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Commit | Line | Data |
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de909d87 | 1 | /* bnx2fc_fcoe.c: QLogic Linux FCoE offload driver. |
853e2bd2 BG |
2 | * This file contains the code that interacts with libfc, libfcoe, |
3 | * cnic modules to create FCoE instances, send/receive non-offloaded | |
4 | * FIP/FCoE packets, listen to link events etc. | |
5 | * | |
97586090 CD |
6 | * Copyright (c) 2008-2013 Broadcom Corporation |
7 | * Copyright (c) 2014-2015 QLogic Corporation | |
853e2bd2 BG |
8 | * |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License as published by | |
11 | * the Free Software Foundation. | |
12 | * | |
13 | * Written by: Bhanu Prakash Gollapudi (bprakash@broadcom.com) | |
14 | */ | |
15 | ||
16 | #include "bnx2fc.h" | |
17 | ||
18 | static struct list_head adapter_list; | |
aea71a02 | 19 | static struct list_head if_list; |
853e2bd2 BG |
20 | static u32 adapter_count; |
21 | static DEFINE_MUTEX(bnx2fc_dev_lock); | |
22 | DEFINE_PER_CPU(struct bnx2fc_percpu_s, bnx2fc_percpu); | |
23 | ||
24 | #define DRV_MODULE_NAME "bnx2fc" | |
25 | #define DRV_MODULE_VERSION BNX2FC_VERSION | |
edb394b5 | 26 | #define DRV_MODULE_RELDATE "October 15, 2015" |
853e2bd2 BG |
27 | |
28 | ||
6f039790 | 29 | static char version[] = |
de909d87 | 30 | "QLogic FCoE Driver " DRV_MODULE_NAME \ |
853e2bd2 BG |
31 | " v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n"; |
32 | ||
33 | ||
34 | MODULE_AUTHOR("Bhanu Prakash Gollapudi <bprakash@broadcom.com>"); | |
de909d87 | 35 | MODULE_DESCRIPTION("QLogic FCoE Driver"); |
853e2bd2 BG |
36 | MODULE_LICENSE("GPL"); |
37 | MODULE_VERSION(DRV_MODULE_VERSION); | |
38 | ||
39 | #define BNX2FC_MAX_QUEUE_DEPTH 256 | |
40 | #define BNX2FC_MIN_QUEUE_DEPTH 32 | |
41 | #define FCOE_WORD_TO_BYTE 4 | |
42 | ||
43 | static struct scsi_transport_template *bnx2fc_transport_template; | |
44 | static struct scsi_transport_template *bnx2fc_vport_xport_template; | |
45 | ||
46 | struct workqueue_struct *bnx2fc_wq; | |
47 | ||
48 | /* bnx2fc structure needs only one instance of the fcoe_percpu_s structure. | |
49 | * Here the io threads are per cpu but the l2 thread is just one | |
50 | */ | |
51 | struct fcoe_percpu_s bnx2fc_global; | |
52 | DEFINE_SPINLOCK(bnx2fc_global_lock); | |
53 | ||
54 | static struct cnic_ulp_ops bnx2fc_cnic_cb; | |
55 | static struct libfc_function_template bnx2fc_libfc_fcn_templ; | |
56 | static struct scsi_host_template bnx2fc_shost_template; | |
57 | static struct fc_function_template bnx2fc_transport_function; | |
8d55e507 | 58 | static struct fcoe_sysfs_function_template bnx2fc_fcoe_sysfs_templ; |
853e2bd2 | 59 | static struct fc_function_template bnx2fc_vport_xport_function; |
1917d42d | 60 | static int bnx2fc_create(struct net_device *netdev, enum fip_mode fip_mode); |
eccdcd02 | 61 | static void __bnx2fc_destroy(struct bnx2fc_interface *interface); |
853e2bd2 BG |
62 | static int bnx2fc_destroy(struct net_device *net_device); |
63 | static int bnx2fc_enable(struct net_device *netdev); | |
64 | static int bnx2fc_disable(struct net_device *netdev); | |
65 | ||
6e89ea3f RL |
66 | /* fcoe_syfs control interface handlers */ |
67 | static int bnx2fc_ctlr_alloc(struct net_device *netdev); | |
68 | static int bnx2fc_ctlr_enabled(struct fcoe_ctlr_device *cdev); | |
69 | ||
853e2bd2 BG |
70 | static void bnx2fc_recv_frame(struct sk_buff *skb); |
71 | ||
aea71a02 | 72 | static void bnx2fc_start_disc(struct bnx2fc_interface *interface); |
853e2bd2 | 73 | static int bnx2fc_shost_config(struct fc_lport *lport, struct device *dev); |
853e2bd2 | 74 | static int bnx2fc_lport_config(struct fc_lport *lport); |
0eb43b4b | 75 | static int bnx2fc_em_config(struct fc_lport *lport, struct bnx2fc_hba *hba); |
853e2bd2 BG |
76 | static int bnx2fc_bind_adapter_devices(struct bnx2fc_hba *hba); |
77 | static void bnx2fc_unbind_adapter_devices(struct bnx2fc_hba *hba); | |
78 | static int bnx2fc_bind_pcidev(struct bnx2fc_hba *hba); | |
79 | static void bnx2fc_unbind_pcidev(struct bnx2fc_hba *hba); | |
aea71a02 | 80 | static struct fc_lport *bnx2fc_if_create(struct bnx2fc_interface *interface, |
853e2bd2 BG |
81 | struct device *parent, int npiv); |
82 | static void bnx2fc_destroy_work(struct work_struct *work); | |
83 | ||
84 | static struct bnx2fc_hba *bnx2fc_hba_lookup(struct net_device *phys_dev); | |
aea71a02 BPG |
85 | static struct bnx2fc_interface *bnx2fc_interface_lookup(struct net_device |
86 | *phys_dev); | |
abc49a93 | 87 | static inline void bnx2fc_interface_put(struct bnx2fc_interface *interface); |
853e2bd2 BG |
88 | static struct bnx2fc_hba *bnx2fc_find_hba_for_cnic(struct cnic_dev *cnic); |
89 | ||
90 | static int bnx2fc_fw_init(struct bnx2fc_hba *hba); | |
91 | static void bnx2fc_fw_destroy(struct bnx2fc_hba *hba); | |
92 | ||
93 | static void bnx2fc_port_shutdown(struct fc_lport *lport); | |
aea71a02 | 94 | static void bnx2fc_stop(struct bnx2fc_interface *interface); |
853e2bd2 BG |
95 | static int __init bnx2fc_mod_init(void); |
96 | static void __exit bnx2fc_mod_exit(void); | |
97 | ||
98 | unsigned int bnx2fc_debug_level; | |
99 | module_param_named(debug_logging, bnx2fc_debug_level, int, S_IRUGO|S_IWUSR); | |
d4faee08 JC |
100 | MODULE_PARM_DESC(debug_logging, |
101 | "Option to enable extended logging,\n" | |
102 | "\t\tDefault is 0 - no logging.\n" | |
103 | "\t\t0x01 - SCSI cmd error, cleanup.\n" | |
104 | "\t\t0x02 - Session setup, cleanup, etc.\n" | |
105 | "\t\t0x04 - lport events, link, mtu, etc.\n" | |
106 | "\t\t0x08 - ELS logs.\n" | |
107 | "\t\t0x10 - fcoe L2 fame related logs.\n" | |
108 | "\t\t0xff - LOG all messages."); | |
853e2bd2 | 109 | |
10755d3f JC |
110 | uint bnx2fc_devloss_tmo; |
111 | module_param_named(devloss_tmo, bnx2fc_devloss_tmo, uint, S_IRUGO); | |
112 | MODULE_PARM_DESC(devloss_tmo, " Change devloss_tmo for the remote ports " | |
113 | "attached via bnx2fc."); | |
114 | ||
115 | uint bnx2fc_max_luns = BNX2FC_MAX_LUN; | |
116 | module_param_named(max_luns, bnx2fc_max_luns, uint, S_IRUGO); | |
117 | MODULE_PARM_DESC(max_luns, " Change the default max_lun per SCSI host. Default " | |
118 | "0xffff."); | |
119 | ||
120 | uint bnx2fc_queue_depth; | |
121 | module_param_named(queue_depth, bnx2fc_queue_depth, uint, S_IRUGO); | |
122 | MODULE_PARM_DESC(queue_depth, " Change the default queue depth of SCSI devices " | |
123 | "attached via bnx2fc."); | |
124 | ||
3f12f76e CD |
125 | uint bnx2fc_log_fka; |
126 | module_param_named(log_fka, bnx2fc_log_fka, uint, S_IRUGO|S_IWUSR); | |
127 | MODULE_PARM_DESC(log_fka, " Print message to kernel log when fcoe is " | |
128 | "initiating a FIP keep alive when debug logging is enabled."); | |
129 | ||
f72f6979 BPG |
130 | static inline struct net_device *bnx2fc_netdev(const struct fc_lport *lport) |
131 | { | |
132 | return ((struct bnx2fc_interface *) | |
133 | ((struct fcoe_port *)lport_priv(lport))->priv)->netdev; | |
134 | } | |
135 | ||
8d55e507 RL |
136 | static void bnx2fc_fcf_get_vlan_id(struct fcoe_fcf_device *fcf_dev) |
137 | { | |
138 | struct fcoe_ctlr_device *ctlr_dev = | |
139 | fcoe_fcf_dev_to_ctlr_dev(fcf_dev); | |
140 | struct fcoe_ctlr *ctlr = fcoe_ctlr_device_priv(ctlr_dev); | |
141 | struct bnx2fc_interface *fcoe = fcoe_ctlr_priv(ctlr); | |
142 | ||
143 | fcf_dev->vlan_id = fcoe->vlan_id; | |
144 | } | |
145 | ||
853e2bd2 BG |
146 | static void bnx2fc_clean_rx_queue(struct fc_lport *lp) |
147 | { | |
148 | struct fcoe_percpu_s *bg; | |
149 | struct fcoe_rcv_info *fr; | |
150 | struct sk_buff_head *list; | |
151 | struct sk_buff *skb, *next; | |
152 | struct sk_buff *head; | |
153 | ||
154 | bg = &bnx2fc_global; | |
155 | spin_lock_bh(&bg->fcoe_rx_list.lock); | |
156 | list = &bg->fcoe_rx_list; | |
157 | head = list->next; | |
158 | for (skb = head; skb != (struct sk_buff *)list; | |
159 | skb = next) { | |
160 | next = skb->next; | |
161 | fr = fcoe_dev_from_skb(skb); | |
162 | if (fr->fr_dev == lp) { | |
163 | __skb_unlink(skb, list); | |
164 | kfree_skb(skb); | |
165 | } | |
166 | } | |
167 | spin_unlock_bh(&bg->fcoe_rx_list.lock); | |
168 | } | |
169 | ||
170 | int bnx2fc_get_paged_crc_eof(struct sk_buff *skb, int tlen) | |
171 | { | |
172 | int rc; | |
173 | spin_lock(&bnx2fc_global_lock); | |
174 | rc = fcoe_get_paged_crc_eof(skb, tlen, &bnx2fc_global); | |
175 | spin_unlock(&bnx2fc_global_lock); | |
176 | ||
177 | return rc; | |
178 | } | |
179 | ||
180 | static void bnx2fc_abort_io(struct fc_lport *lport) | |
181 | { | |
182 | /* | |
183 | * This function is no-op for bnx2fc, but we do | |
184 | * not want to leave it as NULL either, as libfc | |
185 | * can call the default function which is | |
186 | * fc_fcp_abort_io. | |
187 | */ | |
188 | } | |
189 | ||
190 | static void bnx2fc_cleanup(struct fc_lport *lport) | |
191 | { | |
192 | struct fcoe_port *port = lport_priv(lport); | |
aea71a02 BPG |
193 | struct bnx2fc_interface *interface = port->priv; |
194 | struct bnx2fc_hba *hba = interface->hba; | |
853e2bd2 BG |
195 | struct bnx2fc_rport *tgt; |
196 | int i; | |
197 | ||
198 | BNX2FC_MISC_DBG("Entered %s\n", __func__); | |
199 | mutex_lock(&hba->hba_mutex); | |
200 | spin_lock_bh(&hba->hba_lock); | |
201 | for (i = 0; i < BNX2FC_NUM_MAX_SESS; i++) { | |
202 | tgt = hba->tgt_ofld_list[i]; | |
203 | if (tgt) { | |
204 | /* Cleanup IOs belonging to requested vport */ | |
205 | if (tgt->port == port) { | |
206 | spin_unlock_bh(&hba->hba_lock); | |
207 | BNX2FC_TGT_DBG(tgt, "flush/cleanup\n"); | |
208 | bnx2fc_flush_active_ios(tgt); | |
209 | spin_lock_bh(&hba->hba_lock); | |
210 | } | |
211 | } | |
212 | } | |
213 | spin_unlock_bh(&hba->hba_lock); | |
214 | mutex_unlock(&hba->hba_mutex); | |
215 | } | |
216 | ||
217 | static int bnx2fc_xmit_l2_frame(struct bnx2fc_rport *tgt, | |
218 | struct fc_frame *fp) | |
219 | { | |
220 | struct fc_rport_priv *rdata = tgt->rdata; | |
221 | struct fc_frame_header *fh; | |
222 | int rc = 0; | |
223 | ||
224 | fh = fc_frame_header_get(fp); | |
225 | BNX2FC_TGT_DBG(tgt, "Xmit L2 frame rport = 0x%x, oxid = 0x%x, " | |
226 | "r_ctl = 0x%x\n", rdata->ids.port_id, | |
227 | ntohs(fh->fh_ox_id), fh->fh_r_ctl); | |
228 | if ((fh->fh_type == FC_TYPE_ELS) && | |
229 | (fh->fh_r_ctl == FC_RCTL_ELS_REQ)) { | |
230 | ||
231 | switch (fc_frame_payload_op(fp)) { | |
232 | case ELS_ADISC: | |
233 | rc = bnx2fc_send_adisc(tgt, fp); | |
234 | break; | |
235 | case ELS_LOGO: | |
236 | rc = bnx2fc_send_logo(tgt, fp); | |
237 | break; | |
238 | case ELS_RLS: | |
239 | rc = bnx2fc_send_rls(tgt, fp); | |
240 | break; | |
241 | default: | |
242 | break; | |
243 | } | |
244 | } else if ((fh->fh_type == FC_TYPE_BLS) && | |
245 | (fh->fh_r_ctl == FC_RCTL_BA_ABTS)) | |
246 | BNX2FC_TGT_DBG(tgt, "ABTS frame\n"); | |
247 | else { | |
248 | BNX2FC_TGT_DBG(tgt, "Send L2 frame type 0x%x " | |
249 | "rctl 0x%x thru non-offload path\n", | |
250 | fh->fh_type, fh->fh_r_ctl); | |
251 | return -ENODEV; | |
252 | } | |
253 | if (rc) | |
254 | return -ENOMEM; | |
255 | else | |
256 | return 0; | |
257 | } | |
258 | ||
259 | /** | |
260 | * bnx2fc_xmit - bnx2fc's FCoE frame transmit function | |
261 | * | |
262 | * @lport: the associated local port | |
263 | * @fp: the fc_frame to be transmitted | |
264 | */ | |
265 | static int bnx2fc_xmit(struct fc_lport *lport, struct fc_frame *fp) | |
266 | { | |
267 | struct ethhdr *eh; | |
268 | struct fcoe_crc_eof *cp; | |
269 | struct sk_buff *skb; | |
270 | struct fc_frame_header *fh; | |
aea71a02 | 271 | struct bnx2fc_interface *interface; |
fd8f8902 | 272 | struct fcoe_ctlr *ctlr; |
aea71a02 | 273 | struct bnx2fc_hba *hba; |
853e2bd2 BG |
274 | struct fcoe_port *port; |
275 | struct fcoe_hdr *hp; | |
276 | struct bnx2fc_rport *tgt; | |
1bd49b48 | 277 | struct fc_stats *stats; |
853e2bd2 BG |
278 | u8 sof, eof; |
279 | u32 crc; | |
280 | unsigned int hlen, tlen, elen; | |
281 | int wlen, rc = 0; | |
282 | ||
283 | port = (struct fcoe_port *)lport_priv(lport); | |
aea71a02 | 284 | interface = port->priv; |
fd8f8902 | 285 | ctlr = bnx2fc_to_ctlr(interface); |
aea71a02 | 286 | hba = interface->hba; |
853e2bd2 BG |
287 | |
288 | fh = fc_frame_header_get(fp); | |
289 | ||
290 | skb = fp_skb(fp); | |
291 | if (!lport->link_up) { | |
292 | BNX2FC_HBA_DBG(lport, "bnx2fc_xmit link down\n"); | |
293 | kfree_skb(skb); | |
294 | return 0; | |
295 | } | |
296 | ||
297 | if (unlikely(fh->fh_r_ctl == FC_RCTL_ELS_REQ)) { | |
fd8f8902 | 298 | if (!ctlr->sel_fcf) { |
853e2bd2 BG |
299 | BNX2FC_HBA_DBG(lport, "FCF not selected yet!\n"); |
300 | kfree_skb(skb); | |
301 | return -EINVAL; | |
302 | } | |
fd8f8902 | 303 | if (fcoe_ctlr_els_send(ctlr, lport, skb)) |
853e2bd2 BG |
304 | return 0; |
305 | } | |
306 | ||
307 | sof = fr_sof(fp); | |
308 | eof = fr_eof(fp); | |
309 | ||
310 | /* | |
311 | * Snoop the frame header to check if the frame is for | |
312 | * an offloaded session | |
313 | */ | |
314 | /* | |
315 | * tgt_ofld_list access is synchronized using | |
316 | * both hba mutex and hba lock. Atleast hba mutex or | |
317 | * hba lock needs to be held for read access. | |
318 | */ | |
319 | ||
320 | spin_lock_bh(&hba->hba_lock); | |
321 | tgt = bnx2fc_tgt_lookup(port, ntoh24(fh->fh_d_id)); | |
322 | if (tgt && (test_bit(BNX2FC_FLAG_SESSION_READY, &tgt->flags))) { | |
323 | /* This frame is for offloaded session */ | |
324 | BNX2FC_HBA_DBG(lport, "xmit: Frame is for offloaded session " | |
325 | "port_id = 0x%x\n", ntoh24(fh->fh_d_id)); | |
326 | spin_unlock_bh(&hba->hba_lock); | |
327 | rc = bnx2fc_xmit_l2_frame(tgt, fp); | |
328 | if (rc != -ENODEV) { | |
329 | kfree_skb(skb); | |
330 | return rc; | |
331 | } | |
332 | } else { | |
333 | spin_unlock_bh(&hba->hba_lock); | |
334 | } | |
335 | ||
336 | elen = sizeof(struct ethhdr); | |
337 | hlen = sizeof(struct fcoe_hdr); | |
338 | tlen = sizeof(struct fcoe_crc_eof); | |
339 | wlen = (skb->len - tlen + sizeof(crc)) / FCOE_WORD_TO_BYTE; | |
340 | ||
341 | skb->ip_summed = CHECKSUM_NONE; | |
342 | crc = fcoe_fc_crc(fp); | |
343 | ||
344 | /* copy port crc and eof to the skb buff */ | |
345 | if (skb_is_nonlinear(skb)) { | |
346 | skb_frag_t *frag; | |
347 | if (bnx2fc_get_paged_crc_eof(skb, tlen)) { | |
348 | kfree_skb(skb); | |
349 | return -ENOMEM; | |
350 | } | |
351 | frag = &skb_shinfo(skb)->frags[skb_shinfo(skb)->nr_frags - 1]; | |
