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Commit | Line | Data |
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853e2bd2 BG |
1 | /* bnx2fc_fcoe.c: Broadcom NetXtreme II Linux FCoE offload driver. |
2 | * This file contains the code that interacts with libfc, libfcoe, | |
3 | * cnic modules to create FCoE instances, send/receive non-offloaded | |
4 | * FIP/FCoE packets, listen to link events etc. | |
5 | * | |
cf122191 | 6 | * Copyright (c) 2008 - 2013 Broadcom Corporation |
853e2bd2 BG |
7 | * |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation. | |
11 | * | |
12 | * Written by: Bhanu Prakash Gollapudi (bprakash@broadcom.com) | |
13 | */ | |
14 | ||
15 | #include "bnx2fc.h" | |
16 | ||
17 | static struct list_head adapter_list; | |
aea71a02 | 18 | static struct list_head if_list; |
853e2bd2 BG |
19 | static u32 adapter_count; |
20 | static DEFINE_MUTEX(bnx2fc_dev_lock); | |
21 | DEFINE_PER_CPU(struct bnx2fc_percpu_s, bnx2fc_percpu); | |
22 | ||
23 | #define DRV_MODULE_NAME "bnx2fc" | |
24 | #define DRV_MODULE_VERSION BNX2FC_VERSION | |
0a7d1d36 | 25 | #define DRV_MODULE_RELDATE "Mar 08, 2013" |
853e2bd2 BG |
26 | |
27 | ||
6f039790 | 28 | static char version[] = |
853e2bd2 BG |
29 | "Broadcom NetXtreme II FCoE Driver " DRV_MODULE_NAME \ |
30 | " v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n"; | |
31 | ||
32 | ||
33 | MODULE_AUTHOR("Bhanu Prakash Gollapudi <bprakash@broadcom.com>"); | |
34 | MODULE_DESCRIPTION("Broadcom NetXtreme II BCM57710 FCoE Driver"); | |
35 | MODULE_LICENSE("GPL"); | |
36 | MODULE_VERSION(DRV_MODULE_VERSION); | |
37 | ||
38 | #define BNX2FC_MAX_QUEUE_DEPTH 256 | |
39 | #define BNX2FC_MIN_QUEUE_DEPTH 32 | |
40 | #define FCOE_WORD_TO_BYTE 4 | |
41 | ||
42 | static struct scsi_transport_template *bnx2fc_transport_template; | |
43 | static struct scsi_transport_template *bnx2fc_vport_xport_template; | |
44 | ||
45 | struct workqueue_struct *bnx2fc_wq; | |
46 | ||
47 | /* bnx2fc structure needs only one instance of the fcoe_percpu_s structure. | |
48 | * Here the io threads are per cpu but the l2 thread is just one | |
49 | */ | |
50 | struct fcoe_percpu_s bnx2fc_global; | |
51 | DEFINE_SPINLOCK(bnx2fc_global_lock); | |
52 | ||
53 | static struct cnic_ulp_ops bnx2fc_cnic_cb; | |
54 | static struct libfc_function_template bnx2fc_libfc_fcn_templ; | |
55 | static struct scsi_host_template bnx2fc_shost_template; | |
56 | static struct fc_function_template bnx2fc_transport_function; | |
8d55e507 | 57 | static struct fcoe_sysfs_function_template bnx2fc_fcoe_sysfs_templ; |
853e2bd2 BG |
58 | static struct fc_function_template bnx2fc_vport_xport_function; |
59 | static int bnx2fc_create(struct net_device *netdev, enum fip_state fip_mode); | |
eccdcd02 | 60 | static void __bnx2fc_destroy(struct bnx2fc_interface *interface); |
853e2bd2 BG |
61 | static int bnx2fc_destroy(struct net_device *net_device); |
62 | static int bnx2fc_enable(struct net_device *netdev); | |
63 | static int bnx2fc_disable(struct net_device *netdev); | |
64 | ||
6e89ea3f RL |
65 | /* fcoe_syfs control interface handlers */ |
66 | static int bnx2fc_ctlr_alloc(struct net_device *netdev); | |
67 | static int bnx2fc_ctlr_enabled(struct fcoe_ctlr_device *cdev); | |
68 | ||
853e2bd2 BG |
69 | static void bnx2fc_recv_frame(struct sk_buff *skb); |
70 | ||
aea71a02 | 71 | static void bnx2fc_start_disc(struct bnx2fc_interface *interface); |
853e2bd2 | 72 | static int bnx2fc_shost_config(struct fc_lport *lport, struct device *dev); |
853e2bd2 | 73 | static int bnx2fc_lport_config(struct fc_lport *lport); |
0eb43b4b | 74 | static int bnx2fc_em_config(struct fc_lport *lport, struct bnx2fc_hba *hba); |
853e2bd2 BG |
75 | static int bnx2fc_bind_adapter_devices(struct bnx2fc_hba *hba); |
76 | static void bnx2fc_unbind_adapter_devices(struct bnx2fc_hba *hba); | |
77 | static int bnx2fc_bind_pcidev(struct bnx2fc_hba *hba); | |
78 | static void bnx2fc_unbind_pcidev(struct bnx2fc_hba *hba); | |
aea71a02 | 79 | static struct fc_lport *bnx2fc_if_create(struct bnx2fc_interface *interface, |
853e2bd2 BG |
80 | struct device *parent, int npiv); |
81 | static void bnx2fc_destroy_work(struct work_struct *work); | |
82 | ||
83 | static struct bnx2fc_hba *bnx2fc_hba_lookup(struct net_device *phys_dev); | |
aea71a02 BPG |
84 | static struct bnx2fc_interface *bnx2fc_interface_lookup(struct net_device |
85 | *phys_dev); | |
abc49a93 | 86 | static inline void bnx2fc_interface_put(struct bnx2fc_interface *interface); |
853e2bd2 BG |
87 | static struct bnx2fc_hba *bnx2fc_find_hba_for_cnic(struct cnic_dev *cnic); |
88 | ||
89 | static int bnx2fc_fw_init(struct bnx2fc_hba *hba); | |
90 | static void bnx2fc_fw_destroy(struct bnx2fc_hba *hba); | |
91 | ||
92 | static void bnx2fc_port_shutdown(struct fc_lport *lport); | |
aea71a02 | 93 | static void bnx2fc_stop(struct bnx2fc_interface *interface); |
853e2bd2 BG |
94 | static int __init bnx2fc_mod_init(void); |
95 | static void __exit bnx2fc_mod_exit(void); | |
96 | ||
97 | unsigned int bnx2fc_debug_level; | |
98 | module_param_named(debug_logging, bnx2fc_debug_level, int, S_IRUGO|S_IWUSR); | |
99 | ||
100 | static int bnx2fc_cpu_callback(struct notifier_block *nfb, | |
101 | unsigned long action, void *hcpu); | |
102 | /* notification function for CPU hotplug events */ | |
103 | static struct notifier_block bnx2fc_cpu_notifier = { | |
104 | .notifier_call = bnx2fc_cpu_callback, | |
105 | }; | |
106 | ||
f72f6979 BPG |
107 | static inline struct net_device *bnx2fc_netdev(const struct fc_lport *lport) |
108 | { | |
109 | return ((struct bnx2fc_interface *) | |
110 | ((struct fcoe_port *)lport_priv(lport))->priv)->netdev; | |
111 | } | |
112 | ||
8d55e507 RL |
113 | static void bnx2fc_fcf_get_vlan_id(struct fcoe_fcf_device *fcf_dev) |
114 | { | |
115 | struct fcoe_ctlr_device *ctlr_dev = | |
116 | fcoe_fcf_dev_to_ctlr_dev(fcf_dev); | |
117 | struct fcoe_ctlr *ctlr = fcoe_ctlr_device_priv(ctlr_dev); | |
118 | struct bnx2fc_interface *fcoe = fcoe_ctlr_priv(ctlr); | |
119 | ||
120 | fcf_dev->vlan_id = fcoe->vlan_id; | |
121 | } | |
122 | ||
853e2bd2 BG |
123 | static void bnx2fc_clean_rx_queue(struct fc_lport *lp) |
124 | { | |
125 | struct fcoe_percpu_s *bg; | |
126 | struct fcoe_rcv_info *fr; | |
127 | struct sk_buff_head *list; | |
128 | struct sk_buff *skb, *next; | |
129 | struct sk_buff *head; | |
130 | ||
131 | bg = &bnx2fc_global; | |
132 | spin_lock_bh(&bg->fcoe_rx_list.lock); | |
133 | list = &bg->fcoe_rx_list; | |
134 | head = list->next; | |
135 | for (skb = head; skb != (struct sk_buff *)list; | |
136 | skb = next) { | |
137 | next = skb->next; | |
138 | fr = fcoe_dev_from_skb(skb); | |
139 | if (fr->fr_dev == lp) { | |
140 | __skb_unlink(skb, list); | |
141 | kfree_skb(skb); | |
142 | } | |
143 | } | |
144 | spin_unlock_bh(&bg->fcoe_rx_list.lock); | |
145 | } | |
146 | ||
147 | int bnx2fc_get_paged_crc_eof(struct sk_buff *skb, int tlen) | |
148 | { | |
149 | int rc; | |
150 | spin_lock(&bnx2fc_global_lock); | |
151 | rc = fcoe_get_paged_crc_eof(skb, tlen, &bnx2fc_global); | |
152 | spin_unlock(&bnx2fc_global_lock); | |
153 | ||
154 | return rc; | |
155 | } | |
156 | ||
157 | static void bnx2fc_abort_io(struct fc_lport *lport) | |
158 | { | |
159 | /* | |
160 | * This function is no-op for bnx2fc, but we do | |
161 | * not want to leave it as NULL either, as libfc | |
162 | * can call the default function which is | |
163 | * fc_fcp_abort_io. | |
164 | */ | |
165 | } | |
166 | ||
167 | static void bnx2fc_cleanup(struct fc_lport *lport) | |
168 | { | |
169 | struct fcoe_port *port = lport_priv(lport); | |
aea71a02 BPG |
170 | struct bnx2fc_interface *interface = port->priv; |
171 | struct bnx2fc_hba *hba = interface->hba; | |
853e2bd2 BG |
172 | struct bnx2fc_rport *tgt; |
173 | int i; | |
174 | ||
175 | BNX2FC_MISC_DBG("Entered %s\n", __func__); | |
176 | mutex_lock(&hba->hba_mutex); | |
177 | spin_lock_bh(&hba->hba_lock); | |
178 | for (i = 0; i < BNX2FC_NUM_MAX_SESS; i++) { | |
179 | tgt = hba->tgt_ofld_list[i]; | |
180 | if (tgt) { | |
181 | /* Cleanup IOs belonging to requested vport */ | |
182 | if (tgt->port == port) { | |
183 | spin_unlock_bh(&hba->hba_lock); | |
184 | BNX2FC_TGT_DBG(tgt, "flush/cleanup\n"); | |
185 | bnx2fc_flush_active_ios(tgt); | |
186 | spin_lock_bh(&hba->hba_lock); | |
187 | } | |
188 | } | |
189 | } | |
190 | spin_unlock_bh(&hba->hba_lock); | |
191 | mutex_unlock(&hba->hba_mutex); | |
192 | } | |
193 | ||
194 | static int bnx2fc_xmit_l2_frame(struct bnx2fc_rport *tgt, | |
195 | struct fc_frame *fp) | |
196 | { | |
197 | struct fc_rport_priv *rdata = tgt->rdata; | |
198 | struct fc_frame_header *fh; | |
199 | int rc = 0; | |
200 | ||
201 | fh = fc_frame_header_get(fp); | |
202 | BNX2FC_TGT_DBG(tgt, "Xmit L2 frame rport = 0x%x, oxid = 0x%x, " | |
203 | "r_ctl = 0x%x\n", rdata->ids.port_id, | |
204 | ntohs(fh->fh_ox_id), fh->fh_r_ctl); | |
205 | if ((fh->fh_type == FC_TYPE_ELS) && | |
206 | (fh->fh_r_ctl == FC_RCTL_ELS_REQ)) { | |
207 | ||
208 | switch (fc_frame_payload_op(fp)) { | |
209 | case ELS_ADISC: | |
210 | rc = bnx2fc_send_adisc(tgt, fp); | |
211 | break; | |
212 | case ELS_LOGO: | |
213 | rc = bnx2fc_send_logo(tgt, fp); | |
214 | break; | |
215 | case ELS_RLS: | |
216 | rc = bnx2fc_send_rls(tgt, fp); | |
217 | break; | |
218 | default: | |
219 | break; | |
220 | } | |
221 | } else if ((fh->fh_type == FC_TYPE_BLS) && | |
222 | (fh->fh_r_ctl == FC_RCTL_BA_ABTS)) | |
223 | BNX2FC_TGT_DBG(tgt, "ABTS frame\n"); | |
224 | else { | |
225 | BNX2FC_TGT_DBG(tgt, "Send L2 frame type 0x%x " | |
226 | "rctl 0x%x thru non-offload path\n", | |
227 | fh->fh_type, fh->fh_r_ctl); | |
228 | return -ENODEV; | |
229 | } | |
230 | if (rc) | |
231 | return -ENOMEM; | |
232 | else | |
233 | return 0; | |
234 | } | |
235 | ||
236 | /** | |
237 | * bnx2fc_xmit - bnx2fc's FCoE frame transmit function | |
238 | * | |
239 | * @lport: the associated local port | |
240 | * @fp: the fc_frame to be transmitted | |
241 | */ | |
242 | static int bnx2fc_xmit(struct fc_lport *lport, struct fc_frame *fp) | |
243 | { | |
244 | struct ethhdr *eh; | |
245 | struct fcoe_crc_eof *cp; | |
246 | struct sk_buff *skb; | |
247 | struct fc_frame_header *fh; | |
aea71a02 | 248 | struct bnx2fc_interface *interface; |
fd8f8902 | 249 | struct fcoe_ctlr *ctlr; |
aea71a02 | 250 | struct bnx2fc_hba *hba; |
853e2bd2 BG |
251 | struct fcoe_port *port; |
252 | struct fcoe_hdr *hp; | |
253 | struct bnx2fc_rport *tgt; | |
1bd49b48 | 254 | struct fc_stats *stats; |
853e2bd2 BG |
255 | u8 sof, eof; |
256 | u32 crc; | |
257 | unsigned int hlen, tlen, elen; | |
258 | int wlen, rc = 0; | |
259 | ||
260 | port = (struct fcoe_port *)lport_priv(lport); | |
aea71a02 | 261 | interface = port->priv; |
fd8f8902 | 262 | ctlr = bnx2fc_to_ctlr(interface); |
aea71a02 | 263 | hba = interface->hba; |
853e2bd2 BG |
264 | |
265 | fh = fc_frame_header_get(fp); | |
266 | ||
267 | skb = fp_skb(fp); | |
268 | if (!lport->link_up) { | |
269 | BNX2FC_HBA_DBG(lport, "bnx2fc_xmit link down\n"); | |
270 | kfree_skb(skb); | |
271 | return 0; | |
272 | } | |
273 | ||
274 | if (unlikely(fh->fh_r_ctl == FC_RCTL_ELS_REQ)) { | |
fd8f8902 | 275 | if (!ctlr->sel_fcf) { |
853e2bd2 BG |
276 | BNX2FC_HBA_DBG(lport, "FCF not selected yet!\n"); |
277 | kfree_skb(skb); | |
278 | return -EINVAL; | |
279 | } | |
fd8f8902 | 280 | if (fcoe_ctlr_els_send(ctlr, lport, skb)) |
853e2bd2 BG |
281 | return 0; |
282 | } | |
283 | ||
284 | sof = fr_sof(fp); | |
285 | eof = fr_eof(fp); | |
286 | ||
287 | /* | |
288 | * Snoop the frame header to check if the frame is for | |
289 | * an offloaded session | |
290 | */ | |
291 | /* | |
292 | * tgt_ofld_list access is synchronized using | |
293 | * both hba mutex and hba lock. Atleast hba mutex or | |
294 | * hba lock needs to be held for read access. | |
295 | */ | |
296 | ||
297 | spin_lock_bh(&hba->hba_lock); | |
298 | tgt = bnx2fc_tgt_lookup(port, ntoh24(fh->fh_d_id)); | |
299 | if (tgt && (test_bit(BNX2FC_FLAG_SESSION_READY, &tgt->flags))) { | |
300 | /* This frame is for offloaded session */ | |
301 | BNX2FC_HBA_DBG(lport, "xmit: Frame is for offloaded session " | |
302 | "port_id = 0x%x\n", ntoh24(fh->fh_d_id)); | |
303 | spin_unlock_bh(&hba->hba_lock); | |
304 | rc = bnx2fc_xmit_l2_frame(tgt, fp); | |
305 | if (rc != -ENODEV) { | |
306 | kfree_skb(skb); | |
307 | return rc; | |
308 | } | |
309 | } else { | |
310 | spin_unlock_bh(&hba->hba_lock); | |
311 | } | |
312 | ||
313 | elen = sizeof(struct ethhdr); | |
314 | hlen = sizeof(struct fcoe_hdr); | |
315 | tlen = sizeof(struct fcoe_crc_eof); | |
316 | wlen = (skb->len - tlen + sizeof(crc)) / FCOE_WORD_TO_BYTE; | |
317 | ||
318 | skb->ip_summed = CHECKSUM_NONE; | |
319 | crc = fcoe_fc_crc(fp); | |
320 | ||
321 | /* copy port crc and eof to the skb buff */ | |
322 | if (skb_is_nonlinear(skb)) { | |
323 | skb_frag_t *frag; | |
324 | if (bnx2fc_get_paged_crc_eof(skb, tlen)) { | |
325 | kfree_skb(skb); | |
326 | return -ENOMEM; | |
327 | } | |
328 | frag = &skb_shinfo(skb)->frags[skb_shinfo(skb)->nr_frags - 1]; | |
77dfce07 | 329 | cp = kmap_atomic(skb_frag_page(frag)) + frag->page_offset; |
853e2bd2 BG |
330 | } else { |
331 | cp = (struct fcoe_crc_eof *)skb_put(skb, tlen); | |
