?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
Merge ../scsi-rc-fixes-2.6
[linux-2.6/linux-loongson.git] / drivers / scsi / qla2xxx / qla_os.c
blob3eb4cd2cbc7838baef9dc3ee199528f269451d1d
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 kmem_cache_t *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 void qla2xxx_slave_destroy(struct scsi_device *);
99 static int qla2x00_queuecommand(struct scsi_cmnd *cmd,
100 void (*fn)(struct scsi_cmnd *));
101 static int qla24xx_queuecommand(struct scsi_cmnd *cmd,
102 void (*fn)(struct scsi_cmnd *));
103 static int qla2xxx_eh_abort(struct scsi_cmnd *);
104 static int qla2xxx_eh_device_reset(struct scsi_cmnd *);
105 static int qla2xxx_eh_bus_reset(struct scsi_cmnd *);
106 static int qla2xxx_eh_host_reset(struct scsi_cmnd *);
107 static int qla2x00_loop_reset(scsi_qla_host_t *ha);
108 static int qla2x00_device_reset(scsi_qla_host_t *, fc_port_t *);
109
110 static int qla2x00_change_queue_depth(struct scsi_device *, int);
111 static int qla2x00_change_queue_type(struct scsi_device *, int);
112
113 static struct scsi_host_template qla2x00_driver_template = {
114 .module = THIS_MODULE,
115 .name = QLA2XXX_DRIVER_NAME,
116 .queuecommand = qla2x00_queuecommand,
117
118 .eh_abort_handler = qla2xxx_eh_abort,
119 .eh_device_reset_handler = qla2xxx_eh_device_reset,
120 .eh_bus_reset_handler = qla2xxx_eh_bus_reset,
121 .eh_host_reset_handler = qla2xxx_eh_host_reset,
122
123 .slave_configure = qla2xxx_slave_configure,
124
125 .slave_alloc = qla2xxx_slave_alloc,
126 .slave_destroy = qla2xxx_slave_destroy,
127 .change_queue_depth = qla2x00_change_queue_depth,
128 .change_queue_type = qla2x00_change_queue_type,
129 .this_id = -1,
130 .cmd_per_lun = 3,
131 .use_clustering = ENABLE_CLUSTERING,
132 .sg_tablesize = SG_ALL,
133
134 /*
135 * The RISC allows for each command to transfer (2^32-1) bytes of data,
136 * which equates to 0x800000 sectors.
137 */
138 .max_sectors = 0xFFFF,
139 .shost_attrs = qla2x00_host_attrs,
140 };
141
142 static struct scsi_host_template qla24xx_driver_template = {
143 .module = THIS_MODULE,
144 .name = QLA2XXX_DRIVER_NAME,
145 .queuecommand = qla24xx_queuecommand,
146
147 .eh_abort_handler = qla2xxx_eh_abort,
148 .eh_device_reset_handler = qla2xxx_eh_device_reset,
149 .eh_bus_reset_handler = qla2xxx_eh_bus_reset,
150 .eh_host_reset_handler = qla2xxx_eh_host_reset,
151
152 .slave_configure = qla2xxx_slave_configure,
153
154 .slave_alloc = qla2xxx_slave_alloc,
155 .slave_destroy = qla2xxx_slave_destroy,
156 .change_queue_depth = qla2x00_change_queue_depth,
157 .change_queue_type = qla2x00_change_queue_type,
158 .this_id = -1,
159 .cmd_per_lun = 3,
160 .use_clustering = ENABLE_CLUSTERING,
161 .sg_tablesize = SG_ALL,
162
163 .max_sectors = 0xFFFF,
164 .shost_attrs = qla2x00_host_attrs,
165 };
166
167 static struct scsi_transport_template *qla2xxx_transport_template = NULL;
168
169 /* TODO Convert to inlines
170 *
171 * Timer routines
172 */
173 #define WATCH_INTERVAL 1 /* number of seconds */
174
175 static void qla2x00_timer(scsi_qla_host_t *);
176
177 static __inline__ void qla2x00_start_timer(scsi_qla_host_t *,
178 void *, unsigned long);
179 static __inline__ void qla2x00_restart_timer(scsi_qla_host_t *, unsigned long);
180 static __inline__ void qla2x00_stop_timer(scsi_qla_host_t *);
181
182 static inline void
183 qla2x00_start_timer(scsi_qla_host_t *ha, void *func, unsigned long interval)
184 {
185 init_timer(&ha->timer);
186 ha->timer.expires = jiffies + interval * HZ;
187 ha->timer.data = (unsigned long)ha;
188 ha->timer.function = (void (*)(unsigned long))func;
189 add_timer(&ha->timer);
190 ha->timer_active = 1;
191 }
192
193 static inline void
194 qla2x00_restart_timer(scsi_qla_host_t *ha, unsigned long interval)
195 {
196 mod_timer(&ha->timer, jiffies + interval * HZ);
197 }
198
199 static __inline__ void
200 qla2x00_stop_timer(scsi_qla_host_t *ha)
201 {
202 del_timer_sync(&ha->timer);
203 ha->timer_active = 0;
204 }
205
206 static int qla2x00_do_dpc(void *data);
207
208 static void qla2x00_rst_aen(scsi_qla_host_t *);
209
210 static uint8_t qla2x00_mem_alloc(scsi_qla_host_t *);
211 static void qla2x00_mem_free(scsi_qla_host_t *ha);
212 static int qla2x00_allocate_sp_pool( scsi_qla_host_t *ha);
213 static void qla2x00_free_sp_pool(scsi_qla_host_t *ha);
214 static void qla2x00_sp_free_dma(scsi_qla_host_t *, srb_t *);
215 void qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *);
216
217 /* -------------------------------------------------------------------------- */
218
219 static char *
220 qla2x00_pci_info_str(struct scsi_qla_host *ha, char *str)
221 {
222 static char *pci_bus_modes[] = {
223 "33", "66", "100", "133",
224 };
225 uint16_t pci_bus;
226
227 strcpy(str, "PCI");
228 pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
229 if (pci_bus) {
230 strcat(str, "-X (");
231 strcat(str, pci_bus_modes[pci_bus]);
232 } else {
233 pci_bus = (ha->pci_attr & BIT_8) >> 8;
234 strcat(str, " (");
235 strcat(str, pci_bus_modes[pci_bus]);
236 }
237 strcat(str, " MHz)");
238
239 return (str);
240 }
241
242 static char *
243 qla24xx_pci_info_str(struct scsi_qla_host *ha, char *str)
244 {
245 static char *pci_bus_modes[] = { "33", "66", "100", "133", };
246 uint32_t pci_bus;
247 int pcie_reg;
248
249 pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
250 if (pcie_reg) {
251 char lwstr[6];
252 uint16_t pcie_lstat, lspeed, lwidth;
253
254 pcie_reg += 0x12;
255 pci_read_config_word(ha->pdev, pcie_reg, &pcie_lstat);
256 lspeed = pcie_lstat & (BIT_0 | BIT_1 | BIT_2 | BIT_3);
257 lwidth = (pcie_lstat &
258 (BIT_4 | BIT_5 | BIT_6 | BIT_7 | BIT_8 | BIT_9)) >> 4;
259
260 strcpy(str, "PCIe (");
261 if (lspeed == 1)
262 strcat(str, "2.5Gb/s ");
263 else
264 strcat(str, "<unknown> ");
265 snprintf(lwstr, sizeof(lwstr), "x%d)", lwidth);
266 strcat(str, lwstr);
267
268 return str;
269 }
270
271 strcpy(str, "PCI");
272 pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
273 if (pci_bus == 0 || pci_bus == 8) {
274 strcat(str, " (");
275 strcat(str, pci_bus_modes[pci_bus >> 3]);
276 } else {
277 strcat(str, "-X ");
278 if (pci_bus & BIT_2)
279 strcat(str, "Mode 2");
280 else
281 strcat(str, "Mode 1");
282 strcat(str, " (");
283 strcat(str, pci_bus_modes[pci_bus & ~BIT_2]);
284 }
285 strcat(str, " MHz)");
286
287 return str;
288 }
289
290 static char *
291 qla2x00_fw_version_str(struct scsi_qla_host *ha, char *str)
292 {
293 char un_str[10];
294
295 sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
296 ha->fw_minor_version,
297 ha->fw_subminor_version);
298
299 if (ha->fw_attributes & BIT_9) {
300 strcat(str, "FLX");
301 return (str);
302 }
303
304 switch (ha->fw_attributes & 0xFF) {
305 case 0x7:
306 strcat(str, "EF");
307 break;
308 case 0x17:
309 strcat(str, "TP");
310 break;
311 case 0x37:
312 strcat(str, "IP");
313 break;
314 case 0x77:
315 strcat(str, "VI");
316 break;
317 default:
318 sprintf(un_str, "(%x)", ha->fw_attributes);
319 strcat(str, un_str);
320 break;
321 }
322 if (ha->fw_attributes & 0x100)
323 strcat(str, "X");
324
325 return (str);
326 }
327
328 static char *
329 qla24xx_fw_version_str(struct scsi_qla_host *ha, char *str)
330 {
331 sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
332 ha->fw_minor_version,
333 ha->fw_subminor_version);
334
335 if (ha->fw_attributes & BIT_0)
336 strcat(str, "[Class 2] ");
337 if (ha->fw_attributes & BIT_1)
338 strcat(str, "[IP] ");
339 if (ha->fw_attributes & BIT_2)
340 strcat(str, "[Multi-ID] ");
341 if (ha->fw_attributes & BIT_13)
342 strcat(str, "[Experimental]");
343 return str;
344 }
345
346 static inline srb_t *
347 qla2x00_get_new_sp(scsi_qla_host_t *ha, fc_port_t *fcport,
348 struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
349 {
350 srb_t *sp;
351
352 sp = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
353 if (!sp)
354 return sp;
355
356 sp->ha = ha;
357 sp->fcport = fcport;
358 sp->cmd = cmd;
359 sp->flags = 0;
360 CMD_SP(cmd) = (void *)sp;
361 cmd->scsi_done = done;
362
363 return sp;
364 }
365
366 static int
367 qla2x00_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
368 {
369 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
370 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
371 struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
372 srb_t *sp;
373 int rval;
374
375 rval = fc_remote_port_chkready(rport);
376 if (rval) {
377 cmd->result = rval;
378 goto qc_fail_command;
379 }
380
381 /* Close window on fcport/rport state-transitioning. */
382 if (!*(fc_port_t **)rport->dd_data) {
383 cmd->result = DID_IMM_RETRY << 16;
384 goto qc_fail_command;
385 }
386
387 if (atomic_read(&fcport->state) != FCS_ONLINE) {
388 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
389 atomic_read(&ha->loop_state) == LOOP_DEAD) {
390 cmd->result = DID_NO_CONNECT << 16;
391 goto qc_fail_command;
392 }
393 goto qc_host_busy;
394 }
395
396 spin_unlock_irq(ha->host->host_lock);
397
398 sp = qla2x00_get_new_sp(ha, fcport, cmd, done);
399 if (!sp)
400 goto qc_host_busy_lock;
401
402 rval = qla2x00_start_scsi(sp);
403 if (rval != QLA_SUCCESS)
404 goto qc_host_busy_free_sp;
405
406 spin_lock_irq(ha->host->host_lock);
407
408 return 0;
409
410 qc_host_busy_free_sp:
411 qla2x00_sp_free_dma(ha, sp);
412 mempool_free(sp, ha->srb_mempool);
413
414 qc_host_busy_lock:
415 spin_lock_irq(ha->host->host_lock);
416
417 qc_host_busy:
418 return SCSI_MLQUEUE_HOST_BUSY;
419
420 qc_fail_command:
421 done(cmd);
422
423 return 0;
424 }
425
426
427 static int
428 qla24xx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
429 {
430 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
431 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
432 struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
433 srb_t *sp;
434 int rval;
435
436 rval = fc_remote_port_chkready(rport);
437 if (rval) {
438 cmd->result = rval;
439 goto qc24_fail_command;
440 }
441
442 /* Close window on fcport/rport state-transitioning. */
443 if (!*(fc_port_t **)rport->dd_data) {
444 cmd->result = DID_IMM_RETRY << 16;
445 goto qc24_fail_command;
446 }
447
448 if (atomic_read(&fcport->state) != FCS_ONLINE) {
449 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
450 atomic_read(&ha->loop_state) == LOOP_DEAD) {
451 cmd->result = DID_NO_CONNECT << 16;
452 goto qc24_fail_command;
453 }
454 goto qc24_host_busy;
455 }
456
457 spin_unlock_irq(ha->host->host_lock);
458
459 sp = qla2x00_get_new_sp(ha, fcport, cmd, done);
460 if (!sp)
461 goto qc24_host_busy_lock;
462
463 rval = qla24xx_start_scsi(sp);
464 if (rval != QLA_SUCCESS)
465 goto qc24_host_busy_free_sp;
466
467 spin_lock_irq(ha->host->host_lock);
468
469 return 0;
470
471 qc24_host_busy_free_sp:
472 qla2x00_sp_free_dma(ha, sp);
473 mempool_free(sp, ha->srb_mempool);
474
475 qc24_host_busy_lock:
476 spin_lock_irq(ha->host->host_lock);
477
478 qc24_host_busy:
479 return SCSI_MLQUEUE_HOST_BUSY;
480
481 qc24_fail_command:
482 done(cmd);
483
484 return 0;
485 }
486
487
488 /*
489 * qla2x00_eh_wait_on_command
490 * Waits for the command to be returned by the Firmware for some
491 * max time.
