Commit | Line | Data |
---|---|---|
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 | ||
6f039790 | 402 | static int fnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) |
5df6d737 AJ |
403 | { |
404 | struct Scsi_Host *host; | |
405 | struct fc_lport *lp; | |
406 | struct fnic *fnic; | |
407 | mempool_t *pool; | |
408 | int err; | |
409 | int i; | |
410 | unsigned long flags; | |
411 | ||
412 | /* | |
413 | * Allocate SCSI Host and set up association between host, | |
414 | * local port, and fnic | |
415 | */ | |
86221969 CL |
416 | lp = libfc_host_alloc(&fnic_host_template, sizeof(struct fnic)); |
417 | if (!lp) { | |
418 | printk(KERN_ERR PFX "Unable to alloc libfc local port\n"); | |
5df6d737 AJ |
419 | err = -ENOMEM; |
420 | goto err_out; | |
421 | } | |
86221969 | 422 | host = lp->host; |
5df6d737 AJ |
423 | fnic = lport_priv(lp); |
424 | fnic->lport = lp; | |
78112e55 | 425 | fnic->ctlr.lp = lp; |
5df6d737 AJ |
426 | |
427 | snprintf(fnic->name, sizeof(fnic->name) - 1, "%s%d", DRV_NAME, | |
428 | host->host_no); | |
429 | ||
430 | host->transportt = fnic_fc_transport; | |
431 | ||
432 | err = scsi_init_shared_tag_map(host, FNIC_MAX_IO_REQ); | |
433 | if (err) { | |
434 | shost_printk(KERN_ERR, fnic->lport->host, | |
435 | "Unable to alloc shared tag map\n"); | |
436 | goto err_out_free_hba; | |
437 | } | |
438 | ||
439 | /* Setup PCI resources */ | |
440 | pci_set_drvdata(pdev, fnic); | |
441 | ||
442 | fnic->pdev = pdev; | |
443 | ||
444 | err = pci_enable_device(pdev); | |
445 | if (err) { | |
446 | shost_printk(KERN_ERR, fnic->lport->host, | |
447 | "Cannot enable PCI device, aborting.\n"); | |
448 | goto err_out_free_hba; | |
449 | } | |
450 | ||
451 | err = pci_request_regions(pdev, DRV_NAME); | |
452 | if (err) { | |
453 | shost_printk(KERN_ERR, fnic->lport->host, | |
454 | "Cannot enable PCI resources, aborting\n"); | |
455 | goto err_out_disable_device; | |
456 | } | |
457 | ||
458 | pci_set_master(pdev); | |
459 | ||
460 | /* Query PCI controller on system for DMA addressing | |
461 | * limitation for the device. Try 40-bit first, and | |
462 | * fail to 32-bit. | |
463 | */ | |
e3f47cc7 | 464 | err = pci_set_dma_mask(pdev, DMA_BIT_MASK(40)); |
5df6d737 | 465 | if (err) { |
e3f47cc7 | 466 | err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); |
5df6d737 AJ |
467 | if (err) { |
468 | shost_printk(KERN_ERR, fnic->lport->host, | |
469 | "No usable DMA configuration " | |
470 | "aborting\n"); | |
471 | goto err_out_release_regions; | |
472 | } | |
e3f47cc7 | 473 | err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); |
5df6d737 AJ |
474 | if (err) { |
475 | shost_printk(KERN_ERR, fnic->lport->host, | |
476 | "Unable to obtain 32-bit DMA " | |
477 | "for consistent allocations, aborting.\n"); | |
478 | goto err_out_release_regions; | |
479 | } | |
480 | } else { | |
e3f47cc7 | 481 | err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(40)); |
5df6d737 AJ |
482 | if (err) { |
