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Committer: Michael Beasley <mike@snafu.setup>
[mikesnafu-overlay.git] / drivers / scsi / qla2xxx / qla_os.c
blob0e8e0920bedcd40041da6066442fa6ec13f24e8f
1 /*
2 * QLogic Fibre Channel HBA Driver
3 * Copyright (c) 2003-2005 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
14 #include <scsi/scsi_tcq.h>
15 #include <scsi/scsicam.h>
16 #include <scsi/scsi_transport.h>
17 #include <scsi/scsi_transport_fc.h>
18
19 /*
20 * Driver version
21 */
22 char qla2x00_version_str[40];
23
24 /*
25 * SRB allocation cache
26 */
27 static struct kmem_cache *srb_cachep;
28
29 /*
30 * Ioctl related information.
31 */
32 int num_hosts;
33 int ql2xlogintimeout = 20;
34 module_param(ql2xlogintimeout, int, S_IRUGO|S_IRUSR);
35 MODULE_PARM_DESC(ql2xlogintimeout,
36 "Login timeout value in seconds.");
37
38 int qlport_down_retry;
39 module_param(qlport_down_retry, int, S_IRUGO|S_IRUSR);
40 MODULE_PARM_DESC(qlport_down_retry,
41 "Maximum number of command retries to a port that returns "
42 "a PORT-DOWN status.");
43
44 int ql2xplogiabsentdevice;
45 module_param(ql2xplogiabsentdevice, int, S_IRUGO|S_IWUSR);
46 MODULE_PARM_DESC(ql2xplogiabsentdevice,
47 "Option to enable PLOGI to devices that are not present after "
48 "a Fabric scan. This is needed for several broken switches. "
49 "Default is 0 - no PLOGI. 1 - perfom PLOGI.");
50
51 int ql2xloginretrycount = 0;
52 module_param(ql2xloginretrycount, int, S_IRUGO|S_IRUSR);
53 MODULE_PARM_DESC(ql2xloginretrycount,
54 "Specify an alternate value for the NVRAM login retry count.");
55
56 int ql2xallocfwdump = 1;
57 module_param(ql2xallocfwdump, int, S_IRUGO|S_IRUSR);
58 MODULE_PARM_DESC(ql2xallocfwdump,
59 "Option to enable allocation of memory for a firmware dump "
60 "during HBA initialization. Memory allocation requirements "
61 "vary by ISP type. Default is 1 - allocate memory.");
62
63 int ql2xextended_error_logging;
64 module_param(ql2xextended_error_logging, int, S_IRUGO|S_IWUSR);
65 MODULE_PARM_DESC(ql2xextended_error_logging,
66 "Option to enable extended error logging, "
67 "Default is 0 - no logging. 1 - log errors.");
68
69 static void qla2x00_free_device(scsi_qla_host_t *);
70
71 static void qla2x00_config_dma_addressing(scsi_qla_host_t *ha);
72
73 int ql2xfdmienable;
74 module_param(ql2xfdmienable, int, S_IRUGO|S_IRUSR);
75 MODULE_PARM_DESC(ql2xfdmienable,
76 "Enables FDMI registratons "
77 "Default is 0 - no FDMI. 1 - perfom FDMI.");
78
79 #define MAX_Q_DEPTH 32
80 static int ql2xmaxqdepth = MAX_Q_DEPTH;
81 module_param(ql2xmaxqdepth, int, S_IRUGO|S_IWUSR);
82 MODULE_PARM_DESC(ql2xmaxqdepth,
83 "Maximum queue depth to report for target devices.");
84
85 int ql2xqfullrampup = 120;
86 module_param(ql2xqfullrampup, int, S_IRUGO|S_IWUSR);
87 MODULE_PARM_DESC(ql2xqfullrampup,
88 "Number of seconds to wait to begin to ramp-up the queue "
89 "depth for a device after a queue-full condition has been "
90 "detected. Default is 120 seconds.");
91
92 /*
93 * SCSI host template entry points
94 */
95 static int qla2xxx_slave_configure(struct scsi_device * device);
96 static int qla2xxx_slave_alloc(struct scsi_device *);
97 static int qla2xxx_scan_finished(struct Scsi_Host *, unsigned long time);
98 static void qla2xxx_scan_start(struct Scsi_Host *);
99 static void qla2xxx_slave_destroy(struct scsi_device *);
100 static int qla2x00_queuecommand(struct scsi_cmnd *cmd,
101 void (*fn)(struct scsi_cmnd *));
102 static int qla24xx_queuecommand(struct scsi_cmnd *cmd,
103 void (*fn)(struct scsi_cmnd *));
104 static int qla2xxx_eh_abort(struct scsi_cmnd *);
105 static int qla2xxx_eh_device_reset(struct scsi_cmnd *);
106 static int qla2xxx_eh_bus_reset(struct scsi_cmnd *);
107 static int qla2xxx_eh_host_reset(struct scsi_cmnd *);
108 static int qla2x00_device_reset(scsi_qla_host_t *, fc_port_t *);
109
110 static int qla2x00_change_queue_depth(struct scsi_device *, int);
111 static int qla2x00_change_queue_type(struct scsi_device *, int);
112
113 static struct scsi_host_template qla2x00_driver_template = {
114 .module = THIS_MODULE,
115 .name = QLA2XXX_DRIVER_NAME,
116 .queuecommand = qla2x00_queuecommand,
117
118 .eh_abort_handler = qla2xxx_eh_abort,
119 .eh_device_reset_handler = qla2xxx_eh_device_reset,
120 .eh_bus_reset_handler = qla2xxx_eh_bus_reset,
121 .eh_host_reset_handler = qla2xxx_eh_host_reset,
122
123 .slave_configure = qla2xxx_slave_configure,
124
125 .slave_alloc = qla2xxx_slave_alloc,
126 .slave_destroy = qla2xxx_slave_destroy,
127 .scan_finished = qla2xxx_scan_finished,
128 .scan_start = qla2xxx_scan_start,
129 .change_queue_depth = qla2x00_change_queue_depth,
130 .change_queue_type = qla2x00_change_queue_type,
131 .this_id = -1,
132 .cmd_per_lun = 3,
133 .use_clustering = ENABLE_CLUSTERING,
134 .sg_tablesize = SG_ALL,
135
136 /*
137 * The RISC allows for each command to transfer (2^32-1) bytes of data,
138 * which equates to 0x800000 sectors.
139 */
140 .max_sectors = 0xFFFF,
141 .shost_attrs = qla2x00_host_attrs,
142 };
143
144 struct scsi_host_template qla24xx_driver_template = {
145 .module = THIS_MODULE,
146 .name = QLA2XXX_DRIVER_NAME,
147 .queuecommand = qla24xx_queuecommand,
148
149 .eh_abort_handler = qla2xxx_eh_abort,
150 .eh_device_reset_handler = qla2xxx_eh_device_reset,
151 .eh_bus_reset_handler = qla2xxx_eh_bus_reset,
152 .eh_host_reset_handler = qla2xxx_eh_host_reset,
153
154 .slave_configure = qla2xxx_slave_configure,
155
156 .slave_alloc = qla2xxx_slave_alloc,
157 .slave_destroy = qla2xxx_slave_destroy,
158 .scan_finished = qla2xxx_scan_finished,
159 .scan_start = qla2xxx_scan_start,
160 .change_queue_depth = qla2x00_change_queue_depth,
161 .change_queue_type = qla2x00_change_queue_type,
162 .this_id = -1,
163 .cmd_per_lun = 3,
164 .use_clustering = ENABLE_CLUSTERING,
165 .sg_tablesize = SG_ALL,
166
167 .max_sectors = 0xFFFF,
168 .shost_attrs = qla2x00_host_attrs,
169 };
170
171 static struct scsi_transport_template *qla2xxx_transport_template = NULL;
172 struct scsi_transport_template *qla2xxx_transport_vport_template = NULL;
173
174 /* TODO Convert to inlines
175 *
176 * Timer routines
177 */
178
179 __inline__ void
180 qla2x00_start_timer(scsi_qla_host_t *ha, void *func, unsigned long interval)
181 {
182 init_timer(&ha->timer);
183 ha->timer.expires = jiffies + interval * HZ;
184 ha->timer.data = (unsigned long)ha;
185 ha->timer.function = (void (*)(unsigned long))func;
186 add_timer(&ha->timer);
187 ha->timer_active = 1;
188 }
189
190 static inline void
191 qla2x00_restart_timer(scsi_qla_host_t *ha, unsigned long interval)
192 {
193 mod_timer(&ha->timer, jiffies + interval * HZ);
194 }
195
196 static __inline__ void
197 qla2x00_stop_timer(scsi_qla_host_t *ha)
198 {
199 del_timer_sync(&ha->timer);
200 ha->timer_active = 0;
201 }
202
203 static int qla2x00_do_dpc(void *data);
204
205 static void qla2x00_rst_aen(scsi_qla_host_t *);
206
207 static int qla2x00_mem_alloc(scsi_qla_host_t *);
208 static void qla2x00_mem_free(scsi_qla_host_t *ha);
209 static void qla2x00_sp_free_dma(scsi_qla_host_t *, srb_t *);
210
211 /* -------------------------------------------------------------------------- */
212
213 static char *
214 qla2x00_pci_info_str(struct scsi_qla_host *ha, char *str)
215 {
216 static char *pci_bus_modes[] = {
217 "33", "66", "100", "133",
218 };
219 uint16_t pci_bus;
220
221 strcpy(str, "PCI");
222 pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
223 if (pci_bus) {
224 strcat(str, "-X (");
225 strcat(str, pci_bus_modes[pci_bus]);
226 } else {
227 pci_bus = (ha->pci_attr & BIT_8) >> 8;
228 strcat(str, " (");
229 strcat(str, pci_bus_modes[pci_bus]);
230 }
231 strcat(str, " MHz)");
232
233 return (str);
234 }
235
236 static char *
237 qla24xx_pci_info_str(struct scsi_qla_host *ha, char *str)
238 {
239 static char *pci_bus_modes[] = { "33", "66", "100", "133", };
240 uint32_t pci_bus;
241 int pcie_reg;
242
243 pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
244 if (pcie_reg) {
245 char lwstr[6];
246 uint16_t pcie_lstat, lspeed, lwidth;
247
248 pcie_reg += 0x12;
249 pci_read_config_word(ha->pdev, pcie_reg, &pcie_lstat);
250 lspeed = pcie_lstat & (BIT_0 | BIT_1 | BIT_2 | BIT_3);
251 lwidth = (pcie_lstat &
252 (BIT_4 | BIT_5 | BIT_6 | BIT_7 | BIT_8 | BIT_9)) >> 4;
253
254 strcpy(str, "PCIe (");
255 if (lspeed == 1)
256 strcat(str, "2.5Gb/s ");
257 else if (lspeed == 2)
258 strcat(str, "5.0Gb/s ");
259 else
260 strcat(str, "<unknown> ");
261 snprintf(lwstr, sizeof(lwstr), "x%d)", lwidth);
262 strcat(str, lwstr);
263
264 return str;
265 }
266
267 strcpy(str, "PCI");
268 pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
269 if (pci_bus == 0 || pci_bus == 8) {
270 strcat(str, " (");
271 strcat(str, pci_bus_modes[pci_bus >> 3]);
272 } else {
273 strcat(str, "-X ");
274 if (pci_bus & BIT_2)
275 strcat(str, "Mode 2");
276 else
277 strcat(str, "Mode 1");
278 strcat(str, " (");
279 strcat(str, pci_bus_modes[pci_bus & ~BIT_2]);
280 }
281 strcat(str, " MHz)");
282
283 return str;
284 }
285
286 static char *
287 qla2x00_fw_version_str(struct scsi_qla_host *ha, char *str)
288 {
289 char un_str[10];
290
291 sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
292 ha->fw_minor_version,
293 ha->fw_subminor_version);
294
295 if (ha->fw_attributes & BIT_9) {
296 strcat(str, "FLX");
297 return (str);
298 }
299
300 switch (ha->fw_attributes & 0xFF) {
301 case 0x7:
302 strcat(str, "EF");
303 break;
304 case 0x17:
305 strcat(str, "TP");
306 break;
307 case 0x37:
308 strcat(str, "IP");
309 break;
310 case 0x77:
311 strcat(str, "VI");
312 break;
313 default:
314 sprintf(un_str, "(%x)", ha->fw_attributes);
315 strcat(str, un_str);
316 break;
317 }
318 if (ha->fw_attributes & 0x100)
319 strcat(str, "X");
320
321 return (str);
322 }
323
324 static char *
325 qla24xx_fw_version_str(struct scsi_qla_host *ha, char *str)
326 {
327 sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
328 ha->fw_minor_version,
329 ha->fw_subminor_version);
330
331 if (ha->fw_attributes & BIT_0)
332 strcat(str, "[Class 2] ");
333 if (ha->fw_attributes & BIT_1)
334 strcat(str, "[IP] ");
335 if (ha->fw_attributes & BIT_2)
336 strcat(str, "[Multi-ID] ");
337 if (ha->fw_attributes & BIT_3)
338 strcat(str, "[SB-2] ");
339 if (ha->fw_attributes & BIT_4)
