1 /* bnx2fc_fcoe.c: Broadcom NetXtreme II Linux FCoE offload driver.
2 * This file contains the code that interacts with libfc, libfcoe,
3 * cnic modules to create FCoE instances, send/receive non-offloaded
4 * FIP/FCoE packets, listen to link events etc.
6 * Copyright (c) 2008 - 2011 Broadcom Corporation
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation.
12 * Written by: Bhanu Prakash Gollapudi (bprakash@broadcom.com)
17 static struct list_head adapter_list
;
18 static struct list_head if_list
;
19 static u32 adapter_count
;
20 static DEFINE_MUTEX(bnx2fc_dev_lock
);
21 DEFINE_PER_CPU(struct bnx2fc_percpu_s
, bnx2fc_percpu
);
23 #define DRV_MODULE_NAME "bnx2fc"
24 #define DRV_MODULE_VERSION BNX2FC_VERSION
25 #define DRV_MODULE_RELDATE "Dec 21, 2012"
28 static char version
[] =
29 "Broadcom NetXtreme II FCoE Driver " DRV_MODULE_NAME \
30 " v" DRV_MODULE_VERSION
" (" DRV_MODULE_RELDATE
")\n";
33 MODULE_AUTHOR("Bhanu Prakash Gollapudi <bprakash@broadcom.com>");
34 MODULE_DESCRIPTION("Broadcom NetXtreme II BCM57710 FCoE Driver");
35 MODULE_LICENSE("GPL");
36 MODULE_VERSION(DRV_MODULE_VERSION
);
38 #define BNX2FC_MAX_QUEUE_DEPTH 256
39 #define BNX2FC_MIN_QUEUE_DEPTH 32
40 #define FCOE_WORD_TO_BYTE 4
42 static struct scsi_transport_template
*bnx2fc_transport_template
;
43 static struct scsi_transport_template
*bnx2fc_vport_xport_template
;
45 struct workqueue_struct
*bnx2fc_wq
;
47 /* bnx2fc structure needs only one instance of the fcoe_percpu_s structure.
48 * Here the io threads are per cpu but the l2 thread is just one
50 struct fcoe_percpu_s bnx2fc_global
;
51 DEFINE_SPINLOCK(bnx2fc_global_lock
);
53 static struct cnic_ulp_ops bnx2fc_cnic_cb
;
54 static struct libfc_function_template bnx2fc_libfc_fcn_templ
;
55 static struct scsi_host_template bnx2fc_shost_template
;
56 static struct fc_function_template bnx2fc_transport_function
;
57 static struct fcoe_sysfs_function_template bnx2fc_fcoe_sysfs_templ
;
58 static struct fc_function_template bnx2fc_vport_xport_function
;
59 static int bnx2fc_create(struct net_device
*netdev
, enum fip_state fip_mode
);
60 static void __bnx2fc_destroy(struct bnx2fc_interface
*interface
);
61 static int bnx2fc_destroy(struct net_device
*net_device
);
62 static int bnx2fc_enable(struct net_device
*netdev
);
63 static int bnx2fc_disable(struct net_device
*netdev
);
65 /* fcoe_syfs control interface handlers */
66 static int bnx2fc_ctlr_alloc(struct net_device
*netdev
);
67 static int bnx2fc_ctlr_enabled(struct fcoe_ctlr_device
*cdev
);
69 static void bnx2fc_recv_frame(struct sk_buff
*skb
);
71 static void bnx2fc_start_disc(struct bnx2fc_interface
*interface
);
72 static int bnx2fc_shost_config(struct fc_lport
*lport
, struct device
*dev
);
73 static int bnx2fc_lport_config(struct fc_lport
*lport
);
74 static int bnx2fc_em_config(struct fc_lport
*lport
);
75 static int bnx2fc_bind_adapter_devices(struct bnx2fc_hba
*hba
);
76 static void bnx2fc_unbind_adapter_devices(struct bnx2fc_hba
*hba
);
77 static int bnx2fc_bind_pcidev(struct bnx2fc_hba
*hba
);
78 static void bnx2fc_unbind_pcidev(struct bnx2fc_hba
*hba
);
79 static struct fc_lport
*bnx2fc_if_create(struct bnx2fc_interface
*interface
,
80 struct device
*parent
, int npiv
);
81 static void bnx2fc_destroy_work(struct work_struct
*work
);
83 static struct bnx2fc_hba
*bnx2fc_hba_lookup(struct net_device
*phys_dev
);
84 static struct bnx2fc_interface
*bnx2fc_interface_lookup(struct net_device
86 static inline void bnx2fc_interface_put(struct bnx2fc_interface
*interface
);
87 static struct bnx2fc_hba
*bnx2fc_find_hba_for_cnic(struct cnic_dev
*cnic
);
89 static int bnx2fc_fw_init(struct bnx2fc_hba
*hba
);
90 static void bnx2fc_fw_destroy(struct bnx2fc_hba
*hba
);
92 static void bnx2fc_port_shutdown(struct fc_lport
*lport
);
93 static void bnx2fc_stop(struct bnx2fc_interface
*interface
);
94 static int __init
bnx2fc_mod_init(void);
95 static void __exit
bnx2fc_mod_exit(void);
97 unsigned int bnx2fc_debug_level
;
98 module_param_named(debug_logging
, bnx2fc_debug_level
, int, S_IRUGO
|S_IWUSR
);
100 static int bnx2fc_cpu_callback(struct notifier_block
*nfb
,
101 unsigned long action
, void *hcpu
);
102 /* notification function for CPU hotplug events */
103 static struct notifier_block bnx2fc_cpu_notifier
= {
104 .notifier_call
= bnx2fc_cpu_callback
,
107 static inline struct net_device
*bnx2fc_netdev(const struct fc_lport
*lport
)
109 return ((struct bnx2fc_interface
*)
110 ((struct fcoe_port
*)lport_priv(lport
))->priv
)->netdev
;
113 static void bnx2fc_fcf_get_vlan_id(struct fcoe_fcf_device
*fcf_dev
)
115 struct fcoe_ctlr_device
*ctlr_dev
=
116 fcoe_fcf_dev_to_ctlr_dev(fcf_dev
);
117 struct fcoe_ctlr
*ctlr
= fcoe_ctlr_device_priv(ctlr_dev
);
118 struct bnx2fc_interface
*fcoe
= fcoe_ctlr_priv(ctlr
);
120 fcf_dev
->vlan_id
= fcoe
->vlan_id
;
123 static void bnx2fc_clean_rx_queue(struct fc_lport
*lp
)
125 struct fcoe_percpu_s
*bg
;
126 struct fcoe_rcv_info
*fr
;
127 struct sk_buff_head
*list
;
128 struct sk_buff
*skb
, *next
;
129 struct sk_buff
*head
;
132 spin_lock_bh(&bg
->fcoe_rx_list
.lock
);
133 list
= &bg
->fcoe_rx_list
;
135 for (skb
= head
; skb
!= (struct sk_buff
*)list
;
138 fr
= fcoe_dev_from_skb(skb
);
139 if (fr
->fr_dev
== lp
) {
140 __skb_unlink(skb
, list
);
144 spin_unlock_bh(&bg
->fcoe_rx_list
.lock
);
147 int bnx2fc_get_paged_crc_eof(struct sk_buff
*skb
, int tlen
)
150 spin_lock(&bnx2fc_global_lock
);
151 rc
= fcoe_get_paged_crc_eof(skb
, tlen
, &bnx2fc_global
);
152 spin_unlock(&bnx2fc_global_lock
);
157 static void bnx2fc_abort_io(struct fc_lport
*lport
)
160 * This function is no-op for bnx2fc, but we do
161 * not want to leave it as NULL either, as libfc
162 * can call the default function which is
167 static void bnx2fc_cleanup(struct fc_lport
*lport
)
169 struct fcoe_port
*port
= lport_priv(lport
);
170 struct bnx2fc_interface
*interface
= port
->priv
;
171 struct bnx2fc_hba
*hba
= interface
->hba
;
172 struct bnx2fc_rport
*tgt
;
175 BNX2FC_MISC_DBG("Entered %s\n", __func__
);
176 mutex_lock(&hba
->hba_mutex
);
177 spin_lock_bh(&hba
->hba_lock
);
178 for (i
= 0; i
< BNX2FC_NUM_MAX_SESS
; i
++) {
179 tgt
= hba
->tgt_ofld_list
[i
];
181 /* Cleanup IOs belonging to requested vport */
182 if (tgt
->port
== port
) {
183 spin_unlock_bh(&hba
->hba_lock
);
184 BNX2FC_TGT_DBG(tgt
, "flush/cleanup\n");
185 bnx2fc_flush_active_ios(tgt
);
186 spin_lock_bh(&hba
->hba_lock
);
190 spin_unlock_bh(&hba
->hba_lock
);
191 mutex_unlock(&hba
->hba_mutex
);
194 static int bnx2fc_xmit_l2_frame(struct bnx2fc_rport
*tgt
,
197 struct fc_rport_priv
*rdata
= tgt
->rdata
;
198 struct fc_frame_header
*fh
;
201 fh
= fc_frame_header_get(fp
);
202 BNX2FC_TGT_DBG(tgt
, "Xmit L2 frame rport = 0x%x, oxid = 0x%x, "
203 "r_ctl = 0x%x\n", rdata
->ids
.port_id
,
204 ntohs(fh
->fh_ox_id
), fh
->fh_r_ctl
);
205 if ((fh
->fh_type
== FC_TYPE_ELS
) &&
206 (fh
->fh_r_ctl
== FC_RCTL_ELS_REQ
)) {
208 switch (fc_frame_payload_op(fp
)) {
210 rc
= bnx2fc_send_adisc(tgt
, fp
);
213 rc
= bnx2fc_send_logo(tgt
, fp
);
216 rc
= bnx2fc_send_rls(tgt
, fp
);
221 } else if ((fh
->fh_type
== FC_TYPE_BLS
) &&
222 (fh
->fh_r_ctl
== FC_RCTL_BA_ABTS
))
223 BNX2FC_TGT_DBG(tgt
, "ABTS frame\n");
225 BNX2FC_TGT_DBG(tgt
, "Send L2 frame type 0x%x "
226 "rctl 0x%x thru non-offload path\n",
227 fh
->fh_type
, fh
->fh_r_ctl
);
237 * bnx2fc_xmit - bnx2fc's FCoE frame transmit function
239 * @lport: the associated local port
240 * @fp: the fc_frame to be transmitted
242 static int bnx2fc_xmit(struct fc_lport
*lport
, struct fc_frame
*fp
)
245 struct fcoe_crc_eof
*cp
;
247 struct fc_frame_header
*fh
;
248 struct bnx2fc_interface
*interface
;
249 struct fcoe_ctlr
*ctlr
;
250 struct bnx2fc_hba
*hba
;
251 struct fcoe_port
*port
;
253 struct bnx2fc_rport
*tgt
;
254 struct fc_stats
*stats
;
257 unsigned int hlen
, tlen
, elen
;
260 port
= (struct fcoe_port
*)lport_priv(lport
);
261 interface
= port
->priv
;
262 ctlr
= bnx2fc_to_ctlr(interface
);
263 hba
= interface
->hba
;
265 fh
= fc_frame_header_get(fp
);
268 if (!lport
->link_up
) {
269 BNX2FC_HBA_DBG(lport
, "bnx2fc_xmit link down\n");
274 if (unlikely(fh
->fh_r_ctl
== FC_RCTL_ELS_REQ
)) {
275 if (!ctlr
->sel_fcf
) {
276 BNX2FC_HBA_DBG(lport
, "FCF not selected yet!\n");
280 if (fcoe_ctlr_els_send(ctlr
, lport
, skb
))
288 * Snoop the frame header to check if the frame is for
289 * an offloaded session
292 * tgt_ofld_list access is synchronized using
293 * both hba mutex and hba lock. Atleast hba mutex or
294 * hba lock needs to be held for read access.
