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Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6
[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 int num_hosts;
33 int ql2xlogintimeout = 20;
34 module_param(ql2xlogintimeout, int, S_IRUGO|S_IRUSR);
35 MODULE_PARM_DESC(ql2xlogintimeout,
36 "Login timeout value in seconds.");
37
38 int qlport_down_retry;
39 module_param(qlport_down_retry, int, S_IRUGO|S_IRUSR);
40 MODULE_PARM_DESC(qlport_down_retry,
41 "Maximum number of command retries to a port that returns "
42 "a PORT-DOWN status.");
43
44 int ql2xplogiabsentdevice;
45 module_param(ql2xplogiabsentdevice, int, S_IRUGO|S_IWUSR);
46 MODULE_PARM_DESC(ql2xplogiabsentdevice,
47 "Option to enable PLOGI to devices that are not present after "
48 "a Fabric scan. This is needed for several broken switches. "
49 "Default is 0 - no PLOGI. 1 - perfom PLOGI.");
50
51 int ql2xloginretrycount = 0;
52 module_param(ql2xloginretrycount, int, S_IRUGO|S_IRUSR);
53 MODULE_PARM_DESC(ql2xloginretrycount,
54 "Specify an alternate value for the NVRAM login retry count.");
55
56 int ql2xallocfwdump = 1;
57 module_param(ql2xallocfwdump, int, S_IRUGO|S_IRUSR);
58 MODULE_PARM_DESC(ql2xallocfwdump,
59 "Option to enable allocation of memory for a firmware dump "
60 "during HBA initialization. Memory allocation requirements "
61 "vary by ISP type. Default is 1 - allocate memory.");
62
63 int ql2xextended_error_logging;
64 module_param(ql2xextended_error_logging, int, S_IRUGO|S_IWUSR);
65 MODULE_PARM_DESC(ql2xextended_error_logging,
66 "Option to enable extended error logging, "
67 "Default is 0 - no logging. 1 - log errors.");
68
69 static void qla2x00_free_device(scsi_qla_host_t *);
70
71 static void qla2x00_config_dma_addressing(scsi_qla_host_t *ha);
72
73 int ql2xfdmienable;
74 module_param(ql2xfdmienable, int, S_IRUGO|S_IRUSR);
75 MODULE_PARM_DESC(ql2xfdmienable,
76 "Enables FDMI registratons "
77 "Default is 0 - no FDMI. 1 - perfom FDMI.");
78
79 #define MAX_Q_DEPTH 32
80 static int ql2xmaxqdepth = MAX_Q_DEPTH;
81 module_param(ql2xmaxqdepth, int, S_IRUGO|S_IWUSR);
82 MODULE_PARM_DESC(ql2xmaxqdepth,
83 "Maximum queue depth to report for target devices.");
84
85 int ql2xqfullrampup = 120;
86 module_param(ql2xqfullrampup, int, S_IRUGO|S_IWUSR);
87 MODULE_PARM_DESC(ql2xqfullrampup,
88 "Number of seconds to wait to begin to ramp-up the queue "
89 "depth for a device after a queue-full condition has been "
90 "detected. Default is 120 seconds.");
91
92 /*
93 * SCSI host template entry points
94 */
95 static int qla2xxx_slave_configure(struct scsi_device * device);
96 static int qla2xxx_slave_alloc(struct scsi_device *);
97 static int qla2xxx_scan_finished(struct Scsi_Host *, unsigned long time);
98 static void qla2xxx_scan_start(struct Scsi_Host *);
99 static void qla2xxx_slave_destroy(struct scsi_device *);
100 static int qla2x00_queuecommand(struct scsi_cmnd *cmd,
101 void (*fn)(struct scsi_cmnd *));
102 static int qla24xx_queuecommand(struct scsi_cmnd *cmd,
103 void (*fn)(struct scsi_cmnd *));
104 static int qla2xxx_eh_abort(struct scsi_cmnd *);
105 static int qla2xxx_eh_device_reset(struct scsi_cmnd *);
106 static int qla2xxx_eh_bus_reset(struct scsi_cmnd *);
107 static int qla2xxx_eh_host_reset(struct scsi_cmnd *);
108 static int qla2x00_loop_reset(scsi_qla_host_t *ha);
109 static int qla2x00_device_reset(scsi_qla_host_t *, fc_port_t *);
110
111 static int qla2x00_change_queue_depth(struct scsi_device *, int);
112 static int qla2x00_change_queue_type(struct scsi_device *, int);
113
114 struct scsi_host_template qla2x00_driver_template = {
115 .module = THIS_MODULE,
116 .name = QLA2XXX_DRIVER_NAME,
117 .queuecommand = qla2x00_queuecommand,
118
119 .eh_abort_handler = qla2xxx_eh_abort,
120 .eh_device_reset_handler = qla2xxx_eh_device_reset,
121 .eh_bus_reset_handler = qla2xxx_eh_bus_reset,
122 .eh_host_reset_handler = qla2xxx_eh_host_reset,
123
124 .slave_configure = qla2xxx_slave_configure,
125
126 .slave_alloc = qla2xxx_slave_alloc,
127 .slave_destroy = qla2xxx_slave_destroy,
128 .scan_finished = qla2xxx_scan_finished,
129 .scan_start = qla2xxx_scan_start,
130 .change_queue_depth = qla2x00_change_queue_depth,
131 .change_queue_type = qla2x00_change_queue_type,
132 .this_id = -1,
133 .cmd_per_lun = 3,
134 .use_clustering = ENABLE_CLUSTERING,
135 .sg_tablesize = SG_ALL,
136
137 /*
138 * The RISC allows for each command to transfer (2^32-1) bytes of data,
139 * which equates to 0x800000 sectors.
140 */
141 .max_sectors = 0xFFFF,
142 .shost_attrs = qla2x00_host_attrs,
143 };
144
145 struct scsi_host_template qla24xx_driver_template = {
146 .module = THIS_MODULE,
147 .name = QLA2XXX_DRIVER_NAME,
148 .queuecommand = qla24xx_queuecommand,
149
150 .eh_abort_handler = qla2xxx_eh_abort,
151 .eh_device_reset_handler = qla2xxx_eh_device_reset,
152 .eh_bus_reset_handler = qla2xxx_eh_bus_reset,
153 .eh_host_reset_handler = qla2xxx_eh_host_reset,
154
155 .slave_configure = qla2xxx_slave_configure,
156
157 .slave_alloc = qla2xxx_slave_alloc,
158 .slave_destroy = qla2xxx_slave_destroy,
159 .scan_finished = qla2xxx_scan_finished,
160 .scan_start = qla2xxx_scan_start,
161 .change_queue_depth = qla2x00_change_queue_depth,
162 .change_queue_type = qla2x00_change_queue_type,
163 .this_id = -1,
164 .cmd_per_lun = 3,
165 .use_clustering = ENABLE_CLUSTERING,
166 .sg_tablesize = SG_ALL,
167
168 .max_sectors = 0xFFFF,
169 .shost_attrs = qla2x00_host_attrs,
170 };
171
172 static struct scsi_transport_template *qla2xxx_transport_template = NULL;
173 struct scsi_transport_template *qla2xxx_transport_vport_template = NULL;
174
175 /* TODO Convert to inlines
176 *
177 * Timer routines
178 */
179
180 void qla2x00_timer(scsi_qla_host_t *);
181
182 __inline__ void qla2x00_start_timer(scsi_qla_host_t *,
183 void *, unsigned long);
184 static __inline__ void qla2x00_restart_timer(scsi_qla_host_t *, unsigned long);
185 __inline__ void qla2x00_stop_timer(scsi_qla_host_t *);
186
187 __inline__ void
188 qla2x00_start_timer(scsi_qla_host_t *ha, void *func, unsigned long interval)
189 {
190 init_timer(&ha->timer);
191 ha->timer.expires = jiffies + interval * HZ;
192 ha->timer.data = (unsigned long)ha;
193 ha->timer.function = (void (*)(unsigned long))func;
194 add_timer(&ha->timer);
195 ha->timer_active = 1;
196 }
197
198 static inline void
199 qla2x00_restart_timer(scsi_qla_host_t *ha, unsigned long interval)
200 {
201 mod_timer(&ha->timer, jiffies + interval * HZ);
202 }
203
204 __inline__ void
205 qla2x00_stop_timer(scsi_qla_host_t *ha)
206 {
207 del_timer_sync(&ha->timer);
208 ha->timer_active = 0;
209 }
210
211 static int qla2x00_do_dpc(void *data);
212
213 static void qla2x00_rst_aen(scsi_qla_host_t *);
214
215 uint8_t qla2x00_mem_alloc(scsi_qla_host_t *);
216 void qla2x00_mem_free(scsi_qla_host_t *ha);
217 static int qla2x00_allocate_sp_pool( scsi_qla_host_t *ha);
218 static void qla2x00_free_sp_pool(scsi_qla_host_t *ha);
219 static void qla2x00_sp_free_dma(scsi_qla_host_t *, srb_t *);
220 void qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *);
221
222 /* -------------------------------------------------------------------------- */
223
224 static char *
225 qla2x00_pci_info_str(struct scsi_qla_host *ha, char *str)
226 {
227 static char *pci_bus_modes[] = {
228 "33", "66", "100", "133",
229 };
230 uint16_t pci_bus;
231
232 strcpy(str, "PCI");
233 pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
234 if (pci_bus) {
235 strcat(str, "-X (");
236 strcat(str, pci_bus_modes[pci_bus]);
237 } else {
238 pci_bus = (ha->pci_attr & BIT_8) >> 8;
239 strcat(str, " (");
240 strcat(str, pci_bus_modes[pci_bus]);
241 }
242 strcat(str, " MHz)");
243
244 return (str);
245 }
246
247 static char *
248 qla24xx_pci_info_str(struct scsi_qla_host *ha, char *str)
249 {
250 static char *pci_bus_modes[] = { "33", "66", "100", "133", };
251 uint32_t pci_bus;
252 int pcie_reg;
253
254 pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
255 if (pcie_reg) {
256 char lwstr[6];
257 uint16_t pcie_lstat, lspeed, lwidth;
258
259 pcie_reg += 0x12;
260 pci_read_config_word(ha->pdev, pcie_reg, &pcie_lstat);
261 lspeed = pcie_lstat & (BIT_0 | BIT_1 | BIT_2 | BIT_3);
262 lwidth = (pcie_lstat &
263 (BIT_4 | BIT_5 | BIT_6 | BIT_7 | BIT_8 | BIT_9)) >> 4;
264
265 strcpy(str, "PCIe (");
266 if (lspeed == 1)
267 strcat(str, "2.5Gb/s ");
268 else
269 strcat(str, "<unknown> ");
270 snprintf(lwstr, sizeof(lwstr), "x%d)", lwidth);
271 strcat(str, lwstr);
272
273 return str;
274 }
275
276 strcpy(str, "PCI");
277 pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
278 if (pci_bus == 0 || pci_bus == 8) {
279 strcat(str, " (");
280 strcat(str, pci_bus_modes[pci_bus >> 3]);
281 } else {
282 strcat(str, "-X ");
283 if (pci_bus & BIT_2)
284 strcat(str, "Mode 2");
285 else
286 strcat(str, "Mode 1");
287 strcat(str, " (");
288 strcat(str, pci_bus_modes[pci_bus & ~BIT_2]);
289 }
290 strcat(str, " MHz)");
291
292 return str;
293 }
294
295 static char *
296 qla2x00_fw_version_str(struct scsi_qla_host *ha, char *str)
297 {
298 char un_str[10];
299
300 sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
301 ha->fw_minor_version,
302 ha->fw_subminor_version);
303
304 if (ha->fw_attributes & BIT_9) {
305 strcat(str, "FLX");
306 return (str);
307 }
308
309 switch (ha->fw_attributes & 0xFF) {
310 case 0x7:
311 strcat(str, "EF");
312 break;
313 case 0x17:
314 strcat(str, "TP");
315 break;
316 case 0x37:
317 strcat(str, "IP");
318 break;
319 case 0x77:
320 strcat(str, "VI");
321 break;
322 default:
323 sprintf(un_str, "(%x)", ha->fw_attributes);
324 strcat(str, un_str);
325 break;
326 }
327 if (ha->fw_attributes & 0x100)
328 strcat(str, "X");
329
330 return (str);
331 }
332
333 static char *
334 qla24xx_fw_version_str(struct scsi_qla_host *ha, char *str)
335 {
336 sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
337 ha->fw_minor_version,
338 ha->fw_subminor_version);
339
340 if (ha->fw_attributes & BIT_0)
