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[PATCH] w1: Added default generic read/write operations.
[linux-2.6/verdex.git] / drivers / scsi / qla2xxx / qla_os.c
blobccaad0b08d35a4108e58daed4767ad0f0a2c2abb
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_DRIVER_NAME,
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_DRIVER_NAME,
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 * Only return FAILED if command not returned by firmware.
593 **************************************************************************/
594 int
595 qla2xxx_eh_abort(struct scsi_cmnd *cmd)
596 {
597 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
598 srb_t *sp;
599 int ret, i;
600 unsigned int id, lun;
601 unsigned long serial;
602 unsigned long flags;
603 int wait = 0;
604
605 if (!CMD_SP(cmd))
606 return SUCCESS;
607
608 ret = SUCCESS;
609
610 id = cmd->device->id;
611 lun = cmd->device->lun;
612 serial = cmd->serial_number;
613
614 /* Check active list for command command. */
615 spin_lock_irqsave(&ha->hardware_lock, flags);
616 for (i = 1; i < MAX_OUTSTANDING_COMMANDS; i++) {
617 sp = ha->outstanding_cmds[i];
618
619 if (sp == NULL)
620 continue;
621
622 if (sp->cmd != cmd)
623 continue;
624
625 DEBUG2(printk("%s(%ld): aborting sp %p from RISC. pid=%ld.\n",
626 __func__, ha->host_no, sp, serial));
627 DEBUG3(qla2x00_print_scsi_cmd(cmd);)
628
629 spin_unlock_irqrestore(&ha->hardware_lock, flags);
630 if (ha->isp_ops.abort_command(ha, sp)) {
631 DEBUG2(printk("%s(%ld): abort_command "
632 "mbx failed.\n", __func__, ha->host_no));
633 } else {
634 DEBUG3(printk("%s(%ld): abort_command "
635 "mbx success.\n", __func__, ha->host_no));
636 wait = 1;
637 }
638 spin_lock_irqsave(&ha->hardware_lock, flags);
639
640 break;
641 }
642 spin_unlock_irqrestore(&ha->hardware_lock, flags);
643
644 /* Wait for the command to be returned. */
645 if (wait) {
646 if (qla2x00_eh_wait_on_command(ha, cmd) != QLA_SUCCESS) {
647 qla_printk(KERN_ERR, ha,
648 "scsi(%ld:%d:%d): Abort handler timed out -- %lx "
649 "%x.\n", ha->host_no, id, lun, serial, ret);
650 ret = FAILED;
651 }
652 }
653
654 qla_printk(KERN_INFO, ha,
655 "scsi(%ld:%d:%d): Abort command issued -- %d %lx %x.\n",
656 ha->host_no, id, lun, wait, serial, ret);
657
658 return ret;
659 }
660
661 /**************************************************************************
662 * qla2x00_eh_wait_for_pending_target_commands
663 *
664 * Description:
665 * Waits for all the commands to come back from the specified target.
666 *
667 * Input:
668 * ha - pointer to scsi_qla_host structure.
669 * t - target
670 * Returns:
671 * Either SUCCESS or FAILED.
672 *
673 * Note:
674 **************************************************************************/
675 static int
676 qla2x00_eh_wait_for_pending_target_commands(scsi_qla_host_t *ha, unsigned int t)
677 {
678 int cnt;
679 int status;
680 srb_t *sp;
681 struct scsi_cmnd *cmd;
682 unsigned long flags;
683
684 status = 0;
685
686 /*
687 * Waiting for all commands for the designated target in the active
688 * array
689 */
690 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
691 spin_lock_irqsave(&ha->hardware_lock, flags);
692 sp = ha->outstanding_cmds[cnt];
693 if (sp) {
694 cmd = sp->cmd;
695 spin_unlock_irqrestore(&ha->hardware_lock, flags);
696 if (cmd->device->id == t) {
697 if (!qla2x00_eh_wait_on_command(ha, cmd)) {
698 status = 1;
699 break;
700 }
701 }
702 } else {
703 spin_unlock_irqrestore(&ha->hardware_lock, flags);
704 }
705 }
706 return (status);
707 }
708
709
710 /**************************************************************************
711 * qla2xxx_eh_device_reset
712 *
713 * Description:
714 * The device reset function will reset the target and abort any
715 * executing commands.
716 *
717 * NOTE: The use of SP is undefined within this context. Do *NOT*
718 * attempt to use this value, even if you determine it is
719 * non-null.
720 *
721 * Input:
722 * cmd = Linux SCSI command packet of the command that cause the
723 * bus device reset.
724 *
725 * Returns:
726 * SUCCESS/FAILURE (defined as macro in scsi.h).
727 *
728 **************************************************************************/
729 int
730 qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
731 {
732 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
733 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
734 srb_t *sp;
735 int ret;
736 unsigned int id, lun;
737 unsigned long serial;
738
739 ret = FAILED;
740
741 id = cmd->device->id;
742 lun = cmd->device->lun;
743 serial = cmd->serial_number;
744
745 sp = (srb_t *) CMD_SP(cmd);
746 if (!sp || !fcport)
747 return ret;
748
749 qla_printk(KERN_INFO, ha,
750 "scsi(%ld:%d:%d): DEVICE RESET ISSUED.\n", ha->host_no, id, lun);
751
752 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
753 goto eh_dev_reset_done;
754
755 if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
756 if (qla2x00_device_reset(ha, fcport) == 0)
757 ret = SUCCESS;
758
759 #if defined(LOGOUT_AFTER_DEVICE_RESET)
760 if (ret == SUCCESS) {
761 if (fcport->flags & FC_FABRIC_DEVICE) {
762 ha->isp_ops.fabric_logout(ha, fcport->loop_id);
763 qla2x00_mark_device_lost(ha, fcport, 0, 0);
764 }
765 }
766 #endif
767 } else {
768 DEBUG2(printk(KERN_INFO
769 "%s failed: loop not ready\n",__func__);)
770 }
771
772 if (ret == FAILED) {
773 DEBUG3(printk("%s(%ld): device reset failed\n",
774 __func__, ha->host_no));
775 qla_printk(KERN_INFO, ha, "%s: device reset failed\n",
776 __func__);
777
778 goto eh_dev_reset_done;
779 }
780
781 /* Flush outstanding commands. */
782 if (qla2x00_eh_wait_for_pending_target_commands(ha, id))
783 ret = FAILED;
784 if (ret == FAILED) {
785 DEBUG3(printk("%s(%ld): failed while waiting for commands\n",
786 __func__, ha->host_no));
787 qla_printk(KERN_INFO, ha,
788 "%s: failed while waiting for commands\n", __func__);
789 } else
790 qla_printk(KERN_INFO, ha,
791 "scsi(%ld:%d:%d): DEVICE RESET SUCCEEDED.\n", ha->host_no,
792 id, lun);
793 eh_dev_reset_done:
794 return ret;
795 }
796
797 /**************************************************************************
798 * qla2x00_eh_wait_for_pending_commands
799 *
800 * Description:
801 * Waits for all the commands to come back from the specified host.
802 *
803 * Input:
804 * ha - pointer to scsi_qla_host structure.
805 *
806 * Returns:
807 * 1 : SUCCESS
808 * 0 : FAILED
809 *
810 * Note:
811 **************************************************************************/
812 static int
813 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *ha)
814 {
815 int cnt;
816 int status;
817 srb_t *sp;
818 struct scsi_cmnd *cmd;
819 unsigned long flags;
820
821 status = 1;
822
823 /*
824 * Waiting for all commands for the designated target in the active
825 * array
826 */
827 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
828 spin_lock_irqsave(&ha->hardware_lock, flags);
829 sp = ha->outstanding_cmds[cnt];
830 if (sp) {
831 cmd = sp->cmd;
832 spin_unlock_irqrestore(&ha->hardware_lock, flags);
833 status = qla2x00_eh_wait_on_command(ha, cmd);
834 if (status == 0)
835 break;
836 }
837 else {
838 spin_unlock_irqrestore(&ha->hardware_lock, flags);
839 }
840 }
841 return (status);
842 }
843
844
845 /**************************************************************************
846 * qla2xxx_eh_bus_reset
847 *
848 * Description:
849 * The bus reset function will reset the bus and abort any executing
850 * commands.
851 *
852 * Input:
853 * cmd = Linux SCSI command packet of the command that cause the
854 * bus reset.
855 *
856 * Returns:
857 * SUCCESS/FAILURE (defined as macro in scsi.h).
