drivers/scsi/bnx2fc/bnx2fc_fcoe.c

   1 /* bnx2fc_fcoe.c: QLogic 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) 2008-2013 Broadcom Corporation
   7  * Copyright (c) 2014-2016 QLogic Corporation
   8  * Copyright (c) 2016-2017 Cavium Inc.
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation.
  13  *
  14  * Written by: Bhanu Prakash Gollapudi ([email protected])
  15  */
  16
  17 #include "bnx2fc.h"
  18
  19 #include <linux/ethtool.h>
  20
  21 static struct list_head adapter_list;
  22 static struct list_head if_list;
  23 static u32 adapter_count;
  24 static DEFINE_MUTEX(bnx2fc_dev_lock);
  25 DEFINE_PER_CPU(struct bnx2fc_percpu_s, bnx2fc_percpu);
  26
  27 #define DRV_MODULE_NAME         "bnx2fc"
  28 #define DRV_MODULE_VERSION      BNX2FC_VERSION
  29 #define DRV_MODULE_RELDATE      "October 15, 2015"
  30
  31
  32 static char version[] =
  33                 "QLogic FCoE Driver " DRV_MODULE_NAME \
  34                 " v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n";
  35
  36
  37 MODULE_AUTHOR("Bhanu Prakash Gollapudi <[email protected]>");
  38 MODULE_DESCRIPTION("QLogic FCoE Driver");
  39 MODULE_LICENSE("GPL");
  40 MODULE_VERSION(DRV_MODULE_VERSION);
  41
  42 #define BNX2FC_MAX_QUEUE_DEPTH  256
  43 #define BNX2FC_MIN_QUEUE_DEPTH  32
  44 #define FCOE_WORD_TO_BYTE  4
  45
  46 static struct scsi_transport_template   *bnx2fc_transport_template;
  47 static struct scsi_transport_template   *bnx2fc_vport_xport_template;
  48
  49 struct workqueue_struct *bnx2fc_wq;
  50
  51 /* bnx2fc structure needs only one instance of the fcoe_percpu_s structure.
  52  * Here the io threads are per cpu but the l2 thread is just one
  53  */
  54 struct fcoe_percpu_s bnx2fc_global;
  55 static DEFINE_SPINLOCK(bnx2fc_global_lock);
  56
  57 static struct cnic_ulp_ops bnx2fc_cnic_cb;
  58 static struct libfc_function_template bnx2fc_libfc_fcn_templ;
  59 static struct scsi_host_template bnx2fc_shost_template;
  60 static struct fc_function_template bnx2fc_transport_function;
  61 static struct fcoe_sysfs_function_template bnx2fc_fcoe_sysfs_templ;
  62 static struct fc_function_template bnx2fc_vport_xport_function;
  63 static int bnx2fc_create(struct net_device *netdev, enum fip_mode fip_mode);
  64 static void __bnx2fc_destroy(struct bnx2fc_interface *interface);
  65 static int bnx2fc_destroy(struct net_device *net_device);
  66 static int bnx2fc_enable(struct net_device *netdev);
  67 static int bnx2fc_disable(struct net_device *netdev);
  68
  69 /* fcoe_syfs control interface handlers */
  70 static int bnx2fc_ctlr_alloc(struct net_device *netdev);
  71 static int bnx2fc_ctlr_enabled(struct fcoe_ctlr_device *cdev);
  72
  73 static void bnx2fc_recv_frame(struct sk_buff *skb);
  74
  75 static void bnx2fc_start_disc(struct bnx2fc_interface *interface);
  76 static int bnx2fc_shost_config(struct fc_lport *lport, struct device *dev);
  77 static int bnx2fc_lport_config(struct fc_lport *lport);
  78 static int bnx2fc_em_config(struct fc_lport *lport, struct bnx2fc_hba *hba);
  79 static int bnx2fc_bind_adapter_devices(struct bnx2fc_hba *hba);
  80 static void bnx2fc_unbind_adapter_devices(struct bnx2fc_hba *hba);
  81 static int bnx2fc_bind_pcidev(struct bnx2fc_hba *hba);
  82 static void bnx2fc_unbind_pcidev(struct bnx2fc_hba *hba);
  83 static struct fc_lport *bnx2fc_if_create(struct bnx2fc_interface *interface,
  84                                   struct device *parent, int npiv);
  85 static void bnx2fc_destroy_work(struct work_struct *work);
  86
  87 static struct bnx2fc_hba *bnx2fc_hba_lookup(struct net_device *phys_dev);
  88 static struct bnx2fc_interface *bnx2fc_interface_lookup(struct net_device
  89                                                         *phys_dev);
  90 static inline void bnx2fc_interface_put(struct bnx2fc_interface *interface);
  91 static struct bnx2fc_hba *bnx2fc_find_hba_for_cnic(struct cnic_dev *cnic);
  92
  93 static int bnx2fc_fw_init(struct bnx2fc_hba *hba);
  94 static void bnx2fc_fw_destroy(struct bnx2fc_hba *hba);
  95
  96 static void bnx2fc_port_shutdown(struct fc_lport *lport);
  97 static void bnx2fc_stop(struct bnx2fc_interface *interface);
  98 static int __init bnx2fc_mod_init(void);
  99 static void __exit bnx2fc_mod_exit(void);
 100
 101 unsigned int bnx2fc_debug_level;
 102 module_param_named(debug_logging, bnx2fc_debug_level, int, S_IRUGO|S_IWUSR);
 103 MODULE_PARM_DESC(debug_logging,
 104                 "Option to enable extended logging,\n"
 105                 "\t\tDefault is 0 - no logging.\n"
 106                 "\t\t0x01 - SCSI cmd error, cleanup.\n"
 107                 "\t\t0x02 - Session setup, cleanup, etc.\n"
 108                 "\t\t0x04 - lport events, link, mtu, etc.\n"
 109                 "\t\t0x08 - ELS logs.\n"
 110                 "\t\t0x10 - fcoe L2 fame related logs.\n"
 111                 "\t\t0xff - LOG all messages.");
 112
 113 static uint bnx2fc_devloss_tmo;
 114 module_param_named(devloss_tmo, bnx2fc_devloss_tmo, uint, S_IRUGO);
 115 MODULE_PARM_DESC(devloss_tmo, " Change devloss_tmo for the remote ports "
 116         "attached via bnx2fc.");
 117
 118 static uint bnx2fc_max_luns = BNX2FC_MAX_LUN;
 119 module_param_named(max_luns, bnx2fc_max_luns, uint, S_IRUGO);
 120 MODULE_PARM_DESC(max_luns, " Change the default max_lun per SCSI host. Default "
 121         "0xffff.");
 122
 123 static uint bnx2fc_queue_depth;
 124 module_param_named(queue_depth, bnx2fc_queue_depth, uint, S_IRUGO);
 125 MODULE_PARM_DESC(queue_depth, " Change the default queue depth of SCSI devices "
 126         "attached via bnx2fc.");
 127
 128 static uint bnx2fc_log_fka;
 129 module_param_named(log_fka, bnx2fc_log_fka, uint, S_IRUGO|S_IWUSR);
 130 MODULE_PARM_DESC(log_fka, " Print message to kernel log when fcoe is "
 131         "initiating a FIP keep alive when debug logging is enabled.");
 132
 133 static inline struct net_device *bnx2fc_netdev(const struct fc_lport *lport)
 134 {
 135         return ((struct bnx2fc_interface *)
 136                 ((struct fcoe_port *)lport_priv(lport))->priv)->netdev;
 137 }
 138
 139 static void bnx2fc_fcf_get_vlan_id(struct fcoe_fcf_device *fcf_dev)
 140 {
 141         struct fcoe_ctlr_device *ctlr_dev =
 142                 fcoe_fcf_dev_to_ctlr_dev(fcf_dev);
 143         struct fcoe_ctlr *ctlr = fcoe_ctlr_device_priv(ctlr_dev);
 144         struct bnx2fc_interface *fcoe = fcoe_ctlr_priv(ctlr);
 145
 146         fcf_dev->vlan_id = fcoe->vlan_id;
 147 }
 148
 149 static void bnx2fc_clean_rx_queue(struct fc_lport *lp)
 150 {
 151         struct fcoe_percpu_s *bg;
 152         struct fcoe_rcv_info *fr;
 153         struct sk_buff_head *list;
 154         struct sk_buff *skb, *next;
 155
 156         bg = &bnx2fc_global;
 157         spin_lock_bh(&bg->fcoe_rx_list.lock);
 158         list = &bg->fcoe_rx_list;
 159         skb_queue_walk_safe(list, skb, next) {
 160                 fr = fcoe_dev_from_skb(skb);
 161                 if (fr->fr_dev == lp) {
 162                         __skb_unlink(skb, list);
 163                         kfree_skb(skb);
 164                 }
 165         }
 166         spin_unlock_bh(&bg->fcoe_rx_list.lock);
 167 }
 168
 169 int bnx2fc_get_paged_crc_eof(struct sk_buff *skb, int tlen)
 170 {
 171         int rc;
 172         spin_lock(&bnx2fc_global_lock);
 173         rc = fcoe_get_paged_crc_eof(skb, tlen, &bnx2fc_global);
 174         spin_unlock(&bnx2fc_global_lock);
 175
 176         return rc;
 177 }
 178
 179 static void bnx2fc_abort_io(struct fc_lport *lport)
 180 {
 181         /*
 182          * This function is no-op for bnx2fc, but we do
 183          * not want to leave it as NULL either, as libfc
 184          * can call the default function which is
 185          * fc_fcp_abort_io.
 186          */
 187 }
 188
 189 static void bnx2fc_cleanup(struct fc_lport *lport)
 190 {
 191         struct fcoe_port *port = lport_priv(lport);
 192         struct bnx2fc_interface *interface = port->priv;
 193         struct bnx2fc_hba *hba = interface->hba;
 194         struct bnx2fc_rport *tgt;
 195         int i;
 196
 197         BNX2FC_MISC_DBG("Entered %s\n", __func__);
 198         mutex_lock(&hba->hba_mutex);
 199         spin_lock_bh(&hba->hba_lock);
 200         for (i = 0; i < BNX2FC_NUM_MAX_SESS; i++) {
 201                 tgt = hba->tgt_ofld_list[i];
 202                 if (tgt) {
 203                         /* Cleanup IOs belonging to requested vport */
 204                         if (tgt->port == port) {
 205                                 spin_unlock_bh(&hba->hba_lock);
 206                                 BNX2FC_TGT_DBG(tgt, "flush/cleanup\n");
 207                                 bnx2fc_flush_active_ios(tgt);
 208                                 spin_lock_bh(&hba->hba_lock);
 209                         }
 210                 }
 211         }
 212         spin_unlock_bh(&hba->hba_lock);
 213         mutex_unlock(&hba->hba_mutex);
 214 }
 215
 216 static int bnx2fc_xmit_l2_frame(struct bnx2fc_rport *tgt,
 217                              struct fc_frame *fp)
 218 {
 219         struct fc_rport_priv *rdata = tgt->rdata;
 220         struct fc_frame_header *fh;
 221         int rc = 0;
 222
 223         fh = fc_frame_header_get(fp);
 224         BNX2FC_TGT_DBG(tgt, "Xmit L2 frame rport = 0x%x, oxid = 0x%x, "
 225                         "r_ctl = 0x%x\n", rdata->ids.port_id,
 226                         ntohs(fh->fh_ox_id), fh->fh_r_ctl);
 227         if ((fh->fh_type == FC_TYPE_ELS) &&
 228             (fh->fh_r_ctl == FC_RCTL_ELS_REQ)) {
 229
 230                 switch (fc_frame_payload_op(fp)) {
 231                 case ELS_ADISC:
 232                         rc = bnx2fc_send_adisc(tgt, fp);
 233                         break;
 234                 case ELS_LOGO:
 235                         rc = bnx2fc_send_logo(tgt, fp);
 236                         break;
 237                 case ELS_RLS:
 238                         rc = bnx2fc_send_rls(tgt, fp);
 239                         break;
 240                 default:
 241                         break;
 242                 }
 243         } else if ((fh->fh_type ==  FC_TYPE_BLS) &&
 244             (fh->fh_r_ctl == FC_RCTL_BA_ABTS))
 245                 BNX2FC_TGT_DBG(tgt, "ABTS frame\n");
 246         else {
 247                 BNX2FC_TGT_DBG(tgt, "Send L2 frame type 0x%x "
 248                                 "rctl 0x%x thru non-offload path\n",
 249                                 fh->fh_type, fh->fh_r_ctl);
 250                 return -ENODEV;
 251         }
 252         if (rc)
 253                 return -ENOMEM;
 254         else
 255                 return 0;
 256 }
 257
 258 /**
 259  * bnx2fc_xmit - bnx2fc's FCoE frame transmit function
 260  *
 261  * @lport:      the associated local port
 262  * @fp: the fc_frame to be transmitted
 263  */
 264 static int bnx2fc_xmit(struct fc_lport *lport, struct fc_frame *fp)
 265 {
 266         struct ethhdr           *eh;
 267         struct fcoe_crc_eof     *cp;
 268         struct sk_buff          *skb;
 269         struct fc_frame_header  *fh;
 270         struct bnx2fc_interface *interface;
 271         struct fcoe_ctlr        *ctlr;
 272         struct bnx2fc_hba *hba;
 273         struct fcoe_port        *port;
 274         struct fcoe_hdr         *hp;
 275         struct bnx2fc_rport     *tgt;
 276         struct fc_stats         *stats;
 277         u8                      sof, eof;
 278         u32                     crc;
 279         unsigned int            hlen, tlen, elen;
 280         int                     wlen, rc = 0;
 281
 282         port = (struct fcoe_port *)lport_priv(lport);
 283         interface = port->priv;
 284         ctlr = bnx2fc_to_ctlr(interface);
 285         hba = interface->hba;
 286
 287         fh = fc_frame_header_get(fp);
 288
 289         skb = fp_skb(fp);
 290         if (!lport->link_up) {
 291                 BNX2FC_HBA_DBG(lport, "bnx2fc_xmit link down\n");
 292                 kfree_skb(skb);
 293                 return 0;
 294         }
 295
 296         if (unlikely(fh->fh_r_ctl == FC_RCTL_ELS_REQ)) {
 297                 if (!ctlr->sel_fcf) {
 298                         BNX2FC_HBA_DBG(lport, "FCF not selected yet!\n");
 299                         kfree_skb(skb);
 300                         return -EINVAL;
 301                 }
 302                 if (fcoe_ctlr_els_send(ctlr, lport, skb))
 303                         return 0;
 304         }
 305
 306         sof = fr_sof(fp);
 307         eof = fr_eof(fp);
 308
 309         /*
 310          * Snoop the frame header to check if the frame is for
 311          * an offloaded session
 312          */
 313         /*
 314          * tgt_ofld_list access is synchronized using
 315          * both hba mutex and hba lock. Atleast hba mutex or
 316          * hba lock needs to be held for read access.