297 spin_lock_bh(&hba
->hba_lock
);
298 tgt
= bnx2fc_tgt_lookup(port
, ntoh24(fh
->fh_d_id
));
299 if (tgt
&& (test_bit(BNX2FC_FLAG_SESSION_READY
, &tgt
->flags
))) {
300 /* This frame is for offloaded session */
301 BNX2FC_HBA_DBG(lport
, "xmit: Frame is for offloaded session "
302 "port_id = 0x%x\n", ntoh24(fh
->fh_d_id
));
303 spin_unlock_bh(&hba
->hba_lock
);
304 rc
= bnx2fc_xmit_l2_frame(tgt
, fp
);
310 spin_unlock_bh(&hba
->hba_lock
);
313 elen
= sizeof(struct ethhdr
);
314 hlen
= sizeof(struct fcoe_hdr
);
315 tlen
= sizeof(struct fcoe_crc_eof
);
316 wlen
= (skb
->len
- tlen
+ sizeof(crc
)) / FCOE_WORD_TO_BYTE
;
318 skb
->ip_summed
= CHECKSUM_NONE
;
319 crc
= fcoe_fc_crc(fp
);
321 /* copy port crc and eof to the skb buff */
322 if (skb_is_nonlinear(skb
)) {
324 if (bnx2fc_get_paged_crc_eof(skb
, tlen
)) {
328 frag
= &skb_shinfo(skb
)->frags
[skb_shinfo(skb
)->nr_frags
- 1];
329 cp
= kmap_atomic(skb_frag_page(frag
)) + frag
->page_offset
;
331 cp
= (struct fcoe_crc_eof
*)skb_put(skb
, tlen
);
334 memset(cp
, 0, sizeof(*cp
));
336 cp
->fcoe_crc32
= cpu_to_le32(~crc
);
337 if (skb_is_nonlinear(skb
)) {
342 /* adjust skb network/transport offsets to match mac/fcoe/port */
343 skb_push(skb
, elen
+ hlen
);
344 skb_reset_mac_header(skb
);
345 skb_reset_network_header(skb
);
347 skb
->protocol
= htons(ETH_P_FCOE
);
348 skb
->dev
= interface
->netdev
;
350 /* fill up mac and fcoe headers */
352 eh
->h_proto
= htons(ETH_P_FCOE
);
354 fc_fcoe_set_mac(eh
->h_dest
, fh
->fh_d_id
);
356 /* insert GW address */
357 memcpy(eh
->h_dest
, ctlr
->dest_addr
, ETH_ALEN
);
359 if (unlikely(ctlr
->flogi_oxid
!= FC_XID_UNKNOWN
))
360 memcpy(eh
->h_source
, ctlr
->ctl_src_addr
, ETH_ALEN
);
362 memcpy(eh
->h_source
, port
->data_src_addr
, ETH_ALEN
);
364 hp
= (struct fcoe_hdr
*)(eh
+ 1);
365 memset(hp
, 0, sizeof(*hp
));
367 FC_FCOE_ENCAPS_VER(hp
, FC_FCOE_VER
);
370 /* fcoe lso, mss is in max_payload which is non-zero for FCP data */
371 if (lport
->seq_offload
&& fr_max_payload(fp
)) {
372 skb_shinfo(skb
)->gso_type
= SKB_GSO_FCOE
;
373 skb_shinfo(skb
)->gso_size
= fr_max_payload(fp
);
375 skb_shinfo(skb
)->gso_type
= 0;
376 skb_shinfo(skb
)->gso_size
= 0;
380 stats
= per_cpu_ptr(lport
->stats
, get_cpu());
382 stats
->TxWords
+= wlen
;
385 /* send down to lld */
387 if (port
->fcoe_pending_queue
.qlen
)
388 fcoe_check_wait_queue(lport
, skb
);
389 else if (fcoe_start_io(skb
))
390 fcoe_check_wait_queue(lport
, skb
);
396 * bnx2fc_rcv - This is bnx2fc's receive function called by NET_RX_SOFTIRQ
398 * @skb: the receive socket buffer
399 * @dev: associated net device
401 * @olddev: last device
403 * This function receives the packet and builds FC frame and passes it up
405 static int bnx2fc_rcv(struct sk_buff
*skb
, struct net_device
*dev
,
406 struct packet_type
*ptype
, struct net_device
*olddev
)
408 struct fc_lport
*lport
;
409 struct bnx2fc_interface
*interface
;
410 struct fcoe_ctlr
*ctlr
;
411 struct fc_frame_header
*fh
;
412 struct fcoe_rcv_info
*fr
;
413 struct fcoe_percpu_s
*bg
;
416 interface
= container_of(ptype
, struct bnx2fc_interface
,
418 ctlr
= bnx2fc_to_ctlr(interface
);
421 if (unlikely(lport
== NULL
)) {
422 printk(KERN_ERR PFX
"bnx2fc_rcv: lport is NULL\n");
426 if (unlikely(eth_hdr(skb
)->h_proto
!= htons(ETH_P_FCOE
))) {
427 printk(KERN_ERR PFX
"bnx2fc_rcv: Wrong FC type frame\n");
432 * Check for minimum frame length, and make sure required FCoE
433 * and FC headers are pulled into the linear data area.
435 if (unlikely((skb
->len
< FCOE_MIN_FRAME
) ||
436 !pskb_may_pull(skb
, FCOE_HEADER_LEN
)))
439 skb_set_transport_header(skb
, sizeof(struct fcoe_hdr
));
440 fh
= (struct fc_frame_header
*) skb_transport_header(skb
);
442 oxid
= ntohs(fh
->fh_ox_id
);
444 fr
= fcoe_dev_from_skb(skb
);
448 spin_lock(&bg
->fcoe_rx_list
.lock
);
450 __skb_queue_tail(&bg
->fcoe_rx_list
, skb
);
451 if (bg
->fcoe_rx_list
.qlen
== 1)
452 wake_up_process(bg
->thread
);
454 spin_unlock(&bg
->fcoe_rx_list
.lock
);
462 static int bnx2fc_l2_rcv_thread(void *arg
)
464 struct fcoe_percpu_s
*bg
= arg
;
467 set_user_nice(current
, -20);
468 set_current_state(TASK_INTERRUPTIBLE
);
469 while (!kthread_should_stop()) {
471 spin_lock_bh(&bg
->fcoe_rx_list
.lock
);
472 while ((skb
= __skb_dequeue(&bg
->fcoe_rx_list
)) != NULL
) {
473 spin_unlock_bh(&bg
->fcoe_rx_list
.lock
);
474 bnx2fc_recv_frame(skb
);
475 spin_lock_bh(&bg
->fcoe_rx_list
.lock
);
477 __set_current_state(TASK_INTERRUPTIBLE
);
478 spin_unlock_bh(&bg
->fcoe_rx_list
.lock
);
480 __set_current_state(TASK_RUNNING
);
485 static void bnx2fc_recv_frame(struct sk_buff
*skb
)
488 struct fc_lport
*lport
;
489 struct fcoe_rcv_info
*fr
;
490 struct fc_stats
*stats
;
491 struct fc_frame_header
*fh
;
492 struct fcoe_crc_eof crc_eof
;
494 struct fc_lport
*vn_port
;
495 struct fcoe_port
*port
;
500 fr
= fcoe_dev_from_skb(skb
);
502 if (unlikely(lport
== NULL
)) {
503 printk(KERN_ERR PFX
"Invalid lport struct\n");
508 if (skb_is_nonlinear(skb
))
510 mac
= eth_hdr(skb
)->h_source
;
511 dest_mac
= eth_hdr(skb
)->h_dest
;
513 /* Pull the header */
514 hp
= (struct fcoe_hdr
*) skb_network_header(skb
);
515 fh
= (struct fc_frame_header
*) skb_transport_header(skb
);
516 skb_pull(skb
, sizeof(struct fcoe_hdr
));
517 fr_len
= skb
->len
- sizeof(struct fcoe_crc_eof
);
519 stats
= per_cpu_ptr(lport
->stats
, get_cpu());
521 stats
->RxWords
+= fr_len
/ FCOE_WORD_TO_BYTE
;
523 fp
= (struct fc_frame
*)skb
;
526 fr_sof(fp
) = hp
->fcoe_sof
;
527 if (skb_copy_bits(skb
, fr_len
, &crc_eof
, sizeof(crc_eof
))) {
532 fr_eof(fp
) = crc_eof
.fcoe_eof
;
533 fr_crc(fp
) = crc_eof
.fcoe_crc32
;
534 if (pskb_trim(skb
, fr_len
)) {
540 fh
= fc_frame_header_get(fp
);
542 vn_port
= fc_vport_id_lookup(lport
, ntoh24(fh
->fh_d_id
));
544 port
= lport_priv(vn_port
);
545 if (compare_ether_addr(port
->data_src_addr
, dest_mac
)
547 BNX2FC_HBA_DBG(lport
, "fpma mismatch\n");
553 if (fh
->fh_r_ctl
== FC_RCTL_DD_SOL_DATA
&&
554 fh
->fh_type
== FC_TYPE_FCP
) {
555 /* Drop FCP data. We dont this in L2 path */
560 if (fh
->fh_r_ctl
== FC_RCTL_ELS_REQ
&&
561 fh
->fh_type
== FC_TYPE_ELS
) {
562 switch (fc_frame_payload_op(fp
)) {
564 if (ntoh24(fh
->fh_s_id
) == FC_FID_FLOGI
) {
565 /* drop non-FIP LOGO */
574 if (fh
->fh_r_ctl
== FC_RCTL_BA_ABTS
) {
575 /* Drop incoming ABTS */
581 if (le32_to_cpu(fr_crc(fp
)) !=
582 ~crc32(~0, skb
->data
, fr_len
)) {
583 if (stats
->InvalidCRCCount
< 5)
584 printk(KERN_WARNING PFX
"dropping frame with "
586 stats
->InvalidCRCCount
++;
592 fc_exch_recv(lport
, fp
);
596 * bnx2fc_percpu_io_thread - thread per cpu for ios
598 * @arg: ptr to bnx2fc_percpu_info structure
600 int bnx2fc_percpu_io_thread(void *arg
)
602 struct bnx2fc_percpu_s
*p
= arg
;
603 struct bnx2fc_work
*work
, *tmp
;
604 LIST_HEAD(work_list
);
606 set_user_nice(current
, -20);
607 set_current_state(TASK_INTERRUPTIBLE
);
608 while (!kthread_should_stop()) {
610 spin_lock_bh(&p
->fp_work_lock
);
611 while (!list_empty(&p
->work_list
)) {
612 list_splice_init(&p
->work_list
, &work_list
);
613 spin_unlock_bh(&p
->fp_work_lock
);
615 list_for_each_entry_safe(work
, tmp
, &work_list
, list
) {
616 list_del_init(&work
->list
);
617 bnx2fc_process_cq_compl(work
->tgt
, work
->wqe
);
621 spin_lock_bh(&p
->fp_work_lock
);
623 __set_current_state(TASK_INTERRUPTIBLE
);
624 spin_unlock_bh(&p
->fp_work_lock
);
626 __set_current_state(TASK_RUNNING
);
631 static struct fc_host_statistics
*bnx2fc_get_host_stats(struct Scsi_Host
*shost
)
633 struct fc_host_statistics
*bnx2fc_stats
;
634 struct fc_lport
*lport
= shost_priv(shost
);
635 struct fcoe_port
*port
= lport_priv(lport
);
636 struct bnx2fc_interface
*interface
= port
->priv
;
637 struct bnx2fc_hba
*hba
= interface
->hba
;
638 struct fcoe_statistics_params
*fw_stats
;
641 fw_stats
= (struct fcoe_statistics_params
*)hba
->stats_buffer
;
645 bnx2fc_stats
= fc_get_host_stats(shost
);
647 init_completion(&hba
->stat_req_done
);
648 if (bnx2fc_send_stat_req(hba
))
650 rc
= wait_for_completion_timeout(&hba
->stat_req_done
, (2 * HZ
));
652 BNX2FC_HBA_DBG(lport
, "FW stat req timed out\n");
655 BNX2FC_STATS(hba
, rx_stat2
, fc_crc_cnt
);
656 bnx2fc_stats
->invalid_crc_count
+= hba
->bfw_stats
.fc_crc_cnt
;
657 BNX2FC_STATS(hba
, tx_stat
, fcoe_tx_pkt_cnt
);
658 bnx2fc_stats
->tx_frames
+= hba
->bfw_stats
.fcoe_tx_pkt_cnt
;
659 BNX2FC_STATS(hba
, tx_stat
, fcoe_tx_byte_cnt
);
660 bnx2fc_stats
->tx_words
+= ((hba
->bfw_stats
.fcoe_tx_byte_cnt
