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5df6d737 AJ |
1 | /* |
2 | * Copyright 2008 Cisco Systems, Inc. All rights reserved. | |
3 | * Copyright 2007 Nuova Systems, Inc. All rights reserved. | |
4 | * | |
5 | * This program is free software; you may redistribute it and/or modify | |
6 | * it under the terms of the GNU General Public License as published by | |
7 | * the Free Software Foundation; version 2 of the License. | |
8 | * | |
9 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
10 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
11 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
12 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS | |
13 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN | |
14 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
15 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
16 | * SOFTWARE. | |
17 | */ | |
18 | #include <linux/module.h> | |
19 | #include <linux/mempool.h> | |
20 | #include <linux/string.h> | |
5a0e3ad6 | 21 | #include <linux/slab.h> |
5df6d737 AJ |
22 | #include <linux/errno.h> |
23 | #include <linux/init.h> | |
24 | #include <linux/pci.h> | |
25 | #include <linux/skbuff.h> | |
26 | #include <linux/interrupt.h> | |
27 | #include <linux/spinlock.h> | |
28 | #include <linux/workqueue.h> | |
78112e55 JE |
29 | #include <linux/if_ether.h> |
30 | #include <scsi/fc/fc_fip.h> | |
5df6d737 AJ |
31 | #include <scsi/scsi_host.h> |
32 | #include <scsi/scsi_transport.h> | |
33 | #include <scsi/scsi_transport_fc.h> | |
34 | #include <scsi/scsi_tcq.h> | |
35 | #include <scsi/libfc.h> | |
36 | #include <scsi/fc_frame.h> | |
37 | ||
38 | #include "vnic_dev.h" | |
39 | #include "vnic_intr.h" | |
40 | #include "vnic_stats.h" | |
41 | #include "fnic_io.h" | |
d3c995f1 | 42 | #include "fnic_fip.h" |
5df6d737 AJ |
43 | #include "fnic.h" |
44 | ||
45 | #define PCI_DEVICE_ID_CISCO_FNIC 0x0045 | |
46 | ||
47 | /* Timer to poll notification area for events. Used for MSI interrupts */ | |
48 | #define FNIC_NOTIFY_TIMER_PERIOD (2 * HZ) | |
49 | ||
50 | static struct kmem_cache *fnic_sgl_cache[FNIC_SGL_NUM_CACHES]; | |
51 | static struct kmem_cache *fnic_io_req_cache; | |
52 | LIST_HEAD(fnic_list); | |
53 | DEFINE_SPINLOCK(fnic_list_lock); | |
54 | ||
55 | /* Supported devices by fnic module */ | |
56 | static struct pci_device_id fnic_id_table[] = { | |
57 | { PCI_DEVICE(PCI_VENDOR_ID_CISCO, PCI_DEVICE_ID_CISCO_FNIC) }, | |
58 | { 0, } | |
59 | }; | |
60 | ||
61 | MODULE_DESCRIPTION(DRV_DESCRIPTION); | |
62 | MODULE_AUTHOR("Abhijeet Joglekar <abjoglek@cisco.com>, " | |
63 | "Joseph R. Eykholt <jeykholt@cisco.com>"); | |
64 | MODULE_LICENSE("GPL v2"); | |
65 | MODULE_VERSION(DRV_VERSION); | |
66 | MODULE_DEVICE_TABLE(pci, fnic_id_table); | |
67 | ||
68 | unsigned int fnic_log_level; | |
69 | module_param(fnic_log_level, int, S_IRUGO|S_IWUSR); | |
70 | MODULE_PARM_DESC(fnic_log_level, "bit mask of fnic logging levels"); | |
71 | ||
4d7007b4 HP |
72 | unsigned int fnic_trace_max_pages = 16; |
73 | module_param(fnic_trace_max_pages, uint, S_IRUGO|S_IWUSR); | |
74 | MODULE_PARM_DESC(fnic_trace_max_pages, "Total allocated memory pages " | |
75 | "for fnic trace buffer"); | |
5df6d737 | 76 | |
abb14148 HS |
77 | unsigned int fnic_fc_trace_max_pages = 64; |
78 | module_param(fnic_fc_trace_max_pages, uint, S_IRUGO|S_IWUSR); | |
79 | MODULE_PARM_DESC(fnic_fc_trace_max_pages, | |
80 | "Total allocated memory pages for fc trace buffer"); | |
81 | ||
fc85799e HP |
82 | static unsigned int fnic_max_qdepth = FNIC_DFLT_QUEUE_DEPTH; |
83 | module_param(fnic_max_qdepth, uint, S_IRUGO|S_IWUSR); | |
84 | MODULE_PARM_DESC(fnic_max_qdepth, "Queue depth to report for each LUN"); | |
85 | ||
5df6d737 AJ |
86 | static struct libfc_function_template fnic_transport_template = { |
87 | .frame_send = fnic_send, | |
78112e55 | 88 | .lport_set_port_id = fnic_set_port_id, |
5df6d737 AJ |
89 | .fcp_abort_io = fnic_empty_scsi_cleanup, |
90 | .fcp_cleanup = fnic_empty_scsi_cleanup, | |
91 | .exch_mgr_reset = fnic_exch_mgr_reset | |
92 | }; | |
93 | ||
94 | static int fnic_slave_alloc(struct scsi_device *sdev) | |
95 | { | |
96 | struct fc_rport *rport = starget_to_rport(scsi_target(sdev)); | |
5df6d737 | 97 | |
5df6d737 AJ |
98 | if (!rport || fc_remote_port_chkready(rport)) |
99 | return -ENXIO; | |
100 | ||
db5ed4df | 101 | scsi_change_queue_depth(sdev, fnic_max_qdepth); |
5df6d737 AJ |
102 | return 0; |
103 | } | |
104 | ||
105 | static struct scsi_host_template fnic_host_template = { | |
106 | .module = THIS_MODULE, | |
107 | .name = DRV_NAME, | |
108 | .queuecommand = fnic_queuecommand, | |
109 | .eh_abort_handler = fnic_abort_cmd, | |
110 | .eh_device_reset_handler = fnic_device_reset, | |
111 | .eh_host_reset_handler = fnic_host_reset, | |
112 | .slave_alloc = fnic_slave_alloc, | |
db5ed4df | 113 | .change_queue_depth = scsi_change_queue_depth, |
5df6d737 AJ |
114 | .this_id = -1, |
115 | .cmd_per_lun = 3, | |
c8ff03c6 | 116 | .can_queue = FNIC_DFLT_IO_REQ, |
5df6d737 AJ |
117 | .use_clustering = ENABLE_CLUSTERING, |
118 | .sg_tablesize = FNIC_MAX_SG_DESC_CNT, | |
119 | .max_sectors = 0xffff, | |
120 | .shost_attrs = fnic_attrs, | |
c40ecc12 | 121 | .track_queue_depth = 1, |
5df6d737 AJ |
122 | }; |
123 | ||
8196a934 | 124 | static void |
48586820 | 125 | fnic_set_rport_dev_loss_tmo(struct fc_rport *rport, u32 timeout) |
8196a934 | 126 | { |
48586820 MC |
127 | if (timeout) |
128 | rport->dev_loss_tmo = timeout; | |
129 | else | |
130 | rport->dev_loss_tmo = 1; | |
8196a934 MC |
131 | } |
132 | ||
