_get_host_port_state,
2433         .show_host_port_state = 1,
2434         .show_host_symbolic_name = 1,
2435
2436         .dd_fcrport_size = (sizeof(struct fc_rport_libfc_priv) +
2437                                 sizeof(struct bnx2fc_rport)),
2438         .show_rport_maxframe_size = 1,
2439         .show_rport_supported_classes = 1,
2440
2441         .show_host_fabric_name = 1,
2442         .show_starget_node_name = 1,
2443         .show_starget_port_name = 1,
2444         .show_starget_port_id = 1,
2445         .set_rport_dev_loss_tmo = fc_set_rport_loss_tmo,
2446         .show_rport_dev_loss_tmo = 1,
2447         .get_fc_host_stats = fc_get_host_stats,
2448         .issue_fc_host_lip = bnx2fc_fcoe_reset,
2449         .terminate_rport_io = fc_rport_terminate_io,
2450 };
2451
2452 /**
2453  * scsi_host_template structure used while registering with SCSI-ml
2454  */
2455 static struct scsi_host_template bnx2fc_shost_template = {
2456         .module                 = THIS_MODULE,
2457         .name                   = "Broadcom Offload FCoE Initiator",
2458         .queuecommand           = bnx2fc_queuecommand,
2459         .eh_abort_handler       = bnx2fc_eh_abort,        /* abts */
2460         .eh_device_reset_handler = bnx2fc_eh_device_reset, /* lun reset */
2461         .eh_target_reset_handler = bnx2fc_eh_target_reset, /* tgt reset */
2462         .eh_host_reset_handler  = fc_eh_host_reset,
2463         .slave_alloc            = fc_slave_alloc,
2464         .change_queue_depth     = fc_change_queue_depth,
2465         .change_queue_type      = fc_change_queue_type,
2466         .this_id                = -1,
2467         .cmd_per_lun            = 3,
2468         .can_queue              = BNX2FC_CAN_QUEUE,
2469         .use_clustering         = ENABLE_CLUSTERING,
2470         .sg_tablesize           = BNX2FC_MAX_BDS_PER_CMD,
2471         .max_sectors            = 512,
2472 };
2473
2474 static struct libfc_function_template bnx2fc_libfc_fcn_templ = {
2475         .frame_send             = bnx2fc_xmit,
2476         .elsct_send             = bnx2fc_elsct_send,
2477         .fcp_abort_io           = bnx2fc_abort_io,
2478         .fcp_cleanup            = bnx2fc_cleanup,
2479         .rport_event_callback   = bnx2fc_rport_event_handler,
2480 };
2481
2482 /**
2483  * bnx2fc_cnic_cb - global template of bnx2fc - cnic driver interface
2484  *                      structure carrying callback function pointers
2485  */
2486 static struct cnic_ulp_ops bnx2fc_cnic_cb = {
2487         .owner                  = THIS_MODULE,
2488         .cnic_init              = bnx2fc_ulp_init,
2489         .cnic_exit              = bnx2fc_ulp_exit,
2490         .cnic_start             = bnx2fc_ulp_start,
2491         .cnic_stop              = bnx2fc_ulp_stop,
2492         .indicate_kcqes         = bnx2fc_indicate_kcqe,
2493         .indicate_netevent      = bnx2fc_indicate_netevent,
2494 };