) / 4);
661 BNX2FC_STATS(hba
, rx_stat0
, fcoe_rx_pkt_cnt
);
662 bnx2fc_stats
->rx_frames
+= hba
->bfw_stats
.fcoe_rx_pkt_cnt
;
663 BNX2FC_STATS(hba
, rx_stat0
, fcoe_rx_byte_cnt
);
664 bnx2fc_stats
->rx_words
+= ((hba
->bfw_stats
.fcoe_rx_byte_cnt
) / 4);
666 bnx2fc_stats
->dumped_frames
= 0;
667 bnx2fc_stats
->lip_count
= 0;
668 bnx2fc_stats
->nos_count
= 0;
669 bnx2fc_stats
->loss_of_sync_count
= 0;
670 bnx2fc_stats
->loss_of_signal_count
= 0;
671 bnx2fc_stats
->prim_seq_protocol_err_count
= 0;
673 memcpy(&hba
->prev_stats
, hba
->stats_buffer
,
674 sizeof(struct fcoe_statistics_params
));
678 static int bnx2fc_shost_config(struct fc_lport
*lport
, struct device
*dev
)
680 struct fcoe_port
*port
= lport_priv(lport
);
681 struct bnx2fc_interface
*interface
= port
->priv
;
682 struct Scsi_Host
*shost
= lport
->host
;
685 shost
->max_cmd_len
= BNX2FC_MAX_CMD_LEN
;
686 shost
->max_lun
= BNX2FC_MAX_LUN
;
687 shost
->max_id
= BNX2FC_MAX_FCP_TGT
;
688 shost
->max_channel
= 0;
690 shost
->transportt
= bnx2fc_vport_xport_template
;
692 shost
->transportt
= bnx2fc_transport_template
;
694 /* Add the new host to SCSI-ml */
695 rc
= scsi_add_host(lport
->host
, dev
);
697 printk(KERN_ERR PFX
"Error on scsi_add_host\n");
701 fc_host_max_npiv_vports(lport
->host
) = USHRT_MAX
;
702 sprintf(fc_host_symbolic_name(lport
->host
), "%s v%s over %s",
703 BNX2FC_NAME
, BNX2FC_VERSION
,
704 interface
->netdev
->name
);
709 static int bnx2fc_link_ok(struct fc_lport
*lport
)
711 struct fcoe_port
*port
= lport_priv(lport
);
712 struct bnx2fc_interface
*interface
= port
->priv
;
713 struct bnx2fc_hba
*hba
= interface
->hba
;
714 struct net_device
*dev
= hba
->phys_dev
;
717 if ((dev
->flags
& IFF_UP
) && netif_carrier_ok(dev
))
718 clear_bit(ADAPTER_STATE_LINK_DOWN
, &hba
->adapter_state
);
720 set_bit(ADAPTER_STATE_LINK_DOWN
, &hba
->adapter_state
);
727 * bnx2fc_get_link_state - get network link state
729 * @hba: adapter instance pointer
731 * updates adapter structure flag based on netdev state
733 void bnx2fc_get_link_state(struct bnx2fc_hba
*hba
)
735 if (test_bit(__LINK_STATE_NOCARRIER
, &hba
->phys_dev
->state
))
736 set_bit(ADAPTER_STATE_LINK_DOWN
, &hba
->adapter_state
);
738 clear_bit(ADAPTER_STATE_LINK_DOWN
, &hba
->adapter_state
);
741 static int bnx2fc_net_config(struct fc_lport
*lport
, struct net_device
*netdev
)
743 struct bnx2fc_hba
*hba
;
744 struct bnx2fc_interface
*interface
;
745 struct fcoe_ctlr
*ctlr
;
746 struct fcoe_port
*port
;
749 port
= lport_priv(lport
);
750 interface
= port
->priv
;
751 ctlr
= bnx2fc_to_ctlr(interface
);
752 hba
= interface
->hba
;
754 /* require support for get_pauseparam ethtool op. */
755 if (!hba
->phys_dev
->ethtool_ops
||
756 !hba
->phys_dev
->ethtool_ops
->get_pauseparam
)
759 if (fc_set_mfs(lport
, BNX2FC_MFS
))
762 skb_queue_head_init(&port
->fcoe_pending_queue
);
763 port
->fcoe_pending_queue_active
= 0;
764 setup_timer(&port
->timer
, fcoe_queue_timer
, (unsigned long) lport
);
766 fcoe_link_speed_update(lport
);
769 if (fcoe_get_wwn(netdev
, &wwnn
, NETDEV_FCOE_WWNN
))
770 wwnn
= fcoe_wwn_from_mac(ctlr
->ctl_src_addr
,
772 BNX2FC_HBA_DBG(lport
, "WWNN = 0x%llx\n", wwnn
);
773 fc_set_wwnn(lport
, wwnn
);
775 if (fcoe_get_wwn(netdev
, &wwpn
, NETDEV_FCOE_WWPN
))
776 wwpn
= fcoe_wwn_from_mac(ctlr
->ctl_src_addr
,
779 BNX2FC_HBA_DBG(lport
, "WWPN = 0x%llx\n", wwpn
);
780 fc_set_wwpn(lport
, wwpn
);
786 static void bnx2fc_destroy_timer(unsigned long data
)
788 struct bnx2fc_hba
*hba
= (struct bnx2fc_hba
*)data
;
790 printk(KERN_ERR PFX
"ERROR:bnx2fc_destroy_timer - "
791 "Destroy compl not received!!\n");
792 set_bit(BNX2FC_FLAG_DESTROY_CMPL
, &hba
->flags
);
793 wake_up_interruptible(&hba
->destroy_wait
);
797 * bnx2fc_indicate_netevent - Generic netdev event handler
799 * @context: adapter structure pointer
801 * @vlan_id: vlan id - associated vlan id with this event
803 * Handles NETDEV_UP, NETDEV_DOWN, NETDEV_GOING_DOWN,NETDEV_CHANGE and
804 * NETDEV_CHANGE_MTU events. Handle NETDEV_UNREGISTER only for vlans.
806 static void bnx2fc_indicate_netevent(void *context
, unsigned long event
,
809 struct bnx2fc_hba
*hba
= (struct bnx2fc_hba
*)context
;
810 struct fcoe_ctlr_device
*cdev
;
811 struct fc_lport
*lport
;
812 struct fc_lport
*vport
;
813 struct bnx2fc_interface
*interface
, *tmp
;
814 struct fcoe_ctlr
*ctlr
;
815 int wait_for_upload
= 0;
816 u32 link_possible
= 1;
818 if (vlan_id
!= 0 && event
!= NETDEV_UNREGISTER
)
823 if (!test_bit(ADAPTER_STATE_UP
, &hba
->adapter_state
))
824 printk(KERN_ERR
"indicate_netevent: "\
825 "hba is not UP!!\n");
829 clear_bit(ADAPTER_STATE_GOING_DOWN
, &hba
->adapter_state
);
830 clear_bit(ADAPTER_STATE_UP
, &hba
->adapter_state
);
834 case NETDEV_GOING_DOWN
:
835 set_bit(ADAPTER_STATE_GOING_DOWN
, &hba
->adapter_state
);
842 case NETDEV_UNREGISTER
:
845 mutex_lock(&bnx2fc_dev_lock
);
846 list_for_each_entry_safe(interface
, tmp
, &if_list
, list
) {
847 if (interface
->hba
== hba
&&
848 interface
->vlan_id
== (vlan_id
& VLAN_VID_MASK
))
849 __bnx2fc_destroy(interface
);
851 mutex_unlock(&bnx2fc_dev_lock
);
855 printk(KERN_ERR PFX
"Unknown netevent %ld", event
);
859 mutex_lock(&bnx2fc_dev_lock
);
860 list_for_each_entry(interface
, &if_list
, list
) {
862 if (interface
->hba
!= hba
)
865 ctlr
= bnx2fc_to_ctlr(interface
);
867 BNX2FC_HBA_DBG(lport
, "netevent handler - event=%s %ld\n",
868 interface
->netdev
->name
, event
);
870 fcoe_link_speed_update(lport
);
872 cdev
= fcoe_ctlr_to_ctlr_dev(ctlr
);
874 if (link_possible
&& !bnx2fc_link_ok(lport
)) {
875 switch (cdev
->enabled
) {
876 case FCOE_CTLR_DISABLED
:
877 pr_info("Link up while interface is disabled.\n");
879 case FCOE_CTLR_ENABLED
:
880 case FCOE_CTLR_UNUSED
:
881 /* Reset max recv frame size to default */
882 fc_set_mfs(lport
, BNX2FC_MFS
);
884 * ctlr link up will only be handled during
885 * enable to avoid sending discovery
886 * solicitation on a stale vlan
888 if (interface
->enabled
)
889 fcoe_ctlr_link_up(ctlr
);
891 } else if (fcoe_ctlr_link_down(ctlr
)) {
892 switch (cdev
->enabled
) {
893 case FCOE_CTLR_DISABLED
:
894 pr_info("Link down while interface is disabled.\n");
896 case FCOE_CTLR_ENABLED
:
897 case FCOE_CTLR_UNUSED
:
898 mutex_lock(&lport
->lp_mutex
);
899 list_for_each_entry(vport
, &lport
->vports
, list
)
900 fc_host_port_type(vport
->host
) =
902 mutex_unlock(&lport
->lp_mutex
);
903 fc_host_port_type(lport
->host
) =
905 per_cpu_ptr(lport
->stats
,
906 get_cpu())->LinkFailureCount
++;
908 fcoe_clean_pending_queue(lport
);
913 mutex_unlock(&bnx2fc_dev_lock
);
915 if (wait_for_upload
) {
916 clear_bit(ADAPTER_STATE_READY
, &hba
->adapter_state
);
917 init_waitqueue_head(&hba
->shutdown_wait
);
918 BNX2FC_MISC_DBG("indicate_netevent "
919 "num_ofld_sess = %d\n",
921 hba
->wait_for_link_down
= 1;
922 wait_event_interruptible(hba
->shutdown_wait
,
923 (hba
->num_ofld_sess
== 0));
924 BNX2FC_MISC_DBG("wakeup - num_ofld_sess = %d\n",
926 hba
->wait_for_link_down
= 0;
928 if (signal_pending(current
))
929 flush_signals(current
);
933 static int bnx2fc_libfc_config(struct fc_lport
*lport
)
936 /* Set the function pointers set by bnx2fc driver */
937 memcpy(&lport
->tt
, &bnx2fc_libfc_fcn_templ
,
938 sizeof(struct libfc_function_template
));
939 fc_elsct_init(lport
);
941 fc_rport_init(lport
);
943 fc_disc_config(lport
, lport
);
947 static int bnx2fc_em_config(struct fc_lport
*lport
)
952 max_xid
= FCOE_XIDS_PER_CPU
;
954 max_xid
= FCOE_MAX_XID
;
955 if (!fc_exch_mgr_alloc(lport
, FC_CLASS_3
, FCOE_MIN_XID
,
957 printk(KERN_ERR PFX
"em_config:fc_exch_mgr_alloc failed\n");
964 static int bnx2fc_lport_config(struct fc_lport
*lport
)
968 lport
->max_retry_count
= BNX2FC_MAX_RETRY_CNT
;
969 lport
->max_rport_retry_count
= BNX2FC_MAX_RPORT_RETRY_CNT
;
970 lport
->e_d_tov
= 2 * 1000;
971 lport
->r_a_tov
= 10 * 1000;
973 lport
->service_params
= (FCP_SPPF_INIT_FCN
| FCP_SPPF_RD_XRDY_DIS
|
974 FCP_SPPF_RETRY
| FCP_SPPF_CONF_COMPL
);
975 lport
->does_npiv
= 1;
977 memset(&lport
->rnid_gen
, 0, sizeof(struct fc_els_rnid_gen
));
978 lport
->rnid_gen
.rnid_atype
= BNX2FC_RNID_HBA
;
980 /* alloc stats structure */
981 if (fc_lport_init_stats(lport
))
984 /* Finish fc_lport configuration */
985 fc_lport_config(lport
);
991 * bnx2fc_fip_recv - handle a received FIP frame.
993 * @skb: the received skb
994 * @dev: associated &net_device
995 * @ptype: the &packet_type structure which was used to register this handler.
