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Merge ../linux-2.6-watchdog-mm
[deliverable/linux.git] / drivers / scsi / qla2xxx / qla_os.c
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 static int num_hosts;
33
34 int ql2xlogintimeout = 20;
35 module_param(ql2xlogintimeout, int, S_IRUGO|S_IRUSR);
36 MODULE_PARM_DESC(ql2xlogintimeout,
37 "Login timeout value in seconds.");
38
39 int qlport_down_retry = 30;
40 module_param(qlport_down_retry, int, S_IRUGO|S_IRUSR);
41 MODULE_PARM_DESC(qlport_down_retry,
42 "Maximum number of command retries to a port that returns "
43 "a PORT-DOWN status.");
44
45 int ql2xplogiabsentdevice;
46 module_param(ql2xplogiabsentdevice, int, S_IRUGO|S_IWUSR);
47 MODULE_PARM_DESC(ql2xplogiabsentdevice,
48 "Option to enable PLOGI to devices that are not present after "
49 "a Fabric scan. This is needed for several broken switches. "
50 "Default is 0 - no PLOGI. 1 - perfom PLOGI.");
51
52 int ql2xloginretrycount = 0;
53 module_param(ql2xloginretrycount, int, S_IRUGO|S_IRUSR);
54 MODULE_PARM_DESC(ql2xloginretrycount,
55 "Specify an alternate value for the NVRAM login retry count.");
56
57 int ql2xallocfwdump = 1;
58 module_param(ql2xallocfwdump, int, S_IRUGO|S_IRUSR);
59 MODULE_PARM_DESC(ql2xallocfwdump,
60 "Option to enable allocation of memory for a firmware dump "
61 "during HBA initialization. Memory allocation requirements "
62 "vary by ISP type. Default is 1 - allocate memory.");
63
64 int ql2xextended_error_logging;
65 module_param(ql2xextended_error_logging, int, S_IRUGO|S_IRUSR);
66 MODULE_PARM_DESC(ql2xextended_error_logging,
67 "Option to enable extended error logging, "
68 "Default is 0 - no logging. 1 - log errors.");
69
70 static void qla2x00_free_device(scsi_qla_host_t *);
71
72 static void qla2x00_config_dma_addressing(scsi_qla_host_t *ha);
73
74 int ql2xfdmienable;
75 module_param(ql2xfdmienable, int, S_IRUGO|S_IRUSR);
76 MODULE_PARM_DESC(ql2xfdmienable,
77 "Enables FDMI registratons "
78 "Default is 0 - no FDMI. 1 - perfom FDMI.");
79
80 #define MAX_Q_DEPTH 32
81 static int ql2xmaxqdepth = MAX_Q_DEPTH;
82 module_param(ql2xmaxqdepth, int, S_IRUGO|S_IWUSR);
83 MODULE_PARM_DESC(ql2xmaxqdepth,
84 "Maximum queue depth to report for target devices.");
85
86 int ql2xqfullrampup = 120;
87 module_param(ql2xqfullrampup, int, S_IRUGO|S_IWUSR);
88 MODULE_PARM_DESC(ql2xqfullrampup,
89 "Number of seconds to wait to begin to ramp-up the queue "
90 "depth for a device after a queue-full condition has been "
91 "detected. Default is 120 seconds.");
92
93 /*
94 * SCSI host template entry points
95 */
96 static int qla2xxx_slave_configure(struct scsi_device * device);
97 static int qla2xxx_slave_alloc(struct scsi_device *);
98 static int qla2xxx_scan_finished(struct Scsi_Host *, unsigned long time);
99 static void qla2xxx_scan_start(struct Scsi_Host *);
100 static void qla2xxx_slave_destroy(struct scsi_device *);
101 static int qla2x00_queuecommand(struct scsi_cmnd *cmd,
102 void (*fn)(struct scsi_cmnd *));
103 static int qla24xx_queuecommand(struct scsi_cmnd *cmd,
104 void (*fn)(struct scsi_cmnd *));
105 static int qla2xxx_eh_abort(struct scsi_cmnd *);
106 static int qla2xxx_eh_device_reset(struct scsi_cmnd *);
107 static int qla2xxx_eh_bus_reset(struct scsi_cmnd *);
108 static int qla2xxx_eh_host_reset(struct scsi_cmnd *);
109 static int qla2x00_loop_reset(scsi_qla_host_t *ha);
110 static int qla2x00_device_reset(scsi_qla_host_t *, fc_port_t *);
111
112 static int qla2x00_change_queue_depth(struct scsi_device *, int);
113 static int qla2x00_change_queue_type(struct scsi_device *, int);
114
115 static struct scsi_host_template qla2x00_driver_template = {
116 .module = THIS_MODULE,
117 .name = QLA2XXX_DRIVER_NAME,
118 .queuecommand = qla2x00_queuecommand,
119
120 .eh_abort_handler = qla2xxx_eh_abort,
121 .eh_device_reset_handler = qla2xxx_eh_device_reset,
122 .eh_bus_reset_handler = qla2xxx_eh_bus_reset,
123 .eh_host_reset_handler = qla2xxx_eh_host_reset,
124
125 .slave_configure = qla2xxx_slave_configure,
126
127 .slave_alloc = qla2xxx_slave_alloc,
128 .slave_destroy = qla2xxx_slave_destroy,
129 .scan_finished = qla2xxx_scan_finished,
130 .scan_start = qla2xxx_scan_start,
131 .change_queue_depth = qla2x00_change_queue_depth,
132 .change_queue_type = qla2x00_change_queue_type,
133 .this_id = -1,
134 .cmd_per_lun = 3,
135 .use_clustering = ENABLE_CLUSTERING,
136 .sg_tablesize = SG_ALL,
137
138 /*
139 * The RISC allows for each command to transfer (2^32-1) bytes of data,
140 * which equates to 0x800000 sectors.
141 */
142 .max_sectors = 0xFFFF,
143 .shost_attrs = qla2x00_host_attrs,
144 };
145
146 static struct scsi_host_template qla24xx_driver_template = {
147 .module = THIS_MODULE,
148 .name = QLA2XXX_DRIVER_NAME,
149 .queuecommand = qla24xx_queuecommand,
150
151 .eh_abort_handler = qla2xxx_eh_abort,
152 .eh_device_reset_handler = qla2xxx_eh_device_reset,
153 .eh_bus_reset_handler = qla2xxx_eh_bus_reset,
154 .eh_host_reset_handler = qla2xxx_eh_host_reset,
155
156 .slave_configure = qla2xxx_slave_configure,
157
158 .slave_alloc = qla2xxx_slave_alloc,
159 .slave_destroy = qla2xxx_slave_destroy,
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
173 /* TODO Convert to inlines
174 *
175 * Timer routines
176 */
177 #define WATCH_INTERVAL 1 /* number of seconds */
178
179 static void qla2x00_timer(scsi_qla_host_t *);
180
181 static __inline__ void qla2x00_start_timer(scsi_qla_host_t *,
182 void *, unsigned long);
183 static __inline__ void qla2x00_restart_timer(scsi_qla_host_t *, unsigned long);
184 static __inline__ void qla2x00_stop_timer(scsi_qla_host_t *);
185
186 static inline void
187 qla2x00_start_timer(scsi_qla_host_t *ha, void *func, unsigned long interval)
188 {
189 init_timer(&ha->timer);
190 ha->timer.expires = jiffies + interval * HZ;
191 ha->timer.data = (unsigned long)ha;
192 ha->timer.function = (void (*)(unsigned long))func;
193 add_timer(&ha->timer);
194 ha->timer_active = 1;
195 }
196
197 static inline void
198 qla2x00_restart_timer(scsi_qla_host_t *ha, unsigned long interval)
199 {
200 mod_timer(&ha->timer, jiffies + interval * HZ);
201 }
202
203 static __inline__ void
204 qla2x00_stop_timer(scsi_qla_host_t *ha)
205 {
206 del_timer_sync(&ha->timer);
207 ha->timer_active = 0;
208 }
209
210 static int qla2x00_do_dpc(void *data);
211
212 static void qla2x00_rst_aen(scsi_qla_host_t *);
213
214 static uint8_t qla2x00_mem_alloc(scsi_qla_host_t *);
215 static void qla2x00_mem_free(scsi_qla_host_t *ha);
216 static int qla2x00_allocate_sp_pool( scsi_qla_host_t *ha);
217 static void qla2x00_free_sp_pool(scsi_qla_host_t *ha);
218 static void qla2x00_sp_free_dma(scsi_qla_host_t *, srb_t *);
219 void qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *);
220
221 /* -------------------------------------------------------------------------- */
222
223 static char *
224 qla2x00_pci_info_str(struct scsi_qla_host *ha, char *str)
225 {
226 static char *pci_bus_modes[] = {
227 "33", "66", "100", "133",
228 };
229 uint16_t pci_bus;
230
231 strcpy(str, "PCI");
232 pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
233 if (pci_bus) {
234 strcat(str, "-X (");
235 strcat(str, pci_bus_modes[pci_bus]);
236 } else {
237 pci_bus = (ha->pci_attr & BIT_8) >> 8;
238 strcat(str, " (");
239 strcat(str, pci_bus_modes[pci_bus]);
240 }
241 strcat(str, " MHz)");
242
243 return (str);
244 }
245
246 static char *
247 qla24xx_pci_info_str(struct scsi_qla_host *ha, char *str)
248 {
249 static char *pci_bus_modes[] = { "33", "66", "100", "133", };
250 uint32_t pci_bus;
251 int pcie_reg;
252
253 pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
254 if (pcie_reg) {
255 char lwstr[6];
256 uint16_t pcie_lstat, lspeed, lwidth;
257
258 pcie_reg += 0x12;
259 pci_read_config_word(ha->pdev, pcie_reg, &pcie_lstat);
260 lspeed = pcie_lstat & (BIT_0 | BIT_1 | BIT_2 | BIT_3);
261 lwidth = (pcie_lstat &
262 (BIT_4 | BIT_5 | BIT_6 | BIT_7 | BIT_8 | BIT_9)) >> 4;
263
264 strcpy(str, "PCIe (");
265 if (lspeed == 1)
266 strcat(str, "2.5Gb/s ");
267 else
268 strcat(str, "<unknown> ");
269 snprintf(lwstr, sizeof(lwstr), "x%d)", lwidth);
270 strcat(str, lwstr);
271
272 return str;
273 }
274
275 strcpy(str, "PCI");
276 pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
277 if (pci_bus == 0 || pci_bus == 8) {
278 strcat(str, " (");
279 strcat(str, pci_bus_modes[pci_bus >> 3]);
280 } else {
281 strcat(str, "-X ");
282 if (pci_bus & BIT_2)
283 strcat(str, "Mode 2");
284 else
285 strcat(str, "Mode 1");
286 strcat(str, " (");
287 strcat(str, pci_bus_modes[pci_bus & ~BIT_2]);
288 }
289 strcat(str, " MHz)");
290
291 return str;
292 }
293
294 static char *
295 qla2x00_fw_version_str(struct scsi_qla_host *ha, char *str)
296 {
297 char un_str[10];
298
299 sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
300 ha->fw_minor_version,
301 ha->fw_subminor_version);
302
303 if (ha->fw_attributes & BIT_9) {
304 strcat(str, "FLX");
305 return (str);
306 }
307
308 switch (ha->fw_attributes & 0xFF) {
309 case 0x7:
310 strcat(str, "EF");
311 break;
312 case 0x17:
313 strcat(str, "TP");
314 break;
315 case 0x37:
316 strcat(str, "IP");
317 break;
318 case 0x77:
319 strcat(str, "VI");
320 break;
321 default:
322 sprintf(un_str, "(%x)", ha->fw_attributes);
323 strcat(str, un_str);
324 break;
325 }
326 if (ha->fw_attributes & 0x100)
327 strcat(str, "X");
328
329 return (str);
330 }
331
332 static char *
333 qla24xx_fw_version_str(struct scsi_qla_host *ha, char *str)
334 {
335 sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
336 ha->fw_minor_version,
337 ha->fw_subminor_version);
338
339 if (ha->fw_attributes & BIT_0)
340 strcat(str, "[Class 2] ");
341 if (ha->fw_attributes & BIT_1)
