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 static 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_port_destroy(struct fcoe_port *port);
  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 static 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 static 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 static 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 static 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
 154         bg = &bnx2fc_global;
 155         spin_lock_bh(&bg->fcoe_rx_list.lock);
 156         list = &bg->fcoe_rx_list;
 157         skb_queue_walk_safe(list, skb, next) {
 158                 fr = fcoe_dev_from_skb(skb);
 159                 if (fr->fr_dev == lp) {
 160                         __skb_unlink(skb, list);
 161                         kfree_skb(skb);
 162                 }
 163         }
 164         spin_unlock_bh(&bg->fcoe_rx_list.lock);
 165 }
 166
 167 int bnx2fc_get_paged_crc_eof(struct sk_buff *skb, int tlen)
 168 {
 169         int rc;
 170         spin_lock(&bnx2fc_global_lock);
 171         rc = fcoe_get_paged_crc_eof(skb, tlen, &bnx2fc_global);
 172         spin_unlock(&bnx2fc_global_lock);
 173
 174         return rc;
 175 }
 176
 177 static void bnx2fc_abort_io(struct fc_lport *lport)
 178 {
 179         /*
 180          * This function is no-op for bnx2fc, but we do
 181          * not want to leave it as NULL either, as libfc
 182          * can call the default function which is
 183          * fc_fcp_abort_io.
 184          */
 185 }
 186
 187 static void bnx2fc_cleanup(struct fc_lport *lport)
 188 {
 189         struct fcoe_port *port = lport_priv(lport);
 190         struct bnx2fc_interface *interface = port->priv;
 191         struct bnx2fc_hba *hba = interface->hba;
 192         struct bnx2fc_rport *tgt;
 193         int i;
 194
 195         BNX2FC_MISC_DBG("Entered %s\n", __func__);
 196         mutex_lock(&hba->hba_mutex);
 197         spin_lock_bh(&hba->hba_lock);
 198         for (i = 0; i < BNX2FC_NUM_MAX_SESS; i++) {
 199                 tgt = hba->tgt_ofld_list[i];
 200                 if (tgt) {
 201                         /* Cleanup IOs belonging to requested vport */
 202                         if (tgt->port == port) {
 203                                 spin_unlock_bh(&hba->hba_lock);
 204                                 BNX2FC_TGT_DBG(tgt, "flush/cleanup\n");
 205                                 bnx2fc_flush_active_ios(tgt);
 206                                 spin_lock_bh(&hba->hba_lock);
 207                         }
 208                 }
 209         }
 210         spin_unlock_bh(&hba->hba_lock);
 211         mutex_unlock(&hba->hba_mutex);
 212 }
 213
 214 static int bnx2fc_xmit_l2_frame(struct bnx2fc_rport *tgt,
 215                              struct fc_frame *fp)
 216 {
 217         struct fc_rport_priv *rdata = tgt->rdata;
 218         struct fc_frame_header *fh;
 219         int rc = 0;
 220
 221         fh = fc_frame_header_get(fp);
 222         BNX2FC_TGT_DBG(tgt, "Xmit L2 frame rport = 0x%x, oxid = 0x%x, "
 223                         "r_ctl = 0x%x\n", rdata->ids.port_id,
 224                         ntohs(fh->fh_ox_id), fh->fh_r_ctl);
 225         if ((fh->fh_type == FC_TYPE_ELS) &&
 226             (fh->fh_r_ctl == FC_RCTL_ELS_REQ)) {
 227
 228                 switch (fc_frame_payload_op(fp)) {
 229                 case ELS_ADISC:
 230                         rc = bnx2fc_send_adisc(tgt, fp);
 231                         break;
 232                 case ELS_LOGO:
 233                         rc = bnx2fc_send_logo(tgt, fp);
 234                         break;
 235                 case ELS_RLS:
 236                         rc = bnx2fc_send_rls(tgt, fp);
 237                         break;
 238                 default:
 239                         break;
 240                 }
 241         } else if ((fh->fh_type ==  FC_TYPE_BLS) &&
 242             (fh->fh_r_ctl == FC_RCTL_BA_ABTS))
 243                 BNX2FC_TGT_DBG(tgt, "ABTS frame\n");
 244         else {
 245                 BNX2FC_TGT_DBG(tgt, "Send L2 frame type 0x%x "
 246                                 "rctl 0x%x thru non-offload path\n",
 247                                 fh->fh_type, fh->fh_r_ctl);
 248                 return -ENODEV;
 249         }
 250         if (rc)
 251                 return -ENOMEM;
 252         else
 253                 return 0;
 254 }
 255
 256 /**
 257  * bnx2fc_xmit - bnx2fc's FCoE frame transmit function
 258  *
 259  * @lport:      the associated local port
 260  * @fp: the fc_frame to be transmitted
 261  */
 262 static int bnx2fc_xmit(struct fc_lport *lport, struct fc_frame *fp)
 263 {
 264         struct ethhdr           *eh;
 265         struct fcoe_crc_eof     *cp;
 266         struct sk_buff          *skb;
 267         struct fc_frame_header  *fh;
 268         struct bnx2fc_interface *interface;
 269         struct fcoe_ctlr        *ctlr;
 270         struct bnx2fc_hba *hba;
 271         struct fcoe_port        *port;
 272         struct fcoe_hdr         *hp;
 273         struct bnx2fc_rport     *tgt;
 274         struct fc_stats         *stats;
 275         u8                      sof, eof;
 276         u32                     crc;
 277         unsigned int            hlen, tlen, elen;
 278         int                     wlen, rc = 0;
 279
 280         port = (struct fcoe_port *)lport_priv(lport);
 281         interface = port->priv;
 282         ctlr = bnx2fc_to_ctlr(interface);
 283         hba = interface->hba;
 284
 285         fh = fc_frame_header_get(fp);
 286
 287         skb = fp_skb(fp);
 288         if (!lport->link_up) {
 289                 BNX2FC_HBA_DBG(lport, "bnx2fc_xmit link down\n");
 290                 kfree_skb(skb);
 291                 return 0;
 292         }
 293
 294         if (unlikely(fh->fh_r_ctl == FC_RCTL_ELS_REQ)) {
 295                 if (!ctlr->sel_fcf) {
 296                         BNX2FC_HBA_DBG(lport, "FCF not selected yet!\n");
 297                         kfree_skb(skb);
 298                         return -EINVAL;
 299                 }
 300                 if (fcoe_ctlr_els_send(ctlr, lport, skb))
 301                         return 0;
 302         }
 303
 304         sof = fr_sof(fp);
 305         eof = fr_eof(fp);
 306
 307         /*
 308          * Snoop the frame header to check if the frame is for
 309          * an offloaded session
 310          */
 311         /*
 312          * tgt_ofld_list access is synchronized using
 313          * both hba mutex and hba lock. Atleast hba mutex or
 314          * hba lock needs to be held for read access.
 315          */
 316
 317         spin_lock_bh(&hba->hba_lock);
 318         tgt = bnx2fc_tgt_lookup(port, ntoh24(fh->fh_d_id));
 319         if (tgt && (test_bit(BNX2FC_FLAG_SESSION_READY, &tgt->flags))) {
 320                 /* This frame is for offloaded session */
 321                 BNX2FC_HBA_DBG(lport, "xmit: Frame is for offloaded session "
 322                                 "port_id = 0x%x\n", ntoh24(fh->fh_d_id));
 323                 spin_unlock_bh(&hba->hba_lock);
 324                 rc = bnx2fc_xmit_l2_frame(tgt, fp);
 325                 if (rc != -ENODEV) {
 326                         kfree_skb(skb);
 327                         return rc;
 328                 }
 329         } else {
 330                 spin_unlock_bh(&hba->hba_lock);
 331         }
 332
 333         elen = sizeof(struct ethhdr);
 334         hlen = sizeof(struct fcoe_hdr);
 335         tlen = sizeof(struct fcoe_crc_eof);
 336         wlen = (skb->len - tlen + sizeof(crc)) / FCOE_WORD_TO_BYTE;
 337
 338         skb->ip_summed = CHECKSUM_NONE;
 339         crc = fcoe_fc_crc(fp);
 340
 341         /* copy port crc and eof to the skb buff */
 342         if (skb_is_nonlinear(skb)) {
 343                 skb_frag_t *frag;
 344                 if (bnx2fc_get_paged_crc_eof(skb, tlen)) {
 345                         kfree_skb(skb);
 346                         return -ENOMEM;
 347                 }
 348                 frag = &skb_shinfo(skb)->frags[skb_shinfo(skb)->nr_frags - 1];
 349                 cp = kmap_atomic(skb_frag_page(frag)) + skb_frag_off(frag);
 350         } else {
 351                 cp = skb_put(skb, tlen);
 352         }
 353
 354         memset(cp, 0, sizeof(*cp));
 355         cp->fcoe_eof = eof;
 356         cp->fcoe_crc32 = cpu_to_le32(~crc);
 357         if (skb_is_nonlinear(skb)) {
 358                 kunmap_atomic(cp);
 359                 cp = NULL;
 360         }
 361
 362         /* adjust skb network/transport offsets to match mac/fcoe/port */
 363         skb_push(skb, elen + hlen);
 364         skb_reset_mac_header(skb);
 365         skb_reset_network_header(skb);
 366         skb->mac_len = elen;
 367         skb->protocol = htons(ETH_P_FCOE);
 368         skb->dev = interface->netdev;
 369
 370         /* fill up mac and fcoe headers */
 371         eh = eth_hdr(skb);
 372         eh->h_proto = htons(ETH_P_FCOE);
 373         if (ctlr->map_dest)
 374                 fc_fcoe_set_mac(eh->h_dest, fh->fh_d_id);
 375         else
 376                 /* insert GW address */
 377                 memcpy(eh->h_dest, ctlr->dest_addr, ETH_ALEN);
 378
 379         if (unlikely(ctlr->flogi_oxid != FC_XID_UNKNOWN))
 380                 memcpy(eh->h_source, ctlr->ctl_src_addr, ETH_ALEN);
 381         else
 382                 memcpy(eh->h_source, port->data_src_addr, ETH_ALEN);
 383
 384         hp = (struct fcoe_hdr *)(eh + 1);
 385         memset(hp, 0, sizeof(*hp));
 386         if (FC_FCOE_VER)
 387                 FC_FCOE_ENCAPS_VER(hp, FC_FCOE_VER);
 388         hp->fcoe_sof = sof;
 389
 390         /* fcoe lso, mss is in max_payload which is non-zero for FCP data */
 391         if (lport->seq_offload && fr_max_payload(fp)) {
 392                 skb_shinfo(skb)->gso_type = SKB_GSO_FCOE;
 393                 skb_shinfo(skb)->gso_size = fr_max_payload(fp);
 394         } else {
 395                 skb_shinfo(skb)->gso_type = 0;
 396                 skb_shinfo(skb)->gso_size = 0;
 397         }
 398
 399         /*update tx stats */
 400         stats = per_cpu_ptr(lport->stats, get_cpu());
 401         stats->TxFrames++;
 402         stats->TxWords += wlen;
 403         put_cpu();
 404
 405         /* send down to lld */
 406         fr_dev(fp) = lport;
 407         if (port->fcoe_pending_queue.qlen)
 408                 fcoe_check_wait_queue(lport, skb);
 409         else if (fcoe_start_io(skb))
 410                 fcoe_check_wait_queue(lport, skb);
 411
 412         return 0;
 413 }
 414
 415 /**
 416  * bnx2fc_rcv - This is bnx2fc's receive function called by NET_RX_SOFTIRQ
 417  *
 418  * @skb:        the receive socket buffer
 419  * @dev:        associated net device
 420  * @ptype:      context
 421  * @olddev:     last device
 422  *
 423  * This function receives the packet and builds FC frame and passes it up
 424  */
 425 static int bnx2fc_rcv(struct sk_buff *skb, struct net_device *dev,
 426                 struct packet_type *ptype, struct net_device *olddev)
 427 {
 428         struct fc_lport *lport;
 429         struct bnx2fc_interface *interface;
 430         struct fcoe_ctlr *ctlr;
 431         struct fcoe_rcv_info *fr;
 432         struct fcoe_percpu_s *bg;
 433
 434         interface = container_of(ptype, struct bnx2fc_interface,
 435                                  fcoe_packet_type);
 436         ctlr = bnx2fc_to_ctlr(interface);
 437         lport = ctlr->lp;
 438
 439         if (unlikely(lport == NULL)) {
 440                 printk(KERN_ERR PFX "bnx2fc_rcv: lport is NULL\n");
 441                 goto err;
 442         }
 443
 444         skb = skb_share_check(skb, GFP_ATOMIC);
 445         if (!skb)
 446                 return -1;
 447
 448         if (unlikely(eth_hdr(skb)->h_proto != htons(ETH_P_FCOE))) {
 449                 printk(KERN_ERR PFX "bnx2fc_rcv: Wrong FC type frame\n");
 450                 goto err;
 451         }
 452
 453         /*
 454          * Check for minimum frame length, and make sure required FCoE
 455          * and FC headers are pulled into the linear data area.