5df6d737 AJ |
133 | static void fnic_get_host_speed(struct Scsi_Host *shost); |
134 | static struct scsi_transport_template *fnic_fc_transport; | |
135 | static struct fc_host_statistics *fnic_get_stats(struct Scsi_Host *); | |
1adee040 | 136 | static void fnic_reset_host_stats(struct Scsi_Host *); |
5df6d737 AJ |
137 | |
138 | static struct fc_function_template fnic_fc_functions = { | |
139 | ||
140 | .show_host_node_name = 1, | |
141 | .show_host_port_name = 1, | |
142 | .show_host_supported_classes = 1, | |
143 | .show_host_supported_fc4s = 1, | |
144 | .show_host_active_fc4s = 1, | |
145 | .show_host_maxframe_size = 1, | |
146 | .show_host_port_id = 1, | |
147 | .show_host_supported_speeds = 1, | |
148 | .get_host_speed = fnic_get_host_speed, | |
149 | .show_host_speed = 1, | |
150 | .show_host_port_type = 1, | |
151 | .get_host_port_state = fc_get_host_port_state, | |
152 | .show_host_port_state = 1, | |
153 | .show_host_symbolic_name = 1, | |
154 | .show_rport_maxframe_size = 1, | |
155 | .show_rport_supported_classes = 1, | |
156 | .show_host_fabric_name = 1, | |
157 | .show_starget_node_name = 1, | |
158 | .show_starget_port_name = 1, | |
159 | .show_starget_port_id = 1, | |
160 | .show_rport_dev_loss_tmo = 1, | |
48586820 | 161 | .set_rport_dev_loss_tmo = fnic_set_rport_dev_loss_tmo, |
5df6d737 AJ |
162 | .issue_fc_host_lip = fnic_reset, |
163 | .get_fc_host_stats = fnic_get_stats, | |
1adee040 | 164 | .reset_fc_host_stats = fnic_reset_host_stats, |
5df6d737 AJ |
165 | .dd_fcrport_size = sizeof(struct fc_rport_libfc_priv), |
166 | .terminate_rport_io = fnic_terminate_rport_io, | |
76d8737c | 167 | .bsg_request = fc_lport_bsg_request, |
5df6d737 AJ |
168 | }; |
169 | ||
170 | static void fnic_get_host_speed(struct Scsi_Host *shost) | |
171 | { | |
172 | struct fc_lport *lp = shost_priv(shost); | |
173 | struct fnic *fnic = lport_priv(lp); | |
174 | u32 port_speed = vnic_dev_port_speed(fnic->vdev); | |
175 | ||
176 | /* Add in other values as they get defined in fw */ | |
177 | switch (port_speed) { | |
178 | case 10000: | |
179 | fc_host_speed(shost) = FC_PORTSPEED_10GBIT; | |
180 | break; | |
181 | default: | |
182 | fc_host_speed(shost) = FC_PORTSPEED_10GBIT; | |
183 | break; | |
184 | } | |
185 | } | |
186 | ||
187 | static struct fc_host_statistics *fnic_get_stats(struct Scsi_Host *host) | |
188 | { | |
189 | int ret; | |
190 | struct fc_lport *lp = shost_priv(host); | |
191 | struct fnic *fnic = lport_priv(lp); | |
192 | struct fc_host_statistics *stats = &lp->host_stats; | |
193 | struct vnic_stats *vs; | |
194 | unsigned long flags; | |
195 | ||
196 | if (time_before(jiffies, fnic->stats_time + HZ / FNIC_STATS_RATE_LIMIT)) | |
197 | return stats; | |
198 | fnic->stats_time = jiffies; | |
199 | ||
200 | spin_lock_irqsave(&fnic->fnic_lock, flags); | |
201 | ret = vnic_dev_stats_dump(fnic->vdev, &fnic->stats); | |
202 | spin_unlock_irqrestore(&fnic->fnic_lock, flags); | |
203 | ||
204 | if (ret) { | |
205 | FNIC_MAIN_DBG(KERN_DEBUG, fnic->lport->host, | |
206 | "fnic: Get vnic stats failed" | |
207 | " 0x%x", ret); | |
208 | return stats; | |
209 | } | |
210 | vs = fnic->stats; | |
211 | stats->tx_frames = vs->tx.tx_unicast_frames_ok; | |
212 | stats->tx_words = vs->tx.tx_unicast_bytes_ok / 4; | |
213 | stats->rx_frames = vs->rx.rx_unicast_frames_ok; | |
214 | stats->rx_words = vs->rx.rx_unicast_bytes_ok / 4; | |
215 | stats->error_frames = vs->tx.tx_errors + vs->rx.rx_errors; | |
216 | stats->dumped_frames = vs->tx.tx_drops + vs->rx.rx_drop; | |
217 | stats->invalid_crc_count = vs->rx.rx_crc_errors; | |
1adee040 NM |
218 | stats->seconds_since_last_reset = |
219 | (jiffies - fnic->stats_reset_time) / HZ; | |
5df6d737 AJ |
220 | stats->fcp_input_megabytes = div_u64(fnic->fcp_input_bytes, 1000000); |
221 | stats->fcp_output_megabytes = div_u64(fnic->fcp_output_bytes, 1000000); | |
222 | ||
223 | return stats; | |
224 | } | |
225 | ||
1adee040 NM |
226 | /* |
227 | * fnic_dump_fchost_stats | |
228 | * note : dumps fc_statistics into system logs | |
229 | */ | |
230 | void fnic_dump_fchost_stats(struct Scsi_Host *host, | |
231 | struct fc_host_statistics *stats) | |
232 | { | |
233 | FNIC_MAIN_NOTE(KERN_NOTICE, host, | |
234 | "fnic: seconds since last reset = %llu\n", | |
235 | stats->seconds_since_last_reset); | |
236 | FNIC_MAIN_NOTE(KERN_NOTICE, host, | |
237 | "fnic: tx frames = %llu\n", | |
238 | stats->tx_frames); | |
239 | FNIC_MAIN_NOTE(KERN_NOTICE, host, | |
240 | "fnic: tx words = %llu\n", | |
241 | stats->tx_words); | |
242 | FNIC_MAIN_NOTE(KERN_NOTICE, host, | |
243 | "fnic: rx frames = %llu\n", | |
244 | stats->rx_frames); | |
245 | FNIC_MAIN_NOTE(KERN_NOTICE, host, | |
246 | "fnic: rx words = %llu\n", | |
247 | stats->rx_words); | |
248 | FNIC_MAIN_NOTE(KERN_NOTICE, host, | |
249 | "fnic: lip count = %llu\n", | |
250 | stats->lip_count); | |
251 | FNIC_MAIN_NOTE(KERN_NOTICE, host, | |
252 | "fnic: nos count = %llu\n", | |
253 | stats->nos_count); | |
254 | FNIC_MAIN_NOTE(KERN_NOTICE, host, | |
255 | "fnic: error frames = %llu\n", | |
256 | stats->error_frames); | |
257 | FNIC_MAIN_NOTE(KERN_NOTICE, host, | |
258 | "fnic: dumped frames = %llu\n", | |
259 | stats->dumped_frames); | |
260 | FNIC_MAIN_NOTE(KERN_NOTICE, host, | |
261 | "fnic: link failure count = %llu\n", | |
262 | stats->link_failure_count); | |
263 | FNIC_MAIN_NOTE(KERN_NOTICE, host, | |
264 | "fnic: loss of sync count = %llu\n", | |
265 | stats->loss_of_sync_count); | |
266 | FNIC_MAIN_NOTE(KERN_NOTICE, host, | |
267 | "fnic: loss of signal count = %llu\n", | |
