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[SCSI] qla2xxx: Remove unnecessary spinlock primitive - mbx_reg_lock.
[linux-2.6/kvm.git] / drivers / scsi / qla2xxx / qla_os.c
blob6f161d3f661b3a332156d8350316fe7d622d4b59
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 status = QLA_SUCCESS;
1041 struct fc_port *fcport;
1042
1043 if (ha->flags.enable_lip_reset) {
1044 status = qla2x00_lip_reset(ha);
1045 }
1046
1047 if (status == QLA_SUCCESS && ha->flags.enable_target_reset) {
1048 list_for_each_entry(fcport, &ha->fcports, list) {
1049 if (fcport->port_type != FCT_TARGET)
1050 continue;
1051
1052 status = qla2x00_device_reset(ha, fcport);
1053 if (status != QLA_SUCCESS)
1054 break;
1055 }
1056 }
1057
1058 if (status == QLA_SUCCESS &&
1059 ((!ha->flags.enable_target_reset &&
1060 !ha->flags.enable_lip_reset) ||
1061 ha->flags.enable_lip_full_login)) {
1062
1063 status = qla2x00_full_login_lip(ha);
1064 }
1065
1066 /* Issue marker command only when we are going to start the I/O */
1067 ha->marker_needed = 1;
1068
1069 if (status) {
1070 /* Empty */
1071 DEBUG2_3(printk("%s(%ld): **** FAILED ****\n",
1072 __func__,
1073 ha->host_no));
1074 } else {
1075 /* Empty */
1076 DEBUG3(printk("%s(%ld): exiting normally.\n",
1077 __func__,
1078 ha->host_no));
1079 }
1080
1081 return(status);
1082 }
1083
1084 /*
1085 * qla2x00_device_reset
1086 * Issue bus device reset message to the target.
1087 *
1088 * Input:
1089 * ha = adapter block pointer.
1090 * t = SCSI ID.
1091 * TARGET_QUEUE_LOCK must be released.
1092 * ADAPTER_STATE_LOCK must be released.
1093 *
1094 * Context:
1095 * Kernel context.
1096 */
1097 static int
1098 qla2x00_device_reset(scsi_qla_host_t *ha, fc_port_t *reset_fcport)
1099 {
1100 /* Abort Target command will clear Reservation */
1101 return ha->isp_ops.abort_target(reset_fcport);
1102 }
1103
1104 static int
1105 qla2xxx_slave_alloc(struct scsi_device *sdev)
1106 {
1107 struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1108
1109 if (!rport || fc_remote_port_chkready(rport))
1110 return -ENXIO;
1111
1112 sdev->hostdata = *(fc_port_t **)rport->dd_data;
1113
1114 return 0;
1115 }
1116
1117 static int
1118 qla2xxx_slave_configure(struct scsi_device *sdev)
1119 {
1120 scsi_qla_host_t *ha = to_qla_host(sdev->host);
1121 struct fc_rport *rport = starget_to_rport(sdev->sdev_target);
1122
1123 if (sdev->tagged_supported)
1124 scsi_activate_tcq(sdev, ha->max_q_depth);
1125 else
1126 scsi_deactivate_tcq(sdev, ha->max_q_depth);
1127
1128 rport->dev_loss_tmo = ha->port_down_retry_count + 5;
1129
1130 return 0;
1131 }
1132
1133 static void
1134 qla2xxx_slave_destroy(struct scsi_device *sdev)
1135 {
1136 sdev->hostdata = NULL;
1137 }
1138
1139 static int
1140 qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth)
1141 {
1142 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1143 return sdev->queue_depth;
1144 }
1145
1146 static int
1147 qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1148 {
1149 if (sdev->tagged_supported) {
1150 scsi_set_tag_type(sdev, tag_type);
1151 if (tag_type)
1152 scsi_activate_tcq(sdev, sdev->queue_depth);
1153 else
1154 scsi_deactivate_tcq(sdev, sdev->queue_depth);
1155 } else
1156 tag_type = 0;
1157
1158 return tag_type;
1159 }
1160
1161 /**
1162 * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1163 * @ha: HA context
1164 *
1165 * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1166 * supported addressing method.
1167 */
1168 static void
1169 qla2x00_config_dma_addressing(scsi_qla_host_t *ha)
1170 {
1171 /* Assume a 32bit DMA mask. */
1172 ha->flags.enable_64bit_addressing = 0;
1173
1174 if (!dma_set_mask(&ha->pdev->dev, DMA_64BIT_MASK)) {
1175 /* Any upper-dword bits set? */
1176 if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1177 !pci_set_consistent_dma_mask(ha->pdev, DMA_64BIT_MASK)) {
1178 /* Ok, a 64bit DMA mask is applicable. */
1179 ha->flags.enable_64bit_addressing = 1;
1180 ha->isp_ops.calc_req_entries = qla2x00_calc_iocbs_64;
1181 ha->isp_ops.build_iocbs = qla2x00_build_scsi_iocbs_64;
1182 return;
1183 }
1184 }
1185
1186 dma_set_mask(&ha->pdev->dev, DMA_32BIT_MASK);
1187 pci_set_consistent_dma_mask(ha->pdev, DMA_32BIT_MASK);
1188 }
1189
1190 static inline void
1191 qla2x00_set_isp_flags(scsi_qla_host_t *ha)
1192 {
1193 ha->device_type = DT_EXTENDED_IDS;
1194 switch (ha->pdev->device) {
1195 case PCI_DEVICE_ID_QLOGIC_ISP2100:
1196 ha->device_type |= DT_ISP2100;
1197 ha->device_type &= ~DT_EXTENDED_IDS;
1198 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1199 break;
1200 case PCI_DEVICE_ID_QLOGIC_ISP2200:
1201 ha->device_type |= DT_ISP2200;
1202 ha->device_type &= ~DT_EXTENDED_IDS;
1203 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1204 break;
1205 case PCI_DEVICE_ID_QLOGIC_ISP2300:
1206 ha->device_type |= DT_ISP2300;
1207 ha->device_type |= DT_ZIO_SUPPORTED;
1208 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1209 break;
1210 case PCI_DEVICE_ID_QLOGIC_ISP2312:
1211 ha->device_type |= DT_ISP2312;
1212 ha->device_type |= DT_ZIO_SUPPORTED;
1213 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1214 break;
1215 case PCI_DEVICE_ID_QLOGIC_ISP2322:
1216 ha->device_type |= DT_ISP2322;
1217 ha->device_type |= DT_ZIO_SUPPORTED;
1218 if (ha->pdev->subsystem_vendor == 0x1028 &&
1219 ha->pdev->subsystem_device == 0x0170)
1220 ha->device_type |= DT_OEM_001;
1221 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1222 break;
1223 case PCI_DEVICE_ID_QLOGIC_ISP6312:
1224 ha->device_type |= DT_ISP6312;
1225 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1226 break;
1227 case PCI_DEVICE_ID_QLOGIC_ISP6322:
1228 ha->device_type |= DT_ISP6322;
1229 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1230 break;
1231 case PCI_DEVICE_ID_QLOGIC_ISP2422:
1232 ha->device_type |= DT_ISP2422;
1233 ha->device_type |= DT_ZIO_SUPPORTED;
1234 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1235 break;
1236 case PCI_DEVICE_ID_QLOGIC_ISP2432:
1237 ha->device_type |= DT_ISP2432;
1238 ha->device_type |= DT_ZIO_SUPPORTED;
1239 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1240 break;
1241 case PCI_DEVICE_ID_QLOGIC_ISP5422:
1242 ha->device_type |= DT_ISP5422;
1243 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1244 break;
