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Diffstat (limited to 'drivers/scsi/bnx2fc/bnx2fc_fcoe.c')
-rw-r--r--drivers/scsi/bnx2fc/bnx2fc_fcoe.c2535
1 files changed, 2535 insertions, 0 deletions
diff --git a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
new file mode 100644
index 000000000000..e476e8753079
--- /dev/null
+++ b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
@@ -0,0 +1,2535 @@
1/* bnx2fc_fcoe.c: Broadcom NetXtreme II Linux FCoE offload driver.
2 * This file contains the code that interacts with libfc, libfcoe,
3 * cnic modules to create FCoE instances, send/receive non-offloaded
4 * FIP/FCoE packets, listen to link events etc.
5 *
6 * Copyright (c) 2008 - 2010 Broadcom Corporation
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation.
11 *
12 * Written by: Bhanu Prakash Gollapudi (bprakash@broadcom.com)
13 */
14
15#include "bnx2fc.h"
16
17static struct list_head adapter_list;
18static u32 adapter_count;
19static DEFINE_MUTEX(bnx2fc_dev_lock);
20DEFINE_PER_CPU(struct bnx2fc_percpu_s, bnx2fc_percpu);
21
22#define DRV_MODULE_NAME "bnx2fc"
23#define DRV_MODULE_VERSION BNX2FC_VERSION
24#define DRV_MODULE_RELDATE "Jan 25, 2011"
25
26
27static char version[] __devinitdata =
28 "Broadcom NetXtreme II FCoE Driver " DRV_MODULE_NAME \
29 " v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n";
30
31
32MODULE_AUTHOR("Bhanu Prakash Gollapudi <bprakash@broadcom.com>");
33MODULE_DESCRIPTION("Broadcom NetXtreme II BCM57710 FCoE Driver");
34MODULE_LICENSE("GPL");
35MODULE_VERSION(DRV_MODULE_VERSION);
36
37#define BNX2FC_MAX_QUEUE_DEPTH 256
38#define BNX2FC_MIN_QUEUE_DEPTH 32
39#define FCOE_WORD_TO_BYTE 4
40
41static struct scsi_transport_template *bnx2fc_transport_template;
42static struct scsi_transport_template *bnx2fc_vport_xport_template;
43
44struct workqueue_struct *bnx2fc_wq;
45
46/* bnx2fc structure needs only one instance of the fcoe_percpu_s structure.
47 * Here the io threads are per cpu but the l2 thread is just one
48 */
49struct fcoe_percpu_s bnx2fc_global;
50DEFINE_SPINLOCK(bnx2fc_global_lock);
51
52static struct cnic_ulp_ops bnx2fc_cnic_cb;
53static struct libfc_function_template bnx2fc_libfc_fcn_templ;
54static struct scsi_host_template bnx2fc_shost_template;
55static struct fc_function_template bnx2fc_transport_function;
56static struct fc_function_template bnx2fc_vport_xport_function;
57static int bnx2fc_create(struct net_device *netdev, enum fip_state fip_mode);
58static int bnx2fc_destroy(struct net_device *net_device);
59static int bnx2fc_enable(struct net_device *netdev);
60static int bnx2fc_disable(struct net_device *netdev);
61
62static void bnx2fc_recv_frame(struct sk_buff *skb);
63
64static void bnx2fc_start_disc(struct bnx2fc_hba *hba);
65static int bnx2fc_shost_config(struct fc_lport *lport, struct device *dev);
66static int bnx2fc_net_config(struct fc_lport *lp);
67static int bnx2fc_lport_config(struct fc_lport *lport);
68static int bnx2fc_em_config(struct fc_lport *lport);
69static int bnx2fc_bind_adapter_devices(struct bnx2fc_hba *hba);
70static void bnx2fc_unbind_adapter_devices(struct bnx2fc_hba *hba);
71static int bnx2fc_bind_pcidev(struct bnx2fc_hba *hba);
72static void bnx2fc_unbind_pcidev(struct bnx2fc_hba *hba);
73static struct fc_lport *bnx2fc_if_create(struct bnx2fc_hba *hba,
74 struct device *parent, int npiv);
75static void bnx2fc_destroy_work(struct work_struct *work);
76
77static struct bnx2fc_hba *bnx2fc_hba_lookup(struct net_device *phys_dev);
78static struct bnx2fc_hba *bnx2fc_find_hba_for_cnic(struct cnic_dev *cnic);
79
80static int bnx2fc_fw_init(struct bnx2fc_hba *hba);
81static void bnx2fc_fw_destroy(struct bnx2fc_hba *hba);
82
83static void bnx2fc_port_shutdown(struct fc_lport *lport);
84static void bnx2fc_stop(struct bnx2fc_hba *hba);
85static int __init bnx2fc_mod_init(void);
86static void __exit bnx2fc_mod_exit(void);
87
88unsigned int bnx2fc_debug_level;
89module_param_named(debug_logging, bnx2fc_debug_level, int, S_IRUGO|S_IWUSR);
90
91static int bnx2fc_cpu_callback(struct notifier_block *nfb,
92 unsigned long action, void *hcpu);
93/* notification function for CPU hotplug events */
94static struct notifier_block bnx2fc_cpu_notifier = {
95 .notifier_call = bnx2fc_cpu_callback,
96};
97
98static void bnx2fc_clean_rx_queue(struct fc_lport *lp)
99{
100 struct fcoe_percpu_s *bg;
101 struct fcoe_rcv_info *fr;
102 struct sk_buff_head *list;
103 struct sk_buff *skb, *next;
104 struct sk_buff *head;
105
106 bg = &bnx2fc_global;
107 spin_lock_bh(&bg->fcoe_rx_list.lock);
108 list = &bg->fcoe_rx_list;
109 head = list->next;
110 for (skb = head; skb != (struct sk_buff *)list;
111 skb = next) {
112 next = skb->next;
113 fr = fcoe_dev_from_skb(skb);
114 if (fr->fr_dev == lp) {
115 __skb_unlink(skb, list);
116 kfree_skb(skb);
117 }
118 }
119 spin_unlock_bh(&bg->fcoe_rx_list.lock);
120}
121
122int bnx2fc_get_paged_crc_eof(struct sk_buff *skb, int tlen)
123{
124 int rc;
125 spin_lock(&bnx2fc_global_lock);
126 rc = fcoe_get_paged_crc_eof(skb, tlen, &bnx2fc_global);
127 spin_unlock(&bnx2fc_global_lock);
128
129 return rc;
130}
131
132static void bnx2fc_abort_io(struct fc_lport *lport)
133{
134 /*
135 * This function is no-op for bnx2fc, but we do
136 * not want to leave it as NULL either, as libfc
137 * can call the default function which is
138 * fc_fcp_abort_io.
139 */
140}
141
142static void bnx2fc_cleanup(struct fc_lport *lport)
143{
144 struct fcoe_port *port = lport_priv(lport);
145 struct bnx2fc_hba *hba = port->priv;
146 struct bnx2fc_rport *tgt;
147 int i;
148
149 BNX2FC_MISC_DBG("Entered %s\n", __func__);
150 mutex_lock(&hba->hba_mutex);
151 spin_lock_bh(&hba->hba_lock);
152 for (i = 0; i < BNX2FC_NUM_MAX_SESS; i++) {
153 tgt = hba->tgt_ofld_list[i];
154 if (tgt) {
155 /* Cleanup IOs belonging to requested vport */
156 if (tgt->port == port) {
157 spin_unlock_bh(&hba->hba_lock);
158 BNX2FC_TGT_DBG(tgt, "flush/cleanup\n");
159 bnx2fc_flush_active_ios(tgt);
160 spin_lock_bh(&hba->hba_lock);
161 }
162 }
163 }
164 spin_unlock_bh(&hba->hba_lock);
165 mutex_unlock(&hba->hba_mutex);
166}
167
168static int bnx2fc_xmit_l2_frame(struct bnx2fc_rport *tgt,
169 struct fc_frame *fp)
170{
171 struct fc_rport_priv *rdata = tgt->rdata;
172 struct fc_frame_header *fh;
173 int rc = 0;
174
175 fh = fc_frame_header_get(fp);
176 BNX2FC_TGT_DBG(tgt, "Xmit L2 frame rport = 0x%x, oxid = 0x%x, "
177 "r_ctl = 0x%x\n", rdata->ids.port_id,
178 ntohs(fh->fh_ox_id), fh->fh_r_ctl);
179 if ((fh->fh_type == FC_TYPE_ELS) &&
180 (fh->fh_r_ctl == FC_RCTL_ELS_REQ)) {
181
182 switch (fc_frame_payload_op(fp)) {
183 case ELS_ADISC:
184 rc = bnx2fc_send_adisc(tgt, fp);
185 break;
186 case ELS_LOGO:
187 rc = bnx2fc_send_logo(tgt, fp);
188 break;
189 case ELS_RLS:
190 rc = bnx2fc_send_rls(tgt, fp);
191 break;
192 default:
193 break;
194 }
195 } else if ((fh->fh_type == FC_TYPE_BLS) &&
196 (fh->fh_r_ctl == FC_RCTL_BA_ABTS))
197 BNX2FC_TGT_DBG(tgt, "ABTS frame\n");
198 else {
199 BNX2FC_TGT_DBG(tgt, "Send L2 frame type 0x%x "
200 "rctl 0x%x thru non-offload path\n",
201 fh->fh_type, fh->fh_r_ctl);
202 return -ENODEV;
203 }
204 if (rc)
205 return -ENOMEM;
206 else
207 return 0;
208}
209
210/**
211 * bnx2fc_xmit - bnx2fc's FCoE frame transmit function
212 *
213 * @lport: the associated local port
214 * @fp: the fc_frame to be transmitted
215 */
216static int bnx2fc_xmit(struct fc_lport *lport, struct fc_frame *fp)
217{
218 struct ethhdr *eh;
219 struct fcoe_crc_eof *cp;
220 struct sk_buff *skb;
221 struct fc_frame_header *fh;
222 struct bnx2fc_hba *hba;
223 struct fcoe_port *port;
224 struct fcoe_hdr *hp;
225 struct bnx2fc_rport *tgt;
226 struct fcoe_dev_stats *stats;
227 u8 sof, eof;
228 u32 crc;
229 unsigned int hlen, tlen, elen;
230 int wlen, rc = 0;
231
232 port = (struct fcoe_port *)lport_priv(lport);
233 hba = port->priv;
234
235 fh = fc_frame_header_get(fp);
236
237 skb = fp_skb(fp);
238 if (!lport->link_up) {
239 BNX2FC_HBA_DBG(lport, "bnx2fc_xmit link down\n");
240 kfree_skb(skb);
241 return 0;
242 }
243
244 if (unlikely(fh->fh_r_ctl == FC_RCTL_ELS_REQ)) {
245 if (!hba->ctlr.sel_fcf) {
246 BNX2FC_HBA_DBG(lport, "FCF not selected yet!\n");
247 kfree_skb(skb);
248 return -EINVAL;
249 }
250 if (fcoe_ctlr_els_send(&hba->ctlr, lport, skb))
251 return 0;
252 }
253
254 sof = fr_sof(fp);
255 eof = fr_eof(fp);
256
257 /*
258 * Snoop the frame header to check if the frame is for
259 * an offloaded session
260 */
261 /*
262 * tgt_ofld_list access is synchronized using
263 * both hba mutex and hba lock. Atleast hba mutex or
264 * hba lock needs to be held for read access.
