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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 AJ |
76 | |
77 | static struct libfc_function_template fnic_transport_template = { | |
78 | .frame_send = fnic_send, | |
78112e55 | 79 | .lport_set_port_id = fnic_set_port_id, |
5df6d737 AJ |
80 | .fcp_abort_io = fnic_empty_scsi_cleanup, |
81 | .fcp_cleanup = fnic_empty_scsi_cleanup, | |
82 | .exch_mgr_reset = fnic_exch_mgr_reset | |
83 | }; | |
84 | ||
85 | static int fnic_slave_alloc(struct scsi_device *sdev) | |
86 | { | |
87 | struct fc_rport *rport = starget_to_rport(scsi_target(sdev)); | |
5df6d737 AJ |
88 | |
89 | sdev->tagged_supported = 1; | |
90 | ||
91 | if (!rport || fc_remote_port_chkready(rport)) | |
92 | return -ENXIO; | |
93 | ||
94 | scsi_activate_tcq(sdev, FNIC_DFLT_QUEUE_DEPTH); | |
5df6d737 AJ |
95 | return 0; |
96 | } | |
97 | ||
98 | static struct scsi_host_template fnic_host_template = { | |
99 | .module = THIS_MODULE, | |
100 | .name = DRV_NAME, | |
101 | .queuecommand = fnic_queuecommand, | |
102 | .eh_abort_handler = fnic_abort_cmd, | |
103 | .eh_device_reset_handler = fnic_device_reset, | |
104 | .eh_host_reset_handler = fnic_host_reset, | |
105 | .slave_alloc = fnic_slave_alloc, | |
106 | .change_queue_depth = fc_change_queue_depth, | |
107 | .change_queue_type = fc_change_queue_type, | |
108 | .this_id = -1, | |
109 | .cmd_per_lun = 3, | |
110 | .can_queue = FNIC_MAX_IO_REQ, | |
111 | .use_clustering = ENABLE_CLUSTERING, | |
112 | .sg_tablesize = FNIC_MAX_SG_DESC_CNT, | |
113 | .max_sectors = 0xffff, | |
114 | .shost_attrs = fnic_attrs, | |
115 | }; | |
116 | ||
8196a934 | 117 | static void |
48586820 | 118 | fnic_set_rport_dev_loss_tmo(struct fc_rport *rport, u32 timeout) |
8196a934 | 119 | { |
48586820 MC |
120 | if (timeout) |
121 | rport->dev_loss_tmo = timeout; | |
122 | else | |
123 | rport->dev_loss_tmo = 1; | |
8196a934 MC |
124 | } |
125 | ||
5df6d737 AJ |
126 | static void fnic_get_host_speed(struct Scsi_Host *shost); |
127 | static struct scsi_transport_template *fnic_fc_transport; | |
128 | static struct fc_host_statistics *fnic_get_stats(struct Scsi_Host *); | |
129 | ||
130 | static struct fc_function_template fnic_fc_functions = { | |
131 | ||
132 | .show_host_node_name = 1, | |
133 | .show_host_port_name = 1, | |
134 | .show_host_supported_classes = 1, | |
135 | .show_host_supported_fc4s = 1, | |
136 | .show_host_active_fc4s = 1, | |
137 | .show_host_maxframe_size = 1, | |
138 | .show_host_port_id = 1, | |
139 | .show_host_supported_speeds = 1, | |
140 | .get_host_speed = fnic_get_host_speed, | |
141 | .show_host_speed = 1, | |
142 | .show_host_port_type = 1, | |
143 | .get_host_port_state = fc_get_host_port_state, | |
144 | .show_host_port_state = 1, | |
145 | .show_host_symbolic_name = 1, | |
146 | .show_rport_maxframe_size = 1, | |
147 | .show_rport_supported_classes = 1, | |
148 | .show_host_fabric_name = 1, | |
149 | .show_starget_node_name = 1, | |
150 | .show_starget_port_name = 1, | |
151 | .show_starget_port_id = 1, | |
152 | .show_rport_dev_loss_tmo = 1, | |
48586820 | 153 | .set_rport_dev_loss_tmo = fnic_set_rport_dev_loss_tmo, |
5df6d737 AJ |
154 | .issue_fc_host_lip = fnic_reset, |
155 | .get_fc_host_stats = fnic_get_stats, | |
156 | .dd_fcrport_size = sizeof(struct fc_rport_libfc_priv), | |
157 | .terminate_rport_io = fnic_terminate_rport_io, | |
76d8737c | 158 | .bsg_request = fc_lport_bsg_request, |
5df6d737 AJ |
159 | }; |
160 | ||
161 | static void fnic_get_host_speed(struct Scsi_Host *shost) | |
162 | { | |
163 | struct fc_lport *lp = shost_priv(shost); | |
164 | struct fnic *fnic = lport_priv(lp); | |
165 | u32 port_speed = vnic_dev_port_speed(fnic->vdev); | |
166 | ||
167 | /* Add in other values as they get defined in fw */ | |
168 | switch (port_speed) { | |
169 | case 10000: | |
170 | fc_host_speed(shost) = FC_PORTSPEED_10GBIT; | |
171 | break; | |
172 | default: | |
173 | fc_host_speed(shost) = FC_PORTSPEED_10GBIT; | |
174 | break; | |
175 | } | |
176 | } | |
177 | ||
178 | static struct fc_host_statistics *fnic_get_stats(struct Scsi_Host *host) | |
179 | { | |
180 | int ret; | |
181 | struct fc_lport *lp = shost_priv(host); | |
182 | struct fnic *fnic = lport_priv(lp); | |
183 | struct fc_host_statistics *stats = &lp->host_stats; | |
184 | struct vnic_stats *vs; | |
