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[SCSI] qla2xxx: Remove obsolete firmware-loader-module support.
[linux-2.6/zen-sources.git] / drivers / scsi / qla2xxx / qla_os.c
blobea8239dcbbbfaf6b1fcc1693228bccc623b6a5a8
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 static void qla2x00_free_device(scsi_qla_host_t *);
58
59 static void qla2x00_config_dma_addressing(scsi_qla_host_t *ha);
60
61 int ql2xfdmienable;
62 module_param(ql2xfdmienable, int, S_IRUGO|S_IRUSR);
63 MODULE_PARM_DESC(ql2xfdmienable,
64 "Enables FDMI registratons "
65 "Default is 0 - no FDMI. 1 - perfom FDMI.");
66
67 /*
68 * SCSI host template entry points
69 */
70 static int qla2xxx_slave_configure(struct scsi_device * device);
71 static int qla2xxx_slave_alloc(struct scsi_device *);
72 static void qla2xxx_slave_destroy(struct scsi_device *);
73 static int qla2x00_queuecommand(struct scsi_cmnd *cmd,
74 void (*fn)(struct scsi_cmnd *));
75 static int qla24xx_queuecommand(struct scsi_cmnd *cmd,
76 void (*fn)(struct scsi_cmnd *));
77 static int qla2xxx_eh_abort(struct scsi_cmnd *);
78 static int qla2xxx_eh_device_reset(struct scsi_cmnd *);
79 static int qla2xxx_eh_bus_reset(struct scsi_cmnd *);
80 static int qla2xxx_eh_host_reset(struct scsi_cmnd *);
81 static int qla2x00_loop_reset(scsi_qla_host_t *ha);
82 static int qla2x00_device_reset(scsi_qla_host_t *, fc_port_t *);
83
84 static int qla2x00_change_queue_depth(struct scsi_device *, int);
85 static int qla2x00_change_queue_type(struct scsi_device *, int);
86
87 static struct scsi_host_template qla2x00_driver_template = {
88 .module = THIS_MODULE,
89 .name = "qla2xxx",
90 .queuecommand = qla2x00_queuecommand,
91
92 .eh_abort_handler = qla2xxx_eh_abort,
93 .eh_device_reset_handler = qla2xxx_eh_device_reset,
94 .eh_bus_reset_handler = qla2xxx_eh_bus_reset,
95 .eh_host_reset_handler = qla2xxx_eh_host_reset,
96
97 .slave_configure = qla2xxx_slave_configure,
98
99 .slave_alloc = qla2xxx_slave_alloc,
100 .slave_destroy = qla2xxx_slave_destroy,
101 .change_queue_depth = qla2x00_change_queue_depth,
102 .change_queue_type = qla2x00_change_queue_type,
103 .this_id = -1,
104 .cmd_per_lun = 3,
105 .use_clustering = ENABLE_CLUSTERING,
106 .sg_tablesize = SG_ALL,
107
108 /*
109 * The RISC allows for each command to transfer (2^32-1) bytes of data,
110 * which equates to 0x800000 sectors.
111 */
112 .max_sectors = 0xFFFF,
113 .shost_attrs = qla2x00_host_attrs,
114 };
115
116 static struct scsi_host_template qla24xx_driver_template = {
117 .module = THIS_MODULE,
118 .name = "qla2xxx",
119 .queuecommand = qla24xx_queuecommand,
120
121 .eh_abort_handler = qla2xxx_eh_abort,
122 .eh_device_reset_handler = qla2xxx_eh_device_reset,
123 .eh_bus_reset_handler = qla2xxx_eh_bus_reset,
124 .eh_host_reset_handler = qla2xxx_eh_host_reset,
125
126 .slave_configure = qla2xxx_slave_configure,
127
128 .slave_alloc = qla2xxx_slave_alloc,
129 .slave_destroy = qla2xxx_slave_destroy,
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 .max_sectors = 0xFFFF,
138 .shost_attrs = qla2x00_host_attrs,
139 };
140
141 static struct scsi_transport_template *qla2xxx_transport_template = NULL;
142
143 /* TODO Convert to inlines
144 *
145 * Timer routines
146 */
147 #define WATCH_INTERVAL 1 /* number of seconds */
148
149 static void qla2x00_timer(scsi_qla_host_t *);
150
151 static __inline__ void qla2x00_start_timer(scsi_qla_host_t *,
152 void *, unsigned long);
153 static __inline__ void qla2x00_restart_timer(scsi_qla_host_t *, unsigned long);
154 static __inline__ void qla2x00_stop_timer(scsi_qla_host_t *);
155
156 static inline void
157 qla2x00_start_timer(scsi_qla_host_t *ha, void *func, unsigned long interval)
158 {
159 init_timer(&ha->timer);
160 ha->timer.expires = jiffies + interval * HZ;
161 ha->timer.data = (unsigned long)ha;
162 ha->timer.function = (void (*)(unsigned long))func;
163 add_timer(&ha->timer);
164 ha->timer_active = 1;
165 }
166
167 static inline void
168 qla2x00_restart_timer(scsi_qla_host_t *ha, unsigned long interval)
169 {
170 mod_timer(&ha->timer, jiffies + interval * HZ);
171 }
172
173 static __inline__ void
174 qla2x00_stop_timer(scsi_qla_host_t *ha)
175 {
176 del_timer_sync(&ha->timer);
177 ha->timer_active = 0;
178 }
179
180 static int qla2x00_do_dpc(void *data);
181
182 static void qla2x00_rst_aen(scsi_qla_host_t *);
183
184 static uint8_t qla2x00_mem_alloc(scsi_qla_host_t *);
185 static void qla2x00_mem_free(scsi_qla_host_t *ha);
186 static int qla2x00_allocate_sp_pool( scsi_qla_host_t *ha);
187 static void qla2x00_free_sp_pool(scsi_qla_host_t *ha);
188 static void qla2x00_sp_free_dma(scsi_qla_host_t *, srb_t *);
189 void qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *);
190
191 /* -------------------------------------------------------------------------- */
192
193 static char *
194 qla2x00_pci_info_str(struct scsi_qla_host *ha, char *str)
195 {
196 static char *pci_bus_modes[] = {
197 "33", "66", "100", "133",
198 };
199 uint16_t pci_bus;
200
201 strcpy(str, "PCI");
202 pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
203 if (pci_bus) {
204 strcat(str, "-X (");
205 strcat(str, pci_bus_modes[pci_bus]);
206 } else {
207 pci_bus = (ha->pci_attr & BIT_8) >> 8;
208 strcat(str, " (");
209 strcat(str, pci_bus_modes[pci_bus]);
210 }
211 strcat(str, " MHz)");
212
213 return (str);
214 }
215
216 static char *
217 qla24xx_pci_info_str(struct scsi_qla_host *ha, char *str)
218 {
219 static char *pci_bus_modes[] = { "33", "66", "100", "133", };
220 uint32_t pci_bus;
221 int pcie_reg;
222
223 pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
224 if (pcie_reg) {
225 char lwstr[6];
226 uint16_t pcie_lstat, lspeed, lwidth;
227
228 pcie_reg += 0x12;
229 pci_read_config_word(ha->pdev, pcie_reg, &pcie_lstat);
230 lspeed = pcie_lstat & (BIT_0 | BIT_1 | BIT_2 | BIT_3);
231 lwidth = (pcie_lstat &
232 (BIT_4 | BIT_5 | BIT_6 | BIT_7 | BIT_8 | BIT_9)) >> 4;
233
234 strcpy(str, "PCIe (");
235 if (lspeed == 1)
236 strcat(str, "2.5Gb/s ");
237 else
238 strcat(str, "<unknown> ");
239 snprintf(lwstr, sizeof(lwstr), "x%d)", lwidth);
240 strcat(str, lwstr);
241
242 return str;
243 }
244
245 strcpy(str, "PCI");
246 pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
247 if (pci_bus == 0 || pci_bus == 8) {
248 strcat(str, " (");
249 strcat(str, pci_bus_modes[pci_bus >> 3]);
250 } else {
251 strcat(str, "-X ");
252 if (pci_bus & BIT_2)
253 strcat(str, "Mode 2");
254 else
255 strcat(str, "Mode 1");
256 strcat(str, " (");
257 strcat(str, pci_bus_modes[pci_bus & ~BIT_2]);
258 }
259 strcat(str, " MHz)");
260
261 return str;
262 }
263
264 char *
265 qla2x00_fw_version_str(struct scsi_qla_host *ha, char *str)
266 {
267 char un_str[10];
268
269 sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
270 ha->fw_minor_version,
271 ha->fw_subminor_version);
272
273 if (ha->fw_attributes & BIT_9) {
274 strcat(str, "FLX");
275 return (str);
276 }
277
278 switch (ha->fw_attributes & 0xFF) {
279 case 0x7:
280 strcat(str, "EF");
281 break;
282 case 0x17:
283 strcat(str, "TP");
284 break;
285 case 0x37:
286 strcat(str, "IP");
287 break;
288 case 0x77:
289 strcat(str, "VI");
290 break;
291 default:
292 sprintf(un_str, "(%x)", ha->fw_attributes);
293 strcat(str, un_str);
294 break;
295 }
296 if (ha->fw_attributes & 0x100)
297 strcat(str, "X");
298
299 return (str);
300 }
301
302 char *
303 qla24xx_fw_version_str(struct scsi_qla_host *ha, char *str)
304 {
305 sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
306 ha->fw_minor_version,
307 ha->fw_subminor_version);
308
309 if (ha->fw_attributes & BIT_0)
310 strcat(str, "[Class 2] ");
311 if (ha->fw_attributes & BIT_1)
312 strcat(str, "[IP] ");
313 if (ha->fw_attributes & BIT_2)
314 strcat(str, "[Multi-ID] ");
315 if (ha->fw_attributes & BIT_13)
316 strcat(str, "[Experimental]");
317 return str;
318 }
319
320 static inline srb_t *
321 qla2x00_get_new_sp(scsi_qla_host_t *ha, fc_port_t *fcport,
322 struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
323 {
324 srb_t *sp;
325
326 sp = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
327 if (!sp)
328 return sp;
329
330 sp->ha = ha;
331 sp->fcport = fcport;
332 sp->cmd = cmd;
333 sp->flags = 0;
334 CMD_SP(cmd) = (void *)sp;
335 cmd->scsi_done = done;
336
337 return sp;
338 }
339
340 static int
341 qla2x00_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
342 {
343 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
344 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
345 struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
346 srb_t *sp;
347 int rval;
348
349 rval = fc_remote_port_chkready(rport);
350 if (rval) {
351 cmd->result = rval;
352 goto qc_fail_command;
353 }
354
355 /* Close window on fcport/rport state-transitioning. */
356 if (!*(fc_port_t **)rport->dd_data) {
357 cmd->result = DID_IMM_RETRY << 16;
358 goto qc_fail_command;
359 }
360
361 if (atomic_read(&fcport->state) != FCS_ONLINE) {
362 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
363 atomic_read(&ha->loop_state) == LOOP_DEAD) {
364 cmd->result = DID_NO_CONNECT << 16;
365 goto qc_fail_command;
366 }
367 goto qc_host_busy;
368 }
369
370 spin_unlock_irq(ha->host->host_lock);
371
372 sp = qla2x00_get_new_sp(ha, fcport, cmd, done);
373 if (!sp)
374 goto qc_host_busy_lock;
375
376 rval = qla2x00_start_scsi(sp);
377 if (rval != QLA_SUCCESS)
378 goto qc_host_busy_free_sp;
379
380 spin_lock_irq(ha->host->host_lock);
381
382 return 0;
383
384 qc_host_busy_free_sp:
385 qla2x00_sp_free_dma(ha, sp);
386 mempool_free(sp, ha->srb_mempool);
387
388 qc_host_busy_lock:
389 spin_lock_irq(ha->host->host_lock);
390
391 qc_host_busy:
392 return SCSI_MLQUEUE_HOST_BUSY;
393
394 qc_fail_command:
395 done(cmd);
396
397 return 0;
398 }
399
400
401 static int
402 qla24xx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
403 {
404 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
405 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
406 struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
407 srb_t *sp;
408 int rval;
409
410 rval = fc_remote_port_chkready(rport);
411 if (rval) {
412 cmd->result = rval;
413 goto qc24_fail_command;
414 }
415
416 /* Close window on fcport/rport state-transitioning. */
417 if (!*(fc_port_t **)rport->dd_data) {
418 cmd->result = DID_IMM_RETRY << 16;
419 goto qc24_fail_command;
420 }
421
422 if (atomic_read(&fcport->state) != FCS_ONLINE) {
423 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
424 atomic_read(&ha->loop_state) == LOOP_DEAD) {
425 cmd->result = DID_NO_CONNECT << 16;
426 goto qc24_fail_command;
427 }
428 goto qc24_host_busy;
429 }
430
431 spin_unlock_irq(ha->host->host_lock);
432
433 sp = qla2x00_get_new_sp(ha, fcport, cmd, done);
434 if (!sp)
435 goto qc24_host_busy_lock;
436
437 rval = qla24xx_start_scsi(sp);
438 if (rval != QLA_SUCCESS)
439 goto qc24_host_busy_free_sp;
440
441 spin_lock_irq(ha->host->host_lock);
442
443 return 0;
444
445 qc24_host_busy_free_sp:
446 qla2x00_sp_free_dma(ha, sp);
447 mempool_free(sp, ha->srb_mempool);
448
449 qc24_host_busy_lock:
450 spin_lock_irq(ha->host->host_lock);
451
452 qc24_host_busy:
453 return SCSI_MLQUEUE_HOST_BUSY;
454
455 qc24_fail_command:
456 done(cmd);
457
458 return 0;
459 }
460
461
462 /*
463 * qla2x00_eh_wait_on_command
464 * Waits for the command to be returned by the Firmware for some
465 * max time.