492 *
493 * Input:
494 * ha = actual ha whose done queue will contain the command
495 * returned by firmware.
496 * cmd = Scsi Command to wait on.
497 * flag = Abort/Reset(Bus or Device Reset)
498 *
499 * Return:
500 * Not Found : 0
501 * Found : 1
502 */
503 static int
504 qla2x00_eh_wait_on_command(scsi_qla_host_t *ha, struct scsi_cmnd *cmd)
505 {
506 #define ABORT_POLLING_PERIOD 1000
507 #define ABORT_WAIT_ITER ((10 * 1000) / (ABORT_POLLING_PERIOD))
508 unsigned long wait_iter = ABORT_WAIT_ITER;
509 int ret = QLA_SUCCESS;
510
511 while (CMD_SP(cmd)) {
512 msleep(ABORT_POLLING_PERIOD);
513
514 if (--wait_iter)
515 break;
516 }
517 if (CMD_SP(cmd))
518 ret = QLA_FUNCTION_FAILED;
519
520 return ret;
521 }
522
523 /*
524 * qla2x00_wait_for_hba_online
525 * Wait till the HBA is online after going through
526 * <= MAX_RETRIES_OF_ISP_ABORT or
527 * finally HBA is disabled ie marked offline
528 *
529 * Input:
530 * ha - pointer to host adapter structure
531 *
532 * Note:
533 * Does context switching-Release SPIN_LOCK
534 * (if any) before calling this routine.
535 *
536 * Return:
537 * Success (Adapter is online) : 0
538 * Failed (Adapter is offline/disabled) : 1
539 */
540 int
541 qla2x00_wait_for_hba_online(scsi_qla_host_t *ha)
542 {
543 int return_status;
544 unsigned long wait_online;
545
546 wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
547 while (((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) ||
548 test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags) ||
549 test_bit(ISP_ABORT_RETRY, &ha->dpc_flags) ||
550 ha->dpc_active) && time_before(jiffies, wait_online)) {
551
552 msleep(1000);
553 }
554 if (ha->flags.online)
555 return_status = QLA_SUCCESS;
556 else
557 return_status = QLA_FUNCTION_FAILED;
558
559 DEBUG2(printk("%s return_status=%d\n",__func__,return_status));
560
561 return (return_status);
562 }
563
564 /*
565 * qla2x00_wait_for_loop_ready
566 * Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
567 * to be in LOOP_READY state.
568 * Input:
569 * ha - pointer to host adapter structure
570 *
571 * Note:
572 * Does context switching-Release SPIN_LOCK
573 * (if any) before calling this routine.
574 *
575 *
576 * Return:
577 * Success (LOOP_READY) : 0
578 * Failed (LOOP_NOT_READY) : 1
579 */
580 static inline int
581 qla2x00_wait_for_loop_ready(scsi_qla_host_t *ha)
582 {
583 int return_status = QLA_SUCCESS;
584 unsigned long loop_timeout ;
585
586 /* wait for 5 min at the max for loop to be ready */
587 loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ);
588
589 while ((!atomic_read(&ha->loop_down_timer) &&
590 atomic_read(&ha->loop_state) == LOOP_DOWN) ||
591 atomic_read(&ha->loop_state) != LOOP_READY) {
592 if (atomic_read(&ha->loop_state) == LOOP_DEAD) {
593 return_status = QLA_FUNCTION_FAILED;
594 break;
595 }
596 msleep(1000);
597 if (time_after_eq(jiffies, loop_timeout)) {
598 return_status = QLA_FUNCTION_FAILED;
599 break;
600 }
601 }
602 return (return_status);
603 }
604
605 static void
606 qla2x00_block_error_handler(struct scsi_cmnd *cmnd)
607 {
608 struct Scsi_Host *shost = cmnd->device->host;
609 struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device));
610 unsigned long flags;
611
612 spin_lock_irqsave(shost->host_lock, flags);
613 while (rport->port_state == FC_PORTSTATE_BLOCKED) {
614 spin_unlock_irqrestore(shost->host_lock, flags);
615 msleep(1000);
616 spin_lock_irqsave(shost->host_lock, flags);
617 }
618 spin_unlock_irqrestore(shost->host_lock, flags);
619 return;
620 }
621
622 /**************************************************************************
623 * qla2xxx_eh_abort
624 *
625 * Description:
626 * The abort function will abort the specified command.
627 *
628 * Input:
629 * cmd = Linux SCSI command packet to be aborted.
630 *
631 * Returns:
632 * Either SUCCESS or FAILED.
633 *
634 * Note:
635 * Only return FAILED if command not returned by firmware.
636 **************************************************************************/
637 static int
638 qla2xxx_eh_abort(struct scsi_cmnd *cmd)
639 {
640 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
641 srb_t *sp;
642 int ret, i;
643 unsigned int id, lun;
644 unsigned long serial;
645 unsigned long flags;
646 int wait = 0;
647
648 qla2x00_block_error_handler(cmd);
649
650 if (!CMD_SP(cmd))
651 return SUCCESS;
652
653 ret = SUCCESS;
654
655 id = cmd->device->id;
656 lun = cmd->device->lun;
657 serial = cmd->serial_number;
658
659 /* Check active list for command command. */
660 spin_lock_irqsave(&ha->hardware_lock, flags);
661 for (i = 1; i < MAX_OUTSTANDING_COMMANDS; i++) {
662 sp = ha->outstanding_cmds[i];
663
664 if (sp == NULL)
665 continue;
666
667 if (sp->cmd != cmd)
668 continue;
669
670 DEBUG2(printk("%s(%ld): aborting sp %p from RISC. pid=%ld.\n",
671 __func__, ha->host_no, sp, serial));
672 DEBUG3(qla2x00_print_scsi_cmd(cmd));
673
674 spin_unlock_irqrestore(&ha->hardware_lock, flags);
675 if (ha->isp_ops.abort_command(ha, sp)) {
676 DEBUG2(printk("%s(%ld): abort_command "
677 "mbx failed.\n", __func__, ha->host_no));
678 } else {
679 DEBUG3(printk("%s(%ld): abort_command "
680 "mbx success.\n", __func__, ha->host_no));
681 wait = 1;
682 }
683 spin_lock_irqsave(&ha->hardware_lock, flags);
684
685 break;
686 }
687 spin_unlock_irqrestore(&ha->hardware_lock, flags);
688
689 /* Wait for the command to be returned. */
690 if (wait) {
691 if (qla2x00_eh_wait_on_command(ha, cmd) != QLA_SUCCESS) {
692 qla_printk(KERN_ERR, ha,
693 "scsi(%ld:%d:%d): Abort handler timed out -- %lx "
694 "%x.\n", ha->host_no, id, lun, serial, ret);
695 ret = FAILED;
696 }
697 }
698
699 qla_printk(KERN_INFO, ha,
700 "scsi(%ld:%d:%d): Abort command issued -- %d %lx %x.\n",
701 ha->host_no, id, lun, wait, serial, ret);
702
703 return ret;
704 }
705
706 /**************************************************************************
707 * qla2x00_eh_wait_for_pending_target_commands
708 *
709 * Description:
710 * Waits for all the commands to come back from the specified target.
711 *
712 * Input:
713 * ha - pointer to scsi_qla_host structure.
714 * t - target
715 * Returns:
716 * Either SUCCESS or FAILED.
717 *
718 * Note:
719 **************************************************************************/
720 static int
721 qla2x00_eh_wait_for_pending_target_commands(scsi_qla_host_t *ha, unsigned int t)
722 {
723 int cnt;
724 int status;
725 srb_t *sp;
726 struct scsi_cmnd *cmd;
727 unsigned long flags;
728
729 status = 0;
730
731 /*
732 * Waiting for all commands for the designated target in the active
733 * array
734 */
735 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
736 spin_lock_irqsave(&ha->hardware_lock, flags);
737 sp = ha->outstanding_cmds[cnt];
738 if (sp) {
739 cmd = sp->cmd;
740 spin_unlock_irqrestore(&ha->hardware_lock, flags);
741 if (cmd->device->id == t) {
742 if (!qla2x00_eh_wait_on_command(ha, cmd)) {
743 status = 1;
744 break;
745 }
746 }
747 } else {
748 spin_unlock_irqrestore(&ha->hardware_lock, flags);
749 }
750 }
751 return (status);
752 }
753
754
755 /**************************************************************************
756 * qla2xxx_eh_device_reset
757 *
758 * Description:
759 * The device reset function will reset the target and abort any
760 * executing commands.
761 *
762 * NOTE: The use of SP is undefined within this context. Do *NOT*
763 * attempt to use this value, even if you determine it is
764 * non-null.
765 *
766 * Input:
767 * cmd = Linux SCSI command packet of the command that cause the
768 * bus device reset.
769 *
770 * Returns:
771 * SUCCESS/FAILURE (defined as macro in scsi.h).