341 strcat(str, "[Class 2] ");
342 if (ha->fw_attributes & BIT_1)
343 strcat(str, "[IP] ");
344 if (ha->fw_attributes & BIT_2)
345 strcat(str, "[Multi-ID] ");
346 if (ha->fw_attributes & BIT_13)
347 strcat(str, "[Experimental]");
348 return str;
349 }
350
351 static inline srb_t *
352 qla2x00_get_new_sp(scsi_qla_host_t *ha, fc_port_t *fcport,
353 struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
354 {
355 srb_t *sp;
356
357 sp = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
358 if (!sp)
359 return sp;
360
361 sp->ha = ha;
362 sp->fcport = fcport;
363 sp->cmd = cmd;
364 sp->flags = 0;
365 CMD_SP(cmd) = (void *)sp;
366 cmd->scsi_done = done;
367
368 return sp;
369 }
370
371 static int
372 qla2x00_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
373 {
374 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
375 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
376 struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
377 srb_t *sp;
378 int rval;
379
380 rval = fc_remote_port_chkready(rport);
381 if (rval) {
382 cmd->result = rval;
383 goto qc_fail_command;
384 }
385
386 /* Close window on fcport/rport state-transitioning. */
387 if (!*(fc_port_t **)rport->dd_data) {
388 cmd->result = DID_IMM_RETRY << 16;
389 goto qc_fail_command;
390 }
391
392 if (atomic_read(&fcport->state) != FCS_ONLINE) {
393 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
394 atomic_read(&ha->loop_state) == LOOP_DEAD) {
395 cmd->result = DID_NO_CONNECT << 16;
396 goto qc_fail_command;
397 }
398 goto qc_host_busy;
399 }
400
401 spin_unlock_irq(ha->host->host_lock);
402
403 sp = qla2x00_get_new_sp(ha, fcport, cmd, done);
404 if (!sp)
405 goto qc_host_busy_lock;
406
407 rval = qla2x00_start_scsi(sp);
408 if (rval != QLA_SUCCESS)
409 goto qc_host_busy_free_sp;
410
411 spin_lock_irq(ha->host->host_lock);
412
413 return 0;
414
415 qc_host_busy_free_sp:
416 qla2x00_sp_free_dma(ha, sp);
417 mempool_free(sp, ha->srb_mempool);
418
419 qc_host_busy_lock:
420 spin_lock_irq(ha->host->host_lock);
421
422 qc_host_busy:
423 return SCSI_MLQUEUE_HOST_BUSY;
424
425 qc_fail_command:
426 done(cmd);
427
428 return 0;
429 }
430
431
432 static int
433 qla24xx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
434 {
435 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
436 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
437 struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
438 srb_t *sp;
439 int rval;
440 scsi_qla_host_t *pha = to_qla_parent(ha);
441
442 rval = fc_remote_port_chkready(rport);
443 if (rval) {
444 cmd->result = rval;
445 goto qc24_fail_command;
446 }
447
448 /* Close window on fcport/rport state-transitioning. */
449 if (!*(fc_port_t **)rport->dd_data) {
450 cmd->result = DID_IMM_RETRY << 16;
451 goto qc24_fail_command;
452 }
453
454 if (atomic_read(&fcport->state) != FCS_ONLINE) {
455 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
456 atomic_read(&pha->loop_state) == LOOP_DEAD) {
457 cmd->result = DID_NO_CONNECT << 16;
458 goto qc24_fail_command;
459 }
460 goto qc24_host_busy;
461 }
462
463 spin_unlock_irq(ha->host->host_lock);
464
465 sp = qla2x00_get_new_sp(pha, fcport, cmd, done);
466 if (!sp)
467 goto qc24_host_busy_lock;
468
469 rval = qla24xx_start_scsi(sp);
470 if (rval != QLA_SUCCESS)
471 goto qc24_host_busy_free_sp;
472
473 spin_lock_irq(ha->host->host_lock);
474
475 return 0;
476
477 qc24_host_busy_free_sp:
478 qla2x00_sp_free_dma(pha, sp);
479 mempool_free(sp, pha->srb_mempool);
480
481 qc24_host_busy_lock:
482 spin_lock_irq(ha->host->host_lock);
483
484 qc24_host_busy:
485 return SCSI_MLQUEUE_HOST_BUSY;
486
487 qc24_fail_command:
488 done(cmd);
489
490 return 0;
491 }
492
493
494 /*
495 * qla2x00_eh_wait_on_command
496 * Waits for the command to be returned by the Firmware for some
497 * max time.
498 *
499 * Input:
500 * ha = actual ha whose done queue will contain the command
501 * returned by firmware.
502 * cmd = Scsi Command to wait on.
503 * flag = Abort/Reset(Bus or Device Reset)
504 *
505 * Return:
506 * Not Found : 0
507 * Found : 1
508 */
509 static int
510 qla2x00_eh_wait_on_command(scsi_qla_host_t *ha, struct scsi_cmnd *cmd)
511 {
512 #define ABORT_POLLING_PERIOD 1000
513 #define ABORT_WAIT_ITER ((10 * 1000) / (ABORT_POLLING_PERIOD))
514 unsigned long wait_iter = ABORT_WAIT_ITER;
515 int ret = QLA_SUCCESS;
516
517 while (CMD_SP(cmd)) {
518 msleep(ABORT_POLLING_PERIOD);
519
520 if (--wait_iter)
521 break;
522 }
523 if (CMD_SP(cmd))
524 ret = QLA_FUNCTION_FAILED;
525
526 return ret;
527 }
528
529 /*
530 * qla2x00_wait_for_hba_online
531 * Wait till the HBA is online after going through
532 * <= MAX_RETRIES_OF_ISP_ABORT or
533 * finally HBA is disabled ie marked offline
534 *
535 * Input:
536 * ha - pointer to host adapter structure
537 *
538 * Note:
539 * Does context switching-Release SPIN_LOCK
540 * (if any) before calling this routine.
541 *
542 * Return:
543 * Success (Adapter is online) : 0
544 * Failed (Adapter is offline/disabled) : 1
545 */
546 int
547 qla2x00_wait_for_hba_online(scsi_qla_host_t *ha)
548 {
549 int return_status;
550 unsigned long wait_online;
551 scsi_qla_host_t *pha = to_qla_parent(ha);
552
553 wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
554 while (((test_bit(ISP_ABORT_NEEDED, &pha->dpc_flags)) ||
555 test_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags) ||
556 test_bit(ISP_ABORT_RETRY, &pha->dpc_flags) ||
557 pha->dpc_active) && time_before(jiffies, wait_online)) {
558
559 msleep(1000);
560 }
561 if (pha->flags.online)
562 return_status = QLA_SUCCESS;
563 else
564 return_status = QLA_FUNCTION_FAILED;
565
566 DEBUG2(printk("%s return_status=%d\n",__func__,return_status));
567
568 return (return_status);
569 }
570
571 /*
572 * qla2x00_wait_for_loop_ready
573 * Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
574 * to be in LOOP_READY state.
575 * Input:
576 * ha - pointer to host adapter structure
577 *
578 * Note:
579 * Does context switching-Release SPIN_LOCK
580 * (if any) before calling this routine.
581 *
582 *
583 * Return:
584 * Success (LOOP_READY) : 0
585 * Failed (LOOP_NOT_READY) : 1
586 */
587 static inline int
588 qla2x00_wait_for_loop_ready(scsi_qla_host_t *ha)
589 {
590 int return_status = QLA_SUCCESS;
591 unsigned long loop_timeout ;
592 scsi_qla_host_t *pha = to_qla_parent(ha);
593
594 /* wait for 5 min at the max for loop to be ready */
595 loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ);
596
597 while ((!atomic_read(&pha->loop_down_timer) &&
598 atomic_read(&pha->loop_state) == LOOP_DOWN) ||
599 atomic_read(&pha->loop_state) != LOOP_READY) {
600 if (atomic_read(&pha->loop_state) == LOOP_DEAD) {
601 return_status = QLA_FUNCTION_FAILED;
602 break;
603 }
604 msleep(1000);
605 if (time_after_eq(jiffies, loop_timeout)) {
606 return_status = QLA_FUNCTION_FAILED;
607 break;
608 }
609 }
610 return (return_status);
611 }
612
613 static void
614 qla2x00_block_error_handler(struct scsi_cmnd *cmnd)
615 {
616 struct Scsi_Host *shost = cmnd->device->host;
617 struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device));
618 unsigned long flags;
619
620 spin_lock_irqsave(shost->host_lock, flags);
621 while (rport->port_state == FC_PORTSTATE_BLOCKED) {
622 spin_unlock_irqrestore(shost->host_lock, flags);
623 msleep(1000);
624 spin_lock_irqsave(shost->host_lock, flags);
625 }
626 spin_unlock_irqrestore(shost->host_lock, flags);
627 return;
628 }
629
630 /**************************************************************************
631 * qla2xxx_eh_abort
632 *
633 * Description:
634 * The abort function will abort the specified command.
635 *
636 * Input:
637 * cmd = Linux SCSI command packet to be aborted.
638 *
639 * Returns:
640 * Either SUCCESS or FAILED.
641 *
642 * Note:
643 * Only return FAILED if command not returned by firmware.
644 **************************************************************************/
645 static int
646 qla2xxx_eh_abort(struct scsi_cmnd *cmd)
647 {
648 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
649 srb_t *sp;
650 int ret, i;
651 unsigned int id, lun;
652 unsigned long serial;
653 unsigned long flags;
654 int wait = 0;
655 scsi_qla_host_t *pha = to_qla_parent(ha);
656
657 qla2x00_block_error_handler(cmd);
658
659 if (!CMD_SP(cmd))
660 return SUCCESS;
661
662 ret = SUCCESS;
663
664 id = cmd->device->id;
665 lun = cmd->device->lun;
666 serial = cmd->serial_number;
667
668 /* Check active list for command command. */
669 spin_lock_irqsave(&pha->hardware_lock, flags);
670 for (i = 1; i < MAX_OUTSTANDING_COMMANDS; i++) {
671 sp = pha->outstanding_cmds[i];
672
673 if (sp == NULL)
674 continue;
675
676 if (sp->cmd != cmd)
677 continue;
678
679 DEBUG2(printk("%s(%ld): aborting sp %p from RISC. pid=%ld.\n",
680 __func__, ha->host_no, sp, serial));
681 DEBUG3(qla2x00_print_scsi_cmd(cmd));
682
683 spin_unlock_irqrestore(&pha->hardware_lock, flags);
684 if (ha->isp_ops.abort_command(ha, sp)) {
685 DEBUG2(printk("%s(%ld): abort_command "
686 "mbx failed.\n", __func__, ha->host_no));
687 } else {
688 DEBUG3(printk("%s(%ld): abort_command "
689 "mbx success.\n", __func__, ha->host_no));
690 wait = 1;
691 }
692 spin_lock_irqsave(&pha->hardware_lock, flags);
693
694 break;
695 }
696 spin_unlock_irqrestore(&pha->hardware_lock, flags);
697
698 /* Wait for the command to be returned. */
699 if (wait) {
700 if (qla2x00_eh_wait_on_command(ha, cmd) != QLA_SUCCESS) {
701 qla_printk(KERN_ERR, ha,
702 "scsi(%ld:%d:%d): Abort handler timed out -- %lx "
703 "%x.\n", ha->host_no, id, lun, serial, ret);
704 ret = FAILED;
705 }
706 }
707
708 qla_printk(KERN_INFO, ha,
709 "scsi(%ld:%d:%d): Abort command issued -- %d %lx %x.\n",
710 ha->host_no, id, lun, wait, serial, ret);
711
712 return ret;
713 }
714
715 /**************************************************************************
716 * qla2x00_eh_wait_for_pending_target_commands
717 *
718 * Description:
719 * Waits for all the commands to come back from the specified target.
