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[mirror_ubuntu-zesty-kernel.git] / drivers / scsi / qla2xxx / qla_os.c
1 /*
2 * QLogic Fibre Channel HBA Driver
3 * Copyright (c) 2003-2008 QLogic Corporation
4 *
5 * See LICENSE.qla2xxx for copyright and licensing details.
6 */
7 #include "qla_def.h"
8
9 #include <linux/moduleparam.h>
10 #include <linux/vmalloc.h>
11 #include <linux/delay.h>
12 #include <linux/kthread.h>
13 #include <linux/mutex.h>
14 #include <linux/kobject.h>
15 #include <linux/slab.h>
16
17 #include <scsi/scsi_tcq.h>
18 #include <scsi/scsicam.h>
19 #include <scsi/scsi_transport.h>
20 #include <scsi/scsi_transport_fc.h>
21
22 /*
23 * Driver version
24 */
25 char qla2x00_version_str[40];
26
27 /*
28 * SRB allocation cache
29 */
30 static struct kmem_cache *srb_cachep;
31
32 int ql2xlogintimeout = 20;
33 module_param(ql2xlogintimeout, int, S_IRUGO|S_IRUSR);
34 MODULE_PARM_DESC(ql2xlogintimeout,
35 "Login timeout value in seconds.");
36
37 int qlport_down_retry;
38 module_param(qlport_down_retry, int, S_IRUGO|S_IRUSR);
39 MODULE_PARM_DESC(qlport_down_retry,
40 "Maximum number of command retries to a port that returns "
41 "a PORT-DOWN status.");
42
43 int ql2xplogiabsentdevice;
44 module_param(ql2xplogiabsentdevice, int, S_IRUGO|S_IWUSR);
45 MODULE_PARM_DESC(ql2xplogiabsentdevice,
46 "Option to enable PLOGI to devices that are not present after "
47 "a Fabric scan. This is needed for several broken switches. "
48 "Default is 0 - no PLOGI. 1 - perfom PLOGI.");
49
50 int ql2xloginretrycount = 0;
51 module_param(ql2xloginretrycount, int, S_IRUGO|S_IRUSR);
52 MODULE_PARM_DESC(ql2xloginretrycount,
53 "Specify an alternate value for the NVRAM login retry count.");
54
55 int ql2xallocfwdump = 1;
56 module_param(ql2xallocfwdump, int, S_IRUGO|S_IRUSR);
57 MODULE_PARM_DESC(ql2xallocfwdump,
58 "Option to enable allocation of memory for a firmware dump "
59 "during HBA initialization. Memory allocation requirements "
60 "vary by ISP type. Default is 1 - allocate memory.");
61
62 int ql2xextended_error_logging;
63 module_param(ql2xextended_error_logging, int, S_IRUGO|S_IWUSR);
64 MODULE_PARM_DESC(ql2xextended_error_logging,
65 "Option to enable extended error logging, "
66 "Default is 0 - no logging. 1 - log errors.");
67
68 static void qla2x00_free_device(scsi_qla_host_t *);
69
70 int ql2xfdmienable=1;
71 module_param(ql2xfdmienable, int, S_IRUGO|S_IRUSR);
72 MODULE_PARM_DESC(ql2xfdmienable,
73 "Enables FDMI registratons "
74 "Default is 0 - no FDMI. 1 - perfom FDMI.");
75
76 #define MAX_Q_DEPTH 32
77 static int ql2xmaxqdepth = MAX_Q_DEPTH;
78 module_param(ql2xmaxqdepth, int, S_IRUGO|S_IWUSR);
79 MODULE_PARM_DESC(ql2xmaxqdepth,
80 "Maximum queue depth to report for target devices.");
81
82 int ql2xiidmaenable=1;
83 module_param(ql2xiidmaenable, int, S_IRUGO|S_IRUSR);
84 MODULE_PARM_DESC(ql2xiidmaenable,
85 "Enables iIDMA settings "
86 "Default is 1 - perform iIDMA. 0 - no iIDMA.");
87
88 int ql2xmaxqueues = 1;
89 module_param(ql2xmaxqueues, int, S_IRUGO|S_IRUSR);
90 MODULE_PARM_DESC(ql2xmaxqueues,
91 "Enables MQ settings "
92 "Default is 1 for single queue. Set it to number \
93 of queues in MQ mode.");
94
95 int ql2xmultique_tag;
96 module_param(ql2xmultique_tag, int, S_IRUGO|S_IRUSR);
97 MODULE_PARM_DESC(ql2xmultique_tag,
98 "Enables CPU affinity settings for the driver "
99 "Default is 0 for no affinity of request and response IO. "
100 "Set it to 1 to turn on the cpu affinity.");
101
102 int ql2xfwloadbin;
103 module_param(ql2xfwloadbin, int, S_IRUGO|S_IRUSR);
104 MODULE_PARM_DESC(ql2xfwloadbin,
105 "Option to specify location from which to load ISP firmware:\n"
106 " 2 -- load firmware via the request_firmware() (hotplug)\n"
107 " interface.\n"
108 " 1 -- load firmware from flash.\n"
109 " 0 -- use default semantics.\n");
110
111 int ql2xetsenable;
112 module_param(ql2xetsenable, int, S_IRUGO|S_IRUSR);
113 MODULE_PARM_DESC(ql2xetsenable,
114 "Enables firmware ETS burst."
115 "Default is 0 - skip ETS enablement.");
116
117 /*
118 * SCSI host template entry points
119 */
120 static int qla2xxx_slave_configure(struct scsi_device * device);
121 static int qla2xxx_slave_alloc(struct scsi_device *);
122 static int qla2xxx_scan_finished(struct Scsi_Host *, unsigned long time);
123 static void qla2xxx_scan_start(struct Scsi_Host *);
124 static void qla2xxx_slave_destroy(struct scsi_device *);
125 static int qla2xxx_queuecommand(struct scsi_cmnd *cmd,
126 void (*fn)(struct scsi_cmnd *));
127 static int qla2xxx_eh_abort(struct scsi_cmnd *);
128 static int qla2xxx_eh_device_reset(struct scsi_cmnd *);
129 static int qla2xxx_eh_target_reset(struct scsi_cmnd *);
130 static int qla2xxx_eh_bus_reset(struct scsi_cmnd *);
131 static int qla2xxx_eh_host_reset(struct scsi_cmnd *);
132
133 static int qla2x00_change_queue_depth(struct scsi_device *, int, int);
134 static int qla2x00_change_queue_type(struct scsi_device *, int);
135
136 struct scsi_host_template qla2xxx_driver_template = {
137 .module = THIS_MODULE,
138 .name = QLA2XXX_DRIVER_NAME,
139 .queuecommand = qla2xxx_queuecommand,
140
141 .eh_abort_handler = qla2xxx_eh_abort,
142 .eh_device_reset_handler = qla2xxx_eh_device_reset,
143 .eh_target_reset_handler = qla2xxx_eh_target_reset,
144 .eh_bus_reset_handler = qla2xxx_eh_bus_reset,
145 .eh_host_reset_handler = qla2xxx_eh_host_reset,
146
147 .slave_configure = qla2xxx_slave_configure,
148
149 .slave_alloc = qla2xxx_slave_alloc,
150 .slave_destroy = qla2xxx_slave_destroy,
151 .scan_finished = qla2xxx_scan_finished,
152 .scan_start = qla2xxx_scan_start,
153 .change_queue_depth = qla2x00_change_queue_depth,
154 .change_queue_type = qla2x00_change_queue_type,
155 .this_id = -1,
156 .cmd_per_lun = 3,
157 .use_clustering = ENABLE_CLUSTERING,
158 .sg_tablesize = SG_ALL,
159
160 .max_sectors = 0xFFFF,
161 .shost_attrs = qla2x00_host_attrs,
162 };
163
164 static struct scsi_transport_template *qla2xxx_transport_template = NULL;
165 struct scsi_transport_template *qla2xxx_transport_vport_template = NULL;
166
167 /* TODO Convert to inlines
168 *
169 * Timer routines
170 */
171
172 __inline__ void
173 qla2x00_start_timer(scsi_qla_host_t *vha, void *func, unsigned long interval)
174 {
175 init_timer(&vha->timer);
176 vha->timer.expires = jiffies + interval * HZ;
177 vha->timer.data = (unsigned long)vha;
178 vha->timer.function = (void (*)(unsigned long))func;
179 add_timer(&vha->timer);
180 vha->timer_active = 1;
181 }
182
183 static inline void
184 qla2x00_restart_timer(scsi_qla_host_t *vha, unsigned long interval)
185 {
186 mod_timer(&vha->timer, jiffies + interval * HZ);
187 }
188
189 static __inline__ void
190 qla2x00_stop_timer(scsi_qla_host_t *vha)
191 {
192 del_timer_sync(&vha->timer);
193 vha->timer_active = 0;
194 }
195
196 static int qla2x00_do_dpc(void *data);
197
198 static void qla2x00_rst_aen(scsi_qla_host_t *);
199
200 static int qla2x00_mem_alloc(struct qla_hw_data *, uint16_t, uint16_t,
201 struct req_que **, struct rsp_que **);
202 static void qla2x00_mem_free(struct qla_hw_data *);
203 static void qla2x00_sp_free_dma(srb_t *);
204
205 /* -------------------------------------------------------------------------- */
206 static int qla2x00_alloc_queues(struct qla_hw_data *ha)
207 {
208 ha->req_q_map = kzalloc(sizeof(struct req_que *) * ha->max_req_queues,
209 GFP_KERNEL);
210 if (!ha->req_q_map) {
211 qla_printk(KERN_WARNING, ha,
212 "Unable to allocate memory for request queue ptrs\n");
213 goto fail_req_map;
214 }
215
216 ha->rsp_q_map = kzalloc(sizeof(struct rsp_que *) * ha->max_rsp_queues,
217 GFP_KERNEL);
218 if (!ha->rsp_q_map) {
219 qla_printk(KERN_WARNING, ha,
220 "Unable to allocate memory for response queue ptrs\n");
221 goto fail_rsp_map;
222 }
223 set_bit(0, ha->rsp_qid_map);
224 set_bit(0, ha->req_qid_map);
225 return 1;
226
227 fail_rsp_map:
228 kfree(ha->req_q_map);
229 ha->req_q_map = NULL;
230 fail_req_map:
231 return -ENOMEM;
232 }
233
234 static void qla2x00_free_req_que(struct qla_hw_data *ha, struct req_que *req)
235 {
236 if (req && req->ring)
237 dma_free_coherent(&ha->pdev->dev,
238 (req->length + 1) * sizeof(request_t),
239 req->ring, req->dma);
240
241 kfree(req);
242 req = NULL;
243 }
244
245 static void qla2x00_free_rsp_que(struct qla_hw_data *ha, struct rsp_que *rsp)
246 {
247 if (rsp && rsp->ring)
248 dma_free_coherent(&ha->pdev->dev,
249 (rsp->length + 1) * sizeof(response_t),
250 rsp->ring, rsp->dma);
251
252 kfree(rsp);
253 rsp = NULL;
254 }
255
256 static void qla2x00_free_queues(struct qla_hw_data *ha)
257 {
258 struct req_que *req;
259 struct rsp_que *rsp;
260 int cnt;
261
262 for (cnt = 0; cnt < ha->max_req_queues; cnt++) {
263 req = ha->req_q_map[cnt];
264 qla2x00_free_req_que(ha, req);
265 }
266 kfree(ha->req_q_map);
267 ha->req_q_map = NULL;
268
269 for (cnt = 0; cnt < ha->max_rsp_queues; cnt++) {
270 rsp = ha->rsp_q_map[cnt];
271 qla2x00_free_rsp_que(ha, rsp);
272 }
273 kfree(ha->rsp_q_map);
274 ha->rsp_q_map = NULL;
275 }
276
277 static int qla25xx_setup_mode(struct scsi_qla_host *vha)
278 {
279 uint16_t options = 0;
280 int ques, req, ret;
281 struct qla_hw_data *ha = vha->hw;
282
283 if (!(ha->fw_attributes & BIT_6)) {
284 qla_printk(KERN_INFO, ha,
285 "Firmware is not multi-queue capable\n");
286 goto fail;
287 }
288 if (ql2xmultique_tag) {
289 /* create a request queue for IO */
290 options |= BIT_7;
291 req = qla25xx_create_req_que(ha, options, 0, 0, -1,
292 QLA_DEFAULT_QUE_QOS);
293 if (!req) {
294 qla_printk(KERN_WARNING, ha,
295 "Can't create request queue\n");
296 goto fail;
297 }
298 ha->wq = create_workqueue("qla2xxx_wq");
299 vha->req = ha->req_q_map[req];
300 options |= BIT_1;
301 for (ques = 1; ques < ha->max_rsp_queues; ques++) {
302 ret = qla25xx_create_rsp_que(ha, options, 0, 0, req);
303 if (!ret) {
304 qla_printk(KERN_WARNING, ha,
305 "Response Queue create failed\n");
306 goto fail2;
307 }
308 }
309 ha->flags.cpu_affinity_enabled = 1;
310
311 DEBUG2(qla_printk(KERN_INFO, ha,
312 "CPU affinity mode enabled, no. of response"
313 " queues:%d, no. of request queues:%d\n",
314 ha->max_rsp_queues, ha->max_req_queues));
315 }
316 return 0;
317 fail2:
318 qla25xx_delete_queues(vha);
319 destroy_workqueue(ha->wq);
320 ha->wq = NULL;
321 fail:
322 ha->mqenable = 0;
323 kfree(ha->req_q_map);
324 kfree(ha->rsp_q_map);
325 ha->max_req_queues = ha->max_rsp_queues = 1;
326 return 1;
327 }
328
329 static char *
330 qla2x00_pci_info_str(struct scsi_qla_host *vha, char *str)
331 {
332 struct qla_hw_data *ha = vha->hw;
333 static char *pci_bus_modes[] = {
334 "33", "66", "100", "133",
335 };
336 uint16_t pci_bus;
337
338 strcpy(str, "PCI");
339 pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
340 if (pci_bus) {
341 strcat(str, "-X (");
342 strcat(str, pci_bus_modes[pci_bus]);
343 } else {
344 pci_bus = (ha->pci_attr & BIT_8) >> 8;
345 strcat(str, " (");
346 strcat(str, pci_bus_modes[pci_bus]);
347 }
348 strcat(str, " MHz)");
349
350 return (str);
351 }
352
353 static char *
354 qla24xx_pci_info_str(struct scsi_qla_host *vha, char *str)
355 {
356 static char *pci_bus_modes[] = { "33", "66", "100", "133", };
357 struct qla_hw_data *ha = vha->hw;
358 uint32_t pci_bus;
359 int pcie_reg;
360
361 pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
362 if (pcie_reg) {
363 char lwstr[6];
364 uint16_t pcie_lstat, lspeed, lwidth;
365
366 pcie_reg += 0x12;
367 pci_read_config_word(ha->pdev, pcie_reg, &pcie_lstat);
368 lspeed = pcie_lstat & (BIT_0 | BIT_1 | BIT_2 | BIT_3);
369 lwidth = (pcie_lstat &
370 (BIT_4 | BIT_5 | BIT_6 | BIT_7 | BIT_8 | BIT_9)) >> 4;
371
372 strcpy(str, "PCIe (");
373 if (lspeed == 1)
374 strcat(str, "2.5GT/s ");
375 else if (lspeed == 2)
376 strcat(str, "5.0GT/s ");
377 else
378 strcat(str, "<unknown> ");
379 snprintf(lwstr, sizeof(lwstr), "x%d)", lwidth);
380 strcat(str, lwstr);
381
382 return str;
383 }
384
385 strcpy(str, "PCI");
386 pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
387 if (pci_bus == 0 || pci_bus == 8) {
388 strcat(str, " (");
389 strcat(str, pci_bus_modes[pci_bus >> 3]);
390 } else {
391 strcat(str, "-X ");
392 if (pci_bus & BIT_2)
393 strcat(str, "Mode 2");
394 else
395 strcat(str, "Mode 1");
396 strcat(str, " (");
397 strcat(str, pci_bus_modes[pci_bus & ~BIT_2]);
398 }
399 strcat(str, " MHz)");
400
401 return str;
402 }
403
404 static char *
405 qla2x00_fw_version_str(struct scsi_qla_host *vha, char *str)
406 {
407 char un_str[10];
408 struct qla_hw_data *ha = vha->hw;
409
410 sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
411 ha->fw_minor_version,
412 ha->fw_subminor_version);
413
414 if (ha->fw_attributes & BIT_9) {
415 strcat(str, "FLX");
416 return (str);
417 }
418
419 switch (ha->fw_attributes & 0xFF) {
420 case 0x7:
421 strcat(str, "EF");
422 break;
423 case 0x17:
424 strcat(str, "TP");
425 break;
426 case 0x37:
427 strcat(str, "IP");
428 break;
429 case 0x77:
430 strcat(str, "VI");
431 break;
432 default:
433 sprintf(un_str, "(%x)", ha->fw_attributes);
434 strcat(str, un_str);
435 break;
436 }
437 if (ha->fw_attributes & 0x100)
438 strcat(str, "X");
439
440 return (str);
441 }
442
443 static char *
444 qla24xx_fw_version_str(struct scsi_qla_host *vha, char *str)
445 {
446 struct qla_hw_data *ha = vha->hw;
447
448 sprintf(str, "%d.%02d.%02d (%x)", ha->fw_major_version,
449 ha->fw_minor_version, ha->fw_subminor_version, ha->fw_attributes);
450 return str;
451 }
452
453 static inline srb_t *
454 qla2x00_get_new_sp(scsi_qla_host_t *vha, fc_port_t *fcport,
455 struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
456 {
457 srb_t *sp;
458 struct qla_hw_data *ha = vha->hw;
459
460 sp = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
461 if (!sp)
462 return sp;
463
464 sp->fcport = fcport;
465 sp->cmd = cmd;
466 sp->flags = 0;
467 CMD_SP(cmd) = (void *)sp;
468 cmd->scsi_done = done;
469 sp->ctx = NULL;
470
471 return sp;
472 }
473
474 static int
475 qla2xxx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
476 {
477 scsi_qla_host_t *vha = shost_priv(cmd->device->host);
478 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
479 struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
480 struct qla_hw_data *ha = vha->hw;
481 struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev);
482 srb_t *sp;
483 int rval;
484
485 if (ha->flags.eeh_busy) {
486 if (ha->flags.pci_channel_io_perm_failure)
487 cmd->result = DID_NO_CONNECT << 16;
488 else
489 cmd->result = DID_REQUEUE << 16;
490 goto qc24_fail_command;
491 }
492
493 rval = fc_remote_port_chkready(rport);
494 if (rval) {
495 cmd->result = rval;
496 goto qc24_fail_command;
497 }
498
499 /* Close window on fcport/rport state-transitioning. */
500 if (fcport->drport)
501 goto qc24_target_busy;
502
503 if (atomic_read(&fcport->state) != FCS_ONLINE) {
504 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
505 atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
506 cmd->result = DID_NO_CONNECT << 16;
507 goto qc24_fail_command;
508 }
509 goto qc24_target_busy;
510 }
511
512 spin_unlock_irq(vha->host->host_lock);
513
514 sp = qla2x00_get_new_sp(base_vha, fcport, cmd, done);
515 if (!sp)
516 goto qc24_host_busy_lock;
517
518 rval = ha->isp_ops->start_scsi(sp);
519 if (rval != QLA_SUCCESS)
520 goto qc24_host_busy_free_sp;
521
522 spin_lock_irq(vha->host->host_lock);
523
524 return 0;
525
526 qc24_host_busy_free_sp:
527 qla2x00_sp_free_dma(sp);
528 mempool_free(sp, ha->srb_mempool);
529
530 qc24_host_busy_lock:
531 spin_lock_irq(vha->host->host_lock);
532 return SCSI_MLQUEUE_HOST_BUSY;
533
534 qc24_target_busy:
535 return SCSI_MLQUEUE_TARGET_BUSY;
536
537 qc24_fail_command:
538 done(cmd);
539
540 return 0;
541 }
542
543
544 /*
545 * qla2x00_eh_wait_on_command
546 * Waits for the command to be returned by the Firmware for some
547 * max time.