1245 case PCI_DEVICE_ID_QLOGIC_ISP5432:
1246 ha->device_type |= DT_ISP5432;
1247 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1248 break;
1249 }
1250 }
1251
1252 static int
1253 qla2x00_iospace_config(scsi_qla_host_t *ha)
1254 {
1255 unsigned long pio, pio_len, pio_flags;
1256 unsigned long mmio, mmio_len, mmio_flags;
1257
1258 /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1259 pio = pci_resource_start(ha->pdev, 0);
1260 pio_len = pci_resource_len(ha->pdev, 0);
1261 pio_flags = pci_resource_flags(ha->pdev, 0);
1262 if (pio_flags & IORESOURCE_IO) {
1263 if (pio_len < MIN_IOBASE_LEN) {
1264 qla_printk(KERN_WARNING, ha,
1265 "Invalid PCI I/O region size (%s)...\n",
1266 pci_name(ha->pdev));
1267 pio = 0;
1268 }
1269 } else {
1270 qla_printk(KERN_WARNING, ha,
1271 "region #0 not a PIO resource (%s)...\n",
1272 pci_name(ha->pdev));
1273 pio = 0;
1274 }
1275
1276 /* Use MMIO operations for all accesses. */
1277 mmio = pci_resource_start(ha->pdev, 1);
1278 mmio_len = pci_resource_len(ha->pdev, 1);
1279 mmio_flags = pci_resource_flags(ha->pdev, 1);
1280
1281 if (!(mmio_flags & IORESOURCE_MEM)) {
1282 qla_printk(KERN_ERR, ha,
1283 "region #0 not an MMIO resource (%s), aborting\n",
1284 pci_name(ha->pdev));
1285 goto iospace_error_exit;
1286 }
1287 if (mmio_len < MIN_IOBASE_LEN) {
1288 qla_printk(KERN_ERR, ha,
1289 "Invalid PCI mem region size (%s), aborting\n",
1290 pci_name(ha->pdev));
1291 goto iospace_error_exit;
1292 }
1293
1294 if (pci_request_regions(ha->pdev, QLA2XXX_DRIVER_NAME)) {
1295 qla_printk(KERN_WARNING, ha,
1296 "Failed to reserve PIO/MMIO regions (%s)\n",
1297 pci_name(ha->pdev));
1298
1299 goto iospace_error_exit;
1300 }
1301
1302 ha->pio_address = pio;
1303 ha->pio_length = pio_len;
1304 ha->iobase = ioremap(mmio, MIN_IOBASE_LEN);
1305 if (!ha->iobase) {
1306 qla_printk(KERN_ERR, ha,
1307 "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
1308
1309 goto iospace_error_exit;
1310 }
1311
1312 return (0);
1313
1314 iospace_error_exit:
1315 return (-ENOMEM);
1316 }
1317
1318 static void
1319 qla2x00_enable_intrs(scsi_qla_host_t *ha)
1320 {
1321 unsigned long flags = 0;
1322 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1323
1324 spin_lock_irqsave(&ha->hardware_lock, flags);
1325 ha->interrupts_on = 1;
1326 /* enable risc and host interrupts */
1327 WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1328 RD_REG_WORD(&reg->ictrl);
1329 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1330
1331 }
1332
1333 static void
1334 qla2x00_disable_intrs(scsi_qla_host_t *ha)
1335 {
1336 unsigned long flags = 0;
1337 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1338
1339 spin_lock_irqsave(&ha->hardware_lock, flags);
1340 ha->interrupts_on = 0;
1341 /* disable risc and host interrupts */
1342 WRT_REG_WORD(&reg->ictrl, 0);
1343 RD_REG_WORD(&reg->ictrl);
1344 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1345 }
1346
1347 static void
1348 qla24xx_enable_intrs(scsi_qla_host_t *ha)
1349 {
1350 unsigned long flags = 0;
1351 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1352
1353 spin_lock_irqsave(&ha->hardware_lock, flags);
1354 ha->interrupts_on = 1;
1355 WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1356 RD_REG_DWORD(&reg->ictrl);
1357 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1358 }
1359
1360 static void
1361 qla24xx_disable_intrs(scsi_qla_host_t *ha)
1362 {
1363 unsigned long flags = 0;
1364 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1365
1366 spin_lock_irqsave(&ha->hardware_lock, flags);
1367 ha->interrupts_on = 0;
1368 WRT_REG_DWORD(&reg->ictrl, 0);
1369 RD_REG_DWORD(&reg->ictrl);
1370 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1371 }
1372
1373 static void
1374 qla2xxx_scan_start(struct Scsi_Host *shost)
1375 {
1376 scsi_qla_host_t *ha = (scsi_qla_host_t *)shost->hostdata;
1377
1378 set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
1379 set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
1380 set_bit(RSCN_UPDATE, &ha->dpc_flags);
1381 }
1382
1383 static int
1384 qla2xxx_scan_finished(struct Scsi_Host *shost, unsigned long time)
1385 {
1386 scsi_qla_host_t *ha = (scsi_qla_host_t *)shost->hostdata;
1387
1388 if (!ha->host)
1389 return 1;
1390 if (time > ha->loop_reset_delay * HZ)
1391 return 1;
1392
1393 return atomic_read(&ha->loop_state) == LOOP_READY;
1394 }
1395
1396 /*
1397 * PCI driver interface
1398 */
1399 static int __devinit
1400 qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
1401 {
1402 int ret = -ENODEV;
1403 device_reg_t __iomem *reg;
1404 struct Scsi_Host *host;
1405 scsi_qla_host_t *ha;
1406 unsigned long flags = 0;
1407 char pci_info[20];
1408 char fw_str[30];
1409 struct scsi_host_template *sht;
1410
1411 if (pci_enable_device(pdev))
1412 goto probe_out;
1413
1414 sht = &qla2x00_driver_template;
1415 if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
1416 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432)
1417 sht = &qla24xx_driver_template;
1418 host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
1419 if (host == NULL) {
1420 printk(KERN_WARNING
1421 "qla2xxx: Couldn't allocate host from scsi layer!\n");
1422 goto probe_disable_device;
1423 }
1424
1425 /* Clear our data area */
1426 ha = (scsi_qla_host_t *)host->hostdata;
1427 memset(ha, 0, sizeof(scsi_qla_host_t));
1428
1429 ha->pdev = pdev;
1430 ha->host = host;
1431 ha->host_no = host->host_no;
1432 sprintf(ha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, ha->host_no);
1433
1434 /* Set ISP-type information. */
1435 qla2x00_set_isp_flags(ha);
1436
1437 /* Configure PCI I/O space */
1438 ret = qla2x00_iospace_config(ha);
1439 if (ret)
1440 goto probe_failed;
1441
1442 qla_printk(KERN_INFO, ha,
1443 "Found an ISP%04X, irq %d, iobase 0x%p\n", pdev->device, pdev->irq,
1444 ha->iobase);
1445
1446 spin_lock_init(&ha->hardware_lock);
1447
1448 ha->prev_topology = 0;
1449 ha->init_cb_size = sizeof(init_cb_t);
1450 ha->mgmt_svr_loop_id = MANAGEMENT_SERVER;
1451 ha->link_data_rate = PORT_SPEED_UNKNOWN;
1452 ha->optrom_size = OPTROM_SIZE_2300;
1453
1454 ha->max_q_depth = MAX_Q_DEPTH;
1455 if (ql2xmaxqdepth != 0 && ql2xmaxqdepth <= 0xffffU)
1456 ha->max_q_depth = ql2xmaxqdepth;
