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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" | |
42 | #include "fnic.h" | |
43 | ||
44 | #define PCI_DEVICE_ID_CISCO_FNIC 0x0045 | |
45 | ||
46 | /* Timer to poll notification area for events. Used for MSI interrupts */ | |
47 | #define FNIC_NOTIFY_TIMER_PERIOD (2 * HZ) | |
48 | ||
49 | static struct kmem_cache *fnic_sgl_cache[FNIC_SGL_NUM_CACHES]; | |
50 | static struct kmem_cache *fnic_io_req_cache; | |
51 | LIST_HEAD(fnic_list); | |
52 | DEFINE_SPINLOCK(fnic_list_lock); | |
53 | ||
54 | /* Supported devices by fnic module */ | |
55 | static struct pci_device_id fnic_id_table[] = { | |
56 | { PCI_DEVICE(PCI_VENDOR_ID_CISCO, PCI_DEVICE_ID_CISCO_FNIC) }, | |
57 | { 0, } | |
58 | }; | |
59 | ||
60 | MODULE_DESCRIPTION(DRV_DESCRIPTION); | |
61 | MODULE_AUTHOR("Abhijeet Joglekar <abjoglek@cisco.com>, " | |
62 | "Joseph R. Eykholt <jeykholt@cisco.com>"); | |
63 | MODULE_LICENSE("GPL v2"); | |
64 | MODULE_VERSION(DRV_VERSION); | |
65 | MODULE_DEVICE_TABLE(pci, fnic_id_table); | |
66 | ||
67 | unsigned int fnic_log_level; | |
68 | module_param(fnic_log_level, int, S_IRUGO|S_IWUSR); | |
69 | MODULE_PARM_DESC(fnic_log_level, "bit mask of fnic logging levels"); | |
70 | ||
71 | ||
72 | static struct libfc_function_template fnic_transport_template = { | |
73 | .frame_send = fnic_send, | |
78112e55 | 74 | .lport_set_port_id = fnic_set_port_id, |
5df6d737 AJ |
75 | .fcp_abort_io = fnic_empty_scsi_cleanup, |
76 | .fcp_cleanup = fnic_empty_scsi_cleanup, | |
77 | .exch_mgr_reset = fnic_exch_mgr_reset | |
78 | }; | |
79 | ||
80 | static int fnic_slave_alloc(struct scsi_device *sdev) | |
81 | { | |
82 | struct fc_rport *rport = starget_to_rport(scsi_target(sdev)); | |
5df6d737 AJ |
83 | |
84 | sdev->tagged_supported = 1; | |
85 | ||
86 | if (!rport || fc_remote_port_chkready(rport)) | |
87 | return -ENXIO; | |
88 | ||
89 | scsi_activate_tcq(sdev, FNIC_DFLT_QUEUE_DEPTH); | |
5df6d737 AJ |
90 | return 0; |
91 | } | |
92 | ||
93 | static struct scsi_host_template fnic_host_template = { | |
94 | .module = THIS_MODULE, | |
95 | .name = DRV_NAME, | |
96 | .queuecommand = fnic_queuecommand, | |
97 | .eh_abort_handler = fnic_abort_cmd, | |
98 | .eh_device_reset_handler = fnic_device_reset, | |
99 | .eh_host_reset_handler = fnic_host_reset, | |
100 | .slave_alloc = fnic_slave_alloc, | |
101 | .change_queue_depth = fc_change_queue_depth, | |
102 | .change_queue_type = fc_change_queue_type, | |
103 | .this_id = -1, | |
104 | .cmd_per_lun = 3, | |
105 | .can_queue = FNIC_MAX_IO_REQ, | |
106 | .use_clustering = ENABLE_CLUSTERING, | |
107 | .sg_tablesize = FNIC_MAX_SG_DESC_CNT, | |
108 | .max_sectors = 0xffff, | |
109 | .shost_attrs = fnic_attrs, | |
110 | }; | |
111 | ||
8196a934 | 112 | static void |
48586820 | 113 | fnic_set_rport_dev_loss_tmo(struct fc_rport *rport, u32 timeout) |
8196a934 | 114 | { |
48586820 MC |
115 | if (timeout) |
116 | rport->dev_loss_tmo = timeout; | |
117 | else | |
118 | rport->dev_loss_tmo = 1; | |
8196a934 MC |
119 | } |
120 | ||
5df6d737 AJ |
121 | static void fnic_get_host_speed(struct Scsi_Host *shost); |
122 | static struct scsi_transport_template *fnic_fc_transport; | |
123 | static struct fc_host_statistics *fnic_get_stats(struct Scsi_Host *); | |
124 | ||
125 | static struct fc_function_template fnic_fc_functions = { | |
126 | ||
127 | .show_host_node_name = 1, | |
128 | .show_host_port_name = 1, | |
129 | .show_host_supported_classes = 1, | |
130 | .show_host_supported_fc4s = 1, | |
131 | .show_host_active_fc4s = 1, | |
132 | .show_host_maxframe_size = 1, | |
133 | .show_host_port_id = 1, | |
134 | .show_host_supported_speeds = 1, | |
135 | .get_host_speed = fnic_get_host_speed, | |
136 | .show_host_speed = 1, | |
137 | .show_host_port_type = 1, | |
138 | .get_host_port_state = fc_get_host_port_state, | |
139 | .show_host_port_state = 1, | |
140 | .show_host_symbolic_name = 1, | |
141 | .show_rport_maxframe_size = 1, | |
142 | .show_rport_supported_classes = 1, | |
143 | .show_host_fabric_name = 1, | |
144 | .show_starget_node_name = 1, | |
145 | .show_starget_port_name = 1, | |
146 | .show_starget_port_id = 1, | |
