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[SCSI] qla2xxx: Correct fcport state-management during loss.
[deliverable/linux.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
15 #include <scsi/scsi_tcq.h>
16 #include <scsi/scsicam.h>
17 #include <scsi/scsi_transport.h>
18 #include <scsi/scsi_transport_fc.h>
19
20 /*
21 * Driver version
22 */
23 char qla2x00_version_str[40];
24
25 /*
26 * SRB allocation cache
27 */
28 static struct kmem_cache *srb_cachep;
29
30 int ql2xlogintimeout = 20;
31 module_param(ql2xlogintimeout, int, S_IRUGO|S_IRUSR);
32 MODULE_PARM_DESC(ql2xlogintimeout,
33 "Login timeout value in seconds.");
34
35 int qlport_down_retry;
36 module_param(qlport_down_retry, int, S_IRUGO|S_IRUSR);
37 MODULE_PARM_DESC(qlport_down_retry,
38 "Maximum number of command retries to a port that returns "
39 "a PORT-DOWN status.");
40
41 int ql2xplogiabsentdevice;
42 module_param(ql2xplogiabsentdevice, int, S_IRUGO|S_IWUSR);
43 MODULE_PARM_DESC(ql2xplogiabsentdevice,
44 "Option to enable PLOGI to devices that are not present after "
45 "a Fabric scan. This is needed for several broken switches. "
46 "Default is 0 - no PLOGI. 1 - perfom PLOGI.");
47
48 int ql2xloginretrycount = 0;
49 module_param(ql2xloginretrycount, int, S_IRUGO|S_IRUSR);
50 MODULE_PARM_DESC(ql2xloginretrycount,
51 "Specify an alternate value for the NVRAM login retry count.");
52
53 int ql2xallocfwdump = 1;
54 module_param(ql2xallocfwdump, int, S_IRUGO|S_IRUSR);
55 MODULE_PARM_DESC(ql2xallocfwdump,
56 "Option to enable allocation of memory for a firmware dump "
57 "during HBA initialization. Memory allocation requirements "
58 "vary by ISP type. Default is 1 - allocate memory.");
59
60 int ql2xextended_error_logging;
61 module_param(ql2xextended_error_logging, int, S_IRUGO|S_IWUSR);
62 MODULE_PARM_DESC(ql2xextended_error_logging,
63 "Option to enable extended error logging, "
64 "Default is 0 - no logging. 1 - log errors.");
65
66 static void qla2x00_free_device(scsi_qla_host_t *);
67
68 static void qla2x00_config_dma_addressing(scsi_qla_host_t *ha);
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 ql2xqfullrampup = 120;
83 module_param(ql2xqfullrampup, int, S_IRUGO|S_IWUSR);
84 MODULE_PARM_DESC(ql2xqfullrampup,
85 "Number of seconds to wait to begin to ramp-up the queue "
86 "depth for a device after a queue-full condition has been "
87 "detected. Default is 120 seconds.");
88
89 int ql2xiidmaenable=1;
90 module_param(ql2xiidmaenable, int, S_IRUGO|S_IRUSR);
91 MODULE_PARM_DESC(ql2xiidmaenable,
92 "Enables iIDMA settings "
93 "Default is 1 - perform iIDMA. 0 - no iIDMA.");
94
95
96 /*
97 * SCSI host template entry points
98 */
99 static int qla2xxx_slave_configure(struct scsi_device * device);
100 static int qla2xxx_slave_alloc(struct scsi_device *);
101 static int qla2xxx_scan_finished(struct Scsi_Host *, unsigned long time);
102 static void qla2xxx_scan_start(struct Scsi_Host *);
103 static void qla2xxx_slave_destroy(struct scsi_device *);
104 static int qla2x00_queuecommand(struct scsi_cmnd *cmd,
105 void (*fn)(struct scsi_cmnd *));
106 static int qla24xx_queuecommand(struct scsi_cmnd *cmd,
107 void (*fn)(struct scsi_cmnd *));
108 static int qla2xxx_eh_abort(struct scsi_cmnd *);
109 static int qla2xxx_eh_device_reset(struct scsi_cmnd *);
110 static int qla2xxx_eh_target_reset(struct scsi_cmnd *);
111 static int qla2xxx_eh_bus_reset(struct scsi_cmnd *);
112 static int qla2xxx_eh_host_reset(struct scsi_cmnd *);
113
114 static int qla2x00_change_queue_depth(struct scsi_device *, int);
115 static int qla2x00_change_queue_type(struct scsi_device *, int);
116
117 static struct scsi_host_template qla2x00_driver_template = {
118 .module = THIS_MODULE,
119 .name = QLA2XXX_DRIVER_NAME,
120 .queuecommand = qla2x00_queuecommand,
121
122 .eh_abort_handler = qla2xxx_eh_abort,
123 .eh_device_reset_handler = qla2xxx_eh_device_reset,
124 .eh_target_reset_handler = qla2xxx_eh_target_reset,
125 .eh_bus_reset_handler = qla2xxx_eh_bus_reset,
126 .eh_host_reset_handler = qla2xxx_eh_host_reset,
127
128 .slave_configure = qla2xxx_slave_configure,
129
130 .slave_alloc = qla2xxx_slave_alloc,
131 .slave_destroy = qla2xxx_slave_destroy,
132 .scan_finished = qla2xxx_scan_finished,
133 .scan_start = qla2xxx_scan_start,
134 .change_queue_depth = qla2x00_change_queue_depth,
135 .change_queue_type = qla2x00_change_queue_type,
136 .this_id = -1,
137 .cmd_per_lun = 3,
138 .use_clustering = ENABLE_CLUSTERING,
139 .sg_tablesize = SG_ALL,
140
141 /*
142 * The RISC allows for each command to transfer (2^32-1) bytes of data,
143 * which equates to 0x800000 sectors.
144 */
145 .max_sectors = 0xFFFF,
146 .shost_attrs = qla2x00_host_attrs,
147 };
148
149 struct scsi_host_template qla24xx_driver_template = {
150 .module = THIS_MODULE,
151 .name = QLA2XXX_DRIVER_NAME,
152 .queuecommand = qla24xx_queuecommand,
153
154 .eh_abort_handler = qla2xxx_eh_abort,
155 .eh_device_reset_handler = qla2xxx_eh_device_reset,
156 .eh_target_reset_handler = qla2xxx_eh_target_reset,
157 .eh_bus_reset_handler = qla2xxx_eh_bus_reset,
158 .eh_host_reset_handler = qla2xxx_eh_host_reset,
159
160 .slave_configure = qla2xxx_slave_configure,
161
162 .slave_alloc = qla2xxx_slave_alloc,
163 .slave_destroy = qla2xxx_slave_destroy,
164 .scan_finished = qla2xxx_scan_finished,
165 .scan_start = qla2xxx_scan_start,
166 .change_queue_depth = qla2x00_change_queue_depth,
167 .change_queue_type = qla2x00_change_queue_type,
168 .this_id = -1,
169 .cmd_per_lun = 3,
170 .use_clustering = ENABLE_CLUSTERING,
171 .sg_tablesize = SG_ALL,
172
173 .max_sectors = 0xFFFF,
174 .shost_attrs = qla2x00_host_attrs,
175 };
176
177 static struct scsi_transport_template *qla2xxx_transport_template = NULL;
178 struct scsi_transport_template *qla2xxx_transport_vport_template = NULL;
179
180 /* TODO Convert to inlines
181 *
182 * Timer routines
183 */
184
185 __inline__ void
186 qla2x00_start_timer(scsi_qla_host_t *ha, void *func, unsigned long interval)
187 {
188 init_timer(&ha->timer);
189 ha->timer.expires = jiffies + interval * HZ;
190 ha->timer.data = (unsigned long)ha;
191 ha->timer.function = (void (*)(unsigned long))func;
192 add_timer(&ha->timer);
193 ha->timer_active = 1;
194 }
195
196 static inline void
197 qla2x00_restart_timer(scsi_qla_host_t *ha, unsigned long interval)
198 {
199 mod_timer(&ha->timer, jiffies + interval * HZ);
200 }
201
202 static __inline__ void
203 qla2x00_stop_timer(scsi_qla_host_t *ha)
204 {
205 del_timer_sync(&ha->timer);
206 ha->timer_active = 0;
207 }
208
209 static int qla2x00_do_dpc(void *data);
210
211 static void qla2x00_rst_aen(scsi_qla_host_t *);
212
213 static int qla2x00_mem_alloc(scsi_qla_host_t *);
214 static void qla2x00_mem_free(scsi_qla_host_t *ha);
215 static void qla2x00_sp_free_dma(scsi_qla_host_t *, srb_t *);
216
217 /* -------------------------------------------------------------------------- */
218
219 static char *
220 qla2x00_pci_info_str(struct scsi_qla_host *ha, char *str)
221 {
222 static char *pci_bus_modes[] = {
223 "33", "66", "100", "133",
224 };
225 uint16_t pci_bus;
226
227 strcpy(str, "PCI");
228 pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
229 if (pci_bus) {
230 strcat(str, "-X (");
231 strcat(str, pci_bus_modes[pci_bus]);
232 } else {
233 pci_bus = (ha->pci_attr & BIT_8) >> 8;
234 strcat(str, " (");
235 strcat(str, pci_bus_modes[pci_bus]);
236 }
237 strcat(str, " MHz)");
238
239 return (str);
240 }
241
242 static char *
243 qla24xx_pci_info_str(struct scsi_qla_host *ha, char *str)
244 {
245 static char *pci_bus_modes[] = { "33", "66", "100", "133", };
246 uint32_t pci_bus;
247 int pcie_reg;
248
249 pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
250 if (pcie_reg) {
251 char lwstr[6];
252 uint16_t pcie_lstat, lspeed, lwidth;
253
254 pcie_reg += 0x12;
255 pci_read_config_word(ha->pdev, pcie_reg, &pcie_lstat);
256 lspeed = pcie_lstat & (BIT_0 | BIT_1 | BIT_2 | BIT_3);
257 lwidth = (pcie_lstat &
258 (BIT_4 | BIT_5 | BIT_6 | BIT_7 | BIT_8 | BIT_9)) >> 4;
259
260 strcpy(str, "PCIe (");
261 if (lspeed == 1)
262 strcat(str, "2.5GT/s ");
263 else if (lspeed == 2)
264 strcat(str, "5.0GT/s ");
265 else
266 strcat(str, "<unknown> ");
267 snprintf(lwstr, sizeof(lwstr), "x%d)", lwidth);
268 strcat(str, lwstr);
269
270 return str;
271 }
272
273 strcpy(str, "PCI");
274 pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
275 if (pci_bus == 0 || pci_bus == 8) {
276 strcat(str, " (");
277 strcat(str, pci_bus_modes[pci_bus >> 3]);
278 } else {
279 strcat(str, "-X ");
280 if (pci_bus & BIT_2)
281 strcat(str, "Mode 2");
282 else
283 strcat(str, "Mode 1");
284 strcat(str, " (");
285 strcat(str, pci_bus_modes[pci_bus & ~BIT_2]);
286 }
287 strcat(str, " MHz)");
288
289 return str;
290 }
291
292 static char *
293 qla2x00_fw_version_str(struct scsi_qla_host *ha, char *str)
294 {
295 char un_str[10];
296
297 sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
298 ha->fw_minor_version,
299 ha->fw_subminor_version);
300
301 if (ha->fw_attributes & BIT_9) {
302 strcat(str, "FLX");
303 return (str);
304 }
305
306 switch (ha->fw_attributes & 0xFF) {
307 case 0x7:
308 strcat(str, "EF");
309 break;
310 case 0x17:
311 strcat(str, "TP");
312 break;
313 case 0x37:
314 strcat(str, "IP");
315 break;
316 case 0x77:
317 strcat(str, "VI");
318 break;
319 default:
320 sprintf(un_str, "(%x)", ha->fw_attributes);
321 strcat(str, un_str);
322 break;
323 }
324 if (ha->fw_attributes & 0x100)
325 strcat(str, "X");