720 *
721 * Input:
722 * ha - pointer to scsi_qla_host structure.
723 * t - target
724 * Returns:
725 * Either SUCCESS or FAILED.
726 *
727 * Note:
728 **************************************************************************/
729 static int
730 qla2x00_eh_wait_for_pending_target_commands(scsi_qla_host_t *ha, unsigned int t)
731 {
732 int cnt;
733 int status;
734 srb_t *sp;
735 struct scsi_cmnd *cmd;
736 unsigned long flags;
737 scsi_qla_host_t *pha = to_qla_parent(ha);
738
739 status = 0;
740
741 /*
742 * Waiting for all commands for the designated target in the active
743 * array
744 */
745 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
746 spin_lock_irqsave(&pha->hardware_lock, flags);
747 sp = pha->outstanding_cmds[cnt];
748 if (sp) {
749 cmd = sp->cmd;
750 spin_unlock_irqrestore(&pha->hardware_lock, flags);
751 if (cmd->device->id == t &&
752 ha->vp_idx == sp->ha->vp_idx) {
753 if (!qla2x00_eh_wait_on_command(ha, cmd)) {
754 status = 1;
755 break;
756 }
757 }
758 } else {
759 spin_unlock_irqrestore(&pha->hardware_lock, flags);
760 }
761 }
762 return (status);
763 }
764
765
766 /**************************************************************************
767 * qla2xxx_eh_device_reset
768 *
769 * Description:
770 * The device reset function will reset the target and abort any
771 * executing commands.
772 *
773 * NOTE: The use of SP is undefined within this context. Do *NOT*
774 * attempt to use this value, even if you determine it is
775 * non-null.
776 *
777 * Input:
778 * cmd = Linux SCSI command packet of the command that cause the
779 * bus device reset.
780 *
781 * Returns:
782 * SUCCESS/FAILURE (defined as macro in scsi.h).
783 *
784 **************************************************************************/
785 static int
786 qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
787 {
788 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
789 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
790 int ret = FAILED;
791 unsigned int id, lun;
792 unsigned long serial;
793
794 qla2x00_block_error_handler(cmd);
795
796 id = cmd->device->id;
797 lun = cmd->device->lun;
798 serial = cmd->serial_number;
799
800 if (!fcport)
801 return ret;
802
803 qla_printk(KERN_INFO, ha,
804 "scsi(%ld:%d:%d): DEVICE RESET ISSUED.\n", ha->host_no, id, lun);
805
806 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
807 goto eh_dev_reset_done;
808
809 if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
810 if (qla2x00_device_reset(ha, fcport) == 0)
811 ret = SUCCESS;
812
813 #if defined(LOGOUT_AFTER_DEVICE_RESET)
814 if (ret == SUCCESS) {
815 if (fcport->flags & FC_FABRIC_DEVICE) {
816 ha->isp_ops.fabric_logout(ha, fcport->loop_id);
817 qla2x00_mark_device_lost(ha, fcport, 0, 0);
818 }
819 }
820 #endif
821 } else {
822 DEBUG2(printk(KERN_INFO
823 "%s failed: loop not ready\n",__func__));
824 }
825
826 if (ret == FAILED) {
827 DEBUG3(printk("%s(%ld): device reset failed\n",
828 __func__, ha->host_no));
829 qla_printk(KERN_INFO, ha, "%s: device reset failed\n",
830 __func__);
831
832 goto eh_dev_reset_done;
833 }
834
835 /* Flush outstanding commands. */
836 if (qla2x00_eh_wait_for_pending_target_commands(ha, id))
837 ret = FAILED;
838 if (ret == FAILED) {
839 DEBUG3(printk("%s(%ld): failed while waiting for commands\n",
840 __func__, ha->host_no));
841 qla_printk(KERN_INFO, ha,
842 "%s: failed while waiting for commands\n", __func__);
843 } else
844 qla_printk(KERN_INFO, ha,
845 "scsi(%ld:%d:%d): DEVICE RESET SUCCEEDED.\n", ha->host_no,
846 id, lun);
847 eh_dev_reset_done:
848 return ret;
849 }
850
851 /**************************************************************************
852 * qla2x00_eh_wait_for_pending_commands
853 *
854 * Description:
855 * Waits for all the commands to come back from the specified host.
856 *
857 * Input:
858 * ha - pointer to scsi_qla_host structure.
859 *
860 * Returns:
861 * 1 : SUCCESS
862 * 0 : FAILED
863 *
864 * Note:
865 **************************************************************************/
866 static int
867 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *ha)
868 {
869 int cnt;
870 int status;
871 srb_t *sp;
872 struct scsi_cmnd *cmd;
873 unsigned long flags;
874
875 status = 1;
876
877 /*
878 * Waiting for all commands for the designated target in the active
879 * array
880 */
881 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
882 spin_lock_irqsave(&ha->hardware_lock, flags);
883 sp = ha->outstanding_cmds[cnt];
884 if (sp) {
885 cmd = sp->cmd;
886 spin_unlock_irqrestore(&ha->hardware_lock, flags);
887 status = qla2x00_eh_wait_on_command(ha, cmd);
888 if (status == 0)
889 break;
890 }
891 else {
892 spin_unlock_irqrestore(&ha->hardware_lock, flags);
893 }
894 }
895 return (status);
896 }
897
898
899 /**************************************************************************
900 * qla2xxx_eh_bus_reset
901 *
902 * Description:
903 * The bus reset function will reset the bus and abort any executing
904 * commands.
905 *
906 * Input:
907 * cmd = Linux SCSI command packet of the command that cause the
908 * bus reset.
909 *
910 * Returns:
911 * SUCCESS/FAILURE (defined as macro in scsi.h).
912 *
913 **************************************************************************/
914 static int
915 qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
916 {
917 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
918 scsi_qla_host_t *pha = to_qla_parent(ha);
919 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
920 int ret = FAILED;
921 unsigned int id, lun;
922 unsigned long serial;
923
924 qla2x00_block_error_handler(cmd);
925
926 id = cmd->device->id;
927 lun = cmd->device->lun;
928 serial = cmd->serial_number;
929
930 if (!fcport)
931 return ret;
932
933 qla_printk(KERN_INFO, ha,
934 "scsi(%ld:%d:%d): LOOP RESET ISSUED.\n", ha->host_no, id, lun);
935
936 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS) {
937 DEBUG2(printk("%s failed:board disabled\n",__func__));
938 goto eh_bus_reset_done;
939 }
940
941 if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
942 if (qla2x00_loop_reset(ha) == QLA_SUCCESS)
943 ret = SUCCESS;
944 }
945 if (ret == FAILED)
946 goto eh_bus_reset_done;
947
948 /* Flush outstanding commands. */
949 if (!qla2x00_eh_wait_for_pending_commands(pha))
950 ret = FAILED;
951
952 eh_bus_reset_done:
953 qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
954 (ret == FAILED) ? "failed" : "succeded");
955
956 return ret;
957 }
958
959 /**************************************************************************
960 * qla2xxx_eh_host_reset
961 *
962 * Description:
963 * The reset function will reset the Adapter.
964 *
965 * Input:
966 * cmd = Linux SCSI command packet of the command that cause the
967 * adapter reset.
968 *
969 * Returns:
970 * Either SUCCESS or FAILED.
971 *
972 * Note:
973 **************************************************************************/
974 static int
975 qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
976 {
977 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
978 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
979 int ret = FAILED;
980 unsigned int id, lun;
981 unsigned long serial;
982 scsi_qla_host_t *pha = to_qla_parent(ha);
983
984 qla2x00_block_error_handler(cmd);
985
986 id = cmd->device->id;
987 lun = cmd->device->lun;
988 serial = cmd->serial_number;
989
990 if (!fcport)
991 return ret;
992
993 qla_printk(KERN_INFO, ha,
994 "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", ha->host_no, id, lun);
995
996 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
997 goto eh_host_reset_lock;
998
999 /*
1000 * Fixme-may be dpc thread is active and processing
1001 * loop_resync,so wait a while for it to
1002 * be completed and then issue big hammer.Otherwise
1003 * it may cause I/O failure as big hammer marks the
1004 * devices as lost kicking of the port_down_timer
1005 * while dpc is stuck for the mailbox to complete.
1006 */
1007 qla2x00_wait_for_loop_ready(ha);
1008 set_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags);
1009 if (qla2x00_abort_isp(pha)) {
1010 clear_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags);
1011 /* failed. schedule dpc to try */
1012 set_bit(ISP_ABORT_NEEDED, &pha->dpc_flags);
1013
1014 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
1015 goto eh_host_reset_lock;
1016 }
1017 clear_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags);
1018
1019 /* Waiting for our command in done_queue to be returned to OS.*/
1020 if (qla2x00_eh_wait_for_pending_commands(pha))
1021 ret = SUCCESS;
1022
1023 if (ha->parent)
1024 qla2x00_vp_abort_isp(ha);
1025
1026 eh_host_reset_lock:
1027 qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
1028 (ret == FAILED) ? "failed" : "succeded");
1029
1030 return ret;
1031 }
1032
1033 /*
1034 * qla2x00_loop_reset
1035 * Issue loop reset.
1036 *
1037 * Input:
1038 * ha = adapter block pointer.
1039 *
1040 * Returns:
1041 * 0 = success
1042 */
1043 static int
1044 qla2x00_loop_reset(scsi_qla_host_t *ha)
1045 {
1046 int ret;
1047 struct fc_port *fcport;
1048
1049 if (ha->flags.enable_lip_full_login) {
1050 ret = qla2x00_full_login_lip(ha);
1051 if (ret != QLA_SUCCESS) {
1052 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1053 "full_login_lip=%d.\n", __func__, ha->host_no,
1054 ret));
1055 }
1056 atomic_set(&ha->loop_state, LOOP_DOWN);
1057 atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
1058 qla2x00_mark_all_devices_lost(ha, 0);
1059 qla2x00_wait_for_loop_ready(ha);
1060 }
1061
1062 if (ha->flags.enable_lip_reset) {
1063 ret = qla2x00_lip_reset(ha);
1064 if (ret != QLA_SUCCESS) {
1065 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1066 "lip_reset=%d.\n", __func__, ha->host_no, ret));
1067 }
1068 qla2x00_wait_for_loop_ready(ha);
1069 }
1070
1071 if (ha->flags.enable_target_reset) {
1072 list_for_each_entry(fcport, &ha->fcports, list) {
1073 if (fcport->port_type != FCT_TARGET)
1074 continue;
1075
1076 ret = qla2x00_device_reset(ha, fcport);
1077 if (ret != QLA_SUCCESS) {
1078 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1079 "target_reset=%d d_id=%x.\n", __func__,
1080 ha->host_no, ret, fcport->d_id.b24));
1081 }
1082 }
1083 }
1084
1085 /* Issue marker command only when we are going to start the I/O */
1086 ha->marker_needed = 1;
1087
1088 return QLA_SUCCESS;
1089 }
1090
1091 /*
1092 * qla2x00_device_reset
1093 * Issue bus device reset message to the target.