 317          */
 318
 319         spin_lock_bh(&hba->hba_lock);
 320         tgt = bnx2fc_tgt_lookup(port, ntoh24(fh->fh_d_id));
 321         if (tgt && (test_bit(BNX2FC_FLAG_SESSION_READY, &tgt->flags))) {
 322                 /* This frame is for offloaded session */
 323                 BNX2FC_HBA_DBG(lport, "xmit: Frame is for offloaded session "
 324                                 "port_id = 0x%x\n", ntoh24(fh->fh_d_id));
 325                 spin_unlock_bh(&hba->hba_lock);
 326                 rc = bnx2fc_xmit_l2_frame(tgt, fp);
 327                 if (rc != -ENODEV) {
 328                         kfree_skb(skb);
 329                         return rc;
 330                 }
 331         } else {
 332                 spin_unlock_bh(&hba->hba_lock);
 333         }
 334
 335         elen = sizeof(struct ethhdr);
 336         hlen = sizeof(struct fcoe_hdr);
 337         tlen = sizeof(struct fcoe_crc_eof);
 338         wlen = (skb->len - tlen + sizeof(crc)) / FCOE_WORD_TO_BYTE;
 339
 340         skb->ip_summed = CHECKSUM_NONE;
 341         crc = fcoe_fc_crc(fp);
 342
 343         /* copy port crc and eof to the skb buff */
 344         if (skb_is_nonlinear(skb)) {
 345                 skb_frag_t *frag;
 346                 if (bnx2fc_get_paged_crc_eof(skb, tlen)) {
 347                         kfree_skb(skb);
 348                         return -ENOMEM;
 349                 }
 350                 frag = &skb_shinfo(skb)->frags[skb_shinfo(skb)->nr_frags - 1];
 351                 cp = kmap_atomic(skb_frag_page(frag)) + skb_frag_off(frag);
 352         } else {
 353                 cp = skb_put(skb, tlen);
 354         }
 355
 356         memset(cp, 0, sizeof(*cp));
 357         cp->fcoe_eof = eof;
 358         cp->fcoe_crc32 = cpu_to_le32(~crc);
 359         if (skb_is_nonlinear(skb)) {
 360                 kunmap_atomic(cp);
 361                 cp = NULL;
 362         }
 363
 364         /* adjust skb network/transport offsets to match mac/fcoe/port */
 365         skb_push(skb, elen + hlen);
 366         skb_reset_mac_header(skb);
 367         skb_reset_network_header(skb);
 368         skb->mac_len = elen;
 369         skb->protocol = htons(ETH_P_FCOE);
 370         skb->dev = interface->netdev;
 371
 372         /* fill up mac and fcoe headers */
 373         eh = eth_hdr(skb);
 374         eh->h_proto = htons(ETH_P_FCOE);
 375         if (ctlr->map_dest)
 376                 fc_fcoe_set_mac(eh->h_dest, fh->fh_d_id);
 377         else
 378                 /* insert GW address */
 379                 memcpy(eh->h_dest, ctlr->dest_addr, ETH_ALEN);
 380
 381         if (unlikely(ctlr->flogi_oxid != FC_XID_UNKNOWN))
 382                 memcpy(eh->h_source, ctlr->ctl_src_addr, ETH_ALEN);
 383         else
 384                 memcpy(eh->h_source, port->data_src_addr, ETH_ALEN);
 385
 386         hp = (struct fcoe_hdr *)(eh + 1);
 387         memset(hp, 0, sizeof(*hp));
 388         if (FC_FCOE_VER)
 389                 FC_FCOE_ENCAPS_VER(hp, FC_FCOE_VER);
 390         hp->fcoe_sof = sof;
 391
 392         /* fcoe lso, mss is in max_payload which is non-zero for FCP data */
 393         if (lport->seq_offload && fr_max_payload(fp)) {
 394                 skb_shinfo(skb)->gso_type = SKB_GSO_FCOE;
 395                 skb_shinfo(skb)->gso_size = fr_max_payload(fp);
 396         } else {
 397                 skb_shinfo(skb)->gso_type = 0;
 398                 skb_shinfo(skb)->gso_size = 0;
 399         }
 400
 401         /*update tx stats */
 402         stats = per_cpu_ptr(lport->stats, get_cpu());
 403         stats->TxFrames++;
 404         stats->TxWords += wlen;
 405         put_cpu();
 406
 407         /* send down to lld */
 408         fr_dev(fp) = lport;
 409         if (port->fcoe_pending_queue.qlen)
 410                 fcoe_check_wait_queue(lport, skb);
 411         else if (fcoe_start_io(skb))
 412                 fcoe_check_wait_queue(lport, skb);
 413
 414         return 0;
 415 }
 416
 417 /**
 418  * bnx2fc_rcv - This is bnx2fc's receive function called by NET_RX_SOFTIRQ
 419  *
 420  * @skb:        the receive socket buffer
 421  * @dev:        associated net device
 422  * @ptype:      context
 423  * @olddev:     last device
 424  *
 425  * This function receives the packet and builds FC frame and passes it up
 426  */
 427 static int bnx2fc_rcv(struct sk_buff *skb, struct net_device *dev,
 428                 struct packet_type *ptype, struct net_device *olddev)
 429 {
 430         struct fc_lport *lport;
 431         struct bnx2fc_interface *interface;
 432         struct fcoe_ctlr *ctlr;
 433         struct fcoe_rcv_info *fr;
 434         struct fcoe_percpu_s *bg;
 435         struct sk_buff *tmp_skb;
 436
 437         interface = container_of(ptype, struct bnx2fc_interface,
 438                                  fcoe_packet_type);
 439         ctlr = bnx2fc_to_ctlr(interface);
 440         lport = ctlr->lp;
 441
 442         if (unlikely(lport == NULL)) {
 443                 printk(KERN_ERR PFX "bnx2fc_rcv: lport is NULL\n");
 444                 goto err;
 445         }
 446
 447         tmp_skb = skb_share_check(skb, GFP_ATOMIC);
 448         if (!tmp_skb)
 449                 goto err;
 450
 451         skb = tmp_skb;
 452
 453         if (unlikely(eth_hdr(skb)->h_proto != htons(ETH_P_FCOE))) {
 454                 printk(KERN_ERR PFX "bnx2fc_rcv: Wrong FC type frame\n");
 455                 goto err;
 456         }
 457
 458         /*
 459          * Check for minimum frame length, and make sure required FCoE
 460          * and FC headers are pulled into the linear data area.
 461          */
 462         if (unlikely((skb->len < FCOE_MIN_FRAME) ||
 463             !pskb_may_pull(skb, FCOE_HEADER_LEN)))
 464                 goto err;
 465
 466         skb_set_transport_header(skb, sizeof(struct fcoe_hdr));
 467
 468         fr = fcoe_dev_from_skb(skb);
 469         fr->fr_dev = lport;
 470
 471         bg = &bnx2fc_global;
 472         spin_lock(&bg->fcoe_rx_list.lock);
 473
 474         __skb_queue_tail(&bg->fcoe_rx_list, skb);
 475         if (bg->fcoe_rx_list.qlen == 1)
 476                 wake_up_process(bg->kthread);
 477
 478         spin_unlock(&bg->fcoe_rx_list.lock);
 479
 480         return 0;
 481 err:
 482         kfree_skb(skb);
 483         return -1;
 484 }
 485
 486 static int bnx2fc_l2_rcv_thread(void *arg)
 487 {
 488         struct fcoe_percpu_s *bg = arg;
 489         struct sk_buff *skb;
 490
 491         set_user_nice(current, MIN_NICE);
 492         set_current_state(TASK_INTERRUPTIBLE);
 493         while (!kthread_should_stop()) {
 494                 schedule();
 495                 spin_lock_bh(&bg->fcoe_rx_list.lock);
 496                 while ((skb = __skb_dequeue(&bg->fcoe_rx_list)) != NULL) {
 497                         spin_unlock_bh(&bg->fcoe_rx_list.lock);
 498                         bnx2fc_recv_frame(skb);
 499                         spin_lock_bh(&bg->fcoe_rx_list.lock);
 500                 }
 501                 __set_current_state(TASK_INTERRUPTIBLE);
 502                 spin_unlock_bh(&bg->fcoe_rx_list.lock);
 503         }
 504         __set_current_state(TASK_RUNNING);
 505         return 0;
 506 }
 507
 508
 509 static void bnx2fc_recv_frame(struct sk_buff *skb)
 510 {
 511         u32 fr_len;
 512         struct fc_lport *lport;
 513         struct fcoe_rcv_info *fr;
 514         struct fc_stats *stats;
 515         struct fc_frame_header *fh;
 516         struct fcoe_crc_eof crc_eof;
 517         struct fc_frame *fp;
 518         struct fc_lport *vn_port;
 519         struct fcoe_port *port, *phys_port;
 520         u8 *mac = NULL;
 521         u8 *dest_mac = NULL;
 522         struct fcoe_hdr *hp;
 523         struct bnx2fc_interface *interface;
 524         struct fcoe_ctlr *ctlr;
 525
 526         fr = fcoe_dev_from_skb(skb);
 527         lport = fr->fr_dev;
 528         if (unlikely(lport == NULL)) {
 529                 printk(KERN_ERR PFX "Invalid lport struct\n");
 530                 kfree_skb(skb);
 531                 return;
 532         }
 533
 534         if (skb_is_nonlinear(skb))
 535                 skb_linearize(skb);
 536         mac = eth_hdr(skb)->h_source;
 537         dest_mac = eth_hdr(skb)->h_dest;
 538
 539         /* Pull the header */
 540         hp = (struct fcoe_hdr *) skb_network_header(skb);
 541         fh = (struct fc_frame_header *) skb_transport_header(skb);
 542         skb_pull(skb, sizeof(struct fcoe_hdr));
 543         fr_len = skb->len - sizeof(struct fcoe_crc_eof);
 544
 545         fp = (struct fc_frame *)skb;
 546         fc_frame_init(fp);
 547         fr_dev(fp) = lport;
 548         fr_sof(fp) = hp->fcoe_sof;
 549         if (skb_copy_bits(skb, fr_len, &crc_eof, sizeof(crc_eof))) {
 550                 kfree_skb(skb);
 551                 return;
 552         }
 553         fr_eof(fp) = crc_eof.fcoe_eof;
 554         fr_crc(fp) = crc_eof.fcoe_crc32;
 555         if (pskb_trim(skb, fr_len)) {
 556                 kfree_skb(skb);
 557                 return;
 558         }
 559
 560         phys_port = lport_priv(lport);
 561         interface = phys_port->priv;
 562         ctlr = bnx2fc_to_ctlr(interface);
 563
 564         fh = fc_frame_header_get(fp);
 565
 566         if (ntoh24(&dest_mac[3]) != ntoh24(fh->fh_d_id)) {
 567                 BNX2FC_HBA_DBG(lport, "FC frame d_id mismatch with MAC %pM.\n",
 568                     dest_mac);
 569                 kfree_skb(skb);
 570                 return;
 571         }
 572
 573         vn_port = fc_vport_id_lookup(lport, ntoh24(fh->fh_d_id));
 574         if (vn_port) {
 575                 port = lport_priv(vn_port);
 576                 if (!ether_addr_equal(port->data_src_addr, dest_mac)) {
 577                         BNX2FC_HBA_DBG(lport, "fpma mismatch\n");
 578                         kfree_skb(skb);
 579                         return;
 580                 }
 581         }
 582         if (ctlr->state) {
 583                 if (!ether_addr_equal(mac, ctlr->dest_addr)) {
 584                         BNX2FC_HBA_DBG(lport, "Wrong source address: mac:%pM dest_addr:%pM.\n",
 585                             mac, ctlr->dest_addr);
 586                         kfree_skb(skb);
 587                         return;
 588                 }
 589         }
 590         if (fh->fh_r_ctl == FC_RCTL_DD_SOL_DATA &&
 591             fh->fh_type == FC_TYPE_FCP) {
 592                 /* Drop FCP data. We dont this in L2 path */
 593                 kfree_skb(skb);
 594                 return;
 595         }
 596         if (fh->fh_r_ctl == FC_RCTL_ELS_REQ &&
 597             fh->fh_type == FC_TYPE_ELS) {
 598                 switch (fc_frame_payload_op(fp)) {
 599                 case ELS_LOGO:
 600                         if (ntoh24(fh->fh_s_id) == FC_FID_FLOGI) {
 601                                 /* drop non-FIP LOGO */
 602                                 kfree_skb(skb);
 603                                 return;
 604                         }
 605                         break;
 606                 }
 607         }
 608
 609         if (fh->fh_r_ctl == FC_RCTL_BA_ABTS) {
 610                 /* Drop incoming ABTS */
 611                 kfree_skb(skb);
 612                 return;
 613         }
 614
 615         /*
 616          * If the destination ID from the frame header does not match what we
 617          * have on record for lport and the search for a NPIV port came up
 618          * empty then this is not addressed to our port so simply drop it.
