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Drivers: scsi: remove __dev* attributes.
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / scsi / fnic / fnic_main.c
CommitLineData
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
49static struct kmem_cache *fnic_sgl_cache[FNIC_SGL_NUM_CACHES];
50static struct kmem_cache *fnic_io_req_cache;
51LIST_HEAD(fnic_list);
52DEFINE_SPINLOCK(fnic_list_lock);
53
54/* Supported devices by fnic module */
55static struct pci_device_id fnic_id_table[] = {
56 { PCI_DEVICE(PCI_VENDOR_ID_CISCO, PCI_DEVICE_ID_CISCO_FNIC) },
57 { 0, }
58};
59
60MODULE_DESCRIPTION(DRV_DESCRIPTION);
61MODULE_AUTHOR("Abhijeet Joglekar <abjoglek@cisco.com>, "
62 "Joseph R. Eykholt <jeykholt@cisco.com>");
63MODULE_LICENSE("GPL v2");
64MODULE_VERSION(DRV_VERSION);
65MODULE_DEVICE_TABLE(pci, fnic_id_table);
66
67unsigned int fnic_log_level;
68module_param(fnic_log_level, int, S_IRUGO|S_IWUSR);
69MODULE_PARM_DESC(fnic_log_level, "bit mask of fnic logging levels");
70
71
72static 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
80static 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
93static 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 112static void
48586820 113fnic_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		 121static void fnic_get_host_speed(struct Scsi_Host *shost);
122static struct scsi_transport_template *fnic_fc_transport;
123static struct fc_host_statistics *fnic_get_stats(struct Scsi_Host *);
124
125static 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
156static 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
173static 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
211void 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
241void 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
256static 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
282static 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
291static 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
307static 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
334static 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
385static 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 */
395static 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 402static 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
741err_out_free_exch_mgr:
52ff878c 742 fc_exch_mgr_free(lp);
5df6d737 743err_out_remove_scsi_host:
78112e55
JE		 744 fc_remove_host(lp->host);
745 scsi_remove_host(lp->host);
5df6d737
AJ		 746err_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);
750err_out_free_max_pool:
751 mempool_destroy(fnic->io_sgl_pool[FNIC_SGL_CACHE_MAX]);
752err_out_free_dflt_pool:
753 mempool_destroy(fnic->io_sgl_pool[FNIC_SGL_CACHE_DFLT]);
754err_out_free_ioreq_pool:
755 mempool_destroy(fnic->io_req_pool);
756err_out_free_resources:
757 fnic_free_vnic_resources(fnic);
5df6d737
AJ		 758err_out_clear_intr:
759 fnic_clear_intr_mode(fnic);
760err_out_dev_close:
761 vnic_dev_close(fnic->vdev);
762err_out_vnic_unregister:
763 vnic_dev_unregister(fnic->vdev);
764err_out_iounmap:
765 fnic_iounmap(fnic);
766err_out_release_regions:
767 pci_release_regions(pdev);
768err_out_disable_device:
769 pci_disable_device(pdev);
770err_out_free_hba:
771 scsi_host_put(lp->host);
772err_out:
773 return err;
774}
775
6f039790 776static 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
847static 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
854static 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
920err_pci_register:
921 fc_release_transport(fnic_fc_transport);
922err_fc_transport:
923 destroy_workqueue(fnic_event_queue);
924err_create_fnic_workq:
925 kmem_cache_destroy(fnic_io_req_cache);
926err_create_fnic_ioreq_slab:
927 kmem_cache_destroy(fnic_sgl_cache[FNIC_SGL_CACHE_MAX]);
928err_create_fnic_sgl_slab_max:
929 kmem_cache_destroy(fnic_sgl_cache[FNIC_SGL_CACHE_DFLT]);
930err_create_fnic_sgl_slab_dflt:
931 return err;
932}
933
934static 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
944module_init(fnic_init_module);
945module_exit(fnic_cleanup_module);
946
kernel source for telekom puls (alcatel/mediatek)