340 strcat(str, "[T10 CRC] ");
341 if (ha->fw_attributes & BIT_5)
342 strcat(str, "[VI] ");
343 if (ha->fw_attributes & BIT_13)
344 strcat(str, "[Experimental]");
345 return str;
346 }
347
348 static inline srb_t *
349 qla2x00_get_new_sp(scsi_qla_host_t *ha, fc_port_t *fcport,
350 struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
351 {
352 srb_t *sp;
353
354 sp = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
355 if (!sp)
356 return sp;
357
358 sp->ha = ha;
359 sp->fcport = fcport;
360 sp->cmd = cmd;
361 sp->flags = 0;
362 CMD_SP(cmd) = (void *)sp;
363 cmd->scsi_done = done;
364
365 return sp;
366 }
367
368 static int
369 qla2x00_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
370 {
371 scsi_qla_host_t *ha = shost_priv(cmd->device->host);
372 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
373 struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
374 srb_t *sp;
375 int rval;
376
377 if (unlikely(pci_channel_offline(ha->pdev))) {
378 cmd->result = DID_REQUEUE << 16;
379 goto qc_fail_command;
380 }
381
382 rval = fc_remote_port_chkready(rport);
383 if (rval) {
384 cmd->result = rval;
385 goto qc_fail_command;
386 }
387
388 /* Close window on fcport/rport state-transitioning. */
389 if (!*(fc_port_t **)rport->dd_data) {
390 cmd->result = DID_IMM_RETRY << 16;
391 goto qc_fail_command;
392 }
393
394 if (atomic_read(&fcport->state) != FCS_ONLINE) {
395 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
396 atomic_read(&ha->loop_state) == LOOP_DEAD) {
397 cmd->result = DID_NO_CONNECT << 16;
398 goto qc_fail_command;
399 }
400 goto qc_host_busy;
401 }
402
403 spin_unlock_irq(ha->host->host_lock);
404
405 sp = qla2x00_get_new_sp(ha, fcport, cmd, done);
406 if (!sp)
407 goto qc_host_busy_lock;
408
409 rval = qla2x00_start_scsi(sp);
410 if (rval != QLA_SUCCESS)
411 goto qc_host_busy_free_sp;
412
413 spin_lock_irq(ha->host->host_lock);
414
415 return 0;
416
417 qc_host_busy_free_sp:
418 qla2x00_sp_free_dma(ha, sp);
419 mempool_free(sp, ha->srb_mempool);
420
421 qc_host_busy_lock:
422 spin_lock_irq(ha->host->host_lock);
423
424 qc_host_busy:
425 return SCSI_MLQUEUE_HOST_BUSY;
426
427 qc_fail_command:
428 done(cmd);
429
430 return 0;
431 }
432
433
434 static int
435 qla24xx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
436 {
437 scsi_qla_host_t *ha = shost_priv(cmd->device->host);
438 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
439 struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
440 srb_t *sp;
441 int rval;
442 scsi_qla_host_t *pha = to_qla_parent(ha);
443
444 if (unlikely(pci_channel_offline(ha->pdev))) {
445 cmd->result = DID_REQUEUE << 16;
446 goto qc24_fail_command;
447 }
448
449 rval = fc_remote_port_chkready(rport);
450 if (rval) {
451 cmd->result = rval;
452 goto qc24_fail_command;
453 }
454
455 /* Close window on fcport/rport state-transitioning. */
456 if (!*(fc_port_t **)rport->dd_data) {
457 cmd->result = DID_IMM_RETRY << 16;
458 goto qc24_fail_command;
459 }
460
461 if (atomic_read(&fcport->state) != FCS_ONLINE) {
462 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
463 atomic_read(&pha->loop_state) == LOOP_DEAD) {
464 cmd->result = DID_NO_CONNECT << 16;
465 goto qc24_fail_command;
466 }
467 goto qc24_host_busy;
468 }
469
470 spin_unlock_irq(ha->host->host_lock);
471
472 sp = qla2x00_get_new_sp(pha, fcport, cmd, done);
473 if (!sp)
474 goto qc24_host_busy_lock;
475
476 rval = qla24xx_start_scsi(sp);
477 if (rval != QLA_SUCCESS)
478 goto qc24_host_busy_free_sp;
479
480 spin_lock_irq(ha->host->host_lock);
481
482 return 0;
483
484 qc24_host_busy_free_sp:
485 qla2x00_sp_free_dma(pha, sp);
486 mempool_free(sp, pha->srb_mempool);
487
488 qc24_host_busy_lock:
489 spin_lock_irq(ha->host->host_lock);
490
491 qc24_host_busy:
492 return SCSI_MLQUEUE_HOST_BUSY;
493
494 qc24_fail_command:
495 done(cmd);
496
497 return 0;
498 }
499
500
501 /*
502 * qla2x00_eh_wait_on_command
503 * Waits for the command to be returned by the Firmware for some
504 * max time.
505 *
506 * Input:
507 * ha = actual ha whose done queue will contain the command
508 * returned by firmware.
509 * cmd = Scsi Command to wait on.
510 * flag = Abort/Reset(Bus or Device Reset)
511 *
512 * Return:
513 * Not Found : 0
514 * Found : 1
515 */
516 static int
517 qla2x00_eh_wait_on_command(scsi_qla_host_t *ha, struct scsi_cmnd *cmd)
518 {
519 #define ABORT_POLLING_PERIOD 1000
520 #define ABORT_WAIT_ITER ((10 * 1000) / (ABORT_POLLING_PERIOD))
521 unsigned long wait_iter = ABORT_WAIT_ITER;
522 int ret = QLA_SUCCESS;
523
524 while (CMD_SP(cmd)) {
525 msleep(ABORT_POLLING_PERIOD);
526
527 if (--wait_iter)
528 break;
529 }
530 if (CMD_SP(cmd))
531 ret = QLA_FUNCTION_FAILED;
532
533 return ret;
534 }
535
536 /*
537 * qla2x00_wait_for_hba_online
538 * Wait till the HBA is online after going through
539 * <= MAX_RETRIES_OF_ISP_ABORT or
540 * finally HBA is disabled ie marked offline
541 *
542 * Input:
543 * ha - pointer to host adapter structure
544 *
545 * Note:
546 * Does context switching-Release SPIN_LOCK
547 * (if any) before calling this routine.
548 *
549 * Return:
550 * Success (Adapter is online) : 0
551 * Failed (Adapter is offline/disabled) : 1
552 */
553 int
554 qla2x00_wait_for_hba_online(scsi_qla_host_t *ha)
555 {
556 int return_status;
557 unsigned long wait_online;
558 scsi_qla_host_t *pha = to_qla_parent(ha);
559
560 wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
561 while (((test_bit(ISP_ABORT_NEEDED, &pha->dpc_flags)) ||
562 test_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags) ||
563 test_bit(ISP_ABORT_RETRY, &pha->dpc_flags) ||
564 pha->dpc_active) && time_before(jiffies, wait_online)) {
565
566 msleep(1000);
567 }
568 if (pha->flags.online)
569 return_status = QLA_SUCCESS;
570 else
571 return_status = QLA_FUNCTION_FAILED;
572
573 DEBUG2(printk("%s return_status=%d\n",__func__,return_status));
574
575 return (return_status);
576 }
577
578 /*
579 * qla2x00_wait_for_loop_ready
580 * Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
581 * to be in LOOP_READY state.
582 * Input:
583 * ha - pointer to host adapter structure
584 *
585 * Note:
586 * Does context switching-Release SPIN_LOCK
587 * (if any) before calling this routine.
588 *
589 *
590 * Return:
591 * Success (LOOP_READY) : 0
592 * Failed (LOOP_NOT_READY) : 1
593 */
594 static inline int
595 qla2x00_wait_for_loop_ready(scsi_qla_host_t *ha)
596 {
597 int return_status = QLA_SUCCESS;
598 unsigned long loop_timeout ;
599 scsi_qla_host_t *pha = to_qla_parent(ha);
600
601 /* wait for 5 min at the max for loop to be ready */
602 loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ);
603
604 while ((!atomic_read(&pha->loop_down_timer) &&
605 atomic_read(&pha->loop_state) == LOOP_DOWN) ||
606 atomic_read(&pha->loop_state) != LOOP_READY) {
607 if (atomic_read(&pha->loop_state) == LOOP_DEAD) {
608 return_status = QLA_FUNCTION_FAILED;
609 break;
610 }
611 msleep(1000);
612 if (time_after_eq(jiffies, loop_timeout)) {
613 return_status = QLA_FUNCTION_FAILED;
614 break;
615 }
616 }
617 return (return_status);
618 }
619
620 static void
621 qla2x00_block_error_handler(struct scsi_cmnd *cmnd)
622 {
623 struct Scsi_Host *shost = cmnd->device->host;
624 struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device));
625 unsigned long flags;
626
627 spin_lock_irqsave(shost->host_lock, flags);
628 while (rport->port_state == FC_PORTSTATE_BLOCKED) {
629 spin_unlock_irqrestore(shost->host_lock, flags);
630 msleep(1000);
631 spin_lock_irqsave(shost->host_lock, flags);
632 }
633 spin_unlock_irqrestore(shost->host_lock, flags);
634 return;
635 }
636
637 /**************************************************************************
638 * qla2xxx_eh_abort
639 *
640 * Description:
641 * The abort function will abort the specified command.
642 *
643 * Input:
644 * cmd = Linux SCSI command packet to be aborted.
645 *
646 * Returns:
647 * Either SUCCESS or FAILED.
648 *
649 * Note:
650 * Only return FAILED if command not returned by firmware.
651 **************************************************************************/
652 static int
653 qla2xxx_eh_abort(struct scsi_cmnd *cmd)
654 {
655 scsi_qla_host_t *ha = shost_priv(cmd->device->host);
656 srb_t *sp;
657 int ret, i;
658 unsigned int id, lun;
659 unsigned long serial;
660 unsigned long flags;
661 int wait = 0;
662 scsi_qla_host_t *pha = to_qla_parent(ha);
663
664 qla2x00_block_error_handler(cmd);
665
666 if (!CMD_SP(cmd))
667 return SUCCESS;
668
669 ret = SUCCESS;
670
671 id = cmd->device->id;
672 lun = cmd->device->lun;
673 serial = cmd->serial_number;
674
675 /* Check active list for command command. */
676 spin_lock_irqsave(&pha->hardware_lock, flags);
677 for (i = 1; i < MAX_OUTSTANDING_COMMANDS; i++) {
678 sp = pha->outstanding_cmds[i];
679
680 if (sp == NULL)
681 continue;
682
683 if (sp->cmd != cmd)
684 continue;
685
686 DEBUG2(printk("%s(%ld): aborting sp %p from RISC. pid=%ld.\n",
687 __func__, ha->host_no, sp, serial));
688 DEBUG3(qla2x00_print_scsi_cmd(cmd));
689
690 spin_unlock_irqrestore(&pha->hardware_lock, flags);
691 if (ha->isp_ops->abort_command(ha, sp)) {
692 DEBUG2(printk("%s(%ld): abort_command "
693 "mbx failed.\n", __func__, ha->host_no));
694 } else {
695 DEBUG3(printk("%s(%ld): abort_command "
696 "mbx success.\n", __func__, ha->host_no));
697 wait = 1;
698 }
699 spin_lock_irqsave(&pha->hardware_lock, flags);
700
701 break;
702 }
703 spin_unlock_irqrestore(&pha->hardware_lock, flags);
704
705 /* Wait for the command to be returned. */
706 if (wait) {
707 if (qla2x00_eh_wait_on_command(ha, cmd) != QLA_SUCCESS) {
708 qla_printk(KERN_ERR, ha,
709 "scsi(%ld:%d:%d): Abort handler timed out -- %lx "
710 "%x.\n", ha->host_no, id, lun, serial, ret);
711 ret = FAILED;
712 }
713 }
714
715 qla_printk(KERN_INFO, ha,
716 "scsi(%ld:%d:%d): Abort command issued -- %d %lx %x.\n",
717 ha->host_no, id, lun, wait, serial, ret);
718
719 return ret;
720 }
721
722 /**************************************************************************
723 * qla2x00_eh_wait_for_pending_target_commands
724 *
725 * Description:
726 * Waits for all the commands to come back from the specified target.
727 *
728 * Input:
729 * ha - pointer to scsi_qla_host structure.
730 * t - target
731 * Returns:
732 * Either SUCCESS or FAILED.
