1 /* bnx2fc_fcoe.c: QLogic Linux FCoE offload driver.
2 * This file contains the code that interacts with libfc, libfcoe,
3 * cnic modules to create FCoE instances, send/receive non-offloaded
4 * FIP/FCoE packets, listen to link events etc.
6 * Copyright (c) 2008-2013 Broadcom Corporation
7 * Copyright (c) 2014-2016 QLogic Corporation
8 * Copyright (c) 2016-2017 Cavium Inc.
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation.
14 * Written by: Bhanu Prakash Gollapudi (bprakash@broadcom.com)
19 static struct list_head adapter_list
;
20 static struct list_head if_list
;
21 static u32 adapter_count
;
22 static DEFINE_MUTEX(bnx2fc_dev_lock
);
23 DEFINE_PER_CPU(struct bnx2fc_percpu_s
, bnx2fc_percpu
);
25 #define DRV_MODULE_NAME "bnx2fc"
26 #define DRV_MODULE_VERSION BNX2FC_VERSION
27 #define DRV_MODULE_RELDATE "October 15, 2015"
30 static char version
[] =
31 "QLogic FCoE Driver " DRV_MODULE_NAME \
32 " v" DRV_MODULE_VERSION
" (" DRV_MODULE_RELDATE
")\n";
35 MODULE_AUTHOR("Bhanu Prakash Gollapudi <bprakash@broadcom.com>");
36 MODULE_DESCRIPTION("QLogic FCoE Driver");
37 MODULE_LICENSE("GPL");
38 MODULE_VERSION(DRV_MODULE_VERSION
);
40 #define BNX2FC_MAX_QUEUE_DEPTH 256
41 #define BNX2FC_MIN_QUEUE_DEPTH 32
42 #define FCOE_WORD_TO_BYTE 4
44 static struct scsi_transport_template
*bnx2fc_transport_template
;
45 static struct scsi_transport_template
*bnx2fc_vport_xport_template
;
47 struct workqueue_struct
*bnx2fc_wq
;
49 /* bnx2fc structure needs only one instance of the fcoe_percpu_s structure.
50 * Here the io threads are per cpu but the l2 thread is just one
52 struct fcoe_percpu_s bnx2fc_global
;
53 DEFINE_SPINLOCK(bnx2fc_global_lock
);
55 static struct cnic_ulp_ops bnx2fc_cnic_cb
;
56 static struct libfc_function_template bnx2fc_libfc_fcn_templ
;
57 static struct scsi_host_template bnx2fc_shost_template
;
58 static struct fc_function_template bnx2fc_transport_function
;
59 static struct fcoe_sysfs_function_template bnx2fc_fcoe_sysfs_templ
;
60 static struct fc_function_template bnx2fc_vport_xport_function
;
61 static int bnx2fc_create(struct net_device
*netdev
, enum fip_mode fip_mode
);
62 static void __bnx2fc_destroy(struct bnx2fc_interface
*interface
);
63 static int bnx2fc_destroy(struct net_device
*net_device
);
64 static int bnx2fc_enable(struct net_device
*netdev
);
65 static int bnx2fc_disable(struct net_device
*netdev
);
67 /* fcoe_syfs control interface handlers */
68 static int bnx2fc_ctlr_alloc(struct net_device
*netdev
);
69 static int bnx2fc_ctlr_enabled(struct fcoe_ctlr_device
*cdev
);
71 static void bnx2fc_recv_frame(struct sk_buff
*skb
);
73 static void bnx2fc_start_disc(struct bnx2fc_interface
*interface
);
74 static int bnx2fc_shost_config(struct fc_lport
*lport
, struct device
*dev
);
75 static int bnx2fc_lport_config(struct fc_lport
*lport
);
76 static int bnx2fc_em_config(struct fc_lport
*lport
, struct bnx2fc_hba
*hba
);
77 static int bnx2fc_bind_adapter_devices(struct bnx2fc_hba
*hba
);
78 static void bnx2fc_unbind_adapter_devices(struct bnx2fc_hba
*hba
);
79 static int bnx2fc_bind_pcidev(struct bnx2fc_hba
*hba
);
80 static void bnx2fc_unbind_pcidev(struct bnx2fc_hba
*hba
);
81 static struct fc_lport
*bnx2fc_if_create(struct bnx2fc_interface
*interface
,
82 struct device
*parent
, int npiv
);
83 static void bnx2fc_destroy_work(struct work_struct
*work
);
85 static struct bnx2fc_hba
*bnx2fc_hba_lookup(struct net_device
*phys_dev
);
86 static struct bnx2fc_interface
*bnx2fc_interface_lookup(struct net_device
88 static inline void bnx2fc_interface_put(struct bnx2fc_interface
*interface
);
89 static struct bnx2fc_hba
*bnx2fc_find_hba_for_cnic(struct cnic_dev
*cnic
);
91 static int bnx2fc_fw_init(struct bnx2fc_hba
*hba
);
92 static void bnx2fc_fw_destroy(struct bnx2fc_hba
*hba
);
94 static void bnx2fc_port_shutdown(struct fc_lport
*lport
);
95 static void bnx2fc_stop(struct bnx2fc_interface
*interface
);
96 static int __init
bnx2fc_mod_init(void);
97 static void __exit
bnx2fc_mod_exit(void);
99 unsigned int bnx2fc_debug_level
;
100 module_param_named(debug_logging
, bnx2fc_debug_level
, int, S_IRUGO
|S_IWUSR
);
101 MODULE_PARM_DESC(debug_logging
,
102 "Option to enable extended logging,\n"
103 "\t\tDefault is 0 - no logging.\n"
104 "\t\t0x01 - SCSI cmd error, cleanup.\n"
105 "\t\t0x02 - Session setup, cleanup, etc.\n"
106 "\t\t0x04 - lport events, link, mtu, etc.\n"
107 "\t\t0x08 - ELS logs.\n"
108 "\t\t0x10 - fcoe L2 fame related logs.\n"
109 "\t\t0xff - LOG all messages.");
111 uint bnx2fc_devloss_tmo
;
112 module_param_named(devloss_tmo
, bnx2fc_devloss_tmo
, uint
, S_IRUGO
);
113 MODULE_PARM_DESC(devloss_tmo
, " Change devloss_tmo for the remote ports "
114 "attached via bnx2fc.");
116 uint bnx2fc_max_luns
= BNX2FC_MAX_LUN
;
117 module_param_named(max_luns
, bnx2fc_max_luns
, uint
, S_IRUGO
);
118 MODULE_PARM_DESC(max_luns
, " Change the default max_lun per SCSI host. Default "
121 uint bnx2fc_queue_depth
;
122 module_param_named(queue_depth
, bnx2fc_queue_depth
, uint
, S_IRUGO
);
123 MODULE_PARM_DESC(queue_depth
, " Change the default queue depth of SCSI devices "
124 "attached via bnx2fc.");
127 module_param_named(log_fka
, bnx2fc_log_fka
, uint
, S_IRUGO
|S_IWUSR
);
128 MODULE_PARM_DESC(log_fka
, " Print message to kernel log when fcoe is "
129 "initiating a FIP keep alive when debug logging is enabled.");
131 static inline struct net_device
*bnx2fc_netdev(const struct fc_lport
*lport
)
133 return ((struct bnx2fc_interface
*)
134 ((struct fcoe_port
*)lport_priv(lport
))->priv
)->netdev
;
137 static void bnx2fc_fcf_get_vlan_id(struct fcoe_fcf_device
*fcf_dev
)
139 struct fcoe_ctlr_device
*ctlr_dev
=
140 fcoe_fcf_dev_to_ctlr_dev(fcf_dev
);
141 struct fcoe_ctlr
*ctlr
= fcoe_ctlr_device_priv(ctlr_dev
);
142 struct bnx2fc_interface
*fcoe
= fcoe_ctlr_priv(ctlr
);
144 fcf_dev
->vlan_id
= fcoe
->vlan_id
;
147 static void bnx2fc_clean_rx_queue(struct fc_lport
*lp
)
149 struct fcoe_percpu_s
*bg
;
150 struct fcoe_rcv_info
*fr
;
151 struct sk_buff_head
*list
;
152 struct sk_buff
*skb
, *next
;
153 struct sk_buff
*head
;
156 spin_lock_bh(&bg
->fcoe_rx_list
.lock
);
157 list
= &bg
->fcoe_rx_list
;
159 for (skb
= head
; skb
!= (struct sk_buff
*)list
;
162 fr
= fcoe_dev_from_skb(skb
);
163 if (fr
->fr_dev
== lp
) {
164 __skb_unlink(skb
, list
);
168 spin_unlock_bh(&bg
->fcoe_rx_list
.lock
);
171 int bnx2fc_get_paged_crc_eof(struct sk_buff
*skb
, int tlen
)
174 spin_lock(&bnx2fc_global_lock
);
175 rc
= fcoe_get_paged_crc_eof(skb
, tlen
, &bnx2fc_global
);
176 spin_unlock(&bnx2fc_global_lock
);
181 static void bnx2fc_abort_io(struct fc_lport
*lport
)
184 * This function is no-op for bnx2fc, but we do
185 * not want to leave it as NULL either, as libfc
186 * can call the default function which is
191 static void bnx2fc_cleanup(struct fc_lport
*lport
)
193 struct fcoe_port
*port
= lport_priv(lport
);
194 struct bnx2fc_interface
*interface
= port
->priv
;
195 struct bnx2fc_hba
*hba
= interface
->hba
;
196 struct bnx2fc_rport
*tgt
;
199 BNX2FC_MISC_DBG("Entered %s\n", __func__
);
200 mutex_lock(&hba
->hba_mutex
);
201 spin_lock_bh(&hba
->hba_lock
);
202 for (i
= 0; i
< BNX2FC_NUM_MAX_SESS
; i
++) {
203 tgt
= hba
->tgt_ofld_list
[i
];
205 /* Cleanup IOs belonging to requested vport */
206 if (tgt
->port
== port
) {
207 spin_unlock_bh(&hba
->hba_lock
);
208 BNX2FC_TGT_DBG(tgt
, "flush/cleanup\n");
209 bnx2fc_flush_active_ios(tgt
);
210 spin_lock_bh(&hba
->hba_lock
);
214 spin_unlock_bh(&hba
->hba_lock
);
215 mutex_unlock(&hba
->hba_mutex
);
218 static int bnx2fc_xmit_l2_frame(struct bnx2fc_rport
*tgt
,
221 struct fc_rport_priv
*rdata
= tgt
->rdata
;
222 struct fc_frame_header
*fh
;
225 fh
= fc_frame_header_get(fp
);
226 BNX2FC_TGT_DBG(tgt
, "Xmit L2 frame rport = 0x%x, oxid = 0x%x, "
227 "r_ctl = 0x%x\n", rdata
->ids
.port_id
,
228 ntohs(fh
->fh_ox_id
), fh
->fh_r_ctl
);
229 if ((fh
->fh_type
== FC_TYPE_ELS
) &&
230 (fh
->fh_r_ctl
== FC_RCTL_ELS_REQ
)) {
232 switch (fc_frame_payload_op(fp
)) {
234 rc
= bnx2fc_send_adisc(tgt
, fp
);
237 rc
= bnx2fc_send_logo(tgt
, fp
);
240 rc
= bnx2fc_send_rls(tgt
, fp
);
245 } else if ((fh
->fh_type
== FC_TYPE_BLS
) &&
246 (fh
->fh_r_ctl
== FC_RCTL_BA_ABTS
))
247 BNX2FC_TGT_DBG(tgt
, "ABTS frame\n");
249 BNX2FC_TGT_DBG(tgt
, "Send L2 frame type 0x%x "
250 "rctl 0x%x thru non-offload path\n",
251 fh
->fh_type
, fh
->fh_r_ctl
);
261 * bnx2fc_xmit - bnx2fc's FCoE frame transmit function
263 * @lport: the associated local port
264 * @fp: the fc_frame to be transmitted
266 static int bnx2fc_xmit(struct fc_lport
*lport
, struct fc_frame
*fp
)
269 struct fcoe_crc_eof
*cp
;
271 struct fc_frame_header
*fh
;
272 struct bnx2fc_interface
*interface
;
273 struct fcoe_ctlr
*ctlr
;
274 struct bnx2fc_hba
*hba
;
275 struct fcoe_port
*port
;
277 struct bnx2fc_rport
*tgt
;
278 struct fc_stats
*stats
;
281 unsigned int hlen
, tlen
, elen
;
284 port
= (struct fcoe_port
*)lport_priv(lport
);
285 interface
= port
->priv
;
286 ctlr
= bnx2fc_to_ctlr(interface
);
287 hba
= interface
->hba
;
289 fh
= fc_frame_header_get(fp
);
292 if (!lport
->link_up
) {
293 BNX2FC_HBA_DBG(lport
, "bnx2fc_xmit link down\n");
298 if (unlikely(fh
->fh_r_ctl
== FC_RCTL_ELS_REQ
)) {
299 if (!ctlr
->sel_fcf
) {
300 BNX2FC_HBA_DBG(lport
, "FCF not selected yet!\n");
304 if (fcoe_ctlr_els_send(ctlr
, lport
, skb
))
312 * Snoop the frame header to check if the frame is for
313 * an offloaded session
316 * tgt_ofld_list access is synchronized using
317 * both hba mutex and hba lock. Atleast hba mutex or
318 * hba lock needs to be held for read access.