772 *
773 **************************************************************************/
774 static int
775 qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
776 {
777 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
778 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
779 int ret;
780 unsigned int id, lun;
781 unsigned long serial;
782
783 qla2x00_block_error_handler(cmd);
784
785 ret = FAILED;
786
787 id = cmd->device->id;
788 lun = cmd->device->lun;
789 serial = cmd->serial_number;
790
791 if (!fcport)
792 return ret;
793
794 qla_printk(KERN_INFO, ha,
795 "scsi(%ld:%d:%d): DEVICE RESET ISSUED.\n", ha->host_no, id, lun);
796
797 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
798 goto eh_dev_reset_done;
799
800 if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
801 if (qla2x00_device_reset(ha, fcport) == 0)
802 ret = SUCCESS;
803
804 #if defined(LOGOUT_AFTER_DEVICE_RESET)
805 if (ret == SUCCESS) {
806 if (fcport->flags & FC_FABRIC_DEVICE) {
807 ha->isp_ops.fabric_logout(ha, fcport->loop_id);
808 qla2x00_mark_device_lost(ha, fcport, 0, 0);
809 }
810 }
811 #endif
812 } else {
813 DEBUG2(printk(KERN_INFO
814 "%s failed: loop not ready\n",__func__));
815 }
816
817 if (ret == FAILED) {
818 DEBUG3(printk("%s(%ld): device reset failed\n",
819 __func__, ha->host_no));
820 qla_printk(KERN_INFO, ha, "%s: device reset failed\n",
821 __func__);
822
823 goto eh_dev_reset_done;
824 }
825
826 /* Flush outstanding commands. */
827 if (qla2x00_eh_wait_for_pending_target_commands(ha, id))
828 ret = FAILED;
829 if (ret == FAILED) {
830 DEBUG3(printk("%s(%ld): failed while waiting for commands\n",
831 __func__, ha->host_no));
832 qla_printk(KERN_INFO, ha,
833 "%s: failed while waiting for commands\n", __func__);
834 } else
835 qla_printk(KERN_INFO, ha,
836 "scsi(%ld:%d:%d): DEVICE RESET SUCCEEDED.\n", ha->host_no,
837 id, lun);
838 eh_dev_reset_done:
839 return ret;
840 }
841
842 /**************************************************************************
843 * qla2x00_eh_wait_for_pending_commands
844 *
845 * Description:
846 * Waits for all the commands to come back from the specified host.
847 *
848 * Input:
849 * ha - pointer to scsi_qla_host structure.
850 *
851 * Returns:
852 * 1 : SUCCESS
853 * 0 : FAILED
854 *
855 * Note:
856 **************************************************************************/
857 static int
858 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *ha)
859 {
860 int cnt;
861 int status;
862 srb_t *sp;
863 struct scsi_cmnd *cmd;
864 unsigned long flags;
865
866 status = 1;
867
868 /*
869 * Waiting for all commands for the designated target in the active
870 * array
871 */
872 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
873 spin_lock_irqsave(&ha->hardware_lock, flags);
874 sp = ha->outstanding_cmds[cnt];
875 if (sp) {
876 cmd = sp->cmd;
877 spin_unlock_irqrestore(&ha->hardware_lock, flags);
878 status = qla2x00_eh_wait_on_command(ha, cmd);
879 if (status == 0)
880 break;
881 }
882 else {
883 spin_unlock_irqrestore(&ha->hardware_lock, flags);
884 }
885 }
886 return (status);
887 }
888
889
890 /**************************************************************************
891 * qla2xxx_eh_bus_reset
892 *
893 * Description:
894 * The bus reset function will reset the bus and abort any executing
895 * commands.
896 *
897 * Input:
898 * cmd = Linux SCSI command packet of the command that cause the
899 * bus reset.
900 *
901 * Returns:
902 * SUCCESS/FAILURE (defined as macro in scsi.h).
903 *
904 **************************************************************************/
905 static int
906 qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
907 {
908 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
909 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
910 int ret;
911 unsigned int id, lun;
912 unsigned long serial;
913
914 qla2x00_block_error_handler(cmd);
915
916 ret = FAILED;
917
918 id = cmd->device->id;
919 lun = cmd->device->lun;
920 serial = cmd->serial_number;
921
922 if (!fcport)
923 return ret;
924
925 qla_printk(KERN_INFO, ha,
926 "scsi(%ld:%d:%d): LOOP RESET ISSUED.\n", ha->host_no, id, lun);
927
928 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS) {
929 DEBUG2(printk("%s failed:board disabled\n",__func__));
930 goto eh_bus_reset_done;
931 }
932
933 if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
934 if (qla2x00_loop_reset(ha) == QLA_SUCCESS)
935 ret = SUCCESS;
936 }
937 if (ret == FAILED)
938 goto eh_bus_reset_done;
939
940 /* Flush outstanding commands. */
941 if (!qla2x00_eh_wait_for_pending_commands(ha))
942 ret = FAILED;
943
944 eh_bus_reset_done:
945 qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
946 (ret == FAILED) ? "failed" : "succeded");
947
948 return ret;
949 }
950
951 /**************************************************************************
952 * qla2xxx_eh_host_reset
953 *
954 * Description:
955 * The reset function will reset the Adapter.
956 *
957 * Input:
958 * cmd = Linux SCSI command packet of the command that cause the
959 * adapter reset.
960 *
961 * Returns:
962 * Either SUCCESS or FAILED.
963 *
964 * Note:
965 **************************************************************************/
966 static int
967 qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
968 {
969 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
970 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
971 int ret;
972 unsigned int id, lun;
973 unsigned long serial;
974
975 qla2x00_block_error_handler(cmd);
976
977 ret = FAILED;
978
979 id = cmd->device->id;
980 lun = cmd->device->lun;
981 serial = cmd->serial_number;
982
983 if (!fcport)
984 return ret;
985
986 qla_printk(KERN_INFO, ha,
987 "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", ha->host_no, id, lun);
988
989 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
990 goto eh_host_reset_lock;
991
992 /*
993 * Fixme-may be dpc thread is active and processing
994 * loop_resync,so wait a while for it to
995 * be completed and then issue big hammer.Otherwise
996 * it may cause I/O failure as big hammer marks the
997 * devices as lost kicking of the port_down_timer
998 * while dpc is stuck for the mailbox to complete.
999 */
1000 qla2x00_wait_for_loop_ready(ha);
1001 set_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
1002 if (qla2x00_abort_isp(ha)) {
1003 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
1004 /* failed. schedule dpc to try */
1005 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
1006
1007 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
1008 goto eh_host_reset_lock;
1009 }
1010 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
1011
1012 /* Waiting for our command in done_queue to be returned to OS.*/
1013 if (qla2x00_eh_wait_for_pending_commands(ha))
1014 ret = SUCCESS;
1015
1016 eh_host_reset_lock:
1017 qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
1018 (ret == FAILED) ? "failed" : "succeded");
1019
1020 return ret;
1021 }
1022
1023 /*
1024 * qla2x00_loop_reset
1025 * Issue loop reset.
1026 *
1027 * Input:
1028 * ha = adapter block pointer.
1029 *
1030 * Returns:
1031 * 0 = success
1032 */
1033 static int
1034 qla2x00_loop_reset(scsi_qla_host_t *ha)
1035 {
1036 int status = QLA_SUCCESS;
1037 struct fc_port *fcport;
1038
1039 if (ha->flags.enable_lip_reset) {
1040 status = qla2x00_lip_reset(ha);
1041 }
1042
1043 if (status == QLA_SUCCESS && ha->flags.enable_target_reset) {
1044 list_for_each_entry(fcport, &ha->fcports, list) {
1045 if (fcport->port_type != FCT_TARGET)
1046 continue;
1047
1048 status = qla2x00_device_reset(ha, fcport);
1049 if (status != QLA_SUCCESS)
1050 break;
1051 }
1052 }
1053
1054 if (status == QLA_SUCCESS &&
1055 ((!ha->flags.enable_target_reset &&
1056 !ha->flags.enable_lip_reset) ||
1057 ha->flags.enable_lip_full_login)) {
1058
1059 status = qla2x00_full_login_lip(ha);
1060 }
1061
1062 /* Issue marker command only when we are going to start the I/O */
1063 ha->marker_needed = 1;
1064
1065 if (status) {
1066 /* Empty */
1067 DEBUG2_3(printk("%s(%ld): **** FAILED ****\n",
1068 __func__,
1069 ha->host_no));
1070 } else {
1071 /* Empty */
1072 DEBUG3(printk("%s(%ld): exiting normally.\n",
1073 __func__,
1074 ha->host_no));
1075 }
1076
1077 return(status);
1078 }
1079
1080 /*
1081 * qla2x00_device_reset
1082 * Issue bus device reset message to the target.
1083 *
1084 * Input:
1085 * ha = adapter block pointer.
1086 * t = SCSI ID.
1087 * TARGET_QUEUE_LOCK must be released.
1088 * ADAPTER_STATE_LOCK must be released.
1089 *
1090 * Context:
1091 * Kernel context.
1092 */
1093 static int
1094 qla2x00_device_reset(scsi_qla_host_t *ha, fc_port_t *reset_fcport)
1095 {
1096 /* Abort Target command will clear Reservation */
1097 return ha->isp_ops.abort_target(reset_fcport);
1098 }
1099
1100 static int
1101 qla2xxx_slave_alloc(struct scsi_device *sdev)
1102 {
1103 struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1104
1105 if (!rport || fc_remote_port_chkready(rport))
1106 return -ENXIO;
1107
1108 sdev->hostdata = *(fc_port_t **)rport->dd_data;
1109
1110 return 0;
1111 }
1112
1113 static int
1114 qla2xxx_slave_configure(struct scsi_device *sdev)
1115 {
1116 scsi_qla_host_t *ha = to_qla_host(sdev->host);
1117 struct fc_rport *rport = starget_to_rport(sdev->sdev_target);
1118
1119 if (sdev->tagged_supported)
1120 scsi_activate_tcq(sdev, ha->max_q_depth);
1121 else
1122 scsi_deactivate_tcq(sdev, ha->max_q_depth);
1123
1124 rport->dev_loss_tmo = ha->port_down_retry_count + 5;
1125
1126 return 0;
1127 }
1128
1129 static void
1130 qla2xxx_slave_destroy(struct scsi_device *sdev)
1131 {
1132 sdev->hostdata = NULL;
1133 }
1134
1135 static int
1136 qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth)
1137 {
1138 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1139 return sdev->queue_depth;
1140 }
1141
1142 static int
1143 qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1144 {
1145 if (sdev->tagged_supported) {
1146 scsi_set_tag_type(sdev, tag_type);
1147 if (tag_type)
1148 scsi_activate_tcq(sdev, sdev->queue_depth);
1149 else
1150 scsi_deactivate_tcq(sdev, sdev->queue_depth);
1151 } else
1152 tag_type = 0;
1153
1154 return tag_type;
1155 }
1156
1157 /**
1158 * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1159 * @ha: HA context
1160 *
1161 * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1162 * supported addressing method.
