Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6
[linux-2.6.git] / drivers / scsi / bnx2fc / bnx2fc_fcoe.c
1 /* bnx2fc_fcoe.c: Broadcom NetXtreme II Linux FCoE offload driver.
2  * This file contains the code that interacts with libfc, libfcoe,
3  * cnic modules to create FCoE instances, send/receive non-offloaded
4  * FIP/FCoE packets, listen to link events etc.
5  *
6  * Copyright (c) 2008 - 2011 Broadcom Corporation
7  *
8  * This program is free software; you can redistribute it and/or modify
9  * it under the terms of the GNU General Public License as published by
10  * the Free Software Foundation.
11  *
12  * Written by: Bhanu Prakash Gollapudi (bprakash@broadcom.com)
13  */
14
15 #include "bnx2fc.h"
16
17 static struct list_head adapter_list;
18 static struct list_head if_list;
19 static u32 adapter_count;
20 static DEFINE_MUTEX(bnx2fc_dev_lock);
21 DEFINE_PER_CPU(struct bnx2fc_percpu_s, bnx2fc_percpu);
22
23 #define DRV_MODULE_NAME         "bnx2fc"
24 #define DRV_MODULE_VERSION      BNX2FC_VERSION
25 #define DRV_MODULE_RELDATE      "Oct 02, 2011"
26
27
28 static char version[] __devinitdata =
29                 "Broadcom NetXtreme II FCoE Driver " DRV_MODULE_NAME \
30                 " v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n";
31
32
33 MODULE_AUTHOR("Bhanu Prakash Gollapudi <bprakash@broadcom.com>");
34 MODULE_DESCRIPTION("Broadcom NetXtreme II BCM57710 FCoE Driver");
35 MODULE_LICENSE("GPL");
36 MODULE_VERSION(DRV_MODULE_VERSION);
37
38 #define BNX2FC_MAX_QUEUE_DEPTH  256
39 #define BNX2FC_MIN_QUEUE_DEPTH  32
40 #define FCOE_WORD_TO_BYTE  4
41
42 static struct scsi_transport_template   *bnx2fc_transport_template;
43 static struct scsi_transport_template   *bnx2fc_vport_xport_template;
44
45 struct workqueue_struct *bnx2fc_wq;
46
47 /* bnx2fc structure needs only one instance of the fcoe_percpu_s structure.
48  * Here the io threads are per cpu but the l2 thread is just one
49  */
50 struct fcoe_percpu_s bnx2fc_global;
51 DEFINE_SPINLOCK(bnx2fc_global_lock);
52
53 static struct cnic_ulp_ops bnx2fc_cnic_cb;
54 static struct libfc_function_template bnx2fc_libfc_fcn_templ;
55 static struct scsi_host_template bnx2fc_shost_template;
56 static struct fc_function_template bnx2fc_transport_function;
57 static struct fc_function_template bnx2fc_vport_xport_function;
58 static int bnx2fc_create(struct net_device *netdev, enum fip_state fip_mode);
59 static void __bnx2fc_destroy(struct bnx2fc_interface *interface);
60 static int bnx2fc_destroy(struct net_device *net_device);
61 static int bnx2fc_enable(struct net_device *netdev);
62 static int bnx2fc_disable(struct net_device *netdev);
63
64 static void bnx2fc_recv_frame(struct sk_buff *skb);
65
66 static void bnx2fc_start_disc(struct bnx2fc_interface *interface);
67 static int bnx2fc_shost_config(struct fc_lport *lport, struct device *dev);
68 static int bnx2fc_lport_config(struct fc_lport *lport);
69 static int bnx2fc_em_config(struct fc_lport *lport);
70 static int bnx2fc_bind_adapter_devices(struct bnx2fc_hba *hba);
71 static void bnx2fc_unbind_adapter_devices(struct bnx2fc_hba *hba);
72 static int bnx2fc_bind_pcidev(struct bnx2fc_hba *hba);
73 static void bnx2fc_unbind_pcidev(struct bnx2fc_hba *hba);
74 static struct fc_lport *bnx2fc_if_create(struct bnx2fc_interface *interface,
75                                   struct device *parent, int npiv);
76 static void bnx2fc_destroy_work(struct work_struct *work);
77
78 static struct bnx2fc_hba *bnx2fc_hba_lookup(struct net_device *phys_dev);
79 static struct bnx2fc_interface *bnx2fc_interface_lookup(struct net_device
80                                                         *phys_dev);
81 static inline void bnx2fc_interface_put(struct bnx2fc_interface *interface);
82 static struct bnx2fc_hba *bnx2fc_find_hba_for_cnic(struct cnic_dev *cnic);
83
84 static int bnx2fc_fw_init(struct bnx2fc_hba *hba);
85 static void bnx2fc_fw_destroy(struct bnx2fc_hba *hba);
86
87 static void bnx2fc_port_shutdown(struct fc_lport *lport);
88 static void bnx2fc_stop(struct bnx2fc_interface *interface);
89 static int __init bnx2fc_mod_init(void);
90 static void __exit bnx2fc_mod_exit(void);
91
92 unsigned int bnx2fc_debug_level;
93 module_param_named(debug_logging, bnx2fc_debug_level, int, S_IRUGO|S_IWUSR);
94
95 static int bnx2fc_cpu_callback(struct notifier_block *nfb,
96                              unsigned long action, void *hcpu);
97 /* notification function for CPU hotplug events */
98 static struct notifier_block bnx2fc_cpu_notifier = {
99         .notifier_call = bnx2fc_cpu_callback,
100 };
101
102 static inline struct net_device *bnx2fc_netdev(const struct fc_lport *lport)
103 {
104         return ((struct bnx2fc_interface *)
105                 ((struct fcoe_port *)lport_priv(lport))->priv)->netdev;
106 }
107
108 /**
109  * bnx2fc_get_lesb() - Fill the FCoE Link Error Status Block
110  * @lport: the local port
111  * @fc_lesb: the link error status block
112  */
113 static void bnx2fc_get_lesb(struct fc_lport *lport,
114                             struct fc_els_lesb *fc_lesb)
115 {
116         struct net_device *netdev = bnx2fc_netdev(lport);
117
118         __fcoe_get_lesb(lport, fc_lesb, netdev);
119 }
120
121 static void bnx2fc_clean_rx_queue(struct fc_lport *lp)
122 {
123         struct fcoe_percpu_s *bg;
124         struct fcoe_rcv_info *fr;
125         struct sk_buff_head *list;
126         struct sk_buff *skb, *next;
127         struct sk_buff *head;
128
129         bg = &bnx2fc_global;
130         spin_lock_bh(&bg->fcoe_rx_list.lock);
131         list = &bg->fcoe_rx_list;
132         head = list->next;
133         for (skb = head; skb != (struct sk_buff *)list;
134              skb = next) {
135                 next = skb->next;
136                 fr = fcoe_dev_from_skb(skb);
137                 if (fr->fr_dev == lp) {
138                         __skb_unlink(skb, list);
139                         kfree_skb(skb);
140                 }
141         }
142         spin_unlock_bh(&bg->fcoe_rx_list.lock);
143 }
144
145 int bnx2fc_get_paged_crc_eof(struct sk_buff *skb, int tlen)
146 {
147         int rc;
148         spin_lock(&bnx2fc_global_lock);
149         rc = fcoe_get_paged_crc_eof(skb, tlen, &bnx2fc_global);
150         spin_unlock(&bnx2fc_global_lock);
151
152         return rc;
153 }
154
155 static void bnx2fc_abort_io(struct fc_lport *lport)
156 {
157         /*
158          * This function is no-op for bnx2fc, but we do
159          * not want to leave it as NULL either, as libfc
160          * can call the default function which is
161          * fc_fcp_abort_io.
162          */
163 }
164
165 static void bnx2fc_cleanup(struct fc_lport *lport)
166 {
167         struct fcoe_port *port = lport_priv(lport);
168         struct bnx2fc_interface *interface = port->priv;
169         struct bnx2fc_hba *hba = interface->hba;
170         struct bnx2fc_rport *tgt;
171         int i;
172
173         BNX2FC_MISC_DBG("Entered %s\n", __func__);
174         mutex_lock(&hba->hba_mutex);
175         spin_lock_bh(&hba->hba_lock);
176         for (i = 0; i < BNX2FC_NUM_MAX_SESS; i++) {
177                 tgt = hba->tgt_ofld_list[i];
178                 if (tgt) {
179                         /* Cleanup IOs belonging to requested vport */
180                         if (tgt->port == port) {
181                                 spin_unlock_bh(&hba->hba_lock);
182                                 BNX2FC_TGT_DBG(tgt, "flush/cleanup\n");
183                                 bnx2fc_flush_active_ios(tgt);
184                                 spin_lock_bh(&hba->hba_lock);
185                         }
186                 }
187         }
188         spin_unlock_bh(&hba->hba_lock);
189         mutex_unlock(&hba->hba_mutex);
190 }
191
192 static int bnx2fc_xmit_l2_frame(struct bnx2fc_rport *tgt,
193                              struct fc_frame *fp)
194 {
195         struct fc_rport_priv *rdata = tgt->rdata;
196         struct fc_frame_header *fh;
197         int rc = 0;
198
199         fh = fc_frame_header_get(fp);
200         BNX2FC_TGT_DBG(tgt, "Xmit L2 frame rport = 0x%x, oxid = 0x%x, "
201                         "r_ctl = 0x%x\n", rdata->ids.port_id,
202                         ntohs(fh->fh_ox_id), fh->fh_r_ctl);
203         if ((fh->fh_type == FC_TYPE_ELS) &&
204             (fh->fh_r_ctl == FC_RCTL_ELS_REQ)) {
205
206                 switch (fc_frame_payload_op(fp)) {
207                 case ELS_ADISC:
208                         rc = bnx2fc_send_adisc(tgt, fp);
209                         break;
210                 case ELS_LOGO:
211                         rc = bnx2fc_send_logo(tgt, fp);
212                         break;
213                 case ELS_RLS:
214                         rc = bnx2fc_send_rls(tgt, fp);
215                         break;
216                 default:
217                         break;
218                 }
219         } else if ((fh->fh_type ==  FC_TYPE_BLS) &&
220             (fh->fh_r_ctl == FC_RCTL_BA_ABTS))
221                 BNX2FC_TGT_DBG(tgt, "ABTS frame\n");
222         else {
223                 BNX2FC_TGT_DBG(tgt, "Send L2 frame type 0x%x "
224                                 "rctl 0x%x thru non-offload path\n",
225                                 fh->fh_type, fh->fh_r_ctl);
226                 return -ENODEV;
227         }
228         if (rc)
229                 return -ENOMEM;
230         else
231                 return 0;
232 }
233
234 /**
235  * bnx2fc_xmit - bnx2fc's FCoE frame transmit function
236  *
237  * @lport:      the associated local port
238  * @fp: the fc_frame to be transmitted
239  */
240 static int bnx2fc_xmit(struct fc_lport *lport, struct fc_frame *fp)
241 {
242         struct ethhdr           *eh;
243         struct fcoe_crc_eof     *cp;
244         struct sk_buff          *skb;
245         struct fc_frame_header  *fh;
246         struct bnx2fc_interface *interface;
247         struct bnx2fc_hba *hba;
248         struct fcoe_port        *port;
249         struct fcoe_hdr         *hp;
250         struct bnx2fc_rport     *tgt;
251         struct fcoe_dev_stats   *stats;
252         u8                      sof, eof;
253         u32                     crc;
254         unsigned int            hlen, tlen, elen;
255         int                     wlen, rc = 0;
256
257         port = (struct fcoe_port *)lport_priv(lport);
258         interface = port->priv;
259         hba = interface->hba;
260
261         fh = fc_frame_header_get(fp);
262
263         skb = fp_skb(fp);
264         if (!lport->link_up) {
265                 BNX2FC_HBA_DBG(lport, "bnx2fc_xmit link down\n");
266                 kfree_skb(skb);
267                 return 0;
268         }
269
270         if (unlikely(fh->fh_r_ctl == FC_RCTL_ELS_REQ)) {
271                 if (!interface->ctlr.sel_fcf) {
272                         BNX2FC_HBA_DBG(lport, "FCF not selected yet!\n");
273                         kfree_skb(skb);
274                         return -EINVAL;
275                 }
276                 if (fcoe_ctlr_els_send(&interface->ctlr, lport, skb))
277                         return 0;
278         }
279
280         sof = fr_sof(fp);
281         eof = fr_eof(fp);
282
283         /*
284          * Snoop the frame header to check if the frame is for
285          * an offloaded session
286          */
287         /*
288          * tgt_ofld_list access is synchronized using
289          * both hba mutex and hba lock. Atleast hba mutex or
290          * hba lock needs to be held for read access.