185 | unsigned long flags; | |
186 | ||
187 | if (time_before(jiffies, fnic->stats_time + HZ / FNIC_STATS_RATE_LIMIT)) | |
188 | return stats; | |
189 | fnic->stats_time = jiffies; | |
190 | ||
191 | spin_lock_irqsave(&fnic->fnic_lock, flags); | |
192 | ret = vnic_dev_stats_dump(fnic->vdev, &fnic->stats); | |
193 | spin_unlock_irqrestore(&fnic->fnic_lock, flags); | |
194 | ||
195 | if (ret) { | |
196 | FNIC_MAIN_DBG(KERN_DEBUG, fnic->lport->host, | |
197 | "fnic: Get vnic stats failed" | |
198 | " 0x%x", ret); | |
199 | return stats; | |
200 | } | |
201 | vs = fnic->stats; | |
202 | stats->tx_frames = vs->tx.tx_unicast_frames_ok; | |
203 | stats->tx_words = vs->tx.tx_unicast_bytes_ok / 4; | |
204 | stats->rx_frames = vs->rx.rx_unicast_frames_ok; | |
205 | stats->rx_words = vs->rx.rx_unicast_bytes_ok / 4; | |
206 | stats->error_frames = vs->tx.tx_errors + vs->rx.rx_errors; | |
207 | stats->dumped_frames = vs->tx.tx_drops + vs->rx.rx_drop; | |
208 | stats->invalid_crc_count = vs->rx.rx_crc_errors; | |
209 | stats->seconds_since_last_reset = (jiffies - lp->boot_time) / HZ; | |
210 | stats->fcp_input_megabytes = div_u64(fnic->fcp_input_bytes, 1000000); | |
211 | stats->fcp_output_megabytes = div_u64(fnic->fcp_output_bytes, 1000000); | |
212 | ||
213 | return stats; | |
214 | } | |
215 | ||
216 | void fnic_log_q_error(struct fnic *fnic) | |
217 | { | |
218 | unsigned int i; | |
219 | u32 error_status; | |
220 | ||
221 | for (i = 0; i < fnic->raw_wq_count; i++) { | |
222 | error_status = ioread32(&fnic->wq[i].ctrl->error_status); | |
223 | if (error_status) | |
224 | shost_printk(KERN_ERR, fnic->lport->host, | |
225 | "WQ[%d] error_status" | |
226 | " %d\n", i, error_status); | |
227 | } | |
228 | ||
229 | for (i = 0; i < fnic->rq_count; i++) { | |
230 | error_status = ioread32(&fnic->rq[i].ctrl->error_status); | |
231 | if (error_status) | |
232 | shost_printk(KERN_ERR, fnic->lport->host, | |
233 | "RQ[%d] error_status" | |
234 | " %d\n", i, error_status); | |
235 | } | |
236 | ||
237 | for (i = 0; i < fnic->wq_copy_count; i++) { | |
238 | error_status = ioread32(&fnic->wq_copy[i].ctrl->error_status); | |
239 | if (error_status) | |
240 | shost_printk(KERN_ERR, fnic->lport->host, | |
241 | "CWQ[%d] error_status" | |
242 | " %d\n", i, error_status); | |
243 | } | |
244 | } | |
245 | ||
246 | void fnic_handle_link_event(struct fnic *fnic) | |
247 | { | |
248 | unsigned long flags; | |
249 | ||
250 | spin_lock_irqsave(&fnic->fnic_lock, flags); | |
251 | if (fnic->stop_rx_link_events) { | |
252 | spin_unlock_irqrestore(&fnic->fnic_lock, flags); | |
253 | return; | |
254 | } | |
255 | spin_unlock_irqrestore(&fnic->fnic_lock, flags); | |
256 | ||
257 | queue_work(fnic_event_queue, &fnic->link_work); | |
258 | ||
259 | } | |
260 | ||
261 | static int fnic_notify_set(struct fnic *fnic) | |
262 | { | |
263 | int err; | |
264 | ||
265 | switch (vnic_dev_get_intr_mode(fnic->vdev)) { | |
266 | case VNIC_DEV_INTR_MODE_INTX: | |
267 | err = vnic_dev_notify_set(fnic->vdev, FNIC_INTX_NOTIFY); | |
268 | break; | |
269 | case VNIC_DEV_INTR_MODE_MSI: | |
270 | err = vnic_dev_notify_set(fnic->vdev, -1); | |
271 | break; | |
272 | case VNIC_DEV_INTR_MODE_MSIX: | |
273 | err = vnic_dev_notify_set(fnic->vdev, FNIC_MSIX_ERR_NOTIFY); | |
274 | break; | |
275 | default: | |
276 | shost_printk(KERN_ERR, fnic->lport->host, | |
277 | "Interrupt mode should be set up" | |
278 | " before devcmd notify set %d\n", | |
279 | vnic_dev_get_intr_mode(fnic->vdev)); | |
280 | err = -1; | |
281 | break; | |
282 | } | |
283 | ||
284 | return err; | |
285 | } | |
286 | ||
287 | static void fnic_notify_timer(unsigned long data) | |
288 | { | |
289 | struct fnic *fnic = (struct fnic *)data; | |
290 | ||
291 | fnic_handle_link_event(fnic); | |
292 | mod_timer(&fnic->notify_timer, | |
293 | round_jiffies(jiffies + FNIC_NOTIFY_TIMER_PERIOD)); | |
294 | } | |
295 | ||
d3c995f1 HP |
296 | static void fnic_fip_notify_timer(unsigned long data) |
297 | { | |
298 | struct fnic *fnic = (struct fnic *)data; | |
299 | ||
300 | fnic_handle_fip_timer(fnic); | |
301 | } | |
302 | ||
5df6d737 AJ |
303 | static void fnic_notify_timer_start(struct fnic *fnic) |
304 | { | |
305 | switch (vnic_dev_get_intr_mode(fnic->vdev)) { | |
306 | case VNIC_DEV_INTR_MODE_MSI: | |
307 | /* | |
