projects / deliverable / linux.git / blob
? search:


2aed4721c0d043821a5044483c4081c77adec0f9
[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 goto qc_target_busy;
399
400 if (atomic_read(&fcport->state) != FCS_ONLINE) {
401 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
402 atomic_read(&ha->loop_state) == LOOP_DEAD) {
403 cmd->result = DID_NO_CONNECT << 16;
404 goto qc_fail_command;
405 }
406 goto qc_target_busy;
407 }
408
409 spin_unlock_irq(ha->host->host_lock);
410
411 sp = qla2x00_get_new_sp(ha, fcport, cmd, done);
412 if (!sp)
413 goto qc_host_busy_lock;
414
415 rval = qla2x00_start_scsi(sp);
416 if (rval != QLA_SUCCESS)
417 goto qc_host_busy_free_sp;
418
419 spin_lock_irq(ha->host->host_lock);
420
421 return 0;
422
423 qc_host_busy_free_sp:
424 qla2x00_sp_free_dma(ha, sp);
425 mempool_free(sp, ha->srb_mempool);
426
427 qc_host_busy_lock:
428 spin_lock_irq(ha->host->host_lock);
429 return SCSI_MLQUEUE_HOST_BUSY;
430
431 qc_target_busy:
432 return SCSI_MLQUEUE_TARGET_BUSY;
433
434 qc_fail_command:
435 done(cmd);
436
437 return 0;
438 }
439
440
441 static int
442 qla24xx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
443 {
444 scsi_qla_host_t *ha = shost_priv(cmd->device->host);
445 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
446 struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
447 srb_t *sp;
448 int rval;
449 scsi_qla_host_t *pha = to_qla_parent(ha);
450
451 if (unlikely(pci_channel_offline(pha->pdev))) {
452 cmd->result = DID_REQUEUE << 16;
453 goto qc24_fail_command;
454 }
455
456 rval = fc_remote_port_chkready(rport);
457 if (rval) {
458 cmd->result = rval;
459 goto qc24_fail_command;
460 }
461
462 /* Close window on fcport/rport state-transitioning. */
463 if (fcport->drport)
464 goto qc24_target_busy;
465
466 if (atomic_read(&fcport->state) != FCS_ONLINE) {
467 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
468 atomic_read(&pha->loop_state) == LOOP_DEAD) {
469 cmd->result = DID_NO_CONNECT << 16;
470 goto qc24_fail_command;
471 }
472 goto qc24_target_busy;
473 }
474
475 spin_unlock_irq(ha->host->host_lock);
476
477 sp = qla2x00_get_new_sp(pha, fcport, cmd, done);
478 if (!sp)
479 goto qc24_host_busy_lock;
480
481 rval = qla24xx_start_scsi(sp);
482 if (rval != QLA_SUCCESS)
483 goto qc24_host_busy_free_sp;
484
485 spin_lock_irq(ha->host->host_lock);
486
487 return 0;
488
489 qc24_host_busy_free_sp:
490 qla2x00_sp_free_dma(pha, sp);
491 mempool_free(sp, pha->srb_mempool);
492
493 qc24_host_busy_lock:
494 spin_lock_irq(ha->host->host_lock);
495 return SCSI_MLQUEUE_HOST_BUSY;
496
497 qc24_target_busy:
498 return SCSI_MLQUEUE_TARGET_BUSY;
499
500 qc24_fail_command:
501 done(cmd);
502
503 return 0;
504 }
505
506
507 /*
508 * qla2x00_eh_wait_on_command
509 * Waits for the command to be returned by the Firmware for some
510 * max time.
511 *
512 * Input:
513 * ha = actual ha whose done queue will contain the command
514 * returned by firmware.
515 * cmd = Scsi Command to wait on.
516 * flag = Abort/Reset(Bus or Device Reset)
517 *
518 * Return:
519 * Not Found : 0
520 * Found : 1
521 */
522 static int
523 qla2x00_eh_wait_on_command(scsi_qla_host_t *ha, struct scsi_cmnd *cmd)
524 {
525 #define ABORT_POLLING_PERIOD 1000
526 #define ABORT_WAIT_ITER ((10 * 1000) / (ABORT_POLLING_PERIOD))
527 unsigned long wait_iter = ABORT_WAIT_ITER;
528 int ret = QLA_SUCCESS;
529
530 while (CMD_SP(cmd)) {
531 msleep(ABORT_POLLING_PERIOD);
532
533 if (--wait_iter)
534 break;
535 }
536 if (CMD_SP(cmd))
537 ret = QLA_FUNCTION_FAILED;
538
539 return ret;
540 }
541
542 /*
543 * qla2x00_wait_for_hba_online
544 * Wait till the HBA is online after going through
545 * <= MAX_RETRIES_OF_ISP_ABORT or
546 * finally HBA is disabled ie marked offline
547 *
548 * Input:
549 * ha - pointer to host adapter structure
550 *
551 * Note:
552 * Does context switching-Release SPIN_LOCK
553 * (if any) before calling this routine.
554 *
555 * Return:
556 * Success (Adapter is online) : 0
557 * Failed (Adapter is offline/disabled) : 1
558 */
559 int
560 qla2x00_wait_for_hba_online(scsi_qla_host_t *ha)
561 {
562 int return_status;
563 unsigned long wait_online;
564 scsi_qla_host_t *pha = to_qla_parent(ha);
565
566 wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
567 while (((test_bit(ISP_ABORT_NEEDED, &pha->dpc_flags)) ||
568 test_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags) ||
569 test_bit(ISP_ABORT_RETRY, &pha->dpc_flags) ||
570 pha->dpc_active) && time_before(jiffies, wait_online)) {
571
572 msleep(1000);
573 }
574 if (pha->flags.online)
575 return_status = QLA_SUCCESS;
576 else
577 return_status = QLA_FUNCTION_FAILED;
578
579 return (return_status);
580 }
581
582 /*
583 * qla2x00_wait_for_loop_ready
584 * Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
585 * to be in LOOP_READY state.
586 * Input:
587 * ha - pointer to host adapter structure
588 *
589 * Note:
590 * Does context switching-Release SPIN_LOCK
591 * (if any) before calling this routine.
592 *
593 *
594 * Return:
595 * Success (LOOP_READY) : 0
596 * Failed (LOOP_NOT_READY) : 1
597 */
598 static inline int
599 qla2x00_wait_for_loop_ready(scsi_qla_host_t *ha)
600 {
601 int return_status = QLA_SUCCESS;
602 unsigned long loop_timeout ;
603 scsi_qla_host_t *pha = to_qla_parent(ha);
604
605 /* wait for 5 min at the max for loop to be ready */
606 loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ);
607
608 while ((!atomic_read(&pha->loop_down_timer) &&
609 atomic_read(&pha->loop_state) == LOOP_DOWN) ||
610 atomic_read(&pha->loop_state) != LOOP_READY) {
611 if (atomic_read(&pha->loop_state) == LOOP_DEAD) {
612 return_status = QLA_FUNCTION_FAILED;
613 break;
614 }
615 msleep(1000);
616 if (time_after_eq(jiffies, loop_timeout)) {
617 return_status = QLA_FUNCTION_FAILED;
618 break;
619 }
620 }
621 return (return_status);
622 }
623
624 void
625 qla2x00_abort_fcport_cmds(fc_port_t *fcport)
626 {
627 int cnt;
628 unsigned long flags;
629 srb_t *sp;
630 scsi_qla_host_t *ha = fcport->ha;
631 scsi_qla_host_t *pha = to_qla_parent(ha);
632
633 spin_lock_irqsave(&pha->hardware_lock, flags);
634 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
635 sp = pha->outstanding_cmds[cnt];
636 if (!sp)
637 continue;
638 if (sp->fcport != fcport)
639 continue;
640
641 spin_unlock_irqrestore(&pha->hardware_lock, flags);
642 if (ha->isp_ops->abort_command(ha, sp)) {
643 DEBUG2(qla_printk(KERN_WARNING, ha,
644 "Abort failed -- %lx\n", sp->cmd->serial_number));
645 } else {
646 if (qla2x00_eh_wait_on_command(ha, sp->cmd) !=
647 QLA_SUCCESS)
648 DEBUG2(qla_printk(KERN_WARNING, ha,
649 "Abort failed while waiting -- %lx\n",
650 sp->cmd->serial_number));
651
652 }
653 spin_lock_irqsave(&pha->hardware_lock, flags);
654 }
655 spin_unlock_irqrestore(&pha->hardware_lock, flags);
656 }
657
658 static void
659 qla2x00_block_error_handler(struct scsi_cmnd *cmnd)
660 {
661 struct Scsi_Host *shost = cmnd->device->host;
662 struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device));
663 unsigned long flags;
664
665 spin_lock_irqsave(shost->host_lock, flags);
666 while (rport->port_state == FC_PORTSTATE_BLOCKED) {
667 spin_unlock_irqrestore(shost->host_lock, flags);
668 msleep(1000);
669 spin_lock_irqsave(shost->host_lock, flags);
670 }
671 spin_unlock_irqrestore(shost->host_lock, flags);
672 return;
673 }
674
675 /**************************************************************************
676 * qla2xxx_eh_abort
677 *
678 * Description:
679 * The abort function will abort the specified command.
680 *
681 * Input:
682 * cmd = Linux SCSI command packet to be aborted.
683 *
684 * Returns:
685 * Either SUCCESS or FAILED.
686 *
687 * Note:
688 * Only return FAILED if command not returned by firmware.