268 | stats->loss_of_signal_count); | |
269 | FNIC_MAIN_NOTE(KERN_NOTICE, host, | |
270 | "fnic: prim seq protocol err count = %llu\n", | |
271 | stats->prim_seq_protocol_err_count); | |
272 | FNIC_MAIN_NOTE(KERN_NOTICE, host, | |
273 | "fnic: invalid tx word count= %llu\n", | |
274 | stats->invalid_tx_word_count); | |
275 | FNIC_MAIN_NOTE(KERN_NOTICE, host, | |
276 | "fnic: invalid crc count = %llu\n", | |
277 | stats->invalid_crc_count); | |
278 | FNIC_MAIN_NOTE(KERN_NOTICE, host, | |
279 | "fnic: fcp input requests = %llu\n", | |
280 | stats->fcp_input_requests); | |
281 | FNIC_MAIN_NOTE(KERN_NOTICE, host, | |
282 | "fnic: fcp output requests = %llu\n", | |
283 | stats->fcp_output_requests); | |
284 | FNIC_MAIN_NOTE(KERN_NOTICE, host, | |
285 | "fnic: fcp control requests = %llu\n", | |
286 | stats->fcp_control_requests); | |
287 | FNIC_MAIN_NOTE(KERN_NOTICE, host, | |
288 | "fnic: fcp input megabytes = %llu\n", | |
289 | stats->fcp_input_megabytes); | |
290 | FNIC_MAIN_NOTE(KERN_NOTICE, host, | |
291 | "fnic: fcp output megabytes = %llu\n", | |
292 | stats->fcp_output_megabytes); | |
293 | return; | |
294 | } | |
295 | ||
296 | /* | |
297 | * fnic_reset_host_stats : clears host stats | |
298 | * note : called when reset_statistics set under sysfs dir | |
299 | */ | |
300 | static void fnic_reset_host_stats(struct Scsi_Host *host) | |
301 | { | |
302 | int ret; | |
303 | struct fc_lport *lp = shost_priv(host); | |
304 | struct fnic *fnic = lport_priv(lp); | |
305 | struct fc_host_statistics *stats; | |
306 | unsigned long flags; | |
307 | ||
308 | /* dump current stats, before clearing them */ | |
309 | stats = fnic_get_stats(host); | |
310 | fnic_dump_fchost_stats(host, stats); | |
311 | ||
312 | spin_lock_irqsave(&fnic->fnic_lock, flags); | |
313 | ret = vnic_dev_stats_clear(fnic->vdev); | |
314 | spin_unlock_irqrestore(&fnic->fnic_lock, flags); | |
315 | ||
316 | if (ret) { | |
317 | FNIC_MAIN_DBG(KERN_DEBUG, fnic->lport->host, | |
318 | "fnic: Reset vnic stats failed" | |
319 | " 0x%x", ret); | |
320 | return; | |
321 | } | |
322 | fnic->stats_reset_time = jiffies; | |
323 | memset(stats, 0, sizeof(*stats)); | |
324 | ||
325 | return; | |
326 | } | |
327 | ||
5df6d737 AJ |
328 | void fnic_log_q_error(struct fnic *fnic) |
329 | { | |
330 | unsigned int i; | |
331 | u32 error_status; | |
332 | ||
333 | for (i = 0; i < fnic->raw_wq_count; i++) { | |
334 | error_status = ioread32(&fnic->wq[i].ctrl->error_status); | |
335 | if (error_status) | |
336 | shost_printk(KERN_ERR, fnic->lport->host, | |
337 | "WQ[%d] error_status" | |
338 | " %d\n", i, error_status); | |
339 | } | |
340 | ||
341 | for (i = 0; i < fnic->rq_count; i++) { | |
342 | error_status = ioread32(&fnic->rq[i].ctrl->error_status); | |
343 | if (error_status) | |
344 | shost_printk(KERN_ERR, fnic->lport->host, | |
345 | "RQ[%d] error_status" | |
346 | " %d\n", i, error_status); | |
347 | } | |
348 | ||
349 | for (i = 0; i < fnic->wq_copy_count; i++) { | |
350 | error_status = ioread32(&fnic->wq_copy[i].ctrl->error_status); | |
351 | if (error_status) | |
352 | shost_printk(KERN_ERR, fnic->lport->host, | |
353 | "CWQ[%d] error_status" | |
354 | " %d\n", i, error_status); | |
355 | } | |
356 | } | |
357 | ||
358 | void fnic_handle_link_event(struct fnic *fnic) | |
359 | { | |
360 | unsigned long flags; | |
361 | ||
362 | spin_lock_irqsave(&fnic->fnic_lock, flags); | |
363 | if (fnic->stop_rx_link_events) { | |
364 | spin_unlock_irqrestore(&fnic->fnic_lock, flags); | |
365 | return; | |
366 | } | |
367 | spin_unlock_irqrestore(&fnic->fnic_lock, flags); | |
368 | ||
369 | queue_work(fnic_event_queue, &fnic->link_work); | |
370 | ||
371 | } | |
372 | ||
373 | static int fnic_notify_set(struct fnic *fnic) | |
374 | { | |
375 | int err; | |
376 | ||
377 | switch (vnic_dev_get_intr_mode(fnic->vdev)) { | |
378 | case VNIC_DEV_INTR_MODE_INTX: | |
379 | err = vnic_dev_notify_set(fnic->vdev, FNIC_INTX_NOTIFY); | |
380 | break; | |
381 | case VNIC_DEV_INTR_MODE_MSI: | |
382 | err = vnic_dev_notify_set(fnic->vdev, -1); | |
383 | break; | |
384 | case VNIC_DEV_INTR_MODE_MSIX: | |
385 | err = vnic_dev_notify_set(fnic->vdev, FNIC_MSIX_ERR_NOTIFY); | |
386 | break; | |
387 | default: | |
388 | shost_printk(KERN_ERR, fnic->lport->host, | |
389 | "Interrupt mode should be set up" | |
390 | " before devcmd notify set %d\n", | |
391 | vnic_dev_get_intr_mode(fnic->vdev)); | |
392 | err = -1; | |
393 | break; | |
394 | } | |
395 | ||
396 | return err; | |
397 | } | |
398 | ||
399 | static void fnic_notify_timer(unsigned long data) | |
400 | { | |
401 | struct fnic *fnic = (struct fnic *)data; | |
402 | ||
403 | fnic_handle_link_event(fnic); | |
404 | mod_timer(&fnic->notify_timer, | |
405 | round_jiffies(jiffies + FNIC_NOTIFY_TIMER_PERIOD)); | |
406 | } | |
407 | ||
d3c995f1 HP |
408 | static void fnic_fip_notify_timer(unsigned long data) |
409 | { | |
410 | struct fnic *fnic = (struct fnic *)data; | |
411 | ||
412 | fnic_handle_fip_timer(fnic); | |
413 | } | |
414 | ||
5df6d737 AJ |
415 | static void fnic_notify_timer_start(struct fnic *fnic) |
416 | { | |
417 | switch (vnic_dev_get_intr_mode(fnic->vdev)) { | |
418 | case VNIC_DEV_INTR_MODE_MSI: | |
419 | /* | |
420 | * Schedule first timeout immediately. The driver is | |
421 | * initiatialized and ready to look for link up notification | |
422 | */ | |
423 | mod_timer(&fnic->notify_timer, jiffies); | |
424 | break; | |
425 | default: | |
426 | /* Using intr for notification for INTx/MSI-X */ | |
427 | break; | |
428 | }; | |
