Commit | Line | Data |
---|---|---|
853e2bd2 BG |
1 | /* bnx2fc_fcoe.c: Broadcom NetXtreme II Linux FCoE offload driver. |
2 | * This file contains the code that interacts with libfc, libfcoe, | |
3 | * cnic modules to create FCoE instances, send/receive non-offloaded | |
4 | * FIP/FCoE packets, listen to link events etc. | |
5 | * | |
9b35baae | 6 | * Copyright (c) 2008 - 2011 Broadcom Corporation |
853e2bd2 BG |
7 | * |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation. | |
11 | * | |
12 | * Written by: Bhanu Prakash Gollapudi (bprakash@broadcom.com) | |
13 | */ | |
14 | ||
15 | #include "bnx2fc.h" | |
16 | ||
17 | static struct list_head adapter_list; | |
aea71a02 | 18 | static struct list_head if_list; |
853e2bd2 BG |
19 | static u32 adapter_count; |
20 | static DEFINE_MUTEX(bnx2fc_dev_lock); | |
21 | DEFINE_PER_CPU(struct bnx2fc_percpu_s, bnx2fc_percpu); | |
22 | ||
23 | #define DRV_MODULE_NAME "bnx2fc" | |
24 | #define DRV_MODULE_VERSION BNX2FC_VERSION | |
eb47aa2c | 25 | #define DRV_MODULE_RELDATE "Jun 04, 2012" |
853e2bd2 BG |
26 | |
27 | ||
28 | static char version[] __devinitdata = | |
29 | "Broadcom NetXtreme II FCoE Driver " DRV_MODULE_NAME \ | |
30 | " v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n"; | |
31 | ||
32 | ||
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); | |
37 | ||
38 | #define BNX2FC_MAX_QUEUE_DEPTH 256 | |
39 | #define BNX2FC_MIN_QUEUE_DEPTH 32 | |
40 | #define FCOE_WORD_TO_BYTE 4 | |
41 | ||
42 | static struct scsi_transport_template *bnx2fc_transport_template; | |
43 | static struct scsi_transport_template *bnx2fc_vport_xport_template; | |
44 | ||
45 | struct workqueue_struct *bnx2fc_wq; | |
46 | ||
47 | /* bnx2fc structure needs only one instance of the fcoe_percpu_s structure. | |
48 | * Here the io threads are per cpu but the l2 thread is just one | |
49 | */ | |
50 | struct fcoe_percpu_s bnx2fc_global; | |
51 | DEFINE_SPINLOCK(bnx2fc_global_lock); | |
52 | ||
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; | |
8d55e507 | 57 | static struct fcoe_sysfs_function_template bnx2fc_fcoe_sysfs_templ; |
853e2bd2 BG |
58 | static struct fc_function_template bnx2fc_vport_xport_function; |
59 | static int bnx2fc_create(struct net_device *netdev, enum fip_state fip_mode); | |
eccdcd02 | 60 | static void __bnx2fc_destroy(struct bnx2fc_interface *interface); |
853e2bd2 BG |
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); | |
64 | ||
65 | static void bnx2fc_recv_frame(struct sk_buff *skb); | |
66 | ||
aea71a02 | 67 | static void bnx2fc_start_disc(struct bnx2fc_interface *interface); |
853e2bd2 | 68 | static int bnx2fc_shost_config(struct fc_lport *lport, struct device *dev); |
853e2bd2 BG |
69 | static int bnx2fc_lport_config(struct fc_lport *lport); |
70 | static int bnx2fc_em_config(struct fc_lport *lport); | |
71 | static int bnx2fc_bind_adapter_devices(struct bnx2fc_hba *hba); | |
72 | static void bnx2fc_unbind_adapter_devices(struct bnx2fc_hba *hba); | |
73 | static int bnx2fc_bind_pcidev(struct bnx2fc_hba *hba); | |
74 | static void bnx2fc_unbind_pcidev(struct bnx2fc_hba *hba); | |
aea71a02 | 75 | static struct fc_lport *bnx2fc_if_create(struct bnx2fc_interface *interface, |
853e2bd2 BG |
76 | struct device *parent, int npiv); |
77 | static void bnx2fc_destroy_work(struct work_struct *work); | |
78 | ||
79 | static struct bnx2fc_hba *bnx2fc_hba_lookup(struct net_device *phys_dev); | |
aea71a02 BPG |
80 | static struct bnx2fc_interface *bnx2fc_interface_lookup(struct net_device |
81 | *phys_dev); | |
abc49a93 | 82 | static inline void bnx2fc_interface_put(struct bnx2fc_interface *interface); |
853e2bd2 BG |
83 | static struct bnx2fc_hba *bnx2fc_find_hba_for_cnic(struct cnic_dev *cnic); |
84 | ||
85 | static int bnx2fc_fw_init(struct bnx2fc_hba *hba); | |
86 | static void bnx2fc_fw_destroy(struct bnx2fc_hba *hba); | |
87 | ||
88 | static void bnx2fc_port_shutdown(struct fc_lport *lport); | |
aea71a02 | 89 | static void bnx2fc_stop(struct bnx2fc_interface *interface); |
853e2bd2 BG |
90 | static int __init bnx2fc_mod_init(void); |
91 | static void __exit bnx2fc_mod_exit(void); | |
8d55e507 | 92 | static void bnx2fc_ctlr_get_lesb(struct fcoe_ctlr_device *ctlr_dev); |
853e2bd2 BG |
93 | |
94 | unsigned int bnx2fc_debug_level; | |
95 | module_param_named(debug_logging, bnx2fc_debug_level, int, S_IRUGO|S_IWUSR); | |
96 | ||
97 | static int bnx2fc_cpu_callback(struct notifier_block *nfb, | |
98 | unsigned long action, void *hcpu); | |
99 | /* notification function for CPU hotplug events */ | |
100 | static struct notifier_block bnx2fc_cpu_notifier = { | |
101 | .notifier_call = bnx2fc_cpu_callback, | |
102 | }; | |
103 | ||
f72f6979 BPG |
104 | static inline struct net_device *bnx2fc_netdev(const struct fc_lport *lport) |
105 | { | |
106 | return ((struct bnx2fc_interface *) | |
107 | ((struct fcoe_port *)lport_priv(lport))->priv)->netdev; | |
108 | } | |
109 | ||
110 | /** | |
111 | * bnx2fc_get_lesb() - Fill the FCoE Link Error Status Block | |
112 | * @lport: the local port | |
113 | * @fc_lesb: the link error status block | |
114 | */ | |
115 | static void bnx2fc_get_lesb(struct fc_lport *lport, | |
116 | struct fc_els_lesb *fc_lesb) | |
117 | { | |
118 | struct net_device *netdev = bnx2fc_netdev(lport); | |
119 | ||
120 | __fcoe_get_lesb(lport, fc_lesb, netdev); | |
121 | } | |
122 | ||
8d55e507 RL |
123 | static void bnx2fc_ctlr_get_lesb(struct fcoe_ctlr_device *ctlr_dev) |
124 | { | |
125 | struct fcoe_ctlr *fip = fcoe_ctlr_device_priv(ctlr_dev); | |
126 | struct net_device *netdev = bnx2fc_netdev(fip->lp); | |
127 | struct fcoe_fc_els_lesb *fcoe_lesb; | |
128 | struct fc_els_lesb fc_lesb; | |
129 | ||
130 | __fcoe_get_lesb(fip->lp, &fc_lesb, netdev); | |
131 | fcoe_lesb = (struct fcoe_fc_els_lesb *)(&fc_lesb); | |
132 | ||
133 | ctlr_dev->lesb.lesb_link_fail = | |
134 | ntohl(fcoe_lesb->lesb_link_fail); | |
135 | ctlr_dev->lesb.lesb_vlink_fail = | |
136 | ntohl(fcoe_lesb->lesb_vlink_fail); | |
137 | ctlr_dev->lesb.lesb_miss_fka = | |
138 | ntohl(fcoe_lesb->lesb_miss_fka); | |
139 | ctlr_dev->lesb.lesb_symb_err = | |
140 | ntohl(fcoe_lesb->lesb_symb_err); | |
141 | ctlr_dev->lesb.lesb_err_block = | |
142 | ntohl(fcoe_lesb->lesb_err_block); | |
143 | ctlr_dev->lesb.lesb_fcs_error = | |
144 | ntohl(fcoe_lesb->lesb_fcs_error); | |
145 | } | |
146 | EXPORT_SYMBOL(bnx2fc_ctlr_get_lesb); | |
147 | ||
148 | static void bnx2fc_fcf_get_vlan_id(struct fcoe_fcf_device *fcf_dev) | |
149 | { | |
150 | struct fcoe_ctlr_device *ctlr_dev = | |
151 | fcoe_fcf_dev_to_ctlr_dev(fcf_dev); | |
152 | struct fcoe_ctlr *ctlr = fcoe_ctlr_device_priv(ctlr_dev); | |
153 | struct bnx2fc_interface *fcoe = fcoe_ctlr_priv(ctlr); | |
154 | ||
155 | fcf_dev->vlan_id = fcoe->vlan_id; | |
156 | } | |
157 | ||
853e2bd2 BG |
158 | static void bnx2fc_clean_rx_queue(struct fc_lport *lp) |
159 | { | |
160 | struct fcoe_percpu_s *bg; | |
161 | struct fcoe_rcv_info *fr; | |
162 | struct sk_buff_head *list; | |
163 | struct sk_buff *skb, *next; | |
164 | struct sk_buff *head; | |
165 | ||
166 | bg = &bnx2fc_global; | |
167 | spin_lock_bh(&bg->fcoe_rx_list.lock); | |
168 | list = &bg->fcoe_rx_list; | |
169 | head = list->next; | |
170 | for (skb = head; skb != (struct sk_buff *)list; | |
171 | skb = next) { | |
172 | next = skb->next; | |
173 | fr = fcoe_dev_from_skb(skb); | |
174 | if (fr->fr_dev == lp) { | |
175 | __skb_unlink(skb, list); | |
176 | kfree_skb(skb); | |
177 | } | |
178 | } | |
179 | spin_unlock_bh(&bg->fcoe_rx_list.lock); | |
180 | } | |
181 | ||
182 | int bnx2fc_get_paged_crc_eof(struct sk_buff *skb, int tlen) | |
183 | { | |
184 | int rc; | |
185 | spin_lock(&bnx2fc_global_lock); | |
186 | rc = fcoe_get_paged_crc_eof(skb, tlen, &bnx2fc_global); | |
187 | spin_unlock(&bnx2fc_global_lock); | |
188 | ||
189 | return rc; | |
190 | } | |
191 | ||
192 | static void bnx2fc_abort_io(struct fc_lport *lport) | |
193 | { | |
194 | /* | |
195 | * This function is no-op for bnx2fc, but we do | |
196 | * not want to leave it as NULL either, as libfc | |
197 | * can call the default function which is | |
198 | * fc_fcp_abort_io. | |
199 | */ | |
200 | } | |
201 | ||
202 | static void bnx2fc_cleanup(struct fc_lport *lport) | |
203 | { | |
204 | struct fcoe_port *port = lport_priv(lport); | |
aea71a02 BPG |
205 | struct bnx2fc_interface *interface = port->priv; |
206 | struct bnx2fc_hba *hba = interface->hba; | |
853e2bd2 BG |
207 | struct bnx2fc_rport *tgt; |
208 | int i; | |
209 | ||
210 | BNX2FC_MISC_DBG("Entered %s\n", __func__); | |
211 | mutex_lock(&hba->hba_mutex); | |
212 | spin_lock_bh(&hba->hba_lock); | |
213 | for (i = 0; i < BNX2FC_NUM_MAX_SESS; i++) { | |
214 | tgt = hba->tgt_ofld_list[i]; | |
215 | if (tgt) { | |
216 | /* Cleanup IOs belonging to requested vport */ | |
217 | if (tgt->port == port) { | |
218 | spin_unlock_bh(&hba->hba_lock); | |
219 | BNX2FC_TGT_DBG(tgt, "flush/cleanup\n"); | |
220 | bnx2fc_flush_active_ios(tgt); | |
221 | spin_lock_bh(&hba->hba_lock); | |
222 | } | |
223 | } | |
224 | } | |
225 | spin_unlock_bh(&hba->hba_lock); | |
226 | mutex_unlock(&hba->hba_mutex); | |
227 | } | |
228 | ||
229 | static int bnx2fc_xmit_l2_frame(struct bnx2fc_rport *tgt, | |
230 | struct fc_frame *fp) | |
231 | { | |
232 | struct fc_rport_priv *rdata = tgt->rdata; | |
233 | struct fc_frame_header *fh; | |
234 | int rc = 0; | |
235 | ||
236 | fh = fc_frame_header_get(fp); | |
237 | BNX2FC_TGT_DBG(tgt, "Xmit L2 frame rport = 0x%x, oxid = 0x%x, " | |
238 | "r_ctl = 0x%x\n", rdata->ids.port_id, | |
239 | ntohs(fh->fh_ox_id), fh->fh_r_ctl); | |
240 | if ((fh->fh_type == FC_TYPE_ELS) && | |
241 | (fh->fh_r_ctl == FC_RCTL_ELS_REQ)) { | |
242 | ||
243 | switch (fc_frame_payload_op(fp)) { | |
244 | case ELS_ADISC: | |
245 | rc = bnx2fc_send_adisc(tgt, fp); | |
246 | break; | |
247 | case ELS_LOGO: | |
248 | rc = bnx2fc_send_logo(tgt, fp); | |
249 | break; | |
250 | case ELS_RLS: | |
251 | rc = bnx2fc_send_rls(tgt, fp); | |
252 | break; | |
253 | default: | |
254 | break; | |
255 | } | |
256 | } else if ((fh->fh_type == FC_TYPE_BLS) && | |
257 | (fh->fh_r_ctl == FC_RCTL_BA_ABTS)) | |
258 | BNX2FC_TGT_DBG(tgt, "ABTS frame\n"); | |
259 | else { | |
260 | BNX2FC_TGT_DBG(tgt, "Send L2 frame type 0x%x " | |
261 | "rctl 0x%x thru non-offload path\n", | |
262 | fh->fh_type, fh->fh_r_ctl); | |
263 | return -ENODEV; | |
264 | } | |
265 | if (rc) | |
266 | return -ENOMEM; | |
267 | else | |
268 | return 0; | |
269 | } | |
270 | ||
271 | /** | |
272 | * bnx2fc_xmit - bnx2fc's FCoE frame transmit function | |
273 | * | |
274 | * @lport: the associated local port | |
275 | * @fp: the fc_frame to be transmitted | |
276 | */ | |
277 | static int bnx2fc_xmit(struct fc_lport *lport, struct fc_frame *fp) | |
278 | { | |
279 | struct ethhdr *eh; | |
280 | struct fcoe_crc_eof *cp; | |
281 | struct sk_buff *skb; | |
282 | struct fc_frame_header *fh; | |
aea71a02 | 283 | struct bnx2fc_interface *interface; |
fd8f8902 | 284 | struct fcoe_ctlr *ctlr; |
aea71a02 | 285 | struct bnx2fc_hba *hba; |
853e2bd2 BG |
286 | struct fcoe_port *port; |
287 | struct fcoe_hdr *hp; | |
288 | struct bnx2fc_rport *tgt; | |
1bd49b48 | 289 | struct fc_stats *stats; |
853e2bd2 BG |
290 | u8 sof, eof; |
291 | u32 crc; | |
292 | unsigned int hlen, tlen, elen; | |
293 | int wlen, rc = 0; | |
294 | ||
295 | port = (struct fcoe_port *)lport_priv(lport); | |
aea71a02 | 296 | interface = port->priv; |
fd8f8902 | 297 | ctlr = bnx2fc_to_ctlr(interface); |
aea71a02 | 298 | hba = interface->hba; |
853e2bd2 BG |
299 | |
300 | fh = fc_frame_header_get(fp); | |
301 | ||
302 | skb = fp_skb(fp); | |
303 | if (!lport->link_up) { | |
304 | BNX2FC_HBA_DBG(lport, "bnx2fc_xmit link down\n"); | |
305 | kfree_skb(skb); | |
306 | return 0; | |
307 | } | |
308 | ||
309 | if (unlikely(fh->fh_r_ctl == FC_RCTL_ELS_REQ)) { | |
fd8f8902 | 310 | if (!ctlr->sel_fcf) { |
853e2bd2 BG |
311 | BNX2FC_HBA_DBG(lport, "FCF not selected yet!\n"); |
312 | kfree_skb(skb); | |
313 | return -EINVAL; | |
314 | } | |
fd8f8902 | 315 | if (fcoe_ctlr_els_send(ctlr, lport, skb)) |
853e2bd2 BG |
316 | return 0; |
317 | } | |
318 | ||
319 | sof = fr_sof(fp); | |
320 | eof = fr_eof(fp); | |
321 | ||
322 | /* | |
323 | * Snoop the frame header to check if the frame is for | |
324 | * an offloaded session | |
325 | */ | |
326 | /* | |
327 | * tgt_ofld_list access is synchronized using | |
328 | * both hba mutex and hba lock. Atleast hba mutex or | |
329 | * hba lock needs to be held for read access. | |
330 | */ | |
331 | ||
