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[linux-2.6-block.git] / drivers / scsi / bnx2fc / bnx2fc_fcoe.c
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853e2bd2
BG		 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
619c5cb6 24#define DRV_MODULE_RELDATE "Jun 10, 2011"
853e2bd2
BG		 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)) {
b2a554ff 390 printk(KERN_ERR PFX "bnx2fc_rcv: lport is NULL\n");
853e2bd2
BG		 391 goto err;
392 }
393
394 if (unlikely(eth_hdr(skb)->h_proto != htons(ETH_P_FCOE))) {
b2a554ff 395 printk(KERN_ERR PFX "bnx2fc_rcv: Wrong FC type frame\n");
853e2bd2
BG		 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();
853e2bd2
BG		 440 spin_lock_bh(&bg->fcoe_rx_list.lock);
441 while ((skb = __skb_dequeue(&bg->fcoe_rx_list)) != NULL) {
442 spin_unlock_bh(&bg->fcoe_rx_list.lock);
443 bnx2fc_recv_frame(skb);
444 spin_lock_bh(&bg->fcoe_rx_list.lock);
445 }
fee78712 446 __set_current_state(TASK_INTERRUPTIBLE);
853e2bd2 447 spin_unlock_bh(&bg->fcoe_rx_list.lock);
853e2bd2 448 }
fee78712 449 __set_current_state(TASK_RUNNING);
853e2bd2
BG		 450 return 0;
451}
452
453
454static void bnx2fc_recv_frame(struct sk_buff *skb)
455{
456 u32 fr_len;
457 struct fc_lport *lport;
458 struct fcoe_rcv_info *fr;
459 struct fcoe_dev_stats *stats;
460 struct fc_frame_header *fh;
461 struct fcoe_crc_eof crc_eof;
462 struct fc_frame *fp;
463 struct fc_lport *vn_port;
464 struct fcoe_port *port;
465 u8 *mac = NULL;
466 u8 *dest_mac = NULL;
467 struct fcoe_hdr *hp;
468
469 fr = fcoe_dev_from_skb(skb);
470 lport = fr->fr_dev;
471 if (unlikely(lport == NULL)) {
b2a554ff 472 printk(KERN_ERR PFX "Invalid lport struct\n");
853e2bd2
BG		 473 kfree_skb(skb);
474 return;
475 }
476
477 if (skb_is_nonlinear(skb))
478 skb_linearize(skb);
479 mac = eth_hdr(skb)->h_source;
480 dest_mac = eth_hdr(skb)->h_dest;
481
482 /* Pull the header */
483 hp = (struct fcoe_hdr *) skb_network_header(skb);
484 fh = (struct fc_frame_header *) skb_transport_header(skb);
485 skb_pull(skb, sizeof(struct fcoe_hdr));
486 fr_len = skb->len - sizeof(struct fcoe_crc_eof);
487
488 stats = per_cpu_ptr(lport->dev_stats, get_cpu());
489 stats->RxFrames++;
490 stats->RxWords += fr_len / FCOE_WORD_TO_BYTE;
491
492 fp = (struct fc_frame *)skb;
493 fc_frame_init(fp);
494 fr_dev(fp) = lport;
495 fr_sof(fp) = hp->fcoe_sof;
496 if (skb_copy_bits(skb, fr_len, &crc_eof, sizeof(crc_eof))) {
497 put_cpu();
498 kfree_skb(skb);
499 return;
500 }
501 fr_eof(fp) = crc_eof.fcoe_eof;
502 fr_crc(fp) = crc_eof.fcoe_crc32;
503 if (pskb_trim(skb, fr_len)) {
504 put_cpu();
505 kfree_skb(skb);
506 return;
507 }
508
509 fh = fc_frame_header_get(fp);
510
511 vn_port = fc_vport_id_lookup(lport, ntoh24(fh->fh_d_id));
512 if (vn_port) {
513 port = lport_priv(vn_port);
514 if (compare_ether_addr(port->data_src_addr, dest_mac)
515 != 0) {
516 BNX2FC_HBA_DBG(lport, "fpma mismatch\n");
517 put_cpu();
518 kfree_skb(skb);
519 return;
520 }
521 }
522 if (fh->fh_r_ctl == FC_RCTL_DD_SOL_DATA &&
523 fh->fh_type == FC_TYPE_FCP) {
524 /* Drop FCP data. We dont this in L2 path */
525 put_cpu();
526 kfree_skb(skb);
527 return;
528 }
529 if (fh->fh_r_ctl == FC_RCTL_ELS_REQ &&
530 fh->fh_type == FC_TYPE_ELS) {
531 switch (fc_frame_payload_op(fp)) {
532 case ELS_LOGO:
533 if (ntoh24(fh->fh_s_id) == FC_FID_FLOGI) {
534 /* drop non-FIP LOGO */
535 put_cpu();
536 kfree_skb(skb);
537 return;
538 }
539 break;
540 }
541 }
542 if (le32_to_cpu(fr_crc(fp)) !=
543 ~crc32(~0, skb->data, fr_len)) {
544 if (stats->InvalidCRCCount < 5)
545 printk(KERN_WARNING PFX "dropping frame with "
546 "CRC error\n");
547 stats->InvalidCRCCount++;
548 put_cpu();
549 kfree_skb(skb);
550 return;
551 }
552 put_cpu();
553 fc_exch_recv(lport, fp);
554}
555
556/**
557 * bnx2fc_percpu_io_thread - thread per cpu for ios
558 *
559 * @arg: ptr to bnx2fc_percpu_info structure
560 */
561int bnx2fc_percpu_io_thread(void *arg)
562{
563 struct bnx2fc_percpu_s *p = arg;
564 struct bnx2fc_work *work, *tmp;
565 LIST_HEAD(work_list);
566
567 set_user_nice(current, -20);
568 set_current_state(TASK_INTERRUPTIBLE);
569 while (!kthread_should_stop()) {
570 schedule();
853e2bd2
BG		 571 spin_lock_bh(&p->fp_work_lock);
572 while (!list_empty(&p->work_list)) {
573 list_splice_init(&p->work_list, &work_list);
574 spin_unlock_bh(&p->fp_work_lock);
575
576 list_for_each_entry_safe(work, tmp, &work_list, list) {
577 list_del_init(&work->list);
578 bnx2fc_process_cq_compl(work->tgt, work->wqe);
579 kfree(work);
580 }
581
582 spin_lock_bh(&p->fp_work_lock);
583 }
fee78712 584 __set_current_state(TASK_INTERRUPTIBLE);
853e2bd2 585 spin_unlock_bh(&p->fp_work_lock);
853e2bd2 586 }
fee78712 587 __set_current_state(TASK_RUNNING);
853e2bd2
BG		 588
589 return 0;
590}
591
592static struct fc_host_statistics *bnx2fc_get_host_stats(struct Scsi_Host *shost)
593{
594 struct fc_host_statistics *bnx2fc_stats;
595 struct fc_lport *lport = shost_priv(shost);
596 struct fcoe_port *port = lport_priv(lport);
597 struct bnx2fc_hba *hba = port->priv;
598 struct fcoe_statistics_params *fw_stats;
599 int rc = 0;
600
601 fw_stats = (struct fcoe_statistics_params *)hba->stats_buffer;
602 if (!fw_stats)
603 return NULL;
604
605 bnx2fc_stats = fc_get_host_stats(shost);
606
607 init_completion(&hba->stat_req_done);
608 if (bnx2fc_send_stat_req(hba))
609 return bnx2fc_stats;
610 rc = wait_for_completion_timeout(&hba->stat_req_done, (2 * HZ));
611 if (!rc) {
612 BNX2FC_HBA_DBG(lport, "FW stat req timed out\n");
613 return bnx2fc_stats;
614 }
619c5cb6 615 bnx2fc_stats->invalid_crc_count += fw_stats->rx_stat2.fc_crc_cnt;
853e2bd2
BG		 616 bnx2fc_stats->tx_frames += fw_stats->tx_stat.fcoe_tx_pkt_cnt;
617 bnx2fc_stats->tx_words += (fw_stats->tx_stat.fcoe_tx_byte_cnt) / 4;
618 bnx2fc_stats->rx_frames += fw_stats->rx_stat0.fcoe_rx_pkt_cnt;
619 bnx2fc_stats->rx_words += (fw_stats->rx_stat0.fcoe_rx_byte_cnt) / 4;
620
621 bnx2fc_stats->dumped_frames = 0;
622 bnx2fc_stats->lip_count = 0;
623 bnx2fc_stats->nos_count = 0;
624 bnx2fc_stats->loss_of_sync_count = 0;
625 bnx2fc_stats->loss_of_signal_count = 0;
626 bnx2fc_stats->prim_seq_protocol_err_count = 0;
627
628 return bnx2fc_stats;
629}
630
631static int bnx2fc_shost_config(struct fc_lport *lport, struct device *dev)
632{
633 struct fcoe_port *port = lport_priv(lport);
634 struct bnx2fc_hba *hba = port->priv;
635 struct Scsi_Host *shost = lport->host;
636 int rc = 0;
637
638 shost->max_cmd_len = BNX2FC_MAX_CMD_LEN;
639 shost->max_lun = BNX2FC_MAX_LUN;
640 shost->max_id = BNX2FC_MAX_FCP_TGT;
641 shost->max_channel = 0;
642 if (lport->vport)
643 shost->transportt = bnx2fc_vport_xport_template;
644 else
645 shost->transportt = bnx2fc_transport_template;
646
647 /* Add the new host to SCSI-ml */
648 rc = scsi_add_host(lport->host, dev);
649 if (rc) {
650 printk(KERN_ERR PFX "Error on scsi_add_host\n");
651 return rc;
652 }
653 if (!lport->vport)
654 fc_host_max_npiv_vports(lport->host) = USHRT_MAX;
655 sprintf(fc_host_symbolic_name(lport->host), "%s v%s over %s",
656 BNX2FC_NAME, BNX2FC_VERSION,
657 hba->netdev->name);
658
659 return 0;
660}
661
853e2bd2
BG		 662static void bnx2fc_link_speed_update(struct fc_lport *lport)
663{
664 struct fcoe_port *port = lport_priv(lport);
665 struct bnx2fc_hba *hba = port->priv;
666 struct net_device *netdev = hba->netdev;
8ae6daca 667 struct ethtool_cmd ecmd;
853e2bd2
BG		 668
669 if (!dev_ethtool_get_settings(netdev, &ecmd)) {
670 lport->link_supported_speeds &=
671 ~(FC_PORTSPEED_1GBIT | FC_PORTSPEED_10GBIT);
672 if (ecmd.supported & (SUPPORTED_1000baseT_Half |
673 SUPPORTED_1000baseT_Full))
674 lport->link_supported_speeds |= FC_PORTSPEED_1GBIT;
675 if (ecmd.supported & SUPPORTED_10000baseT_Full)
676 lport->link_supported_speeds |= FC_PORTSPEED_10GBIT;
677
8ae6daca