321 spin_lock_bh(&hba
->hba_lock
);
322 tgt
= bnx2fc_tgt_lookup(port
, ntoh24(fh
->fh_d_id
));
323 if (tgt
&& (test_bit(BNX2FC_FLAG_SESSION_READY
, &tgt
->flags
))) {
324 /* This frame is for offloaded session */
325 BNX2FC_HBA_DBG(lport
, "xmit: Frame is for offloaded session "
326 "port_id = 0x%x\n", ntoh24(fh
->fh_d_id
));
327 spin_unlock_bh(&hba
->hba_lock
);
328 rc
= bnx2fc_xmit_l2_frame(tgt
, fp
);
334 spin_unlock_bh(&hba
->hba_lock
);
337 elen
= sizeof(struct ethhdr
);
338 hlen
= sizeof(struct fcoe_hdr
);
339 tlen
= sizeof(struct fcoe_crc_eof
);
340 wlen
= (skb
->len
- tlen
+ sizeof(crc
)) / FCOE_WORD_TO_BYTE
;
342 skb
->ip_summed
= CHECKSUM_NONE
;
343 crc
= fcoe_fc_crc(fp
);
345 /* copy port crc and eof to the skb buff */
346 if (skb_is_nonlinear(skb
)) {
348 if (bnx2fc_get_paged_crc_eof(skb
, tlen
)) {
352 frag
= &skb_shinfo(skb
)->frags
[skb_shinfo(skb
)->nr_frags
- 1];
353 cp
= kmap_atomic(skb_frag_page(frag
)) + frag
->page_offset
;
355 cp
= (struct fcoe_crc_eof
*)skb_put(skb
, tlen
);
358 memset(cp
, 0, sizeof(*cp
));
360 cp
->fcoe_crc32
= cpu_to_le32(~crc
);
361 if (skb_is_nonlinear(skb
)) {
366 /* adjust skb network/transport offsets to match mac/fcoe/port */
367 skb_push(skb
, elen
+ hlen
);
368 skb_reset_mac_header(skb
);
369 skb_reset_network_header(skb
);
371 skb
->protocol
= htons(ETH_P_FCOE
);
372 skb
->dev
= interface
->netdev
;
374 /* fill up mac and fcoe headers */
376 eh
->h_proto
= htons(ETH_P_FCOE
);
378 fc_fcoe_set_mac(eh
->h_dest
, fh
->fh_d_id
);
380 /* insert GW address */
381 memcpy(eh
->h_dest
, ctlr
->dest_addr
, ETH_ALEN
);
383 if (unlikely(ctlr
->flogi_oxid
!= FC_XID_UNKNOWN
))
384 memcpy(eh
->h_source
, ctlr
->ctl_src_addr
, ETH_ALEN
);
386 memcpy(eh
->h_source
, port
->data_src_addr
, ETH_ALEN
);
388 hp
= (struct fcoe_hdr
*)(eh
+ 1);
389 memset(hp
, 0, sizeof(*hp
));
391 FC_FCOE_ENCAPS_VER(hp
, FC_FCOE_VER
);
394 /* fcoe lso, mss is in max_payload which is non-zero for FCP data */
395 if (lport
->seq_offload
&& fr_max_payload(fp
)) {
396 skb_shinfo(skb
)->gso_type
= SKB_GSO_FCOE
;
397 skb_shinfo(skb
)->gso_size
= fr_max_payload(fp
);
399 skb_shinfo(skb
)->gso_type
= 0;
400 skb_shinfo(skb
)->gso_size
= 0;
404 stats
= per_cpu_ptr(lport
->stats
, get_cpu());
406 stats
->TxWords
+= wlen
;
409 /* send down to lld */
411 if (port
->fcoe_pending_queue
.qlen
)
412 fcoe_check_wait_queue(lport
, skb
);
413 else if (fcoe_start_io(skb
))
414 fcoe_check_wait_queue(lport
, skb
);
420 * bnx2fc_rcv - This is bnx2fc's receive function called by NET_RX_SOFTIRQ
422 * @skb: the receive socket buffer
423 * @dev: associated net device
425 * @olddev: last device
427 * This function receives the packet and builds FC frame and passes it up
429 static int bnx2fc_rcv(struct sk_buff
*skb
, struct net_device
*dev
,
430 struct packet_type
*ptype
, struct net_device
*olddev
)
432 struct fc_lport
*lport
;
433 struct bnx2fc_interface
*interface
;
434 struct fcoe_ctlr
*ctlr
;
435 struct fc_frame_header
*fh
;
436 struct fcoe_rcv_info
*fr
;
437 struct fcoe_percpu_s
*bg
;
438 struct sk_buff
*tmp_skb
;
441 interface
= container_of(ptype
, struct bnx2fc_interface
,
443 ctlr
= bnx2fc_to_ctlr(interface
);
446 if (unlikely(lport
== NULL
)) {
447 printk(KERN_ERR PFX
"bnx2fc_rcv: lport is NULL\n");
451 tmp_skb
= skb_share_check(skb
, GFP_ATOMIC
);
457 if (unlikely(eth_hdr(skb
)->h_proto
!= htons(ETH_P_FCOE
))) {
458 printk(KERN_ERR PFX
"bnx2fc_rcv: Wrong FC type frame\n");
463 * Check for minimum frame length, and make sure required FCoE
464 * and FC headers are pulled into the linear data area.
466 if (unlikely((skb
->len
< FCOE_MIN_FRAME
) ||
467 !pskb_may_pull(skb
, FCOE_HEADER_LEN
)))
470 skb_set_transport_header(skb
, sizeof(struct fcoe_hdr
));
471 fh
= (struct fc_frame_header
*) skb_transport_header(skb
);
473 oxid
= ntohs(fh
->fh_ox_id
);
475 fr
= fcoe_dev_from_skb(skb
);
479 spin_lock(&bg
->fcoe_rx_list
.lock
);
481 __skb_queue_tail(&bg
->fcoe_rx_list
, skb
);
482 if (bg
->fcoe_rx_list
.qlen
== 1)
483 wake_up_process(bg
->kthread
);
485 spin_unlock(&bg
->fcoe_rx_list
.lock
);
493 static int bnx2fc_l2_rcv_thread(void *arg
)
495 struct fcoe_percpu_s
*bg
= arg
;
498 set_user_nice(current
, MIN_NICE
);
499 set_current_state(TASK_INTERRUPTIBLE
);
500 while (!kthread_should_stop()) {
502 spin_lock_bh(&bg
->fcoe_rx_list
.lock
);
503 while ((skb
= __skb_dequeue(&bg
->fcoe_rx_list
)) != NULL
) {
504 spin_unlock_bh(&bg
->fcoe_rx_list
.lock
);
505 bnx2fc_recv_frame(skb
);
506 spin_lock_bh(&bg
->fcoe_rx_list
.lock
);
508 __set_current_state(TASK_INTERRUPTIBLE
);
509 spin_unlock_bh(&bg
->fcoe_rx_list
.lock
);
511 __set_current_state(TASK_RUNNING
);
516 static void bnx2fc_recv_frame(struct sk_buff
*skb
)
519 struct fc_lport
*lport
;
520 struct fcoe_rcv_info
*fr
;
521 struct fc_stats
*stats
;
522 struct fc_frame_header
*fh
;
523 struct fcoe_crc_eof crc_eof
;
525 struct fc_lport
*vn_port
;
526 struct fcoe_port
*port
, *phys_port
;
530 struct bnx2fc_interface
*interface
;
531 struct fcoe_ctlr
*ctlr
;
533 fr
= fcoe_dev_from_skb(skb
);
535 if (unlikely(lport
== NULL
)) {
536 printk(KERN_ERR PFX
"Invalid lport struct\n");
541 if (skb_is_nonlinear(skb
))
543 mac
= eth_hdr(skb
)->h_source
;
544 dest_mac
= eth_hdr(skb
)->h_dest
;
546 /* Pull the header */
547 hp
= (struct fcoe_hdr
*) skb_network_header(skb
);
548 fh
= (struct fc_frame_header
*) skb_transport_header(skb
);
549 skb_pull(skb
, sizeof(struct fcoe_hdr
));
550 fr_len
= skb
->len
- sizeof(struct fcoe_crc_eof
);
552 fp
= (struct fc_frame
*)skb
;
555 fr_sof(fp
) = hp
->fcoe_sof
;
556 if (skb_copy_bits(skb
, fr_len
, &crc_eof
, sizeof(crc_eof
))) {
560 fr_eof(fp
) = crc_eof
.fcoe_eof
;
561 fr_crc(fp
) = crc_eof
.fcoe_crc32
;
562 if (pskb_trim(skb
, fr_len
)) {
567 phys_port
= lport_priv(lport
);
568 interface
= phys_port
->priv
;
569 ctlr
= bnx2fc_to_ctlr(interface
);
571 fh
= fc_frame_header_get(fp
);
573 if (ntoh24(&dest_mac
[3]) != ntoh24(fh
->fh_d_id
)) {
574 BNX2FC_HBA_DBG(lport
, "FC frame d_id mismatch with MAC %pM.\n",
580 vn_port
= fc_vport_id_lookup(lport
, ntoh24(fh
->fh_d_id
));
582 port
= lport_priv(vn_port
);
583 if (!ether_addr_equal(port
->data_src_addr
, dest_mac
)) {
584 BNX2FC_HBA_DBG(lport
, "fpma mismatch\n");
590 if (!ether_addr_equal(mac
, ctlr
->dest_addr
)) {
591 BNX2FC_HBA_DBG(lport
, "Wrong source address: mac:%pM dest_addr:%pM.\n",
592 mac
, ctlr
->dest_addr
);
597 if (fh
->fh_r_ctl
== FC_RCTL_DD_SOL_DATA
&&
598 fh
->fh_type
== FC_TYPE_FCP
) {
599 /* Drop FCP data. We dont this in L2 path */
603 if (fh
->fh_r_ctl
== FC_RCTL_ELS_REQ
&&
604 fh
->fh_type
== FC_TYPE_ELS
) {
605 switch (fc_frame_payload_op(fp
)) {
607 if (ntoh24(fh
->fh_s_id
) == FC_FID_FLOGI
) {
608 /* drop non-FIP LOGO */
616 if (fh
->fh_r_ctl
== FC_RCTL_BA_ABTS
) {
617 /* Drop incoming ABTS */
623 * If the destination ID from the frame header does not match what we
624 * have on record for lport and the search for a NPIV port came up
625 * empty then this is not addressed to our port so simply drop it.
