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fc_fip: Update to latest FC-BB-6 draft
[mirror_ubuntu-artful-kernel.git] / drivers / scsi / bnx2fc / bnx2fc_fcoe.c
CommitLineData
de909d87 1/* bnx2fc_fcoe.c: QLogic Linux FCoE offload driver.
853e2bd2
BG		 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 *
97586090
CD		 6 * Copyright (c) 2008-2013 Broadcom Corporation
7 * Copyright (c) 2014-2015 QLogic Corporation
853e2bd2
BG		 8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation.
12 *
13 * Written by: Bhanu Prakash Gollapudi (bprakash@broadcom.com)
14 */
15
16#include "bnx2fc.h"
17
18static struct list_head adapter_list;
aea71a02 19static struct list_head if_list;
853e2bd2
BG		 20static u32 adapter_count;
21static DEFINE_MUTEX(bnx2fc_dev_lock);
22DEFINE_PER_CPU(struct bnx2fc_percpu_s, bnx2fc_percpu);
23
24#define DRV_MODULE_NAME "bnx2fc"
25#define DRV_MODULE_VERSION BNX2FC_VERSION
edb394b5 26#define DRV_MODULE_RELDATE "October 15, 2015"
853e2bd2
BG		 27
28
6f039790 29static char version[] =
de909d87 30 "QLogic FCoE Driver " DRV_MODULE_NAME \
853e2bd2
BG		 31 " v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n";
32
33
34MODULE_AUTHOR("Bhanu Prakash Gollapudi <bprakash@broadcom.com>");
de909d87 35MODULE_DESCRIPTION("QLogic FCoE Driver");
853e2bd2
BG		 36MODULE_LICENSE("GPL");
37MODULE_VERSION(DRV_MODULE_VERSION);
38
39#define BNX2FC_MAX_QUEUE_DEPTH 256
40#define BNX2FC_MIN_QUEUE_DEPTH 32
41#define FCOE_WORD_TO_BYTE 4
42
43static struct scsi_transport_template *bnx2fc_transport_template;
44static struct scsi_transport_template *bnx2fc_vport_xport_template;
45
46struct workqueue_struct *bnx2fc_wq;
47
48/* bnx2fc structure needs only one instance of the fcoe_percpu_s structure.
49 * Here the io threads are per cpu but the l2 thread is just one
50 */
51struct fcoe_percpu_s bnx2fc_global;
52DEFINE_SPINLOCK(bnx2fc_global_lock);
53
54static struct cnic_ulp_ops bnx2fc_cnic_cb;
55static struct libfc_function_template bnx2fc_libfc_fcn_templ;
56static struct scsi_host_template bnx2fc_shost_template;
57static struct fc_function_template bnx2fc_transport_function;
8d55e507 58static struct fcoe_sysfs_function_template bnx2fc_fcoe_sysfs_templ;
853e2bd2
BG		 59static struct fc_function_template bnx2fc_vport_xport_function;
60static int bnx2fc_create(struct net_device *netdev, enum fip_state fip_mode);
eccdcd02 61static void __bnx2fc_destroy(struct bnx2fc_interface *interface);
853e2bd2
BG		 62static int bnx2fc_destroy(struct net_device *net_device);
63static int bnx2fc_enable(struct net_device *netdev);
64static int bnx2fc_disable(struct net_device *netdev);
65
6e89ea3f
RL		 66/* fcoe_syfs control interface handlers */
67static int bnx2fc_ctlr_alloc(struct net_device *netdev);
68static int bnx2fc_ctlr_enabled(struct fcoe_ctlr_device *cdev);
69
853e2bd2
BG		 70static void bnx2fc_recv_frame(struct sk_buff *skb);
71
aea71a02 72static void bnx2fc_start_disc(struct bnx2fc_interface *interface);
853e2bd2 73static int bnx2fc_shost_config(struct fc_lport *lport, struct device *dev);
853e2bd2 74static int bnx2fc_lport_config(struct fc_lport *lport);
0eb43b4b 75static int bnx2fc_em_config(struct fc_lport *lport, struct bnx2fc_hba *hba);
853e2bd2
BG		 76static int bnx2fc_bind_adapter_devices(struct bnx2fc_hba *hba);
77static void bnx2fc_unbind_adapter_devices(struct bnx2fc_hba *hba);
78static int bnx2fc_bind_pcidev(struct bnx2fc_hba *hba);
79static void bnx2fc_unbind_pcidev(struct bnx2fc_hba *hba);
aea71a02 80static struct fc_lport *bnx2fc_if_create(struct bnx2fc_interface *interface,
853e2bd2
BG		 81 struct device *parent, int npiv);
82static void bnx2fc_destroy_work(struct work_struct *work);
83
84static struct bnx2fc_hba *bnx2fc_hba_lookup(struct net_device *phys_dev);
aea71a02
BPG		 85static struct bnx2fc_interface *bnx2fc_interface_lookup(struct net_device
86 *phys_dev);
abc49a93 87static inline void bnx2fc_interface_put(struct bnx2fc_interface *interface);
853e2bd2
BG		 88static struct bnx2fc_hba *bnx2fc_find_hba_for_cnic(struct cnic_dev *cnic);
89
90static int bnx2fc_fw_init(struct bnx2fc_hba *hba);
91static void bnx2fc_fw_destroy(struct bnx2fc_hba *hba);
92
93static void bnx2fc_port_shutdown(struct fc_lport *lport);
aea71a02 94static void bnx2fc_stop(struct bnx2fc_interface *interface);
853e2bd2
BG		 95static int __init bnx2fc_mod_init(void);
96static void __exit bnx2fc_mod_exit(void);
97
98unsigned int bnx2fc_debug_level;
99module_param_named(debug_logging, bnx2fc_debug_level, int, S_IRUGO|S_IWUSR);
d4faee08
JC		 100MODULE_PARM_DESC(debug_logging,
101 "Option to enable extended logging,\n"
102 "\t\tDefault is 0 - no logging.\n"
103 "\t\t0x01 - SCSI cmd error, cleanup.\n"
104 "\t\t0x02 - Session setup, cleanup, etc.\n"
105 "\t\t0x04 - lport events, link, mtu, etc.\n"
106 "\t\t0x08 - ELS logs.\n"
107 "\t\t0x10 - fcoe L2 fame related logs.\n"
108 "\t\t0xff - LOG all messages.");
853e2bd2 109
10755d3f
JC		 110uint bnx2fc_devloss_tmo;
111module_param_named(devloss_tmo, bnx2fc_devloss_tmo, uint, S_IRUGO);
112MODULE_PARM_DESC(devloss_tmo, " Change devloss_tmo for the remote ports "
113 "attached via bnx2fc.");
114
115uint bnx2fc_max_luns = BNX2FC_MAX_LUN;
116module_param_named(max_luns, bnx2fc_max_luns, uint, S_IRUGO);
117MODULE_PARM_DESC(max_luns, " Change the default max_lun per SCSI host. Default "
118 "0xffff.");
119
120uint bnx2fc_queue_depth;
121module_param_named(queue_depth, bnx2fc_queue_depth, uint, S_IRUGO);
122MODULE_PARM_DESC(queue_depth, " Change the default queue depth of SCSI devices "
123 "attached via bnx2fc.");
124
3f12f76e
CD		 125uint bnx2fc_log_fka;
126module_param_named(log_fka, bnx2fc_log_fka, uint, S_IRUGO|S_IWUSR);
127MODULE_PARM_DESC(log_fka, " Print message to kernel log when fcoe is "
128 "initiating a FIP keep alive when debug logging is enabled.");
129
853e2bd2
BG		 130static int bnx2fc_cpu_callback(struct notifier_block *nfb,
131 unsigned long action, void *hcpu);
132/* notification function for CPU hotplug events */
133static struct notifier_block bnx2fc_cpu_notifier = {
134 .notifier_call = bnx2fc_cpu_callback,
135};
136
f72f6979
BPG		 137static inline struct net_device *bnx2fc_netdev(const struct fc_lport *lport)
138{
139 return ((struct bnx2fc_interface *)
140 ((struct fcoe_port *)lport_priv(lport))->priv)->netdev;
141}
142
8d55e507
RL		 143static void bnx2fc_fcf_get_vlan_id(struct fcoe_fcf_device *fcf_dev)
144{
145 struct fcoe_ctlr_device *ctlr_dev =
146 fcoe_fcf_dev_to_ctlr_dev(fcf_dev);
147 struct fcoe_ctlr *ctlr = fcoe_ctlr_device_priv(ctlr_dev);
148 struct bnx2fc_interface *fcoe = fcoe_ctlr_priv(ctlr);
149
150 fcf_dev->vlan_id = fcoe->vlan_id;
151}
152
853e2bd2
BG		 153static void bnx2fc_clean_rx_queue(struct fc_lport *lp)
154{
155 struct fcoe_percpu_s *bg;
156 struct fcoe_rcv_info *fr;
157 struct sk_buff_head *list;
158 struct sk_buff *skb, *next;
159 struct sk_buff *head;
160
161 bg = &bnx2fc_global;
162 spin_lock_bh(&bg->fcoe_rx_list.lock);
163 list = &bg->fcoe_rx_list;
164 head = list->next;
165 for (skb = head; skb != (struct sk_buff *)list;
166 skb = next) {
167 next = skb->next;
168 fr = fcoe_dev_from_skb(skb);
169 if (fr->fr_dev == lp) {
170 __skb_unlink(skb, list);
171 kfree_skb(skb);
172 }
173 }
174 spin_unlock_bh(&bg->fcoe_rx_list.lock);
175}
176
177int bnx2fc_get_paged_crc_eof(struct sk_buff *skb, int tlen)
178{
179 int rc;
180 spin_lock(&bnx2fc_global_lock);
181 rc = fcoe_get_paged_crc_eof(skb, tlen, &bnx2fc_global);
182 spin_unlock(&bnx2fc_global_lock);
183
184 return rc;
185}
186
187static void bnx2fc_abort_io(struct fc_lport *lport)
188{
189 /*
190 * This function is no-op for bnx2fc, but we do
191 * not want to leave it as NULL either, as libfc
192 * can call the default function which is
193 * fc_fcp_abort_io.
194 */
195}
196
197static void bnx2fc_cleanup(struct fc_lport *lport)
198{
199 struct fcoe_port *port = lport_priv(lport);
aea71a02
BPG		 200 struct bnx2fc_interface *interface = port->priv;
201 struct bnx2fc_hba *hba = interface->hba;
853e2bd2
BG		 202 struct bnx2fc_rport *tgt;
203 int i;
204
205 BNX2FC_MISC_DBG("Entered %s\n", __func__);
206 mutex_lock(&hba->hba_mutex);
207 spin_lock_bh(&hba->hba_lock);
208 for (i = 0; i < BNX2FC_NUM_MAX_SESS; i++) {
209 tgt = hba->tgt_ofld_list[i];
210 if (tgt) {
211 /* Cleanup IOs belonging to requested vport */
212 if (tgt->port == port) {
213 spin_unlock_bh(&hba->hba_lock);
214 BNX2FC_TGT_DBG(tgt, "flush/cleanup\n");
215 bnx2fc_flush_active_ios(tgt);
216 spin_lock_bh(&hba->hba_lock);
217 }
218 }
219 }
220 spin_unlock_bh(&hba->hba_lock);
221 mutex_unlock(&hba->hba_mutex);
222}
223
224static int bnx2fc_xmit_l2_frame(struct bnx2fc_rport *tgt,
225 struct fc_frame *fp)
226{
227 struct fc_rport_priv *rdata = tgt->rdata;
228 struct fc_frame_header *fh;
229 int rc = 0;
230
231 fh = fc_frame_header_get(fp);
232 BNX2FC_TGT_DBG(tgt, "Xmit L2 frame rport = 0x%x, oxid = 0x%x, "
233 "r_ctl = 0x%x\n", rdata->ids.port_id,
234 ntohs(fh->fh_ox_id), fh->fh_r_ctl);
235 if ((fh->fh_type == FC_TYPE_ELS) &&
236 (fh->fh_r_ctl == FC_RCTL_ELS_REQ)) {
237
238 switch (fc_frame_payload_op(fp)) {
239 case ELS_ADISC:
240 rc = bnx2fc_send_adisc(tgt, fp);
241 break;
242 case ELS_LOGO:
243 rc = bnx2fc_send_logo(tgt, fp);
244 break;
245 case ELS_RLS:
246 rc = bnx2fc_send_rls(tgt, fp);
247 break;
248 default:
249 break;
250 }
251 } else if ((fh->fh_type == FC_TYPE_BLS) &&
252 (fh->fh_r_ctl == FC_RCTL_BA_ABTS))
253 BNX2FC_TGT_DBG(tgt, "ABTS frame\n");
254 else {
255 BNX2FC_TGT_DBG(tgt, "Send L2 frame type 0x%x "
256 "rctl 0x%x thru non-offload path\n",
257 fh->fh_type, fh->fh_r_ctl);
258 return -ENODEV;
259 }
260 if (rc)
261 return -ENOMEM;
262 else
263 return 0;
264}
265
266/**
267 * bnx2fc_xmit - bnx2fc's FCoE frame transmit function
268 *
269 * @lport: the associated local port
270 * @fp: the fc_frame to be transmitted
271 */
272static int bnx2fc_xmit(struct fc_lport *lport, struct fc_frame *fp)
273{
274 struct ethhdr *eh;
275 struct fcoe_crc_eof *cp;
276 struct sk_buff *skb;
277 struct fc_frame_header *fh;
aea71a02 278 struct bnx2fc_interface *interface;
fd8f8902 279 struct fcoe_ctlr *ctlr;
aea71a02 280 struct bnx2fc_hba *hba;
853e2bd2
BG		 281 struct fcoe_port *port;
282 struct fcoe_hdr *hp;
283 struct bnx2fc_rport *tgt;
1bd49b48 284 struct fc_stats *stats;
853e2bd2
BG		 285 u8 sof, eof;
286 u32 crc;
287 unsigned int hlen, tlen, elen;
288 int wlen, rc = 0;
289
290 port = (struct fcoe_port *)lport_priv(lport);
aea71a02 291 interface = port->priv;
fd8f8902 292 ctlr = bnx2fc_to_ctlr(interface);
aea71a02 293 hba = interface->hba;
853e2bd2
BG		 294
295 fh = fc_frame_header_get(fp);
296
297 skb = fp_skb(fp);
298 if (!lport->link_up) {
299 BNX2FC_HBA_DBG(lport, "bnx2fc_xmit link down\n");
300 kfree_skb(skb);
301 return 0;
302 }
303
304 if (unlikely(fh->fh_r_ctl == FC_RCTL_ELS_REQ)) {
fd8f8902 305 if (!ctlr->sel_fcf) {
853e2bd2
BG		 306 BNX2FC_HBA_DBG(lport, "FCF not selected yet!\n");
307 kfree_skb(skb);
308 return -EINVAL;
309 }
fd8f8902 310 if (fcoe_ctlr_els_send(ctlr, lport, skb))
853e2bd2
BG		 311 return 0;
312 }
313
314 sof = fr_sof(fp);
315 eof = fr_eof(fp);
316
317 /*
318 * Snoop the frame header to check if the frame is for
319 * an offloaded session
320 */
321 /*
322 * tgt_ofld_list access is synchronized using
323 * both hba mutex and hba lock. Atleast hba mutex or
324 * hba lock needs to be held for read access.