1457
1458 /* Assign ISP specific operations. */
1459 ha->isp_ops.pci_config = qla2100_pci_config;
1460 ha->isp_ops.reset_chip = qla2x00_reset_chip;
1461 ha->isp_ops.chip_diag = qla2x00_chip_diag;
1462 ha->isp_ops.config_rings = qla2x00_config_rings;
1463 ha->isp_ops.reset_adapter = qla2x00_reset_adapter;
1464 ha->isp_ops.nvram_config = qla2x00_nvram_config;
1465 ha->isp_ops.update_fw_options = qla2x00_update_fw_options;
1466 ha->isp_ops.load_risc = qla2x00_load_risc;
1467 ha->isp_ops.pci_info_str = qla2x00_pci_info_str;
1468 ha->isp_ops.fw_version_str = qla2x00_fw_version_str;
1469 ha->isp_ops.intr_handler = qla2100_intr_handler;
1470 ha->isp_ops.enable_intrs = qla2x00_enable_intrs;
1471 ha->isp_ops.disable_intrs = qla2x00_disable_intrs;
1472 ha->isp_ops.abort_command = qla2x00_abort_command;
1473 ha->isp_ops.abort_target = qla2x00_abort_target;
1474 ha->isp_ops.fabric_login = qla2x00_login_fabric;
1475 ha->isp_ops.fabric_logout = qla2x00_fabric_logout;
1476 ha->isp_ops.calc_req_entries = qla2x00_calc_iocbs_32;
1477 ha->isp_ops.build_iocbs = qla2x00_build_scsi_iocbs_32;
1478 ha->isp_ops.prep_ms_iocb = qla2x00_prep_ms_iocb;
1479 ha->isp_ops.prep_ms_fdmi_iocb = qla2x00_prep_ms_fdmi_iocb;
1480 ha->isp_ops.read_nvram = qla2x00_read_nvram_data;
1481 ha->isp_ops.write_nvram = qla2x00_write_nvram_data;
1482 ha->isp_ops.fw_dump = qla2100_fw_dump;
1483 ha->isp_ops.read_optrom = qla2x00_read_optrom_data;
1484 ha->isp_ops.write_optrom = qla2x00_write_optrom_data;
1485 ha->isp_ops.get_flash_version = qla2x00_get_flash_version;
1486 if (IS_QLA2100(ha)) {
1487 host->max_id = MAX_TARGETS_2100;
1488 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
1489 ha->request_q_length = REQUEST_ENTRY_CNT_2100;
1490 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1491 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1492 host->sg_tablesize = 32;
1493 ha->gid_list_info_size = 4;
1494 } else if (IS_QLA2200(ha)) {
1495 host->max_id = MAX_TARGETS_2200;
1496 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1497 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1498 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1499 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1500 ha->gid_list_info_size = 4;
1501 } else if (IS_QLA23XX(ha)) {
1502 host->max_id = MAX_TARGETS_2200;
1503 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1504 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1505 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1506 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1507 ha->isp_ops.pci_config = qla2300_pci_config;
1508 ha->isp_ops.intr_handler = qla2300_intr_handler;
1509 ha->isp_ops.fw_dump = qla2300_fw_dump;
1510 ha->isp_ops.beacon_on = qla2x00_beacon_on;
1511 ha->isp_ops.beacon_off = qla2x00_beacon_off;
1512 ha->isp_ops.beacon_blink = qla2x00_beacon_blink;
1513 ha->gid_list_info_size = 6;
1514 if (IS_QLA2322(ha) || IS_QLA6322(ha))
1515 ha->optrom_size = OPTROM_SIZE_2322;
1516 } else if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
1517 host->max_id = MAX_TARGETS_2200;
1518 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1519 ha->request_q_length = REQUEST_ENTRY_CNT_24XX;
1520 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1521 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1522 ha->init_cb_size = sizeof(struct init_cb_24xx);
1523 ha->mgmt_svr_loop_id = 10;
1524 ha->isp_ops.pci_config = qla24xx_pci_config;
1525 ha->isp_ops.reset_chip = qla24xx_reset_chip;
1526 ha->isp_ops.chip_diag = qla24xx_chip_diag;
1527 ha->isp_ops.config_rings = qla24xx_config_rings;
1528 ha->isp_ops.reset_adapter = qla24xx_reset_adapter;
1529 ha->isp_ops.nvram_config = qla24xx_nvram_config;
1530 ha->isp_ops.update_fw_options = qla24xx_update_fw_options;
1531 ha->isp_ops.load_risc = qla24xx_load_risc;
1532 ha->isp_ops.pci_info_str = qla24xx_pci_info_str;
1533 ha->isp_ops.fw_version_str = qla24xx_fw_version_str;
1534 ha->isp_ops.intr_handler = qla24xx_intr_handler;
1535 ha->isp_ops.enable_intrs = qla24xx_enable_intrs;
1536 ha->isp_ops.disable_intrs = qla24xx_disable_intrs;
1537 ha->isp_ops.abort_command = qla24xx_abort_command;
1538 ha->isp_ops.abort_target = qla24xx_abort_target;
1539 ha->isp_ops.fabric_login = qla24xx_login_fabric;
1540 ha->isp_ops.fabric_logout = qla24xx_fabric_logout;
1541 ha->isp_ops.prep_ms_iocb = qla24xx_prep_ms_iocb;
1542 ha->isp_ops.prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb;
1543 ha->isp_ops.read_nvram = qla24xx_read_nvram_data;
1544 ha->isp_ops.write_nvram = qla24xx_write_nvram_data;
1545 ha->isp_ops.fw_dump = qla24xx_fw_dump;
1546 ha->isp_ops.read_optrom = qla24xx_read_optrom_data;
1547 ha->isp_ops.write_optrom = qla24xx_write_optrom_data;
1548 ha->isp_ops.beacon_on = qla24xx_beacon_on;
1549 ha->isp_ops.beacon_off = qla24xx_beacon_off;
1550 ha->isp_ops.beacon_blink = qla24xx_beacon_blink;
1551 ha->isp_ops.get_flash_version = qla24xx_get_flash_version;
1552 ha->gid_list_info_size = 8;
1553 ha->optrom_size = OPTROM_SIZE_24XX;
1554 }
1555 host->can_queue = ha->request_q_length + 128;
1556
1557 /* load the F/W, read paramaters, and init the H/W */
1558 ha->instance = num_hosts;
1559
1560 init_MUTEX(&ha->mbx_cmd_sem);
1561 init_MUTEX_LOCKED(&ha->mbx_intr_sem);
1562
1563 INIT_LIST_HEAD(&ha->list);
1564 INIT_LIST_HEAD(&ha->fcports);
1565
1566 qla2x00_config_dma_addressing(ha);
1567 if (qla2x00_mem_alloc(ha)) {
1568 qla_printk(KERN_WARNING, ha,
1569 "[ERROR] Failed to allocate memory for adapter\n");
1570
1571 ret = -ENOMEM;
1572 goto probe_failed;
1573 }
1574
1575 if (qla2x00_initialize_adapter(ha) &&
1576 !(ha->device_flags & DFLG_NO_CABLE)) {
1577
1578 qla_printk(KERN_WARNING, ha,
1579 "Failed to initialize adapter\n");
1580
1581 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
1582 "Adapter flags %x.\n",
1583 ha->host_no, ha->device_flags));
1584
1585 ret = -ENODEV;
1586 goto probe_failed;
1587 }
1588
1589 /*
1590 * Startup the kernel thread for this host adapter
1591 */
1592 ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
1593 "%s_dpc", ha->host_str);
1594 if (IS_ERR(ha->dpc_thread)) {
1595 qla_printk(KERN_WARNING, ha,
1596 "Unable to start DPC thread!\n");
1597 ret = PTR_ERR(ha->dpc_thread);
