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PCIE: check and return bus_register errors
[linux-2.6/next.git] / drivers / scsi / qla2xxx / qla_os.c
blob65cbe2f5eea24c110438c4404e85e5cba09214bc
1 /*
2 * QLogic Fibre Channel HBA Driver
3 * Copyright (c) 2003-2005 QLogic Corporation
4 *
5 * See LICENSE.qla2xxx for copyright and licensing details.
6 */
7 #include "qla_def.h"
8
9 #include <linux/moduleparam.h>
10 #include <linux/vmalloc.h>
11 #include <linux/delay.h>
12 #include <linux/kthread.h>
13
14 #include <scsi/scsi_tcq.h>
15 #include <scsi/scsicam.h>
16 #include <scsi/scsi_transport.h>
17 #include <scsi/scsi_transport_fc.h>
18
19 /*
20 * Driver version
21 */
22 char qla2x00_version_str[40];
23
24 /*
25 * SRB allocation cache
26 */
27 static kmem_cache_t *srb_cachep;
28
29 /*
30 * Ioctl related information.
31 */
32 static int num_hosts;
33
34 int ql2xlogintimeout = 20;
35 module_param(ql2xlogintimeout, int, S_IRUGO|S_IRUSR);
36 MODULE_PARM_DESC(ql2xlogintimeout,
37 "Login timeout value in seconds.");
38
39 int qlport_down_retry = 30;
40 module_param(qlport_down_retry, int, S_IRUGO|S_IRUSR);
41 MODULE_PARM_DESC(qlport_down_retry,
42 "Maximum number of command retries to a port that returns "
43 "a PORT-DOWN status.");
44
45 int ql2xplogiabsentdevice;
46 module_param(ql2xplogiabsentdevice, int, S_IRUGO|S_IWUSR);
47 MODULE_PARM_DESC(ql2xplogiabsentdevice,
48 "Option to enable PLOGI to devices that are not present after "
49 "a Fabric scan. This is needed for several broken switches. "
50 "Default is 0 - no PLOGI. 1 - perfom PLOGI.");
51
52 int ql2xloginretrycount = 0;
53 module_param(ql2xloginretrycount, int, S_IRUGO|S_IRUSR);
54 MODULE_PARM_DESC(ql2xloginretrycount,
55 "Specify an alternate value for the NVRAM login retry count.");
56
57 int ql2xallocfwdump = 1;
58 module_param(ql2xallocfwdump, int, S_IRUGO|S_IRUSR);
59 MODULE_PARM_DESC(ql2xallocfwdump,
60 "Option to enable allocation of memory for a firmware dump "
61 "during HBA initialization. Memory allocation requirements "
62 "vary by ISP type. Default is 1 - allocate memory.");
63
64 int extended_error_logging;
65 module_param(extended_error_logging, int, S_IRUGO|S_IRUSR);
66 MODULE_PARM_DESC(extended_error_logging,
67 "Option to enable extended error logging, "
68 "Default is 0 - no logging. 1 - log errors.");
69
70 static void qla2x00_free_device(scsi_qla_host_t *);
71
72 static void qla2x00_config_dma_addressing(scsi_qla_host_t *ha);
73
74 int ql2xfdmienable;
75 module_param(ql2xfdmienable, int, S_IRUGO|S_IRUSR);
76 MODULE_PARM_DESC(ql2xfdmienable,
77 "Enables FDMI registratons "
78 "Default is 0 - no FDMI. 1 - perfom FDMI.");
79
80 /*
81 * SCSI host template entry points
82 */
83 static int qla2xxx_slave_configure(struct scsi_device * device);
84 static int qla2xxx_slave_alloc(struct scsi_device *);
85 static void qla2xxx_slave_destroy(struct scsi_device *);
86 static int qla2x00_queuecommand(struct scsi_cmnd *cmd,
87 void (*fn)(struct scsi_cmnd *));
88 static int qla24xx_queuecommand(struct scsi_cmnd *cmd,
89 void (*fn)(struct scsi_cmnd *));
90 static int qla2xxx_eh_abort(struct scsi_cmnd *);
91 static int qla2xxx_eh_device_reset(struct scsi_cmnd *);
92 static int qla2xxx_eh_bus_reset(struct scsi_cmnd *);
93 static int qla2xxx_eh_host_reset(struct scsi_cmnd *);
94 static int qla2x00_loop_reset(scsi_qla_host_t *ha);
95 static int qla2x00_device_reset(scsi_qla_host_t *, fc_port_t *);
96
97 static int qla2x00_change_queue_depth(struct scsi_device *, int);
98 static int qla2x00_change_queue_type(struct scsi_device *, int);
99
100 static struct scsi_host_template qla2x00_driver_template = {
101 .module = THIS_MODULE,
102 .name = QLA2XXX_DRIVER_NAME,
103 .queuecommand = qla2x00_queuecommand,
104
105 .eh_abort_handler = qla2xxx_eh_abort,
106 .eh_device_reset_handler = qla2xxx_eh_device_reset,
107 .eh_bus_reset_handler = qla2xxx_eh_bus_reset,
108 .eh_host_reset_handler = qla2xxx_eh_host_reset,
109
110 .slave_configure = qla2xxx_slave_configure,
111
112 .slave_alloc = qla2xxx_slave_alloc,
113 .slave_destroy = qla2xxx_slave_destroy,
114 .change_queue_depth = qla2x00_change_queue_depth,
115 .change_queue_type = qla2x00_change_queue_type,
116 .this_id = -1,
117 .cmd_per_lun = 3,
118 .use_clustering = ENABLE_CLUSTERING,
119 .sg_tablesize = SG_ALL,
120
121 /*
122 * The RISC allows for each command to transfer (2^32-1) bytes of data,
123 * which equates to 0x800000 sectors.
124 */
125 .max_sectors = 0xFFFF,
126 .shost_attrs = qla2x00_host_attrs,
127 };
128
129 static struct scsi_host_template qla24xx_driver_template = {
130 .module = THIS_MODULE,
131 .name = QLA2XXX_DRIVER_NAME,
132 .queuecommand = qla24xx_queuecommand,
133
134 .eh_abort_handler = qla2xxx_eh_abort,
135 .eh_device_reset_handler = qla2xxx_eh_device_reset,
136 .eh_bus_reset_handler = qla2xxx_eh_bus_reset,
137 .eh_host_reset_handler = qla2xxx_eh_host_reset,
138
139 .slave_configure = qla2xxx_slave_configure,
140
141 .slave_alloc = qla2xxx_slave_alloc,
142 .slave_destroy = qla2xxx_slave_destroy,
143 .change_queue_depth = qla2x00_change_queue_depth,
144 .change_queue_type = qla2x00_change_queue_type,
145 .this_id = -1,
146 .cmd_per_lun = 3,
147 .use_clustering = ENABLE_CLUSTERING,
148 .sg_tablesize = SG_ALL,
149
150 .max_sectors = 0xFFFF,
151 .shost_attrs = qla2x00_host_attrs,
152 };
153
154 static struct scsi_transport_template *qla2xxx_transport_template = NULL;
155
156 /* TODO Convert to inlines
157 *
158 * Timer routines
159 */
160 #define WATCH_INTERVAL 1 /* number of seconds */
161
162 static void qla2x00_timer(scsi_qla_host_t *);
163
164 static __inline__ void qla2x00_start_timer(scsi_qla_host_t *,
165 void *, unsigned long);
166 static __inline__ void qla2x00_restart_timer(scsi_qla_host_t *, unsigned long);
167 static __inline__ void qla2x00_stop_timer(scsi_qla_host_t *);
168
169 static inline void
170 qla2x00_start_timer(scsi_qla_host_t *ha, void *func, unsigned long interval)
171 {
172 init_timer(&ha->timer);
173 ha->timer.expires = jiffies + interval * HZ;
174 ha->timer.data = (unsigned long)ha;
175 ha->timer.function = (void (*)(unsigned long))func;
176 add_timer(&ha->timer);
177 ha->timer_active = 1;
178 }
179
180 static inline void
181 qla2x00_restart_timer(scsi_qla_host_t *ha, unsigned long interval)
182 {
183 mod_timer(&ha->timer, jiffies + interval * HZ);
184 }
185
186 static __inline__ void
187 qla2x00_stop_timer(scsi_qla_host_t *ha)
188 {
189 del_timer_sync(&ha->timer);
190 ha->timer_active = 0;
191 }
192
193 static int qla2x00_do_dpc(void *data);
194
195 static void qla2x00_rst_aen(scsi_qla_host_t *);
196
197 static uint8_t qla2x00_mem_alloc(scsi_qla_host_t *);
198 static void qla2x00_mem_free(scsi_qla_host_t *ha);
199 static int qla2x00_allocate_sp_pool( scsi_qla_host_t *ha);
200 static void qla2x00_free_sp_pool(scsi_qla_host_t *ha);
201 static void qla2x00_sp_free_dma(scsi_qla_host_t *, srb_t *);
202 void qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *);
203
204 /* -------------------------------------------------------------------------- */
205
206 static char *
207 qla2x00_pci_info_str(struct scsi_qla_host *ha, char *str)
208 {
209 static char *pci_bus_modes[] = {
210 "33", "66", "100", "133",
211 };
212 uint16_t pci_bus;
213
214 strcpy(str, "PCI");
215 pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
216 if (pci_bus) {
217 strcat(str, "-X (");
218 strcat(str, pci_bus_modes[pci_bus]);
219 } else {
220 pci_bus = (ha->pci_attr & BIT_8) >> 8;
221 strcat(str, " (");
222 strcat(str, pci_bus_modes[pci_bus]);
223 }
224 strcat(str, " MHz)");
225
226 return (str);
227 }
228
229 static char *
230 qla24xx_pci_info_str(struct scsi_qla_host *ha, char *str)
231 {
232 static char *pci_bus_modes[] = { "33", "66", "100", "133", };
233 uint32_t pci_bus;
234 int pcie_reg;
235
236 pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
237 if (pcie_reg) {
238 char lwstr[6];
239 uint16_t pcie_lstat, lspeed, lwidth;
240
241 pcie_reg += 0x12;
242 pci_read_config_word(ha->pdev, pcie_reg, &pcie_lstat);
243 lspeed = pcie_lstat & (BIT_0 | BIT_1 | BIT_2 | BIT_3);
244 lwidth = (pcie_lstat &
245 (BIT_4 | BIT_5 | BIT_6 | BIT_7 | BIT_8 | BIT_9)) >> 4;
246
247 strcpy(str, "PCIe (");
248 if (lspeed == 1)
249 strcat(str, "2.5Gb/s ");
250 else
251 strcat(str, "<unknown> ");
252 snprintf(lwstr, sizeof(lwstr), "x%d)", lwidth);
253 strcat(str, lwstr);
254
255 return str;
256 }
257
258 strcpy(str, "PCI");
259 pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
260 if (pci_bus == 0 || pci_bus == 8) {
261 strcat(str, " (");
262 strcat(str, pci_bus_modes[pci_bus >> 3]);
263 } else {
264 strcat(str, "-X ");
265 if (pci_bus & BIT_2)
266 strcat(str, "Mode 2");
267 else
268 strcat(str, "Mode 1");
269 strcat(str, " (");
270 strcat(str, pci_bus_modes[pci_bus & ~BIT_2]);
271 }
272 strcat(str, " MHz)");
273
274 return str;
275 }
276
277 char *
278 qla2x00_fw_version_str(struct scsi_qla_host *ha, char *str)
279 {
280 char un_str[10];
281
282 sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
283 ha->fw_minor_version,
284 ha->fw_subminor_version);
285
286 if (ha->fw_attributes & BIT_9) {
287 strcat(str, "FLX");
288 return (str);
289 }
290
291 switch (ha->fw_attributes & 0xFF) {
292 case 0x7:
293 strcat(str, "EF");
294 break;
295 case 0x17:
296 strcat(str, "TP");
297 break;
298 case 0x37:
299 strcat(str, "IP");
300 break;
301 case 0x77:
302 strcat(str, "VI");
303 break;
304 default:
305 sprintf(un_str, "(%x)", ha->fw_attributes);
306 strcat(str, un_str);
307 break;
308 }