332 | spin_lock_bh(&hba->hba_lock); | |
333 | tgt = bnx2fc_tgt_lookup(port, ntoh24(fh->fh_d_id)); | |
334 | if (tgt && (test_bit(BNX2FC_FLAG_SESSION_READY, &tgt->flags))) { | |
335 | /* This frame is for offloaded session */ | |
336 | BNX2FC_HBA_DBG(lport, "xmit: Frame is for offloaded session " | |
337 | "port_id = 0x%x\n", ntoh24(fh->fh_d_id)); | |
338 | spin_unlock_bh(&hba->hba_lock); | |
339 | rc = bnx2fc_xmit_l2_frame(tgt, fp); | |
340 | if (rc != -ENODEV) { | |
341 | kfree_skb(skb); | |
342 | return rc; | |
343 | } | |
344 | } else { | |
345 | spin_unlock_bh(&hba->hba_lock); | |
346 | } | |
347 | ||
348 | elen = sizeof(struct ethhdr); | |
349 | hlen = sizeof(struct fcoe_hdr); | |
350 | tlen = sizeof(struct fcoe_crc_eof); | |
351 | wlen = (skb->len - tlen + sizeof(crc)) / FCOE_WORD_TO_BYTE; | |
352 | ||
353 | skb->ip_summed = CHECKSUM_NONE; | |
354 | crc = fcoe_fc_crc(fp); | |
355 | ||
356 | /* copy port crc and eof to the skb buff */ | |
357 | if (skb_is_nonlinear(skb)) { | |
358 | skb_frag_t *frag; | |
359 | if (bnx2fc_get_paged_crc_eof(skb, tlen)) { | |
360 | kfree_skb(skb); | |
361 | return -ENOMEM; | |
362 | } | |
363 | frag = &skb_shinfo(skb)->frags[skb_shinfo(skb)->nr_frags - 1]; | |
77dfce07 | 364 | cp = kmap_atomic(skb_frag_page(frag)) + frag->page_offset; |
853e2bd2 BG |
365 | } else { |
366 | cp = (struct fcoe_crc_eof *)skb_put(skb, tlen); | |
367 | } | |
368 | ||
369 | memset(cp, 0, sizeof(*cp)); | |
370 | cp->fcoe_eof = eof; | |
371 | cp->fcoe_crc32 = cpu_to_le32(~crc); | |
372 | if (skb_is_nonlinear(skb)) { | |
77dfce07 | 373 | kunmap_atomic(cp); |
853e2bd2 BG |
374 | cp = NULL; |
375 | } | |
376 | ||
377 | /* adjust skb network/transport offsets to match mac/fcoe/port */ | |
378 | skb_push(skb, elen + hlen); | |
379 | skb_reset_mac_header(skb); | |
380 | skb_reset_network_header(skb); | |
381 | skb->mac_len = elen; | |
382 | skb->protocol = htons(ETH_P_FCOE); | |
aea71a02 | 383 | skb->dev = interface->netdev; |
853e2bd2 BG |
384 | |
385 | /* fill up mac and fcoe headers */ | |
386 | eh = eth_hdr(skb); | |
387 | eh->h_proto = htons(ETH_P_FCOE); | |
fd8f8902 | 388 | if (ctlr->map_dest) |
853e2bd2 BG |
389 | fc_fcoe_set_mac(eh->h_dest, fh->fh_d_id); |
390 | else | |
391 | /* insert GW address */ | |
fd8f8902 | 392 | memcpy(eh->h_dest, ctlr->dest_addr, ETH_ALEN); |
853e2bd2 | 393 | |
fd8f8902 RL |
394 | if (unlikely(ctlr->flogi_oxid != FC_XID_UNKNOWN)) |
395 | memcpy(eh->h_source, ctlr->ctl_src_addr, ETH_ALEN); | |
853e2bd2 BG |
396 | else |
397 | memcpy(eh->h_source, port->data_src_addr, ETH_ALEN); | |
398 | ||
399 | hp = (struct fcoe_hdr *)(eh + 1); | |
400 | memset(hp, 0, sizeof(*hp)); | |
401 | if (FC_FCOE_VER) | |
402 | FC_FCOE_ENCAPS_VER(hp, FC_FCOE_VER); | |
403 | hp->fcoe_sof = sof; | |
404 | ||
405 | /* fcoe lso, mss is in max_payload which is non-zero for FCP data */ | |
406 | if (lport->seq_offload && fr_max_payload(fp)) { | |
407 | skb_shinfo(skb)->gso_type = SKB_GSO_FCOE; | |
408 | skb_shinfo(skb)->gso_size = fr_max_payload(fp); | |
409 | } else { | |
410 | skb_shinfo(skb)->gso_type = 0; | |
411 | skb_shinfo(skb)->gso_size = 0; | |
412 | } | |
413 | ||
414 | /*update tx stats */ | |
1bd49b48 | 415 | stats = per_cpu_ptr(lport->stats, get_cpu()); |
853e2bd2 BG |
416 | stats->TxFrames++; |
417 | stats->TxWords += wlen; | |
418 | put_cpu(); | |
419 | ||
420 | /* send down to lld */ | |
421 | fr_dev(fp) = lport; | |
422 | if (port->fcoe_pending_queue.qlen) | |
423 | fcoe_check_wait_queue(lport, skb); | |
424 | else if (fcoe_start_io(skb)) | |
425 | fcoe_check_wait_queue(lport, skb); | |
426 | ||
427 | return 0; | |
428 | } | |
429 | ||
430 | /** | |
431 | * bnx2fc_rcv - This is bnx2fc's receive function called by NET_RX_SOFTIRQ | |
432 | * | |
433 | * @skb: the receive socket buffer | |
434 | * @dev: associated net device | |
435 | * @ptype: context | |
436 | * @olddev: last device | |
437 | * | |
438 | * This function receives the packet and builds FC frame and passes it up | |
439 | */ | |
440 | static int bnx2fc_rcv(struct sk_buff *skb, struct net_device *dev, | |
441 | struct packet_type *ptype, struct net_device *olddev) | |
442 | { | |
443 | struct fc_lport *lport; | |
aea71a02 | 444 | struct bnx2fc_interface *interface; |
fd8f8902 | 445 | struct fcoe_ctlr *ctlr; |
853e2bd2 BG |
446 | struct fc_frame_header *fh; |
447 | struct fcoe_rcv_info *fr; | |
448 | struct fcoe_percpu_s *bg; | |
449 | unsigned short oxid; | |
450 | ||
aea71a02 BPG |
451 | interface = container_of(ptype, struct bnx2fc_interface, |
452 | fcoe_packet_type); | |
fd8f8902 RL |
453 | ctlr = bnx2fc_to_ctlr(interface); |
454 | lport = ctlr->lp; | |
853e2bd2 BG |
455 | |
456 | if (unlikely(lport == NULL)) { | |
b2a554ff | 457 | printk(KERN_ERR PFX "bnx2fc_rcv: lport is NULL\n"); |
853e2bd2 BG |
458 | goto err; |
459 | } | |
460 | ||
461 | if (unlikely(eth_hdr(skb)->h_proto != htons(ETH_P_FCOE))) { | |
b2a554ff | 462 | printk(KERN_ERR PFX "bnx2fc_rcv: Wrong FC type frame\n"); |
853e2bd2 BG |
463 | goto err; |
464 | } | |
465 | ||
466 | /* | |
467 | * Check for minimum frame length, and make sure required FCoE | |
468 | * and FC headers are pulled into the linear data area. | |
469 | */ | |
470 | if (unlikely((skb->len < FCOE_MIN_FRAME) || | |
471 | !pskb_may_pull(skb, FCOE_HEADER_LEN))) | |
472 | goto err; | |
473 | ||
474 | skb_set_transport_header(skb, sizeof(struct fcoe_hdr)); | |
475 | fh = (struct fc_frame_header *) skb_transport_header(skb); | |
476 | ||
477 | oxid = ntohs(fh->fh_ox_id); | |
478 | ||
479 | fr = fcoe_dev_from_skb(skb); | |
480 | fr->fr_dev = lport; | |
853e2bd2 BG |
481 | |
482 | bg = &bnx2fc_global; | |
fc05ab74 | 483 | spin_lock(&bg->fcoe_rx_list.lock); |
853e2bd2 BG |
484 | |
485 | __skb_queue_tail(&bg->fcoe_rx_list, skb); | |
486 | if (bg->fcoe_rx_list.qlen == 1) | |
487 | wake_up_process(bg->thread); | |
488 | ||
fc05ab74 | 489 | spin_unlock(&bg->fcoe_rx_list.lock); |
853e2bd2 BG |
490 | |
491 | return 0; | |
492 | err: | |
493 | kfree_skb(skb); | |
494 | return -1; | |
495 | } | |
496 | ||
497 | static int bnx2fc_l2_rcv_thread(void *arg) | |
498 | { | |
499 | struct fcoe_percpu_s *bg = arg; | |
500 | struct sk_buff *skb; | |
501 | ||
502 | set_user_nice(current, -20); | |
503 | set_current_state(TASK_INTERRUPTIBLE); | |
504 | while (!kthread_should_stop()) { | |
505 | schedule(); | |
853e2bd2 BG |
506 | spin_lock_bh(&bg->fcoe_rx_list.lock); |
507 | while ((skb = __skb_dequeue(&bg->fcoe_rx_list)) != NULL) { | |
508 | spin_unlock_bh(&bg->fcoe_rx_list.lock); | |
509 | bnx2fc_recv_frame(skb); | |
510 | spin_lock_bh(&bg->fcoe_rx_list.lock); | |
511 | } | |
fee78712 | 512 | __set_current_state(TASK_INTERRUPTIBLE); |
853e2bd2 | 513 | spin_unlock_bh(&bg->fcoe_rx_list.lock); |
853e2bd2 | 514 | } |
fee78712 | 515 | __set_current_state(TASK_RUNNING); |
853e2bd2 BG |
516 | return 0; |
517 | } | |
518 | ||
519 | ||
520 | static void bnx2fc_recv_frame(struct sk_buff *skb) | |
521 | { | |
522 | u32 fr_len; | |
523 | struct fc_lport *lport; | |
524 | struct fcoe_rcv_info *fr; | |
1bd49b48 | 525 | struct fc_stats *stats; |
853e2bd2 BG |
526 | struct fc_frame_header *fh; |
527 | struct fcoe_crc_eof crc_eof; | |
528 | struct fc_frame *fp; | |
529 | struct fc_lport *vn_port; | |
530 | struct fcoe_port *port; | |
531 | u8 *mac = NULL; | |
532 | u8 *dest_mac = NULL; | |
533 | struct fcoe_hdr *hp; | |
534 | ||
535 | fr = fcoe_dev_from_skb(skb); | |
536 | lport = fr->fr_dev; | |
537 | if (unlikely(lport == NULL)) { | |
b2a554ff | 538 | printk(KERN_ERR PFX "Invalid lport struct\n"); |
853e2bd2 BG |
539 | kfree_skb(skb); |
540 | return; | |
541 | } | |
542 | ||
543 | if (skb_is_nonlinear(skb)) | |
544 | skb_linearize(skb); | |
545 | mac = eth_hdr(skb)->h_source; | |
546 | dest_mac = eth_hdr(skb)->h_dest; | |
547 | ||
548 | /* Pull the header */ | |
549 | hp = (struct fcoe_hdr *) skb_network_header(skb); | |
550 | fh = (struct fc_frame_header *) skb_transport_header(skb); | |
551 | skb_pull(skb, sizeof(struct fcoe_hdr)); | |
552 | fr_len = skb->len - sizeof(struct fcoe_crc_eof); | |
553 | ||
1bd49b48 | 554 | stats = per_cpu_ptr(lport->stats, get_cpu()); |
853e2bd2 BG |
555 | stats->RxFrames++; |
556 | stats->RxWords += fr_len / FCOE_WORD_TO_BYTE; | |
557 | ||
558 | fp = (struct fc_frame *)skb; | |
559 | fc_frame_init(fp); | |
560 | fr_dev(fp) = lport; | |
561 | fr_sof(fp) = hp->fcoe_sof; | |
562 | if (skb_copy_bits(skb, fr_len, &crc_eof, sizeof(crc_eof))) { | |
563 | put_cpu(); | |
564 | kfree_skb(skb); | |
565 | return; | |
566 | } | |
567 | fr_eof(fp) = crc_eof.fcoe_eof; | |
568 | fr_crc(fp) = crc_eof.fcoe_crc32; | |
569 | if (pskb_trim(skb, fr_len)) { | |
570 | put_cpu(); | |
571 | kfree_skb(skb); | |
572 | return; | |
573 | } | |
574 | ||
575 | fh = fc_frame_header_get(fp); | |
576 | ||
577 | vn_port = fc_vport_id_lookup(lport, ntoh24(fh->fh_d_id)); | |
578 | if (vn_port) { | |
579 | port = lport_priv(vn_port); | |
580 | if (compare_ether_addr(port->data_src_addr, dest_mac) | |
581 | != 0) { | |
582 | BNX2FC_HBA_DBG(lport, "fpma mismatch\n"); | |
583 | put_cpu(); | |
584 | kfree_skb(skb); | |
585 | return; | |
586 | } | |
587 | } | |
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 */ | |
591 | put_cpu(); | |
592 | kfree_skb(skb); | |
593 | return; | |
594 | } | |
595 | if (fh->fh_r_ctl == FC_RCTL_ELS_REQ && | |
596 | fh->fh_type == FC_TYPE_ELS) { | |
597 | switch (fc_frame_payload_op(fp)) { | |
598 | case ELS_LOGO: | |
599 | if (ntoh24(fh->fh_s_id) == FC_FID_FLOGI) { | |
600 | /* drop non-FIP LOGO */ | |
601 | put_cpu(); | |
602 | kfree_skb(skb); | |
603 | return; | |
604 | } | |
605 | break; | |
606 | } | |
607 | } | |
3f8744d1 BPG |
608 | |
609 | if (fh->fh_r_ctl == FC_RCTL_BA_ABTS) { | |
610 | /* Drop incoming ABTS */ | |
611 | put_cpu(); | |
612 | kfree_skb(skb); | |
613 | return; | |
614 | } | |
615 | ||
853e2bd2 BG |
616 | if (le32_to_cpu(fr_crc(fp)) != |
617 | ~crc32(~0, skb->data, fr_len)) { | |
618 | if (stats->InvalidCRCCount < 5) | |
619 | printk(KERN_WARNING PFX "dropping frame with " | |
620 | "CRC error\n"); | |
621 | stats->InvalidCRCCount++; | |
622 | put_cpu(); | |
623 | kfree_skb(skb); | |
624 | return; | |
625 | } | |
626 | put_cpu(); | |
627 | fc_exch_recv(lport, fp); | |
628 | } | |
629 | ||
630 | /** | |
631 | * bnx2fc_percpu_io_thread - thread per cpu for ios | |
632 | * | |
633 | * @arg: ptr to bnx2fc_percpu_info structure | |
634 | */ | |
635 | int bnx2fc_percpu_io_thread(void *arg) | |
636 | { | |
637 | struct bnx2fc_percpu_s *p = arg; | |
638 | struct bnx2fc_work *work, *tmp; | |
639 | LIST_HEAD(work_list); | |
640 | ||
641 | set_user_nice(current, -20); | |
642 | set_current_state(TASK_INTERRUPTIBLE); | |
643 | while (!kthread_should_stop()) { | |
644 | schedule(); | |
853e2bd2 BG |
645 | spin_lock_bh(&p->fp_work_lock); |
646 | while (!list_empty(&p->work_list)) { | |
647 | list_splice_init(&p->work_list, &work_list); | |
648 | spin_unlock_bh(&p->fp_work_lock); | |
649 | ||
650 | list_for_each_entry_safe(work, tmp, &work_list, list) { | |
651 | list_del_init(&work->list); | |
652 | bnx2fc_process_cq_compl(work->tgt, work->wqe); | |
653 | kfree(work); | |
654 | } | |
655 | ||
656 | spin_lock_bh(&p->fp_work_lock); | |
657 | } | |
fee78712 | 658 | __set_current_state(TASK_INTERRUPTIBLE); |
853e2bd2 | 659 | spin_unlock_bh(&p->fp_work_lock); |
853e2bd2 | 660 | } |
fee78712 | 661 | __set_current_state(TASK_RUNNING); |
853e2bd2 BG |
662 | |
663 | return 0; | |
664 | } | |
665 | ||
666 | static struct fc_host_statistics *bnx2fc_get_host_stats(struct Scsi_Host *shost) | |
667 | { | |
668 | struct fc_host_statistics *bnx2fc_stats; | |
669 | struct fc_lport *lport = shost_priv(shost); | |
670 | struct fcoe_port *port = lport_priv(lport); | |
aea71a02 BPG |
671 | struct bnx2fc_interface *interface = port->priv; |
672 | struct bnx2fc_hba *hba = interface->hba; | |
853e2bd2 BG |
673 | struct fcoe_statistics_params *fw_stats; |
674 | int rc = 0; | |
675 | ||
676 | fw_stats = (struct fcoe_statistics_params *)hba->stats_buffer; | |
677 | if (!fw_stats) | |
678 | return NULL; | |
679 | ||
680 | bnx2fc_stats = fc_get_host_stats(shost); | |
681 | ||
682 | init_completion(&hba->stat_req_done); | |
683 | if (bnx2fc_send_stat_req(hba)) | |
684 | return bnx2fc_stats; | |
685 | rc = wait_for_completion_timeout(&hba->stat_req_done, (2 * HZ)); | |
686 | if (!rc) { | |
687 | BNX2FC_HBA_DBG(lport, "FW stat req timed out\n"); | |
688 | return bnx2fc_stats; | |
689 | } | |
619c5cb6 | 690 | bnx2fc_stats->invalid_crc_count += fw_stats->rx_stat2.fc_crc_cnt; |
853e2bd2 BG |