342 strcat(str, "[IP] ");
343 if (ha->fw_attributes & BIT_2)
344 strcat(str, "[Multi-ID] ");
345 if (ha->fw_attributes & BIT_13)
346 strcat(str, "[Experimental]");
347 return str;
348 }
349
350 static inline srb_t *
351 qla2x00_get_new_sp(scsi_qla_host_t *ha, fc_port_t *fcport,
352 struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
353 {
354 srb_t *sp;
355
356 sp = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
357 if (!sp)
358 return sp;
359
360 sp->ha = ha;
361 sp->fcport = fcport;
362 sp->cmd = cmd;
363 sp->flags = 0;
364 CMD_SP(cmd) = (void *)sp;
365 cmd->scsi_done = done;
366
367 return sp;
368 }
369
370 static int
371 qla2x00_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
372 {
373 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
374 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
375 struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
376 srb_t *sp;
377 int rval;
378
379 rval = fc_remote_port_chkready(rport);
380 if (rval) {
381 cmd->result = rval;
382 goto qc_fail_command;
383 }
384
385 /* Close window on fcport/rport state-transitioning. */
386 if (!*(fc_port_t **)rport->dd_data) {
387 cmd->result = DID_IMM_RETRY << 16;
388 goto qc_fail_command;
389 }
390
391 if (atomic_read(&fcport->state) != FCS_ONLINE) {
392 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
393 atomic_read(&ha->loop_state) == LOOP_DEAD) {
394 cmd->result = DID_NO_CONNECT << 16;
395 goto qc_fail_command;
396 }
397 goto qc_host_busy;
398 }
399
400 spin_unlock_irq(ha->host->host_lock);
401
402 sp = qla2x00_get_new_sp(ha, fcport, cmd, done);
403 if (!sp)
404 goto qc_host_busy_lock;
405
406 rval = qla2x00_start_scsi(sp);
407 if (rval != QLA_SUCCESS)
408 goto qc_host_busy_free_sp;
409
410 spin_lock_irq(ha->host->host_lock);
411
412 return 0;
413
414 qc_host_busy_free_sp:
415 qla2x00_sp_free_dma(ha, sp);
416 mempool_free(sp, ha->srb_mempool);
417
418 qc_host_busy_lock:
419 spin_lock_irq(ha->host->host_lock);
420
421 qc_host_busy:
422 return SCSI_MLQUEUE_HOST_BUSY;
423
424 qc_fail_command:
425 done(cmd);
426
427 return 0;
428 }
429
430
431 static int
432 qla24xx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
433 {
434 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
435 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
436 struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
437 srb_t *sp;
438 int rval;
439
440 rval = fc_remote_port_chkready(rport);
441 if (rval) {
442 cmd->result = rval;
443 goto qc24_fail_command;
444 }
445
446 /* Close window on fcport/rport state-transitioning. */
447 if (!*(fc_port_t **)rport->dd_data) {
448 cmd->result = DID_IMM_RETRY << 16;
449 goto qc24_fail_command;
450 }
451
452 if (atomic_read(&fcport->state) != FCS_ONLINE) {
453 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
454 atomic_read(&ha->loop_state) == LOOP_DEAD) {
455 cmd->result = DID_NO_CONNECT << 16;
456 goto qc24_fail_command;
457 }
458 goto qc24_host_busy;
459 }
460
461 spin_unlock_irq(ha->host->host_lock);
462
463 sp = qla2x00_get_new_sp(ha, fcport, cmd, done);
464 if (!sp)
465 goto qc24_host_busy_lock;
466
467 rval = qla24xx_start_scsi(sp);
468 if (rval != QLA_SUCCESS)
469 goto qc24_host_busy_free_sp;
470
471 spin_lock_irq(ha->host->host_lock);
472
473 return 0;
474
475 qc24_host_busy_free_sp:
476 qla2x00_sp_free_dma(ha, sp);
477 mempool_free(sp, ha->srb_mempool);
478
479 qc24_host_busy_lock:
480 spin_lock_irq(ha->host->host_lock);
481
482 qc24_host_busy:
483 return SCSI_MLQUEUE_HOST_BUSY;
484
485 qc24_fail_command:
486 done(cmd);
487
488 return 0;
489 }
490
491
492 /*
493 * qla2x00_eh_wait_on_command
494 * Waits for the command to be returned by the Firmware for some
495 * max time.
496 *
497 * Input:
498 * ha = actual ha whose done queue will contain the command
499 * returned by firmware.
500 * cmd = Scsi Command to wait on.
501 * flag = Abort/Reset(Bus or Device Reset)
502 *
503 * Return:
504 * Not Found : 0
505 * Found : 1
506 */
507 static int
508 qla2x00_eh_wait_on_command(scsi_qla_host_t *ha, struct scsi_cmnd *cmd)
509 {
510 #define ABORT_POLLING_PERIOD 1000
511 #define ABORT_WAIT_ITER ((10 * 1000) / (ABORT_POLLING_PERIOD))
512 unsigned long wait_iter = ABORT_WAIT_ITER;
513 int ret = QLA_SUCCESS;
514
515 while (CMD_SP(cmd)) {
516 msleep(ABORT_POLLING_PERIOD);
517
518 if (--wait_iter)
519 break;
520 }
521 if (CMD_SP(cmd))
522 ret = QLA_FUNCTION_FAILED;
523
524 return ret;
525 }
526
527 /*
528 * qla2x00_wait_for_hba_online
529 * Wait till the HBA is online after going through
530 * <= MAX_RETRIES_OF_ISP_ABORT or
531 * finally HBA is disabled ie marked offline
532 *
533 * Input:
534 * ha - pointer to host adapter structure
535 *
536 * Note:
537 * Does context switching-Release SPIN_LOCK
538 * (if any) before calling this routine.
539 *
540 * Return:
541 * Success (Adapter is online) : 0
542 * Failed (Adapter is offline/disabled) : 1
543 */
544 int
545 qla2x00_wait_for_hba_online(scsi_qla_host_t *ha)
546 {
547 int return_status;
548 unsigned long wait_online;
549
550 wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
551 while (((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) ||
552 test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags) ||
553 test_bit(ISP_ABORT_RETRY, &ha->dpc_flags) ||
554 ha->dpc_active) && time_before(jiffies, wait_online)) {
555
556 msleep(1000);
557 }
558 if (ha->flags.online)
559 return_status = QLA_SUCCESS;
560 else
561 return_status = QLA_FUNCTION_FAILED;
562
563 DEBUG2(printk("%s return_status=%d\n",__func__,return_status));
564
565 return (return_status);
566 }
567
568 /*
569 * qla2x00_wait_for_loop_ready
570 * Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
571 * to be in LOOP_READY state.
572 * Input:
573 * ha - pointer to host adapter structure
574 *
575 * Note:
576 * Does context switching-Release SPIN_LOCK
577 * (if any) before calling this routine.
578 *
579 *
580 * Return:
581 * Success (LOOP_READY) : 0
582 * Failed (LOOP_NOT_READY) : 1
583 */
584 static inline int
585 qla2x00_wait_for_loop_ready(scsi_qla_host_t *ha)
586 {
587 int return_status = QLA_SUCCESS;
588 unsigned long loop_timeout ;
589
590 /* wait for 5 min at the max for loop to be ready */
591 loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ);
592
593 while ((!atomic_read(&ha->loop_down_timer) &&
594 atomic_read(&ha->loop_state) == LOOP_DOWN) ||
595 atomic_read(&ha->loop_state) != LOOP_READY) {
596 if (atomic_read(&ha->loop_state) == LOOP_DEAD) {
597 return_status = QLA_FUNCTION_FAILED;
598 break;
599 }
600 msleep(1000);
601 if (time_after_eq(jiffies, loop_timeout)) {
602 return_status = QLA_FUNCTION_FAILED;
603 break;
604 }
605 }
606 return (return_status);
607 }
608
609 static void
610 qla2x00_block_error_handler(struct scsi_cmnd *cmnd)
611 {
612 struct Scsi_Host *shost = cmnd->device->host;
613 struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device));
614 unsigned long flags;
615
616 spin_lock_irqsave(shost->host_lock, flags);
617 while (rport->port_state == FC_PORTSTATE_BLOCKED) {
618 spin_unlock_irqrestore(shost->host_lock, flags);
619 msleep(1000);
620 spin_lock_irqsave(shost->host_lock, flags);
621 }
622 spin_unlock_irqrestore(shost->host_lock, flags);
623 return;
624 }
625
626 /**************************************************************************
627 * qla2xxx_eh_abort
628 *
629 * Description:
630 * The abort function will abort the specified command.
631 *
632 * Input:
633 * cmd = Linux SCSI command packet to be aborted.
634 *
635 * Returns:
636 * Either SUCCESS or FAILED.
637 *
638 * Note:
639 * Only return FAILED if command not returned by firmware.
640 **************************************************************************/
641 static int
642 qla2xxx_eh_abort(struct scsi_cmnd *cmd)
643 {
644 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
645 srb_t *sp;
646 int ret, i;
647 unsigned int id, lun;
648 unsigned long serial;
649 unsigned long flags;
650 int wait = 0;
651
652 qla2x00_block_error_handler(cmd);
653
654 if (!CMD_SP(cmd))
655 return SUCCESS;
656
657 ret = SUCCESS;
658
659 id = cmd->device->id;
660 lun = cmd->device->lun;
661 serial = cmd->serial_number;
662
663 /* Check active list for command command. */
664 spin_lock_irqsave(&ha->hardware_lock, flags);
665 for (i = 1; i < MAX_OUTSTANDING_COMMANDS; i++) {
666 sp = ha->outstanding_cmds[i];
667
668 if (sp == NULL)
669 continue;
670
671 if (sp->cmd != cmd)
672 continue;
673
674 DEBUG2(printk("%s(%ld): aborting sp %p from RISC. pid=%ld.\n",
675 __func__, ha->host_no, sp, serial));
676 DEBUG3(qla2x00_print_scsi_cmd(cmd));
677
678 spin_unlock_irqrestore(&ha->hardware_lock, flags);
679 if (ha->isp_ops.abort_command(ha, sp)) {
680 DEBUG2(printk("%s(%ld): abort_command "
681 "mbx failed.\n", __func__, ha->host_no));
682 } else {
683 DEBUG3(printk("%s(%ld): abort_command "
684 "mbx success.\n", __func__, ha->host_no));
685 wait = 1;
686 }
687 spin_lock_irqsave(&ha->hardware_lock, flags);
688
689 break;
690 }
691 spin_unlock_irqrestore(&ha->hardware_lock, flags);
692
693 /* Wait for the command to be returned. */
694 if (wait) {
695 if (qla2x00_eh_wait_on_command(ha, cmd) != QLA_SUCCESS) {
696 qla_printk(KERN_ERR, ha,
697 "scsi(%ld:%d:%d): Abort handler timed out -- %lx "
698 "%x.\n", ha->host_no, id, lun, serial, ret);
699 ret = FAILED;
700 }
701 }
702
703 qla_printk(KERN_INFO, ha,
704 "scsi(%ld:%d:%d): Abort command issued -- %d %lx %x.\n",
705 ha->host_no, id, lun, wait, serial, ret);
706
707 return ret;
708 }
709
710 /**************************************************************************
711 * qla2x00_eh_wait_for_pending_target_commands
712 *
713 * Description:
714 * Waits for all the commands to come back from the specified target.