291          */
292
293         spin_lock_bh(&hba->hba_lock);
294         tgt = bnx2fc_tgt_lookup(port, ntoh24(fh->fh_d_id));
295         if (tgt && (test_bit(BNX2FC_FLAG_SESSION_READY, &tgt->flags))) {
296                 /* This frame is for offloaded session */
297                 BNX2FC_HBA_DBG(lport, "xmit: Frame is for offloaded session "
298                                 "port_id = 0x%x\n", ntoh24(fh->fh_d_id));
299                 spin_unlock_bh(&hba->hba_lock);
300                 rc = bnx2fc_xmit_l2_frame(tgt, fp);
301                 if (rc != -ENODEV) {
302                         kfree_skb(skb);
303                         return rc;
304                 }
305         } else {
306                 spin_unlock_bh(&hba->hba_lock);
307         }
308
309         elen = sizeof(struct ethhdr);
310         hlen = sizeof(struct fcoe_hdr);
311         tlen = sizeof(struct fcoe_crc_eof);
312         wlen = (skb->len - tlen + sizeof(crc)) / FCOE_WORD_TO_BYTE;
313
314         skb->ip_summed = CHECKSUM_NONE;
315         crc = fcoe_fc_crc(fp);
316
317         /* copy port crc and eof to the skb buff */
318         if (skb_is_nonlinear(skb)) {
319                 skb_frag_t *frag;
320                 if (bnx2fc_get_paged_crc_eof(skb, tlen)) {
321                         kfree_skb(skb);
322                         return -ENOMEM;
323                 }
324                 frag = &skb_shinfo(skb)->frags[skb_shinfo(skb)->nr_frags - 1];
325                 cp = kmap_atomic(skb_frag_page(frag), KM_SKB_DATA_SOFTIRQ)
326                                 + frag->page_offset;
327         } else {
328                 cp = (struct fcoe_crc_eof *)skb_put(skb, tlen);
329         }
330
331         memset(cp, 0, sizeof(*cp));
332         cp->fcoe_eof = eof;
333         cp->fcoe_crc32 = cpu_to_le32(~crc);
334         if (skb_is_nonlinear(skb)) {
335                 kunmap_atomic(cp, KM_SKB_DATA_SOFTIRQ);
336                 cp = NULL;
337         }
338
339         /* adjust skb network/transport offsets to match mac/fcoe/port */
340         skb_push(skb, elen + hlen);
341         skb_reset_mac_header(skb);
342         skb_reset_network_header(skb);
343         skb->mac_len = elen;
344         skb->protocol = htons(ETH_P_FCOE);
345         skb->dev = interface->netdev;
346
347         /* fill up mac and fcoe headers */
348         eh = eth_hdr(skb);
349         eh->h_proto = htons(ETH_P_FCOE);
350         if (interface->ctlr.map_dest)
351                 fc_fcoe_set_mac(eh->h_dest, fh->fh_d_id);
352         else
353                 /* insert GW address */
354                 memcpy(eh->h_dest, interface->ctlr.dest_addr, ETH_ALEN);
355
356         if (unlikely(interface->ctlr.flogi_oxid != FC_XID_UNKNOWN))
357                 memcpy(eh->h_source, interface->ctlr.ctl_src_addr, ETH_ALEN);
358         else
359                 memcpy(eh->h_source, port->data_src_addr, ETH_ALEN);
360
361         hp = (struct fcoe_hdr *)(eh + 1);
362         memset(hp, 0, sizeof(*hp));
363         if (FC_FCOE_VER)
364                 FC_FCOE_ENCAPS_VER(hp, FC_FCOE_VER);
365         hp->fcoe_sof = sof;
366
367         /* fcoe lso, mss is in max_payload which is non-zero for FCP data */
368         if (lport->seq_offload && fr_max_payload(fp)) {
369                 skb_shinfo(skb)->gso_type = SKB_GSO_FCOE;
370                 skb_shinfo(skb)->gso_size = fr_max_payload(fp);
371         } else {
372                 skb_shinfo(skb)->gso_type = 0;
373                 skb_shinfo(skb)->gso_size = 0;
374         }
375
376         /*update tx stats */
377         stats = per_cpu_ptr(lport->dev_stats, get_cpu());
378         stats->TxFrames++;
379         stats->TxWords += wlen;
380         put_cpu();
381
382         /* send down to lld */
383         fr_dev(fp) = lport;
384         if (port->fcoe_pending_queue.qlen)
385                 fcoe_check_wait_queue(lport, skb);
386         else if (fcoe_start_io(skb))
387                 fcoe_check_wait_queue(lport, skb);
388
389         return 0;
390 }
391
392 /**
393  * bnx2fc_rcv - This is bnx2fc's receive function called by NET_RX_SOFTIRQ
394  *
395  * @skb:        the receive socket buffer
396  * @dev:        associated net device
397  * @ptype:      context
398  * @olddev:     last device
399  *
400  * This function receives the packet and builds FC frame and passes it up
401  */
402 static int bnx2fc_rcv(struct sk_buff *skb, struct net_device *dev,
403                 struct packet_type *ptype, struct net_device *olddev)
404 {
405         struct fc_lport *lport;
406         struct bnx2fc_interface *interface;
407         struct fc_frame_header *fh;
408         struct fcoe_rcv_info *fr;
409         struct fcoe_percpu_s *bg;
410         unsigned short oxid;
411
412         interface = container_of(ptype, struct bnx2fc_interface,
413                                  fcoe_packet_type);
414         lport = interface->ctlr.lp;
415
416         if (unlikely(lport == NULL)) {
417                 printk(KERN_ERR PFX "bnx2fc_rcv: lport is NULL\n");
418                 goto err;
419         }
420
421         if (unlikely(eth_hdr(skb)->h_proto != htons(ETH_P_FCOE))) {
422                 printk(KERN_ERR PFX "bnx2fc_rcv: Wrong FC type frame\n");
423                 goto err;
424         }
425
426         /*
427          * Check for minimum frame length, and make sure required FCoE
428          * and FC headers are pulled into the linear data area.
429          */
430         if (unlikely((skb->len < FCOE_MIN_FRAME) ||
431             !pskb_may_pull(skb, FCOE_HEADER_LEN)))
432                 goto err;
433
434         skb_set_transport_header(skb, sizeof(struct fcoe_hdr));
435         fh = (struct fc_frame_header *) skb_transport_header(skb);
436
437         oxid = ntohs(fh->fh_ox_id);
438
439         fr = fcoe_dev_from_skb(skb);
440         fr->fr_dev = lport;
441
442         bg = &bnx2fc_global;
443         spin_lock_bh(&bg->fcoe_rx_list.lock);
444
445         __skb_queue_tail(&bg->fcoe_rx_list, skb);
446         if (bg->fcoe_rx_list.qlen == 1)
447                 wake_up_process(bg->thread);
448
449         spin_unlock_bh(&bg->fcoe_rx_list.lock);
450
451         return 0;
452 err:
453         kfree_skb(skb);
454         return -1;
455 }
456
457 static int bnx2fc_l2_rcv_thread(void *arg)
458 {
459         struct fcoe_percpu_s *bg = arg;
460         struct sk_buff *skb;
461
462         set_user_nice(current, -20);
463         set_current_state(TASK_INTERRUPTIBLE);
464         while (!kthread_should_stop()) {
465                 schedule();
466                 spin_lock_bh(&bg->fcoe_rx_list.lock);
467                 while ((skb = __skb_dequeue(&bg->fcoe_rx_list)) != NULL) {
468                         spin_unlock_bh(&bg->fcoe_rx_list.lock);
469                         bnx2fc_recv_frame(skb);
470                         spin_lock_bh(&bg->fcoe_rx_list.lock);
471                 }
472                 __set_current_state(TASK_INTERRUPTIBLE);
473                 spin_unlock_bh(&bg->fcoe_rx_list.lock);
474         }
475         __set_current_state(TASK_RUNNING);
476         return 0;
477 }
478
479
480 static void bnx2fc_recv_frame(struct sk_buff *skb)
481 {
482         u32 fr_len;
483         struct fc_lport *lport;
484         struct fcoe_rcv_info *fr;
485         struct fcoe_dev_stats *stats;
486         struct fc_frame_header *fh;
487         struct fcoe_crc_eof crc_eof;
488         struct fc_frame *fp;
489         struct fc_lport *vn_port;
490         struct fcoe_port *port;
491         u8 *mac = NULL;
492         u8 *dest_mac = NULL;
493         struct fcoe_hdr *hp;
494
495         fr = fcoe_dev_from_skb(skb);
496         lport = fr->fr_dev;
497         if (unlikely(lport == NULL)) {
498                 printk(KERN_ERR PFX "Invalid lport struct\n");
499                 kfree_skb(skb);
500                 return;
501         }
502
503         if (skb_is_nonlinear(skb))
504                 skb_linearize(skb);
505         mac = eth_hdr(skb)->h_source;
506         dest_mac = eth_hdr(skb)->h_dest;
507
508         /* Pull the header */
509         hp = (struct fcoe_hdr *) skb_network_header(skb);
510         fh = (struct fc_frame_header *) skb_transport_header(skb);
511         skb_pull(skb, sizeof(struct fcoe_hdr));
512         fr_len = skb->len - sizeof(struct fcoe_crc_eof);
513
514         stats = per_cpu_ptr(lport->dev_stats, get_cpu());
515         stats->RxFrames++;
516         stats->RxWords += fr_len / FCOE_WORD_TO_BYTE;
517
518         fp = (struct fc_frame *)skb;
519         fc_frame_init(fp);
520         fr_dev(fp) = lport;
521         fr_sof(fp) = hp->fcoe_sof;
522         if (skb_copy_bits(skb, fr_len, &crc_eof, sizeof(crc_eof))) {
523                 put_cpu();
524                 kfree_skb(skb);
525                 return;
526         }
527         fr_eof(fp) = crc_eof.fcoe_eof;
528         fr_crc(fp) = crc_eof.fcoe_crc32;
529         if (pskb_trim(skb, fr_len)) {
530                 put_cpu();
531                 kfree_skb(skb);
532                 return;
533         }
534
535         fh = fc_frame_header_get(fp);
536
537         vn_port = fc_vport_id_lookup(lport, ntoh24(fh->fh_d_id));
538         if (vn_port) {
539                 port = lport_priv(vn_port);
540                 if (compare_ether_addr(port->data_src_addr, dest_mac)
541                     != 0) {
542                         BNX2FC_HBA_DBG(lport, "fpma mismatch\n");
543                         put_cpu();
544                         kfree_skb(skb);
545                         return;
546                 }
547         }
548         if (fh->fh_r_ctl == FC_RCTL_DD_SOL_DATA &&
549             fh->fh_type == FC_TYPE_FCP) {
550                 /* Drop FCP data. We dont this in L2 path */
551                 put_cpu();
552                 kfree_skb(skb);
553                 return;
554         }
555         if (fh->fh_r_ctl == FC_RCTL_ELS_REQ &&
556             fh->fh_type == FC_TYPE_ELS) {
557                 switch (fc_frame_payload_op(fp)) {
558                 case ELS_LOGO:
559                         if (ntoh24(fh->fh_s_id) == FC_FID_FLOGI) {
560                                 /* drop non-FIP LOGO */
561                                 put_cpu();
562                                 kfree_skb(skb);
563                                 return;
564                         }
565                         break;
566                 }
567         }
568
569         if (fh->fh_r_ctl == FC_RCTL_BA_ABTS) {
570                 /* Drop incoming ABTS */
571                 put_cpu();
572                 kfree_skb(skb);
573                 return;
574         }
575
576         if (le32_to_cpu(fr_crc(fp)) !=
577                         ~crc32(~0, skb->data, fr_len)) {
578                 if (stats->InvalidCRCCount < 5)
579                         printk(KERN_WARNING PFX "dropping frame with "
580                                "CRC error\n");
581                 stats->InvalidCRCCount++;
582                 put_cpu();
583                 kfree_skb(skb);
584                 return;
585         }
586         put_cpu();
587         fc_exch_recv(lport, fp);
588 }
589
590 /**
591  * bnx2fc_percpu_io_thread - thread per cpu for ios
592  *
593  * @arg:        ptr to bnx2fc_percpu_info structure
594  */
595 int bnx2fc_percpu_io_thread(void *arg)
596 {
597         struct bnx2fc_percpu_s *p = arg;
598         struct bnx2fc_work *work, *tmp;
599         LIST_HEAD(work_list);
600
601         set_user_nice(current, -20);
602         set_current_state(TASK_INTERRUPTIBLE);
603         while (!kthread_should_stop()) {
604                 schedule();
605                 spin_lock_bh(&p->fp_work_lock);
606                 while (!list_empty(&p->work_list)) {
607                         list_splice_init(&p->work_list, &work_list);
608                         spin_unlock_bh(&p->fp_work_lock);
609
610                         list_for_each_entry_safe(work, tmp, &work_list, list) {
611                                 list_del_init(&work->list);
612                                 bnx2fc_process_cq_compl(work->tgt, work->wqe);
613                                 kfree(work);
614                         }
615
616                         spin_lock_bh(&p->fp_work_lock);
617                 }
618                 __set_current_state(TASK_INTERRUPTIBLE);
619                 spin_unlock_bh(&p->fp_work_lock);
620         }
621         __set_current_state(TASK_RUNNING);
622
623         return 0;
624 }
625
626 static struct fc_host_statistics *bnx2fc_get_host_stats(struct Scsi_Host *shost)
627 {
628         struct fc_host_statistics *bnx2fc_stats;
629         struct fc_lport *lport = shost_priv(shost);
630         struct fcoe_port *port = lport_priv(lport);
631         struct bnx2fc_interface *interface = port->priv;
632         struct bnx2fc_hba *hba = interface->hba;
633         struct fcoe_statistics_params *fw_stats;
634         int rc = 0;
635
636         fw_stats = (struct fcoe_statistics_params *)hba->stats_buffer;
637         if (!fw_stats)
638                 return NULL;
639
640         bnx2fc_stats = fc_get_host_stats(shost);
641
642         init_completion(&hba->stat_req_done);
643         if (bnx2fc_send_stat_req(hba))
644                 return bnx2fc_stats;
645         rc = wait_for_completion_timeout(&hba->stat_req_done, (2 * HZ));
646         if (!rc) {