691 | bnx2fc_stats->tx_frames += fw_stats->tx_stat.fcoe_tx_pkt_cnt; |
692 | bnx2fc_stats->tx_words += (fw_stats->tx_stat.fcoe_tx_byte_cnt) / 4; | |
693 | bnx2fc_stats->rx_frames += fw_stats->rx_stat0.fcoe_rx_pkt_cnt; | |
694 | bnx2fc_stats->rx_words += (fw_stats->rx_stat0.fcoe_rx_byte_cnt) / 4; | |
695 | ||
696 | bnx2fc_stats->dumped_frames = 0; | |
697 | bnx2fc_stats->lip_count = 0; | |
698 | bnx2fc_stats->nos_count = 0; | |
699 | bnx2fc_stats->loss_of_sync_count = 0; | |
700 | bnx2fc_stats->loss_of_signal_count = 0; | |
701 | bnx2fc_stats->prim_seq_protocol_err_count = 0; | |
702 | ||
703 | return bnx2fc_stats; | |
704 | } | |
705 | ||
706 | static int bnx2fc_shost_config(struct fc_lport *lport, struct device *dev) | |
707 | { | |
708 | struct fcoe_port *port = lport_priv(lport); | |
aea71a02 | 709 | struct bnx2fc_interface *interface = port->priv; |
853e2bd2 BG |
710 | struct Scsi_Host *shost = lport->host; |
711 | int rc = 0; | |
712 | ||
713 | shost->max_cmd_len = BNX2FC_MAX_CMD_LEN; | |
714 | shost->max_lun = BNX2FC_MAX_LUN; | |
715 | shost->max_id = BNX2FC_MAX_FCP_TGT; | |
716 | shost->max_channel = 0; | |
717 | if (lport->vport) | |
718 | shost->transportt = bnx2fc_vport_xport_template; | |
719 | else | |
720 | shost->transportt = bnx2fc_transport_template; | |
721 | ||
722 | /* Add the new host to SCSI-ml */ | |
723 | rc = scsi_add_host(lport->host, dev); | |
724 | if (rc) { | |
725 | printk(KERN_ERR PFX "Error on scsi_add_host\n"); | |
726 | return rc; | |
727 | } | |
728 | if (!lport->vport) | |
729 | fc_host_max_npiv_vports(lport->host) = USHRT_MAX; | |
730 | sprintf(fc_host_symbolic_name(lport->host), "%s v%s over %s", | |
731 | BNX2FC_NAME, BNX2FC_VERSION, | |
aea71a02 | 732 | interface->netdev->name); |
853e2bd2 BG |
733 | |
734 | return 0; | |
735 | } | |
736 | ||
853e2bd2 BG |
737 | static void bnx2fc_link_speed_update(struct fc_lport *lport) |
738 | { | |
739 | struct fcoe_port *port = lport_priv(lport); | |
aea71a02 BPG |
740 | struct bnx2fc_interface *interface = port->priv; |
741 | struct net_device *netdev = interface->netdev; | |
8ae6daca | 742 | struct ethtool_cmd ecmd; |
853e2bd2 | 743 | |
4bc71cb9 | 744 | if (!__ethtool_get_settings(netdev, &ecmd)) { |
853e2bd2 BG |
745 | lport->link_supported_speeds &= |
746 | ~(FC_PORTSPEED_1GBIT | FC_PORTSPEED_10GBIT); | |
747 | if (ecmd.supported & (SUPPORTED_1000baseT_Half | | |
748 | SUPPORTED_1000baseT_Full)) | |
749 | lport->link_supported_speeds |= FC_PORTSPEED_1GBIT; | |
750 | if (ecmd.supported & SUPPORTED_10000baseT_Full) | |
751 | lport->link_supported_speeds |= FC_PORTSPEED_10GBIT; | |
752 | ||
8ae6daca DD |
753 | switch (ethtool_cmd_speed(&ecmd)) { |
754 | case SPEED_1000: | |
853e2bd2 | 755 | lport->link_speed = FC_PORTSPEED_1GBIT; |
8ae6daca | 756 | break; |
a4dc08ce BPG |
757 | case SPEED_2500: |
758 | lport->link_speed = FC_PORTSPEED_2GBIT; | |
759 | break; | |
8ae6daca | 760 | case SPEED_10000: |
853e2bd2 | 761 | lport->link_speed = FC_PORTSPEED_10GBIT; |
8ae6daca DD |
762 | break; |
763 | } | |
853e2bd2 | 764 | } |
853e2bd2 BG |
765 | } |
766 | static int bnx2fc_link_ok(struct fc_lport *lport) | |
767 | { | |
768 | struct fcoe_port *port = lport_priv(lport); | |
aea71a02 BPG |
769 | struct bnx2fc_interface *interface = port->priv; |
770 | struct bnx2fc_hba *hba = interface->hba; | |
853e2bd2 BG |
771 | struct net_device *dev = hba->phys_dev; |
772 | int rc = 0; | |
773 | ||
774 | if ((dev->flags & IFF_UP) && netif_carrier_ok(dev)) | |
775 | clear_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state); | |
776 | else { | |
777 | set_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state); | |
778 | rc = -1; | |
779 | } | |
780 | return rc; | |
781 | } | |
782 | ||
783 | /** | |
784 | * bnx2fc_get_link_state - get network link state | |
785 | * | |
786 | * @hba: adapter instance pointer | |
787 | * | |
788 | * updates adapter structure flag based on netdev state | |
789 | */ | |
790 | void bnx2fc_get_link_state(struct bnx2fc_hba *hba) | |
791 | { | |
aea71a02 | 792 | if (test_bit(__LINK_STATE_NOCARRIER, &hba->phys_dev->state)) |
853e2bd2 BG |
793 | set_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state); |
794 | else | |
795 | clear_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state); | |
796 | } | |
797 | ||
52439607 | 798 | static int bnx2fc_net_config(struct fc_lport *lport, struct net_device *netdev) |
853e2bd2 BG |
799 | { |
800 | struct bnx2fc_hba *hba; | |
aea71a02 | 801 | struct bnx2fc_interface *interface; |
fd8f8902 | 802 | struct fcoe_ctlr *ctlr; |
853e2bd2 BG |
803 | struct fcoe_port *port; |
804 | u64 wwnn, wwpn; | |
805 | ||
806 | port = lport_priv(lport); | |
aea71a02 | 807 | interface = port->priv; |
fd8f8902 | 808 | ctlr = bnx2fc_to_ctlr(interface); |
aea71a02 | 809 | hba = interface->hba; |
853e2bd2 BG |
810 | |
811 | /* require support for get_pauseparam ethtool op. */ | |
812 | if (!hba->phys_dev->ethtool_ops || | |
813 | !hba->phys_dev->ethtool_ops->get_pauseparam) | |
814 | return -EOPNOTSUPP; | |
815 | ||
1294bfe6 | 816 | if (fc_set_mfs(lport, BNX2FC_MFS)) |
853e2bd2 BG |
817 | return -EINVAL; |
818 | ||
819 | skb_queue_head_init(&port->fcoe_pending_queue); | |
820 | port->fcoe_pending_queue_active = 0; | |
821 | setup_timer(&port->timer, fcoe_queue_timer, (unsigned long) lport); | |
822 | ||
823 | bnx2fc_link_speed_update(lport); | |
824 | ||
825 | if (!lport->vport) { | |
52439607 | 826 | if (fcoe_get_wwn(netdev, &wwnn, NETDEV_FCOE_WWNN)) |
fd8f8902 | 827 | wwnn = fcoe_wwn_from_mac(ctlr->ctl_src_addr, |
52439607 | 828 | 1, 0); |
853e2bd2 BG |
829 | BNX2FC_HBA_DBG(lport, "WWNN = 0x%llx\n", wwnn); |
830 | fc_set_wwnn(lport, wwnn); | |
831 | ||
52439607 | 832 | if (fcoe_get_wwn(netdev, &wwpn, NETDEV_FCOE_WWPN)) |
fd8f8902 | 833 | wwpn = fcoe_wwn_from_mac(ctlr->ctl_src_addr, |
52439607 BPG |
834 | 2, 0); |
835 | ||
853e2bd2 BG |
836 | BNX2FC_HBA_DBG(lport, "WWPN = 0x%llx\n", wwpn); |
837 | fc_set_wwpn(lport, wwpn); | |
838 | } | |
839 | ||
840 | return 0; | |
841 | } | |
842 | ||
843 | static void bnx2fc_destroy_timer(unsigned long data) | |
844 | { | |
845 | struct bnx2fc_hba *hba = (struct bnx2fc_hba *)data; | |
846 | ||
cd703ae7 BPG |
847 | printk(KERN_ERR PFX "ERROR:bnx2fc_destroy_timer - " |
848 | "Destroy compl not received!!\n"); | |
aea71a02 | 849 | set_bit(BNX2FC_FLAG_DESTROY_CMPL, &hba->flags); |
853e2bd2 BG |
850 | wake_up_interruptible(&hba->destroy_wait); |
851 | } | |
852 | ||
853 | /** | |
854 | * bnx2fc_indicate_netevent - Generic netdev event handler | |
855 | * | |
856 | * @context: adapter structure pointer | |
857 | * @event: event type | |
415199f2 | 858 | * @vlan_id: vlan id - associated vlan id with this event |
853e2bd2 BG |
859 | * |
860 | * Handles NETDEV_UP, NETDEV_DOWN, NETDEV_GOING_DOWN,NETDEV_CHANGE and | |
abc49a93 | 861 | * NETDEV_CHANGE_MTU events. Handle NETDEV_UNREGISTER only for vlans. |
853e2bd2 | 862 | */ |
415199f2 MC |
863 | static void bnx2fc_indicate_netevent(void *context, unsigned long event, |
864 | u16 vlan_id) | |
853e2bd2 BG |
865 | { |
866 | struct bnx2fc_hba *hba = (struct bnx2fc_hba *)context; | |
aea71a02 | 867 | struct fc_lport *lport; |
853e2bd2 | 868 | struct fc_lport *vport; |
abc49a93 | 869 | struct bnx2fc_interface *interface, *tmp; |
fd8f8902 | 870 | struct fcoe_ctlr *ctlr; |
aea71a02 | 871 | int wait_for_upload = 0; |
853e2bd2 BG |
872 | u32 link_possible = 1; |
873 | ||
abc49a93 | 874 | if (vlan_id != 0 && event != NETDEV_UNREGISTER) |
415199f2 MC |
875 | return; |
876 | ||
853e2bd2 BG |
877 | switch (event) { |
878 | case NETDEV_UP: | |
853e2bd2 BG |
879 | if (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state)) |
880 | printk(KERN_ERR "indicate_netevent: "\ | |
aea71a02 | 881 | "hba is not UP!!\n"); |
853e2bd2 BG |
882 | break; |
883 | ||
884 | case NETDEV_DOWN: | |
853e2bd2 BG |
885 | clear_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state); |
886 | clear_bit(ADAPTER_STATE_UP, &hba->adapter_state); | |
887 | link_possible = 0; | |
888 | break; | |
889 | ||
890 | case NETDEV_GOING_DOWN: | |
853e2bd2 BG |
891 | set_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state); |
892 | link_possible = 0; | |
893 | break; | |
894 | ||
895 | case NETDEV_CHANGE: | |
853e2bd2 BG |
896 | break; |
897 | ||
abc49a93 BPG |
898 | case NETDEV_UNREGISTER: |
899 | if (!vlan_id) | |
900 | return; | |
901 | mutex_lock(&bnx2fc_dev_lock); | |
902 | list_for_each_entry_safe(interface, tmp, &if_list, list) { | |
26b2982f NNS |
903 | if (interface->hba == hba && |
904 | interface->vlan_id == (vlan_id & VLAN_VID_MASK)) | |
905 | __bnx2fc_destroy(interface); | |
abc49a93 BPG |
906 | } |
907 | mutex_unlock(&bnx2fc_dev_lock); | |
908 | return; | |
909 | ||
853e2bd2 BG |
910 | default: |
911 | printk(KERN_ERR PFX "Unkonwn netevent %ld", event); | |
912 | return; | |
913 | } | |
914 | ||
aea71a02 BPG |
915 | mutex_lock(&bnx2fc_dev_lock); |
916 | list_for_each_entry(interface, &if_list, list) { | |
853e2bd2 | 917 | |
aea71a02 BPG |
918 | if (interface->hba != hba) |
919 | continue; | |
920 | ||
fd8f8902 RL |
921 | ctlr = bnx2fc_to_ctlr(interface); |
922 | lport = ctlr->lp; | |
aea71a02 BPG |
923 | BNX2FC_HBA_DBG(lport, "netevent handler - event=%s %ld\n", |
924 | interface->netdev->name, event); | |
925 | ||
926 | bnx2fc_link_speed_update(lport); | |
927 | ||
928 | if (link_possible && !bnx2fc_link_ok(lport)) { | |
c780673c BPG |
929 | /* Reset max recv frame size to default */ |
930 | fc_set_mfs(lport, BNX2FC_MFS); | |
8a5badf1 BPG |
931 | /* |
932 | * ctlr link up will only be handled during | |
933 | * enable to avoid sending discovery solicitation | |
934 | * on a stale vlan | |
935 | */ | |
fd8fa907 | 936 | if (interface->enabled) |
fd8f8902 RL |
937 | fcoe_ctlr_link_up(ctlr); |
938 | } else if (fcoe_ctlr_link_down(ctlr)) { | |
853e2bd2 BG |
939 | mutex_lock(&lport->lp_mutex); |
940 | list_for_each_entry(vport, &lport->vports, list) | |
941 | fc_host_port_type(vport->host) = | |
942 | FC_PORTTYPE_UNKNOWN; | |
943 | mutex_unlock(&lport->lp_mutex); | |
944 | fc_host_port_type(lport->host) = FC_PORTTYPE_UNKNOWN; | |
1bd49b48 | 945 | per_cpu_ptr(lport->stats, |
853e2bd2 BG |
946 | get_cpu())->LinkFailureCount++; |
947 | put_cpu(); | |
948 | fcoe_clean_pending_queue(lport); | |
aea71a02 BPG |
949 | wait_for_upload = 1; |
950 | } | |
951 | } | |
952 | mutex_unlock(&bnx2fc_dev_lock); | |
853e2bd2 | 953 | |
aea71a02 BPG |
954 | if (wait_for_upload) { |
955 | clear_bit(ADAPTER_STATE_READY, &hba->adapter_state); | |
956 | init_waitqueue_head(&hba->shutdown_wait); | |
957 | BNX2FC_MISC_DBG("indicate_netevent " | |
958 | "num_ofld_sess = %d\n", | |
959 | hba->num_ofld_sess); | |
960 | hba->wait_for_link_down = 1; | |
961 | wait_event_interruptible(hba->shutdown_wait, | |
962 | (hba->num_ofld_sess == 0)); | |
963 | BNX2FC_MISC_DBG("wakeup - num_ofld_sess = %d\n", | |
853e2bd2 | 964 | hba->num_ofld_sess); |
aea71a02 | 965 | hba->wait_for_link_down = 0; |
853e2bd2 | 966 | |
aea71a02 BPG |
967 | if (signal_pending(current)) |
968 | flush_signals(current); | |
853e2bd2 BG |
969 | } |
970 | } | |
971 | ||
972 | static int bnx2fc_libfc_config(struct fc_lport *lport) | |
973 | { | |
974 | ||
975 | /* Set the function pointers set by bnx2fc driver */ | |
976 | memcpy(&lport->tt, &bnx2fc_libfc_fcn_templ, | |
977 | sizeof(struct libfc_function_template)); | |
978 | fc_elsct_init(lport); | |
979 | fc_exch_init(lport); | |
980 | fc_rport_init(lport); | |
981 | fc_disc_init(lport); | |
982 | return 0; | |
983 | } | |
984 | ||
985 | static int bnx2fc_em_config(struct fc_lport *lport) | |
986 | { | |
7d742f65 BPG |
987 | int max_xid; |
988 | ||
989 | if (nr_cpu_ids <= 2) | |
990 | max_xid = FCOE_XIDS_PER_CPU; | |
991 | else | |
992 | max_xid = FCOE_MAX_XID; | |
853e2bd2 | 993 | if (!fc_exch_mgr_alloc(lport, FC_CLASS_3, FCOE_MIN_XID, |
7d742f65 | 994 | max_xid, NULL)) { |
853e2bd2 BG |
995 | printk(KERN_ERR PFX "em_config:fc_exch_mgr_alloc failed\n"); |
996 | return -ENOMEM; | |
997 | } | |
998 | ||
853e2bd2 BG |
999 | return 0; |
1000 | } | |
1001 | ||
1002 | static int bnx2fc_lport_config(struct fc_lport *lport) | |
1003 | { | |
1004 | lport->link_up = 0; | |
1005 | lport->qfull = 0; | |
44c570b5 BPG |
1006 | lport->max_retry_count = BNX2FC_MAX_RETRY_CNT; |
1007 | lport->max_rport_retry_count = BNX2FC_MAX_RPORT_RETRY_CNT; | |
853e2bd2 BG |
1008 | lport->e_d_tov = 2 * 1000; |
1009 | lport->r_a_tov = 10 * 1000; | |
1010 | ||
853e2bd2 BG |
1011 | lport->service_params = (FCP_SPPF_INIT_FCN | FCP_SPPF_RD_XRDY_DIS | |
1012 | FCP_SPPF_RETRY | FCP_SPPF_CONF_COMPL); | |