466 *
467 * Input:
468 * ha = actual ha whose done queue will contain the command
469 * returned by firmware.
470 * cmd = Scsi Command to wait on.
471 * flag = Abort/Reset(Bus or Device Reset)
472 *
473 * Return:
474 * Not Found : 0
475 * Found : 1
476 */
477 static int
478 qla2x00_eh_wait_on_command(scsi_qla_host_t *ha, struct scsi_cmnd *cmd)
479 {
480 #define ABORT_POLLING_PERIOD 1000
481 #define ABORT_WAIT_ITER ((10 * 1000) / (ABORT_POLLING_PERIOD))
482 unsigned long wait_iter = ABORT_WAIT_ITER;
483 int ret = QLA_SUCCESS;
484
485 while (CMD_SP(cmd)) {
486 msleep(ABORT_POLLING_PERIOD);
487
488 if (--wait_iter)
489 break;
490 }
491 if (CMD_SP(cmd))
492 ret = QLA_FUNCTION_FAILED;
493
494 return ret;
495 }
496
497 /*
498 * qla2x00_wait_for_hba_online
499 * Wait till the HBA is online after going through
500 * <= MAX_RETRIES_OF_ISP_ABORT or
501 * finally HBA is disabled ie marked offline
502 *
503 * Input:
504 * ha - pointer to host adapter structure
505 *
506 * Note:
507 * Does context switching-Release SPIN_LOCK
508 * (if any) before calling this routine.
509 *
510 * Return:
511 * Success (Adapter is online) : 0
512 * Failed (Adapter is offline/disabled) : 1
513 */
514 int
515 qla2x00_wait_for_hba_online(scsi_qla_host_t *ha)
516 {
517 int return_status;
518 unsigned long wait_online;
519
520 wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
521 while (((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) ||
522 test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags) ||
523 test_bit(ISP_ABORT_RETRY, &ha->dpc_flags) ||
524 ha->dpc_active) && time_before(jiffies, wait_online)) {
525
526 msleep(1000);
527 }
528 if (ha->flags.online)
529 return_status = QLA_SUCCESS;
530 else
531 return_status = QLA_FUNCTION_FAILED;
532
533 DEBUG2(printk("%s return_status=%d\n",__func__,return_status));
534
535 return (return_status);
536 }
537
538 /*
539 * qla2x00_wait_for_loop_ready
540 * Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
541 * to be in LOOP_READY state.
542 * Input:
543 * ha - pointer to host adapter structure
544 *
545 * Note:
546 * Does context switching-Release SPIN_LOCK
547 * (if any) before calling this routine.
548 *
549 *
550 * Return:
551 * Success (LOOP_READY) : 0
552 * Failed (LOOP_NOT_READY) : 1
553 */
554 static inline int
555 qla2x00_wait_for_loop_ready(scsi_qla_host_t *ha)
556 {
557 int return_status = QLA_SUCCESS;
558 unsigned long loop_timeout ;
559
560 /* wait for 5 min at the max for loop to be ready */
561 loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ);
562
563 while ((!atomic_read(&ha->loop_down_timer) &&
564 atomic_read(&ha->loop_state) == LOOP_DOWN) ||
565 atomic_read(&ha->loop_state) != LOOP_READY) {
566 if (atomic_read(&ha->loop_state) == LOOP_DEAD) {
567 return_status = QLA_FUNCTION_FAILED;
568 break;
569 }
570 msleep(1000);
571 if (time_after_eq(jiffies, loop_timeout)) {
572 return_status = QLA_FUNCTION_FAILED;
573 break;
574 }
575 }
576 return (return_status);
577 }
578
579 /**************************************************************************
580 * qla2xxx_eh_abort
581 *
582 * Description:
583 * The abort function will abort the specified command.
584 *
585 * Input:
586 * cmd = Linux SCSI command packet to be aborted.
587 *
588 * Returns:
589 * Either SUCCESS or FAILED.
590 *
591 * Note:
592 **************************************************************************/
593 int
594 qla2xxx_eh_abort(struct scsi_cmnd *cmd)
595 {
596 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
597 srb_t *sp;
598 int ret, i;
599 unsigned int id, lun;
600 unsigned long serial;
601 unsigned long flags;
602
603 if (!CMD_SP(cmd))
604 return FAILED;
605
606 ret = FAILED;
607
608 id = cmd->device->id;
609 lun = cmd->device->lun;
610 serial = cmd->serial_number;
611
612 /* Check active list for command command. */
613 spin_lock_irqsave(&ha->hardware_lock, flags);
614 for (i = 1; i < MAX_OUTSTANDING_COMMANDS; i++) {
615 sp = ha->outstanding_cmds[i];
616
617 if (sp == NULL)
618 continue;
619
620 if (sp->cmd != cmd)
621 continue;
622
623 DEBUG2(printk("%s(%ld): aborting sp %p from RISC. pid=%ld.\n",
624 __func__, ha->host_no, sp, serial));
625 DEBUG3(qla2x00_print_scsi_cmd(cmd);)
626
627 spin_unlock_irqrestore(&ha->hardware_lock, flags);
628 if (ha->isp_ops.abort_command(ha, sp)) {
629 DEBUG2(printk("%s(%ld): abort_command "
630 "mbx failed.\n", __func__, ha->host_no));
631 } else {
632 DEBUG3(printk("%s(%ld): abort_command "
633 "mbx success.\n", __func__, ha->host_no));
634 ret = SUCCESS;
635 }
636 spin_lock_irqsave(&ha->hardware_lock, flags);
637
638 break;
639 }
640 spin_unlock_irqrestore(&ha->hardware_lock, flags);
641
642 /* Wait for the command to be returned. */
643 if (ret == SUCCESS) {
644 if (qla2x00_eh_wait_on_command(ha, cmd) != QLA_SUCCESS) {
645 qla_printk(KERN_ERR, ha,
646 "scsi(%ld:%d:%d): Abort handler timed out -- %lx "
647 "%x.\n", ha->host_no, id, lun, serial, ret);
648 }
649 }
650
651 qla_printk(KERN_INFO, ha,
652 "scsi(%ld:%d:%d): Abort command issued -- %lx %x.\n", ha->host_no,
653 id, lun, serial, ret);
654
655 return ret;
656 }
657
658 /**************************************************************************
659 * qla2x00_eh_wait_for_pending_target_commands
660 *
661 * Description:
662 * Waits for all the commands to come back from the specified target.
663 *
664 * Input:
665 * ha - pointer to scsi_qla_host structure.
666 * t - target
667 * Returns:
668 * Either SUCCESS or FAILED.
669 *
670 * Note:
671 **************************************************************************/
672 static int
673 qla2x00_eh_wait_for_pending_target_commands(scsi_qla_host_t *ha, unsigned int t)
674 {
675 int cnt;
676 int status;
677 srb_t *sp;
678 struct scsi_cmnd *cmd;
679 unsigned long flags;
680
681 status = 0;
682
683 /*
684 * Waiting for all commands for the designated target in the active
685 * array
686 */
687 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
688 spin_lock_irqsave(&ha->hardware_lock, flags);
689 sp = ha->outstanding_cmds[cnt];
690 if (sp) {
691 cmd = sp->cmd;
692 spin_unlock_irqrestore(&ha->hardware_lock, flags);
693 if (cmd->device->id == t) {
694 if (!qla2x00_eh_wait_on_command(ha, cmd)) {
695 status = 1;
696 break;
697 }
698 }
699 } else {
700 spin_unlock_irqrestore(&ha->hardware_lock, flags);
701 }
702 }
703 return (status);
704 }
705
706
707 /**************************************************************************
708 * qla2xxx_eh_device_reset
709 *
710 * Description:
711 * The device reset function will reset the target and abort any
712 * executing commands.
713 *
714 * NOTE: The use of SP is undefined within this context. Do *NOT*
715 * attempt to use this value, even if you determine it is
716 * non-null.
717 *
718 * Input:
719 * cmd = Linux SCSI command packet of the command that cause the
720 * bus device reset.
721 *
722 * Returns:
723 * SUCCESS/FAILURE (defined as macro in scsi.h).
