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
;
155 spin_lock_bh(&bg
->fcoe_rx_list
.lock
);
156 list
= &bg
->fcoe_rx_list
;
157 skb_queue_walk_safe(list
, skb
, next
) {
158 fr
= fcoe_dev_from_skb(skb
);
159 if (fr
->fr_dev
== lp
) {
160 __skb_unlink(skb
, list
);
164 spin_unlock_bh(&bg
->fcoe_rx_list
.lock
);
167 int bnx2fc_get_paged_crc_eof(struct sk_buff
*skb
, int tlen
)
170 spin_lock(&bnx2fc_global_lock
);
171 rc
= fcoe_get_paged_crc_eof(skb
, tlen
, &bnx2fc_global
);
172 spin_unlock(&bnx2fc_global_lock
);
177 static void bnx2fc_abort_io(struct fc_lport
*lport
)
180 * This function is no-op for bnx2fc, but we do
181 * not want to leave it as NULL either, as libfc
182 * can call the default function which is
187 static void bnx2fc_cleanup(struct fc_lport
*lport
)
189 struct fcoe_port
*port
= lport_priv(lport
);
190 struct bnx2fc_interface
*interface
= port
->priv
;
191 struct bnx2fc_hba
*hba
= interface
->hba
;
192 struct bnx2fc_rport
*tgt
;
195 BNX2FC_MISC_DBG("Entered %s\n", __func__
);
196 mutex_lock(&hba
->hba_mutex
);
197 spin_lock_bh(&hba
->hba_lock
);
198 for (i
= 0; i
< BNX2FC_NUM_MAX_SESS
; i
++) {
199 tgt
= hba
->tgt_ofld_list
[i
];
201 /* Cleanup IOs belonging to requested vport */
202 if (tgt
->port
== port
) {
203 spin_unlock_bh(&hba
->hba_lock
);
204 BNX2FC_TGT_DBG(tgt
, "flush/cleanup\n");
205 bnx2fc_flush_active_ios(tgt
);
206 spin_lock_bh(&hba
->hba_lock
);
210 spin_unlock_bh(&hba
->hba_lock
);
211 mutex_unlock(&hba
->hba_mutex
);
214 static int bnx2fc_xmit_l2_frame(struct bnx2fc_rport
*tgt
,
217 struct fc_rport_priv
*rdata
= tgt
->rdata
;
218 struct fc_frame_header
*fh
;
221 fh
= fc_frame_header_get(fp
);
222 BNX2FC_TGT_DBG(tgt
, "Xmit L2 frame rport = 0x%x, oxid = 0x%x, "
223 "r_ctl = 0x%x\n", rdata
->ids
.port_id
,
224 ntohs(fh
->fh_ox_id
), fh
->fh_r_ctl
);
225 if ((fh
->fh_type
== FC_TYPE_ELS
) &&
226 (fh
->fh_r_ctl
== FC_RCTL_ELS_REQ
)) {
228 switch (fc_frame_payload_op(fp
)) {
230 rc
= bnx2fc_send_adisc(tgt
, fp
);
233 rc
= bnx2fc_send_logo(tgt
, fp
);
236 rc
= bnx2fc_send_rls(tgt
, fp
);
241 } else if ((fh
->fh_type
== FC_TYPE_BLS
) &&
242 (fh
->fh_r_ctl
== FC_RCTL_BA_ABTS
))
243 BNX2FC_TGT_DBG(tgt
, "ABTS frame\n");
245 BNX2FC_TGT_DBG(tgt
, "Send L2 frame type 0x%x "
246 "rctl 0x%x thru non-offload path\n",
247 fh
->fh_type
, fh
->fh_r_ctl
);
257 * bnx2fc_xmit - bnx2fc's FCoE frame transmit function
259 * @lport: the associated local port
260 * @fp: the fc_frame to be transmitted
262 static int bnx2fc_xmit(struct fc_lport
*lport
, struct fc_frame
*fp
)
265 struct fcoe_crc_eof
*cp
;
267 struct fc_frame_header
*fh
;
268 struct bnx2fc_interface
*interface
;
269 struct fcoe_ctlr
*ctlr
;
270 struct bnx2fc_hba
*hba
;
271 struct fcoe_port
*port
;
273 struct bnx2fc_rport
*tgt
;
274 struct fc_stats
*stats
;
277 unsigned int hlen
, tlen
, elen
;
280 port
= (struct fcoe_port
*)lport_priv(lport
);
281 interface
= port
->priv
;
282 ctlr
= bnx2fc_to_ctlr(interface
);
283 hba
= interface
->hba
;
285 fh
= fc_frame_header_get(fp
);
288 if (!lport
->link_up
) {
289 BNX2FC_HBA_DBG(lport
, "bnx2fc_xmit link down\n");
294 if (unlikely(fh
->fh_r_ctl
== FC_RCTL_ELS_REQ
)) {
295 if (!ctlr
->sel_fcf
) {
296 BNX2FC_HBA_DBG(lport
, "FCF not selected yet!\n");
300 if (fcoe_ctlr_els_send(ctlr
, lport
, skb
))
308 * Snoop the frame header to check if the frame is for
309 * an offloaded session
312 * tgt_ofld_list access is synchronized using
313 * both hba mutex and hba lock. Atleast hba mutex or
314 * hba lock needs to be held for read access.
317 spin_lock_bh(&hba
->hba_lock
);
318 tgt
= bnx2fc_tgt_lookup(port
, ntoh24(fh
->fh_d_id
));
319 if (tgt
&& (test_bit(BNX2FC_FLAG_SESSION_READY
, &tgt
->flags
))) {
320 /* This frame is for offloaded session */
321 BNX2FC_HBA_DBG(lport
, "xmit: Frame is for offloaded session "
322 "port_id = 0x%x\n", ntoh24(fh
->fh_d_id
));
323 spin_unlock_bh(&hba
->hba_lock
);
324 rc
= bnx2fc_xmit_l2_frame(tgt
, fp
);
330 spin_unlock_bh(&hba
->hba_lock
);
333 elen
= sizeof(struct ethhdr
);
334 hlen
= sizeof(struct fcoe_hdr
);
335 tlen
= sizeof(struct fcoe_crc_eof
);
336 wlen
= (skb
->len
- tlen
+ sizeof(crc
)) / FCOE_WORD_TO_BYTE
;
338 skb
->ip_summed
= CHECKSUM_NONE
;
339 crc
= fcoe_fc_crc(fp
);
341 /* copy port crc and eof to the skb buff */
342 if (skb_is_nonlinear(skb
)) {
344 if (bnx2fc_get_paged_crc_eof(skb
, tlen
)) {
348 frag
= &skb_shinfo(skb
)->frags
[skb_shinfo(skb
)->nr_frags
- 1];
349 cp
= kmap_atomic(skb_frag_page(frag
)) + skb_frag_off(frag
);
351 cp
= skb_put(skb
, tlen
);
354 memset(cp
, 0, sizeof(*cp
));
356 cp
->fcoe_crc32
= cpu_to_le32(~crc
);
357 if (skb_is_nonlinear(skb
)) {
362 /* adjust skb network/transport offsets to match mac/fcoe/port */
363 skb_push(skb
, elen
+ hlen
);
364 skb_reset_mac_header(skb
);
365 skb_reset_network_header(skb
);
367 skb
->protocol
= htons(ETH_P_FCOE
);
368 skb
->dev
= interface
->netdev
;
370 /* fill up mac and fcoe headers */
372 eh
->h_proto
= htons(ETH_P_FCOE
);
374 fc_fcoe_set_mac(eh
->h_dest
, fh
->fh_d_id
);
376 /* insert GW address */
377 memcpy(eh
->h_dest
, ctlr
->dest_addr
, ETH_ALEN
);
379 if (unlikely(ctlr
->flogi_oxid
!= FC_XID_UNKNOWN
))
380 memcpy(eh
->h_source
, ctlr
->ctl_src_addr
, ETH_ALEN
);
382 memcpy(eh
->h_source
, port
->data_src_addr
, ETH_ALEN
);
384 hp
= (struct fcoe_hdr
*)(eh
+ 1);
385 memset(hp
, 0, sizeof(*hp
));
387 FC_FCOE_ENCAPS_VER(hp
, FC_FCOE_VER
);
390 /* fcoe lso, mss is in max_payload which is non-zero for FCP data */
391 if (lport
->seq_offload
&& fr_max_payload(fp
)) {
392 skb_shinfo(skb
)->gso_type
= SKB_GSO_FCOE
;
393 skb_shinfo(skb
)->gso_size
= fr_max_payload(fp
);
395 skb_shinfo(skb
)->gso_type
= 0;
396 skb_shinfo(skb
)->gso_size
= 0;
400 stats
= per_cpu_ptr(lport
->stats
, get_cpu());
402 stats
->TxWords
+= wlen
;
405 /* send down to lld */
407 if (port
->fcoe_pending_queue
.qlen
)
408 fcoe_check_wait_queue(lport
, skb
);
409 else if (fcoe_start_io(skb
))
410 fcoe_check_wait_queue(lport
, skb
);
416 * bnx2fc_rcv - This is bnx2fc's receive function called by NET_RX_SOFTIRQ
418 * @skb: the receive socket buffer
419 * @dev: associated net device
421 * @olddev: last device
423 * This function receives the packet and builds FC frame and passes it up
425 static int bnx2fc_rcv(struct sk_buff
*skb
, struct net_device
*dev
,
426 struct packet_type
*ptype
, struct net_device
*olddev
)
428 struct fc_lport
*lport
;
429 struct bnx2fc_interface
*interface
;
430 struct fcoe_ctlr
*ctlr
;
431 struct fcoe_rcv_info
*fr
;
432 struct fcoe_percpu_s
*bg
;
433 struct sk_buff
*tmp_skb
;
435 interface
= container_of(ptype
, struct bnx2fc_interface
,
437 ctlr
= bnx2fc_to_ctlr(interface
);
440 if (unlikely(lport
== NULL
)) {
441 printk(KERN_ERR PFX
"bnx2fc_rcv: lport is NULL\n");
445 tmp_skb
= skb_share_check(skb
, GFP_ATOMIC
);
451 if (unlikely(eth_hdr(skb
)->h_proto
!= htons(ETH_P_FCOE
))) {
452 printk(KERN_ERR PFX
"bnx2fc_rcv: Wrong FC type frame\n");
457 * Check for minimum frame length, and make sure required FCoE
458 * and FC headers are pulled into the linear data area.