853e2bd2 BG |
1013 | lport->does_npiv = 1; |
1014 | ||
1015 | memset(&lport->rnid_gen, 0, sizeof(struct fc_els_rnid_gen)); | |
1016 | lport->rnid_gen.rnid_atype = BNX2FC_RNID_HBA; | |
1017 | ||
1018 | /* alloc stats structure */ | |
1019 | if (fc_lport_init_stats(lport)) | |
1020 | return -ENOMEM; | |
1021 | ||
1022 | /* Finish fc_lport configuration */ | |
1023 | fc_lport_config(lport); | |
1024 | ||
1025 | return 0; | |
1026 | } | |
1027 | ||
1028 | /** | |
1029 | * bnx2fc_fip_recv - handle a received FIP frame. | |
1030 | * | |
1031 | * @skb: the received skb | |
1032 | * @dev: associated &net_device | |
1033 | * @ptype: the &packet_type structure which was used to register this handler. | |
1034 | * @orig_dev: original receive &net_device, in case @ dev is a bond. | |
1035 | * | |
1036 | * Returns: 0 for success | |
1037 | */ | |
1038 | static int bnx2fc_fip_recv(struct sk_buff *skb, struct net_device *dev, | |
1039 | struct packet_type *ptype, | |
1040 | struct net_device *orig_dev) | |
1041 | { | |
aea71a02 | 1042 | struct bnx2fc_interface *interface; |
fd8f8902 | 1043 | struct fcoe_ctlr *ctlr; |
aea71a02 BPG |
1044 | interface = container_of(ptype, struct bnx2fc_interface, |
1045 | fip_packet_type); | |
fd8f8902 RL |
1046 | ctlr = bnx2fc_to_ctlr(interface); |
1047 | fcoe_ctlr_recv(ctlr, skb); | |
853e2bd2 BG |
1048 | return 0; |
1049 | } | |
1050 | ||
1051 | /** | |
1052 | * bnx2fc_update_src_mac - Update Ethernet MAC filters. | |
1053 | * | |
1054 | * @fip: FCoE controller. | |
1055 | * @old: Unicast MAC address to delete if the MAC is non-zero. | |
1056 | * @new: Unicast MAC address to add. | |
1057 | * | |
1058 | * Remove any previously-set unicast MAC filter. | |
1059 | * Add secondary FCoE MAC address filter for our OUI. | |
1060 | */ | |
1061 | static void bnx2fc_update_src_mac(struct fc_lport *lport, u8 *addr) | |
1062 | { | |
1063 | struct fcoe_port *port = lport_priv(lport); | |
1064 | ||
1065 | memcpy(port->data_src_addr, addr, ETH_ALEN); | |
1066 | } | |
1067 | ||
1068 | /** | |
1069 | * bnx2fc_get_src_mac - return the ethernet source address for an lport | |
1070 | * | |
1071 | * @lport: libfc port | |
1072 | */ | |
1073 | static u8 *bnx2fc_get_src_mac(struct fc_lport *lport) | |
1074 | { | |
1075 | struct fcoe_port *port; | |
1076 | ||
1077 | port = (struct fcoe_port *)lport_priv(lport); | |
1078 | return port->data_src_addr; | |
1079 | } | |
1080 | ||
1081 | /** | |
1082 | * bnx2fc_fip_send - send an Ethernet-encapsulated FIP frame. | |
1083 | * | |
1084 | * @fip: FCoE controller. | |
1085 | * @skb: FIP Packet. | |
1086 | */ | |
1087 | static void bnx2fc_fip_send(struct fcoe_ctlr *fip, struct sk_buff *skb) | |
1088 | { | |
1089 | skb->dev = bnx2fc_from_ctlr(fip)->netdev; | |
1090 | dev_queue_xmit(skb); | |
1091 | } | |
1092 | ||
1093 | static int bnx2fc_vport_create(struct fc_vport *vport, bool disabled) | |
1094 | { | |
1095 | struct Scsi_Host *shost = vport_to_shost(vport); | |
1096 | struct fc_lport *n_port = shost_priv(shost); | |
1097 | struct fcoe_port *port = lport_priv(n_port); | |
aea71a02 BPG |
1098 | struct bnx2fc_interface *interface = port->priv; |
1099 | struct net_device *netdev = interface->netdev; | |
853e2bd2 | 1100 | struct fc_lport *vn_port; |
861efc54 BPG |
1101 | int rc; |
1102 | char buf[32]; | |
1103 | ||
1104 | rc = fcoe_validate_vport_create(vport); | |
1105 | if (rc) { | |
1106 | fcoe_wwn_to_str(vport->port_name, buf, sizeof(buf)); | |
1107 | printk(KERN_ERR PFX "Failed to create vport, " | |
1108 | "WWPN (0x%s) already exists\n", | |
1109 | buf); | |
1110 | return rc; | |
1111 | } | |
853e2bd2 | 1112 | |
aea71a02 | 1113 | if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &interface->hba->flags)) { |
853e2bd2 | 1114 | printk(KERN_ERR PFX "vn ports cannot be created on" |
aea71a02 | 1115 | "this interface\n"); |
853e2bd2 BG |
1116 | return -EIO; |
1117 | } | |
4bc71cb9 | 1118 | rtnl_lock(); |
853e2bd2 | 1119 | mutex_lock(&bnx2fc_dev_lock); |
aea71a02 | 1120 | vn_port = bnx2fc_if_create(interface, &vport->dev, 1); |
853e2bd2 | 1121 | mutex_unlock(&bnx2fc_dev_lock); |
4bc71cb9 | 1122 | rtnl_unlock(); |
853e2bd2 BG |
1123 | |
1124 | if (IS_ERR(vn_port)) { | |
1125 | printk(KERN_ERR PFX "bnx2fc_vport_create (%s) failed\n", | |
1126 | netdev->name); | |
1127 | return -EIO; | |
1128 | } | |
1129 | ||
1130 | if (disabled) { | |
1131 | fc_vport_set_state(vport, FC_VPORT_DISABLED); | |
1132 | } else { | |
1133 | vn_port->boot_time = jiffies; | |
1134 | fc_lport_init(vn_port); | |
1135 | fc_fabric_login(vn_port); | |
1136 | fc_vport_setlink(vn_port); | |
1137 | } | |
1138 | return 0; | |
1139 | } | |
1140 | ||
abc49a93 BPG |
1141 | static void bnx2fc_free_vport(struct bnx2fc_hba *hba, struct fc_lport *lport) |
1142 | { | |
1143 | struct bnx2fc_lport *blport, *tmp; | |
1144 | ||
1145 | spin_lock_bh(&hba->hba_lock); | |
1146 | list_for_each_entry_safe(blport, tmp, &hba->vports, list) { | |
1147 | if (blport->lport == lport) { | |
1148 | list_del(&blport->list); | |
1149 | kfree(blport); | |
1150 | } | |
1151 | } | |
1152 | spin_unlock_bh(&hba->hba_lock); | |
1153 | } | |
1154 | ||
853e2bd2 BG |
1155 | static int bnx2fc_vport_destroy(struct fc_vport *vport) |
1156 | { | |
1157 | struct Scsi_Host *shost = vport_to_shost(vport); | |
1158 | struct fc_lport *n_port = shost_priv(shost); | |
1159 | struct fc_lport *vn_port = vport->dd_data; | |
1160 | struct fcoe_port *port = lport_priv(vn_port); | |
abc49a93 | 1161 | struct bnx2fc_interface *interface = port->priv; |
cdf54668 BPG |
1162 | struct fc_lport *v_port; |
1163 | bool found = false; | |
853e2bd2 BG |
1164 | |
1165 | mutex_lock(&n_port->lp_mutex); | |
cdf54668 BPG |
1166 | list_for_each_entry(v_port, &n_port->vports, list) |
1167 | if (v_port->vport == vport) { | |
1168 | found = true; | |
1169 | break; | |
1170 | } | |
1171 | ||
1172 | if (!found) { | |
1173 | mutex_unlock(&n_port->lp_mutex); | |
1174 | return -ENOENT; | |
1175 | } | |
853e2bd2 BG |
1176 | list_del(&vn_port->list); |
1177 | mutex_unlock(&n_port->lp_mutex); | |
abc49a93 BPG |
1178 | bnx2fc_free_vport(interface->hba, port->lport); |
1179 | bnx2fc_port_shutdown(port->lport); | |
1180 | bnx2fc_interface_put(interface); | |
853e2bd2 BG |
1181 | queue_work(bnx2fc_wq, &port->destroy_work); |
1182 | return 0; | |
1183 | } | |
1184 | ||
1185 | static int bnx2fc_vport_disable(struct fc_vport *vport, bool disable) | |
1186 | { | |
1187 | struct fc_lport *lport = vport->dd_data; | |
1188 | ||
1189 | if (disable) { | |
1190 | fc_vport_set_state(vport, FC_VPORT_DISABLED); | |
1191 | fc_fabric_logoff(lport); | |
1192 | } else { | |
1193 | lport->boot_time = jiffies; | |
1194 | fc_fabric_login(lport); | |
1195 | fc_vport_setlink(lport); | |
1196 | } | |
1197 | return 0; | |
1198 | } | |
1199 | ||
1200 | ||
776cebca | 1201 | static int bnx2fc_interface_setup(struct bnx2fc_interface *interface) |
853e2bd2 | 1202 | { |
aea71a02 BPG |
1203 | struct net_device *netdev = interface->netdev; |
1204 | struct net_device *physdev = interface->hba->phys_dev; | |
fd8f8902 | 1205 | struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface); |
853e2bd2 BG |
1206 | struct netdev_hw_addr *ha; |
1207 | int sel_san_mac = 0; | |
1208 | ||
853e2bd2 BG |
1209 | /* setup Source MAC Address */ |
1210 | rcu_read_lock(); | |
1211 | for_each_dev_addr(physdev, ha) { | |
1212 | BNX2FC_MISC_DBG("net_config: ha->type = %d, fip_mac = ", | |
1213 | ha->type); | |
1214 | printk(KERN_INFO "%2x:%2x:%2x:%2x:%2x:%2x\n", ha->addr[0], | |
1215 | ha->addr[1], ha->addr[2], ha->addr[3], | |
1216 | ha->addr[4], ha->addr[5]); | |
1217 | ||
1218 | if ((ha->type == NETDEV_HW_ADDR_T_SAN) && | |
1219 | (is_valid_ether_addr(ha->addr))) { | |
fd8f8902 | 1220 | memcpy(ctlr->ctl_src_addr, ha->addr, |
aea71a02 | 1221 | ETH_ALEN); |
853e2bd2 BG |
1222 | sel_san_mac = 1; |
1223 | BNX2FC_MISC_DBG("Found SAN MAC\n"); | |
1224 | } | |
1225 | } | |
1226 | rcu_read_unlock(); | |
1227 | ||
1228 | if (!sel_san_mac) | |
1229 | return -ENODEV; | |
1230 | ||
aea71a02 BPG |
1231 | interface->fip_packet_type.func = bnx2fc_fip_recv; |
1232 | interface->fip_packet_type.type = htons(ETH_P_FIP); | |
1233 | interface->fip_packet_type.dev = netdev; | |
1234 | dev_add_pack(&interface->fip_packet_type); | |
853e2bd2 | 1235 | |
aea71a02 BPG |
1236 | interface->fcoe_packet_type.func = bnx2fc_rcv; |
1237 | interface->fcoe_packet_type.type = __constant_htons(ETH_P_FCOE); | |
1238 | interface->fcoe_packet_type.dev = netdev; | |
1239 | dev_add_pack(&interface->fcoe_packet_type); | |
853e2bd2 BG |
1240 | |
1241 | return 0; | |
1242 | } | |
1243 | ||
1244 | static int bnx2fc_attach_transport(void) | |
1245 | { | |
1246 | bnx2fc_transport_template = | |
1247 | fc_attach_transport(&bnx2fc_transport_function); | |
1248 | ||
1249 | if (bnx2fc_transport_template == NULL) { | |
1250 | printk(KERN_ERR PFX "Failed to attach FC transport\n"); | |
1251 | return -ENODEV; | |
1252 | } | |
1253 | ||
1254 | bnx2fc_vport_xport_template = | |
1255 | fc_attach_transport(&bnx2fc_vport_xport_function); | |
1256 | if (bnx2fc_vport_xport_template == NULL) { | |
1257 | printk(KERN_ERR PFX | |
1258 | "Failed to attach FC transport for vport\n"); | |
1259 | fc_release_transport(bnx2fc_transport_template); | |
1260 | bnx2fc_transport_template = NULL; | |
1261 | return -ENODEV; | |
1262 | } | |
1263 | return 0; | |
1264 | } | |
1265 | static void bnx2fc_release_transport(void) | |
1266 | { | |
1267 | fc_release_transport(bnx2fc_transport_template); | |
1268 | fc_release_transport(bnx2fc_vport_xport_template); | |
1269 | bnx2fc_transport_template = NULL; | |
1270 | bnx2fc_vport_xport_template = NULL; | |
1271 | } | |
1272 | ||
1273 | static void bnx2fc_interface_release(struct kref *kref) | |
1274 | { | |
8d55e507 | 1275 | struct fcoe_ctlr_device *ctlr_dev; |
aea71a02 | 1276 | struct bnx2fc_interface *interface; |
fd8f8902 | 1277 | struct fcoe_ctlr *ctlr; |
853e2bd2 | 1278 | struct net_device *netdev; |
853e2bd2 | 1279 | |
aea71a02 | 1280 | interface = container_of(kref, struct bnx2fc_interface, kref); |
068bdce4 | 1281 | BNX2FC_MISC_DBG("Interface is being released\n"); |
853e2bd2 | 1282 | |
fd8f8902 | 1283 | ctlr = bnx2fc_to_ctlr(interface); |
8d55e507 | 1284 | ctlr_dev = fcoe_ctlr_to_ctlr_dev(ctlr); |
aea71a02 | 1285 | netdev = interface->netdev; |
853e2bd2 BG |
1286 | |
1287 | /* tear-down FIP controller */ | |
aea71a02 | 1288 | if (test_and_clear_bit(BNX2FC_CTLR_INIT_DONE, &interface->if_flags)) |
fd8f8902 | 1289 | fcoe_ctlr_destroy(ctlr); |
aea71a02 | 1290 | |
8d55e507 | 1291 | fcoe_ctlr_device_delete(ctlr_dev); |
853e2bd2 | 1292 | |
853e2bd2 BG |
1293 | dev_put(netdev); |
1294 | module_put(THIS_MODULE); | |
1295 | } | |
1296 | ||
aea71a02 | 1297 | static inline void bnx2fc_interface_get(struct bnx2fc_interface *interface) |
853e2bd2 | 1298 | { |
aea71a02 | 1299 | kref_get(&interface->kref); |
853e2bd2 BG |
1300 | } |
1301 | ||
aea71a02 | 1302 | static inline void bnx2fc_interface_put(struct bnx2fc_interface *interface) |
853e2bd2 | 1303 | { |
aea71a02 | 1304 | kref_put(&interface->kref, bnx2fc_interface_release); |
853e2bd2 | 1305 | } |
aea71a02 | 1306 | static void bnx2fc_hba_destroy(struct bnx2fc_hba *hba) |
853e2bd2 | 1307 | { |
aea71a02 BPG |
1308 | /* Free the command manager */ |
1309 | if (hba->cmd_mgr) { | |
1310 | bnx2fc_cmd_mgr_free(hba->cmd_mgr); | |
1311 | hba->cmd_mgr = NULL; | |
1312 | } | |
1313 | kfree(hba->tgt_ofld_list); | |
853e2bd2 BG |
1314 | bnx2fc_unbind_pcidev(hba); |
1315 | kfree(hba); | |
1316 | } | |
1317 | ||
1318 | /** | |
aea71a02 | 1319 | * bnx2fc_hba_create - create a new bnx2fc hba |
853e2bd2 BG |
1320 | * |
1321 | * @cnic: pointer to cnic device | |
1322 | * | |
aea71a02 BPG |
1323 | * Creates a new FCoE hba on the given device. |
1324 | * | |
853e2bd2 | 1325 | */ |
aea71a02 | 1326 | static struct bnx2fc_hba *bnx2fc_hba_create(struct cnic_dev *cnic) |
853e2bd2 BG |
1327 | { |
1328 | struct bnx2fc_hba *hba; | |
2e499d3c | 1329 | struct fcoe_capabilities *fcoe_cap; |
853e2bd2 BG |
1330 | int rc; |
1331 | ||
1332 | hba = kzalloc(sizeof(*hba), GFP_KERNEL); | |
1333 | if (!hba) { | |
1334 | printk(KERN_ERR PFX "Unable to allocate hba structure\n"); | |
1335 | return NULL; | |
1336 | } | |
1337 | spin_lock_init(&hba->hba_lock); | |
1338 | mutex_init(&hba->hba_mutex); | |
1339 | ||
1340 | hba->cnic = cnic; | |
1341 | rc = bnx2fc_bind_pcidev(hba); | |
aea71a02 BPG |
1342 | if (rc) { |
1343 | printk(KERN_ERR PFX "create_adapter: bind error\n"); | |
853e2bd2 | 1344 | goto bind_err; |