332 | } | |
333 | ||
334 | memset(cp, 0, sizeof(*cp)); | |
335 | cp->fcoe_eof = eof; | |
336 | cp->fcoe_crc32 = cpu_to_le32(~crc); | |
337 | if (skb_is_nonlinear(skb)) { | |
77dfce07 | 338 | kunmap_atomic(cp); |
853e2bd2 BG |
339 | cp = NULL; |
340 | } | |
341 | ||
342 | /* adjust skb network/transport offsets to match mac/fcoe/port */ | |
343 | skb_push(skb, elen + hlen); | |
344 | skb_reset_mac_header(skb); | |
345 | skb_reset_network_header(skb); | |
346 | skb->mac_len = elen; | |
347 | skb->protocol = htons(ETH_P_FCOE); | |
aea71a02 | 348 | skb->dev = interface->netdev; |
853e2bd2 BG |
349 | |
350 | /* fill up mac and fcoe headers */ | |
351 | eh = eth_hdr(skb); | |
352 | eh->h_proto = htons(ETH_P_FCOE); | |
fd8f8902 | 353 | if (ctlr->map_dest) |
853e2bd2 BG |
354 | fc_fcoe_set_mac(eh->h_dest, fh->fh_d_id); |
355 | else | |
356 | /* insert GW address */ | |
fd8f8902 | 357 | memcpy(eh->h_dest, ctlr->dest_addr, ETH_ALEN); |
853e2bd2 | 358 | |
fd8f8902 RL |
359 | if (unlikely(ctlr->flogi_oxid != FC_XID_UNKNOWN)) |
360 | memcpy(eh->h_source, ctlr->ctl_src_addr, ETH_ALEN); | |
853e2bd2 BG |
361 | else |
362 | memcpy(eh->h_source, port->data_src_addr, ETH_ALEN); | |
363 | ||
364 | hp = (struct fcoe_hdr *)(eh + 1); | |
365 | memset(hp, 0, sizeof(*hp)); | |
366 | if (FC_FCOE_VER) | |
367 | FC_FCOE_ENCAPS_VER(hp, FC_FCOE_VER); | |
368 | hp->fcoe_sof = sof; | |
369 | ||
370 | /* fcoe lso, mss is in max_payload which is non-zero for FCP data */ | |
371 | if (lport->seq_offload && fr_max_payload(fp)) { | |
372 | skb_shinfo(skb)->gso_type = SKB_GSO_FCOE; | |
373 | skb_shinfo(skb)->gso_size = fr_max_payload(fp); | |
374 | } else { | |
375 | skb_shinfo(skb)->gso_type = 0; | |
376 | skb_shinfo(skb)->gso_size = 0; | |
377 | } | |
378 | ||
379 | /*update tx stats */ | |
1bd49b48 | 380 | stats = per_cpu_ptr(lport->stats, get_cpu()); |
853e2bd2 BG |
381 | stats->TxFrames++; |
382 | stats->TxWords += wlen; | |
383 | put_cpu(); | |
384 | ||
385 | /* send down to lld */ | |
386 | fr_dev(fp) = lport; | |
387 | if (port->fcoe_pending_queue.qlen) | |
388 | fcoe_check_wait_queue(lport, skb); | |
389 | else if (fcoe_start_io(skb)) | |
390 | fcoe_check_wait_queue(lport, skb); | |
391 | ||
392 | return 0; | |
393 | } | |
394 | ||
395 | /** | |
396 | * bnx2fc_rcv - This is bnx2fc's receive function called by NET_RX_SOFTIRQ | |
397 | * | |
398 | * @skb: the receive socket buffer | |
399 | * @dev: associated net device | |
400 | * @ptype: context | |
401 | * @olddev: last device | |
402 | * | |
403 | * This function receives the packet and builds FC frame and passes it up | |
404 | */ | |
405 | static int bnx2fc_rcv(struct sk_buff *skb, struct net_device *dev, | |
406 | struct packet_type *ptype, struct net_device *olddev) | |
407 | { | |
408 | struct fc_lport *lport; | |
aea71a02 | 409 | struct bnx2fc_interface *interface; |
fd8f8902 | 410 | struct fcoe_ctlr *ctlr; |
853e2bd2 BG |
411 | struct fc_frame_header *fh; |
412 | struct fcoe_rcv_info *fr; | |
413 | struct fcoe_percpu_s *bg; | |
414 | unsigned short oxid; | |
415 | ||
aea71a02 BPG |
416 | interface = container_of(ptype, struct bnx2fc_interface, |
417 | fcoe_packet_type); | |
fd8f8902 RL |
418 | ctlr = bnx2fc_to_ctlr(interface); |
419 | lport = ctlr->lp; | |
853e2bd2 BG |
420 | |
421 | if (unlikely(lport == NULL)) { | |
b2a554ff | 422 | printk(KERN_ERR PFX "bnx2fc_rcv: lport is NULL\n"); |
853e2bd2 BG |
423 | goto err; |
424 | } | |
425 | ||
426 | if (unlikely(eth_hdr(skb)->h_proto != htons(ETH_P_FCOE))) { | |
b2a554ff | 427 | printk(KERN_ERR PFX "bnx2fc_rcv: Wrong FC type frame\n"); |
853e2bd2 BG |
428 | goto err; |
429 | } | |
430 | ||
431 | /* | |
432 | * Check for minimum frame length, and make sure required FCoE | |
433 | * and FC headers are pulled into the linear data area. | |
434 | */ | |
435 | if (unlikely((skb->len < FCOE_MIN_FRAME) || | |
436 | !pskb_may_pull(skb, FCOE_HEADER_LEN))) | |
437 | goto err; | |
438 | ||
439 | skb_set_transport_header(skb, sizeof(struct fcoe_hdr)); | |
440 | fh = (struct fc_frame_header *) skb_transport_header(skb); | |
441 | ||
442 | oxid = ntohs(fh->fh_ox_id); | |
443 | ||
444 | fr = fcoe_dev_from_skb(skb); | |
445 | fr->fr_dev = lport; | |
853e2bd2 BG |
446 | |
447 | bg = &bnx2fc_global; | |
fc05ab74 | 448 | spin_lock(&bg->fcoe_rx_list.lock); |
853e2bd2 BG |
449 | |
450 | __skb_queue_tail(&bg->fcoe_rx_list, skb); | |
451 | if (bg->fcoe_rx_list.qlen == 1) | |
452 | wake_up_process(bg->thread); | |
453 | ||
fc05ab74 | 454 | spin_unlock(&bg->fcoe_rx_list.lock); |
853e2bd2 BG |
455 | |
456 | return 0; | |
457 | err: | |
458 | kfree_skb(skb); | |
459 | return -1; | |
460 | } | |
461 | ||
462 | static int bnx2fc_l2_rcv_thread(void *arg) | |
463 | { | |
464 | struct fcoe_percpu_s *bg = arg; | |
465 | struct sk_buff *skb; | |
466 | ||
467 | set_user_nice(current, -20); | |
468 | set_current_state(TASK_INTERRUPTIBLE); | |
469 | while (!kthread_should_stop()) { | |
470 | schedule(); | |
853e2bd2 BG |
471 | spin_lock_bh(&bg->fcoe_rx_list.lock); |
472 | while ((skb = __skb_dequeue(&bg->fcoe_rx_list)) != NULL) { | |
473 | spin_unlock_bh(&bg->fcoe_rx_list.lock); | |
474 | bnx2fc_recv_frame(skb); | |
475 | spin_lock_bh(&bg->fcoe_rx_list.lock); | |
476 | } | |
fee78712 | 477 | __set_current_state(TASK_INTERRUPTIBLE); |
853e2bd2 | 478 | spin_unlock_bh(&bg->fcoe_rx_list.lock); |
853e2bd2 | 479 | } |
fee78712 | 480 | __set_current_state(TASK_RUNNING); |
853e2bd2 BG |
481 | return 0; |
482 | } | |
483 | ||
484 | ||
485 | static void bnx2fc_recv_frame(struct sk_buff *skb) | |
486 | { | |
487 | u32 fr_len; | |
488 | struct fc_lport *lport; | |
489 | struct fcoe_rcv_info *fr; | |
1bd49b48 | 490 | struct fc_stats *stats; |
853e2bd2 BG |
491 | struct fc_frame_header *fh; |
492 | struct fcoe_crc_eof crc_eof; | |
493 | struct fc_frame *fp; | |
494 | struct fc_lport *vn_port; | |
495 | struct fcoe_port *port; | |
496 | u8 *mac = NULL; | |
497 | u8 *dest_mac = NULL; | |
498 | struct fcoe_hdr *hp; | |
499 | ||
500 | fr = fcoe_dev_from_skb(skb); | |
501 | lport = fr->fr_dev; | |
502 | if (unlikely(lport == NULL)) { | |
b2a554ff | 503 | printk(KERN_ERR PFX "Invalid lport struct\n"); |
853e2bd2 BG |
504 | kfree_skb(skb); |
505 | return; | |
506 | } | |
507 | ||
508 | if (skb_is_nonlinear(skb)) | |
509 | skb_linearize(skb); | |
510 | mac = eth_hdr(skb)->h_source; | |
511 | dest_mac = eth_hdr(skb)->h_dest; | |
512 | ||
513 | /* Pull the header */ | |
514 | hp = (struct fcoe_hdr *) skb_network_header(skb); | |
515 | fh = (struct fc_frame_header *) skb_transport_header(skb); | |
516 | skb_pull(skb, sizeof(struct fcoe_hdr)); | |
517 | fr_len = skb->len - sizeof(struct fcoe_crc_eof); | |
518 | ||
1bd49b48 | 519 | stats = per_cpu_ptr(lport->stats, get_cpu()); |
853e2bd2 BG |
520 | stats->RxFrames++; |
521 | stats->RxWords += fr_len / FCOE_WORD_TO_BYTE; | |
522 | ||
523 | fp = (struct fc_frame *)skb; | |
524 | fc_frame_init(fp); | |
525 | fr_dev(fp) = lport; | |
526 | fr_sof(fp) = hp->fcoe_sof; | |
527 | if (skb_copy_bits(skb, fr_len, &crc_eof, sizeof(crc_eof))) { | |
528 | put_cpu(); | |
529 | kfree_skb(skb); | |
530 | return; | |
531 | } | |
532 | fr_eof(fp) = crc_eof.fcoe_eof; | |
533 | fr_crc(fp) = crc_eof.fcoe_crc32; | |
534 | if (pskb_trim(skb, fr_len)) { | |
535 | put_cpu(); | |
536 | kfree_skb(skb); | |
537 | return; | |
538 | } | |
539 | ||
540 | fh = fc_frame_header_get(fp); | |
541 | ||
542 | vn_port = fc_vport_id_lookup(lport, ntoh24(fh->fh_d_id)); | |
543 | if (vn_port) { | |
544 | port = lport_priv(vn_port); | |
545 | if (compare_ether_addr(port->data_src_addr, dest_mac) | |
546 | != 0) { | |
547 | BNX2FC_HBA_DBG(lport, "fpma mismatch\n"); | |
548 | put_cpu(); | |
549 | kfree_skb(skb); | |
550 | return; | |
551 | } | |
552 | } | |
553 | if (fh->fh_r_ctl == FC_RCTL_DD_SOL_DATA && | |
554 | fh->fh_type == FC_TYPE_FCP) { | |
555 | /* Drop FCP data. We dont this in L2 path */ | |
556 | put_cpu(); | |
557 | kfree_skb(skb); | |
558 | return; | |
559 | } | |
560 | if (fh->fh_r_ctl == FC_RCTL_ELS_REQ && | |
561 | fh->fh_type == FC_TYPE_ELS) { | |
562 | switch (fc_frame_payload_op(fp)) { | |
563 | case ELS_LOGO: | |
564 | if (ntoh24(fh->fh_s_id) == FC_FID_FLOGI) { | |
565 | /* drop non-FIP LOGO */ | |
566 | put_cpu(); | |
567 | kfree_skb(skb); | |
568 | return; | |
569 | } | |
570 | break; | |
571 | } | |
572 | } | |
3f8744d1 BPG |
573 | |
574 | if (fh->fh_r_ctl == FC_RCTL_BA_ABTS) { | |
575 | /* Drop incoming ABTS */ | |
576 | put_cpu(); | |
577 | kfree_skb(skb); | |
578 | return; | |
579 | } | |
580 | ||
853e2bd2 BG |
581 | if (le32_to_cpu(fr_crc(fp)) != |
582 | ~crc32(~0, skb->data, fr_len)) { | |
583 | if (stats->InvalidCRCCount < 5) | |
584 | printk(KERN_WARNING PFX "dropping frame with " | |
585 | "CRC error\n"); | |
586 | stats->InvalidCRCCount++; | |
587 | put_cpu(); | |
588 | kfree_skb(skb); | |
589 | return; | |
590 | } | |
591 | put_cpu(); | |
592 | fc_exch_recv(lport, fp); | |
593 | } | |
594 | ||
595 | /** | |
596 | * bnx2fc_percpu_io_thread - thread per cpu for ios | |
597 | * | |
598 | * @arg: ptr to bnx2fc_percpu_info structure | |
599 | */ | |
600 | int bnx2fc_percpu_io_thread(void *arg) | |
601 | { | |
602 | struct bnx2fc_percpu_s *p = arg; | |
603 | struct bnx2fc_work *work, *tmp; | |
604 | LIST_HEAD(work_list); | |
605 | ||
606 | set_user_nice(current, -20); | |
607 | set_current_state(TASK_INTERRUPTIBLE); | |
608 | while (!kthread_should_stop()) { | |
609 | schedule(); | |
853e2bd2 BG |
610 | spin_lock_bh(&p->fp_work_lock); |
611 | while (!list_empty(&p->work_list)) { | |
612 | list_splice_init(&p->work_list, &work_list); | |
613 | spin_unlock_bh(&p->fp_work_lock); | |
614 | ||
615 | list_for_each_entry_safe(work, tmp, &work_list, list) { | |
616 | list_del_init(&work->list); | |
617 | bnx2fc_process_cq_compl(work->tgt, work->wqe); | |
618 | kfree(work); | |
619 | } | |
620 | ||
621 | spin_lock_bh(&p->fp_work_lock); | |
622 | } | |
fee78712 | 623 | __set_current_state(TASK_INTERRUPTIBLE); |
853e2bd2 | 624 | spin_unlock_bh(&p->fp_work_lock); |
853e2bd2 | 625 | } |
fee78712 | 626 | __set_current_state(TASK_RUNNING); |
853e2bd2 BG |
627 | |
628 | return 0; | |
629 | } | |
630 | ||
631 | static struct fc_host_statistics *bnx2fc_get_host_stats(struct Scsi_Host *shost) | |
632 | { | |
633 | struct fc_host_statistics *bnx2fc_stats; | |
634 | struct fc_lport *lport = shost_priv(shost); | |
635 | struct fcoe_port *port = lport_priv(lport); | |
aea71a02 BPG |
636 | struct bnx2fc_interface *interface = port->priv; |
637 | struct bnx2fc_hba *hba = interface->hba; | |
853e2bd2 BG |
638 | struct fcoe_statistics_params *fw_stats; |
639 | int rc = 0; | |
640 | ||
641 | fw_stats = (struct fcoe_statistics_params *)hba->stats_buffer; | |
642 | if (!fw_stats) | |
643 | return NULL; | |
644 | ||
645 | bnx2fc_stats = fc_get_host_stats(shost); | |
646 | ||
647 | init_completion(&hba->stat_req_done); | |
648 | if (bnx2fc_send_stat_req(hba)) | |
649 | return bnx2fc_stats; | |
650 | rc = wait_for_completion_timeout(&hba->stat_req_done, (2 * HZ)); | |
651 | if (!rc) { | |
652 | BNX2FC_HBA_DBG(lport, "FW stat req timed out\n"); | |
653 | return bnx2fc_stats; | |
654 | } | |
f246fe2a BPG |
655 | BNX2FC_STATS(hba, rx_stat2, fc_crc_cnt); |
656 | bnx2fc_stats->invalid_crc_count += hba->bfw_stats.fc_crc_cnt; | |
657 | BNX2FC_STATS(hba, tx_stat, fcoe_tx_pkt_cnt); | |
658 | bnx2fc_stats->tx_frames += hba->bfw_stats.fcoe_tx_pkt_cnt; | |
659 | BNX2FC_STATS(hba, tx_stat, fcoe_tx_byte_cnt); | |
660 | bnx2fc_stats->tx_words += ((hba->bfw_stats.fcoe_tx_byte_cnt) / 4); | |
661 | BNX2FC_STATS(hba, rx_stat0, fcoe_rx_pkt_cnt); | |
662 | bnx2fc_stats->rx_frames += hba->bfw_stats.fcoe_rx_pkt_cnt; | |
663 | BNX2FC_STATS(hba, rx_stat0, fcoe_rx_byte_cnt); | |
664 | bnx2fc_stats->rx_words += ((hba->bfw_stats.fcoe_rx_byte_cnt) / 4); | |
853e2bd2 BG |
665 | |
666 | bnx2fc_stats->dumped_frames = 0; | |
667 | bnx2fc_stats->lip_count = 0; | |
668 | bnx2fc_stats->nos_count = 0; | |
669 | bnx2fc_stats->loss_of_sync_count = 0; | |
670 | bnx2fc_stats->loss_of_signal_count = 0; | |
671 | bnx2fc_stats->prim_seq_protocol_err_count = 0; | |
672 | ||
f246fe2a BPG |
673 | memcpy(&hba->prev_stats, hba->stats_buffer, |
674 | sizeof(struct fcoe_statistics_params)); | |
853e2bd2 BG |
675 | return bnx2fc_stats; |
676 | } | |
677 | ||
678 | static int bnx2fc_shost_config(struct fc_lport *lport, struct device *dev) | |
679 | { | |
680 | struct fcoe_port *port = lport_priv(lport); | |
aea71a02 | 681 | struct bnx2fc_interface *interface = port->priv; |
c13d2b6d | 682 | struct bnx2fc_hba *hba = interface->hba; |
853e2bd2 BG |
683 | struct Scsi_Host *shost = lport->host; |
684 | int rc = 0; | |
685 | ||
686 | shost->max_cmd_len = BNX2FC_MAX_CMD_LEN; | |
687 | shost->max_lun = BNX2FC_MAX_LUN; | |
688 | shost->max_id = BNX2FC_MAX_FCP_TGT; | |
689 | shost->max_channel = 0; | |
690 | if (lport->vport) | |
691 | shost->transportt = bnx2fc_vport_xport_template; | |
692 | else | |
693 | shost->transportt = bnx2fc_transport_template; | |
694 | ||
695 | /* Add the new host to SCSI-ml */ | |
696 | rc = scsi_add_host(lport->host, dev); | |
697 | if (rc) { | |
698 | printk(KERN_ERR PFX "Error on scsi_add_host\n"); | |
