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 (bprakash@broadcom.com)
  15  */
  16
  17 #include "bnx2fc.h"
  18
  19 static struct list_head adapter_list;
  20 static struct list_head if_list;
  21 static u32 adapter_count;
  22 static DEFINE_MUTEX(bnx2fc_dev_lock);
  23 DEFINE_PER_CPU(struct bnx2fc_percpu_s, bnx2fc_percpu);
  24
  25 #define DRV_MODULE_NAME         "bnx2fc"
  26 #define DRV_MODULE_VERSION      BNX2FC_VERSION
  27 #define DRV_MODULE_RELDATE      "October 15, 2015"
  28
  29
  30 static char version[] =
  31                 "QLogic FCoE Driver " DRV_MODULE_NAME \
  32                 " v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n";
  33
  34
  35 MODULE_AUTHOR("Bhanu Prakash Gollapudi <bprakash@broadcom.com>");
  36 MODULE_DESCRIPTION("QLogic FCoE Driver");
  37 MODULE_LICENSE("GPL");
  38 MODULE_VERSION(DRV_MODULE_VERSION);
  39
  40 #define BNX2FC_MAX_QUEUE_DEPTH  256
  41 #define BNX2FC_MIN_QUEUE_DEPTH  32
  42 #define FCOE_WORD_TO_BYTE  4
  43
  44 static struct scsi_transport_template   *bnx2fc_transport_template;
  45 static struct scsi_transport_template   *bnx2fc_vport_xport_template;
  46
  47 struct workqueue_struct *bnx2fc_wq;
  48
  49 /* bnx2fc structure needs only one instance of the fcoe_percpu_s structure.
  50  * Here the io threads are per cpu but the l2 thread is just one
  51  */
  52 struct fcoe_percpu_s bnx2fc_global;
  53 DEFINE_SPINLOCK(bnx2fc_global_lock);
  54
  55 static struct cnic_ulp_ops bnx2fc_cnic_cb;
  56 static struct libfc_function_template bnx2fc_libfc_fcn_templ;
  57 static struct scsi_host_template bnx2fc_shost_template;
  58 static struct fc_function_template bnx2fc_transport_function;
  59 static struct fcoe_sysfs_function_template bnx2fc_fcoe_sysfs_templ;
  60 static struct fc_function_template bnx2fc_vport_xport_function;
  61 static int bnx2fc_create(struct net_device *netdev, enum fip_mode fip_mode);
  62 static void __bnx2fc_destroy(struct bnx2fc_interface *interface);
  63 static int bnx2fc_destroy(struct net_device *net_device);
  64 static int bnx2fc_enable(struct net_device *netdev);
  65 static int bnx2fc_disable(struct net_device *netdev);
  66
  67 /* fcoe_syfs control interface handlers */
  68 static int bnx2fc_ctlr_alloc(struct net_device *netdev);
  69 static int bnx2fc_ctlr_enabled(struct fcoe_ctlr_device *cdev);
  70
  71 static void bnx2fc_recv_frame(struct sk_buff *skb);
  72
  73 static void bnx2fc_start_disc(struct bnx2fc_interface *interface);
  74 static int bnx2fc_shost_config(struct fc_lport *lport, struct device *dev);
  75 static int bnx2fc_lport_config(struct fc_lport *lport);
  76 static int bnx2fc_em_config(struct fc_lport *lport, struct bnx2fc_hba *hba);
  77 static int bnx2fc_bind_adapter_devices(struct bnx2fc_hba *hba);
  78 static void bnx2fc_unbind_adapter_devices(struct bnx2fc_hba *hba);
  79 static int bnx2fc_bind_pcidev(struct bnx2fc_hba *hba);
  80 static void bnx2fc_unbind_pcidev(struct bnx2fc_hba *hba);
  81 static struct fc_lport *bnx2fc_if_create(struct bnx2fc_interface *interface,
  82                                   struct device *parent, int npiv);
  83 static void bnx2fc_destroy_work(struct work_struct *work);
  84
  85 static struct bnx2fc_hba *bnx2fc_hba_lookup(struct net_device *phys_dev);
  86 static struct bnx2fc_interface *bnx2fc_interface_lookup(struct net_device
  87                                                         *phys_dev);
  88 static inline void bnx2fc_interface_put(struct bnx2fc_interface *interface);
  89 static struct bnx2fc_hba *bnx2fc_find_hba_for_cnic(struct cnic_dev *cnic);
  90
  91 static int bnx2fc_fw_init(struct bnx2fc_hba *hba);
  92 static void bnx2fc_fw_destroy(struct bnx2fc_hba *hba);
  93
  94 static void bnx2fc_port_shutdown(struct fc_lport *lport);
  95 static void bnx2fc_stop(struct bnx2fc_interface *interface);
  96 static int __init bnx2fc_mod_init(void);
  97 static void __exit bnx2fc_mod_exit(void);
  98
  99 unsigned int bnx2fc_debug_level;
 100 module_param_named(debug_logging, bnx2fc_debug_level, int, S_IRUGO|S_IWUSR);
 101 MODULE_PARM_DESC(debug_logging,
 102                 "Option to enable extended logging,\n"
 103                 "\t\tDefault is 0 - no logging.\n"
 104                 "\t\t0x01 - SCSI cmd error, cleanup.\n"
 105                 "\t\t0x02 - Session setup, cleanup, etc.\n"
 106                 "\t\t0x04 - lport events, link, mtu, etc.\n"
 107                 "\t\t0x08 - ELS logs.\n"
 108                 "\t\t0x10 - fcoe L2 fame related logs.\n"
 109                 "\t\t0xff - LOG all messages.");
 110
 111 uint bnx2fc_devloss_tmo;
 112 module_param_named(devloss_tmo, bnx2fc_devloss_tmo, uint, S_IRUGO);
 113 MODULE_PARM_DESC(devloss_tmo, " Change devloss_tmo for the remote ports "
 114         "attached via bnx2fc.");
 115
 116 uint bnx2fc_max_luns = BNX2FC_MAX_LUN;
 117 module_param_named(max_luns, bnx2fc_max_luns, uint, S_IRUGO);
 118 MODULE_PARM_DESC(max_luns, " Change the default max_lun per SCSI host. Default "
 119         "0xffff.");
 120
 121 uint bnx2fc_queue_depth;
 122 module_param_named(queue_depth, bnx2fc_queue_depth, uint, S_IRUGO);
 123 MODULE_PARM_DESC(queue_depth, " Change the default queue depth of SCSI devices "
 124         "attached via bnx2fc.");
 125
 126 uint bnx2fc_log_fka;
 127 module_param_named(log_fka, bnx2fc_log_fka, uint, S_IRUGO|S_IWUSR);
 128 MODULE_PARM_DESC(log_fka, " Print message to kernel log when fcoe is "
 129         "initiating a FIP keep alive when debug logging is enabled.");
 130
 131 static inline struct net_device *bnx2fc_netdev(const struct fc_lport *lport)
 132 {
 133         return ((struct bnx2fc_interface *)
 134                 ((struct fcoe_port *)lport_priv(lport))->priv)->netdev;
 135 }
 136
 137 static void bnx2fc_fcf_get_vlan_id(struct fcoe_fcf_device *fcf_dev)
 138 {
 139         struct fcoe_ctlr_device *ctlr_dev =
 140                 fcoe_fcf_dev_to_ctlr_dev(fcf_dev);
 141         struct fcoe_ctlr *ctlr = fcoe_ctlr_device_priv(ctlr_dev);
 142         struct bnx2fc_interface *fcoe = fcoe_ctlr_priv(ctlr);
 143
 144         fcf_dev->vlan_id = fcoe->vlan_id;
 145 }
 146
 147 static void bnx2fc_clean_rx_queue(struct fc_lport *lp)
 148 {
 149         struct fcoe_percpu_s *bg;
 150         struct fcoe_rcv_info *fr;
 151         struct sk_buff_head *list;
 152         struct sk_buff *skb, *next;
 153         struct sk_buff *head;
 154
 155         bg = &bnx2fc_global;
 156         spin_lock_bh(&bg->fcoe_rx_list.lock);
 157         list = &bg->fcoe_rx_list;
 158         head = list->next;
 159         for (skb = head; skb != (struct sk_buff *)list;
 160              skb = next) {
 161                 next = skb->next;
 162                 fr = fcoe_dev_from_skb(skb);
 163                 if (fr->fr_dev == lp) {
 164                         __skb_unlink(skb, list);
 165                         kfree_skb(skb);
 166                 }
 167         }
 168         spin_unlock_bh(&bg->fcoe_rx_list.lock);
 169 }
 170
 171 int bnx2fc_get_paged_crc_eof(struct sk_buff *skb, int tlen)
 172 {
 173         int rc;
 174         spin_lock(&bnx2fc_global_lock);
 175         rc = fcoe_get_paged_crc_eof(skb, tlen, &bnx2fc_global);
 176         spin_unlock(&bnx2fc_global_lock);
 177
 178         return rc;
 179 }
 180
 181 static void bnx2fc_abort_io(struct fc_lport *lport)
 182 {
 183         /*
 184          * This function is no-op for bnx2fc, but we do
 185          * not want to leave it as NULL either, as libfc
 186          * can call the default function which is
 187          * fc_fcp_abort_io.
 188          */
 189 }
 190
 191 static void bnx2fc_cleanup(struct fc_lport *lport)
 192 {
 193         struct fcoe_port *port = lport_priv(lport);
 194         struct bnx2fc_interface *interface = port->priv;
 195         struct bnx2fc_hba *hba = interface->hba;
 196         struct bnx2fc_rport *tgt;
 197         int i;
 198
 199         BNX2FC_MISC_DBG("Entered %s\n", __func__);
 200         mutex_lock(&hba->hba_mutex);
 201         spin_lock_bh(&hba->hba_lock);
 202         for (i = 0; i < BNX2FC_NUM_MAX_SESS; i++) {
 203                 tgt = hba->tgt_ofld_list[i];
 204                 if (tgt) {
 205                         /* Cleanup IOs belonging to requested vport */
 206                         if (tgt->port == port) {
 207                                 spin_unlock_bh(&hba->hba_lock);
 208                                 BNX2FC_TGT_DBG(tgt, "flush/cleanup\n");
 209                                 bnx2fc_flush_active_ios(tgt);
 210                                 spin_lock_bh(&hba->hba_lock);
 211                         }
 212                 }
 213         }
 214         spin_unlock_bh(&hba->hba_lock);
 215         mutex_unlock(&hba->hba_mutex);
 216 }
 217
 218 static int bnx2fc_xmit_l2_frame(struct bnx2fc_rport *tgt,
 219                              struct fc_frame *fp)
 220 {
 221         struct fc_rport_priv *rdata = tgt->rdata;
 222         struct fc_frame_header *fh;
 223         int rc = 0;
 224
 225         fh = fc_frame_header_get(fp);
 226         BNX2FC_TGT_DBG(tgt, "Xmit L2 frame rport = 0x%x, oxid = 0x%x, "
 227                         "r_ctl = 0x%x\n", rdata->ids.port_id,
 228                         ntohs(fh->fh_ox_id), fh->fh_r_ctl);
 229         if ((fh->fh_type == FC_TYPE_ELS) &&
 230             (fh->fh_r_ctl == FC_RCTL_ELS_REQ)) {
 231
 232                 switch (fc_frame_payload_op(fp)) {
 233                 case ELS_ADISC:
 234                         rc = bnx2fc_send_adisc(tgt, fp);
 235                         break;
 236                 case ELS_LOGO:
 237                         rc = bnx2fc_send_logo(tgt, fp);
 238                         break;
 239                 case ELS_RLS:
 240                         rc = bnx2fc_send_rls(tgt, fp);
 241                         break;
 242                 default:
 243                         break;
 244                 }
 245         } else if ((fh->fh_type ==  FC_TYPE_BLS) &&
 246             (fh->fh_r_ctl == FC_RCTL_BA_ABTS))
 247                 BNX2FC_TGT_DBG(tgt, "ABTS frame\n");
 248         else {
 249                 BNX2FC_TGT_DBG(tgt, "Send L2 frame type 0x%x "
 250                                 "rctl 0x%x thru non-offload path\n",
 251                                 fh->fh_type, fh->fh_r_ctl);
 252                 return -ENODEV;
 253         }
 254         if (rc)
 255                 return -ENOMEM;
 256         else
 257                 return 0;
 258 }
 259
 260 /**
 261  * bnx2fc_xmit - bnx2fc's FCoE frame transmit function
 262  *
 263  * @lport:      the associated local port
 264  * @fp: the fc_frame to be transmitted
 265  */
 266 static int bnx2fc_xmit(struct fc_lport *lport, struct fc_frame *fp)
 267 {
 268         struct ethhdr           *eh;
 269         struct fcoe_crc_eof     *cp;
 270         struct sk_buff          *skb;
 271         struct fc_frame_header  *fh;
 272         struct bnx2fc_interface *interface;
 273         struct fcoe_ctlr        *ctlr;
 274         struct bnx2fc_hba *hba;
 275         struct fcoe_port        *port;
 276         struct fcoe_hdr         *hp;
 277         struct bnx2fc_rport     *tgt;
 278         struct fc_stats         *stats;
 279         u8                      sof, eof;
 280         u32                     crc;
 281         unsigned int            hlen, tlen, elen;
 282         int                     wlen, rc = 0;
 283
 284         port = (struct fcoe_port *)lport_priv(lport);
 285         interface = port->priv;
 286         ctlr = bnx2fc_to_ctlr(interface);
 287         hba = interface->hba;
 288
 289         fh = fc_frame_header_get(fp);
 290
 291         skb = fp_skb(fp);
 292         if (!lport->link_up) {
 293                 BNX2FC_HBA_DBG(lport, "bnx2fc_xmit link down\n");
 294                 kfree_skb(skb);
 295                 return 0;
 296         }
 297
 298         if (unlikely(fh->fh_r_ctl == FC_RCTL_ELS_REQ)) {
 299                 if (!ctlr->sel_fcf) {
 300                         BNX2FC_HBA_DBG(lport, "FCF not selected yet!\n");
 301                         kfree_skb(skb);
 302                         return -EINVAL;
 303                 }
 304                 if (fcoe_ctlr_els_send(ctlr, lport, skb))
 305                         return 0;
 306         }
 307
 308         sof = fr_sof(fp);
 309         eof = fr_eof(fp);
 310
 311         /*
 312          * Snoop the frame header to check if the frame is for
 313          * an offloaded session
 314          */
 315         /*
 316          * tgt_ofld_list access is synchronized using
 317          * both hba mutex and hba lock. Atleast hba mutex or
 318          * hba lock needs to be held for read access.