309 if (ha->fw_attributes & 0x100)
310 strcat(str, "X");
311
312 return (str);
313 }
314
315 char *
316 qla24xx_fw_version_str(struct scsi_qla_host *ha, char *str)
317 {
318 sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
319 ha->fw_minor_version,
320 ha->fw_subminor_version);
321
322 if (ha->fw_attributes & BIT_0)
323 strcat(str, "[Class 2] ");
324 if (ha->fw_attributes & BIT_1)
325 strcat(str, "[IP] ");
326 if (ha->fw_attributes & BIT_2)
327 strcat(str, "[Multi-ID] ");
328 if (ha->fw_attributes & BIT_13)
329 strcat(str, "[Experimental]");
330 return str;
331 }
332
333 static inline srb_t *
334 qla2x00_get_new_sp(scsi_qla_host_t *ha, fc_port_t *fcport,
335 struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
336 {
337 srb_t *sp;
338
339 sp = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
340 if (!sp)
341 return sp;
342
343 sp->ha = ha;
344 sp->fcport = fcport;
345 sp->cmd = cmd;
346 sp->flags = 0;
347 CMD_SP(cmd) = (void *)sp;
348 cmd->scsi_done = done;
349
350 return sp;
351 }
352
353 static int
354 qla2x00_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
355 {
356 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
357 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
358 struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
359 srb_t *sp;
360 int rval;
361
362 rval = fc_remote_port_chkready(rport);
363 if (rval) {
364 cmd->result = rval;
365 goto qc_fail_command;
366 }
367
368 /* Close window on fcport/rport state-transitioning. */
369 if (!*(fc_port_t **)rport->dd_data) {
370 cmd->result = DID_IMM_RETRY << 16;
371 goto qc_fail_command;
372 }
373
374 if (atomic_read(&fcport->state) != FCS_ONLINE) {
375 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
376 atomic_read(&ha->loop_state) == LOOP_DEAD) {
377 cmd->result = DID_NO_CONNECT << 16;
378 goto qc_fail_command;
379 }
380 goto qc_host_busy;
381 }
382
383 spin_unlock_irq(ha->host->host_lock);
384
385 sp = qla2x00_get_new_sp(ha, fcport, cmd, done);
386 if (!sp)
387 goto qc_host_busy_lock;
388
389 rval = qla2x00_start_scsi(sp);
390 if (rval != QLA_SUCCESS)
391 goto qc_host_busy_free_sp;
392
393 spin_lock_irq(ha->host->host_lock);
394
395 return 0;
396
397 qc_host_busy_free_sp:
398 qla2x00_sp_free_dma(ha, sp);
399 mempool_free(sp, ha->srb_mempool);
400
401 qc_host_busy_lock:
402 spin_lock_irq(ha->host->host_lock);
403
404 qc_host_busy:
405 return SCSI_MLQUEUE_HOST_BUSY;
406
407 qc_fail_command:
408 done(cmd);
409
410 return 0;
411 }
412
413
414 static int
415 qla24xx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
416 {
417 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
418 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
419 struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
420 srb_t *sp;
421 int rval;
422
423 rval = fc_remote_port_chkready(rport);
424 if (rval) {
425 cmd->result = rval;
426 goto qc24_fail_command;
427 }
428
429 /* Close window on fcport/rport state-transitioning. */
430 if (!*(fc_port_t **)rport->dd_data) {
431 cmd->result = DID_IMM_RETRY << 16;
432 goto qc24_fail_command;
433 }
434
435 if (atomic_read(&fcport->state) != FCS_ONLINE) {
436 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
437 atomic_read(&ha->loop_state) == LOOP_DEAD) {
438 cmd->result = DID_NO_CONNECT << 16;
439 goto qc24_fail_command;
440 }
441 goto qc24_host_busy;
442 }
443
444 spin_unlock_irq(ha->host->host_lock);
445
446 sp = qla2x00_get_new_sp(ha, fcport, cmd, done);
447 if (!sp)
448 goto qc24_host_busy_lock;
449
450 rval = qla24xx_start_scsi(sp);
451 if (rval != QLA_SUCCESS)
452 goto qc24_host_busy_free_sp;
453
454 spin_lock_irq(ha->host->host_lock);
455
456 return 0;
457
458 qc24_host_busy_free_sp:
459 qla2x00_sp_free_dma(ha, sp);
460 mempool_free(sp, ha->srb_mempool);
461
462 qc24_host_busy_lock:
463 spin_lock_irq(ha->host->host_lock);
464
465 qc24_host_busy:
466 return SCSI_MLQUEUE_HOST_BUSY;
467
468 qc24_fail_command:
469 done(cmd);
470
471 return 0;
472 }
473
474
475 /*
476 * qla2x00_eh_wait_on_command
477 * Waits for the command to be returned by the Firmware for some
478 * max time.
479 *
480 * Input:
481 * ha = actual ha whose done queue will contain the command
482 * returned by firmware.
483 * cmd = Scsi Command to wait on.
484 * flag = Abort/Reset(Bus or Device Reset)
485 *
486 * Return:
487 * Not Found : 0
488 * Found : 1
489 */
490 static int
491 qla2x00_eh_wait_on_command(scsi_qla_host_t *ha, struct scsi_cmnd *cmd)
492 {
493 #define ABORT_POLLING_PERIOD 1000
494 #define ABORT_WAIT_ITER ((10 * 1000) / (ABORT_POLLING_PERIOD))
495 unsigned long wait_iter = ABORT_WAIT_ITER;
496 int ret = QLA_SUCCESS;
497
498 while (CMD_SP(cmd)) {
499 msleep(ABORT_POLLING_PERIOD);
500
501 if (--wait_iter)
502 break;
503 }
504 if (CMD_SP(cmd))
505 ret = QLA_FUNCTION_FAILED;
506
507 return ret;
508 }
509
510 /*
511 * qla2x00_wait_for_hba_online
512 * Wait till the HBA is online after going through
513 * <= MAX_RETRIES_OF_ISP_ABORT or
514 * finally HBA is disabled ie marked offline
515 *
516 * Input:
517 * ha - pointer to host adapter structure
518 *
519 * Note:
520 * Does context switching-Release SPIN_LOCK
521 * (if any) before calling this routine.
522 *
523 * Return:
524 * Success (Adapter is online) : 0
525 * Failed (Adapter is offline/disabled) : 1
526 */
527 int
528 qla2x00_wait_for_hba_online(scsi_qla_host_t *ha)
529 {
530 int return_status;
531 unsigned long wait_online;
532
533 wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
534 while (((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) ||
535 test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags) ||
536 test_bit(ISP_ABORT_RETRY, &ha->dpc_flags) ||
537 ha->dpc_active) && time_before(jiffies, wait_online)) {
538
539 msleep(1000);
540 }
541 if (ha->flags.online)
542 return_status = QLA_SUCCESS;
543 else
544 return_status = QLA_FUNCTION_FAILED;
545
546 DEBUG2(printk("%s return_status=%d\n",__func__,return_status));
547
548 return (return_status);
549 }
550
551 /*
552 * qla2x00_wait_for_loop_ready
553 * Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
554 * to be in LOOP_READY state.
555 * Input:
556 * ha - pointer to host adapter structure
557 *
558 * Note:
559 * Does context switching-Release SPIN_LOCK
560 * (if any) before calling this routine.
561 *
562 *
563 * Return:
564 * Success (LOOP_READY) : 0
565 * Failed (LOOP_NOT_READY) : 1
566 */
567 static inline int
568 qla2x00_wait_for_loop_ready(scsi_qla_host_t *ha)
569 {
570 int return_status = QLA_SUCCESS;
571 unsigned long loop_timeout ;
572
573 /* wait for 5 min at the max for loop to be ready */
574 loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ);
575
576 while ((!atomic_read(&ha->loop_down_timer) &&
577 atomic_read(&ha->loop_state) == LOOP_DOWN) ||
578 atomic_read(&ha->loop_state) != LOOP_READY) {
579 if (atomic_read(&ha->loop_state) == LOOP_DEAD) {
580 return_status = QLA_FUNCTION_FAILED;
581 break;
582 }
583 msleep(1000);
584 if (time_after_eq(jiffies, loop_timeout)) {
585 return_status = QLA_FUNCTION_FAILED;
586 break;
587 }
588 }
589 return (return_status);
590 }
591
592 /**************************************************************************
593 * qla2xxx_eh_abort
594 *
595 * Description:
596 * The abort function will abort the specified command.
597 *
598 * Input:
599 * cmd = Linux SCSI command packet to be aborted.
600 *
601 * Returns:
602 * Either SUCCESS or FAILED.
603 *
604 * Note:
605 * Only return FAILED if command not returned by firmware.
606 **************************************************************************/
607 int
608 qla2xxx_eh_abort(struct scsi_cmnd *cmd)
609 {
610 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
611 srb_t *sp;
612 int ret, i;
613 unsigned int id, lun;
614 unsigned long serial;
615 unsigned long flags;
616 int wait = 0;
617
618 if (!CMD_SP(cmd))
619 return SUCCESS;
620
621 ret = SUCCESS;
622
623 id = cmd->device->id;
624 lun = cmd->device->lun;
625 serial = cmd->serial_number;
626
627 /* Check active list for command command. */
628 spin_lock_irqsave(&ha->hardware_lock, flags);
629 for (i = 1; i < MAX_OUTSTANDING_COMMANDS; i++) {
630 sp = ha->outstanding_cmds[i];
631
632 if (sp == NULL)
633 continue;
634
635 if (sp->cmd != cmd)
636 continue;
637
638 DEBUG2(printk("%s(%ld): aborting sp %p from RISC. pid=%ld.\n",
639 __func__, ha->host_no, sp, serial));
640 DEBUG3(qla2x00_print_scsi_cmd(cmd));
641
642 spin_unlock_irqrestore(&ha->hardware_lock, flags);
643 if (ha->isp_ops.abort_command(ha, sp)) {
644 DEBUG2(printk("%s(%ld): abort_command "
645 "mbx failed.\n", __func__, ha->host_no));
646 } else {
647 DEBUG3(printk("%s(%ld): abort_command "
648 "mbx success.\n", __func__, ha->host_no));
649 wait = 1;
650 }
651 spin_lock_irqsave(&ha->hardware_lock, flags);
652
653 break;
654 }
655 spin_unlock_irqrestore(&ha->hardware_lock, flags);
656
657 /* Wait for the command to be returned. */
658 if (wait) {
659 if (qla2x00_eh_wait_on_command(ha, cmd) != QLA_SUCCESS) {
660 qla_printk(KERN_ERR, ha,
661 "scsi(%ld:%d:%d): Abort handler timed out -- %lx "
662 "%x.\n", ha->host_no, id, lun, serial, ret);
663 ret = FAILED;
664 }
665 }
666
667 qla_printk(KERN_INFO, ha,
668 "scsi(%ld:%d:%d): Abort command issued -- %d %lx %x.\n",
669 ha->host_no, id, lun, wait, serial, ret);
670
671 return ret;
672 }
673
674 /**************************************************************************
675 * qla2x00_eh_wait_for_pending_target_commands
676 *
677 * Description:
678 * Waits for all the commands to come back from the specified target.
