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[SCSI] bnx2fc: Reorganize cleanup code between interface_cleanup and if_destory
[linux-2.6-block.git] / drivers / scsi / bnx2fc / bnx2fc_fcoe.c
CommitLineData
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 *
9b35baae 6 * Copyright (c) 2008 - 2011 Broadcom Corporation
853e2bd2
BG		 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;
aea71a02 18static struct list_head if_list;
853e2bd2
BG		 19static u32 adapter_count;
20static DEFINE_MUTEX(bnx2fc_dev_lock);
21DEFINE_PER_CPU(struct bnx2fc_percpu_s, bnx2fc_percpu);
22
23#define DRV_MODULE_NAME "bnx2fc"
24#define DRV_MODULE_VERSION BNX2FC_VERSION
9b35baae 25#define DRV_MODULE_RELDATE "Jun 23, 2011"
853e2bd2
BG		 26
27
28static char version[] __devinitdata =
29 "Broadcom NetXtreme II FCoE Driver " DRV_MODULE_NAME \
30 " v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n";
31
32
33MODULE_AUTHOR("Bhanu Prakash Gollapudi <bprakash@broadcom.com>");
34MODULE_DESCRIPTION("Broadcom NetXtreme II BCM57710 FCoE Driver");
35MODULE_LICENSE("GPL");
36MODULE_VERSION(DRV_MODULE_VERSION);
37
38#define BNX2FC_MAX_QUEUE_DEPTH 256
39#define BNX2FC_MIN_QUEUE_DEPTH 32
40#define FCOE_WORD_TO_BYTE 4
41
42static struct scsi_transport_template *bnx2fc_transport_template;
43static struct scsi_transport_template *bnx2fc_vport_xport_template;
44
45struct workqueue_struct *bnx2fc_wq;
46
47/* bnx2fc structure needs only one instance of the fcoe_percpu_s structure.
48 * Here the io threads are per cpu but the l2 thread is just one
49 */
50struct fcoe_percpu_s bnx2fc_global;
51DEFINE_SPINLOCK(bnx2fc_global_lock);
52
53static struct cnic_ulp_ops bnx2fc_cnic_cb;
54static struct libfc_function_template bnx2fc_libfc_fcn_templ;
55static struct scsi_host_template bnx2fc_shost_template;
56static struct fc_function_template bnx2fc_transport_function;
57static struct fc_function_template bnx2fc_vport_xport_function;
58static int bnx2fc_create(struct net_device *netdev, enum fip_state fip_mode);
59static int bnx2fc_destroy(struct net_device *net_device);
60static int bnx2fc_enable(struct net_device *netdev);
61static int bnx2fc_disable(struct net_device *netdev);
62
63static void bnx2fc_recv_frame(struct sk_buff *skb);
64
aea71a02 65static void bnx2fc_start_disc(struct bnx2fc_interface *interface);
853e2bd2
BG		 66static int bnx2fc_shost_config(struct fc_lport *lport, struct device *dev);
67static int bnx2fc_net_config(struct fc_lport *lp);
68static int bnx2fc_lport_config(struct fc_lport *lport);
69static int bnx2fc_em_config(struct fc_lport *lport);
70static int bnx2fc_bind_adapter_devices(struct bnx2fc_hba *hba);
71static void bnx2fc_unbind_adapter_devices(struct bnx2fc_hba *hba);
72static int bnx2fc_bind_pcidev(struct bnx2fc_hba *hba);
73static void bnx2fc_unbind_pcidev(struct bnx2fc_hba *hba);
aea71a02 74static struct fc_lport *bnx2fc_if_create(struct bnx2fc_interface *interface,
853e2bd2
BG		 75 struct device *parent, int npiv);
76static void bnx2fc_destroy_work(struct work_struct *work);
77
78static struct bnx2fc_hba *bnx2fc_hba_lookup(struct net_device *phys_dev);
aea71a02
BPG		 79static struct bnx2fc_interface *bnx2fc_interface_lookup(struct net_device
80 *phys_dev);
853e2bd2
BG		 81static struct bnx2fc_hba *bnx2fc_find_hba_for_cnic(struct cnic_dev *cnic);
82
83static int bnx2fc_fw_init(struct bnx2fc_hba *hba);
84static void bnx2fc_fw_destroy(struct bnx2fc_hba *hba);
85
86static void bnx2fc_port_shutdown(struct fc_lport *lport);
aea71a02 87static void bnx2fc_stop(struct bnx2fc_interface *interface);
853e2bd2
BG		 88static int __init bnx2fc_mod_init(void);
89static void __exit bnx2fc_mod_exit(void);
90
91unsigned int bnx2fc_debug_level;
92module_param_named(debug_logging, bnx2fc_debug_level, int, S_IRUGO|S_IWUSR);
93
94static int bnx2fc_cpu_callback(struct notifier_block *nfb,
95 unsigned long action, void *hcpu);
96/* notification function for CPU hotplug events */
97static struct notifier_block bnx2fc_cpu_notifier = {
98 .notifier_call = bnx2fc_cpu_callback,
99};
100
101static void bnx2fc_clean_rx_queue(struct fc_lport *lp)
102{
103 struct fcoe_percpu_s *bg;
104 struct fcoe_rcv_info *fr;
105 struct sk_buff_head *list;
106 struct sk_buff *skb, *next;
107 struct sk_buff *head;
108
109 bg = &bnx2fc_global;
110 spin_lock_bh(&bg->fcoe_rx_list.lock);
111 list = &bg->fcoe_rx_list;
112 head = list->next;
113 for (skb = head; skb != (struct sk_buff *)list;
114 skb = next) {
115 next = skb->next;
116 fr = fcoe_dev_from_skb(skb);
117 if (fr->fr_dev == lp) {
118 __skb_unlink(skb, list);
119 kfree_skb(skb);
120 }
121 }
122 spin_unlock_bh(&bg->fcoe_rx_list.lock);
123}
124
125int bnx2fc_get_paged_crc_eof(struct sk_buff *skb, int tlen)
126{
127 int rc;
128 spin_lock(&bnx2fc_global_lock);
129 rc = fcoe_get_paged_crc_eof(skb, tlen, &bnx2fc_global);
130 spin_unlock(&bnx2fc_global_lock);
131
132 return rc;
133}
134
135static void bnx2fc_abort_io(struct fc_lport *lport)
136{
137 /*
138 * This function is no-op for bnx2fc, but we do
139 * not want to leave it as NULL either, as libfc
140 * can call the default function which is
141 * fc_fcp_abort_io.
142 */
143}
144
145static void bnx2fc_cleanup(struct fc_lport *lport)
146{
147 struct fcoe_port *port = lport_priv(lport);
aea71a02
BPG		 148 struct bnx2fc_interface *interface = port->priv;
149 struct bnx2fc_hba *hba = interface->hba;
853e2bd2
BG		 150 struct bnx2fc_rport *tgt;
151 int i;
152
153 BNX2FC_MISC_DBG("Entered %s\n", __func__);
154 mutex_lock(&hba->hba_mutex);
155 spin_lock_bh(&hba->hba_lock);
156 for (i = 0; i < BNX2FC_NUM_MAX_SESS; i++) {
157 tgt = hba->tgt_ofld_list[i];
158 if (tgt) {
159 /* Cleanup IOs belonging to requested vport */
160 if (tgt->port == port) {
161 spin_unlock_bh(&hba->hba_lock);
162 BNX2FC_TGT_DBG(tgt, "flush/cleanup\n");
163 bnx2fc_flush_active_ios(tgt);
164 spin_lock_bh(&hba->hba_lock);
165 }
166 }
167 }
168 spin_unlock_bh(&hba->hba_lock);
169 mutex_unlock(&hba->hba_mutex);
170}
171
172static int bnx2fc_xmit_l2_frame(struct bnx2fc_rport *tgt,
173 struct fc_frame *fp)
174{
175 struct fc_rport_priv *rdata = tgt->rdata;
176 struct fc_frame_header *fh;
177 int rc = 0;
178
179 fh = fc_frame_header_get(fp);
180 BNX2FC_TGT_DBG(tgt, "Xmit L2 frame rport = 0x%x, oxid = 0x%x, "
181 "r_ctl = 0x%x\n", rdata->ids.port_id,
182 ntohs(fh->fh_ox_id), fh->fh_r_ctl);
183 if ((fh->fh_type == FC_TYPE_ELS) &&
184 (fh->fh_r_ctl == FC_RCTL_ELS_REQ)) {
185
186 switch (fc_frame_payload_op(fp)) {
187 case ELS_ADISC:
188 rc = bnx2fc_send_adisc(tgt, fp);
189 break;
190 case ELS_LOGO:
191 rc = bnx2fc_send_logo(tgt, fp);
192 break;
193 case ELS_RLS:
194 rc = bnx2fc_send_rls(tgt, fp);
195 break;
196 default:
197 break;
198 }
199 } else if ((fh->fh_type == FC_TYPE_BLS) &&
200 (fh->fh_r_ctl == FC_RCTL_BA_ABTS))
201 BNX2FC_TGT_DBG(tgt, "ABTS frame\n");
202 else {
203 BNX2FC_TGT_DBG(tgt, "Send L2 frame type 0x%x "
204 "rctl 0x%x thru non-offload path\n",
205 fh->fh_type, fh->fh_r_ctl);
206 return -ENODEV;
207 }
208 if (rc)
209 return -ENOMEM;
210 else
211 return 0;
212}
213
214/**
215 * bnx2fc_xmit - bnx2fc's FCoE frame transmit function
216 *
217 * @lport: the associated local port
218 * @fp: the fc_frame to be transmitted
219 */
220static int bnx2fc_xmit(struct fc_lport *lport, struct fc_frame *fp)
221{
222 struct ethhdr *eh;
223 struct fcoe_crc_eof *cp;
224 struct sk_buff *skb;
225 struct fc_frame_header *fh;
aea71a02
BPG		 226 struct bnx2fc_interface *interface;
227 struct bnx2fc_hba *hba;
853e2bd2
BG		 228 struct fcoe_port *port;
229 struct fcoe_hdr *hp;
230 struct bnx2fc_rport *tgt;
231 struct fcoe_dev_stats *stats;
232 u8 sof, eof;
233 u32 crc;
234 unsigned int hlen, tlen, elen;
235 int wlen, rc = 0;
236
237 port = (struct fcoe_port *)lport_priv(lport);
aea71a02
BPG		 238 interface = port->priv;
239 hba = interface->hba;
853e2bd2
BG		 240
241 fh = fc_frame_header_get(fp);
242
243 skb = fp_skb(fp);
244 if (!lport->link_up) {
245 BNX2FC_HBA_DBG(lport, "bnx2fc_xmit link down\n");
246 kfree_skb(skb);
247 return 0;
248 }
249
250 if (unlikely(fh->fh_r_ctl == FC_RCTL_ELS_REQ)) {
aea71a02 251 if (!interface->ctlr.sel_fcf) {
853e2bd2
BG		 252 BNX2FC_HBA_DBG(lport, "FCF not selected yet!\n");
253 kfree_skb(skb);
254 return -EINVAL;
255 }
aea71a02 256 if (fcoe_ctlr_els_send(&interface->ctlr, lport, skb))
853e2bd2
BG		 257 return 0;
258 }
259
260 sof = fr_sof(fp);
261 eof = fr_eof(fp);
262
263 /*
264 * Snoop the frame header to check if the frame is for
265 * an offloaded session
266 */
267 /*
268 * tgt_ofld_list access is synchronized using
269 * both hba mutex and hba lock. Atleast hba mutex or
270 * hba lock needs to be held for read access.