483 | shost_printk(KERN_ERR, fnic->lport->host, | |
484 | "Unable to obtain 40-bit DMA " | |
485 | "for consistent allocations, aborting.\n"); | |
486 | goto err_out_release_regions; | |
487 | } | |
488 | } | |
489 | ||
490 | /* Map vNIC resources from BAR0 */ | |
491 | if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) { | |
492 | shost_printk(KERN_ERR, fnic->lport->host, | |
493 | "BAR0 not memory-map'able, aborting.\n"); | |
494 | err = -ENODEV; | |
495 | goto err_out_release_regions; | |
496 | } | |
497 | ||
498 | fnic->bar0.vaddr = pci_iomap(pdev, 0, 0); | |
499 | fnic->bar0.bus_addr = pci_resource_start(pdev, 0); | |
500 | fnic->bar0.len = pci_resource_len(pdev, 0); | |
501 | ||
502 | if (!fnic->bar0.vaddr) { | |
503 | shost_printk(KERN_ERR, fnic->lport->host, | |
504 | "Cannot memory-map BAR0 res hdr, " | |
505 | "aborting.\n"); | |
506 | err = -ENODEV; | |
507 | goto err_out_release_regions; | |
508 | } | |
509 | ||
510 | fnic->vdev = vnic_dev_register(NULL, fnic, pdev, &fnic->bar0); | |
511 | if (!fnic->vdev) { | |
512 | shost_printk(KERN_ERR, fnic->lport->host, | |
513 | "vNIC registration failed, " | |
514 | "aborting.\n"); | |
515 | err = -ENODEV; | |
516 | goto err_out_iounmap; | |
517 | } | |
518 | ||
519 | err = fnic_dev_wait(fnic->vdev, vnic_dev_open, | |
520 | vnic_dev_open_done, 0); | |
521 | if (err) { | |
522 | shost_printk(KERN_ERR, fnic->lport->host, | |
523 | "vNIC dev open failed, aborting.\n"); | |
524 | goto err_out_vnic_unregister; | |
525 | } | |
526 | ||
527 | err = vnic_dev_init(fnic->vdev, 0); | |
528 | if (err) { | |
529 | shost_printk(KERN_ERR, fnic->lport->host, | |
530 | "vNIC dev init failed, aborting.\n"); | |
531 | goto err_out_dev_close; | |
532 | } | |
533 | ||
78112e55 | 534 | err = vnic_dev_mac_addr(fnic->vdev, fnic->ctlr.ctl_src_addr); |
5df6d737 AJ |
535 | if (err) { |
536 | shost_printk(KERN_ERR, fnic->lport->host, | |
537 | "vNIC get MAC addr failed \n"); | |
538 | goto err_out_dev_close; | |
539 | } | |
78112e55 JE |
540 | /* set data_src for point-to-point mode and to keep it non-zero */ |
541 | memcpy(fnic->data_src_addr, fnic->ctlr.ctl_src_addr, ETH_ALEN); | |
5df6d737 AJ |
542 | |
543 | /* Get vNIC configuration */ | |
544 | err = fnic_get_vnic_config(fnic); | |
545 | if (err) { | |
546 | shost_printk(KERN_ERR, fnic->lport->host, | |
547 | "Get vNIC configuration failed, " | |
548 | "aborting.\n"); | |
549 | goto err_out_dev_close; | |
550 | } | |
551 | host->max_lun = fnic->config.luns_per_tgt; | |
552 | host->max_id = FNIC_MAX_FCP_TARGET; | |
da87bfab | 553 | host->max_cmd_len = FCOE_MAX_CMD_LEN; |
5df6d737 AJ |
554 | |
555 | fnic_get_res_counts(fnic); | |
556 | ||
557 | err = fnic_set_intr_mode(fnic); | |
558 | if (err) { | |
559 | shost_printk(KERN_ERR, fnic->lport->host, | |
560 | "Failed to set intr mode, " | |
561 | "aborting.\n"); | |
562 | goto err_out_dev_close; | |
563 | } | |
564 | ||
5df6d737 AJ |
565 | err = fnic_alloc_vnic_resources(fnic); |