679 *
680 * Input:
681 * ha - pointer to scsi_qla_host structure.
682 * t - target
683 * Returns:
684 * Either SUCCESS or FAILED.
685 *
686 * Note:
687 **************************************************************************/
688 static int
689 qla2x00_eh_wait_for_pending_target_commands(scsi_qla_host_t *ha, unsigned int t)
690 {
691 int cnt;
692 int status;
693 srb_t *sp;
694 struct scsi_cmnd *cmd;
695 unsigned long flags;
696
697 status = 0;
698
699 /*
700 * Waiting for all commands for the designated target in the active
701 * array
702 */
703 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
704 spin_lock_irqsave(&ha->hardware_lock, flags);
705 sp = ha->outstanding_cmds[cnt];
706 if (sp) {
707 cmd = sp->cmd;
708 spin_unlock_irqrestore(&ha->hardware_lock, flags);
709 if (cmd->device->id == t) {
710 if (!qla2x00_eh_wait_on_command(ha, cmd)) {
711 status = 1;
712 break;
713 }
714 }
715 } else {
716 spin_unlock_irqrestore(&ha->hardware_lock, flags);
717 }
718 }
719 return (status);
720 }
721
722
723 /**************************************************************************
724 * qla2xxx_eh_device_reset
725 *
726 * Description:
727 * The device reset function will reset the target and abort any
728 * executing commands.
729 *
730 * NOTE: The use of SP is undefined within this context. Do *NOT*
731 * attempt to use this value, even if you determine it is
732 * non-null.
733 *
734 * Input:
735 * cmd = Linux SCSI command packet of the command that cause the
736 * bus device reset.
737 *
738 * Returns:
739 * SUCCESS/FAILURE (defined as macro in scsi.h).
740 *
741 **************************************************************************/
742 int
743 qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
744 {
745 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
746 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
747 int ret;
748 unsigned int id, lun;
749 unsigned long serial;
750
751 ret = FAILED;
752
753 id = cmd->device->id;
754 lun = cmd->device->lun;
755 serial = cmd->serial_number;
756
757 if (!fcport)
758 return ret;
759
760 qla_printk(KERN_INFO, ha,
761 "scsi(%ld:%d:%d): DEVICE RESET ISSUED.\n", ha->host_no, id, lun);
762
763 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
764 goto eh_dev_reset_done;
765
766 if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
767 if (qla2x00_device_reset(ha, fcport) == 0)
768 ret = SUCCESS;
769
770 #if defined(LOGOUT_AFTER_DEVICE_RESET)
771 if (ret == SUCCESS) {
772 if (fcport->flags & FC_FABRIC_DEVICE) {
773 ha->isp_ops.fabric_logout(ha, fcport->loop_id);
774 qla2x00_mark_device_lost(ha, fcport, 0, 0);
775 }
776 }
777 #endif
778 } else {
779 DEBUG2(printk(KERN_INFO
780 "%s failed: loop not ready\n",__func__));
781 }
782
783 if (ret == FAILED) {
784 DEBUG3(printk("%s(%ld): device reset failed\n",
785 __func__, ha->host_no));
786 qla_printk(KERN_INFO, ha, "%s: device reset failed\n",
787 __func__);
788
789 goto eh_dev_reset_done;
790 }
791
792 /* Flush outstanding commands. */
793 if (qla2x00_eh_wait_for_pending_target_commands(ha, id))
794 ret = FAILED;
795 if (ret == FAILED) {
796 DEBUG3(printk("%s(%ld): failed while waiting for commands\n",
797 __func__, ha->host_no));
798 qla_printk(KERN_INFO, ha,
799 "%s: failed while waiting for commands\n", __func__);
800 } else
801 qla_printk(KERN_INFO, ha,
802 "scsi(%ld:%d:%d): DEVICE RESET SUCCEEDED.\n", ha->host_no,
803 id, lun);
804 eh_dev_reset_done:
805 return ret;
806 }
807
808 /**************************************************************************
809 * qla2x00_eh_wait_for_pending_commands
810 *
811 * Description:
812 * Waits for all the commands to come back from the specified host.
813 *
814 * Input:
815 * ha - pointer to scsi_qla_host structure.
816 *
817 * Returns:
818 * 1 : SUCCESS
819 * 0 : FAILED
820 *
821 * Note:
822 **************************************************************************/
823 static int
824 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *ha)
825 {
826 int cnt;
827 int status;
828 srb_t *sp;
829 struct scsi_cmnd *cmd;
830 unsigned long flags;
831
832 status = 1;
833
834 /*
835 * Waiting for all commands for the designated target in the active
836 * array
837 */
838 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
839 spin_lock_irqsave(&ha->hardware_lock, flags);
840 sp = ha->outstanding_cmds[cnt];
841 if (sp) {
842 cmd = sp->cmd;
843 spin_unlock_irqrestore(&ha->hardware_lock, flags);
844 status = qla2x00_eh_wait_on_command(ha, cmd);
845 if (status == 0)
846 break;
847 }
848 else {
849 spin_unlock_irqrestore(&ha->hardware_lock, flags);
850 }
851 }
852 return (status);
853 }
854
855
856 /**************************************************************************
857 * qla2xxx_eh_bus_reset
858 *
859 * Description:
860 * The bus reset function will reset the bus and abort any executing
861 * commands.
862 *
863 * Input:
864 * cmd = Linux SCSI command packet of the command that cause the
865 * bus reset.
866 *
867 * Returns:
868 * SUCCESS/FAILURE (defined as macro in scsi.h).
869 *
870 **************************************************************************/
871 int
872 qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
873 {
874 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
875 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
876 int ret;
877 unsigned int id, lun;
878 unsigned long serial;
879
880 ret = FAILED;
881
882 id = cmd->device->id;
883 lun = cmd->device->lun;
884 serial = cmd->serial_number;
885
886 if (!fcport)
887 return ret;
888
889 qla_printk(KERN_INFO, ha,
890 "scsi(%ld:%d:%d): LOOP RESET ISSUED.\n", ha->host_no, id, lun);
891
892 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS) {
893 DEBUG2(printk("%s failed:board disabled\n",__func__));
894 goto eh_bus_reset_done;
895 }
896
897 if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
898 if (qla2x00_loop_reset(ha) == QLA_SUCCESS)
899 ret = SUCCESS;
900 }
901 if (ret == FAILED)
902 goto eh_bus_reset_done;
903
904 /* Flush outstanding commands. */
905 if (!qla2x00_eh_wait_for_pending_commands(ha))
906 ret = FAILED;
907
908 eh_bus_reset_done:
909 qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
910 (ret == FAILED) ? "failed" : "succeded");
911
912 return ret;
913 }
914
915 /**************************************************************************
916 * qla2xxx_eh_host_reset
917 *
918 * Description:
919 * The reset function will reset the Adapter.
920 *
921 * Input:
922 * cmd = Linux SCSI command packet of the command that cause the
923 * adapter reset.
924 *
925 * Returns:
926 * Either SUCCESS or FAILED.
927 *
928 * Note:
929 **************************************************************************/
930 int
931 qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
932 {
933 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
934 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
935 int ret;
936 unsigned int id, lun;
937 unsigned long serial;
938
939 ret = FAILED;
940
941 id = cmd->device->id;
942 lun = cmd->device->lun;
943 serial = cmd->serial_number;
944
945 if (!fcport)
946 return ret;
947
948 qla_printk(KERN_INFO, ha,
949 "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", ha->host_no, id, lun);
950
951 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
952 goto eh_host_reset_lock;
953
954 /*
955 * Fixme-may be dpc thread is active and processing
956 * loop_resync,so wait a while for it to
957 * be completed and then issue big hammer.Otherwise
958 * it may cause I/O failure as big hammer marks the
959 * devices as lost kicking of the port_down_timer
960 * while dpc is stuck for the mailbox to complete.
961 */
962 qla2x00_wait_for_loop_ready(ha);
963 set_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
964 if (qla2x00_abort_isp(ha)) {
965 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
966 /* failed. schedule dpc to try */
967 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
968
969 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
970 goto eh_host_reset_lock;
971 }
972 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
973
974 /* Waiting for our command in done_queue to be returned to OS.*/
975 if (qla2x00_eh_wait_for_pending_commands(ha))
976 ret = SUCCESS;
977
978 eh_host_reset_lock:
979 qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
980 (ret == FAILED) ? "failed" : "succeded");
981
982 return ret;
983 }
984
985 /*
986 * qla2x00_loop_reset
987 * Issue loop reset.
988 *
989 * Input:
990 * ha = adapter block pointer.
991 *
992 * Returns:
993 * 0 = success
994 */
995 static int
996 qla2x00_loop_reset(scsi_qla_host_t *ha)
997 {
998 int status = QLA_SUCCESS;
999 struct fc_port *fcport;
1000
1001 if (ha->flags.enable_lip_reset) {
1002 status = qla2x00_lip_reset(ha);
1003 }
1004
1005 if (status == QLA_SUCCESS && ha->flags.enable_target_reset) {
1006 list_for_each_entry(fcport, &ha->fcports, list) {
1007 if (fcport->port_type != FCT_TARGET)
1008 continue;
1009
1010 status = qla2x00_device_reset(ha, fcport);
1011 if (status != QLA_SUCCESS)
1012 break;
1013 }
1014 }
1015
1016 if (status == QLA_SUCCESS &&
1017 ((!ha->flags.enable_target_reset &&
1018 !ha->flags.enable_lip_reset) ||
1019 ha->flags.enable_lip_full_login)) {
1020
1021 status = qla2x00_full_login_lip(ha);
1022 }
1023
1024 /* Issue marker command only when we are going to start the I/O */
1025 ha->marker_needed = 1;
1026
1027 if (status) {
1028 /* Empty */
1029 DEBUG2_3(printk("%s(%ld): **** FAILED ****\n",
1030 __func__,
1031 ha->host_no));
1032 } else {
1033 /* Empty */
1034 DEBUG3(printk("%s(%ld): exiting normally.\n",
1035 __func__,
1036 ha->host_no));
1037 }
1038
1039 return(status);
1040 }
1041
1042 /*
1043 * qla2x00_device_reset
1044 * Issue bus device reset message to the target.
1045 *
1046 * Input:
1047 * ha = adapter block pointer.
1048 * t = SCSI ID.
1049 * TARGET_QUEUE_LOCK must be released.
1050 * ADAPTER_STATE_LOCK must be released.
1051 *
1052 * Context:
1053 * Kernel context.