858 *
859 **************************************************************************/
860 int
861 qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
862 {
863 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
864 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
865 srb_t *sp;
866 int ret;
867 unsigned int id, lun;
868 unsigned long serial;
869
870 ret = FAILED;
871
872 id = cmd->device->id;
873 lun = cmd->device->lun;
874 serial = cmd->serial_number;
875
876 sp = (srb_t *) CMD_SP(cmd);
877 if (!sp || !fcport)
878 return ret;
879
880 qla_printk(KERN_INFO, ha,
881 "scsi(%ld:%d:%d): LOOP RESET ISSUED.\n", ha->host_no, id, lun);
882
883 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS) {
884 DEBUG2(printk("%s failed:board disabled\n",__func__));
885 goto eh_bus_reset_done;
886 }
887
888 if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
889 if (qla2x00_loop_reset(ha) == QLA_SUCCESS)
890 ret = SUCCESS;
891 }
892 if (ret == FAILED)
893 goto eh_bus_reset_done;
894
895 /* Flush outstanding commands. */
896 if (!qla2x00_eh_wait_for_pending_commands(ha))
897 ret = FAILED;
898
899 eh_bus_reset_done:
900 qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
901 (ret == FAILED) ? "failed" : "succeded");
902
903 return ret;
904 }
905
906 /**************************************************************************
907 * qla2xxx_eh_host_reset
908 *
909 * Description:
910 * The reset function will reset the Adapter.
911 *
912 * Input:
913 * cmd = Linux SCSI command packet of the command that cause the
914 * adapter reset.
915 *
916 * Returns:
917 * Either SUCCESS or FAILED.
918 *
919 * Note:
920 **************************************************************************/
921 int
922 qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
923 {
924 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
925 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
926 srb_t *sp;
927 int ret;
928 unsigned int id, lun;
929 unsigned long serial;
930
931 ret = FAILED;
932
933 id = cmd->device->id;
934 lun = cmd->device->lun;
935 serial = cmd->serial_number;
936
937 sp = (srb_t *) CMD_SP(cmd);
938 if (!sp || !fcport)
939 return ret;
940
941 qla_printk(KERN_INFO, ha,
942 "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", ha->host_no, id, lun);
943
944 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
945 goto eh_host_reset_lock;
946
947 /*
948 * Fixme-may be dpc thread is active and processing
949 * loop_resync,so wait a while for it to
950 * be completed and then issue big hammer.Otherwise
951 * it may cause I/O failure as big hammer marks the
952 * devices as lost kicking of the port_down_timer
953 * while dpc is stuck for the mailbox to complete.
954 */
955 qla2x00_wait_for_loop_ready(ha);
956 set_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
957 if (qla2x00_abort_isp(ha)) {
958 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
959 /* failed. schedule dpc to try */
960 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
961
962 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
963 goto eh_host_reset_lock;
964 }
965 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
966
967 /* Waiting for our command in done_queue to be returned to OS.*/
968 if (qla2x00_eh_wait_for_pending_commands(ha))
969 ret = SUCCESS;
970
971 eh_host_reset_lock:
972 qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
973 (ret == FAILED) ? "failed" : "succeded");
974
975 return ret;
976 }
977
978 /*
979 * qla2x00_loop_reset
980 * Issue loop reset.
981 *
982 * Input:
983 * ha = adapter block pointer.
984 *
985 * Returns:
986 * 0 = success
987 */
988 static int
989 qla2x00_loop_reset(scsi_qla_host_t *ha)
990 {
991 int status = QLA_SUCCESS;
992 struct fc_port *fcport;
993
994 if (ha->flags.enable_lip_reset) {
995 status = qla2x00_lip_reset(ha);
996 }
997
998 if (status == QLA_SUCCESS && ha->flags.enable_target_reset) {
999 list_for_each_entry(fcport, &ha->fcports, list) {
1000 if (fcport->port_type != FCT_TARGET)
1001 continue;
1002
1003 status = qla2x00_device_reset(ha, fcport);
1004 if (status != QLA_SUCCESS)
1005 break;
1006 }
1007 }
1008
1009 if (status == QLA_SUCCESS &&
1010 ((!ha->flags.enable_target_reset &&
1011 !ha->flags.enable_lip_reset) ||
1012 ha->flags.enable_lip_full_login)) {
1013
1014 status = qla2x00_full_login_lip(ha);
1015 }
1016
1017 /* Issue marker command only when we are going to start the I/O */
1018 ha->marker_needed = 1;
1019
1020 if (status) {
1021 /* Empty */
1022 DEBUG2_3(printk("%s(%ld): **** FAILED ****\n",
1023 __func__,
1024 ha->host_no);)
1025 } else {
1026 /* Empty */
1027 DEBUG3(printk("%s(%ld): exiting normally.\n",
1028 __func__,
1029 ha->host_no);)
1030 }
1031
1032 return(status);
1033 }
1034
1035 /*
1036 * qla2x00_device_reset
1037 * Issue bus device reset message to the target.
1038 *
1039 * Input:
1040 * ha = adapter block pointer.
1041 * t = SCSI ID.
1042 * TARGET_QUEUE_LOCK must be released.
1043 * ADAPTER_STATE_LOCK must be released.
1044 *
1045 * Context:
1046 * Kernel context.
1047 */
1048 static int
1049 qla2x00_device_reset(scsi_qla_host_t *ha, fc_port_t *reset_fcport)
1050 {
1051 /* Abort Target command will clear Reservation */
1052 return ha->isp_ops.abort_target(reset_fcport);
1053 }
1054
1055 static int
1056 qla2xxx_slave_alloc(struct scsi_device *sdev)
1057 {
1058 struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1059
1060 if (!rport || fc_remote_port_chkready(rport))
1061 return -ENXIO;
1062
1063 sdev->hostdata = *(fc_port_t **)rport->dd_data;
1064
1065 return 0;
1066 }
1067
1068 static int
1069 qla2xxx_slave_configure(struct scsi_device *sdev)
1070 {
1071 scsi_qla_host_t *ha = to_qla_host(sdev->host);
1072 struct fc_rport *rport = starget_to_rport(sdev->sdev_target);
1073
1074 if (sdev->tagged_supported)
1075 scsi_activate_tcq(sdev, 32);
1076 else
1077 scsi_deactivate_tcq(sdev, 32);
1078
1079 rport->dev_loss_tmo = ha->port_down_retry_count + 5;
1080
1081 return 0;
1082 }
1083
1084 static void
1085 qla2xxx_slave_destroy(struct scsi_device *sdev)
1086 {
1087 sdev->hostdata = NULL;
1088 }
1089
1090 static int
1091 qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth)
1092 {
1093 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1094 return sdev->queue_depth;
1095 }
1096
1097 static int
1098 qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1099 {
1100 if (sdev->tagged_supported) {
1101 scsi_set_tag_type(sdev, tag_type);
1102 if (tag_type)
1103 scsi_activate_tcq(sdev, sdev->queue_depth);
1104 else
1105 scsi_deactivate_tcq(sdev, sdev->queue_depth);
1106 } else
1107 tag_type = 0;
1108
1109 return tag_type;
1110 }
1111
1112 /**
1113 * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1114 * @ha: HA context
1115 *
1116 * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1117 * supported addressing method.