429 | } | |
430 | ||
431 | static int fnic_dev_wait(struct vnic_dev *vdev, | |
432 | int (*start)(struct vnic_dev *, int), | |
433 | int (*finished)(struct vnic_dev *, int *), | |
434 | int arg) | |
435 | { | |
436 | unsigned long time; | |
437 | int done; | |
438 | int err; | |
a232bfbe HS |
439 | int count; |
440 | ||
441 | count = 0; | |
5df6d737 AJ |
442 | |
443 | err = start(vdev, arg); | |
444 | if (err) | |
445 | return err; | |
446 | ||
a232bfbe HS |
447 | /* Wait for func to complete. |
448 | * Sometime schedule_timeout_uninterruptible take long time | |
449 | * to wake up so we do not retry as we are only waiting for | |
450 | * 2 seconds in while loop. By adding count, we make sure | |
451 | * we try atleast three times before returning -ETIMEDOUT | |
452 | */ | |
5df6d737 AJ |
453 | time = jiffies + (HZ * 2); |
454 | do { | |
455 | err = finished(vdev, &done); | |
a232bfbe | 456 | count++; |
5df6d737 AJ |
457 | if (err) |
458 | return err; | |
459 | if (done) | |
460 | return 0; | |
461 | schedule_timeout_uninterruptible(HZ / 10); | |
a232bfbe | 462 | } while (time_after(time, jiffies) || (count < 3)); |
5df6d737 AJ |
463 | |
464 | return -ETIMEDOUT; | |
465 | } | |
466 | ||
467 | static int fnic_cleanup(struct fnic *fnic) | |
468 | { | |
469 | unsigned int i; | |
470 | int err; | |
5df6d737 AJ |
471 | |
472 | vnic_dev_disable(fnic->vdev); | |
473 | for (i = 0; i < fnic->intr_count; i++) | |
474 | vnic_intr_mask(&fnic->intr[i]); | |
475 | ||
476 | for (i = 0; i < fnic->rq_count; i++) { | |
477 | err = vnic_rq_disable(&fnic->rq[i]); | |
478 | if (err) | |
479 | return err; | |
480 | } | |
481 | for (i = 0; i < fnic->raw_wq_count; i++) { | |
482 | err = vnic_wq_disable(&fnic->wq[i]); | |
483 | if (err) | |
484 | return err; | |
485 | } | |
486 | for (i = 0; i < fnic->wq_copy_count; i++) { | |
487 | err = vnic_wq_copy_disable(&fnic->wq_copy[i]); | |
488 | if (err) | |
489 | return err; | |
490 | } | |
491 | ||
492 | /* Clean up completed IOs and FCS frames */ | |
493 | fnic_wq_copy_cmpl_handler(fnic, -1); | |
494 | fnic_wq_cmpl_handler(fnic, -1); | |
495 | fnic_rq_cmpl_handler(fnic, -1); | |
496 | ||
497 | /* Clean up the IOs and FCS frames that have not completed */ | |
498 | for (i = 0; i < fnic->raw_wq_count; i++) | |
499 | vnic_wq_clean(&fnic->wq[i], fnic_free_wq_buf); | |
500 | for (i = 0; i < fnic->rq_count; i++) | |
501 | vnic_rq_clean(&fnic->rq[i], fnic_free_rq_buf); | |
502 | for (i = 0; i < fnic->wq_copy_count; i++) | |
503 | vnic_wq_copy_clean(&fnic->wq_copy[i], | |
504 | fnic_wq_copy_cleanup_handler); | |
505 | ||
506 | for (i = 0; i < fnic->cq_count; i++) | |
507 | vnic_cq_clean(&fnic->cq[i]); | |
508 | for (i = 0; i < fnic->intr_count; i++) | |
509 | vnic_intr_clean(&fnic->intr[i]); | |
510 | ||
5df6d737 AJ |
511 | mempool_destroy(fnic->io_req_pool); |
512 | for (i = 0; i < FNIC_SGL_NUM_CACHES; i++) | |
513 | mempool_destroy(fnic->io_sgl_pool[i]); | |
514 | ||
515 | return 0; | |
516 | } | |
517 | ||
518 | static void fnic_iounmap(struct fnic *fnic) | |
519 | { | |
520 | if (fnic->bar0.vaddr) | |
521 | iounmap(fnic->bar0.vaddr); | |
522 | } | |
523 | ||
78112e55 JE |
524 | /** |
525 | * fnic_get_mac() - get assigned data MAC address for FIP code. | |
526 | * @lport: local port. | |
527 | */ | |
528 | static u8 *fnic_get_mac(struct fc_lport *lport) | |
529 | { | |
530 | struct fnic *fnic = lport_priv(lport); | |
531 | ||
532 | return fnic->data_src_addr; | |
533 | } | |
534 | ||
d3c995f1 HP |
535 | static void fnic_set_vlan(struct fnic *fnic, u16 vlan_id) |
536 | { | |
537 | u16 old_vlan; | |
538 | old_vlan = vnic_dev_set_default_vlan(fnic->vdev, vlan_id); | |
539 | } | |
540 | ||
6f039790 | 541 | static int fnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) |
5df6d737 AJ |
542 | { |
543 | struct Scsi_Host *host; | |
544 | struct fc_lport *lp; | |
545 | struct fnic *fnic; | |
546 | mempool_t *pool; | |
547 | int err; | |
548 | int i; | |
549 | unsigned long flags; | |
550 | ||
551 | /* | |
552 | * Allocate SCSI Host and set up association between host, | |
553 | * local port, and fnic | |
554 | */ | |
86221969 CL |
555 | lp = libfc_host_alloc(&fnic_host_template, sizeof(struct fnic)); |
556 | if (!lp) { | |
557 | printk(KERN_ERR PFX "Unable to alloc libfc local port\n"); | |
5df6d737 AJ |
558 | err = -ENOMEM; |
559 | goto err_out; | |
560 | } | |
86221969 | 561 | host = lp->host; |
5df6d737 AJ |
562 | fnic = lport_priv(lp); |
563 | fnic->lport = lp; | |
78112e55 | 564 | fnic->ctlr.lp = lp; |
5df6d737 AJ |
565 | |
566 | snprintf(fnic->name, sizeof(fnic->name) - 1, "%s%d", DRV_NAME, | |
567 | host->host_no); | |
568 | ||
569 | host->transportt = fnic_fc_transport; | |
570 | ||
67125b02 HP |
571 | err = fnic_stats_debugfs_init(fnic); |
572 | if (err) { | |
573 | shost_printk(KERN_ERR, fnic->lport->host, | |
574 | "Failed to initialize debugfs for stats\n"); | |
575 | fnic_stats_debugfs_remove(fnic); | |
576 | } | |
577 | ||
5df6d737 AJ |
578 | /* Setup PCI resources */ |
579 | pci_set_drvdata(pdev, fnic); | |
580 | ||
581 | fnic->pdev = pdev; | |
582 | ||
583 | err = pci_enable_device(pdev); | |
584 | if (err) { | |
585 | shost_printk(KERN_ERR, fnic->lport->host, | |
586 | "Cannot enable PCI device, aborting.\n"); | |
587 | goto err_out_free_hba; | |
588 | } | |
589 | ||
590 | err = pci_request_regions(pdev, DRV_NAME); | |
591 | if (err) { | |
592 | shost_printk(KERN_ERR, fnic->lport->host, | |
593 | "Cannot enable PCI resources, aborting\n"); | |
594 | goto err_out_disable_device; | |
595 | } | |
596 | ||