308 | * Schedule first timeout immediately. The driver is | |
309 | * initiatialized and ready to look for link up notification | |
310 | */ | |
311 | mod_timer(&fnic->notify_timer, jiffies); | |
312 | break; | |
313 | default: | |
314 | /* Using intr for notification for INTx/MSI-X */ | |
315 | break; | |
316 | }; | |
317 | } | |
318 | ||
319 | static int fnic_dev_wait(struct vnic_dev *vdev, | |
320 | int (*start)(struct vnic_dev *, int), | |
321 | int (*finished)(struct vnic_dev *, int *), | |
322 | int arg) | |
323 | { | |
324 | unsigned long time; | |
325 | int done; | |
326 | int err; | |
327 | ||
328 | err = start(vdev, arg); | |
329 | if (err) | |
330 | return err; | |
331 | ||
332 | /* Wait for func to complete...2 seconds max */ | |
333 | time = jiffies + (HZ * 2); | |
334 | do { | |
335 | err = finished(vdev, &done); | |
336 | if (err) | |
337 | return err; | |
338 | if (done) | |
339 | return 0; | |
340 | schedule_timeout_uninterruptible(HZ / 10); | |
341 | } while (time_after(time, jiffies)); | |
342 | ||
343 | return -ETIMEDOUT; | |
344 | } | |
345 | ||
346 | static int fnic_cleanup(struct fnic *fnic) | |
347 | { | |
348 | unsigned int i; | |
349 | int err; | |
5df6d737 AJ |
350 | |
351 | vnic_dev_disable(fnic->vdev); | |
352 | for (i = 0; i < fnic->intr_count; i++) | |
353 | vnic_intr_mask(&fnic->intr[i]); | |
354 | ||
355 | for (i = 0; i < fnic->rq_count; i++) { | |
356 | err = vnic_rq_disable(&fnic->rq[i]); | |
357 | if (err) | |
358 | return err; | |
359 | } | |
360 | for (i = 0; i < fnic->raw_wq_count; i++) { | |
361 | err = vnic_wq_disable(&fnic->wq[i]); | |
362 | if (err) | |
363 | return err; | |
364 | } | |
365 | for (i = 0; i < fnic->wq_copy_count; i++) { | |
366 | err = vnic_wq_copy_disable(&fnic->wq_copy[i]); | |
367 | if (err) | |
368 | return err; | |
369 | } | |
370 | ||
371 | /* Clean up completed IOs and FCS frames */ | |
372 | fnic_wq_copy_cmpl_handler(fnic, -1); | |
373 | fnic_wq_cmpl_handler(fnic, -1); | |
374 | fnic_rq_cmpl_handler(fnic, -1); | |
375 | ||
376 | /* Clean up the IOs and FCS frames that have not completed */ | |
377 | for (i = 0; i < fnic->raw_wq_count; i++) | |
378 | vnic_wq_clean(&fnic->wq[i], fnic_free_wq_buf); | |
379 | for (i = 0; i < fnic->rq_count; i++) | |
380 | vnic_rq_clean(&fnic->rq[i], fnic_free_rq_buf); | |
381 | for (i = 0; i < fnic->wq_copy_count; i++) | |
382 | vnic_wq_copy_clean(&fnic->wq_copy[i], | |
383 | fnic_wq_copy_cleanup_handler); | |
384 | ||
385 | for (i = 0; i < fnic->cq_count; i++) | |
386 | vnic_cq_clean(&fnic->cq[i]); | |
387 | for (i = 0; i < fnic->intr_count; i++) | |
388 | vnic_intr_clean(&fnic->intr[i]); | |
389 | ||
5df6d737 AJ |
390 | mempool_destroy(fnic->io_req_pool); |
391 | for (i = 0; i < FNIC_SGL_NUM_CACHES; i++) | |
392 | mempool_destroy(fnic->io_sgl_pool[i]); | |
393 | ||
394 | return 0; | |
395 | } | |
396 | ||
397 | static void fnic_iounmap(struct fnic *fnic) | |
398 | { | |
399 | if (fnic->bar0.vaddr) | |
400 | iounmap(fnic->bar0.vaddr); | |
401 | } | |
402 | ||
78112e55 JE |
403 | /** |
404 | * fnic_get_mac() - get assigned data MAC address for FIP code. | |
405 | * @lport: local port. | |
406 | */ | |
407 | static u8 *fnic_get_mac(struct fc_lport *lport) | |
408 | { | |
409 | struct fnic *fnic = lport_priv(lport); | |
410 | ||
411 | return fnic->data_src_addr; | |
412 | } | |
413 | ||
d3c995f1 HP |
414 | static void fnic_set_vlan(struct fnic *fnic, u16 vlan_id) |
415 | { | |
416 | u16 old_vlan; | |
417 | old_vlan = vnic_dev_set_default_vlan(fnic->vdev, vlan_id); | |
418 | } | |
419 | ||
6f039790 | 420 | static int fnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) |
5df6d737 AJ |
421 | { |
422 | struct Scsi_Host *host; | |
423 | struct fc_lport *lp; | |
424 | struct fnic *fnic; | |
425 | mempool_t *pool; | |
426 | int err; | |
427 | int i; | |
428 | unsigned long flags; | |
429 | ||
430 | /* | |
431 | * Allocate SCSI Host and set up association between host, | |
432 | * local port, and fnic | |
433 | */ | |
86221969 CL |
434 | lp = libfc_host_alloc(&fnic_host_template, sizeof(struct fnic)); |
435 | if (!lp) { | |
436 | printk(KERN_ERR PFX "Unable to alloc libfc local port\n"); | |
5df6d737 AJ |
437 | err = -ENOMEM; |
438 | goto err_out; | |
439 | } | |
86221969 | 440 | host = lp->host; |
5df6d737 AJ |
441 | fnic = lport_priv(lp); |
442 | fnic->lport = lp; | |