1094 *
1095 * Input:
1096 * ha = adapter block pointer.
1097 * t = SCSI ID.
1098 * TARGET_QUEUE_LOCK must be released.
1099 * ADAPTER_STATE_LOCK must be released.
1100 *
1101 * Context:
1102 * Kernel context.
1103 */
1104 static int
1105 qla2x00_device_reset(scsi_qla_host_t *ha, fc_port_t *reset_fcport)
1106 {
1107 /* Abort Target command will clear Reservation */
1108 return ha->isp_ops.abort_target(reset_fcport);
1109 }
1110
1111 static int
1112 qla2xxx_slave_alloc(struct scsi_device *sdev)
1113 {
1114 struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1115
1116 if (!rport || fc_remote_port_chkready(rport))
1117 return -ENXIO;
1118
1119 sdev->hostdata = *(fc_port_t **)rport->dd_data;
1120
1121 return 0;
1122 }
1123
1124 static int
1125 qla2xxx_slave_configure(struct scsi_device *sdev)
1126 {
1127 scsi_qla_host_t *ha = to_qla_host(sdev->host);
1128 struct fc_rport *rport = starget_to_rport(sdev->sdev_target);
1129
1130 if (sdev->tagged_supported)
1131 scsi_activate_tcq(sdev, ha->max_q_depth);
1132 else
1133 scsi_deactivate_tcq(sdev, ha->max_q_depth);
1134
1135 rport->dev_loss_tmo = ha->port_down_retry_count + 5;
1136
1137 return 0;
1138 }
1139
1140 static void
1141 qla2xxx_slave_destroy(struct scsi_device *sdev)
1142 {
1143 sdev->hostdata = NULL;
1144 }
1145
1146 static int
1147 qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth)
1148 {
1149 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1150 return sdev->queue_depth;
1151 }
1152
1153 static int
1154 qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1155 {
1156 if (sdev->tagged_supported) {
1157 scsi_set_tag_type(sdev, tag_type);
1158 if (tag_type)
1159 scsi_activate_tcq(sdev, sdev->queue_depth);
1160 else
1161 scsi_deactivate_tcq(sdev, sdev->queue_depth);
1162 } else
1163 tag_type = 0;
1164
1165 return tag_type;
1166 }
1167
1168 /**
1169 * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1170 * @ha: HA context
1171 *
1172 * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1173 * supported addressing method.
1174 */
1175 static void
1176 qla2x00_config_dma_addressing(scsi_qla_host_t *ha)
1177 {
1178 /* Assume a 32bit DMA mask. */
1179 ha->flags.enable_64bit_addressing = 0;
1180
1181 if (!dma_set_mask(&ha->pdev->dev, DMA_64BIT_MASK)) {
1182 /* Any upper-dword bits set? */
1183 if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1184 !pci_set_consistent_dma_mask(ha->pdev, DMA_64BIT_MASK)) {
1185 /* Ok, a 64bit DMA mask is applicable. */
1186 ha->flags.enable_64bit_addressing = 1;
1187 ha->isp_ops.calc_req_entries = qla2x00_calc_iocbs_64;
1188 ha->isp_ops.build_iocbs = qla2x00_build_scsi_iocbs_64;
1189 return;
1190 }
1191 }
1192
1193 dma_set_mask(&ha->pdev->dev, DMA_32BIT_MASK);
1194 pci_set_consistent_dma_mask(ha->pdev, DMA_32BIT_MASK);
1195 }
1196
1197 static inline void
1198 qla2x00_set_isp_flags(scsi_qla_host_t *ha)
1199 {
1200 ha->device_type = DT_EXTENDED_IDS;
1201 switch (ha->pdev->device) {
1202 case PCI_DEVICE_ID_QLOGIC_ISP2100:
1203 ha->device_type |= DT_ISP2100;
1204 ha->device_type &= ~DT_EXTENDED_IDS;
1205 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1206 break;
1207 case PCI_DEVICE_ID_QLOGIC_ISP2200:
1208 ha->device_type |= DT_ISP2200;
1209 ha->device_type &= ~DT_EXTENDED_IDS;
1210 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1211 break;
1212 case PCI_DEVICE_ID_QLOGIC_ISP2300:
1213 ha->device_type |= DT_ISP2300;
1214 ha->device_type |= DT_ZIO_SUPPORTED;
1215 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1216 break;
1217 case PCI_DEVICE_ID_QLOGIC_ISP2312:
1218 ha->device_type |= DT_ISP2312;
1219 ha->device_type |= DT_ZIO_SUPPORTED;
1220 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1221 break;
1222 case PCI_DEVICE_ID_QLOGIC_ISP2322:
1223 ha->device_type |= DT_ISP2322;
1224 ha->device_type |= DT_ZIO_SUPPORTED;
1225 if (ha->pdev->subsystem_vendor == 0x1028 &&
1226 ha->pdev->subsystem_device == 0x0170)
1227 ha->device_type |= DT_OEM_001;
1228 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1229 break;
1230 case PCI_DEVICE_ID_QLOGIC_ISP6312:
1231 ha->device_type |= DT_ISP6312;
1232 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1233 break;
1234 case PCI_DEVICE_ID_QLOGIC_ISP6322:
1235 ha->device_type |= DT_ISP6322;
1236 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1237 break;
1238 case PCI_DEVICE_ID_QLOGIC_ISP2422:
1239 ha->device_type |= DT_ISP2422;
1240 ha->device_type |= DT_ZIO_SUPPORTED;
1241 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1242 break;
1243 case PCI_DEVICE_ID_QLOGIC_ISP2432:
1244 ha->device_type |= DT_ISP2432;
1245 ha->device_type |= DT_ZIO_SUPPORTED;
1246 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1247 break;
1248 case PCI_DEVICE_ID_QLOGIC_ISP5422:
1249 ha->device_type |= DT_ISP5422;
1250 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1251 break;
1252 case PCI_DEVICE_ID_QLOGIC_ISP5432:
1253 ha->device_type |= DT_ISP5432;
1254 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1255 break;
1256 }
1257 }
1258
1259 static int
1260 qla2x00_iospace_config(scsi_qla_host_t *ha)
1261 {
1262 unsigned long pio, pio_len, pio_flags;
1263 unsigned long mmio, mmio_len, mmio_flags;
1264
1265 /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1266 pio = pci_resource_start(ha->pdev, 0);
1267 pio_len = pci_resource_len(ha->pdev, 0);
1268 pio_flags = pci_resource_flags(ha->pdev, 0);
1269 if (pio_flags & IORESOURCE_IO) {
1270 if (pio_len < MIN_IOBASE_LEN) {
1271 qla_printk(KERN_WARNING, ha,
1272 "Invalid PCI I/O region size (%s)...\n",
1273 pci_name(ha->pdev));
1274 pio = 0;
1275 }
1276 } else {
1277 qla_printk(KERN_WARNING, ha,
1278 "region #0 not a PIO resource (%s)...\n",
1279 pci_name(ha->pdev));
1280 pio = 0;
1281 }
1282
1283 /* Use MMIO operations for all accesses. */
1284 mmio = pci_resource_start(ha->pdev, 1);
1285 mmio_len = pci_resource_len(ha->pdev, 1);
1286 mmio_flags = pci_resource_flags(ha->pdev, 1);
1287
1288 if (!(mmio_flags & IORESOURCE_MEM)) {
1289 qla_printk(KERN_ERR, ha,
1290 "region #0 not an MMIO resource (%s), aborting\n",
1291 pci_name(ha->pdev));
1292 goto iospace_error_exit;
1293 }
1294 if (mmio_len < MIN_IOBASE_LEN) {
1295 qla_printk(KERN_ERR, ha,
1296 "Invalid PCI mem region size (%s), aborting\n",
1297 pci_name(ha->pdev));
1298 goto iospace_error_exit;
1299 }
1300
1301 if (pci_request_regions(ha->pdev, QLA2XXX_DRIVER_NAME)) {
1302 qla_printk(KERN_WARNING, ha,
1303 "Failed to reserve PIO/MMIO regions (%s)\n",
1304 pci_name(ha->pdev));
1305
1306 goto iospace_error_exit;
1307 }
1308
1309 ha->pio_address = pio;
1310 ha->pio_length = pio_len;
1311 ha->iobase = ioremap(mmio, MIN_IOBASE_LEN);
1312 if (!ha->iobase) {
1313 qla_printk(KERN_ERR, ha,
1314 "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
1315
1316 goto iospace_error_exit;
1317 }
1318
1319 return (0);
1320
1321 iospace_error_exit:
1322 return (-ENOMEM);
1323 }
1324
1325 static void
1326 qla2x00_enable_intrs(scsi_qla_host_t *ha)
1327 {
1328 unsigned long flags = 0;
1329 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1330
1331 spin_lock_irqsave(&ha->hardware_lock, flags);
1332 ha->interrupts_on = 1;
1333 /* enable risc and host interrupts */
1334 WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1335 RD_REG_WORD(&reg->ictrl);
1336 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1337
1338 }
1339
1340 static void
1341 qla2x00_disable_intrs(scsi_qla_host_t *ha)
1342 {
1343 unsigned long flags = 0;
1344 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1345
1346 spin_lock_irqsave(&ha->hardware_lock, flags);
1347 ha->interrupts_on = 0;
1348 /* disable risc and host interrupts */
1349 WRT_REG_WORD(&reg->ictrl, 0);
1350 RD_REG_WORD(&reg->ictrl);
1351 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1352 }
1353
1354 static void
1355 qla24xx_enable_intrs(scsi_qla_host_t *ha)
1356 {
1357 unsigned long flags = 0;
1358 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1359
1360 spin_lock_irqsave(&ha->hardware_lock, flags);
1361 ha->interrupts_on = 1;
1362 WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1363 RD_REG_DWORD(&reg->ictrl);
1364 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1365 }
1366
1367 static void
1368 qla24xx_disable_intrs(scsi_qla_host_t *ha)
1369 {
1370 unsigned long flags = 0;
1371 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1372
1373 spin_lock_irqsave(&ha->hardware_lock, flags);
1374 ha->interrupts_on = 0;
1375 WRT_REG_DWORD(&reg->ictrl, 0);
1376 RD_REG_DWORD(&reg->ictrl);
1377 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1378 }
1379
1380 static void
1381 qla2xxx_scan_start(struct Scsi_Host *shost)
1382 {
1383 scsi_qla_host_t *ha = (scsi_qla_host_t *)shost->hostdata;
1384
1385 set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
1386 set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
1387 set_bit(RSCN_UPDATE, &ha->dpc_flags);
1388 }
1389
1390 static int
1391 qla2xxx_scan_finished(struct Scsi_Host *shost, unsigned long time)
1392 {
1393 scsi_qla_host_t *ha = (scsi_qla_host_t *)shost->hostdata;
1394
1395 if (!ha->host)
1396 return 1;
1397 if (time > ha->loop_reset_delay * HZ)
1398 return 1;
1399
1400 return atomic_read(&ha->loop_state) == LOOP_READY;
1401 }
1402
1403 /*
1404 * PCI driver interface
1405 */
1406 static int __devinit
1407 qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
1408 {
1409 int ret = -ENODEV;
1410 device_reg_t __iomem *reg;
1411 struct Scsi_Host *host;
1412 scsi_qla_host_t *ha;
1413 unsigned long flags = 0;
1414 char pci_info[20];
1415 char fw_str[30];
1416 struct scsi_host_template *sht;
1417
1418 if (pci_enable_device(pdev))
1419 goto probe_out;
1420
1421 sht = &qla2x00_driver_template;
1422 if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
1423 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432 ||
1424 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5422 ||
1425 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5432)
1426 sht = &qla24xx_driver_template;
1427 host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
1428 if (host == NULL) {
1429 printk(KERN_WARNING
1430 "qla2xxx: Couldn't allocate host from scsi layer!\n");
1431 goto probe_disable_device;
1432 }
1433
1434 /* Clear our data area */
1435 ha = (scsi_qla_host_t *)host->hostdata;
1436 memset(ha, 0, sizeof(scsi_qla_host_t));
1437
1438 ha->pdev = pdev;
1439 ha->host = host;
1440 ha->host_no = host->host_no;