1598 goto probe_failed;
1599 }
1600
1601 host->this_id = 255;
1602 host->cmd_per_lun = 3;
1603 host->unique_id = ha->instance;
1604 host->max_cmd_len = MAX_CMDSZ;
1605 host->max_channel = MAX_BUSES - 1;
1606 host->max_lun = MAX_LUNS;
1607 host->transportt = qla2xxx_transport_template;
1608
1609 ret = qla2x00_request_irqs(ha);
1610 if (ret)
1611 goto probe_failed;
1612
1613 /* Initialized the timer */
1614 qla2x00_start_timer(ha, qla2x00_timer, WATCH_INTERVAL);
1615
1616 DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
1617 ha->host_no, ha));
1618
1619 ha->isp_ops.disable_intrs(ha);
1620
1621 spin_lock_irqsave(&ha->hardware_lock, flags);
1622 reg = ha->iobase;
1623 if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
1624 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_HOST_INT);
1625 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_RISC_INT);
1626 } else {
1627 WRT_REG_WORD(&reg->isp.semaphore, 0);
1628 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_RISC_INT);
1629 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_HOST_INT);
1630
1631 /* Enable proper parity */
1632 if (!IS_QLA2100(ha) && !IS_QLA2200(ha)) {
1633 if (IS_QLA2300(ha))
1634 /* SRAM parity */
1635 WRT_REG_WORD(&reg->isp.hccr,
1636 (HCCR_ENABLE_PARITY + 0x1));
1637 else
1638 /* SRAM, Instruction RAM and GP RAM parity */
1639 WRT_REG_WORD(&reg->isp.hccr,
1640 (HCCR_ENABLE_PARITY + 0x7));
1641 }
1642 }
1643 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1644
1645 ha->isp_ops.enable_intrs(ha);
1646
1647 pci_set_drvdata(pdev, ha);
1648
1649 ha->flags.init_done = 1;
1650 ha->flags.online = 1;
1651
1652 num_hosts++;
1653
1654 ret = scsi_add_host(host, &pdev->dev);
1655 if (ret)
1656 goto probe_failed;
1657
1658 scsi_scan_host(host);
1659
1660 qla2x00_alloc_sysfs_attr(ha);
1661
1662 qla2x00_init_host_attr(ha);
1663
1664 qla_printk(KERN_INFO, ha, "\n"
1665 " QLogic Fibre Channel HBA Driver: %s\n"
1666 " QLogic %s - %s\n"
1667 " ISP%04X: %s @ %s hdma%c, host#=%ld, fw=%s\n",
1668 qla2x00_version_str, ha->model_number,
1669 ha->model_desc ? ha->model_desc: "", pdev->device,
1670 ha->isp_ops.pci_info_str(ha, pci_info), pci_name(pdev),
1671 ha->flags.enable_64bit_addressing ? '+': '-', ha->host_no,
1672 ha->isp_ops.fw_version_str(ha, fw_str));
1673
1674 return 0;
1675
1676 probe_failed:
1677 qla2x00_free_device(ha);
1678
1679 scsi_host_put(host);
1680
1681 probe_disable_device:
1682 pci_disable_device(pdev);
1683
1684 probe_out:
1685 return ret;
1686 }
1687
1688 static void __devexit
1689 qla2x00_remove_one(struct pci_dev *pdev)
1690 {
1691 scsi_qla_host_t *ha;
1692
1693 ha = pci_get_drvdata(pdev);
1694
1695 qla2x00_free_sysfs_attr(ha);
1696
1697 fc_remove_host(ha->host);
1698
1699 scsi_remove_host(ha->host);
1700
1701 qla2x00_free_device(ha);
1702
1703 scsi_host_put(ha->host);
1704
1705 pci_set_drvdata(pdev, NULL);
1706 }
1707
1708 static void
1709 qla2x00_free_device(scsi_qla_host_t *ha)
1710 {
1711 /* Disable timer */
1712 if (ha->timer_active)
1713 qla2x00_stop_timer(ha);
1714
1715 /* Kill the kernel thread for this host */
1716 if (ha->dpc_thread) {
1717 struct task_struct *t = ha->dpc_thread;
1718
1719 /*
1720 * qla2xxx_wake_dpc checks for ->dpc_thread
1721 * so we need to zero it out.
1722 */
1723 ha->dpc_thread = NULL;
1724 kthread_stop(t);
1725 }
1726
1727 if (ha->eft)
1728 qla2x00_trace_control(ha, TC_DISABLE, 0, 0);
1729
1730 ha->flags.online = 0;
1731
1732 /* Stop currently executing firmware. */
1733 qla2x00_try_to_stop_firmware(ha);
1734
1735 /* turn-off interrupts on the card */
1736 if (ha->interrupts_on)
1737 ha->isp_ops.disable_intrs(ha);
1738
1739 qla2x00_mem_free(ha);
1740
1741 qla2x00_free_irqs(ha);
1742
1743 /* release io space registers */
1744 if (ha->iobase)
1745 iounmap(ha->iobase);
1746 pci_release_regions(ha->pdev);
1747
1748 pci_disable_device(ha->pdev);
1749 }
1750
1751 static inline void
1752 qla2x00_schedule_rport_del(struct scsi_qla_host *ha, fc_port_t *fcport,
1753 int defer)
1754 {
1755 unsigned long flags;
1756 struct fc_rport *rport;
1757
1758 if (!fcport->rport)
1759 return;
1760
1761 rport = fcport->rport;
1762 if (defer) {
1763 spin_lock_irqsave(&fcport->rport_lock, flags);
1764 fcport->drport = rport;
1765 fcport->rport = NULL;
1766 *(fc_port_t **)rport->dd_data = NULL;
1767 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1768 set_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags);
1769 } else {
1770 spin_lock_irqsave(&fcport->rport_lock, flags);
1771 fcport->rport = NULL;
1772 *(fc_port_t **)rport->dd_data = NULL;
1773 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1774 fc_remote_port_delete(rport);
1775 }
1776 }
1777
1778 /*
1779 * qla2x00_mark_device_lost Updates fcport state when device goes offline.
1780 *
1781 * Input: ha = adapter block pointer. fcport = port structure pointer.
1782 *
1783 * Return: None.
1784 *
1785 * Context:
1786 */
1787 void qla2x00_mark_device_lost(scsi_qla_host_t *ha, fc_port_t *fcport,
1788 int do_login, int defer)
1789 {
1790 if (atomic_read(&fcport->state) == FCS_ONLINE)
1791 qla2x00_schedule_rport_del(ha, fcport, defer);
1792
1793 /*
1794 * We may need to retry the login, so don't change the state of the
1795 * port but do the retries.
1796 */
1797 if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
1798 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1799
1800 if (!do_login)
1801 return;
1802
1803 if (fcport->login_retry == 0) {
1804 fcport->login_retry = ha->login_retry_count;
1805 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
1806
1807 DEBUG(printk("scsi(%ld): Port login retry: "
1808 "%02x%02x%02x%02x%02x%02x%02x%02x, "
1809 "id = 0x%04x retry cnt=%d\n",
1810 ha->host_no,
1811 fcport->port_name[0],
1812 fcport->port_name[1],
1813 fcport->port_name[2],
1814 fcport->port_name[3],
1815 fcport->port_name[4],
1816 fcport->port_name[5],
1817 fcport->port_name[6],
1818 fcport->port_name[7],
1819 fcport->loop_id,
1820 fcport->login_retry));
1821 }
1822 }
1823
1824 /*
1825 * qla2x00_mark_all_devices_lost
1826 * Updates fcport state when device goes offline.
1827 *
1828 * Input:
1829 * ha = adapter block pointer.
1830 * fcport = port structure pointer.
1831 *
1832 * Return:
1833 * None.