326
327 return (str);
328 }
329
330 static char *
331 qla24xx_fw_version_str(struct scsi_qla_host *ha, char *str)
332 {
333 sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
334 ha->fw_minor_version,
335 ha->fw_subminor_version);
336
337 if (ha->fw_attributes & BIT_0)
338 strcat(str, "[Class 2] ");
339 if (ha->fw_attributes & BIT_1)
340 strcat(str, "[IP] ");
341 if (ha->fw_attributes & BIT_2)
342 strcat(str, "[Multi-ID] ");
343 if (ha->fw_attributes & BIT_3)
344 strcat(str, "[SB-2] ");
345 if (ha->fw_attributes & BIT_4)
346 strcat(str, "[T10 CRC] ");
347 if (ha->fw_attributes & BIT_5)
348 strcat(str, "[VI] ");
349 if (ha->fw_attributes & BIT_10)
350 strcat(str, "[84XX] ");
351 if (ha->fw_attributes & BIT_13)
352 strcat(str, "[Experimental]");
353 return str;
354 }
355
356 static inline srb_t *
357 qla2x00_get_new_sp(scsi_qla_host_t *ha, fc_port_t *fcport,
358 struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
359 {
360 srb_t *sp;
361
362 sp = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
363 if (!sp)
364 return sp;
365
366 sp->ha = ha;
367 sp->fcport = fcport;
368 sp->cmd = cmd;
369 sp->flags = 0;
370 CMD_SP(cmd) = (void *)sp;
371 cmd->scsi_done = done;
372
373 return sp;
374 }
375
376 static int
377 qla2x00_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
378 {
379 scsi_qla_host_t *ha = shost_priv(cmd->device->host);
380 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
381 struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
382 srb_t *sp;
383 int rval;
384
385 if (unlikely(pci_channel_offline(ha->pdev))) {
386 cmd->result = DID_REQUEUE << 16;
387 goto qc_fail_command;
388 }
389
390 rval = fc_remote_port_chkready(rport);
391 if (rval) {
392 cmd->result = rval;
393 goto qc_fail_command;
394 }
395
396 /* Close window on fcport/rport state-transitioning. */
397 if (fcport->drport) {
398 cmd->result = DID_IMM_RETRY << 16;
399 goto qc_fail_command;
400 }
401
402 if (atomic_read(&fcport->state) != FCS_ONLINE) {
403 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
404 atomic_read(&ha->loop_state) == LOOP_DEAD) {
405 cmd->result = DID_NO_CONNECT << 16;
406 goto qc_fail_command;
407 }
408 goto qc_host_busy;
409 }
410
411 spin_unlock_irq(ha->host->host_lock);
412
413 sp = qla2x00_get_new_sp(ha, fcport, cmd, done);
414 if (!sp)
415 goto qc_host_busy_lock;
416
417 rval = qla2x00_start_scsi(sp);
418 if (rval != QLA_SUCCESS)
419 goto qc_host_busy_free_sp;
420
421 spin_lock_irq(ha->host->host_lock);
422
423 return 0;
424
425 qc_host_busy_free_sp:
426 qla2x00_sp_free_dma(ha, sp);
427 mempool_free(sp, ha->srb_mempool);
428
429 qc_host_busy_lock:
430 spin_lock_irq(ha->host->host_lock);
431
432 qc_host_busy:
433 return SCSI_MLQUEUE_HOST_BUSY;
434
435 qc_fail_command:
436 done(cmd);
437
438 return 0;
439 }
440
441
442 static int
443 qla24xx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
444 {
445 scsi_qla_host_t *ha = shost_priv(cmd->device->host);
446 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
447 struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
448 srb_t *sp;
449 int rval;
450 scsi_qla_host_t *pha = to_qla_parent(ha);
451
452 if (unlikely(pci_channel_offline(ha->pdev))) {
453 cmd->result = DID_REQUEUE << 16;
454 goto qc24_fail_command;
455 }
456
457 rval = fc_remote_port_chkready(rport);
458 if (rval) {
459 cmd->result = rval;
460 goto qc24_fail_command;
461 }
462
463 /* Close window on fcport/rport state-transitioning. */
464 if (fcport->drport) {
465 cmd->result = DID_IMM_RETRY << 16;
466 goto qc24_fail_command;
467 }
468
469 if (atomic_read(&fcport->state) != FCS_ONLINE) {
470 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
471 atomic_read(&pha->loop_state) == LOOP_DEAD) {
472 cmd->result = DID_NO_CONNECT << 16;
473 goto qc24_fail_command;
474 }
475 goto qc24_host_busy;
476 }
477
478 spin_unlock_irq(ha->host->host_lock);
479
480 sp = qla2x00_get_new_sp(pha, fcport, cmd, done);
481 if (!sp)
482 goto qc24_host_busy_lock;
483
484 rval = qla24xx_start_scsi(sp);
485 if (rval != QLA_SUCCESS)
486 goto qc24_host_busy_free_sp;
487
488 spin_lock_irq(ha->host->host_lock);
489
490 return 0;
491
492 qc24_host_busy_free_sp:
493 qla2x00_sp_free_dma(pha, sp);
494 mempool_free(sp, pha->srb_mempool);
495
496 qc24_host_busy_lock:
497 spin_lock_irq(ha->host->host_lock);
498
499 qc24_host_busy:
500 return SCSI_MLQUEUE_HOST_BUSY;
501
502 qc24_fail_command:
503 done(cmd);
504
505 return 0;
506 }
507
508
509 /*
510 * qla2x00_eh_wait_on_command
511 * Waits for the command to be returned by the Firmware for some
512 * max time.
513 *
514 * Input:
515 * ha = actual ha whose done queue will contain the command
516 * returned by firmware.
517 * cmd = Scsi Command to wait on.
518 * flag = Abort/Reset(Bus or Device Reset)
519 *
520 * Return:
521 * Not Found : 0
522 * Found : 1
523 */
524 static int
525 qla2x00_eh_wait_on_command(scsi_qla_host_t *ha, struct scsi_cmnd *cmd)
526 {
527 #define ABORT_POLLING_PERIOD 1000
528 #define ABORT_WAIT_ITER ((10 * 1000) / (ABORT_POLLING_PERIOD))
529 unsigned long wait_iter = ABORT_WAIT_ITER;
530 int ret = QLA_SUCCESS;
531
532 while (CMD_SP(cmd)) {
533 msleep(ABORT_POLLING_PERIOD);
534
535 if (--wait_iter)
536 break;
537 }
538 if (CMD_SP(cmd))
539 ret = QLA_FUNCTION_FAILED;
540
541 return ret;
542 }
543
544 /*
545 * qla2x00_wait_for_hba_online
546 * Wait till the HBA is online after going through
547 * <= MAX_RETRIES_OF_ISP_ABORT or
548 * finally HBA is disabled ie marked offline
549 *
550 * Input:
551 * ha - pointer to host adapter structure
552 *
553 * Note:
554 * Does context switching-Release SPIN_LOCK
555 * (if any) before calling this routine.
556 *
557 * Return:
558 * Success (Adapter is online) : 0
559 * Failed (Adapter is offline/disabled) : 1
560 */
561 int
562 qla2x00_wait_for_hba_online(scsi_qla_host_t *ha)
563 {
564 int return_status;
565 unsigned long wait_online;
566 scsi_qla_host_t *pha = to_qla_parent(ha);
567
568 wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
569 while (((test_bit(ISP_ABORT_NEEDED, &pha->dpc_flags)) ||
570 test_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags) ||
571 test_bit(ISP_ABORT_RETRY, &pha->dpc_flags) ||
572 pha->dpc_active) && time_before(jiffies, wait_online)) {
573
574 msleep(1000);
575 }
576 if (pha->flags.online)
577 return_status = QLA_SUCCESS;
578 else
579 return_status = QLA_FUNCTION_FAILED;
580
581 return (return_status);
582 }
583
584 /*
585 * qla2x00_wait_for_loop_ready
586 * Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
587 * to be in LOOP_READY state.
588 * Input:
589 * ha - pointer to host adapter structure
590 *
591 * Note:
592 * Does context switching-Release SPIN_LOCK
593 * (if any) before calling this routine.
594 *
595 *
596 * Return:
597 * Success (LOOP_READY) : 0
598 * Failed (LOOP_NOT_READY) : 1
599 */
600 static inline int
601 qla2x00_wait_for_loop_ready(scsi_qla_host_t *ha)
602 {
603 int return_status = QLA_SUCCESS;
604 unsigned long loop_timeout ;
605 scsi_qla_host_t *pha = to_qla_parent(ha);
606
607 /* wait for 5 min at the max for loop to be ready */
608 loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ);
609
610 while ((!atomic_read(&pha->loop_down_timer) &&
611 atomic_read(&pha->loop_state) == LOOP_DOWN) ||
612 atomic_read(&pha->loop_state) != LOOP_READY) {
613 if (atomic_read(&pha->loop_state) == LOOP_DEAD) {
614 return_status = QLA_FUNCTION_FAILED;
615 break;
616 }
617 msleep(1000);
618 if (time_after_eq(jiffies, loop_timeout)) {
619 return_status = QLA_FUNCTION_FAILED;
620 break;
621 }
622 }
623 return (return_status);
624 }
625
626 void
627 qla2x00_abort_fcport_cmds(fc_port_t *fcport)
628 {
629 int cnt;
630 unsigned long flags;
631 srb_t *sp;
632 scsi_qla_host_t *ha = fcport->ha;
633 scsi_qla_host_t *pha = to_qla_parent(ha);
634
635 spin_lock_irqsave(&pha->hardware_lock, flags);
636 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
637 sp = pha->outstanding_cmds[cnt];
638 if (!sp)
639 continue;
640 if (sp->fcport != fcport)
641 continue;
642
643 spin_unlock_irqrestore(&pha->hardware_lock, flags);
644 if (ha->isp_ops->abort_command(ha, sp)) {
645 DEBUG2(qla_printk(KERN_WARNING, ha,
646 "Abort failed -- %lx\n", sp->cmd->serial_number));
647 } else {
648 if (qla2x00_eh_wait_on_command(ha, sp->cmd) !=
649 QLA_SUCCESS)
650 DEBUG2(qla_printk(KERN_WARNING, ha,
651 "Abort failed while waiting -- %lx\n",
652 sp->cmd->serial_number));
653
654 }
655 spin_lock_irqsave(&pha->hardware_lock, flags);
656 }
657 spin_unlock_irqrestore(&pha->hardware_lock, flags);
658 }
659
660 static void
661 qla2x00_block_error_handler(struct scsi_cmnd *cmnd)
662 {
663 struct Scsi_Host *shost = cmnd->device->host;
664 struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device));
665 unsigned long flags;
666
667 spin_lock_irqsave(shost->host_lock, flags);
668 while (rport->port_state == FC_PORTSTATE_BLOCKED) {
669 spin_unlock_irqrestore(shost->host_lock, flags);
670 msleep(1000);
671 spin_lock_irqsave(shost->host_lock, flags);
672 }
673 spin_unlock_irqrestore(shost->host_lock, flags);
674 return;
675 }
676
677 /**************************************************************************
678 * qla2xxx_eh_abort
679 *
680 * Description:
681 * The abort function will abort the specified command.
682 *
683 * Input:
684 * cmd = Linux SCSI command packet to be aborted.
685 *
686 * Returns:
687 * Either SUCCESS or FAILED.
688 *
689 * Note:
690 * Only return FAILED if command not returned by firmware.