77dfce07 | 352 | cp = kmap_atomic(skb_frag_page(frag)) + frag->page_offset; |
853e2bd2 BG |
353 | } else { |
354 | cp = (struct fcoe_crc_eof *)skb_put(skb, tlen); | |
355 | } | |
356 | ||
357 | memset(cp, 0, sizeof(*cp)); | |
358 | cp->fcoe_eof = eof; | |
359 | cp->fcoe_crc32 = cpu_to_le32(~crc); | |
360 | if (skb_is_nonlinear(skb)) { | |
77dfce07 | 361 | kunmap_atomic(cp); |
853e2bd2 BG |
362 | cp = NULL; |
363 | } | |
364 | ||
365 | /* adjust skb network/transport offsets to match mac/fcoe/port */ | |
366 | skb_push(skb, elen + hlen); | |
367 | skb_reset_mac_header(skb); | |
368 | skb_reset_network_header(skb); | |
369 | skb->mac_len = elen; | |
370 | skb->protocol = htons(ETH_P_FCOE); | |
aea71a02 | 371 | skb->dev = interface->netdev; |
853e2bd2 BG |
372 | |
373 | /* fill up mac and fcoe headers */ | |
374 | eh = eth_hdr(skb); | |
375 | eh->h_proto = htons(ETH_P_FCOE); | |
fd8f8902 | 376 | if (ctlr->map_dest) |
853e2bd2 BG |
377 | fc_fcoe_set_mac(eh->h_dest, fh->fh_d_id); |
378 | else | |
379 | /* insert GW address */ | |
fd8f8902 | 380 | memcpy(eh->h_dest, ctlr->dest_addr, ETH_ALEN); |
853e2bd2 | 381 | |
fd8f8902 RL |
382 | if (unlikely(ctlr->flogi_oxid != FC_XID_UNKNOWN)) |
383 | memcpy(eh->h_source, ctlr->ctl_src_addr, ETH_ALEN); | |
853e2bd2 BG |
384 | else |
385 | memcpy(eh->h_source, port->data_src_addr, ETH_ALEN); | |
386 | ||
387 | hp = (struct fcoe_hdr *)(eh + 1); | |
388 | memset(hp, 0, sizeof(*hp)); | |
389 | if (FC_FCOE_VER) | |
390 | FC_FCOE_ENCAPS_VER(hp, FC_FCOE_VER); | |
391 | hp->fcoe_sof = sof; | |
392 | ||
393 | /* fcoe lso, mss is in max_payload which is non-zero for FCP data */ | |
394 | if (lport->seq_offload && fr_max_payload(fp)) { | |
395 | skb_shinfo(skb)->gso_type = SKB_GSO_FCOE; | |
396 | skb_shinfo(skb)->gso_size = fr_max_payload(fp); | |
397 | } else { | |
398 | skb_shinfo(skb)->gso_type = 0; | |
399 | skb_shinfo(skb)->gso_size = 0; | |
400 | } | |
401 | ||
402 | /*update tx stats */ | |
1bd49b48 | 403 | stats = per_cpu_ptr(lport->stats, get_cpu()); |
853e2bd2 BG |
404 | stats->TxFrames++; |
405 | stats->TxWords += wlen; | |
406 | put_cpu(); | |
407 | ||
408 | /* send down to lld */ | |
409 | fr_dev(fp) = lport; | |
410 | if (port->fcoe_pending_queue.qlen) | |
411 | fcoe_check_wait_queue(lport, skb); | |
412 | else if (fcoe_start_io(skb)) | |
413 | fcoe_check_wait_queue(lport, skb); | |
414 | ||
415 | return 0; | |
416 | } | |
417 | ||
418 | /** | |
419 | * bnx2fc_rcv - This is bnx2fc's receive function called by NET_RX_SOFTIRQ | |
420 | * | |
421 | * @skb: the receive socket buffer | |
422 | * @dev: associated net device | |
423 | * @ptype: context | |
424 | * @olddev: last device | |
425 | * | |
426 | * This function receives the packet and builds FC frame and passes it up | |
427 | */ | |
428 | static int bnx2fc_rcv(struct sk_buff *skb, struct net_device *dev, | |
429 | struct packet_type *ptype, struct net_device *olddev) | |
430 | { | |
431 | struct fc_lport *lport; | |
aea71a02 | 432 | struct bnx2fc_interface *interface; |
fd8f8902 | 433 | struct fcoe_ctlr *ctlr; |
853e2bd2 BG |
434 | struct fc_frame_header *fh; |
435 | struct fcoe_rcv_info *fr; | |
436 | struct fcoe_percpu_s *bg; | |
01a4cc4d | 437 | struct sk_buff *tmp_skb; |
853e2bd2 BG |
438 | unsigned short oxid; |
439 | ||
aea71a02 BPG |
440 | interface = container_of(ptype, struct bnx2fc_interface, |
441 | fcoe_packet_type); | |
fd8f8902 RL |
442 | ctlr = bnx2fc_to_ctlr(interface); |
443 | lport = ctlr->lp; | |
853e2bd2 BG |
444 | |
445 | if (unlikely(lport == NULL)) { | |
b2a554ff | 446 | printk(KERN_ERR PFX "bnx2fc_rcv: lport is NULL\n"); |
853e2bd2 BG |
447 | goto err; |
448 | } | |
449 | ||
01a4cc4d ML |
450 | tmp_skb = skb_share_check(skb, GFP_ATOMIC); |
451 | if (!tmp_skb) | |
452 | goto err; | |
453 | ||
454 | skb = tmp_skb; | |
455 | ||
853e2bd2 | 456 | if (unlikely(eth_hdr(skb)->h_proto != htons(ETH_P_FCOE))) { |
b2a554ff | 457 | printk(KERN_ERR PFX "bnx2fc_rcv: Wrong FC type frame\n"); |
853e2bd2 BG |
458 | goto err; |
459 | } | |
460 | ||
461 | /* | |
462 | * Check for minimum frame length, and make sure required FCoE | |
463 | * and FC headers are pulled into the linear data area. | |
464 | */ | |
465 | if (unlikely((skb->len < FCOE_MIN_FRAME) || | |
466 | !pskb_may_pull(skb, FCOE_HEADER_LEN))) | |
467 | goto err; | |
468 | ||
469 | skb_set_transport_header(skb, sizeof(struct fcoe_hdr)); | |
470 | fh = (struct fc_frame_header *) skb_transport_header(skb); | |
471 | ||
472 | oxid = ntohs(fh->fh_ox_id); | |
473 | ||
474 | fr = fcoe_dev_from_skb(skb); | |
475 | fr->fr_dev = lport; | |
853e2bd2 BG |
476 | |
477 | bg = &bnx2fc_global; | |
fc05ab74 | 478 | spin_lock(&bg->fcoe_rx_list.lock); |
853e2bd2 BG |
479 | |
480 | __skb_queue_tail(&bg->fcoe_rx_list, skb); | |
481 | if (bg->fcoe_rx_list.qlen == 1) | |
4b9bc86d | 482 | wake_up_process(bg->kthread); |
853e2bd2 | 483 | |
fc05ab74 | 484 | spin_unlock(&bg->fcoe_rx_list.lock); |
853e2bd2 BG |
485 | |
486 | return 0; | |
487 | err: | |
488 | kfree_skb(skb); | |
489 | return -1; | |
490 | } | |
491 | ||
492 | static int bnx2fc_l2_rcv_thread(void *arg) | |
493 | { | |
494 | struct fcoe_percpu_s *bg = arg; | |
495 | struct sk_buff *skb; | |
496 | ||
8698a745 | 497 | set_user_nice(current, MIN_NICE); |
853e2bd2 BG |
498 | set_current_state(TASK_INTERRUPTIBLE); |
499 | while (!kthread_should_stop()) { | |
500 | schedule(); | |
853e2bd2 BG |
501 | spin_lock_bh(&bg->fcoe_rx_list.lock); |
502 | while ((skb = __skb_dequeue(&bg->fcoe_rx_list)) != NULL) { | |
503 | spin_unlock_bh(&bg->fcoe_rx_list.lock); | |
504 | bnx2fc_recv_frame(skb); | |
505 | spin_lock_bh(&bg->fcoe_rx_list.lock); | |
506 | } | |
fee78712 | 507 | __set_current_state(TASK_INTERRUPTIBLE); |
853e2bd2 | 508 | spin_unlock_bh(&bg->fcoe_rx_list.lock); |
853e2bd2 | 509 | } |
fee78712 | 510 | __set_current_state(TASK_RUNNING); |
853e2bd2 BG |
511 | return 0; |
512 | } | |
513 | ||
514 | ||
515 | static void bnx2fc_recv_frame(struct sk_buff *skb) | |
516 | { | |
517 | u32 fr_len; | |
518 | struct fc_lport *lport; | |
519 | struct fcoe_rcv_info *fr; | |
1bd49b48 | 520 | struct fc_stats *stats; |
853e2bd2 BG |
521 | struct fc_frame_header *fh; |
522 | struct fcoe_crc_eof crc_eof; | |
523 | struct fc_frame *fp; | |
524 | struct fc_lport *vn_port; | |
525 | struct fcoe_port *port; | |
526 | u8 *mac = NULL; | |
527 | u8 *dest_mac = NULL; | |
528 | struct fcoe_hdr *hp; | |
529 | ||
530 | fr = fcoe_dev_from_skb(skb); | |
531 | lport = fr->fr_dev; | |
532 | if (unlikely(lport == NULL)) { | |
b2a554ff | 533 | printk(KERN_ERR PFX "Invalid lport struct\n"); |
853e2bd2 BG |
534 | kfree_skb(skb); |
535 | return; | |
536 | } | |
537 | ||
538 | if (skb_is_nonlinear(skb)) | |
539 | skb_linearize(skb); | |
540 | mac = eth_hdr(skb)->h_source; | |
541 | dest_mac = eth_hdr(skb)->h_dest; | |
542 | ||
543 | /* Pull the header */ | |
544 | hp = (struct fcoe_hdr *) skb_network_header(skb); | |
545 | fh = (struct fc_frame_header *) skb_transport_header(skb); | |
546 | skb_pull(skb, sizeof(struct fcoe_hdr)); | |
547 | fr_len = skb->len - sizeof(struct fcoe_crc_eof); | |
548 | ||
853e2bd2 BG |
549 | fp = (struct fc_frame *)skb; |
550 | fc_frame_init(fp); | |
551 | fr_dev(fp) = lport; | |
552 | fr_sof(fp) = hp->fcoe_sof; | |
553 | if (skb_copy_bits(skb, fr_len, &crc_eof, sizeof(crc_eof))) { | |
853e2bd2 BG |
554 | kfree_skb(skb); |
555 | return; | |
556 | } | |
557 | fr_eof(fp) = crc_eof.fcoe_eof; | |
558 | fr_crc(fp) = crc_eof.fcoe_crc32; | |
559 | if (pskb_trim(skb, fr_len)) { | |
853e2bd2 BG |
560 | kfree_skb(skb); |
561 | return; | |
562 | } | |
563 | ||
564 | fh = fc_frame_header_get(fp); | |
565 | ||
566 | vn_port = fc_vport_id_lookup(lport, ntoh24(fh->fh_d_id)); | |
567 | if (vn_port) { | |
568 | port = lport_priv(vn_port); | |
6942df7f | 569 | if (!ether_addr_equal(port->data_src_addr, dest_mac)) { |
853e2bd2 | 570 | BNX2FC_HBA_DBG(lport, "fpma mismatch\n"); |
853e2bd2 BG |
571 | kfree_skb(skb); |
572 | return; | |
573 | } | |
574 | } | |
575 | if (fh->fh_r_ctl == FC_RCTL_DD_SOL_DATA && | |
576 | fh->fh_type == FC_TYPE_FCP) { | |
577 | /* Drop FCP data. We dont this in L2 path */ | |
853e2bd2 BG |
578 | kfree_skb(skb); |
579 | return; | |
580 | } | |
581 | if (fh->fh_r_ctl == FC_RCTL_ELS_REQ && | |
582 | fh->fh_type == FC_TYPE_ELS) { | |
583 | switch (fc_frame_payload_op(fp)) { | |
584 | case ELS_LOGO: | |
585 | if (ntoh24(fh->fh_s_id) == FC_FID_FLOGI) { | |
586 | /* drop non-FIP LOGO */ | |
853e2bd2 BG |
587 | kfree_skb(skb); |
588 | return; | |
589 | } | |
590 | break; | |
591 | } | |
592 | } | |
3f8744d1 BPG |
593 | |
594 | if (fh->fh_r_ctl == FC_RCTL_BA_ABTS) { | |
595 | /* Drop incoming ABTS */ | |
3f8744d1 BPG |
596 | kfree_skb(skb); |
597 | return; | |
598 | } | |
599 | ||
d576a5e8 NH |
600 | stats = per_cpu_ptr(lport->stats, smp_processor_id()); |
601 | stats->RxFrames++; | |
602 | stats->RxWords += fr_len / FCOE_WORD_TO_BYTE; | |
603 | ||
853e2bd2 BG |
604 | if (le32_to_cpu(fr_crc(fp)) != |
605 | ~crc32(~0, skb->data, fr_len)) { | |
606 | if (stats->InvalidCRCCount < 5) | |
607 | printk(KERN_WARNING PFX "dropping frame with " | |
608 | "CRC error\n"); | |
609 | stats->InvalidCRCCount++; | |
853e2bd2 BG |
610 | kfree_skb(skb); |
611 | return; | |
612 | } | |
853e2bd2 BG |
613 | fc_exch_recv(lport, fp); |
614 | } | |
615 | ||
616 | /** | |
617 | * bnx2fc_percpu_io_thread - thread per cpu for ios | |
618 | * | |
619 | * @arg: ptr to bnx2fc_percpu_info structure | |
620 | */ | |
3f7d67da | 621 | static int bnx2fc_percpu_io_thread(void *arg) |
853e2bd2 BG |
622 | { |
623 | struct bnx2fc_percpu_s *p = arg; | |
624 | struct bnx2fc_work *work, *tmp; | |
625 | LIST_HEAD(work_list); | |
626 | ||
8698a745 | 627 | set_user_nice(current, MIN_NICE); |
853e2bd2 BG |
628 | set_current_state(TASK_INTERRUPTIBLE); |
629 | while (!kthread_should_stop()) { | |
630 | schedule(); | |
853e2bd2 BG |
631 | spin_lock_bh(&p->fp_work_lock); |
632 | while (!list_empty(&p->work_list)) { | |
633 | list_splice_init(&p->work_list, &work_list); | |
634 | spin_unlock_bh(&p->fp_work_lock); | |
635 | ||
636 | list_for_each_entry_safe(work, tmp, &work_list, list) { | |
637 | list_del_init(&work->list); | |
638 | bnx2fc_process_cq_compl(work->tgt, work->wqe); | |
639 | kfree(work); | |
640 | } | |
641 | ||
642 | spin_lock_bh(&p->fp_work_lock); | |
643 | } | |
fee78712 | 644 | __set_current_state(TASK_INTERRUPTIBLE); |
853e2bd2 | 645 | spin_unlock_bh(&p->fp_work_lock); |
853e2bd2 | 646 | } |
fee78712 | 647 | __set_current_state(TASK_RUNNING); |
853e2bd2 BG |
648 | |
649 | return 0; | |
650 | } | |
651 | ||
652 | static struct fc_host_statistics *bnx2fc_get_host_stats(struct Scsi_Host *shost) | |
653 | { | |
654 | struct fc_host_statistics *bnx2fc_stats; | |
655 | struct fc_lport *lport = shost_priv(shost); | |
656 | struct fcoe_port *port = lport_priv(lport); | |
aea71a02 BPG |
657 | struct bnx2fc_interface *interface = port->priv; |
658 | struct bnx2fc_hba *hba = interface->hba; | |
853e2bd2 BG |
659 | struct fcoe_statistics_params *fw_stats; |
660 | int rc = 0; | |
661 | ||
662 | fw_stats = (struct fcoe_statistics_params *)hba->stats_buffer; | |
663 | if (!fw_stats) | |
664 | return NULL; | |
665 | ||
c2dd893a ML |
666 | mutex_lock(&hba->hba_stats_mutex); |
667 | ||
853e2bd2 BG |
668 | bnx2fc_stats = fc_get_host_stats(shost); |
669 | ||
670 | init_completion(&hba->stat_req_done); | |
671 | if (bnx2fc_send_stat_req(hba)) | |
c2dd893a | 672 | goto unlock_stats_mutex; |
853e2bd2 BG |
673 | rc = wait_for_completion_timeout(&hba->stat_req_done, (2 * HZ)); |
674 | if (!rc) { | |
675 | BNX2FC_HBA_DBG(lport, "FW stat req timed out\n"); | |
c2dd893a | 676 | goto unlock_stats_mutex; |
853e2bd2 | 677 | } |
f246fe2a BPG |
678 | BNX2FC_STATS(hba, rx_stat2, fc_crc_cnt); |
679 | bnx2fc_stats->invalid_crc_count += hba->bfw_stats.fc_crc_cnt; | |
680 | BNX2FC_STATS(hba, tx_stat, fcoe_tx_pkt_cnt); | |
681 | bnx2fc_stats->tx_frames += hba->bfw_stats.fcoe_tx_pkt_cnt; | |
682 | BNX2FC_STATS(hba, tx_stat, fcoe_tx_byte_cnt); | |
683 | bnx2fc_stats->tx_words += ((hba->bfw_stats.fcoe_tx_byte_cnt) / 4); | |
684 | BNX2FC_STATS(hba, rx_stat0, fcoe_rx_pkt_cnt); | |
685 | bnx2fc_stats->rx_frames += hba->bfw_stats.fcoe_rx_pkt_cnt; | |
686 | BNX2FC_STATS(hba, rx_stat0, fcoe_rx_byte_cnt); | |
687 | bnx2fc_stats->rx_words += ((hba->bfw_stats.fcoe_rx_byte_cnt) / 4); | |
853e2bd2 BG |
688 | |
689 | bnx2fc_stats->dumped_frames = 0; | |
690 | bnx2fc_stats->lip_count = 0; | |
691 | bnx2fc_stats->nos_count = 0; | |
692 | bnx2fc_stats->loss_of_sync_count = 0; | |
693 | bnx2fc_stats->loss_of_signal_count = 0; | |
694 | bnx2fc_stats->prim_seq_protocol_err_count = 0; | |
695 | ||
f246fe2a BPG |
696 | memcpy(&hba->prev_stats, hba->stats_buffer, |
697 | sizeof(struct fcoe_statistics_params)); | |
c2dd893a ML |
698 | |
699 | unlock_stats_mutex: | |
700 | mutex_unlock(&hba->hba_stats_mutex); | |
853e2bd2 BG |
701 | return bnx2fc_stats; |
702 | } | |
703 | ||
704 | static int bnx2fc_shost_config(struct fc_lport *lport, struct device *dev) | |
705 | { | |
706 | struct fcoe_port *port = lport_priv(lport); | |
aea71a02 | 707 | struct bnx2fc_interface *interface = port->priv; |
c13d2b6d | 708 | struct bnx2fc_hba *hba = interface->hba; |
853e2bd2 BG |
709 | struct Scsi_Host *shost = lport->host; |
710 | int rc = 0; | |
711 | ||
712 | shost->max_cmd_len = BNX2FC_MAX_CMD_LEN; | |
10755d3f | 713 | shost->max_lun = bnx2fc_max_luns; |
853e2bd2 BG |
714 | shost->max_id = BNX2FC_MAX_FCP_TGT; |
715 | shost->max_channel = 0; | |
716 | if (lport->vport) | |
717 | shost->transportt = bnx2fc_vport_xport_template; | |
718 | else | |
719 | shost->transportt = bnx2fc_transport_template; | |
720 | ||
721 | /* Add the new host to SCSI-ml */ | |
722 | rc = scsi_add_host(lport->host, dev); | |
723 | if (rc) { | |
724 | printk(KERN_ERR PFX "Error on scsi_add_host\n"); | |
725 | return rc; | |
726 | } | |
727 | if (!lport->vport) | |
728 | fc_host_max_npiv_vports(lport->host) = USHRT_MAX; | |
c13d2b6d | 729 | snprintf(fc_host_symbolic_name(lport->host), 256, |
17d87c45 | 730 | "%s (QLogic %s) v%s over %s", |
c13d2b6d | 731 | BNX2FC_NAME, hba->chip_num, BNX2FC_VERSION, |
aea71a02 | 732 | interface->netdev->name); |
853e2bd2 BG |
733 | |
734 | return 0; | |
735 | } | |
736 | ||
853e2bd2 BG |