aea71a02 | 1345 | } |
853e2bd2 | 1346 | hba->phys_dev = cnic->netdev; |
aea71a02 BPG |
1347 | hba->next_conn_id = 0; |
1348 | ||
1349 | hba->tgt_ofld_list = | |
1350 | kzalloc(sizeof(struct bnx2fc_rport *) * BNX2FC_NUM_MAX_SESS, | |
1351 | GFP_KERNEL); | |
1352 | if (!hba->tgt_ofld_list) { | |
1353 | printk(KERN_ERR PFX "Unable to allocate tgt offload list\n"); | |
1354 | goto tgtofld_err; | |
1355 | } | |
1356 | ||
1357 | hba->num_ofld_sess = 0; | |
1358 | ||
1359 | hba->cmd_mgr = bnx2fc_cmd_mgr_alloc(hba, BNX2FC_MIN_XID, | |
1360 | BNX2FC_MAX_XID); | |
1361 | if (!hba->cmd_mgr) { | |
1362 | printk(KERN_ERR PFX "em_config:bnx2fc_cmd_mgr_alloc failed\n"); | |
1363 | goto cmgr_err; | |
1364 | } | |
2e499d3c BW |
1365 | fcoe_cap = &hba->fcoe_cap; |
1366 | ||
1367 | fcoe_cap->capability1 = BNX2FC_TM_MAX_SQES << | |
1368 | FCOE_IOS_PER_CONNECTION_SHIFT; | |
1369 | fcoe_cap->capability1 |= BNX2FC_NUM_MAX_SESS << | |
1370 | FCOE_LOGINS_PER_PORT_SHIFT; | |
1371 | fcoe_cap->capability2 = BNX2FC_MAX_OUTSTANDING_CMNDS << | |
1372 | FCOE_NUMBER_OF_EXCHANGES_SHIFT; | |
1373 | fcoe_cap->capability2 |= BNX2FC_MAX_NPIV << | |
1374 | FCOE_NPIV_WWN_PER_PORT_SHIFT; | |
1375 | fcoe_cap->capability3 = BNX2FC_NUM_MAX_SESS << | |
1376 | FCOE_TARGETS_SUPPORTED_SHIFT; | |
1377 | fcoe_cap->capability3 |= BNX2FC_MAX_OUTSTANDING_CMNDS << | |
1378 | FCOE_OUTSTANDING_COMMANDS_SHIFT; | |
1379 | fcoe_cap->capability4 = FCOE_CAPABILITY4_STATEFUL; | |
853e2bd2 BG |
1380 | |
1381 | init_waitqueue_head(&hba->shutdown_wait); | |
1382 | init_waitqueue_head(&hba->destroy_wait); | |
aea71a02 | 1383 | INIT_LIST_HEAD(&hba->vports); |
853e2bd2 BG |
1384 | |
1385 | return hba; | |
aea71a02 BPG |
1386 | |
1387 | cmgr_err: | |
1388 | kfree(hba->tgt_ofld_list); | |
1389 | tgtofld_err: | |
1390 | bnx2fc_unbind_pcidev(hba); | |
853e2bd2 | 1391 | bind_err: |
853e2bd2 BG |
1392 | kfree(hba); |
1393 | return NULL; | |
1394 | } | |
1395 | ||
aea71a02 BPG |
1396 | struct bnx2fc_interface *bnx2fc_interface_create(struct bnx2fc_hba *hba, |
1397 | struct net_device *netdev, | |
1398 | enum fip_state fip_mode) | |
853e2bd2 | 1399 | { |
8d55e507 | 1400 | struct fcoe_ctlr_device *ctlr_dev; |
aea71a02 | 1401 | struct bnx2fc_interface *interface; |
fd8f8902 RL |
1402 | struct fcoe_ctlr *ctlr; |
1403 | int size; | |
853e2bd2 | 1404 | int rc = 0; |
853e2bd2 | 1405 | |
fd8f8902 | 1406 | size = (sizeof(*interface) + sizeof(struct fcoe_ctlr)); |
8d55e507 RL |
1407 | ctlr_dev = fcoe_ctlr_device_add(&netdev->dev, &bnx2fc_fcoe_sysfs_templ, |
1408 | size); | |
1409 | if (!ctlr_dev) { | |
aea71a02 BPG |
1410 | printk(KERN_ERR PFX "Unable to allocate interface structure\n"); |
1411 | return NULL; | |
1412 | } | |
8d55e507 | 1413 | ctlr = fcoe_ctlr_device_priv(ctlr_dev); |
fd8f8902 | 1414 | interface = fcoe_ctlr_priv(ctlr); |
853e2bd2 | 1415 | dev_hold(netdev); |
aea71a02 BPG |
1416 | kref_init(&interface->kref); |
1417 | interface->hba = hba; | |
1418 | interface->netdev = netdev; | |
853e2bd2 BG |
1419 | |
1420 | /* Initialize FIP */ | |
fd8f8902 RL |
1421 | fcoe_ctlr_init(ctlr, fip_mode); |
1422 | ctlr->send = bnx2fc_fip_send; | |
1423 | ctlr->update_mac = bnx2fc_update_src_mac; | |
1424 | ctlr->get_src_addr = bnx2fc_get_src_mac; | |
aea71a02 | 1425 | set_bit(BNX2FC_CTLR_INIT_DONE, &interface->if_flags); |
853e2bd2 | 1426 | |
776cebca | 1427 | rc = bnx2fc_interface_setup(interface); |
aea71a02 BPG |
1428 | if (!rc) |
1429 | return interface; | |
853e2bd2 | 1430 | |
fd8f8902 | 1431 | fcoe_ctlr_destroy(ctlr); |
853e2bd2 | 1432 | dev_put(netdev); |
8d55e507 | 1433 | fcoe_ctlr_device_delete(ctlr_dev); |
aea71a02 | 1434 | return NULL; |
853e2bd2 BG |
1435 | } |
1436 | ||
1437 | /** | |
1438 | * bnx2fc_if_create - Create FCoE instance on a given interface | |
1439 | * | |
aea71a02 | 1440 | * @interface: FCoE interface to create a local port on |
853e2bd2 BG |
1441 | * @parent: Device pointer to be the parent in sysfs for the SCSI host |
1442 | * @npiv: Indicates if the port is vport or not | |
1443 | * | |
1444 | * Creates a fc_lport instance and a Scsi_Host instance and configure them. | |
1445 | * | |
1446 | * Returns: Allocated fc_lport or an error pointer | |
1447 | */ | |
aea71a02 | 1448 | static struct fc_lport *bnx2fc_if_create(struct bnx2fc_interface *interface, |
853e2bd2 BG |
1449 | struct device *parent, int npiv) |
1450 | { | |
fd8f8902 | 1451 | struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface); |
134a4e27 | 1452 | struct fc_lport *lport, *n_port; |
853e2bd2 BG |
1453 | struct fcoe_port *port; |
1454 | struct Scsi_Host *shost; | |
1455 | struct fc_vport *vport = dev_to_vport(parent); | |
d36b3279 | 1456 | struct bnx2fc_lport *blport; |
aea71a02 | 1457 | struct bnx2fc_hba *hba; |
853e2bd2 BG |
1458 | int rc = 0; |
1459 | ||
d36b3279 BPG |
1460 | blport = kzalloc(sizeof(struct bnx2fc_lport), GFP_KERNEL); |
1461 | if (!blport) { | |
fd8f8902 | 1462 | BNX2FC_HBA_DBG(ctlr->lp, "Unable to alloc blport\n"); |
d36b3279 BPG |
1463 | return NULL; |
1464 | } | |
1465 | ||
853e2bd2 | 1466 | /* Allocate Scsi_Host structure */ |
134a4e27 VD |
1467 | if (!npiv) |
1468 | lport = libfc_host_alloc(&bnx2fc_shost_template, sizeof(*port)); | |
1469 | else | |
1470 | lport = libfc_vport_create(vport, sizeof(*port)); | |
853e2bd2 BG |
1471 | |
1472 | if (!lport) { | |
1473 | printk(KERN_ERR PFX "could not allocate scsi host structure\n"); | |
d36b3279 | 1474 | goto free_blport; |
853e2bd2 BG |
1475 | } |
1476 | shost = lport->host; | |
1477 | port = lport_priv(lport); | |
1478 | port->lport = lport; | |
aea71a02 | 1479 | port->priv = interface; |
853e2bd2 BG |
1480 | INIT_WORK(&port->destroy_work, bnx2fc_destroy_work); |
1481 | ||
1482 | /* Configure fcoe_port */ | |
1483 | rc = bnx2fc_lport_config(lport); | |
1484 | if (rc) | |
1485 | goto lp_config_err; | |
1486 | ||
1487 | if (npiv) { | |
853e2bd2 BG |
1488 | printk(KERN_ERR PFX "Setting vport names, 0x%llX 0x%llX\n", |
1489 | vport->node_name, vport->port_name); | |
1490 | fc_set_wwnn(lport, vport->node_name); | |
1491 | fc_set_wwpn(lport, vport->port_name); | |
1492 | } | |
1493 | /* Configure netdev and networking properties of the lport */ | |
52439607 | 1494 | rc = bnx2fc_net_config(lport, interface->netdev); |
853e2bd2 BG |
1495 | if (rc) { |
1496 | printk(KERN_ERR PFX "Error on bnx2fc_net_config\n"); | |
1497 | goto lp_config_err; | |
1498 | } | |
1499 | ||
1500 | rc = bnx2fc_shost_config(lport, parent); | |
1501 | if (rc) { | |
1502 | printk(KERN_ERR PFX "Couldnt configure shost for %s\n", | |
aea71a02 | 1503 | interface->netdev->name); |
853e2bd2 BG |
1504 | goto lp_config_err; |
1505 | } | |
1506 | ||
1507 | /* Initialize the libfc library */ | |
1508 | rc = bnx2fc_libfc_config(lport); | |
1509 | if (rc) { | |
1510 | printk(KERN_ERR PFX "Couldnt configure libfc\n"); | |
1511 | goto shost_err; | |
1512 | } | |
1513 | fc_host_port_type(lport->host) = FC_PORTTYPE_UNKNOWN; | |
1514 | ||
1515 | /* Allocate exchange manager */ | |
134a4e27 | 1516 | if (!npiv) |
853e2bd2 | 1517 | rc = bnx2fc_em_config(lport); |
134a4e27 VD |
1518 | else { |
1519 | shost = vport_to_shost(vport); | |
1520 | n_port = shost_priv(shost); | |
1521 | rc = fc_exch_mgr_list_clone(n_port, lport); | |
1522 | } | |
1523 | ||
1524 | if (rc) { | |
1525 | printk(KERN_ERR PFX "Error on bnx2fc_em_config\n"); | |
1526 | goto shost_err; | |
853e2bd2 BG |
1527 | } |
1528 | ||
aea71a02 | 1529 | bnx2fc_interface_get(interface); |
d36b3279 | 1530 | |
aea71a02 | 1531 | hba = interface->hba; |
d36b3279 BPG |
1532 | spin_lock_bh(&hba->hba_lock); |
1533 | blport->lport = lport; | |
1534 | list_add_tail(&blport->list, &hba->vports); | |
1535 | spin_unlock_bh(&hba->hba_lock); | |
1536 | ||
853e2bd2 BG |
1537 | return lport; |
1538 | ||
1539 | shost_err: | |
1540 | scsi_remove_host(shost); | |
1541 | lp_config_err: | |
1542 | scsi_host_put(lport->host); | |
d36b3279 BPG |
1543 | free_blport: |
1544 | kfree(blport); | |
853e2bd2 BG |
1545 | return NULL; |
1546 | } | |
1547 | ||
013068fa | 1548 | static void bnx2fc_net_cleanup(struct bnx2fc_interface *interface) |
853e2bd2 BG |
1549 | { |
1550 | /* Dont listen for Ethernet packets anymore */ | |
aea71a02 BPG |
1551 | __dev_remove_pack(&interface->fcoe_packet_type); |
1552 | __dev_remove_pack(&interface->fip_packet_type); | |
853e2bd2 BG |
1553 | synchronize_net(); |
1554 | } | |
1555 | ||
776cebca | 1556 | static void bnx2fc_interface_cleanup(struct bnx2fc_interface *interface) |
853e2bd2 | 1557 | { |
fd8f8902 RL |
1558 | struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface); |
1559 | struct fc_lport *lport = ctlr->lp; | |
853e2bd2 | 1560 | struct fcoe_port *port = lport_priv(lport); |
9be17fc4 | 1561 | struct bnx2fc_hba *hba = interface->hba; |
853e2bd2 | 1562 | |
853e2bd2 BG |
1563 | /* Stop the transmit retry timer */ |
1564 | del_timer_sync(&port->timer); | |
1565 | ||
1566 | /* Free existing transmit skbs */ | |
1567 | fcoe_clean_pending_queue(lport); | |
1568 | ||
013068fa | 1569 | bnx2fc_net_cleanup(interface); |
9be17fc4 | 1570 | |
abc49a93 | 1571 | bnx2fc_free_vport(hba, lport); |
9be17fc4 BPG |
1572 | } |
1573 | ||
1574 | static void bnx2fc_if_destroy(struct fc_lport *lport) | |
1575 | { | |
1576 | ||
853e2bd2 BG |
1577 | /* Free queued packets for the receive thread */ |
1578 | bnx2fc_clean_rx_queue(lport); | |
1579 | ||
1580 | /* Detach from scsi-ml */ | |
1581 | fc_remove_host(lport->host); | |
1582 | scsi_remove_host(lport->host); | |
1583 | ||
1584 | /* | |
1585 | * Note that only the physical lport will have the exchange manager. | |
1586 | * for vports, this function is NOP | |
1587 | */ | |
1588 | fc_exch_mgr_free(lport); | |
1589 | ||
1590 | /* Free memory used by statistical counters */ | |
1591 | fc_lport_free_stats(lport); | |
1592 | ||
1593 | /* Release Scsi_Host */ | |
1594 | scsi_host_put(lport->host); | |
1595 | } | |
1596 | ||
eccdcd02 | 1597 | static void __bnx2fc_destroy(struct bnx2fc_interface *interface) |
abc49a93 | 1598 | { |
fd8f8902 RL |
1599 | struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface); |
1600 | struct fc_lport *lport = ctlr->lp; | |
0cbf32e1 | 1601 | struct fcoe_port *port = lport_priv(lport); |
abc49a93 BPG |
1602 | |
1603 | bnx2fc_interface_cleanup(interface); | |
1604 | bnx2fc_stop(interface); | |
abc49a93 | 1605 | list_del(&interface->list); |
abc49a93 | 1606 | bnx2fc_interface_put(interface); |
0cbf32e1 | 1607 | queue_work(bnx2fc_wq, &port->destroy_work); |
abc49a93 BPG |
1608 | } |
1609 | ||
853e2bd2 BG |
1610 | /** |
1611 | * bnx2fc_destroy - Destroy a bnx2fc FCoE interface | |
1612 | * | |
1613 | * @buffer: The name of the Ethernet interface to be destroyed | |
1614 | * @kp: The associated kernel parameter | |
1615 | * | |
1616 | * Called from sysfs. | |
1617 | * | |
1618 | * Returns: 0 for success | |
1619 | */ | |
1620 | static int bnx2fc_destroy(struct net_device *netdev) | |
1621 | { | |
aea71a02 | 1622 | struct bnx2fc_interface *interface = NULL; |
2a7b29c5 | 1623 | struct workqueue_struct *timer_work_queue; |
fd8f8902 | 1624 | struct fcoe_ctlr *ctlr; |
853e2bd2 BG |
1625 | int rc = 0; |
1626 | ||
6702ca1d | 1627 | rtnl_lock(); |
853e2bd2 | 1628 | mutex_lock(&bnx2fc_dev_lock); |
853e2bd2 | 1629 | |
aea71a02 | 1630 | interface = bnx2fc_interface_lookup(netdev); |
fd8f8902 RL |
1631 | ctlr = bnx2fc_to_ctlr(interface); |
1632 | if (!interface || !ctlr->lp) { | |
853e2bd2 | 1633 | rc = -ENODEV; |
aea71a02 | 1634 | printk(KERN_ERR PFX "bnx2fc_destroy: interface or lport not found\n"); |
853e2bd2 BG |
1635 | goto netdev_err; |
1636 | } | |
1637 | ||
2a7b29c5 | 1638 | timer_work_queue = interface->timer_work_queue; |
eccdcd02 | 1639 | __bnx2fc_destroy(interface); |
2a7b29c5 | 1640 | destroy_workqueue(timer_work_queue); |
853e2bd2 | 1641 | |
853e2bd2 BG |
1642 | netdev_err: |
1643 | mutex_unlock(&bnx2fc_dev_lock); | |
1644 | rtnl_unlock(); | |
1645 | return rc; | |
1646 | } | |
1647 | ||
1648 | static void bnx2fc_destroy_work(struct work_struct *work) | |
1649 | { | |
1650 | struct fcoe_port *port; | |
1651 | struct fc_lport *lport; | |
1652 | ||
1653 | port = container_of(work, struct fcoe_port, destroy_work); | |
1654 | lport = port->lport; | |
1655 | ||
1656 | BNX2FC_HBA_DBG(lport, "Entered bnx2fc_destroy_work\n"); | |
1657 | ||
9be17fc4 | 1658 | bnx2fc_if_destroy(lport); |
853e2bd2 BG |
1659 | } |
1660 | ||
1661 | static void bnx2fc_unbind_adapter_devices(struct bnx2fc_hba *hba) | |
1662 | { | |
1663 | bnx2fc_free_fw_resc(hba); | |
1664 | bnx2fc_free_task_ctx(hba); | |
1665 | } | |
1666 | ||
1667 | /** | |