715 *
716 * Input:
717 * ha - pointer to scsi_qla_host structure.
718 * t - target
719 * Returns:
720 * Either SUCCESS or FAILED.
721 *
722 * Note:
723 **************************************************************************/
724 static int
725 qla2x00_eh_wait_for_pending_target_commands(scsi_qla_host_t *ha, unsigned int t)
726 {
727 int cnt;
728 int status;
729 srb_t *sp;
730 struct scsi_cmnd *cmd;
731 unsigned long flags;
732
733 status = 0;
734
735 /*
736 * Waiting for all commands for the designated target in the active
737 * array
738 */
739 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
740 spin_lock_irqsave(&ha->hardware_lock, flags);
741 sp = ha->outstanding_cmds[cnt];
742 if (sp) {
743 cmd = sp->cmd;
744 spin_unlock_irqrestore(&ha->hardware_lock, flags);
745 if (cmd->device->id == t) {
746 if (!qla2x00_eh_wait_on_command(ha, cmd)) {
747 status = 1;
748 break;
749 }
750 }
751 } else {
752 spin_unlock_irqrestore(&ha->hardware_lock, flags);
753 }
754 }
755 return (status);
756 }
757
758
759 /**************************************************************************
760 * qla2xxx_eh_device_reset
761 *
762 * Description:
763 * The device reset function will reset the target and abort any
764 * executing commands.
765 *
766 * NOTE: The use of SP is undefined within this context. Do *NOT*
767 * attempt to use this value, even if you determine it is
768 * non-null.
769 *
770 * Input:
771 * cmd = Linux SCSI command packet of the command that cause the
772 * bus device reset.
773 *
774 * Returns:
775 * SUCCESS/FAILURE (defined as macro in scsi.h).
776 *
777 **************************************************************************/
778 static int
779 qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
780 {
781 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
782 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
783 int ret;
784 unsigned int id, lun;
785 unsigned long serial;
786
787 qla2x00_block_error_handler(cmd);
788
789 ret = FAILED;
790
791 id = cmd->device->id;
792 lun = cmd->device->lun;
793 serial = cmd->serial_number;
794
795 if (!fcport)
796 return ret;
797
798 qla_printk(KERN_INFO, ha,
799 "scsi(%ld:%d:%d): DEVICE RESET ISSUED.\n", ha->host_no, id, lun);
800
801 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
802 goto eh_dev_reset_done;
803
804 if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
805 if (qla2x00_device_reset(ha, fcport) == 0)
806 ret = SUCCESS;
807
808 #if defined(LOGOUT_AFTER_DEVICE_RESET)
809 if (ret == SUCCESS) {
810 if (fcport->flags & FC_FABRIC_DEVICE) {
811 ha->isp_ops.fabric_logout(ha, fcport->loop_id);
812 qla2x00_mark_device_lost(ha, fcport, 0, 0);
813 }
814 }
815 #endif
816 } else {
817 DEBUG2(printk(KERN_INFO
818 "%s failed: loop not ready\n",__func__));
819 }
820
821 if (ret == FAILED) {
822 DEBUG3(printk("%s(%ld): device reset failed\n",
823 __func__, ha->host_no));
824 qla_printk(KERN_INFO, ha, "%s: device reset failed\n",
825 __func__);
826
827 goto eh_dev_reset_done;
828 }
829
830 /* Flush outstanding commands. */
831 if (qla2x00_eh_wait_for_pending_target_commands(ha, id))
832 ret = FAILED;
833 if (ret == FAILED) {
834 DEBUG3(printk("%s(%ld): failed while waiting for commands\n",
835 __func__, ha->host_no));
836 qla_printk(KERN_INFO, ha,
837 "%s: failed while waiting for commands\n", __func__);
838 } else
839 qla_printk(KERN_INFO, ha,
840 "scsi(%ld:%d:%d): DEVICE RESET SUCCEEDED.\n", ha->host_no,
841 id, lun);
842 eh_dev_reset_done:
843 return ret;
844 }
845
846 /**************************************************************************
847 * qla2x00_eh_wait_for_pending_commands
848 *
849 * Description:
850 * Waits for all the commands to come back from the specified host.
851 *
852 * Input:
853 * ha - pointer to scsi_qla_host structure.
854 *
855 * Returns:
856 * 1 : SUCCESS
857 * 0 : FAILED
858 *
859 * Note:
860 **************************************************************************/
861 static int
862 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *ha)
863 {
864 int cnt;
865 int status;
866 srb_t *sp;
867 struct scsi_cmnd *cmd;
868 unsigned long flags;
869
870 status = 1;
871
872 /*
873 * Waiting for all commands for the designated target in the active
874 * array
875 */
876 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
877 spin_lock_irqsave(&ha->hardware_lock, flags);
878 sp = ha->outstanding_cmds[cnt];
879 if (sp) {
880 cmd = sp->cmd;
881 spin_unlock_irqrestore(&ha->hardware_lock, flags);
882 status = qla2x00_eh_wait_on_command(ha, cmd);
883 if (status == 0)
884 break;
885 }
886 else {
887 spin_unlock_irqrestore(&ha->hardware_lock, flags);
888 }
889 }
890 return (status);
891 }
892
893
894 /**************************************************************************
895 * qla2xxx_eh_bus_reset
896 *
897 * Description:
898 * The bus reset function will reset the bus and abort any executing
899 * commands.
900 *
901 * Input:
902 * cmd = Linux SCSI command packet of the command that cause the
903 * bus reset.
904 *
905 * Returns:
906 * SUCCESS/FAILURE (defined as macro in scsi.h).
907 *
908 **************************************************************************/
909 static int
910 qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
911 {
912 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
913 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
914 int ret;
915 unsigned int id, lun;
916 unsigned long serial;
917
918 qla2x00_block_error_handler(cmd);
919
920 ret = FAILED;
921
922 id = cmd->device->id;
923 lun = cmd->device->lun;
924 serial = cmd->serial_number;
925
926 if (!fcport)
927 return ret;
928
929 qla_printk(KERN_INFO, ha,
930 "scsi(%ld:%d:%d): LOOP RESET ISSUED.\n", ha->host_no, id, lun);
931
932 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS) {
933 DEBUG2(printk("%s failed:board disabled\n",__func__));
934 goto eh_bus_reset_done;
935 }
936
937 if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
938 if (qla2x00_loop_reset(ha) == QLA_SUCCESS)
939 ret = SUCCESS;
940 }
941 if (ret == FAILED)
942 goto eh_bus_reset_done;
943
944 /* Flush outstanding commands. */
945 if (!qla2x00_eh_wait_for_pending_commands(ha))
946 ret = FAILED;
947
948 eh_bus_reset_done:
949 qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
950 (ret == FAILED) ? "failed" : "succeded");
951
952 return ret;
953 }
954
955 /**************************************************************************
956 * qla2xxx_eh_host_reset
957 *
958 * Description:
959 * The reset function will reset the Adapter.
960 *
961 * Input:
962 * cmd = Linux SCSI command packet of the command that cause the
963 * adapter reset.
964 *
965 * Returns:
966 * Either SUCCESS or FAILED.
967 *
968 * Note:
969 **************************************************************************/
970 static int
971 qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
972 {
973 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
974 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
975 int ret;
976 unsigned int id, lun;
977 unsigned long serial;
978
979 qla2x00_block_error_handler(cmd);
980
981 ret = FAILED;
982
983 id = cmd->device->id;
984 lun = cmd->device->lun;
985 serial = cmd->serial_number;
986
987 if (!fcport)
988 return ret;
989
990 qla_printk(KERN_INFO, ha,
991 "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", ha->host_no, id, lun);
992
993 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
994 goto eh_host_reset_lock;
995
996 /*
997 * Fixme-may be dpc thread is active and processing
998 * loop_resync,so wait a while for it to
999 * be completed and then issue big hammer.Otherwise
1000 * it may cause I/O failure as big hammer marks the
1001 * devices as lost kicking of the port_down_timer
1002 * while dpc is stuck for the mailbox to complete.
1003 */
1004 qla2x00_wait_for_loop_ready(ha);
1005 set_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
1006 if (qla2x00_abort_isp(ha)) {
1007 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
1008 /* failed. schedule dpc to try */
1009 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
1010
1011 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
1012 goto eh_host_reset_lock;
1013 }
1014 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
1015
1016 /* Waiting for our command in done_queue to be returned to OS.*/
1017 if (qla2x00_eh_wait_for_pending_commands(ha))
1018 ret = SUCCESS;
1019
1020 eh_host_reset_lock:
1021 qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
1022 (ret == FAILED) ? "failed" : "succeded");
1023
1024 return ret;
1025 }
1026
1027 /*
1028 * qla2x00_loop_reset
1029 * Issue loop reset.
1030 *
1031 * Input:
1032 * ha = adapter block pointer.
1033 *
1034 * Returns:
1035 * 0 = success
1036 */
1037 static int
1038 qla2x00_loop_reset(scsi_qla_host_t *ha)
1039 {
1040 int ret;
1041 struct fc_port *fcport;
1042
1043 if (ha->flags.enable_lip_full_login) {
1044 ret = qla2x00_full_login_lip(ha);
1045 if (ret != QLA_SUCCESS) {
1046 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1047 "full_login_lip=%d.\n", __func__, ha->host_no,
1048 ret));
1049 }
1050 atomic_set(&ha->loop_state, LOOP_DOWN);
1051 atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
1052 qla2x00_mark_all_devices_lost(ha, 0);
1053 qla2x00_wait_for_loop_ready(ha);
1054 }
1055
1056 if (ha->flags.enable_lip_reset) {
1057 ret = qla2x00_lip_reset(ha);
1058 if (ret != QLA_SUCCESS) {
1059 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1060 "lip_reset=%d.\n", __func__, ha->host_no, ret));
1061 }
1062 qla2x00_wait_for_loop_ready(ha);
1063 }
1064
1065 if (ha->flags.enable_target_reset) {
1066 list_for_each_entry(fcport, &ha->fcports, list) {
1067 if (fcport->port_type != FCT_TARGET)
1068 continue;
1069
1070 ret = qla2x00_device_reset(ha, fcport);
1071 if (ret != QLA_SUCCESS) {
1072 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1073 "target_reset=%d d_id=%x.\n", __func__,
1074 ha->host_no, ret, fcport->d_id.b24));
1075 }
1076 }
1077 }
1078
1079 /* Issue marker command only when we are going to start the I/O */
1080 ha->marker_needed = 1;
1081
1082 return QLA_SUCCESS;
1083 }
1084
1085 /*
1086 * qla2x00_device_reset
1087 * Issue bus device reset message to the target.
1088 *
1089 * Input:
1090 * ha = adapter block pointer.
1091 * t = SCSI ID.
1092 * TARGET_QUEUE_LOCK must be released.
1093 * ADAPTER_STATE_LOCK must be released.
1094 *
1095 * Context:
1096 * Kernel context.