691 **************************************************************************/
692 static int
693 qla2xxx_eh_abort(struct scsi_cmnd *cmd)
694 {
695 scsi_qla_host_t *ha = shost_priv(cmd->device->host);
696 srb_t *sp;
697 int ret, i;
698 unsigned int id, lun;
699 unsigned long serial;
700 unsigned long flags;
701 int wait = 0;
702 scsi_qla_host_t *pha = to_qla_parent(ha);
703
704 qla2x00_block_error_handler(cmd);
705
706 if (!CMD_SP(cmd))
707 return SUCCESS;
708
709 ret = SUCCESS;
710
711 id = cmd->device->id;
712 lun = cmd->device->lun;
713 serial = cmd->serial_number;
714
715 /* Check active list for command command. */
716 spin_lock_irqsave(&pha->hardware_lock, flags);
717 for (i = 1; i < MAX_OUTSTANDING_COMMANDS; i++) {
718 sp = pha->outstanding_cmds[i];
719
720 if (sp == NULL)
721 continue;
722
723 if (sp->cmd != cmd)
724 continue;
725
726 DEBUG2(printk("%s(%ld): aborting sp %p from RISC. pid=%ld.\n",
727 __func__, ha->host_no, sp, serial));
728
729 spin_unlock_irqrestore(&pha->hardware_lock, flags);
730 if (ha->isp_ops->abort_command(ha, sp)) {
731 DEBUG2(printk("%s(%ld): abort_command "
732 "mbx failed.\n", __func__, ha->host_no));
733 } else {
734 DEBUG3(printk("%s(%ld): abort_command "
735 "mbx success.\n", __func__, ha->host_no));
736 wait = 1;
737 }
738 spin_lock_irqsave(&pha->hardware_lock, flags);
739
740 break;
741 }
742 spin_unlock_irqrestore(&pha->hardware_lock, flags);
743
744 /* Wait for the command to be returned. */
745 if (wait) {
746 if (qla2x00_eh_wait_on_command(ha, cmd) != QLA_SUCCESS) {
747 qla_printk(KERN_ERR, ha,
748 "scsi(%ld:%d:%d): Abort handler timed out -- %lx "
749 "%x.\n", ha->host_no, id, lun, serial, ret);
750 ret = FAILED;
751 }
752 }
753
754 qla_printk(KERN_INFO, ha,
755 "scsi(%ld:%d:%d): Abort command issued -- %d %lx %x.\n",
756 ha->host_no, id, lun, wait, serial, ret);
757
758 return ret;
759 }
760
761 enum nexus_wait_type {
762 WAIT_HOST = 0,
763 WAIT_TARGET,
764 WAIT_LUN,
765 };
766
767 static int
768 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *ha, unsigned int t,
769 unsigned int l, enum nexus_wait_type type)
770 {
771 int cnt, match, status;
772 srb_t *sp;
773 unsigned long flags;
774 scsi_qla_host_t *pha = to_qla_parent(ha);
775
776 status = QLA_SUCCESS;
777 spin_lock_irqsave(&pha->hardware_lock, flags);
778 for (cnt = 1; status == QLA_SUCCESS && cnt < MAX_OUTSTANDING_COMMANDS;
779 cnt++) {
780 sp = pha->outstanding_cmds[cnt];
781 if (!sp)
782 continue;
783 if (ha->vp_idx != sp->ha->vp_idx)
784 continue;
785 match = 0;
786 switch (type) {
787 case WAIT_HOST:
788 match = 1;
789 break;
790 case WAIT_TARGET:
791 match = sp->cmd->device->id == t;
792 break;
793 case WAIT_LUN:
794 match = (sp->cmd->device->id == t &&
795 sp->cmd->device->lun == l);
796 break;
797 }
798 if (!match)
799 continue;
800
801 spin_unlock_irqrestore(&pha->hardware_lock, flags);
802 status = qla2x00_eh_wait_on_command(ha, sp->cmd);
803 spin_lock_irqsave(&pha->hardware_lock, flags);
804 }
805 spin_unlock_irqrestore(&pha->hardware_lock, flags);
806
807 return status;
808 }
809
810 static char *reset_errors[] = {
811 "HBA not online",
812 "HBA not ready",
813 "Task management failed",
814 "Waiting for command completions",
815 };
816
817 static int
818 __qla2xxx_eh_generic_reset(char *name, enum nexus_wait_type type,
819 struct scsi_cmnd *cmd, int (*do_reset)(struct fc_port *, unsigned int))
820 {
821 scsi_qla_host_t *ha = shost_priv(cmd->device->host);
822 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
823 int err;
824
825 qla2x00_block_error_handler(cmd);
826
827 if (!fcport)
828 return FAILED;
829
830 qla_printk(KERN_INFO, ha, "scsi(%ld:%d:%d): %s RESET ISSUED.\n",
831 ha->host_no, cmd->device->id, cmd->device->lun, name);
832
833 err = 0;
834 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
835 goto eh_reset_failed;
836 err = 1;
837 if (qla2x00_wait_for_loop_ready(ha) != QLA_SUCCESS)
838 goto eh_reset_failed;
839 err = 2;
840 if (do_reset(fcport, cmd->device->lun) != QLA_SUCCESS)
841 goto eh_reset_failed;
842 err = 3;
843 if (qla2x00_eh_wait_for_pending_commands(ha, cmd->device->id,
844 cmd->device->lun, type) != QLA_SUCCESS)
845 goto eh_reset_failed;
846
847 qla_printk(KERN_INFO, ha, "scsi(%ld:%d:%d): %s RESET SUCCEEDED.\n",
848 ha->host_no, cmd->device->id, cmd->device->lun, name);
849
850 return SUCCESS;
851
852 eh_reset_failed:
853 qla_printk(KERN_INFO, ha, "scsi(%ld:%d:%d): %s RESET FAILED: %s.\n",
854 ha->host_no, cmd->device->id, cmd->device->lun, name,
855 reset_errors[err]);
856 return FAILED;
857 }
858
859 static int
860 qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
861 {
862 scsi_qla_host_t *ha = shost_priv(cmd->device->host);
863
864 return __qla2xxx_eh_generic_reset("DEVICE", WAIT_LUN, cmd,
865 ha->isp_ops->lun_reset);
866 }
867
868 static int
869 qla2xxx_eh_target_reset(struct scsi_cmnd *cmd)
870 {
871 scsi_qla_host_t *ha = shost_priv(cmd->device->host);
872
873 return __qla2xxx_eh_generic_reset("TARGET", WAIT_TARGET, cmd,
874 ha->isp_ops->target_reset);
875 }
876
877 /**************************************************************************
878 * qla2xxx_eh_bus_reset
879 *
880 * Description:
881 * The bus reset function will reset the bus and abort any executing
882 * commands.
883 *
884 * Input:
885 * cmd = Linux SCSI command packet of the command that cause the
886 * bus reset.
887 *
888 * Returns:
889 * SUCCESS/FAILURE (defined as macro in scsi.h).
890 *
891 **************************************************************************/
892 static int
893 qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
894 {
895 scsi_qla_host_t *ha = shost_priv(cmd->device->host);
896 scsi_qla_host_t *pha = to_qla_parent(ha);
897 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
898 int ret = FAILED;
899 unsigned int id, lun;
900 unsigned long serial;
901
902 qla2x00_block_error_handler(cmd);
903
904 id = cmd->device->id;
905 lun = cmd->device->lun;
906 serial = cmd->serial_number;
907
908 if (!fcport)
909 return ret;
910
911 qla_printk(KERN_INFO, ha,
912 "scsi(%ld:%d:%d): LOOP RESET ISSUED.\n", ha->host_no, id, lun);
913
914 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS) {
915 DEBUG2(printk("%s failed:board disabled\n",__func__));
916 goto eh_bus_reset_done;
917 }
918
919 if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
920 if (qla2x00_loop_reset(ha) == QLA_SUCCESS)
921 ret = SUCCESS;
922 }
923 if (ret == FAILED)
924 goto eh_bus_reset_done;
925
926 /* Flush outstanding commands. */
927 if (qla2x00_eh_wait_for_pending_commands(pha, 0, 0, WAIT_HOST) !=
928 QLA_SUCCESS)
929 ret = FAILED;
930
931 eh_bus_reset_done:
932 qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
933 (ret == FAILED) ? "failed" : "succeded");
934
935 return ret;
936 }
937
938 /**************************************************************************
939 * qla2xxx_eh_host_reset
940 *
941 * Description:
942 * The reset function will reset the Adapter.
943 *
944 * Input:
945 * cmd = Linux SCSI command packet of the command that cause the
946 * adapter reset.
947 *
948 * Returns:
949 * Either SUCCESS or FAILED.
950 *
951 * Note:
952 **************************************************************************/
953 static int
954 qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
955 {
956 scsi_qla_host_t *ha = shost_priv(cmd->device->host);
957 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
958 int ret = FAILED;
959 unsigned int id, lun;
960 unsigned long serial;
961 scsi_qla_host_t *pha = to_qla_parent(ha);
962
963 qla2x00_block_error_handler(cmd);
964
965 id = cmd->device->id;
966 lun = cmd->device->lun;
967 serial = cmd->serial_number;
968
969 if (!fcport)
970 return ret;
971
972 qla_printk(KERN_INFO, ha,
973 "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", ha->host_no, id, lun);
974
975 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
976 goto eh_host_reset_lock;
977
978 /*
979 * Fixme-may be dpc thread is active and processing
980 * loop_resync,so wait a while for it to
981 * be completed and then issue big hammer.Otherwise
982 * it may cause I/O failure as big hammer marks the
983 * devices as lost kicking of the port_down_timer
984 * while dpc is stuck for the mailbox to complete.
985 */
986 qla2x00_wait_for_loop_ready(ha);
987 set_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags);
988 if (qla2x00_abort_isp(pha)) {
989 clear_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags);
990 /* failed. schedule dpc to try */
991 set_bit(ISP_ABORT_NEEDED, &pha->dpc_flags);
992
993 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
994 goto eh_host_reset_lock;
995 }
996 clear_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags);
997
998 /* Waiting for our command in done_queue to be returned to OS.*/
999 if (qla2x00_eh_wait_for_pending_commands(pha, 0, 0, WAIT_HOST) ==
1000 QLA_SUCCESS)
1001 ret = SUCCESS;
1002
1003 if (ha->parent)
1004 qla2x00_vp_abort_isp(ha);
1005
1006 eh_host_reset_lock:
1007 qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
1008 (ret == FAILED) ? "failed" : "succeded");
1009
1010 return ret;
1011 }
1012
1013 /*
1014 * qla2x00_loop_reset
1015 * Issue loop reset.
1016 *
1017 * Input:
1018 * ha = adapter block pointer.
1019 *
1020 * Returns:
1021 * 0 = success
1022 */
1023 int
1024 qla2x00_loop_reset(scsi_qla_host_t *ha)
1025 {
1026 int ret;
1027 struct fc_port *fcport;
1028
1029 if (ha->flags.enable_lip_full_login) {
1030 ret = qla2x00_full_login_lip(ha);
1031 if (ret != QLA_SUCCESS) {
1032 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1033 "full_login_lip=%d.\n", __func__, ha->host_no,
1034 ret));
1035 }
1036 atomic_set(&ha->loop_state, LOOP_DOWN);
1037 atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
1038 qla2x00_mark_all_devices_lost(ha, 0);
1039 qla2x00_wait_for_loop_ready(ha);
1040 }
1041
1042 if (ha->flags.enable_lip_reset) {
1043 ret = qla2x00_lip_reset(ha);
1044 if (ret != QLA_SUCCESS) {
1045 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1046 "lip_reset=%d.\n", __func__, ha->host_no, ret));
1047 }
1048 qla2x00_wait_for_loop_ready(ha);
1049 }
1050
1051 if (ha->flags.enable_target_reset) {
1052 list_for_each_entry(fcport, &ha->fcports, list) {
1053 if (fcport->port_type != FCT_TARGET)
1054 continue;
1055
1056 ret = ha->isp_ops->target_reset(fcport, 0);
1057 if (ret != QLA_SUCCESS) {
1058 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1059 "target_reset=%d d_id=%x.\n", __func__,
1060 ha->host_no, ret, fcport->d_id.b24));
1061 }
1062 }
1063 }
1064
1065 /* Issue marker command only when we are going to start the I/O */
1066 ha->marker_needed = 1;
1067
1068 return QLA_SUCCESS;
1069 }
1070
1071 void
1072 qla2x00_abort_all_cmds(scsi_qla_host_t *ha, int res)
1073 {
1074 int cnt;
1075 unsigned long flags;
1076 srb_t *sp;
1077
1078 spin_lock_irqsave(&ha->hardware_lock, flags);
1079 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
1080 sp = ha->outstanding_cmds[cnt];
1081 if (sp) {
1082 ha->outstanding_cmds[cnt] = NULL;
1083 sp->flags = 0;
1084 sp->cmd->result = res;
1085 sp->cmd->host_scribble = (unsigned char *)NULL;
1086 qla2x00_sp_compl(ha, sp);
1087 }
1088 }
1089 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1090 }
1091
1092 static int
1093 qla2xxx_slave_alloc(struct scsi_device *sdev)
1094 {
1095 struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1096
1097 if (!rport || fc_remote_port_chkready(rport))
1098 return -ENXIO;
1099
1100 sdev->hostdata = *(fc_port_t **)rport->dd_data;
1101
1102 return 0;
1103 }
1104
1105 static int
1106 qla2xxx_slave_configure(struct scsi_device *sdev)
1107 {
1108 scsi_qla_host_t *ha = shost_priv(sdev->host);
1109 struct fc_rport *rport = starget_to_rport(sdev->sdev_target);
1110
1111 if (sdev->tagged_supported)
1112 scsi_activate_tcq(sdev, ha->max_q_depth);
1113 else
1114 scsi_deactivate_tcq(sdev, ha->max_q_depth);
1115
1116 rport->dev_loss_tmo = ha->port_down_retry_count;
1117
1118 return 0;
1119 }
1120
1121 static void
1122 qla2xxx_slave_destroy(struct scsi_device *sdev)
1123 {
1124 sdev->hostdata = NULL;
1125 }
1126
1127 static int
1128 qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth)
1129 {
1130 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1131 return sdev->queue_depth;
1132 }
1133
1134 static int
1135 qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1136 {
1137 if (sdev->tagged_supported) {
1138 scsi_set_tag_type(sdev, tag_type);
1139 if (tag_type)
1140 scsi_activate_tcq(sdev, sdev->queue_depth);
1141 else
1142 scsi_deactivate_tcq(sdev, sdev->queue_depth);
1143 } else
1144 tag_type = 0;
1145
1146 return tag_type;
1147 }
1148
1149 /**
1150 * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1151 * @ha: HA context
1152 *
1153 * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1154 * supported addressing method.