 456          */
 457         if (unlikely((skb->len < FCOE_MIN_FRAME) ||
 458             !pskb_may_pull(skb, FCOE_HEADER_LEN)))
 459                 goto err;
 460
 461         skb_set_transport_header(skb, sizeof(struct fcoe_hdr));
 462
 463         fr = fcoe_dev_from_skb(skb);
 464         fr->fr_dev = lport;
 465
 466         bg = &bnx2fc_global;
 467         spin_lock(&bg->fcoe_rx_list.lock);
 468
 469         __skb_queue_tail(&bg->fcoe_rx_list, skb);
 470         if (bg->fcoe_rx_list.qlen == 1)
 471                 wake_up_process(bg->kthread);
 472
 473         spin_unlock(&bg->fcoe_rx_list.lock);
 474
 475         return 0;
 476 err:
 477         kfree_skb(skb);
 478         return -1;
 479 }
 480
 481 static int bnx2fc_l2_rcv_thread(void *arg)
 482 {
 483         struct fcoe_percpu_s *bg = arg;
 484         struct sk_buff *skb;
 485
 486         set_user_nice(current, MIN_NICE);
 487         set_current_state(TASK_INTERRUPTIBLE);
 488         while (!kthread_should_stop()) {
 489                 schedule();
 490                 spin_lock_bh(&bg->fcoe_rx_list.lock);
 491                 while ((skb = __skb_dequeue(&bg->fcoe_rx_list)) != NULL) {
 492                         spin_unlock_bh(&bg->fcoe_rx_list.lock);
 493                         bnx2fc_recv_frame(skb);
 494                         spin_lock_bh(&bg->fcoe_rx_list.lock);
 495                 }
 496                 __set_current_state(TASK_INTERRUPTIBLE);
 497                 spin_unlock_bh(&bg->fcoe_rx_list.lock);
 498         }
 499         __set_current_state(TASK_RUNNING);
 500         return 0;
 501 }
 502
 503
 504 static void bnx2fc_recv_frame(struct sk_buff *skb)
 505 {
 506         u64 crc_err;
 507         u32 fr_len, fr_crc;
 508         struct fc_lport *lport;
 509         struct fcoe_rcv_info *fr;
 510         struct fc_stats *stats;
 511         struct fc_frame_header *fh;
 512         struct fcoe_crc_eof crc_eof;
 513         struct fc_frame *fp;
 514         struct fc_lport *vn_port;
 515         struct fcoe_port *port, *phys_port;
 516         u8 *mac = NULL;
 517         u8 *dest_mac = NULL;
 518         struct fcoe_hdr *hp;
 519         struct bnx2fc_interface *interface;
 520         struct fcoe_ctlr *ctlr;
 521
 522         fr = fcoe_dev_from_skb(skb);
 523         lport = fr->fr_dev;
 524         if (unlikely(lport == NULL)) {
 525                 printk(KERN_ERR PFX "Invalid lport struct\n");
 526                 kfree_skb(skb);
 527                 return;
 528         }
 529
 530         if (skb_is_nonlinear(skb))
 531                 skb_linearize(skb);
 532         mac = eth_hdr(skb)->h_source;
 533         dest_mac = eth_hdr(skb)->h_dest;
 534
 535         /* Pull the header */
 536         hp = (struct fcoe_hdr *) skb_network_header(skb);
 537         fh = (struct fc_frame_header *) skb_transport_header(skb);
 538         skb_pull(skb, sizeof(struct fcoe_hdr));
 539         fr_len = skb->len - sizeof(struct fcoe_crc_eof);
 540
 541         stats = per_cpu_ptr(lport->stats, get_cpu());
 542         stats->RxFrames++;
 543         stats->RxWords += fr_len / FCOE_WORD_TO_BYTE;
 544         put_cpu();
 545
 546         fp = (struct fc_frame *)skb;
 547         fc_frame_init(fp);
 548         fr_dev(fp) = lport;
 549         fr_sof(fp) = hp->fcoe_sof;
 550         if (skb_copy_bits(skb, fr_len, &crc_eof, sizeof(crc_eof))) {
 551                 kfree_skb(skb);
 552                 return;
 553         }
 554         fr_eof(fp) = crc_eof.fcoe_eof;
 555         fr_crc(fp) = crc_eof.fcoe_crc32;
 556         if (pskb_trim(skb, fr_len)) {
 557                 kfree_skb(skb);
 558                 return;
 559         }
 560
 561         phys_port = lport_priv(lport);
 562         interface = phys_port->priv;
 563         ctlr = bnx2fc_to_ctlr(interface);
 564
 565         fh = fc_frame_header_get(fp);
 566
 567         if (ntoh24(&dest_mac[3]) != ntoh24(fh->fh_d_id)) {
 568                 BNX2FC_HBA_DBG(lport, "FC frame d_id mismatch with MAC %pM.\n",
 569                     dest_mac);
 570                 kfree_skb(skb);
 571                 return;
 572         }
 573
 574         vn_port = fc_vport_id_lookup(lport, ntoh24(fh->fh_d_id));
 575         if (vn_port) {
 576                 port = lport_priv(vn_port);
 577                 if (!ether_addr_equal(port->data_src_addr, dest_mac)) {
 578                         BNX2FC_HBA_DBG(lport, "fpma mismatch\n");
 579                         kfree_skb(skb);
 580                         return;
 581                 }
 582         }
 583         if (ctlr->state) {
 584                 if (!ether_addr_equal(mac, ctlr->dest_addr)) {
 585                         BNX2FC_HBA_DBG(lport, "Wrong source address: mac:%pM dest_addr:%pM.\n",
 586                             mac, ctlr->dest_addr);
 587                         kfree_skb(skb);
 588                         return;
 589                 }
 590         }
 591         if (fh->fh_r_ctl == FC_RCTL_DD_SOL_DATA &&
 592             fh->fh_type == FC_TYPE_FCP) {
 593                 /* Drop FCP data. We dont this in L2 path */
 594                 kfree_skb(skb);
 595                 return;
 596         }
 597         if (fh->fh_r_ctl == FC_RCTL_ELS_REQ &&
 598             fh->fh_type == FC_TYPE_ELS) {
 599                 switch (fc_frame_payload_op(fp)) {
 600                 case ELS_LOGO:
 601                         if (ntoh24(fh->fh_s_id) == FC_FID_FLOGI) {
 602                                 /* drop non-FIP LOGO */
 603                                 kfree_skb(skb);
 604                                 return;
 605                         }
 606                         break;
 607                 }
 608         }
 609
 610         if (fh->fh_r_ctl == FC_RCTL_BA_ABTS) {
 611                 /* Drop incoming ABTS */
 612                 kfree_skb(skb);
 613                 return;
 614         }
 615
 616         /*
 617          * If the destination ID from the frame header does not match what we
 618          * have on record for lport and the search for a NPIV port came up
 619          * empty then this is not addressed to our port so simply drop it.
 620          */
 621         if (lport->port_id != ntoh24(fh->fh_d_id) && !vn_port) {
 622                 BNX2FC_HBA_DBG(lport, "Dropping frame due to destination mismatch: lport->port_id=%x fh->d_id=%x.\n",
 623                     lport->port_id, ntoh24(fh->fh_d_id));
 624                 kfree_skb(skb);
 625                 return;
 626         }
 627
 628         fr_crc = le32_to_cpu(fr_crc(fp));
 629
 630         if (unlikely(fr_crc != ~crc32(~0, skb->data, fr_len))) {
 631                 stats = per_cpu_ptr(lport->stats, get_cpu());
 632                 crc_err = (stats->InvalidCRCCount++);
 633                 put_cpu();
 634                 if (crc_err < 5)
 635                         printk(KERN_WARNING PFX "dropping frame with "
 636                                "CRC error\n");
 637                 kfree_skb(skb);
 638                 return;
 639         }
 640         fc_exch_recv(lport, fp);
 641 }
 642
 643 /**
 644  * bnx2fc_percpu_io_thread - thread per cpu for ios
 645  *
 646  * @arg:        ptr to bnx2fc_percpu_info structure
 647  */
 648 static int bnx2fc_percpu_io_thread(void *arg)
 649 {
 650         struct bnx2fc_percpu_s *p = arg;
 651         struct bnx2fc_work *work, *tmp;
 652         LIST_HEAD(work_list);
 653
 654         set_user_nice(current, MIN_NICE);
 655         set_current_state(TASK_INTERRUPTIBLE);
 656         while (!kthread_should_stop()) {
 657                 schedule();
 658                 spin_lock_bh(&p->fp_work_lock);
 659                 while (!list_empty(&p->work_list)) {
 660                         list_splice_init(&p->work_list, &work_list);
 661                         spin_unlock_bh(&p->fp_work_lock);
 662
 663                         list_for_each_entry_safe(work, tmp, &work_list, list) {
 664                                 list_del_init(&work->list);
 665                                 bnx2fc_process_cq_compl(work->tgt, work->wqe,
 666                                                         work->rq_data,
 667                                                         work->num_rq,
 668                                                         work->task);
 669                                 kfree(work);
 670                         }
 671
 672                         spin_lock_bh(&p->fp_work_lock);
 673                 }
 674                 __set_current_state(TASK_INTERRUPTIBLE);
 675                 spin_unlock_bh(&p->fp_work_lock);
 676         }
 677         __set_current_state(TASK_RUNNING);
 678
 679         return 0;
 680 }
 681
 682 static struct fc_host_statistics *bnx2fc_get_host_stats(struct Scsi_Host *shost)
 683 {
 684         struct fc_host_statistics *bnx2fc_stats;
 685         struct fc_lport *lport = shost_priv(shost);
 686         struct fcoe_port *port = lport_priv(lport);
 687         struct bnx2fc_interface *interface = port->priv;
 688         struct bnx2fc_hba *hba = interface->hba;
 689         struct fcoe_statistics_params *fw_stats;
 690         int rc = 0;
 691
 692         fw_stats = (struct fcoe_statistics_params *)hba->stats_buffer;
 693         if (!fw_stats)
 694                 return NULL;
 695
 696         mutex_lock(&hba->hba_stats_mutex);
 697
 698         bnx2fc_stats = fc_get_host_stats(shost);
 699
 700         init_completion(&hba->stat_req_done);
 701         if (bnx2fc_send_stat_req(hba))
 702                 goto unlock_stats_mutex;
 703         rc = wait_for_completion_timeout(&hba->stat_req_done, (2 * HZ));
 704         if (!rc) {
 705                 BNX2FC_HBA_DBG(lport, "FW stat req timed out\n");
 706                 goto unlock_stats_mutex;
 707         }
 708         BNX2FC_STATS(hba, rx_stat2, fc_crc_cnt);
 709         bnx2fc_stats->invalid_crc_count += hba->bfw_stats.fc_crc_cnt;
 710         BNX2FC_STATS(hba, tx_stat, fcoe_tx_pkt_cnt);
 711         bnx2fc_stats->tx_frames += hba->bfw_stats.fcoe_tx_pkt_cnt;
 712         BNX2FC_STATS(hba, tx_stat, fcoe_tx_byte_cnt);
 713         bnx2fc_stats->tx_words += ((hba->bfw_stats.fcoe_tx_byte_cnt) / 4);
 714         BNX2FC_STATS(hba, rx_stat0, fcoe_rx_pkt_cnt);
 715         bnx2fc_stats->rx_frames += hba->bfw_stats.fcoe_rx_pkt_cnt;
 716         BNX2FC_STATS(hba, rx_stat0, fcoe_rx_byte_cnt);
 717         bnx2fc_stats->rx_words += ((hba->bfw_stats.fcoe_rx_byte_cnt) / 4);
 718
 719         bnx2fc_stats->dumped_frames = 0;
 720         bnx2fc_stats->lip_count = 0;
 721         bnx2fc_stats->nos_count = 0;
 722         bnx2fc_stats->loss_of_sync_count = 0;
 723         bnx2fc_stats->loss_of_signal_count = 0;
 724         bnx2fc_stats->prim_seq_protocol_err_count = 0;
 725
 726         memcpy(&hba->prev_stats, hba->stats_buffer,
 727                sizeof(struct fcoe_statistics_params));
 728
 729 unlock_stats_mutex:
 730         mutex_unlock(&hba->hba_stats_mutex);
 731         return bnx2fc_stats;
 732 }
 733
 734 static int bnx2fc_shost_config(struct fc_lport *lport, struct device *dev)
 735 {
 736         struct fcoe_port *port = lport_priv(lport);
 737         struct bnx2fc_interface *interface = port->priv;
 738         struct bnx2fc_hba *hba = interface->hba;
 739         struct Scsi_Host *shost = lport->host;
 740         int rc = 0;
 741
 742         shost->max_cmd_len = BNX2FC_MAX_CMD_LEN;
 743         shost->max_lun = bnx2fc_max_luns;
 744         shost->max_id = BNX2FC_MAX_FCP_TGT;
 745         shost->max_channel = 0;
 746         if (lport->vport)
 747                 shost->transportt = bnx2fc_vport_xport_template;
 748         else
 749                 shost->transportt = bnx2fc_transport_template;
 750
 751         /* Add the new host to SCSI-ml */
 752         rc = scsi_add_host(lport->host, dev);
 753         if (rc) {
 754                 printk(KERN_ERR PFX "Error on scsi_add_host\n");
 755                 return rc;
 756         }
 757         if (!lport->vport)
 758                 fc_host_max_npiv_vports(lport->host) = USHRT_MAX;
 759         snprintf(fc_host_symbolic_name(lport->host), 256,
 760                  "%s (QLogic %s) v%s over %s",
 761                 BNX2FC_NAME, hba->chip_num, BNX2FC_VERSION,
 762                 interface->netdev->name);
 763
 764         return 0;
 765 }
 766
 767 static int bnx2fc_link_ok(struct fc_lport *lport)
 768 {
 769         struct fcoe_port *port = lport_priv(lport);
 770         struct bnx2fc_interface *interface = port->priv;
 771         struct bnx2fc_hba *hba = interface->hba;
 772         struct net_device *dev = hba->phys_dev;
 773         int rc = 0;
 774
 775         if ((dev->flags & IFF_UP) && netif_carrier_ok(dev))
 776                 clear_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
 777         else {
 778                 set_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
 779                 rc = -1;
 780         }
 781         return rc;
 782 }
 783
 784 /**
 785  * bnx2fc_get_link_state - get network link state
 786  *
 787  * @hba:        adapter instance pointer
 788  *
 789  * updates adapter structure flag based on netdev state
 790  */
 791 void bnx2fc_get_link_state(struct bnx2fc_hba *hba)
 792 {
 793         if (test_bit(__LINK_STATE_NOCARRIER, &hba->phys_dev->state))
 794                 set_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
 795         else
 796                 clear_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
 797 }
 798
 799 static int bnx2fc_net_config(struct fc_lport *lport, struct net_device *netdev)
 800 {
 801         struct bnx2fc_hba *hba;
 802         struct bnx2fc_interface *interface;
 803         struct fcoe_ctlr *ctlr;
 804         struct fcoe_port *port;
 805         u64 wwnn, wwpn;
 806
 807         port = lport_priv(lport);
 808         interface = port->priv;
 809         ctlr = bnx2fc_to_ctlr(interface);
 810         hba = interface->hba;
 811
 812         /* require support for get_pauseparam ethtool op. */
 813         if (!hba->phys_dev->ethtool_ops ||
 814             !hba->phys_dev->ethtool_ops->get_pauseparam)
 815                 return -EOPNOTSUPP;
 816
 817         if (fc_set_mfs(lport, BNX2FC_MFS))
 818                 return -EINVAL;
 819
 820         skb_queue_head_init(&port->fcoe_pending_queue);
 821         port->fcoe_pending_queue_active = 0;
 822         timer_setup(&port->timer, fcoe_queue_timer, 0);
 823
 824         fcoe_link_speed_update(lport);
 825
 826         if (!lport->vport) {
 827                 if (fcoe_get_wwn(netdev, &wwnn, NETDEV_FCOE_WWNN))
 828                         wwnn = fcoe_wwn_from_mac(ctlr->ctl_src_addr,
 829                                                  1, 0);
 830                 BNX2FC_HBA_DBG(lport, "WWNN = 0x%llx\n", wwnn);
 831                 fc_set_wwnn(lport, wwnn);
 832
 833                 if (fcoe_get_wwn(netdev, &wwpn, NETDEV_FCOE_WWPN))
 834                         wwpn = fcoe_wwn_from_mac(ctlr->ctl_src_addr,
 835                                                  2, 0);
 836
 837                 BNX2FC_HBA_DBG(lport, "WWPN = 0x%llx\n", wwpn);
 838                 fc_set_wwpn(lport, wwpn);
 839         }
 840
 841         return 0;
 842 }
 843
 844 static void bnx2fc_destroy_timer(struct timer_list *t)
 845 {
 846         struct bnx2fc_hba *hba = from_timer(hba, t, destroy_timer);
 847
 848         printk(KERN_ERR PFX "ERROR:bnx2fc_destroy_timer - "
 849                "Destroy compl not received!!\n");
 850         set_bit(BNX2FC_FLAG_DESTROY_CMPL, &hba->flags);
 851         wake_up_interruptible(&hba->destroy_wait);
 852 }
 853
 854 /**
 855  * bnx2fc_indicate_netevent - Generic netdev event handler
 856  *
 857  * @context:    adapter structure pointer
 858  * @event:      event type
 859  * @vlan_id:    vlan id - associated vlan id with this event
 860  *
 861  * Handles NETDEV_UP, NETDEV_DOWN, NETDEV_GOING_DOWN,NETDEV_CHANGE and
 862  * NETDEV_CHANGE_MTU events. Handle NETDEV_UNREGISTER only for vlans.