78112e55 | 443 | fnic->ctlr.lp = lp; |
5df6d737 AJ |
444 | |
445 | snprintf(fnic->name, sizeof(fnic->name) - 1, "%s%d", DRV_NAME, | |
446 | host->host_no); | |
447 | ||
448 | host->transportt = fnic_fc_transport; | |
449 | ||
450 | err = scsi_init_shared_tag_map(host, FNIC_MAX_IO_REQ); | |
451 | if (err) { | |
452 | shost_printk(KERN_ERR, fnic->lport->host, | |
453 | "Unable to alloc shared tag map\n"); | |
454 | goto err_out_free_hba; | |
455 | } | |
456 | ||
457 | /* Setup PCI resources */ | |
458 | pci_set_drvdata(pdev, fnic); | |
459 | ||
460 | fnic->pdev = pdev; | |
461 | ||
462 | err = pci_enable_device(pdev); | |
463 | if (err) { | |
464 | shost_printk(KERN_ERR, fnic->lport->host, | |
465 | "Cannot enable PCI device, aborting.\n"); | |
466 | goto err_out_free_hba; | |
467 | } | |
468 | ||
469 | err = pci_request_regions(pdev, DRV_NAME); | |
470 | if (err) { | |
471 | shost_printk(KERN_ERR, fnic->lport->host, | |
472 | "Cannot enable PCI resources, aborting\n"); | |
473 | goto err_out_disable_device; | |
474 | } | |
475 | ||
476 | pci_set_master(pdev); | |
477 | ||
478 | /* Query PCI controller on system for DMA addressing | |
479 | * limitation for the device. Try 40-bit first, and | |
480 | * fail to 32-bit. | |
481 | */ | |
e3f47cc7 | 482 | err = pci_set_dma_mask(pdev, DMA_BIT_MASK(40)); |
5df6d737 | 483 | if (err) { |
e3f47cc7 | 484 | err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); |
5df6d737 AJ |
485 | if (err) { |
486 | shost_printk(KERN_ERR, fnic->lport->host, | |
487 | "No usable DMA configuration " | |
488 | "aborting\n"); | |
489 | goto err_out_release_regions; | |
490 | } | |
e3f47cc7 | 491 | err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); |
5df6d737 AJ |
492 | if (err) { |
493 | shost_printk(KERN_ERR, fnic->lport->host, | |
494 | "Unable to obtain 32-bit DMA " | |
495 | "for consistent allocations, aborting.\n"); | |
496 | goto err_out_release_regions; | |
497 | } | |
498 | } else { | |
e3f47cc7 | 499 | err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(40)); |
5df6d737 AJ |
500 | if (err) { |
501 | shost_printk(KERN_ERR, fnic->lport->host, | |
502 | "Unable to obtain 40-bit DMA " | |
503 | "for consistent allocations, aborting.\n"); | |
504 | goto err_out_release_regions; | |
505 | } | |
506 | } | |
507 | ||
508 | /* Map vNIC resources from BAR0 */ | |
509 | if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) { | |
510 | shost_printk(KERN_ERR, fnic->lport->host, | |
511 | "BAR0 not memory-map'able, aborting.\n"); | |
512 | err = -ENODEV; | |
513 | goto err_out_release_regions; | |
514 | } | |
515 | ||
516 | fnic->bar0.vaddr = pci_iomap(pdev, 0, 0); | |
517 | fnic->bar0.bus_addr = pci_resource_start(pdev, 0); | |
518 | fnic->bar0.len = pci_resource_len(pdev, 0); | |
519 | ||
520 | if (!fnic->bar0.vaddr) { | |
521 | shost_printk(KERN_ERR, fnic->lport->host, | |
522 | "Cannot memory-map BAR0 res hdr, " | |
523 | "aborting.\n"); | |
524 | err = -ENODEV; | |
525 | goto err_out_release_regions; | |
526 | } | |
527 | ||
528 | fnic->vdev = vnic_dev_register(NULL, fnic, pdev, &fnic->bar0); | |
529 | if (!fnic->vdev) { | |
530 | shost_printk(KERN_ERR, fnic->lport->host, | |
531 | "vNIC registration failed, " | |
532 | "aborting.\n"); | |
533 | err = -ENODEV; | |
534 | goto err_out_iounmap; | |
535 | } | |
536 | ||
537 | err = fnic_dev_wait(fnic->vdev, vnic_dev_open, | |
538 | vnic_dev_open_done, 0); | |
539 | if (err) { | |
540 | shost_printk(KERN_ERR, fnic->lport->host, | |
541 | "vNIC dev open failed, aborting.\n"); | |
542 | goto err_out_vnic_unregister; | |
543 | } | |
544 | ||
545 | err = vnic_dev_init(fnic->vdev, 0); | |
546 | if (err) { | |
547 | shost_printk(KERN_ERR, fnic->lport->host, | |
548 | "vNIC dev init failed, aborting.\n"); | |
549 | goto err_out_dev_close; | |
550 | } | |
551 | ||
78112e55 | 552 | err = vnic_dev_mac_addr(fnic->vdev, fnic->ctlr.ctl_src_addr); |
5df6d737 AJ |
553 | if (err) { |
554 | shost_printk(KERN_ERR, fnic->lport->host, | |
555 | "vNIC get MAC addr failed \n"); | |
556 | goto err_out_dev_close; | |
557 | } | |
78112e55 JE |
558 | /* set data_src for point-to-point mode and to keep it non-zero */ |
559 | memcpy(fnic->data_src_addr, fnic->ctlr.ctl_src_addr, ETH_ALEN); | |
5df6d737 AJ |
560 | |
561 | /* Get vNIC configuration */ | |
562 | err = fnic_get_vnic_config(fnic); | |