 319          */
 320
 321         spin_lock_bh(&hba->hba_lock);
 322         tgt = bnx2fc_tgt_lookup(port, ntoh24(fh->fh_d_id));
 323         if (tgt && (test_bit(BNX2FC_FLAG_SESSION_READY, &tgt->flags))) {
 324                 /* This frame is for offloaded session */
 325                 BNX2FC_HBA_DBG(lport, "xmit: Frame is for offloaded session "
 326                                 "port_id = 0x%x\n", ntoh24(fh->fh_d_id));
 327                 spin_unlock_bh(&hba->hba_lock);
 328                 rc = bnx2fc_xmit_l2_frame(tgt, fp);
 329                 if (rc != -ENODEV) {
 330                         kfree_skb(skb);
 331                         return rc;
 332                 }
 333         } else {
 334                 spin_unlock_bh(&hba->hba_lock);
 335         }
 336
 337         elen = sizeof(struct ethhdr);
 338         hlen = sizeof(struct fcoe_hdr);
 339         tlen = sizeof(struct fcoe_crc_eof);
 340         wlen = (skb->len - tlen + sizeof(crc)) / FCOE_WORD_TO_BYTE;
 341
 342         skb->ip_summed = CHECKSUM_NONE;
 343         crc = fcoe_fc_crc(fp);
 344
 345         /* copy port crc and eof to the skb buff */
 346         if (skb_is_nonlinear(skb)) {
 347                 skb_frag_t *frag;
 348                 if (bnx2fc_get_paged_crc_eof(skb, tlen)) {
 349                         kfree_skb(skb);
 350                         return -ENOMEM;
 351                 }
 352                 frag = &skb_shinfo(skb)->frags[skb_shinfo(skb)->nr_frags - 1];
 353                 cp = kmap_atomic(skb_frag_page(frag)) + frag->page_offset;
 354         } else {
 355                 cp = skb_put(skb, tlen);
 356         }
 357
 358         memset(cp, 0, sizeof(*cp));
 359         cp->fcoe_eof = eof;
 360         cp->fcoe_crc32 = cpu_to_le32(~crc);
 361         if (skb_is_nonlinear(skb)) {
 362                 kunmap_atomic(cp);
 363                 cp = NULL;
 364         }
 365
 366         /* adjust skb network/transport offsets to match mac/fcoe/port */
 367         skb_push(skb, elen + hlen);
 368         skb_reset_mac_header(skb);
 369         skb_reset_network_header(skb);
 370         skb->mac_len = elen;
 371         skb->protocol = htons(ETH_P_FCOE);
 372         skb->dev = interface->netdev;
 373
 374         /* fill up mac and fcoe headers */
 375         eh = eth_hdr(skb);
 376         eh->h_proto = htons(ETH_P_FCOE);
 377         if (ctlr->map_dest)
 378                 fc_fcoe_set_mac(eh->h_dest, fh->fh_d_id);
 379         else
 380                 /* insert GW address */
 381                 memcpy(eh->h_dest, ctlr->dest_addr, ETH_ALEN);
 382
 383         if (unlikely(ctlr->flogi_oxid != FC_XID_UNKNOWN))
 384                 memcpy(eh->h_source, ctlr->ctl_src_addr, ETH_ALEN);
 385         else
 386                 memcpy(eh->h_source, port->data_src_addr, ETH_ALEN);
 387
 388         hp = (struct fcoe_hdr *)(eh + 1);
 389         memset(hp, 0, sizeof(*hp));
 390         if (FC_FCOE_VER)
 391                 FC_FCOE_ENCAPS_VER(hp, FC_FCOE_VER);
 392         hp->fcoe_sof = sof;
 393
 394         /* fcoe lso, mss is in max_payload which is non-zero for FCP data */
 395         if (lport->seq_offload && fr_max_payload(fp)) {
 396                 skb_shinfo(skb)->gso_type = SKB_GSO_FCOE;
 397                 skb_shinfo(skb)->gso_size = fr_max_payload(fp);
 398         } else {
 399                 skb_shinfo(skb)->gso_type = 0;
 400                 skb_shinfo(skb)->gso_size = 0;
 401         }
 402
 403         /*update tx stats */
 404         stats = per_cpu_ptr(lport->stats, get_cpu());
 405         stats->TxFrames++;
 406         stats->TxWords += wlen;
 407         put_cpu();
 408
 409         /* send down to lld */
 410         fr_dev(fp) = lport;
 411         if (port->fcoe_pending_queue.qlen)
 412                 fcoe_check_wait_queue(lport, skb);
 413         else if (fcoe_start_io(skb))
 414                 fcoe_check_wait_queue(lport, skb);
 415
 416         return 0;
 417 }
 418
 419 /**
 420  * bnx2fc_rcv - This is bnx2fc's receive function called by NET_RX_SOFTIRQ
 421  *
 422  * @skb:        the receive socket buffer
 423  * @dev:        associated net device
 424  * @ptype:      context
 425  * @olddev:     last device
 426  *
 427  * This function receives the packet and builds FC frame and passes it up
 428  */
 429 static int bnx2fc_rcv(struct sk_buff *skb, struct net_device *dev,
 430                 struct packet_type *ptype, struct net_device *olddev)
 431 {
 432         struct fc_lport *lport;
 433         struct bnx2fc_interface *interface;
 434         struct fcoe_ctlr *ctlr;
 435         struct fc_frame_header *fh;
 436         struct fcoe_rcv_info *fr;
 437         struct fcoe_percpu_s *bg;
 438         struct sk_buff *tmp_skb;
 439         unsigned short oxid;
 440
 441         interface = container_of(ptype, struct bnx2fc_interface,
 442                                  fcoe_packet_type);
 443         ctlr = bnx2fc_to_ctlr(interface);
 444         lport = ctlr->lp;
 445
 446         if (unlikely(lport == NULL)) {
 447                 printk(KERN_ERR PFX "bnx2fc_rcv: lport is NULL\n");
 448                 goto err;
 449         }
 450
 451         tmp_skb = skb_share_check(skb, GFP_ATOMIC);
 452         if (!tmp_skb)
 453                 goto err;
 454
 455         skb = tmp_skb;
 456
 457         if (unlikely(eth_hdr(skb)->h_proto != htons(ETH_P_FCOE))) {
 458                 printk(KERN_ERR PFX "bnx2fc_rcv: Wrong FC type frame\n");
 459                 goto err;
 460         }
 461
 462         /*
 463          * Check for minimum frame length, and make sure required FCoE
 464          * and FC headers are pulled into the linear data area.
 465          */
 466         if (unlikely((skb->len < FCOE_MIN_FRAME) ||
 467             !pskb_may_pull(skb, FCOE_HEADER_LEN)))
 468                 goto err;
 469
 470         skb_set_transport_header(skb, sizeof(struct fcoe_hdr));
 471         fh = (struct fc_frame_header *) skb_transport_header(skb);
 472
 473         oxid = ntohs(fh->fh_ox_id);
 474
 475         fr = fcoe_dev_from_skb(skb);
 476         fr->fr_dev = lport;
 477
 478         bg = &bnx2fc_global;
 479         spin_lock(&bg->fcoe_rx_list.lock);
 480
 481         __skb_queue_tail(&bg->fcoe_rx_list, skb);
 482         if (bg->fcoe_rx_list.qlen == 1)
 483                 wake_up_process(bg->kthread);
 484
 485         spin_unlock(&bg->fcoe_rx_list.lock);
 486
 487         return 0;
 488 err:
 489         kfree_skb(skb);
 490         return -1;
 491 }
 492
 493 static int bnx2fc_l2_rcv_thread(void *arg)
 494 {
 495         struct fcoe_percpu_s *bg = arg;
 496         struct sk_buff *skb;
 497
 498         set_user_nice(current, MIN_NICE);
 499         set_current_state(TASK_INTERRUPTIBLE);
 500         while (!kthread_should_stop()) {
 501                 schedule();
 502                 spin_lock_bh(&bg->fcoe_rx_list.lock);
 503                 while ((skb = __skb_dequeue(&bg->fcoe_rx_list)) != NULL) {
 504                         spin_unlock_bh(&bg->fcoe_rx_list.lock);
 505                         bnx2fc_recv_frame(skb);
 506                         spin_lock_bh(&bg->fcoe_rx_list.lock);
 507                 }
 508                 __set_current_state(TASK_INTERRUPTIBLE);
 509                 spin_unlock_bh(&bg->fcoe_rx_list.lock);
 510         }
 511         __set_current_state(TASK_RUNNING);
 512         return 0;
 513 }
 514
 515
 516 static void bnx2fc_recv_frame(struct sk_buff *skb)
 517 {
 518         u32 fr_len;
 519         struct fc_lport *lport;
 520         struct fcoe_rcv_info *fr;
 521         struct fc_stats *stats;
 522         struct fc_frame_header *fh;
 523         struct fcoe_crc_eof crc_eof;
 524         struct fc_frame *fp;
 525         struct fc_lport *vn_port;
 526         struct fcoe_port *port, *phys_port;
 527         u8 *mac = NULL;
 528         u8 *dest_mac = NULL;
 529         struct fcoe_hdr *hp;
 530         struct bnx2fc_interface *interface;
 531         struct fcoe_ctlr *ctlr;
 532
 533         fr = fcoe_dev_from_skb(skb);
 534         lport = fr->fr_dev;
 535         if (unlikely(lport == NULL)) {
 536                 printk(KERN_ERR PFX "Invalid lport struct\n");
 537                 kfree_skb(skb);
 538                 return;
 539         }
 540
 541         if (skb_is_nonlinear(skb))
 542                 skb_linearize(skb);
 543         mac = eth_hdr(skb)->h_source;
 544         dest_mac = eth_hdr(skb)->h_dest;
 545
 546         /* Pull the header */
 547         hp = (struct fcoe_hdr *) skb_network_header(skb);
 548         fh = (struct fc_frame_header *) skb_transport_header(skb);
 549         skb_pull(skb, sizeof(struct fcoe_hdr));
 550         fr_len = skb->len - sizeof(struct fcoe_crc_eof);
 551
 552         fp = (struct fc_frame *)skb;
 553         fc_frame_init(fp);
 554         fr_dev(fp) = lport;
 555         fr_sof(fp) = hp->fcoe_sof;
 556         if (skb_copy_bits(skb, fr_len, &crc_eof, sizeof(crc_eof))) {
 557                 kfree_skb(skb);
 558                 return;
 559         }
 560         fr_eof(fp) = crc_eof.fcoe_eof;
 561         fr_crc(fp) = crc_eof.fcoe_crc32;
 562         if (pskb_trim(skb, fr_len)) {
 563                 kfree_skb(skb);
 564                 return;
 565         }
 566
 567         phys_port = lport_priv(lport);
 568         interface = phys_port->priv;
 569         ctlr = bnx2fc_to_ctlr(interface);
 570
 571         fh = fc_frame_header_get(fp);
 572
 573         if (ntoh24(&dest_mac[3]) != ntoh24(fh->fh_d_id)) {
 574                 BNX2FC_HBA_DBG(lport, "FC frame d_id mismatch with MAC %pM.\n",
 575                     dest_mac);
 576                 kfree_skb(skb);
 577                 return;
 578         }
 579
 580         vn_port = fc_vport_id_lookup(lport, ntoh24(fh->fh_d_id));
 581         if (vn_port) {
 582                 port = lport_priv(vn_port);
 583                 if (!ether_addr_equal(port->data_src_addr, dest_mac)) {
 584                         BNX2FC_HBA_DBG(lport, "fpma mismatch\n");
 585                         kfree_skb(skb);
 586                         return;
 587                 }
 588         }
 589         if (ctlr->state) {
 590                 if (!ether_addr_equal(mac, ctlr->dest_addr)) {
 591                         BNX2FC_HBA_DBG(lport, "Wrong source address: mac:%pM dest_addr:%pM.\n",
 592                             mac, ctlr->dest_addr);
 593                         kfree_skb(skb);
 594                         return;
 595                 }
 596         }
 597         if (fh->fh_r_ctl == FC_RCTL_DD_SOL_DATA &&
 598             fh->fh_type == FC_TYPE_FCP) {
 599                 /* Drop FCP data. We dont this in L2 path */
 600                 kfree_skb(skb);
 601                 return;
 602         }
 603         if (fh->fh_r_ctl == FC_RCTL_ELS_REQ &&
 604             fh->fh_type == FC_TYPE_ELS) {
 605                 switch (fc_frame_payload_op(fp)) {
 606                 case ELS_LOGO:
 607                         if (ntoh24(fh->fh_s_id) == FC_FID_FLOGI) {
 608                                 /* drop non-FIP LOGO */
 609                                 kfree_skb(skb);
 610                                 return;
 611                         }
 612                         break;
 613                 }
 614         }
 615
 616         if (fh->fh_r_ctl == FC_RCTL_BA_ABTS) {
 617                 /* Drop incoming ABTS */
 618                 kfree_skb(skb);
 619                 return;
 620         }
 621
 622         /*
 623          * If the destination ID from the frame header does not match what we
 624          * have on record for lport and the search for a NPIV port came up
 625          * empty then this is not addressed to our port so simply drop it.