1054 */
1055 static int
1056 qla2x00_device_reset(scsi_qla_host_t *ha, fc_port_t *reset_fcport)
1057 {
1058 /* Abort Target command will clear Reservation */
1059 return ha->isp_ops.abort_target(reset_fcport);
1060 }
1061
1062 static int
1063 qla2xxx_slave_alloc(struct scsi_device *sdev)
1064 {
1065 struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1066
1067 if (!rport || fc_remote_port_chkready(rport))
1068 return -ENXIO;
1069
1070 sdev->hostdata = *(fc_port_t **)rport->dd_data;
1071
1072 return 0;
1073 }
1074
1075 static int
1076 qla2xxx_slave_configure(struct scsi_device *sdev)
1077 {
1078 scsi_qla_host_t *ha = to_qla_host(sdev->host);
1079 struct fc_rport *rport = starget_to_rport(sdev->sdev_target);
1080
1081 if (sdev->tagged_supported)
1082 scsi_activate_tcq(sdev, 32);
1083 else
1084 scsi_deactivate_tcq(sdev, 32);
1085
1086 rport->dev_loss_tmo = ha->port_down_retry_count + 5;
1087
1088 return 0;
1089 }
1090
1091 static void
1092 qla2xxx_slave_destroy(struct scsi_device *sdev)
1093 {
1094 sdev->hostdata = NULL;
1095 }
1096
1097 static int
1098 qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth)
1099 {
1100 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1101 return sdev->queue_depth;
1102 }
1103
1104 static int
1105 qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1106 {
1107 if (sdev->tagged_supported) {
1108 scsi_set_tag_type(sdev, tag_type);
1109 if (tag_type)
1110 scsi_activate_tcq(sdev, sdev->queue_depth);
1111 else
1112 scsi_deactivate_tcq(sdev, sdev->queue_depth);
1113 } else
1114 tag_type = 0;
1115
1116 return tag_type;
1117 }
1118
1119 /**
1120 * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1121 * @ha: HA context
1122 *
1123 * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1124 * supported addressing method.
1125 */
1126 static void
1127 qla2x00_config_dma_addressing(scsi_qla_host_t *ha)
1128 {
1129 /* Assume a 32bit DMA mask. */
1130 ha->flags.enable_64bit_addressing = 0;
1131
1132 if (!dma_set_mask(&ha->pdev->dev, DMA_64BIT_MASK)) {
1133 /* Any upper-dword bits set? */
1134 if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1135 !pci_set_consistent_dma_mask(ha->pdev, DMA_64BIT_MASK)) {
1136 /* Ok, a 64bit DMA mask is applicable. */
1137 ha->flags.enable_64bit_addressing = 1;
1138 ha->isp_ops.calc_req_entries = qla2x00_calc_iocbs_64;
1139 ha->isp_ops.build_iocbs = qla2x00_build_scsi_iocbs_64;
1140 return;
1141 }
1142 }
1143
1144 dma_set_mask(&ha->pdev->dev, DMA_32BIT_MASK);
1145 pci_set_consistent_dma_mask(ha->pdev, DMA_32BIT_MASK);
1146 }
1147
1148 static inline void
1149 qla2x00_set_isp_flags(scsi_qla_host_t *ha)
1150 {
1151 ha->device_type = DT_EXTENDED_IDS;
1152 switch (ha->pdev->device) {
1153 case PCI_DEVICE_ID_QLOGIC_ISP2100:
1154 ha->device_type |= DT_ISP2100;
1155 ha->device_type &= ~DT_EXTENDED_IDS;
1156 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1157 break;
1158 case PCI_DEVICE_ID_QLOGIC_ISP2200:
1159 ha->device_type |= DT_ISP2200;
1160 ha->device_type &= ~DT_EXTENDED_IDS;
1161 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1162 break;
1163 case PCI_DEVICE_ID_QLOGIC_ISP2300:
1164 ha->device_type |= DT_ISP2300;
1165 ha->device_type |= DT_ZIO_SUPPORTED;
1166 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1167 break;
1168 case PCI_DEVICE_ID_QLOGIC_ISP2312:
1169 ha->device_type |= DT_ISP2312;
1170 ha->device_type |= DT_ZIO_SUPPORTED;
1171 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1172 break;
1173 case PCI_DEVICE_ID_QLOGIC_ISP2322:
1174 ha->device_type |= DT_ISP2322;
1175 ha->device_type |= DT_ZIO_SUPPORTED;
1176 if (ha->pdev->subsystem_vendor == 0x1028 &&
1177 ha->pdev->subsystem_device == 0x0170)
1178 ha->device_type |= DT_OEM_001;
1179 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1180 break;
1181 case PCI_DEVICE_ID_QLOGIC_ISP6312:
1182 ha->device_type |= DT_ISP6312;
1183 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1184 break;
1185 case PCI_DEVICE_ID_QLOGIC_ISP6322:
1186 ha->device_type |= DT_ISP6322;
1187 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1188 break;
1189 case PCI_DEVICE_ID_QLOGIC_ISP2422:
1190 ha->device_type |= DT_ISP2422;
1191 ha->device_type |= DT_ZIO_SUPPORTED;
1192 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1193 break;
1194 case PCI_DEVICE_ID_QLOGIC_ISP2432:
1195 ha->device_type |= DT_ISP2432;
1196 ha->device_type |= DT_ZIO_SUPPORTED;
1197 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1198 break;
1199 case PCI_DEVICE_ID_QLOGIC_ISP5422:
1200 ha->device_type |= DT_ISP5422;
1201 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1202 break;
1203 case PCI_DEVICE_ID_QLOGIC_ISP5432:
1204 ha->device_type |= DT_ISP5432;
1205 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1206 break;
1207 }
1208 }
1209
1210 static int
1211 qla2x00_iospace_config(scsi_qla_host_t *ha)
1212 {
1213 unsigned long pio, pio_len, pio_flags;
1214 unsigned long mmio, mmio_len, mmio_flags;
1215
1216 /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1217 pio = pci_resource_start(ha->pdev, 0);
1218 pio_len = pci_resource_len(ha->pdev, 0);
1219 pio_flags = pci_resource_flags(ha->pdev, 0);
1220 if (pio_flags & IORESOURCE_IO) {
1221 if (pio_len < MIN_IOBASE_LEN) {
1222 qla_printk(KERN_WARNING, ha,
1223 "Invalid PCI I/O region size (%s)...\n",
1224 pci_name(ha->pdev));
1225 pio = 0;
1226 }
1227 } else {
1228 qla_printk(KERN_WARNING, ha,
1229 "region #0 not a PIO resource (%s)...\n",
1230 pci_name(ha->pdev));
1231 pio = 0;
1232 }
1233
1234 /* Use MMIO operations for all accesses. */
1235 mmio = pci_resource_start(ha->pdev, 1);
1236 mmio_len = pci_resource_len(ha->pdev, 1);
1237 mmio_flags = pci_resource_flags(ha->pdev, 1);
1238
1239 if (!(mmio_flags & IORESOURCE_MEM)) {
1240 qla_printk(KERN_ERR, ha,
1241 "region #0 not an MMIO resource (%s), aborting\n",
1242 pci_name(ha->pdev));
1243 goto iospace_error_exit;
1244 }
1245 if (mmio_len < MIN_IOBASE_LEN) {
1246 qla_printk(KERN_ERR, ha,
1247 "Invalid PCI mem region size (%s), aborting\n",
1248 pci_name(ha->pdev));
1249 goto iospace_error_exit;
1250 }
1251
1252 if (pci_request_regions(ha->pdev, QLA2XXX_DRIVER_NAME)) {
1253 qla_printk(KERN_WARNING, ha,
1254 "Failed to reserve PIO/MMIO regions (%s)\n",
1255 pci_name(ha->pdev));
1256
1257 goto iospace_error_exit;
1258 }
1259
1260 ha->pio_address = pio;
1261 ha->pio_length = pio_len;
1262 ha->iobase = ioremap(mmio, MIN_IOBASE_LEN);
1263 if (!ha->iobase) {
1264 qla_printk(KERN_ERR, ha,
1265 "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
1266
1267 goto iospace_error_exit;
1268 }
1269
1270 return (0);
1271
1272 iospace_error_exit:
1273 return (-ENOMEM);
1274 }
1275
1276 static void
1277 qla2x00_enable_intrs(scsi_qla_host_t *ha)
1278 {
1279 unsigned long flags = 0;
1280 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1281
1282 spin_lock_irqsave(&ha->hardware_lock, flags);
1283 ha->interrupts_on = 1;
1284 /* enable risc and host interrupts */
1285 WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1286 RD_REG_WORD(&reg->ictrl);
1287 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1288
1289 }
1290
1291 static void
1292 qla2x00_disable_intrs(scsi_qla_host_t *ha)
1293 {
1294 unsigned long flags = 0;
1295 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1296
1297 spin_lock_irqsave(&ha->hardware_lock, flags);
1298 ha->interrupts_on = 0;
1299 /* disable risc and host interrupts */
1300 WRT_REG_WORD(&reg->ictrl, 0);
1301 RD_REG_WORD(&reg->ictrl);
1302 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1303 }
1304
1305 static void
1306 qla24xx_enable_intrs(scsi_qla_host_t *ha)
1307 {
1308 unsigned long flags = 0;
1309 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1310
1311 spin_lock_irqsave(&ha->hardware_lock, flags);
1312 ha->interrupts_on = 1;
1313 WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1314 RD_REG_DWORD(&reg->ictrl);
1315 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1316 }
1317
1318 static void
1319 qla24xx_disable_intrs(scsi_qla_host_t *ha)
1320 {
1321 unsigned long flags = 0;
1322 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1323
1324 spin_lock_irqsave(&ha->hardware_lock, flags);
1325 ha->interrupts_on = 0;
1326 WRT_REG_DWORD(&reg->ictrl, 0);
1327 RD_REG_DWORD(&reg->ictrl);
1328 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1329 }
1330
1331 /*
1332 * PCI driver interface
1333 */
1334 static int __devinit
1335 qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
1336 {
1337 int ret = -ENODEV;
1338 device_reg_t __iomem *reg;
1339 struct Scsi_Host *host;
1340 scsi_qla_host_t *ha;
1341 unsigned long flags = 0;
1342 unsigned long wait_switch = 0;
1343 char pci_info[20];
1344 char fw_str[30];
1345 fc_port_t *fcport;
1346 struct scsi_host_template *sht;
1347
1348 if (pci_enable_device(pdev))
1349 goto probe_out;
1350
1351 sht = &qla2x00_driver_template;
1352 if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
1353 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432)
1354 sht = &qla24xx_driver_template;
1355 host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
1356 if (host == NULL) {
1357 printk(KERN_WARNING
1358 "qla2xxx: Couldn't allocate host from scsi layer!\n");
1359 goto probe_disable_device;
1360 }
1361
1362 /* Clear our data area */
1363 ha = (scsi_qla_host_t *)host->hostdata;
1364 memset(ha, 0, sizeof(scsi_qla_host_t));
1365
1366 ha->pdev = pdev;
1367 ha->host = host;
1368 ha->host_no = host->host_no;
1369 sprintf(ha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, ha->host_no);
1370
1371 /* Set ISP-type information. */
1372 qla2x00_set_isp_flags(ha);
1373
1374 /* Configure PCI I/O space */
1375 ret = qla2x00_iospace_config(ha);
1376 if (ret)
1377 goto probe_failed;
1378
1379 qla_printk(KERN_INFO, ha,
1380 "Found an ISP%04X, irq %d, iobase 0x%p\n", pdev->device, pdev->irq,
1381 ha->iobase);
1382
1383 spin_lock_init(&ha->hardware_lock);
1384
1385 ha->prev_topology = 0;
1386 ha->init_cb_size = sizeof(init_cb_t);
1387 ha->mgmt_svr_loop_id = MANAGEMENT_SERVER;
1388 ha->link_data_rate = LDR_UNKNOWN;
1389 ha->optrom_size = OPTROM_SIZE_2300;
1390
1391 /* Assign ISP specific operations. */