1668 | * bnx2fc_bind_adapter_devices - binds bnx2fc adapter with the associated | |
1669 | * pci structure | |
1670 | * | |
1671 | * @hba: Adapter instance | |
1672 | */ | |
1673 | static int bnx2fc_bind_adapter_devices(struct bnx2fc_hba *hba) | |
1674 | { | |
1675 | if (bnx2fc_setup_task_ctx(hba)) | |
1676 | goto mem_err; | |
1677 | ||
1678 | if (bnx2fc_setup_fw_resc(hba)) | |
1679 | goto mem_err; | |
1680 | ||
1681 | return 0; | |
1682 | mem_err: | |
1683 | bnx2fc_unbind_adapter_devices(hba); | |
1684 | return -ENOMEM; | |
1685 | } | |
1686 | ||
1687 | static int bnx2fc_bind_pcidev(struct bnx2fc_hba *hba) | |
1688 | { | |
1689 | struct cnic_dev *cnic; | |
1690 | ||
1691 | if (!hba->cnic) { | |
1692 | printk(KERN_ERR PFX "cnic is NULL\n"); | |
1693 | return -ENODEV; | |
1694 | } | |
1695 | cnic = hba->cnic; | |
1696 | hba->pcidev = cnic->pcidev; | |
1697 | if (hba->pcidev) | |
1698 | pci_dev_get(hba->pcidev); | |
1699 | ||
1700 | return 0; | |
1701 | } | |
1702 | ||
1703 | static void bnx2fc_unbind_pcidev(struct bnx2fc_hba *hba) | |
1704 | { | |
1705 | if (hba->pcidev) | |
1706 | pci_dev_put(hba->pcidev); | |
1707 | hba->pcidev = NULL; | |
1708 | } | |
1709 | ||
2e499d3c BW |
1710 | /** |
1711 | * bnx2fc_ulp_get_stats - cnic callback to populate FCoE stats | |
1712 | * | |
1713 | * @handle: transport handle pointing to adapter struture | |
1714 | */ | |
1715 | static int bnx2fc_ulp_get_stats(void *handle) | |
1716 | { | |
1717 | struct bnx2fc_hba *hba = handle; | |
1718 | struct cnic_dev *cnic; | |
1719 | struct fcoe_stats_info *stats_addr; | |
1720 | ||
1721 | if (!hba) | |
1722 | return -EINVAL; | |
1723 | ||
1724 | cnic = hba->cnic; | |
1725 | stats_addr = &cnic->stats_addr->fcoe_stat; | |
1726 | if (!stats_addr) | |
1727 | return -EINVAL; | |
1728 | ||
1729 | strncpy(stats_addr->version, BNX2FC_VERSION, | |
1730 | sizeof(stats_addr->version)); | |
1731 | stats_addr->txq_size = BNX2FC_SQ_WQES_MAX; | |
1732 | stats_addr->rxq_size = BNX2FC_CQ_WQES_MAX; | |
1733 | ||
1734 | return 0; | |
1735 | } | |
853e2bd2 BG |
1736 | |
1737 | ||
1738 | /** | |
1739 | * bnx2fc_ulp_start - cnic callback to initialize & start adapter instance | |
1740 | * | |
1741 | * @handle: transport handle pointing to adapter struture | |
1742 | * | |
1743 | * This function maps adapter structure to pcidev structure and initiates | |
1744 | * firmware handshake to enable/initialize on-chip FCoE components. | |
1745 | * This bnx2fc - cnic interface api callback is used after following | |
1746 | * conditions are met - | |
1747 | * a) underlying network interface is up (marked by event NETDEV_UP | |
1748 | * from netdev | |
1749 | * b) bnx2fc adatper structure is registered. | |
1750 | */ | |
1751 | static void bnx2fc_ulp_start(void *handle) | |
1752 | { | |
1753 | struct bnx2fc_hba *hba = handle; | |
aea71a02 | 1754 | struct bnx2fc_interface *interface; |
fd8f8902 | 1755 | struct fcoe_ctlr *ctlr; |
aea71a02 | 1756 | struct fc_lport *lport; |
853e2bd2 | 1757 | |
853e2bd2 BG |
1758 | mutex_lock(&bnx2fc_dev_lock); |
1759 | ||
aea71a02 | 1760 | if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags)) |
853e2bd2 BG |
1761 | bnx2fc_fw_init(hba); |
1762 | ||
853e2bd2 BG |
1763 | BNX2FC_MISC_DBG("bnx2fc started.\n"); |
1764 | ||
aea71a02 BPG |
1765 | list_for_each_entry(interface, &if_list, list) { |
1766 | if (interface->hba == hba) { | |
fd8f8902 RL |
1767 | ctlr = bnx2fc_to_ctlr(interface); |
1768 | lport = ctlr->lp; | |
aea71a02 BPG |
1769 | /* Kick off Fabric discovery*/ |
1770 | printk(KERN_ERR PFX "ulp_init: start discovery\n"); | |
1771 | lport->tt.frame_send = bnx2fc_xmit; | |
1772 | bnx2fc_start_disc(interface); | |
1773 | } | |
853e2bd2 | 1774 | } |
aea71a02 BPG |
1775 | |
1776 | mutex_unlock(&bnx2fc_dev_lock); | |
853e2bd2 BG |
1777 | } |
1778 | ||
1779 | static void bnx2fc_port_shutdown(struct fc_lport *lport) | |
1780 | { | |
1781 | BNX2FC_MISC_DBG("Entered %s\n", __func__); | |
1782 | fc_fabric_logoff(lport); | |
1783 | fc_lport_destroy(lport); | |
1784 | } | |
1785 | ||
aea71a02 | 1786 | static void bnx2fc_stop(struct bnx2fc_interface *interface) |
853e2bd2 | 1787 | { |
fd8f8902 | 1788 | struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface); |
853e2bd2 BG |
1789 | struct fc_lport *lport; |
1790 | struct fc_lport *vport; | |
1791 | ||
aea71a02 BPG |
1792 | if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &interface->hba->flags)) |
1793 | return; | |
853e2bd2 | 1794 | |
fd8f8902 | 1795 | lport = ctlr->lp; |
aea71a02 BPG |
1796 | bnx2fc_port_shutdown(lport); |
1797 | ||
1798 | mutex_lock(&lport->lp_mutex); | |
1799 | list_for_each_entry(vport, &lport->vports, list) | |
1800 | fc_host_port_type(vport->host) = | |
1801 | FC_PORTTYPE_UNKNOWN; | |
1802 | mutex_unlock(&lport->lp_mutex); | |
1803 | fc_host_port_type(lport->host) = FC_PORTTYPE_UNKNOWN; | |
fd8f8902 | 1804 | fcoe_ctlr_link_down(ctlr); |
aea71a02 | 1805 | fcoe_clean_pending_queue(lport); |
853e2bd2 BG |
1806 | } |
1807 | ||
1808 | static int bnx2fc_fw_init(struct bnx2fc_hba *hba) | |
1809 | { | |
1810 | #define BNX2FC_INIT_POLL_TIME (1000 / HZ) | |
1811 | int rc = -1; | |
1812 | int i = HZ; | |
1813 | ||
1814 | rc = bnx2fc_bind_adapter_devices(hba); | |
1815 | if (rc) { | |
1816 | printk(KERN_ALERT PFX | |
1817 | "bnx2fc_bind_adapter_devices failed - rc = %d\n", rc); | |
1818 | goto err_out; | |
1819 | } | |
1820 | ||
1821 | rc = bnx2fc_send_fw_fcoe_init_msg(hba); | |
1822 | if (rc) { | |
1823 | printk(KERN_ALERT PFX | |
1824 | "bnx2fc_send_fw_fcoe_init_msg failed - rc = %d\n", rc); | |
1825 | goto err_unbind; | |
1826 | } | |
1827 | ||
1828 | /* | |
1829 | * Wait until the adapter init message is complete, and adapter | |
1830 | * state is UP. | |
1831 | */ | |
1832 | while (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state) && i--) | |
1833 | msleep(BNX2FC_INIT_POLL_TIME); | |
1834 | ||
1835 | if (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state)) { | |
1836 | printk(KERN_ERR PFX "bnx2fc_start: %s failed to initialize. " | |
1837 | "Ignoring...\n", | |
1838 | hba->cnic->netdev->name); | |
1839 | rc = -1; | |
1840 | goto err_unbind; | |
1841 | } | |
1842 | ||
1843 | ||
aea71a02 | 1844 | set_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags); |
853e2bd2 BG |
1845 | return 0; |
1846 | ||
1847 | err_unbind: | |
1848 | bnx2fc_unbind_adapter_devices(hba); | |
1849 | err_out: | |
1850 | return rc; | |
1851 | } | |
1852 | ||
1853 | static void bnx2fc_fw_destroy(struct bnx2fc_hba *hba) | |
1854 | { | |
aea71a02 | 1855 | if (test_and_clear_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags)) { |
853e2bd2 BG |
1856 | if (bnx2fc_send_fw_fcoe_destroy_msg(hba) == 0) { |
1857 | init_timer(&hba->destroy_timer); | |
1858 | hba->destroy_timer.expires = BNX2FC_FW_TIMEOUT + | |
1859 | jiffies; | |
1860 | hba->destroy_timer.function = bnx2fc_destroy_timer; | |
1861 | hba->destroy_timer.data = (unsigned long)hba; | |
1862 | add_timer(&hba->destroy_timer); | |
1863 | wait_event_interruptible(hba->destroy_wait, | |
aea71a02 BPG |
1864 | test_bit(BNX2FC_FLAG_DESTROY_CMPL, |
1865 | &hba->flags)); | |
cd703ae7 | 1866 | clear_bit(BNX2FC_FLAG_DESTROY_CMPL, &hba->flags); |
853e2bd2 BG |
1867 | /* This should never happen */ |
1868 | if (signal_pending(current)) | |
1869 | flush_signals(current); | |
1870 | ||
1871 | del_timer_sync(&hba->destroy_timer); | |
1872 | } | |
1873 | bnx2fc_unbind_adapter_devices(hba); | |
1874 | } | |
1875 | } | |
1876 | ||
1877 | /** | |
1878 | * bnx2fc_ulp_stop - cnic callback to shutdown adapter instance | |
1879 | * | |
1880 | * @handle: transport handle pointing to adapter structure | |
1881 | * | |
1882 | * Driver checks if adapter is already in shutdown mode, if not start | |
1883 | * the shutdown process. | |
1884 | */ | |
1885 | static void bnx2fc_ulp_stop(void *handle) | |
1886 | { | |
aea71a02 BPG |
1887 | struct bnx2fc_hba *hba = handle; |
1888 | struct bnx2fc_interface *interface; | |
853e2bd2 BG |
1889 | |
1890 | printk(KERN_ERR "ULP_STOP\n"); | |
1891 | ||
1892 | mutex_lock(&bnx2fc_dev_lock); | |
aea71a02 BPG |
1893 | if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags)) |
1894 | goto exit; | |
1895 | list_for_each_entry(interface, &if_list, list) { | |
1896 | if (interface->hba == hba) | |
1897 | bnx2fc_stop(interface); | |
1898 | } | |
1899 | BUG_ON(hba->num_ofld_sess != 0); | |
1900 | ||
1901 | mutex_lock(&hba->hba_mutex); | |
1902 | clear_bit(ADAPTER_STATE_UP, &hba->adapter_state); | |
1903 | clear_bit(ADAPTER_STATE_GOING_DOWN, | |
1904 | &hba->adapter_state); | |
1905 | ||
1906 | clear_bit(ADAPTER_STATE_READY, &hba->adapter_state); | |
1907 | mutex_unlock(&hba->hba_mutex); | |
1908 | ||
853e2bd2 | 1909 | bnx2fc_fw_destroy(hba); |
aea71a02 | 1910 | exit: |
853e2bd2 BG |
1911 | mutex_unlock(&bnx2fc_dev_lock); |
1912 | } | |
1913 | ||
aea71a02 | 1914 | static void bnx2fc_start_disc(struct bnx2fc_interface *interface) |
853e2bd2 | 1915 | { |
fd8f8902 | 1916 | struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface); |
853e2bd2 BG |
1917 | struct fc_lport *lport; |
1918 | int wait_cnt = 0; | |
1919 | ||
1920 | BNX2FC_MISC_DBG("Entered %s\n", __func__); | |
1921 | /* Kick off FIP/FLOGI */ | |
aea71a02 | 1922 | if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &interface->hba->flags)) { |
853e2bd2 BG |
1923 | printk(KERN_ERR PFX "Init not done yet\n"); |
1924 | return; | |
1925 | } | |
1926 | ||
fd8f8902 | 1927 | lport = ctlr->lp; |
853e2bd2 BG |
1928 | BNX2FC_HBA_DBG(lport, "calling fc_fabric_login\n"); |
1929 | ||
8a5badf1 | 1930 | if (!bnx2fc_link_ok(lport) && interface->enabled) { |
853e2bd2 | 1931 | BNX2FC_HBA_DBG(lport, "ctlr_link_up\n"); |
fd8f8902 | 1932 | fcoe_ctlr_link_up(ctlr); |
853e2bd2 | 1933 | fc_host_port_type(lport->host) = FC_PORTTYPE_NPORT; |
aea71a02 | 1934 | set_bit(ADAPTER_STATE_READY, &interface->hba->adapter_state); |
853e2bd2 BG |
1935 | } |
1936 | ||
1937 | /* wait for the FCF to be selected before issuing FLOGI */ | |
fd8f8902 | 1938 | while (!ctlr->sel_fcf) { |
853e2bd2 BG |
1939 | msleep(250); |
1940 | /* give up after 3 secs */ | |
1941 | if (++wait_cnt > 12) | |
1942 | break; | |
1943 | } | |
627e628f BPG |
1944 | |
1945 | /* Reset max receive frame size to default */ | |
1946 | if (fc_set_mfs(lport, BNX2FC_MFS)) | |
1947 | return; | |
1948 | ||
853e2bd2 BG |
1949 | fc_lport_init(lport); |
1950 | fc_fabric_login(lport); | |
1951 | } | |
1952 | ||
1953 | ||
1954 | /** | |
1955 | * bnx2fc_ulp_init - Initialize an adapter instance | |
1956 | * | |
1957 | * @dev : cnic device handle | |
1958 | * Called from cnic_register_driver() context to initialize all | |
1959 | * enumerated cnic devices. This routine allocates adapter structure | |
1960 | * and other device specific resources. | |
1961 | */ | |
1962 | static void bnx2fc_ulp_init(struct cnic_dev *dev) | |
1963 | { | |
1964 | struct bnx2fc_hba *hba; | |
1965 | int rc = 0; | |
1966 | ||
1967 | BNX2FC_MISC_DBG("Entered %s\n", __func__); | |
1968 | /* bnx2fc works only when bnx2x is loaded */ | |
aea71a02 BPG |
1969 | if (!test_bit(CNIC_F_BNX2X_CLASS, &dev->flags) || |
1970 | (dev->max_fcoe_conn == 0)) { | |
853e2bd2 | 1971 | printk(KERN_ERR PFX "bnx2fc FCoE not supported on %s," |
aea71a02 BPG |
1972 | " flags: %lx fcoe_conn: %d\n", |
1973 | dev->netdev->name, dev->flags, dev->max_fcoe_conn); | |
853e2bd2 BG |
1974 | return; |
1975 | } | |
1976 | ||
aea71a02 | 1977 | hba = bnx2fc_hba_create(dev); |
853e2bd2 BG |
1978 | if (!hba) { |
1979 | printk(KERN_ERR PFX "hba initialization failed\n"); | |
1980 | return; | |
1981 | } | |
1982 | ||
1983 | /* Add HBA to the adapter list */ | |
1984 | mutex_lock(&bnx2fc_dev_lock); | |
aea71a02 | 1985 | list_add_tail(&hba->list, &adapter_list); |
853e2bd2 BG |
1986 | adapter_count++; |
1987 | mutex_unlock(&bnx2fc_dev_lock); | |
1988 | ||
2e499d3c | 1989 | dev->fcoe_cap = &hba->fcoe_cap; |
853e2bd2 BG |
1990 | clear_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic); |
1991 | rc = dev->register_device(dev, CNIC_ULP_FCOE, | |
1992 | (void *) hba); | |
1993 | if (rc) | |
b2a554ff | 1994 | printk(KERN_ERR PFX "register_device failed, rc = %d\n", rc); |
853e2bd2 BG |
1995 | else |
1996 | set_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic); | |
1997 | } | |
1998 | ||
1999 | ||
2000 | static int bnx2fc_disable(struct net_device *netdev) | |
2001 | { | |
aea71a02 | 2002 | struct bnx2fc_interface *interface; |
fd8f8902 | 2003 | struct fcoe_ctlr *ctlr; |
853e2bd2 BG |
2004 | int rc = 0; |
2005 | ||
6702ca1d | 2006 | rtnl_lock(); |
853e2bd2 BG |