DD		 678 switch (ethtool_cmd_speed(&ecmd)) {
679 case SPEED_1000:
853e2bd2 680 lport->link_speed = FC_PORTSPEED_1GBIT;
8ae6daca 681 break;
a4dc08ce
BPG		 682 case SPEED_2500:
683 lport->link_speed = FC_PORTSPEED_2GBIT;
684 break;
8ae6daca 685 case SPEED_10000:
853e2bd2 686 lport->link_speed = FC_PORTSPEED_10GBIT;
8ae6daca
DD		 687 break;
688 }
853e2bd2 689 }
853e2bd2
BG		 690}
691static int bnx2fc_link_ok(struct fc_lport *lport)
692{
693 struct fcoe_port *port = lport_priv(lport);
694 struct bnx2fc_hba *hba = port->priv;
695 struct net_device *dev = hba->phys_dev;
696 int rc = 0;
697
698 if ((dev->flags & IFF_UP) && netif_carrier_ok(dev))
699 clear_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
700 else {
701 set_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
702 rc = -1;
703 }
704 return rc;
705}
706
707/**
708 * bnx2fc_get_link_state - get network link state
709 *
710 * @hba: adapter instance pointer
711 *
712 * updates adapter structure flag based on netdev state
713 */
714void bnx2fc_get_link_state(struct bnx2fc_hba *hba)
715{
716 if (test_bit(__LINK_STATE_NOCARRIER, &hba->netdev->state))
717 set_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
718 else
719 clear_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
720}
721
722static int bnx2fc_net_config(struct fc_lport *lport)
723{
724 struct bnx2fc_hba *hba;
725 struct fcoe_port *port;
726 u64 wwnn, wwpn;
727
728 port = lport_priv(lport);
729 hba = port->priv;
730
731 /* require support for get_pauseparam ethtool op. */
732 if (!hba->phys_dev->ethtool_ops ||
733 !hba->phys_dev->ethtool_ops->get_pauseparam)
734 return -EOPNOTSUPP;
735
1294bfe6 736 if (fc_set_mfs(lport, BNX2FC_MFS))
853e2bd2
BG		 737 return -EINVAL;
738
739 skb_queue_head_init(&port->fcoe_pending_queue);
740 port->fcoe_pending_queue_active = 0;
741 setup_timer(&port->timer, fcoe_queue_timer, (unsigned long) lport);
742
743 bnx2fc_link_speed_update(lport);
744
745 if (!lport->vport) {
746 wwnn = fcoe_wwn_from_mac(hba->ctlr.ctl_src_addr, 1, 0);
747 BNX2FC_HBA_DBG(lport, "WWNN = 0x%llx\n", wwnn);
748 fc_set_wwnn(lport, wwnn);
749
750 wwpn = fcoe_wwn_from_mac(hba->ctlr.ctl_src_addr, 2, 0);
751 BNX2FC_HBA_DBG(lport, "WWPN = 0x%llx\n", wwpn);
752 fc_set_wwpn(lport, wwpn);
753 }
754
755 return 0;
756}
757
758static void bnx2fc_destroy_timer(unsigned long data)
759{
760 struct bnx2fc_hba *hba = (struct bnx2fc_hba *)data;
761
762 BNX2FC_HBA_DBG(hba->ctlr.lp, "ERROR:bnx2fc_destroy_timer - "
763 "Destroy compl not received!!\n");
764 hba->flags |= BNX2FC_FLAG_DESTROY_CMPL;
765 wake_up_interruptible(&hba->destroy_wait);
766}
767
768/**
769 * bnx2fc_indicate_netevent - Generic netdev event handler
770 *
771 * @context: adapter structure pointer
772 * @event: event type
415199f2 773 * @vlan_id: vlan id - associated vlan id with this event
853e2bd2
BG		 774 *
775 * Handles NETDEV_UP, NETDEV_DOWN, NETDEV_GOING_DOWN,NETDEV_CHANGE and
776 * NETDEV_CHANGE_MTU events
777 */
415199f2
MC		 778static void bnx2fc_indicate_netevent(void *context, unsigned long event,
779 u16 vlan_id)
853e2bd2
BG		 780{
781 struct bnx2fc_hba *hba = (struct bnx2fc_hba *)context;
782 struct fc_lport *lport = hba->ctlr.lp;
783 struct fc_lport *vport;
784 u32 link_possible = 1;
785
415199f2
MC		 786 /* Ignore vlans for now */
787 if (vlan_id != 0)
788 return;
789
853e2bd2
BG		 790 if (!test_bit(BNX2FC_CREATE_DONE, &hba->init_done)) {
791 BNX2FC_MISC_DBG("driver not ready. event=%s %ld\n",
792 hba->netdev->name, event);
793 return;
794 }
795
796 /*
797 * ASSUMPTION:
798 * indicate_netevent cannot be called from cnic unless bnx2fc
799 * does register_device
800 */
801 BUG_ON(!lport);
802
803 BNX2FC_HBA_DBG(lport, "enter netevent handler - event=%s %ld\n",
804 hba->netdev->name, event);
805
806 switch (event) {
807 case NETDEV_UP:
808 BNX2FC_HBA_DBG(lport, "Port up, adapter_state = %ld\n",
809 hba->adapter_state);
810 if (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state))
811 printk(KERN_ERR "indicate_netevent: "\
812 "adapter is not UP!!\n");
853e2bd2
BG		 813 break;
814
815 case NETDEV_DOWN:
816 BNX2FC_HBA_DBG(lport, "Port down\n");
817 clear_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state);
818 clear_bit(ADAPTER_STATE_UP, &hba->adapter_state);
819 link_possible = 0;
820 break;
821
822 case NETDEV_GOING_DOWN:
823 BNX2FC_HBA_DBG(lport, "Port going down\n");
824 set_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state);
825 link_possible = 0;
826 break;
827
828 case NETDEV_CHANGE:
829 BNX2FC_HBA_DBG(lport, "NETDEV_CHANGE\n");
830 break;
831
832 default:
833 printk(KERN_ERR PFX "Unkonwn netevent %ld", event);
834 return;
835 }
836
837 bnx2fc_link_speed_update(lport);
838
839 if (link_possible && !bnx2fc_link_ok(lport)) {
840 printk(KERN_ERR "indicate_netevent: call ctlr_link_up\n");
841 fcoe_ctlr_link_up(&hba->ctlr);
842 } else {
843 printk(KERN_ERR "indicate_netevent: call ctlr_link_down\n");
844 if (fcoe_ctlr_link_down(&hba->ctlr)) {
845 clear_bit(ADAPTER_STATE_READY, &hba->adapter_state);
846 mutex_lock(&lport->lp_mutex);
847 list_for_each_entry(vport, &lport->vports, list)
848 fc_host_port_type(vport->host) =
849 FC_PORTTYPE_UNKNOWN;
850 mutex_unlock(&lport->lp_mutex);
851 fc_host_port_type(lport->host) = FC_PORTTYPE_UNKNOWN;
852 per_cpu_ptr(lport->dev_stats,
853 get_cpu())->LinkFailureCount++;
854 put_cpu();
855 fcoe_clean_pending_queue(lport);
856
857 init_waitqueue_head(&hba->shutdown_wait);
858 BNX2FC_HBA_DBG(lport, "indicate_netevent "
859 "num_ofld_sess = %d\n",
860 hba->num_ofld_sess);
861 hba->wait_for_link_down = 1;
862 BNX2FC_HBA_DBG(lport, "waiting for uploads to "
863 "compl proc = %s\n",
864 current->comm);
865 wait_event_interruptible(hba->shutdown_wait,
866 (hba->num_ofld_sess == 0));
867 BNX2FC_HBA_DBG(lport, "wakeup - num_ofld_sess = %d\n",
868 hba->num_ofld_sess);
869 hba->wait_for_link_down = 0;
870
871 if (signal_pending(current))
872 flush_signals(current);
873 }
874 }
875}
876
877static int bnx2fc_libfc_config(struct fc_lport *lport)
878{
879
880 /* Set the function pointers set by bnx2fc driver */
881 memcpy(&lport->tt, &bnx2fc_libfc_fcn_templ,
882 sizeof(struct libfc_function_template));
883 fc_elsct_init(lport);
884 fc_exch_init(lport);
885 fc_rport_init(lport);
886 fc_disc_init(lport);
887 return 0;
888}
889
890static int bnx2fc_em_config(struct fc_lport *lport)
891{
892 struct fcoe_port *port = lport_priv(lport);
893 struct bnx2fc_hba *hba = port->priv;
894
895 if (!fc_exch_mgr_alloc(lport, FC_CLASS_3, FCOE_MIN_XID,
896 FCOE_MAX_XID, NULL)) {
897 printk(KERN_ERR PFX "em_config:fc_exch_mgr_alloc failed\n");
898 return -ENOMEM;
899 }
900
901 hba->cmd_mgr = bnx2fc_cmd_mgr_alloc(hba, BNX2FC_MIN_XID,
902 BNX2FC_MAX_XID);
903
904 if (!hba->cmd_mgr) {
905 printk(KERN_ERR PFX "em_config:bnx2fc_cmd_mgr_alloc failed\n");
906 fc_exch_mgr_free(lport);
907 return -ENOMEM;
908 }
909 return 0;
910}
911
912static int bnx2fc_lport_config(struct fc_lport *lport)
913{
914 lport->link_up = 0;
915 lport->qfull = 0;
916 lport->max_retry_count = 3;
917 lport->max_rport_retry_count = 3;
918 lport->e_d_tov = 2 * 1000;
919 lport->r_a_tov = 10 * 1000;
920
921 /* REVISIT: enable when supporting tape devices
922 lport->service_params = (FCP_SPPF_INIT_FCN | FCP_SPPF_RD_XRDY_DIS |
923 FCP_SPPF_RETRY | FCP_SPPF_CONF_COMPL);
924 */
925 lport->service_params = (FCP_SPPF_INIT_FCN | FCP_SPPF_RD_XRDY_DIS);
926 lport->does_npiv = 1;
927
928 memset(&lport->rnid_gen, 0, sizeof(struct fc_els_rnid_gen));
929 lport->rnid_gen.rnid_atype = BNX2FC_RNID_HBA;
930
931 /* alloc stats structure */
932 if (fc_lport_init_stats(lport))
933 return -ENOMEM;
934
935 /* Finish fc_lport configuration */
936 fc_lport_config(lport);
937
938 return 0;
939}
940
941/**
942 * bnx2fc_fip_recv - handle a received FIP frame.