1163 */
1164 static void
1165 qla2x00_config_dma_addressing(scsi_qla_host_t *ha)
1166 {
1167 /* Assume a 32bit DMA mask. */
1168 ha->flags.enable_64bit_addressing = 0;
1169
1170 if (!dma_set_mask(&ha->pdev->dev, DMA_64BIT_MASK)) {
1171 /* Any upper-dword bits set? */
1172 if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1173 !pci_set_consistent_dma_mask(ha->pdev, DMA_64BIT_MASK)) {
1174 /* Ok, a 64bit DMA mask is applicable. */
1175 ha->flags.enable_64bit_addressing = 1;
1176 ha->isp_ops.calc_req_entries = qla2x00_calc_iocbs_64;
1177 ha->isp_ops.build_iocbs = qla2x00_build_scsi_iocbs_64;
1178 return;
1179 }
1180 }
1181
1182 dma_set_mask(&ha->pdev->dev, DMA_32BIT_MASK);
1183 pci_set_consistent_dma_mask(ha->pdev, DMA_32BIT_MASK);
1184 }
1185
1186 static inline void
1187 qla2x00_set_isp_flags(scsi_qla_host_t *ha)
1188 {
1189 ha->device_type = DT_EXTENDED_IDS;
1190 switch (ha->pdev->device) {
1191 case PCI_DEVICE_ID_QLOGIC_ISP2100:
1192 ha->device_type |= DT_ISP2100;
1193 ha->device_type &= ~DT_EXTENDED_IDS;
1194 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1195 break;
1196 case PCI_DEVICE_ID_QLOGIC_ISP2200:
1197 ha->device_type |= DT_ISP2200;
1198 ha->device_type &= ~DT_EXTENDED_IDS;
1199 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1200 break;
1201 case PCI_DEVICE_ID_QLOGIC_ISP2300:
1202 ha->device_type |= DT_ISP2300;
1203 ha->device_type |= DT_ZIO_SUPPORTED;
1204 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1205 break;
1206 case PCI_DEVICE_ID_QLOGIC_ISP2312:
1207 ha->device_type |= DT_ISP2312;
1208 ha->device_type |= DT_ZIO_SUPPORTED;
1209 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1210 break;
1211 case PCI_DEVICE_ID_QLOGIC_ISP2322:
1212 ha->device_type |= DT_ISP2322;
1213 ha->device_type |= DT_ZIO_SUPPORTED;
1214 if (ha->pdev->subsystem_vendor == 0x1028 &&
1215 ha->pdev->subsystem_device == 0x0170)
1216 ha->device_type |= DT_OEM_001;
1217 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1218 break;
1219 case PCI_DEVICE_ID_QLOGIC_ISP6312:
1220 ha->device_type |= DT_ISP6312;
1221 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1222 break;
1223 case PCI_DEVICE_ID_QLOGIC_ISP6322:
1224 ha->device_type |= DT_ISP6322;
1225 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1226 break;
1227 case PCI_DEVICE_ID_QLOGIC_ISP2422:
1228 ha->device_type |= DT_ISP2422;
1229 ha->device_type |= DT_ZIO_SUPPORTED;
1230 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1231 break;
1232 case PCI_DEVICE_ID_QLOGIC_ISP2432:
1233 ha->device_type |= DT_ISP2432;
1234 ha->device_type |= DT_ZIO_SUPPORTED;
1235 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1236 break;
1237 case PCI_DEVICE_ID_QLOGIC_ISP5422:
1238 ha->device_type |= DT_ISP5422;
1239 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1240 break;
1241 case PCI_DEVICE_ID_QLOGIC_ISP5432:
1242 ha->device_type |= DT_ISP5432;
1243 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1244 break;
1245 }
1246 }
1247
1248 static int
1249 qla2x00_iospace_config(scsi_qla_host_t *ha)
1250 {
1251 unsigned long pio, pio_len, pio_flags;
1252 unsigned long mmio, mmio_len, mmio_flags;
1253
1254 /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1255 pio = pci_resource_start(ha->pdev, 0);
1256 pio_len = pci_resource_len(ha->pdev, 0);
1257 pio_flags = pci_resource_flags(ha->pdev, 0);
1258 if (pio_flags & IORESOURCE_IO) {
1259 if (pio_len < MIN_IOBASE_LEN) {
1260 qla_printk(KERN_WARNING, ha,
1261 "Invalid PCI I/O region size (%s)...\n",
1262 pci_name(ha->pdev));
1263 pio = 0;
1264 }
1265 } else {
1266 qla_printk(KERN_WARNING, ha,
1267 "region #0 not a PIO resource (%s)...\n",
1268 pci_name(ha->pdev));
1269 pio = 0;
1270 }
1271
1272 /* Use MMIO operations for all accesses. */
1273 mmio = pci_resource_start(ha->pdev, 1);
1274 mmio_len = pci_resource_len(ha->pdev, 1);
1275 mmio_flags = pci_resource_flags(ha->pdev, 1);
1276
1277 if (!(mmio_flags & IORESOURCE_MEM)) {
1278 qla_printk(KERN_ERR, ha,
1279 "region #0 not an MMIO resource (%s), aborting\n",
1280 pci_name(ha->pdev));
1281 goto iospace_error_exit;
1282 }
1283 if (mmio_len < MIN_IOBASE_LEN) {
1284 qla_printk(KERN_ERR, ha,
1285 "Invalid PCI mem region size (%s), aborting\n",
1286 pci_name(ha->pdev));
1287 goto iospace_error_exit;
1288 }
1289
1290 if (pci_request_regions(ha->pdev, QLA2XXX_DRIVER_NAME)) {
1291 qla_printk(KERN_WARNING, ha,
1292 "Failed to reserve PIO/MMIO regions (%s)\n",
1293 pci_name(ha->pdev));
1294
1295 goto iospace_error_exit;
1296 }
1297
1298 ha->pio_address = pio;
1299 ha->pio_length = pio_len;
1300 ha->iobase = ioremap(mmio, MIN_IOBASE_LEN);
1301 if (!ha->iobase) {
1302 qla_printk(KERN_ERR, ha,
1303 "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
1304
1305 goto iospace_error_exit;
1306 }
1307
1308 return (0);
1309
1310 iospace_error_exit:
1311 return (-ENOMEM);
1312 }
1313
1314 static void
1315 qla2x00_enable_intrs(scsi_qla_host_t *ha)
1316 {
1317 unsigned long flags = 0;
1318 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1319
1320 spin_lock_irqsave(&ha->hardware_lock, flags);
1321 ha->interrupts_on = 1;
1322 /* enable risc and host interrupts */
1323 WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1324 RD_REG_WORD(&reg->ictrl);
1325 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1326
1327 }
1328
1329 static void
1330 qla2x00_disable_intrs(scsi_qla_host_t *ha)
1331 {
1332 unsigned long flags = 0;
1333 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1334
1335 spin_lock_irqsave(&ha->hardware_lock, flags);
1336 ha->interrupts_on = 0;
1337 /* disable risc and host interrupts */
1338 WRT_REG_WORD(&reg->ictrl, 0);
1339 RD_REG_WORD(&reg->ictrl);
1340 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1341 }
1342
1343 static void
1344 qla24xx_enable_intrs(scsi_qla_host_t *ha)
1345 {
1346 unsigned long flags = 0;
1347 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1348
1349 spin_lock_irqsave(&ha->hardware_lock, flags);
1350 ha->interrupts_on = 1;
1351 WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1352 RD_REG_DWORD(&reg->ictrl);
1353 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1354 }
1355
1356 static void
1357 qla24xx_disable_intrs(scsi_qla_host_t *ha)
1358 {
1359 unsigned long flags = 0;
1360 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1361
1362 spin_lock_irqsave(&ha->hardware_lock, flags);
1363 ha->interrupts_on = 0;
1364 WRT_REG_DWORD(&reg->ictrl, 0);
1365 RD_REG_DWORD(&reg->ictrl);
1366 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1367 }
1368
1369 /*
1370 * PCI driver interface
1371 */
1372 static int __devinit
1373 qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
1374 {
1375 int ret = -ENODEV;
1376 device_reg_t __iomem *reg;
1377 struct Scsi_Host *host;
1378 scsi_qla_host_t *ha;
1379 unsigned long flags = 0;
1380 unsigned long wait_switch = 0;
1381 char pci_info[20];
1382 char fw_str[30];
1383 fc_port_t *fcport;
1384 struct scsi_host_template *sht;
1385
1386 if (pci_enable_device(pdev))
1387 goto probe_out;
1388
1389 sht = &qla2x00_driver_template;
1390 if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
1391 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432)
1392 sht = &qla24xx_driver_template;
1393 host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
1394 if (host == NULL) {
1395 printk(KERN_WARNING
1396 "qla2xxx: Couldn't allocate host from scsi layer!\n");
1397 goto probe_disable_device;
1398 }
1399
1400 /* Clear our data area */
1401 ha = (scsi_qla_host_t *)host->hostdata;
1402 memset(ha, 0, sizeof(scsi_qla_host_t));
1403
1404 ha->pdev = pdev;
1405 ha->host = host;
1406 ha->host_no = host->host_no;
1407 sprintf(ha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, ha->host_no);
1408
1409 /* Set ISP-type information. */
1410 qla2x00_set_isp_flags(ha);
1411
1412 /* Configure PCI I/O space */
1413 ret = qla2x00_iospace_config(ha);
1414 if (ret)
1415 goto probe_failed;
1416
1417 qla_printk(KERN_INFO, ha,
1418 "Found an ISP%04X, irq %d, iobase 0x%p\n", pdev->device, pdev->irq,
1419 ha->iobase);
1420
1421 spin_lock_init(&ha->hardware_lock);
1422
1423 ha->prev_topology = 0;
1424 ha->init_cb_size = sizeof(init_cb_t);
1425 ha->mgmt_svr_loop_id = MANAGEMENT_SERVER;
1426 ha->link_data_rate = PORT_SPEED_UNKNOWN;
1427 ha->optrom_size = OPTROM_SIZE_2300;
1428
1429 ha->max_q_depth = MAX_Q_DEPTH;
1430 if (ql2xmaxqdepth != 0 && ql2xmaxqdepth <= 0xffffU)
1431 ha->max_q_depth = ql2xmaxqdepth;
1432
1433 /* Assign ISP specific operations. */
1434 ha->isp_ops.pci_config = qla2100_pci_config;
1435 ha->isp_ops.reset_chip = qla2x00_reset_chip;
1436 ha->isp_ops.chip_diag = qla2x00_chip_diag;
1437 ha->isp_ops.config_rings = qla2x00_config_rings;
1438 ha->isp_ops.reset_adapter = qla2x00_reset_adapter;
1439 ha->isp_ops.nvram_config = qla2x00_nvram_config;
1440 ha->isp_ops.update_fw_options = qla2x00_update_fw_options;
1441 ha->isp_ops.load_risc = qla2x00_load_risc;
1442 ha->isp_ops.pci_info_str = qla2x00_pci_info_str;
1443 ha->isp_ops.fw_version_str = qla2x00_fw_version_str;
1444 ha->isp_ops.intr_handler = qla2100_intr_handler;
1445 ha->isp_ops.enable_intrs = qla2x00_enable_intrs;
1446 ha->isp_ops.disable_intrs = qla2x00_disable_intrs;
1447 ha->isp_ops.abort_command = qla2x00_abort_command;
1448 ha->isp_ops.abort_target = qla2x00_abort_target;
1449 ha->isp_ops.fabric_login = qla2x00_login_fabric;
1450 ha->isp_ops.fabric_logout = qla2x00_fabric_logout;