1097 */
1098 static int
1099 qla2x00_device_reset(scsi_qla_host_t *ha, fc_port_t *reset_fcport)
1100 {
1101 /* Abort Target command will clear Reservation */
1102 return ha->isp_ops.abort_target(reset_fcport);
1103 }
1104
1105 static int
1106 qla2xxx_slave_alloc(struct scsi_device *sdev)
1107 {
1108 struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1109
1110 if (!rport || fc_remote_port_chkready(rport))
1111 return -ENXIO;
1112
1113 sdev->hostdata = *(fc_port_t **)rport->dd_data;
1114
1115 return 0;
1116 }
1117
1118 static int
1119 qla2xxx_slave_configure(struct scsi_device *sdev)
1120 {
1121 scsi_qla_host_t *ha = to_qla_host(sdev->host);
1122 struct fc_rport *rport = starget_to_rport(sdev->sdev_target);
1123
1124 if (sdev->tagged_supported)
1125 scsi_activate_tcq(sdev, ha->max_q_depth);
1126 else
1127 scsi_deactivate_tcq(sdev, ha->max_q_depth);
1128
1129 rport->dev_loss_tmo = ha->port_down_retry_count + 5;
1130
1131 return 0;
1132 }
1133
1134 static void
1135 qla2xxx_slave_destroy(struct scsi_device *sdev)
1136 {
1137 sdev->hostdata = NULL;
1138 }
1139
1140 static int
1141 qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth)
1142 {
1143 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1144 return sdev->queue_depth;
1145 }
1146
1147 static int
1148 qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1149 {
1150 if (sdev->tagged_supported) {
1151 scsi_set_tag_type(sdev, tag_type);
1152 if (tag_type)
1153 scsi_activate_tcq(sdev, sdev->queue_depth);
1154 else
1155 scsi_deactivate_tcq(sdev, sdev->queue_depth);
1156 } else
1157 tag_type = 0;
1158
1159 return tag_type;
1160 }
1161
1162 /**
1163 * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1164 * @ha: HA context
1165 *
1166 * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1167 * supported addressing method.
1168 */
1169 static void
1170 qla2x00_config_dma_addressing(scsi_qla_host_t *ha)
1171 {
1172 /* Assume a 32bit DMA mask. */
1173 ha->flags.enable_64bit_addressing = 0;
1174
1175 if (!dma_set_mask(&ha->pdev->dev, DMA_64BIT_MASK)) {
1176 /* Any upper-dword bits set? */
1177 if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1178 !pci_set_consistent_dma_mask(ha->pdev, DMA_64BIT_MASK)) {
1179 /* Ok, a 64bit DMA mask is applicable. */
1180 ha->flags.enable_64bit_addressing = 1;
1181 ha->isp_ops.calc_req_entries = qla2x00_calc_iocbs_64;
1182 ha->isp_ops.build_iocbs = qla2x00_build_scsi_iocbs_64;
1183 return;
1184 }
1185 }
1186
1187 dma_set_mask(&ha->pdev->dev, DMA_32BIT_MASK);
1188 pci_set_consistent_dma_mask(ha->pdev, DMA_32BIT_MASK);
1189 }
1190
1191 static inline void
1192 qla2x00_set_isp_flags(scsi_qla_host_t *ha)
1193 {
1194 ha->device_type = DT_EXTENDED_IDS;
1195 switch (ha->pdev->device) {
1196 case PCI_DEVICE_ID_QLOGIC_ISP2100:
1197 ha->device_type |= DT_ISP2100;
1198 ha->device_type &= ~DT_EXTENDED_IDS;
1199 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1200 break;
1201 case PCI_DEVICE_ID_QLOGIC_ISP2200:
1202 ha->device_type |= DT_ISP2200;
1203 ha->device_type &= ~DT_EXTENDED_IDS;
1204 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1205 break;
1206 case PCI_DEVICE_ID_QLOGIC_ISP2300:
1207 ha->device_type |= DT_ISP2300;
1208 ha->device_type |= DT_ZIO_SUPPORTED;
1209 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1210 break;
1211 case PCI_DEVICE_ID_QLOGIC_ISP2312:
1212 ha->device_type |= DT_ISP2312;
1213 ha->device_type |= DT_ZIO_SUPPORTED;
1214 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1215 break;
1216 case PCI_DEVICE_ID_QLOGIC_ISP2322:
1217 ha->device_type |= DT_ISP2322;
1218 ha->device_type |= DT_ZIO_SUPPORTED;
1219 if (ha->pdev->subsystem_vendor == 0x1028 &&
1220 ha->pdev->subsystem_device == 0x0170)
1221 ha->device_type |= DT_OEM_001;
1222 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1223 break;
1224 case PCI_DEVICE_ID_QLOGIC_ISP6312:
1225 ha->device_type |= DT_ISP6312;
1226 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1227 break;
1228 case PCI_DEVICE_ID_QLOGIC_ISP6322:
1229 ha->device_type |= DT_ISP6322;
1230 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1231 break;
1232 case PCI_DEVICE_ID_QLOGIC_ISP2422:
1233 ha->device_type |= DT_ISP2422;
1234 ha->device_type |= DT_ZIO_SUPPORTED;
1235 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1236 break;
1237 case PCI_DEVICE_ID_QLOGIC_ISP2432:
1238 ha->device_type |= DT_ISP2432;
1239 ha->device_type |= DT_ZIO_SUPPORTED;
1240 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1241 break;
1242 case PCI_DEVICE_ID_QLOGIC_ISP5422:
1243 ha->device_type |= DT_ISP5422;
1244 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1245 break;
1246 case PCI_DEVICE_ID_QLOGIC_ISP5432:
1247 ha->device_type |= DT_ISP5432;
1248 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1249 break;
1250 }
1251 }
1252
1253 static int
1254 qla2x00_iospace_config(scsi_qla_host_t *ha)
1255 {
1256 unsigned long pio, pio_len, pio_flags;
1257 unsigned long mmio, mmio_len, mmio_flags;
1258
1259 /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1260 pio = pci_resource_start(ha->pdev, 0);
1261 pio_len = pci_resource_len(ha->pdev, 0);
1262 pio_flags = pci_resource_flags(ha->pdev, 0);
1263 if (pio_flags & IORESOURCE_IO) {
1264 if (pio_len < MIN_IOBASE_LEN) {
1265 qla_printk(KERN_WARNING, ha,
1266 "Invalid PCI I/O region size (%s)...\n",
1267 pci_name(ha->pdev));
1268 pio = 0;
1269 }
1270 } else {
1271 qla_printk(KERN_WARNING, ha,
1272 "region #0 not a PIO resource (%s)...\n",
1273 pci_name(ha->pdev));
1274 pio = 0;
1275 }
1276
1277 /* Use MMIO operations for all accesses. */
1278 mmio = pci_resource_start(ha->pdev, 1);
1279 mmio_len = pci_resource_len(ha->pdev, 1);
1280 mmio_flags = pci_resource_flags(ha->pdev, 1);
1281
1282 if (!(mmio_flags & IORESOURCE_MEM)) {
1283 qla_printk(KERN_ERR, ha,
1284 "region #0 not an MMIO resource (%s), aborting\n",
1285 pci_name(ha->pdev));
1286 goto iospace_error_exit;
1287 }
1288 if (mmio_len < MIN_IOBASE_LEN) {
1289 qla_printk(KERN_ERR, ha,
1290 "Invalid PCI mem region size (%s), aborting\n",
1291 pci_name(ha->pdev));
1292 goto iospace_error_exit;
1293 }
1294
1295 if (pci_request_regions(ha->pdev, QLA2XXX_DRIVER_NAME)) {
1296 qla_printk(KERN_WARNING, ha,
1297 "Failed to reserve PIO/MMIO regions (%s)\n",
1298 pci_name(ha->pdev));
1299
1300 goto iospace_error_exit;
1301 }
1302
1303 ha->pio_address = pio;
1304 ha->pio_length = pio_len;
1305 ha->iobase = ioremap(mmio, MIN_IOBASE_LEN);
1306 if (!ha->iobase) {
1307 qla_printk(KERN_ERR, ha,
1308 "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
1309
1310 goto iospace_error_exit;
1311 }
1312
1313 return (0);
1314
1315 iospace_error_exit:
1316 return (-ENOMEM);
1317 }
1318
1319 static void
1320 qla2x00_enable_intrs(scsi_qla_host_t *ha)
1321 {
1322 unsigned long flags = 0;
1323 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1324
1325 spin_lock_irqsave(&ha->hardware_lock, flags);
1326 ha->interrupts_on = 1;
1327 /* enable risc and host interrupts */
1328 WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1329 RD_REG_WORD(&reg->ictrl);
1330 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1331
1332 }
1333
1334 static void
1335 qla2x00_disable_intrs(scsi_qla_host_t *ha)
1336 {
1337 unsigned long flags = 0;
1338 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1339
1340 spin_lock_irqsave(&ha->hardware_lock, flags);
1341 ha->interrupts_on = 0;
1342 /* disable risc and host interrupts */
1343 WRT_REG_WORD(&reg->ictrl, 0);
1344 RD_REG_WORD(&reg->ictrl);
1345 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1346 }
1347
1348 static void
1349 qla24xx_enable_intrs(scsi_qla_host_t *ha)
1350 {
1351 unsigned long flags = 0;
1352 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1353
1354 spin_lock_irqsave(&ha->hardware_lock, flags);
1355 ha->interrupts_on = 1;
1356 WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1357 RD_REG_DWORD(&reg->ictrl);
1358 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1359 }
1360
1361 static void
1362 qla24xx_disable_intrs(scsi_qla_host_t *ha)
1363 {
1364 unsigned long flags = 0;
1365 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1366
1367 spin_lock_irqsave(&ha->hardware_lock, flags);
1368 ha->interrupts_on = 0;
1369 WRT_REG_DWORD(&reg->ictrl, 0);
1370 RD_REG_DWORD(&reg->ictrl);
1371 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1372 }
1373
1374 static void
1375 qla2xxx_scan_start(struct Scsi_Host *shost)
1376 {
1377 scsi_qla_host_t *ha = (scsi_qla_host_t *)shost->hostdata;
1378
1379 set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
1380 set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
1381 set_bit(RSCN_UPDATE, &ha->dpc_flags);
1382 }
1383
1384 static int
1385 qla2xxx_scan_finished(struct Scsi_Host *shost, unsigned long time)
1386 {
1387 scsi_qla_host_t *ha = (scsi_qla_host_t *)shost->hostdata;
1388
1389 if (!ha->host)
1390 return 1;
1391 if (time > ha->loop_reset_delay * HZ)
1392 return 1;
1393
1394 return atomic_read(&ha->loop_state) == LOOP_READY;
1395 }
1396
1397 /*
1398 * PCI driver interface
1399 */
1400 static int __devinit
1401 qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
1402 {
1403 int ret = -ENODEV;
1404 device_reg_t __iomem *reg;
1405 struct Scsi_Host *host;
1406 scsi_qla_host_t *ha;
1407 unsigned long flags = 0;
1408 char pci_info[20];
1409 char fw_str[30];
1410 struct scsi_host_template *sht;
1411
1412 if (pci_enable_device(pdev))
1413 goto probe_out;
1414
1415 sht = &qla2x00_driver_template;
1416 if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
1417 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432 ||
1418 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5422 ||
1419 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5432)
1420 sht = &qla24xx_driver_template;
1421 host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
1422 if (host == NULL) {
1423 printk(KERN_WARNING
1424 "qla2xxx: Couldn't allocate host from scsi layer!\n");
1425 goto probe_disable_device;
1426 }
1427
1428 /* Clear our data area */
1429 ha = (scsi_qla_host_t *)host->hostdata;
1430 memset(ha, 0, sizeof(scsi_qla_host_t));
1431
1432 ha->pdev = pdev;
1433 ha->host = host;
1434 ha->host_no = host->host_no;
1435 sprintf(ha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, ha->host_no);
1436
1437 /* Set ISP-type information. */
1438 qla2x00_set_isp_flags(ha);
1439
1440 /* Configure PCI I/O space */
1441 ret = qla2x00_iospace_config(ha);