1441 sprintf(ha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, ha->host_no);
1442 ha->parent = NULL;
1443
1444 /* Set ISP-type information. */
1445 qla2x00_set_isp_flags(ha);
1446
1447 /* Configure PCI I/O space */
1448 ret = qla2x00_iospace_config(ha);
1449 if (ret)
1450 goto probe_failed;
1451
1452 qla_printk(KERN_INFO, ha,
1453 "Found an ISP%04X, irq %d, iobase 0x%p\n", pdev->device, pdev->irq,
1454 ha->iobase);
1455
1456 spin_lock_init(&ha->hardware_lock);
1457
1458 ha->prev_topology = 0;
1459 ha->init_cb_size = sizeof(init_cb_t);
1460 ha->mgmt_svr_loop_id = MANAGEMENT_SERVER + ha->vp_idx;
1461 ha->link_data_rate = PORT_SPEED_UNKNOWN;
1462 ha->optrom_size = OPTROM_SIZE_2300;
1463
1464 ha->max_q_depth = MAX_Q_DEPTH;
1465 if (ql2xmaxqdepth != 0 && ql2xmaxqdepth <= 0xffffU)
1466 ha->max_q_depth = ql2xmaxqdepth;
1467
1468 /* Assign ISP specific operations. */
1469 ha->isp_ops.pci_config = qla2100_pci_config;
1470 ha->isp_ops.reset_chip = qla2x00_reset_chip;
1471 ha->isp_ops.chip_diag = qla2x00_chip_diag;
1472 ha->isp_ops.config_rings = qla2x00_config_rings;
1473 ha->isp_ops.reset_adapter = qla2x00_reset_adapter;
1474 ha->isp_ops.nvram_config = qla2x00_nvram_config;
1475 ha->isp_ops.update_fw_options = qla2x00_update_fw_options;
1476 ha->isp_ops.load_risc = qla2x00_load_risc;
1477 ha->isp_ops.pci_info_str = qla2x00_pci_info_str;
1478 ha->isp_ops.fw_version_str = qla2x00_fw_version_str;
1479 ha->isp_ops.intr_handler = qla2100_intr_handler;
1480 ha->isp_ops.enable_intrs = qla2x00_enable_intrs;
1481 ha->isp_ops.disable_intrs = qla2x00_disable_intrs;
1482 ha->isp_ops.abort_command = qla2x00_abort_command;
1483 ha->isp_ops.abort_target = qla2x00_abort_target;
1484 ha->isp_ops.fabric_login = qla2x00_login_fabric;
1485 ha->isp_ops.fabric_logout = qla2x00_fabric_logout;
1486 ha->isp_ops.calc_req_entries = qla2x00_calc_iocbs_32;
1487 ha->isp_ops.build_iocbs = qla2x00_build_scsi_iocbs_32;
1488 ha->isp_ops.prep_ms_iocb = qla2x00_prep_ms_iocb;
1489 ha->isp_ops.prep_ms_fdmi_iocb = qla2x00_prep_ms_fdmi_iocb;
1490 ha->isp_ops.read_nvram = qla2x00_read_nvram_data;
1491 ha->isp_ops.write_nvram = qla2x00_write_nvram_data;
1492 ha->isp_ops.fw_dump = qla2100_fw_dump;
1493 ha->isp_ops.read_optrom = qla2x00_read_optrom_data;
1494 ha->isp_ops.write_optrom = qla2x00_write_optrom_data;
1495 ha->isp_ops.get_flash_version = qla2x00_get_flash_version;
1496 if (IS_QLA2100(ha)) {
1497 host->max_id = MAX_TARGETS_2100;
1498 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
1499 ha->request_q_length = REQUEST_ENTRY_CNT_2100;
1500 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1501 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1502 host->sg_tablesize = 32;
1503 ha->gid_list_info_size = 4;
1504 } else if (IS_QLA2200(ha)) {
1505 host->max_id = MAX_TARGETS_2200;
1506 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1507 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1508 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1509 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1510 ha->gid_list_info_size = 4;
1511 } else if (IS_QLA23XX(ha)) {
1512 host->max_id = MAX_TARGETS_2200;
1513 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1514 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1515 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1516 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1517 ha->isp_ops.pci_config = qla2300_pci_config;
1518 ha->isp_ops.intr_handler = qla2300_intr_handler;
1519 ha->isp_ops.fw_dump = qla2300_fw_dump;
1520 ha->isp_ops.beacon_on = qla2x00_beacon_on;
1521 ha->isp_ops.beacon_off = qla2x00_beacon_off;
1522 ha->isp_ops.beacon_blink = qla2x00_beacon_blink;
1523 ha->gid_list_info_size = 6;
1524 if (IS_QLA2322(ha) || IS_QLA6322(ha))
1525 ha->optrom_size = OPTROM_SIZE_2322;
1526 } else if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
1527 host->max_id = MAX_TARGETS_2200;
1528 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1529 ha->request_q_length = REQUEST_ENTRY_CNT_24XX;
1530 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1531 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1532 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
1533 ha->mgmt_svr_loop_id = 10 + ha->vp_idx;
1534 ha->isp_ops.pci_config = qla24xx_pci_config;
1535 ha->isp_ops.reset_chip = qla24xx_reset_chip;
1536 ha->isp_ops.chip_diag = qla24xx_chip_diag;
1537 ha->isp_ops.config_rings = qla24xx_config_rings;
1538 ha->isp_ops.reset_adapter = qla24xx_reset_adapter;
1539 ha->isp_ops.nvram_config = qla24xx_nvram_config;
1540 ha->isp_ops.update_fw_options = qla24xx_update_fw_options;
1541 ha->isp_ops.load_risc = qla24xx_load_risc;
1542 ha->isp_ops.pci_info_str = qla24xx_pci_info_str;
1543 ha->isp_ops.fw_version_str = qla24xx_fw_version_str;
1544 ha->isp_ops.intr_handler = qla24xx_intr_handler;
1545 ha->isp_ops.enable_intrs = qla24xx_enable_intrs;
1546 ha->isp_ops.disable_intrs = qla24xx_disable_intrs;
1547 ha->isp_ops.abort_command = qla24xx_abort_command;
1548 ha->isp_ops.abort_target = qla24xx_abort_target;
1549 ha->isp_ops.fabric_login = qla24xx_login_fabric;
1550 ha->isp_ops.fabric_logout = qla24xx_fabric_logout;
1551 ha->isp_ops.prep_ms_iocb = qla24xx_prep_ms_iocb;
1552 ha->isp_ops.prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb;
1553 ha->isp_ops.read_nvram = qla24xx_read_nvram_data;
1554 ha->isp_ops.write_nvram = qla24xx_write_nvram_data;
1555 ha->isp_ops.fw_dump = qla24xx_fw_dump;
1556 ha->isp_ops.read_optrom = qla24xx_read_optrom_data;
1557 ha->isp_ops.write_optrom = qla24xx_write_optrom_data;
1558 ha->isp_ops.beacon_on = qla24xx_beacon_on;
1559 ha->isp_ops.beacon_off = qla24xx_beacon_off;
1560 ha->isp_ops.beacon_blink = qla24xx_beacon_blink;
1561 ha->isp_ops.get_flash_version = qla24xx_get_flash_version;
1562 ha->gid_list_info_size = 8;
1563 ha->optrom_size = OPTROM_SIZE_24XX;
1564 }
1565 host->can_queue = ha->request_q_length + 128;
1566
1567 /* load the F/W, read paramaters, and init the H/W */
1568 ha->instance = num_hosts;
1569
1570 init_MUTEX(&ha->mbx_cmd_sem);
1571 init_MUTEX(&ha->vport_sem);
1572 init_MUTEX_LOCKED(&ha->mbx_intr_sem);
1573
1574 INIT_LIST_HEAD(&ha->list);
1575 INIT_LIST_HEAD(&ha->fcports);
1576 INIT_LIST_HEAD(&ha->vp_list);
1577
1578 set_bit(0, (unsigned long *) ha->vp_idx_map);
1579
1580 qla2x00_config_dma_addressing(ha);
1581 if (qla2x00_mem_alloc(ha)) {
1582 qla_printk(KERN_WARNING, ha,
1583 "[ERROR] Failed to allocate memory for adapter\n");
1584
1585 ret = -ENOMEM;
1586 goto probe_failed;
1587 }
1588
1589 if (qla2x00_initialize_adapter(ha)) {
1590 qla_printk(KERN_WARNING, ha,
1591 "Failed to initialize adapter\n");
1592
1593 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
1594 "Adapter flags %x.\n",
1595 ha->host_no, ha->device_flags));
1596
1597 ret = -ENODEV;
1598 goto probe_failed;
1599 }
1600
1601 /*
1602 * Startup the kernel thread for this host adapter
1603 */
1604 ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
1605 "%s_dpc", ha->host_str);
1606 if (IS_ERR(ha->dpc_thread)) {
1607 qla_printk(KERN_WARNING, ha,
1608 "Unable to start DPC thread!\n");
1609 ret = PTR_ERR(ha->dpc_thread);
1610 goto probe_failed;
1611 }
1612
1613 host->this_id = 255;
1614 host->cmd_per_lun = 3;
1615 host->unique_id = ha->instance;
1616 host->max_cmd_len = MAX_CMDSZ;
1617 host->max_channel = MAX_BUSES - 1;
1618 host->max_lun = MAX_LUNS;
1619 host->transportt = qla2xxx_transport_template;
1620
1621 ret = qla2x00_request_irqs(ha);
1622 if (ret)
1623 goto probe_failed;
1624
1625 /* Initialized the timer */
1626 qla2x00_start_timer(ha, qla2x00_timer, WATCH_INTERVAL);
1627
1628 DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
1629 ha->host_no, ha));
1630
1631 ha->isp_ops.disable_intrs(ha);
1632
1633 spin_lock_irqsave(&ha->hardware_lock, flags);
1634 reg = ha->iobase;
1635 if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
1636 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_HOST_INT);
1637 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_RISC_INT);
1638 } else {
1639 WRT_REG_WORD(&reg->isp.semaphore, 0);
1640 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_RISC_INT);
1641 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_HOST_INT);
1642
1643 /* Enable proper parity */
1644 if (!IS_QLA2100(ha) && !IS_QLA2200(ha)) {
1645 if (IS_QLA2300(ha))
1646 /* SRAM parity */
1647 WRT_REG_WORD(&reg->isp.hccr,
1648 (HCCR_ENABLE_PARITY + 0x1));
1649 else
1650 /* SRAM, Instruction RAM and GP RAM parity */
1651 WRT_REG_WORD(&reg->isp.hccr,
1652 (HCCR_ENABLE_PARITY + 0x7));
1653 }
1654 }
1655 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1656
1657 ha->isp_ops.enable_intrs(ha);
1658
1659 pci_set_drvdata(pdev, ha);
1660
1661 ha->flags.init_done = 1;
1662 ha->flags.online = 1;
1663
1664 num_hosts++;
1665
1666 ret = scsi_add_host(host, &pdev->dev);
1667 if (ret)
1668 goto probe_failed;
1669
1670 scsi_scan_host(host);
1671
1672 qla2x00_alloc_sysfs_attr(ha);
1673
1674 qla2x00_init_host_attr(ha);
1675
1676 qla_printk(KERN_INFO, ha, "\n"
1677 " QLogic Fibre Channel HBA Driver: %s\n"
1678 " QLogic %s - %s\n"
1679 " ISP%04X: %s @ %s hdma%c, host#=%ld, fw=%s\n",
1680 qla2x00_version_str, ha->model_number,
1681 ha->model_desc ? ha->model_desc: "", pdev->device,
1682 ha->isp_ops.pci_info_str(ha, pci_info), pci_name(pdev),
1683 ha->flags.enable_64bit_addressing ? '+': '-', ha->host_no,
1684 ha->isp_ops.fw_version_str(ha, fw_str));
1685
1686 return 0;
1687
1688 probe_failed:
1689 qla2x00_free_device(ha);
1690
1691 scsi_host_put(host);
1692
1693 probe_disable_device:
1694 pci_disable_device(pdev);
1695
1696 probe_out:
1697 return ret;
1698 }
1699
1700 static void __devexit
1701 qla2x00_remove_one(struct pci_dev *pdev)
1702 {
1703 scsi_qla_host_t *ha;
1704
1705 ha = pci_get_drvdata(pdev);
1706
1707 qla2x00_free_sysfs_attr(ha);
1708
1709 fc_remove_host(ha->host);
1710
1711 scsi_remove_host(ha->host);
1712
1713 qla2x00_free_device(ha);
1714
1715 scsi_host_put(ha->host);
1716
1717 pci_disable_device(pdev);
1718 pci_set_drvdata(pdev, NULL);
1719 }
1720
1721 static void
1722 qla2x00_free_device(scsi_qla_host_t *ha)
1723 {
1724 /* Disable timer */
1725 if (ha->timer_active)
1726 qla2x00_stop_timer(ha);
1727
1728 /* Kill the kernel thread for this host */
1729 if (ha->dpc_thread) {
1730 struct task_struct *t = ha->dpc_thread;
1731
1732 /*
1733 * qla2xxx_wake_dpc checks for ->dpc_thread
1734 * so we need to zero it out.