271 */
272
273 spin_lock_bh(&hba->hba_lock);
274 tgt = bnx2fc_tgt_lookup(port, ntoh24(fh->fh_d_id));
275 if (tgt && (test_bit(BNX2FC_FLAG_SESSION_READY, &tgt->flags))) {
276 /* This frame is for offloaded session */
277 BNX2FC_HBA_DBG(lport, "xmit: Frame is for offloaded session "
278 "port_id = 0x%x\n", ntoh24(fh->fh_d_id));
279 spin_unlock_bh(&hba->hba_lock);
280 rc = bnx2fc_xmit_l2_frame(tgt, fp);
281 if (rc != -ENODEV) {
282 kfree_skb(skb);
283 return rc;
284 }
285 } else {
286 spin_unlock_bh(&hba->hba_lock);
287 }
288
289 elen = sizeof(struct ethhdr);
290 hlen = sizeof(struct fcoe_hdr);
291 tlen = sizeof(struct fcoe_crc_eof);
292 wlen = (skb->len - tlen + sizeof(crc)) / FCOE_WORD_TO_BYTE;
293
294 skb->ip_summed = CHECKSUM_NONE;
295 crc = fcoe_fc_crc(fp);
296
297 /* copy port crc and eof to the skb buff */
298 if (skb_is_nonlinear(skb)) {
299 skb_frag_t *frag;
300 if (bnx2fc_get_paged_crc_eof(skb, tlen)) {
301 kfree_skb(skb);
302 return -ENOMEM;
303 }
304 frag = &skb_shinfo(skb)->frags[skb_shinfo(skb)->nr_frags - 1];
305 cp = kmap_atomic(frag->page, KM_SKB_DATA_SOFTIRQ)
306 + frag->page_offset;
307 } else {
308 cp = (struct fcoe_crc_eof *)skb_put(skb, tlen);
309 }
310
311 memset(cp, 0, sizeof(*cp));
312 cp->fcoe_eof = eof;
313 cp->fcoe_crc32 = cpu_to_le32(~crc);
314 if (skb_is_nonlinear(skb)) {
315 kunmap_atomic(cp, KM_SKB_DATA_SOFTIRQ);
316 cp = NULL;
317 }
318
319 /* adjust skb network/transport offsets to match mac/fcoe/port */
320 skb_push(skb, elen + hlen);
321 skb_reset_mac_header(skb);
322 skb_reset_network_header(skb);
323 skb->mac_len = elen;
324 skb->protocol = htons(ETH_P_FCOE);
aea71a02 325 skb->dev = interface->netdev;
853e2bd2
BG		 326
327 /* fill up mac and fcoe headers */
328 eh = eth_hdr(skb);
329 eh->h_proto = htons(ETH_P_FCOE);
aea71a02 330 if (interface->ctlr.map_dest)
853e2bd2
BG		 331 fc_fcoe_set_mac(eh->h_dest, fh->fh_d_id);
332 else
333 /* insert GW address */
aea71a02 334 memcpy(eh->h_dest, interface->ctlr.dest_addr, ETH_ALEN);
853e2bd2 335
aea71a02
BPG		 336 if (unlikely(interface->ctlr.flogi_oxid != FC_XID_UNKNOWN))
337 memcpy(eh->h_source, interface->ctlr.ctl_src_addr, ETH_ALEN);
853e2bd2
BG		 338 else
339 memcpy(eh->h_source, port->data_src_addr, ETH_ALEN);
340
341 hp = (struct fcoe_hdr *)(eh + 1);
342 memset(hp, 0, sizeof(*hp));
343 if (FC_FCOE_VER)
344 FC_FCOE_ENCAPS_VER(hp, FC_FCOE_VER);
345 hp->fcoe_sof = sof;
346
347 /* fcoe lso, mss is in max_payload which is non-zero for FCP data */
348 if (lport->seq_offload && fr_max_payload(fp)) {
349 skb_shinfo(skb)->gso_type = SKB_GSO_FCOE;
350 skb_shinfo(skb)->gso_size = fr_max_payload(fp);
351 } else {
352 skb_shinfo(skb)->gso_type = 0;
353 skb_shinfo(skb)->gso_size = 0;
354 }
355
356 /*update tx stats */
357 stats = per_cpu_ptr(lport->dev_stats, get_cpu());
358 stats->TxFrames++;
359 stats->TxWords += wlen;
360 put_cpu();
361
362 /* send down to lld */
363 fr_dev(fp) = lport;
364 if (port->fcoe_pending_queue.qlen)
365 fcoe_check_wait_queue(lport, skb);
366 else if (fcoe_start_io(skb))
367 fcoe_check_wait_queue(lport, skb);
368
369 return 0;
370}
371
372/**
373 * bnx2fc_rcv - This is bnx2fc's receive function called by NET_RX_SOFTIRQ
374 *
375 * @skb: the receive socket buffer
376 * @dev: associated net device
377 * @ptype: context
378 * @olddev: last device
379 *
380 * This function receives the packet and builds FC frame and passes it up
381 */
382static int bnx2fc_rcv(struct sk_buff *skb, struct net_device *dev,
383 struct packet_type *ptype, struct net_device *olddev)
384{
385 struct fc_lport *lport;
aea71a02 386 struct bnx2fc_interface *interface;
853e2bd2
BG		 387 struct fc_frame_header *fh;
388 struct fcoe_rcv_info *fr;
389 struct fcoe_percpu_s *bg;
390 unsigned short oxid;
391
aea71a02
BPG		 392 interface = container_of(ptype, struct bnx2fc_interface,
393 fcoe_packet_type);
394 lport = interface->ctlr.lp;
853e2bd2
BG		 395
396 if (unlikely(lport == NULL)) {
b2a554ff 397 printk(KERN_ERR PFX "bnx2fc_rcv: lport is NULL\n");
853e2bd2
BG		 398 goto err;
399 }
400
401 if (unlikely(eth_hdr(skb)->h_proto != htons(ETH_P_FCOE))) {
b2a554ff 402 printk(KERN_ERR PFX "bnx2fc_rcv: Wrong FC type frame\n");
853e2bd2
BG		 403 goto err;
404 }
405
406 /*
407 * Check for minimum frame length, and make sure required FCoE
408 * and FC headers are pulled into the linear data area.
409 */
410 if (unlikely((skb->len < FCOE_MIN_FRAME) ||
411 !pskb_may_pull(skb, FCOE_HEADER_LEN)))
412 goto err;
413
414 skb_set_transport_header(skb, sizeof(struct fcoe_hdr));
415 fh = (struct fc_frame_header *) skb_transport_header(skb);
416
417 oxid = ntohs(fh->fh_ox_id);
418
419 fr = fcoe_dev_from_skb(skb);
420 fr->fr_dev = lport;
853e2bd2
BG		 421
422 bg = &bnx2fc_global;
423 spin_lock_bh(&bg->fcoe_rx_list.lock);
424
425 __skb_queue_tail(&bg->fcoe_rx_list, skb);
426 if (bg->fcoe_rx_list.qlen == 1)
427 wake_up_process(bg->thread);
428
429 spin_unlock_bh(&bg->fcoe_rx_list.lock);
430
431 return 0;
432err:
433 kfree_skb(skb);
434 return -1;
435}
436
437static int bnx2fc_l2_rcv_thread(void *arg)
438{
439 struct fcoe_percpu_s *bg = arg;
440 struct sk_buff *skb;
441
442 set_user_nice(current, -20);
443 set_current_state(TASK_INTERRUPTIBLE);
444 while (!kthread_should_stop()) {
445 schedule();
853e2bd2
BG		 446 spin_lock_bh(&bg->fcoe_rx_list.lock);
447 while ((skb = __skb_dequeue(&bg->fcoe_rx_list)) != NULL) {
448 spin_unlock_bh(&bg->fcoe_rx_list.lock);
449 bnx2fc_recv_frame(skb);
450 spin_lock_bh(&bg->fcoe_rx_list.lock);
451 }
fee78712 452 __set_current_state(TASK_INTERRUPTIBLE);
853e2bd2 453 spin_unlock_bh(&bg->fcoe_rx_list.lock);
853e2bd2 454 }
fee78712 455 __set_current_state(TASK_RUNNING);
853e2bd2
BG		 456 return 0;
457}
458
459
460static void bnx2fc_recv_frame(struct sk_buff *skb)
461{
462 u32 fr_len;
463 struct fc_lport *lport;
464 struct fcoe_rcv_info *fr;
465 struct fcoe_dev_stats *stats;
466 struct fc_frame_header *fh;
467 struct fcoe_crc_eof crc_eof;
468 struct fc_frame *fp;
469 struct fc_lport *vn_port;
470 struct fcoe_port *port;
471 u8 *mac = NULL;
472 u8 *dest_mac = NULL;
473 struct fcoe_hdr *hp;
474
475 fr = fcoe_dev_from_skb(skb);
476 lport = fr->fr_dev;
477 if (unlikely(lport == NULL)) {
b2a554ff 478 printk(KERN_ERR PFX "Invalid lport struct\n");
853e2bd2
BG		 479 kfree_skb(skb);
480 return;
481 }
482
483 if (skb_is_nonlinear(skb))
484 skb_linearize(skb);
485 mac = eth_hdr(skb)->h_source;
486 dest_mac = eth_hdr(skb)->h_dest;
487
488 /* Pull the header */
489 hp = (struct fcoe_hdr *) skb_network_header(skb);
490 fh = (struct fc_frame_header *) skb_transport_header(skb);
491 skb_pull(skb, sizeof(struct fcoe_hdr));
492 fr_len = skb->len - sizeof(struct fcoe_crc_eof);
493
494 stats = per_cpu_ptr(lport->dev_stats, get_cpu());
495 stats->RxFrames++;
496 stats->RxWords += fr_len / FCOE_WORD_TO_BYTE;
497
498 fp = (struct fc_frame *)skb;
499 fc_frame_init(fp);
500 fr_dev(fp) = lport;
501 fr_sof(fp) = hp->fcoe_sof;
502 if (skb_copy_bits(skb, fr_len, &crc_eof, sizeof(crc_eof))) {
503 put_cpu();
504 kfree_skb(skb);
505 return;
506 }
507 fr_eof(fp) = crc_eof.fcoe_eof;
508 fr_crc(fp) = crc_eof.fcoe_crc32;
509 if (pskb_trim(skb, fr_len)) {
510 put_cpu();
511 kfree_skb(skb);
512 return;
513 }
514
515 fh = fc_frame_header_get(fp);
516
517 vn_port = fc_vport_id_lookup(lport, ntoh24(fh->fh_d_id));
518 if (vn_port) {
519 port = lport_priv(vn_port);
520 if (compare_ether_addr(port->data_src_addr, dest_mac)
521 != 0) {
522 BNX2FC_HBA_DBG(lport, "fpma mismatch\n");
523 put_cpu();
524 kfree_skb(skb);
525 return;
526 }
527 }
528 if (fh->fh_r_ctl == FC_RCTL_DD_SOL_DATA &&
529 fh->fh_type == FC_TYPE_FCP) {
530 /* Drop FCP data. We dont this in L2 path */
531 put_cpu();
532 kfree_skb(skb);
533 return;
534 }
535 if (fh->fh_r_ctl == FC_RCTL_ELS_REQ &&
536 fh->fh_type == FC_TYPE_ELS) {
537 switch (fc_frame_payload_op(fp)) {
538 case ELS_LOGO:
539 if (ntoh24(fh->fh_s_id) == FC_FID_FLOGI) {
540 /* drop non-FIP LOGO */
541 put_cpu();
542 kfree_skb(skb);
543 return;
544 }
545 break;
546 }
547 }
548 if (le32_to_cpu(fr_crc(fp)) !=
549 ~crc32(~0, skb->data, fr_len)) {
550 if (stats->InvalidCRCCount < 5)
551 printk(KERN_WARNING PFX "dropping frame with "
552 "CRC error\n");
553 stats->InvalidCRCCount++;
554 put_cpu();
555 kfree_skb(skb);
556 return;
557 }
558 put_cpu();
559 fc_exch_recv(lport, fp);
560}
561
562/**
563 * bnx2fc_percpu_io_thread - thread per cpu for ios
564 *
565 * @arg: ptr to bnx2fc_percpu_info structure
566 */
567int bnx2fc_percpu_io_thread(void *arg)
568{
569 struct bnx2fc_percpu_s *p = arg;
570 struct bnx2fc_work *work, *tmp;
571 LIST_HEAD(work_list);
572
573 set_user_nice(current, -20);
574 set_current_state(TASK_INTERRUPTIBLE);
575 while (!kthread_should_stop()) {
576 schedule();
853e2bd2
BG		 577 spin_lock_bh(&p->fp_work_lock);
578 while (!list_empty(&p->work_list)) {
579 list_splice_init(&p->work_list, &work_list);
580 spin_unlock_bh(&p->fp_work_lock);
581
582 list_for_each_entry_safe(work, tmp, &work_list, list) {
583 list_del_init(&work->list);
584 bnx2fc_process_cq_compl(work->tgt, work->wqe);
585 kfree(work);
586 }
587
588 spin_lock_bh(&p->fp_work_lock);
589 }
fee78712 590 __set_current_state(TASK_INTERRUPTIBLE);
853e2bd2 591 spin_unlock_bh(&p->fp_work_lock);
853e2bd2 592 }
fee78712 593 __set_current_state(TASK_RUNNING);
853e2bd2
BG		 594
595 return 0;
596}
597
598static struct fc_host_statistics *bnx2fc_get_host_stats(struct Scsi_Host *shost)
599{
600 struct fc_host_statistics *bnx2fc_stats;
601 struct fc_lport *lport = shost_priv(shost);
602 struct fcoe_port *port = lport_priv(lport);
aea71a02
BPG		 603 struct bnx2fc_interface *interface = port->priv;
604 struct bnx2fc_hba *hba = interface->hba;
853e2bd2
BG		 605 struct fcoe_statistics_params *fw_stats;
606 int rc = 0;
607
608 fw_stats = (struct fcoe_statistics_params *)hba->stats_buffer;
609 if (!fw_stats)
610 return NULL;
611