1442 if (ret)
1443 goto probe_failed;
1444
1445 qla_printk(KERN_INFO, ha,
1446 "Found an ISP%04X, irq %d, iobase 0x%p\n", pdev->device, pdev->irq,
1447 ha->iobase);
1448
1449 spin_lock_init(&ha->hardware_lock);
1450
1451 ha->prev_topology = 0;
1452 ha->init_cb_size = sizeof(init_cb_t);
1453 ha->mgmt_svr_loop_id = MANAGEMENT_SERVER;
1454 ha->link_data_rate = PORT_SPEED_UNKNOWN;
1455 ha->optrom_size = OPTROM_SIZE_2300;
1456
1457 ha->max_q_depth = MAX_Q_DEPTH;
1458 if (ql2xmaxqdepth != 0 && ql2xmaxqdepth <= 0xffffU)
1459 ha->max_q_depth = ql2xmaxqdepth;
1460
1461 /* Assign ISP specific operations. */
1462 ha->isp_ops.pci_config = qla2100_pci_config;
1463 ha->isp_ops.reset_chip = qla2x00_reset_chip;
1464 ha->isp_ops.chip_diag = qla2x00_chip_diag;
1465 ha->isp_ops.config_rings = qla2x00_config_rings;
1466 ha->isp_ops.reset_adapter = qla2x00_reset_adapter;
1467 ha->isp_ops.nvram_config = qla2x00_nvram_config;
1468 ha->isp_ops.update_fw_options = qla2x00_update_fw_options;
1469 ha->isp_ops.load_risc = qla2x00_load_risc;
1470 ha->isp_ops.pci_info_str = qla2x00_pci_info_str;
1471 ha->isp_ops.fw_version_str = qla2x00_fw_version_str;
1472 ha->isp_ops.intr_handler = qla2100_intr_handler;
1473 ha->isp_ops.enable_intrs = qla2x00_enable_intrs;
1474 ha->isp_ops.disable_intrs = qla2x00_disable_intrs;
1475 ha->isp_ops.abort_command = qla2x00_abort_command;
1476 ha->isp_ops.abort_target = qla2x00_abort_target;
1477 ha->isp_ops.fabric_login = qla2x00_login_fabric;
1478 ha->isp_ops.fabric_logout = qla2x00_fabric_logout;
1479 ha->isp_ops.calc_req_entries = qla2x00_calc_iocbs_32;
1480 ha->isp_ops.build_iocbs = qla2x00_build_scsi_iocbs_32;
1481 ha->isp_ops.prep_ms_iocb = qla2x00_prep_ms_iocb;
1482 ha->isp_ops.prep_ms_fdmi_iocb = qla2x00_prep_ms_fdmi_iocb;
1483 ha->isp_ops.read_nvram = qla2x00_read_nvram_data;
1484 ha->isp_ops.write_nvram = qla2x00_write_nvram_data;
1485 ha->isp_ops.fw_dump = qla2100_fw_dump;
1486 ha->isp_ops.read_optrom = qla2x00_read_optrom_data;
1487 ha->isp_ops.write_optrom = qla2x00_write_optrom_data;
1488 if (IS_QLA2100(ha)) {
1489 host->max_id = MAX_TARGETS_2100;
1490 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
1491 ha->request_q_length = REQUEST_ENTRY_CNT_2100;
1492 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1493 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1494 host->sg_tablesize = 32;
1495 ha->gid_list_info_size = 4;
1496 } else if (IS_QLA2200(ha)) {
1497 host->max_id = MAX_TARGETS_2200;
1498 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1499 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1500 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1501 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1502 ha->gid_list_info_size = 4;
1503 } else if (IS_QLA23XX(ha)) {
1504 host->max_id = MAX_TARGETS_2200;
1505 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1506 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1507 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1508 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1509 ha->isp_ops.pci_config = qla2300_pci_config;
1510 ha->isp_ops.intr_handler = qla2300_intr_handler;
1511 ha->isp_ops.fw_dump = qla2300_fw_dump;
1512 ha->isp_ops.beacon_on = qla2x00_beacon_on;
1513 ha->isp_ops.beacon_off = qla2x00_beacon_off;
1514 ha->isp_ops.beacon_blink = qla2x00_beacon_blink;
1515 ha->gid_list_info_size = 6;
1516 if (IS_QLA2322(ha) || IS_QLA6322(ha))
1517 ha->optrom_size = OPTROM_SIZE_2322;
1518 } else if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
1519 host->max_id = MAX_TARGETS_2200;
1520 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1521 ha->request_q_length = REQUEST_ENTRY_CNT_24XX;
1522 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1523 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1524 ha->init_cb_size = sizeof(struct init_cb_24xx);
1525 ha->mgmt_svr_loop_id = 10;
1526 ha->isp_ops.pci_config = qla24xx_pci_config;
1527 ha->isp_ops.reset_chip = qla24xx_reset_chip;
1528 ha->isp_ops.chip_diag = qla24xx_chip_diag;
1529 ha->isp_ops.config_rings = qla24xx_config_rings;
1530 ha->isp_ops.reset_adapter = qla24xx_reset_adapter;
1531 ha->isp_ops.nvram_config = qla24xx_nvram_config;
1532 ha->isp_ops.update_fw_options = qla24xx_update_fw_options;
1533 ha->isp_ops.load_risc = qla24xx_load_risc;
1534 ha->isp_ops.pci_info_str = qla24xx_pci_info_str;
1535 ha->isp_ops.fw_version_str = qla24xx_fw_version_str;
1536 ha->isp_ops.intr_handler = qla24xx_intr_handler;
1537 ha->isp_ops.enable_intrs = qla24xx_enable_intrs;
1538 ha->isp_ops.disable_intrs = qla24xx_disable_intrs;
1539 ha->isp_ops.abort_command = qla24xx_abort_command;
1540 ha->isp_ops.abort_target = qla24xx_abort_target;
1541 ha->isp_ops.fabric_login = qla24xx_login_fabric;
1542 ha->isp_ops.fabric_logout = qla24xx_fabric_logout;
1543 ha->isp_ops.prep_ms_iocb = qla24xx_prep_ms_iocb;
1544 ha->isp_ops.prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb;
1545 ha->isp_ops.read_nvram = qla24xx_read_nvram_data;
1546 ha->isp_ops.write_nvram = qla24xx_write_nvram_data;
1547 ha->isp_ops.fw_dump = qla24xx_fw_dump;
1548 ha->isp_ops.read_optrom = qla24xx_read_optrom_data;
1549 ha->isp_ops.write_optrom = qla24xx_write_optrom_data;
1550 ha->isp_ops.beacon_on = qla24xx_beacon_on;
1551 ha->isp_ops.beacon_off = qla24xx_beacon_off;
1552 ha->isp_ops.beacon_blink = qla24xx_beacon_blink;
1553 ha->gid_list_info_size = 8;
1554 ha->optrom_size = OPTROM_SIZE_24XX;
1555 }
1556 host->can_queue = ha->request_q_length + 128;
1557
1558 /* load the F/W, read paramaters, and init the H/W */
1559 ha->instance = num_hosts;
1560
1561 init_MUTEX(&ha->mbx_cmd_sem);
1562 init_MUTEX_LOCKED(&ha->mbx_intr_sem);
1563
1564 INIT_LIST_HEAD(&ha->list);
1565 INIT_LIST_HEAD(&ha->fcports);
1566
1567 /*
1568 * These locks are used to prevent more than one CPU
1569 * from modifying the queue at the same time. The
1570 * higher level "host_lock" will reduce most
1571 * contention for these locks.
1572 */
1573 spin_lock_init(&ha->mbx_reg_lock);
1574
1575 qla2x00_config_dma_addressing(ha);
1576 if (qla2x00_mem_alloc(ha)) {
1577 qla_printk(KERN_WARNING, ha,
1578 "[ERROR] Failed to allocate memory for adapter\n");
1579
1580 ret = -ENOMEM;
1581 goto probe_failed;
1582 }
1583
1584 if (qla2x00_initialize_adapter(ha) &&
1585 !(ha->device_flags & DFLG_NO_CABLE)) {
1586
1587 qla_printk(KERN_WARNING, ha,
1588 "Failed to initialize adapter\n");
1589
1590 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
1591 "Adapter flags %x.\n",
1592 ha->host_no, ha->device_flags));
1593
1594 ret = -ENODEV;
1595 goto probe_failed;
1596 }
1597
1598 /*
1599 * Startup the kernel thread for this host adapter
1600 */
1601 ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
1602 "%s_dpc", ha->host_str);
1603 if (IS_ERR(ha->dpc_thread)) {
1604 qla_printk(KERN_WARNING, ha,
1605 "Unable to start DPC thread!\n");
1606 ret = PTR_ERR(ha->dpc_thread);
1607 goto probe_failed;
1608 }
1609
1610 host->this_id = 255;
1611 host->cmd_per_lun = 3;
1612 host->unique_id = ha->instance;
1613 host->max_cmd_len = MAX_CMDSZ;
1614 host->max_channel = MAX_BUSES - 1;
1615 host->max_lun = MAX_LUNS;
1616 host->transportt = qla2xxx_transport_template;
1617
1618 ret = request_irq(pdev->irq, ha->isp_ops.intr_handler,
1619 IRQF_DISABLED|IRQF_SHARED, QLA2XXX_DRIVER_NAME, ha);
1620 if (ret) {
1621 qla_printk(KERN_WARNING, ha,
1622 "Failed to reserve interrupt %d already in use.\n",
1623 pdev->irq);
1624 goto probe_failed;
1625 }
1626 host->irq = pdev->irq;
1627
1628 /* Initialized the timer */
1629 qla2x00_start_timer(ha, qla2x00_timer, WATCH_INTERVAL);
1630
1631 DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
1632 ha->host_no, ha));
1633
1634 ha->isp_ops.disable_intrs(ha);
1635
1636 spin_lock_irqsave(&ha->hardware_lock, flags);
1637 reg = ha->iobase;
1638 if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
1639 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_HOST_INT);
1640 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_RISC_INT);
1641 } else {
1642 WRT_REG_WORD(&reg->isp.semaphore, 0);
1643 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_RISC_INT);
1644 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_HOST_INT);
1645
1646 /* Enable proper parity */
1647 if (!IS_QLA2100(ha) && !IS_QLA2200(ha)) {
1648 if (IS_QLA2300(ha))
1649 /* SRAM parity */
1650 WRT_REG_WORD(&reg->isp.hccr,
1651 (HCCR_ENABLE_PARITY + 0x1));
1652 else
1653 /* SRAM, Instruction RAM and GP RAM parity */
1654 WRT_REG_WORD(&reg->isp.hccr,
1655 (HCCR_ENABLE_PARITY + 0x7));
1656 }
1657 }
1658 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1659
1660 ha->isp_ops.enable_intrs(ha);
1661
1662 pci_set_drvdata(pdev, ha);
1663
1664 ha->flags.init_done = 1;
1665 ha->flags.online = 1;
1666
1667 num_hosts++;
1668
1669 ret = scsi_add_host(host, &pdev->dev);
1670 if (ret)
1671 goto probe_failed;
1672
1673 scsi_scan_host(host);
1674
1675 qla2x00_alloc_sysfs_attr(ha);
1676
1677 qla2x00_init_host_attr(ha);
1678
1679 qla_printk(KERN_INFO, ha, "\n"
1680 " QLogic Fibre Channel HBA Driver: %s\n"
1681 " QLogic %s - %s\n"
1682 " ISP%04X: %s @ %s hdma%c, host#=%ld, fw=%s\n",
1683 qla2x00_version_str, ha->model_number,
1684 ha->model_desc ? ha->model_desc: "", pdev->device,
1685 ha->isp_ops.pci_info_str(ha, pci_info), pci_name(pdev),
1686 ha->flags.enable_64bit_addressing ? '+': '-', ha->host_no,
1687 ha->isp_ops.fw_version_str(ha, fw_str));
1688
1689 return 0;
1690
1691 probe_failed:
1692 qla2x00_free_device(ha);
1693
1694 scsi_host_put(host);
1695
1696 probe_disable_device:
1697 pci_disable_device(pdev);
1698
1699 probe_out:
1700 return ret;
1701 }
1702
1703 static void __devexit
1704 qla2x00_remove_one(struct pci_dev *pdev)
1705 {
1706 scsi_qla_host_t *ha;
1707
1708 ha = pci_get_drvdata(pdev);
1709
1710 qla2x00_free_sysfs_attr(ha);
1711
1712 fc_remove_host(ha->host);
1713
1714 scsi_remove_host(ha->host);
1715
1716 qla2x00_free_device(ha);
1717
1718 scsi_host_put(ha->host);
1719
1720 pci_set_drvdata(pdev, NULL);
1721 }
1722
1723 static void
1724 qla2x00_free_device(scsi_qla_host_t *ha)
1725 {
1726 /* Disable timer */
1727 if (ha->timer_active)
1728 qla2x00_stop_timer(ha);
1729
1730 /* Kill the kernel thread for this host */
1731 if (ha->dpc_thread) {
1732 struct task_struct *t = ha->dpc_thread;
1733
1734 /*
1735 * qla2xxx_wake_dpc checks for ->dpc_thread
1736 * so we need to zero it out.