647                 BNX2FC_HBA_DBG(lport, "FW stat req timed out\n");
648                 return bnx2fc_stats;
649         }
650         bnx2fc_stats->invalid_crc_count += fw_stats->rx_stat2.fc_crc_cnt;
651         bnx2fc_stats->tx_frames += fw_stats->tx_stat.fcoe_tx_pkt_cnt;
652         bnx2fc_stats->tx_words += (fw_stats->tx_stat.fcoe_tx_byte_cnt) / 4;
653         bnx2fc_stats->rx_frames += fw_stats->rx_stat0.fcoe_rx_pkt_cnt;
654         bnx2fc_stats->rx_words += (fw_stats->rx_stat0.fcoe_rx_byte_cnt) / 4;
655
656         bnx2fc_stats->dumped_frames = 0;
657         bnx2fc_stats->lip_count = 0;
658         bnx2fc_stats->nos_count = 0;
659         bnx2fc_stats->loss_of_sync_count = 0;
660         bnx2fc_stats->loss_of_signal_count = 0;
661         bnx2fc_stats->prim_seq_protocol_err_count = 0;
662
663         return bnx2fc_stats;
664 }
665
666 static int bnx2fc_shost_config(struct fc_lport *lport, struct device *dev)
667 {
668         struct fcoe_port *port = lport_priv(lport);
669         struct bnx2fc_interface *interface = port->priv;
670         struct Scsi_Host *shost = lport->host;
671         int rc = 0;
672
673         shost->max_cmd_len = BNX2FC_MAX_CMD_LEN;
674         shost->max_lun = BNX2FC_MAX_LUN;
675         shost->max_id = BNX2FC_MAX_FCP_TGT;
676         shost->max_channel = 0;
677         if (lport->vport)
678                 shost->transportt = bnx2fc_vport_xport_template;
679         else
680                 shost->transportt = bnx2fc_transport_template;
681
682         /* Add the new host to SCSI-ml */
683         rc = scsi_add_host(lport->host, dev);
684         if (rc) {
685                 printk(KERN_ERR PFX "Error on scsi_add_host\n");
686                 return rc;
687         }
688         if (!lport->vport)
689                 fc_host_max_npiv_vports(lport->host) = USHRT_MAX;
690         sprintf(fc_host_symbolic_name(lport->host), "%s v%s over %s",
691                 BNX2FC_NAME, BNX2FC_VERSION,
692                 interface->netdev->name);
693
694         return 0;
695 }
696
697 static void bnx2fc_link_speed_update(struct fc_lport *lport)
698 {
699         struct fcoe_port *port = lport_priv(lport);
700         struct bnx2fc_interface *interface = port->priv;
701         struct net_device *netdev = interface->netdev;
702         struct ethtool_cmd ecmd;
703
704         if (!__ethtool_get_settings(netdev, &ecmd)) {
705                 lport->link_supported_speeds &=
706                         ~(FC_PORTSPEED_1GBIT | FC_PORTSPEED_10GBIT);
707                 if (ecmd.supported & (SUPPORTED_1000baseT_Half |
708                                       SUPPORTED_1000baseT_Full))
709                         lport->link_supported_speeds |= FC_PORTSPEED_1GBIT;
710                 if (ecmd.supported & SUPPORTED_10000baseT_Full)
711                         lport->link_supported_speeds |= FC_PORTSPEED_10GBIT;
712
713                 switch (ethtool_cmd_speed(&ecmd)) {
714                 case SPEED_1000:
715                         lport->link_speed = FC_PORTSPEED_1GBIT;
716                         break;
717                 case SPEED_2500:
718                         lport->link_speed = FC_PORTSPEED_2GBIT;
719                         break;
720                 case SPEED_10000:
721                         lport->link_speed = FC_PORTSPEED_10GBIT;
722                         break;
723                 }
724         }
725 }
726 static int bnx2fc_link_ok(struct fc_lport *lport)
727 {
728         struct fcoe_port *port = lport_priv(lport);
729         struct bnx2fc_interface *interface = port->priv;
730         struct bnx2fc_hba *hba = interface->hba;
731         struct net_device *dev = hba->phys_dev;
732         int rc = 0;
733
734         if ((dev->flags & IFF_UP) && netif_carrier_ok(dev))
735                 clear_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
736         else {
737                 set_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
738                 rc = -1;
739         }
740         return rc;
741 }
742
743 /**
744  * bnx2fc_get_link_state - get network link state
745  *
746  * @hba:        adapter instance pointer
747  *
748  * updates adapter structure flag based on netdev state
749  */
750 void bnx2fc_get_link_state(struct bnx2fc_hba *hba)
751 {
752         if (test_bit(__LINK_STATE_NOCARRIER, &hba->phys_dev->state))
753                 set_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
754         else
755                 clear_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
756 }
757
758 static int bnx2fc_net_config(struct fc_lport *lport, struct net_device *netdev)
759 {
760         struct bnx2fc_hba *hba;
761         struct bnx2fc_interface *interface;
762         struct fcoe_port *port;
763         u64 wwnn, wwpn;
764
765         port = lport_priv(lport);
766         interface = port->priv;
767         hba = interface->hba;
768
769         /* require support for get_pauseparam ethtool op. */
770         if (!hba->phys_dev->ethtool_ops ||
771             !hba->phys_dev->ethtool_ops->get_pauseparam)
772                 return -EOPNOTSUPP;
773
774         if (fc_set_mfs(lport, BNX2FC_MFS))
775                 return -EINVAL;
776
777         skb_queue_head_init(&port->fcoe_pending_queue);
778         port->fcoe_pending_queue_active = 0;
779         setup_timer(&port->timer, fcoe_queue_timer, (unsigned long) lport);
780
781         bnx2fc_link_speed_update(lport);
782
783         if (!lport->vport) {
784                 if (fcoe_get_wwn(netdev, &wwnn, NETDEV_FCOE_WWNN))
785                         wwnn = fcoe_wwn_from_mac(interface->ctlr.ctl_src_addr,
786                                                  1, 0);
787                 BNX2FC_HBA_DBG(lport, "WWNN = 0x%llx\n", wwnn);
788                 fc_set_wwnn(lport, wwnn);
789
790                 if (fcoe_get_wwn(netdev, &wwpn, NETDEV_FCOE_WWPN))
791                         wwpn = fcoe_wwn_from_mac(interface->ctlr.ctl_src_addr,
792                                                  2, 0);
793
794                 BNX2FC_HBA_DBG(lport, "WWPN = 0x%llx\n", wwpn);
795                 fc_set_wwpn(lport, wwpn);
796         }
797
798         return 0;
799 }
800
801 static void bnx2fc_destroy_timer(unsigned long data)
802 {
803         struct bnx2fc_hba *hba = (struct bnx2fc_hba *)data;
804
805         printk(KERN_ERR PFX "ERROR:bnx2fc_destroy_timer - "
806                "Destroy compl not received!!\n");
807         set_bit(BNX2FC_FLAG_DESTROY_CMPL, &hba->flags);
808         wake_up_interruptible(&hba->destroy_wait);
809 }
810
811 /**
812  * bnx2fc_indicate_netevent - Generic netdev event handler
813  *
814  * @context:    adapter structure pointer
815  * @event:      event type
816  * @vlan_id:    vlan id - associated vlan id with this event
817  *
818  * Handles NETDEV_UP, NETDEV_DOWN, NETDEV_GOING_DOWN,NETDEV_CHANGE and
819  * NETDEV_CHANGE_MTU events. Handle NETDEV_UNREGISTER only for vlans.
820  */
821 static void bnx2fc_indicate_netevent(void *context, unsigned long event,
822                                      u16 vlan_id)
823 {
824         struct bnx2fc_hba *hba = (struct bnx2fc_hba *)context;
825         struct fc_lport *lport;
826         struct fc_lport *vport;
827         struct bnx2fc_interface *interface, *tmp;
828         int wait_for_upload = 0;
829         u32 link_possible = 1;
830
831         if (vlan_id != 0 && event != NETDEV_UNREGISTER)
832                 return;
833
834         switch (event) {
835         case NETDEV_UP:
836                 if (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state))
837                         printk(KERN_ERR "indicate_netevent: "\
838                                         "hba is not UP!!\n");
839                 break;
840
841         case NETDEV_DOWN:
842                 clear_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state);
843                 clear_bit(ADAPTER_STATE_UP, &hba->adapter_state);
844                 link_possible = 0;
845                 break;
846
847         case NETDEV_GOING_DOWN:
848                 set_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state);
849                 link_possible = 0;
850                 break;
851
852         case NETDEV_CHANGE:
853                 break;
854
855         case NETDEV_UNREGISTER:
856                 if (!vlan_id)
857                         return;
858                 mutex_lock(&bnx2fc_dev_lock);
859                 list_for_each_entry_safe(interface, tmp, &if_list, list) {
860                         if (interface->hba == hba &&
861                             interface->vlan_id == (vlan_id & VLAN_VID_MASK))
862                                 __bnx2fc_destroy(interface);
863                 }
864                 mutex_unlock(&bnx2fc_dev_lock);
865                 return;
866
867         default:
868                 printk(KERN_ERR PFX "Unkonwn netevent %ld", event);
869                 return;
870         }
871
872         mutex_lock(&bnx2fc_dev_lock);
873         list_for_each_entry(interface, &if_list, list) {
874
875                 if (interface->hba != hba)
876                         continue;
877
878                 lport = interface->ctlr.lp;
879                 BNX2FC_HBA_DBG(lport, "netevent handler - event=%s %ld\n",
880                                 interface->netdev->name, event);
881
882                 bnx2fc_link_speed_update(lport);
883
884                 if (link_possible && !bnx2fc_link_ok(lport)) {
885                         /* Reset max recv frame size to default */
886                         fc_set_mfs(lport, BNX2FC_MFS);
887                         /*
888                          * ctlr link up will only be handled during
889                          * enable to avoid sending discovery solicitation
890                          * on a stale vlan
891                          */
892                         if (interface->enabled)
893                                 fcoe_ctlr_link_up(&interface->ctlr);
894                 } else if (fcoe_ctlr_link_down(&interface->ctlr)) {
895                         mutex_lock(&lport->lp_mutex);
896                         list_for_each_entry(vport, &lport->vports, list)
897                                 fc_host_port_type(vport->host) =
898                                                         FC_PORTTYPE_UNKNOWN;
899                         mutex_unlock(&lport->lp_mutex);
900                         fc_host_port_type(lport->host) = FC_PORTTYPE_UNKNOWN;
901                         per_cpu_ptr(lport->dev_stats,
902                                     get_cpu())->LinkFailureCount++;
903                         put_cpu();
904                         fcoe_clean_pending_queue(lport);
905                         wait_for_upload = 1;
906                 }
907         }
908         mutex_unlock(&bnx2fc_dev_lock);
909
910         if (wait_for_upload) {
911                 clear_bit(ADAPTER_STATE_READY, &hba->adapter_state);
912                 init_waitqueue_head(&hba->shutdown_wait);
913                 BNX2FC_MISC_DBG("indicate_netevent "
914                                 "num_ofld_sess = %d\n",
915                                 hba->num_ofld_sess);
916                 hba->wait_for_link_down = 1;
917                 wait_event_interruptible(hba->shutdown_wait,
918                                          (hba->num_ofld_sess == 0));
919                 BNX2FC_MISC_DBG("wakeup - num_ofld_sess = %d\n",
920                                 hba->num_ofld_sess);
921                 hba->wait_for_link_down = 0;
922
923                 if (signal_pending(current))
924                         flush_signals(current);
925         }
926 }
927
928 static int bnx2fc_libfc_config(struct fc_lport *lport)
929 {
930
931         /* Set the function pointers set by bnx2fc driver */
932         memcpy(&lport->tt, &bnx2fc_libfc_fcn_templ,
933                 sizeof(struct libfc_function_template));
934         fc_elsct_init(lport);
935         fc_exch_init(lport);
936         fc_rport_init(lport);
937         fc_disc_init(lport);
938         return 0;
939 }
940
941 static int bnx2fc_em_config(struct fc_lport *lport)
942 {
943         if (!fc_exch_mgr_alloc(lport, FC_CLASS_3, FCOE_MIN_XID,
944                                 FCOE_MAX_XID, NULL)) {
945                 printk(KERN_ERR PFX "em_config:fc_exch_mgr_alloc failed\n");
946                 return -ENOMEM;
947         }
948
949         return 0;
950 }
951
952 static int bnx2fc_lport_config(struct fc_lport *lport)
953 {
954         lport->link_up = 0;
955         lport->qfull = 0;
956         lport->max_retry_count = 3;
957         lport->max_rport_retry_count = 3;
958         lport->e_d_tov = 2 * 1000;
959         lport->r_a_tov = 10 * 1000;
960
961         lport->service_params = (FCP_SPPF_INIT_FCN | FCP_SPPF_RD_XRDY_DIS |
962                                 FCP_SPPF_RETRY | FCP_SPPF_CONF_COMPL);
963         lport->does_npiv = 1;
964
965         memset(&lport->rnid_gen, 0, sizeof(struct fc_els_rnid_gen));
966         lport->rnid_gen.rnid_atype = BNX2FC_RNID_HBA;
967
968         /* alloc stats structure */
969         if (fc_lport_init_stats(lport))
970                 return -ENOMEM;
971
972         /* Finish fc_lport configuration */
973         fc_lport_config(lport);
974
975         return 0;
976 }
977
978 /**
979  * bnx2fc_fip_recv - handle a received FIP frame.