724 *
725 **************************************************************************/
726 int
727 qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
728 {
729 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
730 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
731 srb_t *sp;
732 int ret;
733 unsigned int id, lun;
734 unsigned long serial;
735
736 ret = FAILED;
737
738 id = cmd->device->id;
739 lun = cmd->device->lun;
740 serial = cmd->serial_number;
741
742 sp = (srb_t *) CMD_SP(cmd);
743 if (!sp || !fcport)
744 return ret;
745
746 qla_printk(KERN_INFO, ha,
747 "scsi(%ld:%d:%d): DEVICE RESET ISSUED.\n", ha->host_no, id, lun);
748
749 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
750 goto eh_dev_reset_done;
751
752 if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
753 if (qla2x00_device_reset(ha, fcport) == 0)
754 ret = SUCCESS;
755
756 #if defined(LOGOUT_AFTER_DEVICE_RESET)
757 if (ret == SUCCESS) {
758 if (fcport->flags & FC_FABRIC_DEVICE) {
759 ha->isp_ops.fabric_logout(ha, fcport->loop_id);
760 qla2x00_mark_device_lost(ha, fcport, 0, 0);
761 }
762 }
763 #endif
764 } else {
765 DEBUG2(printk(KERN_INFO
766 "%s failed: loop not ready\n",__func__);)
767 }
768
769 if (ret == FAILED) {
770 DEBUG3(printk("%s(%ld): device reset failed\n",
771 __func__, ha->host_no));
772 qla_printk(KERN_INFO, ha, "%s: device reset failed\n",
773 __func__);
774
775 goto eh_dev_reset_done;
776 }
777
778 /* Flush outstanding commands. */
779 if (qla2x00_eh_wait_for_pending_target_commands(ha, id))
780 ret = FAILED;
781 if (ret == FAILED) {
782 DEBUG3(printk("%s(%ld): failed while waiting for commands\n",
783 __func__, ha->host_no));
784 qla_printk(KERN_INFO, ha,
785 "%s: failed while waiting for commands\n", __func__);
786 } else
787 qla_printk(KERN_INFO, ha,
788 "scsi(%ld:%d:%d): DEVICE RESET SUCCEEDED.\n", ha->host_no,
789 id, lun);
790 eh_dev_reset_done:
791 return ret;
792 }
793
794 /**************************************************************************
795 * qla2x00_eh_wait_for_pending_commands
796 *
797 * Description:
798 * Waits for all the commands to come back from the specified host.
799 *
800 * Input:
801 * ha - pointer to scsi_qla_host structure.
802 *
803 * Returns:
804 * 1 : SUCCESS
805 * 0 : FAILED
806 *
807 * Note:
808 **************************************************************************/
809 static int
810 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *ha)
811 {
812 int cnt;
813 int status;
814 srb_t *sp;
815 struct scsi_cmnd *cmd;
816 unsigned long flags;
817
818 status = 1;
819
820 /*
821 * Waiting for all commands for the designated target in the active
822 * array
823 */
824 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
825 spin_lock_irqsave(&ha->hardware_lock, flags);
826 sp = ha->outstanding_cmds[cnt];
827 if (sp) {
828 cmd = sp->cmd;
829 spin_unlock_irqrestore(&ha->hardware_lock, flags);
830 status = qla2x00_eh_wait_on_command(ha, cmd);
831 if (status == 0)
832 break;
833 }
834 else {
835 spin_unlock_irqrestore(&ha->hardware_lock, flags);
836 }
837 }
838 return (status);
839 }
840
841
842 /**************************************************************************
843 * qla2xxx_eh_bus_reset
844 *
845 * Description:
846 * The bus reset function will reset the bus and abort any executing
847 * commands.
848 *
849 * Input:
850 * cmd = Linux SCSI command packet of the command that cause the
851 * bus reset.
852 *
853 * Returns:
854 * SUCCESS/FAILURE (defined as macro in scsi.h).
855 *
856 **************************************************************************/
857 int
858 qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
859 {
860 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
861 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
862 srb_t *sp;
863 int ret;
864 unsigned int id, lun;
865 unsigned long serial;
866
867 ret = FAILED;
868
869 id = cmd->device->id;
870 lun = cmd->device->lun;
871 serial = cmd->serial_number;
872
873 sp = (srb_t *) CMD_SP(cmd);
874 if (!sp || !fcport)
875 return ret;
876
877 qla_printk(KERN_INFO, ha,
878 "scsi(%ld:%d:%d): LOOP RESET ISSUED.\n", ha->host_no, id, lun);
879
880 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS) {
881 DEBUG2(printk("%s failed:board disabled\n",__func__));
882 goto eh_bus_reset_done;
883 }
884
885 if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
886 if (qla2x00_loop_reset(ha) == QLA_SUCCESS)
887 ret = SUCCESS;
888 }
889 if (ret == FAILED)
890 goto eh_bus_reset_done;
891
892 /* Flush outstanding commands. */
893 if (!qla2x00_eh_wait_for_pending_commands(ha))
894 ret = FAILED;
895
896 eh_bus_reset_done:
897 qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
898 (ret == FAILED) ? "failed" : "succeded");
899
900 return ret;
901 }
902
903 /**************************************************************************
904 * qla2xxx_eh_host_reset
905 *
906 * Description:
907 * The reset function will reset the Adapter.
908 *
909 * Input:
910 * cmd = Linux SCSI command packet of the command that cause the
911 * adapter reset.
912 *
913 * Returns:
914 * Either SUCCESS or FAILED.
915 *
916 * Note:
917 **************************************************************************/
918 int
919 qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
920 {
921 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
922 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
923 srb_t *sp;
924 int ret;
925 unsigned int id, lun;
926 unsigned long serial;
927
928 ret = FAILED;
929
930 id = cmd->device->id;
931 lun = cmd->device->lun;
932 serial = cmd->serial_number;
933
934 sp = (srb_t *) CMD_SP(cmd);
935 if (!sp || !fcport)
936 return ret;
937
938 qla_printk(KERN_INFO, ha,
939 "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", ha->host_no, id, lun);
940
941 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
942 goto eh_host_reset_lock;
943
944 /*
945 * Fixme-may be dpc thread is active and processing
946 * loop_resync,so wait a while for it to
947 * be completed and then issue big hammer.Otherwise
948 * it may cause I/O failure as big hammer marks the
949 * devices as lost kicking of the port_down_timer
950 * while dpc is stuck for the mailbox to complete.
951 */
952 qla2x00_wait_for_loop_ready(ha);
953 set_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
954 if (qla2x00_abort_isp(ha)) {
955 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
956 /* failed. schedule dpc to try */
957 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
958
959 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
960 goto eh_host_reset_lock;
961 }
962 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
963
964 /* Waiting for our command in done_queue to be returned to OS.*/
965 if (qla2x00_eh_wait_for_pending_commands(ha))
966 ret = SUCCESS;
967
968 eh_host_reset_lock:
969 qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
970 (ret == FAILED) ? "failed" : "succeded");
971
972 return ret;
973 }
974
975 /*
976 * qla2x00_loop_reset
977 * Issue loop reset.
978 *
979 * Input:
980 * ha = adapter block pointer.
981 *
982 * Returns:
983 * 0 = success
984 */
985 static int
986 qla2x00_loop_reset(scsi_qla_host_t *ha)
987 {
988 int status = QLA_SUCCESS;
989 struct fc_port *fcport;
990
991 if (ha->flags.enable_lip_reset) {
992 status = qla2x00_lip_reset(ha);
993 }
994
995 if (status == QLA_SUCCESS && ha->flags.enable_target_reset) {
996 list_for_each_entry(fcport, &ha->fcports, list) {
997 if (fcport->port_type != FCT_TARGET)
998 continue;
999
1000 status = qla2x00_device_reset(ha, fcport);
1001 if (status != QLA_SUCCESS)
1002 break;
1003 }
1004 }
1005
1006 if (status == QLA_SUCCESS &&
1007 ((!ha->flags.enable_target_reset &&
1008 !ha->flags.enable_lip_reset) ||
1009 ha->flags.enable_lip_full_login)) {
1010
1011 status = qla2x00_full_login_lip(ha);
1012 }
1013
1014 /* Issue marker command only when we are going to start the I/O */
1015 ha->marker_needed = 1;
1016
1017 if (status) {
1018 /* Empty */
1019 DEBUG2_3(printk("%s(%ld): **** FAILED ****\n",
1020 __func__,
1021 ha->host_no);)
1022 } else {
1023 /* Empty */
1024 DEBUG3(printk("%s(%ld): exiting normally.\n",
1025 __func__,
1026 ha->host_no);)
1027 }
1028
1029 return(status);
1030 }
1031
1032 /*
1033 * qla2x00_device_reset
1034 * Issue bus device reset message to the target.
1035 *
1036 * Input:
1037 * ha = adapter block pointer.
1038 * t = SCSI ID.
1039 * TARGET_QUEUE_LOCK must be released.
1040 * ADAPTER_STATE_LOCK must be released.
1041 *
1042 * Context:
1043 * Kernel context.
1044 */
1045 static int
1046 qla2x00_device_reset(scsi_qla_host_t *ha, fc_port_t *reset_fcport)
1047 {
1048 /* Abort Target command will clear Reservation */
1049 return ha->isp_ops.abort_target(reset_fcport);
1050 }
1051
1052 static int
1053 qla2xxx_slave_alloc(struct scsi_device *sdev)
1054 {
1055 struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1056
1057 if (!rport || fc_remote_port_chkready(rport))
1058 return -ENXIO;
1059
1060 sdev->hostdata = *(fc_port_t **)rport->dd_data;
1061
1062 return 0;
1063 }
1064
1065 static int
1066 qla2xxx_slave_configure(struct scsi_device *sdev)
1067 {
1068 scsi_qla_host_t *ha = to_qla_host(sdev->host);
1069 struct fc_rport *rport = starget_to_rport(sdev->sdev_target);
1070
1071 if (sdev->tagged_supported)
1072 scsi_activate_tcq(sdev, 32);
1073 else
1074 scsi_deactivate_tcq(sdev, 32);
1075
1076 rport->dev_loss_tmo = ha->port_down_retry_count + 5;
1077
1078 return 0;
1079 }
1080
1081 static void
1082 qla2xxx_slave_destroy(struct scsi_device *sdev)
1083 {
1084 sdev->hostdata = NULL;
1085 }
1086
1087 static int
1088 qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth)
1089 {
1090 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1091 return sdev->queue_depth;
1092 }
1093
1094 static int
1095 qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1096 {
1097 if (sdev->tagged_supported) {
1098 scsi_set_tag_type(sdev, tag_type);
1099 if (tag_type)
1100 scsi_activate_tcq(sdev, sdev->queue_depth);
1101 else
1102 scsi_deactivate_tcq(sdev, sdev->queue_depth);
1103 } else
1104 tag_type = 0;
1105
1106 return tag_type;
1107 }
1108
1109 /**
1110 * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1111 * @ha: HA context
1112 *
1113 * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1114 * supported addressing method.