325 */
326
327 spin_lock_bh(&hba->hba_lock);
328 tgt = bnx2fc_tgt_lookup(port, ntoh24(fh->fh_d_id));
329 if (tgt && (test_bit(BNX2FC_FLAG_SESSION_READY, &tgt->flags))) {
330 /* This frame is for offloaded session */
331 BNX2FC_HBA_DBG(lport, "xmit: Frame is for offloaded session "
332 "port_id = 0x%x\n", ntoh24(fh->fh_d_id));
333 spin_unlock_bh(&hba->hba_lock);
334 rc = bnx2fc_xmit_l2_frame(tgt, fp);
335 if (rc != -ENODEV) {
336 kfree_skb(skb);
337 return rc;
338 }
339 } else {
340 spin_unlock_bh(&hba->hba_lock);
341 }
342
343 elen = sizeof(struct ethhdr);
344 hlen = sizeof(struct fcoe_hdr);
345 tlen = sizeof(struct fcoe_crc_eof);
346 wlen = (skb->len - tlen + sizeof(crc)) / FCOE_WORD_TO_BYTE;
347
348 skb->ip_summed = CHECKSUM_NONE;
349 crc = fcoe_fc_crc(fp);
350
351 /* copy port crc and eof to the skb buff */
352 if (skb_is_nonlinear(skb)) {
353 skb_frag_t *frag;
354 if (bnx2fc_get_paged_crc_eof(skb, tlen)) {
355 kfree_skb(skb);
356 return -ENOMEM;
357 }
358 frag = &skb_shinfo(skb)->frags[skb_shinfo(skb)->nr_frags - 1];
77dfce07 359 cp = kmap_atomic(skb_frag_page(frag)) + frag->page_offset;
853e2bd2
BG		 360 } else {
361 cp = (struct fcoe_crc_eof *)skb_put(skb, tlen);
362 }
363
364 memset(cp, 0, sizeof(*cp));
365 cp->fcoe_eof = eof;
366 cp->fcoe_crc32 = cpu_to_le32(~crc);
367 if (skb_is_nonlinear(skb)) {
77dfce07 368 kunmap_atomic(cp);
853e2bd2
BG		 369 cp = NULL;
370 }
371
372 /* adjust skb network/transport offsets to match mac/fcoe/port */
373 skb_push(skb, elen + hlen);
374 skb_reset_mac_header(skb);
375 skb_reset_network_header(skb);
376 skb->mac_len = elen;
377 skb->protocol = htons(ETH_P_FCOE);
aea71a02 378 skb->dev = interface->netdev;
853e2bd2
BG		 379
380 /* fill up mac and fcoe headers */
381 eh = eth_hdr(skb);
382 eh->h_proto = htons(ETH_P_FCOE);
fd8f8902 383 if (ctlr->map_dest)
853e2bd2
BG		 384 fc_fcoe_set_mac(eh->h_dest, fh->fh_d_id);
385 else
386 /* insert GW address */
fd8f8902 387 memcpy(eh->h_dest, ctlr->dest_addr, ETH_ALEN);
853e2bd2 388
fd8f8902
RL		 389 if (unlikely(ctlr->flogi_oxid != FC_XID_UNKNOWN))
390 memcpy(eh->h_source, ctlr->ctl_src_addr, ETH_ALEN);
853e2bd2
BG		 391 else
392 memcpy(eh->h_source, port->data_src_addr, ETH_ALEN);
393
394 hp = (struct fcoe_hdr *)(eh + 1);
395 memset(hp, 0, sizeof(*hp));
396 if (FC_FCOE_VER)
397 FC_FCOE_ENCAPS_VER(hp, FC_FCOE_VER);
398 hp->fcoe_sof = sof;
399
400 /* fcoe lso, mss is in max_payload which is non-zero for FCP data */
401 if (lport->seq_offload && fr_max_payload(fp)) {
402 skb_shinfo(skb)->gso_type = SKB_GSO_FCOE;
403 skb_shinfo(skb)->gso_size = fr_max_payload(fp);
404 } else {
405 skb_shinfo(skb)->gso_type = 0;
406 skb_shinfo(skb)->gso_size = 0;
407 }
408
409 /*update tx stats */
1bd49b48 410 stats = per_cpu_ptr(lport->stats, get_cpu());
853e2bd2
BG		 411 stats->TxFrames++;
412 stats->TxWords += wlen;
413 put_cpu();
414
415 /* send down to lld */
416 fr_dev(fp) = lport;
417 if (port->fcoe_pending_queue.qlen)
418 fcoe_check_wait_queue(lport, skb);
419 else if (fcoe_start_io(skb))
420 fcoe_check_wait_queue(lport, skb);
421
422 return 0;
423}
424
425/**
426 * bnx2fc_rcv - This is bnx2fc's receive function called by NET_RX_SOFTIRQ
427 *
428 * @skb: the receive socket buffer
429 * @dev: associated net device
430 * @ptype: context
431 * @olddev: last device
432 *
433 * This function receives the packet and builds FC frame and passes it up
434 */
435static int bnx2fc_rcv(struct sk_buff *skb, struct net_device *dev,
436 struct packet_type *ptype, struct net_device *olddev)
437{
438 struct fc_lport *lport;
aea71a02 439 struct bnx2fc_interface *interface;
fd8f8902 440 struct fcoe_ctlr *ctlr;
853e2bd2
BG		 441 struct fc_frame_header *fh;
442 struct fcoe_rcv_info *fr;
443 struct fcoe_percpu_s *bg;
01a4cc4d 444 struct sk_buff *tmp_skb;
853e2bd2
BG		 445 unsigned short oxid;
446
aea71a02
BPG		 447 interface = container_of(ptype, struct bnx2fc_interface,
448 fcoe_packet_type);
fd8f8902
RL		 449 ctlr = bnx2fc_to_ctlr(interface);
450 lport = ctlr->lp;
853e2bd2
BG		 451
452 if (unlikely(lport == NULL)) {
b2a554ff 453 printk(KERN_ERR PFX "bnx2fc_rcv: lport is NULL\n");
853e2bd2
BG		 454 goto err;
455 }
456
01a4cc4d
ML		 457 tmp_skb = skb_share_check(skb, GFP_ATOMIC);
458 if (!tmp_skb)
459 goto err;
460
461 skb = tmp_skb;
462
853e2bd2 463 if (unlikely(eth_hdr(skb)->h_proto != htons(ETH_P_FCOE))) {
b2a554ff 464 printk(KERN_ERR PFX "bnx2fc_rcv: Wrong FC type frame\n");
853e2bd2
BG		 465 goto err;
466 }
467
468 /*
469 * Check for minimum frame length, and make sure required FCoE
470 * and FC headers are pulled into the linear data area.
471 */
472 if (unlikely((skb->len < FCOE_MIN_FRAME) ||
473 !pskb_may_pull(skb, FCOE_HEADER_LEN)))
474 goto err;
475
476 skb_set_transport_header(skb, sizeof(struct fcoe_hdr));
477 fh = (struct fc_frame_header *) skb_transport_header(skb);
478
479 oxid = ntohs(fh->fh_ox_id);
480
481 fr = fcoe_dev_from_skb(skb);
482 fr->fr_dev = lport;
853e2bd2
BG		 483
484 bg = &bnx2fc_global;
fc05ab74 485 spin_lock(&bg->fcoe_rx_list.lock);
853e2bd2
BG		 486
487 __skb_queue_tail(&bg->fcoe_rx_list, skb);
488 if (bg->fcoe_rx_list.qlen == 1)
4b9bc86d 489 wake_up_process(bg->kthread);
853e2bd2 490
fc05ab74 491 spin_unlock(&bg->fcoe_rx_list.lock);
853e2bd2
BG		 492
493 return 0;
494err:
495 kfree_skb(skb);
496 return -1;
497}
498
499static int bnx2fc_l2_rcv_thread(void *arg)
500{
501 struct fcoe_percpu_s *bg = arg;
502 struct sk_buff *skb;
503
8698a745 504 set_user_nice(current, MIN_NICE);
853e2bd2
BG		 505 set_current_state(TASK_INTERRUPTIBLE);
506 while (!kthread_should_stop()) {
507 schedule();
853e2bd2
BG		 508 spin_lock_bh(&bg->fcoe_rx_list.lock);
509 while ((skb = __skb_dequeue(&bg->fcoe_rx_list)) != NULL) {
510 spin_unlock_bh(&bg->fcoe_rx_list.lock);
511 bnx2fc_recv_frame(skb);
512 spin_lock_bh(&bg->fcoe_rx_list.lock);
513 }
fee78712 514 __set_current_state(TASK_INTERRUPTIBLE);
853e2bd2 515 spin_unlock_bh(&bg->fcoe_rx_list.lock);
853e2bd2 516 }
fee78712 517 __set_current_state(TASK_RUNNING);
853e2bd2
BG		 518 return 0;
519}
520
521
522static void bnx2fc_recv_frame(struct sk_buff *skb)
523{
524 u32 fr_len;
525 struct fc_lport *lport;
526 struct fcoe_rcv_info *fr;
1bd49b48 527 struct fc_stats *stats;
853e2bd2
BG		 528 struct fc_frame_header *fh;
529 struct fcoe_crc_eof crc_eof;
530 struct fc_frame *fp;
531 struct fc_lport *vn_port;
532 struct fcoe_port *port;
533 u8 *mac = NULL;
534 u8 *dest_mac = NULL;
535 struct fcoe_hdr *hp;
536
537 fr = fcoe_dev_from_skb(skb);
538 lport = fr->fr_dev;
539 if (unlikely(lport == NULL)) {
b2a554ff 540 printk(KERN_ERR PFX "Invalid lport struct\n");
853e2bd2
BG		 541 kfree_skb(skb);
542 return;
543 }
544
545 if (skb_is_nonlinear(skb))
546 skb_linearize(skb);
547 mac = eth_hdr(skb)->h_source;
548 dest_mac = eth_hdr(skb)->h_dest;
549
550 /* Pull the header */
551 hp = (struct fcoe_hdr *) skb_network_header(skb);
552 fh = (struct fc_frame_header *) skb_transport_header(skb);
553 skb_pull(skb, sizeof(struct fcoe_hdr));
554 fr_len = skb->len - sizeof(struct fcoe_crc_eof);
555
853e2bd2
BG		 556 fp = (struct fc_frame *)skb;
557 fc_frame_init(fp);
558 fr_dev(fp) = lport;
559 fr_sof(fp) = hp->fcoe_sof;
560 if (skb_copy_bits(skb, fr_len, &crc_eof, sizeof(crc_eof))) {
853e2bd2
BG		 561 kfree_skb(skb);
562 return;
563 }
564 fr_eof(fp) = crc_eof.fcoe_eof;
565 fr_crc(fp) = crc_eof.fcoe_crc32;
566 if (pskb_trim(skb, fr_len)) {
853e2bd2
BG		 567 kfree_skb(skb);
568 return;
569 }
570
571 fh = fc_frame_header_get(fp);
572
573 vn_port = fc_vport_id_lookup(lport, ntoh24(fh->fh_d_id));
574 if (vn_port) {
575 port = lport_priv(vn_port);
6942df7f 576 if (!ether_addr_equal(port->data_src_addr, dest_mac)) {
853e2bd2 577 BNX2FC_HBA_DBG(lport, "fpma mismatch\n");
853e2bd2
BG		 578 kfree_skb(skb);
579 return;
580 }
581 }
582 if (fh->fh_r_ctl == FC_RCTL_DD_SOL_DATA &&
583 fh->fh_type == FC_TYPE_FCP) {
584 /* Drop FCP data. We dont this in L2 path */
853e2bd2
BG		 585 kfree_skb(skb);
586 return;
587 }
588 if (fh->fh_r_ctl == FC_RCTL_ELS_REQ &&
589 fh->fh_type == FC_TYPE_ELS) {
590 switch (fc_frame_payload_op(fp)) {
591 case ELS_LOGO:
592 if (ntoh24(fh->fh_s_id) == FC_FID_FLOGI) {
593 /* drop non-FIP LOGO */
853e2bd2
BG		 594 kfree_skb(skb);
595 return;
596 }
597 break;
598 }
599 }
3f8744d1
BPG		 600
601 if (fh->fh_r_ctl == FC_RCTL_BA_ABTS) {
602 /* Drop incoming ABTS */
3f8744d1
BPG		 603 kfree_skb(skb);
604 return;
605 }
606
d576a5e8
NH		 607 stats = per_cpu_ptr(lport->stats, smp_processor_id());
608 stats->RxFrames++;
609 stats->RxWords += fr_len / FCOE_WORD_TO_BYTE;
610
853e2bd2
BG		 611 if (le32_to_cpu(fr_crc(fp)) !=
612 ~crc32(~0, skb->data, fr_len)) {
613 if (stats->InvalidCRCCount < 5)
614 printk(KERN_WARNING PFX "dropping frame with "
615 "CRC error\n");
616 stats->InvalidCRCCount++;
853e2bd2
BG		 617 kfree_skb(skb);
618 return;
619 }
853e2bd2
BG		 620 fc_exch_recv(lport, fp);
621}
622
623/**
624 * bnx2fc_percpu_io_thread - thread per cpu for ios
625 *
626 * @arg: ptr to bnx2fc_percpu_info structure
627 */
628int bnx2fc_percpu_io_thread(void *arg)
629{
630 struct bnx2fc_percpu_s *p = arg;
631 struct bnx2fc_work *work, *tmp;
632 LIST_HEAD(work_list);
633
8698a745 634 set_user_nice(current, MIN_NICE);
853e2bd2
BG		 635 set_current_state(TASK_INTERRUPTIBLE);
636 while (!kthread_should_stop()) {
637 schedule();
853e2bd2
BG		 638 spin_lock_bh(&p->fp_work_lock);
639 while (!list_empty(&p->work_list)) {
640 list_splice_init(&p->work_list, &work_list);
641 spin_unlock_bh(&p->fp_work_lock);
642
643 list_for_each_entry_safe(work, tmp, &work_list, list) {
644 list_del_init(&work->list);
645 bnx2fc_process_cq_compl(work->tgt, work->wqe);
646 kfree(work);
647 }
648
649 spin_lock_bh(&p->fp_work_lock);
650 }
fee78712 651 __set_current_state(TASK_INTERRUPTIBLE);
853e2bd2 652 spin_unlock_bh(&p->fp_work_lock);
853e2bd2 653 }
fee78712 654 __set_current_state(TASK_RUNNING);
853e2bd2
BG		 655
656 return 0;
657}
658
659static struct fc_host_statistics *bnx2fc_get_host_stats(struct Scsi_Host *shost)
660{
661 struct fc_host_statistics *bnx2fc_stats;
662 struct fc_lport *lport = shost_priv(shost);
663 struct fcoe_port *port = lport_priv(lport);
aea71a02
BPG		 664 struct bnx2fc_interface *interface = port->priv;
665 struct bnx2fc_hba *hba = interface->hba;
853e2bd2
BG		 666 struct fcoe_statistics_params *fw_stats;
667 int rc = 0;
668
669 fw_stats = (struct fcoe_statistics_params *)hba->stats_buffer;
670 if (!fw_stats)
671 return NULL;
672
673 bnx2fc_stats = fc_get_host_stats(shost);
674
675 init_completion(&hba->stat_req_done);
676 if (bnx2fc_send_stat_req(hba))
677 return bnx2fc_stats;
678 rc = wait_for_completion_timeout(&hba->stat_req_done, (2 * HZ));
679 if (!rc) {
680 BNX2FC_HBA_DBG(lport, "FW stat req timed out\n");
681 return bnx2fc_stats;
682 }
f246fe2a
BPG		 683 BNX2FC_STATS(hba, rx_stat2, fc_crc_cnt);
684 bnx2fc_stats->invalid_crc_count += hba->bfw_stats.fc_crc_cnt;
685 BNX2FC_STATS(hba, tx_stat, fcoe_tx_pkt_cnt);
686 bnx2fc_stats->tx_frames += hba->bfw_stats.fcoe_tx_pkt_cnt;
687 BNX2FC_STATS(hba, tx_stat, fcoe_tx_byte_cnt);
688 bnx2fc_stats->tx_words += ((hba->bfw_stats.fcoe_tx_byte_cnt) / 4);
689 BNX2FC_STATS(hba, rx_stat0, fcoe_rx_pkt_cnt);
690 bnx2fc_stats->rx_frames += hba->bfw_stats.fcoe_rx_pkt_cnt;
691 BNX2FC_STATS(hba, rx_stat0, fcoe_rx_byte_cnt);
692 bnx2fc_stats->rx_words += ((hba->bfw_stats.fcoe_rx_byte_cnt) / 4);
853e2bd2
BG		 693
694 bnx2fc_stats->dumped_frames = 0;
695 bnx2fc_stats->lip_count = 0;
696 bnx2fc_stats->nos_count = 0;
697 bnx2fc_stats->loss_of_sync_count = 0;
698 bnx2fc_stats->loss_of_signal_count = 0;
699 bnx2fc_stats->prim_seq_protocol_err_count = 0;
700
f246fe2a
BPG		 701 memcpy(&hba->prev_stats, hba->stats_buffer,
702 sizeof(struct fcoe_statistics_params));
853e2bd2
BG		 703 return bnx2fc_stats;
704}
705
706static int bnx2fc_shost_config(struct fc_lport *lport, struct device *dev)
707{
708 struct fcoe_port *port = lport_priv(lport);
aea71a02 709 struct bnx2fc_interface *interface = port->priv;
c13d2b6d 710 struct bnx2fc_hba *hba = interface->hba;
853e2bd2
BG		 711 struct Scsi_Host *shost = lport->host;
712 int rc = 0;
713
714 shost->max_cmd_len = BNX2FC_MAX_CMD_LEN;
10755d3f 715 shost->max_lun = bnx2fc_max_luns;
853e2bd2
BG		 716 shost->max_id = BNX2FC_MAX_FCP_TGT;
717 shost->max_channel = 0;
718 if (lport->vport)
719 shost->transportt = bnx2fc_vport_xport_template;
720 else
721 shost->transportt = bnx2fc_transport_template;
722
723 /* Add the new host to SCSI-ml */
724 rc = scsi_add_host(lport->host, dev);
725 if (rc) {
726 printk(KERN_ERR PFX "Error on scsi_add_host\n");
727 return rc;
728 }
729 if (!lport->vport)
730 fc_host_max_npiv_vports(lport->host) = USHRT_MAX;
c13d2b6d 731 snprintf(fc_host_symbolic_name(lport->host), 256,
17d87c45 732 "%s (QLogic %s) v%s over %s",
c13d2b6d 733 BNX2FC_NAME, hba->chip_num, BNX2FC_VERSION,
aea71a02 734 interface->netdev->name);
853e2bd2
BG		 735
736 return 0;
737}
738
853e2bd2
BG		 739static int bnx2fc_link_ok(struct fc_lport *lport)
740{
741 struct fcoe_port *port = lport_priv(lport);
aea71a02
BPG		 742 struct bnx2fc_interface *interface = port->priv;
743 struct bnx2fc_hba *hba = interface->hba;
853e2bd2
BG		 744 struct net_device *dev = hba->phys_dev;
745 int rc = 0;
746
747 if ((dev->flags & IFF_UP) && netif_carrier_ok(dev))
748 clear_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
749 else {
750 set_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
751 rc = -1;
752 }
753 return rc;
754}
755
756/**
757 * bnx2fc_get_link_state - get network link state
758 *
759 * @hba: adapter instance pointer
760 *
761 * updates adapter structure flag based on netdev state
762 */
763void bnx2fc_get_link_state(struct bnx2fc_hba *hba)
764{
aea71a02 765 if (test_bit(__LINK_STATE_NOCARRIER, &hba->phys_dev->state))
853e2bd2
BG		 766 set_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
767 else
768 clear_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state);
769}
770
52439607 771static int bnx2fc_net_config(struct fc_lport *lport, struct net_device *netdev)
853e2bd2
BG		 772{
773 struct bnx2fc_hba *hba;
aea71a02 774 struct bnx2fc_interface *interface;
fd8f8902 775 struct fcoe_ctlr *ctlr;
853e2bd2
BG		 776 struct fcoe_port *port;
777 u64 wwnn, wwpn;
778
779 port = lport_priv(lport);
aea71a02 780 interface = port->priv;
fd8f8902 781 ctlr = bnx2fc_to_ctlr(interface);
aea71a02 782 hba = interface->hba;
853e2bd2
BG		 783
784 /* require support for get_pauseparam ethtool op. */
785 if (!hba->phys_dev->ethtool_ops ||
786 !hba->phys_dev->ethtool_ops->get_pauseparam)
787 return -EOPNOTSUPP;
788
1294bfe6 789 if (fc_set_mfs(lport, BNX2FC_MFS))
853e2bd2
BG		 790 return -EINVAL;
791
792 skb_queue_head_init(&port->fcoe_pending_queue);
793 port->fcoe_pending_queue_active = 0;
794 setup_timer(&port->timer, fcoe_queue_timer, (unsigned long) lport);
795
0e0f9cd6 796 fcoe_link_speed_update(lport);
853e2bd2
BG		 797
798 if (!lport->vport) {
52439607 799 if (fcoe_get_wwn(netdev, &wwnn, NETDEV_FCOE_WWNN))
fd8f8902 800 wwnn = fcoe_wwn_from_mac(ctlr->ctl_src_addr,
52439607 801 1, 0);
853e2bd2
BG		 802 BNX2FC_HBA_DBG(lport, "WWNN = 0x%llx\n", wwnn);
803 fc_set_wwnn(lport, wwnn);
804
52439607 805 if (fcoe_get_wwn(netdev, &wwpn, NETDEV_FCOE_WWPN))
fd8f8902 806 wwpn = fcoe_wwn_from_mac(ctlr->ctl_src_addr,
52439607
BPG		 807 2, 0);
808
853e2bd2
BG		 809 BNX2FC_HBA_DBG(lport, "WWPN = 0x%llx\n", wwpn);
810 fc_set_wwpn(lport, wwpn);
811 }
812
813 return 0;
814}
815
816static void bnx2fc_destroy_timer(unsigned long data)
817{
818 struct bnx2fc_hba *hba = (struct bnx2fc_hba *)data;
819
cd703ae7
BPG		 820 printk(KERN_ERR PFX "ERROR:bnx2fc_destroy_timer - "
821 "Destroy compl not received!!\n");
aea71a02 822 set_bit(BNX2FC_FLAG_DESTROY_CMPL, &hba->flags);
853e2bd2
BG		 823 wake_up_interruptible(&hba->destroy_wait);
824}
825
826/**
827 * bnx2fc_indicate_netevent - Generic netdev event handler
828 *
829 * @context: adapter structure pointer
830 * @event: event type
415199f2 831 * @vlan_id: vlan id - associated vlan id with this event
853e2bd2
BG		 832 *
833 * Handles NETDEV_UP, NETDEV_DOWN, NETDEV_GOING_DOWN,NETDEV_CHANGE and
abc49a93 834 * NETDEV_CHANGE_MTU events. Handle NETDEV_UNREGISTER only for vlans.