597 | pci_set_master(pdev); | |
598 | ||
599 | /* Query PCI controller on system for DMA addressing | |
87aa619c | 600 | * limitation for the device. Try 64-bit first, and |
5df6d737 AJ |
601 | * fail to 32-bit. |
602 | */ | |
87aa619c | 603 | err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64)); |
5df6d737 | 604 | if (err) { |
e3f47cc7 | 605 | err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); |
5df6d737 AJ |
606 | if (err) { |
607 | shost_printk(KERN_ERR, fnic->lport->host, | |
608 | "No usable DMA configuration " | |
609 | "aborting\n"); | |
610 | goto err_out_release_regions; | |
611 | } | |
e3f47cc7 | 612 | err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); |
5df6d737 AJ |
613 | if (err) { |
614 | shost_printk(KERN_ERR, fnic->lport->host, | |
615 | "Unable to obtain 32-bit DMA " | |
616 | "for consistent allocations, aborting.\n"); | |
617 | goto err_out_release_regions; | |
618 | } | |
619 | } else { | |
87aa619c | 620 | err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)); |
5df6d737 AJ |
621 | if (err) { |
622 | shost_printk(KERN_ERR, fnic->lport->host, | |
87aa619c | 623 | "Unable to obtain 64-bit DMA " |
5df6d737 AJ |
624 | "for consistent allocations, aborting.\n"); |
625 | goto err_out_release_regions; | |
626 | } | |
627 | } | |
628 | ||
629 | /* Map vNIC resources from BAR0 */ | |
630 | if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) { | |
631 | shost_printk(KERN_ERR, fnic->lport->host, | |
632 | "BAR0 not memory-map'able, aborting.\n"); | |
633 | err = -ENODEV; | |
634 | goto err_out_release_regions; | |
635 | } | |
636 | ||
637 | fnic->bar0.vaddr = pci_iomap(pdev, 0, 0); | |
638 | fnic->bar0.bus_addr = pci_resource_start(pdev, 0); | |
639 | fnic->bar0.len = pci_resource_len(pdev, 0); | |
640 | ||
641 | if (!fnic->bar0.vaddr) { | |
642 | shost_printk(KERN_ERR, fnic->lport->host, | |
643 | "Cannot memory-map BAR0 res hdr, " | |
644 | "aborting.\n"); | |
645 | err = -ENODEV; | |
646 | goto err_out_release_regions; | |
647 | } | |
648 | ||
649 | fnic->vdev = vnic_dev_register(NULL, fnic, pdev, &fnic->bar0); | |
650 | if (!fnic->vdev) { | |
651 | shost_printk(KERN_ERR, fnic->lport->host, | |
652 | "vNIC registration failed, " | |
653 | "aborting.\n"); | |
654 | err = -ENODEV; | |
655 | goto err_out_iounmap; | |
656 | } | |
657 | ||
658 | err = fnic_dev_wait(fnic->vdev, vnic_dev_open, | |
659 | vnic_dev_open_done, 0); | |
660 | if (err) { | |
661 | shost_printk(KERN_ERR, fnic->lport->host, | |
662 | "vNIC dev open failed, aborting.\n"); | |
663 | goto err_out_vnic_unregister; | |
664 | } | |
665 | ||
666 | err = vnic_dev_init(fnic->vdev, 0); | |
667 | if (err) { | |
668 | shost_printk(KERN_ERR, fnic->lport->host, | |
669 | "vNIC dev init failed, aborting.\n"); | |
670 | goto err_out_dev_close; | |
671 | } | |
672 | ||
78112e55 | 673 | err = vnic_dev_mac_addr(fnic->vdev, fnic->ctlr.ctl_src_addr); |
5df6d737 AJ |
674 | if (err) { |
675 | shost_printk(KERN_ERR, fnic->lport->host, | |
676 | "vNIC get MAC addr failed \n"); | |
677 | goto err_out_dev_close; | |
678 | } | |
78112e55 JE |
679 | /* set data_src for point-to-point mode and to keep it non-zero */ |
680 | memcpy(fnic->data_src_addr, fnic->ctlr.ctl_src_addr, ETH_ALEN); | |
5df6d737 AJ |
681 | |
682 | /* Get vNIC configuration */ | |
683 | err = fnic_get_vnic_config(fnic); | |
684 | if (err) { | |
685 | shost_printk(KERN_ERR, fnic->lport->host, | |
686 | "Get vNIC configuration failed, " | |
687 | "aborting.\n"); | |
688 | goto err_out_dev_close; | |
689 | } | |
fc85799e HP |
690 | |
691 | /* Configure Maximum Outstanding IO reqs*/ | |
692 | if (fnic->config.io_throttle_count != FNIC_UCSM_DFLT_THROTTLE_CNT_BLD) { | |
693 | host->can_queue = min_t(u32, FNIC_MAX_IO_REQ, | |
694 | max_t(u32, FNIC_MIN_IO_REQ, | |
695 | fnic->config.io_throttle_count)); | |
696 | } | |
697 | fnic->fnic_max_tag_id = host->can_queue; | |
698 | ||
5df6d737 AJ |
699 | host->max_lun = fnic->config.luns_per_tgt; |
700 | host->max_id = FNIC_MAX_FCP_TARGET; | |
da87bfab | 701 | host->max_cmd_len = FCOE_MAX_CMD_LEN; |
5df6d737 AJ |
702 | |
703 | fnic_get_res_counts(fnic); | |
704 | ||
705 | err = fnic_set_intr_mode(fnic); | |
706 | if (err) { | |
707 | shost_printk(KERN_ERR, fnic->lport->host, | |
708 | "Failed to set intr mode, " | |
709 | "aborting.\n"); | |
710 | goto err_out_dev_close; | |
711 | } | |
712 | ||
5df6d737 AJ |
713 | err = fnic_alloc_vnic_resources(fnic); |
714 | if (err) { | |
715 | shost_printk(KERN_ERR, fnic->lport->host, | |
716 | "Failed to alloc vNIC resources, " | |
717 | "aborting.\n"); | |
2e76f767 | 718 | goto err_out_clear_intr; |
5df6d737 AJ |
719 | } |
720 | ||
721 | ||
722 | /* initialize all fnic locks */ | |
723 | spin_lock_init(&fnic->fnic_lock); | |
724 | ||
725 | for (i = 0; i < FNIC_WQ_MAX; i++) | |
726 | spin_lock_init(&fnic->wq_lock[i]); | |
727 | ||
728 | for (i = 0; i < FNIC_WQ_COPY_MAX; i++) { | |
729 | spin_lock_init(&fnic->wq_copy_lock[i]); | |
730 | fnic->wq_copy_desc_low[i] = DESC_CLEAN_LOW_WATERMARK; | |
731 | fnic->fw_ack_recd[i] = 0; | |
732 | fnic->fw_ack_index[i] = -1; | |
733 | } | |
734 | ||
735 | for (i = 0; i < FNIC_IO_LOCKS; i++) | |
736 | spin_lock_init(&fnic->io_req_lock[i]); | |
737 | ||
738 | fnic->io_req_pool = mempool_create_slab_pool(2, fnic_io_req_cache); | |
739 | if (!fnic->io_req_pool) | |
740 | goto err_out_free_resources; | |
741 | ||
0c79c742 | 742 | pool = mempool_create_slab_pool(2, fnic_sgl_cache[FNIC_SGL_CACHE_DFLT]); |
5df6d737 AJ |
743 | if (!pool) |
744 | goto err_out_free_ioreq_pool; | |