548 *
549 * Input:
550 * cmd = Scsi Command to wait on.
551 *
552 * Return:
553 * Not Found : 0
554 * Found : 1
555 */
556 static int
557 qla2x00_eh_wait_on_command(struct scsi_cmnd *cmd)
558 {
559 #define ABORT_POLLING_PERIOD 1000
560 #define ABORT_WAIT_ITER ((10 * 1000) / (ABORT_POLLING_PERIOD))
561 unsigned long wait_iter = ABORT_WAIT_ITER;
562 scsi_qla_host_t *vha = shost_priv(cmd->device->host);
563 struct qla_hw_data *ha = vha->hw;
564 int ret = QLA_SUCCESS;
565
566 if (unlikely(pci_channel_offline(ha->pdev)) || ha->flags.eeh_busy) {
567 DEBUG17(qla_printk(KERN_WARNING, ha, "return:eh_wait\n"));
568 return ret;
569 }
570
571 while (CMD_SP(cmd) && wait_iter--) {
572 msleep(ABORT_POLLING_PERIOD);
573 }
574 if (CMD_SP(cmd))
575 ret = QLA_FUNCTION_FAILED;
576
577 return ret;
578 }
579
580 /*
581 * qla2x00_wait_for_hba_online
582 * Wait till the HBA is online after going through
583 * <= MAX_RETRIES_OF_ISP_ABORT or
584 * finally HBA is disabled ie marked offline
585 *
586 * Input:
587 * ha - pointer to host adapter structure
588 *
589 * Note:
590 * Does context switching-Release SPIN_LOCK
591 * (if any) before calling this routine.
592 *
593 * Return:
594 * Success (Adapter is online) : 0
595 * Failed (Adapter is offline/disabled) : 1
596 */
597 int
598 qla2x00_wait_for_hba_online(scsi_qla_host_t *vha)
599 {
600 int return_status;
601 unsigned long wait_online;
602 struct qla_hw_data *ha = vha->hw;
603 scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
604
605 wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
606 while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
607 test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
608 test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
609 ha->dpc_active) && time_before(jiffies, wait_online)) {
610
611 msleep(1000);
612 }
613 if (base_vha->flags.online)
614 return_status = QLA_SUCCESS;
615 else
616 return_status = QLA_FUNCTION_FAILED;
617
618 return (return_status);
619 }
620
621 int
622 qla2x00_wait_for_chip_reset(scsi_qla_host_t *vha)
623 {
624 int return_status;
625 unsigned long wait_reset;
626 struct qla_hw_data *ha = vha->hw;
627 scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
628
629 wait_reset = jiffies + (MAX_LOOP_TIMEOUT * HZ);
630 while (((test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags)) ||
631 test_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags) ||
632 test_bit(ISP_ABORT_RETRY, &base_vha->dpc_flags) ||
633 ha->dpc_active) && time_before(jiffies, wait_reset)) {
634
635 msleep(1000);
636
637 if (!test_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags) &&
638 ha->flags.chip_reset_done)
639 break;
640 }
641 if (ha->flags.chip_reset_done)
642 return_status = QLA_SUCCESS;
643 else
644 return_status = QLA_FUNCTION_FAILED;
645
646 return return_status;
647 }
648
649 /*
650 * qla2x00_wait_for_loop_ready
651 * Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
652 * to be in LOOP_READY state.
653 * Input:
654 * ha - pointer to host adapter structure
655 *
656 * Note:
657 * Does context switching-Release SPIN_LOCK
658 * (if any) before calling this routine.
659 *
660 *
661 * Return:
662 * Success (LOOP_READY) : 0
663 * Failed (LOOP_NOT_READY) : 1
664 */
665 static inline int
666 qla2x00_wait_for_loop_ready(scsi_qla_host_t *vha)
667 {
668 int return_status = QLA_SUCCESS;
669 unsigned long loop_timeout ;
670 struct qla_hw_data *ha = vha->hw;
671 scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
672
673 /* wait for 5 min at the max for loop to be ready */
674 loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ);
675
676 while ((!atomic_read(&base_vha->loop_down_timer) &&
677 atomic_read(&base_vha->loop_state) == LOOP_DOWN) ||
678 atomic_read(&base_vha->loop_state) != LOOP_READY) {
679 if (atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
680 return_status = QLA_FUNCTION_FAILED;
681 break;
682 }
683 msleep(1000);
684 if (time_after_eq(jiffies, loop_timeout)) {
685 return_status = QLA_FUNCTION_FAILED;
686 break;
687 }
688 }
689 return (return_status);
690 }
691
692 /**************************************************************************
693 * qla2xxx_eh_abort
694 *
695 * Description:
696 * The abort function will abort the specified command.
697 *
698 * Input:
699 * cmd = Linux SCSI command packet to be aborted.
700 *
701 * Returns:
702 * Either SUCCESS or FAILED.
703 *
704 * Note:
705 * Only return FAILED if command not returned by firmware.
706 **************************************************************************/
707 static int
708 qla2xxx_eh_abort(struct scsi_cmnd *cmd)
709 {
710 scsi_qla_host_t *vha = shost_priv(cmd->device->host);
711 srb_t *sp;
712 int ret, i;
713 unsigned int id, lun;
714 unsigned long serial;
715 unsigned long flags;
716 int wait = 0;
717 struct qla_hw_data *ha = vha->hw;
718 struct req_que *req = vha->req;
719 srb_t *spt;
720
721 fc_block_scsi_eh(cmd);
722
723 if (!CMD_SP(cmd))
724 return SUCCESS;
725
726 ret = SUCCESS;
727
728 id = cmd->device->id;
729 lun = cmd->device->lun;
730 serial = cmd->serial_number;
731 spt = (srb_t *) CMD_SP(cmd);
732 if (!spt)
733 return SUCCESS;
734
735 /* Check active list for command command. */
736 spin_lock_irqsave(&ha->hardware_lock, flags);
737 for (i = 1; i < MAX_OUTSTANDING_COMMANDS; i++) {
738 sp = req->outstanding_cmds[i];
739
740 if (sp == NULL)
741 continue;
742 if (sp->ctx)
743 continue;
744 if (sp->cmd != cmd)
745 continue;
746
747 DEBUG2(printk("%s(%ld): aborting sp %p from RISC."
748 " pid=%ld.\n", __func__, vha->host_no, sp, serial));
749
750 spin_unlock_irqrestore(&ha->hardware_lock, flags);
751 if (ha->isp_ops->abort_command(sp)) {
752 DEBUG2(printk("%s(%ld): abort_command "
753 "mbx failed.\n", __func__, vha->host_no));
754 ret = FAILED;
755 } else {
756 DEBUG3(printk("%s(%ld): abort_command "
757 "mbx success.\n", __func__, vha->host_no));
758 wait = 1;
759 }
760 spin_lock_irqsave(&ha->hardware_lock, flags);
761 break;
762 }
763 spin_unlock_irqrestore(&ha->hardware_lock, flags);
764
765 /* Wait for the command to be returned. */
766 if (wait) {
767 if (qla2x00_eh_wait_on_command(cmd) != QLA_SUCCESS) {
768 qla_printk(KERN_ERR, ha,
769 "scsi(%ld:%d:%d): Abort handler timed out -- %lx "
770 "%x.\n", vha->host_no, id, lun, serial, ret);
771 ret = FAILED;
772 }
773 }
774
775 qla_printk(KERN_INFO, ha,
776 "scsi(%ld:%d:%d): Abort command issued -- %d %lx %x.\n",
777 vha->host_no, id, lun, wait, serial, ret);
778
779 return ret;
780 }
781
782 enum nexus_wait_type {
783 WAIT_HOST = 0,
784 WAIT_TARGET,
785 WAIT_LUN,
786 };
787
788 static int
789 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *vha, unsigned int t,
790 unsigned int l, srb_t *sp, enum nexus_wait_type type)
791 {
792 int cnt, match, status;
793 unsigned long flags;
794 struct qla_hw_data *ha = vha->hw;
795 struct req_que *req;
796
797 status = QLA_SUCCESS;
798 if (!sp)
799 return status;
800
801 spin_lock_irqsave(&ha->hardware_lock, flags);
802 req = vha->req;
803 for (cnt = 1; status == QLA_SUCCESS &&
804 cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
805 sp = req->outstanding_cmds[cnt];
806 if (!sp)
807 continue;
808 if (sp->ctx)
809 continue;
810 if (vha->vp_idx != sp->fcport->vha->vp_idx)
811 continue;
812 match = 0;
813 switch (type) {
814 case WAIT_HOST:
815 match = 1;
816 break;
817 case WAIT_TARGET:
818 match = sp->cmd->device->id == t;
819 break;
820 case WAIT_LUN:
821 match = (sp->cmd->device->id == t &&
822 sp->cmd->device->lun == l);
823 break;
824 }
825 if (!match)
826 continue;
827
828 spin_unlock_irqrestore(&ha->hardware_lock, flags);
829 status = qla2x00_eh_wait_on_command(sp->cmd);
830 spin_lock_irqsave(&ha->hardware_lock, flags);
831 }
832 spin_unlock_irqrestore(&ha->hardware_lock, flags);
833
834 return status;
835 }
836
837 static char *reset_errors[] = {
838 "HBA not online",
839 "HBA not ready",
840 "Task management failed",
841 "Waiting for command completions",
842 };
843
844 static int
845 __qla2xxx_eh_generic_reset(char *name, enum nexus_wait_type type,
846 struct scsi_cmnd *cmd, int (*do_reset)(struct fc_port *, unsigned int, int))
847 {
848 scsi_qla_host_t *vha = shost_priv(cmd->device->host);
849 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
850 int err;
851
852 fc_block_scsi_eh(cmd);
853
854 if (!fcport)
855 return FAILED;
856
857 qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET ISSUED.\n",
858 vha->host_no, cmd->device->id, cmd->device->lun, name);
859
860 err = 0;
861 if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS)
862 goto eh_reset_failed;
863 err = 1;
864 if (qla2x00_wait_for_loop_ready(vha) != QLA_SUCCESS)
865 goto eh_reset_failed;
866 err = 2;
867 if (do_reset(fcport, cmd->device->lun, cmd->request->cpu + 1)
868 != QLA_SUCCESS)
869 goto eh_reset_failed;
870 err = 3;
871 if (qla2x00_eh_wait_for_pending_commands(vha, cmd->device->id,
872 cmd->device->lun, (srb_t *) CMD_SP(cmd), type) != QLA_SUCCESS)
873 goto eh_reset_failed;
874
875 qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET SUCCEEDED.\n",
876 vha->host_no, cmd->device->id, cmd->device->lun, name);
877
878 return SUCCESS;
879
880 eh_reset_failed:
881 qla_printk(KERN_INFO, vha->hw, "scsi(%ld:%d:%d): %s RESET FAILED: %s.\n"
882 , vha->host_no, cmd->device->id, cmd->device->lun, name,
883 reset_errors[err]);
884 return FAILED;
885 }
886
887 static int
888 qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
889 {
890 scsi_qla_host_t *vha = shost_priv(cmd->device->host);
891 struct qla_hw_data *ha = vha->hw;
892
893 return __qla2xxx_eh_generic_reset("DEVICE", WAIT_LUN, cmd,
894 ha->isp_ops->lun_reset);
895 }
896
897 static int
898 qla2xxx_eh_target_reset(struct scsi_cmnd *cmd)
899 {
900 scsi_qla_host_t *vha = shost_priv(cmd->device->host);
901 struct qla_hw_data *ha = vha->hw;
902
903 return __qla2xxx_eh_generic_reset("TARGET", WAIT_TARGET, cmd,
904 ha->isp_ops->target_reset);
905 }
906
907 /**************************************************************************
908 * qla2xxx_eh_bus_reset
909 *
910 * Description:
911 * The bus reset function will reset the bus and abort any executing
912 * commands.
913 *
914 * Input:
915 * cmd = Linux SCSI command packet of the command that cause the
916 * bus reset.
917 *
918 * Returns:
919 * SUCCESS/FAILURE (defined as macro in scsi.h).