853e2bd2 835 */
415199f2
MC		 836static void bnx2fc_indicate_netevent(void *context, unsigned long event,
837 u16 vlan_id)
853e2bd2
BG		 838{
839 struct bnx2fc_hba *hba = (struct bnx2fc_hba *)context;
6e89ea3f 840 struct fcoe_ctlr_device *cdev;
aea71a02 841 struct fc_lport *lport;
853e2bd2 842 struct fc_lport *vport;
abc49a93 843 struct bnx2fc_interface *interface, *tmp;
fd8f8902 844 struct fcoe_ctlr *ctlr;
aea71a02 845 int wait_for_upload = 0;
853e2bd2
BG		 846 u32 link_possible = 1;
847
abc49a93 848 if (vlan_id != 0 && event != NETDEV_UNREGISTER)
415199f2
MC		 849 return;
850
853e2bd2
BG		 851 switch (event) {
852 case NETDEV_UP:
853e2bd2
BG		 853 if (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state))
854 printk(KERN_ERR "indicate_netevent: "\
aea71a02 855 "hba is not UP!!\n");
853e2bd2
BG		 856 break;
857
858 case NETDEV_DOWN:
853e2bd2
BG		 859 clear_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state);
860 clear_bit(ADAPTER_STATE_UP, &hba->adapter_state);
861 link_possible = 0;
862 break;
863
864 case NETDEV_GOING_DOWN:
853e2bd2
BG		 865 set_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state);
866 link_possible = 0;
867 break;
868
869 case NETDEV_CHANGE:
853e2bd2
BG		 870 break;
871
abc49a93
BPG		 872 case NETDEV_UNREGISTER:
873 if (!vlan_id)
874 return;
875 mutex_lock(&bnx2fc_dev_lock);
876 list_for_each_entry_safe(interface, tmp, &if_list, list) {
26b2982f
NNS		 877 if (interface->hba == hba &&
878 interface->vlan_id == (vlan_id & VLAN_VID_MASK))
879 __bnx2fc_destroy(interface);
abc49a93
BPG		 880 }
881 mutex_unlock(&bnx2fc_dev_lock);
06c4f20d
EW		 882
883 /* Ensure ALL destroy work has been completed before return */
884 flush_workqueue(bnx2fc_wq);
abc49a93
BPG		 885 return;
886
853e2bd2 887 default:
853e2bd2
BG		 888 return;
889 }
890
aea71a02
BPG		 891 mutex_lock(&bnx2fc_dev_lock);
892 list_for_each_entry(interface, &if_list, list) {
853e2bd2 893
aea71a02
BPG		 894 if (interface->hba != hba)
895 continue;
896
fd8f8902
RL		 897 ctlr = bnx2fc_to_ctlr(interface);
898 lport = ctlr->lp;
aea71a02
BPG		 899 BNX2FC_HBA_DBG(lport, "netevent handler - event=%s %ld\n",
900 interface->netdev->name, event);
901
0e0f9cd6 902 fcoe_link_speed_update(lport);
aea71a02 903
6e89ea3f 904 cdev = fcoe_ctlr_to_ctlr_dev(ctlr);
aea71a02
BPG		 905
906 if (link_possible && !bnx2fc_link_ok(lport)) {
6e89ea3f
RL		 907 switch (cdev->enabled) {
908 case FCOE_CTLR_DISABLED:
909 pr_info("Link up while interface is disabled.\n");
910 break;
911 case FCOE_CTLR_ENABLED:
912 case FCOE_CTLR_UNUSED:
913 /* Reset max recv frame size to default */
914 fc_set_mfs(lport, BNX2FC_MFS);
915 /*
916 * ctlr link up will only be handled during
917 * enable to avoid sending discovery
918 * solicitation on a stale vlan
919 */
920 if (interface->enabled)
921 fcoe_ctlr_link_up(ctlr);
922 };
fd8f8902 923 } else if (fcoe_ctlr_link_down(ctlr)) {
6e89ea3f
RL		 924 switch (cdev->enabled) {
925 case FCOE_CTLR_DISABLED:
926 pr_info("Link down while interface is disabled.\n");
927 break;
928 case FCOE_CTLR_ENABLED:
929 case FCOE_CTLR_UNUSED:
930 mutex_lock(&lport->lp_mutex);
931 list_for_each_entry(vport, &lport->vports, list)
932 fc_host_port_type(vport->host) =
933 FC_PORTTYPE_UNKNOWN;
934 mutex_unlock(&lport->lp_mutex);
935 fc_host_port_type(lport->host) =
936 FC_PORTTYPE_UNKNOWN;
937 per_cpu_ptr(lport->stats,
938 get_cpu())->LinkFailureCount++;
939 put_cpu();
940 fcoe_clean_pending_queue(lport);
941 wait_for_upload = 1;
942 };
aea71a02
BPG		 943 }
944 }
945 mutex_unlock(&bnx2fc_dev_lock);
853e2bd2 946
aea71a02
BPG		 947 if (wait_for_upload) {
948 clear_bit(ADAPTER_STATE_READY, &hba->adapter_state);
949 init_waitqueue_head(&hba->shutdown_wait);
950 BNX2FC_MISC_DBG("indicate_netevent "
951 "num_ofld_sess = %d\n",
952 hba->num_ofld_sess);
953 hba->wait_for_link_down = 1;
954 wait_event_interruptible(hba->shutdown_wait,
955 (hba->num_ofld_sess == 0));
956 BNX2FC_MISC_DBG("wakeup - num_ofld_sess = %d\n",
853e2bd2 957 hba->num_ofld_sess);
aea71a02 958 hba->wait_for_link_down = 0;
853e2bd2 959
aea71a02
BPG		 960 if (signal_pending(current))
961 flush_signals(current);
853e2bd2
BG		 962 }
963}
964
965static int bnx2fc_libfc_config(struct fc_lport *lport)
966{
967
968 /* Set the function pointers set by bnx2fc driver */
969 memcpy(&lport->tt, &bnx2fc_libfc_fcn_templ,
970 sizeof(struct libfc_function_template));
971 fc_elsct_init(lport);
972 fc_exch_init(lport);
973 fc_rport_init(lport);
0807619d
RL		 974 fc_disc_init(lport);
975 fc_disc_config(lport, lport);
853e2bd2
BG		 976 return 0;
977}
978
0eb43b4b 979static int bnx2fc_em_config(struct fc_lport *lport, struct bnx2fc_hba *hba)
853e2bd2 980{
0eb43b4b 981 int fcoe_min_xid, fcoe_max_xid;
7d742f65 982
0eb43b4b 983 fcoe_min_xid = hba->max_xid + 1;
7d742f65 984 if (nr_cpu_ids <= 2)
0eb43b4b 985 fcoe_max_xid = hba->max_xid + FCOE_XIDS_PER_CPU_OFFSET;
7d742f65 986 else
0eb43b4b
BPG		 987 fcoe_max_xid = hba->max_xid + FCOE_MAX_XID_OFFSET;
988 if (!fc_exch_mgr_alloc(lport, FC_CLASS_3, fcoe_min_xid,
989 fcoe_max_xid, NULL)) {
853e2bd2
BG		 990 printk(KERN_ERR PFX "em_config:fc_exch_mgr_alloc failed\n");
991 return -ENOMEM;
992 }
993
853e2bd2
BG		 994 return 0;
995}
996
997static int bnx2fc_lport_config(struct fc_lport *lport)
998{
999 lport->link_up = 0;
1000 lport->qfull = 0;
44c570b5
BPG		 1001 lport->max_retry_count = BNX2FC_MAX_RETRY_CNT;
1002 lport->max_rport_retry_count = BNX2FC_MAX_RPORT_RETRY_CNT;
853e2bd2
BG		 1003 lport->e_d_tov = 2 * 1000;
1004 lport->r_a_tov = 10 * 1000;
1005
853e2bd2
BG		 1006 lport->service_params = (FCP_SPPF_INIT_FCN | FCP_SPPF_RD_XRDY_DIS |
1007 FCP_SPPF_RETRY | FCP_SPPF_CONF_COMPL);
853e2bd2
BG		 1008 lport->does_npiv = 1;
1009
1010 memset(&lport->rnid_gen, 0, sizeof(struct fc_els_rnid_gen));
1011 lport->rnid_gen.rnid_atype = BNX2FC_RNID_HBA;
1012
1013 /* alloc stats structure */
1014 if (fc_lport_init_stats(lport))
1015 return -ENOMEM;
1016
1017 /* Finish fc_lport configuration */
1018 fc_lport_config(lport);
1019
1020 return 0;
1021}
1022
1023/**
1024 * bnx2fc_fip_recv - handle a received FIP frame.
1025 *
1026 * @skb: the received skb
1027 * @dev: associated &net_device
1028 * @ptype: the &packet_type structure which was used to register this handler.
1029 * @orig_dev: original receive &net_device, in case @ dev is a bond.
1030 *
1031 * Returns: 0 for success
1032 */
1033static int bnx2fc_fip_recv(struct sk_buff *skb, struct net_device *dev,
1034 struct packet_type *ptype,
1035 struct net_device *orig_dev)
1036{
aea71a02 1037 struct bnx2fc_interface *interface;
fd8f8902 1038 struct fcoe_ctlr *ctlr;
aea71a02
BPG		 1039 interface = container_of(ptype, struct bnx2fc_interface,
1040 fip_packet_type);
fd8f8902
RL		 1041 ctlr = bnx2fc_to_ctlr(interface);
1042 fcoe_ctlr_recv(ctlr, skb);
853e2bd2
BG		 1043 return 0;
1044}
1045
1046/**
1047 * bnx2fc_update_src_mac - Update Ethernet MAC filters.
1048 *
1049 * @fip: FCoE controller.
1050 * @old: Unicast MAC address to delete if the MAC is non-zero.
1051 * @new: Unicast MAC address to add.
1052 *
1053 * Remove any previously-set unicast MAC filter.
1054 * Add secondary FCoE MAC address filter for our OUI.
1055 */
1056static void bnx2fc_update_src_mac(struct fc_lport *lport, u8 *addr)
1057{
1058 struct fcoe_port *port = lport_priv(lport);
1059
1060 memcpy(port->data_src_addr, addr, ETH_ALEN);
1061}
1062
1063/**
1064 * bnx2fc_get_src_mac - return the ethernet source address for an lport
1065 *
1066 * @lport: libfc port
1067 */
1068static u8 *bnx2fc_get_src_mac(struct fc_lport *lport)
1069{
1070 struct fcoe_port *port;
1071
1072 port = (struct fcoe_port *)lport_priv(lport);
1073 return port->data_src_addr;
1074}
1075
1076/**
1077 * bnx2fc_fip_send - send an Ethernet-encapsulated FIP frame.
1078 *
1079 * @fip: FCoE controller.
1080 * @skb: FIP Packet.