1118 */
1119 static void
1120 qla2x00_config_dma_addressing(scsi_qla_host_t *ha)
1121 {
1122 /* Assume a 32bit DMA mask. */
1123 ha->flags.enable_64bit_addressing = 0;
1124
1125 if (!dma_set_mask(&ha->pdev->dev, DMA_64BIT_MASK)) {
1126 /* Any upper-dword bits set? */
1127 if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1128 !pci_set_consistent_dma_mask(ha->pdev, DMA_64BIT_MASK)) {
1129 /* Ok, a 64bit DMA mask is applicable. */
1130 ha->flags.enable_64bit_addressing = 1;
1131 ha->isp_ops.calc_req_entries = qla2x00_calc_iocbs_64;
1132 ha->isp_ops.build_iocbs = qla2x00_build_scsi_iocbs_64;
1133 return;
1134 }
1135 }
1136
1137 dma_set_mask(&ha->pdev->dev, DMA_32BIT_MASK);
1138 pci_set_consistent_dma_mask(ha->pdev, DMA_32BIT_MASK);
1139 }
1140
1141 static inline void
1142 qla2x00_set_isp_flags(scsi_qla_host_t *ha)
1143 {
1144 ha->device_type = DT_EXTENDED_IDS;
1145 switch (ha->pdev->device) {
1146 case PCI_DEVICE_ID_QLOGIC_ISP2100:
1147 ha->device_type |= DT_ISP2100;
1148 ha->device_type &= ~DT_EXTENDED_IDS;
1149 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1150 break;
1151 case PCI_DEVICE_ID_QLOGIC_ISP2200:
1152 ha->device_type |= DT_ISP2200;
1153 ha->device_type &= ~DT_EXTENDED_IDS;
1154 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1155 break;
1156 case PCI_DEVICE_ID_QLOGIC_ISP2300:
1157 ha->device_type |= DT_ISP2300;
1158 ha->device_type |= DT_ZIO_SUPPORTED;
1159 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1160 break;
1161 case PCI_DEVICE_ID_QLOGIC_ISP2312:
1162 ha->device_type |= DT_ISP2312;
1163 ha->device_type |= DT_ZIO_SUPPORTED;
1164 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1165 break;
1166 case PCI_DEVICE_ID_QLOGIC_ISP2322:
1167 ha->device_type |= DT_ISP2322;
1168 ha->device_type |= DT_ZIO_SUPPORTED;
1169 if (ha->pdev->subsystem_vendor == 0x1028 &&
1170 ha->pdev->subsystem_device == 0x0170)
1171 ha->device_type |= DT_OEM_001;
1172 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1173 break;
1174 case PCI_DEVICE_ID_QLOGIC_ISP6312:
1175 ha->device_type |= DT_ISP6312;
1176 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1177 break;
1178 case PCI_DEVICE_ID_QLOGIC_ISP6322:
1179 ha->device_type |= DT_ISP6322;
1180 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1181 break;
1182 case PCI_DEVICE_ID_QLOGIC_ISP2422:
1183 ha->device_type |= DT_ISP2422;
1184 ha->device_type |= DT_ZIO_SUPPORTED;
1185 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1186 break;
1187 case PCI_DEVICE_ID_QLOGIC_ISP2432:
1188 ha->device_type |= DT_ISP2432;
1189 ha->device_type |= DT_ZIO_SUPPORTED;
1190 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1191 break;
1192 case PCI_DEVICE_ID_QLOGIC_ISP5422:
1193 ha->device_type |= DT_ISP5422;
1194 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1195 break;
1196 case PCI_DEVICE_ID_QLOGIC_ISP5432:
1197 ha->device_type |= DT_ISP5432;
1198 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1199 break;
1200 }
1201 }
1202
1203 static int
1204 qla2x00_iospace_config(scsi_qla_host_t *ha)
1205 {
1206 unsigned long pio, pio_len, pio_flags;
1207 unsigned long mmio, mmio_len, mmio_flags;
1208
1209 /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1210 pio = pci_resource_start(ha->pdev, 0);
1211 pio_len = pci_resource_len(ha->pdev, 0);
1212 pio_flags = pci_resource_flags(ha->pdev, 0);
1213 if (pio_flags & IORESOURCE_IO) {
1214 if (pio_len < MIN_IOBASE_LEN) {
1215 qla_printk(KERN_WARNING, ha,
1216 "Invalid PCI I/O region size (%s)...\n",
1217 pci_name(ha->pdev));
1218 pio = 0;
1219 }
1220 } else {
1221 qla_printk(KERN_WARNING, ha,
1222 "region #0 not a PIO resource (%s)...\n",
1223 pci_name(ha->pdev));
1224 pio = 0;
1225 }
1226
1227 /* Use MMIO operations for all accesses. */
1228 mmio = pci_resource_start(ha->pdev, 1);
1229 mmio_len = pci_resource_len(ha->pdev, 1);
1230 mmio_flags = pci_resource_flags(ha->pdev, 1);
1231
1232 if (!(mmio_flags & IORESOURCE_MEM)) {
1233 qla_printk(KERN_ERR, ha,
1234 "region #0 not an MMIO resource (%s), aborting\n",
1235 pci_name(ha->pdev));
1236 goto iospace_error_exit;
1237 }
1238 if (mmio_len < MIN_IOBASE_LEN) {
1239 qla_printk(KERN_ERR, ha,
1240 "Invalid PCI mem region size (%s), aborting\n",
1241 pci_name(ha->pdev));
1242 goto iospace_error_exit;
1243 }
1244
1245 if (pci_request_regions(ha->pdev, QLA2XXX_DRIVER_NAME)) {
1246 qla_printk(KERN_WARNING, ha,
1247 "Failed to reserve PIO/MMIO regions (%s)\n",
1248 pci_name(ha->pdev));
1249
1250 goto iospace_error_exit;
1251 }
1252
1253 ha->pio_address = pio;
1254 ha->pio_length = pio_len;
1255 ha->iobase = ioremap(mmio, MIN_IOBASE_LEN);
1256 if (!ha->iobase) {
1257 qla_printk(KERN_ERR, ha,
1258 "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
1259
1260 goto iospace_error_exit;
1261 }
1262
1263 return (0);
1264
1265 iospace_error_exit:
1266 return (-ENOMEM);
1267 }
1268
1269 static void
1270 qla2x00_enable_intrs(scsi_qla_host_t *ha)
1271 {
1272 unsigned long flags = 0;
1273 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1274
1275 spin_lock_irqsave(&ha->hardware_lock, flags);
1276 ha->interrupts_on = 1;
1277 /* enable risc and host interrupts */
1278 WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1279 RD_REG_WORD(&reg->ictrl);
1280 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1281
1282 }
1283
1284 static void
1285 qla2x00_disable_intrs(scsi_qla_host_t *ha)
1286 {
1287 unsigned long flags = 0;
1288 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1289
1290 spin_lock_irqsave(&ha->hardware_lock, flags);
1291 ha->interrupts_on = 0;
1292 /* disable risc and host interrupts */
1293 WRT_REG_WORD(&reg->ictrl, 0);
1294 RD_REG_WORD(&reg->ictrl);
1295 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1296 }
1297
1298 static void
1299 qla24xx_enable_intrs(scsi_qla_host_t *ha)
1300 {
1301 unsigned long flags = 0;
1302 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1303
1304 spin_lock_irqsave(&ha->hardware_lock, flags);
1305 ha->interrupts_on = 1;
1306 WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1307 RD_REG_DWORD(&reg->ictrl);
1308 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1309 }
1310
1311 static void
1312 qla24xx_disable_intrs(scsi_qla_host_t *ha)
1313 {
1314 unsigned long flags = 0;
1315 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1316
1317 spin_lock_irqsave(&ha->hardware_lock, flags);
1318 ha->interrupts_on = 0;
1319 WRT_REG_DWORD(&reg->ictrl, 0);
1320 RD_REG_DWORD(&reg->ictrl);
1321 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1322 }
1323
1324 /*
1325 * PCI driver interface
1326 */
1327 static int qla2x00_probe_one(struct pci_dev *pdev)
1328 {
1329 int ret = -ENODEV;
1330 device_reg_t __iomem *reg;
1331 struct Scsi_Host *host;
1332 scsi_qla_host_t *ha;
1333 unsigned long flags = 0;
1334 unsigned long wait_switch = 0;
1335 char pci_info[20];
1336 char fw_str[30];
1337 fc_port_t *fcport;
1338 struct scsi_host_template *sht;
1339
1340 if (pci_enable_device(pdev))
1341 goto probe_out;
1342
1343 sht = &qla2x00_driver_template;
1344 if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
1345 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432)
1346 sht = &qla24xx_driver_template;
1347 host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
1348 if (host == NULL) {
1349 printk(KERN_WARNING
1350 "qla2xxx: Couldn't allocate host from scsi layer!\n");
1351 goto probe_disable_device;
1352 }
1353
1354 /* Clear our data area */
1355 ha = (scsi_qla_host_t *)host->hostdata;
1356 memset(ha, 0, sizeof(scsi_qla_host_t));
1357
1358 ha->pdev = pdev;
1359 ha->host = host;
1360 ha->host_no = host->host_no;
1361 sprintf(ha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, ha->host_no);
1362
1363 /* Set ISP-type information. */
1364 qla2x00_set_isp_flags(ha);
1365
1366 /* Configure PCI I/O space */
1367 ret = qla2x00_iospace_config(ha);
1368 if (ret)
1369 goto probe_failed;
1370
1371 qla_printk(KERN_INFO, ha,
1372 "Found an ISP%04X, irq %d, iobase 0x%p\n", pdev->device, pdev->irq,
1373 ha->iobase);
1374
1375 spin_lock_init(&ha->hardware_lock);
1376
1377 ha->prev_topology = 0;
1378 ha->init_cb_size = sizeof(init_cb_t);
1379 ha->mgmt_svr_loop_id = MANAGEMENT_SERVER;
1380 ha->link_data_rate = LDR_UNKNOWN;
1381 ha->optrom_size = OPTROM_SIZE_2300;
1382
1383 /* Assign ISP specific operations. */
1384 ha->isp_ops.pci_config = qla2100_pci_config;