996 * @orig_dev: original receive &net_device, in case @ dev is a bond.
998 * Returns: 0 for success
1000 static int bnx2fc_fip_recv(struct sk_buff
*skb
, struct net_device
*dev
,
1001 struct packet_type
*ptype
,
1002 struct net_device
*orig_dev
)
1004 struct bnx2fc_interface
*interface
;
1005 struct fcoe_ctlr
*ctlr
;
1006 interface
= container_of(ptype
, struct bnx2fc_interface
,
1008 ctlr
= bnx2fc_to_ctlr(interface
);
1009 fcoe_ctlr_recv(ctlr
, skb
);
1014 * bnx2fc_update_src_mac - Update Ethernet MAC filters.
1016 * @fip: FCoE controller.
1017 * @old: Unicast MAC address to delete if the MAC is non-zero.
1018 * @new: Unicast MAC address to add.
1020 * Remove any previously-set unicast MAC filter.
1021 * Add secondary FCoE MAC address filter for our OUI.
1023 static void bnx2fc_update_src_mac(struct fc_lport
*lport
, u8
*addr
)
1025 struct fcoe_port
*port
= lport_priv(lport
);
1027 memcpy(port
->data_src_addr
, addr
, ETH_ALEN
);
1031 * bnx2fc_get_src_mac - return the ethernet source address for an lport
1033 * @lport: libfc port
1035 static u8
*bnx2fc_get_src_mac(struct fc_lport
*lport
)
1037 struct fcoe_port
*port
;
1039 port
= (struct fcoe_port
*)lport_priv(lport
);
1040 return port
->data_src_addr
;
1044 * bnx2fc_fip_send - send an Ethernet-encapsulated FIP frame.
1046 * @fip: FCoE controller.
1049 static void bnx2fc_fip_send(struct fcoe_ctlr
*fip
, struct sk_buff
*skb
)
1051 skb
->dev
= bnx2fc_from_ctlr(fip
)->netdev
;
1052 dev_queue_xmit(skb
);
1055 static int bnx2fc_vport_create(struct fc_vport
*vport
, bool disabled
)
1057 struct Scsi_Host
*shost
= vport_to_shost(vport
);
1058 struct fc_lport
*n_port
= shost_priv(shost
);
1059 struct fcoe_port
*port
= lport_priv(n_port
);
1060 struct bnx2fc_interface
*interface
= port
->priv
;
1061 struct net_device
*netdev
= interface
->netdev
;
1062 struct fc_lport
*vn_port
;
1066 rc
= fcoe_validate_vport_create(vport
);
1068 fcoe_wwn_to_str(vport
->port_name
, buf
, sizeof(buf
));
1069 printk(KERN_ERR PFX
"Failed to create vport, "
1070 "WWPN (0x%s) already exists\n",
1075 if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE
, &interface
->hba
->flags
)) {
1076 printk(KERN_ERR PFX
"vn ports cannot be created on"
1077 "this interface\n");
1081 mutex_lock(&bnx2fc_dev_lock
);
1082 vn_port
= bnx2fc_if_create(interface
, &vport
->dev
, 1);
1083 mutex_unlock(&bnx2fc_dev_lock
);
1086 if (IS_ERR(vn_port
)) {
1087 printk(KERN_ERR PFX
"bnx2fc_vport_create (%s) failed\n",
1093 fc_vport_set_state(vport
, FC_VPORT_DISABLED
);
1095 vn_port
->boot_time
= jiffies
;
1096 fc_lport_init(vn_port
);
1097 fc_fabric_login(vn_port
);
1098 fc_vport_setlink(vn_port
);
1103 static void bnx2fc_free_vport(struct bnx2fc_hba
*hba
, struct fc_lport
*lport
)
1105 struct bnx2fc_lport
*blport
, *tmp
;
1107 spin_lock_bh(&hba
->hba_lock
);
1108 list_for_each_entry_safe(blport
, tmp
, &hba
->vports
, list
) {
1109 if (blport
->lport
== lport
) {
1110 list_del(&blport
->list
);
1114 spin_unlock_bh(&hba
->hba_lock
);
1117 static int bnx2fc_vport_destroy(struct fc_vport
*vport
)
1119 struct Scsi_Host
*shost
= vport_to_shost(vport
);
1120 struct fc_lport
*n_port
= shost_priv(shost
);
1121 struct fc_lport
*vn_port
= vport
->dd_data
;
1122 struct fcoe_port
*port
= lport_priv(vn_port
);
1123 struct bnx2fc_interface
*interface
= port
->priv
;
1124 struct fc_lport
*v_port
;
1127 mutex_lock(&n_port
->lp_mutex
);
1128 list_for_each_entry(v_port
, &n_port
->vports
, list
)
1129 if (v_port
->vport
== vport
) {
1135 mutex_unlock(&n_port
->lp_mutex
);
1138 list_del(&vn_port
->list
);
1139 mutex_unlock(&n_port
->lp_mutex
);
1140 bnx2fc_free_vport(interface
->hba
, port
->lport
);
1141 bnx2fc_port_shutdown(port
->lport
);
1142 bnx2fc_interface_put(interface
);
1143 queue_work(bnx2fc_wq
, &port
->destroy_work
);
1147 static int bnx2fc_vport_disable(struct fc_vport
*vport
, bool disable
)
1149 struct fc_lport
*lport
= vport
->dd_data
;
1152 fc_vport_set_state(vport
, FC_VPORT_DISABLED
);
1153 fc_fabric_logoff(lport
);
1155 lport
->boot_time
= jiffies
;
1156 fc_fabric_login(lport
);
1157 fc_vport_setlink(lport
);
1163 static int bnx2fc_interface_setup(struct bnx2fc_interface
*interface
)
1165 struct net_device
*netdev
= interface
->netdev
;
1166 struct net_device
*physdev
= interface
->hba
->phys_dev
;
1167 struct fcoe_ctlr
*ctlr
= bnx2fc_to_ctlr(interface
);
1168 struct netdev_hw_addr
*ha
;
1169 int sel_san_mac
= 0;
1171 /* setup Source MAC Address */
1173 for_each_dev_addr(physdev
, ha
) {
1174 BNX2FC_MISC_DBG("net_config: ha->type = %d, fip_mac = ",
1176 printk(KERN_INFO
"%2x:%2x:%2x:%2x:%2x:%2x\n", ha
->addr
[0],
1177 ha
->addr
[1], ha
->addr
[2], ha
->addr
[3],
1178 ha
->addr
[4], ha
->addr
[5]);
1180 if ((ha
->type
== NETDEV_HW_ADDR_T_SAN
) &&
1181 (is_valid_ether_addr(ha
->addr
))) {
1182 memcpy(ctlr
->ctl_src_addr
, ha
->addr
,
1185 BNX2FC_MISC_DBG("Found SAN MAC\n");
1193 interface
->fip_packet_type
.func
= bnx2fc_fip_recv
;
1194 interface
->fip_packet_type
.type
= htons(ETH_P_FIP
);
1195 interface
->fip_packet_type
.dev
= netdev
;
1196 dev_add_pack(&interface
->fip_packet_type
);
1198 interface
->fcoe_packet_type
.func
= bnx2fc_rcv
;
1199 interface
->fcoe_packet_type
.type
= __constant_htons(ETH_P_FCOE
);
1200 interface
->fcoe_packet_type
.dev
= netdev
;
1201 dev_add_pack(&interface
->fcoe_packet_type
);
1206 static int bnx2fc_attach_transport(void)
1208 bnx2fc_transport_template
=
1209 fc_attach_transport(&bnx2fc_transport_function
);
1211 if (bnx2fc_transport_template
== NULL
) {
1212 printk(KERN_ERR PFX
"Failed to attach FC transport\n");
1216 bnx2fc_vport_xport_template
=
1217 fc_attach_transport(&bnx2fc_vport_xport_function
);
1218 if (bnx2fc_vport_xport_template
== NULL
) {
1220 "Failed to attach FC transport for vport\n");
1221 fc_release_transport(bnx2fc_transport_template
);
1222 bnx2fc_transport_template
= NULL
;
1227 static void bnx2fc_release_transport(void)
1229 fc_release_transport(bnx2fc_transport_template
);
1230 fc_release_transport(bnx2fc_vport_xport_template
);
1231 bnx2fc_transport_template
= NULL
;
1232 bnx2fc_vport_xport_template
= NULL
;
1235 static void bnx2fc_interface_release(struct kref
*kref
)
1237 struct fcoe_ctlr_device
*ctlr_dev
;
1238 struct bnx2fc_interface
*interface
;
1239 struct fcoe_ctlr
*ctlr
;
1240 struct net_device
*netdev
;
1242 interface
= container_of(kref
, struct bnx2fc_interface
, kref
);
1243 BNX2FC_MISC_DBG("Interface is being released\n");
1245 ctlr
= bnx2fc_to_ctlr(interface
);
1246 ctlr_dev
= fcoe_ctlr_to_ctlr_dev(ctlr
);
1247 netdev
= interface
->netdev
;
1249 /* tear-down FIP controller */
1250 if (test_and_clear_bit(BNX2FC_CTLR_INIT_DONE
, &interface
->if_flags
))
1251 fcoe_ctlr_destroy(ctlr
);
1253 fcoe_ctlr_device_delete(ctlr_dev
);
1256 module_put(THIS_MODULE
);
1259 static inline void bnx2fc_interface_get(struct bnx2fc_interface
*interface
)
1261 kref_get(&interface
->kref
);
1264 static inline void bnx2fc_interface_put(struct bnx2fc_interface
*interface
)
1266 kref_put(&interface
->kref
, bnx2fc_interface_release
);
1268 static void bnx2fc_hba_destroy(struct bnx2fc_hba
*hba
)
1270 /* Free the command manager */
1272 bnx2fc_cmd_mgr_free(hba
->cmd_mgr
);
1273 hba
->cmd_mgr
= NULL
;
1275 kfree(hba
->tgt_ofld_list
);
1276 bnx2fc_unbind_pcidev(hba
);
1281 * bnx2fc_hba_create - create a new bnx2fc hba
1283 * @cnic: pointer to cnic device
1285 * Creates a new FCoE hba on the given device.