2007 | mutex_lock(&bnx2fc_dev_lock); |
2008 | ||
aea71a02 | 2009 | interface = bnx2fc_interface_lookup(netdev); |
fd8f8902 RL |
2010 | ctlr = bnx2fc_to_ctlr(interface); |
2011 | if (!interface || !ctlr->lp) { | |
853e2bd2 | 2012 | rc = -ENODEV; |
aea71a02 | 2013 | printk(KERN_ERR PFX "bnx2fc_disable: interface or lport not found\n"); |
853e2bd2 | 2014 | } else { |
8a5badf1 | 2015 | interface->enabled = false; |
fd8f8902 RL |
2016 | fcoe_ctlr_link_down(ctlr); |
2017 | fcoe_clean_pending_queue(ctlr->lp); | |
853e2bd2 BG |
2018 | } |
2019 | ||
853e2bd2 BG |
2020 | mutex_unlock(&bnx2fc_dev_lock); |
2021 | rtnl_unlock(); | |
2022 | return rc; | |
2023 | } | |
2024 | ||
2025 | ||
2026 | static int bnx2fc_enable(struct net_device *netdev) | |
2027 | { | |
aea71a02 | 2028 | struct bnx2fc_interface *interface; |
fd8f8902 | 2029 | struct fcoe_ctlr *ctlr; |
853e2bd2 BG |
2030 | int rc = 0; |
2031 | ||
6702ca1d | 2032 | rtnl_lock(); |
853e2bd2 BG |
2033 | mutex_lock(&bnx2fc_dev_lock); |
2034 | ||
aea71a02 | 2035 | interface = bnx2fc_interface_lookup(netdev); |
fd8f8902 RL |
2036 | ctlr = bnx2fc_to_ctlr(interface); |
2037 | if (!interface || !ctlr->lp) { | |
853e2bd2 | 2038 | rc = -ENODEV; |
aea71a02 | 2039 | printk(KERN_ERR PFX "bnx2fc_enable: interface or lport not found\n"); |
fd8f8902 RL |
2040 | } else if (!bnx2fc_link_ok(ctlr->lp)) { |
2041 | fcoe_ctlr_link_up(ctlr); | |
8a5badf1 BPG |
2042 | interface->enabled = true; |
2043 | } | |
853e2bd2 | 2044 | |
853e2bd2 BG |
2045 | mutex_unlock(&bnx2fc_dev_lock); |
2046 | rtnl_unlock(); | |
2047 | return rc; | |
2048 | } | |
2049 | ||
2050 | /** | |
2051 | * bnx2fc_create - Create bnx2fc FCoE interface | |
2052 | * | |
2053 | * @buffer: The name of Ethernet interface to create on | |
2054 | * @kp: The associated kernel param | |
2055 | * | |
2056 | * Called from sysfs. | |
2057 | * | |
2058 | * Returns: 0 for success | |
2059 | */ | |
2060 | static int bnx2fc_create(struct net_device *netdev, enum fip_state fip_mode) | |
2061 | { | |
fd8f8902 | 2062 | struct fcoe_ctlr *ctlr; |
aea71a02 | 2063 | struct bnx2fc_interface *interface; |
853e2bd2 | 2064 | struct bnx2fc_hba *hba; |
7adc5a37 | 2065 | struct net_device *phys_dev = netdev; |
853e2bd2 BG |
2066 | struct fc_lport *lport; |
2067 | struct ethtool_drvinfo drvinfo; | |
2068 | int rc = 0; | |
7adc5a37 | 2069 | int vlan_id = 0; |
853e2bd2 BG |
2070 | |
2071 | BNX2FC_MISC_DBG("Entered bnx2fc_create\n"); | |
2072 | if (fip_mode != FIP_MODE_FABRIC) { | |
2073 | printk(KERN_ERR "fip mode not FABRIC\n"); | |
2074 | return -EIO; | |
2075 | } | |
2076 | ||
6702ca1d NS |
2077 | rtnl_lock(); |
2078 | ||
853e2bd2 BG |
2079 | mutex_lock(&bnx2fc_dev_lock); |
2080 | ||
853e2bd2 BG |
2081 | if (!try_module_get(THIS_MODULE)) { |
2082 | rc = -EINVAL; | |
2083 | goto mod_err; | |
2084 | } | |
2085 | ||
2086 | /* obtain physical netdev */ | |
7adc5a37 | 2087 | if (netdev->priv_flags & IFF_802_1Q_VLAN) |
853e2bd2 | 2088 | phys_dev = vlan_dev_real_dev(netdev); |
7adc5a37 | 2089 | |
853e2bd2 BG |
2090 | /* verify if the physical device is a netxtreme2 device */ |
2091 | if (phys_dev->ethtool_ops && phys_dev->ethtool_ops->get_drvinfo) { | |
2092 | memset(&drvinfo, 0, sizeof(drvinfo)); | |
2093 | phys_dev->ethtool_ops->get_drvinfo(phys_dev, &drvinfo); | |
aea71a02 | 2094 | if (strncmp(drvinfo.driver, "bnx2x", strlen("bnx2x"))) { |
853e2bd2 BG |
2095 | printk(KERN_ERR PFX "Not a netxtreme2 device\n"); |
2096 | rc = -EINVAL; | |
2097 | goto netdev_err; | |
2098 | } | |
2099 | } else { | |
2100 | printk(KERN_ERR PFX "unable to obtain drv_info\n"); | |
2101 | rc = -EINVAL; | |
2102 | goto netdev_err; | |
2103 | } | |
2104 | ||
aea71a02 | 2105 | /* obtain interface and initialize rest of the structure */ |
853e2bd2 BG |
2106 | hba = bnx2fc_hba_lookup(phys_dev); |
2107 | if (!hba) { | |
2108 | rc = -ENODEV; | |
2109 | printk(KERN_ERR PFX "bnx2fc_create: hba not found\n"); | |
2110 | goto netdev_err; | |
2111 | } | |
2112 | ||
aea71a02 | 2113 | if (bnx2fc_interface_lookup(netdev)) { |
853e2bd2 BG |
2114 | rc = -EEXIST; |
2115 | goto netdev_err; | |
2116 | } | |
2117 | ||
aea71a02 BPG |
2118 | interface = bnx2fc_interface_create(hba, netdev, fip_mode); |
2119 | if (!interface) { | |
2120 | printk(KERN_ERR PFX "bnx2fc_interface_create failed\n"); | |
853e2bd2 BG |
2121 | goto ifput_err; |
2122 | } | |
2123 | ||
7adc5a37 BPG |
2124 | if (netdev->priv_flags & IFF_802_1Q_VLAN) { |
2125 | vlan_id = vlan_dev_vlan_id(netdev); | |
2126 | interface->vlan_enabled = 1; | |
2127 | } | |
2128 | ||
fd8f8902 | 2129 | ctlr = bnx2fc_to_ctlr(interface); |
aea71a02 | 2130 | interface->vlan_id = vlan_id; |
aea71a02 BPG |
2131 | |
2132 | interface->timer_work_queue = | |
853e2bd2 | 2133 | create_singlethread_workqueue("bnx2fc_timer_wq"); |
aea71a02 | 2134 | if (!interface->timer_work_queue) { |
853e2bd2 BG |
2135 | printk(KERN_ERR PFX "ulp_init could not create timer_wq\n"); |
2136 | rc = -EINVAL; | |
2137 | goto ifput_err; | |
2138 | } | |
2139 | ||
aea71a02 | 2140 | lport = bnx2fc_if_create(interface, &interface->hba->pcidev->dev, 0); |
853e2bd2 BG |
2141 | if (!lport) { |
2142 | printk(KERN_ERR PFX "Failed to create interface (%s)\n", | |
2143 | netdev->name); | |
853e2bd2 BG |
2144 | rc = -EINVAL; |
2145 | goto if_create_err; | |
2146 | } | |
2147 | ||
aea71a02 BPG |
2148 | /* Add interface to if_list */ |
2149 | list_add_tail(&interface->list, &if_list); | |
2150 | ||
853e2bd2 BG |
2151 | lport->boot_time = jiffies; |
2152 | ||
2153 | /* Make this master N_port */ | |
fd8f8902 | 2154 | ctlr->lp = lport; |
853e2bd2 | 2155 | |
8a5badf1 | 2156 | if (!bnx2fc_link_ok(lport)) { |
fd8f8902 | 2157 | fcoe_ctlr_link_up(ctlr); |
8a5badf1 BPG |
2158 | fc_host_port_type(lport->host) = FC_PORTTYPE_NPORT; |
2159 | set_bit(ADAPTER_STATE_READY, &interface->hba->adapter_state); | |
2160 | } | |
2161 | ||
aea71a02 BPG |
2162 | BNX2FC_HBA_DBG(lport, "create: START DISC\n"); |
2163 | bnx2fc_start_disc(interface); | |
8a5badf1 | 2164 | interface->enabled = true; |
853e2bd2 BG |
2165 | /* |
2166 | * Release from kref_init in bnx2fc_interface_setup, on success | |
2167 | * lport should be holding a reference taken in bnx2fc_if_create | |
2168 | */ | |
aea71a02 | 2169 | bnx2fc_interface_put(interface); |
853e2bd2 BG |
2170 | /* put netdev that was held while calling dev_get_by_name */ |
2171 | mutex_unlock(&bnx2fc_dev_lock); | |
2172 | rtnl_unlock(); | |
2173 | return 0; | |
2174 | ||
2175 | if_create_err: | |
aea71a02 | 2176 | destroy_workqueue(interface->timer_work_queue); |
853e2bd2 | 2177 | ifput_err: |
013068fa | 2178 | bnx2fc_net_cleanup(interface); |
aea71a02 | 2179 | bnx2fc_interface_put(interface); |
7d742f65 | 2180 | goto mod_err; |
853e2bd2 BG |
2181 | netdev_err: |
2182 | module_put(THIS_MODULE); | |
2183 | mod_err: | |
2184 | mutex_unlock(&bnx2fc_dev_lock); | |
2185 | rtnl_unlock(); | |
2186 | return rc; | |
2187 | } | |
2188 | ||
2189 | /** | |
aea71a02 | 2190 | * bnx2fc_find_hba_for_cnic - maps cnic instance to bnx2fc hba instance |
853e2bd2 BG |
2191 | * |
2192 | * @cnic: Pointer to cnic device instance | |
2193 | * | |
2194 | **/ | |
2195 | static struct bnx2fc_hba *bnx2fc_find_hba_for_cnic(struct cnic_dev *cnic) | |
2196 | { | |
853e2bd2 BG |
2197 | struct bnx2fc_hba *hba; |
2198 | ||
2199 | /* Called with bnx2fc_dev_lock held */ | |
d71fb3bd | 2200 | list_for_each_entry(hba, &adapter_list, list) { |
853e2bd2 BG |
2201 | if (hba->cnic == cnic) |
2202 | return hba; | |
2203 | } | |
2204 | return NULL; | |
2205 | } | |
2206 | ||
aea71a02 BPG |
2207 | static struct bnx2fc_interface *bnx2fc_interface_lookup(struct net_device |
2208 | *netdev) | |
2209 | { | |
2210 | struct bnx2fc_interface *interface; | |
2211 | ||
2212 | /* Called with bnx2fc_dev_lock held */ | |
2213 | list_for_each_entry(interface, &if_list, list) { | |
2214 | if (interface->netdev == netdev) | |
2215 | return interface; | |
2216 | } | |
2217 | return NULL; | |
2218 | } | |
2219 | ||
2220 | static struct bnx2fc_hba *bnx2fc_hba_lookup(struct net_device | |
2221 | *phys_dev) | |
853e2bd2 | 2222 | { |
853e2bd2 BG |
2223 | struct bnx2fc_hba *hba; |
2224 | ||
2225 | /* Called with bnx2fc_dev_lock held */ | |
aea71a02 | 2226 | list_for_each_entry(hba, &adapter_list, list) { |
853e2bd2 BG |
2227 | if (hba->phys_dev == phys_dev) |
2228 | return hba; | |
2229 | } | |
aea71a02 | 2230 | printk(KERN_ERR PFX "adapter_lookup: hba NULL\n"); |
853e2bd2 BG |
2231 | return NULL; |
2232 | } | |
2233 | ||
2234 | /** | |
2235 | * bnx2fc_ulp_exit - shuts down adapter instance and frees all resources | |
2236 | * | |
2237 | * @dev cnic device handle | |
2238 | */ | |
2239 | static void bnx2fc_ulp_exit(struct cnic_dev *dev) | |
2240 | { | |
2241 | struct bnx2fc_hba *hba; | |
aea71a02 | 2242 | struct bnx2fc_interface *interface, *tmp; |
853e2bd2 BG |
2243 | |
2244 | BNX2FC_MISC_DBG("Entered bnx2fc_ulp_exit\n"); | |
2245 | ||
2246 | if (!test_bit(CNIC_F_BNX2X_CLASS, &dev->flags)) { | |
2247 | printk(KERN_ERR PFX "bnx2fc port check: %s, flags: %lx\n", | |
2248 | dev->netdev->name, dev->flags); | |
2249 | return; | |
2250 | } | |
2251 | ||
2252 | mutex_lock(&bnx2fc_dev_lock); | |
2253 | hba = bnx2fc_find_hba_for_cnic(dev); | |
2254 | if (!hba) { | |
2255 | printk(KERN_ERR PFX "bnx2fc_ulp_exit: hba not found, dev 0%p\n", | |
2256 | dev); | |
2257 | mutex_unlock(&bnx2fc_dev_lock); | |
2258 | return; | |
2259 | } | |
2260 | ||
aea71a02 | 2261 | list_del_init(&hba->list); |
853e2bd2 BG |
2262 | adapter_count--; |
2263 | ||
abc49a93 | 2264 | list_for_each_entry_safe(interface, tmp, &if_list, list) |
853e2bd2 | 2265 | /* destroy not called yet, move to quiesced list */ |
abc49a93 | 2266 | if (interface->hba == hba) |
eccdcd02 | 2267 | __bnx2fc_destroy(interface); |
853e2bd2 BG |
2268 | mutex_unlock(&bnx2fc_dev_lock); |
2269 | ||
2270 | bnx2fc_ulp_stop(hba); | |
2271 | /* unregister cnic device */ | |
2272 | if (test_and_clear_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic)) | |
2273 | hba->cnic->unregister_device(hba->cnic, CNIC_ULP_FCOE); | |
aea71a02 | 2274 | bnx2fc_hba_destroy(hba); |
853e2bd2 BG |
2275 | } |
2276 | ||
2277 | /** | |
2278 | * bnx2fc_fcoe_reset - Resets the fcoe | |
2279 | * | |
2280 | * @shost: shost the reset is from | |
2281 | * | |
2282 | * Returns: always 0 | |
2283 | */ | |
2284 | static int bnx2fc_fcoe_reset(struct Scsi_Host *shost) | |
2285 | { | |
2286 | struct fc_lport *lport = shost_priv(shost); | |
2287 | fc_lport_reset(lport); | |
2288 | return 0; | |
2289 | } | |
2290 | ||
2291 | ||
2292 | static bool bnx2fc_match(struct net_device *netdev) | |
2293 | { | |
7adc5a37 BPG |
2294 | struct net_device *phys_dev = netdev; |
2295 | ||
853e2bd2 | 2296 | mutex_lock(&bnx2fc_dev_lock); |
7adc5a37 BPG |
2297 | if (netdev->priv_flags & IFF_802_1Q_VLAN) |
2298 | phys_dev = vlan_dev_real_dev(netdev); | |
853e2bd2 | 2299 | |
7adc5a37 BPG |
2300 | if (bnx2fc_hba_lookup(phys_dev)) { |
2301 | mutex_unlock(&bnx2fc_dev_lock); | |
2302 | return true; | |
853e2bd2 | 2303 | } |
7adc5a37 | 2304 | |
853e2bd2 BG |
2305 | mutex_unlock(&bnx2fc_dev_lock); |
2306 | return false; | |
2307 | } | |
2308 | ||
2309 | ||
2310 | static struct fcoe_transport bnx2fc_transport = { | |
2311 | .name = {"bnx2fc"}, | |
2312 | .attached = false, | |
2313 | .list = LIST_HEAD_INIT(bnx2fc_transport.list), | |
2314 | .match = bnx2fc_match, | |
2315 | .create = bnx2fc_create, | |
2316 | .destroy = bnx2fc_destroy, | |
2317 | .enable = bnx2fc_enable, | |
2318 | .disable = bnx2fc_disable, | |
2319 | }; | |
2320 | ||
2321 | /** | |
2322 | * bnx2fc_percpu_thread_create - Create a receive thread for an | |
2323 | * online CPU | |
2324 | * | |
2325 | * @cpu: cpu index for the online cpu | |
2326 | */ | |
2327 | static void bnx2fc_percpu_thread_create(unsigned int cpu) | |
2328 | { | |
2329 | struct bnx2fc_percpu_s *p; | |
2330 | struct task_struct *thread; | |
2331 | ||
2332 | p = &per_cpu(bnx2fc_percpu, cpu); | |
2333 | ||
69614270 ED |
2334 | thread = kthread_create_on_node(bnx2fc_percpu_io_thread, |
2335 | (void *)p, cpu_to_node(cpu), | |
2336 | "bnx2fc_thread/%d", cpu); | |
853e2bd2 | 2337 | /* bind thread to the cpu */ |
32248763 | 2338 | if (likely(!IS_ERR(thread))) { |
853e2bd2 BG |
2339 | kthread_bind(thread, cpu); |
2340 | p->iothread = thread; | |
2341 | wake_up_process(thread); | |
2342 | } | |
2343 | } | |
2344 | ||
2345 | static void bnx2fc_percpu_thread_destroy(unsigned int cpu) | |
2346 | { | |
2347 | struct bnx2fc_percpu_s *p; | |
2348 | struct task_struct *thread; | |
2349 | struct bnx2fc_work *work, *tmp; | |