1385 ha->isp_ops.reset_chip = qla2x00_reset_chip;
1386 ha->isp_ops.chip_diag = qla2x00_chip_diag;
1387 ha->isp_ops.config_rings = qla2x00_config_rings;
1388 ha->isp_ops.reset_adapter = qla2x00_reset_adapter;
1389 ha->isp_ops.nvram_config = qla2x00_nvram_config;
1390 ha->isp_ops.update_fw_options = qla2x00_update_fw_options;
1391 ha->isp_ops.load_risc = qla2x00_load_risc;
1392 ha->isp_ops.pci_info_str = qla2x00_pci_info_str;
1393 ha->isp_ops.fw_version_str = qla2x00_fw_version_str;
1394 ha->isp_ops.intr_handler = qla2100_intr_handler;
1395 ha->isp_ops.enable_intrs = qla2x00_enable_intrs;
1396 ha->isp_ops.disable_intrs = qla2x00_disable_intrs;
1397 ha->isp_ops.abort_command = qla2x00_abort_command;
1398 ha->isp_ops.abort_target = qla2x00_abort_target;
1399 ha->isp_ops.fabric_login = qla2x00_login_fabric;
1400 ha->isp_ops.fabric_logout = qla2x00_fabric_logout;
1401 ha->isp_ops.calc_req_entries = qla2x00_calc_iocbs_32;
1402 ha->isp_ops.build_iocbs = qla2x00_build_scsi_iocbs_32;
1403 ha->isp_ops.prep_ms_iocb = qla2x00_prep_ms_iocb;
1404 ha->isp_ops.prep_ms_fdmi_iocb = qla2x00_prep_ms_fdmi_iocb;
1405 ha->isp_ops.read_nvram = qla2x00_read_nvram_data;
1406 ha->isp_ops.write_nvram = qla2x00_write_nvram_data;
1407 ha->isp_ops.fw_dump = qla2100_fw_dump;
1408 ha->isp_ops.ascii_fw_dump = qla2100_ascii_fw_dump;
1409 ha->isp_ops.read_optrom = qla2x00_read_optrom_data;
1410 ha->isp_ops.write_optrom = qla2x00_write_optrom_data;
1411 if (IS_QLA2100(ha)) {
1412 host->max_id = MAX_TARGETS_2100;
1413 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
1414 ha->request_q_length = REQUEST_ENTRY_CNT_2100;
1415 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1416 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1417 host->sg_tablesize = 32;
1418 ha->gid_list_info_size = 4;
1419 } else if (IS_QLA2200(ha)) {
1420 host->max_id = MAX_TARGETS_2200;
1421 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1422 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1423 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1424 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1425 ha->gid_list_info_size = 4;
1426 } else if (IS_QLA23XX(ha)) {
1427 host->max_id = MAX_TARGETS_2200;
1428 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1429 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1430 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1431 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1432 ha->isp_ops.pci_config = qla2300_pci_config;
1433 ha->isp_ops.intr_handler = qla2300_intr_handler;
1434 ha->isp_ops.fw_dump = qla2300_fw_dump;
1435 ha->isp_ops.ascii_fw_dump = qla2300_ascii_fw_dump;
1436 ha->isp_ops.beacon_on = qla2x00_beacon_on;
1437 ha->isp_ops.beacon_off = qla2x00_beacon_off;
1438 ha->isp_ops.beacon_blink = qla2x00_beacon_blink;
1439 ha->gid_list_info_size = 6;
1440 if (IS_QLA2322(ha) || IS_QLA6322(ha))
1441 ha->optrom_size = OPTROM_SIZE_2322;
1442 } else if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
1443 host->max_id = MAX_TARGETS_2200;
1444 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1445 ha->request_q_length = REQUEST_ENTRY_CNT_24XX;
1446 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1447 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1448 ha->init_cb_size = sizeof(struct init_cb_24xx);
1449 ha->mgmt_svr_loop_id = 10;
1450 ha->isp_ops.pci_config = qla24xx_pci_config;
1451 ha->isp_ops.reset_chip = qla24xx_reset_chip;
1452 ha->isp_ops.chip_diag = qla24xx_chip_diag;
1453 ha->isp_ops.config_rings = qla24xx_config_rings;
1454 ha->isp_ops.reset_adapter = qla24xx_reset_adapter;
1455 ha->isp_ops.nvram_config = qla24xx_nvram_config;
1456 ha->isp_ops.update_fw_options = qla24xx_update_fw_options;
1457 ha->isp_ops.load_risc = qla24xx_load_risc;
1458 ha->isp_ops.pci_info_str = qla24xx_pci_info_str;
1459 ha->isp_ops.fw_version_str = qla24xx_fw_version_str;
1460 ha->isp_ops.intr_handler = qla24xx_intr_handler;
1461 ha->isp_ops.enable_intrs = qla24xx_enable_intrs;
1462 ha->isp_ops.disable_intrs = qla24xx_disable_intrs;
1463 ha->isp_ops.abort_command = qla24xx_abort_command;
1464 ha->isp_ops.abort_target = qla24xx_abort_target;
1465 ha->isp_ops.fabric_login = qla24xx_login_fabric;
1466 ha->isp_ops.fabric_logout = qla24xx_fabric_logout;
1467 ha->isp_ops.prep_ms_iocb = qla24xx_prep_ms_iocb;
1468 ha->isp_ops.prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb;
1469 ha->isp_ops.read_nvram = qla24xx_read_nvram_data;
1470 ha->isp_ops.write_nvram = qla24xx_write_nvram_data;
1471 ha->isp_ops.fw_dump = qla24xx_fw_dump;
1472 ha->isp_ops.ascii_fw_dump = qla24xx_ascii_fw_dump;
1473 ha->isp_ops.read_optrom = qla24xx_read_optrom_data;
1474 ha->isp_ops.write_optrom = qla24xx_write_optrom_data;
1475 ha->isp_ops.beacon_on = qla24xx_beacon_on;
1476 ha->isp_ops.beacon_off = qla24xx_beacon_off;
1477 ha->isp_ops.beacon_blink = qla24xx_beacon_blink;
1478 ha->gid_list_info_size = 8;
1479 ha->optrom_size = OPTROM_SIZE_24XX;
1480 }
1481 host->can_queue = ha->request_q_length + 128;
1482
1483 /* load the F/W, read paramaters, and init the H/W */
1484 ha->instance = num_hosts;
1485
1486 init_MUTEX(&ha->mbx_cmd_sem);
1487 init_MUTEX_LOCKED(&ha->mbx_intr_sem);
1488
1489 INIT_LIST_HEAD(&ha->list);
1490 INIT_LIST_HEAD(&ha->fcports);
1491
1492 /*
1493 * These locks are used to prevent more than one CPU
1494 * from modifying the queue at the same time. The
1495 * higher level "host_lock" will reduce most
1496 * contention for these locks.
1497 */
1498 spin_lock_init(&ha->mbx_reg_lock);
1499
1500 qla2x00_config_dma_addressing(ha);
1501 if (qla2x00_mem_alloc(ha)) {
1502 qla_printk(KERN_WARNING, ha,
1503 "[ERROR] Failed to allocate memory for adapter\n");
1504
1505 ret = -ENOMEM;
1506 goto probe_failed;
1507 }
1508
1509 if (qla2x00_initialize_adapter(ha) &&
1510 !(ha->device_flags & DFLG_NO_CABLE)) {
1511
1512 qla_printk(KERN_WARNING, ha,
1513 "Failed to initialize adapter\n");
1514
1515 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
1516 "Adapter flags %x.\n",
1517 ha->host_no, ha->device_flags));
1518
1519 ret = -ENODEV;
1520 goto probe_failed;
1521 }
1522
1523 /*
1524 * Startup the kernel thread for this host adapter
1525 */
1526 ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
1527 "%s_dpc", ha->host_str);
1528 if (IS_ERR(ha->dpc_thread)) {
1529 qla_printk(KERN_WARNING, ha,
1530 "Unable to start DPC thread!\n");
1531 ret = PTR_ERR(ha->dpc_thread);
1532 goto probe_failed;
1533 }
1534
1535 host->this_id = 255;
1536 host->cmd_per_lun = 3;
1537 host->unique_id = ha->instance;
1538 host->max_cmd_len = MAX_CMDSZ;
1539 host->max_channel = MAX_BUSES - 1;
1540 host->max_lun = MAX_LUNS;
1541 host->transportt = qla2xxx_transport_template;
1542
1543 ret = request_irq(pdev->irq, ha->isp_ops.intr_handler,
1544 SA_INTERRUPT|SA_SHIRQ, QLA2XXX_DRIVER_NAME, ha);
1545 if (ret) {
1546 qla_printk(KERN_WARNING, ha,
1547 "Failed to reserve interrupt %d already in use.\n",
1548 pdev->irq);
1549 goto probe_failed;
1550 }
1551 host->irq = pdev->irq;
1552
1553 /* Initialized the timer */
1554 qla2x00_start_timer(ha, qla2x00_timer, WATCH_INTERVAL);
1555
1556 DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
1557 ha->host_no, ha));
1558
1559 ha->isp_ops.disable_intrs(ha);
1560
1561 spin_lock_irqsave(&ha->hardware_lock, flags);
1562 reg = ha->iobase;
1563 if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
1564 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_HOST_INT);
1565 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_RISC_INT);
1566 } else {
1567 WRT_REG_WORD(&reg->isp.semaphore, 0);
1568 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_RISC_INT);
1569 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_HOST_INT);
1570
1571 /* Enable proper parity */
1572 if (!IS_QLA2100(ha) && !IS_QLA2200(ha)) {
1573 if (IS_QLA2300(ha))
1574 /* SRAM parity */
1575 WRT_REG_WORD(&reg->isp.hccr,
1576 (HCCR_ENABLE_PARITY + 0x1));
1577 else
1578 /* SRAM, Instruction RAM and GP RAM parity */
1579 WRT_REG_WORD(&reg->isp.hccr,
1580 (HCCR_ENABLE_PARITY + 0x7));
1581 }
1582 }
1583 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1584
1585 ha->isp_ops.enable_intrs(ha);
1586
1587 /* v2.19.5b6 */
1588 /*
1589 * Wait around max loop_reset_delay secs for the devices to come
1590 * on-line. We don't want Linux scanning before we are ready.