699 | return rc; | |
700 | } | |
701 | if (!lport->vport) | |
702 | fc_host_max_npiv_vports(lport->host) = USHRT_MAX; | |
c13d2b6d BPG |
703 | snprintf(fc_host_symbolic_name(lport->host), 256, |
704 | "%s (Broadcom %s) v%s over %s", | |
705 | BNX2FC_NAME, hba->chip_num, BNX2FC_VERSION, | |
aea71a02 | 706 | interface->netdev->name); |
853e2bd2 BG |
707 | |
708 | return 0; | |
709 | } | |
710 | ||
853e2bd2 BG |
711 | static int bnx2fc_link_ok(struct fc_lport *lport) |
712 | { | |
713 | struct fcoe_port *port = lport_priv(lport); | |
aea71a02 BPG |
714 | struct bnx2fc_interface *interface = port->priv; |
715 | struct bnx2fc_hba *hba = interface->hba; | |
853e2bd2 BG |
716 | struct net_device *dev = hba->phys_dev; |
717 | int rc = 0; | |
718 | ||
719 | if ((dev->flags & IFF_UP) && netif_carrier_ok(dev)) | |
720 | clear_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state); | |
721 | else { | |
722 | set_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state); | |
723 | rc = -1; | |
724 | } | |
725 | return rc; | |
726 | } | |
727 | ||
728 | /** | |
729 | * bnx2fc_get_link_state - get network link state | |
730 | * | |
731 | * @hba: adapter instance pointer | |
732 | * | |
733 | * updates adapter structure flag based on netdev state | |
734 | */ | |
735 | void bnx2fc_get_link_state(struct bnx2fc_hba *hba) | |
736 | { | |
aea71a02 | 737 | if (test_bit(__LINK_STATE_NOCARRIER, &hba->phys_dev->state)) |
853e2bd2 BG |
738 | set_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state); |
739 | else | |
740 | clear_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state); | |
741 | } | |
742 | ||
52439607 | 743 | static int bnx2fc_net_config(struct fc_lport *lport, struct net_device *netdev) |
853e2bd2 BG |
744 | { |
745 | struct bnx2fc_hba *hba; | |
aea71a02 | 746 | struct bnx2fc_interface *interface; |
fd8f8902 | 747 | struct fcoe_ctlr *ctlr; |
853e2bd2 BG |
748 | struct fcoe_port *port; |
749 | u64 wwnn, wwpn; | |
750 | ||
751 | port = lport_priv(lport); | |
aea71a02 | 752 | interface = port->priv; |
fd8f8902 | 753 | ctlr = bnx2fc_to_ctlr(interface); |
aea71a02 | 754 | hba = interface->hba; |
853e2bd2 BG |
755 | |
756 | /* require support for get_pauseparam ethtool op. */ | |
757 | if (!hba->phys_dev->ethtool_ops || | |
758 | !hba->phys_dev->ethtool_ops->get_pauseparam) | |
759 | return -EOPNOTSUPP; | |
760 | ||
1294bfe6 | 761 | if (fc_set_mfs(lport, BNX2FC_MFS)) |
853e2bd2 BG |
762 | return -EINVAL; |
763 | ||
764 | skb_queue_head_init(&port->fcoe_pending_queue); | |
765 | port->fcoe_pending_queue_active = 0; | |
766 | setup_timer(&port->timer, fcoe_queue_timer, (unsigned long) lport); | |
767 | ||
0e0f9cd6 | 768 | fcoe_link_speed_update(lport); |
853e2bd2 BG |
769 | |
770 | if (!lport->vport) { | |
52439607 | 771 | if (fcoe_get_wwn(netdev, &wwnn, NETDEV_FCOE_WWNN)) |
fd8f8902 | 772 | wwnn = fcoe_wwn_from_mac(ctlr->ctl_src_addr, |
52439607 | 773 | 1, 0); |
853e2bd2 BG |
774 | BNX2FC_HBA_DBG(lport, "WWNN = 0x%llx\n", wwnn); |
775 | fc_set_wwnn(lport, wwnn); | |
776 | ||
52439607 | 777 | if (fcoe_get_wwn(netdev, &wwpn, NETDEV_FCOE_WWPN)) |
fd8f8902 | 778 | wwpn = fcoe_wwn_from_mac(ctlr->ctl_src_addr, |
52439607 BPG |
779 | 2, 0); |
780 | ||
853e2bd2 BG |
781 | BNX2FC_HBA_DBG(lport, "WWPN = 0x%llx\n", wwpn); |
782 | fc_set_wwpn(lport, wwpn); | |
783 | } | |
784 | ||
785 | return 0; | |
786 | } | |
787 | ||
788 | static void bnx2fc_destroy_timer(unsigned long data) | |
789 | { | |
790 | struct bnx2fc_hba *hba = (struct bnx2fc_hba *)data; | |
791 | ||
cd703ae7 BPG |
792 | printk(KERN_ERR PFX "ERROR:bnx2fc_destroy_timer - " |
793 | "Destroy compl not received!!\n"); | |
aea71a02 | 794 | set_bit(BNX2FC_FLAG_DESTROY_CMPL, &hba->flags); |
853e2bd2 BG |
795 | wake_up_interruptible(&hba->destroy_wait); |
796 | } | |
797 | ||
798 | /** | |
799 | * bnx2fc_indicate_netevent - Generic netdev event handler | |
800 | * | |
801 | * @context: adapter structure pointer | |
802 | * @event: event type | |
415199f2 | 803 | * @vlan_id: vlan id - associated vlan id with this event |
853e2bd2 BG |
804 | * |
805 | * Handles NETDEV_UP, NETDEV_DOWN, NETDEV_GOING_DOWN,NETDEV_CHANGE and | |
abc49a93 | 806 | * NETDEV_CHANGE_MTU events. Handle NETDEV_UNREGISTER only for vlans. |
853e2bd2 | 807 | */ |
415199f2 MC |
808 | static void bnx2fc_indicate_netevent(void *context, unsigned long event, |
809 | u16 vlan_id) | |
853e2bd2 BG |
810 | { |
811 | struct bnx2fc_hba *hba = (struct bnx2fc_hba *)context; | |
6e89ea3f | 812 | struct fcoe_ctlr_device *cdev; |
aea71a02 | 813 | struct fc_lport *lport; |
853e2bd2 | 814 | struct fc_lport *vport; |
abc49a93 | 815 | struct bnx2fc_interface *interface, *tmp; |
fd8f8902 | 816 | struct fcoe_ctlr *ctlr; |
aea71a02 | 817 | int wait_for_upload = 0; |
853e2bd2 BG |
818 | u32 link_possible = 1; |
819 | ||
abc49a93 | 820 | if (vlan_id != 0 && event != NETDEV_UNREGISTER) |
415199f2 MC |
821 | return; |
822 | ||
853e2bd2 BG |
823 | switch (event) { |
824 | case NETDEV_UP: | |
853e2bd2 BG |
825 | if (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state)) |
826 | printk(KERN_ERR "indicate_netevent: "\ | |
aea71a02 | 827 | "hba is not UP!!\n"); |
853e2bd2 BG |
828 | break; |
829 | ||
830 | case NETDEV_DOWN: | |
853e2bd2 BG |
831 | clear_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state); |
832 | clear_bit(ADAPTER_STATE_UP, &hba->adapter_state); | |
833 | link_possible = 0; | |
834 | break; | |
835 | ||
836 | case NETDEV_GOING_DOWN: | |
853e2bd2 BG |
837 | set_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state); |
838 | link_possible = 0; | |
839 | break; | |
840 | ||
841 | case NETDEV_CHANGE: | |
853e2bd2 BG |
842 | break; |
843 | ||
abc49a93 BPG |
844 | case NETDEV_UNREGISTER: |
845 | if (!vlan_id) | |
846 | return; | |
847 | mutex_lock(&bnx2fc_dev_lock); | |
848 | list_for_each_entry_safe(interface, tmp, &if_list, list) { | |
26b2982f NNS |
849 | if (interface->hba == hba && |
850 | interface->vlan_id == (vlan_id & VLAN_VID_MASK)) | |
851 | __bnx2fc_destroy(interface); | |
abc49a93 BPG |
852 | } |
853 | mutex_unlock(&bnx2fc_dev_lock); | |
854 | return; | |
855 | ||
853e2bd2 | 856 | default: |
59e13d48 | 857 | printk(KERN_ERR PFX "Unknown netevent %ld", event); |
853e2bd2 BG |
858 | return; |
859 | } | |
860 | ||
aea71a02 BPG |
861 | mutex_lock(&bnx2fc_dev_lock); |
862 | list_for_each_entry(interface, &if_list, list) { | |
853e2bd2 | 863 | |
aea71a02 BPG |
864 | if (interface->hba != hba) |
865 | continue; | |
866 | ||
fd8f8902 RL |
867 | ctlr = bnx2fc_to_ctlr(interface); |
868 | lport = ctlr->lp; | |
aea71a02 BPG |
869 | BNX2FC_HBA_DBG(lport, "netevent handler - event=%s %ld\n", |
870 | interface->netdev->name, event); | |
871 | ||
0e0f9cd6 | 872 | fcoe_link_speed_update(lport); |
aea71a02 | 873 | |
6e89ea3f | 874 | cdev = fcoe_ctlr_to_ctlr_dev(ctlr); |
aea71a02 BPG |
875 | |
876 | if (link_possible && !bnx2fc_link_ok(lport)) { | |
6e89ea3f RL |
877 | switch (cdev->enabled) { |
878 | case FCOE_CTLR_DISABLED: | |
879 | pr_info("Link up while interface is disabled.\n"); | |
880 | break; | |
881 | case FCOE_CTLR_ENABLED: | |
882 | case FCOE_CTLR_UNUSED: | |
883 | /* Reset max recv frame size to default */ | |
884 | fc_set_mfs(lport, BNX2FC_MFS); | |
885 | /* | |
886 | * ctlr link up will only be handled during | |
887 | * enable to avoid sending discovery | |
888 | * solicitation on a stale vlan | |
889 | */ | |
890 | if (interface->enabled) | |
891 | fcoe_ctlr_link_up(ctlr); | |
892 | }; | |
fd8f8902 | 893 | } else if (fcoe_ctlr_link_down(ctlr)) { |
6e89ea3f RL |
894 | switch (cdev->enabled) { |
895 | case FCOE_CTLR_DISABLED: | |
896 | pr_info("Link down while interface is disabled.\n"); | |
897 | break; | |
898 | case FCOE_CTLR_ENABLED: | |
899 | case FCOE_CTLR_UNUSED: | |
900 | mutex_lock(&lport->lp_mutex); | |
901 | list_for_each_entry(vport, &lport->vports, list) | |
902 | fc_host_port_type(vport->host) = | |
903 | FC_PORTTYPE_UNKNOWN; | |
904 | mutex_unlock(&lport->lp_mutex); | |
905 | fc_host_port_type(lport->host) = | |
906 | FC_PORTTYPE_UNKNOWN; | |
907 | per_cpu_ptr(lport->stats, | |
908 | get_cpu())->LinkFailureCount++; | |
909 | put_cpu(); | |
910 | fcoe_clean_pending_queue(lport); | |
911 | wait_for_upload = 1; | |
912 | }; | |
aea71a02 BPG |
913 | } |
914 | } | |
915 | mutex_unlock(&bnx2fc_dev_lock); | |
853e2bd2 | 916 | |
aea71a02 BPG |
917 | if (wait_for_upload) { |
918 | clear_bit(ADAPTER_STATE_READY, &hba->adapter_state); | |
919 | init_waitqueue_head(&hba->shutdown_wait); | |
920 | BNX2FC_MISC_DBG("indicate_netevent " | |
921 | "num_ofld_sess = %d\n", | |
922 | hba->num_ofld_sess); | |
923 | hba->wait_for_link_down = 1; | |
924 | wait_event_interruptible(hba->shutdown_wait, | |
925 | (hba->num_ofld_sess == 0)); | |
926 | BNX2FC_MISC_DBG("wakeup - num_ofld_sess = %d\n", | |
853e2bd2 | 927 | hba->num_ofld_sess); |
aea71a02 | 928 | hba->wait_for_link_down = 0; |
853e2bd2 | 929 | |
aea71a02 BPG |
930 | if (signal_pending(current)) |
931 | flush_signals(current); | |
853e2bd2 BG |
932 | } |
933 | } | |
934 | ||
935 | static int bnx2fc_libfc_config(struct fc_lport *lport) | |
936 | { | |
937 | ||
938 | /* Set the function pointers set by bnx2fc driver */ | |
939 | memcpy(&lport->tt, &bnx2fc_libfc_fcn_templ, | |
940 | sizeof(struct libfc_function_template)); | |
941 | fc_elsct_init(lport); | |
942 | fc_exch_init(lport); | |
943 | fc_rport_init(lport); | |
0807619d RL |
944 | fc_disc_init(lport); |
945 | fc_disc_config(lport, lport); | |
853e2bd2 BG |
946 | return 0; |
947 | } | |
948 | ||
0eb43b4b | 949 | static int bnx2fc_em_config(struct fc_lport *lport, struct bnx2fc_hba *hba) |
853e2bd2 | 950 | { |
0eb43b4b | 951 | int fcoe_min_xid, fcoe_max_xid; |
7d742f65 | 952 | |
0eb43b4b | 953 | fcoe_min_xid = hba->max_xid + 1; |
7d742f65 | 954 | if (nr_cpu_ids <= 2) |
0eb43b4b | 955 | fcoe_max_xid = hba->max_xid + FCOE_XIDS_PER_CPU_OFFSET; |
7d742f65 | 956 | else |
0eb43b4b BPG |
957 | fcoe_max_xid = hba->max_xid + FCOE_MAX_XID_OFFSET; |
958 | if (!fc_exch_mgr_alloc(lport, FC_CLASS_3, fcoe_min_xid, | |
959 | fcoe_max_xid, NULL)) { | |
853e2bd2 BG |
960 | printk(KERN_ERR PFX "em_config:fc_exch_mgr_alloc failed\n"); |
961 | return -ENOMEM; | |
962 | } | |
963 | ||
853e2bd2 BG |
964 | return 0; |
965 | } | |
966 | ||
967 | static int bnx2fc_lport_config(struct fc_lport *lport) | |
968 | { | |
969 | lport->link_up = 0; | |
970 | lport->qfull = 0; | |
44c570b5 BPG |
971 | lport->max_retry_count = BNX2FC_MAX_RETRY_CNT; |
972 | lport->max_rport_retry_count = BNX2FC_MAX_RPORT_RETRY_CNT; | |
853e2bd2 BG |
973 | lport->e_d_tov = 2 * 1000; |
974 | lport->r_a_tov = 10 * 1000; | |
975 | ||
853e2bd2 BG |
976 | lport->service_params = (FCP_SPPF_INIT_FCN | FCP_SPPF_RD_XRDY_DIS | |
977 | FCP_SPPF_RETRY | FCP_SPPF_CONF_COMPL); | |
853e2bd2 BG |
978 | lport->does_npiv = 1; |
979 | ||
980 | memset(&lport->rnid_gen, 0, sizeof(struct fc_els_rnid_gen)); | |
981 | lport->rnid_gen.rnid_atype = BNX2FC_RNID_HBA; | |
982 | ||
983 | /* alloc stats structure */ | |
984 | if (fc_lport_init_stats(lport)) | |
985 | return -ENOMEM; | |
986 | ||
987 | /* Finish fc_lport configuration */ | |
988 | fc_lport_config(lport); | |
989 | ||
990 | return 0; | |
991 | } | |
992 | ||
993 | /** | |
994 | * bnx2fc_fip_recv - handle a received FIP frame. | |
995 | * | |
996 | * @skb: the received skb | |
997 | * @dev: associated &net_device | |
998 | * @ptype: the &packet_type structure which was used to register this handler. | |
999 | * @orig_dev: original receive &net_device, in case @ dev is a bond. | |
1000 | * | |
1001 | * Returns: 0 for success | |
1002 | */ | |
1003 | static int bnx2fc_fip_recv(struct sk_buff *skb, struct net_device *dev, | |
1004 | struct packet_type *ptype, | |
1005 | struct net_device *orig_dev) | |
1006 | { | |
aea71a02 | 1007 | struct bnx2fc_interface *interface; |
fd8f8902 | 1008 | struct fcoe_ctlr *ctlr; |
aea71a02 BPG |
1009 | interface = container_of(ptype, struct bnx2fc_interface, |
1010 | fip_packet_type); | |
fd8f8902 RL |
1011 | ctlr = bnx2fc_to_ctlr(interface); |
1012 | fcoe_ctlr_recv(ctlr, skb); | |
853e2bd2 BG |
1013 | return 0; |
1014 | } | |
1015 | ||
1016 | /** | |
1017 | * bnx2fc_update_src_mac - Update Ethernet MAC filters. | |
1018 | * | |
1019 | * @fip: FCoE controller. | |
1020 | * @old: Unicast MAC address to delete if the MAC is non-zero. | |
1021 | * @new: Unicast MAC address to add. | |
1022 | * | |
1023 | * Remove any previously-set unicast MAC filter. | |
1024 | * Add secondary FCoE MAC address filter for our OUI. | |
1025 | */ | |
1026 | static void bnx2fc_update_src_mac(struct fc_lport *lport, u8 *addr) | |
1027 | { | |
1028 | struct fcoe_port *port = lport_priv(lport); | |
1029 | ||
1030 | memcpy(port->data_src_addr, addr, ETH_ALEN); | |
1031 | } | |
1032 | ||
1033 | /** | |
1034 | * bnx2fc_get_src_mac - return the ethernet source address for an lport | |
1035 | * | |
1036 | * @lport: libfc port | |
1037 | */ | |
1038 | static u8 *bnx2fc_get_src_mac(struct fc_lport *lport) | |
1039 | { | |
1040 | struct fcoe_port *port; | |
1041 | ||
1042 | port = (struct fcoe_port *)lport_priv(lport); | |
1043 | return port->data_src_addr; | |
1044 | } | |
1045 | ||
1046 | /** | |