1735 */
1736 ha->dpc_thread = NULL;
1737 kthread_stop(t);
1738 }
1739
1740 if (ha->eft)
1741 qla2x00_trace_control(ha, TC_DISABLE, 0, 0);
1742
1743 ha->flags.online = 0;
1744
1745 /* Stop currently executing firmware. */
1746 qla2x00_try_to_stop_firmware(ha);
1747
1748 /* turn-off interrupts on the card */
1749 if (ha->interrupts_on)
1750 ha->isp_ops.disable_intrs(ha);
1751
1752 qla2x00_mem_free(ha);
1753
1754 qla2x00_free_irqs(ha);
1755
1756 /* release io space registers */
1757 if (ha->iobase)
1758 iounmap(ha->iobase);
1759 pci_release_regions(ha->pdev);
1760 }
1761
1762 static inline void
1763 qla2x00_schedule_rport_del(struct scsi_qla_host *ha, fc_port_t *fcport,
1764 int defer)
1765 {
1766 unsigned long flags;
1767 struct fc_rport *rport;
1768
1769 if (!fcport->rport)
1770 return;
1771
1772 rport = fcport->rport;
1773 if (defer) {
1774 spin_lock_irqsave(&fcport->rport_lock, flags);
1775 fcport->drport = rport;
1776 fcport->rport = NULL;
1777 *(fc_port_t **)rport->dd_data = NULL;
1778 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1779 set_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags);
1780 } else {
1781 spin_lock_irqsave(&fcport->rport_lock, flags);
1782 fcport->rport = NULL;
1783 *(fc_port_t **)rport->dd_data = NULL;
1784 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1785 fc_remote_port_delete(rport);
1786 }
1787 }
1788
1789 /*
1790 * qla2x00_mark_device_lost Updates fcport state when device goes offline.
1791 *
1792 * Input: ha = adapter block pointer. fcport = port structure pointer.
1793 *
1794 * Return: None.
1795 *
1796 * Context:
1797 */
1798 void qla2x00_mark_device_lost(scsi_qla_host_t *ha, fc_port_t *fcport,
1799 int do_login, int defer)
1800 {
1801 if (atomic_read(&fcport->state) == FCS_ONLINE &&
1802 ha->vp_idx == fcport->vp_idx)
1803 qla2x00_schedule_rport_del(ha, fcport, defer);
1804
1805 /*
1806 * We may need to retry the login, so don't change the state of the
1807 * port but do the retries.
1808 */
1809 if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
1810 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1811
1812 if (!do_login)
1813 return;
1814
1815 if (fcport->login_retry == 0) {
1816 fcport->login_retry = ha->login_retry_count;
1817 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
1818
1819 DEBUG(printk("scsi(%ld): Port login retry: "
1820 "%02x%02x%02x%02x%02x%02x%02x%02x, "
1821 "id = 0x%04x retry cnt=%d\n",
1822 ha->host_no,
1823 fcport->port_name[0],
1824 fcport->port_name[1],
1825 fcport->port_name[2],
1826 fcport->port_name[3],
1827 fcport->port_name[4],
1828 fcport->port_name[5],
1829 fcport->port_name[6],
1830 fcport->port_name[7],
1831 fcport->loop_id,
1832 fcport->login_retry));
1833 }
1834 }
1835
1836 /*
1837 * qla2x00_mark_all_devices_lost
1838 * Updates fcport state when device goes offline.
1839 *
1840 * Input:
1841 * ha = adapter block pointer.
1842 * fcport = port structure pointer.
1843 *
1844 * Return:
1845 * None.
1846 *
1847 * Context:
1848 */
1849 void
1850 qla2x00_mark_all_devices_lost(scsi_qla_host_t *ha, int defer)
1851 {
1852 fc_port_t *fcport;
1853 scsi_qla_host_t *pha = to_qla_parent(ha);
1854
1855 list_for_each_entry(fcport, &pha->fcports, list) {
1856 if (ha->vp_idx != 0 && ha->vp_idx != fcport->vp_idx)
1857 continue;
1858 /*
1859 * No point in marking the device as lost, if the device is
1860 * already DEAD.
1861 */
1862 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
1863 continue;
1864 if (atomic_read(&fcport->state) == FCS_ONLINE) {
1865 if (defer)
1866 qla2x00_schedule_rport_del(ha, fcport, defer);
1867 else if (ha->vp_idx == fcport->vp_idx)
1868 qla2x00_schedule_rport_del(ha, fcport, defer);
1869 }
1870 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1871 }
1872
1873 if (defer)
1874 qla2xxx_wake_dpc(ha);
1875 }
1876
1877 /*
1878 * qla2x00_mem_alloc
1879 * Allocates adapter memory.
1880 *
1881 * Returns:
1882 * 0 = success.
1883 * 1 = failure.
1884 */
1885 uint8_t
1886 qla2x00_mem_alloc(scsi_qla_host_t *ha)
1887 {
1888 char name[16];
1889 uint8_t status = 1;
1890 int retry= 10;
1891
1892 do {
1893 /*
1894 * This will loop only once if everything goes well, else some
1895 * number of retries will be performed to get around a kernel
1896 * bug where available mem is not allocated until after a
1897 * little delay and a retry.
1898 */
1899 ha->request_ring = dma_alloc_coherent(&ha->pdev->dev,
1900 (ha->request_q_length + 1) * sizeof(request_t),
1901 &ha->request_dma, GFP_KERNEL);
1902 if (ha->request_ring == NULL) {
1903 qla_printk(KERN_WARNING, ha,
1904 "Memory Allocation failed - request_ring\n");
1905
1906 qla2x00_mem_free(ha);
1907 msleep(100);
1908
1909 continue;
1910 }
1911
1912 ha->response_ring = dma_alloc_coherent(&ha->pdev->dev,
1913 (ha->response_q_length + 1) * sizeof(response_t),
1914 &ha->response_dma, GFP_KERNEL);
1915 if (ha->response_ring == NULL) {
1916 qla_printk(KERN_WARNING, ha,
1917 "Memory Allocation failed - response_ring\n");
1918
1919 qla2x00_mem_free(ha);
1920 msleep(100);
1921
1922 continue;
1923 }
1924
1925 ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
1926 &ha->gid_list_dma, GFP_KERNEL);
1927 if (ha->gid_list == NULL) {
1928 qla_printk(KERN_WARNING, ha,
1929 "Memory Allocation failed - gid_list\n");
1930
1931 qla2x00_mem_free(ha);
1932 msleep(100);
1933
1934 continue;
1935 }
1936
1937 /* get consistent memory allocated for init control block */
1938 ha->init_cb = dma_alloc_coherent(&ha->pdev->dev,
1939 ha->init_cb_size, &ha->init_cb_dma, GFP_KERNEL);
1940 if (ha->init_cb == NULL) {
1941 qla_printk(KERN_WARNING, ha,
1942 "Memory Allocation failed - init_cb\n");
1943
1944 qla2x00_mem_free(ha);
1945 msleep(100);
1946
1947 continue;
1948 }
1949 memset(ha->init_cb, 0, ha->init_cb_size);
1950
1951 snprintf(name, sizeof(name), "%s_%ld", QLA2XXX_DRIVER_NAME,
1952 ha->host_no);
1953 ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
1954 DMA_POOL_SIZE, 8, 0);
1955 if (ha->s_dma_pool == NULL) {
1956 qla_printk(KERN_WARNING, ha,
1957 "Memory Allocation failed - s_dma_pool\n");
1958
1959 qla2x00_mem_free(ha);
1960 msleep(100);
1961
1962 continue;
1963 }
1964
1965 if (qla2x00_allocate_sp_pool(ha)) {
1966 qla_printk(KERN_WARNING, ha,
1967 "Memory Allocation failed - "
1968 "qla2x00_allocate_sp_pool()\n");
1969
1970 qla2x00_mem_free(ha);
1971 msleep(100);
1972
1973 continue;
1974 }
1975
1976 /* Allocate memory for SNS commands */
1977 if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
1978 /* Get consistent memory allocated for SNS commands */
1979 ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
1980 sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma,
1981 GFP_KERNEL);
1982 if (ha->sns_cmd == NULL) {
1983 /* error */
1984 qla_printk(KERN_WARNING, ha,
1985 "Memory Allocation failed - sns_cmd\n");
1986
1987 qla2x00_mem_free(ha);
1988 msleep(100);
1989
1990 continue;
1991 }
1992 memset(ha->sns_cmd, 0, sizeof(struct sns_cmd_pkt));
1993 } else {
1994 /* Get consistent memory allocated for MS IOCB */
1995 ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
1996 &ha->ms_iocb_dma);
1997 if (ha->ms_iocb == NULL) {
1998 /* error */
1999 qla_printk(KERN_WARNING, ha,
2000 "Memory Allocation failed - ms_iocb\n");
2001
2002 qla2x00_mem_free(ha);
2003 msleep(100);
2004
2005 continue;
2006 }
2007 memset(ha->ms_iocb, 0, sizeof(ms_iocb_entry_t));
2008
2009 /*
2010 * Get consistent memory allocated for CT SNS
2011 * commands
2012 */
2013 ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
2014 sizeof(struct ct_sns_pkt), &ha->ct_sns_dma,
2015 GFP_KERNEL);
2016 if (ha->ct_sns == NULL) {
2017 /* error */
2018 qla_printk(KERN_WARNING, ha,
2019 "Memory Allocation failed - ct_sns\n");
2020
2021 qla2x00_mem_free(ha);
2022 msleep(100);
2023
2024 continue;
2025 }
2026 memset(ha->ct_sns, 0, sizeof(struct ct_sns_pkt));
2027
2028 if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
2029 /*
2030 * Get consistent memory allocated for SFP
2031 * block.
