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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 | * | |
9b35baae | 6 | * Copyright (c) 2008 - 2011 Broadcom Corporation |
853e2bd2 BG |
7 | * |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation. | |
11 | * | |
12 | * Written by: Bhanu Prakash Gollapudi (bprakash@broadcom.com) | |
13 | */ | |
14 | ||
15 | #include "bnx2fc.h" | |
16 | ||
17 | static struct list_head adapter_list; | |
aea71a02 | 18 | static struct list_head if_list; |
853e2bd2 BG |
19 | static u32 adapter_count; |
20 | static DEFINE_MUTEX(bnx2fc_dev_lock); | |
21 | DEFINE_PER_CPU(struct bnx2fc_percpu_s, bnx2fc_percpu); | |
22 | ||
23 | #define DRV_MODULE_NAME "bnx2fc" | |
24 | #define DRV_MODULE_VERSION BNX2FC_VERSION | |
2b82d825 | 25 | #define DRV_MODULE_RELDATE "Dec 21, 2012" |
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 BG |
73 | static int bnx2fc_lport_config(struct fc_lport *lport); |
74 | static int bnx2fc_em_config(struct fc_lport *lport); | |
75 | static int bnx2fc_bind_adapter_devices(struct bnx2fc_hba *hba); | |
76 | static void bnx2fc_unbind_adapter_devices(struct bnx2fc_hba *hba); | |
77 | static int bnx2fc_bind_pcidev(struct bnx2fc_hba *hba); | |
78 | static void bnx2fc_unbind_pcidev(struct bnx2fc_hba *hba); | |
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; |
853e2bd2 BG |
682 | struct Scsi_Host *shost = lport->host; |
683 | int rc = 0; | |
684 | ||
685 | shost->max_cmd_len = BNX2FC_MAX_CMD_LEN; | |
686 | shost->max_lun = BNX2FC_MAX_LUN; | |
687 | shost->max_id = BNX2FC_MAX_FCP_TGT; | |
688 | shost->max_channel = 0; | |
689 | if (lport->vport) | |
690 | shost->transportt = bnx2fc_vport_xport_template; | |
691 | else | |
692 | shost->transportt = bnx2fc_transport_template; | |
693 | ||
694 | /* Add the new host to SCSI-ml */ | |
695 | rc = scsi_add_host(lport->host, dev); | |
696 | if (rc) { | |
697 | printk(KERN_ERR PFX "Error on scsi_add_host\n"); | |
698 | return rc; | |
699 | } | |
700 | if (!lport->vport) | |
701 | fc_host_max_npiv_vports(lport->host) = USHRT_MAX; | |
702 | sprintf(fc_host_symbolic_name(lport->host), "%s v%s over %s", | |
703 | BNX2FC_NAME, BNX2FC_VERSION, | |
aea71a02 | 704 | interface->netdev->name); |
853e2bd2 BG |
705 | |
706 | return 0; | |
707 | } | |
708 | ||
853e2bd2 BG |
709 | static int bnx2fc_link_ok(struct fc_lport *lport) |
710 | { | |
711 | struct fcoe_port *port = lport_priv(lport); | |
aea71a02 BPG |
712 | struct bnx2fc_interface *interface = port->priv; |
713 | struct bnx2fc_hba *hba = interface->hba; | |
853e2bd2 BG |
714 | struct net_device *dev = hba->phys_dev; |
715 | int rc = 0; | |
716 | ||
717 | if ((dev->flags & IFF_UP) && netif_carrier_ok(dev)) | |
718 | clear_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state); | |
719 | else { | |
720 | set_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state); | |
721 | rc = -1; | |
722 | } | |
723 | return rc; | |
724 | } | |
725 | ||
726 | /** | |
727 | * bnx2fc_get_link_state - get network link state | |
728 | * | |
729 | * @hba: adapter instance pointer | |
730 | * | |
731 | * updates adapter structure flag based on netdev state | |
732 | */ | |
733 | void bnx2fc_get_link_state(struct bnx2fc_hba *hba) | |
734 | { | |
aea71a02 | 735 | if (test_bit(__LINK_STATE_NOCARRIER, &hba->phys_dev->state)) |
853e2bd2 BG |
736 | set_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state); |
737 | else | |
738 | clear_bit(ADAPTER_STATE_LINK_DOWN, &hba->adapter_state); | |
739 | } | |
740 | ||
52439607 | 741 | static int bnx2fc_net_config(struct fc_lport *lport, struct net_device *netdev) |
853e2bd2 BG |
742 | { |
743 | struct bnx2fc_hba *hba; | |
aea71a02 | 744 | struct bnx2fc_interface *interface; |
fd8f8902 | 745 | struct fcoe_ctlr *ctlr; |
853e2bd2 BG |
746 | struct fcoe_port *port; |
747 | u64 wwnn, wwpn; | |
748 | ||
749 | port = lport_priv(lport); | |
aea71a02 | 750 | interface = port->priv; |
fd8f8902 | 751 | ctlr = bnx2fc_to_ctlr(interface); |
aea71a02 | 752 | hba = interface->hba; |
853e2bd2 BG |
753 | |
754 | /* require support for get_pauseparam ethtool op. */ | |
755 | if (!hba->phys_dev->ethtool_ops || | |
756 | !hba->phys_dev->ethtool_ops->get_pauseparam) | |
757 | return -EOPNOTSUPP; | |
758 | ||
1294bfe6 | 759 | if (fc_set_mfs(lport, BNX2FC_MFS)) |
853e2bd2 BG |
760 | return -EINVAL; |
761 | ||
762 | skb_queue_head_init(&port->fcoe_pending_queue); | |
763 | port->fcoe_pending_queue_active = 0; | |
764 | setup_timer(&port->timer, fcoe_queue_timer, (unsigned long) lport); | |
765 | ||
0e0f9cd6 | 766 | fcoe_link_speed_update(lport); |
853e2bd2 BG |
767 | |
768 | if (!lport->vport) { | |
52439607 | 769 | if (fcoe_get_wwn(netdev, &wwnn, NETDEV_FCOE_WWNN)) |
fd8f8902 | 770 | wwnn = fcoe_wwn_from_mac(ctlr->ctl_src_addr, |
52439607 | 771 | 1, 0); |
853e2bd2 BG |
772 | BNX2FC_HBA_DBG(lport, "WWNN = 0x%llx\n", wwnn); |
773 | fc_set_wwnn(lport, wwnn); | |
774 | ||
52439607 | 775 | if (fcoe_get_wwn(netdev, &wwpn, NETDEV_FCOE_WWPN)) |
fd8f8902 | 776 | wwpn = fcoe_wwn_from_mac(ctlr->ctl_src_addr, |
52439607 BPG |
777 | 2, 0); |
778 | ||
853e2bd2 BG |
779 | BNX2FC_HBA_DBG(lport, "WWPN = 0x%llx\n", wwpn); |
780 | fc_set_wwpn(lport, wwpn); | |
781 | } | |
782 | ||
783 | return 0; | |
784 | } | |
785 | ||
786 | static void bnx2fc_destroy_timer(unsigned long data) | |
787 | { | |
788 | struct bnx2fc_hba *hba = (struct bnx2fc_hba *)data; | |
789 | ||
cd703ae7 BPG |
790 | printk(KERN_ERR PFX "ERROR:bnx2fc_destroy_timer - " |
791 | "Destroy compl not received!!\n"); | |
aea71a02 | 792 | set_bit(BNX2FC_FLAG_DESTROY_CMPL, &hba->flags); |
853e2bd2 BG |
793 | wake_up_interruptible(&hba->destroy_wait); |
794 | } | |
795 | ||
796 | /** | |
797 | * bnx2fc_indicate_netevent - Generic netdev event handler | |
798 | * | |
799 | * @context: adapter structure pointer | |
800 | * @event: event type | |
415199f2 | 801 | * @vlan_id: vlan id - associated vlan id with this event |
853e2bd2 BG |
802 | * |
803 | * Handles NETDEV_UP, NETDEV_DOWN, NETDEV_GOING_DOWN,NETDEV_CHANGE and | |
abc49a93 | 804 | * NETDEV_CHANGE_MTU events. Handle NETDEV_UNREGISTER only for vlans. |
853e2bd2 | 805 | */ |
415199f2 MC |
806 | static void bnx2fc_indicate_netevent(void *context, unsigned long event, |
807 | u16 vlan_id) | |
853e2bd2 BG |
808 | { |
809 | struct bnx2fc_hba *hba = (struct bnx2fc_hba *)context; | |
6e89ea3f | 810 | struct fcoe_ctlr_device *cdev; |
aea71a02 | 811 | struct fc_lport *lport; |
853e2bd2 | 812 | struct fc_lport *vport; |
abc49a93 | 813 | struct bnx2fc_interface *interface, *tmp; |
fd8f8902 | 814 | struct fcoe_ctlr *ctlr; |
aea71a02 | 815 | int wait_for_upload = 0; |
853e2bd2 BG |
816 | u32 link_possible = 1; |
817 | ||
abc49a93 | 818 | if (vlan_id != 0 && event != NETDEV_UNREGISTER) |
415199f2 MC |
819 | return; |
820 | ||
853e2bd2 BG |
821 | switch (event) { |
822 | case NETDEV_UP: | |
853e2bd2 BG |
823 | if (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state)) |
824 | printk(KERN_ERR "indicate_netevent: "\ | |
aea71a02 | 825 | "hba is not UP!!\n"); |
853e2bd2 BG |
826 | break; |
827 | ||
828 | case NETDEV_DOWN: | |
853e2bd2 BG |
829 | clear_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state); |
830 | clear_bit(ADAPTER_STATE_UP, &hba->adapter_state); | |
831 | link_possible = 0; | |
832 | break; | |
833 | ||
834 | case NETDEV_GOING_DOWN: | |
853e2bd2 BG |
835 | set_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state); |
836 | link_possible = 0; | |
837 | break; | |
838 | ||
839 | case NETDEV_CHANGE: | |
853e2bd2 BG |
840 | break; |
841 | ||
abc49a93 BPG |
842 | case NETDEV_UNREGISTER: |
843 | if (!vlan_id) | |
844 | return; | |
845 | mutex_lock(&bnx2fc_dev_lock); | |
846 | list_for_each_entry_safe(interface, tmp, &if_list, list) { | |
26b2982f NNS |
847 | if (interface->hba == hba && |
848 | interface->vlan_id == (vlan_id & VLAN_VID_MASK)) | |
849 | __bnx2fc_destroy(interface); | |
abc49a93 BPG |
850 | } |
851 | mutex_unlock(&bnx2fc_dev_lock); | |
852 | return; | |
853 | ||
853e2bd2 | 854 | default: |
59e13d48 | 855 | printk(KERN_ERR PFX "Unknown netevent %ld", event); |
853e2bd2 BG |
856 | return; |
857 | } | |
858 | ||
aea71a02 BPG |
859 | mutex_lock(&bnx2fc_dev_lock); |
860 | list_for_each_entry(interface, &if_list, list) { | |
853e2bd2 | 861 | |
aea71a02 BPG |
862 | if (interface->hba != hba) |
863 | continue; | |
864 | ||
fd8f8902 RL |
865 | ctlr = bnx2fc_to_ctlr(interface); |
866 | lport = ctlr->lp; | |
aea71a02 BPG |
867 | BNX2FC_HBA_DBG(lport, "netevent handler - event=%s %ld\n", |
868 | interface->netdev->name, event); | |
869 | ||
0e0f9cd6 | 870 | fcoe_link_speed_update(lport); |
aea71a02 | 871 | |
6e89ea3f | 872 | cdev = fcoe_ctlr_to_ctlr_dev(ctlr); |
aea71a02 BPG |
873 | |
874 | if (link_possible && !bnx2fc_link_ok(lport)) { | |
6e89ea3f RL |
875 | switch (cdev->enabled) { |
876 | case FCOE_CTLR_DISABLED: | |
877 | pr_info("Link up while interface is disabled.\n"); | |
878 | break; | |
879 | case FCOE_CTLR_ENABLED: | |
880 | case FCOE_CTLR_UNUSED: | |
881 | /* Reset max recv frame size to default */ | |
882 | fc_set_mfs(lport, BNX2FC_MFS); | |
883 | /* | |
884 | * ctlr link up will only be handled during | |
885 | * enable to avoid sending discovery | |
886 | * solicitation on a stale vlan | |
887 | */ | |
888 | if (interface->enabled) | |
889 | fcoe_ctlr_link_up(ctlr); | |
890 | }; | |
fd8f8902 | 891 | } else if (fcoe_ctlr_link_down(ctlr)) { |
6e89ea3f RL |
892 | switch (cdev->enabled) { |
893 | case FCOE_CTLR_DISABLED: | |
894 | pr_info("Link down while interface is disabled.\n"); | |
895 | break; | |
896 | case FCOE_CTLR_ENABLED: | |
897 | case FCOE_CTLR_UNUSED: | |
898 | mutex_lock(&lport->lp_mutex); | |
899 | list_for_each_entry(vport, &lport->vports, list) | |
900 | fc_host_port_type(vport->host) = | |
901 | FC_PORTTYPE_UNKNOWN; | |
902 | mutex_unlock(&lport->lp_mutex); | |