1834 *
1835 * Context:
1836 */
1837 void
1838 qla2x00_mark_all_devices_lost(scsi_qla_host_t *ha, int defer)
1839 {
1840 fc_port_t *fcport;
1841
1842 list_for_each_entry(fcport, &ha->fcports, list) {
1843 if (fcport->port_type != FCT_TARGET)
1844 continue;
1845
1846 /*
1847 * No point in marking the device as lost, if the device is
1848 * already DEAD.
1849 */
1850 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
1851 continue;
1852 if (atomic_read(&fcport->state) == FCS_ONLINE)
1853 qla2x00_schedule_rport_del(ha, fcport, defer);
1854 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1855 }
1856
1857 if (defer)
1858 qla2xxx_wake_dpc(ha);
1859 }
1860
1861 /*
1862 * qla2x00_mem_alloc
1863 * Allocates adapter memory.
1864 *
1865 * Returns:
1866 * 0 = success.
1867 * 1 = failure.
1868 */
1869 static uint8_t
1870 qla2x00_mem_alloc(scsi_qla_host_t *ha)
1871 {
1872 char name[16];
1873 uint8_t status = 1;
1874 int retry= 10;
1875
1876 do {
1877 /*
1878 * This will loop only once if everything goes well, else some
1879 * number of retries will be performed to get around a kernel
1880 * bug where available mem is not allocated until after a
1881 * little delay and a retry.
1882 */
1883 ha->request_ring = dma_alloc_coherent(&ha->pdev->dev,
1884 (ha->request_q_length + 1) * sizeof(request_t),
1885 &ha->request_dma, GFP_KERNEL);
1886 if (ha->request_ring == NULL) {
1887 qla_printk(KERN_WARNING, ha,
1888 "Memory Allocation failed - request_ring\n");
1889
1890 qla2x00_mem_free(ha);
1891 msleep(100);
1892
1893 continue;
1894 }
1895
1896 ha->response_ring = dma_alloc_coherent(&ha->pdev->dev,
1897 (ha->response_q_length + 1) * sizeof(response_t),
1898 &ha->response_dma, GFP_KERNEL);
1899 if (ha->response_ring == NULL) {
1900 qla_printk(KERN_WARNING, ha,
1901 "Memory Allocation failed - response_ring\n");
1902
1903 qla2x00_mem_free(ha);
1904 msleep(100);
1905
1906 continue;
1907 }
1908
1909 ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
1910 &ha->gid_list_dma, GFP_KERNEL);
1911 if (ha->gid_list == NULL) {
1912 qla_printk(KERN_WARNING, ha,
1913 "Memory Allocation failed - gid_list\n");
1914
1915 qla2x00_mem_free(ha);
1916 msleep(100);
1917
1918 continue;
1919 }
1920
1921 snprintf(name, sizeof(name), "%s_%ld", QLA2XXX_DRIVER_NAME,
1922 ha->host_no);
1923 ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
1924 DMA_POOL_SIZE, 8, 0);
1925 if (ha->s_dma_pool == NULL) {
1926 qla_printk(KERN_WARNING, ha,
1927 "Memory Allocation failed - s_dma_pool\n");
1928
1929 qla2x00_mem_free(ha);
1930 msleep(100);
1931
1932 continue;
1933 }
1934
1935 /* get consistent memory allocated for init control block */
1936 ha->init_cb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
1937 &ha->init_cb_dma);
1938 if (ha->init_cb == NULL) {
1939 qla_printk(KERN_WARNING, ha,
1940 "Memory Allocation failed - init_cb\n");
1941
1942 qla2x00_mem_free(ha);
1943 msleep(100);
1944
1945 continue;
1946 }
1947 memset(ha->init_cb, 0, ha->init_cb_size);
1948
1949 if (qla2x00_allocate_sp_pool(ha)) {
1950 qla_printk(KERN_WARNING, ha,
1951 "Memory Allocation failed - "
1952 "qla2x00_allocate_sp_pool()\n");
1953
1954 qla2x00_mem_free(ha);
1955 msleep(100);
1956
1957 continue;
1958 }
1959
1960 /* Allocate memory for SNS commands */
1961 if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
1962 /* Get consistent memory allocated for SNS commands */
1963 ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
1964 sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma,
1965 GFP_KERNEL);
1966 if (ha->sns_cmd == NULL) {
1967 /* error */
1968 qla_printk(KERN_WARNING, ha,
1969 "Memory Allocation failed - sns_cmd\n");
1970
1971 qla2x00_mem_free(ha);
1972 msleep(100);
1973
1974 continue;
1975 }
1976 memset(ha->sns_cmd, 0, sizeof(struct sns_cmd_pkt));
1977 } else {
1978 /* Get consistent memory allocated for MS IOCB */
1979 ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
1980 &ha->ms_iocb_dma);
1981 if (ha->ms_iocb == NULL) {
1982 /* error */
1983 qla_printk(KERN_WARNING, ha,
1984 "Memory Allocation failed - ms_iocb\n");
1985
1986 qla2x00_mem_free(ha);
1987 msleep(100);
1988
1989 continue;
1990 }
1991 memset(ha->ms_iocb, 0, sizeof(ms_iocb_entry_t));
1992
1993 /*
1994 * Get consistent memory allocated for CT SNS
1995 * commands
1996 */
1997 ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
1998 sizeof(struct ct_sns_pkt), &ha->ct_sns_dma,
1999 GFP_KERNEL);
2000 if (ha->ct_sns == NULL) {
2001 /* error */
2002 qla_printk(KERN_WARNING, ha,
2003 "Memory Allocation failed - ct_sns\n");
2004
2005 qla2x00_mem_free(ha);
2006 msleep(100);
2007
2008 continue;
2009 }
2010 memset(ha->ct_sns, 0, sizeof(struct ct_sns_pkt));
2011
2012 if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
2013 /*
2014 * Get consistent memory allocated for SFP
2015 * block.
2016 */
2017 ha->sfp_data = dma_pool_alloc(ha->s_dma_pool,
2018 GFP_KERNEL, &ha->sfp_data_dma);
2019 if (ha->sfp_data == NULL) {
2020 qla_printk(KERN_WARNING, ha,
2021 "Memory Allocation failed - "
2022 "sfp_data\n");
2023
2024 qla2x00_mem_free(ha);
2025 msleep(100);
2026
2027 continue;
2028 }
2029 memset(ha->sfp_data, 0, SFP_BLOCK_SIZE);
2030 }
2031 }
2032
2033 /* Done all allocations without any error. */
2034 status = 0;
2035
2036 } while (retry-- && status != 0);
2037
2038 if (status) {
2039 printk(KERN_WARNING
2040 "%s(): **** FAILED ****\n", __func__);
2041 }
2042
2043 return(status);
2044 }
2045
2046 /*
2047 * qla2x00_mem_free
2048 * Frees all adapter allocated memory.
2049 *
2050 * Input:
2051 * ha = adapter block pointer.