920 *
921 **************************************************************************/
922 static int
923 qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
924 {
925 scsi_qla_host_t *vha = shost_priv(cmd->device->host);
926 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
927 int ret = FAILED;
928 unsigned int id, lun;
929 unsigned long serial;
930 srb_t *sp = (srb_t *) CMD_SP(cmd);
931
932 fc_block_scsi_eh(cmd);
933
934 id = cmd->device->id;
935 lun = cmd->device->lun;
936 serial = cmd->serial_number;
937
938 if (!fcport)
939 return ret;
940
941 qla_printk(KERN_INFO, vha->hw,
942 "scsi(%ld:%d:%d): BUS RESET ISSUED.\n", vha->host_no, id, lun);
943
944 if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
945 DEBUG2(printk("%s failed:board disabled\n",__func__));
946 goto eh_bus_reset_done;
947 }
948
949 if (qla2x00_wait_for_loop_ready(vha) == QLA_SUCCESS) {
950 if (qla2x00_loop_reset(vha) == QLA_SUCCESS)
951 ret = SUCCESS;
952 }
953 if (ret == FAILED)
954 goto eh_bus_reset_done;
955
956 /* Flush outstanding commands. */
957 if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, sp, WAIT_HOST) !=
958 QLA_SUCCESS)
959 ret = FAILED;
960
961 eh_bus_reset_done:
962 qla_printk(KERN_INFO, vha->hw, "%s: reset %s\n", __func__,
963 (ret == FAILED) ? "failed" : "succeded");
964
965 return ret;
966 }
967
968 /**************************************************************************
969 * qla2xxx_eh_host_reset
970 *
971 * Description:
972 * The reset function will reset the Adapter.
973 *
974 * Input:
975 * cmd = Linux SCSI command packet of the command that cause the
976 * adapter reset.
977 *
978 * Returns:
979 * Either SUCCESS or FAILED.
980 *
981 * Note:
982 **************************************************************************/
983 static int
984 qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
985 {
986 scsi_qla_host_t *vha = shost_priv(cmd->device->host);
987 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
988 struct qla_hw_data *ha = vha->hw;
989 int ret = FAILED;
990 unsigned int id, lun;
991 unsigned long serial;
992 srb_t *sp = (srb_t *) CMD_SP(cmd);
993 scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
994
995 fc_block_scsi_eh(cmd);
996
997 id = cmd->device->id;
998 lun = cmd->device->lun;
999 serial = cmd->serial_number;
1000
1001 if (!fcport)
1002 return ret;
1003
1004 qla_printk(KERN_INFO, ha,
1005 "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", vha->host_no, id, lun);
1006
1007 if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS)
1008 goto eh_host_reset_lock;
1009
1010 /*
1011 * Fixme-may be dpc thread is active and processing
1012 * loop_resync,so wait a while for it to
1013 * be completed and then issue big hammer.Otherwise
1014 * it may cause I/O failure as big hammer marks the
1015 * devices as lost kicking of the port_down_timer
1016 * while dpc is stuck for the mailbox to complete.
1017 */
1018 qla2x00_wait_for_loop_ready(vha);
1019 if (vha != base_vha) {
1020 if (qla2x00_vp_abort_isp(vha))
1021 goto eh_host_reset_lock;
1022 } else {
1023 if (ha->wq)
1024 flush_workqueue(ha->wq);
1025
1026 set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1027 if (qla2x00_abort_isp(base_vha)) {
1028 clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1029 /* failed. schedule dpc to try */
1030 set_bit(ISP_ABORT_NEEDED, &base_vha->dpc_flags);
1031
1032 if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS)
1033 goto eh_host_reset_lock;
1034 }
1035 clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
1036 }
1037
1038 /* Waiting for command to be returned to OS.*/
1039 if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0, sp, WAIT_HOST) ==
1040 QLA_SUCCESS)
1041 ret = SUCCESS;
1042
1043 eh_host_reset_lock:
1044 qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
1045 (ret == FAILED) ? "failed" : "succeded");
1046
1047 return ret;
1048 }
1049
1050 /*
1051 * qla2x00_loop_reset
1052 * Issue loop reset.
1053 *
1054 * Input:
1055 * ha = adapter block pointer.
1056 *
1057 * Returns:
1058 * 0 = success
1059 */
1060 int
1061 qla2x00_loop_reset(scsi_qla_host_t *vha)
1062 {
1063 int ret;
1064 struct fc_port *fcport;
1065 struct qla_hw_data *ha = vha->hw;
1066
1067 if (ha->flags.enable_target_reset) {
1068 list_for_each_entry(fcport, &vha->vp_fcports, list) {
1069 if (fcport->port_type != FCT_TARGET)
1070 continue;
1071
1072 ret = ha->isp_ops->target_reset(fcport, 0, 0);
1073 if (ret != QLA_SUCCESS) {
1074 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1075 "target_reset=%d d_id=%x.\n", __func__,
1076 vha->host_no, ret, fcport->d_id.b24));
1077 }
1078 }
1079 }
1080
1081 if (ha->flags.enable_lip_full_login && !IS_QLA81XX(ha)) {
1082 ret = qla2x00_full_login_lip(vha);
1083 if (ret != QLA_SUCCESS) {
1084 DEBUG2_3(printk("%s(%ld): failed: "
1085 "full_login_lip=%d.\n", __func__, vha->host_no,
1086 ret));
1087 }
1088 atomic_set(&vha->loop_state, LOOP_DOWN);
1089 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
1090 qla2x00_mark_all_devices_lost(vha, 0);
1091 qla2x00_wait_for_loop_ready(vha);
1092 }
1093
1094 if (ha->flags.enable_lip_reset) {
1095 ret = qla2x00_lip_reset(vha);
1096 if (ret != QLA_SUCCESS) {
1097 DEBUG2_3(printk("%s(%ld): failed: "
1098 "lip_reset=%d.\n", __func__, vha->host_no, ret));
1099 } else
1100 qla2x00_wait_for_loop_ready(vha);
1101 }
1102
1103 /* Issue marker command only when we are going to start the I/O */
1104 vha->marker_needed = 1;
1105
1106 return QLA_SUCCESS;
1107 }
1108
1109 void
1110 qla2x00_abort_all_cmds(scsi_qla_host_t *vha, int res)
1111 {
1112 int que, cnt;
1113 unsigned long flags;
1114 srb_t *sp;
1115 struct srb_ctx *ctx;
1116 struct qla_hw_data *ha = vha->hw;
1117 struct req_que *req;
1118
1119 spin_lock_irqsave(&ha->hardware_lock, flags);
1120 for (que = 0; que < ha->max_req_queues; que++) {
1121 req = ha->req_q_map[que];
1122 if (!req)
1123 continue;
1124 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
1125 sp = req->outstanding_cmds[cnt];
1126 if (sp) {
1127 req->outstanding_cmds[cnt] = NULL;
1128 if (!sp->ctx) {
1129 sp->cmd->result = res;
1130 qla2x00_sp_compl(ha, sp);
1131 } else {
1132 ctx = sp->ctx;
1133 if (ctx->type == SRB_LOGIN_CMD || ctx->type == SRB_LOGOUT_CMD) {
1134 del_timer_sync(&ctx->timer);
1135 ctx->free(sp);
1136 } else {
1137 struct srb_bsg* sp_bsg = (struct srb_bsg*)sp->ctx;
1138 if (sp_bsg->bsg_job->request->msgcode == FC_BSG_HST_CT)
1139 kfree(sp->fcport);
1140 sp_bsg->bsg_job->req->errors = 0;
1141 sp_bsg->bsg_job->reply->result = res;
1142 sp_bsg->bsg_job->job_done(sp_bsg->bsg_job);
1143 kfree(sp->ctx);
1144 mempool_free(sp, ha->srb_mempool);
1145 }
1146 }
1147 }
1148 }
1149 }
1150 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1151 }
1152
1153 static int
1154 qla2xxx_slave_alloc(struct scsi_device *sdev)
1155 {
1156 struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1157
1158 if (!rport || fc_remote_port_chkready(rport))
1159 return -ENXIO;
1160
1161 sdev->hostdata = *(fc_port_t **)rport->dd_data;
1162
1163 return 0;
1164 }
1165
1166 static int
1167 qla2xxx_slave_configure(struct scsi_device *sdev)
1168 {
1169 scsi_qla_host_t *vha = shost_priv(sdev->host);
1170 struct qla_hw_data *ha = vha->hw;
1171 struct fc_rport *rport = starget_to_rport(sdev->sdev_target);
1172 struct req_que *req = vha->req;
1173
1174 if (sdev->tagged_supported)
1175 scsi_activate_tcq(sdev, req->max_q_depth);
1176 else
1177 scsi_deactivate_tcq(sdev, req->max_q_depth);
1178
1179 rport->dev_loss_tmo = ha->port_down_retry_count;
1180
1181 return 0;
1182 }
1183
1184 static void
1185 qla2xxx_slave_destroy(struct scsi_device *sdev)
1186 {
1187 sdev->hostdata = NULL;
1188 }
1189
1190 static void qla2x00_handle_queue_full(struct scsi_device *sdev, int qdepth)
1191 {
1192 fc_port_t *fcport = (struct fc_port *) sdev->hostdata;
1193
1194 if (!scsi_track_queue_full(sdev, qdepth))
1195 return;
1196
1197 DEBUG2(qla_printk(KERN_INFO, fcport->vha->hw,
1198 "scsi(%ld:%d:%d:%d): Queue depth adjusted-down to %d.\n",
1199 fcport->vha->host_no, sdev->channel, sdev->id, sdev->lun,
1200 sdev->queue_depth));
1201 }
1202
1203 static void qla2x00_adjust_sdev_qdepth_up(struct scsi_device *sdev, int qdepth)
1204 {
1205 fc_port_t *fcport = sdev->hostdata;
1206 struct scsi_qla_host *vha = fcport->vha;
1207 struct qla_hw_data *ha = vha->hw;
1208 struct req_que *req = NULL;
1209
1210 req = vha->req;
1211 if (!req)
1212 return;
1213
1214 if (req->max_q_depth <= sdev->queue_depth || req->max_q_depth < qdepth)
1215 return;
1216
1217 if (sdev->ordered_tags)
1218 scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, qdepth);
1219 else
1220 scsi_adjust_queue_depth(sdev, MSG_SIMPLE_TAG, qdepth);
1221
1222 DEBUG2(qla_printk(KERN_INFO, ha,
1223 "scsi(%ld:%d:%d:%d): Queue depth adjusted-up to %d.\n",
1224 fcport->vha->host_no, sdev->channel, sdev->id, sdev->lun,
1225 sdev->queue_depth));
1226 }
1227
1228 static int
1229 qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason)
1230 {
1231 switch (reason) {
1232 case SCSI_QDEPTH_DEFAULT:
1233 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1234 break;
1235 case SCSI_QDEPTH_QFULL:
1236 qla2x00_handle_queue_full(sdev, qdepth);
1237 break;
1238 case SCSI_QDEPTH_RAMP_UP:
1239 qla2x00_adjust_sdev_qdepth_up(sdev, qdepth);
1240 break;
1241 default:
1242 return -EOPNOTSUPP;
1243 }
1244
1245 return sdev->queue_depth;
1246 }
1247
1248 static int
1249 qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1250 {
1251 if (sdev->tagged_supported) {
1252 scsi_set_tag_type(sdev, tag_type);
1253 if (tag_type)
1254 scsi_activate_tcq(sdev, sdev->queue_depth);
1255 else
1256 scsi_deactivate_tcq(sdev, sdev->queue_depth);
1257 } else
1258 tag_type = 0;
1259
1260 return tag_type;
1261 }
1262
1263 /**
1264 * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1265 * @ha: HA context
1266 *
1267 * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1268 * supported addressing method.
1269 */
1270 static void
1271 qla2x00_config_dma_addressing(struct qla_hw_data *ha)
1272 {
1273 /* Assume a 32bit DMA mask. */
1274 ha->flags.enable_64bit_addressing = 0;
1275
1276 if (!dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(64))) {
1277 /* Any upper-dword bits set? */
1278 if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1279 !pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(64))) {
1280 /* Ok, a 64bit DMA mask is applicable. */
1281 ha->flags.enable_64bit_addressing = 1;
1282 ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64;
1283 ha->isp_ops->build_iocbs = qla2x00_build_scsi_iocbs_64;
1284 return;
1285 }
1286 }
1287
1288 dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(32));
1289 pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(32));
1290 }
1291
1292 static void
1293 qla2x00_enable_intrs(struct qla_hw_data *ha)
1294 {
1295 unsigned long flags = 0;
1296 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1297
1298 spin_lock_irqsave(&ha->hardware_lock, flags);
1299 ha->interrupts_on = 1;
1300 /* enable risc and host interrupts */
1301 WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1302 RD_REG_WORD(&reg->ictrl);
1303 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1304
1305 }
1306
1307 static void
1308 qla2x00_disable_intrs(struct qla_hw_data *ha)
1309 {
1310 unsigned long flags = 0;
1311 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1312
1313 spin_lock_irqsave(&ha->hardware_lock, flags);
1314 ha->interrupts_on = 0;
1315 /* disable risc and host interrupts */
1316 WRT_REG_WORD(&reg->ictrl, 0);
1317 RD_REG_WORD(&reg->ictrl);
1318 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1319 }
1320
1321 static void
1322 qla24xx_enable_intrs(struct qla_hw_data *ha)
1323 {
1324 unsigned long flags = 0;
1325 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1326
1327 spin_lock_irqsave(&ha->hardware_lock, flags);
1328 ha->interrupts_on = 1;
1329 WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1330 RD_REG_DWORD(&reg->ictrl);
1331 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1332 }
1333
1334 static void
1335 qla24xx_disable_intrs(struct qla_hw_data *ha)
1336 {
1337 unsigned long flags = 0;
1338 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1339
1340 if (IS_NOPOLLING_TYPE(ha))
1341 return;
1342 spin_lock_irqsave(&ha->hardware_lock, flags);
1343 ha->interrupts_on = 0;
1344 WRT_REG_DWORD(&reg->ictrl, 0);
1345 RD_REG_DWORD(&reg->ictrl);
1346 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1347 }
1348
1349 static struct isp_operations qla2100_isp_ops = {
1350 .pci_config = qla2100_pci_config,
1351 .reset_chip = qla2x00_reset_chip,
1352 .chip_diag = qla2x00_chip_diag,
1353 .config_rings = qla2x00_config_rings,
1354 .reset_adapter = qla2x00_reset_adapter,
1355 .nvram_config = qla2x00_nvram_config,