1591 *
1592 */
1593 for (wait_switch = jiffies + (ha->loop_reset_delay * HZ);
1594 time_before(jiffies,wait_switch) &&
1595 !(ha->device_flags & (DFLG_NO_CABLE | DFLG_FABRIC_DEVICES))
1596 && (ha->device_flags & SWITCH_FOUND) ;) {
1597
1598 qla2x00_check_fabric_devices(ha);
1599
1600 msleep(10);
1601 }
1602
1603 pci_set_drvdata(pdev, ha);
1604 ha->flags.init_done = 1;
1605 num_hosts++;
1606
1607 ret = scsi_add_host(host, &pdev->dev);
1608 if (ret)
1609 goto probe_failed;
1610
1611 qla2x00_alloc_sysfs_attr(ha);
1612
1613 qla2x00_init_host_attr(ha);
1614
1615 qla_printk(KERN_INFO, ha, "\n"
1616 " QLogic Fibre Channel HBA Driver: %s\n"
1617 " QLogic %s - %s\n"
1618 " ISP%04X: %s @ %s hdma%c, host#=%ld, fw=%s\n",
1619 qla2x00_version_str, ha->model_number,
1620 ha->model_desc ? ha->model_desc: "", pdev->device,
1621 ha->isp_ops.pci_info_str(ha, pci_info), pci_name(pdev),
1622 ha->flags.enable_64bit_addressing ? '+': '-', ha->host_no,
1623 ha->isp_ops.fw_version_str(ha, fw_str));
1624
1625 /* Go with fc_rport registration. */
1626 list_for_each_entry(fcport, &ha->fcports, list)
1627 qla2x00_reg_remote_port(ha, fcport);
1628
1629 return 0;
1630
1631 probe_failed:
1632 qla2x00_free_device(ha);
1633
1634 scsi_host_put(host);
1635
1636 probe_disable_device:
1637 pci_disable_device(pdev);
1638
1639 probe_out:
1640 return ret;
1641 }
1642
1643 static void qla2x00_remove_one(struct pci_dev *pdev)
1644 {
1645 scsi_qla_host_t *ha;
1646
1647 ha = pci_get_drvdata(pdev);
1648
1649 qla2x00_free_sysfs_attr(ha);
1650
1651 fc_remove_host(ha->host);
1652
1653 scsi_remove_host(ha->host);
1654
1655 qla2x00_free_device(ha);
1656
1657 scsi_host_put(ha->host);
1658
1659 pci_set_drvdata(pdev, NULL);
1660 }
1661
1662 static void
1663 qla2x00_free_device(scsi_qla_host_t *ha)
1664 {
1665 /* Disable timer */
1666 if (ha->timer_active)
1667 qla2x00_stop_timer(ha);
1668
1669 /* Kill the kernel thread for this host */
1670 if (ha->dpc_thread) {
1671 struct task_struct *t = ha->dpc_thread;
1672
1673 /*
1674 * qla2xxx_wake_dpc checks for ->dpc_thread
1675 * so we need to zero it out.
1676 */
1677 ha->dpc_thread = NULL;
1678 kthread_stop(t);
1679 }
1680
1681 /* Stop currently executing firmware. */
1682 qla2x00_stop_firmware(ha);
1683
1684 /* turn-off interrupts on the card */
1685 if (ha->interrupts_on)
1686 ha->isp_ops.disable_intrs(ha);
1687
1688 qla2x00_mem_free(ha);
1689
1690 ha->flags.online = 0;
1691
1692 /* Detach interrupts */
1693 if (ha->host->irq)
1694 free_irq(ha->host->irq, ha);
1695
1696 /* release io space registers */
1697 if (ha->iobase)
1698 iounmap(ha->iobase);
1699 pci_release_regions(ha->pdev);
1700
1701 pci_disable_device(ha->pdev);
1702 }
1703
1704 static inline void
1705 qla2x00_schedule_rport_del(struct scsi_qla_host *ha, fc_port_t *fcport,
1706 int defer)
1707 {
1708 unsigned long flags;
1709 struct fc_rport *rport;
1710
1711 if (!fcport->rport)
1712 return;
1713
1714 rport = fcport->rport;
1715 if (defer) {
1716 spin_lock_irqsave(&fcport->rport_lock, flags);
1717 fcport->drport = rport;
1718 fcport->rport = NULL;
1719 *(fc_port_t **)rport->dd_data = NULL;
1720 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1721 set_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags);
1722 } else {
1723 spin_lock_irqsave(&fcport->rport_lock, flags);
1724 fcport->rport = NULL;
1725 *(fc_port_t **)rport->dd_data = NULL;
1726 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1727 fc_remote_port_delete(rport);
1728 }
1729 }
1730
1731 /*
1732 * qla2x00_mark_device_lost Updates fcport state when device goes offline.
1733 *
1734 * Input: ha = adapter block pointer. fcport = port structure pointer.
1735 *
1736 * Return: None.
1737 *
1738 * Context:
1739 */
1740 void qla2x00_mark_device_lost(scsi_qla_host_t *ha, fc_port_t *fcport,
1741 int do_login, int defer)
1742 {
1743 if (atomic_read(&fcport->state) == FCS_ONLINE)
1744 qla2x00_schedule_rport_del(ha, fcport, defer);
1745
1746 /*
1747 * We may need to retry the login, so don't change the state of the
1748 * port but do the retries.
1749 */
1750 if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
1751 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1752
1753 if (!do_login)
1754 return;
1755
1756 if (fcport->login_retry == 0) {
1757 fcport->login_retry = ha->login_retry_count;
1758 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
1759
1760 DEBUG(printk("scsi(%ld): Port login retry: "
1761 "%02x%02x%02x%02x%02x%02x%02x%02x, "
1762 "id = 0x%04x retry cnt=%d\n",
1763 ha->host_no,
1764 fcport->port_name[0],
1765 fcport->port_name[1],
1766 fcport->port_name[2],
1767 fcport->port_name[3],
1768 fcport->port_name[4],
1769 fcport->port_name[5],
1770 fcport->port_name[6],
1771 fcport->port_name[7],
1772 fcport->loop_id,
1773 fcport->login_retry));
1774 }
1775 }
1776
1777 /*
1778 * qla2x00_mark_all_devices_lost
1779 * Updates fcport state when device goes offline.
1780 *
1781 * Input:
1782 * ha = adapter block pointer.
1783 * fcport = port structure pointer.
1784 *
1785 * Return:
1786 * None.
1787 *
1788 * Context:
1789 */
1790 void
1791 qla2x00_mark_all_devices_lost(scsi_qla_host_t *ha, int defer)
1792 {
1793 fc_port_t *fcport;
1794
1795 list_for_each_entry(fcport, &ha->fcports, list) {
1796 if (fcport->port_type != FCT_TARGET)
1797 continue;
1798
1799 /*
1800 * No point in marking the device as lost, if the device is
1801 * already DEAD.
1802 */
1803 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
1804 continue;
1805 if (atomic_read(&fcport->state) == FCS_ONLINE)
1806 qla2x00_schedule_rport_del(ha, fcport, defer);
1807 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1808 }
1809
1810 if (defer)
1811 qla2xxx_wake_dpc(ha);
1812 }
1813
1814 /*
1815 * qla2x00_mem_alloc
1816 * Allocates adapter memory.
1817 *
1818 * Returns:
1819 * 0 = success.
1820 * 1 = failure.
1821 */
1822 static uint8_t
1823 qla2x00_mem_alloc(scsi_qla_host_t *ha)
1824 {
1825 char name[16];
1826 uint8_t status = 1;
1827 int retry= 10;
1828
1829 do {
1830 /*
1831 * This will loop only once if everything goes well, else some
1832 * number of retries will be performed to get around a kernel
1833 * bug where available mem is not allocated until after a
1834 * little delay and a retry.