1047 | * bnx2fc_fip_send - send an Ethernet-encapsulated FIP frame. | |
1048 | * | |
1049 | * @fip: FCoE controller. | |
1050 | * @skb: FIP Packet. | |
1051 | */ | |
1052 | static void bnx2fc_fip_send(struct fcoe_ctlr *fip, struct sk_buff *skb) | |
1053 | { | |
1054 | skb->dev = bnx2fc_from_ctlr(fip)->netdev; | |
1055 | dev_queue_xmit(skb); | |
1056 | } | |
1057 | ||
1058 | static int bnx2fc_vport_create(struct fc_vport *vport, bool disabled) | |
1059 | { | |
1060 | struct Scsi_Host *shost = vport_to_shost(vport); | |
1061 | struct fc_lport *n_port = shost_priv(shost); | |
1062 | struct fcoe_port *port = lport_priv(n_port); | |
aea71a02 BPG |
1063 | struct bnx2fc_interface *interface = port->priv; |
1064 | struct net_device *netdev = interface->netdev; | |
853e2bd2 | 1065 | struct fc_lport *vn_port; |
861efc54 BPG |
1066 | int rc; |
1067 | char buf[32]; | |
1068 | ||
1069 | rc = fcoe_validate_vport_create(vport); | |
1070 | if (rc) { | |
1071 | fcoe_wwn_to_str(vport->port_name, buf, sizeof(buf)); | |
1072 | printk(KERN_ERR PFX "Failed to create vport, " | |
1073 | "WWPN (0x%s) already exists\n", | |
1074 | buf); | |
1075 | return rc; | |
1076 | } | |
853e2bd2 | 1077 | |
aea71a02 | 1078 | if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &interface->hba->flags)) { |
853e2bd2 | 1079 | printk(KERN_ERR PFX "vn ports cannot be created on" |
aea71a02 | 1080 | "this interface\n"); |
853e2bd2 BG |
1081 | return -EIO; |
1082 | } | |
4bc71cb9 | 1083 | rtnl_lock(); |
853e2bd2 | 1084 | mutex_lock(&bnx2fc_dev_lock); |
aea71a02 | 1085 | vn_port = bnx2fc_if_create(interface, &vport->dev, 1); |
853e2bd2 | 1086 | mutex_unlock(&bnx2fc_dev_lock); |
4bc71cb9 | 1087 | rtnl_unlock(); |
853e2bd2 BG |
1088 | |
1089 | if (IS_ERR(vn_port)) { | |
1090 | printk(KERN_ERR PFX "bnx2fc_vport_create (%s) failed\n", | |
1091 | netdev->name); | |
1092 | return -EIO; | |
1093 | } | |
1094 | ||
1095 | if (disabled) { | |
1096 | fc_vport_set_state(vport, FC_VPORT_DISABLED); | |
1097 | } else { | |
1098 | vn_port->boot_time = jiffies; | |
1099 | fc_lport_init(vn_port); | |
1100 | fc_fabric_login(vn_port); | |
1101 | fc_vport_setlink(vn_port); | |
1102 | } | |
1103 | return 0; | |
1104 | } | |
1105 | ||
abc49a93 BPG |
1106 | static void bnx2fc_free_vport(struct bnx2fc_hba *hba, struct fc_lport *lport) |
1107 | { | |
1108 | struct bnx2fc_lport *blport, *tmp; | |
1109 | ||
1110 | spin_lock_bh(&hba->hba_lock); | |
1111 | list_for_each_entry_safe(blport, tmp, &hba->vports, list) { | |
1112 | if (blport->lport == lport) { | |
1113 | list_del(&blport->list); | |
1114 | kfree(blport); | |
1115 | } | |
1116 | } | |
1117 | spin_unlock_bh(&hba->hba_lock); | |
1118 | } | |
1119 | ||
853e2bd2 BG |
1120 | static int bnx2fc_vport_destroy(struct fc_vport *vport) |
1121 | { | |
1122 | struct Scsi_Host *shost = vport_to_shost(vport); | |
1123 | struct fc_lport *n_port = shost_priv(shost); | |
1124 | struct fc_lport *vn_port = vport->dd_data; | |
1125 | struct fcoe_port *port = lport_priv(vn_port); | |
abc49a93 | 1126 | struct bnx2fc_interface *interface = port->priv; |
cdf54668 BPG |
1127 | struct fc_lport *v_port; |
1128 | bool found = false; | |
853e2bd2 BG |
1129 | |
1130 | mutex_lock(&n_port->lp_mutex); | |
cdf54668 BPG |
1131 | list_for_each_entry(v_port, &n_port->vports, list) |
1132 | if (v_port->vport == vport) { | |
1133 | found = true; | |
1134 | break; | |
1135 | } | |
1136 | ||
1137 | if (!found) { | |
1138 | mutex_unlock(&n_port->lp_mutex); | |
1139 | return -ENOENT; | |
1140 | } | |
853e2bd2 BG |
1141 | list_del(&vn_port->list); |
1142 | mutex_unlock(&n_port->lp_mutex); | |
abc49a93 BPG |
1143 | bnx2fc_free_vport(interface->hba, port->lport); |
1144 | bnx2fc_port_shutdown(port->lport); | |
1145 | bnx2fc_interface_put(interface); | |
853e2bd2 BG |
1146 | queue_work(bnx2fc_wq, &port->destroy_work); |
1147 | return 0; | |
1148 | } | |
1149 | ||
1150 | static int bnx2fc_vport_disable(struct fc_vport *vport, bool disable) | |
1151 | { | |
1152 | struct fc_lport *lport = vport->dd_data; | |
1153 | ||
1154 | if (disable) { | |
1155 | fc_vport_set_state(vport, FC_VPORT_DISABLED); | |
1156 | fc_fabric_logoff(lport); | |
1157 | } else { | |
1158 | lport->boot_time = jiffies; | |
1159 | fc_fabric_login(lport); | |
1160 | fc_vport_setlink(lport); | |
1161 | } | |
1162 | return 0; | |
1163 | } | |
1164 | ||
1165 | ||
776cebca | 1166 | static int bnx2fc_interface_setup(struct bnx2fc_interface *interface) |
853e2bd2 | 1167 | { |
aea71a02 BPG |
1168 | struct net_device *netdev = interface->netdev; |
1169 | struct net_device *physdev = interface->hba->phys_dev; | |
fd8f8902 | 1170 | struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface); |
853e2bd2 BG |
1171 | struct netdev_hw_addr *ha; |
1172 | int sel_san_mac = 0; | |
1173 | ||
853e2bd2 BG |
1174 | /* setup Source MAC Address */ |
1175 | rcu_read_lock(); | |
1176 | for_each_dev_addr(physdev, ha) { | |
1177 | BNX2FC_MISC_DBG("net_config: ha->type = %d, fip_mac = ", | |
1178 | ha->type); | |
1179 | printk(KERN_INFO "%2x:%2x:%2x:%2x:%2x:%2x\n", ha->addr[0], | |
1180 | ha->addr[1], ha->addr[2], ha->addr[3], | |
1181 | ha->addr[4], ha->addr[5]); | |
1182 | ||
1183 | if ((ha->type == NETDEV_HW_ADDR_T_SAN) && | |
1184 | (is_valid_ether_addr(ha->addr))) { | |
fd8f8902 | 1185 | memcpy(ctlr->ctl_src_addr, ha->addr, |
aea71a02 | 1186 | ETH_ALEN); |
853e2bd2 BG |
1187 | sel_san_mac = 1; |
1188 | BNX2FC_MISC_DBG("Found SAN MAC\n"); | |
1189 | } | |
1190 | } | |
1191 | rcu_read_unlock(); | |
1192 | ||
1193 | if (!sel_san_mac) | |
1194 | return -ENODEV; | |
1195 | ||
aea71a02 BPG |
1196 | interface->fip_packet_type.func = bnx2fc_fip_recv; |
1197 | interface->fip_packet_type.type = htons(ETH_P_FIP); | |
1198 | interface->fip_packet_type.dev = netdev; | |
1199 | dev_add_pack(&interface->fip_packet_type); | |
853e2bd2 | 1200 | |
aea71a02 BPG |
1201 | interface->fcoe_packet_type.func = bnx2fc_rcv; |
1202 | interface->fcoe_packet_type.type = __constant_htons(ETH_P_FCOE); | |
1203 | interface->fcoe_packet_type.dev = netdev; | |
1204 | dev_add_pack(&interface->fcoe_packet_type); | |
853e2bd2 BG |
1205 | |
1206 | return 0; | |
1207 | } | |
1208 | ||
1209 | static int bnx2fc_attach_transport(void) | |
1210 | { | |
1211 | bnx2fc_transport_template = | |
1212 | fc_attach_transport(&bnx2fc_transport_function); | |
1213 | ||
1214 | if (bnx2fc_transport_template == NULL) { | |
1215 | printk(KERN_ERR PFX "Failed to attach FC transport\n"); | |
1216 | return -ENODEV; | |
1217 | } | |
1218 | ||
1219 | bnx2fc_vport_xport_template = | |
1220 | fc_attach_transport(&bnx2fc_vport_xport_function); | |
1221 | if (bnx2fc_vport_xport_template == NULL) { | |
1222 | printk(KERN_ERR PFX | |
1223 | "Failed to attach FC transport for vport\n"); | |
1224 | fc_release_transport(bnx2fc_transport_template); | |
1225 | bnx2fc_transport_template = NULL; | |
1226 | return -ENODEV; | |
1227 | } | |
1228 | return 0; | |
1229 | } | |
1230 | static void bnx2fc_release_transport(void) | |
1231 | { | |
1232 | fc_release_transport(bnx2fc_transport_template); | |
1233 | fc_release_transport(bnx2fc_vport_xport_template); | |
1234 | bnx2fc_transport_template = NULL; | |
1235 | bnx2fc_vport_xport_template = NULL; | |
1236 | } | |
1237 | ||
1238 | static void bnx2fc_interface_release(struct kref *kref) | |
1239 | { | |
8d55e507 | 1240 | struct fcoe_ctlr_device *ctlr_dev; |
aea71a02 | 1241 | struct bnx2fc_interface *interface; |
fd8f8902 | 1242 | struct fcoe_ctlr *ctlr; |
853e2bd2 | 1243 | struct net_device *netdev; |
853e2bd2 | 1244 | |
aea71a02 | 1245 | interface = container_of(kref, struct bnx2fc_interface, kref); |
068bdce4 | 1246 | BNX2FC_MISC_DBG("Interface is being released\n"); |
853e2bd2 | 1247 | |
fd8f8902 | 1248 | ctlr = bnx2fc_to_ctlr(interface); |
8d55e507 | 1249 | ctlr_dev = fcoe_ctlr_to_ctlr_dev(ctlr); |
aea71a02 | 1250 | netdev = interface->netdev; |
853e2bd2 BG |
1251 | |
1252 | /* tear-down FIP controller */ | |
aea71a02 | 1253 | if (test_and_clear_bit(BNX2FC_CTLR_INIT_DONE, &interface->if_flags)) |
fd8f8902 | 1254 | fcoe_ctlr_destroy(ctlr); |
aea71a02 | 1255 | |
8d55e507 | 1256 | fcoe_ctlr_device_delete(ctlr_dev); |
853e2bd2 | 1257 | |
853e2bd2 BG |
1258 | dev_put(netdev); |
1259 | module_put(THIS_MODULE); | |
1260 | } | |
1261 | ||
aea71a02 | 1262 | static inline void bnx2fc_interface_get(struct bnx2fc_interface *interface) |
853e2bd2 | 1263 | { |
aea71a02 | 1264 | kref_get(&interface->kref); |
853e2bd2 BG |
1265 | } |
1266 | ||
aea71a02 | 1267 | static inline void bnx2fc_interface_put(struct bnx2fc_interface *interface) |
853e2bd2 | 1268 | { |
aea71a02 | 1269 | kref_put(&interface->kref, bnx2fc_interface_release); |
853e2bd2 | 1270 | } |
aea71a02 | 1271 | static void bnx2fc_hba_destroy(struct bnx2fc_hba *hba) |
853e2bd2 | 1272 | { |
aea71a02 BPG |
1273 | /* Free the command manager */ |
1274 | if (hba->cmd_mgr) { | |
1275 | bnx2fc_cmd_mgr_free(hba->cmd_mgr); | |
1276 | hba->cmd_mgr = NULL; | |
1277 | } | |
1278 | kfree(hba->tgt_ofld_list); | |
853e2bd2 BG |
1279 | bnx2fc_unbind_pcidev(hba); |
1280 | kfree(hba); | |
1281 | } | |
1282 | ||
1283 | /** | |
aea71a02 | 1284 | * bnx2fc_hba_create - create a new bnx2fc hba |
853e2bd2 BG |
1285 | * |
1286 | * @cnic: pointer to cnic device | |
1287 | * | |
aea71a02 BPG |
1288 | * Creates a new FCoE hba on the given device. |
1289 | * | |
853e2bd2 | 1290 | */ |
aea71a02 | 1291 | static struct bnx2fc_hba *bnx2fc_hba_create(struct cnic_dev *cnic) |
853e2bd2 BG |
1292 | { |
1293 | struct bnx2fc_hba *hba; | |
2e499d3c | 1294 | struct fcoe_capabilities *fcoe_cap; |
853e2bd2 BG |
1295 | int rc; |
1296 | ||
1297 | hba = kzalloc(sizeof(*hba), GFP_KERNEL); | |
1298 | if (!hba) { | |
1299 | printk(KERN_ERR PFX "Unable to allocate hba structure\n"); | |
1300 | return NULL; | |
1301 | } | |
1302 | spin_lock_init(&hba->hba_lock); | |
1303 | mutex_init(&hba->hba_mutex); | |
1304 | ||
1305 | hba->cnic = cnic; | |
0eb43b4b BPG |
1306 | |
1307 | hba->max_tasks = cnic->max_fcoe_exchanges; | |
1308 | hba->elstm_xids = (hba->max_tasks / 2); | |
1309 | hba->max_outstanding_cmds = hba->elstm_xids; | |
1310 | hba->max_xid = (hba->max_tasks - 1); | |
1311 | ||
853e2bd2 | 1312 | rc = bnx2fc_bind_pcidev(hba); |
aea71a02 BPG |
1313 | if (rc) { |
1314 | printk(KERN_ERR PFX "create_adapter: bind error\n"); | |
853e2bd2 | 1315 | goto bind_err; |
aea71a02 | 1316 | } |
853e2bd2 | 1317 | hba->phys_dev = cnic->netdev; |
aea71a02 BPG |
1318 | hba->next_conn_id = 0; |
1319 | ||
1320 | hba->tgt_ofld_list = | |
1321 | kzalloc(sizeof(struct bnx2fc_rport *) * BNX2FC_NUM_MAX_SESS, | |
1322 | GFP_KERNEL); | |
1323 | if (!hba->tgt_ofld_list) { | |
1324 | printk(KERN_ERR PFX "Unable to allocate tgt offload list\n"); | |
1325 | goto tgtofld_err; | |
1326 | } | |
1327 | ||
1328 | hba->num_ofld_sess = 0; | |
1329 | ||
0eb43b4b | 1330 | hba->cmd_mgr = bnx2fc_cmd_mgr_alloc(hba); |
aea71a02 BPG |
1331 | if (!hba->cmd_mgr) { |
1332 | printk(KERN_ERR PFX "em_config:bnx2fc_cmd_mgr_alloc failed\n"); | |
1333 | goto cmgr_err; | |
1334 | } | |
2e499d3c BW |
1335 | fcoe_cap = &hba->fcoe_cap; |
1336 | ||
1337 | fcoe_cap->capability1 = BNX2FC_TM_MAX_SQES << | |
1338 | FCOE_IOS_PER_CONNECTION_SHIFT; | |
1339 | fcoe_cap->capability1 |= BNX2FC_NUM_MAX_SESS << | |
1340 | FCOE_LOGINS_PER_PORT_SHIFT; | |
0eb43b4b | 1341 | fcoe_cap->capability2 = hba->max_outstanding_cmds << |
2e499d3c BW |
1342 | FCOE_NUMBER_OF_EXCHANGES_SHIFT; |
1343 | fcoe_cap->capability2 |= BNX2FC_MAX_NPIV << | |
1344 | FCOE_NPIV_WWN_PER_PORT_SHIFT; | |
1345 | fcoe_cap->capability3 = BNX2FC_NUM_MAX_SESS << | |
1346 | FCOE_TARGETS_SUPPORTED_SHIFT; | |
0eb43b4b | 1347 | fcoe_cap->capability3 |= hba->max_outstanding_cmds << |
2e499d3c BW |
1348 | FCOE_OUTSTANDING_COMMANDS_SHIFT; |
1349 | fcoe_cap->capability4 = FCOE_CAPABILITY4_STATEFUL; | |
853e2bd2 BG |
1350 | |
1351 | init_waitqueue_head(&hba->shutdown_wait); | |
1352 | init_waitqueue_head(&hba->destroy_wait); | |
aea71a02 | 1353 | INIT_LIST_HEAD(&hba->vports); |
853e2bd2 BG |
1354 | |
1355 | return hba; | |
aea71a02 BPG |
1356 | |
1357 | cmgr_err: | |
1358 | kfree(hba->tgt_ofld_list); | |
1359 | tgtofld_err: | |
1360 | bnx2fc_unbind_pcidev(hba); | |
853e2bd2 | 1361 | bind_err: |
853e2bd2 BG |
1362 | kfree(hba); |
1363 | return NULL; | |
1364 | } | |
1365 | ||
aea71a02 BPG |
1366 | struct bnx2fc_interface *bnx2fc_interface_create(struct bnx2fc_hba *hba, |
1367 | struct net_device *netdev, | |
1368 | enum fip_state fip_mode) | |
853e2bd2 | 1369 | { |
8d55e507 | 1370 | struct fcoe_ctlr_device *ctlr_dev; |
aea71a02 | 1371 | struct bnx2fc_interface *interface; |
fd8f8902 RL |
1372 | struct fcoe_ctlr *ctlr; |
1373 | int size; | |
853e2bd2 | 1374 | int rc = 0; |
853e2bd2 | 1375 | |
fd8f8902 | 1376 | size = (sizeof(*interface) + sizeof(struct fcoe_ctlr)); |
8d55e507 RL |
1377 | ctlr_dev = fcoe_ctlr_device_add(&netdev->dev, &bnx2fc_fcoe_sysfs_templ, |
1378 | size); | |
1379 | if (!ctlr_dev) { | |
aea71a02 BPG |
1380 | printk(KERN_ERR PFX "Unable to allocate interface structure\n"); |
1381 | return NULL; | |
1382 | } | |
8d55e507 | 1383 | ctlr = fcoe_ctlr_device_priv(ctlr_dev); |
fd8f8902 | 1384 | interface = fcoe_ctlr_priv(ctlr); |