733 *
734 * Note:
735 **************************************************************************/
736 static int
737 qla2x00_eh_wait_for_pending_target_commands(scsi_qla_host_t *ha, unsigned int t)
738 {
739 int cnt;
740 int status;
741 srb_t *sp;
742 struct scsi_cmnd *cmd;
743 unsigned long flags;
744 scsi_qla_host_t *pha = to_qla_parent(ha);
745
746 status = 0;
747
748 /*
749 * Waiting for all commands for the designated target in the active
750 * array
751 */
752 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
753 spin_lock_irqsave(&pha->hardware_lock, flags);
754 sp = pha->outstanding_cmds[cnt];
755 if (sp) {
756 cmd = sp->cmd;
757 spin_unlock_irqrestore(&pha->hardware_lock, flags);
758 if (cmd->device->id == t &&
759 ha->vp_idx == sp->ha->vp_idx) {
760 if (!qla2x00_eh_wait_on_command(ha, cmd)) {
761 status = 1;
762 break;
763 }
764 }
765 } else {
766 spin_unlock_irqrestore(&pha->hardware_lock, flags);
767 }
768 }
769 return (status);
770 }
771
772
773 /**************************************************************************
774 * qla2xxx_eh_device_reset
775 *
776 * Description:
777 * The device reset function will reset the target and abort any
778 * executing commands.
779 *
780 * NOTE: The use of SP is undefined within this context. Do *NOT*
781 * attempt to use this value, even if you determine it is
782 * non-null.
783 *
784 * Input:
785 * cmd = Linux SCSI command packet of the command that cause the
786 * bus device reset.
787 *
788 * Returns:
789 * SUCCESS/FAILURE (defined as macro in scsi.h).
790 *
791 **************************************************************************/
792 static int
793 qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
794 {
795 scsi_qla_host_t *ha = shost_priv(cmd->device->host);
796 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
797 int ret = FAILED;
798 unsigned int id, lun;
799 unsigned long serial;
800
801 qla2x00_block_error_handler(cmd);
802
803 id = cmd->device->id;
804 lun = cmd->device->lun;
805 serial = cmd->serial_number;
806
807 if (!fcport)
808 return ret;
809
810 qla_printk(KERN_INFO, ha,
811 "scsi(%ld:%d:%d): DEVICE RESET ISSUED.\n", ha->host_no, id, lun);
812
813 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
814 goto eh_dev_reset_done;
815
816 if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
817 if (qla2x00_device_reset(ha, fcport) == 0)
818 ret = SUCCESS;
819
820 #if defined(LOGOUT_AFTER_DEVICE_RESET)
821 if (ret == SUCCESS) {
822 if (fcport->flags & FC_FABRIC_DEVICE) {
823 ha->isp_ops->fabric_logout(ha, fcport->loop_id);
824 qla2x00_mark_device_lost(ha, fcport, 0, 0);
825 }
826 }
827 #endif
828 } else {
829 DEBUG2(printk(KERN_INFO
830 "%s failed: loop not ready\n",__func__));
831 }
832
833 if (ret == FAILED) {
834 DEBUG3(printk("%s(%ld): device reset failed\n",
835 __func__, ha->host_no));
836 qla_printk(KERN_INFO, ha, "%s: device reset failed\n",
837 __func__);
838
839 goto eh_dev_reset_done;
840 }
841
842 /* Flush outstanding commands. */
843 if (qla2x00_eh_wait_for_pending_target_commands(ha, id))
844 ret = FAILED;
845 if (ret == FAILED) {
846 DEBUG3(printk("%s(%ld): failed while waiting for commands\n",
847 __func__, ha->host_no));
848 qla_printk(KERN_INFO, ha,
849 "%s: failed while waiting for commands\n", __func__);
850 } else
851 qla_printk(KERN_INFO, ha,
852 "scsi(%ld:%d:%d): DEVICE RESET SUCCEEDED.\n", ha->host_no,
853 id, lun);
854 eh_dev_reset_done:
855 return ret;
856 }
857
858 /**************************************************************************
859 * qla2x00_eh_wait_for_pending_commands
860 *
861 * Description:
862 * Waits for all the commands to come back from the specified host.
863 *
864 * Input:
865 * ha - pointer to scsi_qla_host structure.
866 *
867 * Returns:
868 * 1 : SUCCESS
869 * 0 : FAILED
870 *
871 * Note:
872 **************************************************************************/
873 static int
874 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *ha)
875 {
876 int cnt;
877 int status;
878 srb_t *sp;
879 struct scsi_cmnd *cmd;
880 unsigned long flags;
881
882 status = 1;
883
884 /*
885 * Waiting for all commands for the designated target in the active
886 * array
887 */
888 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
889 spin_lock_irqsave(&ha->hardware_lock, flags);
890 sp = ha->outstanding_cmds[cnt];
891 if (sp) {
892 cmd = sp->cmd;
893 spin_unlock_irqrestore(&ha->hardware_lock, flags);
894 status = qla2x00_eh_wait_on_command(ha, cmd);
895 if (status == 0)
896 break;
897 }
898 else {
899 spin_unlock_irqrestore(&ha->hardware_lock, flags);
900 }
901 }
902 return (status);
903 }
904
905
906 /**************************************************************************
907 * qla2xxx_eh_bus_reset
908 *
909 * Description:
910 * The bus reset function will reset the bus and abort any executing
911 * commands.
912 *
913 * Input:
914 * cmd = Linux SCSI command packet of the command that cause the
915 * bus reset.
916 *
917 * Returns:
918 * SUCCESS/FAILURE (defined as macro in scsi.h).
919 *
920 **************************************************************************/
921 static int
922 qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
923 {
924 scsi_qla_host_t *ha = shost_priv(cmd->device->host);
925 scsi_qla_host_t *pha = to_qla_parent(ha);
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
931 qla2x00_block_error_handler(cmd);
932
933 id = cmd->device->id;
934 lun = cmd->device->lun;
935 serial = cmd->serial_number;
936
937 if (!fcport)
938 return ret;
939
940 qla_printk(KERN_INFO, ha,
941 "scsi(%ld:%d:%d): LOOP RESET ISSUED.\n", ha->host_no, id, lun);
942
943 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS) {
944 DEBUG2(printk("%s failed:board disabled\n",__func__));
945 goto eh_bus_reset_done;
946 }
947
948 if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
949 if (qla2x00_loop_reset(ha) == QLA_SUCCESS)
950 ret = SUCCESS;
951 }
952 if (ret == FAILED)
953 goto eh_bus_reset_done;
954
955 /* Flush outstanding commands. */
956 if (!qla2x00_eh_wait_for_pending_commands(pha))
957 ret = FAILED;
958
959 eh_bus_reset_done:
960 qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
961 (ret == FAILED) ? "failed" : "succeded");
962
963 return ret;
964 }
965
966 /**************************************************************************
967 * qla2xxx_eh_host_reset
968 *
969 * Description:
970 * The reset function will reset the Adapter.
971 *
972 * Input:
973 * cmd = Linux SCSI command packet of the command that cause the
974 * adapter reset.
975 *
976 * Returns:
977 * Either SUCCESS or FAILED.
978 *
979 * Note:
980 **************************************************************************/
981 static int
982 qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
983 {
984 scsi_qla_host_t *ha = shost_priv(cmd->device->host);
985 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
986 int ret = FAILED;
987 unsigned int id, lun;
988 unsigned long serial;
989 scsi_qla_host_t *pha = to_qla_parent(ha);
990
991 qla2x00_block_error_handler(cmd);
992
993 id = cmd->device->id;
994 lun = cmd->device->lun;
995 serial = cmd->serial_number;
996
997 if (!fcport)
998 return ret;
999
1000 qla_printk(KERN_INFO, ha,
1001 "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", ha->host_no, id, lun);
1002
1003 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
1004 goto eh_host_reset_lock;
1005
1006 /*
1007 * Fixme-may be dpc thread is active and processing
1008 * loop_resync,so wait a while for it to
1009 * be completed and then issue big hammer.Otherwise
1010 * it may cause I/O failure as big hammer marks the
1011 * devices as lost kicking of the port_down_timer
1012 * while dpc is stuck for the mailbox to complete.
1013 */
1014 qla2x00_wait_for_loop_ready(ha);
1015 set_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags);
1016 if (qla2x00_abort_isp(pha)) {
1017 clear_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags);
1018 /* failed. schedule dpc to try */
1019 set_bit(ISP_ABORT_NEEDED, &pha->dpc_flags);
1020
1021 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
1022 goto eh_host_reset_lock;
1023 }
1024 clear_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags);
1025
1026 /* Waiting for our command in done_queue to be returned to OS.*/
1027 if (qla2x00_eh_wait_for_pending_commands(pha))
1028 ret = SUCCESS;
1029
1030 if (ha->parent)
1031 qla2x00_vp_abort_isp(ha);
1032
1033 eh_host_reset_lock:
1034 qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
1035 (ret == FAILED) ? "failed" : "succeded");
1036
1037 return ret;
1038 }
1039
1040 /*
1041 * qla2x00_loop_reset
1042 * Issue loop reset.
1043 *
1044 * Input:
1045 * ha = adapter block pointer.
1046 *
1047 * Returns:
1048 * 0 = success
1049 */
1050 int
1051 qla2x00_loop_reset(scsi_qla_host_t *ha)
1052 {
1053 int ret;
1054 struct fc_port *fcport;
1055
1056 if (ha->flags.enable_lip_full_login) {
1057 ret = qla2x00_full_login_lip(ha);
1058 if (ret != QLA_SUCCESS) {
1059 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1060 "full_login_lip=%d.\n", __func__, ha->host_no,
1061 ret));
1062 }
1063 atomic_set(&ha->loop_state, LOOP_DOWN);
1064 atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
1065 qla2x00_mark_all_devices_lost(ha, 0);
1066 qla2x00_wait_for_loop_ready(ha);
1067 }
1068
1069 if (ha->flags.enable_lip_reset) {
1070 ret = qla2x00_lip_reset(ha);
1071 if (ret != QLA_SUCCESS) {
1072 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1073 "lip_reset=%d.\n", __func__, ha->host_no, ret));
1074 }
1075 qla2x00_wait_for_loop_ready(ha);
1076 }
1077
1078 if (ha->flags.enable_target_reset) {
1079 list_for_each_entry(fcport, &ha->fcports, list) {
1080 if (fcport->port_type != FCT_TARGET)
1081 continue;
1082
1083 ret = qla2x00_device_reset(ha, fcport);
1084 if (ret != QLA_SUCCESS) {
1085 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1086 "target_reset=%d d_id=%x.\n", __func__,
1087 ha->host_no, ret, fcport->d_id.b24));
1088 }
1089 }
1090 }
1091
1092 /* Issue marker command only when we are going to start the I/O */
1093 ha->marker_needed = 1;
1094
1095 return QLA_SUCCESS;
1096 }
1097
1098 /*
1099 * qla2x00_device_reset
1100 * Issue bus device reset message to the target.
1101 *
1102 * Input:
1103 * ha = adapter block pointer.
1104 * t = SCSI ID.
1105 * TARGET_QUEUE_LOCK must be released.
1106 * ADAPTER_STATE_LOCK must be released.
1107 *
1108 * Context:
1109 * Kernel context.
1110 */
1111 static int
1112 qla2x00_device_reset(scsi_qla_host_t *ha, fc_port_t *reset_fcport)
1113 {
1114 /* Abort Target command will clear Reservation */
1115 return ha->isp_ops->abort_target(reset_fcport);
1116 }
1117
1118 void
1119 qla2x00_abort_all_cmds(scsi_qla_host_t *ha, int res)
1120 {
1121 int cnt;
1122 unsigned long flags;
1123 srb_t *sp;
1124
1125 spin_lock_irqsave(&ha->hardware_lock, flags);
1126 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
1127 sp = ha->outstanding_cmds[cnt];
1128 if (sp) {
1129 ha->outstanding_cmds[cnt] = NULL;
1130 sp->flags = 0;
1131 sp->cmd->result = res;
1132 sp->cmd->host_scribble = (unsigned char *)NULL;
1133 qla2x00_sp_compl(ha, sp);
1134 }
1135 }
1136 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1137 }
1138
1139 static int
1140 qla2xxx_slave_alloc(struct scsi_device *sdev)
1141 {
1142 struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1143
1144 if (!rport || fc_remote_port_chkready(rport))
1145 return -ENXIO;
1146
1147 sdev->hostdata = *(fc_port_t **)rport->dd_data;
1148
1149 return 0;
1150 }
1151
1152 static int
1153 qla2xxx_slave_configure(struct scsi_device *sdev)
1154 {
1155 scsi_qla_host_t *ha = shost_priv(sdev->host);
1156 struct fc_rport *rport = starget_to_rport(sdev->sdev_target);
1157
1158 if (sdev->tagged_supported)
1159 scsi_activate_tcq(sdev, ha->max_q_depth);
1160 else
1161 scsi_deactivate_tcq(sdev, ha->max_q_depth);
1162
1163 rport->dev_loss_tmo = ha->port_down_retry_count + 5;
1164
1165 return 0;
1166 }
1167
1168 static void
1169 qla2xxx_slave_destroy(struct scsi_device *sdev)
1170 {
1171 sdev->hostdata = NULL;
1172 }
1173
1174 static int
1175 qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth)
1176 {
1177 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1178 return sdev->queue_depth;
1179 }
1180
1181 static int
1182 qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1183 {
1184 if (sdev->tagged_supported) {
1185 scsi_set_tag_type(sdev, tag_type);
1186 if (tag_type)
1187 scsi_activate_tcq(sdev, sdev->queue_depth);
1188 else
1189 scsi_deactivate_tcq(sdev, sdev->queue_depth);
1190 } else
1191 tag_type = 0;
1192
1193 return tag_type;
1194 }
1195
1196 /**
1197 * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1198 * @ha: HA context
1199 *
1200 * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1201 * supported addressing method.