612 bnx2fc_stats = fc_get_host_stats(shost);
613
614 init_completion(&hba->stat_req_done);
615 if (bnx2fc_send_stat_req(hba))
616 return bnx2fc_stats;
617 rc = wait_for_completion_timeout(&hba->stat_req_done, (2 * HZ));
618 if (!rc) {
619 BNX2FC_HBA_DBG(lport, "FW stat req timed out\n");
620 return bnx2fc_stats;
621 }
619c5cb6 622 bnx2fc_stats->invalid_crc_count += fw_stats->rx_stat2.fc_crc_cnt;
853e2bd2
BG		 623 bnx2fc_stats->tx_frames += fw_stats->tx_stat.fcoe_tx_pkt_cnt;
624 bnx2fc_stats->tx_words += (fw_stats->tx_stat.fcoe_tx_byte_cnt) / 4;
625 bnx2fc_stats->rx_frames += fw_stats->rx_stat0.fcoe_rx_pkt_cnt;
626 bnx2fc_stats->rx_words += (fw_stats->rx_stat0.fcoe_rx_byte_cnt) / 4;
627
628 bnx2fc_stats->dumped_frames = 0;
629 bnx2fc_stats->lip_count = 0;
630 bnx2fc_stats->nos_count = 0;
631 bnx2fc_stats->loss_of_sync_count = 0;
632 bnx2fc_stats->loss_of_signal_count = 0;
633 bnx2fc_stats->prim_seq_protocol_err_count = 0;
634
635 return bnx2fc_stats;
636}
637
638static int bnx2fc_shost_config(struct fc_lport *lport, struct device *dev)
639{
640 struct fcoe_port *port = lport_priv(lport);
aea71a02 641 struct bnx2fc_interface *interface = port->priv;
853e2bd2
BG		 642 struct Scsi_Host *shost = lport->host;
643 int rc = 0;
644
645 shost->max_cmd_len = BNX2FC_MAX_CMD_LEN;
646 shost->max_lun = BNX2FC_MAX_LUN;
647 shost->max_id = BNX2FC_MAX_FCP_TGT;
648 shost->max_channel = 0;
649 if (lport->vport)
650 shost->transportt = bnx2fc_vport_xport_template;
651 else
652 shost->transportt = bnx2fc_transport_template;
653
654 /* Add the new host to SCSI-ml */
655 rc = scsi_add_host(lport->host, dev);
656 if (rc) {
657 printk(KERN_ERR PFX "Error on scsi_add_host\n");
658 return rc;
659 }
660 if (!lport->vport)
661 fc_host_max_npiv_vports(lport->host) = USHRT_MAX;
662 sprintf(fc_host_symbolic_name(lport->host), "%s v%s over %s",
663 BNX2FC_NAME, BNX2FC_VERSION,
aea71a02 664 interface->netdev->name);
853e2bd2
BG		 665
666 return 0;
667}
668
853e2bd2
BG		 669static void bnx2fc_link_speed_update(struct fc_lport *lport)
670{
671 struct fcoe_port *port = lport_priv(lport);
aea71a02
BPG		 672 struct bnx2fc_interface *interface = port->priv;
673 struct net_device *netdev = interface->netdev;
8ae6daca 674 struct ethtool_cmd ecmd;
853e2bd2
BG		 675
676 if (!dev_ethtool_get_settings(netdev, &ecmd)) {
677 lport->link_supported_speeds &=
678 ~(FC_PORTSPEED_1GBIT | FC_PORTSPEED_10GBIT);
679 if (ecmd.supported & (SUPPORTED_1000baseT_Half |
680 SUPPORTED_1000baseT_Full))
681 lport->link_supported_speeds |= FC_PORTSPEED_1GBIT;
682 if (ecmd.supported & SUPPORTED_10000baseT_Full)
683 lport->link_supported_speeds |= FC_PORTSPEED_10GBIT;
684
8ae6daca
DD		 685 switch (ethtool_cmd_speed(&ecmd)) {
686 case SPEED_1000:
853e2bd2 687 lport->link_speed = FC_PORTSPEED_1GBIT;
8ae6daca 688 break;
a4dc08ce
BPG		 689 case SPEED_2500:
690 lport->link_speed = FC_PORTSPEED_2GBIT;
691 break;
8ae6daca 692 case SPEED_10000:
853e2bd2 693 lport->link_speed = FC_PORTSPEED_10GBIT;
8ae6daca
DD		 694 break;
695 }
853e2bd2 696 }
853e2bd2
BG		 697}
698static int bnx2fc_link_ok(struct fc_lport *lport)
699{
700 struct fcoe_port *port = lport_priv(lport);
aea71a02
BPG		 701 struct bnx2fc_interface *interface = port->priv;
702 struct bnx2fc_hba *hba = interface->hba;
853e2bd2
BG		 703 struct net_device *dev = hba->phys_dev;
704 int rc = 0;
705
706 if ((dev->flags & IFF_UP) && netif_carrier_ok(dev))
707 clear_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
708 else {
709 set_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
710 rc = -1;
711 }
712 return rc;
713}
714
715/**
716 * bnx2fc_get_link_state - get network link state
717 *
718 * @hba: adapter instance pointer
719 *
720 * updates adapter structure flag based on netdev state
721 */
722void bnx2fc_get_link_state(struct bnx2fc_hba *hba)
723{
aea71a02 724 if (test_bit(__LINK_STATE_NOCARRIER, &hba->phys_dev->state))
853e2bd2
BG		 725 set_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
726 else
727 clear_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
728}
729
730static int bnx2fc_net_config(struct fc_lport *lport)
731{
732 struct bnx2fc_hba *hba;
aea71a02 733 struct bnx2fc_interface *interface;
853e2bd2
BG		 734 struct fcoe_port *port;
735 u64 wwnn, wwpn;
736
737 port = lport_priv(lport);
aea71a02
BPG		 738 interface = port->priv;
739 hba = interface->hba;
853e2bd2
BG		 740
741 /* require support for get_pauseparam ethtool op. */
742 if (!hba->phys_dev->ethtool_ops ||
743 !hba->phys_dev->ethtool_ops->get_pauseparam)
744 return -EOPNOTSUPP;
745
1294bfe6 746 if (fc_set_mfs(lport, BNX2FC_MFS))
853e2bd2
BG		 747 return -EINVAL;
748
749 skb_queue_head_init(&port->fcoe_pending_queue);
750 port->fcoe_pending_queue_active = 0;
751 setup_timer(&port->timer, fcoe_queue_timer, (unsigned long) lport);
752
753 bnx2fc_link_speed_update(lport);
754
755 if (!lport->vport) {
aea71a02 756 wwnn = fcoe_wwn_from_mac(interface->ctlr.ctl_src_addr, 1, 0);
853e2bd2
BG		 757 BNX2FC_HBA_DBG(lport, "WWNN = 0x%llx\n", wwnn);
758 fc_set_wwnn(lport, wwnn);
759
aea71a02 760 wwpn = fcoe_wwn_from_mac(interface->ctlr.ctl_src_addr, 2, 0);
853e2bd2
BG		 761 BNX2FC_HBA_DBG(lport, "WWPN = 0x%llx\n", wwpn);
762 fc_set_wwpn(lport, wwpn);
763 }
764
765 return 0;
766}
767
768static void bnx2fc_destroy_timer(unsigned long data)
769{
770 struct bnx2fc_hba *hba = (struct bnx2fc_hba *)data;
771
aea71a02 772 BNX2FC_MISC_DBG("ERROR:bnx2fc_destroy_timer - "
853e2bd2 773 "Destroy compl not received!!\n");
aea71a02 774 set_bit(BNX2FC_FLAG_DESTROY_CMPL, &hba->flags);
853e2bd2
BG		 775 wake_up_interruptible(&hba->destroy_wait);
776}
777
778/**
779 * bnx2fc_indicate_netevent - Generic netdev event handler
780 *
781 * @context: adapter structure pointer
782 * @event: event type
415199f2 783 * @vlan_id: vlan id - associated vlan id with this event
853e2bd2
BG		 784 *
785 * Handles NETDEV_UP, NETDEV_DOWN, NETDEV_GOING_DOWN,NETDEV_CHANGE and
786 * NETDEV_CHANGE_MTU events
787 */
415199f2
MC		 788static void bnx2fc_indicate_netevent(void *context, unsigned long event,
789 u16 vlan_id)
853e2bd2
BG		 790{
791 struct bnx2fc_hba *hba = (struct bnx2fc_hba *)context;
aea71a02 792 struct fc_lport *lport;
853e2bd2 793 struct fc_lport *vport;
aea71a02
BPG		 794 struct bnx2fc_interface *interface;
795 int wait_for_upload = 0;
853e2bd2
BG		 796 u32 link_possible = 1;
797
415199f2
MC		 798 /* Ignore vlans for now */
799 if (vlan_id != 0)
800 return;
801
853e2bd2
BG		 802 switch (event) {
803 case NETDEV_UP:
853e2bd2
BG		 804 if (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state))
805 printk(KERN_ERR "indicate_netevent: "\
aea71a02 806 "hba is not UP!!\n");
853e2bd2
BG		 807 break;
808
809 case NETDEV_DOWN:
853e2bd2
BG		 810 clear_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state);
811 clear_bit(ADAPTER_STATE_UP, &hba->adapter_state);
812 link_possible = 0;
813 break;
814
815 case NETDEV_GOING_DOWN:
853e2bd2
BG		 816 set_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state);
817 link_possible = 0;
818 break;
819
820 case NETDEV_CHANGE:
853e2bd2
BG		 821 break;
822
823 default:
824 printk(KERN_ERR PFX "Unkonwn netevent %ld", event);
825 return;
826 }
827
aea71a02
BPG		 828 mutex_lock(&bnx2fc_dev_lock);
829 list_for_each_entry(interface, &if_list, list) {
853e2bd2 830
aea71a02
BPG		 831 if (interface->hba != hba)
832 continue;
833
834 lport = interface->ctlr.lp;
835 BNX2FC_HBA_DBG(lport, "netevent handler - event=%s %ld\n",
836 interface->netdev->name, event);
837
838 bnx2fc_link_speed_update(lport);
839
840 if (link_possible && !bnx2fc_link_ok(lport)) {
841 printk(KERN_ERR "indicate_netevent: ctlr_link_up\n");
842 fcoe_ctlr_link_up(&interface->ctlr);
843 } else if (fcoe_ctlr_link_down(&interface->ctlr)) {
853e2bd2
BG		 844 mutex_lock(&lport->lp_mutex);
845 list_for_each_entry(vport, &lport->vports, list)
846 fc_host_port_type(vport->host) =
847 FC_PORTTYPE_UNKNOWN;
848 mutex_unlock(&lport->lp_mutex);
849 fc_host_port_type(lport->host) = FC_PORTTYPE_UNKNOWN;
850 per_cpu_ptr(lport->dev_stats,
851 get_cpu())->LinkFailureCount++;
852 put_cpu();
853 fcoe_clean_pending_queue(lport);
aea71a02
BPG		 854 wait_for_upload = 1;
855 }
856 }
857 mutex_unlock(&bnx2fc_dev_lock);
853e2bd2 858
aea71a02
BPG		 859 if (wait_for_upload) {
860 clear_bit(ADAPTER_STATE_READY, &hba->adapter_state);
861 init_waitqueue_head(&hba->shutdown_wait);
862 BNX2FC_MISC_DBG("indicate_netevent "
863 "num_ofld_sess = %d\n",
864 hba->num_ofld_sess);
865 hba->wait_for_link_down = 1;
866 wait_event_interruptible(hba->shutdown_wait,
867 (hba->num_ofld_sess == 0));
868 BNX2FC_MISC_DBG("wakeup - num_ofld_sess = %d\n",
853e2bd2 869 hba->num_ofld_sess);
aea71a02 870 hba->wait_for_link_down = 0;
853e2bd2 871
aea71a02
BPG		 872 if (signal_pending(current))
873 flush_signals(current);
853e2bd2
BG		 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{
853e2bd2
BG		 892 if (!fc_exch_mgr_alloc(lport, FC_CLASS_3, FCOE_MIN_XID,
893 FCOE_MAX_XID, NULL)) {
894 printk(KERN_ERR PFX "em_config:fc_exch_mgr_alloc failed\n");
895 return -ENOMEM;
896 }
897
853e2bd2
BG		 898 return 0;
899}
900
901static int bnx2fc_lport_config(struct fc_lport *lport)
902{
903 lport->link_up = 0;
904 lport->qfull = 0;
905 lport->max_retry_count = 3;
906 lport->max_rport_retry_count = 3;
907 lport->e_d_tov = 2 * 1000;
908 lport->r_a_tov = 10 * 1000;
909
853e2bd2
BG		 910 lport->service_params = (FCP_SPPF_INIT_FCN | FCP_SPPF_RD_XRDY_DIS |
911 FCP_SPPF_RETRY | FCP_SPPF_CONF_COMPL);
853e2bd2
BG		 912 lport->does_npiv = 1;
913
914 memset(&lport->rnid_gen, 0, sizeof(struct fc_els_rnid_gen));
915 lport->rnid_gen.rnid_atype = BNX2FC_RNID_HBA;
916
917 /* alloc stats structure */
918 if (fc_lport_init_stats(lport))
919 return -ENOMEM;
920
921 /* Finish fc_lport configuration */
922 fc_lport_config(lport);
923
924 return 0;
925}
926
927/**
928 * bnx2fc_fip_recv - handle a received FIP frame.