2032 */
2033 ha->sfp_data = dma_pool_alloc(ha->s_dma_pool,
2034 GFP_KERNEL, &ha->sfp_data_dma);
2035 if (ha->sfp_data == NULL) {
2036 qla_printk(KERN_WARNING, ha,
2037 "Memory Allocation failed - "
2038 "sfp_data\n");
2039
2040 qla2x00_mem_free(ha);
2041 msleep(100);
2042
2043 continue;
2044 }
2045 memset(ha->sfp_data, 0, SFP_BLOCK_SIZE);
2046 }
2047 }
2048
2049 /* Done all allocations without any error. */
2050 status = 0;
2051
2052 } while (retry-- && status != 0);
2053
2054 if (status) {
2055 printk(KERN_WARNING
2056 "%s(): **** FAILED ****\n", __func__);
2057 }
2058
2059 return(status);
2060 }
2061
2062 /*
2063 * qla2x00_mem_free
2064 * Frees all adapter allocated memory.
2065 *
2066 * Input:
2067 * ha = adapter block pointer.
2068 */
2069 void
2070 qla2x00_mem_free(scsi_qla_host_t *ha)
2071 {
2072 struct list_head *fcpl, *fcptemp;
2073 fc_port_t *fcport;
2074
2075 if (ha == NULL) {
2076 /* error */
2077 DEBUG2(printk("%s(): ERROR invalid ha pointer.\n", __func__));
2078 return;
2079 }
2080
2081 /* free sp pool */
2082 qla2x00_free_sp_pool(ha);
2083
2084 if (ha->fw_dump) {
2085 if (ha->eft)
2086 dma_free_coherent(&ha->pdev->dev,
2087 ntohl(ha->fw_dump->eft_size), ha->eft, ha->eft_dma);
2088 vfree(ha->fw_dump);
2089 }
2090
2091 if (ha->sns_cmd)
2092 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
2093 ha->sns_cmd, ha->sns_cmd_dma);
2094
2095 if (ha->ct_sns)
2096 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2097 ha->ct_sns, ha->ct_sns_dma);
2098
2099 if (ha->sfp_data)
2100 dma_pool_free(ha->s_dma_pool, ha->sfp_data, ha->sfp_data_dma);
2101
2102 if (ha->ms_iocb)
2103 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2104
2105 if (ha->s_dma_pool)
2106 dma_pool_destroy(ha->s_dma_pool);
2107
2108 if (ha->init_cb)
2109 dma_free_coherent(&ha->pdev->dev, ha->init_cb_size,
2110 ha->init_cb, ha->init_cb_dma);
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 int rval;
2218 scsi_qla_host_t *ha;
2219 fc_port_t *fcport;
2220 uint8_t status;
2221 uint16_t next_loopid;
2222
2223 ha = (scsi_qla_host_t *)data;
2224
2225 set_user_nice(current, -20);
2226
2227 while (!kthread_should_stop()) {
2228 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
2229
2230 set_current_state(TASK_INTERRUPTIBLE);
2231 schedule();
2232 __set_current_state(TASK_RUNNING);
2233
2234 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
2235
2236 /* Initialization not yet finished. Don't do anything yet. */
2237 if (!ha->flags.init_done)
2238 continue;
2239
2240 DEBUG3(printk("scsi(%ld): DPC handler\n", ha->host_no));
2241
2242 ha->dpc_active = 1;
2243
2244 if (ha->flags.mbox_busy) {
2245 ha->dpc_active = 0;
2246 continue;
2247 }
2248
2249 if (test_and_clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) {
2250
2251 DEBUG(printk("scsi(%ld): dpc: sched "
2252 "qla2x00_abort_isp ha = %p\n",
2253 ha->host_no, ha));
2254 if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
2255 &ha->dpc_flags))) {
2256
2257 if (qla2x00_abort_isp(ha)) {
2258 /* failed. retry later */
2259 set_bit(ISP_ABORT_NEEDED,
2260 &ha->dpc_flags);
2261 }
2262 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2263 }
2264 DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
2265 ha->host_no));
2266 }
2267
2268 if (test_and_clear_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags))
2269 qla2x00_update_fcports(ha);
2270
2271 if (test_and_clear_bit(LOOP_RESET_NEEDED, &ha->dpc_flags)) {
2272 DEBUG(printk("scsi(%ld): dpc: sched loop_reset()\n",
2273 ha->host_no));
2274 qla2x00_loop_reset(ha);
2275 }
2276
2277 if (test_and_clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) &&
2278 (!(test_and_set_bit(RESET_ACTIVE, &ha->dpc_flags)))) {
2279
2280 DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
2281 ha->host_no));
2282
2283 qla2x00_rst_aen(ha);
2284 clear_bit(RESET_ACTIVE, &ha->dpc_flags);
2285 }
2286
2287 /* Retry each device up to login retry count */
2288 if ((test_and_clear_bit(RELOGIN_NEEDED, &ha->dpc_flags)) &&
2289 !test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) &&
2290 atomic_read(&ha->loop_state) != LOOP_DOWN) {
2291
2292 DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
2293 ha->host_no));
2294
2295 next_loopid = 0;
2296 list_for_each_entry(fcport, &ha->fcports, list) {
2297 /*
2298 * If the port is not ONLINE then try to login
2299 * to it if we haven't run out of retries.
2300 */
2301 if (atomic_read(&fcport->state) != FCS_ONLINE &&
2302 fcport->login_retry) {
2303
2304 fcport->login_retry--;
2305 if (fcport->flags & FCF_FABRIC_DEVICE) {
2306 if (fcport->flags &
2307 FCF_TAPE_PRESENT)
2308 ha->isp_ops.fabric_logout(
2309 ha, fcport->loop_id,
2310 fcport->d_id.b.domain,
2311 fcport->d_id.b.area,
2312 fcport->d_id.b.al_pa);
2313 status = qla2x00_fabric_login(
2314 ha, fcport, &next_loopid);
2315 } else
2316 status =
2317 qla2x00_local_device_login(
2318 ha, fcport);
2319
2320 if (status == QLA_SUCCESS) {
2321 fcport->old_loop_id = fcport->loop_id;
2322
2323 DEBUG(printk("scsi(%ld): port login OK: logged in ID 0x%x\n",
2324 ha->host_no, fcport->loop_id));
2325
2326 qla2x00_update_fcport(ha,
2327 fcport);
2328 } else if (status == 1) {
2329 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
2330 /* retry the login again */
2331 DEBUG(printk("scsi(%ld): Retrying %d login again loop_id 0x%x\n",
2332 ha->host_no,
2333 fcport->login_retry, fcport->loop_id));
2334 } else {
2335 fcport->login_retry = 0;
2336 }
2337 }
2338 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2339 break;
2340 }
2341 DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
2342 ha->host_no));
2343 }
2344
2345 if ((test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags)) &&
2346 atomic_read(&ha->loop_state) != LOOP_DOWN) {
2347
2348 clear_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags);
2349 DEBUG(printk("scsi(%ld): qla2x00_login_retry()\n",
2350 ha->host_no));
2351
2352 set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
2353
2354 DEBUG(printk("scsi(%ld): qla2x00_login_retry - end\n",
2355 ha->host_no));
2356 }
2357
2358 if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
2359
2360 DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
2361 ha->host_no));
2362
2363 if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
2364 &ha->dpc_flags))) {
2365
2366 rval = qla2x00_loop_resync(ha);
2367
2368 clear_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags);
2369 }
2370
2371 DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
2372 ha->host_no));
2373 }
2374
2375 if (test_and_clear_bit(FCPORT_RESCAN_NEEDED, &ha->dpc_flags)) {
2376
2377 DEBUG(printk("scsi(%ld): Rescan flagged fcports...\n",
2378 ha->host_no));
2379
2380 qla2x00_rescan_fcports(ha);
2381
2382 DEBUG(printk("scsi(%ld): Rescan flagged fcports..."
2383 "end.\n",
2384 ha->host_no));
2385 }
2386
2387 if (!ha->interrupts_on)
2388 ha->isp_ops.enable_intrs(ha);
2389
2390 if (test_and_clear_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags))
2391 ha->isp_ops.beacon_blink(ha);
2392
2393 qla2x00_do_dpc_all_vps(ha);
2394
2395 ha->dpc_active = 0;
2396 } /* End of while(1) */
2397
2398 DEBUG(printk("scsi(%ld): DPC handler exiting\n", ha->host_no));
2399
2400 /*
2401 * Make sure that nobody tries to wake us up again.
2402 */
2403 ha->dpc_active = 0;
2404
2405 return 0;
2406 }
2407
2408 void
2409 qla2xxx_wake_dpc(scsi_qla_host_t *ha)
2410 {
2411 if (ha->dpc_thread)
2412 wake_up_process(ha->dpc_thread);
2413 }
2414
2415 /*
2416 * qla2x00_rst_aen
2417 * Processes asynchronous reset.
2418 *
2419 * Input:
2420 * ha = adapter block pointer.
2421 */
2422 static void
2423 qla2x00_rst_aen(scsi_qla_host_t *ha)
2424 {
2425 if (ha->flags.online && !ha->flags.reset_active &&
2426 !atomic_read(&ha->loop_down_timer) &&
2427 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) {
2428 do {
2429 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
2430
2431 /*
2432 * Issue marker command only when we are going to start
2433 * the I/O.
2434 */
2435 ha->marker_needed = 1;
2436 } while (!atomic_read(&ha->loop_down_timer) &&
2437 (test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags)));
2438 }
2439 }
2440
2441 static void
2442 qla2x00_sp_free_dma(scsi_qla_host_t *ha, srb_t *sp)
2443 {
2444 struct scsi_cmnd *cmd = sp->cmd;
2445
2446 if (sp->flags & SRB_DMA_VALID) {
2447 scsi_dma_unmap(cmd);
2448 sp->flags &= ~SRB_DMA_VALID;
2449 }
2450 CMD_SP(cmd) = NULL;
2451 }
2452
2453 void
2454 qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *sp)
2455 {
2456 struct scsi_cmnd *cmd = sp->cmd;
2457
2458 qla2x00_sp_free_dma(ha, sp);
2459
2460 mempool_free(sp, ha->srb_mempool);
2461
2462 cmd->scsi_done(cmd);
2463 }
2464
2465 /**************************************************************************
2466 * qla2x00_timer
2467 *
2468 * Description:
2469 * One second timer
2470 *
2471 * Context: Interrupt
2472 ***************************************************************************/
2473 void
2474 qla2x00_timer(scsi_qla_host_t *ha)
2475 {
2476 unsigned long cpu_flags = 0;
2477 fc_port_t *fcport;
2478 int start_dpc = 0;
2479 int index;
2480 srb_t *sp;
2481 int t;
2482 scsi_qla_host_t *pha = to_qla_parent(ha);
2483
2484 /*
2485 * Ports - Port down timer.