1202 */
1203 static void
1204 qla2x00_config_dma_addressing(scsi_qla_host_t *ha)
1205 {
1206 /* Assume a 32bit DMA mask. */
1207 ha->flags.enable_64bit_addressing = 0;
1208
1209 if (!dma_set_mask(&ha->pdev->dev, DMA_64BIT_MASK)) {
1210 /* Any upper-dword bits set? */
1211 if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1212 !pci_set_consistent_dma_mask(ha->pdev, DMA_64BIT_MASK)) {
1213 /* Ok, a 64bit DMA mask is applicable. */
1214 ha->flags.enable_64bit_addressing = 1;
1215 ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64;
1216 ha->isp_ops->build_iocbs = qla2x00_build_scsi_iocbs_64;
1217 return;
1218 }
1219 }
1220
1221 dma_set_mask(&ha->pdev->dev, DMA_32BIT_MASK);
1222 pci_set_consistent_dma_mask(ha->pdev, DMA_32BIT_MASK);
1223 }
1224
1225 static void
1226 qla2x00_enable_intrs(scsi_qla_host_t *ha)
1227 {
1228 unsigned long flags = 0;
1229 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1230
1231 spin_lock_irqsave(&ha->hardware_lock, flags);
1232 ha->interrupts_on = 1;
1233 /* enable risc and host interrupts */
1234 WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1235 RD_REG_WORD(&reg->ictrl);
1236 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1237
1238 }
1239
1240 static void
1241 qla2x00_disable_intrs(scsi_qla_host_t *ha)
1242 {
1243 unsigned long flags = 0;
1244 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1245
1246 spin_lock_irqsave(&ha->hardware_lock, flags);
1247 ha->interrupts_on = 0;
1248 /* disable risc and host interrupts */
1249 WRT_REG_WORD(&reg->ictrl, 0);
1250 RD_REG_WORD(&reg->ictrl);
1251 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1252 }
1253
1254 static void
1255 qla24xx_enable_intrs(scsi_qla_host_t *ha)
1256 {
1257 unsigned long flags = 0;
1258 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1259
1260 spin_lock_irqsave(&ha->hardware_lock, flags);
1261 ha->interrupts_on = 1;
1262 WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1263 RD_REG_DWORD(&reg->ictrl);
1264 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1265 }
1266
1267 static void
1268 qla24xx_disable_intrs(scsi_qla_host_t *ha)
1269 {
1270 unsigned long flags = 0;
1271 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1272
1273 spin_lock_irqsave(&ha->hardware_lock, flags);
1274 ha->interrupts_on = 0;
1275 WRT_REG_DWORD(&reg->ictrl, 0);
1276 RD_REG_DWORD(&reg->ictrl);
1277 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1278 }
1279
1280 static struct isp_operations qla2100_isp_ops = {
1281 .pci_config = qla2100_pci_config,
1282 .reset_chip = qla2x00_reset_chip,
1283 .chip_diag = qla2x00_chip_diag,
1284 .config_rings = qla2x00_config_rings,
1285 .reset_adapter = qla2x00_reset_adapter,
1286 .nvram_config = qla2x00_nvram_config,
1287 .update_fw_options = qla2x00_update_fw_options,
1288 .load_risc = qla2x00_load_risc,
1289 .pci_info_str = qla2x00_pci_info_str,
1290 .fw_version_str = qla2x00_fw_version_str,
1291 .intr_handler = qla2100_intr_handler,
1292 .enable_intrs = qla2x00_enable_intrs,
1293 .disable_intrs = qla2x00_disable_intrs,
1294 .abort_command = qla2x00_abort_command,
1295 .abort_target = qla2x00_abort_target,
1296 .fabric_login = qla2x00_login_fabric,
1297 .fabric_logout = qla2x00_fabric_logout,
1298 .calc_req_entries = qla2x00_calc_iocbs_32,
1299 .build_iocbs = qla2x00_build_scsi_iocbs_32,
1300 .prep_ms_iocb = qla2x00_prep_ms_iocb,
1301 .prep_ms_fdmi_iocb = qla2x00_prep_ms_fdmi_iocb,
1302 .read_nvram = qla2x00_read_nvram_data,
1303 .write_nvram = qla2x00_write_nvram_data,
1304 .fw_dump = qla2100_fw_dump,
1305 .beacon_on = NULL,
1306 .beacon_off = NULL,
1307 .beacon_blink = NULL,
1308 .read_optrom = qla2x00_read_optrom_data,
1309 .write_optrom = qla2x00_write_optrom_data,
1310 .get_flash_version = qla2x00_get_flash_version,
1311 };
1312
1313 static struct isp_operations qla2300_isp_ops = {
1314 .pci_config = qla2300_pci_config,
1315 .reset_chip = qla2x00_reset_chip,
1316 .chip_diag = qla2x00_chip_diag,
1317 .config_rings = qla2x00_config_rings,
1318 .reset_adapter = qla2x00_reset_adapter,
1319 .nvram_config = qla2x00_nvram_config,
1320 .update_fw_options = qla2x00_update_fw_options,
1321 .load_risc = qla2x00_load_risc,
1322 .pci_info_str = qla2x00_pci_info_str,
1323 .fw_version_str = qla2x00_fw_version_str,
1324 .intr_handler = qla2300_intr_handler,
1325 .enable_intrs = qla2x00_enable_intrs,
1326 .disable_intrs = qla2x00_disable_intrs,
1327 .abort_command = qla2x00_abort_command,
1328 .abort_target = qla2x00_abort_target,
1329 .fabric_login = qla2x00_login_fabric,
1330 .fabric_logout = qla2x00_fabric_logout,
1331 .calc_req_entries = qla2x00_calc_iocbs_32,
1332 .build_iocbs = qla2x00_build_scsi_iocbs_32,
1333 .prep_ms_iocb = qla2x00_prep_ms_iocb,
1334 .prep_ms_fdmi_iocb = qla2x00_prep_ms_fdmi_iocb,
1335 .read_nvram = qla2x00_read_nvram_data,
1336 .write_nvram = qla2x00_write_nvram_data,
1337 .fw_dump = qla2300_fw_dump,
1338 .beacon_on = qla2x00_beacon_on,
1339 .beacon_off = qla2x00_beacon_off,
1340 .beacon_blink = qla2x00_beacon_blink,
1341 .read_optrom = qla2x00_read_optrom_data,
1342 .write_optrom = qla2x00_write_optrom_data,
1343 .get_flash_version = qla2x00_get_flash_version,
1344 };
1345
1346 static struct isp_operations qla24xx_isp_ops = {
1347 .pci_config = qla24xx_pci_config,
1348 .reset_chip = qla24xx_reset_chip,
1349 .chip_diag = qla24xx_chip_diag,
1350 .config_rings = qla24xx_config_rings,
1351 .reset_adapter = qla24xx_reset_adapter,
1352 .nvram_config = qla24xx_nvram_config,
1353 .update_fw_options = qla24xx_update_fw_options,
1354 .load_risc = qla24xx_load_risc,
1355 .pci_info_str = qla24xx_pci_info_str,
1356 .fw_version_str = qla24xx_fw_version_str,
1357 .intr_handler = qla24xx_intr_handler,
1358 .enable_intrs = qla24xx_enable_intrs,
1359 .disable_intrs = qla24xx_disable_intrs,
1360 .abort_command = qla24xx_abort_command,
1361 .abort_target = qla24xx_abort_target,
1362 .fabric_login = qla24xx_login_fabric,
1363 .fabric_logout = qla24xx_fabric_logout,
1364 .calc_req_entries = NULL,
1365 .build_iocbs = NULL,
1366 .prep_ms_iocb = qla24xx_prep_ms_iocb,
1367 .prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb,
1368 .read_nvram = qla24xx_read_nvram_data,
1369 .write_nvram = qla24xx_write_nvram_data,
1370 .fw_dump = qla24xx_fw_dump,
1371 .beacon_on = qla24xx_beacon_on,
1372 .beacon_off = qla24xx_beacon_off,
1373 .beacon_blink = qla24xx_beacon_blink,
1374 .read_optrom = qla24xx_read_optrom_data,
1375 .write_optrom = qla24xx_write_optrom_data,
1376 .get_flash_version = qla24xx_get_flash_version,
1377 };
1378
1379 static struct isp_operations qla25xx_isp_ops = {
1380 .pci_config = qla25xx_pci_config,
1381 .reset_chip = qla24xx_reset_chip,
1382 .chip_diag = qla24xx_chip_diag,
1383 .config_rings = qla24xx_config_rings,
1384 .reset_adapter = qla24xx_reset_adapter,
1385 .nvram_config = qla24xx_nvram_config,
1386 .update_fw_options = qla24xx_update_fw_options,
1387 .load_risc = qla24xx_load_risc,
1388 .pci_info_str = qla24xx_pci_info_str,
1389 .fw_version_str = qla24xx_fw_version_str,
1390 .intr_handler = qla24xx_intr_handler,
1391 .enable_intrs = qla24xx_enable_intrs,
1392 .disable_intrs = qla24xx_disable_intrs,
1393 .abort_command = qla24xx_abort_command,
1394 .abort_target = qla24xx_abort_target,
1395 .fabric_login = qla24xx_login_fabric,
1396 .fabric_logout = qla24xx_fabric_logout,
1397 .calc_req_entries = NULL,
1398 .build_iocbs = NULL,
1399 .prep_ms_iocb = qla24xx_prep_ms_iocb,
1400 .prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb,
1401 .read_nvram = qla25xx_read_nvram_data,
1402 .write_nvram = qla25xx_write_nvram_data,
1403 .fw_dump = qla25xx_fw_dump,
1404 .beacon_on = qla24xx_beacon_on,
1405 .beacon_off = qla24xx_beacon_off,
1406 .beacon_blink = qla24xx_beacon_blink,
1407 .read_optrom = qla25xx_read_optrom_data,
1408 .write_optrom = qla24xx_write_optrom_data,
1409 .get_flash_version = qla24xx_get_flash_version,
1410 };
1411
1412 static inline void
1413 qla2x00_set_isp_flags(scsi_qla_host_t *ha)
1414 {
1415 ha->device_type = DT_EXTENDED_IDS;
1416 switch (ha->pdev->device) {
1417 case PCI_DEVICE_ID_QLOGIC_ISP2100:
1418 ha->device_type |= DT_ISP2100;
1419 ha->device_type &= ~DT_EXTENDED_IDS;
1420 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1421 break;
1422 case PCI_DEVICE_ID_QLOGIC_ISP2200:
1423 ha->device_type |= DT_ISP2200;
1424 ha->device_type &= ~DT_EXTENDED_IDS;
1425 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1426 break;
1427 case PCI_DEVICE_ID_QLOGIC_ISP2300:
1428 ha->device_type |= DT_ISP2300;
1429 ha->device_type |= DT_ZIO_SUPPORTED;
1430 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1431 break;
1432 case PCI_DEVICE_ID_QLOGIC_ISP2312:
1433 ha->device_type |= DT_ISP2312;
1434 ha->device_type |= DT_ZIO_SUPPORTED;
1435 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1436 break;
1437 case PCI_DEVICE_ID_QLOGIC_ISP2322:
1438 ha->device_type |= DT_ISP2322;
1439 ha->device_type |= DT_ZIO_SUPPORTED;
1440 if (ha->pdev->subsystem_vendor == 0x1028 &&
1441 ha->pdev->subsystem_device == 0x0170)
1442 ha->device_type |= DT_OEM_001;
1443 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1444 break;
1445 case PCI_DEVICE_ID_QLOGIC_ISP6312:
1446 ha->device_type |= DT_ISP6312;
1447 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1448 break;
1449 case PCI_DEVICE_ID_QLOGIC_ISP6322:
1450 ha->device_type |= DT_ISP6322;
1451 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1452 break;
1453 case PCI_DEVICE_ID_QLOGIC_ISP2422:
1454 ha->device_type |= DT_ISP2422;
1455 ha->device_type |= DT_ZIO_SUPPORTED;
1456 ha->device_type |= DT_FWI2;
1457 ha->device_type |= DT_IIDMA;
1458 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1459 break;
1460 case PCI_DEVICE_ID_QLOGIC_ISP2432:
1461 ha->device_type |= DT_ISP2432;
1462 ha->device_type |= DT_ZIO_SUPPORTED;
1463 ha->device_type |= DT_FWI2;
1464 ha->device_type |= DT_IIDMA;
1465 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1466 break;
1467 case PCI_DEVICE_ID_QLOGIC_ISP5422:
1468 ha->device_type |= DT_ISP5422;
1469 ha->device_type |= DT_FWI2;
1470 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1471 break;
1472 case PCI_DEVICE_ID_QLOGIC_ISP5432:
1473 ha->device_type |= DT_ISP5432;
1474 ha->device_type |= DT_FWI2;
1475 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1476 break;
1477 case PCI_DEVICE_ID_QLOGIC_ISP2532:
1478 ha->device_type |= DT_ISP2532;
1479 ha->device_type |= DT_ZIO_SUPPORTED;
1480 ha->device_type |= DT_FWI2;
1481 ha->device_type |= DT_IIDMA;
1482 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1483 break;
1484 }
1485 }
1486
1487 static int
1488 qla2x00_iospace_config(scsi_qla_host_t *ha)
1489 {
1490 resource_size_t pio;
1491
1492 if (pci_request_selected_regions(ha->pdev, ha->bars,
1493 QLA2XXX_DRIVER_NAME)) {
