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