563 | if (err) { | |
564 | shost_printk(KERN_ERR, fnic->lport->host, | |
565 | "Get vNIC configuration failed, " | |
566 | "aborting.\n"); | |
567 | goto err_out_dev_close; | |
568 | } | |
569 | host->max_lun = fnic->config.luns_per_tgt; | |
570 | host->max_id = FNIC_MAX_FCP_TARGET; | |
da87bfab | 571 | host->max_cmd_len = FCOE_MAX_CMD_LEN; |
5df6d737 AJ |
572 | |
573 | fnic_get_res_counts(fnic); | |
574 | ||
575 | err = fnic_set_intr_mode(fnic); | |
576 | if (err) { | |
577 | shost_printk(KERN_ERR, fnic->lport->host, | |
578 | "Failed to set intr mode, " | |
579 | "aborting.\n"); | |
580 | goto err_out_dev_close; | |
581 | } | |
582 | ||
5df6d737 AJ |
583 | err = fnic_alloc_vnic_resources(fnic); |
584 | if (err) { | |
585 | shost_printk(KERN_ERR, fnic->lport->host, | |
586 | "Failed to alloc vNIC resources, " | |
587 | "aborting.\n"); | |
2e76f767 | 588 | goto err_out_clear_intr; |
5df6d737 AJ |
589 | } |
590 | ||
591 | ||
592 | /* initialize all fnic locks */ | |
593 | spin_lock_init(&fnic->fnic_lock); | |
594 | ||
595 | for (i = 0; i < FNIC_WQ_MAX; i++) | |
596 | spin_lock_init(&fnic->wq_lock[i]); | |
597 | ||
598 | for (i = 0; i < FNIC_WQ_COPY_MAX; i++) { | |
599 | spin_lock_init(&fnic->wq_copy_lock[i]); | |
600 | fnic->wq_copy_desc_low[i] = DESC_CLEAN_LOW_WATERMARK; | |
601 | fnic->fw_ack_recd[i] = 0; | |
602 | fnic->fw_ack_index[i] = -1; | |
603 | } | |
604 | ||
605 | for (i = 0; i < FNIC_IO_LOCKS; i++) | |
606 | spin_lock_init(&fnic->io_req_lock[i]); | |
607 | ||
608 | fnic->io_req_pool = mempool_create_slab_pool(2, fnic_io_req_cache); | |
609 | if (!fnic->io_req_pool) | |
610 | goto err_out_free_resources; | |
611 | ||
0c79c742 | 612 | pool = mempool_create_slab_pool(2, fnic_sgl_cache[FNIC_SGL_CACHE_DFLT]); |
5df6d737 AJ |
613 | if (!pool) |
614 | goto err_out_free_ioreq_pool; | |
615 | fnic->io_sgl_pool[FNIC_SGL_CACHE_DFLT] = pool; | |
616 | ||
0c79c742 | 617 | pool = mempool_create_slab_pool(2, fnic_sgl_cache[FNIC_SGL_CACHE_MAX]); |
5df6d737 AJ |
618 | if (!pool) |
619 | goto err_out_free_dflt_pool; | |
620 | fnic->io_sgl_pool[FNIC_SGL_CACHE_MAX] = pool; | |
621 | ||
622 | /* setup vlan config, hw inserts vlan header */ | |
623 | fnic->vlan_hw_insert = 1; | |
624 | fnic->vlan_id = 0; | |
625 | ||
78112e55 JE |
626 | /* Initialize the FIP fcoe_ctrl struct */ |
627 | fnic->ctlr.send = fnic_eth_send; | |
628 | fnic->ctlr.update_mac = fnic_update_mac; | |
629 | fnic->ctlr.get_src_addr = fnic_get_mac; | |
78112e55 JE |
630 | if (fnic->config.flags & VFCF_FIP_CAPABLE) { |
631 | shost_printk(KERN_INFO, fnic->lport->host, | |
632 | "firmware supports FIP\n"); | |
aaa5e569 VSVB |
633 | /* enable directed and multicast */ |
634 | vnic_dev_packet_filter(fnic->vdev, 1, 1, 0, 0, 0); | |
78112e55 JE |
635 | vnic_dev_add_addr(fnic->vdev, FIP_ALL_ENODE_MACS); |
636 | vnic_dev_add_addr(fnic->vdev, fnic->ctlr.ctl_src_addr); | |
d3c995f1 | 637 | fnic->set_vlan = fnic_set_vlan; |
3d902ac0 | 638 | fcoe_ctlr_init(&fnic->ctlr, FIP_MODE_AUTO); |
d3c995f1 HP |
639 | setup_timer(&fnic->fip_timer, fnic_fip_notify_timer, |
640 | (unsigned long)fnic); | |
641 | spin_lock_init(&fnic->vlans_lock); | |
642 | INIT_WORK(&fnic->fip_frame_work, fnic_handle_fip_frame); | |
643 | INIT_WORK(&fnic->event_work, fnic_handle_event); | |
644 | skb_queue_head_init(&fnic->fip_frame_queue); | |
d3c995f1 HP |
645 | INIT_LIST_HEAD(&fnic->evlist); |
646 | INIT_LIST_HEAD(&fnic->vlans); | |
78112e55 JE |
647 | } else { |
648 | shost_printk(KERN_INFO, fnic->lport->host, | |
649 | "firmware uses non-FIP mode\n"); | |
3d902ac0 | 650 | fcoe_ctlr_init(&fnic->ctlr, FIP_MODE_NON_FIP); |
78112e55 | 651 | } |
5df6d737 AJ |
652 | fnic->state = FNIC_IN_FC_MODE; |
653 | ||
03298552 HP |
654 | atomic_set(&fnic->in_flight, 0); |
655 | fnic->state_flags = FNIC_FLAGS_NONE; | |
656 | ||
5df6d737 AJ |
657 | /* Enable hardware stripping of vlan header on ingress */ |
658 | fnic_set_nic_config(fnic, 0, 0, 0, 0, 0, 0, 1); | |
659 | ||
660 | /* Setup notification buffer area */ | |
661 | err = fnic_notify_set(fnic); | |
662 | if (err) { | |
663 | shost_printk(KERN_ERR, fnic->lport->host, | |
664 | "Failed to alloc notify buffer, aborting.\n"); | |
665 | goto err_out_free_max_pool; | |
666 | } | |
667 | ||
668 | /* Setup notify timer when using MSI interrupts */ | |