147 | .show_rport_dev_loss_tmo = 1, | |
48586820 | 148 | .set_rport_dev_loss_tmo = fnic_set_rport_dev_loss_tmo, |
5df6d737 AJ |
149 | .issue_fc_host_lip = fnic_reset, |
150 | .get_fc_host_stats = fnic_get_stats, | |
151 | .dd_fcrport_size = sizeof(struct fc_rport_libfc_priv), | |
152 | .terminate_rport_io = fnic_terminate_rport_io, | |
76d8737c | 153 | .bsg_request = fc_lport_bsg_request, |
5df6d737 AJ |
154 | }; |
155 | ||
156 | static void fnic_get_host_speed(struct Scsi_Host *shost) | |
157 | { | |
158 | struct fc_lport *lp = shost_priv(shost); | |
159 | struct fnic *fnic = lport_priv(lp); | |
160 | u32 port_speed = vnic_dev_port_speed(fnic->vdev); | |
161 | ||
162 | /* Add in other values as they get defined in fw */ | |
163 | switch (port_speed) { | |
164 | case 10000: | |
165 | fc_host_speed(shost) = FC_PORTSPEED_10GBIT; | |
166 | break; | |
167 | default: | |
168 | fc_host_speed(shost) = FC_PORTSPEED_10GBIT; | |
169 | break; | |
170 | } | |
171 | } | |
172 | ||
173 | static struct fc_host_statistics *fnic_get_stats(struct Scsi_Host *host) | |
174 | { | |
175 | int ret; | |
176 | struct fc_lport *lp = shost_priv(host); | |
177 | struct fnic *fnic = lport_priv(lp); | |
178 | struct fc_host_statistics *stats = &lp->host_stats; | |
179 | struct vnic_stats *vs; | |
180 | unsigned long flags; | |
181 | ||
182 | if (time_before(jiffies, fnic->stats_time + HZ / FNIC_STATS_RATE_LIMIT)) | |
183 | return stats; | |
184 | fnic->stats_time = jiffies; | |
185 | ||
186 | spin_lock_irqsave(&fnic->fnic_lock, flags); | |
187 | ret = vnic_dev_stats_dump(fnic->vdev, &fnic->stats); | |
188 | spin_unlock_irqrestore(&fnic->fnic_lock, flags); | |
189 | ||
190 | if (ret) { | |
191 | FNIC_MAIN_DBG(KERN_DEBUG, fnic->lport->host, | |
192 | "fnic: Get vnic stats failed" | |
193 | " 0x%x", ret); | |
194 | return stats; | |
195 | } | |
196 | vs = fnic->stats; | |
197 | stats->tx_frames = vs->tx.tx_unicast_frames_ok; | |
198 | stats->tx_words = vs->tx.tx_unicast_bytes_ok / 4; | |
199 | stats->rx_frames = vs->rx.rx_unicast_frames_ok; | |
200 | stats->rx_words = vs->rx.rx_unicast_bytes_ok / 4; | |
201 | stats->error_frames = vs->tx.tx_errors + vs->rx.rx_errors; | |
202 | stats->dumped_frames = vs->tx.tx_drops + vs->rx.rx_drop; | |
203 | stats->invalid_crc_count = vs->rx.rx_crc_errors; | |
204 | stats->seconds_since_last_reset = (jiffies - lp->boot_time) / HZ; | |
205 | stats->fcp_input_megabytes = div_u64(fnic->fcp_input_bytes, 1000000); | |
206 | stats->fcp_output_megabytes = div_u64(fnic->fcp_output_bytes, 1000000); | |
207 | ||
208 | return stats; | |
209 | } | |
210 | ||
211 | void fnic_log_q_error(struct fnic *fnic) | |
212 | { | |
213 | unsigned int i; | |
214 | u32 error_status; | |
215 | ||
216 | for (i = 0; i < fnic->raw_wq_count; i++) { | |
217 | error_status = ioread32(&fnic->wq[i].ctrl->error_status); | |
218 | if (error_status) | |
219 | shost_printk(KERN_ERR, fnic->lport->host, | |
220 | "WQ[%d] error_status" | |
221 | " %d\n", i, error_status); | |
222 | } | |
223 | ||
224 | for (i = 0; i < fnic->rq_count; i++) { | |
225 | error_status = ioread32(&fnic->rq[i].ctrl->error_status); | |
226 | if (error_status) | |
227 | shost_printk(KERN_ERR, fnic->lport->host, | |
228 | "RQ[%d] error_status" | |
229 | " %d\n", i, error_status); | |
230 | } | |
231 | ||
232 | for (i = 0; i < fnic->wq_copy_count; i++) { | |
233 | error_status = ioread32(&fnic->wq_copy[i].ctrl->error_status); | |
234 | if (error_status) | |
235 | shost_printk(KERN_ERR, fnic->lport->host, | |
236 | "CWQ[%d] error_status" | |
237 | " %d\n", i, error_status); | |
238 | } | |
239 | } | |
240 | ||
241 | void fnic_handle_link_event(struct fnic *fnic) | |
242 | { | |
243 | unsigned long flags; | |
244 | ||
245 | spin_lock_irqsave(&fnic->fnic_lock, flags); | |
246 | if (fnic->stop_rx_link_events) { | |
247 | spin_unlock_irqrestore(&fnic->fnic_lock, flags); | |
248 | return; | |
249 | } | |
250 | spin_unlock_irqrestore(&fnic->fnic_lock, flags); | |
251 | ||
252 | queue_work(fnic_event_queue, &fnic->link_work); | |
253 | ||
254 | } | |
255 | ||
256 | static int fnic_notify_set(struct fnic *fnic) | |
257 | { | |
258 | int err; | |
259 | ||
260 | switch (vnic_dev_get_intr_mode(fnic->vdev)) { | |