1835 */
1836 ha->request_ring = dma_alloc_coherent(&ha->pdev->dev,
1837 (ha->request_q_length + 1) * sizeof(request_t),
1838 &ha->request_dma, GFP_KERNEL);
1839 if (ha->request_ring == NULL) {
1840 qla_printk(KERN_WARNING, ha,
1841 "Memory Allocation failed - request_ring\n");
1842
1843 qla2x00_mem_free(ha);
1844 msleep(100);
1845
1846 continue;
1847 }
1848
1849 ha->response_ring = dma_alloc_coherent(&ha->pdev->dev,
1850 (ha->response_q_length + 1) * sizeof(response_t),
1851 &ha->response_dma, GFP_KERNEL);
1852 if (ha->response_ring == NULL) {
1853 qla_printk(KERN_WARNING, ha,
1854 "Memory Allocation failed - response_ring\n");
1855
1856 qla2x00_mem_free(ha);
1857 msleep(100);
1858
1859 continue;
1860 }
1861
1862 ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
1863 &ha->gid_list_dma, GFP_KERNEL);
1864 if (ha->gid_list == NULL) {
1865 qla_printk(KERN_WARNING, ha,
1866 "Memory Allocation failed - gid_list\n");
1867
1868 qla2x00_mem_free(ha);
1869 msleep(100);
1870
1871 continue;
1872 }
1873
1874 snprintf(name, sizeof(name), "%s_%ld", QLA2XXX_DRIVER_NAME,
1875 ha->host_no);
1876 ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
1877 DMA_POOL_SIZE, 8, 0);
1878 if (ha->s_dma_pool == NULL) {
1879 qla_printk(KERN_WARNING, ha,
1880 "Memory Allocation failed - s_dma_pool\n");
1881
1882 qla2x00_mem_free(ha);
1883 msleep(100);
1884
1885 continue;
1886 }
1887
1888 /* get consistent memory allocated for init control block */
1889 ha->init_cb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
1890 &ha->init_cb_dma);
1891 if (ha->init_cb == NULL) {
1892 qla_printk(KERN_WARNING, ha,
1893 "Memory Allocation failed - init_cb\n");
1894
1895 qla2x00_mem_free(ha);
1896 msleep(100);
1897
1898 continue;
1899 }
1900 memset(ha->init_cb, 0, ha->init_cb_size);
1901
1902 /* Allocate ioctl related memory. */
1903 if (qla2x00_alloc_ioctl_mem(ha)) {
1904 qla_printk(KERN_WARNING, ha,
1905 "Memory Allocation failed - ioctl_mem\n");
1906
1907 qla2x00_mem_free(ha);
1908 msleep(100);
1909
1910 continue;
1911 }
1912
1913 if (qla2x00_allocate_sp_pool(ha)) {
1914 qla_printk(KERN_WARNING, ha,
1915 "Memory Allocation failed - "
1916 "qla2x00_allocate_sp_pool()\n");
1917
1918 qla2x00_mem_free(ha);
1919 msleep(100);
1920
1921 continue;
1922 }
1923
1924 /* Allocate memory for SNS commands */
1925 if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
1926 /* Get consistent memory allocated for SNS commands */
1927 ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
1928 sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma,
1929 GFP_KERNEL);
1930 if (ha->sns_cmd == NULL) {
1931 /* error */
1932 qla_printk(KERN_WARNING, ha,
1933 "Memory Allocation failed - sns_cmd\n");
1934
1935 qla2x00_mem_free(ha);
1936 msleep(100);
1937
1938 continue;
1939 }
1940 memset(ha->sns_cmd, 0, sizeof(struct sns_cmd_pkt));
1941 } else {
1942 /* Get consistent memory allocated for MS IOCB */
1943 ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
1944 &ha->ms_iocb_dma);
1945 if (ha->ms_iocb == NULL) {
1946 /* error */
1947 qla_printk(KERN_WARNING, ha,
1948 "Memory Allocation failed - ms_iocb\n");
1949
1950 qla2x00_mem_free(ha);
1951 msleep(100);
1952
1953 continue;
1954 }
1955 memset(ha->ms_iocb, 0, sizeof(ms_iocb_entry_t));
1956
1957 /*
1958 * Get consistent memory allocated for CT SNS
1959 * commands
1960 */
1961 ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
1962 sizeof(struct ct_sns_pkt), &ha->ct_sns_dma,
1963 GFP_KERNEL);
1964 if (ha->ct_sns == NULL) {
1965 /* error */
1966 qla_printk(KERN_WARNING, ha,
1967 "Memory Allocation failed - ct_sns\n");
1968
1969 qla2x00_mem_free(ha);
1970 msleep(100);
1971
1972 continue;
1973 }
1974 memset(ha->ct_sns, 0, sizeof(struct ct_sns_pkt));
1975 }
1976
1977 /* Done all allocations without any error. */
1978 status = 0;
1979
1980 } while (retry-- && status != 0);
1981
1982 if (status) {
1983 printk(KERN_WARNING
1984 "%s(): **** FAILED ****\n", __func__);
1985 }
1986
1987 return(status);
1988 }
1989
1990 /*
1991 * qla2x00_mem_free
1992 * Frees all adapter allocated memory.
1993 *
1994 * Input:
1995 * ha = adapter block pointer.
1996 */
1997 static void
1998 qla2x00_mem_free(scsi_qla_host_t *ha)
1999 {
2000 struct list_head *fcpl, *fcptemp;
2001 fc_port_t *fcport;
2002
2003 if (ha == NULL) {
2004 /* error */
2005 DEBUG2(printk("%s(): ERROR invalid ha pointer.\n", __func__));
2006 return;
2007 }
2008
2009 /* free ioctl memory */
2010 qla2x00_free_ioctl_mem(ha);
2011
2012 /* free sp pool */
2013 qla2x00_free_sp_pool(ha);
2014
2015 if (ha->sns_cmd)
2016 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
2017 ha->sns_cmd, ha->sns_cmd_dma);
2018
2019 if (ha->ct_sns)
2020 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2021 ha->ct_sns, ha->ct_sns_dma);
2022
2023 if (ha->ms_iocb)
2024 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2025
2026 if (ha->init_cb)
2027 dma_pool_free(ha->s_dma_pool, ha->init_cb, ha->init_cb_dma);
2028
2029 if (ha->s_dma_pool)
2030 dma_pool_destroy(ha->s_dma_pool);
2031
2032 if (ha->gid_list)
2033 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2034 ha->gid_list_dma);
2035
2036 if (ha->response_ring)
2037 dma_free_coherent(&ha->pdev->dev,
2038 (ha->response_q_length + 1) * sizeof(response_t),
2039 ha->response_ring, ha->response_dma);
2040
2041 if (ha->request_ring)
2042 dma_free_coherent(&ha->pdev->dev,
2043 (ha->request_q_length + 1) * sizeof(request_t),
2044 ha->request_ring, ha->request_dma);
2045
2046 ha->sns_cmd = NULL;
2047 ha->sns_cmd_dma = 0;
2048 ha->ct_sns = NULL;
2049 ha->ct_sns_dma = 0;
2050 ha->ms_iocb = NULL;
2051 ha->ms_iocb_dma = 0;
2052 ha->init_cb = NULL;
2053 ha->init_cb_dma = 0;
2054
2055 ha->s_dma_pool = NULL;
2056
2057 ha->gid_list = NULL;
2058 ha->gid_list_dma = 0;
2059
2060 ha->response_ring = NULL;
2061 ha->response_dma = 0;
2062 ha->request_ring = NULL;
2063 ha->request_dma = 0;
2064
2065 list_for_each_safe(fcpl, fcptemp, &ha->fcports) {
2066 fcport = list_entry(fcpl, fc_port_t, list);
2067
2068 /* fc ports */
2069 list_del_init(&fcport->list);
2070 kfree(fcport);
2071 }
2072 INIT_LIST_HEAD(&ha->fcports);
2073
2074 vfree(ha->fw_dump);
2075 vfree(ha->fw_dump_buffer);
2076
2077 ha->fw_dump = NULL;
2078 ha->fw_dumped = 0;
2079 ha->fw_dump_reading = 0;
2080 ha->fw_dump_buffer = NULL;
2081
2082 vfree(ha->optrom_buffer);
2083 }
2084
2085 /*
2086 * qla2x00_allocate_sp_pool
2087 * This routine is called during initialization to allocate
2088 * memory for local srb_t.
2089 *
2090 * Input:
2091 * ha = adapter block pointer.
2092 *
2093 * Context:
2094 * Kernel context.
2095 */
2096 static int
2097 qla2x00_allocate_sp_pool(scsi_qla_host_t *ha)
2098 {
2099 int rval;
2100
2101 rval = QLA_SUCCESS;
2102 ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
2103 if (ha->srb_mempool == NULL) {
2104 qla_printk(KERN_INFO, ha, "Unable to allocate SRB mempool.\n");
2105 rval = QLA_FUNCTION_FAILED;
2106 }
2107 return (rval);
2108 }
2109
2110 /*
2111 * This routine frees all adapter allocated memory.
2112 *
2113 */
2114 static void
2115 qla2x00_free_sp_pool( scsi_qla_host_t *ha)
2116 {
2117 if (ha->srb_mempool) {
2118 mempool_destroy(ha->srb_mempool);
2119 ha->srb_mempool = NULL;
2120 }
2121 }
2122
2123 /**************************************************************************
2124 * qla2x00_do_dpc
2125 * This kernel thread is a task that is schedule by the interrupt handler
2126 * to perform the background processing for interrupts.
2127 *
2128 * Notes:
2129 * This task always run in the context of a kernel thread. It
2130 * is kick-off by the driver's detect code and starts up
2131 * up one per adapter. It immediately goes to sleep and waits for
2132 * some fibre event. When either the interrupt handler or
2133 * the timer routine detects a event it will one of the task
2134 * bits then wake us up.