566 | if (err) { | |
567 | shost_printk(KERN_ERR, fnic->lport->host, | |
568 | "Failed to alloc vNIC resources, " | |
569 | "aborting.\n"); | |
2e76f767 | 570 | goto err_out_clear_intr; |
5df6d737 AJ |
571 | } |
572 | ||
573 | ||
574 | /* initialize all fnic locks */ | |
575 | spin_lock_init(&fnic->fnic_lock); | |
576 | ||
577 | for (i = 0; i < FNIC_WQ_MAX; i++) | |
578 | spin_lock_init(&fnic->wq_lock[i]); | |
579 | ||
580 | for (i = 0; i < FNIC_WQ_COPY_MAX; i++) { | |
581 | spin_lock_init(&fnic->wq_copy_lock[i]); | |
582 | fnic->wq_copy_desc_low[i] = DESC_CLEAN_LOW_WATERMARK; | |
583 | fnic->fw_ack_recd[i] = 0; | |
584 | fnic->fw_ack_index[i] = -1; | |
585 | } | |
586 | ||
587 | for (i = 0; i < FNIC_IO_LOCKS; i++) | |
588 | spin_lock_init(&fnic->io_req_lock[i]); | |
589 | ||
590 | fnic->io_req_pool = mempool_create_slab_pool(2, fnic_io_req_cache); | |
591 | if (!fnic->io_req_pool) | |
592 | goto err_out_free_resources; | |
593 | ||
0c79c742 | 594 | pool = mempool_create_slab_pool(2, fnic_sgl_cache[FNIC_SGL_CACHE_DFLT]); |
5df6d737 AJ |
595 | if (!pool) |
596 | goto err_out_free_ioreq_pool; | |
597 | fnic->io_sgl_pool[FNIC_SGL_CACHE_DFLT] = pool; | |
598 | ||
0c79c742 | 599 | pool = mempool_create_slab_pool(2, fnic_sgl_cache[FNIC_SGL_CACHE_MAX]); |
5df6d737 AJ |
600 | if (!pool) |
601 | goto err_out_free_dflt_pool; | |
602 | fnic->io_sgl_pool[FNIC_SGL_CACHE_MAX] = pool; | |
603 | ||
604 | /* setup vlan config, hw inserts vlan header */ | |
605 | fnic->vlan_hw_insert = 1; | |
606 | fnic->vlan_id = 0; | |
607 | ||
78112e55 JE |
608 | /* Initialize the FIP fcoe_ctrl struct */ |
609 | fnic->ctlr.send = fnic_eth_send; | |
610 | fnic->ctlr.update_mac = fnic_update_mac; | |
611 | fnic->ctlr.get_src_addr = fnic_get_mac; | |
78112e55 JE |
612 | if (fnic->config.flags & VFCF_FIP_CAPABLE) { |
613 | shost_printk(KERN_INFO, fnic->lport->host, | |
614 | "firmware supports FIP\n"); | |
aaa5e569 VSVB |
615 | /* enable directed and multicast */ |
616 | vnic_dev_packet_filter(fnic->vdev, 1, 1, 0, 0, 0); | |
78112e55 JE |
617 | vnic_dev_add_addr(fnic->vdev, FIP_ALL_ENODE_MACS); |
618 | vnic_dev_add_addr(fnic->vdev, fnic->ctlr.ctl_src_addr); | |
3d902ac0 | 619 | fcoe_ctlr_init(&fnic->ctlr, FIP_MODE_AUTO); |
78112e55 JE |
620 | } else { |
621 | shost_printk(KERN_INFO, fnic->lport->host, | |
622 | "firmware uses non-FIP mode\n"); | |
3d902ac0 | 623 | fcoe_ctlr_init(&fnic->ctlr, FIP_MODE_NON_FIP); |
78112e55 | 624 | } |
5df6d737 AJ |
625 | fnic->state = FNIC_IN_FC_MODE; |
626 | ||
627 | /* Enable hardware stripping of vlan header on ingress */ | |
628 | fnic_set_nic_config(fnic, 0, 0, 0, 0, 0, 0, 1); | |
629 | ||
630 | /* Setup notification buffer area */ | |
631 | err = fnic_notify_set(fnic); | |
632 | if (err) { | |
633 | shost_printk(KERN_ERR, fnic->lport->host, | |
634 | "Failed to alloc notify buffer, aborting.\n"); | |
635 | goto err_out_free_max_pool; | |
636 | } | |
637 | ||