1392 ha->isp_ops.pci_config = qla2100_pci_config;
1393 ha->isp_ops.reset_chip = qla2x00_reset_chip;
1394 ha->isp_ops.chip_diag = qla2x00_chip_diag;
1395 ha->isp_ops.config_rings = qla2x00_config_rings;
1396 ha->isp_ops.reset_adapter = qla2x00_reset_adapter;
1397 ha->isp_ops.nvram_config = qla2x00_nvram_config;
1398 ha->isp_ops.update_fw_options = qla2x00_update_fw_options;
1399 ha->isp_ops.load_risc = qla2x00_load_risc;
1400 ha->isp_ops.pci_info_str = qla2x00_pci_info_str;
1401 ha->isp_ops.fw_version_str = qla2x00_fw_version_str;
1402 ha->isp_ops.intr_handler = qla2100_intr_handler;
1403 ha->isp_ops.enable_intrs = qla2x00_enable_intrs;
1404 ha->isp_ops.disable_intrs = qla2x00_disable_intrs;
1405 ha->isp_ops.abort_command = qla2x00_abort_command;
1406 ha->isp_ops.abort_target = qla2x00_abort_target;
1407 ha->isp_ops.fabric_login = qla2x00_login_fabric;
1408 ha->isp_ops.fabric_logout = qla2x00_fabric_logout;
1409 ha->isp_ops.calc_req_entries = qla2x00_calc_iocbs_32;
1410 ha->isp_ops.build_iocbs = qla2x00_build_scsi_iocbs_32;
1411 ha->isp_ops.prep_ms_iocb = qla2x00_prep_ms_iocb;
1412 ha->isp_ops.prep_ms_fdmi_iocb = qla2x00_prep_ms_fdmi_iocb;
1413 ha->isp_ops.read_nvram = qla2x00_read_nvram_data;
1414 ha->isp_ops.write_nvram = qla2x00_write_nvram_data;
1415 ha->isp_ops.fw_dump = qla2100_fw_dump;
1416 ha->isp_ops.read_optrom = qla2x00_read_optrom_data;
1417 ha->isp_ops.write_optrom = qla2x00_write_optrom_data;
1418 if (IS_QLA2100(ha)) {
1419 host->max_id = MAX_TARGETS_2100;
1420 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
1421 ha->request_q_length = REQUEST_ENTRY_CNT_2100;
1422 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1423 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1424 host->sg_tablesize = 32;
1425 ha->gid_list_info_size = 4;
1426 } else if (IS_QLA2200(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_2100;
1431 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1432 ha->gid_list_info_size = 4;
1433 } else if (IS_QLA23XX(ha)) {
1434 host->max_id = MAX_TARGETS_2200;
1435 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1436 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1437 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1438 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1439 ha->isp_ops.pci_config = qla2300_pci_config;
1440 ha->isp_ops.intr_handler = qla2300_intr_handler;
1441 ha->isp_ops.fw_dump = qla2300_fw_dump;
1442 ha->isp_ops.beacon_on = qla2x00_beacon_on;
1443 ha->isp_ops.beacon_off = qla2x00_beacon_off;
1444 ha->isp_ops.beacon_blink = qla2x00_beacon_blink;
1445 ha->gid_list_info_size = 6;
1446 if (IS_QLA2322(ha) || IS_QLA6322(ha))
1447 ha->optrom_size = OPTROM_SIZE_2322;
1448 } else if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
1449 host->max_id = MAX_TARGETS_2200;
1450 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1451 ha->request_q_length = REQUEST_ENTRY_CNT_24XX;
1452 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1453 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1454 ha->init_cb_size = sizeof(struct init_cb_24xx);
1455 ha->mgmt_svr_loop_id = 10;
1456 ha->isp_ops.pci_config = qla24xx_pci_config;
1457 ha->isp_ops.reset_chip = qla24xx_reset_chip;
1458 ha->isp_ops.chip_diag = qla24xx_chip_diag;
1459 ha->isp_ops.config_rings = qla24xx_config_rings;
1460 ha->isp_ops.reset_adapter = qla24xx_reset_adapter;
1461 ha->isp_ops.nvram_config = qla24xx_nvram_config;
1462 ha->isp_ops.update_fw_options = qla24xx_update_fw_options;
1463 ha->isp_ops.load_risc = qla24xx_load_risc;
1464 ha->isp_ops.pci_info_str = qla24xx_pci_info_str;
1465 ha->isp_ops.fw_version_str = qla24xx_fw_version_str;
1466 ha->isp_ops.intr_handler = qla24xx_intr_handler;
1467 ha->isp_ops.enable_intrs = qla24xx_enable_intrs;
1468 ha->isp_ops.disable_intrs = qla24xx_disable_intrs;
1469 ha->isp_ops.abort_command = qla24xx_abort_command;
1470 ha->isp_ops.abort_target = qla24xx_abort_target;
1471 ha->isp_ops.fabric_login = qla24xx_login_fabric;
1472 ha->isp_ops.fabric_logout = qla24xx_fabric_logout;
1473 ha->isp_ops.prep_ms_iocb = qla24xx_prep_ms_iocb;
1474 ha->isp_ops.prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb;
1475 ha->isp_ops.read_nvram = qla24xx_read_nvram_data;
1476 ha->isp_ops.write_nvram = qla24xx_write_nvram_data;
1477 ha->isp_ops.fw_dump = qla24xx_fw_dump;
1478 ha->isp_ops.read_optrom = qla24xx_read_optrom_data;
1479 ha->isp_ops.write_optrom = qla24xx_write_optrom_data;
1480 ha->isp_ops.beacon_on = qla24xx_beacon_on;
1481 ha->isp_ops.beacon_off = qla24xx_beacon_off;
1482 ha->isp_ops.beacon_blink = qla24xx_beacon_blink;
1483 ha->gid_list_info_size = 8;
1484 ha->optrom_size = OPTROM_SIZE_24XX;
1485 }
1486 host->can_queue = ha->request_q_length + 128;
1487
1488 /* load the F/W, read paramaters, and init the H/W */
1489 ha->instance = num_hosts;
1490
1491 init_MUTEX(&ha->mbx_cmd_sem);
1492 init_MUTEX_LOCKED(&ha->mbx_intr_sem);
1493
1494 INIT_LIST_HEAD(&ha->list);
1495 INIT_LIST_HEAD(&ha->fcports);
1496
1497 /*
1498 * These locks are used to prevent more than one CPU
1499 * from modifying the queue at the same time. The
1500 * higher level "host_lock" will reduce most
1501 * contention for these locks.
1502 */
1503 spin_lock_init(&ha->mbx_reg_lock);
1504
1505 qla2x00_config_dma_addressing(ha);
1506 if (qla2x00_mem_alloc(ha)) {
1507 qla_printk(KERN_WARNING, ha,
1508 "[ERROR] Failed to allocate memory for adapter\n");
1509
1510 ret = -ENOMEM;
1511 goto probe_failed;
1512 }
1513
1514 if (qla2x00_initialize_adapter(ha) &&
1515 !(ha->device_flags & DFLG_NO_CABLE)) {
1516
1517 qla_printk(KERN_WARNING, ha,
1518 "Failed to initialize adapter\n");
1519
1520 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
1521 "Adapter flags %x.\n",
1522 ha->host_no, ha->device_flags));
1523
1524 ret = -ENODEV;
1525 goto probe_failed;
1526 }
1527
1528 /*
1529 * Startup the kernel thread for this host adapter
1530 */
1531 ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
1532 "%s_dpc", ha->host_str);
1533 if (IS_ERR(ha->dpc_thread)) {
1534 qla_printk(KERN_WARNING, ha,
1535 "Unable to start DPC thread!\n");
1536 ret = PTR_ERR(ha->dpc_thread);
1537 goto probe_failed;
1538 }
1539
1540 host->this_id = 255;
1541 host->cmd_per_lun = 3;
1542 host->unique_id = ha->instance;
1543 host->max_cmd_len = MAX_CMDSZ;
1544 host->max_channel = MAX_BUSES - 1;
1545 host->max_lun = MAX_LUNS;
1546 host->transportt = qla2xxx_transport_template;
1547
1548 ret = request_irq(pdev->irq, ha->isp_ops.intr_handler,
1549 IRQF_DISABLED|IRQF_SHARED, QLA2XXX_DRIVER_NAME, ha);
1550 if (ret) {
1551 qla_printk(KERN_WARNING, ha,
1552 "Failed to reserve interrupt %d already in use.\n",
1553 pdev->irq);
1554 goto probe_failed;
1555 }
1556 host->irq = pdev->irq;
1557
1558 /* Initialized the timer */
1559 qla2x00_start_timer(ha, qla2x00_timer, WATCH_INTERVAL);
1560
1561 DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
1562 ha->host_no, ha));
1563
1564 ha->isp_ops.disable_intrs(ha);
1565
1566 spin_lock_irqsave(&ha->hardware_lock, flags);
1567 reg = ha->iobase;
1568 if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
1569 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_HOST_INT);
1570 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_RISC_INT);
1571 } else {
1572 WRT_REG_WORD(&reg->isp.semaphore, 0);
1573 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_RISC_INT);
1574 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_HOST_INT);
1575
1576 /* Enable proper parity */
1577 if (!IS_QLA2100(ha) && !IS_QLA2200(ha)) {
1578 if (IS_QLA2300(ha))
1579 /* SRAM parity */
1580 WRT_REG_WORD(&reg->isp.hccr,
1581 (HCCR_ENABLE_PARITY + 0x1));
1582 else
1583 /* SRAM, Instruction RAM and GP RAM parity */
1584 WRT_REG_WORD(&reg->isp.hccr,
1585 (HCCR_ENABLE_PARITY + 0x7));
1586 }
1587 }
1588 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1589
1590 ha->isp_ops.enable_intrs(ha);
1591
1592 /* v2.19.5b6 */
1593 /*
1594 * Wait around max loop_reset_delay secs for the devices to come
1595 * on-line. We don't want Linux scanning before we are ready.
1596 *
1597 */
1598 for (wait_switch = jiffies + (ha->loop_reset_delay * HZ);
1599 time_before(jiffies,wait_switch) &&
1600 !(ha->device_flags & (DFLG_NO_CABLE | DFLG_FABRIC_DEVICES))
1601 && (ha->device_flags & SWITCH_FOUND) ;) {
1602
1603 qla2x00_check_fabric_devices(ha);
1604
1605 msleep(10);
1606 }
1607
1608 pci_set_drvdata(pdev, ha);
1609 ha->flags.init_done = 1;
1610 num_hosts++;
1611
1612 ret = scsi_add_host(host, &pdev->dev);
1613 if (ret)
1614 goto probe_failed;
1615
1616 qla2x00_alloc_sysfs_attr(ha);
1617
1618 qla2x00_init_host_attr(ha);
1619
1620 qla_printk(KERN_INFO, ha, "\n"
1621 " QLogic Fibre Channel HBA Driver: %s\n"
1622 " QLogic %s - %s\n"
1623 " ISP%04X: %s @ %s hdma%c, host#=%ld, fw=%s\n",
1624 qla2x00_version_str, ha->model_number,
1625 ha->model_desc ? ha->model_desc: "", pdev->device,
1626 ha->isp_ops.pci_info_str(ha, pci_info), pci_name(pdev),
1627 ha->flags.enable_64bit_addressing ? '+': '-', ha->host_no,
1628 ha->isp_ops.fw_version_str(ha, fw_str));
1629
1630 /* Go with fc_rport registration. */
1631 list_for_each_entry(fcport, &ha->fcports, list)
1632 qla2x00_reg_remote_port(ha, fcport);
1633
1634 return 0;
1635
1636 probe_failed:
1637 qla2x00_free_device(ha);
1638
1639 scsi_host_put(host);
1640
1641 probe_disable_device:
1642 pci_disable_device(pdev);
1643
1644 probe_out:
1645 return ret;
1646 }
1647
1648 static void __devexit
1649 qla2x00_remove_one(struct pci_dev *pdev)
1650 {
1651 scsi_qla_host_t *ha;
1652
1653 ha = pci_get_drvdata(pdev);
1654
1655 qla2x00_free_sysfs_attr(ha);
1656
1657 fc_remove_host(ha->host);
1658
1659 scsi_remove_host(ha->host);
1660
1661 qla2x00_free_device(ha);
1662
1663 scsi_host_put(ha->host);
1664
1665 pci_set_drvdata(pdev, NULL);
1666 }
1667
1668 static void
1669 qla2x00_free_device(scsi_qla_host_t *ha)
1670 {
1671 /* Disable timer */
1672 if (ha->timer_active)
1673 qla2x00_stop_timer(ha);
1674
1675 /* Kill the kernel thread for this host */
1676 if (ha->dpc_thread) {
1677 struct task_struct *t = ha->dpc_thread;
1678
1679 /*
1680 * qla2xxx_wake_dpc checks for ->dpc_thread
1681 * so we need to zero it out.