929 *
930 * @skb: the received skb
931 * @dev: associated &net_device
932 * @ptype: the &packet_type structure which was used to register this handler.
933 * @orig_dev: original receive &net_device, in case @ dev is a bond.
934 *
935 * Returns: 0 for success
936 */
937static int bnx2fc_fip_recv(struct sk_buff *skb, struct net_device *dev,
938 struct packet_type *ptype,
939 struct net_device *orig_dev)
940{
aea71a02
BPG		 941 struct bnx2fc_interface *interface;
942 interface = container_of(ptype, struct bnx2fc_interface,
943 fip_packet_type);
944 fcoe_ctlr_recv(&interface->ctlr, skb);
853e2bd2
BG		 945 return 0;
946}
947
948/**
949 * bnx2fc_update_src_mac - Update Ethernet MAC filters.
950 *
951 * @fip: FCoE controller.
952 * @old: Unicast MAC address to delete if the MAC is non-zero.
953 * @new: Unicast MAC address to add.
954 *
955 * Remove any previously-set unicast MAC filter.
956 * Add secondary FCoE MAC address filter for our OUI.
957 */
958static void bnx2fc_update_src_mac(struct fc_lport *lport, u8 *addr)
959{
960 struct fcoe_port *port = lport_priv(lport);
961
962 memcpy(port->data_src_addr, addr, ETH_ALEN);
963}
964
965/**
966 * bnx2fc_get_src_mac - return the ethernet source address for an lport
967 *
968 * @lport: libfc port
969 */
970static u8 *bnx2fc_get_src_mac(struct fc_lport *lport)
971{
972 struct fcoe_port *port;
973
974 port = (struct fcoe_port *)lport_priv(lport);
975 return port->data_src_addr;
976}
977
978/**
979 * bnx2fc_fip_send - send an Ethernet-encapsulated FIP frame.
980 *
981 * @fip: FCoE controller.
982 * @skb: FIP Packet.
983 */
984static void bnx2fc_fip_send(struct fcoe_ctlr *fip, struct sk_buff *skb)
985{
986 skb->dev = bnx2fc_from_ctlr(fip)->netdev;
987 dev_queue_xmit(skb);
988}
989
990static int bnx2fc_vport_create(struct fc_vport *vport, bool disabled)
991{
992 struct Scsi_Host *shost = vport_to_shost(vport);
993 struct fc_lport *n_port = shost_priv(shost);
994 struct fcoe_port *port = lport_priv(n_port);
aea71a02
BPG		 995 struct bnx2fc_interface *interface = port->priv;
996 struct net_device *netdev = interface->netdev;
853e2bd2
BG		 997 struct fc_lport *vn_port;
998
aea71a02 999 if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &interface->hba->flags)) {
853e2bd2 1000 printk(KERN_ERR PFX "vn ports cannot be created on"
aea71a02 1001 "this interface\n");
853e2bd2
BG		 1002 return -EIO;
1003 }
1004 mutex_lock(&bnx2fc_dev_lock);
aea71a02 1005 vn_port = bnx2fc_if_create(interface, &vport->dev, 1);
853e2bd2
BG		 1006 mutex_unlock(&bnx2fc_dev_lock);
1007
1008 if (IS_ERR(vn_port)) {
1009 printk(KERN_ERR PFX "bnx2fc_vport_create (%s) failed\n",
1010 netdev->name);
1011 return -EIO;
1012 }
1013
1014 if (disabled) {
1015 fc_vport_set_state(vport, FC_VPORT_DISABLED);
1016 } else {
1017 vn_port->boot_time = jiffies;
1018 fc_lport_init(vn_port);
1019 fc_fabric_login(vn_port);
1020 fc_vport_setlink(vn_port);
1021 }
1022 return 0;
1023}
1024
1025static int bnx2fc_vport_destroy(struct fc_vport *vport)
1026{
1027 struct Scsi_Host *shost = vport_to_shost(vport);
1028 struct fc_lport *n_port = shost_priv(shost);
1029 struct fc_lport *vn_port = vport->dd_data;
1030 struct fcoe_port *port = lport_priv(vn_port);
cdf54668
BPG		 1031 struct fc_lport *v_port;
1032 bool found = false;
853e2bd2
BG		 1033
1034 mutex_lock(&n_port->lp_mutex);
cdf54668
BPG		 1035 list_for_each_entry(v_port, &n_port->vports, list)
1036 if (v_port->vport == vport) {
1037 found = true;
1038 break;
1039 }
1040
1041 if (!found) {
1042 mutex_unlock(&n_port->lp_mutex);
1043 return -ENOENT;
1044 }
853e2bd2
BG		 1045 list_del(&vn_port->list);
1046 mutex_unlock(&n_port->lp_mutex);
1047 queue_work(bnx2fc_wq, &port->destroy_work);
1048 return 0;
1049}
1050
1051static int bnx2fc_vport_disable(struct fc_vport *vport, bool disable)
1052{
1053 struct fc_lport *lport = vport->dd_data;
1054
1055 if (disable) {
1056 fc_vport_set_state(vport, FC_VPORT_DISABLED);
1057 fc_fabric_logoff(lport);
1058 } else {
1059 lport->boot_time = jiffies;
1060 fc_fabric_login(lport);
1061 fc_vport_setlink(lport);
1062 }
1063 return 0;
1064}
1065
1066
776cebca 1067static int bnx2fc_interface_setup(struct bnx2fc_interface *interface)
853e2bd2 1068{
aea71a02
BPG		 1069 struct net_device *netdev = interface->netdev;
1070 struct net_device *physdev = interface->hba->phys_dev;
853e2bd2
BG		 1071 struct netdev_hw_addr *ha;
1072 int sel_san_mac = 0;
1073
853e2bd2
BG		 1074 /* setup Source MAC Address */
1075 rcu_read_lock();
1076 for_each_dev_addr(physdev, ha) {
1077 BNX2FC_MISC_DBG("net_config: ha->type = %d, fip_mac = ",
1078 ha->type);
1079 printk(KERN_INFO "%2x:%2x:%2x:%2x:%2x:%2x\n", ha->addr[0],
1080 ha->addr[1], ha->addr[2], ha->addr[3],
1081 ha->addr[4], ha->addr[5]);
1082
1083 if ((ha->type == NETDEV_HW_ADDR_T_SAN) &&
1084 (is_valid_ether_addr(ha->addr))) {
aea71a02
BPG		 1085 memcpy(interface->ctlr.ctl_src_addr, ha->addr,
1086 ETH_ALEN);
853e2bd2
BG		 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
aea71a02
BPG		 1096 interface->fip_packet_type.func = bnx2fc_fip_recv;
1097 interface->fip_packet_type.type = htons(ETH_P_FIP);
1098 interface->fip_packet_type.dev = netdev;
1099 dev_add_pack(&interface->fip_packet_type);
853e2bd2 1100
aea71a02
BPG		 1101 interface->fcoe_packet_type.func = bnx2fc_rcv;
1102 interface->fcoe_packet_type.type = __constant_htons(ETH_P_FCOE);
1103 interface->fcoe_packet_type.dev = netdev;
1104 dev_add_pack(&interface->fcoe_packet_type);
853e2bd2
BG		 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{
aea71a02 1140 struct bnx2fc_interface *interface;
853e2bd2 1141 struct net_device *netdev;
853e2bd2 1142
aea71a02 1143 interface = container_of(kref, struct bnx2fc_interface, kref);
068bdce4 1144 BNX2FC_MISC_DBG("Interface is being released\n");
853e2bd2 1145
aea71a02 1146 netdev = interface->netdev;
853e2bd2
BG		 1147
1148 /* tear-down FIP controller */
aea71a02
BPG		 1149 if (test_and_clear_bit(BNX2FC_CTLR_INIT_DONE, &interface->if_flags))
1150 fcoe_ctlr_destroy(&interface->ctlr);
1151
1152 kfree(interface);
853e2bd2 1153
853e2bd2
BG		 1154 dev_put(netdev);
1155 module_put(THIS_MODULE);
1156}
1157
aea71a02 1158static inline void bnx2fc_interface_get(struct bnx2fc_interface *interface)
853e2bd2 1159{
aea71a02 1160 kref_get(&interface->kref);
853e2bd2
BG		 1161}
1162
aea71a02 1163static inline void bnx2fc_interface_put(struct bnx2fc_interface *interface)
853e2bd2 1164{
aea71a02 1165 kref_put(&interface->kref, bnx2fc_interface_release);
853e2bd2 1166}
aea71a02 1167static void bnx2fc_hba_destroy(struct bnx2fc_hba *hba)
853e2bd2 1168{
aea71a02
BPG		 1169 /* Free the command manager */
1170 if (hba->cmd_mgr) {
1171 bnx2fc_cmd_mgr_free(hba->cmd_mgr);
1172 hba->cmd_mgr = NULL;
1173 }
1174 kfree(hba->tgt_ofld_list);
853e2bd2
BG		 1175 bnx2fc_unbind_pcidev(hba);
1176 kfree(hba);
1177}
1178
1179/**
aea71a02 1180 * bnx2fc_hba_create - create a new bnx2fc hba
853e2bd2
BG		 1181 *
1182 * @cnic: pointer to cnic device
1183 *
aea71a02
BPG		 1184 * Creates a new FCoE hba on the given device.
1185 *
853e2bd2 1186 */
aea71a02 1187static struct bnx2fc_hba *bnx2fc_hba_create(struct cnic_dev *cnic)
853e2bd2
BG		 1188{
1189 struct bnx2fc_hba *hba;
1190 int rc;
1191
1192 hba = kzalloc(sizeof(*hba), GFP_KERNEL);
1193 if (!hba) {
1194 printk(KERN_ERR PFX "Unable to allocate hba structure\n");
1195 return NULL;
1196 }
1197 spin_lock_init(&hba->hba_lock);
1198 mutex_init(&hba->hba_mutex);
1199
1200 hba->cnic = cnic;
1201 rc = bnx2fc_bind_pcidev(hba);
aea71a02
BPG		 1202 if (rc) {
1203 printk(KERN_ERR PFX "create_adapter: bind error\n");
853e2bd2 1204 goto bind_err;
aea71a02 1205 }
853e2bd2 1206 hba->phys_dev = cnic->netdev;
aea71a02
BPG		 1207 hba->next_conn_id = 0;
1208
1209 hba->tgt_ofld_list =
1210 kzalloc(sizeof(struct bnx2fc_rport *) * BNX2FC_NUM_MAX_SESS,
1211 GFP_KERNEL);
1212 if (!hba->tgt_ofld_list) {
1213 printk(KERN_ERR PFX "Unable to allocate tgt offload list\n");
1214 goto tgtofld_err;
1215 }
1216
1217 hba->num_ofld_sess = 0;
1218
1219 hba->cmd_mgr = bnx2fc_cmd_mgr_alloc(hba, BNX2FC_MIN_XID,
1220 BNX2FC_MAX_XID);
1221 if (!hba->cmd_mgr) {
1222 printk(KERN_ERR PFX "em_config:bnx2fc_cmd_mgr_alloc failed\n");
1223 goto cmgr_err;
1224 }
853e2bd2
BG		 1225
1226 init_waitqueue_head(&hba->shutdown_wait);
1227 init_waitqueue_head(&hba->destroy_wait);
aea71a02 1228 INIT_LIST_HEAD(&hba->vports);
853e2bd2
BG		 1229
1230 return hba;
aea71a02
BPG		 1231
1232cmgr_err:
1233 kfree(hba->tgt_ofld_list);
1234tgtofld_err:
1235 bnx2fc_unbind_pcidev(hba);
853e2bd2 1236bind_err:
853e2bd2
BG		 1237 kfree(hba);
1238 return NULL;
1239}
1240
aea71a02
BPG		 1241struct bnx2fc_interface *bnx2fc_interface_create(struct bnx2fc_hba *hba,
1242 struct net_device *netdev,
1243 enum fip_state fip_mode)
853e2bd2 1244{
aea71a02 1245 struct bnx2fc_interface *interface;
853e2bd2 1246 int rc = 0;
853e2bd2 1247
aea71a02
BPG		 1248 interface = kzalloc(sizeof(*interface), GFP_KERNEL);
1249 if (!interface) {
1250 printk(KERN_ERR PFX "Unable to allocate interface structure\n");
1251 return NULL;
1252 }
853e2bd2 1253 dev_hold(netdev);
aea71a02
BPG		 1254 kref_init(&interface->kref);
1255 interface->hba = hba;
1256 interface->netdev = netdev;
853e2bd2
BG		 1257
1258 /* Initialize FIP */
aea71a02
BPG		 1259 fcoe_ctlr_init(&interface->ctlr, fip_mode);
1260 interface->ctlr.send = bnx2fc_fip_send;
1261 interface->ctlr.update_mac = bnx2fc_update_src_mac;
1262 interface->ctlr.get_src_addr = bnx2fc_get_src_mac;
1263 set_bit(BNX2FC_CTLR_INIT_DONE, &interface->if_flags);
853e2bd2 1264
776cebca 1265 rc = bnx2fc_interface_setup(interface);
aea71a02
BPG		 1266 if (!rc)
1267 return interface;
853e2bd2 1268
aea71a02 1269 fcoe_ctlr_destroy(&interface->ctlr);
853e2bd2 1270 dev_put(netdev);
aea71a02
BPG		 1271 kfree(interface);
1272 return NULL;
853e2bd2
BG		 1273}
1274
1275/**
1276 * bnx2fc_if_create - Create FCoE instance on a given interface
1277 *
aea71a02 1278 * @interface: FCoE interface to create a local port on
853e2bd2
BG		 1279 * @parent: Device pointer to be the parent in sysfs for the SCSI host
1280 * @npiv: Indicates if the port is vport or not
1281 *
1282 * Creates a fc_lport instance and a Scsi_Host instance and configure them.