265 */
266
267 spin_lock_bh(&hba->hba_lock);
268 tgt = bnx2fc_tgt_lookup(port, ntoh24(fh->fh_d_id));
269 if (tgt && (test_bit(BNX2FC_FLAG_SESSION_READY, &tgt->flags))) {
270 /* This frame is for offloaded session */
271 BNX2FC_HBA_DBG(lport, "xmit: Frame is for offloaded session "
272 "port_id = 0x%x\n", ntoh24(fh->fh_d_id));
273 spin_unlock_bh(&hba->hba_lock);
274 rc = bnx2fc_xmit_l2_frame(tgt, fp);
275 if (rc != -ENODEV) {
276 kfree_skb(skb);
277 return rc;
278 }
279 } else {
280 spin_unlock_bh(&hba->hba_lock);
281 }
282
283 elen = sizeof(struct ethhdr);
284 hlen = sizeof(struct fcoe_hdr);
285 tlen = sizeof(struct fcoe_crc_eof);
286 wlen = (skb->len - tlen + sizeof(crc)) / FCOE_WORD_TO_BYTE;
287
288 skb->ip_summed = CHECKSUM_NONE;
289 crc = fcoe_fc_crc(fp);
290
291 /* copy port crc and eof to the skb buff */
292 if (skb_is_nonlinear(skb)) {
293 skb_frag_t *frag;
294 if (bnx2fc_get_paged_crc_eof(skb, tlen)) {
295 kfree_skb(skb);
296 return -ENOMEM;
297 }
298 frag = &skb_shinfo(skb)->frags[skb_shinfo(skb)->nr_frags - 1];
299 cp = kmap_atomic(frag->page, KM_SKB_DATA_SOFTIRQ)
300 + frag->page_offset;
301 } else {
302 cp = (struct fcoe_crc_eof *)skb_put(skb, tlen);
303 }
304
305 memset(cp, 0, sizeof(*cp));
306 cp->fcoe_eof = eof;
307 cp->fcoe_crc32 = cpu_to_le32(~crc);
308 if (skb_is_nonlinear(skb)) {
309 kunmap_atomic(cp, KM_SKB_DATA_SOFTIRQ);
310 cp = NULL;
311 }
312
313 /* adjust skb network/transport offsets to match mac/fcoe/port */
314 skb_push(skb, elen + hlen);
315 skb_reset_mac_header(skb);
316 skb_reset_network_header(skb);
317 skb->mac_len = elen;
318 skb->protocol = htons(ETH_P_FCOE);
319 skb->dev = hba->netdev;
320
321 /* fill up mac and fcoe headers */
322 eh = eth_hdr(skb);
323 eh->h_proto = htons(ETH_P_FCOE);
324 if (hba->ctlr.map_dest)
325 fc_fcoe_set_mac(eh->h_dest, fh->fh_d_id);
326 else
327 /* insert GW address */
328 memcpy(eh->h_dest, hba->ctlr.dest_addr, ETH_ALEN);
329
330 if (unlikely(hba->ctlr.flogi_oxid != FC_XID_UNKNOWN))
331 memcpy(eh->h_source, hba->ctlr.ctl_src_addr, ETH_ALEN);
332 else
333 memcpy(eh->h_source, port->data_src_addr, ETH_ALEN);
334
335 hp = (struct fcoe_hdr *)(eh + 1);
336 memset(hp, 0, sizeof(*hp));
337 if (FC_FCOE_VER)
338 FC_FCOE_ENCAPS_VER(hp, FC_FCOE_VER);
339 hp->fcoe_sof = sof;
340
341 /* fcoe lso, mss is in max_payload which is non-zero for FCP data */
342 if (lport->seq_offload && fr_max_payload(fp)) {
343 skb_shinfo(skb)->gso_type = SKB_GSO_FCOE;
344 skb_shinfo(skb)->gso_size = fr_max_payload(fp);
345 } else {
346 skb_shinfo(skb)->gso_type = 0;
347 skb_shinfo(skb)->gso_size = 0;
348 }
349
350 /*update tx stats */
351 stats = per_cpu_ptr(lport->dev_stats, get_cpu());
352 stats->TxFrames++;
353 stats->TxWords += wlen;
354 put_cpu();
355
356 /* send down to lld */
357 fr_dev(fp) = lport;
358 if (port->fcoe_pending_queue.qlen)
359 fcoe_check_wait_queue(lport, skb);
360 else if (fcoe_start_io(skb))
361 fcoe_check_wait_queue(lport, skb);
362
363 return 0;
364}
365
366/**
367 * bnx2fc_rcv - This is bnx2fc's receive function called by NET_RX_SOFTIRQ
368 *
369 * @skb: the receive socket buffer
370 * @dev: associated net device
371 * @ptype: context
372 * @olddev: last device
373 *
374 * This function receives the packet and builds FC frame and passes it up
375 */
376static int bnx2fc_rcv(struct sk_buff *skb, struct net_device *dev,
377 struct packet_type *ptype, struct net_device *olddev)
378{
379 struct fc_lport *lport;
380 struct bnx2fc_hba *hba;
381 struct fc_frame_header *fh;
382 struct fcoe_rcv_info *fr;
383 struct fcoe_percpu_s *bg;
384 unsigned short oxid;
385
386 hba = container_of(ptype, struct bnx2fc_hba, fcoe_packet_type);
387 lport = hba->ctlr.lp;
388
389 if (unlikely(lport == NULL)) {
390 printk(KERN_ALERT PFX "bnx2fc_rcv: lport is NULL\n");
391 goto err;
392 }
393
394 if (unlikely(eth_hdr(skb)->h_proto != htons(ETH_P_FCOE))) {
395 printk(KERN_ALERT PFX "bnx2fc_rcv: Wrong FC type frame\n");
396 goto err;
397 }
398
399 /*
400 * Check for minimum frame length, and make sure required FCoE
401 * and FC headers are pulled into the linear data area.
402 */
403 if (unlikely((skb->len < FCOE_MIN_FRAME) ||
404 !pskb_may_pull(skb, FCOE_HEADER_LEN)))
405 goto err;
406
407 skb_set_transport_header(skb, sizeof(struct fcoe_hdr));
408 fh = (struct fc_frame_header *) skb_transport_header(skb);
409
410 oxid = ntohs(fh->fh_ox_id);
411
412 fr = fcoe_dev_from_skb(skb);
413 fr->fr_dev = lport;
414 fr->ptype = ptype;
415
416 bg = &bnx2fc_global;
417 spin_lock_bh(&bg->fcoe_rx_list.lock);
418
419 __skb_queue_tail(&bg->fcoe_rx_list, skb);
420 if (bg->fcoe_rx_list.qlen == 1)
421 wake_up_process(bg->thread);
422
423 spin_unlock_bh(&bg->fcoe_rx_list.lock);
424
425 return 0;
426err:
427 kfree_skb(skb);
428 return -1;
429}
430
431static int bnx2fc_l2_rcv_thread(void *arg)
432{
433 struct fcoe_percpu_s *bg = arg;
434 struct sk_buff *skb;
435
436 set_user_nice(current, -20);
437 set_current_state(TASK_INTERRUPTIBLE);
438 while (!kthread_should_stop()) {
439 schedule();
440 set_current_state(TASK_RUNNING);
441 spin_lock_bh(&bg->fcoe_rx_list.lock);
442 while ((skb = __skb_dequeue(&bg->fcoe_rx_list)) != NULL) {
443 spin_unlock_bh(&bg->fcoe_rx_list.lock);
444 bnx2fc_recv_frame(skb);
445 spin_lock_bh(&bg->fcoe_rx_list.lock);
446 }
447 spin_unlock_bh(&bg->fcoe_rx_list.lock);
448 set_current_state(TASK_INTERRUPTIBLE);
449 }
450 set_current_state(TASK_RUNNING);
451 return 0;
452}
453
454
455static void bnx2fc_recv_frame(struct sk_buff *skb)
456{
457 u32 fr_len;
458 struct fc_lport *lport;
459 struct fcoe_rcv_info *fr;
460 struct fcoe_dev_stats *stats;
461 struct fc_frame_header *fh;
462 struct fcoe_crc_eof crc_eof;
463 struct fc_frame *fp;
464 struct fc_lport *vn_port;
465 struct fcoe_port *port;
466 u8 *mac = NULL;
467 u8 *dest_mac = NULL;
468 struct fcoe_hdr *hp;
469
470 fr = fcoe_dev_from_skb(skb);
471 lport = fr->fr_dev;
472 if (unlikely(lport == NULL)) {
473 printk(KERN_ALERT PFX "Invalid lport struct\n");
474 kfree_skb(skb);
475 return;
476 }
477
478 if (skb_is_nonlinear(skb))
479 skb_linearize(skb);
480 mac = eth_hdr(skb)->h_source;
481 dest_mac = eth_hdr(skb)->h_dest;
482
483 /* Pull the header */
484 hp = (struct fcoe_hdr *) skb_network_header(skb);
485 fh = (struct fc_frame_header *) skb_transport_header(skb);
486 skb_pull(skb, sizeof(struct fcoe_hdr));
487 fr_len = skb->len - sizeof(struct fcoe_crc_eof);
488
489 stats = per_cpu_ptr(lport->dev_stats, get_cpu());
490 stats->RxFrames++;
491 stats->RxWords += fr_len / FCOE_WORD_TO_BYTE;
492
493 fp = (struct fc_frame *)skb;
494 fc_frame_init(fp);
495 fr_dev(fp) = lport;
496 fr_sof(fp) = hp->fcoe_sof;
497 if (skb_copy_bits(skb, fr_len, &crc_eof, sizeof(crc_eof))) {
498 put_cpu();
499 kfree_skb(skb);
500 return;
501 }
502 fr_eof(fp) = crc_eof.fcoe_eof;
503 fr_crc(fp) = crc_eof.fcoe_crc32;
504 if (pskb_trim(skb, fr_len)) {
505 put_cpu();
506 kfree_skb(skb);
507 return;
508 }
509
510 fh = fc_frame_header_get(fp);
511
512 vn_port = fc_vport_id_lookup(lport, ntoh24(fh->fh_d_id));
513 if (vn_port) {
514 port = lport_priv(vn_port);
515 if (compare_ether_addr(port->data_src_addr, dest_mac)
516 != 0) {
517 BNX2FC_HBA_DBG(lport, "fpma mismatch\n");
518 put_cpu();
519 kfree_skb(skb);
520 return;
521 }
522 }
523 if (fh->fh_r_ctl == FC_RCTL_DD_SOL_DATA &&
524 fh->fh_type == FC_TYPE_FCP) {
525 /* Drop FCP data. We dont this in L2 path */
526 put_cpu();
527 kfree_skb(skb);
528 return;
529 }
530 if (fh->fh_r_ctl == FC_RCTL_ELS_REQ &&
531 fh->fh_type == FC_TYPE_ELS) {
532 switch (fc_frame_payload_op(fp)) {
533 case ELS_LOGO:
534 if (ntoh24(fh->fh_s_id) == FC_FID_FLOGI) {
535 /* drop non-FIP LOGO */
536 put_cpu();
537 kfree_skb(skb);
538 return;
539 }
540 break;
541 }
542 }
543 if (le32_to_cpu(fr_crc(fp)) !=
544 ~crc32(~0, skb->data, fr_len)) {
545 if (stats->InvalidCRCCount < 5)
546 printk(KERN_WARNING PFX "dropping frame with "
547 "CRC error\n");
548 stats->InvalidCRCCount++;
549 put_cpu();
550 kfree_skb(skb);
551 return;
552 }
553 put_cpu();
554 fc_exch_recv(lport, fp);
555}
556
557/**
558 * bnx2fc_percpu_io_thread - thread per cpu for ios
559 *
560 * @arg: ptr to bnx2fc_percpu_info structure
561 */
562int bnx2fc_percpu_io_thread(void *arg)
563{
564 struct bnx2fc_percpu_s *p = arg;
565 struct bnx2fc_work *work, *tmp;
566 LIST_HEAD(work_list);
567
568 set_user_nice(current, -20);
569 set_current_state(TASK_INTERRUPTIBLE);
570 while (!kthread_should_stop()) {
571 schedule();
572 set_current_state(TASK_RUNNING);
573 spin_lock_bh(&p->fp_work_lock);
574 while (!list_empty(&p->work_list)) {
575 list_splice_init(&p->work_list, &work_list);
576 spin_unlock_bh(&p->fp_work_lock);
577
578 list_for_each_entry_safe(work, tmp, &work_list, list) {
579 list_del_init(&work->list);
580 bnx2fc_process_cq_compl(work->tgt, work->wqe);
581 kfree(work);
582 }
583
584 spin_lock_bh(&p->fp_work_lock);
585 }
586 spin_unlock_bh(&p->fp_work_lock);
587 set_current_state(TASK_INTERRUPTIBLE);
588 }
589 set_current_state(TASK_RUNNING);
590
591 return 0;
592}
593
594static struct fc_host_statistics *bnx2fc_get_host_stats(struct Scsi_Host *shost)
595{
596 struct fc_host_statistics *bnx2fc_stats;
597 struct fc_lport *lport = shost_priv(shost);
598 struct fcoe_port *port = lport_priv(lport);
599 struct bnx2fc_hba *hba = port->priv;
600 struct fcoe_statistics_params *fw_stats;
601 int rc = 0;
602
603 fw_stats = (struct fcoe_statistics_params *)hba->stats_buffer;
604 if (!fw_stats)
605 return NULL;
606
607 bnx2fc_stats = fc_get_host_stats(shost);
608
609 init_completion(&hba->stat_req_done);
610 if (bnx2fc_send_stat_req(hba))
611 return bnx2fc_stats;
612 rc = wait_for_completion_timeout(&hba->stat_req_done, (2 * HZ));
613 if (!rc) {
614 BNX2FC_HBA_DBG(lport, "FW stat req timed out\n");
615 return bnx2fc_stats;
616 }
617 bnx2fc_stats->invalid_crc_count += fw_stats->rx_stat1.fc_crc_cnt;
618 bnx2fc_stats->tx_frames += fw_stats->tx_stat.fcoe_tx_pkt_cnt;
619 bnx2fc_stats->tx_words += (fw_stats->tx_stat.fcoe_tx_byte_cnt) / 4;
620 bnx2fc_stats->rx_frames += fw_stats->rx_stat0.fcoe_rx_pkt_cnt;
621 bnx2fc_stats->rx_words += (fw_stats->rx_stat0.fcoe_rx_byte_cnt) / 4;
622
623 bnx2fc_stats->dumped_frames = 0;
624 bnx2fc_stats->lip_count = 0;
625 bnx2fc_stats->nos_count = 0;