627 if (lport
->port_id
!= ntoh24(fh
->fh_d_id
) && !vn_port
) {
628 BNX2FC_HBA_DBG(lport
, "Dropping frame due to destination mismatch: lport->port_id=%x fh->d_id=%x.\n",
629 lport
->port_id
, ntoh24(fh
->fh_d_id
));
634 stats
= per_cpu_ptr(lport
->stats
, smp_processor_id());
636 stats
->RxWords
+= fr_len
/ FCOE_WORD_TO_BYTE
;
638 if (le32_to_cpu(fr_crc(fp
)) !=
639 ~crc32(~0, skb
->data
, fr_len
)) {
640 if (stats
->InvalidCRCCount
< 5)
641 printk(KERN_WARNING PFX
"dropping frame with "
643 stats
->InvalidCRCCount
++;
647 fc_exch_recv(lport
, fp
);
651 * bnx2fc_percpu_io_thread - thread per cpu for ios
653 * @arg: ptr to bnx2fc_percpu_info structure
655 static int bnx2fc_percpu_io_thread(void *arg
)
657 struct bnx2fc_percpu_s
*p
= arg
;
658 struct bnx2fc_work
*work
, *tmp
;
659 LIST_HEAD(work_list
);
661 set_user_nice(current
, MIN_NICE
);
662 set_current_state(TASK_INTERRUPTIBLE
);
663 while (!kthread_should_stop()) {
665 spin_lock_bh(&p
->fp_work_lock
);
666 while (!list_empty(&p
->work_list
)) {
667 list_splice_init(&p
->work_list
, &work_list
);
668 spin_unlock_bh(&p
->fp_work_lock
);
670 list_for_each_entry_safe(work
, tmp
, &work_list
, list
) {
671 list_del_init(&work
->list
);
672 bnx2fc_process_cq_compl(work
->tgt
, work
->wqe
);
676 spin_lock_bh(&p
->fp_work_lock
);
678 __set_current_state(TASK_INTERRUPTIBLE
);
679 spin_unlock_bh(&p
->fp_work_lock
);
681 __set_current_state(TASK_RUNNING
);
686 static struct fc_host_statistics
*bnx2fc_get_host_stats(struct Scsi_Host
*shost
)
688 struct fc_host_statistics
*bnx2fc_stats
;
689 struct fc_lport
*lport
= shost_priv(shost
);
690 struct fcoe_port
*port
= lport_priv(lport
);
691 struct bnx2fc_interface
*interface
= port
->priv
;
692 struct bnx2fc_hba
*hba
= interface
->hba
;
693 struct fcoe_statistics_params
*fw_stats
;
696 fw_stats
= (struct fcoe_statistics_params
*)hba
->stats_buffer
;
700 mutex_lock(&hba
->hba_stats_mutex
);
702 bnx2fc_stats
= fc_get_host_stats(shost
);
704 init_completion(&hba
->stat_req_done
);
705 if (bnx2fc_send_stat_req(hba
))
706 goto unlock_stats_mutex
;
707 rc
= wait_for_completion_timeout(&hba
->stat_req_done
, (2 * HZ
));
709 BNX2FC_HBA_DBG(lport
, "FW stat req timed out\n");
710 goto unlock_stats_mutex
;
712 BNX2FC_STATS(hba
, rx_stat2
, fc_crc_cnt
);
713 bnx2fc_stats
->invalid_crc_count
+= hba
->bfw_stats
.fc_crc_cnt
;
714 BNX2FC_STATS(hba
, tx_stat
, fcoe_tx_pkt_cnt
);
715 bnx2fc_stats
->tx_frames
+= hba
->bfw_stats
.fcoe_tx_pkt_cnt
;
716 BNX2FC_STATS(hba
, tx_stat
, fcoe_tx_byte_cnt
);
717 bnx2fc_stats
->tx_words
+= ((hba
->bfw_stats
.fcoe_tx_byte_cnt
) / 4);
718 BNX2FC_STATS(hba
, rx_stat0
, fcoe_rx_pkt_cnt
);
719 bnx2fc_stats
->rx_frames
+= hba
->bfw_stats
.fcoe_rx_pkt_cnt
;
720 BNX2FC_STATS(hba
, rx_stat0
, fcoe_rx_byte_cnt
);
721 bnx2fc_stats
->rx_words
+= ((hba
->bfw_stats
.fcoe_rx_byte_cnt
) / 4);
723 bnx2fc_stats
->dumped_frames
= 0;
724 bnx2fc_stats
->lip_count
= 0;
725 bnx2fc_stats
->nos_count
= 0;
726 bnx2fc_stats
->loss_of_sync_count
= 0;
727 bnx2fc_stats
->loss_of_signal_count
= 0;
728 bnx2fc_stats
->prim_seq_protocol_err_count
= 0;
730 memcpy(&hba
->prev_stats
, hba
->stats_buffer
,
731 sizeof(struct fcoe_statistics_params
));
734 mutex_unlock(&hba
->hba_stats_mutex
);
738 static int bnx2fc_shost_config(struct fc_lport
*lport
, struct device
*dev
)
740 struct fcoe_port
*port
= lport_priv(lport
);
741 struct bnx2fc_interface
*interface
= port
->priv
;
742 struct bnx2fc_hba
*hba
= interface
->hba
;
743 struct Scsi_Host
*shost
= lport
->host
;
746 shost
->max_cmd_len
= BNX2FC_MAX_CMD_LEN
;
747 shost
->max_lun
= bnx2fc_max_luns
;
748 shost
->max_id
= BNX2FC_MAX_FCP_TGT
;
749 shost
->max_channel
= 0;
751 shost
->transportt
= bnx2fc_vport_xport_template
;
753 shost
->transportt
= bnx2fc_transport_template
;
755 /* Add the new host to SCSI-ml */
756 rc
= scsi_add_host(lport
->host
, dev
);
758 printk(KERN_ERR PFX
"Error on scsi_add_host\n");
762 fc_host_max_npiv_vports(lport
->host
) = USHRT_MAX
;
763 snprintf(fc_host_symbolic_name(lport
->host
), 256,
764 "%s (QLogic %s) v%s over %s",
765 BNX2FC_NAME
, hba
->chip_num
, BNX2FC_VERSION
,
766 interface
->netdev
->name
);
771 static int bnx2fc_link_ok(struct fc_lport
*lport
)
773 struct fcoe_port
*port
= lport_priv(lport
);
774 struct bnx2fc_interface
*interface
= port
->priv
;
775 struct bnx2fc_hba
*hba
= interface
->hba
;
776 struct net_device
*dev
= hba
->phys_dev
;
779 if ((dev
->flags
& IFF_UP
) && netif_carrier_ok(dev
))
780 clear_bit(ADAPTER_STATE_LINK_DOWN
, &hba
->adapter_state
);
782 set_bit(ADAPTER_STATE_LINK_DOWN
, &hba
->adapter_state
);
789 * bnx2fc_get_link_state - get network link state
791 * @hba: adapter instance pointer
793 * updates adapter structure flag based on netdev state
795 void bnx2fc_get_link_state(struct bnx2fc_hba
*hba
)
797 if (test_bit(__LINK_STATE_NOCARRIER
, &hba
->phys_dev
->state
))
798 set_bit(ADAPTER_STATE_LINK_DOWN
, &hba
->adapter_state
);
800 clear_bit(ADAPTER_STATE_LINK_DOWN
, &hba
->adapter_state
);
803 static int bnx2fc_net_config(struct fc_lport
*lport
, struct net_device
*netdev
)
805 struct bnx2fc_hba
*hba
;
806 struct bnx2fc_interface
*interface
;
807 struct fcoe_ctlr
*ctlr
;
808 struct fcoe_port
*port
;
811 port
= lport_priv(lport
);
812 interface
= port
->priv
;
813 ctlr
= bnx2fc_to_ctlr(interface
);
814 hba
= interface
->hba
;
816 /* require support for get_pauseparam ethtool op. */
817 if (!hba
->phys_dev
->ethtool_ops
||
818 !hba
->phys_dev
->ethtool_ops
->get_pauseparam
)
821 if (fc_set_mfs(lport
, BNX2FC_MFS
))
824 skb_queue_head_init(&port
->fcoe_pending_queue
);
825 port
->fcoe_pending_queue_active
= 0;
826 setup_timer(&port
->timer
, fcoe_queue_timer
, (unsigned long) lport
);
828 fcoe_link_speed_update(lport
);
831 if (fcoe_get_wwn(netdev
, &wwnn
, NETDEV_FCOE_WWNN
))
832 wwnn
= fcoe_wwn_from_mac(ctlr
->ctl_src_addr
,
834 BNX2FC_HBA_DBG(lport
, "WWNN = 0x%llx\n", wwnn
);
835 fc_set_wwnn(lport
, wwnn
);
837 if (fcoe_get_wwn(netdev
, &wwpn
, NETDEV_FCOE_WWPN
))
838 wwpn
= fcoe_wwn_from_mac(ctlr
->ctl_src_addr
,
841 BNX2FC_HBA_DBG(lport
, "WWPN = 0x%llx\n", wwpn
);
842 fc_set_wwpn(lport
, wwpn
);
848 static void bnx2fc_destroy_timer(unsigned long data
)
850 struct bnx2fc_hba
*hba
= (struct bnx2fc_hba
*)data
;
852 printk(KERN_ERR PFX
"ERROR:bnx2fc_destroy_timer - "
853 "Destroy compl not received!!\n");
854 set_bit(BNX2FC_FLAG_DESTROY_CMPL
, &hba
->flags
);
855 wake_up_interruptible(&hba
->destroy_wait
);
859 * bnx2fc_indicate_netevent - Generic netdev event handler
861 * @context: adapter structure pointer
863 * @vlan_id: vlan id - associated vlan id with this event
865 * Handles NETDEV_UP, NETDEV_DOWN, NETDEV_GOING_DOWN,NETDEV_CHANGE and
866 * NETDEV_CHANGE_MTU events. Handle NETDEV_UNREGISTER only for vlans.
868 static void bnx2fc_indicate_netevent(void *context
, unsigned long event
,
871 struct bnx2fc_hba
*hba
= (struct bnx2fc_hba
*)context
;
872 struct fcoe_ctlr_device
*cdev
;
873 struct fc_lport
*lport
;
874 struct fc_lport
*vport
;
875 struct bnx2fc_interface
*interface
, *tmp
;
876 struct fcoe_ctlr
*ctlr
;
877 int wait_for_upload
= 0;
878 u32 link_possible
= 1;
880 if (vlan_id
!= 0 && event
!= NETDEV_UNREGISTER
)
885 if (!test_bit(ADAPTER_STATE_UP
, &hba
->adapter_state
))
886 printk(KERN_ERR
"indicate_netevent: "\
887 "hba is not UP!!\n");
891 clear_bit(ADAPTER_STATE_GOING_DOWN
, &hba
->adapter_state
);
892 clear_bit(ADAPTER_STATE_UP
, &hba
->adapter_state
);
896 case NETDEV_GOING_DOWN
:
897 set_bit(ADAPTER_STATE_GOING_DOWN
, &hba
->adapter_state
);
904 case NETDEV_UNREGISTER
:
907 mutex_lock(&bnx2fc_dev_lock
);
908 list_for_each_entry_safe(interface
, tmp
, &if_list
, list
) {
909 if (interface
->hba
== hba
&&
910 interface
->vlan_id
== (vlan_id
& VLAN_VID_MASK
))
911 __bnx2fc_destroy(interface
);
913 mutex_unlock(&bnx2fc_dev_lock
);
915 /* Ensure ALL destroy work has been completed before return */
916 flush_workqueue(bnx2fc_wq
);
923 mutex_lock(&bnx2fc_dev_lock
);
924 list_for_each_entry(interface
, &if_list
, list
) {
926 if (interface
->hba
!= hba
)
929 ctlr
= bnx2fc_to_ctlr(interface
);
931 BNX2FC_HBA_DBG(lport
, "netevent handler - event=%s %ld\n",
932 interface
->netdev
->name
, event
);
934 fcoe_link_speed_update(lport
);
936 cdev
= fcoe_ctlr_to_ctlr_dev(ctlr
);
938 if (link_possible
&& !bnx2fc_link_ok(lport
)) {
939 switch (cdev
->enabled
) {
940 case FCOE_CTLR_DISABLED
:
941 pr_info("Link up while interface is disabled.\n");
943 case FCOE_CTLR_ENABLED
:
944 case FCOE_CTLR_UNUSED
:
945 /* Reset max recv frame size to default */
946 fc_set_mfs(lport
, BNX2FC_MFS
);
948 * ctlr link up will only be handled during
949 * enable to avoid sending discovery
950 * solicitation on a stale vlan
952 if (interface
->enabled
)
953 fcoe_ctlr_link_up(ctlr
);
955 } else if (fcoe_ctlr_link_down(ctlr
)) {
956 switch (cdev
->enabled
) {
957 case FCOE_CTLR_DISABLED
:
958 pr_info("Link down while interface is disabled.\n");
960 case FCOE_CTLR_ENABLED
:
961 case FCOE_CTLR_UNUSED
:
962 mutex_lock(&lport
->lp_mutex
);
963 list_for_each_entry(vport
, &lport
->vports
, list
)
964 fc_host_port_type(vport
->host
) =
966 mutex_unlock(&lport
->lp_mutex
);
967 fc_host_port_type(lport
->host
) =
969 per_cpu_ptr(lport
->stats
,
970 get_cpu())->LinkFailureCount
++;
972 fcoe_clean_pending_queue(lport
);
977 mutex_unlock(&bnx2fc_dev_lock
);
979 if (wait_for_upload
) {
980 clear_bit(ADAPTER_STATE_READY
, &hba
->adapter_state
);
981 init_waitqueue_head(&hba
->shutdown_wait
);
982 BNX2FC_MISC_DBG("indicate_netevent "
983 "num_ofld_sess = %d\n",
985 hba
->wait_for_link_down
= 1;
986 wait_event_interruptible(hba
->shutdown_wait
,
987 (hba
->num_ofld_sess
== 0));
988 BNX2FC_MISC_DBG("wakeup - num_ofld_sess = %d\n",
990 hba
->wait_for_link_down
= 0;
992 if (signal_pending(current
))
993 flush_signals(current
);
997 static int bnx2fc_libfc_config(struct fc_lport
*lport
)
1000 /* Set the function pointers set by bnx2fc driver */
1001 memcpy(&lport
->tt
, &bnx2fc_libfc_fcn_templ
,
1002 sizeof(struct libfc_function_template
));
1003 fc_elsct_init(lport
);
1004 fc_exch_init(lport
);
1005 fc_disc_init(lport
);
1006 fc_disc_config(lport
, lport
);
1010 static int bnx2fc_em_config(struct fc_lport
*lport
, struct bnx2fc_hba
*hba
)
1012 int fcoe_min_xid
, fcoe_max_xid
;
1014 fcoe_min_xid
= hba
->max_xid
+ 1;
1015 if (nr_cpu_ids
<= 2)
1016 fcoe_max_xid
= hba
->max_xid
+ FCOE_XIDS_PER_CPU_OFFSET
;
1018 fcoe_max_xid
= hba
->max_xid
+ FCOE_MAX_XID_OFFSET
;
1019 if (!fc_exch_mgr_alloc(lport
, FC_CLASS_3
, fcoe_min_xid
,
1020 fcoe_max_xid
, NULL
)) {
1021 printk(KERN_ERR PFX
"em_config:fc_exch_mgr_alloc failed\n");
1028 static int bnx2fc_lport_config(struct fc_lport
*lport
)
1032 lport
->max_retry_count
= BNX2FC_MAX_RETRY_CNT
;
1033 lport
->max_rport_retry_count
= BNX2FC_MAX_RPORT_RETRY_CNT
;
1034 lport
->e_d_tov
= 2 * 1000;
1035 lport
->r_a_tov
= 10 * 1000;
1037 lport
->service_params
= (FCP_SPPF_INIT_FCN
| FCP_SPPF_RD_XRDY_DIS
|
1038 FCP_SPPF_RETRY
| FCP_SPPF_CONF_COMPL
);
1039 lport
->does_npiv
= 1;
1041 memset(&lport
->rnid_gen
, 0, sizeof(struct fc_els_rnid_gen
));
1042 lport
->rnid_gen
.rnid_atype
= BNX2FC_RNID_HBA
;
1044 /* alloc stats structure */
1045 if (fc_lport_init_stats(lport
))
1048 /* Finish fc_lport configuration */
1049 fc_lport_config(lport
);
1055 * bnx2fc_fip_recv - handle a received FIP frame.
1057 * @skb: the received skb
1058 * @dev: associated &net_device
1059 * @ptype: the &packet_type structure which was used to register this handler.
1060 * @orig_dev: original receive &net_device, in case @ dev is a bond.
1062 * Returns: 0 for success
1064 static int bnx2fc_fip_recv(struct sk_buff
*skb
, struct net_device
*dev
,
1065 struct packet_type
*ptype
,
1066 struct net_device
*orig_dev
)
1068 struct bnx2fc_interface
*interface
;
1069 struct fcoe_ctlr
*ctlr
;
1070 interface
= container_of(ptype
, struct bnx2fc_interface
,
1072 ctlr
= bnx2fc_to_ctlr(interface
);
1073 fcoe_ctlr_recv(ctlr
, skb
);
1078 * bnx2fc_update_src_mac - Update Ethernet MAC filters.