1494 qla_printk(KERN_WARNING, ha,
1495 "Failed to reserve PIO/MMIO regions (%s)\n",
1496 pci_name(ha->pdev));
1497
1498 goto iospace_error_exit;
1499 }
1500 if (!(ha->bars & 1))
1501 goto skip_pio;
1502
1503 /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1504 pio = pci_resource_start(ha->pdev, 0);
1505 if (pci_resource_flags(ha->pdev, 0) & IORESOURCE_IO) {
1506 if (pci_resource_len(ha->pdev, 0) < MIN_IOBASE_LEN) {
1507 qla_printk(KERN_WARNING, ha,
1508 "Invalid PCI I/O region size (%s)...\n",
1509 pci_name(ha->pdev));
1510 pio = 0;
1511 }
1512 } else {
1513 qla_printk(KERN_WARNING, ha,
1514 "region #0 not a PIO resource (%s)...\n",
1515 pci_name(ha->pdev));
1516 pio = 0;
1517 }
1518 ha->pio_address = pio;
1519
1520 skip_pio:
1521 /* Use MMIO operations for all accesses. */
1522 if (!(pci_resource_flags(ha->pdev, 1) & IORESOURCE_MEM)) {
1523 qla_printk(KERN_ERR, ha,
1524 "region #1 not an MMIO resource (%s), aborting\n",
1525 pci_name(ha->pdev));
1526 goto iospace_error_exit;
1527 }
1528 if (pci_resource_len(ha->pdev, 1) < MIN_IOBASE_LEN) {
1529 qla_printk(KERN_ERR, ha,
1530 "Invalid PCI mem region size (%s), aborting\n",
1531 pci_name(ha->pdev));
1532 goto iospace_error_exit;
1533 }
1534
1535 ha->iobase = ioremap(pci_resource_start(ha->pdev, 1), MIN_IOBASE_LEN);
1536 if (!ha->iobase) {
1537 qla_printk(KERN_ERR, ha,
1538 "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
1539
1540 goto iospace_error_exit;
1541 }
1542
1543 return (0);
1544
1545 iospace_error_exit:
1546 return (-ENOMEM);
1547 }
1548
1549 static void
1550 qla2xxx_scan_start(struct Scsi_Host *shost)
1551 {
1552 scsi_qla_host_t *ha = shost_priv(shost);
1553
1554 set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
1555 set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
1556 set_bit(RSCN_UPDATE, &ha->dpc_flags);
1557 }
1558
1559 static int
1560 qla2xxx_scan_finished(struct Scsi_Host *shost, unsigned long time)
1561 {
1562 scsi_qla_host_t *ha = shost_priv(shost);
1563
1564 if (!ha->host)
1565 return 1;
1566 if (time > ha->loop_reset_delay * HZ)
1567 return 1;
1568
1569 return atomic_read(&ha->loop_state) == LOOP_READY;
1570 }
1571
1572 /*
1573 * PCI driver interface
1574 */
1575 static int __devinit
1576 qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
1577 {
1578 int ret = -ENODEV;
1579 struct Scsi_Host *host;
1580 scsi_qla_host_t *ha;
1581 char pci_info[30];
1582 char fw_str[30];
1583 struct scsi_host_template *sht;
1584 int bars, mem_only = 0;
1585
1586 bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO);
1587 sht = &qla2x00_driver_template;
1588 if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
1589 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432 ||
1590 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5422 ||
1591 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5432 ||
1592 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2532) {
1593 bars = pci_select_bars(pdev, IORESOURCE_MEM);
1594 sht = &qla24xx_driver_template;
1595 mem_only = 1;
1596 }
1597
1598 if (mem_only) {
1599 if (pci_enable_device_mem(pdev))
1600 goto probe_out;
1601 } else {
1602 if (pci_enable_device(pdev))
1603 goto probe_out;
1604 }
1605
1606 if (pci_find_aer_capability(pdev))
1607 if (pci_enable_pcie_error_reporting(pdev))
1608 goto probe_out;
1609
1610 host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
1611 if (host == NULL) {
1612 printk(KERN_WARNING
1613 "qla2xxx: Couldn't allocate host from scsi layer!\n");
1614 goto probe_disable_device;
1615 }
1616
1617 /* Clear our data area */
1618 ha = shost_priv(host);
1619 memset(ha, 0, sizeof(scsi_qla_host_t));
1620
1621 ha->pdev = pdev;
1622 ha->host = host;
1623 ha->host_no = host->host_no;
1624 sprintf(ha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, ha->host_no);
1625 ha->parent = NULL;
1626 ha->bars = bars;
1627 ha->mem_only = mem_only;
1628 spin_lock_init(&ha->hardware_lock);
1629
1630 /* Set ISP-type information. */
1631 qla2x00_set_isp_flags(ha);
1632
1633 /* Configure PCI I/O space */
1634 ret = qla2x00_iospace_config(ha);
1635 if (ret)
1636 goto probe_failed;
1637
1638 qla_printk(KERN_INFO, ha,
1639 "Found an ISP%04X, irq %d, iobase 0x%p\n", pdev->device, pdev->irq,
1640 ha->iobase);
1641
1642 ha->prev_topology = 0;
1643 ha->init_cb_size = sizeof(init_cb_t);
1644 ha->mgmt_svr_loop_id = MANAGEMENT_SERVER + ha->vp_idx;
1645 ha->link_data_rate = PORT_SPEED_UNKNOWN;
1646 ha->optrom_size = OPTROM_SIZE_2300;
1647
1648 ha->max_q_depth = MAX_Q_DEPTH;
1649 if (ql2xmaxqdepth != 0 && ql2xmaxqdepth <= 0xffffU)
1650 ha->max_q_depth = ql2xmaxqdepth;
1651
1652 /* Assign ISP specific operations. */
1653 if (IS_QLA2100(ha)) {
1654 host->max_id = MAX_TARGETS_2100;
1655 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
1656 ha->request_q_length = REQUEST_ENTRY_CNT_2100;
1657 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1658 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1659 host->sg_tablesize = 32;
1660 ha->gid_list_info_size = 4;
1661 ha->isp_ops = &qla2100_isp_ops;
1662 } else if (IS_QLA2200(ha)) {
1663 host->max_id = MAX_TARGETS_2200;
1664 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1665 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1666 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1667 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1668 ha->gid_list_info_size = 4;
1669 ha->isp_ops = &qla2100_isp_ops;
1670 } else if (IS_QLA23XX(ha)) {
1671 host->max_id = MAX_TARGETS_2200;
1672 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1673 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1674 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1675 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1676 ha->gid_list_info_size = 6;
1677 if (IS_QLA2322(ha) || IS_QLA6322(ha))
1678 ha->optrom_size = OPTROM_SIZE_2322;
1679 ha->isp_ops = &qla2300_isp_ops;
1680 } else if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
1681 host->max_id = MAX_TARGETS_2200;
1682 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1683 ha->request_q_length = REQUEST_ENTRY_CNT_24XX;
1684 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1685 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1686 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
1687 ha->mgmt_svr_loop_id = 10 + ha->vp_idx;
1688 ha->gid_list_info_size = 8;
1689 ha->optrom_size = OPTROM_SIZE_24XX;
1690 ha->isp_ops = &qla24xx_isp_ops;
1691 } else if (IS_QLA25XX(ha)) {
1692 host->max_id = MAX_TARGETS_2200;
1693 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1694 ha->request_q_length = REQUEST_ENTRY_CNT_24XX;
1695 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1696 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1697 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
1698 ha->mgmt_svr_loop_id = 10 + ha->vp_idx;
1699 ha->gid_list_info_size = 8;
1700 ha->optrom_size = OPTROM_SIZE_25XX;
1701 ha->isp_ops = &qla25xx_isp_ops;
1702 }
1703 host->can_queue = ha->request_q_length + 128;
1704
1705 /* load the F/W, read paramaters, and init the H/W */
1706 ha->instance = num_hosts;
1707
1708 init_MUTEX(&ha->vport_sem);
1709 init_completion(&ha->mbx_cmd_comp);
1710 complete(&ha->mbx_cmd_comp);
1711 init_completion(&ha->mbx_intr_comp);
1712
1713 INIT_LIST_HEAD(&ha->list);
1714 INIT_LIST_HEAD(&ha->fcports);
1715 INIT_LIST_HEAD(&ha->vp_list);
1716
1717 set_bit(0, (unsigned long *) ha->vp_idx_map);
1718
1719 qla2x00_config_dma_addressing(ha);
1720 if (qla2x00_mem_alloc(ha)) {
1721 qla_printk(KERN_WARNING, ha,
1722 "[ERROR] Failed to allocate memory for adapter\n");
1723
1724 ret = -ENOMEM;
1725 goto probe_failed;
1726 }
1727
1728 if (qla2x00_initialize_adapter(ha)) {
1729 qla_printk(KERN_WARNING, ha,
1730 "Failed to initialize adapter\n");
1731
1732 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
1733 "Adapter flags %x.\n",
1734 ha->host_no, ha->device_flags));
1735
1736 ret = -ENODEV;
1737 goto probe_failed;
1738 }
1739
1740 /*
1741 * Startup the kernel thread for this host adapter
1742 */
1743 ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
1744 "%s_dpc", ha->host_str);
1745 if (IS_ERR(ha->dpc_thread)) {
1746 qla_printk(KERN_WARNING, ha,
1747 "Unable to start DPC thread!\n");
1748 ret = PTR_ERR(ha->dpc_thread);
1749 goto probe_failed;
1750 }
1751
1752 host->this_id = 255;
1753 host->cmd_per_lun = 3;
1754 host->unique_id = ha->instance;
1755 host->max_cmd_len = MAX_CMDSZ;
1756 host->max_channel = MAX_BUSES - 1;
1757 host->max_lun = MAX_LUNS;
1758 host->transportt = qla2xxx_transport_template;
1759
1760 ret = qla2x00_request_irqs(ha);
1761 if (ret)
1762 goto probe_failed;
1763
1764 /* Initialized the timer */
1765 qla2x00_start_timer(ha, qla2x00_timer, WATCH_INTERVAL);
1766
1767 DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
1768 ha->host_no, ha));
1769
1770 pci_set_drvdata(pdev, ha);
1771
1772 ha->flags.init_done = 1;
1773 ha->flags.online = 1;
1774
1775 num_hosts++;
1776
1777 ret = scsi_add_host(host, &pdev->dev);
1778 if (ret)
1779 goto probe_failed;
1780
1781 scsi_scan_host(host);
1782
1783 qla2x00_alloc_sysfs_attr(ha);
1784
1785 qla2x00_init_host_attr(ha);
1786
1787 qla2x00_dfs_setup(ha);
1788
1789 qla_printk(KERN_INFO, ha, "\n"
1790 " QLogic Fibre Channel HBA Driver: %s\n"
1791 " QLogic %s - %s\n"
1792 " ISP%04X: %s @ %s hdma%c, host#=%ld, fw=%s\n",
1793 qla2x00_version_str, ha->model_number,
1794 ha->model_desc ? ha->model_desc: "", pdev->device,
1795 ha->isp_ops->pci_info_str(ha, pci_info), pci_name(pdev),
1796 ha->flags.enable_64bit_addressing ? '+': '-', ha->host_no,
1797 ha->isp_ops->fw_version_str(ha, fw_str));
1798
1799 return 0;
1800
1801 probe_failed:
1802 qla2x00_free_device(ha);
1803
1804 scsi_host_put(host);
1805
1806 probe_disable_device:
1807 pci_disable_device(pdev);
1808
1809 probe_out:
1810 return ret;
1811 }
1812
1813 static void
1814 qla2x00_remove_one(struct pci_dev *pdev)
1815 {
1816 scsi_qla_host_t *ha;
1817
1818 ha = pci_get_drvdata(pdev);
1819
1820 qla2x00_dfs_remove(ha);
1821
1822 qla2x00_free_sysfs_attr(ha);
1823
1824 fc_remove_host(ha->host);
1825
1826 scsi_remove_host(ha->host);
1827
1828 qla2x00_free_device(ha);
1829
1830 scsi_host_put(ha->host);
1831
1832 pci_disable_device(pdev);
1833 pci_set_drvdata(pdev, NULL);
1834 }
1835
1836 static void
1837 qla2x00_free_device(scsi_qla_host_t *ha)
1838 {
1839 qla2x00_abort_all_cmds(ha, DID_NO_CONNECT << 16);
1840
1841 /* Disable timer */
1842 if (ha->timer_active)
1843 qla2x00_stop_timer(ha);
1844
1845 ha->flags.online = 0;
1846
1847 /* Kill the kernel thread for this host */
1848 if (ha->dpc_thread) {
1849 struct task_struct *t = ha->dpc_thread;
1850
1851 /*
1852 * qla2xxx_wake_dpc checks for ->dpc_thread
1853 * so we need to zero it out.