737 | static int bnx2fc_link_ok(struct fc_lport *lport) |
738 | { | |
739 | struct fcoe_port *port = lport_priv(lport); | |
aea71a02 BPG |
740 | struct bnx2fc_interface *interface = port->priv; |
741 | struct bnx2fc_hba *hba = interface->hba; | |
853e2bd2 BG |
742 | struct net_device *dev = hba->phys_dev; |
743 | int rc = 0; | |
744 | ||
745 | if ((dev->flags & IFF_UP) && netif_carrier_ok(dev)) | |
746 | clear_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state); | |
747 | else { | |
748 | set_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state); | |
749 | rc = -1; | |
750 | } | |
751 | return rc; | |
752 | } | |
753 | ||
754 | /** | |
755 | * bnx2fc_get_link_state - get network link state | |
756 | * | |
757 | * @hba: adapter instance pointer | |
758 | * | |
759 | * updates adapter structure flag based on netdev state | |
760 | */ | |
761 | void bnx2fc_get_link_state(struct bnx2fc_hba *hba) | |
762 | { | |
aea71a02 | 763 | if (test_bit(__LINK_STATE_NOCARRIER, &hba->phys_dev->state)) |
853e2bd2 BG |
764 | set_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state); |
765 | else | |
766 | clear_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state); | |
767 | } | |
768 | ||
52439607 | 769 | static int bnx2fc_net_config(struct fc_lport *lport, struct net_device *netdev) |
853e2bd2 BG |
770 | { |
771 | struct bnx2fc_hba *hba; | |
aea71a02 | 772 | struct bnx2fc_interface *interface; |
fd8f8902 | 773 | struct fcoe_ctlr *ctlr; |
853e2bd2 BG |
774 | struct fcoe_port *port; |
775 | u64 wwnn, wwpn; | |
776 | ||
777 | port = lport_priv(lport); | |
aea71a02 | 778 | interface = port->priv; |
fd8f8902 | 779 | ctlr = bnx2fc_to_ctlr(interface); |
aea71a02 | 780 | hba = interface->hba; |
853e2bd2 BG |
781 | |
782 | /* require support for get_pauseparam ethtool op. */ | |
783 | if (!hba->phys_dev->ethtool_ops || | |
784 | !hba->phys_dev->ethtool_ops->get_pauseparam) | |
785 | return -EOPNOTSUPP; | |
786 | ||
1294bfe6 | 787 | if (fc_set_mfs(lport, BNX2FC_MFS)) |
853e2bd2 BG |
788 | return -EINVAL; |
789 | ||
790 | skb_queue_head_init(&port->fcoe_pending_queue); | |
791 | port->fcoe_pending_queue_active = 0; | |
792 | setup_timer(&port->timer, fcoe_queue_timer, (unsigned long) lport); | |
793 | ||
0e0f9cd6 | 794 | fcoe_link_speed_update(lport); |
853e2bd2 BG |
795 | |
796 | if (!lport->vport) { | |
52439607 | 797 | if (fcoe_get_wwn(netdev, &wwnn, NETDEV_FCOE_WWNN)) |
fd8f8902 | 798 | wwnn = fcoe_wwn_from_mac(ctlr->ctl_src_addr, |
52439607 | 799 | 1, 0); |
853e2bd2 BG |
800 | BNX2FC_HBA_DBG(lport, "WWNN = 0x%llx\n", wwnn); |
801 | fc_set_wwnn(lport, wwnn); | |
802 | ||
52439607 | 803 | if (fcoe_get_wwn(netdev, &wwpn, NETDEV_FCOE_WWPN)) |
fd8f8902 | 804 | wwpn = fcoe_wwn_from_mac(ctlr->ctl_src_addr, |
52439607 BPG |
805 | 2, 0); |
806 | ||
853e2bd2 BG |
807 | BNX2FC_HBA_DBG(lport, "WWPN = 0x%llx\n", wwpn); |
808 | fc_set_wwpn(lport, wwpn); | |
809 | } | |
810 | ||
811 | return 0; | |
812 | } | |
813 | ||
814 | static void bnx2fc_destroy_timer(unsigned long data) | |
815 | { | |
816 | struct bnx2fc_hba *hba = (struct bnx2fc_hba *)data; | |
817 | ||
cd703ae7 BPG |
818 | printk(KERN_ERR PFX "ERROR:bnx2fc_destroy_timer - " |
819 | "Destroy compl not received!!\n"); | |
aea71a02 | 820 | set_bit(BNX2FC_FLAG_DESTROY_CMPL, &hba->flags); |
853e2bd2 BG |
821 | wake_up_interruptible(&hba->destroy_wait); |
822 | } | |
823 | ||
824 | /** | |
825 | * bnx2fc_indicate_netevent - Generic netdev event handler | |
826 | * | |
827 | * @context: adapter structure pointer | |
828 | * @event: event type | |
415199f2 | 829 | * @vlan_id: vlan id - associated vlan id with this event |
853e2bd2 BG |
830 | * |
831 | * Handles NETDEV_UP, NETDEV_DOWN, NETDEV_GOING_DOWN,NETDEV_CHANGE and | |
abc49a93 | 832 | * NETDEV_CHANGE_MTU events. Handle NETDEV_UNREGISTER only for vlans. |
853e2bd2 | 833 | */ |
415199f2 MC |
834 | static void bnx2fc_indicate_netevent(void *context, unsigned long event, |
835 | u16 vlan_id) | |
853e2bd2 BG |
836 | { |
837 | struct bnx2fc_hba *hba = (struct bnx2fc_hba *)context; | |
6e89ea3f | 838 | struct fcoe_ctlr_device *cdev; |
aea71a02 | 839 | struct fc_lport *lport; |
853e2bd2 | 840 | struct fc_lport *vport; |
abc49a93 | 841 | struct bnx2fc_interface *interface, *tmp; |
fd8f8902 | 842 | struct fcoe_ctlr *ctlr; |
aea71a02 | 843 | int wait_for_upload = 0; |
853e2bd2 BG |
844 | u32 link_possible = 1; |
845 | ||
abc49a93 | 846 | if (vlan_id != 0 && event != NETDEV_UNREGISTER) |
415199f2 MC |
847 | return; |
848 | ||
853e2bd2 BG |
849 | switch (event) { |
850 | case NETDEV_UP: | |
853e2bd2 BG |
851 | if (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state)) |
852 | printk(KERN_ERR "indicate_netevent: "\ | |
aea71a02 | 853 | "hba is not UP!!\n"); |
853e2bd2 BG |
854 | break; |
855 | ||
856 | case NETDEV_DOWN: | |
853e2bd2 BG |
857 | clear_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state); |
858 | clear_bit(ADAPTER_STATE_UP, &hba->adapter_state); | |
859 | link_possible = 0; | |
860 | break; | |
861 | ||
862 | case NETDEV_GOING_DOWN: | |
853e2bd2 BG |
863 | set_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state); |
864 | link_possible = 0; | |
865 | break; | |
866 | ||
867 | case NETDEV_CHANGE: | |
853e2bd2 BG |
868 | break; |
869 | ||
abc49a93 BPG |
870 | case NETDEV_UNREGISTER: |
871 | if (!vlan_id) | |
872 | return; | |
873 | mutex_lock(&bnx2fc_dev_lock); | |
874 | list_for_each_entry_safe(interface, tmp, &if_list, list) { | |
26b2982f NNS |
875 | if (interface->hba == hba && |
876 | interface->vlan_id == (vlan_id & VLAN_VID_MASK)) | |
877 | __bnx2fc_destroy(interface); | |
abc49a93 BPG |
878 | } |
879 | mutex_unlock(&bnx2fc_dev_lock); | |
06c4f20d EW |
880 | |
881 | /* Ensure ALL destroy work has been completed before return */ | |
882 | flush_workqueue(bnx2fc_wq); | |
abc49a93 BPG |
883 | return; |
884 | ||
853e2bd2 | 885 | default: |
853e2bd2 BG |
886 | return; |
887 | } | |
888 | ||
aea71a02 BPG |
889 | mutex_lock(&bnx2fc_dev_lock); |
890 | list_for_each_entry(interface, &if_list, list) { | |
853e2bd2 | 891 | |
aea71a02 BPG |
892 | if (interface->hba != hba) |
893 | continue; | |
894 | ||
fd8f8902 RL |
895 | ctlr = bnx2fc_to_ctlr(interface); |
896 | lport = ctlr->lp; | |
aea71a02 BPG |
897 | BNX2FC_HBA_DBG(lport, "netevent handler - event=%s %ld\n", |
898 | interface->netdev->name, event); | |
899 | ||
0e0f9cd6 | 900 | fcoe_link_speed_update(lport); |
aea71a02 | 901 | |
6e89ea3f | 902 | cdev = fcoe_ctlr_to_ctlr_dev(ctlr); |
aea71a02 BPG |
903 | |
904 | if (link_possible && !bnx2fc_link_ok(lport)) { | |
6e89ea3f RL |
905 | switch (cdev->enabled) { |
906 | case FCOE_CTLR_DISABLED: | |
907 | pr_info("Link up while interface is disabled.\n"); | |
908 | break; | |
909 | case FCOE_CTLR_ENABLED: | |
910 | case FCOE_CTLR_UNUSED: | |
911 | /* Reset max recv frame size to default */ | |
912 | fc_set_mfs(lport, BNX2FC_MFS); | |
913 | /* | |
914 | * ctlr link up will only be handled during | |
915 | * enable to avoid sending discovery | |
916 | * solicitation on a stale vlan | |
917 | */ | |
918 | if (interface->enabled) | |
919 | fcoe_ctlr_link_up(ctlr); | |
920 | }; | |
fd8f8902 | 921 | } else if (fcoe_ctlr_link_down(ctlr)) { |
6e89ea3f RL |
922 | switch (cdev->enabled) { |
923 | case FCOE_CTLR_DISABLED: | |
924 | pr_info("Link down while interface is disabled.\n"); | |
925 | break; | |
926 | case FCOE_CTLR_ENABLED: | |
927 | case FCOE_CTLR_UNUSED: | |
928 | mutex_lock(&lport->lp_mutex); | |
929 | list_for_each_entry(vport, &lport->vports, list) | |
930 | fc_host_port_type(vport->host) = | |
931 | FC_PORTTYPE_UNKNOWN; | |
932 | mutex_unlock(&lport->lp_mutex); | |
933 | fc_host_port_type(lport->host) = | |
934 | FC_PORTTYPE_UNKNOWN; | |
935 | per_cpu_ptr(lport->stats, | |
936 | get_cpu())->LinkFailureCount++; | |
937 | put_cpu(); | |
938 | fcoe_clean_pending_queue(lport); | |
939 | wait_for_upload = 1; | |
940 | }; | |
aea71a02 BPG |
941 | } |
942 | } | |
943 | mutex_unlock(&bnx2fc_dev_lock); | |
853e2bd2 | 944 | |
aea71a02 BPG |
945 | if (wait_for_upload) { |
946 | clear_bit(ADAPTER_STATE_READY, &hba->adapter_state); | |
947 | init_waitqueue_head(&hba->shutdown_wait); | |
948 | BNX2FC_MISC_DBG("indicate_netevent " | |
949 | "num_ofld_sess = %d\n", | |
950 | hba->num_ofld_sess); | |
951 | hba->wait_for_link_down = 1; | |
952 | wait_event_interruptible(hba->shutdown_wait, | |
953 | (hba->num_ofld_sess == 0)); | |
954 | BNX2FC_MISC_DBG("wakeup - num_ofld_sess = %d\n", | |
853e2bd2 | 955 | hba->num_ofld_sess); |
aea71a02 | 956 | hba->wait_for_link_down = 0; |
853e2bd2 | 957 | |
aea71a02 BPG |
958 | if (signal_pending(current)) |
959 | flush_signals(current); | |
853e2bd2 BG |
960 | } |
961 | } | |
962 | ||
963 | static int bnx2fc_libfc_config(struct fc_lport *lport) | |
964 | { | |
965 | ||
966 | /* Set the function pointers set by bnx2fc driver */ | |
967 | memcpy(&lport->tt, &bnx2fc_libfc_fcn_templ, | |
968 | sizeof(struct libfc_function_template)); | |
969 | fc_elsct_init(lport); | |
970 | fc_exch_init(lport); | |
0807619d RL |
971 | fc_disc_init(lport); |
972 | fc_disc_config(lport, lport); | |
853e2bd2 BG |
973 | return 0; |
974 | } | |
975 | ||
0eb43b4b | 976 | static int bnx2fc_em_config(struct fc_lport *lport, struct bnx2fc_hba *hba) |
853e2bd2 | 977 | { |
0eb43b4b | 978 | int fcoe_min_xid, fcoe_max_xid; |
7d742f65 | 979 | |
0eb43b4b | 980 | fcoe_min_xid = hba->max_xid + 1; |
7d742f65 | 981 | if (nr_cpu_ids <= 2) |
0eb43b4b | 982 | fcoe_max_xid = hba->max_xid + FCOE_XIDS_PER_CPU_OFFSET; |
7d742f65 | 983 | else |
0eb43b4b BPG |
984 | fcoe_max_xid = hba->max_xid + FCOE_MAX_XID_OFFSET; |
985 | if (!fc_exch_mgr_alloc(lport, FC_CLASS_3, fcoe_min_xid, | |
986 | fcoe_max_xid, NULL)) { | |
853e2bd2 BG |
987 | printk(KERN_ERR PFX "em_config:fc_exch_mgr_alloc failed\n"); |
988 | return -ENOMEM; | |
989 | } | |
990 | ||
853e2bd2 BG |
991 | return 0; |
992 | } | |
993 | ||
994 | static int bnx2fc_lport_config(struct fc_lport *lport) | |
995 | { | |
996 | lport->link_up = 0; | |
997 | lport->qfull = 0; | |
44c570b5 BPG |
998 | lport->max_retry_count = BNX2FC_MAX_RETRY_CNT; |
999 | lport->max_rport_retry_count = BNX2FC_MAX_RPORT_RETRY_CNT; | |
853e2bd2 BG |
1000 | lport->e_d_tov = 2 * 1000; |
1001 | lport->r_a_tov = 10 * 1000; | |
1002 | ||
853e2bd2 BG |
1003 | lport->service_params = (FCP_SPPF_INIT_FCN | FCP_SPPF_RD_XRDY_DIS | |
1004 | FCP_SPPF_RETRY | FCP_SPPF_CONF_COMPL); | |
853e2bd2 BG |
1005 | lport->does_npiv = 1; |
1006 | ||
1007 | memset(&lport->rnid_gen, 0, sizeof(struct fc_els_rnid_gen)); | |
1008 | lport->rnid_gen.rnid_atype = BNX2FC_RNID_HBA; | |
1009 | ||
1010 | /* alloc stats structure */ | |
1011 | if (fc_lport_init_stats(lport)) | |
1012 | return -ENOMEM; | |
1013 | ||
1014 | /* Finish fc_lport configuration */ | |
1015 | fc_lport_config(lport); | |
1016 | ||
1017 | return 0; | |
1018 | } | |
1019 | ||
1020 | /** | |
1021 | * bnx2fc_fip_recv - handle a received FIP frame. | |
1022 | * | |
1023 | * @skb: the received skb | |
1024 | * @dev: associated &net_device | |
1025 | * @ptype: the &packet_type structure which was used to register this handler. | |
1026 | * @orig_dev: original receive &net_device, in case @ dev is a bond. | |
1027 | * | |
1028 | * Returns: 0 for success | |
1029 | */ | |
1030 | static int bnx2fc_fip_recv(struct sk_buff *skb, struct net_device *dev, | |
1031 | struct packet_type *ptype, | |
1032 | struct net_device *orig_dev) | |
1033 | { | |
aea71a02 | 1034 | struct bnx2fc_interface *interface; |
fd8f8902 | 1035 | struct fcoe_ctlr *ctlr; |
aea71a02 BPG |
1036 | interface = container_of(ptype, struct bnx2fc_interface, |
1037 | fip_packet_type); | |
fd8f8902 RL |
1038 | ctlr = bnx2fc_to_ctlr(interface); |
1039 | fcoe_ctlr_recv(ctlr, skb); | |
853e2bd2 BG |
1040 | return 0; |
1041 | } | |
1042 | ||
1043 | /** | |
1044 | * bnx2fc_update_src_mac - Update Ethernet MAC filters. | |
1045 | * | |
1046 | * @fip: FCoE controller. | |
1047 | * @old: Unicast MAC address to delete if the MAC is non-zero. | |
1048 | * @new: Unicast MAC address to add. | |
1049 | * | |
1050 | * Remove any previously-set unicast MAC filter. | |
1051 | * Add secondary FCoE MAC address filter for our OUI. | |
1052 | */ | |
1053 | static void bnx2fc_update_src_mac(struct fc_lport *lport, u8 *addr) | |
1054 | { | |
1055 | struct fcoe_port *port = lport_priv(lport); | |
1056 | ||
1057 | memcpy(port->data_src_addr, addr, ETH_ALEN); | |
1058 | } | |
1059 | ||
1060 | /** | |
1061 | * bnx2fc_get_src_mac - return the ethernet source address for an lport | |
1062 | * | |
1063 | * @lport: libfc port | |
1064 | */ | |
1065 | static u8 *bnx2fc_get_src_mac(struct fc_lport *lport) | |
1066 | { | |
1067 | struct fcoe_port *port; | |
1068 | ||
1069 | port = (struct fcoe_port *)lport_priv(lport); | |
1070 | return port->data_src_addr; | |
1071 | } | |
1072 | ||
1073 | /** | |
1074 | * bnx2fc_fip_send - send an Ethernet-encapsulated FIP frame. | |
1075 | * | |
1076 | * @fip: FCoE controller. | |
1077 | * @skb: FIP Packet. | |
1078 | */ | |
1079 | static void bnx2fc_fip_send(struct fcoe_ctlr *fip, struct sk_buff *skb) | |
1080 | { | |
3f12f76e CD |
1081 | struct fip_header *fiph; |
1082 | struct ethhdr *eth_hdr; | |
1083 | u16 op; | |
1084 | u8 sub; | |
1085 | ||
1086 | fiph = (struct fip_header *) ((void *)skb->data + 2 * ETH_ALEN + 2); | |
1087 | eth_hdr = (struct ethhdr *)skb_mac_header(skb); | |
1088 | op = ntohs(fiph->fip_op); | |
1089 | sub = fiph->fip_subcode; | |
1090 | ||
1091 | if (op == FIP_OP_CTRL && sub == FIP_SC_SOL && bnx2fc_log_fka) | |
1092 | BNX2FC_MISC_DBG("Sending FKA from %pM to %pM.\n", | |
1093 | eth_hdr->h_source, eth_hdr->h_dest); | |
1094 | ||
853e2bd2 BG |
1095 | skb->dev = bnx2fc_from_ctlr(fip)->netdev; |
1096 | dev_queue_xmit(skb); | |
1097 | } | |
1098 | ||
1099 | static int bnx2fc_vport_create(struct fc_vport *vport, bool disabled) | |
1100 | { | |
1101 | struct Scsi_Host *shost = vport_to_shost(vport); | |
1102 | struct fc_lport *n_port = shost_priv(shost); | |
1103 | struct fcoe_port *port = lport_priv(n_port); | |
aea71a02 BPG |
1104 | struct bnx2fc_interface *interface = port->priv; |
1105 | struct net_device *netdev = interface->netdev; | |
853e2bd2 | 1106 | struct fc_lport *vn_port; |
861efc54 BPG |
1107 | int rc; |
1108 | char buf[32]; | |
1109 | ||