1081 */
1082static void bnx2fc_fip_send(struct fcoe_ctlr *fip, struct sk_buff *skb)
1083{
3f12f76e
CD		 1084 struct fip_header *fiph;
1085 struct ethhdr *eth_hdr;
1086 u16 op;
1087 u8 sub;
1088
1089 fiph = (struct fip_header *) ((void *)skb->data + 2 * ETH_ALEN + 2);
1090 eth_hdr = (struct ethhdr *)skb_mac_header(skb);
1091 op = ntohs(fiph->fip_op);
1092 sub = fiph->fip_subcode;
1093
1094 if (op == FIP_OP_CTRL && sub == FIP_SC_SOL && bnx2fc_log_fka)
1095 BNX2FC_MISC_DBG("Sending FKA from %pM to %pM.\n",
1096 eth_hdr->h_source, eth_hdr->h_dest);
1097
853e2bd2
BG		 1098 skb->dev = bnx2fc_from_ctlr(fip)->netdev;
1099 dev_queue_xmit(skb);
1100}
1101
1102static int bnx2fc_vport_create(struct fc_vport *vport, bool disabled)
1103{
1104 struct Scsi_Host *shost = vport_to_shost(vport);
1105 struct fc_lport *n_port = shost_priv(shost);
1106 struct fcoe_port *port = lport_priv(n_port);
aea71a02
BPG		 1107 struct bnx2fc_interface *interface = port->priv;
1108 struct net_device *netdev = interface->netdev;
853e2bd2 1109 struct fc_lport *vn_port;
861efc54
BPG		 1110 int rc;
1111 char buf[32];
1112
1113 rc = fcoe_validate_vport_create(vport);
1114 if (rc) {
1115 fcoe_wwn_to_str(vport->port_name, buf, sizeof(buf));
1116 printk(KERN_ERR PFX "Failed to create vport, "
1117 "WWPN (0x%s) already exists\n",
1118 buf);
1119 return rc;
1120 }
853e2bd2 1121
aea71a02 1122 if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &interface->hba->flags)) {
853e2bd2 1123 printk(KERN_ERR PFX "vn ports cannot be created on"
aea71a02 1124 "this interface\n");
853e2bd2
BG		 1125 return -EIO;
1126 }
4bc71cb9 1127 rtnl_lock();
853e2bd2 1128 mutex_lock(&bnx2fc_dev_lock);
aea71a02 1129 vn_port = bnx2fc_if_create(interface, &vport->dev, 1);
853e2bd2 1130 mutex_unlock(&bnx2fc_dev_lock);
4bc71cb9 1131 rtnl_unlock();
853e2bd2 1132
b6829c72 1133 if (!vn_port) {
853e2bd2
BG		 1134 printk(KERN_ERR PFX "bnx2fc_vport_create (%s) failed\n",
1135 netdev->name);
1136 return -EIO;
1137 }
1138
10755d3f
JC		 1139 if (bnx2fc_devloss_tmo)
1140 fc_host_dev_loss_tmo(vn_port->host) = bnx2fc_devloss_tmo;
1141
853e2bd2
BG		 1142 if (disabled) {
1143 fc_vport_set_state(vport, FC_VPORT_DISABLED);
1144 } else {
1145 vn_port->boot_time = jiffies;
1146 fc_lport_init(vn_port);
1147 fc_fabric_login(vn_port);
1148 fc_vport_setlink(vn_port);
1149 }
1150 return 0;
1151}
1152
abc49a93
BPG		 1153static void bnx2fc_free_vport(struct bnx2fc_hba *hba, struct fc_lport *lport)
1154{
1155 struct bnx2fc_lport *blport, *tmp;
1156
1157 spin_lock_bh(&hba->hba_lock);
1158 list_for_each_entry_safe(blport, tmp, &hba->vports, list) {
1159 if (blport->lport == lport) {
1160 list_del(&blport->list);
1161 kfree(blport);
1162 }
1163 }
1164 spin_unlock_bh(&hba->hba_lock);
1165}
1166
853e2bd2
BG		 1167static int bnx2fc_vport_destroy(struct fc_vport *vport)
1168{
1169 struct Scsi_Host *shost = vport_to_shost(vport);
1170 struct fc_lport *n_port = shost_priv(shost);
1171 struct fc_lport *vn_port = vport->dd_data;
1172 struct fcoe_port *port = lport_priv(vn_port);
abc49a93 1173 struct bnx2fc_interface *interface = port->priv;
cdf54668
BPG		 1174 struct fc_lport *v_port;
1175 bool found = false;
853e2bd2
BG		 1176
1177 mutex_lock(&n_port->lp_mutex);
cdf54668
BPG		 1178 list_for_each_entry(v_port, &n_port->vports, list)
1179 if (v_port->vport == vport) {
1180 found = true;
1181 break;
1182 }
1183
1184 if (!found) {
1185 mutex_unlock(&n_port->lp_mutex);
1186 return -ENOENT;
1187 }
853e2bd2
BG		 1188 list_del(&vn_port->list);
1189 mutex_unlock(&n_port->lp_mutex);
abc49a93
BPG		 1190 bnx2fc_free_vport(interface->hba, port->lport);
1191 bnx2fc_port_shutdown(port->lport);
1192 bnx2fc_interface_put(interface);
853e2bd2
BG		 1193 queue_work(bnx2fc_wq, &port->destroy_work);
1194 return 0;
1195}
1196
1197static int bnx2fc_vport_disable(struct fc_vport *vport, bool disable)
1198{
1199 struct fc_lport *lport = vport->dd_data;
1200
1201 if (disable) {
1202 fc_vport_set_state(vport, FC_VPORT_DISABLED);
1203 fc_fabric_logoff(lport);
1204 } else {
1205 lport->boot_time = jiffies;
1206 fc_fabric_login(lport);
1207 fc_vport_setlink(lport);
1208 }
1209 return 0;
1210}
1211
1212
776cebca 1213static int bnx2fc_interface_setup(struct bnx2fc_interface *interface)
853e2bd2 1214{
aea71a02
BPG		 1215 struct net_device *netdev = interface->netdev;
1216 struct net_device *physdev = interface->hba->phys_dev;
fd8f8902 1217 struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface);
853e2bd2
BG		 1218 struct netdev_hw_addr *ha;
1219 int sel_san_mac = 0;
1220
853e2bd2
BG		 1221 /* setup Source MAC Address */
1222 rcu_read_lock();
1223 for_each_dev_addr(physdev, ha) {
1224 BNX2FC_MISC_DBG("net_config: ha->type = %d, fip_mac = ",
1225 ha->type);
1226 printk(KERN_INFO "%2x:%2x:%2x:%2x:%2x:%2x\n", ha->addr[0],
1227 ha->addr[1], ha->addr[2], ha->addr[3],
1228 ha->addr[4], ha->addr[5]);
1229
1230 if ((ha->type == NETDEV_HW_ADDR_T_SAN) &&
1231 (is_valid_ether_addr(ha->addr))) {
fd8f8902 1232 memcpy(ctlr->ctl_src_addr, ha->addr,
aea71a02 1233 ETH_ALEN);
853e2bd2
BG		 1234 sel_san_mac = 1;
1235 BNX2FC_MISC_DBG("Found SAN MAC\n");
1236 }
1237 }
1238 rcu_read_unlock();
1239
1240 if (!sel_san_mac)
1241 return -ENODEV;
1242
aea71a02
BPG		 1243 interface->fip_packet_type.func = bnx2fc_fip_recv;
1244 interface->fip_packet_type.type = htons(ETH_P_FIP);
1245 interface->fip_packet_type.dev = netdev;
1246 dev_add_pack(&interface->fip_packet_type);
853e2bd2 1247
aea71a02
BPG		 1248 interface->fcoe_packet_type.func = bnx2fc_rcv;
1249 interface->fcoe_packet_type.type = __constant_htons(ETH_P_FCOE);
1250 interface->fcoe_packet_type.dev = netdev;
1251 dev_add_pack(&interface->fcoe_packet_type);
853e2bd2
BG		 1252
1253 return 0;
1254}
1255
1256static int bnx2fc_attach_transport(void)
1257{
1258 bnx2fc_transport_template =
1259 fc_attach_transport(&bnx2fc_transport_function);
1260
1261 if (bnx2fc_transport_template == NULL) {
1262 printk(KERN_ERR PFX "Failed to attach FC transport\n");
1263 return -ENODEV;
1264 }
1265
1266 bnx2fc_vport_xport_template =
1267 fc_attach_transport(&bnx2fc_vport_xport_function);
1268 if (bnx2fc_vport_xport_template == NULL) {
1269 printk(KERN_ERR PFX
1270 "Failed to attach FC transport for vport\n");
1271 fc_release_transport(bnx2fc_transport_template);
1272 bnx2fc_transport_template = NULL;
1273 return -ENODEV;
1274 }
1275 return 0;
1276}
1277static void bnx2fc_release_transport(void)
1278{
1279 fc_release_transport(bnx2fc_transport_template);
1280 fc_release_transport(bnx2fc_vport_xport_template);
1281 bnx2fc_transport_template = NULL;
1282 bnx2fc_vport_xport_template = NULL;
1283}
1284
1285static void bnx2fc_interface_release(struct kref *kref)
1286{
8d55e507 1287 struct fcoe_ctlr_device *ctlr_dev;
aea71a02 1288 struct bnx2fc_interface *interface;
fd8f8902 1289 struct fcoe_ctlr *ctlr;
853e2bd2 1290 struct net_device *netdev;
853e2bd2 1291
aea71a02 1292 interface = container_of(kref, struct bnx2fc_interface, kref);
068bdce4 1293 BNX2FC_MISC_DBG("Interface is being released\n");
853e2bd2 1294
fd8f8902 1295 ctlr = bnx2fc_to_ctlr(interface);
8d55e507 1296 ctlr_dev = fcoe_ctlr_to_ctlr_dev(ctlr);
aea71a02 1297 netdev = interface->netdev;
853e2bd2
BG		 1298
1299 /* tear-down FIP controller */
aea71a02 1300 if (test_and_clear_bit(BNX2FC_CTLR_INIT_DONE, &interface->if_flags))
fd8f8902 1301 fcoe_ctlr_destroy(ctlr);
aea71a02 1302
8d55e507 1303 fcoe_ctlr_device_delete(ctlr_dev);
853e2bd2 1304
853e2bd2
BG		 1305 dev_put(netdev);
1306 module_put(THIS_MODULE);
1307}
1308
aea71a02 1309static inline void bnx2fc_interface_get(struct bnx2fc_interface *interface)
853e2bd2 1310{
aea71a02 1311 kref_get(&interface->kref);
853e2bd2
BG		 1312}
1313
aea71a02 1314static inline void bnx2fc_interface_put(struct bnx2fc_interface *interface)
853e2bd2 1315{
aea71a02 1316 kref_put(&interface->kref, bnx2fc_interface_release);
853e2bd2 1317}
aea71a02 1318static void bnx2fc_hba_destroy(struct bnx2fc_hba *hba)
853e2bd2 1319{
aea71a02
BPG		 1320 /* Free the command manager */
1321 if (hba->cmd_mgr) {
1322 bnx2fc_cmd_mgr_free(hba->cmd_mgr);
1323 hba->cmd_mgr = NULL;
1324 }
1325 kfree(hba->tgt_ofld_list);
853e2bd2
BG		 1326 bnx2fc_unbind_pcidev(hba);
1327 kfree(hba);
1328}
1329
1330/**
aea71a02 1331 * bnx2fc_hba_create - create a new bnx2fc hba
853e2bd2
BG		 1332 *
1333 * @cnic: pointer to cnic device
1334 *
aea71a02
BPG		 1335 * Creates a new FCoE hba on the given device.
1336 *
853e2bd2 1337 */
aea71a02 1338static struct bnx2fc_hba *bnx2fc_hba_create(struct cnic_dev *cnic)
853e2bd2
BG		 1339{
1340 struct bnx2fc_hba *hba;
2e499d3c 1341 struct fcoe_capabilities *fcoe_cap;
853e2bd2
BG		 1342 int rc;
1343
1344 hba = kzalloc(sizeof(*hba), GFP_KERNEL);
1345 if (!hba) {
1346 printk(KERN_ERR PFX "Unable to allocate hba structure\n");
1347 return NULL;
1348 }
1349 spin_lock_init(&hba->hba_lock);
1350 mutex_init(&hba->hba_mutex);
1351
1352 hba->cnic = cnic;
0eb43b4b
BPG		 1353
1354 hba->max_tasks = cnic->max_fcoe_exchanges;
1355 hba->elstm_xids = (hba->max_tasks / 2);
1356 hba->max_outstanding_cmds = hba->elstm_xids;
1357 hba->max_xid = (hba->max_tasks - 1);
1358
853e2bd2 1359 rc = bnx2fc_bind_pcidev(hba);
aea71a02
BPG		 1360 if (rc) {
1361 printk(KERN_ERR PFX "create_adapter: bind error\n");
853e2bd2 1362 goto bind_err;
aea71a02 1363 }
853e2bd2 1364 hba->phys_dev = cnic->netdev;
aea71a02
BPG		 1365 hba->next_conn_id = 0;
1366
1367 hba->tgt_ofld_list =
1368 kzalloc(sizeof(struct bnx2fc_rport *) * BNX2FC_NUM_MAX_SESS,
1369 GFP_KERNEL);
1370 if (!hba->tgt_ofld_list) {
1371 printk(KERN_ERR PFX "Unable to allocate tgt offload list\n");
1372 goto tgtofld_err;
1373 }
1374
1375 hba->num_ofld_sess = 0;
1376
0eb43b4b 1377 hba->cmd_mgr = bnx2fc_cmd_mgr_alloc(hba);
aea71a02
BPG		 1378 if (!hba->cmd_mgr) {
1379 printk(KERN_ERR PFX "em_config:bnx2fc_cmd_mgr_alloc failed\n");
1380 goto cmgr_err;
1381 }
2e499d3c
BW		 1382 fcoe_cap = &hba->fcoe_cap;
1383
1384 fcoe_cap->capability1 = BNX2FC_TM_MAX_SQES <<
1385 FCOE_IOS_PER_CONNECTION_SHIFT;
1386 fcoe_cap->capability1 |= BNX2FC_NUM_MAX_SESS <<
1387 FCOE_LOGINS_PER_PORT_SHIFT;
0eb43b4b 1388 fcoe_cap->capability2 = hba->max_outstanding_cmds <<
2e499d3c
BW		 1389 FCOE_NUMBER_OF_EXCHANGES_SHIFT;
1390 fcoe_cap->capability2 |= BNX2FC_MAX_NPIV <<
1391 FCOE_NPIV_WWN_PER_PORT_SHIFT;
1392 fcoe_cap->capability3 = BNX2FC_NUM_MAX_SESS <<
1393 FCOE_TARGETS_SUPPORTED_SHIFT;
0eb43b4b 1394 fcoe_cap->capability3 |= hba->max_outstanding_cmds <<
2e499d3c
BW		 1395 FCOE_OUTSTANDING_COMMANDS_SHIFT;
1396 fcoe_cap->capability4 = FCOE_CAPABILITY4_STATEFUL;
853e2bd2
BG		 1397
1398 init_waitqueue_head(&hba->shutdown_wait);
1399 init_waitqueue_head(&hba->destroy_wait);
aea71a02 1400 INIT_LIST_HEAD(&hba->vports);
853e2bd2
BG		 1401
1402 return hba;
aea71a02
BPG		 1403
1404cmgr_err:
1405 kfree(hba->tgt_ofld_list);
1406tgtofld_err:
1407 bnx2fc_unbind_pcidev(hba);
853e2bd2 1408bind_err:
853e2bd2
BG		 1409 kfree(hba);
1410 return NULL;
1411}
1412
aea71a02
BPG		 1413struct bnx2fc_interface *bnx2fc_interface_create(struct bnx2fc_hba *hba,
1414 struct net_device *netdev,
1415 enum fip_state fip_mode)
853e2bd2 1416{
8d55e507 1417 struct fcoe_ctlr_device *ctlr_dev;
aea71a02 1418 struct bnx2fc_interface *interface;
fd8f8902
RL		 1419 struct fcoe_ctlr *ctlr;
1420 int size;
853e2bd2 1421 int rc = 0;
853e2bd2 1422
fd8f8902 1423 size = (sizeof(*interface) + sizeof(struct fcoe_ctlr));
8d55e507
RL		 1424 ctlr_dev = fcoe_ctlr_device_add(&netdev->dev, &bnx2fc_fcoe_sysfs_templ,
1425 size);
1426 if (!ctlr_dev) {
aea71a02
BPG		 1427 printk(KERN_ERR PFX "Unable to allocate interface structure\n");
1428 return NULL;
1429 }
8d55e507 1430 ctlr = fcoe_ctlr_device_priv(ctlr_dev);
9d34876f 1431 ctlr->cdev = ctlr_dev;
fd8f8902 1432 interface = fcoe_ctlr_priv(ctlr);
853e2bd2 1433 dev_hold(netdev);
aea71a02
BPG		 1434 kref_init(&interface->kref);
1435 interface->hba = hba;
1436 interface->netdev = netdev;
853e2bd2
BG		 1437
1438 /* Initialize FIP */
fd8f8902
RL		 1439 fcoe_ctlr_init(ctlr, fip_mode);
1440 ctlr->send = bnx2fc_fip_send;
1441 ctlr->update_mac = bnx2fc_update_src_mac;
1442 ctlr->get_src_addr = bnx2fc_get_src_mac;
aea71a02 1443 set_bit(BNX2FC_CTLR_INIT_DONE, &interface->if_flags);
853e2bd2 1444
776cebca 1445 rc = bnx2fc_interface_setup(interface);
aea71a02
BPG		 1446 if (!rc)
1447 return interface;
853e2bd2 1448
fd8f8902 1449 fcoe_ctlr_destroy(ctlr);
853e2bd2 1450 dev_put(netdev);
8d55e507 1451 fcoe_ctlr_device_delete(ctlr_dev);
aea71a02 1452 return NULL;
853e2bd2
BG		 1453}
1454
1455/**
1456 * bnx2fc_if_create - Create FCoE instance on a given interface
1457 *
aea71a02 1458 * @interface: FCoE interface to create a local port on
853e2bd2
BG		 1459 * @parent: Device pointer to be the parent in sysfs for the SCSI host
1460 * @npiv: Indicates if the port is vport or not
1461 *
1462 * Creates a fc_lport instance and a Scsi_Host instance and configure them.