460 if (unlikely((skb
->len
< FCOE_MIN_FRAME
) ||
461 !pskb_may_pull(skb
, FCOE_HEADER_LEN
)))
464 skb_set_transport_header(skb
, sizeof(struct fcoe_hdr
));
466 fr
= fcoe_dev_from_skb(skb
);
470 spin_lock(&bg
->fcoe_rx_list
.lock
);
472 __skb_queue_tail(&bg
->fcoe_rx_list
, skb
);
473 if (bg
->fcoe_rx_list
.qlen
== 1)
474 wake_up_process(bg
->kthread
);
476 spin_unlock(&bg
->fcoe_rx_list
.lock
);
484 static int bnx2fc_l2_rcv_thread(void *arg
)
486 struct fcoe_percpu_s
*bg
= arg
;
489 set_user_nice(current
, MIN_NICE
);
490 set_current_state(TASK_INTERRUPTIBLE
);
491 while (!kthread_should_stop()) {
493 spin_lock_bh(&bg
->fcoe_rx_list
.lock
);
494 while ((skb
= __skb_dequeue(&bg
->fcoe_rx_list
)) != NULL
) {
495 spin_unlock_bh(&bg
->fcoe_rx_list
.lock
);
496 bnx2fc_recv_frame(skb
);
497 spin_lock_bh(&bg
->fcoe_rx_list
.lock
);
499 __set_current_state(TASK_INTERRUPTIBLE
);
500 spin_unlock_bh(&bg
->fcoe_rx_list
.lock
);
502 __set_current_state(TASK_RUNNING
);
507 static void bnx2fc_recv_frame(struct sk_buff
*skb
)
510 struct fc_lport
*lport
;
511 struct fcoe_rcv_info
*fr
;
512 struct fc_stats
*stats
;
513 struct fc_frame_header
*fh
;
514 struct fcoe_crc_eof crc_eof
;
516 struct fc_lport
*vn_port
;
517 struct fcoe_port
*port
, *phys_port
;
521 struct bnx2fc_interface
*interface
;
522 struct fcoe_ctlr
*ctlr
;
524 fr
= fcoe_dev_from_skb(skb
);
526 if (unlikely(lport
== NULL
)) {
527 printk(KERN_ERR PFX
"Invalid lport struct\n");
532 if (skb_is_nonlinear(skb
))
534 mac
= eth_hdr(skb
)->h_source
;
535 dest_mac
= eth_hdr(skb
)->h_dest
;
537 /* Pull the header */
538 hp
= (struct fcoe_hdr
*) skb_network_header(skb
);
539 fh
= (struct fc_frame_header
*) skb_transport_header(skb
);
540 skb_pull(skb
, sizeof(struct fcoe_hdr
));
541 fr_len
= skb
->len
- sizeof(struct fcoe_crc_eof
);
543 fp
= (struct fc_frame
*)skb
;
546 fr_sof(fp
) = hp
->fcoe_sof
;
547 if (skb_copy_bits(skb
, fr_len
, &crc_eof
, sizeof(crc_eof
))) {
551 fr_eof(fp
) = crc_eof
.fcoe_eof
;
552 fr_crc(fp
) = crc_eof
.fcoe_crc32
;
553 if (pskb_trim(skb
, fr_len
)) {
558 phys_port
= lport_priv(lport
);
559 interface
= phys_port
->priv
;
560 ctlr
= bnx2fc_to_ctlr(interface
);
562 fh
= fc_frame_header_get(fp
);
564 if (ntoh24(&dest_mac
[3]) != ntoh24(fh
->fh_d_id
)) {
565 BNX2FC_HBA_DBG(lport
, "FC frame d_id mismatch with MAC %pM.\n",
571 vn_port
= fc_vport_id_lookup(lport
, ntoh24(fh
->fh_d_id
));
573 port
= lport_priv(vn_port
);
574 if (!ether_addr_equal(port
->data_src_addr
, dest_mac
)) {
575 BNX2FC_HBA_DBG(lport
, "fpma mismatch\n");
581 if (!ether_addr_equal(mac
, ctlr
->dest_addr
)) {
582 BNX2FC_HBA_DBG(lport
, "Wrong source address: mac:%pM dest_addr:%pM.\n",
583 mac
, ctlr
->dest_addr
);
588 if (fh
->fh_r_ctl
== FC_RCTL_DD_SOL_DATA
&&
589 fh
->fh_type
== FC_TYPE_FCP
) {
590 /* Drop FCP data. We dont this in L2 path */
594 if (fh
->fh_r_ctl
== FC_RCTL_ELS_REQ
&&
595 fh
->fh_type
== FC_TYPE_ELS
) {
596 switch (fc_frame_payload_op(fp
)) {
598 if (ntoh24(fh
->fh_s_id
) == FC_FID_FLOGI
) {
599 /* drop non-FIP LOGO */
607 if (fh
->fh_r_ctl
== FC_RCTL_BA_ABTS
) {
608 /* Drop incoming ABTS */
614 * If the destination ID from the frame header does not match what we
615 * have on record for lport and the search for a NPIV port came up
616 * empty then this is not addressed to our port so simply drop it.
618 if (lport
->port_id
!= ntoh24(fh
->fh_d_id
) && !vn_port
) {
619 BNX2FC_HBA_DBG(lport
, "Dropping frame due to destination mismatch: lport->port_id=%x fh->d_id=%x.\n",
620 lport
->port_id
, ntoh24(fh
->fh_d_id
));
625 stats
= per_cpu_ptr(lport
->stats
, smp_processor_id());
627 stats
->RxWords
+= fr_len
/ FCOE_WORD_TO_BYTE
;
629 if (le32_to_cpu(fr_crc(fp
)) !=
630 ~crc32(~0, skb
->data
, fr_len
)) {
631 if (stats
->InvalidCRCCount
< 5)
632 printk(KERN_WARNING PFX
"dropping frame with "
634 stats
->InvalidCRCCount
++;
638 fc_exch_recv(lport
, fp
);
642 * bnx2fc_percpu_io_thread - thread per cpu for ios
644 * @arg: ptr to bnx2fc_percpu_info structure
646 static int bnx2fc_percpu_io_thread(void *arg
)
648 struct bnx2fc_percpu_s
*p
= arg
;
649 struct bnx2fc_work
*work
, *tmp
;
650 LIST_HEAD(work_list
);
652 set_user_nice(current
, MIN_NICE
);
653 set_current_state(TASK_INTERRUPTIBLE
);
654 while (!kthread_should_stop()) {
656 spin_lock_bh(&p
->fp_work_lock
);
657 while (!list_empty(&p
->work_list
)) {
658 list_splice_init(&p
->work_list
, &work_list
);
659 spin_unlock_bh(&p
->fp_work_lock
);
661 list_for_each_entry_safe(work
, tmp
, &work_list
, list
) {
662 list_del_init(&work
->list
);
663 bnx2fc_process_cq_compl(work
->tgt
, work
->wqe
);
667 spin_lock_bh(&p
->fp_work_lock
);
669 __set_current_state(TASK_INTERRUPTIBLE
);
670 spin_unlock_bh(&p
->fp_work_lock
);
672 __set_current_state(TASK_RUNNING
);
677 static struct fc_host_statistics
*bnx2fc_get_host_stats(struct Scsi_Host
*shost
)
679 struct fc_host_statistics
*bnx2fc_stats
;
680 struct fc_lport
*lport
= shost_priv(shost
);
681 struct fcoe_port
*port
= lport_priv(lport
);
682 struct bnx2fc_interface
*interface
= port
->priv
;
683 struct bnx2fc_hba
*hba
= interface
->hba
;
684 struct fcoe_statistics_params
*fw_stats
;
687 fw_stats
= (struct fcoe_statistics_params
*)hba
->stats_buffer
;
691 mutex_lock(&hba
->hba_stats_mutex
);
693 bnx2fc_stats
= fc_get_host_stats(shost
);
695 init_completion(&hba
->stat_req_done
);
696 if (bnx2fc_send_stat_req(hba
))
697 goto unlock_stats_mutex
;
698 rc
= wait_for_completion_timeout(&hba
->stat_req_done
, (2 * HZ
));
700 BNX2FC_HBA_DBG(lport
, "FW stat req timed out\n");
701 goto unlock_stats_mutex
;
703 BNX2FC_STATS(hba
, rx_stat2
, fc_crc_cnt
);
704 bnx2fc_stats
->invalid_crc_count
+= hba
->bfw_stats
.fc_crc_cnt
;
705 BNX2FC_STATS(hba
, tx_stat
, fcoe_tx_pkt_cnt
);
706 bnx2fc_stats
->tx_frames
+= hba
->bfw_stats
.fcoe_tx_pkt_cnt
;
707 BNX2FC_STATS(hba
, tx_stat
, fcoe_tx_byte_cnt
);
708 bnx2fc_stats
->tx_words
+= ((hba
->bfw_stats
.fcoe_tx_byte_cnt
) / 4);
709 BNX2FC_STATS(hba
, rx_stat0
, fcoe_rx_pkt_cnt
);
710 bnx2fc_stats
->rx_frames
+= hba
->bfw_stats
.fcoe_rx_pkt_cnt
;
711 BNX2FC_STATS(hba
, rx_stat0
, fcoe_rx_byte_cnt
);
712 bnx2fc_stats
->rx_words
+= ((hba
->bfw_stats
.fcoe_rx_byte_cnt
) / 4);
714 bnx2fc_stats
->dumped_frames
= 0;
715 bnx2fc_stats
->lip_count
= 0;
716 bnx2fc_stats
->nos_count
= 0;
717 bnx2fc_stats
->loss_of_sync_count
= 0;
718 bnx2fc_stats
->loss_of_signal_count
= 0;
719 bnx2fc_stats
->prim_seq_protocol_err_count
= 0;
721 memcpy(&hba
->prev_stats
, hba
->stats_buffer
,
722 sizeof(struct fcoe_statistics_params
));
725 mutex_unlock(&hba
->hba_stats_mutex
);
729 static int bnx2fc_shost_config(struct fc_lport
*lport
, struct device
*dev
)
731 struct fcoe_port
*port
= lport_priv(lport
);
732 struct bnx2fc_interface
*interface
= port
->priv
;
733 struct bnx2fc_hba
*hba
= interface
->hba
;
734 struct Scsi_Host
*shost
= lport
->host
;
737 shost
->max_cmd_len
= BNX2FC_MAX_CMD_LEN
;
738 shost
->max_lun
= bnx2fc_max_luns
;
739 shost
->max_id
= BNX2FC_MAX_FCP_TGT
;
740 shost
->max_channel
= 0;
742 shost
->transportt
= bnx2fc_vport_xport_template
;
744 shost
->transportt
= bnx2fc_transport_template
;
746 /* Add the new host to SCSI-ml */
747 rc
= scsi_add_host(lport
->host
, dev
);
749 printk(KERN_ERR PFX
"Error on scsi_add_host\n");
753 fc_host_max_npiv_vports(lport
->host
) = USHRT_MAX
;
754 snprintf(fc_host_symbolic_name(lport
->host
), 256,
755 "%s (QLogic %s) v%s over %s",
756 BNX2FC_NAME
, hba
->chip_num
, BNX2FC_VERSION
,
757 interface
->netdev
->name
);
762 static int bnx2fc_link_ok(struct fc_lport
*lport
)
764 struct fcoe_port
*port
= lport_priv(lport
);
765 struct bnx2fc_interface
*interface
= port
->priv
;
766 struct bnx2fc_hba
*hba
= interface
->hba
;
767 struct net_device
*dev
= hba
->phys_dev
;
770 if ((dev
->flags
& IFF_UP
) && netif_carrier_ok(dev
))
771 clear_bit(ADAPTER_STATE_LINK_DOWN
, &hba
->adapter_state
);
773 set_bit(ADAPTER_STATE_LINK_DOWN
, &hba
->adapter_state
);
780 * bnx2fc_get_link_state - get network link state
782 * @hba: adapter instance pointer
784 * updates adapter structure flag based on netdev state
786 void bnx2fc_get_link_state(struct bnx2fc_hba
*hba
)
788 if (test_bit(__LINK_STATE_NOCARRIER
, &hba
->phys_dev
->state
))
789 set_bit(ADAPTER_STATE_LINK_DOWN
, &hba
->adapter_state
);
791 clear_bit(ADAPTER_STATE_LINK_DOWN
, &hba
->adapter_state
);
794 static int bnx2fc_net_config(struct fc_lport
*lport
, struct net_device
*netdev
)
796 struct bnx2fc_hba
*hba
;
797 struct bnx2fc_interface
*interface
;
798 struct fcoe_ctlr
*ctlr
;
799 struct fcoe_port
*port
;
802 port
= lport_priv(lport
);
803 interface
= port
->priv
;
804 ctlr
= bnx2fc_to_ctlr(interface
);
805 hba
= interface
->hba
;
807 /* require support for get_pauseparam ethtool op. */
808 if (!hba
->phys_dev
->ethtool_ops
||
809 !hba
->phys_dev
->ethtool_ops
->get_pauseparam
)
812 if (fc_set_mfs(lport
, BNX2FC_MFS
))
815 skb_queue_head_init(&port
->fcoe_pending_queue
);
816 port
->fcoe_pending_queue_active
= 0;
817 timer_setup(&port
->timer
, fcoe_queue_timer
, 0);
819 fcoe_link_speed_update(lport
);
822 if (fcoe_get_wwn(netdev
, &wwnn
, NETDEV_FCOE_WWNN
))
823 wwnn
= fcoe_wwn_from_mac(ctlr
->ctl_src_addr
,
825 BNX2FC_HBA_DBG(lport
, "WWNN = 0x%llx\n", wwnn
);
826 fc_set_wwnn(lport
, wwnn
);
828 if (fcoe_get_wwn(netdev
, &wwpn
, NETDEV_FCOE_WWPN
))
829 wwpn
= fcoe_wwn_from_mac(ctlr
->ctl_src_addr
,
832 BNX2FC_HBA_DBG(lport
, "WWPN = 0x%llx\n", wwpn
);
833 fc_set_wwpn(lport
, wwpn
);
839 static void bnx2fc_destroy_timer(struct timer_list
*t
)
841 struct bnx2fc_hba
*hba
= from_timer(hba
, t
, destroy_timer
);
843 printk(KERN_ERR PFX
"ERROR:bnx2fc_destroy_timer - "
844 "Destroy compl not received!!\n");
845 set_bit(BNX2FC_FLAG_DESTROY_CMPL
, &hba
->flags
);
846 wake_up_interruptible(&hba
->destroy_wait
);
850 * bnx2fc_indicate_netevent - Generic netdev event handler
852 * @context: adapter structure pointer
854 * @vlan_id: vlan id - associated vlan id with this event
856 * Handles NETDEV_UP, NETDEV_DOWN, NETDEV_GOING_DOWN,NETDEV_CHANGE and
857 * NETDEV_CHANGE_MTU events. Handle NETDEV_UNREGISTER only for vlans.