943 *
944 * @skb: the received skb
945 * @dev: associated &net_device
946 * @ptype: the &packet_type structure which was used to register this handler.
947 * @orig_dev: original receive &net_device, in case @ dev is a bond.
948 *
949 * Returns: 0 for success
950 */
951static int bnx2fc_fip_recv(struct sk_buff *skb, struct net_device *dev,
952 struct packet_type *ptype,
953 struct net_device *orig_dev)
954{
955 struct bnx2fc_hba *hba;
956 hba = container_of(ptype, struct bnx2fc_hba, fip_packet_type);
957 fcoe_ctlr_recv(&hba->ctlr, skb);
958 return 0;
959}
960
961/**
962 * bnx2fc_update_src_mac - Update Ethernet MAC filters.
963 *
964 * @fip: FCoE controller.
965 * @old: Unicast MAC address to delete if the MAC is non-zero.
966 * @new: Unicast MAC address to add.
967 *
968 * Remove any previously-set unicast MAC filter.
969 * Add secondary FCoE MAC address filter for our OUI.
970 */
971static void bnx2fc_update_src_mac(struct fc_lport *lport, u8 *addr)
972{
973 struct fcoe_port *port = lport_priv(lport);
974
975 memcpy(port->data_src_addr, addr, ETH_ALEN);
976}
977
978/**
979 * bnx2fc_get_src_mac - return the ethernet source address for an lport
980 *
981 * @lport: libfc port
982 */
983static u8 *bnx2fc_get_src_mac(struct fc_lport *lport)
984{
985 struct fcoe_port *port;
986
987 port = (struct fcoe_port *)lport_priv(lport);
988 return port->data_src_addr;
989}
990
991/**
992 * bnx2fc_fip_send - send an Ethernet-encapsulated FIP frame.
993 *
994 * @fip: FCoE controller.
995 * @skb: FIP Packet.
996 */
997static void bnx2fc_fip_send(struct fcoe_ctlr *fip, struct sk_buff *skb)
998{
999 skb->dev = bnx2fc_from_ctlr(fip)->netdev;
1000 dev_queue_xmit(skb);
1001}
1002
1003static int bnx2fc_vport_create(struct fc_vport *vport, bool disabled)
1004{
1005 struct Scsi_Host *shost = vport_to_shost(vport);
1006 struct fc_lport *n_port = shost_priv(shost);
1007 struct fcoe_port *port = lport_priv(n_port);
1008 struct bnx2fc_hba *hba = port->priv;
1009 struct net_device *netdev = hba->netdev;
1010 struct fc_lport *vn_port;
1011
1012 if (!test_bit(BNX2FC_FW_INIT_DONE, &hba->init_done)) {
1013 printk(KERN_ERR PFX "vn ports cannot be created on"
1014 "this hba\n");
1015 return -EIO;
1016 }
1017 mutex_lock(&bnx2fc_dev_lock);
1018 vn_port = bnx2fc_if_create(hba, &vport->dev, 1);
1019 mutex_unlock(&bnx2fc_dev_lock);
1020
1021 if (IS_ERR(vn_port)) {
1022 printk(KERN_ERR PFX "bnx2fc_vport_create (%s) failed\n",
1023 netdev->name);
1024 return -EIO;
1025 }
1026
1027 if (disabled) {
1028 fc_vport_set_state(vport, FC_VPORT_DISABLED);
1029 } else {
1030 vn_port->boot_time = jiffies;
1031 fc_lport_init(vn_port);
1032 fc_fabric_login(vn_port);
1033 fc_vport_setlink(vn_port);
1034 }
1035 return 0;
1036}
1037
1038static int bnx2fc_vport_destroy(struct fc_vport *vport)
1039{
1040 struct Scsi_Host *shost = vport_to_shost(vport);
1041 struct fc_lport *n_port = shost_priv(shost);
1042 struct fc_lport *vn_port = vport->dd_data;
1043 struct fcoe_port *port = lport_priv(vn_port);
1044
1045 mutex_lock(&n_port->lp_mutex);
1046 list_del(&vn_port->list);
1047 mutex_unlock(&n_port->lp_mutex);
1048 queue_work(bnx2fc_wq, &port->destroy_work);
1049 return 0;
1050}
1051
1052static int bnx2fc_vport_disable(struct fc_vport *vport, bool disable)
1053{
1054 struct fc_lport *lport = vport->dd_data;
1055
1056 if (disable) {
1057 fc_vport_set_state(vport, FC_VPORT_DISABLED);
1058 fc_fabric_logoff(lport);
1059 } else {
1060 lport->boot_time = jiffies;
1061 fc_fabric_login(lport);
1062 fc_vport_setlink(lport);
1063 }
1064 return 0;
1065}
1066
1067
1068static int bnx2fc_netdev_setup(struct bnx2fc_hba *hba)
1069{
1070 struct net_device *netdev = hba->netdev;
1071 struct net_device *physdev = hba->phys_dev;
1072 struct netdev_hw_addr *ha;
1073 int sel_san_mac = 0;
1074
853e2bd2
BG		 1075 /* setup Source MAC Address */
1076 rcu_read_lock();
1077 for_each_dev_addr(physdev, ha) {
1078 BNX2FC_MISC_DBG("net_config: ha->type = %d, fip_mac = ",
1079 ha->type);
1080 printk(KERN_INFO "%2x:%2x:%2x:%2x:%2x:%2x\n", ha->addr[0],
1081 ha->addr[1], ha->addr[2], ha->addr[3],
1082 ha->addr[4], ha->addr[5]);
1083
1084 if ((ha->type == NETDEV_HW_ADDR_T_SAN) &&
1085 (is_valid_ether_addr(ha->addr))) {
1086 memcpy(hba->ctlr.ctl_src_addr, ha->addr, ETH_ALEN);
1087 sel_san_mac = 1;
1088 BNX2FC_MISC_DBG("Found SAN MAC\n");
1089 }
1090 }
1091 rcu_read_unlock();
1092
1093 if (!sel_san_mac)
1094 return -ENODEV;
1095
1096 hba->fip_packet_type.func = bnx2fc_fip_recv;
1097 hba->fip_packet_type.type = htons(ETH_P_FIP);
1098 hba->fip_packet_type.dev = netdev;
1099 dev_add_pack(&hba->fip_packet_type);
1100
1101 hba->fcoe_packet_type.func = bnx2fc_rcv;
1102 hba->fcoe_packet_type.type = __constant_htons(ETH_P_FCOE);
1103 hba->fcoe_packet_type.dev = netdev;
1104 dev_add_pack(&hba->fcoe_packet_type);
1105
1106 return 0;
1107}
1108
1109static int bnx2fc_attach_transport(void)
1110{
1111 bnx2fc_transport_template =
1112 fc_attach_transport(&bnx2fc_transport_function);
1113
1114 if (bnx2fc_transport_template == NULL) {
1115 printk(KERN_ERR PFX "Failed to attach FC transport\n");
1116 return -ENODEV;
1117 }
1118
1119 bnx2fc_vport_xport_template =
1120 fc_attach_transport(&bnx2fc_vport_xport_function);
1121 if (bnx2fc_vport_xport_template == NULL) {
1122 printk(KERN_ERR PFX
1123 "Failed to attach FC transport for vport\n");
1124 fc_release_transport(bnx2fc_transport_template);
1125 bnx2fc_transport_template = NULL;
1126 return -ENODEV;
1127 }
1128 return 0;
1129}
1130static void bnx2fc_release_transport(void)
1131{
1132 fc_release_transport(bnx2fc_transport_template);
1133 fc_release_transport(bnx2fc_vport_xport_template);
1134 bnx2fc_transport_template = NULL;
1135 bnx2fc_vport_xport_template = NULL;
1136}
1137
1138static void bnx2fc_interface_release(struct kref *kref)
1139{
1140 struct bnx2fc_hba *hba;
1141 struct net_device *netdev;
1142 struct net_device *phys_dev;
1143
1144 hba = container_of(kref, struct bnx2fc_hba, kref);
068bdce4 1145 BNX2FC_MISC_DBG("Interface is being released\n");
853e2bd2
BG		 1146
1147 netdev = hba->netdev;
1148 phys_dev = hba->phys_dev;
1149
1150 /* tear-down FIP controller */
1151 if (test_and_clear_bit(BNX2FC_CTLR_INIT_DONE, &hba->init_done))
1152 fcoe_ctlr_destroy(&hba->ctlr);
1153
1154 /* Free the command manager */
1155 if (hba->cmd_mgr) {
1156 bnx2fc_cmd_mgr_free(hba->cmd_mgr);
1157 hba->cmd_mgr = NULL;
1158 }
1159 dev_put(netdev);
1160 module_put(THIS_MODULE);
1161}
1162
1163static inline void bnx2fc_interface_get(struct bnx2fc_hba *hba)
1164{
1165 kref_get(&hba->kref);
1166}
1167
1168static inline void bnx2fc_interface_put(struct bnx2fc_hba *hba)
1169{
1170 kref_put(&hba->kref, bnx2fc_interface_release);
1171}
1172static void bnx2fc_interface_destroy(struct bnx2fc_hba *hba)
1173{
1174 bnx2fc_unbind_pcidev(hba);
1175 kfree(hba);
1176}
1177
1178/**
1179 * bnx2fc_interface_create - create a new fcoe instance
1180 *
1181 * @cnic: pointer to cnic device
1182 *
1183 * Creates a new FCoE instance on the given device which include allocating
1184 * hba structure, scsi_host and lport structures.