 619          */
 620         if (lport->port_id != ntoh24(fh->fh_d_id) && !vn_port) {
 621                 BNX2FC_HBA_DBG(lport, "Dropping frame due to destination mismatch: lport->port_id=%x fh->d_id=%x.\n",
 622                     lport->port_id, ntoh24(fh->fh_d_id));
 623                 kfree_skb(skb);
 624                 return;
 625         }
 626
 627         stats = per_cpu_ptr(lport->stats, smp_processor_id());
 628         stats->RxFrames++;
 629         stats->RxWords += fr_len / FCOE_WORD_TO_BYTE;
 630
 631         if (le32_to_cpu(fr_crc(fp)) !=
 632                         ~crc32(~0, skb->data, fr_len)) {
 633                 if (stats->InvalidCRCCount < 5)
 634                         printk(KERN_WARNING PFX "dropping frame with "
 635                                "CRC error\n");
 636                 stats->InvalidCRCCount++;
 637                 kfree_skb(skb);
 638                 return;
 639         }
 640         fc_exch_recv(lport, fp);
 641 }
 642
 643 /**
 644  * bnx2fc_percpu_io_thread - thread per cpu for ios
 645  *
 646  * @arg:        ptr to bnx2fc_percpu_info structure
 647  */
 648 static int bnx2fc_percpu_io_thread(void *arg)
 649 {
 650         struct bnx2fc_percpu_s *p = arg;
 651         struct bnx2fc_work *work, *tmp;
 652         LIST_HEAD(work_list);
 653
 654         set_user_nice(current, MIN_NICE);
 655         set_current_state(TASK_INTERRUPTIBLE);
 656         while (!kthread_should_stop()) {
 657                 schedule();
 658                 spin_lock_bh(&p->fp_work_lock);
 659                 while (!list_empty(&p->work_list)) {
 660                         list_splice_init(&p->work_list, &work_list);
 661                         spin_unlock_bh(&p->fp_work_lock);
 662
 663                         list_for_each_entry_safe(work, tmp, &work_list, list) {
 664                                 list_del_init(&work->list);
 665                                 bnx2fc_process_cq_compl(work->tgt, work->wqe,
 666                                                         work->rq_data,
 667                                                         work->num_rq,
 668                                                         work->task);
 669                                 kfree(work);
 670                         }
 671
 672                         spin_lock_bh(&p->fp_work_lock);
 673                 }
 674                 __set_current_state(TASK_INTERRUPTIBLE);
 675                 spin_unlock_bh(&p->fp_work_lock);
 676         }
 677         __set_current_state(TASK_RUNNING);
 678
 679         return 0;
 680 }
 681
 682 static struct fc_host_statistics *bnx2fc_get_host_stats(struct Scsi_Host *shost)
 683 {
 684         struct fc_host_statistics *bnx2fc_stats;
 685         struct fc_lport *lport = shost_priv(shost);
 686         struct fcoe_port *port = lport_priv(lport);
 687         struct bnx2fc_interface *interface = port->priv;
 688         struct bnx2fc_hba *hba = interface->hba;
 689         struct fcoe_statistics_params *fw_stats;
 690         int rc = 0;
 691
 692         fw_stats = (struct fcoe_statistics_params *)hba->stats_buffer;
 693         if (!fw_stats)
 694                 return NULL;
 695
 696         mutex_lock(&hba->hba_stats_mutex);
 697
 698         bnx2fc_stats = fc_get_host_stats(shost);
 699
 700         init_completion(&hba->stat_req_done);
 701         if (bnx2fc_send_stat_req(hba))
 702                 goto unlock_stats_mutex;
 703         rc = wait_for_completion_timeout(&hba->stat_req_done, (2 * HZ));
 704         if (!rc) {
 705                 BNX2FC_HBA_DBG(lport, "FW stat req timed out\n");
 706                 goto unlock_stats_mutex;
 707         }
 708         BNX2FC_STATS(hba, rx_stat2, fc_crc_cnt);
 709         bnx2fc_stats->invalid_crc_count += hba->bfw_stats.fc_crc_cnt;
 710         BNX2FC_STATS(hba, tx_stat, fcoe_tx_pkt_cnt);
 711         bnx2fc_stats->tx_frames += hba->bfw_stats.fcoe_tx_pkt_cnt;
 712         BNX2FC_STATS(hba, tx_stat, fcoe_tx_byte_cnt);
 713         bnx2fc_stats->tx_words += ((hba->bfw_stats.fcoe_tx_byte_cnt) / 4);
 714         BNX2FC_STATS(hba, rx_stat0, fcoe_rx_pkt_cnt);
 715         bnx2fc_stats->rx_frames += hba->bfw_stats.fcoe_rx_pkt_cnt;
 716         BNX2FC_STATS(hba, rx_stat0, fcoe_rx_byte_cnt);
 717         bnx2fc_stats->rx_words += ((hba->bfw_stats.fcoe_rx_byte_cnt) / 4);
 718
 719         bnx2fc_stats->dumped_frames = 0;
 720         bnx2fc_stats->lip_count = 0;
 721         bnx2fc_stats->nos_count = 0;
 722         bnx2fc_stats->loss_of_sync_count = 0;
 723         bnx2fc_stats->loss_of_signal_count = 0;
 724         bnx2fc_stats->prim_seq_protocol_err_count = 0;
 725
 726         memcpy(&hba->prev_stats, hba->stats_buffer,
 727                sizeof(struct fcoe_statistics_params));
 728
 729 unlock_stats_mutex:
 730         mutex_unlock(&hba->hba_stats_mutex);
 731         return bnx2fc_stats;
 732 }
 733
 734 static int bnx2fc_shost_config(struct fc_lport *lport, struct device *dev)
 735 {
 736         struct fcoe_port *port = lport_priv(lport);
 737         struct bnx2fc_interface *interface = port->priv;
 738         struct bnx2fc_hba *hba = interface->hba;
 739         struct Scsi_Host *shost = lport->host;
 740         int rc = 0;
 741
 742         shost->max_cmd_len = BNX2FC_MAX_CMD_LEN;
 743         shost->max_lun = bnx2fc_max_luns;
 744         shost->max_id = BNX2FC_MAX_FCP_TGT;
 745         shost->max_channel = 0;
 746         if (lport->vport)
 747                 shost->transportt = bnx2fc_vport_xport_template;
 748         else
 749                 shost->transportt = bnx2fc_transport_template;
 750
 751         /* Add the new host to SCSI-ml */
 752         rc = scsi_add_host(lport->host, dev);
 753         if (rc) {
 754                 printk(KERN_ERR PFX "Error on scsi_add_host\n");
 755                 return rc;
 756         }
 757         if (!lport->vport)
 758                 fc_host_max_npiv_vports(lport->host) = USHRT_MAX;
 759         snprintf(fc_host_symbolic_name(lport->host), 256,
 760                  "%s (QLogic %s) v%s over %s",
 761                 BNX2FC_NAME, hba->chip_num, BNX2FC_VERSION,
 762                 interface->netdev->name);
 763
 764         return 0;
 765 }
 766
 767 static int bnx2fc_link_ok(struct fc_lport *lport)
 768 {
 769         struct fcoe_port *port = lport_priv(lport);
 770         struct bnx2fc_interface *interface = port->priv;
 771         struct bnx2fc_hba *hba = interface->hba;
 772         struct net_device *dev = hba->phys_dev;
 773         int rc = 0;
 774
 775         if ((dev->flags & IFF_UP) && netif_carrier_ok(dev))
 776                 clear_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
 777         else {
 778                 set_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
 779                 rc = -1;
 780         }
 781         return rc;
 782 }
 783
 784 /**
 785  * bnx2fc_get_link_state - get network link state
 786  *
 787  * @hba:        adapter instance pointer
 788  *
 789  * updates adapter structure flag based on netdev state
 790  */
 791 void bnx2fc_get_link_state(struct bnx2fc_hba *hba)
 792 {
 793         if (test_bit(__LINK_STATE_NOCARRIER, &hba->phys_dev->state))
 794                 set_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
 795         else
 796                 clear_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
 797 }
 798
 799 static int bnx2fc_net_config(struct fc_lport *lport, struct net_device *netdev)
 800 {
 801         struct bnx2fc_hba *hba;
 802         struct bnx2fc_interface *interface;
 803         struct fcoe_ctlr *ctlr;
 804         struct fcoe_port *port;
 805         u64 wwnn, wwpn;
 806
 807         port = lport_priv(lport);
 808         interface = port->priv;
 809         ctlr = bnx2fc_to_ctlr(interface);
 810         hba = interface->hba;
 811
 812         /* require support for get_pauseparam ethtool op. */
 813         if (!hba->phys_dev->ethtool_ops ||
 814             !hba->phys_dev->ethtool_ops->get_pauseparam)
 815                 return -EOPNOTSUPP;
 816
 817         if (fc_set_mfs(lport, BNX2FC_MFS))
 818                 return -EINVAL;
 819
 820         skb_queue_head_init(&port->fcoe_pending_queue);
 821         port->fcoe_pending_queue_active = 0;
 822         timer_setup(&port->timer, fcoe_queue_timer, 0);
 823
 824         fcoe_link_speed_update(lport);
 825
 826         if (!lport->vport) {
 827                 if (fcoe_get_wwn(netdev, &wwnn, NETDEV_FCOE_WWNN))
 828                         wwnn = fcoe_wwn_from_mac(ctlr->ctl_src_addr,
 829                                                  1, 0);
 830                 BNX2FC_HBA_DBG(lport, "WWNN = 0x%llx\n", wwnn);
 831                 fc_set_wwnn(lport, wwnn);
 832
 833                 if (fcoe_get_wwn(netdev, &wwpn, NETDEV_FCOE_WWPN))
 834                         wwpn = fcoe_wwn_from_mac(ctlr->ctl_src_addr,
 835                                                  2, 0);
 836
 837                 BNX2FC_HBA_DBG(lport, "WWPN = 0x%llx\n", wwpn);
 838                 fc_set_wwpn(lport, wwpn);
 839         }
 840
 841         return 0;
 842 }
 843
 844 static void bnx2fc_destroy_timer(struct timer_list *t)
 845 {
 846         struct bnx2fc_hba *hba = from_timer(hba, t, destroy_timer);
 847
 848         printk(KERN_ERR PFX "ERROR:bnx2fc_destroy_timer - "
 849                "Destroy compl not received!!\n");
 850         set_bit(BNX2FC_FLAG_DESTROY_CMPL, &hba->flags);
 851         wake_up_interruptible(&hba->destroy_wait);
 852 }
 853
 854 /**
 855  * bnx2fc_indicate_netevent - Generic netdev event handler
 856  *
 857  * @context:    adapter structure pointer
 858  * @event:      event type
 859  * @vlan_id:    vlan id - associated vlan id with this event
 860  *
 861  * Handles NETDEV_UP, NETDEV_DOWN, NETDEV_GOING_DOWN,NETDEV_CHANGE and
 862  * NETDEV_CHANGE_MTU events. Handle NETDEV_UNREGISTER only for vlans.
 863  */
 864 static void bnx2fc_indicate_netevent(void *context, unsigned long event,
 865                                      u16 vlan_id)
 866 {
 867         struct bnx2fc_hba *hba = (struct bnx2fc_hba *)context;
 868         struct fcoe_ctlr_device *cdev;
 869         struct fc_lport *lport;
 870         struct fc_lport *vport;
 871         struct bnx2fc_interface *interface, *tmp;
 872         struct fcoe_ctlr *ctlr;
 873         int wait_for_upload = 0;
 874         u32 link_possible = 1;
 875
 876         if (vlan_id != 0 && event != NETDEV_UNREGISTER)
 877                 return;
 878
 879         switch (event) {
 880         case NETDEV_UP:
 881                 if (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state))
 882                         printk(KERN_ERR "indicate_netevent: "\
 883                                         "hba is not UP!!\n");
 884                 break;
 885
 886         case NETDEV_DOWN:
 887                 clear_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state);
 888                 clear_bit(ADAPTER_STATE_UP, &hba->adapter_state);
 889                 link_possible = 0;
 890                 break;
 891
 892         case NETDEV_GOING_DOWN:
 893                 set_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state);
 894                 link_possible = 0;
 895                 break;
 896
 897         case NETDEV_CHANGE:
 898                 break;
 899
 900         case NETDEV_UNREGISTER:
 901                 if (!vlan_id)
 902                         return;
 903                 mutex_lock(&bnx2fc_dev_lock);
 904                 list_for_each_entry_safe(interface, tmp, &if_list, list) {
 905                         if (interface->hba == hba &&
 906                             interface->vlan_id == (vlan_id & VLAN_VID_MASK))
 907                                 __bnx2fc_destroy(interface);
 908                 }
 909                 mutex_unlock(&bnx2fc_dev_lock);
 910
 911                 /* Ensure ALL destroy work has been completed before return */
 912                 flush_workqueue(bnx2fc_wq);
 913                 return;
 914
 915         default:
 916                 return;
 917         }
 918
 919         mutex_lock(&bnx2fc_dev_lock);
 920         list_for_each_entry(interface, &if_list, list) {
 921
 922                 if (interface->hba != hba)
 923                         continue;
 924
 925                 ctlr = bnx2fc_to_ctlr(interface);
 926                 lport = ctlr->lp;
 927                 BNX2FC_HBA_DBG(lport, "netevent handler - event=%s %ld\n",
 928                                 interface->netdev->name, event);
 929
 930                 fcoe_link_speed_update(lport);
 931
 932                 cdev = fcoe_ctlr_to_ctlr_dev(ctlr);
 933
 934                 if (link_possible && !bnx2fc_link_ok(lport)) {
 935                         switch (cdev->enabled) {
 936                         case FCOE_CTLR_DISABLED:
 937                                 pr_info("Link up while interface is disabled.\n");
 938                                 break;
 939                         case FCOE_CTLR_ENABLED:
 940                         case FCOE_CTLR_UNUSED:
 941                                 /* Reset max recv frame size to default */
 942                                 fc_set_mfs(lport, BNX2FC_MFS);
 943                                 /*
 944                                  * ctlr link up will only be handled during
 945                                  * enable to avoid sending discovery
 946                                  * solicitation on a stale vlan
 947                                  */
 948                                 if (interface->enabled)
 949                                         fcoe_ctlr_link_up(ctlr);
 950                         }
 951                 } else if (fcoe_ctlr_link_down(ctlr)) {
 952                         switch (cdev->enabled) {
 953                         case FCOE_CTLR_DISABLED:
 954                                 pr_info("Link down while interface is disabled.\n");
 955                                 break;
 956                         case FCOE_CTLR_ENABLED:
 957                         case FCOE_CTLR_UNUSED:
 958                                 mutex_lock(&lport->lp_mutex);
 959                                 list_for_each_entry(vport, &lport->vports, list)
 960                                         fc_host_port_type(vport->host) =
 961                                         FC_PORTTYPE_UNKNOWN;
 962                                 mutex_unlock(&lport->lp_mutex);
 963                                 fc_host_port_type(lport->host) =
 964                                         FC_PORTTYPE_UNKNOWN;
 965                                 per_cpu_ptr(lport->stats,
 966                                             get_cpu())->LinkFailureCount++;
 967                                 put_cpu();
 968                                 fcoe_clean_pending_queue(lport);
 969                                 wait_for_upload = 1;
 970                         }
 971                 }
 972         }
 973         mutex_unlock(&bnx2fc_dev_lock);
 974
 975         if (wait_for_upload) {
 976                 clear_bit(ADAPTER_STATE_READY, &hba->adapter_state);
 977                 init_waitqueue_head(&hba->shutdown_wait);
 978                 BNX2FC_MISC_DBG("indicate_netevent "
 979                                 "num_ofld_sess = %d\n",
 980                                 hba->num_ofld_sess);
 981                 hba->wait_for_link_down = 1;
 982                 wait_event_interruptible(hba->shutdown_wait,
 983                                          (hba->num_ofld_sess == 0));
 984                 BNX2FC_MISC_DBG("wakeup - num_ofld_sess = %d\n",
 985                                 hba->num_ofld_sess);
 986                 hba->wait_for_link_down = 0;
 987
 988                 if (signal_pending(current))
 989                         flush_signals(current);
 990         }
 991 }
 992
 993 static int bnx2fc_libfc_config(struct fc_lport *lport)
 994 {
 995
 996         /* Set the function pointers set by bnx2fc driver */
 997         memcpy(&lport->tt, &bnx2fc_libfc_fcn_templ,
 998                 sizeof(struct libfc_function_template));
 999         fc_elsct_init(lport);
1000         fc_exch_init(lport);
1001         fc_disc_init(lport);
1002         fc_disc_config(lport, lport);
1003         return 0;
1004 }
1005
1006 static int bnx2fc_em_config(struct fc_lport *lport, struct bnx2fc_hba *hba)
1007 {
1008         int fcoe_min_xid, fcoe_max_xid;
1009
1010         fcoe_min_xid = hba->max_xid + 1;
1011         if (nr_cpu_ids <= 2)
1012                 fcoe_max_xid = hba->max_xid + FCOE_XIDS_PER_CPU_OFFSET;
1013         else
1014                 fcoe_max_xid = hba->max_xid + FCOE_MAX_XID_OFFSET;
1015         if (!fc_exch_mgr_alloc(lport, FC_CLASS_3, fcoe_min_xid,
1016                                fcoe_max_xid, NULL)) {
1017                 printk(KERN_ERR PFX "em_config:fc_exch_mgr_alloc failed\n");
1018                 return -ENOMEM;
1019         }
1020
1021         return 0;
1022 }
1023
1024 static int bnx2fc_lport_config(struct fc_lport *lport)
1025 {
1026         lport->link_up = 0;
1027         lport->qfull = 0;
1028         lport->max_retry_count = BNX2FC_MAX_RETRY_CNT;
1029         lport->max_rport_retry_count = BNX2FC_MAX_RPORT_RETRY_CNT;
1030         lport->e_d_tov = 2 * 1000;
1031         lport->r_a_tov = 10 * 1000;
1032
1033         lport->service_params = (FCP_SPPF_INIT_FCN | FCP_SPPF_RD_XRDY_DIS |
1034                                 FCP_SPPF_RETRY | FCP_SPPF_CONF_COMPL);
1035         lport->does_npiv = 1;
1036
1037         memset(&lport->rnid_gen, 0, sizeof(struct fc_els_rnid_gen));
1038         lport->rnid_gen.rnid_atype = BNX2FC_RNID_HBA;
1039
1040         /* alloc stats structure */
1041         if (fc_lport_init_stats(lport))
1042                 return -ENOMEM;
1043
1044         /* Finish fc_lport configuration */
1045         fc_lport_config(lport);
1046
1047         return 0;
1048 }
1049
1050 /**
1051  * bnx2fc_fip_recv - handle a received FIP frame.
1052  *
1053  * @skb: the received skb
1054  * @dev: associated &net_device
1055  * @ptype: the &packet_type structure which was used to register this handler.
1056  * @orig_dev: original receive &net_device, in case @ dev is a bond.