745 | fnic->io_sgl_pool[FNIC_SGL_CACHE_DFLT] = pool; | |
746 | ||
0c79c742 | 747 | pool = mempool_create_slab_pool(2, fnic_sgl_cache[FNIC_SGL_CACHE_MAX]); |
5df6d737 AJ |
748 | if (!pool) |
749 | goto err_out_free_dflt_pool; | |
750 | fnic->io_sgl_pool[FNIC_SGL_CACHE_MAX] = pool; | |
751 | ||
752 | /* setup vlan config, hw inserts vlan header */ | |
753 | fnic->vlan_hw_insert = 1; | |
754 | fnic->vlan_id = 0; | |
755 | ||
78112e55 JE |
756 | /* Initialize the FIP fcoe_ctrl struct */ |
757 | fnic->ctlr.send = fnic_eth_send; | |
758 | fnic->ctlr.update_mac = fnic_update_mac; | |
759 | fnic->ctlr.get_src_addr = fnic_get_mac; | |
78112e55 JE |
760 | if (fnic->config.flags & VFCF_FIP_CAPABLE) { |
761 | shost_printk(KERN_INFO, fnic->lport->host, | |
762 | "firmware supports FIP\n"); | |
aaa5e569 VSVB |
763 | /* enable directed and multicast */ |
764 | vnic_dev_packet_filter(fnic->vdev, 1, 1, 0, 0, 0); | |
78112e55 JE |
765 | vnic_dev_add_addr(fnic->vdev, FIP_ALL_ENODE_MACS); |
766 | vnic_dev_add_addr(fnic->vdev, fnic->ctlr.ctl_src_addr); | |
d3c995f1 | 767 | fnic->set_vlan = fnic_set_vlan; |
3d902ac0 | 768 | fcoe_ctlr_init(&fnic->ctlr, FIP_MODE_AUTO); |
d3c995f1 HP |
769 | setup_timer(&fnic->fip_timer, fnic_fip_notify_timer, |
770 | (unsigned long)fnic); | |
771 | spin_lock_init(&fnic->vlans_lock); | |
772 | INIT_WORK(&fnic->fip_frame_work, fnic_handle_fip_frame); | |
773 | INIT_WORK(&fnic->event_work, fnic_handle_event); | |
774 | skb_queue_head_init(&fnic->fip_frame_queue); | |
d3c995f1 HP |
775 | INIT_LIST_HEAD(&fnic->evlist); |
776 | INIT_LIST_HEAD(&fnic->vlans); | |
78112e55 JE |
777 | } else { |
778 | shost_printk(KERN_INFO, fnic->lport->host, | |
779 | "firmware uses non-FIP mode\n"); | |
3d902ac0 | 780 | fcoe_ctlr_init(&fnic->ctlr, FIP_MODE_NON_FIP); |
c8ff03c6 | 781 | fnic->ctlr.state = FIP_ST_NON_FIP; |
78112e55 | 782 | } |
5df6d737 AJ |
783 | fnic->state = FNIC_IN_FC_MODE; |
784 | ||
03298552 HP |
785 | atomic_set(&fnic->in_flight, 0); |
786 | fnic->state_flags = FNIC_FLAGS_NONE; | |
787 | ||
5df6d737 AJ |
788 | /* Enable hardware stripping of vlan header on ingress */ |
789 | fnic_set_nic_config(fnic, 0, 0, 0, 0, 0, 0, 1); | |
790 | ||
791 | /* Setup notification buffer area */ | |
792 | err = fnic_notify_set(fnic); | |
793 | if (err) { | |
794 | shost_printk(KERN_ERR, fnic->lport->host, | |
795 | "Failed to alloc notify buffer, aborting.\n"); | |
796 | goto err_out_free_max_pool; | |
797 | } | |
798 | ||
799 | /* Setup notify timer when using MSI interrupts */ | |
800 | if (vnic_dev_get_intr_mode(fnic->vdev) == VNIC_DEV_INTR_MODE_MSI) | |
801 | setup_timer(&fnic->notify_timer, | |
802 | fnic_notify_timer, (unsigned long)fnic); | |
803 | ||
804 | /* allocate RQ buffers and post them to RQ*/ | |
805 | for (i = 0; i < fnic->rq_count; i++) { | |
806 | err = vnic_rq_fill(&fnic->rq[i], fnic_alloc_rq_frame); | |
807 | if (err) { | |
808 | shost_printk(KERN_ERR, fnic->lport->host, | |
809 | "fnic_alloc_rq_frame can't alloc " | |
810 | "frame\n"); | |
811 | goto err_out_free_rq_buf; | |
812 | } | |
813 | } | |
814 | ||
815 | /* | |
816 | * Initialization done with PCI system, hardware, firmware. | |
817 | * Add host to SCSI | |
818 | */ | |
819 | err = scsi_add_host(lp->host, &pdev->dev); | |
820 | if (err) { | |
821 | shost_printk(KERN_ERR, fnic->lport->host, | |
822 | "fnic: scsi_add_host failed...exiting\n"); | |
823 | goto err_out_free_rq_buf; | |
824 | } | |
825 | ||
826 | /* Start local port initiatialization */ | |
827 | ||
828 | lp->link_up = 0; | |
5df6d737 | 829 | |
5df6d737 | 830 | lp->max_retry_count = fnic->config.flogi_retries; |
a3666955 | 831 | lp->max_rport_retry_count = fnic->config.plogi_retries; |
5df6d737 AJ |
832 | lp->service_params = (FCP_SPPF_INIT_FCN | FCP_SPPF_RD_XRDY_DIS | |
833 | FCP_SPPF_CONF_COMPL); | |
834 | if (fnic->config.flags & VFCF_FCP_SEQ_LVL_ERR) | |
835 | lp->service_params |= FCP_SPPF_RETRY; | |
836 | ||
837 | lp->boot_time = jiffies; | |
838 | lp->e_d_tov = fnic->config.ed_tov; | |
839 | lp->r_a_tov = fnic->config.ra_tov; | |
840 | lp->link_supported_speeds = FC_PORTSPEED_10GBIT; | |
841 | fc_set_wwnn(lp, fnic->config.node_wwn); | |
842 | fc_set_wwpn(lp, fnic->config.port_wwn); | |
843 | ||
e10f8c66 | 844 | fcoe_libfc_config(lp, &fnic->ctlr, &fnic_transport_template, 0); |
5df6d737 | 845 | |
52ff878c VD |
846 | if (!fc_exch_mgr_alloc(lp, FC_CLASS_3, FCPIO_HOST_EXCH_RANGE_START, |
847 | FCPIO_HOST_EXCH_RANGE_END, NULL)) { | |
848 | err = -ENOMEM; | |
849 | goto err_out_remove_scsi_host; | |
850 | } | |
851 | ||
c693a71d | 852 | fc_lport_init_stats(lp); |
1adee040 | 853 | fnic->stats_reset_time = jiffies; |
c693a71d | 854 | |
5df6d737 AJ |
855 | fc_lport_config(lp); |
856 | ||
857 | if (fc_set_mfs(lp, fnic->config.maxdatafieldsize + | |
858 | sizeof(struct fc_frame_header))) { | |
859 | err = -EINVAL; | |
860 | goto err_out_free_exch_mgr; | |
861 | } | |
862 | fc_host_maxframe_size(lp->host) = lp->mfs; | |
48586820 | 863 | fc_host_dev_loss_tmo(lp->host) = fnic->config.port_down_timeout / 1000; |
5df6d737 AJ |
864 | |
865 | sprintf(fc_host_symbolic_name(lp->host), | |
866 | DRV_NAME " v" DRV_VERSION " over %s", fnic->name); | |
867 | ||
868 | spin_lock_irqsave(&fnic_list_lock, flags); | |
869 | list_add_tail(&fnic->list, &fnic_list); | |
870 | spin_unlock_irqrestore(&fnic_list_lock, flags); | |
871 | ||
872 | INIT_WORK(&fnic->link_work, fnic_handle_link); | |
873 | INIT_WORK(&fnic->frame_work, fnic_handle_frame); | |
874 | skb_queue_head_init(&fnic->frame_queue); | |