 626          */
 627         if (lport->port_id != ntoh24(fh->fh_d_id) && !vn_port) {
 628                 BNX2FC_HBA_DBG(lport, "Dropping frame due to destination mismatch: lport->port_id=%x fh->d_id=%x.\n",
 629                     lport->port_id, ntoh24(fh->fh_d_id));
 630                 kfree_skb(skb);
 631                 return;
 632         }
 633
 634         stats = per_cpu_ptr(lport->stats, smp_processor_id());
 635         stats->RxFrames++;
 636         stats->RxWords += fr_len / FCOE_WORD_TO_BYTE;
 637
 638         if (le32_to_cpu(fr_crc(fp)) !=
 639                         ~crc32(~0, skb->data, fr_len)) {
 640                 if (stats->InvalidCRCCount < 5)
 641                         printk(KERN_WARNING PFX "dropping frame with "
 642                                "CRC error\n");
 643                 stats->InvalidCRCCount++;
 644                 kfree_skb(skb);
 645                 return;
 646         }
 647         fc_exch_recv(lport, fp);
 648 }
 649
 650 /**
 651  * bnx2fc_percpu_io_thread - thread per cpu for ios
 652  *
 653  * @arg:        ptr to bnx2fc_percpu_info structure
 654  */
 655 static int bnx2fc_percpu_io_thread(void *arg)
 656 {
 657         struct bnx2fc_percpu_s *p = arg;
 658         struct bnx2fc_work *work, *tmp;
 659         LIST_HEAD(work_list);
 660
 661         set_user_nice(current, MIN_NICE);
 662         set_current_state(TASK_INTERRUPTIBLE);
 663         while (!kthread_should_stop()) {
 664                 schedule();
 665                 spin_lock_bh(&p->fp_work_lock);
 666                 while (!list_empty(&p->work_list)) {
 667                         list_splice_init(&p->work_list, &work_list);
 668                         spin_unlock_bh(&p->fp_work_lock);
 669
 670                         list_for_each_entry_safe(work, tmp, &work_list, list) {
 671                                 list_del_init(&work->list);
 672                                 bnx2fc_process_cq_compl(work->tgt, work->wqe);
 673                                 kfree(work);
 674                         }
 675
 676                         spin_lock_bh(&p->fp_work_lock);
 677                 }
 678                 __set_current_state(TASK_INTERRUPTIBLE);
 679                 spin_unlock_bh(&p->fp_work_lock);
 680         }
 681         __set_current_state(TASK_RUNNING);
 682
 683         return 0;
 684 }
 685
 686 static struct fc_host_statistics *bnx2fc_get_host_stats(struct Scsi_Host *shost)
 687 {
 688         struct fc_host_statistics *bnx2fc_stats;
 689         struct fc_lport *lport = shost_priv(shost);
 690         struct fcoe_port *port = lport_priv(lport);
 691         struct bnx2fc_interface *interface = port->priv;
 692         struct bnx2fc_hba *hba = interface->hba;
 693         struct fcoe_statistics_params *fw_stats;
 694         int rc = 0;
 695
 696         fw_stats = (struct fcoe_statistics_params *)hba->stats_buffer;
 697         if (!fw_stats)
 698                 return NULL;
 699
 700         mutex_lock(&hba->hba_stats_mutex);
 701
 702         bnx2fc_stats = fc_get_host_stats(shost);
 703
 704         init_completion(&hba->stat_req_done);
 705         if (bnx2fc_send_stat_req(hba))
 706                 goto unlock_stats_mutex;
 707         rc = wait_for_completion_timeout(&hba->stat_req_done, (2 * HZ));
 708         if (!rc) {
 709                 BNX2FC_HBA_DBG(lport, "FW stat req timed out\n");
 710                 goto unlock_stats_mutex;
 711         }
 712         BNX2FC_STATS(hba, rx_stat2, fc_crc_cnt);
 713         bnx2fc_stats->invalid_crc_count += hba->bfw_stats.fc_crc_cnt;
 714         BNX2FC_STATS(hba, tx_stat, fcoe_tx_pkt_cnt);
 715         bnx2fc_stats->tx_frames += hba->bfw_stats.fcoe_tx_pkt_cnt;
 716         BNX2FC_STATS(hba, tx_stat, fcoe_tx_byte_cnt);
 717         bnx2fc_stats->tx_words += ((hba->bfw_stats.fcoe_tx_byte_cnt) / 4);
 718         BNX2FC_STATS(hba, rx_stat0, fcoe_rx_pkt_cnt);
 719         bnx2fc_stats->rx_frames += hba->bfw_stats.fcoe_rx_pkt_cnt;
 720         BNX2FC_STATS(hba, rx_stat0, fcoe_rx_byte_cnt);
 721         bnx2fc_stats->rx_words += ((hba->bfw_stats.fcoe_rx_byte_cnt) / 4);
 722
 723         bnx2fc_stats->dumped_frames = 0;
 724         bnx2fc_stats->lip_count = 0;
 725         bnx2fc_stats->nos_count = 0;
 726         bnx2fc_stats->loss_of_sync_count = 0;
 727         bnx2fc_stats->loss_of_signal_count = 0;
 728         bnx2fc_stats->prim_seq_protocol_err_count = 0;
 729
 730         memcpy(&hba->prev_stats, hba->stats_buffer,
 731                sizeof(struct fcoe_statistics_params));
 732
 733 unlock_stats_mutex:
 734         mutex_unlock(&hba->hba_stats_mutex);
 735         return bnx2fc_stats;
 736 }
 737
 738 static int bnx2fc_shost_config(struct fc_lport *lport, struct device *dev)
 739 {
 740         struct fcoe_port *port = lport_priv(lport);
 741         struct bnx2fc_interface *interface = port->priv;
 742         struct bnx2fc_hba *hba = interface->hba;
 743         struct Scsi_Host *shost = lport->host;
 744         int rc = 0;
 745
 746         shost->max_cmd_len = BNX2FC_MAX_CMD_LEN;
 747         shost->max_lun = bnx2fc_max_luns;
 748         shost->max_id = BNX2FC_MAX_FCP_TGT;
 749         shost->max_channel = 0;
 750         if (lport->vport)
 751                 shost->transportt = bnx2fc_vport_xport_template;
 752         else
 753                 shost->transportt = bnx2fc_transport_template;
 754
 755         /* Add the new host to SCSI-ml */
 756         rc = scsi_add_host(lport->host, dev);
 757         if (rc) {
 758                 printk(KERN_ERR PFX "Error on scsi_add_host\n");
 759                 return rc;
 760         }
 761         if (!lport->vport)
 762                 fc_host_max_npiv_vports(lport->host) = USHRT_MAX;
 763         snprintf(fc_host_symbolic_name(lport->host), 256,
 764                  "%s (QLogic %s) v%s over %s",
 765                 BNX2FC_NAME, hba->chip_num, BNX2FC_VERSION,
 766                 interface->netdev->name);
 767
 768         return 0;
 769 }
 770
 771 static int bnx2fc_link_ok(struct fc_lport *lport)
 772 {
 773         struct fcoe_port *port = lport_priv(lport);
 774         struct bnx2fc_interface *interface = port->priv;
 775         struct bnx2fc_hba *hba = interface->hba;
 776         struct net_device *dev = hba->phys_dev;
 777         int rc = 0;
 778
 779         if ((dev->flags & IFF_UP) && netif_carrier_ok(dev))
 780                 clear_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
 781         else {
 782                 set_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
 783                 rc = -1;
 784         }
 785         return rc;
 786 }
 787
 788 /**
 789  * bnx2fc_get_link_state - get network link state
 790  *
 791  * @hba:        adapter instance pointer
 792  *
 793  * updates adapter structure flag based on netdev state
 794  */
 795 void bnx2fc_get_link_state(struct bnx2fc_hba *hba)
 796 {
 797         if (test_bit(__LINK_STATE_NOCARRIER, &hba->phys_dev->state))
 798                 set_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
 799         else
 800                 clear_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
 801 }
 802
 803 static int bnx2fc_net_config(struct fc_lport *lport, struct net_device *netdev)
 804 {
 805         struct bnx2fc_hba *hba;
 806         struct bnx2fc_interface *interface;
 807         struct fcoe_ctlr *ctlr;
 808         struct fcoe_port *port;
 809         u64 wwnn, wwpn;
 810
 811         port = lport_priv(lport);
 812         interface = port->priv;
 813         ctlr = bnx2fc_to_ctlr(interface);
 814         hba = interface->hba;
 815
 816         /* require support for get_pauseparam ethtool op. */
 817         if (!hba->phys_dev->ethtool_ops ||
 818             !hba->phys_dev->ethtool_ops->get_pauseparam)
 819                 return -EOPNOTSUPP;
 820
 821         if (fc_set_mfs(lport, BNX2FC_MFS))
 822                 return -EINVAL;
 823
 824         skb_queue_head_init(&port->fcoe_pending_queue);
 825         port->fcoe_pending_queue_active = 0;
 826         timer_setup(&port->timer, fcoe_queue_timer, 0);
 827
 828         fcoe_link_speed_update(lport);
 829
 830         if (!lport->vport) {
 831                 if (fcoe_get_wwn(netdev, &wwnn, NETDEV_FCOE_WWNN))
 832                         wwnn = fcoe_wwn_from_mac(ctlr->ctl_src_addr,
 833                                                  1, 0);
 834                 BNX2FC_HBA_DBG(lport, "WWNN = 0x%llx\n", wwnn);
 835                 fc_set_wwnn(lport, wwnn);
 836
 837                 if (fcoe_get_wwn(netdev, &wwpn, NETDEV_FCOE_WWPN))
 838                         wwpn = fcoe_wwn_from_mac(ctlr->ctl_src_addr,
 839                                                  2, 0);
 840
 841                 BNX2FC_HBA_DBG(lport, "WWPN = 0x%llx\n", wwpn);
 842                 fc_set_wwpn(lport, wwpn);
 843         }
 844
 845         return 0;
 846 }
 847
 848 static void bnx2fc_destroy_timer(struct timer_list *t)
 849 {
 850         struct bnx2fc_hba *hba = from_timer(hba, t, destroy_timer);
 851
 852         printk(KERN_ERR PFX "ERROR:bnx2fc_destroy_timer - "
 853                "Destroy compl not received!!\n");
 854         set_bit(BNX2FC_FLAG_DESTROY_CMPL, &hba->flags);
 855         wake_up_interruptible(&hba->destroy_wait);
 856 }
 857
 858 /**
 859  * bnx2fc_indicate_netevent - Generic netdev event handler
 860  *
 861  * @context:    adapter structure pointer
 862  * @event:      event type
 863  * @vlan_id:    vlan id - associated vlan id with this event
 864  *
 865  * Handles NETDEV_UP, NETDEV_DOWN, NETDEV_GOING_DOWN,NETDEV_CHANGE and
 866  * NETDEV_CHANGE_MTU events. Handle NETDEV_UNREGISTER only for vlans.
 867  */
 868 static void bnx2fc_indicate_netevent(void *context, unsigned long event,
 869                                      u16 vlan_id)
 870 {
 871         struct bnx2fc_hba *hba = (struct bnx2fc_hba *)context;
 872         struct fcoe_ctlr_device *cdev;
 873         struct fc_lport *lport;
 874         struct fc_lport *vport;
 875         struct bnx2fc_interface *interface, *tmp;
 876         struct fcoe_ctlr *ctlr;
 877         int wait_for_upload = 0;
 878         u32 link_possible = 1;
 879
 880         if (vlan_id != 0 && event != NETDEV_UNREGISTER)
 881                 return;
 882
 883         switch (event) {
 884         case NETDEV_UP:
 885                 if (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state))
 886                         printk(KERN_ERR "indicate_netevent: "\
 887                                         "hba is not UP!!\n");
 888                 break;
 889
 890         case NETDEV_DOWN:
 891                 clear_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state);
 892                 clear_bit(ADAPTER_STATE_UP, &hba->adapter_state);
 893                 link_possible = 0;
 894                 break;
 895
 896         case NETDEV_GOING_DOWN:
 897                 set_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state);
 898                 link_possible = 0;
 899                 break;
 900
 901         case NETDEV_CHANGE:
 902                 break;
 903
 904         case NETDEV_UNREGISTER:
 905                 if (!vlan_id)
 906                         return;
 907                 mutex_lock(&bnx2fc_dev_lock);
 908                 list_for_each_entry_safe(interface, tmp, &if_list, list) {
 909                         if (interface->hba == hba &&
 910                             interface->vlan_id == (vlan_id & VLAN_VID_MASK))
 911                                 __bnx2fc_destroy(interface);
 912                 }
 913                 mutex_unlock(&bnx2fc_dev_lock);
 914
 915                 /* Ensure ALL destroy work has been completed before return */
 916                 flush_workqueue(bnx2fc_wq);
 917                 return;
 918
 919         default:
 920                 return;
 921         }
 922
 923         mutex_lock(&bnx2fc_dev_lock);
 924         list_for_each_entry(interface, &if_list, list) {
 925
 926                 if (interface->hba != hba)
 927                         continue;
 928
 929                 ctlr = bnx2fc_to_ctlr(interface);
 930                 lport = ctlr->lp;
 931                 BNX2FC_HBA_DBG(lport, "netevent handler - event=%s %ld\n",
 932                                 interface->netdev->name, event);
 933
 934                 fcoe_link_speed_update(lport);
 935
 936                 cdev = fcoe_ctlr_to_ctlr_dev(ctlr);
 937
 938                 if (link_possible && !bnx2fc_link_ok(lport)) {
 939                         switch (cdev->enabled) {
 940                         case FCOE_CTLR_DISABLED:
 941                                 pr_info("Link up while interface is disabled.\n");
 942                                 break;
 943                         case FCOE_CTLR_ENABLED:
 944                         case FCOE_CTLR_UNUSED:
 945                                 /* Reset max recv frame size to default */
 946                                 fc_set_mfs(lport, BNX2FC_MFS);
 947                                 /*
 948                                  * ctlr link up will only be handled during
 949                                  * enable to avoid sending discovery
 950                                  * solicitation on a stale vlan
 951                                  */
 952                                 if (interface->enabled)
 953                                         fcoe_ctlr_link_up(ctlr);
 954                         };
 955                 } else if (fcoe_ctlr_link_down(ctlr)) {
 956                         switch (cdev->enabled) {
 957                         case FCOE_CTLR_DISABLED:
 958                                 pr_info("Link down while interface is disabled.\n");
 959                                 break;
 960                         case FCOE_CTLR_ENABLED:
 961                         case FCOE_CTLR_UNUSED:
 962                                 mutex_lock(&lport->lp_mutex);
 963                                 list_for_each_entry(vport, &lport->vports, list)
 964                                         fc_host_port_type(vport->host) =
 965                                         FC_PORTTYPE_UNKNOWN;
 966                                 mutex_unlock(&lport->lp_mutex);
 967                                 fc_host_port_type(lport->host) =
 968                                         FC_PORTTYPE_UNKNOWN;
 969                                 per_cpu_ptr(lport->stats,
 970                                             get_cpu())->LinkFailureCount++;
 971                                 put_cpu();
 972                                 fcoe_clean_pending_queue(lport);
 973                                 wait_for_upload = 1;
 974                         };
 975                 }
 976         }
 977         mutex_unlock(&bnx2fc_dev_lock);
 978
 979         if (wait_for_upload) {
 980                 clear_bit(ADAPTER_STATE_READY, &hba->adapter_state);
 981                 init_waitqueue_head(&hba->shutdown_wait);
 982                 BNX2FC_MISC_DBG("indicate_netevent "
 983                                 "num_ofld_sess = %d\n",
 984                                 hba->num_ofld_sess);
 985                 hba->wait_for_link_down = 1;
 986                 wait_event_interruptible(hba->shutdown_wait,
 987                                          (hba->num_ofld_sess == 0));
 988                 BNX2FC_MISC_DBG("wakeup - num_ofld_sess = %d\n",
 989                                 hba->num_ofld_sess);
 990                 hba->wait_for_link_down = 0;
 991
 992                 if (signal_pending(current))
 993                         flush_signals(current);
 994         }
 995 }
 996
 997 static int bnx2fc_libfc_config(struct fc_lport *lport)
 998 {
 999
1000         /* Set the function pointers set by bnx2fc driver */
1001         memcpy(&lport->tt, &bnx2fc_libfc_fcn_templ,
1002                 sizeof(struct libfc_function_template));
1003         fc_elsct_init(lport);
1004         fc_exch_init(lport);
1005         fc_disc_init(lport);
1006         fc_disc_config(lport, lport);
1007         return 0;
1008 }
1009
1010 static int bnx2fc_em_config(struct fc_lport *lport, struct bnx2fc_hba *hba)
1011 {
1012         int fcoe_min_xid, fcoe_max_xid;
1013
1014         fcoe_min_xid = hba->max_xid + 1;
1015         if (nr_cpu_ids <= 2)
1016                 fcoe_max_xid = hba->max_xid + FCOE_XIDS_PER_CPU_OFFSET;
1017         else
1018                 fcoe_max_xid = hba->max_xid + FCOE_MAX_XID_OFFSET;
1019         if (!fc_exch_mgr_alloc(lport, FC_CLASS_3, fcoe_min_xid,
1020                                fcoe_max_xid, NULL)) {
1021                 printk(KERN_ERR PFX "em_config:fc_exch_mgr_alloc failed\n");
1022                 return -ENOMEM;
1023         }
1024
1025         return 0;
1026 }
1027
1028 static int bnx2fc_lport_config(struct fc_lport *lport)
1029 {
1030         lport->link_up = 0;
1031         lport->qfull = 0;
1032         lport->max_retry_count = BNX2FC_MAX_RETRY_CNT;
1033         lport->max_rport_retry_count = BNX2FC_MAX_RPORT_RETRY_CNT;
1034         lport->e_d_tov = 2 * 1000;
1035         lport->r_a_tov = 10 * 1000;
1036
1037         lport->service_params = (FCP_SPPF_INIT_FCN | FCP_SPPF_RD_XRDY_DIS |
1038                                 FCP_SPPF_RETRY | FCP_SPPF_CONF_COMPL);
1039         lport->does_npiv = 1;
1040
1041         memset(&lport->rnid_gen, 0, sizeof(struct fc_els_rnid_gen));
1042         lport->rnid_gen.rnid_atype = BNX2FC_RNID_HBA;
1043
1044         /* alloc stats structure */
1045         if (fc_lport_init_stats(lport))
1046                 return -ENOMEM;
1047
1048         /* Finish fc_lport configuration */
1049         fc_lport_config(lport);
1050
1051         return 0;
1052 }
1053
1054 /**
1055  * bnx2fc_fip_recv - handle a received FIP frame.
1056  *
1057  * @skb: the received skb
1058  * @dev: associated &net_device
1059  * @ptype: the &packet_type structure which was used to register this handler.
1060  * @orig_dev: original receive &net_device, in case @ dev is a bond.