1057  *
1058  * Returns: 0 for success
1059  */
1060 static int bnx2fc_fip_recv(struct sk_buff *skb, struct net_device *dev,
1061                            struct packet_type *ptype,
1062                            struct net_device *orig_dev)
1063 {
1064         struct bnx2fc_interface *interface;
1065         struct fcoe_ctlr *ctlr;
1066         interface = container_of(ptype, struct bnx2fc_interface,
1067                                  fip_packet_type);
1068         ctlr = bnx2fc_to_ctlr(interface);
1069         fcoe_ctlr_recv(ctlr, skb);
1070         return 0;
1071 }
1072
1073 /**
1074  * bnx2fc_update_src_mac - Update Ethernet MAC filters.
1075  *
1076  * @lport: The local port
1077  * @addr: Location of data to copy
1078  *
1079  * Remove any previously-set unicast MAC filter.
1080  * Add secondary FCoE MAC address filter for our OUI.
1081  */
1082 static void bnx2fc_update_src_mac(struct fc_lport *lport, u8 *addr)
1083 {
1084         struct fcoe_port *port = lport_priv(lport);
1085
1086         memcpy(port->data_src_addr, addr, ETH_ALEN);
1087 }
1088
1089 /**
1090  * bnx2fc_get_src_mac - return the ethernet source address for an lport
1091  *
1092  * @lport: libfc port
1093  */
1094 static u8 *bnx2fc_get_src_mac(struct fc_lport *lport)
1095 {
1096         struct fcoe_port *port;
1097
1098         port = (struct fcoe_port *)lport_priv(lport);
1099         return port->data_src_addr;
1100 }
1101
1102 /**
1103  * bnx2fc_fip_send - send an Ethernet-encapsulated FIP frame.
1104  *
1105  * @fip: FCoE controller.
1106  * @skb: FIP Packet.
1107  */
1108 static void bnx2fc_fip_send(struct fcoe_ctlr *fip, struct sk_buff *skb)
1109 {
1110         struct fip_header *fiph;
1111         struct ethhdr *eth_hdr;
1112         u16 op;
1113         u8 sub;
1114
1115         fiph = (struct fip_header *) ((void *)skb->data + 2 * ETH_ALEN + 2);
1116         eth_hdr = (struct ethhdr *)skb_mac_header(skb);
1117         op = ntohs(fiph->fip_op);
1118         sub = fiph->fip_subcode;
1119
1120         if (op == FIP_OP_CTRL && sub == FIP_SC_SOL && bnx2fc_log_fka)
1121                 BNX2FC_MISC_DBG("Sending FKA from %pM to %pM.\n",
1122                     eth_hdr->h_source, eth_hdr->h_dest);
1123
1124         skb->dev = bnx2fc_from_ctlr(fip)->netdev;
1125         dev_queue_xmit(skb);
1126 }
1127
1128 static int bnx2fc_vport_create(struct fc_vport *vport, bool disabled)
1129 {
1130         struct Scsi_Host *shost = vport_to_shost(vport);
1131         struct fc_lport *n_port = shost_priv(shost);
1132         struct fcoe_port *port = lport_priv(n_port);
1133         struct bnx2fc_interface *interface = port->priv;
1134         struct net_device *netdev = interface->netdev;
1135         struct fc_lport *vn_port;
1136         int rc;
1137         char buf[32];
1138
1139         rc = fcoe_validate_vport_create(vport);
1140         if (rc) {
1141                 fcoe_wwn_to_str(vport->port_name, buf, sizeof(buf));
1142                 printk(KERN_ERR PFX "Failed to create vport, "
1143                        "WWPN (0x%s) already exists\n",
1144                        buf);
1145                 return rc;
1146         }
1147
1148         if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &interface->hba->flags)) {
1149                 printk(KERN_ERR PFX "vn ports cannot be created on"
1150                         "this interface\n");
1151                 return -EIO;
1152         }
1153         rtnl_lock();
1154         mutex_lock(&bnx2fc_dev_lock);
1155         vn_port = bnx2fc_if_create(interface, &vport->dev, 1);
1156         mutex_unlock(&bnx2fc_dev_lock);
1157         rtnl_unlock();
1158
1159         if (!vn_port) {
1160                 printk(KERN_ERR PFX "bnx2fc_vport_create (%s) failed\n",
1161                         netdev->name);
1162                 return -EIO;
1163         }
1164
1165         if (bnx2fc_devloss_tmo)
1166                 fc_host_dev_loss_tmo(vn_port->host) = bnx2fc_devloss_tmo;
1167
1168         if (disabled) {
1169                 fc_vport_set_state(vport, FC_VPORT_DISABLED);
1170         } else {
1171                 vn_port->boot_time = jiffies;
1172                 fc_lport_init(vn_port);
1173                 fc_fabric_login(vn_port);
1174                 fc_vport_setlink(vn_port);
1175         }
1176         return 0;
1177 }
1178
1179 static void bnx2fc_free_vport(struct bnx2fc_hba *hba, struct fc_lport *lport)
1180 {
1181         struct bnx2fc_lport *blport, *tmp;
1182
1183         spin_lock_bh(&hba->hba_lock);
1184         list_for_each_entry_safe(blport, tmp, &hba->vports, list) {
1185                 if (blport->lport == lport) {
1186                         list_del(&blport->list);
1187                         kfree(blport);
1188                 }
1189         }
1190         spin_unlock_bh(&hba->hba_lock);
1191 }
1192
1193 static int bnx2fc_vport_destroy(struct fc_vport *vport)
1194 {
1195         struct Scsi_Host *shost = vport_to_shost(vport);
1196         struct fc_lport *n_port = shost_priv(shost);
1197         struct fc_lport *vn_port = vport->dd_data;
1198         struct fcoe_port *port = lport_priv(vn_port);
1199         struct bnx2fc_interface *interface = port->priv;
1200         struct fc_lport *v_port;
1201         bool found = false;
1202
1203         mutex_lock(&n_port->lp_mutex);
1204         list_for_each_entry(v_port, &n_port->vports, list)
1205                 if (v_port->vport == vport) {
1206                         found = true;
1207                         break;
1208                 }
1209
1210         if (!found) {
1211                 mutex_unlock(&n_port->lp_mutex);
1212                 return -ENOENT;
1213         }
1214         list_del(&vn_port->list);
1215         mutex_unlock(&n_port->lp_mutex);
1216         bnx2fc_free_vport(interface->hba, port->lport);
1217         bnx2fc_port_shutdown(port->lport);
1218         bnx2fc_interface_put(interface);
1219         queue_work(bnx2fc_wq, &port->destroy_work);
1220         return 0;
1221 }
1222
1223 static int bnx2fc_vport_disable(struct fc_vport *vport, bool disable)
1224 {
1225         struct fc_lport *lport = vport->dd_data;
1226
1227         if (disable) {
1228                 fc_vport_set_state(vport, FC_VPORT_DISABLED);
1229                 fc_fabric_logoff(lport);
1230         } else {
1231                 lport->boot_time = jiffies;
1232                 fc_fabric_login(lport);
1233                 fc_vport_setlink(lport);
1234         }
1235         return 0;
1236 }
1237
1238
1239 static int bnx2fc_interface_setup(struct bnx2fc_interface *interface)
1240 {
1241         struct net_device *netdev = interface->netdev;
1242         struct net_device *physdev = interface->hba->phys_dev;
1243         struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface);
1244         struct netdev_hw_addr *ha;
1245         int sel_san_mac = 0;
1246
1247         /* setup Source MAC Address */
1248         rcu_read_lock();
1249         for_each_dev_addr(physdev, ha) {
1250                 BNX2FC_MISC_DBG("net_config: ha->type = %d, fip_mac = ",
1251                                 ha->type);
1252                 printk(KERN_INFO "%2x:%2x:%2x:%2x:%2x:%2x\n", ha->addr[0],
1253                                 ha->addr[1], ha->addr[2], ha->addr[3],
1254                                 ha->addr[4], ha->addr[5]);
1255
1256                 if ((ha->type == NETDEV_HW_ADDR_T_SAN) &&
1257                     (is_valid_ether_addr(ha->addr))) {
1258                         memcpy(ctlr->ctl_src_addr, ha->addr,
1259                                ETH_ALEN);
1260                         sel_san_mac = 1;
1261                         BNX2FC_MISC_DBG("Found SAN MAC\n");
1262                 }
1263         }
1264         rcu_read_unlock();
1265
1266         if (!sel_san_mac)
1267                 return -ENODEV;
1268
1269         interface->fip_packet_type.func = bnx2fc_fip_recv;
1270         interface->fip_packet_type.type = htons(ETH_P_FIP);
1271         interface->fip_packet_type.dev = netdev;
1272         dev_add_pack(&interface->fip_packet_type);
1273
1274         interface->fcoe_packet_type.func = bnx2fc_rcv;
1275         interface->fcoe_packet_type.type = __constant_htons(ETH_P_FCOE);
1276         interface->fcoe_packet_type.dev = netdev;
1277         dev_add_pack(&interface->fcoe_packet_type);
1278
1279         return 0;
1280 }
1281
1282 static int bnx2fc_attach_transport(void)
1283 {
1284         bnx2fc_transport_template =
1285                 fc_attach_transport(&bnx2fc_transport_function);
1286
1287         if (bnx2fc_transport_template == NULL) {
1288                 printk(KERN_ERR PFX "Failed to attach FC transport\n");
1289                 return -ENODEV;
1290         }
1291
1292         bnx2fc_vport_xport_template =
1293                 fc_attach_transport(&bnx2fc_vport_xport_function);
1294         if (bnx2fc_vport_xport_template == NULL) {
1295                 printk(KERN_ERR PFX
1296                        "Failed to attach FC transport for vport\n");
1297                 fc_release_transport(bnx2fc_transport_template);
1298                 bnx2fc_transport_template = NULL;
1299                 return -ENODEV;
1300         }
1301         return 0;
1302 }
1303 static void bnx2fc_release_transport(void)
1304 {
1305         fc_release_transport(bnx2fc_transport_template);
1306         fc_release_transport(bnx2fc_vport_xport_template);
1307         bnx2fc_transport_template = NULL;
1308         bnx2fc_vport_xport_template = NULL;
1309 }
1310
1311 static void bnx2fc_interface_release(struct kref *kref)
1312 {
1313         struct fcoe_ctlr_device *ctlr_dev;
1314         struct bnx2fc_interface *interface;
1315         struct fcoe_ctlr *ctlr;
1316         struct net_device *netdev;
1317
1318         interface = container_of(kref, struct bnx2fc_interface, kref);
1319         BNX2FC_MISC_DBG("Interface is being released\n");
1320
1321         ctlr = bnx2fc_to_ctlr(interface);
1322         ctlr_dev = fcoe_ctlr_to_ctlr_dev(ctlr);
1323         netdev = interface->netdev;
1324
1325         /* tear-down FIP controller */
1326         if (test_and_clear_bit(BNX2FC_CTLR_INIT_DONE, &interface->if_flags))
1327                 fcoe_ctlr_destroy(ctlr);
1328
1329         fcoe_ctlr_device_delete(ctlr_dev);
1330
1331         dev_put(netdev);
1332         module_put(THIS_MODULE);
1333 }
1334
1335 static inline void bnx2fc_interface_get(struct bnx2fc_interface *interface)
1336 {
1337         kref_get(&interface->kref);
1338 }
1339
1340 static inline void bnx2fc_interface_put(struct bnx2fc_interface *interface)
1341 {
1342         kref_put(&interface->kref, bnx2fc_interface_release);
1343 }
1344 static void bnx2fc_hba_destroy(struct bnx2fc_hba *hba)
1345 {
1346         /* Free the command manager */
1347         if (hba->cmd_mgr) {
1348                 bnx2fc_cmd_mgr_free(hba->cmd_mgr);
1349                 hba->cmd_mgr = NULL;
1350         }
1351         kfree(hba->tgt_ofld_list);
1352         bnx2fc_unbind_pcidev(hba);
1353         kfree(hba);
1354 }
1355
1356 /**
1357  * bnx2fc_hba_create - create a new bnx2fc hba
1358  *
1359  * @cnic:       pointer to cnic device
1360  *
1361  * Creates a new FCoE hba on the given device.
1362  *
1363  */
1364 static struct bnx2fc_hba *bnx2fc_hba_create(struct cnic_dev *cnic)
1365 {
1366         struct bnx2fc_hba *hba;
1367         struct fcoe_capabilities *fcoe_cap;
1368         int rc;
1369
1370         hba = kzalloc(sizeof(*hba), GFP_KERNEL);
1371         if (!hba) {
1372                 printk(KERN_ERR PFX "Unable to allocate hba structure\n");
1373                 return NULL;
1374         }
1375         spin_lock_init(&hba->hba_lock);
1376         mutex_init(&hba->hba_mutex);
1377         mutex_init(&hba->hba_stats_mutex);
1378
1379         hba->cnic = cnic;
1380
1381         hba->max_tasks = cnic->max_fcoe_exchanges;
1382         hba->elstm_xids = (hba->max_tasks / 2);
1383         hba->max_outstanding_cmds = hba->elstm_xids;
1384         hba->max_xid = (hba->max_tasks - 1);
1385
1386         rc = bnx2fc_bind_pcidev(hba);
1387         if (rc) {
1388                 printk(KERN_ERR PFX "create_adapter:  bind error\n");
1389                 goto bind_err;
1390         }
1391         hba->phys_dev = cnic->netdev;
1392         hba->next_conn_id = 0;
1393
1394         hba->tgt_ofld_list =
1395                 kcalloc(BNX2FC_NUM_MAX_SESS, sizeof(struct bnx2fc_rport *),
1396                         GFP_KERNEL);
1397         if (!hba->tgt_ofld_list) {
1398                 printk(KERN_ERR PFX "Unable to allocate tgt offload list\n");
1399                 goto tgtofld_err;
1400         }
1401
1402         hba->num_ofld_sess = 0;
1403
1404         hba->cmd_mgr = bnx2fc_cmd_mgr_alloc(hba);
1405         if (!hba->cmd_mgr) {
1406                 printk(KERN_ERR PFX "em_config:bnx2fc_cmd_mgr_alloc failed\n");
1407                 goto cmgr_err;
1408         }
1409         fcoe_cap = &hba->fcoe_cap;
1410
1411         fcoe_cap->capability1 = BNX2FC_TM_MAX_SQES <<
1412                                         FCOE_IOS_PER_CONNECTION_SHIFT;
1413         fcoe_cap->capability1 |= BNX2FC_NUM_MAX_SESS <<
1414                                         FCOE_LOGINS_PER_PORT_SHIFT;
1415         fcoe_cap->capability2 = hba->max_outstanding_cmds <<
1416                                         FCOE_NUMBER_OF_EXCHANGES_SHIFT;
1417         fcoe_cap->capability2 |= BNX2FC_MAX_NPIV <<
1418                                         FCOE_NPIV_WWN_PER_PORT_SHIFT;
1419         fcoe_cap->capability3 = BNX2FC_NUM_MAX_SESS <<
1420                                         FCOE_TARGETS_SUPPORTED_SHIFT;
1421         fcoe_cap->capability3 |= hba->max_outstanding_cmds <<
1422                                         FCOE_OUTSTANDING_COMMANDS_SHIFT;
1423         fcoe_cap->capability4 = FCOE_CAPABILITY4_STATEFUL;
1424
1425         init_waitqueue_head(&hba->shutdown_wait);
1426         init_waitqueue_head(&hba->destroy_wait);
1427         INIT_LIST_HEAD(&hba->vports);
1428
1429         return hba;
1430
1431 cmgr_err:
1432         kfree(hba->tgt_ofld_list);
1433 tgtofld_err:
1434         bnx2fc_unbind_pcidev(hba);
1435 bind_err:
1436         kfree(hba);
1437         return NULL;
1438 }
1439
1440 static struct bnx2fc_interface *
1441 bnx2fc_interface_create(struct bnx2fc_hba *hba,
1442                         struct net_device *netdev,
1443                         enum fip_mode fip_mode)
1444 {
1445         struct fcoe_ctlr_device *ctlr_dev;
1446         struct bnx2fc_interface *interface;
1447         struct fcoe_ctlr *ctlr;
1448         int size;
1449         int rc = 0;
1450
1451         size = (sizeof(*interface) + sizeof(struct fcoe_ctlr));
1452         ctlr_dev = fcoe_ctlr_device_add(&netdev->dev, &bnx2fc_fcoe_sysfs_templ,
1453                                          size);
1454         if (!ctlr_dev) {
1455                 printk(KERN_ERR PFX "Unable to allocate interface structure\n");
1456                 return NULL;
1457         }
1458         ctlr = fcoe_ctlr_device_priv(ctlr_dev);
1459         ctlr->cdev = ctlr_dev;
1460         interface = fcoe_ctlr_priv(ctlr);
1461         dev_hold(netdev);
1462         kref_init(&interface->kref);
1463         interface->hba = hba;
1464         interface->netdev = netdev;
1465
1466         /* Initialize FIP */
1467         fcoe_ctlr_init(ctlr, fip_mode);
1468         ctlr->send = bnx2fc_fip_send;
1469         ctlr->update_mac = bnx2fc_update_src_mac;
1470         ctlr->get_src_addr = bnx2fc_get_src_mac;
1471         set_bit(BNX2FC_CTLR_INIT_DONE, &interface->if_flags);
1472
1473         rc = bnx2fc_interface_setup(interface);
1474         if (!rc)
1475                 return interface;
1476
1477         fcoe_ctlr_destroy(ctlr);
1478         dev_put(netdev);
1479         fcoe_ctlr_device_delete(ctlr_dev);
1480         return NULL;
1481 }
1482
1483 /**
1484  * bnx2fc_if_create - Create FCoE instance on a given interface
1485  *
1486  * @interface:  FCoE interface to create a local port on
1487  * @parent:     Device pointer to be the parent in sysfs for the SCSI host
1488  * @npiv:       Indicates if the port is vport or not
1489  *
1490  * Creates a fc_lport instance and a Scsi_Host instance and configure them.