1737 */
1738 ha->dpc_thread = NULL;
1739 kthread_stop(t);
1740 }
1741
1742 if (ha->eft)
1743 qla2x00_trace_control(ha, TC_DISABLE, 0, 0);
1744
1745 ha->flags.online = 0;
1746
1747 /* Stop currently executing firmware. */
1748 qla2x00_try_to_stop_firmware(ha);
1749
1750 /* turn-off interrupts on the card */
1751 if (ha->interrupts_on)
1752 ha->isp_ops.disable_intrs(ha);
1753
1754 qla2x00_mem_free(ha);
1755
1756 /* Detach interrupts */
1757 if (ha->host->irq)
1758 free_irq(ha->host->irq, ha);
1759
1760 /* release io space registers */
1761 if (ha->iobase)
1762 iounmap(ha->iobase);
1763 pci_release_regions(ha->pdev);
1764
1765 pci_disable_device(ha->pdev);
1766 }
1767
1768 static inline void
1769 qla2x00_schedule_rport_del(struct scsi_qla_host *ha, fc_port_t *fcport,
1770 int defer)
1771 {
1772 unsigned long flags;
1773 struct fc_rport *rport;
1774
1775 if (!fcport->rport)
1776 return;
1777
1778 rport = fcport->rport;
1779 if (defer) {
1780 spin_lock_irqsave(&fcport->rport_lock, flags);
1781 fcport->drport = rport;
1782 fcport->rport = NULL;
1783 *(fc_port_t **)rport->dd_data = NULL;
1784 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1785 set_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags);
1786 } else {
1787 spin_lock_irqsave(&fcport->rport_lock, flags);
1788 fcport->rport = NULL;
1789 *(fc_port_t **)rport->dd_data = NULL;
1790 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1791 fc_remote_port_delete(rport);
1792 }
1793 }
1794
1795 /*
1796 * qla2x00_mark_device_lost Updates fcport state when device goes offline.
1797 *
1798 * Input: ha = adapter block pointer. fcport = port structure pointer.
1799 *
1800 * Return: None.
1801 *
1802 * Context:
1803 */
1804 void qla2x00_mark_device_lost(scsi_qla_host_t *ha, fc_port_t *fcport,
1805 int do_login, int defer)
1806 {
1807 if (atomic_read(&fcport->state) == FCS_ONLINE)
1808 qla2x00_schedule_rport_del(ha, fcport, defer);
1809
1810 /*
1811 * We may need to retry the login, so don't change the state of the
1812 * port but do the retries.
1813 */
1814 if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
1815 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1816
1817 if (!do_login)
1818 return;
1819
1820 if (fcport->login_retry == 0) {
1821 fcport->login_retry = ha->login_retry_count;
1822 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
1823
1824 DEBUG(printk("scsi(%ld): Port login retry: "
1825 "%02x%02x%02x%02x%02x%02x%02x%02x, "
1826 "id = 0x%04x retry cnt=%d\n",
1827 ha->host_no,
1828 fcport->port_name[0],
1829 fcport->port_name[1],
1830 fcport->port_name[2],
1831 fcport->port_name[3],
1832 fcport->port_name[4],
1833 fcport->port_name[5],
1834 fcport->port_name[6],
1835 fcport->port_name[7],
1836 fcport->loop_id,
1837 fcport->login_retry));
1838 }
1839 }
1840
1841 /*
1842 * qla2x00_mark_all_devices_lost
1843 * Updates fcport state when device goes offline.
1844 *
1845 * Input:
1846 * ha = adapter block pointer.
1847 * fcport = port structure pointer.
1848 *
1849 * Return:
1850 * None.
1851 *
1852 * Context:
1853 */
1854 void
1855 qla2x00_mark_all_devices_lost(scsi_qla_host_t *ha, int defer)
1856 {
1857 fc_port_t *fcport;
1858
1859 list_for_each_entry(fcport, &ha->fcports, list) {
1860 if (fcport->port_type != FCT_TARGET)
1861 continue;
1862
1863 /*
1864 * No point in marking the device as lost, if the device is
1865 * already DEAD.
1866 */
1867 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
1868 continue;
1869 if (atomic_read(&fcport->state) == FCS_ONLINE)
1870 qla2x00_schedule_rport_del(ha, fcport, defer);
1871 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1872 }
1873
1874 if (defer)
1875 qla2xxx_wake_dpc(ha);
1876 }
1877
1878 /*
1879 * qla2x00_mem_alloc
1880 * Allocates adapter memory.
1881 *
1882 * Returns:
1883 * 0 = success.
1884 * 1 = failure.
1885 */
1886 static uint8_t
1887 qla2x00_mem_alloc(scsi_qla_host_t *ha)
1888 {
1889 char name[16];
1890 uint8_t status = 1;
1891 int retry= 10;
1892
1893 do {
1894 /*
1895 * This will loop only once if everything goes well, else some
1896 * number of retries will be performed to get around a kernel
1897 * bug where available mem is not allocated until after a
1898 * little delay and a retry.
1899 */
1900 ha->request_ring = dma_alloc_coherent(&ha->pdev->dev,
1901 (ha->request_q_length + 1) * sizeof(request_t),
1902 &ha->request_dma, GFP_KERNEL);
1903 if (ha->request_ring == NULL) {
1904 qla_printk(KERN_WARNING, ha,
1905 "Memory Allocation failed - request_ring\n");
1906
1907 qla2x00_mem_free(ha);
1908 msleep(100);
1909
1910 continue;
1911 }
1912
1913 ha->response_ring = dma_alloc_coherent(&ha->pdev->dev,
1914 (ha->response_q_length + 1) * sizeof(response_t),
1915 &ha->response_dma, GFP_KERNEL);
1916 if (ha->response_ring == NULL) {
1917 qla_printk(KERN_WARNING, ha,
1918 "Memory Allocation failed - response_ring\n");
1919
1920 qla2x00_mem_free(ha);
1921 msleep(100);
1922
1923 continue;
1924 }
1925
1926 ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
1927 &ha->gid_list_dma, GFP_KERNEL);
1928 if (ha->gid_list == NULL) {
1929 qla_printk(KERN_WARNING, ha,
1930 "Memory Allocation failed - gid_list\n");
1931
1932 qla2x00_mem_free(ha);
1933 msleep(100);
1934
1935 continue;
1936 }
1937
1938 snprintf(name, sizeof(name), "%s_%ld", QLA2XXX_DRIVER_NAME,
1939 ha->host_no);
1940 ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
1941 DMA_POOL_SIZE, 8, 0);
1942 if (ha->s_dma_pool == NULL) {
1943 qla_printk(KERN_WARNING, ha,
1944 "Memory Allocation failed - s_dma_pool\n");
1945
1946 qla2x00_mem_free(ha);
1947 msleep(100);
1948
1949 continue;
1950 }
1951
1952 /* get consistent memory allocated for init control block */
1953 ha->init_cb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
1954 &ha->init_cb_dma);
1955 if (ha->init_cb == NULL) {
1956 qla_printk(KERN_WARNING, ha,
1957 "Memory Allocation failed - init_cb\n");
1958
1959 qla2x00_mem_free(ha);
1960 msleep(100);
1961
1962 continue;
1963 }
1964 memset(ha->init_cb, 0, ha->init_cb_size);
1965
1966 if (qla2x00_allocate_sp_pool(ha)) {
1967 qla_printk(KERN_WARNING, ha,
1968 "Memory Allocation failed - "
1969 "qla2x00_allocate_sp_pool()\n");
1970
1971 qla2x00_mem_free(ha);
1972 msleep(100);
1973
1974 continue;
1975 }
1976
1977 /* Allocate memory for SNS commands */
1978 if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
1979 /* Get consistent memory allocated for SNS commands */
1980 ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
1981 sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma,
1982 GFP_KERNEL);
1983 if (ha->sns_cmd == NULL) {
1984 /* error */
1985 qla_printk(KERN_WARNING, ha,
1986 "Memory Allocation failed - sns_cmd\n");
1987
1988 qla2x00_mem_free(ha);
1989 msleep(100);
1990
1991 continue;
1992 }
1993 memset(ha->sns_cmd, 0, sizeof(struct sns_cmd_pkt));
1994 } else {
1995 /* Get consistent memory allocated for MS IOCB */
1996 ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
1997 &ha->ms_iocb_dma);
1998 if (ha->ms_iocb == NULL) {
1999 /* error */
2000 qla_printk(KERN_WARNING, ha,
2001 "Memory Allocation failed - ms_iocb\n");
2002
2003 qla2x00_mem_free(ha);
2004 msleep(100);
2005
2006 continue;
2007 }
2008 memset(ha->ms_iocb, 0, sizeof(ms_iocb_entry_t));
2009
2010 /*
2011 * Get consistent memory allocated for CT SNS
2012 * commands
2013 */
2014 ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
2015 sizeof(struct ct_sns_pkt), &ha->ct_sns_dma,
2016 GFP_KERNEL);
2017 if (ha->ct_sns == NULL) {
2018 /* error */
2019 qla_printk(KERN_WARNING, ha,
2020 "Memory Allocation failed - ct_sns\n");
2021
2022 qla2x00_mem_free(ha);
2023 msleep(100);
2024
2025 continue;
2026 }
2027 memset(ha->ct_sns, 0, sizeof(struct ct_sns_pkt));
2028
2029 if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
2030 /*
2031 * Get consistent memory allocated for SFP
2032 * block.