626 bnx2fc_stats->loss_of_sync_count = 0;
627 bnx2fc_stats->loss_of_signal_count = 0;
628 bnx2fc_stats->prim_seq_protocol_err_count = 0;
629
630 return bnx2fc_stats;
631}
632
633static int bnx2fc_shost_config(struct fc_lport *lport, struct device *dev)
634{
635 struct fcoe_port *port = lport_priv(lport);
636 struct bnx2fc_hba *hba = port->priv;
637 struct Scsi_Host *shost = lport->host;
638 int rc = 0;
639
640 shost->max_cmd_len = BNX2FC_MAX_CMD_LEN;
641 shost->max_lun = BNX2FC_MAX_LUN;
642 shost->max_id = BNX2FC_MAX_FCP_TGT;
643 shost->max_channel = 0;
644 if (lport->vport)
645 shost->transportt = bnx2fc_vport_xport_template;
646 else
647 shost->transportt = bnx2fc_transport_template;
648
649 /* Add the new host to SCSI-ml */
650 rc = scsi_add_host(lport->host, dev);
651 if (rc) {
652 printk(KERN_ERR PFX "Error on scsi_add_host\n");
653 return rc;
654 }
655 if (!lport->vport)
656 fc_host_max_npiv_vports(lport->host) = USHRT_MAX;
657 sprintf(fc_host_symbolic_name(lport->host), "%s v%s over %s",
658 BNX2FC_NAME, BNX2FC_VERSION,
659 hba->netdev->name);
660
661 return 0;
662}
663
664static int bnx2fc_mfs_update(struct fc_lport *lport)
665{
666 struct fcoe_port *port = lport_priv(lport);
667 struct bnx2fc_hba *hba = port->priv;
668 struct net_device *netdev = hba->netdev;
669 u32 mfs;
670 u32 max_mfs;
671
672 mfs = netdev->mtu - (sizeof(struct fcoe_hdr) +
673 sizeof(struct fcoe_crc_eof));
674 max_mfs = BNX2FC_MAX_PAYLOAD + sizeof(struct fc_frame_header);
675 BNX2FC_HBA_DBG(lport, "mfs = %d, max_mfs = %d\n", mfs, max_mfs);
676 if (mfs > max_mfs)
677 mfs = max_mfs;
678
679 /* Adjust mfs to be a multiple of 256 bytes */
680 mfs = (((mfs - sizeof(struct fc_frame_header)) / BNX2FC_MIN_PAYLOAD) *
681 BNX2FC_MIN_PAYLOAD);
682 mfs = mfs + sizeof(struct fc_frame_header);
683
684 BNX2FC_HBA_DBG(lport, "Set MFS = %d\n", mfs);
685 if (fc_set_mfs(lport, mfs))
686 return -EINVAL;
687 return 0;
688}
689static void bnx2fc_link_speed_update(struct fc_lport *lport)
690{
691 struct fcoe_port *port = lport_priv(lport);
692 struct bnx2fc_hba *hba = port->priv;
693 struct net_device *netdev = hba->netdev;
694 struct ethtool_cmd ecmd = { ETHTOOL_GSET };
695
696 if (!dev_ethtool_get_settings(netdev, &ecmd)) {
697 lport->link_supported_speeds &=
698 ~(FC_PORTSPEED_1GBIT | FC_PORTSPEED_10GBIT);
699 if (ecmd.supported & (SUPPORTED_1000baseT_Half |
700 SUPPORTED_1000baseT_Full))
701 lport->link_supported_speeds |= FC_PORTSPEED_1GBIT;
702 if (ecmd.supported & SUPPORTED_10000baseT_Full)
703 lport->link_supported_speeds |= FC_PORTSPEED_10GBIT;
704
705 if (ecmd.speed == SPEED_1000)
706 lport->link_speed = FC_PORTSPEED_1GBIT;
707 if (ecmd.speed == SPEED_10000)
708 lport->link_speed = FC_PORTSPEED_10GBIT;
709 }
710 return;
711}
712static int bnx2fc_link_ok(struct fc_lport *lport)
713{
714 struct fcoe_port *port = lport_priv(lport);
715 struct bnx2fc_hba *hba = port->priv;
716 struct net_device *dev = hba->phys_dev;
717 int rc = 0;
718
719 if ((dev->flags & IFF_UP) && netif_carrier_ok(dev))
720 clear_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
721 else {
722 set_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
723 rc = -1;
724 }
725 return rc;
726}
727
728/**
729 * bnx2fc_get_link_state - get network link state
730 *
731 * @hba: adapter instance pointer
732 *
733 * updates adapter structure flag based on netdev state
734 */
735void bnx2fc_get_link_state(struct bnx2fc_hba *hba)
736{
737 if (test_bit(__LINK_STATE_NOCARRIER, &hba->netdev->state))
738 set_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
739 else
740 clear_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
741}
742
743static int bnx2fc_net_config(struct fc_lport *lport)
744{
745 struct bnx2fc_hba *hba;
746 struct fcoe_port *port;
747 u64 wwnn, wwpn;
748
749 port = lport_priv(lport);
750 hba = port->priv;
751
752 /* require support for get_pauseparam ethtool op. */
753 if (!hba->phys_dev->ethtool_ops ||
754 !hba->phys_dev->ethtool_ops->get_pauseparam)
755 return -EOPNOTSUPP;
756
757 if (bnx2fc_mfs_update(lport))
758 return -EINVAL;
759
760 skb_queue_head_init(&port->fcoe_pending_queue);
761 port->fcoe_pending_queue_active = 0;
762 setup_timer(&port->timer, fcoe_queue_timer, (unsigned long) lport);
763
764 bnx2fc_link_speed_update(lport);
765
766 if (!lport->vport) {
767 wwnn = fcoe_wwn_from_mac(hba->ctlr.ctl_src_addr, 1, 0);
768 BNX2FC_HBA_DBG(lport, "WWNN = 0x%llx\n", wwnn);
769 fc_set_wwnn(lport, wwnn);
770
771 wwpn = fcoe_wwn_from_mac(hba->ctlr.ctl_src_addr, 2, 0);
772 BNX2FC_HBA_DBG(lport, "WWPN = 0x%llx\n", wwpn);
773 fc_set_wwpn(lport, wwpn);
774 }
775
776 return 0;
777}
778
779static void bnx2fc_destroy_timer(unsigned long data)
780{
781 struct bnx2fc_hba *hba = (struct bnx2fc_hba *)data;
782
783 BNX2FC_HBA_DBG(hba->ctlr.lp, "ERROR:bnx2fc_destroy_timer - "
784 "Destroy compl not received!!\n");
785 hba->flags |= BNX2FC_FLAG_DESTROY_CMPL;
786 wake_up_interruptible(&hba->destroy_wait);
787}
788
789/**
790 * bnx2fc_indicate_netevent - Generic netdev event handler
791 *
792 * @context: adapter structure pointer
793 * @event: event type
794 *
795 * Handles NETDEV_UP, NETDEV_DOWN, NETDEV_GOING_DOWN,NETDEV_CHANGE and
796 * NETDEV_CHANGE_MTU events
797 */
798static void bnx2fc_indicate_netevent(void *context, unsigned long event)
799{
800 struct bnx2fc_hba *hba = (struct bnx2fc_hba *)context;
801 struct fc_lport *lport = hba->ctlr.lp;
802 struct fc_lport *vport;
803 u32 link_possible = 1;
804
805 if (!test_bit(BNX2FC_CREATE_DONE, &hba->init_done)) {
806 BNX2FC_MISC_DBG("driver not ready. event=%s %ld\n",
807 hba->netdev->name, event);
808 return;
809 }
810
811 /*
812 * ASSUMPTION:
813 * indicate_netevent cannot be called from cnic unless bnx2fc
814 * does register_device
815 */
816 BUG_ON(!lport);
817
818 BNX2FC_HBA_DBG(lport, "enter netevent handler - event=%s %ld\n",
819 hba->netdev->name, event);
820
821 switch (event) {
822 case NETDEV_UP:
823 BNX2FC_HBA_DBG(lport, "Port up, adapter_state = %ld\n",
824 hba->adapter_state);
825 if (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state))
826 printk(KERN_ERR "indicate_netevent: "\
827 "adapter is not UP!!\n");
828 /* fall thru to update mfs if MTU has changed */
829 case NETDEV_CHANGEMTU:
830 BNX2FC_HBA_DBG(lport, "NETDEV_CHANGEMTU event\n");
831 bnx2fc_mfs_update(lport);
832 mutex_lock(&lport->lp_mutex);
833 list_for_each_entry(vport, &lport->vports, list)
834 bnx2fc_mfs_update(vport);
835 mutex_unlock(&lport->lp_mutex);
836 break;
837
838 case NETDEV_DOWN:
839 BNX2FC_HBA_DBG(lport, "Port down\n");
840 clear_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state);
841 clear_bit(ADAPTER_STATE_UP, &hba->adapter_state);
842 link_possible = 0;
843 break;
844
845 case NETDEV_GOING_DOWN:
846 BNX2FC_HBA_DBG(lport, "Port going down\n");
847 set_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state);
848 link_possible = 0;
849 break;
850
851 case NETDEV_CHANGE:
852 BNX2FC_HBA_DBG(lport, "NETDEV_CHANGE\n");
853 break;
854
855 default:
856 printk(KERN_ERR PFX "Unkonwn netevent %ld", event);
857 return;
858 }
859
860 bnx2fc_link_speed_update(lport);
861
862 if (link_possible && !bnx2fc_link_ok(lport)) {
863 printk(KERN_ERR "indicate_netevent: call ctlr_link_up\n");
864 fcoe_ctlr_link_up(&hba->ctlr);
865 } else {
866 printk(KERN_ERR "indicate_netevent: call ctlr_link_down\n");
867 if (fcoe_ctlr_link_down(&hba->ctlr)) {
868 clear_bit(ADAPTER_STATE_READY, &hba->adapter_state);
869 mutex_lock(&lport->lp_mutex);
870 list_for_each_entry(vport, &lport->vports, list)
871 fc_host_port_type(vport->host) =
872 FC_PORTTYPE_UNKNOWN;
873 mutex_unlock(&lport->lp_mutex);
874 fc_host_port_type(lport->host) = FC_PORTTYPE_UNKNOWN;
875 per_cpu_ptr(lport->dev_stats,
876 get_cpu())->LinkFailureCount++;
877 put_cpu();
878 fcoe_clean_pending_queue(lport);
879
880 init_waitqueue_head(&hba->shutdown_wait);
881 BNX2FC_HBA_DBG(lport, "indicate_netevent "
882 "num_ofld_sess = %d\n",
883 hba->num_ofld_sess);
884 hba->wait_for_link_down = 1;
885 BNX2FC_HBA_DBG(lport, "waiting for uploads to "
886 "compl proc = %s\n",
887 current->comm);
888 wait_event_interruptible(hba->shutdown_wait,
889 (hba->num_ofld_sess == 0));
890 BNX2FC_HBA_DBG(lport, "wakeup - num_ofld_sess = %d\n",
891 hba->num_ofld_sess);
892 hba->wait_for_link_down = 0;
893
894 if (signal_pending(current))
895 flush_signals(current);
896 }
897 }
898}
899
900static int bnx2fc_libfc_config(struct fc_lport *lport)
901{
902
903 /* Set the function pointers set by bnx2fc driver */
904 memcpy(&lport->tt, &bnx2fc_libfc_fcn_templ,
905 sizeof(struct libfc_function_template));
906 fc_elsct_init(lport);
907 fc_exch_init(lport);
908 fc_rport_init(lport);
909 fc_disc_init(lport);
910 return 0;
911}
912
913static int bnx2fc_em_config(struct fc_lport *lport)
914{
915 struct fcoe_port *port = lport_priv(lport);
916 struct bnx2fc_hba *hba = port->priv;
917
918 if (!fc_exch_mgr_alloc(lport, FC_CLASS_3, FCOE_MIN_XID,
919 FCOE_MAX_XID, NULL)) {
920 printk(KERN_ERR PFX "em_config:fc_exch_mgr_alloc failed\n");
921 return -ENOMEM;
922 }
923
924 hba->cmd_mgr = bnx2fc_cmd_mgr_alloc(hba, BNX2FC_MIN_XID,
925 BNX2FC_MAX_XID);
926
927 if (!hba->cmd_mgr) {
928 printk(KERN_ERR PFX "em_config:bnx2fc_cmd_mgr_alloc failed\n");
929 fc_exch_mgr_free(lport);
930 return -ENOMEM;
931 }
932 return 0;
933}
934
935static int bnx2fc_lport_config(struct fc_lport *lport)
936{
937 lport->link_up = 0;
938 lport->qfull = 0;
939 lport->max_retry_count = 3;
940 lport->max_rport_retry_count = 3;
941 lport->e_d_tov = 2 * 1000;
942 lport->r_a_tov = 10 * 1000;
943
944 /* REVISIT: enable when supporting tape devices
945 lport->service_params = (FCP_SPPF_INIT_FCN | FCP_SPPF_RD_XRDY_DIS |
946 FCP_SPPF_RETRY | FCP_SPPF_CONF_COMPL);
947 */
948 lport->service_params = (FCP_SPPF_INIT_FCN | FCP_SPPF_RD_XRDY_DIS);
949 lport->does_npiv = 1;
950
951 memset(&lport->rnid_gen, 0, sizeof(struct fc_els_rnid_gen));
952 lport->rnid_gen.rnid_atype = BNX2FC_RNID_HBA;
953
954 /* alloc stats structure */
955 if (fc_lport_init_stats(lport))
956 return -ENOMEM;
957
958 /* Finish fc_lport configuration */
959 fc_lport_config(lport);
960
961 return 0;
962}
963
964/**
965 * bnx2fc_fip_recv - handle a received FIP frame.