1080 * @fip: FCoE controller.
1081 * @old: Unicast MAC address to delete if the MAC is non-zero.
1082 * @new: Unicast MAC address to add.
1084 * Remove any previously-set unicast MAC filter.
1085 * Add secondary FCoE MAC address filter for our OUI.
1087 static void bnx2fc_update_src_mac(struct fc_lport
*lport
, u8
*addr
)
1089 struct fcoe_port
*port
= lport_priv(lport
);
1091 memcpy(port
->data_src_addr
, addr
, ETH_ALEN
);
1095 * bnx2fc_get_src_mac - return the ethernet source address for an lport
1097 * @lport: libfc port
1099 static u8
*bnx2fc_get_src_mac(struct fc_lport
*lport
)
1101 struct fcoe_port
*port
;
1103 port
= (struct fcoe_port
*)lport_priv(lport
);
1104 return port
->data_src_addr
;
1108 * bnx2fc_fip_send - send an Ethernet-encapsulated FIP frame.
1110 * @fip: FCoE controller.
1113 static void bnx2fc_fip_send(struct fcoe_ctlr
*fip
, struct sk_buff
*skb
)
1115 struct fip_header
*fiph
;
1116 struct ethhdr
*eth_hdr
;
1120 fiph
= (struct fip_header
*) ((void *)skb
->data
+ 2 * ETH_ALEN
+ 2);
1121 eth_hdr
= (struct ethhdr
*)skb_mac_header(skb
);
1122 op
= ntohs(fiph
->fip_op
);
1123 sub
= fiph
->fip_subcode
;
1125 if (op
== FIP_OP_CTRL
&& sub
== FIP_SC_SOL
&& bnx2fc_log_fka
)
1126 BNX2FC_MISC_DBG("Sending FKA from %pM to %pM.\n",
1127 eth_hdr
->h_source
, eth_hdr
->h_dest
);
1129 skb
->dev
= bnx2fc_from_ctlr(fip
)->netdev
;
1130 dev_queue_xmit(skb
);
1133 static int bnx2fc_vport_create(struct fc_vport
*vport
, bool disabled
)
1135 struct Scsi_Host
*shost
= vport_to_shost(vport
);
1136 struct fc_lport
*n_port
= shost_priv(shost
);
1137 struct fcoe_port
*port
= lport_priv(n_port
);
1138 struct bnx2fc_interface
*interface
= port
->priv
;
1139 struct net_device
*netdev
= interface
->netdev
;
1140 struct fc_lport
*vn_port
;
1144 rc
= fcoe_validate_vport_create(vport
);
1146 fcoe_wwn_to_str(vport
->port_name
, buf
, sizeof(buf
));
1147 printk(KERN_ERR PFX
"Failed to create vport, "
1148 "WWPN (0x%s) already exists\n",
1153 if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE
, &interface
->hba
->flags
)) {
1154 printk(KERN_ERR PFX
"vn ports cannot be created on"
1155 "this interface\n");
1159 mutex_lock(&bnx2fc_dev_lock
);
1160 vn_port
= bnx2fc_if_create(interface
, &vport
->dev
, 1);
1161 mutex_unlock(&bnx2fc_dev_lock
);
1165 printk(KERN_ERR PFX
"bnx2fc_vport_create (%s) failed\n",
1170 if (bnx2fc_devloss_tmo
)
1171 fc_host_dev_loss_tmo(vn_port
->host
) = bnx2fc_devloss_tmo
;
1174 fc_vport_set_state(vport
, FC_VPORT_DISABLED
);
1176 vn_port
->boot_time
= jiffies
;
1177 fc_lport_init(vn_port
);
1178 fc_fabric_login(vn_port
);
1179 fc_vport_setlink(vn_port
);
1184 static void bnx2fc_free_vport(struct bnx2fc_hba
*hba
, struct fc_lport
*lport
)
1186 struct bnx2fc_lport
*blport
, *tmp
;
1188 spin_lock_bh(&hba
->hba_lock
);
1189 list_for_each_entry_safe(blport
, tmp
, &hba
->vports
, list
) {
1190 if (blport
->lport
== lport
) {
1191 list_del(&blport
->list
);
1195 spin_unlock_bh(&hba
->hba_lock
);
1198 static int bnx2fc_vport_destroy(struct fc_vport
*vport
)
1200 struct Scsi_Host
*shost
= vport_to_shost(vport
);
1201 struct fc_lport
*n_port
= shost_priv(shost
);
1202 struct fc_lport
*vn_port
= vport
->dd_data
;
1203 struct fcoe_port
*port
= lport_priv(vn_port
);
1204 struct bnx2fc_interface
*interface
= port
->priv
;
1205 struct fc_lport
*v_port
;
1208 mutex_lock(&n_port
->lp_mutex
);
1209 list_for_each_entry(v_port
, &n_port
->vports
, list
)
1210 if (v_port
->vport
== vport
) {
1216 mutex_unlock(&n_port
->lp_mutex
);
1219 list_del(&vn_port
->list
);
1220 mutex_unlock(&n_port
->lp_mutex
);
1221 bnx2fc_free_vport(interface
->hba
, port
->lport
);
1222 bnx2fc_port_shutdown(port
->lport
);
1223 bnx2fc_interface_put(interface
);
1224 queue_work(bnx2fc_wq
, &port
->destroy_work
);
1228 static int bnx2fc_vport_disable(struct fc_vport
*vport
, bool disable
)
1230 struct fc_lport
*lport
= vport
->dd_data
;
1233 fc_vport_set_state(vport
, FC_VPORT_DISABLED
);
1234 fc_fabric_logoff(lport
);
1236 lport
->boot_time
= jiffies
;
1237 fc_fabric_login(lport
);
1238 fc_vport_setlink(lport
);
1244 static int bnx2fc_interface_setup(struct bnx2fc_interface
*interface
)
1246 struct net_device
*netdev
= interface
->netdev
;
1247 struct net_device
*physdev
= interface
->hba
->phys_dev
;
1248 struct fcoe_ctlr
*ctlr
= bnx2fc_to_ctlr(interface
);
1249 struct netdev_hw_addr
*ha
;
1250 int sel_san_mac
= 0;
1252 /* setup Source MAC Address */
1254 for_each_dev_addr(physdev
, ha
) {
1255 BNX2FC_MISC_DBG("net_config: ha->type = %d, fip_mac = ",
1257 printk(KERN_INFO
"%2x:%2x:%2x:%2x:%2x:%2x\n", ha
->addr
[0],
1258 ha
->addr
[1], ha
->addr
[2], ha
->addr
[3],
1259 ha
->addr
[4], ha
->addr
[5]);
1261 if ((ha
->type
== NETDEV_HW_ADDR_T_SAN
) &&
1262 (is_valid_ether_addr(ha
->addr
))) {
1263 memcpy(ctlr
->ctl_src_addr
, ha
->addr
,
1266 BNX2FC_MISC_DBG("Found SAN MAC\n");
1274 interface
->fip_packet_type
.func
= bnx2fc_fip_recv
;
1275 interface
->fip_packet_type
.type
= htons(ETH_P_FIP
);
1276 interface
->fip_packet_type
.dev
= netdev
;
1277 dev_add_pack(&interface
->fip_packet_type
);
1279 interface
->fcoe_packet_type
.func
= bnx2fc_rcv
;
1280 interface
->fcoe_packet_type
.type
= __constant_htons(ETH_P_FCOE
);
1281 interface
->fcoe_packet_type
.dev
= netdev
;
1282 dev_add_pack(&interface
->fcoe_packet_type
);
1287 static int bnx2fc_attach_transport(void)
1289 bnx2fc_transport_template
=
1290 fc_attach_transport(&bnx2fc_transport_function
);
1292 if (bnx2fc_transport_template
== NULL
) {
1293 printk(KERN_ERR PFX
"Failed to attach FC transport\n");
1297 bnx2fc_vport_xport_template
=
1298 fc_attach_transport(&bnx2fc_vport_xport_function
);
1299 if (bnx2fc_vport_xport_template
== NULL
) {
1301 "Failed to attach FC transport for vport\n");
1302 fc_release_transport(bnx2fc_transport_template
);
1303 bnx2fc_transport_template
= NULL
;
1308 static void bnx2fc_release_transport(void)
1310 fc_release_transport(bnx2fc_transport_template
);
1311 fc_release_transport(bnx2fc_vport_xport_template
);
1312 bnx2fc_transport_template
= NULL
;
1313 bnx2fc_vport_xport_template
= NULL
;
1316 static void bnx2fc_interface_release(struct kref
*kref
)
1318 struct fcoe_ctlr_device
*ctlr_dev
;
1319 struct bnx2fc_interface
*interface
;
1320 struct fcoe_ctlr
*ctlr
;
1321 struct net_device
*netdev
;
1323 interface
= container_of(kref
, struct bnx2fc_interface
, kref
);
1324 BNX2FC_MISC_DBG("Interface is being released\n");
1326 ctlr
= bnx2fc_to_ctlr(interface
);
1327 ctlr_dev
= fcoe_ctlr_to_ctlr_dev(ctlr
);
1328 netdev
= interface
->netdev
;
1330 /* tear-down FIP controller */
1331 if (test_and_clear_bit(BNX2FC_CTLR_INIT_DONE
, &interface
->if_flags
))
1332 fcoe_ctlr_destroy(ctlr
);
1334 fcoe_ctlr_device_delete(ctlr_dev
);
1337 module_put(THIS_MODULE
);
1340 static inline void bnx2fc_interface_get(struct bnx2fc_interface
*interface
)
1342 kref_get(&interface
->kref
);
1345 static inline void bnx2fc_interface_put(struct bnx2fc_interface
*interface
)
1347 kref_put(&interface
->kref
, bnx2fc_interface_release
);
1349 static void bnx2fc_hba_destroy(struct bnx2fc_hba
*hba
)
1351 /* Free the command manager */
1353 bnx2fc_cmd_mgr_free(hba
->cmd_mgr
);
1354 hba
->cmd_mgr
= NULL
;
1356 kfree(hba
->tgt_ofld_list
);
1357 bnx2fc_unbind_pcidev(hba
);
1362 * bnx2fc_hba_create - create a new bnx2fc hba
1364 * @cnic: pointer to cnic device
1366 * Creates a new FCoE hba on the given device.
1369 static struct bnx2fc_hba
*bnx2fc_hba_create(struct cnic_dev
*cnic
)
1371 struct bnx2fc_hba
*hba
;
1372 struct fcoe_capabilities
*fcoe_cap
;
1375 hba
= kzalloc(sizeof(*hba
), GFP_KERNEL
);
1377 printk(KERN_ERR PFX
"Unable to allocate hba structure\n");
1380 spin_lock_init(&hba
->hba_lock
);
1381 mutex_init(&hba
->hba_mutex
);
1382 mutex_init(&hba
->hba_stats_mutex
);
1386 hba
->max_tasks
= cnic
->max_fcoe_exchanges
;
1387 hba
->elstm_xids
= (hba
->max_tasks
/ 2);
1388 hba
->max_outstanding_cmds
= hba
->elstm_xids
;
1389 hba
->max_xid
= (hba
->max_tasks
- 1);
1391 rc
= bnx2fc_bind_pcidev(hba
);
1393 printk(KERN_ERR PFX
"create_adapter: bind error\n");
1396 hba
->phys_dev
= cnic
->netdev
;
1397 hba
->next_conn_id
= 0;
1399 hba
->tgt_ofld_list
=
1400 kzalloc(sizeof(struct bnx2fc_rport
*) * BNX2FC_NUM_MAX_SESS
,
1402 if (!hba
->tgt_ofld_list
) {
1403 printk(KERN_ERR PFX
"Unable to allocate tgt offload list\n");
1407 hba
->num_ofld_sess
= 0;
1409 hba
->cmd_mgr
= bnx2fc_cmd_mgr_alloc(hba
);
1410 if (!hba
->cmd_mgr
) {
1411 printk(KERN_ERR PFX
"em_config:bnx2fc_cmd_mgr_alloc failed\n");
1414 fcoe_cap
= &hba
->fcoe_cap
;
1416 fcoe_cap
->capability1
= BNX2FC_TM_MAX_SQES
<<
1417 FCOE_IOS_PER_CONNECTION_SHIFT
;
1418 fcoe_cap
->capability1
|= BNX2FC_NUM_MAX_SESS
<<
1419 FCOE_LOGINS_PER_PORT_SHIFT
;
1420 fcoe_cap
->capability2
= hba
->max_outstanding_cmds
<<
1421 FCOE_NUMBER_OF_EXCHANGES_SHIFT
;
1422 fcoe_cap
->capability2
|= BNX2FC_MAX_NPIV
<<
1423 FCOE_NPIV_WWN_PER_PORT_SHIFT
;
1424 fcoe_cap
->capability3
= BNX2FC_NUM_MAX_SESS
<<
1425 FCOE_TARGETS_SUPPORTED_SHIFT
;
1426 fcoe_cap
->capability3
|= hba
->max_outstanding_cmds
<<
1427 FCOE_OUTSTANDING_COMMANDS_SHIFT
;
1428 fcoe_cap
->capability4
= FCOE_CAPABILITY4_STATEFUL
;
1430 init_waitqueue_head(&hba
->shutdown_wait
);
1431 init_waitqueue_head(&hba
->destroy_wait
);
1432 INIT_LIST_HEAD(&hba
->vports
);
1437 kfree(hba
->tgt_ofld_list
);
1439 bnx2fc_unbind_pcidev(hba
);
1445 static struct bnx2fc_interface
*
1446 bnx2fc_interface_create(struct bnx2fc_hba
*hba
,
1447 struct net_device
*netdev
,
1448 enum fip_state fip_mode
)
1450 struct fcoe_ctlr_device
*ctlr_dev
;
1451 struct bnx2fc_interface
*interface
;
1452 struct fcoe_ctlr
*ctlr
;
1456 size
= (sizeof(*interface
) + sizeof(struct fcoe_ctlr
));
1457 ctlr_dev
= fcoe_ctlr_device_add(&netdev
->dev
, &bnx2fc_fcoe_sysfs_templ
,
1460 printk(KERN_ERR PFX
"Unable to allocate interface structure\n");
1463 ctlr
= fcoe_ctlr_device_priv(ctlr_dev
);
1464 ctlr
->cdev
= ctlr_dev
;
1465 interface
= fcoe_ctlr_priv(ctlr
);
1467 kref_init(&interface
->kref
);
1468 interface
->hba
= hba
;
1469 interface
->netdev
= netdev
;
1471 /* Initialize FIP */
1472 fcoe_ctlr_init(ctlr
, fip_mode
);
1473 ctlr
->send
= bnx2fc_fip_send
;
1474 ctlr
->update_mac
= bnx2fc_update_src_mac
;
1475 ctlr
->get_src_addr
= bnx2fc_get_src_mac
;
1476 set_bit(BNX2FC_CTLR_INIT_DONE
, &interface
->if_flags
);
1478 rc
= bnx2fc_interface_setup(interface
);
1482 fcoe_ctlr_destroy(ctlr
);
1484 fcoe_ctlr_device_delete(ctlr_dev
);
1489 * bnx2fc_if_create - Create FCoE instance on a given interface
1491 * @interface: FCoE interface to create a local port on
1492 * @parent: Device pointer to be the parent in sysfs for the SCSI host
1493 * @npiv: Indicates if the port is vport or not
1495 * Creates a fc_lport instance and a Scsi_Host instance and configure them.