638 | /* Setup notify timer when using MSI interrupts */ | |
639 | if (vnic_dev_get_intr_mode(fnic->vdev) == VNIC_DEV_INTR_MODE_MSI) | |
640 | setup_timer(&fnic->notify_timer, | |
641 | fnic_notify_timer, (unsigned long)fnic); | |
642 | ||
643 | /* allocate RQ buffers and post them to RQ*/ | |
644 | for (i = 0; i < fnic->rq_count; i++) { | |
645 | err = vnic_rq_fill(&fnic->rq[i], fnic_alloc_rq_frame); | |
646 | if (err) { | |
647 | shost_printk(KERN_ERR, fnic->lport->host, | |
648 | "fnic_alloc_rq_frame can't alloc " | |
649 | "frame\n"); | |
650 | goto err_out_free_rq_buf; | |
651 | } | |
652 | } | |
653 | ||
654 | /* | |
655 | * Initialization done with PCI system, hardware, firmware. | |
656 | * Add host to SCSI | |
657 | */ | |
658 | err = scsi_add_host(lp->host, &pdev->dev); | |
659 | if (err) { | |
660 | shost_printk(KERN_ERR, fnic->lport->host, | |
661 | "fnic: scsi_add_host failed...exiting\n"); | |
662 | goto err_out_free_rq_buf; | |
663 | } | |
664 | ||
665 | /* Start local port initiatialization */ | |
666 | ||
667 | lp->link_up = 0; | |
5df6d737 | 668 | |
5df6d737 | 669 | lp->max_retry_count = fnic->config.flogi_retries; |
a3666955 | 670 | lp->max_rport_retry_count = fnic->config.plogi_retries; |
5df6d737 AJ |
671 | lp->service_params = (FCP_SPPF_INIT_FCN | FCP_SPPF_RD_XRDY_DIS | |
672 | FCP_SPPF_CONF_COMPL); | |
673 | if (fnic->config.flags & VFCF_FCP_SEQ_LVL_ERR) | |
674 | lp->service_params |= FCP_SPPF_RETRY; | |
675 | ||
676 | lp->boot_time = jiffies; | |
677 | lp->e_d_tov = fnic->config.ed_tov; | |
678 | lp->r_a_tov = fnic->config.ra_tov; | |
679 | lp->link_supported_speeds = FC_PORTSPEED_10GBIT; | |
680 | fc_set_wwnn(lp, fnic->config.node_wwn); | |
681 | fc_set_wwpn(lp, fnic->config.port_wwn); | |
682 | ||
e10f8c66 | 683 | fcoe_libfc_config(lp, &fnic->ctlr, &fnic_transport_template, 0); |
5df6d737 | 684 | |
52ff878c VD |
685 | if (!fc_exch_mgr_alloc(lp, FC_CLASS_3, FCPIO_HOST_EXCH_RANGE_START, |
686 | FCPIO_HOST_EXCH_RANGE_END, NULL)) { | |
687 | err = -ENOMEM; | |
688 | goto err_out_remove_scsi_host; | |
689 | } | |
690 | ||
c693a71d VSVB |
691 | fc_lport_init_stats(lp); |
692 | ||
5df6d737 AJ |
693 | fc_lport_config(lp); |
694 | ||
695 | if (fc_set_mfs(lp, fnic->config.maxdatafieldsize + | |
696 | sizeof(struct fc_frame_header))) { | |
697 | err = -EINVAL; | |
698 | goto err_out_free_exch_mgr; | |
699 | } | |
700 | fc_host_maxframe_size(lp->host) = lp->mfs; | |
48586820 | 701 | fc_host_dev_loss_tmo(lp->host) = fnic->config.port_down_timeout / 1000; |
5df6d737 AJ |
702 | |
703 | sprintf(fc_host_symbolic_name(lp->host), | |
704 | DRV_NAME " v" DRV_VERSION " over %s", fnic->name); | |
705 | ||
706 | spin_lock_irqsave(&fnic_list_lock, flags); | |
707 | list_add_tail(&fnic->list, &fnic_list); | |
708 | spin_unlock_irqrestore(&fnic_list_lock, flags); | |
709 | ||
710 | INIT_WORK(&fnic->link_work, fnic_handle_link); | |
711 | INIT_WORK(&fnic->frame_work, fnic_handle_frame); | |
712 | skb_queue_head_init(&fnic->frame_queue); | |