689 **************************************************************************/
690 static int
691 qla2xxx_eh_abort(struct scsi_cmnd *cmd)
692 {
693 scsi_qla_host_t *ha = shost_priv(cmd->device->host);
694 srb_t *sp;
695 int ret, i;
696 unsigned int id, lun;
697 unsigned long serial;
698 unsigned long flags;
699 int wait = 0;
700 scsi_qla_host_t *pha = to_qla_parent(ha);
701
702 qla2x00_block_error_handler(cmd);
703
704 if (!CMD_SP(cmd))
705 return SUCCESS;
706
707 ret = SUCCESS;
708
709 id = cmd->device->id;
710 lun = cmd->device->lun;
711 serial = cmd->serial_number;
712
713 /* Check active list for command command. */
714 spin_lock_irqsave(&pha->hardware_lock, flags);
715 for (i = 1; i < MAX_OUTSTANDING_COMMANDS; i++) {
716 sp = pha->outstanding_cmds[i];
717
718 if (sp == NULL)
719 continue;
720
721 if (sp->cmd != cmd)
722 continue;
723
724 DEBUG2(printk("%s(%ld): aborting sp %p from RISC. pid=%ld.\n",
725 __func__, ha->host_no, sp, serial));
726
727 spin_unlock_irqrestore(&pha->hardware_lock, flags);
728 if (ha->isp_ops->abort_command(ha, sp)) {
729 DEBUG2(printk("%s(%ld): abort_command "
730 "mbx failed.\n", __func__, ha->host_no));
731 } else {
732 DEBUG3(printk("%s(%ld): abort_command "
733 "mbx success.\n", __func__, ha->host_no));
734 wait = 1;
735 }
736 spin_lock_irqsave(&pha->hardware_lock, flags);
737
738 break;
739 }
740 spin_unlock_irqrestore(&pha->hardware_lock, flags);
741
742 /* Wait for the command to be returned. */
743 if (wait) {
744 if (qla2x00_eh_wait_on_command(ha, cmd) != QLA_SUCCESS) {
745 qla_printk(KERN_ERR, ha,
746 "scsi(%ld:%d:%d): Abort handler timed out -- %lx "
747 "%x.\n", ha->host_no, id, lun, serial, ret);
748 ret = FAILED;
749 }
750 }
751
752 qla_printk(KERN_INFO, ha,
753 "scsi(%ld:%d:%d): Abort command issued -- %d %lx %x.\n",
754 ha->host_no, id, lun, wait, serial, ret);
755
756 return ret;
757 }
758
759 enum nexus_wait_type {
760 WAIT_HOST = 0,
761 WAIT_TARGET,
762 WAIT_LUN,
763 };
764
765 static int
766 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *ha, unsigned int t,
767 unsigned int l, enum nexus_wait_type type)
768 {
769 int cnt, match, status;
770 srb_t *sp;
771 unsigned long flags;
772 scsi_qla_host_t *pha = to_qla_parent(ha);
773
774 status = QLA_SUCCESS;
775 spin_lock_irqsave(&pha->hardware_lock, flags);
776 for (cnt = 1; status == QLA_SUCCESS && cnt < MAX_OUTSTANDING_COMMANDS;
777 cnt++) {
778 sp = pha->outstanding_cmds[cnt];
779 if (!sp)
780 continue;
781
782 if (ha->vp_idx != sp->fcport->ha->vp_idx)
783 continue;
784 match = 0;
785 switch (type) {
786 case WAIT_HOST:
787 match = 1;
788 break;
789 case WAIT_TARGET:
790 match = sp->cmd->device->id == t;
791 break;
792 case WAIT_LUN:
793 match = (sp->cmd->device->id == t &&
794 sp->cmd->device->lun == l);
795 break;
796 }
797 if (!match)
798 continue;
799
800 spin_unlock_irqrestore(&pha->hardware_lock, flags);
801 status = qla2x00_eh_wait_on_command(ha, sp->cmd);
802 spin_lock_irqsave(&pha->hardware_lock, flags);
803 }
804 spin_unlock_irqrestore(&pha->hardware_lock, flags);
805
806 return status;
807 }
808
809 static char *reset_errors[] = {
810 "HBA not online",
811 "HBA not ready",
812 "Task management failed",
813 "Waiting for command completions",
814 };
815
816 static int
817 __qla2xxx_eh_generic_reset(char *name, enum nexus_wait_type type,
818 struct scsi_cmnd *cmd, int (*do_reset)(struct fc_port *, unsigned int))
819 {
820 scsi_qla_host_t *ha = shost_priv(cmd->device->host);
821 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
822 int err;
823
824 qla2x00_block_error_handler(cmd);
825
826 if (!fcport)
827 return FAILED;
828
829 qla_printk(KERN_INFO, ha, "scsi(%ld:%d:%d): %s RESET ISSUED.\n",
830 ha->host_no, cmd->device->id, cmd->device->lun, name);
831
832 err = 0;
833 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
834 goto eh_reset_failed;
835 err = 1;
836 if (qla2x00_wait_for_loop_ready(ha) != QLA_SUCCESS)
837 goto eh_reset_failed;
838 err = 2;
839 if (do_reset(fcport, cmd->device->lun) != QLA_SUCCESS)
840 goto eh_reset_failed;
841 err = 3;
842 if (qla2x00_eh_wait_for_pending_commands(ha, cmd->device->id,
843 cmd->device->lun, type) != QLA_SUCCESS)
844 goto eh_reset_failed;
845
846 qla_printk(KERN_INFO, ha, "scsi(%ld:%d:%d): %s RESET SUCCEEDED.\n",
847 ha->host_no, cmd->device->id, cmd->device->lun, name);
848
849 return SUCCESS;
850
851 eh_reset_failed:
852 qla_printk(KERN_INFO, ha, "scsi(%ld:%d:%d): %s RESET FAILED: %s.\n",
853 ha->host_no, cmd->device->id, cmd->device->lun, name,
854 reset_errors[err]);
855 return FAILED;
856 }
857
858 static int
859 qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
860 {
861 scsi_qla_host_t *ha = shost_priv(cmd->device->host);
862
863 return __qla2xxx_eh_generic_reset("DEVICE", WAIT_LUN, cmd,
864 ha->isp_ops->lun_reset);
865 }
866
867 static int
868 qla2xxx_eh_target_reset(struct scsi_cmnd *cmd)
869 {
870 scsi_qla_host_t *ha = shost_priv(cmd->device->host);
871
872 return __qla2xxx_eh_generic_reset("TARGET", WAIT_TARGET, cmd,
873 ha->isp_ops->target_reset);
874 }
875
876 /**************************************************************************
877 * qla2xxx_eh_bus_reset
878 *
879 * Description:
880 * The bus reset function will reset the bus and abort any executing
881 * commands.
882 *
883 * Input:
884 * cmd = Linux SCSI command packet of the command that cause the
885 * bus reset.
886 *
887 * Returns:
888 * SUCCESS/FAILURE (defined as macro in scsi.h).
889 *
890 **************************************************************************/
891 static int
892 qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
893 {
894 scsi_qla_host_t *ha = shost_priv(cmd->device->host);
895 scsi_qla_host_t *pha = to_qla_parent(ha);
896 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
897 int ret = FAILED;
898 unsigned int id, lun;
899 unsigned long serial;
900
901 qla2x00_block_error_handler(cmd);
902
903 id = cmd->device->id;
904 lun = cmd->device->lun;
905 serial = cmd->serial_number;
906
907 if (!fcport)
908 return ret;
909
910 qla_printk(KERN_INFO, ha,
911 "scsi(%ld:%d:%d): LOOP RESET ISSUED.\n", ha->host_no, id, lun);
912
913 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS) {
914 DEBUG2(printk("%s failed:board disabled\n",__func__));
915 goto eh_bus_reset_done;
916 }
917
918 if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
919 if (qla2x00_loop_reset(ha) == QLA_SUCCESS)
920 ret = SUCCESS;
921 }
922 if (ret == FAILED)
923 goto eh_bus_reset_done;
924
925 /* Flush outstanding commands. */
926 if (qla2x00_eh_wait_for_pending_commands(pha, 0, 0, WAIT_HOST) !=
927 QLA_SUCCESS)
928 ret = FAILED;
929
930 eh_bus_reset_done:
931 qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
932 (ret == FAILED) ? "failed" : "succeded");
933
934 return ret;
935 }
936
937 /**************************************************************************
938 * qla2xxx_eh_host_reset
939 *
940 * Description:
941 * The reset function will reset the Adapter.
942 *
943 * Input:
944 * cmd = Linux SCSI command packet of the command that cause the
945 * adapter reset.
946 *
947 * Returns:
948 * Either SUCCESS or FAILED.
949 *
950 * Note:
951 **************************************************************************/
952 static int
953 qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
954 {
955 scsi_qla_host_t *ha = shost_priv(cmd->device->host);
956 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
957 int ret = FAILED;
958 unsigned int id, lun;
959 unsigned long serial;
960 scsi_qla_host_t *pha = to_qla_parent(ha);
961
962 qla2x00_block_error_handler(cmd);
963
964 id = cmd->device->id;
965 lun = cmd->device->lun;
966 serial = cmd->serial_number;
967
968 if (!fcport)
969 return ret;
970
971 qla_printk(KERN_INFO, ha,
972 "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", ha->host_no, id, lun);
973
974 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
975 goto eh_host_reset_lock;
976
977 /*
978 * Fixme-may be dpc thread is active and processing
979 * loop_resync,so wait a while for it to
980 * be completed and then issue big hammer.Otherwise
981 * it may cause I/O failure as big hammer marks the
982 * devices as lost kicking of the port_down_timer
983 * while dpc is stuck for the mailbox to complete.
984 */
985 qla2x00_wait_for_loop_ready(ha);
986 set_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags);
987 if (qla2x00_abort_isp(pha)) {
988 clear_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags);
989 /* failed. schedule dpc to try */
990 set_bit(ISP_ABORT_NEEDED, &pha->dpc_flags);
991
992 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
993 goto eh_host_reset_lock;
994 }
995 clear_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags);
996
997 /* Waiting for our command in done_queue to be returned to OS.*/
998 if (qla2x00_eh_wait_for_pending_commands(pha, 0, 0, WAIT_HOST) ==
999 QLA_SUCCESS)
1000 ret = SUCCESS;
1001
1002 if (ha->parent)
1003 qla2x00_vp_abort_isp(ha);
1004
1005 eh_host_reset_lock:
1006 qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
1007 (ret == FAILED) ? "failed" : "succeded");
1008
1009 return ret;
1010 }
1011
1012 /*
1013 * qla2x00_loop_reset
1014 * Issue loop reset.
1015 *
1016 * Input:
1017 * ha = adapter block pointer.
1018 *
1019 * Returns:
1020 * 0 = success
1021 */
1022 int
1023 qla2x00_loop_reset(scsi_qla_host_t *ha)
1024 {
1025 int ret;
1026 struct fc_port *fcport;
1027
1028 if (ha->flags.enable_lip_full_login) {
1029 ret = qla2x00_full_login_lip(ha);
1030 if (ret != QLA_SUCCESS) {
1031 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1032 "full_login_lip=%d.\n", __func__, ha->host_no,
1033 ret));
1034 }
1035 atomic_set(&ha->loop_state, LOOP_DOWN);
1036 atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
1037 qla2x00_mark_all_devices_lost(ha, 0);
1038 qla2x00_wait_for_loop_ready(ha);
1039 }
1040
1041 if (ha->flags.enable_lip_reset) {
1042 ret = qla2x00_lip_reset(ha);
1043 if (ret != QLA_SUCCESS) {
1044 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1045 "lip_reset=%d.\n", __func__, ha->host_no, ret));
1046 }
1047 qla2x00_wait_for_loop_ready(ha);
1048 }
1049
1050 if (ha->flags.enable_target_reset) {
1051 list_for_each_entry(fcport, &ha->fcports, list) {
1052 if (fcport->port_type != FCT_TARGET)
1053 continue;
1054
1055 ret = ha->isp_ops->target_reset(fcport, 0);
1056 if (ret != QLA_SUCCESS) {
1057 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1058 "target_reset=%d d_id=%x.\n", __func__,
1059 ha->host_no, ret, fcport->d_id.b24));
1060 }
1061 }
1062 }
1063
1064 /* Issue marker command only when we are going to start the I/O */
1065 ha->marker_needed = 1;
1066
1067 return QLA_SUCCESS;
1068 }
1069
1070 void
1071 qla2x00_abort_all_cmds(scsi_qla_host_t *ha, int res)
1072 {
1073 int cnt;
1074 unsigned long flags;
1075 srb_t *sp;
1076
1077 spin_lock_irqsave(&ha->hardware_lock, flags);
1078 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
1079 sp = ha->outstanding_cmds[cnt];
1080 if (sp) {
1081 ha->outstanding_cmds[cnt] = NULL;
1082 sp->cmd->result = res;
1083 qla2x00_sp_compl(ha, sp);
1084 }
1085 }
1086 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1087 }
1088
1089 static int
1090 qla2xxx_slave_alloc(struct scsi_device *sdev)
1091 {
1092 struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1093
1094 if (!rport || fc_remote_port_chkready(rport))
1095 return -ENXIO;
1096
1097 sdev->hostdata = *(fc_port_t **)rport->dd_data;
1098
1099 return 0;
1100 }
1101
1102 static int
1103 qla2xxx_slave_configure(struct scsi_device *sdev)
1104 {
1105 scsi_qla_host_t *ha = shost_priv(sdev->host);
1106 struct fc_rport *rport = starget_to_rport(sdev->sdev_target);
1107
1108 if (sdev->tagged_supported)
1109 scsi_activate_tcq(sdev, ha->max_q_depth);
1110 else
1111 scsi_deactivate_tcq(sdev, ha->max_q_depth);
1112
1113 rport->dev_loss_tmo = ha->port_down_retry_count;
1114
1115 return 0;
1116 }
1117
1118 static void
1119 qla2xxx_slave_destroy(struct scsi_device *sdev)
1120 {
1121 sdev->hostdata = NULL;
1122 }
1123
1124 static int
1125 qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth)
1126 {
1127 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1128 return sdev->queue_depth;
1129 }
1130
1131 static int
1132 qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1133 {
1134 if (sdev->tagged_supported) {
1135 scsi_set_tag_type(sdev, tag_type);
1136 if (tag_type)
1137 scsi_activate_tcq(sdev, sdev->queue_depth);
1138 else
1139 scsi_deactivate_tcq(sdev, sdev->queue_depth);
1140 } else
1141 tag_type = 0;
1142
1143 return tag_type;
1144 }
1145
1146 /**
1147 * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1148 * @ha: HA context
1149 *
1150 * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1151 * supported addressing method.