1854 */
1855 ha->dpc_thread = NULL;
1856 kthread_stop(t);
1857 }
1858
1859 if (ha->flags.fce_enabled)
1860 qla2x00_disable_fce_trace(ha, NULL, NULL);
1861
1862 if (ha->eft)
1863 qla2x00_disable_eft_trace(ha);
1864
1865 /* Stop currently executing firmware. */
1866 qla2x00_try_to_stop_firmware(ha);
1867
1868 /* turn-off interrupts on the card */
1869 if (ha->interrupts_on)
1870 ha->isp_ops->disable_intrs(ha);
1871
1872 qla2x00_mem_free(ha);
1873
1874 qla2x00_free_irqs(ha);
1875
1876 /* release io space registers */
1877 if (ha->iobase)
1878 iounmap(ha->iobase);
1879 pci_release_selected_regions(ha->pdev, ha->bars);
1880 }
1881
1882 static inline void
1883 qla2x00_schedule_rport_del(struct scsi_qla_host *ha, fc_port_t *fcport,
1884 int defer)
1885 {
1886 unsigned long flags;
1887 struct fc_rport *rport;
1888
1889 if (!fcport->rport)
1890 return;
1891
1892 rport = fcport->rport;
1893 if (defer) {
1894 spin_lock_irqsave(&fcport->rport_lock, flags);
1895 fcport->drport = rport;
1896 fcport->rport = NULL;
1897 *(fc_port_t **)rport->dd_data = NULL;
1898 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1899 set_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags);
1900 } else {
1901 spin_lock_irqsave(&fcport->rport_lock, flags);
1902 fcport->rport = NULL;
1903 *(fc_port_t **)rport->dd_data = NULL;
1904 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1905 fc_remote_port_delete(rport);
1906 }
1907 }
1908
1909 /*
1910 * qla2x00_mark_device_lost Updates fcport state when device goes offline.
1911 *
1912 * Input: ha = adapter block pointer. fcport = port structure pointer.
1913 *
1914 * Return: None.
1915 *
1916 * Context:
1917 */
1918 void qla2x00_mark_device_lost(scsi_qla_host_t *ha, fc_port_t *fcport,
1919 int do_login, int defer)
1920 {
1921 if (atomic_read(&fcport->state) == FCS_ONLINE &&
1922 ha->vp_idx == fcport->vp_idx)
1923 qla2x00_schedule_rport_del(ha, fcport, defer);
1924
1925 /*
1926 * We may need to retry the login, so don't change the state of the
1927 * port but do the retries.
1928 */
1929 if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
1930 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1931
1932 if (!do_login)
1933 return;
1934
1935 if (fcport->login_retry == 0) {
1936 fcport->login_retry = ha->login_retry_count;
1937 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
1938
1939 DEBUG(printk("scsi(%ld): Port login retry: "
1940 "%02x%02x%02x%02x%02x%02x%02x%02x, "
1941 "id = 0x%04x retry cnt=%d\n",
1942 ha->host_no,
1943 fcport->port_name[0],
1944 fcport->port_name[1],
1945 fcport->port_name[2],
1946 fcport->port_name[3],
1947 fcport->port_name[4],
1948 fcport->port_name[5],
1949 fcport->port_name[6],
1950 fcport->port_name[7],
1951 fcport->loop_id,
1952 fcport->login_retry));
1953 }
1954 }
1955
1956 /*
1957 * qla2x00_mark_all_devices_lost
1958 * Updates fcport state when device goes offline.
1959 *
1960 * Input:
1961 * ha = adapter block pointer.
1962 * fcport = port structure pointer.
1963 *
1964 * Return:
1965 * None.
1966 *
1967 * Context:
1968 */
1969 void
1970 qla2x00_mark_all_devices_lost(scsi_qla_host_t *ha, int defer)
1971 {
1972 fc_port_t *fcport;
1973 scsi_qla_host_t *pha = to_qla_parent(ha);
1974
1975 list_for_each_entry(fcport, &pha->fcports, list) {
1976 if (ha->vp_idx != 0 && ha->vp_idx != fcport->vp_idx)
1977 continue;
1978 /*
1979 * No point in marking the device as lost, if the device is
1980 * already DEAD.
1981 */
1982 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
1983 continue;
1984 if (atomic_read(&fcport->state) == FCS_ONLINE) {
1985 if (defer)
1986 qla2x00_schedule_rport_del(ha, fcport, defer);
1987 else if (ha->vp_idx == fcport->vp_idx)
1988 qla2x00_schedule_rport_del(ha, fcport, defer);
1989 }
1990 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1991 }
1992
1993 if (defer)
1994 qla2xxx_wake_dpc(ha);
1995 }
1996
1997 /*
1998 * qla2x00_mem_alloc
1999 * Allocates adapter memory.
2000 *
2001 * Returns:
2002 * 0 = success.
2003 * !0 = failure.
2004 */
2005 static int
2006 qla2x00_mem_alloc(scsi_qla_host_t *ha)
2007 {
2008 char name[16];
2009
2010 ha->request_ring = dma_alloc_coherent(&ha->pdev->dev,
2011 (ha->request_q_length + 1) * sizeof(request_t), &ha->request_dma,
2012 GFP_KERNEL);
2013 if (!ha->request_ring)
2014 goto fail;
2015
2016 ha->response_ring = dma_alloc_coherent(&ha->pdev->dev,
2017 (ha->response_q_length + 1) * sizeof(response_t),
2018 &ha->response_dma, GFP_KERNEL);
2019 if (!ha->response_ring)
2020 goto fail_free_request_ring;
2021
2022 ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
2023 &ha->gid_list_dma, GFP_KERNEL);
2024 if (!ha->gid_list)
2025 goto fail_free_response_ring;
2026
2027 ha->init_cb = dma_alloc_coherent(&ha->pdev->dev, ha->init_cb_size,
2028 &ha->init_cb_dma, GFP_KERNEL);
2029 if (!ha->init_cb)
2030 goto fail_free_gid_list;
2031
2032 snprintf(name, sizeof(name), "%s_%ld", QLA2XXX_DRIVER_NAME,
2033 ha->host_no);
2034 ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
2035 DMA_POOL_SIZE, 8, 0);
2036 if (!ha->s_dma_pool)
2037 goto fail_free_init_cb;
2038
2039 ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
2040 if (!ha->srb_mempool)
2041 goto fail_free_s_dma_pool;
2042
2043 /* Get memory for cached NVRAM */
2044 ha->nvram = kzalloc(MAX_NVRAM_SIZE, GFP_KERNEL);
2045 if (!ha->nvram)
2046 goto fail_free_srb_mempool;
2047
2048 /* Allocate memory for SNS commands */
2049 if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
2050 /* Get consistent memory allocated for SNS commands */
2051 ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
2052 sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma, GFP_KERNEL);
2053 if (!ha->sns_cmd)
2054 goto fail_free_nvram;
2055 } else {
2056 /* Get consistent memory allocated for MS IOCB */
2057 ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2058 &ha->ms_iocb_dma);
2059 if (!ha->ms_iocb)
2060 goto fail_free_nvram;
2061
2062 /* Get consistent memory allocated for CT SNS commands */
2063 ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
2064 sizeof(struct ct_sns_pkt), &ha->ct_sns_dma, GFP_KERNEL);
2065 if (!ha->ct_sns)
2066 goto fail_free_ms_iocb;
2067 }
2068
2069 return 0;
2070
2071 fail_free_ms_iocb:
2072 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2073 ha->ms_iocb = NULL;
2074 ha->ms_iocb_dma = 0;
2075 fail_free_nvram:
2076 kfree(ha->nvram);
2077 ha->nvram = NULL;
2078 fail_free_srb_mempool:
2079 mempool_destroy(ha->srb_mempool);
2080 ha->srb_mempool = NULL;
2081 fail_free_s_dma_pool:
2082 dma_pool_destroy(ha->s_dma_pool);
2083 ha->s_dma_pool = NULL;
2084 fail_free_init_cb:
2085 dma_free_coherent(&ha->pdev->dev, ha->init_cb_size, ha->init_cb,
2086 ha->init_cb_dma);
2087 ha->init_cb = NULL;
2088 ha->init_cb_dma = 0;
2089 fail_free_gid_list:
2090 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2091 ha->gid_list_dma);
2092 ha->gid_list = NULL;
2093 ha->gid_list_dma = 0;
2094 fail_free_response_ring:
2095 dma_free_coherent(&ha->pdev->dev, (ha->response_q_length + 1) *
2096 sizeof(response_t), ha->response_ring, ha->response_dma);
2097 ha->response_ring = NULL;
2098 ha->response_dma = 0;
2099 fail_free_request_ring:
2100 dma_free_coherent(&ha->pdev->dev, (ha->request_q_length + 1) *
2101 sizeof(request_t), ha->request_ring, ha->request_dma);
2102 ha->request_ring = NULL;
2103 ha->request_dma = 0;
2104 fail:
2105 return -ENOMEM;
2106 }
2107
2108 /*
2109 * qla2x00_mem_free
2110 * Frees all adapter allocated memory.
2111 *
2112 * Input:
2113 * ha = adapter block pointer.
2114 */
2115 static void
2116 qla2x00_mem_free(scsi_qla_host_t *ha)
2117 {
2118 struct list_head *fcpl, *fcptemp;
2119 fc_port_t *fcport;
2120
2121 if (ha->srb_mempool)
2122 mempool_destroy(ha->srb_mempool);
2123
2124 if (ha->fce)
2125 dma_free_coherent(&ha->pdev->dev, FCE_SIZE, ha->fce,
2126 ha->fce_dma);
2127
2128 if (ha->fw_dump) {
2129 if (ha->eft)
2130 dma_free_coherent(&ha->pdev->dev,
2131 ntohl(ha->fw_dump->eft_size), ha->eft, ha->eft_dma);
2132 vfree(ha->fw_dump);
2133 }
2134
2135 if (ha->sns_cmd)
2136 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
2137 ha->sns_cmd, ha->sns_cmd_dma);
2138
2139 if (ha->ct_sns)
2140 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2141 ha->ct_sns, ha->ct_sns_dma);
2142
2143 if (ha->sfp_data)
2144 dma_pool_free(ha->s_dma_pool, ha->sfp_data, ha->sfp_data_dma);
2145
2146 if (ha->ms_iocb)
2147 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2148
2149 if (ha->s_dma_pool)
2150 dma_pool_destroy(ha->s_dma_pool);
2151
2152 if (ha->init_cb)
2153 dma_free_coherent(&ha->pdev->dev, ha->init_cb_size,
2154 ha->init_cb, ha->init_cb_dma);
2155
2156 if (ha->gid_list)
2157 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2158 ha->gid_list_dma);
2159
2160 if (ha->response_ring)
2161 dma_free_coherent(&ha->pdev->dev,
2162 (ha->response_q_length + 1) * sizeof(response_t),
2163 ha->response_ring, ha->response_dma);
2164
2165 if (ha->request_ring)
2166 dma_free_coherent(&ha->pdev->dev,
2167 (ha->request_q_length + 1) * sizeof(request_t),
2168 ha->request_ring, ha->request_dma);
2169
2170 ha->srb_mempool = NULL;
2171 ha->eft = NULL;
2172 ha->eft_dma = 0;
2173 ha->sns_cmd = NULL;
2174 ha->sns_cmd_dma = 0;
2175 ha->ct_sns = NULL;
2176 ha->ct_sns_dma = 0;
2177 ha->ms_iocb = NULL;
2178 ha->ms_iocb_dma = 0;
2179 ha->init_cb = NULL;
2180 ha->init_cb_dma = 0;
2181
2182 ha->s_dma_pool = NULL;
2183
2184 ha->gid_list = NULL;
2185 ha->gid_list_dma = 0;
2186
2187 ha->response_ring = NULL;
2188 ha->response_dma = 0;
2189 ha->request_ring = NULL;
2190 ha->request_dma = 0;
2191
2192 list_for_each_safe(fcpl, fcptemp, &ha->fcports) {
2193 fcport = list_entry(fcpl, fc_port_t, list);
2194
2195 /* fc ports */
2196 list_del_init(&fcport->list);
2197 kfree(fcport);
2198 }
2199 INIT_LIST_HEAD(&ha->fcports);
2200
2201 ha->fw_dump = NULL;
2202 ha->fw_dumped = 0;
2203 ha->fw_dump_reading = 0;
2204
2205 vfree(ha->optrom_buffer);
2206 kfree(ha->nvram);
2207 }
2208
2209 /**************************************************************************
2210 * qla2x00_do_dpc
2211 * This kernel thread is a task that is schedule by the interrupt handler
2212 * to perform the background processing for interrupts.