980  *
981  * @skb: the received skb
982  * @dev: associated &net_device
983  * @ptype: the &packet_type structure which was used to register this handler.
984  * @orig_dev: original receive &net_device, in case @ dev is a bond.
985  *
986  * Returns: 0 for success
987  */
988 static int bnx2fc_fip_recv(struct sk_buff *skb, struct net_device *dev,
989                            struct packet_type *ptype,
990                            struct net_device *orig_dev)
991 {
992         struct bnx2fc_interface *interface;
993         interface = container_of(ptype, struct bnx2fc_interface,
994                                  fip_packet_type);
995         fcoe_ctlr_recv(&interface->ctlr, skb);
996         return 0;
997 }
998
999 /**
1000  * bnx2fc_update_src_mac - Update Ethernet MAC filters.
1001  *
1002  * @fip: FCoE controller.
1003  * @old: Unicast MAC address to delete if the MAC is non-zero.
1004  * @new: Unicast MAC address to add.
1005  *
1006  * Remove any previously-set unicast MAC filter.
1007  * Add secondary FCoE MAC address filter for our OUI.
1008  */
1009 static void bnx2fc_update_src_mac(struct fc_lport *lport, u8 *addr)
1010 {
1011         struct fcoe_port *port = lport_priv(lport);
1012
1013         memcpy(port->data_src_addr, addr, ETH_ALEN);
1014 }
1015
1016 /**
1017  * bnx2fc_get_src_mac - return the ethernet source address for an lport
1018  *
1019  * @lport: libfc port
1020  */
1021 static u8 *bnx2fc_get_src_mac(struct fc_lport *lport)
1022 {
1023         struct fcoe_port *port;
1024
1025         port = (struct fcoe_port *)lport_priv(lport);
1026         return port->data_src_addr;
1027 }
1028
1029 /**
1030  * bnx2fc_fip_send - send an Ethernet-encapsulated FIP frame.
1031  *
1032  * @fip: FCoE controller.
1033  * @skb: FIP Packet.
1034  */
1035 static void bnx2fc_fip_send(struct fcoe_ctlr *fip, struct sk_buff *skb)
1036 {
1037         skb->dev = bnx2fc_from_ctlr(fip)->netdev;
1038         dev_queue_xmit(skb);
1039 }
1040
1041 static int bnx2fc_vport_create(struct fc_vport *vport, bool disabled)
1042 {
1043         struct Scsi_Host *shost = vport_to_shost(vport);
1044         struct fc_lport *n_port = shost_priv(shost);
1045         struct fcoe_port *port = lport_priv(n_port);
1046         struct bnx2fc_interface *interface = port->priv;
1047         struct net_device *netdev = interface->netdev;
1048         struct fc_lport *vn_port;
1049         int rc;
1050         char buf[32];
1051
1052         rc = fcoe_validate_vport_create(vport);
1053         if (rc) {
1054                 fcoe_wwn_to_str(vport->port_name, buf, sizeof(buf));
1055                 printk(KERN_ERR PFX "Failed to create vport, "
1056                        "WWPN (0x%s) already exists\n",
1057                        buf);
1058                 return rc;
1059         }
1060
1061         if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &interface->hba->flags)) {
1062                 printk(KERN_ERR PFX "vn ports cannot be created on"
1063                         "this interface\n");
1064                 return -EIO;
1065         }
1066         rtnl_lock();
1067         mutex_lock(&bnx2fc_dev_lock);
1068         vn_port = bnx2fc_if_create(interface, &vport->dev, 1);
1069         mutex_unlock(&bnx2fc_dev_lock);
1070         rtnl_unlock();
1071
1072         if (IS_ERR(vn_port)) {
1073                 printk(KERN_ERR PFX "bnx2fc_vport_create (%s) failed\n",
1074                         netdev->name);
1075                 return -EIO;
1076         }
1077
1078         if (disabled) {
1079                 fc_vport_set_state(vport, FC_VPORT_DISABLED);
1080         } else {
1081                 vn_port->boot_time = jiffies;
1082                 fc_lport_init(vn_port);
1083                 fc_fabric_login(vn_port);
1084                 fc_vport_setlink(vn_port);
1085         }
1086         return 0;
1087 }
1088
1089 static void bnx2fc_free_vport(struct bnx2fc_hba *hba, struct fc_lport *lport)
1090 {
1091         struct bnx2fc_lport *blport, *tmp;
1092
1093         spin_lock_bh(&hba->hba_lock);
1094         list_for_each_entry_safe(blport, tmp, &hba->vports, list) {
1095                 if (blport->lport == lport) {
1096                         list_del(&blport->list);
1097                         kfree(blport);
1098                 }
1099         }
1100         spin_unlock_bh(&hba->hba_lock);
1101 }
1102
1103 static int bnx2fc_vport_destroy(struct fc_vport *vport)
1104 {
1105         struct Scsi_Host *shost = vport_to_shost(vport);
1106         struct fc_lport *n_port = shost_priv(shost);
1107         struct fc_lport *vn_port = vport->dd_data;
1108         struct fcoe_port *port = lport_priv(vn_port);
1109         struct bnx2fc_interface *interface = port->priv;
1110         struct fc_lport *v_port;
1111         bool found = false;
1112
1113         mutex_lock(&n_port->lp_mutex);
1114         list_for_each_entry(v_port, &n_port->vports, list)
1115                 if (v_port->vport == vport) {
1116                         found = true;
1117                         break;
1118                 }
1119
1120         if (!found) {
1121                 mutex_unlock(&n_port->lp_mutex);
1122                 return -ENOENT;
1123         }
1124         list_del(&vn_port->list);
1125         mutex_unlock(&n_port->lp_mutex);
1126         bnx2fc_free_vport(interface->hba, port->lport);
1127         bnx2fc_port_shutdown(port->lport);
1128         bnx2fc_interface_put(interface);
1129         queue_work(bnx2fc_wq, &port->destroy_work);
1130         return 0;
1131 }
1132
1133 static int bnx2fc_vport_disable(struct fc_vport *vport, bool disable)
1134 {
1135         struct fc_lport *lport = vport->dd_data;
1136
1137         if (disable) {
1138                 fc_vport_set_state(vport, FC_VPORT_DISABLED);
1139                 fc_fabric_logoff(lport);
1140         } else {
1141                 lport->boot_time = jiffies;
1142                 fc_fabric_login(lport);
1143                 fc_vport_setlink(lport);
1144         }
1145         return 0;
1146 }
1147
1148
1149 static int bnx2fc_interface_setup(struct bnx2fc_interface *interface)
1150 {
1151         struct net_device *netdev = interface->netdev;
1152         struct net_device *physdev = interface->hba->phys_dev;
1153         struct netdev_hw_addr *ha;
1154         int sel_san_mac = 0;
1155
1156         /* setup Source MAC Address */
1157         rcu_read_lock();
1158         for_each_dev_addr(physdev, ha) {
1159                 BNX2FC_MISC_DBG("net_config: ha->type = %d, fip_mac = ",
1160                                 ha->type);
1161                 printk(KERN_INFO "%2x:%2x:%2x:%2x:%2x:%2x\n", ha->addr[0],
1162                                 ha->addr[1], ha->addr[2], ha->addr[3],
1163                                 ha->addr[4], ha->addr[5]);
1164
1165                 if ((ha->type == NETDEV_HW_ADDR_T_SAN) &&
1166                     (is_valid_ether_addr(ha->addr))) {
1167                         memcpy(interface->ctlr.ctl_src_addr, ha->addr,
1168                                ETH_ALEN);
1169                         sel_san_mac = 1;
1170                         BNX2FC_MISC_DBG("Found SAN MAC\n");
1171                 }
1172         }
1173         rcu_read_unlock();
1174
1175         if (!sel_san_mac)
1176                 return -ENODEV;
1177
1178         interface->fip_packet_type.func = bnx2fc_fip_recv;
1179         interface->fip_packet_type.type = htons(ETH_P_FIP);
1180         interface->fip_packet_type.dev = netdev;
1181         dev_add_pack(&interface->fip_packet_type);
1182
1183         interface->fcoe_packet_type.func = bnx2fc_rcv;
1184         interface->fcoe_packet_type.type = __constant_htons(ETH_P_FCOE);
1185         interface->fcoe_packet_type.dev = netdev;
1186         dev_add_pack(&interface->fcoe_packet_type);
1187
1188         return 0;
1189 }
1190
1191 static int bnx2fc_attach_transport(void)
1192 {
1193         bnx2fc_transport_template =
1194                 fc_attach_transport(&bnx2fc_transport_function);
1195
1196         if (bnx2fc_transport_template == NULL) {
1197                 printk(KERN_ERR PFX "Failed to attach FC transport\n");
1198                 return -ENODEV;
1199         }
1200
1201         bnx2fc_vport_xport_template =
1202                 fc_attach_transport(&bnx2fc_vport_xport_function);
1203         if (bnx2fc_vport_xport_template == NULL) {
1204                 printk(KERN_ERR PFX
1205                        "Failed to attach FC transport for vport\n");
1206                 fc_release_transport(bnx2fc_transport_template);
1207                 bnx2fc_transport_template = NULL;
1208                 return -ENODEV;
1209         }
1210         return 0;
1211 }
1212 static void bnx2fc_release_transport(void)
1213 {
1214         fc_release_transport(bnx2fc_transport_template);
1215         fc_release_transport(bnx2fc_vport_xport_template);
1216         bnx2fc_transport_template = NULL;
1217         bnx2fc_vport_xport_template = NULL;
1218 }
1219
1220 static void bnx2fc_interface_release(struct kref *kref)
1221 {
1222         struct bnx2fc_interface *interface;
1223         struct net_device *netdev;
1224
1225         interface = container_of(kref, struct bnx2fc_interface, kref);
1226         BNX2FC_MISC_DBG("Interface is being released\n");
1227
1228         netdev = interface->netdev;
1229
1230         /* tear-down FIP controller */
1231         if (test_and_clear_bit(BNX2FC_CTLR_INIT_DONE, &interface->if_flags))
1232                 fcoe_ctlr_destroy(&interface->ctlr);
1233
1234         kfree(interface);
1235
1236         dev_put(netdev);
1237         module_put(THIS_MODULE);
1238 }
1239
1240 static inline void bnx2fc_interface_get(struct bnx2fc_interface *interface)
1241 {
1242         kref_get(&interface->kref);
1243 }
1244
1245 static inline void bnx2fc_interface_put(struct bnx2fc_interface *interface)
1246 {
1247         kref_put(&interface->kref, bnx2fc_interface_release);
1248 }
1249 static void bnx2fc_hba_destroy(struct bnx2fc_hba *hba)
1250 {
1251         /* Free the command manager */
1252         if (hba->cmd_mgr) {
1253                 bnx2fc_cmd_mgr_free(hba->cmd_mgr);
1254                 hba->cmd_mgr = NULL;
1255         }
1256         kfree(hba->tgt_ofld_list);
1257         bnx2fc_unbind_pcidev(hba);
1258         kfree(hba);
1259 }
1260
1261 /**
1262  * bnx2fc_hba_create - create a new bnx2fc hba
1263  *
1264  * @cnic:       pointer to cnic device
1265  *
1266  * Creates a new FCoE hba on the given device.