1463 *
1464 * Returns: Allocated fc_lport or an error pointer
1465 */
aea71a02 1466static struct fc_lport *bnx2fc_if_create(struct bnx2fc_interface *interface,
853e2bd2
BG		 1467 struct device *parent, int npiv)
1468{
fd8f8902 1469 struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface);
134a4e27 1470 struct fc_lport *lport, *n_port;
853e2bd2
BG		 1471 struct fcoe_port *port;
1472 struct Scsi_Host *shost;
1473 struct fc_vport *vport = dev_to_vport(parent);
d36b3279 1474 struct bnx2fc_lport *blport;
0eb43b4b 1475 struct bnx2fc_hba *hba = interface->hba;
853e2bd2
BG		 1476 int rc = 0;
1477
d36b3279
BPG		 1478 blport = kzalloc(sizeof(struct bnx2fc_lport), GFP_KERNEL);
1479 if (!blport) {
fd8f8902 1480 BNX2FC_HBA_DBG(ctlr->lp, "Unable to alloc blport\n");
d36b3279
BPG		 1481 return NULL;
1482 }
1483
853e2bd2 1484 /* Allocate Scsi_Host structure */
0eb43b4b 1485 bnx2fc_shost_template.can_queue = hba->max_outstanding_cmds;
134a4e27
VD		 1486 if (!npiv)
1487 lport = libfc_host_alloc(&bnx2fc_shost_template, sizeof(*port));
1488 else
1489 lport = libfc_vport_create(vport, sizeof(*port));
853e2bd2
BG		 1490
1491 if (!lport) {
1492 printk(KERN_ERR PFX "could not allocate scsi host structure\n");
d36b3279 1493 goto free_blport;
853e2bd2
BG		 1494 }
1495 shost = lport->host;
1496 port = lport_priv(lport);
1497 port->lport = lport;
aea71a02 1498 port->priv = interface;
c3d7909b 1499 port->get_netdev = bnx2fc_netdev;
853e2bd2
BG		 1500 INIT_WORK(&port->destroy_work, bnx2fc_destroy_work);
1501
1502 /* Configure fcoe_port */
1503 rc = bnx2fc_lport_config(lport);
1504 if (rc)
1505 goto lp_config_err;
1506
1507 if (npiv) {
853e2bd2
BG		 1508 printk(KERN_ERR PFX "Setting vport names, 0x%llX 0x%llX\n",
1509 vport->node_name, vport->port_name);
1510 fc_set_wwnn(lport, vport->node_name);
1511 fc_set_wwpn(lport, vport->port_name);
1512 }
1513 /* Configure netdev and networking properties of the lport */
52439607 1514 rc = bnx2fc_net_config(lport, interface->netdev);
853e2bd2
BG		 1515 if (rc) {
1516 printk(KERN_ERR PFX "Error on bnx2fc_net_config\n");
1517 goto lp_config_err;
1518 }
1519
1520 rc = bnx2fc_shost_config(lport, parent);
1521 if (rc) {
1522 printk(KERN_ERR PFX "Couldnt configure shost for %s\n",
aea71a02 1523 interface->netdev->name);
853e2bd2
BG		 1524 goto lp_config_err;
1525 }
1526
1527 /* Initialize the libfc library */
1528 rc = bnx2fc_libfc_config(lport);
1529 if (rc) {
1530 printk(KERN_ERR PFX "Couldnt configure libfc\n");
1531 goto shost_err;
1532 }
1533 fc_host_port_type(lport->host) = FC_PORTTYPE_UNKNOWN;
1534
10755d3f
JC		 1535 if (bnx2fc_devloss_tmo)
1536 fc_host_dev_loss_tmo(shost) = bnx2fc_devloss_tmo;
1537
853e2bd2 1538 /* Allocate exchange manager */
134a4e27 1539 if (!npiv)
0eb43b4b 1540 rc = bnx2fc_em_config(lport, hba);
134a4e27
VD		 1541 else {
1542 shost = vport_to_shost(vport);
1543 n_port = shost_priv(shost);
1544 rc = fc_exch_mgr_list_clone(n_port, lport);
1545 }
1546
1547 if (rc) {
1548 printk(KERN_ERR PFX "Error on bnx2fc_em_config\n");
1549 goto shost_err;
853e2bd2
BG		 1550 }
1551
aea71a02 1552 bnx2fc_interface_get(interface);
d36b3279
BPG		 1553
1554 spin_lock_bh(&hba->hba_lock);
1555 blport->lport = lport;
1556 list_add_tail(&blport->list, &hba->vports);
1557 spin_unlock_bh(&hba->hba_lock);
1558
853e2bd2
BG		 1559 return lport;
1560
1561shost_err:
1562 scsi_remove_host(shost);
1563lp_config_err:
1564 scsi_host_put(lport->host);
d36b3279
BPG		 1565free_blport:
1566 kfree(blport);
853e2bd2
BG		 1567 return NULL;
1568}
1569
013068fa 1570static void bnx2fc_net_cleanup(struct bnx2fc_interface *interface)
853e2bd2
BG		 1571{
1572 /* Dont listen for Ethernet packets anymore */
aea71a02
BPG		 1573 __dev_remove_pack(&interface->fcoe_packet_type);
1574 __dev_remove_pack(&interface->fip_packet_type);
853e2bd2
BG		 1575 synchronize_net();
1576}
1577
776cebca 1578static void bnx2fc_interface_cleanup(struct bnx2fc_interface *interface)
853e2bd2 1579{
fd8f8902
RL		 1580 struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface);
1581 struct fc_lport *lport = ctlr->lp;
853e2bd2 1582 struct fcoe_port *port = lport_priv(lport);
9be17fc4 1583 struct bnx2fc_hba *hba = interface->hba;
853e2bd2 1584
853e2bd2
BG		 1585 /* Stop the transmit retry timer */
1586 del_timer_sync(&port->timer);
1587
1588 /* Free existing transmit skbs */
1589 fcoe_clean_pending_queue(lport);
1590
013068fa 1591 bnx2fc_net_cleanup(interface);
9be17fc4 1592
abc49a93 1593 bnx2fc_free_vport(hba, lport);
9be17fc4
BPG		 1594}
1595
1596static void bnx2fc_if_destroy(struct fc_lport *lport)
1597{
1598
853e2bd2
BG		 1599 /* Free queued packets for the receive thread */
1600 bnx2fc_clean_rx_queue(lport);
1601
1602 /* Detach from scsi-ml */
1603 fc_remove_host(lport->host);
1604 scsi_remove_host(lport->host);
1605
1606 /*
1607 * Note that only the physical lport will have the exchange manager.
1608 * for vports, this function is NOP
1609 */
1610 fc_exch_mgr_free(lport);
1611
1612 /* Free memory used by statistical counters */
1613 fc_lport_free_stats(lport);
1614
1615 /* Release Scsi_Host */
1616 scsi_host_put(lport->host);
1617}
1618
eccdcd02 1619static void __bnx2fc_destroy(struct bnx2fc_interface *interface)
abc49a93 1620{
fd8f8902
RL		 1621 struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface);
1622 struct fc_lport *lport = ctlr->lp;
0cbf32e1 1623 struct fcoe_port *port = lport_priv(lport);
abc49a93
BPG		 1624
1625 bnx2fc_interface_cleanup(interface);
1626 bnx2fc_stop(interface);
abc49a93 1627 list_del(&interface->list);
abc49a93 1628 bnx2fc_interface_put(interface);
0cbf32e1 1629 queue_work(bnx2fc_wq, &port->destroy_work);
abc49a93
BPG		 1630}
1631
853e2bd2
BG		 1632/**
1633 * bnx2fc_destroy - Destroy a bnx2fc FCoE interface
1634 *
1635 * @buffer: The name of the Ethernet interface to be destroyed
1636 * @kp: The associated kernel parameter
1637 *
1638 * Called from sysfs.
1639 *
1640 * Returns: 0 for success
1641 */
1642static int bnx2fc_destroy(struct net_device *netdev)
1643{
aea71a02 1644 struct bnx2fc_interface *interface = NULL;
2a7b29c5 1645 struct workqueue_struct *timer_work_queue;
fd8f8902 1646 struct fcoe_ctlr *ctlr;
853e2bd2
BG		 1647 int rc = 0;
1648
6702ca1d 1649 rtnl_lock();
853e2bd2 1650 mutex_lock(&bnx2fc_dev_lock);
853e2bd2 1651
aea71a02 1652 interface = bnx2fc_interface_lookup(netdev);
fd8f8902
RL		 1653 ctlr = bnx2fc_to_ctlr(interface);
1654 if (!interface || !ctlr->lp) {
853e2bd2 1655 rc = -ENODEV;
aea71a02 1656 printk(KERN_ERR PFX "bnx2fc_destroy: interface or lport not found\n");
853e2bd2
BG		 1657 goto netdev_err;
1658 }
1659
2a7b29c5 1660 timer_work_queue = interface->timer_work_queue;
eccdcd02 1661 __bnx2fc_destroy(interface);
2a7b29c5 1662 destroy_workqueue(timer_work_queue);
853e2bd2 1663
853e2bd2
BG		 1664netdev_err:
1665 mutex_unlock(&bnx2fc_dev_lock);
1666 rtnl_unlock();
1667 return rc;
1668}
1669
1670static void bnx2fc_destroy_work(struct work_struct *work)
1671{
1672 struct fcoe_port *port;
1673 struct fc_lport *lport;
1674
1675 port = container_of(work, struct fcoe_port, destroy_work);
1676 lport = port->lport;
1677
1678 BNX2FC_HBA_DBG(lport, "Entered bnx2fc_destroy_work\n");
1679
9be17fc4 1680 bnx2fc_if_destroy(lport);
853e2bd2
BG		 1681}
1682
1683static void bnx2fc_unbind_adapter_devices(struct bnx2fc_hba *hba)
1684{
1685 bnx2fc_free_fw_resc(hba);
1686 bnx2fc_free_task_ctx(hba);
1687}
1688
1689/**
1690 * bnx2fc_bind_adapter_devices - binds bnx2fc adapter with the associated
1691 * pci structure
1692 *
1693 * @hba: Adapter instance
1694 */
1695static int bnx2fc_bind_adapter_devices(struct bnx2fc_hba *hba)
1696{
1697 if (bnx2fc_setup_task_ctx(hba))
1698 goto mem_err;
1699
1700 if (bnx2fc_setup_fw_resc(hba))
1701 goto mem_err;
1702
1703 return 0;
1704mem_err:
1705 bnx2fc_unbind_adapter_devices(hba);
1706 return -ENOMEM;
1707}
1708
1709static int bnx2fc_bind_pcidev(struct bnx2fc_hba *hba)
1710{
1711 struct cnic_dev *cnic;
c13d2b6d 1712 struct pci_dev *pdev;
853e2bd2
BG		 1713
1714 if (!hba->cnic) {
1715 printk(KERN_ERR PFX "cnic is NULL\n");
1716 return -ENODEV;
1717 }
1718 cnic = hba->cnic;
c13d2b6d
BPG		 1719 pdev = hba->pcidev = cnic->pcidev;
1720 if (!hba->pcidev)
1721 return -ENODEV;
853e2bd2 1722
c13d2b6d
BPG		 1723 switch (pdev->device) {
1724 case PCI_DEVICE_ID_NX2_57710:
1725 strncpy(hba->chip_num, "BCM57710", BCM_CHIP_LEN);
1726 break;
1727 case PCI_DEVICE_ID_NX2_57711:
1728 strncpy(hba->chip_num, "BCM57711", BCM_CHIP_LEN);
1729 break;
1730 case PCI_DEVICE_ID_NX2_57712:
1731 case PCI_DEVICE_ID_NX2_57712_MF:
1732 case PCI_DEVICE_ID_NX2_57712_VF:
1733 strncpy(hba->chip_num, "BCM57712", BCM_CHIP_LEN);
1734 break;
1735 case PCI_DEVICE_ID_NX2_57800:
1736 case PCI_DEVICE_ID_NX2_57800_MF:
1737 case PCI_DEVICE_ID_NX2_57800_VF:
1738 strncpy(hba->chip_num, "BCM57800", BCM_CHIP_LEN);
1739 break;
1740 case PCI_DEVICE_ID_NX2_57810:
1741 case PCI_DEVICE_ID_NX2_57810_MF:
1742 case PCI_DEVICE_ID_NX2_57810_VF:
1743 strncpy(hba->chip_num, "BCM57810", BCM_CHIP_LEN);
1744 break;
1745 case PCI_DEVICE_ID_NX2_57840:
1746 case PCI_DEVICE_ID_NX2_57840_MF:
1747 case PCI_DEVICE_ID_NX2_57840_VF:
1748 case PCI_DEVICE_ID_NX2_57840_2_20:
1749 case PCI_DEVICE_ID_NX2_57840_4_10:
1750 strncpy(hba->chip_num, "BCM57840", BCM_CHIP_LEN);
1751 break;
1752 default:
1753 pr_err(PFX "Unknown device id 0x%x\n", pdev->device);
1754 break;
1755 }
1756 pci_dev_get(hba->pcidev);
853e2bd2
BG		 1757 return 0;
1758}
1759
1760static void bnx2fc_unbind_pcidev(struct bnx2fc_hba *hba)
1761{
c13d2b6d
BPG		 1762 if (hba->pcidev) {
1763 hba->chip_num[0] = '\0';
853e2bd2 1764 pci_dev_put(hba->pcidev);
c13d2b6d 1765 }
853e2bd2
BG		 1766 hba->pcidev = NULL;
1767}
1768
2e499d3c
BW		 1769/**
1770 * bnx2fc_ulp_get_stats - cnic callback to populate FCoE stats
1771 *
1772 * @handle: transport handle pointing to adapter struture
1773 */
1774static int bnx2fc_ulp_get_stats(void *handle)
1775{
1776 struct bnx2fc_hba *hba = handle;
1777 struct cnic_dev *cnic;
1778 struct fcoe_stats_info *stats_addr;
1779
1780 if (!hba)
1781 return -EINVAL;
1782
1783 cnic = hba->cnic;
1784 stats_addr = &cnic->stats_addr->fcoe_stat;
1785 if (!stats_addr)
1786 return -EINVAL;
1787
1788 strncpy(stats_addr->version, BNX2FC_VERSION,
1789 sizeof(stats_addr->version));
1790 stats_addr->txq_size = BNX2FC_SQ_WQES_MAX;
1791 stats_addr->rxq_size = BNX2FC_CQ_WQES_MAX;
1792
1793 return 0;
1794}
853e2bd2
BG		 1795
1796
1797/**
1798 * bnx2fc_ulp_start - cnic callback to initialize & start adapter instance
1799 *
59e13d48 1800 * @handle: transport handle pointing to adapter structure
853e2bd2
BG		 1801 *
1802 * This function maps adapter structure to pcidev structure and initiates
1803 * firmware handshake to enable/initialize on-chip FCoE components.
1804 * This bnx2fc - cnic interface api callback is used after following
1805 * conditions are met -
1806 * a) underlying network interface is up (marked by event NETDEV_UP
1807 * from netdev
1808 * b) bnx2fc adatper structure is registered.