1356 .update_fw_options = qla2x00_update_fw_options,
1357 .load_risc = qla2x00_load_risc,
1358 .pci_info_str = qla2x00_pci_info_str,
1359 .fw_version_str = qla2x00_fw_version_str,
1360 .intr_handler = qla2100_intr_handler,
1361 .enable_intrs = qla2x00_enable_intrs,
1362 .disable_intrs = qla2x00_disable_intrs,
1363 .abort_command = qla2x00_abort_command,
1364 .target_reset = qla2x00_abort_target,
1365 .lun_reset = qla2x00_lun_reset,
1366 .fabric_login = qla2x00_login_fabric,
1367 .fabric_logout = qla2x00_fabric_logout,
1368 .calc_req_entries = qla2x00_calc_iocbs_32,
1369 .build_iocbs = qla2x00_build_scsi_iocbs_32,
1370 .prep_ms_iocb = qla2x00_prep_ms_iocb,
1371 .prep_ms_fdmi_iocb = qla2x00_prep_ms_fdmi_iocb,
1372 .read_nvram = qla2x00_read_nvram_data,
1373 .write_nvram = qla2x00_write_nvram_data,
1374 .fw_dump = qla2100_fw_dump,
1375 .beacon_on = NULL,
1376 .beacon_off = NULL,
1377 .beacon_blink = NULL,
1378 .read_optrom = qla2x00_read_optrom_data,
1379 .write_optrom = qla2x00_write_optrom_data,
1380 .get_flash_version = qla2x00_get_flash_version,
1381 .start_scsi = qla2x00_start_scsi,
1382 };
1383
1384 static struct isp_operations qla2300_isp_ops = {
1385 .pci_config = qla2300_pci_config,
1386 .reset_chip = qla2x00_reset_chip,
1387 .chip_diag = qla2x00_chip_diag,
1388 .config_rings = qla2x00_config_rings,
1389 .reset_adapter = qla2x00_reset_adapter,
1390 .nvram_config = qla2x00_nvram_config,
1391 .update_fw_options = qla2x00_update_fw_options,
1392 .load_risc = qla2x00_load_risc,
1393 .pci_info_str = qla2x00_pci_info_str,
1394 .fw_version_str = qla2x00_fw_version_str,
1395 .intr_handler = qla2300_intr_handler,
1396 .enable_intrs = qla2x00_enable_intrs,
1397 .disable_intrs = qla2x00_disable_intrs,
1398 .abort_command = qla2x00_abort_command,
1399 .target_reset = qla2x00_abort_target,
1400 .lun_reset = qla2x00_lun_reset,
1401 .fabric_login = qla2x00_login_fabric,
1402 .fabric_logout = qla2x00_fabric_logout,
1403 .calc_req_entries = qla2x00_calc_iocbs_32,
1404 .build_iocbs = qla2x00_build_scsi_iocbs_32,
1405 .prep_ms_iocb = qla2x00_prep_ms_iocb,
1406 .prep_ms_fdmi_iocb = qla2x00_prep_ms_fdmi_iocb,
1407 .read_nvram = qla2x00_read_nvram_data,
1408 .write_nvram = qla2x00_write_nvram_data,
1409 .fw_dump = qla2300_fw_dump,
1410 .beacon_on = qla2x00_beacon_on,
1411 .beacon_off = qla2x00_beacon_off,
1412 .beacon_blink = qla2x00_beacon_blink,
1413 .read_optrom = qla2x00_read_optrom_data,
1414 .write_optrom = qla2x00_write_optrom_data,
1415 .get_flash_version = qla2x00_get_flash_version,
1416 .start_scsi = qla2x00_start_scsi,
1417 };
1418
1419 static struct isp_operations qla24xx_isp_ops = {
1420 .pci_config = qla24xx_pci_config,
1421 .reset_chip = qla24xx_reset_chip,
1422 .chip_diag = qla24xx_chip_diag,
1423 .config_rings = qla24xx_config_rings,
1424 .reset_adapter = qla24xx_reset_adapter,
1425 .nvram_config = qla24xx_nvram_config,
1426 .update_fw_options = qla24xx_update_fw_options,
1427 .load_risc = qla24xx_load_risc,
1428 .pci_info_str = qla24xx_pci_info_str,
1429 .fw_version_str = qla24xx_fw_version_str,
1430 .intr_handler = qla24xx_intr_handler,
1431 .enable_intrs = qla24xx_enable_intrs,
1432 .disable_intrs = qla24xx_disable_intrs,
1433 .abort_command = qla24xx_abort_command,
1434 .target_reset = qla24xx_abort_target,
1435 .lun_reset = qla24xx_lun_reset,
1436 .fabric_login = qla24xx_login_fabric,
1437 .fabric_logout = qla24xx_fabric_logout,
1438 .calc_req_entries = NULL,
1439 .build_iocbs = NULL,
1440 .prep_ms_iocb = qla24xx_prep_ms_iocb,
1441 .prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb,
1442 .read_nvram = qla24xx_read_nvram_data,
1443 .write_nvram = qla24xx_write_nvram_data,
1444 .fw_dump = qla24xx_fw_dump,
1445 .beacon_on = qla24xx_beacon_on,
1446 .beacon_off = qla24xx_beacon_off,
1447 .beacon_blink = qla24xx_beacon_blink,
1448 .read_optrom = qla24xx_read_optrom_data,
1449 .write_optrom = qla24xx_write_optrom_data,
1450 .get_flash_version = qla24xx_get_flash_version,
1451 .start_scsi = qla24xx_start_scsi,
1452 };
1453
1454 static struct isp_operations qla25xx_isp_ops = {
1455 .pci_config = qla25xx_pci_config,
1456 .reset_chip = qla24xx_reset_chip,
1457 .chip_diag = qla24xx_chip_diag,
1458 .config_rings = qla24xx_config_rings,
1459 .reset_adapter = qla24xx_reset_adapter,
1460 .nvram_config = qla24xx_nvram_config,
1461 .update_fw_options = qla24xx_update_fw_options,
1462 .load_risc = qla24xx_load_risc,
1463 .pci_info_str = qla24xx_pci_info_str,
1464 .fw_version_str = qla24xx_fw_version_str,
1465 .intr_handler = qla24xx_intr_handler,
1466 .enable_intrs = qla24xx_enable_intrs,
1467 .disable_intrs = qla24xx_disable_intrs,
1468 .abort_command = qla24xx_abort_command,
1469 .target_reset = qla24xx_abort_target,
1470 .lun_reset = qla24xx_lun_reset,
1471 .fabric_login = qla24xx_login_fabric,
1472 .fabric_logout = qla24xx_fabric_logout,
1473 .calc_req_entries = NULL,
1474 .build_iocbs = NULL,
1475 .prep_ms_iocb = qla24xx_prep_ms_iocb,
1476 .prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb,
1477 .read_nvram = qla25xx_read_nvram_data,
1478 .write_nvram = qla25xx_write_nvram_data,
1479 .fw_dump = qla25xx_fw_dump,
1480 .beacon_on = qla24xx_beacon_on,
1481 .beacon_off = qla24xx_beacon_off,
1482 .beacon_blink = qla24xx_beacon_blink,
1483 .read_optrom = qla25xx_read_optrom_data,
1484 .write_optrom = qla24xx_write_optrom_data,
1485 .get_flash_version = qla24xx_get_flash_version,
1486 .start_scsi = qla24xx_start_scsi,
1487 };
1488
1489 static struct isp_operations qla81xx_isp_ops = {
1490 .pci_config = qla25xx_pci_config,
1491 .reset_chip = qla24xx_reset_chip,
1492 .chip_diag = qla24xx_chip_diag,
1493 .config_rings = qla24xx_config_rings,
1494 .reset_adapter = qla24xx_reset_adapter,
1495 .nvram_config = qla81xx_nvram_config,
1496 .update_fw_options = qla81xx_update_fw_options,
1497 .load_risc = qla81xx_load_risc,
1498 .pci_info_str = qla24xx_pci_info_str,
1499 .fw_version_str = qla24xx_fw_version_str,
1500 .intr_handler = qla24xx_intr_handler,
1501 .enable_intrs = qla24xx_enable_intrs,
1502 .disable_intrs = qla24xx_disable_intrs,
1503 .abort_command = qla24xx_abort_command,
1504 .target_reset = qla24xx_abort_target,
1505 .lun_reset = qla24xx_lun_reset,
1506 .fabric_login = qla24xx_login_fabric,
1507 .fabric_logout = qla24xx_fabric_logout,
1508 .calc_req_entries = NULL,
1509 .build_iocbs = NULL,
1510 .prep_ms_iocb = qla24xx_prep_ms_iocb,
1511 .prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb,
1512 .read_nvram = NULL,
1513 .write_nvram = NULL,
1514 .fw_dump = qla81xx_fw_dump,
1515 .beacon_on = qla24xx_beacon_on,
1516 .beacon_off = qla24xx_beacon_off,
1517 .beacon_blink = qla24xx_beacon_blink,
1518 .read_optrom = qla25xx_read_optrom_data,
1519 .write_optrom = qla24xx_write_optrom_data,
1520 .get_flash_version = qla24xx_get_flash_version,
1521 .start_scsi = qla24xx_start_scsi,
1522 };
1523
1524 static inline void
1525 qla2x00_set_isp_flags(struct qla_hw_data *ha)
1526 {
1527 ha->device_type = DT_EXTENDED_IDS;
1528 switch (ha->pdev->device) {
1529 case PCI_DEVICE_ID_QLOGIC_ISP2100:
1530 ha->device_type |= DT_ISP2100;
1531 ha->device_type &= ~DT_EXTENDED_IDS;
1532 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1533 break;
1534 case PCI_DEVICE_ID_QLOGIC_ISP2200:
1535 ha->device_type |= DT_ISP2200;
1536 ha->device_type &= ~DT_EXTENDED_IDS;
1537 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1538 break;
1539 case PCI_DEVICE_ID_QLOGIC_ISP2300:
1540 ha->device_type |= DT_ISP2300;
1541 ha->device_type |= DT_ZIO_SUPPORTED;
1542 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1543 break;
1544 case PCI_DEVICE_ID_QLOGIC_ISP2312:
1545 ha->device_type |= DT_ISP2312;
1546 ha->device_type |= DT_ZIO_SUPPORTED;
1547 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1548 break;
1549 case PCI_DEVICE_ID_QLOGIC_ISP2322:
1550 ha->device_type |= DT_ISP2322;
1551 ha->device_type |= DT_ZIO_SUPPORTED;
1552 if (ha->pdev->subsystem_vendor == 0x1028 &&
1553 ha->pdev->subsystem_device == 0x0170)
1554 ha->device_type |= DT_OEM_001;
1555 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1556 break;
1557 case PCI_DEVICE_ID_QLOGIC_ISP6312:
1558 ha->device_type |= DT_ISP6312;
1559 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1560 break;
1561 case PCI_DEVICE_ID_QLOGIC_ISP6322:
1562 ha->device_type |= DT_ISP6322;
1563 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1564 break;
1565 case PCI_DEVICE_ID_QLOGIC_ISP2422:
1566 ha->device_type |= DT_ISP2422;
1567 ha->device_type |= DT_ZIO_SUPPORTED;
1568 ha->device_type |= DT_FWI2;
1569 ha->device_type |= DT_IIDMA;
1570 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1571 break;
1572 case PCI_DEVICE_ID_QLOGIC_ISP2432:
1573 ha->device_type |= DT_ISP2432;
1574 ha->device_type |= DT_ZIO_SUPPORTED;
1575 ha->device_type |= DT_FWI2;
1576 ha->device_type |= DT_IIDMA;
1577 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1578 break;
1579 case PCI_DEVICE_ID_QLOGIC_ISP8432:
1580 ha->device_type |= DT_ISP8432;
1581 ha->device_type |= DT_ZIO_SUPPORTED;
1582 ha->device_type |= DT_FWI2;
1583 ha->device_type |= DT_IIDMA;
1584 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1585 break;
1586 case PCI_DEVICE_ID_QLOGIC_ISP5422:
1587 ha->device_type |= DT_ISP5422;
1588 ha->device_type |= DT_FWI2;
1589 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1590 break;
1591 case PCI_DEVICE_ID_QLOGIC_ISP5432:
1592 ha->device_type |= DT_ISP5432;
1593 ha->device_type |= DT_FWI2;
1594 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1595 break;
1596 case PCI_DEVICE_ID_QLOGIC_ISP2532:
1597 ha->device_type |= DT_ISP2532;
1598 ha->device_type |= DT_ZIO_SUPPORTED;
1599 ha->device_type |= DT_FWI2;
1600 ha->device_type |= DT_IIDMA;
1601 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1602 break;
1603 case PCI_DEVICE_ID_QLOGIC_ISP8001:
1604 ha->device_type |= DT_ISP8001;
1605 ha->device_type |= DT_ZIO_SUPPORTED;
1606 ha->device_type |= DT_FWI2;
1607 ha->device_type |= DT_IIDMA;
1608 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1609 break;
1610 }
1611
1612 /* Get adapter physical port no from interrupt pin register. */
1613 pci_read_config_byte(ha->pdev, PCI_INTERRUPT_PIN, &ha->port_no);
1614 if (ha->port_no & 1)
1615 ha->flags.port0 = 1;
1616 else
1617 ha->flags.port0 = 0;
1618 }
1619
1620 static int
1621 qla2x00_iospace_config(struct qla_hw_data *ha)
1622 {
1623 resource_size_t pio;
1624 uint16_t msix;
1625 int cpus;
1626
1627 if (pci_request_selected_regions(ha->pdev, ha->bars,
1628 QLA2XXX_DRIVER_NAME)) {
1629 qla_printk(KERN_WARNING, ha,
1630 "Failed to reserve PIO/MMIO regions (%s)\n",
1631 pci_name(ha->pdev));
1632
1633 goto iospace_error_exit;
1634 }
1635 if (!(ha->bars & 1))
1636 goto skip_pio;
1637
1638 /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1639 pio = pci_resource_start(ha->pdev, 0);
1640 if (pci_resource_flags(ha->pdev, 0) & IORESOURCE_IO) {
1641 if (pci_resource_len(ha->pdev, 0) < MIN_IOBASE_LEN) {
1642 qla_printk(KERN_WARNING, ha,
1643 "Invalid PCI I/O region size (%s)...\n",
1644 pci_name(ha->pdev));
1645 pio = 0;
1646 }
1647 } else {
1648 qla_printk(KERN_WARNING, ha,
1649 "region #0 not a PIO resource (%s)...\n",
1650 pci_name(ha->pdev));
1651 pio = 0;
1652 }
1653 ha->pio_address = pio;
1654
1655 skip_pio:
1656 /* Use MMIO operations for all accesses. */
1657 if (!(pci_resource_flags(ha->pdev, 1) & IORESOURCE_MEM)) {
1658 qla_printk(KERN_ERR, ha,
1659 "region #1 not an MMIO resource (%s), aborting\n",
1660 pci_name(ha->pdev));
1661 goto iospace_error_exit;
1662 }
1663 if (pci_resource_len(ha->pdev, 1) < MIN_IOBASE_LEN) {
1664 qla_printk(KERN_ERR, ha,
1665 "Invalid PCI mem region size (%s), aborting\n",
1666 pci_name(ha->pdev));
1667 goto iospace_error_exit;
1668 }
1669
1670 ha->iobase = ioremap(pci_resource_start(ha->pdev, 1), MIN_IOBASE_LEN);
1671 if (!ha->iobase) {
1672 qla_printk(KERN_ERR, ha,
1673 "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
1674
1675 goto iospace_error_exit;
1676 }
1677
1678 /* Determine queue resources */
1679 ha->max_req_queues = ha->max_rsp_queues = 1;
1680 if ((ql2xmaxqueues <= 1 || ql2xmultique_tag < 1) &&
1681 (!IS_QLA25XX(ha) && !IS_QLA81XX(ha)))
1682 goto mqiobase_exit;
1683 ha->mqiobase = ioremap(pci_resource_start(ha->pdev, 3),
1684 pci_resource_len(ha->pdev, 3));
1685 if (ha->mqiobase) {
1686 /* Read MSIX vector size of the board */
1687 pci_read_config_word(ha->pdev, QLA_PCI_MSIX_CONTROL, &msix);
1688 ha->msix_count = msix;
1689 /* Max queues are bounded by available msix vectors */
1690 /* queue 0 uses two msix vectors */
1691 if (ql2xmultique_tag) {
1692 cpus = num_online_cpus();
1693 ha->max_rsp_queues = (ha->msix_count - 1 > cpus) ?
1694 (cpus + 1) : (ha->msix_count - 1);
1695 ha->max_req_queues = 2;
1696 } else if (ql2xmaxqueues > 1) {
1697 ha->max_req_queues = ql2xmaxqueues > QLA_MQ_SIZE ?