1491  *
1492  * Returns:     Allocated fc_lport or an error pointer
1493  */
1494 static struct fc_lport *bnx2fc_if_create(struct bnx2fc_interface *interface,
1495                                   struct device *parent, int npiv)
1496 {
1497         struct fcoe_ctlr        *ctlr = bnx2fc_to_ctlr(interface);
1498         struct fc_lport         *lport, *n_port;
1499         struct fcoe_port        *port;
1500         struct Scsi_Host        *shost;
1501         struct fc_vport         *vport = dev_to_vport(parent);
1502         struct bnx2fc_lport     *blport;
1503         struct bnx2fc_hba       *hba = interface->hba;
1504         int                     rc = 0;
1505
1506         blport = kzalloc(sizeof(struct bnx2fc_lport), GFP_KERNEL);
1507         if (!blport) {
1508                 BNX2FC_HBA_DBG(ctlr->lp, "Unable to alloc blport\n");
1509                 return NULL;
1510         }
1511
1512         /* Allocate Scsi_Host structure */
1513         bnx2fc_shost_template.can_queue = hba->max_outstanding_cmds;
1514         if (!npiv)
1515                 lport = libfc_host_alloc(&bnx2fc_shost_template, sizeof(*port));
1516         else
1517                 lport = libfc_vport_create(vport, sizeof(*port));
1518
1519         if (!lport) {
1520                 printk(KERN_ERR PFX "could not allocate scsi host structure\n");
1521                 goto free_blport;
1522         }
1523         shost = lport->host;
1524         port = lport_priv(lport);
1525         port->lport = lport;
1526         port->priv = interface;
1527         port->get_netdev = bnx2fc_netdev;
1528         INIT_WORK(&port->destroy_work, bnx2fc_destroy_work);
1529
1530         /* Configure fcoe_port */
1531         rc = bnx2fc_lport_config(lport);
1532         if (rc)
1533                 goto lp_config_err;
1534
1535         if (npiv) {
1536                 printk(KERN_ERR PFX "Setting vport names, 0x%llX 0x%llX\n",
1537                         vport->node_name, vport->port_name);
1538                 fc_set_wwnn(lport, vport->node_name);
1539                 fc_set_wwpn(lport, vport->port_name);
1540         }
1541         /* Configure netdev and networking properties of the lport */
1542         rc = bnx2fc_net_config(lport, interface->netdev);
1543         if (rc) {
1544                 printk(KERN_ERR PFX "Error on bnx2fc_net_config\n");
1545                 goto lp_config_err;
1546         }
1547
1548         rc = bnx2fc_shost_config(lport, parent);
1549         if (rc) {
1550                 printk(KERN_ERR PFX "Couldn't configure shost for %s\n",
1551                         interface->netdev->name);
1552                 goto lp_config_err;
1553         }
1554
1555         /* Initialize the libfc library */
1556         rc = bnx2fc_libfc_config(lport);
1557         if (rc) {
1558                 printk(KERN_ERR PFX "Couldn't configure libfc\n");
1559                 goto shost_err;
1560         }
1561         fc_host_port_type(lport->host) = FC_PORTTYPE_UNKNOWN;
1562
1563         if (bnx2fc_devloss_tmo)
1564                 fc_host_dev_loss_tmo(shost) = bnx2fc_devloss_tmo;
1565
1566         /* Allocate exchange manager */
1567         if (!npiv)
1568                 rc = bnx2fc_em_config(lport, hba);
1569         else {
1570                 shost = vport_to_shost(vport);
1571                 n_port = shost_priv(shost);
1572                 rc = fc_exch_mgr_list_clone(n_port, lport);
1573         }
1574
1575         if (rc) {
1576                 printk(KERN_ERR PFX "Error on bnx2fc_em_config\n");
1577                 goto shost_err;
1578         }
1579
1580         bnx2fc_interface_get(interface);
1581
1582         spin_lock_bh(&hba->hba_lock);
1583         blport->lport = lport;
1584         list_add_tail(&blport->list, &hba->vports);
1585         spin_unlock_bh(&hba->hba_lock);
1586
1587         return lport;
1588
1589 shost_err:
1590         scsi_remove_host(shost);
1591 lp_config_err:
1592         scsi_host_put(lport->host);
1593 free_blport:
1594         kfree(blport);
1595         return NULL;
1596 }
1597
1598 static void bnx2fc_net_cleanup(struct bnx2fc_interface *interface)
1599 {
1600         /* Dont listen for Ethernet packets anymore */
1601         __dev_remove_pack(&interface->fcoe_packet_type);
1602         __dev_remove_pack(&interface->fip_packet_type);
1603         synchronize_net();
1604 }
1605
1606 static void bnx2fc_interface_cleanup(struct bnx2fc_interface *interface)
1607 {
1608         struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface);
1609         struct fc_lport *lport = ctlr->lp;
1610         struct fcoe_port *port = lport_priv(lport);
1611         struct bnx2fc_hba *hba = interface->hba;
1612
1613         /* Stop the transmit retry timer */
1614         del_timer_sync(&port->timer);
1615
1616         /* Free existing transmit skbs */
1617         fcoe_clean_pending_queue(lport);
1618
1619         bnx2fc_net_cleanup(interface);
1620
1621         bnx2fc_free_vport(hba, lport);
1622 }
1623
1624 static void bnx2fc_if_destroy(struct fc_lport *lport)
1625 {
1626
1627         /* Free queued packets for the receive thread */
1628         bnx2fc_clean_rx_queue(lport);
1629
1630         /* Detach from scsi-ml */
1631         fc_remove_host(lport->host);
1632         scsi_remove_host(lport->host);
1633
1634         /*
1635          * Note that only the physical lport will have the exchange manager.
1636          * for vports, this function is NOP
1637          */
1638         fc_exch_mgr_free(lport);
1639
1640         /* Free memory used by statistical counters */
1641         fc_lport_free_stats(lport);
1642
1643         /* Release Scsi_Host */
1644         scsi_host_put(lport->host);
1645 }
1646
1647 static void __bnx2fc_destroy(struct bnx2fc_interface *interface)
1648 {
1649         struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface);
1650         struct fc_lport *lport = ctlr->lp;
1651         struct fcoe_port *port = lport_priv(lport);
1652
1653         bnx2fc_interface_cleanup(interface);
1654         bnx2fc_stop(interface);
1655         list_del(&interface->list);
1656         bnx2fc_interface_put(interface);
1657         queue_work(bnx2fc_wq, &port->destroy_work);
1658 }
1659
1660 /**
1661  * bnx2fc_destroy - Destroy a bnx2fc FCoE interface
1662  *
1663  * @netdev: The net device that the FCoE interface is on
1664  *
1665  * Called from sysfs.
1666  *
1667  * Returns: 0 for success
1668  */
1669 static int bnx2fc_destroy(struct net_device *netdev)
1670 {
1671         struct bnx2fc_interface *interface = NULL;
1672         struct workqueue_struct *timer_work_queue;
1673         struct fcoe_ctlr *ctlr;
1674         int rc = 0;
1675
1676         rtnl_lock();
1677         mutex_lock(&bnx2fc_dev_lock);
1678
1679         interface = bnx2fc_interface_lookup(netdev);
1680         ctlr = bnx2fc_to_ctlr(interface);
1681         if (!interface || !ctlr->lp) {
1682                 rc = -ENODEV;
1683                 printk(KERN_ERR PFX "bnx2fc_destroy: interface or lport not found\n");
1684                 goto netdev_err;
1685         }
1686
1687         timer_work_queue = interface->timer_work_queue;
1688         __bnx2fc_destroy(interface);
1689         destroy_workqueue(timer_work_queue);
1690
1691 netdev_err:
1692         mutex_unlock(&bnx2fc_dev_lock);
1693         rtnl_unlock();
1694         return rc;
1695 }
1696
1697 static void bnx2fc_destroy_work(struct work_struct *work)
1698 {
1699         struct fcoe_port *port;
1700         struct fc_lport *lport;
1701
1702         port = container_of(work, struct fcoe_port, destroy_work);
1703         lport = port->lport;
1704
1705         BNX2FC_HBA_DBG(lport, "Entered bnx2fc_destroy_work\n");
1706
1707         bnx2fc_if_destroy(lport);
1708 }
1709
1710 static void bnx2fc_unbind_adapter_devices(struct bnx2fc_hba *hba)
1711 {
1712         bnx2fc_free_fw_resc(hba);
1713         bnx2fc_free_task_ctx(hba);
1714 }
1715
1716 /**
1717  * bnx2fc_bind_adapter_devices - binds bnx2fc adapter with the associated
1718  *                      pci structure
1719  *
1720  * @hba:                Adapter instance
1721  */
1722 static int bnx2fc_bind_adapter_devices(struct bnx2fc_hba *hba)
1723 {
1724         if (bnx2fc_setup_task_ctx(hba))
1725                 goto mem_err;
1726
1727         if (bnx2fc_setup_fw_resc(hba))
1728                 goto mem_err;
1729
1730         return 0;
1731 mem_err:
1732         bnx2fc_unbind_adapter_devices(hba);
1733         return -ENOMEM;
1734 }
1735
1736 static int bnx2fc_bind_pcidev(struct bnx2fc_hba *hba)
1737 {
1738         struct cnic_dev *cnic;
1739         struct pci_dev *pdev;
1740
1741         if (!hba->cnic) {
1742                 printk(KERN_ERR PFX "cnic is NULL\n");
1743                 return -ENODEV;
1744         }
1745         cnic = hba->cnic;
1746         pdev = hba->pcidev = cnic->pcidev;
1747         if (!hba->pcidev)
1748                 return -ENODEV;
1749
1750         switch (pdev->device) {
1751         case PCI_DEVICE_ID_NX2_57710:
1752                 strncpy(hba->chip_num, "BCM57710", BCM_CHIP_LEN);
1753                 break;
1754         case PCI_DEVICE_ID_NX2_57711:
1755                 strncpy(hba->chip_num, "BCM57711", BCM_CHIP_LEN);
1756                 break;
1757         case PCI_DEVICE_ID_NX2_57712:
1758         case PCI_DEVICE_ID_NX2_57712_MF:
1759         case PCI_DEVICE_ID_NX2_57712_VF:
1760                 strncpy(hba->chip_num, "BCM57712", BCM_CHIP_LEN);
1761                 break;
1762         case PCI_DEVICE_ID_NX2_57800:
1763         case PCI_DEVICE_ID_NX2_57800_MF:
1764         case PCI_DEVICE_ID_NX2_57800_VF:
1765                 strncpy(hba->chip_num, "BCM57800", BCM_CHIP_LEN);
1766                 break;
1767         case PCI_DEVICE_ID_NX2_57810:
1768         case PCI_DEVICE_ID_NX2_57810_MF:
1769         case PCI_DEVICE_ID_NX2_57810_VF:
1770                 strncpy(hba->chip_num, "BCM57810", BCM_CHIP_LEN);
1771                 break;
1772         case PCI_DEVICE_ID_NX2_57840:
1773         case PCI_DEVICE_ID_NX2_57840_MF:
1774         case PCI_DEVICE_ID_NX2_57840_VF:
1775         case PCI_DEVICE_ID_NX2_57840_2_20:
1776         case PCI_DEVICE_ID_NX2_57840_4_10:
1777                 strncpy(hba->chip_num, "BCM57840", BCM_CHIP_LEN);
1778                 break;
1779         default:
1780                 pr_err(PFX "Unknown device id 0x%x\n", pdev->device);
1781                 break;
1782         }
1783         pci_dev_get(hba->pcidev);
1784         return 0;
1785 }
1786
1787 static void bnx2fc_unbind_pcidev(struct bnx2fc_hba *hba)
1788 {
1789         if (hba->pcidev) {
1790                 hba->chip_num[0] = '\0';
1791                 pci_dev_put(hba->pcidev);
1792         }
1793         hba->pcidev = NULL;
1794 }
1795
1796 /**
1797  * bnx2fc_ulp_get_stats - cnic callback to populate FCoE stats
1798  *
1799  * @handle:    transport handle pointing to adapter struture
1800  */
1801 static int bnx2fc_ulp_get_stats(void *handle)
1802 {
1803         struct bnx2fc_hba *hba = handle;
1804         struct cnic_dev *cnic;
1805         struct fcoe_stats_info *stats_addr;
1806
1807         if (!hba)
1808                 return -EINVAL;
1809
1810         cnic = hba->cnic;
1811         stats_addr = &cnic->stats_addr->fcoe_stat;
1812         if (!stats_addr)
1813                 return -EINVAL;
1814
1815         strncpy(stats_addr->version, BNX2FC_VERSION,
1816                 sizeof(stats_addr->version));
1817         stats_addr->txq_size = BNX2FC_SQ_WQES_MAX;
1818         stats_addr->rxq_size = BNX2FC_CQ_WQES_MAX;
1819
1820         return 0;
1821 }
1822
1823
1824 /**
1825  * bnx2fc_ulp_start - cnic callback to initialize & start adapter instance
1826  *
1827  * @handle:     transport handle pointing to adapter structure
1828  *
1829  * This function maps adapter structure to pcidev structure and initiates
1830  *      firmware handshake to enable/initialize on-chip FCoE components.
1831  *      This bnx2fc - cnic interface api callback is used after following
1832  *      conditions are met -
1833  *      a) underlying network interface is up (marked by event NETDEV_UP
1834  *              from netdev
1835  *      b) bnx2fc adatper structure is registered.