853e2bd2 | 1385 | dev_hold(netdev); |
aea71a02 BPG |
1386 | kref_init(&interface->kref); |
1387 | interface->hba = hba; | |
1388 | interface->netdev = netdev; | |
853e2bd2 BG |
1389 | |
1390 | /* Initialize FIP */ | |
fd8f8902 RL |
1391 | fcoe_ctlr_init(ctlr, fip_mode); |
1392 | ctlr->send = bnx2fc_fip_send; | |
1393 | ctlr->update_mac = bnx2fc_update_src_mac; | |
1394 | ctlr->get_src_addr = bnx2fc_get_src_mac; | |
aea71a02 | 1395 | set_bit(BNX2FC_CTLR_INIT_DONE, &interface->if_flags); |
853e2bd2 | 1396 | |
776cebca | 1397 | rc = bnx2fc_interface_setup(interface); |
aea71a02 BPG |
1398 | if (!rc) |
1399 | return interface; | |
853e2bd2 | 1400 | |
fd8f8902 | 1401 | fcoe_ctlr_destroy(ctlr); |
853e2bd2 | 1402 | dev_put(netdev); |
8d55e507 | 1403 | fcoe_ctlr_device_delete(ctlr_dev); |
aea71a02 | 1404 | return NULL; |
853e2bd2 BG |
1405 | } |
1406 | ||
1407 | /** | |
1408 | * bnx2fc_if_create - Create FCoE instance on a given interface | |
1409 | * | |
aea71a02 | 1410 | * @interface: FCoE interface to create a local port on |
853e2bd2 BG |
1411 | * @parent: Device pointer to be the parent in sysfs for the SCSI host |
1412 | * @npiv: Indicates if the port is vport or not | |
1413 | * | |
1414 | * Creates a fc_lport instance and a Scsi_Host instance and configure them. | |
1415 | * | |
1416 | * Returns: Allocated fc_lport or an error pointer | |
1417 | */ | |
aea71a02 | 1418 | static struct fc_lport *bnx2fc_if_create(struct bnx2fc_interface *interface, |
853e2bd2 BG |
1419 | struct device *parent, int npiv) |
1420 | { | |
fd8f8902 | 1421 | struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface); |
134a4e27 | 1422 | struct fc_lport *lport, *n_port; |
853e2bd2 BG |
1423 | struct fcoe_port *port; |
1424 | struct Scsi_Host *shost; | |
1425 | struct fc_vport *vport = dev_to_vport(parent); | |
d36b3279 | 1426 | struct bnx2fc_lport *blport; |
0eb43b4b | 1427 | struct bnx2fc_hba *hba = interface->hba; |
853e2bd2 BG |
1428 | int rc = 0; |
1429 | ||
d36b3279 BPG |
1430 | blport = kzalloc(sizeof(struct bnx2fc_lport), GFP_KERNEL); |
1431 | if (!blport) { | |
fd8f8902 | 1432 | BNX2FC_HBA_DBG(ctlr->lp, "Unable to alloc blport\n"); |
d36b3279 BPG |
1433 | return NULL; |
1434 | } | |
1435 | ||
853e2bd2 | 1436 | /* Allocate Scsi_Host structure */ |
0eb43b4b | 1437 | bnx2fc_shost_template.can_queue = hba->max_outstanding_cmds; |
134a4e27 VD |
1438 | if (!npiv) |
1439 | lport = libfc_host_alloc(&bnx2fc_shost_template, sizeof(*port)); | |
1440 | else | |
1441 | lport = libfc_vport_create(vport, sizeof(*port)); | |
853e2bd2 BG |
1442 | |
1443 | if (!lport) { | |
1444 | printk(KERN_ERR PFX "could not allocate scsi host structure\n"); | |
d36b3279 | 1445 | goto free_blport; |
853e2bd2 BG |
1446 | } |
1447 | shost = lport->host; | |
1448 | port = lport_priv(lport); | |
1449 | port->lport = lport; | |
aea71a02 | 1450 | port->priv = interface; |
c3d7909b | 1451 | port->get_netdev = bnx2fc_netdev; |
853e2bd2 BG |
1452 | INIT_WORK(&port->destroy_work, bnx2fc_destroy_work); |
1453 | ||
1454 | /* Configure fcoe_port */ | |
1455 | rc = bnx2fc_lport_config(lport); | |
1456 | if (rc) | |
1457 | goto lp_config_err; | |
1458 | ||
1459 | if (npiv) { | |
853e2bd2 BG |
1460 | printk(KERN_ERR PFX "Setting vport names, 0x%llX 0x%llX\n", |
1461 | vport->node_name, vport->port_name); | |
1462 | fc_set_wwnn(lport, vport->node_name); | |
1463 | fc_set_wwpn(lport, vport->port_name); | |
1464 | } | |
1465 | /* Configure netdev and networking properties of the lport */ | |
52439607 | 1466 | rc = bnx2fc_net_config(lport, interface->netdev); |
853e2bd2 BG |
1467 | if (rc) { |
1468 | printk(KERN_ERR PFX "Error on bnx2fc_net_config\n"); | |
1469 | goto lp_config_err; | |
1470 | } | |
1471 | ||
1472 | rc = bnx2fc_shost_config(lport, parent); | |
1473 | if (rc) { | |
1474 | printk(KERN_ERR PFX "Couldnt configure shost for %s\n", | |
aea71a02 | 1475 | interface->netdev->name); |
853e2bd2 BG |
1476 | goto lp_config_err; |
1477 | } | |
1478 | ||
1479 | /* Initialize the libfc library */ | |
1480 | rc = bnx2fc_libfc_config(lport); | |
1481 | if (rc) { | |
1482 | printk(KERN_ERR PFX "Couldnt configure libfc\n"); | |
1483 | goto shost_err; | |
1484 | } | |
1485 | fc_host_port_type(lport->host) = FC_PORTTYPE_UNKNOWN; | |
1486 | ||
1487 | /* Allocate exchange manager */ | |
134a4e27 | 1488 | if (!npiv) |
0eb43b4b | 1489 | rc = bnx2fc_em_config(lport, hba); |
134a4e27 VD |
1490 | else { |
1491 | shost = vport_to_shost(vport); | |
1492 | n_port = shost_priv(shost); | |
1493 | rc = fc_exch_mgr_list_clone(n_port, lport); | |
1494 | } | |
1495 | ||
1496 | if (rc) { | |
1497 | printk(KERN_ERR PFX "Error on bnx2fc_em_config\n"); | |
1498 | goto shost_err; | |
853e2bd2 BG |
1499 | } |
1500 | ||
aea71a02 | 1501 | bnx2fc_interface_get(interface); |
d36b3279 BPG |
1502 | |
1503 | spin_lock_bh(&hba->hba_lock); | |
1504 | blport->lport = lport; | |
1505 | list_add_tail(&blport->list, &hba->vports); | |
1506 | spin_unlock_bh(&hba->hba_lock); | |
1507 | ||
853e2bd2 BG |
1508 | return lport; |
1509 | ||
1510 | shost_err: | |
1511 | scsi_remove_host(shost); | |
1512 | lp_config_err: | |
1513 | scsi_host_put(lport->host); | |
d36b3279 BPG |
1514 | free_blport: |
1515 | kfree(blport); | |
853e2bd2 BG |
1516 | return NULL; |
1517 | } | |
1518 | ||
013068fa | 1519 | static void bnx2fc_net_cleanup(struct bnx2fc_interface *interface) |
853e2bd2 BG |
1520 | { |
1521 | /* Dont listen for Ethernet packets anymore */ | |
aea71a02 BPG |
1522 | __dev_remove_pack(&interface->fcoe_packet_type); |
1523 | __dev_remove_pack(&interface->fip_packet_type); | |
853e2bd2 BG |
1524 | synchronize_net(); |
1525 | } | |
1526 | ||
776cebca | 1527 | static void bnx2fc_interface_cleanup(struct bnx2fc_interface *interface) |
853e2bd2 | 1528 | { |
fd8f8902 RL |
1529 | struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface); |
1530 | struct fc_lport *lport = ctlr->lp; | |
853e2bd2 | 1531 | struct fcoe_port *port = lport_priv(lport); |
9be17fc4 | 1532 | struct bnx2fc_hba *hba = interface->hba; |
853e2bd2 | 1533 | |
853e2bd2 BG |
1534 | /* Stop the transmit retry timer */ |
1535 | del_timer_sync(&port->timer); | |
1536 | ||
1537 | /* Free existing transmit skbs */ | |
1538 | fcoe_clean_pending_queue(lport); | |
1539 | ||
013068fa | 1540 | bnx2fc_net_cleanup(interface); |
9be17fc4 | 1541 | |
abc49a93 | 1542 | bnx2fc_free_vport(hba, lport); |
9be17fc4 BPG |
1543 | } |
1544 | ||
1545 | static void bnx2fc_if_destroy(struct fc_lport *lport) | |
1546 | { | |
1547 | ||
853e2bd2 BG |
1548 | /* Free queued packets for the receive thread */ |
1549 | bnx2fc_clean_rx_queue(lport); | |
1550 | ||
1551 | /* Detach from scsi-ml */ | |
1552 | fc_remove_host(lport->host); | |
1553 | scsi_remove_host(lport->host); | |
1554 | ||
1555 | /* | |
1556 | * Note that only the physical lport will have the exchange manager. | |
1557 | * for vports, this function is NOP | |
1558 | */ | |
1559 | fc_exch_mgr_free(lport); | |
1560 | ||
1561 | /* Free memory used by statistical counters */ | |
1562 | fc_lport_free_stats(lport); | |
1563 | ||
1564 | /* Release Scsi_Host */ | |
1565 | scsi_host_put(lport->host); | |
1566 | } | |
1567 | ||
eccdcd02 | 1568 | static void __bnx2fc_destroy(struct bnx2fc_interface *interface) |
abc49a93 | 1569 | { |
fd8f8902 RL |
1570 | struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface); |
1571 | struct fc_lport *lport = ctlr->lp; | |
0cbf32e1 | 1572 | struct fcoe_port *port = lport_priv(lport); |
abc49a93 BPG |
1573 | |
1574 | bnx2fc_interface_cleanup(interface); | |
1575 | bnx2fc_stop(interface); | |
abc49a93 | 1576 | list_del(&interface->list); |
abc49a93 | 1577 | bnx2fc_interface_put(interface); |
0cbf32e1 | 1578 | queue_work(bnx2fc_wq, &port->destroy_work); |
abc49a93 BPG |
1579 | } |
1580 | ||
853e2bd2 BG |
1581 | /** |
1582 | * bnx2fc_destroy - Destroy a bnx2fc FCoE interface | |
1583 | * | |
1584 | * @buffer: The name of the Ethernet interface to be destroyed | |
1585 | * @kp: The associated kernel parameter | |
1586 | * | |
1587 | * Called from sysfs. | |
1588 | * | |
1589 | * Returns: 0 for success | |
1590 | */ | |
1591 | static int bnx2fc_destroy(struct net_device *netdev) | |
1592 | { | |
aea71a02 | 1593 | struct bnx2fc_interface *interface = NULL; |
2a7b29c5 | 1594 | struct workqueue_struct *timer_work_queue; |
fd8f8902 | 1595 | struct fcoe_ctlr *ctlr; |
853e2bd2 BG |
1596 | int rc = 0; |
1597 | ||
6702ca1d | 1598 | rtnl_lock(); |
853e2bd2 | 1599 | mutex_lock(&bnx2fc_dev_lock); |
853e2bd2 | 1600 | |
aea71a02 | 1601 | interface = bnx2fc_interface_lookup(netdev); |
fd8f8902 RL |
1602 | ctlr = bnx2fc_to_ctlr(interface); |
1603 | if (!interface || !ctlr->lp) { | |
853e2bd2 | 1604 | rc = -ENODEV; |
aea71a02 | 1605 | printk(KERN_ERR PFX "bnx2fc_destroy: interface or lport not found\n"); |
853e2bd2 BG |
1606 | goto netdev_err; |
1607 | } | |
1608 | ||
2a7b29c5 | 1609 | timer_work_queue = interface->timer_work_queue; |
eccdcd02 | 1610 | __bnx2fc_destroy(interface); |
2a7b29c5 | 1611 | destroy_workqueue(timer_work_queue); |
853e2bd2 | 1612 | |
853e2bd2 BG |
1613 | netdev_err: |
1614 | mutex_unlock(&bnx2fc_dev_lock); | |
1615 | rtnl_unlock(); | |
1616 | return rc; | |
1617 | } | |
1618 | ||
1619 | static void bnx2fc_destroy_work(struct work_struct *work) | |
1620 | { | |
1621 | struct fcoe_port *port; | |
1622 | struct fc_lport *lport; | |
1623 | ||
1624 | port = container_of(work, struct fcoe_port, destroy_work); | |
1625 | lport = port->lport; | |
1626 | ||
1627 | BNX2FC_HBA_DBG(lport, "Entered bnx2fc_destroy_work\n"); | |
1628 | ||
9be17fc4 | 1629 | bnx2fc_if_destroy(lport); |
853e2bd2 BG |
1630 | } |
1631 | ||
1632 | static void bnx2fc_unbind_adapter_devices(struct bnx2fc_hba *hba) | |
1633 | { | |
1634 | bnx2fc_free_fw_resc(hba); | |
1635 | bnx2fc_free_task_ctx(hba); | |
1636 | } | |
1637 | ||
1638 | /** | |
1639 | * bnx2fc_bind_adapter_devices - binds bnx2fc adapter with the associated | |
1640 | * pci structure | |
1641 | * | |
1642 | * @hba: Adapter instance | |
1643 | */ | |
1644 | static int bnx2fc_bind_adapter_devices(struct bnx2fc_hba *hba) | |
1645 | { | |
1646 | if (bnx2fc_setup_task_ctx(hba)) | |
1647 | goto mem_err; | |
1648 | ||
1649 | if (bnx2fc_setup_fw_resc(hba)) | |
1650 | goto mem_err; | |
1651 | ||
1652 | return 0; | |
1653 | mem_err: | |
1654 | bnx2fc_unbind_adapter_devices(hba); | |
1655 | return -ENOMEM; | |
1656 | } | |
1657 | ||
1658 | static int bnx2fc_bind_pcidev(struct bnx2fc_hba *hba) | |
1659 | { | |
1660 | struct cnic_dev *cnic; | |
c13d2b6d | 1661 | struct pci_dev *pdev; |
853e2bd2 BG |
1662 | |
1663 | if (!hba->cnic) { | |
1664 | printk(KERN_ERR PFX "cnic is NULL\n"); | |
1665 | return -ENODEV; | |
1666 | } | |
1667 | cnic = hba->cnic; | |
c13d2b6d BPG |
1668 | pdev = hba->pcidev = cnic->pcidev; |
1669 | if (!hba->pcidev) | |
1670 | return -ENODEV; | |
853e2bd2 | 1671 | |
c13d2b6d BPG |
1672 | switch (pdev->device) { |
1673 | case PCI_DEVICE_ID_NX2_57710: | |
1674 | strncpy(hba->chip_num, "BCM57710", BCM_CHIP_LEN); | |
1675 | break; | |
1676 | case PCI_DEVICE_ID_NX2_57711: | |
1677 | strncpy(hba->chip_num, "BCM57711", BCM_CHIP_LEN); | |
1678 | break; | |
1679 | case PCI_DEVICE_ID_NX2_57712: | |
1680 | case PCI_DEVICE_ID_NX2_57712_MF: | |
1681 | case PCI_DEVICE_ID_NX2_57712_VF: | |
1682 | strncpy(hba->chip_num, "BCM57712", BCM_CHIP_LEN); | |
1683 | break; | |
1684 | case PCI_DEVICE_ID_NX2_57800: | |
1685 | case PCI_DEVICE_ID_NX2_57800_MF: | |
1686 | case PCI_DEVICE_ID_NX2_57800_VF: | |
1687 | strncpy(hba->chip_num, "BCM57800", BCM_CHIP_LEN); | |
1688 | break; | |
1689 | case PCI_DEVICE_ID_NX2_57810: | |
1690 | case PCI_DEVICE_ID_NX2_57810_MF: | |
1691 | case PCI_DEVICE_ID_NX2_57810_VF: | |
1692 | strncpy(hba->chip_num, "BCM57810", BCM_CHIP_LEN); | |
1693 | break; | |
1694 | case PCI_DEVICE_ID_NX2_57840: | |
1695 | case PCI_DEVICE_ID_NX2_57840_MF: | |
1696 | case PCI_DEVICE_ID_NX2_57840_VF: | |
1697 | case PCI_DEVICE_ID_NX2_57840_2_20: | |
1698 | case PCI_DEVICE_ID_NX2_57840_4_10: | |
1699 | strncpy(hba->chip_num, "BCM57840", BCM_CHIP_LEN); | |
1700 | break; | |
1701 | default: | |
1702 | pr_err(PFX "Unknown device id 0x%x\n", pdev->device); | |
1703 | break; | |
1704 | } | |
1705 | pci_dev_get(hba->pcidev); | |
853e2bd2 BG |
1706 | return 0; |
1707 | } | |
1708 | ||
1709 | static void bnx2fc_unbind_pcidev(struct bnx2fc_hba *hba) | |
1710 | { | |
c13d2b6d BPG |
1711 | if (hba->pcidev) { |
1712 | hba->chip_num[0] = '\0'; | |
853e2bd2 | 1713 | pci_dev_put(hba->pcidev); |
c13d2b6d | 1714 | } |
853e2bd2 BG |
1715 | hba->pcidev = NULL; |
1716 | } | |
1717 | ||
2e499d3c BW |
1718 | /** |
1719 | * bnx2fc_ulp_get_stats - cnic callback to populate FCoE stats | |
1720 | * | |
1721 | * @handle: transport handle pointing to adapter struture | |
1722 | */ | |
1723 | static int bnx2fc_ulp_get_stats(void *handle) | |
1724 | { | |
1725 | struct bnx2fc_hba *hba = handle; | |
1726 | struct cnic_dev *cnic; | |
1727 | struct fcoe_stats_info *stats_addr; | |
1728 | ||
1729 | if (!hba) | |
1730 | return -EINVAL; | |
1731 | ||
1732 | cnic = hba->cnic; | |
1733 | stats_addr = &cnic->stats_addr->fcoe_stat; | |
1734 | if (!stats_addr) | |
1735 | return -EINVAL; | |
1736 | ||
1737 | strncpy(stats_addr->version, BNX2FC_VERSION, | |