1061  *
1062  * Returns: 0 for success
1063  */
1064 static int bnx2fc_fip_recv(struct sk_buff *skb, struct net_device *dev,
1065                            struct packet_type *ptype,
1066                            struct net_device *orig_dev)
1067 {
1068         struct bnx2fc_interface *interface;
1069         struct fcoe_ctlr *ctlr;
1070         interface = container_of(ptype, struct bnx2fc_interface,
1071                                  fip_packet_type);
1072         ctlr = bnx2fc_to_ctlr(interface);
1073         fcoe_ctlr_recv(ctlr, skb);
1074         return 0;
1075 }
1076
1077 /**
1078  * bnx2fc_update_src_mac - Update Ethernet MAC filters.
1079  *
1080  * @fip: FCoE controller.
1081  * @old: Unicast MAC address to delete if the MAC is non-zero.
1082  * @new: Unicast MAC address to add.
1083  *
1084  * Remove any previously-set unicast MAC filter.
1085  * Add secondary FCoE MAC address filter for our OUI.
1086  */
1087 static void bnx2fc_update_src_mac(struct fc_lport *lport, u8 *addr)
1088 {
1089         struct fcoe_port *port = lport_priv(lport);
1090
1091         memcpy(port->data_src_addr, addr, ETH_ALEN);
1092 }
1093
1094 /**
1095  * bnx2fc_get_src_mac - return the ethernet source address for an lport
1096  *
1097  * @lport: libfc port
1098  */
1099 static u8 *bnx2fc_get_src_mac(struct fc_lport *lport)
1100 {
1101         struct fcoe_port *port;
1102
1103         port = (struct fcoe_port *)lport_priv(lport);
1104         return port->data_src_addr;
1105 }
1106
1107 /**
1108  * bnx2fc_fip_send - send an Ethernet-encapsulated FIP frame.
1109  *
1110  * @fip: FCoE controller.
1111  * @skb: FIP Packet.
1112  */
1113 static void bnx2fc_fip_send(struct fcoe_ctlr *fip, struct sk_buff *skb)
1114 {
1115         struct fip_header *fiph;
1116         struct ethhdr *eth_hdr;
1117         u16 op;
1118         u8 sub;
1119
1120         fiph = (struct fip_header *) ((void *)skb->data + 2 * ETH_ALEN + 2);
1121         eth_hdr = (struct ethhdr *)skb_mac_header(skb);
1122         op = ntohs(fiph->fip_op);
1123         sub = fiph->fip_subcode;
1124
1125         if (op == FIP_OP_CTRL && sub == FIP_SC_SOL && bnx2fc_log_fka)
1126                 BNX2FC_MISC_DBG("Sending FKA from %pM to %pM.\n",
1127                     eth_hdr->h_source, eth_hdr->h_dest);
1128
1129         skb->dev = bnx2fc_from_ctlr(fip)->netdev;
1130         dev_queue_xmit(skb);
1131 }
1132
1133 static int bnx2fc_vport_create(struct fc_vport *vport, bool disabled)
1134 {
1135         struct Scsi_Host *shost = vport_to_shost(vport);
1136         struct fc_lport *n_port = shost_priv(shost);
1137         struct fcoe_port *port = lport_priv(n_port);
1138         struct bnx2fc_interface *interface = port->priv;
1139         struct net_device *netdev = interface->netdev;
1140         struct fc_lport *vn_port;
1141         int rc;
1142         char buf[32];
1143
1144         rc = fcoe_validate_vport_create(vport);
1145         if (rc) {
1146                 fcoe_wwn_to_str(vport->port_name, buf, sizeof(buf));
1147                 printk(KERN_ERR PFX "Failed to create vport, "
1148                        "WWPN (0x%s) already exists\n",
1149                        buf);
1150                 return rc;
1151         }
1152
1153         if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &interface->hba->flags)) {
1154                 printk(KERN_ERR PFX "vn ports cannot be created on"
1155                         "this interface\n");
1156                 return -EIO;
1157         }
1158         rtnl_lock();
1159         mutex_lock(&bnx2fc_dev_lock);
1160         vn_port = bnx2fc_if_create(interface, &vport->dev, 1);
1161         mutex_unlock(&bnx2fc_dev_lock);
1162         rtnl_unlock();
1163
1164         if (!vn_port) {
1165                 printk(KERN_ERR PFX "bnx2fc_vport_create (%s) failed\n",
1166                         netdev->name);
1167                 return -EIO;
1168         }
1169
1170         if (bnx2fc_devloss_tmo)
1171                 fc_host_dev_loss_tmo(vn_port->host) = bnx2fc_devloss_tmo;
1172
1173         if (disabled) {
1174                 fc_vport_set_state(vport, FC_VPORT_DISABLED);
1175         } else {
1176                 vn_port->boot_time = jiffies;
1177                 fc_lport_init(vn_port);
1178                 fc_fabric_login(vn_port);
1179                 fc_vport_setlink(vn_port);
1180         }
1181         return 0;
1182 }
1183
1184 static void bnx2fc_free_vport(struct bnx2fc_hba *hba, struct fc_lport *lport)
1185 {
1186         struct bnx2fc_lport *blport, *tmp;
1187
1188         spin_lock_bh(&hba->hba_lock);
1189         list_for_each_entry_safe(blport, tmp, &hba->vports, list) {
1190                 if (blport->lport == lport) {
1191                         list_del(&blport->list);
1192                         kfree(blport);
1193                 }
1194         }
1195         spin_unlock_bh(&hba->hba_lock);
1196 }
1197
1198 static int bnx2fc_vport_destroy(struct fc_vport *vport)
1199 {
1200         struct Scsi_Host *shost = vport_to_shost(vport);
1201         struct fc_lport *n_port = shost_priv(shost);
1202         struct fc_lport *vn_port = vport->dd_data;
1203         struct fcoe_port *port = lport_priv(vn_port);
1204         struct bnx2fc_interface *interface = port->priv;
1205         struct fc_lport *v_port;
1206         bool found = false;
1207
1208         mutex_lock(&n_port->lp_mutex);
1209         list_for_each_entry(v_port, &n_port->vports, list)
1210                 if (v_port->vport == vport) {
1211                         found = true;
1212                         break;
1213                 }
1214
1215         if (!found) {
1216                 mutex_unlock(&n_port->lp_mutex);
1217                 return -ENOENT;
1218         }
1219         list_del(&vn_port->list);
1220         mutex_unlock(&n_port->lp_mutex);
1221         bnx2fc_free_vport(interface->hba, port->lport);
1222         bnx2fc_port_shutdown(port->lport);
1223         bnx2fc_interface_put(interface);
1224         queue_work(bnx2fc_wq, &port->destroy_work);
1225         return 0;
1226 }
1227
1228 static int bnx2fc_vport_disable(struct fc_vport *vport, bool disable)
1229 {
1230         struct fc_lport *lport = vport->dd_data;
1231
1232         if (disable) {
1233                 fc_vport_set_state(vport, FC_VPORT_DISABLED);
1234                 fc_fabric_logoff(lport);
1235         } else {
1236                 lport->boot_time = jiffies;
1237                 fc_fabric_login(lport);
1238                 fc_vport_setlink(lport);
1239         }
1240         return 0;
1241 }
1242
1243
1244 static int bnx2fc_interface_setup(struct bnx2fc_interface *interface)
1245 {
1246         struct net_device *netdev = interface->netdev;
1247         struct net_device *physdev = interface->hba->phys_dev;
1248         struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface);
1249         struct netdev_hw_addr *ha;
1250         int sel_san_mac = 0;
1251
1252         /* setup Source MAC Address */
1253         rcu_read_lock();
1254         for_each_dev_addr(physdev, ha) {
1255                 BNX2FC_MISC_DBG("net_config: ha->type = %d, fip_mac = ",
1256                                 ha->type);
1257                 printk(KERN_INFO "%2x:%2x:%2x:%2x:%2x:%2x\n", ha->addr[0],
1258                                 ha->addr[1], ha->addr[2], ha->addr[3],
1259                                 ha->addr[4], ha->addr[5]);
1260
1261                 if ((ha->type == NETDEV_HW_ADDR_T_SAN) &&
1262                     (is_valid_ether_addr(ha->addr))) {
1263                         memcpy(ctlr->ctl_src_addr, ha->addr,
1264                                ETH_ALEN);
1265                         sel_san_mac = 1;
1266                         BNX2FC_MISC_DBG("Found SAN MAC\n");
1267                 }
1268         }
1269         rcu_read_unlock();
1270
1271         if (!sel_san_mac)
1272                 return -ENODEV;
1273
1274         interface->fip_packet_type.func = bnx2fc_fip_recv;
1275         interface->fip_packet_type.type = htons(ETH_P_FIP);
1276         interface->fip_packet_type.dev = netdev;
1277         dev_add_pack(&interface->fip_packet_type);
1278
1279         interface->fcoe_packet_type.func = bnx2fc_rcv;
1280         interface->fcoe_packet_type.type = __constant_htons(ETH_P_FCOE);
1281         interface->fcoe_packet_type.dev = netdev;
1282         dev_add_pack(&interface->fcoe_packet_type);
1283
1284         return 0;
1285 }
1286
1287 static int bnx2fc_attach_transport(void)
1288 {
1289         bnx2fc_transport_template =
1290                 fc_attach_transport(&bnx2fc_transport_function);
1291
1292         if (bnx2fc_transport_template == NULL) {
1293                 printk(KERN_ERR PFX "Failed to attach FC transport\n");
1294                 return -ENODEV;
1295         }
1296
1297         bnx2fc_vport_xport_template =
1298                 fc_attach_transport(&bnx2fc_vport_xport_function);
1299         if (bnx2fc_vport_xport_template == NULL) {
1300                 printk(KERN_ERR PFX
1301                        "Failed to attach FC transport for vport\n");
1302                 fc_release_transport(bnx2fc_transport_template);
1303                 bnx2fc_transport_template = NULL;
1304                 return -ENODEV;
1305         }
1306         return 0;
1307 }
1308 static void bnx2fc_release_transport(void)
1309 {
1310         fc_release_transport(bnx2fc_transport_template);
1311         fc_release_transport(bnx2fc_vport_xport_template);
1312         bnx2fc_transport_template = NULL;
1313         bnx2fc_vport_xport_template = NULL;
1314 }
1315
1316 static void bnx2fc_interface_release(struct kref *kref)
1317 {
1318         struct fcoe_ctlr_device *ctlr_dev;
1319         struct bnx2fc_interface *interface;
1320         struct fcoe_ctlr *ctlr;
1321         struct net_device *netdev;
1322
1323         interface = container_of(kref, struct bnx2fc_interface, kref);
1324         BNX2FC_MISC_DBG("Interface is being released\n");
1325
1326         ctlr = bnx2fc_to_ctlr(interface);
1327         ctlr_dev = fcoe_ctlr_to_ctlr_dev(ctlr);
1328         netdev = interface->netdev;
1329
1330         /* tear-down FIP controller */
1331         if (test_and_clear_bit(BNX2FC_CTLR_INIT_DONE, &interface->if_flags))
1332                 fcoe_ctlr_destroy(ctlr);
1333
1334         fcoe_ctlr_device_delete(ctlr_dev);
1335
1336         dev_put(netdev);
1337         module_put(THIS_MODULE);
1338 }
1339
1340 static inline void bnx2fc_interface_get(struct bnx2fc_interface *interface)
1341 {
1342         kref_get(&interface->kref);
1343 }
1344
1345 static inline void bnx2fc_interface_put(struct bnx2fc_interface *interface)
1346 {
1347         kref_put(&interface->kref, bnx2fc_interface_release);
1348 }
1349 static void bnx2fc_hba_destroy(struct bnx2fc_hba *hba)
1350 {
1351         /* Free the command manager */
1352         if (hba->cmd_mgr) {
1353                 bnx2fc_cmd_mgr_free(hba->cmd_mgr);
1354                 hba->cmd_mgr = NULL;
1355         }
1356         kfree(hba->tgt_ofld_list);
1357         bnx2fc_unbind_pcidev(hba);
1358         kfree(hba);
1359 }
1360
1361 /**
1362  * bnx2fc_hba_create - create a new bnx2fc hba
1363  *
1364  * @cnic:       pointer to cnic device
1365  *
1366  * Creates a new FCoE hba on the given device.
1367  *
1368  */
1369 static struct bnx2fc_hba *bnx2fc_hba_create(struct cnic_dev *cnic)
1370 {
1371         struct bnx2fc_hba *hba;
1372         struct fcoe_capabilities *fcoe_cap;
1373         int rc;
1374
1375         hba = kzalloc(sizeof(*hba), GFP_KERNEL);
1376         if (!hba) {
1377                 printk(KERN_ERR PFX "Unable to allocate hba structure\n");
1378                 return NULL;
1379         }
1380         spin_lock_init(&hba->hba_lock);
1381         mutex_init(&hba->hba_mutex);
1382         mutex_init(&hba->hba_stats_mutex);
1383
1384         hba->cnic = cnic;
1385
1386         hba->max_tasks = cnic->max_fcoe_exchanges;
1387         hba->elstm_xids = (hba->max_tasks / 2);
1388         hba->max_outstanding_cmds = hba->elstm_xids;
1389         hba->max_xid = (hba->max_tasks - 1);
1390
1391         rc = bnx2fc_bind_pcidev(hba);
1392         if (rc) {
1393                 printk(KERN_ERR PFX "create_adapter:  bind error\n");
1394                 goto bind_err;
1395         }
1396         hba->phys_dev = cnic->netdev;
1397         hba->next_conn_id = 0;
1398
1399         hba->tgt_ofld_list =
1400                 kcalloc(BNX2FC_NUM_MAX_SESS, sizeof(struct bnx2fc_rport *),
1401                         GFP_KERNEL);
1402         if (!hba->tgt_ofld_list) {
1403                 printk(KERN_ERR PFX "Unable to allocate tgt offload list\n");
1404                 goto tgtofld_err;
1405         }
1406
1407         hba->num_ofld_sess = 0;
1408
1409         hba->cmd_mgr = bnx2fc_cmd_mgr_alloc(hba);
1410         if (!hba->cmd_mgr) {
1411                 printk(KERN_ERR PFX "em_config:bnx2fc_cmd_mgr_alloc failed\n");
1412                 goto cmgr_err;
1413         }
1414         fcoe_cap = &hba->fcoe_cap;
1415
1416         fcoe_cap->capability1 = BNX2FC_TM_MAX_SQES <<
1417                                         FCOE_IOS_PER_CONNECTION_SHIFT;
1418         fcoe_cap->capability1 |= BNX2FC_NUM_MAX_SESS <<
1419                                         FCOE_LOGINS_PER_PORT_SHIFT;
1420         fcoe_cap->capability2 = hba->max_outstanding_cmds <<
1421                                         FCOE_NUMBER_OF_EXCHANGES_SHIFT;
1422         fcoe_cap->capability2 |= BNX2FC_MAX_NPIV <<
1423                                         FCOE_NPIV_WWN_PER_PORT_SHIFT;
1424         fcoe_cap->capability3 = BNX2FC_NUM_MAX_SESS <<
1425                                         FCOE_TARGETS_SUPPORTED_SHIFT;
1426         fcoe_cap->capability3 |= hba->max_outstanding_cmds <<
1427                                         FCOE_OUTSTANDING_COMMANDS_SHIFT;
1428         fcoe_cap->capability4 = FCOE_CAPABILITY4_STATEFUL;
1429
1430         init_waitqueue_head(&hba->shutdown_wait);
1431         init_waitqueue_head(&hba->destroy_wait);
1432         INIT_LIST_HEAD(&hba->vports);
1433
1434         return hba;
1435
1436 cmgr_err:
1437         kfree(hba->tgt_ofld_list);
1438 tgtofld_err:
1439         bnx2fc_unbind_pcidev(hba);
1440 bind_err:
1441         kfree(hba);
1442         return NULL;
1443 }
1444
1445 static struct bnx2fc_interface *
1446 bnx2fc_interface_create(struct bnx2fc_hba *hba,
1447                         struct net_device *netdev,
1448                         enum fip_state fip_mode)
1449 {
1450         struct fcoe_ctlr_device *ctlr_dev;
1451         struct bnx2fc_interface *interface;
1452         struct fcoe_ctlr *ctlr;
1453         int size;
1454         int rc = 0;
1455
1456         size = (sizeof(*interface) + sizeof(struct fcoe_ctlr));
1457         ctlr_dev = fcoe_ctlr_device_add(&netdev->dev, &bnx2fc_fcoe_sysfs_templ,
1458                                          size);
1459         if (!ctlr_dev) {
1460                 printk(KERN_ERR PFX "Unable to allocate interface structure\n");
1461                 return NULL;
1462         }
1463         ctlr = fcoe_ctlr_device_priv(ctlr_dev);
1464         ctlr->cdev = ctlr_dev;
1465         interface = fcoe_ctlr_priv(ctlr);
1466         dev_hold(netdev);
1467         kref_init(&interface->kref);
1468         interface->hba = hba;
1469         interface->netdev = netdev;
1470
1471         /* Initialize FIP */
1472         fcoe_ctlr_init(ctlr, fip_mode);
1473         ctlr->send = bnx2fc_fip_send;
1474         ctlr->update_mac = bnx2fc_update_src_mac;
1475         ctlr->get_src_addr = bnx2fc_get_src_mac;
1476         set_bit(BNX2FC_CTLR_INIT_DONE, &interface->if_flags);
1477
1478         rc = bnx2fc_interface_setup(interface);
1479         if (!rc)
1480                 return interface;
1481
1482         fcoe_ctlr_destroy(ctlr);
1483         dev_put(netdev);
1484         fcoe_ctlr_device_delete(ctlr_dev);
1485         return NULL;
1486 }
1487
1488 /**
1489  * bnx2fc_if_create - Create FCoE instance on a given interface
1490  *
1491  * @interface:  FCoE interface to create a local port on
1492  * @parent:     Device pointer to be the parent in sysfs for the SCSI host
1493  * @npiv:       Indicates if the port is vport or not
1494  *
1495  * Creates a fc_lport instance and a Scsi_Host instance and configure them.