1115 */
1116 static void
1117 qla2x00_config_dma_addressing(scsi_qla_host_t *ha)
1118 {
1119 /* Assume a 32bit DMA mask. */
1120 ha->flags.enable_64bit_addressing = 0;
1121
1122 if (!dma_set_mask(&ha->pdev->dev, DMA_64BIT_MASK)) {
1123 /* Any upper-dword bits set? */
1124 if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1125 !pci_set_consistent_dma_mask(ha->pdev, DMA_64BIT_MASK)) {
1126 /* Ok, a 64bit DMA mask is applicable. */
1127 ha->flags.enable_64bit_addressing = 1;
1128 ha->isp_ops.calc_req_entries = qla2x00_calc_iocbs_64;
1129 ha->isp_ops.build_iocbs = qla2x00_build_scsi_iocbs_64;
1130 return;
1131 }
1132 }
1133
1134 dma_set_mask(&ha->pdev->dev, DMA_32BIT_MASK);
1135 pci_set_consistent_dma_mask(ha->pdev, DMA_32BIT_MASK);
1136 }
1137
1138 static inline void
1139 qla2x00_set_isp_flags(scsi_qla_host_t *ha)
1140 {
1141 ha->device_type = DT_EXTENDED_IDS;
1142 switch (ha->pdev->device) {
1143 case PCI_DEVICE_ID_QLOGIC_ISP2100:
1144 ha->device_type |= DT_ISP2100;
1145 ha->device_type &= ~DT_EXTENDED_IDS;
1146 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1147 break;
1148 case PCI_DEVICE_ID_QLOGIC_ISP2200:
1149 ha->device_type |= DT_ISP2200;
1150 ha->device_type &= ~DT_EXTENDED_IDS;
1151 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1152 break;
1153 case PCI_DEVICE_ID_QLOGIC_ISP2300:
1154 ha->device_type |= DT_ISP2300;
1155 ha->device_type |= DT_ZIO_SUPPORTED;
1156 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1157 break;
1158 case PCI_DEVICE_ID_QLOGIC_ISP2312:
1159 ha->device_type |= DT_ISP2312;
1160 ha->device_type |= DT_ZIO_SUPPORTED;
1161 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1162 break;
1163 case PCI_DEVICE_ID_QLOGIC_ISP2322:
1164 ha->device_type |= DT_ISP2322;
1165 ha->device_type |= DT_ZIO_SUPPORTED;
1166 if (ha->pdev->subsystem_vendor == 0x1028 &&
1167 ha->pdev->subsystem_device == 0x0170)
1168 ha->device_type |= DT_OEM_001;
1169 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1170 break;
1171 case PCI_DEVICE_ID_QLOGIC_ISP6312:
1172 ha->device_type |= DT_ISP6312;
1173 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1174 break;
1175 case PCI_DEVICE_ID_QLOGIC_ISP6322:
1176 ha->device_type |= DT_ISP6322;
1177 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1178 break;
1179 case PCI_DEVICE_ID_QLOGIC_ISP2422:
1180 ha->device_type |= DT_ISP2422;
1181 ha->device_type |= DT_ZIO_SUPPORTED;
1182 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1183 break;
1184 case PCI_DEVICE_ID_QLOGIC_ISP2432:
1185 ha->device_type |= DT_ISP2432;
1186 ha->device_type |= DT_ZIO_SUPPORTED;
1187 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1188 break;
1189 case PCI_DEVICE_ID_QLOGIC_ISP5422:
1190 ha->device_type |= DT_ISP5422;
1191 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1192 break;
1193 case PCI_DEVICE_ID_QLOGIC_ISP5432:
1194 ha->device_type |= DT_ISP5432;
1195 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1196 break;
1197 }
1198 }
1199
1200 static int
1201 qla2x00_iospace_config(scsi_qla_host_t *ha)
1202 {
1203 unsigned long pio, pio_len, pio_flags;
1204 unsigned long mmio, mmio_len, mmio_flags;
1205
1206 /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1207 pio = pci_resource_start(ha->pdev, 0);
1208 pio_len = pci_resource_len(ha->pdev, 0);
1209 pio_flags = pci_resource_flags(ha->pdev, 0);
1210 if (pio_flags & IORESOURCE_IO) {
1211 if (pio_len < MIN_IOBASE_LEN) {
1212 qla_printk(KERN_WARNING, ha,
1213 "Invalid PCI I/O region size (%s)...\n",
1214 pci_name(ha->pdev));
1215 pio = 0;
1216 }
1217 } else {
1218 qla_printk(KERN_WARNING, ha,
1219 "region #0 not a PIO resource (%s)...\n",
1220 pci_name(ha->pdev));
1221 pio = 0;
1222 }
1223
1224 /* Use MMIO operations for all accesses. */
1225 mmio = pci_resource_start(ha->pdev, 1);
1226 mmio_len = pci_resource_len(ha->pdev, 1);
1227 mmio_flags = pci_resource_flags(ha->pdev, 1);
1228
1229 if (!(mmio_flags & IORESOURCE_MEM)) {
1230 qla_printk(KERN_ERR, ha,
1231 "region #0 not an MMIO resource (%s), aborting\n",
1232 pci_name(ha->pdev));
1233 goto iospace_error_exit;
1234 }
1235 if (mmio_len < MIN_IOBASE_LEN) {
1236 qla_printk(KERN_ERR, ha,
1237 "Invalid PCI mem region size (%s), aborting\n",
1238 pci_name(ha->pdev));
1239 goto iospace_error_exit;
1240 }
1241
1242 if (pci_request_regions(ha->pdev, "qla2xxx")) {
1243 qla_printk(KERN_WARNING, ha,
1244 "Failed to reserve PIO/MMIO regions (%s)\n",
1245 pci_name(ha->pdev));
1246
1247 goto iospace_error_exit;
1248 }
1249
1250 ha->pio_address = pio;
1251 ha->pio_length = pio_len;
1252 ha->iobase = ioremap(mmio, MIN_IOBASE_LEN);
1253 if (!ha->iobase) {
1254 qla_printk(KERN_ERR, ha,
1255 "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
1256
1257 goto iospace_error_exit;
1258 }
1259
1260 return (0);
1261
1262 iospace_error_exit:
1263 return (-ENOMEM);
1264 }
1265
1266 static void
1267 qla2x00_enable_intrs(scsi_qla_host_t *ha)
1268 {
1269 unsigned long flags = 0;
1270 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1271
1272 spin_lock_irqsave(&ha->hardware_lock, flags);
1273 ha->interrupts_on = 1;
1274 /* enable risc and host interrupts */
1275 WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1276 RD_REG_WORD(&reg->ictrl);
1277 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1278
1279 }
1280
1281 static void
1282 qla2x00_disable_intrs(scsi_qla_host_t *ha)
1283 {
1284 unsigned long flags = 0;
1285 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1286
1287 spin_lock_irqsave(&ha->hardware_lock, flags);
1288 ha->interrupts_on = 0;
1289 /* disable risc and host interrupts */
1290 WRT_REG_WORD(&reg->ictrl, 0);
1291 RD_REG_WORD(&reg->ictrl);
1292 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1293 }
1294
1295 static void
1296 qla24xx_enable_intrs(scsi_qla_host_t *ha)
1297 {
1298 unsigned long flags = 0;
1299 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1300
1301 spin_lock_irqsave(&ha->hardware_lock, flags);
1302 ha->interrupts_on = 1;
1303 WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1304 RD_REG_DWORD(&reg->ictrl);
1305 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1306 }
1307
1308 static void
1309 qla24xx_disable_intrs(scsi_qla_host_t *ha)
1310 {
1311 unsigned long flags = 0;
1312 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1313
1314 spin_lock_irqsave(&ha->hardware_lock, flags);
1315 ha->interrupts_on = 0;
1316 WRT_REG_DWORD(&reg->ictrl, 0);
1317 RD_REG_DWORD(&reg->ictrl);
1318 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1319 }
1320
1321 /*
1322 * PCI driver interface
1323 */
1324 static int qla2x00_probe_one(struct pci_dev *pdev)
1325 {
1326 int ret = -ENODEV;
1327 device_reg_t __iomem *reg;
1328 struct Scsi_Host *host;
1329 scsi_qla_host_t *ha;
1330 unsigned long flags = 0;
1331 unsigned long wait_switch = 0;
1332 char pci_info[20];
1333 char fw_str[30];
1334 fc_port_t *fcport;
1335 struct scsi_host_template *sht;
1336
1337 if (pci_enable_device(pdev))
1338 goto probe_out;
1339
1340 sht = &qla2x00_driver_template;
1341 if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
1342 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432)
1343 sht = &qla24xx_driver_template;
1344 host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
1345 if (host == NULL) {
1346 printk(KERN_WARNING
1347 "qla2xxx: Couldn't allocate host from scsi layer!\n");
1348 goto probe_disable_device;
1349 }
1350
1351 /* Clear our data area */
1352 ha = (scsi_qla_host_t *)host->hostdata;
1353 memset(ha, 0, sizeof(scsi_qla_host_t));
1354
1355 ha->pdev = pdev;
1356 ha->host = host;
1357 ha->host_no = host->host_no;
1358 sprintf(ha->host_str, "qla2xxx_%ld", ha->host_no);
1359
1360 /* Set ISP-type information. */
1361 qla2x00_set_isp_flags(ha);
1362
1363 /* Configure PCI I/O space */
1364 ret = qla2x00_iospace_config(ha);
1365 if (ret)
1366 goto probe_failed;
1367
1368 qla_printk(KERN_INFO, ha,
1369 "Found an ISP%04X, irq %d, iobase 0x%p\n", pdev->device, pdev->irq,
1370 ha->iobase);
1371
1372 spin_lock_init(&ha->hardware_lock);
1373
1374 ha->prev_topology = 0;
1375 ha->init_cb_size = sizeof(init_cb_t);
1376 ha->mgmt_svr_loop_id = MANAGEMENT_SERVER;
1377 ha->link_data_rate = LDR_UNKNOWN;
1378 ha->optrom_size = OPTROM_SIZE_2300;
1379
1380 /* Assign ISP specific operations. */
1381 ha->isp_ops.pci_config = qla2100_pci_config;
1382 ha->isp_ops.reset_chip = qla2x00_reset_chip;
1383 ha->isp_ops.chip_diag = qla2x00_chip_diag;
1384 ha->isp_ops.config_rings = qla2x00_config_rings;
1385 ha->isp_ops.reset_adapter = qla2x00_reset_adapter;
1386 ha->isp_ops.nvram_config = qla2x00_nvram_config;
1387 ha->isp_ops.update_fw_options = qla2x00_update_fw_options;
1388 ha->isp_ops.load_risc = qla2x00_load_risc;
1389 ha->isp_ops.pci_info_str = qla2x00_pci_info_str;
1390 ha->isp_ops.fw_version_str = qla2x00_fw_version_str;
1391 ha->isp_ops.intr_handler = qla2100_intr_handler;
1392 ha->isp_ops.enable_intrs = qla2x00_enable_intrs;
1393 ha->isp_ops.disable_intrs = qla2x00_disable_intrs;
1394 ha->isp_ops.abort_command = qla2x00_abort_command;
1395 ha->isp_ops.abort_target = qla2x00_abort_target;
1396 ha->isp_ops.fabric_login = qla2x00_login_fabric;
1397 ha->isp_ops.fabric_logout = qla2x00_fabric_logout;
1398 ha->isp_ops.calc_req_entries = qla2x00_calc_iocbs_32;
1399 ha->isp_ops.build_iocbs = qla2x00_build_scsi_iocbs_32;
1400 ha->isp_ops.prep_ms_iocb = qla2x00_prep_ms_iocb;