2135 **************************************************************************/
2136 static int
2137 qla2x00_do_dpc(void *data)
2138 {
2139 scsi_qla_host_t *ha;
2140 fc_port_t *fcport;
2141 uint8_t status;
2142 uint16_t next_loopid;
2143
2144 ha = (scsi_qla_host_t *)data;
2145
2146 set_user_nice(current, -20);
2147
2148 while (!kthread_should_stop()) {
2149 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
2150
2151 set_current_state(TASK_INTERRUPTIBLE);
2152 schedule();
2153 __set_current_state(TASK_RUNNING);
2154
2155 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
2156
2157 /* Initialization not yet finished. Don't do anything yet. */
2158 if (!ha->flags.init_done)
2159 continue;
2160
2161 DEBUG3(printk("scsi(%ld): DPC handler\n", ha->host_no));
2162
2163 ha->dpc_active = 1;
2164
2165 if (ha->flags.mbox_busy) {
2166 ha->dpc_active = 0;
2167 continue;
2168 }
2169
2170 if (test_and_clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) {
2171
2172 DEBUG(printk("scsi(%ld): dpc: sched "
2173 "qla2x00_abort_isp ha = %p\n",
2174 ha->host_no, ha));
2175 if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
2176 &ha->dpc_flags))) {
2177
2178 if (qla2x00_abort_isp(ha)) {
2179 /* failed. retry later */
2180 set_bit(ISP_ABORT_NEEDED,
2181 &ha->dpc_flags);
2182 }
2183 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2184 }
2185 DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
2186 ha->host_no));
2187 }
2188
2189 if (test_and_clear_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags))
2190 qla2x00_update_fcports(ha);
2191
2192 if (test_and_clear_bit(LOOP_RESET_NEEDED, &ha->dpc_flags)) {
2193 DEBUG(printk("scsi(%ld): dpc: sched loop_reset()\n",
2194 ha->host_no));
2195 qla2x00_loop_reset(ha);
2196 }
2197
2198 if (test_and_clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) &&
2199 (!(test_and_set_bit(RESET_ACTIVE, &ha->dpc_flags)))) {
2200
2201 DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
2202 ha->host_no));
2203
2204 qla2x00_rst_aen(ha);
2205 clear_bit(RESET_ACTIVE, &ha->dpc_flags);
2206 }
2207
2208 /* Retry each device up to login retry count */
2209 if ((test_and_clear_bit(RELOGIN_NEEDED, &ha->dpc_flags)) &&
2210 !test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) &&
2211 atomic_read(&ha->loop_state) != LOOP_DOWN) {
2212
2213 DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
2214 ha->host_no));
2215
2216 next_loopid = 0;
2217 list_for_each_entry(fcport, &ha->fcports, list) {
2218 if (fcport->port_type != FCT_TARGET)
2219 continue;
2220
2221 /*
2222 * If the port is not ONLINE then try to login
2223 * to it if we haven't run out of retries.
2224 */
2225 if (atomic_read(&fcport->state) != FCS_ONLINE &&
2226 fcport->login_retry) {
2227
2228 fcport->login_retry--;
2229 if (fcport->flags & FCF_FABRIC_DEVICE) {
2230 if (fcport->flags &
2231 FCF_TAPE_PRESENT)
2232 ha->isp_ops.fabric_logout(
2233 ha, fcport->loop_id,
2234 fcport->d_id.b.domain,
2235 fcport->d_id.b.area,
2236 fcport->d_id.b.al_pa);
2237 status = qla2x00_fabric_login(
2238 ha, fcport, &next_loopid);
2239 } else
2240 status =
2241 qla2x00_local_device_login(
2242 ha, fcport);
2243
2244 if (status == QLA_SUCCESS) {
2245 fcport->old_loop_id = fcport->loop_id;
2246
2247 DEBUG(printk("scsi(%ld): port login OK: logged in ID 0x%x\n",
2248 ha->host_no, fcport->loop_id));
2249
2250 qla2x00_update_fcport(ha,
2251 fcport);
2252 } else if (status == 1) {
2253 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
2254 /* retry the login again */
2255 DEBUG(printk("scsi(%ld): Retrying %d login again loop_id 0x%x\n",
2256 ha->host_no,
2257 fcport->login_retry, fcport->loop_id));
2258 } else {
2259 fcport->login_retry = 0;
2260 }
2261 }
2262 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2263 break;
2264 }
2265 DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
2266 ha->host_no));
2267 }
2268
2269 if ((test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags)) &&
2270 atomic_read(&ha->loop_state) != LOOP_DOWN) {
2271
2272 clear_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags);
2273 DEBUG(printk("scsi(%ld): qla2x00_login_retry()\n",
2274 ha->host_no));
2275
2276 set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
2277
2278 DEBUG(printk("scsi(%ld): qla2x00_login_retry - end\n",
2279 ha->host_no));
2280 }
2281
2282 if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
2283
2284 DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
2285 ha->host_no));
2286
2287 if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
2288 &ha->dpc_flags))) {
2289
2290 qla2x00_loop_resync(ha);
2291
2292 clear_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags);
2293 }
2294
2295 DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
2296 ha->host_no));
2297 }
2298
2299 if (test_and_clear_bit(FCPORT_RESCAN_NEEDED, &ha->dpc_flags)) {
2300
2301 DEBUG(printk("scsi(%ld): Rescan flagged fcports...\n",
2302 ha->host_no));
2303
2304 qla2x00_rescan_fcports(ha);
2305
2306 DEBUG(printk("scsi(%ld): Rescan flagged fcports..."
2307 "end.\n",
2308 ha->host_no));
2309 }
2310
2311 if (!ha->interrupts_on)
2312 ha->isp_ops.enable_intrs(ha);
2313
2314 if (test_and_clear_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags))
2315 ha->isp_ops.beacon_blink(ha);
2316
2317 ha->dpc_active = 0;
2318 } /* End of while(1) */
2319
2320 DEBUG(printk("scsi(%ld): DPC handler exiting\n", ha->host_no));
2321
2322 /*
2323 * Make sure that nobody tries to wake us up again.
2324 */
2325 ha->dpc_active = 0;
2326
2327 return 0;
2328 }
2329
2330 void
2331 qla2xxx_wake_dpc(scsi_qla_host_t *ha)
2332 {
2333 if (ha->dpc_thread)
2334 wake_up_process(ha->dpc_thread);
2335 }
2336
2337 /*
2338 * qla2x00_rst_aen
2339 * Processes asynchronous reset.
2340 *
2341 * Input:
2342 * ha = adapter block pointer.
2343 */
2344 static void
2345 qla2x00_rst_aen(scsi_qla_host_t *ha)
2346 {
2347 if (ha->flags.online && !ha->flags.reset_active &&
2348 !atomic_read(&ha->loop_down_timer) &&
2349 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) {
2350 do {
2351 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
2352
2353 /*
2354 * Issue marker command only when we are going to start
2355 * the I/O.
2356 */
2357 ha->marker_needed = 1;
2358 } while (!atomic_read(&ha->loop_down_timer) &&
2359 (test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags)));
2360 }
2361 }
2362
2363 static void
2364 qla2x00_sp_free_dma(scsi_qla_host_t *ha, srb_t *sp)
2365 {
2366 struct scsi_cmnd *cmd = sp->cmd;
2367
2368 if (sp->flags & SRB_DMA_VALID) {
2369 if (cmd->use_sg) {
2370 dma_unmap_sg(&ha->pdev->dev, cmd->request_buffer,
2371 cmd->use_sg, cmd->sc_data_direction);
2372 } else if (cmd->request_bufflen) {
2373 dma_unmap_single(&ha->pdev->dev, sp->dma_handle,
2374 cmd->request_bufflen, cmd->sc_data_direction);
2375 }
2376 sp->flags &= ~SRB_DMA_VALID;
2377 }
2378 CMD_SP(cmd) = NULL;
2379 }
2380
2381 void
2382 qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *sp)
2383 {
2384 struct scsi_cmnd *cmd = sp->cmd;
2385
2386 qla2x00_sp_free_dma(ha, sp);
2387
2388 mempool_free(sp, ha->srb_mempool);
2389
2390 cmd->scsi_done(cmd);
2391 }
2392
2393 /**************************************************************************
2394 * qla2x00_timer
2395 *
2396 * Description:
2397 * One second timer
2398 *
2399 * Context: Interrupt
2400 ***************************************************************************/
2401 static void
2402 qla2x00_timer(scsi_qla_host_t *ha)
2403 {
2404 unsigned long cpu_flags = 0;
2405 fc_port_t *fcport;
2406 int start_dpc = 0;
2407 int index;
2408 srb_t *sp;
2409 int t;
2410
2411 /*
2412 * Ports - Port down timer.
2413 *
2414 * Whenever, a port is in the LOST state we start decrementing its port
2415 * down timer every second until it reaches zero. Once it reaches zero
2416 * the port it marked DEAD.