859 static void bnx2fc_indicate_netevent(void *context
, unsigned long event
,
862 struct bnx2fc_hba
*hba
= (struct bnx2fc_hba
*)context
;
863 struct fcoe_ctlr_device
*cdev
;
864 struct fc_lport
*lport
;
865 struct fc_lport
*vport
;
866 struct bnx2fc_interface
*interface
, *tmp
;
867 struct fcoe_ctlr
*ctlr
;
868 int wait_for_upload
= 0;
869 u32 link_possible
= 1;
871 if (vlan_id
!= 0 && event
!= NETDEV_UNREGISTER
)
876 if (!test_bit(ADAPTER_STATE_UP
, &hba
->adapter_state
))
877 printk(KERN_ERR
"indicate_netevent: "\
878 "hba is not UP!!\n");
882 clear_bit(ADAPTER_STATE_GOING_DOWN
, &hba
->adapter_state
);
883 clear_bit(ADAPTER_STATE_UP
, &hba
->adapter_state
);
887 case NETDEV_GOING_DOWN
:
888 set_bit(ADAPTER_STATE_GOING_DOWN
, &hba
->adapter_state
);
895 case NETDEV_UNREGISTER
:
898 mutex_lock(&bnx2fc_dev_lock
);
899 list_for_each_entry_safe(interface
, tmp
, &if_list
, list
) {
900 if (interface
->hba
== hba
&&
901 interface
->vlan_id
== (vlan_id
& VLAN_VID_MASK
))
902 __bnx2fc_destroy(interface
);
904 mutex_unlock(&bnx2fc_dev_lock
);
906 /* Ensure ALL destroy work has been completed before return */
907 flush_workqueue(bnx2fc_wq
);
914 mutex_lock(&bnx2fc_dev_lock
);
915 list_for_each_entry(interface
, &if_list
, list
) {
917 if (interface
->hba
!= hba
)
920 ctlr
= bnx2fc_to_ctlr(interface
);
922 BNX2FC_HBA_DBG(lport
, "netevent handler - event=%s %ld\n",
923 interface
->netdev
->name
, event
);
925 fcoe_link_speed_update(lport
);
927 cdev
= fcoe_ctlr_to_ctlr_dev(ctlr
);
929 if (link_possible
&& !bnx2fc_link_ok(lport
)) {
930 switch (cdev
->enabled
) {
931 case FCOE_CTLR_DISABLED
:
932 pr_info("Link up while interface is disabled.\n");
934 case FCOE_CTLR_ENABLED
:
935 case FCOE_CTLR_UNUSED
:
936 /* Reset max recv frame size to default */
937 fc_set_mfs(lport
, BNX2FC_MFS
);
939 * ctlr link up will only be handled during
940 * enable to avoid sending discovery
941 * solicitation on a stale vlan
943 if (interface
->enabled
)
944 fcoe_ctlr_link_up(ctlr
);
946 } else if (fcoe_ctlr_link_down(ctlr
)) {
947 switch (cdev
->enabled
) {
948 case FCOE_CTLR_DISABLED
:
949 pr_info("Link down while interface is disabled.\n");
951 case FCOE_CTLR_ENABLED
:
952 case FCOE_CTLR_UNUSED
:
953 mutex_lock(&lport
->lp_mutex
);
954 list_for_each_entry(vport
, &lport
->vports
, list
)
955 fc_host_port_type(vport
->host
) =
957 mutex_unlock(&lport
->lp_mutex
);
958 fc_host_port_type(lport
->host
) =
960 per_cpu_ptr(lport
->stats
,
961 get_cpu())->LinkFailureCount
++;
963 fcoe_clean_pending_queue(lport
);
968 mutex_unlock(&bnx2fc_dev_lock
);
970 if (wait_for_upload
) {
971 clear_bit(ADAPTER_STATE_READY
, &hba
->adapter_state
);
972 init_waitqueue_head(&hba
->shutdown_wait
);
973 BNX2FC_MISC_DBG("indicate_netevent "
974 "num_ofld_sess = %d\n",
976 hba
->wait_for_link_down
= 1;
977 wait_event_interruptible(hba
->shutdown_wait
,
978 (hba
->num_ofld_sess
== 0));
979 BNX2FC_MISC_DBG("wakeup - num_ofld_sess = %d\n",
981 hba
->wait_for_link_down
= 0;
983 if (signal_pending(current
))
984 flush_signals(current
);
988 static int bnx2fc_libfc_config(struct fc_lport
*lport
)
991 /* Set the function pointers set by bnx2fc driver */
992 memcpy(&lport
->tt
, &bnx2fc_libfc_fcn_templ
,
993 sizeof(struct libfc_function_template
));
994 fc_elsct_init(lport
);
997 fc_disc_config(lport
, lport
);
1001 static int bnx2fc_em_config(struct fc_lport
*lport
, struct bnx2fc_hba
*hba
)
1003 int fcoe_min_xid
, fcoe_max_xid
;
1005 fcoe_min_xid
= hba
->max_xid
+ 1;
1006 if (nr_cpu_ids
<= 2)
1007 fcoe_max_xid
= hba
->max_xid
+ FCOE_XIDS_PER_CPU_OFFSET
;
1009 fcoe_max_xid
= hba
->max_xid
+ FCOE_MAX_XID_OFFSET
;
1010 if (!fc_exch_mgr_alloc(lport
, FC_CLASS_3
, fcoe_min_xid
,
1011 fcoe_max_xid
, NULL
)) {
1012 printk(KERN_ERR PFX
"em_config:fc_exch_mgr_alloc failed\n");
1019 static int bnx2fc_lport_config(struct fc_lport
*lport
)
1023 lport
->max_retry_count
= BNX2FC_MAX_RETRY_CNT
;
1024 lport
->max_rport_retry_count
= BNX2FC_MAX_RPORT_RETRY_CNT
;
1025 lport
->e_d_tov
= 2 * 1000;
1026 lport
->r_a_tov
= 10 * 1000;
1028 lport
->service_params
= (FCP_SPPF_INIT_FCN
| FCP_SPPF_RD_XRDY_DIS
|
1029 FCP_SPPF_RETRY
| FCP_SPPF_CONF_COMPL
);
1030 lport
->does_npiv
= 1;
1032 memset(&lport
->rnid_gen
, 0, sizeof(struct fc_els_rnid_gen
));
1033 lport
->rnid_gen
.rnid_atype
= BNX2FC_RNID_HBA
;
1035 /* alloc stats structure */
1036 if (fc_lport_init_stats(lport
))
1039 /* Finish fc_lport configuration */
1040 fc_lport_config(lport
);
1046 * bnx2fc_fip_recv - handle a received FIP frame.
1048 * @skb: the received skb
1049 * @dev: associated &net_device
1050 * @ptype: the &packet_type structure which was used to register this handler.
1051 * @orig_dev: original receive &net_device, in case @ dev is a bond.
1053 * Returns: 0 for success
1055 static int bnx2fc_fip_recv(struct sk_buff
*skb
, struct net_device
*dev
,
1056 struct packet_type
*ptype
,
1057 struct net_device
*orig_dev
)
1059 struct bnx2fc_interface
*interface
;
1060 struct fcoe_ctlr
*ctlr
;
1061 interface
= container_of(ptype
, struct bnx2fc_interface
,
1063 ctlr
= bnx2fc_to_ctlr(interface
);
1064 fcoe_ctlr_recv(ctlr
, skb
);
1069 * bnx2fc_update_src_mac - Update Ethernet MAC filters.
1071 * @fip: FCoE controller.
1072 * @old: Unicast MAC address to delete if the MAC is non-zero.
1073 * @new: Unicast MAC address to add.
1075 * Remove any previously-set unicast MAC filter.
1076 * Add secondary FCoE MAC address filter for our OUI.
1078 static void bnx2fc_update_src_mac(struct fc_lport
*lport
, u8
*addr
)
1080 struct fcoe_port
*port
= lport_priv(lport
);
1082 memcpy(port
->data_src_addr
, addr
, ETH_ALEN
);
1086 * bnx2fc_get_src_mac - return the ethernet source address for an lport
1088 * @lport: libfc port
1090 static u8
*bnx2fc_get_src_mac(struct fc_lport
*lport
)
1092 struct fcoe_port
*port
;
1094 port
= (struct fcoe_port
*)lport_priv(lport
);
1095 return port
->data_src_addr
;
1099 * bnx2fc_fip_send - send an Ethernet-encapsulated FIP frame.
1101 * @fip: FCoE controller.
1104 static void bnx2fc_fip_send(struct fcoe_ctlr
*fip
, struct sk_buff
*skb
)
1106 struct fip_header
*fiph
;
1107 struct ethhdr
*eth_hdr
;
1111 fiph
= (struct fip_header
*) ((void *)skb
->data
+ 2 * ETH_ALEN
+ 2);
1112 eth_hdr
= (struct ethhdr
*)skb_mac_header(skb
);
1113 op
= ntohs(fiph
->fip_op
);
1114 sub
= fiph
->fip_subcode
;
1116 if (op
== FIP_OP_CTRL
&& sub
== FIP_SC_SOL
&& bnx2fc_log_fka
)
1117 BNX2FC_MISC_DBG("Sending FKA from %pM to %pM.\n",
1118 eth_hdr
->h_source
, eth_hdr
->h_dest
);
1120 skb
->dev
= bnx2fc_from_ctlr(fip
)->netdev
;
1121 dev_queue_xmit(skb
);
1124 static int bnx2fc_vport_create(struct fc_vport
*vport
, bool disabled
)
1126 struct Scsi_Host
*shost
= vport_to_shost(vport
);
1127 struct fc_lport
*n_port
= shost_priv(shost
);
1128 struct fcoe_port
*port
= lport_priv(n_port
);
1129 struct bnx2fc_interface
*interface
= port
->priv
;
1130 struct net_device
*netdev
= interface
->netdev
;
1131 struct fc_lport
*vn_port
;
1135 rc
= fcoe_validate_vport_create(vport
);
1137 fcoe_wwn_to_str(vport
->port_name
, buf
, sizeof(buf
));
1138 printk(KERN_ERR PFX
"Failed to create vport, "
1139 "WWPN (0x%s) already exists\n",
1144 if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE
, &interface
->hba
->flags
)) {
1145 printk(KERN_ERR PFX
"vn ports cannot be created on"
1146 "this interface\n");
1150 mutex_lock(&bnx2fc_dev_lock
);
1151 vn_port
= bnx2fc_if_create(interface
, &vport
->dev
, 1);
1152 mutex_unlock(&bnx2fc_dev_lock
);
1156 printk(KERN_ERR PFX
"bnx2fc_vport_create (%s) failed\n",
1161 if (bnx2fc_devloss_tmo
)
1162 fc_host_dev_loss_tmo(vn_port
->host
) = bnx2fc_devloss_tmo
;
1165 fc_vport_set_state(vport
, FC_VPORT_DISABLED
);
1167 vn_port
->boot_time
= jiffies
;
1168 fc_lport_init(vn_port
);
1169 fc_fabric_login(vn_port
);
1170 fc_vport_setlink(vn_port
);
1175 static void bnx2fc_free_vport(struct bnx2fc_hba
*hba
, struct fc_lport
*lport
)
1177 struct bnx2fc_lport
*blport
, *tmp
;
1179 spin_lock_bh(&hba
->hba_lock