1401 ha->isp_ops.prep_ms_fdmi_iocb = qla2x00_prep_ms_fdmi_iocb;
1402 ha->isp_ops.read_nvram = qla2x00_read_nvram_data;
1403 ha->isp_ops.write_nvram = qla2x00_write_nvram_data;
1404 ha->isp_ops.fw_dump = qla2100_fw_dump;
1405 ha->isp_ops.ascii_fw_dump = qla2100_ascii_fw_dump;
1406 ha->isp_ops.read_optrom = qla2x00_read_optrom_data;
1407 ha->isp_ops.write_optrom = qla2x00_write_optrom_data;
1408 if (IS_QLA2100(ha)) {
1409 host->max_id = MAX_TARGETS_2100;
1410 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
1411 ha->request_q_length = REQUEST_ENTRY_CNT_2100;
1412 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1413 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1414 host->sg_tablesize = 32;
1415 ha->gid_list_info_size = 4;
1416 } else if (IS_QLA2200(ha)) {
1417 host->max_id = MAX_TARGETS_2200;
1418 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1419 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1420 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1421 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1422 ha->gid_list_info_size = 4;
1423 } else if (IS_QLA23XX(ha)) {
1424 host->max_id = MAX_TARGETS_2200;
1425 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1426 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1427 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1428 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1429 ha->isp_ops.pci_config = qla2300_pci_config;
1430 ha->isp_ops.intr_handler = qla2300_intr_handler;
1431 ha->isp_ops.fw_dump = qla2300_fw_dump;
1432 ha->isp_ops.ascii_fw_dump = qla2300_ascii_fw_dump;
1433 ha->isp_ops.beacon_on = qla2x00_beacon_on;
1434 ha->isp_ops.beacon_off = qla2x00_beacon_off;
1435 ha->isp_ops.beacon_blink = qla2x00_beacon_blink;
1436 ha->gid_list_info_size = 6;
1437 if (IS_QLA2322(ha) || IS_QLA6322(ha))
1438 ha->optrom_size = OPTROM_SIZE_2322;
1439 } else if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
1440 host->max_id = MAX_TARGETS_2200;
1441 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1442 ha->request_q_length = REQUEST_ENTRY_CNT_24XX;
1443 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1444 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1445 ha->init_cb_size = sizeof(struct init_cb_24xx);
1446 ha->mgmt_svr_loop_id = 10;
1447 ha->isp_ops.pci_config = qla24xx_pci_config;
1448 ha->isp_ops.reset_chip = qla24xx_reset_chip;
1449 ha->isp_ops.chip_diag = qla24xx_chip_diag;
1450 ha->isp_ops.config_rings = qla24xx_config_rings;
1451 ha->isp_ops.reset_adapter = qla24xx_reset_adapter;
1452 ha->isp_ops.nvram_config = qla24xx_nvram_config;
1453 ha->isp_ops.update_fw_options = qla24xx_update_fw_options;
1454 ha->isp_ops.load_risc = qla24xx_load_risc;
1455 ha->isp_ops.pci_info_str = qla24xx_pci_info_str;
1456 ha->isp_ops.fw_version_str = qla24xx_fw_version_str;
1457 ha->isp_ops.intr_handler = qla24xx_intr_handler;
1458 ha->isp_ops.enable_intrs = qla24xx_enable_intrs;
1459 ha->isp_ops.disable_intrs = qla24xx_disable_intrs;
1460 ha->isp_ops.abort_command = qla24xx_abort_command;
1461 ha->isp_ops.abort_target = qla24xx_abort_target;
1462 ha->isp_ops.fabric_login = qla24xx_login_fabric;
1463 ha->isp_ops.fabric_logout = qla24xx_fabric_logout;
1464 ha->isp_ops.prep_ms_iocb = qla24xx_prep_ms_iocb;
1465 ha->isp_ops.prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb;
1466 ha->isp_ops.read_nvram = qla24xx_read_nvram_data;
1467 ha->isp_ops.write_nvram = qla24xx_write_nvram_data;
1468 ha->isp_ops.fw_dump = qla24xx_fw_dump;
1469 ha->isp_ops.ascii_fw_dump = qla24xx_ascii_fw_dump;
1470 ha->isp_ops.read_optrom = qla24xx_read_optrom_data;
1471 ha->isp_ops.write_optrom = qla24xx_write_optrom_data;
1472 ha->isp_ops.beacon_on = qla24xx_beacon_on;
1473 ha->isp_ops.beacon_off = qla24xx_beacon_off;
1474 ha->isp_ops.beacon_blink = qla24xx_beacon_blink;
1475 ha->gid_list_info_size = 8;
1476 ha->optrom_size = OPTROM_SIZE_24XX;
1477 }
1478 host->can_queue = ha->request_q_length + 128;
1479
1480 /* load the F/W, read paramaters, and init the H/W */
1481 ha->instance = num_hosts;
1482
1483 init_MUTEX(&ha->mbx_cmd_sem);
1484 init_MUTEX_LOCKED(&ha->mbx_intr_sem);
1485
1486 INIT_LIST_HEAD(&ha->list);
1487 INIT_LIST_HEAD(&ha->fcports);
1488
1489 /*
1490 * These locks are used to prevent more than one CPU
1491 * from modifying the queue at the same time. The
1492 * higher level "host_lock" will reduce most
1493 * contention for these locks.
1494 */
1495 spin_lock_init(&ha->mbx_reg_lock);
1496
1497 qla2x00_config_dma_addressing(ha);
1498 if (qla2x00_mem_alloc(ha)) {
1499 qla_printk(KERN_WARNING, ha,
1500 "[ERROR] Failed to allocate memory for adapter\n");
1501
1502 ret = -ENOMEM;
1503 goto probe_failed;
1504 }
1505
1506 if (qla2x00_initialize_adapter(ha) &&
1507 !(ha->device_flags & DFLG_NO_CABLE)) {
1508
1509 qla_printk(KERN_WARNING, ha,
1510 "Failed to initialize adapter\n");
1511
1512 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
1513 "Adapter flags %x.\n",
1514 ha->host_no, ha->device_flags));
1515
1516 ret = -ENODEV;
1517 goto probe_failed;
1518 }
1519
1520 /*
1521 * Startup the kernel thread for this host adapter
1522 */
1523 ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
1524 "%s_dpc", ha->host_str);
1525 if (IS_ERR(ha->dpc_thread)) {
1526 qla_printk(KERN_WARNING, ha,
1527 "Unable to start DPC thread!\n");
1528 ret = PTR_ERR(ha->dpc_thread);
1529 goto probe_failed;
1530 }
1531
1532 host->this_id = 255;
1533 host->cmd_per_lun = 3;
1534 host->unique_id = ha->instance;
1535 host->max_cmd_len = MAX_CMDSZ;
1536 host->max_channel = MAX_BUSES - 1;
1537 host->max_lun = MAX_LUNS;
1538 host->transportt = qla2xxx_transport_template;
1539
1540 ret = request_irq(pdev->irq, ha->isp_ops.intr_handler,
1541 SA_INTERRUPT|SA_SHIRQ, "qla2xxx", ha);
1542 if (ret) {
1543 qla_printk(KERN_WARNING, ha,
1544 "Failed to reserve interrupt %d already in use.\n",
1545 pdev->irq);
1546 goto probe_failed;
1547 }
1548 host->irq = pdev->irq;
1549
1550 /* Initialized the timer */
1551 qla2x00_start_timer(ha, qla2x00_timer, WATCH_INTERVAL);
1552
1553 DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
1554 ha->host_no, ha));
1555
1556 ha->isp_ops.disable_intrs(ha);
1557
1558 spin_lock_irqsave(&ha->hardware_lock, flags);
1559 reg = ha->iobase;
1560 if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
1561 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_HOST_INT);
1562 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_RISC_INT);
1563 } else {
1564 WRT_REG_WORD(&reg->isp.semaphore, 0);
1565 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_RISC_INT);
1566 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_HOST_INT);
1567
1568 /* Enable proper parity */
1569 if (!IS_QLA2100(ha) && !IS_QLA2200(ha)) {
1570 if (IS_QLA2300(ha))
1571 /* SRAM parity */
1572 WRT_REG_WORD(&reg->isp.hccr,
1573 (HCCR_ENABLE_PARITY + 0x1));
1574 else
1575 /* SRAM, Instruction RAM and GP RAM parity */
1576 WRT_REG_WORD(&reg->isp.hccr,
1577 (HCCR_ENABLE_PARITY + 0x7));
1578 }
1579 }
1580 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1581
1582 ha->isp_ops.enable_intrs(ha);
1583
1584 /* v2.19.5b6 */
1585 /*
1586 * Wait around max loop_reset_delay secs for the devices to come
1587 * on-line. We don't want Linux scanning before we are ready.
1588 *
1589 */
1590 for (wait_switch = jiffies + (ha->loop_reset_delay * HZ);
1591 time_before(jiffies,wait_switch) &&
1592 !(ha->device_flags & (DFLG_NO_CABLE | DFLG_FABRIC_DEVICES))
1593 && (ha->device_flags & SWITCH_FOUND) ;) {
1594
1595 qla2x00_check_fabric_devices(ha);
1596
1597 msleep(10);
1598 }
1599
1600 pci_set_drvdata(pdev, ha);
1601 ha->flags.init_done = 1;
1602 num_hosts++;
1603
1604 ret = scsi_add_host(host, &pdev->dev);
1605 if (ret)
1606 goto probe_failed;
1607
1608 qla2x00_alloc_sysfs_attr(ha);
1609
1610 qla2x00_init_host_attr(ha);
1611
1612 qla_printk(KERN_INFO, ha, "\n"
1613 " QLogic Fibre Channel HBA Driver: %s\n"
1614 " QLogic %s - %s\n"
1615 " ISP%04X: %s @ %s hdma%c, host#=%ld, fw=%s\n",
1616 qla2x00_version_str, ha->model_number,
1617 ha->model_desc ? ha->model_desc: "", pdev->device,
1618 ha->isp_ops.pci_info_str(ha, pci_info), pci_name(pdev),
1619 ha->flags.enable_64bit_addressing ? '+': '-', ha->host_no,
1620 ha->isp_ops.fw_version_str(ha, fw_str));
1621
1622 /* Go with fc_rport registration. */
1623 list_for_each_entry(fcport, &ha->fcports, list)
1624 qla2x00_reg_remote_port(ha, fcport);
1625
1626 return 0;
1627
1628 probe_failed:
1629 qla2x00_free_device(ha);
1630
1631 scsi_host_put(host);
1632
1633 probe_disable_device:
1634 pci_disable_device(pdev);
1635
1636 probe_out:
1637 return ret;
1638 }
1639
1640 static void qla2x00_remove_one(struct pci_dev *pdev)
1641 {
1642 scsi_qla_host_t *ha;
1643
1644 ha = pci_get_drvdata(pdev);
1645
1646 qla2x00_free_sysfs_attr(ha);
1647
1648 fc_remove_host(ha->host);
1649
1650 scsi_remove_host(ha->host);
1651
1652 qla2x00_free_device(ha);
1653
1654 scsi_host_put(ha->host);
1655
1656 pci_set_drvdata(pdev, NULL);
1657 }
1658
1659 static void
1660 qla2x00_free_device(scsi_qla_host_t *ha)
1661 {
1662 /* Disable timer */
1663 if (ha->timer_active)
1664 qla2x00_stop_timer(ha);
1665
1666 /* Kill the kernel thread for this host */
1667 if (ha->dpc_thread) {
1668 struct task_struct *t = ha->dpc_thread;
1669
1670 /*
1671 * qla2xxx_wake_dpc checks for ->dpc_thread
1672 * so we need to zero it out.