669 | if (vnic_dev_get_intr_mode(fnic->vdev) == VNIC_DEV_INTR_MODE_MSI) | |
670 | setup_timer(&fnic->notify_timer, | |
671 | fnic_notify_timer, (unsigned long)fnic); | |
672 | ||
673 | /* allocate RQ buffers and post them to RQ*/ | |
674 | for (i = 0; i < fnic->rq_count; i++) { | |
675 | err = vnic_rq_fill(&fnic->rq[i], fnic_alloc_rq_frame); | |
676 | if (err) { | |
677 | shost_printk(KERN_ERR, fnic->lport->host, | |
678 | "fnic_alloc_rq_frame can't alloc " | |
679 | "frame\n"); | |
680 | goto err_out_free_rq_buf; | |
681 | } | |
682 | } | |
683 | ||
684 | /* | |
685 | * Initialization done with PCI system, hardware, firmware. | |
686 | * Add host to SCSI | |
687 | */ | |
688 | err = scsi_add_host(lp->host, &pdev->dev); | |
689 | if (err) { | |
690 | shost_printk(KERN_ERR, fnic->lport->host, | |
691 | "fnic: scsi_add_host failed...exiting\n"); | |
692 | goto err_out_free_rq_buf; | |
693 | } | |
694 | ||
695 | /* Start local port initiatialization */ | |
696 | ||
697 | lp->link_up = 0; | |
5df6d737 | 698 | |
5df6d737 | 699 | lp->max_retry_count = fnic->config.flogi_retries; |
a3666955 | 700 | lp->max_rport_retry_count = fnic->config.plogi_retries; |
5df6d737 AJ |
701 | lp->service_params = (FCP_SPPF_INIT_FCN | FCP_SPPF_RD_XRDY_DIS | |
702 | FCP_SPPF_CONF_COMPL); | |
703 | if (fnic->config.flags & VFCF_FCP_SEQ_LVL_ERR) | |
704 | lp->service_params |= FCP_SPPF_RETRY; | |
705 | ||
706 | lp->boot_time = jiffies; | |
707 | lp->e_d_tov = fnic->config.ed_tov; | |
708 | lp->r_a_tov = fnic->config.ra_tov; | |
709 | lp->link_supported_speeds = FC_PORTSPEED_10GBIT; | |
710 | fc_set_wwnn(lp, fnic->config.node_wwn); | |
711 | fc_set_wwpn(lp, fnic->config.port_wwn); | |
712 | ||
e10f8c66 | 713 | fcoe_libfc_config(lp, &fnic->ctlr, &fnic_transport_template, 0); |
5df6d737 | 714 | |
52ff878c VD |
715 | if (!fc_exch_mgr_alloc(lp, FC_CLASS_3, FCPIO_HOST_EXCH_RANGE_START, |
716 | FCPIO_HOST_EXCH_RANGE_END, NULL)) { | |
717 | err = -ENOMEM; | |
718 | goto err_out_remove_scsi_host; | |
719 | } | |
720 | ||
c693a71d VSVB |
721 | fc_lport_init_stats(lp); |
722 | ||
5df6d737 AJ |
723 | fc_lport_config(lp); |
724 | ||
725 | if (fc_set_mfs(lp, fnic->config.maxdatafieldsize + | |
726 | sizeof(struct fc_frame_header))) { | |
727 | err = -EINVAL; | |
728 | goto err_out_free_exch_mgr; | |
729 | } | |
730 | fc_host_maxframe_size(lp->host) = lp->mfs; | |
48586820 | 731 | fc_host_dev_loss_tmo(lp->host) = fnic->config.port_down_timeout / 1000; |
5df6d737 AJ |
732 | |
733 | sprintf(fc_host_symbolic_name(lp->host), | |
734 | DRV_NAME " v" DRV_VERSION " over %s", fnic->name); | |
735 | ||
736 | spin_lock_irqsave(&fnic_list_lock, flags); | |
737 | list_add_tail(&fnic->list, &fnic_list); | |
738 | spin_unlock_irqrestore(&fnic_list_lock, flags); | |
739 | ||
740 | INIT_WORK(&fnic->link_work, fnic_handle_link); | |
741 | INIT_WORK(&fnic->frame_work, fnic_handle_frame); | |
742 | skb_queue_head_init(&fnic->frame_queue); | |
78112e55 | 743 | skb_queue_head_init(&fnic->tx_queue); |
5df6d737 AJ |
744 | |
745 | /* Enable all queues */ | |
746 | for (i = 0; i < fnic->raw_wq_count; i++) | |
747 | vnic_wq_enable(&fnic->wq[i]); | |
748 | for (i = 0; i < fnic->rq_count; i++) | |
749 | vnic_rq_enable(&fnic->rq[i]); | |
750 | for (i = 0; i < fnic->wq_copy_count; i++) | |
751 | vnic_wq_copy_enable(&fnic->wq_copy[i]); | |
752 | ||
753 | fc_fabric_login(lp); | |
754 | ||
755 | vnic_dev_enable(fnic->vdev); | |
2e76f767 AJ |
756 | |
757 | err = fnic_request_intr(fnic); | |
758 | if (err) { | |
759 | shost_printk(KERN_ERR, fnic->lport->host, | |
760 | "Unable to request irq.\n"); | |
761 | goto err_out_free_exch_mgr; | |
762 | } | |
763 | ||
5df6d737 AJ |
764 | for (i = 0; i < fnic->intr_count; i++) |
765 | vnic_intr_unmask(&fnic->intr[i]); | |
766 | ||
767 | fnic_notify_timer_start(fnic); | |
768 | ||
769 | return 0; | |
770 | ||
771 | err_out_free_exch_mgr: | |
52ff878c | 772 | fc_exch_mgr_free(lp); |
5df6d737 | 773 | err_out_remove_scsi_host: |
78112e55 JE |
774 | fc_remove_host(lp->host); |
775 | scsi_remove_host(lp->host); | |
5df6d737 AJ |
776 | err_out_free_rq_buf: |
777 | for (i = 0; i < fnic->rq_count; i++) | |
778 | vnic_rq_clean(&fnic->rq[i], fnic_free_rq_buf); | |
779 | vnic_dev_notify_unset(fnic->vdev); | |
780 | err_out_free_max_pool: | |
781 | mempool_destroy(fnic->io_sgl_pool[FNIC_SGL_CACHE_MAX]); | |
782 | err_out_free_dflt_pool: | |