1497 * Returns: Allocated fc_lport or an error pointer
1499 static struct fc_lport
*bnx2fc_if_create(struct bnx2fc_interface
*interface
,
1500 struct device
*parent
, int npiv
)
1502 struct fcoe_ctlr
*ctlr
= bnx2fc_to_ctlr(interface
);
1503 struct fc_lport
*lport
, *n_port
;
1504 struct fcoe_port
*port
;
1505 struct Scsi_Host
*shost
;
1506 struct fc_vport
*vport
= dev_to_vport(parent
);
1507 struct bnx2fc_lport
*blport
;
1508 struct bnx2fc_hba
*hba
= interface
->hba
;
1511 blport
= kzalloc(sizeof(struct bnx2fc_lport
), GFP_KERNEL
);
1513 BNX2FC_HBA_DBG(ctlr
->lp
, "Unable to alloc blport\n");
1517 /* Allocate Scsi_Host structure */
1518 bnx2fc_shost_template
.can_queue
= hba
->max_outstanding_cmds
;
1520 lport
= libfc_host_alloc(&bnx2fc_shost_template
, sizeof(*port
));
1522 lport
= libfc_vport_create(vport
, sizeof(*port
));
1525 printk(KERN_ERR PFX
"could not allocate scsi host structure\n");
1528 shost
= lport
->host
;
1529 port
= lport_priv(lport
);
1530 port
->lport
= lport
;
1531 port
->priv
= interface
;
1532 port
->get_netdev
= bnx2fc_netdev
;
1533 INIT_WORK(&port
->destroy_work
, bnx2fc_destroy_work
);
1535 /* Configure fcoe_port */
1536 rc
= bnx2fc_lport_config(lport
);
1541 printk(KERN_ERR PFX
"Setting vport names, 0x%llX 0x%llX\n",
1542 vport
->node_name
, vport
->port_name
);
1543 fc_set_wwnn(lport
, vport
->node_name
);
1544 fc_set_wwpn(lport
, vport
->port_name
);
1546 /* Configure netdev and networking properties of the lport */
1547 rc
= bnx2fc_net_config(lport
, interface
->netdev
);
1549 printk(KERN_ERR PFX
"Error on bnx2fc_net_config\n");
1553 rc
= bnx2fc_shost_config(lport
, parent
);
1555 printk(KERN_ERR PFX
"Couldnt configure shost for %s\n",
1556 interface
->netdev
->name
);
1560 /* Initialize the libfc library */
1561 rc
= bnx2fc_libfc_config(lport
);
1563 printk(KERN_ERR PFX
"Couldnt configure libfc\n");
1566 fc_host_port_type(lport
->host
) = FC_PORTTYPE_UNKNOWN
;
1568 if (bnx2fc_devloss_tmo
)
1569 fc_host_dev_loss_tmo(shost
) = bnx2fc_devloss_tmo
;
1571 /* Allocate exchange manager */
1573 rc
= bnx2fc_em_config(lport
, hba
);
1575 shost
= vport_to_shost(vport
);
1576 n_port
= shost_priv(shost
);
1577 rc
= fc_exch_mgr_list_clone(n_port
, lport
);
1581 printk(KERN_ERR PFX
"Error on bnx2fc_em_config\n");
1585 bnx2fc_interface_get(interface
);
1587 spin_lock_bh(&hba
->hba_lock
);
1588 blport
->lport
= lport
;
1589 list_add_tail(&blport
->list
, &hba
->vports
);
1590 spin_unlock_bh(&hba
->hba_lock
);
1595 scsi_remove_host(shost
);
1597 scsi_host_put(lport
->host
);
1603 static void bnx2fc_net_cleanup(struct bnx2fc_interface
*interface
)
1605 /* Dont listen for Ethernet packets anymore */
1606 __dev_remove_pack(&interface
->fcoe_packet_type
);
1607 __dev_remove_pack(&interface
->fip_packet_type
);
1611 static void bnx2fc_interface_cleanup(struct bnx2fc_interface
*interface
)
1613 struct fcoe_ctlr
*ctlr
= bnx2fc_to_ctlr(interface
);
1614 struct fc_lport
*lport
= ctlr
->lp
;
1615 struct fcoe_port
*port
= lport_priv(lport
);
1616 struct bnx2fc_hba
*hba
= interface
->hba
;
1618 /* Stop the transmit retry timer */
1619 del_timer_sync(&port
->timer
);
1621 /* Free existing transmit skbs */
1622 fcoe_clean_pending_queue(lport
);
1624 bnx2fc_net_cleanup(interface
);
1626 bnx2fc_free_vport(hba
, lport
);
1629 static void bnx2fc_if_destroy(struct fc_lport
*lport
)
1632 /* Free queued packets for the receive thread */
1633 bnx2fc_clean_rx_queue(lport
);
1635 /* Detach from scsi-ml */
1636 fc_remove_host(lport
->host
);
1637 scsi_remove_host(lport
->host
);
1640 * Note that only the physical lport will have the exchange manager.
1641 * for vports, this function is NOP
1643 fc_exch_mgr_free(lport
);
1645 /* Free memory used by statistical counters */
1646 fc_lport_free_stats(lport
);
1648 /* Release Scsi_Host */
1649 scsi_host_put(lport
->host
);
1652 static void __bnx2fc_destroy(struct bnx2fc_interface
*interface
)
1654 struct fcoe_ctlr
*ctlr
= bnx2fc_to_ctlr(interface
);
1655 struct fc_lport
*lport
= ctlr
->lp
;
1656 struct fcoe_port
*port
= lport_priv(lport
);
1658 bnx2fc_interface_cleanup(interface
);
1659 bnx2fc_stop(interface
);
1660 list_del(&interface
->list
);
1661 bnx2fc_interface_put(interface
);
1662 queue_work(bnx2fc_wq
, &port
->destroy_work
);
1666 * bnx2fc_destroy - Destroy a bnx2fc FCoE interface
1668 * @buffer: The name of the Ethernet interface to be destroyed
1669 * @kp: The associated kernel parameter
1671 * Called from sysfs.
1673 * Returns: 0 for success
1675 static int bnx2fc_destroy(struct net_device
*netdev
)
1677 struct bnx2fc_interface
*interface
= NULL
;
1678 struct workqueue_struct
*timer_work_queue
;
1679 struct fcoe_ctlr
*ctlr
;
1683 mutex_lock(&bnx2fc_dev_lock
);
1685 interface
= bnx2fc_interface_lookup(netdev
);
1686 ctlr
= bnx2fc_to_ctlr(interface
);
1687 if (!interface
|| !ctlr
->lp
) {
1689 printk(KERN_ERR PFX
"bnx2fc_destroy: interface or lport not found\n");
1693 timer_work_queue
= interface
->timer_work_queue
;
1694 __bnx2fc_destroy(interface
);
1695 destroy_workqueue(timer_work_queue
);
1698 mutex_unlock(&bnx2fc_dev_lock
);
1703 static void bnx2fc_destroy_work(struct work_struct
*work
)
1705 struct fcoe_port
*port
;
1706 struct fc_lport
*lport
;
1708 port
= container_of(work
, struct fcoe_port
, destroy_work
);
1709 lport
= port
->lport
;
1711 BNX2FC_HBA_DBG(lport
, "Entered bnx2fc_destroy_work\n");
1713 bnx2fc_if_destroy(lport
);
1716 static void bnx2fc_unbind_adapter_devices(struct bnx2fc_hba
*hba
)
1718 bnx2fc_free_fw_resc(hba
);
1719 bnx2fc_free_task_ctx(hba
);
1723 * bnx2fc_bind_adapter_devices - binds bnx2fc adapter with the associated
1726 * @hba: Adapter instance
1728 static int bnx2fc_bind_adapter_devices(struct bnx2fc_hba
*hba
)
1730 if (bnx2fc_setup_task_ctx(hba
))
1733 if (bnx2fc_setup_fw_resc(hba
))
1738 bnx2fc_unbind_adapter_devices(hba
);
1742 static int bnx2fc_bind_pcidev(struct bnx2fc_hba
*hba
)
1744 struct cnic_dev
*cnic
;
1745 struct pci_dev
*pdev
;
1748 printk(KERN_ERR PFX
"cnic is NULL\n");
1752 pdev
= hba
->pcidev
= cnic
->pcidev
;
1756 switch (pdev
->device
) {
1757 case PCI_DEVICE_ID_NX2_57710
:
1758 strncpy(hba
->chip_num
, "BCM57710", BCM_CHIP_LEN
);
1760 case PCI_DEVICE_ID_NX2_57711
:
1761 strncpy(hba
->chip_num
, "BCM57711", BCM_CHIP_LEN
);
1763 case PCI_DEVICE_ID_NX2_57712
:
1764 case PCI_DEVICE_ID_NX2_57712_MF
:
1765 case PCI_DEVICE_ID_NX2_57712_VF
:
1766 strncpy(hba
->chip_num
, "BCM57712", BCM_CHIP_LEN
);
1768 case PCI_DEVICE_ID_NX2_57800
:
1769 case PCI_DEVICE_ID_NX2_57800_MF
:
1770 case PCI_DEVICE_ID_NX2_57800_VF
:
1771 strncpy(hba
->chip_num
, "BCM57800", BCM_CHIP_LEN
);
1773 case PCI_DEVICE_ID_NX2_57810
:
1774 case PCI_DEVICE_ID_NX2_57810_MF
:
1775 case PCI_DEVICE_ID_NX2_57810_VF
:
1776 strncpy(hba
->chip_num
, "BCM57810", BCM_CHIP_LEN
);
1778 case PCI_DEVICE_ID_NX2_57840
:
1779 case PCI_DEVICE_ID_NX2_57840_MF
:
1780 case PCI_DEVICE_ID_NX2_57840_VF
:
1781 case PCI_DEVICE_ID_NX2_57840_2_20
:
1782 case PCI_DEVICE_ID_NX2_57840_4_10
:
1783 strncpy(hba
->chip_num
, "BCM57840", BCM_CHIP_LEN
);
1786 pr_err(PFX
"Unknown device id 0x%x\n", pdev
->device
);
1789 pci_dev_get(hba
->pcidev
);
1793 static void bnx2fc_unbind_pcidev(struct bnx2fc_hba
*hba
)
1796 hba
->chip_num
[0] = '\0';
1797 pci_dev_put(hba
->pcidev
);
1803 * bnx2fc_ulp_get_stats - cnic callback to populate FCoE stats
1805 * @handle: transport handle pointing to adapter struture
1807 static int bnx2fc_ulp_get_stats(void *handle
)
1809 struct bnx2fc_hba
*hba
= handle
;
1810 struct cnic_dev
*cnic
;
1811 struct fcoe_stats_info
*stats_addr
;
1817 stats_addr
= &cnic
->stats_addr
->fcoe_stat
;
1821 strncpy(stats_addr
->version
, BNX2FC_VERSION
,
1822 sizeof(stats_addr
->version
));
1823 stats_addr
->txq_size
= BNX2FC_SQ_WQES_MAX
;
1824 stats_addr
->rxq_size
= BNX2FC_CQ_WQES_MAX
;
1831 * bnx2fc_ulp_start - cnic callback to initialize & start adapter instance
1833 * @handle: transport handle pointing to adapter structure
1835 * This function maps adapter structure to pcidev structure and initiates
1836 * firmware handshake to enable/initialize on-chip FCoE components.
1837 * This bnx2fc - cnic interface api callback is used after following
1838 * conditions are met -
1839 * a) underlying network interface is up (marked by event NETDEV_UP
1841 * b) bnx2fc adatper structure is registered.