78112e55 | 713 | skb_queue_head_init(&fnic->tx_queue); |
5df6d737 AJ |
714 | |
715 | /* Enable all queues */ | |
716 | for (i = 0; i < fnic->raw_wq_count; i++) | |
717 | vnic_wq_enable(&fnic->wq[i]); | |
718 | for (i = 0; i < fnic->rq_count; i++) | |
719 | vnic_rq_enable(&fnic->rq[i]); | |
720 | for (i = 0; i < fnic->wq_copy_count; i++) | |
721 | vnic_wq_copy_enable(&fnic->wq_copy[i]); | |
722 | ||
723 | fc_fabric_login(lp); | |
724 | ||
725 | vnic_dev_enable(fnic->vdev); | |
2e76f767 AJ |
726 | |
727 | err = fnic_request_intr(fnic); | |
728 | if (err) { | |
729 | shost_printk(KERN_ERR, fnic->lport->host, | |
730 | "Unable to request irq.\n"); | |
731 | goto err_out_free_exch_mgr; | |
732 | } | |
733 | ||
5df6d737 AJ |
734 | for (i = 0; i < fnic->intr_count; i++) |
735 | vnic_intr_unmask(&fnic->intr[i]); | |
736 | ||
737 | fnic_notify_timer_start(fnic); | |
738 | ||
739 | return 0; | |
740 | ||
741 | err_out_free_exch_mgr: | |
52ff878c | 742 | fc_exch_mgr_free(lp); |
5df6d737 | 743 | err_out_remove_scsi_host: |
78112e55 JE |
744 | fc_remove_host(lp->host); |
745 | scsi_remove_host(lp->host); | |
5df6d737 AJ |
746 | err_out_free_rq_buf: |
747 | for (i = 0; i < fnic->rq_count; i++) | |
748 | vnic_rq_clean(&fnic->rq[i], fnic_free_rq_buf); | |
749 | vnic_dev_notify_unset(fnic->vdev); | |
750 | err_out_free_max_pool: | |
751 | mempool_destroy(fnic->io_sgl_pool[FNIC_SGL_CACHE_MAX]); | |
752 | err_out_free_dflt_pool: | |
753 | mempool_destroy(fnic->io_sgl_pool[FNIC_SGL_CACHE_DFLT]); | |
754 | err_out_free_ioreq_pool: | |
755 | mempool_destroy(fnic->io_req_pool); | |
756 | err_out_free_resources: | |
757 | fnic_free_vnic_resources(fnic); | |
5df6d737 AJ |
758 | err_out_clear_intr: |
759 | fnic_clear_intr_mode(fnic); | |
760 | err_out_dev_close: | |
761 | vnic_dev_close(fnic->vdev); | |
762 | err_out_vnic_unregister: | |
763 | vnic_dev_unregister(fnic->vdev); | |
764 | err_out_iounmap: | |
765 | fnic_iounmap(fnic); | |
766 | err_out_release_regions: | |
767 | pci_release_regions(pdev); | |
768 | err_out_disable_device: | |
769 | pci_disable_device(pdev); | |
770 | err_out_free_hba: | |
771 | scsi_host_put(lp->host); | |
772 | err_out: | |
773 | return err; | |
774 | } | |
775 | ||
6f039790 | 776 | static void fnic_remove(struct pci_dev *pdev) |
5df6d737 AJ |
777 | { |
778 | struct fnic *fnic = pci_get_drvdata(pdev); | |
78112e55 | 779 | struct fc_lport *lp = fnic->lport; |
5df6d737 AJ |
780 | unsigned long flags; |
781 | ||
782 | /* | |
783 | * Mark state so that the workqueue thread stops forwarding | |
784 | * received frames and link events to the local port. ISR and | |
785 | * other threads that can queue work items will also stop | |
786 | * creating work items on the fnic workqueue | |
787 | */ | |
788 | spin_lock_irqsave(&fnic->fnic_lock, flags); | |
789 | fnic->stop_rx_link_events = 1; | |
790 | spin_unlock_irqrestore(&fnic->fnic_lock, flags); | |
791 | ||