1738 | sizeof(stats_addr->version)); | |
1739 | stats_addr->txq_size = BNX2FC_SQ_WQES_MAX; | |
1740 | stats_addr->rxq_size = BNX2FC_CQ_WQES_MAX; | |
1741 | ||
1742 | return 0; | |
1743 | } | |
853e2bd2 BG |
1744 | |
1745 | ||
1746 | /** | |
1747 | * bnx2fc_ulp_start - cnic callback to initialize & start adapter instance | |
1748 | * | |
59e13d48 | 1749 | * @handle: transport handle pointing to adapter structure |
853e2bd2 BG |
1750 | * |
1751 | * This function maps adapter structure to pcidev structure and initiates | |
1752 | * firmware handshake to enable/initialize on-chip FCoE components. | |
1753 | * This bnx2fc - cnic interface api callback is used after following | |
1754 | * conditions are met - | |
1755 | * a) underlying network interface is up (marked by event NETDEV_UP | |
1756 | * from netdev | |
1757 | * b) bnx2fc adatper structure is registered. | |
1758 | */ | |
1759 | static void bnx2fc_ulp_start(void *handle) | |
1760 | { | |
1761 | struct bnx2fc_hba *hba = handle; | |
aea71a02 | 1762 | struct bnx2fc_interface *interface; |
fd8f8902 | 1763 | struct fcoe_ctlr *ctlr; |
aea71a02 | 1764 | struct fc_lport *lport; |
853e2bd2 | 1765 | |
853e2bd2 BG |
1766 | mutex_lock(&bnx2fc_dev_lock); |
1767 | ||
aea71a02 | 1768 | if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags)) |
853e2bd2 BG |
1769 | bnx2fc_fw_init(hba); |
1770 | ||
853e2bd2 BG |
1771 | BNX2FC_MISC_DBG("bnx2fc started.\n"); |
1772 | ||
aea71a02 BPG |
1773 | list_for_each_entry(interface, &if_list, list) { |
1774 | if (interface->hba == hba) { | |
fd8f8902 RL |
1775 | ctlr = bnx2fc_to_ctlr(interface); |
1776 | lport = ctlr->lp; | |
aea71a02 BPG |
1777 | /* Kick off Fabric discovery*/ |
1778 | printk(KERN_ERR PFX "ulp_init: start discovery\n"); | |
1779 | lport->tt.frame_send = bnx2fc_xmit; | |
1780 | bnx2fc_start_disc(interface); | |
1781 | } | |
853e2bd2 | 1782 | } |
aea71a02 BPG |
1783 | |
1784 | mutex_unlock(&bnx2fc_dev_lock); | |
853e2bd2 BG |
1785 | } |
1786 | ||
1787 | static void bnx2fc_port_shutdown(struct fc_lport *lport) | |
1788 | { | |
1789 | BNX2FC_MISC_DBG("Entered %s\n", __func__); | |
1790 | fc_fabric_logoff(lport); | |
1791 | fc_lport_destroy(lport); | |
1792 | } | |
1793 | ||
aea71a02 | 1794 | static void bnx2fc_stop(struct bnx2fc_interface *interface) |
853e2bd2 | 1795 | { |
fd8f8902 | 1796 | struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface); |
853e2bd2 BG |
1797 | struct fc_lport *lport; |
1798 | struct fc_lport *vport; | |
1799 | ||
aea71a02 BPG |
1800 | if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &interface->hba->flags)) |
1801 | return; | |
853e2bd2 | 1802 | |
fd8f8902 | 1803 | lport = ctlr->lp; |
aea71a02 BPG |
1804 | bnx2fc_port_shutdown(lport); |
1805 | ||
1806 | mutex_lock(&lport->lp_mutex); | |
1807 | list_for_each_entry(vport, &lport->vports, list) | |
1808 | fc_host_port_type(vport->host) = | |
1809 | FC_PORTTYPE_UNKNOWN; | |
1810 | mutex_unlock(&lport->lp_mutex); | |
1811 | fc_host_port_type(lport->host) = FC_PORTTYPE_UNKNOWN; | |
fd8f8902 | 1812 | fcoe_ctlr_link_down(ctlr); |
aea71a02 | 1813 | fcoe_clean_pending_queue(lport); |
853e2bd2 BG |
1814 | } |
1815 | ||
1816 | static int bnx2fc_fw_init(struct bnx2fc_hba *hba) | |
1817 | { | |
1818 | #define BNX2FC_INIT_POLL_TIME (1000 / HZ) | |
1819 | int rc = -1; | |
1820 | int i = HZ; | |
1821 | ||
1822 | rc = bnx2fc_bind_adapter_devices(hba); | |
1823 | if (rc) { | |
1824 | printk(KERN_ALERT PFX | |
1825 | "bnx2fc_bind_adapter_devices failed - rc = %d\n", rc); | |
1826 | goto err_out; | |
1827 | } | |
1828 | ||
1829 | rc = bnx2fc_send_fw_fcoe_init_msg(hba); | |
1830 | if (rc) { | |
1831 | printk(KERN_ALERT PFX | |
1832 | "bnx2fc_send_fw_fcoe_init_msg failed - rc = %d\n", rc); | |
1833 | goto err_unbind; | |
1834 | } | |
1835 | ||
1836 | /* | |
1837 | * Wait until the adapter init message is complete, and adapter | |
1838 | * state is UP. | |
1839 | */ | |
1840 | while (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state) && i--) | |
1841 | msleep(BNX2FC_INIT_POLL_TIME); | |
1842 | ||
1843 | if (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state)) { | |
1844 | printk(KERN_ERR PFX "bnx2fc_start: %s failed to initialize. " | |
1845 | "Ignoring...\n", | |
1846 | hba->cnic->netdev->name); | |
1847 | rc = -1; | |
1848 | goto err_unbind; | |
1849 | } | |
1850 | ||
1851 | ||
aea71a02 | 1852 | set_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags); |
853e2bd2 BG |
1853 | return 0; |
1854 | ||
1855 | err_unbind: | |
1856 | bnx2fc_unbind_adapter_devices(hba); | |
1857 | err_out: | |
1858 | return rc; | |
1859 | } | |
1860 | ||
1861 | static void bnx2fc_fw_destroy(struct bnx2fc_hba *hba) | |
1862 | { | |
aea71a02 | 1863 | if (test_and_clear_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags)) { |
853e2bd2 BG |
1864 | if (bnx2fc_send_fw_fcoe_destroy_msg(hba) == 0) { |
1865 | init_timer(&hba->destroy_timer); | |
1866 | hba->destroy_timer.expires = BNX2FC_FW_TIMEOUT + | |
1867 | jiffies; | |
1868 | hba->destroy_timer.function = bnx2fc_destroy_timer; | |
1869 | hba->destroy_timer.data = (unsigned long)hba; | |
1870 | add_timer(&hba->destroy_timer); | |
1871 | wait_event_interruptible(hba->destroy_wait, | |
aea71a02 BPG |
1872 | test_bit(BNX2FC_FLAG_DESTROY_CMPL, |
1873 | &hba->flags)); | |
cd703ae7 | 1874 | clear_bit(BNX2FC_FLAG_DESTROY_CMPL, &hba->flags); |
853e2bd2 BG |
1875 | /* This should never happen */ |
1876 | if (signal_pending(current)) | |
1877 | flush_signals(current); | |
1878 | ||
1879 | del_timer_sync(&hba->destroy_timer); | |
1880 | } | |
1881 | bnx2fc_unbind_adapter_devices(hba); | |
1882 | } | |
1883 | } | |
1884 | ||
1885 | /** | |
1886 | * bnx2fc_ulp_stop - cnic callback to shutdown adapter instance | |
1887 | * | |
1888 | * @handle: transport handle pointing to adapter structure | |
1889 | * | |
1890 | * Driver checks if adapter is already in shutdown mode, if not start | |
1891 | * the shutdown process. | |
1892 | */ | |
1893 | static void bnx2fc_ulp_stop(void *handle) | |
1894 | { | |
aea71a02 BPG |
1895 | struct bnx2fc_hba *hba = handle; |
1896 | struct bnx2fc_interface *interface; | |
853e2bd2 BG |
1897 | |
1898 | printk(KERN_ERR "ULP_STOP\n"); | |
1899 | ||
1900 | mutex_lock(&bnx2fc_dev_lock); | |
aea71a02 BPG |
1901 | if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags)) |
1902 | goto exit; | |
1903 | list_for_each_entry(interface, &if_list, list) { | |
1904 | if (interface->hba == hba) | |
1905 | bnx2fc_stop(interface); | |
1906 | } | |
1907 | BUG_ON(hba->num_ofld_sess != 0); | |
1908 | ||
1909 | mutex_lock(&hba->hba_mutex); | |
1910 | clear_bit(ADAPTER_STATE_UP, &hba->adapter_state); | |
1911 | clear_bit(ADAPTER_STATE_GOING_DOWN, | |
1912 | &hba->adapter_state); | |
1913 | ||
1914 | clear_bit(ADAPTER_STATE_READY, &hba->adapter_state); | |
1915 | mutex_unlock(&hba->hba_mutex); | |
1916 | ||
853e2bd2 | 1917 | bnx2fc_fw_destroy(hba); |
aea71a02 | 1918 | exit: |
853e2bd2 BG |
1919 | mutex_unlock(&bnx2fc_dev_lock); |
1920 | } | |
1921 | ||
aea71a02 | 1922 | static void bnx2fc_start_disc(struct bnx2fc_interface *interface) |
853e2bd2 | 1923 | { |
fd8f8902 | 1924 | struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface); |
853e2bd2 BG |
1925 | struct fc_lport *lport; |
1926 | int wait_cnt = 0; | |
1927 | ||
1928 | BNX2FC_MISC_DBG("Entered %s\n", __func__); | |
1929 | /* Kick off FIP/FLOGI */ | |
aea71a02 | 1930 | if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &interface->hba->flags)) { |
853e2bd2 BG |
1931 | printk(KERN_ERR PFX "Init not done yet\n"); |
1932 | return; | |
1933 | } | |
1934 | ||
fd8f8902 | 1935 | lport = ctlr->lp; |
853e2bd2 BG |
1936 | BNX2FC_HBA_DBG(lport, "calling fc_fabric_login\n"); |
1937 | ||
8a5badf1 | 1938 | if (!bnx2fc_link_ok(lport) && interface->enabled) { |
853e2bd2 | 1939 | BNX2FC_HBA_DBG(lport, "ctlr_link_up\n"); |
fd8f8902 | 1940 | fcoe_ctlr_link_up(ctlr); |
853e2bd2 | 1941 | fc_host_port_type(lport->host) = FC_PORTTYPE_NPORT; |
aea71a02 | 1942 | set_bit(ADAPTER_STATE_READY, &interface->hba->adapter_state); |
853e2bd2 BG |
1943 | } |
1944 | ||
1945 | /* wait for the FCF to be selected before issuing FLOGI */ | |
fd8f8902 | 1946 | while (!ctlr->sel_fcf) { |
853e2bd2 BG |
1947 | msleep(250); |
1948 | /* give up after 3 secs */ | |
1949 | if (++wait_cnt > 12) | |
1950 | break; | |
1951 | } | |
627e628f BPG |
1952 | |
1953 | /* Reset max receive frame size to default */ | |
1954 | if (fc_set_mfs(lport, BNX2FC_MFS)) | |
1955 | return; | |
1956 | ||
853e2bd2 BG |
1957 | fc_lport_init(lport); |
1958 | fc_fabric_login(lport); | |
1959 | } | |
1960 | ||
1961 | ||
1962 | /** | |
1963 | * bnx2fc_ulp_init - Initialize an adapter instance | |
1964 | * | |
1965 | * @dev : cnic device handle | |
1966 | * Called from cnic_register_driver() context to initialize all | |
1967 | * enumerated cnic devices. This routine allocates adapter structure | |
1968 | * and other device specific resources. | |
1969 | */ | |
1970 | static void bnx2fc_ulp_init(struct cnic_dev *dev) | |
1971 | { | |
1972 | struct bnx2fc_hba *hba; | |
1973 | int rc = 0; | |
1974 | ||
1975 | BNX2FC_MISC_DBG("Entered %s\n", __func__); | |
1976 | /* bnx2fc works only when bnx2x is loaded */ | |
aea71a02 BPG |
1977 | if (!test_bit(CNIC_F_BNX2X_CLASS, &dev->flags) || |
1978 | (dev->max_fcoe_conn == 0)) { | |
853e2bd2 | 1979 | printk(KERN_ERR PFX "bnx2fc FCoE not supported on %s," |
aea71a02 BPG |
1980 | " flags: %lx fcoe_conn: %d\n", |
1981 | dev->netdev->name, dev->flags, dev->max_fcoe_conn); | |
853e2bd2 BG |
1982 | return; |
1983 | } | |
1984 | ||
aea71a02 | 1985 | hba = bnx2fc_hba_create(dev); |
853e2bd2 BG |
1986 | if (!hba) { |
1987 | printk(KERN_ERR PFX "hba initialization failed\n"); | |
1988 | return; | |
1989 | } | |
1990 | ||
1991 | /* Add HBA to the adapter list */ | |
1992 | mutex_lock(&bnx2fc_dev_lock); | |
aea71a02 | 1993 | list_add_tail(&hba->list, &adapter_list); |
853e2bd2 BG |
1994 | adapter_count++; |
1995 | mutex_unlock(&bnx2fc_dev_lock); | |
1996 | ||
2e499d3c | 1997 | dev->fcoe_cap = &hba->fcoe_cap; |
853e2bd2 BG |
1998 | clear_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic); |
1999 | rc = dev->register_device(dev, CNIC_ULP_FCOE, | |
2000 | (void *) hba); | |
2001 | if (rc) | |
b2a554ff | 2002 | printk(KERN_ERR PFX "register_device failed, rc = %d\n", rc); |
853e2bd2 BG |
2003 | else |
2004 | set_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic); | |
2005 | } | |
2006 | ||
6e89ea3f RL |
2007 | /** |
2008 | * Deperecated: Use bnx2fc_enabled() | |
2009 | */ | |
853e2bd2 BG |
2010 | static int bnx2fc_disable(struct net_device *netdev) |
2011 | { | |
aea71a02 | 2012 | struct bnx2fc_interface *interface; |
fd8f8902 | 2013 | struct fcoe_ctlr *ctlr; |
853e2bd2 BG |
2014 | int rc = 0; |
2015 | ||
6702ca1d | 2016 | rtnl_lock(); |
853e2bd2 BG |
2017 | mutex_lock(&bnx2fc_dev_lock); |
2018 | ||
aea71a02 | 2019 | interface = bnx2fc_interface_lookup(netdev); |
fd8f8902 RL |
2020 | ctlr = bnx2fc_to_ctlr(interface); |
2021 | if (!interface || !ctlr->lp) { | |
853e2bd2 | 2022 | rc = -ENODEV; |
aea71a02 | 2023 | printk(KERN_ERR PFX "bnx2fc_disable: interface or lport not found\n"); |
853e2bd2 | 2024 | } else { |
8a5badf1 | 2025 | interface->enabled = false; |
fd8f8902 RL |
2026 | fcoe_ctlr_link_down(ctlr); |
2027 | fcoe_clean_pending_queue(ctlr->lp); | |
853e2bd2 BG |
2028 | } |
2029 | ||
853e2bd2 BG |
2030 | mutex_unlock(&bnx2fc_dev_lock); |
2031 | rtnl_unlock(); | |
2032 | return rc; | |
2033 | } | |
2034 | ||
6e89ea3f RL |
2035 | /** |
2036 | * Deprecated: Use bnx2fc_enabled() | |
2037 | */ | |
853e2bd2 BG |
2038 | static int bnx2fc_enable(struct net_device *netdev) |
2039 | { | |
aea71a02 | 2040 | struct bnx2fc_interface *interface; |
fd8f8902 | 2041 | struct fcoe_ctlr *ctlr; |
853e2bd2 BG |
2042 | int rc = 0; |
2043 | ||
6702ca1d | 2044 | rtnl_lock(); |
853e2bd2 BG |
2045 | mutex_lock(&bnx2fc_dev_lock); |
2046 | ||
aea71a02 | 2047 | interface = bnx2fc_interface_lookup(netdev); |
fd8f8902 RL |
2048 | ctlr = bnx2fc_to_ctlr(interface); |
2049 | if (!interface || !ctlr->lp) { | |
853e2bd2 | 2050 | rc = -ENODEV; |
aea71a02 | 2051 | printk(KERN_ERR PFX "bnx2fc_enable: interface or lport not found\n"); |
fd8f8902 RL |
2052 | } else if (!bnx2fc_link_ok(ctlr->lp)) { |
2053 | fcoe_ctlr_link_up(ctlr); | |
8a5badf1 BPG |
2054 | interface->enabled = true; |
2055 | } | |
853e2bd2 | 2056 | |
853e2bd2 BG |
2057 | mutex_unlock(&bnx2fc_dev_lock); |
2058 | rtnl_unlock(); | |
2059 | return rc; | |
2060 | } | |
2061 | ||
2062 | /** | |
6e89ea3f RL |
2063 | * bnx2fc_ctlr_enabled() - Enable or disable an FCoE Controller |
2064 | * @cdev: The FCoE Controller that is being enabled or disabled | |
853e2bd2 | 2065 | * |
6e89ea3f RL |
2066 | * fcoe_sysfs will ensure that the state of 'enabled' has |
2067 | * changed, so no checking is necessary here. This routine simply | |
2068 | * calls fcoe_enable or fcoe_disable, both of which are deprecated. | |
2069 | * When those routines are removed the functionality can be merged | |
2070 | * here. | |
2071 | */ | |
2072 | static int bnx2fc_ctlr_enabled(struct fcoe_ctlr_device *cdev) | |
2073 | { | |
2074 | struct fcoe_ctlr *ctlr = fcoe_ctlr_device_priv(cdev); | |