966 *
967 * @skb: the received skb
968 * @dev: associated &net_device
969 * @ptype: the &packet_type structure which was used to register this handler.
970 * @orig_dev: original receive &net_device, in case @ dev is a bond.
971 *
972 * Returns: 0 for success
973 */
974static int bnx2fc_fip_recv(struct sk_buff *skb, struct net_device *dev,
975 struct packet_type *ptype,
976 struct net_device *orig_dev)
977{
978 struct bnx2fc_hba *hba;
979 hba = container_of(ptype, struct bnx2fc_hba, fip_packet_type);
980 fcoe_ctlr_recv(&hba->ctlr, skb);
981 return 0;
982}
983
984/**
985 * bnx2fc_update_src_mac - Update Ethernet MAC filters.
986 *
987 * @fip: FCoE controller.
988 * @old: Unicast MAC address to delete if the MAC is non-zero.
989 * @new: Unicast MAC address to add.
990 *
991 * Remove any previously-set unicast MAC filter.
992 * Add secondary FCoE MAC address filter for our OUI.
993 */
994static void bnx2fc_update_src_mac(struct fc_lport *lport, u8 *addr)
995{
996 struct fcoe_port *port = lport_priv(lport);
997
998 memcpy(port->data_src_addr, addr, ETH_ALEN);
999}
1000
1001/**
1002 * bnx2fc_get_src_mac - return the ethernet source address for an lport
1003 *
1004 * @lport: libfc port
1005 */
1006static u8 *bnx2fc_get_src_mac(struct fc_lport *lport)
1007{
1008 struct fcoe_port *port;
1009
1010 port = (struct fcoe_port *)lport_priv(lport);
1011 return port->data_src_addr;
1012}
1013
1014/**
1015 * bnx2fc_fip_send - send an Ethernet-encapsulated FIP frame.
1016 *
1017 * @fip: FCoE controller.
1018 * @skb: FIP Packet.
1019 */
1020static void bnx2fc_fip_send(struct fcoe_ctlr *fip, struct sk_buff *skb)
1021{
1022 skb->dev = bnx2fc_from_ctlr(fip)->netdev;
1023 dev_queue_xmit(skb);
1024}
1025
1026static int bnx2fc_vport_create(struct fc_vport *vport, bool disabled)
1027{
1028 struct Scsi_Host *shost = vport_to_shost(vport);
1029 struct fc_lport *n_port = shost_priv(shost);
1030 struct fcoe_port *port = lport_priv(n_port);
1031 struct bnx2fc_hba *hba = port->priv;
1032 struct net_device *netdev = hba->netdev;
1033 struct fc_lport *vn_port;
1034
1035 if (!test_bit(BNX2FC_FW_INIT_DONE, &hba->init_done)) {
1036 printk(KERN_ERR PFX "vn ports cannot be created on"
1037 "this hba\n");
1038 return -EIO;
1039 }
1040 mutex_lock(&bnx2fc_dev_lock);
1041 vn_port = bnx2fc_if_create(hba, &vport->dev, 1);
1042 mutex_unlock(&bnx2fc_dev_lock);
1043
1044 if (IS_ERR(vn_port)) {
1045 printk(KERN_ERR PFX "bnx2fc_vport_create (%s) failed\n",
1046 netdev->name);
1047 return -EIO;
1048 }
1049
1050 if (disabled) {
1051 fc_vport_set_state(vport, FC_VPORT_DISABLED);
1052 } else {
1053 vn_port->boot_time = jiffies;
1054 fc_lport_init(vn_port);
1055 fc_fabric_login(vn_port);
1056 fc_vport_setlink(vn_port);
1057 }
1058 return 0;
1059}
1060
1061static int bnx2fc_vport_destroy(struct fc_vport *vport)
1062{
1063 struct Scsi_Host *shost = vport_to_shost(vport);
1064 struct fc_lport *n_port = shost_priv(shost);
1065 struct fc_lport *vn_port = vport->dd_data;
1066 struct fcoe_port *port = lport_priv(vn_port);
1067
1068 mutex_lock(&n_port->lp_mutex);
1069 list_del(&vn_port->list);
1070 mutex_unlock(&n_port->lp_mutex);
1071 queue_work(bnx2fc_wq, &port->destroy_work);
1072 return 0;
1073}
1074
1075static int bnx2fc_vport_disable(struct fc_vport *vport, bool disable)
1076{
1077 struct fc_lport *lport = vport->dd_data;
1078
1079 if (disable) {
1080 fc_vport_set_state(vport, FC_VPORT_DISABLED);
1081 fc_fabric_logoff(lport);
1082 } else {
1083 lport->boot_time = jiffies;
1084 fc_fabric_login(lport);
1085 fc_vport_setlink(lport);
1086 }
1087 return 0;
1088}
1089
1090
1091static int bnx2fc_netdev_setup(struct bnx2fc_hba *hba)
1092{
1093 struct net_device *netdev = hba->netdev;
1094 struct net_device *physdev = hba->phys_dev;
1095 struct netdev_hw_addr *ha;
1096 int sel_san_mac = 0;
1097
1098 /* Do not support for bonding device */
1099 if ((netdev->priv_flags & IFF_MASTER_ALB) ||
1100 (netdev->priv_flags & IFF_SLAVE_INACTIVE) ||
1101 (netdev->priv_flags & IFF_MASTER_8023AD)) {
1102 return -EOPNOTSUPP;
1103 }
1104
1105 /* setup Source MAC Address */
1106 rcu_read_lock();
1107 for_each_dev_addr(physdev, ha) {
1108 BNX2FC_MISC_DBG("net_config: ha->type = %d, fip_mac = ",
1109 ha->type);
1110 printk(KERN_INFO "%2x:%2x:%2x:%2x:%2x:%2x\n", ha->addr[0],
1111 ha->addr[1], ha->addr[2], ha->addr[3],
1112 ha->addr[4], ha->addr[5]);
1113
1114 if ((ha->type == NETDEV_HW_ADDR_T_SAN) &&
1115 (is_valid_ether_addr(ha->addr))) {
1116 memcpy(hba->ctlr.ctl_src_addr, ha->addr, ETH_ALEN);
1117 sel_san_mac = 1;
1118 BNX2FC_MISC_DBG("Found SAN MAC\n");
1119 }
1120 }
1121 rcu_read_unlock();
1122
1123 if (!sel_san_mac)
1124 return -ENODEV;
1125
1126 hba->fip_packet_type.func = bnx2fc_fip_recv;
1127 hba->fip_packet_type.type = htons(ETH_P_FIP);
1128 hba->fip_packet_type.dev = netdev;
1129 dev_add_pack(&hba->fip_packet_type);
1130
1131 hba->fcoe_packet_type.func = bnx2fc_rcv;
1132 hba->fcoe_packet_type.type = __constant_htons(ETH_P_FCOE);
1133 hba->fcoe_packet_type.dev = netdev;
1134 dev_add_pack(&hba->fcoe_packet_type);
1135
1136 return 0;
1137}
1138
1139static int bnx2fc_attach_transport(void)
1140{
1141 bnx2fc_transport_template =
1142 fc_attach_transport(&bnx2fc_transport_function);
1143
1144 if (bnx2fc_transport_template == NULL) {
1145 printk(KERN_ERR PFX "Failed to attach FC transport\n");
1146 return -ENODEV;
1147 }
1148
1149 bnx2fc_vport_xport_template =
1150 fc_attach_transport(&bnx2fc_vport_xport_function);
1151 if (bnx2fc_vport_xport_template == NULL) {
1152 printk(KERN_ERR PFX
1153 "Failed to attach FC transport for vport\n");
1154 fc_release_transport(bnx2fc_transport_template);
1155 bnx2fc_transport_template = NULL;
1156 return -ENODEV;
1157 }
1158 return 0;
1159}
1160static void bnx2fc_release_transport(void)
1161{
1162 fc_release_transport(bnx2fc_transport_template);
1163 fc_release_transport(bnx2fc_vport_xport_template);
1164 bnx2fc_transport_template = NULL;
1165 bnx2fc_vport_xport_template = NULL;
1166}
1167
1168static void bnx2fc_interface_release(struct kref *kref)
1169{
1170 struct bnx2fc_hba *hba;
1171 struct net_device *netdev;
1172 struct net_device *phys_dev;
1173
1174 hba = container_of(kref, struct bnx2fc_hba, kref);
1175 BNX2FC_HBA_DBG(hba->ctlr.lp, "Interface is being released\n");
1176
1177 netdev = hba->netdev;
1178 phys_dev = hba->phys_dev;
1179
1180 /* tear-down FIP controller */
1181 if (test_and_clear_bit(BNX2FC_CTLR_INIT_DONE, &hba->init_done))
1182 fcoe_ctlr_destroy(&hba->ctlr);
1183
1184 /* Free the command manager */
1185 if (hba->cmd_mgr) {
1186 bnx2fc_cmd_mgr_free(hba->cmd_mgr);
1187 hba->cmd_mgr = NULL;
1188 }
1189 dev_put(netdev);
1190 module_put(THIS_MODULE);
1191}
1192
1193static inline void bnx2fc_interface_get(struct bnx2fc_hba *hba)
1194{
1195 kref_get(&hba->kref);
1196}
1197
1198static inline void bnx2fc_interface_put(struct bnx2fc_hba *hba)
1199{
1200 kref_put(&hba->kref, bnx2fc_interface_release);
1201}
1202static void bnx2fc_interface_destroy(struct bnx2fc_hba *hba)
1203{
1204 bnx2fc_unbind_pcidev(hba);
1205 kfree(hba);
1206}
1207
1208/**
1209 * bnx2fc_interface_create - create a new fcoe instance
1210 *
1211 * @cnic: pointer to cnic device
1212 *
1213 * Creates a new FCoE instance on the given device which include allocating
1214 * hba structure, scsi_host and lport structures.