1451 ha->isp_ops.calc_req_entries = qla2x00_calc_iocbs_32;
1452 ha->isp_ops.build_iocbs = qla2x00_build_scsi_iocbs_32;
1453 ha->isp_ops.prep_ms_iocb = qla2x00_prep_ms_iocb;
1454 ha->isp_ops.prep_ms_fdmi_iocb = qla2x00_prep_ms_fdmi_iocb;
1455 ha->isp_ops.read_nvram = qla2x00_read_nvram_data;
1456 ha->isp_ops.write_nvram = qla2x00_write_nvram_data;
1457 ha->isp_ops.fw_dump = qla2100_fw_dump;
1458 ha->isp_ops.read_optrom = qla2x00_read_optrom_data;
1459 ha->isp_ops.write_optrom = qla2x00_write_optrom_data;
1460 if (IS_QLA2100(ha)) {
1461 host->max_id = MAX_TARGETS_2100;
1462 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
1463 ha->request_q_length = REQUEST_ENTRY_CNT_2100;
1464 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1465 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1466 host->sg_tablesize = 32;
1467 ha->gid_list_info_size = 4;
1468 } else if (IS_QLA2200(ha)) {
1469 host->max_id = MAX_TARGETS_2200;
1470 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1471 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1472 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1473 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1474 ha->gid_list_info_size = 4;
1475 } else if (IS_QLA23XX(ha)) {
1476 host->max_id = MAX_TARGETS_2200;
1477 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1478 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1479 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1480 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1481 ha->isp_ops.pci_config = qla2300_pci_config;
1482 ha->isp_ops.intr_handler = qla2300_intr_handler;
1483 ha->isp_ops.fw_dump = qla2300_fw_dump;
1484 ha->isp_ops.beacon_on = qla2x00_beacon_on;
1485 ha->isp_ops.beacon_off = qla2x00_beacon_off;
1486 ha->isp_ops.beacon_blink = qla2x00_beacon_blink;
1487 ha->gid_list_info_size = 6;
1488 if (IS_QLA2322(ha) || IS_QLA6322(ha))
1489 ha->optrom_size = OPTROM_SIZE_2322;
1490 } else if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
1491 host->max_id = MAX_TARGETS_2200;
1492 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1493 ha->request_q_length = REQUEST_ENTRY_CNT_24XX;
1494 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1495 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1496 ha->init_cb_size = sizeof(struct init_cb_24xx);
1497 ha->mgmt_svr_loop_id = 10;
1498 ha->isp_ops.pci_config = qla24xx_pci_config;
1499 ha->isp_ops.reset_chip = qla24xx_reset_chip;
1500 ha->isp_ops.chip_diag = qla24xx_chip_diag;
1501 ha->isp_ops.config_rings = qla24xx_config_rings;
1502 ha->isp_ops.reset_adapter = qla24xx_reset_adapter;
1503 ha->isp_ops.nvram_config = qla24xx_nvram_config;
1504 ha->isp_ops.update_fw_options = qla24xx_update_fw_options;
1505 ha->isp_ops.load_risc = qla24xx_load_risc;
1506 ha->isp_ops.pci_info_str = qla24xx_pci_info_str;
1507 ha->isp_ops.fw_version_str = qla24xx_fw_version_str;
1508 ha->isp_ops.intr_handler = qla24xx_intr_handler;
1509 ha->isp_ops.enable_intrs = qla24xx_enable_intrs;
1510 ha->isp_ops.disable_intrs = qla24xx_disable_intrs;
1511 ha->isp_ops.abort_command = qla24xx_abort_command;
1512 ha->isp_ops.abort_target = qla24xx_abort_target;
1513 ha->isp_ops.fabric_login = qla24xx_login_fabric;
1514 ha->isp_ops.fabric_logout = qla24xx_fabric_logout;
1515 ha->isp_ops.prep_ms_iocb = qla24xx_prep_ms_iocb;
1516 ha->isp_ops.prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb;
1517 ha->isp_ops.read_nvram = qla24xx_read_nvram_data;
1518 ha->isp_ops.write_nvram = qla24xx_write_nvram_data;
1519 ha->isp_ops.fw_dump = qla24xx_fw_dump;
1520 ha->isp_ops.read_optrom = qla24xx_read_optrom_data;
1521 ha->isp_ops.write_optrom = qla24xx_write_optrom_data;
1522 ha->isp_ops.beacon_on = qla24xx_beacon_on;
1523 ha->isp_ops.beacon_off = qla24xx_beacon_off;
1524 ha->isp_ops.beacon_blink = qla24xx_beacon_blink;
1525 ha->gid_list_info_size = 8;
1526 ha->optrom_size = OPTROM_SIZE_24XX;
1527 }
1528 host->can_queue = ha->request_q_length + 128;
1529
1530 /* load the F/W, read paramaters, and init the H/W */
1531 ha->instance = num_hosts;
1532
1533 init_MUTEX(&ha->mbx_cmd_sem);
1534 init_MUTEX_LOCKED(&ha->mbx_intr_sem);
1535
1536 INIT_LIST_HEAD(&ha->list);
1537 INIT_LIST_HEAD(&ha->fcports);
1538
1539 /*
1540 * These locks are used to prevent more than one CPU
1541 * from modifying the queue at the same time. The
1542 * higher level "host_lock" will reduce most
1543 * contention for these locks.
1544 */
1545 spin_lock_init(&ha->mbx_reg_lock);
1546
1547 qla2x00_config_dma_addressing(ha);
1548 if (qla2x00_mem_alloc(ha)) {
1549 qla_printk(KERN_WARNING, ha,
1550 "[ERROR] Failed to allocate memory for adapter\n");
1551
1552 ret = -ENOMEM;
1553 goto probe_failed;
1554 }
1555
1556 if (qla2x00_initialize_adapter(ha) &&
1557 !(ha->device_flags & DFLG_NO_CABLE)) {
1558
1559 qla_printk(KERN_WARNING, ha,
1560 "Failed to initialize adapter\n");
1561
1562 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
1563 "Adapter flags %x.\n",
1564 ha->host_no, ha->device_flags));
1565
1566 ret = -ENODEV;
1567 goto probe_failed;
1568 }
1569
1570 /*
1571 * Startup the kernel thread for this host adapter
1572 */
1573 ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
1574 "%s_dpc", ha->host_str);
1575 if (IS_ERR(ha->dpc_thread)) {
1576 qla_printk(KERN_WARNING, ha,
1577 "Unable to start DPC thread!\n");
1578 ret = PTR_ERR(ha->dpc_thread);
1579 goto probe_failed;
1580 }
1581
1582 host->this_id = 255;
1583 host->cmd_per_lun = 3;
1584 host->unique_id = ha->instance;
1585 host->max_cmd_len = MAX_CMDSZ;
1586 host->max_channel = MAX_BUSES - 1;
1587 host->max_lun = MAX_LUNS;
1588 host->transportt = qla2xxx_transport_template;
1589
1590 ret = request_irq(pdev->irq, ha->isp_ops.intr_handler,
1591 IRQF_DISABLED|IRQF_SHARED, QLA2XXX_DRIVER_NAME, ha);
1592 if (ret) {
1593 qla_printk(KERN_WARNING, ha,
1594 "Failed to reserve interrupt %d already in use.\n",
1595 pdev->irq);
1596 goto probe_failed;
1597 }
1598 host->irq = pdev->irq;
1599
1600 /* Initialized the timer */
1601 qla2x00_start_timer(ha, qla2x00_timer, WATCH_INTERVAL);
1602
1603 DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
1604 ha->host_no, ha));
1605
1606 ha->isp_ops.disable_intrs(ha);
1607
1608 spin_lock_irqsave(&ha->hardware_lock, flags);
1609 reg = ha->iobase;
1610 if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
1611 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_HOST_INT);
1612 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_RISC_INT);
1613 } else {
1614 WRT_REG_WORD(&reg->isp.semaphore, 0);
1615 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_RISC_INT);
1616 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_HOST_INT);
1617
1618 /* Enable proper parity */
1619 if (!IS_QLA2100(ha) && !IS_QLA2200(ha)) {
1620 if (IS_QLA2300(ha))
1621 /* SRAM parity */
1622 WRT_REG_WORD(&reg->isp.hccr,
1623 (HCCR_ENABLE_PARITY + 0x1));
1624 else
1625 /* SRAM, Instruction RAM and GP RAM parity */
1626 WRT_REG_WORD(&reg->isp.hccr,
1627 (HCCR_ENABLE_PARITY + 0x7));
1628 }
1629 }
1630 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1631
1632 ha->isp_ops.enable_intrs(ha);
1633
1634 /* v2.19.5b6 */
1635 /*
1636 * Wait around max loop_reset_delay secs for the devices to come
1637 * on-line. We don't want Linux scanning before we are ready.
1638 *
1639 */
1640 for (wait_switch = jiffies + (ha->loop_reset_delay * HZ);
1641 time_before(jiffies,wait_switch) &&
1642 !(ha->device_flags & (DFLG_NO_CABLE | DFLG_FABRIC_DEVICES))
1643 && (ha->device_flags & SWITCH_FOUND) ;) {
1644
1645 qla2x00_check_fabric_devices(ha);
1646
1647 msleep(10);
1648 }
1649
1650 pci_set_drvdata(pdev, ha);
1651 ha->flags.init_done = 1;
1652 num_hosts++;
1653
1654 ret = scsi_add_host(host, &pdev->dev);
1655 if (ret)
1656 goto probe_failed;
1657
1658 qla2x00_alloc_sysfs_attr(ha);
1659
1660 qla2x00_init_host_attr(ha);
1661
1662 qla_printk(KERN_INFO, ha, "\n"
1663 " QLogic Fibre Channel HBA Driver: %s\n"
1664 " QLogic %s - %s\n"
1665 " ISP%04X: %s @ %s hdma%c, host#=%ld, fw=%s\n",
1666 qla2x00_version_str, ha->model_number,
1667 ha->model_desc ? ha->model_desc: "", pdev->device,
1668 ha->isp_ops.pci_info_str(ha, pci_info), pci_name(pdev),
1669 ha->flags.enable_64bit_addressing ? '+': '-', ha->host_no,
1670 ha->isp_ops.fw_version_str(ha, fw_str));
1671
1672 /* Go with fc_rport registration. */
1673 list_for_each_entry(fcport, &ha->fcports, list)
1674 qla2x00_reg_remote_port(ha, fcport);
1675
1676 return 0;
1677
1678 probe_failed:
1679 qla2x00_free_device(ha);
1680
1681 scsi_host_put(host);
1682
1683 probe_disable_device:
1684 pci_disable_device(pdev);
1685
1686 probe_out:
1687 return ret;
1688 }
1689
1690 static void __devexit
1691 qla2x00_remove_one(struct pci_dev *pdev)
1692 {
1693 scsi_qla_host_t *ha;
1694
1695 ha = pci_get_drvdata(pdev);
1696
1697 qla2x00_free_sysfs_attr(ha);
1698
1699 fc_remove_host(ha->host);
1700
1701 scsi_remove_host(ha->host);
1702
1703 qla2x00_free_device(ha);
1704
1705 scsi_host_put(ha->host);
1706
1707 pci_set_drvdata(pdev, NULL);
1708 }
1709
1710 static void
1711 qla2x00_free_device(scsi_qla_host_t *ha)
1712 {
1713 /* Disable timer */
1714 if (ha->timer_active)
1715 qla2x00_stop_timer(ha);
1716
1717 /* Kill the kernel thread for this host */
1718 if (ha->dpc_thread) {
1719 struct task_struct *t = ha->dpc_thread;
1720
1721 /*
1722 * qla2xxx_wake_dpc checks for ->dpc_thread
1723 * so we need to zero it out.