);
1180 list_for_each_entry_safe(blport
, tmp
, &hba
->vports
, list
) {
1181 if (blport
->lport
== lport
) {
1182 list_del(&blport
->list
);
1186 spin_unlock_bh(&hba
->hba_lock
);
1189 static int bnx2fc_vport_destroy(struct fc_vport
*vport
)
1191 struct Scsi_Host
*shost
= vport_to_shost(vport
);
1192 struct fc_lport
*n_port
= shost_priv(shost
);
1193 struct fc_lport
*vn_port
= vport
->dd_data
;
1194 struct fcoe_port
*port
= lport_priv(vn_port
);
1195 struct bnx2fc_interface
*interface
= port
->priv
;
1196 struct fc_lport
*v_port
;
1199 mutex_lock(&n_port
->lp_mutex
);
1200 list_for_each_entry(v_port
, &n_port
->vports
, list
)
1201 if (v_port
->vport
== vport
) {
1207 mutex_unlock(&n_port
->lp_mutex
);
1210 list_del(&vn_port
->list
);
1211 mutex_unlock(&n_port
->lp_mutex
);
1212 bnx2fc_free_vport(interface
->hba
, port
->lport
);
1213 bnx2fc_port_shutdown(port
->lport
);
1214 bnx2fc_interface_put(interface
);
1215 queue_work(bnx2fc_wq
, &port
->destroy_work
);
1219 static int bnx2fc_vport_disable(struct fc_vport
*vport
, bool disable
)
1221 struct fc_lport
*lport
= vport
->dd_data
;
1224 fc_vport_set_state(vport
, FC_VPORT_DISABLED
);
1225 fc_fabric_logoff(lport
);
1227 lport
->boot_time
= jiffies
;
1228 fc_fabric_login(lport
);
1229 fc_vport_setlink(lport
);
1235 static int bnx2fc_interface_setup(struct bnx2fc_interface
*interface
)
1237 struct net_device
*netdev
= interface
->netdev
;
1238 struct net_device
*physdev
= interface
->hba
->phys_dev
;
1239 struct fcoe_ctlr
*ctlr
= bnx2fc_to_ctlr(interface
);
1240 struct netdev_hw_addr
*ha
;
1241 int sel_san_mac
= 0;
1243 /* setup Source MAC Address */
1245 for_each_dev_addr(physdev
, ha
) {
1246 BNX2FC_MISC_DBG("net_config: ha->type = %d, fip_mac = ",
1248 printk(KERN_INFO
"%2x:%2x:%2x:%2x:%2x:%2x\n", ha
->addr
[0],
1249 ha
->addr
[1], ha
->addr
[2], ha
->addr
[3],
1250 ha
->addr
[4], ha
->addr
[5]);
1252 if ((ha
->type
== NETDEV_HW_ADDR_T_SAN
) &&
1253 (is_valid_ether_addr(ha
->addr
))) {
1254 memcpy(ctlr
->ctl_src_addr
, ha
->addr
,
1257 BNX2FC_MISC_DBG("Found SAN MAC\n");
1265 interface
->fip_packet_type
.func
= bnx2fc_fip_recv
;
1266 interface
->fip_packet_type
.type
= htons(ETH_P_FIP
);
1267 interface
->fip_packet_type
.dev
= netdev
;
1268 dev_add_pack(&interface
->fip_packet_type
);
1270 interface
->fcoe_packet_type
.func
= bnx2fc_rcv
;
1271 interface
->fcoe_packet_type
.type
= __constant_htons(ETH_P_FCOE
);
1272 interface
->fcoe_packet_type
.dev
= netdev
;
1273 dev_add_pack(&interface
->fcoe_packet_type
);
1278 static int bnx2fc_attach_transport(void)
1280 bnx2fc_transport_template
=
1281 fc_attach_transport(&bnx2fc_transport_function
);
1283 if (bnx2fc_transport_template
== NULL
) {
1284 printk(KERN_ERR PFX
"Failed to attach FC transport\n");
1288 bnx2fc_vport_xport_template
=
1289 fc_attach_transport(&bnx2fc_vport_xport_function
);
1290 if (bnx2fc_vport_xport_template
== NULL
) {
1292 "Failed to attach FC transport for vport\n");
1293 fc_release_transport(bnx2fc_transport_template
);
1294 bnx2fc_transport_template
= NULL
;
1299 static void bnx2fc_release_transport(void)
1301 fc_release_transport(bnx2fc_transport_template
);
1302 fc_release_transport(bnx2fc_vport_xport_template
);
1303 bnx2fc_transport_template
= NULL
;
1304 bnx2fc_vport_xport_template
= NULL
;
1307 static void bnx2fc_interface_release(struct kref
*kref
)
1309 struct fcoe_ctlr_device
*ctlr_dev
;
1310 struct bnx2fc_interface
*interface
;
1311 struct fcoe_ctlr
*ctlr
;
1312 struct net_device
*netdev
;
1314 interface
= container_of(kref
, struct bnx2fc_interface
, kref
);
1315 BNX2FC_MISC_DBG("Interface is being released\n");
1317 ctlr
= bnx2fc_to_ctlr(interface
);
1318 ctlr_dev
= fcoe_ctlr_to_ctlr_dev(ctlr
);
1319 netdev
= interface
->netdev
;
1321 /* tear-down FIP controller */
1322 if (test_and_clear_bit(BNX2FC_CTLR_INIT_DONE
, &interface
->if_flags
))
1323 fcoe_ctlr_destroy(ctlr
);
1325 fcoe_ctlr_device_delete(ctlr_dev
);
1328 module_put(THIS_MODULE
);
1331 static inline void bnx2fc_interface_get(struct bnx2fc_interface
*interface
)
1333 kref_get(&interface
->kref
);
1336 static inline void bnx2fc_interface_put(struct bnx2fc_interface
*interface
)
1338 kref_put(&interface
->kref
, bnx2fc_interface_release
);
1340 static void bnx2fc_hba_destroy(struct bnx2fc_hba
*hba
)
1342 /* Free the command manager */
1344 bnx2fc_cmd_mgr_free(hba
->cmd_mgr
);
1345 hba
->cmd_mgr
= NULL
;
1347 kfree(hba
->tgt_ofld_list
);
1348 bnx2fc_unbind_pcidev(hba
);
1353 * bnx2fc_hba_create - create a new bnx2fc hba
1355 * @cnic: pointer to cnic device
1357 * Creates a new FCoE hba on the given device.
1360 static struct bnx2fc_hba
*bnx2fc_hba_create(struct cnic_dev
*cnic
)
1362 struct bnx2fc_hba
*hba
;
1363 struct fcoe_capabilities
*fcoe_cap
;
1366 hba
= kzalloc(sizeof(*hba
), GFP_KERNEL
);
1368 printk(KERN_ERR PFX
"Unable to allocate hba structure\n");
1371 spin_lock_init(&hba
->hba_lock
);
1372 mutex_init(&hba
->hba_mutex
);
1373 mutex_init(&hba
->hba_stats_mutex
);
1377 hba
->max_tasks
= cnic
->max_fcoe_exchanges
;
1378 hba
->elstm_xids
= (hba
->max_tasks
/ 2);
1379 hba
->max_outstanding_cmds
= hba
->elstm_xids
;
1380 hba
->max_xid
= (hba
->max_tasks
- 1);
1382 rc
= bnx2fc_bind_pcidev(hba
);
1384 printk(KERN_ERR PFX
"create_adapter: bind error\n");
1387 hba
->phys_dev
= cnic
->netdev
;
1388 hba
->next_conn_id
= 0;
1390 hba
->tgt_ofld_list
=
1391 kcalloc(BNX2FC_NUM_MAX_SESS
, sizeof(struct bnx2fc_rport
*),
1393 if (!hba
->tgt_ofld_list
) {
1394 printk(KERN_ERR PFX
"Unable to allocate tgt offload list\n");
1398 hba
->num_ofld_sess
= 0;
1400 hba
->cmd_mgr
= bnx2fc_cmd_mgr_alloc(hba
);
1401 if (!hba
->cmd_mgr
) {
1402 printk(KERN_ERR PFX
"em_config:bnx2fc_cmd_mgr_alloc failed\n");
1405 fcoe_cap
= &hba
->fcoe_cap
;
1407 fcoe_cap
->capability1
= BNX2FC_TM_MAX_SQES
<<
1408 FCOE_IOS_PER_CONNECTION_SHIFT
;
1409 fcoe_cap
->capability1
|= BNX2FC_NUM_MAX_SESS
<<
1410 FCOE_LOGINS_PER_PORT_SHIFT
;
1411 fcoe_cap
->capability2
= hba
->max_outstanding_cmds
<<
1412 FCOE_NUMBER_OF_EXCHANGES_SHIFT
;
1413 fcoe_cap
->capability2
|= BNX2FC_MAX_NPIV
<<
1414 FCOE_NPIV_WWN_PER_PORT_SHIFT
;
1415 fcoe_cap
->capability3
= BNX2FC_NUM_MAX_SESS
<<
1416 FCOE_TARGETS_SUPPORTED_SHIFT
;
1417 fcoe_cap
->capability3
|= hba
->max_outstanding_cmds
<<
1418 FCOE_OUTSTANDING_COMMANDS_SHIFT
;
1419 fcoe_cap
->capability4
= FCOE_CAPABILITY4_STATEFUL
;
1421 init_waitqueue_head(&hba
->shutdown_wait
);
1422 init_waitqueue_head(&hba
->destroy_wait
);
1423 INIT_LIST_HEAD(&hba
->vports
);
1428 kfree(hba
->tgt_ofld_list
);
1430 bnx2fc_unbind_pcidev(hba
);
1436 static struct bnx2fc_interface
*
1437 bnx2fc_interface_create(struct bnx2fc_hba
*hba
,
1438 struct net_device
*netdev
,
1439 enum fip_mode fip_mode
)
1441 struct fcoe_ctlr_device
*ctlr_dev
;
1442 struct bnx2fc_interface
*interface
;
1443 struct fcoe_ctlr
*ctlr
;
1447 size
= (sizeof(*interface
) + sizeof(struct fcoe_ctlr
));
1448 ctlr_dev
= fcoe_ctlr_device_add(&netdev
->dev
, &bnx2fc_fcoe_sysfs_templ
,
1451 printk(KERN_ERR PFX
"Unable to allocate interface structure\n");
1454 ctlr
= fcoe_ctlr_device_priv(ctlr_dev
);
1455 ctlr
->cdev
= ctlr_dev
;
1456 interface
= fcoe_ctlr_priv(ctlr
);
1458 kref_init(&interface
->kref
);
1459 interface
->hba
= hba
;
1460 interface
->netdev
= netdev
;
1462 /* Initialize FIP */
1463 fcoe_ctlr_init(ctlr
, fip_mode
);
1464 ctlr
->send
= bnx2fc_fip_send
;
1465 ctlr
->update_mac
= bnx2fc_update_src_mac
;
1466 ctlr
->get_src_addr
= bnx2fc_get_src_mac
;
1467 set_bit(BNX2FC_CTLR_INIT_DONE
, &interface
->if_flags
);
1469 rc
= bnx2fc_interface_setup(interface
);
1473 fcoe_ctlr_destroy(ctlr
);
1475 fcoe_ctlr_device_delete(ctlr_dev
);
1480 * bnx2fc_if_create - Create FCoE instance on a given interface
1482 * @interface: FCoE interface to create a local port on
1483 * @parent: Device pointer to be the parent in sysfs for the SCSI host
1484 * @npiv: Indicates if the port is vport or not
1486 * Creates a fc_lport instance and a Scsi_Host instance and configure them.