1215 */
1216static struct bnx2fc_hba *bnx2fc_interface_create(struct cnic_dev *cnic)
1217{
1218 struct bnx2fc_hba *hba;
1219 int rc;
1220
1221 hba = kzalloc(sizeof(*hba), GFP_KERNEL);
1222 if (!hba) {
1223 printk(KERN_ERR PFX "Unable to allocate hba structure\n");
1224 return NULL;
1225 }
1226 spin_lock_init(&hba->hba_lock);
1227 mutex_init(&hba->hba_mutex);
1228
1229 hba->cnic = cnic;
1230 rc = bnx2fc_bind_pcidev(hba);
1231 if (rc)
1232 goto bind_err;
1233 hba->phys_dev = cnic->netdev;
1234 /* will get overwritten after we do vlan discovery */
1235 hba->netdev = hba->phys_dev;
1236
1237 init_waitqueue_head(&hba->shutdown_wait);
1238 init_waitqueue_head(&hba->destroy_wait);
1239
1240 return hba;
1241bind_err:
1242 printk(KERN_ERR PFX "create_interface: bind error\n");
1243 kfree(hba);
1244 return NULL;
1245}
1246
1247static int bnx2fc_interface_setup(struct bnx2fc_hba *hba,
1248 enum fip_state fip_mode)
1249{
1250 int rc = 0;
1251 struct net_device *netdev = hba->netdev;
1252 struct fcoe_ctlr *fip = &hba->ctlr;
1253
1254 dev_hold(netdev);
1255 kref_init(&hba->kref);
1256
1257 hba->flags = 0;
1258
1259 /* Initialize FIP */
1260 memset(fip, 0, sizeof(*fip));
1261 fcoe_ctlr_init(fip, fip_mode);
1262 hba->ctlr.send = bnx2fc_fip_send;
1263 hba->ctlr.update_mac = bnx2fc_update_src_mac;
1264 hba->ctlr.get_src_addr = bnx2fc_get_src_mac;
1265 set_bit(BNX2FC_CTLR_INIT_DONE, &hba->init_done);
1266
1267 rc = bnx2fc_netdev_setup(hba);
1268 if (rc)
1269 goto setup_err;
1270
1271 hba->next_conn_id = 0;
1272
1273 memset(hba->tgt_ofld_list, 0, sizeof(hba->tgt_ofld_list));
1274 hba->num_ofld_sess = 0;
1275
1276 return 0;
1277
1278setup_err:
1279 fcoe_ctlr_destroy(&hba->ctlr);
1280 dev_put(netdev);
1281 bnx2fc_interface_put(hba);
1282 return rc;
1283}
1284
1285/**
1286 * bnx2fc_if_create - Create FCoE instance on a given interface
1287 *
1288 * @hba: FCoE interface to create a local port on
1289 * @parent: Device pointer to be the parent in sysfs for the SCSI host
1290 * @npiv: Indicates if the port is vport or not
1291 *
1292 * Creates a fc_lport instance and a Scsi_Host instance and configure them.
1293 *
1294 * Returns: Allocated fc_lport or an error pointer
1295 */
1296static struct fc_lport *bnx2fc_if_create(struct bnx2fc_hba *hba,
1297 struct device *parent, int npiv)
1298{
1299 struct fc_lport *lport = NULL;
1300 struct fcoe_port *port;
1301 struct Scsi_Host *shost;
1302 struct fc_vport *vport = dev_to_vport(parent);
1303 int rc = 0;
1304
1305 /* Allocate Scsi_Host structure */
1306 if (!npiv) {
1307 lport = libfc_host_alloc(&bnx2fc_shost_template,
1308 sizeof(struct fcoe_port));
1309 } else {
1310 lport = libfc_vport_create(vport,
1311 sizeof(struct fcoe_port));
1312 }
1313
1314 if (!lport) {
1315 printk(KERN_ERR PFX "could not allocate scsi host structure\n");
1316 return NULL;
1317 }
1318 shost = lport->host;
1319 port = lport_priv(lport);
1320 port->lport = lport;
1321 port->priv = hba;
1322 INIT_WORK(&port->destroy_work, bnx2fc_destroy_work);
1323
1324 /* Configure fcoe_port */
1325 rc = bnx2fc_lport_config(lport);
1326 if (rc)
1327 goto lp_config_err;
1328
1329 if (npiv) {
1330 vport = dev_to_vport(parent);
1331 printk(KERN_ERR PFX "Setting vport names, 0x%llX 0x%llX\n",
1332 vport->node_name, vport->port_name);
1333 fc_set_wwnn(lport, vport->node_name);
1334 fc_set_wwpn(lport, vport->port_name);
1335 }
1336 /* Configure netdev and networking properties of the lport */
1337 rc = bnx2fc_net_config(lport);
1338 if (rc) {
1339 printk(KERN_ERR PFX "Error on bnx2fc_net_config\n");
1340 goto lp_config_err;
1341 }
1342
1343 rc = bnx2fc_shost_config(lport, parent);
1344 if (rc) {
1345 printk(KERN_ERR PFX "Couldnt configure shost for %s\n",
1346 hba->netdev->name);
1347 goto lp_config_err;
1348 }
1349
1350 /* Initialize the libfc library */
1351 rc = bnx2fc_libfc_config(lport);
1352 if (rc) {
1353 printk(KERN_ERR PFX "Couldnt configure libfc\n");
1354 goto shost_err;
1355 }
1356 fc_host_port_type(lport->host) = FC_PORTTYPE_UNKNOWN;
1357
1358 /* Allocate exchange manager */
1359 if (!npiv) {
1360 rc = bnx2fc_em_config(lport);
1361 if (rc) {
1362 printk(KERN_ERR PFX "Error on bnx2fc_em_config\n");
1363 goto shost_err;
1364 }
1365 }
1366
1367 bnx2fc_interface_get(hba);
1368 return lport;
1369
1370shost_err:
1371 scsi_remove_host(shost);
1372lp_config_err:
1373 scsi_host_put(lport->host);
1374 return NULL;
1375}
1376
1377static void bnx2fc_netdev_cleanup(struct bnx2fc_hba *hba)
1378{
1379 /* Dont listen for Ethernet packets anymore */
1380 __dev_remove_pack(&hba->fcoe_packet_type);
1381 __dev_remove_pack(&hba->fip_packet_type);
1382 synchronize_net();
1383}
1384
1385static void bnx2fc_if_destroy(struct fc_lport *lport)
1386{
1387 struct fcoe_port *port = lport_priv(lport);
1388 struct bnx2fc_hba *hba = port->priv;
1389
1390 BNX2FC_HBA_DBG(hba->ctlr.lp, "ENTERED bnx2fc_if_destroy\n");
1391 /* Stop the transmit retry timer */
1392 del_timer_sync(&port->timer);
1393
1394 /* Free existing transmit skbs */
1395 fcoe_clean_pending_queue(lport);
1396
1397 bnx2fc_interface_put(hba);
1398
1399 /* Free queued packets for the receive thread */
1400 bnx2fc_clean_rx_queue(lport);
1401
1402 /* Detach from scsi-ml */
1403 fc_remove_host(lport->host);
1404 scsi_remove_host(lport->host);
1405
1406 /*
1407 * Note that only the physical lport will have the exchange manager.
1408 * for vports, this function is NOP
1409 */
1410 fc_exch_mgr_free(lport);
1411
1412 /* Free memory used by statistical counters */
1413 fc_lport_free_stats(lport);
1414
1415 /* Release Scsi_Host */
1416 scsi_host_put(lport->host);
1417}
1418
1419/**
1420 * bnx2fc_destroy - Destroy a bnx2fc FCoE interface
1421 *
1422 * @buffer: The name of the Ethernet interface to be destroyed
1423 * @kp: The associated kernel parameter
1424 *
1425 * Called from sysfs.
1426 *
1427 * Returns: 0 for success
1428 */
1429static int bnx2fc_destroy(struct net_device *netdev)
1430{
1431 struct bnx2fc_hba *hba = NULL;
1432 struct net_device *phys_dev;
1433 int rc = 0;
1434
1435 if (!rtnl_trylock())
1436 return restart_syscall();
1437
1438 mutex_lock(&bnx2fc_dev_lock);
1439#ifdef CONFIG_SCSI_BNX2X_FCOE_MODULE
1440 if (THIS_MODULE->state != MODULE_STATE_LIVE) {
1441 rc = -ENODEV;
1442 goto netdev_err;
1443 }
1444#endif
1445 /* obtain physical netdev */
1446 if (netdev->priv_flags & IFF_802_1Q_VLAN)
1447 phys_dev = vlan_dev_real_dev(netdev);
1448 else {
1449 printk(KERN_ERR PFX "Not a vlan device\n");
1450 rc = -ENODEV;
1451 goto netdev_err;
1452 }
1453
1454 hba = bnx2fc_hba_lookup(phys_dev);
1455 if (!hba || !hba->ctlr.lp) {
1456 rc = -ENODEV;
1457 printk(KERN_ERR PFX "bnx2fc_destroy: hba or lport not found\n");
1458 goto netdev_err;
1459 }
1460
1461 if (!test_bit(BNX2FC_CREATE_DONE, &hba->init_done)) {
1462 printk(KERN_ERR PFX "bnx2fc_destroy: Create not called\n");
1463 goto netdev_err;
1464 }
1465
1466 bnx2fc_netdev_cleanup(hba);
1467
1468 bnx2fc_stop(hba);
1469
1470 bnx2fc_if_destroy(hba->ctlr.lp);
1471
1472 destroy_workqueue(hba->timer_work_queue);
1473
1474 if (test_bit(BNX2FC_FW_INIT_DONE, &hba->init_done))
1475 bnx2fc_fw_destroy(hba);
1476
1477 clear_bit(BNX2FC_CREATE_DONE, &hba->init_done);
1478netdev_err:
1479 mutex_unlock(&bnx2fc_dev_lock);
1480 rtnl_unlock();
1481 return rc;
1482}
1483
1484static void bnx2fc_destroy_work(struct work_struct *work)
1485{
1486 struct fcoe_port *port;
1487 struct fc_lport *lport;
1488
1489 port = container_of(work, struct fcoe_port, destroy_work);
1490 lport = port->lport;
1491
1492 BNX2FC_HBA_DBG(lport, "Entered bnx2fc_destroy_work\n");
1493
1494 bnx2fc_port_shutdown(lport);
1495 rtnl_lock();
1496 mutex_lock(&bnx2fc_dev_lock);
1497 bnx2fc_if_destroy(lport);
1498 mutex_unlock(&bnx2fc_dev_lock);
1499 rtnl_unlock();
1500}
1501
1502static void bnx2fc_unbind_adapter_devices(struct bnx2fc_hba *hba)
1503{
1504 bnx2fc_free_fw_resc(hba);
1505 bnx2fc_free_task_ctx(hba);
1506}
1507
1508/**
1509 * bnx2fc_bind_adapter_devices - binds bnx2fc adapter with the associated
1510 * pci structure
1511 *
1512 * @hba: Adapter instance
1513 */
1514static int bnx2fc_bind_adapter_devices(struct bnx2fc_hba *hba)
1515{
1516 if (bnx2fc_setup_task_ctx(hba))
1517 goto mem_err;
1518
1519 if (bnx2fc_setup_fw_resc(hba))
1520 goto mem_err;
1521
1522 return 0;
1523mem_err:
1524 bnx2fc_unbind_adapter_devices(hba);
1525 return -ENOMEM;
1526}
1527
1528static int bnx2fc_bind_pcidev(struct bnx2fc_hba *hba)
1529{
1530 struct cnic_dev *cnic;
1531
1532 if (!hba->cnic) {
1533 printk(KERN_ERR PFX "cnic is NULL\n");
1534 return -ENODEV;
1535 }
1536 cnic = hba->cnic;
1537 hba->pcidev = cnic->pcidev;
1538 if (hba->pcidev)
1539 pci_dev_get(hba->pcidev);
1540
1541 return 0;
1542}
1543
1544static void bnx2fc_unbind_pcidev(struct bnx2fc_hba *hba)
1545{
1546 if (hba->pcidev)
1547 pci_dev_put(hba->pcidev);
1548 hba->pcidev = NULL;
1549}
1550
1551
1552
1553/**
1554 * bnx2fc_ulp_start - cnic callback to initialize & start adapter instance
1555 *
1556 * @handle: transport handle pointing to adapter struture
1557 *
1558 * This function maps adapter structure to pcidev structure and initiates
1559 * firmware handshake to enable/initialize on-chip FCoE components.
1560 * This bnx2fc - cnic interface api callback is used after following
1561 * conditions are met -
1562 * a) underlying network interface is up (marked by event NETDEV_UP
1563 * from netdev
1564 * b) bnx2fc adatper structure is registered.