2052 */
2053 static void
2054 qla2x00_mem_free(scsi_qla_host_t *ha)
2055 {
2056 struct list_head *fcpl, *fcptemp;
2057 fc_port_t *fcport;
2058
2059 if (ha == NULL) {
2060 /* error */
2061 DEBUG2(printk("%s(): ERROR invalid ha pointer.\n", __func__));
2062 return;
2063 }
2064
2065 /* free sp pool */
2066 qla2x00_free_sp_pool(ha);
2067
2068 if (ha->fw_dump) {
2069 if (ha->eft)
2070 dma_free_coherent(&ha->pdev->dev,
2071 ntohl(ha->fw_dump->eft_size), ha->eft, ha->eft_dma);
2072 vfree(ha->fw_dump);
2073 }
2074
2075 if (ha->sns_cmd)
2076 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
2077 ha->sns_cmd, ha->sns_cmd_dma);
2078
2079 if (ha->ct_sns)
2080 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2081 ha->ct_sns, ha->ct_sns_dma);
2082
2083 if (ha->sfp_data)
2084 dma_pool_free(ha->s_dma_pool, ha->sfp_data, ha->sfp_data_dma);
2085
2086 if (ha->ms_iocb)
2087 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2088
2089 if (ha->init_cb)
2090 dma_pool_free(ha->s_dma_pool, ha->init_cb, ha->init_cb_dma);
2091
2092 if (ha->s_dma_pool)
2093 dma_pool_destroy(ha->s_dma_pool);
2094
2095 if (ha->gid_list)
2096 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2097 ha->gid_list_dma);
2098
2099 if (ha->response_ring)
2100 dma_free_coherent(&ha->pdev->dev,
2101 (ha->response_q_length + 1) * sizeof(response_t),
2102 ha->response_ring, ha->response_dma);
2103
2104 if (ha->request_ring)
2105 dma_free_coherent(&ha->pdev->dev,
2106 (ha->request_q_length + 1) * sizeof(request_t),
2107 ha->request_ring, ha->request_dma);
2108
2109 ha->eft = NULL;
2110 ha->eft_dma = 0;
2111 ha->sns_cmd = NULL;
2112 ha->sns_cmd_dma = 0;
2113 ha->ct_sns = NULL;
2114 ha->ct_sns_dma = 0;
2115 ha->ms_iocb = NULL;
2116 ha->ms_iocb_dma = 0;
2117 ha->init_cb = NULL;
2118 ha->init_cb_dma = 0;
2119
2120 ha->s_dma_pool = NULL;
2121
2122 ha->gid_list = NULL;
2123 ha->gid_list_dma = 0;
2124
2125 ha->response_ring = NULL;
2126 ha->response_dma = 0;
2127 ha->request_ring = NULL;
2128 ha->request_dma = 0;
2129
2130 list_for_each_safe(fcpl, fcptemp, &ha->fcports) {
2131 fcport = list_entry(fcpl, fc_port_t, list);
2132
2133 /* fc ports */
2134 list_del_init(&fcport->list);
2135 kfree(fcport);
2136 }
2137 INIT_LIST_HEAD(&ha->fcports);
2138
2139 ha->fw_dump = NULL;
2140 ha->fw_dumped = 0;
2141 ha->fw_dump_reading = 0;
2142
2143 vfree(ha->optrom_buffer);
2144 }
2145
2146 /*
2147 * qla2x00_allocate_sp_pool
2148 * This routine is called during initialization to allocate
2149 * memory for local srb_t.
2150 *
2151 * Input:
2152 * ha = adapter block pointer.
2153 *
2154 * Context:
2155 * Kernel context.
2156 */
2157 static int
2158 qla2x00_allocate_sp_pool(scsi_qla_host_t *ha)
2159 {
2160 int rval;
2161
2162 rval = QLA_SUCCESS;
2163 ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
2164 if (ha->srb_mempool == NULL) {
2165 qla_printk(KERN_INFO, ha, "Unable to allocate SRB mempool.\n");
2166 rval = QLA_FUNCTION_FAILED;
2167 }
2168 return (rval);
2169 }
2170
2171 /*
2172 * This routine frees all adapter allocated memory.
2173 *
2174 */
2175 static void
2176 qla2x00_free_sp_pool( scsi_qla_host_t *ha)
2177 {
2178 if (ha->srb_mempool) {
2179 mempool_destroy(ha->srb_mempool);
2180 ha->srb_mempool = NULL;
2181 }
2182 }
2183
2184 /**************************************************************************
2185 * qla2x00_do_dpc
2186 * This kernel thread is a task that is schedule by the interrupt handler
2187 * to perform the background processing for interrupts.
2188 *
2189 * Notes:
2190 * This task always run in the context of a kernel thread. It
2191 * is kick-off by the driver's detect code and starts up
2192 * up one per adapter. It immediately goes to sleep and waits for
2193 * some fibre event. When either the interrupt handler or
2194 * the timer routine detects a event it will one of the task
2195 * bits then wake us up.
2196 **************************************************************************/
2197 static int
2198 qla2x00_do_dpc(void *data)
2199 {
2200 scsi_qla_host_t *ha;
2201 fc_port_t *fcport;
2202 uint8_t status;
2203 uint16_t next_loopid;
2204
2205 ha = (scsi_qla_host_t *)data;
2206
2207 set_user_nice(current, -20);
2208
2209 while (!kthread_should_stop()) {
2210 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
2211
2212 set_current_state(TASK_INTERRUPTIBLE);
2213 schedule();
2214 __set_current_state(TASK_RUNNING);
2215
2216 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
2217
2218 /* Initialization not yet finished. Don't do anything yet. */
2219 if (!ha->flags.init_done)
2220 continue;
2221
2222 DEBUG3(printk("scsi(%ld): DPC handler\n", ha->host_no));
2223
2224 ha->dpc_active = 1;
2225
2226 if (ha->flags.mbox_busy) {
2227 ha->dpc_active = 0;
2228 continue;
2229 }
2230
2231 if (test_and_clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) {
2232
2233 DEBUG(printk("scsi(%ld): dpc: sched "
2234 "qla2x00_abort_isp ha = %p\n",
2235 ha->host_no, ha));
2236 if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
2237 &ha->dpc_flags))) {
2238
2239 if (qla2x00_abort_isp(ha)) {
2240 /* failed. retry later */
2241 set_bit(ISP_ABORT_NEEDED,
2242 &ha->dpc_flags);
2243 }
2244 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2245 }
2246 DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
2247 ha->host_no));
2248 }
2249
2250 if (test_and_clear_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags))
2251 qla2x00_update_fcports(ha);
2252
2253 if (test_and_clear_bit(LOOP_RESET_NEEDED, &ha->dpc_flags)) {
2254 DEBUG(printk("scsi(%ld): dpc: sched loop_reset()\n",
2255 ha->host_no));
2256 qla2x00_loop_reset(ha);
2257 }
2258
2259 if (test_and_clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) &&
2260 (!(test_and_set_bit(RESET_ACTIVE, &ha->dpc_flags)))) {
2261
2262 DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
2263 ha->host_no));
2264
2265 qla2x00_rst_aen(ha);
2266 clear_bit(RESET_ACTIVE, &ha->dpc_flags);
2267 }
2268
2269 /* Retry each device up to login retry count */
2270 if ((test_and_clear_bit(RELOGIN_NEEDED, &ha->dpc_flags)) &&
2271 !test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) &&
2272 atomic_read(&ha->loop_state) != LOOP_DOWN) {
2273
2274 DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
2275 ha->host_no));
2276
2277 next_loopid = 0;
2278 list_for_each_entry(fcport, &ha->fcports, list) {
2279 /*
2280 * If the port is not ONLINE then try to login
2281 * to it if we haven't run out of retries.