2213 *
2214 * Notes:
2215 * This task always run in the context of a kernel thread. It
2216 * is kick-off by the driver's detect code and starts up
2217 * up one per adapter. It immediately goes to sleep and waits for
2218 * some fibre event. When either the interrupt handler or
2219 * the timer routine detects a event it will one of the task
2220 * bits then wake us up.
2221 **************************************************************************/
2222 static int
2223 qla2x00_do_dpc(void *data)
2224 {
2225 int rval;
2226 scsi_qla_host_t *ha;
2227 fc_port_t *fcport;
2228 uint8_t status;
2229 uint16_t next_loopid;
2230 struct scsi_qla_host *vha;
2231 int i;
2232
2233
2234 ha = (scsi_qla_host_t *)data;
2235
2236 set_user_nice(current, -20);
2237
2238 while (!kthread_should_stop()) {
2239 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
2240
2241 set_current_state(TASK_INTERRUPTIBLE);
2242 schedule();
2243 __set_current_state(TASK_RUNNING);
2244
2245 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
2246
2247 /* Initialization not yet finished. Don't do anything yet. */
2248 if (!ha->flags.init_done)
2249 continue;
2250
2251 DEBUG3(printk("scsi(%ld): DPC handler\n", ha->host_no));
2252
2253 ha->dpc_active = 1;
2254
2255 if (ha->flags.mbox_busy) {
2256 ha->dpc_active = 0;
2257 continue;
2258 }
2259
2260 if (test_and_clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) {
2261
2262 DEBUG(printk("scsi(%ld): dpc: sched "
2263 "qla2x00_abort_isp ha = %p\n",
2264 ha->host_no, ha));
2265 if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
2266 &ha->dpc_flags))) {
2267
2268 if (qla2x00_abort_isp(ha)) {
2269 /* failed. retry later */
2270 set_bit(ISP_ABORT_NEEDED,
2271 &ha->dpc_flags);
2272 }
2273 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2274 }
2275
2276 for_each_mapped_vp_idx(ha, i) {
2277 list_for_each_entry(vha, &ha->vp_list,
2278 vp_list) {
2279 if (i == vha->vp_idx) {
2280 set_bit(ISP_ABORT_NEEDED,
2281 &vha->dpc_flags);
2282 break;
2283 }
2284 }
2285 }
2286
2287 DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
2288 ha->host_no));
2289 }
2290
2291 if (test_and_clear_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags))
2292 qla2x00_update_fcports(ha);
2293
2294 if (test_and_clear_bit(LOOP_RESET_NEEDED, &ha->dpc_flags)) {
2295 DEBUG(printk("scsi(%ld): dpc: sched loop_reset()\n",
2296 ha->host_no));
2297 qla2x00_loop_reset(ha);
2298 }
2299
2300 if (test_and_clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) &&
2301 (!(test_and_set_bit(RESET_ACTIVE, &ha->dpc_flags)))) {
2302
2303 DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
2304 ha->host_no));
2305
2306 qla2x00_rst_aen(ha);
2307 clear_bit(RESET_ACTIVE, &ha->dpc_flags);
2308 }
2309
2310 /* Retry each device up to login retry count */
2311 if ((test_and_clear_bit(RELOGIN_NEEDED, &ha->dpc_flags)) &&
2312 !test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) &&
2313 atomic_read(&ha->loop_state) != LOOP_DOWN) {
2314
2315 DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
2316 ha->host_no));
2317
2318 next_loopid = 0;
2319 list_for_each_entry(fcport, &ha->fcports, list) {
2320 /*
2321 * If the port is not ONLINE then try to login
2322 * to it if we haven't run out of retries.
2323 */
2324 if (atomic_read(&fcport->state) != FCS_ONLINE &&
2325 fcport->login_retry) {
2326
2327 if (fcport->flags & FCF_FABRIC_DEVICE) {
2328 if (fcport->flags &
2329 FCF_TAPE_PRESENT)
2330 ha->isp_ops->fabric_logout(
2331 ha, fcport->loop_id,
2332 fcport->d_id.b.domain,
2333 fcport->d_id.b.area,
2334 fcport->d_id.b.al_pa);
2335 status = qla2x00_fabric_login(
2336 ha, fcport, &next_loopid);
2337 } else
2338 status =
2339 qla2x00_local_device_login(
2340 ha, fcport);
2341
2342 fcport->login_retry--;
2343 if (status == QLA_SUCCESS) {
2344 fcport->old_loop_id = fcport->loop_id;
2345
2346 DEBUG(printk("scsi(%ld): port login OK: logged in ID 0x%x\n",
2347 ha->host_no, fcport->loop_id));
2348
2349 qla2x00_update_fcport(ha,
2350 fcport);
2351 } else if (status == 1) {
2352 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
2353 /* retry the login again */
2354 DEBUG(printk("scsi(%ld): Retrying %d login again loop_id 0x%x\n",
2355 ha->host_no,
2356 fcport->login_retry, fcport->loop_id));
2357 } else {
2358 fcport->login_retry = 0;
2359 }
2360 if (fcport->login_retry == 0 && status != QLA_SUCCESS)
2361 fcport->loop_id = FC_NO_LOOP_ID;
2362 }
2363 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2364 break;
2365 }
2366 DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
2367 ha->host_no));
2368 }
2369
2370 if ((test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags)) &&
2371 atomic_read(&ha->loop_state) != LOOP_DOWN) {
2372
2373 clear_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags);
2374 DEBUG(printk("scsi(%ld): qla2x00_login_retry()\n",
2375 ha->host_no));
2376
2377 set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
2378
2379 DEBUG(printk("scsi(%ld): qla2x00_login_retry - end\n",
2380 ha->host_no));
2381 }
2382
2383 if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
2384
2385 DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
2386 ha->host_no));
2387
2388 if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
2389 &ha->dpc_flags))) {
2390
2391 rval = qla2x00_loop_resync(ha);
2392
2393 clear_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags);
2394 }
2395
2396 DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
2397 ha->host_no));
2398 }
2399
2400 if (test_and_clear_bit(FCPORT_RESCAN_NEEDED, &ha->dpc_flags)) {
2401
2402 DEBUG(printk("scsi(%ld): Rescan flagged fcports...\n",
2403 ha->host_no));
2404
2405 qla2x00_rescan_fcports(ha);
2406
2407 DEBUG(printk("scsi(%ld): Rescan flagged fcports..."
2408 "end.\n",
2409 ha->host_no));
2410 }
2411
2412 if (!ha->interrupts_on)
2413 ha->isp_ops->enable_intrs(ha);
2414
2415 if (test_and_clear_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags))
2416 ha->isp_ops->beacon_blink(ha);
2417
2418 qla2x00_do_dpc_all_vps(ha);
2419
2420 ha->dpc_active = 0;
2421 } /* End of while(1) */
2422
2423 DEBUG(printk("scsi(%ld): DPC handler exiting\n", ha->host_no));
2424
2425 /*
2426 * Make sure that nobody tries to wake us up again.
2427 */
2428 ha->dpc_active = 0;
2429
2430 return 0;
2431 }
2432
2433 void
2434 qla2xxx_wake_dpc(scsi_qla_host_t *ha)
2435 {
2436 if (ha->dpc_thread)
2437 wake_up_process(ha->dpc_thread);
2438 }
2439
2440 /*
2441 * qla2x00_rst_aen
2442 * Processes asynchronous reset.
2443 *
2444 * Input:
2445 * ha = adapter block pointer.
2446 */
2447 static void
2448 qla2x00_rst_aen(scsi_qla_host_t *ha)
2449 {
2450 if (ha->flags.online && !ha->flags.reset_active &&
2451 !atomic_read(&ha->loop_down_timer) &&
2452 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) {
2453 do {
2454 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
2455
2456 /*
2457 * Issue marker command only when we are going to start
2458 * the I/O.
2459 */
2460 ha->marker_needed = 1;
2461 } while (!atomic_read(&ha->loop_down_timer) &&
2462 (test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags)));
2463 }
2464 }
2465
2466 static void
2467 qla2x00_sp_free_dma(scsi_qla_host_t *ha, srb_t *sp)
2468 {
2469 struct scsi_cmnd *cmd = sp->cmd;
2470
2471 if (sp->flags & SRB_DMA_VALID) {
2472 scsi_dma_unmap(cmd);
2473 sp->flags &= ~SRB_DMA_VALID;
2474 }
2475 CMD_SP(cmd) = NULL;
2476 }
2477
2478 void
2479 qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *sp)
2480 {
2481 struct scsi_cmnd *cmd = sp->cmd;
2482
2483 qla2x00_sp_free_dma(ha, sp);
2484
2485 mempool_free(sp, ha->srb_mempool);
2486
2487 cmd->scsi_done(cmd);
2488 }
2489
2490 /**************************************************************************
2491 * qla2x00_timer
2492 *
2493 * Description:
2494 * One second timer
2495 *
2496 * Context: Interrupt
2497 ***************************************************************************/
2498 void
2499 qla2x00_timer(scsi_qla_host_t *ha)
2500 {
2501 unsigned long cpu_flags = 0;
2502 fc_port_t *fcport;
2503 int start_dpc = 0;
2504 int index;
2505 srb_t *sp;
2506 int t;
2507 scsi_qla_host_t *pha = to_qla_parent(ha);
2508
2509 /*
2510 * Ports - Port down timer.
2511 *
2512 * Whenever, a port is in the LOST state we start decrementing its port
2513 * down timer every second until it reaches zero. Once it reaches zero
2514 * the port it marked DEAD.