1565 */
1566static void bnx2fc_ulp_start(void *handle)
1567{
1568 struct bnx2fc_hba *hba = handle;
1569 struct fc_lport *lport = hba->ctlr.lp;
1570
1571 BNX2FC_MISC_DBG("Entered %s\n", __func__);
1572 mutex_lock(&bnx2fc_dev_lock);
1573
1574 if (test_bit(BNX2FC_FW_INIT_DONE, &hba->init_done))
1575 goto start_disc;
1576
1577 if (test_bit(BNX2FC_CREATE_DONE, &hba->init_done))
1578 bnx2fc_fw_init(hba);
1579
1580start_disc:
1581 mutex_unlock(&bnx2fc_dev_lock);
1582
1583 BNX2FC_MISC_DBG("bnx2fc started.\n");
1584
1585 /* Kick off Fabric discovery*/
1586 if (test_bit(BNX2FC_CREATE_DONE, &hba->init_done)) {
1587 printk(KERN_ERR PFX "ulp_init: start discovery\n");
1588 lport->tt.frame_send = bnx2fc_xmit;
1589 bnx2fc_start_disc(hba);
1590 }
1591}
1592
1593static void bnx2fc_port_shutdown(struct fc_lport *lport)
1594{
1595 BNX2FC_MISC_DBG("Entered %s\n", __func__);
1596 fc_fabric_logoff(lport);
1597 fc_lport_destroy(lport);
1598}
1599
1600static void bnx2fc_stop(struct bnx2fc_hba *hba)
1601{
1602 struct fc_lport *lport;
1603 struct fc_lport *vport;
1604
1605 BNX2FC_MISC_DBG("ENTERED %s - init_done = %ld\n", __func__,
1606 hba->init_done);
1607 if (test_bit(BNX2FC_FW_INIT_DONE, &hba->init_done) &&
1608 test_bit(BNX2FC_CREATE_DONE, &hba->init_done)) {
1609 lport = hba->ctlr.lp;
1610 bnx2fc_port_shutdown(lport);
1611 BNX2FC_HBA_DBG(lport, "bnx2fc_stop: waiting for %d "
1612 "offloaded sessions\n",
1613 hba->num_ofld_sess);
1614 wait_event_interruptible(hba->shutdown_wait,
1615 (hba->num_ofld_sess == 0));
1616 mutex_lock(&lport->lp_mutex);
1617 list_for_each_entry(vport, &lport->vports, list)
1618 fc_host_port_type(vport->host) = FC_PORTTYPE_UNKNOWN;
1619 mutex_unlock(&lport->lp_mutex);
1620 fc_host_port_type(lport->host) = FC_PORTTYPE_UNKNOWN;
1621 fcoe_ctlr_link_down(&hba->ctlr);
1622 fcoe_clean_pending_queue(lport);
1623
1624 mutex_lock(&hba->hba_mutex);
1625 clear_bit(ADAPTER_STATE_UP, &hba->adapter_state);
1626 clear_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state);
1627
1628 clear_bit(ADAPTER_STATE_READY, &hba->adapter_state);
1629 mutex_unlock(&hba->hba_mutex);
1630 }
1631}
1632
1633static int bnx2fc_fw_init(struct bnx2fc_hba *hba)
1634{
1635#define BNX2FC_INIT_POLL_TIME (1000 / HZ)
1636 int rc = -1;
1637 int i = HZ;
1638
1639 rc = bnx2fc_bind_adapter_devices(hba);
1640 if (rc) {
1641 printk(KERN_ALERT PFX
1642 "bnx2fc_bind_adapter_devices failed - rc = %d\n", rc);
1643 goto err_out;
1644 }
1645
1646 rc = bnx2fc_send_fw_fcoe_init_msg(hba);
1647 if (rc) {
1648 printk(KERN_ALERT PFX
1649 "bnx2fc_send_fw_fcoe_init_msg failed - rc = %d\n", rc);
1650 goto err_unbind;
1651 }
1652
1653 /*
1654 * Wait until the adapter init message is complete, and adapter
1655 * state is UP.
1656 */
1657 while (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state) && i--)
1658 msleep(BNX2FC_INIT_POLL_TIME);
1659
1660 if (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state)) {
1661 printk(KERN_ERR PFX "bnx2fc_start: %s failed to initialize. "
1662 "Ignoring...\n",
1663 hba->cnic->netdev->name);
1664 rc = -1;
1665 goto err_unbind;
1666 }
1667
1668
1669 /* Mark HBA to indicate that the FW INIT is done */
1670 set_bit(BNX2FC_FW_INIT_DONE, &hba->init_done);
1671 return 0;
1672
1673err_unbind:
1674 bnx2fc_unbind_adapter_devices(hba);
1675err_out:
1676 return rc;
1677}
1678
1679static void bnx2fc_fw_destroy(struct bnx2fc_hba *hba)
1680{
1681 if (test_and_clear_bit(BNX2FC_FW_INIT_DONE, &hba->init_done)) {
1682 if (bnx2fc_send_fw_fcoe_destroy_msg(hba) == 0) {
1683 init_timer(&hba->destroy_timer);
1684 hba->destroy_timer.expires = BNX2FC_FW_TIMEOUT +
1685 jiffies;
1686 hba->destroy_timer.function = bnx2fc_destroy_timer;
1687 hba->destroy_timer.data = (unsigned long)hba;
1688 add_timer(&hba->destroy_timer);
1689 wait_event_interruptible(hba->destroy_wait,
1690 (hba->flags &
1691 BNX2FC_FLAG_DESTROY_CMPL));
1692 /* This should never happen */
1693 if (signal_pending(current))
1694 flush_signals(current);
1695
1696 del_timer_sync(&hba->destroy_timer);
1697 }
1698 bnx2fc_unbind_adapter_devices(hba);
1699 }
1700}
1701
1702/**
1703 * bnx2fc_ulp_stop - cnic callback to shutdown adapter instance
1704 *
1705 * @handle: transport handle pointing to adapter structure
1706 *
1707 * Driver checks if adapter is already in shutdown mode, if not start
1708 * the shutdown process.
1709 */
1710static void bnx2fc_ulp_stop(void *handle)
1711{
1712 struct bnx2fc_hba *hba = (struct bnx2fc_hba *)handle;
1713
1714 printk(KERN_ERR "ULP_STOP\n");
1715
1716 mutex_lock(&bnx2fc_dev_lock);
1717 bnx2fc_stop(hba);
1718 bnx2fc_fw_destroy(hba);
1719 mutex_unlock(&bnx2fc_dev_lock);
1720}
1721
1722static void bnx2fc_start_disc(struct bnx2fc_hba *hba)
1723{
1724 struct fc_lport *lport;
1725 int wait_cnt = 0;
1726
1727 BNX2FC_MISC_DBG("Entered %s\n", __func__);
1728 /* Kick off FIP/FLOGI */
1729 if (!test_bit(BNX2FC_FW_INIT_DONE, &hba->init_done)) {
1730 printk(KERN_ERR PFX "Init not done yet\n");
1731 return;
1732 }
1733
1734 lport = hba->ctlr.lp;
1735 BNX2FC_HBA_DBG(lport, "calling fc_fabric_login\n");
1736
1737 if (!bnx2fc_link_ok(lport)) {
1738 BNX2FC_HBA_DBG(lport, "ctlr_link_up\n");
1739 fcoe_ctlr_link_up(&hba->ctlr);
1740 fc_host_port_type(lport->host) = FC_PORTTYPE_NPORT;
1741 set_bit(ADAPTER_STATE_READY, &hba->adapter_state);
1742 }
1743
1744 /* wait for the FCF to be selected before issuing FLOGI */
1745 while (!hba->ctlr.sel_fcf) {
1746 msleep(250);
1747 /* give up after 3 secs */
1748 if (++wait_cnt > 12)
1749 break;
1750 }
1751 fc_lport_init(lport);
1752 fc_fabric_login(lport);
1753}
1754
1755
1756/**
1757 * bnx2fc_ulp_init - Initialize an adapter instance
1758 *
1759 * @dev : cnic device handle
1760 * Called from cnic_register_driver() context to initialize all
1761 * enumerated cnic devices. This routine allocates adapter structure
1762 * and other device specific resources.
1763 */
1764static void bnx2fc_ulp_init(struct cnic_dev *dev)
1765{
1766 struct bnx2fc_hba *hba;
1767 int rc = 0;
1768
1769 BNX2FC_MISC_DBG("Entered %s\n", __func__);
1770 /* bnx2fc works only when bnx2x is loaded */
1771 if (!test_bit(CNIC_F_BNX2X_CLASS, &dev->flags)) {
1772 printk(KERN_ERR PFX "bnx2fc FCoE not supported on %s,"
1773 " flags: %lx\n",
1774 dev->netdev->name, dev->flags);
1775 return;
1776 }
1777
1778 /* Configure FCoE interface */
1779 hba = bnx2fc_interface_create(dev);
1780 if (!hba) {
1781 printk(KERN_ERR PFX "hba initialization failed\n");
1782 return;
1783 }
1784
1785 /* Add HBA to the adapter list */
1786 mutex_lock(&bnx2fc_dev_lock);
1787 list_add_tail(&hba->link, &adapter_list);
1788 adapter_count++;
1789 mutex_unlock(&bnx2fc_dev_lock);
1790
1791 clear_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic);
1792 rc = dev->register_device(dev, CNIC_ULP_FCOE,
1793 (void *) hba);
1794 if (rc)
1795 printk(KERN_ALERT PFX "register_device failed, rc = %d\n", rc);
1796 else
1797 set_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic);
1798}
1799
1800
1801static int bnx2fc_disable(struct net_device *netdev)
1802{
1803 struct bnx2fc_hba *hba;
1804 struct net_device *phys_dev;
1805 struct ethtool_drvinfo drvinfo;
1806 int rc = 0;
1807
1808 if (!rtnl_trylock()) {
1809 printk(KERN_ERR PFX "retrying for rtnl_lock\n");
1810 return -EIO;
1811 }
1812
1813 mutex_lock(&bnx2fc_dev_lock);
1814
1815 if (THIS_MODULE->state != MODULE_STATE_LIVE) {
1816 rc = -ENODEV;
1817 goto nodev;
1818 }
1819
1820 /* obtain physical netdev */
1821 if (netdev->priv_flags & IFF_802_1Q_VLAN)
1822 phys_dev = vlan_dev_real_dev(netdev);
1823 else {
1824 printk(KERN_ERR PFX "Not a vlan device\n");
1825 rc = -ENODEV;
1826 goto nodev;
1827 }
1828
1829 /* verify if the physical device is a netxtreme2 device */
1830 if (phys_dev->ethtool_ops && phys_dev->ethtool_ops->get_drvinfo) {
1831 memset(&drvinfo, 0, sizeof(drvinfo));
1832 phys_dev->ethtool_ops->get_drvinfo(phys_dev, &drvinfo);
1833 if (strcmp(drvinfo.driver, "bnx2x")) {
1834 printk(KERN_ERR PFX "Not a netxtreme2 device\n");
1835 rc = -ENODEV;
1836 goto nodev;
1837 }
1838 } else {
1839 printk(KERN_ERR PFX "unable to obtain drv_info\n");
1840 rc = -ENODEV;
1841 goto nodev;
1842 }
1843
1844 printk(KERN_ERR PFX "phys_dev is netxtreme2 device\n");
1845
1846 /* obtain hba and initialize rest of the structure */
1847 hba = bnx2fc_hba_lookup(phys_dev);
1848 if (!hba || !hba->ctlr.lp) {
1849 rc = -ENODEV;
1850 printk(KERN_ERR PFX "bnx2fc_disable: hba or lport not found\n");
1851 } else {
1852 fcoe_ctlr_link_down(&hba->ctlr);
1853 fcoe_clean_pending_queue(hba->ctlr.lp);
1854 }
1855
1856nodev:
1857 mutex_unlock(&bnx2fc_dev_lock);
1858 rtnl_unlock();
1859 return rc;
1860}
1861
1862
1863static int bnx2fc_enable(struct net_device *netdev)
1864{
1865 struct bnx2fc_hba *hba;
1866 struct net_device *phys_dev;
1867 struct ethtool_drvinfo drvinfo;
1868 int rc = 0;
1869
1870 if (!rtnl_trylock()) {
1871 printk(KERN_ERR PFX "retrying for rtnl_lock\n");
1872 return -EIO;
1873 }
1874
1875 BNX2FC_MISC_DBG("Entered %s\n", __func__);
1876 mutex_lock(&bnx2fc_dev_lock);
1877
1878 if (THIS_MODULE->state != MODULE_STATE_LIVE) {
1879 rc = -ENODEV;
1880 goto nodev;
1881 }
1882
1883 /* obtain physical netdev */
1884 if (netdev->priv_flags & IFF_802_1Q_VLAN)
1885 phys_dev = vlan_dev_real_dev(netdev);
1886 else {
1887 printk(KERN_ERR PFX "Not a vlan device\n");
1888 rc = -ENODEV;
1889 goto nodev;
1890 }
1891 /* verify if the physical device is a netxtreme2 device */
1892 if (phys_dev->ethtool_ops && phys_dev->ethtool_ops->get_drvinfo) {
1893 memset(&drvinfo, 0, sizeof(drvinfo));
1894 phys_dev->ethtool_ops->get_drvinfo(phys_dev, &drvinfo);
1895 if (strcmp(drvinfo.driver, "bnx2x")) {
1896 printk(KERN_ERR PFX "Not a netxtreme2 device\n");
1897 rc = -ENODEV;
1898 goto nodev;
1899 }
1900 } else {
1901 printk(KERN_ERR PFX "unable to obtain drv_info\n");
1902 rc = -ENODEV;
1903 goto nodev;
1904 }
1905
1906 /* obtain hba and initialize rest of the structure */
1907 hba = bnx2fc_hba_lookup(phys_dev);
1908 if (!hba || !hba->ctlr.lp) {
1909 rc = -ENODEV;
1910 printk(KERN_ERR PFX "bnx2fc_enable: hba or lport not found\n");
1911 } else if (!bnx2fc_link_ok(hba->ctlr.lp))
1912 fcoe_ctlr_link_up(&hba->ctlr);
1913
1914nodev:
1915 mutex_unlock(&bnx2fc_dev_lock);
1916 rtnl_unlock();
1917 return rc;
1918}
1919
1920/**
1921 * bnx2fc_create - Create bnx2fc FCoE interface
1922 *
1923 * @buffer: The name of Ethernet interface to create on
1924 * @kp: The associated kernel param
1925 *
1926 * Called from sysfs.