1288 static struct bnx2fc_hba
*bnx2fc_hba_create(struct cnic_dev
*cnic
)
1290 struct bnx2fc_hba
*hba
;
1291 struct fcoe_capabilities
*fcoe_cap
;
1294 hba
= kzalloc(sizeof(*hba
), GFP_KERNEL
);
1296 printk(KERN_ERR PFX
"Unable to allocate hba structure\n");
1299 spin_lock_init(&hba
->hba_lock
);
1300 mutex_init(&hba
->hba_mutex
);
1303 rc
= bnx2fc_bind_pcidev(hba
);
1305 printk(KERN_ERR PFX
"create_adapter: bind error\n");
1308 hba
->phys_dev
= cnic
->netdev
;
1309 hba
->next_conn_id
= 0;
1311 hba
->tgt_ofld_list
=
1312 kzalloc(sizeof(struct bnx2fc_rport
*) * BNX2FC_NUM_MAX_SESS
,
1314 if (!hba
->tgt_ofld_list
) {
1315 printk(KERN_ERR PFX
"Unable to allocate tgt offload list\n");
1319 hba
->num_ofld_sess
= 0;
1321 hba
->cmd_mgr
= bnx2fc_cmd_mgr_alloc(hba
, BNX2FC_MIN_XID
,
1323 if (!hba
->cmd_mgr
) {
1324 printk(KERN_ERR PFX
"em_config:bnx2fc_cmd_mgr_alloc failed\n");
1327 fcoe_cap
= &hba
->fcoe_cap
;
1329 fcoe_cap
->capability1
= BNX2FC_TM_MAX_SQES
<<
1330 FCOE_IOS_PER_CONNECTION_SHIFT
;
1331 fcoe_cap
->capability1
|= BNX2FC_NUM_MAX_SESS
<<
1332 FCOE_LOGINS_PER_PORT_SHIFT
;
1333 fcoe_cap
->capability2
= BNX2FC_MAX_OUTSTANDING_CMNDS
<<
1334 FCOE_NUMBER_OF_EXCHANGES_SHIFT
;
1335 fcoe_cap
->capability2
|= BNX2FC_MAX_NPIV
<<
1336 FCOE_NPIV_WWN_PER_PORT_SHIFT
;
1337 fcoe_cap
->capability3
= BNX2FC_NUM_MAX_SESS
<<
1338 FCOE_TARGETS_SUPPORTED_SHIFT
;
1339 fcoe_cap
->capability3
|= BNX2FC_MAX_OUTSTANDING_CMNDS
<<
1340 FCOE_OUTSTANDING_COMMANDS_SHIFT
;
1341 fcoe_cap
->capability4
= FCOE_CAPABILITY4_STATEFUL
;
1343 init_waitqueue_head(&hba
->shutdown_wait
);
1344 init_waitqueue_head(&hba
->destroy_wait
);
1345 INIT_LIST_HEAD(&hba
->vports
);
1350 kfree(hba
->tgt_ofld_list
);
1352 bnx2fc_unbind_pcidev(hba
);
1358 struct bnx2fc_interface
*bnx2fc_interface_create(struct bnx2fc_hba
*hba
,
1359 struct net_device
*netdev
,
1360 enum fip_state fip_mode
)
1362 struct fcoe_ctlr_device
*ctlr_dev
;
1363 struct bnx2fc_interface
*interface
;
1364 struct fcoe_ctlr
*ctlr
;
1368 size
= (sizeof(*interface
) + sizeof(struct fcoe_ctlr
));
1369 ctlr_dev
= fcoe_ctlr_device_add(&netdev
->dev
, &bnx2fc_fcoe_sysfs_templ
,
1372 printk(KERN_ERR PFX
"Unable to allocate interface structure\n");
1375 ctlr
= fcoe_ctlr_device_priv(ctlr_dev
);
1376 interface
= fcoe_ctlr_priv(ctlr
);
1378 kref_init(&interface
->kref
);
1379 interface
->hba
= hba
;
1380 interface
->netdev
= netdev
;
1382 /* Initialize FIP */
1383 fcoe_ctlr_init(ctlr
, fip_mode
);
1384 ctlr
->send
= bnx2fc_fip_send
;
1385 ctlr
->update_mac
= bnx2fc_update_src_mac
;
1386 ctlr
->get_src_addr
= bnx2fc_get_src_mac
;
1387 set_bit(BNX2FC_CTLR_INIT_DONE
, &interface
->if_flags
);
1389 rc
= bnx2fc_interface_setup(interface
);
1393 fcoe_ctlr_destroy(ctlr
);
1395 fcoe_ctlr_device_delete(ctlr_dev
);
1400 * bnx2fc_if_create - Create FCoE instance on a given interface
1402 * @interface: FCoE interface to create a local port on
1403 * @parent: Device pointer to be the parent in sysfs for the SCSI host
1404 * @npiv: Indicates if the port is vport or not
1406 * Creates a fc_lport instance and a Scsi_Host instance and configure them.
1408 * Returns: Allocated fc_lport or an error pointer
1410 static struct fc_lport
*bnx2fc_if_create(struct bnx2fc_interface
*interface
,
1411 struct device
*parent
, int npiv
)
1413 struct fcoe_ctlr
*ctlr
= bnx2fc_to_ctlr(interface
);
1414 struct fc_lport
*lport
, *n_port
;
1415 struct fcoe_port
*port
;
1416 struct Scsi_Host
*shost
;
1417 struct fc_vport
*vport
= dev_to_vport(parent
);
1418 struct bnx2fc_lport
*blport
;
1419 struct bnx2fc_hba
*hba
;
1422 blport
= kzalloc(sizeof(struct bnx2fc_lport
), GFP_KERNEL
);
1424 BNX2FC_HBA_DBG(ctlr
->lp
, "Unable to alloc blport\n");
1428 /* Allocate Scsi_Host structure */
1430 lport
= libfc_host_alloc(&bnx2fc_shost_template
, sizeof(*port
));
1432 lport
= libfc_vport_create(vport
, sizeof(*port
));
1435 printk(KERN_ERR PFX
"could not allocate scsi host structure\n");
1438 shost
= lport
->host
;
1439 port
= lport_priv(lport
);
1440 port
->lport
= lport
;
1441 port
->priv
= interface
;
1442 port
->get_netdev
= bnx2fc_netdev
;
1443 INIT_WORK(&port
->destroy_work
, bnx2fc_destroy_work
);
1445 /* Configure fcoe_port */
1446 rc
= bnx2fc_lport_config(lport
);
1451 printk(KERN_ERR PFX
"Setting vport names, 0x%llX 0x%llX\n",
1452 vport
->node_name
, vport
->port_name
);
1453 fc_set_wwnn(lport
, vport
->node_name
);
1454 fc_set_wwpn(lport
, vport
->port_name
);
1456 /* Configure netdev and networking properties of the lport */
1457 rc
= bnx2fc_net_config(lport
, interface
->netdev
);
1459 printk(KERN_ERR PFX
"Error on bnx2fc_net_config\n");
1463 rc
= bnx2fc_shost_config(lport
, parent
);
1465 printk(KERN_ERR PFX
"Couldnt configure shost for %s\n",
1466 interface
->netdev
->name
);
1470 /* Initialize the libfc library */
1471 rc
= bnx2fc_libfc_config(lport
);
1473 printk(KERN_ERR PFX
"Couldnt configure libfc\n");
1476 fc_host_port_type(lport
->host
) = FC_PORTTYPE_UNKNOWN
;
1478 /* Allocate exchange manager */
1480 rc
= bnx2fc_em_config(lport
);
1482 shost
= vport_to_shost(vport
);
1483 n_port
= shost_priv(shost
);
1484 rc
= fc_exch_mgr_list_clone(n_port
, lport
);
1488 printk(KERN_ERR PFX
"Error on bnx2fc_em_config\n");
1492 bnx2fc_interface_get(interface
);
1494 hba
= interface
->hba
;
1495 spin_lock_bh(&hba
->hba_lock
);
1496 blport
->lport
= lport
;
1497 list_add_tail(&blport
->list
, &hba
->vports
);
1498 spin_unlock_bh(&hba
->hba_lock
);
1503 scsi_remove_host(shost
);
1505 scsi_host_put(lport
->host
);
1511 static void bnx2fc_net_cleanup(struct bnx2fc_interface
*interface
)
1513 /* Dont listen for Ethernet packets anymore */
1514 __dev_remove_pack(&interface
->fcoe_packet_type
);
1515 __dev_remove_pack(&interface
->fip_packet_type
);
1519 static void bnx2fc_interface_cleanup(struct bnx2fc_interface
*interface
)
1521 struct fcoe_ctlr
*ctlr
= bnx2fc_to_ctlr(interface
);
1522 struct fc_lport
*lport
= ctlr
->lp
;
1523 struct fcoe_port
*port
= lport_priv(lport
);
1524 struct bnx2fc_hba
*hba
= interface
->hba
;
1526 /* Stop the transmit retry timer */
1527 del_timer_sync(&port
->timer
);
1529 /* Free existing transmit skbs */
1530 fcoe_clean_pending_queue(lport
);
1532 bnx2fc_net_cleanup(interface
);
1534 bnx2fc_free_vport(hba
, lport
);
1537 static void bnx2fc_if_destroy(struct fc_lport
*lport
)
1540 /* Free queued packets for the receive thread */
1541 bnx2fc_clean_rx_queue(lport
);
1543 /* Detach from scsi-ml */
1544 fc_remove_host(lport
->host
);
1545 scsi_remove_host(lport
->host
);
1548 * Note that only the physical lport will have the exchange manager.
1549 * for vports, this function is NOP
1551 fc_exch_mgr_free(lport
);
1553 /* Free memory used by statistical counters */
1554 fc_lport_free_stats(lport
);
1556 /* Release Scsi_Host */
1557 scsi_host_put(lport
->host
);
1560 static void __bnx2fc_destroy(struct bnx2fc_interface
*interface
)
1562 struct fcoe_ctlr
*ctlr
= bnx2fc_to_ctlr(interface
);
1563 struct fc_lport
*lport
= ctlr
->lp
;
1564 struct fcoe_port
*port
= lport_priv(lport
);
1566 bnx2fc_interface_cleanup(interface
);
1567 bnx2fc_stop(interface
);
1568 list_del(&interface
->list
);
1569 bnx2fc_interface_put(interface
);
1570 queue_work(bnx2fc_wq
, &port
->destroy_work
);
1574 * bnx2fc_destroy - Destroy a bnx2fc FCoE interface
1576 * @buffer: The name of the Ethernet interface to be destroyed
1577 * @kp: The associated kernel parameter
1579 * Called from sysfs.
1581 * Returns: 0 for success
1583 static int bnx2fc_destroy(struct net_device
*netdev
)
1585 struct bnx2fc_interface
*interface
= NULL
;
1586 struct workqueue_struct
*timer_work_queue
;
1587 struct fcoe_ctlr
*ctlr
;
1591 mutex_lock(&bnx2fc_dev_lock
);
1593 interface
= bnx2fc_interface_lookup(netdev
);
1594 ctlr
= bnx2fc_to_ctlr(interface
);
1595 if (!interface
|| !ctlr
->lp
) {
1597 printk(KERN_ERR PFX
"bnx2fc_destroy: interface or lport not found\n");
1601 timer_work_queue
= interface
->timer_work_queue
;
1602 __bnx2fc_destroy(interface
);
1603 destroy_workqueue(timer_work_queue
);
1606 mutex_unlock(&bnx2fc_dev_lock
);
1611 static void bnx2fc_destroy_work(struct work_struct
*work
)
1613 struct fcoe_port
*port
;
1614 struct fc_lport
*lport
;
1616 port
= container_of(work
, struct fcoe_port
, destroy_work
);
1617 lport
= port
->lport
;
1619 BNX2FC_HBA_DBG(lport
, "Entered bnx2fc_destroy_work\n");
1621 bnx2fc_if_destroy(lport
);
1624 static void bnx2fc_unbind_adapter_devices(struct bnx2fc_hba
*hba
)
1626 bnx2fc_free_fw_resc(hba
);
1627 bnx2fc_free_task_ctx(hba
);
1631 * bnx2fc_bind_adapter_devices - binds bnx2fc adapter with the associated
1634 * @hba: Adapter instance
1636 static int bnx2fc_bind_adapter_devices(struct bnx2fc_hba
*hba
)
1638 if (bnx2fc_setup_task_ctx(hba
))
1641 if (bnx2fc_setup_fw_resc(hba
))
1646 bnx2fc_unbind_adapter_devices(hba
);
1650 static int bnx2fc_bind_pcidev(struct bnx2fc_hba
*hba
)
1652 struct cnic_dev
*cnic
;
1655 printk(KERN_ERR PFX
"cnic is NULL\n");
1659 hba
->pcidev
= cnic
->pcidev
;
1661 pci_dev_get(hba
->pcidev
);
1666 static void bnx2fc_unbind_pcidev(struct bnx2fc_hba
*hba
)
1669 pci_dev_put(hba
->pcidev
);
1674 * bnx2fc_ulp_get_stats - cnic callback to populate FCoE stats
1676 * @handle: transport handle pointing to adapter struture
1678 static int bnx2fc_ulp_get_stats(void *handle
)
1680 struct bnx2fc_hba
*hba
= handle
;
1681 struct cnic_dev
*cnic
;
1682 struct fcoe_stats_info
*stats_addr
;
1688 stats_addr
= &cnic
->stats_addr
->fcoe_stat
;
1692 strncpy(stats_addr
->version
, BNX2FC_VERSION
,
1693 sizeof(stats_addr
->version
));
1694 stats_addr
->txq_size
= BNX2FC_SQ_WQES_MAX
;
1695 stats_addr
->rxq_size
= BNX2FC_CQ_WQES_MAX
;
1702 * bnx2fc_ulp_start - cnic callback to initialize & start adapter instance
1704 * @handle: transport handle pointing to adapter structure
1706 * This function maps adapter structure to pcidev structure and initiates
1707 * firmware handshake to enable/initialize on-chip FCoE components.
1708 * This bnx2fc - cnic interface api callback is used after following
1709 * conditions are met -
1710 * a) underlying network interface is up (marked by event NETDEV_UP
1712 * b) bnx2fc adatper structure is registered.