1682 */
1683 ha->dpc_thread = NULL;
1684 kthread_stop(t);
1685 }
1686
1687 if (ha->eft)
1688 qla2x00_trace_control(ha, TC_DISABLE, 0, 0);
1689
1690 /* Stop currently executing firmware. */
1691 qla2x00_stop_firmware(ha);
1692
1693 /* turn-off interrupts on the card */
1694 if (ha->interrupts_on)
1695 ha->isp_ops.disable_intrs(ha);
1696
1697 qla2x00_mem_free(ha);
1698
1699 ha->flags.online = 0;
1700
1701 /* Detach interrupts */
1702 if (ha->host->irq)
1703 free_irq(ha->host->irq, ha);
1704
1705 /* release io space registers */
1706 if (ha->iobase)
1707 iounmap(ha->iobase);
1708 pci_release_regions(ha->pdev);
1709
1710 pci_disable_device(ha->pdev);
1711 }
1712
1713 static inline void
1714 qla2x00_schedule_rport_del(struct scsi_qla_host *ha, fc_port_t *fcport,
1715 int defer)
1716 {
1717 unsigned long flags;
1718 struct fc_rport *rport;
1719
1720 if (!fcport->rport)
1721 return;
1722
1723 rport = fcport->rport;
1724 if (defer) {
1725 spin_lock_irqsave(&fcport->rport_lock, flags);
1726 fcport->drport = rport;
1727 fcport->rport = NULL;
1728 *(fc_port_t **)rport->dd_data = NULL;
1729 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1730 set_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags);
1731 } else {
1732 spin_lock_irqsave(&fcport->rport_lock, flags);
1733 fcport->rport = NULL;
1734 *(fc_port_t **)rport->dd_data = NULL;
1735 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1736 fc_remote_port_delete(rport);
1737 }
1738 }
1739
1740 /*
1741 * qla2x00_mark_device_lost Updates fcport state when device goes offline.
1742 *
1743 * Input: ha = adapter block pointer. fcport = port structure pointer.
1744 *
1745 * Return: None.
1746 *
1747 * Context:
1748 */
1749 void qla2x00_mark_device_lost(scsi_qla_host_t *ha, fc_port_t *fcport,
1750 int do_login, int defer)
1751 {
1752 if (atomic_read(&fcport->state) == FCS_ONLINE)
1753 qla2x00_schedule_rport_del(ha, fcport, defer);
1754
1755 /*
1756 * We may need to retry the login, so don't change the state of the
1757 * port but do the retries.
1758 */
1759 if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
1760 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1761
1762 if (!do_login)
1763 return;
1764
1765 if (fcport->login_retry == 0) {
1766 fcport->login_retry = ha->login_retry_count;
1767 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
1768
1769 DEBUG(printk("scsi(%ld): Port login retry: "
1770 "%02x%02x%02x%02x%02x%02x%02x%02x, "
1771 "id = 0x%04x retry cnt=%d\n",
1772 ha->host_no,
1773 fcport->port_name[0],
1774 fcport->port_name[1],
1775 fcport->port_name[2],
1776 fcport->port_name[3],
1777 fcport->port_name[4],
1778 fcport->port_name[5],
1779 fcport->port_name[6],
1780 fcport->port_name[7],
1781 fcport->loop_id,
1782 fcport->login_retry));
1783 }
1784 }
1785
1786 /*
1787 * qla2x00_mark_all_devices_lost
1788 * Updates fcport state when device goes offline.
1789 *
1790 * Input:
1791 * ha = adapter block pointer.
1792 * fcport = port structure pointer.
1793 *
1794 * Return:
1795 * None.
1796 *
1797 * Context:
1798 */
1799 void
1800 qla2x00_mark_all_devices_lost(scsi_qla_host_t *ha, int defer)
1801 {
1802 fc_port_t *fcport;
1803
1804 list_for_each_entry(fcport, &ha->fcports, list) {
1805 if (fcport->port_type != FCT_TARGET)
1806 continue;
1807
1808 /*
1809 * No point in marking the device as lost, if the device is
1810 * already DEAD.
1811 */
1812 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
1813 continue;
1814 if (atomic_read(&fcport->state) == FCS_ONLINE)
1815 qla2x00_schedule_rport_del(ha, fcport, defer);
1816 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1817 }
1818
1819 if (defer)
1820 qla2xxx_wake_dpc(ha);
1821 }
1822
1823 /*
1824 * qla2x00_mem_alloc
1825 * Allocates adapter memory.
1826 *
1827 * Returns:
1828 * 0 = success.
1829 * 1 = failure.
1830 */
1831 static uint8_t
1832 qla2x00_mem_alloc(scsi_qla_host_t *ha)
1833 {
1834 char name[16];
1835 uint8_t status = 1;
1836 int retry= 10;
1837
1838 do {
1839 /*
1840 * This will loop only once if everything goes well, else some
1841 * number of retries will be performed to get around a kernel
1842 * bug where available mem is not allocated until after a
1843 * little delay and a retry.
1844 */
1845 ha->request_ring = dma_alloc_coherent(&ha->pdev->dev,
1846 (ha->request_q_length + 1) * sizeof(request_t),
1847 &ha->request_dma, GFP_KERNEL);
1848 if (ha->request_ring == NULL) {
1849 qla_printk(KERN_WARNING, ha,
1850 "Memory Allocation failed - request_ring\n");
1851
1852 qla2x00_mem_free(ha);
1853 msleep(100);
1854
1855 continue;
1856 }
1857
1858 ha->response_ring = dma_alloc_coherent(&ha->pdev->dev,
1859 (ha->response_q_length + 1) * sizeof(response_t),
1860 &ha->response_dma, GFP_KERNEL);
1861 if (ha->response_ring == NULL) {
1862 qla_printk(KERN_WARNING, ha,
1863 "Memory Allocation failed - response_ring\n");
1864
1865 qla2x00_mem_free(ha);
1866 msleep(100);
1867
1868 continue;
1869 }
1870
1871 ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
1872 &ha->gid_list_dma, GFP_KERNEL);
1873 if (ha->gid_list == NULL) {
1874 qla_printk(KERN_WARNING, ha,
1875 "Memory Allocation failed - gid_list\n");
1876
1877 qla2x00_mem_free(ha);
1878 msleep(100);
1879
1880 continue;
1881 }
1882
1883 snprintf(name, sizeof(name), "%s_%ld", QLA2XXX_DRIVER_NAME,
1884 ha->host_no);
1885 ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
1886 DMA_POOL_SIZE, 8, 0);
1887 if (ha->s_dma_pool == NULL) {
1888 qla_printk(KERN_WARNING, ha,
1889 "Memory Allocation failed - s_dma_pool\n");
1890
1891 qla2x00_mem_free(ha);
1892 msleep(100);
1893
1894 continue;
1895 }
1896
1897 /* get consistent memory allocated for init control block */
1898 ha->init_cb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
1899 &ha->init_cb_dma);
1900 if (ha->init_cb == NULL) {
1901 qla_printk(KERN_WARNING, ha,
1902 "Memory Allocation failed - init_cb\n");
1903
1904 qla2x00_mem_free(ha);
1905 msleep(100);
1906
1907 continue;
1908 }
1909 memset(ha->init_cb, 0, ha->init_cb_size);
1910
1911 if (qla2x00_allocate_sp_pool(ha)) {
1912 qla_printk(KERN_WARNING, ha,
1913 "Memory Allocation failed - "
1914 "qla2x00_allocate_sp_pool()\n");
1915
1916 qla2x00_mem_free(ha);
1917 msleep(100);
1918
1919 continue;
1920 }
1921
1922 /* Allocate memory for SNS commands */
1923 if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
1924 /* Get consistent memory allocated for SNS commands */
1925 ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
1926 sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma,
1927 GFP_KERNEL);
1928 if (ha->sns_cmd == NULL) {
1929 /* error */
1930 qla_printk(KERN_WARNING, ha,
1931 "Memory Allocation failed - sns_cmd\n");
1932
1933 qla2x00_mem_free(ha);
1934 msleep(100);
1935
1936 continue;
1937 }
1938 memset(ha->sns_cmd, 0, sizeof(struct sns_cmd_pkt));
1939 } else {
1940 /* Get consistent memory allocated for MS IOCB */
1941 ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
1942 &ha->ms_iocb_dma);
1943 if (ha->ms_iocb == NULL) {
1944 /* error */
1945 qla_printk(KERN_WARNING, ha,
1946 "Memory Allocation failed - ms_iocb\n");
1947
1948 qla2x00_mem_free(ha);
1949 msleep(100);
1950
1951 continue;
1952 }
1953 memset(ha->ms_iocb, 0, sizeof(ms_iocb_entry_t));
1954
1955 /*
1956 * Get consistent memory allocated for CT SNS
1957 * commands
1958 */
1959 ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
1960 sizeof(struct ct_sns_pkt), &ha->ct_sns_dma,
1961 GFP_KERNEL);
1962 if (ha->ct_sns == NULL) {
1963 /* error */
1964 qla_printk(KERN_WARNING, ha,
1965 "Memory Allocation failed - ct_sns\n");
1966
1967 qla2x00_mem_free(ha);
1968 msleep(100);
1969
1970 continue;
1971 }
1972 memset(ha->ct_sns, 0, sizeof(struct ct_sns_pkt));
1973
1974 if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
1975 /*
1976 * Get consistent memory allocated for SFP
1977 * block.
1978 */
1979 ha->sfp_data = dma_pool_alloc(ha->s_dma_pool,
1980 GFP_KERNEL, &ha->sfp_data_dma);
1981 if (ha->sfp_data == NULL) {
1982 qla_printk(KERN_WARNING, ha,
1983 "Memory Allocation failed - "
1984 "sfp_data\n");
1985
1986 qla2x00_mem_free(ha);
1987 msleep(100);
1988
1989 continue;
1990 }
1991 memset(ha->sfp_data, 0, SFP_BLOCK_SIZE);
1992 }
1993 }
1994
1995 /* Done all allocations without any error. */
1996 status = 0;
1997
1998 } while (retry-- && status != 0);
1999
2000 if (status) {
2001 printk(KERN_WARNING
2002 "%s(): **** FAILED ****\n", __func__);
2003 }
2004
2005 return(status);
2006 }
2007
2008 /*
2009 * qla2x00_mem_free
2010 * Frees all adapter allocated memory.