261 | case VNIC_DEV_INTR_MODE_INTX: | |
262 | err = vnic_dev_notify_set(fnic->vdev, FNIC_INTX_NOTIFY); | |
263 | break; | |
264 | case VNIC_DEV_INTR_MODE_MSI: | |
265 | err = vnic_dev_notify_set(fnic->vdev, -1); | |
266 | break; | |
267 | case VNIC_DEV_INTR_MODE_MSIX: | |
268 | err = vnic_dev_notify_set(fnic->vdev, FNIC_MSIX_ERR_NOTIFY); | |
269 | break; | |
270 | default: | |
271 | shost_printk(KERN_ERR, fnic->lport->host, | |
272 | "Interrupt mode should be set up" | |
273 | " before devcmd notify set %d\n", | |
274 | vnic_dev_get_intr_mode(fnic->vdev)); | |
275 | err = -1; | |
276 | break; | |
277 | } | |
278 | ||
279 | return err; | |
280 | } | |
281 | ||
282 | static void fnic_notify_timer(unsigned long data) | |
283 | { | |
284 | struct fnic *fnic = (struct fnic *)data; | |
285 | ||
286 | fnic_handle_link_event(fnic); | |
287 | mod_timer(&fnic->notify_timer, | |
288 | round_jiffies(jiffies + FNIC_NOTIFY_TIMER_PERIOD)); | |
289 | } | |
290 | ||
291 | static void fnic_notify_timer_start(struct fnic *fnic) | |
292 | { | |
293 | switch (vnic_dev_get_intr_mode(fnic->vdev)) { | |
294 | case VNIC_DEV_INTR_MODE_MSI: | |
295 | /* | |
296 | * Schedule first timeout immediately. The driver is | |
297 | * initiatialized and ready to look for link up notification | |
298 | */ | |
299 | mod_timer(&fnic->notify_timer, jiffies); | |
300 | break; | |
301 | default: | |
302 | /* Using intr for notification for INTx/MSI-X */ | |
303 | break; | |
304 | }; | |
305 | } | |
306 | ||
307 | static int fnic_dev_wait(struct vnic_dev *vdev, | |
308 | int (*start)(struct vnic_dev *, int), | |
309 | int (*finished)(struct vnic_dev *, int *), | |
310 | int arg) | |
311 | { | |
312 | unsigned long time; | |
313 | int done; | |
314 | int err; | |
315 | ||
316 | err = start(vdev, arg); | |
317 | if (err) | |
318 | return err; | |
319 | ||
320 | /* Wait for func to complete...2 seconds max */ | |
321 | time = jiffies + (HZ * 2); | |
322 | do { | |
323 | err = finished(vdev, &done); | |
324 | if (err) | |
325 | return err; | |
326 | if (done) | |
327 | return 0; | |
328 | schedule_timeout_uninterruptible(HZ / 10); | |
329 | } while (time_after(time, jiffies)); | |
330 | ||
331 | return -ETIMEDOUT; | |
332 | } | |
333 | ||
334 | static int fnic_cleanup(struct fnic *fnic) | |
335 | { | |
336 | unsigned int i; | |
337 | int err; | |
5df6d737 AJ |
338 | |
339 | vnic_dev_disable(fnic->vdev); | |
340 | for (i = 0; i < fnic->intr_count; i++) | |
341 | vnic_intr_mask(&fnic->intr[i]); | |
342 | ||
343 | for (i = 0; i < fnic->rq_count; i++) { | |
344 | err = vnic_rq_disable(&fnic->rq[i]); | |
345 | if (err) | |
346 | return err; | |
347 | } | |
348 | for (i = 0; i < fnic->raw_wq_count; i++) { | |
349 | err = vnic_wq_disable(&fnic->wq[i]); | |
350 | if (err) | |
351 | return err; | |
352 | } | |
353 | for (i = 0; i < fnic->wq_copy_count; i++) { | |
354 | err = vnic_wq_copy_disable(&fnic->wq_copy[i]); | |
355 | if (err) | |
356 | return err; | |
357 | } | |
358 | ||
359 | /* Clean up completed IOs and FCS frames */ | |
360 | fnic_wq_copy_cmpl_handler(fnic, -1); | |
361 | fnic_wq_cmpl_handler(fnic, -1); | |
362 | fnic_rq_cmpl_handler(fnic, -1); | |
363 | ||
364 | /* Clean up the IOs and FCS frames that have not completed */ | |
365 | for (i = 0; i < fnic->raw_wq_count; i++) | |
366 | vnic_wq_clean(&fnic->wq[i], fnic_free_wq_buf); | |
367 | for (i = 0; i < fnic->rq_count; i++) | |
368 | vnic_rq_clean(&fnic->rq[i], fnic_free_rq_buf); | |
369 | for (i = 0; i < fnic->wq_copy_count; i++) | |
370 | vnic_wq_copy_clean(&fnic->wq_copy[i], | |
371 | fnic_wq_copy_cleanup_handler); | |
372 | ||
373 | for (i = 0; i < fnic->cq_count; i++) | |
374 | vnic_cq_clean(&fnic->cq[i]); | |
375 | for (i = 0; i < fnic->intr_count; i++) | |
376 | vnic_intr_clean(&fnic->intr[i]); | |
377 | ||
5df6d737 AJ |
378 | mempool_destroy(fnic->io_req_pool); |
379 | for (i = 0; i < FNIC_SGL_NUM_CACHES; i++) | |
380 | mempool_destroy(fnic->io_sgl_pool[i]); | |
381 | ||
382 | return 0; | |
383 | } | |
384 | ||
385 | static void fnic_iounmap(struct fnic *fnic) | |
386 | { | |
387 | if (fnic->bar0.vaddr) | |
388 | iounmap(fnic->bar0.vaddr); | |
389 | } | |
390 | ||
78112e55 JE |