2033 */
2034 ha->sfp_data = dma_pool_alloc(ha->s_dma_pool,
2035 GFP_KERNEL, &ha->sfp_data_dma);
2036 if (ha->sfp_data == NULL) {
2037 qla_printk(KERN_WARNING, ha,
2038 "Memory Allocation failed - "
2039 "sfp_data\n");
2040
2041 qla2x00_mem_free(ha);
2042 msleep(100);
2043
2044 continue;
2045 }
2046 memset(ha->sfp_data, 0, SFP_BLOCK_SIZE);
2047 }
2048 }
2049
2050 /* Done all allocations without any error. */
2051 status = 0;
2052
2053 } while (retry-- && status != 0);
2054
2055 if (status) {
2056 printk(KERN_WARNING
2057 "%s(): **** FAILED ****\n", __func__);
2058 }
2059
2060 return(status);
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 == NULL) {
2077 /* error */
2078 DEBUG2(printk("%s(): ERROR invalid ha pointer.\n", __func__));
2079 return;
2080 }
2081
2082 /* free sp pool */
2083 qla2x00_free_sp_pool(ha);
2084
2085 if (ha->fw_dump) {
2086 if (ha->eft)
2087 dma_free_coherent(&ha->pdev->dev,
2088 ntohl(ha->fw_dump->eft_size), ha->eft, ha->eft_dma);
2089 vfree(ha->fw_dump);
2090 }
2091
2092 if (ha->sns_cmd)
2093 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
2094 ha->sns_cmd, ha->sns_cmd_dma);
2095
2096 if (ha->ct_sns)
2097 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2098 ha->ct_sns, ha->ct_sns_dma);
2099
2100 if (ha->sfp_data)
2101 dma_pool_free(ha->s_dma_pool, ha->sfp_data, ha->sfp_data_dma);
2102
2103 if (ha->ms_iocb)
2104 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2105
2106 if (ha->init_cb)
2107 dma_pool_free(ha->s_dma_pool, ha->init_cb, ha->init_cb_dma);
2108
2109 if (ha->s_dma_pool)
2110 dma_pool_destroy(ha->s_dma_pool);
2111
2112 if (ha->gid_list)
2113 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2114 ha->gid_list_dma);
2115
2116 if (ha->response_ring)
2117 dma_free_coherent(&ha->pdev->dev,
2118 (ha->response_q_length + 1) * sizeof(response_t),
2119 ha->response_ring, ha->response_dma);
2120
2121 if (ha->request_ring)
2122 dma_free_coherent(&ha->pdev->dev,
2123 (ha->request_q_length + 1) * sizeof(request_t),
2124 ha->request_ring, ha->request_dma);
2125
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 }
2162
2163 /*
2164 * qla2x00_allocate_sp_pool
2165 * This routine is called during initialization to allocate
2166 * memory for local srb_t.
2167 *
2168 * Input:
2169 * ha = adapter block pointer.
2170 *
2171 * Context:
2172 * Kernel context.
2173 */
2174 static int
2175 qla2x00_allocate_sp_pool(scsi_qla_host_t *ha)
2176 {
2177 int rval;
2178
2179 rval = QLA_SUCCESS;
2180 ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
2181 if (ha->srb_mempool == NULL) {
2182 qla_printk(KERN_INFO, ha, "Unable to allocate SRB mempool.\n");
2183 rval = QLA_FUNCTION_FAILED;
2184 }
2185 return (rval);
2186 }
2187
2188 /*
2189 * This routine frees all adapter allocated memory.
2190 *
2191 */
2192 static void
2193 qla2x00_free_sp_pool( scsi_qla_host_t *ha)
2194 {
2195 if (ha->srb_mempool) {
2196 mempool_destroy(ha->srb_mempool);
2197 ha->srb_mempool = NULL;
2198 }
2199 }
2200
2201 /**************************************************************************
2202 * qla2x00_do_dpc
2203 * This kernel thread is a task that is schedule by the interrupt handler
2204 * to perform the background processing for interrupts.
2205 *
2206 * Notes:
2207 * This task always run in the context of a kernel thread. It
2208 * is kick-off by the driver's detect code and starts up
2209 * up one per adapter. It immediately goes to sleep and waits for
2210 * some fibre event. When either the interrupt handler or
2211 * the timer routine detects a event it will one of the task
2212 * bits then wake us up.
2213 **************************************************************************/
2214 static int
2215 qla2x00_do_dpc(void *data)
2216 {
2217 scsi_qla_host_t *ha;
2218 fc_port_t *fcport;
2219 uint8_t status;
2220 uint16_t next_loopid;
2221
2222 ha = (scsi_qla_host_t *)data;
2223
2224 set_user_nice(current, -20);
2225
2226 while (!kthread_should_stop()) {
2227 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
2228
2229 set_current_state(TASK_INTERRUPTIBLE);
2230 schedule();
2231 __set_current_state(TASK_RUNNING);
2232
2233 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
2234
2235 /* Initialization not yet finished. Don't do anything yet. */
2236 if (!ha->flags.init_done)
2237 continue;
2238
2239 DEBUG3(printk("scsi(%ld): DPC handler\n", ha->host_no));
2240
2241 ha->dpc_active = 1;
2242
2243 if (ha->flags.mbox_busy) {
2244 ha->dpc_active = 0;
2245 continue;
2246 }
2247
2248 if (test_and_clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) {
2249
2250 DEBUG(printk("scsi(%ld): dpc: sched "
2251 "qla2x00_abort_isp ha = %p\n",
2252 ha->host_no, ha));
2253 if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
2254 &ha->dpc_flags))) {
2255
2256 if (qla2x00_abort_isp(ha)) {
2257 /* failed. retry later */
2258 set_bit(ISP_ABORT_NEEDED,
2259 &ha->dpc_flags);
2260 }
2261 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2262 }
2263 DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
2264 ha->host_no));
2265 }
2266
2267 if (test_and_clear_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags))
2268 qla2x00_update_fcports(ha);
2269
2270 if (test_and_clear_bit(LOOP_RESET_NEEDED, &ha->dpc_flags)) {
2271 DEBUG(printk("scsi(%ld): dpc: sched loop_reset()\n",
2272 ha->host_no));
2273 qla2x00_loop_reset(ha);
2274 }
2275
2276 if (test_and_clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) &&
2277 (!(test_and_set_bit(RESET_ACTIVE, &ha->dpc_flags)))) {
2278
2279 DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
2280 ha->host_no));
2281
2282 qla2x00_rst_aen(ha);
2283 clear_bit(RESET_ACTIVE, &ha->dpc_flags);
2284 }
2285
2286 /* Retry each device up to login retry count */
2287 if ((test_and_clear_bit(RELOGIN_NEEDED, &ha->dpc_flags)) &&
2288 !test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) &&
2289 atomic_read(&ha->loop_state) != LOOP_DOWN) {
2290
2291 DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
2292 ha->host_no));
2293
2294 next_loopid = 0;
2295 list_for_each_entry(fcport, &ha->fcports, list) {
2296 /*
2297 * If the port is not ONLINE then try to login
2298 * to it if we haven't run out of retries.
2299 */
2300 if (atomic_read(&fcport->state) != FCS_ONLINE &&
2301 fcport->login_retry) {
2302
2303 fcport->login_retry--;
2304 if (fcport->flags & FCF_FABRIC_DEVICE) {
2305 if (fcport->flags &
2306 FCF_TAPE_PRESENT)
2307 ha->isp_ops.fabric_logout(
2308 ha, fcport->loop_id,
2309 fcport->d_id.b.domain,
2310 fcport->d_id.b.area,
2311 fcport->d_id.b.al_pa);
2312 status = qla2x00_fabric_login(
2313 ha, fcport, &next_loopid);
2314 } else
2315 status =
2316 qla2x00_local_device_login(
2317 ha, fcport);
2318
2319 if (status == QLA_SUCCESS) {
2320 fcport->old_loop_id = fcport->loop_id;
2321
2322 DEBUG(printk("scsi(%ld): port login OK: logged in ID 0x%x\n",
2323 ha->host_no, fcport->loop_id));
2324
2325 qla2x00_update_fcport(ha,
2326 fcport);
2327 } else if (status == 1) {
2328 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
2329 /* retry the login again */
2330 DEBUG(printk("scsi(%ld): Retrying %d login again loop_id 0x%x\n",
2331 ha->host_no,
2332 fcport->login_retry, fcport->loop_id));
2333 } else {
2334 fcport->login_retry = 0;
2335 }
2336 }
2337 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2338 break;
2339 }
2340 DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
2341 ha->host_no));
2342 }
2343
2344 if ((test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags)) &&
2345 atomic_read(&ha->loop_state) != LOOP_DOWN) {
2346
2347 clear_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags);
2348 DEBUG(printk("scsi(%ld): qla2x00_login_retry()\n",
2349 ha->host_no));
2350
2351 set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
2352
2353 DEBUG(printk("scsi(%ld): qla2x00_login_retry - end\n",
2354 ha->host_no));
2355 }
2356
2357 if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
2358
2359 DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
2360 ha->host_no));
2361
2362 if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
2363 &ha->dpc_flags))) {
2364
2365 qla2x00_loop_resync(ha);
2366
2367 clear_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags);
2368 }
2369
2370 DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
2371 ha->host_no));
2372 }
2373
2374 if (test_and_clear_bit(FCPORT_RESCAN_NEEDED, &ha->dpc_flags)) {
2375
2376 DEBUG(printk("scsi(%ld): Rescan flagged fcports...\n",
2377 ha->host_no));
2378
2379 qla2x00_rescan_fcports(ha);
2380
2381 DEBUG(printk("scsi(%ld): Rescan flagged fcports..."
2382 "end.\n",
2383 ha->host_no));
2384 }
2385
2386 if (!ha->interrupts_on)
2387 ha->isp_ops.enable_intrs(ha);
2388
2389 if (test_and_clear_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags))
2390 ha->isp_ops.beacon_blink(ha);
2391
2392 ha->dpc_active = 0;
2393 } /* End of while(1) */
2394
2395 DEBUG(printk("scsi(%ld): DPC handler exiting\n", ha->host_no));
2396
2397 /*
2398 * Make sure that nobody tries to wake us up again.
2399 */
2400 ha->dpc_active = 0;
2401
2402 return 0;
2403 }
2404
2405 void
2406 qla2xxx_wake_dpc(scsi_qla_host_t *ha)
2407 {
2408 if (ha->dpc_thread)
2409 wake_up_process(ha->dpc_thread);
2410 }
2411
2412 /*
2413 * qla2x00_rst_aen
2414 * Processes asynchronous reset.
2415 *
2416 * Input:
2417 * ha = adapter block pointer.
2418 */
2419 static void
2420 qla2x00_rst_aen(scsi_qla_host_t *ha)
2421 {
2422 if (ha->flags.online && !ha->flags.reset_active &&
2423 !atomic_read(&ha->loop_down_timer) &&
2424 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) {
2425 do {
2426 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
2427
2428 /*
2429 * Issue marker command only when we are going to start
2430 * the I/O.