2011 *
2012 * Input:
2013 * ha = adapter block pointer.
2014 */
2015 static void
2016 qla2x00_mem_free(scsi_qla_host_t *ha)
2017 {
2018 struct list_head *fcpl, *fcptemp;
2019 fc_port_t *fcport;
2020
2021 if (ha == NULL) {
2022 /* error */
2023 DEBUG2(printk("%s(): ERROR invalid ha pointer.\n", __func__));
2024 return;
2025 }
2026
2027 /* free sp pool */
2028 qla2x00_free_sp_pool(ha);
2029
2030 if (ha->fw_dump) {
2031 if (ha->eft)
2032 dma_free_coherent(&ha->pdev->dev,
2033 ntohl(ha->fw_dump->eft_size), ha->eft, ha->eft_dma);
2034 vfree(ha->fw_dump);
2035 }
2036
2037 if (ha->sns_cmd)
2038 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
2039 ha->sns_cmd, ha->sns_cmd_dma);
2040
2041 if (ha->ct_sns)
2042 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2043 ha->ct_sns, ha->ct_sns_dma);
2044
2045 if (ha->sfp_data)
2046 dma_pool_free(ha->s_dma_pool, ha->sfp_data, ha->sfp_data_dma);
2047
2048 if (ha->ms_iocb)
2049 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2050
2051 if (ha->init_cb)
2052 dma_pool_free(ha->s_dma_pool, ha->init_cb, ha->init_cb_dma);
2053
2054 if (ha->s_dma_pool)
2055 dma_pool_destroy(ha->s_dma_pool);
2056
2057 if (ha->gid_list)
2058 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2059 ha->gid_list_dma);
2060
2061 if (ha->response_ring)
2062 dma_free_coherent(&ha->pdev->dev,
2063 (ha->response_q_length + 1) * sizeof(response_t),
2064 ha->response_ring, ha->response_dma);
2065
2066 if (ha->request_ring)
2067 dma_free_coherent(&ha->pdev->dev,
2068 (ha->request_q_length + 1) * sizeof(request_t),
2069 ha->request_ring, ha->request_dma);
2070
2071 ha->eft = NULL;
2072 ha->eft_dma = 0;
2073 ha->sns_cmd = NULL;
2074 ha->sns_cmd_dma = 0;
2075 ha->ct_sns = NULL;
2076 ha->ct_sns_dma = 0;
2077 ha->ms_iocb = NULL;
2078 ha->ms_iocb_dma = 0;
2079 ha->init_cb = NULL;
2080 ha->init_cb_dma = 0;
2081
2082 ha->s_dma_pool = NULL;
2083
2084 ha->gid_list = NULL;
2085 ha->gid_list_dma = 0;
2086
2087 ha->response_ring = NULL;
2088 ha->response_dma = 0;
2089 ha->request_ring = NULL;
2090 ha->request_dma = 0;
2091
2092 list_for_each_safe(fcpl, fcptemp, &ha->fcports) {
2093 fcport = list_entry(fcpl, fc_port_t, list);
2094
2095 /* fc ports */
2096 list_del_init(&fcport->list);
2097 kfree(fcport);
2098 }
2099 INIT_LIST_HEAD(&ha->fcports);
2100
2101 ha->fw_dump = NULL;
2102 ha->fw_dumped = 0;
2103 ha->fw_dump_reading = 0;
2104
2105 vfree(ha->optrom_buffer);
2106 }
2107
2108 /*
2109 * qla2x00_allocate_sp_pool
2110 * This routine is called during initialization to allocate
2111 * memory for local srb_t.
2112 *
2113 * Input:
2114 * ha = adapter block pointer.
2115 *
2116 * Context:
2117 * Kernel context.
2118 */
2119 static int
2120 qla2x00_allocate_sp_pool(scsi_qla_host_t *ha)
2121 {
2122 int rval;
2123
2124 rval = QLA_SUCCESS;
2125 ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
2126 if (ha->srb_mempool == NULL) {
2127 qla_printk(KERN_INFO, ha, "Unable to allocate SRB mempool.\n");
2128 rval = QLA_FUNCTION_FAILED;
2129 }
2130 return (rval);
2131 }
2132
2133 /*
2134 * This routine frees all adapter allocated memory.
2135 *
2136 */
2137 static void
2138 qla2x00_free_sp_pool( scsi_qla_host_t *ha)
2139 {
2140 if (ha->srb_mempool) {
2141 mempool_destroy(ha->srb_mempool);
2142 ha->srb_mempool = NULL;
2143 }
2144 }
2145
2146 /**************************************************************************
2147 * qla2x00_do_dpc
2148 * This kernel thread is a task that is schedule by the interrupt handler
2149 * to perform the background processing for interrupts.
2150 *
2151 * Notes:
2152 * This task always run in the context of a kernel thread. It
2153 * is kick-off by the driver's detect code and starts up
2154 * up one per adapter. It immediately goes to sleep and waits for
2155 * some fibre event. When either the interrupt handler or
2156 * the timer routine detects a event it will one of the task
2157 * bits then wake us up.
2158 **************************************************************************/
2159 static int
2160 qla2x00_do_dpc(void *data)
2161 {
2162 scsi_qla_host_t *ha;
2163 fc_port_t *fcport;
2164 uint8_t status;
2165 uint16_t next_loopid;
2166
2167 ha = (scsi_qla_host_t *)data;
2168
2169 set_user_nice(current, -20);
2170
2171 while (!kthread_should_stop()) {
2172 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
2173
2174 set_current_state(TASK_INTERRUPTIBLE);
2175 schedule();
2176 __set_current_state(TASK_RUNNING);
2177
2178 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
2179
2180 /* Initialization not yet finished. Don't do anything yet. */
2181 if (!ha->flags.init_done)
2182 continue;
2183
2184 DEBUG3(printk("scsi(%ld): DPC handler\n", ha->host_no));
2185
2186 ha->dpc_active = 1;
2187
2188 if (ha->flags.mbox_busy) {
2189 ha->dpc_active = 0;
2190 continue;
2191 }
2192
2193 if (test_and_clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) {
2194
2195 DEBUG(printk("scsi(%ld): dpc: sched "
2196 "qla2x00_abort_isp ha = %p\n",
2197 ha->host_no, ha));
2198 if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
2199 &ha->dpc_flags))) {
2200
2201 if (qla2x00_abort_isp(ha)) {
2202 /* failed. retry later */
2203 set_bit(ISP_ABORT_NEEDED,
2204 &ha->dpc_flags);
2205 }
2206 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2207 }
2208 DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
2209 ha->host_no));
2210 }
2211
2212 if (test_and_clear_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags))
2213 qla2x00_update_fcports(ha);
2214
2215 if (test_and_clear_bit(LOOP_RESET_NEEDED, &ha->dpc_flags)) {
2216 DEBUG(printk("scsi(%ld): dpc: sched loop_reset()\n",
2217 ha->host_no));
2218 qla2x00_loop_reset(ha);
2219 }
2220
2221 if (test_and_clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) &&
2222 (!(test_and_set_bit(RESET_ACTIVE, &ha->dpc_flags)))) {
2223
2224 DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
2225 ha->host_no));
2226
2227 qla2x00_rst_aen(ha);
2228 clear_bit(RESET_ACTIVE, &ha->dpc_flags);
2229 }
2230
2231 /* Retry each device up to login retry count */
2232 if ((test_and_clear_bit(RELOGIN_NEEDED, &ha->dpc_flags)) &&
2233 !test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) &&
2234 atomic_read(&ha->loop_state) != LOOP_DOWN) {
2235
2236 DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
2237 ha->host_no));
2238
2239 next_loopid = 0;
2240 list_for_each_entry(fcport, &ha->fcports, list) {
2241 /*
2242 * If the port is not ONLINE then try to login
2243 * to it if we haven't run out of retries.
2244 */
2245 if (atomic_read(&fcport->state) != FCS_ONLINE &&
2246 fcport->login_retry) {
2247
2248 fcport->login_retry--;
2249 if (fcport->flags & FCF_FABRIC_DEVICE) {
2250 if (fcport->flags &
2251 FCF_TAPE_PRESENT)
2252 ha->isp_ops.fabric_logout(
2253 ha, fcport->loop_id,
2254 fcport->d_id.b.domain,
2255 fcport->d_id.b.area,
2256 fcport->d_id.b.al_pa);
2257 status = qla2x00_fabric_login(
2258 ha, fcport, &next_loopid);
2259 } else
2260 status =
2261 qla2x00_local_device_login(
2262 ha, fcport);
2263
2264 if (status == QLA_SUCCESS) {
2265 fcport->old_loop_id = fcport->loop_id;
2266
2267 DEBUG(printk("scsi(%ld): port login OK: logged in ID 0x%x\n",
2268 ha->host_no, fcport->loop_id));
2269
2270 qla2x00_update_fcport(ha,
2271 fcport);
2272 } else if (status == 1) {
2273 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
2274 /* retry the login again */
2275 DEBUG(printk("scsi(%ld): Retrying %d login again loop_id 0x%x\n",
2276 ha->host_no,
2277 fcport->login_retry, fcport->loop_id));
2278 } else {
2279 fcport->login_retry = 0;
2280 }
2281 }
2282 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2283 break;
2284 }
2285 DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
2286 ha->host_no));
2287 }
2288
2289 if ((test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags)) &&
2290 atomic_read(&ha->loop_state) != LOOP_DOWN) {
2291
2292 clear_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags);
2293 DEBUG(printk("scsi(%ld): qla2x00_login_retry()\n",
2294 ha->host_no));
2295
2296 set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
2297
2298 DEBUG(printk("scsi(%ld): qla2x00_login_retry - end\n",
2299 ha->host_no));
2300 }
2301
2302 if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
2303
2304 DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
2305 ha->host_no));
2306
2307 if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
2308 &ha->dpc_flags))) {
2309
2310 qla2x00_loop_resync(ha);
2311
2312 clear_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags);
2313 }
2314
2315 DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
2316 ha->host_no));
2317 }
2318
2319 if (test_and_clear_bit(FCPORT_RESCAN_NEEDED, &ha->dpc_flags)) {
2320
2321 DEBUG(printk("scsi(%ld): Rescan flagged fcports...\n",
2322 ha->host_no));
2323
2324 qla2x00_rescan_fcports(ha);
2325
2326 DEBUG(printk("scsi(%ld): Rescan flagged fcports..."
2327 "end.\n",
2328 ha->host_no));
2329 }
2330
2331 if (!ha->interrupts_on)
2332 ha->isp_ops.enable_intrs(ha);
2333
2334 if (test_and_clear_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags))
2335 ha->isp_ops.beacon_blink(ha);
2336
2337 ha->dpc_active = 0;
2338 } /* End of while(1) */
2339
2340 DEBUG(printk("scsi(%ld): DPC handler exiting\n", ha->host_no));
2341
2342 /*
2343 * Make sure that nobody tries to wake us up again.
2344 */
2345 ha->dpc_active = 0;
2346
2347 return 0;
2348 }
2349
2350 void
2351 qla2xxx_wake_dpc(scsi_qla_host_t *ha)
2352 {
2353 if (ha->dpc_thread)
2354 wake_up_process(ha->dpc_thread);
2355 }
2356
2357 /*
2358 * qla2x00_rst_aen
2359 * Processes asynchronous reset.
2360 *
2361 * Input:
2362 * ha = adapter block pointer.