903 | fc_host_port_type(lport->host) = | |
904 | FC_PORTTYPE_UNKNOWN; | |
905 | per_cpu_ptr(lport->stats, | |
906 | get_cpu())->LinkFailureCount++; | |
907 | put_cpu(); | |
908 | fcoe_clean_pending_queue(lport); | |
909 | wait_for_upload = 1; | |
910 | }; | |
aea71a02 BPG |
911 | } |
912 | } | |
913 | mutex_unlock(&bnx2fc_dev_lock); | |
853e2bd2 | 914 | |
aea71a02 BPG |
915 | if (wait_for_upload) { |
916 | clear_bit(ADAPTER_STATE_READY, &hba->adapter_state); | |
917 | init_waitqueue_head(&hba->shutdown_wait); | |
918 | BNX2FC_MISC_DBG("indicate_netevent " | |
919 | "num_ofld_sess = %d\n", | |
920 | hba->num_ofld_sess); | |
921 | hba->wait_for_link_down = 1; | |
922 | wait_event_interruptible(hba->shutdown_wait, | |
923 | (hba->num_ofld_sess == 0)); | |
924 | BNX2FC_MISC_DBG("wakeup - num_ofld_sess = %d\n", | |
853e2bd2 | 925 | hba->num_ofld_sess); |
aea71a02 | 926 | hba->wait_for_link_down = 0; |
853e2bd2 | 927 | |
aea71a02 BPG |
928 | if (signal_pending(current)) |
929 | flush_signals(current); | |
853e2bd2 BG |
930 | } |
931 | } | |
932 | ||
933 | static int bnx2fc_libfc_config(struct fc_lport *lport) | |
934 | { | |
935 | ||
936 | /* Set the function pointers set by bnx2fc driver */ | |
937 | memcpy(&lport->tt, &bnx2fc_libfc_fcn_templ, | |
938 | sizeof(struct libfc_function_template)); | |
939 | fc_elsct_init(lport); | |
940 | fc_exch_init(lport); | |
941 | fc_rport_init(lport); | |
942 | fc_disc_init(lport); | |
943 | return 0; | |
944 | } | |
945 | ||
946 | static int bnx2fc_em_config(struct fc_lport *lport) | |
947 | { | |
7d742f65 BPG |
948 | int max_xid; |
949 | ||
950 | if (nr_cpu_ids <= 2) | |
951 | max_xid = FCOE_XIDS_PER_CPU; | |
952 | else | |
953 | max_xid = FCOE_MAX_XID; | |
853e2bd2 | 954 | if (!fc_exch_mgr_alloc(lport, FC_CLASS_3, FCOE_MIN_XID, |
7d742f65 | 955 | max_xid, NULL)) { |
853e2bd2 BG |
956 | printk(KERN_ERR PFX "em_config:fc_exch_mgr_alloc failed\n"); |
957 | return -ENOMEM; | |
958 | } | |
959 | ||
853e2bd2 BG |
960 | return 0; |
961 | } | |
962 | ||
963 | static int bnx2fc_lport_config(struct fc_lport *lport) | |
964 | { | |
965 | lport->link_up = 0; | |
966 | lport->qfull = 0; | |
44c570b5 BPG |
967 | lport->max_retry_count = BNX2FC_MAX_RETRY_CNT; |
968 | lport->max_rport_retry_count = BNX2FC_MAX_RPORT_RETRY_CNT; | |
853e2bd2 BG |
969 | lport->e_d_tov = 2 * 1000; |
970 | lport->r_a_tov = 10 * 1000; | |
971 | ||
853e2bd2 BG |
972 | lport->service_params = (FCP_SPPF_INIT_FCN | FCP_SPPF_RD_XRDY_DIS | |
973 | FCP_SPPF_RETRY | FCP_SPPF_CONF_COMPL); | |
853e2bd2 BG |
974 | lport->does_npiv = 1; |
975 | ||
976 | memset(&lport->rnid_gen, 0, sizeof(struct fc_els_rnid_gen)); | |
977 | lport->rnid_gen.rnid_atype = BNX2FC_RNID_HBA; | |
978 | ||
979 | /* alloc stats structure */ | |
980 | if (fc_lport_init_stats(lport)) | |
981 | return -ENOMEM; | |
982 | ||
983 | /* Finish fc_lport configuration */ | |
984 | fc_lport_config(lport); | |
985 | ||
986 | return 0; | |
987 | } | |
988 | ||
989 | /** | |
990 | * bnx2fc_fip_recv - handle a received FIP frame. | |
991 | * | |
992 | * @skb: the received skb | |
993 | * @dev: associated &net_device | |
994 | * @ptype: the &packet_type structure which was used to register this handler. | |
995 | * @orig_dev: original receive &net_device, in case @ dev is a bond. | |
996 | * | |
997 | * Returns: 0 for success | |
998 | */ | |
999 | static int bnx2fc_fip_recv(struct sk_buff *skb, struct net_device *dev, | |
1000 | struct packet_type *ptype, | |
1001 | struct net_device *orig_dev) | |
1002 | { | |
aea71a02 | 1003 | struct bnx2fc_interface *interface; |
fd8f8902 | 1004 | struct fcoe_ctlr *ctlr; |
aea71a02 BPG |
1005 | interface = container_of(ptype, struct bnx2fc_interface, |
1006 | fip_packet_type); | |
fd8f8902 RL |
1007 | ctlr = bnx2fc_to_ctlr(interface); |
1008 | fcoe_ctlr_recv(ctlr, skb); | |
853e2bd2 BG |
1009 | return 0; |
1010 | } | |
1011 | ||
1012 | /** | |
1013 | * bnx2fc_update_src_mac - Update Ethernet MAC filters. | |
1014 | * | |
1015 | * @fip: FCoE controller. | |
1016 | * @old: Unicast MAC address to delete if the MAC is non-zero. | |
1017 | * @new: Unicast MAC address to add. | |
1018 | * | |
1019 | * Remove any previously-set unicast MAC filter. | |
1020 | * Add secondary FCoE MAC address filter for our OUI. | |
1021 | */ | |
1022 | static void bnx2fc_update_src_mac(struct fc_lport *lport, u8 *addr) | |
1023 | { | |
1024 | struct fcoe_port *port = lport_priv(lport); | |
1025 | ||
1026 | memcpy(port->data_src_addr, addr, ETH_ALEN); | |
1027 | } | |
1028 | ||
1029 | /** | |
1030 | * bnx2fc_get_src_mac - return the ethernet source address for an lport | |
1031 | * | |
1032 | * @lport: libfc port | |
1033 | */ | |
1034 | static u8 *bnx2fc_get_src_mac(struct fc_lport *lport) | |
1035 | { | |
1036 | struct fcoe_port *port; | |
1037 | ||
1038 | port = (struct fcoe_port *)lport_priv(lport); | |
1039 | return port->data_src_addr; | |
1040 | } | |
1041 | ||
1042 | /** | |
1043 | * bnx2fc_fip_send - send an Ethernet-encapsulated FIP frame. | |
1044 | * | |
1045 | * @fip: FCoE controller. | |
1046 | * @skb: FIP Packet. | |
1047 | */ | |
1048 | static void bnx2fc_fip_send(struct fcoe_ctlr *fip, struct sk_buff *skb) | |
1049 | { | |
1050 | skb->dev = bnx2fc_from_ctlr(fip)->netdev; | |
1051 | dev_queue_xmit(skb); | |
1052 | } | |
1053 | ||
1054 | static int bnx2fc_vport_create(struct fc_vport *vport, bool disabled) | |
1055 | { | |
1056 | struct Scsi_Host *shost = vport_to_shost(vport); | |
1057 | struct fc_lport *n_port = shost_priv(shost); | |
1058 | struct fcoe_port *port = lport_priv(n_port); | |
aea71a02 BPG |
1059 | struct bnx2fc_interface *interface = port->priv; |
1060 | struct net_device *netdev = interface->netdev; | |
853e2bd2 | 1061 | struct fc_lport *vn_port; |
861efc54 BPG |
1062 | int rc; |
1063 | char buf[32]; | |
1064 | ||
1065 | rc = fcoe_validate_vport_create(vport); | |
1066 | if (rc) { | |
1067 | fcoe_wwn_to_str(vport->port_name, buf, sizeof(buf)); | |
1068 | printk(KERN_ERR PFX "Failed to create vport, " | |
1069 | "WWPN (0x%s) already exists\n", | |
1070 | buf); | |
1071 | return rc; | |
1072 | } | |
853e2bd2 | 1073 | |
aea71a02 | 1074 | if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &interface->hba->flags)) { |
853e2bd2 | 1075 | printk(KERN_ERR PFX "vn ports cannot be created on" |
aea71a02 | 1076 | "this interface\n"); |
853e2bd2 BG |
1077 | return -EIO; |
1078 | } | |
4bc71cb9 | 1079 | rtnl_lock(); |
853e2bd2 | 1080 | mutex_lock(&bnx2fc_dev_lock); |
aea71a02 | 1081 | vn_port = bnx2fc_if_create(interface, &vport->dev, 1); |
853e2bd2 | 1082 | mutex_unlock(&bnx2fc_dev_lock); |
4bc71cb9 | 1083 | rtnl_unlock(); |
853e2bd2 BG |
1084 | |
1085 | if (IS_ERR(vn_port)) { | |
1086 | printk(KERN_ERR PFX "bnx2fc_vport_create (%s) failed\n", | |
1087 | netdev->name); | |
1088 | return -EIO; | |
1089 | } | |
1090 | ||
1091 | if (disabled) { | |
1092 | fc_vport_set_state(vport, FC_VPORT_DISABLED); | |
1093 | } else { | |
1094 | vn_port->boot_time = jiffies; | |
1095 | fc_lport_init(vn_port); | |
1096 | fc_fabric_login(vn_port); | |
1097 | fc_vport_setlink(vn_port); | |
1098 | } | |
1099 | return 0; | |
1100 | } | |
1101 | ||
abc49a93 BPG |
1102 | static void bnx2fc_free_vport(struct bnx2fc_hba *hba, struct fc_lport *lport) |
1103 | { | |
1104 | struct bnx2fc_lport *blport, *tmp; | |
1105 | ||
1106 | spin_lock_bh(&hba->hba_lock); | |
1107 | list_for_each_entry_safe(blport, tmp, &hba->vports, list) { | |
1108 | if (blport->lport == lport) { | |
1109 | list_del(&blport->list); | |
1110 | kfree(blport); | |
1111 | } | |
1112 | } | |
1113 | spin_unlock_bh(&hba->hba_lock); | |
1114 | } | |
1115 | ||
853e2bd2 BG |
1116 | static int bnx2fc_vport_destroy(struct fc_vport *vport) |
1117 | { | |
1118 | struct Scsi_Host *shost = vport_to_shost(vport); | |
1119 | struct fc_lport *n_port = shost_priv(shost); | |
1120 | struct fc_lport *vn_port = vport->dd_data; | |
1121 | struct fcoe_port *port = lport_priv(vn_port); | |
abc49a93 | 1122 | struct bnx2fc_interface *interface = port->priv; |
cdf54668 BPG |
1123 | struct fc_lport *v_port; |
1124 | bool found = false; | |
853e2bd2 BG |
1125 | |
1126 | mutex_lock(&n_port->lp_mutex); | |
cdf54668 BPG |
1127 | list_for_each_entry(v_port, &n_port->vports, list) |
1128 | if (v_port->vport == vport) { | |
1129 | found = true; | |
1130 | break; | |
1131 | } | |
1132 | ||
1133 | if (!found) { | |
1134 | mutex_unlock(&n_port->lp_mutex); | |
1135 | return -ENOENT; | |
1136 | } | |
853e2bd2 BG |
1137 | list_del(&vn_port->list); |
1138 | mutex_unlock(&n_port->lp_mutex); | |
abc49a93 BPG |
1139 | bnx2fc_free_vport(interface->hba, port->lport); |
1140 | bnx2fc_port_shutdown(port->lport); | |
1141 | bnx2fc_interface_put(interface); | |
853e2bd2 BG |
1142 | queue_work(bnx2fc_wq, &port->destroy_work); |
1143 | return 0; | |
1144 | } | |
1145 | ||
1146 | static int bnx2fc_vport_disable(struct fc_vport *vport, bool disable) | |
1147 | { | |
1148 | struct fc_lport *lport = vport->dd_data; | |
1149 | ||
1150 | if (disable) { | |
1151 | fc_vport_set_state(vport, FC_VPORT_DISABLED); | |
1152 | fc_fabric_logoff(lport); | |
1153 | } else { | |
1154 | lport->boot_time = jiffies; | |
1155 | fc_fabric_login(lport); | |
1156 | fc_vport_setlink(lport); | |
1157 | } | |
1158 | return 0; | |
1159 | } | |
1160 | ||
1161 | ||
776cebca | 1162 | static int bnx2fc_interface_setup(struct bnx2fc_interface *interface) |
853e2bd2 | 1163 | { |
aea71a02 BPG |
1164 | struct net_device *netdev = interface->netdev; |
1165 | struct net_device *physdev = interface->hba->phys_dev; | |
fd8f8902 | 1166 | struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface); |
853e2bd2 BG |
1167 | struct netdev_hw_addr *ha; |
1168 | int sel_san_mac = 0; | |
1169 | ||
853e2bd2 BG |
1170 | /* setup Source MAC Address */ |
1171 | rcu_read_lock(); | |
1172 | for_each_dev_addr(physdev, ha) { | |