1698 QLA_MQ_SIZE : ql2xmaxqueues;
1699 DEBUG2(qla_printk(KERN_INFO, ha, "QoS mode set, max no"
1700 " of request queues:%d\n", ha->max_req_queues));
1701 }
1702 qla_printk(KERN_INFO, ha,
1703 "MSI-X vector count: %d\n", msix);
1704 } else
1705 qla_printk(KERN_INFO, ha, "BAR 3 not enabled\n");
1706
1707 mqiobase_exit:
1708 ha->msix_count = ha->max_rsp_queues + 1;
1709 return (0);
1710
1711 iospace_error_exit:
1712 return (-ENOMEM);
1713 }
1714
1715 static void
1716 qla2xxx_scan_start(struct Scsi_Host *shost)
1717 {
1718 scsi_qla_host_t *vha = shost_priv(shost);
1719
1720 if (vha->hw->flags.running_gold_fw)
1721 return;
1722
1723 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1724 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1725 set_bit(RSCN_UPDATE, &vha->dpc_flags);
1726 set_bit(NPIV_CONFIG_NEEDED, &vha->dpc_flags);
1727 }
1728
1729 static int
1730 qla2xxx_scan_finished(struct Scsi_Host *shost, unsigned long time)
1731 {
1732 scsi_qla_host_t *vha = shost_priv(shost);
1733
1734 if (!vha->host)
1735 return 1;
1736 if (time > vha->hw->loop_reset_delay * HZ)
1737 return 1;
1738
1739 return atomic_read(&vha->loop_state) == LOOP_READY;
1740 }
1741
1742 /*
1743 * PCI driver interface
1744 */
1745 static int __devinit
1746 qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
1747 {
1748 int ret = -ENODEV;
1749 struct Scsi_Host *host;
1750 scsi_qla_host_t *base_vha = NULL;
1751 struct qla_hw_data *ha;
1752 char pci_info[30];
1753 char fw_str[30];
1754 struct scsi_host_template *sht;
1755 int bars, max_id, mem_only = 0;
1756 uint16_t req_length = 0, rsp_length = 0;
1757 struct req_que *req = NULL;
1758 struct rsp_que *rsp = NULL;
1759
1760 bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO);
1761 sht = &qla2xxx_driver_template;
1762 if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
1763 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432 ||
1764 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8432 ||
1765 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5422 ||
1766 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5432 ||
1767 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2532 ||
1768 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8001) {
1769 bars = pci_select_bars(pdev, IORESOURCE_MEM);
1770 mem_only = 1;
1771 }
1772
1773 if (mem_only) {
1774 if (pci_enable_device_mem(pdev))
1775 goto probe_out;
1776 } else {
1777 if (pci_enable_device(pdev))
1778 goto probe_out;
1779 }
1780
1781 /* This may fail but that's ok */
1782 pci_enable_pcie_error_reporting(pdev);
1783
1784 ha = kzalloc(sizeof(struct qla_hw_data), GFP_KERNEL);
1785 if (!ha) {
1786 DEBUG(printk("Unable to allocate memory for ha\n"));
1787 goto probe_out;
1788 }
1789 ha->pdev = pdev;
1790
1791 /* Clear our data area */
1792 ha->bars = bars;
1793 ha->mem_only = mem_only;
1794 spin_lock_init(&ha->hardware_lock);
1795
1796 /* Set ISP-type information. */
1797 qla2x00_set_isp_flags(ha);
1798
1799 /* Set EEH reset type to fundamental if required by hba */
1800 if ( IS_QLA24XX(ha) || IS_QLA25XX(ha) || IS_QLA81XX(ha)) {
1801 pdev->needs_freset = 1;
1802 }
1803
1804 /* Configure PCI I/O space */
1805 ret = qla2x00_iospace_config(ha);
1806 if (ret)
1807 goto probe_hw_failed;
1808
1809 qla_printk(KERN_INFO, ha,
1810 "Found an ISP%04X, irq %d, iobase 0x%p\n", pdev->device, pdev->irq,
1811 ha->iobase);
1812
1813 ha->prev_topology = 0;
1814 ha->init_cb_size = sizeof(init_cb_t);
1815 ha->link_data_rate = PORT_SPEED_UNKNOWN;
1816 ha->optrom_size = OPTROM_SIZE_2300;
1817
1818 /* Assign ISP specific operations. */
1819 max_id = MAX_TARGETS_2200;
1820 if (IS_QLA2100(ha)) {
1821 max_id = MAX_TARGETS_2100;
1822 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
1823 req_length = REQUEST_ENTRY_CNT_2100;
1824 rsp_length = RESPONSE_ENTRY_CNT_2100;
1825 ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
1826 ha->gid_list_info_size = 4;
1827 ha->flash_conf_off = ~0;
1828 ha->flash_data_off = ~0;
1829 ha->nvram_conf_off = ~0;
1830 ha->nvram_data_off = ~0;
1831 ha->isp_ops = &qla2100_isp_ops;
1832 } else if (IS_QLA2200(ha)) {
1833 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1834 req_length = REQUEST_ENTRY_CNT_2200;
1835 rsp_length = RESPONSE_ENTRY_CNT_2100;
1836 ha->max_loop_id = SNS_LAST_LOOP_ID_2100;
1837 ha->gid_list_info_size = 4;
1838 ha->flash_conf_off = ~0;
1839 ha->flash_data_off = ~0;
1840 ha->nvram_conf_off = ~0;
1841 ha->nvram_data_off = ~0;
1842 ha->isp_ops = &qla2100_isp_ops;
1843 } else if (IS_QLA23XX(ha)) {
1844 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1845 req_length = REQUEST_ENTRY_CNT_2200;
1846 rsp_length = RESPONSE_ENTRY_CNT_2300;
1847 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
1848 ha->gid_list_info_size = 6;
1849 if (IS_QLA2322(ha) || IS_QLA6322(ha))
1850 ha->optrom_size = OPTROM_SIZE_2322;
1851 ha->flash_conf_off = ~0;
1852 ha->flash_data_off = ~0;
1853 ha->nvram_conf_off = ~0;
1854 ha->nvram_data_off = ~0;
1855 ha->isp_ops = &qla2300_isp_ops;
1856 } else if (IS_QLA24XX_TYPE(ha)) {
1857 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1858 req_length = REQUEST_ENTRY_CNT_24XX;
1859 rsp_length = RESPONSE_ENTRY_CNT_2300;
1860 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
1861 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
1862 ha->gid_list_info_size = 8;
1863 ha->optrom_size = OPTROM_SIZE_24XX;
1864 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA24XX;
1865 ha->isp_ops = &qla24xx_isp_ops;
1866 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
1867 ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
1868 ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
1869 ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
1870 } else if (IS_QLA25XX(ha)) {
1871 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1872 req_length = REQUEST_ENTRY_CNT_24XX;
1873 rsp_length = RESPONSE_ENTRY_CNT_2300;
1874 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
1875 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
1876 ha->gid_list_info_size = 8;
1877 ha->optrom_size = OPTROM_SIZE_25XX;
1878 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
1879 ha->isp_ops = &qla25xx_isp_ops;
1880 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF;
1881 ha->flash_data_off = FARX_ACCESS_FLASH_DATA;
1882 ha->nvram_conf_off = FARX_ACCESS_NVRAM_CONF;
1883 ha->nvram_data_off = FARX_ACCESS_NVRAM_DATA;
1884 } else if (IS_QLA81XX(ha)) {
1885 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1886 req_length = REQUEST_ENTRY_CNT_24XX;
1887 rsp_length = RESPONSE_ENTRY_CNT_2300;
1888 ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
1889 ha->init_cb_size = sizeof(struct mid_init_cb_81xx);
1890 ha->gid_list_info_size = 8;
1891 ha->optrom_size = OPTROM_SIZE_81XX;
1892 ha->nvram_npiv_size = QLA_MAX_VPORTS_QLA25XX;
1893 ha->isp_ops = &qla81xx_isp_ops;
1894 ha->flash_conf_off = FARX_ACCESS_FLASH_CONF_81XX;
1895 ha->flash_data_off = FARX_ACCESS_FLASH_DATA_81XX;
1896 ha->nvram_conf_off = ~0;
1897 ha->nvram_data_off = ~0;
1898 }
1899
1900 mutex_init(&ha->vport_lock);
1901 init_completion(&ha->mbx_cmd_comp);
1902 complete(&ha->mbx_cmd_comp);
1903 init_completion(&ha->mbx_intr_comp);
1904
1905 set_bit(0, (unsigned long *) ha->vp_idx_map);
1906
1907 qla2x00_config_dma_addressing(ha);
1908 ret = qla2x00_mem_alloc(ha, req_length, rsp_length, &req, &rsp);
1909 if (!ret) {
1910 qla_printk(KERN_WARNING, ha,
1911 "[ERROR] Failed to allocate memory for adapter\n");
1912
1913 goto probe_hw_failed;
1914 }
1915
1916 req->max_q_depth = MAX_Q_DEPTH;
1917 if (ql2xmaxqdepth != 0 && ql2xmaxqdepth <= 0xffffU)
1918 req->max_q_depth = ql2xmaxqdepth;
1919
1920
1921 base_vha = qla2x00_create_host(sht, ha);
1922 if (!base_vha) {
1923 qla_printk(KERN_WARNING, ha,
1924 "[ERROR] Failed to allocate memory for scsi_host\n");
1925
1926 ret = -ENOMEM;
1927 qla2x00_mem_free(ha);
1928 qla2x00_free_req_que(ha, req);
1929 qla2x00_free_rsp_que(ha, rsp);
1930 goto probe_hw_failed;
1931 }
1932
1933 pci_set_drvdata(pdev, base_vha);
1934
1935 host = base_vha->host;
1936 base_vha->req = req;
1937 host->can_queue = req->length + 128;
1938 if (IS_QLA2XXX_MIDTYPE(ha))
1939 base_vha->mgmt_svr_loop_id = 10 + base_vha->vp_idx;
1940 else
1941 base_vha->mgmt_svr_loop_id = MANAGEMENT_SERVER +
1942 base_vha->vp_idx;
1943 if (IS_QLA2100(ha))
1944 host->sg_tablesize = 32;
1945 host->max_id = max_id;
1946 host->this_id = 255;
1947 host->cmd_per_lun = 3;
1948 host->unique_id = host->host_no;
1949 host->max_cmd_len = MAX_CMDSZ;
1950 host->max_channel = MAX_BUSES - 1;
1951 host->max_lun = MAX_LUNS;
1952 host->transportt = qla2xxx_transport_template;
1953 sht->vendor_id = (SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_QLOGIC);
1954
1955 /* Set up the irqs */
1956 ret = qla2x00_request_irqs(ha, rsp);
1957 if (ret)
1958 goto probe_init_failed;
1959
1960 pci_save_state(pdev);
1961
1962 /* Alloc arrays of request and response ring ptrs */
1963 que_init:
1964 if (!qla2x00_alloc_queues(ha)) {
1965 qla_printk(KERN_WARNING, ha,
1966 "[ERROR] Failed to allocate memory for queue"
1967 " pointers\n");
1968 goto probe_init_failed;
1969 }
1970 ha->rsp_q_map[0] = rsp;
1971 ha->req_q_map[0] = req;
1972 rsp->req = req;
1973 req->rsp = rsp;
1974 set_bit(0, ha->req_qid_map);
1975 set_bit(0, ha->rsp_qid_map);
1976 /* FWI2-capable only. */
1977 req->req_q_in = &ha->iobase->isp24.req_q_in;
1978 req->req_q_out = &ha->iobase->isp24.req_q_out;
1979 rsp->rsp_q_in = &ha->iobase->isp24.rsp_q_in;
1980 rsp->rsp_q_out = &ha->iobase->isp24.rsp_q_out;
1981 if (ha->mqenable) {
1982 req->req_q_in = &ha->mqiobase->isp25mq.req_q_in;
1983 req->req_q_out = &ha->mqiobase->isp25mq.req_q_out;
1984 rsp->rsp_q_in = &ha->mqiobase->isp25mq.rsp_q_in;
1985 rsp->rsp_q_out = &ha->mqiobase->isp25mq.rsp_q_out;
1986 }
1987
1988 if (qla2x00_initialize_adapter(base_vha)) {
1989 qla_printk(KERN_WARNING, ha,
1990 "Failed to initialize adapter\n");
1991
1992 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
1993 "Adapter flags %x.\n",
1994 base_vha->host_no, base_vha->device_flags));
1995
1996 ret = -ENODEV;
1997 goto probe_failed;
1998 }
1999
2000 if (ha->mqenable) {
2001 if (qla25xx_setup_mode(base_vha)) {
2002 qla_printk(KERN_WARNING, ha,
2003 "Can't create queues, falling back to single"
2004 " queue mode\n");
2005 goto que_init;
2006 }
2007 }
2008
2009 if (ha->flags.running_gold_fw)
2010 goto skip_dpc;
2011
2012 /*
2013 * Startup the kernel thread for this host adapter
2014 */
2015 ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
2016 "%s_dpc", base_vha->host_str);
2017 if (IS_ERR(ha->dpc_thread)) {
2018 qla_printk(KERN_WARNING, ha,
2019 "Unable to start DPC thread!\n");
2020 ret = PTR_ERR(ha->dpc_thread);
2021 goto probe_failed;
2022 }
2023
2024 skip_dpc:
2025 list_add_tail(&base_vha->list, &ha->vp_list);
2026 base_vha->host->irq = ha->pdev->irq;
2027
2028 /* Initialized the timer */
2029 qla2x00_start_timer(base_vha, qla2x00_timer, WATCH_INTERVAL);
2030
2031 DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
2032 base_vha->host_no, ha));
2033
2034 ret = scsi_add_host(host, &pdev->dev);
2035 if (ret)
2036 goto probe_failed;
2037
2038 base_vha->flags.init_done = 1;
2039 base_vha->flags.online = 1;
2040
2041 ha->isp_ops->enable_intrs(ha);
2042
2043 scsi_scan_host(host);
2044
2045 qla2x00_alloc_sysfs_attr(base_vha);
2046
2047 qla2x00_init_host_attr(base_vha);
2048
2049 qla2x00_dfs_setup(base_vha);
2050
2051 qla_printk(KERN_INFO, ha, "\n"
2052 " QLogic Fibre Channel HBA Driver: %s\n"
2053 " QLogic %s - %s\n"
2054 " ISP%04X: %s @ %s hdma%c, host#=%ld, fw=%s\n",
2055 qla2x00_version_str, ha->model_number,
2056 ha->model_desc ? ha->model_desc : "", pdev->device,
2057 ha->isp_ops->pci_info_str(base_vha, pci_info), pci_name(pdev),
2058 ha->flags.enable_64bit_addressing ? '+' : '-', base_vha->host_no,
2059 ha->isp_ops->fw_version_str(base_vha, fw_str));
2060
2061 return 0;
2062
2063 probe_init_failed:
2064 qla2x00_free_req_que(ha, req);
2065 qla2x00_free_rsp_que(ha, rsp);
2066 ha->max_req_queues = ha->max_rsp_queues = 0;
2067
2068 probe_failed:
2069 if (base_vha->timer_active)
2070 qla2x00_stop_timer(base_vha);
2071 base_vha->flags.online = 0;
2072 if (ha->dpc_thread) {
2073 struct task_struct *t = ha->dpc_thread;
2074
2075 ha->dpc_thread = NULL;
2076 kthread_stop(t);
2077 }
2078
2079 qla2x00_free_device(base_vha);
2080
2081 scsi_host_put(base_vha->host);
2082
2083 probe_hw_failed:
2084 if (ha->iobase)
2085 iounmap(ha->iobase);
2086
2087 pci_release_selected_regions(ha->pdev, ha->bars);
2088 kfree(ha);
2089 ha = NULL;
2090
2091 probe_out:
2092 pci_disable_device(pdev);
2093 return ret;
2094 }
2095
2096 static void
2097 qla2x00_remove_one(struct pci_dev *pdev)
2098 {
2099 scsi_qla_host_t *base_vha, *vha, *temp;
2100 struct qla_hw_data *ha;
2101
2102 base_vha = pci_get_drvdata(pdev);
2103 ha = base_vha->hw;
2104
2105 list_for_each_entry_safe(vha, temp, &ha->vp_list, list) {
2106 if (vha && vha->fc_vport)
2107 fc_vport_terminate(vha->fc_vport);
2108 }
2109
2110 set_bit(UNLOADING, &base_vha->dpc_flags);
2111
2112 qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
2113
2114 qla2x00_dfs_remove(base_vha);
2115
2116 qla84xx_put_chip(base_vha);
2117
2118 /* Disable timer */
2119 if (base_vha->timer_active)
2120 qla2x00_stop_timer(base_vha);
2121
2122 base_vha->flags.online = 0;
2123
2124 /* Flush the work queue and remove it */
2125 if (ha->wq) {
2126 flush_workqueue(ha->wq);
2127 destroy_workqueue(ha->wq);
2128 ha->wq = NULL;
2129 }
2130
2131 /* Kill the kernel thread for this host */
2132 if (ha->dpc_thread) {
2133 struct task_struct *t = ha->dpc_thread;
2134
2135 /*
2136 * qla2xxx_wake_dpc checks for ->dpc_thread
2137 * so we need to zero it out.
2138 */
2139 ha->dpc_thread = NULL;
2140 kthread_stop(t);
2141 }
2142
2143 qla2x00_free_sysfs_attr(base_vha);
2144
2145 fc_remove_host(base_vha->host);
2146
2147 scsi_remove_host(base_vha->host);
2148
2149 qla2x00_free_device(base_vha);
2150
2151 scsi_host_put(base_vha->host);
2152
2153 if (ha->iobase)
2154 iounmap(ha->iobase);
2155
2156 if (ha->mqiobase)
2157 iounmap(ha->mqiobase);
2158
2159 pci_release_selected_regions(ha->pdev, ha->bars);
2160 kfree(ha);
2161 ha = NULL;
2162
2163 pci_disable_pcie_error_reporting(pdev);
2164
2165 pci_disable_device(pdev);
2166 pci_set_drvdata(pdev, NULL);
2167 }
2168
2169 static void
2170 qla2x00_free_device(scsi_qla_host_t *vha)
2171 {
2172 struct qla_hw_data *ha = vha->hw;
2173
2174 qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
2175
2176 /* Disable timer */
2177 if (vha->timer_active)
2178 qla2x00_stop_timer(vha);
2179
2180 /* Kill the kernel thread for this host */
2181 if (ha->dpc_thread) {
2182 struct task_struct *t = ha->dpc_thread;
2183
2184 /*
2185 * qla2xxx_wake_dpc checks for ->dpc_thread
2186 * so we need to zero it out.