391 | /** |
392 | * fnic_get_mac() - get assigned data MAC address for FIP code. | |
393 | * @lport: local port. | |
394 | */ | |
395 | static u8 *fnic_get_mac(struct fc_lport *lport) | |
396 | { | |
397 | struct fnic *fnic = lport_priv(lport); | |
398 | ||
399 | return fnic->data_src_addr; | |
400 | } | |
401 | ||
5df6d737 AJ |
402 | static int __devinit fnic_probe(struct pci_dev *pdev, |
403 | const struct pci_device_id *ent) | |
404 | { | |
405 | struct Scsi_Host *host; | |
406 | struct fc_lport *lp; | |
407 | struct fnic *fnic; | |
408 | mempool_t *pool; | |
409 | int err; | |
410 | int i; | |
411 | unsigned long flags; | |
412 | ||
413 | /* | |
414 | * Allocate SCSI Host and set up association between host, | |
415 | * local port, and fnic | |
416 | */ | |
86221969 CL |
417 | lp = libfc_host_alloc(&fnic_host_template, sizeof(struct fnic)); |
418 | if (!lp) { | |
419 | printk(KERN_ERR PFX "Unable to alloc libfc local port\n"); | |
5df6d737 AJ |
420 | err = -ENOMEM; |
421 | goto err_out; | |
422 | } | |
86221969 | 423 | host = lp->host; |
5df6d737 AJ |
424 | fnic = lport_priv(lp); |
425 | fnic->lport = lp; | |
78112e55 | 426 | fnic->ctlr.lp = lp; |
5df6d737 AJ |
427 | |
428 | snprintf(fnic->name, sizeof(fnic->name) - 1, "%s%d", DRV_NAME, | |
429 | host->host_no); | |
430 | ||
431 | host->transportt = fnic_fc_transport; | |
432 | ||
433 | err = scsi_init_shared_tag_map(host, FNIC_MAX_IO_REQ); | |
434 | if (err) { | |
435 | shost_printk(KERN_ERR, fnic->lport->host, | |
436 | "Unable to alloc shared tag map\n"); | |
437 | goto err_out_free_hba; | |
438 | } | |
439 | ||
440 | /* Setup PCI resources */ | |
441 | pci_set_drvdata(pdev, fnic); | |
442 | ||
443 | fnic->pdev = pdev; | |
444 | ||
445 | err = pci_enable_device(pdev); | |
446 | if (err) { | |
447 | shost_printk(KERN_ERR, fnic->lport->host, | |
448 | "Cannot enable PCI device, aborting.\n"); | |
449 | goto err_out_free_hba; | |
450 | } | |
451 | ||
452 | err = pci_request_regions(pdev, DRV_NAME); | |
453 | if (err) { | |
454 | shost_printk(KERN_ERR, fnic->lport->host, | |
455 | "Cannot enable PCI resources, aborting\n"); | |
456 | goto err_out_disable_device; | |
457 | } | |
458 | ||
459 | pci_set_master(pdev); | |
460 | ||
461 | /* Query PCI controller on system for DMA addressing | |
462 | * limitation for the device. Try 40-bit first, and | |
463 | * fail to 32-bit. | |
464 | */ | |
e3f47cc7 | 465 | err = pci_set_dma_mask(pdev, DMA_BIT_MASK(40)); |
5df6d737 | 466 | if (err) { |
e3f47cc7 | 467 | err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); |
5df6d737 AJ |
468 | if (err) { |
469 | shost_printk(KERN_ERR, fnic->lport->host, | |
470 | "No usable DMA configuration " | |
471 | "aborting\n"); | |
472 | goto err_out_release_regions; | |
473 | } | |
e3f47cc7 | 474 | err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); |
5df6d737 AJ |
475 | if (err) { |
476 | shost_printk(KERN_ERR, fnic->lport->host, | |
477 | "Unable to obtain 32-bit DMA " | |
478 | "for consistent allocations, aborting.\n"); | |
479 | goto err_out_release_regions; | |
480 | } | |
481 | } else { | |
e3f47cc7 | 482 | err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(40)); |
5df6d737 AJ |
483 | if (err) { |
484 | shost_printk(KERN_ERR, fnic->lport->host, | |
485 | "Unable to obtain 40-bit DMA " | |
486 | "for consistent allocations, aborting.\n"); | |
487 | goto err_out_release_regions; | |
488 | } | |
489 | } | |
490 | ||
491 | /* Map vNIC resources from BAR0 */ | |
492 | if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) { | |
493 | shost_printk(KERN_ERR, fnic->lport->host, | |
494 | "BAR0 not memory-map'able, aborting.\n"); | |
495 | err = -ENODEV; | |
496 | goto err_out_release_regions; | |
497 | } | |
498 | ||
499 | fnic->bar0.vaddr = pci_iomap(pdev, 0, 0); | |
500 | fnic->bar0.bus_addr = pci_resource_start(pdev, 0); | |
501 | fnic->bar0.len = pci_resource_len(pdev, 0); | |
502 | ||
503 | if (!fnic->bar0.vaddr) { | |
504 | shost_printk(KERN_ERR, fnic->lport->host, | |
505 | "Cannot memory-map BAR0 res hdr, " | |
506 | "aborting.\n"); | |
507 | err = -ENODEV; | |
508 | goto err_out_release_regions; | |
509 | } | |
510 | ||