1724 */
1725 ha->dpc_thread = NULL;
1726 kthread_stop(t);
1727 }
1728
1729 if (ha->eft)
1730 qla2x00_trace_control(ha, TC_DISABLE, 0, 0);
1731
1732 ha->flags.online = 0;
1733
1734 /* Stop currently executing firmware. */
1735 qla2x00_try_to_stop_firmware(ha);
1736
1737 /* turn-off interrupts on the card */
1738 if (ha->interrupts_on)
1739 ha->isp_ops.disable_intrs(ha);
1740
1741 qla2x00_mem_free(ha);
1742
1743 /* Detach interrupts */
1744 if (ha->host->irq)
1745 free_irq(ha->host->irq, ha);
1746
1747 /* release io space registers */
1748 if (ha->iobase)
1749 iounmap(ha->iobase);
1750 pci_release_regions(ha->pdev);
1751
1752 pci_disable_device(ha->pdev);
1753 }
1754
1755 static inline void
1756 qla2x00_schedule_rport_del(struct scsi_qla_host *ha, fc_port_t *fcport,
1757 int defer)
1758 {
1759 unsigned long flags;
1760 struct fc_rport *rport;
1761
1762 if (!fcport->rport)
1763 return;
1764
1765 rport = fcport->rport;
1766 if (defer) {
1767 spin_lock_irqsave(&fcport->rport_lock, flags);
1768 fcport->drport = rport;
1769 fcport->rport = NULL;
1770 *(fc_port_t **)rport->dd_data = NULL;
1771 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1772 set_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags);
1773 } else {
1774 spin_lock_irqsave(&fcport->rport_lock, flags);
1775 fcport->rport = NULL;
1776 *(fc_port_t **)rport->dd_data = NULL;
1777 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1778 fc_remote_port_delete(rport);
1779 }
1780 }
1781
1782 /*
1783 * qla2x00_mark_device_lost Updates fcport state when device goes offline.
1784 *
1785 * Input: ha = adapter block pointer. fcport = port structure pointer.
1786 *
1787 * Return: None.
1788 *
1789 * Context:
1790 */
1791 void qla2x00_mark_device_lost(scsi_qla_host_t *ha, fc_port_t *fcport,
1792 int do_login, int defer)
1793 {
1794 if (atomic_read(&fcport->state) == FCS_ONLINE)
1795 qla2x00_schedule_rport_del(ha, fcport, defer);
1796
1797 /*
1798 * We may need to retry the login, so don't change the state of the
1799 * port but do the retries.
1800 */
1801 if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
1802 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1803
1804 if (!do_login)
1805 return;
1806
1807 if (fcport->login_retry == 0) {
1808 fcport->login_retry = ha->login_retry_count;
1809 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
1810
1811 DEBUG(printk("scsi(%ld): Port login retry: "
1812 "%02x%02x%02x%02x%02x%02x%02x%02x, "
1813 "id = 0x%04x retry cnt=%d\n",
1814 ha->host_no,
1815 fcport->port_name[0],
1816 fcport->port_name[1],
1817 fcport->port_name[2],
1818 fcport->port_name[3],
1819 fcport->port_name[4],
1820 fcport->port_name[5],
1821 fcport->port_name[6],
1822 fcport->port_name[7],
1823 fcport->loop_id,
1824 fcport->login_retry));
1825 }
1826 }
1827
1828 /*
1829 * qla2x00_mark_all_devices_lost
1830 * Updates fcport state when device goes offline.
1831 *
1832 * Input:
1833 * ha = adapter block pointer.
1834 * fcport = port structure pointer.
1835 *
1836 * Return:
1837 * None.
1838 *
1839 * Context:
1840 */
1841 void
1842 qla2x00_mark_all_devices_lost(scsi_qla_host_t *ha, int defer)
1843 {
1844 fc_port_t *fcport;
1845
1846 list_for_each_entry(fcport, &ha->fcports, list) {
1847 if (fcport->port_type != FCT_TARGET)
1848 continue;
1849
1850 /*
1851 * No point in marking the device as lost, if the device is
1852 * already DEAD.
1853 */
1854 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
1855 continue;
1856 if (atomic_read(&fcport->state) == FCS_ONLINE)
1857 qla2x00_schedule_rport_del(ha, fcport, defer);
1858 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1859 }
1860
1861 if (defer)
1862 qla2xxx_wake_dpc(ha);
1863 }
1864
1865 /*
1866 * qla2x00_mem_alloc
1867 * Allocates adapter memory.
1868 *
1869 * Returns:
1870 * 0 = success.
1871 * 1 = failure.
1872 */
1873 static uint8_t
1874 qla2x00_mem_alloc(scsi_qla_host_t *ha)
1875 {
1876 char name[16];
1877 uint8_t status = 1;
1878 int retry= 10;
1879
1880 do {
1881 /*
1882 * This will loop only once if everything goes well, else some
1883 * number of retries will be performed to get around a kernel
1884 * bug where available mem is not allocated until after a
1885 * little delay and a retry.
1886 */
1887 ha->request_ring = dma_alloc_coherent(&ha->pdev->dev,
1888 (ha->request_q_length + 1) * sizeof(request_t),
1889 &ha->request_dma, GFP_KERNEL);
1890 if (ha->request_ring == NULL) {
1891 qla_printk(KERN_WARNING, ha,
1892 "Memory Allocation failed - request_ring\n");
1893
1894 qla2x00_mem_free(ha);
1895 msleep(100);
1896
1897 continue;
1898 }
1899
1900 ha->response_ring = dma_alloc_coherent(&ha->pdev->dev,
1901 (ha->response_q_length + 1) * sizeof(response_t),
1902 &ha->response_dma, GFP_KERNEL);
1903 if (ha->response_ring == NULL) {
1904 qla_printk(KERN_WARNING, ha,
1905 "Memory Allocation failed - response_ring\n");
1906
1907 qla2x00_mem_free(ha);
1908 msleep(100);
1909
1910 continue;
1911 }
1912
1913 ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
1914 &ha->gid_list_dma, GFP_KERNEL);
1915 if (ha->gid_list == NULL) {
1916 qla_printk(KERN_WARNING, ha,
1917 "Memory Allocation failed - gid_list\n");
1918
1919 qla2x00_mem_free(ha);
1920 msleep(100);
1921
1922 continue;
1923 }
1924
1925 snprintf(name, sizeof(name), "%s_%ld", QLA2XXX_DRIVER_NAME,
1926 ha->host_no);
1927 ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
1928 DMA_POOL_SIZE, 8, 0);
1929 if (ha->s_dma_pool == NULL) {
1930 qla_printk(KERN_WARNING, ha,
1931 "Memory Allocation failed - s_dma_pool\n");
1932
1933 qla2x00_mem_free(ha);
1934 msleep(100);
1935
1936 continue;
1937 }
1938
1939 /* get consistent memory allocated for init control block */
1940 ha->init_cb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
1941 &ha->init_cb_dma);
1942 if (ha->init_cb == NULL) {
1943 qla_printk(KERN_WARNING, ha,
1944 "Memory Allocation failed - init_cb\n");
1945
1946 qla2x00_mem_free(ha);
1947 msleep(100);
1948
1949 continue;
1950 }
1951 memset(ha->init_cb, 0, ha->init_cb_size);
1952
1953 if (qla2x00_allocate_sp_pool(ha)) {
1954 qla_printk(KERN_WARNING, ha,
1955 "Memory Allocation failed - "
1956 "qla2x00_allocate_sp_pool()\n");
1957
1958 qla2x00_mem_free(ha);
1959 msleep(100);
1960
1961 continue;
1962 }
1963
1964 /* Allocate memory for SNS commands */
1965 if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
1966 /* Get consistent memory allocated for SNS commands */
1967 ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
1968 sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma,
1969 GFP_KERNEL);
1970 if (ha->sns_cmd == NULL) {
1971 /* error */
1972 qla_printk(KERN_WARNING, ha,
1973 "Memory Allocation failed - sns_cmd\n");
1974
1975 qla2x00_mem_free(ha);
1976 msleep(100);
1977
1978 continue;
1979 }
1980 memset(ha->sns_cmd, 0, sizeof(struct sns_cmd_pkt));
1981 } else {
1982 /* Get consistent memory allocated for MS IOCB */
1983 ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
1984 &ha->ms_iocb_dma);
1985 if (ha->ms_iocb == NULL) {
1986 /* error */
1987 qla_printk(KERN_WARNING, ha,
1988 "Memory Allocation failed - ms_iocb\n");
1989
1990 qla2x00_mem_free(ha);
1991 msleep(100);
1992
1993 continue;
1994 }
1995 memset(ha->ms_iocb, 0, sizeof(ms_iocb_entry_t));
1996
1997 /*
1998 * Get consistent memory allocated for CT SNS
1999 * commands
2000 */
2001 ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
2002 sizeof(struct ct_sns_pkt), &ha->ct_sns_dma,
2003 GFP_KERNEL);
2004 if (ha->ct_sns == NULL) {
2005 /* error */
2006 qla_printk(KERN_WARNING, ha,
2007 "Memory Allocation failed - ct_sns\n");
2008
2009 qla2x00_mem_free(ha);
2010 msleep(100);
2011
2012 continue;
2013 }
2014 memset(ha->ct_sns, 0, sizeof(struct ct_sns_pkt));
2015
2016 if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
2017 /*
2018 * Get consistent memory allocated for SFP
2019 * block.
2020 */
2021 ha->sfp_data = dma_pool_alloc(ha->s_dma_pool,
2022 GFP_KERNEL, &ha->sfp_data_dma);
2023 if (ha->sfp_data == NULL) {
2024 qla_printk(KERN_WARNING, ha,
2025 "Memory Allocation failed - "
2026 "sfp_data\n");
2027
2028 qla2x00_mem_free(ha);
2029 msleep(100);
2030
2031 continue;
2032 }
2033 memset(ha->sfp_data, 0, SFP_BLOCK_SIZE);
2034 }
2035 }
2036
2037 /* Done all allocations without any error. */
2038 status = 0;
2039
2040 } while (retry-- && status != 0);
2041
2042 if (status) {
2043 printk(KERN_WARNING
2044 "%s(): **** FAILED ****\n", __func__);
2045 }
2046
2047 return(status);
2048 }
2049
2050 /*
2051 * qla2x00_mem_free
2052 * Frees all adapter allocated memory.
2053 *
2054 * Input:
2055 * ha = adapter block pointer.