792 | if (vnic_dev_get_intr_mode(fnic->vdev) == VNIC_DEV_INTR_MODE_MSI) | |
793 | del_timer_sync(&fnic->notify_timer); | |
794 | ||
795 | /* | |
796 | * Flush the fnic event queue. After this call, there should | |
797 | * be no event queued for this fnic device in the workqueue | |
798 | */ | |
799 | flush_workqueue(fnic_event_queue); | |
800 | skb_queue_purge(&fnic->frame_queue); | |
78112e55 | 801 | skb_queue_purge(&fnic->tx_queue); |
5df6d737 AJ |
802 | |
803 | /* | |
804 | * Log off the fabric. This stops all remote ports, dns port, | |
805 | * logs off the fabric. This flushes all rport, disc, lport work | |
806 | * before returning | |
807 | */ | |
808 | fc_fabric_logoff(fnic->lport); | |
809 | ||
810 | spin_lock_irqsave(&fnic->fnic_lock, flags); | |
811 | fnic->in_remove = 1; | |
812 | spin_unlock_irqrestore(&fnic->fnic_lock, flags); | |
813 | ||
78112e55 JE |
814 | fcoe_ctlr_destroy(&fnic->ctlr); |
815 | fc_lport_destroy(lp); | |
5df6d737 AJ |
816 | |
817 | /* | |
818 | * This stops the fnic device, masks all interrupts. Completed | |
819 | * CQ entries are drained. Posted WQ/RQ/Copy-WQ entries are | |
820 | * cleaned up | |
821 | */ | |
822 | fnic_cleanup(fnic); | |
823 | ||
824 | BUG_ON(!skb_queue_empty(&fnic->frame_queue)); | |
78112e55 | 825 | BUG_ON(!skb_queue_empty(&fnic->tx_queue)); |
5df6d737 AJ |
826 | |
827 | spin_lock_irqsave(&fnic_list_lock, flags); | |
828 | list_del(&fnic->list); | |
829 | spin_unlock_irqrestore(&fnic_list_lock, flags); | |
830 | ||
831 | fc_remove_host(fnic->lport->host); | |
832 | scsi_remove_host(fnic->lport->host); | |
52ff878c | 833 | fc_exch_mgr_free(fnic->lport); |
5df6d737 | 834 | vnic_dev_notify_unset(fnic->vdev); |
5df6d737 | 835 | fnic_free_intr(fnic); |
2e76f767 | 836 | fnic_free_vnic_resources(fnic); |
5df6d737 AJ |
837 | fnic_clear_intr_mode(fnic); |
838 | vnic_dev_close(fnic->vdev); | |
839 | vnic_dev_unregister(fnic->vdev); | |
840 | fnic_iounmap(fnic); | |
841 | pci_release_regions(pdev); | |
842 | pci_disable_device(pdev); | |
843 | pci_set_drvdata(pdev, NULL); | |
78112e55 | 844 | scsi_host_put(lp->host); |
5df6d737 AJ |
845 | } |
846 | ||
847 | static struct pci_driver fnic_driver = { | |
848 | .name = DRV_NAME, | |
849 | .id_table = fnic_id_table, | |
850 | .probe = fnic_probe, | |
6f039790 | 851 | .remove = fnic_remove, |
5df6d737 AJ |
852 | }; |
853 | ||
854 | static int __init fnic_init_module(void) | |
855 | { | |
856 | size_t len; | |
857 | int err = 0; | |
858 | ||
859 | printk(KERN_INFO PFX "%s, ver %s\n", DRV_DESCRIPTION, DRV_VERSION); | |
860 | ||
861 | /* Create a cache for allocation of default size sgls */ | |
862 | len = sizeof(struct fnic_dflt_sgl_list); | |
863 | fnic_sgl_cache[FNIC_SGL_CACHE_DFLT] = kmem_cache_create | |
864 | ("fnic_sgl_dflt", len + FNIC_SG_DESC_ALIGN, FNIC_SG_DESC_ALIGN, | |
0c79c742 | 865 | SLAB_HWCACHE_ALIGN, |
5df6d737 AJ |
866 | NULL); |
867 | if (!fnic_sgl_cache[FNIC_SGL_CACHE_DFLT]) { | |
868 | printk(KERN_ERR PFX "failed to create fnic dflt sgl slab\n"); | |