 863  */
 864 static void bnx2fc_indicate_netevent(void *context, unsigned long event,
 865                                      u16 vlan_id)
 866 {
 867         struct bnx2fc_hba *hba = (struct bnx2fc_hba *)context;
 868         struct fcoe_ctlr_device *cdev;
 869         struct fc_lport *lport;
 870         struct fc_lport *vport;
 871         struct bnx2fc_interface *interface, *tmp;
 872         struct fcoe_ctlr *ctlr;
 873         int wait_for_upload = 0;
 874         u32 link_possible = 1;
 875
 876         if (vlan_id != 0 && event != NETDEV_UNREGISTER)
 877                 return;
 878
 879         switch (event) {
 880         case NETDEV_UP:
 881                 if (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state))
 882                         printk(KERN_ERR "indicate_netevent: "\
 883                                         "hba is not UP!!\n");
 884                 break;
 885
 886         case NETDEV_DOWN:
 887                 clear_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state);
 888                 clear_bit(ADAPTER_STATE_UP, &hba->adapter_state);
 889                 link_possible = 0;
 890                 break;
 891
 892         case NETDEV_GOING_DOWN:
 893                 set_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state);
 894                 link_possible = 0;
 895                 break;
 896
 897         case NETDEV_CHANGE:
 898                 break;
 899
 900         case NETDEV_UNREGISTER:
 901                 if (!vlan_id)
 902                         return;
 903                 mutex_lock(&bnx2fc_dev_lock);
 904                 list_for_each_entry_safe(interface, tmp, &if_list, list) {
 905                         if (interface->hba == hba &&
 906                             interface->vlan_id == (vlan_id & VLAN_VID_MASK))
 907                                 __bnx2fc_destroy(interface);
 908                 }
 909                 mutex_unlock(&bnx2fc_dev_lock);
 910                 return;
 911
 912         default:
 913                 return;
 914         }
 915
 916         mutex_lock(&bnx2fc_dev_lock);
 917         list_for_each_entry(interface, &if_list, list) {
 918
 919                 if (interface->hba != hba)
 920                         continue;
 921
 922                 ctlr = bnx2fc_to_ctlr(interface);
 923                 lport = ctlr->lp;
 924                 BNX2FC_HBA_DBG(lport, "netevent handler - event=%s %ld\n",
 925                                 interface->netdev->name, event);
 926
 927                 fcoe_link_speed_update(lport);
 928
 929                 cdev = fcoe_ctlr_to_ctlr_dev(ctlr);
 930
 931                 if (link_possible && !bnx2fc_link_ok(lport)) {
 932                         switch (cdev->enabled) {
 933                         case FCOE_CTLR_DISABLED:
 934                                 pr_info("Link up while interface is disabled.\n");
 935                                 break;
 936                         case FCOE_CTLR_ENABLED:
 937                         case FCOE_CTLR_UNUSED:
 938                                 /* Reset max recv frame size to default */
 939                                 fc_set_mfs(lport, BNX2FC_MFS);
 940                                 /*
 941                                  * ctlr link up will only be handled during
 942                                  * enable to avoid sending discovery
 943                                  * solicitation on a stale vlan
 944                                  */
 945                                 if (interface->enabled)
 946                                         fcoe_ctlr_link_up(ctlr);
 947                         }
 948                 } else if (fcoe_ctlr_link_down(ctlr)) {
 949                         switch (cdev->enabled) {
 950                         case FCOE_CTLR_DISABLED:
 951                                 pr_info("Link down while interface is disabled.\n");
 952                                 break;
 953                         case FCOE_CTLR_ENABLED:
 954                         case FCOE_CTLR_UNUSED:
 955                                 mutex_lock(&lport->lp_mutex);
 956                                 list_for_each_entry(vport, &lport->vports, list)
 957                                         fc_host_port_type(vport->host) =
 958                                         FC_PORTTYPE_UNKNOWN;
 959                                 mutex_unlock(&lport->lp_mutex);
 960                                 fc_host_port_type(lport->host) =
 961                                         FC_PORTTYPE_UNKNOWN;
 962                                 per_cpu_ptr(lport->stats,
 963                                             get_cpu())->LinkFailureCount++;
 964                                 put_cpu();
 965                                 fcoe_clean_pending_queue(lport);
 966                                 wait_for_upload = 1;
 967                         }
 968                 }
 969         }
 970         mutex_unlock(&bnx2fc_dev_lock);
 971
 972         if (wait_for_upload) {
 973                 clear_bit(ADAPTER_STATE_READY, &hba->adapter_state);
 974                 init_waitqueue_head(&hba->shutdown_wait);
 975                 BNX2FC_MISC_DBG("indicate_netevent "
 976                                 "num_ofld_sess = %d\n",
 977                                 hba->num_ofld_sess);
 978                 hba->wait_for_link_down = 1;
 979                 wait_event_interruptible(hba->shutdown_wait,
 980                                          (hba->num_ofld_sess == 0));
 981                 BNX2FC_MISC_DBG("wakeup - num_ofld_sess = %d\n",
 982                                 hba->num_ofld_sess);
 983                 hba->wait_for_link_down = 0;
 984
 985                 if (signal_pending(current))
 986                         flush_signals(current);
 987         }
 988 }
 989
 990 static int bnx2fc_libfc_config(struct fc_lport *lport)
 991 {
 992
 993         /* Set the function pointers set by bnx2fc driver */
 994         memcpy(&lport->tt, &bnx2fc_libfc_fcn_templ,
 995                 sizeof(struct libfc_function_template));
 996         fc_elsct_init(lport);
 997         fc_exch_init(lport);
 998         fc_disc_init(lport);
 999         fc_disc_config(lport, lport);
1000         return 0;
1001 }
1002
1003 static int bnx2fc_em_config(struct fc_lport *lport, struct bnx2fc_hba *hba)
1004 {
1005         int fcoe_min_xid, fcoe_max_xid;
1006
1007         fcoe_min_xid = hba->max_xid + 1;
1008         if (nr_cpu_ids <= 2)
1009                 fcoe_max_xid = hba->max_xid + FCOE_XIDS_PER_CPU_OFFSET;
1010         else
1011                 fcoe_max_xid = hba->max_xid + FCOE_MAX_XID_OFFSET;
1012         if (!fc_exch_mgr_alloc(lport, FC_CLASS_3, fcoe_min_xid,
1013                                fcoe_max_xid, NULL)) {
1014                 printk(KERN_ERR PFX "em_config:fc_exch_mgr_alloc failed\n");
1015                 return -ENOMEM;
1016         }
1017
1018         return 0;
1019 }
1020
1021 static int bnx2fc_lport_config(struct fc_lport *lport)
1022 {
1023         lport->link_up = 0;
1024         lport->qfull = 0;
1025         lport->max_retry_count = BNX2FC_MAX_RETRY_CNT;
1026         lport->max_rport_retry_count = BNX2FC_MAX_RPORT_RETRY_CNT;
1027         lport->e_d_tov = 2 * 1000;
1028         lport->r_a_tov = 10 * 1000;
1029
1030         lport->service_params = (FCP_SPPF_INIT_FCN | FCP_SPPF_RD_XRDY_DIS |
1031                                 FCP_SPPF_RETRY | FCP_SPPF_CONF_COMPL);
1032         lport->does_npiv = 1;
1033
1034         memset(&lport->rnid_gen, 0, sizeof(struct fc_els_rnid_gen));
1035         lport->rnid_gen.rnid_atype = BNX2FC_RNID_HBA;
1036
1037         /* alloc stats structure */
1038         if (fc_lport_init_stats(lport))
1039                 return -ENOMEM;
1040
1041         /* Finish fc_lport configuration */
1042         fc_lport_config(lport);
1043
1044         return 0;
1045 }
1046
1047 /**
1048  * bnx2fc_fip_recv - handle a received FIP frame.
1049  *
1050  * @skb: the received skb
1051  * @dev: associated &net_device
1052  * @ptype: the &packet_type structure which was used to register this handler.
1053  * @orig_dev: original receive &net_device, in case @ dev is a bond.
1054  *
1055  * Returns: 0 for success
1056  */
1057 static int bnx2fc_fip_recv(struct sk_buff *skb, struct net_device *dev,
1058                            struct packet_type *ptype,
1059                            struct net_device *orig_dev)
1060 {
1061         struct bnx2fc_interface *interface;
1062         struct fcoe_ctlr *ctlr;
1063         interface = container_of(ptype, struct bnx2fc_interface,
1064                                  fip_packet_type);
1065         ctlr = bnx2fc_to_ctlr(interface);
1066         fcoe_ctlr_recv(ctlr, skb);
1067         return 0;
1068 }
1069
1070 /**
1071  * bnx2fc_update_src_mac - Update Ethernet MAC filters.
1072  *
1073  * @lport: The local port
1074  * @addr: Location of data to copy
1075  *
1076  * Remove any previously-set unicast MAC filter.
1077  * Add secondary FCoE MAC address filter for our OUI.
1078  */
1079 static void bnx2fc_update_src_mac(struct fc_lport *lport, u8 *addr)
1080 {
1081         struct fcoe_port *port = lport_priv(lport);
1082
1083         memcpy(port->data_src_addr, addr, ETH_ALEN);
1084 }
1085
1086 /**
1087  * bnx2fc_get_src_mac - return the ethernet source address for an lport
1088  *
1089  * @lport: libfc port
1090  */
1091 static u8 *bnx2fc_get_src_mac(struct fc_lport *lport)
1092 {
1093         struct fcoe_port *port;
1094
1095         port = (struct fcoe_port *)lport_priv(lport);
1096         return port->data_src_addr;
1097 }
1098
1099 /**
1100  * bnx2fc_fip_send - send an Ethernet-encapsulated FIP frame.
1101  *
1102  * @fip: FCoE controller.
1103  * @skb: FIP Packet.