1843 static void bnx2fc_ulp_start(void *handle
)
1845 struct bnx2fc_hba
*hba
= handle
;
1846 struct bnx2fc_interface
*interface
;
1847 struct fcoe_ctlr
*ctlr
;
1848 struct fc_lport
*lport
;
1850 mutex_lock(&bnx2fc_dev_lock
);
1852 if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE
, &hba
->flags
))
1853 bnx2fc_fw_init(hba
);
1855 BNX2FC_MISC_DBG("bnx2fc started.\n");
1857 list_for_each_entry(interface
, &if_list
, list
) {
1858 if (interface
->hba
== hba
) {
1859 ctlr
= bnx2fc_to_ctlr(interface
);
1861 /* Kick off Fabric discovery*/
1862 printk(KERN_ERR PFX
"ulp_init: start discovery\n");
1863 lport
->tt
.frame_send
= bnx2fc_xmit
;
1864 bnx2fc_start_disc(interface
);
1868 mutex_unlock(&bnx2fc_dev_lock
);
1871 static void bnx2fc_port_shutdown(struct fc_lport
*lport
)
1873 BNX2FC_MISC_DBG("Entered %s\n", __func__
);
1874 fc_fabric_logoff(lport
);
1875 fc_lport_destroy(lport
);
1878 static void bnx2fc_stop(struct bnx2fc_interface
*interface
)
1880 struct fcoe_ctlr
*ctlr
= bnx2fc_to_ctlr(interface
);
1881 struct fc_lport
*lport
;
1882 struct fc_lport
*vport
;
1884 if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE
, &interface
->hba
->flags
))
1888 bnx2fc_port_shutdown(lport
);
1890 mutex_lock(&lport
->lp_mutex
);
1891 list_for_each_entry(vport
, &lport
->vports
, list
)
1892 fc_host_port_type(vport
->host
) =
1893 FC_PORTTYPE_UNKNOWN
;
1894 mutex_unlock(&lport
->lp_mutex
);
1895 fc_host_port_type(lport
->host
) = FC_PORTTYPE_UNKNOWN
;
1896 fcoe_ctlr_link_down(ctlr
);
1897 fcoe_clean_pending_queue(lport
);
1900 static int bnx2fc_fw_init(struct bnx2fc_hba
*hba
)
1902 #define BNX2FC_INIT_POLL_TIME (1000 / HZ)
1906 rc
= bnx2fc_bind_adapter_devices(hba
);
1908 printk(KERN_ALERT PFX
1909 "bnx2fc_bind_adapter_devices failed - rc = %d\n", rc
);
1913 rc
= bnx2fc_send_fw_fcoe_init_msg(hba
);
1915 printk(KERN_ALERT PFX
1916 "bnx2fc_send_fw_fcoe_init_msg failed - rc = %d\n", rc
);
1921 * Wait until the adapter init message is complete, and adapter
1924 while (!test_bit(ADAPTER_STATE_UP
, &hba
->adapter_state
) && i
--)
1925 msleep(BNX2FC_INIT_POLL_TIME
);
1927 if (!test_bit(ADAPTER_STATE_UP
, &hba
->adapter_state
)) {
1928 printk(KERN_ERR PFX
"bnx2fc_start: %s failed to initialize. "
1930 hba
->cnic
->netdev
->name
);
1936 set_bit(BNX2FC_FLAG_FW_INIT_DONE
, &hba
->flags
);
1940 bnx2fc_unbind_adapter_devices(hba
);
1945 static void bnx2fc_fw_destroy(struct bnx2fc_hba
*hba
)
1947 if (test_and_clear_bit(BNX2FC_FLAG_FW_INIT_DONE
, &hba
->flags
)) {
1948 if (bnx2fc_send_fw_fcoe_destroy_msg(hba
) == 0) {
1949 init_timer(&hba
->destroy_timer
);
1950 hba
->destroy_timer
.expires
= BNX2FC_FW_TIMEOUT
+
1952 hba
->destroy_timer
.function
= bnx2fc_destroy_timer
;
1953 hba
->destroy_timer
.data
= (unsigned long)hba
;
1954 add_timer(&hba
->destroy_timer
);
1955 wait_event_interruptible(hba
->destroy_wait
,
1956 test_bit(BNX2FC_FLAG_DESTROY_CMPL
,
1958 clear_bit(BNX2FC_FLAG_DESTROY_CMPL
, &hba
->flags
);
1959 /* This should never happen */
1960 if (signal_pending(current
))
1961 flush_signals(current
);
1963 del_timer_sync(&hba
->destroy_timer
);
1965 bnx2fc_unbind_adapter_devices(hba
);
1970 * bnx2fc_ulp_stop - cnic callback to shutdown adapter instance
1972 * @handle: transport handle pointing to adapter structure
1974 * Driver checks if adapter is already in shutdown mode, if not start
1975 * the shutdown process.
1977 static void bnx2fc_ulp_stop(void *handle
)
1979 struct bnx2fc_hba
*hba
= handle
;
1980 struct bnx2fc_interface
*interface
;
1982 printk(KERN_ERR
"ULP_STOP\n");
1984 mutex_lock(&bnx2fc_dev_lock
);
1985 if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE
, &hba
->flags
))
1987 list_for_each_entry(interface
, &if_list
, list
) {
1988 if (interface
->hba
== hba
)
1989 bnx2fc_stop(interface
);
1991 BUG_ON(hba
->num_ofld_sess
!= 0);
1993 mutex_lock(&hba
->hba_mutex
);
1994 clear_bit(ADAPTER_STATE_UP
, &hba
->adapter_state
);
1995 clear_bit(ADAPTER_STATE_GOING_DOWN
,
1996 &hba
->adapter_state
);
1998 clear_bit(ADAPTER_STATE_READY
, &hba
->adapter_state
);
1999 mutex_unlock(&hba
->hba_mutex
);
2001 bnx2fc_fw_destroy(hba
);
2003 mutex_unlock(&bnx2fc_dev_lock
);
2006 static void bnx2fc_start_disc(struct bnx2fc_interface
*interface
)
2008 struct fcoe_ctlr
*ctlr
= bnx2fc_to_ctlr(interface
);
2009 struct fc_lport
*lport
;
2012 BNX2FC_MISC_DBG("Entered %s\n", __func__
);
2013 /* Kick off FIP/FLOGI */
2014 if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE
, &interface
->hba
->flags
)) {
2015 printk(KERN_ERR PFX
"Init not done yet\n");
2020 BNX2FC_HBA_DBG(lport
, "calling fc_fabric_login\n");
2022 if (!bnx2fc_link_ok(lport
) && interface
->enabled
) {
2023 BNX2FC_HBA_DBG(lport
, "ctlr_link_up\n");
2024 fcoe_ctlr_link_up(ctlr
);
2025 fc_host_port_type(lport
->host
) = FC_PORTTYPE_NPORT
;
2026 set_bit(ADAPTER_STATE_READY
, &interface
->hba
->adapter_state
);
2029 /* wait for the FCF to be selected before issuing FLOGI */
2030 while (!ctlr
->sel_fcf
) {
2032 /* give up after 3 secs */
2033 if (++wait_cnt
> 12)
2037 /* Reset max receive frame size to default */
2038 if (fc_set_mfs(lport
, BNX2FC_MFS
))
2041 fc_lport_init(lport
);
2042 fc_fabric_login(lport
);
2047 * bnx2fc_ulp_init - Initialize an adapter instance
2049 * @dev : cnic device handle
2050 * Called from cnic_register_driver() context to initialize all
2051 * enumerated cnic devices. This routine allocates adapter structure
2052 * and other device specific resources.
2054 static void bnx2fc_ulp_init(struct cnic_dev
*dev
)
2056 struct bnx2fc_hba
*hba
;
2059 BNX2FC_MISC_DBG("Entered %s\n", __func__
);
2060 /* bnx2fc works only when bnx2x is loaded */
2061 if (!test_bit(CNIC_F_BNX2X_CLASS
, &dev
->flags
) ||
2062 (dev
->max_fcoe_conn
== 0)) {
2063 printk(KERN_ERR PFX
"bnx2fc FCoE not supported on %s,"
2064 " flags: %lx fcoe_conn: %d\n",
2065 dev
->netdev
->name
, dev
->flags
, dev
->max_fcoe_conn
);
2069 hba
= bnx2fc_hba_create(dev
);
2071 printk(KERN_ERR PFX
"hba initialization failed\n");
2075 pr_info(PFX
"FCoE initialized for %s.\n", dev
->netdev
->name
);
2077 /* Add HBA to the adapter list */
2078 mutex_lock(&bnx2fc_dev_lock
);
2079 list_add_tail(&hba
->list
, &adapter_list
);
2081 mutex_unlock(&bnx2fc_dev_lock
);
2083 dev
->fcoe_cap
= &hba
->fcoe_cap
;
2084 clear_bit(BNX2FC_CNIC_REGISTERED
, &hba
->reg_with_cnic
);
2085 rc
= dev
->register_device(dev
, CNIC_ULP_FCOE
,
2088 printk(KERN_ERR PFX
"register_device failed, rc = %d\n", rc
);
2090 set_bit(BNX2FC_CNIC_REGISTERED
, &hba
->reg_with_cnic
);
2093 /* Assumes rtnl_lock and the bnx2fc_dev_lock are already taken */
2094 static int __bnx2fc_disable(struct fcoe_ctlr
*ctlr
)
2096 struct bnx2fc_interface
*interface
= fcoe_ctlr_priv(ctlr
);
2098 if (interface
->enabled
== true) {
2100 pr_err(PFX
"__bnx2fc_disable: lport not found\n");
2103 interface
->enabled
= false;
2104 fcoe_ctlr_link_down(ctlr
);
2105 fcoe_clean_pending_queue(ctlr
->lp
);
2112 * Deperecated: Use bnx2fc_enabled()
2114 static int bnx2fc_disable(struct net_device
*netdev
)
2116 struct bnx2fc_interface
*interface
;
2117 struct fcoe_ctlr
*ctlr
;
2121 mutex_lock(&bnx2fc_dev_lock
);
2123 interface
= bnx2fc_interface_lookup(netdev
);
2124 ctlr
= bnx2fc_to_ctlr(interface
);
2128 pr_err(PFX
"bnx2fc_disable: interface not found\n");
2130 rc
= __bnx2fc_disable(ctlr
);
2132 mutex_unlock(&bnx2fc_dev_lock
);
2137 static uint
bnx2fc_npiv_create_vports(struct fc_lport
*lport
,
2138 struct cnic_fc_npiv_tbl
*npiv_tbl
)
2140 struct fc_vport_identifiers vpid
;
2141 uint i
, created
= 0;
2143 if (npiv_tbl
->count
> MAX_NPIV_ENTRIES
) {
2144 BNX2FC_HBA_DBG(lport
, "Exceeded count max of npiv table\n");
2148 /* Sanity check the first entry to make sure it's not 0 */
2149 if (wwn_to_u64(npiv_tbl
->wwnn
[0]) == 0 &&
2150 wwn_to_u64(npiv_tbl
->wwpn
[0]) == 0) {
2151 BNX2FC_HBA_DBG(lport
, "First NPIV table entries invalid.\n");
2155 vpid
.roles
= FC_PORT_ROLE_FCP_INITIATOR
;
2156 vpid
.vport_type
= FC_PORTTYPE_NPIV
;
2157 vpid
.disable
= false;
2159 for (i
= 0; i
< npiv_tbl
->count
; i
++) {
2160 vpid
.node_name
= wwn_to_u64(npiv_tbl
->wwnn
[i
]);
2161 vpid
.port_name
= wwn_to_u64(npiv_tbl
->wwpn
[i
]);
2162 scnprintf(vpid
.symbolic_name
, sizeof(vpid
.symbolic_name
),
2163 "NPIV[%u]:%016llx-%016llx",
2164 created
, vpid
.port_name
, vpid
.node_name
);
2165 if (fc_vport_create(lport
->host
, 0, &vpid
))
2168 BNX2FC_HBA_DBG(lport
, "Failed to create vport\n");
2174 static int __bnx2fc_enable(struct fcoe_ctlr
*ctlr
)
2176 struct bnx2fc_interface
*interface
= fcoe_ctlr_priv(ctlr
);
2177 struct bnx2fc_hba
*hba
;
2178 struct cnic_fc_npiv_tbl
*npiv_tbl
;
2179 struct fc_lport
*lport
;
2181 if (interface
->enabled
== false) {
2183 pr_err(PFX
"__bnx2fc_enable: lport not found\n");
2185 } else if (!bnx2fc_link_ok(ctlr
->lp
)) {
2186 fcoe_ctlr_link_up(ctlr
);
2187 interface
->enabled
= true;
2191 /* Create static NPIV ports if any are contained in NVRAM */
2192 hba
= interface
->hba
;
2207 if (!hba
->cnic
->get_fc_npiv_tbl
)
2210 npiv_tbl
= kzalloc(sizeof(struct cnic_fc_npiv_tbl
), GFP_KERNEL
);
2214 if (hba
->cnic
->get_fc_npiv_tbl(hba
->cnic
, npiv_tbl
))
2217 bnx2fc_npiv_create_vports(lport
, npiv_tbl
);
2225 * Deprecated: Use bnx2fc_enabled()
2227 static int bnx2fc_enable(struct net_device
*netdev
)
2229 struct bnx2fc_interface
*interface
;
2230 struct fcoe_ctlr
*ctlr
;
2234 mutex_lock(&bnx2fc_dev_lock
);
2236 interface
= bnx2fc_interface_lookup(netdev
);
2237 ctlr
= bnx2fc_to_ctlr(interface
);
2240 pr_err(PFX
"bnx2fc_enable: interface not found\n");
2242 rc
= __bnx2fc_enable(ctlr
);
2245 mutex_unlock(&bnx2fc_dev_lock
);
2251 * bnx2fc_ctlr_enabled() - Enable or disable an FCoE Controller
2252 * @cdev: The FCoE Controller that is being enabled or disabled
2254 * fcoe_sysfs will ensure that the state of 'enabled' has
2255 * changed, so no checking is necessary here. This routine simply
2256 * calls fcoe_enable or fcoe_disable, both of which are deprecated.