1155 */
1156 static void
1157 qla2x00_config_dma_addressing(scsi_qla_host_t *ha)
1158 {
1159 /* Assume a 32bit DMA mask. */
1160 ha->flags.enable_64bit_addressing = 0;
1161
1162 if (!dma_set_mask(&ha->pdev->dev, DMA_64BIT_MASK)) {
1163 /* Any upper-dword bits set? */
1164 if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1165 !pci_set_consistent_dma_mask(ha->pdev, DMA_64BIT_MASK)) {
1166 /* Ok, a 64bit DMA mask is applicable. */
1167 ha->flags.enable_64bit_addressing = 1;
1168 ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64;
1169 ha->isp_ops->build_iocbs = qla2x00_build_scsi_iocbs_64;
1170 return;
1171 }
1172 }
1173
1174 dma_set_mask(&ha->pdev->dev, DMA_32BIT_MASK);
1175 pci_set_consistent_dma_mask(ha->pdev, DMA_32BIT_MASK);
1176 }
1177
1178 static void
1179 qla2x00_enable_intrs(scsi_qla_host_t *ha)
1180 {
1181 unsigned long flags = 0;
1182 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1183
1184 spin_lock_irqsave(&ha->hardware_lock, flags);
1185 ha->interrupts_on = 1;
1186 /* enable risc and host interrupts */
1187 WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1188 RD_REG_WORD(&reg->ictrl);
1189 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1190
1191 }
1192
1193 static void
1194 qla2x00_disable_intrs(scsi_qla_host_t *ha)
1195 {
1196 unsigned long flags = 0;
1197 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1198
1199 spin_lock_irqsave(&ha->hardware_lock, flags);
1200 ha->interrupts_on = 0;
1201 /* disable risc and host interrupts */
1202 WRT_REG_WORD(&reg->ictrl, 0);
1203 RD_REG_WORD(&reg->ictrl);
1204 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1205 }
1206
1207 static void
1208 qla24xx_enable_intrs(scsi_qla_host_t *ha)
1209 {
1210 unsigned long flags = 0;
1211 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1212
1213 spin_lock_irqsave(&ha->hardware_lock, flags);
1214 ha->interrupts_on = 1;
1215 WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1216 RD_REG_DWORD(&reg->ictrl);
1217 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1218 }
1219
1220 static void
1221 qla24xx_disable_intrs(scsi_qla_host_t *ha)
1222 {
1223 unsigned long flags = 0;
1224 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1225
1226 spin_lock_irqsave(&ha->hardware_lock, flags);
1227 ha->interrupts_on = 0;
1228 WRT_REG_DWORD(&reg->ictrl, 0);
1229 RD_REG_DWORD(&reg->ictrl);
1230 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1231 }
1232
1233 static struct isp_operations qla2100_isp_ops = {
1234 .pci_config = qla2100_pci_config,
1235 .reset_chip = qla2x00_reset_chip,
1236 .chip_diag = qla2x00_chip_diag,
1237 .config_rings = qla2x00_config_rings,
1238 .reset_adapter = qla2x00_reset_adapter,
1239 .nvram_config = qla2x00_nvram_config,
1240 .update_fw_options = qla2x00_update_fw_options,
1241 .load_risc = qla2x00_load_risc,
1242 .pci_info_str = qla2x00_pci_info_str,
1243 .fw_version_str = qla2x00_fw_version_str,
1244 .intr_handler = qla2100_intr_handler,
1245 .enable_intrs = qla2x00_enable_intrs,
1246 .disable_intrs = qla2x00_disable_intrs,
1247 .abort_command = qla2x00_abort_command,
1248 .target_reset = qla2x00_abort_target,
1249 .lun_reset = qla2x00_lun_reset,
1250 .fabric_login = qla2x00_login_fabric,
1251 .fabric_logout = qla2x00_fabric_logout,
1252 .calc_req_entries = qla2x00_calc_iocbs_32,
1253 .build_iocbs = qla2x00_build_scsi_iocbs_32,
1254 .prep_ms_iocb = qla2x00_prep_ms_iocb,
1255 .prep_ms_fdmi_iocb = qla2x00_prep_ms_fdmi_iocb,
1256 .read_nvram = qla2x00_read_nvram_data,
1257 .write_nvram = qla2x00_write_nvram_data,
1258 .fw_dump = qla2100_fw_dump,
1259 .beacon_on = NULL,
1260 .beacon_off = NULL,
1261 .beacon_blink = NULL,
1262 .read_optrom = qla2x00_read_optrom_data,
1263 .write_optrom = qla2x00_write_optrom_data,
1264 .get_flash_version = qla2x00_get_flash_version,
1265 };
1266
1267 static struct isp_operations qla2300_isp_ops = {
1268 .pci_config = qla2300_pci_config,
1269 .reset_chip = qla2x00_reset_chip,
1270 .chip_diag = qla2x00_chip_diag,
1271 .config_rings = qla2x00_config_rings,
1272 .reset_adapter = qla2x00_reset_adapter,
1273 .nvram_config = qla2x00_nvram_config,
1274 .update_fw_options = qla2x00_update_fw_options,
1275 .load_risc = qla2x00_load_risc,
1276 .pci_info_str = qla2x00_pci_info_str,
1277 .fw_version_str = qla2x00_fw_version_str,
1278 .intr_handler = qla2300_intr_handler,
1279 .enable_intrs = qla2x00_enable_intrs,
1280 .disable_intrs = qla2x00_disable_intrs,
1281 .abort_command = qla2x00_abort_command,
1282 .target_reset = qla2x00_abort_target,
1283 .lun_reset = qla2x00_lun_reset,
1284 .fabric_login = qla2x00_login_fabric,
1285 .fabric_logout = qla2x00_fabric_logout,
1286 .calc_req_entries = qla2x00_calc_iocbs_32,
1287 .build_iocbs = qla2x00_build_scsi_iocbs_32,
1288 .prep_ms_iocb = qla2x00_prep_ms_iocb,
1289 .prep_ms_fdmi_iocb = qla2x00_prep_ms_fdmi_iocb,
1290 .read_nvram = qla2x00_read_nvram_data,
1291 .write_nvram = qla2x00_write_nvram_data,
1292 .fw_dump = qla2300_fw_dump,
1293 .beacon_on = qla2x00_beacon_on,
1294 .beacon_off = qla2x00_beacon_off,
1295 .beacon_blink = qla2x00_beacon_blink,
1296 .read_optrom = qla2x00_read_optrom_data,
1297 .write_optrom = qla2x00_write_optrom_data,
1298 .get_flash_version = qla2x00_get_flash_version,
1299 };
1300
1301 static struct isp_operations qla24xx_isp_ops = {
1302 .pci_config = qla24xx_pci_config,
1303 .reset_chip = qla24xx_reset_chip,
1304 .chip_diag = qla24xx_chip_diag,
1305 .config_rings = qla24xx_config_rings,
1306 .reset_adapter = qla24xx_reset_adapter,
1307 .nvram_config = qla24xx_nvram_config,
1308 .update_fw_options = qla24xx_update_fw_options,
1309 .load_risc = qla24xx_load_risc,
1310 .pci_info_str = qla24xx_pci_info_str,
1311 .fw_version_str = qla24xx_fw_version_str,
1312 .intr_handler = qla24xx_intr_handler,
1313 .enable_intrs = qla24xx_enable_intrs,
1314 .disable_intrs = qla24xx_disable_intrs,
1315 .abort_command = qla24xx_abort_command,
1316 .target_reset = qla24xx_abort_target,
1317 .lun_reset = qla24xx_lun_reset,
1318 .fabric_login = qla24xx_login_fabric,
1319 .fabric_logout = qla24xx_fabric_logout,
1320 .calc_req_entries = NULL,
1321 .build_iocbs = NULL,
1322 .prep_ms_iocb = qla24xx_prep_ms_iocb,
1323 .prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb,
1324 .read_nvram = qla24xx_read_nvram_data,
1325 .write_nvram = qla24xx_write_nvram_data,
1326 .fw_dump = qla24xx_fw_dump,
1327 .beacon_on = qla24xx_beacon_on,
1328 .beacon_off = qla24xx_beacon_off,
1329 .beacon_blink = qla24xx_beacon_blink,
1330 .read_optrom = qla24xx_read_optrom_data,
1331 .write_optrom = qla24xx_write_optrom_data,
1332 .get_flash_version = qla24xx_get_flash_version,
1333 };
1334
1335 static struct isp_operations qla25xx_isp_ops = {
1336 .pci_config = qla25xx_pci_config,
1337 .reset_chip = qla24xx_reset_chip,
1338 .chip_diag = qla24xx_chip_diag,
1339 .config_rings = qla24xx_config_rings,
1340 .reset_adapter = qla24xx_reset_adapter,
1341 .nvram_config = qla24xx_nvram_config,
1342 .update_fw_options = qla24xx_update_fw_options,
1343 .load_risc = qla24xx_load_risc,
1344 .pci_info_str = qla24xx_pci_info_str,
1345 .fw_version_str = qla24xx_fw_version_str,
1346 .intr_handler = qla24xx_intr_handler,
1347 .enable_intrs = qla24xx_enable_intrs,
1348 .disable_intrs = qla24xx_disable_intrs,
1349 .abort_command = qla24xx_abort_command,
1350 .target_reset = qla24xx_abort_target,
1351 .lun_reset = qla24xx_lun_reset,
1352 .fabric_login = qla24xx_login_fabric,
1353 .fabric_logout = qla24xx_fabric_logout,
1354 .calc_req_entries = NULL,
1355 .build_iocbs = NULL,
1356 .prep_ms_iocb = qla24xx_prep_ms_iocb,
1357 .prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb,
1358 .read_nvram = qla25xx_read_nvram_data,
1359 .write_nvram = qla25xx_write_nvram_data,
1360 .fw_dump = qla25xx_fw_dump,
1361 .beacon_on = qla24xx_beacon_on,
1362 .beacon_off = qla24xx_beacon_off,
1363 .beacon_blink = qla24xx_beacon_blink,
1364 .read_optrom = qla25xx_read_optrom_data,
1365 .write_optrom = qla24xx_write_optrom_data,
1366 .get_flash_version = qla24xx_get_flash_version,
1367 };
1368
1369 static inline void
1370 qla2x00_set_isp_flags(scsi_qla_host_t *ha)
1371 {
1372 ha->device_type = DT_EXTENDED_IDS;
1373 switch (ha->pdev->device) {
1374 case PCI_DEVICE_ID_QLOGIC_ISP2100:
1375 ha->device_type |= DT_ISP2100;
1376 ha->device_type &= ~DT_EXTENDED_IDS;
1377 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1378 break;
1379 case PCI_DEVICE_ID_QLOGIC_ISP2200:
1380 ha->device_type |= DT_ISP2200;
1381 ha->device_type &= ~DT_EXTENDED_IDS;
1382 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1383 break;
1384 case PCI_DEVICE_ID_QLOGIC_ISP2300:
1385 ha->device_type |= DT_ISP2300;
1386 ha->device_type |= DT_ZIO_SUPPORTED;
1387 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1388 break;
1389 case PCI_DEVICE_ID_QLOGIC_ISP2312:
1390 ha->device_type |= DT_ISP2312;
1391 ha->device_type |= DT_ZIO_SUPPORTED;
1392 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1393 break;
1394 case PCI_DEVICE_ID_QLOGIC_ISP2322:
1395 ha->device_type |= DT_ISP2322;
1396 ha->device_type |= DT_ZIO_SUPPORTED;
1397 if (ha->pdev->subsystem_vendor == 0x1028 &&
1398 ha->pdev->subsystem_device == 0x0170)
1399 ha->device_type |= DT_OEM_001;
1400 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1401 break;
1402 case PCI_DEVICE_ID_QLOGIC_ISP6312:
1403 ha->device_type |= DT_ISP6312;
1404 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1405 break;
1406 case PCI_DEVICE_ID_QLOGIC_ISP6322:
1407 ha->device_type |= DT_ISP6322;
1408 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1409 break;
1410 case PCI_DEVICE_ID_QLOGIC_ISP2422:
1411 ha->device_type |= DT_ISP2422;
1412 ha->device_type |= DT_ZIO_SUPPORTED;
1413 ha->device_type |= DT_FWI2;
1414 ha->device_type |= DT_IIDMA;
1415 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1416 break;
1417 case PCI_DEVICE_ID_QLOGIC_ISP2432:
1418 ha->device_type |= DT_ISP2432;
1419 ha->device_type |= DT_ZIO_SUPPORTED;
1420 ha->device_type |= DT_FWI2;
1421 ha->device_type |= DT_IIDMA;
1422 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1423 break;
1424 case PCI_DEVICE_ID_QLOGIC_ISP8432:
1425 ha->device_type |= DT_ISP8432;
1426 ha->device_type |= DT_ZIO_SUPPORTED;
1427 ha->device_type |= DT_FWI2;
1428 ha->device_type |= DT_IIDMA;
1429 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1430 break;
1431 case PCI_DEVICE_ID_QLOGIC_ISP5422:
1432 ha->device_type |= DT_ISP5422;
1433 ha->device_type |= DT_FWI2;
1434 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1435 break;
1436 case PCI_DEVICE_ID_QLOGIC_ISP5432:
1437 ha->device_type |= DT_ISP5432;
1438 ha->device_type |= DT_FWI2;
1439 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1440 break;
1441 case PCI_DEVICE_ID_QLOGIC_ISP2532:
1442 ha->device_type |= DT_ISP2532;
1443 ha->device_type |= DT_ZIO_SUPPORTED;
1444 ha->device_type |= DT_FWI2;
1445 ha->device_type |= DT_IIDMA;
1446 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1447 break;
1448 }
1449 }
1450
1451 static int