1496  *
1497  * Returns:     Allocated fc_lport or an error pointer
1498  */
1499 static struct fc_lport *bnx2fc_if_create(struct bnx2fc_interface *interface,
1500                                   struct device *parent, int npiv)
1501 {
1502         struct fcoe_ctlr        *ctlr = bnx2fc_to_ctlr(interface);
1503         struct fc_lport         *lport, *n_port;
1504         struct fcoe_port        *port;
1505         struct Scsi_Host        *shost;
1506         struct fc_vport         *vport = dev_to_vport(parent);
1507         struct bnx2fc_lport     *blport;
1508         struct bnx2fc_hba       *hba = interface->hba;
1509         int                     rc = 0;
1510
1511         blport = kzalloc(sizeof(struct bnx2fc_lport), GFP_KERNEL);
1512         if (!blport) {
1513                 BNX2FC_HBA_DBG(ctlr->lp, "Unable to alloc blport\n");
1514                 return NULL;
1515         }
1516
1517         /* Allocate Scsi_Host structure */
1518         bnx2fc_shost_template.can_queue = hba->max_outstanding_cmds;
1519         if (!npiv)
1520                 lport = libfc_host_alloc(&bnx2fc_shost_template, sizeof(*port));
1521         else
1522                 lport = libfc_vport_create(vport, sizeof(*port));
1523
1524         if (!lport) {
1525                 printk(KERN_ERR PFX "could not allocate scsi host structure\n");
1526                 goto free_blport;
1527         }
1528         shost = lport->host;
1529         port = lport_priv(lport);
1530         port->lport = lport;
1531         port->priv = interface;
1532         port->get_netdev = bnx2fc_netdev;
1533         INIT_WORK(&port->destroy_work, bnx2fc_destroy_work);
1534
1535         /* Configure fcoe_port */
1536         rc = bnx2fc_lport_config(lport);
1537         if (rc)
1538                 goto lp_config_err;
1539
1540         if (npiv) {
1541                 printk(KERN_ERR PFX "Setting vport names, 0x%llX 0x%llX\n",
1542                         vport->node_name, vport->port_name);
1543                 fc_set_wwnn(lport, vport->node_name);
1544                 fc_set_wwpn(lport, vport->port_name);
1545         }
1546         /* Configure netdev and networking properties of the lport */
1547         rc = bnx2fc_net_config(lport, interface->netdev);
1548         if (rc) {
1549                 printk(KERN_ERR PFX "Error on bnx2fc_net_config\n");
1550                 goto lp_config_err;
1551         }
1552
1553         rc = bnx2fc_shost_config(lport, parent);
1554         if (rc) {
1555                 printk(KERN_ERR PFX "Couldn't configure shost for %s\n",
1556                         interface->netdev->name);
1557                 goto lp_config_err;
1558         }
1559
1560         /* Initialize the libfc library */
1561         rc = bnx2fc_libfc_config(lport);
1562         if (rc) {
1563                 printk(KERN_ERR PFX "Couldn't configure libfc\n");
1564                 goto shost_err;
1565         }
1566         fc_host_port_type(lport->host) = FC_PORTTYPE_UNKNOWN;
1567
1568         if (bnx2fc_devloss_tmo)
1569                 fc_host_dev_loss_tmo(shost) = bnx2fc_devloss_tmo;
1570
1571         /* Allocate exchange manager */
1572         if (!npiv)
1573                 rc = bnx2fc_em_config(lport, hba);
1574         else {
1575                 shost = vport_to_shost(vport);
1576                 n_port = shost_priv(shost);
1577                 rc = fc_exch_mgr_list_clone(n_port, lport);
1578         }
1579
1580         if (rc) {
1581                 printk(KERN_ERR PFX "Error on bnx2fc_em_config\n");
1582                 goto shost_err;
1583         }
1584
1585         bnx2fc_interface_get(interface);
1586
1587         spin_lock_bh(&hba->hba_lock);
1588         blport->lport = lport;
1589         list_add_tail(&blport->list, &hba->vports);
1590         spin_unlock_bh(&hba->hba_lock);
1591
1592         return lport;
1593
1594 shost_err:
1595         scsi_remove_host(shost);
1596 lp_config_err:
1597         scsi_host_put(lport->host);
1598 free_blport:
1599         kfree(blport);
1600         return NULL;
1601 }
1602
1603 static void bnx2fc_net_cleanup(struct bnx2fc_interface *interface)
1604 {
1605         /* Dont listen for Ethernet packets anymore */
1606         __dev_remove_pack(&interface->fcoe_packet_type);
1607         __dev_remove_pack(&interface->fip_packet_type);
1608         synchronize_net();
1609 }
1610
1611 static void bnx2fc_interface_cleanup(struct bnx2fc_interface *interface)
1612 {
1613         struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface);
1614         struct fc_lport *lport = ctlr->lp;
1615         struct fcoe_port *port = lport_priv(lport);
1616         struct bnx2fc_hba *hba = interface->hba;
1617
1618         /* Stop the transmit retry timer */
1619         del_timer_sync(&port->timer);
1620
1621         /* Free existing transmit skbs */
1622         fcoe_clean_pending_queue(lport);
1623
1624         bnx2fc_net_cleanup(interface);
1625
1626         bnx2fc_free_vport(hba, lport);
1627 }
1628
1629 static void bnx2fc_if_destroy(struct fc_lport *lport)
1630 {
1631
1632         /* Free queued packets for the receive thread */
1633         bnx2fc_clean_rx_queue(lport);
1634
1635         /* Detach from scsi-ml */
1636         fc_remove_host(lport->host);
1637         scsi_remove_host(lport->host);
1638
1639         /*
1640          * Note that only the physical lport will have the exchange manager.
1641          * for vports, this function is NOP
1642          */
1643         fc_exch_mgr_free(lport);
1644
1645         /* Free memory used by statistical counters */
1646         fc_lport_free_stats(lport);
1647
1648         /* Release Scsi_Host */
1649         scsi_host_put(lport->host);
1650 }
1651
1652 static void __bnx2fc_destroy(struct bnx2fc_interface *interface)
1653 {
1654         struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface);
1655         struct fc_lport *lport = ctlr->lp;
1656         struct fcoe_port *port = lport_priv(lport);
1657
1658         bnx2fc_interface_cleanup(interface);
1659         bnx2fc_stop(interface);
1660         list_del(&interface->list);
1661         bnx2fc_interface_put(interface);
1662         queue_work(bnx2fc_wq, &port->destroy_work);
1663 }
1664
1665 /**
1666  * bnx2fc_destroy - Destroy a bnx2fc FCoE interface
1667  *
1668  * @buffer: The name of the Ethernet interface to be destroyed
1669  * @kp:     The associated kernel parameter
1670  *
1671  * Called from sysfs.
1672  *
1673  * Returns: 0 for success
1674  */
1675 static int bnx2fc_destroy(struct net_device *netdev)
1676 {
1677         struct bnx2fc_interface *interface = NULL;
1678         struct workqueue_struct *timer_work_queue;
1679         struct fcoe_ctlr *ctlr;
1680         int rc = 0;
1681
1682         rtnl_lock();
1683         mutex_lock(&bnx2fc_dev_lock);
1684
1685         interface = bnx2fc_interface_lookup(netdev);
1686         ctlr = bnx2fc_to_ctlr(interface);
1687         if (!interface || !ctlr->lp) {
1688                 rc = -ENODEV;
1689                 printk(KERN_ERR PFX "bnx2fc_destroy: interface or lport not found\n");
1690                 goto netdev_err;
1691         }
1692
1693         timer_work_queue = interface->timer_work_queue;
1694         __bnx2fc_destroy(interface);
1695         destroy_workqueue(timer_work_queue);
1696
1697 netdev_err:
1698         mutex_unlock(&bnx2fc_dev_lock);
1699         rtnl_unlock();
1700         return rc;
1701 }
1702
1703 static void bnx2fc_destroy_work(struct work_struct *work)
1704 {
1705         struct fcoe_port *port;
1706         struct fc_lport *lport;
1707
1708         port = container_of(work, struct fcoe_port, destroy_work);
1709         lport = port->lport;
1710
1711         BNX2FC_HBA_DBG(lport, "Entered bnx2fc_destroy_work\n");
1712
1713         bnx2fc_if_destroy(lport);
1714 }
1715
1716 static void bnx2fc_unbind_adapter_devices(struct bnx2fc_hba *hba)
1717 {
1718         bnx2fc_free_fw_resc(hba);
1719         bnx2fc_free_task_ctx(hba);
1720 }
1721
1722 /**
1723  * bnx2fc_bind_adapter_devices - binds bnx2fc adapter with the associated
1724  *                      pci structure
1725  *
1726  * @hba:                Adapter instance
1727  */
1728 static int bnx2fc_bind_adapter_devices(struct bnx2fc_hba *hba)
1729 {
1730         if (bnx2fc_setup_task_ctx(hba))
1731                 goto mem_err;
1732
1733         if (bnx2fc_setup_fw_resc(hba))
1734                 goto mem_err;
1735
1736         return 0;
1737 mem_err:
1738         bnx2fc_unbind_adapter_devices(hba);
1739         return -ENOMEM;
1740 }
1741
1742 static int bnx2fc_bind_pcidev(struct bnx2fc_hba *hba)
1743 {
1744         struct cnic_dev *cnic;
1745         struct pci_dev *pdev;
1746
1747         if (!hba->cnic) {
1748                 printk(KERN_ERR PFX "cnic is NULL\n");
1749                 return -ENODEV;
1750         }
1751         cnic = hba->cnic;
1752         pdev = hba->pcidev = cnic->pcidev;
1753         if (!hba->pcidev)
1754                 return -ENODEV;
1755
1756         switch (pdev->device) {
1757         case PCI_DEVICE_ID_NX2_57710:
1758                 strncpy(hba->chip_num, "BCM57710", BCM_CHIP_LEN);
1759                 break;
1760         case PCI_DEVICE_ID_NX2_57711:
1761                 strncpy(hba->chip_num, "BCM57711", BCM_CHIP_LEN);
1762                 break;
1763         case PCI_DEVICE_ID_NX2_57712:
1764         case PCI_DEVICE_ID_NX2_57712_MF:
1765         case PCI_DEVICE_ID_NX2_57712_VF:
1766                 strncpy(hba->chip_num, "BCM57712", BCM_CHIP_LEN);
1767                 break;
1768         case PCI_DEVICE_ID_NX2_57800:
1769         case PCI_DEVICE_ID_NX2_57800_MF:
1770         case PCI_DEVICE_ID_NX2_57800_VF:
1771                 strncpy(hba->chip_num, "BCM57800", BCM_CHIP_LEN);
1772                 break;
1773         case PCI_DEVICE_ID_NX2_57810:
1774         case PCI_DEVICE_ID_NX2_57810_MF:
1775         case PCI_DEVICE_ID_NX2_57810_VF:
1776                 strncpy(hba->chip_num, "BCM57810", BCM_CHIP_LEN);
1777                 break;
1778         case PCI_DEVICE_ID_NX2_57840:
1779         case PCI_DEVICE_ID_NX2_57840_MF:
1780         case PCI_DEVICE_ID_NX2_57840_VF:
1781         case PCI_DEVICE_ID_NX2_57840_2_20:
1782         case PCI_DEVICE_ID_NX2_57840_4_10:
1783                 strncpy(hba->chip_num, "BCM57840", BCM_CHIP_LEN);
1784                 break;
1785         default:
1786                 pr_err(PFX "Unknown device id 0x%x\n", pdev->device);
1787                 break;
1788         }
1789         pci_dev_get(hba->pcidev);
1790         return 0;
1791 }
1792
1793 static void bnx2fc_unbind_pcidev(struct bnx2fc_hba *hba)
1794 {
1795         if (hba->pcidev) {
1796                 hba->chip_num[0] = '\0';
1797                 pci_dev_put(hba->pcidev);
1798         }
1799         hba->pcidev = NULL;
1800 }
1801
1802 /**
1803  * bnx2fc_ulp_get_stats - cnic callback to populate FCoE stats
1804  *
1805  * @handle:    transport handle pointing to adapter struture
1806  */
1807 static int bnx2fc_ulp_get_stats(void *handle)
1808 {
1809         struct bnx2fc_hba *hba = handle;
1810         struct cnic_dev *cnic;
1811         struct fcoe_stats_info *stats_addr;
1812
1813         if (!hba)
1814                 return -EINVAL;
1815
1816         cnic = hba->cnic;
1817         stats_addr = &cnic->stats_addr->fcoe_stat;
1818         if (!stats_addr)
1819                 return -EINVAL;
1820
1821         strncpy(stats_addr->version, BNX2FC_VERSION,
1822                 sizeof(stats_addr->version));
1823         stats_addr->txq_size = BNX2FC_SQ_WQES_MAX;
1824         stats_addr->rxq_size = BNX2FC_CQ_WQES_MAX;
1825
1826         return 0;
1827 }
1828
1829
1830 /**
1831  * bnx2fc_ulp_start - cnic callback to initialize & start adapter instance
1832  *
1833  * @handle:     transport handle pointing to adapter structure
1834  *
1835  * This function maps adapter structure to pcidev structure and initiates
1836  *      firmware handshake to enable/initialize on-chip FCoE components.
1837  *      This bnx2fc - cnic interface api callback is used after following
1838  *      conditions are met -
1839  *      a) underlying network interface is up (marked by event NETDEV_UP
1840  *              from netdev
1841  *      b) bnx2fc adatper structure is registered.