511 | fnic->vdev = vnic_dev_register(NULL, fnic, pdev, &fnic->bar0); | |
512 | if (!fnic->vdev) { | |
513 | shost_printk(KERN_ERR, fnic->lport->host, | |
514 | "vNIC registration failed, " | |
515 | "aborting.\n"); | |
516 | err = -ENODEV; | |
517 | goto err_out_iounmap; | |
518 | } | |
519 | ||
520 | err = fnic_dev_wait(fnic->vdev, vnic_dev_open, | |
521 | vnic_dev_open_done, 0); | |
522 | if (err) { | |
523 | shost_printk(KERN_ERR, fnic->lport->host, | |
524 | "vNIC dev open failed, aborting.\n"); | |
525 | goto err_out_vnic_unregister; | |
526 | } | |
527 | ||
528 | err = vnic_dev_init(fnic->vdev, 0); | |
529 | if (err) { | |
530 | shost_printk(KERN_ERR, fnic->lport->host, | |
531 | "vNIC dev init failed, aborting.\n"); | |
532 | goto err_out_dev_close; | |
533 | } | |
534 | ||
78112e55 | 535 | err = vnic_dev_mac_addr(fnic->vdev, fnic->ctlr.ctl_src_addr); |
5df6d737 AJ |
536 | if (err) { |
537 | shost_printk(KERN_ERR, fnic->lport->host, | |
538 | "vNIC get MAC addr failed \n"); | |
539 | goto err_out_dev_close; | |
540 | } | |
78112e55 JE |
541 | /* set data_src for point-to-point mode and to keep it non-zero */ |
542 | memcpy(fnic->data_src_addr, fnic->ctlr.ctl_src_addr, ETH_ALEN); | |
5df6d737 AJ |
543 | |
544 | /* Get vNIC configuration */ | |
545 | err = fnic_get_vnic_config(fnic); | |
546 | if (err) { | |
547 | shost_printk(KERN_ERR, fnic->lport->host, | |
548 | "Get vNIC configuration failed, " | |
549 | "aborting.\n"); | |
550 | goto err_out_dev_close; | |
551 | } | |
552 | host->max_lun = fnic->config.luns_per_tgt; | |
553 | host->max_id = FNIC_MAX_FCP_TARGET; | |
da87bfab | 554 | host->max_cmd_len = FCOE_MAX_CMD_LEN; |
5df6d737 AJ |
555 | |
556 | fnic_get_res_counts(fnic); | |
557 | ||
558 | err = fnic_set_intr_mode(fnic); | |
559 | if (err) { | |
560 | shost_printk(KERN_ERR, fnic->lport->host, | |
561 | "Failed to set intr mode, " | |
562 | "aborting.\n"); | |
563 | goto err_out_dev_close; | |
564 | } | |
565 | ||
5df6d737 AJ |
566 | err = fnic_alloc_vnic_resources(fnic); |
567 | if (err) { | |
568 | shost_printk(KERN_ERR, fnic->lport->host, | |
569 | "Failed to alloc vNIC resources, " | |
570 | "aborting.\n"); | |
2e76f767 | 571 | goto err_out_clear_intr; |
5df6d737 AJ |
572 | } |
573 | ||
574 | ||
575 | /* initialize all fnic locks */ | |
576 | spin_lock_init(&fnic->fnic_lock); | |
577 | ||
578 | for (i = 0; i < FNIC_WQ_MAX; i++) | |
579 | spin_lock_init(&fnic->wq_lock[i]); | |
580 | ||
581 | for (i = 0; i < FNIC_WQ_COPY_MAX; i++) { | |
582 | spin_lock_init(&fnic->wq_copy_lock[i]); | |
583 | fnic->wq_copy_desc_low[i] = DESC_CLEAN_LOW_WATERMARK; | |
584 | fnic->fw_ack_recd[i] = 0; | |
585 | fnic->fw_ack_index[i] = -1; | |
586 | } | |
587 | ||
588 | for (i = 0; i < FNIC_IO_LOCKS; i++) | |
589 | spin_lock_init(&fnic->io_req_lock[i]); | |
590 | ||
591 | fnic->io_req_pool = mempool_create_slab_pool(2, fnic_io_req_cache); | |
592 | if (!fnic->io_req_pool) | |
593 | goto err_out_free_resources; | |
594 | ||
0c79c742 | 595 | pool = mempool_create_slab_pool(2, fnic_sgl_cache[FNIC_SGL_CACHE_DFLT]); |
5df6d737 AJ |
596 | if (!pool) |
597 | goto err_out_free_ioreq_pool; | |
598 | fnic->io_sgl_pool[FNIC_SGL_CACHE_DFLT] = pool; | |
599 | ||
0c79c742 | 600 | pool = mempool_create_slab_pool(2, fnic_sgl_cache[FNIC_SGL_CACHE_MAX]); |
5df6d737 AJ |
601 | if (!pool) |
602 | goto err_out_free_dflt_pool; | |
603 | fnic->io_sgl_pool[FNIC_SGL_CACHE_MAX] = pool; | |
604 | ||
605 | /* setup vlan config, hw inserts vlan header */ | |
606 | fnic->vlan_hw_insert = 1; | |
607 | fnic->vlan_id = 0; | |
608 | ||
78112e55 JE |
609 | /* Initialize the FIP fcoe_ctrl struct */ |
610 | fnic->ctlr.send = fnic_eth_send; | |
611 | fnic->ctlr.update_mac = fnic_update_mac; | |
612 | fnic->ctlr.get_src_addr = fnic_get_mac; | |
78112e55 JE |
613 | if (fnic->config.flags & VFCF_FIP_CAPABLE) { |
614 | shost_printk(KERN_INFO, fnic->lport->host, | |
615 | "firmware supports FIP\n"); | |
aaa5e569 VSVB |
616 | /* enable directed and multicast */ |
617 | vnic_dev_packet_filter(fnic->vdev, 1, 1, 0, 0, 0); | |
78112e55 JE |
618 | vnic_dev_add_addr(fnic->vdev, FIP_ALL_ENODE_MACS); |
619 | vnic_dev_add_addr(fnic->vdev, fnic->ctlr.ctl_src_addr); | |