1152 */
1153 static void
1154 qla2x00_config_dma_addressing(scsi_qla_host_t *ha)
1155 {
1156 /* Assume a 32bit DMA mask. */
1157 ha->flags.enable_64bit_addressing = 0;
1158
1159 if (!dma_set_mask(&ha->pdev->dev, DMA_64BIT_MASK)) {
1160 /* Any upper-dword bits set? */
1161 if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1162 !pci_set_consistent_dma_mask(ha->pdev, DMA_64BIT_MASK)) {
1163 /* Ok, a 64bit DMA mask is applicable. */
1164 ha->flags.enable_64bit_addressing = 1;
1165 ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64;
1166 ha->isp_ops->build_iocbs = qla2x00_build_scsi_iocbs_64;
1167 return;
1168 }
1169 }
1170
1171 dma_set_mask(&ha->pdev->dev, DMA_32BIT_MASK);
1172 pci_set_consistent_dma_mask(ha->pdev, DMA_32BIT_MASK);
1173 }
1174
1175 static void
1176 qla2x00_enable_intrs(scsi_qla_host_t *ha)
1177 {
1178 unsigned long flags = 0;
1179 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1180
1181 spin_lock_irqsave(&ha->hardware_lock, flags);
1182 ha->interrupts_on = 1;
1183 /* enable risc and host interrupts */
1184 WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1185 RD_REG_WORD(&reg->ictrl);
1186 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1187
1188 }
1189
1190 static void
1191 qla2x00_disable_intrs(scsi_qla_host_t *ha)
1192 {
1193 unsigned long flags = 0;
1194 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1195
1196 spin_lock_irqsave(&ha->hardware_lock, flags);
1197 ha->interrupts_on = 0;
1198 /* disable risc and host interrupts */
1199 WRT_REG_WORD(&reg->ictrl, 0);
1200 RD_REG_WORD(&reg->ictrl);
1201 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1202 }
1203
1204 static void
1205 qla24xx_enable_intrs(scsi_qla_host_t *ha)
1206 {
1207 unsigned long flags = 0;
1208 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1209
1210 spin_lock_irqsave(&ha->hardware_lock, flags);
1211 ha->interrupts_on = 1;
1212 WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1213 RD_REG_DWORD(&reg->ictrl);
1214 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1215 }
1216
1217 static void
1218 qla24xx_disable_intrs(scsi_qla_host_t *ha)
1219 {
1220 unsigned long flags = 0;
1221 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1222
1223 spin_lock_irqsave(&ha->hardware_lock, flags);
1224 ha->interrupts_on = 0;
1225 WRT_REG_DWORD(&reg->ictrl, 0);
1226 RD_REG_DWORD(&reg->ictrl);
1227 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1228 }
1229
1230 static struct isp_operations qla2100_isp_ops = {
1231 .pci_config = qla2100_pci_config,
1232 .reset_chip = qla2x00_reset_chip,
1233 .chip_diag = qla2x00_chip_diag,
1234 .config_rings = qla2x00_config_rings,
1235 .reset_adapter = qla2x00_reset_adapter,
1236 .nvram_config = qla2x00_nvram_config,
1237 .update_fw_options = qla2x00_update_fw_options,
1238 .load_risc = qla2x00_load_risc,
1239 .pci_info_str = qla2x00_pci_info_str,
1240 .fw_version_str = qla2x00_fw_version_str,
1241 .intr_handler = qla2100_intr_handler,
1242 .enable_intrs = qla2x00_enable_intrs,
1243 .disable_intrs = qla2x00_disable_intrs,
1244 .abort_command = qla2x00_abort_command,
1245 .target_reset = qla2x00_abort_target,
1246 .lun_reset = qla2x00_lun_reset,
1247 .fabric_login = qla2x00_login_fabric,
1248 .fabric_logout = qla2x00_fabric_logout,
1249 .calc_req_entries = qla2x00_calc_iocbs_32,
1250 .build_iocbs = qla2x00_build_scsi_iocbs_32,
1251 .prep_ms_iocb = qla2x00_prep_ms_iocb,
1252 .prep_ms_fdmi_iocb = qla2x00_prep_ms_fdmi_iocb,
1253 .read_nvram = qla2x00_read_nvram_data,
1254 .write_nvram = qla2x00_write_nvram_data,
1255 .fw_dump = qla2100_fw_dump,
1256 .beacon_on = NULL,
1257 .beacon_off = NULL,
1258 .beacon_blink = NULL,
1259 .read_optrom = qla2x00_read_optrom_data,
1260 .write_optrom = qla2x00_write_optrom_data,
1261 .get_flash_version = qla2x00_get_flash_version,
1262 };
1263
1264 static struct isp_operations qla2300_isp_ops = {
1265 .pci_config = qla2300_pci_config,
1266 .reset_chip = qla2x00_reset_chip,
1267 .chip_diag = qla2x00_chip_diag,
1268 .config_rings = qla2x00_config_rings,
1269 .reset_adapter = qla2x00_reset_adapter,
1270 .nvram_config = qla2x00_nvram_config,
1271 .update_fw_options = qla2x00_update_fw_options,
1272 .load_risc = qla2x00_load_risc,
1273 .pci_info_str = qla2x00_pci_info_str,
1274 .fw_version_str = qla2x00_fw_version_str,
1275 .intr_handler = qla2300_intr_handler,
1276 .enable_intrs = qla2x00_enable_intrs,
1277 .disable_intrs = qla2x00_disable_intrs,
1278 .abort_command = qla2x00_abort_command,
1279 .target_reset = qla2x00_abort_target,
1280 .lun_reset = qla2x00_lun_reset,
1281 .fabric_login = qla2x00_login_fabric,
1282 .fabric_logout = qla2x00_fabric_logout,
1283 .calc_req_entries = qla2x00_calc_iocbs_32,
1284 .build_iocbs = qla2x00_build_scsi_iocbs_32,
1285 .prep_ms_iocb = qla2x00_prep_ms_iocb,
1286 .prep_ms_fdmi_iocb = qla2x00_prep_ms_fdmi_iocb,
1287 .read_nvram = qla2x00_read_nvram_data,
1288 .write_nvram = qla2x00_write_nvram_data,
1289 .fw_dump = qla2300_fw_dump,
1290 .beacon_on = qla2x00_beacon_on,
1291 .beacon_off = qla2x00_beacon_off,
1292 .beacon_blink = qla2x00_beacon_blink,
1293 .read_optrom = qla2x00_read_optrom_data,
1294 .write_optrom = qla2x00_write_optrom_data,
1295 .get_flash_version = qla2x00_get_flash_version,
1296 };
1297
1298 static struct isp_operations qla24xx_isp_ops = {
1299 .pci_config = qla24xx_pci_config,
1300 .reset_chip = qla24xx_reset_chip,
1301 .chip_diag = qla24xx_chip_diag,
1302 .config_rings = qla24xx_config_rings,
1303 .reset_adapter = qla24xx_reset_adapter,
1304 .nvram_config = qla24xx_nvram_config,
1305 .update_fw_options = qla24xx_update_fw_options,
1306 .load_risc = qla24xx_load_risc,
1307 .pci_info_str = qla24xx_pci_info_str,
1308 .fw_version_str = qla24xx_fw_version_str,
1309 .intr_handler = qla24xx_intr_handler,
1310 .enable_intrs = qla24xx_enable_intrs,
1311 .disable_intrs = qla24xx_disable_intrs,
1312 .abort_command = qla24xx_abort_command,
1313 .target_reset = qla24xx_abort_target,
1314 .lun_reset = qla24xx_lun_reset,
1315 .fabric_login = qla24xx_login_fabric,
1316 .fabric_logout = qla24xx_fabric_logout,
1317 .calc_req_entries = NULL,
1318 .build_iocbs = NULL,
1319 .prep_ms_iocb = qla24xx_prep_ms_iocb,
1320 .prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb,
1321 .read_nvram = qla24xx_read_nvram_data,
1322 .write_nvram = qla24xx_write_nvram_data,
1323 .fw_dump = qla24xx_fw_dump,
1324 .beacon_on = qla24xx_beacon_on,
1325 .beacon_off = qla24xx_beacon_off,
1326 .beacon_blink = qla24xx_beacon_blink,
1327 .read_optrom = qla24xx_read_optrom_data,
1328 .write_optrom = qla24xx_write_optrom_data,
1329 .get_flash_version = qla24xx_get_flash_version,
1330 };
1331
1332 static struct isp_operations qla25xx_isp_ops = {
1333 .pci_config = qla25xx_pci_config,
1334 .reset_chip = qla24xx_reset_chip,
1335 .chip_diag = qla24xx_chip_diag,
1336 .config_rings = qla24xx_config_rings,
1337 .reset_adapter = qla24xx_reset_adapter,
1338 .nvram_config = qla24xx_nvram_config,
1339 .update_fw_options = qla24xx_update_fw_options,
1340 .load_risc = qla24xx_load_risc,
1341 .pci_info_str = qla24xx_pci_info_str,
1342 .fw_version_str = qla24xx_fw_version_str,
1343 .intr_handler = qla24xx_intr_handler,
1344 .enable_intrs = qla24xx_enable_intrs,
1345 .disable_intrs = qla24xx_disable_intrs,
1346 .abort_command = qla24xx_abort_command,
1347 .target_reset = qla24xx_abort_target,
1348 .lun_reset = qla24xx_lun_reset,
1349 .fabric_login = qla24xx_login_fabric,
1350 .fabric_logout = qla24xx_fabric_logout,
1351 .calc_req_entries = NULL,
1352 .build_iocbs = NULL,
1353 .prep_ms_iocb = qla24xx_prep_ms_iocb,
1354 .prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb,
1355 .read_nvram = qla25xx_read_nvram_data,
1356 .write_nvram = qla25xx_write_nvram_data,
1357 .fw_dump = qla25xx_fw_dump,
1358 .beacon_on = qla24xx_beacon_on,
1359 .beacon_off = qla24xx_beacon_off,
1360 .beacon_blink = qla24xx_beacon_blink,
1361 .read_optrom = qla25xx_read_optrom_data,
1362 .write_optrom = qla24xx_write_optrom_data,
1363 .get_flash_version = qla24xx_get_flash_version,
1364 };
1365
1366 static inline void
1367 qla2x00_set_isp_flags(scsi_qla_host_t *ha)
1368 {
1369 ha->device_type = DT_EXTENDED_IDS;
1370 switch (ha->pdev->device) {
1371 case PCI_DEVICE_ID_QLOGIC_ISP2100:
1372 ha->device_type |= DT_ISP2100;
1373 ha->device_type &= ~DT_EXTENDED_IDS;
1374 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1375 break;
1376 case PCI_DEVICE_ID_QLOGIC_ISP2200:
1377 ha->device_type |= DT_ISP2200;
1378 ha->device_type &= ~DT_EXTENDED_IDS;
1379 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1380 break;