2515 */
2516 t = 0;
2517 list_for_each_entry(fcport, &ha->fcports, list) {
2518 if (fcport->port_type != FCT_TARGET)
2519 continue;
2520
2521 if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
2522
2523 if (atomic_read(&fcport->port_down_timer) == 0)
2524 continue;
2525
2526 if (atomic_dec_and_test(&fcport->port_down_timer) != 0)
2527 atomic_set(&fcport->state, FCS_DEVICE_DEAD);
2528
2529 DEBUG(printk("scsi(%ld): fcport-%d - port retry count: "
2530 "%d remaining\n",
2531 ha->host_no,
2532 t, atomic_read(&fcport->port_down_timer)));
2533 }
2534 t++;
2535 } /* End of for fcport */
2536
2537
2538 /* Loop down handler. */
2539 if (atomic_read(&ha->loop_down_timer) > 0 &&
2540 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags)) && ha->flags.online) {
2541
2542 if (atomic_read(&ha->loop_down_timer) ==
2543 ha->loop_down_abort_time) {
2544
2545 DEBUG(printk("scsi(%ld): Loop Down - aborting the "
2546 "queues before time expire\n",
2547 ha->host_no));
2548
2549 if (!IS_QLA2100(ha) && ha->link_down_timeout)
2550 atomic_set(&ha->loop_state, LOOP_DEAD);
2551
2552 /* Schedule an ISP abort to return any tape commands. */
2553 /* NPIV - scan physical port only */
2554 if (!ha->parent) {
2555 spin_lock_irqsave(&ha->hardware_lock,
2556 cpu_flags);
2557 for (index = 1;
2558 index < MAX_OUTSTANDING_COMMANDS;
2559 index++) {
2560 fc_port_t *sfcp;
2561
2562 sp = ha->outstanding_cmds[index];
2563 if (!sp)
2564 continue;
2565 sfcp = sp->fcport;
2566 if (!(sfcp->flags & FCF_TAPE_PRESENT))
2567 continue;
2568
2569 set_bit(ISP_ABORT_NEEDED,
2570 &ha->dpc_flags);
2571 break;
2572 }
2573 spin_unlock_irqrestore(&ha->hardware_lock,
2574 cpu_flags);
2575 }
2576 set_bit(ABORT_QUEUES_NEEDED, &ha->dpc_flags);
2577 start_dpc++;
2578 }
2579
2580 /* if the loop has been down for 4 minutes, reinit adapter */
2581 if (atomic_dec_and_test(&ha->loop_down_timer) != 0) {
2582 DEBUG(printk("scsi(%ld): Loop down exceed 4 mins - "
2583 "restarting queues.\n",
2584 ha->host_no));
2585
2586 set_bit(RESTART_QUEUES_NEEDED, &ha->dpc_flags);
2587 start_dpc++;
2588
2589 if (!(ha->device_flags & DFLG_NO_CABLE)) {
2590 DEBUG(printk("scsi(%ld): Loop down - "
2591 "aborting ISP.\n",
2592 ha->host_no));
2593 qla_printk(KERN_WARNING, ha,
2594 "Loop down - aborting ISP.\n");
2595
2596 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2597 }
2598 }
2599 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
2600 ha->host_no,
2601 atomic_read(&ha->loop_down_timer)));
2602 }
2603
2604 /* Check if beacon LED needs to be blinked */
2605 if (ha->beacon_blink_led == 1) {
2606 set_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags);
2607 start_dpc++;
2608 }
2609
2610 /* Schedule the DPC routine if needed */
2611 if ((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags) ||
2612 test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) ||
2613 test_bit(LOOP_RESET_NEEDED, &ha->dpc_flags) ||
2614 test_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags) ||
2615 start_dpc ||
2616 test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags) ||
2617 test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) ||
2618 test_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags) ||
2619 test_bit(VP_DPC_NEEDED, &ha->dpc_flags) ||
2620 test_bit(RELOGIN_NEEDED, &ha->dpc_flags)))
2621 qla2xxx_wake_dpc(pha);
2622
2623 qla2x00_restart_timer(ha, WATCH_INTERVAL);
2624 }
2625
2626 /* Firmware interface routines. */
2627
2628 #define FW_BLOBS 6
2629 #define FW_ISP21XX 0
2630 #define FW_ISP22XX 1
2631 #define FW_ISP2300 2
2632 #define FW_ISP2322 3
2633 #define FW_ISP24XX 4
2634 #define FW_ISP25XX 5
2635
2636 #define FW_FILE_ISP21XX "ql2100_fw.bin"
2637 #define FW_FILE_ISP22XX "ql2200_fw.bin"
2638 #define FW_FILE_ISP2300 "ql2300_fw.bin"
2639 #define FW_FILE_ISP2322 "ql2322_fw.bin"
2640 #define FW_FILE_ISP24XX "ql2400_fw.bin"
2641 #define FW_FILE_ISP25XX "ql2500_fw.bin"
2642
2643 static DECLARE_MUTEX(qla_fw_lock);
2644
2645 static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
2646 { .name = FW_FILE_ISP21XX, .segs = { 0x1000, 0 }, },
2647 { .name = FW_FILE_ISP22XX, .segs = { 0x1000, 0 }, },
2648 { .name = FW_FILE_ISP2300, .segs = { 0x800, 0 }, },
2649 { .name = FW_FILE_ISP2322, .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
2650 { .name = FW_FILE_ISP24XX, },
2651 { .name = FW_FILE_ISP25XX, },
2652 };
2653
2654 struct fw_blob *
2655 qla2x00_request_firmware(scsi_qla_host_t *ha)
2656 {
2657 struct fw_blob *blob;
2658
2659 blob = NULL;
2660 if (IS_QLA2100(ha)) {
2661 blob = &qla_fw_blobs[FW_ISP21XX];
2662 } else if (IS_QLA2200(ha)) {
2663 blob = &qla_fw_blobs[FW_ISP22XX];
2664 } else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
2665 blob = &qla_fw_blobs[FW_ISP2300];
2666 } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
2667 blob = &qla_fw_blobs[FW_ISP2322];
2668 } else if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
2669 blob = &qla_fw_blobs[FW_ISP24XX];
2670 } else if (IS_QLA25XX(ha)) {
2671 blob = &qla_fw_blobs[FW_ISP25XX];
2672 }
2673
2674 down(&qla_fw_lock);
2675 if (blob->fw)
2676 goto out;
2677
2678 if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
2679 DEBUG2(printk("scsi(%ld): Failed to load firmware image "
2680 "(%s).\n", ha->host_no, blob->name));
2681 blob->fw = NULL;
2682 blob = NULL;
2683 goto out;
2684 }
2685
2686 out:
2687 up(&qla_fw_lock);
2688 return blob;
2689 }
2690
2691 static void
2692 qla2x00_release_firmware(void)
2693 {
2694 int idx;
2695
2696 down(&qla_fw_lock);
2697 for (idx = 0; idx < FW_BLOBS; idx++)
2698 if (qla_fw_blobs[idx].fw)
2699 release_firmware(qla_fw_blobs[idx].fw);
2700 up(&qla_fw_lock);
2701 }
2702
2703 static pci_ers_result_t
2704 qla2xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
2705 {
2706 switch (state) {
2707 case pci_channel_io_normal:
2708 return PCI_ERS_RESULT_CAN_RECOVER;
2709 case pci_channel_io_frozen:
2710 pci_disable_device(pdev);
2711 return PCI_ERS_RESULT_NEED_RESET;
2712 case pci_channel_io_perm_failure:
2713 qla2x00_remove_one(pdev);
2714 return PCI_ERS_RESULT_DISCONNECT;
2715 }
2716 return PCI_ERS_RESULT_NEED_RESET;
2717 }
2718
2719 static pci_ers_result_t
2720 qla2xxx_pci_mmio_enabled(struct pci_dev *pdev)
2721 {
2722 int risc_paused = 0;
2723 uint32_t stat;
2724 unsigned long flags;
2725 scsi_qla_host_t *ha = pci_get_drvdata(pdev);
2726 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
2727 struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
2728
2729 spin_lock_irqsave(&ha->hardware_lock, flags);
2730 if (IS_QLA2100(ha) || IS_QLA2200(ha)){
2731 stat = RD_REG_DWORD(&reg->hccr);
2732 if (stat & HCCR_RISC_PAUSE)
2733 risc_paused = 1;
2734 } else if (IS_QLA23XX(ha)) {
2735 stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
2736 if (stat & HSR_RISC_PAUSED)
2737 risc_paused = 1;
2738 } else if (IS_FWI2_CAPABLE(ha)) {
2739 stat = RD_REG_DWORD(&reg24->host_status);
2740 if (stat & HSRX_RISC_PAUSED)
2741 risc_paused = 1;
2742 }
2743 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2744
2745 if (risc_paused) {
2746 qla_printk(KERN_INFO, ha, "RISC paused -- mmio_enabled, "
2747 "Dumping firmware!\n");
2748 ha->isp_ops->fw_dump(ha, 0);
2749
2750 return PCI_ERS_RESULT_NEED_RESET;
2751 } else
2752 return PCI_ERS_RESULT_RECOVERED;
2753 }
2754
2755 static pci_ers_result_t
2756 qla2xxx_pci_slot_reset(struct pci_dev *pdev)
2757 {
2758 pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
2759 scsi_qla_host_t *ha = pci_get_drvdata(pdev);
2760 int rc;
2761
2762 if (ha->mem_only)
2763 rc = pci_enable_device_mem(pdev);
2764 else
2765 rc = pci_enable_device(pdev);
2766
2767 if (rc) {
2768 qla_printk(KERN_WARNING, ha,
2769 "Can't re-enable PCI device after reset.\n");
2770
2771 return ret;
2772 }
2773 pci_set_master(pdev);
2774
2775 if (ha->isp_ops->pci_config(ha))
2776 return ret;
2777
2778 set_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2779 if (qla2x00_abort_isp(ha)== QLA_SUCCESS)
2780 ret = PCI_ERS_RESULT_RECOVERED;
2781 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2782
2783 return ret;
2784 }
2785
2786 static void
2787 qla2xxx_pci_resume(struct pci_dev *pdev)
2788 {
2789 scsi_qla_host_t *ha = pci_get_drvdata(pdev);
2790 int ret;
2791
2792 ret = qla2x00_wait_for_hba_online(ha);
2793 if (ret != QLA_SUCCESS) {
2794 qla_printk(KERN_ERR, ha,
2795 "the device failed to resume I/O "
2796 "from slot/link_reset");
2797 }
2798 pci_cleanup_aer_uncorrect_error_status(pdev);
2799 }
2800
2801 static struct pci_error_handlers qla2xxx_err_handler = {
2802 .error_detected = qla2xxx_pci_error_detected,
2803 .mmio_enabled = qla2xxx_pci_mmio_enabled,
2804 .slot_reset = qla2xxx_pci_slot_reset,
2805 .resume = qla2xxx_pci_resume,
2806 };
2807
2808 static struct pci_device_id qla2xxx_pci_tbl[] = {
2809 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
2810 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
2811 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
2812 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
2813 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
2814 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
2815 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
2816 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
2817 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
2818 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
2819 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
2820 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2532) },
2821 { 0 },
2822 };
2823 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
2824
2825 static struct pci_driver qla2xxx_pci_driver = {
2826 .name = QLA2XXX_DRIVER_NAME,
2827 .driver = {
2828 .owner = THIS_MODULE,
2829 },
2830 .id_table = qla2xxx_pci_tbl,
2831 .probe = qla2x00_probe_one,
2832 .remove = qla2x00_remove_one,
2833 .err_handler = &qla2xxx_err_handler,
2834 };
2835
2836 /**
2837 * qla2x00_module_init - Module initialization.
2838 **/
2839 static int __init
2840 qla2x00_module_init(void)
2841 {
2842 int ret = 0;
2843
2844 /* Allocate cache for SRBs. */
2845 srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
2846 SLAB_HWCACHE_ALIGN, NULL);
2847 if (srb_cachep == NULL) {
2848 printk(KERN_ERR
2849 "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
2850 return -ENOMEM;
2851 }
2852
2853 /* Derive version string. */
2854 strcpy(qla2x00_version_str, QLA2XXX_VERSION);
2855 if (ql2xextended_error_logging)
2856 strcat(qla2x00_version_str, "-debug");
2857
2858 qla2xxx_transport_template =
2859 fc_attach_transport(&qla2xxx_transport_functions);
2860 if (!qla2xxx_transport_template) {
2861 kmem_cache_destroy(srb_cachep);
2862 return -ENODEV;
2863 }
2864 qla2xxx_transport_vport_template =
2865 fc_attach_transport(&qla2xxx_transport_vport_functions);
2866 if (!qla2xxx_transport_vport_template) {
2867 kmem_cache_destroy(srb_cachep);
2868 fc_release_transport(qla2xxx_transport_template);
2869 return -ENODEV;
2870 }
2871
2872 printk(KERN_INFO "QLogic Fibre Channel HBA Driver\n");
2873 ret = pci_register_driver(&qla2xxx_pci_driver);
2874 if (ret) {
2875 kmem_cache_destroy(srb_cachep);
2876 fc_release_transport(qla2xxx_transport_template);
2877 fc_release_transport(qla2xxx_transport_vport_template);
2878 }
2879 return ret;
2880 }
2881
2882 /**
2883 * qla2x00_module_exit - Module cleanup.
2884 **/
2885 static void __exit
2886 qla2x00_module_exit(void)
2887 {
2888 pci_unregister_driver(&qla2xxx_pci_driver);
2889 qla2x00_release_firmware();
2890 kmem_cache_destroy(srb_cachep);
2891 fc_release_transport(qla2xxx_transport_template);
2892 fc_release_transport(qla2xxx_transport_vport_template);
2893 }
2894
2895 module_init(qla2x00_module_init);
2896 module_exit(qla2x00_module_exit);
2897
2898 MODULE_AUTHOR("QLogic Corporation");
2899 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
2900 MODULE_LICENSE("GPL");
2901 MODULE_VERSION(QLA2XXX_VERSION);
2902 MODULE_FIRMWARE(FW_FILE_ISP21XX);
2903 MODULE_FIRMWARE(FW_FILE_ISP22XX);
2904 MODULE_FIRMWARE(FW_FILE_ISP2300);
2905 MODULE_FIRMWARE(FW_FILE_ISP2322);
2906 MODULE_FIRMWARE(FW_FILE_ISP24XX);
2907 MODULE_FIRMWARE(FW_FILE_ISP25XX);
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