1185 */
1186static struct bnx2fc_hba *bnx2fc_interface_create(struct cnic_dev *cnic)
1187{
1188 struct bnx2fc_hba *hba;
1189 int rc;
1190
1191 hba = kzalloc(sizeof(*hba), GFP_KERNEL);
1192 if (!hba) {
1193 printk(KERN_ERR PFX "Unable to allocate hba structure\n");
1194 return NULL;
1195 }
1196 spin_lock_init(&hba->hba_lock);
1197 mutex_init(&hba->hba_mutex);
1198
1199 hba->cnic = cnic;
1200 rc = bnx2fc_bind_pcidev(hba);
1201 if (rc)
1202 goto bind_err;
1203 hba->phys_dev = cnic->netdev;
1204 /* will get overwritten after we do vlan discovery */
1205 hba->netdev = hba->phys_dev;
1206
1207 init_waitqueue_head(&hba->shutdown_wait);
1208 init_waitqueue_head(&hba->destroy_wait);
1209
1210 return hba;
1211bind_err:
1212 printk(KERN_ERR PFX "create_interface: bind error\n");
1213 kfree(hba);
1214 return NULL;
1215}
1216
1217static int bnx2fc_interface_setup(struct bnx2fc_hba *hba,
1218 enum fip_state fip_mode)
1219{
1220 int rc = 0;
1221 struct net_device *netdev = hba->netdev;
1222 struct fcoe_ctlr *fip = &hba->ctlr;
1223
1224 dev_hold(netdev);
1225 kref_init(&hba->kref);
1226
1227 hba->flags = 0;
1228
1229 /* Initialize FIP */
1230 memset(fip, 0, sizeof(*fip));
1231 fcoe_ctlr_init(fip, fip_mode);
1232 hba->ctlr.send = bnx2fc_fip_send;
1233 hba->ctlr.update_mac = bnx2fc_update_src_mac;
1234 hba->ctlr.get_src_addr = bnx2fc_get_src_mac;
1235 set_bit(BNX2FC_CTLR_INIT_DONE, &hba->init_done);
1236
d36b3279 1237 INIT_LIST_HEAD(&hba->vports);
853e2bd2
BG		 1238 rc = bnx2fc_netdev_setup(hba);
1239 if (rc)
1240 goto setup_err;
1241
1242 hba->next_conn_id = 0;
1243
1244 memset(hba->tgt_ofld_list, 0, sizeof(hba->tgt_ofld_list));
1245 hba->num_ofld_sess = 0;
1246
1247 return 0;
1248
1249setup_err:
1250 fcoe_ctlr_destroy(&hba->ctlr);
1251 dev_put(netdev);
1252 bnx2fc_interface_put(hba);
1253 return rc;
1254}
1255
1256/**
1257 * bnx2fc_if_create - Create FCoE instance on a given interface
1258 *
1259 * @hba: FCoE interface to create a local port on
1260 * @parent: Device pointer to be the parent in sysfs for the SCSI host
1261 * @npiv: Indicates if the port is vport or not
1262 *
1263 * Creates a fc_lport instance and a Scsi_Host instance and configure them.
1264 *
1265 * Returns: Allocated fc_lport or an error pointer
1266 */
1267static struct fc_lport *bnx2fc_if_create(struct bnx2fc_hba *hba,
1268 struct device *parent, int npiv)
1269{
134a4e27 1270 struct fc_lport *lport, *n_port;
853e2bd2
BG		 1271 struct fcoe_port *port;
1272 struct Scsi_Host *shost;
1273 struct fc_vport *vport = dev_to_vport(parent);
d36b3279 1274 struct bnx2fc_lport *blport;
853e2bd2
BG		 1275 int rc = 0;
1276
d36b3279
BPG		 1277 blport = kzalloc(sizeof(struct bnx2fc_lport), GFP_KERNEL);
1278 if (!blport) {
1279 BNX2FC_HBA_DBG(hba->ctlr.lp, "Unable to alloc bnx2fc_lport\n");
1280 return NULL;
1281 }
1282
853e2bd2 1283 /* Allocate Scsi_Host structure */
134a4e27
VD		 1284 if (!npiv)
1285 lport = libfc_host_alloc(&bnx2fc_shost_template, sizeof(*port));
1286 else
1287 lport = libfc_vport_create(vport, sizeof(*port));
853e2bd2
BG		 1288
1289 if (!lport) {
1290 printk(KERN_ERR PFX "could not allocate scsi host structure\n");
d36b3279 1291 goto free_blport;
853e2bd2
BG		 1292 }
1293 shost = lport->host;
1294 port = lport_priv(lport);
1295 port->lport = lport;
1296 port->priv = hba;
1297 INIT_WORK(&port->destroy_work, bnx2fc_destroy_work);
1298
1299 /* Configure fcoe_port */
1300 rc = bnx2fc_lport_config(lport);
1301 if (rc)
1302 goto lp_config_err;
1303
1304 if (npiv) {
853e2bd2
BG		 1305 printk(KERN_ERR PFX "Setting vport names, 0x%llX 0x%llX\n",
1306 vport->node_name, vport->port_name);
1307 fc_set_wwnn(lport, vport->node_name);
1308 fc_set_wwpn(lport, vport->port_name);
1309 }
1310 /* Configure netdev and networking properties of the lport */
1311 rc = bnx2fc_net_config(lport);
1312 if (rc) {
1313 printk(KERN_ERR PFX "Error on bnx2fc_net_config\n");
1314 goto lp_config_err;
1315 }
1316
1317 rc = bnx2fc_shost_config(lport, parent);
1318 if (rc) {
1319 printk(KERN_ERR PFX "Couldnt configure shost for %s\n",
1320 hba->netdev->name);
1321 goto lp_config_err;
1322 }
1323
1324 /* Initialize the libfc library */
1325 rc = bnx2fc_libfc_config(lport);
1326 if (rc) {
1327 printk(KERN_ERR PFX "Couldnt configure libfc\n");
1328 goto shost_err;
1329 }
1330 fc_host_port_type(lport->host) = FC_PORTTYPE_UNKNOWN;
1331
1332 /* Allocate exchange manager */
134a4e27 1333 if (!npiv)
853e2bd2 1334 rc = bnx2fc_em_config(lport);
134a4e27
VD		 1335 else {
1336 shost = vport_to_shost(vport);
1337 n_port = shost_priv(shost);
1338 rc = fc_exch_mgr_list_clone(n_port, lport);
1339 }
1340
1341 if (rc) {
1342 printk(KERN_ERR PFX "Error on bnx2fc_em_config\n");
1343 goto shost_err;
853e2bd2
BG		 1344 }
1345
1346 bnx2fc_interface_get(hba);
d36b3279
BPG		 1347
1348 spin_lock_bh(&hba->hba_lock);
1349 blport->lport = lport;
1350 list_add_tail(&blport->list, &hba->vports);
1351 spin_unlock_bh(&hba->hba_lock);
1352
853e2bd2
BG		 1353 return lport;
1354
1355shost_err:
1356 scsi_remove_host(shost);
1357lp_config_err:
1358 scsi_host_put(lport->host);
d36b3279
BPG		 1359free_blport:
1360 kfree(blport);
853e2bd2
BG		 1361 return NULL;
1362}
1363
1364static void bnx2fc_netdev_cleanup(struct bnx2fc_hba *hba)
1365{
1366 /* Dont listen for Ethernet packets anymore */
1367 __dev_remove_pack(&hba->fcoe_packet_type);
1368 __dev_remove_pack(&hba->fip_packet_type);
1369 synchronize_net();
1370}
1371
1372static void bnx2fc_if_destroy(struct fc_lport *lport)
1373{
1374 struct fcoe_port *port = lport_priv(lport);
1375 struct bnx2fc_hba *hba = port->priv;
d36b3279 1376 struct bnx2fc_lport *blport, *tmp;
853e2bd2
BG		 1377
1378 BNX2FC_HBA_DBG(hba->ctlr.lp, "ENTERED bnx2fc_if_destroy\n");
1379 /* Stop the transmit retry timer */
1380 del_timer_sync(&port->timer);
1381
1382 /* Free existing transmit skbs */
1383 fcoe_clean_pending_queue(lport);
1384
853e2bd2
BG		 1385 /* Free queued packets for the receive thread */
1386 bnx2fc_clean_rx_queue(lport);
1387
1388 /* Detach from scsi-ml */
1389 fc_remove_host(lport->host);
1390 scsi_remove_host(lport->host);
1391
1392 /*
1393 * Note that only the physical lport will have the exchange manager.
1394 * for vports, this function is NOP
1395 */
1396 fc_exch_mgr_free(lport);
1397
1398 /* Free memory used by statistical counters */
1399 fc_lport_free_stats(lport);
1400
d36b3279
BPG		 1401 spin_lock_bh(&hba->hba_lock);
1402 list_for_each_entry_safe(blport, tmp, &hba->vports, list) {
1403 if (blport->lport == lport) {
1404 list_del(&blport->list);
1405 kfree(blport);
1406 }
1407 }
1408 spin_unlock_bh(&hba->hba_lock);
1409
853e2bd2
BG		 1410 /* Release Scsi_Host */
1411 scsi_host_put(lport->host);
0117ddb0
NNS		 1412
1413 bnx2fc_interface_put(hba);
853e2bd2
BG		 1414}
1415
1416/**
1417 * bnx2fc_destroy - Destroy a bnx2fc FCoE interface
1418 *
1419 * @buffer: The name of the Ethernet interface to be destroyed
1420 * @kp: The associated kernel parameter
1421 *
1422 * Called from sysfs.