1173 | BNX2FC_MISC_DBG("net_config: ha->type = %d, fip_mac = ", | |
1174 | ha->type); | |
1175 | printk(KERN_INFO "%2x:%2x:%2x:%2x:%2x:%2x\n", ha->addr[0], | |
1176 | ha->addr[1], ha->addr[2], ha->addr[3], | |
1177 | ha->addr[4], ha->addr[5]); | |
1178 | ||
1179 | if ((ha->type == NETDEV_HW_ADDR_T_SAN) && | |
1180 | (is_valid_ether_addr(ha->addr))) { | |
fd8f8902 | 1181 | memcpy(ctlr->ctl_src_addr, ha->addr, |
aea71a02 | 1182 | ETH_ALEN); |
853e2bd2 BG |
1183 | sel_san_mac = 1; |
1184 | BNX2FC_MISC_DBG("Found SAN MAC\n"); | |
1185 | } | |
1186 | } | |
1187 | rcu_read_unlock(); | |
1188 | ||
1189 | if (!sel_san_mac) | |
1190 | return -ENODEV; | |
1191 | ||
aea71a02 BPG |
1192 | interface->fip_packet_type.func = bnx2fc_fip_recv; |
1193 | interface->fip_packet_type.type = htons(ETH_P_FIP); | |
1194 | interface->fip_packet_type.dev = netdev; | |
1195 | dev_add_pack(&interface->fip_packet_type); | |
853e2bd2 | 1196 | |
aea71a02 BPG |
1197 | interface->fcoe_packet_type.func = bnx2fc_rcv; |
1198 | interface->fcoe_packet_type.type = __constant_htons(ETH_P_FCOE); | |
1199 | interface->fcoe_packet_type.dev = netdev; | |
1200 | dev_add_pack(&interface->fcoe_packet_type); | |
853e2bd2 BG |
1201 | |
1202 | return 0; | |
1203 | } | |
1204 | ||
1205 | static int bnx2fc_attach_transport(void) | |
1206 | { | |
1207 | bnx2fc_transport_template = | |
1208 | fc_attach_transport(&bnx2fc_transport_function); | |
1209 | ||
1210 | if (bnx2fc_transport_template == NULL) { | |
1211 | printk(KERN_ERR PFX "Failed to attach FC transport\n"); | |
1212 | return -ENODEV; | |
1213 | } | |
1214 | ||
1215 | bnx2fc_vport_xport_template = | |
1216 | fc_attach_transport(&bnx2fc_vport_xport_function); | |
1217 | if (bnx2fc_vport_xport_template == NULL) { | |
1218 | printk(KERN_ERR PFX | |
1219 | "Failed to attach FC transport for vport\n"); | |
1220 | fc_release_transport(bnx2fc_transport_template); | |
1221 | bnx2fc_transport_template = NULL; | |
1222 | return -ENODEV; | |
1223 | } | |
1224 | return 0; | |
1225 | } | |
1226 | static void bnx2fc_release_transport(void) | |
1227 | { | |
1228 | fc_release_transport(bnx2fc_transport_template); | |
1229 | fc_release_transport(bnx2fc_vport_xport_template); | |
1230 | bnx2fc_transport_template = NULL; | |
1231 | bnx2fc_vport_xport_template = NULL; | |
1232 | } | |
1233 | ||
1234 | static void bnx2fc_interface_release(struct kref *kref) | |
1235 | { | |
8d55e507 | 1236 | struct fcoe_ctlr_device *ctlr_dev; |
aea71a02 | 1237 | struct bnx2fc_interface *interface; |
fd8f8902 | 1238 | struct fcoe_ctlr *ctlr; |
853e2bd2 | 1239 | struct net_device *netdev; |
853e2bd2 | 1240 | |
aea71a02 | 1241 | interface = container_of(kref, struct bnx2fc_interface, kref); |
068bdce4 | 1242 | BNX2FC_MISC_DBG("Interface is being released\n"); |
853e2bd2 | 1243 | |
fd8f8902 | 1244 | ctlr = bnx2fc_to_ctlr(interface); |
8d55e507 | 1245 | ctlr_dev = fcoe_ctlr_to_ctlr_dev(ctlr); |
aea71a02 | 1246 | netdev = interface->netdev; |
853e2bd2 BG |
1247 | |
1248 | /* tear-down FIP controller */ | |
aea71a02 | 1249 | if (test_and_clear_bit(BNX2FC_CTLR_INIT_DONE, &interface->if_flags)) |
fd8f8902 | 1250 | fcoe_ctlr_destroy(ctlr); |
aea71a02 | 1251 | |
8d55e507 | 1252 | fcoe_ctlr_device_delete(ctlr_dev); |
853e2bd2 | 1253 | |
853e2bd2 BG |
1254 | dev_put(netdev); |
1255 | module_put(THIS_MODULE); | |
1256 | } | |
1257 | ||
aea71a02 | 1258 | static inline void bnx2fc_interface_get(struct bnx2fc_interface *interface) |
853e2bd2 | 1259 | { |
aea71a02 | 1260 | kref_get(&interface->kref); |
853e2bd2 BG |
1261 | } |
1262 | ||
aea71a02 | 1263 | static inline void bnx2fc_interface_put(struct bnx2fc_interface *interface) |
853e2bd2 | 1264 | { |
aea71a02 | 1265 | kref_put(&interface->kref, bnx2fc_interface_release); |
853e2bd2 | 1266 | } |
aea71a02 | 1267 | static void bnx2fc_hba_destroy(struct bnx2fc_hba *hba) |
853e2bd2 | 1268 | { |
aea71a02 BPG |
1269 | /* Free the command manager */ |
1270 | if (hba->cmd_mgr) { | |
1271 | bnx2fc_cmd_mgr_free(hba->cmd_mgr); | |
1272 | hba->cmd_mgr = NULL; | |
1273 | } | |
1274 | kfree(hba->tgt_ofld_list); | |
853e2bd2 BG |
1275 | bnx2fc_unbind_pcidev(hba); |
1276 | kfree(hba); | |
1277 | } | |
1278 | ||
1279 | /** | |
aea71a02 | 1280 | * bnx2fc_hba_create - create a new bnx2fc hba |
853e2bd2 BG |
1281 | * |
1282 | * @cnic: pointer to cnic device | |
1283 | * | |
aea71a02 BPG |
1284 | * Creates a new FCoE hba on the given device. |
1285 | * | |
853e2bd2 | 1286 | */ |
aea71a02 | 1287 | static struct bnx2fc_hba *bnx2fc_hba_create(struct cnic_dev *cnic) |
853e2bd2 BG |
1288 | { |
1289 | struct bnx2fc_hba *hba; | |
2e499d3c | 1290 | struct fcoe_capabilities *fcoe_cap; |
853e2bd2 BG |
1291 | int rc; |
1292 | ||
1293 | hba = kzalloc(sizeof(*hba), GFP_KERNEL); | |
1294 | if (!hba) { | |
1295 | printk(KERN_ERR PFX "Unable to allocate hba structure\n"); | |
1296 | return NULL; | |
1297 | } | |
1298 | spin_lock_init(&hba->hba_lock); | |
1299 | mutex_init(&hba->hba_mutex); | |
1300 | ||
1301 | hba->cnic = cnic; | |
1302 | rc = bnx2fc_bind_pcidev(hba); | |
aea71a02 BPG |
1303 | if (rc) { |
1304 | printk(KERN_ERR PFX "create_adapter: bind error\n"); | |
853e2bd2 | 1305 | goto bind_err; |
aea71a02 | 1306 | } |
853e2bd2 | 1307 | hba->phys_dev = cnic->netdev; |
aea71a02 BPG |
1308 | hba->next_conn_id = 0; |
1309 | ||
1310 | hba->tgt_ofld_list = | |
1311 | kzalloc(sizeof(struct bnx2fc_rport *) * BNX2FC_NUM_MAX_SESS, | |
1312 | GFP_KERNEL); | |
1313 | if (!hba->tgt_ofld_list) { | |
1314 | printk(KERN_ERR PFX "Unable to allocate tgt offload list\n"); | |
1315 | goto tgtofld_err; | |
1316 | } | |
1317 | ||
1318 | hba->num_ofld_sess = 0; | |
1319 | ||
1320 | hba->cmd_mgr = bnx2fc_cmd_mgr_alloc(hba, BNX2FC_MIN_XID, | |
1321 | BNX2FC_MAX_XID); | |
1322 | if (!hba->cmd_mgr) { | |
1323 | printk(KERN_ERR PFX "em_config:bnx2fc_cmd_mgr_alloc failed\n"); | |
1324 | goto cmgr_err; | |
1325 | } | |
2e499d3c BW |
1326 | fcoe_cap = &hba->fcoe_cap; |
1327 | ||
1328 | fcoe_cap->capability1 = BNX2FC_TM_MAX_SQES << | |
1329 | FCOE_IOS_PER_CONNECTION_SHIFT; | |
1330 | fcoe_cap->capability1 |= BNX2FC_NUM_MAX_SESS << | |
1331 | FCOE_LOGINS_PER_PORT_SHIFT; | |
1332 | fcoe_cap->capability2 = BNX2FC_MAX_OUTSTANDING_CMNDS << | |
1333 | FCOE_NUMBER_OF_EXCHANGES_SHIFT; | |
1334 | fcoe_cap->capability2 |= BNX2FC_MAX_NPIV << | |
1335 | FCOE_NPIV_WWN_PER_PORT_SHIFT; | |
1336 | fcoe_cap->capability3 = BNX2FC_NUM_MAX_SESS << | |
1337 | FCOE_TARGETS_SUPPORTED_SHIFT; | |
1338 | fcoe_cap->capability3 |= BNX2FC_MAX_OUTSTANDING_CMNDS << | |
1339 | FCOE_OUTSTANDING_COMMANDS_SHIFT; | |
1340 | fcoe_cap->capability4 = FCOE_CAPABILITY4_STATEFUL; | |
853e2bd2 BG |
1341 | |
1342 | init_waitqueue_head(&hba->shutdown_wait); | |
1343 | init_waitqueue_head(&hba->destroy_wait); | |
aea71a02 | 1344 | INIT_LIST_HEAD(&hba->vports); |
853e2bd2 BG |
1345 | |
1346 | return hba; | |
aea71a02 BPG |
1347 | |
1348 | cmgr_err: | |
1349 | kfree(hba->tgt_ofld_list); | |
1350 | tgtofld_err: | |
1351 | bnx2fc_unbind_pcidev(hba); | |
853e2bd2 | 1352 | bind_err: |
853e2bd2 BG |
1353 | kfree(hba); |
1354 | return NULL; | |
1355 | } | |
1356 | ||
aea71a02 BPG |
1357 | struct bnx2fc_interface *bnx2fc_interface_create(struct bnx2fc_hba *hba, |
1358 | struct net_device *netdev, | |
1359 | enum fip_state fip_mode) | |
853e2bd2 | 1360 | { |
8d55e507 | 1361 | struct fcoe_ctlr_device *ctlr_dev; |
aea71a02 | 1362 | struct bnx2fc_interface *interface; |
fd8f8902 RL |
1363 | struct fcoe_ctlr *ctlr; |
1364 | int size; | |
853e2bd2 | 1365 | int rc = 0; |
853e2bd2 | 1366 | |
fd8f8902 | 1367 | size = (sizeof(*interface) + sizeof(struct fcoe_ctlr)); |
8d55e507 RL |
1368 | ctlr_dev = fcoe_ctlr_device_add(&netdev->dev, &bnx2fc_fcoe_sysfs_templ, |
1369 | size); | |
1370 | if (!ctlr_dev) { | |
aea71a02 BPG |
1371 | printk(KERN_ERR PFX "Unable to allocate interface structure\n"); |
1372 | return NULL; | |
1373 | } | |
8d55e507 | 1374 | ctlr = fcoe_ctlr_device_priv(ctlr_dev); |
fd8f8902 | 1375 | interface = fcoe_ctlr_priv(ctlr); |
853e2bd2 | 1376 | dev_hold(netdev); |
aea71a02 BPG |
1377 | kref_init(&interface->kref); |
1378 | interface->hba = hba; | |
1379 | interface->netdev = netdev; | |
853e2bd2 BG |
1380 | |
1381 | /* Initialize FIP */ | |
fd8f8902 RL |
1382 | fcoe_ctlr_init(ctlr, fip_mode); |
1383 | ctlr->send = bnx2fc_fip_send; | |
1384 | ctlr->update_mac = bnx2fc_update_src_mac; | |
1385 | ctlr->get_src_addr = bnx2fc_get_src_mac; | |
aea71a02 | 1386 | set_bit(BNX2FC_CTLR_INIT_DONE, &interface->if_flags); |
853e2bd2 | 1387 | |
776cebca | 1388 | rc = bnx2fc_interface_setup(interface); |
aea71a02 BPG |
1389 | if (!rc) |
1390 | return interface; | |
853e2bd2 | 1391 | |
fd8f8902 | 1392 | fcoe_ctlr_destroy(ctlr); |
853e2bd2 | 1393 | dev_put(netdev); |
8d55e507 | 1394 | fcoe_ctlr_device_delete(ctlr_dev); |
aea71a02 | 1395 | return NULL; |
853e2bd2 BG |
1396 | } |
1397 | ||
1398 | /** | |
1399 | * bnx2fc_if_create - Create FCoE instance on a given interface | |
1400 | * | |
aea71a02 | 1401 | * @interface: FCoE interface to create a local port on |
853e2bd2 BG |
1402 | * @parent: Device pointer to be the parent in sysfs for the SCSI host |
1403 | * @npiv: Indicates if the port is vport or not | |
1404 | * | |
1405 | * Creates a fc_lport instance and a Scsi_Host instance and configure them. | |
1406 | * | |
1407 | * Returns: Allocated fc_lport or an error pointer | |
1408 | */ | |
aea71a02 | 1409 | static struct fc_lport *bnx2fc_if_create(struct bnx2fc_interface *interface, |
853e2bd2 BG |
1410 | struct device *parent, int npiv) |
1411 | { | |
fd8f8902 | 1412 | struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface); |
134a4e27 | 1413 | struct fc_lport *lport, *n_port; |
853e2bd2 BG |
1414 | struct fcoe_port *port; |
1415 | struct Scsi_Host *shost; | |
1416 | struct fc_vport *vport = dev_to_vport(parent); | |
d36b3279 | 1417 | struct bnx2fc_lport *blport; |