1104  */
1105 static void bnx2fc_fip_send(struct fcoe_ctlr *fip, struct sk_buff *skb)
1106 {
1107         struct fip_header *fiph;
1108         struct ethhdr *eth_hdr;
1109         u16 op;
1110         u8 sub;
1111
1112         fiph = (struct fip_header *) ((void *)skb->data + 2 * ETH_ALEN + 2);
1113         eth_hdr = (struct ethhdr *)skb_mac_header(skb);
1114         op = ntohs(fiph->fip_op);
1115         sub = fiph->fip_subcode;
1116
1117         if (op == FIP_OP_CTRL && sub == FIP_SC_SOL && bnx2fc_log_fka)
1118                 BNX2FC_MISC_DBG("Sending FKA from %pM to %pM.\n",
1119                     eth_hdr->h_source, eth_hdr->h_dest);
1120
1121         skb->dev = bnx2fc_from_ctlr(fip)->netdev;
1122         dev_queue_xmit(skb);
1123 }
1124
1125 static int bnx2fc_vport_create(struct fc_vport *vport, bool disabled)
1126 {
1127         struct Scsi_Host *shost = vport_to_shost(vport);
1128         struct fc_lport *n_port = shost_priv(shost);
1129         struct fcoe_port *port = lport_priv(n_port);
1130         struct bnx2fc_interface *interface = port->priv;
1131         struct net_device *netdev = interface->netdev;
1132         struct fc_lport *vn_port;
1133         int rc;
1134         char buf[32];
1135
1136         rc = fcoe_validate_vport_create(vport);
1137         if (rc) {
1138                 fcoe_wwn_to_str(vport->port_name, buf, sizeof(buf));
1139                 printk(KERN_ERR PFX "Failed to create vport, "
1140                        "WWPN (0x%s) already exists\n",
1141                        buf);
1142                 return rc;
1143         }
1144
1145         if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &interface->hba->flags)) {
1146                 printk(KERN_ERR PFX "vn ports cannot be created on"
1147                         "this interface\n");
1148                 return -EIO;
1149         }
1150         rtnl_lock();
1151         mutex_lock(&bnx2fc_dev_lock);
1152         vn_port = bnx2fc_if_create(interface, &vport->dev, 1);
1153         mutex_unlock(&bnx2fc_dev_lock);
1154         rtnl_unlock();
1155
1156         if (!vn_port) {
1157                 printk(KERN_ERR PFX "bnx2fc_vport_create (%s) failed\n",
1158                         netdev->name);
1159                 return -EIO;
1160         }
1161
1162         if (bnx2fc_devloss_tmo)
1163                 fc_host_dev_loss_tmo(vn_port->host) = bnx2fc_devloss_tmo;
1164
1165         if (disabled) {
1166                 fc_vport_set_state(vport, FC_VPORT_DISABLED);
1167         } else {
1168                 vn_port->boot_time = jiffies;
1169                 fc_lport_init(vn_port);
1170                 fc_fabric_login(vn_port);
1171                 fc_vport_setlink(vn_port);
1172         }
1173         return 0;
1174 }
1175
1176 static void bnx2fc_free_vport(struct bnx2fc_hba *hba, struct fc_lport *lport)
1177 {
1178         struct bnx2fc_lport *blport, *tmp;
1179
1180         spin_lock_bh(&hba->hba_lock);
1181         list_for_each_entry_safe(blport, tmp, &hba->vports, list) {
1182                 if (blport->lport == lport) {
1183                         list_del(&blport->list);
1184                         kfree(blport);
1185                 }
1186         }
1187         spin_unlock_bh(&hba->hba_lock);
1188 }
1189
1190 static int bnx2fc_vport_destroy(struct fc_vport *vport)
1191 {
1192         struct Scsi_Host *shost = vport_to_shost(vport);
1193         struct fc_lport *n_port = shost_priv(shost);
1194         struct fc_lport *vn_port = vport->dd_data;
1195         struct fcoe_port *port = lport_priv(vn_port);
1196         struct bnx2fc_interface *interface = port->priv;
1197         struct fc_lport *v_port;
1198         bool found = false;
1199
1200         mutex_lock(&n_port->lp_mutex);
1201         list_for_each_entry(v_port, &n_port->vports, list)
1202                 if (v_port->vport == vport) {
1203                         found = true;
1204                         break;
1205                 }
1206
1207         if (!found) {
1208                 mutex_unlock(&n_port->lp_mutex);
1209                 return -ENOENT;
1210         }
1211         list_del(&vn_port->list);
1212         mutex_unlock(&n_port->lp_mutex);
1213         bnx2fc_free_vport(interface->hba, port->lport);
1214         bnx2fc_port_shutdown(port->lport);
1215         bnx2fc_port_destroy(port);
1216         bnx2fc_interface_put(interface);
1217         return 0;
1218 }
1219
1220 static int bnx2fc_vport_disable(struct fc_vport *vport, bool disable)
1221 {
1222         struct fc_lport *lport = vport->dd_data;
1223
1224         if (disable) {
1225                 fc_vport_set_state(vport, FC_VPORT_DISABLED);
1226                 fc_fabric_logoff(lport);
1227         } else {
1228                 lport->boot_time = jiffies;
1229                 fc_fabric_login(lport);
1230                 fc_vport_setlink(lport);
1231         }
1232         return 0;
1233 }
1234
1235
1236 static int bnx2fc_interface_setup(struct bnx2fc_interface *interface)
1237 {
1238         struct net_device *netdev = interface->netdev;
1239         struct net_device *physdev = interface->hba->phys_dev;
1240         struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface);
1241         struct netdev_hw_addr *ha;
1242         int sel_san_mac = 0;
1243
1244         /* setup Source MAC Address */
1245         rcu_read_lock();
1246         for_each_dev_addr(physdev, ha) {
1247                 BNX2FC_MISC_DBG("net_config: ha->type = %d, fip_mac = ",
1248                                 ha->type);
1249                 printk(KERN_INFO "%2x:%2x:%2x:%2x:%2x:%2x\n", ha->addr[0],
1250                                 ha->addr[1], ha->addr[2], ha->addr[3],
1251                                 ha->addr[4], ha->addr[5]);
1252
1253                 if ((ha->type == NETDEV_HW_ADDR_T_SAN) &&
1254                     (is_valid_ether_addr(ha->addr))) {
1255                         memcpy(ctlr->ctl_src_addr, ha->addr,
1256                                ETH_ALEN);
1257                         sel_san_mac = 1;
1258                         BNX2FC_MISC_DBG("Found SAN MAC\n");
1259                 }
1260         }
1261         rcu_read_unlock();
1262
1263         if (!sel_san_mac)
1264                 return -ENODEV;
1265
1266         interface->fip_packet_type.func = bnx2fc_fip_recv;
1267         interface->fip_packet_type.type = htons(ETH_P_FIP);
1268         interface->fip_packet_type.dev = netdev;
1269         dev_add_pack(&interface->fip_packet_type);
1270
1271         interface->fcoe_packet_type.func = bnx2fc_rcv;
1272         interface->fcoe_packet_type.type = __constant_htons(ETH_P_FCOE);
1273         interface->fcoe_packet_type.dev = netdev;
1274         dev_add_pack(&interface->fcoe_packet_type);
1275
1276         return 0;
1277 }
1278
1279 static int bnx2fc_attach_transport(void)
1280 {
1281         bnx2fc_transport_template =
1282                 fc_attach_transport(&bnx2fc_transport_function);
1283
1284         if (bnx2fc_transport_template == NULL) {
1285                 printk(KERN_ERR PFX "Failed to attach FC transport\n");
1286                 return -ENODEV;
1287         }
1288
1289         bnx2fc_vport_xport_template =
1290                 fc_attach_transport(&bnx2fc_vport_xport_function);
1291         if (bnx2fc_vport_xport_template == NULL) {
1292                 printk(KERN_ERR PFX
1293                        "Failed to attach FC transport for vport\n");
1294                 fc_release_transport(bnx2fc_transport_template);
1295                 bnx2fc_transport_template = NULL;
1296                 return -ENODEV;
1297         }
1298         return 0;
1299 }
1300 static void bnx2fc_release_transport(void)
1301 {
1302         fc_release_transport(bnx2fc_transport_template);
1303         fc_release_transport(bnx2fc_vport_xport_template);
1304         bnx2fc_transport_template = NULL;
1305         bnx2fc_vport_xport_template = NULL;
1306 }
1307
1308 static void bnx2fc_interface_release(struct kref *kref)
1309 {
1310         struct fcoe_ctlr_device *ctlr_dev;
1311         struct bnx2fc_interface *interface;
1312         struct fcoe_ctlr *ctlr;
1313         struct net_device *netdev;
1314
1315         interface = container_of(kref, struct bnx2fc_interface, kref);
1316         BNX2FC_MISC_DBG("Interface is being released\n");
1317
1318         ctlr = bnx2fc_to_ctlr(interface);
1319         ctlr_dev = fcoe_ctlr_to_ctlr_dev(ctlr);
1320         netdev = interface->netdev;
1321
1322         /* tear-down FIP controller */
1323         if (test_and_clear_bit(BNX2FC_CTLR_INIT_DONE, &interface->if_flags))
1324                 fcoe_ctlr_destroy(ctlr);
1325
1326         fcoe_ctlr_device_delete(ctlr_dev);
1327
1328         dev_put(netdev);
1329         module_put(THIS_MODULE);
1330 }
1331
1332 static inline void bnx2fc_interface_get(struct bnx2fc_interface *interface)
1333 {
1334         kref_get(&interface->kref);
1335 }
1336
1337 static inline void bnx2fc_interface_put(struct bnx2fc_interface *interface)
1338 {
1339         kref_put(&interface->kref, bnx2fc_interface_release);
1340 }
1341 static void bnx2fc_hba_destroy(struct bnx2fc_hba *hba)
1342 {
1343         /* Free the command manager */
1344         if (hba->cmd_mgr) {
1345                 bnx2fc_cmd_mgr_free(hba->cmd_mgr);
1346                 hba->cmd_mgr = NULL;
1347         }
1348         kfree(hba->tgt_ofld_list);
1349         bnx2fc_unbind_pcidev(hba);
1350         kfree(hba);
1351 }
1352
1353 /**
1354  * bnx2fc_hba_create - create a new bnx2fc hba
1355  *
1356  * @cnic:       pointer to cnic device
1357  *
1358  * Creates a new FCoE hba on the given device.
1359  *
1360  */
1361 static struct bnx2fc_hba *bnx2fc_hba_create(struct cnic_dev *cnic)
1362 {
1363         struct bnx2fc_hba *hba;
1364         struct fcoe_capabilities *fcoe_cap;
1365         int rc;
1366
1367         hba = kzalloc(sizeof(*hba), GFP_KERNEL);
1368         if (!hba) {
1369                 printk(KERN_ERR PFX "Unable to allocate hba structure\n");
1370                 return NULL;
1371         }
1372         spin_lock_init(&hba->hba_lock);
1373         mutex_init(&hba->hba_mutex);
1374         mutex_init(&hba->hba_stats_mutex);
1375
1376         hba->cnic = cnic;
1377
1378         hba->max_tasks = cnic->max_fcoe_exchanges;
1379         hba->elstm_xids = (hba->max_tasks / 2);
1380         hba->max_outstanding_cmds = hba->elstm_xids;
1381         hba->max_xid = (hba->max_tasks - 1);
1382
1383         rc = bnx2fc_bind_pcidev(hba);
1384         if (rc) {
1385                 printk(KERN_ERR PFX "create_adapter:  bind error\n");
1386                 goto bind_err;
1387         }
1388         hba->phys_dev = cnic->netdev;
1389         hba->next_conn_id = 0;
1390
1391         hba->tgt_ofld_list =
1392                 kcalloc(BNX2FC_NUM_MAX_SESS, sizeof(struct bnx2fc_rport *),
1393                         GFP_KERNEL);
1394         if (!hba->tgt_ofld_list) {
1395                 printk(KERN_ERR PFX "Unable to allocate tgt offload list\n");
1396                 goto tgtofld_err;
1397         }
1398
1399         hba->num_ofld_sess = 0;
1400
1401         hba->cmd_mgr = bnx2fc_cmd_mgr_alloc(hba);
1402         if (!hba->cmd_mgr) {
1403                 printk(KERN_ERR PFX "em_config:bnx2fc_cmd_mgr_alloc failed\n");
1404                 goto cmgr_err;
1405         }
1406         fcoe_cap = &hba->fcoe_cap;
1407
1408         fcoe_cap->capability1 = BNX2FC_TM_MAX_SQES <<
1409                                         FCOE_IOS_PER_CONNECTION_SHIFT;
1410         fcoe_cap->capability1 |= BNX2FC_NUM_MAX_SESS <<
1411                                         FCOE_LOGINS_PER_PORT_SHIFT;
1412         fcoe_cap->capability2 = hba->max_outstanding_cmds <<
1413                                         FCOE_NUMBER_OF_EXCHANGES_SHIFT;
1414         fcoe_cap->capability2 |= BNX2FC_MAX_NPIV <<
1415                                         FCOE_NPIV_WWN_PER_PORT_SHIFT;
1416         fcoe_cap->capability3 = BNX2FC_NUM_MAX_SESS <<
1417                                         FCOE_TARGETS_SUPPORTED_SHIFT;
1418         fcoe_cap->capability3 |= hba->max_outstanding_cmds <<
1419                                         FCOE_OUTSTANDING_COMMANDS_SHIFT;
1420         fcoe_cap->capability4 = FCOE_CAPABILITY4_STATEFUL;
1421
1422         init_waitqueue_head(&hba->shutdown_wait);
1423         init_waitqueue_head(&hba->destroy_wait);
1424         INIT_LIST_HEAD(&hba->vports);
1425
1426         return hba;
1427
1428 cmgr_err:
1429         kfree(hba->tgt_ofld_list);
1430 tgtofld_err:
1431         bnx2fc_unbind_pcidev(hba);
1432 bind_err:
1433         kfree(hba);
1434         return NULL;
1435 }
1436
1437 static struct bnx2fc_interface *
1438 bnx2fc_interface_create(struct bnx2fc_hba *hba,
1439                         struct net_device *netdev,
1440                         enum fip_mode fip_mode)
1441 {
1442         struct fcoe_ctlr_device *ctlr_dev;
1443         struct bnx2fc_interface *interface;
1444         struct fcoe_ctlr *ctlr;
1445         int size;
1446         int rc = 0;
1447
1448         size = (sizeof(*interface) + sizeof(struct fcoe_ctlr));
1449         ctlr_dev = fcoe_ctlr_device_add(&netdev->dev, &bnx2fc_fcoe_sysfs_templ,
1450                                          size);
1451         if (!ctlr_dev) {
1452                 printk(KERN_ERR PFX "Unable to allocate interface structure\n");
1453                 return NULL;
1454         }
1455         ctlr = fcoe_ctlr_device_priv(ctlr_dev);
1456         ctlr->cdev = ctlr_dev;
1457         interface = fcoe_ctlr_priv(ctlr);
1458         dev_hold(netdev);
1459         kref_init(&interface->kref);
1460         interface->hba = hba;
1461         interface->netdev = netdev;
1462
1463         /* Initialize FIP */
1464         fcoe_ctlr_init(ctlr, fip_mode);
1465         ctlr->send = bnx2fc_fip_send;
1466         ctlr->update_mac = bnx2fc_update_src_mac;
1467         ctlr->get_src_addr = bnx2fc_get_src_mac;
1468         set_bit(BNX2FC_CTLR_INIT_DONE, &interface->if_flags);
1469
1470         rc = bnx2fc_interface_setup(interface);
1471         if (!rc)
1472                 return interface;
1473
1474         fcoe_ctlr_destroy(ctlr);
1475         dev_put(netdev);
1476         fcoe_ctlr_device_delete(ctlr_dev);
1477         return NULL;
1478 }
1479
1480 /**
1481  * bnx2fc_if_create - Create FCoE instance on a given interface
1482  *
1483  * @interface:  FCoE interface to create a local port on
1484  * @parent:     Device pointer to be the parent in sysfs for the SCSI host
1485  * @npiv:       Indicates if the port is vport or not
1486  *
1487  * Creates a fc_lport instance and a Scsi_Host instance and configure them.