1267  *
1268  */
1269 static struct bnx2fc_hba *bnx2fc_hba_create(struct cnic_dev *cnic)
1270 {
1271         struct bnx2fc_hba *hba;
1272         int rc;
1273
1274         hba = kzalloc(sizeof(*hba), GFP_KERNEL);
1275         if (!hba) {
1276                 printk(KERN_ERR PFX "Unable to allocate hba structure\n");
1277                 return NULL;
1278         }
1279         spin_lock_init(&hba->hba_lock);
1280         mutex_init(&hba->hba_mutex);
1281
1282         hba->cnic = cnic;
1283         rc = bnx2fc_bind_pcidev(hba);
1284         if (rc) {
1285                 printk(KERN_ERR PFX "create_adapter:  bind error\n");
1286                 goto bind_err;
1287         }
1288         hba->phys_dev = cnic->netdev;
1289         hba->next_conn_id = 0;
1290
1291         hba->tgt_ofld_list =
1292                 kzalloc(sizeof(struct bnx2fc_rport *) * BNX2FC_NUM_MAX_SESS,
1293                         GFP_KERNEL);
1294         if (!hba->tgt_ofld_list) {
1295                 printk(KERN_ERR PFX "Unable to allocate tgt offload list\n");
1296                 goto tgtofld_err;
1297         }
1298
1299         hba->num_ofld_sess = 0;
1300
1301         hba->cmd_mgr = bnx2fc_cmd_mgr_alloc(hba, BNX2FC_MIN_XID,
1302                                                 BNX2FC_MAX_XID);
1303         if (!hba->cmd_mgr) {
1304                 printk(KERN_ERR PFX "em_config:bnx2fc_cmd_mgr_alloc failed\n");
1305                 goto cmgr_err;
1306         }
1307
1308         init_waitqueue_head(&hba->shutdown_wait);
1309         init_waitqueue_head(&hba->destroy_wait);
1310         INIT_LIST_HEAD(&hba->vports);
1311
1312         return hba;
1313
1314 cmgr_err:
1315         kfree(hba->tgt_ofld_list);
1316 tgtofld_err:
1317         bnx2fc_unbind_pcidev(hba);
1318 bind_err:
1319         kfree(hba);
1320         return NULL;
1321 }
1322
1323 struct bnx2fc_interface *bnx2fc_interface_create(struct bnx2fc_hba *hba,
1324                                       struct net_device *netdev,
1325                                       enum fip_state fip_mode)
1326 {
1327         struct bnx2fc_interface *interface;
1328         int rc = 0;
1329
1330         interface = kzalloc(sizeof(*interface), GFP_KERNEL);
1331         if (!interface) {
1332                 printk(KERN_ERR PFX "Unable to allocate interface structure\n");
1333                 return NULL;
1334         }
1335         dev_hold(netdev);
1336         kref_init(&interface->kref);
1337         interface->hba = hba;
1338         interface->netdev = netdev;
1339
1340         /* Initialize FIP */
1341         fcoe_ctlr_init(&interface->ctlr, fip_mode);
1342         interface->ctlr.send = bnx2fc_fip_send;
1343         interface->ctlr.update_mac = bnx2fc_update_src_mac;
1344         interface->ctlr.get_src_addr = bnx2fc_get_src_mac;
1345         set_bit(BNX2FC_CTLR_INIT_DONE, &interface->if_flags);
1346
1347         rc = bnx2fc_interface_setup(interface);
1348         if (!rc)
1349                 return interface;
1350
1351         fcoe_ctlr_destroy(&interface->ctlr);
1352         dev_put(netdev);
1353         kfree(interface);
1354         return NULL;
1355 }
1356
1357 /**
1358  * bnx2fc_if_create - Create FCoE instance on a given interface
1359  *
1360  * @interface:  FCoE interface to create a local port on
1361  * @parent:     Device pointer to be the parent in sysfs for the SCSI host
1362  * @npiv:       Indicates if the port is vport or not
1363  *
1364  * Creates a fc_lport instance and a Scsi_Host instance and configure them.
1365  *
1366  * Returns:     Allocated fc_lport or an error pointer
1367  */
1368 static struct fc_lport *bnx2fc_if_create(struct bnx2fc_interface *interface,
1369                                   struct device *parent, int npiv)
1370 {
1371         struct fc_lport         *lport, *n_port;
1372         struct fcoe_port        *port;
1373         struct Scsi_Host        *shost;
1374         struct fc_vport         *vport = dev_to_vport(parent);
1375         struct bnx2fc_lport     *blport;
1376         struct bnx2fc_hba       *hba;
1377         int                     rc = 0;
1378
1379         blport = kzalloc(sizeof(struct bnx2fc_lport), GFP_KERNEL);
1380         if (!blport) {
1381                 BNX2FC_HBA_DBG(interface->ctlr.lp, "Unable to alloc blport\n");
1382                 return NULL;
1383         }
1384
1385         /* Allocate Scsi_Host structure */
1386         if (!npiv)
1387                 lport = libfc_host_alloc(&bnx2fc_shost_template, sizeof(*port));
1388         else
1389                 lport = libfc_vport_create(vport, sizeof(*port));
1390
1391         if (!lport) {
1392                 printk(KERN_ERR PFX "could not allocate scsi host structure\n");
1393                 goto free_blport;
1394         }
1395         shost = lport->host;
1396         port = lport_priv(lport);
1397         port->lport = lport;
1398         port->priv = interface;
1399         INIT_WORK(&port->destroy_work, bnx2fc_destroy_work);
1400
1401         /* Configure fcoe_port */
1402         rc = bnx2fc_lport_config(lport);
1403         if (rc)
1404                 goto lp_config_err;
1405
1406         if (npiv) {
1407                 printk(KERN_ERR PFX "Setting vport names, 0x%llX 0x%llX\n",
1408                         vport->node_name, vport->port_name);
1409                 fc_set_wwnn(lport, vport->node_name);
1410                 fc_set_wwpn(lport, vport->port_name);
1411         }
1412         /* Configure netdev and networking properties of the lport */
1413         rc = bnx2fc_net_config(lport, interface->netdev);
1414         if (rc) {
1415                 printk(KERN_ERR PFX "Error on bnx2fc_net_config\n");
1416                 goto lp_config_err;
1417         }
1418
1419         rc = bnx2fc_shost_config(lport, parent);
1420         if (rc) {
1421                 printk(KERN_ERR PFX "Couldnt configure shost for %s\n",
1422                         interface->netdev->name);
1423                 goto lp_config_err;
1424         }
1425
1426         /* Initialize the libfc library */
1427         rc = bnx2fc_libfc_config(lport);
1428         if (rc) {
1429                 printk(KERN_ERR PFX "Couldnt configure libfc\n");
1430                 goto shost_err;
1431         }
1432         fc_host_port_type(lport->host) = FC_PORTTYPE_UNKNOWN;
1433
1434         /* Allocate exchange manager */
1435         if (!npiv)
1436                 rc = bnx2fc_em_config(lport);
1437         else {
1438                 shost = vport_to_shost(vport);
1439                 n_port = shost_priv(shost);
1440                 rc = fc_exch_mgr_list_clone(n_port, lport);
1441         }
1442
1443         if (rc) {
1444                 printk(KERN_ERR PFX "Error on bnx2fc_em_config\n");
1445                 goto shost_err;
1446         }
1447
1448         bnx2fc_interface_get(interface);
1449
1450         hba = interface->hba;
1451         spin_lock_bh(&hba->hba_lock);
1452         blport->lport = lport;
1453         list_add_tail(&blport->list, &hba->vports);
1454         spin_unlock_bh(&hba->hba_lock);
1455
1456         return lport;
1457
1458 shost_err:
1459         scsi_remove_host(shost);
1460 lp_config_err:
1461         scsi_host_put(lport->host);
1462 free_blport:
1463         kfree(blport);
1464         return NULL;
1465 }
1466
1467 static void bnx2fc_net_cleanup(struct bnx2fc_interface *interface)
1468 {
1469         /* Dont listen for Ethernet packets anymore */
1470         __dev_remove_pack(&interface->fcoe_packet_type);
1471         __dev_remove_pack(&interface->fip_packet_type);
1472         synchronize_net();
1473 }
1474
1475 static void bnx2fc_interface_cleanup(struct bnx2fc_interface *interface)
1476 {
1477         struct fc_lport *lport = interface->ctlr.lp;
1478         struct fcoe_port *port = lport_priv(lport);
1479         struct bnx2fc_hba *hba = interface->hba;
1480
1481         /* Stop the transmit retry timer */
1482         del_timer_sync(&port->timer);
1483
1484         /* Free existing transmit skbs */
1485         fcoe_clean_pending_queue(lport);
1486
1487         bnx2fc_net_cleanup(interface);
1488
1489         bnx2fc_free_vport(hba, lport);
1490 }
1491
1492 static void bnx2fc_if_destroy(struct fc_lport *lport)
1493 {
1494
1495         /* Free queued packets for the receive thread */
1496         bnx2fc_clean_rx_queue(lport);
1497
1498         /* Detach from scsi-ml */
1499         fc_remove_host(lport->host);
1500         scsi_remove_host(lport->host);
1501
1502         /*
1503          * Note that only the physical lport will have the exchange manager.
1504          * for vports, this function is NOP
1505          */
1506         fc_exch_mgr_free(lport);
1507
1508         /* Free memory used by statistical counters */
1509         fc_lport_free_stats(lport);
1510
1511         /* Release Scsi_Host */
1512         scsi_host_put(lport->host);
1513 }
1514
1515 static void __bnx2fc_destroy(struct bnx2fc_interface *interface)
1516 {
1517         struct fc_lport *lport = interface->ctlr.lp;
1518         struct fcoe_port *port = lport_priv(lport);
1519
1520         bnx2fc_interface_cleanup(interface);
1521         bnx2fc_stop(interface);
1522         list_del(&interface->list);
1523         bnx2fc_interface_put(interface);
1524         queue_work(bnx2fc_wq, &port->destroy_work);
1525 }
1526
1527 /**
1528  * bnx2fc_destroy - Destroy a bnx2fc FCoE interface
1529  *
1530  * @buffer: The name of the Ethernet interface to be destroyed
1531  * @kp:     The associated kernel parameter
1532  *
1533  * Called from sysfs.
1534  *
1535  * Returns: 0 for success
1536  */
1537 static int bnx2fc_destroy(struct net_device *netdev)
1538 {
1539         struct bnx2fc_interface *interface = NULL;
1540         int rc = 0;
1541
1542         rtnl_lock();
1543         mutex_lock(&bnx2fc_dev_lock);
1544
1545         interface = bnx2fc_interface_lookup(netdev);
1546         if (!interface || !interface->ctlr.lp) {
1547                 rc = -ENODEV;
1548                 printk(KERN_ERR PFX "bnx2fc_destroy: interface or lport not found\n");
1549                 goto netdev_err;
1550         }
1551
1552
1553         destroy_workqueue(interface->timer_work_queue);
1554         __bnx2fc_destroy(interface);
1555
1556 netdev_err:
1557         mutex_unlock(&bnx2fc_dev_lock);
1558         rtnl_unlock();
1559         return rc;
1560 }
1561
1562 static void bnx2fc_destroy_work(struct work_struct *work)
1563 {
1564         struct fcoe_port *port;
1565         struct fc_lport *lport;
1566
1567         port = container_of(work, struct fcoe_port, destroy_work);
1568         lport = port->lport;
1569
1570         BNX2FC_HBA_DBG(lport, "Entered bnx2fc_destroy_work\n");
1571
1572         bnx2fc_if_destroy(lport);
1573 }
1574
1575 static void bnx2fc_unbind_adapter_devices(struct bnx2fc_hba *hba)
1576 {
1577         bnx2fc_free_fw_resc(hba);
1578         bnx2fc_free_task_ctx(hba);
1579 }
1580
1581 /**
1582  * bnx2fc_bind_adapter_devices - binds bnx2fc adapter with the associated
1583  *                      pci structure
1584  *
1585  * @hba:                Adapter instance
1586  */
1587 static int bnx2fc_bind_adapter_devices(struct bnx2fc_hba *hba)
1588 {
1589         if (bnx2fc_setup_task_ctx(hba))
1590                 goto mem_err;
1591
1592         if (bnx2fc_setup_fw_resc(hba))
1593                 goto mem_err;
1594
1595         return 0;
1596 mem_err:
1597         bnx2fc_unbind_adapter_devices(hba);
1598         return -ENOMEM;
1599 }
1600
1601 static int bnx2fc_bind_pcidev(struct bnx2fc_hba *hba)
1602 {
1603         struct cnic_dev *cnic;
1604
1605         if (!hba->cnic) {
1606                 printk(KERN_ERR PFX "cnic is NULL\n");
1607                 return -ENODEV;
1608         }
1609         cnic = hba->cnic;
1610         hba->pcidev = cnic->pcidev;
1611         if (hba->pcidev)
1612                 pci_dev_get(hba->pcidev);
1613
1614         return 0;
1615 }
1616
1617 static void bnx2fc_unbind_pcidev(struct bnx2fc_hba *hba)
1618 {
1619         if (hba->pcidev)
1620                 pci_dev_put(hba->pcidev);
1621         hba->pcidev = NULL;
1622 }
1623
1624
1625
1626 /**
1627  * bnx2fc_ulp_start - cnic callback to initialize & start adapter instance
1628  *
1629  * @handle:     transport handle pointing to adapter struture
1630  *
1631  * This function maps adapter structure to pcidev structure and initiates
1632  *      firmware handshake to enable/initialize on-chip FCoE components.