3d902ac0 | 620 | fcoe_ctlr_init(&fnic->ctlr, FIP_MODE_AUTO); |
78112e55 JE |
621 | } else { |
622 | shost_printk(KERN_INFO, fnic->lport->host, | |
623 | "firmware uses non-FIP mode\n"); | |
3d902ac0 | 624 | fcoe_ctlr_init(&fnic->ctlr, FIP_MODE_NON_FIP); |
78112e55 | 625 | } |
5df6d737 AJ |
626 | fnic->state = FNIC_IN_FC_MODE; |
627 | ||
628 | /* Enable hardware stripping of vlan header on ingress */ | |
629 | fnic_set_nic_config(fnic, 0, 0, 0, 0, 0, 0, 1); | |
630 | ||
631 | /* Setup notification buffer area */ | |
632 | err = fnic_notify_set(fnic); | |
633 | if (err) { | |
634 | shost_printk(KERN_ERR, fnic->lport->host, | |
635 | "Failed to alloc notify buffer, aborting.\n"); | |
636 | goto err_out_free_max_pool; | |
637 | } | |
638 | ||
639 | /* Setup notify timer when using MSI interrupts */ | |
640 | if (vnic_dev_get_intr_mode(fnic->vdev) == VNIC_DEV_INTR_MODE_MSI) | |
641 | setup_timer(&fnic->notify_timer, | |
642 | fnic_notify_timer, (unsigned long)fnic); | |
643 | ||
644 | /* allocate RQ buffers and post them to RQ*/ | |
645 | for (i = 0; i < fnic->rq_count; i++) { | |
646 | err = vnic_rq_fill(&fnic->rq[i], fnic_alloc_rq_frame); | |
647 | if (err) { | |
648 | shost_printk(KERN_ERR, fnic->lport->host, | |
649 | "fnic_alloc_rq_frame can't alloc " | |
650 | "frame\n"); | |
651 | goto err_out_free_rq_buf; | |
652 | } | |
653 | } | |
654 | ||
655 | /* | |
656 | * Initialization done with PCI system, hardware, firmware. | |
657 | * Add host to SCSI | |
658 | */ | |
659 | err = scsi_add_host(lp->host, &pdev->dev); | |
660 | if (err) { | |
661 | shost_printk(KERN_ERR, fnic->lport->host, | |
662 | "fnic: scsi_add_host failed...exiting\n"); | |
663 | goto err_out_free_rq_buf; | |
664 | } | |
665 | ||
666 | /* Start local port initiatialization */ | |
667 | ||
668 | lp->link_up = 0; | |
5df6d737 | 669 | |
5df6d737 | 670 | lp->max_retry_count = fnic->config.flogi_retries; |
a3666955 | 671 | lp->max_rport_retry_count = fnic->config.plogi_retries; |
5df6d737 AJ |
672 | lp->service_params = (FCP_SPPF_INIT_FCN | FCP_SPPF_RD_XRDY_DIS | |
673 | FCP_SPPF_CONF_COMPL); | |
674 | if (fnic->config.flags & VFCF_FCP_SEQ_LVL_ERR) | |
675 | lp->service_params |= FCP_SPPF_RETRY; | |
676 | ||
677 | lp->boot_time = jiffies; | |
678 | lp->e_d_tov = fnic->config.ed_tov; | |
679 | lp->r_a_tov = fnic->config.ra_tov; | |
680 | lp->link_supported_speeds = FC_PORTSPEED_10GBIT; | |
681 | fc_set_wwnn(lp, fnic->config.node_wwn); | |
682 | fc_set_wwpn(lp, fnic->config.port_wwn); | |
683 | ||
e10f8c66 | 684 | fcoe_libfc_config(lp, &fnic->ctlr, &fnic_transport_template, 0); |
5df6d737 | 685 | |
52ff878c VD |
686 | if (!fc_exch_mgr_alloc(lp, FC_CLASS_3, FCPIO_HOST_EXCH_RANGE_START, |
687 | FCPIO_HOST_EXCH_RANGE_END, NULL)) { | |
688 | err = -ENOMEM; | |
689 | goto err_out_remove_scsi_host; | |
690 | } | |
691 | ||
c693a71d VSVB |
692 | fc_lport_init_stats(lp); |
693 | ||
5df6d737 AJ |
694 | fc_lport_config(lp); |
695 | ||
696 | if (fc_set_mfs(lp, fnic->config.maxdatafieldsize + | |
697 | sizeof(struct fc_frame_header))) { | |
698 | err = -EINVAL; | |
699 | goto err_out_free_exch_mgr; | |
700 | } | |
701 | fc_host_maxframe_size(lp->host) = lp->mfs; | |
48586820 | 702 | fc_host_dev_loss_tmo(lp->host) = fnic->config.port_down_timeout / 1000; |
5df6d737 AJ |
703 | |
704 | sprintf(fc_host_symbolic_name(lp->host), | |
705 | DRV_NAME " v" DRV_VERSION " over %s", fnic->name); | |
706 | ||
707 | spin_lock_irqsave(&fnic_list_lock, flags); | |
708 | list_add_tail(&fnic->list, &fnic_list); | |
709 | spin_unlock_irqrestore(&fnic_list_lock, flags); | |
710 | ||
711 | INIT_WORK(&fnic->link_work, fnic_handle_link); | |
712 | INIT_WORK(&fnic->frame_work, fnic_handle_frame); | |
713 | skb_queue_head_init(&fnic->frame_queue); | |
78112e55 | 714 | skb_queue_head_init(&fnic->tx_queue); |
5df6d737 AJ |
715 | |
716 | /* Enable all queues */ | |
717 | for (i = 0; i < fnic->raw_wq_count; i++) | |
718 | vnic_wq_enable(&fnic->wq[i]); | |
719 | for (i = 0; i < fnic->rq_count; i++) | |
720 | vnic_rq_enable(&fnic->rq[i]); | |
721 | for (i = 0; i < fnic->wq_copy_count; i++) | |
722 | vnic_wq_copy_enable(&fnic->wq_copy[i]); | |
723 | ||
724 | fc_fabric_login(lp); | |
725 | ||
726 | vnic_dev_enable(fnic->vdev); | |