1488  *
1489  * Returns:     Allocated fc_lport or an error pointer
1490  */
1491 static struct fc_lport *bnx2fc_if_create(struct bnx2fc_interface *interface,
1492                                   struct device *parent, int npiv)
1493 {
1494         struct fcoe_ctlr        *ctlr = bnx2fc_to_ctlr(interface);
1495         struct fc_lport         *lport, *n_port;
1496         struct fcoe_port        *port;
1497         struct Scsi_Host        *shost;
1498         struct fc_vport         *vport = dev_to_vport(parent);
1499         struct bnx2fc_lport     *blport;
1500         struct bnx2fc_hba       *hba = interface->hba;
1501         int                     rc = 0;
1502
1503         blport = kzalloc(sizeof(struct bnx2fc_lport), GFP_KERNEL);
1504         if (!blport) {
1505                 BNX2FC_HBA_DBG(ctlr->lp, "Unable to alloc blport\n");
1506                 return NULL;
1507         }
1508
1509         /* Allocate Scsi_Host structure */
1510         bnx2fc_shost_template.can_queue = hba->max_outstanding_cmds;
1511         if (!npiv)
1512                 lport = libfc_host_alloc(&bnx2fc_shost_template, sizeof(*port));
1513         else
1514                 lport = libfc_vport_create(vport, sizeof(*port));
1515
1516         if (!lport) {
1517                 printk(KERN_ERR PFX "could not allocate scsi host structure\n");
1518                 goto free_blport;
1519         }
1520         shost = lport->host;
1521         port = lport_priv(lport);
1522         port->lport = lport;
1523         port->priv = interface;
1524         port->get_netdev = bnx2fc_netdev;
1525
1526         /* Configure fcoe_port */
1527         rc = bnx2fc_lport_config(lport);
1528         if (rc)
1529                 goto lp_config_err;
1530
1531         if (npiv) {
1532                 printk(KERN_ERR PFX "Setting vport names, 0x%llX 0x%llX\n",
1533                         vport->node_name, vport->port_name);
1534                 fc_set_wwnn(lport, vport->node_name);
1535                 fc_set_wwpn(lport, vport->port_name);
1536         }
1537         /* Configure netdev and networking properties of the lport */
1538         rc = bnx2fc_net_config(lport, interface->netdev);
1539         if (rc) {
1540                 printk(KERN_ERR PFX "Error on bnx2fc_net_config\n");
1541                 goto lp_config_err;
1542         }
1543
1544         rc = bnx2fc_shost_config(lport, parent);
1545         if (rc) {
1546                 printk(KERN_ERR PFX "Couldn't configure shost for %s\n",
1547                         interface->netdev->name);
1548                 goto lp_config_err;
1549         }
1550
1551         /* Initialize the libfc library */
1552         rc = bnx2fc_libfc_config(lport);
1553         if (rc) {
1554                 printk(KERN_ERR PFX "Couldn't configure libfc\n");
1555                 goto shost_err;
1556         }
1557         fc_host_port_type(lport->host) = FC_PORTTYPE_UNKNOWN;
1558
1559         if (bnx2fc_devloss_tmo)
1560                 fc_host_dev_loss_tmo(shost) = bnx2fc_devloss_tmo;
1561
1562         /* Allocate exchange manager */
1563         if (!npiv)
1564                 rc = bnx2fc_em_config(lport, hba);
1565         else {
1566                 shost = vport_to_shost(vport);
1567                 n_port = shost_priv(shost);
1568                 rc = fc_exch_mgr_list_clone(n_port, lport);
1569         }
1570
1571         if (rc) {
1572                 printk(KERN_ERR PFX "Error on bnx2fc_em_config\n");
1573                 goto shost_err;
1574         }
1575
1576         bnx2fc_interface_get(interface);
1577
1578         spin_lock_bh(&hba->hba_lock);
1579         blport->lport = lport;
1580         list_add_tail(&blport->list, &hba->vports);
1581         spin_unlock_bh(&hba->hba_lock);
1582
1583         return lport;
1584
1585 shost_err:
1586         scsi_remove_host(shost);
1587 lp_config_err:
1588         scsi_host_put(lport->host);
1589 free_blport:
1590         kfree(blport);
1591         return NULL;
1592 }
1593
1594 static void bnx2fc_net_cleanup(struct bnx2fc_interface *interface)
1595 {
1596         /* Dont listen for Ethernet packets anymore */
1597         __dev_remove_pack(&interface->fcoe_packet_type);
1598         __dev_remove_pack(&interface->fip_packet_type);
1599         synchronize_net();
1600 }
1601
1602 static void bnx2fc_interface_cleanup(struct bnx2fc_interface *interface)
1603 {
1604         struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface);
1605         struct fc_lport *lport = ctlr->lp;
1606         struct fcoe_port *port = lport_priv(lport);
1607         struct bnx2fc_hba *hba = interface->hba;
1608
1609         /* Stop the transmit retry timer */
1610         del_timer_sync(&port->timer);
1611
1612         /* Free existing transmit skbs */
1613         fcoe_clean_pending_queue(lport);
1614
1615         bnx2fc_net_cleanup(interface);
1616
1617         bnx2fc_free_vport(hba, lport);
1618 }
1619
1620 static void bnx2fc_if_destroy(struct fc_lport *lport)
1621 {
1622
1623         /* Free queued packets for the receive thread */
1624         bnx2fc_clean_rx_queue(lport);
1625
1626         /* Detach from scsi-ml */
1627         fc_remove_host(lport->host);
1628         scsi_remove_host(lport->host);
1629
1630         /*
1631          * Note that only the physical lport will have the exchange manager.
1632          * for vports, this function is NOP
1633          */
1634         fc_exch_mgr_free(lport);
1635
1636         /* Free memory used by statistical counters */
1637         fc_lport_free_stats(lport);
1638
1639         /* Release Scsi_Host */
1640         scsi_host_put(lport->host);
1641 }
1642
1643 static void __bnx2fc_destroy(struct bnx2fc_interface *interface)
1644 {
1645         struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface);
1646         struct fc_lport *lport = ctlr->lp;
1647         struct fcoe_port *port = lport_priv(lport);
1648
1649         bnx2fc_interface_cleanup(interface);
1650         bnx2fc_stop(interface);
1651         list_del(&interface->list);
1652         bnx2fc_port_destroy(port);
1653         bnx2fc_interface_put(interface);
1654 }
1655
1656 /**
1657  * bnx2fc_destroy - Destroy a bnx2fc FCoE interface
1658  *
1659  * @netdev: The net device that the FCoE interface is on
1660  *
1661  * Called from sysfs.
1662  *
1663  * Returns: 0 for success
1664  */
1665 static int bnx2fc_destroy(struct net_device *netdev)
1666 {
1667         struct bnx2fc_interface *interface = NULL;
1668         struct workqueue_struct *timer_work_queue;
1669         struct fcoe_ctlr *ctlr;
1670         int rc = 0;
1671
1672         rtnl_lock();
1673         mutex_lock(&bnx2fc_dev_lock);
1674
1675         interface = bnx2fc_interface_lookup(netdev);
1676         ctlr = bnx2fc_to_ctlr(interface);
1677         if (!interface || !ctlr->lp) {
1678                 rc = -ENODEV;
1679                 printk(KERN_ERR PFX "bnx2fc_destroy: interface or lport not found\n");
1680                 goto netdev_err;
1681         }
1682
1683         timer_work_queue = interface->timer_work_queue;
1684         __bnx2fc_destroy(interface);
1685         destroy_workqueue(timer_work_queue);
1686
1687 netdev_err:
1688         mutex_unlock(&bnx2fc_dev_lock);
1689         rtnl_unlock();
1690         return rc;
1691 }
1692
1693 static void bnx2fc_port_destroy(struct fcoe_port *port)
1694 {
1695         struct fc_lport *lport;
1696
1697         lport = port->lport;
1698         BNX2FC_HBA_DBG(lport, "Entered %s, destroying lport %p\n", __func__, lport);
1699
1700         bnx2fc_if_destroy(lport);
1701 }
1702
1703 static void bnx2fc_unbind_adapter_devices(struct bnx2fc_hba *hba)
1704 {
1705         bnx2fc_free_fw_resc(hba);
1706         bnx2fc_free_task_ctx(hba);
1707 }
1708
1709 /**
1710  * bnx2fc_bind_adapter_devices - binds bnx2fc adapter with the associated
1711  *                      pci structure
1712  *
1713  * @hba:                Adapter instance
1714  */
1715 static int bnx2fc_bind_adapter_devices(struct bnx2fc_hba *hba)
1716 {
1717         if (bnx2fc_setup_task_ctx(hba))
1718                 goto mem_err;
1719
1720         if (bnx2fc_setup_fw_resc(hba))
1721                 goto mem_err;
1722
1723         return 0;
1724 mem_err:
1725         bnx2fc_unbind_adapter_devices(hba);
1726         return -ENOMEM;
1727 }
1728
1729 static int bnx2fc_bind_pcidev(struct bnx2fc_hba *hba)
1730 {
1731         struct cnic_dev *cnic;
1732         struct pci_dev *pdev;
1733
1734         if (!hba->cnic) {
1735                 printk(KERN_ERR PFX "cnic is NULL\n");
1736                 return -ENODEV;
1737         }
1738         cnic = hba->cnic;
1739         pdev = hba->pcidev = cnic->pcidev;
1740         if (!hba->pcidev)
1741                 return -ENODEV;
1742
1743         switch (pdev->device) {
1744         case PCI_DEVICE_ID_NX2_57710:
1745                 strncpy(hba->chip_num, "BCM57710", BCM_CHIP_LEN);
1746                 break;
1747         case PCI_DEVICE_ID_NX2_57711:
1748                 strncpy(hba->chip_num, "BCM57711", BCM_CHIP_LEN);
1749                 break;
1750         case PCI_DEVICE_ID_NX2_57712:
1751         case PCI_DEVICE_ID_NX2_57712_MF:
1752         case PCI_DEVICE_ID_NX2_57712_VF:
1753                 strncpy(hba->chip_num, "BCM57712", BCM_CHIP_LEN);
1754                 break;
1755         case PCI_DEVICE_ID_NX2_57800:
1756         case PCI_DEVICE_ID_NX2_57800_MF:
1757         case PCI_DEVICE_ID_NX2_57800_VF:
1758                 strncpy(hba->chip_num, "BCM57800", BCM_CHIP_LEN);
1759                 break;
1760         case PCI_DEVICE_ID_NX2_57810:
1761         case PCI_DEVICE_ID_NX2_57810_MF:
1762         case PCI_DEVICE_ID_NX2_57810_VF:
1763                 strncpy(hba->chip_num, "BCM57810", BCM_CHIP_LEN);
1764                 break;
1765         case PCI_DEVICE_ID_NX2_57840:
1766         case PCI_DEVICE_ID_NX2_57840_MF:
1767         case PCI_DEVICE_ID_NX2_57840_VF:
1768         case PCI_DEVICE_ID_NX2_57840_2_20:
1769         case PCI_DEVICE_ID_NX2_57840_4_10:
1770                 strncpy(hba->chip_num, "BCM57840", BCM_CHIP_LEN);
1771                 break;
1772         default:
1773                 pr_err(PFX "Unknown device id 0x%x\n", pdev->device);
1774                 break;
1775         }
1776         pci_dev_get(hba->pcidev);
1777         return 0;
1778 }
1779
1780 static void bnx2fc_unbind_pcidev(struct bnx2fc_hba *hba)
1781 {
1782         if (hba->pcidev) {
1783                 hba->chip_num[0] = '\0';
1784                 pci_dev_put(hba->pcidev);
1785         }
1786         hba->pcidev = NULL;
1787 }
1788
1789 /**
1790  * bnx2fc_ulp_get_stats - cnic callback to populate FCoE stats
1791  *
1792  * @handle:    transport handle pointing to adapter struture
1793  */
1794 static int bnx2fc_ulp_get_stats(void *handle)
1795 {
1796         struct bnx2fc_hba *hba = handle;
1797         struct cnic_dev *cnic;
1798         struct fcoe_stats_info *stats_addr;
1799
1800         if (!hba)
1801                 return -EINVAL;
1802
1803         cnic = hba->cnic;
1804         stats_addr = &cnic->stats_addr->fcoe_stat;
1805         if (!stats_addr)
1806                 return -EINVAL;
1807
1808         strncpy(stats_addr->version, BNX2FC_VERSION,
1809                 sizeof(stats_addr->version));
1810         stats_addr->txq_size = BNX2FC_SQ_WQES_MAX;
1811         stats_addr->rxq_size = BNX2FC_CQ_WQES_MAX;
1812
1813         return 0;
1814 }
1815
1816
1817 /**
1818  * bnx2fc_ulp_start - cnic callback to initialize & start adapter instance
1819  *
1820  * @handle:     transport handle pointing to adapter structure
1821  *
1822  * This function maps adapter structure to pcidev structure and initiates
1823  *      firmware handshake to enable/initialize on-chip FCoE components.
1824  *      This bnx2fc - cnic interface api callback is used after following
1825  *      conditions are met -
1826  *      a) underlying network interface is up (marked by event NETDEV_UP
1827  *              from netdev
1828  *      b) bnx2fc adatper structure is registered.
1829  */
1830 static void bnx2fc_ulp_start(void *handle)
1831 {
1832         struct bnx2fc_hba *hba = handle;
1833         struct bnx2fc_interface *interface;
1834         struct fcoe_ctlr *ctlr;
1835         struct fc_lport *lport;
1836
1837         mutex_lock(&bnx2fc_dev_lock);
1838
1839         if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags))
1840                 bnx2fc_fw_init(hba);
1841
1842         BNX2FC_MISC_DBG("bnx2fc started.\n");
1843
1844         list_for_each_entry(interface, &if_list, list) {
1845                 if (interface->hba == hba) {
1846                         ctlr = bnx2fc_to_ctlr(interface);
1847                         lport = ctlr->lp;
1848                         /* Kick off Fabric discovery*/
1849                         printk(KERN_ERR PFX "ulp_init: start discovery\n");
1850                         lport->tt.frame_send = bnx2fc_xmit;
1851                         bnx2fc_start_disc(interface);
1852                 }
1853         }
1854
1855         mutex_unlock(&bnx2fc_dev_lock);
1856 }
1857
1858 static void bnx2fc_port_shutdown(struct fc_lport *lport)
1859 {
1860         BNX2FC_MISC_DBG("Entered %s\n", __func__);
1861         fc_fabric_logoff(lport);
1862         fc_lport_destroy(lport);
1863 }
1864
1865 static void bnx2fc_stop(struct bnx2fc_interface *interface)
1866 {
1867         struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface);
1868         struct fc_lport *lport;
1869         struct fc_lport *vport;
1870
1871         if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &interface->hba->flags))
1872                 return;
1873
1874         lport = ctlr->lp;
1875         bnx2fc_port_shutdown(lport);
1876
1877         mutex_lock(&lport->lp_mutex);
1878         list_for_each_entry(vport, &lport->vports, list)
1879                 fc_host_port_type(vport->host) =
1880                                         FC_PORTTYPE_UNKNOWN;
1881         mutex_unlock(&lport->lp_mutex);
1882         fc_host_port_type(lport->host) = FC_PORTTYPE_UNKNOWN;
1883         fcoe_ctlr_link_down(ctlr);
1884         fcoe_clean_pending_queue(lport);
1885 }
1886
1887 static int bnx2fc_fw_init(struct bnx2fc_hba *hba)
1888 {
1889 #define BNX2FC_INIT_POLL_TIME           (1000 / HZ)
1890         int rc = -1;
1891         int i = HZ;
1892
1893         rc = bnx2fc_bind_adapter_devices(hba);
1894         if (rc) {
1895                 printk(KERN_ALERT PFX
1896                         "bnx2fc_bind_adapter_devices failed - rc = %d\n", rc);
1897                 goto err_out;
1898         }
1899
1900         rc = bnx2fc_send_fw_fcoe_init_msg(hba);
1901         if (rc) {
1902                 printk(KERN_ALERT PFX
1903                         "bnx2fc_send_fw_fcoe_init_msg failed - rc = %d\n", rc);
1904                 goto err_unbind;
1905         }
1906
1907         /*
1908          * Wait until the adapter init message is complete, and adapter
1909          * state is UP.