1809 */
1810static void bnx2fc_ulp_start(void *handle)
1811{
1812 struct bnx2fc_hba *hba = handle;
aea71a02 1813 struct bnx2fc_interface *interface;
fd8f8902 1814 struct fcoe_ctlr *ctlr;
aea71a02 1815 struct fc_lport *lport;
853e2bd2 1816
853e2bd2
BG		 1817 mutex_lock(&bnx2fc_dev_lock);
1818
aea71a02 1819 if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags))
853e2bd2
BG		 1820 bnx2fc_fw_init(hba);
1821
853e2bd2
BG		 1822 BNX2FC_MISC_DBG("bnx2fc started.\n");
1823
aea71a02
BPG		 1824 list_for_each_entry(interface, &if_list, list) {
1825 if (interface->hba == hba) {
fd8f8902
RL		 1826 ctlr = bnx2fc_to_ctlr(interface);
1827 lport = ctlr->lp;
aea71a02
BPG		 1828 /* Kick off Fabric discovery*/
1829 printk(KERN_ERR PFX "ulp_init: start discovery\n");
1830 lport->tt.frame_send = bnx2fc_xmit;
1831 bnx2fc_start_disc(interface);
1832 }
853e2bd2 1833 }
aea71a02
BPG		 1834
1835 mutex_unlock(&bnx2fc_dev_lock);
853e2bd2
BG		 1836}
1837
1838static void bnx2fc_port_shutdown(struct fc_lport *lport)
1839{
1840 BNX2FC_MISC_DBG("Entered %s\n", __func__);
1841 fc_fabric_logoff(lport);
1842 fc_lport_destroy(lport);
1843}
1844
aea71a02 1845static void bnx2fc_stop(struct bnx2fc_interface *interface)
853e2bd2 1846{
fd8f8902 1847 struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface);
853e2bd2
BG		 1848 struct fc_lport *lport;
1849 struct fc_lport *vport;
1850
aea71a02
BPG		 1851 if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &interface->hba->flags))
1852 return;
853e2bd2 1853
fd8f8902 1854 lport = ctlr->lp;
aea71a02
BPG		 1855 bnx2fc_port_shutdown(lport);
1856
1857 mutex_lock(&lport->lp_mutex);
1858 list_for_each_entry(vport, &lport->vports, list)
1859 fc_host_port_type(vport->host) =
1860 FC_PORTTYPE_UNKNOWN;
1861 mutex_unlock(&lport->lp_mutex);
1862 fc_host_port_type(lport->host) = FC_PORTTYPE_UNKNOWN;
fd8f8902 1863 fcoe_ctlr_link_down(ctlr);
aea71a02 1864 fcoe_clean_pending_queue(lport);
853e2bd2
BG		 1865}
1866
1867static int bnx2fc_fw_init(struct bnx2fc_hba *hba)
1868{
1869#define BNX2FC_INIT_POLL_TIME (1000 / HZ)
1870 int rc = -1;
1871 int i = HZ;
1872
1873 rc = bnx2fc_bind_adapter_devices(hba);
1874 if (rc) {
1875 printk(KERN_ALERT PFX
1876 "bnx2fc_bind_adapter_devices failed - rc = %d\n", rc);
1877 goto err_out;
1878 }
1879
1880 rc = bnx2fc_send_fw_fcoe_init_msg(hba);
1881 if (rc) {
1882 printk(KERN_ALERT PFX
1883 "bnx2fc_send_fw_fcoe_init_msg failed - rc = %d\n", rc);
1884 goto err_unbind;
1885 }
1886
1887 /*
1888 * Wait until the adapter init message is complete, and adapter
1889 * state is UP.
1890 */
1891 while (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state) && i--)
1892 msleep(BNX2FC_INIT_POLL_TIME);
1893
1894 if (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state)) {
1895 printk(KERN_ERR PFX "bnx2fc_start: %s failed to initialize. "
1896 "Ignoring...\n",
1897 hba->cnic->netdev->name);
1898 rc = -1;
1899 goto err_unbind;
1900 }
1901
1902
aea71a02 1903 set_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags);
853e2bd2
BG		 1904 return 0;
1905
1906err_unbind:
1907 bnx2fc_unbind_adapter_devices(hba);
1908err_out:
1909 return rc;
1910}
1911
1912static void bnx2fc_fw_destroy(struct bnx2fc_hba *hba)
1913{
aea71a02 1914 if (test_and_clear_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags)) {
853e2bd2
BG		 1915 if (bnx2fc_send_fw_fcoe_destroy_msg(hba) == 0) {
1916 init_timer(&hba->destroy_timer);
1917 hba->destroy_timer.expires = BNX2FC_FW_TIMEOUT +
1918 jiffies;
1919 hba->destroy_timer.function = bnx2fc_destroy_timer;
1920 hba->destroy_timer.data = (unsigned long)hba;
1921 add_timer(&hba->destroy_timer);
1922 wait_event_interruptible(hba->destroy_wait,
aea71a02
BPG		 1923 test_bit(BNX2FC_FLAG_DESTROY_CMPL,
1924 &hba->flags));
cd703ae7 1925 clear_bit(BNX2FC_FLAG_DESTROY_CMPL, &hba->flags);
853e2bd2
BG		 1926 /* This should never happen */
1927 if (signal_pending(current))
1928 flush_signals(current);
1929
1930 del_timer_sync(&hba->destroy_timer);
1931 }
1932 bnx2fc_unbind_adapter_devices(hba);
1933 }
1934}
1935
1936/**
1937 * bnx2fc_ulp_stop - cnic callback to shutdown adapter instance
1938 *
1939 * @handle: transport handle pointing to adapter structure
1940 *
1941 * Driver checks if adapter is already in shutdown mode, if not start
1942 * the shutdown process.
1943 */
1944static void bnx2fc_ulp_stop(void *handle)
1945{
aea71a02
BPG		 1946 struct bnx2fc_hba *hba = handle;
1947 struct bnx2fc_interface *interface;
853e2bd2
BG		 1948
1949 printk(KERN_ERR "ULP_STOP\n");
1950
1951 mutex_lock(&bnx2fc_dev_lock);
aea71a02
BPG		 1952 if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags))
1953 goto exit;
1954 list_for_each_entry(interface, &if_list, list) {
1955 if (interface->hba == hba)
1956 bnx2fc_stop(interface);
1957 }
1958 BUG_ON(hba->num_ofld_sess != 0);
1959
1960 mutex_lock(&hba->hba_mutex);
1961 clear_bit(ADAPTER_STATE_UP, &hba->adapter_state);
1962 clear_bit(ADAPTER_STATE_GOING_DOWN,
1963 &hba->adapter_state);
1964
1965 clear_bit(ADAPTER_STATE_READY, &hba->adapter_state);
1966 mutex_unlock(&hba->hba_mutex);
1967
853e2bd2 1968 bnx2fc_fw_destroy(hba);
aea71a02 1969exit:
853e2bd2
BG		 1970 mutex_unlock(&bnx2fc_dev_lock);
1971}
1972
aea71a02 1973static void bnx2fc_start_disc(struct bnx2fc_interface *interface)
853e2bd2 1974{
fd8f8902 1975 struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface);
853e2bd2
BG		 1976 struct fc_lport *lport;
1977 int wait_cnt = 0;
1978
1979 BNX2FC_MISC_DBG("Entered %s\n", __func__);
1980 /* Kick off FIP/FLOGI */
aea71a02 1981 if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &interface->hba->flags)) {
853e2bd2
BG		 1982 printk(KERN_ERR PFX "Init not done yet\n");
1983 return;
1984 }
1985
fd8f8902 1986 lport = ctlr->lp;
853e2bd2
BG		 1987 BNX2FC_HBA_DBG(lport, "calling fc_fabric_login\n");
1988
8a5badf1 1989 if (!bnx2fc_link_ok(lport) && interface->enabled) {
853e2bd2 1990 BNX2FC_HBA_DBG(lport, "ctlr_link_up\n");
fd8f8902 1991 fcoe_ctlr_link_up(ctlr);
853e2bd2 1992 fc_host_port_type(lport->host) = FC_PORTTYPE_NPORT;
aea71a02 1993 set_bit(ADAPTER_STATE_READY, &interface->hba->adapter_state);
853e2bd2
BG		 1994 }
1995
1996 /* wait for the FCF to be selected before issuing FLOGI */
fd8f8902 1997 while (!ctlr->sel_fcf) {
853e2bd2
BG		 1998 msleep(250);
1999 /* give up after 3 secs */
2000 if (++wait_cnt > 12)
2001 break;
2002 }
627e628f
BPG		 2003
2004 /* Reset max receive frame size to default */
2005 if (fc_set_mfs(lport, BNX2FC_MFS))
2006 return;
2007
853e2bd2
BG		 2008 fc_lport_init(lport);
2009 fc_fabric_login(lport);
2010}
2011
2012
2013/**
2014 * bnx2fc_ulp_init - Initialize an adapter instance
2015 *
2016 * @dev : cnic device handle
2017 * Called from cnic_register_driver() context to initialize all
2018 * enumerated cnic devices. This routine allocates adapter structure
2019 * and other device specific resources.
2020 */
2021static void bnx2fc_ulp_init(struct cnic_dev *dev)
2022{
2023 struct bnx2fc_hba *hba;
2024 int rc = 0;
2025
2026 BNX2FC_MISC_DBG("Entered %s\n", __func__);
2027 /* bnx2fc works only when bnx2x is loaded */
aea71a02
BPG		 2028 if (!test_bit(CNIC_F_BNX2X_CLASS, &dev->flags) ||
2029 (dev->max_fcoe_conn == 0)) {
853e2bd2 2030 printk(KERN_ERR PFX "bnx2fc FCoE not supported on %s,"
aea71a02
BPG		 2031 " flags: %lx fcoe_conn: %d\n",
2032 dev->netdev->name, dev->flags, dev->max_fcoe_conn);
853e2bd2
BG		 2033 return;
2034 }
2035
aea71a02 2036 hba = bnx2fc_hba_create(dev);
853e2bd2
BG		 2037 if (!hba) {
2038 printk(KERN_ERR PFX "hba initialization failed\n");
2039 return;
2040 }
2041
f72464d1
CD		 2042 pr_info(PFX "FCoE initialized for %s.\n", dev->netdev->name);
2043
853e2bd2
BG		 2044 /* Add HBA to the adapter list */
2045 mutex_lock(&bnx2fc_dev_lock);
aea71a02 2046 list_add_tail(&hba->list, &adapter_list);
853e2bd2
BG		 2047 adapter_count++;
2048 mutex_unlock(&bnx2fc_dev_lock);
2049
2e499d3c 2050 dev->fcoe_cap = &hba->fcoe_cap;
853e2bd2
BG		 2051 clear_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic);
2052 rc = dev->register_device(dev, CNIC_ULP_FCOE,
2053 (void *) hba);
2054 if (rc)
b2a554ff 2055 printk(KERN_ERR PFX "register_device failed, rc = %d\n", rc);
853e2bd2
BG		 2056 else
2057 set_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic);
2058}
2059
0680810c
EW		 2060/* Assumes rtnl_lock and the bnx2fc_dev_lock are already taken */
2061static int __bnx2fc_disable(struct fcoe_ctlr *ctlr)
2062{
2063 struct bnx2fc_interface *interface = fcoe_ctlr_priv(ctlr);
2064
2065 if (interface->enabled == true) {
2066 if (!ctlr->lp) {
2067 pr_err(PFX "__bnx2fc_disable: lport not found\n");
2068 return -ENODEV;
2069 } else {
2070 interface->enabled = false;
2071 fcoe_ctlr_link_down(ctlr);
2072 fcoe_clean_pending_queue(ctlr->lp);
2073 }
2074 }
2075 return 0;
2076}
2077
6e89ea3f
RL		 2078/**
2079 * Deperecated: Use bnx2fc_enabled()
2080 */
853e2bd2
BG		 2081static int bnx2fc_disable(struct net_device *netdev)
2082{
aea71a02 2083 struct bnx2fc_interface *interface;
fd8f8902 2084 struct fcoe_ctlr *ctlr;
853e2bd2
BG		 2085 int rc = 0;
2086
6702ca1d 2087 rtnl_lock();
853e2bd2
BG		 2088 mutex_lock(&bnx2fc_dev_lock);
2089
aea71a02 2090 interface = bnx2fc_interface_lookup(netdev);
fd8f8902 2091 ctlr = bnx2fc_to_ctlr(interface);
0680810c
EW		 2092
2093 if (!interface) {
853e2bd2 2094 rc = -ENODEV;
0680810c 2095 pr_err(PFX "bnx2fc_disable: interface not found\n");
853e2bd2 2096 } else {
0680810c 2097 rc = __bnx2fc_disable(ctlr);
853e2bd2 2098 }
853e2bd2
BG		 2099 mutex_unlock(&bnx2fc_dev_lock);
2100 rtnl_unlock();
2101 return rc;
2102}
2103
2971ff67
JC		 2104static uint bnx2fc_npiv_create_vports(struct fc_lport *lport,
2105 struct cnic_fc_npiv_tbl *npiv_tbl)
2106{
2107 struct fc_vport_identifiers vpid;
2108 uint i, created = 0;
2109
2110 if (npiv_tbl->count > MAX_NPIV_ENTRIES) {
2111 BNX2FC_HBA_DBG(lport, "Exceeded count max of npiv table\n");
2112 goto done;
2113 }
2114
2115 /* Sanity check the first entry to make sure it's not 0 */
2116 if (wwn_to_u64(npiv_tbl->wwnn[0]) == 0 &&
2117 wwn_to_u64(npiv_tbl->wwpn[0]) == 0) {
2118 BNX2FC_HBA_DBG(lport, "First NPIV table entries invalid.\n");
2119 goto done;
2120 }
2121
2122 vpid.roles = FC_PORT_ROLE_FCP_INITIATOR;
2123 vpid.vport_type = FC_PORTTYPE_NPIV;
2124 vpid.disable = false;
2125
2126 for (i = 0; i < npiv_tbl->count; i++) {
2127 vpid.node_name = wwn_to_u64(npiv_tbl->wwnn[i]);
2128 vpid.port_name = wwn_to_u64(npiv_tbl->wwpn[i]);
2129 scnprintf(vpid.symbolic_name, sizeof(vpid.symbolic_name),
2130 "NPIV[%u]:%016llx-%016llx",
2131 created, vpid.port_name, vpid.node_name);
2132 if (fc_vport_create(lport->host, 0, &vpid))
2133 created++;
2134 else
2135 BNX2FC_HBA_DBG(lport, "Failed to create vport\n");
2136 }
2137done:
2138 return created;
2139}
2140
0680810c
EW		 2141static int __bnx2fc_enable(struct fcoe_ctlr *ctlr)
2142{
2143 struct bnx2fc_interface *interface = fcoe_ctlr_priv(ctlr);
2971ff67 2144 struct bnx2fc_hba *hba;
720ba808 2145 struct cnic_fc_npiv_tbl *npiv_tbl;
2971ff67 2146 struct fc_lport *lport;
0680810c
EW		 2147
2148 if (interface->enabled == false) {
2149 if (!ctlr->lp) {
2150 pr_err(PFX "__bnx2fc_enable: lport not found\n");
2151 return -ENODEV;
2152 } else if (!bnx2fc_link_ok(ctlr->lp)) {
2153 fcoe_ctlr_link_up(ctlr);
2154 interface->enabled = true;
2155 }
2156 }
2971ff67
JC		 2157
2158 /* Create static NPIV ports if any are contained in NVRAM */
2159 hba = interface->hba;
2160 lport = ctlr->lp;
2161
2162 if (!hba)
2163 goto done;
2164
2165 if (!hba->cnic)
2166 goto done;
2167
2168 if (!lport)
2169 goto done;
2170
2171 if (!lport->host)
2172 goto done;
2173
2174 if (!hba->cnic->get_fc_npiv_tbl)
2175 goto done;
2176
720ba808
AB		 2177 npiv_tbl = kzalloc(sizeof(struct cnic_fc_npiv_tbl), GFP_KERNEL);
2178 if (!npiv_tbl)
2971ff67
JC		 2179 goto done;
2180
720ba808
AB		 2181 if (hba->cnic->get_fc_npiv_tbl(hba->cnic, npiv_tbl))
2182 goto done_free;
2183
2184 bnx2fc_npiv_create_vports(lport, npiv_tbl);
2185done_free:
2186 kfree(npiv_tbl);
2971ff67 2187done:
0680810c
EW		 2188 return 0;
2189}
2190
6e89ea3f
RL		 2191/**
2192 * Deprecated: Use bnx2fc_enabled()
2193 */
853e2bd2
BG		 2194static int bnx2fc_enable(struct net_device *netdev)
2195{
aea71a02 2196 struct bnx2fc_interface *interface;
fd8f8902 2197 struct fcoe_ctlr *ctlr;
853e2bd2
BG		 2198 int rc = 0;
2199
6702ca1d 2200 rtnl_lock();
853e2bd2
BG		 2201 mutex_lock(&bnx2fc_dev_lock);
2202
aea71a02 2203 interface = bnx2fc_interface_lookup(netdev);
fd8f8902 2204 ctlr = bnx2fc_to_ctlr(interface);
0680810c 2205 if (!interface) {
853e2bd2 2206 rc = -ENODEV;
0680810c
EW		 2207 pr_err(PFX "bnx2fc_enable: interface not found\n");
2208 } else {
2209 rc = __bnx2fc_enable(ctlr);
8a5badf1 2210 }
853e2bd2 2211
853e2bd2
BG		 2212 mutex_unlock(&bnx2fc_dev_lock);
2213 rtnl_unlock();
2214 return rc;
2215}
2216
2217/**
6e89ea3f
RL		 2218 * bnx2fc_ctlr_enabled() - Enable or disable an FCoE Controller
2219 * @cdev: The FCoE Controller that is being enabled or disabled
853e2bd2 2220 *
6e89ea3f
RL		 2221 * fcoe_sysfs will ensure that the state of 'enabled' has
2222 * changed, so no checking is necessary here. This routine simply
2223 * calls fcoe_enable or fcoe_disable, both of which are deprecated.
2224 * When those routines are removed the functionality can be merged
2225 * here.