1381 case PCI_DEVICE_ID_QLOGIC_ISP2300:
1382 ha->device_type |= DT_ISP2300;
1383 ha->device_type |= DT_ZIO_SUPPORTED;
1384 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1385 break;
1386 case PCI_DEVICE_ID_QLOGIC_ISP2312:
1387 ha->device_type |= DT_ISP2312;
1388 ha->device_type |= DT_ZIO_SUPPORTED;
1389 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1390 break;
1391 case PCI_DEVICE_ID_QLOGIC_ISP2322:
1392 ha->device_type |= DT_ISP2322;
1393 ha->device_type |= DT_ZIO_SUPPORTED;
1394 if (ha->pdev->subsystem_vendor == 0x1028 &&
1395 ha->pdev->subsystem_device == 0x0170)
1396 ha->device_type |= DT_OEM_001;
1397 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1398 break;
1399 case PCI_DEVICE_ID_QLOGIC_ISP6312:
1400 ha->device_type |= DT_ISP6312;
1401 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1402 break;
1403 case PCI_DEVICE_ID_QLOGIC_ISP6322:
1404 ha->device_type |= DT_ISP6322;
1405 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1406 break;
1407 case PCI_DEVICE_ID_QLOGIC_ISP2422:
1408 ha->device_type |= DT_ISP2422;
1409 ha->device_type |= DT_ZIO_SUPPORTED;
1410 ha->device_type |= DT_FWI2;
1411 ha->device_type |= DT_IIDMA;
1412 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1413 break;
1414 case PCI_DEVICE_ID_QLOGIC_ISP2432:
1415 ha->device_type |= DT_ISP2432;
1416 ha->device_type |= DT_ZIO_SUPPORTED;
1417 ha->device_type |= DT_FWI2;
1418 ha->device_type |= DT_IIDMA;
1419 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1420 break;
1421 case PCI_DEVICE_ID_QLOGIC_ISP8432:
1422 ha->device_type |= DT_ISP8432;
1423 ha->device_type |= DT_ZIO_SUPPORTED;
1424 ha->device_type |= DT_FWI2;
1425 ha->device_type |= DT_IIDMA;
1426 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1427 break;
1428 case PCI_DEVICE_ID_QLOGIC_ISP5422:
1429 ha->device_type |= DT_ISP5422;
1430 ha->device_type |= DT_FWI2;
1431 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1432 break;
1433 case PCI_DEVICE_ID_QLOGIC_ISP5432:
1434 ha->device_type |= DT_ISP5432;
1435 ha->device_type |= DT_FWI2;
1436 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1437 break;
1438 case PCI_DEVICE_ID_QLOGIC_ISP2532:
1439 ha->device_type |= DT_ISP2532;
1440 ha->device_type |= DT_ZIO_SUPPORTED;
1441 ha->device_type |= DT_FWI2;
1442 ha->device_type |= DT_IIDMA;
1443 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1444 break;
1445 }
1446 }
1447
1448 static int
1449 qla2x00_iospace_config(scsi_qla_host_t *ha)
1450 {
1451 resource_size_t pio;
1452
1453 if (pci_request_selected_regions(ha->pdev, ha->bars,
1454 QLA2XXX_DRIVER_NAME)) {
1455 qla_printk(KERN_WARNING, ha,
1456 "Failed to reserve PIO/MMIO regions (%s)\n",
1457 pci_name(ha->pdev));
1458
1459 goto iospace_error_exit;
1460 }
1461 if (!(ha->bars & 1))
1462 goto skip_pio;
1463
1464 /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1465 pio = pci_resource_start(ha->pdev, 0);
1466 if (pci_resource_flags(ha->pdev, 0) & IORESOURCE_IO) {
1467 if (pci_resource_len(ha->pdev, 0) < MIN_IOBASE_LEN) {
1468 qla_printk(KERN_WARNING, ha,
1469 "Invalid PCI I/O region size (%s)...\n",
1470 pci_name(ha->pdev));
1471 pio = 0;
1472 }
1473 } else {
1474 qla_printk(KERN_WARNING, ha,
1475 "region #0 not a PIO resource (%s)...\n",
1476 pci_name(ha->pdev));
1477 pio = 0;
1478 }
1479 ha->pio_address = pio;
1480
1481 skip_pio:
1482 /* Use MMIO operations for all accesses. */
1483 if (!(pci_resource_flags(ha->pdev, 1) & IORESOURCE_MEM)) {
1484 qla_printk(KERN_ERR, ha,
1485 "region #1 not an MMIO resource (%s), aborting\n",
1486 pci_name(ha->pdev));
1487 goto iospace_error_exit;
1488 }
1489 if (pci_resource_len(ha->pdev, 1) < MIN_IOBASE_LEN) {
1490 qla_printk(KERN_ERR, ha,
1491 "Invalid PCI mem region size (%s), aborting\n",
1492 pci_name(ha->pdev));
1493 goto iospace_error_exit;
1494 }
1495
1496 ha->iobase = ioremap(pci_resource_start(ha->pdev, 1), MIN_IOBASE_LEN);
1497 if (!ha->iobase) {
1498 qla_printk(KERN_ERR, ha,
1499 "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
1500
1501 goto iospace_error_exit;
1502 }
1503
1504 return (0);
1505
1506 iospace_error_exit:
1507 return (-ENOMEM);
1508 }
1509
1510 static void
1511 qla2xxx_scan_start(struct Scsi_Host *shost)
1512 {
1513 scsi_qla_host_t *ha = shost_priv(shost);
1514
1515 set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
1516 set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
1517 set_bit(RSCN_UPDATE, &ha->dpc_flags);
1518 set_bit(NPIV_CONFIG_NEEDED, &ha->dpc_flags);
1519 }
1520
1521 static int
1522 qla2xxx_scan_finished(struct Scsi_Host *shost, unsigned long time)
1523 {
1524 scsi_qla_host_t *ha = shost_priv(shost);
1525
1526 if (!ha->host)
1527 return 1;
1528 if (time > ha->loop_reset_delay * HZ)
1529 return 1;
1530
1531 return atomic_read(&ha->loop_state) == LOOP_READY;
1532 }
1533
1534 /*
1535 * PCI driver interface
1536 */
1537 static int __devinit
1538 qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
1539 {
1540 int ret = -ENODEV;
1541 struct Scsi_Host *host;
1542 scsi_qla_host_t *ha;
1543 char pci_info[30];
1544 char fw_str[30];
1545 struct scsi_host_template *sht;
1546 int bars, mem_only = 0;
1547
1548 bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO);
1549 sht = &qla2x00_driver_template;
1550 if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
1551 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432 ||
1552 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8432 ||
1553 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5422 ||
1554 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5432 ||
1555 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2532) {
1556 bars = pci_select_bars(pdev, IORESOURCE_MEM);
1557 sht = &qla24xx_driver_template;
1558 mem_only = 1;
1559 }
1560
1561 if (mem_only) {
1562 if (pci_enable_device_mem(pdev))
1563 goto probe_out;
1564 } else {
1565 if (pci_enable_device(pdev))
1566 goto probe_out;
1567 }
1568
1569 if (pci_find_aer_capability(pdev))
1570 if (pci_enable_pcie_error_reporting(pdev))
1571 goto probe_out;
1572
1573 host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
1574 if (host == NULL) {
1575 printk(KERN_WARNING
1576 "qla2xxx: Couldn't allocate host from scsi layer!\n");
1577 goto probe_disable_device;
1578 }
1579
1580 /* Clear our data area */
1581 ha = shost_priv(host);
1582 memset(ha, 0, sizeof(scsi_qla_host_t));
1583
1584 ha->pdev = pdev;
1585 ha->host = host;
1586 ha->host_no = host->host_no;
1587 sprintf(ha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, ha->host_no);
1588 ha->parent = NULL;
1589 ha->bars = bars;
1590 ha->mem_only = mem_only;
1591 spin_lock_init(&ha->hardware_lock);
1592
1593 /* Set ISP-type information. */
1594 qla2x00_set_isp_flags(ha);
1595
1596 /* Configure PCI I/O space */
1597 ret = qla2x00_iospace_config(ha);
1598 if (ret)
1599 goto probe_failed;
1600
1601 qla_printk(KERN_INFO, ha,
1602 "Found an ISP%04X, irq %d, iobase 0x%p\n", pdev->device, pdev->irq,
1603 ha->iobase);
1604
1605 ha->prev_topology = 0;
1606 ha->init_cb_size = sizeof(init_cb_t);
1607 ha->mgmt_svr_loop_id = MANAGEMENT_SERVER + ha->vp_idx;
1608 ha->link_data_rate = PORT_SPEED_UNKNOWN;
1609 ha->optrom_size = OPTROM_SIZE_2300;
1610
1611 ha->max_q_depth = MAX_Q_DEPTH;
1612 if (ql2xmaxqdepth != 0 && ql2xmaxqdepth <= 0xffffU)
1613 ha->max_q_depth = ql2xmaxqdepth;
1614
1615 /* Assign ISP specific operations. */
1616 if (IS_QLA2100(ha)) {
1617 host->max_id = MAX_TARGETS_2100;
1618 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
1619 ha->request_q_length = REQUEST_ENTRY_CNT_2100;
1620 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1621 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1622 host->sg_tablesize = 32;
1623 ha->gid_list_info_size = 4;
1624 ha->isp_ops = &qla2100_isp_ops;
1625 } else if (IS_QLA2200(ha)) {
1626 host->max_id = MAX_TARGETS_2200;
1627 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1628 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1629 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1630 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1631 ha->gid_list_info_size = 4;
1632 ha->isp_ops = &qla2100_isp_ops;
1633 } else if (IS_QLA23XX(ha)) {
1634 host->max_id = MAX_TARGETS_2200;
1635 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1636 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1637 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1638 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1639 ha->gid_list_info_size = 6;
1640 if (IS_QLA2322(ha) || IS_QLA6322(ha))
1641 ha->optrom_size = OPTROM_SIZE_2322;
1642 ha->isp_ops = &qla2300_isp_ops;