2282 */
2283 if (atomic_read(&fcport->state) != FCS_ONLINE &&
2284 fcport->login_retry) {
2285
2286 fcport->login_retry--;
2287 if (fcport->flags & FCF_FABRIC_DEVICE) {
2288 if (fcport->flags &
2289 FCF_TAPE_PRESENT)
2290 ha->isp_ops.fabric_logout(
2291 ha, fcport->loop_id,
2292 fcport->d_id.b.domain,
2293 fcport->d_id.b.area,
2294 fcport->d_id.b.al_pa);
2295 status = qla2x00_fabric_login(
2296 ha, fcport, &next_loopid);
2297 } else
2298 status =
2299 qla2x00_local_device_login(
2300 ha, fcport);
2301
2302 if (status == QLA_SUCCESS) {
2303 fcport->old_loop_id = fcport->loop_id;
2304
2305 DEBUG(printk("scsi(%ld): port login OK: logged in ID 0x%x\n",
2306 ha->host_no, fcport->loop_id));
2307
2308 qla2x00_update_fcport(ha,
2309 fcport);
2310 } else if (status == 1) {
2311 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
2312 /* retry the login again */
2313 DEBUG(printk("scsi(%ld): Retrying %d login again loop_id 0x%x\n",
2314 ha->host_no,
2315 fcport->login_retry, fcport->loop_id));
2316 } else {
2317 fcport->login_retry = 0;
2318 }
2319 }
2320 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2321 break;
2322 }
2323 DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
2324 ha->host_no));
2325 }
2326
2327 if ((test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags)) &&
2328 atomic_read(&ha->loop_state) != LOOP_DOWN) {
2329
2330 clear_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags);
2331 DEBUG(printk("scsi(%ld): qla2x00_login_retry()\n",
2332 ha->host_no));
2333
2334 set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
2335
2336 DEBUG(printk("scsi(%ld): qla2x00_login_retry - end\n",
2337 ha->host_no));
2338 }
2339
2340 if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
2341
2342 DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
2343 ha->host_no));
2344
2345 if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
2346 &ha->dpc_flags))) {
2347
2348 qla2x00_loop_resync(ha);
2349
2350 clear_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags);
2351 }
2352
2353 DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
2354 ha->host_no));
2355 }
2356
2357 if (test_and_clear_bit(FCPORT_RESCAN_NEEDED, &ha->dpc_flags)) {
2358
2359 DEBUG(printk("scsi(%ld): Rescan flagged fcports...\n",
2360 ha->host_no));
2361
2362 qla2x00_rescan_fcports(ha);
2363
2364 DEBUG(printk("scsi(%ld): Rescan flagged fcports..."
2365 "end.\n",
2366 ha->host_no));
2367 }
2368
2369 if (!ha->interrupts_on)
2370 ha->isp_ops.enable_intrs(ha);
2371
2372 if (test_and_clear_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags))
2373 ha->isp_ops.beacon_blink(ha);
2374
2375 ha->dpc_active = 0;
2376 } /* End of while(1) */
2377
2378 DEBUG(printk("scsi(%ld): DPC handler exiting\n", ha->host_no));
2379
2380 /*
2381 * Make sure that nobody tries to wake us up again.
2382 */
2383 ha->dpc_active = 0;
2384
2385 return 0;
2386 }
2387
2388 void
2389 qla2xxx_wake_dpc(scsi_qla_host_t *ha)
2390 {
2391 if (ha->dpc_thread)
2392 wake_up_process(ha->dpc_thread);
2393 }
2394
2395 /*
2396 * qla2x00_rst_aen
2397 * Processes asynchronous reset.
2398 *
2399 * Input:
2400 * ha = adapter block pointer.
2401 */
2402 static void
2403 qla2x00_rst_aen(scsi_qla_host_t *ha)
2404 {
2405 if (ha->flags.online && !ha->flags.reset_active &&
2406 !atomic_read(&ha->loop_down_timer) &&
2407 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) {
2408 do {
2409 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
2410
2411 /*
2412 * Issue marker command only when we are going to start
2413 * the I/O.
2414 */
2415 ha->marker_needed = 1;
2416 } while (!atomic_read(&ha->loop_down_timer) &&
2417 (test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags)));
2418 }
2419 }
2420
2421 static void
2422 qla2x00_sp_free_dma(scsi_qla_host_t *ha, srb_t *sp)
2423 {
2424 struct scsi_cmnd *cmd = sp->cmd;
2425
2426 if (sp->flags & SRB_DMA_VALID) {
2427 if (cmd->use_sg) {
2428 dma_unmap_sg(&ha->pdev->dev, cmd->request_buffer,
2429 cmd->use_sg, cmd->sc_data_direction);
2430 } else if (cmd->request_bufflen) {
2431 dma_unmap_single(&ha->pdev->dev, sp->dma_handle,
2432 cmd->request_bufflen, cmd->sc_data_direction);
2433 }
2434 sp->flags &= ~SRB_DMA_VALID;
2435 }
2436 CMD_SP(cmd) = NULL;
2437 }
2438
2439 void
2440 qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *sp)
2441 {
2442 struct scsi_cmnd *cmd = sp->cmd;
2443
2444 qla2x00_sp_free_dma(ha, sp);
2445
2446 mempool_free(sp, ha->srb_mempool);
2447
2448 cmd->scsi_done(cmd);
2449 }
2450
2451 /**************************************************************************
2452 * qla2x00_timer
2453 *
2454 * Description:
2455 * One second timer
2456 *
2457 * Context: Interrupt
2458 ***************************************************************************/
2459 static void
2460 qla2x00_timer(scsi_qla_host_t *ha)
2461 {
2462 unsigned long cpu_flags = 0;
2463 fc_port_t *fcport;
2464 int start_dpc = 0;
2465 int index;
2466 srb_t *sp;
2467 int t;
2468
2469 /*
2470 * Ports - Port down timer.
2471 *
2472 * Whenever, a port is in the LOST state we start decrementing its port
2473 * down timer every second until it reaches zero. Once it reaches zero
2474 * the port it marked DEAD.
2475 */
2476 t = 0;
2477 list_for_each_entry(fcport, &ha->fcports, list) {
2478 if (fcport->port_type != FCT_TARGET)
2479 continue;
2480
2481 if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
2482
2483 if (atomic_read(&fcport->port_down_timer) == 0)
2484 continue;
2485
2486 if (atomic_dec_and_test(&fcport->port_down_timer) != 0)
2487 atomic_set(&fcport->state, FCS_DEVICE_DEAD);
2488
2489 DEBUG(printk("scsi(%ld): fcport-%d - port retry count: "
2490 "%d remaining\n",
2491 ha->host_no,
2492 t, atomic_read(&fcport->port_down_timer)));
2493 }
2494 t++;
2495 } /* End of for fcport */
2496
2497
2498 /* Loop down handler. */
2499 if (atomic_read(&ha->loop_down_timer) > 0 &&
2500 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags)) && ha->flags.online) {
2501
2502 if (atomic_read(&ha->loop_down_timer) ==
2503 ha->loop_down_abort_time) {
2504
2505 DEBUG(printk("scsi(%ld): Loop Down - aborting the "
2506 "queues before time expire\n",
2507 ha->host_no));
2508
2509 if (!IS_QLA2100(ha) && ha->link_down_timeout)
2510 atomic_set(&ha->loop_state, LOOP_DEAD);
2511
2512 /* Schedule an ISP abort to return any tape commands. */
2513 spin_lock_irqsave(&ha->hardware_lock, cpu_flags);
2514 for (index = 1; index < MAX_OUTSTANDING_COMMANDS;
2515 index++) {
2516 fc_port_t *sfcp;
2517
2518 sp = ha->outstanding_cmds[index];
2519 if (!sp)
2520 continue;
2521 sfcp = sp->fcport;
2522 if (!(sfcp->flags & FCF_TAPE_PRESENT))
2523 continue;
2524
2525 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2526 break;
2527 }
2528 spin_unlock_irqrestore(&ha->hardware_lock, cpu_flags);
2529
2530 set_bit(ABORT_QUEUES_NEEDED, &ha->dpc_flags);
2531 start_dpc++;
2532 }
2533
2534 /* if the loop has been down for 4 minutes, reinit adapter */