853e2bd2 BG |
2350 | |
2351 | BNX2FC_MISC_DBG("destroying io thread for CPU %d\n", cpu); | |
2352 | ||
2353 | /* Prevent any new work from being queued for this CPU */ | |
2354 | p = &per_cpu(bnx2fc_percpu, cpu); | |
2355 | spin_lock_bh(&p->fp_work_lock); | |
2356 | thread = p->iothread; | |
2357 | p->iothread = NULL; | |
2358 | ||
2359 | ||
2360 | /* Free all work in the list */ | |
32248763 | 2361 | list_for_each_entry_safe(work, tmp, &p->work_list, list) { |
853e2bd2 BG |
2362 | list_del_init(&work->list); |
2363 | bnx2fc_process_cq_compl(work->tgt, work->wqe); | |
2364 | kfree(work); | |
2365 | } | |
2366 | ||
2367 | spin_unlock_bh(&p->fp_work_lock); | |
2368 | ||
2369 | if (thread) | |
2370 | kthread_stop(thread); | |
2371 | } | |
2372 | ||
2373 | /** | |
2374 | * bnx2fc_cpu_callback - Handler for CPU hotplug events | |
2375 | * | |
2376 | * @nfb: The callback data block | |
2377 | * @action: The event triggering the callback | |
2378 | * @hcpu: The index of the CPU that the event is for | |
2379 | * | |
2380 | * This creates or destroys per-CPU data for fcoe | |
2381 | * | |
2382 | * Returns NOTIFY_OK always. | |
2383 | */ | |
2384 | static int bnx2fc_cpu_callback(struct notifier_block *nfb, | |
2385 | unsigned long action, void *hcpu) | |
2386 | { | |
2387 | unsigned cpu = (unsigned long)hcpu; | |
2388 | ||
2389 | switch (action) { | |
2390 | case CPU_ONLINE: | |
2391 | case CPU_ONLINE_FROZEN: | |
2392 | printk(PFX "CPU %x online: Create Rx thread\n", cpu); | |
2393 | bnx2fc_percpu_thread_create(cpu); | |
2394 | break; | |
2395 | case CPU_DEAD: | |
2396 | case CPU_DEAD_FROZEN: | |
2397 | printk(PFX "CPU %x offline: Remove Rx thread\n", cpu); | |
2398 | bnx2fc_percpu_thread_destroy(cpu); | |
2399 | break; | |
2400 | default: | |
2401 | break; | |
2402 | } | |
2403 | return NOTIFY_OK; | |
2404 | } | |
2405 | ||
2406 | /** | |
2407 | * bnx2fc_mod_init - module init entry point | |
2408 | * | |
2409 | * Initialize driver wide global data structures, and register | |
2410 | * with cnic module | |
2411 | **/ | |
2412 | static int __init bnx2fc_mod_init(void) | |
2413 | { | |
2414 | struct fcoe_percpu_s *bg; | |
2415 | struct task_struct *l2_thread; | |
2416 | int rc = 0; | |
2417 | unsigned int cpu = 0; | |
2418 | struct bnx2fc_percpu_s *p; | |
2419 | ||
2420 | printk(KERN_INFO PFX "%s", version); | |
2421 | ||
2422 | /* register as a fcoe transport */ | |
2423 | rc = fcoe_transport_attach(&bnx2fc_transport); | |
2424 | if (rc) { | |
2425 | printk(KERN_ERR "failed to register an fcoe transport, check " | |
2426 | "if libfcoe is loaded\n"); | |
2427 | goto out; | |
2428 | } | |
2429 | ||
2430 | INIT_LIST_HEAD(&adapter_list); | |
aea71a02 | 2431 | INIT_LIST_HEAD(&if_list); |
853e2bd2 BG |
2432 | mutex_init(&bnx2fc_dev_lock); |
2433 | adapter_count = 0; | |
2434 | ||
2435 | /* Attach FC transport template */ | |
2436 | rc = bnx2fc_attach_transport(); | |
2437 | if (rc) | |
2438 | goto detach_ft; | |
2439 | ||
2440 | bnx2fc_wq = alloc_workqueue("bnx2fc", 0, 0); | |
2441 | if (!bnx2fc_wq) { | |
2442 | rc = -ENOMEM; | |
2443 | goto release_bt; | |
2444 | } | |
2445 | ||
2446 | bg = &bnx2fc_global; | |
2447 | skb_queue_head_init(&bg->fcoe_rx_list); | |
2448 | l2_thread = kthread_create(bnx2fc_l2_rcv_thread, | |
2449 | (void *)bg, | |
2450 | "bnx2fc_l2_thread"); | |
2451 | if (IS_ERR(l2_thread)) { | |
2452 | rc = PTR_ERR(l2_thread); | |
2453 | goto free_wq; | |
2454 | } | |
2455 | wake_up_process(l2_thread); | |
2456 | spin_lock_bh(&bg->fcoe_rx_list.lock); | |
2457 | bg->thread = l2_thread; | |
2458 | spin_unlock_bh(&bg->fcoe_rx_list.lock); | |
2459 | ||
2460 | for_each_possible_cpu(cpu) { | |
2461 | p = &per_cpu(bnx2fc_percpu, cpu); | |
2462 | INIT_LIST_HEAD(&p->work_list); | |
2463 | spin_lock_init(&p->fp_work_lock); | |
2464 | } | |
2465 | ||
2466 | for_each_online_cpu(cpu) { | |
2467 | bnx2fc_percpu_thread_create(cpu); | |
2468 | } | |
2469 | ||
2470 | /* Initialize per CPU interrupt thread */ | |
2471 | register_hotcpu_notifier(&bnx2fc_cpu_notifier); | |
2472 | ||
2473 | cnic_register_driver(CNIC_ULP_FCOE, &bnx2fc_cnic_cb); | |
2474 | ||
2475 | return 0; | |
2476 | ||
2477 | free_wq: | |
2478 | destroy_workqueue(bnx2fc_wq); | |
2479 | release_bt: | |
2480 | bnx2fc_release_transport(); | |
2481 | detach_ft: | |
2482 | fcoe_transport_detach(&bnx2fc_transport); | |
2483 | out: | |
2484 | return rc; | |
2485 | } | |
2486 | ||
2487 | static void __exit bnx2fc_mod_exit(void) | |
2488 | { | |
2489 | LIST_HEAD(to_be_deleted); | |
2490 | struct bnx2fc_hba *hba, *next; | |
2491 | struct fcoe_percpu_s *bg; | |
2492 | struct task_struct *l2_thread; | |
2493 | struct sk_buff *skb; | |
2494 | unsigned int cpu = 0; | |
2495 | ||
2496 | /* | |
2497 | * NOTE: Since cnic calls register_driver routine rtnl_lock, | |
2498 | * it will have higher precedence than bnx2fc_dev_lock. | |
2499 | * unregister_device() cannot be called with bnx2fc_dev_lock | |
2500 | * held. | |
2501 | */ | |
2502 | mutex_lock(&bnx2fc_dev_lock); | |
2503 | list_splice(&adapter_list, &to_be_deleted); | |
2504 | INIT_LIST_HEAD(&adapter_list); | |
2505 | adapter_count = 0; | |
2506 | mutex_unlock(&bnx2fc_dev_lock); | |
2507 | ||
2508 | /* Unregister with cnic */ | |
aea71a02 BPG |
2509 | list_for_each_entry_safe(hba, next, &to_be_deleted, list) { |
2510 | list_del_init(&hba->list); | |
2511 | printk(KERN_ERR PFX "MOD_EXIT:destroy hba = 0x%p\n", | |
2512 | hba); | |
853e2bd2 BG |
2513 | bnx2fc_ulp_stop(hba); |
2514 | /* unregister cnic device */ | |
2515 | if (test_and_clear_bit(BNX2FC_CNIC_REGISTERED, | |
2516 | &hba->reg_with_cnic)) | |
aea71a02 BPG |
2517 | hba->cnic->unregister_device(hba->cnic, |
2518 | CNIC_ULP_FCOE); | |
2519 | bnx2fc_hba_destroy(hba); | |
853e2bd2 BG |
2520 | } |
2521 | cnic_unregister_driver(CNIC_ULP_FCOE); | |
2522 | ||
2523 | /* Destroy global thread */ | |
2524 | bg = &bnx2fc_global; | |
2525 | spin_lock_bh(&bg->fcoe_rx_list.lock); | |
2526 | l2_thread = bg->thread; | |
2527 | bg->thread = NULL; | |
2528 | while ((skb = __skb_dequeue(&bg->fcoe_rx_list)) != NULL) | |
2529 | kfree_skb(skb); | |
2530 | ||
2531 | spin_unlock_bh(&bg->fcoe_rx_list.lock); | |
2532 | ||
2533 | if (l2_thread) | |
2534 | kthread_stop(l2_thread); | |
2535 | ||
2536 | unregister_hotcpu_notifier(&bnx2fc_cpu_notifier); | |
2537 | ||
2538 | /* Destroy per cpu threads */ | |
2539 | for_each_online_cpu(cpu) { | |
2540 | bnx2fc_percpu_thread_destroy(cpu); | |
2541 | } | |
2542 | ||
2543 | destroy_workqueue(bnx2fc_wq); | |
2544 | /* | |
2545 | * detach from scsi transport | |
2546 | * must happen after all destroys are done | |
2547 | */ | |
2548 | bnx2fc_release_transport(); | |
2549 | ||
2550 | /* detach from fcoe transport */ | |
2551 | fcoe_transport_detach(&bnx2fc_transport); | |
2552 | } | |
2553 | ||
2554 | module_init(bnx2fc_mod_init); | |
2555 | module_exit(bnx2fc_mod_exit); | |
2556 | ||
8d55e507 RL |
2557 | static struct fcoe_sysfs_function_template bnx2fc_fcoe_sysfs_templ = { |
2558 | .get_fcoe_ctlr_mode = fcoe_ctlr_get_fip_mode, | |
2559 | .get_fcoe_ctlr_link_fail = bnx2fc_ctlr_get_lesb, | |
2560 | .get_fcoe_ctlr_vlink_fail = bnx2fc_ctlr_get_lesb, | |
2561 | .get_fcoe_ctlr_miss_fka = bnx2fc_ctlr_get_lesb, | |
2562 | .get_fcoe_ctlr_symb_err = bnx2fc_ctlr_get_lesb, | |
2563 | .get_fcoe_ctlr_err_block = bnx2fc_ctlr_get_lesb, | |
2564 | .get_fcoe_ctlr_fcs_error = bnx2fc_ctlr_get_lesb, | |
2565 | ||
2566 | .get_fcoe_fcf_selected = fcoe_fcf_get_selected, | |
2567 | .get_fcoe_fcf_vlan_id = bnx2fc_fcf_get_vlan_id, | |
2568 | }; | |
2569 | ||
853e2bd2 BG |
2570 | static struct fc_function_template bnx2fc_transport_function = { |
2571 | .show_host_node_name = 1, | |
2572 | .show_host_port_name = 1, | |
2573 | .show_host_supported_classes = 1, | |
2574 | .show_host_supported_fc4s = 1, | |
2575 | .show_host_active_fc4s = 1, | |
2576 | .show_host_maxframe_size = 1, | |
2577 | ||
2578 | .show_host_port_id = 1, | |
2579 | .show_host_supported_speeds = 1, | |
2580 | .get_host_speed = fc_get_host_speed, | |
2581 | .show_host_speed = 1, | |
2582 | .show_host_port_type = 1, | |
2583 | .get_host_port_state = fc_get_host_port_state, | |
2584 | .show_host_port_state = 1, | |
2585 | .show_host_symbolic_name = 1, | |
2586 | ||
2587 | .dd_fcrport_size = (sizeof(struct fc_rport_libfc_priv) + | |
2588 | sizeof(struct bnx2fc_rport)), | |
2589 | .show_rport_maxframe_size = 1, | |
2590 | .show_rport_supported_classes = 1, | |
2591 | ||
2592 | .show_host_fabric_name = 1, | |
2593 | .show_starget_node_name = 1, | |
2594 | .show_starget_port_name = 1, | |
2595 | .show_starget_port_id = 1, | |
2596 | .set_rport_dev_loss_tmo = fc_set_rport_loss_tmo, | |
2597 | .show_rport_dev_loss_tmo = 1, | |
2598 | .get_fc_host_stats = bnx2fc_get_host_stats, | |
2599 | ||
2600 | .issue_fc_host_lip = bnx2fc_fcoe_reset, | |
2601 | ||
2602 | .terminate_rport_io = fc_rport_terminate_io, | |
2603 | ||
2604 | .vport_create = bnx2fc_vport_create, | |
2605 | .vport_delete = bnx2fc_vport_destroy, | |
2606 | .vport_disable = bnx2fc_vport_disable, | |
e9a5289c | 2607 | .bsg_request = fc_lport_bsg_request, |
853e2bd2 BG |
2608 | }; |
2609 | ||
2610 | static struct fc_function_template bnx2fc_vport_xport_function = { | |
2611 | .show_host_node_name = 1, | |
2612 | .show_host_port_name = 1, | |
2613 | .show_host_supported_classes = 1, | |
2614 | .show_host_supported_fc4s = 1, | |
2615 | .show_host_active_fc4s = 1, | |
2616 | .show_host_maxframe_size = 1, | |
2617 | ||
2618 | .show_host_port_id = 1, | |
2619 | .show_host_supported_speeds = 1, | |
2620 | .get_host_speed = fc_get_host_speed, | |
2621 | .show_host_speed = 1, | |
2622 | .show_host_port_type = 1, | |
2623 | .get_host_port_state = fc_get_host_port_state, | |
2624 | .show_host_port_state = 1, | |
2625 | .show_host_symbolic_name = 1, | |
2626 | ||
2627 | .dd_fcrport_size = (sizeof(struct fc_rport_libfc_priv) + | |
2628 | sizeof(struct bnx2fc_rport)), | |
2629 | .show_rport_maxframe_size = 1, | |
2630 | .show_rport_supported_classes = 1, | |
2631 | ||
2632 | .show_host_fabric_name = 1, | |
2633 | .show_starget_node_name = 1, | |
2634 | .show_starget_port_name = 1, | |
2635 | .show_starget_port_id = 1, | |
2636 | .set_rport_dev_loss_tmo = fc_set_rport_loss_tmo, | |
2637 | .show_rport_dev_loss_tmo = 1, | |
2638 | .get_fc_host_stats = fc_get_host_stats, | |
2639 | .issue_fc_host_lip = bnx2fc_fcoe_reset, | |
2640 | .terminate_rport_io = fc_rport_terminate_io, | |
e9a5289c | 2641 | .bsg_request = fc_lport_bsg_request, |
853e2bd2 BG |
2642 | }; |
2643 | ||
2644 | /** | |
2645 | * scsi_host_template structure used while registering with SCSI-ml | |
2646 | */ | |
2647 | static struct scsi_host_template bnx2fc_shost_template = { | |
2648 | .module = THIS_MODULE, | |
2649 | .name = "Broadcom Offload FCoE Initiator", | |
2650 | .queuecommand = bnx2fc_queuecommand, | |
2651 | .eh_abort_handler = bnx2fc_eh_abort, /* abts */ | |
2652 | .eh_device_reset_handler = bnx2fc_eh_device_reset, /* lun reset */ | |
2653 | .eh_target_reset_handler = bnx2fc_eh_target_reset, /* tgt reset */ | |
2654 | .eh_host_reset_handler = fc_eh_host_reset, | |
2655 | .slave_alloc = fc_slave_alloc, | |
2656 | .change_queue_depth = fc_change_queue_depth, | |
2657 | .change_queue_type = fc_change_queue_type, | |
2658 | .this_id = -1, | |
2659 | .cmd_per_lun = 3, | |
0ea5c275 | 2660 | .can_queue = BNX2FC_CAN_QUEUE, |
853e2bd2 BG |
2661 | .use_clustering = ENABLE_CLUSTERING, |
2662 | .sg_tablesize = BNX2FC_MAX_BDS_PER_CMD, | |
2663 | .max_sectors = 512, | |
2664 | }; | |
2665 | ||
2666 | static struct libfc_function_template bnx2fc_libfc_fcn_templ = { | |
2667 | .frame_send = bnx2fc_xmit, | |
2668 | .elsct_send = bnx2fc_elsct_send, | |
2669 | .fcp_abort_io = bnx2fc_abort_io, | |
2670 | .fcp_cleanup = bnx2fc_cleanup, | |
f72f6979 | 2671 | .get_lesb = bnx2fc_get_lesb, |
853e2bd2 BG |
2672 | .rport_event_callback = bnx2fc_rport_event_handler, |
2673 | }; | |
2674 | ||
2675 | /** | |
2676 | * bnx2fc_cnic_cb - global template of bnx2fc - cnic driver interface | |
2677 | * structure carrying callback function pointers | |
2678 | */ | |
2679 | static struct cnic_ulp_ops bnx2fc_cnic_cb = { | |
2680 | .owner = THIS_MODULE, | |
2681 | .cnic_init = bnx2fc_ulp_init, | |
2682 | .cnic_exit = bnx2fc_ulp_exit, | |
2683 | .cnic_start = bnx2fc_ulp_start, | |
2684 | .cnic_stop = bnx2fc_ulp_stop, | |
2685 | .indicate_kcqes = bnx2fc_indicate_kcqe, | |
2686 | .indicate_netevent = bnx2fc_indicate_netevent, | |
2e499d3c | 2687 | .cnic_get_stats = bnx2fc_ulp_get_stats, |
853e2bd2 | 2688 | }; |