2187 */
2188 ha->dpc_thread = NULL;
2189 kthread_stop(t);
2190 }
2191
2192 qla25xx_delete_queues(vha);
2193
2194 if (ha->flags.fce_enabled)
2195 qla2x00_disable_fce_trace(vha, NULL, NULL);
2196
2197 if (ha->eft)
2198 qla2x00_disable_eft_trace(vha);
2199
2200 /* Stop currently executing firmware. */
2201 qla2x00_try_to_stop_firmware(vha);
2202
2203 vha->flags.online = 0;
2204
2205 /* turn-off interrupts on the card */
2206 if (ha->interrupts_on)
2207 ha->isp_ops->disable_intrs(ha);
2208
2209 qla2x00_free_irqs(vha);
2210
2211 qla2x00_mem_free(ha);
2212
2213 qla2x00_free_queues(ha);
2214 }
2215
2216 static inline void
2217 qla2x00_schedule_rport_del(struct scsi_qla_host *vha, fc_port_t *fcport,
2218 int defer)
2219 {
2220 struct fc_rport *rport;
2221 scsi_qla_host_t *base_vha;
2222
2223 if (!fcport->rport)
2224 return;
2225
2226 rport = fcport->rport;
2227 if (defer) {
2228 base_vha = pci_get_drvdata(vha->hw->pdev);
2229 spin_lock_irq(vha->host->host_lock);
2230 fcport->drport = rport;
2231 spin_unlock_irq(vha->host->host_lock);
2232 set_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags);
2233 qla2xxx_wake_dpc(base_vha);
2234 } else
2235 fc_remote_port_delete(rport);
2236 }
2237
2238 /*
2239 * qla2x00_mark_device_lost Updates fcport state when device goes offline.
2240 *
2241 * Input: ha = adapter block pointer. fcport = port structure pointer.
2242 *
2243 * Return: None.
2244 *
2245 * Context:
2246 */
2247 void qla2x00_mark_device_lost(scsi_qla_host_t *vha, fc_port_t *fcport,
2248 int do_login, int defer)
2249 {
2250 if (atomic_read(&fcport->state) == FCS_ONLINE &&
2251 vha->vp_idx == fcport->vp_idx) {
2252 atomic_set(&fcport->state, FCS_DEVICE_LOST);
2253 qla2x00_schedule_rport_del(vha, fcport, defer);
2254 }
2255 /*
2256 * We may need to retry the login, so don't change the state of the
2257 * port but do the retries.
2258 */
2259 if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
2260 atomic_set(&fcport->state, FCS_DEVICE_LOST);
2261
2262 if (!do_login)
2263 return;
2264
2265 if (fcport->login_retry == 0) {
2266 fcport->login_retry = vha->hw->login_retry_count;
2267 set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
2268
2269 DEBUG(printk("scsi(%ld): Port login retry: "
2270 "%02x%02x%02x%02x%02x%02x%02x%02x, "
2271 "id = 0x%04x retry cnt=%d\n",
2272 vha->host_no,
2273 fcport->port_name[0],
2274 fcport->port_name[1],
2275 fcport->port_name[2],
2276 fcport->port_name[3],
2277 fcport->port_name[4],
2278 fcport->port_name[5],
2279 fcport->port_name[6],
2280 fcport->port_name[7],
2281 fcport->loop_id,
2282 fcport->login_retry));
2283 }
2284 }
2285
2286 /*
2287 * qla2x00_mark_all_devices_lost
2288 * Updates fcport state when device goes offline.
2289 *
2290 * Input:
2291 * ha = adapter block pointer.
2292 * fcport = port structure pointer.
2293 *
2294 * Return:
2295 * None.
2296 *
2297 * Context:
2298 */
2299 void
2300 qla2x00_mark_all_devices_lost(scsi_qla_host_t *vha, int defer)
2301 {
2302 fc_port_t *fcport;
2303
2304 list_for_each_entry(fcport, &vha->vp_fcports, list) {
2305 if (vha->vp_idx != 0 && vha->vp_idx != fcport->vp_idx)
2306 continue;
2307
2308 /*
2309 * No point in marking the device as lost, if the device is
2310 * already DEAD.
2311 */
2312 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
2313 continue;
2314 if (atomic_read(&fcport->state) == FCS_ONLINE) {
2315 if (defer)
2316 qla2x00_schedule_rport_del(vha, fcport, defer);
2317 else if (vha->vp_idx == fcport->vp_idx)
2318 qla2x00_schedule_rport_del(vha, fcport, defer);
2319 }
2320 atomic_set(&fcport->state, FCS_DEVICE_LOST);
2321 }
2322 }
2323
2324 /*
2325 * qla2x00_mem_alloc
2326 * Allocates adapter memory.
2327 *
2328 * Returns:
2329 * 0 = success.
2330 * !0 = failure.
2331 */
2332 static int
2333 qla2x00_mem_alloc(struct qla_hw_data *ha, uint16_t req_len, uint16_t rsp_len,
2334 struct req_que **req, struct rsp_que **rsp)
2335 {
2336 char name[16];
2337
2338 ha->init_cb = dma_alloc_coherent(&ha->pdev->dev, ha->init_cb_size,
2339 &ha->init_cb_dma, GFP_KERNEL);
2340 if (!ha->init_cb)
2341 goto fail;
2342
2343 ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
2344 &ha->gid_list_dma, GFP_KERNEL);
2345 if (!ha->gid_list)
2346 goto fail_free_init_cb;
2347
2348 ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
2349 if (!ha->srb_mempool)
2350 goto fail_free_gid_list;
2351
2352 /* Get memory for cached NVRAM */
2353 ha->nvram = kzalloc(MAX_NVRAM_SIZE, GFP_KERNEL);
2354 if (!ha->nvram)
2355 goto fail_free_srb_mempool;
2356
2357 snprintf(name, sizeof(name), "%s_%d", QLA2XXX_DRIVER_NAME,
2358 ha->pdev->device);
2359 ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
2360 DMA_POOL_SIZE, 8, 0);
2361 if (!ha->s_dma_pool)
2362 goto fail_free_nvram;
2363
2364 /* Allocate memory for SNS commands */
2365 if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
2366 /* Get consistent memory allocated for SNS commands */
2367 ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
2368 sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma, GFP_KERNEL);
2369 if (!ha->sns_cmd)
2370 goto fail_dma_pool;
2371 } else {
2372 /* Get consistent memory allocated for MS IOCB */
2373 ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2374 &ha->ms_iocb_dma);
2375 if (!ha->ms_iocb)
2376 goto fail_dma_pool;
2377 /* Get consistent memory allocated for CT SNS commands */
2378 ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
2379 sizeof(struct ct_sns_pkt), &ha->ct_sns_dma, GFP_KERNEL);
2380 if (!ha->ct_sns)
2381 goto fail_free_ms_iocb;
2382 }
2383
2384 /* Allocate memory for request ring */
2385 *req = kzalloc(sizeof(struct req_que), GFP_KERNEL);
2386 if (!*req) {
2387 DEBUG(printk("Unable to allocate memory for req\n"));
2388 goto fail_req;
2389 }
2390 (*req)->length = req_len;
2391 (*req)->ring = dma_alloc_coherent(&ha->pdev->dev,
2392 ((*req)->length + 1) * sizeof(request_t),
2393 &(*req)->dma, GFP_KERNEL);
2394 if (!(*req)->ring) {
2395 DEBUG(printk("Unable to allocate memory for req_ring\n"));
2396 goto fail_req_ring;
2397 }
2398 /* Allocate memory for response ring */
2399 *rsp = kzalloc(sizeof(struct rsp_que), GFP_KERNEL);
2400 if (!*rsp) {
2401 qla_printk(KERN_WARNING, ha,
2402 "Unable to allocate memory for rsp\n");
2403 goto fail_rsp;
2404 }
2405 (*rsp)->hw = ha;
2406 (*rsp)->length = rsp_len;
2407 (*rsp)->ring = dma_alloc_coherent(&ha->pdev->dev,
2408 ((*rsp)->length + 1) * sizeof(response_t),
2409 &(*rsp)->dma, GFP_KERNEL);
2410 if (!(*rsp)->ring) {
2411 qla_printk(KERN_WARNING, ha,
2412 "Unable to allocate memory for rsp_ring\n");
2413 goto fail_rsp_ring;
2414 }
2415 (*req)->rsp = *rsp;
2416 (*rsp)->req = *req;
2417 /* Allocate memory for NVRAM data for vports */
2418 if (ha->nvram_npiv_size) {
2419 ha->npiv_info = kzalloc(sizeof(struct qla_npiv_entry) *
2420 ha->nvram_npiv_size, GFP_KERNEL);
2421 if (!ha->npiv_info) {
2422 qla_printk(KERN_WARNING, ha,
2423 "Unable to allocate memory for npiv info\n");
2424 goto fail_npiv_info;
2425 }
2426 } else
2427 ha->npiv_info = NULL;
2428
2429 /* Get consistent memory allocated for EX-INIT-CB. */
2430 if (IS_QLA81XX(ha)) {
2431 ha->ex_init_cb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2432 &ha->ex_init_cb_dma);
2433 if (!ha->ex_init_cb)
2434 goto fail_ex_init_cb;
2435 }
2436
2437 INIT_LIST_HEAD(&ha->vp_list);
2438 return 1;
2439
2440 fail_ex_init_cb:
2441 kfree(ha->npiv_info);
2442 fail_npiv_info:
2443 dma_free_coherent(&ha->pdev->dev, ((*rsp)->length + 1) *
2444 sizeof(response_t), (*rsp)->ring, (*rsp)->dma);
2445 (*rsp)->ring = NULL;
2446 (*rsp)->dma = 0;
2447 fail_rsp_ring:
2448 kfree(*rsp);
2449 fail_rsp:
2450 dma_free_coherent(&ha->pdev->dev, ((*req)->length + 1) *
2451 sizeof(request_t), (*req)->ring, (*req)->dma);
2452 (*req)->ring = NULL;
2453 (*req)->dma = 0;
2454 fail_req_ring:
2455 kfree(*req);
2456 fail_req:
2457 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2458 ha->ct_sns, ha->ct_sns_dma);
2459 ha->ct_sns = NULL;
2460 ha->ct_sns_dma = 0;
2461 fail_free_ms_iocb:
2462 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2463 ha->ms_iocb = NULL;
2464 ha->ms_iocb_dma = 0;
2465 fail_dma_pool:
2466 dma_pool_destroy(ha->s_dma_pool);
2467 ha->s_dma_pool = NULL;
2468 fail_free_nvram:
2469 kfree(ha->nvram);
2470 ha->nvram = NULL;
2471 fail_free_srb_mempool:
2472 mempool_destroy(ha->srb_mempool);
2473 ha->srb_mempool = NULL;
2474 fail_free_gid_list:
2475 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2476 ha->gid_list_dma);
2477 ha->gid_list = NULL;
2478 ha->gid_list_dma = 0;
2479 fail_free_init_cb:
2480 dma_free_coherent(&ha->pdev->dev, ha->init_cb_size, ha->init_cb,
2481 ha->init_cb_dma);
2482 ha->init_cb = NULL;
2483 ha->init_cb_dma = 0;
2484 fail:
2485 DEBUG(printk("%s: Memory allocation failure\n", __func__));
2486 return -ENOMEM;
2487 }
2488
2489 /*
2490 * qla2x00_mem_free
2491 * Frees all adapter allocated memory.
2492 *
2493 * Input:
2494 * ha = adapter block pointer.
2495 */
2496 static void
2497 qla2x00_mem_free(struct qla_hw_data *ha)
2498 {
2499 if (ha->srb_mempool)
2500 mempool_destroy(ha->srb_mempool);
2501
2502 if (ha->fce)
2503 dma_free_coherent(&ha->pdev->dev, FCE_SIZE, ha->fce,
2504 ha->fce_dma);
2505
2506 if (ha->fw_dump) {
2507 if (ha->eft)
2508 dma_free_coherent(&ha->pdev->dev,
2509 ntohl(ha->fw_dump->eft_size), ha->eft, ha->eft_dma);
2510 vfree(ha->fw_dump);
2511 }
2512
2513 if (ha->dcbx_tlv)
2514 dma_free_coherent(&ha->pdev->dev, DCBX_TLV_DATA_SIZE,
2515 ha->dcbx_tlv, ha->dcbx_tlv_dma);
2516
2517 if (ha->xgmac_data)
2518 dma_free_coherent(&ha->pdev->dev, XGMAC_DATA_SIZE,
2519 ha->xgmac_data, ha->xgmac_data_dma);
2520
2521 if (ha->sns_cmd)
2522 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
2523 ha->sns_cmd, ha->sns_cmd_dma);
2524
2525 if (ha->ct_sns)
2526 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2527 ha->ct_sns, ha->ct_sns_dma);
2528
2529 if (ha->sfp_data)
2530 dma_pool_free(ha->s_dma_pool, ha->sfp_data, ha->sfp_data_dma);
2531
2532 if (ha->edc_data)
2533 dma_pool_free(ha->s_dma_pool, ha->edc_data, ha->edc_data_dma);
2534
2535 if (ha->ms_iocb)
2536 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2537
2538 if (ha->ex_init_cb)
2539 dma_pool_free(ha->s_dma_pool, ha->ex_init_cb, ha->ex_init_cb_dma);
2540
2541 if (ha->s_dma_pool)
2542 dma_pool_destroy(ha->s_dma_pool);
2543
2544 if (ha->gid_list)
2545 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2546 ha->gid_list_dma);
2547
2548 if (ha->init_cb)
2549 dma_free_coherent(&ha->pdev->dev, ha->init_cb_size,
2550 ha->init_cb, ha->init_cb_dma);
2551 vfree(ha->optrom_buffer);
2552 kfree(ha->nvram);
2553 kfree(ha->npiv_info);
2554
2555 ha->srb_mempool = NULL;
2556 ha->eft = NULL;
2557 ha->eft_dma = 0;
2558 ha->sns_cmd = NULL;
2559 ha->sns_cmd_dma = 0;
2560 ha->ct_sns = NULL;
2561 ha->ct_sns_dma = 0;
2562 ha->ms_iocb = NULL;
2563 ha->ms_iocb_dma = 0;
2564 ha->init_cb = NULL;
2565 ha->init_cb_dma = 0;
2566 ha->ex_init_cb = NULL;
2567 ha->ex_init_cb_dma = 0;
2568
2569 ha->s_dma_pool = NULL;
2570
2571 ha->gid_list = NULL;
2572 ha->gid_list_dma = 0;
2573
2574 ha->fw_dump = NULL;
2575 ha->fw_dumped = 0;
2576 ha->fw_dump_reading = 0;
2577 }
2578
2579 struct scsi_qla_host *qla2x00_create_host(struct scsi_host_template *sht,
2580 struct qla_hw_data *ha)
2581 {
2582 struct Scsi_Host *host;
2583 struct scsi_qla_host *vha = NULL;
2584
2585 host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
2586 if (host == NULL) {
2587 printk(KERN_WARNING
2588 "qla2xxx: Couldn't allocate host from scsi layer!\n");
2589 goto fail;
2590 }
2591
2592 /* Clear our data area */
2593 vha = shost_priv(host);
2594 memset(vha, 0, sizeof(scsi_qla_host_t));
2595
2596 vha->host = host;
2597 vha->host_no = host->host_no;
2598 vha->hw = ha;
2599
2600 INIT_LIST_HEAD(&vha->vp_fcports);
2601 INIT_LIST_HEAD(&vha->work_list);
2602 INIT_LIST_HEAD(&vha->list);
2603
2604 spin_lock_init(&vha->work_lock);
2605
2606 sprintf(vha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, vha->host_no);
2607 return vha;
2608
2609 fail:
2610 return vha;
2611 }
2612
2613 static struct qla_work_evt *
2614 qla2x00_alloc_work(struct scsi_qla_host *vha, enum qla_work_type type)
2615 {
2616 struct qla_work_evt *e;
2617
2618 e = kzalloc(sizeof(struct qla_work_evt), GFP_ATOMIC);
2619 if (!e)
2620 return NULL;
2621
2622 INIT_LIST_HEAD(&e->list);
2623 e->type = type;
2624 e->flags = QLA_EVT_FLAG_FREE;
2625 return e;
2626 }
2627
2628 static int
2629 qla2x00_post_work(struct scsi_qla_host *vha, struct qla_work_evt *e)
2630 {
2631 unsigned long flags;
2632
2633 spin_lock_irqsave(&vha->work_lock, flags);
2634 list_add_tail(&e->list, &vha->work_list);
2635 spin_unlock_irqrestore(&vha->work_lock, flags);