1842  */
1843 static void bnx2fc_ulp_start(void *handle)
1844 {
1845         struct bnx2fc_hba *hba = handle;
1846         struct bnx2fc_interface *interface;
1847         struct fcoe_ctlr *ctlr;
1848         struct fc_lport *lport;
1849
1850         mutex_lock(&bnx2fc_dev_lock);
1851
1852         if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags))
1853                 bnx2fc_fw_init(hba);
1854
1855         BNX2FC_MISC_DBG("bnx2fc started.\n");
1856
1857         list_for_each_entry(interface, &if_list, list) {
1858                 if (interface->hba == hba) {
1859                         ctlr = bnx2fc_to_ctlr(interface);
1860                         lport = ctlr->lp;
1861                         /* Kick off Fabric discovery*/
1862                         printk(KERN_ERR PFX "ulp_init: start discovery\n");
1863                         lport->tt.frame_send = bnx2fc_xmit;
1864                         bnx2fc_start_disc(interface);
1865                 }
1866         }
1867
1868         mutex_unlock(&bnx2fc_dev_lock);
1869 }
1870
1871 static void bnx2fc_port_shutdown(struct fc_lport *lport)
1872 {
1873         BNX2FC_MISC_DBG("Entered %s\n", __func__);
1874         fc_fabric_logoff(lport);
1875         fc_lport_destroy(lport);
1876 }
1877
1878 static void bnx2fc_stop(struct bnx2fc_interface *interface)
1879 {
1880         struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface);
1881         struct fc_lport *lport;
1882         struct fc_lport *vport;
1883
1884         if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &interface->hba->flags))
1885                 return;
1886
1887         lport = ctlr->lp;
1888         bnx2fc_port_shutdown(lport);
1889
1890         mutex_lock(&lport->lp_mutex);
1891         list_for_each_entry(vport, &lport->vports, list)
1892                 fc_host_port_type(vport->host) =
1893                                         FC_PORTTYPE_UNKNOWN;
1894         mutex_unlock(&lport->lp_mutex);
1895         fc_host_port_type(lport->host) = FC_PORTTYPE_UNKNOWN;
1896         fcoe_ctlr_link_down(ctlr);
1897         fcoe_clean_pending_queue(lport);
1898 }
1899
1900 static int bnx2fc_fw_init(struct bnx2fc_hba *hba)
1901 {
1902 #define BNX2FC_INIT_POLL_TIME           (1000 / HZ)
1903         int rc = -1;
1904         int i = HZ;
1905
1906         rc = bnx2fc_bind_adapter_devices(hba);
1907         if (rc) {
1908                 printk(KERN_ALERT PFX
1909                         "bnx2fc_bind_adapter_devices failed - rc = %d\n", rc);
1910                 goto err_out;
1911         }
1912
1913         rc = bnx2fc_send_fw_fcoe_init_msg(hba);
1914         if (rc) {
1915                 printk(KERN_ALERT PFX
1916                         "bnx2fc_send_fw_fcoe_init_msg failed - rc = %d\n", rc);
1917                 goto err_unbind;
1918         }
1919
1920         /*
1921          * Wait until the adapter init message is complete, and adapter
1922          * state is UP.
1923          */
1924         while (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state) && i--)
1925                 msleep(BNX2FC_INIT_POLL_TIME);
1926
1927         if (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state)) {
1928                 printk(KERN_ERR PFX "bnx2fc_start: %s failed to initialize.  "
1929                                 "Ignoring...\n",
1930                                 hba->cnic->netdev->name);
1931                 rc = -1;
1932                 goto err_unbind;
1933         }
1934
1935
1936         set_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags);
1937         return 0;
1938
1939 err_unbind:
1940         bnx2fc_unbind_adapter_devices(hba);
1941 err_out:
1942         return rc;
1943 }
1944
1945 static void bnx2fc_fw_destroy(struct bnx2fc_hba *hba)
1946 {
1947         if (test_and_clear_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags)) {
1948                 if (bnx2fc_send_fw_fcoe_destroy_msg(hba) == 0) {
1949                         timer_setup(&hba->destroy_timer, bnx2fc_destroy_timer,
1950                                     0);
1951                         hba->destroy_timer.expires = BNX2FC_FW_TIMEOUT +
1952                                                                 jiffies;
1953                         add_timer(&hba->destroy_timer);
1954                         wait_event_interruptible(hba->destroy_wait,
1955                                         test_bit(BNX2FC_FLAG_DESTROY_CMPL,
1956                                                  &hba->flags));
1957                         clear_bit(BNX2FC_FLAG_DESTROY_CMPL, &hba->flags);
1958                         /* This should never happen */
1959                         if (signal_pending(current))
1960                                 flush_signals(current);
1961
1962                         del_timer_sync(&hba->destroy_timer);
1963                 }
1964                 bnx2fc_unbind_adapter_devices(hba);
1965         }
1966 }
1967
1968 /**
1969  * bnx2fc_ulp_stop - cnic callback to shutdown adapter instance
1970  *
1971  * @handle:     transport handle pointing to adapter structure
1972  *
1973  * Driver checks if adapter is already in shutdown mode, if not start
1974  *      the shutdown process.
1975  */
1976 static void bnx2fc_ulp_stop(void *handle)
1977 {
1978         struct bnx2fc_hba *hba = handle;
1979         struct bnx2fc_interface *interface;
1980
1981         printk(KERN_ERR "ULP_STOP\n");
1982
1983         mutex_lock(&bnx2fc_dev_lock);
1984         if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags))
1985                 goto exit;
1986         list_for_each_entry(interface, &if_list, list) {
1987                 if (interface->hba == hba)
1988                         bnx2fc_stop(interface);
1989         }
1990         BUG_ON(hba->num_ofld_sess != 0);
1991
1992         mutex_lock(&hba->hba_mutex);
1993         clear_bit(ADAPTER_STATE_UP, &hba->adapter_state);
1994         clear_bit(ADAPTER_STATE_GOING_DOWN,
1995                   &hba->adapter_state);
1996
1997         clear_bit(ADAPTER_STATE_READY, &hba->adapter_state);
1998         mutex_unlock(&hba->hba_mutex);
1999
2000         bnx2fc_fw_destroy(hba);
2001 exit:
2002         mutex_unlock(&bnx2fc_dev_lock);
2003 }
2004
2005 static void bnx2fc_start_disc(struct bnx2fc_interface *interface)
2006 {
2007         struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface);
2008         struct fc_lport *lport;
2009         int wait_cnt = 0;
2010
2011         BNX2FC_MISC_DBG("Entered %s\n", __func__);
2012         /* Kick off FIP/FLOGI */
2013         if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &interface->hba->flags)) {
2014                 printk(KERN_ERR PFX "Init not done yet\n");
2015                 return;
2016         }
2017
2018         lport = ctlr->lp;
2019         BNX2FC_HBA_DBG(lport, "calling fc_fabric_login\n");
2020
2021         if (!bnx2fc_link_ok(lport) && interface->enabled) {
2022                 BNX2FC_HBA_DBG(lport, "ctlr_link_up\n");
2023                 fcoe_ctlr_link_up(ctlr);
2024                 fc_host_port_type(lport->host) = FC_PORTTYPE_NPORT;
2025                 set_bit(ADAPTER_STATE_READY, &interface->hba->adapter_state);
2026         }
2027
2028         /* wait for the FCF to be selected before issuing FLOGI */
2029         while (!ctlr->sel_fcf) {
2030                 msleep(250);
2031                 /* give up after 3 secs */
2032                 if (++wait_cnt > 12)
2033                         break;
2034         }
2035
2036         /* Reset max receive frame size to default */
2037         if (fc_set_mfs(lport, BNX2FC_MFS))
2038                 return;
2039
2040         fc_lport_init(lport);
2041         fc_fabric_login(lport);
2042 }
2043
2044
2045 /**
2046  * bnx2fc_ulp_init - Initialize an adapter instance
2047  *
2048  * @dev :       cnic device handle
2049  * Called from cnic_register_driver() context to initialize all
2050  *      enumerated cnic devices. This routine allocates adapter structure
2051  *      and other device specific resources.
2052  */
2053 static void bnx2fc_ulp_init(struct cnic_dev *dev)
2054 {
2055         struct bnx2fc_hba *hba;
2056         int rc = 0;
2057
2058         BNX2FC_MISC_DBG("Entered %s\n", __func__);
2059         /* bnx2fc works only when bnx2x is loaded */
2060         if (!test_bit(CNIC_F_BNX2X_CLASS, &dev->flags) ||
2061             (dev->max_fcoe_conn == 0)) {
2062                 printk(KERN_ERR PFX "bnx2fc FCoE not supported on %s,"
2063                                     " flags: %lx fcoe_conn: %d\n",
2064                         dev->netdev->name, dev->flags, dev->max_fcoe_conn);
2065                 return;
2066         }
2067
2068         hba = bnx2fc_hba_create(dev);
2069         if (!hba) {
2070                 printk(KERN_ERR PFX "hba initialization failed\n");
2071                 return;
2072         }
2073
2074         pr_info(PFX "FCoE initialized for %s.\n", dev->netdev->name);
2075
2076         /* Add HBA to the adapter list */
2077         mutex_lock(&bnx2fc_dev_lock);
2078         list_add_tail(&hba->list, &adapter_list);
2079         adapter_count++;
2080         mutex_unlock(&bnx2fc_dev_lock);
2081
2082         dev->fcoe_cap = &hba->fcoe_cap;
2083         clear_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic);
2084         rc = dev->register_device(dev, CNIC_ULP_FCOE,
2085                                                 (void *) hba);
2086         if (rc)
2087                 printk(KERN_ERR PFX "register_device failed, rc = %d\n", rc);
2088         else
2089                 set_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic);
2090 }
2091
2092 /* Assumes rtnl_lock and the bnx2fc_dev_lock are already taken */
2093 static int __bnx2fc_disable(struct fcoe_ctlr *ctlr)
2094 {
2095         struct bnx2fc_interface *interface = fcoe_ctlr_priv(ctlr);
2096
2097         if (interface->enabled == true) {
2098                 if (!ctlr->lp) {
2099                         pr_err(PFX "__bnx2fc_disable: lport not found\n");
2100                         return -ENODEV;
2101                 } else {
2102                         interface->enabled = false;
2103                         fcoe_ctlr_link_down(ctlr);
2104                         fcoe_clean_pending_queue(ctlr->lp);
2105                 }
2106         }
2107         return 0;
2108 }
2109
2110 /**
2111  * Deperecated: Use bnx2fc_enabled()
2112  */
2113 static int bnx2fc_disable(struct net_device *netdev)
2114 {
2115         struct bnx2fc_interface *interface;
2116         struct fcoe_ctlr *ctlr;
2117         int rc = 0;
2118
2119         rtnl_lock();
2120         mutex_lock(&bnx2fc_dev_lock);
2121
2122         interface = bnx2fc_interface_lookup(netdev);
2123         ctlr = bnx2fc_to_ctlr(interface);
2124
2125         if (!interface) {
2126                 rc = -ENODEV;
2127                 pr_err(PFX "bnx2fc_disable: interface not found\n");
2128         } else {
2129                 rc = __bnx2fc_disable(ctlr);
2130         }
2131         mutex_unlock(&bnx2fc_dev_lock);
2132         rtnl_unlock();
2133         return rc;
2134 }
2135
2136 static uint bnx2fc_npiv_create_vports(struct fc_lport *lport,
2137                                       struct cnic_fc_npiv_tbl *npiv_tbl)
2138 {
2139         struct fc_vport_identifiers vpid;
2140         uint i, created = 0;
2141         u64 wwnn = 0;
2142         char wwpn_str[32];
2143         char wwnn_str[32];
2144
2145         if (npiv_tbl->count > MAX_NPIV_ENTRIES) {
2146                 BNX2FC_HBA_DBG(lport, "Exceeded count max of npiv table\n");
2147                 goto done;
2148         }
2149
2150         /* Sanity check the first entry to make sure it's not 0 */
2151         if (wwn_to_u64(npiv_tbl->wwnn[0]) == 0 &&
2152             wwn_to_u64(npiv_tbl->wwpn[0]) == 0) {
2153                 BNX2FC_HBA_DBG(lport, "First NPIV table entries invalid.\n");
2154                 goto done;
2155         }
2156
2157         vpid.roles = FC_PORT_ROLE_FCP_INITIATOR;
2158         vpid.vport_type = FC_PORTTYPE_NPIV;
2159         vpid.disable = false;
2160
2161         for (i = 0; i < npiv_tbl->count; i++) {
2162                 wwnn = wwn_to_u64(npiv_tbl->wwnn[i]);
2163                 if (wwnn == 0) {
2164                         /*
2165                          * If we get a 0 element from for the WWNN then assume
2166                          * the WWNN should be the same as the physical port.
2167                          */
2168                         wwnn = lport->wwnn;
2169                 }
2170                 vpid.node_name = wwnn;
2171                 vpid.port_name = wwn_to_u64(npiv_tbl->wwpn[i]);
2172                 scnprintf(vpid.symbolic_name, sizeof(vpid.symbolic_name),
2173                     "NPIV[%u]:%016llx-%016llx",
2174                     created, vpid.port_name, vpid.node_name);
2175                 fcoe_wwn_to_str(vpid.node_name, wwnn_str, sizeof(wwnn_str));
2176                 fcoe_wwn_to_str(vpid.port_name, wwpn_str, sizeof(wwpn_str));
2177                 BNX2FC_HBA_DBG(lport, "Creating vport %s:%s.\n", wwnn_str,
2178                     wwpn_str);
2179                 if (fc_vport_create(lport->host, 0, &vpid))
2180                         created++;
2181                 else
2182                         BNX2FC_HBA_DBG(lport, "Failed to create vport\n");
2183         }
2184 done:
2185         return created;
2186 }
2187
2188 static int __bnx2fc_enable(struct fcoe_ctlr *ctlr)
2189 {
2190         struct bnx2fc_interface *interface = fcoe_ctlr_priv(ctlr);
2191         struct bnx2fc_hba *hba;
2192         struct cnic_fc_npiv_tbl *npiv_tbl;
2193         struct fc_lport *lport;
2194
2195         if (interface->enabled == false) {
2196                 if (!ctlr->lp) {
2197                         pr_err(PFX "__bnx2fc_enable: lport not found\n");
2198                         return -ENODEV;
2199                 } else if (!bnx2fc_link_ok(ctlr->lp)) {
2200                         fcoe_ctlr_link_up(ctlr);
2201                         interface->enabled = true;
2202                 }
2203         }
2204
2205         /* Create static NPIV ports if any are contained in NVRAM */
2206         hba = interface->hba;
2207         lport = ctlr->lp;
2208
2209         if (!hba)
2210                 goto done;
2211
2212         if (!hba->cnic)
2213                 goto done;
2214
2215         if (!lport)
2216                 goto done;
2217
2218         if (!lport->host)
2219                 goto done;
2220
2221         if (!hba->cnic->get_fc_npiv_tbl)
2222                 goto done;
2223
2224         npiv_tbl = kzalloc(sizeof(struct cnic_fc_npiv_tbl), GFP_KERNEL);
2225         if (!npiv_tbl)
2226                 goto done;
2227
2228         if (hba->cnic->get_fc_npiv_tbl(hba->cnic, npiv_tbl))
2229                 goto done_free;
2230
2231         bnx2fc_npiv_create_vports(lport, npiv_tbl);
2232 done_free:
2233         kfree(npiv_tbl);
2234 done:
2235         return 0;
2236 }
2237
2238 /**
2239  * Deprecated: Use bnx2fc_enabled()
2240  */
2241 static int bnx2fc_enable(struct net_device *netdev)
2242 {
2243         struct bnx2fc_interface *interface;
2244         struct fcoe_ctlr *ctlr;
2245         int rc = 0;
2246
2247         rtnl_lock();
2248         mutex_lock(&bnx2fc_dev_lock);
2249
2250         interface = bnx2fc_interface_lookup(netdev);
2251         ctlr = bnx2fc_to_ctlr(interface);
2252         if (!interface) {
2253                 rc = -ENODEV;
2254                 pr_err(PFX "bnx2fc_enable: interface not found\n");
2255         } else {
2256                 rc = __bnx2fc_enable(ctlr);
2257         }
2258
2259         mutex_unlock(&bnx2fc_dev_lock);
2260         rtnl_unlock();
2261         return rc;
2262 }
2263
2264 /**
2265  * bnx2fc_ctlr_enabled() - Enable or disable an FCoE Controller
2266  * @cdev: The FCoE Controller that is being enabled or disabled
2267  *
2268  * fcoe_sysfs will ensure that the state of 'enabled' has
2269  * changed, so no checking is necessary here. This routine simply
2270  * calls fcoe_enable or fcoe_disable, both of which are deprecated.