1423 *
1424 * Returns: 0 for success
1425 */
1426static int bnx2fc_destroy(struct net_device *netdev)
1427{
1428 struct bnx2fc_hba *hba = NULL;
1429 struct net_device *phys_dev;
1430 int rc = 0;
1431
6702ca1d 1432 rtnl_lock();
853e2bd2
BG		 1433
1434 mutex_lock(&bnx2fc_dev_lock);
853e2bd2
BG		 1435 /* obtain physical netdev */
1436 if (netdev->priv_flags & IFF_802_1Q_VLAN)
1437 phys_dev = vlan_dev_real_dev(netdev);
1438 else {
1439 printk(KERN_ERR PFX "Not a vlan device\n");
1440 rc = -ENODEV;
1441 goto netdev_err;
1442 }
1443
1444 hba = bnx2fc_hba_lookup(phys_dev);
1445 if (!hba || !hba->ctlr.lp) {
1446 rc = -ENODEV;
1447 printk(KERN_ERR PFX "bnx2fc_destroy: hba or lport not found\n");
1448 goto netdev_err;
1449 }
1450
1451 if (!test_bit(BNX2FC_CREATE_DONE, &hba->init_done)) {
1452 printk(KERN_ERR PFX "bnx2fc_destroy: Create not called\n");
1453 goto netdev_err;
1454 }
1455
1456 bnx2fc_netdev_cleanup(hba);
1457
1458 bnx2fc_stop(hba);
1459
1460 bnx2fc_if_destroy(hba->ctlr.lp);
1461
1462 destroy_workqueue(hba->timer_work_queue);
1463
1464 if (test_bit(BNX2FC_FW_INIT_DONE, &hba->init_done))
1465 bnx2fc_fw_destroy(hba);
1466
1467 clear_bit(BNX2FC_CREATE_DONE, &hba->init_done);
1468netdev_err:
1469 mutex_unlock(&bnx2fc_dev_lock);
1470 rtnl_unlock();
1471 return rc;
1472}
1473
1474static void bnx2fc_destroy_work(struct work_struct *work)
1475{
1476 struct fcoe_port *port;
1477 struct fc_lport *lport;
1478
1479 port = container_of(work, struct fcoe_port, destroy_work);
1480 lport = port->lport;
1481
1482 BNX2FC_HBA_DBG(lport, "Entered bnx2fc_destroy_work\n");
1483
1484 bnx2fc_port_shutdown(lport);
1485 rtnl_lock();
1486 mutex_lock(&bnx2fc_dev_lock);
1487 bnx2fc_if_destroy(lport);
1488 mutex_unlock(&bnx2fc_dev_lock);
1489 rtnl_unlock();
1490}
1491
1492static void bnx2fc_unbind_adapter_devices(struct bnx2fc_hba *hba)
1493{
1494 bnx2fc_free_fw_resc(hba);
1495 bnx2fc_free_task_ctx(hba);
1496}
1497
1498/**
1499 * bnx2fc_bind_adapter_devices - binds bnx2fc adapter with the associated
1500 * pci structure
1501 *
1502 * @hba: Adapter instance
1503 */
1504static int bnx2fc_bind_adapter_devices(struct bnx2fc_hba *hba)
1505{
1506 if (bnx2fc_setup_task_ctx(hba))
1507 goto mem_err;
1508
1509 if (bnx2fc_setup_fw_resc(hba))
1510 goto mem_err;
1511
1512 return 0;
1513mem_err:
1514 bnx2fc_unbind_adapter_devices(hba);
1515 return -ENOMEM;
1516}
1517
1518static int bnx2fc_bind_pcidev(struct bnx2fc_hba *hba)
1519{
1520 struct cnic_dev *cnic;
1521
1522 if (!hba->cnic) {
1523 printk(KERN_ERR PFX "cnic is NULL\n");
1524 return -ENODEV;
1525 }
1526 cnic = hba->cnic;
1527 hba->pcidev = cnic->pcidev;
1528 if (hba->pcidev)
1529 pci_dev_get(hba->pcidev);
1530
1531 return 0;
1532}
1533
1534static void bnx2fc_unbind_pcidev(struct bnx2fc_hba *hba)
1535{
1536 if (hba->pcidev)
1537 pci_dev_put(hba->pcidev);
1538 hba->pcidev = NULL;
1539}
1540
1541
1542
1543/**
1544 * bnx2fc_ulp_start - cnic callback to initialize & start adapter instance
1545 *
1546 * @handle: transport handle pointing to adapter struture
1547 *
1548 * This function maps adapter structure to pcidev structure and initiates
1549 * firmware handshake to enable/initialize on-chip FCoE components.
1550 * This bnx2fc - cnic interface api callback is used after following
1551 * conditions are met -
1552 * a) underlying network interface is up (marked by event NETDEV_UP
1553 * from netdev
1554 * b) bnx2fc adatper structure is registered.
1555 */
1556static void bnx2fc_ulp_start(void *handle)
1557{
1558 struct bnx2fc_hba *hba = handle;
1559 struct fc_lport *lport = hba->ctlr.lp;
1560
1561 BNX2FC_MISC_DBG("Entered %s\n", __func__);
1562 mutex_lock(&bnx2fc_dev_lock);
1563
1564 if (test_bit(BNX2FC_FW_INIT_DONE, &hba->init_done))
1565 goto start_disc;
1566
1567 if (test_bit(BNX2FC_CREATE_DONE, &hba->init_done))
1568 bnx2fc_fw_init(hba);
1569
1570start_disc:
1571 mutex_unlock(&bnx2fc_dev_lock);
1572
1573 BNX2FC_MISC_DBG("bnx2fc started.\n");
1574
1575 /* Kick off Fabric discovery*/
1576 if (test_bit(BNX2FC_CREATE_DONE, &hba->init_done)) {
1577 printk(KERN_ERR PFX "ulp_init: start discovery\n");
1578 lport->tt.frame_send = bnx2fc_xmit;
1579 bnx2fc_start_disc(hba);
1580 }
1581}
1582
1583static void bnx2fc_port_shutdown(struct fc_lport *lport)
1584{
1585 BNX2FC_MISC_DBG("Entered %s\n", __func__);
1586 fc_fabric_logoff(lport);
1587 fc_lport_destroy(lport);
1588}
1589
1590static void bnx2fc_stop(struct bnx2fc_hba *hba)
1591{
1592 struct fc_lport *lport;
1593 struct fc_lport *vport;
1594
1595 BNX2FC_MISC_DBG("ENTERED %s - init_done = %ld\n", __func__,
1596 hba->init_done);
1597 if (test_bit(BNX2FC_FW_INIT_DONE, &hba->init_done) &&
1598 test_bit(BNX2FC_CREATE_DONE, &hba->init_done)) {
1599 lport = hba->ctlr.lp;
1600 bnx2fc_port_shutdown(lport);
1601 BNX2FC_HBA_DBG(lport, "bnx2fc_stop: waiting for %d "
1602 "offloaded sessions\n",
1603 hba->num_ofld_sess);
1604 wait_event_interruptible(hba->shutdown_wait,
1605 (hba->num_ofld_sess == 0));
1606 mutex_lock(&lport->lp_mutex);
1607 list_for_each_entry(vport, &lport->vports, list)
1608 fc_host_port_type(vport->host) = FC_PORTTYPE_UNKNOWN;
1609 mutex_unlock(&lport->lp_mutex);
1610 fc_host_port_type(lport->host) = FC_PORTTYPE_UNKNOWN;
1611 fcoe_ctlr_link_down(&hba->ctlr);
1612 fcoe_clean_pending_queue(lport);
1613
1614 mutex_lock(&hba->hba_mutex);
1615 clear_bit(ADAPTER_STATE_UP, &hba->adapter_state);
1616 clear_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state);
1617
1618 clear_bit(ADAPTER_STATE_READY, &hba->adapter_state);
1619 mutex_unlock(&hba->hba_mutex);
1620 }
1621}
1622
1623static int bnx2fc_fw_init(struct bnx2fc_hba *hba)
1624{
1625#define BNX2FC_INIT_POLL_TIME (1000 / HZ)
1626 int rc = -1;
1627 int i = HZ;
1628
1629 rc = bnx2fc_bind_adapter_devices(hba);
1630 if (rc) {
1631 printk(KERN_ALERT PFX
1632 "bnx2fc_bind_adapter_devices failed - rc = %d\n", rc);
1633 goto err_out;
1634 }
1635
1636 rc = bnx2fc_send_fw_fcoe_init_msg(hba);
1637 if (rc) {
1638 printk(KERN_ALERT PFX
1639 "bnx2fc_send_fw_fcoe_init_msg failed - rc = %d\n", rc);
1640 goto err_unbind;
1641 }
1642
1643 /*
1644 * Wait until the adapter init message is complete, and adapter
1645 * state is UP.
1646 */
1647 while (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state) && i--)
1648 msleep(BNX2FC_INIT_POLL_TIME);
1649
1650 if (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state)) {
1651 printk(KERN_ERR PFX "bnx2fc_start: %s failed to initialize. "
1652 "Ignoring...\n",
1653 hba->cnic->netdev->name);
1654 rc = -1;
1655 goto err_unbind;
1656 }
1657
1658
1659 /* Mark HBA to indicate that the FW INIT is done */
1660 set_bit(BNX2FC_FW_INIT_DONE, &hba->init_done);
1661 return 0;
1662
1663err_unbind:
1664 bnx2fc_unbind_adapter_devices(hba);
1665err_out:
1666 return rc;
1667}
1668
1669static void bnx2fc_fw_destroy(struct bnx2fc_hba *hba)
1670{
1671 if (test_and_clear_bit(BNX2FC_FW_INIT_DONE, &hba->init_done)) {
1672 if (bnx2fc_send_fw_fcoe_destroy_msg(hba) == 0) {
1673 init_timer(&hba->destroy_timer);
1674 hba->destroy_timer.expires = BNX2FC_FW_TIMEOUT +
1675 jiffies;
1676 hba->destroy_timer.function = bnx2fc_destroy_timer;
1677 hba->destroy_timer.data = (unsigned long)hba;
1678 add_timer(&hba->destroy_timer);
1679 wait_event_interruptible(hba->destroy_wait,
1680 (hba->flags &
1681 BNX2FC_FLAG_DESTROY_CMPL));
1682 /* This should never happen */
1683 if (signal_pending(current))
1684 flush_signals(current);
1685
1686 del_timer_sync(&hba->destroy_timer);
1687 }
1688 bnx2fc_unbind_adapter_devices(hba);
1689 }
1690}
1691
1692/**
1693 * bnx2fc_ulp_stop - cnic callback to shutdown adapter instance
1694 *
1695 * @handle: transport handle pointing to adapter structure
1696 *
1697 * Driver checks if adapter is already in shutdown mode, if not start
1698 * the shutdown process.