1927 *
1928 * Returns: 0 for success
1929 */
1930static int bnx2fc_create(struct net_device *netdev, enum fip_state fip_mode)
1931{
1932 struct bnx2fc_hba *hba;
1933 struct net_device *phys_dev;
1934 struct fc_lport *lport;
1935 struct ethtool_drvinfo drvinfo;
1936 int rc = 0;
1937 int vlan_id;
1938
1939 BNX2FC_MISC_DBG("Entered bnx2fc_create\n");
1940 if (fip_mode != FIP_MODE_FABRIC) {
1941 printk(KERN_ERR "fip mode not FABRIC\n");
1942 return -EIO;
1943 }
1944
1945 if (!rtnl_trylock()) {
1946 printk(KERN_ERR "trying for rtnl_lock\n");
1947 return -EIO;
1948 }
1949 mutex_lock(&bnx2fc_dev_lock);
1950
1951#ifdef CONFIG_SCSI_BNX2X_FCOE_MODULE
1952 if (THIS_MODULE->state != MODULE_STATE_LIVE) {
1953 rc = -ENODEV;
1954 goto mod_err;
1955 }
1956#endif
1957
1958 if (!try_module_get(THIS_MODULE)) {
1959 rc = -EINVAL;
1960 goto mod_err;
1961 }
1962
1963 /* obtain physical netdev */
1964 if (netdev->priv_flags & IFF_802_1Q_VLAN) {
1965 phys_dev = vlan_dev_real_dev(netdev);
1966 vlan_id = vlan_dev_vlan_id(netdev);
1967 } else {
1968 printk(KERN_ERR PFX "Not a vlan device\n");
1969 rc = -EINVAL;
1970 goto netdev_err;
1971 }
1972 /* verify if the physical device is a netxtreme2 device */
1973 if (phys_dev->ethtool_ops && phys_dev->ethtool_ops->get_drvinfo) {
1974 memset(&drvinfo, 0, sizeof(drvinfo));
1975 phys_dev->ethtool_ops->get_drvinfo(phys_dev, &drvinfo);
1976 if (strcmp(drvinfo.driver, "bnx2x")) {
1977 printk(KERN_ERR PFX "Not a netxtreme2 device\n");
1978 rc = -EINVAL;
1979 goto netdev_err;
1980 }
1981 } else {
1982 printk(KERN_ERR PFX "unable to obtain drv_info\n");
1983 rc = -EINVAL;
1984 goto netdev_err;
1985 }
1986
1987 /* obtain hba and initialize rest of the structure */
1988 hba = bnx2fc_hba_lookup(phys_dev);
1989 if (!hba) {
1990 rc = -ENODEV;
1991 printk(KERN_ERR PFX "bnx2fc_create: hba not found\n");
1992 goto netdev_err;
1993 }
1994
1995 if (!test_bit(BNX2FC_FW_INIT_DONE, &hba->init_done)) {
1996 rc = bnx2fc_fw_init(hba);
1997 if (rc)
1998 goto netdev_err;
1999 }
2000
2001 if (test_bit(BNX2FC_CREATE_DONE, &hba->init_done)) {
2002 rc = -EEXIST;
2003 goto netdev_err;
2004 }
2005
2006 /* update netdev with vlan netdev */
2007 hba->netdev = netdev;
2008 hba->vlan_id = vlan_id;
2009 hba->vlan_enabled = 1;
2010
2011 rc = bnx2fc_interface_setup(hba, fip_mode);
2012 if (rc) {
2013 printk(KERN_ERR PFX "bnx2fc_interface_setup failed\n");
2014 goto ifput_err;
2015 }
2016
2017 hba->timer_work_queue =
2018 create_singlethread_workqueue("bnx2fc_timer_wq");
2019 if (!hba->timer_work_queue) {
2020 printk(KERN_ERR PFX "ulp_init could not create timer_wq\n");
2021 rc = -EINVAL;
2022 goto ifput_err;
2023 }
2024
2025 lport = bnx2fc_if_create(hba, &hba->pcidev->dev, 0);
2026 if (!lport) {
2027 printk(KERN_ERR PFX "Failed to create interface (%s)\n",
2028 netdev->name);
2029 bnx2fc_netdev_cleanup(hba);
2030 rc = -EINVAL;
2031 goto if_create_err;
2032 }
2033
2034 lport->boot_time = jiffies;
2035
2036 /* Make this master N_port */
2037 hba->ctlr.lp = lport;
2038
2039 set_bit(BNX2FC_CREATE_DONE, &hba->init_done);
2040 printk(KERN_ERR PFX "create: START DISC\n");
2041 bnx2fc_start_disc(hba);
2042 /*
2043 * Release from kref_init in bnx2fc_interface_setup, on success
2044 * lport should be holding a reference taken in bnx2fc_if_create
2045 */
2046 bnx2fc_interface_put(hba);
2047 /* put netdev that was held while calling dev_get_by_name */
2048 mutex_unlock(&bnx2fc_dev_lock);
2049 rtnl_unlock();
2050 return 0;
2051
2052if_create_err:
2053 destroy_workqueue(hba->timer_work_queue);
2054ifput_err:
2055 bnx2fc_interface_put(hba);
2056netdev_err:
2057 module_put(THIS_MODULE);
2058mod_err:
2059 mutex_unlock(&bnx2fc_dev_lock);
2060 rtnl_unlock();
2061 return rc;
2062}
2063
2064/**
2065 * bnx2fc_find_hba_for_cnic - maps cnic instance to bnx2fc adapter instance
2066 *
2067 * @cnic: Pointer to cnic device instance
2068 *
2069 **/
2070static struct bnx2fc_hba *bnx2fc_find_hba_for_cnic(struct cnic_dev *cnic)
2071{
2072 struct list_head *list;
2073 struct list_head *temp;
2074 struct bnx2fc_hba *hba;
2075
2076 /* Called with bnx2fc_dev_lock held */
2077 list_for_each_safe(list, temp, &adapter_list) {
2078 hba = (struct bnx2fc_hba *)list;
2079 if (hba->cnic == cnic)
2080 return hba;
2081 }
2082 return NULL;
2083}
2084
2085static struct bnx2fc_hba *bnx2fc_hba_lookup(struct net_device *phys_dev)
2086{
2087 struct list_head *list;
2088 struct list_head *temp;
2089 struct bnx2fc_hba *hba;
2090
2091 /* Called with bnx2fc_dev_lock held */
2092 list_for_each_safe(list, temp, &adapter_list) {
2093 hba = (struct bnx2fc_hba *)list;
2094 if (hba->phys_dev == phys_dev)
2095 return hba;
2096 }
2097 printk(KERN_ERR PFX "hba_lookup: hba NULL\n");
2098 return NULL;
2099}
2100
2101/**
2102 * bnx2fc_ulp_exit - shuts down adapter instance and frees all resources
2103 *
2104 * @dev cnic device handle
2105 */
2106static void bnx2fc_ulp_exit(struct cnic_dev *dev)
2107{
2108 struct bnx2fc_hba *hba;
2109
2110 BNX2FC_MISC_DBG("Entered bnx2fc_ulp_exit\n");
2111
2112 if (!test_bit(CNIC_F_BNX2X_CLASS, &dev->flags)) {
2113 printk(KERN_ERR PFX "bnx2fc port check: %s, flags: %lx\n",
2114 dev->netdev->name, dev->flags);
2115 return;
2116 }
2117
2118 mutex_lock(&bnx2fc_dev_lock);
2119 hba = bnx2fc_find_hba_for_cnic(dev);
2120 if (!hba) {
2121 printk(KERN_ERR PFX "bnx2fc_ulp_exit: hba not found, dev 0%p\n",
2122 dev);
2123 mutex_unlock(&bnx2fc_dev_lock);
2124 return;
2125 }
2126
2127 list_del_init(&hba->link);
2128 adapter_count--;
2129
2130 if (test_bit(BNX2FC_CREATE_DONE, &hba->init_done)) {
2131 /* destroy not called yet, move to quiesced list */
2132 bnx2fc_netdev_cleanup(hba);
2133 bnx2fc_if_destroy(hba->ctlr.lp);
2134 }
2135 mutex_unlock(&bnx2fc_dev_lock);
2136
2137 bnx2fc_ulp_stop(hba);
2138 /* unregister cnic device */
2139 if (test_and_clear_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic))
2140 hba->cnic->unregister_device(hba->cnic, CNIC_ULP_FCOE);
2141 bnx2fc_interface_destroy(hba);
2142}
2143
2144/**
2145 * bnx2fc_fcoe_reset - Resets the fcoe
2146 *
2147 * @shost: shost the reset is from
2148 *
2149 * Returns: always 0
2150 */
2151static int bnx2fc_fcoe_reset(struct Scsi_Host *shost)
2152{
2153 struct fc_lport *lport = shost_priv(shost);
2154 fc_lport_reset(lport);
2155 return 0;
2156}
2157
2158
2159static bool bnx2fc_match(struct net_device *netdev)
2160{
2161 mutex_lock(&bnx2fc_dev_lock);
2162 if (netdev->priv_flags & IFF_802_1Q_VLAN) {
2163 struct net_device *phys_dev = vlan_dev_real_dev(netdev);
2164
2165 if (bnx2fc_hba_lookup(phys_dev)) {
2166 mutex_unlock(&bnx2fc_dev_lock);
2167 return true;
2168 }
2169 }
2170 mutex_unlock(&bnx2fc_dev_lock);
2171 return false;
2172}
2173
2174
2175static struct fcoe_transport bnx2fc_transport = {
2176 .name = {"bnx2fc"},
2177 .attached = false,
2178 .list = LIST_HEAD_INIT(bnx2fc_transport.list),
2179 .match = bnx2fc_match,
2180 .create = bnx2fc_create,
2181 .destroy = bnx2fc_destroy,
2182 .enable = bnx2fc_enable,
2183 .disable = bnx2fc_disable,
2184};
2185
2186/**
2187 * bnx2fc_percpu_thread_create - Create a receive thread for an
2188 * online CPU
2189 *
2190 * @cpu: cpu index for the online cpu
2191 */
2192static void bnx2fc_percpu_thread_create(unsigned int cpu)
2193{
2194 struct bnx2fc_percpu_s *p;
2195 struct task_struct *thread;
2196
2197 p = &per_cpu(bnx2fc_percpu, cpu);
2198
2199 thread = kthread_create(bnx2fc_percpu_io_thread,
2200 (void *)p,
2201 "bnx2fc_thread/%d", cpu);
2202 /* bind thread to the cpu */
2203 if (likely(!IS_ERR(p->iothread))) {
2204 kthread_bind(thread, cpu);
2205 p->iothread = thread;
2206 wake_up_process(thread);
2207 }
2208}
2209
2210static void bnx2fc_percpu_thread_destroy(unsigned int cpu)
2211{
2212 struct bnx2fc_percpu_s *p;
2213 struct task_struct *thread;
2214 struct bnx2fc_work *work, *tmp;
2215 LIST_HEAD(work_list);
2216
2217 BNX2FC_MISC_DBG("destroying io thread for CPU %d\n", cpu);
2218
2219 /* Prevent any new work from being queued for this CPU */
2220 p = &per_cpu(bnx2fc_percpu, cpu);
2221 spin_lock_bh(&p->fp_work_lock);
2222 thread = p->iothread;
2223 p->iothread = NULL;
2224
2225
2226 /* Free all work in the list */
2227 list_for_each_entry_safe(work, tmp, &work_list, list) {
2228 list_del_init(&work->list);
2229 bnx2fc_process_cq_compl(work->tgt, work->wqe);
2230 kfree(work);
2231 }
2232
2233 spin_unlock_bh(&p->fp_work_lock);
2234
2235 if (thread)
2236 kthread_stop(thread);
2237}
2238
2239/**
2240 * bnx2fc_cpu_callback - Handler for CPU hotplug events
2241 *
2242 * @nfb: The callback data block
2243 * @action: The event triggering the callback
2244 * @hcpu: The index of the CPU that the event is for
2245 *
2246 * This creates or destroys per-CPU data for fcoe
2247 *
2248 * Returns NOTIFY_OK always.