2636 qla2xxx_wake_dpc(vha);
2637
2638 return QLA_SUCCESS;
2639 }
2640
2641 int
2642 qla2x00_post_aen_work(struct scsi_qla_host *vha, enum fc_host_event_code code,
2643 u32 data)
2644 {
2645 struct qla_work_evt *e;
2646
2647 e = qla2x00_alloc_work(vha, QLA_EVT_AEN);
2648 if (!e)
2649 return QLA_FUNCTION_FAILED;
2650
2651 e->u.aen.code = code;
2652 e->u.aen.data = data;
2653 return qla2x00_post_work(vha, e);
2654 }
2655
2656 int
2657 qla2x00_post_idc_ack_work(struct scsi_qla_host *vha, uint16_t *mb)
2658 {
2659 struct qla_work_evt *e;
2660
2661 e = qla2x00_alloc_work(vha, QLA_EVT_IDC_ACK);
2662 if (!e)
2663 return QLA_FUNCTION_FAILED;
2664
2665 memcpy(e->u.idc_ack.mb, mb, QLA_IDC_ACK_REGS * sizeof(uint16_t));
2666 return qla2x00_post_work(vha, e);
2667 }
2668
2669 #define qla2x00_post_async_work(name, type) \
2670 int qla2x00_post_async_##name##_work( \
2671 struct scsi_qla_host *vha, \
2672 fc_port_t *fcport, uint16_t *data) \
2673 { \
2674 struct qla_work_evt *e; \
2675 \
2676 e = qla2x00_alloc_work(vha, type); \
2677 if (!e) \
2678 return QLA_FUNCTION_FAILED; \
2679 \
2680 e->u.logio.fcport = fcport; \
2681 if (data) { \
2682 e->u.logio.data[0] = data[0]; \
2683 e->u.logio.data[1] = data[1]; \
2684 } \
2685 return qla2x00_post_work(vha, e); \
2686 }
2687
2688 qla2x00_post_async_work(login, QLA_EVT_ASYNC_LOGIN);
2689 qla2x00_post_async_work(login_done, QLA_EVT_ASYNC_LOGIN_DONE);
2690 qla2x00_post_async_work(logout, QLA_EVT_ASYNC_LOGOUT);
2691 qla2x00_post_async_work(logout_done, QLA_EVT_ASYNC_LOGOUT_DONE);
2692
2693 int
2694 qla2x00_post_uevent_work(struct scsi_qla_host *vha, u32 code)
2695 {
2696 struct qla_work_evt *e;
2697
2698 e = qla2x00_alloc_work(vha, QLA_EVT_UEVENT);
2699 if (!e)
2700 return QLA_FUNCTION_FAILED;
2701
2702 e->u.uevent.code = code;
2703 return qla2x00_post_work(vha, e);
2704 }
2705
2706 static void
2707 qla2x00_uevent_emit(struct scsi_qla_host *vha, u32 code)
2708 {
2709 char event_string[40];
2710 char *envp[] = { event_string, NULL };
2711
2712 switch (code) {
2713 case QLA_UEVENT_CODE_FW_DUMP:
2714 snprintf(event_string, sizeof(event_string), "FW_DUMP=%ld",
2715 vha->host_no);
2716 break;
2717 default:
2718 /* do nothing */
2719 break;
2720 }
2721 kobject_uevent_env(&vha->hw->pdev->dev.kobj, KOBJ_CHANGE, envp);
2722 }
2723
2724 void
2725 qla2x00_do_work(struct scsi_qla_host *vha)
2726 {
2727 struct qla_work_evt *e, *tmp;
2728 unsigned long flags;
2729 LIST_HEAD(work);
2730
2731 spin_lock_irqsave(&vha->work_lock, flags);
2732 list_splice_init(&vha->work_list, &work);
2733 spin_unlock_irqrestore(&vha->work_lock, flags);
2734
2735 list_for_each_entry_safe(e, tmp, &work, list) {
2736 list_del_init(&e->list);
2737
2738 switch (e->type) {
2739 case QLA_EVT_AEN:
2740 fc_host_post_event(vha->host, fc_get_event_number(),
2741 e->u.aen.code, e->u.aen.data);
2742 break;
2743 case QLA_EVT_IDC_ACK:
2744 qla81xx_idc_ack(vha, e->u.idc_ack.mb);
2745 break;
2746 case QLA_EVT_ASYNC_LOGIN:
2747 qla2x00_async_login(vha, e->u.logio.fcport,
2748 e->u.logio.data);
2749 break;
2750 case QLA_EVT_ASYNC_LOGIN_DONE:
2751 qla2x00_async_login_done(vha, e->u.logio.fcport,
2752 e->u.logio.data);
2753 break;
2754 case QLA_EVT_ASYNC_LOGOUT:
2755 qla2x00_async_logout(vha, e->u.logio.fcport);
2756 break;
2757 case QLA_EVT_ASYNC_LOGOUT_DONE:
2758 qla2x00_async_logout_done(vha, e->u.logio.fcport,
2759 e->u.logio.data);
2760 break;
2761 case QLA_EVT_UEVENT:
2762 qla2x00_uevent_emit(vha, e->u.uevent.code);
2763 break;
2764 }
2765 if (e->flags & QLA_EVT_FLAG_FREE)
2766 kfree(e);
2767 }
2768 }
2769
2770 /* Relogins all the fcports of a vport
2771 * Context: dpc thread
2772 */
2773 void qla2x00_relogin(struct scsi_qla_host *vha)
2774 {
2775 fc_port_t *fcport;
2776 int status;
2777 uint16_t next_loopid = 0;
2778 struct qla_hw_data *ha = vha->hw;
2779 uint16_t data[2];
2780
2781 list_for_each_entry(fcport, &vha->vp_fcports, list) {
2782 /*
2783 * If the port is not ONLINE then try to login
2784 * to it if we haven't run out of retries.
2785 */
2786 if (atomic_read(&fcport->state) !=
2787 FCS_ONLINE && fcport->login_retry) {
2788
2789 fcport->login_retry--;
2790 if (fcport->flags & FCF_FABRIC_DEVICE) {
2791 if (fcport->flags & FCF_FCP2_DEVICE)
2792 ha->isp_ops->fabric_logout(vha,
2793 fcport->loop_id,
2794 fcport->d_id.b.domain,
2795 fcport->d_id.b.area,
2796 fcport->d_id.b.al_pa);
2797
2798 if (IS_ALOGIO_CAPABLE(ha)) {
2799 data[0] = 0;
2800 data[1] = QLA_LOGIO_LOGIN_RETRIED;
2801 status = qla2x00_post_async_login_work(
2802 vha, fcport, data);
2803 if (status == QLA_SUCCESS)
2804 continue;
2805 /* Attempt a retry. */
2806 status = 1;
2807 } else
2808 status = qla2x00_fabric_login(vha,
2809 fcport, &next_loopid);
2810 } else
2811 status = qla2x00_local_device_login(vha,
2812 fcport);
2813
2814 if (status == QLA_SUCCESS) {
2815 fcport->old_loop_id = fcport->loop_id;
2816
2817 DEBUG(printk("scsi(%ld): port login OK: logged "
2818 "in ID 0x%x\n", vha->host_no, fcport->loop_id));
2819
2820 qla2x00_update_fcport(vha, fcport);
2821
2822 } else if (status == 1) {
2823 set_bit(RELOGIN_NEEDED, &vha->dpc_flags);
2824 /* retry the login again */
2825 DEBUG(printk("scsi(%ld): Retrying"
2826 " %d login again loop_id 0x%x\n",
2827 vha->host_no, fcport->login_retry,
2828 fcport->loop_id));
2829 } else {
2830 fcport->login_retry = 0;
2831 }
2832
2833 if (fcport->login_retry == 0 && status != QLA_SUCCESS)
2834 fcport->loop_id = FC_NO_LOOP_ID;
2835 }
2836 if (test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags))
2837 break;
2838 }
2839 }
2840
2841 /**************************************************************************
2842 * qla2x00_do_dpc
2843 * This kernel thread is a task that is schedule by the interrupt handler
2844 * to perform the background processing for interrupts.
2845 *
2846 * Notes:
2847 * This task always run in the context of a kernel thread. It
2848 * is kick-off by the driver's detect code and starts up
2849 * up one per adapter. It immediately goes to sleep and waits for
2850 * some fibre event. When either the interrupt handler or
2851 * the timer routine detects a event it will one of the task
2852 * bits then wake us up.
2853 **************************************************************************/
2854 static int
2855 qla2x00_do_dpc(void *data)
2856 {
2857 int rval;
2858 scsi_qla_host_t *base_vha;
2859 struct qla_hw_data *ha;
2860
2861 ha = (struct qla_hw_data *)data;
2862 base_vha = pci_get_drvdata(ha->pdev);
2863
2864 set_user_nice(current, -20);
2865
2866 while (!kthread_should_stop()) {
2867 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
2868
2869 set_current_state(TASK_INTERRUPTIBLE);
2870 schedule();
2871 __set_current_state(TASK_RUNNING);
2872
2873 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
2874
2875 /* Initialization not yet finished. Don't do anything yet. */
2876 if (!base_vha->flags.init_done)
2877 continue;
2878
2879 if (ha->flags.eeh_busy) {
2880 DEBUG17(qla_printk(KERN_WARNING, ha,
2881 "qla2x00_do_dpc: dpc_flags: %lx\n",
2882 base_vha->dpc_flags));
2883 continue;
2884 }
2885
2886 DEBUG3(printk("scsi(%ld): DPC handler\n", base_vha->host_no));
2887
2888 ha->dpc_active = 1;
2889
2890 if (ha->flags.mbox_busy) {
2891 ha->dpc_active = 0;
2892 continue;
2893 }
2894
2895 qla2x00_do_work(base_vha);
2896
2897 if (test_and_clear_bit(ISP_ABORT_NEEDED,
2898 &base_vha->dpc_flags)) {
2899
2900 DEBUG(printk("scsi(%ld): dpc: sched "
2901 "qla2x00_abort_isp ha = %p\n",
2902 base_vha->host_no, ha));
2903 if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
2904 &base_vha->dpc_flags))) {
2905
2906 if (qla2x00_abort_isp(base_vha)) {
2907 /* failed. retry later */
2908 set_bit(ISP_ABORT_NEEDED,
2909 &base_vha->dpc_flags);
2910 }
2911 clear_bit(ABORT_ISP_ACTIVE,
2912 &base_vha->dpc_flags);
2913 }
2914
2915 DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
2916 base_vha->host_no));
2917 }
2918
2919 if (test_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags)) {
2920 qla2x00_update_fcports(base_vha);
2921 clear_bit(FCPORT_UPDATE_NEEDED, &base_vha->dpc_flags);
2922 }
2923
2924 if (test_and_clear_bit(RESET_MARKER_NEEDED,
2925 &base_vha->dpc_flags) &&
2926 (!(test_and_set_bit(RESET_ACTIVE, &base_vha->dpc_flags)))) {
2927
2928 DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
2929 base_vha->host_no));
2930
2931 qla2x00_rst_aen(base_vha);
2932 clear_bit(RESET_ACTIVE, &base_vha->dpc_flags);
2933 }
2934
2935 /* Retry each device up to login retry count */
2936 if ((test_and_clear_bit(RELOGIN_NEEDED,
2937 &base_vha->dpc_flags)) &&
2938 !test_bit(LOOP_RESYNC_NEEDED, &base_vha->dpc_flags) &&
2939 atomic_read(&base_vha->loop_state) != LOOP_DOWN) {
2940
2941 DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
2942 base_vha->host_no));
2943 qla2x00_relogin(base_vha);
2944
2945 DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
2946 base_vha->host_no));
2947 }
2948
2949 if (test_and_clear_bit(LOOP_RESYNC_NEEDED,
2950 &base_vha->dpc_flags)) {
2951
2952 DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
2953 base_vha->host_no));
2954
2955 if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
2956 &base_vha->dpc_flags))) {
2957
2958 rval = qla2x00_loop_resync(base_vha);
2959
2960 clear_bit(LOOP_RESYNC_ACTIVE,
2961 &base_vha->dpc_flags);
2962 }
2963
2964 DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
2965 base_vha->host_no));
2966 }
2967
2968 if (test_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags) &&
2969 atomic_read(&base_vha->loop_state) == LOOP_READY) {
2970 clear_bit(NPIV_CONFIG_NEEDED, &base_vha->dpc_flags);
2971 qla2xxx_flash_npiv_conf(base_vha);
2972 }
2973
2974 if (!ha->interrupts_on)
2975 ha->isp_ops->enable_intrs(ha);
2976
2977 if (test_and_clear_bit(BEACON_BLINK_NEEDED,
2978 &base_vha->dpc_flags))
2979 ha->isp_ops->beacon_blink(base_vha);
2980
2981 qla2x00_do_dpc_all_vps(base_vha);
2982
2983 ha->dpc_active = 0;
2984 } /* End of while(1) */
2985
2986 DEBUG(printk("scsi(%ld): DPC handler exiting\n", base_vha->host_no));
2987
2988 /*
2989 * Make sure that nobody tries to wake us up again.
2990 */
2991 ha->dpc_active = 0;
2992
2993 /* Cleanup any residual CTX SRBs. */
2994 qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
2995
2996 return 0;
2997 }
2998
2999 void
3000 qla2xxx_wake_dpc(struct scsi_qla_host *vha)
3001 {
3002 struct qla_hw_data *ha = vha->hw;
3003 struct task_struct *t = ha->dpc_thread;
3004
3005 if (!test_bit(UNLOADING, &vha->dpc_flags) && t)
3006 wake_up_process(t);
3007 }
3008
3009 /*
3010 * qla2x00_rst_aen
3011 * Processes asynchronous reset.
3012 *
3013 * Input:
3014 * ha = adapter block pointer.
3015 */
3016 static void
3017 qla2x00_rst_aen(scsi_qla_host_t *vha)
3018 {
3019 if (vha->flags.online && !vha->flags.reset_active &&
3020 !atomic_read(&vha->loop_down_timer) &&
3021 !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))) {
3022 do {
3023 clear_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
3024
3025 /*
3026 * Issue marker command only when we are going to start
3027 * the I/O.
3028 */
3029 vha->marker_needed = 1;
3030 } while (!atomic_read(&vha->loop_down_timer) &&
3031 (test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags)));
3032 }
3033 }
3034
3035 static void
3036 qla2x00_sp_free_dma(srb_t *sp)
3037 {
3038 struct scsi_cmnd *cmd = sp->cmd;
3039
3040 if (sp->flags & SRB_DMA_VALID) {
3041 scsi_dma_unmap(cmd);
3042 sp->flags &= ~SRB_DMA_VALID;
3043 }
3044 CMD_SP(cmd) = NULL;
3045 }
3046
3047 void
3048 qla2x00_sp_compl(struct qla_hw_data *ha, srb_t *sp)
3049 {
3050 struct scsi_cmnd *cmd = sp->cmd;
3051
3052 qla2x00_sp_free_dma(sp);
3053
3054 mempool_free(sp, ha->srb_mempool);
3055
3056 cmd->scsi_done(cmd);
3057 }
3058
3059 /**************************************************************************
3060 * qla2x00_timer
3061 *
3062 * Description:
3063 * One second timer
3064 *
3065 * Context: Interrupt
3066 ***************************************************************************/
3067 void
3068 qla2x00_timer(scsi_qla_host_t *vha)
3069 {
3070 unsigned long cpu_flags = 0;
3071 fc_port_t *fcport;
3072 int start_dpc = 0;
3073 int index;
3074 srb_t *sp;
3075 int t;
3076 uint16_t w;
3077 struct qla_hw_data *ha = vha->hw;
3078 struct req_que *req;
3079
3080 /* Hardware read to raise pending EEH errors during mailbox waits. */
3081 if (!pci_channel_offline(ha->pdev))
3082 pci_read_config_word(ha->pdev, PCI_VENDOR_ID, &w);
3083 /*
3084 * Ports - Port down timer.
3085 *
3086 * Whenever, a port is in the LOST state we start decrementing its port
3087 * down timer every second until it reaches zero. Once it reaches zero
3088 * the port it marked DEAD.