1452 qla2x00_iospace_config(scsi_qla_host_t *ha)
1453 {
1454 resource_size_t pio;
1455
1456 if (pci_request_selected_regions(ha->pdev, ha->bars,
1457 QLA2XXX_DRIVER_NAME)) {
1458 qla_printk(KERN_WARNING, ha,
1459 "Failed to reserve PIO/MMIO regions (%s)\n",
1460 pci_name(ha->pdev));
1461
1462 goto iospace_error_exit;
1463 }
1464 if (!(ha->bars & 1))
1465 goto skip_pio;
1466
1467 /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1468 pio = pci_resource_start(ha->pdev, 0);
1469 if (pci_resource_flags(ha->pdev, 0) & IORESOURCE_IO) {
1470 if (pci_resource_len(ha->pdev, 0) < MIN_IOBASE_LEN) {
1471 qla_printk(KERN_WARNING, ha,
1472 "Invalid PCI I/O region size (%s)...\n",
1473 pci_name(ha->pdev));
1474 pio = 0;
1475 }
1476 } else {
1477 qla_printk(KERN_WARNING, ha,
1478 "region #0 not a PIO resource (%s)...\n",
1479 pci_name(ha->pdev));
1480 pio = 0;
1481 }
1482 ha->pio_address = pio;
1483
1484 skip_pio:
1485 /* Use MMIO operations for all accesses. */
1486 if (!(pci_resource_flags(ha->pdev, 1) & IORESOURCE_MEM)) {
1487 qla_printk(KERN_ERR, ha,
1488 "region #1 not an MMIO resource (%s), aborting\n",
1489 pci_name(ha->pdev));
1490 goto iospace_error_exit;
1491 }
1492 if (pci_resource_len(ha->pdev, 1) < MIN_IOBASE_LEN) {
1493 qla_printk(KERN_ERR, ha,
1494 "Invalid PCI mem region size (%s), aborting\n",
1495 pci_name(ha->pdev));
1496 goto iospace_error_exit;
1497 }
1498
1499 ha->iobase = ioremap(pci_resource_start(ha->pdev, 1), MIN_IOBASE_LEN);
1500 if (!ha->iobase) {
1501 qla_printk(KERN_ERR, ha,
1502 "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
1503
1504 goto iospace_error_exit;
1505 }
1506
1507 return (0);
1508
1509 iospace_error_exit:
1510 return (-ENOMEM);
1511 }
1512
1513 static void
1514 qla2xxx_scan_start(struct Scsi_Host *shost)
1515 {
1516 scsi_qla_host_t *ha = shost_priv(shost);
1517
1518 set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
1519 set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
1520 set_bit(RSCN_UPDATE, &ha->dpc_flags);
1521 }
1522
1523 static int
1524 qla2xxx_scan_finished(struct Scsi_Host *shost, unsigned long time)
1525 {
1526 scsi_qla_host_t *ha = shost_priv(shost);
1527
1528 if (!ha->host)
1529 return 1;
1530 if (time > ha->loop_reset_delay * HZ)
1531 return 1;
1532
1533 return atomic_read(&ha->loop_state) == LOOP_READY;
1534 }
1535
1536 /*
1537 * PCI driver interface
1538 */
1539 static int __devinit
1540 qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
1541 {
1542 int ret = -ENODEV;
1543 struct Scsi_Host *host;
1544 scsi_qla_host_t *ha;
1545 char pci_info[30];
1546 char fw_str[30];
1547 struct scsi_host_template *sht;
1548 int bars, mem_only = 0;
1549
1550 bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO);
1551 sht = &qla2x00_driver_template;
1552 if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
1553 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432 ||
1554 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8432 ||
1555 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5422 ||
1556 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5432 ||
1557 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2532) {
1558 bars = pci_select_bars(pdev, IORESOURCE_MEM);
1559 sht = &qla24xx_driver_template;
1560 mem_only = 1;
1561 }
1562
1563 if (mem_only) {
1564 if (pci_enable_device_mem(pdev))
1565 goto probe_out;
1566 } else {
1567 if (pci_enable_device(pdev))
1568 goto probe_out;
1569 }
1570
1571 if (pci_find_aer_capability(pdev))
1572 if (pci_enable_pcie_error_reporting(pdev))
1573 goto probe_out;
1574
1575 host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
1576 if (host == NULL) {
1577 printk(KERN_WARNING
1578 "qla2xxx: Couldn't allocate host from scsi layer!\n");
1579 goto probe_disable_device;
1580 }
1581
1582 /* Clear our data area */
1583 ha = shost_priv(host);
1584 memset(ha, 0, sizeof(scsi_qla_host_t));
1585
1586 ha->pdev = pdev;
1587 ha->host = host;
1588 ha->host_no = host->host_no;
1589 sprintf(ha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, ha->host_no);
1590 ha->parent = NULL;
1591 ha->bars = bars;
1592 ha->mem_only = mem_only;
1593 spin_lock_init(&ha->hardware_lock);
1594
1595 /* Set ISP-type information. */
1596 qla2x00_set_isp_flags(ha);
1597
1598 /* Configure PCI I/O space */
1599 ret = qla2x00_iospace_config(ha);
1600 if (ret)
1601 goto probe_failed;
1602
1603 qla_printk(KERN_INFO, ha,
1604 "Found an ISP%04X, irq %d, iobase 0x%p\n", pdev->device, pdev->irq,
1605 ha->iobase);
1606
1607 ha->prev_topology = 0;
1608 ha->init_cb_size = sizeof(init_cb_t);
1609 ha->mgmt_svr_loop_id = MANAGEMENT_SERVER + ha->vp_idx;
1610 ha->link_data_rate = PORT_SPEED_UNKNOWN;
1611 ha->optrom_size = OPTROM_SIZE_2300;
1612
1613 ha->max_q_depth = MAX_Q_DEPTH;
1614 if (ql2xmaxqdepth != 0 && ql2xmaxqdepth <= 0xffffU)
1615 ha->max_q_depth = ql2xmaxqdepth;
1616
1617 /* Assign ISP specific operations. */
1618 if (IS_QLA2100(ha)) {
1619 host->max_id = MAX_TARGETS_2100;
1620 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
1621 ha->request_q_length = REQUEST_ENTRY_CNT_2100;
1622 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1623 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1624 host->sg_tablesize = 32;
1625 ha->gid_list_info_size = 4;
1626 ha->isp_ops = &qla2100_isp_ops;
1627 } else if (IS_QLA2200(ha)) {
1628 host->max_id = MAX_TARGETS_2200;
1629 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1630 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1631 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1632 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1633 ha->gid_list_info_size = 4;
1634 ha->isp_ops = &qla2100_isp_ops;
1635 } else if (IS_QLA23XX(ha)) {
1636 host->max_id = MAX_TARGETS_2200;
1637 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1638 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1639 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1640 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1641 ha->gid_list_info_size = 6;
1642 if (IS_QLA2322(ha) || IS_QLA6322(ha))
1643 ha->optrom_size = OPTROM_SIZE_2322;
1644 ha->isp_ops = &qla2300_isp_ops;
1645 } else if (IS_QLA24XX_TYPE(ha)) {
1646 host->max_id = MAX_TARGETS_2200;
1647 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1648 ha->request_q_length = REQUEST_ENTRY_CNT_24XX;
1649 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1650 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1651 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
1652 ha->mgmt_svr_loop_id = 10 + ha->vp_idx;
1653 ha->gid_list_info_size = 8;
1654 ha->optrom_size = OPTROM_SIZE_24XX;
1655 ha->isp_ops = &qla24xx_isp_ops;
1656 } else if (IS_QLA25XX(ha)) {
1657 host->max_id = MAX_TARGETS_2200;
1658 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1659 ha->request_q_length = REQUEST_ENTRY_CNT_24XX;
1660 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1661 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1662 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
1663 ha->mgmt_svr_loop_id = 10 + ha->vp_idx;
1664 ha->gid_list_info_size = 8;
1665 ha->optrom_size = OPTROM_SIZE_25XX;
1666 ha->isp_ops = &qla25xx_isp_ops;
1667 ha->hw_event_start = PCI_FUNC(pdev->devfn) ?
1668 FA_HW_EVENT1_ADDR: FA_HW_EVENT0_ADDR;
1669 }
1670 host->can_queue = ha->request_q_length + 128;
1671
1672 mutex_init(&ha->vport_lock);
1673 init_completion(&ha->mbx_cmd_comp);
1674 complete(&ha->mbx_cmd_comp);
1675 init_completion(&ha->mbx_intr_comp);
1676
1677 INIT_LIST_HEAD(&ha->list);
1678 INIT_LIST_HEAD(&ha->fcports);
1679 INIT_LIST_HEAD(&ha->vp_list);
1680 INIT_LIST_HEAD(&ha->work_list);
1681
1682 set_bit(0, (unsigned long *) ha->vp_idx_map);
1683
1684 qla2x00_config_dma_addressing(ha);
1685 if (qla2x00_mem_alloc(ha)) {
1686 qla_printk(KERN_WARNING, ha,
1687 "[ERROR] Failed to allocate memory for adapter\n");
1688
1689 ret = -ENOMEM;
1690 goto probe_failed;
1691 }
1692
1693 if (qla2x00_initialize_adapter(ha)) {
1694 qla_printk(KERN_WARNING, ha,
1695 "Failed to initialize adapter\n");
1696
1697 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
1698 "Adapter flags %x.\n",
1699 ha->host_no, ha->device_flags));
1700
1701 ret = -ENODEV;
1702 goto probe_failed;
1703 }
1704
1705 /*
1706 * Startup the kernel thread for this host adapter
1707 */
1708 ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
1709 "%s_dpc", ha->host_str);
1710 if (IS_ERR(ha->dpc_thread)) {
1711 qla_printk(KERN_WARNING, ha,
1712 "Unable to start DPC thread!\n");
1713 ret = PTR_ERR(ha->dpc_thread);
1714 goto probe_failed;
1715 }
1716
1717 host->this_id = 255;
1718 host->cmd_per_lun = 3;
1719 host->unique_id = host->host_no;
1720 host->max_cmd_len = MAX_CMDSZ;
1721 host->max_channel = MAX_BUSES - 1;
1722 host->max_lun = MAX_LUNS;
1723 host->transportt = qla2xxx_transport_template;
1724
1725 ret = qla2x00_request_irqs(ha);
1726 if (ret)
1727 goto probe_failed;
1728
1729 /* Initialized the timer */
1730 qla2x00_start_timer(ha, qla2x00_timer, WATCH_INTERVAL);
1731
1732 DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
1733 ha->host_no, ha));
1734
1735 pci_set_drvdata(pdev, ha);
1736
1737 ha->flags.init_done = 1;
1738 ha->flags.online = 1;
1739
1740 ret = scsi_add_host(host, &pdev->dev);
1741 if (ret)
1742 goto probe_failed;
1743
1744 scsi_scan_host(host);
1745
1746 qla2x00_alloc_sysfs_attr(ha);
1747
1748 qla2x00_init_host_attr(ha);
1749
1750 qla2x00_dfs_setup(ha);
1751
1752 qla_printk(KERN_INFO, ha, "\n"
1753 " QLogic Fibre Channel HBA Driver: %s\n"
1754 " QLogic %s - %s\n"
1755 " ISP%04X: %s @ %s hdma%c, host#=%ld, fw=%s\n",
1756 qla2x00_version_str, ha->model_number,
1757 ha->model_desc ? ha->model_desc: "", pdev->device,
1758 ha->isp_ops->pci_info_str(ha, pci_info), pci_name(pdev),
1759 ha->flags.enable_64bit_addressing ? '+': '-', ha->host_no,
1760 ha->isp_ops->fw_version_str(ha, fw_str));
1761
1762 return 0;
1763
1764 probe_failed:
1765 qla2x00_free_device(ha);
1766
1767 scsi_host_put(host);
1768
1769 probe_disable_device:
1770 pci_disable_device(pdev);
1771
1772 probe_out:
1773 return ret;
1774 }
1775
1776 static void
1777 qla2x00_remove_one(struct pci_dev *pdev)
1778 {
1779 scsi_qla_host_t *ha;
1780
1781 ha = pci_get_drvdata(pdev);
1782
1783 qla2x00_dfs_remove(ha);
1784
1785 qla84xx_put_chip(ha);
1786
1787 qla2x00_free_sysfs_attr(ha);
1788
1789 fc_remove_host(ha->host);
1790
1791 scsi_remove_host(ha->host);
1792
1793 qla2x00_free_device(ha);
1794
1795 scsi_host_put(ha->host);
1796
1797 pci_disable_device(pdev);
1798 pci_set_drvdata(pdev, NULL);
1799 }
1800
1801 static void
1802 qla2x00_free_device(scsi_qla_host_t *ha)
1803 {
1804 qla2x00_abort_all_cmds(ha, DID_NO_CONNECT << 16);
1805
1806 /* Disable timer */
1807 if (ha->timer_active)
1808 qla2x00_stop_timer(ha);
1809
1810 ha->flags.online = 0;
1811
1812 /* Kill the kernel thread for this host */
1813 if (ha->dpc_thread) {
1814 struct task_struct *t = ha->dpc_thread;
1815
1816 /*
1817 * qla2xxx_wake_dpc checks for ->dpc_thread
1818 * so we need to zero it out.