1283 *
1284 * Returns: Allocated fc_lport or an error pointer
1285 */
aea71a02 1286static struct fc_lport *bnx2fc_if_create(struct bnx2fc_interface *interface,
853e2bd2
BG		 1287 struct device *parent, int npiv)
1288{
134a4e27 1289 struct fc_lport *lport, *n_port;
853e2bd2
BG		 1290 struct fcoe_port *port;
1291 struct Scsi_Host *shost;
1292 struct fc_vport *vport = dev_to_vport(parent);
d36b3279 1293 struct bnx2fc_lport *blport;
aea71a02 1294 struct bnx2fc_hba *hba;
853e2bd2
BG		 1295 int rc = 0;
1296
d36b3279
BPG		 1297 blport = kzalloc(sizeof(struct bnx2fc_lport), GFP_KERNEL);
1298 if (!blport) {
aea71a02 1299 BNX2FC_HBA_DBG(interface->ctlr.lp, "Unable to alloc blport\n");
d36b3279
BPG		 1300 return NULL;
1301 }
1302
853e2bd2 1303 /* Allocate Scsi_Host structure */
134a4e27
VD		 1304 if (!npiv)
1305 lport = libfc_host_alloc(&bnx2fc_shost_template, sizeof(*port));
1306 else
1307 lport = libfc_vport_create(vport, sizeof(*port));
853e2bd2
BG		 1308
1309 if (!lport) {
1310 printk(KERN_ERR PFX "could not allocate scsi host structure\n");
d36b3279 1311 goto free_blport;
853e2bd2
BG		 1312 }
1313 shost = lport->host;
1314 port = lport_priv(lport);
1315 port->lport = lport;
aea71a02 1316 port->priv = interface;
853e2bd2
BG		 1317 INIT_WORK(&port->destroy_work, bnx2fc_destroy_work);
1318
1319 /* Configure fcoe_port */
1320 rc = bnx2fc_lport_config(lport);
1321 if (rc)
1322 goto lp_config_err;
1323
1324 if (npiv) {
853e2bd2
BG		 1325 printk(KERN_ERR PFX "Setting vport names, 0x%llX 0x%llX\n",
1326 vport->node_name, vport->port_name);
1327 fc_set_wwnn(lport, vport->node_name);
1328 fc_set_wwpn(lport, vport->port_name);
1329 }
1330 /* Configure netdev and networking properties of the lport */
1331 rc = bnx2fc_net_config(lport);
1332 if (rc) {
1333 printk(KERN_ERR PFX "Error on bnx2fc_net_config\n");
1334 goto lp_config_err;
1335 }
1336
1337 rc = bnx2fc_shost_config(lport, parent);
1338 if (rc) {
1339 printk(KERN_ERR PFX "Couldnt configure shost for %s\n",
aea71a02 1340 interface->netdev->name);
853e2bd2
BG		 1341 goto lp_config_err;
1342 }
1343
1344 /* Initialize the libfc library */
1345 rc = bnx2fc_libfc_config(lport);
1346 if (rc) {
1347 printk(KERN_ERR PFX "Couldnt configure libfc\n");
1348 goto shost_err;
1349 }
1350 fc_host_port_type(lport->host) = FC_PORTTYPE_UNKNOWN;
1351
1352 /* Allocate exchange manager */
134a4e27 1353 if (!npiv)
853e2bd2 1354 rc = bnx2fc_em_config(lport);
134a4e27
VD		 1355 else {
1356 shost = vport_to_shost(vport);
1357 n_port = shost_priv(shost);
1358 rc = fc_exch_mgr_list_clone(n_port, lport);
1359 }
1360
1361 if (rc) {
1362 printk(KERN_ERR PFX "Error on bnx2fc_em_config\n");
1363 goto shost_err;
853e2bd2
BG		 1364 }
1365
aea71a02 1366 bnx2fc_interface_get(interface);
d36b3279 1367
aea71a02 1368 hba = interface->hba;
d36b3279
BPG		 1369 spin_lock_bh(&hba->hba_lock);
1370 blport->lport = lport;
1371 list_add_tail(&blport->list, &hba->vports);
1372 spin_unlock_bh(&hba->hba_lock);
1373
853e2bd2
BG		 1374 return lport;
1375
1376shost_err:
1377 scsi_remove_host(shost);
1378lp_config_err:
1379 scsi_host_put(lport->host);
d36b3279
BPG		 1380free_blport:
1381 kfree(blport);
853e2bd2
BG		 1382 return NULL;
1383}
1384
776cebca 1385static void bnx2fc_interface_cleanup(struct bnx2fc_interface *interface)
853e2bd2 1386{
9be17fc4 1387 struct fc_lport *lport = interface->ctlr.lp;
853e2bd2 1388 struct fcoe_port *port = lport_priv(lport);
d36b3279 1389 struct bnx2fc_lport *blport, *tmp;
9be17fc4 1390 struct bnx2fc_hba *hba = interface->hba;
853e2bd2 1391
853e2bd2
BG		 1392 /* Stop the transmit retry timer */
1393 del_timer_sync(&port->timer);
1394
1395 /* Free existing transmit skbs */
1396 fcoe_clean_pending_queue(lport);
1397
9be17fc4
BPG		 1398 /* Dont listen for Ethernet packets anymore */
1399 __dev_remove_pack(&interface->fcoe_packet_type);
1400 __dev_remove_pack(&interface->fip_packet_type);
1401 synchronize_net();
1402
1403 spin_lock_bh(&hba->hba_lock);
1404 list_for_each_entry_safe(blport, tmp, &hba->vports, list) {
1405 if (blport->lport == lport) {
1406 list_del(&blport->list);
1407 kfree(blport);
1408 }
1409 }
1410 spin_unlock_bh(&hba->hba_lock);
1411}
1412
1413static void bnx2fc_if_destroy(struct fc_lport *lport)
1414{
1415
853e2bd2
BG		 1416 /* Free queued packets for the receive thread */
1417 bnx2fc_clean_rx_queue(lport);
1418
1419 /* Detach from scsi-ml */
1420 fc_remove_host(lport->host);
1421 scsi_remove_host(lport->host);
1422
1423 /*
1424 * Note that only the physical lport will have the exchange manager.
1425 * for vports, this function is NOP
1426 */
1427 fc_exch_mgr_free(lport);
1428
1429 /* Free memory used by statistical counters */
1430 fc_lport_free_stats(lport);
1431
1432 /* Release Scsi_Host */
1433 scsi_host_put(lport->host);
1434}
1435
1436/**
1437 * bnx2fc_destroy - Destroy a bnx2fc FCoE interface
1438 *
1439 * @buffer: The name of the Ethernet interface to be destroyed
1440 * @kp: The associated kernel parameter
1441 *
1442 * Called from sysfs.
1443 *
1444 * Returns: 0 for success
1445 */
1446static int bnx2fc_destroy(struct net_device *netdev)
1447{
aea71a02 1448 struct bnx2fc_interface *interface = NULL;
aea71a02 1449 struct fc_lport *lport;
853e2bd2
BG		 1450 int rc = 0;
1451
6702ca1d 1452 rtnl_lock();
853e2bd2 1453 mutex_lock(&bnx2fc_dev_lock);
853e2bd2 1454
aea71a02
BPG		 1455 interface = bnx2fc_interface_lookup(netdev);
1456 if (!interface || !interface->ctlr.lp) {
853e2bd2 1457 rc = -ENODEV;
aea71a02 1458 printk(KERN_ERR PFX "bnx2fc_destroy: interface or lport not found\n");
853e2bd2
BG		 1459 goto netdev_err;
1460 }
1461
853e2bd2 1462
776cebca 1463 bnx2fc_interface_cleanup(interface);
aea71a02
BPG		 1464 lport = interface->ctlr.lp;
1465 bnx2fc_stop(interface);
1466 list_del(&interface->list);
1467 destroy_workqueue(interface->timer_work_queue);
1468 bnx2fc_interface_put(interface);
9be17fc4 1469 bnx2fc_if_destroy(lport);
853e2bd2 1470
853e2bd2
BG		 1471netdev_err:
1472 mutex_unlock(&bnx2fc_dev_lock);
1473 rtnl_unlock();
1474 return rc;
1475}
1476
1477static void bnx2fc_destroy_work(struct work_struct *work)
1478{
1479 struct fcoe_port *port;
1480 struct fc_lport *lport;
aea71a02 1481 struct bnx2fc_interface *interface;
853e2bd2
BG		 1482
1483 port = container_of(work, struct fcoe_port, destroy_work);
1484 lport = port->lport;
aea71a02 1485 interface = port->priv;
853e2bd2
BG		 1486
1487 BNX2FC_HBA_DBG(lport, "Entered bnx2fc_destroy_work\n");
1488
1489 bnx2fc_port_shutdown(lport);
1490 rtnl_lock();
1491 mutex_lock(&bnx2fc_dev_lock);
9be17fc4 1492 bnx2fc_if_destroy(lport);
853e2bd2
BG		 1493 mutex_unlock(&bnx2fc_dev_lock);
1494 rtnl_unlock();
1495}
1496
1497static void bnx2fc_unbind_adapter_devices(struct bnx2fc_hba *hba)
1498{
1499 bnx2fc_free_fw_resc(hba);
1500 bnx2fc_free_task_ctx(hba);
1501}
1502
1503/**
1504 * bnx2fc_bind_adapter_devices - binds bnx2fc adapter with the associated
1505 * pci structure
1506 *
1507 * @hba: Adapter instance
1508 */
1509static int bnx2fc_bind_adapter_devices(struct bnx2fc_hba *hba)
1510{
1511 if (bnx2fc_setup_task_ctx(hba))
1512 goto mem_err;
1513
1514 if (bnx2fc_setup_fw_resc(hba))
1515 goto mem_err;
1516
1517 return 0;
1518mem_err:
1519 bnx2fc_unbind_adapter_devices(hba);
1520 return -ENOMEM;
1521}
1522
1523static int bnx2fc_bind_pcidev(struct bnx2fc_hba *hba)
1524{
1525 struct cnic_dev *cnic;
1526
1527 if (!hba->cnic) {
1528 printk(KERN_ERR PFX "cnic is NULL\n");
1529 return -ENODEV;
1530 }
1531 cnic = hba->cnic;
1532 hba->pcidev = cnic->pcidev;
1533 if (hba->pcidev)
1534 pci_dev_get(hba->pcidev);
1535
1536 return 0;
1537}
1538
1539static void bnx2fc_unbind_pcidev(struct bnx2fc_hba *hba)
1540{
1541 if (hba->pcidev)
1542 pci_dev_put(hba->pcidev);
1543 hba->pcidev = NULL;
1544}
1545
1546
1547
1548/**
1549 * bnx2fc_ulp_start - cnic callback to initialize & start adapter instance
1550 *
1551 * @handle: transport handle pointing to adapter struture
1552 *
1553 * This function maps adapter structure to pcidev structure and initiates
1554 * firmware handshake to enable/initialize on-chip FCoE components.