1110 | rc = fcoe_validate_vport_create(vport); | |
1111 | if (rc) { | |
1112 | fcoe_wwn_to_str(vport->port_name, buf, sizeof(buf)); | |
1113 | printk(KERN_ERR PFX "Failed to create vport, " | |
1114 | "WWPN (0x%s) already exists\n", | |
1115 | buf); | |
1116 | return rc; | |
1117 | } | |
853e2bd2 | 1118 | |
aea71a02 | 1119 | if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &interface->hba->flags)) { |
853e2bd2 | 1120 | printk(KERN_ERR PFX "vn ports cannot be created on" |
aea71a02 | 1121 | "this interface\n"); |
853e2bd2 BG |
1122 | return -EIO; |
1123 | } | |
4bc71cb9 | 1124 | rtnl_lock(); |
853e2bd2 | 1125 | mutex_lock(&bnx2fc_dev_lock); |
aea71a02 | 1126 | vn_port = bnx2fc_if_create(interface, &vport->dev, 1); |
853e2bd2 | 1127 | mutex_unlock(&bnx2fc_dev_lock); |
4bc71cb9 | 1128 | rtnl_unlock(); |
853e2bd2 | 1129 | |
b6829c72 | 1130 | if (!vn_port) { |
853e2bd2 BG |
1131 | printk(KERN_ERR PFX "bnx2fc_vport_create (%s) failed\n", |
1132 | netdev->name); | |
1133 | return -EIO; | |
1134 | } | |
1135 | ||
10755d3f JC |
1136 | if (bnx2fc_devloss_tmo) |
1137 | fc_host_dev_loss_tmo(vn_port->host) = bnx2fc_devloss_tmo; | |
1138 | ||
853e2bd2 BG |
1139 | if (disabled) { |
1140 | fc_vport_set_state(vport, FC_VPORT_DISABLED); | |
1141 | } else { | |
1142 | vn_port->boot_time = jiffies; | |
1143 | fc_lport_init(vn_port); | |
1144 | fc_fabric_login(vn_port); | |
1145 | fc_vport_setlink(vn_port); | |
1146 | } | |
1147 | return 0; | |
1148 | } | |
1149 | ||
abc49a93 BPG |
1150 | static void bnx2fc_free_vport(struct bnx2fc_hba *hba, struct fc_lport *lport) |
1151 | { | |
1152 | struct bnx2fc_lport *blport, *tmp; | |
1153 | ||
1154 | spin_lock_bh(&hba->hba_lock); | |
1155 | list_for_each_entry_safe(blport, tmp, &hba->vports, list) { | |
1156 | if (blport->lport == lport) { | |
1157 | list_del(&blport->list); | |
1158 | kfree(blport); | |
1159 | } | |
1160 | } | |
1161 | spin_unlock_bh(&hba->hba_lock); | |
1162 | } | |
1163 | ||
853e2bd2 BG |
1164 | static int bnx2fc_vport_destroy(struct fc_vport *vport) |
1165 | { | |
1166 | struct Scsi_Host *shost = vport_to_shost(vport); | |
1167 | struct fc_lport *n_port = shost_priv(shost); | |
1168 | struct fc_lport *vn_port = vport->dd_data; | |
1169 | struct fcoe_port *port = lport_priv(vn_port); | |
abc49a93 | 1170 | struct bnx2fc_interface *interface = port->priv; |
cdf54668 BPG |
1171 | struct fc_lport *v_port; |
1172 | bool found = false; | |
853e2bd2 BG |
1173 | |
1174 | mutex_lock(&n_port->lp_mutex); | |
cdf54668 BPG |
1175 | list_for_each_entry(v_port, &n_port->vports, list) |
1176 | if (v_port->vport == vport) { | |
1177 | found = true; | |
1178 | break; | |
1179 | } | |
1180 | ||
1181 | if (!found) { | |
1182 | mutex_unlock(&n_port->lp_mutex); | |
1183 | return -ENOENT; | |
1184 | } | |
853e2bd2 BG |
1185 | list_del(&vn_port->list); |
1186 | mutex_unlock(&n_port->lp_mutex); | |
abc49a93 BPG |
1187 | bnx2fc_free_vport(interface->hba, port->lport); |
1188 | bnx2fc_port_shutdown(port->lport); | |
1189 | bnx2fc_interface_put(interface); | |
853e2bd2 BG |
1190 | queue_work(bnx2fc_wq, &port->destroy_work); |
1191 | return 0; | |
1192 | } | |
1193 | ||
1194 | static int bnx2fc_vport_disable(struct fc_vport *vport, bool disable) | |
1195 | { | |
1196 | struct fc_lport *lport = vport->dd_data; | |
1197 | ||
1198 | if (disable) { | |
1199 | fc_vport_set_state(vport, FC_VPORT_DISABLED); | |
1200 | fc_fabric_logoff(lport); | |
1201 | } else { | |
1202 | lport->boot_time = jiffies; | |
1203 | fc_fabric_login(lport); | |
1204 | fc_vport_setlink(lport); | |
1205 | } | |
1206 | return 0; | |
1207 | } | |
1208 | ||
1209 | ||
776cebca | 1210 | static int bnx2fc_interface_setup(struct bnx2fc_interface *interface) |
853e2bd2 | 1211 | { |
aea71a02 BPG |
1212 | struct net_device *netdev = interface->netdev; |
1213 | struct net_device *physdev = interface->hba->phys_dev; | |
fd8f8902 | 1214 | struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface); |
853e2bd2 BG |
1215 | struct netdev_hw_addr *ha; |
1216 | int sel_san_mac = 0; | |
1217 | ||
853e2bd2 BG |
1218 | /* setup Source MAC Address */ |
1219 | rcu_read_lock(); | |
1220 | for_each_dev_addr(physdev, ha) { | |
1221 | BNX2FC_MISC_DBG("net_config: ha->type = %d, fip_mac = ", | |
1222 | ha->type); | |
1223 | printk(KERN_INFO "%2x:%2x:%2x:%2x:%2x:%2x\n", ha->addr[0], | |
1224 | ha->addr[1], ha->addr[2], ha->addr[3], | |
1225 | ha->addr[4], ha->addr[5]); | |
1226 | ||
1227 | if ((ha->type == NETDEV_HW_ADDR_T_SAN) && | |
1228 | (is_valid_ether_addr(ha->addr))) { | |
fd8f8902 | 1229 | memcpy(ctlr->ctl_src_addr, ha->addr, |
aea71a02 | 1230 | ETH_ALEN); |
853e2bd2 BG |
1231 | sel_san_mac = 1; |
1232 | BNX2FC_MISC_DBG("Found SAN MAC\n"); | |
1233 | } | |
1234 | } | |
1235 | rcu_read_unlock(); | |
1236 | ||
1237 | if (!sel_san_mac) | |
1238 | return -ENODEV; | |
1239 | ||
aea71a02 BPG |
1240 | interface->fip_packet_type.func = bnx2fc_fip_recv; |
1241 | interface->fip_packet_type.type = htons(ETH_P_FIP); | |
1242 | interface->fip_packet_type.dev = netdev; | |
1243 | dev_add_pack(&interface->fip_packet_type); | |
853e2bd2 | 1244 | |
aea71a02 BPG |
1245 | interface->fcoe_packet_type.func = bnx2fc_rcv; |
1246 | interface->fcoe_packet_type.type = __constant_htons(ETH_P_FCOE); | |
1247 | interface->fcoe_packet_type.dev = netdev; | |
1248 | dev_add_pack(&interface->fcoe_packet_type); | |
853e2bd2 BG |
1249 | |
1250 | return 0; | |
1251 | } | |
1252 | ||
1253 | static int bnx2fc_attach_transport(void) | |
1254 | { | |
1255 | bnx2fc_transport_template = | |
1256 | fc_attach_transport(&bnx2fc_transport_function); | |
1257 | ||
1258 | if (bnx2fc_transport_template == NULL) { | |
1259 | printk(KERN_ERR PFX "Failed to attach FC transport\n"); | |
1260 | return -ENODEV; | |
1261 | } | |
1262 | ||
1263 | bnx2fc_vport_xport_template = | |
1264 | fc_attach_transport(&bnx2fc_vport_xport_function); | |
1265 | if (bnx2fc_vport_xport_template == NULL) { | |
1266 | printk(KERN_ERR PFX | |
1267 | "Failed to attach FC transport for vport\n"); | |
1268 | fc_release_transport(bnx2fc_transport_template); | |
1269 | bnx2fc_transport_template = NULL; | |
1270 | return -ENODEV; | |
1271 | } | |
1272 | return 0; | |
1273 | } | |
1274 | static void bnx2fc_release_transport(void) | |
1275 | { | |
1276 | fc_release_transport(bnx2fc_transport_template); | |
1277 | fc_release_transport(bnx2fc_vport_xport_template); | |
1278 | bnx2fc_transport_template = NULL; | |
1279 | bnx2fc_vport_xport_template = NULL; | |
1280 | } | |
1281 | ||
1282 | static void bnx2fc_interface_release(struct kref *kref) | |
1283 | { | |
8d55e507 | 1284 | struct fcoe_ctlr_device *ctlr_dev; |
aea71a02 | 1285 | struct bnx2fc_interface *interface; |
fd8f8902 | 1286 | struct fcoe_ctlr *ctlr; |
853e2bd2 | 1287 | struct net_device *netdev; |
853e2bd2 | 1288 | |
aea71a02 | 1289 | interface = container_of(kref, struct bnx2fc_interface, kref); |
068bdce4 | 1290 | BNX2FC_MISC_DBG("Interface is being released\n"); |
853e2bd2 | 1291 | |
fd8f8902 | 1292 | ctlr = bnx2fc_to_ctlr(interface); |
8d55e507 | 1293 | ctlr_dev = fcoe_ctlr_to_ctlr_dev(ctlr); |
aea71a02 | 1294 | netdev = interface->netdev; |
853e2bd2 BG |
1295 | |
1296 | /* tear-down FIP controller */ | |
aea71a02 | 1297 | if (test_and_clear_bit(BNX2FC_CTLR_INIT_DONE, &interface->if_flags)) |
fd8f8902 | 1298 | fcoe_ctlr_destroy(ctlr); |
aea71a02 | 1299 | |
8d55e507 | 1300 | fcoe_ctlr_device_delete(ctlr_dev); |
853e2bd2 | 1301 | |
853e2bd2 BG |
1302 | dev_put(netdev); |
1303 | module_put(THIS_MODULE); | |
1304 | } | |
1305 | ||
aea71a02 | 1306 | static inline void bnx2fc_interface_get(struct bnx2fc_interface *interface) |
853e2bd2 | 1307 | { |
aea71a02 | 1308 | kref_get(&interface->kref); |
853e2bd2 BG |
1309 | } |
1310 | ||
aea71a02 | 1311 | static inline void bnx2fc_interface_put(struct bnx2fc_interface *interface) |
853e2bd2 | 1312 | { |
aea71a02 | 1313 | kref_put(&interface->kref, bnx2fc_interface_release); |
853e2bd2 | 1314 | } |
aea71a02 | 1315 | static void bnx2fc_hba_destroy(struct bnx2fc_hba *hba) |
853e2bd2 | 1316 | { |
aea71a02 BPG |
1317 | /* Free the command manager */ |
1318 | if (hba->cmd_mgr) { | |
1319 | bnx2fc_cmd_mgr_free(hba->cmd_mgr); | |
1320 | hba->cmd_mgr = NULL; | |
1321 | } | |
1322 | kfree(hba->tgt_ofld_list); | |
853e2bd2 BG |
1323 | bnx2fc_unbind_pcidev(hba); |
1324 | kfree(hba); | |
1325 | } | |
1326 | ||
1327 | /** | |
aea71a02 | 1328 | * bnx2fc_hba_create - create a new bnx2fc hba |
853e2bd2 BG |
1329 | * |
1330 | * @cnic: pointer to cnic device | |
1331 | * | |
aea71a02 BPG |
1332 | * Creates a new FCoE hba on the given device. |
1333 | * | |
853e2bd2 | 1334 | */ |
aea71a02 | 1335 | static struct bnx2fc_hba *bnx2fc_hba_create(struct cnic_dev *cnic) |
853e2bd2 BG |
1336 | { |
1337 | struct bnx2fc_hba *hba; | |
2e499d3c | 1338 | struct fcoe_capabilities *fcoe_cap; |
853e2bd2 BG |
1339 | int rc; |
1340 | ||
1341 | hba = kzalloc(sizeof(*hba), GFP_KERNEL); | |
1342 | if (!hba) { | |
1343 | printk(KERN_ERR PFX "Unable to allocate hba structure\n"); | |
1344 | return NULL; | |
1345 | } | |
1346 | spin_lock_init(&hba->hba_lock); | |
1347 | mutex_init(&hba->hba_mutex); | |
c2dd893a | 1348 | mutex_init(&hba->hba_stats_mutex); |
853e2bd2 BG |
1349 | |
1350 | hba->cnic = cnic; | |
0eb43b4b BPG |
1351 | |
1352 | hba->max_tasks = cnic->max_fcoe_exchanges; | |
1353 | hba->elstm_xids = (hba->max_tasks / 2); | |
1354 | hba->max_outstanding_cmds = hba->elstm_xids; | |
1355 | hba->max_xid = (hba->max_tasks - 1); | |
1356 | ||
853e2bd2 | 1357 | rc = bnx2fc_bind_pcidev(hba); |
aea71a02 BPG |
1358 | if (rc) { |
1359 | printk(KERN_ERR PFX "create_adapter: bind error\n"); | |
853e2bd2 | 1360 | goto bind_err; |
aea71a02 | 1361 | } |
853e2bd2 | 1362 | hba->phys_dev = cnic->netdev; |
aea71a02 BPG |
1363 | hba->next_conn_id = 0; |
1364 | ||
1365 | hba->tgt_ofld_list = | |
1366 | kzalloc(sizeof(struct bnx2fc_rport *) * BNX2FC_NUM_MAX_SESS, | |
1367 | GFP_KERNEL); | |
1368 | if (!hba->tgt_ofld_list) { | |
1369 | printk(KERN_ERR PFX "Unable to allocate tgt offload list\n"); | |
1370 | goto tgtofld_err; | |
1371 | } | |
1372 | ||
1373 | hba->num_ofld_sess = 0; | |
1374 | ||
0eb43b4b | 1375 | hba->cmd_mgr = bnx2fc_cmd_mgr_alloc(hba); |
aea71a02 BPG |
1376 | if (!hba->cmd_mgr) { |
1377 | printk(KERN_ERR PFX "em_config:bnx2fc_cmd_mgr_alloc failed\n"); | |
1378 | goto cmgr_err; | |
1379 | } | |
2e499d3c BW |
1380 | fcoe_cap = &hba->fcoe_cap; |
1381 | ||
1382 | fcoe_cap->capability1 = BNX2FC_TM_MAX_SQES << | |
1383 | FCOE_IOS_PER_CONNECTION_SHIFT; | |
1384 | fcoe_cap->capability1 |= BNX2FC_NUM_MAX_SESS << | |
1385 | FCOE_LOGINS_PER_PORT_SHIFT; | |
0eb43b4b | 1386 | fcoe_cap->capability2 = hba->max_outstanding_cmds << |
2e499d3c BW |
1387 | FCOE_NUMBER_OF_EXCHANGES_SHIFT; |
1388 | fcoe_cap->capability2 |= BNX2FC_MAX_NPIV << | |
1389 | FCOE_NPIV_WWN_PER_PORT_SHIFT; | |
1390 | fcoe_cap->capability3 = BNX2FC_NUM_MAX_SESS << | |
1391 | FCOE_TARGETS_SUPPORTED_SHIFT; | |
0eb43b4b | 1392 | fcoe_cap->capability3 |= hba->max_outstanding_cmds << |
2e499d3c BW |
1393 | FCOE_OUTSTANDING_COMMANDS_SHIFT; |
1394 | fcoe_cap->capability4 = FCOE_CAPABILITY4_STATEFUL; | |
853e2bd2 BG |
1395 | |
1396 | init_waitqueue_head(&hba->shutdown_wait); | |
1397 | init_waitqueue_head(&hba->destroy_wait); | |
aea71a02 | 1398 | INIT_LIST_HEAD(&hba->vports); |
853e2bd2 BG |
1399 | |
1400 | return hba; | |
aea71a02 BPG |
1401 | |
1402 | cmgr_err: | |
1403 | kfree(hba->tgt_ofld_list); | |
1404 | tgtofld_err: | |
1405 | bnx2fc_unbind_pcidev(hba); | |
853e2bd2 | 1406 | bind_err: |
853e2bd2 BG |
1407 | kfree(hba); |
1408 | return NULL; | |
1409 | } | |
1410 | ||
3f7d67da BX |
1411 | static struct bnx2fc_interface * |
1412 | bnx2fc_interface_create(struct bnx2fc_hba *hba, | |
1413 | struct net_device *netdev, | |
1414 | enum fip_state fip_mode) | |
853e2bd2 | 1415 | { |
8d55e507 | 1416 | struct fcoe_ctlr_device *ctlr_dev; |
aea71a02 | 1417 | struct bnx2fc_interface *interface; |
fd8f8902 RL |
1418 | struct fcoe_ctlr *ctlr; |
1419 | int size; | |
853e2bd2 | 1420 | int rc = 0; |
853e2bd2 | 1421 | |
fd8f8902 | 1422 | size = (sizeof(*interface) + sizeof(struct fcoe_ctlr)); |
8d55e507 RL |
1423 | ctlr_dev = fcoe_ctlr_device_add(&netdev->dev, &bnx2fc_fcoe_sysfs_templ, |
1424 | size); | |
1425 | if (!ctlr_dev) { | |
aea71a02 BPG |
1426 | printk(KERN_ERR PFX "Unable to allocate interface structure\n"); |
1427 | return NULL; | |
1428 | } | |
8d55e507 | 1429 | ctlr = fcoe_ctlr_device_priv(ctlr_dev); |
9d34876f | 1430 | ctlr->cdev = ctlr_dev; |
fd8f8902 | 1431 | interface = fcoe_ctlr_priv(ctlr); |
853e2bd2 | 1432 | dev_hold(netdev); |
aea71a02 BPG |
1433 | kref_init(&interface->kref); |
1434 | interface->hba = hba; | |
1435 | interface->netdev = netdev; | |
853e2bd2 BG |
1436 | |
1437 | /* Initialize FIP */ | |
fd8f8902 RL |
1438 | fcoe_ctlr_init(ctlr, fip_mode); |
1439 | ctlr->send = bnx2fc_fip_send; | |
1440 | ctlr->update_mac = bnx2fc_update_src_mac; | |
1441 | ctlr->get_src_addr = bnx2fc_get_src_mac; | |
aea71a02 | 1442 | set_bit(BNX2FC_CTLR_INIT_DONE, &interface->if_flags); |
853e2bd2 | 1443 | |
776cebca | 1444 | rc = bnx2fc_interface_setup(interface); |
aea71a02 BPG |
1445 | if (!rc) |
1446 | return interface; | |
853e2bd2 | 1447 | |
fd8f8902 | 1448 | fcoe_ctlr_destroy(ctlr); |
853e2bd2 | 1449 | dev_put(netdev); |
8d55e507 | 1450 | fcoe_ctlr_device_delete(ctlr_dev); |
aea71a02 | 1451 | return NULL; |
853e2bd2 BG |
1452 | } |
1453 | ||
1454 | /** | |
1455 | * bnx2fc_if_create - Create FCoE instance on a given interface | |
1456 | * | |
aea71a02 | 1457 | * @interface: FCoE interface to create a local port on |
853e2bd2 BG |
1458 | * @parent: Device pointer to be the parent in sysfs for the SCSI host |
1459 | * @npiv: Indicates if the port is vport or not | |
1460 | * | |
1461 | * Creates a fc_lport instance and a Scsi_Host instance and configure them. | |
1462 | * | |
1463 | * Returns: Allocated fc_lport or an error pointer | |
1464 | */ | |
aea71a02 | 1465 | static struct fc_lport *bnx2fc_if_create(struct bnx2fc_interface *interface, |
853e2bd2 BG |
1466 | struct device *parent, int npiv) |
1467 | { | |
fd8f8902 | 1468 | struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface); |
134a4e27 | 1469 | struct fc_lport *lport, *n_port; |
853e2bd2 BG |
1470 | struct fcoe_port *port; |
1471 | struct Scsi_Host *shost; | |