2363 */
2364 static void
2365 qla2x00_rst_aen(scsi_qla_host_t *ha)
2366 {
2367 if (ha->flags.online && !ha->flags.reset_active &&
2368 !atomic_read(&ha->loop_down_timer) &&
2369 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) {
2370 do {
2371 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
2372
2373 /*
2374 * Issue marker command only when we are going to start
2375 * the I/O.
2376 */
2377 ha->marker_needed = 1;
2378 } while (!atomic_read(&ha->loop_down_timer) &&
2379 (test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags)));
2380 }
2381 }
2382
2383 static void
2384 qla2x00_sp_free_dma(scsi_qla_host_t *ha, srb_t *sp)
2385 {
2386 struct scsi_cmnd *cmd = sp->cmd;
2387
2388 if (sp->flags & SRB_DMA_VALID) {
2389 if (cmd->use_sg) {
2390 dma_unmap_sg(&ha->pdev->dev, cmd->request_buffer,
2391 cmd->use_sg, cmd->sc_data_direction);
2392 } else if (cmd->request_bufflen) {
2393 dma_unmap_single(&ha->pdev->dev, sp->dma_handle,
2394 cmd->request_bufflen, cmd->sc_data_direction);
2395 }
2396 sp->flags &= ~SRB_DMA_VALID;
2397 }
2398 CMD_SP(cmd) = NULL;
2399 }
2400
2401 void
2402 qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *sp)
2403 {
2404 struct scsi_cmnd *cmd = sp->cmd;
2405
2406 qla2x00_sp_free_dma(ha, sp);
2407
2408 mempool_free(sp, ha->srb_mempool);
2409
2410 cmd->scsi_done(cmd);
2411 }
2412
2413 /**************************************************************************
2414 * qla2x00_timer
2415 *
2416 * Description:
2417 * One second timer
2418 *
2419 * Context: Interrupt
2420 ***************************************************************************/
2421 static void
2422 qla2x00_timer(scsi_qla_host_t *ha)
2423 {
2424 unsigned long cpu_flags = 0;
2425 fc_port_t *fcport;
2426 int start_dpc = 0;
2427 int index;
2428 srb_t *sp;
2429 int t;
2430
2431 /*
2432 * Ports - Port down timer.
2433 *
2434 * Whenever, a port is in the LOST state we start decrementing its port
2435 * down timer every second until it reaches zero. Once it reaches zero
2436 * the port it marked DEAD.
2437 */
2438 t = 0;
2439 list_for_each_entry(fcport, &ha->fcports, list) {
2440 if (fcport->port_type != FCT_TARGET)
2441 continue;
2442
2443 if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
2444
2445 if (atomic_read(&fcport->port_down_timer) == 0)
2446 continue;
2447
2448 if (atomic_dec_and_test(&fcport->port_down_timer) != 0)
2449 atomic_set(&fcport->state, FCS_DEVICE_DEAD);
2450
2451 DEBUG(printk("scsi(%ld): fcport-%d - port retry count: "
2452 "%d remaining\n",
2453 ha->host_no,
2454 t, atomic_read(&fcport->port_down_timer)));
2455 }
2456 t++;
2457 } /* End of for fcport */
2458
2459
2460 /* Loop down handler. */
2461 if (atomic_read(&ha->loop_down_timer) > 0 &&
2462 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags)) && ha->flags.online) {
2463
2464 if (atomic_read(&ha->loop_down_timer) ==
2465 ha->loop_down_abort_time) {
2466
2467 DEBUG(printk("scsi(%ld): Loop Down - aborting the "
2468 "queues before time expire\n",
2469 ha->host_no));
2470
2471 if (!IS_QLA2100(ha) && ha->link_down_timeout)
2472 atomic_set(&ha->loop_state, LOOP_DEAD);
2473
2474 /* Schedule an ISP abort to return any tape commands. */
2475 spin_lock_irqsave(&ha->hardware_lock, cpu_flags);
2476 for (index = 1; index < MAX_OUTSTANDING_COMMANDS;
2477 index++) {
2478 fc_port_t *sfcp;
2479
2480 sp = ha->outstanding_cmds[index];
2481 if (!sp)
2482 continue;
2483 sfcp = sp->fcport;
2484 if (!(sfcp->flags & FCF_TAPE_PRESENT))
2485 continue;
2486
2487 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2488 break;
2489 }
2490 spin_unlock_irqrestore(&ha->hardware_lock, cpu_flags);
2491
2492 set_bit(ABORT_QUEUES_NEEDED, &ha->dpc_flags);
2493 start_dpc++;
2494 }
2495
2496 /* if the loop has been down for 4 minutes, reinit adapter */
2497 if (atomic_dec_and_test(&ha->loop_down_timer) != 0) {
2498 DEBUG(printk("scsi(%ld): Loop down exceed 4 mins - "
2499 "restarting queues.\n",
2500 ha->host_no));
2501
2502 set_bit(RESTART_QUEUES_NEEDED, &ha->dpc_flags);
2503 start_dpc++;
2504
2505 if (!(ha->device_flags & DFLG_NO_CABLE)) {
2506 DEBUG(printk("scsi(%ld): Loop down - "
2507 "aborting ISP.\n",
2508 ha->host_no));
2509 qla_printk(KERN_WARNING, ha,
2510 "Loop down - aborting ISP.\n");
2511
2512 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2513 }
2514 }
2515 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
2516 ha->host_no,
2517 atomic_read(&ha->loop_down_timer)));
2518 }
2519
2520 /* Check if beacon LED needs to be blinked */
2521 if (ha->beacon_blink_led == 1) {
2522 set_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags);
2523 start_dpc++;
2524 }
2525
2526 /* Schedule the DPC routine if needed */
2527 if ((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags) ||
2528 test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) ||
2529 test_bit(LOOP_RESET_NEEDED, &ha->dpc_flags) ||
2530 test_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags) ||
2531 start_dpc ||
2532 test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags) ||
2533 test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) ||
2534 test_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags) ||
2535 test_bit(RELOGIN_NEEDED, &ha->dpc_flags)))
2536 qla2xxx_wake_dpc(ha);
2537
2538 qla2x00_restart_timer(ha, WATCH_INTERVAL);
2539 }
2540
2541 /* XXX(hch): crude hack to emulate a down_timeout() */
2542 int
2543 qla2x00_down_timeout(struct semaphore *sema, unsigned long timeout)
2544 {
2545 const unsigned int step = 100; /* msecs */
2546 unsigned int iterations = jiffies_to_msecs(timeout)/100;
2547
2548 do {
2549 if (!down_trylock(sema))
2550 return 0;
2551 if (msleep_interruptible(step))
2552 break;
2553 } while (--iterations >= 0);
2554
2555 return -ETIMEDOUT;
2556 }
2557
2558 /* Firmware interface routines. */
2559
2560 #define FW_BLOBS 5
2561 #define FW_ISP21XX 0
2562 #define FW_ISP22XX 1
2563 #define FW_ISP2300 2
2564 #define FW_ISP2322 3
2565 #define FW_ISP24XX 4
2566
2567 static DECLARE_MUTEX(qla_fw_lock);
2568
2569 static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
2570 { .name = "ql2100_fw.bin", .segs = { 0x1000, 0 }, },
2571 { .name = "ql2200_fw.bin", .segs = { 0x1000, 0 }, },
2572 { .name = "ql2300_fw.bin", .segs = { 0x800, 0 }, },
2573 { .name = "ql2322_fw.bin", .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
2574 { .name = "ql2400_fw.bin", },
2575 };
2576
2577 struct fw_blob *
2578 qla2x00_request_firmware(scsi_qla_host_t *ha)
2579 {
2580 struct fw_blob *blob;
2581
2582 blob = NULL;
2583 if (IS_QLA2100(ha)) {
2584 blob = &qla_fw_blobs[FW_ISP21XX];
2585 } else if (IS_QLA2200(ha)) {
2586 blob = &qla_fw_blobs[FW_ISP22XX];
2587 } else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
2588 blob = &qla_fw_blobs[FW_ISP2300];
2589 } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
2590 blob = &qla_fw_blobs[FW_ISP2322];
2591 } else if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
2592 blob = &qla_fw_blobs[FW_ISP24XX];
2593 }
2594
2595 down(&qla_fw_lock);
2596 if (blob->fw)
2597 goto out;
2598
2599 if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
2600 DEBUG2(printk("scsi(%ld): Failed to load firmware image "
2601 "(%s).\n", ha->host_no, blob->name));
2602 blob->fw = NULL;
2603 blob = NULL;
2604 goto out;
2605 }
2606
2607 out:
2608 up(&qla_fw_lock);
2609 return blob;
2610 }
2611
2612 static void
2613 qla2x00_release_firmware(void)
2614 {
2615 int idx;
2616
2617 down(&qla_fw_lock);
2618 for (idx = 0; idx < FW_BLOBS; idx++)
2619 if (qla_fw_blobs[idx].fw)
2620 release_firmware(qla_fw_blobs[idx].fw);
2621 up(&qla_fw_lock);
2622 }
2623
2624 static struct pci_device_id qla2xxx_pci_tbl[] = {
2625 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
2626 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
2627 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
2628 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
2629 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
2630 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
2631 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
2632 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
2633 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
2634 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
2635 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
2636 { 0 },
2637 };
2638 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
2639
2640 static struct pci_driver qla2xxx_pci_driver = {
2641 .name = QLA2XXX_DRIVER_NAME,
2642 .driver = {
2643 .owner = THIS_MODULE,
2644 },
2645 .id_table = qla2xxx_pci_tbl,
2646 .probe = qla2x00_probe_one,
2647 .remove = __devexit_p(qla2x00_remove_one),
2648 };
2649
2650 /**
2651 * qla2x00_module_init - Module initialization.
2652 **/
2653 static int __init
2654 qla2x00_module_init(void)
2655 {
2656 int ret = 0;
2657
2658 /* Allocate cache for SRBs. */
2659 srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
2660 SLAB_HWCACHE_ALIGN, NULL, NULL);
2661 if (srb_cachep == NULL) {
2662 printk(KERN_ERR
2663 "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
2664 return -ENOMEM;
2665 }
2666
2667 /* Derive version string. */
2668 strcpy(qla2x00_version_str, QLA2XXX_VERSION);
2669 if (extended_error_logging)
2670 strcat(qla2x00_version_str, "-debug");
2671
2672 qla2xxx_transport_template =
2673 fc_attach_transport(&qla2xxx_transport_functions);
2674 if (!qla2xxx_transport_template)
2675 return -ENODEV;
2676
2677 printk(KERN_INFO "QLogic Fibre Channel HBA Driver\n");
2678 ret = pci_register_driver(&qla2xxx_pci_driver);
2679 if (ret) {
2680 kmem_cache_destroy(srb_cachep);
2681 fc_release_transport(qla2xxx_transport_template);
2682 }
2683 return ret;
2684 }
2685
2686 /**
2687 * qla2x00_module_exit - Module cleanup.
2688 **/
2689 static void __exit
2690 qla2x00_module_exit(void)
2691 {
2692 pci_unregister_driver(&qla2xxx_pci_driver);
2693 qla2x00_release_firmware();
2694 kmem_cache_destroy(srb_cachep);
2695 fc_release_transport(qla2xxx_transport_template);
2696 }
2697
2698 module_init(qla2x00_module_init);
2699 module_exit(qla2x00_module_exit);
2700
2701 MODULE_AUTHOR("QLogic Corporation");
2702 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
2703 MODULE_LICENSE("GPL");
2704 MODULE_VERSION(QLA2XXX_VERSION);
linux-next