1555 * This bnx2fc - cnic interface api callback is used after following
1556 * conditions are met -
1557 * a) underlying network interface is up (marked by event NETDEV_UP
1558 * from netdev
1559 * b) bnx2fc adatper structure is registered.
1560 */
1561static void bnx2fc_ulp_start(void *handle)
1562{
1563 struct bnx2fc_hba *hba = handle;
aea71a02
BPG		 1564 struct bnx2fc_interface *interface;
1565 struct fc_lport *lport;
853e2bd2 1566
853e2bd2
BG		 1567 mutex_lock(&bnx2fc_dev_lock);
1568
aea71a02 1569 if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags))
853e2bd2
BG		 1570 bnx2fc_fw_init(hba);
1571
853e2bd2
BG		 1572 BNX2FC_MISC_DBG("bnx2fc started.\n");
1573
aea71a02
BPG		 1574 list_for_each_entry(interface, &if_list, list) {
1575 if (interface->hba == hba) {
1576 lport = interface->ctlr.lp;
1577 /* Kick off Fabric discovery*/
1578 printk(KERN_ERR PFX "ulp_init: start discovery\n");
1579 lport->tt.frame_send = bnx2fc_xmit;
1580 bnx2fc_start_disc(interface);
1581 }
853e2bd2 1582 }
aea71a02
BPG		 1583
1584 mutex_unlock(&bnx2fc_dev_lock);
853e2bd2
BG		 1585}
1586
1587static void bnx2fc_port_shutdown(struct fc_lport *lport)
1588{
1589 BNX2FC_MISC_DBG("Entered %s\n", __func__);
1590 fc_fabric_logoff(lport);
1591 fc_lport_destroy(lport);
1592}
1593
aea71a02 1594static void bnx2fc_stop(struct bnx2fc_interface *interface)
853e2bd2
BG		 1595{
1596 struct fc_lport *lport;
1597 struct fc_lport *vport;
1598
aea71a02
BPG		 1599 if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &interface->hba->flags))
1600 return;
853e2bd2 1601
aea71a02
BPG		 1602 lport = interface->ctlr.lp;
1603 bnx2fc_port_shutdown(lport);
1604
1605 mutex_lock(&lport->lp_mutex);
1606 list_for_each_entry(vport, &lport->vports, list)
1607 fc_host_port_type(vport->host) =
1608 FC_PORTTYPE_UNKNOWN;
1609 mutex_unlock(&lport->lp_mutex);
1610 fc_host_port_type(lport->host) = FC_PORTTYPE_UNKNOWN;
1611 fcoe_ctlr_link_down(&interface->ctlr);
1612 fcoe_clean_pending_queue(lport);
853e2bd2
BG		 1613}
1614
1615static int bnx2fc_fw_init(struct bnx2fc_hba *hba)
1616{
1617#define BNX2FC_INIT_POLL_TIME (1000 / HZ)
1618 int rc = -1;
1619 int i = HZ;
1620
1621 rc = bnx2fc_bind_adapter_devices(hba);
1622 if (rc) {
1623 printk(KERN_ALERT PFX
1624 "bnx2fc_bind_adapter_devices failed - rc = %d\n", rc);
1625 goto err_out;
1626 }
1627
1628 rc = bnx2fc_send_fw_fcoe_init_msg(hba);
1629 if (rc) {
1630 printk(KERN_ALERT PFX
1631 "bnx2fc_send_fw_fcoe_init_msg failed - rc = %d\n", rc);
1632 goto err_unbind;
1633 }
1634
1635 /*
1636 * Wait until the adapter init message is complete, and adapter
1637 * state is UP.
1638 */
1639 while (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state) && i--)
1640 msleep(BNX2FC_INIT_POLL_TIME);
1641
1642 if (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state)) {
1643 printk(KERN_ERR PFX "bnx2fc_start: %s failed to initialize. "
1644 "Ignoring...\n",
1645 hba->cnic->netdev->name);
1646 rc = -1;
1647 goto err_unbind;
1648 }
1649
1650
aea71a02 1651 set_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags);
853e2bd2
BG		 1652 return 0;
1653
1654err_unbind:
1655 bnx2fc_unbind_adapter_devices(hba);
1656err_out:
1657 return rc;
1658}
1659
1660static void bnx2fc_fw_destroy(struct bnx2fc_hba *hba)
1661{
aea71a02 1662 if (test_and_clear_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags)) {
853e2bd2
BG		 1663 if (bnx2fc_send_fw_fcoe_destroy_msg(hba) == 0) {
1664 init_timer(&hba->destroy_timer);
1665 hba->destroy_timer.expires = BNX2FC_FW_TIMEOUT +
1666 jiffies;
1667 hba->destroy_timer.function = bnx2fc_destroy_timer;
1668 hba->destroy_timer.data = (unsigned long)hba;
1669 add_timer(&hba->destroy_timer);
1670 wait_event_interruptible(hba->destroy_wait,
aea71a02
BPG		 1671 test_bit(BNX2FC_FLAG_DESTROY_CMPL,
1672 &hba->flags));
853e2bd2
BG		 1673 /* This should never happen */
1674 if (signal_pending(current))
1675 flush_signals(current);
1676
1677 del_timer_sync(&hba->destroy_timer);
1678 }
1679 bnx2fc_unbind_adapter_devices(hba);
1680 }
1681}
1682
1683/**
1684 * bnx2fc_ulp_stop - cnic callback to shutdown adapter instance
1685 *
1686 * @handle: transport handle pointing to adapter structure
1687 *
1688 * Driver checks if adapter is already in shutdown mode, if not start
1689 * the shutdown process.
1690 */
1691static void bnx2fc_ulp_stop(void *handle)
1692{
aea71a02
BPG		 1693 struct bnx2fc_hba *hba = handle;
1694 struct bnx2fc_interface *interface;
853e2bd2
BG		 1695
1696 printk(KERN_ERR "ULP_STOP\n");
1697
1698 mutex_lock(&bnx2fc_dev_lock);
aea71a02
BPG		 1699 if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags))
1700 goto exit;
1701 list_for_each_entry(interface, &if_list, list) {
1702 if (interface->hba == hba)
1703 bnx2fc_stop(interface);
1704 }
1705 BUG_ON(hba->num_ofld_sess != 0);
1706
1707 mutex_lock(&hba->hba_mutex);
1708 clear_bit(ADAPTER_STATE_UP, &hba->adapter_state);
1709 clear_bit(ADAPTER_STATE_GOING_DOWN,
1710 &hba->adapter_state);
1711
1712 clear_bit(ADAPTER_STATE_READY, &hba->adapter_state);
1713 mutex_unlock(&hba->hba_mutex);
1714
853e2bd2 1715 bnx2fc_fw_destroy(hba);
aea71a02 1716exit:
853e2bd2
BG		 1717 mutex_unlock(&bnx2fc_dev_lock);
1718}
1719
aea71a02 1720static void bnx2fc_start_disc(struct bnx2fc_interface *interface)
853e2bd2
BG		 1721{
1722 struct fc_lport *lport;
1723 int wait_cnt = 0;
1724
1725 BNX2FC_MISC_DBG("Entered %s\n", __func__);
1726 /* Kick off FIP/FLOGI */
aea71a02 1727 if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &interface->hba->flags)) {
853e2bd2
BG		 1728 printk(KERN_ERR PFX "Init not done yet\n");
1729 return;
1730 }
1731
aea71a02 1732 lport = interface->ctlr.lp;
853e2bd2
BG		 1733 BNX2FC_HBA_DBG(lport, "calling fc_fabric_login\n");
1734
1735 if (!bnx2fc_link_ok(lport)) {
1736 BNX2FC_HBA_DBG(lport, "ctlr_link_up\n");
aea71a02 1737 fcoe_ctlr_link_up(&interface->ctlr);
853e2bd2 1738 fc_host_port_type(lport->host) = FC_PORTTYPE_NPORT;
aea71a02 1739 set_bit(ADAPTER_STATE_READY, &interface->hba->adapter_state);
853e2bd2
BG		 1740 }
1741
1742 /* wait for the FCF to be selected before issuing FLOGI */
aea71a02 1743 while (!interface->ctlr.sel_fcf) {
853e2bd2
BG		 1744 msleep(250);
1745 /* give up after 3 secs */
1746 if (++wait_cnt > 12)
1747 break;
1748 }
627e628f
BPG		 1749
1750 /* Reset max receive frame size to default */
1751 if (fc_set_mfs(lport, BNX2FC_MFS))
1752 return;
1753
853e2bd2
BG		 1754 fc_lport_init(lport);
1755 fc_fabric_login(lport);
1756}
1757
1758
1759/**
1760 * bnx2fc_ulp_init - Initialize an adapter instance
1761 *
1762 * @dev : cnic device handle
1763 * Called from cnic_register_driver() context to initialize all
1764 * enumerated cnic devices. This routine allocates adapter structure
1765 * and other device specific resources.
1766 */
1767static void bnx2fc_ulp_init(struct cnic_dev *dev)
1768{
1769 struct bnx2fc_hba *hba;
1770 int rc = 0;
1771
1772 BNX2FC_MISC_DBG("Entered %s\n", __func__);
1773 /* bnx2fc works only when bnx2x is loaded */
aea71a02
BPG		 1774 if (!test_bit(CNIC_F_BNX2X_CLASS, &dev->flags) ||
1775 (dev->max_fcoe_conn == 0)) {
853e2bd2 1776 printk(KERN_ERR PFX "bnx2fc FCoE not supported on %s,"
aea71a02
BPG		 1777 " flags: %lx fcoe_conn: %d\n",
1778 dev->netdev->name, dev->flags, dev->max_fcoe_conn);
853e2bd2
BG		 1779 return;
1780 }
1781
aea71a02 1782 hba = bnx2fc_hba_create(dev);
853e2bd2
BG		 1783 if (!hba) {
1784 printk(KERN_ERR PFX "hba initialization failed\n");
1785 return;
1786 }
1787
1788 /* Add HBA to the adapter list */
1789 mutex_lock(&bnx2fc_dev_lock);
aea71a02 1790 list_add_tail(&hba->list, &adapter_list);
853e2bd2
BG		 1791 adapter_count++;
1792 mutex_unlock(&bnx2fc_dev_lock);
1793
1794 clear_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic);
1795 rc = dev->register_device(dev, CNIC_ULP_FCOE,
1796 (void *) hba);
1797 if (rc)
b2a554ff 1798 printk(KERN_ERR PFX "register_device failed, rc = %d\n", rc);
853e2bd2
BG		 1799 else
1800 set_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic);
1801}
1802
1803
1804static int bnx2fc_disable(struct net_device *netdev)
1805{
aea71a02 1806 struct bnx2fc_interface *interface;
853e2bd2
BG		 1807 int rc = 0;
1808
6702ca1d 1809 rtnl_lock();
853e2bd2
BG		 1810 mutex_lock(&bnx2fc_dev_lock);
1811
aea71a02
BPG		 1812 interface = bnx2fc_interface_lookup(netdev);
1813 if (!interface || !interface->ctlr.lp) {
853e2bd2 1814 rc = -ENODEV;
aea71a02 1815 printk(KERN_ERR PFX "bnx2fc_disable: interface or lport not found\n");
853e2bd2 1816 } else {
aea71a02
BPG		 1817 fcoe_ctlr_link_down(&interface->ctlr);
1818 fcoe_clean_pending_queue(interface->ctlr.lp);
853e2bd2
BG		 1819 }
1820
853e2bd2
BG		 1821 mutex_unlock(&bnx2fc_dev_lock);
1822 rtnl_unlock();
1823 return rc;
1824}
1825
1826
1827static int bnx2fc_enable(struct net_device *netdev)
1828{
aea71a02 1829 struct bnx2fc_interface *interface;
853e2bd2
BG		 1830 int rc = 0;
1831
6702ca1d 1832 rtnl_lock();
853e2bd2
BG		 1833 mutex_lock(&bnx2fc_dev_lock);
1834
aea71a02
BPG		 1835 interface = bnx2fc_interface_lookup(netdev);
1836 if (!interface || !interface->ctlr.lp) {
853e2bd2 1837 rc = -ENODEV;
aea71a02
BPG		 1838 printk(KERN_ERR PFX "bnx2fc_enable: interface or lport not found\n");
1839 } else if (!bnx2fc_link_ok(interface->ctlr.lp))
1840 fcoe_ctlr_link_up(&interface->ctlr);
853e2bd2 1841
853e2bd2
BG		 1842 mutex_unlock(&bnx2fc_dev_lock);
1843 rtnl_unlock();
1844 return rc;
1845}
1846
1847/**
1848 * bnx2fc_create - Create bnx2fc FCoE interface
1849 *
1850 * @buffer: The name of Ethernet interface to create on
1851 * @kp: The associated kernel param
1852 *
1853 * Called from sysfs.