aea71a02 | 1418 | struct bnx2fc_hba *hba; |
853e2bd2 BG |
1419 | int rc = 0; |
1420 | ||
d36b3279 BPG |
1421 | blport = kzalloc(sizeof(struct bnx2fc_lport), GFP_KERNEL); |
1422 | if (!blport) { | |
fd8f8902 | 1423 | BNX2FC_HBA_DBG(ctlr->lp, "Unable to alloc blport\n"); |
d36b3279 BPG |
1424 | return NULL; |
1425 | } | |
1426 | ||
853e2bd2 | 1427 | /* Allocate Scsi_Host structure */ |
134a4e27 VD |
1428 | if (!npiv) |
1429 | lport = libfc_host_alloc(&bnx2fc_shost_template, sizeof(*port)); | |
1430 | else | |
1431 | lport = libfc_vport_create(vport, sizeof(*port)); | |
853e2bd2 BG |
1432 | |
1433 | if (!lport) { | |
1434 | printk(KERN_ERR PFX "could not allocate scsi host structure\n"); | |
d36b3279 | 1435 | goto free_blport; |
853e2bd2 BG |
1436 | } |
1437 | shost = lport->host; | |
1438 | port = lport_priv(lport); | |
1439 | port->lport = lport; | |
aea71a02 | 1440 | port->priv = interface; |
c3d7909b | 1441 | port->get_netdev = bnx2fc_netdev; |
853e2bd2 BG |
1442 | INIT_WORK(&port->destroy_work, bnx2fc_destroy_work); |
1443 | ||
1444 | /* Configure fcoe_port */ | |
1445 | rc = bnx2fc_lport_config(lport); | |
1446 | if (rc) | |
1447 | goto lp_config_err; | |
1448 | ||
1449 | if (npiv) { | |
853e2bd2 BG |
1450 | printk(KERN_ERR PFX "Setting vport names, 0x%llX 0x%llX\n", |
1451 | vport->node_name, vport->port_name); | |
1452 | fc_set_wwnn(lport, vport->node_name); | |
1453 | fc_set_wwpn(lport, vport->port_name); | |
1454 | } | |
1455 | /* Configure netdev and networking properties of the lport */ | |
52439607 | 1456 | rc = bnx2fc_net_config(lport, interface->netdev); |
853e2bd2 BG |
1457 | if (rc) { |
1458 | printk(KERN_ERR PFX "Error on bnx2fc_net_config\n"); | |
1459 | goto lp_config_err; | |
1460 | } | |
1461 | ||
1462 | rc = bnx2fc_shost_config(lport, parent); | |
1463 | if (rc) { | |
1464 | printk(KERN_ERR PFX "Couldnt configure shost for %s\n", | |
aea71a02 | 1465 | interface->netdev->name); |
853e2bd2 BG |
1466 | goto lp_config_err; |
1467 | } | |
1468 | ||
1469 | /* Initialize the libfc library */ | |
1470 | rc = bnx2fc_libfc_config(lport); | |
1471 | if (rc) { | |
1472 | printk(KERN_ERR PFX "Couldnt configure libfc\n"); | |
1473 | goto shost_err; | |
1474 | } | |
1475 | fc_host_port_type(lport->host) = FC_PORTTYPE_UNKNOWN; | |
1476 | ||
1477 | /* Allocate exchange manager */ | |
134a4e27 | 1478 | if (!npiv) |
853e2bd2 | 1479 | rc = bnx2fc_em_config(lport); |
134a4e27 VD |
1480 | else { |
1481 | shost = vport_to_shost(vport); | |
1482 | n_port = shost_priv(shost); | |
1483 | rc = fc_exch_mgr_list_clone(n_port, lport); | |
1484 | } | |
1485 | ||
1486 | if (rc) { | |
1487 | printk(KERN_ERR PFX "Error on bnx2fc_em_config\n"); | |
1488 | goto shost_err; | |
853e2bd2 BG |
1489 | } |
1490 | ||
aea71a02 | 1491 | bnx2fc_interface_get(interface); |
d36b3279 | 1492 | |
aea71a02 | 1493 | hba = interface->hba; |
d36b3279 BPG |
1494 | spin_lock_bh(&hba->hba_lock); |
1495 | blport->lport = lport; | |
1496 | list_add_tail(&blport->list, &hba->vports); | |
1497 | spin_unlock_bh(&hba->hba_lock); | |
1498 | ||
853e2bd2 BG |
1499 | return lport; |
1500 | ||
1501 | shost_err: | |
1502 | scsi_remove_host(shost); | |
1503 | lp_config_err: | |
1504 | scsi_host_put(lport->host); | |
d36b3279 BPG |
1505 | free_blport: |
1506 | kfree(blport); | |
853e2bd2 BG |
1507 | return NULL; |
1508 | } | |
1509 | ||
013068fa | 1510 | static void bnx2fc_net_cleanup(struct bnx2fc_interface *interface) |
853e2bd2 BG |
1511 | { |
1512 | /* Dont listen for Ethernet packets anymore */ | |
aea71a02 BPG |
1513 | __dev_remove_pack(&interface->fcoe_packet_type); |
1514 | __dev_remove_pack(&interface->fip_packet_type); | |
853e2bd2 BG |
1515 | synchronize_net(); |
1516 | } | |
1517 | ||
776cebca | 1518 | static void bnx2fc_interface_cleanup(struct bnx2fc_interface *interface) |
853e2bd2 | 1519 | { |
fd8f8902 RL |
1520 | struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface); |
1521 | struct fc_lport *lport = ctlr->lp; | |
853e2bd2 | 1522 | struct fcoe_port *port = lport_priv(lport); |
9be17fc4 | 1523 | struct bnx2fc_hba *hba = interface->hba; |
853e2bd2 | 1524 | |
853e2bd2 BG |
1525 | /* Stop the transmit retry timer */ |
1526 | del_timer_sync(&port->timer); | |
1527 | ||
1528 | /* Free existing transmit skbs */ | |
1529 | fcoe_clean_pending_queue(lport); | |
1530 | ||
013068fa | 1531 | bnx2fc_net_cleanup(interface); |
9be17fc4 | 1532 | |
abc49a93 | 1533 | bnx2fc_free_vport(hba, lport); |
9be17fc4 BPG |
1534 | } |
1535 | ||
1536 | static void bnx2fc_if_destroy(struct fc_lport *lport) | |
1537 | { | |
1538 | ||
853e2bd2 BG |
1539 | /* Free queued packets for the receive thread */ |
1540 | bnx2fc_clean_rx_queue(lport); | |
1541 | ||
1542 | /* Detach from scsi-ml */ | |
1543 | fc_remove_host(lport->host); | |
1544 | scsi_remove_host(lport->host); | |
1545 | ||
1546 | /* | |
1547 | * Note that only the physical lport will have the exchange manager. | |
1548 | * for vports, this function is NOP | |
1549 | */ | |
1550 | fc_exch_mgr_free(lport); | |
1551 | ||
1552 | /* Free memory used by statistical counters */ | |
1553 | fc_lport_free_stats(lport); | |
1554 | ||
1555 | /* Release Scsi_Host */ | |
1556 | scsi_host_put(lport->host); | |
1557 | } | |
1558 | ||
eccdcd02 | 1559 | static void __bnx2fc_destroy(struct bnx2fc_interface *interface) |
abc49a93 | 1560 | { |
fd8f8902 RL |
1561 | struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface); |
1562 | struct fc_lport *lport = ctlr->lp; | |
0cbf32e1 | 1563 | struct fcoe_port *port = lport_priv(lport); |
abc49a93 BPG |
1564 | |
1565 | bnx2fc_interface_cleanup(interface); | |
1566 | bnx2fc_stop(interface); | |
abc49a93 | 1567 | list_del(&interface->list); |
abc49a93 | 1568 | bnx2fc_interface_put(interface); |
0cbf32e1 | 1569 | queue_work(bnx2fc_wq, &port->destroy_work); |
abc49a93 BPG |
1570 | } |
1571 | ||
853e2bd2 BG |
1572 | /** |
1573 | * bnx2fc_destroy - Destroy a bnx2fc FCoE interface | |
1574 | * | |
1575 | * @buffer: The name of the Ethernet interface to be destroyed | |
1576 | * @kp: The associated kernel parameter | |
1577 | * | |
1578 | * Called from sysfs. | |
1579 | * | |
1580 | * Returns: 0 for success | |
1581 | */ | |
1582 | static int bnx2fc_destroy(struct net_device *netdev) | |
1583 | { | |
aea71a02 | 1584 | struct bnx2fc_interface *interface = NULL; |
2a7b29c5 | 1585 | struct workqueue_struct *timer_work_queue; |
fd8f8902 | 1586 | struct fcoe_ctlr *ctlr; |
853e2bd2 BG |
1587 | int rc = 0; |
1588 | ||
6702ca1d | 1589 | rtnl_lock(); |
853e2bd2 | 1590 | mutex_lock(&bnx2fc_dev_lock); |
853e2bd2 | 1591 | |
aea71a02 | 1592 | interface = bnx2fc_interface_lookup(netdev); |
fd8f8902 RL |
1593 | ctlr = bnx2fc_to_ctlr(interface); |
1594 | if (!interface || !ctlr->lp) { | |
853e2bd2 | 1595 | rc = -ENODEV; |
aea71a02 | 1596 | printk(KERN_ERR PFX "bnx2fc_destroy: interface or lport not found\n"); |
853e2bd2 BG |
1597 | goto netdev_err; |
1598 | } | |
1599 | ||
2a7b29c5 | 1600 | timer_work_queue = interface->timer_work_queue; |
eccdcd02 | 1601 | __bnx2fc_destroy(interface); |
2a7b29c5 | 1602 | destroy_workqueue(timer_work_queue); |
853e2bd2 | 1603 | |
853e2bd2 BG |
1604 | netdev_err: |
1605 | mutex_unlock(&bnx2fc_dev_lock); | |
1606 | rtnl_unlock(); | |
1607 | return rc; | |
1608 | } | |
1609 | ||
1610 | static void bnx2fc_destroy_work(struct work_struct *work) | |
1611 | { | |
1612 | struct fcoe_port *port; | |
1613 | struct fc_lport *lport; | |
1614 | ||
1615 | port = container_of(work, struct fcoe_port, destroy_work); | |
1616 | lport = port->lport; | |
1617 | ||
1618 | BNX2FC_HBA_DBG(lport, "Entered bnx2fc_destroy_work\n"); | |
1619 | ||
9be17fc4 | 1620 | bnx2fc_if_destroy(lport); |
853e2bd2 BG |
1621 | } |
1622 | ||
1623 | static void bnx2fc_unbind_adapter_devices(struct bnx2fc_hba *hba) | |
1624 | { | |
1625 | bnx2fc_free_fw_resc(hba); | |
1626 | bnx2fc_free_task_ctx(hba); | |
1627 | } | |
1628 | ||
1629 | /** | |
1630 | * bnx2fc_bind_adapter_devices - binds bnx2fc adapter with the associated | |
1631 | * pci structure | |
1632 | * | |
1633 | * @hba: Adapter instance | |
1634 | */ | |
1635 | static int bnx2fc_bind_adapter_devices(struct bnx2fc_hba *hba) | |
1636 | { | |
1637 | if (bnx2fc_setup_task_ctx(hba)) | |
1638 | goto mem_err; | |
1639 | ||
1640 | if (bnx2fc_setup_fw_resc(hba)) | |
1641 | goto mem_err; | |
1642 | ||
1643 | return 0; | |
1644 | mem_err: | |
1645 | bnx2fc_unbind_adapter_devices(hba); | |
1646 | return -ENOMEM; | |
1647 | } | |
1648 | ||
1649 | static int bnx2fc_bind_pcidev(struct bnx2fc_hba *hba) | |
1650 | { | |
1651 | struct cnic_dev *cnic; | |
1652 | ||
1653 | if (!hba->cnic) { | |
1654 | printk(KERN_ERR PFX "cnic is NULL\n"); | |
1655 | return -ENODEV; | |
1656 | } | |
1657 | cnic = hba->cnic; | |
1658 | hba->pcidev = cnic->pcidev; | |
1659 | if (hba->pcidev) | |
1660 | pci_dev_get(hba->pcidev); | |
1661 | ||
1662 | return 0; | |
1663 | } | |
1664 | ||
1665 | static void bnx2fc_unbind_pcidev(struct bnx2fc_hba *hba) | |
1666 | { | |
1667 | if (hba->pcidev) | |
1668 | pci_dev_put(hba->pcidev); | |
1669 | hba->pcidev = NULL; | |
1670 | } | |
1671 | ||
2e499d3c BW |
1672 | /** |
1673 | * bnx2fc_ulp_get_stats - cnic callback to populate FCoE stats | |
1674 | * | |
1675 | * @handle: transport handle pointing to adapter struture | |
1676 | */ | |
1677 | static int bnx2fc_ulp_get_stats(void *handle) | |
1678 | { | |
1679 | struct bnx2fc_hba *hba = handle; | |
1680 | struct cnic_dev *cnic; | |
1681 | struct fcoe_stats_info *stats_addr; | |
1682 | ||
1683 | if (!hba) | |
1684 | return -EINVAL; | |
1685 | ||
1686 | cnic = hba->cnic; | |
1687 | stats_addr = &cnic->stats_addr->fcoe_stat; | |
1688 | if (!stats_addr) | |
1689 | return -EINVAL; | |
1690 | ||
1691 | strncpy(stats_addr->version, BNX2FC_VERSION, | |
1692 | sizeof(stats_addr->version)); | |
1693 | stats_addr->txq_size = BNX2FC_SQ_WQES_MAX; | |
1694 | stats_addr->rxq_size = BNX2FC_CQ_WQES_MAX; | |