3089 */
3090 t = 0;
3091 list_for_each_entry(fcport, &vha->vp_fcports, list) {
3092 if (fcport->port_type != FCT_TARGET)
3093 continue;
3094
3095 if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
3096
3097 if (atomic_read(&fcport->port_down_timer) == 0)
3098 continue;
3099
3100 if (atomic_dec_and_test(&fcport->port_down_timer) != 0)
3101 atomic_set(&fcport->state, FCS_DEVICE_DEAD);
3102
3103 DEBUG(printk("scsi(%ld): fcport-%d - port retry count: "
3104 "%d remaining\n",
3105 vha->host_no,
3106 t, atomic_read(&fcport->port_down_timer)));
3107 }
3108 t++;
3109 } /* End of for fcport */
3110
3111
3112 /* Loop down handler. */
3113 if (atomic_read(&vha->loop_down_timer) > 0 &&
3114 !(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
3115 && vha->flags.online) {
3116
3117 if (atomic_read(&vha->loop_down_timer) ==
3118 vha->loop_down_abort_time) {
3119
3120 DEBUG(printk("scsi(%ld): Loop Down - aborting the "
3121 "queues before time expire\n",
3122 vha->host_no));
3123
3124 if (!IS_QLA2100(ha) && vha->link_down_timeout)
3125 atomic_set(&vha->loop_state, LOOP_DEAD);
3126
3127 /*
3128 * Schedule an ISP abort to return any FCP2-device
3129 * commands.
3130 */
3131 /* NPIV - scan physical port only */
3132 if (!vha->vp_idx) {
3133 spin_lock_irqsave(&ha->hardware_lock,
3134 cpu_flags);
3135 req = ha->req_q_map[0];
3136 for (index = 1;
3137 index < MAX_OUTSTANDING_COMMANDS;
3138 index++) {
3139 fc_port_t *sfcp;
3140
3141 sp = req->outstanding_cmds[index];
3142 if (!sp)
3143 continue;
3144 if (sp->ctx)
3145 continue;
3146 sfcp = sp->fcport;
3147 if (!(sfcp->flags & FCF_FCP2_DEVICE))
3148 continue;
3149
3150 set_bit(ISP_ABORT_NEEDED,
3151 &vha->dpc_flags);
3152 break;
3153 }
3154 spin_unlock_irqrestore(&ha->hardware_lock,
3155 cpu_flags);
3156 }
3157 start_dpc++;
3158 }
3159
3160 /* if the loop has been down for 4 minutes, reinit adapter */
3161 if (atomic_dec_and_test(&vha->loop_down_timer) != 0) {
3162 if (!(vha->device_flags & DFLG_NO_CABLE)) {
3163 DEBUG(printk("scsi(%ld): Loop down - "
3164 "aborting ISP.\n",
3165 vha->host_no));
3166 qla_printk(KERN_WARNING, ha,
3167 "Loop down - aborting ISP.\n");
3168
3169 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3170 }
3171 }
3172 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
3173 vha->host_no,
3174 atomic_read(&vha->loop_down_timer)));
3175 }
3176
3177 /* Check if beacon LED needs to be blinked */
3178 if (ha->beacon_blink_led == 1) {
3179 set_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags);
3180 start_dpc++;
3181 }
3182
3183 /* Process any deferred work. */
3184 if (!list_empty(&vha->work_list))
3185 start_dpc++;
3186
3187 /* Schedule the DPC routine if needed */
3188 if ((test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) ||
3189 test_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags) ||
3190 test_bit(FCPORT_UPDATE_NEEDED, &vha->dpc_flags) ||
3191 start_dpc ||
3192 test_bit(RESET_MARKER_NEEDED, &vha->dpc_flags) ||
3193 test_bit(BEACON_BLINK_NEEDED, &vha->dpc_flags) ||
3194 test_bit(VP_DPC_NEEDED, &vha->dpc_flags) ||
3195 test_bit(RELOGIN_NEEDED, &vha->dpc_flags)))
3196 qla2xxx_wake_dpc(vha);
3197
3198 qla2x00_restart_timer(vha, WATCH_INTERVAL);
3199 }
3200
3201 /* Firmware interface routines. */
3202
3203 #define FW_BLOBS 7
3204 #define FW_ISP21XX 0
3205 #define FW_ISP22XX 1
3206 #define FW_ISP2300 2
3207 #define FW_ISP2322 3
3208 #define FW_ISP24XX 4
3209 #define FW_ISP25XX 5
3210 #define FW_ISP81XX 6
3211
3212 #define FW_FILE_ISP21XX "ql2100_fw.bin"
3213 #define FW_FILE_ISP22XX "ql2200_fw.bin"
3214 #define FW_FILE_ISP2300 "ql2300_fw.bin"
3215 #define FW_FILE_ISP2322 "ql2322_fw.bin"
3216 #define FW_FILE_ISP24XX "ql2400_fw.bin"
3217 #define FW_FILE_ISP25XX "ql2500_fw.bin"
3218 #define FW_FILE_ISP81XX "ql8100_fw.bin"
3219
3220 static DEFINE_MUTEX(qla_fw_lock);
3221
3222 static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
3223 { .name = FW_FILE_ISP21XX, .segs = { 0x1000, 0 }, },
3224 { .name = FW_FILE_ISP22XX, .segs = { 0x1000, 0 }, },
3225 { .name = FW_FILE_ISP2300, .segs = { 0x800, 0 }, },
3226 { .name = FW_FILE_ISP2322, .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
3227 { .name = FW_FILE_ISP24XX, },
3228 { .name = FW_FILE_ISP25XX, },
3229 { .name = FW_FILE_ISP81XX, },
3230 };
3231
3232 struct fw_blob *
3233 qla2x00_request_firmware(scsi_qla_host_t *vha)
3234 {
3235 struct qla_hw_data *ha = vha->hw;
3236 struct fw_blob *blob;
3237
3238 blob = NULL;
3239 if (IS_QLA2100(ha)) {
3240 blob = &qla_fw_blobs[FW_ISP21XX];
3241 } else if (IS_QLA2200(ha)) {
3242 blob = &qla_fw_blobs[FW_ISP22XX];
3243 } else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
3244 blob = &qla_fw_blobs[FW_ISP2300];
3245 } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
3246 blob = &qla_fw_blobs[FW_ISP2322];
3247 } else if (IS_QLA24XX_TYPE(ha)) {
3248 blob = &qla_fw_blobs[FW_ISP24XX];
3249 } else if (IS_QLA25XX(ha)) {
3250 blob = &qla_fw_blobs[FW_ISP25XX];
3251 } else if (IS_QLA81XX(ha)) {
3252 blob = &qla_fw_blobs[FW_ISP81XX];
3253 }
3254
3255 mutex_lock(&qla_fw_lock);
3256 if (blob->fw)
3257 goto out;
3258
3259 if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
3260 DEBUG2(printk("scsi(%ld): Failed to load firmware image "
3261 "(%s).\n", vha->host_no, blob->name));
3262 blob->fw = NULL;
3263 blob = NULL;
3264 goto out;
3265 }
3266
3267 out:
3268 mutex_unlock(&qla_fw_lock);
3269 return blob;
3270 }
3271
3272 static void
3273 qla2x00_release_firmware(void)
3274 {
3275 int idx;
3276
3277 mutex_lock(&qla_fw_lock);
3278 for (idx = 0; idx < FW_BLOBS; idx++)
3279 if (qla_fw_blobs[idx].fw)
3280 release_firmware(qla_fw_blobs[idx].fw);
3281 mutex_unlock(&qla_fw_lock);
3282 }
3283
3284 static pci_ers_result_t
3285 qla2xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
3286 {
3287 scsi_qla_host_t *vha = pci_get_drvdata(pdev);
3288 struct qla_hw_data *ha = vha->hw;
3289
3290 DEBUG2(qla_printk(KERN_WARNING, ha, "error_detected:state %x\n",
3291 state));
3292
3293 switch (state) {
3294 case pci_channel_io_normal:
3295 ha->flags.eeh_busy = 0;
3296 return PCI_ERS_RESULT_CAN_RECOVER;
3297 case pci_channel_io_frozen:
3298 ha->flags.eeh_busy = 1;
3299 qla2x00_free_irqs(vha);
3300 pci_disable_device(pdev);
3301 return PCI_ERS_RESULT_NEED_RESET;
3302 case pci_channel_io_perm_failure:
3303 ha->flags.pci_channel_io_perm_failure = 1;
3304 qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
3305 return PCI_ERS_RESULT_DISCONNECT;
3306 }
3307 return PCI_ERS_RESULT_NEED_RESET;
3308 }
3309
3310 static pci_ers_result_t
3311 qla2xxx_pci_mmio_enabled(struct pci_dev *pdev)
3312 {
3313 int risc_paused = 0;
3314 uint32_t stat;
3315 unsigned long flags;
3316 scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
3317 struct qla_hw_data *ha = base_vha->hw;
3318 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
3319 struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
3320
3321 spin_lock_irqsave(&ha->hardware_lock, flags);
3322 if (IS_QLA2100(ha) || IS_QLA2200(ha)){
3323 stat = RD_REG_DWORD(&reg->hccr);
3324 if (stat & HCCR_RISC_PAUSE)
3325 risc_paused = 1;
3326 } else if (IS_QLA23XX(ha)) {
3327 stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
3328 if (stat & HSR_RISC_PAUSED)
3329 risc_paused = 1;
3330 } else if (IS_FWI2_CAPABLE(ha)) {
3331 stat = RD_REG_DWORD(&reg24->host_status);
3332 if (stat & HSRX_RISC_PAUSED)
3333 risc_paused = 1;
3334 }
3335 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3336
3337 if (risc_paused) {
3338 qla_printk(KERN_INFO, ha, "RISC paused -- mmio_enabled, "
3339 "Dumping firmware!\n");
3340 ha->isp_ops->fw_dump(base_vha, 0);
3341
3342 return PCI_ERS_RESULT_NEED_RESET;
3343 } else
3344 return PCI_ERS_RESULT_RECOVERED;
3345 }
3346
3347 static pci_ers_result_t
3348 qla2xxx_pci_slot_reset(struct pci_dev *pdev)
3349 {
3350 pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
3351 scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
3352 struct qla_hw_data *ha = base_vha->hw;
3353 struct rsp_que *rsp;
3354 int rc, retries = 10;
3355
3356 DEBUG17(qla_printk(KERN_WARNING, ha, "slot_reset\n"));
3357
3358 /* Workaround: qla2xxx driver which access hardware earlier
3359 * needs error state to be pci_channel_io_online.
3360 * Otherwise mailbox command timesout.
3361 */
3362 pdev->error_state = pci_channel_io_normal;
3363
3364 pci_restore_state(pdev);
3365
3366 /* pci_restore_state() clears the saved_state flag of the device
3367 * save restored state which resets saved_state flag
3368 */
3369 pci_save_state(pdev);
3370
3371 if (ha->mem_only)
3372 rc = pci_enable_device_mem(pdev);
3373 else
3374 rc = pci_enable_device(pdev);
3375
3376 if (rc) {
3377 qla_printk(KERN_WARNING, ha,
3378 "Can't re-enable PCI device after reset.\n");
3379 return ret;
3380 }
3381
3382 rsp = ha->rsp_q_map[0];
3383 if (qla2x00_request_irqs(ha, rsp))
3384 return ret;
3385
3386 if (ha->isp_ops->pci_config(base_vha))
3387 return ret;
3388
3389 while (ha->flags.mbox_busy && retries--)
3390 msleep(1000);
3391
3392 set_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
3393 if (qla2x00_abort_isp(base_vha) == QLA_SUCCESS)
3394 ret = PCI_ERS_RESULT_RECOVERED;
3395 clear_bit(ABORT_ISP_ACTIVE, &base_vha->dpc_flags);
3396
3397 pci_cleanup_aer_uncorrect_error_status(pdev);
3398
3399 DEBUG17(qla_printk(KERN_WARNING, ha,
3400 "slot_reset-return:ret=%x\n", ret));
3401
3402 return ret;
3403 }
3404
3405 static void
3406 qla2xxx_pci_resume(struct pci_dev *pdev)
3407 {
3408 scsi_qla_host_t *base_vha = pci_get_drvdata(pdev);
3409 struct qla_hw_data *ha = base_vha->hw;
3410 int ret;
3411
3412 DEBUG17(qla_printk(KERN_WARNING, ha, "pci_resume\n"));
3413
3414 ret = qla2x00_wait_for_hba_online(base_vha);
3415 if (ret != QLA_SUCCESS) {
3416 qla_printk(KERN_ERR, ha,
3417 "the device failed to resume I/O "
3418 "from slot/link_reset");
3419 }
3420
3421 ha->flags.eeh_busy = 0;
3422 }
3423
3424 static struct pci_error_handlers qla2xxx_err_handler = {
3425 .error_detected = qla2xxx_pci_error_detected,
3426 .mmio_enabled = qla2xxx_pci_mmio_enabled,
3427 .slot_reset = qla2xxx_pci_slot_reset,
3428 .resume = qla2xxx_pci_resume,
3429 };
3430
3431 static struct pci_device_id qla2xxx_pci_tbl[] = {
3432 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
3433 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
3434 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
3435 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
3436 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
3437 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
3438 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
3439 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
3440 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
3441 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8432) },
3442 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
3443 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
3444 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2532) },
3445 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8001) },
3446 { 0 },
3447 };
3448 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
3449
3450 static struct pci_driver qla2xxx_pci_driver = {
3451 .name = QLA2XXX_DRIVER_NAME,
3452 .driver = {
3453 .owner = THIS_MODULE,
3454 },
3455 .id_table = qla2xxx_pci_tbl,
3456 .probe = qla2x00_probe_one,
3457 .remove = qla2x00_remove_one,
3458 .err_handler = &qla2xxx_err_handler,
3459 };
3460
3461 /**
3462 * qla2x00_module_init - Module initialization.
3463 **/
3464 static int __init
3465 qla2x00_module_init(void)
3466 {
3467 int ret = 0;
3468
3469 /* Allocate cache for SRBs. */
3470 srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
3471 SLAB_HWCACHE_ALIGN, NULL);
3472 if (srb_cachep == NULL) {
3473 printk(KERN_ERR
3474 "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
3475 return -ENOMEM;
3476 }
3477
3478 /* Derive version string. */
3479 strcpy(qla2x00_version_str, QLA2XXX_VERSION);
3480 if (ql2xextended_error_logging)
3481 strcat(qla2x00_version_str, "-debug");
3482
3483 qla2xxx_transport_template =
3484 fc_attach_transport(&qla2xxx_transport_functions);
3485 if (!qla2xxx_transport_template) {
3486 kmem_cache_destroy(srb_cachep);
3487 return -ENODEV;
3488 }
3489 qla2xxx_transport_vport_template =
3490 fc_attach_transport(&qla2xxx_transport_vport_functions);
3491 if (!qla2xxx_transport_vport_template) {
3492 kmem_cache_destroy(srb_cachep);
3493 fc_release_transport(qla2xxx_transport_template);
3494 return -ENODEV;
3495 }
3496
3497 printk(KERN_INFO "QLogic Fibre Channel HBA Driver: %s\n",
3498 qla2x00_version_str);
3499 ret = pci_register_driver(&qla2xxx_pci_driver);
3500 if (ret) {
3501 kmem_cache_destroy(srb_cachep);
3502 fc_release_transport(qla2xxx_transport_template);
3503 fc_release_transport(qla2xxx_transport_vport_template);
3504 }
3505 return ret;
3506 }
3507
3508 /**
3509 * qla2x00_module_exit - Module cleanup.
3510 **/
3511 static void __exit
3512 qla2x00_module_exit(void)
3513 {
3514 pci_unregister_driver(&qla2xxx_pci_driver);
3515 qla2x00_release_firmware();
3516 kmem_cache_destroy(srb_cachep);
3517 fc_release_transport(qla2xxx_transport_template);
3518 fc_release_transport(qla2xxx_transport_vport_template);
3519 }
3520
3521 module_init(qla2x00_module_init);
3522 module_exit(qla2x00_module_exit);
3523
3524 MODULE_AUTHOR("QLogic Corporation");
3525 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
3526 MODULE_LICENSE("GPL");
3527 MODULE_VERSION(QLA2XXX_VERSION);
3528 MODULE_FIRMWARE(FW_FILE_ISP21XX);
3529 MODULE_FIRMWARE(FW_FILE_ISP22XX);
3530 MODULE_FIRMWARE(FW_FILE_ISP2300);
3531 MODULE_FIRMWARE(FW_FILE_ISP2322);
3532 MODULE_FIRMWARE(FW_FILE_ISP24XX);
3533 MODULE_FIRMWARE(FW_FILE_ISP25XX);
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