1854 *
1855 * Returns: 0 for success
1856 */
1857static int bnx2fc_create(struct net_device *netdev, enum fip_state fip_mode)
1858{
aea71a02 1859 struct bnx2fc_interface *interface;
853e2bd2
BG		 1860 struct bnx2fc_hba *hba;
1861 struct net_device *phys_dev;
1862 struct fc_lport *lport;
1863 struct ethtool_drvinfo drvinfo;
1864 int rc = 0;
1865 int vlan_id;
1866
1867 BNX2FC_MISC_DBG("Entered bnx2fc_create\n");
1868 if (fip_mode != FIP_MODE_FABRIC) {
1869 printk(KERN_ERR "fip mode not FABRIC\n");
1870 return -EIO;
1871 }
1872
6702ca1d
NS		 1873 rtnl_lock();
1874
853e2bd2
BG		 1875 mutex_lock(&bnx2fc_dev_lock);
1876
853e2bd2
BG		 1877 if (!try_module_get(THIS_MODULE)) {
1878 rc = -EINVAL;
1879 goto mod_err;
1880 }
1881
1882 /* obtain physical netdev */
1883 if (netdev->priv_flags & IFF_802_1Q_VLAN) {
1884 phys_dev = vlan_dev_real_dev(netdev);
1885 vlan_id = vlan_dev_vlan_id(netdev);
1886 } else {
1887 printk(KERN_ERR PFX "Not a vlan device\n");
1888 rc = -EINVAL;
1889 goto netdev_err;
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);
aea71a02 1895 if (strncmp(drvinfo.driver, "bnx2x", strlen("bnx2x"))) {
853e2bd2
BG		 1896 printk(KERN_ERR PFX "Not a netxtreme2 device\n");
1897 rc = -EINVAL;
1898 goto netdev_err;
1899 }
1900 } else {
1901 printk(KERN_ERR PFX "unable to obtain drv_info\n");
1902 rc = -EINVAL;
1903 goto netdev_err;
1904 }
1905
aea71a02 1906 /* obtain interface and initialize rest of the structure */
853e2bd2
BG		 1907 hba = bnx2fc_hba_lookup(phys_dev);
1908 if (!hba) {
1909 rc = -ENODEV;
1910 printk(KERN_ERR PFX "bnx2fc_create: hba not found\n");
1911 goto netdev_err;
1912 }
1913
aea71a02 1914 if (bnx2fc_interface_lookup(netdev)) {
853e2bd2
BG		 1915 rc = -EEXIST;
1916 goto netdev_err;
1917 }
1918
aea71a02
BPG		 1919 interface = bnx2fc_interface_create(hba, netdev, fip_mode);
1920 if (!interface) {
1921 printk(KERN_ERR PFX "bnx2fc_interface_create failed\n");
853e2bd2
BG		 1922 goto ifput_err;
1923 }
1924
aea71a02
BPG		 1925 interface->vlan_id = vlan_id;
1926 interface->vlan_enabled = 1;
1927
1928 interface->timer_work_queue =
853e2bd2 1929 create_singlethread_workqueue("bnx2fc_timer_wq");
aea71a02 1930 if (!interface->timer_work_queue) {
853e2bd2
BG		 1931 printk(KERN_ERR PFX "ulp_init could not create timer_wq\n");
1932 rc = -EINVAL;
1933 goto ifput_err;
1934 }
1935
aea71a02 1936 lport = bnx2fc_if_create(interface, &interface->hba->pcidev->dev, 0);
853e2bd2
BG		 1937 if (!lport) {
1938 printk(KERN_ERR PFX "Failed to create interface (%s)\n",
1939 netdev->name);
776cebca 1940 bnx2fc_interface_cleanup(interface);
853e2bd2
BG		 1941 rc = -EINVAL;
1942 goto if_create_err;
1943 }
1944
aea71a02
BPG		 1945 /* Add interface to if_list */
1946 list_add_tail(&interface->list, &if_list);
1947
853e2bd2
BG		 1948 lport->boot_time = jiffies;
1949
1950 /* Make this master N_port */
aea71a02 1951 interface->ctlr.lp = lport;
853e2bd2 1952
aea71a02
BPG		 1953 BNX2FC_HBA_DBG(lport, "create: START DISC\n");
1954 bnx2fc_start_disc(interface);
853e2bd2
BG		 1955 /*
1956 * Release from kref_init in bnx2fc_interface_setup, on success
1957 * lport should be holding a reference taken in bnx2fc_if_create
1958 */
aea71a02 1959 bnx2fc_interface_put(interface);
853e2bd2
BG		 1960 /* put netdev that was held while calling dev_get_by_name */
1961 mutex_unlock(&bnx2fc_dev_lock);
1962 rtnl_unlock();
1963 return 0;
1964
1965if_create_err:
aea71a02 1966 destroy_workqueue(interface->timer_work_queue);
853e2bd2 1967ifput_err:
aea71a02 1968 bnx2fc_interface_put(interface);
853e2bd2
BG		 1969netdev_err:
1970 module_put(THIS_MODULE);
1971mod_err:
1972 mutex_unlock(&bnx2fc_dev_lock);
1973 rtnl_unlock();
1974 return rc;
1975}
1976
1977/**
aea71a02 1978 * bnx2fc_find_hba_for_cnic - maps cnic instance to bnx2fc hba instance
853e2bd2
BG		 1979 *
1980 * @cnic: Pointer to cnic device instance
1981 *
1982 **/
1983static struct bnx2fc_hba *bnx2fc_find_hba_for_cnic(struct cnic_dev *cnic)
1984{
1985 struct list_head *list;
1986 struct list_head *temp;
1987 struct bnx2fc_hba *hba;
1988
1989 /* Called with bnx2fc_dev_lock held */
1990 list_for_each_safe(list, temp, &adapter_list) {
1991 hba = (struct bnx2fc_hba *)list;
1992 if (hba->cnic == cnic)
1993 return hba;
1994 }
1995 return NULL;
1996}
1997
aea71a02
BPG		 1998static struct bnx2fc_interface *bnx2fc_interface_lookup(struct net_device
1999 *netdev)
2000{
2001 struct bnx2fc_interface *interface;
2002
2003 /* Called with bnx2fc_dev_lock held */
2004 list_for_each_entry(interface, &if_list, list) {
2005 if (interface->netdev == netdev)
2006 return interface;
2007 }
2008 return NULL;
2009}
2010
2011static struct bnx2fc_hba *bnx2fc_hba_lookup(struct net_device
2012 *phys_dev)
853e2bd2 2013{
853e2bd2
BG		 2014 struct bnx2fc_hba *hba;
2015
2016 /* Called with bnx2fc_dev_lock held */
aea71a02 2017 list_for_each_entry(hba, &adapter_list, list) {
853e2bd2
BG		 2018 if (hba->phys_dev == phys_dev)
2019 return hba;
2020 }
aea71a02 2021 printk(KERN_ERR PFX "adapter_lookup: hba NULL\n");
853e2bd2
BG		 2022 return NULL;
2023}
2024
2025/**
2026 * bnx2fc_ulp_exit - shuts down adapter instance and frees all resources
2027 *
2028 * @dev cnic device handle
2029 */
2030static void bnx2fc_ulp_exit(struct cnic_dev *dev)
2031{
2032 struct bnx2fc_hba *hba;
aea71a02
BPG		 2033 struct bnx2fc_interface *interface, *tmp;
2034 struct fc_lport *lport;
853e2bd2
BG		 2035
2036 BNX2FC_MISC_DBG("Entered bnx2fc_ulp_exit\n");
2037
2038 if (!test_bit(CNIC_F_BNX2X_CLASS, &dev->flags)) {
2039 printk(KERN_ERR PFX "bnx2fc port check: %s, flags: %lx\n",
2040 dev->netdev->name, dev->flags);
2041 return;
2042 }
2043
2044 mutex_lock(&bnx2fc_dev_lock);
2045 hba = bnx2fc_find_hba_for_cnic(dev);
2046 if (!hba) {
2047 printk(KERN_ERR PFX "bnx2fc_ulp_exit: hba not found, dev 0%p\n",
2048 dev);
2049 mutex_unlock(&bnx2fc_dev_lock);
2050 return;
2051 }
2052
aea71a02 2053 list_del_init(&hba->list);
853e2bd2
BG		 2054 adapter_count--;
2055
aea71a02 2056 list_for_each_entry_safe(interface, tmp, &if_list, list) {
853e2bd2 2057 /* destroy not called yet, move to quiesced list */
aea71a02 2058 if (interface->hba == hba) {
776cebca 2059 bnx2fc_interface_cleanup(interface);
aea71a02
BPG		 2060 bnx2fc_stop(interface);
2061
2062 list_del(&interface->list);
2063 lport = interface->ctlr.lp;
2064 bnx2fc_interface_put(interface);
9be17fc4 2065 bnx2fc_if_destroy(lport);
aea71a02 2066 }
853e2bd2
BG		 2067 }
2068 mutex_unlock(&bnx2fc_dev_lock);
2069
2070 bnx2fc_ulp_stop(hba);
2071 /* unregister cnic device */
2072 if (test_and_clear_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic))
2073 hba->cnic->unregister_device(hba->cnic, CNIC_ULP_FCOE);
aea71a02 2074 bnx2fc_hba_destroy(hba);
853e2bd2
BG		 2075}
2076
2077/**
2078 * bnx2fc_fcoe_reset - Resets the fcoe
2079 *
2080 * @shost: shost the reset is from
2081 *
2082 * Returns: always 0
2083 */
2084static int bnx2fc_fcoe_reset(struct Scsi_Host *shost)
2085{
2086 struct fc_lport *lport = shost_priv(shost);
2087 fc_lport_reset(lport);
2088 return 0;
2089}
2090
2091
2092static bool bnx2fc_match(struct net_device *netdev)
2093{
2094 mutex_lock(&bnx2fc_dev_lock);
2095 if (netdev->priv_flags & IFF_802_1Q_VLAN) {
2096 struct net_device *phys_dev = vlan_dev_real_dev(netdev);
2097
2098 if (bnx2fc_hba_lookup(phys_dev)) {
2099 mutex_unlock(&bnx2fc_dev_lock);
2100 return true;
2101 }
2102 }
2103 mutex_unlock(&bnx2fc_dev_lock);
2104 return false;
2105}
2106
2107
2108static struct fcoe_transport bnx2fc_transport = {
2109 .name = {"bnx2fc"},
2110 .attached = false,
2111 .list = LIST_HEAD_INIT(bnx2fc_transport.list),
2112 .match = bnx2fc_match,
2113 .create = bnx2fc_create,
2114 .destroy = bnx2fc_destroy,
2115 .enable = bnx2fc_enable,
2116 .disable = bnx2fc_disable,
2117};
2118
2119/**
2120 * bnx2fc_percpu_thread_create - Create a receive thread for an
2121 * online CPU
2122 *
2123 * @cpu: cpu index for the online cpu
2124 */
2125static void bnx2fc_percpu_thread_create(unsigned int cpu)
2126{
2127 struct bnx2fc_percpu_s *p;
2128 struct task_struct *thread;
2129
2130 p = &per_cpu(bnx2fc_percpu, cpu);
2131
2132 thread = kthread_create(bnx2fc_percpu_io_thread,
2133 (void *)p,
2134 "bnx2fc_thread/%d", cpu);
2135 /* bind thread to the cpu */
32248763 2136 if (likely(!IS_ERR(thread))) {
853e2bd2
BG		 2137 kthread_bind(thread, cpu);
2138 p->iothread = thread;
2139 wake_up_process(thread);
2140 }
2141}
2142
2143static void bnx2fc_percpu_thread_destroy(unsigned int cpu)
2144{
2145 struct bnx2fc_percpu_s *p;
2146 struct task_struct *thread;
2147 struct bnx2fc_work *work, *tmp;
853e2bd2
BG		 2148
2149 BNX2FC_MISC_DBG("destroying io thread for CPU %d\n", cpu);
2150
2151 /* Prevent any new work from being queued for this CPU */
2152 p = &per_cpu(bnx2fc_percpu, cpu);
2153 spin_lock_bh(&p->fp_work_lock);
2154 thread = p->iothread;
2155 p->iothread = NULL;
2156
2157
2158 /* Free all work in the list */
32248763 2159 list_for_each_entry_safe(work, tmp, &p->work_list, list) {
853e2bd2
BG		 2160 list_del_init(&work->list);
2161 bnx2fc_process_cq_compl(work->tgt, work->wqe);
2162 kfree(work);
2163 }
2164
2165 spin_unlock_bh(&p->fp_work_lock);
2166
2167 if (thread)
2168 kthread_stop(thread);
2169}
2170
2171/**
2172 * bnx2fc_cpu_callback - Handler for CPU hotplug events
2173 *
2174 * @nfb: The callback data block
2175 * @action: The event triggering the callback
2176 * @hcpu: The index of the CPU that the event is for
2177 *
2178 * This creates or destroys per-CPU data for fcoe
2179 *
2180 * Returns NOTIFY_OK always.