1673 */
1674 ha->dpc_thread = NULL;
1675 kthread_stop(t);
1676 }
1677
1678 /* Stop currently executing firmware. */
1679 qla2x00_stop_firmware(ha);
1680
1681 /* turn-off interrupts on the card */
1682 if (ha->interrupts_on)
1683 ha->isp_ops.disable_intrs(ha);
1684
1685 qla2x00_mem_free(ha);
1686
1687 ha->flags.online = 0;
1688
1689 /* Detach interrupts */
1690 if (ha->pdev->irq)
1691 free_irq(ha->pdev->irq, ha);
1692
1693 /* release io space registers */
1694 if (ha->iobase)
1695 iounmap(ha->iobase);
1696 pci_release_regions(ha->pdev);
1697
1698 pci_disable_device(ha->pdev);
1699 }
1700
1701 static inline void
1702 qla2x00_schedule_rport_del(struct scsi_qla_host *ha, fc_port_t *fcport,
1703 int defer)
1704 {
1705 unsigned long flags;
1706 struct fc_rport *rport;
1707
1708 if (!fcport->rport)
1709 return;
1710
1711 rport = fcport->rport;
1712 if (defer) {
1713 spin_lock_irqsave(&fcport->rport_lock, flags);
1714 fcport->drport = rport;
1715 fcport->rport = NULL;
1716 *(fc_port_t **)rport->dd_data = NULL;
1717 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1718 set_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags);
1719 } else {
1720 spin_lock_irqsave(&fcport->rport_lock, flags);
1721 fcport->rport = NULL;
1722 *(fc_port_t **)rport->dd_data = NULL;
1723 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1724 fc_remote_port_delete(rport);
1725 }
1726 }
1727
1728 /*
1729 * qla2x00_mark_device_lost Updates fcport state when device goes offline.
1730 *
1731 * Input: ha = adapter block pointer. fcport = port structure pointer.
1732 *
1733 * Return: None.
1734 *
1735 * Context:
1736 */
1737 void qla2x00_mark_device_lost(scsi_qla_host_t *ha, fc_port_t *fcport,
1738 int do_login, int defer)
1739 {
1740 if (atomic_read(&fcport->state) == FCS_ONLINE)
1741 qla2x00_schedule_rport_del(ha, fcport, defer);
1742
1743 /*
1744 * We may need to retry the login, so don't change the state of the
1745 * port but do the retries.
1746 */
1747 if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
1748 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1749
1750 if (!do_login)
1751 return;
1752
1753 if (fcport->login_retry == 0) {
1754 fcport->login_retry = ha->login_retry_count;
1755 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
1756
1757 DEBUG(printk("scsi(%ld): Port login retry: "
1758 "%02x%02x%02x%02x%02x%02x%02x%02x, "
1759 "id = 0x%04x retry cnt=%d\n",
1760 ha->host_no,
1761 fcport->port_name[0],
1762 fcport->port_name[1],
1763 fcport->port_name[2],
1764 fcport->port_name[3],
1765 fcport->port_name[4],
1766 fcport->port_name[5],
1767 fcport->port_name[6],
1768 fcport->port_name[7],
1769 fcport->loop_id,
1770 fcport->login_retry));
1771 }
1772 }
1773
1774 /*
1775 * qla2x00_mark_all_devices_lost
1776 * Updates fcport state when device goes offline.
1777 *
1778 * Input:
1779 * ha = adapter block pointer.
1780 * fcport = port structure pointer.
1781 *
1782 * Return:
1783 * None.
1784 *
1785 * Context:
1786 */
1787 void
1788 qla2x00_mark_all_devices_lost(scsi_qla_host_t *ha, int defer)
1789 {
1790 fc_port_t *fcport;
1791
1792 list_for_each_entry(fcport, &ha->fcports, list) {
1793 if (fcport->port_type != FCT_TARGET)
1794 continue;
1795
1796 /*
1797 * No point in marking the device as lost, if the device is
1798 * already DEAD.
1799 */
1800 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
1801 continue;
1802 if (atomic_read(&fcport->state) == FCS_ONLINE)
1803 qla2x00_schedule_rport_del(ha, fcport, defer);
1804 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1805 }
1806
1807 if (defer)
1808 qla2xxx_wake_dpc(ha);
1809 }
1810
1811 /*
1812 * qla2x00_mem_alloc
1813 * Allocates adapter memory.
1814 *
1815 * Returns:
1816 * 0 = success.
1817 * 1 = failure.
1818 */
1819 static uint8_t
1820 qla2x00_mem_alloc(scsi_qla_host_t *ha)
1821 {
1822 char name[16];
1823 uint8_t status = 1;
1824 int retry= 10;
1825
1826 do {
1827 /*
1828 * This will loop only once if everything goes well, else some
1829 * number of retries will be performed to get around a kernel
1830 * bug where available mem is not allocated until after a
1831 * little delay and a retry.
1832 */
1833 ha->request_ring = dma_alloc_coherent(&ha->pdev->dev,
1834 (ha->request_q_length + 1) * sizeof(request_t),
1835 &ha->request_dma, GFP_KERNEL);
1836 if (ha->request_ring == NULL) {
1837 qla_printk(KERN_WARNING, ha,
1838 "Memory Allocation failed - request_ring\n");
1839
1840 qla2x00_mem_free(ha);
1841 msleep(100);
1842
1843 continue;
1844 }
1845
1846 ha->response_ring = dma_alloc_coherent(&ha->pdev->dev,
1847 (ha->response_q_length + 1) * sizeof(response_t),
1848 &ha->response_dma, GFP_KERNEL);
1849 if (ha->response_ring == NULL) {
1850 qla_printk(KERN_WARNING, ha,
1851 "Memory Allocation failed - response_ring\n");
1852
1853 qla2x00_mem_free(ha);
1854 msleep(100);
1855
1856 continue;
1857 }
1858
1859 ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
1860 &ha->gid_list_dma, GFP_KERNEL);
1861 if (ha->gid_list == NULL) {
1862 qla_printk(KERN_WARNING, ha,
1863 "Memory Allocation failed - gid_list\n");
1864
1865 qla2x00_mem_free(ha);
1866 msleep(100);
1867
1868 continue;
1869 }
1870
1871 snprintf(name, sizeof(name), "qla2xxx_%ld", ha->host_no);
1872 ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
1873 DMA_POOL_SIZE, 8, 0);
1874 if (ha->s_dma_pool == NULL) {
1875 qla_printk(KERN_WARNING, ha,
1876 "Memory Allocation failed - s_dma_pool\n");
1877
1878 qla2x00_mem_free(ha);
1879 msleep(100);
1880
1881 continue;
1882 }
1883
1884 /* get consistent memory allocated for init control block */
1885 ha->init_cb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
1886 &ha->init_cb_dma);
1887 if (ha->init_cb == NULL) {
1888 qla_printk(KERN_WARNING, ha,
1889 "Memory Allocation failed - init_cb\n");
1890
1891 qla2x00_mem_free(ha);
1892 msleep(100);
1893
1894 continue;
1895 }
1896 memset(ha->init_cb, 0, ha->init_cb_size);
1897
1898 /* Allocate ioctl related memory. */
1899 if (qla2x00_alloc_ioctl_mem(ha)) {
1900 qla_printk(KERN_WARNING, ha,
1901 "Memory Allocation failed - ioctl_mem\n");
1902
1903 qla2x00_mem_free(ha);
1904 msleep(100);
1905
1906 continue;
1907 }
1908
1909 if (qla2x00_allocate_sp_pool(ha)) {
1910 qla_printk(KERN_WARNING, ha,
1911 "Memory Allocation failed - "
1912 "qla2x00_allocate_sp_pool()\n");
1913
1914 qla2x00_mem_free(ha);
1915 msleep(100);
1916
1917 continue;
1918 }
1919
1920 /* Allocate memory for SNS commands */
1921 if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
1922 /* Get consistent memory allocated for SNS commands */
1923 ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
1924 sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma,
1925 GFP_KERNEL);
1926 if (ha->sns_cmd == NULL) {
1927 /* error */
1928 qla_printk(KERN_WARNING, ha,
1929 "Memory Allocation failed - sns_cmd\n");
1930
1931 qla2x00_mem_free(ha);
1932 msleep(100);
1933
1934 continue;
1935 }
1936 memset(ha->sns_cmd, 0, sizeof(struct sns_cmd_pkt));
1937 } else {
1938 /* Get consistent memory allocated for MS IOCB */
1939 ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
1940 &ha->ms_iocb_dma);
1941 if (ha->ms_iocb == NULL) {
1942 /* error */
1943 qla_printk(KERN_WARNING, ha,
1944 "Memory Allocation failed - ms_iocb\n");
1945
1946 qla2x00_mem_free(ha);
1947 msleep(100);
1948
1949 continue;
1950 }
1951 memset(ha->ms_iocb, 0, sizeof(ms_iocb_entry_t));
1952
1953 /*
1954 * Get consistent memory allocated for CT SNS
1955 * commands
1956 */
1957 ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
1958 sizeof(struct ct_sns_pkt), &ha->ct_sns_dma,
1959 GFP_KERNEL);
1960 if (ha->ct_sns == NULL) {
1961 /* error */
1962 qla_printk(KERN_WARNING, ha,
1963 "Memory Allocation failed - ct_sns\n");
1964
1965 qla2x00_mem_free(ha);
1966 msleep(100);
1967
1968 continue;
1969 }
1970 memset(ha->ct_sns, 0, sizeof(struct ct_sns_pkt));
1971 }
1972
1973 /* Done all allocations without any error. */
1974 status = 0;
1975
1976 } while (retry-- && status != 0);
1977
1978 if (status) {
1979 printk(KERN_WARNING
1980 "%s(): **** FAILED ****\n", __func__);
1981 }
1982
1983 return(status);
1984 }
1985
1986 /*
1987 * qla2x00_mem_free
1988 * Frees all adapter allocated memory.
1989 *
1990 * Input:
1991 * ha = adapter block pointer.
1992 */
1993 static void
1994 qla2x00_mem_free(scsi_qla_host_t *ha)
1995 {
1996 struct list_head *fcpl, *fcptemp;
1997 fc_port_t *fcport;
1998
1999 if (ha == NULL) {
2000 /* error */
2001 DEBUG2(printk("%s(): ERROR invalid ha pointer.\n", __func__));
2002 return;
2003 }
2004
2005 /* free ioctl memory */
2006 qla2x00_free_ioctl_mem(ha);
2007
2008 /* free sp pool */
2009 qla2x00_free_sp_pool(ha);
2010
2011 if (ha->sns_cmd)
2012 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
2013 ha->sns_cmd, ha->sns_cmd_dma);
2014
2015 if (ha->ct_sns)
2016 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2017 ha->ct_sns, ha->ct_sns_dma);
2018
2019 if (ha->ms_iocb)
2020 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2021
2022 if (ha->init_cb)
2023 dma_pool_free(ha->s_dma_pool, ha->init_cb, ha->init_cb_dma);
2024
2025 if (ha->s_dma_pool)
2026 dma_pool_destroy(ha->s_dma_pool);
2027
2028 if (ha->gid_list)
2029 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2030 ha->gid_list_dma);
2031
2032 if (ha->response_ring)
2033 dma_free_coherent(&ha->pdev->dev,
2034 (ha->response_q_length + 1) * sizeof(response_t),
2035 ha->response_ring, ha->response_dma);
2036
2037 if (ha->request_ring)
2038 dma_free_coherent(&ha->pdev->dev,
2039 (ha->request_q_length + 1) * sizeof(request_t),
2040 ha->request_ring, ha->request_dma);
2041
2042 ha->sns_cmd = NULL;
2043 ha->sns_cmd_dma = 0;
2044 ha->ct_sns = NULL;
2045 ha->ct_sns_dma = 0;
2046 ha->ms_iocb = NULL;
2047 ha->ms_iocb_dma = 0;
2048 ha->init_cb = NULL;
2049 ha->init_cb_dma = 0;
2050
2051 ha->s_dma_pool = NULL;
2052
2053 ha->gid_list = NULL;
2054 ha->gid_list_dma = 0;
2055
2056 ha->response_ring = NULL;
2057 ha->response_dma = 0;
2058 ha->request_ring = NULL;
2059 ha->request_dma = 0;
2060
2061 list_for_each_safe(fcpl, fcptemp, &ha->fcports) {
2062 fcport = list_entry(fcpl, fc_port_t, list);
2063
2064 /* fc ports */
2065 list_del_init(&fcport->list);
2066 kfree(fcport);
2067 }
2068 INIT_LIST_HEAD(&ha->fcports);
2069
2070 if (ha->fw_dump)
2071 free_pages((unsigned long)ha->fw_dump, ha->fw_dump_order);
2072
2073 vfree(ha->fw_dump24);
2074
2075 vfree(ha->fw_dump_buffer);
2076
2077 ha->fw_dump = NULL;
2078 ha->fw_dump24 = NULL;
2079 ha->fw_dumped = 0;
2080 ha->fw_dump_reading = 0;
2081 ha->fw_dump_buffer = NULL;
2082
2083 vfree(ha->optrom_buffer);
2084 }
2085
2086 /*
2087 * qla2x00_allocate_sp_pool
2088 * This routine is called during initialization to allocate
2089 * memory for local srb_t.