78112e55 | 875 | skb_queue_head_init(&fnic->tx_queue); |
5df6d737 AJ |
876 | |
877 | /* Enable all queues */ | |
878 | for (i = 0; i < fnic->raw_wq_count; i++) | |
879 | vnic_wq_enable(&fnic->wq[i]); | |
880 | for (i = 0; i < fnic->rq_count; i++) | |
881 | vnic_rq_enable(&fnic->rq[i]); | |
882 | for (i = 0; i < fnic->wq_copy_count; i++) | |
883 | vnic_wq_copy_enable(&fnic->wq_copy[i]); | |
884 | ||
885 | fc_fabric_login(lp); | |
886 | ||
887 | vnic_dev_enable(fnic->vdev); | |
2e76f767 AJ |
888 | |
889 | err = fnic_request_intr(fnic); | |
890 | if (err) { | |
891 | shost_printk(KERN_ERR, fnic->lport->host, | |
892 | "Unable to request irq.\n"); | |
893 | goto err_out_free_exch_mgr; | |
894 | } | |
895 | ||
5df6d737 AJ |
896 | for (i = 0; i < fnic->intr_count; i++) |
897 | vnic_intr_unmask(&fnic->intr[i]); | |
898 | ||
899 | fnic_notify_timer_start(fnic); | |
900 | ||
901 | return 0; | |
902 | ||
903 | err_out_free_exch_mgr: | |
52ff878c | 904 | fc_exch_mgr_free(lp); |
5df6d737 | 905 | err_out_remove_scsi_host: |
78112e55 JE |
906 | fc_remove_host(lp->host); |
907 | scsi_remove_host(lp->host); | |
5df6d737 AJ |
908 | err_out_free_rq_buf: |
909 | for (i = 0; i < fnic->rq_count; i++) | |
910 | vnic_rq_clean(&fnic->rq[i], fnic_free_rq_buf); | |
911 | vnic_dev_notify_unset(fnic->vdev); | |
912 | err_out_free_max_pool: | |
913 | mempool_destroy(fnic->io_sgl_pool[FNIC_SGL_CACHE_MAX]); | |
914 | err_out_free_dflt_pool: | |
915 | mempool_destroy(fnic->io_sgl_pool[FNIC_SGL_CACHE_DFLT]); | |
916 | err_out_free_ioreq_pool: | |
917 | mempool_destroy(fnic->io_req_pool); | |
918 | err_out_free_resources: | |
919 | fnic_free_vnic_resources(fnic); | |
5df6d737 AJ |
920 | err_out_clear_intr: |
921 | fnic_clear_intr_mode(fnic); | |
922 | err_out_dev_close: | |
923 | vnic_dev_close(fnic->vdev); | |
924 | err_out_vnic_unregister: | |
925 | vnic_dev_unregister(fnic->vdev); | |
926 | err_out_iounmap: | |
927 | fnic_iounmap(fnic); | |
928 | err_out_release_regions: | |
929 | pci_release_regions(pdev); | |
930 | err_out_disable_device: | |
931 | pci_disable_device(pdev); | |
932 | err_out_free_hba: | |
67125b02 | 933 | fnic_stats_debugfs_remove(fnic); |
5df6d737 AJ |
934 | scsi_host_put(lp->host); |
935 | err_out: | |
936 | return err; | |
937 | } | |
938 | ||
6f039790 | 939 | static void fnic_remove(struct pci_dev *pdev) |
5df6d737 AJ |
940 | { |
941 | struct fnic *fnic = pci_get_drvdata(pdev); | |
78112e55 | 942 | struct fc_lport *lp = fnic->lport; |
5df6d737 AJ |
943 | unsigned long flags; |
944 | ||
945 | /* | |
946 | * Mark state so that the workqueue thread stops forwarding | |
947 | * received frames and link events to the local port. ISR and | |
948 | * other threads that can queue work items will also stop | |
949 | * creating work items on the fnic workqueue | |
950 | */ | |
951 | spin_lock_irqsave(&fnic->fnic_lock, flags); | |
952 | fnic->stop_rx_link_events = 1; | |
953 | spin_unlock_irqrestore(&fnic->fnic_lock, flags); | |
954 | ||
955 | if (vnic_dev_get_intr_mode(fnic->vdev) == VNIC_DEV_INTR_MODE_MSI) | |
956 | del_timer_sync(&fnic->notify_timer); | |
957 | ||
958 | /* | |
959 | * Flush the fnic event queue. After this call, there should | |
960 | * be no event queued for this fnic device in the workqueue | |
961 | */ | |
962 | flush_workqueue(fnic_event_queue); | |
963 | skb_queue_purge(&fnic->frame_queue); | |
78112e55 | 964 | skb_queue_purge(&fnic->tx_queue); |
5df6d737 | 965 | |
d3c995f1 HP |
966 | if (fnic->config.flags & VFCF_FIP_CAPABLE) { |
967 | del_timer_sync(&fnic->fip_timer); | |
968 | skb_queue_purge(&fnic->fip_frame_queue); | |
969 | fnic_fcoe_reset_vlans(fnic); | |
970 | fnic_fcoe_evlist_free(fnic); | |
971 | } | |
972 | ||
5df6d737 AJ |
973 | /* |
974 | * Log off the fabric. This stops all remote ports, dns port, | |
975 | * logs off the fabric. This flushes all rport, disc, lport work | |
976 | * before returning | |
977 | */ | |
978 | fc_fabric_logoff(fnic->lport); | |
979 | ||
980 | spin_lock_irqsave(&fnic->fnic_lock, flags); | |
981 | fnic->in_remove = 1; | |
982 | spin_unlock_irqrestore(&fnic->fnic_lock, flags); | |
983 | ||
78112e55 JE |
984 | fcoe_ctlr_destroy(&fnic->ctlr); |
985 | fc_lport_destroy(lp); | |
67125b02 | 986 | fnic_stats_debugfs_remove(fnic); |
5df6d737 AJ |
987 | |
988 | /* | |
989 | * This stops the fnic device, masks all interrupts. Completed | |
990 | * CQ entries are drained. Posted WQ/RQ/Copy-WQ entries are | |
991 | * cleaned up | |
992 | */ | |
993 | fnic_cleanup(fnic); | |
994 | ||
995 | BUG_ON(!skb_queue_empty(&fnic->frame_queue)); | |
78112e55 | 996 | BUG_ON(!skb_queue_empty(&fnic->tx_queue)); |
5df6d737 AJ |
997 | |
998 | spin_lock_irqsave(&fnic_list_lock, flags); | |
999 | list_del(&fnic->list); | |
1000 | spin_unlock_irqrestore(&fnic_list_lock, flags); | |
1001 | ||
1002 | fc_remove_host(fnic->lport->host); | |
1003 | scsi_remove_host(fnic->lport->host); | |
52ff878c | 1004 | fc_exch_mgr_free(fnic->lport); |
5df6d737 | 1005 | vnic_dev_notify_unset(fnic->vdev); |
5df6d737 | 1006 | fnic_free_intr(fnic); |
2e76f767 | 1007 | fnic_free_vnic_resources(fnic); |
5df6d737 AJ |
1008 | fnic_clear_intr_mode(fnic); |
1009 | vnic_dev_close(fnic->vdev); | |
1010 | vnic_dev_unregister(fnic->vdev); | |
1011 | fnic_iounmap(fnic); | |
1012 | pci_release_regions(pdev); | |
1013 | pci_disable_device(pdev); | |
78112e55 | 1014 | scsi_host_put(lp->host); |
5df6d737 AJ |
1015 | } |
1016 | ||
1017 | static struct pci_driver fnic_driver = { | |
1018 | .name = DRV_NAME, | |
1019 | .id_table = fnic_id_table, | |
1020 | .probe = fnic_probe, | |