2535 if (atomic_dec_and_test(&ha->loop_down_timer) != 0) {
2536 DEBUG(printk("scsi(%ld): Loop down exceed 4 mins - "
2537 "restarting queues.\n",
2538 ha->host_no));
2539
2540 set_bit(RESTART_QUEUES_NEEDED, &ha->dpc_flags);
2541 start_dpc++;
2542
2543 if (!(ha->device_flags & DFLG_NO_CABLE)) {
2544 DEBUG(printk("scsi(%ld): Loop down - "
2545 "aborting ISP.\n",
2546 ha->host_no));
2547 qla_printk(KERN_WARNING, ha,
2548 "Loop down - aborting ISP.\n");
2549
2550 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2551 }
2552 }
2553 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
2554 ha->host_no,
2555 atomic_read(&ha->loop_down_timer)));
2556 }
2557
2558 /* Check if beacon LED needs to be blinked */
2559 if (ha->beacon_blink_led == 1) {
2560 set_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags);
2561 start_dpc++;
2562 }
2563
2564 /* Schedule the DPC routine if needed */
2565 if ((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags) ||
2566 test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) ||
2567 test_bit(LOOP_RESET_NEEDED, &ha->dpc_flags) ||
2568 test_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags) ||
2569 start_dpc ||
2570 test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags) ||
2571 test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) ||
2572 test_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags) ||
2573 test_bit(RELOGIN_NEEDED, &ha->dpc_flags)))
2574 qla2xxx_wake_dpc(ha);
2575
2576 qla2x00_restart_timer(ha, WATCH_INTERVAL);
2577 }
2578
2579 /* XXX(hch): crude hack to emulate a down_timeout() */
2580 int
2581 qla2x00_down_timeout(struct semaphore *sema, unsigned long timeout)
2582 {
2583 const unsigned int step = 100; /* msecs */
2584 unsigned int iterations = jiffies_to_msecs(timeout)/100;
2585
2586 do {
2587 if (!down_trylock(sema))
2588 return 0;
2589 if (msleep_interruptible(step))
2590 break;
2591 } while (--iterations >= 0);
2592
2593 return -ETIMEDOUT;
2594 }
2595
2596 /* Firmware interface routines. */
2597
2598 #define FW_BLOBS 5
2599 #define FW_ISP21XX 0
2600 #define FW_ISP22XX 1
2601 #define FW_ISP2300 2
2602 #define FW_ISP2322 3
2603 #define FW_ISP24XX 4
2604
2605 #define FW_FILE_ISP21XX "ql2100_fw.bin"
2606 #define FW_FILE_ISP22XX "ql2200_fw.bin"
2607 #define FW_FILE_ISP2300 "ql2300_fw.bin"
2608 #define FW_FILE_ISP2322 "ql2322_fw.bin"
2609 #define FW_FILE_ISP24XX "ql2400_fw.bin"
2610
2611 static DECLARE_MUTEX(qla_fw_lock);
2612
2613 static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
2614 { .name = FW_FILE_ISP21XX, .segs = { 0x1000, 0 }, },
2615 { .name = FW_FILE_ISP22XX, .segs = { 0x1000, 0 }, },
2616 { .name = FW_FILE_ISP2300, .segs = { 0x800, 0 }, },
2617 { .name = FW_FILE_ISP2322, .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
2618 { .name = FW_FILE_ISP24XX, },
2619 };
2620
2621 struct fw_blob *
2622 qla2x00_request_firmware(scsi_qla_host_t *ha)
2623 {
2624 struct fw_blob *blob;
2625
2626 blob = NULL;
2627 if (IS_QLA2100(ha)) {
2628 blob = &qla_fw_blobs[FW_ISP21XX];
2629 } else if (IS_QLA2200(ha)) {
2630 blob = &qla_fw_blobs[FW_ISP22XX];
2631 } else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
2632 blob = &qla_fw_blobs[FW_ISP2300];
2633 } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
2634 blob = &qla_fw_blobs[FW_ISP2322];
2635 } else if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
2636 blob = &qla_fw_blobs[FW_ISP24XX];
2637 }
2638
2639 down(&qla_fw_lock);
2640 if (blob->fw)
2641 goto out;
2642
2643 if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
2644 DEBUG2(printk("scsi(%ld): Failed to load firmware image "
2645 "(%s).\n", ha->host_no, blob->name));
2646 blob->fw = NULL;
2647 blob = NULL;
2648 goto out;
2649 }
2650
2651 out:
2652 up(&qla_fw_lock);
2653 return blob;
2654 }
2655
2656 static void
2657 qla2x00_release_firmware(void)
2658 {
2659 int idx;
2660
2661 down(&qla_fw_lock);
2662 for (idx = 0; idx < FW_BLOBS; idx++)
2663 if (qla_fw_blobs[idx].fw)
2664 release_firmware(qla_fw_blobs[idx].fw);
2665 up(&qla_fw_lock);
2666 }
2667
2668 static struct pci_device_id qla2xxx_pci_tbl[] = {
2669 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
2670 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
2671 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
2672 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
2673 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
2674 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
2675 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
2676 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
2677 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
2678 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
2679 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
2680 { 0 },
2681 };
2682 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
2683
2684 static struct pci_driver qla2xxx_pci_driver = {
2685 .name = QLA2XXX_DRIVER_NAME,
2686 .driver = {
2687 .owner = THIS_MODULE,
2688 },
2689 .id_table = qla2xxx_pci_tbl,
2690 .probe = qla2x00_probe_one,
2691 .remove = __devexit_p(qla2x00_remove_one),
2692 };
2693
2694 /**
2695 * qla2x00_module_init - Module initialization.
2696 **/
2697 static int __init
2698 qla2x00_module_init(void)
2699 {
2700 int ret = 0;
2701
2702 /* Allocate cache for SRBs. */
2703 srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
2704 SLAB_HWCACHE_ALIGN, NULL, NULL);
2705 if (srb_cachep == NULL) {
2706 printk(KERN_ERR
2707 "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
2708 return -ENOMEM;
2709 }
2710
2711 /* Derive version string. */
2712 strcpy(qla2x00_version_str, QLA2XXX_VERSION);
2713 if (ql2xextended_error_logging)
2714 strcat(qla2x00_version_str, "-debug");
2715
2716 qla2xxx_transport_template =
2717 fc_attach_transport(&qla2xxx_transport_functions);
2718 if (!qla2xxx_transport_template)
2719 return -ENODEV;
2720
2721 printk(KERN_INFO "QLogic Fibre Channel HBA Driver\n");
2722 ret = pci_register_driver(&qla2xxx_pci_driver);
2723 if (ret) {
2724 kmem_cache_destroy(srb_cachep);
2725 fc_release_transport(qla2xxx_transport_template);
2726 }
2727 return ret;
2728 }
2729
2730 /**
2731 * qla2x00_module_exit - Module cleanup.
2732 **/
2733 static void __exit
2734 qla2x00_module_exit(void)
2735 {
2736 pci_unregister_driver(&qla2xxx_pci_driver);
2737 qla2x00_release_firmware();
2738 kmem_cache_destroy(srb_cachep);
2739 fc_release_transport(qla2xxx_transport_template);
2740 }
2741
2742 module_init(qla2x00_module_init);
2743 module_exit(qla2x00_module_exit);
2744
2745 MODULE_AUTHOR("QLogic Corporation");
2746 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
2747 MODULE_LICENSE("GPL");
2748 MODULE_VERSION(QLA2XXX_VERSION);
2749 MODULE_FIRMWARE(FW_FILE_ISP21XX);
2750 MODULE_FIRMWARE(FW_FILE_ISP22XX);
2751 MODULE_FIRMWARE(FW_FILE_ISP2300);
2752 MODULE_FIRMWARE(FW_FILE_ISP2322);
2753 MODULE_FIRMWARE(FW_FILE_ISP24XX);
kernel-based virtual machine