2226 */
2227static int bnx2fc_ctlr_enabled(struct fcoe_ctlr_device *cdev)
2228{
2229 struct fcoe_ctlr *ctlr = fcoe_ctlr_device_priv(cdev);
6e89ea3f
RL		 2230
2231 switch (cdev->enabled) {
2232 case FCOE_CTLR_ENABLED:
0680810c 2233 return __bnx2fc_enable(ctlr);
6e89ea3f 2234 case FCOE_CTLR_DISABLED:
0680810c 2235 return __bnx2fc_disable(ctlr);
6e89ea3f
RL		 2236 case FCOE_CTLR_UNUSED:
2237 default:
2238 return -ENOTSUPP;
2239 };
2240}
2241
2242enum bnx2fc_create_link_state {
2243 BNX2FC_CREATE_LINK_DOWN,
2244 BNX2FC_CREATE_LINK_UP,
2245};
2246
2247/**
2248 * _bnx2fc_create() - Create bnx2fc FCoE interface
2249 * @netdev : The net_device object the Ethernet interface to create on
2250 * @fip_mode: The FIP mode for this creation
2251 * @link_state: The ctlr link state on creation
853e2bd2 2252 *
6e89ea3f
RL		 2253 * Called from either the libfcoe 'create' module parameter
2254 * via fcoe_create or from fcoe_syfs's ctlr_create file.
853e2bd2 2255 *
6e89ea3f
RL		 2256 * libfcoe's 'create' module parameter is deprecated so some
2257 * consolidation of code can be done when that interface is
2258 * removed.
853e2bd2
BG		 2259 *
2260 * Returns: 0 for success
2261 */
6e89ea3f
RL		 2262static int _bnx2fc_create(struct net_device *netdev,
2263 enum fip_state fip_mode,
2264 enum bnx2fc_create_link_state link_state)
853e2bd2 2265{
6e89ea3f 2266 struct fcoe_ctlr_device *cdev;
fd8f8902 2267 struct fcoe_ctlr *ctlr;
aea71a02 2268 struct bnx2fc_interface *interface;
853e2bd2 2269 struct bnx2fc_hba *hba;
7adc5a37 2270 struct net_device *phys_dev = netdev;
853e2bd2
BG		 2271 struct fc_lport *lport;
2272 struct ethtool_drvinfo drvinfo;
2273 int rc = 0;
7adc5a37 2274 int vlan_id = 0;
853e2bd2
BG		 2275
2276 BNX2FC_MISC_DBG("Entered bnx2fc_create\n");
2277 if (fip_mode != FIP_MODE_FABRIC) {
2278 printk(KERN_ERR "fip mode not FABRIC\n");
2279 return -EIO;
2280 }
2281
6702ca1d
NS		 2282 rtnl_lock();
2283
853e2bd2
BG		 2284 mutex_lock(&bnx2fc_dev_lock);
2285
853e2bd2
BG		 2286 if (!try_module_get(THIS_MODULE)) {
2287 rc = -EINVAL;
2288 goto mod_err;
2289 }
2290
2291 /* obtain physical netdev */
7adc5a37 2292 if (netdev->priv_flags & IFF_802_1Q_VLAN)
853e2bd2 2293 phys_dev = vlan_dev_real_dev(netdev);
7adc5a37 2294
853e2bd2
BG		 2295 /* verify if the physical device is a netxtreme2 device */
2296 if (phys_dev->ethtool_ops && phys_dev->ethtool_ops->get_drvinfo) {
2297 memset(&drvinfo, 0, sizeof(drvinfo));
2298 phys_dev->ethtool_ops->get_drvinfo(phys_dev, &drvinfo);
aea71a02 2299 if (strncmp(drvinfo.driver, "bnx2x", strlen("bnx2x"))) {
853e2bd2
BG		 2300 printk(KERN_ERR PFX "Not a netxtreme2 device\n");
2301 rc = -EINVAL;
2302 goto netdev_err;
2303 }
2304 } else {
2305 printk(KERN_ERR PFX "unable to obtain drv_info\n");
2306 rc = -EINVAL;
2307 goto netdev_err;
2308 }
2309
aea71a02 2310 /* obtain interface and initialize rest of the structure */
853e2bd2
BG		 2311 hba = bnx2fc_hba_lookup(phys_dev);
2312 if (!hba) {
2313 rc = -ENODEV;
2314 printk(KERN_ERR PFX "bnx2fc_create: hba not found\n");
2315 goto netdev_err;
2316 }
2317
aea71a02 2318 if (bnx2fc_interface_lookup(netdev)) {
853e2bd2
BG		 2319 rc = -EEXIST;
2320 goto netdev_err;
2321 }
2322
aea71a02
BPG		 2323 interface = bnx2fc_interface_create(hba, netdev, fip_mode);
2324 if (!interface) {
2325 printk(KERN_ERR PFX "bnx2fc_interface_create failed\n");
2043e1fd 2326 rc = -ENOMEM;
853e2bd2
BG		 2327 goto ifput_err;
2328 }
2329
7adc5a37
BPG		 2330 if (netdev->priv_flags & IFF_802_1Q_VLAN) {
2331 vlan_id = vlan_dev_vlan_id(netdev);
2332 interface->vlan_enabled = 1;
2333 }
2334
fd8f8902 2335 ctlr = bnx2fc_to_ctlr(interface);
01bdcb62 2336 cdev = fcoe_ctlr_to_ctlr_dev(ctlr);
aea71a02 2337 interface->vlan_id = vlan_id;
10755d3f 2338 interface->tm_timeout = BNX2FC_TM_TIMEOUT;
aea71a02
BPG		 2339
2340 interface->timer_work_queue =
853e2bd2 2341 create_singlethread_workqueue("bnx2fc_timer_wq");
aea71a02 2342 if (!interface->timer_work_queue) {
853e2bd2
BG		 2343 printk(KERN_ERR PFX "ulp_init could not create timer_wq\n");
2344 rc = -EINVAL;
2345 goto ifput_err;
2346 }
2347
01bdcb62 2348 lport = bnx2fc_if_create(interface, &cdev->dev, 0);
853e2bd2
BG		 2349 if (!lport) {
2350 printk(KERN_ERR PFX "Failed to create interface (%s)\n",
2351 netdev->name);
853e2bd2
BG		 2352 rc = -EINVAL;
2353 goto if_create_err;
2354 }
2355
aea71a02
BPG		 2356 /* Add interface to if_list */
2357 list_add_tail(&interface->list, &if_list);
2358
853e2bd2
BG		 2359 lport->boot_time = jiffies;
2360
2361 /* Make this master N_port */
fd8f8902 2362 ctlr->lp = lport;
853e2bd2 2363
6e89ea3f
RL		 2364 if (link_state == BNX2FC_CREATE_LINK_UP)
2365 cdev->enabled = FCOE_CTLR_ENABLED;
2366 else
2367 cdev->enabled = FCOE_CTLR_DISABLED;
2368
2369 if (link_state == BNX2FC_CREATE_LINK_UP &&
2370 !bnx2fc_link_ok(lport)) {
fd8f8902 2371 fcoe_ctlr_link_up(ctlr);
8a5badf1
BPG		 2372 fc_host_port_type(lport->host) = FC_PORTTYPE_NPORT;
2373 set_bit(ADAPTER_STATE_READY, &interface->hba->adapter_state);
2374 }
2375
aea71a02
BPG		 2376 BNX2FC_HBA_DBG(lport, "create: START DISC\n");
2377 bnx2fc_start_disc(interface);
6e89ea3f
RL		 2378
2379 if (link_state == BNX2FC_CREATE_LINK_UP)
2380 interface->enabled = true;
2381
853e2bd2
BG		 2382 /*
2383 * Release from kref_init in bnx2fc_interface_setup, on success
2384 * lport should be holding a reference taken in bnx2fc_if_create
2385 */
aea71a02 2386 bnx2fc_interface_put(interface);
853e2bd2
BG		 2387 /* put netdev that was held while calling dev_get_by_name */
2388 mutex_unlock(&bnx2fc_dev_lock);
2389 rtnl_unlock();
2390 return 0;
2391
2392if_create_err:
aea71a02 2393 destroy_workqueue(interface->timer_work_queue);
853e2bd2 2394ifput_err:
013068fa 2395 bnx2fc_net_cleanup(interface);
aea71a02 2396 bnx2fc_interface_put(interface);
7d742f65 2397 goto mod_err;
853e2bd2
BG		 2398netdev_err:
2399 module_put(THIS_MODULE);
2400mod_err:
2401 mutex_unlock(&bnx2fc_dev_lock);
2402 rtnl_unlock();
2403 return rc;
2404}
2405
6e89ea3f
RL		 2406/**
2407 * bnx2fc_create() - Create a bnx2fc interface
2408 * @netdev : The net_device object the Ethernet interface to create on
2409 * @fip_mode: The FIP mode for this creation
2410 *
2411 * Called from fcoe transport
2412 *
2413 * Returns: 0 for success
2414 */
2415static int bnx2fc_create(struct net_device *netdev, enum fip_state fip_mode)
2416{
2417 return _bnx2fc_create(netdev, fip_mode, BNX2FC_CREATE_LINK_UP);
2418}
2419
2420/**
2421 * bnx2fc_ctlr_alloc() - Allocate a bnx2fc interface from fcoe_sysfs
2422 * @netdev: The net_device to be used by the allocated FCoE Controller
2423 *
2424 * This routine is called from fcoe_sysfs. It will start the fcoe_ctlr
2425 * in a link_down state. The allows the user an opportunity to configure
2426 * the FCoE Controller from sysfs before enabling the FCoE Controller.
2427 *
2428 * Creating in with this routine starts the FCoE Controller in Fabric
2429 * mode. The user can change to VN2VN or another mode before enabling.
2430 */
2431static int bnx2fc_ctlr_alloc(struct net_device *netdev)
2432{
2433 return _bnx2fc_create(netdev, FIP_MODE_FABRIC,
2434 BNX2FC_CREATE_LINK_DOWN);
2435}
2436
853e2bd2 2437/**
aea71a02 2438 * bnx2fc_find_hba_for_cnic - maps cnic instance to bnx2fc hba instance
853e2bd2
BG		 2439 *
2440 * @cnic: Pointer to cnic device instance
2441 *
2442 **/
2443static struct bnx2fc_hba *bnx2fc_find_hba_for_cnic(struct cnic_dev *cnic)
2444{
853e2bd2
BG		 2445 struct bnx2fc_hba *hba;
2446
2447 /* Called with bnx2fc_dev_lock held */
d71fb3bd 2448 list_for_each_entry(hba, &adapter_list, list) {
853e2bd2
BG		 2449 if (hba->cnic == cnic)
2450 return hba;
2451 }
2452 return NULL;
2453}
2454
aea71a02
BPG		 2455static struct bnx2fc_interface *bnx2fc_interface_lookup(struct net_device
2456 *netdev)
2457{
2458 struct bnx2fc_interface *interface;
2459
2460 /* Called with bnx2fc_dev_lock held */
2461 list_for_each_entry(interface, &if_list, list) {
2462 if (interface->netdev == netdev)
2463 return interface;
2464 }
2465 return NULL;
2466}
2467
2468static struct bnx2fc_hba *bnx2fc_hba_lookup(struct net_device
2469 *phys_dev)
853e2bd2 2470{
853e2bd2
BG		 2471 struct bnx2fc_hba *hba;
2472
2473 /* Called with bnx2fc_dev_lock held */
aea71a02 2474 list_for_each_entry(hba, &adapter_list, list) {
853e2bd2
BG		 2475 if (hba->phys_dev == phys_dev)
2476 return hba;
2477 }
aea71a02 2478 printk(KERN_ERR PFX "adapter_lookup: hba NULL\n");
853e2bd2
BG		 2479 return NULL;
2480}
2481
2482/**
2483 * bnx2fc_ulp_exit - shuts down adapter instance and frees all resources
2484 *
2485 * @dev cnic device handle
2486 */
2487static void bnx2fc_ulp_exit(struct cnic_dev *dev)
2488{
2489 struct bnx2fc_hba *hba;
aea71a02 2490 struct bnx2fc_interface *interface, *tmp;
853e2bd2
BG		 2491
2492 BNX2FC_MISC_DBG("Entered bnx2fc_ulp_exit\n");
2493
2494 if (!test_bit(CNIC_F_BNX2X_CLASS, &dev->flags)) {
2495 printk(KERN_ERR PFX "bnx2fc port check: %s, flags: %lx\n",
2496 dev->netdev->name, dev->flags);
2497 return;
2498 }
2499
2500 mutex_lock(&bnx2fc_dev_lock);
2501 hba = bnx2fc_find_hba_for_cnic(dev);
2502 if (!hba) {
2503 printk(KERN_ERR PFX "bnx2fc_ulp_exit: hba not found, dev 0%p\n",
2504 dev);
2505 mutex_unlock(&bnx2fc_dev_lock);
2506 return;
2507 }
2508
aea71a02 2509 list_del_init(&hba->list);
853e2bd2
BG		 2510 adapter_count--;
2511
abc49a93 2512 list_for_each_entry_safe(interface, tmp, &if_list, list)
853e2bd2 2513 /* destroy not called yet, move to quiesced list */
abc49a93 2514 if (interface->hba == hba)
eccdcd02 2515 __bnx2fc_destroy(interface);
853e2bd2
BG		 2516 mutex_unlock(&bnx2fc_dev_lock);
2517
06c4f20d
EW		 2518 /* Ensure ALL destroy work has been completed before return */
2519 flush_workqueue(bnx2fc_wq);
2520
853e2bd2
BG		 2521 bnx2fc_ulp_stop(hba);
2522 /* unregister cnic device */
2523 if (test_and_clear_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic))
2524 hba->cnic->unregister_device(hba->cnic, CNIC_ULP_FCOE);
aea71a02 2525 bnx2fc_hba_destroy(hba);
853e2bd2
BG		 2526}
2527
2528/**
2529 * bnx2fc_fcoe_reset - Resets the fcoe
2530 *
2531 * @shost: shost the reset is from
2532 *
2533 * Returns: always 0
2534 */
2535static int bnx2fc_fcoe_reset(struct Scsi_Host *shost)
2536{
2537 struct fc_lport *lport = shost_priv(shost);
2538 fc_lport_reset(lport);
2539 return 0;
2540}
2541
2542
2543static bool bnx2fc_match(struct net_device *netdev)
2544{
7adc5a37
BPG		 2545 struct net_device *phys_dev = netdev;
2546
853e2bd2 2547 mutex_lock(&bnx2fc_dev_lock);
7adc5a37
BPG		 2548 if (netdev->priv_flags & IFF_802_1Q_VLAN)
2549 phys_dev = vlan_dev_real_dev(netdev);
853e2bd2 2550
7adc5a37
BPG		 2551 if (bnx2fc_hba_lookup(phys_dev)) {
2552 mutex_unlock(&bnx2fc_dev_lock);
2553 return true;
853e2bd2 2554 }
7adc5a37 2555
853e2bd2
BG		 2556 mutex_unlock(&bnx2fc_dev_lock);
2557 return false;
2558}
2559
2560
2561static struct fcoe_transport bnx2fc_transport = {
2562 .name = {"bnx2fc"},
2563 .attached = false,
2564 .list = LIST_HEAD_INIT(bnx2fc_transport.list),
6e89ea3f 2565 .alloc = bnx2fc_ctlr_alloc,
853e2bd2
BG		 2566 .match = bnx2fc_match,
2567 .create = bnx2fc_create,
2568 .destroy = bnx2fc_destroy,
2569 .enable = bnx2fc_enable,
2570 .disable = bnx2fc_disable,
2571};
2572
2573/**
2574 * bnx2fc_percpu_thread_create - Create a receive thread for an
2575 * online CPU
2576 *
2577 * @cpu: cpu index for the online cpu
2578 */
2579static void bnx2fc_percpu_thread_create(unsigned int cpu)
2580{
2581 struct bnx2fc_percpu_s *p;
2582 struct task_struct *thread;
2583
2584 p = &per_cpu(bnx2fc_percpu, cpu);
2585
69614270
ED		 2586 thread = kthread_create_on_node(bnx2fc_percpu_io_thread,
2587 (void *)p, cpu_to_node(cpu),
2588 "bnx2fc_thread/%d", cpu);
853e2bd2 2589 /* bind thread to the cpu */
32248763 2590 if (likely(!IS_ERR(thread))) {
853e2bd2
BG		 2591 kthread_bind(thread, cpu);
2592 p->iothread = thread;
2593 wake_up_process(thread);
2594 }
2595}
2596
2597static void bnx2fc_percpu_thread_destroy(unsigned int cpu)
2598{
2599 struct bnx2fc_percpu_s *p;
2600 struct task_struct *thread;
2601 struct bnx2fc_work *work, *tmp;
853e2bd2
BG		 2602
2603 BNX2FC_MISC_DBG("destroying io thread for CPU %d\n", cpu);
2604
2605 /* Prevent any new work from being queued for this CPU */
2606 p = &per_cpu(bnx2fc_percpu, cpu);
2607 spin_lock_bh(&p->fp_work_lock);
2608 thread = p->iothread;
2609 p->iothread = NULL;
2610
2611
2612 /* Free all work in the list */
32248763 2613 list_for_each_entry_safe(work, tmp, &p->work_list, list) {
853e2bd2
BG		 2614 list_del_init(&work->list);
2615 bnx2fc_process_cq_compl(work->tgt, work->wqe);
2616 kfree(work);
2617 }
2618
2619 spin_unlock_bh(&p->fp_work_lock);
2620
2621 if (thread)
2622 kthread_stop(thread);
2623}
2624
2625/**
2626 * bnx2fc_cpu_callback - Handler for CPU hotplug events
2627 *
2628 * @nfb: The callback data block
2629 * @action: The event triggering the callback
2630 * @hcpu: The index of the CPU that the event is for
2631 *
2632 * This creates or destroys per-CPU data for fcoe
2633 *
2634 * Returns NOTIFY_OK always.