783 | mempool_destroy(fnic->io_sgl_pool[FNIC_SGL_CACHE_DFLT]); | |
784 | err_out_free_ioreq_pool: | |
785 | mempool_destroy(fnic->io_req_pool); | |
786 | err_out_free_resources: | |
787 | fnic_free_vnic_resources(fnic); | |
5df6d737 AJ |
788 | err_out_clear_intr: |
789 | fnic_clear_intr_mode(fnic); | |
790 | err_out_dev_close: | |
791 | vnic_dev_close(fnic->vdev); | |
792 | err_out_vnic_unregister: | |
793 | vnic_dev_unregister(fnic->vdev); | |
794 | err_out_iounmap: | |
795 | fnic_iounmap(fnic); | |
796 | err_out_release_regions: | |
797 | pci_release_regions(pdev); | |
798 | err_out_disable_device: | |
799 | pci_disable_device(pdev); | |
800 | err_out_free_hba: | |
801 | scsi_host_put(lp->host); | |
802 | err_out: | |
803 | return err; | |
804 | } | |
805 | ||
6f039790 | 806 | static void fnic_remove(struct pci_dev *pdev) |
5df6d737 AJ |
807 | { |
808 | struct fnic *fnic = pci_get_drvdata(pdev); | |
78112e55 | 809 | struct fc_lport *lp = fnic->lport; |
5df6d737 AJ |
810 | unsigned long flags; |
811 | ||
812 | /* | |
813 | * Mark state so that the workqueue thread stops forwarding | |
814 | * received frames and link events to the local port. ISR and | |
815 | * other threads that can queue work items will also stop | |
816 | * creating work items on the fnic workqueue | |
817 | */ | |
818 | spin_lock_irqsave(&fnic->fnic_lock, flags); | |
819 | fnic->stop_rx_link_events = 1; | |
820 | spin_unlock_irqrestore(&fnic->fnic_lock, flags); | |
821 | ||
822 | if (vnic_dev_get_intr_mode(fnic->vdev) == VNIC_DEV_INTR_MODE_MSI) | |
823 | del_timer_sync(&fnic->notify_timer); | |
824 | ||
825 | /* | |
826 | * Flush the fnic event queue. After this call, there should | |
827 | * be no event queued for this fnic device in the workqueue | |
828 | */ | |
829 | flush_workqueue(fnic_event_queue); | |
830 | skb_queue_purge(&fnic->frame_queue); | |
78112e55 | 831 | skb_queue_purge(&fnic->tx_queue); |
5df6d737 | 832 | |
d3c995f1 HP |
833 | if (fnic->config.flags & VFCF_FIP_CAPABLE) { |
834 | del_timer_sync(&fnic->fip_timer); | |
835 | skb_queue_purge(&fnic->fip_frame_queue); | |
836 | fnic_fcoe_reset_vlans(fnic); | |
837 | fnic_fcoe_evlist_free(fnic); | |
838 | } | |
839 | ||
5df6d737 AJ |
840 | /* |
841 | * Log off the fabric. This stops all remote ports, dns port, | |
842 | * logs off the fabric. This flushes all rport, disc, lport work | |
843 | * before returning | |
844 | */ | |
845 | fc_fabric_logoff(fnic->lport); | |
846 | ||
847 | spin_lock_irqsave(&fnic->fnic_lock, flags); | |
848 | fnic->in_remove = 1; | |
849 | spin_unlock_irqrestore(&fnic->fnic_lock, flags); | |
850 | ||
78112e55 JE |
851 | fcoe_ctlr_destroy(&fnic->ctlr); |
852 | fc_lport_destroy(lp); | |
5df6d737 AJ |
853 | |
854 | /* | |
855 | * This stops the fnic device, masks all interrupts. Completed | |
856 | * CQ entries are drained. Posted WQ/RQ/Copy-WQ entries are | |
857 | * cleaned up | |
858 | */ | |
859 | fnic_cleanup(fnic); | |
860 | ||
861 | BUG_ON(!skb_queue_empty(&fnic->frame_queue)); | |
78112e55 | 862 | BUG_ON(!skb_queue_empty(&fnic->tx_queue)); |
5df6d737 AJ |
863 | |
864 | spin_lock_irqsave(&fnic_list_lock, flags); | |
865 | list_del(&fnic->list); | |
866 | spin_unlock_irqrestore(&fnic_list_lock, flags); | |
867 | ||
868 | fc_remove_host(fnic->lport->host); | |
869 | scsi_remove_host(fnic->lport->host); | |
52ff878c | 870 | fc_exch_mgr_free(fnic->lport); |
5df6d737 | 871 | vnic_dev_notify_unset(fnic->vdev); |
5df6d737 | 872 | fnic_free_intr(fnic); |
2e76f767 | 873 | fnic_free_vnic_resources(fnic); |
5df6d737 AJ |
874 | fnic_clear_intr_mode(fnic); |
875 | vnic_dev_close(fnic->vdev); | |
876 | vnic_dev_unregister(fnic->vdev); | |
877 | fnic_iounmap(fnic); | |
878 | pci_release_regions(pdev); | |
879 | pci_disable_device(pdev); | |
880 | pci_set_drvdata(pdev, NULL); | |
78112e55 | 881 | scsi_host_put(lp->host); |
5df6d737 AJ |
882 | } |
883 | ||
884 | static struct pci_driver fnic_driver = { | |
885 | .name = DRV_NAME, | |
886 | .id_table = fnic_id_table, | |
887 | .probe = fnic_probe, | |
6f039790 | 888 | .remove = fnic_remove, |
5df6d737 AJ |
889 | }; |
890 | ||
891 | static int __init fnic_init_module(void) | |
892 | { | |
893 | size_t len; | |
894 | int err = 0; | |
895 | ||
896 | printk(KERN_INFO PFX "%s, ver %s\n", DRV_DESCRIPTION, DRV_VERSION); | |
897 | ||