2e76f767 AJ |
727 | |
728 | err = fnic_request_intr(fnic); | |
729 | if (err) { | |
730 | shost_printk(KERN_ERR, fnic->lport->host, | |
731 | "Unable to request irq.\n"); | |
732 | goto err_out_free_exch_mgr; | |
733 | } | |
734 | ||
5df6d737 AJ |
735 | for (i = 0; i < fnic->intr_count; i++) |
736 | vnic_intr_unmask(&fnic->intr[i]); | |
737 | ||
738 | fnic_notify_timer_start(fnic); | |
739 | ||
740 | return 0; | |
741 | ||
742 | err_out_free_exch_mgr: | |
52ff878c | 743 | fc_exch_mgr_free(lp); |
5df6d737 | 744 | err_out_remove_scsi_host: |
78112e55 JE |
745 | fc_remove_host(lp->host); |
746 | scsi_remove_host(lp->host); | |
5df6d737 AJ |
747 | err_out_free_rq_buf: |
748 | for (i = 0; i < fnic->rq_count; i++) | |
749 | vnic_rq_clean(&fnic->rq[i], fnic_free_rq_buf); | |
750 | vnic_dev_notify_unset(fnic->vdev); | |
751 | err_out_free_max_pool: | |
752 | mempool_destroy(fnic->io_sgl_pool[FNIC_SGL_CACHE_MAX]); | |
753 | err_out_free_dflt_pool: | |
754 | mempool_destroy(fnic->io_sgl_pool[FNIC_SGL_CACHE_DFLT]); | |
755 | err_out_free_ioreq_pool: | |
756 | mempool_destroy(fnic->io_req_pool); | |
757 | err_out_free_resources: | |
758 | fnic_free_vnic_resources(fnic); | |
5df6d737 AJ |
759 | err_out_clear_intr: |
760 | fnic_clear_intr_mode(fnic); | |
761 | err_out_dev_close: | |
762 | vnic_dev_close(fnic->vdev); | |
763 | err_out_vnic_unregister: | |
764 | vnic_dev_unregister(fnic->vdev); | |
765 | err_out_iounmap: | |
766 | fnic_iounmap(fnic); | |
767 | err_out_release_regions: | |
768 | pci_release_regions(pdev); | |
769 | err_out_disable_device: | |
770 | pci_disable_device(pdev); | |
771 | err_out_free_hba: | |
772 | scsi_host_put(lp->host); | |
773 | err_out: | |
774 | return err; | |
775 | } | |
776 | ||
777 | static void __devexit fnic_remove(struct pci_dev *pdev) | |
778 | { | |
779 | struct fnic *fnic = pci_get_drvdata(pdev); | |
78112e55 | 780 | struct fc_lport *lp = fnic->lport; |
5df6d737 AJ |
781 | unsigned long flags; |
782 | ||
783 | /* | |
784 | * Mark state so that the workqueue thread stops forwarding | |
785 | * received frames and link events to the local port. ISR and | |
786 | * other threads that can queue work items will also stop | |
787 | * creating work items on the fnic workqueue | |
788 | */ | |
789 | spin_lock_irqsave(&fnic->fnic_lock, flags); | |
790 | fnic->stop_rx_link_events = 1; | |
791 | spin_unlock_irqrestore(&fnic->fnic_lock, flags); | |
792 | ||
793 | if (vnic_dev_get_intr_mode(fnic->vdev) == VNIC_DEV_INTR_MODE_MSI) | |
794 | del_timer_sync(&fnic->notify_timer); | |
795 | ||
796 | /* | |
797 | * Flush the fnic event queue. After this call, there should | |
798 | * be no event queued for this fnic device in the workqueue | |
799 | */ | |
800 | flush_workqueue(fnic_event_queue); | |
801 | skb_queue_purge(&fnic->frame_queue); | |
78112e55 | 802 | skb_queue_purge(&fnic->tx_queue); |
5df6d737 AJ |
803 | |
804 | /* | |
805 | * Log off the fabric. This stops all remote ports, dns port, | |
806 | * logs off the fabric. This flushes all rport, disc, lport work | |
807 | * before returning | |
808 | */ | |
809 | fc_fabric_logoff(fnic->lport); | |
810 | ||
811 | spin_lock_irqsave(&fnic->fnic_lock, flags); | |
812 | fnic->in_remove = 1; | |
813 | spin_unlock_irqrestore(&fnic->fnic_lock, flags); | |
814 | ||
78112e55 JE |
815 | fcoe_ctlr_destroy(&fnic->ctlr); |
816 | fc_lport_destroy(lp); | |
5df6d737 AJ |
817 | |
818 | /* | |
819 | * This stops the fnic device, masks all interrupts. Completed | |
820 | * CQ entries are drained. Posted WQ/RQ/Copy-WQ entries are | |
821 | * cleaned up | |
822 | */ | |
823 | fnic_cleanup(fnic); | |
824 | ||
825 | BUG_ON(!skb_queue_empty(&fnic->frame_queue)); | |
78112e55 | 826 | BUG_ON(!skb_queue_empty(&fnic->tx_queue)); |
5df6d737 AJ |
827 | |
828 | spin_lock_irqsave(&fnic_list_lock, flags); | |
829 | list_del(&fnic->list); | |
830 | spin_unlock_irqrestore(&fnic_list_lock, flags); | |
831 | ||
832 | fc_remove_host(fnic->lport->host); | |
833 | scsi_remove_host(fnic->lport->host); | |
52ff878c | 834 | fc_exch_mgr_free(fnic->lport); |
5df6d737 | 835 | vnic_dev_notify_unset(fnic->vdev); |
5df6d737 | 836 | fnic_free_intr(fnic); |