1714 static void bnx2fc_ulp_start(void *handle
)
1716 struct bnx2fc_hba
*hba
= handle
;
1717 struct bnx2fc_interface
*interface
;
1718 struct fcoe_ctlr
*ctlr
;
1719 struct fc_lport
*lport
;
1721 mutex_lock(&bnx2fc_dev_lock
);
1723 if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE
, &hba
->flags
))
1724 bnx2fc_fw_init(hba
);
1726 BNX2FC_MISC_DBG("bnx2fc started.\n");
1728 list_for_each_entry(interface
, &if_list
, list
) {
1729 if (interface
->hba
== hba
) {
1730 ctlr
= bnx2fc_to_ctlr(interface
);
1732 /* Kick off Fabric discovery*/
1733 printk(KERN_ERR PFX
"ulp_init: start discovery\n");
1734 lport
->tt
.frame_send
= bnx2fc_xmit
;
1735 bnx2fc_start_disc(interface
);
1739 mutex_unlock(&bnx2fc_dev_lock
);
1742 static void bnx2fc_port_shutdown(struct fc_lport
*lport
)
1744 BNX2FC_MISC_DBG("Entered %s\n", __func__
);
1745 fc_fabric_logoff(lport
);
1746 fc_lport_destroy(lport
);
1749 static void bnx2fc_stop(struct bnx2fc_interface
*interface
)
1751 struct fcoe_ctlr
*ctlr
= bnx2fc_to_ctlr(interface
);
1752 struct fc_lport
*lport
;
1753 struct fc_lport
*vport
;
1755 if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE
, &interface
->hba
->flags
))
1759 bnx2fc_port_shutdown(lport
);
1761 mutex_lock(&lport
->lp_mutex
);
1762 list_for_each_entry(vport
, &lport
->vports
, list
)
1763 fc_host_port_type(vport
->host
) =
1764 FC_PORTTYPE_UNKNOWN
;
1765 mutex_unlock(&lport
->lp_mutex
);
1766 fc_host_port_type(lport
->host
) = FC_PORTTYPE_UNKNOWN
;
1767 fcoe_ctlr_link_down(ctlr
);
1768 fcoe_clean_pending_queue(lport
);
1771 static int bnx2fc_fw_init(struct bnx2fc_hba
*hba
)
1773 #define BNX2FC_INIT_POLL_TIME (1000 / HZ)
1777 rc
= bnx2fc_bind_adapter_devices(hba
);
1779 printk(KERN_ALERT PFX
1780 "bnx2fc_bind_adapter_devices failed - rc = %d\n", rc
);
1784 rc
= bnx2fc_send_fw_fcoe_init_msg(hba
);
1786 printk(KERN_ALERT PFX
1787 "bnx2fc_send_fw_fcoe_init_msg failed - rc = %d\n", rc
);
1792 * Wait until the adapter init message is complete, and adapter
1795 while (!test_bit(ADAPTER_STATE_UP
, &hba
->adapter_state
) && i
--)
1796 msleep(BNX2FC_INIT_POLL_TIME
);
1798 if (!test_bit(ADAPTER_STATE_UP
, &hba
->adapter_state
)) {
1799 printk(KERN_ERR PFX
"bnx2fc_start: %s failed to initialize. "
1801 hba
->cnic
->netdev
->name
);
1807 set_bit(BNX2FC_FLAG_FW_INIT_DONE
, &hba
->flags
);
1811 bnx2fc_unbind_adapter_devices(hba
);
1816 static void bnx2fc_fw_destroy(struct bnx2fc_hba
*hba
)
1818 if (test_and_clear_bit(BNX2FC_FLAG_FW_INIT_DONE
, &hba
->flags
)) {
1819 if (bnx2fc_send_fw_fcoe_destroy_msg(hba
) == 0) {
1820 init_timer(&hba
->destroy_timer
);
1821 hba
->destroy_timer
.expires
= BNX2FC_FW_TIMEOUT
+
1823 hba
->destroy_timer
.function
= bnx2fc_destroy_timer
;
1824 hba
->destroy_timer
.data
= (unsigned long)hba
;
1825 add_timer(&hba
->destroy_timer
);
1826 wait_event_interruptible(hba
->destroy_wait
,
1827 test_bit(BNX2FC_FLAG_DESTROY_CMPL
,
1829 clear_bit(BNX2FC_FLAG_DESTROY_CMPL
, &hba
->flags
);
1830 /* This should never happen */
1831 if (signal_pending(current
))
1832 flush_signals(current
);
1834 del_timer_sync(&hba
->destroy_timer
);
1836 bnx2fc_unbind_adapter_devices(hba
);
1841 * bnx2fc_ulp_stop - cnic callback to shutdown adapter instance
1843 * @handle: transport handle pointing to adapter structure
1845 * Driver checks if adapter is already in shutdown mode, if not start
1846 * the shutdown process.
1848 static void bnx2fc_ulp_stop(void *handle
)
1850 struct bnx2fc_hba
*hba
= handle
;
1851 struct bnx2fc_interface
*interface
;
1853 printk(KERN_ERR
"ULP_STOP\n");
1855 mutex_lock(&bnx2fc_dev_lock
);
1856 if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE
, &hba
->flags
))
1858 list_for_each_entry(interface
, &if_list
, list
) {
1859 if (interface
->hba
== hba
)
1860 bnx2fc_stop(interface
);
1862 BUG_ON(hba
->num_ofld_sess
!= 0);
1864 mutex_lock(&hba
->hba_mutex
);
1865 clear_bit(ADAPTER_STATE_UP
, &hba
->adapter_state
);
1866 clear_bit(ADAPTER_STATE_GOING_DOWN
,
1867 &hba
->adapter_state
);
1869 clear_bit(ADAPTER_STATE_READY
, &hba
->adapter_state
);
1870 mutex_unlock(&hba
->hba_mutex
);
1872 bnx2fc_fw_destroy(hba
);
1874 mutex_unlock(&bnx2fc_dev_lock
);
1877 static void bnx2fc_start_disc(struct bnx2fc_interface
*interface
)
1879 struct fcoe_ctlr
*ctlr
= bnx2fc_to_ctlr(interface
);
1880 struct fc_lport
*lport
;
1883 BNX2FC_MISC_DBG("Entered %s\n", __func__
);
1884 /* Kick off FIP/FLOGI */
1885 if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE
, &interface
->hba
->flags
)) {
1886 printk(KERN_ERR PFX
"Init not done yet\n");
1891 BNX2FC_HBA_DBG(lport
, "calling fc_fabric_login\n");
1893 if (!bnx2fc_link_ok(lport
) && interface
->enabled
) {
1894 BNX2FC_HBA_DBG(lport
, "ctlr_link_up\n");
1895 fcoe_ctlr_link_up(ctlr
);
1896 fc_host_port_type(lport
->host
) = FC_PORTTYPE_NPORT
;
1897 set_bit(ADAPTER_STATE_READY
, &interface
->hba
->adapter_state
);
1900 /* wait for the FCF to be selected before issuing FLOGI */
1901 while (!ctlr
->sel_fcf
) {
1903 /* give up after 3 secs */
1904 if (++wait_cnt
> 12)
1908 /* Reset max receive frame size to default */
1909 if (fc_set_mfs(lport
, BNX2FC_MFS
))
1912 fc_lport_init(lport
);
1913 fc_fabric_login(lport
);
1918 * bnx2fc_ulp_init - Initialize an adapter instance
1920 * @dev : cnic device handle
1921 * Called from cnic_register_driver() context to initialize all
1922 * enumerated cnic devices. This routine allocates adapter structure
1923 * and other device specific resources.
1925 static void bnx2fc_ulp_init(struct cnic_dev
*dev
)
1927 struct bnx2fc_hba
*hba
;
1930 BNX2FC_MISC_DBG("Entered %s\n", __func__
);
1931 /* bnx2fc works only when bnx2x is loaded */
1932 if (!test_bit(CNIC_F_BNX2X_CLASS
, &dev
->flags
) ||
1933 (dev
->max_fcoe_conn
== 0)) {
1934 printk(KERN_ERR PFX
"bnx2fc FCoE not supported on %s,"
1935 " flags: %lx fcoe_conn: %d\n",
1936 dev
->netdev
->name
, dev
->flags
, dev
->max_fcoe_conn
);
1940 hba
= bnx2fc_hba_create(dev
);
1942 printk(KERN_ERR PFX
"hba initialization failed\n");
1946 /* Add HBA to the adapter list */
1947 mutex_lock(&bnx2fc_dev_lock
);
1948 list_add_tail(&hba
->list
, &adapter_list
);
1950 mutex_unlock(&bnx2fc_dev_lock
);
1952 dev
->fcoe_cap
= &hba
->fcoe_cap
;
1953 clear_bit(BNX2FC_CNIC_REGISTERED
, &hba
->reg_with_cnic
);
1954 rc
= dev
->register_device(dev
, CNIC_ULP_FCOE
,
1957 printk(KERN_ERR PFX
"register_device failed, rc = %d\n", rc
);
1959 set_bit(BNX2FC_CNIC_REGISTERED
, &hba
->reg_with_cnic
);
1963 * Deperecated: Use bnx2fc_enabled()
1965 static int bnx2fc_disable(struct net_device
*netdev
)
1967 struct bnx2fc_interface
*interface
;
1968 struct fcoe_ctlr
*ctlr
;
1972 mutex_lock(&bnx2fc_dev_lock
);
1974 interface
= bnx2fc_interface_lookup(netdev
);
1975 ctlr
= bnx2fc_to_ctlr(interface
);
1976 if (!interface
|| !ctlr
->lp
) {
1978 printk(KERN_ERR PFX
"bnx2fc_disable: interface or lport not found\n");
1980 interface
->enabled
= false;
1981 fcoe_ctlr_link_down(ctlr
);
1982 fcoe_clean_pending_queue(ctlr
->lp
);
1985 mutex_unlock(&bnx2fc_dev_lock
);
1991 * Deprecated: Use bnx2fc_enabled()
1993 static int bnx2fc_enable(struct net_device
*netdev
)
1995 struct bnx2fc_interface
*interface
;
1996 struct fcoe_ctlr
*ctlr
;
2000 mutex_lock(&bnx2fc_dev_lock
);
2002 interface
= bnx2fc_interface_lookup(netdev
);
2003 ctlr
= bnx2fc_to_ctlr(interface
);
2004 if (!interface
|| !ctlr
->lp
) {
2006 printk(KERN_ERR PFX
"bnx2fc_enable: interface or lport not found\n");
2007 } else if (!bnx2fc_link_ok(ctlr
->lp
)) {
2008 fcoe_ctlr_link_up(ctlr
);
2009 interface
->enabled
= true;
2012 mutex_unlock(&bnx2fc_dev_lock
);
2018 * bnx2fc_ctlr_enabled() - Enable or disable an FCoE Controller
2019 * @cdev: The FCoE Controller that is being enabled or disabled
2021 * fcoe_sysfs will ensure that the state of 'enabled' has
2022 * changed, so no checking is necessary here. This routine simply
2023 * calls fcoe_enable or fcoe_disable, both of which are deprecated.
2024 * When those routines are removed the functionality can be merged
2027 static int bnx2fc_ctlr_enabled(struct fcoe_ctlr_device
*cdev
)
2029 struct fcoe_ctlr
*ctlr
= fcoe_ctlr_device_priv(cdev
);
2030 struct fc_lport
*lport
= ctlr
->lp
;
2031 struct net_device
*netdev
= bnx2fc_netdev(lport
);
2033 switch (cdev
->enabled
) {
2034 case FCOE_CTLR_ENABLED
:
2035 return bnx2fc_enable(netdev
);
2036 case FCOE_CTLR_DISABLED
:
2037 return bnx2fc_disable(netdev
);
2038 case FCOE_CTLR_UNUSED
:
2044 enum bnx2fc_create_link_state
{
2045 BNX2FC_CREATE_LINK_DOWN
,
2046 BNX2FC_CREATE_LINK_UP
,
2050 * _bnx2fc_create() - Create bnx2fc FCoE interface
2051 * @netdev : The net_device object the Ethernet interface to create on
2052 * @fip_mode: The FIP mode for this creation
2053 * @link_state: The ctlr link state on creation
2055 * Called from either the libfcoe 'create' module parameter
2056 * via fcoe_create or from fcoe_syfs's ctlr_create file.