1633  *      This bnx2fc - cnic interface api callback is used after following
1634  *      conditions are met -
1635  *      a) underlying network interface is up (marked by event NETDEV_UP
1636  *              from netdev
1637  *      b) bnx2fc adatper structure is registered.
1638  */
1639 static void bnx2fc_ulp_start(void *handle)
1640 {
1641         struct bnx2fc_hba *hba = handle;
1642         struct bnx2fc_interface *interface;
1643         struct fc_lport *lport;
1644
1645         mutex_lock(&bnx2fc_dev_lock);
1646
1647         if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags))
1648                 bnx2fc_fw_init(hba);
1649
1650         BNX2FC_MISC_DBG("bnx2fc started.\n");
1651
1652         list_for_each_entry(interface, &if_list, list) {
1653                 if (interface->hba == hba) {
1654                         lport = interface->ctlr.lp;
1655                         /* Kick off Fabric discovery*/
1656                         printk(KERN_ERR PFX "ulp_init: start discovery\n");
1657                         lport->tt.frame_send = bnx2fc_xmit;
1658                         bnx2fc_start_disc(interface);
1659                 }
1660         }
1661
1662         mutex_unlock(&bnx2fc_dev_lock);
1663 }
1664
1665 static void bnx2fc_port_shutdown(struct fc_lport *lport)
1666 {
1667         BNX2FC_MISC_DBG("Entered %s\n", __func__);
1668         fc_fabric_logoff(lport);
1669         fc_lport_destroy(lport);
1670 }
1671
1672 static void bnx2fc_stop(struct bnx2fc_interface *interface)
1673 {
1674         struct fc_lport *lport;
1675         struct fc_lport *vport;
1676
1677         if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &interface->hba->flags))
1678                 return;
1679
1680         lport = interface->ctlr.lp;
1681         bnx2fc_port_shutdown(lport);
1682
1683         mutex_lock(&lport->lp_mutex);
1684         list_for_each_entry(vport, &lport->vports, list)
1685                 fc_host_port_type(vport->host) =
1686                                         FC_PORTTYPE_UNKNOWN;
1687         mutex_unlock(&lport->lp_mutex);
1688         fc_host_port_type(lport->host) = FC_PORTTYPE_UNKNOWN;
1689         fcoe_ctlr_link_down(&interface->ctlr);
1690         fcoe_clean_pending_queue(lport);
1691 }
1692
1693 static int bnx2fc_fw_init(struct bnx2fc_hba *hba)
1694 {
1695 #define BNX2FC_INIT_POLL_TIME           (1000 / HZ)
1696         int rc = -1;
1697         int i = HZ;
1698
1699         rc = bnx2fc_bind_adapter_devices(hba);
1700         if (rc) {
1701                 printk(KERN_ALERT PFX
1702                         "bnx2fc_bind_adapter_devices failed - rc = %d\n", rc);
1703                 goto err_out;
1704         }
1705
1706         rc = bnx2fc_send_fw_fcoe_init_msg(hba);
1707         if (rc) {
1708                 printk(KERN_ALERT PFX
1709                         "bnx2fc_send_fw_fcoe_init_msg failed - rc = %d\n", rc);
1710                 goto err_unbind;
1711         }
1712
1713         /*
1714          * Wait until the adapter init message is complete, and adapter
1715          * state is UP.
1716          */
1717         while (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state) && i--)
1718                 msleep(BNX2FC_INIT_POLL_TIME);
1719
1720         if (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state)) {
1721                 printk(KERN_ERR PFX "bnx2fc_start: %s failed to initialize.  "
1722                                 "Ignoring...\n",
1723                                 hba->cnic->netdev->name);
1724                 rc = -1;
1725                 goto err_unbind;
1726         }
1727
1728
1729         set_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags);
1730         return 0;
1731
1732 err_unbind:
1733         bnx2fc_unbind_adapter_devices(hba);
1734 err_out:
1735         return rc;
1736 }
1737
1738 static void bnx2fc_fw_destroy(struct bnx2fc_hba *hba)
1739 {
1740         if (test_and_clear_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags)) {
1741                 if (bnx2fc_send_fw_fcoe_destroy_msg(hba) == 0) {
1742                         init_timer(&hba->destroy_timer);
1743                         hba->destroy_timer.expires = BNX2FC_FW_TIMEOUT +
1744                                                                 jiffies;
1745                         hba->destroy_timer.function = bnx2fc_destroy_timer;
1746                         hba->destroy_timer.data = (unsigned long)hba;
1747                         add_timer(&hba->destroy_timer);
1748                         wait_event_interruptible(hba->destroy_wait,
1749                                         test_bit(BNX2FC_FLAG_DESTROY_CMPL,
1750                                                  &hba->flags));
1751                         clear_bit(BNX2FC_FLAG_DESTROY_CMPL, &hba->flags);
1752                         /* This should never happen */
1753                         if (signal_pending(current))
1754                                 flush_signals(current);
1755
1756                         del_timer_sync(&hba->destroy_timer);
1757                 }
1758                 bnx2fc_unbind_adapter_devices(hba);
1759         }
1760 }
1761
1762 /**
1763  * bnx2fc_ulp_stop - cnic callback to shutdown adapter instance
1764  *
1765  * @handle:     transport handle pointing to adapter structure
1766  *
1767  * Driver checks if adapter is already in shutdown mode, if not start
1768  *      the shutdown process.
1769  */
1770 static void bnx2fc_ulp_stop(void *handle)
1771 {
1772         struct bnx2fc_hba *hba = handle;
1773         struct bnx2fc_interface *interface;
1774
1775         printk(KERN_ERR "ULP_STOP\n");
1776
1777         mutex_lock(&bnx2fc_dev_lock);
1778         if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags))
1779                 goto exit;
1780         list_for_each_entry(interface, &if_list, list) {
1781                 if (interface->hba == hba)
1782                         bnx2fc_stop(interface);
1783         }
1784         BUG_ON(hba->num_ofld_sess != 0);
1785
1786         mutex_lock(&hba->hba_mutex);
1787         clear_bit(ADAPTER_STATE_UP, &hba->adapter_state);
1788         clear_bit(ADAPTER_STATE_GOING_DOWN,
1789                   &hba->adapter_state);
1790
1791         clear_bit(ADAPTER_STATE_READY, &hba->adapter_state);
1792         mutex_unlock(&hba->hba_mutex);
1793
1794         bnx2fc_fw_destroy(hba);
1795 exit:
1796         mutex_unlock(&bnx2fc_dev_lock);
1797 }
1798
1799 static void bnx2fc_start_disc(struct bnx2fc_interface *interface)
1800 {
1801         struct fc_lport *lport;
1802         int wait_cnt = 0;
1803
1804         BNX2FC_MISC_DBG("Entered %s\n", __func__);
1805         /* Kick off FIP/FLOGI */
1806         if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &interface->hba->flags)) {
1807                 printk(KERN_ERR PFX "Init not done yet\n");
1808                 return;
1809         }
1810
1811         lport = interface->ctlr.lp;
1812         BNX2FC_HBA_DBG(lport, "calling fc_fabric_login\n");
1813
1814         if (!bnx2fc_link_ok(lport) && interface->enabled) {
1815                 BNX2FC_HBA_DBG(lport, "ctlr_link_up\n");
1816                 fcoe_ctlr_link_up(&interface->ctlr);
1817                 fc_host_port_type(lport->host) = FC_PORTTYPE_NPORT;
1818                 set_bit(ADAPTER_STATE_READY, &interface->hba->adapter_state);
1819         }
1820
1821         /* wait for the FCF to be selected before issuing FLOGI */
1822         while (!interface->ctlr.sel_fcf) {
1823                 msleep(250);
1824                 /* give up after 3 secs */
1825                 if (++wait_cnt > 12)
1826                         break;
1827         }
1828
1829         /* Reset max receive frame size to default */
1830         if (fc_set_mfs(lport, BNX2FC_MFS))
1831                 return;
1832
1833         fc_lport_init(lport);
1834         fc_fabric_login(lport);
1835 }
1836
1837
1838 /**
1839  * bnx2fc_ulp_init - Initialize an adapter instance
1840  *
1841  * @dev :       cnic device handle
1842  * Called from cnic_register_driver() context to initialize all
1843  *      enumerated cnic devices. This routine allocates adapter structure
1844  *      and other device specific resources.
1845  */
1846 static void bnx2fc_ulp_init(struct cnic_dev *dev)
1847 {
1848         struct bnx2fc_hba *hba;
1849         int rc = 0;
1850
1851         BNX2FC_MISC_DBG("Entered %s\n", __func__);
1852         /* bnx2fc works only when bnx2x is loaded */
1853         if (!test_bit(CNIC_F_BNX2X_CLASS, &dev->flags) ||
1854             (dev->max_fcoe_conn == 0)) {
1855                 printk(KERN_ERR PFX "bnx2fc FCoE not supported on %s,"
1856                                     " flags: %lx fcoe_conn: %d\n",
1857                         dev->netdev->name, dev->flags, dev->max_fcoe_conn);
1858                 return;
1859         }
1860
1861         hba = bnx2fc_hba_create(dev);
1862         if (!hba) {
1863                 printk(KERN_ERR PFX "hba initialization failed\n");
1864                 return;
1865         }
1866
1867         /* Add HBA to the adapter list */
1868         mutex_lock(&bnx2fc_dev_lock);
1869         list_add_tail(&hba->list, &adapter_list);
1870         adapter_count++;
1871         mutex_unlock(&bnx2fc_dev_lock);
1872
1873         clear_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic);
1874         rc = dev->register_device(dev, CNIC_ULP_FCOE,
1875                                                 (void *) hba);
1876         if (rc)
1877                 printk(KERN_ERR PFX "register_device failed, rc = %d\n", rc);
1878         else
1879                 set_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic);
1880 }
1881
1882
1883 static int bnx2fc_disable(struct net_device *netdev)
1884 {
1885         struct bnx2fc_interface *interface;
1886         int rc = 0;
1887
1888         rtnl_lock();
1889         mutex_lock(&bnx2fc_dev_lock);
1890
1891         interface = bnx2fc_interface_lookup(netdev);
1892         if (!interface || !interface->ctlr.lp) {
1893                 rc = -ENODEV;
1894                 printk(KERN_ERR PFX "bnx2fc_disable: interface or lport not found\n");
1895         } else {
1896                 interface->enabled = false;
1897                 fcoe_ctlr_link_down(&interface->ctlr);
1898                 fcoe_clean_pending_queue(interface->ctlr.lp);
1899         }
1900
1901         mutex_unlock(&bnx2fc_dev_lock);
1902         rtnl_unlock();
1903         return rc;
1904 }
1905
1906
1907 static int bnx2fc_enable(struct net_device *netdev)
1908 {
1909         struct bnx2fc_interface *interface;
1910         int rc = 0;
1911
1912         rtnl_lock();
1913         mutex_lock(&bnx2fc_dev_lock);
1914
1915         interface = bnx2fc_interface_lookup(netdev);
1916         if (!interface || !interface->ctlr.lp) {
1917                 rc = -ENODEV;
1918                 printk(KERN_ERR PFX "bnx2fc_enable: interface or lport not found\n");
1919         } else if (!bnx2fc_link_ok(interface->ctlr.lp)) {
1920                 fcoe_ctlr_link_up(&interface->ctlr);
1921                 interface->enabled = true;
1922         }
1923
1924         mutex_unlock(&bnx2fc_dev_lock);
1925         rtnl_unlock();
1926         return rc;
1927 }
1928
1929 /**
1930  * bnx2fc_create - Create bnx2fc FCoE interface
1931  *
1932  * @buffer: The name of Ethernet interface to create on
1933  * @kp:     The associated kernel param
1934  *
1935  * Called from sysfs.