1699 */
1700static void bnx2fc_ulp_stop(void *handle)
1701{
1702 struct bnx2fc_hba *hba = (struct bnx2fc_hba *)handle;
1703
1704 printk(KERN_ERR "ULP_STOP\n");
1705
1706 mutex_lock(&bnx2fc_dev_lock);
1707 bnx2fc_stop(hba);
1708 bnx2fc_fw_destroy(hba);
1709 mutex_unlock(&bnx2fc_dev_lock);
1710}
1711
1712static void bnx2fc_start_disc(struct bnx2fc_hba *hba)
1713{
1714 struct fc_lport *lport;
1715 int wait_cnt = 0;
1716
1717 BNX2FC_MISC_DBG("Entered %s\n", __func__);
1718 /* Kick off FIP/FLOGI */
1719 if (!test_bit(BNX2FC_FW_INIT_DONE, &hba->init_done)) {
1720 printk(KERN_ERR PFX "Init not done yet\n");
1721 return;
1722 }
1723
1724 lport = hba->ctlr.lp;
1725 BNX2FC_HBA_DBG(lport, "calling fc_fabric_login\n");
1726
1727 if (!bnx2fc_link_ok(lport)) {
1728 BNX2FC_HBA_DBG(lport, "ctlr_link_up\n");
1729 fcoe_ctlr_link_up(&hba->ctlr);
1730 fc_host_port_type(lport->host) = FC_PORTTYPE_NPORT;
1731 set_bit(ADAPTER_STATE_READY, &hba->adapter_state);
1732 }
1733
1734 /* wait for the FCF to be selected before issuing FLOGI */
1735 while (!hba->ctlr.sel_fcf) {
1736 msleep(250);
1737 /* give up after 3 secs */
1738 if (++wait_cnt > 12)
1739 break;
1740 }
1741 fc_lport_init(lport);
1742 fc_fabric_login(lport);
1743}
1744
1745
1746/**
1747 * bnx2fc_ulp_init - Initialize an adapter instance
1748 *
1749 * @dev : cnic device handle
1750 * Called from cnic_register_driver() context to initialize all
1751 * enumerated cnic devices. This routine allocates adapter structure
1752 * and other device specific resources.
1753 */
1754static void bnx2fc_ulp_init(struct cnic_dev *dev)
1755{
1756 struct bnx2fc_hba *hba;
1757 int rc = 0;
1758
1759 BNX2FC_MISC_DBG("Entered %s\n", __func__);
1760 /* bnx2fc works only when bnx2x is loaded */
1761 if (!test_bit(CNIC_F_BNX2X_CLASS, &dev->flags)) {
1762 printk(KERN_ERR PFX "bnx2fc FCoE not supported on %s,"
1763 " flags: %lx\n",
1764 dev->netdev->name, dev->flags);
1765 return;
1766 }
1767
1768 /* Configure FCoE interface */
1769 hba = bnx2fc_interface_create(dev);
1770 if (!hba) {
1771 printk(KERN_ERR PFX "hba initialization failed\n");
1772 return;
1773 }
1774
1775 /* Add HBA to the adapter list */
1776 mutex_lock(&bnx2fc_dev_lock);
1777 list_add_tail(&hba->link, &adapter_list);
1778 adapter_count++;
1779 mutex_unlock(&bnx2fc_dev_lock);
1780
1781 clear_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic);
1782 rc = dev->register_device(dev, CNIC_ULP_FCOE,
1783 (void *) hba);
1784 if (rc)
b2a554ff 1785 printk(KERN_ERR PFX "register_device failed, rc = %d\n", rc);
853e2bd2
BG		 1786 else
1787 set_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic);
1788}
1789
1790
1791static int bnx2fc_disable(struct net_device *netdev)
1792{
1793 struct bnx2fc_hba *hba;
1794 struct net_device *phys_dev;
1795 struct ethtool_drvinfo drvinfo;
1796 int rc = 0;
1797
6702ca1d 1798 rtnl_lock();
853e2bd2
BG		 1799
1800 mutex_lock(&bnx2fc_dev_lock);
1801
853e2bd2
BG		 1802 /* obtain physical netdev */
1803 if (netdev->priv_flags & IFF_802_1Q_VLAN)
1804 phys_dev = vlan_dev_real_dev(netdev);
1805 else {
1806 printk(KERN_ERR PFX "Not a vlan device\n");
1807 rc = -ENODEV;
1808 goto nodev;
1809 }
1810
1811 /* verify if the physical device is a netxtreme2 device */
1812 if (phys_dev->ethtool_ops && phys_dev->ethtool_ops->get_drvinfo) {
1813 memset(&drvinfo, 0, sizeof(drvinfo));
1814 phys_dev->ethtool_ops->get_drvinfo(phys_dev, &drvinfo);
1815 if (strcmp(drvinfo.driver, "bnx2x")) {
1816 printk(KERN_ERR PFX "Not a netxtreme2 device\n");
1817 rc = -ENODEV;
1818 goto nodev;
1819 }
1820 } else {
1821 printk(KERN_ERR PFX "unable to obtain drv_info\n");
1822 rc = -ENODEV;
1823 goto nodev;
1824 }
1825
1826 printk(KERN_ERR PFX "phys_dev is netxtreme2 device\n");
1827
1828 /* obtain hba and initialize rest of the structure */
1829 hba = bnx2fc_hba_lookup(phys_dev);
1830 if (!hba || !hba->ctlr.lp) {
1831 rc = -ENODEV;
1832 printk(KERN_ERR PFX "bnx2fc_disable: hba or lport not found\n");
1833 } else {
1834 fcoe_ctlr_link_down(&hba->ctlr);
1835 fcoe_clean_pending_queue(hba->ctlr.lp);
1836 }
1837
1838nodev:
1839 mutex_unlock(&bnx2fc_dev_lock);
1840 rtnl_unlock();
1841 return rc;
1842}
1843
1844
1845static int bnx2fc_enable(struct net_device *netdev)
1846{
1847 struct bnx2fc_hba *hba;
1848 struct net_device *phys_dev;
1849 struct ethtool_drvinfo drvinfo;
1850 int rc = 0;
1851
6702ca1d 1852 rtnl_lock();
853e2bd2
BG		 1853
1854 BNX2FC_MISC_DBG("Entered %s\n", __func__);
1855 mutex_lock(&bnx2fc_dev_lock);
1856
853e2bd2
BG		 1857 /* obtain physical netdev */
1858 if (netdev->priv_flags & IFF_802_1Q_VLAN)
1859 phys_dev = vlan_dev_real_dev(netdev);
1860 else {
1861 printk(KERN_ERR PFX "Not a vlan device\n");
1862 rc = -ENODEV;
1863 goto nodev;
1864 }
1865 /* verify if the physical device is a netxtreme2 device */
1866 if (phys_dev->ethtool_ops && phys_dev->ethtool_ops->get_drvinfo) {
1867 memset(&drvinfo, 0, sizeof(drvinfo));
1868 phys_dev->ethtool_ops->get_drvinfo(phys_dev, &drvinfo);
1869 if (strcmp(drvinfo.driver, "bnx2x")) {
1870 printk(KERN_ERR PFX "Not a netxtreme2 device\n");
1871 rc = -ENODEV;
1872 goto nodev;
1873 }
1874 } else {
1875 printk(KERN_ERR PFX "unable to obtain drv_info\n");
1876 rc = -ENODEV;
1877 goto nodev;
1878 }
1879
1880 /* obtain hba and initialize rest of the structure */
1881 hba = bnx2fc_hba_lookup(phys_dev);
1882 if (!hba || !hba->ctlr.lp) {
1883 rc = -ENODEV;
1884 printk(KERN_ERR PFX "bnx2fc_enable: hba or lport not found\n");
1885 } else if (!bnx2fc_link_ok(hba->ctlr.lp))
1886 fcoe_ctlr_link_up(&hba->ctlr);
1887
1888nodev:
1889 mutex_unlock(&bnx2fc_dev_lock);
1890 rtnl_unlock();
1891 return rc;
1892}
1893
1894/**
1895 * bnx2fc_create - Create bnx2fc FCoE interface
1896 *
1897 * @buffer: The name of Ethernet interface to create on
1898 * @kp: The associated kernel param
1899 *
1900 * Called from sysfs.