2058 * libfcoe's 'create' module parameter is deprecated so some
2059 * consolidation of code can be done when that interface is
2062 * Returns: 0 for success
2064 static int _bnx2fc_create(struct net_device
*netdev
,
2065 enum fip_state fip_mode
,
2066 enum bnx2fc_create_link_state link_state
)
2068 struct fcoe_ctlr_device
*cdev
;
2069 struct fcoe_ctlr
*ctlr
;
2070 struct bnx2fc_interface
*interface
;
2071 struct bnx2fc_hba
*hba
;
2072 struct net_device
*phys_dev
= netdev
;
2073 struct fc_lport
*lport
;
2074 struct ethtool_drvinfo drvinfo
;
2078 BNX2FC_MISC_DBG("Entered bnx2fc_create\n");
2079 if (fip_mode
!= FIP_MODE_FABRIC
) {
2080 printk(KERN_ERR
"fip mode not FABRIC\n");
2086 mutex_lock(&bnx2fc_dev_lock
);
2088 if (!try_module_get(THIS_MODULE
)) {
2093 /* obtain physical netdev */
2094 if (netdev
->priv_flags
& IFF_802_1Q_VLAN
)
2095 phys_dev
= vlan_dev_real_dev(netdev
);
2097 /* verify if the physical device is a netxtreme2 device */
2098 if (phys_dev
->ethtool_ops
&& phys_dev
->ethtool_ops
->get_drvinfo
) {
2099 memset(&drvinfo
, 0, sizeof(drvinfo
));
2100 phys_dev
->ethtool_ops
->get_drvinfo(phys_dev
, &drvinfo
);
2101 if (strncmp(drvinfo
.driver
, "bnx2x", strlen("bnx2x"))) {
2102 printk(KERN_ERR PFX
"Not a netxtreme2 device\n");
2107 printk(KERN_ERR PFX
"unable to obtain drv_info\n");
2112 /* obtain interface and initialize rest of the structure */
2113 hba
= bnx2fc_hba_lookup(phys_dev
);
2116 printk(KERN_ERR PFX
"bnx2fc_create: hba not found\n");
2120 if (bnx2fc_interface_lookup(netdev
)) {
2125 interface
= bnx2fc_interface_create(hba
, netdev
, fip_mode
);
2127 printk(KERN_ERR PFX
"bnx2fc_interface_create failed\n");
2131 if (netdev
->priv_flags
& IFF_802_1Q_VLAN
) {
2132 vlan_id
= vlan_dev_vlan_id(netdev
);
2133 interface
->vlan_enabled
= 1;
2136 ctlr
= bnx2fc_to_ctlr(interface
);
2137 cdev
= fcoe_ctlr_to_ctlr_dev(ctlr
);
2138 interface
->vlan_id
= vlan_id
;
2140 interface
->timer_work_queue
=
2141 create_singlethread_workqueue("bnx2fc_timer_wq");
2142 if (!interface
->timer_work_queue
) {
2143 printk(KERN_ERR PFX
"ulp_init could not create timer_wq\n");
2148 lport
= bnx2fc_if_create(interface
, &cdev
->dev
, 0);
2150 printk(KERN_ERR PFX
"Failed to create interface (%s)\n",
2156 /* Add interface to if_list */
2157 list_add_tail(&interface
->list
, &if_list
);
2159 lport
->boot_time
= jiffies
;
2161 /* Make this master N_port */
2164 if (link_state
== BNX2FC_CREATE_LINK_UP
)
2165 cdev
->enabled
= FCOE_CTLR_ENABLED
;
2167 cdev
->enabled
= FCOE_CTLR_DISABLED
;
2169 if (link_state
== BNX2FC_CREATE_LINK_UP
&&
2170 !bnx2fc_link_ok(lport
)) {
2171 fcoe_ctlr_link_up(ctlr
);
2172 fc_host_port_type(lport
->host
) = FC_PORTTYPE_NPORT
;
2173 set_bit(ADAPTER_STATE_READY
, &interface
->hba
->adapter_state
);
2176 BNX2FC_HBA_DBG(lport
, "create: START DISC\n");
2177 bnx2fc_start_disc(interface
);
2179 if (link_state
== BNX2FC_CREATE_LINK_UP
)
2180 interface
->enabled
= true;
2183 * Release from kref_init in bnx2fc_interface_setup, on success
2184 * lport should be holding a reference taken in bnx2fc_if_create
2186 bnx2fc_interface_put(interface
);
2187 /* put netdev that was held while calling dev_get_by_name */
2188 mutex_unlock(&bnx2fc_dev_lock
);
2193 destroy_workqueue(interface
->timer_work_queue
);
2195 bnx2fc_net_cleanup(interface
);
2196 bnx2fc_interface_put(interface
);
2199 module_put(THIS_MODULE
);
2201 mutex_unlock(&bnx2fc_dev_lock
);
2207 * bnx2fc_create() - Create a bnx2fc interface
2208 * @netdev : The net_device object the Ethernet interface to create on
2209 * @fip_mode: The FIP mode for this creation
2211 * Called from fcoe transport
2213 * Returns: 0 for success
2215 static int bnx2fc_create(struct net_device
*netdev
, enum fip_state fip_mode
)
2217 return _bnx2fc_create(netdev
, fip_mode
, BNX2FC_CREATE_LINK_UP
);
2221 * bnx2fc_ctlr_alloc() - Allocate a bnx2fc interface from fcoe_sysfs
2222 * @netdev: The net_device to be used by the allocated FCoE Controller
2224 * This routine is called from fcoe_sysfs. It will start the fcoe_ctlr
2225 * in a link_down state. The allows the user an opportunity to configure
2226 * the FCoE Controller from sysfs before enabling the FCoE Controller.
2228 * Creating in with this routine starts the FCoE Controller in Fabric
2229 * mode. The user can change to VN2VN or another mode before enabling.
2231 static int bnx2fc_ctlr_alloc(struct net_device
*netdev
)
2233 return _bnx2fc_create(netdev
, FIP_MODE_FABRIC
,
2234 BNX2FC_CREATE_LINK_DOWN
);
2238 * bnx2fc_find_hba_for_cnic - maps cnic instance to bnx2fc hba instance
2240 * @cnic: Pointer to cnic device instance
2243 static struct bnx2fc_hba
*bnx2fc_find_hba_for_cnic(struct cnic_dev
*cnic
)
2245 struct bnx2fc_hba
*hba
;
2247 /* Called with bnx2fc_dev_lock held */
2248 list_for_each_entry(hba
, &adapter_list
, list
) {
2249 if (hba
->cnic
== cnic
)
2255 static struct bnx2fc_interface
*bnx2fc_interface_lookup(struct net_device
2258 struct bnx2fc_interface
*interface
;
2260 /* Called with bnx2fc_dev_lock held */
2261 list_for_each_entry(interface
, &if_list
, list
) {
2262 if (interface
->netdev
== netdev
)
2268 static struct bnx2fc_hba
*bnx2fc_hba_lookup(struct net_device
2271 struct bnx2fc_hba
*hba
;
2273 /* Called with bnx2fc_dev_lock held */
2274 list_for_each_entry(hba
, &adapter_list
, list
) {
2275 if (hba
->phys_dev
== phys_dev
)
2278 printk(KERN_ERR PFX
"adapter_lookup: hba NULL\n");
2283 * bnx2fc_ulp_exit - shuts down adapter instance and frees all resources
2285 * @dev cnic device handle
2287 static void bnx2fc_ulp_exit(struct cnic_dev
*dev
)
2289 struct bnx2fc_hba
*hba
;
2290 struct bnx2fc_interface
*interface
, *tmp
;
2292 BNX2FC_MISC_DBG("Entered bnx2fc_ulp_exit\n");
2294 if (!test_bit(CNIC_F_BNX2X_CLASS
, &dev
->flags
)) {
2295 printk(KERN_ERR PFX
"bnx2fc port check: %s, flags: %lx\n",
2296 dev
->netdev
->name
, dev
->flags
);
2300 mutex_lock(&bnx2fc_dev_lock
);
2301 hba
= bnx2fc_find_hba_for_cnic(dev
);
2303 printk(KERN_ERR PFX
"bnx2fc_ulp_exit: hba not found, dev 0%p\n",
2305 mutex_unlock(&bnx2fc_dev_lock
);
2309 list_del_init(&hba
->list
);
2312 list_for_each_entry_safe(interface
, tmp
, &if_list
, list
)
2313 /* destroy not called yet, move to quiesced list */
2314 if (interface
->hba
== hba
)
2315 __bnx2fc_destroy(interface
);
2316 mutex_unlock(&bnx2fc_dev_lock
);
2318 bnx2fc_ulp_stop(hba
);
2319 /* unregister cnic device */
2320 if (test_and_clear_bit(BNX2FC_CNIC_REGISTERED
, &hba
->reg_with_cnic
))
2321 hba
->cnic
->unregister_device(hba
->cnic
, CNIC_ULP_FCOE
);
2322 bnx2fc_hba_destroy(hba
);
2326 * bnx2fc_fcoe_reset - Resets the fcoe
2328 * @shost: shost the reset is from
2332 static int bnx2fc_fcoe_reset(struct Scsi_Host
*shost
)
2334 struct fc_lport
*lport
= shost_priv(shost
);
2335 fc_lport_reset(lport
);
2340 static bool bnx2fc_match(struct net_device
*netdev
)
2342 struct net_device
*phys_dev
= netdev
;
2344 mutex_lock(&bnx2fc_dev_lock
);
2345 if (netdev
->priv_flags
& IFF_802_1Q_VLAN
)
2346 phys_dev
= vlan_dev_real_dev(netdev
);
2348 if (bnx2fc_hba_lookup(phys_dev
)) {
2349 mutex_unlock(&bnx2fc_dev_lock
);
2353 mutex_unlock(&bnx2fc_dev_lock
);
2358 static struct fcoe_transport bnx2fc_transport
= {
2361 .list
= LIST_HEAD_INIT(bnx2fc_transport
.list
),
2362 .alloc
= bnx2fc_ctlr_alloc
,
2363 .match
= bnx2fc_match
,
2364 .create
= bnx2fc_create
,
2365 .destroy
= bnx2fc_destroy
,
2366 .enable
= bnx2fc_enable
,
2367 .disable
= bnx2fc_disable
,
2371 * bnx2fc_percpu_thread_create - Create a receive thread for an
2374 * @cpu: cpu index for the online cpu
2376 static void bnx2fc_percpu_thread_create(unsigned int cpu
)
2378 struct bnx2fc_percpu_s
*p
;
2379 struct task_struct
*thread
;
2381 p
= &per_cpu(bnx2fc_percpu
, cpu
);
2383 thread
= kthread_create_on_node(bnx2fc_percpu_io_thread
,
2384 (void *)p
, cpu_to_node(cpu
),
2385 "bnx2fc_thread/%d", cpu
);
2386 /* bind thread to the cpu */
2387 if (likely(!IS_ERR(thread
))) {
2388 kthread_bind(thread
, cpu
);
2389 p
->iothread
= thread
;
2390 wake_up_process(thread
);
2394 static void bnx2fc_percpu_thread_destroy(unsigned int cpu
)
2396 struct bnx2fc_percpu_s
*p
;
2397 struct task_struct
*thread
;
2398 struct bnx2fc_work
*work
, *tmp
;
2400 BNX2FC_MISC_DBG("destroying io thread for CPU %d\n", cpu
);
2402 /* Prevent any new work from being queued for this CPU */
2403 p
= &per_cpu(bnx2fc_percpu
, cpu
);
2404 spin_lock_bh(&p
->fp_work_lock
);
2405 thread
= p
->iothread
;
2409 /* Free all work in the list */
2410 list_for_each_entry_safe(work
, tmp
, &p
->work_list
, list
) {
2411 list_del_init(&work
->list
);
2412 bnx2fc_process_cq_compl(work
->tgt
, work
->wqe
);
2416 spin_unlock_bh(&p
->fp_work_lock
);
2419 kthread_stop(thread
);
2423 * bnx2fc_cpu_callback - Handler for CPU hotplug events
2425 * @nfb: The callback data block
2426 * @action: The event triggering the callback
2427 * @hcpu: The index of the CPU that the event is for
2429 * This creates or destroys per-CPU data for fcoe
2431 * Returns NOTIFY_OK always.