2257 * When those routines are removed the functionality can be merged
2260 static int bnx2fc_ctlr_enabled(struct fcoe_ctlr_device
*cdev
)
2262 struct fcoe_ctlr
*ctlr
= fcoe_ctlr_device_priv(cdev
);
2264 switch (cdev
->enabled
) {
2265 case FCOE_CTLR_ENABLED
:
2266 return __bnx2fc_enable(ctlr
);
2267 case FCOE_CTLR_DISABLED
:
2268 return __bnx2fc_disable(ctlr
);
2269 case FCOE_CTLR_UNUSED
:
2275 enum bnx2fc_create_link_state
{
2276 BNX2FC_CREATE_LINK_DOWN
,
2277 BNX2FC_CREATE_LINK_UP
,
2281 * _bnx2fc_create() - Create bnx2fc FCoE interface
2282 * @netdev : The net_device object the Ethernet interface to create on
2283 * @fip_mode: The FIP mode for this creation
2284 * @link_state: The ctlr link state on creation
2286 * Called from either the libfcoe 'create' module parameter
2287 * via fcoe_create or from fcoe_syfs's ctlr_create file.
2289 * libfcoe's 'create' module parameter is deprecated so some
2290 * consolidation of code can be done when that interface is
2293 * Returns: 0 for success
2295 static int _bnx2fc_create(struct net_device
*netdev
,
2296 enum fip_mode fip_mode
,
2297 enum bnx2fc_create_link_state link_state
)
2299 struct fcoe_ctlr_device
*cdev
;
2300 struct fcoe_ctlr
*ctlr
;
2301 struct bnx2fc_interface
*interface
;
2302 struct bnx2fc_hba
*hba
;
2303 struct net_device
*phys_dev
= netdev
;
2304 struct fc_lport
*lport
;
2305 struct ethtool_drvinfo drvinfo
;
2309 BNX2FC_MISC_DBG("Entered bnx2fc_create\n");
2310 if (fip_mode
!= FIP_MODE_FABRIC
) {
2311 printk(KERN_ERR
"fip mode not FABRIC\n");
2317 mutex_lock(&bnx2fc_dev_lock
);
2319 if (!try_module_get(THIS_MODULE
)) {
2324 /* obtain physical netdev */
2325 if (is_vlan_dev(netdev
))
2326 phys_dev
= vlan_dev_real_dev(netdev
);
2328 /* verify if the physical device is a netxtreme2 device */
2329 if (phys_dev
->ethtool_ops
&& phys_dev
->ethtool_ops
->get_drvinfo
) {
2330 memset(&drvinfo
, 0, sizeof(drvinfo
));
2331 phys_dev
->ethtool_ops
->get_drvinfo(phys_dev
, &drvinfo
);
2332 if (strncmp(drvinfo
.driver
, "bnx2x", strlen("bnx2x"))) {
2333 printk(KERN_ERR PFX
"Not a netxtreme2 device\n");
2338 printk(KERN_ERR PFX
"unable to obtain drv_info\n");
2343 /* obtain interface and initialize rest of the structure */
2344 hba
= bnx2fc_hba_lookup(phys_dev
);
2347 printk(KERN_ERR PFX
"bnx2fc_create: hba not found\n");
2351 if (bnx2fc_interface_lookup(netdev
)) {
2356 interface
= bnx2fc_interface_create(hba
, netdev
, fip_mode
);
2358 printk(KERN_ERR PFX
"bnx2fc_interface_create failed\n");
2363 if (is_vlan_dev(netdev
)) {
2364 vlan_id
= vlan_dev_vlan_id(netdev
);
2365 interface
->vlan_enabled
= 1;
2368 ctlr
= bnx2fc_to_ctlr(interface
);
2369 cdev
= fcoe_ctlr_to_ctlr_dev(ctlr
);
2370 interface
->vlan_id
= vlan_id
;
2371 interface
->tm_timeout
= BNX2FC_TM_TIMEOUT
;
2373 interface
->timer_work_queue
=
2374 create_singlethread_workqueue("bnx2fc_timer_wq");
2375 if (!interface
->timer_work_queue
) {
2376 printk(KERN_ERR PFX
"ulp_init could not create timer_wq\n");
2381 lport
= bnx2fc_if_create(interface
, &cdev
->dev
, 0);
2383 printk(KERN_ERR PFX
"Failed to create interface (%s)\n",
2389 /* Add interface to if_list */
2390 list_add_tail(&interface
->list
, &if_list
);
2392 lport
->boot_time
= jiffies
;
2394 /* Make this master N_port */
2397 if (link_state
== BNX2FC_CREATE_LINK_UP
)
2398 cdev
->enabled
= FCOE_CTLR_ENABLED
;
2400 cdev
->enabled
= FCOE_CTLR_DISABLED
;
2402 if (link_state
== BNX2FC_CREATE_LINK_UP
&&
2403 !bnx2fc_link_ok(lport
)) {
2404 fcoe_ctlr_link_up(ctlr
);
2405 fc_host_port_type(lport
->host
) = FC_PORTTYPE_NPORT
;
2406 set_bit(ADAPTER_STATE_READY
, &interface
->hba
->adapter_state
);
2409 BNX2FC_HBA_DBG(lport
, "create: START DISC\n");
2410 bnx2fc_start_disc(interface
);
2412 if (link_state
== BNX2FC_CREATE_LINK_UP
)
2413 interface
->enabled
= true;
2416 * Release from kref_init in bnx2fc_interface_setup, on success
2417 * lport should be holding a reference taken in bnx2fc_if_create
2419 bnx2fc_interface_put(interface
);
2420 /* put netdev that was held while calling dev_get_by_name */
2421 mutex_unlock(&bnx2fc_dev_lock
);
2426 destroy_workqueue(interface
->timer_work_queue
);
2428 bnx2fc_net_cleanup(interface
);
2429 bnx2fc_interface_put(interface
);
2432 module_put(THIS_MODULE
);
2434 mutex_unlock(&bnx2fc_dev_lock
);
2440 * bnx2fc_create() - Create a bnx2fc interface
2441 * @netdev : The net_device object the Ethernet interface to create on
2442 * @fip_mode: The FIP mode for this creation
2444 * Called from fcoe transport
2446 * Returns: 0 for success
2448 static int bnx2fc_create(struct net_device
*netdev
, enum fip_mode fip_mode
)
2450 return _bnx2fc_create(netdev
, fip_mode
, BNX2FC_CREATE_LINK_UP
);
2454 * bnx2fc_ctlr_alloc() - Allocate a bnx2fc interface from fcoe_sysfs
2455 * @netdev: The net_device to be used by the allocated FCoE Controller
2457 * This routine is called from fcoe_sysfs. It will start the fcoe_ctlr
2458 * in a link_down state. The allows the user an opportunity to configure
2459 * the FCoE Controller from sysfs before enabling the FCoE Controller.
2461 * Creating in with this routine starts the FCoE Controller in Fabric
2462 * mode. The user can change to VN2VN or another mode before enabling.
2464 static int bnx2fc_ctlr_alloc(struct net_device
*netdev
)
2466 return _bnx2fc_create(netdev
, FIP_MODE_FABRIC
,
2467 BNX2FC_CREATE_LINK_DOWN
);
2471 * bnx2fc_find_hba_for_cnic - maps cnic instance to bnx2fc hba instance
2473 * @cnic: Pointer to cnic device instance
2476 static struct bnx2fc_hba
*bnx2fc_find_hba_for_cnic(struct cnic_dev
*cnic
)
2478 struct bnx2fc_hba
*hba
;
2480 /* Called with bnx2fc_dev_lock held */
2481 list_for_each_entry(hba
, &adapter_list
, list
) {
2482 if (hba
->cnic
== cnic
)
2488 static struct bnx2fc_interface
*bnx2fc_interface_lookup(struct net_device
2491 struct bnx2fc_interface
*interface
;
2493 /* Called with bnx2fc_dev_lock held */
2494 list_for_each_entry(interface
, &if_list
, list
) {
2495 if (interface
->netdev
== netdev
)
2501 static struct bnx2fc_hba
*bnx2fc_hba_lookup(struct net_device
2504 struct bnx2fc_hba
*hba
;
2506 /* Called with bnx2fc_dev_lock held */
2507 list_for_each_entry(hba
, &adapter_list
, list
) {
2508 if (hba
->phys_dev
== phys_dev
)
2511 printk(KERN_ERR PFX
"adapter_lookup: hba NULL\n");
2516 * bnx2fc_ulp_exit - shuts down adapter instance and frees all resources
2518 * @dev cnic device handle
2520 static void bnx2fc_ulp_exit(struct cnic_dev
*dev
)
2522 struct bnx2fc_hba
*hba
;
2523 struct bnx2fc_interface
*interface
, *tmp
;
2525 BNX2FC_MISC_DBG("Entered bnx2fc_ulp_exit\n");
2527 if (!test_bit(CNIC_F_BNX2X_CLASS
, &dev
->flags
)) {
2528 printk(KERN_ERR PFX
"bnx2fc port check: %s, flags: %lx\n",
2529 dev
->netdev
->name
, dev
->flags
);
2533 mutex_lock(&bnx2fc_dev_lock
);
2534 hba
= bnx2fc_find_hba_for_cnic(dev
);
2536 printk(KERN_ERR PFX
"bnx2fc_ulp_exit: hba not found, dev 0%p\n",
2538 mutex_unlock(&bnx2fc_dev_lock
);
2542 list_del_init(&hba
->list
);
2545 list_for_each_entry_safe(interface
, tmp
, &if_list
, list
)
2546 /* destroy not called yet, move to quiesced list */
2547 if (interface
->hba
== hba
)
2548 __bnx2fc_destroy(interface
);
2549 mutex_unlock(&bnx2fc_dev_lock
);
2551 /* Ensure ALL destroy work has been completed before return */
2552 flush_workqueue(bnx2fc_wq
);
2554 bnx2fc_ulp_stop(hba
);
2555 /* unregister cnic device */
2556 if (test_and_clear_bit(BNX2FC_CNIC_REGISTERED
, &hba
->reg_with_cnic
))
2557 hba
->cnic
->unregister_device(hba
->cnic
, CNIC_ULP_FCOE
);
2558 bnx2fc_hba_destroy(hba
);
2562 * bnx2fc_fcoe_reset - Resets the fcoe
2564 * @shost: shost the reset is from
2568 static int bnx2fc_fcoe_reset(struct Scsi_Host
*shost
)
2570 struct fc_lport
*lport
= shost_priv(shost
);
2571 fc_lport_reset(lport
);
2576 static bool bnx2fc_match(struct net_device
*netdev
)
2578 struct net_device
*phys_dev
= netdev
;
2580 mutex_lock(&bnx2fc_dev_lock
);
2581 if (is_vlan_dev(netdev
))
2582 phys_dev
= vlan_dev_real_dev(netdev
);
2584 if (bnx2fc_hba_lookup(phys_dev
)) {
2585 mutex_unlock(&bnx2fc_dev_lock
);
2589 mutex_unlock(&bnx2fc_dev_lock
);
2594 static struct fcoe_transport bnx2fc_transport
= {
2597 .list
= LIST_HEAD_INIT(bnx2fc_transport
.list
),
2598 .alloc
= bnx2fc_ctlr_alloc
,
2599 .match
= bnx2fc_match
,
2600 .create
= bnx2fc_create
,
2601 .destroy
= bnx2fc_destroy
,
2602 .enable
= bnx2fc_enable
,
2603 .disable
= bnx2fc_disable
,
2607 * bnx2fc_percpu_thread_create - Create a receive thread for an
2610 * @cpu: cpu index for the online cpu
2612 static void bnx2fc_percpu_thread_create(unsigned int cpu
)
2614 struct bnx2fc_percpu_s
*p
;
2615 struct task_struct
*thread
;
2617 p
= &per_cpu(bnx2fc_percpu
, cpu
);
2619 thread
= kthread_create_on_node(bnx2fc_percpu_io_thread
,
2620 (void *)p
, cpu_to_node(cpu
),
2621 "bnx2fc_thread/%d", cpu
);
2622 /* bind thread to the cpu */
2623 if (likely(!IS_ERR(thread
))) {
2624 kthread_bind(thread
, cpu
);
2625 p
->iothread
= thread
;
2626 wake_up_process(thread
);
2630 static void bnx2fc_percpu_thread_destroy(unsigned int cpu
)
2632 struct bnx2fc_percpu_s
*p
;
2633 struct task_struct
*thread
;
2634 struct bnx2fc_work
*work
, *tmp
;
2636 BNX2FC_MISC_DBG("destroying io thread for CPU %d\n", cpu
);
2638 /* Prevent any new work from being queued for this CPU */
2639 p
= &per_cpu(bnx2fc_percpu
, cpu
);
2640 spin_lock_bh(&p
->fp_work_lock
);
2641 thread
= p
->iothread
;
2645 /* Free all work in the list */
2646 list_for_each_entry_safe(work
, tmp
, &p
->work_list
, list
) {
2647 list_del_init(&work
->list
);
2648 bnx2fc_process_cq_compl(work
->tgt
, work
->wqe
);
2652 spin_unlock_bh(&p
->fp_work_lock
);
2655 kthread_stop(thread
);
2659 static int bnx2fc_cpu_online(unsigned int cpu
)
2661 printk(PFX
"CPU %x online: Create Rx thread\n", cpu
);
2662 bnx2fc_percpu_thread_create(cpu
);
2666 static int bnx2fc_cpu_dead(unsigned int cpu
)
2668 printk(PFX
"CPU %x offline: Remove Rx thread\n", cpu
);
2669 bnx2fc_percpu_thread_destroy(cpu
);
2673 static int bnx2fc_slave_configure(struct scsi_device
*sdev
)
2675 if (!bnx2fc_queue_depth
)
2678 scsi_change_queue_depth(sdev
, bnx2fc_queue_depth
);
2682 static enum cpuhp_state bnx2fc_online_state
;
2685 * bnx2fc_mod_init - module init entry point
2687 * Initialize driver wide global data structures, and register
2690 static int __init
bnx2fc_mod_init(void)
2692 struct fcoe_percpu_s
*bg
;
2693 struct task_struct
*l2_thread
;
2695 unsigned int cpu
= 0;
2696 struct bnx2fc_percpu_s
*p
;
2698 printk(KERN_INFO PFX
"%s", version
);
2700 /* register as a fcoe transport */
2701 rc
= fcoe_transport_attach(&bnx2fc_transport
);
2703 printk(KERN_ERR
"failed to register an fcoe transport, check "
2704 "if libfcoe is loaded\n");
2708 INIT_LIST_HEAD(&adapter_list
);
2709 INIT_LIST_HEAD(&if_list
);
2710 mutex_init(&bnx2fc_dev_lock
);
2713 /* Attach FC transport template */
2714 rc
= bnx2fc_attach_transport();
2718 bnx2fc_wq
= alloc_workqueue("bnx2fc", 0, 0);
2724 bg
= &bnx2fc_global
;
2725 skb_queue_head_init(&bg
->fcoe_rx_list
);
2726 l2_thread
= kthread_create(bnx2fc_l2_rcv_thread
,
2728 "bnx2fc_l2_thread");
2729 if (IS_ERR(l2_thread
)) {
2730 rc
= PTR_ERR(l2_thread
);
2733 wake_up_process(l2_thread
);
2734 spin_lock_bh(&bg
->fcoe_rx_list
.lock
);
2735 bg
->kthread
= l2_thread
;
2736 spin_unlock_bh(&bg
->fcoe_rx_list
.lock
);
2738 for_each_possible_cpu(cpu
) {
2739 p
= &per_cpu(bnx2fc_percpu
, cpu
);
2740 INIT_LIST_HEAD(&p
->work_list
);
2741 spin_lock_init(&p
->fp_work_lock
);
2746 for_each_online_cpu(cpu
)
2747 bnx2fc_percpu_thread_create(cpu
);
2749 rc
= cpuhp_setup_state_nocalls(CPUHP_AP_ONLINE_DYN
,
2750 "scsi/bnx2fc:online",
2751 bnx2fc_cpu_online
, NULL
);
2754 bnx2fc_online_state
= rc
;
2756 cpuhp_setup_state_nocalls(CPUHP_SCSI_BNX2FC_DEAD
, "scsi/bnx2fc:dead",
2757 NULL
, bnx2fc_cpu_dead
);
2760 cnic_register_driver(CNIC_ULP_FCOE
, &bnx2fc_cnic_cb
);
2765 for_each_online_cpu(cpu
)
2766 bnx2fc_percpu_thread_destroy(cpu
);
2768 kthread_stop(l2_thread
);
2770 destroy_workqueue(bnx2fc_wq
);
2772 bnx2fc_release_transport();
2774 fcoe_transport_detach(&bnx2fc_transport
);
2779 static void __exit
bnx2fc_mod_exit(void)
2781 LIST_HEAD(to_be_deleted
);
2782 struct bnx2fc_hba
*hba
, *next
;
2783 struct fcoe_percpu_s
*bg
;
2784 struct task_struct
*l2_thread
;
2785 struct sk_buff
*skb
;
2786 unsigned int cpu
= 0;
2789 * NOTE: Since cnic calls register_driver routine rtnl_lock,
2790 * it will have higher precedence than bnx2fc_dev_lock.