1488 * Returns: Allocated fc_lport or an error pointer
1490 static struct fc_lport
*bnx2fc_if_create(struct bnx2fc_interface
*interface
,
1491 struct device
*parent
, int npiv
)
1493 struct fcoe_ctlr
*ctlr
= bnx2fc_to_ctlr(interface
);
1494 struct fc_lport
*lport
, *n_port
;
1495 struct fcoe_port
*port
;
1496 struct Scsi_Host
*shost
;
1497 struct fc_vport
*vport
= dev_to_vport(parent
);
1498 struct bnx2fc_lport
*blport
;
1499 struct bnx2fc_hba
*hba
= interface
->hba
;
1502 blport
= kzalloc(sizeof(struct bnx2fc_lport
), GFP_KERNEL
);
1504 BNX2FC_HBA_DBG(ctlr
->lp
, "Unable to alloc blport\n");
1508 /* Allocate Scsi_Host structure */
1509 bnx2fc_shost_template
.can_queue
= hba
->max_outstanding_cmds
;
1511 lport
= libfc_host_alloc(&bnx2fc_shost_template
, sizeof(*port
));
1513 lport
= libfc_vport_create(vport
, sizeof(*port
));
1516 printk(KERN_ERR PFX
"could not allocate scsi host structure\n");
1519 shost
= lport
->host
;
1520 port
= lport_priv(lport
);
1521 port
->lport
= lport
;
1522 port
->priv
= interface
;
1523 port
->get_netdev
= bnx2fc_netdev
;
1524 INIT_WORK(&port
->destroy_work
, bnx2fc_destroy_work
);
1526 /* Configure fcoe_port */
1527 rc
= bnx2fc_lport_config(lport
);
1532 printk(KERN_ERR PFX
"Setting vport names, 0x%llX 0x%llX\n",
1533 vport
->node_name
, vport
->port_name
);
1534 fc_set_wwnn(lport
, vport
->node_name
);
1535 fc_set_wwpn(lport
, vport
->port_name
);
1537 /* Configure netdev and networking properties of the lport */
1538 rc
= bnx2fc_net_config(lport
, interface
->netdev
);
1540 printk(KERN_ERR PFX
"Error on bnx2fc_net_config\n");
1544 rc
= bnx2fc_shost_config(lport
, parent
);
1546 printk(KERN_ERR PFX
"Couldn't configure shost for %s\n",
1547 interface
->netdev
->name
);
1551 /* Initialize the libfc library */
1552 rc
= bnx2fc_libfc_config(lport
);
1554 printk(KERN_ERR PFX
"Couldn't configure libfc\n");
1557 fc_host_port_type(lport
->host
) = FC_PORTTYPE_UNKNOWN
;
1559 if (bnx2fc_devloss_tmo
)
1560 fc_host_dev_loss_tmo(shost
) = bnx2fc_devloss_tmo
;
1562 /* Allocate exchange manager */
1564 rc
= bnx2fc_em_config(lport
, hba
);
1566 shost
= vport_to_shost(vport
);
1567 n_port
= shost_priv(shost
);
1568 rc
= fc_exch_mgr_list_clone(n_port
, lport
);
1572 printk(KERN_ERR PFX
"Error on bnx2fc_em_config\n");
1576 bnx2fc_interface_get(interface
);
1578 spin_lock_bh(&hba
->hba_lock
);
1579 blport
->lport
= lport
;
1580 list_add_tail(&blport
->list
, &hba
->vports
);
1581 spin_unlock_bh(&hba
->hba_lock
);
1586 scsi_remove_host(shost
);
1588 scsi_host_put(lport
->host
);
1594 static void bnx2fc_net_cleanup(struct bnx2fc_interface
*interface
)
1596 /* Dont listen for Ethernet packets anymore */
1597 __dev_remove_pack(&interface
->fcoe_packet_type
);
1598 __dev_remove_pack(&interface
->fip_packet_type
);
1602 static void bnx2fc_interface_cleanup(struct bnx2fc_interface
*interface
)
1604 struct fcoe_ctlr
*ctlr
= bnx2fc_to_ctlr(interface
);
1605 struct fc_lport
*lport
= ctlr
->lp
;
1606 struct fcoe_port
*port
= lport_priv(lport
);
1607 struct bnx2fc_hba
*hba
= interface
->hba
;
1609 /* Stop the transmit retry timer */
1610 del_timer_sync(&port
->timer
);
1612 /* Free existing transmit skbs */
1613 fcoe_clean_pending_queue(lport
);
1615 bnx2fc_net_cleanup(interface
);
1617 bnx2fc_free_vport(hba
, lport
);
1620 static void bnx2fc_if_destroy(struct fc_lport
*lport
)
1623 /* Free queued packets for the receive thread */
1624 bnx2fc_clean_rx_queue(lport
);
1626 /* Detach from scsi-ml */
1627 fc_remove_host(lport
->host
);
1628 scsi_remove_host(lport
->host
);
1631 * Note that only the physical lport will have the exchange manager.
1632 * for vports, this function is NOP
1634 fc_exch_mgr_free(lport
);
1636 /* Free memory used by statistical counters */
1637 fc_lport_free_stats(lport
);
1639 /* Release Scsi_Host */
1640 scsi_host_put(lport
->host
);
1643 static void __bnx2fc_destroy(struct bnx2fc_interface
*interface
)
1645 struct fcoe_ctlr
*ctlr
= bnx2fc_to_ctlr(interface
);
1646 struct fc_lport
*lport
= ctlr
->lp
;
1647 struct fcoe_port
*port
= lport_priv(lport
);
1649 bnx2fc_interface_cleanup(interface
);
1650 bnx2fc_stop(interface
);
1651 list_del(&interface
->list
);
1652 bnx2fc_interface_put(interface
);
1653 queue_work(bnx2fc_wq
, &port
->destroy_work
);
1657 * bnx2fc_destroy - Destroy a bnx2fc FCoE interface
1659 * @buffer: The name of the Ethernet interface to be destroyed
1660 * @kp: The associated kernel parameter
1662 * Called from sysfs.
1664 * Returns: 0 for success
1666 static int bnx2fc_destroy(struct net_device
*netdev
)
1668 struct bnx2fc_interface
*interface
= NULL
;
1669 struct workqueue_struct
*timer_work_queue
;
1670 struct fcoe_ctlr
*ctlr
;
1674 mutex_lock(&bnx2fc_dev_lock
);
1676 interface
= bnx2fc_interface_lookup(netdev
);
1677 ctlr
= bnx2fc_to_ctlr(interface
);
1678 if (!interface
|| !ctlr
->lp
) {
1680 printk(KERN_ERR PFX
"bnx2fc_destroy: interface or lport not found\n");
1684 timer_work_queue
= interface
->timer_work_queue
;
1685 __bnx2fc_destroy(interface
);
1686 destroy_workqueue(timer_work_queue
);
1689 mutex_unlock(&bnx2fc_dev_lock
);
1694 static void bnx2fc_destroy_work(struct work_struct
*work
)
1696 struct fcoe_port
*port
;
1697 struct fc_lport
*lport
;
1699 port
= container_of(work
, struct fcoe_port
, destroy_work
);
1700 lport
= port
->lport
;
1702 BNX2FC_HBA_DBG(lport
, "Entered bnx2fc_destroy_work\n");
1704 bnx2fc_if_destroy(lport
);
1707 static void bnx2fc_unbind_adapter_devices(struct bnx2fc_hba
*hba
)
1709 bnx2fc_free_fw_resc(hba
);
1710 bnx2fc_free_task_ctx(hba
);
1714 * bnx2fc_bind_adapter_devices - binds bnx2fc adapter with the associated
1717 * @hba: Adapter instance
1719 static int bnx2fc_bind_adapter_devices(struct bnx2fc_hba
*hba
)
1721 if (bnx2fc_setup_task_ctx(hba
))
1724 if (bnx2fc_setup_fw_resc(hba
))
1729 bnx2fc_unbind_adapter_devices(hba
);
1733 static int bnx2fc_bind_pcidev(struct bnx2fc_hba
*hba
)
1735 struct cnic_dev
*cnic
;
1736 struct pci_dev
*pdev
;
1739 printk(KERN_ERR PFX
"cnic is NULL\n");
1743 pdev
= hba
->pcidev
= cnic
->pcidev
;
1747 switch (pdev
->device
) {
1748 case PCI_DEVICE_ID_NX2_57710
:
1749 strncpy(hba
->chip_num
, "BCM57710", BCM_CHIP_LEN
);
1751 case PCI_DEVICE_ID_NX2_57711
:
1752 strncpy(hba
->chip_num
, "BCM57711", BCM_CHIP_LEN
);
1754 case PCI_DEVICE_ID_NX2_57712
:
1755 case PCI_DEVICE_ID_NX2_57712_MF
:
1756 case PCI_DEVICE_ID_NX2_57712_VF
:
1757 strncpy(hba
->chip_num
, "BCM57712", BCM_CHIP_LEN
);
1759 case PCI_DEVICE_ID_NX2_57800
:
1760 case PCI_DEVICE_ID_NX2_57800_MF
:
1761 case PCI_DEVICE_ID_NX2_57800_VF
:
1762 strncpy(hba
->chip_num
, "BCM57800", BCM_CHIP_LEN
);
1764 case PCI_DEVICE_ID_NX2_57810
:
1765 case PCI_DEVICE_ID_NX2_57810_MF
:
1766 case PCI_DEVICE_ID_NX2_57810_VF
:
1767 strncpy(hba
->chip_num
, "BCM57810", BCM_CHIP_LEN
);
1769 case PCI_DEVICE_ID_NX2_57840
:
1770 case PCI_DEVICE_ID_NX2_57840_MF
:
1771 case PCI_DEVICE_ID_NX2_57840_VF
:
1772 case PCI_DEVICE_ID_NX2_57840_2_20
:
1773 case PCI_DEVICE_ID_NX2_57840_4_10
:
1774 strncpy(hba
->chip_num
, "BCM57840", BCM_CHIP_LEN
);
1777 pr_err(PFX
"Unknown device id 0x%x\n", pdev
->device
);
1780 pci_dev_get(hba
->pcidev
);
1784 static void bnx2fc_unbind_pcidev(struct bnx2fc_hba
*hba
)
1787 hba
->chip_num
[0] = '\0';
1788 pci_dev_put(hba
->pcidev
);
1794 * bnx2fc_ulp_get_stats - cnic callback to populate FCoE stats
1796 * @handle: transport handle pointing to adapter struture
1798 static int bnx2fc_ulp_get_stats(void *handle
)
1800 struct bnx2fc_hba
*hba
= handle
;
1801 struct cnic_dev
*cnic
;
1802 struct fcoe_stats_info
*stats_addr
;
1808 stats_addr
= &cnic
->stats_addr
->fcoe_stat
;
1812 strncpy(stats_addr
->version
, BNX2FC_VERSION
,
1813 sizeof(stats_addr
->version
));
1814 stats_addr
->txq_size
= BNX2FC_SQ_WQES_MAX
;
1815 stats_addr
->rxq_size
= BNX2FC_CQ_WQES_MAX
;
1822 * bnx2fc_ulp_start - cnic callback to initialize & start adapter instance
1824 * @handle: transport handle pointing to adapter structure
1826 * This function maps adapter structure to pcidev structure and initiates
1827 * firmware handshake to enable/initialize on-chip FCoE components.
1828 * This bnx2fc - cnic interface api callback is used after following
1829 * conditions are met -
1830 * a) underlying network interface is up (marked by event NETDEV_UP
1832 * b) bnx2fc adatper structure is registered.
1834 static void bnx2fc_ulp_start(void *handle
)
1836 struct bnx2fc_hba
*hba
= handle
;
1837 struct bnx2fc_interface
*interface
;
1838 struct fcoe_ctlr
*ctlr
;
1839 struct fc_lport
*lport
;
1841 mutex_lock(&bnx2fc_dev_lock
);
1843 if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE
, &hba
->flags
))
1844 bnx2fc_fw_init(hba
);
1846 BNX2FC_MISC_DBG("bnx2fc started.\n");
1848 list_for_each_entry(interface
, &if_list
, list
) {
1849 if (interface
->hba
== hba
) {
1850 ctlr
= bnx2fc_to_ctlr(interface
);
1852 /* Kick off Fabric discovery*/
1853 printk(KERN_ERR PFX
"ulp_init: start discovery\n");
1854 lport
->tt
.frame_send
= bnx2fc_xmit
;
1855 bnx2fc_start_disc(interface
);
1859 mutex_unlock(&bnx2fc_dev_lock
);
1862 static void bnx2fc_port_shutdown(struct fc_lport
*lport
)
1864 BNX2FC_MISC_DBG("Entered %s\n", __func__
);
1865 fc_fabric_logoff(lport
);
1866 fc_lport_destroy(lport
);
1869 static void bnx2fc_stop(struct bnx2fc_interface
*interface
)
1871 struct fcoe_ctlr
*ctlr
= bnx2fc_to_ctlr(interface
);
1872 struct fc_lport
*lport
;
1873 struct fc_lport
*vport
;
1875 if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE
, &interface
->hba
->flags
))
1879 bnx2fc_port_shutdown(lport
);
1881 mutex_lock(&lport
->lp_mutex
);
1882 list_for_each_entry(vport
, &lport
->vports
, list
)
1883 fc_host_port_type(vport
->host
) =
1884 FC_PORTTYPE_UNKNOWN
;
1885 mutex_unlock(&lport
->lp_mutex
);
1886 fc_host_port_type(lport
->host
) = FC_PORTTYPE_UNKNOWN
;
1887 fcoe_ctlr_link_down(ctlr
);
1888 fcoe_clean_pending_queue(lport
);
1891 static int bnx2fc_fw_init(struct bnx2fc_hba
*hba
)
1893 #define BNX2FC_INIT_POLL_TIME (1000 / HZ)
1897 rc
= bnx2fc_bind_adapter_devices(hba
);
1899 printk(KERN_ALERT PFX
1900 "bnx2fc_bind_adapter_devices failed - rc = %d\n", rc
);
1904 rc
= bnx2fc_send_fw_fcoe_init_msg(hba
);
1906 printk(KERN_ALERT PFX
1907 "bnx2fc_send_fw_fcoe_init_msg failed - rc = %d\n", rc
);
1912 * Wait until the adapter init message is complete, and adapter
1915 while (!test_bit(ADAPTER_STATE_UP
, &hba
->adapter_state
) && i
--)
1916 msleep(BNX2FC_INIT_POLL_TIME
);
1918 if (!test_bit(ADAPTER_STATE_UP
, &hba
->adapter_state
)) {
1919 printk(KERN_ERR PFX
"bnx2fc_start: %s failed to initialize. "
1921 hba
->cnic
->netdev
->name
);
1927 set_bit(BNX2FC_FLAG_FW_INIT_DONE
, &hba
->flags
);
1931 bnx2fc_unbind_adapter_devices(hba
);
1936 static void bnx2fc_fw_destroy(struct bnx2fc_hba
*hba
)
1938 if (test_and_clear_bit(BNX2FC_FLAG_FW_INIT_DONE
, &hba
->flags
)) {
1939 if (bnx2fc_send_fw_fcoe_destroy_msg(hba
) == 0) {
1940 timer_setup(&hba
->destroy_timer
, bnx2fc_destroy_timer
,
1942 hba
->destroy_timer
.expires
= BNX2FC_FW_TIMEOUT
+
1944 add_timer(&hba
->destroy_timer
);
1945 wait_event_interruptible(hba
->destroy_wait
,
1946 test_bit(BNX2FC_FLAG_DESTROY_CMPL
,
1948 clear_bit(BNX2FC_FLAG_DESTROY_CMPL
, &hba
->flags
);
1949 /* This should never happen */
1950 if (signal_pending(current
))
1951 flush_signals(current
);
1953 del_timer_sync(&hba
->destroy_timer
);
1955 bnx2fc_unbind_adapter_devices(hba
);
1960 * bnx2fc_ulp_stop - cnic callback to shutdown adapter instance
1962 * @handle: transport handle pointing to adapter structure
1964 * Driver checks if adapter is already in shutdown mode, if not start
1965 * the shutdown process.