1910          */
1911         while (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state) && i--)
1912                 msleep(BNX2FC_INIT_POLL_TIME);
1913
1914         if (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state)) {
1915                 printk(KERN_ERR PFX "bnx2fc_start: %s failed to initialize.  "
1916                                 "Ignoring...\n",
1917                                 hba->cnic->netdev->name);
1918                 rc = -1;
1919                 goto err_unbind;
1920         }
1921
1922
1923         set_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags);
1924         return 0;
1925
1926 err_unbind:
1927         bnx2fc_unbind_adapter_devices(hba);
1928 err_out:
1929         return rc;
1930 }
1931
1932 static void bnx2fc_fw_destroy(struct bnx2fc_hba *hba)
1933 {
1934         if (test_and_clear_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags)) {
1935                 if (bnx2fc_send_fw_fcoe_destroy_msg(hba) == 0) {
1936                         timer_setup(&hba->destroy_timer, bnx2fc_destroy_timer,
1937                                     0);
1938                         hba->destroy_timer.expires = BNX2FC_FW_TIMEOUT +
1939                                                                 jiffies;
1940                         add_timer(&hba->destroy_timer);
1941                         wait_event_interruptible(hba->destroy_wait,
1942                                         test_bit(BNX2FC_FLAG_DESTROY_CMPL,
1943                                                  &hba->flags));
1944                         clear_bit(BNX2FC_FLAG_DESTROY_CMPL, &hba->flags);
1945                         /* This should never happen */
1946                         if (signal_pending(current))
1947                                 flush_signals(current);
1948
1949                         del_timer_sync(&hba->destroy_timer);
1950                 }
1951                 bnx2fc_unbind_adapter_devices(hba);
1952         }
1953 }
1954
1955 /**
1956  * bnx2fc_ulp_stop - cnic callback to shutdown adapter instance
1957  *
1958  * @handle:     transport handle pointing to adapter structure
1959  *
1960  * Driver checks if adapter is already in shutdown mode, if not start
1961  *      the shutdown process.
1962  */
1963 static void bnx2fc_ulp_stop(void *handle)
1964 {
1965         struct bnx2fc_hba *hba = handle;
1966         struct bnx2fc_interface *interface;
1967
1968         printk(KERN_ERR "ULP_STOP\n");
1969
1970         mutex_lock(&bnx2fc_dev_lock);
1971         if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags))
1972                 goto exit;
1973         list_for_each_entry(interface, &if_list, list) {
1974                 if (interface->hba == hba)
1975                         bnx2fc_stop(interface);
1976         }
1977         BUG_ON(hba->num_ofld_sess != 0);
1978
1979         mutex_lock(&hba->hba_mutex);
1980         clear_bit(ADAPTER_STATE_UP, &hba->adapter_state);
1981         clear_bit(ADAPTER_STATE_GOING_DOWN,
1982                   &hba->adapter_state);
1983
1984         clear_bit(ADAPTER_STATE_READY, &hba->adapter_state);
1985         mutex_unlock(&hba->hba_mutex);
1986
1987         bnx2fc_fw_destroy(hba);
1988 exit:
1989         mutex_unlock(&bnx2fc_dev_lock);
1990 }
1991
1992 static void bnx2fc_start_disc(struct bnx2fc_interface *interface)
1993 {
1994         struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface);
1995         struct fc_lport *lport;
1996         int wait_cnt = 0;
1997
1998         BNX2FC_MISC_DBG("Entered %s\n", __func__);
1999         /* Kick off FIP/FLOGI */
2000         if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &interface->hba->flags)) {
2001                 printk(KERN_ERR PFX "Init not done yet\n");
2002                 return;
2003         }
2004
2005         lport = ctlr->lp;
2006         BNX2FC_HBA_DBG(lport, "calling fc_fabric_login\n");
2007
2008         if (!bnx2fc_link_ok(lport) && interface->enabled) {
2009                 BNX2FC_HBA_DBG(lport, "ctlr_link_up\n");
2010                 fcoe_ctlr_link_up(ctlr);
2011                 fc_host_port_type(lport->host) = FC_PORTTYPE_NPORT;
2012                 set_bit(ADAPTER_STATE_READY, &interface->hba->adapter_state);
2013         }
2014
2015         /* wait for the FCF to be selected before issuing FLOGI */
2016         while (!ctlr->sel_fcf) {
2017                 msleep(250);
2018                 /* give up after 3 secs */
2019                 if (++wait_cnt > 12)
2020                         break;
2021         }
2022
2023         /* Reset max receive frame size to default */
2024         if (fc_set_mfs(lport, BNX2FC_MFS))
2025                 return;
2026
2027         fc_lport_init(lport);
2028         fc_fabric_login(lport);
2029 }
2030
2031
2032 /**
2033  * bnx2fc_ulp_init - Initialize an adapter instance
2034  *
2035  * @dev :       cnic device handle
2036  * Called from cnic_register_driver() context to initialize all
2037  *      enumerated cnic devices. This routine allocates adapter structure
2038  *      and other device specific resources.
2039  */
2040 static void bnx2fc_ulp_init(struct cnic_dev *dev)
2041 {
2042         struct bnx2fc_hba *hba;
2043         int rc = 0;
2044
2045         BNX2FC_MISC_DBG("Entered %s\n", __func__);
2046         /* bnx2fc works only when bnx2x is loaded */
2047         if (!test_bit(CNIC_F_BNX2X_CLASS, &dev->flags) ||
2048             (dev->max_fcoe_conn == 0)) {
2049                 printk(KERN_ERR PFX "bnx2fc FCoE not supported on %s,"
2050                                     " flags: %lx fcoe_conn: %d\n",
2051                         dev->netdev->name, dev->flags, dev->max_fcoe_conn);
2052                 return;
2053         }
2054
2055         hba = bnx2fc_hba_create(dev);
2056         if (!hba) {
2057                 printk(KERN_ERR PFX "hba initialization failed\n");
2058                 return;
2059         }
2060
2061         pr_info(PFX "FCoE initialized for %s.\n", dev->netdev->name);
2062
2063         /* Add HBA to the adapter list */
2064         mutex_lock(&bnx2fc_dev_lock);
2065         list_add_tail(&hba->list, &adapter_list);
2066         adapter_count++;
2067         mutex_unlock(&bnx2fc_dev_lock);
2068
2069         dev->fcoe_cap = &hba->fcoe_cap;
2070         clear_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic);
2071         rc = dev->register_device(dev, CNIC_ULP_FCOE,
2072                                                 (void *) hba);
2073         if (rc)
2074                 printk(KERN_ERR PFX "register_device failed, rc = %d\n", rc);
2075         else
2076                 set_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic);
2077 }
2078
2079 /* Assumes rtnl_lock and the bnx2fc_dev_lock are already taken */
2080 static int __bnx2fc_disable(struct fcoe_ctlr *ctlr)
2081 {
2082         struct bnx2fc_interface *interface = fcoe_ctlr_priv(ctlr);
2083
2084         if (interface->enabled == true) {
2085                 if (!ctlr->lp) {
2086                         pr_err(PFX "__bnx2fc_disable: lport not found\n");
2087                         return -ENODEV;
2088                 } else {
2089                         interface->enabled = false;
2090                         fcoe_ctlr_link_down(ctlr);
2091                         fcoe_clean_pending_queue(ctlr->lp);
2092                 }
2093         }
2094         return 0;
2095 }
2096
2097 /*
2098  * Deperecated: Use bnx2fc_enabled()
2099  */
2100 static int bnx2fc_disable(struct net_device *netdev)
2101 {
2102         struct bnx2fc_interface *interface;
2103         struct fcoe_ctlr *ctlr;
2104         int rc = 0;
2105
2106         rtnl_lock();
2107         mutex_lock(&bnx2fc_dev_lock);
2108
2109         interface = bnx2fc_interface_lookup(netdev);
2110         ctlr = bnx2fc_to_ctlr(interface);
2111
2112         if (!interface) {
2113                 rc = -ENODEV;
2114                 pr_err(PFX "bnx2fc_disable: interface not found\n");
2115         } else {
2116                 rc = __bnx2fc_disable(ctlr);
2117         }
2118         mutex_unlock(&bnx2fc_dev_lock);
2119         rtnl_unlock();
2120         return rc;
2121 }
2122
2123 static uint bnx2fc_npiv_create_vports(struct fc_lport *lport,
2124                                       struct cnic_fc_npiv_tbl *npiv_tbl)
2125 {
2126         struct fc_vport_identifiers vpid;
2127         uint i, created = 0;
2128         u64 wwnn = 0;
2129         char wwpn_str[32];
2130         char wwnn_str[32];
2131
2132         if (npiv_tbl->count > MAX_NPIV_ENTRIES) {
2133                 BNX2FC_HBA_DBG(lport, "Exceeded count max of npiv table\n");
2134                 goto done;
2135         }
2136
2137         /* Sanity check the first entry to make sure it's not 0 */
2138         if (wwn_to_u64(npiv_tbl->wwnn[0]) == 0 &&
2139             wwn_to_u64(npiv_tbl->wwpn[0]) == 0) {
2140                 BNX2FC_HBA_DBG(lport, "First NPIV table entries invalid.\n");
2141                 goto done;
2142         }
2143
2144         vpid.roles = FC_PORT_ROLE_FCP_INITIATOR;
2145         vpid.vport_type = FC_PORTTYPE_NPIV;
2146         vpid.disable = false;
2147
2148         for (i = 0; i < npiv_tbl->count; i++) {
2149                 wwnn = wwn_to_u64(npiv_tbl->wwnn[i]);
2150                 if (wwnn == 0) {
2151                         /*
2152                          * If we get a 0 element from for the WWNN then assume
2153                          * the WWNN should be the same as the physical port.
2154                          */
2155                         wwnn = lport->wwnn;
2156                 }
2157                 vpid.node_name = wwnn;
2158                 vpid.port_name = wwn_to_u64(npiv_tbl->wwpn[i]);
2159                 scnprintf(vpid.symbolic_name, sizeof(vpid.symbolic_name),
2160                     "NPIV[%u]:%016llx-%016llx",
2161                     created, vpid.port_name, vpid.node_name);
2162                 fcoe_wwn_to_str(vpid.node_name, wwnn_str, sizeof(wwnn_str));
2163                 fcoe_wwn_to_str(vpid.port_name, wwpn_str, sizeof(wwpn_str));
2164                 BNX2FC_HBA_DBG(lport, "Creating vport %s:%s.\n", wwnn_str,
2165                     wwpn_str);
2166                 if (fc_vport_create(lport->host, 0, &vpid))
2167                         created++;
2168                 else
2169                         BNX2FC_HBA_DBG(lport, "Failed to create vport\n");
2170         }
2171 done:
2172         return created;
2173 }
2174
2175 static int __bnx2fc_enable(struct fcoe_ctlr *ctlr)
2176 {
2177         struct bnx2fc_interface *interface = fcoe_ctlr_priv(ctlr);
2178         struct bnx2fc_hba *hba;
2179         struct cnic_fc_npiv_tbl *npiv_tbl;
2180         struct fc_lport *lport;
2181
2182         if (interface->enabled == false) {
2183                 if (!ctlr->lp) {
2184                         pr_err(PFX "__bnx2fc_enable: lport not found\n");
2185                         return -ENODEV;
2186                 } else if (!bnx2fc_link_ok(ctlr->lp)) {
2187                         fcoe_ctlr_link_up(ctlr);
2188                         interface->enabled = true;
2189                 }
2190         }
2191
2192         /* Create static NPIV ports if any are contained in NVRAM */
2193         hba = interface->hba;
2194         lport = ctlr->lp;
2195
2196         if (!hba)
2197                 goto done;
2198
2199         if (!hba->cnic)
2200                 goto done;
2201
2202         if (!lport)
2203                 goto done;
2204
2205         if (!lport->host)
2206                 goto done;
2207
2208         if (!hba->cnic->get_fc_npiv_tbl)
2209                 goto done;
2210
2211         npiv_tbl = kzalloc(sizeof(struct cnic_fc_npiv_tbl), GFP_KERNEL);
2212         if (!npiv_tbl)
2213                 goto done;
2214
2215         if (hba->cnic->get_fc_npiv_tbl(hba->cnic, npiv_tbl))
2216                 goto done_free;
2217
2218         bnx2fc_npiv_create_vports(lport, npiv_tbl);
2219 done_free:
2220         kfree(npiv_tbl);
2221 done:
2222         return 0;
2223 }
2224
2225 /*
2226  * Deprecated: Use bnx2fc_enabled()
2227  */
2228 static int bnx2fc_enable(struct net_device *netdev)
2229 {
2230         struct bnx2fc_interface *interface;
2231         struct fcoe_ctlr *ctlr;
2232         int rc = 0;
2233
2234         rtnl_lock();
2235         mutex_lock(&bnx2fc_dev_lock);
2236
2237         interface = bnx2fc_interface_lookup(netdev);
2238         ctlr = bnx2fc_to_ctlr(interface);
2239         if (!interface) {
2240                 rc = -ENODEV;
2241                 pr_err(PFX "bnx2fc_enable: interface not found\n");
2242         } else {
2243                 rc = __bnx2fc_enable(ctlr);
2244         }
2245
2246         mutex_unlock(&bnx2fc_dev_lock);
2247         rtnl_unlock();
2248         return rc;
2249 }
2250
2251 /**
2252  * bnx2fc_ctlr_enabled() - Enable or disable an FCoE Controller
2253  * @cdev: The FCoE Controller that is being enabled or disabled
2254  *
2255  * fcoe_sysfs will ensure that the state of 'enabled' has
2256  * changed, so no checking is necessary here. This routine simply
2257  * calls fcoe_enable or fcoe_disable, both of which are deprecated.
2258  * When those routines are removed the functionality can be merged
2259  * here.
2260  */
2261 static int bnx2fc_ctlr_enabled(struct fcoe_ctlr_device *cdev)
2262 {
2263         struct fcoe_ctlr *ctlr = fcoe_ctlr_device_priv(cdev);
2264
2265         switch (cdev->enabled) {
2266         case FCOE_CTLR_ENABLED:
2267                 return __bnx2fc_enable(ctlr);
2268         case FCOE_CTLR_DISABLED:
2269                 return __bnx2fc_disable(ctlr);
2270         case FCOE_CTLR_UNUSED:
2271         default:
2272                 return -ENOTSUPP;
2273         };
2274 }
2275
2276 enum bnx2fc_create_link_state {
2277         BNX2FC_CREATE_LINK_DOWN,
2278         BNX2FC_CREATE_LINK_UP,
2279 };
2280
2281 /**
2282  * _bnx2fc_create() - Create bnx2fc FCoE interface
2283  * @netdev  :   The net_device object the Ethernet interface to create on
2284  * @fip_mode:   The FIP mode for this creation
2285  * @link_state: The ctlr link state on creation
2286  *
2287  * Called from either the libfcoe 'create' module parameter
2288  * via fcoe_create or from fcoe_syfs's ctlr_create file.