1819 */
1820 ha->dpc_thread = NULL;
1821 kthread_stop(t);
1822 }
1823
1824 if (ha->flags.fce_enabled)
1825 qla2x00_disable_fce_trace(ha, NULL, NULL);
1826
1827 if (ha->eft)
1828 qla2x00_disable_eft_trace(ha);
1829
1830 /* Stop currently executing firmware. */
1831 qla2x00_try_to_stop_firmware(ha);
1832
1833 /* turn-off interrupts on the card */
1834 if (ha->interrupts_on)
1835 ha->isp_ops->disable_intrs(ha);
1836
1837 qla2x00_mem_free(ha);
1838
1839 qla2x00_free_irqs(ha);
1840
1841 /* release io space registers */
1842 if (ha->iobase)
1843 iounmap(ha->iobase);
1844 pci_release_selected_regions(ha->pdev, ha->bars);
1845 }
1846
1847 static inline void
1848 qla2x00_schedule_rport_del(struct scsi_qla_host *ha, fc_port_t *fcport,
1849 int defer)
1850 {
1851 struct fc_rport *rport;
1852
1853 if (!fcport->rport)
1854 return;
1855
1856 rport = fcport->rport;
1857 if (defer) {
1858 spin_lock_irq(ha->host->host_lock);
1859 fcport->drport = rport;
1860 spin_unlock_irq(ha->host->host_lock);
1861 set_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags);
1862 qla2xxx_wake_dpc(ha);
1863 } else
1864 fc_remote_port_delete(rport);
1865 }
1866
1867 /*
1868 * qla2x00_mark_device_lost Updates fcport state when device goes offline.
1869 *
1870 * Input: ha = adapter block pointer. fcport = port structure pointer.
1871 *
1872 * Return: None.
1873 *
1874 * Context:
1875 */
1876 void qla2x00_mark_device_lost(scsi_qla_host_t *ha, fc_port_t *fcport,
1877 int do_login, int defer)
1878 {
1879 if (atomic_read(&fcport->state) == FCS_ONLINE &&
1880 ha->vp_idx == fcport->vp_idx)
1881 qla2x00_schedule_rport_del(ha, fcport, defer);
1882
1883 /*
1884 * We may need to retry the login, so don't change the state of the
1885 * port but do the retries.
1886 */
1887 if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
1888 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1889
1890 if (!do_login)
1891 return;
1892
1893 if (fcport->login_retry == 0) {
1894 fcport->login_retry = ha->login_retry_count;
1895 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
1896
1897 DEBUG(printk("scsi(%ld): Port login retry: "
1898 "%02x%02x%02x%02x%02x%02x%02x%02x, "
1899 "id = 0x%04x retry cnt=%d\n",
1900 ha->host_no,
1901 fcport->port_name[0],
1902 fcport->port_name[1],
1903 fcport->port_name[2],
1904 fcport->port_name[3],
1905 fcport->port_name[4],
1906 fcport->port_name[5],
1907 fcport->port_name[6],
1908 fcport->port_name[7],
1909 fcport->loop_id,
1910 fcport->login_retry));
1911 }
1912 }
1913
1914 /*
1915 * qla2x00_mark_all_devices_lost
1916 * Updates fcport state when device goes offline.
1917 *
1918 * Input:
1919 * ha = adapter block pointer.
1920 * fcport = port structure pointer.
1921 *
1922 * Return:
1923 * None.
1924 *
1925 * Context:
1926 */
1927 void
1928 qla2x00_mark_all_devices_lost(scsi_qla_host_t *ha, int defer)
1929 {
1930 fc_port_t *fcport;
1931 scsi_qla_host_t *pha = to_qla_parent(ha);
1932
1933 list_for_each_entry(fcport, &pha->fcports, list) {
1934 if (ha->vp_idx != fcport->vp_idx)
1935 continue;
1936 /*
1937 * No point in marking the device as lost, if the device is
1938 * already DEAD.
1939 */
1940 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
1941 continue;
1942 if (atomic_read(&fcport->state) == FCS_ONLINE)
1943 qla2x00_schedule_rport_del(ha, fcport, defer);
1944 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1945 }
1946 }
1947
1948 /*
1949 * qla2x00_mem_alloc
1950 * Allocates adapter memory.
1951 *
1952 * Returns:
1953 * 0 = success.
1954 * !0 = failure.
1955 */
1956 static int
1957 qla2x00_mem_alloc(scsi_qla_host_t *ha)
1958 {
1959 char name[16];
1960
1961 ha->request_ring = dma_alloc_coherent(&ha->pdev->dev,
1962 (ha->request_q_length + 1) * sizeof(request_t), &ha->request_dma,
1963 GFP_KERNEL);
1964 if (!ha->request_ring)
1965 goto fail;
1966
1967 ha->response_ring = dma_alloc_coherent(&ha->pdev->dev,
1968 (ha->response_q_length + 1) * sizeof(response_t),
1969 &ha->response_dma, GFP_KERNEL);
1970 if (!ha->response_ring)
1971 goto fail_free_request_ring;
1972
1973 ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
1974 &ha->gid_list_dma, GFP_KERNEL);
1975 if (!ha->gid_list)
1976 goto fail_free_response_ring;
1977
1978 ha->init_cb = dma_alloc_coherent(&ha->pdev->dev, ha->init_cb_size,
1979 &ha->init_cb_dma, GFP_KERNEL);
1980 if (!ha->init_cb)
1981 goto fail_free_gid_list;
1982
1983 snprintf(name, sizeof(name), "%s_%ld", QLA2XXX_DRIVER_NAME,
1984 ha->host_no);
1985 ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
1986 DMA_POOL_SIZE, 8, 0);
1987 if (!ha->s_dma_pool)
1988 goto fail_free_init_cb;
1989
1990 ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
1991 if (!ha->srb_mempool)
1992 goto fail_free_s_dma_pool;
1993
1994 /* Get memory for cached NVRAM */
1995 ha->nvram = kzalloc(MAX_NVRAM_SIZE, GFP_KERNEL);
1996 if (!ha->nvram)
1997 goto fail_free_srb_mempool;
1998
1999 /* Allocate memory for SNS commands */
2000 if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
2001 /* Get consistent memory allocated for SNS commands */
2002 ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
2003 sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma, GFP_KERNEL);
2004 if (!ha->sns_cmd)
2005 goto fail_free_nvram;
2006 } else {
2007 /* Get consistent memory allocated for MS IOCB */
2008 ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2009 &ha->ms_iocb_dma);
2010 if (!ha->ms_iocb)
2011 goto fail_free_nvram;
2012
2013 /* Get consistent memory allocated for CT SNS commands */
2014 ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
2015 sizeof(struct ct_sns_pkt), &ha->ct_sns_dma, GFP_KERNEL);
2016 if (!ha->ct_sns)
2017 goto fail_free_ms_iocb;
2018 }
2019
2020 return 0;
2021
2022 fail_free_ms_iocb:
2023 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2024 ha->ms_iocb = NULL;
2025 ha->ms_iocb_dma = 0;
2026 fail_free_nvram:
2027 kfree(ha->nvram);
2028 ha->nvram = NULL;
2029 fail_free_srb_mempool:
2030 mempool_destroy(ha->srb_mempool);
2031 ha->srb_mempool = NULL;
2032 fail_free_s_dma_pool:
2033 dma_pool_destroy(ha->s_dma_pool);
2034 ha->s_dma_pool = NULL;
2035 fail_free_init_cb:
2036 dma_free_coherent(&ha->pdev->dev, ha->init_cb_size, ha->init_cb,
2037 ha->init_cb_dma);
2038 ha->init_cb = NULL;
2039 ha->init_cb_dma = 0;
2040 fail_free_gid_list:
2041 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2042 ha->gid_list_dma);
2043 ha->gid_list = NULL;
2044 ha->gid_list_dma = 0;
2045 fail_free_response_ring:
2046 dma_free_coherent(&ha->pdev->dev, (ha->response_q_length + 1) *
2047 sizeof(response_t), ha->response_ring, ha->response_dma);
2048 ha->response_ring = NULL;
2049 ha->response_dma = 0;
2050 fail_free_request_ring:
2051 dma_free_coherent(&ha->pdev->dev, (ha->request_q_length + 1) *
2052 sizeof(request_t), ha->request_ring, ha->request_dma);
2053 ha->request_ring = NULL;
2054 ha->request_dma = 0;
2055 fail:
2056 return -ENOMEM;
2057 }
2058
2059 /*
2060 * qla2x00_mem_free
2061 * Frees all adapter allocated memory.
2062 *
2063 * Input:
2064 * ha = adapter block pointer.
2065 */
2066 static void
2067 qla2x00_mem_free(scsi_qla_host_t *ha)
2068 {
2069 struct list_head *fcpl, *fcptemp;
2070 fc_port_t *fcport;
2071
2072 if (ha->srb_mempool)
2073 mempool_destroy(ha->srb_mempool);
2074
2075 if (ha->fce)
2076 dma_free_coherent(&ha->pdev->dev, FCE_SIZE, ha->fce,
2077 ha->fce_dma);
2078
2079 if (ha->fw_dump) {
2080 if (ha->eft)
2081 dma_free_coherent(&ha->pdev->dev,
2082 ntohl(ha->fw_dump->eft_size), ha->eft, ha->eft_dma);
2083 vfree(ha->fw_dump);
2084 }
2085
2086 if (ha->sns_cmd)
2087 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
2088 ha->sns_cmd, ha->sns_cmd_dma);
2089
2090 if (ha->ct_sns)
2091 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2092 ha->ct_sns, ha->ct_sns_dma);
2093
2094 if (ha->sfp_data)
2095 dma_pool_free(ha->s_dma_pool, ha->sfp_data, ha->sfp_data_dma);
2096
2097 if (ha->ms_iocb)
2098 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2099
2100 if (ha->s_dma_pool)
2101 dma_pool_destroy(ha->s_dma_pool);
2102
2103 if (ha->init_cb)
2104 dma_free_coherent(&ha->pdev->dev, ha->init_cb_size,
2105 ha->init_cb, ha->init_cb_dma);
2106
2107 if (ha->gid_list)
2108 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2109 ha->gid_list_dma);
2110
2111 if (ha->response_ring)
2112 dma_free_coherent(&ha->pdev->dev,
2113 (ha->response_q_length + 1) * sizeof(response_t),
2114 ha->response_ring, ha->response_dma);
2115
2116 if (ha->request_ring)
2117 dma_free_coherent(&ha->pdev->dev,
2118 (ha->request_q_length + 1) * sizeof(request_t),
2119 ha->request_ring, ha->request_dma);
2120
2121 ha->srb_mempool = NULL;
2122 ha->eft = NULL;
2123 ha->eft_dma = 0;
2124 ha->sns_cmd = NULL;
2125 ha->sns_cmd_dma = 0;
2126 ha->ct_sns = NULL;
2127 ha->ct_sns_dma = 0;
2128 ha->ms_iocb = NULL;
2129 ha->ms_iocb_dma = 0;
2130 ha->init_cb = NULL;
2131 ha->init_cb_dma = 0;
2132
2133 ha->s_dma_pool = NULL;
2134
2135 ha->gid_list = NULL;
2136 ha->gid_list_dma = 0;
2137
2138 ha->response_ring = NULL;
2139 ha->response_dma = 0;
2140 ha->request_ring = NULL;
2141 ha->request_dma = 0;
2142
2143 list_for_each_safe(fcpl, fcptemp, &ha->fcports) {
2144 fcport = list_entry(fcpl, fc_port_t, list);
2145
2146 /* fc ports */
2147 list_del_init(&fcport->list);
2148 kfree(fcport);
2149 }
2150 INIT_LIST_HEAD(&ha->fcports);
2151
2152 ha->fw_dump = NULL;
2153 ha->fw_dumped = 0;
2154 ha->fw_dump_reading = 0;
2155
2156 vfree(ha->optrom_buffer);
2157 kfree(ha->nvram);
2158 }
2159
2160 static struct qla_work_evt *
2161 qla2x00_alloc_work(struct scsi_qla_host *ha, enum qla_work_type type,
2162 int locked)
2163 {
2164 struct qla_work_evt *e;
2165
2166 e = kzalloc(sizeof(struct qla_work_evt), locked ? GFP_ATOMIC:
2167 GFP_KERNEL);
2168 if (!e)
2169 return NULL;
2170
2171 INIT_LIST_HEAD(&e->list);
2172 e->type = type;
2173 e->flags = QLA_EVT_FLAG_FREE;
2174 return e;
2175 }
2176
2177 static int
2178 qla2x00_post_work(struct scsi_qla_host *ha, struct qla_work_evt *e, int locked)
2179 {
2180 unsigned long flags;
2181 scsi_qla_host_t *pha = to_qla_parent(ha);
2182
2183 if (!locked)
2184 spin_lock_irqsave(&pha->hardware_lock, flags);
2185 list_add_tail(&e->list, &ha->work_list);
2186 qla2xxx_wake_dpc(ha);
2187 if (!locked)
2188 spin_unlock_irqrestore(&pha->hardware_lock, flags);
2189 return QLA_SUCCESS;
2190 }
2191
2192 int
2193 qla2x00_post_aen_work(struct scsi_qla_host *ha, enum fc_host_event_code code,
2194 u32 data)
2195 {
2196 struct qla_work_evt *e;
2197
2198 e = qla2x00_alloc_work(ha, QLA_EVT_AEN, 1);
2199 if (!e)
2200 return QLA_FUNCTION_FAILED;
2201
2202 e->u.aen.code = code;
2203 e->u.aen.data = data;
2204 return qla2x00_post_work(ha, e, 1);
2205 }
2206
2207 int
2208 qla2x00_post_hwe_work(struct scsi_qla_host *ha, uint16_t code, uint16_t d1,
2209 uint16_t d2, uint16_t d3)
2210 {
2211 struct qla_work_evt *e;
2212
2213 e = qla2x00_alloc_work(ha, QLA_EVT_HWE_LOG, 1);
2214 if (!e)
2215 return QLA_FUNCTION_FAILED;
2216
2217 e->u.hwe.code = code;
2218 e->u.hwe.d1 = d1;
2219 e->u.hwe.d2 = d2;
2220 e->u.hwe.d3 = d3;
2221 return qla2x00_post_work(ha, e, 1);
2222 }
2223
2224 static void
2225 qla2x00_do_work(struct scsi_qla_host *ha)
2226 {
2227 struct qla_work_evt *e;
2228 scsi_qla_host_t *pha = to_qla_parent(ha);
2229
2230 spin_lock_irq(&pha->hardware_lock);
2231 while (!list_empty(&ha->work_list)) {
2232 e = list_entry(ha->work_list.next, struct qla_work_evt, list);
2233 list_del_init(&e->list);
2234 spin_unlock_irq(&pha->hardware_lock);
2235
2236 switch (e->type) {
2237 case QLA_EVT_AEN:
2238 fc_host_post_event(ha->host, fc_get_event_number(),
2239 e->u.aen.code, e->u.aen.data);
2240 break;
2241 case QLA_EVT_HWE_LOG:
2242 qla2xxx_hw_event_log(ha, e->u.hwe.code, e->u.hwe.d1,
2243 e->u.hwe.d2, e->u.hwe.d3);
2244 break;
2245 }
2246 if (e->flags & QLA_EVT_FLAG_FREE)
2247 kfree(e);
2248 spin_lock_irq(&pha->hardware_lock);
2249 }
2250 spin_unlock_irq(&pha->hardware_lock);
2251 }
2252
2253 /**************************************************************************
2254 * qla2x00_do_dpc
2255 * This kernel thread is a task that is schedule by the interrupt handler
2256 * to perform the background processing for interrupts.