1901 *
1902 * Returns: 0 for success
1903 */
1904static int bnx2fc_create(struct net_device *netdev, enum fip_state fip_mode)
1905{
1906 struct bnx2fc_hba *hba;
1907 struct net_device *phys_dev;
1908 struct fc_lport *lport;
1909 struct ethtool_drvinfo drvinfo;
1910 int rc = 0;
1911 int vlan_id;
1912
1913 BNX2FC_MISC_DBG("Entered bnx2fc_create\n");
1914 if (fip_mode != FIP_MODE_FABRIC) {
1915 printk(KERN_ERR "fip mode not FABRIC\n");
1916 return -EIO;
1917 }
1918
6702ca1d
NS		 1919 rtnl_lock();
1920
853e2bd2
BG		 1921 mutex_lock(&bnx2fc_dev_lock);
1922
853e2bd2
BG		 1923 if (!try_module_get(THIS_MODULE)) {
1924 rc = -EINVAL;
1925 goto mod_err;
1926 }
1927
1928 /* obtain physical netdev */
1929 if (netdev->priv_flags & IFF_802_1Q_VLAN) {
1930 phys_dev = vlan_dev_real_dev(netdev);
1931 vlan_id = vlan_dev_vlan_id(netdev);
1932 } else {
1933 printk(KERN_ERR PFX "Not a vlan device\n");
1934 rc = -EINVAL;
1935 goto netdev_err;
1936 }
1937 /* verify if the physical device is a netxtreme2 device */
1938 if (phys_dev->ethtool_ops && phys_dev->ethtool_ops->get_drvinfo) {
1939 memset(&drvinfo, 0, sizeof(drvinfo));
1940 phys_dev->ethtool_ops->get_drvinfo(phys_dev, &drvinfo);
1941 if (strcmp(drvinfo.driver, "bnx2x")) {
1942 printk(KERN_ERR PFX "Not a netxtreme2 device\n");
1943 rc = -EINVAL;
1944 goto netdev_err;
1945 }
1946 } else {
1947 printk(KERN_ERR PFX "unable to obtain drv_info\n");
1948 rc = -EINVAL;
1949 goto netdev_err;
1950 }
1951
1952 /* obtain hba and initialize rest of the structure */
1953 hba = bnx2fc_hba_lookup(phys_dev);
1954 if (!hba) {
1955 rc = -ENODEV;
1956 printk(KERN_ERR PFX "bnx2fc_create: hba not found\n");
1957 goto netdev_err;
1958 }
1959
1960 if (!test_bit(BNX2FC_FW_INIT_DONE, &hba->init_done)) {
1961 rc = bnx2fc_fw_init(hba);
1962 if (rc)
1963 goto netdev_err;
1964 }
1965
1966 if (test_bit(BNX2FC_CREATE_DONE, &hba->init_done)) {
1967 rc = -EEXIST;
1968 goto netdev_err;
1969 }
1970
1971 /* update netdev with vlan netdev */
1972 hba->netdev = netdev;
1973 hba->vlan_id = vlan_id;
1974 hba->vlan_enabled = 1;
1975
1976 rc = bnx2fc_interface_setup(hba, fip_mode);
1977 if (rc) {
1978 printk(KERN_ERR PFX "bnx2fc_interface_setup failed\n");
1979 goto ifput_err;
1980 }
1981
1982 hba->timer_work_queue =
1983 create_singlethread_workqueue("bnx2fc_timer_wq");
1984 if (!hba->timer_work_queue) {
1985 printk(KERN_ERR PFX "ulp_init could not create timer_wq\n");
1986 rc = -EINVAL;
1987 goto ifput_err;
1988 }
1989
1990 lport = bnx2fc_if_create(hba, &hba->pcidev->dev, 0);
1991 if (!lport) {
1992 printk(KERN_ERR PFX "Failed to create interface (%s)\n",
1993 netdev->name);
1994 bnx2fc_netdev_cleanup(hba);
1995 rc = -EINVAL;
1996 goto if_create_err;
1997 }
1998
1999 lport->boot_time = jiffies;
2000
2001 /* Make this master N_port */
2002 hba->ctlr.lp = lport;
2003
2004 set_bit(BNX2FC_CREATE_DONE, &hba->init_done);
2005 printk(KERN_ERR PFX "create: START DISC\n");
2006 bnx2fc_start_disc(hba);
2007 /*
2008 * Release from kref_init in bnx2fc_interface_setup, on success
2009 * lport should be holding a reference taken in bnx2fc_if_create
2010 */
2011 bnx2fc_interface_put(hba);
2012 /* put netdev that was held while calling dev_get_by_name */
2013 mutex_unlock(&bnx2fc_dev_lock);
2014 rtnl_unlock();
2015 return 0;
2016
2017if_create_err:
2018 destroy_workqueue(hba->timer_work_queue);
2019ifput_err:
2020 bnx2fc_interface_put(hba);
2021netdev_err:
2022 module_put(THIS_MODULE);
2023mod_err:
2024 mutex_unlock(&bnx2fc_dev_lock);
2025 rtnl_unlock();
2026 return rc;
2027}
2028
2029/**
2030 * bnx2fc_find_hba_for_cnic - maps cnic instance to bnx2fc adapter instance
2031 *
2032 * @cnic: Pointer to cnic device instance
2033 *
2034 **/
2035static struct bnx2fc_hba *bnx2fc_find_hba_for_cnic(struct cnic_dev *cnic)
2036{
2037 struct list_head *list;
2038 struct list_head *temp;
2039 struct bnx2fc_hba *hba;
2040
2041 /* Called with bnx2fc_dev_lock held */
2042 list_for_each_safe(list, temp, &adapter_list) {
2043 hba = (struct bnx2fc_hba *)list;
2044 if (hba->cnic == cnic)
2045 return hba;
2046 }
2047 return NULL;
2048}
2049
2050static struct bnx2fc_hba *bnx2fc_hba_lookup(struct net_device *phys_dev)
2051{
2052 struct list_head *list;
2053 struct list_head *temp;
2054 struct bnx2fc_hba *hba;
2055
2056 /* Called with bnx2fc_dev_lock held */
2057 list_for_each_safe(list, temp, &adapter_list) {
2058 hba = (struct bnx2fc_hba *)list;
2059 if (hba->phys_dev == phys_dev)
2060 return hba;
2061 }
2062 printk(KERN_ERR PFX "hba_lookup: hba NULL\n");
2063 return NULL;
2064}
2065
2066/**
2067 * bnx2fc_ulp_exit - shuts down adapter instance and frees all resources
2068 *
2069 * @dev cnic device handle
2070 */
2071static void bnx2fc_ulp_exit(struct cnic_dev *dev)
2072{
2073 struct bnx2fc_hba *hba;
2074
2075 BNX2FC_MISC_DBG("Entered bnx2fc_ulp_exit\n");
2076
2077 if (!test_bit(CNIC_F_BNX2X_CLASS, &dev->flags)) {
2078 printk(KERN_ERR PFX "bnx2fc port check: %s, flags: %lx\n",
2079 dev->netdev->name, dev->flags);
2080 return;
2081 }
2082
2083 mutex_lock(&bnx2fc_dev_lock);
2084 hba = bnx2fc_find_hba_for_cnic(dev);
2085 if (!hba) {
2086 printk(KERN_ERR PFX "bnx2fc_ulp_exit: hba not found, dev 0%p\n",
2087 dev);
2088 mutex_unlock(&bnx2fc_dev_lock);
2089 return;
2090 }
2091
2092 list_del_init(&hba->link);
2093 adapter_count--;
2094
2095 if (test_bit(BNX2FC_CREATE_DONE, &hba->init_done)) {
2096 /* destroy not called yet, move to quiesced list */
2097 bnx2fc_netdev_cleanup(hba);
2098 bnx2fc_if_destroy(hba->ctlr.lp);
2099 }
2100 mutex_unlock(&bnx2fc_dev_lock);
2101
2102 bnx2fc_ulp_stop(hba);
2103 /* unregister cnic device */
2104 if (test_and_clear_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic))
2105 hba->cnic->unregister_device(hba->cnic, CNIC_ULP_FCOE);
2106 bnx2fc_interface_destroy(hba);
2107}
2108
2109/**
2110 * bnx2fc_fcoe_reset - Resets the fcoe
2111 *
2112 * @shost: shost the reset is from
2113 *
2114 * Returns: always 0
2115 */
2116static int bnx2fc_fcoe_reset(struct Scsi_Host *shost)
2117{
2118 struct fc_lport *lport = shost_priv(shost);
2119 fc_lport_reset(lport);
2120 return 0;
2121}
2122
2123
2124static bool bnx2fc_match(struct net_device *netdev)
2125{
2126 mutex_lock(&bnx2fc_dev_lock);
2127 if (netdev->priv_flags & IFF_802_1Q_VLAN) {
2128 struct net_device *phys_dev = vlan_dev_real_dev(netdev);
2129
2130 if (bnx2fc_hba_lookup(phys_dev)) {
2131 mutex_unlock(&bnx2fc_dev_lock);
2132 return true;
2133 }
2134 }
2135 mutex_unlock(&bnx2fc_dev_lock);
2136 return false;
2137}
2138
2139
2140static struct fcoe_transport bnx2fc_transport = {
2141 .name = {"bnx2fc"},
2142 .attached = false,
2143 .list = LIST_HEAD_INIT(bnx2fc_transport.list),
2144 .match = bnx2fc_match,
2145 .create = bnx2fc_create,
2146 .destroy = bnx2fc_destroy,
2147 .enable = bnx2fc_enable,
2148 .disable = bnx2fc_disable,
2149};
2150
2151/**
2152 * bnx2fc_percpu_thread_create - Create a receive thread for an
2153 * online CPU
2154 *
2155 * @cpu: cpu index for the online cpu
2156 */
2157static void bnx2fc_percpu_thread_create(unsigned int cpu)
2158{
2159 struct bnx2fc_percpu_s *p;
2160 struct task_struct *thread;
2161
2162 p = &per_cpu(bnx2fc_percpu, cpu);
2163
2164 thread = kthread_create(bnx2fc_percpu_io_thread,
2165 (void *)p,
2166 "bnx2fc_thread/%d", cpu);
2167 /* bind thread to the cpu */
2168 if (likely(!IS_ERR(p->iothread))) {
2169 kthread_bind(thread, cpu);
2170 p->iothread = thread;
2171 wake_up_process(thread);
2172 }
2173}
2174
2175static void bnx2fc_percpu_thread_destroy(unsigned int cpu)
2176{
2177 struct bnx2fc_percpu_s *p;
2178 struct task_struct *thread;
2179 struct bnx2fc_work *work, *tmp;
2180 LIST_HEAD(work_list);
2181
2182 BNX2FC_MISC_DBG("destroying io thread for CPU %d\n", cpu);
2183
2184 /* Prevent any new work from being queued for this CPU */
2185 p = &per_cpu(bnx2fc_percpu, cpu);
2186 spin_lock_bh(&p->fp_work_lock);
2187 thread = p->iothread;
2188 p->iothread = NULL;
2189
2190
2191 /* Free all work in the list */
2192 list_for_each_entry_safe(work, tmp, &work_list, list) {
2193 list_del_init(&work->list);
2194 bnx2fc_process_cq_compl(work->tgt, work->wqe);
2195 kfree(work);
2196 }
2197
2198 spin_unlock_bh(&p->fp_work_lock);
2199
2200 if (thread)
2201 kthread_stop(thread);
2202}
2203
2204/**
2205 * bnx2fc_cpu_callback - Handler for CPU hotplug events
2206 *
2207 * @nfb: The callback data block
2208 * @action: The event triggering the callback
2209 * @hcpu: The index of the CPU that the event is for
2210 *
2211 * This creates or destroys per-CPU data for fcoe
2212 *
2213 * Returns NOTIFY_OK always.