1472 | struct fc_vport *vport = dev_to_vport(parent); | |
d36b3279 | 1473 | struct bnx2fc_lport *blport; |
0eb43b4b | 1474 | struct bnx2fc_hba *hba = interface->hba; |
853e2bd2 BG |
1475 | int rc = 0; |
1476 | ||
d36b3279 BPG |
1477 | blport = kzalloc(sizeof(struct bnx2fc_lport), GFP_KERNEL); |
1478 | if (!blport) { | |
fd8f8902 | 1479 | BNX2FC_HBA_DBG(ctlr->lp, "Unable to alloc blport\n"); |
d36b3279 BPG |
1480 | return NULL; |
1481 | } | |
1482 | ||
853e2bd2 | 1483 | /* Allocate Scsi_Host structure */ |
0eb43b4b | 1484 | bnx2fc_shost_template.can_queue = hba->max_outstanding_cmds; |
134a4e27 VD |
1485 | if (!npiv) |
1486 | lport = libfc_host_alloc(&bnx2fc_shost_template, sizeof(*port)); | |
1487 | else | |
1488 | lport = libfc_vport_create(vport, sizeof(*port)); | |
853e2bd2 BG |
1489 | |
1490 | if (!lport) { | |
1491 | printk(KERN_ERR PFX "could not allocate scsi host structure\n"); | |
d36b3279 | 1492 | goto free_blport; |
853e2bd2 BG |
1493 | } |
1494 | shost = lport->host; | |
1495 | port = lport_priv(lport); | |
1496 | port->lport = lport; | |
aea71a02 | 1497 | port->priv = interface; |
c3d7909b | 1498 | port->get_netdev = bnx2fc_netdev; |
853e2bd2 BG |
1499 | INIT_WORK(&port->destroy_work, bnx2fc_destroy_work); |
1500 | ||
1501 | /* Configure fcoe_port */ | |
1502 | rc = bnx2fc_lport_config(lport); | |
1503 | if (rc) | |
1504 | goto lp_config_err; | |
1505 | ||
1506 | if (npiv) { | |
853e2bd2 BG |
1507 | printk(KERN_ERR PFX "Setting vport names, 0x%llX 0x%llX\n", |
1508 | vport->node_name, vport->port_name); | |
1509 | fc_set_wwnn(lport, vport->node_name); | |
1510 | fc_set_wwpn(lport, vport->port_name); | |
1511 | } | |
1512 | /* Configure netdev and networking properties of the lport */ | |
52439607 | 1513 | rc = bnx2fc_net_config(lport, interface->netdev); |
853e2bd2 BG |
1514 | if (rc) { |
1515 | printk(KERN_ERR PFX "Error on bnx2fc_net_config\n"); | |
1516 | goto lp_config_err; | |
1517 | } | |
1518 | ||
1519 | rc = bnx2fc_shost_config(lport, parent); | |
1520 | if (rc) { | |
1521 | printk(KERN_ERR PFX "Couldnt configure shost for %s\n", | |
aea71a02 | 1522 | interface->netdev->name); |
853e2bd2 BG |
1523 | goto lp_config_err; |
1524 | } | |
1525 | ||
1526 | /* Initialize the libfc library */ | |
1527 | rc = bnx2fc_libfc_config(lport); | |
1528 | if (rc) { | |
1529 | printk(KERN_ERR PFX "Couldnt configure libfc\n"); | |
1530 | goto shost_err; | |
1531 | } | |
1532 | fc_host_port_type(lport->host) = FC_PORTTYPE_UNKNOWN; | |
1533 | ||
10755d3f JC |
1534 | if (bnx2fc_devloss_tmo) |
1535 | fc_host_dev_loss_tmo(shost) = bnx2fc_devloss_tmo; | |
1536 | ||
853e2bd2 | 1537 | /* Allocate exchange manager */ |
134a4e27 | 1538 | if (!npiv) |
0eb43b4b | 1539 | rc = bnx2fc_em_config(lport, hba); |
134a4e27 VD |
1540 | else { |
1541 | shost = vport_to_shost(vport); | |
1542 | n_port = shost_priv(shost); | |
1543 | rc = fc_exch_mgr_list_clone(n_port, lport); | |
1544 | } | |
1545 | ||
1546 | if (rc) { | |
1547 | printk(KERN_ERR PFX "Error on bnx2fc_em_config\n"); | |
1548 | goto shost_err; | |
853e2bd2 BG |
1549 | } |
1550 | ||
aea71a02 | 1551 | bnx2fc_interface_get(interface); |
d36b3279 BPG |
1552 | |
1553 | spin_lock_bh(&hba->hba_lock); | |
1554 | blport->lport = lport; | |
1555 | list_add_tail(&blport->list, &hba->vports); | |
1556 | spin_unlock_bh(&hba->hba_lock); | |
1557 | ||
853e2bd2 BG |
1558 | return lport; |
1559 | ||
1560 | shost_err: | |
1561 | scsi_remove_host(shost); | |
1562 | lp_config_err: | |
1563 | scsi_host_put(lport->host); | |
d36b3279 BPG |
1564 | free_blport: |
1565 | kfree(blport); | |
853e2bd2 BG |
1566 | return NULL; |
1567 | } | |
1568 | ||
013068fa | 1569 | static void bnx2fc_net_cleanup(struct bnx2fc_interface *interface) |
853e2bd2 BG |
1570 | { |
1571 | /* Dont listen for Ethernet packets anymore */ | |
aea71a02 BPG |
1572 | __dev_remove_pack(&interface->fcoe_packet_type); |
1573 | __dev_remove_pack(&interface->fip_packet_type); | |
853e2bd2 BG |
1574 | synchronize_net(); |
1575 | } | |
1576 | ||
776cebca | 1577 | static void bnx2fc_interface_cleanup(struct bnx2fc_interface *interface) |
853e2bd2 | 1578 | { |
fd8f8902 RL |
1579 | struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface); |
1580 | struct fc_lport *lport = ctlr->lp; | |
853e2bd2 | 1581 | struct fcoe_port *port = lport_priv(lport); |
9be17fc4 | 1582 | struct bnx2fc_hba *hba = interface->hba; |
853e2bd2 | 1583 | |
853e2bd2 BG |
1584 | /* Stop the transmit retry timer */ |
1585 | del_timer_sync(&port->timer); | |
1586 | ||
1587 | /* Free existing transmit skbs */ | |
1588 | fcoe_clean_pending_queue(lport); | |
1589 | ||
013068fa | 1590 | bnx2fc_net_cleanup(interface); |
9be17fc4 | 1591 | |
abc49a93 | 1592 | bnx2fc_free_vport(hba, lport); |
9be17fc4 BPG |
1593 | } |
1594 | ||
1595 | static void bnx2fc_if_destroy(struct fc_lport *lport) | |
1596 | { | |
1597 | ||
853e2bd2 BG |
1598 | /* Free queued packets for the receive thread */ |
1599 | bnx2fc_clean_rx_queue(lport); | |
1600 | ||
1601 | /* Detach from scsi-ml */ | |
1602 | fc_remove_host(lport->host); | |
1603 | scsi_remove_host(lport->host); | |
1604 | ||
1605 | /* | |
1606 | * Note that only the physical lport will have the exchange manager. | |
1607 | * for vports, this function is NOP | |
1608 | */ | |
1609 | fc_exch_mgr_free(lport); | |
1610 | ||
1611 | /* Free memory used by statistical counters */ | |
1612 | fc_lport_free_stats(lport); | |
1613 | ||
1614 | /* Release Scsi_Host */ | |
1615 | scsi_host_put(lport->host); | |
1616 | } | |
1617 | ||
eccdcd02 | 1618 | static void __bnx2fc_destroy(struct bnx2fc_interface *interface) |
abc49a93 | 1619 | { |
fd8f8902 RL |
1620 | struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface); |
1621 | struct fc_lport *lport = ctlr->lp; | |
0cbf32e1 | 1622 | struct fcoe_port *port = lport_priv(lport); |
abc49a93 BPG |
1623 | |
1624 | bnx2fc_interface_cleanup(interface); | |
1625 | bnx2fc_stop(interface); | |
abc49a93 | 1626 | list_del(&interface->list); |
abc49a93 | 1627 | bnx2fc_interface_put(interface); |
0cbf32e1 | 1628 | queue_work(bnx2fc_wq, &port->destroy_work); |
abc49a93 BPG |
1629 | } |
1630 | ||
853e2bd2 BG |
1631 | /** |
1632 | * bnx2fc_destroy - Destroy a bnx2fc FCoE interface | |
1633 | * | |
1634 | * @buffer: The name of the Ethernet interface to be destroyed | |
1635 | * @kp: The associated kernel parameter | |
1636 | * | |
1637 | * Called from sysfs. | |
1638 | * | |
1639 | * Returns: 0 for success | |
1640 | */ | |
1641 | static int bnx2fc_destroy(struct net_device *netdev) | |
1642 | { | |
aea71a02 | 1643 | struct bnx2fc_interface *interface = NULL; |
2a7b29c5 | 1644 | struct workqueue_struct *timer_work_queue; |
fd8f8902 | 1645 | struct fcoe_ctlr *ctlr; |
853e2bd2 BG |
1646 | int rc = 0; |
1647 | ||
6702ca1d | 1648 | rtnl_lock(); |
853e2bd2 | 1649 | mutex_lock(&bnx2fc_dev_lock); |
853e2bd2 | 1650 | |
aea71a02 | 1651 | interface = bnx2fc_interface_lookup(netdev); |
fd8f8902 RL |
1652 | ctlr = bnx2fc_to_ctlr(interface); |
1653 | if (!interface || !ctlr->lp) { | |
853e2bd2 | 1654 | rc = -ENODEV; |
aea71a02 | 1655 | printk(KERN_ERR PFX "bnx2fc_destroy: interface or lport not found\n"); |
853e2bd2 BG |
1656 | goto netdev_err; |
1657 | } | |
1658 | ||
2a7b29c5 | 1659 | timer_work_queue = interface->timer_work_queue; |
eccdcd02 | 1660 | __bnx2fc_destroy(interface); |
2a7b29c5 | 1661 | destroy_workqueue(timer_work_queue); |
853e2bd2 | 1662 | |
853e2bd2 BG |
1663 | netdev_err: |
1664 | mutex_unlock(&bnx2fc_dev_lock); | |
1665 | rtnl_unlock(); | |
1666 | return rc; | |
1667 | } | |
1668 | ||
1669 | static void bnx2fc_destroy_work(struct work_struct *work) | |
1670 | { | |
1671 | struct fcoe_port *port; | |
1672 | struct fc_lport *lport; | |
1673 | ||
1674 | port = container_of(work, struct fcoe_port, destroy_work); | |
1675 | lport = port->lport; | |
1676 | ||
1677 | BNX2FC_HBA_DBG(lport, "Entered bnx2fc_destroy_work\n"); | |
1678 | ||
9be17fc4 | 1679 | bnx2fc_if_destroy(lport); |
853e2bd2 BG |
1680 | } |
1681 | ||
1682 | static void bnx2fc_unbind_adapter_devices(struct bnx2fc_hba *hba) | |
1683 | { | |
1684 | bnx2fc_free_fw_resc(hba); | |
1685 | bnx2fc_free_task_ctx(hba); | |
1686 | } | |
1687 | ||
1688 | /** | |
1689 | * bnx2fc_bind_adapter_devices - binds bnx2fc adapter with the associated | |
1690 | * pci structure | |
1691 | * | |
1692 | * @hba: Adapter instance | |
1693 | */ | |
1694 | static int bnx2fc_bind_adapter_devices(struct bnx2fc_hba *hba) | |
1695 | { | |
1696 | if (bnx2fc_setup_task_ctx(hba)) | |
1697 | goto mem_err; | |
1698 | ||
1699 | if (bnx2fc_setup_fw_resc(hba)) | |
1700 | goto mem_err; | |
1701 | ||
1702 | return 0; | |
1703 | mem_err: | |
1704 | bnx2fc_unbind_adapter_devices(hba); | |
1705 | return -ENOMEM; | |
1706 | } | |
1707 | ||
1708 | static int bnx2fc_bind_pcidev(struct bnx2fc_hba *hba) | |
1709 | { | |
1710 | struct cnic_dev *cnic; | |
c13d2b6d | 1711 | struct pci_dev *pdev; |
853e2bd2 BG |
1712 | |
1713 | if (!hba->cnic) { | |
1714 | printk(KERN_ERR PFX "cnic is NULL\n"); | |
1715 | return -ENODEV; | |
1716 | } | |
1717 | cnic = hba->cnic; | |
c13d2b6d BPG |
1718 | pdev = hba->pcidev = cnic->pcidev; |
1719 | if (!hba->pcidev) | |
1720 | return -ENODEV; | |
853e2bd2 | 1721 | |
c13d2b6d BPG |
1722 | switch (pdev->device) { |
1723 | case PCI_DEVICE_ID_NX2_57710: | |
1724 | strncpy(hba->chip_num, "BCM57710", BCM_CHIP_LEN); | |
1725 | break; | |
1726 | case PCI_DEVICE_ID_NX2_57711: | |
1727 | strncpy(hba->chip_num, "BCM57711", BCM_CHIP_LEN); | |
1728 | break; | |
1729 | case PCI_DEVICE_ID_NX2_57712: | |
1730 | case PCI_DEVICE_ID_NX2_57712_MF: | |
1731 | case PCI_DEVICE_ID_NX2_57712_VF: | |
1732 | strncpy(hba->chip_num, "BCM57712", BCM_CHIP_LEN); | |
1733 | break; | |
1734 | case PCI_DEVICE_ID_NX2_57800: | |
1735 | case PCI_DEVICE_ID_NX2_57800_MF: | |
1736 | case PCI_DEVICE_ID_NX2_57800_VF: | |
1737 | strncpy(hba->chip_num, "BCM57800", BCM_CHIP_LEN); | |
1738 | break; | |
1739 | case PCI_DEVICE_ID_NX2_57810: | |
1740 | case PCI_DEVICE_ID_NX2_57810_MF: | |
1741 | case PCI_DEVICE_ID_NX2_57810_VF: | |
1742 | strncpy(hba->chip_num, "BCM57810", BCM_CHIP_LEN); | |
1743 | break; | |
1744 | case PCI_DEVICE_ID_NX2_57840: | |
1745 | case PCI_DEVICE_ID_NX2_57840_MF: | |
1746 | case PCI_DEVICE_ID_NX2_57840_VF: | |
1747 | case PCI_DEVICE_ID_NX2_57840_2_20: | |
1748 | case PCI_DEVICE_ID_NX2_57840_4_10: | |
1749 | strncpy(hba->chip_num, "BCM57840", BCM_CHIP_LEN); | |
1750 | break; | |
1751 | default: | |
1752 | pr_err(PFX "Unknown device id 0x%x\n", pdev->device); | |
1753 | break; | |
1754 | } | |
1755 | pci_dev_get(hba->pcidev); | |
853e2bd2 BG |
1756 | return 0; |
1757 | } | |
1758 | ||
1759 | static void bnx2fc_unbind_pcidev(struct bnx2fc_hba *hba) | |
1760 | { | |
c13d2b6d BPG |
1761 | if (hba->pcidev) { |
1762 | hba->chip_num[0] = '\0'; | |
853e2bd2 | 1763 | pci_dev_put(hba->pcidev); |
c13d2b6d | 1764 | } |
853e2bd2 BG |
1765 | hba->pcidev = NULL; |
1766 | } | |
1767 | ||
2e499d3c BW |
1768 | /** |
1769 | * bnx2fc_ulp_get_stats - cnic callback to populate FCoE stats | |
1770 | * | |
1771 | * @handle: transport handle pointing to adapter struture | |
1772 | */ | |
1773 | static int bnx2fc_ulp_get_stats(void *handle) | |
1774 | { | |
1775 | struct bnx2fc_hba *hba = handle; | |
1776 | struct cnic_dev *cnic; | |
1777 | struct fcoe_stats_info *stats_addr; | |
1778 | ||
1779 | if (!hba) | |
1780 | return -EINVAL; | |
1781 | ||
1782 | cnic = hba->cnic; | |
1783 | stats_addr = &cnic->stats_addr->fcoe_stat; | |
1784 | if (!stats_addr) | |
1785 | return -EINVAL; | |
1786 | ||
1787 | strncpy(stats_addr->version, BNX2FC_VERSION, | |
1788 | sizeof(stats_addr->version)); | |
1789 | stats_addr->txq_size = BNX2FC_SQ_WQES_MAX; | |
1790 | stats_addr->rxq_size = BNX2FC_CQ_WQES_MAX; | |
1791 | ||
1792 | return 0; | |
1793 | } | |
853e2bd2 BG |
1794 | |
1795 | ||
1796 | /** | |
1797 | * bnx2fc_ulp_start - cnic callback to initialize & start adapter instance | |
1798 | * | |
59e13d48 | 1799 | * @handle: transport handle pointing to adapter structure |
853e2bd2 BG |
1800 | * |
1801 | * This function maps adapter structure to pcidev structure and initiates | |
1802 | * firmware handshake to enable/initialize on-chip FCoE components. | |
1803 | * This bnx2fc - cnic interface api callback is used after following | |
1804 | * conditions are met - | |
1805 | * a) underlying network interface is up (marked by event NETDEV_UP | |
1806 | * from netdev | |
1807 | * b) bnx2fc adatper structure is registered. | |
1808 | */ | |
1809 | static void bnx2fc_ulp_start(void *handle) | |
1810 | { | |
1811 | struct bnx2fc_hba *hba = handle; | |
aea71a02 | 1812 | struct bnx2fc_interface *interface; |
fd8f8902 | 1813 | struct fcoe_ctlr *ctlr; |
aea71a02 | 1814 | struct fc_lport *lport; |
853e2bd2 | 1815 | |
853e2bd2 BG |
1816 | mutex_lock(&bnx2fc_dev_lock); |
1817 | ||
aea71a02 | 1818 | if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags)) |
853e2bd2 BG |
1819 | bnx2fc_fw_init(hba); |
1820 | ||
853e2bd2 BG |
1821 | BNX2FC_MISC_DBG("bnx2fc started.\n"); |
1822 | ||
aea71a02 BPG |
1823 | list_for_each_entry(interface, &if_list, list) { |
1824 | if (interface->hba == hba) { | |
fd8f8902 RL |
1825 | ctlr = bnx2fc_to_ctlr(interface); |
1826 | lport = ctlr->lp; | |
aea71a02 BPG |
1827 | /* Kick off Fabric discovery*/ |
1828 | printk(KERN_ERR PFX "ulp_init: start discovery\n"); | |
1829 | lport->tt.frame_send = bnx2fc_xmit; | |
1830 | bnx2fc_start_disc(interface); | |
1831 | } | |
853e2bd2 | 1832 | } |
aea71a02 BPG |
1833 | |
1834 | mutex_unlock(&bnx2fc_dev_lock); | |
853e2bd2 BG |
1835 | } |
1836 | ||
1837 | static void bnx2fc_port_shutdown(struct fc_lport *lport) | |
1838 | { | |
1839 | BNX2FC_MISC_DBG("Entered %s\n", __func__); | |
1840 | fc_fabric_logoff(lport); | |
1841 | fc_lport_destroy(lport); | |
1842 | } | |
1843 | ||
aea71a02 | 1844 | static void bnx2fc_stop(struct bnx2fc_interface *interface) |
853e2bd2 | 1845 | { |
fd8f8902 | 1846 | struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface); |
853e2bd2 BG |
1847 | struct fc_lport *lport; |
1848 | struct fc_lport *vport; | |
1849 | ||
aea71a02 BPG |
1850 | if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &interface->hba->flags)) |
1851 | return; | |
853e2bd2 | 1852 | |
fd8f8902 | 1853 | lport = ctlr->lp; |
aea71a02 BPG |