1643 } else if (IS_QLA24XX_TYPE(ha)) {
1644 host->max_id = MAX_TARGETS_2200;
1645 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1646 ha->request_q_length = REQUEST_ENTRY_CNT_24XX;
1647 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1648 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1649 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
1650 ha->mgmt_svr_loop_id = 10 + ha->vp_idx;
1651 ha->gid_list_info_size = 8;
1652 ha->optrom_size = OPTROM_SIZE_24XX;
1653 ha->isp_ops = &qla24xx_isp_ops;
1654 } else if (IS_QLA25XX(ha)) {
1655 host->max_id = MAX_TARGETS_2200;
1656 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1657 ha->request_q_length = REQUEST_ENTRY_CNT_24XX;
1658 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1659 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1660 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
1661 ha->mgmt_svr_loop_id = 10 + ha->vp_idx;
1662 ha->gid_list_info_size = 8;
1663 ha->optrom_size = OPTROM_SIZE_25XX;
1664 ha->isp_ops = &qla25xx_isp_ops;
1665 }
1666 host->can_queue = ha->request_q_length + 128;
1667
1668 mutex_init(&ha->vport_lock);
1669 init_completion(&ha->mbx_cmd_comp);
1670 complete(&ha->mbx_cmd_comp);
1671 init_completion(&ha->mbx_intr_comp);
1672
1673 INIT_LIST_HEAD(&ha->list);
1674 INIT_LIST_HEAD(&ha->fcports);
1675 INIT_LIST_HEAD(&ha->vp_list);
1676 INIT_LIST_HEAD(&ha->work_list);
1677
1678 set_bit(0, (unsigned long *) ha->vp_idx_map);
1679
1680 qla2x00_config_dma_addressing(ha);
1681 if (qla2x00_mem_alloc(ha)) {
1682 qla_printk(KERN_WARNING, ha,
1683 "[ERROR] Failed to allocate memory for adapter\n");
1684
1685 ret = -ENOMEM;
1686 goto probe_failed;
1687 }
1688
1689 if (qla2x00_initialize_adapter(ha)) {
1690 qla_printk(KERN_WARNING, ha,
1691 "Failed to initialize adapter\n");
1692
1693 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
1694 "Adapter flags %x.\n",
1695 ha->host_no, ha->device_flags));
1696
1697 ret = -ENODEV;
1698 goto probe_failed;
1699 }
1700
1701 /*
1702 * Startup the kernel thread for this host adapter
1703 */
1704 ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
1705 "%s_dpc", ha->host_str);
1706 if (IS_ERR(ha->dpc_thread)) {
1707 qla_printk(KERN_WARNING, ha,
1708 "Unable to start DPC thread!\n");
1709 ret = PTR_ERR(ha->dpc_thread);
1710 goto probe_failed;
1711 }
1712
1713 host->this_id = 255;
1714 host->cmd_per_lun = 3;
1715 host->unique_id = host->host_no;
1716 host->max_cmd_len = MAX_CMDSZ;
1717 host->max_channel = MAX_BUSES - 1;
1718 host->max_lun = MAX_LUNS;
1719 host->transportt = qla2xxx_transport_template;
1720
1721 ret = qla2x00_request_irqs(ha);
1722 if (ret)
1723 goto probe_failed;
1724
1725 /* Initialized the timer */
1726 qla2x00_start_timer(ha, qla2x00_timer, WATCH_INTERVAL);
1727
1728 DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
1729 ha->host_no, ha));
1730
1731 pci_set_drvdata(pdev, ha);
1732
1733 ha->flags.init_done = 1;
1734 ha->flags.online = 1;
1735
1736 ret = scsi_add_host(host, &pdev->dev);
1737 if (ret)
1738 goto probe_failed;
1739
1740 ha->isp_ops->enable_intrs(ha);
1741
1742 scsi_scan_host(host);
1743
1744 qla2x00_alloc_sysfs_attr(ha);
1745
1746 qla2x00_init_host_attr(ha);
1747
1748 qla2x00_dfs_setup(ha);
1749
1750 qla_printk(KERN_INFO, ha, "\n"
1751 " QLogic Fibre Channel HBA Driver: %s\n"
1752 " QLogic %s - %s\n"
1753 " ISP%04X: %s @ %s hdma%c, host#=%ld, fw=%s\n",
1754 qla2x00_version_str, ha->model_number,
1755 ha->model_desc ? ha->model_desc: "", pdev->device,
1756 ha->isp_ops->pci_info_str(ha, pci_info), pci_name(pdev),
1757 ha->flags.enable_64bit_addressing ? '+': '-', ha->host_no,
1758 ha->isp_ops->fw_version_str(ha, fw_str));
1759
1760 return 0;
1761
1762 probe_failed:
1763 qla2x00_free_device(ha);
1764
1765 scsi_host_put(host);
1766
1767 probe_disable_device:
1768 pci_disable_device(pdev);
1769
1770 probe_out:
1771 return ret;
1772 }
1773
1774 static void
1775 qla2x00_remove_one(struct pci_dev *pdev)
1776 {
1777 scsi_qla_host_t *ha, *vha, *temp;
1778
1779 ha = pci_get_drvdata(pdev);
1780
1781 list_for_each_entry_safe(vha, temp, &ha->vp_list, vp_list)
1782 fc_vport_terminate(vha->fc_vport);
1783
1784 set_bit(UNLOADING, &ha->dpc_flags);
1785
1786 qla2x00_dfs_remove(ha);
1787
1788 qla84xx_put_chip(ha);
1789
1790 qla2x00_free_sysfs_attr(ha);
1791
1792 fc_remove_host(ha->host);
1793
1794 scsi_remove_host(ha->host);
1795
1796 qla2x00_free_device(ha);
1797
1798 scsi_host_put(ha->host);
1799
1800 pci_disable_device(pdev);
1801 pci_set_drvdata(pdev, NULL);
1802 }
1803
1804 static void
1805 qla2x00_free_device(scsi_qla_host_t *ha)
1806 {
1807 qla2x00_abort_all_cmds(ha, DID_NO_CONNECT << 16);
1808
1809 /* Disable timer */
1810 if (ha->timer_active)
1811 qla2x00_stop_timer(ha);
1812
1813 ha->flags.online = 0;
1814
1815 /* Kill the kernel thread for this host */
1816 if (ha->dpc_thread) {
1817 struct task_struct *t = ha->dpc_thread;
1818
1819 /*
1820 * qla2xxx_wake_dpc checks for ->dpc_thread
1821 * so we need to zero it out.
1822 */
1823 ha->dpc_thread = NULL;
1824 kthread_stop(t);
1825 }
1826
1827 if (ha->flags.fce_enabled)
1828 qla2x00_disable_fce_trace(ha, NULL, NULL);
1829
1830 if (ha->eft)
1831 qla2x00_disable_eft_trace(ha);
1832
1833 /* Stop currently executing firmware. */
1834 qla2x00_try_to_stop_firmware(ha);
1835
1836 /* turn-off interrupts on the card */
1837 if (ha->interrupts_on)
1838 ha->isp_ops->disable_intrs(ha);
1839
1840 qla2x00_mem_free(ha);
1841
1842 qla2x00_free_irqs(ha);
1843
1844 /* release io space registers */
1845 if (ha->iobase)
1846 iounmap(ha->iobase);
1847 pci_release_selected_regions(ha->pdev, ha->bars);
1848 }
1849
1850 static inline void
1851 qla2x00_schedule_rport_del(struct scsi_qla_host *ha, fc_port_t *fcport,
1852 int defer)
1853 {
1854 struct fc_rport *rport;
1855 scsi_qla_host_t *pha = to_qla_parent(ha);
1856
1857 if (!fcport->rport)
1858 return;
1859
1860 rport = fcport->rport;
1861 if (defer) {
1862 spin_lock_irq(ha->host->host_lock);
1863 fcport->drport = rport;
1864 spin_unlock_irq(ha->host->host_lock);
1865 set_bit(FCPORT_UPDATE_NEEDED, &pha->dpc_flags);
1866 qla2xxx_wake_dpc(pha);
1867 } else
1868 fc_remote_port_delete(rport);
1869 }
1870
1871 /*
1872 * qla2x00_mark_device_lost Updates fcport state when device goes offline.
1873 *
1874 * Input: ha = adapter block pointer. fcport = port structure pointer.
1875 *
1876 * Return: None.
1877 *
1878 * Context:
1879 */
1880 void qla2x00_mark_device_lost(scsi_qla_host_t *ha, fc_port_t *fcport,
1881 int do_login, int defer)
1882 {
1883 if (atomic_read(&fcport->state) == FCS_ONLINE &&
1884 ha->vp_idx == fcport->vp_idx)
1885 qla2x00_schedule_rport_del(ha, fcport, defer);
1886
1887 /*
1888 * We may need to retry the login, so don't change the state of the
1889 * port but do the retries.
1890 */
1891 if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
1892 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1893
1894 if (!do_login)
1895 return;
1896
1897 if (fcport->login_retry == 0) {
1898 fcport->login_retry = ha->login_retry_count;
1899 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
1900
1901 DEBUG(printk("scsi(%ld): Port login retry: "
1902 "%02x%02x%02x%02x%02x%02x%02x%02x, "
1903 "id = 0x%04x retry cnt=%d\n",
1904 ha->host_no,
1905 fcport->port_name[0],
1906 fcport->port_name[1],
1907 fcport->port_name[2],
1908 fcport->port_name[3],
1909 fcport->port_name[4],
1910 fcport->port_name[5],
1911 fcport->port_name[6],
1912 fcport->port_name[7],
1913 fcport->loop_id,
1914 fcport->login_retry));
1915 }
1916 }
1917
1918 /*
1919 * qla2x00_mark_all_devices_lost
1920 * Updates fcport state when device goes offline.
1921 *
1922 * Input:
1923 * ha = adapter block pointer.
1924 * fcport = port structure pointer.
1925 *
1926 * Return:
1927 * None.
1928 *
1929 * Context:
1930 */
1931 void
1932 qla2x00_mark_all_devices_lost(scsi_qla_host_t *ha, int defer)
1933 {
1934 fc_port_t *fcport;
1935 scsi_qla_host_t *pha = to_qla_parent(ha);
1936
1937 list_for_each_entry(fcport, &pha->fcports, list) {
1938 if (ha->vp_idx != fcport->vp_idx)
1939 continue;
1940 /*
1941 * No point in marking the device as lost, if the device is
1942 * already DEAD.
1943 */
1944 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
1945 continue;
1946 if (atomic_read(&fcport->state) == FCS_ONLINE)
1947 qla2x00_schedule_rport_del(ha, fcport, defer);
1948 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1949 }
1950 }
1951
1952 /*
1953 * qla2x00_mem_alloc
1954 * Allocates adapter memory.
1955 *
1956 * Returns:
1957 * 0 = success.
1958 * !0 = failure.