1695 | ||
1696 | return 0; | |
1697 | } | |
853e2bd2 BG |
1698 | |
1699 | ||
1700 | /** | |
1701 | * bnx2fc_ulp_start - cnic callback to initialize & start adapter instance | |
1702 | * | |
59e13d48 | 1703 | * @handle: transport handle pointing to adapter structure |
853e2bd2 BG |
1704 | * |
1705 | * This function maps adapter structure to pcidev structure and initiates | |
1706 | * firmware handshake to enable/initialize on-chip FCoE components. | |
1707 | * This bnx2fc - cnic interface api callback is used after following | |
1708 | * conditions are met - | |
1709 | * a) underlying network interface is up (marked by event NETDEV_UP | |
1710 | * from netdev | |
1711 | * b) bnx2fc adatper structure is registered. | |
1712 | */ | |
1713 | static void bnx2fc_ulp_start(void *handle) | |
1714 | { | |
1715 | struct bnx2fc_hba *hba = handle; | |
aea71a02 | 1716 | struct bnx2fc_interface *interface; |
fd8f8902 | 1717 | struct fcoe_ctlr *ctlr; |
aea71a02 | 1718 | struct fc_lport *lport; |
853e2bd2 | 1719 | |
853e2bd2 BG |
1720 | mutex_lock(&bnx2fc_dev_lock); |
1721 | ||
aea71a02 | 1722 | if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags)) |
853e2bd2 BG |
1723 | bnx2fc_fw_init(hba); |
1724 | ||
853e2bd2 BG |
1725 | BNX2FC_MISC_DBG("bnx2fc started.\n"); |
1726 | ||
aea71a02 BPG |
1727 | list_for_each_entry(interface, &if_list, list) { |
1728 | if (interface->hba == hba) { | |
fd8f8902 RL |
1729 | ctlr = bnx2fc_to_ctlr(interface); |
1730 | lport = ctlr->lp; | |
aea71a02 BPG |
1731 | /* Kick off Fabric discovery*/ |
1732 | printk(KERN_ERR PFX "ulp_init: start discovery\n"); | |
1733 | lport->tt.frame_send = bnx2fc_xmit; | |
1734 | bnx2fc_start_disc(interface); | |
1735 | } | |
853e2bd2 | 1736 | } |
aea71a02 BPG |
1737 | |
1738 | mutex_unlock(&bnx2fc_dev_lock); | |
853e2bd2 BG |
1739 | } |
1740 | ||
1741 | static void bnx2fc_port_shutdown(struct fc_lport *lport) | |
1742 | { | |
1743 | BNX2FC_MISC_DBG("Entered %s\n", __func__); | |
1744 | fc_fabric_logoff(lport); | |
1745 | fc_lport_destroy(lport); | |
1746 | } | |
1747 | ||
aea71a02 | 1748 | static void bnx2fc_stop(struct bnx2fc_interface *interface) |
853e2bd2 | 1749 | { |
fd8f8902 | 1750 | struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface); |
853e2bd2 BG |
1751 | struct fc_lport *lport; |
1752 | struct fc_lport *vport; | |
1753 | ||
aea71a02 BPG |
1754 | if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &interface->hba->flags)) |
1755 | return; | |
853e2bd2 | 1756 | |
fd8f8902 | 1757 | lport = ctlr->lp; |
aea71a02 BPG |
1758 | bnx2fc_port_shutdown(lport); |
1759 | ||
1760 | mutex_lock(&lport->lp_mutex); | |
1761 | list_for_each_entry(vport, &lport->vports, list) | |
1762 | fc_host_port_type(vport->host) = | |
1763 | FC_PORTTYPE_UNKNOWN; | |
1764 | mutex_unlock(&lport->lp_mutex); | |
1765 | fc_host_port_type(lport->host) = FC_PORTTYPE_UNKNOWN; | |
fd8f8902 | 1766 | fcoe_ctlr_link_down(ctlr); |
aea71a02 | 1767 | fcoe_clean_pending_queue(lport); |
853e2bd2 BG |
1768 | } |
1769 | ||
1770 | static int bnx2fc_fw_init(struct bnx2fc_hba *hba) | |
1771 | { | |
1772 | #define BNX2FC_INIT_POLL_TIME (1000 / HZ) | |
1773 | int rc = -1; | |
1774 | int i = HZ; | |
1775 | ||
1776 | rc = bnx2fc_bind_adapter_devices(hba); | |
1777 | if (rc) { | |
1778 | printk(KERN_ALERT PFX | |
1779 | "bnx2fc_bind_adapter_devices failed - rc = %d\n", rc); | |
1780 | goto err_out; | |
1781 | } | |
1782 | ||
1783 | rc = bnx2fc_send_fw_fcoe_init_msg(hba); | |
1784 | if (rc) { | |
1785 | printk(KERN_ALERT PFX | |
1786 | "bnx2fc_send_fw_fcoe_init_msg failed - rc = %d\n", rc); | |
1787 | goto err_unbind; | |
1788 | } | |
1789 | ||
1790 | /* | |
1791 | * Wait until the adapter init message is complete, and adapter | |
1792 | * state is UP. | |
1793 | */ | |
1794 | while (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state) && i--) | |
1795 | msleep(BNX2FC_INIT_POLL_TIME); | |
1796 | ||
1797 | if (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state)) { | |
1798 | printk(KERN_ERR PFX "bnx2fc_start: %s failed to initialize. " | |
1799 | "Ignoring...\n", | |
1800 | hba->cnic->netdev->name); | |
1801 | rc = -1; | |
1802 | goto err_unbind; | |
1803 | } | |
1804 | ||
1805 | ||
aea71a02 | 1806 | set_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags); |
853e2bd2 BG |
1807 | return 0; |
1808 | ||
1809 | err_unbind: | |
1810 | bnx2fc_unbind_adapter_devices(hba); | |
1811 | err_out: | |
1812 | return rc; | |
1813 | } | |
1814 | ||
1815 | static void bnx2fc_fw_destroy(struct bnx2fc_hba *hba) | |
1816 | { | |
aea71a02 | 1817 | if (test_and_clear_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags)) { |
853e2bd2 BG |
1818 | if (bnx2fc_send_fw_fcoe_destroy_msg(hba) == 0) { |
1819 | init_timer(&hba->destroy_timer); | |
1820 | hba->destroy_timer.expires = BNX2FC_FW_TIMEOUT + | |
1821 | jiffies; | |
1822 | hba->destroy_timer.function = bnx2fc_destroy_timer; | |
1823 | hba->destroy_timer.data = (unsigned long)hba; | |
1824 | add_timer(&hba->destroy_timer); | |
1825 | wait_event_interruptible(hba->destroy_wait, | |
aea71a02 BPG |
1826 | test_bit(BNX2FC_FLAG_DESTROY_CMPL, |
1827 | &hba->flags)); | |
cd703ae7 | 1828 | clear_bit(BNX2FC_FLAG_DESTROY_CMPL, &hba->flags); |
853e2bd2 BG |
1829 | /* This should never happen */ |
1830 | if (signal_pending(current)) | |
1831 | flush_signals(current); | |
1832 | ||
1833 | del_timer_sync(&hba->destroy_timer); | |
1834 | } | |
1835 | bnx2fc_unbind_adapter_devices(hba); | |
1836 | } | |
1837 | } | |
1838 | ||
1839 | /** | |
1840 | * bnx2fc_ulp_stop - cnic callback to shutdown adapter instance | |
1841 | * | |
1842 | * @handle: transport handle pointing to adapter structure | |
1843 | * | |
1844 | * Driver checks if adapter is already in shutdown mode, if not start | |
1845 | * the shutdown process. | |
1846 | */ | |
1847 | static void bnx2fc_ulp_stop(void *handle) | |
1848 | { | |
aea71a02 BPG |
1849 | struct bnx2fc_hba *hba = handle; |
1850 | struct bnx2fc_interface *interface; | |
853e2bd2 BG |
1851 | |
1852 | printk(KERN_ERR "ULP_STOP\n"); | |
1853 | ||
1854 | mutex_lock(&bnx2fc_dev_lock); | |
aea71a02 BPG |
1855 | if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags)) |
1856 | goto exit; | |
1857 | list_for_each_entry(interface, &if_list, list) { | |
1858 | if (interface->hba == hba) | |
1859 | bnx2fc_stop(interface); | |
1860 | } | |
1861 | BUG_ON(hba->num_ofld_sess != 0); | |
1862 | ||
1863 | mutex_lock(&hba->hba_mutex); | |
1864 | clear_bit(ADAPTER_STATE_UP, &hba->adapter_state); | |
1865 | clear_bit(ADAPTER_STATE_GOING_DOWN, | |
1866 | &hba->adapter_state); | |
1867 | ||
1868 | clear_bit(ADAPTER_STATE_READY, &hba->adapter_state); | |
1869 | mutex_unlock(&hba->hba_mutex); | |
1870 | ||
853e2bd2 | 1871 | bnx2fc_fw_destroy(hba); |
aea71a02 | 1872 | exit: |
853e2bd2 BG |
1873 | mutex_unlock(&bnx2fc_dev_lock); |
1874 | } | |
1875 | ||
aea71a02 | 1876 | static void bnx2fc_start_disc(struct bnx2fc_interface *interface) |
853e2bd2 | 1877 | { |
fd8f8902 | 1878 | struct fcoe_ctlr *ctlr = bnx2fc_to_ctlr(interface); |
853e2bd2 BG |
1879 | struct fc_lport *lport; |
1880 | int wait_cnt = 0; | |
1881 | ||
1882 | BNX2FC_MISC_DBG("Entered %s\n", __func__); | |
1883 | /* Kick off FIP/FLOGI */ | |
aea71a02 | 1884 | if (!test_bit(BNX2FC_FLAG_FW_INIT_DONE, &interface->hba->flags)) { |
853e2bd2 BG |
1885 | printk(KERN_ERR PFX "Init not done yet\n"); |
1886 | return; | |
1887 | } | |
1888 | ||
fd8f8902 | 1889 | lport = ctlr->lp; |
853e2bd2 BG |
1890 | BNX2FC_HBA_DBG(lport, "calling fc_fabric_login\n"); |
1891 | ||
8a5badf1 | 1892 | if (!bnx2fc_link_ok(lport) && interface->enabled) { |
853e2bd2 | 1893 | BNX2FC_HBA_DBG(lport, "ctlr_link_up\n"); |
fd8f8902 | 1894 | fcoe_ctlr_link_up(ctlr); |
853e2bd2 | 1895 | fc_host_port_type(lport->host) = FC_PORTTYPE_NPORT; |
aea71a02 | 1896 | set_bit(ADAPTER_STATE_READY, &interface->hba->adapter_state); |
853e2bd2 BG |
1897 | } |
1898 | ||
1899 | /* wait for the FCF to be selected before issuing FLOGI */ | |
fd8f8902 | 1900 | while (!ctlr->sel_fcf) { |
853e2bd2 BG |
1901 | msleep(250); |
1902 | /* give up after 3 secs */ | |
1903 | if (++wait_cnt > 12) | |
1904 | break; | |
1905 | } | |
627e628f BPG |
1906 | |
1907 | /* Reset max receive frame size to default */ | |
1908 | if (fc_set_mfs(lport, BNX2FC_MFS)) | |
1909 | return; | |
1910 | ||
853e2bd2 BG |
1911 | fc_lport_init(lport); |
1912 | fc_fabric_login(lport); | |
1913 | } | |
1914 | ||
1915 | ||
1916 | /** | |
1917 | * bnx2fc_ulp_init - Initialize an adapter instance | |
1918 | * | |
1919 | * @dev : cnic device handle | |
1920 | * Called from cnic_register_driver() context to initialize all | |
1921 | * enumerated cnic devices. This routine allocates adapter structure | |
1922 | * and other device specific resources. | |
1923 | */ | |
1924 | static void bnx2fc_ulp_init(struct cnic_dev *dev) | |
1925 | { | |
1926 | struct bnx2fc_hba *hba; | |
1927 | int rc = 0; | |
1928 | ||
1929 | BNX2FC_MISC_DBG("Entered %s\n", __func__); | |
1930 | /* bnx2fc works only when bnx2x is loaded */ | |
aea71a02 BPG |
1931 | if (!test_bit(CNIC_F_BNX2X_CLASS, &dev->flags) || |
1932 | (dev->max_fcoe_conn == 0)) { | |
853e2bd2 | 1933 | printk(KERN_ERR PFX "bnx2fc FCoE not supported on %s," |
aea71a02 BPG |
1934 | " flags: %lx fcoe_conn: %d\n", |
1935 | dev->netdev->name, dev->flags, dev->max_fcoe_conn); | |
853e2bd2 BG |
1936 | return; |
1937 | } | |
1938 | ||
aea71a02 | 1939 | hba = bnx2fc_hba_create(dev); |
853e2bd2 BG |
1940 | if (!hba) { |
1941 | printk(KERN_ERR PFX "hba initialization failed\n"); | |
1942 | return; | |
1943 | } | |
1944 | ||
1945 | /* Add HBA to the adapter list */ | |
1946 | mutex_lock(&bnx2fc_dev_lock); | |
aea71a02 | 1947 | list_add_tail(&hba->list, &adapter_list); |
853e2bd2 BG |
1948 | adapter_count++; |
1949 | mutex_unlock(&bnx2fc_dev_lock); | |
1950 | ||
2e499d3c | 1951 | dev->fcoe_cap = &hba->fcoe_cap; |