2056 */
2057 static void
2058 qla2x00_mem_free(scsi_qla_host_t *ha)
2059 {
2060 struct list_head *fcpl, *fcptemp;
2061 fc_port_t *fcport;
2062
2063 if (ha == NULL) {
2064 /* error */
2065 DEBUG2(printk("%s(): ERROR invalid ha pointer.\n", __func__));
2066 return;
2067 }
2068
2069 /* free sp pool */
2070 qla2x00_free_sp_pool(ha);
2071
2072 if (ha->fw_dump) {
2073 if (ha->eft)
2074 dma_free_coherent(&ha->pdev->dev,
2075 ntohl(ha->fw_dump->eft_size), ha->eft, ha->eft_dma);
2076 vfree(ha->fw_dump);
2077 }
2078
2079 if (ha->sns_cmd)
2080 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
2081 ha->sns_cmd, ha->sns_cmd_dma);
2082
2083 if (ha->ct_sns)
2084 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2085 ha->ct_sns, ha->ct_sns_dma);
2086
2087 if (ha->sfp_data)
2088 dma_pool_free(ha->s_dma_pool, ha->sfp_data, ha->sfp_data_dma);
2089
2090 if (ha->ms_iocb)
2091 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2092
2093 if (ha->init_cb)
2094 dma_pool_free(ha->s_dma_pool, ha->init_cb, ha->init_cb_dma);
2095
2096 if (ha->s_dma_pool)
2097 dma_pool_destroy(ha->s_dma_pool);
2098
2099 if (ha->gid_list)
2100 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2101 ha->gid_list_dma);
2102
2103 if (ha->response_ring)
2104 dma_free_coherent(&ha->pdev->dev,
2105 (ha->response_q_length + 1) * sizeof(response_t),
2106 ha->response_ring, ha->response_dma);
2107
2108 if (ha->request_ring)
2109 dma_free_coherent(&ha->pdev->dev,
2110 (ha->request_q_length + 1) * sizeof(request_t),
2111 ha->request_ring, ha->request_dma);
2112
2113 ha->eft = NULL;
2114 ha->eft_dma = 0;
2115 ha->sns_cmd = NULL;
2116 ha->sns_cmd_dma = 0;
2117 ha->ct_sns = NULL;
2118 ha->ct_sns_dma = 0;
2119 ha->ms_iocb = NULL;
2120 ha->ms_iocb_dma = 0;
2121 ha->init_cb = NULL;
2122 ha->init_cb_dma = 0;
2123
2124 ha->s_dma_pool = NULL;
2125
2126 ha->gid_list = NULL;
2127 ha->gid_list_dma = 0;
2128
2129 ha->response_ring = NULL;
2130 ha->response_dma = 0;
2131 ha->request_ring = NULL;
2132 ha->request_dma = 0;
2133
2134 list_for_each_safe(fcpl, fcptemp, &ha->fcports) {
2135 fcport = list_entry(fcpl, fc_port_t, list);
2136
2137 /* fc ports */
2138 list_del_init(&fcport->list);
2139 kfree(fcport);
2140 }
2141 INIT_LIST_HEAD(&ha->fcports);
2142
2143 ha->fw_dump = NULL;
2144 ha->fw_dumped = 0;
2145 ha->fw_dump_reading = 0;
2146
2147 vfree(ha->optrom_buffer);
2148 }
2149
2150 /*
2151 * qla2x00_allocate_sp_pool
2152 * This routine is called during initialization to allocate
2153 * memory for local srb_t.
2154 *
2155 * Input:
2156 * ha = adapter block pointer.
2157 *
2158 * Context:
2159 * Kernel context.
2160 */
2161 static int
2162 qla2x00_allocate_sp_pool(scsi_qla_host_t *ha)
2163 {
2164 int rval;
2165
2166 rval = QLA_SUCCESS;
2167 ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
2168 if (ha->srb_mempool == NULL) {
2169 qla_printk(KERN_INFO, ha, "Unable to allocate SRB mempool.\n");
2170 rval = QLA_FUNCTION_FAILED;
2171 }
2172 return (rval);
2173 }
2174
2175 /*
2176 * This routine frees all adapter allocated memory.
2177 *
2178 */
2179 static void
2180 qla2x00_free_sp_pool( scsi_qla_host_t *ha)
2181 {
2182 if (ha->srb_mempool) {
2183 mempool_destroy(ha->srb_mempool);
2184 ha->srb_mempool = NULL;
2185 }
2186 }
2187
2188 /**************************************************************************
2189 * qla2x00_do_dpc
2190 * This kernel thread is a task that is schedule by the interrupt handler
2191 * to perform the background processing for interrupts.
2192 *
2193 * Notes:
2194 * This task always run in the context of a kernel thread. It
2195 * is kick-off by the driver's detect code and starts up
2196 * up one per adapter. It immediately goes to sleep and waits for
2197 * some fibre event. When either the interrupt handler or
2198 * the timer routine detects a event it will one of the task
2199 * bits then wake us up.
2200 **************************************************************************/
2201 static int
2202 qla2x00_do_dpc(void *data)
2203 {
2204 scsi_qla_host_t *ha;
2205 fc_port_t *fcport;
2206 uint8_t status;
2207 uint16_t next_loopid;
2208
2209 ha = (scsi_qla_host_t *)data;
2210
2211 set_user_nice(current, -20);
2212
2213 while (!kthread_should_stop()) {
2214 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
2215
2216 set_current_state(TASK_INTERRUPTIBLE);
2217 schedule();
2218 __set_current_state(TASK_RUNNING);
2219
2220 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
2221
2222 /* Initialization not yet finished. Don't do anything yet. */
2223 if (!ha->flags.init_done)
2224 continue;
2225
2226 DEBUG3(printk("scsi(%ld): DPC handler\n", ha->host_no));
2227
2228 ha->dpc_active = 1;
2229
2230 if (ha->flags.mbox_busy) {
2231 ha->dpc_active = 0;
2232 continue;
2233 }
2234
2235 if (test_and_clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) {
2236
2237 DEBUG(printk("scsi(%ld): dpc: sched "
2238 "qla2x00_abort_isp ha = %p\n",
2239 ha->host_no, ha));
2240 if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
2241 &ha->dpc_flags))) {
2242
2243 if (qla2x00_abort_isp(ha)) {
2244 /* failed. retry later */
2245 set_bit(ISP_ABORT_NEEDED,
2246 &ha->dpc_flags);
2247 }
2248 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2249 }
2250 DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
2251 ha->host_no));
2252 }
2253
2254 if (test_and_clear_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags))
2255 qla2x00_update_fcports(ha);
2256
2257 if (test_and_clear_bit(LOOP_RESET_NEEDED, &ha->dpc_flags)) {
2258 DEBUG(printk("scsi(%ld): dpc: sched loop_reset()\n",
2259 ha->host_no));
2260 qla2x00_loop_reset(ha);
2261 }
2262
2263 if (test_and_clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) &&
2264 (!(test_and_set_bit(RESET_ACTIVE, &ha->dpc_flags)))) {
2265
2266 DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
2267 ha->host_no));
2268
2269 qla2x00_rst_aen(ha);
2270 clear_bit(RESET_ACTIVE, &ha->dpc_flags);
2271 }
2272
2273 /* Retry each device up to login retry count */
2274 if ((test_and_clear_bit(RELOGIN_NEEDED, &ha->dpc_flags)) &&
2275 !test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) &&
2276 atomic_read(&ha->loop_state) != LOOP_DOWN) {
2277
2278 DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
2279 ha->host_no));
2280
2281 next_loopid = 0;
2282 list_for_each_entry(fcport, &ha->fcports, list) {
2283 /*
2284 * If the port is not ONLINE then try to login
2285 * to it if we haven't run out of retries.
2286 */
2287 if (atomic_read(&fcport->state) != FCS_ONLINE &&
2288 fcport->login_retry) {
2289
2290 fcport->login_retry--;
2291 if (fcport->flags & FCF_FABRIC_DEVICE) {
2292 if (fcport->flags &
2293 FCF_TAPE_PRESENT)
2294 ha->isp_ops.fabric_logout(
2295 ha, fcport->loop_id,
2296 fcport->d_id.b.domain,
2297 fcport->d_id.b.area,
2298 fcport->d_id.b.al_pa);
2299 status = qla2x00_fabric_login(
2300 ha, fcport, &next_loopid);
2301 } else
2302 status =
2303 qla2x00_local_device_login(
2304 ha, fcport);
2305
2306 if (status == QLA_SUCCESS) {
2307 fcport->old_loop_id = fcport->loop_id;
2308
2309 DEBUG(printk("scsi(%ld): port login OK: logged in ID 0x%x\n",
2310 ha->host_no, fcport->loop_id));
2311
2312 qla2x00_update_fcport(ha,
2313 fcport);
2314 } else if (status == 1) {
2315 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
2316 /* retry the login again */
2317 DEBUG(printk("scsi(%ld): Retrying %d login again loop_id 0x%x\n",
2318 ha->host_no,
2319 fcport->login_retry, fcport->loop_id));
2320 } else {
2321 fcport->login_retry = 0;
2322 }
2323 }
2324 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2325 break;
2326 }
2327 DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
2328 ha->host_no));
2329 }
2330
2331 if ((test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags)) &&
2332 atomic_read(&ha->loop_state) != LOOP_DOWN) {
2333
2334 clear_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags);
2335 DEBUG(printk("scsi(%ld): qla2x00_login_retry()\n",
2336 ha->host_no));
2337
2338 set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
2339
2340 DEBUG(printk("scsi(%ld): qla2x00_login_retry - end\n",
2341 ha->host_no));
2342 }
2343
2344 if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
2345
2346 DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
2347 ha->host_no));
2348
2349 if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
2350 &ha->dpc_flags))) {
2351
2352 qla2x00_loop_resync(ha);
2353
2354 clear_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags);
2355 }
2356
2357 DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
2358 ha->host_no));
2359 }
2360
2361 if (test_and_clear_bit(FCPORT_RESCAN_NEEDED, &ha->dpc_flags)) {
2362
2363 DEBUG(printk("scsi(%ld): Rescan flagged fcports...\n",
2364 ha->host_no));
2365
2366 qla2x00_rescan_fcports(ha);
2367
2368 DEBUG(printk("scsi(%ld): Rescan flagged fcports..."
2369 "end.\n",
2370 ha->host_no));
2371 }
2372
2373 if (!ha->interrupts_on)
2374 ha->isp_ops.enable_intrs(ha);
2375
2376 if (test_and_clear_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags))
2377 ha->isp_ops.beacon_blink(ha);
2378
2379 ha->dpc_active = 0;
2380 } /* End of while(1) */
2381
2382 DEBUG(printk("scsi(%ld): DPC handler exiting\n", ha->host_no));
2383
2384 /*
2385 * Make sure that nobody tries to wake us up again.
2386 */
2387 ha->dpc_active = 0;
2388
2389 return 0;
2390 }
2391
2392 void
2393 qla2xxx_wake_dpc(scsi_qla_host_t *ha)
2394 {
2395 if (ha->dpc_thread)
2396 wake_up_process(ha->dpc_thread);
2397 }
2398
2399 /*
2400 * qla2x00_rst_aen
2401 * Processes asynchronous reset.
2402 *
2403 * Input:
2404 * ha = adapter block pointer.
2405 */
2406 static void
2407 qla2x00_rst_aen(scsi_qla_host_t *ha)
2408 {
2409 if (ha->flags.online && !ha->flags.reset_active &&
2410 !atomic_read(&ha->loop_down_timer) &&
2411 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) {
2412 do {
2413 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
2414
2415 /*
2416 * Issue marker command only when we are going to start
2417 * the I/O.