1936  *
1937  * Returns: 0 for success
1938  */
1939 static int bnx2fc_create(struct net_device *netdev, enum fip_state fip_mode)
1940 {
1941         struct bnx2fc_interface *interface;
1942         struct bnx2fc_hba *hba;
1943         struct net_device *phys_dev;
1944         struct fc_lport *lport;
1945         struct ethtool_drvinfo drvinfo;
1946         int rc = 0;
1947         int vlan_id;
1948
1949         BNX2FC_MISC_DBG("Entered bnx2fc_create\n");
1950         if (fip_mode != FIP_MODE_FABRIC) {
1951                 printk(KERN_ERR "fip mode not FABRIC\n");
1952                 return -EIO;
1953         }
1954
1955         rtnl_lock();
1956
1957         mutex_lock(&bnx2fc_dev_lock);
1958
1959         if (!try_module_get(THIS_MODULE)) {
1960                 rc = -EINVAL;
1961                 goto mod_err;
1962         }
1963
1964         /* obtain physical netdev */
1965         if (netdev->priv_flags & IFF_802_1Q_VLAN) {
1966                 phys_dev = vlan_dev_real_dev(netdev);
1967                 vlan_id = vlan_dev_vlan_id(netdev);
1968         } else {
1969                 printk(KERN_ERR PFX "Not a vlan device\n");
1970                 rc = -EINVAL;
1971                 goto netdev_err;
1972         }
1973         /* verify if the physical device is a netxtreme2 device */
1974         if (phys_dev->ethtool_ops && phys_dev->ethtool_ops->get_drvinfo) {
1975                 memset(&drvinfo, 0, sizeof(drvinfo));
1976                 phys_dev->ethtool_ops->get_drvinfo(phys_dev, &drvinfo);
1977                 if (strncmp(drvinfo.driver, "bnx2x", strlen("bnx2x"))) {
1978                         printk(KERN_ERR PFX "Not a netxtreme2 device\n");
1979                         rc = -EINVAL;
1980                         goto netdev_err;
1981                 }
1982         } else {
1983                 printk(KERN_ERR PFX "unable to obtain drv_info\n");
1984                 rc = -EINVAL;
1985                 goto netdev_err;
1986         }
1987
1988         /* obtain interface and initialize rest of the structure */
1989         hba = bnx2fc_hba_lookup(phys_dev);
1990         if (!hba) {
1991                 rc = -ENODEV;
1992                 printk(KERN_ERR PFX "bnx2fc_create: hba not found\n");
1993                 goto netdev_err;
1994         }
1995
1996         if (bnx2fc_interface_lookup(netdev)) {
1997                 rc = -EEXIST;
1998                 goto netdev_err;
1999         }
2000
2001         interface = bnx2fc_interface_create(hba, netdev, fip_mode);
2002         if (!interface) {
2003                 printk(KERN_ERR PFX "bnx2fc_interface_create failed\n");
2004                 goto ifput_err;
2005         }
2006
2007         interface->vlan_id = vlan_id;
2008         interface->vlan_enabled = 1;
2009
2010         interface->timer_work_queue =
2011                         create_singlethread_workqueue("bnx2fc_timer_wq");
2012         if (!interface->timer_work_queue) {
2013                 printk(KERN_ERR PFX "ulp_init could not create timer_wq\n");
2014                 rc = -EINVAL;
2015                 goto ifput_err;
2016         }
2017
2018         lport = bnx2fc_if_create(interface, &interface->hba->pcidev->dev, 0);
2019         if (!lport) {
2020                 printk(KERN_ERR PFX "Failed to create interface (%s)\n",
2021                         netdev->name);
2022                 rc = -EINVAL;
2023                 goto if_create_err;
2024         }
2025
2026         /* Add interface to if_list */
2027         list_add_tail(&interface->list, &if_list);
2028
2029         lport->boot_time = jiffies;
2030
2031         /* Make this master N_port */
2032         interface->ctlr.lp = lport;
2033
2034         if (!bnx2fc_link_ok(lport)) {
2035                 fcoe_ctlr_link_up(&interface->ctlr);
2036                 fc_host_port_type(lport->host) = FC_PORTTYPE_NPORT;
2037                 set_bit(ADAPTER_STATE_READY, &interface->hba->adapter_state);
2038         }
2039
2040         BNX2FC_HBA_DBG(lport, "create: START DISC\n");
2041         bnx2fc_start_disc(interface);
2042         interface->enabled = true;
2043         /*
2044          * Release from kref_init in bnx2fc_interface_setup, on success
2045          * lport should be holding a reference taken in bnx2fc_if_create
2046          */
2047         bnx2fc_interface_put(interface);
2048         /* put netdev that was held while calling dev_get_by_name */
2049         mutex_unlock(&bnx2fc_dev_lock);
2050         rtnl_unlock();
2051         return 0;
2052
2053 if_create_err:
2054         destroy_workqueue(interface->timer_work_queue);
2055 ifput_err:
2056         bnx2fc_net_cleanup(interface);
2057         bnx2fc_interface_put(interface);
2058 netdev_err:
2059         module_put(THIS_MODULE);
2060 mod_err:
2061         mutex_unlock(&bnx2fc_dev_lock);
2062         rtnl_unlock();
2063         return rc;
2064 }
2065
2066 /**
2067  * bnx2fc_find_hba_for_cnic - maps cnic instance to bnx2fc hba instance
2068  *
2069  * @cnic:       Pointer to cnic device instance
2070  *
2071  **/
2072 static struct bnx2fc_hba *bnx2fc_find_hba_for_cnic(struct cnic_dev *cnic)
2073 {
2074         struct list_head *list;
2075         struct list_head *temp;
2076         struct bnx2fc_hba *hba;
2077
2078         /* Called with bnx2fc_dev_lock held */
2079         list_for_each_safe(list, temp, &adapter_list) {
2080                 hba = (struct bnx2fc_hba *)list;
2081                 if (hba->cnic == cnic)
2082                         return hba;
2083         }
2084         return NULL;
2085 }
2086
2087 static struct bnx2fc_interface *bnx2fc_interface_lookup(struct net_device
2088                                                         *netdev)
2089 {
2090         struct bnx2fc_interface *interface;
2091
2092         /* Called with bnx2fc_dev_lock held */
2093         list_for_each_entry(interface, &if_list, list) {
2094                 if (interface->netdev == netdev)
2095                         return interface;
2096         }
2097         return NULL;
2098 }
2099
2100 static struct bnx2fc_hba *bnx2fc_hba_lookup(struct net_device
2101                                                       *phys_dev)
2102 {
2103         struct bnx2fc_hba *hba;
2104
2105         /* Called with bnx2fc_dev_lock held */
2106         list_for_each_entry(hba, &adapter_list, list) {
2107                 if (hba->phys_dev == phys_dev)
2108                         return hba;
2109         }
2110         printk(KERN_ERR PFX "adapter_lookup: hba NULL\n");
2111         return NULL;
2112 }
2113
2114 /**
2115  * bnx2fc_ulp_exit - shuts down adapter instance and frees all resources
2116  *
2117  * @dev         cnic device handle
2118  */
2119 static void bnx2fc_ulp_exit(struct cnic_dev *dev)
2120 {
2121         struct bnx2fc_hba *hba;
2122         struct bnx2fc_interface *interface, *tmp;
2123
2124         BNX2FC_MISC_DBG("Entered bnx2fc_ulp_exit\n");
2125
2126         if (!test_bit(CNIC_F_BNX2X_CLASS, &dev->flags)) {
2127                 printk(KERN_ERR PFX "bnx2fc port check: %s, flags: %lx\n",
2128                         dev->netdev->name, dev->flags);
2129                 return;
2130         }
2131
2132         mutex_lock(&bnx2fc_dev_lock);
2133         hba = bnx2fc_find_hba_for_cnic(dev);
2134         if (!hba) {
2135                 printk(KERN_ERR PFX "bnx2fc_ulp_exit: hba not found, dev 0%p\n",
2136                        dev);
2137                 mutex_unlock(&bnx2fc_dev_lock);
2138                 return;
2139         }
2140
2141         list_del_init(&hba->list);
2142         adapter_count--;
2143
2144         list_for_each_entry_safe(interface, tmp, &if_list, list)
2145                 /* destroy not called yet, move to quiesced list */
2146                 if (interface->hba == hba)
2147                         __bnx2fc_destroy(interface);
2148         mutex_unlock(&bnx2fc_dev_lock);
2149
2150         bnx2fc_ulp_stop(hba);
2151         /* unregister cnic device */
2152         if (test_and_clear_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic))
2153                 hba->cnic->unregister_device(hba->cnic, CNIC_ULP_FCOE);
2154         bnx2fc_hba_destroy(hba);
2155 }
2156
2157 /**
2158  * bnx2fc_fcoe_reset - Resets the fcoe
2159  *
2160  * @shost: shost the reset is from
2161  *
2162  * Returns: always 0
2163  */
2164 static int bnx2fc_fcoe_reset(struct Scsi_Host *shost)
2165 {
2166         struct fc_lport *lport = shost_priv(shost);
2167         fc_lport_reset(lport);
2168         return 0;
2169 }
2170
2171
2172 static bool bnx2fc_match(struct net_device *netdev)
2173 {
2174         mutex_lock(&bnx2fc_dev_lock);
2175         if (netdev->priv_flags & IFF_802_1Q_VLAN) {
2176                 struct net_device *phys_dev = vlan_dev_real_dev(netdev);
2177
2178                 if (bnx2fc_hba_lookup(phys_dev)) {
2179                         mutex_unlock(&bnx2fc_dev_lock);
2180                         return true;
2181                 }
2182         }
2183         mutex_unlock(&bnx2fc_dev_lock);
2184         return false;
2185 }
2186
2187
2188 static struct fcoe_transport bnx2fc_transport = {
2189         .name = {"bnx2fc"},
2190         .attached = false,
2191         .list = LIST_HEAD_INIT(bnx2fc_transport.list),
2192         .match = bnx2fc_match,
2193         .create = bnx2fc_create,
2194         .destroy = bnx2fc_destroy,
2195         .enable = bnx2fc_enable,
2196         .disable = bnx2fc_disable,
2197 };
2198
2199 /**
2200  * bnx2fc_percpu_thread_create - Create a receive thread for an
2201  *                               online CPU
2202  *
2203  * @cpu: cpu index for the online cpu
2204  */
2205 static void bnx2fc_percpu_thread_create(unsigned int cpu)
2206 {
2207         struct bnx2fc_percpu_s *p;
2208         struct task_struct *thread;
2209
2210         p = &per_cpu(bnx2fc_percpu, cpu);
2211
2212         thread = kthread_create(bnx2fc_percpu_io_thread,
2213                                 (void *)p,
2214                                 "bnx2fc_thread/%d", cpu);
2215         /* bind thread to the cpu */
2216         if (likely(!IS_ERR(thread))) {
2217                 kthread_bind(thread, cpu);
2218                 p->iothread = thread;
2219                 wake_up_process(thread);
2220         }
2221 }
2222
2223 static void bnx2fc_percpu_thread_destroy(unsigned int cpu)
2224 {
2225         struct bnx2fc_percpu_s *p;
2226         struct task_struct *thread;
2227         struct bnx2fc_work *work, *tmp;
2228
2229         BNX2FC_MISC_DBG("destroying io thread for CPU %d\n", cpu);
2230
2231         /* Prevent any new work from being queued for this CPU */
2232         p = &per_cpu(bnx2fc_percpu, cpu);
2233         spin_lock_bh(&p->fp_work_lock);
2234         thread = p->iothread;
2235         p->iothread = NULL;
2236
2237
2238         /* Free all work in the list */
2239         list_for_each_entry_safe(work, tmp, &p->work_list, list) {
2240                 list_del_init(&work->list);
2241                 bnx2fc_process_cq_compl(work->tgt, work->wqe);
2242                 kfree(work);
2243         }
2244
2245         spin_unlock_bh(&p->fp_work_lock);
2246
2247         if (thread)
2248                 kthread_stop(thread);
2249 }
2250
2251 /**
2252  * bnx2fc_cpu_callback - Handler for CPU hotplug events
2253  *
2254  * @nfb:    The callback data block
2255  * @action: The event triggering the callback
2256  * @hcpu:   The index of the CPU that the event is for
2257  *
2258  * This creates or destroys per-CPU data for fcoe
2259  *
2260  * Returns NOTIFY_OK always.