2181 */
2182static int bnx2fc_cpu_callback(struct notifier_block *nfb,
2183 unsigned long action, void *hcpu)
2184{
2185 unsigned cpu = (unsigned long)hcpu;
2186
2187 switch (action) {
2188 case CPU_ONLINE:
2189 case CPU_ONLINE_FROZEN:
2190 printk(PFX "CPU %x online: Create Rx thread\n", cpu);
2191 bnx2fc_percpu_thread_create(cpu);
2192 break;
2193 case CPU_DEAD:
2194 case CPU_DEAD_FROZEN:
2195 printk(PFX "CPU %x offline: Remove Rx thread\n", cpu);
2196 bnx2fc_percpu_thread_destroy(cpu);
2197 break;
2198 default:
2199 break;
2200 }
2201 return NOTIFY_OK;
2202}
2203
2204/**
2205 * bnx2fc_mod_init - module init entry point
2206 *
2207 * Initialize driver wide global data structures, and register
2208 * with cnic module
2209 **/
2210static int __init bnx2fc_mod_init(void)
2211{
2212 struct fcoe_percpu_s *bg;
2213 struct task_struct *l2_thread;
2214 int rc = 0;
2215 unsigned int cpu = 0;
2216 struct bnx2fc_percpu_s *p;
2217
2218 printk(KERN_INFO PFX "%s", version);
2219
2220 /* register as a fcoe transport */
2221 rc = fcoe_transport_attach(&bnx2fc_transport);
2222 if (rc) {
2223 printk(KERN_ERR "failed to register an fcoe transport, check "
2224 "if libfcoe is loaded\n");
2225 goto out;
2226 }
2227
2228 INIT_LIST_HEAD(&adapter_list);
aea71a02 2229 INIT_LIST_HEAD(&if_list);
853e2bd2
BG		 2230 mutex_init(&bnx2fc_dev_lock);
2231 adapter_count = 0;
2232
2233 /* Attach FC transport template */
2234 rc = bnx2fc_attach_transport();
2235 if (rc)
2236 goto detach_ft;
2237
2238 bnx2fc_wq = alloc_workqueue("bnx2fc", 0, 0);
2239 if (!bnx2fc_wq) {
2240 rc = -ENOMEM;
2241 goto release_bt;
2242 }
2243
2244 bg = &bnx2fc_global;
2245 skb_queue_head_init(&bg->fcoe_rx_list);
2246 l2_thread = kthread_create(bnx2fc_l2_rcv_thread,
2247 (void *)bg,
2248 "bnx2fc_l2_thread");
2249 if (IS_ERR(l2_thread)) {
2250 rc = PTR_ERR(l2_thread);
2251 goto free_wq;
2252 }
2253 wake_up_process(l2_thread);
2254 spin_lock_bh(&bg->fcoe_rx_list.lock);
2255 bg->thread = l2_thread;
2256 spin_unlock_bh(&bg->fcoe_rx_list.lock);
2257
2258 for_each_possible_cpu(cpu) {
2259 p = &per_cpu(bnx2fc_percpu, cpu);
2260 INIT_LIST_HEAD(&p->work_list);
2261 spin_lock_init(&p->fp_work_lock);
2262 }
2263
2264 for_each_online_cpu(cpu) {
2265 bnx2fc_percpu_thread_create(cpu);
2266 }
2267
2268 /* Initialize per CPU interrupt thread */
2269 register_hotcpu_notifier(&bnx2fc_cpu_notifier);
2270
2271 cnic_register_driver(CNIC_ULP_FCOE, &bnx2fc_cnic_cb);
2272
2273 return 0;
2274
2275free_wq:
2276 destroy_workqueue(bnx2fc_wq);
2277release_bt:
2278 bnx2fc_release_transport();
2279detach_ft:
2280 fcoe_transport_detach(&bnx2fc_transport);
2281out:
2282 return rc;
2283}
2284
2285static void __exit bnx2fc_mod_exit(void)
2286{
2287 LIST_HEAD(to_be_deleted);
2288 struct bnx2fc_hba *hba, *next;
2289 struct fcoe_percpu_s *bg;
2290 struct task_struct *l2_thread;
2291 struct sk_buff *skb;
2292 unsigned int cpu = 0;
2293
2294 /*
2295 * NOTE: Since cnic calls register_driver routine rtnl_lock,
2296 * it will have higher precedence than bnx2fc_dev_lock.
2297 * unregister_device() cannot be called with bnx2fc_dev_lock
2298 * held.
2299 */
2300 mutex_lock(&bnx2fc_dev_lock);
2301 list_splice(&adapter_list, &to_be_deleted);
2302 INIT_LIST_HEAD(&adapter_list);
2303 adapter_count = 0;
2304 mutex_unlock(&bnx2fc_dev_lock);
2305
2306 /* Unregister with cnic */
aea71a02
BPG		 2307 list_for_each_entry_safe(hba, next, &to_be_deleted, list) {
2308 list_del_init(&hba->list);
2309 printk(KERN_ERR PFX "MOD_EXIT:destroy hba = 0x%p\n",
2310 hba);
853e2bd2
BG		 2311 bnx2fc_ulp_stop(hba);
2312 /* unregister cnic device */
2313 if (test_and_clear_bit(BNX2FC_CNIC_REGISTERED,
2314 &hba->reg_with_cnic))
aea71a02
BPG		 2315 hba->cnic->unregister_device(hba->cnic,
2316 CNIC_ULP_FCOE);
2317 bnx2fc_hba_destroy(hba);
853e2bd2
BG		 2318 }
2319 cnic_unregister_driver(CNIC_ULP_FCOE);
2320
2321 /* Destroy global thread */
2322 bg = &bnx2fc_global;
2323 spin_lock_bh(&bg->fcoe_rx_list.lock);
2324 l2_thread = bg->thread;
2325 bg->thread = NULL;
2326 while ((skb = __skb_dequeue(&bg->fcoe_rx_list)) != NULL)
2327 kfree_skb(skb);
2328
2329 spin_unlock_bh(&bg->fcoe_rx_list.lock);
2330
2331 if (l2_thread)
2332 kthread_stop(l2_thread);
2333
2334 unregister_hotcpu_notifier(&bnx2fc_cpu_notifier);
2335
2336 /* Destroy per cpu threads */
2337 for_each_online_cpu(cpu) {
2338 bnx2fc_percpu_thread_destroy(cpu);
2339 }
2340
2341 destroy_workqueue(bnx2fc_wq);
2342 /*
2343 * detach from scsi transport
2344 * must happen after all destroys are done
2345 */
2346 bnx2fc_release_transport();
2347
2348 /* detach from fcoe transport */
2349 fcoe_transport_detach(&bnx2fc_transport);
2350}
2351
2352module_init(bnx2fc_mod_init);
2353module_exit(bnx2fc_mod_exit);
2354
2355static struct fc_function_template bnx2fc_transport_function = {
2356 .show_host_node_name = 1,
2357 .show_host_port_name = 1,
2358 .show_host_supported_classes = 1,
2359 .show_host_supported_fc4s = 1,
2360 .show_host_active_fc4s = 1,
2361 .show_host_maxframe_size = 1,
2362
2363 .show_host_port_id = 1,
2364 .show_host_supported_speeds = 1,
2365 .get_host_speed = fc_get_host_speed,
2366 .show_host_speed = 1,
2367 .show_host_port_type = 1,
2368 .get_host_port_state = fc_get_host_port_state,
2369 .show_host_port_state = 1,
2370 .show_host_symbolic_name = 1,
2371
2372 .dd_fcrport_size = (sizeof(struct fc_rport_libfc_priv) +
2373 sizeof(struct bnx2fc_rport)),
2374 .show_rport_maxframe_size = 1,
2375 .show_rport_supported_classes = 1,
2376
2377 .show_host_fabric_name = 1,
2378 .show_starget_node_name = 1,
2379 .show_starget_port_name = 1,
2380 .show_starget_port_id = 1,
2381 .set_rport_dev_loss_tmo = fc_set_rport_loss_tmo,
2382 .show_rport_dev_loss_tmo = 1,
2383 .get_fc_host_stats = bnx2fc_get_host_stats,
2384
2385 .issue_fc_host_lip = bnx2fc_fcoe_reset,
2386
2387 .terminate_rport_io = fc_rport_terminate_io,
2388
2389 .vport_create = bnx2fc_vport_create,
2390 .vport_delete = bnx2fc_vport_destroy,
2391 .vport_disable = bnx2fc_vport_disable,
e9a5289c 2392 .bsg_request = fc_lport_bsg_request,
853e2bd2
BG		 2393};
2394
2395static struct fc_function_template bnx2fc_vport_xport_function = {
2396 .show_host_node_name = 1,
2397 .show_host_port_name = 1,
2398 .show_host_supported_classes = 1,
2399 .show_host_supported_fc4s = 1,
2400 .show_host_active_fc4s = 1,
2401 .show_host_maxframe_size = 1,
2402
2403 .show_host_port_id = 1,
2404 .show_host_supported_speeds = 1,
2405 .get_host_speed = fc_get_host_speed,
2406 .show_host_speed = 1,
2407 .show_host_port_type = 1,
2408 .get_host_port_state = fc_get_host_port_state,
2409 .show_host_port_state = 1,
2410 .show_host_symbolic_name = 1,
2411
2412 .dd_fcrport_size = (sizeof(struct fc_rport_libfc_priv) +
2413 sizeof(struct bnx2fc_rport)),
2414 .show_rport_maxframe_size = 1,
2415 .show_rport_supported_classes = 1,
2416
2417 .show_host_fabric_name = 1,
2418 .show_starget_node_name = 1,
2419 .show_starget_port_name = 1,
2420 .show_starget_port_id = 1,
2421 .set_rport_dev_loss_tmo = fc_set_rport_loss_tmo,
2422 .show_rport_dev_loss_tmo = 1,
2423 .get_fc_host_stats = fc_get_host_stats,
2424 .issue_fc_host_lip = bnx2fc_fcoe_reset,
2425 .terminate_rport_io = fc_rport_terminate_io,
e9a5289c 2426 .bsg_request = fc_lport_bsg_request,
853e2bd2
BG		 2427};
2428
2429/**
2430 * scsi_host_template structure used while registering with SCSI-ml
2431 */
2432static struct scsi_host_template bnx2fc_shost_template = {
2433 .module = THIS_MODULE,
2434 .name = "Broadcom Offload FCoE Initiator",
2435 .queuecommand = bnx2fc_queuecommand,
2436 .eh_abort_handler = bnx2fc_eh_abort, /* abts */
2437 .eh_device_reset_handler = bnx2fc_eh_device_reset, /* lun reset */
2438 .eh_target_reset_handler = bnx2fc_eh_target_reset, /* tgt reset */
2439 .eh_host_reset_handler = fc_eh_host_reset,
2440 .slave_alloc = fc_slave_alloc,
2441 .change_queue_depth = fc_change_queue_depth,
2442 .change_queue_type = fc_change_queue_type,
2443 .this_id = -1,
2444 .cmd_per_lun = 3,
0ea5c275 2445 .can_queue = BNX2FC_CAN_QUEUE,
853e2bd2
BG		 2446 .use_clustering = ENABLE_CLUSTERING,
2447 .sg_tablesize = BNX2FC_MAX_BDS_PER_CMD,
2448 .max_sectors = 512,
2449};
2450
2451static struct libfc_function_template bnx2fc_libfc_fcn_templ = {
2452 .frame_send = bnx2fc_xmit,
2453 .elsct_send = bnx2fc_elsct_send,
2454 .fcp_abort_io = bnx2fc_abort_io,
2455 .fcp_cleanup = bnx2fc_cleanup,
2456 .rport_event_callback = bnx2fc_rport_event_handler,
2457};
2458
2459/**
2460 * bnx2fc_cnic_cb - global template of bnx2fc - cnic driver interface
2461 * structure carrying callback function pointers
2462 */
2463static struct cnic_ulp_ops bnx2fc_cnic_cb = {
2464 .owner = THIS_MODULE,
2465 .cnic_init = bnx2fc_ulp_init,
2466 .cnic_exit = bnx2fc_ulp_exit,
2467 .cnic_start = bnx2fc_ulp_start,
2468 .cnic_stop = bnx2fc_ulp_stop,
2469 .indicate_kcqes = bnx2fc_indicate_kcqe,
2470 .indicate_netevent = bnx2fc_indicate_netevent,
2471};
Linux 6.x block layer and io_uring tree(s)