2249 */
2250static int bnx2fc_cpu_callback(struct notifier_block *nfb,
2251 unsigned long action, void *hcpu)
2252{
2253 unsigned cpu = (unsigned long)hcpu;
2254
2255 switch (action) {
2256 case CPU_ONLINE:
2257 case CPU_ONLINE_FROZEN:
2258 printk(PFX "CPU %x online: Create Rx thread\n", cpu);
2259 bnx2fc_percpu_thread_create(cpu);
2260 break;
2261 case CPU_DEAD:
2262 case CPU_DEAD_FROZEN:
2263 printk(PFX "CPU %x offline: Remove Rx thread\n", cpu);
2264 bnx2fc_percpu_thread_destroy(cpu);
2265 break;
2266 default:
2267 break;
2268 }
2269 return NOTIFY_OK;
2270}
2271
2272/**
2273 * bnx2fc_mod_init - module init entry point
2274 *
2275 * Initialize driver wide global data structures, and register
2276 * with cnic module
2277 **/
2278static int __init bnx2fc_mod_init(void)
2279{
2280 struct fcoe_percpu_s *bg;
2281 struct task_struct *l2_thread;
2282 int rc = 0;
2283 unsigned int cpu = 0;
2284 struct bnx2fc_percpu_s *p;
2285
2286 printk(KERN_INFO PFX "%s", version);
2287
2288 /* register as a fcoe transport */
2289 rc = fcoe_transport_attach(&bnx2fc_transport);
2290 if (rc) {
2291 printk(KERN_ERR "failed to register an fcoe transport, check "
2292 "if libfcoe is loaded\n");
2293 goto out;
2294 }
2295
2296 INIT_LIST_HEAD(&adapter_list);
2297 mutex_init(&bnx2fc_dev_lock);
2298 adapter_count = 0;
2299
2300 /* Attach FC transport template */
2301 rc = bnx2fc_attach_transport();
2302 if (rc)
2303 goto detach_ft;
2304
2305 bnx2fc_wq = alloc_workqueue("bnx2fc", 0, 0);
2306 if (!bnx2fc_wq) {
2307 rc = -ENOMEM;
2308 goto release_bt;
2309 }
2310
2311 bg = &bnx2fc_global;
2312 skb_queue_head_init(&bg->fcoe_rx_list);
2313 l2_thread = kthread_create(bnx2fc_l2_rcv_thread,
2314 (void *)bg,
2315 "bnx2fc_l2_thread");
2316 if (IS_ERR(l2_thread)) {
2317 rc = PTR_ERR(l2_thread);
2318 goto free_wq;
2319 }
2320 wake_up_process(l2_thread);
2321 spin_lock_bh(&bg->fcoe_rx_list.lock);
2322 bg->thread = l2_thread;
2323 spin_unlock_bh(&bg->fcoe_rx_list.lock);
2324
2325 for_each_possible_cpu(cpu) {
2326 p = &per_cpu(bnx2fc_percpu, cpu);
2327 INIT_LIST_HEAD(&p->work_list);
2328 spin_lock_init(&p->fp_work_lock);
2329 }
2330
2331 for_each_online_cpu(cpu) {
2332 bnx2fc_percpu_thread_create(cpu);
2333 }
2334
2335 /* Initialize per CPU interrupt thread */
2336 register_hotcpu_notifier(&bnx2fc_cpu_notifier);
2337
2338 cnic_register_driver(CNIC_ULP_FCOE, &bnx2fc_cnic_cb);
2339
2340 return 0;
2341
2342free_wq:
2343 destroy_workqueue(bnx2fc_wq);
2344release_bt:
2345 bnx2fc_release_transport();
2346detach_ft:
2347 fcoe_transport_detach(&bnx2fc_transport);
2348out:
2349 return rc;
2350}
2351
2352static void __exit bnx2fc_mod_exit(void)
2353{
2354 LIST_HEAD(to_be_deleted);
2355 struct bnx2fc_hba *hba, *next;
2356 struct fcoe_percpu_s *bg;
2357 struct task_struct *l2_thread;
2358 struct sk_buff *skb;
2359 unsigned int cpu = 0;
2360
2361 /*
2362 * NOTE: Since cnic calls register_driver routine rtnl_lock,
2363 * it will have higher precedence than bnx2fc_dev_lock.
2364 * unregister_device() cannot be called with bnx2fc_dev_lock
2365 * held.
2366 */
2367 mutex_lock(&bnx2fc_dev_lock);
2368 list_splice(&adapter_list, &to_be_deleted);
2369 INIT_LIST_HEAD(&adapter_list);
2370 adapter_count = 0;
2371 mutex_unlock(&bnx2fc_dev_lock);
2372
2373 /* Unregister with cnic */
2374 list_for_each_entry_safe(hba, next, &to_be_deleted, link) {
2375 list_del_init(&hba->link);
2376 printk(KERN_ERR PFX "MOD_EXIT:destroy hba = 0x%p, kref = %d\n",
2377 hba, atomic_read(&hba->kref.refcount));
2378 bnx2fc_ulp_stop(hba);
2379 /* unregister cnic device */
2380 if (test_and_clear_bit(BNX2FC_CNIC_REGISTERED,
2381 &hba->reg_with_cnic))
2382 hba->cnic->unregister_device(hba->cnic, CNIC_ULP_FCOE);
2383 bnx2fc_interface_destroy(hba);
2384 }
2385 cnic_unregister_driver(CNIC_ULP_FCOE);
2386
2387 /* Destroy global thread */
2388 bg = &bnx2fc_global;
2389 spin_lock_bh(&bg->fcoe_rx_list.lock);
2390 l2_thread = bg->thread;
2391 bg->thread = NULL;
2392 while ((skb = __skb_dequeue(&bg->fcoe_rx_list)) != NULL)
2393 kfree_skb(skb);
2394
2395 spin_unlock_bh(&bg->fcoe_rx_list.lock);
2396
2397 if (l2_thread)
2398 kthread_stop(l2_thread);
2399
2400 unregister_hotcpu_notifier(&bnx2fc_cpu_notifier);
2401
2402 /* Destroy per cpu threads */
2403 for_each_online_cpu(cpu) {
2404 bnx2fc_percpu_thread_destroy(cpu);
2405 }
2406
2407 destroy_workqueue(bnx2fc_wq);
2408 /*
2409 * detach from scsi transport
2410 * must happen after all destroys are done
2411 */
2412 bnx2fc_release_transport();
2413
2414 /* detach from fcoe transport */
2415 fcoe_transport_detach(&bnx2fc_transport);
2416}
2417
2418module_init(bnx2fc_mod_init);
2419module_exit(bnx2fc_mod_exit);
2420
2421static struct fc_function_template bnx2fc_transport_function = {
2422 .show_host_node_name = 1,
2423 .show_host_port_name = 1,
2424 .show_host_supported_classes = 1,
2425 .show_host_supported_fc4s = 1,
2426 .show_host_active_fc4s = 1,
2427 .show_host_maxframe_size = 1,
2428
2429 .show_host_port_id = 1,
2430 .show_host_supported_speeds = 1,
2431 .get_host_speed = fc_get_host_speed,
2432 .show_host_speed = 1,
2433 .show_host_port_type = 1,
2434 .get_host_port_state = fc_get_host_port_state,
2435 .show_host_port_state = 1,
2436 .show_host_symbolic_name = 1,
2437
2438 .dd_fcrport_size = (sizeof(struct fc_rport_libfc_priv) +
2439 sizeof(struct bnx2fc_rport)),
2440 .show_rport_maxframe_size = 1,
2441 .show_rport_supported_classes = 1,
2442
2443 .show_host_fabric_name = 1,
2444 .show_starget_node_name = 1,
2445 .show_starget_port_name = 1,
2446 .show_starget_port_id = 1,
2447 .set_rport_dev_loss_tmo = fc_set_rport_loss_tmo,
2448 .show_rport_dev_loss_tmo = 1,
2449 .get_fc_host_stats = bnx2fc_get_host_stats,
2450
2451 .issue_fc_host_lip = bnx2fc_fcoe_reset,
2452
2453 .terminate_rport_io = fc_rport_terminate_io,
2454
2455 .vport_create = bnx2fc_vport_create,
2456 .vport_delete = bnx2fc_vport_destroy,
2457 .vport_disable = bnx2fc_vport_disable,
2458};
2459
2460static struct fc_function_template bnx2fc_vport_xport_function = {
2461 .show_host_node_name = 1,
2462 .show_host_port_name = 1,
2463 .show_host_supported_classes = 1,
2464 .show_host_supported_fc4s = 1,
2465 .show_host_active_fc4s = 1,
2466 .show_host_maxframe_size = 1,
2467
2468 .show_host_port_id = 1,
2469 .show_host_supported_speeds = 1,
2470 .get_host_speed = fc_get_host_speed,
2471 .show_host_speed = 1,
2472 .show_host_port_type = 1,
2473 .get_host_port_state = fc_get_host_port_state,
2474 .show_host_port_state = 1,
2475 .show_host_symbolic_name = 1,
2476
2477 .dd_fcrport_size = (sizeof(struct fc_rport_libfc_priv) +
2478 sizeof(struct bnx2fc_rport)),
2479 .show_rport_maxframe_size = 1,
2480 .show_rport_supported_classes = 1,
2481
2482 .show_host_fabric_name = 1,
2483 .show_starget_node_name = 1,
2484 .show_starget_port_name = 1,
2485 .show_starget_port_id = 1,
2486 .set_rport_dev_loss_tmo = fc_set_rport_loss_tmo,
2487 .show_rport_dev_loss_tmo = 1,
2488 .get_fc_host_stats = fc_get_host_stats,
2489 .issue_fc_host_lip = bnx2fc_fcoe_reset,
2490 .terminate_rport_io = fc_rport_terminate_io,
2491};
2492
2493/**
2494 * scsi_host_template structure used while registering with SCSI-ml
2495 */
2496static struct scsi_host_template bnx2fc_shost_template = {
2497 .module = THIS_MODULE,
2498 .name = "Broadcom Offload FCoE Initiator",
2499 .queuecommand = bnx2fc_queuecommand,
2500 .eh_abort_handler = bnx2fc_eh_abort, /* abts */
2501 .eh_device_reset_handler = bnx2fc_eh_device_reset, /* lun reset */
2502 .eh_target_reset_handler = bnx2fc_eh_target_reset, /* tgt reset */
2503 .eh_host_reset_handler = fc_eh_host_reset,
2504 .slave_alloc = fc_slave_alloc,
2505 .change_queue_depth = fc_change_queue_depth,
2506 .change_queue_type = fc_change_queue_type,
2507 .this_id = -1,
2508 .cmd_per_lun = 3,
2509 .can_queue = (BNX2FC_MAX_OUTSTANDING_CMNDS/2),
2510 .use_clustering = ENABLE_CLUSTERING,
2511 .sg_tablesize = BNX2FC_MAX_BDS_PER_CMD,
2512 .max_sectors = 512,
2513};
2514
2515static struct libfc_function_template bnx2fc_libfc_fcn_templ = {
2516 .frame_send = bnx2fc_xmit,
2517 .elsct_send = bnx2fc_elsct_send,
2518 .fcp_abort_io = bnx2fc_abort_io,
2519 .fcp_cleanup = bnx2fc_cleanup,
2520 .rport_event_callback = bnx2fc_rport_event_handler,
2521};
2522
2523/**
2524 * bnx2fc_cnic_cb - global template of bnx2fc - cnic driver interface
2525 * structure carrying callback function pointers
2526 */
2527static struct cnic_ulp_ops bnx2fc_cnic_cb = {
2528 .owner = THIS_MODULE,
2529 .cnic_init = bnx2fc_ulp_init,
2530 .cnic_exit = bnx2fc_ulp_exit,
2531 .cnic_start = bnx2fc_ulp_start,
2532 .cnic_stop = bnx2fc_ulp_stop,
2533 .indicate_kcqes = bnx2fc_indicate_kcqe,
2534 .indicate_netevent = bnx2fc_indicate_netevent,
2535};
generated by cgit v1.2.2 (git 2.25.0) at 2025-01-17 21:19:01 -0500