2791 * unregister_device() cannot be called with bnx2fc_dev_lock
2794 mutex_lock(&bnx2fc_dev_lock
);
2795 list_splice_init(&adapter_list
, &to_be_deleted
);
2797 mutex_unlock(&bnx2fc_dev_lock
);
2799 /* Unregister with cnic */
2800 list_for_each_entry_safe(hba
, next
, &to_be_deleted
, list
) {
2801 list_del_init(&hba
->list
);
2802 printk(KERN_ERR PFX
"MOD_EXIT:destroy hba = 0x%p\n",
2804 bnx2fc_ulp_stop(hba
);
2805 /* unregister cnic device */
2806 if (test_and_clear_bit(BNX2FC_CNIC_REGISTERED
,
2807 &hba
->reg_with_cnic
))
2808 hba
->cnic
->unregister_device(hba
->cnic
,
2810 bnx2fc_hba_destroy(hba
);
2812 cnic_unregister_driver(CNIC_ULP_FCOE
);
2814 /* Destroy global thread */
2815 bg
= &bnx2fc_global
;
2816 spin_lock_bh(&bg
->fcoe_rx_list
.lock
);
2817 l2_thread
= bg
->kthread
;
2819 while ((skb
= __skb_dequeue(&bg
->fcoe_rx_list
)) != NULL
)
2822 spin_unlock_bh(&bg
->fcoe_rx_list
.lock
);
2825 kthread_stop(l2_thread
);
2828 /* Destroy per cpu threads */
2829 for_each_online_cpu(cpu
) {
2830 bnx2fc_percpu_thread_destroy(cpu
);
2833 cpuhp_remove_state_nocalls(bnx2fc_online_state
);
2834 cpuhp_remove_state_nocalls(CPUHP_SCSI_BNX2FC_DEAD
);
2838 destroy_workqueue(bnx2fc_wq
);
2840 * detach from scsi transport
2841 * must happen after all destroys are done
2843 bnx2fc_release_transport();
2845 /* detach from fcoe transport */
2846 fcoe_transport_detach(&bnx2fc_transport
);
2849 module_init(bnx2fc_mod_init
);
2850 module_exit(bnx2fc_mod_exit
);
2852 static struct fcoe_sysfs_function_template bnx2fc_fcoe_sysfs_templ
= {
2853 .set_fcoe_ctlr_enabled
= bnx2fc_ctlr_enabled
,
2854 .get_fcoe_ctlr_link_fail
= fcoe_ctlr_get_lesb
,
2855 .get_fcoe_ctlr_vlink_fail
= fcoe_ctlr_get_lesb
,
2856 .get_fcoe_ctlr_miss_fka
= fcoe_ctlr_get_lesb
,
2857 .get_fcoe_ctlr_symb_err
= fcoe_ctlr_get_lesb
,
2858 .get_fcoe_ctlr_err_block
= fcoe_ctlr_get_lesb
,
2859 .get_fcoe_ctlr_fcs_error
= fcoe_ctlr_get_lesb
,
2861 .get_fcoe_fcf_selected
= fcoe_fcf_get_selected
,
2862 .get_fcoe_fcf_vlan_id
= bnx2fc_fcf_get_vlan_id
,
2865 static struct fc_function_template bnx2fc_transport_function
= {
2866 .show_host_node_name
= 1,
2867 .show_host_port_name
= 1,
2868 .show_host_supported_classes
= 1,
2869 .show_host_supported_fc4s
= 1,
2870 .show_host_active_fc4s
= 1,
2871 .show_host_maxframe_size
= 1,
2873 .show_host_port_id
= 1,
2874 .show_host_supported_speeds
= 1,
2875 .get_host_speed
= fc_get_host_speed
,
2876 .show_host_speed
= 1,
2877 .show_host_port_type
= 1,
2878 .get_host_port_state
= fc_get_host_port_state
,
2879 .show_host_port_state
= 1,
2880 .show_host_symbolic_name
= 1,
2882 .dd_fcrport_size
= (sizeof(struct fc_rport_libfc_priv
) +
2883 sizeof(struct bnx2fc_rport
)),
2884 .show_rport_maxframe_size
= 1,
2885 .show_rport_supported_classes
= 1,
2887 .show_host_fabric_name
= 1,
2888 .show_starget_node_name
= 1,
2889 .show_starget_port_name
= 1,
2890 .show_starget_port_id
= 1,
2891 .set_rport_dev_loss_tmo
= fc_set_rport_loss_tmo
,
2892 .show_rport_dev_loss_tmo
= 1,
2893 .get_fc_host_stats
= bnx2fc_get_host_stats
,
2895 .issue_fc_host_lip
= bnx2fc_fcoe_reset
,
2897 .terminate_rport_io
= fc_rport_terminate_io
,
2899 .vport_create
= bnx2fc_vport_create
,
2900 .vport_delete
= bnx2fc_vport_destroy
,
2901 .vport_disable
= bnx2fc_vport_disable
,
2902 .bsg_request
= fc_lport_bsg_request
,
2905 static struct fc_function_template bnx2fc_vport_xport_function
= {
2906 .show_host_node_name
= 1,
2907 .show_host_port_name
= 1,
2908 .show_host_supported_classes
= 1,
2909 .show_host_supported_fc4s
= 1,
2910 .show_host_active_fc4s
= 1,
2911 .show_host_maxframe_size
= 1,
2913 .show_host_port_id
= 1,
2914 .show_host_supported_speeds
= 1,
2915 .get_host_speed
= fc_get_host_speed
,
2916 .show_host_speed
= 1,
2917 .show_host_port_type
= 1,
2918 .get_host_port_state
= fc_get_host_port_state
,
2919 .show_host_port_state
= 1,
2920 .show_host_symbolic_name
= 1,
2922 .dd_fcrport_size
= (sizeof(struct fc_rport_libfc_priv
) +
2923 sizeof(struct bnx2fc_rport
)),
2924 .show_rport_maxframe_size
= 1,
2925 .show_rport_supported_classes
= 1,
2927 .show_host_fabric_name
= 1,
2928 .show_starget_node_name
= 1,
2929 .show_starget_port_name
= 1,
2930 .show_starget_port_id
= 1,
2931 .set_rport_dev_loss_tmo
= fc_set_rport_loss_tmo
,
2932 .show_rport_dev_loss_tmo
= 1,
2933 .get_fc_host_stats
= fc_get_host_stats
,
2934 .issue_fc_host_lip
= bnx2fc_fcoe_reset
,
2935 .terminate_rport_io
= fc_rport_terminate_io
,
2936 .bsg_request
= fc_lport_bsg_request
,
2940 * Additional scsi_host attributes.
2943 bnx2fc_tm_timeout_show(struct device
*dev
, struct device_attribute
*attr
,
2946 struct Scsi_Host
*shost
= class_to_shost(dev
);
2947 struct fc_lport
*lport
= shost_priv(shost
);
2948 struct fcoe_port
*port
= lport_priv(lport
);
2949 struct bnx2fc_interface
*interface
= port
->priv
;
2951 sprintf(buf
, "%u\n", interface
->tm_timeout
);
2956 bnx2fc_tm_timeout_store(struct device
*dev
,
2957 struct device_attribute
*attr
, const char *buf
, size_t count
)
2959 struct Scsi_Host
*shost
= class_to_shost(dev
);
2960 struct fc_lport
*lport
= shost_priv(shost
);
2961 struct fcoe_port
*port
= lport_priv(lport
);
2962 struct bnx2fc_interface
*interface
= port
->priv
;
2965 rval
= kstrtouint(buf
, 10, &val
);
2971 interface
->tm_timeout
= (u8
)val
;
2975 static DEVICE_ATTR(tm_timeout
, S_IRUGO
|S_IWUSR
, bnx2fc_tm_timeout_show
,
2976 bnx2fc_tm_timeout_store
);
2978 static struct device_attribute
*bnx2fc_host_attrs
[] = {
2979 &dev_attr_tm_timeout
,
2984 * scsi_host_template structure used while registering with SCSI-ml
2986 static struct scsi_host_template bnx2fc_shost_template
= {
2987 .module
= THIS_MODULE
,
2988 .name
= "QLogic Offload FCoE Initiator",
2989 .queuecommand
= bnx2fc_queuecommand
,
2990 .eh_timed_out
= fc_eh_timed_out
,
2991 .eh_abort_handler
= bnx2fc_eh_abort
, /* abts */
2992 .eh_device_reset_handler
= bnx2fc_eh_device_reset
, /* lun reset */
2993 .eh_target_reset_handler
= bnx2fc_eh_target_reset
, /* tgt reset */
2994 .eh_host_reset_handler
= fc_eh_host_reset
,
2995 .slave_alloc
= fc_slave_alloc
,
2996 .change_queue_depth
= scsi_change_queue_depth
,
2999 .use_clustering
= ENABLE_CLUSTERING
,
3000 .sg_tablesize
= BNX2FC_MAX_BDS_PER_CMD
,
3001 .max_sectors
= 1024,
3002 .track_queue_depth
= 1,
3003 .slave_configure
= bnx2fc_slave_configure
,
3004 .shost_attrs
= bnx2fc_host_attrs
,
3007 static struct libfc_function_template bnx2fc_libfc_fcn_templ
= {
3008 .frame_send
= bnx2fc_xmit
,
3009 .elsct_send
= bnx2fc_elsct_send
,
3010 .fcp_abort_io
= bnx2fc_abort_io
,
3011 .fcp_cleanup
= bnx2fc_cleanup
,
3012 .get_lesb
= fcoe_get_lesb
,
3013 .rport_event_callback
= bnx2fc_rport_event_handler
,
3017 * bnx2fc_cnic_cb - global template of bnx2fc - cnic driver interface
3018 * structure carrying callback function pointers
3020 static struct cnic_ulp_ops bnx2fc_cnic_cb
= {
3021 .owner
= THIS_MODULE
,
3022 .cnic_init
= bnx2fc_ulp_init
,
3023 .cnic_exit
= bnx2fc_ulp_exit
,
3024 .cnic_start
= bnx2fc_ulp_start
,
3025 .cnic_stop
= bnx2fc_ulp_stop
,
3026 .indicate_kcqes
= bnx2fc_indicate_kcqe
,
3027 .indicate_netevent
= bnx2fc_indicate_netevent
,
3028 .cnic_get_stats
= bnx2fc_ulp_get_stats
,