2075 | struct fc_lport *lport = ctlr->lp; | |
2076 | struct net_device *netdev = bnx2fc_netdev(lport); | |
2077 | ||
2078 | switch (cdev->enabled) { | |
2079 | case FCOE_CTLR_ENABLED: | |
2080 | return bnx2fc_enable(netdev); | |
2081 | case FCOE_CTLR_DISABLED: | |
2082 | return bnx2fc_disable(netdev); | |
2083 | case FCOE_CTLR_UNUSED: | |
2084 | default: | |
2085 | return -ENOTSUPP; | |
2086 | }; | |
2087 | } | |
2088 | ||
2089 | enum bnx2fc_create_link_state { | |
2090 | BNX2FC_CREATE_LINK_DOWN, | |
2091 | BNX2FC_CREATE_LINK_UP, | |
2092 | }; | |
2093 | ||
2094 | /** | |
2095 | * _bnx2fc_create() - Create bnx2fc FCoE interface | |
2096 | * @netdev : The net_device object the Ethernet interface to create on | |
2097 | * @fip_mode: The FIP mode for this creation | |
2098 | * @link_state: The ctlr link state on creation | |
853e2bd2 | 2099 | * |
6e89ea3f RL |
2100 | * Called from either the libfcoe 'create' module parameter |
2101 | * via fcoe_create or from fcoe_syfs's ctlr_create file. | |
853e2bd2 | 2102 | * |
6e89ea3f RL |
2103 | * libfcoe's 'create' module parameter is deprecated so some |
2104 | * consolidation of code can be done when that interface is | |
2105 | * removed. | |
853e2bd2 BG |
2106 | * |
2107 | * Returns: 0 for success | |
2108 | */ | |
6e89ea3f RL |
2109 | static int _bnx2fc_create(struct net_device *netdev, |
2110 | enum fip_state fip_mode, | |
2111 | enum bnx2fc_create_link_state link_state) | |
853e2bd2 | 2112 | { |
6e89ea3f | 2113 | struct fcoe_ctlr_device *cdev; |
fd8f8902 | 2114 | struct fcoe_ctlr *ctlr; |
aea71a02 | 2115 | struct bnx2fc_interface *interface; |
853e2bd2 | 2116 | struct bnx2fc_hba *hba; |
7adc5a37 | 2117 | struct net_device *phys_dev = netdev; |
853e2bd2 BG |
2118 | struct fc_lport *lport; |
2119 | struct ethtool_drvinfo drvinfo; | |
2120 | int rc = 0; | |
7adc5a37 | 2121 | int vlan_id = 0; |
853e2bd2 BG |
2122 | |
2123 | BNX2FC_MISC_DBG("Entered bnx2fc_create\n"); | |
2124 | if (fip_mode != FIP_MODE_FABRIC) { | |
2125 | printk(KERN_ERR "fip mode not FABRIC\n"); | |
2126 | return -EIO; | |
2127 | } | |
2128 | ||
6702ca1d NS |
2129 | rtnl_lock(); |
2130 | ||
853e2bd2 BG |
2131 | mutex_lock(&bnx2fc_dev_lock); |
2132 | ||
853e2bd2 BG |
2133 | if (!try_module_get(THIS_MODULE)) { |
2134 | rc = -EINVAL; | |
2135 | goto mod_err; | |
2136 | } | |
2137 | ||
2138 | /* obtain physical netdev */ | |
7adc5a37 | 2139 | if (netdev->priv_flags & IFF_802_1Q_VLAN) |
853e2bd2 | 2140 | phys_dev = vlan_dev_real_dev(netdev); |
7adc5a37 | 2141 | |
853e2bd2 BG |
2142 | /* verify if the physical device is a netxtreme2 device */ |
2143 | if (phys_dev->ethtool_ops && phys_dev->ethtool_ops->get_drvinfo) { | |
2144 | memset(&drvinfo, 0, sizeof(drvinfo)); | |
2145 | phys_dev->ethtool_ops->get_drvinfo(phys_dev, &drvinfo); | |
aea71a02 | 2146 | if (strncmp(drvinfo.driver, "bnx2x", strlen("bnx2x"))) { |
853e2bd2 BG |
2147 | printk(KERN_ERR PFX "Not a netxtreme2 device\n"); |
2148 | rc = -EINVAL; | |
2149 | goto netdev_err; | |
2150 | } | |
2151 | } else { | |
2152 | printk(KERN_ERR PFX "unable to obtain drv_info\n"); | |
2153 | rc = -EINVAL; | |
2154 | goto netdev_err; | |
2155 | } | |
2156 | ||
aea71a02 | 2157 | /* obtain interface and initialize rest of the structure */ |
853e2bd2 BG |
2158 | hba = bnx2fc_hba_lookup(phys_dev); |
2159 | if (!hba) { | |
2160 | rc = -ENODEV; | |
2161 | printk(KERN_ERR PFX "bnx2fc_create: hba not found\n"); | |
2162 | goto netdev_err; | |
2163 | } | |
2164 | ||
aea71a02 | 2165 | if (bnx2fc_interface_lookup(netdev)) { |
853e2bd2 BG |
2166 | rc = -EEXIST; |
2167 | goto netdev_err; | |
2168 | } | |
2169 | ||
aea71a02 BPG |
2170 | interface = bnx2fc_interface_create(hba, netdev, fip_mode); |
2171 | if (!interface) { | |
2172 | printk(KERN_ERR PFX "bnx2fc_interface_create failed\n"); | |
853e2bd2 BG |
2173 | goto ifput_err; |
2174 | } | |
2175 | ||
7adc5a37 BPG |
2176 | if (netdev->priv_flags & IFF_802_1Q_VLAN) { |
2177 | vlan_id = vlan_dev_vlan_id(netdev); | |
2178 | interface->vlan_enabled = 1; | |
2179 | } | |
2180 | ||
fd8f8902 | 2181 | ctlr = bnx2fc_to_ctlr(interface); |
01bdcb62 | 2182 | cdev = fcoe_ctlr_to_ctlr_dev(ctlr); |
aea71a02 | 2183 | interface->vlan_id = vlan_id; |
aea71a02 BPG |
2184 | |
2185 | interface->timer_work_queue = | |
853e2bd2 | 2186 | create_singlethread_workqueue("bnx2fc_timer_wq"); |
aea71a02 | 2187 | if (!interface->timer_work_queue) { |
853e2bd2 BG |
2188 | printk(KERN_ERR PFX "ulp_init could not create timer_wq\n"); |
2189 | rc = -EINVAL; | |
2190 | goto ifput_err; | |
2191 | } | |
2192 | ||
01bdcb62 | 2193 | lport = bnx2fc_if_create(interface, &cdev->dev, 0); |
853e2bd2 BG |
2194 | if (!lport) { |
2195 | printk(KERN_ERR PFX "Failed to create interface (%s)\n", | |
2196 | netdev->name); | |
853e2bd2 BG |
2197 | rc = -EINVAL; |
2198 | goto if_create_err; | |
2199 | } | |
2200 | ||
aea71a02 BPG |
2201 | /* Add interface to if_list */ |
2202 | list_add_tail(&interface->list, &if_list); | |
2203 | ||
853e2bd2 BG |
2204 | lport->boot_time = jiffies; |
2205 | ||
2206 | /* Make this master N_port */ | |
fd8f8902 | 2207 | ctlr->lp = lport; |
853e2bd2 | 2208 | |
6e89ea3f RL |
2209 | if (link_state == BNX2FC_CREATE_LINK_UP) |
2210 | cdev->enabled = FCOE_CTLR_ENABLED; | |
2211 | else | |
2212 | cdev->enabled = FCOE_CTLR_DISABLED; | |
2213 | ||
2214 | if (link_state == BNX2FC_CREATE_LINK_UP && | |
2215 | !bnx2fc_link_ok(lport)) { | |
fd8f8902 | 2216 | fcoe_ctlr_link_up(ctlr); |
8a5badf1 BPG |
2217 | fc_host_port_type(lport->host) = FC_PORTTYPE_NPORT; |
2218 | set_bit(ADAPTER_STATE_READY, &interface->hba->adapter_state); | |
2219 | } | |
2220 | ||
aea71a02 BPG |
2221 | BNX2FC_HBA_DBG(lport, "create: START DISC\n"); |
2222 | bnx2fc_start_disc(interface); | |
6e89ea3f RL |
2223 | |
2224 | if (link_state == BNX2FC_CREATE_LINK_UP) | |
2225 | interface->enabled = true; | |
2226 | ||
853e2bd2 BG |
2227 | /* |
2228 | * Release from kref_init in bnx2fc_interface_setup, on success | |
2229 | * lport should be holding a reference taken in bnx2fc_if_create | |
2230 | */ | |
aea71a02 | 2231 | bnx2fc_interface_put(interface); |
853e2bd2 BG |
2232 | /* put netdev that was held while calling dev_get_by_name */ |
2233 | mutex_unlock(&bnx2fc_dev_lock); | |
2234 | rtnl_unlock(); | |
2235 | return 0; | |
2236 | ||
2237 | if_create_err: | |
aea71a02 | 2238 | destroy_workqueue(interface->timer_work_queue); |
853e2bd2 | 2239 | ifput_err: |
013068fa | 2240 | bnx2fc_net_cleanup(interface); |
aea71a02 | 2241 | bnx2fc_interface_put(interface); |
7d742f65 | 2242 | goto mod_err; |
853e2bd2 BG |
2243 | netdev_err: |
2244 | module_put(THIS_MODULE); | |
2245 | mod_err: | |
2246 | mutex_unlock(&bnx2fc_dev_lock); | |
2247 | rtnl_unlock(); | |
2248 | return rc; | |
2249 | } | |
2250 | ||
6e89ea3f RL |
2251 | /** |
2252 | * bnx2fc_create() - Create a bnx2fc interface | |
2253 | * @netdev : The net_device object the Ethernet interface to create on | |
2254 | * @fip_mode: The FIP mode for this creation | |
2255 | * | |
2256 | * Called from fcoe transport | |
2257 | * | |
2258 | * Returns: 0 for success | |
2259 | */ | |
2260 | static int bnx2fc_create(struct net_device *netdev, enum fip_state fip_mode) | |
2261 | { | |
2262 | return _bnx2fc_create(netdev, fip_mode, BNX2FC_CREATE_LINK_UP); | |
2263 | } | |
2264 | ||
2265 | /** | |
2266 | * bnx2fc_ctlr_alloc() - Allocate a bnx2fc interface from fcoe_sysfs | |
2267 | * @netdev: The net_device to be used by the allocated FCoE Controller | |
2268 | * | |
2269 | * This routine is called from fcoe_sysfs. It will start the fcoe_ctlr | |
2270 | * in a link_down state. The allows the user an opportunity to configure | |
2271 | * the FCoE Controller from sysfs before enabling the FCoE Controller. | |
2272 | * | |
2273 | * Creating in with this routine starts the FCoE Controller in Fabric | |
2274 | * mode. The user can change to VN2VN or another mode before enabling. | |
2275 | */ | |
2276 | static int bnx2fc_ctlr_alloc(struct net_device *netdev) | |
2277 | { | |
2278 | return _bnx2fc_create(netdev, FIP_MODE_FABRIC, | |
2279 | BNX2FC_CREATE_LINK_DOWN); | |
2280 | } | |
2281 | ||
853e2bd2 | 2282 | /** |
aea71a02 | 2283 | * bnx2fc_find_hba_for_cnic - maps cnic instance to bnx2fc hba instance |
853e2bd2 BG |
2284 | * |
2285 | * @cnic: Pointer to cnic device instance | |
2286 | * | |
2287 | **/ | |
2288 | static struct bnx2fc_hba *bnx2fc_find_hba_for_cnic(struct cnic_dev *cnic) | |
2289 | { | |
853e2bd2 BG |
2290 | struct bnx2fc_hba *hba; |
2291 | ||
2292 | /* Called with bnx2fc_dev_lock held */ | |
d71fb3bd | 2293 | list_for_each_entry(hba, &adapter_list, list) { |
853e2bd2 BG |
2294 | if (hba->cnic == cnic) |
2295 | return hba; | |
2296 | } | |
2297 | return NULL; | |
2298 | } | |
2299 | ||
aea71a02 BPG |
2300 | static struct bnx2fc_interface *bnx2fc_interface_lookup(struct net_device |
2301 | *netdev) | |
2302 | { | |
2303 | struct bnx2fc_interface *interface; | |
2304 | ||
2305 | /* Called with bnx2fc_dev_lock held */ | |
2306 | list_for_each_entry(interface, &if_list, list) { | |
2307 | if (interface->netdev == netdev) | |
2308 | return interface; | |
2309 | } | |
2310 | return NULL; | |
2311 | } | |
2312 | ||
2313 | static struct bnx2fc_hba *bnx2fc_hba_lookup(struct net_device | |
2314 | *phys_dev) | |
853e2bd2 | 2315 | { |
853e2bd2 BG |
2316 | struct bnx2fc_hba *hba; |
2317 | ||
2318 | /* Called with bnx2fc_dev_lock held */ | |
aea71a02 | 2319 | list_for_each_entry(hba, &adapter_list, list) { |
853e2bd2 BG |
2320 | if (hba->phys_dev == phys_dev) |
2321 | return hba; | |
2322 | } | |
aea71a02 | 2323 | printk(KERN_ERR PFX "adapter_lookup: hba NULL\n"); |
853e2bd2 BG |
2324 | return NULL; |
2325 | } | |
2326 | ||
2327 | /** | |
2328 | * bnx2fc_ulp_exit - shuts down adapter instance and frees all resources | |
2329 | * | |
2330 | * @dev cnic device handle | |
2331 | */ | |
2332 | static void bnx2fc_ulp_exit(struct cnic_dev *dev) | |
2333 | { | |
2334 | struct bnx2fc_hba *hba; | |
aea71a02 | 2335 | struct bnx2fc_interface *interface, *tmp; |
853e2bd2 BG |
2336 | |
2337 | BNX2FC_MISC_DBG("Entered bnx2fc_ulp_exit\n"); | |
2338 | ||
2339 | if (!test_bit(CNIC_F_BNX2X_CLASS, &dev->flags)) { | |
2340 | printk(KERN_ERR PFX "bnx2fc port check: %s, flags: %lx\n", | |
2341 | dev->netdev->name, dev->flags); | |
2342 | return; | |
2343 | } | |
2344 | ||
2345 | mutex_lock(&bnx2fc_dev_lock); | |
2346 | hba = bnx2fc_find_hba_for_cnic(dev); | |
2347 | if (!hba) { | |
2348 | printk(KERN_ERR PFX "bnx2fc_ulp_exit: hba not found, dev 0%p\n", | |
2349 | dev); | |
2350 | mutex_unlock(&bnx2fc_dev_lock); | |
2351 | return; | |
2352 | } | |
2353 | ||
aea71a02 | 2354 | list_del_init(&hba->list); |
853e2bd2 BG |
2355 | adapter_count--; |
2356 | ||
abc49a93 | 2357 | list_for_each_entry_safe(interface, tmp, &if_list, list) |
853e2bd2 | 2358 | /* destroy not called yet, move to quiesced list */ |
abc49a93 | 2359 | if (interface->hba == hba) |
eccdcd02 | 2360 | __bnx2fc_destroy(interface); |
853e2bd2 BG |
2361 | mutex_unlock(&bnx2fc_dev_lock); |
2362 | ||
2363 | bnx2fc_ulp_stop(hba); | |
2364 | /* unregister cnic device */ | |
2365 | if (test_and_clear_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic)) | |
2366 | hba->cnic->unregister_device(hba->cnic, CNIC_ULP_FCOE); | |
aea71a02 | 2367 | bnx2fc_hba_destroy(hba); |
853e2bd2 BG |
2368 | } |
2369 | ||
2370 | /** | |
2371 | * bnx2fc_fcoe_reset - Resets the fcoe | |
2372 | * | |
2373 | * @shost: shost the reset is from | |
2374 | * | |
2375 | * Returns: always 0 | |
2376 | */ | |
2377 | static int bnx2fc_fcoe_reset(struct Scsi_Host *shost) | |
2378 | { | |
2379 | struct fc_lport *lport = shost_priv(shost); | |
2380 | fc_lport_reset(lport); | |
2381 | return 0; | |
2382 | } | |
2383 | ||
2384 | ||
2385 | static bool bnx2fc_match(struct net_device *netdev) | |
2386 | { | |
7adc5a37 BPG |
2387 | struct net_device *phys_dev = netdev; |
2388 | ||
853e2bd2 | 2389 | mutex_lock(&bnx2fc_dev_lock); |
7adc5a37 BPG |
2390 | if (netdev->priv_flags & IFF_802_1Q_VLAN) |
2391 | phys_dev = vlan_dev_real_dev(netdev); | |
853e2bd2 | 2392 | |
7adc5a37 BPG |
2393 | if (bnx2fc_hba_lookup(phys_dev)) { |
2394 | mutex_unlock(&bnx2fc_dev_lock); | |
2395 | return true; | |
853e2bd2 | 2396 | } |
7adc5a37 | 2397 | |
853e2bd2 BG |
2398 | mutex_unlock(&bnx2fc_dev_lock); |
2399 | return false; | |
2400 | } | |
2401 | ||
2402 | ||
2403 | static struct fcoe_transport bnx2fc_transport = { | |
2404 | .name = {"bnx2fc"}, | |
2405 | .attached = false, | |
2406 | .list = LIST_HEAD_INIT(bnx2fc_transport.list), | |
6e89ea3f | 2407 | .alloc = bnx2fc_ctlr_alloc, |
853e2bd2 BG |
2408 | .match = bnx2fc_match, |
2409 | .create = bnx2fc_create, | |
2410 | .destroy = bnx2fc_destroy, | |
2411 | .enable = bnx2fc_enable, | |
2412 | .disable = bnx2fc_disable, | |
2413 | }; | |
2414 | ||
2415 | /** | |
2416 | * bnx2fc_percpu_thread_create - Create a receive thread for an | |
2417 | * online CPU | |
2418 | * | |
2419 | * @cpu: cpu index for the online cpu | |
2420 | */ | |
2421 | static void bnx2fc_percpu_thread_create(unsigned int cpu) | |
2422 | { | |
2423 | struct bnx2fc_percpu_s *p; | |
2424 | struct task_struct *thread; | |
2425 | ||