2486 *
2487 * Whenever, a port is in the LOST state we start decrementing its port
2488 * down timer every second until it reaches zero. Once it reaches zero
2489 * the port it marked DEAD.
2490 */
2491 t = 0;
2492 list_for_each_entry(fcport, &ha->fcports, list) {
2493 if (fcport->port_type != FCT_TARGET)
2494 continue;
2495
2496 if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
2497
2498 if (atomic_read(&fcport->port_down_timer) == 0)
2499 continue;
2500
2501 if (atomic_dec_and_test(&fcport->port_down_timer) != 0)
2502 atomic_set(&fcport->state, FCS_DEVICE_DEAD);
2503
2504 DEBUG(printk("scsi(%ld): fcport-%d - port retry count: "
2505 "%d remaining\n",
2506 ha->host_no,
2507 t, atomic_read(&fcport->port_down_timer)));
2508 }
2509 t++;
2510 } /* End of for fcport */
2511
2512
2513 /* Loop down handler. */
2514 if (atomic_read(&ha->loop_down_timer) > 0 &&
2515 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags)) && ha->flags.online) {
2516
2517 if (atomic_read(&ha->loop_down_timer) ==
2518 ha->loop_down_abort_time) {
2519
2520 DEBUG(printk("scsi(%ld): Loop Down - aborting the "
2521 "queues before time expire\n",
2522 ha->host_no));
2523
2524 if (!IS_QLA2100(ha) && ha->link_down_timeout)
2525 atomic_set(&ha->loop_state, LOOP_DEAD);
2526
2527 /* Schedule an ISP abort to return any tape commands. */
2528 /* NPIV - scan physical port only */
2529 if (!ha->parent) {
2530 spin_lock_irqsave(&ha->hardware_lock,
2531 cpu_flags);
2532 for (index = 1;
2533 index < MAX_OUTSTANDING_COMMANDS;
2534 index++) {
2535 fc_port_t *sfcp;
2536
2537 sp = ha->outstanding_cmds[index];
2538 if (!sp)
2539 continue;
2540 sfcp = sp->fcport;
2541 if (!(sfcp->flags & FCF_TAPE_PRESENT))
2542 continue;
2543
2544 set_bit(ISP_ABORT_NEEDED,
2545 &ha->dpc_flags);
2546 break;
2547 }
2548 spin_unlock_irqrestore(&ha->hardware_lock,
2549 cpu_flags);
2550 }
2551 set_bit(ABORT_QUEUES_NEEDED, &ha->dpc_flags);
2552 start_dpc++;
2553 }
2554
2555 /* if the loop has been down for 4 minutes, reinit adapter */
2556 if (atomic_dec_and_test(&ha->loop_down_timer) != 0) {
2557 DEBUG(printk("scsi(%ld): Loop down exceed 4 mins - "
2558 "restarting queues.\n",
2559 ha->host_no));
2560
2561 set_bit(RESTART_QUEUES_NEEDED, &ha->dpc_flags);
2562 start_dpc++;
2563
2564 if (!(ha->device_flags & DFLG_NO_CABLE)) {
2565 DEBUG(printk("scsi(%ld): Loop down - "
2566 "aborting ISP.\n",
2567 ha->host_no));
2568 qla_printk(KERN_WARNING, ha,
2569 "Loop down - aborting ISP.\n");
2570
2571 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2572 }
2573 }
2574 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
2575 ha->host_no,
2576 atomic_read(&ha->loop_down_timer)));
2577 }
2578
2579 /* Check if beacon LED needs to be blinked */
2580 if (ha->beacon_blink_led == 1) {
2581 set_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags);
2582 start_dpc++;
2583 }
2584
2585 /* Schedule the DPC routine if needed */
2586 if ((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags) ||
2587 test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) ||
2588 test_bit(LOOP_RESET_NEEDED, &ha->dpc_flags) ||
2589 test_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags) ||
2590 start_dpc ||
2591 test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags) ||
2592 test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) ||
2593 test_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags) ||
2594 test_bit(VP_DPC_NEEDED, &ha->dpc_flags) ||
2595 test_bit(RELOGIN_NEEDED, &ha->dpc_flags)))
2596 qla2xxx_wake_dpc(pha);
2597
2598 qla2x00_restart_timer(ha, WATCH_INTERVAL);
2599 }
2600
2601 /* XXX(hch): crude hack to emulate a down_timeout() */
2602 int
2603 qla2x00_down_timeout(struct semaphore *sema, unsigned long timeout)
2604 {
2605 const unsigned int step = 100; /* msecs */
2606 unsigned int iterations = jiffies_to_msecs(timeout)/100;
2607
2608 do {
2609 if (!down_trylock(sema))
2610 return 0;
2611 if (msleep_interruptible(step))
2612 break;
2613 } while (--iterations > 0);
2614
2615 return -ETIMEDOUT;
2616 }
2617
2618 /* Firmware interface routines. */
2619
2620 #define FW_BLOBS 5
2621 #define FW_ISP21XX 0
2622 #define FW_ISP22XX 1
2623 #define FW_ISP2300 2
2624 #define FW_ISP2322 3
2625 #define FW_ISP24XX 4
2626
2627 #define FW_FILE_ISP21XX "ql2100_fw.bin"
2628 #define FW_FILE_ISP22XX "ql2200_fw.bin"
2629 #define FW_FILE_ISP2300 "ql2300_fw.bin"
2630 #define FW_FILE_ISP2322 "ql2322_fw.bin"
2631 #define FW_FILE_ISP24XX "ql2400_fw.bin"
2632
2633 static DECLARE_MUTEX(qla_fw_lock);
2634
2635 static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
2636 { .name = FW_FILE_ISP21XX, .segs = { 0x1000, 0 }, },
2637 { .name = FW_FILE_ISP22XX, .segs = { 0x1000, 0 }, },
2638 { .name = FW_FILE_ISP2300, .segs = { 0x800, 0 }, },
2639 { .name = FW_FILE_ISP2322, .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
2640 { .name = FW_FILE_ISP24XX, },
2641 };
2642
2643 struct fw_blob *
2644 qla2x00_request_firmware(scsi_qla_host_t *ha)
2645 {
2646 struct fw_blob *blob;
2647
2648 blob = NULL;
2649 if (IS_QLA2100(ha)) {
2650 blob = &qla_fw_blobs[FW_ISP21XX];
2651 } else if (IS_QLA2200(ha)) {
2652 blob = &qla_fw_blobs[FW_ISP22XX];
2653 } else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
2654 blob = &qla_fw_blobs[FW_ISP2300];
2655 } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
2656 blob = &qla_fw_blobs[FW_ISP2322];
2657 } else if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
2658 blob = &qla_fw_blobs[FW_ISP24XX];
2659 }
2660
2661 down(&qla_fw_lock);
2662 if (blob->fw)
2663 goto out;
2664
2665 if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
2666 DEBUG2(printk("scsi(%ld): Failed to load firmware image "
2667 "(%s).\n", ha->host_no, blob->name));
2668 blob->fw = NULL;
2669 blob = NULL;
2670 goto out;
2671 }
2672
2673 out:
2674 up(&qla_fw_lock);
2675 return blob;
2676 }
2677
2678 static void
2679 qla2x00_release_firmware(void)
2680 {
2681 int idx;
2682
2683 down(&qla_fw_lock);
2684 for (idx = 0; idx < FW_BLOBS; idx++)
2685 if (qla_fw_blobs[idx].fw)
2686 release_firmware(qla_fw_blobs[idx].fw);
2687 up(&qla_fw_lock);
2688 }
2689
2690 static struct pci_device_id qla2xxx_pci_tbl[] = {
2691 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
2692 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
2693 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
2694 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
2695 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
2696 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
2697 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
2698 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
2699 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
2700 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
2701 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
2702 { 0 },
2703 };
2704 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
2705
2706 static struct pci_driver qla2xxx_pci_driver = {
2707 .name = QLA2XXX_DRIVER_NAME,
2708 .driver = {
2709 .owner = THIS_MODULE,
2710 },
2711 .id_table = qla2xxx_pci_tbl,
2712 .probe = qla2x00_probe_one,
2713 .remove = __devexit_p(qla2x00_remove_one),
2714 };
2715
2716 /**
2717 * qla2x00_module_init - Module initialization.
2718 **/
2719 static int __init
2720 qla2x00_module_init(void)
2721 {
2722 int ret = 0;
2723
2724 /* Allocate cache for SRBs. */
2725 srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
2726 SLAB_HWCACHE_ALIGN, NULL, NULL);
2727 if (srb_cachep == NULL) {
2728 printk(KERN_ERR
2729 "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
2730 return -ENOMEM;
2731 }
2732
2733 /* Derive version string. */
2734 strcpy(qla2x00_version_str, QLA2XXX_VERSION);
2735 if (ql2xextended_error_logging)
2736 strcat(qla2x00_version_str, "-debug");
2737
2738 qla2xxx_transport_template =
2739 fc_attach_transport(&qla2xxx_transport_functions);
2740 if (!qla2xxx_transport_template) {
2741 kmem_cache_destroy(srb_cachep);
2742 return -ENODEV;
2743 }
2744 qla2xxx_transport_vport_template =
2745 fc_attach_transport(&qla2xxx_transport_vport_functions);
2746 if (!qla2xxx_transport_vport_template) {
2747 kmem_cache_destroy(srb_cachep);
2748 fc_release_transport(qla2xxx_transport_template);
2749 return -ENODEV;
2750 }
2751
2752 printk(KERN_INFO "QLogic Fibre Channel HBA Driver\n");
2753 ret = pci_register_driver(&qla2xxx_pci_driver);
2754 if (ret) {
2755 kmem_cache_destroy(srb_cachep);
2756 fc_release_transport(qla2xxx_transport_template);
2757 fc_release_transport(qla2xxx_transport_vport_template);
2758 }
2759 return ret;
2760 }
2761
2762 /**
2763 * qla2x00_module_exit - Module cleanup.
2764 **/
2765 static void __exit
2766 qla2x00_module_exit(void)
2767 {
2768 pci_unregister_driver(&qla2xxx_pci_driver);
2769 qla2x00_release_firmware();
2770 kmem_cache_destroy(srb_cachep);
2771 fc_release_transport(qla2xxx_transport_template);
2772 fc_release_transport(qla2xxx_transport_vport_template);
2773 }
2774
2775 module_init(qla2x00_module_init);
2776 module_exit(qla2x00_module_exit);
2777
2778 MODULE_AUTHOR("QLogic Corporation");
2779 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
2780 MODULE_LICENSE("GPL");
2781 MODULE_VERSION(QLA2XXX_VERSION);
2782 MODULE_FIRMWARE(FW_FILE_ISP21XX);
2783 MODULE_FIRMWARE(FW_FILE_ISP22XX);
2784 MODULE_FIRMWARE(FW_FILE_ISP2300);
2785 MODULE_FIRMWARE(FW_FILE_ISP2322);
2786 MODULE_FIRMWARE(FW_FILE_ISP24XX);
Linux kernel - Deliverables
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