1854 | bnx2fc_port_shutdown(lport); |
1855 | ||
1856 | mutex_lock(&lport->lp_mutex); | |
1857 | list_for_each_entry(vport, &lport->vports, list) | |
1858 | fc_host_port_type(vport->host) = | |
1859 | FC_PORTTYPE_UNKNOWN; | |
1860 | mutex_unlock(&lport->lp_mutex); | |
1861 | fc_host_port_type(lport->host) = FC_PORTTYPE_UNKNOWN; | |
fd8f8902 | 1862 | fcoe_ctlr_link_down(ctlr); |
aea71a02 | 1863 | fcoe_clean_pending_queue(lport); |
853e2bd2 BG |
1864 | } |
1865 | ||
1866 | static int bnx2fc_fw_init(struct bnx2fc_hba *hba) | |
1867 | { | |
1868 | #define BNX2FC_INIT_POLL_TIME (1000 / HZ) | |
1869 | int rc = -1; | |
1870 | int i = HZ; | |
1871 | ||
1872 | rc = bnx2fc_bind_adapter_devices(hba); | |
1873 | if (rc) { | |
1874 | printk(KERN_ALERT PFX | |
1875 | "bnx2fc_bind_adapter_devices failed - rc = %d\n", rc); | |
1876 | goto err_out; | |
1877 | } | |
1878 | ||
1879 | rc = bnx2fc_send_fw_fcoe_init_msg(hba); | |
1880 | if (rc) { | |
1881 | printk(KERN_ALERT PFX | |
1882 | "bnx2fc_send_fw_fcoe_init_msg failed - rc = %d\n", rc); | |
1883 | goto err_unbind; | |
1884 | } | |
1885 | ||
1886 | /* | |
1887 | * Wait until the adapter init message is complete, and adapter | |
1888 | * state is UP. | |
1889 | */ | |
1890 | while (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state) && i--) | |
1891 | msleep(BNX2FC_INIT_POLL_TIME); | |
1892 | ||
1893 | if (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state)) { | |
1894 | printk(KERN_ERR PFX "bnx2fc_start: %s failed to initialize. " | |
1895 | "Ignoring...\n", | |
1896 | hba->cnic->netdev->name); | |
1897 | rc = -1; | |
1898 | goto err_unbind; | |
1899 | } | |
1900 | ||
1901 | ||
aea71a02 | 1902 | set_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags); |
853e2bd2 BG |
1903 | return 0; |
1904 | ||
1905 | err_unbind: | |
1906 | bnx2fc_unbind_adapter_devices(hba); | |
1907 | err_out: | |
1908 | return rc; | |
1909 | } | |
1910 | ||
1911 | static void bnx2fc_fw_destroy(struct bnx2fc_hba *hba) | |
1912 | { | |
aea71a02 | 1913 | if (test_and_clear_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags)) { |
853e2bd2 BG |
1914 | if (bnx2fc_send_fw_fcoe_destroy_msg(hba) == 0) { |
1915 | init_timer(&hba->destroy_timer); | |
1916 | hba->destroy_timer.expires = BNX2FC_FW_TIMEOUT + | |
1917 | jiffies; | |
1918 | hba->destroy_timer.function = bnx2fc_destroy_timer; | |
1919 | hba->destroy_timer.data = (unsigned long)hba; | |
1920 | add_timer(&hba->destroy_timer); | |
1921 | wait_event_interruptible(hba->destroy_wait, | |
aea71a02 BPG |
1922 | test_bit(BNX2FC_FLAG_DESTROY_CMPL, |
1923 | &hba->flags)); | |
cd703ae7 | 1924 | clear_bit(BNX2FC_FLAG_DESTROY_CMPL, &hba->flags); |
853e2bd2 BG |
1925 | /* This should never happen */ |
1926 | if (signal_pending(current)) | |
1927 | flush_signals(current); | |
1928 | ||
1929 | del_timer_sync(&hba->destroy_timer); | |
1930 | } | |
1931 | bnx2fc_unbind_adapter_devices(hba); | |
1932 | } | |
1933 | } | |
1934 | ||
1935 | /** | |
1936 | * bnx2fc_ulp_stop - cnic callback to shutdown adapter instance | |
1937 | * | |
1938 | * @handle: transport handle pointing to adapter structure | |
1939 | * | |
1940 | * Driver checks if adapter is already in shutdown mode, if not start | |
1941 | * the shutdown process. | |
1942 | */ | |
1943 | static void bnx2fc_ulp_stop(void *handle) | |
1944 | { | |
aea71a02 BPG |
1945 | struct bnx2fc_hba *hba = handle; |
1946 | struct bnx2fc_interface *interface; | |
853e2bd2 BG |
1947 | |
1948 | printk(KERN_ERR "ULP_STOP\n"); | |
1949 | ||
1950 | mutex_lock(&bnx2fc_dev_lock); | |
aea71a02 BPG |
1951 | if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags)) |
1952 | goto exit; | |
1953 | list_for_each_entry(interface, &if_list, list) { | |
1954 | if (interface->hba == hba) | |
1955 | bnx2fc_stop(interface); | |
1956 | } | |
1957 | BUG_ON(hba->num_ofld_sess != 0); | |
1958 | ||
1959 | mutex_lock(&hba->hba_mutex); | |
1960 | clear_bit(ADAPTER_STATE_UP, &hba->adapter_state); | |
1961 | clear_bit(ADAPTER_STATE_GOING_DOWN, | |
1962 | &hba->adapter_state); | |
1963 | ||
1964 | clear_bit(ADAPTER_STATE_READY, &hba->adapter_state); | |
1965 | mutex_unlock(&hba->hba_mutex); | |
1966 | ||
853e2bd2 | 1967 | bnx2fc_fw_destroy(hba); |
aea71a02 | 1968 | exit: |
853e2bd2 BG |
1969 | mutex_unlock(&bnx2fc_dev_lock); |
1970 | } | |
1971 | ||
aea71a02 | 1972 | static void bnx2fc_start_disc(struct bnx2fc_interface *interface) |
853e2bd2 | 1973 | { |
fd8f8902 | 1974 | struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface); |
853e2bd2 BG |
1975 | struct fc_lport *lport; |
1976 | int wait_cnt = 0; | |
1977 | ||
1978 | BNX2FC_MISC_DBG("Entered %s\n", __func__); | |
1979 | /* Kick off FIP/FLOGI */ | |
aea71a02 | 1980 | if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &interface->hba->flags)) { |
853e2bd2 BG |
1981 | printk(KERN_ERR PFX "Init not done yet\n"); |
1982 | return; | |
1983 | } | |
1984 | ||
fd8f8902 | 1985 | lport = ctlr->lp; |
853e2bd2 BG |
1986 | BNX2FC_HBA_DBG(lport, "calling fc_fabric_login\n"); |
1987 | ||
8a5badf1 | 1988 | if (!bnx2fc_link_ok(lport) && interface->enabled) { |
853e2bd2 | 1989 | BNX2FC_HBA_DBG(lport, "ctlr_link_up\n"); |
fd8f8902 | 1990 | fcoe_ctlr_link_up(ctlr); |
853e2bd2 | 1991 | fc_host_port_type(lport->host) = FC_PORTTYPE_NPORT; |
aea71a02 | 1992 | set_bit(ADAPTER_STATE_READY, &interface->hba->adapter_state); |
853e2bd2 BG |
1993 | } |
1994 | ||
1995 | /* wait for the FCF to be selected before issuing FLOGI */ | |
fd8f8902 | 1996 | while (!ctlr->sel_fcf) { |
853e2bd2 BG |
1997 | msleep(250); |
1998 | /* give up after 3 secs */ | |
1999 | if (++wait_cnt > 12) | |
2000 | break; | |
2001 | } | |
627e628f BPG |
2002 | |
2003 | /* Reset max receive frame size to default */ | |
2004 | if (fc_set_mfs(lport, BNX2FC_MFS)) | |
2005 | return; | |
2006 | ||
853e2bd2 BG |
2007 | fc_lport_init(lport); |
2008 | fc_fabric_login(lport); | |
2009 | } | |
2010 | ||
2011 | ||
2012 | /** | |
2013 | * bnx2fc_ulp_init - Initialize an adapter instance | |
2014 | * | |
2015 | * @dev : cnic device handle | |
2016 | * Called from cnic_register_driver() context to initialize all | |
2017 | * enumerated cnic devices. This routine allocates adapter structure | |
2018 | * and other device specific resources. | |
2019 | */ | |
2020 | static void bnx2fc_ulp_init(struct cnic_dev *dev) | |
2021 | { | |
2022 | struct bnx2fc_hba *hba; | |
2023 | int rc = 0; | |
2024 | ||
2025 | BNX2FC_MISC_DBG("Entered %s\n", __func__); | |
2026 | /* bnx2fc works only when bnx2x is loaded */ | |
aea71a02 BPG |
2027 | if (!test_bit(CNIC_F_BNX2X_CLASS, &dev->flags) || |
2028 | (dev->max_fcoe_conn == 0)) { | |
853e2bd2 | 2029 | printk(KERN_ERR PFX "bnx2fc FCoE not supported on %s," |
aea71a02 BPG |
2030 | " flags: %lx fcoe_conn: %d\n", |
2031 | dev->netdev->name, dev->flags, dev->max_fcoe_conn); | |
853e2bd2 BG |
2032 | return; |
2033 | } | |
2034 | ||
aea71a02 | 2035 | hba = bnx2fc_hba_create(dev); |
853e2bd2 BG |
2036 | if (!hba) { |
2037 | printk(KERN_ERR PFX "hba initialization failed\n"); | |
2038 | return; | |
2039 | } | |
2040 | ||
f72464d1 CD |
2041 | pr_info(PFX "FCoE initialized for %s.\n", dev->netdev->name); |
2042 | ||
853e2bd2 BG |
2043 | /* Add HBA to the adapter list */ |
2044 | mutex_lock(&bnx2fc_dev_lock); | |
aea71a02 | 2045 | list_add_tail(&hba->list, &adapter_list); |
853e2bd2 BG |
2046 | adapter_count++; |
2047 | mutex_unlock(&bnx2fc_dev_lock); | |
2048 | ||
2e499d3c | 2049 | dev->fcoe_cap = &hba->fcoe_cap; |
853e2bd2 BG |
2050 | clear_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic); |
2051 | rc = dev->register_device(dev, CNIC_ULP_FCOE, | |
2052 | (void *) hba); | |
2053 | if (rc) | |
b2a554ff | 2054 | printk(KERN_ERR PFX "register_device failed, rc = %d\n", rc); |
853e2bd2 BG |
2055 | else |
2056 | set_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic); | |
2057 | } | |
2058 | ||
0680810c EW |
2059 | /* Assumes rtnl_lock and the bnx2fc_dev_lock are already taken */ |
2060 | static int __bnx2fc_disable(struct fcoe_ctlr *ctlr) | |
2061 | { | |
2062 | struct bnx2fc_interface *interface = fcoe_ctlr_priv(ctlr); | |
2063 | ||
2064 | if (interface->enabled == true) { | |
2065 | if (!ctlr->lp) { | |
2066 | pr_err(PFX "__bnx2fc_disable: lport not found\n"); | |
2067 | return -ENODEV; | |
2068 | } else { | |
2069 | interface->enabled = false; | |
2070 | fcoe_ctlr_link_down(ctlr); | |
2071 | fcoe_clean_pending_queue(ctlr->lp); | |
2072 | } | |
2073 | } | |
2074 | return 0; | |
2075 | } | |
2076 | ||
6e89ea3f RL |
2077 | /** |
2078 | * Deperecated: Use bnx2fc_enabled() | |
2079 | */ | |
853e2bd2 BG |
2080 | static int bnx2fc_disable(struct net_device *netdev) |
2081 | { | |
aea71a02 | 2082 | struct bnx2fc_interface *interface; |
fd8f8902 | 2083 | struct fcoe_ctlr *ctlr; |
853e2bd2 BG |
2084 | int rc = 0; |
2085 | ||
6702ca1d | 2086 | rtnl_lock(); |
853e2bd2 BG |
2087 | mutex_lock(&bnx2fc_dev_lock); |
2088 | ||
aea71a02 | 2089 | interface = bnx2fc_interface_lookup(netdev); |
fd8f8902 | 2090 | ctlr = bnx2fc_to_ctlr(interface); |
0680810c EW |
2091 | |
2092 | if (!interface) { | |
853e2bd2 | 2093 | rc = -ENODEV; |
0680810c | 2094 | pr_err(PFX "bnx2fc_disable: interface not found\n"); |
853e2bd2 | 2095 | } else { |
0680810c | 2096 | rc = __bnx2fc_disable(ctlr); |
853e2bd2 | 2097 | } |
853e2bd2 BG |
2098 | mutex_unlock(&bnx2fc_dev_lock); |
2099 | rtnl_unlock(); | |
2100 | return rc; | |
2101 | } | |
2102 | ||
2971ff67 JC |
2103 | static uint bnx2fc_npiv_create_vports(struct fc_lport *lport, |
2104 | struct cnic_fc_npiv_tbl *npiv_tbl) | |
2105 | { | |
2106 | struct fc_vport_identifiers vpid; | |
2107 | uint i, created = 0; | |
2108 | ||
2109 | if (npiv_tbl->count > MAX_NPIV_ENTRIES) { | |
2110 | BNX2FC_HBA_DBG(lport, "Exceeded count max of npiv table\n"); | |
2111 | goto done; | |
2112 | } | |
2113 | ||
2114 | /* Sanity check the first entry to make sure it's not 0 */ | |
2115 | if (wwn_to_u64(npiv_tbl->wwnn[0]) == 0 && | |
2116 | wwn_to_u64(npiv_tbl->wwpn[0]) == 0) { | |
2117 | BNX2FC_HBA_DBG(lport, "First NPIV table entries invalid.\n"); | |
2118 | goto done; | |
2119 | } | |
2120 | ||
2121 | vpid.roles = FC_PORT_ROLE_FCP_INITIATOR; | |
2122 | vpid.vport_type = FC_PORTTYPE_NPIV; | |
2123 | vpid.disable = false; | |
2124 | ||
2125 | for (i = 0; i < npiv_tbl->count; i++) { | |
2126 | vpid.node_name = wwn_to_u64(npiv_tbl->wwnn[i]); | |
2127 | vpid.port_name = wwn_to_u64(npiv_tbl->wwpn[i]); | |
2128 | scnprintf(vpid.symbolic_name, sizeof(vpid.symbolic_name), | |
2129 | "NPIV[%u]:%016llx-%016llx", | |
2130 | created, vpid.port_name, vpid.node_name); | |
2131 | if (fc_vport_create(lport->host, 0, &vpid)) | |
2132 | created++; | |
2133 | else | |
2134 | BNX2FC_HBA_DBG(lport, "Failed to create vport\n"); | |
2135 | } | |
2136 | done: | |
2137 | return created; | |
2138 | } | |
2139 | ||
0680810c EW |
2140 | static int __bnx2fc_enable(struct fcoe_ctlr *ctlr) |
2141 | { | |
2142 | struct bnx2fc_interface *interface = fcoe_ctlr_priv(ctlr); | |
2971ff67 | 2143 | struct bnx2fc_hba *hba; |
720ba808 | 2144 | struct cnic_fc_npiv_tbl *npiv_tbl; |
2971ff67 | 2145 | struct fc_lport *lport; |
0680810c EW |
2146 | |
2147 | if (interface->enabled == false) { | |
2148 | if (!ctlr->lp) { | |
2149 | pr_err(PFX "__bnx2fc_enable: lport not found\n"); | |
2150 | return -ENODEV; | |
2151 | } else if (!bnx2fc_link_ok(ctlr->lp)) { | |
2152 | fcoe_ctlr_link_up(ctlr); | |
2153 | interface->enabled = true; | |
2154 | } | |
2155 | } | |
2971ff67 JC |
2156 | |
2157 | /* Create static NPIV ports if any are contained in NVRAM */ | |
2158 | hba = interface->hba; | |
2159 | lport = ctlr->lp; | |
2160 | ||
2161 | if (!hba) | |
2162 | goto done; | |
2163 | ||
2164 | if (!hba->cnic) | |
2165 | goto done; | |
2166 | ||
2167 | if (!lport) | |
2168 | goto done; | |
2169 | ||
2170 | if (!lport->host) | |
2171 | goto done; | |
2172 | ||
2173 | if (!hba->cnic->get_fc_npiv_tbl) | |
2174 | goto done; | |
2175 | ||
720ba808 AB |
2176 | npiv_tbl = kzalloc(sizeof(struct cnic_fc_npiv_tbl), GFP_KERNEL); |
2177 | if (!npiv_tbl) | |
2971ff67 JC |
2178 | goto done; |
2179 | ||
720ba808 AB |
2180 | if (hba->cnic->get_fc_npiv_tbl(hba->cnic, npiv_tbl)) |
2181 | goto done_free; | |
2182 | ||
2183 | bnx2fc_npiv_create_vports(lport, npiv_tbl); | |
2184 | done_free: | |
2185 | kfree(npiv_tbl); | |
2971ff67 | 2186 | done: |
0680810c EW |
2187 | return 0; |
2188 | } | |
2189 | ||
6e89ea3f RL |
2190 | /** |
2191 | * Deprecated: Use bnx2fc_enabled() | |
2192 | */ | |
853e2bd2 BG |
2193 | static int bnx2fc_enable(struct net_device *netdev) |
2194 | { | |
aea71a02 | 2195 | struct bnx2fc_interface *interface; |
fd8f8902 | 2196 | struct fcoe_ctlr *ctlr; |
853e2bd2 BG |
2197 | int rc = 0; |
2198 | ||
6702ca1d | 2199 | rtnl_lock(); |
853e2bd2 BG |
2200 | mutex_lock(&bnx2fc_dev_lock); |
2201 | ||
aea71a02 | 2202 | interface = bnx2fc_interface_lookup(netdev); |
fd8f8902 | 2203 | ctlr = bnx2fc_to_ctlr(interface); |
0680810c | 2204 | if (!interface) { |
853e2bd2 | 2205 | rc = -ENODEV; |
0680810c EW |
2206 | pr_err(PFX "bnx2fc_enable: interface not found\n"); |
2207 | } else { | |
2208 | rc = __bnx2fc_enable(ctlr); | |
8a5badf1 | 2209 | } |
853e2bd2 | 2210 | |
853e2bd2 BG |
2211 | mutex_unlock(&bnx2fc_dev_lock); |
2212 | rtnl_unlock(); | |
2213 | return rc; | |
2214 | } | |
2215 | ||
2216 | /** | |
6e89ea3f RL |
2217 | * bnx2fc_ctlr_enabled() - Enable or disable an FCoE Controller |
2218 | * @cdev: The FCoE Controller that is being enabled or disabled | |
853e2bd2 | 2219 | * |
6e89ea3f RL |
2220 | * fcoe_sysfs will ensure that the state of 'enabled' has |
2221 | * changed, so no checking is necessary here. This routine simply | |
2222 | * calls fcoe_enable or fcoe_disable, both of which are deprecated. | |
2223 | * When those routines are removed the functionality can be merged | |
2224 | * here. | |
2225 | */ | |
2226 | static int bnx2fc_ctlr_enabled(struct fcoe_ctlr_device *cdev) | |
2227 | { | |
2228 | struct fcoe_ctlr *ctlr = fcoe_ctlr_device_priv(cdev); | |
6e89ea3f RL |
2229 | |
2230 | switch (cdev->enabled) { | |
2231 | case FCOE_CTLR_ENABLED: | |
0680810c | 2232 | return __bnx2fc_enable(ctlr); |
6e89ea3f | 2233 | case FCOE_CTLR_DISABLED: |
0680810c | 2234 | return __bnx2fc_disable(ctlr); |
6e89ea3f RL |
2235 | case FCOE_CTLR_UNUSED: |
2236 | default: | |
2237 | return -ENOTSUPP; | |