1967 static void bnx2fc_ulp_stop(void *handle
)
1969 struct bnx2fc_hba
*hba
= handle
;
1970 struct bnx2fc_interface
*interface
;
1972 printk(KERN_ERR
"ULP_STOP\n");
1974 mutex_lock(&bnx2fc_dev_lock
);
1975 if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE
, &hba
->flags
))
1977 list_for_each_entry(interface
, &if_list
, list
) {
1978 if (interface
->hba
== hba
)
1979 bnx2fc_stop(interface
);
1981 BUG_ON(hba
->num_ofld_sess
!= 0);
1983 mutex_lock(&hba
->hba_mutex
);
1984 clear_bit(ADAPTER_STATE_UP
, &hba
->adapter_state
);
1985 clear_bit(ADAPTER_STATE_GOING_DOWN
,
1986 &hba
->adapter_state
);
1988 clear_bit(ADAPTER_STATE_READY
, &hba
->adapter_state
);
1989 mutex_unlock(&hba
->hba_mutex
);
1991 bnx2fc_fw_destroy(hba
);
1993 mutex_unlock(&bnx2fc_dev_lock
);
1996 static void bnx2fc_start_disc(struct bnx2fc_interface
*interface
)
1998 struct fcoe_ctlr
*ctlr
= bnx2fc_to_ctlr(interface
);
1999 struct fc_lport
*lport
;
2002 BNX2FC_MISC_DBG("Entered %s\n", __func__
);
2003 /* Kick off FIP/FLOGI */
2004 if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE
, &interface
->hba
->flags
)) {
2005 printk(KERN_ERR PFX
"Init not done yet\n");
2010 BNX2FC_HBA_DBG(lport
, "calling fc_fabric_login\n");
2012 if (!bnx2fc_link_ok(lport
) && interface
->enabled
) {
2013 BNX2FC_HBA_DBG(lport
, "ctlr_link_up\n");
2014 fcoe_ctlr_link_up(ctlr
);
2015 fc_host_port_type(lport
->host
) = FC_PORTTYPE_NPORT
;
2016 set_bit(ADAPTER_STATE_READY
, &interface
->hba
->adapter_state
);
2019 /* wait for the FCF to be selected before issuing FLOGI */
2020 while (!ctlr
->sel_fcf
) {
2022 /* give up after 3 secs */
2023 if (++wait_cnt
> 12)
2027 /* Reset max receive frame size to default */
2028 if (fc_set_mfs(lport
, BNX2FC_MFS
))
2031 fc_lport_init(lport
);
2032 fc_fabric_login(lport
);
2037 * bnx2fc_ulp_init - Initialize an adapter instance
2039 * @dev : cnic device handle
2040 * Called from cnic_register_driver() context to initialize all
2041 * enumerated cnic devices. This routine allocates adapter structure
2042 * and other device specific resources.
2044 static void bnx2fc_ulp_init(struct cnic_dev
*dev
)
2046 struct bnx2fc_hba
*hba
;
2049 BNX2FC_MISC_DBG("Entered %s\n", __func__
);
2050 /* bnx2fc works only when bnx2x is loaded */
2051 if (!test_bit(CNIC_F_BNX2X_CLASS
, &dev
->flags
) ||
2052 (dev
->max_fcoe_conn
== 0)) {
2053 printk(KERN_ERR PFX
"bnx2fc FCoE not supported on %s,"
2054 " flags: %lx fcoe_conn: %d\n",
2055 dev
->netdev
->name
, dev
->flags
, dev
->max_fcoe_conn
);
2059 hba
= bnx2fc_hba_create(dev
);
2061 printk(KERN_ERR PFX
"hba initialization failed\n");
2065 pr_info(PFX
"FCoE initialized for %s.\n", dev
->netdev
->name
);
2067 /* Add HBA to the adapter list */
2068 mutex_lock(&bnx2fc_dev_lock
);
2069 list_add_tail(&hba
->list
, &adapter_list
);
2071 mutex_unlock(&bnx2fc_dev_lock
);
2073 dev
->fcoe_cap
= &hba
->fcoe_cap
;
2074 clear_bit(BNX2FC_CNIC_REGISTERED
, &hba
->reg_with_cnic
);
2075 rc
= dev
->register_device(dev
, CNIC_ULP_FCOE
,
2078 printk(KERN_ERR PFX
"register_device failed, rc = %d\n", rc
);
2080 set_bit(BNX2FC_CNIC_REGISTERED
, &hba
->reg_with_cnic
);
2083 /* Assumes rtnl_lock and the bnx2fc_dev_lock are already taken */
2084 static int __bnx2fc_disable(struct fcoe_ctlr
*ctlr
)
2086 struct bnx2fc_interface
*interface
= fcoe_ctlr_priv(ctlr
);
2088 if (interface
->enabled
== true) {
2090 pr_err(PFX
"__bnx2fc_disable: lport not found\n");
2093 interface
->enabled
= false;
2094 fcoe_ctlr_link_down(ctlr
);
2095 fcoe_clean_pending_queue(ctlr
->lp
);
2102 * Deperecated: Use bnx2fc_enabled()
2104 static int bnx2fc_disable(struct net_device
*netdev
)
2106 struct bnx2fc_interface
*interface
;
2107 struct fcoe_ctlr
*ctlr
;
2111 mutex_lock(&bnx2fc_dev_lock
);
2113 interface
= bnx2fc_interface_lookup(netdev
);
2114 ctlr
= bnx2fc_to_ctlr(interface
);
2118 pr_err(PFX
"bnx2fc_disable: interface not found\n");
2120 rc
= __bnx2fc_disable(ctlr
);
2122 mutex_unlock(&bnx2fc_dev_lock
);
2127 static uint
bnx2fc_npiv_create_vports(struct fc_lport
*lport
,
2128 struct cnic_fc_npiv_tbl
*npiv_tbl
)
2130 struct fc_vport_identifiers vpid
;
2131 uint i
, created
= 0;
2136 if (npiv_tbl
->count
> MAX_NPIV_ENTRIES
) {
2137 BNX2FC_HBA_DBG(lport
, "Exceeded count max of npiv table\n");
2141 /* Sanity check the first entry to make sure it's not 0 */
2142 if (wwn_to_u64(npiv_tbl
->wwnn
[0]) == 0 &&
2143 wwn_to_u64(npiv_tbl
->wwpn
[0]) == 0) {
2144 BNX2FC_HBA_DBG(lport
, "First NPIV table entries invalid.\n");
2148 vpid
.roles
= FC_PORT_ROLE_FCP_INITIATOR
;
2149 vpid
.vport_type
= FC_PORTTYPE_NPIV
;
2150 vpid
.disable
= false;
2152 for (i
= 0; i
< npiv_tbl
->count
; i
++) {
2153 wwnn
= wwn_to_u64(npiv_tbl
->wwnn
[i
]);
2156 * If we get a 0 element from for the WWNN then assume
2157 * the WWNN should be the same as the physical port.
2161 vpid
.node_name
= wwnn
;
2162 vpid
.port_name
= wwn_to_u64(npiv_tbl
->wwpn
[i
]);
2163 scnprintf(vpid
.symbolic_name
, sizeof(vpid
.symbolic_name
),
2164 "NPIV[%u]:%016llx-%016llx",
2165 created
, vpid
.port_name
, vpid
.node_name
);
2166 fcoe_wwn_to_str(vpid
.node_name
, wwnn_str
, sizeof(wwnn_str
));
2167 fcoe_wwn_to_str(vpid
.port_name
, wwpn_str
, sizeof(wwpn_str
));
2168 BNX2FC_HBA_DBG(lport
, "Creating vport %s:%s.\n", wwnn_str
,
2170 if (fc_vport_create(lport
->host
, 0, &vpid
))
2173 BNX2FC_HBA_DBG(lport
, "Failed to create vport\n");
2179 static int __bnx2fc_enable(struct fcoe_ctlr
*ctlr
)
2181 struct bnx2fc_interface
*interface
= fcoe_ctlr_priv(ctlr
);
2182 struct bnx2fc_hba
*hba
;
2183 struct cnic_fc_npiv_tbl
*npiv_tbl
;
2184 struct fc_lport
*lport
;
2186 if (interface
->enabled
== false) {
2188 pr_err(PFX
"__bnx2fc_enable: lport not found\n");
2190 } else if (!bnx2fc_link_ok(ctlr
->lp
)) {
2191 fcoe_ctlr_link_up(ctlr
);
2192 interface
->enabled
= true;
2196 /* Create static NPIV ports if any are contained in NVRAM */
2197 hba
= interface
->hba
;
2212 if (!hba
->cnic
->get_fc_npiv_tbl
)
2215 npiv_tbl
= kzalloc(sizeof(struct cnic_fc_npiv_tbl
), GFP_KERNEL
);
2219 if (hba
->cnic
->get_fc_npiv_tbl(hba
->cnic
, npiv_tbl
))
2222 bnx2fc_npiv_create_vports(lport
, npiv_tbl
);
2230 * Deprecated: Use bnx2fc_enabled()
2232 static int bnx2fc_enable(struct net_device
*netdev
)
2234 struct bnx2fc_interface
*interface
;
2235 struct fcoe_ctlr
*ctlr
;
2239 mutex_lock(&bnx2fc_dev_lock
);
2241 interface
= bnx2fc_interface_lookup(netdev
);
2242 ctlr
= bnx2fc_to_ctlr(interface
);
2245 pr_err(PFX
"bnx2fc_enable: interface not found\n");
2247 rc
= __bnx2fc_enable(ctlr
);
2250 mutex_unlock(&bnx2fc_dev_lock
);
2256 * bnx2fc_ctlr_enabled() - Enable or disable an FCoE Controller
2257 * @cdev: The FCoE Controller that is being enabled or disabled
2259 * fcoe_sysfs will ensure that the state of 'enabled' has
2260 * changed, so no checking is necessary here. This routine simply
2261 * calls fcoe_enable or fcoe_disable, both of which are deprecated.
2262 * When those routines are removed the functionality can be merged
2265 static int bnx2fc_ctlr_enabled(struct fcoe_ctlr_device
*cdev
)
2267 struct fcoe_ctlr
*ctlr
= fcoe_ctlr_device_priv(cdev
);
2269 switch (cdev
->enabled
) {
2270 case FCOE_CTLR_ENABLED
:
2271 return __bnx2fc_enable(ctlr
);
2272 case FCOE_CTLR_DISABLED
:
2273 return __bnx2fc_disable(ctlr
);
2274 case FCOE_CTLR_UNUSED
:
2280 enum bnx2fc_create_link_state
{
2281 BNX2FC_CREATE_LINK_DOWN
,
2282 BNX2FC_CREATE_LINK_UP
,
2286 * _bnx2fc_create() - Create bnx2fc FCoE interface
2287 * @netdev : The net_device object the Ethernet interface to create on
2288 * @fip_mode: The FIP mode for this creation
2289 * @link_state: The ctlr link state on creation
2291 * Called from either the libfcoe 'create' module parameter
2292 * via fcoe_create or from fcoe_syfs's ctlr_create file.