2090 *
2091 * Input:
2092 * ha = adapter block pointer.
2093 *
2094 * Context:
2095 * Kernel context.
2096 */
2097 static int
2098 qla2x00_allocate_sp_pool(scsi_qla_host_t *ha)
2099 {
2100 int rval;
2101
2102 rval = QLA_SUCCESS;
2103 ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
2104 if (ha->srb_mempool == NULL) {
2105 qla_printk(KERN_INFO, ha, "Unable to allocate SRB mempool.\n");
2106 rval = QLA_FUNCTION_FAILED;
2107 }
2108 return (rval);
2109 }
2110
2111 /*
2112 * This routine frees all adapter allocated memory.
2113 *
2114 */
2115 static void
2116 qla2x00_free_sp_pool( scsi_qla_host_t *ha)
2117 {
2118 if (ha->srb_mempool) {
2119 mempool_destroy(ha->srb_mempool);
2120 ha->srb_mempool = NULL;
2121 }
2122 }
2123
2124 /**************************************************************************
2125 * qla2x00_do_dpc
2126 * This kernel thread is a task that is schedule by the interrupt handler
2127 * to perform the background processing for interrupts.
2128 *
2129 * Notes:
2130 * This task always run in the context of a kernel thread. It
2131 * is kick-off by the driver's detect code and starts up
2132 * up one per adapter. It immediately goes to sleep and waits for
2133 * some fibre event. When either the interrupt handler or
2134 * the timer routine detects a event it will one of the task
2135 * bits then wake us up.
2136 **************************************************************************/
2137 static int
2138 qla2x00_do_dpc(void *data)
2139 {
2140 scsi_qla_host_t *ha;
2141 fc_port_t *fcport;
2142 uint8_t status;
2143 uint16_t next_loopid;
2144
2145 ha = (scsi_qla_host_t *)data;
2146
2147 set_user_nice(current, -20);
2148
2149 while (!kthread_should_stop()) {
2150 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
2151
2152 set_current_state(TASK_INTERRUPTIBLE);
2153 schedule();
2154 __set_current_state(TASK_RUNNING);
2155
2156 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
2157
2158 /* Initialization not yet finished. Don't do anything yet. */
2159 if (!ha->flags.init_done)
2160 continue;
2161
2162 DEBUG3(printk("scsi(%ld): DPC handler\n", ha->host_no));
2163
2164 ha->dpc_active = 1;
2165
2166 if (ha->flags.mbox_busy) {
2167 ha->dpc_active = 0;
2168 continue;
2169 }
2170
2171 if (test_and_clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) {
2172
2173 DEBUG(printk("scsi(%ld): dpc: sched "
2174 "qla2x00_abort_isp ha = %p\n",
2175 ha->host_no, ha));
2176 if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
2177 &ha->dpc_flags))) {
2178
2179 if (qla2x00_abort_isp(ha)) {
2180 /* failed. retry later */
2181 set_bit(ISP_ABORT_NEEDED,
2182 &ha->dpc_flags);
2183 }
2184 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2185 }
2186 DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
2187 ha->host_no));
2188 }
2189
2190 if (test_and_clear_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags))
2191 qla2x00_update_fcports(ha);
2192
2193 if (test_and_clear_bit(LOOP_RESET_NEEDED, &ha->dpc_flags)) {
2194 DEBUG(printk("scsi(%ld): dpc: sched loop_reset()\n",
2195 ha->host_no));
2196 qla2x00_loop_reset(ha);
2197 }
2198
2199 if (test_and_clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) &&
2200 (!(test_and_set_bit(RESET_ACTIVE, &ha->dpc_flags)))) {
2201
2202 DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
2203 ha->host_no));
2204
2205 qla2x00_rst_aen(ha);
2206 clear_bit(RESET_ACTIVE, &ha->dpc_flags);
2207 }
2208
2209 /* Retry each device up to login retry count */
2210 if ((test_and_clear_bit(RELOGIN_NEEDED, &ha->dpc_flags)) &&
2211 !test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) &&
2212 atomic_read(&ha->loop_state) != LOOP_DOWN) {
2213
2214 DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
2215 ha->host_no));
2216
2217 next_loopid = 0;
2218 list_for_each_entry(fcport, &ha->fcports, list) {
2219 if (fcport->port_type != FCT_TARGET)
2220 continue;
2221
2222 /*
2223 * If the port is not ONLINE then try to login
2224 * to it if we haven't run out of retries.
2225 */
2226 if (atomic_read(&fcport->state) != FCS_ONLINE &&
2227 fcport->login_retry) {
2228
2229 fcport->login_retry--;
2230 if (fcport->flags & FCF_FABRIC_DEVICE) {
2231 if (fcport->flags &
2232 FCF_TAPE_PRESENT)
2233 ha->isp_ops.fabric_logout(
2234 ha, fcport->loop_id,
2235 fcport->d_id.b.domain,
2236 fcport->d_id.b.area,
2237 fcport->d_id.b.al_pa);
2238 status = qla2x00_fabric_login(
2239 ha, fcport, &next_loopid);
2240 } else
2241 status =
2242 qla2x00_local_device_login(
2243 ha, fcport);
2244
2245 if (status == QLA_SUCCESS) {
2246 fcport->old_loop_id = fcport->loop_id;
2247
2248 DEBUG(printk("scsi(%ld): port login OK: logged in ID 0x%x\n",
2249 ha->host_no, fcport->loop_id));
2250
2251 qla2x00_update_fcport(ha,
2252 fcport);
2253 } else if (status == 1) {
2254 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
2255 /* retry the login again */
2256 DEBUG(printk("scsi(%ld): Retrying %d login again loop_id 0x%x\n",
2257 ha->host_no,
2258 fcport->login_retry, fcport->loop_id));
2259 } else {
2260 fcport->login_retry = 0;
2261 }
2262 }
2263 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2264 break;
2265 }
2266 DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
2267 ha->host_no));
2268 }
2269
2270 if ((test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags)) &&
2271 atomic_read(&ha->loop_state) != LOOP_DOWN) {
2272
2273 clear_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags);
2274 DEBUG(printk("scsi(%ld): qla2x00_login_retry()\n",
2275 ha->host_no));
2276
2277 set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
2278
2279 DEBUG(printk("scsi(%ld): qla2x00_login_retry - end\n",
2280 ha->host_no));
2281 }
2282
2283 if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
2284
2285 DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
2286 ha->host_no));
2287
2288 if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
2289 &ha->dpc_flags))) {
2290
2291 qla2x00_loop_resync(ha);
2292
2293 clear_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags);
2294 }
2295
2296 DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
2297 ha->host_no));
2298 }
2299
2300 if (test_and_clear_bit(FCPORT_RESCAN_NEEDED, &ha->dpc_flags)) {
2301
2302 DEBUG(printk("scsi(%ld): Rescan flagged fcports...\n",
2303 ha->host_no));
2304
2305 qla2x00_rescan_fcports(ha);
2306
2307 DEBUG(printk("scsi(%ld): Rescan flagged fcports..."
2308 "end.\n",
2309 ha->host_no));
2310 }
2311
2312 if (!ha->interrupts_on)
2313 ha->isp_ops.enable_intrs(ha);
2314
2315 if (test_and_clear_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags))
2316 ha->isp_ops.beacon_blink(ha);
2317
2318 ha->dpc_active = 0;
2319 } /* End of while(1) */
2320
2321 DEBUG(printk("scsi(%ld): DPC handler exiting\n", ha->host_no));
2322
2323 /*
2324 * Make sure that nobody tries to wake us up again.
2325 */
2326 ha->dpc_active = 0;
2327
2328 return 0;
2329 }
2330
2331 void
2332 qla2xxx_wake_dpc(scsi_qla_host_t *ha)
2333 {
2334 if (ha->dpc_thread)
2335 wake_up_process(ha->dpc_thread);
2336 }
2337
2338 /*
2339 * qla2x00_rst_aen
2340 * Processes asynchronous reset.
2341 *
2342 * Input:
2343 * ha = adapter block pointer.
2344 */
2345 static void
2346 qla2x00_rst_aen(scsi_qla_host_t *ha)
2347 {
2348 if (ha->flags.online && !ha->flags.reset_active &&
2349 !atomic_read(&ha->loop_down_timer) &&
2350 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) {
2351 do {
2352 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
2353
2354 /*
2355 * Issue marker command only when we are going to start
2356 * the I/O.
2357 */
2358 ha->marker_needed = 1;
2359 } while (!atomic_read(&ha->loop_down_timer) &&
2360 (test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags)));
2361 }
2362 }
2363
2364 static void
2365 qla2x00_sp_free_dma(scsi_qla_host_t *ha, srb_t *sp)
2366 {
2367 struct scsi_cmnd *cmd = sp->cmd;
2368
2369 if (sp->flags & SRB_DMA_VALID) {
2370 if (cmd->use_sg) {
2371 dma_unmap_sg(&ha->pdev->dev, cmd->request_buffer,
2372 cmd->use_sg, cmd->sc_data_direction);
2373 } else if (cmd->request_bufflen) {
2374 dma_unmap_single(&ha->pdev->dev, sp->dma_handle,
2375 cmd->request_bufflen, cmd->sc_data_direction);
2376 }
2377 sp->flags &= ~SRB_DMA_VALID;
2378 }
2379 CMD_SP(cmd) = NULL;
2380 }
2381
2382 void
2383 qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *sp)
2384 {
2385 struct scsi_cmnd *cmd = sp->cmd;
2386
2387 qla2x00_sp_free_dma(ha, sp);
2388
2389 mempool_free(sp, ha->srb_mempool);
2390
2391 cmd->scsi_done(cmd);
2392 }
2393
2394 /**************************************************************************
2395 * qla2x00_timer
2396 *
2397 * Description:
2398 * One second timer
2399 *
2400 * Context: Interrupt
2401 ***************************************************************************/
2402 static void
2403 qla2x00_timer(scsi_qla_host_t *ha)
2404 {
2405 unsigned long cpu_flags = 0;
2406 fc_port_t *fcport;
2407 int start_dpc = 0;
2408 int index;
2409 srb_t *sp;
2410 int t;
2411
2412 /*
2413 * Ports - Port down timer.