2257 *
2258 * Notes:
2259 * This task always run in the context of a kernel thread. It
2260 * is kick-off by the driver's detect code and starts up
2261 * up one per adapter. It immediately goes to sleep and waits for
2262 * some fibre event. When either the interrupt handler or
2263 * the timer routine detects a event it will one of the task
2264 * bits then wake us up.
2265 **************************************************************************/
2266 static int
2267 qla2x00_do_dpc(void *data)
2268 {
2269 int rval;
2270 scsi_qla_host_t *ha;
2271 fc_port_t *fcport;
2272 uint8_t status;
2273 uint16_t next_loopid;
2274 struct scsi_qla_host *vha;
2275 int i;
2276
2277
2278 ha = (scsi_qla_host_t *)data;
2279
2280 set_user_nice(current, -20);
2281
2282 while (!kthread_should_stop()) {
2283 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
2284
2285 set_current_state(TASK_INTERRUPTIBLE);
2286 schedule();
2287 __set_current_state(TASK_RUNNING);
2288
2289 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
2290
2291 /* Initialization not yet finished. Don't do anything yet. */
2292 if (!ha->flags.init_done)
2293 continue;
2294
2295 DEBUG3(printk("scsi(%ld): DPC handler\n", ha->host_no));
2296
2297 ha->dpc_active = 1;
2298
2299 if (ha->flags.mbox_busy) {
2300 ha->dpc_active = 0;
2301 continue;
2302 }
2303
2304 qla2x00_do_work(ha);
2305
2306 if (test_and_clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) {
2307
2308 DEBUG(printk("scsi(%ld): dpc: sched "
2309 "qla2x00_abort_isp ha = %p\n",
2310 ha->host_no, ha));
2311 if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
2312 &ha->dpc_flags))) {
2313
2314 if (qla2x00_abort_isp(ha)) {
2315 /* failed. retry later */
2316 set_bit(ISP_ABORT_NEEDED,
2317 &ha->dpc_flags);
2318 }
2319 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2320 }
2321
2322 for_each_mapped_vp_idx(ha, i) {
2323 list_for_each_entry(vha, &ha->vp_list,
2324 vp_list) {
2325 if (i == vha->vp_idx) {
2326 set_bit(ISP_ABORT_NEEDED,
2327 &vha->dpc_flags);
2328 break;
2329 }
2330 }
2331 }
2332
2333 DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
2334 ha->host_no));
2335 }
2336
2337 if (test_and_clear_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags))
2338 qla2x00_update_fcports(ha);
2339
2340 if (test_and_clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) &&
2341 (!(test_and_set_bit(RESET_ACTIVE, &ha->dpc_flags)))) {
2342
2343 DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
2344 ha->host_no));
2345
2346 qla2x00_rst_aen(ha);
2347 clear_bit(RESET_ACTIVE, &ha->dpc_flags);
2348 }
2349
2350 /* Retry each device up to login retry count */
2351 if ((test_and_clear_bit(RELOGIN_NEEDED, &ha->dpc_flags)) &&
2352 !test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) &&
2353 atomic_read(&ha->loop_state) != LOOP_DOWN) {
2354
2355 DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
2356 ha->host_no));
2357
2358 next_loopid = 0;
2359 list_for_each_entry(fcport, &ha->fcports, list) {
2360 /*
2361 * If the port is not ONLINE then try to login
2362 * to it if we haven't run out of retries.
2363 */
2364 if (atomic_read(&fcport->state) != FCS_ONLINE &&
2365 fcport->login_retry) {
2366
2367 if (fcport->flags & FCF_FABRIC_DEVICE) {
2368 if (fcport->flags &
2369 FCF_TAPE_PRESENT)
2370 ha->isp_ops->fabric_logout(
2371 ha, fcport->loop_id,
2372 fcport->d_id.b.domain,
2373 fcport->d_id.b.area,
2374 fcport->d_id.b.al_pa);
2375 status = qla2x00_fabric_login(
2376 ha, fcport, &next_loopid);
2377 } else
2378 status =
2379 qla2x00_local_device_login(
2380 ha, fcport);
2381
2382 fcport->login_retry--;
2383 if (status == QLA_SUCCESS) {
2384 fcport->old_loop_id = fcport->loop_id;
2385
2386 DEBUG(printk("scsi(%ld): port login OK: logged in ID 0x%x\n",
2387 ha->host_no, fcport->loop_id));
2388
2389 qla2x00_update_fcport(ha,
2390 fcport);
2391 } else if (status == 1) {
2392 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
2393 /* retry the login again */
2394 DEBUG(printk("scsi(%ld): Retrying %d login again loop_id 0x%x\n",
2395 ha->host_no,
2396 fcport->login_retry, fcport->loop_id));
2397 } else {
2398 fcport->login_retry = 0;
2399 }
2400 if (fcport->login_retry == 0 && status != QLA_SUCCESS)
2401 fcport->loop_id = FC_NO_LOOP_ID;
2402 }
2403 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2404 break;
2405 }
2406 DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
2407 ha->host_no));
2408 }
2409
2410 if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
2411
2412 DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
2413 ha->host_no));
2414
2415 if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
2416 &ha->dpc_flags))) {
2417
2418 rval = qla2x00_loop_resync(ha);
2419
2420 clear_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags);
2421 }
2422
2423 DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
2424 ha->host_no));
2425 }
2426
2427 if (!ha->interrupts_on)
2428 ha->isp_ops->enable_intrs(ha);
2429
2430 if (test_and_clear_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags))
2431 ha->isp_ops->beacon_blink(ha);
2432
2433 qla2x00_do_dpc_all_vps(ha);
2434
2435 ha->dpc_active = 0;
2436 } /* End of while(1) */
2437
2438 DEBUG(printk("scsi(%ld): DPC handler exiting\n", ha->host_no));
2439
2440 /*
2441 * Make sure that nobody tries to wake us up again.
2442 */
2443 ha->dpc_active = 0;
2444
2445 return 0;
2446 }
2447
2448 void
2449 qla2xxx_wake_dpc(scsi_qla_host_t *ha)
2450 {
2451 if (ha->dpc_thread)
2452 wake_up_process(ha->dpc_thread);
2453 }
2454
2455 /*
2456 * qla2x00_rst_aen
2457 * Processes asynchronous reset.
2458 *
2459 * Input:
2460 * ha = adapter block pointer.
2461 */
2462 static void
2463 qla2x00_rst_aen(scsi_qla_host_t *ha)
2464 {
2465 if (ha->flags.online && !ha->flags.reset_active &&
2466 !atomic_read(&ha->loop_down_timer) &&
2467 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) {
2468 do {
2469 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
2470
2471 /*
2472 * Issue marker command only when we are going to start
2473 * the I/O.
2474 */
2475 ha->marker_needed = 1;
2476 } while (!atomic_read(&ha->loop_down_timer) &&
2477 (test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags)));
2478 }
2479 }
2480
2481 static void
2482 qla2x00_sp_free_dma(scsi_qla_host_t *ha, srb_t *sp)
2483 {
2484 struct scsi_cmnd *cmd = sp->cmd;
2485
2486 if (sp->flags & SRB_DMA_VALID) {
2487 scsi_dma_unmap(cmd);
2488 sp->flags &= ~SRB_DMA_VALID;
2489 }
2490 CMD_SP(cmd) = NULL;
2491 }
2492
2493 void
2494 qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *sp)
2495 {
2496 struct scsi_cmnd *cmd = sp->cmd;
2497
2498 qla2x00_sp_free_dma(ha, sp);
2499
2500 mempool_free(sp, ha->srb_mempool);
2501
2502 cmd->scsi_done(cmd);
2503 }
2504
2505 /**************************************************************************
2506 * qla2x00_timer
2507 *
2508 * Description:
2509 * One second timer
2510 *
2511 * Context: Interrupt
2512 ***************************************************************************/
2513 void
2514 qla2x00_timer(scsi_qla_host_t *ha)
2515 {
2516 unsigned long cpu_flags = 0;
2517 fc_port_t *fcport;
2518 int start_dpc = 0;
2519 int index;
2520 srb_t *sp;
2521 int t;
2522 scsi_qla_host_t *pha = to_qla_parent(ha);
2523
2524 /*
2525 * Ports - Port down timer.
2526 *
2527 * Whenever, a port is in the LOST state we start decrementing its port
2528 * down timer every second until it reaches zero. Once it reaches zero
2529 * the port it marked DEAD.