853e2bd2 BG |
1952 | clear_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic); |
1953 | rc = dev->register_device(dev, CNIC_ULP_FCOE, | |
1954 | (void *) hba); | |
1955 | if (rc) | |
b2a554ff | 1956 | printk(KERN_ERR PFX "register_device failed, rc = %d\n", rc); |
853e2bd2 BG |
1957 | else |
1958 | set_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic); | |
1959 | } | |
1960 | ||
6e89ea3f RL |
1961 | /** |
1962 | * Deperecated: Use bnx2fc_enabled() | |
1963 | */ | |
853e2bd2 BG |
1964 | static int bnx2fc_disable(struct net_device *netdev) |
1965 | { | |
aea71a02 | 1966 | struct bnx2fc_interface *interface; |
fd8f8902 | 1967 | struct fcoe_ctlr *ctlr; |
853e2bd2 BG |
1968 | int rc = 0; |
1969 | ||
6702ca1d | 1970 | rtnl_lock(); |
853e2bd2 BG |
1971 | mutex_lock(&bnx2fc_dev_lock); |
1972 | ||
aea71a02 | 1973 | interface = bnx2fc_interface_lookup(netdev); |
fd8f8902 RL |
1974 | ctlr = bnx2fc_to_ctlr(interface); |
1975 | if (!interface || !ctlr->lp) { | |
853e2bd2 | 1976 | rc = -ENODEV; |
aea71a02 | 1977 | printk(KERN_ERR PFX "bnx2fc_disable: interface or lport not found\n"); |
853e2bd2 | 1978 | } else { |
8a5badf1 | 1979 | interface->enabled = false; |
fd8f8902 RL |
1980 | fcoe_ctlr_link_down(ctlr); |
1981 | fcoe_clean_pending_queue(ctlr->lp); | |
853e2bd2 BG |
1982 | } |
1983 | ||
853e2bd2 BG |
1984 | mutex_unlock(&bnx2fc_dev_lock); |
1985 | rtnl_unlock(); | |
1986 | return rc; | |
1987 | } | |
1988 | ||
6e89ea3f RL |
1989 | /** |
1990 | * Deprecated: Use bnx2fc_enabled() | |
1991 | */ | |
853e2bd2 BG |
1992 | static int bnx2fc_enable(struct net_device *netdev) |
1993 | { | |
aea71a02 | 1994 | struct bnx2fc_interface *interface; |
fd8f8902 | 1995 | struct fcoe_ctlr *ctlr; |
853e2bd2 BG |
1996 | int rc = 0; |
1997 | ||
6702ca1d | 1998 | rtnl_lock(); |
853e2bd2 BG |
1999 | mutex_lock(&bnx2fc_dev_lock); |
2000 | ||
aea71a02 | 2001 | interface = bnx2fc_interface_lookup(netdev); |
fd8f8902 RL |
2002 | ctlr = bnx2fc_to_ctlr(interface); |
2003 | if (!interface || !ctlr->lp) { | |
853e2bd2 | 2004 | rc = -ENODEV; |
aea71a02 | 2005 | printk(KERN_ERR PFX "bnx2fc_enable: interface or lport not found\n"); |
fd8f8902 RL |
2006 | } else if (!bnx2fc_link_ok(ctlr->lp)) { |
2007 | fcoe_ctlr_link_up(ctlr); | |
8a5badf1 BPG |
2008 | interface->enabled = true; |
2009 | } | |
853e2bd2 | 2010 | |
853e2bd2 BG |
2011 | mutex_unlock(&bnx2fc_dev_lock); |
2012 | rtnl_unlock(); | |
2013 | return rc; | |
2014 | } | |
2015 | ||
2016 | /** | |
6e89ea3f RL |
2017 | * bnx2fc_ctlr_enabled() - Enable or disable an FCoE Controller |
2018 | * @cdev: The FCoE Controller that is being enabled or disabled | |
853e2bd2 | 2019 | * |
6e89ea3f RL |
2020 | * fcoe_sysfs will ensure that the state of 'enabled' has |
2021 | * changed, so no checking is necessary here. This routine simply | |
2022 | * calls fcoe_enable or fcoe_disable, both of which are deprecated. | |
2023 | * When those routines are removed the functionality can be merged | |
2024 | * here. | |
2025 | */ | |
2026 | static int bnx2fc_ctlr_enabled(struct fcoe_ctlr_device *cdev) | |
2027 | { | |
2028 | struct fcoe_ctlr *ctlr = fcoe_ctlr_device_priv(cdev); | |
2029 | struct fc_lport *lport = ctlr->lp; | |
2030 | struct net_device *netdev = bnx2fc_netdev(lport); | |
2031 | ||
2032 | switch (cdev->enabled) { | |
2033 | case FCOE_CTLR_ENABLED: | |
2034 | return bnx2fc_enable(netdev); | |
2035 | case FCOE_CTLR_DISABLED: | |
2036 | return bnx2fc_disable(netdev); | |
2037 | case FCOE_CTLR_UNUSED: | |
2038 | default: | |
2039 | return -ENOTSUPP; | |
2040 | }; | |
2041 | } | |
2042 | ||
2043 | enum bnx2fc_create_link_state { | |
2044 | BNX2FC_CREATE_LINK_DOWN, | |
2045 | BNX2FC_CREATE_LINK_UP, | |
2046 | }; | |
2047 | ||
2048 | /** | |
2049 | * _bnx2fc_create() - Create bnx2fc FCoE interface | |
2050 | * @netdev : The net_device object the Ethernet interface to create on | |
2051 | * @fip_mode: The FIP mode for this creation | |
2052 | * @link_state: The ctlr link state on creation | |
853e2bd2 | 2053 | * |
6e89ea3f RL |
2054 | * Called from either the libfcoe 'create' module parameter |
2055 | * via fcoe_create or from fcoe_syfs's ctlr_create file. | |
853e2bd2 | 2056 | * |
6e89ea3f RL |
2057 | * libfcoe's 'create' module parameter is deprecated so some |
2058 | * consolidation of code can be done when that interface is | |
2059 | * removed. | |
853e2bd2 BG |
2060 | * |
2061 | * Returns: 0 for success | |
2062 | */ | |
6e89ea3f RL |
2063 | static int _bnx2fc_create(struct net_device *netdev, |
2064 | enum fip_state fip_mode, | |
2065 | enum bnx2fc_create_link_state link_state) | |
853e2bd2 | 2066 | { |
6e89ea3f | 2067 | struct fcoe_ctlr_device *cdev; |
fd8f8902 | 2068 | struct fcoe_ctlr *ctlr; |
aea71a02 | 2069 | struct bnx2fc_interface *interface; |
853e2bd2 | 2070 | struct bnx2fc_hba *hba; |
7adc5a37 | 2071 | struct net_device *phys_dev = netdev; |
853e2bd2 BG |
2072 | struct fc_lport *lport; |
2073 | struct ethtool_drvinfo drvinfo; | |
2074 | int rc = 0; | |
7adc5a37 | 2075 | int vlan_id = 0; |
853e2bd2 BG |
2076 | |
2077 | BNX2FC_MISC_DBG("Entered bnx2fc_create\n"); | |
2078 | if (fip_mode != FIP_MODE_FABRIC) { | |
2079 | printk(KERN_ERR "fip mode not FABRIC\n"); | |
2080 | return -EIO; | |
2081 | } | |
2082 | ||
6702ca1d NS |
2083 | rtnl_lock(); |
2084 | ||
853e2bd2 BG |
2085 | mutex_lock(&bnx2fc_dev_lock); |
2086 | ||
853e2bd2 BG |
2087 | if (!try_module_get(THIS_MODULE)) { |
2088 | rc = -EINVAL; | |
2089 | goto mod_err; | |
2090 | } | |
2091 | ||
2092 | /* obtain physical netdev */ | |
7adc5a37 | 2093 | if (netdev->priv_flags & IFF_802_1Q_VLAN) |
853e2bd2 | 2094 | phys_dev = vlan_dev_real_dev(netdev); |
7adc5a37 | 2095 | |
853e2bd2 BG |
2096 | /* verify if the physical device is a netxtreme2 device */ |
2097 | if (phys_dev->ethtool_ops && phys_dev->ethtool_ops->get_drvinfo) { | |
2098 | memset(&drvinfo, 0, sizeof(drvinfo)); | |
2099 | phys_dev->ethtool_ops->get_drvinfo(phys_dev, &drvinfo); | |
aea71a02 | 2100 | if (strncmp(drvinfo.driver, "bnx2x", strlen("bnx2x"))) { |
853e2bd2 BG |
2101 | printk(KERN_ERR PFX "Not a netxtreme2 device\n"); |
2102 | rc = -EINVAL; | |
2103 | goto netdev_err; | |
2104 | } | |
2105 | } else { | |
2106 | printk(KERN_ERR PFX "unable to obtain drv_info\n"); | |
2107 | rc = -EINVAL; | |
2108 | goto netdev_err; | |
2109 | } | |
2110 | ||
aea71a02 | 2111 | /* obtain interface and initialize rest of the structure */ |
853e2bd2 BG |
2112 | hba = bnx2fc_hba_lookup(phys_dev); |
2113 | if (!hba) { | |
2114 | rc = -ENODEV; | |
2115 | printk(KERN_ERR PFX "bnx2fc_create: hba not found\n"); | |
2116 | goto netdev_err; | |
2117 | } | |
2118 | ||
aea71a02 | 2119 | if (bnx2fc_interface_lookup(netdev)) { |
853e2bd2 BG |
2120 | rc = -EEXIST; |
2121 | goto netdev_err; | |
2122 | } | |
2123 | ||
aea71a02 BPG |
2124 | interface = bnx2fc_interface_create(hba, netdev, fip_mode); |
2125 | if (!interface) { | |
2126 | printk(KERN_ERR PFX "bnx2fc_interface_create failed\n"); | |
853e2bd2 BG |
2127 | goto ifput_err; |
2128 | } | |
2129 | ||
7adc5a37 BPG |
2130 | if (netdev->priv_flags & IFF_802_1Q_VLAN) { |
2131 | vlan_id = vlan_dev_vlan_id(netdev); | |
2132 | interface->vlan_enabled = 1; | |
2133 | } | |
2134 | ||
fd8f8902 | 2135 | ctlr = bnx2fc_to_ctlr(interface); |
aea71a02 | 2136 | interface->vlan_id = vlan_id; |
aea71a02 BPG |
2137 | |
2138 | interface->timer_work_queue = | |
853e2bd2 | 2139 | create_singlethread_workqueue("bnx2fc_timer_wq"); |
aea71a02 | 2140 | if (!interface->timer_work_queue) { |
853e2bd2 BG |
2141 | printk(KERN_ERR PFX "ulp_init could not create timer_wq\n"); |
2142 | rc = -EINVAL; | |
2143 | goto ifput_err; | |
2144 | } | |
2145 | ||
aea71a02 | 2146 | lport = bnx2fc_if_create(interface, &interface->hba->pcidev->dev, 0); |
853e2bd2 BG |
2147 | if (!lport) { |
2148 | printk(KERN_ERR PFX "Failed to create interface (%s)\n", | |
2149 | netdev->name); | |
853e2bd2 BG |
2150 | rc = -EINVAL; |
2151 | goto if_create_err; | |
2152 | } | |
2153 | ||
aea71a02 BPG |
2154 | /* Add interface to if_list */ |
2155 | list_add_tail(&interface->list, &if_list); | |
2156 | ||
853e2bd2 BG |
2157 | lport->boot_time = jiffies; |
2158 | ||
2159 | /* Make this master N_port */ | |
fd8f8902 | 2160 | ctlr->lp = lport; |
853e2bd2 | 2161 | |
6e89ea3f RL |
2162 | cdev = fcoe_ctlr_to_ctlr_dev(ctlr); |
2163 | ||
2164 | if (link_state == BNX2FC_CREATE_LINK_UP) | |
2165 | cdev->enabled = FCOE_CTLR_ENABLED; | |
2166 | else | |
2167 | cdev->enabled = FCOE_CTLR_DISABLED; | |
2168 | ||
2169 | if (link_state == BNX2FC_CREATE_LINK_UP && | |
2170 | !bnx2fc_link_ok(lport)) { | |
fd8f8902 | 2171 | fcoe_ctlr_link_up(ctlr); |
8a5badf1 BPG |
2172 | fc_host_port_type(lport->host) = FC_PORTTYPE_NPORT; |
2173 | set_bit(ADAPTER_STATE_READY, &interface->hba->adapter_state); | |
2174 | } | |
2175 | ||
aea71a02 BPG |
2176 | BNX2FC_HBA_DBG(lport, "create: START DISC\n"); |
2177 | bnx2fc_start_disc(interface); | |
6e89ea3f RL |
2178 | |
2179 | if (link_state == BNX2FC_CREATE_LINK_UP) | |
2180 | interface->enabled = true; | |
2181 | ||
853e2bd2 BG |
2182 | /* |
2183 | * Release from kref_init in bnx2fc_interface_setup, on success | |
2184 | * lport should be holding a reference taken in bnx2fc_if_create | |
2185 | */ | |
aea71a02 | 2186 | bnx2fc_interface_put(interface); |
853e2bd2 BG |
2187 | /* put netdev that was held while calling dev_get_by_name */ |
2188 | mutex_unlock(&bnx2fc_dev_lock); | |
2189 | rtnl_unlock(); | |
2190 | return 0; | |
2191 | ||
2192 | if_create_err: | |
aea71a02 | 2193 | destroy_workqueue(interface->timer_work_queue); |
853e2bd2 | 2194 | ifput_err: |
013068fa | 2195 | bnx2fc_net_cleanup(interface); |
aea71a02 | 2196 | bnx2fc_interface_put(interface); |
7d742f65 | 2197 | goto mod_err; |
853e2bd2 BG |
2198 | netdev_err: |
2199 | module_put(THIS_MODULE); | |
2200 | mod_err: | |
2201 | mutex_unlock(&bnx2fc_dev_lock); | |