1836  */
1837 static void bnx2fc_ulp_start(void *handle)
1838 {
1839         struct bnx2fc_hba *hba = handle;
1840         struct bnx2fc_interface *interface;
1841         struct fcoe_ctlr *ctlr;
1842         struct fc_lport *lport;
1843
1844         mutex_lock(&bnx2fc_dev_lock);
1845
1846         if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags))
1847                 bnx2fc_fw_init(hba);
1848
1849         BNX2FC_MISC_DBG("bnx2fc started.\n");
1850
1851         list_for_each_entry(interface, &if_list, list) {
1852                 if (interface->hba == hba) {
1853                         ctlr = bnx2fc_to_ctlr(interface);
1854                         lport = ctlr->lp;
1855                         /* Kick off Fabric discovery*/
1856                         printk(KERN_ERR PFX "ulp_init: start discovery\n");
1857                         lport->tt.frame_send = bnx2fc_xmit;
1858                         bnx2fc_start_disc(interface);
1859                 }
1860         }
1861
1862         mutex_unlock(&bnx2fc_dev_lock);
1863 }
1864
1865 static void bnx2fc_port_shutdown(struct fc_lport *lport)
1866 {
1867         BNX2FC_MISC_DBG("Entered %s\n", __func__);
1868         fc_fabric_logoff(lport);
1869         fc_lport_destroy(lport);
1870 }
1871
1872 static void bnx2fc_stop(struct bnx2fc_interface *interface)
1873 {
1874         struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface);
1875         struct fc_lport *lport;
1876         struct fc_lport *vport;
1877
1878         if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &interface->hba->flags))
1879                 return;
1880
1881         lport = ctlr->lp;
1882         bnx2fc_port_shutdown(lport);
1883
1884         mutex_lock(&lport->lp_mutex);
1885         list_for_each_entry(vport, &lport->vports, list)
1886                 fc_host_port_type(vport->host) =
1887                                         FC_PORTTYPE_UNKNOWN;
1888         mutex_unlock(&lport->lp_mutex);
1889         fc_host_port_type(lport->host) = FC_PORTTYPE_UNKNOWN;
1890         fcoe_ctlr_link_down(ctlr);
1891         fcoe_clean_pending_queue(lport);
1892 }
1893
1894 static int bnx2fc_fw_init(struct bnx2fc_hba *hba)
1895 {
1896 #define BNX2FC_INIT_POLL_TIME           (1000 / HZ)
1897         int rc = -1;
1898         int i = HZ;
1899
1900         rc = bnx2fc_bind_adapter_devices(hba);
1901         if (rc) {
1902                 printk(KERN_ALERT PFX
1903                         "bnx2fc_bind_adapter_devices failed - rc = %d\n", rc);
1904                 goto err_out;
1905         }
1906
1907         rc = bnx2fc_send_fw_fcoe_init_msg(hba);
1908         if (rc) {
1909                 printk(KERN_ALERT PFX
1910                         "bnx2fc_send_fw_fcoe_init_msg failed - rc = %d\n", rc);
1911                 goto err_unbind;
1912         }
1913
1914         /*
1915          * Wait until the adapter init message is complete, and adapter
1916          * state is UP.
1917          */
1918         while (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state) && i--)
1919                 msleep(BNX2FC_INIT_POLL_TIME);
1920
1921         if (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state)) {
1922                 printk(KERN_ERR PFX "bnx2fc_start: %s failed to initialize.  "
1923                                 "Ignoring...\n",
1924                                 hba->cnic->netdev->name);
1925                 rc = -1;
1926                 goto err_unbind;
1927         }
1928
1929
1930         set_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags);
1931         return 0;
1932
1933 err_unbind:
1934         bnx2fc_unbind_adapter_devices(hba);
1935 err_out:
1936         return rc;
1937 }
1938
1939 static void bnx2fc_fw_destroy(struct bnx2fc_hba *hba)
1940 {
1941         if (test_and_clear_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags)) {
1942                 if (bnx2fc_send_fw_fcoe_destroy_msg(hba) == 0) {
1943                         timer_setup(&hba->destroy_timer, bnx2fc_destroy_timer,
1944                                     0);
1945                         hba->destroy_timer.expires = BNX2FC_FW_TIMEOUT +
1946                                                                 jiffies;
1947                         add_timer(&hba->destroy_timer);
1948                         wait_event_interruptible(hba->destroy_wait,
1949                                         test_bit(BNX2FC_FLAG_DESTROY_CMPL,
1950                                                  &hba->flags));
1951                         clear_bit(BNX2FC_FLAG_DESTROY_CMPL, &hba->flags);
1952                         /* This should never happen */
1953                         if (signal_pending(current))
1954                                 flush_signals(current);
1955
1956                         del_timer_sync(&hba->destroy_timer);
1957                 }
1958                 bnx2fc_unbind_adapter_devices(hba);
1959         }
1960 }
1961
1962 /**
1963  * bnx2fc_ulp_stop - cnic callback to shutdown adapter instance
1964  *
1965  * @handle:     transport handle pointing to adapter structure
1966  *
1967  * Driver checks if adapter is already in shutdown mode, if not start
1968  *      the shutdown process.
1969  */
1970 static void bnx2fc_ulp_stop(void *handle)
1971 {
1972         struct bnx2fc_hba *hba = handle;
1973         struct bnx2fc_interface *interface;
1974
1975         printk(KERN_ERR "ULP_STOP\n");
1976
1977         mutex_lock(&bnx2fc_dev_lock);
1978         if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags))
1979                 goto exit;
1980         list_for_each_entry(interface, &if_list, list) {
1981                 if (interface->hba == hba)
1982                         bnx2fc_stop(interface);
1983         }
1984         BUG_ON(hba->num_ofld_sess != 0);
1985
1986         mutex_lock(&hba->hba_mutex);
1987         clear_bit(ADAPTER_STATE_UP, &hba->adapter_state);
1988         clear_bit(ADAPTER_STATE_GOING_DOWN,
1989                   &hba->adapter_state);
1990
1991         clear_bit(ADAPTER_STATE_READY, &hba->adapter_state);
1992         mutex_unlock(&hba->hba_mutex);
1993
1994         bnx2fc_fw_destroy(hba);
1995 exit:
1996         mutex_unlock(&bnx2fc_dev_lock);
1997 }
1998
1999 static void bnx2fc_start_disc(struct bnx2fc_interface *interface)
2000 {
2001         struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface);
2002         struct fc_lport *lport;
2003         int wait_cnt = 0;
2004
2005         BNX2FC_MISC_DBG("Entered %s\n", __func__);
2006         /* Kick off FIP/FLOGI */
2007         if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &interface->hba->flags)) {
2008                 printk(KERN_ERR PFX "Init not done yet\n");
2009                 return;
2010         }
2011
2012         lport = ctlr->lp;
2013         BNX2FC_HBA_DBG(lport, "calling fc_fabric_login\n");
2014
2015         if (!bnx2fc_link_ok(lport) && interface->enabled) {
2016                 BNX2FC_HBA_DBG(lport, "ctlr_link_up\n");
2017                 fcoe_ctlr_link_up(ctlr);
2018                 fc_host_port_type(lport->host) = FC_PORTTYPE_NPORT;
2019                 set_bit(ADAPTER_STATE_READY, &interface->hba->adapter_state);
2020         }
2021
2022         /* wait for the FCF to be selected before issuing FLOGI */
2023         while (!ctlr->sel_fcf) {
2024                 msleep(250);
2025                 /* give up after 3 secs */
2026                 if (++wait_cnt > 12)
2027                         break;
2028         }
2029
2030         /* Reset max receive frame size to default */
2031         if (fc_set_mfs(lport, BNX2FC_MFS))
2032                 return;
2033
2034         fc_lport_init(lport);
2035         fc_fabric_login(lport);
2036 }
2037
2038
2039 /**
2040  * bnx2fc_ulp_init - Initialize an adapter instance
2041  *
2042  * @dev :       cnic device handle
2043  * Called from cnic_register_driver() context to initialize all
2044  *      enumerated cnic devices. This routine allocates adapter structure
2045  *      and other device specific resources.
2046  */
2047 static void bnx2fc_ulp_init(struct cnic_dev *dev)
2048 {
2049         struct bnx2fc_hba *hba;
2050         int rc = 0;
2051
2052         BNX2FC_MISC_DBG("Entered %s\n", __func__);
2053         /* bnx2fc works only when bnx2x is loaded */
2054         if (!test_bit(CNIC_F_BNX2X_CLASS, &dev->flags) ||
2055             (dev->max_fcoe_conn == 0)) {
2056                 printk(KERN_ERR PFX "bnx2fc FCoE not supported on %s,"
2057                                     " flags: %lx fcoe_conn: %d\n",
2058                         dev->netdev->name, dev->flags, dev->max_fcoe_conn);
2059                 return;
2060         }
2061
2062         hba = bnx2fc_hba_create(dev);
2063         if (!hba) {
2064                 printk(KERN_ERR PFX "hba initialization failed\n");
2065                 return;
2066         }
2067
2068         pr_info(PFX "FCoE initialized for %s.\n", dev->netdev->name);
2069
2070         /* Add HBA to the adapter list */
2071         mutex_lock(&bnx2fc_dev_lock);
2072         list_add_tail(&hba->list, &adapter_list);
2073         adapter_count++;
2074         mutex_unlock(&bnx2fc_dev_lock);
2075
2076         dev->fcoe_cap = &hba->fcoe_cap;
2077         clear_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic);
2078         rc = dev->register_device(dev, CNIC_ULP_FCOE,
2079                                                 (void *) hba);
2080         if (rc)
2081                 printk(KERN_ERR PFX "register_device failed, rc = %d\n", rc);
2082         else
2083                 set_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic);
2084 }
2085
2086 /* Assumes rtnl_lock and the bnx2fc_dev_lock are already taken */
2087 static int __bnx2fc_disable(struct fcoe_ctlr *ctlr)
2088 {
2089         struct bnx2fc_interface *interface = fcoe_ctlr_priv(ctlr);
2090
2091         if (interface->enabled == true) {
2092                 if (!ctlr->lp) {
2093                         pr_err(PFX "__bnx2fc_disable: lport not found\n");
2094                         return -ENODEV;
2095                 } else {
2096                         interface->enabled = false;
2097                         fcoe_ctlr_link_down(ctlr);
2098                         fcoe_clean_pending_queue(ctlr->lp);
2099                 }
2100         }
2101         return 0;
2102 }
2103
2104 /*
2105  * Deperecated: Use bnx2fc_enabled()
2106  */
2107 static int bnx2fc_disable(struct net_device *netdev)
2108 {
2109         struct bnx2fc_interface *interface;
2110         struct fcoe_ctlr *ctlr;
2111         int rc = 0;
2112
2113         rtnl_lock();
2114         mutex_lock(&bnx2fc_dev_lock);
2115
2116         interface = bnx2fc_interface_lookup(netdev);
2117         ctlr = bnx2fc_to_ctlr(interface);
2118
2119         if (!interface) {
2120                 rc = -ENODEV;
2121                 pr_err(PFX "bnx2fc_disable: interface not found\n");
2122         } else {
2123                 rc = __bnx2fc_disable(ctlr);
2124         }
2125         mutex_unlock(&bnx2fc_dev_lock);
2126         rtnl_unlock();
2127         return rc;
2128 }
2129
2130 static uint bnx2fc_npiv_create_vports(struct fc_lport *lport,
2131                                       struct cnic_fc_npiv_tbl *npiv_tbl)
2132 {
2133         struct fc_vport_identifiers vpid;
2134         uint i, created = 0;
2135         u64 wwnn = 0;
2136         char wwpn_str[32];
2137         char wwnn_str[32];
2138
2139         if (npiv_tbl->count > MAX_NPIV_ENTRIES) {
2140                 BNX2FC_HBA_DBG(lport, "Exceeded count max of npiv table\n");
2141                 goto done;
2142         }
2143
2144         /* Sanity check the first entry to make sure it's not 0 */
2145         if (wwn_to_u64(npiv_tbl->wwnn[0]) == 0 &&
2146             wwn_to_u64(npiv_tbl->wwpn[0]) == 0) {
2147                 BNX2FC_HBA_DBG(lport, "First NPIV table entries invalid.\n");
2148                 goto done;
2149         }
2150
2151         vpid.roles = FC_PORT_ROLE_FCP_INITIATOR;
2152         vpid.vport_type = FC_PORTTYPE_NPIV;
2153         vpid.disable = false;
2154
2155         for (i = 0; i < npiv_tbl->count; i++) {
2156                 wwnn = wwn_to_u64(npiv_tbl->wwnn[i]);
2157                 if (wwnn == 0) {
2158                         /*
2159                          * If we get a 0 element from for the WWNN then assume
2160                          * the WWNN should be the same as the physical port.
2161                          */
2162                         wwnn = lport->wwnn;
2163                 }
2164                 vpid.node_name = wwnn;
2165                 vpid.port_name = wwn_to_u64(npiv_tbl->wwpn[i]);
2166                 scnprintf(vpid.symbolic_name, sizeof(vpid.symbolic_name),
2167                     "NPIV[%u]:%016llx-%016llx",
2168                     created, vpid.port_name, vpid.node_name);
2169                 fcoe_wwn_to_str(vpid.node_name, wwnn_str, sizeof(wwnn_str));
2170                 fcoe_wwn_to_str(vpid.port_name, wwpn_str, sizeof(wwpn_str));
2171                 BNX2FC_HBA_DBG(lport, "Creating vport %s:%s.\n", wwnn_str,
2172                     wwpn_str);
2173                 if (fc_vport_create(lport->host, 0, &vpid))
2174                         created++;
2175                 else
2176                         BNX2FC_HBA_DBG(lport, "Failed to create vport\n");
2177         }
2178 done:
2179         return created;
2180 }
2181
2182 static int __bnx2fc_enable(struct fcoe_ctlr *ctlr)
2183 {
2184         struct bnx2fc_interface *interface = fcoe_ctlr_priv(ctlr);
2185         struct bnx2fc_hba *hba;
2186         struct cnic_fc_npiv_tbl *npiv_tbl;
2187         struct fc_lport *lport;
2188
2189         if (interface->enabled == false) {
2190                 if (!ctlr->lp) {
2191                         pr_err(PFX "__bnx2fc_enable: lport not found\n");
2192                         return -ENODEV;
2193                 } else if (!bnx2fc_link_ok(ctlr->lp)) {
2194                         fcoe_ctlr_link_up(ctlr);
2195                         interface->enabled = true;
2196                 }
2197         }
2198
2199         /* Create static NPIV ports if any are contained in NVRAM */
2200         hba = interface->hba;
2201         lport = ctlr->lp;
2202
2203         if (!hba)
2204                 goto done;
2205
2206         if (!hba->cnic)
2207                 goto done;
2208
2209         if (!lport)
2210                 goto done;
2211
2212         if (!lport->host)
2213                 goto done;
2214
2215         if (!hba->cnic->get_fc_npiv_tbl)
2216                 goto done;
2217
2218         npiv_tbl = kzalloc(sizeof(struct cnic_fc_npiv_tbl), GFP_KERNEL);
2219         if (!npiv_tbl)
2220                 goto done;
2221
2222         if (hba->cnic->get_fc_npiv_tbl(hba->cnic, npiv_tbl))
2223                 goto done_free;
2224
2225         bnx2fc_npiv_create_vports(lport, npiv_tbl);
2226 done_free:
2227         kfree(npiv_tbl);
2228 done:
2229         return 0;
2230 }
2231
2232 /*
2233  * Deprecated: Use bnx2fc_enabled()
2234  */
2235 static int bnx2fc_enable(struct net_device *netdev)
2236 {
2237         struct bnx2fc_interface *interface;
2238         struct fcoe_ctlr *ctlr;
2239         int rc = 0;
2240
2241         rtnl_lock();
2242         mutex_lock(&bnx2fc_dev_lock);
2243
2244         interface = bnx2fc_interface_lookup(netdev);
2245         ctlr = bnx2fc_to_ctlr(interface);
2246         if (!interface) {
2247                 rc = -ENODEV;
2248                 pr_err(PFX "bnx2fc_enable: interface not found\n");
2249         } else {
2250                 rc = __bnx2fc_enable(ctlr);
2251         }
2252
2253         mutex_unlock(&bnx2fc_dev_lock);
2254         rtnl_unlock();
2255         return rc;
2256 }
2257
2258 /**
2259  * bnx2fc_ctlr_enabled() - Enable or disable an FCoE Controller
2260  * @cdev: The FCoE Controller that is being enabled or disabled
2261  *
2262  * fcoe_sysfs will ensure that the state of 'enabled' has
2263  * changed, so no checking is necessary here. This routine simply
2264  * calls fcoe_enable or fcoe_disable, both of which are deprecated.