4d7007b4 HP |
898 | /* Allocate memory for trace buffer */ |
899 | err = fnic_trace_buf_init(); | |
900 | if (err < 0) { | |
901 | printk(KERN_ERR PFX "Trace buffer initialization Failed " | |
902 | "Fnic Tracing utility is disabled\n"); | |
903 | fnic_trace_free(); | |
904 | } | |
905 | ||
5df6d737 AJ |
906 | /* Create a cache for allocation of default size sgls */ |
907 | len = sizeof(struct fnic_dflt_sgl_list); | |
908 | fnic_sgl_cache[FNIC_SGL_CACHE_DFLT] = kmem_cache_create | |
909 | ("fnic_sgl_dflt", len + FNIC_SG_DESC_ALIGN, FNIC_SG_DESC_ALIGN, | |
0c79c742 | 910 | SLAB_HWCACHE_ALIGN, |
5df6d737 AJ |
911 | NULL); |
912 | if (!fnic_sgl_cache[FNIC_SGL_CACHE_DFLT]) { | |
913 | printk(KERN_ERR PFX "failed to create fnic dflt sgl slab\n"); | |
914 | err = -ENOMEM; | |
915 | goto err_create_fnic_sgl_slab_dflt; | |
916 | } | |
917 | ||
918 | /* Create a cache for allocation of max size sgls*/ | |
919 | len = sizeof(struct fnic_sgl_list); | |
920 | fnic_sgl_cache[FNIC_SGL_CACHE_MAX] = kmem_cache_create | |
921 | ("fnic_sgl_max", len + FNIC_SG_DESC_ALIGN, FNIC_SG_DESC_ALIGN, | |
d3c995f1 HP |
922 | SLAB_HWCACHE_ALIGN, |
923 | NULL); | |
5df6d737 AJ |
924 | if (!fnic_sgl_cache[FNIC_SGL_CACHE_MAX]) { |
925 | printk(KERN_ERR PFX "failed to create fnic max sgl slab\n"); | |
926 | err = -ENOMEM; | |
927 | goto err_create_fnic_sgl_slab_max; | |
928 | } | |
929 | ||
930 | /* Create a cache of io_req structs for use via mempool */ | |
931 | fnic_io_req_cache = kmem_cache_create("fnic_io_req", | |
932 | sizeof(struct fnic_io_req), | |
933 | 0, SLAB_HWCACHE_ALIGN, NULL); | |
934 | if (!fnic_io_req_cache) { | |
935 | printk(KERN_ERR PFX "failed to create fnic io_req slab\n"); | |
936 | err = -ENOMEM; | |
937 | goto err_create_fnic_ioreq_slab; | |
938 | } | |
939 | ||
940 | fnic_event_queue = create_singlethread_workqueue("fnic_event_wq"); | |
941 | if (!fnic_event_queue) { | |
942 | printk(KERN_ERR PFX "fnic work queue create failed\n"); | |
943 | err = -ENOMEM; | |
944 | goto err_create_fnic_workq; | |
945 | } | |
946 | ||
947 | spin_lock_init(&fnic_list_lock); | |
948 | INIT_LIST_HEAD(&fnic_list); | |
949 | ||
e09056b2 CL |
950 | fnic_fip_queue = create_singlethread_workqueue("fnic_fip_q"); |
951 | if (!fnic_fip_queue) { | |
952 | printk(KERN_ERR PFX "fnic FIP work queue create failed\n"); | |
953 | err = -ENOMEM; | |
954 | goto err_create_fip_workq; | |
955 | } | |
956 | ||
5df6d737 AJ |
957 | fnic_fc_transport = fc_attach_transport(&fnic_fc_functions); |
958 | if (!fnic_fc_transport) { | |
959 | printk(KERN_ERR PFX "fc_attach_transport error\n"); | |
960 | err = -ENOMEM; | |
961 | goto err_fc_transport; | |
962 | } | |
963 | ||
964 | /* register the driver with PCI system */ | |
965 | err = pci_register_driver(&fnic_driver); | |
966 | if (err < 0) { | |
967 | printk(KERN_ERR PFX "pci register error\n"); | |
968 | goto err_pci_register; | |
969 | } | |
970 | return err; | |
971 | ||
972 | err_pci_register: | |
973 | fc_release_transport(fnic_fc_transport); | |
974 | err_fc_transport: | |
e09056b2 CL |
975 | destroy_workqueue(fnic_fip_queue); |
976 | err_create_fip_workq: | |
5df6d737 AJ |
977 | destroy_workqueue(fnic_event_queue); |
978 | err_create_fnic_workq: | |
979 | kmem_cache_destroy(fnic_io_req_cache); | |
980 | err_create_fnic_ioreq_slab: | |
981 | kmem_cache_destroy(fnic_sgl_cache[FNIC_SGL_CACHE_MAX]); | |
982 | err_create_fnic_sgl_slab_max: | |
983 | kmem_cache_destroy(fnic_sgl_cache[FNIC_SGL_CACHE_DFLT]); | |
984 | err_create_fnic_sgl_slab_dflt: | |
4d7007b4 | 985 | fnic_trace_free(); |
5df6d737 AJ |
986 | return err; |
987 | } | |
988 | ||
989 | static void __exit fnic_cleanup_module(void) | |
990 | { | |
991 | pci_unregister_driver(&fnic_driver); | |
992 | destroy_workqueue(fnic_event_queue); | |
d3c995f1 HP |
993 | if (fnic_fip_queue) { |
994 | flush_workqueue(fnic_fip_queue); | |
995 | destroy_workqueue(fnic_fip_queue); | |
996 | } | |
5df6d737 AJ |
997 | kmem_cache_destroy(fnic_sgl_cache[FNIC_SGL_CACHE_MAX]); |
998 | kmem_cache_destroy(fnic_sgl_cache[FNIC_SGL_CACHE_DFLT]); | |
999 | kmem_cache_destroy(fnic_io_req_cache); | |
1000 | fc_release_transport(fnic_fc_transport); | |
4d7007b4 | 1001 | fnic_trace_free(); |
5df6d737 AJ |
1002 | } |
1003 | ||
1004 | module_init(fnic_init_module); | |
1005 | module_exit(fnic_cleanup_module); | |
1006 |