2261  */
2262 static int bnx2fc_cpu_callback(struct notifier_block *nfb,
2263                              unsigned long action, void *hcpu)
2264 {
2265         unsigned cpu = (unsigned long)hcpu;
2266
2267         switch (action) {
2268         case CPU_ONLINE:
2269         case CPU_ONLINE_FROZEN:
2270                 printk(PFX "CPU %x online: Create Rx thread\n", cpu);
2271                 bnx2fc_percpu_thread_create(cpu);
2272                 break;
2273         case CPU_DEAD:
2274         case CPU_DEAD_FROZEN:
2275                 printk(PFX "CPU %x offline: Remove Rx thread\n", cpu);
2276                 bnx2fc_percpu_thread_destroy(cpu);
2277                 break;
2278         default:
2279                 break;
2280         }
2281         return NOTIFY_OK;
2282 }
2283
2284 /**
2285  * bnx2fc_mod_init - module init entry point
2286  *
2287  * Initialize driver wide global data structures, and register
2288  * with cnic module
2289  **/
2290 static int __init bnx2fc_mod_init(void)
2291 {
2292         struct fcoe_percpu_s *bg;
2293         struct task_struct *l2_thread;
2294         int rc = 0;
2295         unsigned int cpu = 0;
2296         struct bnx2fc_percpu_s *p;
2297
2298         printk(KERN_INFO PFX "%s", version);
2299
2300         /* register as a fcoe transport */
2301         rc = fcoe_transport_attach(&bnx2fc_transport);
2302         if (rc) {
2303                 printk(KERN_ERR "failed to register an fcoe transport, check "
2304                         "if libfcoe is loaded\n");
2305                 goto out;
2306         }
2307
2308         INIT_LIST_HEAD(&adapter_list);
2309         INIT_LIST_HEAD(&if_list);
2310         mutex_init(&bnx2fc_dev_lock);
2311         adapter_count = 0;
2312
2313         /* Attach FC transport template */
2314         rc = bnx2fc_attach_transport();
2315         if (rc)
2316                 goto detach_ft;
2317
2318         bnx2fc_wq = alloc_workqueue("bnx2fc", 0, 0);
2319         if (!bnx2fc_wq) {
2320                 rc = -ENOMEM;
2321                 goto release_bt;
2322         }
2323
2324         bg = &bnx2fc_global;
2325         skb_queue_head_init(&bg->fcoe_rx_list);
2326         l2_thread = kthread_create(bnx2fc_l2_rcv_thread,
2327                                    (void *)bg,
2328                                    "bnx2fc_l2_thread");
2329         if (IS_ERR(l2_thread)) {
2330                 rc = PTR_ERR(l2_thread);
2331                 goto free_wq;
2332         }
2333         wake_up_process(l2_thread);
2334         spin_lock_bh(&bg->fcoe_rx_list.lock);
2335         bg->thread = l2_thread;
2336         spin_unlock_bh(&bg->fcoe_rx_list.lock);
2337
2338         for_each_possible_cpu(cpu) {
2339                 p = &per_cpu(bnx2fc_percpu, cpu);
2340                 INIT_LIST_HEAD(&p->work_list);
2341                 spin_lock_init(&p->fp_work_lock);
2342         }
2343
2344         for_each_online_cpu(cpu) {
2345                 bnx2fc_percpu_thread_create(cpu);
2346         }
2347
2348         /* Initialize per CPU interrupt thread */
2349         register_hotcpu_notifier(&bnx2fc_cpu_notifier);
2350
2351         cnic_register_driver(CNIC_ULP_FCOE, &bnx2fc_cnic_cb);
2352
2353         return 0;
2354
2355 free_wq:
2356         destroy_workqueue(bnx2fc_wq);
2357 release_bt:
2358         bnx2fc_release_transport();
2359 detach_ft:
2360         fcoe_transport_detach(&bnx2fc_transport);
2361 out:
2362         return rc;
2363 }
2364
2365 static void __exit bnx2fc_mod_exit(void)
2366 {
2367         LIST_HEAD(to_be_deleted);
2368         struct bnx2fc_hba *hba, *next;
2369         struct fcoe_percpu_s *bg;
2370         struct task_struct *l2_thread;
2371         struct sk_buff *skb;
2372         unsigned int cpu = 0;
2373
2374         /*
2375          * NOTE: Since cnic calls register_driver routine rtnl_lock,
2376          * it will have higher precedence than bnx2fc_dev_lock.
2377          * unregister_device() cannot be called with bnx2fc_dev_lock
2378          * held.
2379          */
2380         mutex_lock(&bnx2fc_dev_lock);
2381         list_splice(&adapter_list, &to_be_deleted);
2382         INIT_LIST_HEAD(&adapter_list);
2383         adapter_count = 0;
2384         mutex_unlock(&bnx2fc_dev_lock);
2385
2386         /* Unregister with cnic */
2387         list_for_each_entry_safe(hba, next, &to_be_deleted, list) {
2388                 list_del_init(&hba->list);
2389                 printk(KERN_ERR PFX "MOD_EXIT:destroy hba = 0x%p\n",
2390                        hba);
2391                 bnx2fc_ulp_stop(hba);
2392                 /* unregister cnic device */
2393                 if (test_and_clear_bit(BNX2FC_CNIC_REGISTERED,
2394                                        &hba->reg_with_cnic))
2395                         hba->cnic->unregister_device(hba->cnic,
2396                                                          CNIC_ULP_FCOE);
2397                 bnx2fc_hba_destroy(hba);
2398         }
2399         cnic_unregister_driver(CNIC_ULP_FCOE);
2400
2401         /* Destroy global thread */
2402         bg = &bnx2fc_global;
2403         spin_lock_bh(&bg->fcoe_rx_list.lock);
2404         l2_thread = bg->thread;
2405         bg->thread = NULL;
2406         while ((skb = __skb_dequeue(&bg->fcoe_rx_list)) != NULL)
2407                 kfree_skb(skb);
2408
2409         spin_unlock_bh(&bg->fcoe_rx_list.lock);
2410
2411         if (l2_thread)
2412                 kthread_stop(l2_thread);
2413
2414         unregister_hotcpu_notifier(&bnx2fc_cpu_notifier);
2415
2416         /* Destroy per cpu threads */
2417         for_each_online_cpu(cpu) {
2418                 bnx2fc_percpu_thread_destroy(cpu);
2419         }
2420
2421         destroy_workqueue(bnx2fc_wq);
2422         /*
2423          * detach from scsi transport
2424          * must happen after all destroys are done
2425          */
2426         bnx2fc_release_transport();
2427
2428         /* detach from fcoe transport */
2429         fcoe_transport_detach(&bnx2fc_transport);
2430 }
2431
2432 module_init(bnx2fc_mod_init);
2433 module_exit(bnx2fc_mod_exit);
2434
2435 static struct fc_function_template bnx2fc_transport_function = {
2436         .show_host_node_name = 1,
2437         .show_host_port_name = 1,
2438         .show_host_supported_classes = 1,
2439         .show_host_supported_fc4s = 1,
2440         .show_host_active_fc4s = 1,
2441         .show_host_maxframe_size = 1,
2442
2443         .show_host_port_id = 1,
2444         .show_host_supported_speeds = 1,
2445         .get_host_speed = fc_get_host_speed,
2446         .show_host_speed = 1,
2447         .show_host_port_type = 1,
2448         .get_host_port_state = fc_get_host_port_state,
2449         .show_host_port_state = 1,
2450         .show_host_symbolic_name = 1,
2451
2452         .dd_fcrport_size = (sizeof(struct fc_rport_libfc_priv) +
2453                                 sizeof(struct bnx2fc_rport)),
2454         .show_rport_maxframe_size = 1,
2455         .show_rport_supported_classes = 1,
2456
2457         .show_host_fabric_name = 1,
2458         .show_starget_node_name = 1,
2459         .show_starget_port_name = 1,
2460         .show_starget_port_id = 1,
2461         .set_rport_dev_loss_tmo = fc_set_rport_loss_tmo,
2462         .show_rport_dev_loss_tmo = 1,
2463         .get_fc_host_stats = bnx2fc_get_host_stats,
2464
2465         .issue_fc_host_lip = bnx2fc_fcoe_reset,
2466
2467         .terminate_rport_io = fc_rport_terminate_io,
2468
2469         .vport_create = bnx2fc_vport_create,
2470         .vport_delete = bnx2fc_vport_destroy,
2471         .vport_disable = bnx2fc_vport_disable,
2472         .bsg_request = fc_lport_bsg_request,
2473 };
2474
2475 static struct fc_function_template bnx2fc_vport_xport_function = {
2476         .show_host_node_name = 1,
2477         .show_host_port_name = 1,
2478         .show_host_supported_classes = 1,
2479         .show_host_supported_fc4s = 1,
2480         .show_host_active_fc4s = 1,
2481         .show_host_maxframe_size = 1,
2482
2483         .show_host_port_id = 1,
2484         .show_host_supported_speeds = 1,
2485         .get_host_speed = fc_get_host_speed,
2486         .show_host_speed = 1,
2487         .show_host_port_type = 1,
2488         .get_host_port_state = fc_get_host_port_state,
2489         .show_host_port_state = 1,
2490         .show_host_symbolic_name = 1,
2491
2492         .dd_fcrport_size = (sizeof(struct fc_rport_libfc_priv) +
2493                                 sizeof(struct bnx2fc_rport)),
2494         .show_rport_maxframe_size = 1,
2495         .show_rport_supported_classes = 1,
2496
2497         .show_host_fabric_name = 1,
2498         .show_starget_node_name = 1,
2499         .show_starget_port_name = 1,
2500         .show_starget_port_id = 1,
2501         .set_rport_dev_loss_tmo = fc_set_rport_loss_tmo,
2502         .show_rport_dev_loss_tmo = 1,
2503         .get_fc_host_stats = fc_get_host_stats,
2504         .issue_fc_host_lip = bnx2fc_fcoe_reset,
2505         .terminate_rport_io = fc_rport_terminate_io,
2506         .bsg_request = fc_lport_bsg_request,
2507 };
2508
2509 /**
2510  * scsi_host_template structure used while registering with SCSI-ml
2511  */
2512 static struct scsi_host_template bnx2fc_shost_template = {
2513         .module                 = THIS_MODULE,
2514         .name                   = "Broadcom Offload FCoE Initiator",
2515         .queuecommand           = bnx2fc_queuecommand,
2516         .eh_abort_handler       = bnx2fc_eh_abort,        /* abts */
2517         .eh_device_reset_handler = bnx2fc_eh_device_reset, /* lun reset */
2518         .eh_target_reset_handler = bnx2fc_eh_target_reset, /* tgt reset */
2519         .eh_host_reset_handler  = fc_eh_host_reset,
2520         .slave_alloc            = fc_slave_alloc,
2521         .change_queue_depth     = fc_change_queue_depth,
2522         .change_queue_type      = fc_change_queue_type,
2523         .this_id                = -1,
2524         .cmd_per_lun            = 3,
2525         .can_queue              = BNX2FC_CAN_QUEUE,
2526         .use_clustering         = ENABLE_CLUSTERING,
2527         .sg_tablesize           = BNX2FC_MAX_BDS_PER_CMD,
2528         .max_sectors            = 512,
2529 };
2530
2531 static struct libfc_function_template bnx2fc_libfc_fcn_templ = {
2532         .frame_send             = bnx2fc_xmit,
2533         .elsct_send             = bnx2fc_elsct_send,
2534         .fcp_abort_io           = bnx2fc_abort_io,
2535         .fcp_cleanup            = bnx2fc_cleanup,
2536         .get_lesb               = bnx2fc_get_lesb,
2537         .rport_event_callback   = bnx2fc_rport_event_handler,
2538 };
2539
2540 /**
2541  * bnx2fc_cnic_cb - global template of bnx2fc - cnic driver interface
2542  *                      structure carrying callback function pointers
2543  */
2544 static struct cnic_ulp_ops bnx2fc_cnic_cb = {
2545         .owner                  = THIS_MODULE,
2546         .cnic_init              = bnx2fc_ulp_init,
2547         .cnic_exit              = bnx2fc_ulp_exit,
2548         .cnic_start             = bnx2fc_ulp_start,
2549         .cnic_stop              = bnx2fc_ulp_stop,
2550         .indicate_kcqes         = bnx2fc_indicate_kcqe,
2551         .indicate_netevent      = bnx2fc_indicate_netevent,
2552 };