1959 */
1960 static int
1961 qla2x00_mem_alloc(scsi_qla_host_t *ha)
1962 {
1963 char name[16];
1964
1965 ha->request_ring = dma_alloc_coherent(&ha->pdev->dev,
1966 (ha->request_q_length + 1) * sizeof(request_t), &ha->request_dma,
1967 GFP_KERNEL);
1968 if (!ha->request_ring)
1969 goto fail;
1970
1971 ha->response_ring = dma_alloc_coherent(&ha->pdev->dev,
1972 (ha->response_q_length + 1) * sizeof(response_t),
1973 &ha->response_dma, GFP_KERNEL);
1974 if (!ha->response_ring)
1975 goto fail_free_request_ring;
1976
1977 ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
1978 &ha->gid_list_dma, GFP_KERNEL);
1979 if (!ha->gid_list)
1980 goto fail_free_response_ring;
1981
1982 ha->init_cb = dma_alloc_coherent(&ha->pdev->dev, ha->init_cb_size,
1983 &ha->init_cb_dma, GFP_KERNEL);
1984 if (!ha->init_cb)
1985 goto fail_free_gid_list;
1986
1987 snprintf(name, sizeof(name), "%s_%ld", QLA2XXX_DRIVER_NAME,
1988 ha->host_no);
1989 ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
1990 DMA_POOL_SIZE, 8, 0);
1991 if (!ha->s_dma_pool)
1992 goto fail_free_init_cb;
1993
1994 ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
1995 if (!ha->srb_mempool)
1996 goto fail_free_s_dma_pool;
1997
1998 /* Get memory for cached NVRAM */
1999 ha->nvram = kzalloc(MAX_NVRAM_SIZE, GFP_KERNEL);
2000 if (!ha->nvram)
2001 goto fail_free_srb_mempool;
2002
2003 /* Allocate memory for SNS commands */
2004 if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
2005 /* Get consistent memory allocated for SNS commands */
2006 ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
2007 sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma, GFP_KERNEL);
2008 if (!ha->sns_cmd)
2009 goto fail_free_nvram;
2010 } else {
2011 /* Get consistent memory allocated for MS IOCB */
2012 ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2013 &ha->ms_iocb_dma);
2014 if (!ha->ms_iocb)
2015 goto fail_free_nvram;
2016
2017 /* Get consistent memory allocated for CT SNS commands */
2018 ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
2019 sizeof(struct ct_sns_pkt), &ha->ct_sns_dma, GFP_KERNEL);
2020 if (!ha->ct_sns)
2021 goto fail_free_ms_iocb;
2022 }
2023
2024 return 0;
2025
2026 fail_free_ms_iocb:
2027 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2028 ha->ms_iocb = NULL;
2029 ha->ms_iocb_dma = 0;
2030 fail_free_nvram:
2031 kfree(ha->nvram);
2032 ha->nvram = NULL;
2033 fail_free_srb_mempool:
2034 mempool_destroy(ha->srb_mempool);
2035 ha->srb_mempool = NULL;
2036 fail_free_s_dma_pool:
2037 dma_pool_destroy(ha->s_dma_pool);
2038 ha->s_dma_pool = NULL;
2039 fail_free_init_cb:
2040 dma_free_coherent(&ha->pdev->dev, ha->init_cb_size, ha->init_cb,
2041 ha->init_cb_dma);
2042 ha->init_cb = NULL;
2043 ha->init_cb_dma = 0;
2044 fail_free_gid_list:
2045 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2046 ha->gid_list_dma);
2047 ha->gid_list = NULL;
2048 ha->gid_list_dma = 0;
2049 fail_free_response_ring:
2050 dma_free_coherent(&ha->pdev->dev, (ha->response_q_length + 1) *
2051 sizeof(response_t), ha->response_ring, ha->response_dma);
2052 ha->response_ring = NULL;
2053 ha->response_dma = 0;
2054 fail_free_request_ring:
2055 dma_free_coherent(&ha->pdev->dev, (ha->request_q_length + 1) *
2056 sizeof(request_t), ha->request_ring, ha->request_dma);
2057 ha->request_ring = NULL;
2058 ha->request_dma = 0;
2059 fail:
2060 return -ENOMEM;
2061 }
2062
2063 /*
2064 * qla2x00_mem_free
2065 * Frees all adapter allocated memory.
2066 *
2067 * Input:
2068 * ha = adapter block pointer.
2069 */
2070 static void
2071 qla2x00_mem_free(scsi_qla_host_t *ha)
2072 {
2073 struct list_head *fcpl, *fcptemp;
2074 fc_port_t *fcport;
2075
2076 if (ha->srb_mempool)
2077 mempool_destroy(ha->srb_mempool);
2078
2079 if (ha->fce)
2080 dma_free_coherent(&ha->pdev->dev, FCE_SIZE, ha->fce,
2081 ha->fce_dma);
2082
2083 if (ha->fw_dump) {
2084 if (ha->eft)
2085 dma_free_coherent(&ha->pdev->dev,
2086 ntohl(ha->fw_dump->eft_size), ha->eft, ha->eft_dma);
2087 vfree(ha->fw_dump);
2088 }
2089
2090 if (ha->sns_cmd)
2091 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
2092 ha->sns_cmd, ha->sns_cmd_dma);
2093
2094 if (ha->ct_sns)
2095 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2096 ha->ct_sns, ha->ct_sns_dma);
2097
2098 if (ha->sfp_data)
2099 dma_pool_free(ha->s_dma_pool, ha->sfp_data, ha->sfp_data_dma);
2100
2101 if (ha->ms_iocb)
2102 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2103
2104 if (ha->s_dma_pool)
2105 dma_pool_destroy(ha->s_dma_pool);
2106
2107 if (ha->init_cb)
2108 dma_free_coherent(&ha->pdev->dev, ha->init_cb_size,
2109 ha->init_cb, ha->init_cb_dma);
2110
2111 if (ha->gid_list)
2112 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2113 ha->gid_list_dma);
2114
2115 if (ha->response_ring)
2116 dma_free_coherent(&ha->pdev->dev,
2117 (ha->response_q_length + 1) * sizeof(response_t),
2118 ha->response_ring, ha->response_dma);
2119
2120 if (ha->request_ring)
2121 dma_free_coherent(&ha->pdev->dev,
2122 (ha->request_q_length + 1) * sizeof(request_t),
2123 ha->request_ring, ha->request_dma);
2124
2125 ha->srb_mempool = NULL;
2126 ha->eft = NULL;
2127 ha->eft_dma = 0;
2128 ha->sns_cmd = NULL;
2129 ha->sns_cmd_dma = 0;
2130 ha->ct_sns = NULL;
2131 ha->ct_sns_dma = 0;
2132 ha->ms_iocb = NULL;
2133 ha->ms_iocb_dma = 0;
2134 ha->init_cb = NULL;
2135 ha->init_cb_dma = 0;
2136
2137 ha->s_dma_pool = NULL;
2138
2139 ha->gid_list = NULL;
2140 ha->gid_list_dma = 0;
2141
2142 ha->response_ring = NULL;
2143 ha->response_dma = 0;
2144 ha->request_ring = NULL;
2145 ha->request_dma = 0;
2146
2147 list_for_each_safe(fcpl, fcptemp, &ha->fcports) {
2148 fcport = list_entry(fcpl, fc_port_t, list);
2149
2150 /* fc ports */
2151 list_del_init(&fcport->list);
2152 kfree(fcport);
2153 }
2154 INIT_LIST_HEAD(&ha->fcports);
2155
2156 ha->fw_dump = NULL;
2157 ha->fw_dumped = 0;
2158 ha->fw_dump_reading = 0;
2159
2160 vfree(ha->optrom_buffer);
2161 kfree(ha->nvram);
2162 }
2163
2164 static struct qla_work_evt *
2165 qla2x00_alloc_work(struct scsi_qla_host *ha, enum qla_work_type type,
2166 int locked)
2167 {
2168 struct qla_work_evt *e;
2169
2170 e = kzalloc(sizeof(struct qla_work_evt), locked ? GFP_ATOMIC:
2171 GFP_KERNEL);
2172 if (!e)
2173 return NULL;
2174
2175 INIT_LIST_HEAD(&e->list);
2176 e->type = type;
2177 e->flags = QLA_EVT_FLAG_FREE;
2178 return e;
2179 }
2180
2181 static int
2182 qla2x00_post_work(struct scsi_qla_host *ha, struct qla_work_evt *e, int locked)
2183 {
2184 unsigned long uninitialized_var(flags);
2185 scsi_qla_host_t *pha = to_qla_parent(ha);
2186
2187 if (!locked)
2188 spin_lock_irqsave(&pha->hardware_lock, flags);
2189 list_add_tail(&e->list, &ha->work_list);
2190 qla2xxx_wake_dpc(ha);
2191 if (!locked)
2192 spin_unlock_irqrestore(&pha->hardware_lock, flags);
2193 return QLA_SUCCESS;
2194 }
2195
2196 int
2197 qla2x00_post_aen_work(struct scsi_qla_host *ha, enum fc_host_event_code code,
2198 u32 data)
2199 {
2200 struct qla_work_evt *e;
2201
2202 e = qla2x00_alloc_work(ha, QLA_EVT_AEN, 1);
2203 if (!e)
2204 return QLA_FUNCTION_FAILED;
2205
2206 e->u.aen.code = code;
2207 e->u.aen.data = data;
2208 return qla2x00_post_work(ha, e, 1);
2209 }
2210
2211 int
2212 qla2x00_post_hwe_work(struct scsi_qla_host *ha, uint16_t code, uint16_t d1,
2213 uint16_t d2, uint16_t d3)
2214 {
2215 struct qla_work_evt *e;
2216
2217 e = qla2x00_alloc_work(ha, QLA_EVT_HWE_LOG, 1);
2218 if (!e)
2219 return QLA_FUNCTION_FAILED;
2220
2221 e->u.hwe.code = code;
2222 e->u.hwe.d1 = d1;
2223 e->u.hwe.d2 = d2;
2224 e->u.hwe.d3 = d3;
2225 return qla2x00_post_work(ha, e, 1);
2226 }
2227
2228 static void
2229 qla2x00_do_work(struct scsi_qla_host *ha)
2230 {
2231 struct qla_work_evt *e;
2232 scsi_qla_host_t *pha = to_qla_parent(ha);
2233
2234 spin_lock_irq(&pha->hardware_lock);
2235 while (!list_empty(&ha->work_list)) {
2236 e = list_entry(ha->work_list.next, struct qla_work_evt, list);
2237 list_del_init(&e->list);
2238 spin_unlock_irq(&pha->hardware_lock);
2239
2240 switch (e->type) {
2241 case QLA_EVT_AEN:
2242 fc_host_post_event(ha->host, fc_get_event_number(),
2243 e->u.aen.code, e->u.aen.data);
2244 break;
2245 case QLA_EVT_HWE_LOG:
2246 qla2xxx_hw_event_log(ha, e->u.hwe.code, e->u.hwe.d1,
2247 e->u.hwe.d2, e->u.hwe.d3);
2248 break;
2249 }
2250 if (e->flags & QLA_EVT_FLAG_FREE)
2251 kfree(e);
2252 spin_lock_irq(&pha->hardware_lock);
2253 }
2254 spin_unlock_irq(&pha->hardware_lock);
2255 }
2256
2257 /**************************************************************************
2258 * qla2x00_do_dpc
2259 * This kernel thread is a task that is schedule by the interrupt handler
2260 * to perform the background processing for interrupts.
2261 *
2262 * Notes:
2263 * This task always run in the context of a kernel thread. It
2264 * is kick-off by the driver's detect code and starts up
2265 * up one per adapter. It immediately goes to sleep and waits for
2266 * some fibre event. When either the interrupt handler or
2267 * the timer routine detects a event it will one of the task
2268 * bits then wake us up.