2202 | rtnl_unlock(); | |
2203 | return rc; | |
2204 | } | |
2205 | ||
6e89ea3f RL |
2206 | /** |
2207 | * bnx2fc_create() - Create a bnx2fc interface | |
2208 | * @netdev : The net_device object the Ethernet interface to create on | |
2209 | * @fip_mode: The FIP mode for this creation | |
2210 | * | |
2211 | * Called from fcoe transport | |
2212 | * | |
2213 | * Returns: 0 for success | |
2214 | */ | |
2215 | static int bnx2fc_create(struct net_device *netdev, enum fip_state fip_mode) | |
2216 | { | |
2217 | return _bnx2fc_create(netdev, fip_mode, BNX2FC_CREATE_LINK_UP); | |
2218 | } | |
2219 | ||
2220 | /** | |
2221 | * bnx2fc_ctlr_alloc() - Allocate a bnx2fc interface from fcoe_sysfs | |
2222 | * @netdev: The net_device to be used by the allocated FCoE Controller | |
2223 | * | |
2224 | * This routine is called from fcoe_sysfs. It will start the fcoe_ctlr | |
2225 | * in a link_down state. The allows the user an opportunity to configure | |
2226 | * the FCoE Controller from sysfs before enabling the FCoE Controller. | |
2227 | * | |
2228 | * Creating in with this routine starts the FCoE Controller in Fabric | |
2229 | * mode. The user can change to VN2VN or another mode before enabling. | |
2230 | */ | |
2231 | static int bnx2fc_ctlr_alloc(struct net_device *netdev) | |
2232 | { | |
2233 | return _bnx2fc_create(netdev, FIP_MODE_FABRIC, | |
2234 | BNX2FC_CREATE_LINK_DOWN); | |
2235 | } | |
2236 | ||
853e2bd2 | 2237 | /** |
aea71a02 | 2238 | * bnx2fc_find_hba_for_cnic - maps cnic instance to bnx2fc hba instance |
853e2bd2 BG |
2239 | * |
2240 | * @cnic: Pointer to cnic device instance | |
2241 | * | |
2242 | **/ | |
2243 | static struct bnx2fc_hba *bnx2fc_find_hba_for_cnic(struct cnic_dev *cnic) | |
2244 | { | |
853e2bd2 BG |
2245 | struct bnx2fc_hba *hba; |
2246 | ||
2247 | /* Called with bnx2fc_dev_lock held */ | |
d71fb3bd | 2248 | list_for_each_entry(hba, &adapter_list, list) { |
853e2bd2 BG |
2249 | if (hba->cnic == cnic) |
2250 | return hba; | |
2251 | } | |
2252 | return NULL; | |
2253 | } | |
2254 | ||
aea71a02 BPG |
2255 | static struct bnx2fc_interface *bnx2fc_interface_lookup(struct net_device |
2256 | *netdev) | |
2257 | { | |
2258 | struct bnx2fc_interface *interface; | |
2259 | ||
2260 | /* Called with bnx2fc_dev_lock held */ | |
2261 | list_for_each_entry(interface, &if_list, list) { | |
2262 | if (interface->netdev == netdev) | |
2263 | return interface; | |
2264 | } | |
2265 | return NULL; | |
2266 | } | |
2267 | ||
2268 | static struct bnx2fc_hba *bnx2fc_hba_lookup(struct net_device | |
2269 | *phys_dev) | |
853e2bd2 | 2270 | { |
853e2bd2 BG |
2271 | struct bnx2fc_hba *hba; |
2272 | ||
2273 | /* Called with bnx2fc_dev_lock held */ | |
aea71a02 | 2274 | list_for_each_entry(hba, &adapter_list, list) { |
853e2bd2 BG |
2275 | if (hba->phys_dev == phys_dev) |
2276 | return hba; | |
2277 | } | |
aea71a02 | 2278 | printk(KERN_ERR PFX "adapter_lookup: hba NULL\n"); |
853e2bd2 BG |
2279 | return NULL; |
2280 | } | |
2281 | ||
2282 | /** | |
2283 | * bnx2fc_ulp_exit - shuts down adapter instance and frees all resources | |
2284 | * | |
2285 | * @dev cnic device handle | |
2286 | */ | |
2287 | static void bnx2fc_ulp_exit(struct cnic_dev *dev) | |
2288 | { | |
2289 | struct bnx2fc_hba *hba; | |
aea71a02 | 2290 | struct bnx2fc_interface *interface, *tmp; |
853e2bd2 BG |
2291 | |
2292 | BNX2FC_MISC_DBG("Entered bnx2fc_ulp_exit\n"); | |
2293 | ||
2294 | if (!test_bit(CNIC_F_BNX2X_CLASS, &dev->flags)) { | |
2295 | printk(KERN_ERR PFX "bnx2fc port check: %s, flags: %lx\n", | |
2296 | dev->netdev->name, dev->flags); | |
2297 | return; | |
2298 | } | |
2299 | ||
2300 | mutex_lock(&bnx2fc_dev_lock); | |
2301 | hba = bnx2fc_find_hba_for_cnic(dev); | |
2302 | if (!hba) { | |
2303 | printk(KERN_ERR PFX "bnx2fc_ulp_exit: hba not found, dev 0%p\n", | |
2304 | dev); | |
2305 | mutex_unlock(&bnx2fc_dev_lock); | |
2306 | return; | |
2307 | } | |
2308 | ||
aea71a02 | 2309 | list_del_init(&hba->list); |
853e2bd2 BG |
2310 | adapter_count--; |
2311 | ||
abc49a93 | 2312 | list_for_each_entry_safe(interface, tmp, &if_list, list) |
853e2bd2 | 2313 | /* destroy not called yet, move to quiesced list */ |
abc49a93 | 2314 | if (interface->hba == hba) |
eccdcd02 | 2315 | __bnx2fc_destroy(interface); |
853e2bd2 BG |
2316 | mutex_unlock(&bnx2fc_dev_lock); |
2317 | ||
2318 | bnx2fc_ulp_stop(hba); | |
2319 | /* unregister cnic device */ | |
2320 | if (test_and_clear_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic)) | |
2321 | hba->cnic->unregister_device(hba->cnic, CNIC_ULP_FCOE); | |
aea71a02 | 2322 | bnx2fc_hba_destroy(hba); |
853e2bd2 BG |
2323 | } |
2324 | ||
2325 | /** | |
2326 | * bnx2fc_fcoe_reset - Resets the fcoe | |
2327 | * | |
2328 | * @shost: shost the reset is from | |
2329 | * | |
2330 | * Returns: always 0 | |
2331 | */ | |
2332 | static int bnx2fc_fcoe_reset(struct Scsi_Host *shost) | |
2333 | { | |
2334 | struct fc_lport *lport = shost_priv(shost); | |
2335 | fc_lport_reset(lport); | |
2336 | return 0; | |
2337 | } | |
2338 | ||
2339 | ||
2340 | static bool bnx2fc_match(struct net_device *netdev) | |
2341 | { | |
7adc5a37 BPG |
2342 | struct net_device *phys_dev = netdev; |
2343 | ||
853e2bd2 | 2344 | mutex_lock(&bnx2fc_dev_lock); |
7adc5a37 BPG |
2345 | if (netdev->priv_flags & IFF_802_1Q_VLAN) |
2346 | phys_dev = vlan_dev_real_dev(netdev); | |
853e2bd2 | 2347 | |
7adc5a37 BPG |
2348 | if (bnx2fc_hba_lookup(phys_dev)) { |
2349 | mutex_unlock(&bnx2fc_dev_lock); | |
2350 | return true; | |
853e2bd2 | 2351 | } |
7adc5a37 | 2352 | |
853e2bd2 BG |
2353 | mutex_unlock(&bnx2fc_dev_lock); |
2354 | return false; | |
2355 | } | |
2356 | ||
2357 | ||
2358 | static struct fcoe_transport bnx2fc_transport = { | |
2359 | .name = {"bnx2fc"}, | |
2360 | .attached = false, | |
2361 | .list = LIST_HEAD_INIT(bnx2fc_transport.list), | |
6e89ea3f | 2362 | .alloc = bnx2fc_ctlr_alloc, |
853e2bd2 BG |
2363 | .match = bnx2fc_match, |
2364 | .create = bnx2fc_create, | |
2365 | .destroy = bnx2fc_destroy, | |
2366 | .enable = bnx2fc_enable, | |
2367 | .disable = bnx2fc_disable, | |
2368 | }; | |
2369 | ||
2370 | /** | |
2371 | * bnx2fc_percpu_thread_create - Create a receive thread for an | |
2372 | * online CPU | |
2373 | * | |
2374 | * @cpu: cpu index for the online cpu | |
2375 | */ | |
2376 | static void bnx2fc_percpu_thread_create(unsigned int cpu) | |
2377 | { | |
2378 | struct bnx2fc_percpu_s *p; | |
2379 | struct task_struct *thread; | |
2380 | ||
2381 | p = &per_cpu(bnx2fc_percpu, cpu); | |
2382 | ||
69614270 ED |
2383 | thread = kthread_create_on_node(bnx2fc_percpu_io_thread, |
2384 | (void *)p, cpu_to_node(cpu), | |
2385 | "bnx2fc_thread/%d", cpu); | |
853e2bd2 | 2386 | /* bind thread to the cpu */ |
32248763 | 2387 | if (likely(!IS_ERR(thread))) { |
853e2bd2 BG |
2388 | kthread_bind(thread, cpu); |
2389 | p->iothread = thread; | |
2390 | wake_up_process(thread); | |
2391 | } | |
2392 | } | |
2393 | ||
2394 | static void bnx2fc_percpu_thread_destroy(unsigned int cpu) | |
2395 | { | |
2396 | struct bnx2fc_percpu_s *p; | |
2397 | struct task_struct *thread; | |
2398 | struct bnx2fc_work *work, *tmp; | |
853e2bd2 BG |
2399 | |
2400 | BNX2FC_MISC_DBG("destroying io thread for CPU %d\n", cpu); | |
2401 | ||
2402 | /* Prevent any new work from being queued for this CPU */ | |
2403 | p = &per_cpu(bnx2fc_percpu, cpu); | |
2404 | spin_lock_bh(&p->fp_work_lock); | |
2405 | thread = p->iothread; | |
2406 | p->iothread = NULL; | |
2407 | ||
2408 | ||
2409 | /* Free all work in the list */ | |
32248763 | 2410 | list_for_each_entry_safe(work, tmp, &p->work_list, list) { |
853e2bd2 BG |
2411 | list_del_init(&work->list); |
2412 | bnx2fc_process_cq_compl(work->tgt, work->wqe); | |
2413 | kfree(work); | |
2414 | } | |
2415 | ||
2416 | spin_unlock_bh(&p->fp_work_lock); | |
2417 | ||
2418 | if (thread) | |
2419 | kthread_stop(thread); | |
2420 | } | |
2421 | ||
2422 | /** | |
2423 | * bnx2fc_cpu_callback - Handler for CPU hotplug events | |
2424 | * | |
2425 | * @nfb: The callback data block | |
2426 | * @action: The event triggering the callback | |
2427 | * @hcpu: The index of the CPU that the event is for | |
2428 | * | |
2429 | * This creates or destroys per-CPU data for fcoe | |
2430 | * | |
2431 | * Returns NOTIFY_OK always. | |
2432 | */ | |
2433 | static int bnx2fc_cpu_callback(struct notifier_block *nfb, | |
2434 | unsigned long action, void *hcpu) | |
2435 | { | |
2436 | unsigned cpu = (unsigned long)hcpu; | |
2437 | ||
2438 | switch (action) { | |
2439 | case CPU_ONLINE: | |
2440 | case CPU_ONLINE_FROZEN: | |
2441 | printk(PFX "CPU %x online: Create Rx thread\n", cpu); | |
2442 | bnx2fc_percpu_thread_create(cpu); | |
2443 | break; | |
2444 | case CPU_DEAD: | |
2445 | case CPU_DEAD_FROZEN: | |
2446 | printk(PFX "CPU %x offline: Remove Rx thread\n", cpu); | |
2447 | bnx2fc_percpu_thread_destroy(cpu); | |
2448 | break; | |
2449 | default: | |
2450 | break; | |
2451 | } | |
2452 | return NOTIFY_OK; | |
2453 | } | |
2454 | ||
2455 | /** | |
2456 | * bnx2fc_mod_init - module init entry point | |
2457 | * | |
2458 | * Initialize driver wide global data structures, and register | |
2459 | * with cnic module | |
2460 | **/ | |
2461 | static int __init bnx2fc_mod_init(void) | |
2462 | { | |
2463 | struct fcoe_percpu_s *bg; | |
2464 | struct task_struct *l2_thread; | |
2465 | int rc = 0; | |
2466 | unsigned int cpu = 0; | |
2467 | struct bnx2fc_percpu_s *p; | |
2468 | ||
2469 | printk(KERN_INFO PFX "%s", version); | |
2470 | ||
2471 | /* register as a fcoe transport */ | |
2472 | rc = fcoe_transport_attach(&bnx2fc_transport); | |
2473 | if (rc) { | |
2474 | printk(KERN_ERR "failed to register an fcoe transport, check " | |
2475 | "if libfcoe is loaded\n"); | |
2476 | goto out; | |
2477 | } | |
2478 | ||
2479 | INIT_LIST_HEAD(&adapter_list); | |
aea71a02 | 2480 | INIT_LIST_HEAD(&if_list); |