2635 */
2636static int bnx2fc_cpu_callback(struct notifier_block *nfb,
2637 unsigned long action, void *hcpu)
2638{
2639 unsigned cpu = (unsigned long)hcpu;
2640
2641 switch (action) {
2642 case CPU_ONLINE:
2643 case CPU_ONLINE_FROZEN:
2644 printk(PFX "CPU %x online: Create Rx thread\n", cpu);
2645 bnx2fc_percpu_thread_create(cpu);
2646 break;
2647 case CPU_DEAD:
2648 case CPU_DEAD_FROZEN:
2649 printk(PFX "CPU %x offline: Remove Rx thread\n", cpu);
2650 bnx2fc_percpu_thread_destroy(cpu);
2651 break;
2652 default:
2653 break;
2654 }
2655 return NOTIFY_OK;
2656}
2657
10755d3f
JC		 2658static int bnx2fc_slave_configure(struct scsi_device *sdev)
2659{
2660 if (!bnx2fc_queue_depth)
2661 return 0;
2662
2663 scsi_change_queue_depth(sdev, bnx2fc_queue_depth);
2664 return 0;
2665}
2666
853e2bd2
BG		 2667/**
2668 * bnx2fc_mod_init - module init entry point
2669 *
2670 * Initialize driver wide global data structures, and register
2671 * with cnic module
2672 **/
2673static int __init bnx2fc_mod_init(void)
2674{
2675 struct fcoe_percpu_s *bg;
2676 struct task_struct *l2_thread;
2677 int rc = 0;
2678 unsigned int cpu = 0;
2679 struct bnx2fc_percpu_s *p;
2680
2681 printk(KERN_INFO PFX "%s", version);
2682
2683 /* register as a fcoe transport */
2684 rc = fcoe_transport_attach(&bnx2fc_transport);
2685 if (rc) {
2686 printk(KERN_ERR "failed to register an fcoe transport, check "
2687 "if libfcoe is loaded\n");
2688 goto out;
2689 }
2690
2691 INIT_LIST_HEAD(&adapter_list);
aea71a02 2692 INIT_LIST_HEAD(&if_list);
853e2bd2
BG		 2693 mutex_init(&bnx2fc_dev_lock);
2694 adapter_count = 0;
2695
2696 /* Attach FC transport template */
2697 rc = bnx2fc_attach_transport();
2698 if (rc)
2699 goto detach_ft;
2700
2701 bnx2fc_wq = alloc_workqueue("bnx2fc", 0, 0);
2702 if (!bnx2fc_wq) {
2703 rc = -ENOMEM;
2704 goto release_bt;
2705 }
2706
2707 bg = &bnx2fc_global;
2708 skb_queue_head_init(&bg->fcoe_rx_list);
2709 l2_thread = kthread_create(bnx2fc_l2_rcv_thread,
2710 (void *)bg,
2711 "bnx2fc_l2_thread");
2712 if (IS_ERR(l2_thread)) {
2713 rc = PTR_ERR(l2_thread);
2714 goto free_wq;
2715 }
2716 wake_up_process(l2_thread);
2717 spin_lock_bh(&bg->fcoe_rx_list.lock);
4b9bc86d 2718 bg->kthread = l2_thread;
853e2bd2
BG		 2719 spin_unlock_bh(&bg->fcoe_rx_list.lock);
2720
2721 for_each_possible_cpu(cpu) {
2722 p = &per_cpu(bnx2fc_percpu, cpu);
2723 INIT_LIST_HEAD(&p->work_list);
2724 spin_lock_init(&p->fp_work_lock);
2725 }
2726
7229b6d0
SB		 2727 cpu_notifier_register_begin();
2728
853e2bd2
BG		 2729 for_each_online_cpu(cpu) {
2730 bnx2fc_percpu_thread_create(cpu);
2731 }
2732
2733 /* Initialize per CPU interrupt thread */
7229b6d0
SB		 2734 __register_hotcpu_notifier(&bnx2fc_cpu_notifier);
2735
2736 cpu_notifier_register_done();
853e2bd2
BG		 2737
2738 cnic_register_driver(CNIC_ULP_FCOE, &bnx2fc_cnic_cb);
2739
2740 return 0;
2741
2742free_wq:
2743 destroy_workqueue(bnx2fc_wq);
2744release_bt:
2745 bnx2fc_release_transport();
2746detach_ft:
2747 fcoe_transport_detach(&bnx2fc_transport);
2748out:
2749 return rc;
2750}
2751
2752static void __exit bnx2fc_mod_exit(void)
2753{
2754 LIST_HEAD(to_be_deleted);
2755 struct bnx2fc_hba *hba, *next;
2756 struct fcoe_percpu_s *bg;
2757 struct task_struct *l2_thread;
2758 struct sk_buff *skb;
2759 unsigned int cpu = 0;
2760
2761 /*
2762 * NOTE: Since cnic calls register_driver routine rtnl_lock,
2763 * it will have higher precedence than bnx2fc_dev_lock.
2764 * unregister_device() cannot be called with bnx2fc_dev_lock
2765 * held.
2766 */
2767 mutex_lock(&bnx2fc_dev_lock);
2768 list_splice(&adapter_list, &to_be_deleted);
2769 INIT_LIST_HEAD(&adapter_list);
2770 adapter_count = 0;
2771 mutex_unlock(&bnx2fc_dev_lock);
2772
2773 /* Unregister with cnic */
aea71a02
BPG		 2774 list_for_each_entry_safe(hba, next, &to_be_deleted, list) {
2775 list_del_init(&hba->list);
2776 printk(KERN_ERR PFX "MOD_EXIT:destroy hba = 0x%p\n",
2777 hba);
853e2bd2
BG		 2778 bnx2fc_ulp_stop(hba);
2779 /* unregister cnic device */
2780 if (test_and_clear_bit(BNX2FC_CNIC_REGISTERED,
2781 &hba->reg_with_cnic))
aea71a02
BPG		 2782 hba->cnic->unregister_device(hba->cnic,
2783 CNIC_ULP_FCOE);
2784 bnx2fc_hba_destroy(hba);
853e2bd2
BG		 2785 }
2786 cnic_unregister_driver(CNIC_ULP_FCOE);
2787
2788 /* Destroy global thread */
2789 bg = &bnx2fc_global;
2790 spin_lock_bh(&bg->fcoe_rx_list.lock);
4b9bc86d
SAS		 2791 l2_thread = bg->kthread;
2792 bg->kthread = NULL;
853e2bd2
BG		 2793 while ((skb = __skb_dequeue(&bg->fcoe_rx_list)) != NULL)
2794 kfree_skb(skb);
2795
2796 spin_unlock_bh(&bg->fcoe_rx_list.lock);
2797
2798 if (l2_thread)
2799 kthread_stop(l2_thread);
2800
7229b6d0 2801 cpu_notifier_register_begin();
853e2bd2
BG		 2802
2803 /* Destroy per cpu threads */
2804 for_each_online_cpu(cpu) {
2805 bnx2fc_percpu_thread_destroy(cpu);
2806 }
2807
7229b6d0
SB		 2808 __unregister_hotcpu_notifier(&bnx2fc_cpu_notifier);
2809
2810 cpu_notifier_register_done();
2811
853e2bd2
BG		 2812 destroy_workqueue(bnx2fc_wq);
2813 /*
2814 * detach from scsi transport
2815 * must happen after all destroys are done
2816 */
2817 bnx2fc_release_transport();
2818
2819 /* detach from fcoe transport */
2820 fcoe_transport_detach(&bnx2fc_transport);
2821}
2822
2823module_init(bnx2fc_mod_init);
2824module_exit(bnx2fc_mod_exit);
2825
8d55e507 2826static struct fcoe_sysfs_function_template bnx2fc_fcoe_sysfs_templ = {
6e89ea3f 2827 .set_fcoe_ctlr_enabled = bnx2fc_ctlr_enabled,
b8b3e697
YZ		 2828 .get_fcoe_ctlr_link_fail = fcoe_ctlr_get_lesb,
2829 .get_fcoe_ctlr_vlink_fail = fcoe_ctlr_get_lesb,
2830 .get_fcoe_ctlr_miss_fka = fcoe_ctlr_get_lesb,
2831 .get_fcoe_ctlr_symb_err = fcoe_ctlr_get_lesb,
2832 .get_fcoe_ctlr_err_block = fcoe_ctlr_get_lesb,
2833 .get_fcoe_ctlr_fcs_error = fcoe_ctlr_get_lesb,
8d55e507
RL		 2834
2835 .get_fcoe_fcf_selected = fcoe_fcf_get_selected,
2836 .get_fcoe_fcf_vlan_id = bnx2fc_fcf_get_vlan_id,
2837};
2838
853e2bd2
BG		 2839static struct fc_function_template bnx2fc_transport_function = {
2840 .show_host_node_name = 1,
2841 .show_host_port_name = 1,
2842 .show_host_supported_classes = 1,
2843 .show_host_supported_fc4s = 1,
2844 .show_host_active_fc4s = 1,
2845 .show_host_maxframe_size = 1,
2846
2847 .show_host_port_id = 1,
2848 .show_host_supported_speeds = 1,
2849 .get_host_speed = fc_get_host_speed,
2850 .show_host_speed = 1,
2851 .show_host_port_type = 1,
2852 .get_host_port_state = fc_get_host_port_state,
2853 .show_host_port_state = 1,
2854 .show_host_symbolic_name = 1,
2855
2856 .dd_fcrport_size = (sizeof(struct fc_rport_libfc_priv) +
2857 sizeof(struct bnx2fc_rport)),
2858 .show_rport_maxframe_size = 1,
2859 .show_rport_supported_classes = 1,
2860
2861 .show_host_fabric_name = 1,
2862 .show_starget_node_name = 1,
2863 .show_starget_port_name = 1,
2864 .show_starget_port_id = 1,
2865 .set_rport_dev_loss_tmo = fc_set_rport_loss_tmo,
2866 .show_rport_dev_loss_tmo = 1,
2867 .get_fc_host_stats = bnx2fc_get_host_stats,
2868
2869 .issue_fc_host_lip = bnx2fc_fcoe_reset,
2870
2871 .terminate_rport_io = fc_rport_terminate_io,
2872
2873 .vport_create = bnx2fc_vport_create,
2874 .vport_delete = bnx2fc_vport_destroy,
2875 .vport_disable = bnx2fc_vport_disable,
e9a5289c 2876 .bsg_request = fc_lport_bsg_request,
853e2bd2
BG		 2877};
2878
2879static struct fc_function_template bnx2fc_vport_xport_function = {
2880 .show_host_node_name = 1,
2881 .show_host_port_name = 1,
2882 .show_host_supported_classes = 1,
2883 .show_host_supported_fc4s = 1,
2884 .show_host_active_fc4s = 1,
2885 .show_host_maxframe_size = 1,
2886
2887 .show_host_port_id = 1,
2888 .show_host_supported_speeds = 1,
2889 .get_host_speed = fc_get_host_speed,
2890 .show_host_speed = 1,
2891 .show_host_port_type = 1,
2892 .get_host_port_state = fc_get_host_port_state,
2893 .show_host_port_state = 1,
2894 .show_host_symbolic_name = 1,
2895
2896 .dd_fcrport_size = (sizeof(struct fc_rport_libfc_priv) +
2897 sizeof(struct bnx2fc_rport)),
2898 .show_rport_maxframe_size = 1,
2899 .show_rport_supported_classes = 1,
2900
2901 .show_host_fabric_name = 1,
2902 .show_starget_node_name = 1,
2903 .show_starget_port_name = 1,
2904 .show_starget_port_id = 1,
2905 .set_rport_dev_loss_tmo = fc_set_rport_loss_tmo,
2906 .show_rport_dev_loss_tmo = 1,
2907 .get_fc_host_stats = fc_get_host_stats,
2908 .issue_fc_host_lip = bnx2fc_fcoe_reset,
2909 .terminate_rport_io = fc_rport_terminate_io,
e9a5289c 2910 .bsg_request = fc_lport_bsg_request,
853e2bd2
BG		 2911};
2912
10755d3f
JC		 2913/*
2914 * Additional scsi_host attributes.
2915 */
2916static ssize_t
2917bnx2fc_tm_timeout_show(struct device *dev, struct device_attribute *attr,
2918 char *buf)
2919{
2920 struct Scsi_Host *shost = class_to_shost(dev);
2921 struct fc_lport *lport = shost_priv(shost);
2922 struct fcoe_port *port = lport_priv(lport);
2923 struct bnx2fc_interface *interface = port->priv;
2924
2925 sprintf(buf, "%u\n", interface->tm_timeout);
2926 return strlen(buf);
2927}
2928
2929static ssize_t
2930bnx2fc_tm_timeout_store(struct device *dev,
2931 struct device_attribute *attr, const char *buf, size_t count)
2932{
2933 struct Scsi_Host *shost = class_to_shost(dev);
2934 struct fc_lport *lport = shost_priv(shost);
2935 struct fcoe_port *port = lport_priv(lport);
2936 struct bnx2fc_interface *interface = port->priv;
2937 int rval, val;
2938
2939 rval = kstrtouint(buf, 10, &val);
2940 if (rval)
2941 return rval;
2942 if (val > 255)
2943 return -ERANGE;
2944
2945 interface->tm_timeout = (u8)val;
2946 return strlen(buf);
2947}
2948
2949static DEVICE_ATTR(tm_timeout, S_IRUGO|S_IWUSR, bnx2fc_tm_timeout_show,
2950 bnx2fc_tm_timeout_store);
2951
2952static struct device_attribute *bnx2fc_host_attrs[] = {
2953 &dev_attr_tm_timeout,
2954 NULL,
2955};
2956
853e2bd2
BG		 2957/**
2958 * scsi_host_template structure used while registering with SCSI-ml
2959 */
2960static struct scsi_host_template bnx2fc_shost_template = {
2961 .module = THIS_MODULE,
17d87c45 2962 .name = "QLogic Offload FCoE Initiator",
853e2bd2
BG		 2963 .queuecommand = bnx2fc_queuecommand,
2964 .eh_abort_handler = bnx2fc_eh_abort, /* abts */
2965 .eh_device_reset_handler = bnx2fc_eh_device_reset, /* lun reset */
2966 .eh_target_reset_handler = bnx2fc_eh_target_reset, /* tgt reset */
2967 .eh_host_reset_handler = fc_eh_host_reset,
2968 .slave_alloc = fc_slave_alloc,
db5ed4df 2969 .change_queue_depth = scsi_change_queue_depth,
853e2bd2
BG		 2970 .this_id = -1,
2971 .cmd_per_lun = 3,
853e2bd2
BG		 2972 .use_clustering = ENABLE_CLUSTERING,
2973 .sg_tablesize = BNX2FC_MAX_BDS_PER_CMD,
d450d778 2974 .max_sectors = 1024,
c40ecc12 2975 .track_queue_depth = 1,
10755d3f
JC		 2976 .slave_configure = bnx2fc_slave_configure,
2977 .shost_attrs = bnx2fc_host_attrs,
853e2bd2
BG		 2978};
2979
2980static struct libfc_function_template bnx2fc_libfc_fcn_templ = {
2981 .frame_send = bnx2fc_xmit,
2982 .elsct_send = bnx2fc_elsct_send,
2983 .fcp_abort_io = bnx2fc_abort_io,
2984 .fcp_cleanup = bnx2fc_cleanup,
b8b3e697 2985 .get_lesb = fcoe_get_lesb,
853e2bd2
BG		 2986 .rport_event_callback = bnx2fc_rport_event_handler,
2987};
2988
2989/**
2990 * bnx2fc_cnic_cb - global template of bnx2fc - cnic driver interface
2991 * structure carrying callback function pointers
2992 */
2993static struct cnic_ulp_ops bnx2fc_cnic_cb = {
2994 .owner = THIS_MODULE,
2995 .cnic_init = bnx2fc_ulp_init,
2996 .cnic_exit = bnx2fc_ulp_exit,
2997 .cnic_start = bnx2fc_ulp_start,
2998 .cnic_stop = bnx2fc_ulp_stop,
2999 .indicate_kcqes = bnx2fc_indicate_kcqe,
3000 .indicate_netevent = bnx2fc_indicate_netevent,
2e499d3c 3001 .cnic_get_stats = bnx2fc_ulp_get_stats,
853e2bd2 3002};
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