2269 **************************************************************************/
2270 static int
2271 qla2x00_do_dpc(void *data)
2272 {
2273 int rval;
2274 scsi_qla_host_t *ha;
2275 fc_port_t *fcport;
2276 uint8_t status;
2277 uint16_t next_loopid;
2278 struct scsi_qla_host *vha;
2279 int i;
2280
2281
2282 ha = (scsi_qla_host_t *)data;
2283
2284 set_user_nice(current, -20);
2285
2286 while (!kthread_should_stop()) {
2287 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
2288
2289 set_current_state(TASK_INTERRUPTIBLE);
2290 schedule();
2291 __set_current_state(TASK_RUNNING);
2292
2293 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
2294
2295 /* Initialization not yet finished. Don't do anything yet. */
2296 if (!ha->flags.init_done)
2297 continue;
2298
2299 DEBUG3(printk("scsi(%ld): DPC handler\n", ha->host_no));
2300
2301 ha->dpc_active = 1;
2302
2303 if (ha->flags.mbox_busy) {
2304 ha->dpc_active = 0;
2305 continue;
2306 }
2307
2308 qla2x00_do_work(ha);
2309
2310 if (test_and_clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) {
2311
2312 DEBUG(printk("scsi(%ld): dpc: sched "
2313 "qla2x00_abort_isp ha = %p\n",
2314 ha->host_no, ha));
2315 if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
2316 &ha->dpc_flags))) {
2317
2318 if (qla2x00_abort_isp(ha)) {
2319 /* failed. retry later */
2320 set_bit(ISP_ABORT_NEEDED,
2321 &ha->dpc_flags);
2322 }
2323 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2324 }
2325
2326 for_each_mapped_vp_idx(ha, i) {
2327 list_for_each_entry(vha, &ha->vp_list,
2328 vp_list) {
2329 if (i == vha->vp_idx) {
2330 set_bit(ISP_ABORT_NEEDED,
2331 &vha->dpc_flags);
2332 break;
2333 }
2334 }
2335 }
2336
2337 DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
2338 ha->host_no));
2339 }
2340
2341 if (test_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags)) {
2342 qla2x00_update_fcports(ha);
2343 clear_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags);
2344 }
2345
2346 if (test_and_clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) &&
2347 (!(test_and_set_bit(RESET_ACTIVE, &ha->dpc_flags)))) {
2348
2349 DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
2350 ha->host_no));
2351
2352 qla2x00_rst_aen(ha);
2353 clear_bit(RESET_ACTIVE, &ha->dpc_flags);
2354 }
2355
2356 /* Retry each device up to login retry count */
2357 if ((test_and_clear_bit(RELOGIN_NEEDED, &ha->dpc_flags)) &&
2358 !test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) &&
2359 atomic_read(&ha->loop_state) != LOOP_DOWN) {
2360
2361 DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
2362 ha->host_no));
2363
2364 next_loopid = 0;
2365 list_for_each_entry(fcport, &ha->fcports, list) {
2366 /*
2367 * If the port is not ONLINE then try to login
2368 * to it if we haven't run out of retries.
2369 */
2370 if (atomic_read(&fcport->state) != FCS_ONLINE &&
2371 fcport->login_retry) {
2372
2373 if (fcport->flags & FCF_FABRIC_DEVICE) {
2374 if (fcport->flags &
2375 FCF_TAPE_PRESENT)
2376 ha->isp_ops->fabric_logout(
2377 ha, fcport->loop_id,
2378 fcport->d_id.b.domain,
2379 fcport->d_id.b.area,
2380 fcport->d_id.b.al_pa);
2381 status = qla2x00_fabric_login(
2382 ha, fcport, &next_loopid);
2383 } else
2384 status =
2385 qla2x00_local_device_login(
2386 ha, fcport);
2387
2388 fcport->login_retry--;
2389 if (status == QLA_SUCCESS) {
2390 fcport->old_loop_id = fcport->loop_id;
2391
2392 DEBUG(printk("scsi(%ld): port login OK: logged in ID 0x%x\n",
2393 ha->host_no, fcport->loop_id));
2394
2395 qla2x00_update_fcport(ha,
2396 fcport);
2397 } else if (status == 1) {
2398 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
2399 /* retry the login again */
2400 DEBUG(printk("scsi(%ld): Retrying %d login again loop_id 0x%x\n",
2401 ha->host_no,
2402 fcport->login_retry, fcport->loop_id));
2403 } else {
2404 fcport->login_retry = 0;
2405 }
2406 if (fcport->login_retry == 0 && status != QLA_SUCCESS)
2407 fcport->loop_id = FC_NO_LOOP_ID;
2408 }
2409 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2410 break;
2411 }
2412 DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
2413 ha->host_no));
2414 }
2415
2416 if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
2417
2418 DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
2419 ha->host_no));
2420
2421 if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
2422 &ha->dpc_flags))) {
2423
2424 rval = qla2x00_loop_resync(ha);
2425
2426 clear_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags);
2427 }
2428
2429 DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
2430 ha->host_no));
2431 }
2432
2433 if (test_bit(NPIV_CONFIG_NEEDED, &ha->dpc_flags) &&
2434 atomic_read(&ha->loop_state) == LOOP_READY) {
2435 clear_bit(NPIV_CONFIG_NEEDED, &ha->dpc_flags);
2436 qla2xxx_flash_npiv_conf(ha);
2437 }
2438
2439 if (!ha->interrupts_on)
2440 ha->isp_ops->enable_intrs(ha);
2441
2442 if (test_and_clear_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags))
2443 ha->isp_ops->beacon_blink(ha);
2444
2445 qla2x00_do_dpc_all_vps(ha);
2446
2447 ha->dpc_active = 0;
2448 } /* End of while(1) */
2449
2450 DEBUG(printk("scsi(%ld): DPC handler exiting\n", ha->host_no));
2451
2452 /*
2453 * Make sure that nobody tries to wake us up again.
2454 */
2455 ha->dpc_active = 0;
2456
2457 return 0;
2458 }
2459
2460 void
2461 qla2xxx_wake_dpc(scsi_qla_host_t *ha)
2462 {
2463 struct task_struct *t = ha->dpc_thread;
2464
2465 if (!test_bit(UNLOADING, &ha->dpc_flags) && t)
2466 wake_up_process(t);
2467 }
2468
2469 /*
2470 * qla2x00_rst_aen
2471 * Processes asynchronous reset.
2472 *
2473 * Input:
2474 * ha = adapter block pointer.
2475 */
2476 static void
2477 qla2x00_rst_aen(scsi_qla_host_t *ha)
2478 {
2479 if (ha->flags.online && !ha->flags.reset_active &&
2480 !atomic_read(&ha->loop_down_timer) &&
2481 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) {
2482 do {
2483 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
2484
2485 /*
2486 * Issue marker command only when we are going to start
2487 * the I/O.
2488 */
2489 ha->marker_needed = 1;
2490 } while (!atomic_read(&ha->loop_down_timer) &&
2491 (test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags)));
2492 }
2493 }
2494
2495 static void
2496 qla2x00_sp_free_dma(scsi_qla_host_t *ha, srb_t *sp)
2497 {
2498 struct scsi_cmnd *cmd = sp->cmd;
2499
2500 if (sp->flags & SRB_DMA_VALID) {
2501 scsi_dma_unmap(cmd);
2502 sp->flags &= ~SRB_DMA_VALID;
2503 }
2504 CMD_SP(cmd) = NULL;
2505 }
2506
2507 void
2508 qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *sp)
2509 {
2510 struct scsi_cmnd *cmd = sp->cmd;
2511
2512 qla2x00_sp_free_dma(ha, sp);
2513
2514 mempool_free(sp, ha->srb_mempool);
2515
2516 cmd->scsi_done(cmd);
2517 }
2518
2519 /**************************************************************************
2520 * qla2x00_timer
2521 *
2522 * Description:
2523 * One second timer
2524 *
2525 * Context: Interrupt
2526 ***************************************************************************/
2527 void
2528 qla2x00_timer(scsi_qla_host_t *ha)
2529 {
2530 unsigned long cpu_flags = 0;
2531 fc_port_t *fcport;
2532 int start_dpc = 0;
2533 int index;
2534 srb_t *sp;
2535 int t;
2536 scsi_qla_host_t *pha = to_qla_parent(ha);
2537
2538 /*
2539 * Ports - Port down timer.
2540 *
2541 * Whenever, a port is in the LOST state we start decrementing its port
2542 * down timer every second until it reaches zero. Once it reaches zero
2543 * the port it marked DEAD.
2544 */
2545 t = 0;
2546 list_for_each_entry(fcport, &ha->fcports, list) {
2547 if (fcport->port_type != FCT_TARGET)
2548 continue;
2549
2550 if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
2551
2552 if (atomic_read(&fcport->port_down_timer) == 0)
2553 continue;
2554
2555 if (atomic_dec_and_test(&fcport->port_down_timer) != 0)
2556 atomic_set(&fcport->state, FCS_DEVICE_DEAD);
2557
2558 DEBUG(printk("scsi(%ld): fcport-%d - port retry count: "
2559 "%d remaining\n",
2560 ha->host_no,
2561 t, atomic_read(&fcport->port_down_timer)));
2562 }
2563 t++;
2564 } /* End of for fcport */
2565
2566
2567 /* Loop down handler. */
2568 if (atomic_read(&ha->loop_down_timer) > 0 &&
2569 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags)) && ha->flags.online) {
2570
2571 if (atomic_read(&ha->loop_down_timer) ==
2572 ha->loop_down_abort_time) {
2573
2574 DEBUG(printk("scsi(%ld): Loop Down - aborting the "
2575 "queues before time expire\n",
2576 ha->host_no));
2577
2578 if (!IS_QLA2100(ha) && ha->link_down_timeout)
2579 atomic_set(&ha->loop_state, LOOP_DEAD);
2580
2581 /* Schedule an ISP abort to return any tape commands. */
2582 /* NPIV - scan physical port only */
2583 if (!ha->parent) {
2584 spin_lock_irqsave(&ha->hardware_lock,
2585 cpu_flags);
2586 for (index = 1;
2587 index < MAX_OUTSTANDING_COMMANDS;
2588 index++) {
2589 fc_port_t *sfcp;
2590
2591 sp = ha->outstanding_cmds[index];
2592 if (!sp)
2593 continue;
2594 sfcp = sp->fcport;
2595 if (!(sfcp->flags & FCF_TAPE_PRESENT))
2596 continue;
2597
2598 set_bit(ISP_ABORT_NEEDED,
2599 &ha->dpc_flags);
2600 break;
2601 }
2602 spin_unlock_irqrestore(&ha->hardware_lock,
2603 cpu_flags);
2604 }
2605 set_bit(ABORT_QUEUES_NEEDED, &ha->dpc_flags);
2606 start_dpc++;
2607 }
2608
2609 /* if the loop has been down for 4 minutes, reinit adapter */
2610 if (atomic_dec_and_test(&ha->loop_down_timer) != 0) {
2611 DEBUG(printk("scsi(%ld): Loop down exceed 4 mins - "
2612 "restarting queues.\n",
2613 ha->host_no));
2614
2615 set_bit(RESTART_QUEUES_NEEDED, &ha->dpc_flags);
2616 start_dpc++;
2617
2618 if (!(ha->device_flags & DFLG_NO_CABLE) &&
2619 !ha->parent) {
2620 DEBUG(printk("scsi(%ld): Loop down - "
2621 "aborting ISP.\n",
2622 ha->host_no));
2623 qla_printk(KERN_WARNING, ha,
2624 "Loop down - aborting ISP.\n");
2625
2626 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2627 }
2628 }
2629 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