2265  * When those routines are removed the functionality can be merged
2266  * here.
2267  */
2268 static int bnx2fc_ctlr_enabled(struct fcoe_ctlr_device *cdev)
2269 {
2270         struct fcoe_ctlr *ctlr = fcoe_ctlr_device_priv(cdev);
2271
2272         switch (cdev->enabled) {
2273         case FCOE_CTLR_ENABLED:
2274                 return __bnx2fc_enable(ctlr);
2275         case FCOE_CTLR_DISABLED:
2276                 return __bnx2fc_disable(ctlr);
2277         case FCOE_CTLR_UNUSED:
2278         default:
2279                 return -ENOTSUPP;
2280         };
2281 }
2282
2283 enum bnx2fc_create_link_state {
2284         BNX2FC_CREATE_LINK_DOWN,
2285         BNX2FC_CREATE_LINK_UP,
2286 };
2287
2288 /**
2289  * _bnx2fc_create() - Create bnx2fc FCoE interface
2290  * @netdev  :   The net_device object the Ethernet interface to create on
2291  * @fip_mode:   The FIP mode for this creation
2292  * @link_state: The ctlr link state on creation
2293  *
2294  * Called from either the libfcoe 'create' module parameter
2295  * via fcoe_create or from fcoe_syfs's ctlr_create file.
2296  *
2297  * libfcoe's 'create' module parameter is deprecated so some
2298  * consolidation of code can be done when that interface is
2299  * removed.
2300  *
2301  * Returns: 0 for success
2302  */
2303 static int _bnx2fc_create(struct net_device *netdev,
2304                           enum fip_mode fip_mode,
2305                           enum bnx2fc_create_link_state link_state)
2306 {
2307         struct fcoe_ctlr_device *cdev;
2308         struct fcoe_ctlr *ctlr;
2309         struct bnx2fc_interface *interface;
2310         struct bnx2fc_hba *hba;
2311         struct net_device *phys_dev = netdev;
2312         struct fc_lport *lport;
2313         struct ethtool_drvinfo drvinfo;
2314         int rc = 0;
2315         int vlan_id = 0;
2316
2317         BNX2FC_MISC_DBG("Entered bnx2fc_create\n");
2318         if (fip_mode != FIP_MODE_FABRIC) {
2319                 printk(KERN_ERR "fip mode not FABRIC\n");
2320                 return -EIO;
2321         }
2322
2323         rtnl_lock();
2324
2325         mutex_lock(&bnx2fc_dev_lock);
2326
2327         if (!try_module_get(THIS_MODULE)) {
2328                 rc = -EINVAL;
2329                 goto mod_err;
2330         }
2331
2332         /* obtain physical netdev */
2333         if (is_vlan_dev(netdev))
2334                 phys_dev = vlan_dev_real_dev(netdev);
2335
2336         /* verify if the physical device is a netxtreme2 device */
2337         if (phys_dev->ethtool_ops && phys_dev->ethtool_ops->get_drvinfo) {
2338                 memset(&drvinfo, 0, sizeof(drvinfo));
2339                 phys_dev->ethtool_ops->get_drvinfo(phys_dev, &drvinfo);
2340                 if (strncmp(drvinfo.driver, "bnx2x", strlen("bnx2x"))) {
2341                         printk(KERN_ERR PFX "Not a netxtreme2 device\n");
2342                         rc = -EINVAL;
2343                         goto netdev_err;
2344                 }
2345         } else {
2346                 printk(KERN_ERR PFX "unable to obtain drv_info\n");
2347                 rc = -EINVAL;
2348                 goto netdev_err;
2349         }
2350
2351         /* obtain interface and initialize rest of the structure */
2352         hba = bnx2fc_hba_lookup(phys_dev);
2353         if (!hba) {
2354                 rc = -ENODEV;
2355                 printk(KERN_ERR PFX "bnx2fc_create: hba not found\n");
2356                 goto netdev_err;
2357         }
2358
2359         if (bnx2fc_interface_lookup(netdev)) {
2360                 rc = -EEXIST;
2361                 goto netdev_err;
2362         }
2363
2364         interface = bnx2fc_interface_create(hba, netdev, fip_mode);
2365         if (!interface) {
2366                 printk(KERN_ERR PFX "bnx2fc_interface_create failed\n");
2367                 rc = -ENOMEM;
2368                 goto netdev_err;
2369         }
2370
2371         if (is_vlan_dev(netdev)) {
2372                 vlan_id = vlan_dev_vlan_id(netdev);
2373                 interface->vlan_enabled = 1;
2374         }
2375
2376         ctlr = bnx2fc_to_ctlr(interface);
2377         cdev = fcoe_ctlr_to_ctlr_dev(ctlr);
2378         interface->vlan_id = vlan_id;
2379         interface->tm_timeout = BNX2FC_TM_TIMEOUT;
2380
2381         interface->timer_work_queue =
2382                         create_singlethread_workqueue("bnx2fc_timer_wq");
2383         if (!interface->timer_work_queue) {
2384                 printk(KERN_ERR PFX "ulp_init could not create timer_wq\n");
2385                 rc = -EINVAL;
2386                 goto ifput_err;
2387         }
2388
2389         lport = bnx2fc_if_create(interface, &cdev->dev, 0);
2390         if (!lport) {
2391                 printk(KERN_ERR PFX "Failed to create interface (%s)\n",
2392                         netdev->name);
2393                 rc = -EINVAL;
2394                 goto if_create_err;
2395         }
2396
2397         /* Add interface to if_list */
2398         list_add_tail(&interface->list, &if_list);
2399
2400         lport->boot_time = jiffies;
2401
2402         /* Make this master N_port */
2403         ctlr->lp = lport;
2404
2405         if (link_state == BNX2FC_CREATE_LINK_UP)
2406                 cdev->enabled = FCOE_CTLR_ENABLED;
2407         else
2408                 cdev->enabled = FCOE_CTLR_DISABLED;
2409
2410         if (link_state == BNX2FC_CREATE_LINK_UP &&
2411             !bnx2fc_link_ok(lport)) {
2412                 fcoe_ctlr_link_up(ctlr);
2413                 fc_host_port_type(lport->host) = FC_PORTTYPE_NPORT;
2414                 set_bit(ADAPTER_STATE_READY, &interface->hba->adapter_state);
2415         }
2416
2417         BNX2FC_HBA_DBG(lport, "create: START DISC\n");
2418         bnx2fc_start_disc(interface);
2419
2420         if (link_state == BNX2FC_CREATE_LINK_UP)
2421                 interface->enabled = true;
2422
2423         /*
2424          * Release from kref_init in bnx2fc_interface_setup, on success
2425          * lport should be holding a reference taken in bnx2fc_if_create
2426          */
2427         bnx2fc_interface_put(interface);
2428         /* put netdev that was held while calling dev_get_by_name */
2429         mutex_unlock(&bnx2fc_dev_lock);
2430         rtnl_unlock();
2431         return 0;
2432
2433 if_create_err:
2434         destroy_workqueue(interface->timer_work_queue);
2435 ifput_err:
2436         bnx2fc_net_cleanup(interface);
2437         bnx2fc_interface_put(interface);
2438         goto mod_err;
2439 netdev_err:
2440         module_put(THIS_MODULE);
2441 mod_err:
2442         mutex_unlock(&bnx2fc_dev_lock);
2443         rtnl_unlock();
2444         return rc;
2445 }
2446
2447 /**
2448  * bnx2fc_create() - Create a bnx2fc interface
2449  * @netdev  : The net_device object the Ethernet interface to create on
2450  * @fip_mode: The FIP mode for this creation
2451  *
2452  * Called from fcoe transport
2453  *
2454  * Returns: 0 for success
2455  */
2456 static int bnx2fc_create(struct net_device *netdev, enum fip_mode fip_mode)
2457 {
2458         return _bnx2fc_create(netdev, fip_mode, BNX2FC_CREATE_LINK_UP);
2459 }
2460
2461 /**
2462  * bnx2fc_ctlr_alloc() - Allocate a bnx2fc interface from fcoe_sysfs
2463  * @netdev: The net_device to be used by the allocated FCoE Controller
2464  *
2465  * This routine is called from fcoe_sysfs. It will start the fcoe_ctlr
2466  * in a link_down state. The allows the user an opportunity to configure
2467  * the FCoE Controller from sysfs before enabling the FCoE Controller.
2468  *
2469  * Creating in with this routine starts the FCoE Controller in Fabric
2470  * mode. The user can change to VN2VN or another mode before enabling.
2471  */
2472 static int bnx2fc_ctlr_alloc(struct net_device *netdev)
2473 {
2474         return _bnx2fc_create(netdev, FIP_MODE_FABRIC,
2475                               BNX2FC_CREATE_LINK_DOWN);
2476 }
2477
2478 /**
2479  * bnx2fc_find_hba_for_cnic - maps cnic instance to bnx2fc hba instance
2480  *
2481  * @cnic:       Pointer to cnic device instance
2482  *
2483  **/
2484 static struct bnx2fc_hba *bnx2fc_find_hba_for_cnic(struct cnic_dev *cnic)
2485 {
2486         struct bnx2fc_hba *hba;
2487
2488         /* Called with bnx2fc_dev_lock held */
2489         list_for_each_entry(hba, &adapter_list, list) {
2490                 if (hba->cnic == cnic)
2491                         return hba;
2492         }
2493         return NULL;
2494 }
2495
2496 static struct bnx2fc_interface *bnx2fc_interface_lookup(struct net_device
2497                                                         *netdev)
2498 {
2499         struct bnx2fc_interface *interface;
2500
2501         /* Called with bnx2fc_dev_lock held */
2502         list_for_each_entry(interface, &if_list, list) {
2503                 if (interface->netdev == netdev)
2504                         return interface;
2505         }
2506         return NULL;
2507 }
2508
2509 static struct bnx2fc_hba *bnx2fc_hba_lookup(struct net_device
2510                                                       *phys_dev)
2511 {
2512         struct bnx2fc_hba *hba;
2513
2514         /* Called with bnx2fc_dev_lock held */
2515         list_for_each_entry(hba, &adapter_list, list) {
2516                 if (hba->phys_dev == phys_dev)
2517                         return hba;
2518         }
2519         printk(KERN_ERR PFX "adapter_lookup: hba NULL\n");
2520         return NULL;
2521 }
2522
2523 /**
2524  * bnx2fc_ulp_exit - shuts down adapter instance and frees all resources
2525  *
2526  * @dev:        cnic device handle
2527  */
2528 static void bnx2fc_ulp_exit(struct cnic_dev *dev)
2529 {
2530         struct bnx2fc_hba *hba;
2531         struct bnx2fc_interface *interface, *tmp;
2532
2533         BNX2FC_MISC_DBG("Entered bnx2fc_ulp_exit\n");
2534
2535         if (!test_bit(CNIC_F_BNX2X_CLASS, &dev->flags)) {
2536                 printk(KERN_ERR PFX "bnx2fc port check: %s, flags: %lx\n",
2537                         dev->netdev->name, dev->flags);
2538                 return;
2539         }
2540
2541         mutex_lock(&bnx2fc_dev_lock);
2542         hba = bnx2fc_find_hba_for_cnic(dev);
2543         if (!hba) {
2544                 printk(KERN_ERR PFX "bnx2fc_ulp_exit: hba not found, dev 0%p\n",
2545                        dev);
2546                 mutex_unlock(&bnx2fc_dev_lock);
2547                 return;
2548         }
2549
2550         list_del_init(&hba->list);
2551         adapter_count--;
2552
2553         list_for_each_entry_safe(interface, tmp, &if_list, list)
2554                 /* destroy not called yet, move to quiesced list */
2555                 if (interface->hba == hba)
2556                         __bnx2fc_destroy(interface);
2557         mutex_unlock(&bnx2fc_dev_lock);
2558
2559         /* Ensure ALL destroy work has been completed before return */
2560         flush_workqueue(bnx2fc_wq);
2561
2562         bnx2fc_ulp_stop(hba);
2563         /* unregister cnic device */
2564         if (test_and_clear_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic))
2565                 hba->cnic->unregister_device(hba->cnic, CNIC_ULP_FCOE);
2566         bnx2fc_hba_destroy(hba);
2567 }
2568
2569 static void bnx2fc_rport_terminate_io(struct fc_rport *rport)
2570 {
2571         /* This is a no-op */
2572 }
2573
2574 /**
2575  * bnx2fc_fcoe_reset - Resets the fcoe
2576  *
2577  * @shost: shost the reset is from
2578  *
2579  * Returns: always 0
2580  */
2581 static int bnx2fc_fcoe_reset(struct Scsi_Host *shost)
2582 {
2583         struct fc_lport *lport = shost_priv(shost);
2584         fc_lport_reset(lport);
2585         return 0;
2586 }
2587
2588
2589 static bool bnx2fc_match(struct net_device *netdev)
2590 {
2591         struct net_device *phys_dev = netdev;
2592
2593         mutex_lock(&bnx2fc_dev_lock);
2594         if (is_vlan_dev(netdev))
2595                 phys_dev = vlan_dev_real_dev(netdev);
2596
2597         if (bnx2fc_hba_lookup(phys_dev)) {
2598                 mutex_unlock(&bnx2fc_dev_lock);
2599                 return true;
2600         }
2601
2602         mutex_unlock(&bnx2fc_dev_lock);
2603         return false;
2604 }
2605
2606
2607 static struct fcoe_transport bnx2fc_transport = {
2608         .name = {"bnx2fc"},
2609         .attached = false,
2610         .list = LIST_HEAD_INIT(bnx2fc_transport.list),
2611         .alloc = bnx2fc_ctlr_alloc,
2612         .match = bnx2fc_match,
2613         .create = bnx2fc_create,
2614         .destroy = bnx2fc_destroy,
2615         .enable = bnx2fc_enable,
2616         .disable = bnx2fc_disable,
2617 };
2618
2619 /**
2620  * bnx2fc_cpu_online - Create a receive thread for an  online CPU
2621  *
2622  * @cpu: cpu index for the online cpu
2623  */
2624 static int bnx2fc_cpu_online(unsigned int cpu)
2625 {
2626         struct bnx2fc_percpu_s *p;
2627         struct task_struct *thread;
2628
2629         p = &per_cpu(bnx2fc_percpu, cpu);
2630
2631         thread = kthread_create_on_node(bnx2fc_percpu_io_thread,
2632                                         (void *)p, cpu_to_node(cpu),
2633                                         "bnx2fc_thread/%d", cpu);
2634         if (IS_ERR(thread))
2635                 return PTR_ERR(thread);
2636
2637         /* bind thread to the cpu */
2638         kthread_bind(thread, cpu);
2639         p->iothread = thread;
2640         wake_up_process(thread);
2641         return 0;
2642 }
2643
2644 static int bnx2fc_cpu_offline(unsigned int cpu)
2645 {
2646         struct bnx2fc_percpu_s *p;
2647         struct task_struct *thread;
2648         struct bnx2fc_work *work, *tmp;
2649
2650         BNX2FC_MISC_DBG("destroying io thread for CPU %d\n", cpu);