2414 *
2415 * Whenever, a port is in the LOST state we start decrementing its port
2416 * down timer every second until it reaches zero. Once it reaches zero
2417 * the port it marked DEAD.
2418 */
2419 t = 0;
2420 list_for_each_entry(fcport, &ha->fcports, list) {
2421 if (fcport->port_type != FCT_TARGET)
2422 continue;
2423
2424 if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
2425
2426 if (atomic_read(&fcport->port_down_timer) == 0)
2427 continue;
2428
2429 if (atomic_dec_and_test(&fcport->port_down_timer) != 0)
2430 atomic_set(&fcport->state, FCS_DEVICE_DEAD);
2431
2432 DEBUG(printk("scsi(%ld): fcport-%d - port retry count: "
2433 "%d remaining\n",
2434 ha->host_no,
2435 t, atomic_read(&fcport->port_down_timer)));
2436 }
2437 t++;
2438 } /* End of for fcport */
2439
2440
2441 /* Loop down handler. */
2442 if (atomic_read(&ha->loop_down_timer) > 0 &&
2443 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags)) && ha->flags.online) {
2444
2445 if (atomic_read(&ha->loop_down_timer) ==
2446 ha->loop_down_abort_time) {
2447
2448 DEBUG(printk("scsi(%ld): Loop Down - aborting the "
2449 "queues before time expire\n",
2450 ha->host_no));
2451
2452 if (!IS_QLA2100(ha) && ha->link_down_timeout)
2453 atomic_set(&ha->loop_state, LOOP_DEAD);
2454
2455 /* Schedule an ISP abort to return any tape commands. */
2456 spin_lock_irqsave(&ha->hardware_lock, cpu_flags);
2457 for (index = 1; index < MAX_OUTSTANDING_COMMANDS;
2458 index++) {
2459 fc_port_t *sfcp;
2460
2461 sp = ha->outstanding_cmds[index];
2462 if (!sp)
2463 continue;
2464 sfcp = sp->fcport;
2465 if (!(sfcp->flags & FCF_TAPE_PRESENT))
2466 continue;
2467
2468 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2469 break;
2470 }
2471 spin_unlock_irqrestore(&ha->hardware_lock, cpu_flags);
2472
2473 set_bit(ABORT_QUEUES_NEEDED, &ha->dpc_flags);
2474 start_dpc++;
2475 }
2476
2477 /* if the loop has been down for 4 minutes, reinit adapter */
2478 if (atomic_dec_and_test(&ha->loop_down_timer) != 0) {
2479 DEBUG(printk("scsi(%ld): Loop down exceed 4 mins - "
2480 "restarting queues.\n",
2481 ha->host_no));
2482
2483 set_bit(RESTART_QUEUES_NEEDED, &ha->dpc_flags);
2484 start_dpc++;
2485
2486 if (!(ha->device_flags & DFLG_NO_CABLE)) {
2487 DEBUG(printk("scsi(%ld): Loop down - "
2488 "aborting ISP.\n",
2489 ha->host_no));
2490 qla_printk(KERN_WARNING, ha,
2491 "Loop down - aborting ISP.\n");
2492
2493 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2494 }
2495 }
2496 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
2497 ha->host_no,
2498 atomic_read(&ha->loop_down_timer)));
2499 }
2500
2501 /* Check if beacon LED needs to be blinked */
2502 if (ha->beacon_blink_led == 1) {
2503 set_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags);
2504 start_dpc++;
2505 }
2506
2507 /* Schedule the DPC routine if needed */
2508 if ((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags) ||
2509 test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) ||
2510 test_bit(LOOP_RESET_NEEDED, &ha->dpc_flags) ||
2511 test_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags) ||
2512 start_dpc ||
2513 test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags) ||
2514 test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) ||
2515 test_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags) ||
2516 test_bit(RELOGIN_NEEDED, &ha->dpc_flags)))
2517 qla2xxx_wake_dpc(ha);
2518
2519 qla2x00_restart_timer(ha, WATCH_INTERVAL);
2520 }
2521
2522 /* XXX(hch): crude hack to emulate a down_timeout() */
2523 int
2524 qla2x00_down_timeout(struct semaphore *sema, unsigned long timeout)
2525 {
2526 const unsigned int step = 100; /* msecs */
2527 unsigned int iterations = jiffies_to_msecs(timeout)/100;
2528
2529 do {
2530 if (!down_trylock(sema))
2531 return 0;
2532 if (msleep_interruptible(step))
2533 break;
2534 } while (--iterations >= 0);
2535
2536 return -ETIMEDOUT;
2537 }
2538
2539 /* Firmware interface routines. */
2540
2541 #define FW_BLOBS 5
2542 #define FW_ISP21XX 0
2543 #define FW_ISP22XX 1
2544 #define FW_ISP2300 2
2545 #define FW_ISP2322 3
2546 #define FW_ISP24XX 4
2547
2548 static DECLARE_MUTEX(qla_fw_lock);
2549
2550 static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
2551 { .name = "ql2100_fw.bin", .segs = { 0x1000, 0 }, },
2552 { .name = "ql2200_fw.bin", .segs = { 0x1000, 0 }, },
2553 { .name = "ql2300_fw.bin", .segs = { 0x800, 0 }, },
2554 { .name = "ql2322_fw.bin", .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
2555 { .name = "ql2400_fw.bin", },
2556 };
2557
2558 struct fw_blob *
2559 qla2x00_request_firmware(scsi_qla_host_t *ha)
2560 {
2561 struct fw_blob *blob;
2562
2563 blob = NULL;
2564 if (IS_QLA2100(ha)) {
2565 blob = &qla_fw_blobs[FW_ISP21XX];
2566 } else if (IS_QLA2200(ha)) {
2567 blob = &qla_fw_blobs[FW_ISP22XX];
2568 } else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
2569 blob = &qla_fw_blobs[FW_ISP2300];
2570 } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
2571 blob = &qla_fw_blobs[FW_ISP2322];
2572 } else if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
2573 blob = &qla_fw_blobs[FW_ISP24XX];
2574 }
2575
2576 down(&qla_fw_lock);
2577 if (blob->fw)
2578 goto out;
2579
2580 if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
2581 DEBUG2(printk("scsi(%ld): Failed to load firmware image "
2582 "(%s).\n", ha->host_no, blob->name));
2583 blob->fw = NULL;
2584 blob = NULL;
2585 goto out;
2586 }
2587
2588 out:
2589 up(&qla_fw_lock);
2590 return blob;
2591 }
2592
2593 static void
2594 qla2x00_release_firmware(void)
2595 {
2596 int idx;
2597
2598 down(&qla_fw_lock);
2599 for (idx = 0; idx < FW_BLOBS; idx++)
2600 if (qla_fw_blobs[idx].fw)
2601 release_firmware(qla_fw_blobs[idx].fw);
2602 up(&qla_fw_lock);
2603 }
2604
2605 static struct pci_device_id qla2xxx_pci_tbl[] = {
2606 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100,
2607 PCI_ANY_ID, PCI_ANY_ID, },
2608 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200,
2609 PCI_ANY_ID, PCI_ANY_ID, },
2610 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300,
2611 PCI_ANY_ID, PCI_ANY_ID, },
2612 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312,
2613 PCI_ANY_ID, PCI_ANY_ID, },
2614 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322,
2615 PCI_ANY_ID, PCI_ANY_ID, },
2616 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312,
2617 PCI_ANY_ID, PCI_ANY_ID, },
2618 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322,
2619 PCI_ANY_ID, PCI_ANY_ID, },
2620 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422,
2621 PCI_ANY_ID, PCI_ANY_ID, },
2622 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432,
2623 PCI_ANY_ID, PCI_ANY_ID, },
2624 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422,
2625 PCI_ANY_ID, PCI_ANY_ID, },
2626 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432,
2627 PCI_ANY_ID, PCI_ANY_ID, },
2628 { 0 },
2629 };
2630 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
2631
2632 static int __devinit
2633 qla2xxx_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
2634 {
2635 return qla2x00_probe_one(pdev);
2636 }
2637
2638 static void __devexit
2639 qla2xxx_remove_one(struct pci_dev *pdev)
2640 {
2641 qla2x00_remove_one(pdev);
2642 }
2643
2644 static struct pci_driver qla2xxx_pci_driver = {
2645 .name = "qla2xxx",
2646 .driver = {
2647 .owner = THIS_MODULE,
2648 },
2649 .id_table = qla2xxx_pci_tbl,
2650 .probe = qla2xxx_probe_one,
2651 .remove = __devexit_p(qla2xxx_remove_one),
2652 };
2653
2654 static inline int
2655 qla2x00_pci_module_init(void)
2656 {
2657 return pci_module_init(&qla2xxx_pci_driver);
2658 }
2659
2660 static inline void
2661 qla2x00_pci_module_exit(void)
2662 {
2663 pci_unregister_driver(&qla2xxx_pci_driver);
2664 }
2665
2666 /**
2667 * qla2x00_module_init - Module initialization.
2668 **/
2669 static int __init
2670 qla2x00_module_init(void)
2671 {
2672 int ret = 0;
2673
2674 /* Allocate cache for SRBs. */
2675 srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
2676 SLAB_HWCACHE_ALIGN, NULL, NULL);
2677 if (srb_cachep == NULL) {
2678 printk(KERN_ERR
2679 "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
2680 return -ENOMEM;
2681 }
2682
2683 /* Derive version string. */
2684 strcpy(qla2x00_version_str, QLA2XXX_VERSION);
2685 #if DEBUG_QLA2100
2686 strcat(qla2x00_version_str, "-debug");
2687 #endif
2688 qla2xxx_transport_template =
2689 fc_attach_transport(&qla2xxx_transport_functions);
2690 if (!qla2xxx_transport_template)
2691 return -ENODEV;
2692
2693 printk(KERN_INFO "QLogic Fibre Channel HBA Driver\n");
2694 ret = qla2x00_pci_module_init();
2695 if (ret) {
2696 kmem_cache_destroy(srb_cachep);
2697 fc_release_transport(qla2xxx_transport_template);
2698 }
2699 return ret;
2700 }
2701
2702 /**
2703 * qla2x00_module_exit - Module cleanup.
2704 **/
2705 static void __exit
2706 qla2x00_module_exit(void)
2707 {
2708 qla2x00_pci_module_exit();
2709 qla2x00_release_firmware();
2710 kmem_cache_destroy(srb_cachep);
2711 fc_release_transport(qla2xxx_transport_template);
2712 }
2713
2714 module_init(qla2x00_module_init);
2715 module_exit(qla2x00_module_exit);
2716
2717 MODULE_AUTHOR("QLogic Corporation");
2718 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
2719 MODULE_LICENSE("GPL");
2720 MODULE_VERSION(QLA2XXX_VERSION);
Stable & featurefull patchset based on Linus's git branch