2630 ha->host_no,
2631 atomic_read(&ha->loop_down_timer)));
2632 }
2633
2634 /* Check if beacon LED needs to be blinked */
2635 if (ha->beacon_blink_led == 1) {
2636 set_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags);
2637 start_dpc++;
2638 }
2639
2640 /* Process any deferred work. */
2641 if (!list_empty(&ha->work_list))
2642 start_dpc++;
2643
2644 /* Schedule the DPC routine if needed */
2645 if ((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags) ||
2646 test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) ||
2647 test_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags) ||
2648 start_dpc ||
2649 test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) ||
2650 test_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags) ||
2651 test_bit(VP_DPC_NEEDED, &ha->dpc_flags) ||
2652 test_bit(RELOGIN_NEEDED, &ha->dpc_flags)))
2653 qla2xxx_wake_dpc(pha);
2654
2655 qla2x00_restart_timer(ha, WATCH_INTERVAL);
2656 }
2657
2658 /* Firmware interface routines. */
2659
2660 #define FW_BLOBS 6
2661 #define FW_ISP21XX 0
2662 #define FW_ISP22XX 1
2663 #define FW_ISP2300 2
2664 #define FW_ISP2322 3
2665 #define FW_ISP24XX 4
2666 #define FW_ISP25XX 5
2667
2668 #define FW_FILE_ISP21XX "ql2100_fw.bin"
2669 #define FW_FILE_ISP22XX "ql2200_fw.bin"
2670 #define FW_FILE_ISP2300 "ql2300_fw.bin"
2671 #define FW_FILE_ISP2322 "ql2322_fw.bin"
2672 #define FW_FILE_ISP24XX "ql2400_fw.bin"
2673 #define FW_FILE_ISP25XX "ql2500_fw.bin"
2674
2675 static DEFINE_MUTEX(qla_fw_lock);
2676
2677 static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
2678 { .name = FW_FILE_ISP21XX, .segs = { 0x1000, 0 }, },
2679 { .name = FW_FILE_ISP22XX, .segs = { 0x1000, 0 }, },
2680 { .name = FW_FILE_ISP2300, .segs = { 0x800, 0 }, },
2681 { .name = FW_FILE_ISP2322, .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
2682 { .name = FW_FILE_ISP24XX, },
2683 { .name = FW_FILE_ISP25XX, },
2684 };
2685
2686 struct fw_blob *
2687 qla2x00_request_firmware(scsi_qla_host_t *ha)
2688 {
2689 struct fw_blob *blob;
2690
2691 blob = NULL;
2692 if (IS_QLA2100(ha)) {
2693 blob = &qla_fw_blobs[FW_ISP21XX];
2694 } else if (IS_QLA2200(ha)) {
2695 blob = &qla_fw_blobs[FW_ISP22XX];
2696 } else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
2697 blob = &qla_fw_blobs[FW_ISP2300];
2698 } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
2699 blob = &qla_fw_blobs[FW_ISP2322];
2700 } else if (IS_QLA24XX_TYPE(ha)) {
2701 blob = &qla_fw_blobs[FW_ISP24XX];
2702 } else if (IS_QLA25XX(ha)) {
2703 blob = &qla_fw_blobs[FW_ISP25XX];
2704 }
2705
2706 mutex_lock(&qla_fw_lock);
2707 if (blob->fw)
2708 goto out;
2709
2710 if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
2711 DEBUG2(printk("scsi(%ld): Failed to load firmware image "
2712 "(%s).\n", ha->host_no, blob->name));
2713 blob->fw = NULL;
2714 blob = NULL;
2715 goto out;
2716 }
2717
2718 out:
2719 mutex_unlock(&qla_fw_lock);
2720 return blob;
2721 }
2722
2723 static void
2724 qla2x00_release_firmware(void)
2725 {
2726 int idx;
2727
2728 mutex_lock(&qla_fw_lock);
2729 for (idx = 0; idx < FW_BLOBS; idx++)
2730 if (qla_fw_blobs[idx].fw)
2731 release_firmware(qla_fw_blobs[idx].fw);
2732 mutex_unlock(&qla_fw_lock);
2733 }
2734
2735 static pci_ers_result_t
2736 qla2xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
2737 {
2738 switch (state) {
2739 case pci_channel_io_normal:
2740 return PCI_ERS_RESULT_CAN_RECOVER;
2741 case pci_channel_io_frozen:
2742 pci_disable_device(pdev);
2743 return PCI_ERS_RESULT_NEED_RESET;
2744 case pci_channel_io_perm_failure:
2745 qla2x00_remove_one(pdev);
2746 return PCI_ERS_RESULT_DISCONNECT;
2747 }
2748 return PCI_ERS_RESULT_NEED_RESET;
2749 }
2750
2751 static pci_ers_result_t
2752 qla2xxx_pci_mmio_enabled(struct pci_dev *pdev)
2753 {
2754 int risc_paused = 0;
2755 uint32_t stat;
2756 unsigned long flags;
2757 scsi_qla_host_t *ha = pci_get_drvdata(pdev);
2758 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
2759 struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
2760
2761 spin_lock_irqsave(&ha->hardware_lock, flags);
2762 if (IS_QLA2100(ha) || IS_QLA2200(ha)){
2763 stat = RD_REG_DWORD(&reg->hccr);
2764 if (stat & HCCR_RISC_PAUSE)
2765 risc_paused = 1;
2766 } else if (IS_QLA23XX(ha)) {
2767 stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
2768 if (stat & HSR_RISC_PAUSED)
2769 risc_paused = 1;
2770 } else if (IS_FWI2_CAPABLE(ha)) {
2771 stat = RD_REG_DWORD(&reg24->host_status);
2772 if (stat & HSRX_RISC_PAUSED)
2773 risc_paused = 1;
2774 }
2775 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2776
2777 if (risc_paused) {
2778 qla_printk(KERN_INFO, ha, "RISC paused -- mmio_enabled, "
2779 "Dumping firmware!\n");
2780 ha->isp_ops->fw_dump(ha, 0);
2781
2782 return PCI_ERS_RESULT_NEED_RESET;
2783 } else
2784 return PCI_ERS_RESULT_RECOVERED;
2785 }
2786
2787 static pci_ers_result_t
2788 qla2xxx_pci_slot_reset(struct pci_dev *pdev)
2789 {
2790 pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
2791 scsi_qla_host_t *ha = pci_get_drvdata(pdev);
2792 int rc;
2793
2794 if (ha->mem_only)
2795 rc = pci_enable_device_mem(pdev);
2796 else
2797 rc = pci_enable_device(pdev);
2798
2799 if (rc) {
2800 qla_printk(KERN_WARNING, ha,
2801 "Can't re-enable PCI device after reset.\n");
2802
2803 return ret;
2804 }
2805 pci_set_master(pdev);
2806
2807 if (ha->isp_ops->pci_config(ha))
2808 return ret;
2809
2810 set_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2811 if (qla2x00_abort_isp(ha)== QLA_SUCCESS)
2812 ret = PCI_ERS_RESULT_RECOVERED;
2813 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2814
2815 return ret;
2816 }
2817
2818 static void
2819 qla2xxx_pci_resume(struct pci_dev *pdev)
2820 {
2821 scsi_qla_host_t *ha = pci_get_drvdata(pdev);
2822 int ret;
2823
2824 ret = qla2x00_wait_for_hba_online(ha);
2825 if (ret != QLA_SUCCESS) {
2826 qla_printk(KERN_ERR, ha,
2827 "the device failed to resume I/O "
2828 "from slot/link_reset");
2829 }
2830 pci_cleanup_aer_uncorrect_error_status(pdev);
2831 }
2832
2833 static struct pci_error_handlers qla2xxx_err_handler = {
2834 .error_detected = qla2xxx_pci_error_detected,
2835 .mmio_enabled = qla2xxx_pci_mmio_enabled,
2836 .slot_reset = qla2xxx_pci_slot_reset,
2837 .resume = qla2xxx_pci_resume,
2838 };
2839
2840 static struct pci_device_id qla2xxx_pci_tbl[] = {
2841 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
2842 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
2843 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
2844 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
2845 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
2846 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
2847 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
2848 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
2849 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
2850 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8432) },
2851 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
2852 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
2853 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2532) },
2854 { 0 },
2855 };
2856 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
2857
2858 static struct pci_driver qla2xxx_pci_driver = {
2859 .name = QLA2XXX_DRIVER_NAME,
2860 .driver = {
2861 .owner = THIS_MODULE,
2862 },
2863 .id_table = qla2xxx_pci_tbl,
2864 .probe = qla2x00_probe_one,
2865 .remove = qla2x00_remove_one,
2866 .err_handler = &qla2xxx_err_handler,
2867 };
2868
2869 /**
2870 * qla2x00_module_init - Module initialization.
2871 **/
2872 static int __init
2873 qla2x00_module_init(void)
2874 {
2875 int ret = 0;
2876
2877 /* Allocate cache for SRBs. */
2878 srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
2879 SLAB_HWCACHE_ALIGN, NULL);
2880 if (srb_cachep == NULL) {
2881 printk(KERN_ERR
2882 "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
2883 return -ENOMEM;
2884 }
2885
2886 /* Derive version string. */
2887 strcpy(qla2x00_version_str, QLA2XXX_VERSION);
2888 if (ql2xextended_error_logging)
2889 strcat(qla2x00_version_str, "-debug");
2890
2891 qla2xxx_transport_template =
2892 fc_attach_transport(&qla2xxx_transport_functions);
2893 if (!qla2xxx_transport_template) {
2894 kmem_cache_destroy(srb_cachep);
2895 return -ENODEV;
2896 }
2897 qla2xxx_transport_vport_template =
2898 fc_attach_transport(&qla2xxx_transport_vport_functions);
2899 if (!qla2xxx_transport_vport_template) {
2900 kmem_cache_destroy(srb_cachep);
2901 fc_release_transport(qla2xxx_transport_template);
2902 return -ENODEV;
2903 }
2904
2905 printk(KERN_INFO "QLogic Fibre Channel HBA Driver: %s\n",
2906 qla2x00_version_str);
2907 ret = pci_register_driver(&qla2xxx_pci_driver);
2908 if (ret) {
2909 kmem_cache_destroy(srb_cachep);
2910 fc_release_transport(qla2xxx_transport_template);
2911 fc_release_transport(qla2xxx_transport_vport_template);
2912 }
2913 return ret;
2914 }
2915
2916 /**
2917 * qla2x00_module_exit - Module cleanup.
2918 **/
2919 static void __exit
2920 qla2x00_module_exit(void)
2921 {
2922 pci_unregister_driver(&qla2xxx_pci_driver);
2923 qla2x00_release_firmware();
2924 kmem_cache_destroy(srb_cachep);
2925 fc_release_transport(qla2xxx_transport_template);
2926 fc_release_transport(qla2xxx_transport_vport_template);
2927 }
2928
2929 module_init(qla2x00_module_init);
2930 module_exit(qla2x00_module_exit);
2931
2932 MODULE_AUTHOR("QLogic Corporation");
2933 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
2934 MODULE_LICENSE("GPL");
2935 MODULE_VERSION(QLA2XXX_VERSION);
2936 MODULE_FIRMWARE(FW_FILE_ISP21XX);
2937 MODULE_FIRMWARE(FW_FILE_ISP22XX);
2938 MODULE_FIRMWARE(FW_FILE_ISP2300);
2939 MODULE_FIRMWARE(FW_FILE_ISP2322);
2940 MODULE_FIRMWARE(FW_FILE_ISP24XX);
2941 MODULE_FIRMWARE(FW_FILE_ISP25XX);
Linux kernel - Deliverables
This page took 0.09119 seconds and 4 git commands to generate.