2238 | }; | |
2239 | } | |
2240 | ||
2241 | enum bnx2fc_create_link_state { | |
2242 | BNX2FC_CREATE_LINK_DOWN, | |
2243 | BNX2FC_CREATE_LINK_UP, | |
2244 | }; | |
2245 | ||
2246 | /** | |
2247 | * _bnx2fc_create() - Create bnx2fc FCoE interface | |
2248 | * @netdev : The net_device object the Ethernet interface to create on | |
2249 | * @fip_mode: The FIP mode for this creation | |
2250 | * @link_state: The ctlr link state on creation | |
853e2bd2 | 2251 | * |
6e89ea3f RL |
2252 | * Called from either the libfcoe 'create' module parameter |
2253 | * via fcoe_create or from fcoe_syfs's ctlr_create file. | |
853e2bd2 | 2254 | * |
6e89ea3f RL |
2255 | * libfcoe's 'create' module parameter is deprecated so some |
2256 | * consolidation of code can be done when that interface is | |
2257 | * removed. | |
853e2bd2 BG |
2258 | * |
2259 | * Returns: 0 for success | |
2260 | */ | |
6e89ea3f | 2261 | static int _bnx2fc_create(struct net_device *netdev, |
1917d42d | 2262 | enum fip_mode fip_mode, |
6e89ea3f | 2263 | enum bnx2fc_create_link_state link_state) |
853e2bd2 | 2264 | { |
6e89ea3f | 2265 | struct fcoe_ctlr_device *cdev; |
fd8f8902 | 2266 | struct fcoe_ctlr *ctlr; |
aea71a02 | 2267 | struct bnx2fc_interface *interface; |
853e2bd2 | 2268 | struct bnx2fc_hba *hba; |
7adc5a37 | 2269 | struct net_device *phys_dev = netdev; |
853e2bd2 BG |
2270 | struct fc_lport *lport; |
2271 | struct ethtool_drvinfo drvinfo; | |
2272 | int rc = 0; | |
7adc5a37 | 2273 | int vlan_id = 0; |
853e2bd2 BG |
2274 | |
2275 | BNX2FC_MISC_DBG("Entered bnx2fc_create\n"); | |
2276 | if (fip_mode != FIP_MODE_FABRIC) { | |
2277 | printk(KERN_ERR "fip mode not FABRIC\n"); | |
2278 | return -EIO; | |
2279 | } | |
2280 | ||
6702ca1d NS |
2281 | rtnl_lock(); |
2282 | ||
853e2bd2 BG |
2283 | mutex_lock(&bnx2fc_dev_lock); |
2284 | ||
853e2bd2 BG |
2285 | if (!try_module_get(THIS_MODULE)) { |
2286 | rc = -EINVAL; | |
2287 | goto mod_err; | |
2288 | } | |
2289 | ||
2290 | /* obtain physical netdev */ | |
d0d7b10b | 2291 | if (is_vlan_dev(netdev)) |
853e2bd2 | 2292 | phys_dev = vlan_dev_real_dev(netdev); |
7adc5a37 | 2293 | |
853e2bd2 BG |
2294 | /* verify if the physical device is a netxtreme2 device */ |
2295 | if (phys_dev->ethtool_ops && phys_dev->ethtool_ops->get_drvinfo) { | |
2296 | memset(&drvinfo, 0, sizeof(drvinfo)); | |
2297 | phys_dev->ethtool_ops->get_drvinfo(phys_dev, &drvinfo); | |
aea71a02 | 2298 | if (strncmp(drvinfo.driver, "bnx2x", strlen("bnx2x"))) { |
853e2bd2 BG |
2299 | printk(KERN_ERR PFX "Not a netxtreme2 device\n"); |
2300 | rc = -EINVAL; | |
2301 | goto netdev_err; | |
2302 | } | |
2303 | } else { | |
2304 | printk(KERN_ERR PFX "unable to obtain drv_info\n"); | |
2305 | rc = -EINVAL; | |
2306 | goto netdev_err; | |
2307 | } | |
2308 | ||
aea71a02 | 2309 | /* obtain interface and initialize rest of the structure */ |
853e2bd2 BG |
2310 | hba = bnx2fc_hba_lookup(phys_dev); |
2311 | if (!hba) { | |
2312 | rc = -ENODEV; | |
2313 | printk(KERN_ERR PFX "bnx2fc_create: hba not found\n"); | |
2314 | goto netdev_err; | |
2315 | } | |
2316 | ||
aea71a02 | 2317 | if (bnx2fc_interface_lookup(netdev)) { |
853e2bd2 BG |
2318 | rc = -EEXIST; |
2319 | goto netdev_err; | |
2320 | } | |
2321 | ||
aea71a02 BPG |
2322 | interface = bnx2fc_interface_create(hba, netdev, fip_mode); |
2323 | if (!interface) { | |
2324 | printk(KERN_ERR PFX "bnx2fc_interface_create failed\n"); | |
2043e1fd | 2325 | rc = -ENOMEM; |
853e2bd2 BG |
2326 | goto ifput_err; |
2327 | } | |
2328 | ||
d0d7b10b | 2329 | if (is_vlan_dev(netdev)) { |
7adc5a37 BPG |
2330 | vlan_id = vlan_dev_vlan_id(netdev); |
2331 | interface->vlan_enabled = 1; | |
2332 | } | |
2333 | ||
fd8f8902 | 2334 | ctlr = bnx2fc_to_ctlr(interface); |
01bdcb62 | 2335 | cdev = fcoe_ctlr_to_ctlr_dev(ctlr); |
aea71a02 | 2336 | interface->vlan_id = vlan_id; |
10755d3f | 2337 | interface->tm_timeout = BNX2FC_TM_TIMEOUT; |
aea71a02 BPG |
2338 | |
2339 | interface->timer_work_queue = | |
853e2bd2 | 2340 | create_singlethread_workqueue("bnx2fc_timer_wq"); |
aea71a02 | 2341 | if (!interface->timer_work_queue) { |
853e2bd2 BG |
2342 | printk(KERN_ERR PFX "ulp_init could not create timer_wq\n"); |
2343 | rc = -EINVAL; | |
2344 | goto ifput_err; | |
2345 | } | |
2346 | ||
01bdcb62 | 2347 | lport = bnx2fc_if_create(interface, &cdev->dev, 0); |
853e2bd2 BG |
2348 | if (!lport) { |
2349 | printk(KERN_ERR PFX "Failed to create interface (%s)\n", | |
2350 | netdev->name); | |
853e2bd2 BG |
2351 | rc = -EINVAL; |
2352 | goto if_create_err; | |
2353 | } | |
2354 | ||
aea71a02 BPG |
2355 | /* Add interface to if_list */ |
2356 | list_add_tail(&interface->list, &if_list); | |
2357 | ||
853e2bd2 BG |
2358 | lport->boot_time = jiffies; |
2359 | ||
2360 | /* Make this master N_port */ | |
fd8f8902 | 2361 | ctlr->lp = lport; |
853e2bd2 | 2362 | |
6e89ea3f RL |
2363 | if (link_state == BNX2FC_CREATE_LINK_UP) |
2364 | cdev->enabled = FCOE_CTLR_ENABLED; | |
2365 | else | |
2366 | cdev->enabled = FCOE_CTLR_DISABLED; | |
2367 | ||
2368 | if (link_state == BNX2FC_CREATE_LINK_UP && | |
2369 | !bnx2fc_link_ok(lport)) { | |
fd8f8902 | 2370 | fcoe_ctlr_link_up(ctlr); |
8a5badf1 BPG |
2371 | fc_host_port_type(lport->host) = FC_PORTTYPE_NPORT; |
2372 | set_bit(ADAPTER_STATE_READY, &interface->hba->adapter_state); | |
2373 | } | |
2374 | ||
aea71a02 BPG |
2375 | BNX2FC_HBA_DBG(lport, "create: START DISC\n"); |
2376 | bnx2fc_start_disc(interface); | |
6e89ea3f RL |
2377 | |
2378 | if (link_state == BNX2FC_CREATE_LINK_UP) | |
2379 | interface->enabled = true; | |
2380 | ||
853e2bd2 BG |
2381 | /* |
2382 | * Release from kref_init in bnx2fc_interface_setup, on success | |
2383 | * lport should be holding a reference taken in bnx2fc_if_create | |
2384 | */ | |
aea71a02 | 2385 | bnx2fc_interface_put(interface); |
853e2bd2 BG |
2386 | /* put netdev that was held while calling dev_get_by_name */ |
2387 | mutex_unlock(&bnx2fc_dev_lock); | |
2388 | rtnl_unlock(); | |
2389 | return 0; | |
2390 | ||
2391 | if_create_err: | |
aea71a02 | 2392 | destroy_workqueue(interface->timer_work_queue); |
853e2bd2 | 2393 | ifput_err: |
013068fa | 2394 | bnx2fc_net_cleanup(interface); |
aea71a02 | 2395 | bnx2fc_interface_put(interface); |
7d742f65 | 2396 | goto mod_err; |
853e2bd2 BG |
2397 | netdev_err: |
2398 | module_put(THIS_MODULE); | |
2399 | mod_err: | |
2400 | mutex_unlock(&bnx2fc_dev_lock); | |
2401 | rtnl_unlock(); | |
2402 | return rc; | |
2403 | } | |
2404 | ||
6e89ea3f RL |
2405 | /** |
2406 | * bnx2fc_create() - Create a bnx2fc interface | |
2407 | * @netdev : The net_device object the Ethernet interface to create on | |
2408 | * @fip_mode: The FIP mode for this creation | |
2409 | * | |
2410 | * Called from fcoe transport | |
2411 | * | |
2412 | * Returns: 0 for success | |
2413 | */ | |
1917d42d | 2414 | static int bnx2fc_create(struct net_device *netdev, enum fip_mode fip_mode) |
6e89ea3f RL |
2415 | { |
2416 | return _bnx2fc_create(netdev, fip_mode, BNX2FC_CREATE_LINK_UP); | |
2417 | } | |
2418 | ||
2419 | /** | |
2420 | * bnx2fc_ctlr_alloc() - Allocate a bnx2fc interface from fcoe_sysfs | |
2421 | * @netdev: The net_device to be used by the allocated FCoE Controller | |
2422 | * | |
2423 | * This routine is called from fcoe_sysfs. It will start the fcoe_ctlr | |
2424 | * in a link_down state. The allows the user an opportunity to configure | |
2425 | * the FCoE Controller from sysfs before enabling the FCoE Controller. | |
2426 | * | |
2427 | * Creating in with this routine starts the FCoE Controller in Fabric | |
2428 | * mode. The user can change to VN2VN or another mode before enabling. | |
2429 | */ | |
2430 | static int bnx2fc_ctlr_alloc(struct net_device *netdev) | |
2431 | { | |
2432 | return _bnx2fc_create(netdev, FIP_MODE_FABRIC, | |
2433 | BNX2FC_CREATE_LINK_DOWN); | |
2434 | } | |
2435 | ||
853e2bd2 | 2436 | /** |
aea71a02 | 2437 | * bnx2fc_find_hba_for_cnic - maps cnic instance to bnx2fc hba instance |
853e2bd2 BG |
2438 | * |
2439 | * @cnic: Pointer to cnic device instance | |
2440 | * | |
2441 | **/ | |
2442 | static struct bnx2fc_hba *bnx2fc_find_hba_for_cnic(struct cnic_dev *cnic) | |
2443 | { | |
853e2bd2 BG |
2444 | struct bnx2fc_hba *hba; |
2445 | ||
2446 | /* Called with bnx2fc_dev_lock held */ | |
d71fb3bd | 2447 | list_for_each_entry(hba, &adapter_list, list) { |
853e2bd2 BG |
2448 | if (hba->cnic == cnic) |
2449 | return hba; | |
2450 | } | |
2451 | return NULL; | |
2452 | } | |
2453 | ||
aea71a02 BPG |
2454 | static struct bnx2fc_interface *bnx2fc_interface_lookup(struct net_device |
2455 | *netdev) | |
2456 | { | |
2457 | struct bnx2fc_interface *interface; | |
2458 | ||
2459 | /* Called with bnx2fc_dev_lock held */ | |
2460 | list_for_each_entry(interface, &if_list, list) { | |
2461 | if (interface->netdev == netdev) | |
2462 | return interface; | |
2463 | } | |
2464 | return NULL; | |
2465 | } | |
2466 | ||
2467 | static struct bnx2fc_hba *bnx2fc_hba_lookup(struct net_device | |
2468 | *phys_dev) | |
853e2bd2 | 2469 | { |
853e2bd2 BG |
2470 | struct bnx2fc_hba *hba; |
2471 | ||
2472 | /* Called with bnx2fc_dev_lock held */ | |
aea71a02 | 2473 | list_for_each_entry(hba, &adapter_list, list) { |
853e2bd2 BG |
2474 | if (hba->phys_dev == phys_dev) |
2475 | return hba; | |
2476 | } | |
aea71a02 | 2477 | printk(KERN_ERR PFX "adapter_lookup: hba NULL\n"); |
853e2bd2 BG |
2478 | return NULL; |
2479 | } | |
2480 | ||
2481 | /** | |
2482 | * bnx2fc_ulp_exit - shuts down adapter instance and frees all resources | |
2483 | * | |
2484 | * @dev cnic device handle | |
2485 | */ | |
2486 | static void bnx2fc_ulp_exit(struct cnic_dev *dev) | |
2487 | { | |
2488 | struct bnx2fc_hba *hba; | |
aea71a02 | 2489 | struct bnx2fc_interface *interface, *tmp; |
853e2bd2 BG |
2490 | |
2491 | BNX2FC_MISC_DBG("Entered bnx2fc_ulp_exit\n"); | |
2492 | ||
2493 | if (!test_bit(CNIC_F_BNX2X_CLASS, &dev->flags)) { | |
2494 | printk(KERN_ERR PFX "bnx2fc port check: %s, flags: %lx\n", | |
2495 | dev->netdev->name, dev->flags); | |
2496 | return; | |
2497 | } | |
2498 | ||
2499 | mutex_lock(&bnx2fc_dev_lock); | |
2500 | hba = bnx2fc_find_hba_for_cnic(dev); | |
2501 | if (!hba) { | |
2502 | printk(KERN_ERR PFX "bnx2fc_ulp_exit: hba not found, dev 0%p\n", | |
2503 | dev); | |
2504 | mutex_unlock(&bnx2fc_dev_lock); | |
2505 | return; | |
2506 | } | |
2507 | ||
aea71a02 | 2508 | list_del_init(&hba->list); |
853e2bd2 BG |
2509 | adapter_count--; |
2510 | ||
abc49a93 | 2511 | list_for_each_entry_safe(interface, tmp, &if_list, list) |
853e2bd2 | 2512 | /* destroy not called yet, move to quiesced list */ |
abc49a93 | 2513 | if (interface->hba == hba) |
eccdcd02 | 2514 | __bnx2fc_destroy(interface); |
853e2bd2 BG |
2515 | mutex_unlock(&bnx2fc_dev_lock); |
2516 | ||
06c4f20d EW |
2517 | /* Ensure ALL destroy work has been completed before return */ |
2518 | flush_workqueue(bnx2fc_wq); | |
2519 | ||
853e2bd2 BG |
2520 | bnx2fc_ulp_stop(hba); |
2521 | /* unregister cnic device */ | |
2522 | if (test_and_clear_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic)) | |
2523 | hba->cnic->unregister_device(hba->cnic, CNIC_ULP_FCOE); | |
aea71a02 | 2524 | bnx2fc_hba_destroy(hba); |
853e2bd2 BG |
2525 | } |
2526 | ||
2527 | /** | |
2528 | * bnx2fc_fcoe_reset - Resets the fcoe | |
2529 | * | |
2530 | * @shost: shost the reset is from | |
2531 | * | |
2532 | * Returns: always 0 | |
2533 | */ | |
2534 | static int bnx2fc_fcoe_reset(struct Scsi_Host *shost) | |
2535 | { | |
2536 | struct fc_lport *lport = shost_priv(shost); | |
2537 | fc_lport_reset(lport); | |
2538 | return 0; | |
2539 | } | |
2540 | ||
2541 | ||
2542 | static bool bnx2fc_match(struct net_device *netdev) | |
2543 | { | |
7adc5a37 BPG |
2544 | struct net_device *phys_dev = netdev; |
2545 | ||
853e2bd2 | 2546 | mutex_lock(&bnx2fc_dev_lock); |
d0d7b10b | 2547 | if (is_vlan_dev(netdev)) |
7adc5a37 | 2548 | phys_dev = vlan_dev_real_dev(netdev); |
853e2bd2 | 2549 | |
7adc5a37 BPG |
2550 | if (bnx2fc_hba_lookup(phys_dev)) { |
2551 | mutex_unlock(&bnx2fc_dev_lock); | |
2552 | return true; | |
853e2bd2 | 2553 | } |
7adc5a37 | 2554 | |
853e2bd2 BG |
2555 | mutex_unlock(&bnx2fc_dev_lock); |
2556 | return false; | |
2557 | } | |
2558 | ||
2559 | ||
2560 | static struct fcoe_transport bnx2fc_transport = { | |
2561 | .name = {"bnx2fc"}, | |
2562 | .attached = false, | |
2563 | .list = LIST_HEAD_INIT(bnx2fc_transport.list), | |
6e89ea3f | 2564 | .alloc = bnx2fc_ctlr_alloc, |
853e2bd2 BG |
2565 | .match = bnx2fc_match, |
2566 | .create = bnx2fc_create, | |
2567 | .destroy = bnx2fc_destroy, | |
2568 | .enable = bnx2fc_enable, | |
2569 | .disable = bnx2fc_disable, | |
2570 | }; | |
2571 | ||
2572 | /** | |
2573 | * bnx2fc_percpu_thread_create - Create a receive thread for an | |
2574 | * online CPU | |
2575 | * | |
2576 | * @cpu: cpu index for the online cpu | |
2577 | */ | |
2578 | static void bnx2fc_percpu_thread_create(unsigned int cpu) | |
2579 | { | |
2580 | struct bnx2fc_percpu_s *p; | |
2581 | struct task_struct *thread; | |
2582 | ||
2583 | p = &per_cpu(bnx2fc_percpu, cpu); | |
2584 | ||
69614270 ED |
2585 | thread = kthread_create_on_node(bnx2fc_percpu_io_thread, |
2586 | (void *)p, cpu_to_node(cpu), | |
2587 | "bnx2fc_thread/%d", cpu); | |
853e2bd2 | 2588 | /* bind thread to the cpu */ |
32248763 | 2589 | if (likely(!IS_ERR(thread))) { |
853e2bd2 BG |
2590 | kthread_bind(thread, cpu); |
2591 | p->iothread = thread; | |
2592 | wake_up_process(thread); | |
2593 | } | |
2594 | } | |
2595 | ||
2596 | static void bnx2fc_percpu_thread_destroy(unsigned int cpu) | |
2597 | { | |
2598 | struct bnx2fc_percpu_s *p; | |
2599 | struct task_struct *thread; | |
2600 | struct bnx2fc_work *work, *tmp; | |
853e2bd2 BG |
2601 | |
2602 | BNX2FC_MISC_DBG("destroying io thread for CPU %d\n", cpu); | |
2603 | ||
2604 | /* Prevent any new work from being queued for this CPU */ | |
2605 | p = &per_cpu(bnx2fc_percpu, cpu); | |
2606 | spin_lock_bh(&p->fp_work_lock); | |
2607 | thread = p->iothread; | |
2608 | p->iothread = NULL; | |
2609 | ||
2610 | ||
2611 | /* Free all work in the list */ | |
32248763 | 2612 | list_for_each_entry_safe(work, tmp, &p->work_list, list) { |
853e2bd2 BG |
2613 | list_del_init(&work->list); |
2614 | bnx2fc_process_cq_compl(work->tgt, work->wqe); | |
2615 | kfree(work); | |
2616 | } | |