853e2bd2 BG |
2481 | mutex_init(&bnx2fc_dev_lock); |
2482 | adapter_count = 0; | |
2483 | ||
2484 | /* Attach FC transport template */ | |
2485 | rc = bnx2fc_attach_transport(); | |
2486 | if (rc) | |
2487 | goto detach_ft; | |
2488 | ||
2489 | bnx2fc_wq = alloc_workqueue("bnx2fc", 0, 0); | |
2490 | if (!bnx2fc_wq) { | |
2491 | rc = -ENOMEM; | |
2492 | goto release_bt; | |
2493 | } | |
2494 | ||
2495 | bg = &bnx2fc_global; | |
2496 | skb_queue_head_init(&bg->fcoe_rx_list); | |
2497 | l2_thread = kthread_create(bnx2fc_l2_rcv_thread, | |
2498 | (void *)bg, | |
2499 | "bnx2fc_l2_thread"); | |
2500 | if (IS_ERR(l2_thread)) { | |
2501 | rc = PTR_ERR(l2_thread); | |
2502 | goto free_wq; | |
2503 | } | |
2504 | wake_up_process(l2_thread); | |
2505 | spin_lock_bh(&bg->fcoe_rx_list.lock); | |
2506 | bg->thread = l2_thread; | |
2507 | spin_unlock_bh(&bg->fcoe_rx_list.lock); | |
2508 | ||
2509 | for_each_possible_cpu(cpu) { | |
2510 | p = &per_cpu(bnx2fc_percpu, cpu); | |
2511 | INIT_LIST_HEAD(&p->work_list); | |
2512 | spin_lock_init(&p->fp_work_lock); | |
2513 | } | |
2514 | ||
2515 | for_each_online_cpu(cpu) { | |
2516 | bnx2fc_percpu_thread_create(cpu); | |
2517 | } | |
2518 | ||
2519 | /* Initialize per CPU interrupt thread */ | |
2520 | register_hotcpu_notifier(&bnx2fc_cpu_notifier); | |
2521 | ||
2522 | cnic_register_driver(CNIC_ULP_FCOE, &bnx2fc_cnic_cb); | |
2523 | ||
2524 | return 0; | |
2525 | ||
2526 | free_wq: | |
2527 | destroy_workqueue(bnx2fc_wq); | |
2528 | release_bt: | |
2529 | bnx2fc_release_transport(); | |
2530 | detach_ft: | |
2531 | fcoe_transport_detach(&bnx2fc_transport); | |
2532 | out: | |
2533 | return rc; | |
2534 | } | |
2535 | ||
2536 | static void __exit bnx2fc_mod_exit(void) | |
2537 | { | |
2538 | LIST_HEAD(to_be_deleted); | |
2539 | struct bnx2fc_hba *hba, *next; | |
2540 | struct fcoe_percpu_s *bg; | |
2541 | struct task_struct *l2_thread; | |
2542 | struct sk_buff *skb; | |
2543 | unsigned int cpu = 0; | |
2544 | ||
2545 | /* | |
2546 | * NOTE: Since cnic calls register_driver routine rtnl_lock, | |
2547 | * it will have higher precedence than bnx2fc_dev_lock. | |
2548 | * unregister_device() cannot be called with bnx2fc_dev_lock | |
2549 | * held. | |
2550 | */ | |
2551 | mutex_lock(&bnx2fc_dev_lock); | |
2552 | list_splice(&adapter_list, &to_be_deleted); | |
2553 | INIT_LIST_HEAD(&adapter_list); | |
2554 | adapter_count = 0; | |
2555 | mutex_unlock(&bnx2fc_dev_lock); | |
2556 | ||
2557 | /* Unregister with cnic */ | |
aea71a02 BPG |
2558 | list_for_each_entry_safe(hba, next, &to_be_deleted, list) { |
2559 | list_del_init(&hba->list); | |
2560 | printk(KERN_ERR PFX "MOD_EXIT:destroy hba = 0x%p\n", | |
2561 | hba); | |
853e2bd2 BG |
2562 | bnx2fc_ulp_stop(hba); |
2563 | /* unregister cnic device */ | |
2564 | if (test_and_clear_bit(BNX2FC_CNIC_REGISTERED, | |
2565 | &hba->reg_with_cnic)) | |
aea71a02 BPG |
2566 | hba->cnic->unregister_device(hba->cnic, |
2567 | CNIC_ULP_FCOE); | |
2568 | bnx2fc_hba_destroy(hba); | |
853e2bd2 BG |
2569 | } |
2570 | cnic_unregister_driver(CNIC_ULP_FCOE); | |
2571 | ||
2572 | /* Destroy global thread */ | |
2573 | bg = &bnx2fc_global; | |
2574 | spin_lock_bh(&bg->fcoe_rx_list.lock); | |
2575 | l2_thread = bg->thread; | |
2576 | bg->thread = NULL; | |
2577 | while ((skb = __skb_dequeue(&bg->fcoe_rx_list)) != NULL) | |
2578 | kfree_skb(skb); | |
2579 | ||
2580 | spin_unlock_bh(&bg->fcoe_rx_list.lock); | |
2581 | ||
2582 | if (l2_thread) | |
2583 | kthread_stop(l2_thread); | |
2584 | ||
2585 | unregister_hotcpu_notifier(&bnx2fc_cpu_notifier); | |
2586 | ||
2587 | /* Destroy per cpu threads */ | |
2588 | for_each_online_cpu(cpu) { | |
2589 | bnx2fc_percpu_thread_destroy(cpu); | |
2590 | } | |
2591 | ||
2592 | destroy_workqueue(bnx2fc_wq); | |
2593 | /* | |
2594 | * detach from scsi transport | |
2595 | * must happen after all destroys are done | |
2596 | */ | |
2597 | bnx2fc_release_transport(); | |
2598 | ||
2599 | /* detach from fcoe transport */ | |
2600 | fcoe_transport_detach(&bnx2fc_transport); | |
2601 | } | |
2602 | ||
2603 | module_init(bnx2fc_mod_init); | |
2604 | module_exit(bnx2fc_mod_exit); | |
2605 | ||
8d55e507 | 2606 | static struct fcoe_sysfs_function_template bnx2fc_fcoe_sysfs_templ = { |
6e89ea3f | 2607 | .set_fcoe_ctlr_enabled = bnx2fc_ctlr_enabled, |
b8b3e697 YZ |
2608 | .get_fcoe_ctlr_link_fail = fcoe_ctlr_get_lesb, |
2609 | .get_fcoe_ctlr_vlink_fail = fcoe_ctlr_get_lesb, | |
2610 | .get_fcoe_ctlr_miss_fka = fcoe_ctlr_get_lesb, | |
2611 | .get_fcoe_ctlr_symb_err = fcoe_ctlr_get_lesb, | |
2612 | .get_fcoe_ctlr_err_block = fcoe_ctlr_get_lesb, | |
2613 | .get_fcoe_ctlr_fcs_error = fcoe_ctlr_get_lesb, | |
8d55e507 RL |
2614 | |
2615 | .get_fcoe_fcf_selected = fcoe_fcf_get_selected, | |
2616 | .get_fcoe_fcf_vlan_id = bnx2fc_fcf_get_vlan_id, | |
2617 | }; | |
2618 | ||
853e2bd2 BG |
2619 | static struct fc_function_template bnx2fc_transport_function = { |
2620 | .show_host_node_name = 1, | |
2621 | .show_host_port_name = 1, | |
2622 | .show_host_supported_classes = 1, | |
2623 | .show_host_supported_fc4s = 1, | |
2624 | .show_host_active_fc4s = 1, | |
2625 | .show_host_maxframe_size = 1, | |
2626 | ||
2627 | .show_host_port_id = 1, | |
2628 | .show_host_supported_speeds = 1, | |
2629 | .get_host_speed = fc_get_host_speed, | |
2630 | .show_host_speed = 1, | |
2631 | .show_host_port_type = 1, | |
2632 | .get_host_port_state = fc_get_host_port_state, | |
2633 | .show_host_port_state = 1, | |
2634 | .show_host_symbolic_name = 1, | |
2635 | ||
2636 | .dd_fcrport_size = (sizeof(struct fc_rport_libfc_priv) + | |
2637 | sizeof(struct bnx2fc_rport)), | |
2638 | .show_rport_maxframe_size = 1, | |
2639 | .show_rport_supported_classes = 1, | |
2640 | ||
2641 | .show_host_fabric_name = 1, | |
2642 | .show_starget_node_name = 1, | |
2643 | .show_starget_port_name = 1, | |
2644 | .show_starget_port_id = 1, | |
2645 | .set_rport_dev_loss_tmo = fc_set_rport_loss_tmo, | |
2646 | .show_rport_dev_loss_tmo = 1, | |
2647 | .get_fc_host_stats = bnx2fc_get_host_stats, | |
2648 | ||
2649 | .issue_fc_host_lip = bnx2fc_fcoe_reset, | |
2650 | ||
2651 | .terminate_rport_io = fc_rport_terminate_io, | |
2652 | ||
2653 | .vport_create = bnx2fc_vport_create, | |
2654 | .vport_delete = bnx2fc_vport_destroy, | |
2655 | .vport_disable = bnx2fc_vport_disable, | |
e9a5289c | 2656 | .bsg_request = fc_lport_bsg_request, |
853e2bd2 BG |
2657 | }; |
2658 | ||
2659 | static struct fc_function_template bnx2fc_vport_xport_function = { | |
2660 | .show_host_node_name = 1, | |
2661 | .show_host_port_name = 1, | |
2662 | .show_host_supported_classes = 1, | |
2663 | .show_host_supported_fc4s = 1, | |
2664 | .show_host_active_fc4s = 1, | |
2665 | .show_host_maxframe_size = 1, | |
2666 | ||
2667 | .show_host_port_id = 1, | |
2668 | .show_host_supported_speeds = 1, | |
2669 | .get_host_speed = fc_get_host_speed, | |
2670 | .show_host_speed = 1, | |
2671 | .show_host_port_type = 1, | |
2672 | .get_host_port_state = fc_get_host_port_state, | |
2673 | .show_host_port_state = 1, | |
2674 | .show_host_symbolic_name = 1, | |
2675 | ||
2676 | .dd_fcrport_size = (sizeof(struct fc_rport_libfc_priv) + | |
2677 | sizeof(struct bnx2fc_rport)), | |
2678 | .show_rport_maxframe_size = 1, | |
2679 | .show_rport_supported_classes = 1, | |
2680 | ||
2681 | .show_host_fabric_name = 1, | |
2682 | .show_starget_node_name = 1, | |
2683 | .show_starget_port_name = 1, | |
2684 | .show_starget_port_id = 1, | |
2685 | .set_rport_dev_loss_tmo = fc_set_rport_loss_tmo, | |
2686 | .show_rport_dev_loss_tmo = 1, | |
2687 | .get_fc_host_stats = fc_get_host_stats, | |
2688 | .issue_fc_host_lip = bnx2fc_fcoe_reset, | |
2689 | .terminate_rport_io = fc_rport_terminate_io, | |
e9a5289c | 2690 | .bsg_request = fc_lport_bsg_request, |
853e2bd2 BG |
2691 | }; |
2692 | ||
2693 | /** | |
2694 | * scsi_host_template structure used while registering with SCSI-ml | |
2695 | */ | |
2696 | static struct scsi_host_template bnx2fc_shost_template = { | |
2697 | .module = THIS_MODULE, | |
2698 | .name = "Broadcom Offload FCoE Initiator", | |
2699 | .queuecommand = bnx2fc_queuecommand, | |
2700 | .eh_abort_handler = bnx2fc_eh_abort, /* abts */ | |
2701 | .eh_device_reset_handler = bnx2fc_eh_device_reset, /* lun reset */ | |
2702 | .eh_target_reset_handler = bnx2fc_eh_target_reset, /* tgt reset */ | |
2703 | .eh_host_reset_handler = fc_eh_host_reset, | |
2704 | .slave_alloc = fc_slave_alloc, | |
2705 | .change_queue_depth = fc_change_queue_depth, | |
2706 | .change_queue_type = fc_change_queue_type, | |
2707 | .this_id = -1, | |
2708 | .cmd_per_lun = 3, | |
0ea5c275 | 2709 | .can_queue = BNX2FC_CAN_QUEUE, |
853e2bd2 BG |
2710 | .use_clustering = ENABLE_CLUSTERING, |
2711 | .sg_tablesize = BNX2FC_MAX_BDS_PER_CMD, | |
d450d778 | 2712 | .max_sectors = 1024, |
853e2bd2 BG |
2713 | }; |
2714 | ||
2715 | static struct libfc_function_template bnx2fc_libfc_fcn_templ = { | |
2716 | .frame_send = bnx2fc_xmit, | |
2717 | .elsct_send = bnx2fc_elsct_send, | |
2718 | .fcp_abort_io = bnx2fc_abort_io, | |
2719 | .fcp_cleanup = bnx2fc_cleanup, | |
b8b3e697 | 2720 | .get_lesb = fcoe_get_lesb, |
853e2bd2 BG |
2721 | .rport_event_callback = bnx2fc_rport_event_handler, |
2722 | }; | |
2723 | ||
2724 | /** | |
2725 | * bnx2fc_cnic_cb - global template of bnx2fc - cnic driver interface | |
2726 | * structure carrying callback function pointers | |
2727 | */ | |
2728 | static struct cnic_ulp_ops bnx2fc_cnic_cb = { | |
2729 | .owner = THIS_MODULE, | |
2730 | .cnic_init = bnx2fc_ulp_init, | |
2731 | .cnic_exit = bnx2fc_ulp_exit, | |
2732 | .cnic_start = bnx2fc_ulp_start, | |
2733 | .cnic_stop = bnx2fc_ulp_stop, | |
2734 | .indicate_kcqes = bnx2fc_indicate_kcqe, | |
2735 | .indicate_netevent = bnx2fc_indicate_netevent, | |
2e499d3c | 2736 | .cnic_get_stats = bnx2fc_ulp_get_stats, |
853e2bd2 | 2737 | }; |