2271  * When those routines are removed the functionality can be merged
2272  * here.
2273  */
2274 static int bnx2fc_ctlr_enabled(struct fcoe_ctlr_device *cdev)
2275 {
2276         struct fcoe_ctlr *ctlr = fcoe_ctlr_device_priv(cdev);
2277
2278         switch (cdev->enabled) {
2279         case FCOE_CTLR_ENABLED:
2280                 return __bnx2fc_enable(ctlr);
2281         case FCOE_CTLR_DISABLED:
2282                 return __bnx2fc_disable(ctlr);
2283         case FCOE_CTLR_UNUSED:
2284         default:
2285                 return -ENOTSUPP;
2286         };
2287 }
2288
2289 enum bnx2fc_create_link_state {
2290         BNX2FC_CREATE_LINK_DOWN,
2291         BNX2FC_CREATE_LINK_UP,
2292 };
2293
2294 /**
2295  * _bnx2fc_create() - Create bnx2fc FCoE interface
2296  * @netdev  :   The net_device object the Ethernet interface to create on
2297  * @fip_mode:   The FIP mode for this creation
2298  * @link_state: The ctlr link state on creation
2299  *
2300  * Called from either the libfcoe 'create' module parameter
2301  * via fcoe_create or from fcoe_syfs's ctlr_create file.
2302  *
2303  * libfcoe's 'create' module parameter is deprecated so some
2304  * consolidation of code can be done when that interface is
2305  * removed.
2306  *
2307  * Returns: 0 for success
2308  */
2309 static int _bnx2fc_create(struct net_device *netdev,
2310                           enum fip_mode fip_mode,
2311                           enum bnx2fc_create_link_state link_state)
2312 {
2313         struct fcoe_ctlr_device *cdev;
2314         struct fcoe_ctlr *ctlr;
2315         struct bnx2fc_interface *interface;
2316         struct bnx2fc_hba *hba;
2317         struct net_device *phys_dev = netdev;
2318         struct fc_lport *lport;
2319         struct ethtool_drvinfo drvinfo;
2320         int rc = 0;
2321         int vlan_id = 0;
2322
2323         BNX2FC_MISC_DBG("Entered bnx2fc_create\n");
2324         if (fip_mode != FIP_MODE_FABRIC) {
2325                 printk(KERN_ERR "fip mode not FABRIC\n");
2326                 return -EIO;
2327         }
2328
2329         rtnl_lock();
2330
2331         mutex_lock(&bnx2fc_dev_lock);
2332
2333         if (!try_module_get(THIS_MODULE)) {
2334                 rc = -EINVAL;
2335                 goto mod_err;
2336         }
2337
2338         /* obtain physical netdev */
2339         if (is_vlan_dev(netdev))
2340                 phys_dev = vlan_dev_real_dev(netdev);
2341
2342         /* verify if the physical device is a netxtreme2 device */
2343         if (phys_dev->ethtool_ops && phys_dev->ethtool_ops->get_drvinfo) {
2344                 memset(&drvinfo, 0, sizeof(drvinfo));
2345                 phys_dev->ethtool_ops->get_drvinfo(phys_dev, &drvinfo);
2346                 if (strncmp(drvinfo.driver, "bnx2x", strlen("bnx2x"))) {
2347                         printk(KERN_ERR PFX "Not a netxtreme2 device\n");
2348                         rc = -EINVAL;
2349                         goto netdev_err;
2350                 }
2351         } else {
2352                 printk(KERN_ERR PFX "unable to obtain drv_info\n");
2353                 rc = -EINVAL;
2354                 goto netdev_err;
2355         }
2356
2357         /* obtain interface and initialize rest of the structure */
2358         hba = bnx2fc_hba_lookup(phys_dev);
2359         if (!hba) {
2360                 rc = -ENODEV;
2361                 printk(KERN_ERR PFX "bnx2fc_create: hba not found\n");
2362                 goto netdev_err;
2363         }
2364
2365         if (bnx2fc_interface_lookup(netdev)) {
2366                 rc = -EEXIST;
2367                 goto netdev_err;
2368         }
2369
2370         interface = bnx2fc_interface_create(hba, netdev, fip_mode);
2371         if (!interface) {
2372                 printk(KERN_ERR PFX "bnx2fc_interface_create failed\n");
2373                 rc = -ENOMEM;
2374                 goto ifput_err;
2375         }
2376
2377         if (is_vlan_dev(netdev)) {
2378                 vlan_id = vlan_dev_vlan_id(netdev);
2379                 interface->vlan_enabled = 1;
2380         }
2381
2382         ctlr = bnx2fc_to_ctlr(interface);
2383         cdev = fcoe_ctlr_to_ctlr_dev(ctlr);
2384         interface->vlan_id = vlan_id;
2385         interface->tm_timeout = BNX2FC_TM_TIMEOUT;
2386
2387         interface->timer_work_queue =
2388                         create_singlethread_workqueue("bnx2fc_timer_wq");
2389         if (!interface->timer_work_queue) {
2390                 printk(KERN_ERR PFX "ulp_init could not create timer_wq\n");
2391                 rc = -EINVAL;
2392                 goto ifput_err;
2393         }
2394
2395         lport = bnx2fc_if_create(interface, &cdev->dev, 0);
2396         if (!lport) {
2397                 printk(KERN_ERR PFX "Failed to create interface (%s)\n",
2398                         netdev->name);
2399                 rc = -EINVAL;
2400                 goto if_create_err;
2401         }
2402
2403         /* Add interface to if_list */
2404         list_add_tail(&interface->list, &if_list);
2405
2406         lport->boot_time = jiffies;
2407
2408         /* Make this master N_port */
2409         ctlr->lp = lport;
2410
2411         if (link_state == BNX2FC_CREATE_LINK_UP)
2412                 cdev->enabled = FCOE_CTLR_ENABLED;
2413         else
2414                 cdev->enabled = FCOE_CTLR_DISABLED;
2415
2416         if (link_state == BNX2FC_CREATE_LINK_UP &&
2417             !bnx2fc_link_ok(lport)) {
2418                 fcoe_ctlr_link_up(ctlr);
2419                 fc_host_port_type(lport->host) = FC_PORTTYPE_NPORT;
2420                 set_bit(ADAPTER_STATE_READY, &interface->hba->adapter_state);
2421         }
2422
2423         BNX2FC_HBA_DBG(lport, "create: START DISC\n");
2424         bnx2fc_start_disc(interface);
2425
2426         if (link_state == BNX2FC_CREATE_LINK_UP)
2427                 interface->enabled = true;
2428
2429         /*
2430          * Release from kref_init in bnx2fc_interface_setup, on success
2431          * lport should be holding a reference taken in bnx2fc_if_create
2432          */
2433         bnx2fc_interface_put(interface);
2434         /* put netdev that was held while calling dev_get_by_name */
2435         mutex_unlock(&bnx2fc_dev_lock);
2436         rtnl_unlock();
2437         return 0;
2438
2439 if_create_err:
2440         destroy_workqueue(interface->timer_work_queue);
2441 ifput_err:
2442         bnx2fc_net_cleanup(interface);
2443         bnx2fc_interface_put(interface);
2444         goto mod_err;
2445 netdev_err:
2446         module_put(THIS_MODULE);
2447 mod_err:
2448         mutex_unlock(&bnx2fc_dev_lock);
2449         rtnl_unlock();
2450         return rc;
2451 }
2452
2453 /**
2454  * bnx2fc_create() - Create a bnx2fc interface
2455  * @netdev  : The net_device object the Ethernet interface to create on
2456  * @fip_mode: The FIP mode for this creation
2457  *
2458  * Called from fcoe transport
2459  *
2460  * Returns: 0 for success
2461  */
2462 static int bnx2fc_create(struct net_device *netdev, enum fip_mode fip_mode)
2463 {
2464         return _bnx2fc_create(netdev, fip_mode, BNX2FC_CREATE_LINK_UP);
2465 }
2466
2467 /**
2468  * bnx2fc_ctlr_alloc() - Allocate a bnx2fc interface from fcoe_sysfs
2469  * @netdev: The net_device to be used by the allocated FCoE Controller
2470  *
2471  * This routine is called from fcoe_sysfs. It will start the fcoe_ctlr
2472  * in a link_down state. The allows the user an opportunity to configure
2473  * the FCoE Controller from sysfs before enabling the FCoE Controller.
2474  *
2475  * Creating in with this routine starts the FCoE Controller in Fabric
2476  * mode. The user can change to VN2VN or another mode before enabling.
2477  */
2478 static int bnx2fc_ctlr_alloc(struct net_device *netdev)
2479 {
2480         return _bnx2fc_create(netdev, FIP_MODE_FABRIC,
2481                               BNX2FC_CREATE_LINK_DOWN);
2482 }
2483
2484 /**
2485  * bnx2fc_find_hba_for_cnic - maps cnic instance to bnx2fc hba instance
2486  *
2487  * @cnic:       Pointer to cnic device instance
2488  *
2489  **/
2490 static struct bnx2fc_hba *bnx2fc_find_hba_for_cnic(struct cnic_dev *cnic)
2491 {
2492         struct bnx2fc_hba *hba;
2493
2494         /* Called with bnx2fc_dev_lock held */
2495         list_for_each_entry(hba, &adapter_list, list) {
2496                 if (hba->cnic == cnic)
2497                         return hba;
2498         }
2499         return NULL;
2500 }
2501
2502 static struct bnx2fc_interface *bnx2fc_interface_lookup(struct net_device
2503                                                         *netdev)
2504 {
2505         struct bnx2fc_interface *interface;
2506
2507         /* Called with bnx2fc_dev_lock held */
2508         list_for_each_entry(interface, &if_list, list) {
2509                 if (interface->netdev == netdev)
2510                         return interface;
2511         }
2512         return NULL;
2513 }
2514
2515 static struct bnx2fc_hba *bnx2fc_hba_lookup(struct net_device
2516                                                       *phys_dev)
2517 {
2518         struct bnx2fc_hba *hba;
2519
2520         /* Called with bnx2fc_dev_lock held */
2521         list_for_each_entry(hba, &adapter_list, list) {
2522                 if (hba->phys_dev == phys_dev)
2523                         return hba;
2524         }
2525         printk(KERN_ERR PFX "adapter_lookup: hba NULL\n");
2526         return NULL;
2527 }
2528
2529 /**
2530  * bnx2fc_ulp_exit - shuts down adapter instance and frees all resources
2531  *
2532  * @dev         cnic device handle
2533  */
2534 static void bnx2fc_ulp_exit(struct cnic_dev *dev)
2535 {
2536         struct bnx2fc_hba *hba;
2537         struct bnx2fc_interface *interface, *tmp;
2538
2539         BNX2FC_MISC_DBG("Entered bnx2fc_ulp_exit\n");
2540
2541         if (!test_bit(CNIC_F_BNX2X_CLASS, &dev->flags)) {
2542                 printk(KERN_ERR PFX "bnx2fc port check: %s, flags: %lx\n",
2543                         dev->netdev->name, dev->flags);
2544                 return;
2545         }
2546
2547         mutex_lock(&bnx2fc_dev_lock);
2548         hba = bnx2fc_find_hba_for_cnic(dev);
2549         if (!hba) {
2550                 printk(KERN_ERR PFX "bnx2fc_ulp_exit: hba not found, dev 0%p\n",
2551                        dev);
2552                 mutex_unlock(&bnx2fc_dev_lock);
2553                 return;
2554         }
2555
2556         list_del_init(&hba->list);
2557         adapter_count--;
2558
2559         list_for_each_entry_safe(interface, tmp, &if_list, list)
2560                 /* destroy not called yet, move to quiesced list */
2561                 if (interface->hba == hba)
2562                         __bnx2fc_destroy(interface);
2563         mutex_unlock(&bnx2fc_dev_lock);
2564
2565         /* Ensure ALL destroy work has been completed before return */
2566         flush_workqueue(bnx2fc_wq);
2567
2568         bnx2fc_ulp_stop(hba);
2569         /* unregister cnic device */
2570         if (test_and_clear_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic))
2571                 hba->cnic->unregister_device(hba->cnic, CNIC_ULP_FCOE);
2572         bnx2fc_hba_destroy(hba);
2573 }
2574
2575 static void bnx2fc_rport_terminate_io(struct fc_rport *rport)
2576 {
2577         /* This is a no-op */
2578 }
2579
2580 /**
2581  * bnx2fc_fcoe_reset - Resets the fcoe
2582  *
2583  * @shost: shost the reset is from
2584  *
2585  * Returns: always 0
2586  */
2587 static int bnx2fc_fcoe_reset(struct Scsi_Host *shost)
2588 {
2589         struct fc_lport *lport = shost_priv(shost);
2590         fc_lport_reset(lport);
2591         return 0;
2592 }
2593
2594
2595 static bool bnx2fc_match(struct net_device *netdev)
2596 {
2597         struct net_device *phys_dev = netdev;
2598
2599         mutex_lock(&bnx2fc_dev_lock);
2600         if (is_vlan_dev(netdev))
2601                 phys_dev = vlan_dev_real_dev(netdev);
2602
2603         if (bnx2fc_hba_lookup(phys_dev)) {
2604                 mutex_unlock(&bnx2fc_dev_lock);
2605                 return true;
2606         }
2607
2608         mutex_unlock(&bnx2fc_dev_lock);
2609         return false;
2610 }
2611
2612
2613 static struct fcoe_transport bnx2fc_transport = {
2614         .name = {"bnx2fc"},
2615         .attached = false,
2616         .list = LIST_HEAD_INIT(bnx2fc_transport.list),
2617         .alloc = bnx2fc_ctlr_alloc,
2618         .match = bnx2fc_match,
2619         .create = bnx2fc_create,
2620         .destroy = bnx2fc_destroy,
2621         .enable = bnx2fc_enable,
2622         .disable = bnx2fc_disable,
2623 };
2624
2625 /**
2626  * bnx2fc_cpu_online - Create a receive thread for an  online CPU
2627  *
2628  * @cpu: cpu index for the online cpu
2629  */
2630 static int bnx2fc_cpu_online(unsigned int cpu)
2631 {
2632         struct bnx2fc_percpu_s *p;
2633         struct task_struct *thread;
2634
2635         p = &per_cpu(bnx2fc_percpu, cpu);
2636
2637         thread = kthread_create_on_node(bnx2fc_percpu_io_thread,
2638                                         (void *)p, cpu_to_node(cpu),
2639                                         "bnx2fc_thread/%d", cpu);
2640         if (IS_ERR(thread))
2641                 return PTR_ERR(thread);
2642
2643         /* bind thread to the cpu */
2644         kthread_bind(thread, cpu);
2645         p->iothread = thread;
2646         wake_up_process(thread);
2647         return 0;
2648 }
2649
2650 static int bnx2fc_cpu_offline(unsigned int cpu)
2651 {
2652         struct bnx2fc_percpu_s *p;
2653         struct task_struct *thread;
2654         struct bnx2fc_work *work, *tmp;
2655