2417 */
2418 t = 0;
2419 list_for_each_entry(fcport, &ha->fcports, list) {
2420 if (fcport->port_type != FCT_TARGET)
2421 continue;
2422
2423 if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
2424
2425 if (atomic_read(&fcport->port_down_timer) == 0)
2426 continue;
2427
2428 if (atomic_dec_and_test(&fcport->port_down_timer) != 0)
2429 atomic_set(&fcport->state, FCS_DEVICE_DEAD);
2430
2431 DEBUG(printk("scsi(%ld): fcport-%d - port retry count: "
2432 "%d remaining\n",
2433 ha->host_no,
2434 t, atomic_read(&fcport->port_down_timer)));
2435 }
2436 t++;
2437 } /* End of for fcport */
2438
2439
2440 /* Loop down handler. */
2441 if (atomic_read(&ha->loop_down_timer) > 0 &&
2442 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags)) && ha->flags.online) {
2443
2444 if (atomic_read(&ha->loop_down_timer) ==
2445 ha->loop_down_abort_time) {
2446
2447 DEBUG(printk("scsi(%ld): Loop Down - aborting the "
2448 "queues before time expire\n",
2449 ha->host_no));
2450
2451 if (!IS_QLA2100(ha) && ha->link_down_timeout)
2452 atomic_set(&ha->loop_state, LOOP_DEAD);
2453
2454 /* Schedule an ISP abort to return any tape commands. */
2455 spin_lock_irqsave(&ha->hardware_lock, cpu_flags);
2456 for (index = 1; index < MAX_OUTSTANDING_COMMANDS;
2457 index++) {
2458 fc_port_t *sfcp;
2459
2460 sp = ha->outstanding_cmds[index];
2461 if (!sp)
2462 continue;
2463 sfcp = sp->fcport;
2464 if (!(sfcp->flags & FCF_TAPE_PRESENT))
2465 continue;
2466
2467 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2468 break;
2469 }
2470 spin_unlock_irqrestore(&ha->hardware_lock, cpu_flags);
2471
2472 set_bit(ABORT_QUEUES_NEEDED, &ha->dpc_flags);
2473 start_dpc++;
2474 }
2475
2476 /* if the loop has been down for 4 minutes, reinit adapter */
2477 if (atomic_dec_and_test(&ha->loop_down_timer) != 0) {
2478 DEBUG(printk("scsi(%ld): Loop down exceed 4 mins - "
2479 "restarting queues.\n",
2480 ha->host_no));
2481
2482 set_bit(RESTART_QUEUES_NEEDED, &ha->dpc_flags);
2483 start_dpc++;
2484
2485 if (!(ha->device_flags & DFLG_NO_CABLE)) {
2486 DEBUG(printk("scsi(%ld): Loop down - "
2487 "aborting ISP.\n",
2488 ha->host_no));
2489 qla_printk(KERN_WARNING, ha,
2490 "Loop down - aborting ISP.\n");
2491
2492 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2493 }
2494 }
2495 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
2496 ha->host_no,
2497 atomic_read(&ha->loop_down_timer)));
2498 }
2499
2500 /* Check if beacon LED needs to be blinked */
2501 if (ha->beacon_blink_led == 1) {
2502 set_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags);
2503 start_dpc++;
2504 }
2505
2506 /* Schedule the DPC routine if needed */
2507 if ((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags) ||
2508 test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) ||
2509 test_bit(LOOP_RESET_NEEDED, &ha->dpc_flags) ||
2510 test_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags) ||
2511 start_dpc ||
2512 test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags) ||
2513 test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) ||
2514 test_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags) ||
2515 test_bit(RELOGIN_NEEDED, &ha->dpc_flags)))
2516 qla2xxx_wake_dpc(ha);
2517
2518 qla2x00_restart_timer(ha, WATCH_INTERVAL);
2519 }
2520
2521 /* XXX(hch): crude hack to emulate a down_timeout() */
2522 int
2523 qla2x00_down_timeout(struct semaphore *sema, unsigned long timeout)
2524 {
2525 const unsigned int step = 100; /* msecs */
2526 unsigned int iterations = jiffies_to_msecs(timeout)/100;
2527
2528 do {
2529 if (!down_trylock(sema))
2530 return 0;
2531 if (msleep_interruptible(step))
2532 break;
2533 } while (--iterations >= 0);
2534
2535 return -ETIMEDOUT;
2536 }
2537
2538 /* Firmware interface routines. */
2539
2540 #define FW_BLOBS 5
2541 #define FW_ISP21XX 0
2542 #define FW_ISP22XX 1
2543 #define FW_ISP2300 2
2544 #define FW_ISP2322 3
2545 #define FW_ISP24XX 4
2546
2547 static DECLARE_MUTEX(qla_fw_lock);
2548
2549 static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
2550 { .name = "ql2100_fw.bin", .segs = { 0x1000, 0 }, },
2551 { .name = "ql2200_fw.bin", .segs = { 0x1000, 0 }, },
2552 { .name = "ql2300_fw.bin", .segs = { 0x800, 0 }, },
2553 { .name = "ql2322_fw.bin", .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
2554 { .name = "ql2400_fw.bin", },
2555 };
2556
2557 struct fw_blob *
2558 qla2x00_request_firmware(scsi_qla_host_t *ha)
2559 {
2560 struct fw_blob *blob;
2561
2562 blob = NULL;
2563 if (IS_QLA2100(ha)) {
2564 blob = &qla_fw_blobs[FW_ISP21XX];
2565 } else if (IS_QLA2200(ha)) {
2566 blob = &qla_fw_blobs[FW_ISP22XX];
2567 } else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
2568 blob = &qla_fw_blobs[FW_ISP2300];
2569 } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
2570 blob = &qla_fw_blobs[FW_ISP2322];
2571 } else if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
2572 blob = &qla_fw_blobs[FW_ISP24XX];
2573 }
2574
2575 down(&qla_fw_lock);
2576 if (blob->fw)
2577 goto out;
2578
2579 if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
2580 DEBUG2(printk("scsi(%ld): Failed to load firmware image "
2581 "(%s).\n", ha->host_no, blob->name));
2582 blob->fw = NULL;
2583 blob = NULL;
2584 goto out;
2585 }
2586
2587 out:
2588 up(&qla_fw_lock);
2589 return blob;
2590 }
2591
2592 static void
2593 qla2x00_release_firmware(void)
2594 {
2595 int idx;
2596
2597 down(&qla_fw_lock);
2598 for (idx = 0; idx < FW_BLOBS; idx++)
2599 if (qla_fw_blobs[idx].fw)
2600 release_firmware(qla_fw_blobs[idx].fw);
2601 up(&qla_fw_lock);
2602 }
2603
2604 static struct pci_device_id qla2xxx_pci_tbl[] = {
2605 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
2606 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
2607 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
2608 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
2609 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
2610 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
2611 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
2612 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
2613 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
2614 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
2615 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
2616 { 0 },
2617 };
2618 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
2619
2620 static int __devinit
2621 qla2xxx_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
2622 {
2623 return qla2x00_probe_one(pdev);
2624 }
2625
2626 static void __devexit
2627 qla2xxx_remove_one(struct pci_dev *pdev)
2628 {
2629 qla2x00_remove_one(pdev);
2630 }
2631
2632 static struct pci_driver qla2xxx_pci_driver = {
2633 .name = QLA2XXX_DRIVER_NAME,
2634 .driver = {
2635 .owner = THIS_MODULE,
2636 },
2637 .id_table = qla2xxx_pci_tbl,
2638 .probe = qla2xxx_probe_one,
2639 .remove = __devexit_p(qla2xxx_remove_one),
2640 };
2641
2642 static inline int
2643 qla2x00_pci_module_init(void)
2644 {
2645 return pci_module_init(&qla2xxx_pci_driver);
2646 }
2647
2648 static inline void
2649 qla2x00_pci_module_exit(void)
2650 {
2651 pci_unregister_driver(&qla2xxx_pci_driver);
2652 }
2653
2654 /**
2655 * qla2x00_module_init - Module initialization.
2656 **/
2657 static int __init
2658 qla2x00_module_init(void)
2659 {
2660 int ret = 0;
2661
2662 /* Allocate cache for SRBs. */
2663 srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
2664 SLAB_HWCACHE_ALIGN, NULL, NULL);
2665 if (srb_cachep == NULL) {
2666 printk(KERN_ERR
2667 "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
2668 return -ENOMEM;
2669 }
2670
2671 /* Derive version string. */
2672 strcpy(qla2x00_version_str, QLA2XXX_VERSION);
2673 #if DEBUG_QLA2100
2674 strcat(qla2x00_version_str, "-debug");
2675 #endif
2676 qla2xxx_transport_template =
2677 fc_attach_transport(&qla2xxx_transport_functions);
2678 if (!qla2xxx_transport_template)
2679 return -ENODEV;
2680
2681 printk(KERN_INFO "QLogic Fibre Channel HBA Driver\n");
2682 ret = qla2x00_pci_module_init();
2683 if (ret) {
2684 kmem_cache_destroy(srb_cachep);
2685 fc_release_transport(qla2xxx_transport_template);
2686 }
2687 return ret;
2688 }
2689
2690 /**
2691 * qla2x00_module_exit - Module cleanup.
2692 **/
2693 static void __exit
2694 qla2x00_module_exit(void)
2695 {
2696 qla2x00_pci_module_exit();
2697 qla2x00_release_firmware();
2698 kmem_cache_destroy(srb_cachep);
2699 fc_release_transport(qla2xxx_transport_template);
2700 }
2701
2702 module_init(qla2x00_module_init);
2703 module_exit(qla2x00_module_exit);
2704
2705 MODULE_AUTHOR("QLogic Corporation");
2706 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
2707 MODULE_LICENSE("GPL");
2708 MODULE_VERSION(QLA2XXX_VERSION);
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