2431 */
2432 ha->marker_needed = 1;
2433 } while (!atomic_read(&ha->loop_down_timer) &&
2434 (test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags)));
2435 }
2436 }
2437
2438 static void
2439 qla2x00_sp_free_dma(scsi_qla_host_t *ha, srb_t *sp)
2440 {
2441 struct scsi_cmnd *cmd = sp->cmd;
2442
2443 if (sp->flags & SRB_DMA_VALID) {
2444 if (cmd->use_sg) {
2445 dma_unmap_sg(&ha->pdev->dev, cmd->request_buffer,
2446 cmd->use_sg, cmd->sc_data_direction);
2447 } else if (cmd->request_bufflen) {
2448 dma_unmap_single(&ha->pdev->dev, sp->dma_handle,
2449 cmd->request_bufflen, cmd->sc_data_direction);
2450 }
2451 sp->flags &= ~SRB_DMA_VALID;
2452 }
2453 CMD_SP(cmd) = NULL;
2454 }
2455
2456 void
2457 qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *sp)
2458 {
2459 struct scsi_cmnd *cmd = sp->cmd;
2460
2461 qla2x00_sp_free_dma(ha, sp);
2462
2463 mempool_free(sp, ha->srb_mempool);
2464
2465 cmd->scsi_done(cmd);
2466 }
2467
2468 /**************************************************************************
2469 * qla2x00_timer
2470 *
2471 * Description:
2472 * One second timer
2473 *
2474 * Context: Interrupt
2475 ***************************************************************************/
2476 static void
2477 qla2x00_timer(scsi_qla_host_t *ha)
2478 {
2479 unsigned long cpu_flags = 0;
2480 fc_port_t *fcport;
2481 int start_dpc = 0;
2482 int index;
2483 srb_t *sp;
2484 int t;
2485
2486 /*
2487 * Ports - Port down timer.
2488 *
2489 * Whenever, a port is in the LOST state we start decrementing its port
2490 * down timer every second until it reaches zero. Once it reaches zero
2491 * the port it marked DEAD.
2492 */
2493 t = 0;
2494 list_for_each_entry(fcport, &ha->fcports, list) {
2495 if (fcport->port_type != FCT_TARGET)
2496 continue;
2497
2498 if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
2499
2500 if (atomic_read(&fcport->port_down_timer) == 0)
2501 continue;
2502
2503 if (atomic_dec_and_test(&fcport->port_down_timer) != 0)
2504 atomic_set(&fcport->state, FCS_DEVICE_DEAD);
2505
2506 DEBUG(printk("scsi(%ld): fcport-%d - port retry count: "
2507 "%d remaining\n",
2508 ha->host_no,
2509 t, atomic_read(&fcport->port_down_timer)));
2510 }
2511 t++;
2512 } /* End of for fcport */
2513
2514
2515 /* Loop down handler. */
2516 if (atomic_read(&ha->loop_down_timer) > 0 &&
2517 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags)) && ha->flags.online) {
2518
2519 if (atomic_read(&ha->loop_down_timer) ==
2520 ha->loop_down_abort_time) {
2521
2522 DEBUG(printk("scsi(%ld): Loop Down - aborting the "
2523 "queues before time expire\n",
2524 ha->host_no));
2525
2526 if (!IS_QLA2100(ha) && ha->link_down_timeout)
2527 atomic_set(&ha->loop_state, LOOP_DEAD);
2528
2529 /* Schedule an ISP abort to return any tape commands. */
2530 spin_lock_irqsave(&ha->hardware_lock, cpu_flags);
2531 for (index = 1; index < MAX_OUTSTANDING_COMMANDS;
2532 index++) {
2533 fc_port_t *sfcp;
2534
2535 sp = ha->outstanding_cmds[index];
2536 if (!sp)
2537 continue;
2538 sfcp = sp->fcport;
2539 if (!(sfcp->flags & FCF_TAPE_PRESENT))
2540 continue;
2541
2542 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2543 break;
2544 }
2545 spin_unlock_irqrestore(&ha->hardware_lock, cpu_flags);
2546
2547 set_bit(ABORT_QUEUES_NEEDED, &ha->dpc_flags);
2548 start_dpc++;
2549 }
2550
2551 /* if the loop has been down for 4 minutes, reinit adapter */
2552 if (atomic_dec_and_test(&ha->loop_down_timer) != 0) {
2553 DEBUG(printk("scsi(%ld): Loop down exceed 4 mins - "
2554 "restarting queues.\n",
2555 ha->host_no));
2556
2557 set_bit(RESTART_QUEUES_NEEDED, &ha->dpc_flags);
2558 start_dpc++;
2559
2560 if (!(ha->device_flags & DFLG_NO_CABLE)) {
2561 DEBUG(printk("scsi(%ld): Loop down - "
2562 "aborting ISP.\n",
2563 ha->host_no));
2564 qla_printk(KERN_WARNING, ha,
2565 "Loop down - aborting ISP.\n");
2566
2567 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2568 }
2569 }
2570 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
2571 ha->host_no,
2572 atomic_read(&ha->loop_down_timer)));
2573 }
2574
2575 /* Check if beacon LED needs to be blinked */
2576 if (ha->beacon_blink_led == 1) {
2577 set_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags);
2578 start_dpc++;
2579 }
2580
2581 /* Schedule the DPC routine if needed */
2582 if ((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags) ||
2583 test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) ||
2584 test_bit(LOOP_RESET_NEEDED, &ha->dpc_flags) ||
2585 test_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags) ||
2586 start_dpc ||
2587 test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags) ||
2588 test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) ||
2589 test_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags) ||
2590 test_bit(RELOGIN_NEEDED, &ha->dpc_flags)))
2591 qla2xxx_wake_dpc(ha);
2592
2593 qla2x00_restart_timer(ha, WATCH_INTERVAL);
2594 }
2595
2596 /* XXX(hch): crude hack to emulate a down_timeout() */
2597 int
2598 qla2x00_down_timeout(struct semaphore *sema, unsigned long timeout)
2599 {
2600 const unsigned int step = 100; /* msecs */
2601 unsigned int iterations = jiffies_to_msecs(timeout)/100;
2602
2603 do {
2604 if (!down_trylock(sema))
2605 return 0;
2606 if (msleep_interruptible(step))
2607 break;
2608 } while (--iterations >= 0);
2609
2610 return -ETIMEDOUT;
2611 }
2612
2613 /* Firmware interface routines. */
2614
2615 #define FW_BLOBS 5
2616 #define FW_ISP21XX 0
2617 #define FW_ISP22XX 1
2618 #define FW_ISP2300 2
2619 #define FW_ISP2322 3
2620 #define FW_ISP24XX 4
2621
2622 #define FW_FILE_ISP21XX "ql2100_fw.bin"
2623 #define FW_FILE_ISP22XX "ql2200_fw.bin"
2624 #define FW_FILE_ISP2300 "ql2300_fw.bin"
2625 #define FW_FILE_ISP2322 "ql2322_fw.bin"
2626 #define FW_FILE_ISP24XX "ql2400_fw.bin"
2627
2628 static DECLARE_MUTEX(qla_fw_lock);
2629
2630 static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
2631 { .name = FW_FILE_ISP21XX, .segs = { 0x1000, 0 }, },
2632 { .name = FW_FILE_ISP22XX, .segs = { 0x1000, 0 }, },
2633 { .name = FW_FILE_ISP2300, .segs = { 0x800, 0 }, },
2634 { .name = FW_FILE_ISP2322, .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
2635 { .name = FW_FILE_ISP24XX, },
2636 };
2637
2638 struct fw_blob *
2639 qla2x00_request_firmware(scsi_qla_host_t *ha)
2640 {
2641 struct fw_blob *blob;
2642
2643 blob = NULL;
2644 if (IS_QLA2100(ha)) {
2645 blob = &qla_fw_blobs[FW_ISP21XX];
2646 } else if (IS_QLA2200(ha)) {
2647 blob = &qla_fw_blobs[FW_ISP22XX];
2648 } else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
2649 blob = &qla_fw_blobs[FW_ISP2300];
2650 } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
2651 blob = &qla_fw_blobs[FW_ISP2322];
2652 } else if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
2653 blob = &qla_fw_blobs[FW_ISP24XX];
2654 }
2655
2656 down(&qla_fw_lock);
2657 if (blob->fw)
2658 goto out;
2659
2660 if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
2661 DEBUG2(printk("scsi(%ld): Failed to load firmware image "
2662 "(%s).\n", ha->host_no, blob->name));
2663 blob->fw = NULL;
2664 blob = NULL;
2665 goto out;
2666 }
2667
2668 out:
2669 up(&qla_fw_lock);
2670 return blob;
2671 }
2672
2673 static void
2674 qla2x00_release_firmware(void)
2675 {
2676 int idx;
2677
2678 down(&qla_fw_lock);
2679 for (idx = 0; idx < FW_BLOBS; idx++)
2680 if (qla_fw_blobs[idx].fw)
2681 release_firmware(qla_fw_blobs[idx].fw);
2682 up(&qla_fw_lock);
2683 }
2684
2685 static struct pci_device_id qla2xxx_pci_tbl[] = {
2686 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
2687 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
2688 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
2689 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
2690 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
2691 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
2692 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
2693 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
2694 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
2695 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
2696 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
2697 { 0 },
2698 };
2699 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
2700
2701 static struct pci_driver qla2xxx_pci_driver = {
2702 .name = QLA2XXX_DRIVER_NAME,
2703 .driver = {
2704 .owner = THIS_MODULE,
2705 },
2706 .id_table = qla2xxx_pci_tbl,
2707 .probe = qla2x00_probe_one,
2708 .remove = __devexit_p(qla2x00_remove_one),
2709 };
2710
2711 /**
2712 * qla2x00_module_init - Module initialization.
2713 **/
2714 static int __init
2715 qla2x00_module_init(void)
2716 {
2717 int ret = 0;
2718
2719 /* Allocate cache for SRBs. */
2720 srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
2721 SLAB_HWCACHE_ALIGN, NULL, NULL);
2722 if (srb_cachep == NULL) {
2723 printk(KERN_ERR
2724 "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
2725 return -ENOMEM;
2726 }
2727
2728 /* Derive version string. */
2729 strcpy(qla2x00_version_str, QLA2XXX_VERSION);
2730 if (ql2xextended_error_logging)
2731 strcat(qla2x00_version_str, "-debug");
2732
2733 qla2xxx_transport_template =
2734 fc_attach_transport(&qla2xxx_transport_functions);
2735 if (!qla2xxx_transport_template)
2736 return -ENODEV;
2737
2738 printk(KERN_INFO "QLogic Fibre Channel HBA Driver\n");
2739 ret = pci_register_driver(&qla2xxx_pci_driver);
2740 if (ret) {
2741 kmem_cache_destroy(srb_cachep);
2742 fc_release_transport(qla2xxx_transport_template);
2743 }
2744 return ret;
2745 }
2746
2747 /**
2748 * qla2x00_module_exit - Module cleanup.
2749 **/
2750 static void __exit
2751 qla2x00_module_exit(void)
2752 {
2753 pci_unregister_driver(&qla2xxx_pci_driver);
2754 qla2x00_release_firmware();
2755 kmem_cache_destroy(srb_cachep);
2756 fc_release_transport(qla2xxx_transport_template);
2757 }
2758
2759 module_init(qla2x00_module_init);
2760 module_exit(qla2x00_module_exit);
2761
2762 MODULE_AUTHOR("QLogic Corporation");
2763 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
2764 MODULE_LICENSE("GPL");
2765 MODULE_VERSION(QLA2XXX_VERSION);
2766 MODULE_FIRMWARE(FW_FILE_ISP21XX);
2767 MODULE_FIRMWARE(FW_FILE_ISP22XX);
2768 MODULE_FIRMWARE(FW_FILE_ISP2300);
2769 MODULE_FIRMWARE(FW_FILE_ISP2322);
2770 MODULE_FIRMWARE(FW_FILE_ISP24XX);
Linux kernel - Deliverables
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