2617 | ||
2618 | spin_unlock_bh(&p->fp_work_lock); | |
2619 | ||
2620 | if (thread) | |
2621 | kthread_stop(thread); | |
2622 | } | |
2623 | ||
c53b005d SAS |
2624 | |
2625 | static int bnx2fc_cpu_online(unsigned int cpu) | |
853e2bd2 | 2626 | { |
c53b005d SAS |
2627 | printk(PFX "CPU %x online: Create Rx thread\n", cpu); |
2628 | bnx2fc_percpu_thread_create(cpu); | |
2629 | return 0; | |
2630 | } | |
853e2bd2 | 2631 | |
c53b005d SAS |
2632 | static int bnx2fc_cpu_dead(unsigned int cpu) |
2633 | { | |
2634 | printk(PFX "CPU %x offline: Remove Rx thread\n", cpu); | |
2635 | bnx2fc_percpu_thread_destroy(cpu); | |
2636 | return 0; | |
853e2bd2 BG |
2637 | } |
2638 | ||
10755d3f JC |
2639 | static int bnx2fc_slave_configure(struct scsi_device *sdev) |
2640 | { | |
2641 | if (!bnx2fc_queue_depth) | |
2642 | return 0; | |
2643 | ||
2644 | scsi_change_queue_depth(sdev, bnx2fc_queue_depth); | |
2645 | return 0; | |
2646 | } | |
2647 | ||
c53b005d SAS |
2648 | static enum cpuhp_state bnx2fc_online_state; |
2649 | ||
853e2bd2 BG |
2650 | /** |
2651 | * bnx2fc_mod_init - module init entry point | |
2652 | * | |
2653 | * Initialize driver wide global data structures, and register | |
2654 | * with cnic module | |
2655 | **/ | |
2656 | static int __init bnx2fc_mod_init(void) | |
2657 | { | |
2658 | struct fcoe_percpu_s *bg; | |
2659 | struct task_struct *l2_thread; | |
2660 | int rc = 0; | |
2661 | unsigned int cpu = 0; | |
2662 | struct bnx2fc_percpu_s *p; | |
2663 | ||
2664 | printk(KERN_INFO PFX "%s", version); | |
2665 | ||
2666 | /* register as a fcoe transport */ | |
2667 | rc = fcoe_transport_attach(&bnx2fc_transport); | |
2668 | if (rc) { | |
2669 | printk(KERN_ERR "failed to register an fcoe transport, check " | |
2670 | "if libfcoe is loaded\n"); | |
2671 | goto out; | |
2672 | } | |
2673 | ||
2674 | INIT_LIST_HEAD(&adapter_list); | |
aea71a02 | 2675 | INIT_LIST_HEAD(&if_list); |
853e2bd2 BG |
2676 | mutex_init(&bnx2fc_dev_lock); |
2677 | adapter_count = 0; | |
2678 | ||
2679 | /* Attach FC transport template */ | |
2680 | rc = bnx2fc_attach_transport(); | |
2681 | if (rc) | |
2682 | goto detach_ft; | |
2683 | ||
2684 | bnx2fc_wq = alloc_workqueue("bnx2fc", 0, 0); | |
2685 | if (!bnx2fc_wq) { | |
2686 | rc = -ENOMEM; | |
2687 | goto release_bt; | |
2688 | } | |
2689 | ||
2690 | bg = &bnx2fc_global; | |
2691 | skb_queue_head_init(&bg->fcoe_rx_list); | |
2692 | l2_thread = kthread_create(bnx2fc_l2_rcv_thread, | |
2693 | (void *)bg, | |
2694 | "bnx2fc_l2_thread"); | |
2695 | if (IS_ERR(l2_thread)) { | |
2696 | rc = PTR_ERR(l2_thread); | |
2697 | goto free_wq; | |
2698 | } | |
2699 | wake_up_process(l2_thread); | |
2700 | spin_lock_bh(&bg->fcoe_rx_list.lock); | |
4b9bc86d | 2701 | bg->kthread = l2_thread; |
853e2bd2 BG |
2702 | spin_unlock_bh(&bg->fcoe_rx_list.lock); |
2703 | ||
2704 | for_each_possible_cpu(cpu) { | |
2705 | p = &per_cpu(bnx2fc_percpu, cpu); | |
2706 | INIT_LIST_HEAD(&p->work_list); | |
2707 | spin_lock_init(&p->fp_work_lock); | |
2708 | } | |
2709 | ||
c53b005d | 2710 | get_online_cpus(); |
7229b6d0 | 2711 | |
c53b005d | 2712 | for_each_online_cpu(cpu) |
853e2bd2 | 2713 | bnx2fc_percpu_thread_create(cpu); |
853e2bd2 | 2714 | |
c53b005d SAS |
2715 | rc = cpuhp_setup_state_nocalls(CPUHP_AP_ONLINE_DYN, |
2716 | "scsi/bnx2fc:online", | |
2717 | bnx2fc_cpu_online, NULL); | |
2718 | if (rc < 0) | |
2719 | goto stop_threads; | |
2720 | bnx2fc_online_state = rc; | |
7229b6d0 | 2721 | |
c53b005d SAS |
2722 | cpuhp_setup_state_nocalls(CPUHP_SCSI_BNX2FC_DEAD, "scsi/bnx2fc:dead", |
2723 | NULL, bnx2fc_cpu_dead); | |
2724 | put_online_cpus(); | |
853e2bd2 BG |
2725 | |
2726 | cnic_register_driver(CNIC_ULP_FCOE, &bnx2fc_cnic_cb); | |
2727 | ||
2728 | return 0; | |
2729 | ||
c53b005d SAS |
2730 | stop_threads: |
2731 | for_each_online_cpu(cpu) | |
2732 | bnx2fc_percpu_thread_destroy(cpu); | |
2733 | put_online_cpus(); | |
2734 | kthread_stop(l2_thread); | |
853e2bd2 BG |
2735 | free_wq: |
2736 | destroy_workqueue(bnx2fc_wq); | |
2737 | release_bt: | |
2738 | bnx2fc_release_transport(); | |
2739 | detach_ft: | |
2740 | fcoe_transport_detach(&bnx2fc_transport); | |
2741 | out: | |
2742 | return rc; | |
2743 | } | |
2744 | ||
2745 | static void __exit bnx2fc_mod_exit(void) | |
2746 | { | |
2747 | LIST_HEAD(to_be_deleted); | |
2748 | struct bnx2fc_hba *hba, *next; | |
2749 | struct fcoe_percpu_s *bg; | |
2750 | struct task_struct *l2_thread; | |
2751 | struct sk_buff *skb; | |
2752 | unsigned int cpu = 0; | |
2753 | ||
2754 | /* | |
2755 | * NOTE: Since cnic calls register_driver routine rtnl_lock, | |
2756 | * it will have higher precedence than bnx2fc_dev_lock. | |
2757 | * unregister_device() cannot be called with bnx2fc_dev_lock | |
2758 | * held. | |
2759 | */ | |
2760 | mutex_lock(&bnx2fc_dev_lock); | |
393c8019 | 2761 | list_splice_init(&adapter_list, &to_be_deleted); |
853e2bd2 BG |
2762 | adapter_count = 0; |
2763 | mutex_unlock(&bnx2fc_dev_lock); | |
2764 | ||
2765 | /* Unregister with cnic */ | |
aea71a02 BPG |
2766 | list_for_each_entry_safe(hba, next, &to_be_deleted, list) { |
2767 | list_del_init(&hba->list); | |
2768 | printk(KERN_ERR PFX "MOD_EXIT:destroy hba = 0x%p\n", | |
2769 | hba); | |
853e2bd2 BG |
2770 | bnx2fc_ulp_stop(hba); |
2771 | /* unregister cnic device */ | |
2772 | if (test_and_clear_bit(BNX2FC_CNIC_REGISTERED, | |
2773 | &hba->reg_with_cnic)) | |
aea71a02 BPG |
2774 | hba->cnic->unregister_device(hba->cnic, |
2775 | CNIC_ULP_FCOE); | |
2776 | bnx2fc_hba_destroy(hba); | |
853e2bd2 BG |
2777 | } |
2778 | cnic_unregister_driver(CNIC_ULP_FCOE); | |
2779 | ||
2780 | /* Destroy global thread */ | |
2781 | bg = &bnx2fc_global; | |
2782 | spin_lock_bh(&bg->fcoe_rx_list.lock); | |
4b9bc86d SAS |
2783 | l2_thread = bg->kthread; |
2784 | bg->kthread = NULL; | |
853e2bd2 BG |
2785 | while ((skb = __skb_dequeue(&bg->fcoe_rx_list)) != NULL) |
2786 | kfree_skb(skb); | |
2787 | ||
2788 | spin_unlock_bh(&bg->fcoe_rx_list.lock); | |
2789 | ||
2790 | if (l2_thread) | |
2791 | kthread_stop(l2_thread); | |
2792 | ||
c53b005d | 2793 | get_online_cpus(); |
853e2bd2 BG |
2794 | /* Destroy per cpu threads */ |
2795 | for_each_online_cpu(cpu) { | |
2796 | bnx2fc_percpu_thread_destroy(cpu); | |
2797 | } | |
2798 | ||
c53b005d SAS |
2799 | cpuhp_remove_state_nocalls(bnx2fc_online_state); |
2800 | cpuhp_remove_state_nocalls(CPUHP_SCSI_BNX2FC_DEAD); | |
7229b6d0 | 2801 | |
c53b005d | 2802 | put_online_cpus(); |
7229b6d0 | 2803 | |
853e2bd2 BG |
2804 | destroy_workqueue(bnx2fc_wq); |
2805 | /* | |
2806 | * detach from scsi transport | |
2807 | * must happen after all destroys are done | |
2808 | */ | |
2809 | bnx2fc_release_transport(); | |
2810 | ||
2811 | /* detach from fcoe transport */ | |
2812 | fcoe_transport_detach(&bnx2fc_transport); | |
2813 | } | |
2814 | ||
2815 | module_init(bnx2fc_mod_init); | |
2816 | module_exit(bnx2fc_mod_exit); | |
2817 | ||
8d55e507 | 2818 | static struct fcoe_sysfs_function_template bnx2fc_fcoe_sysfs_templ = { |
6e89ea3f | 2819 | .set_fcoe_ctlr_enabled = bnx2fc_ctlr_enabled, |
b8b3e697 YZ |
2820 | .get_fcoe_ctlr_link_fail = fcoe_ctlr_get_lesb, |
2821 | .get_fcoe_ctlr_vlink_fail = fcoe_ctlr_get_lesb, | |
2822 | .get_fcoe_ctlr_miss_fka = fcoe_ctlr_get_lesb, | |
2823 | .get_fcoe_ctlr_symb_err = fcoe_ctlr_get_lesb, | |
2824 | .get_fcoe_ctlr_err_block = fcoe_ctlr_get_lesb, | |
2825 | .get_fcoe_ctlr_fcs_error = fcoe_ctlr_get_lesb, | |
8d55e507 RL |
2826 | |
2827 | .get_fcoe_fcf_selected = fcoe_fcf_get_selected, | |
2828 | .get_fcoe_fcf_vlan_id = bnx2fc_fcf_get_vlan_id, | |
2829 | }; | |
2830 | ||
853e2bd2 BG |
2831 | static struct fc_function_template bnx2fc_transport_function = { |
2832 | .show_host_node_name = 1, | |
2833 | .show_host_port_name = 1, | |
2834 | .show_host_supported_classes = 1, | |
2835 | .show_host_supported_fc4s = 1, | |
2836 | .show_host_active_fc4s = 1, | |
2837 | .show_host_maxframe_size = 1, | |
2838 | ||
2839 | .show_host_port_id = 1, | |
2840 | .show_host_supported_speeds = 1, | |
2841 | .get_host_speed = fc_get_host_speed, | |
2842 | .show_host_speed = 1, | |
2843 | .show_host_port_type = 1, | |
2844 | .get_host_port_state = fc_get_host_port_state, | |
2845 | .show_host_port_state = 1, | |
2846 | .show_host_symbolic_name = 1, | |
2847 | ||
2848 | .dd_fcrport_size = (sizeof(struct fc_rport_libfc_priv) + | |
2849 | sizeof(struct bnx2fc_rport)), | |
2850 | .show_rport_maxframe_size = 1, | |
2851 | .show_rport_supported_classes = 1, | |
2852 | ||
2853 | .show_host_fabric_name = 1, | |
2854 | .show_starget_node_name = 1, | |
2855 | .show_starget_port_name = 1, | |
2856 | .show_starget_port_id = 1, | |
2857 | .set_rport_dev_loss_tmo = fc_set_rport_loss_tmo, | |
2858 | .show_rport_dev_loss_tmo = 1, | |
2859 | .get_fc_host_stats = bnx2fc_get_host_stats, | |
2860 | ||
2861 | .issue_fc_host_lip = bnx2fc_fcoe_reset, | |
2862 | ||
2863 | .terminate_rport_io = fc_rport_terminate_io, | |
2864 | ||
2865 | .vport_create = bnx2fc_vport_create, | |
2866 | .vport_delete = bnx2fc_vport_destroy, | |
2867 | .vport_disable = bnx2fc_vport_disable, | |
e9a5289c | 2868 | .bsg_request = fc_lport_bsg_request, |
853e2bd2 BG |
2869 | }; |
2870 | ||
2871 | static struct fc_function_template bnx2fc_vport_xport_function = { | |
2872 | .show_host_node_name = 1, | |
2873 | .show_host_port_name = 1, | |
2874 | .show_host_supported_classes = 1, | |
2875 | .show_host_supported_fc4s = 1, | |
2876 | .show_host_active_fc4s = 1, | |
2877 | .show_host_maxframe_size = 1, | |
2878 | ||
2879 | .show_host_port_id = 1, | |
2880 | .show_host_supported_speeds = 1, | |
2881 | .get_host_speed = fc_get_host_speed, | |
2882 | .show_host_speed = 1, | |
2883 | .show_host_port_type = 1, | |
2884 | .get_host_port_state = fc_get_host_port_state, | |
2885 | .show_host_port_state = 1, | |
2886 | .show_host_symbolic_name = 1, | |
2887 | ||
2888 | .dd_fcrport_size = (sizeof(struct fc_rport_libfc_priv) + | |
2889 | sizeof(struct bnx2fc_rport)), | |
2890 | .show_rport_maxframe_size = 1, | |
2891 | .show_rport_supported_classes = 1, | |
2892 | ||
2893 | .show_host_fabric_name = 1, | |
2894 | .show_starget_node_name = 1, | |
2895 | .show_starget_port_name = 1, | |
2896 | .show_starget_port_id = 1, | |
2897 | .set_rport_dev_loss_tmo = fc_set_rport_loss_tmo, | |
2898 | .show_rport_dev_loss_tmo = 1, | |
2899 | .get_fc_host_stats = fc_get_host_stats, | |
2900 | .issue_fc_host_lip = bnx2fc_fcoe_reset, | |
2901 | .terminate_rport_io = fc_rport_terminate_io, | |
e9a5289c | 2902 | .bsg_request = fc_lport_bsg_request, |
853e2bd2 BG |
2903 | }; |
2904 | ||
10755d3f JC |
2905 | /* |
2906 | * Additional scsi_host attributes. | |
2907 | */ | |
2908 | static ssize_t | |
2909 | bnx2fc_tm_timeout_show(struct device *dev, struct device_attribute *attr, | |
2910 | char *buf) | |
2911 | { | |
2912 | struct Scsi_Host *shost = class_to_shost(dev); | |
2913 | struct fc_lport *lport = shost_priv(shost); | |
2914 | struct fcoe_port *port = lport_priv(lport); | |
2915 | struct bnx2fc_interface *interface = port->priv; | |
2916 | ||
2917 | sprintf(buf, "%u\n", interface->tm_timeout); | |
2918 | return strlen(buf); | |
2919 | } | |
2920 | ||
2921 | static ssize_t | |
2922 | bnx2fc_tm_timeout_store(struct device *dev, | |
2923 | struct device_attribute *attr, const char *buf, size_t count) | |
2924 | { | |
2925 | struct Scsi_Host *shost = class_to_shost(dev); | |
2926 | struct fc_lport *lport = shost_priv(shost); | |
2927 | struct fcoe_port *port = lport_priv(lport); | |
2928 | struct bnx2fc_interface *interface = port->priv; | |
2929 | int rval, val; | |
2930 | ||
2931 | rval = kstrtouint(buf, 10, &val); | |
2932 | if (rval) | |
2933 | return rval; | |
2934 | if (val > 255) | |
2935 | return -ERANGE; | |
2936 | ||
2937 | interface->tm_timeout = (u8)val; | |
2938 | return strlen(buf); | |
2939 | } | |
2940 | ||
2941 | static DEVICE_ATTR(tm_timeout, S_IRUGO|S_IWUSR, bnx2fc_tm_timeout_show, | |
2942 | bnx2fc_tm_timeout_store); | |
2943 | ||
2944 | static struct device_attribute *bnx2fc_host_attrs[] = { | |
2945 | &dev_attr_tm_timeout, | |
2946 | NULL, | |
2947 | }; | |
2948 | ||
853e2bd2 BG |
2949 | /** |
2950 | * scsi_host_template structure used while registering with SCSI-ml | |
2951 | */ | |
2952 | static struct scsi_host_template bnx2fc_shost_template = { | |
2953 | .module = THIS_MODULE, | |
17d87c45 | 2954 | .name = "QLogic Offload FCoE Initiator", |
853e2bd2 | 2955 | .queuecommand = bnx2fc_queuecommand, |
b6a05c82 | 2956 | .eh_timed_out = fc_eh_timed_out, |
853e2bd2 BG |
2957 | .eh_abort_handler = bnx2fc_eh_abort, /* abts */ |
2958 | .eh_device_reset_handler = bnx2fc_eh_device_reset, /* lun reset */ | |
2959 | .eh_target_reset_handler = bnx2fc_eh_target_reset, /* tgt reset */ | |
2960 | .eh_host_reset_handler = fc_eh_host_reset, | |
2961 | .slave_alloc = fc_slave_alloc, | |
db5ed4df | 2962 | .change_queue_depth = scsi_change_queue_depth, |
853e2bd2 BG |
2963 | .this_id = -1, |
2964 | .cmd_per_lun = 3, | |
853e2bd2 BG |
2965 | .use_clustering = ENABLE_CLUSTERING, |
2966 | .sg_tablesize = BNX2FC_MAX_BDS_PER_CMD, | |
d450d778 | 2967 | .max_sectors = 1024, |
c40ecc12 | 2968 | .track_queue_depth = 1, |
10755d3f JC |
2969 | .slave_configure = bnx2fc_slave_configure, |
2970 | .shost_attrs = bnx2fc_host_attrs, | |
853e2bd2 BG |
2971 | }; |
2972 | ||
2973 | static struct libfc_function_template bnx2fc_libfc_fcn_templ = { | |
2974 | .frame_send = bnx2fc_xmit, | |
2975 | .elsct_send = bnx2fc_elsct_send, | |
2976 | .fcp_abort_io = bnx2fc_abort_io, | |
2977 | .fcp_cleanup = bnx2fc_cleanup, | |
b8b3e697 | 2978 | .get_lesb = fcoe_get_lesb, |
853e2bd2 BG |
2979 | .rport_event_callback = bnx2fc_rport_event_handler, |
2980 | }; | |
2981 | ||
2982 | /** | |
2983 | * bnx2fc_cnic_cb - global template of bnx2fc - cnic driver interface | |
2984 | * structure carrying callback function pointers | |
2985 | */ | |
2986 | static struct cnic_ulp_ops bnx2fc_cnic_cb = { | |
2987 | .owner = THIS_MODULE, | |
2988 | .cnic_init = bnx2fc_ulp_init, | |
2989 | .cnic_exit = bnx2fc_ulp_exit, | |
2990 | .cnic_start = bnx2fc_ulp_start, | |
2991 | .cnic_stop = bnx2fc_ulp_stop, | |
2992 | .indicate_kcqes = bnx2fc_indicate_kcqe, | |
2993 | .indicate_netevent = bnx2fc_indicate_netevent, | |
2e499d3c | 2994 | .cnic_get_stats = bnx2fc_ulp_get_stats, |
853e2bd2 | 2995 | }; |