2e76f767 | 837 | fnic_free_vnic_resources(fnic); |
5df6d737 AJ |
838 | fnic_clear_intr_mode(fnic); |
839 | vnic_dev_close(fnic->vdev); | |
840 | vnic_dev_unregister(fnic->vdev); | |
841 | fnic_iounmap(fnic); | |
842 | pci_release_regions(pdev); | |
843 | pci_disable_device(pdev); | |
844 | pci_set_drvdata(pdev, NULL); | |
78112e55 | 845 | scsi_host_put(lp->host); |
5df6d737 AJ |
846 | } |
847 | ||
848 | static struct pci_driver fnic_driver = { | |
849 | .name = DRV_NAME, | |
850 | .id_table = fnic_id_table, | |
851 | .probe = fnic_probe, | |
852 | .remove = __devexit_p(fnic_remove), | |
853 | }; | |
854 | ||
855 | static int __init fnic_init_module(void) | |
856 | { | |
857 | size_t len; | |
858 | int err = 0; | |
859 | ||
860 | printk(KERN_INFO PFX "%s, ver %s\n", DRV_DESCRIPTION, DRV_VERSION); | |
861 | ||
862 | /* Create a cache for allocation of default size sgls */ | |
863 | len = sizeof(struct fnic_dflt_sgl_list); | |
864 | fnic_sgl_cache[FNIC_SGL_CACHE_DFLT] = kmem_cache_create | |
865 | ("fnic_sgl_dflt", len + FNIC_SG_DESC_ALIGN, FNIC_SG_DESC_ALIGN, | |
0c79c742 | 866 | SLAB_HWCACHE_ALIGN, |
5df6d737 AJ |
867 | NULL); |
868 | if (!fnic_sgl_cache[FNIC_SGL_CACHE_DFLT]) { | |
869 | printk(KERN_ERR PFX "failed to create fnic dflt sgl slab\n"); | |
870 | err = -ENOMEM; | |
871 | goto err_create_fnic_sgl_slab_dflt; | |
872 | } | |
873 | ||
874 | /* Create a cache for allocation of max size sgls*/ | |
875 | len = sizeof(struct fnic_sgl_list); | |
876 | fnic_sgl_cache[FNIC_SGL_CACHE_MAX] = kmem_cache_create | |
877 | ("fnic_sgl_max", len + FNIC_SG_DESC_ALIGN, FNIC_SG_DESC_ALIGN, | |
0c79c742 | 878 | SLAB_HWCACHE_ALIGN, |
5df6d737 AJ |
879 | NULL); |
880 | if (!fnic_sgl_cache[FNIC_SGL_CACHE_MAX]) { | |
881 | printk(KERN_ERR PFX "failed to create fnic max sgl slab\n"); | |
882 | err = -ENOMEM; | |
883 | goto err_create_fnic_sgl_slab_max; | |
884 | } | |
885 | ||
886 | /* Create a cache of io_req structs for use via mempool */ | |
887 | fnic_io_req_cache = kmem_cache_create("fnic_io_req", | |
888 | sizeof(struct fnic_io_req), | |
889 | 0, SLAB_HWCACHE_ALIGN, NULL); | |
890 | if (!fnic_io_req_cache) { | |
891 | printk(KERN_ERR PFX "failed to create fnic io_req slab\n"); | |
892 | err = -ENOMEM; | |
893 | goto err_create_fnic_ioreq_slab; | |
894 | } | |
895 | ||
896 | fnic_event_queue = create_singlethread_workqueue("fnic_event_wq"); | |
897 | if (!fnic_event_queue) { | |
898 | printk(KERN_ERR PFX "fnic work queue create failed\n"); | |
899 | err = -ENOMEM; | |
900 | goto err_create_fnic_workq; | |
901 | } | |
902 | ||
903 | spin_lock_init(&fnic_list_lock); | |
904 | INIT_LIST_HEAD(&fnic_list); | |
905 | ||
906 | fnic_fc_transport = fc_attach_transport(&fnic_fc_functions); | |
907 | if (!fnic_fc_transport) { | |
908 | printk(KERN_ERR PFX "fc_attach_transport error\n"); | |
909 | err = -ENOMEM; | |
910 | goto err_fc_transport; | |
911 | } | |
912 | ||
913 | /* register the driver with PCI system */ | |
914 | err = pci_register_driver(&fnic_driver); | |
915 | if (err < 0) { | |
916 | printk(KERN_ERR PFX "pci register error\n"); | |
917 | goto err_pci_register; | |
918 | } | |
919 | return err; | |
920 | ||
921 | err_pci_register: | |
922 | fc_release_transport(fnic_fc_transport); | |
923 | err_fc_transport: | |
924 | destroy_workqueue(fnic_event_queue); | |
925 | err_create_fnic_workq: | |
926 | kmem_cache_destroy(fnic_io_req_cache); | |
927 | err_create_fnic_ioreq_slab: | |
928 | kmem_cache_destroy(fnic_sgl_cache[FNIC_SGL_CACHE_MAX]); | |
929 | err_create_fnic_sgl_slab_max: | |
930 | kmem_cache_destroy(fnic_sgl_cache[FNIC_SGL_CACHE_DFLT]); | |
931 | err_create_fnic_sgl_slab_dflt: | |
932 | return err; | |
933 | } | |
934 | ||
935 | static void __exit fnic_cleanup_module(void) | |
936 | { | |
937 | pci_unregister_driver(&fnic_driver); | |
938 | destroy_workqueue(fnic_event_queue); | |
939 | kmem_cache_destroy(fnic_sgl_cache[FNIC_SGL_CACHE_MAX]); | |
940 | kmem_cache_destroy(fnic_sgl_cache[FNIC_SGL_CACHE_DFLT]); | |
941 | kmem_cache_destroy(fnic_io_req_cache); | |
942 | fc_release_transport(fnic_fc_transport); | |
943 | } | |
944 | ||
945 | module_init(fnic_init_module); | |
946 | module_exit(fnic_cleanup_module); | |
947 |