2289  *
2290  * libfcoe's 'create' module parameter is deprecated so some
2291  * consolidation of code can be done when that interface is
2292  * removed.
2293  *
2294  * Returns: 0 for success
2295  */
2296 static int _bnx2fc_create(struct net_device *netdev,
2297                           enum fip_mode fip_mode,
2298                           enum bnx2fc_create_link_state link_state)
2299 {
2300         struct fcoe_ctlr_device *cdev;
2301         struct fcoe_ctlr *ctlr;
2302         struct bnx2fc_interface *interface;
2303         struct bnx2fc_hba *hba;
2304         struct net_device *phys_dev = netdev;
2305         struct fc_lport *lport;
2306         struct ethtool_drvinfo drvinfo;
2307         int rc = 0;
2308         int vlan_id = 0;
2309
2310         BNX2FC_MISC_DBG("Entered bnx2fc_create\n");
2311         if (fip_mode != FIP_MODE_FABRIC) {
2312                 printk(KERN_ERR "fip mode not FABRIC\n");
2313                 return -EIO;
2314         }
2315
2316         rtnl_lock();
2317
2318         mutex_lock(&bnx2fc_dev_lock);
2319
2320         if (!try_module_get(THIS_MODULE)) {
2321                 rc = -EINVAL;
2322                 goto mod_err;
2323         }
2324
2325         /* obtain physical netdev */
2326         if (is_vlan_dev(netdev))
2327                 phys_dev = vlan_dev_real_dev(netdev);
2328
2329         /* verify if the physical device is a netxtreme2 device */
2330         if (phys_dev->ethtool_ops && phys_dev->ethtool_ops->get_drvinfo) {
2331                 memset(&drvinfo, 0, sizeof(drvinfo));
2332                 phys_dev->ethtool_ops->get_drvinfo(phys_dev, &drvinfo);
2333                 if (strncmp(drvinfo.driver, "bnx2x", strlen("bnx2x"))) {
2334                         printk(KERN_ERR PFX "Not a netxtreme2 device\n");
2335                         rc = -EINVAL;
2336                         goto netdev_err;
2337                 }
2338         } else {
2339                 printk(KERN_ERR PFX "unable to obtain drv_info\n");
2340                 rc = -EINVAL;
2341                 goto netdev_err;
2342         }
2343
2344         /* obtain interface and initialize rest of the structure */
2345         hba = bnx2fc_hba_lookup(phys_dev);
2346         if (!hba) {
2347                 rc = -ENODEV;
2348                 printk(KERN_ERR PFX "bnx2fc_create: hba not found\n");
2349                 goto netdev_err;
2350         }
2351
2352         if (bnx2fc_interface_lookup(netdev)) {
2353                 rc = -EEXIST;
2354                 goto netdev_err;
2355         }
2356
2357         interface = bnx2fc_interface_create(hba, netdev, fip_mode);
2358         if (!interface) {
2359                 printk(KERN_ERR PFX "bnx2fc_interface_create failed\n");
2360                 rc = -ENOMEM;
2361                 goto netdev_err;
2362         }
2363
2364         if (is_vlan_dev(netdev)) {
2365                 vlan_id = vlan_dev_vlan_id(netdev);
2366                 interface->vlan_enabled = 1;
2367         }
2368
2369         ctlr = bnx2fc_to_ctlr(interface);
2370         cdev = fcoe_ctlr_to_ctlr_dev(ctlr);
2371         interface->vlan_id = vlan_id;
2372         interface->tm_timeout = BNX2FC_TM_TIMEOUT;
2373
2374         interface->timer_work_queue =
2375                         create_singlethread_workqueue("bnx2fc_timer_wq");
2376         if (!interface->timer_work_queue) {
2377                 printk(KERN_ERR PFX "ulp_init could not create timer_wq\n");
2378                 rc = -EINVAL;
2379                 goto ifput_err;
2380         }
2381
2382         lport = bnx2fc_if_create(interface, &cdev->dev, 0);
2383         if (!lport) {
2384                 printk(KERN_ERR PFX "Failed to create interface (%s)\n",
2385                         netdev->name);
2386                 rc = -EINVAL;
2387                 goto if_create_err;
2388         }
2389
2390         /* Add interface to if_list */
2391         list_add_tail(&interface->list, &if_list);
2392
2393         lport->boot_time = jiffies;
2394
2395         /* Make this master N_port */
2396         ctlr->lp = lport;
2397
2398         if (link_state == BNX2FC_CREATE_LINK_UP)
2399                 cdev->enabled = FCOE_CTLR_ENABLED;
2400         else
2401                 cdev->enabled = FCOE_CTLR_DISABLED;
2402
2403         if (link_state == BNX2FC_CREATE_LINK_UP &&
2404             !bnx2fc_link_ok(lport)) {
2405                 fcoe_ctlr_link_up(ctlr);
2406                 fc_host_port_type(lport->host) = FC_PORTTYPE_NPORT;
2407                 set_bit(ADAPTER_STATE_READY, &interface->hba->adapter_state);
2408         }
2409
2410         BNX2FC_HBA_DBG(lport, "create: START DISC\n");
2411         bnx2fc_start_disc(interface);
2412
2413         if (link_state == BNX2FC_CREATE_LINK_UP)
2414                 interface->enabled = true;
2415
2416         /*
2417          * Release from kref_init in bnx2fc_interface_setup, on success
2418          * lport should be holding a reference taken in bnx2fc_if_create
2419          */
2420         bnx2fc_interface_put(interface);
2421         /* put netdev that was held while calling dev_get_by_name */
2422         mutex_unlock(&bnx2fc_dev_lock);
2423         rtnl_unlock();
2424         return 0;
2425
2426 if_create_err:
2427         destroy_workqueue(interface->timer_work_queue);
2428 ifput_err:
2429         bnx2fc_net_cleanup(interface);
2430         bnx2fc_interface_put(interface);
2431         goto mod_err;
2432 netdev_err:
2433         module_put(THIS_MODULE);
2434 mod_err:
2435         mutex_unlock(&bnx2fc_dev_lock);
2436         rtnl_unlock();
2437         return rc;
2438 }
2439
2440 /**
2441  * bnx2fc_create() - Create a bnx2fc interface
2442  * @netdev  : The net_device object the Ethernet interface to create on
2443  * @fip_mode: The FIP mode for this creation
2444  *
2445  * Called from fcoe transport
2446  *
2447  * Returns: 0 for success
2448  */
2449 static int bnx2fc_create(struct net_device *netdev, enum fip_mode fip_mode)
2450 {
2451         return _bnx2fc_create(netdev, fip_mode, BNX2FC_CREATE_LINK_UP);
2452 }
2453
2454 /**
2455  * bnx2fc_ctlr_alloc() - Allocate a bnx2fc interface from fcoe_sysfs
2456  * @netdev: The net_device to be used by the allocated FCoE Controller
2457  *
2458  * This routine is called from fcoe_sysfs. It will start the fcoe_ctlr
2459  * in a link_down state. The allows the user an opportunity to configure
2460  * the FCoE Controller from sysfs before enabling the FCoE Controller.
2461  *
2462  * Creating in with this routine starts the FCoE Controller in Fabric
2463  * mode. The user can change to VN2VN or another mode before enabling.
2464  */
2465 static int bnx2fc_ctlr_alloc(struct net_device *netdev)
2466 {
2467         return _bnx2fc_create(netdev, FIP_MODE_FABRIC,
2468                               BNX2FC_CREATE_LINK_DOWN);
2469 }
2470
2471 /**
2472  * bnx2fc_find_hba_for_cnic - maps cnic instance to bnx2fc hba instance
2473  *
2474  * @cnic:       Pointer to cnic device instance
2475  *
2476  **/
2477 static struct bnx2fc_hba *bnx2fc_find_hba_for_cnic(struct cnic_dev *cnic)
2478 {
2479         struct bnx2fc_hba *hba;
2480
2481         /* Called with bnx2fc_dev_lock held */
2482         list_for_each_entry(hba, &adapter_list, list) {
2483                 if (hba->cnic == cnic)
2484                         return hba;
2485         }
2486         return NULL;
2487 }
2488
2489 static struct bnx2fc_interface *bnx2fc_interface_lookup(struct net_device
2490                                                         *netdev)
2491 {
2492         struct bnx2fc_interface *interface;
2493
2494         /* Called with bnx2fc_dev_lock held */
2495         list_for_each_entry(interface, &if_list, list) {
2496                 if (interface->netdev == netdev)
2497                         return interface;
2498         }
2499         return NULL;
2500 }
2501
2502 static struct bnx2fc_hba *bnx2fc_hba_lookup(struct net_device
2503                                                       *phys_dev)
2504 {
2505         struct bnx2fc_hba *hba;
2506
2507         /* Called with bnx2fc_dev_lock held */
2508         list_for_each_entry(hba, &adapter_list, list) {
2509                 if (hba->phys_dev == phys_dev)
2510                         return hba;
2511         }
2512         printk(KERN_ERR PFX "adapter_lookup: hba NULL\n");
2513         return NULL;
2514 }
2515
2516 /**
2517  * bnx2fc_ulp_exit - shuts down adapter instance and frees all resources
2518  *
2519  * @dev:        cnic device handle
2520  */
2521 static void bnx2fc_ulp_exit(struct cnic_dev *dev)
2522 {
2523         struct bnx2fc_hba *hba;
2524         struct bnx2fc_interface *interface, *tmp;
2525
2526         BNX2FC_MISC_DBG("Entered bnx2fc_ulp_exit\n");
2527
2528         if (!test_bit(CNIC_F_BNX2X_CLASS, &dev->flags)) {
2529                 printk(KERN_ERR PFX "bnx2fc port check: %s, flags: %lx\n",
2530                         dev->netdev->name, dev->flags);
2531                 return;
2532         }
2533
2534         mutex_lock(&bnx2fc_dev_lock);
2535         hba = bnx2fc_find_hba_for_cnic(dev);
2536         if (!hba) {
2537                 printk(KERN_ERR PFX "bnx2fc_ulp_exit: hba not found, dev 0%p\n",
2538                        dev);
2539                 mutex_unlock(&bnx2fc_dev_lock);
2540                 return;
2541         }
2542
2543         list_del_init(&hba->list);
2544         adapter_count--;
2545
2546         list_for_each_entry_safe(interface, tmp, &if_list, list)
2547                 /* destroy not called yet, move to quiesced list */
2548                 if (interface->hba == hba)
2549                         __bnx2fc_destroy(interface);
2550         mutex_unlock(&bnx2fc_dev_lock);
2551
2552         bnx2fc_ulp_stop(hba);
2553         /* unregister cnic device */
2554         if (test_and_clear_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic))
2555                 hba->cnic->unregister_device(hba->cnic, CNIC_ULP_FCOE);
2556         bnx2fc_hba_destroy(hba);
2557 }
2558
2559 static void bnx2fc_rport_terminate_io(struct fc_rport *rport)
2560 {
2561         /* This is a no-op */
2562 }
2563
2564 /**
2565  * bnx2fc_fcoe_reset - Resets the fcoe
2566  *
2567  * @shost: shost the reset is from
2568  *
2569  * Returns: always 0
2570  */
2571 static int bnx2fc_fcoe_reset(struct Scsi_Host *shost)
2572 {
2573         struct fc_lport *lport = shost_priv(shost);
2574         fc_lport_reset(lport);
2575         return 0;
2576 }
2577
2578
2579 static bool bnx2fc_match(struct net_device *netdev)
2580 {
2581         struct net_device *phys_dev = netdev;
2582
2583         mutex_lock(&bnx2fc_dev_lock);
2584         if (is_vlan_dev(netdev))
2585                 phys_dev = vlan_dev_real_dev(netdev);
2586
2587         if (bnx2fc_hba_lookup(phys_dev)) {
2588                 mutex_unlock(&bnx2fc_dev_lock);
2589                 return true;
2590         }
2591
2592         mutex_unlock(&bnx2fc_dev_lock);
2593         return false;
2594 }
2595
2596
2597 static struct fcoe_transport bnx2fc_transport = {
2598         .name = {"bnx2fc"},
2599         .attached = false,
2600         .list = LIST_HEAD_INIT(bnx2fc_transport.list),
2601         .alloc = bnx2fc_ctlr_alloc,
2602         .match = bnx2fc_match,
2603         .create = bnx2fc_create,
2604         .destroy = bnx2fc_destroy,
2605         .enable = bnx2fc_enable,
2606         .disable = bnx2fc_disable,
2607 };
2608
2609 /**
2610  * bnx2fc_cpu_online - Create a receive thread for an  online CPU
2611  *
2612  * @cpu: cpu index for the online cpu
2613  */
2614 static int bnx2fc_cpu_online(unsigned int cpu)
2615 {
2616         struct bnx2fc_percpu_s *p;
2617         struct task_struct *thread;
2618
2619         p = &per_cpu(bnx2fc_percpu, cpu);
2620
2621         thread = kthread_create_on_node(bnx2fc_percpu_io_thread,
2622                                         (void *)p, cpu_to_node(cpu),
2623                                         "bnx2fc_thread/%d", cpu);
2624         if (IS_ERR(thread))
2625                 return PTR_ERR(thread);
2626
2627         /* bind thread to the cpu */
2628         kthread_bind(thread, cpu);
2629         p->iothread = thread;
2630         wake_up_process(thread);
2631         return 0;
2632 }
2633
2634 static int bnx2fc_cpu_offline(unsigned int cpu)
2635 {
2636         struct bnx2fc_percpu_s *p;
2637         struct task_struct *thread;
2638         struct bnx2fc_work *work, *tmp;
2639
2640         BNX2FC_MISC_DBG("destroying io thread for CPU %d\n", cpu);
2641
2642         /* Prevent any new work from being queued for this CPU */
2643         p = &per_cpu(bnx2fc_percpu, cpu);
2644         spin_lock_bh(&p->fp_work_lock);
2645         thread = p->iothread;
2646         p->iothread = NULL;
2647
2648         /* Free all work in the list */
2649         list_for_each_entry_safe(work, tmp, &p->work_list, list) {
2650                 list_del_init(&work->list);
2651                 bnx2fc_process_cq_compl(work->tgt, work->wqe, work->rq_data,
2652                                         work->num_rq, work->task);
2653                 kfree(work);
2654         }
2655
2656         spin_unlock_bh(&p->fp_work_lock);
2657
2658         if (thread)
2659                 kthread_stop(thread);
2660         return 0;
2661 }
2662
2663 static int bnx2fc_slave_configure(struct scsi_device *sdev)
2664 {
2665         if (!bnx2fc_queue_depth)
2666                 return 0;
2667
2668         scsi_change_queue_depth(sdev, bnx2fc_queue_depth);
2669         return 0;
2670 }
2671
2672 static enum cpuhp_state bnx2fc_online_state;
2673
2674 /**
2675  * bnx2fc_mod_init - module init entry point
2676  *
2677  * Initialize driver wide global data structures, and register
2678  * with cnic module
2679  **/
2680 static int __init bnx2fc_mod_init(void)
2681 {
2682         struct fcoe_percpu_s *bg;
2683         struct task_struct *l2_thread;
2684         int rc = 0;
2685         unsigned int cpu = 0;
2686         struct bnx2fc_percpu_s *p;
2687
2688         printk(KERN_INFO PFX "%s", version);
2689
2690         /* register as a fcoe transport */
2691         rc = fcoe_transport_attach(&bnx2fc_transport);
2692         if (rc) {
2693                 printk(KERN_ERR "failed to register an fcoe transport, check "
2694                         "if libfcoe is loaded\n");
2695                 goto out;
2696         }
2697
2698         INIT_LIST_HEAD(&adapter_list);
2699         INIT_LIST_HEAD(&if_list);
2700         mutex_init(&bnx2fc_dev_lock);
2701         adapter_count = 0;
2702
2703         /* Attach FC transport template */
2704         rc = bnx2fc_attach_transport();
2705         if (rc)
2706                 goto detach_ft;
2707
2708         bnx2fc_wq = alloc_workqueue("bnx2fc", 0, 0);
2709         if (!bnx2fc_wq) {
2710                 rc = -ENOMEM;
2711                 goto release_bt;
2712         }
2713
2714         bg = &bnx2fc_global;
2715         skb_queue_head_init(&bg->fcoe_rx_list);
2716         l2_thread = kthread_create(bnx2fc_l2_rcv_thread,
2717                                    (void *)bg,
2718                                    "bnx2fc_l2_thread");
2719         if (IS_ERR(l2_thread)) {
2720                 rc = PTR_ERR(l2_thread);
2721                 goto free_wq;
2722         }
2723         wake_up_process(l2_thread);
2724         spin_lock_bh(&bg->fcoe_rx_list.lock);
2725         bg->kthread = l2_thread;
2726         spin_unlock_bh(&bg->fcoe_rx_list.lock);
2727
2728         for_each_possible_cpu(cpu) {
2729                 p = &per_cpu(bnx2fc_percpu, cpu);
2730                 INIT_LIST_HEAD(&p->work_list);
2731                 spin_lock_init(&p->fp_work_lock);
2732         }
2733
2734         rc = cpuhp_setup_state(CPUHP_AP_ONLINE_DYN, "scsi/bnx2fc:online",
2735                                bnx2fc_cpu_online, bnx2fc_cpu_offline);
2736         if (rc < 0)
2737                 goto stop_thread;
2738         bnx2fc_online_state = rc;
2739
2740         cnic_register_driver(CNIC_ULP_FCOE, &bnx2fc_cnic_cb);
2741         return 0;
2742
2743 stop_thread:
2744         kthread_stop(l2_thread);
2745 free_wq:
2746         destroy_workqueue(bnx2fc_wq);
2747 release_bt:
2748         bnx2fc_release_transport();
2749 detach_ft:
2750         fcoe_transport_detach(&bnx2fc_transport);
2751 out:
2752         return rc;
2753 }
2754
2755 static void __exit bnx2fc_mod_exit(void)
2756 {
2757         LIST_HEAD(to_be_deleted);
2758         struct bnx2fc_hba *hba, *next;
2759         struct fcoe_percpu_s *bg;
2760         struct task_struct *l2_thread;
2761         struct sk_buff *skb;
2762
2763         /*
2764          * NOTE: Since cnic calls register_driver routine rtnl_lock,
2765          * it will have higher precedence than bnx2fc_dev_lock.