6f039790 | 1021 | .remove = fnic_remove, |
5df6d737 AJ |
1022 | }; |
1023 | ||
1024 | static int __init fnic_init_module(void) | |
1025 | { | |
1026 | size_t len; | |
1027 | int err = 0; | |
1028 | ||
1029 | printk(KERN_INFO PFX "%s, ver %s\n", DRV_DESCRIPTION, DRV_VERSION); | |
1030 | ||
67125b02 HP |
1031 | /* Create debugfs entries for fnic */ |
1032 | err = fnic_debugfs_init(); | |
1033 | if (err < 0) { | |
1034 | printk(KERN_ERR PFX "Failed to create fnic directory " | |
1035 | "for tracing and stats logging\n"); | |
1036 | fnic_debugfs_terminate(); | |
1037 | } | |
1038 | ||
4d7007b4 HP |
1039 | /* Allocate memory for trace buffer */ |
1040 | err = fnic_trace_buf_init(); | |
1041 | if (err < 0) { | |
abb14148 HS |
1042 | printk(KERN_ERR PFX |
1043 | "Trace buffer initialization Failed. " | |
1044 | "Fnic Tracing utility is disabled\n"); | |
4d7007b4 HP |
1045 | fnic_trace_free(); |
1046 | } | |
1047 | ||
abb14148 HS |
1048 | /* Allocate memory for fc trace buffer */ |
1049 | err = fnic_fc_trace_init(); | |
1050 | if (err < 0) { | |
1051 | printk(KERN_ERR PFX "FC trace buffer initialization Failed " | |
1052 | "FC frame tracing utility is disabled\n"); | |
1053 | fnic_fc_trace_free(); | |
1054 | } | |
1055 | ||
5df6d737 AJ |
1056 | /* Create a cache for allocation of default size sgls */ |
1057 | len = sizeof(struct fnic_dflt_sgl_list); | |
1058 | fnic_sgl_cache[FNIC_SGL_CACHE_DFLT] = kmem_cache_create | |
1059 | ("fnic_sgl_dflt", len + FNIC_SG_DESC_ALIGN, FNIC_SG_DESC_ALIGN, | |
0c79c742 | 1060 | SLAB_HWCACHE_ALIGN, |
5df6d737 AJ |
1061 | NULL); |
1062 | if (!fnic_sgl_cache[FNIC_SGL_CACHE_DFLT]) { | |
1063 | printk(KERN_ERR PFX "failed to create fnic dflt sgl slab\n"); | |
1064 | err = -ENOMEM; | |
1065 | goto err_create_fnic_sgl_slab_dflt; | |
1066 | } | |
1067 | ||
1068 | /* Create a cache for allocation of max size sgls*/ | |
1069 | len = sizeof(struct fnic_sgl_list); | |
1070 | fnic_sgl_cache[FNIC_SGL_CACHE_MAX] = kmem_cache_create | |
1071 | ("fnic_sgl_max", len + FNIC_SG_DESC_ALIGN, FNIC_SG_DESC_ALIGN, | |
d3c995f1 HP |
1072 | SLAB_HWCACHE_ALIGN, |
1073 | NULL); | |
5df6d737 AJ |
1074 | if (!fnic_sgl_cache[FNIC_SGL_CACHE_MAX]) { |
1075 | printk(KERN_ERR PFX "failed to create fnic max sgl slab\n"); | |
1076 | err = -ENOMEM; | |
1077 | goto err_create_fnic_sgl_slab_max; | |
1078 | } | |
1079 | ||
1080 | /* Create a cache of io_req structs for use via mempool */ | |
1081 | fnic_io_req_cache = kmem_cache_create("fnic_io_req", | |
1082 | sizeof(struct fnic_io_req), | |
1083 | 0, SLAB_HWCACHE_ALIGN, NULL); | |
1084 | if (!fnic_io_req_cache) { | |
1085 | printk(KERN_ERR PFX "failed to create fnic io_req slab\n"); | |
1086 | err = -ENOMEM; | |
1087 | goto err_create_fnic_ioreq_slab; | |
1088 | } | |
1089 | ||
1090 | fnic_event_queue = create_singlethread_workqueue("fnic_event_wq"); | |
1091 | if (!fnic_event_queue) { | |
1092 | printk(KERN_ERR PFX "fnic work queue create failed\n"); | |
1093 | err = -ENOMEM; | |
1094 | goto err_create_fnic_workq; | |
1095 | } | |
1096 | ||
1097 | spin_lock_init(&fnic_list_lock); | |
1098 | INIT_LIST_HEAD(&fnic_list); | |
1099 | ||
e09056b2 CL |
1100 | fnic_fip_queue = create_singlethread_workqueue("fnic_fip_q"); |
1101 | if (!fnic_fip_queue) { | |
1102 | printk(KERN_ERR PFX "fnic FIP work queue create failed\n"); | |
1103 | err = -ENOMEM; | |
1104 | goto err_create_fip_workq; | |
1105 | } | |
1106 | ||
5df6d737 AJ |
1107 | fnic_fc_transport = fc_attach_transport(&fnic_fc_functions); |
1108 | if (!fnic_fc_transport) { | |
1109 | printk(KERN_ERR PFX "fc_attach_transport error\n"); | |
1110 | err = -ENOMEM; | |
1111 | goto err_fc_transport; | |
1112 | } | |
1113 | ||
1114 | /* register the driver with PCI system */ | |
1115 | err = pci_register_driver(&fnic_driver); | |
1116 | if (err < 0) { | |
1117 | printk(KERN_ERR PFX "pci register error\n"); | |
1118 | goto err_pci_register; | |
1119 | } | |
1120 | return err; | |
1121 | ||
1122 | err_pci_register: | |
1123 | fc_release_transport(fnic_fc_transport); | |
1124 | err_fc_transport: | |
e09056b2 CL |
1125 | destroy_workqueue(fnic_fip_queue); |
1126 | err_create_fip_workq: | |
5df6d737 AJ |
1127 | destroy_workqueue(fnic_event_queue); |
1128 | err_create_fnic_workq: | |
1129 | kmem_cache_destroy(fnic_io_req_cache); | |
1130 | err_create_fnic_ioreq_slab: | |
1131 | kmem_cache_destroy(fnic_sgl_cache[FNIC_SGL_CACHE_MAX]); | |
1132 | err_create_fnic_sgl_slab_max: | |
1133 | kmem_cache_destroy(fnic_sgl_cache[FNIC_SGL_CACHE_DFLT]); | |
1134 | err_create_fnic_sgl_slab_dflt: | |
4d7007b4 | 1135 | fnic_trace_free(); |
abb14148 | 1136 | fnic_fc_trace_free(); |
67125b02 | 1137 | fnic_debugfs_terminate(); |
5df6d737 AJ |
1138 | return err; |
1139 | } | |
1140 | ||
1141 | static void __exit fnic_cleanup_module(void) | |
1142 | { | |
1143 | pci_unregister_driver(&fnic_driver); | |
1144 | destroy_workqueue(fnic_event_queue); | |
d3c995f1 HP |
1145 | if (fnic_fip_queue) { |
1146 | flush_workqueue(fnic_fip_queue); | |
1147 | destroy_workqueue(fnic_fip_queue); | |
1148 | } | |
5df6d737 AJ |
1149 | kmem_cache_destroy(fnic_sgl_cache[FNIC_SGL_CACHE_MAX]); |
1150 | kmem_cache_destroy(fnic_sgl_cache[FNIC_SGL_CACHE_DFLT]); | |
1151 | kmem_cache_destroy(fnic_io_req_cache); | |
1152 | fc_release_transport(fnic_fc_transport); | |
4d7007b4 | 1153 | fnic_trace_free(); |
abb14148 | 1154 | fnic_fc_trace_free(); |
67125b02 | 1155 | fnic_debugfs_terminate(); |
5df6d737 AJ |
1156 | } |
1157 | ||
1158 | module_init(fnic_init_module); | |
1159 | module_exit(fnic_cleanup_module); | |
1160 |