2426 | p = &per_cpu(bnx2fc_percpu, cpu); | |
2427 | ||
69614270 ED |
2428 | thread = kthread_create_on_node(bnx2fc_percpu_io_thread, |
2429 | (void *)p, cpu_to_node(cpu), | |
2430 | "bnx2fc_thread/%d", cpu); | |
853e2bd2 | 2431 | /* bind thread to the cpu */ |
32248763 | 2432 | if (likely(!IS_ERR(thread))) { |
853e2bd2 BG |
2433 | kthread_bind(thread, cpu); |
2434 | p->iothread = thread; | |
2435 | wake_up_process(thread); | |
2436 | } | |
2437 | } | |
2438 | ||
2439 | static void bnx2fc_percpu_thread_destroy(unsigned int cpu) | |
2440 | { | |
2441 | struct bnx2fc_percpu_s *p; | |
2442 | struct task_struct *thread; | |
2443 | struct bnx2fc_work *work, *tmp; | |
853e2bd2 BG |
2444 | |
2445 | BNX2FC_MISC_DBG("destroying io thread for CPU %d\n", cpu); | |
2446 | ||
2447 | /* Prevent any new work from being queued for this CPU */ | |
2448 | p = &per_cpu(bnx2fc_percpu, cpu); | |
2449 | spin_lock_bh(&p->fp_work_lock); | |
2450 | thread = p->iothread; | |
2451 | p->iothread = NULL; | |
2452 | ||
2453 | ||
2454 | /* Free all work in the list */ | |
32248763 | 2455 | list_for_each_entry_safe(work, tmp, &p->work_list, list) { |
853e2bd2 BG |
2456 | list_del_init(&work->list); |
2457 | bnx2fc_process_cq_compl(work->tgt, work->wqe); | |
2458 | kfree(work); | |
2459 | } | |
2460 | ||
2461 | spin_unlock_bh(&p->fp_work_lock); | |
2462 | ||
2463 | if (thread) | |
2464 | kthread_stop(thread); | |
2465 | } | |
2466 | ||
2467 | /** | |
2468 | * bnx2fc_cpu_callback - Handler for CPU hotplug events | |
2469 | * | |
2470 | * @nfb: The callback data block | |
2471 | * @action: The event triggering the callback | |
2472 | * @hcpu: The index of the CPU that the event is for | |
2473 | * | |
2474 | * This creates or destroys per-CPU data for fcoe | |
2475 | * | |
2476 | * Returns NOTIFY_OK always. | |
2477 | */ | |
2478 | static int bnx2fc_cpu_callback(struct notifier_block *nfb, | |
2479 | unsigned long action, void *hcpu) | |
2480 | { | |
2481 | unsigned cpu = (unsigned long)hcpu; | |
2482 | ||
2483 | switch (action) { | |
2484 | case CPU_ONLINE: | |
2485 | case CPU_ONLINE_FROZEN: | |
2486 | printk(PFX "CPU %x online: Create Rx thread\n", cpu); | |
2487 | bnx2fc_percpu_thread_create(cpu); | |
2488 | break; | |
2489 | case CPU_DEAD: | |
2490 | case CPU_DEAD_FROZEN: | |
2491 | printk(PFX "CPU %x offline: Remove Rx thread\n", cpu); | |
2492 | bnx2fc_percpu_thread_destroy(cpu); | |
2493 | break; | |
2494 | default: | |
2495 | break; | |
2496 | } | |
2497 | return NOTIFY_OK; | |
2498 | } | |
2499 | ||
2500 | /** | |
2501 | * bnx2fc_mod_init - module init entry point | |
2502 | * | |
2503 | * Initialize driver wide global data structures, and register | |
2504 | * with cnic module | |
2505 | **/ | |
2506 | static int __init bnx2fc_mod_init(void) | |
2507 | { | |
2508 | struct fcoe_percpu_s *bg; | |
2509 | struct task_struct *l2_thread; | |
2510 | int rc = 0; | |
2511 | unsigned int cpu = 0; | |
2512 | struct bnx2fc_percpu_s *p; | |
2513 | ||
2514 | printk(KERN_INFO PFX "%s", version); | |
2515 | ||
2516 | /* register as a fcoe transport */ | |
2517 | rc = fcoe_transport_attach(&bnx2fc_transport); | |
2518 | if (rc) { | |
2519 | printk(KERN_ERR "failed to register an fcoe transport, check " | |
2520 | "if libfcoe is loaded\n"); | |
2521 | goto out; | |
2522 | } | |
2523 | ||
2524 | INIT_LIST_HEAD(&adapter_list); | |
aea71a02 | 2525 | INIT_LIST_HEAD(&if_list); |
853e2bd2 BG |
2526 | mutex_init(&bnx2fc_dev_lock); |
2527 | adapter_count = 0; | |
2528 | ||
2529 | /* Attach FC transport template */ | |
2530 | rc = bnx2fc_attach_transport(); | |
2531 | if (rc) | |
2532 | goto detach_ft; | |
2533 | ||
2534 | bnx2fc_wq = alloc_workqueue("bnx2fc", 0, 0); | |
2535 | if (!bnx2fc_wq) { | |
2536 | rc = -ENOMEM; | |
2537 | goto release_bt; | |
2538 | } | |
2539 | ||
2540 | bg = &bnx2fc_global; | |
2541 | skb_queue_head_init(&bg->fcoe_rx_list); | |
2542 | l2_thread = kthread_create(bnx2fc_l2_rcv_thread, | |
2543 | (void *)bg, | |
2544 | "bnx2fc_l2_thread"); | |
2545 | if (IS_ERR(l2_thread)) { | |
2546 | rc = PTR_ERR(l2_thread); | |
2547 | goto free_wq; | |
2548 | } | |
2549 | wake_up_process(l2_thread); | |
2550 | spin_lock_bh(&bg->fcoe_rx_list.lock); | |
2551 | bg->thread = l2_thread; | |
2552 | spin_unlock_bh(&bg->fcoe_rx_list.lock); | |
2553 | ||
2554 | for_each_possible_cpu(cpu) { | |
2555 | p = &per_cpu(bnx2fc_percpu, cpu); | |
2556 | INIT_LIST_HEAD(&p->work_list); | |
2557 | spin_lock_init(&p->fp_work_lock); | |
2558 | } | |
2559 | ||
2560 | for_each_online_cpu(cpu) { | |
2561 | bnx2fc_percpu_thread_create(cpu); | |
2562 | } | |
2563 | ||
2564 | /* Initialize per CPU interrupt thread */ | |
2565 | register_hotcpu_notifier(&bnx2fc_cpu_notifier); | |
2566 | ||
2567 | cnic_register_driver(CNIC_ULP_FCOE, &bnx2fc_cnic_cb); | |
2568 | ||
2569 | return 0; | |
2570 | ||
2571 | free_wq: | |
2572 | destroy_workqueue(bnx2fc_wq); | |
2573 | release_bt: | |
2574 | bnx2fc_release_transport(); | |
2575 | detach_ft: | |
2576 | fcoe_transport_detach(&bnx2fc_transport); | |
2577 | out: | |
2578 | return rc; | |
2579 | } | |
2580 | ||
2581 | static void __exit bnx2fc_mod_exit(void) | |
2582 | { | |
2583 | LIST_HEAD(to_be_deleted); | |
2584 | struct bnx2fc_hba *hba, *next; | |
2585 | struct fcoe_percpu_s *bg; | |
2586 | struct task_struct *l2_thread; | |
2587 | struct sk_buff *skb; | |
2588 | unsigned int cpu = 0; | |
2589 | ||
2590 | /* | |
2591 | * NOTE: Since cnic calls register_driver routine rtnl_lock, | |
2592 | * it will have higher precedence than bnx2fc_dev_lock. | |
2593 | * unregister_device() cannot be called with bnx2fc_dev_lock | |
2594 | * held. | |
2595 | */ | |
2596 | mutex_lock(&bnx2fc_dev_lock); | |
2597 | list_splice(&adapter_list, &to_be_deleted); | |
2598 | INIT_LIST_HEAD(&adapter_list); | |
2599 | adapter_count = 0; | |
2600 | mutex_unlock(&bnx2fc_dev_lock); | |
2601 | ||
2602 | /* Unregister with cnic */ | |
aea71a02 BPG |
2603 | list_for_each_entry_safe(hba, next, &to_be_deleted, list) { |
2604 | list_del_init(&hba->list); | |
2605 | printk(KERN_ERR PFX "MOD_EXIT:destroy hba = 0x%p\n", | |
2606 | hba); | |
853e2bd2 BG |
2607 | bnx2fc_ulp_stop(hba); |
2608 | /* unregister cnic device */ | |
2609 | if (test_and_clear_bit(BNX2FC_CNIC_REGISTERED, | |
2610 | &hba->reg_with_cnic)) | |
aea71a02 BPG |
2611 | hba->cnic->unregister_device(hba->cnic, |
2612 | CNIC_ULP_FCOE); | |
2613 | bnx2fc_hba_destroy(hba); | |
853e2bd2 BG |
2614 | } |
2615 | cnic_unregister_driver(CNIC_ULP_FCOE); | |
2616 | ||
2617 | /* Destroy global thread */ | |
2618 | bg = &bnx2fc_global; | |
2619 | spin_lock_bh(&bg->fcoe_rx_list.lock); | |
2620 | l2_thread = bg->thread; | |
2621 | bg->thread = NULL; | |
2622 | while ((skb = __skb_dequeue(&bg->fcoe_rx_list)) != NULL) | |
2623 | kfree_skb(skb); | |
2624 | ||
2625 | spin_unlock_bh(&bg->fcoe_rx_list.lock); | |
2626 | ||
2627 | if (l2_thread) | |
2628 | kthread_stop(l2_thread); | |
2629 | ||
2630 | unregister_hotcpu_notifier(&bnx2fc_cpu_notifier); | |
2631 | ||
2632 | /* Destroy per cpu threads */ | |
2633 | for_each_online_cpu(cpu) { | |
2634 | bnx2fc_percpu_thread_destroy(cpu); | |
2635 | } | |
2636 | ||
2637 | destroy_workqueue(bnx2fc_wq); | |
2638 | /* | |
2639 | * detach from scsi transport | |
2640 | * must happen after all destroys are done | |
2641 | */ | |
2642 | bnx2fc_release_transport(); | |
2643 | ||
2644 | /* detach from fcoe transport */ | |
2645 | fcoe_transport_detach(&bnx2fc_transport); | |
2646 | } | |
2647 | ||
2648 | module_init(bnx2fc_mod_init); | |
2649 | module_exit(bnx2fc_mod_exit); | |
2650 | ||
8d55e507 | 2651 | static struct fcoe_sysfs_function_template bnx2fc_fcoe_sysfs_templ = { |
6e89ea3f | 2652 | .set_fcoe_ctlr_enabled = bnx2fc_ctlr_enabled, |
b8b3e697 YZ |
2653 | .get_fcoe_ctlr_link_fail = fcoe_ctlr_get_lesb, |
2654 | .get_fcoe_ctlr_vlink_fail = fcoe_ctlr_get_lesb, | |
2655 | .get_fcoe_ctlr_miss_fka = fcoe_ctlr_get_lesb, | |
2656 | .get_fcoe_ctlr_symb_err = fcoe_ctlr_get_lesb, | |
2657 | .get_fcoe_ctlr_err_block = fcoe_ctlr_get_lesb, | |
2658 | .get_fcoe_ctlr_fcs_error = fcoe_ctlr_get_lesb, | |
8d55e507 RL |
2659 | |
2660 | .get_fcoe_fcf_selected = fcoe_fcf_get_selected, | |
2661 | .get_fcoe_fcf_vlan_id = bnx2fc_fcf_get_vlan_id, | |
2662 | }; | |
2663 | ||
853e2bd2 BG |
2664 | static struct fc_function_template bnx2fc_transport_function = { |
2665 | .show_host_node_name = 1, | |
2666 | .show_host_port_name = 1, | |
2667 | .show_host_supported_classes = 1, | |
2668 | .show_host_supported_fc4s = 1, | |
2669 | .show_host_active_fc4s = 1, | |
2670 | .show_host_maxframe_size = 1, | |
2671 | ||
2672 | .show_host_port_id = 1, | |
2673 | .show_host_supported_speeds = 1, | |
2674 | .get_host_speed = fc_get_host_speed, | |
2675 | .show_host_speed = 1, | |
2676 | .show_host_port_type = 1, | |
2677 | .get_host_port_state = fc_get_host_port_state, | |
2678 | .show_host_port_state = 1, | |
2679 | .show_host_symbolic_name = 1, | |
2680 | ||
2681 | .dd_fcrport_size = (sizeof(struct fc_rport_libfc_priv) + | |
2682 | sizeof(struct bnx2fc_rport)), | |
2683 | .show_rport_maxframe_size = 1, | |
2684 | .show_rport_supported_classes = 1, | |
2685 | ||
2686 | .show_host_fabric_name = 1, | |
2687 | .show_starget_node_name = 1, | |
2688 | .show_starget_port_name = 1, | |
2689 | .show_starget_port_id = 1, | |
2690 | .set_rport_dev_loss_tmo = fc_set_rport_loss_tmo, | |
2691 | .show_rport_dev_loss_tmo = 1, | |
2692 | .get_fc_host_stats = bnx2fc_get_host_stats, | |
2693 | ||
2694 | .issue_fc_host_lip = bnx2fc_fcoe_reset, | |
2695 | ||
2696 | .terminate_rport_io = fc_rport_terminate_io, | |
2697 | ||
2698 | .vport_create = bnx2fc_vport_create, | |
2699 | .vport_delete = bnx2fc_vport_destroy, | |
2700 | .vport_disable = bnx2fc_vport_disable, | |
e9a5289c | 2701 | .bsg_request = fc_lport_bsg_request, |
853e2bd2 BG |
2702 | }; |
2703 | ||
2704 | static struct fc_function_template bnx2fc_vport_xport_function = { | |
2705 | .show_host_node_name = 1, | |
2706 | .show_host_port_name = 1, | |
2707 | .show_host_supported_classes = 1, | |
2708 | .show_host_supported_fc4s = 1, | |
2709 | .show_host_active_fc4s = 1, | |
2710 | .show_host_maxframe_size = 1, | |
2711 | ||
2712 | .show_host_port_id = 1, | |
2713 | .show_host_supported_speeds = 1, | |
2714 | .get_host_speed = fc_get_host_speed, | |
2715 | .show_host_speed = 1, | |
2716 | .show_host_port_type = 1, | |
2717 | .get_host_port_state = fc_get_host_port_state, | |
2718 | .show_host_port_state = 1, | |
2719 | .show_host_symbolic_name = 1, | |
2720 | ||
2721 | .dd_fcrport_size = (sizeof(struct fc_rport_libfc_priv) + | |
2722 | sizeof(struct bnx2fc_rport)), | |
2723 | .show_rport_maxframe_size = 1, | |
2724 | .show_rport_supported_classes = 1, | |
2725 | ||
2726 | .show_host_fabric_name = 1, | |
2727 | .show_starget_node_name = 1, | |
2728 | .show_starget_port_name = 1, | |
2729 | .show_starget_port_id = 1, | |
2730 | .set_rport_dev_loss_tmo = fc_set_rport_loss_tmo, | |
2731 | .show_rport_dev_loss_tmo = 1, | |
2732 | .get_fc_host_stats = fc_get_host_stats, | |
2733 | .issue_fc_host_lip = bnx2fc_fcoe_reset, | |
2734 | .terminate_rport_io = fc_rport_terminate_io, | |
e9a5289c | 2735 | .bsg_request = fc_lport_bsg_request, |
853e2bd2 BG |
2736 | }; |
2737 | ||
2738 | /** | |
2739 | * scsi_host_template structure used while registering with SCSI-ml | |
2740 | */ | |
2741 | static struct scsi_host_template bnx2fc_shost_template = { | |
2742 | .module = THIS_MODULE, | |
2743 | .name = "Broadcom Offload FCoE Initiator", | |
2744 | .queuecommand = bnx2fc_queuecommand, | |
2745 | .eh_abort_handler = bnx2fc_eh_abort, /* abts */ | |
2746 | .eh_device_reset_handler = bnx2fc_eh_device_reset, /* lun reset */ | |
2747 | .eh_target_reset_handler = bnx2fc_eh_target_reset, /* tgt reset */ | |
2748 | .eh_host_reset_handler = fc_eh_host_reset, | |
2749 | .slave_alloc = fc_slave_alloc, | |
2750 | .change_queue_depth = fc_change_queue_depth, | |
2751 | .change_queue_type = fc_change_queue_type, | |
2752 | .this_id = -1, | |
2753 | .cmd_per_lun = 3, | |
853e2bd2 BG |
2754 | .use_clustering = ENABLE_CLUSTERING, |
2755 | .sg_tablesize = BNX2FC_MAX_BDS_PER_CMD, | |
d450d778 | 2756 | .max_sectors = 1024, |
853e2bd2 BG |
2757 | }; |
2758 | ||
2759 | static struct libfc_function_template bnx2fc_libfc_fcn_templ = { | |
2760 | .frame_send = bnx2fc_xmit, | |
2761 | .elsct_send = bnx2fc_elsct_send, | |
2762 | .fcp_abort_io = bnx2fc_abort_io, | |
2763 | .fcp_cleanup = bnx2fc_cleanup, | |
b8b3e697 | 2764 | .get_lesb = fcoe_get_lesb, |
853e2bd2 BG |
2765 | .rport_event_callback = bnx2fc_rport_event_handler, |
2766 | }; | |
2767 | ||
2768 | /** | |
2769 | * bnx2fc_cnic_cb - global template of bnx2fc - cnic driver interface | |
2770 | * structure carrying callback function pointers | |
2771 | */ | |
2772 | static struct cnic_ulp_ops bnx2fc_cnic_cb = { | |
2773 | .owner = THIS_MODULE, | |
2774 | .cnic_init = bnx2fc_ulp_init, | |
2775 | .cnic_exit = bnx2fc_ulp_exit, | |
2776 | .cnic_start = bnx2fc_ulp_start, | |
2777 | .cnic_stop = bnx2fc_ulp_stop, | |
2778 | .indicate_kcqes = bnx2fc_indicate_kcqe, | |
2779 | .indicate_netevent = bnx2fc_indicate_netevent, | |
2e499d3c | 2780 | .cnic_get_stats = bnx2fc_ulp_get_stats, |
853e2bd2 | 2781 | }; |