2766          * unregister_device() cannot be called with bnx2fc_dev_lock
2767          * held.
2768          */
2769         mutex_lock(&bnx2fc_dev_lock);
2770         list_splice_init(&adapter_list, &to_be_deleted);
2771         adapter_count = 0;
2772         mutex_unlock(&bnx2fc_dev_lock);
2773
2774         /* Unregister with cnic */
2775         list_for_each_entry_safe(hba, next, &to_be_deleted, list) {
2776                 list_del_init(&hba->list);
2777                 printk(KERN_ERR PFX "MOD_EXIT:destroy hba = 0x%p\n",
2778                        hba);
2779                 bnx2fc_ulp_stop(hba);
2780                 /* unregister cnic device */
2781                 if (test_and_clear_bit(BNX2FC_CNIC_REGISTERED,
2782                                        &hba->reg_with_cnic))
2783                         hba->cnic->unregister_device(hba->cnic,
2784                                                          CNIC_ULP_FCOE);
2785                 bnx2fc_hba_destroy(hba);
2786         }
2787         cnic_unregister_driver(CNIC_ULP_FCOE);
2788
2789         /* Destroy global thread */
2790         bg = &bnx2fc_global;
2791         spin_lock_bh(&bg->fcoe_rx_list.lock);
2792         l2_thread = bg->kthread;
2793         bg->kthread = NULL;
2794         while ((skb = __skb_dequeue(&bg->fcoe_rx_list)) != NULL)
2795                 kfree_skb(skb);
2796
2797         spin_unlock_bh(&bg->fcoe_rx_list.lock);
2798
2799         if (l2_thread)
2800                 kthread_stop(l2_thread);
2801
2802         cpuhp_remove_state(bnx2fc_online_state);
2803
2804         destroy_workqueue(bnx2fc_wq);
2805         /*
2806          * detach from scsi transport
2807          * must happen after all destroys are done
2808          */
2809         bnx2fc_release_transport();
2810
2811         /* detach from fcoe transport */
2812         fcoe_transport_detach(&bnx2fc_transport);
2813 }
2814
2815 module_init(bnx2fc_mod_init);
2816 module_exit(bnx2fc_mod_exit);
2817
2818 static struct fcoe_sysfs_function_template bnx2fc_fcoe_sysfs_templ = {
2819         .set_fcoe_ctlr_enabled = bnx2fc_ctlr_enabled,
2820         .get_fcoe_ctlr_link_fail = fcoe_ctlr_get_lesb,
2821         .get_fcoe_ctlr_vlink_fail = fcoe_ctlr_get_lesb,
2822         .get_fcoe_ctlr_miss_fka = fcoe_ctlr_get_lesb,
2823         .get_fcoe_ctlr_symb_err = fcoe_ctlr_get_lesb,
2824         .get_fcoe_ctlr_err_block = fcoe_ctlr_get_lesb,
2825         .get_fcoe_ctlr_fcs_error = fcoe_ctlr_get_lesb,
2826
2827         .get_fcoe_fcf_selected = fcoe_fcf_get_selected,
2828         .get_fcoe_fcf_vlan_id = bnx2fc_fcf_get_vlan_id,
2829 };
2830
2831 static struct fc_function_template bnx2fc_transport_function = {
2832         .show_host_node_name = 1,
2833         .show_host_port_name = 1,
2834         .show_host_supported_classes = 1,
2835         .show_host_supported_fc4s = 1,
2836         .show_host_active_fc4s = 1,
2837         .show_host_maxframe_size = 1,
2838
2839         .show_host_port_id = 1,
2840         .show_host_supported_speeds = 1,
2841         .get_host_speed = fc_get_host_speed,
2842         .show_host_speed = 1,
2843         .show_host_port_type = 1,
2844         .get_host_port_state = fc_get_host_port_state,
2845         .show_host_port_state = 1,
2846         .show_host_symbolic_name = 1,
2847
2848         .dd_fcrport_size = (sizeof(struct fc_rport_libfc_priv) +
2849                                 sizeof(struct bnx2fc_rport)),
2850         .show_rport_maxframe_size = 1,
2851         .show_rport_supported_classes = 1,
2852
2853         .show_host_fabric_name = 1,
2854         .show_starget_node_name = 1,
2855         .show_starget_port_name = 1,
2856         .show_starget_port_id = 1,
2857         .set_rport_dev_loss_tmo = fc_set_rport_loss_tmo,
2858         .show_rport_dev_loss_tmo = 1,
2859         .get_fc_host_stats = bnx2fc_get_host_stats,
2860
2861         .issue_fc_host_lip = bnx2fc_fcoe_reset,
2862
2863         .terminate_rport_io = bnx2fc_rport_terminate_io,
2864
2865         .vport_create = bnx2fc_vport_create,
2866         .vport_delete = bnx2fc_vport_destroy,
2867         .vport_disable = bnx2fc_vport_disable,
2868         .bsg_request = fc_lport_bsg_request,
2869 };
2870
2871 static struct fc_function_template bnx2fc_vport_xport_function = {
2872         .show_host_node_name = 1,
2873         .show_host_port_name = 1,
2874         .show_host_supported_classes = 1,
2875         .show_host_supported_fc4s = 1,
2876         .show_host_active_fc4s = 1,
2877         .show_host_maxframe_size = 1,
2878
2879         .show_host_port_id = 1,
2880         .show_host_supported_speeds = 1,
2881         .get_host_speed = fc_get_host_speed,
2882         .show_host_speed = 1,
2883         .show_host_port_type = 1,
2884         .get_host_port_state = fc_get_host_port_state,
2885         .show_host_port_state = 1,
2886         .show_host_symbolic_name = 1,
2887
2888         .dd_fcrport_size = (sizeof(struct fc_rport_libfc_priv) +
2889                                 sizeof(struct bnx2fc_rport)),
2890         .show_rport_maxframe_size = 1,
2891         .show_rport_supported_classes = 1,
2892
2893         .show_host_fabric_name = 1,
2894         .show_starget_node_name = 1,
2895         .show_starget_port_name = 1,
2896         .show_starget_port_id = 1,
2897         .set_rport_dev_loss_tmo = fc_set_rport_loss_tmo,
2898         .show_rport_dev_loss_tmo = 1,
2899         .get_fc_host_stats = fc_get_host_stats,
2900         .issue_fc_host_lip = bnx2fc_fcoe_reset,
2901         .terminate_rport_io = fc_rport_terminate_io,
2902         .bsg_request = fc_lport_bsg_request,
2903 };
2904
2905 /*
2906  * Additional scsi_host attributes.
2907  */
2908 static ssize_t
2909 bnx2fc_tm_timeout_show(struct device *dev, struct device_attribute *attr,
2910         char *buf)
2911 {
2912         struct Scsi_Host *shost = class_to_shost(dev);
2913         struct fc_lport *lport = shost_priv(shost);
2914         struct fcoe_port *port = lport_priv(lport);
2915         struct bnx2fc_interface *interface = port->priv;
2916
2917         sprintf(buf, "%u\n", interface->tm_timeout);
2918         return strlen(buf);
2919 }
2920
2921 static ssize_t
2922 bnx2fc_tm_timeout_store(struct device *dev,
2923         struct device_attribute *attr, const char *buf, size_t count)
2924 {
2925         struct Scsi_Host *shost = class_to_shost(dev);
2926         struct fc_lport *lport = shost_priv(shost);
2927         struct fcoe_port *port = lport_priv(lport);
2928         struct bnx2fc_interface *interface = port->priv;
2929         int rval, val;
2930
2931         rval = kstrtouint(buf, 10, &val);
2932         if (rval)
2933                 return rval;
2934         if (val > 255)
2935                 return -ERANGE;
2936
2937         interface->tm_timeout = (u8)val;
2938         return strlen(buf);
2939 }
2940
2941 static DEVICE_ATTR(tm_timeout, S_IRUGO|S_IWUSR, bnx2fc_tm_timeout_show,
2942         bnx2fc_tm_timeout_store);
2943
2944 static struct device_attribute *bnx2fc_host_attrs[] = {
2945         &dev_attr_tm_timeout,
2946         NULL,
2947 };
2948
2949 /*
2950  * scsi_host_template structure used while registering with SCSI-ml
2951  */
2952 static struct scsi_host_template bnx2fc_shost_template = {
2953         .module                 = THIS_MODULE,
2954         .name                   = "QLogic Offload FCoE Initiator",
2955         .queuecommand           = bnx2fc_queuecommand,
2956         .eh_timed_out           = fc_eh_timed_out,
2957         .eh_abort_handler       = bnx2fc_eh_abort,        /* abts */
2958         .eh_device_reset_handler = bnx2fc_eh_device_reset, /* lun reset */
2959         .eh_target_reset_handler = bnx2fc_eh_target_reset, /* tgt reset */
2960         .eh_host_reset_handler  = fc_eh_host_reset,
2961         .slave_alloc            = fc_slave_alloc,
2962         .change_queue_depth     = scsi_change_queue_depth,
2963         .this_id                = -1,
2964         .cmd_per_lun            = 3,
2965         .sg_tablesize           = BNX2FC_MAX_BDS_PER_CMD,
2966         .dma_boundary           = 0x7fff,
2967         .max_sectors            = 0x3fbf,
2968         .track_queue_depth      = 1,
2969         .slave_configure        = bnx2fc_slave_configure,
2970         .shost_attrs            = bnx2fc_host_attrs,
2971 };
2972
2973 static struct libfc_function_template bnx2fc_libfc_fcn_templ = {
2974         .frame_send             = bnx2fc_xmit,
2975         .elsct_send             = bnx2fc_elsct_send,
2976         .fcp_abort_io           = bnx2fc_abort_io,
2977         .fcp_cleanup            = bnx2fc_cleanup,
2978         .get_lesb               = fcoe_get_lesb,
2979         .rport_event_callback   = bnx2fc_rport_event_handler,
2980 };
2981
2982 /*
2983  * bnx2fc_cnic_cb - global template of bnx2fc - cnic driver interface
2984  *                      structure carrying callback function pointers
2985  */
2986 static struct cnic_ulp_ops bnx2fc_cnic_cb = {
2987         .owner                  = THIS_MODULE,
2988         .cnic_init              = bnx2fc_ulp_init,
2989         .cnic_exit              = bnx2fc_ulp_exit,
2990         .cnic_start             = bnx2fc_ulp_start,
2991         .cnic_stop              = bnx2fc_ulp_stop,
2992         .indicate_kcqes         = bnx2fc_indicate_kcqe,
2993         .indicate_netevent      = bnx2fc_indicate_netevent,
2994         .cnic_get_stats         = bnx2fc_ulp_get_stats,
2995 };