2656         BNX2FC_MISC_DBG("destroying io thread for CPU %d\n", cpu);
2657
2658         /* Prevent any new work from being queued for this CPU */
2659         p = &per_cpu(bnx2fc_percpu, cpu);
2660         spin_lock_bh(&p->fp_work_lock);
2661         thread = p->iothread;
2662         p->iothread = NULL;
2663
2664         /* Free all work in the list */
2665         list_for_each_entry_safe(work, tmp, &p->work_list, list) {
2666                 list_del_init(&work->list);
2667                 bnx2fc_process_cq_compl(work->tgt, work->wqe);
2668                 kfree(work);
2669         }
2670
2671         spin_unlock_bh(&p->fp_work_lock);
2672
2673         if (thread)
2674                 kthread_stop(thread);
2675         return 0;
2676 }
2677
2678 static int bnx2fc_slave_configure(struct scsi_device *sdev)
2679 {
2680         if (!bnx2fc_queue_depth)
2681                 return 0;
2682
2683         scsi_change_queue_depth(sdev, bnx2fc_queue_depth);
2684         return 0;
2685 }
2686
2687 static enum cpuhp_state bnx2fc_online_state;
2688
2689 /**
2690  * bnx2fc_mod_init - module init entry point
2691  *
2692  * Initialize driver wide global data structures, and register
2693  * with cnic module
2694  **/
2695 static int __init bnx2fc_mod_init(void)
2696 {
2697         struct fcoe_percpu_s *bg;
2698         struct task_struct *l2_thread;
2699         int rc = 0;
2700         unsigned int cpu = 0;
2701         struct bnx2fc_percpu_s *p;
2702
2703         printk(KERN_INFO PFX "%s", version);
2704
2705         /* register as a fcoe transport */
2706         rc = fcoe_transport_attach(&bnx2fc_transport);
2707         if (rc) {
2708                 printk(KERN_ERR "failed to register an fcoe transport, check "
2709                         "if libfcoe is loaded\n");
2710                 goto out;
2711         }
2712
2713         INIT_LIST_HEAD(&adapter_list);
2714         INIT_LIST_HEAD(&if_list);
2715         mutex_init(&bnx2fc_dev_lock);
2716         adapter_count = 0;
2717
2718         /* Attach FC transport template */
2719         rc = bnx2fc_attach_transport();
2720         if (rc)
2721                 goto detach_ft;
2722
2723         bnx2fc_wq = alloc_workqueue("bnx2fc", 0, 0);
2724         if (!bnx2fc_wq) {
2725                 rc = -ENOMEM;
2726                 goto release_bt;
2727         }
2728
2729         bg = &bnx2fc_global;
2730         skb_queue_head_init(&bg->fcoe_rx_list);
2731         l2_thread = kthread_create(bnx2fc_l2_rcv_thread,
2732                                    (void *)bg,
2733                                    "bnx2fc_l2_thread");
2734         if (IS_ERR(l2_thread)) {
2735                 rc = PTR_ERR(l2_thread);
2736                 goto free_wq;
2737         }
2738         wake_up_process(l2_thread);
2739         spin_lock_bh(&bg->fcoe_rx_list.lock);
2740         bg->kthread = l2_thread;
2741         spin_unlock_bh(&bg->fcoe_rx_list.lock);
2742
2743         for_each_possible_cpu(cpu) {
2744                 p = &per_cpu(bnx2fc_percpu, cpu);
2745                 INIT_LIST_HEAD(&p->work_list);
2746                 spin_lock_init(&p->fp_work_lock);
2747         }
2748
2749         rc = cpuhp_setup_state(CPUHP_AP_ONLINE_DYN, "scsi/bnx2fc:online",
2750                                bnx2fc_cpu_online, bnx2fc_cpu_offline);
2751         if (rc < 0)
2752                 goto stop_thread;
2753         bnx2fc_online_state = rc;
2754
2755         cnic_register_driver(CNIC_ULP_FCOE, &bnx2fc_cnic_cb);
2756         return 0;
2757
2758 stop_thread:
2759         kthread_stop(l2_thread);
2760 free_wq:
2761         destroy_workqueue(bnx2fc_wq);
2762 release_bt:
2763         bnx2fc_release_transport();
2764 detach_ft:
2765         fcoe_transport_detach(&bnx2fc_transport);
2766 out:
2767         return rc;
2768 }
2769
2770 static void __exit bnx2fc_mod_exit(void)
2771 {
2772         LIST_HEAD(to_be_deleted);
2773         struct bnx2fc_hba *hba, *next;
2774         struct fcoe_percpu_s *bg;
2775         struct task_struct *l2_thread;
2776         struct sk_buff *skb;
2777
2778         /*
2779          * NOTE: Since cnic calls register_driver routine rtnl_lock,
2780          * it will have higher precedence than bnx2fc_dev_lock.
2781          * unregister_device() cannot be called with bnx2fc_dev_lock
2782          * held.
2783          */
2784         mutex_lock(&bnx2fc_dev_lock);
2785         list_splice_init(&adapter_list, &to_be_deleted);
2786         adapter_count = 0;
2787         mutex_unlock(&bnx2fc_dev_lock);
2788
2789         /* Unregister with cnic */
2790         list_for_each_entry_safe(hba, next, &to_be_deleted, list) {
2791                 list_del_init(&hba->list);
2792                 printk(KERN_ERR PFX "MOD_EXIT:destroy hba = 0x%p\n",
2793                        hba);
2794                 bnx2fc_ulp_stop(hba);
2795                 /* unregister cnic device */
2796                 if (test_and_clear_bit(BNX2FC_CNIC_REGISTERED,
2797                                        &hba->reg_with_cnic))
2798                         hba->cnic->unregister_device(hba->cnic,
2799                                                          CNIC_ULP_FCOE);
2800                 bnx2fc_hba_destroy(hba);
2801         }
2802         cnic_unregister_driver(CNIC_ULP_FCOE);
2803
2804         /* Destroy global thread */
2805         bg = &bnx2fc_global;
2806         spin_lock_bh(&bg->fcoe_rx_list.lock);
2807         l2_thread = bg->kthread;
2808         bg->kthread = NULL;
2809         while ((skb = __skb_dequeue(&bg->fcoe_rx_list)) != NULL)
2810                 kfree_skb(skb);
2811
2812         spin_unlock_bh(&bg->fcoe_rx_list.lock);
2813
2814         if (l2_thread)
2815                 kthread_stop(l2_thread);
2816
2817         cpuhp_remove_state(bnx2fc_online_state);
2818
2819         destroy_workqueue(bnx2fc_wq);
2820         /*
2821          * detach from scsi transport
2822          * must happen after all destroys are done
2823          */
2824         bnx2fc_release_transport();
2825
2826         /* detach from fcoe transport */
2827         fcoe_transport_detach(&bnx2fc_transport);
2828 }
2829
2830 module_init(bnx2fc_mod_init);
2831 module_exit(bnx2fc_mod_exit);
2832
2833 static struct fcoe_sysfs_function_template bnx2fc_fcoe_sysfs_templ = {
2834         .set_fcoe_ctlr_enabled = bnx2fc_ctlr_enabled,
2835         .get_fcoe_ctlr_link_fail = fcoe_ctlr_get_lesb,
2836         .get_fcoe_ctlr_vlink_fail = fcoe_ctlr_get_lesb,
2837         .get_fcoe_ctlr_miss_fka = fcoe_ctlr_get_lesb,
2838         .get_fcoe_ctlr_symb_err = fcoe_ctlr_get_lesb,
2839         .get_fcoe_ctlr_err_block = fcoe_ctlr_get_lesb,
2840         .get_fcoe_ctlr_fcs_error = fcoe_ctlr_get_lesb,
2841
2842         .get_fcoe_fcf_selected = fcoe_fcf_get_selected,
2843         .get_fcoe_fcf_vlan_id = bnx2fc_fcf_get_vlan_id,
2844 };
2845
2846 static struct fc_function_template bnx2fc_transport_function = {
2847         .show_host_node_name = 1,
2848         .show_host_port_name = 1,
2849         .show_host_supported_classes = 1,
2850         .show_host_supported_fc4s = 1,
2851         .show_host_active_fc4s = 1,
2852         .show_host_maxframe_size = 1,
2853
2854         .show_host_port_id = 1,
2855         .show_host_supported_speeds = 1,
2856         .get_host_speed = fc_get_host_speed,
2857         .show_host_speed = 1,
2858         .show_host_port_type = 1,
2859         .get_host_port_state = fc_get_host_port_state,
2860         .show_host_port_state = 1,
2861         .show_host_symbolic_name = 1,
2862
2863         .dd_fcrport_size = (sizeof(struct fc_rport_libfc_priv) +
2864                                 sizeof(struct bnx2fc_rport)),
2865         .show_rport_maxframe_size = 1,
2866         .show_rport_supported_classes = 1,
2867
2868         .show_host_fabric_name = 1,
2869         .show_starget_node_name = 1,
2870         .show_starget_port_name = 1,
2871         .show_starget_port_id = 1,
2872         .set_rport_dev_loss_tmo = fc_set_rport_loss_tmo,
2873         .show_rport_dev_loss_tmo = 1,
2874         .get_fc_host_stats = bnx2fc_get_host_stats,
2875
2876         .issue_fc_host_lip = bnx2fc_fcoe_reset,
2877
2878         .terminate_rport_io = bnx2fc_rport_terminate_io,
2879
2880         .vport_create = bnx2fc_vport_create,
2881         .vport_delete = bnx2fc_vport_destroy,
2882         .vport_disable = bnx2fc_vport_disable,
2883         .bsg_request = fc_lport_bsg_request,
2884 };
2885
2886 static struct fc_function_template bnx2fc_vport_xport_function = {
2887         .show_host_node_name = 1,
2888         .show_host_port_name = 1,
2889         .show_host_supported_classes = 1,
2890         .show_host_supported_fc4s = 1,
2891         .show_host_active_fc4s = 1,
2892         .show_host_maxframe_size = 1,
2893
2894         .show_host_port_id = 1,
2895         .show_host_supported_speeds = 1,
2896         .get_host_speed = fc_get_host_speed,
2897         .show_host_speed = 1,
2898         .show_host_port_type = 1,
2899         .get_host_port_state = fc_get_host_port_state,
2900         .show_host_port_state = 1,
2901         .show_host_symbolic_name = 1,
2902
2903         .dd_fcrport_size = (sizeof(struct fc_rport_libfc_priv) +
2904                                 sizeof(struct bnx2fc_rport)),
2905         .show_rport_maxframe_size = 1,
2906         .show_rport_supported_classes = 1,
2907
2908         .show_host_fabric_name = 1,
2909         .show_starget_node_name = 1,
2910         .show_starget_port_name = 1,
2911         .show_starget_port_id = 1,
2912         .set_rport_dev_loss_tmo = fc_set_rport_loss_tmo,
2913         .show_rport_dev_loss_tmo = 1,
2914         .get_fc_host_stats = fc_get_host_stats,
2915         .issue_fc_host_lip = bnx2fc_fcoe_reset,
2916         .terminate_rport_io = fc_rport_terminate_io,
2917         .bsg_request = fc_lport_bsg_request,
2918 };
2919
2920 /*
2921  * Additional scsi_host attributes.
2922  */
2923 static ssize_t
2924 bnx2fc_tm_timeout_show(struct device *dev, struct device_attribute *attr,
2925         char *buf)
2926 {
2927         struct Scsi_Host *shost = class_to_shost(dev);
2928         struct fc_lport *lport = shost_priv(shost);
2929         struct fcoe_port *port = lport_priv(lport);
2930         struct bnx2fc_interface *interface = port->priv;
2931
2932         sprintf(buf, "%u\n", interface->tm_timeout);
2933         return strlen(buf);
2934 }
2935
2936 static ssize_t
2937 bnx2fc_tm_timeout_store(struct device *dev,
2938         struct device_attribute *attr, const char *buf, size_t count)
2939 {
2940         struct Scsi_Host *shost = class_to_shost(dev);
2941         struct fc_lport *lport = shost_priv(shost);
2942         struct fcoe_port *port = lport_priv(lport);
2943         struct bnx2fc_interface *interface = port->priv;
2944         int rval, val;
2945
2946         rval = kstrtouint(buf, 10, &val);
2947         if (rval)
2948                 return rval;
2949         if (val > 255)
2950                 return -ERANGE;
2951
2952         interface->tm_timeout = (u8)val;
2953         return strlen(buf);
2954 }
2955
2956 static DEVICE_ATTR(tm_timeout, S_IRUGO|S_IWUSR, bnx2fc_tm_timeout_show,
2957         bnx2fc_tm_timeout_store);
2958
2959 static struct device_attribute *bnx2fc_host_attrs[] = {
2960         &dev_attr_tm_timeout,
2961         NULL,
2962 };
2963
2964 /**
2965  * scsi_host_template structure used while registering with SCSI-ml
2966  */
2967 static struct scsi_host_template bnx2fc_shost_template = {
2968         .module                 = THIS_MODULE,
2969         .name                   = "QLogic Offload FCoE Initiator",
2970         .queuecommand           = bnx2fc_queuecommand,
2971         .eh_timed_out           = fc_eh_timed_out,
2972         .eh_abort_handler       = bnx2fc_eh_abort,        /* abts */
2973         .eh_device_reset_handler = bnx2fc_eh_device_reset, /* lun reset */
2974         .eh_target_reset_handler = bnx2fc_eh_target_reset, /* tgt reset */
2975         .eh_host_reset_handler  = fc_eh_host_reset,
2976         .slave_alloc            = fc_slave_alloc,
2977         .change_queue_depth     = scsi_change_queue_depth,
2978         .this_id                = -1,
2979         .cmd_per_lun            = 3,
2980         .use_clustering         = ENABLE_CLUSTERING,
2981         .sg_tablesize           = BNX2FC_MAX_BDS_PER_CMD,
2982         .max_sectors            = 1024,
2983         .track_queue_depth      = 1,
2984         .slave_configure        = bnx2fc_slave_configure,
2985         .shost_attrs            = bnx2fc_host_attrs,
2986 };
2987
2988 static struct libfc_function_template bnx2fc_libfc_fcn_templ = {
2989         .frame_send             = bnx2fc_xmit,
2990         .elsct_send             = bnx2fc_elsct_send,
2991         .fcp_abort_io           = bnx2fc_abort_io,
2992         .fcp_cleanup            = bnx2fc_cleanup,
2993         .get_lesb               = fcoe_get_lesb,
2994         .rport_event_callback   = bnx2fc_rport_event_handler,
2995 };
2996
2997 /**
2998  * bnx2fc_cnic_cb - global template of bnx2fc - cnic driver interface
2999  *                      structure carrying callback function pointers
3000  */
3001 static struct cnic_ulp_ops bnx2fc_cnic_cb = {
3002         .owner                  = THIS_MODULE,
3003         .cnic_init              = bnx2fc_ulp_init,
3004         .cnic_exit              = bnx2fc_ulp_exit,
3005         .cnic_start             = bnx2fc_ulp_start,
3006         .cnic_stop              = bnx2fc_ulp_stop,
3007         .indicate_kcqes         = bnx2fc_indicate_kcqe,
3008         .indicate_netevent      = bnx2fc_indicate_netevent,
3009         .cnic_get_stats         = bnx2fc_ulp_get_stats,
3010 };