2214 */
2215static int bnx2fc_cpu_callback(struct notifier_block *nfb,
2216 unsigned long action, void *hcpu)
2217{
2218 unsigned cpu = (unsigned long)hcpu;
2219
2220 switch (action) {
2221 case CPU_ONLINE:
2222 case CPU_ONLINE_FROZEN:
2223 printk(PFX "CPU %x online: Create Rx thread\n", cpu);
2224 bnx2fc_percpu_thread_create(cpu);
2225 break;
2226 case CPU_DEAD:
2227 case CPU_DEAD_FROZEN:
2228 printk(PFX "CPU %x offline: Remove Rx thread\n", cpu);
2229 bnx2fc_percpu_thread_destroy(cpu);
2230 break;
2231 default:
2232 break;
2233 }
2234 return NOTIFY_OK;
2235}
2236
2237/**
2238 * bnx2fc_mod_init - module init entry point
2239 *
2240 * Initialize driver wide global data structures, and register
2241 * with cnic module
2242 **/
2243static int __init bnx2fc_mod_init(void)
2244{
2245 struct fcoe_percpu_s *bg;
2246 struct task_struct *l2_thread;
2247 int rc = 0;
2248 unsigned int cpu = 0;
2249 struct bnx2fc_percpu_s *p;
2250
2251 printk(KERN_INFO PFX "%s", version);
2252
2253 /* register as a fcoe transport */
2254 rc = fcoe_transport_attach(&bnx2fc_transport);
2255 if (rc) {
2256 printk(KERN_ERR "failed to register an fcoe transport, check "
2257 "if libfcoe is loaded\n");
2258 goto out;
2259 }
2260
2261 INIT_LIST_HEAD(&adapter_list);
2262 mutex_init(&bnx2fc_dev_lock);
2263 adapter_count = 0;
2264
2265 /* Attach FC transport template */
2266 rc = bnx2fc_attach_transport();
2267 if (rc)
2268 goto detach_ft;
2269
2270 bnx2fc_wq = alloc_workqueue("bnx2fc", 0, 0);
2271 if (!bnx2fc_wq) {
2272 rc = -ENOMEM;
2273 goto release_bt;
2274 }
2275
2276 bg = &bnx2fc_global;
2277 skb_queue_head_init(&bg->fcoe_rx_list);
2278 l2_thread = kthread_create(bnx2fc_l2_rcv_thread,
2279 (void *)bg,
2280 "bnx2fc_l2_thread");
2281 if (IS_ERR(l2_thread)) {
2282 rc = PTR_ERR(l2_thread);
2283 goto free_wq;
2284 }
2285 wake_up_process(l2_thread);
2286 spin_lock_bh(&bg->fcoe_rx_list.lock);
2287 bg->thread = l2_thread;
2288 spin_unlock_bh(&bg->fcoe_rx_list.lock);
2289
2290 for_each_possible_cpu(cpu) {
2291 p = &per_cpu(bnx2fc_percpu, cpu);
2292 INIT_LIST_HEAD(&p->work_list);
2293 spin_lock_init(&p->fp_work_lock);
2294 }
2295
2296 for_each_online_cpu(cpu) {
2297 bnx2fc_percpu_thread_create(cpu);
2298 }
2299
2300 /* Initialize per CPU interrupt thread */
2301 register_hotcpu_notifier(&bnx2fc_cpu_notifier);
2302
2303 cnic_register_driver(CNIC_ULP_FCOE, &bnx2fc_cnic_cb);
2304
2305 return 0;
2306
2307free_wq:
2308 destroy_workqueue(bnx2fc_wq);
2309release_bt:
2310 bnx2fc_release_transport();
2311detach_ft:
2312 fcoe_transport_detach(&bnx2fc_transport);
2313out:
2314 return rc;
2315}
2316
2317static void __exit bnx2fc_mod_exit(void)
2318{
2319 LIST_HEAD(to_be_deleted);
2320 struct bnx2fc_hba *hba, *next;
2321 struct fcoe_percpu_s *bg;
2322 struct task_struct *l2_thread;
2323 struct sk_buff *skb;
2324 unsigned int cpu = 0;
2325
2326 /*
2327 * NOTE: Since cnic calls register_driver routine rtnl_lock,
2328 * it will have higher precedence than bnx2fc_dev_lock.
2329 * unregister_device() cannot be called with bnx2fc_dev_lock
2330 * held.
2331 */
2332 mutex_lock(&bnx2fc_dev_lock);
2333 list_splice(&adapter_list, &to_be_deleted);
2334 INIT_LIST_HEAD(&adapter_list);
2335 adapter_count = 0;
2336 mutex_unlock(&bnx2fc_dev_lock);
2337
2338 /* Unregister with cnic */
2339 list_for_each_entry_safe(hba, next, &to_be_deleted, link) {
2340 list_del_init(&hba->link);
2341 printk(KERN_ERR PFX "MOD_EXIT:destroy hba = 0x%p, kref = %d\n",
2342 hba, atomic_read(&hba->kref.refcount));
2343 bnx2fc_ulp_stop(hba);
2344 /* unregister cnic device */
2345 if (test_and_clear_bit(BNX2FC_CNIC_REGISTERED,
2346 &hba->reg_with_cnic))
2347 hba->cnic->unregister_device(hba->cnic, CNIC_ULP_FCOE);
2348 bnx2fc_interface_destroy(hba);
2349 }
2350 cnic_unregister_driver(CNIC_ULP_FCOE);
2351
2352 /* Destroy global thread */
2353 bg = &bnx2fc_global;
2354 spin_lock_bh(&bg->fcoe_rx_list.lock);
2355 l2_thread = bg->thread;
2356 bg->thread = NULL;
2357 while ((skb = __skb_dequeue(&bg->fcoe_rx_list)) != NULL)
2358 kfree_skb(skb);
2359
2360 spin_unlock_bh(&bg->fcoe_rx_list.lock);
2361
2362 if (l2_thread)
2363 kthread_stop(l2_thread);
2364
2365 unregister_hotcpu_notifier(&bnx2fc_cpu_notifier);
2366
2367 /* Destroy per cpu threads */
2368 for_each_online_cpu(cpu) {
2369 bnx2fc_percpu_thread_destroy(cpu);
2370 }
2371
2372 destroy_workqueue(bnx2fc_wq);
2373 /*
2374 * detach from scsi transport
2375 * must happen after all destroys are done
2376 */
2377 bnx2fc_release_transport();
2378
2379 /* detach from fcoe transport */
2380 fcoe_transport_detach(&bnx2fc_transport);
2381}
2382
2383module_init(bnx2fc_mod_init);
2384module_exit(bnx2fc_mod_exit);
2385
2386static struct fc_function_template bnx2fc_transport_function = {
2387 .show_host_node_name = 1,
2388 .show_host_port_name = 1,
2389 .show_host_supported_classes = 1,
2390 .show_host_supported_fc4s = 1,
2391 .show_host_active_fc4s = 1,
2392 .show_host_maxframe_size = 1,
2393
2394 .show_host_port_id = 1,
2395 .show_host_supported_speeds = 1,
2396 .get_host_speed = fc_get_host_speed,
2397 .show_host_speed = 1,
2398 .show_host_port_type = 1,
2399 .get_host_port_state = fc_get_host_port_state,
2400 .show_host_port_state = 1,
2401 .show_host_symbolic_name = 1,
2402
2403 .dd_fcrport_size = (sizeof(struct fc_rport_libfc_priv) +
2404 sizeof(struct bnx2fc_rport)),
2405 .show_rport_maxframe_size = 1,
2406 .show_rport_supported_classes = 1,
2407
2408 .show_host_fabric_name = 1,
2409 .show_starget_node_name = 1,
2410 .show_starget_port_name = 1,
2411 .show_starget_port_id = 1,
2412 .set_rport_dev_loss_tmo = fc_set_rport_loss_tmo,
2413 .show_rport_dev_loss_tmo = 1,
2414 .get_fc_host_stats = bnx2fc_get_host_stats,
2415
2416 .issue_fc_host_lip = bnx2fc_fcoe_reset,
2417
2418 .terminate_rport_io = fc_rport_terminate_io,
2419
2420 .vport_create = bnx2fc_vport_create,
2421 .vport_delete = bnx2fc_vport_destroy,
2422 .vport_disable = bnx2fc_vport_disable,
2423};
2424
2425static struct fc_function_template bnx2fc_vport_xport_function = {
2426 .show_host_node_name = 1,
2427 .show_host_port_name = 1,
2428 .show_host_supported_classes = 1,
2429 .show_host_supported_fc4s = 1,
2430 .show_host_active_fc4s = 1,
2431 .show_host_maxframe_size = 1,
2432
2433 .show_host_port_id = 1,
2434 .show_host_supported_speeds = 1,
2435 .get_host_speed = fc_get_host_speed,
2436 .show_host_speed = 1,
2437 .show_host_port_type = 1,
2438 .get_host_port_state = fc_get_host_port_state,
2439 .show_host_port_state = 1,
2440 .show_host_symbolic_name = 1,
2441
2442 .dd_fcrport_size = (sizeof(struct fc_rport_libfc_priv) +
2443 sizeof(struct bnx2fc_rport)),
2444 .show_rport_maxframe_size = 1,
2445 .show_rport_supported_classes = 1,
2446
2447 .show_host_fabric_name = 1,
2448 .show_starget_node_name = 1,
2449 .show_starget_port_name = 1,
2450 .show_starget_port_id = 1,
2451 .set_rport_dev_loss_tmo = fc_set_rport_loss_tmo,
2452 .show_rport_dev_loss_tmo = 1,
2453 .get_fc_host_stats = fc_get_host_stats,
2454 .issue_fc_host_lip = bnx2fc_fcoe_reset,
2455 .terminate_rport_io = fc_rport_terminate_io,
2456};
2457
2458/**
2459 * scsi_host_template structure used while registering with SCSI-ml
2460 */
2461static struct scsi_host_template bnx2fc_shost_template = {
2462 .module = THIS_MODULE,
2463 .name = "Broadcom Offload FCoE Initiator",
2464 .queuecommand = bnx2fc_queuecommand,
2465 .eh_abort_handler = bnx2fc_eh_abort, /* abts */
2466 .eh_device_reset_handler = bnx2fc_eh_device_reset, /* lun reset */
2467 .eh_target_reset_handler = bnx2fc_eh_target_reset, /* tgt reset */
2468 .eh_host_reset_handler = fc_eh_host_reset,
2469 .slave_alloc = fc_slave_alloc,
2470 .change_queue_depth = fc_change_queue_depth,
2471 .change_queue_type = fc_change_queue_type,
2472 .this_id = -1,
2473 .cmd_per_lun = 3,
0ea5c275 2474 .can_queue = BNX2FC_CAN_QUEUE,
853e2bd2
BG		 2475 .use_clustering = ENABLE_CLUSTERING,
2476 .sg_tablesize = BNX2FC_MAX_BDS_PER_CMD,
2477 .max_sectors = 512,
2478};
2479
2480static struct libfc_function_template bnx2fc_libfc_fcn_templ = {
2481 .frame_send = bnx2fc_xmit,
2482 .elsct_send = bnx2fc_elsct_send,
2483 .fcp_abort_io = bnx2fc_abort_io,
2484 .fcp_cleanup = bnx2fc_cleanup,
2485 .rport_event_callback = bnx2fc_rport_event_handler,
2486};
2487
2488/**
2489 * bnx2fc_cnic_cb - global template of bnx2fc - cnic driver interface
2490 * structure carrying callback function pointers
2491 */
2492static struct cnic_ulp_ops bnx2fc_cnic_cb = {
2493 .owner = THIS_MODULE,
2494 .cnic_init = bnx2fc_ulp_init,
2495 .cnic_exit = bnx2fc_ulp_exit,
2496 .cnic_start = bnx2fc_ulp_start,
2497 .cnic_stop = bnx2fc_ulp_stop,
2498 .indicate_kcqes = bnx2fc_indicate_kcqe,
2499 .indicate_netevent = bnx2fc_indicate_netevent,
2500};
Linux 6.x block layer and io_uring tree(s)