2433 static int bnx2fc_cpu_callback(struct notifier_block
*nfb
,
2434 unsigned long action
, void *hcpu
)
2436 unsigned cpu
= (unsigned long)hcpu
;
2440 case CPU_ONLINE_FROZEN
:
2441 printk(PFX
"CPU %x online: Create Rx thread\n", cpu
);
2442 bnx2fc_percpu_thread_create(cpu
);
2445 case CPU_DEAD_FROZEN
:
2446 printk(PFX
"CPU %x offline: Remove Rx thread\n", cpu
);
2447 bnx2fc_percpu_thread_destroy(cpu
);
2456 * bnx2fc_mod_init - module init entry point
2458 * Initialize driver wide global data structures, and register
2461 static int __init
bnx2fc_mod_init(void)
2463 struct fcoe_percpu_s
*bg
;
2464 struct task_struct
*l2_thread
;
2466 unsigned int cpu
= 0;
2467 struct bnx2fc_percpu_s
*p
;
2469 printk(KERN_INFO PFX
"%s", version
);
2471 /* register as a fcoe transport */
2472 rc
= fcoe_transport_attach(&bnx2fc_transport
);
2474 printk(KERN_ERR
"failed to register an fcoe transport, check "
2475 "if libfcoe is loaded\n");
2479 INIT_LIST_HEAD(&adapter_list
);
2480 INIT_LIST_HEAD(&if_list
);
2481 mutex_init(&bnx2fc_dev_lock
);
2484 /* Attach FC transport template */
2485 rc
= bnx2fc_attach_transport();
2489 bnx2fc_wq
= alloc_workqueue("bnx2fc", 0, 0);
2495 bg
= &bnx2fc_global
;
2496 skb_queue_head_init(&bg
->fcoe_rx_list
);
2497 l2_thread
= kthread_create(bnx2fc_l2_rcv_thread
,
2499 "bnx2fc_l2_thread");
2500 if (IS_ERR(l2_thread
)) {
2501 rc
= PTR_ERR(l2_thread
);
2504 wake_up_process(l2_thread
);
2505 spin_lock_bh(&bg
->fcoe_rx_list
.lock
);
2506 bg
->thread
= l2_thread
;
2507 spin_unlock_bh(&bg
->fcoe_rx_list
.lock
);
2509 for_each_possible_cpu(cpu
) {
2510 p
= &per_cpu(bnx2fc_percpu
, cpu
);
2511 INIT_LIST_HEAD(&p
->work_list
);
2512 spin_lock_init(&p
->fp_work_lock
);
2515 for_each_online_cpu(cpu
) {
2516 bnx2fc_percpu_thread_create(cpu
);
2519 /* Initialize per CPU interrupt thread */
2520 register_hotcpu_notifier(&bnx2fc_cpu_notifier
);
2522 cnic_register_driver(CNIC_ULP_FCOE
, &bnx2fc_cnic_cb
);
2527 destroy_workqueue(bnx2fc_wq
);
2529 bnx2fc_release_transport();
2531 fcoe_transport_detach(&bnx2fc_transport
);
2536 static void __exit
bnx2fc_mod_exit(void)
2538 LIST_HEAD(to_be_deleted
);
2539 struct bnx2fc_hba
*hba
, *next
;
2540 struct fcoe_percpu_s
*bg
;
2541 struct task_struct
*l2_thread
;
2542 struct sk_buff
*skb
;
2543 unsigned int cpu
= 0;
2546 * NOTE: Since cnic calls register_driver routine rtnl_lock,
2547 * it will have higher precedence than bnx2fc_dev_lock.
2548 * unregister_device() cannot be called with bnx2fc_dev_lock
2551 mutex_lock(&bnx2fc_dev_lock
);
2552 list_splice(&adapter_list
, &to_be_deleted
);
2553 INIT_LIST_HEAD(&adapter_list
);
2555 mutex_unlock(&bnx2fc_dev_lock
);
2557 /* Unregister with cnic */
2558 list_for_each_entry_safe(hba
, next
, &to_be_deleted
, list
) {
2559 list_del_init(&hba
->list
);
2560 printk(KERN_ERR PFX
"MOD_EXIT:destroy hba = 0x%p\n",
2562 bnx2fc_ulp_stop(hba
);
2563 /* unregister cnic device */
2564 if (test_and_clear_bit(BNX2FC_CNIC_REGISTERED
,
2565 &hba
->reg_with_cnic
))
2566 hba
->cnic
->unregister_device(hba
->cnic
,
2568 bnx2fc_hba_destroy(hba
);
2570 cnic_unregister_driver(CNIC_ULP_FCOE
);
2572 /* Destroy global thread */
2573 bg
= &bnx2fc_global
;
2574 spin_lock_bh(&bg
->fcoe_rx_list
.lock
);
2575 l2_thread
= bg
->thread
;
2577 while ((skb
= __skb_dequeue(&bg
->fcoe_rx_list
)) != NULL
)
2580 spin_unlock_bh(&bg
->fcoe_rx_list
.lock
);
2583 kthread_stop(l2_thread
);
2585 unregister_hotcpu_notifier(&bnx2fc_cpu_notifier
);
2587 /* Destroy per cpu threads */
2588 for_each_online_cpu(cpu
) {
2589 bnx2fc_percpu_thread_destroy(cpu
);
2592 destroy_workqueue(bnx2fc_wq
);
2594 * detach from scsi transport
2595 * must happen after all destroys are done
2597 bnx2fc_release_transport();
2599 /* detach from fcoe transport */
2600 fcoe_transport_detach(&bnx2fc_transport
);
2603 module_init(bnx2fc_mod_init
);
2604 module_exit(bnx2fc_mod_exit
);
2606 static struct fcoe_sysfs_function_template bnx2fc_fcoe_sysfs_templ
= {
2607 .set_fcoe_ctlr_enabled
= bnx2fc_ctlr_enabled
,
2608 .get_fcoe_ctlr_link_fail
= fcoe_ctlr_get_lesb
,
2609 .get_fcoe_ctlr_vlink_fail
= fcoe_ctlr_get_lesb
,
2610 .get_fcoe_ctlr_miss_fka
= fcoe_ctlr_get_lesb
,
2611 .get_fcoe_ctlr_symb_err
= fcoe_ctlr_get_lesb
,
2612 .get_fcoe_ctlr_err_block
= fcoe_ctlr_get_lesb
,
2613 .get_fcoe_ctlr_fcs_error
= fcoe_ctlr_get_lesb
,
2615 .get_fcoe_fcf_selected
= fcoe_fcf_get_selected
,
2616 .get_fcoe_fcf_vlan_id
= bnx2fc_fcf_get_vlan_id
,
2619 static struct fc_function_template bnx2fc_transport_function
= {
2620 .show_host_node_name
= 1,
2621 .show_host_port_name
= 1,
2622 .show_host_supported_classes
= 1,
2623 .show_host_supported_fc4s
= 1,
2624 .show_host_active_fc4s
= 1,
2625 .show_host_maxframe_size
= 1,
2627 .show_host_port_id
= 1,
2628 .show_host_supported_speeds
= 1,
2629 .get_host_speed
= fc_get_host_speed
,
2630 .show_host_speed
= 1,
2631 .show_host_port_type
= 1,
2632 .get_host_port_state
= fc_get_host_port_state
,
2633 .show_host_port_state
= 1,
2634 .show_host_symbolic_name
= 1,
2636 .dd_fcrport_size
= (sizeof(struct fc_rport_libfc_priv
) +
2637 sizeof(struct bnx2fc_rport
)),
2638 .show_rport_maxframe_size
= 1,
2639 .show_rport_supported_classes
= 1,
2641 .show_host_fabric_name
= 1,
2642 .show_starget_node_name
= 1,
2643 .show_starget_port_name
= 1,
2644 .show_starget_port_id
= 1,
2645 .set_rport_dev_loss_tmo
= fc_set_rport_loss_tmo
,
2646 .show_rport_dev_loss_tmo
= 1,
2647 .get_fc_host_stats
= bnx2fc_get_host_stats
,
2649 .issue_fc_host_lip
= bnx2fc_fcoe_reset
,
2651 .terminate_rport_io
= fc_rport_terminate_io
,
2653 .vport_create
= bnx2fc_vport_create
,
2654 .vport_delete
= bnx2fc_vport_destroy
,
2655 .vport_disable
= bnx2fc_vport_disable
,
2656 .bsg_request
= fc_lport_bsg_request
,
2659 static struct fc_function_template bnx2fc_vport_xport_function
= {
2660 .show_host_node_name
= 1,
2661 .show_host_port_name
= 1,
2662 .show_host_supported_classes
= 1,
2663 .show_host_supported_fc4s
= 1,
2664 .show_host_active_fc4s
= 1,
2665 .show_host_maxframe_size
= 1,
2667 .show_host_port_id
= 1,
2668 .show_host_supported_speeds
= 1,
2669 .get_host_speed
= fc_get_host_speed
,
2670 .show_host_speed
= 1,
2671 .show_host_port_type
= 1,
2672 .get_host_port_state
= fc_get_host_port_state
,
2673 .show_host_port_state
= 1,
2674 .show_host_symbolic_name
= 1,
2676 .dd_fcrport_size
= (sizeof(struct fc_rport_libfc_priv
) +
2677 sizeof(struct bnx2fc_rport
)),
2678 .show_rport_maxframe_size
= 1,
2679 .show_rport_supported_classes
= 1,
2681 .show_host_fabric_name
= 1,
2682 .show_starget_node_name
= 1,
2683 .show_starget_port_name
= 1,
2684 .show_starget_port_id
= 1,
2685 .set_rport_dev_loss_tmo
= fc_set_rport_loss_tmo
,
2686 .show_rport_dev_loss_tmo
= 1,
2687 .get_fc_host_stats
= fc_get_host_stats
,
2688 .issue_fc_host_lip
= bnx2fc_fcoe_reset
,
2689 .terminate_rport_io
= fc_rport_terminate_io
,
2690 .bsg_request
= fc_lport_bsg_request
,
2694 * scsi_host_template structure used while registering with SCSI-ml
2696 static struct scsi_host_template bnx2fc_shost_template
= {
2697 .module
= THIS_MODULE
,
2698 .name
= "Broadcom Offload FCoE Initiator",
2699 .queuecommand
= bnx2fc_queuecommand
,
2700 .eh_abort_handler
= bnx2fc_eh_abort
, /* abts */
2701 .eh_device_reset_handler
= bnx2fc_eh_device_reset
, /* lun reset */
2702 .eh_target_reset_handler
= bnx2fc_eh_target_reset
, /* tgt reset */
2703 .eh_host_reset_handler
= fc_eh_host_reset
,
2704 .slave_alloc
= fc_slave_alloc
,
2705 .change_queue_depth
= fc_change_queue_depth
,
2706 .change_queue_type
= fc_change_queue_type
,
2709 .can_queue
= BNX2FC_CAN_QUEUE
,
2710 .use_clustering
= ENABLE_CLUSTERING
,
2711 .sg_tablesize
= BNX2FC_MAX_BDS_PER_CMD
,
2712 .max_sectors
= 1024,
2715 static struct libfc_function_template bnx2fc_libfc_fcn_templ
= {
2716 .frame_send
= bnx2fc_xmit
,
2717 .elsct_send
= bnx2fc_elsct_send
,
2718 .fcp_abort_io
= bnx2fc_abort_io
,
2719 .fcp_cleanup
= bnx2fc_cleanup
,
2720 .get_lesb
= fcoe_get_lesb
,
2721 .rport_event_callback
= bnx2fc_rport_event_handler
,
2725 * bnx2fc_cnic_cb - global template of bnx2fc - cnic driver interface
2726 * structure carrying callback function pointers
2728 static struct cnic_ulp_ops bnx2fc_cnic_cb
= {
2729 .owner
= THIS_MODULE
,
2730 .cnic_init
= bnx2fc_ulp_init
,
2731 .cnic_exit
= bnx2fc_ulp_exit
,
2732 .cnic_start
= bnx2fc_ulp_start
,
2733 .cnic_stop
= bnx2fc_ulp_stop
,
2734 .indicate_kcqes
= bnx2fc_indicate_kcqe
,
2735 .indicate_netevent
= bnx2fc_indicate_netevent
,
2736 .cnic_get_stats
= bnx2fc_ulp_get_stats
,