2651
2652         /* Prevent any new work from being queued for this CPU */
2653         p = &per_cpu(bnx2fc_percpu, cpu);
2654         spin_lock_bh(&p->fp_work_lock);
2655         thread = p->iothread;
2656         p->iothread = NULL;
2657
2658         /* Free all work in the list */
2659         list_for_each_entry_safe(work, tmp, &p->work_list, list) {
2660                 list_del_init(&work->list);
2661                 bnx2fc_process_cq_compl(work->tgt, work->wqe, work->rq_data,
2662                                         work->num_rq, work->task);
2663                 kfree(work);
2664         }
2665
2666         spin_unlock_bh(&p->fp_work_lock);
2667
2668         if (thread)
2669                 kthread_stop(thread);
2670         return 0;
2671 }
2672
2673 static int bnx2fc_slave_configure(struct scsi_device *sdev)
2674 {
2675         if (!bnx2fc_queue_depth)
2676                 return 0;
2677
2678         scsi_change_queue_depth(sdev, bnx2fc_queue_depth);
2679         return 0;
2680 }
2681
2682 static enum cpuhp_state bnx2fc_online_state;
2683
2684 /**
2685  * bnx2fc_mod_init - module init entry point
2686  *
2687  * Initialize driver wide global data structures, and register
2688  * with cnic module
2689  **/
2690 static int __init bnx2fc_mod_init(void)
2691 {
2692         struct fcoe_percpu_s *bg;
2693         struct task_struct *l2_thread;
2694         int rc = 0;
2695         unsigned int cpu = 0;
2696         struct bnx2fc_percpu_s *p;
2697
2698         printk(KERN_INFO PFX "%s", version);
2699
2700         /* register as a fcoe transport */
2701         rc = fcoe_transport_attach(&bnx2fc_transport);
2702         if (rc) {
2703                 printk(KERN_ERR "failed to register an fcoe transport, check "
2704                         "if libfcoe is loaded\n");
2705                 goto out;
2706         }
2707
2708         INIT_LIST_HEAD(&adapter_list);
2709         INIT_LIST_HEAD(&if_list);
2710         mutex_init(&bnx2fc_dev_lock);
2711         adapter_count = 0;
2712
2713         /* Attach FC transport template */
2714         rc = bnx2fc_attach_transport();
2715         if (rc)
2716                 goto detach_ft;
2717
2718         bnx2fc_wq = alloc_workqueue("bnx2fc", 0, 0);
2719         if (!bnx2fc_wq) {
2720                 rc = -ENOMEM;
2721                 goto release_bt;
2722         }
2723
2724         bg = &bnx2fc_global;
2725         skb_queue_head_init(&bg->fcoe_rx_list);
2726         l2_thread = kthread_create(bnx2fc_l2_rcv_thread,
2727                                    (void *)bg,
2728                                    "bnx2fc_l2_thread");
2729         if (IS_ERR(l2_thread)) {
2730                 rc = PTR_ERR(l2_thread);
2731                 goto free_wq;
2732         }
2733         wake_up_process(l2_thread);
2734         spin_lock_bh(&bg->fcoe_rx_list.lock);
2735         bg->kthread = l2_thread;
2736         spin_unlock_bh(&bg->fcoe_rx_list.lock);
2737
2738         for_each_possible_cpu(cpu) {
2739                 p = &per_cpu(bnx2fc_percpu, cpu);
2740                 INIT_LIST_HEAD(&p->work_list);
2741                 spin_lock_init(&p->fp_work_lock);
2742         }
2743
2744         rc = cpuhp_setup_state(CPUHP_AP_ONLINE_DYN, "scsi/bnx2fc:online",
2745                                bnx2fc_cpu_online, bnx2fc_cpu_offline);
2746         if (rc < 0)
2747                 goto stop_thread;
2748         bnx2fc_online_state = rc;
2749
2750         cnic_register_driver(CNIC_ULP_FCOE, &bnx2fc_cnic_cb);
2751         return 0;
2752
2753 stop_thread:
2754         kthread_stop(l2_thread);
2755 free_wq:
2756         destroy_workqueue(bnx2fc_wq);
2757 release_bt:
2758         bnx2fc_release_transport();
2759 detach_ft:
2760         fcoe_transport_detach(&bnx2fc_transport);
2761 out:
2762         return rc;
2763 }
2764
2765 static void __exit bnx2fc_mod_exit(void)
2766 {
2767         LIST_HEAD(to_be_deleted);
2768         struct bnx2fc_hba *hba, *next;
2769         struct fcoe_percpu_s *bg;
2770         struct task_struct *l2_thread;
2771         struct sk_buff *skb;
2772
2773         /*
2774          * NOTE: Since cnic calls register_driver routine rtnl_lock,
2775          * it will have higher precedence than bnx2fc_dev_lock.
2776          * unregister_device() cannot be called with bnx2fc_dev_lock
2777          * held.
2778          */
2779         mutex_lock(&bnx2fc_dev_lock);
2780         list_splice_init(&adapter_list, &to_be_deleted);
2781         adapter_count = 0;
2782         mutex_unlock(&bnx2fc_dev_lock);
2783
2784         /* Unregister with cnic */
2785         list_for_each_entry_safe(hba, next, &to_be_deleted, list) {
2786                 list_del_init(&hba->list);
2787                 printk(KERN_ERR PFX "MOD_EXIT:destroy hba = 0x%p\n",
2788                        hba);
2789                 bnx2fc_ulp_stop(hba);
2790                 /* unregister cnic device */
2791                 if (test_and_clear_bit(BNX2FC_CNIC_REGISTERED,
2792                                        &hba->reg_with_cnic))
2793                         hba->cnic->unregister_device(hba->cnic,
2794                                                          CNIC_ULP_FCOE);
2795                 bnx2fc_hba_destroy(hba);
2796         }
2797         cnic_unregister_driver(CNIC_ULP_FCOE);
2798
2799         /* Destroy global thread */
2800         bg = &bnx2fc_global;
2801         spin_lock_bh(&bg->fcoe_rx_list.lock);
2802         l2_thread = bg->kthread;
2803         bg->kthread = NULL;
2804         while ((skb = __skb_dequeue(&bg->fcoe_rx_list)) != NULL)
2805                 kfree_skb(skb);
2806
2807         spin_unlock_bh(&bg->fcoe_rx_list.lock);
2808
2809         if (l2_thread)
2810                 kthread_stop(l2_thread);
2811
2812         cpuhp_remove_state(bnx2fc_online_state);
2813
2814         destroy_workqueue(bnx2fc_wq);
2815         /*
2816          * detach from scsi transport
2817          * must happen after all destroys are done
2818          */
2819         bnx2fc_release_transport();
2820
2821         /* detach from fcoe transport */
2822         fcoe_transport_detach(&bnx2fc_transport);
2823 }
2824
2825 module_init(bnx2fc_mod_init);
2826 module_exit(bnx2fc_mod_exit);
2827
2828 static struct fcoe_sysfs_function_template bnx2fc_fcoe_sysfs_templ = {
2829         .set_fcoe_ctlr_enabled = bnx2fc_ctlr_enabled,
2830         .get_fcoe_ctlr_link_fail = fcoe_ctlr_get_lesb,
2831         .get_fcoe_ctlr_vlink_fail = fcoe_ctlr_get_lesb,
2832         .get_fcoe_ctlr_miss_fka = fcoe_ctlr_get_lesb,
2833         .get_fcoe_ctlr_symb_err = fcoe_ctlr_get_lesb,
2834         .get_fcoe_ctlr_err_block = fcoe_ctlr_get_lesb,
2835         .get_fcoe_ctlr_fcs_error = fcoe_ctlr_get_lesb,
2836
2837         .get_fcoe_fcf_selected = fcoe_fcf_get_selected,
2838         .get_fcoe_fcf_vlan_id = bnx2fc_fcf_get_vlan_id,
2839 };
2840
2841 static struct fc_function_template bnx2fc_transport_function = {
2842         .show_host_node_name = 1,
2843         .show_host_port_name = 1,
2844         .show_host_supported_classes = 1,
2845         .show_host_supported_fc4s = 1,
2846         .show_host_active_fc4s = 1,
2847         .show_host_maxframe_size = 1,
2848
2849         .show_host_port_id = 1,
2850         .show_host_supported_speeds = 1,
2851         .get_host_speed = fc_get_host_speed,
2852         .show_host_speed = 1,
2853         .show_host_port_type = 1,
2854         .get_host_port_state = fc_get_host_port_state,
2855         .show_host_port_state = 1,
2856         .show_host_symbolic_name = 1,
2857
2858         .dd_fcrport_size = (sizeof(struct fc_rport_libfc_priv) +
2859                                 sizeof(struct bnx2fc_rport)),
2860         .show_rport_maxframe_size = 1,
2861         .show_rport_supported_classes = 1,
2862
2863         .show_host_fabric_name = 1,
2864         .show_starget_node_name = 1,
2865         .show_starget_port_name = 1,
2866         .show_starget_port_id = 1,
2867         .set_rport_dev_loss_tmo = fc_set_rport_loss_tmo,
2868         .show_rport_dev_loss_tmo = 1,
2869         .get_fc_host_stats = bnx2fc_get_host_stats,
2870
2871         .issue_fc_host_lip = bnx2fc_fcoe_reset,
2872
2873         .terminate_rport_io = bnx2fc_rport_terminate_io,
2874
2875         .vport_create = bnx2fc_vport_create,
2876         .vport_delete = bnx2fc_vport_destroy,
2877         .vport_disable = bnx2fc_vport_disable,
2878         .bsg_request = fc_lport_bsg_request,
2879 };
2880
2881 static struct fc_function_template bnx2fc_vport_xport_function = {
2882         .show_host_node_name = 1,
2883         .show_host_port_name = 1,
2884         .show_host_supported_classes = 1,
2885         .show_host_supported_fc4s = 1,
2886         .show_host_active_fc4s = 1,
2887         .show_host_maxframe_size = 1,
2888
2889         .show_host_port_id = 1,
2890         .show_host_supported_speeds = 1,
2891         .get_host_speed = fc_get_host_speed,
2892         .show_host_speed = 1,
2893         .show_host_port_type = 1,
2894         .get_host_port_state = fc_get_host_port_state,
2895         .show_host_port_state = 1,
2896         .show_host_symbolic_name = 1,
2897
2898         .dd_fcrport_size = (sizeof(struct fc_rport_libfc_priv) +
2899                                 sizeof(struct bnx2fc_rport)),
2900         .show_rport_maxframe_size = 1,
2901         .show_rport_supported_classes = 1,
2902
2903         .show_host_fabric_name = 1,
2904         .show_starget_node_name = 1,
2905         .show_starget_port_name = 1,
2906         .show_starget_port_id = 1,
2907         .set_rport_dev_loss_tmo = fc_set_rport_loss_tmo,
2908         .show_rport_dev_loss_tmo = 1,
2909         .get_fc_host_stats = fc_get_host_stats,
2910         .issue_fc_host_lip = bnx2fc_fcoe_reset,
2911         .terminate_rport_io = fc_rport_terminate_io,
2912         .bsg_request = fc_lport_bsg_request,
2913 };
2914
2915 /*
2916  * Additional scsi_host attributes.
2917  */
2918 static ssize_t
2919 bnx2fc_tm_timeout_show(struct device *dev, struct device_attribute *attr,
2920         char *buf)
2921 {
2922         struct Scsi_Host *shost = class_to_shost(dev);
2923         struct fc_lport *lport = shost_priv(shost);
2924         struct fcoe_port *port = lport_priv(lport);
2925         struct bnx2fc_interface *interface = port->priv;
2926
2927         sprintf(buf, "%u\n", interface->tm_timeout);
2928         return strlen(buf);
2929 }
2930
2931 static ssize_t
2932 bnx2fc_tm_timeout_store(struct device *dev,
2933         struct device_attribute *attr, const char *buf, size_t count)
2934 {
2935         struct Scsi_Host *shost = class_to_shost(dev);
2936         struct fc_lport *lport = shost_priv(shost);
2937         struct fcoe_port *port = lport_priv(lport);
2938         struct bnx2fc_interface *interface = port->priv;
2939         int rval, val;
2940
2941         rval = kstrtouint(buf, 10, &val);
2942         if (rval)
2943                 return rval;
2944         if (val > 255)
2945                 return -ERANGE;
2946
2947         interface->tm_timeout = (u8)val;
2948         return strlen(buf);
2949 }
2950
2951 static DEVICE_ATTR(tm_timeout, S_IRUGO|S_IWUSR, bnx2fc_tm_timeout_show,
2952         bnx2fc_tm_timeout_store);
2953
2954 static struct device_attribute *bnx2fc_host_attrs[] = {
2955         &dev_attr_tm_timeout,
2956         NULL,
2957 };
2958
2959 /*
2960  * scsi_host_template structure used while registering with SCSI-ml
2961  */
2962 static struct scsi_host_template bnx2fc_shost_template = {
2963         .module                 = THIS_MODULE,
2964         .name                   = "QLogic Offload FCoE Initiator",
2965         .queuecommand           = bnx2fc_queuecommand,
2966         .eh_timed_out           = fc_eh_timed_out,
2967         .eh_abort_handler       = bnx2fc_eh_abort,        /* abts */
2968         .eh_device_reset_handler = bnx2fc_eh_device_reset, /* lun reset */
2969         .eh_target_reset_handler = bnx2fc_eh_target_reset, /* tgt reset */
2970         .eh_host_reset_handler  = fc_eh_host_reset,
2971         .slave_alloc            = fc_slave_alloc,
2972         .change_queue_depth     = scsi_change_queue_depth,
2973         .this_id                = -1,
2974         .cmd_per_lun            = 3,
2975         .sg_tablesize           = BNX2FC_MAX_BDS_PER_CMD,
2976         .dma_boundary           = 0x7fff,
2977         .max_sectors            = 0x3fbf,
2978         .track_queue_depth      = 1,
2979         .slave_configure        = bnx2fc_slave_configure,
2980         .shost_attrs            = bnx2fc_host_attrs,
2981 };
2982
2983 static struct libfc_function_template bnx2fc_libfc_fcn_templ = {
2984         .frame_send             = bnx2fc_xmit,
2985         .elsct_send             = bnx2fc_elsct_send,
2986         .fcp_abort_io           = bnx2fc_abort_io,
2987         .fcp_cleanup            = bnx2fc_cleanup,
2988         .get_lesb               = fcoe_get_lesb,
2989         .rport_event_callback   = bnx2fc_rport_event_handler,
2990 };
2991
2992 /*
2993  * bnx2fc_cnic_cb - global template of bnx2fc - cnic driver interface
2994  *                      structure carrying callback function pointers
2995  */
2996 static struct cnic_ulp_ops bnx2fc_cnic_cb = {
2997         .owner                  = THIS_MODULE,
2998         .cnic_init              = bnx2fc_ulp_init,
2999         .cnic_exit              = bnx2fc_ulp_exit,
3000         .cnic_start             = bnx2fc_ulp_start,
3001         .cnic_stop              = bnx2fc_ulp_stop,
3002         .indicate_kcqes         = bnx2fc_indicate_kcqe,
3003         .indicate_netevent      = bnx2fc_indicate_netevent,
3004         .cnic_get_stats         = bnx2fc_ulp_get_stats,
3005 };