2530 */
2531 t = 0;
2532 list_for_each_entry(fcport, &ha->fcports, list) {
2533 if (fcport->port_type != FCT_TARGET)
2534 continue;
2535
2536 if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
2537
2538 if (atomic_read(&fcport->port_down_timer) == 0)
2539 continue;
2540
2541 if (atomic_dec_and_test(&fcport->port_down_timer) != 0)
2542 atomic_set(&fcport->state, FCS_DEVICE_DEAD);
2543
2544 DEBUG(printk("scsi(%ld): fcport-%d - port retry count: "
2545 "%d remaining\n",
2546 ha->host_no,
2547 t, atomic_read(&fcport->port_down_timer)));
2548 }
2549 t++;
2550 } /* End of for fcport */
2551
2552
2553 /* Loop down handler. */
2554 if (atomic_read(&ha->loop_down_timer) > 0 &&
2555 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags)) && ha->flags.online) {
2556
2557 if (atomic_read(&ha->loop_down_timer) ==
2558 ha->loop_down_abort_time) {
2559
2560 DEBUG(printk("scsi(%ld): Loop Down - aborting the "
2561 "queues before time expire\n",
2562 ha->host_no));
2563
2564 if (!IS_QLA2100(ha) && ha->link_down_timeout)
2565 atomic_set(&ha->loop_state, LOOP_DEAD);
2566
2567 /* Schedule an ISP abort to return any tape commands. */
2568 /* NPIV - scan physical port only */
2569 if (!ha->parent) {
2570 spin_lock_irqsave(&ha->hardware_lock,
2571 cpu_flags);
2572 for (index = 1;
2573 index < MAX_OUTSTANDING_COMMANDS;
2574 index++) {
2575 fc_port_t *sfcp;
2576
2577 sp = ha->outstanding_cmds[index];
2578 if (!sp)
2579 continue;
2580 sfcp = sp->fcport;
2581 if (!(sfcp->flags & FCF_TAPE_PRESENT))
2582 continue;
2583
2584 set_bit(ISP_ABORT_NEEDED,
2585 &ha->dpc_flags);
2586 break;
2587 }
2588 spin_unlock_irqrestore(&ha->hardware_lock,
2589 cpu_flags);
2590 }
2591 set_bit(ABORT_QUEUES_NEEDED, &ha->dpc_flags);
2592 start_dpc++;
2593 }
2594
2595 /* if the loop has been down for 4 minutes, reinit adapter */
2596 if (atomic_dec_and_test(&ha->loop_down_timer) != 0) {
2597 DEBUG(printk("scsi(%ld): Loop down exceed 4 mins - "
2598 "restarting queues.\n",
2599 ha->host_no));
2600
2601 set_bit(RESTART_QUEUES_NEEDED, &ha->dpc_flags);
2602 start_dpc++;
2603
2604 if (!(ha->device_flags & DFLG_NO_CABLE) &&
2605 !ha->parent) {
2606 DEBUG(printk("scsi(%ld): Loop down - "
2607 "aborting ISP.\n",
2608 ha->host_no));
2609 qla_printk(KERN_WARNING, ha,
2610 "Loop down - aborting ISP.\n");
2611
2612 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2613 }
2614 }
2615 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
2616 ha->host_no,
2617 atomic_read(&ha->loop_down_timer)));
2618 }
2619
2620 /* Check if beacon LED needs to be blinked */
2621 if (ha->beacon_blink_led == 1) {
2622 set_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags);
2623 start_dpc++;
2624 }
2625
2626 /* Process any deferred work. */
2627 if (!list_empty(&ha->work_list))
2628 start_dpc++;
2629
2630 /* Schedule the DPC routine if needed */
2631 if ((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags) ||
2632 test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) ||
2633 test_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags) ||
2634 start_dpc ||
2635 test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) ||
2636 test_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags) ||
2637 test_bit(VP_DPC_NEEDED, &ha->dpc_flags) ||
2638 test_bit(RELOGIN_NEEDED, &ha->dpc_flags)))
2639 qla2xxx_wake_dpc(pha);
2640
2641 qla2x00_restart_timer(ha, WATCH_INTERVAL);
2642 }
2643
2644 /* Firmware interface routines. */
2645
2646 #define FW_BLOBS 6
2647 #define FW_ISP21XX 0
2648 #define FW_ISP22XX 1
2649 #define FW_ISP2300 2
2650 #define FW_ISP2322 3
2651 #define FW_ISP24XX 4
2652 #define FW_ISP25XX 5
2653
2654 #define FW_FILE_ISP21XX "ql2100_fw.bin"
2655 #define FW_FILE_ISP22XX "ql2200_fw.bin"
2656 #define FW_FILE_ISP2300 "ql2300_fw.bin"
2657 #define FW_FILE_ISP2322 "ql2322_fw.bin"
2658 #define FW_FILE_ISP24XX "ql2400_fw.bin"
2659 #define FW_FILE_ISP25XX "ql2500_fw.bin"
2660
2661 static DEFINE_MUTEX(qla_fw_lock);
2662
2663 static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
2664 { .name = FW_FILE_ISP21XX, .segs = { 0x1000, 0 }, },
2665 { .name = FW_FILE_ISP22XX, .segs = { 0x1000, 0 }, },
2666 { .name = FW_FILE_ISP2300, .segs = { 0x800, 0 }, },
2667 { .name = FW_FILE_ISP2322, .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
2668 { .name = FW_FILE_ISP24XX, },
2669 { .name = FW_FILE_ISP25XX, },
2670 };
2671
2672 struct fw_blob *
2673 qla2x00_request_firmware(scsi_qla_host_t *ha)
2674 {
2675 struct fw_blob *blob;
2676
2677 blob = NULL;
2678 if (IS_QLA2100(ha)) {
2679 blob = &qla_fw_blobs[FW_ISP21XX];
2680 } else if (IS_QLA2200(ha)) {
2681 blob = &qla_fw_blobs[FW_ISP22XX];
2682 } else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
2683 blob = &qla_fw_blobs[FW_ISP2300];
2684 } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
2685 blob = &qla_fw_blobs[FW_ISP2322];
2686 } else if (IS_QLA24XX_TYPE(ha)) {
2687 blob = &qla_fw_blobs[FW_ISP24XX];
2688 } else if (IS_QLA25XX(ha)) {
2689 blob = &qla_fw_blobs[FW_ISP25XX];
2690 }
2691
2692 mutex_lock(&qla_fw_lock);
2693 if (blob->fw)
2694 goto out;
2695
2696 if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
2697 DEBUG2(printk("scsi(%ld): Failed to load firmware image "
2698 "(%s).\n", ha->host_no, blob->name));
2699 blob->fw = NULL;
2700 blob = NULL;
2701 goto out;
2702 }
2703
2704 out:
2705 mutex_unlock(&qla_fw_lock);
2706 return blob;
2707 }
2708
2709 static void
2710 qla2x00_release_firmware(void)
2711 {
2712 int idx;
2713
2714 mutex_lock(&qla_fw_lock);
2715 for (idx = 0; idx < FW_BLOBS; idx++)
2716 if (qla_fw_blobs[idx].fw)
2717 release_firmware(qla_fw_blobs[idx].fw);
2718 mutex_unlock(&qla_fw_lock);
2719 }
2720
2721 static pci_ers_result_t
2722 qla2xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
2723 {
2724 switch (state) {
2725 case pci_channel_io_normal:
2726 return PCI_ERS_RESULT_CAN_RECOVER;
2727 case pci_channel_io_frozen:
2728 pci_disable_device(pdev);
2729 return PCI_ERS_RESULT_NEED_RESET;
2730 case pci_channel_io_perm_failure:
2731 qla2x00_remove_one(pdev);
2732 return PCI_ERS_RESULT_DISCONNECT;
2733 }
2734 return PCI_ERS_RESULT_NEED_RESET;
2735 }
2736
2737 static pci_ers_result_t
2738 qla2xxx_pci_mmio_enabled(struct pci_dev *pdev)
2739 {
2740 int risc_paused = 0;
2741 uint32_t stat;
2742 unsigned long flags;
2743 scsi_qla_host_t *ha = pci_get_drvdata(pdev);
2744 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
2745 struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
2746
2747 spin_lock_irqsave(&ha->hardware_lock, flags);
2748 if (IS_QLA2100(ha) || IS_QLA2200(ha)){
2749 stat = RD_REG_DWORD(&reg->hccr);
2750 if (stat & HCCR_RISC_PAUSE)
2751 risc_paused = 1;
2752 } else if (IS_QLA23XX(ha)) {
2753 stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
2754 if (stat & HSR_RISC_PAUSED)
2755 risc_paused = 1;
2756 } else if (IS_FWI2_CAPABLE(ha)) {
2757 stat = RD_REG_DWORD(&reg24->host_status);
2758 if (stat & HSRX_RISC_PAUSED)
2759 risc_paused = 1;
2760 }
2761 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2762
2763 if (risc_paused) {
2764 qla_printk(KERN_INFO, ha, "RISC paused -- mmio_enabled, "
2765 "Dumping firmware!\n");
2766 ha->isp_ops->fw_dump(ha, 0);
2767
2768 return PCI_ERS_RESULT_NEED_RESET;
2769 } else
2770 return PCI_ERS_RESULT_RECOVERED;
2771 }
2772
2773 static pci_ers_result_t
2774 qla2xxx_pci_slot_reset(struct pci_dev *pdev)
2775 {
2776 pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
2777 scsi_qla_host_t *ha = pci_get_drvdata(pdev);
2778 int rc;
2779
2780 if (ha->mem_only)
2781 rc = pci_enable_device_mem(pdev);
2782 else
2783 rc = pci_enable_device(pdev);
2784
2785 if (rc) {
2786 qla_printk(KERN_WARNING, ha,
2787 "Can't re-enable PCI device after reset.\n");
2788
2789 return ret;
2790 }
2791 pci_set_master(pdev);
2792
2793 if (ha->isp_ops->pci_config(ha))
2794 return ret;
2795
2796 set_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2797 if (qla2x00_abort_isp(ha)== QLA_SUCCESS)
2798 ret = PCI_ERS_RESULT_RECOVERED;
2799 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2800
2801 return ret;
2802 }
2803
2804 static void
2805 qla2xxx_pci_resume(struct pci_dev *pdev)
2806 {
2807 scsi_qla_host_t *ha = pci_get_drvdata(pdev);
2808 int ret;
2809
2810 ret = qla2x00_wait_for_hba_online(ha);
2811 if (ret != QLA_SUCCESS) {
2812 qla_printk(KERN_ERR, ha,
2813 "the device failed to resume I/O "
2814 "from slot/link_reset");
2815 }
2816 pci_cleanup_aer_uncorrect_error_status(pdev);
2817 }
2818
2819 static struct pci_error_handlers qla2xxx_err_handler = {
2820 .error_detected = qla2xxx_pci_error_detected,
2821 .mmio_enabled = qla2xxx_pci_mmio_enabled,
2822 .slot_reset = qla2xxx_pci_slot_reset,
2823 .resume = qla2xxx_pci_resume,
2824 };
2825
2826 static struct pci_device_id qla2xxx_pci_tbl[] = {
2827 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
2828 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
2829 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
2830 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
2831 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
2832 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
2833 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
2834 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
2835 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
2836 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8432) },
2837 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
2838 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
2839 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2532) },
2840 { 0 },
2841 };
2842 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
2843
2844 static struct pci_driver qla2xxx_pci_driver = {
2845 .name = QLA2XXX_DRIVER_NAME,
2846 .driver = {
2847 .owner = THIS_MODULE,
2848 },
2849 .id_table = qla2xxx_pci_tbl,
2850 .probe = qla2x00_probe_one,
2851 .remove = qla2x00_remove_one,
2852 .err_handler = &qla2xxx_err_handler,
2853 };
2854
2855 /**
2856 * qla2x00_module_init - Module initialization.
2857 **/
2858 static int __init
2859 qla2x00_module_init(void)
2860 {
2861 int ret = 0;
2862
2863 /* Allocate cache for SRBs. */
2864 srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
2865 SLAB_HWCACHE_ALIGN, NULL);
2866 if (srb_cachep == NULL) {
2867 printk(KERN_ERR
2868 "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
2869 return -ENOMEM;
2870 }
2871
2872 /* Derive version string. */
2873 strcpy(qla2x00_version_str, QLA2XXX_VERSION);
2874 if (ql2xextended_error_logging)
2875 strcat(qla2x00_version_str, "-debug");
2876
2877 qla2xxx_transport_template =
2878 fc_attach_transport(&qla2xxx_transport_functions);
2879 if (!qla2xxx_transport_template) {
2880 kmem_cache_destroy(srb_cachep);
2881 return -ENODEV;
2882 }
2883 qla2xxx_transport_vport_template =
2884 fc_attach_transport(&qla2xxx_transport_vport_functions);
2885 if (!qla2xxx_transport_vport_template) {
2886 kmem_cache_destroy(srb_cachep);
2887 fc_release_transport(qla2xxx_transport_template);
2888 return -ENODEV;
2889 }
2890
2891 printk(KERN_INFO "QLogic Fibre Channel HBA Driver: %s\n",
2892 qla2x00_version_str);
2893 ret = pci_register_driver(&qla2xxx_pci_driver);
2894 if (ret) {
2895 kmem_cache_destroy(srb_cachep);
2896 fc_release_transport(qla2xxx_transport_template);
2897 fc_release_transport(qla2xxx_transport_vport_template);
2898 }
2899 return ret;
2900 }
2901
2902 /**
2903 * qla2x00_module_exit - Module cleanup.
2904 **/
2905 static void __exit
2906 qla2x00_module_exit(void)
2907 {
2908 pci_unregister_driver(&qla2xxx_pci_driver);
2909 qla2x00_release_firmware();
2910 kmem_cache_destroy(srb_cachep);
2911 fc_release_transport(qla2xxx_transport_template);
2912 fc_release_transport(qla2xxx_transport_vport_template);
2913 }
2914
2915 module_init(qla2x00_module_init);
2916 module_exit(qla2x00_module_exit);
2917
2918 MODULE_AUTHOR("QLogic Corporation");
2919 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
2920 MODULE_LICENSE("GPL");
2921 MODULE_VERSION(QLA2XXX_VERSION);
2922 MODULE_FIRMWARE(FW_FILE_ISP21XX);
2923 MODULE_FIRMWARE(FW_FILE_ISP22XX);
2924 MODULE_FIRMWARE(FW_FILE_ISP2300);
2925 MODULE_FIRMWARE(FW_FILE_ISP2322);
2926 MODULE_FIRMWARE(FW_FILE_ISP24XX);
2927 MODULE_FIRMWARE(FW_FILE_ISP25XX);
Linux kernel - Deliverables
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