2294 * libfcoe's 'create' module parameter is deprecated so some
2295 * consolidation of code can be done when that interface is
2298 * Returns: 0 for success
2300 static int _bnx2fc_create(struct net_device
*netdev
,
2301 enum fip_mode fip_mode
,
2302 enum bnx2fc_create_link_state link_state
)
2304 struct fcoe_ctlr_device
*cdev
;
2305 struct fcoe_ctlr
*ctlr
;
2306 struct bnx2fc_interface
*interface
;
2307 struct bnx2fc_hba
*hba
;
2308 struct net_device
*phys_dev
= netdev
;
2309 struct fc_lport
*lport
;
2310 struct ethtool_drvinfo drvinfo
;
2314 BNX2FC_MISC_DBG("Entered bnx2fc_create\n");
2315 if (fip_mode
!= FIP_MODE_FABRIC
) {
2316 printk(KERN_ERR
"fip mode not FABRIC\n");
2322 mutex_lock(&bnx2fc_dev_lock
);
2324 if (!try_module_get(THIS_MODULE
)) {
2329 /* obtain physical netdev */
2330 if (is_vlan_dev(netdev
))
2331 phys_dev
= vlan_dev_real_dev(netdev
);
2333 /* verify if the physical device is a netxtreme2 device */
2334 if (phys_dev
->ethtool_ops
&& phys_dev
->ethtool_ops
->get_drvinfo
) {
2335 memset(&drvinfo
, 0, sizeof(drvinfo
));
2336 phys_dev
->ethtool_ops
->get_drvinfo(phys_dev
, &drvinfo
);
2337 if (strncmp(drvinfo
.driver
, "bnx2x", strlen("bnx2x"))) {
2338 printk(KERN_ERR PFX
"Not a netxtreme2 device\n");
2343 printk(KERN_ERR PFX
"unable to obtain drv_info\n");
2348 /* obtain interface and initialize rest of the structure */
2349 hba
= bnx2fc_hba_lookup(phys_dev
);
2352 printk(KERN_ERR PFX
"bnx2fc_create: hba not found\n");
2356 if (bnx2fc_interface_lookup(netdev
)) {
2361 interface
= bnx2fc_interface_create(hba
, netdev
, fip_mode
);
2363 printk(KERN_ERR PFX
"bnx2fc_interface_create failed\n");
2368 if (is_vlan_dev(netdev
)) {
2369 vlan_id
= vlan_dev_vlan_id(netdev
);
2370 interface
->vlan_enabled
= 1;
2373 ctlr
= bnx2fc_to_ctlr(interface
);
2374 cdev
= fcoe_ctlr_to_ctlr_dev(ctlr
);
2375 interface
->vlan_id
= vlan_id
;
2376 interface
->tm_timeout
= BNX2FC_TM_TIMEOUT
;
2378 interface
->timer_work_queue
=
2379 create_singlethread_workqueue("bnx2fc_timer_wq");
2380 if (!interface
->timer_work_queue
) {
2381 printk(KERN_ERR PFX
"ulp_init could not create timer_wq\n");
2386 lport
= bnx2fc_if_create(interface
, &cdev
->dev
, 0);
2388 printk(KERN_ERR PFX
"Failed to create interface (%s)\n",
2394 /* Add interface to if_list */
2395 list_add_tail(&interface
->list
, &if_list
);
2397 lport
->boot_time
= jiffies
;
2399 /* Make this master N_port */
2402 if (link_state
== BNX2FC_CREATE_LINK_UP
)
2403 cdev
->enabled
= FCOE_CTLR_ENABLED
;
2405 cdev
->enabled
= FCOE_CTLR_DISABLED
;
2407 if (link_state
== BNX2FC_CREATE_LINK_UP
&&
2408 !bnx2fc_link_ok(lport
)) {
2409 fcoe_ctlr_link_up(ctlr
);
2410 fc_host_port_type(lport
->host
) = FC_PORTTYPE_NPORT
;
2411 set_bit(ADAPTER_STATE_READY
, &interface
->hba
->adapter_state
);
2414 BNX2FC_HBA_DBG(lport
, "create: START DISC\n");
2415 bnx2fc_start_disc(interface
);
2417 if (link_state
== BNX2FC_CREATE_LINK_UP
)
2418 interface
->enabled
= true;
2421 * Release from kref_init in bnx2fc_interface_setup, on success
2422 * lport should be holding a reference taken in bnx2fc_if_create
2424 bnx2fc_interface_put(interface
);
2425 /* put netdev that was held while calling dev_get_by_name */
2426 mutex_unlock(&bnx2fc_dev_lock
);
2431 destroy_workqueue(interface
->timer_work_queue
);
2433 bnx2fc_net_cleanup(interface
);
2434 bnx2fc_interface_put(interface
);
2437 module_put(THIS_MODULE
);
2439 mutex_unlock(&bnx2fc_dev_lock
);
2445 * bnx2fc_create() - Create a bnx2fc interface
2446 * @netdev : The net_device object the Ethernet interface to create on
2447 * @fip_mode: The FIP mode for this creation
2449 * Called from fcoe transport
2451 * Returns: 0 for success
2453 static int bnx2fc_create(struct net_device
*netdev
, enum fip_mode fip_mode
)
2455 return _bnx2fc_create(netdev
, fip_mode
, BNX2FC_CREATE_LINK_UP
);
2459 * bnx2fc_ctlr_alloc() - Allocate a bnx2fc interface from fcoe_sysfs
2460 * @netdev: The net_device to be used by the allocated FCoE Controller
2462 * This routine is called from fcoe_sysfs. It will start the fcoe_ctlr
2463 * in a link_down state. The allows the user an opportunity to configure
2464 * the FCoE Controller from sysfs before enabling the FCoE Controller.
2466 * Creating in with this routine starts the FCoE Controller in Fabric
2467 * mode. The user can change to VN2VN or another mode before enabling.
2469 static int bnx2fc_ctlr_alloc(struct net_device
*netdev
)
2471 return _bnx2fc_create(netdev
, FIP_MODE_FABRIC
,
2472 BNX2FC_CREATE_LINK_DOWN
);
2476 * bnx2fc_find_hba_for_cnic - maps cnic instance to bnx2fc hba instance
2478 * @cnic: Pointer to cnic device instance
2481 static struct bnx2fc_hba
*bnx2fc_find_hba_for_cnic(struct cnic_dev
*cnic
)
2483 struct bnx2fc_hba
*hba
;
2485 /* Called with bnx2fc_dev_lock held */
2486 list_for_each_entry(hba
, &adapter_list
, list
) {
2487 if (hba
->cnic
== cnic
)
2493 static struct bnx2fc_interface
*bnx2fc_interface_lookup(struct net_device
2496 struct bnx2fc_interface
*interface
;
2498 /* Called with bnx2fc_dev_lock held */
2499 list_for_each_entry(interface
, &if_list
, list
) {
2500 if (interface
->netdev
== netdev
)
2506 static struct bnx2fc_hba
*bnx2fc_hba_lookup(struct net_device
2509 struct bnx2fc_hba
*hba
;
2511 /* Called with bnx2fc_dev_lock held */
2512 list_for_each_entry(hba
, &adapter_list
, list
) {
2513 if (hba
->phys_dev
== phys_dev
)
2516 printk(KERN_ERR PFX
"adapter_lookup: hba NULL\n");
2521 * bnx2fc_ulp_exit - shuts down adapter instance and frees all resources
2523 * @dev cnic device handle
2525 static void bnx2fc_ulp_exit(struct cnic_dev
*dev
)
2527 struct bnx2fc_hba
*hba
;
2528 struct bnx2fc_interface
*interface
, *tmp
;
2530 BNX2FC_MISC_DBG("Entered bnx2fc_ulp_exit\n");
2532 if (!test_bit(CNIC_F_BNX2X_CLASS
, &dev
->flags
)) {
2533 printk(KERN_ERR PFX
"bnx2fc port check: %s, flags: %lx\n",
2534 dev
->netdev
->name
, dev
->flags
);
2538 mutex_lock(&bnx2fc_dev_lock
);
2539 hba
= bnx2fc_find_hba_for_cnic(dev
);
2541 printk(KERN_ERR PFX
"bnx2fc_ulp_exit: hba not found, dev 0%p\n",
2543 mutex_unlock(&bnx2fc_dev_lock
);
2547 list_del_init(&hba
->list
);
2550 list_for_each_entry_safe(interface
, tmp
, &if_list
, list
)
2551 /* destroy not called yet, move to quiesced list */
2552 if (interface
->hba
== hba
)
2553 __bnx2fc_destroy(interface
);
2554 mutex_unlock(&bnx2fc_dev_lock
);
2556 /* Ensure ALL destroy work has been completed before return */
2557 flush_workqueue(bnx2fc_wq
);
2559 bnx2fc_ulp_stop(hba
);
2560 /* unregister cnic device */
2561 if (test_and_clear_bit(BNX2FC_CNIC_REGISTERED
, &hba
->reg_with_cnic
))
2562 hba
->cnic
->unregister_device(hba
->cnic
, CNIC_ULP_FCOE
);
2563 bnx2fc_hba_destroy(hba
);
2566 static void bnx2fc_rport_terminate_io(struct fc_rport
*rport
)
2568 /* This is a no-op */
2572 * bnx2fc_fcoe_reset - Resets the fcoe
2574 * @shost: shost the reset is from
2578 static int bnx2fc_fcoe_reset(struct Scsi_Host
*shost
)
2580 struct fc_lport
*lport
= shost_priv(shost
);
2581 fc_lport_reset(lport
);
2586 static bool bnx2fc_match(struct net_device
*netdev
)
2588 struct net_device
*phys_dev
= netdev
;
2590 mutex_lock(&bnx2fc_dev_lock
);
2591 if (is_vlan_dev(netdev
))
2592 phys_dev
= vlan_dev_real_dev(netdev
);
2594 if (bnx2fc_hba_lookup(phys_dev
)) {
2595 mutex_unlock(&bnx2fc_dev_lock
);
2599 mutex_unlock(&bnx2fc_dev_lock
);
2604 static struct fcoe_transport bnx2fc_transport
= {
2607 .list
= LIST_HEAD_INIT(bnx2fc_transport
.list
),
2608 .alloc
= bnx2fc_ctlr_alloc
,
2609 .match
= bnx2fc_match
,
2610 .create
= bnx2fc_create
,
2611 .destroy
= bnx2fc_destroy
,
2612 .enable
= bnx2fc_enable
,
2613 .disable
= bnx2fc_disable
,
2617 * bnx2fc_cpu_online - Create a receive thread for an online CPU
2619 * @cpu: cpu index for the online cpu
2621 static int bnx2fc_cpu_online(unsigned int cpu
)
2623 struct bnx2fc_percpu_s
*p
;
2624 struct task_struct
*thread
;
2626 p
= &per_cpu(bnx2fc_percpu
, cpu
);
2628 thread
= kthread_create_on_node(bnx2fc_percpu_io_thread
,
2629 (void *)p
, cpu_to_node(cpu
),
2630 "bnx2fc_thread/%d", cpu
);
2632 return PTR_ERR(thread
);
2634 /* bind thread to the cpu */
2635 kthread_bind(thread
, cpu
);
2636 p
->iothread
= thread
;
2637 wake_up_process(thread
);
2641 static int bnx2fc_cpu_offline(unsigned int cpu
)
2643 struct bnx2fc_percpu_s
*p
;
2644 struct task_struct
*thread
;
2645 struct bnx2fc_work
*work
, *tmp
;
2647 BNX2FC_MISC_DBG("destroying io thread for CPU %d\n", cpu
);
2649 /* Prevent any new work from being queued for this CPU */
2650 p
= &per_cpu(bnx2fc_percpu
, cpu
);
2651 spin_lock_bh(&p
->fp_work_lock
);
2652 thread
= p
->iothread
;
2655 /* Free all work in the list */
2656 list_for_each_entry_safe(work
, tmp
, &p
->work_list
, list
) {
2657 list_del_init(&work
->list
);
2658 bnx2fc_process_cq_compl(work
->tgt
, work
->wqe
);
2662 spin_unlock_bh(&p
->fp_work_lock
);
2665 kthread_stop(thread
);
2669 static int bnx2fc_slave_configure(struct scsi_device
*sdev
)
2671 if (!bnx2fc_queue_depth
)
2674 scsi_change_queue_depth(sdev
, bnx2fc_queue_depth
);
2678 static enum cpuhp_state bnx2fc_online_state
;
2681 * bnx2fc_mod_init - module init entry point
2683 * Initialize driver wide global data structures, and register
2686 static int __init
bnx2fc_mod_init(void)
2688 struct fcoe_percpu_s
*bg
;
2689 struct task_struct
*l2_thread
;
2691 unsigned int cpu
= 0;
2692 struct bnx2fc_percpu_s
*p
;
2694 printk(KERN_INFO PFX
"%s", version
);
2696 /* register as a fcoe transport */
2697 rc
= fcoe_transport_attach(&bnx2fc_transport
);
2699 printk(KERN_ERR
"failed to register an fcoe transport, check "
2700 "if libfcoe is loaded\n");
2704 INIT_LIST_HEAD(&adapter_list
);
2705 INIT_LIST_HEAD(&if_list
);
2706 mutex_init(&bnx2fc_dev_lock
);
2709 /* Attach FC transport template */
2710 rc
= bnx2fc_attach_transport();
2714 bnx2fc_wq
= alloc_workqueue("bnx2fc", 0, 0);
2720 bg
= &bnx2fc_global
;
2721 skb_queue_head_init(&bg
->fcoe_rx_list
);
2722 l2_thread
= kthread_create(bnx2fc_l2_rcv_thread
,
2724 "bnx2fc_l2_thread");
2725 if (IS_ERR(l2_thread
)) {
2726 rc
= PTR_ERR(l2_thread
);
2729 wake_up_process(l2_thread
);
2730 spin_lock_bh(&bg
->fcoe_rx_list
.lock
);
2731 bg
->kthread
= l2_thread
;
2732 spin_unlock_bh(&bg
->fcoe_rx_list
.lock
);
2734 for_each_possible_cpu(cpu
) {
2735 p
= &per_cpu(bnx2fc_percpu
, cpu
);
2736 INIT_LIST_HEAD(&p
->work_list
);
2737 spin_lock_init(&p
->fp_work_lock
);
2740 rc
= cpuhp_setup_state(CPUHP_AP_ONLINE_DYN
, "scsi/bnx2fc:online",
2741 bnx2fc_cpu_online
, bnx2fc_cpu_offline
);
2744 bnx2fc_online_state
= rc
;
2746 cnic_register_driver(CNIC_ULP_FCOE
, &bnx2fc_cnic_cb
);
2750 kthread_stop(l2_thread
);
2752 destroy_workqueue(bnx2fc_wq
);
2754 bnx2fc_release_transport();
2756 fcoe_transport_detach(&bnx2fc_transport
);
2761 static void __exit
bnx2fc_mod_exit(void)
2763 LIST_HEAD(to_be_deleted
);
2764 struct bnx2fc_hba
*hba
, *next
;
2765 struct fcoe_percpu_s
*bg
;
2766 struct task_struct
*l2_thread
;
2767 struct sk_buff
*skb
;
2770 * NOTE: Since cnic calls register_driver routine rtnl_lock,
2771 * it will have higher precedence than bnx2fc_dev_lock.