2418 */
2419 ha->marker_needed = 1;
2420 } while (!atomic_read(&ha->loop_down_timer) &&
2421 (test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags)));
2422 }
2423 }
2424
2425 static void
2426 qla2x00_sp_free_dma(scsi_qla_host_t *ha, srb_t *sp)
2427 {
2428 struct scsi_cmnd *cmd = sp->cmd;
2429
2430 if (sp->flags & SRB_DMA_VALID) {
2431 if (cmd->use_sg) {
2432 dma_unmap_sg(&ha->pdev->dev, cmd->request_buffer,
2433 cmd->use_sg, cmd->sc_data_direction);
2434 } else if (cmd->request_bufflen) {
2435 dma_unmap_single(&ha->pdev->dev, sp->dma_handle,
2436 cmd->request_bufflen, cmd->sc_data_direction);
2437 }
2438 sp->flags &= ~SRB_DMA_VALID;
2439 }
2440 CMD_SP(cmd) = NULL;
2441 }
2442
2443 void
2444 qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *sp)
2445 {
2446 struct scsi_cmnd *cmd = sp->cmd;
2447
2448 qla2x00_sp_free_dma(ha, sp);
2449
2450 mempool_free(sp, ha->srb_mempool);
2451
2452 cmd->scsi_done(cmd);
2453 }
2454
2455 /**************************************************************************
2456 * qla2x00_timer
2457 *
2458 * Description:
2459 * One second timer
2460 *
2461 * Context: Interrupt
2462 ***************************************************************************/
2463 static void
2464 qla2x00_timer(scsi_qla_host_t *ha)
2465 {
2466 unsigned long cpu_flags = 0;
2467 fc_port_t *fcport;
2468 int start_dpc = 0;
2469 int index;
2470 srb_t *sp;
2471 int t;
2472
2473 /*
2474 * Ports - Port down timer.
2475 *
2476 * Whenever, a port is in the LOST state we start decrementing its port
2477 * down timer every second until it reaches zero. Once it reaches zero
2478 * the port it marked DEAD.
2479 */
2480 t = 0;
2481 list_for_each_entry(fcport, &ha->fcports, list) {
2482 if (fcport->port_type != FCT_TARGET)
2483 continue;
2484
2485 if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
2486
2487 if (atomic_read(&fcport->port_down_timer) == 0)
2488 continue;
2489
2490 if (atomic_dec_and_test(&fcport->port_down_timer) != 0)
2491 atomic_set(&fcport->state, FCS_DEVICE_DEAD);
2492
2493 DEBUG(printk("scsi(%ld): fcport-%d - port retry count: "
2494 "%d remaining\n",
2495 ha->host_no,
2496 t, atomic_read(&fcport->port_down_timer)));
2497 }
2498 t++;
2499 } /* End of for fcport */
2500
2501
2502 /* Loop down handler. */
2503 if (atomic_read(&ha->loop_down_timer) > 0 &&
2504 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags)) && ha->flags.online) {
2505
2506 if (atomic_read(&ha->loop_down_timer) ==
2507 ha->loop_down_abort_time) {
2508
2509 DEBUG(printk("scsi(%ld): Loop Down - aborting the "
2510 "queues before time expire\n",
2511 ha->host_no));
2512
2513 if (!IS_QLA2100(ha) && ha->link_down_timeout)
2514 atomic_set(&ha->loop_state, LOOP_DEAD);
2515
2516 /* Schedule an ISP abort to return any tape commands. */
2517 spin_lock_irqsave(&ha->hardware_lock, cpu_flags);
2518 for (index = 1; index < MAX_OUTSTANDING_COMMANDS;
2519 index++) {
2520 fc_port_t *sfcp;
2521
2522 sp = ha->outstanding_cmds[index];
2523 if (!sp)
2524 continue;
2525 sfcp = sp->fcport;
2526 if (!(sfcp->flags & FCF_TAPE_PRESENT))
2527 continue;
2528
2529 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2530 break;
2531 }
2532 spin_unlock_irqrestore(&ha->hardware_lock, cpu_flags);
2533
2534 set_bit(ABORT_QUEUES_NEEDED, &ha->dpc_flags);
2535 start_dpc++;
2536 }
2537
2538 /* if the loop has been down for 4 minutes, reinit adapter */
2539 if (atomic_dec_and_test(&ha->loop_down_timer) != 0) {
2540 DEBUG(printk("scsi(%ld): Loop down exceed 4 mins - "
2541 "restarting queues.\n",
2542 ha->host_no));
2543
2544 set_bit(RESTART_QUEUES_NEEDED, &ha->dpc_flags);
2545 start_dpc++;
2546
2547 if (!(ha->device_flags & DFLG_NO_CABLE)) {
2548 DEBUG(printk("scsi(%ld): Loop down - "
2549 "aborting ISP.\n",
2550 ha->host_no));
2551 qla_printk(KERN_WARNING, ha,
2552 "Loop down - aborting ISP.\n");
2553
2554 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2555 }
2556 }
2557 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
2558 ha->host_no,
2559 atomic_read(&ha->loop_down_timer)));
2560 }
2561
2562 /* Check if beacon LED needs to be blinked */
2563 if (ha->beacon_blink_led == 1) {
2564 set_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags);
2565 start_dpc++;
2566 }
2567
2568 /* Schedule the DPC routine if needed */
2569 if ((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags) ||
2570 test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) ||
2571 test_bit(LOOP_RESET_NEEDED, &ha->dpc_flags) ||
2572 test_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags) ||
2573 start_dpc ||
2574 test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags) ||
2575 test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) ||
2576 test_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags) ||
2577 test_bit(RELOGIN_NEEDED, &ha->dpc_flags)))
2578 qla2xxx_wake_dpc(ha);
2579
2580 qla2x00_restart_timer(ha, WATCH_INTERVAL);
2581 }
2582
2583 /* XXX(hch): crude hack to emulate a down_timeout() */
2584 int
2585 qla2x00_down_timeout(struct semaphore *sema, unsigned long timeout)
2586 {
2587 const unsigned int step = 100; /* msecs */
2588 unsigned int iterations = jiffies_to_msecs(timeout)/100;
2589
2590 do {
2591 if (!down_trylock(sema))
2592 return 0;
2593 if (msleep_interruptible(step))
2594 break;
2595 } while (--iterations >= 0);
2596
2597 return -ETIMEDOUT;
2598 }
2599
2600 /* Firmware interface routines. */
2601
2602 #define FW_BLOBS 5
2603 #define FW_ISP21XX 0
2604 #define FW_ISP22XX 1
2605 #define FW_ISP2300 2
2606 #define FW_ISP2322 3
2607 #define FW_ISP24XX 4
2608
2609 #define FW_FILE_ISP21XX "ql2100_fw.bin"
2610 #define FW_FILE_ISP22XX "ql2200_fw.bin"
2611 #define FW_FILE_ISP2300 "ql2300_fw.bin"
2612 #define FW_FILE_ISP2322 "ql2322_fw.bin"
2613 #define FW_FILE_ISP24XX "ql2400_fw.bin"
2614
2615 static DECLARE_MUTEX(qla_fw_lock);
2616
2617 static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
2618 { .name = FW_FILE_ISP21XX, .segs = { 0x1000, 0 }, },
2619 { .name = FW_FILE_ISP22XX, .segs = { 0x1000, 0 }, },
2620 { .name = FW_FILE_ISP2300, .segs = { 0x800, 0 }, },
2621 { .name = FW_FILE_ISP2322, .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
2622 { .name = FW_FILE_ISP24XX, },
2623 };
2624
2625 struct fw_blob *
2626 qla2x00_request_firmware(scsi_qla_host_t *ha)
2627 {
2628 struct fw_blob *blob;
2629
2630 blob = NULL;
2631 if (IS_QLA2100(ha)) {
2632 blob = &qla_fw_blobs[FW_ISP21XX];
2633 } else if (IS_QLA2200(ha)) {
2634 blob = &qla_fw_blobs[FW_ISP22XX];
2635 } else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
2636 blob = &qla_fw_blobs[FW_ISP2300];
2637 } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
2638 blob = &qla_fw_blobs[FW_ISP2322];
2639 } else if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
2640 blob = &qla_fw_blobs[FW_ISP24XX];
2641 }
2642
2643 down(&qla_fw_lock);
2644 if (blob->fw)
2645 goto out;
2646
2647 if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
2648 DEBUG2(printk("scsi(%ld): Failed to load firmware image "
2649 "(%s).\n", ha->host_no, blob->name));
2650 blob->fw = NULL;
2651 blob = NULL;
2652 goto out;
2653 }
2654
2655 out:
2656 up(&qla_fw_lock);
2657 return blob;
2658 }
2659
2660 static void
2661 qla2x00_release_firmware(void)
2662 {
2663 int idx;
2664
2665 down(&qla_fw_lock);
2666 for (idx = 0; idx < FW_BLOBS; idx++)
2667 if (qla_fw_blobs[idx].fw)
2668 release_firmware(qla_fw_blobs[idx].fw);
2669 up(&qla_fw_lock);
2670 }
2671
2672 static struct pci_device_id qla2xxx_pci_tbl[] = {
2673 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
2674 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
2675 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
2676 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
2677 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
2678 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
2679 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
2680 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
2681 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
2682 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
2683 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
2684 { 0 },
2685 };
2686 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
2687
2688 static struct pci_driver qla2xxx_pci_driver = {
2689 .name = QLA2XXX_DRIVER_NAME,
2690 .driver = {
2691 .owner = THIS_MODULE,
2692 },
2693 .id_table = qla2xxx_pci_tbl,
2694 .probe = qla2x00_probe_one,
2695 .remove = __devexit_p(qla2x00_remove_one),
2696 };
2697
2698 /**
2699 * qla2x00_module_init - Module initialization.
2700 **/
2701 static int __init
2702 qla2x00_module_init(void)
2703 {
2704 int ret = 0;
2705
2706 /* Allocate cache for SRBs. */
2707 srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
2708 SLAB_HWCACHE_ALIGN, NULL, NULL);
2709 if (srb_cachep == NULL) {
2710 printk(KERN_ERR
2711 "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
2712 return -ENOMEM;
2713 }
2714
2715 /* Derive version string. */
2716 strcpy(qla2x00_version_str, QLA2XXX_VERSION);
2717 if (ql2xextended_error_logging)
2718 strcat(qla2x00_version_str, "-debug");
2719
2720 qla2xxx_transport_template =
2721 fc_attach_transport(&qla2xxx_transport_functions);
2722 if (!qla2xxx_transport_template)
2723 return -ENODEV;
2724
2725 printk(KERN_INFO "QLogic Fibre Channel HBA Driver\n");
2726 ret = pci_register_driver(&qla2xxx_pci_driver);
2727 if (ret) {
2728 kmem_cache_destroy(srb_cachep);
2729 fc_release_transport(qla2xxx_transport_template);
2730 }
2731 return ret;
2732 }
2733
2734 /**
2735 * qla2x00_module_exit - Module cleanup.
2736 **/
2737 static void __exit
2738 qla2x00_module_exit(void)
2739 {
2740 pci_unregister_driver(&qla2xxx_pci_driver);
2741 qla2x00_release_firmware();
2742 kmem_cache_destroy(srb_cachep);
2743 fc_release_transport(qla2xxx_transport_template);
2744 }
2745
2746 module_init(qla2x00_module_init);
2747 module_exit(qla2x00_module_exit);
2748
2749 MODULE_AUTHOR("QLogic Corporation");
2750 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
2751 MODULE_LICENSE("GPL");
2752 MODULE_VERSION(QLA2XXX_VERSION);
2753 MODULE_FIRMWARE(FW_FILE_ISP21XX);
2754 MODULE_FIRMWARE(FW_FILE_ISP22XX);
2755 MODULE_FIRMWARE(FW_FILE_ISP2300);
2756 MODULE_FIRMWARE(FW_FILE_ISP2322);
2757 MODULE_FIRMWARE(FW_FILE_ISP24XX);
linux kernel for loongson