869 | err = -ENOMEM; | |
870 | goto err_create_fnic_sgl_slab_dflt; | |
871 | } | |
872 | ||
873 | /* Create a cache for allocation of max size sgls*/ | |
874 | len = sizeof(struct fnic_sgl_list); | |
875 | fnic_sgl_cache[FNIC_SGL_CACHE_MAX] = kmem_cache_create | |
876 | ("fnic_sgl_max", len + FNIC_SG_DESC_ALIGN, FNIC_SG_DESC_ALIGN, | |
0c79c742 | 877 | SLAB_HWCACHE_ALIGN, |
5df6d737 AJ |
878 | NULL); |
879 | if (!fnic_sgl_cache[FNIC_SGL_CACHE_MAX]) { | |
880 | printk(KERN_ERR PFX "failed to create fnic max sgl slab\n"); | |
881 | err = -ENOMEM; | |
882 | goto err_create_fnic_sgl_slab_max; | |
883 | } | |
884 | ||
885 | /* Create a cache of io_req structs for use via mempool */ | |
886 | fnic_io_req_cache = kmem_cache_create("fnic_io_req", | |
887 | sizeof(struct fnic_io_req), | |
888 | 0, SLAB_HWCACHE_ALIGN, NULL); | |
889 | if (!fnic_io_req_cache) { | |
890 | printk(KERN_ERR PFX "failed to create fnic io_req slab\n"); | |
891 | err = -ENOMEM; | |
892 | goto err_create_fnic_ioreq_slab; | |
893 | } | |
894 | ||
895 | fnic_event_queue = create_singlethread_workqueue("fnic_event_wq"); | |
896 | if (!fnic_event_queue) { | |
897 | printk(KERN_ERR PFX "fnic work queue create failed\n"); | |
898 | err = -ENOMEM; | |
899 | goto err_create_fnic_workq; | |
900 | } | |
901 | ||
902 | spin_lock_init(&fnic_list_lock); | |
903 | INIT_LIST_HEAD(&fnic_list); | |
904 | ||
905 | fnic_fc_transport = fc_attach_transport(&fnic_fc_functions); | |
906 | if (!fnic_fc_transport) { | |
907 | printk(KERN_ERR PFX "fc_attach_transport error\n"); | |
908 | err = -ENOMEM; | |
909 | goto err_fc_transport; | |
910 | } | |
911 | ||
912 | /* register the driver with PCI system */ | |
913 | err = pci_register_driver(&fnic_driver); | |
914 | if (err < 0) { | |
915 | printk(KERN_ERR PFX "pci register error\n"); | |
916 | goto err_pci_register; | |
917 | } | |
918 | return err; | |
919 | ||
920 | err_pci_register: | |
921 | fc_release_transport(fnic_fc_transport); | |
922 | err_fc_transport: | |
923 | destroy_workqueue(fnic_event_queue); | |
924 | err_create_fnic_workq: | |
925 | kmem_cache_destroy(fnic_io_req_cache); | |
926 | err_create_fnic_ioreq_slab: | |
927 | kmem_cache_destroy(fnic_sgl_cache[FNIC_SGL_CACHE_MAX]); | |
928 | err_create_fnic_sgl_slab_max: | |
929 | kmem_cache_destroy(fnic_sgl_cache[FNIC_SGL_CACHE_DFLT]); | |
930 | err_create_fnic_sgl_slab_dflt: | |
931 | return err; | |
932 | } | |
933 | ||
934 | static void __exit fnic_cleanup_module(void) | |
935 | { | |
936 | pci_unregister_driver(&fnic_driver); | |
937 | destroy_workqueue(fnic_event_queue); | |
938 | kmem_cache_destroy(fnic_sgl_cache[FNIC_SGL_CACHE_MAX]); | |
939 | kmem_cache_destroy(fnic_sgl_cache[FNIC_SGL_CACHE_DFLT]); | |
940 | kmem_cache_destroy(fnic_io_req_cache); | |
941 | fc_release_transport(fnic_fc_transport); | |
942 | } | |
943 | ||
944 | module_init(fnic_init_module); | |
945 | module_exit(fnic_cleanup_module); | |
946 |