2772 * unregister_device() cannot be called with bnx2fc_dev_lock
2775 mutex_lock(&bnx2fc_dev_lock
);
2776 list_splice_init(&adapter_list
, &to_be_deleted
);
2778 mutex_unlock(&bnx2fc_dev_lock
);
2780 /* Unregister with cnic */
2781 list_for_each_entry_safe(hba
, next
, &to_be_deleted
, list
) {
2782 list_del_init(&hba
->list
);
2783 printk(KERN_ERR PFX
"MOD_EXIT:destroy hba = 0x%p\n",
2785 bnx2fc_ulp_stop(hba
);
2786 /* unregister cnic device */
2787 if (test_and_clear_bit(BNX2FC_CNIC_REGISTERED
,
2788 &hba
->reg_with_cnic
))
2789 hba
->cnic
->unregister_device(hba
->cnic
,
2791 bnx2fc_hba_destroy(hba
);
2793 cnic_unregister_driver(CNIC_ULP_FCOE
);
2795 /* Destroy global thread */
2796 bg
= &bnx2fc_global
;
2797 spin_lock_bh(&bg
->fcoe_rx_list
.lock
);
2798 l2_thread
= bg
->kthread
;
2800 while ((skb
= __skb_dequeue(&bg
->fcoe_rx_list
)) != NULL
)
2803 spin_unlock_bh(&bg
->fcoe_rx_list
.lock
);
2806 kthread_stop(l2_thread
);
2808 cpuhp_remove_state(bnx2fc_online_state
);
2810 destroy_workqueue(bnx2fc_wq
);
2812 * detach from scsi transport
2813 * must happen after all destroys are done
2815 bnx2fc_release_transport();
2817 /* detach from fcoe transport */
2818 fcoe_transport_detach(&bnx2fc_transport
);
2821 module_init(bnx2fc_mod_init
);
2822 module_exit(bnx2fc_mod_exit
);
2824 static struct fcoe_sysfs_function_template bnx2fc_fcoe_sysfs_templ
= {
2825 .set_fcoe_ctlr_enabled
= bnx2fc_ctlr_enabled
,
2826 .get_fcoe_ctlr_link_fail
= fcoe_ctlr_get_lesb
,
2827 .get_fcoe_ctlr_vlink_fail
= fcoe_ctlr_get_lesb
,
2828 .get_fcoe_ctlr_miss_fka
= fcoe_ctlr_get_lesb
,
2829 .get_fcoe_ctlr_symb_err
= fcoe_ctlr_get_lesb
,
2830 .get_fcoe_ctlr_err_block
= fcoe_ctlr_get_lesb
,
2831 .get_fcoe_ctlr_fcs_error
= fcoe_ctlr_get_lesb
,
2833 .get_fcoe_fcf_selected
= fcoe_fcf_get_selected
,
2834 .get_fcoe_fcf_vlan_id
= bnx2fc_fcf_get_vlan_id
,
2837 static struct fc_function_template bnx2fc_transport_function
= {
2838 .show_host_node_name
= 1,
2839 .show_host_port_name
= 1,
2840 .show_host_supported_classes
= 1,
2841 .show_host_supported_fc4s
= 1,
2842 .show_host_active_fc4s
= 1,
2843 .show_host_maxframe_size
= 1,
2845 .show_host_port_id
= 1,
2846 .show_host_supported_speeds
= 1,
2847 .get_host_speed
= fc_get_host_speed
,
2848 .show_host_speed
= 1,
2849 .show_host_port_type
= 1,
2850 .get_host_port_state
= fc_get_host_port_state
,
2851 .show_host_port_state
= 1,
2852 .show_host_symbolic_name
= 1,
2854 .dd_fcrport_size
= (sizeof(struct fc_rport_libfc_priv
) +
2855 sizeof(struct bnx2fc_rport
)),
2856 .show_rport_maxframe_size
= 1,
2857 .show_rport_supported_classes
= 1,
2859 .show_host_fabric_name
= 1,
2860 .show_starget_node_name
= 1,
2861 .show_starget_port_name
= 1,
2862 .show_starget_port_id
= 1,
2863 .set_rport_dev_loss_tmo
= fc_set_rport_loss_tmo
,
2864 .show_rport_dev_loss_tmo
= 1,
2865 .get_fc_host_stats
= bnx2fc_get_host_stats
,
2867 .issue_fc_host_lip
= bnx2fc_fcoe_reset
,
2869 .terminate_rport_io
= bnx2fc_rport_terminate_io
,
2871 .vport_create
= bnx2fc_vport_create
,
2872 .vport_delete
= bnx2fc_vport_destroy
,
2873 .vport_disable
= bnx2fc_vport_disable
,
2874 .bsg_request
= fc_lport_bsg_request
,
2877 static struct fc_function_template bnx2fc_vport_xport_function
= {
2878 .show_host_node_name
= 1,
2879 .show_host_port_name
= 1,
2880 .show_host_supported_classes
= 1,
2881 .show_host_supported_fc4s
= 1,
2882 .show_host_active_fc4s
= 1,
2883 .show_host_maxframe_size
= 1,
2885 .show_host_port_id
= 1,
2886 .show_host_supported_speeds
= 1,
2887 .get_host_speed
= fc_get_host_speed
,
2888 .show_host_speed
= 1,
2889 .show_host_port_type
= 1,
2890 .get_host_port_state
= fc_get_host_port_state
,
2891 .show_host_port_state
= 1,
2892 .show_host_symbolic_name
= 1,
2894 .dd_fcrport_size
= (sizeof(struct fc_rport_libfc_priv
) +
2895 sizeof(struct bnx2fc_rport
)),
2896 .show_rport_maxframe_size
= 1,
2897 .show_rport_supported_classes
= 1,
2899 .show_host_fabric_name
= 1,
2900 .show_starget_node_name
= 1,
2901 .show_starget_port_name
= 1,
2902 .show_starget_port_id
= 1,
2903 .set_rport_dev_loss_tmo
= fc_set_rport_loss_tmo
,
2904 .show_rport_dev_loss_tmo
= 1,
2905 .get_fc_host_stats
= fc_get_host_stats
,
2906 .issue_fc_host_lip
= bnx2fc_fcoe_reset
,
2907 .terminate_rport_io
= fc_rport_terminate_io
,
2908 .bsg_request
= fc_lport_bsg_request
,
2912 * Additional scsi_host attributes.
2915 bnx2fc_tm_timeout_show(struct device
*dev
, struct device_attribute
*attr
,
2918 struct Scsi_Host
*shost
= class_to_shost(dev
);
2919 struct fc_lport
*lport
= shost_priv(shost
);
2920 struct fcoe_port
*port
= lport_priv(lport
);
2921 struct bnx2fc_interface
*interface
= port
->priv
;
2923 sprintf(buf
, "%u\n", interface
->tm_timeout
);
2928 bnx2fc_tm_timeout_store(struct device
*dev
,
2929 struct device_attribute
*attr
, const char *buf
, size_t count
)
2931 struct Scsi_Host
*shost
= class_to_shost(dev
);
2932 struct fc_lport
*lport
= shost_priv(shost
);
2933 struct fcoe_port
*port
= lport_priv(lport
);
2934 struct bnx2fc_interface
*interface
= port
->priv
;
2937 rval
= kstrtouint(buf
, 10, &val
);
2943 interface
->tm_timeout
= (u8
)val
;
2947 static DEVICE_ATTR(tm_timeout
, S_IRUGO
|S_IWUSR
, bnx2fc_tm_timeout_show
,
2948 bnx2fc_tm_timeout_store
);
2950 static struct device_attribute
*bnx2fc_host_attrs
[] = {
2951 &dev_attr_tm_timeout
,
2956 * scsi_host_template structure used while registering with SCSI-ml
2958 static struct scsi_host_template bnx2fc_shost_template
= {
2959 .module
= THIS_MODULE
,
2960 .name
= "QLogic Offload FCoE Initiator",
2961 .queuecommand
= bnx2fc_queuecommand
,
2962 .eh_timed_out
= fc_eh_timed_out
,
2963 .eh_abort_handler
= bnx2fc_eh_abort
, /* abts */
2964 .eh_device_reset_handler
= bnx2fc_eh_device_reset
, /* lun reset */
2965 .eh_target_reset_handler
= bnx2fc_eh_target_reset
, /* tgt reset */
2966 .eh_host_reset_handler
= fc_eh_host_reset
,
2967 .slave_alloc
= fc_slave_alloc
,
2968 .change_queue_depth
= scsi_change_queue_depth
,
2971 .sg_tablesize
= BNX2FC_MAX_BDS_PER_CMD
,
2972 .dma_boundary
= 0x7fff,
2973 .max_sectors
= 0x3fbf,
2974 .track_queue_depth
= 1,
2975 .slave_configure
= bnx2fc_slave_configure
,
2976 .shost_attrs
= bnx2fc_host_attrs
,
2979 static struct libfc_function_template bnx2fc_libfc_fcn_templ
= {
2980 .frame_send
= bnx2fc_xmit
,
2981 .elsct_send
= bnx2fc_elsct_send
,
2982 .fcp_abort_io
= bnx2fc_abort_io
,
2983 .fcp_cleanup
= bnx2fc_cleanup
,
2984 .get_lesb
= fcoe_get_lesb
,
2985 .rport_event_callback
= bnx2fc_rport_event_handler
,
2989 * bnx2fc_cnic_cb - global template of bnx2fc - cnic driver interface
2990 * structure carrying callback function pointers
2992 static struct cnic_ulp_ops bnx2fc_cnic_cb
= {
2993 .owner
= THIS_MODULE
,
2994 .cnic_init
= bnx2fc_ulp_init
,
2995 .cnic_exit
= bnx2fc_ulp_exit
,
2996 .cnic_start
= bnx2fc_ulp_start
,
2997 .cnic_stop
= bnx2fc_ulp_stop
,
2998 .indicate_kcqes
= bnx2fc_indicate_kcqe
,
2999 .indicate_netevent
= bnx2fc_indicate_netevent
,
3000 .cnic_get_stats
= bnx2fc_ulp_get_stats
,