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[SCSI] update fc_transport for removal of block/unblock functions
[deliverable/linux.git] / drivers / scsi / qla2xxx / qla_os.c
1 /*
2 * QLogic Fibre Channel HBA Driver
3 * Copyright (c) 2003-2005 QLogic Corporation
4 *
5 * See LICENSE.qla2xxx for copyright and licensing details.
6 */
7 #include "qla_def.h"
8
9 #include <linux/moduleparam.h>
10 #include <linux/vmalloc.h>
11 #include <linux/smp_lock.h>
12 #include <linux/delay.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 ql2xfwloadbin=1;
58 module_param(ql2xfwloadbin, int, S_IRUGO|S_IRUSR);
59 MODULE_PARM_DESC(ql2xfwloadbin,
60 "Load ISP2xxx firmware image via hotplug.");
61
62 static void qla2x00_free_device(scsi_qla_host_t *);
63
64 static void qla2x00_config_dma_addressing(scsi_qla_host_t *ha);
65
66 int ql2xfdmienable;
67 module_param(ql2xfdmienable, int, S_IRUGO|S_IRUSR);
68 MODULE_PARM_DESC(ql2xfdmienable,
69 "Enables FDMI registratons "
70 "Default is 0 - no FDMI. 1 - perfom FDMI.");
71
72 /*
73 * SCSI host template entry points
74 */
75 static int qla2xxx_slave_configure(struct scsi_device * device);
76 static int qla2xxx_slave_alloc(struct scsi_device *);
77 static void qla2xxx_slave_destroy(struct scsi_device *);
78 static int qla2x00_queuecommand(struct scsi_cmnd *cmd,
79 void (*fn)(struct scsi_cmnd *));
80 static int qla24xx_queuecommand(struct scsi_cmnd *cmd,
81 void (*fn)(struct scsi_cmnd *));
82 static int qla2xxx_eh_abort(struct scsi_cmnd *);
83 static int qla2xxx_eh_device_reset(struct scsi_cmnd *);
84 static int qla2xxx_eh_bus_reset(struct scsi_cmnd *);
85 static int qla2xxx_eh_host_reset(struct scsi_cmnd *);
86 static int qla2x00_loop_reset(scsi_qla_host_t *ha);
87 static int qla2x00_device_reset(scsi_qla_host_t *, fc_port_t *);
88
89 static int qla2x00_change_queue_depth(struct scsi_device *, int);
90 static int qla2x00_change_queue_type(struct scsi_device *, int);
91
92 static struct scsi_host_template qla2x00_driver_template = {
93 .module = THIS_MODULE,
94 .name = "qla2xxx",
95 .queuecommand = qla2x00_queuecommand,
96
97 .eh_abort_handler = qla2xxx_eh_abort,
98 .eh_device_reset_handler = qla2xxx_eh_device_reset,
99 .eh_bus_reset_handler = qla2xxx_eh_bus_reset,
100 .eh_host_reset_handler = qla2xxx_eh_host_reset,
101
102 .slave_configure = qla2xxx_slave_configure,
103
104 .slave_alloc = qla2xxx_slave_alloc,
105 .slave_destroy = qla2xxx_slave_destroy,
106 .change_queue_depth = qla2x00_change_queue_depth,
107 .change_queue_type = qla2x00_change_queue_type,
108 .this_id = -1,
109 .cmd_per_lun = 3,
110 .use_clustering = ENABLE_CLUSTERING,
111 .sg_tablesize = SG_ALL,
112
113 /*
114 * The RISC allows for each command to transfer (2^32-1) bytes of data,
115 * which equates to 0x800000 sectors.
116 */
117 .max_sectors = 0xFFFF,
118 .shost_attrs = qla2x00_host_attrs,
119 };
120
121 static struct scsi_host_template qla24xx_driver_template = {
122 .module = THIS_MODULE,
123 .name = "qla2xxx",
124 .queuecommand = qla24xx_queuecommand,
125
126 .eh_abort_handler = qla2xxx_eh_abort,
127 .eh_device_reset_handler = qla2xxx_eh_device_reset,
128 .eh_bus_reset_handler = qla2xxx_eh_bus_reset,
129 .eh_host_reset_handler = qla2xxx_eh_host_reset,
130
131 .slave_configure = qla2xxx_slave_configure,
132
133 .slave_alloc = qla2xxx_slave_alloc,
134 .slave_destroy = qla2xxx_slave_destroy,
135 .change_queue_depth = qla2x00_change_queue_depth,
136 .change_queue_type = qla2x00_change_queue_type,
137 .this_id = -1,
138 .cmd_per_lun = 3,
139 .use_clustering = ENABLE_CLUSTERING,
140 .sg_tablesize = SG_ALL,
141
142 .max_sectors = 0xFFFF,
143 .shost_attrs = qla2x00_host_attrs,
144 };
145
146 static struct scsi_transport_template *qla2xxx_transport_template = NULL;
147
148 /* TODO Convert to inlines
149 *
150 * Timer routines
151 */
152 #define WATCH_INTERVAL 1 /* number of seconds */
153
154 static void qla2x00_timer(scsi_qla_host_t *);
155
156 static __inline__ void qla2x00_start_timer(scsi_qla_host_t *,
157 void *, unsigned long);
158 static __inline__ void qla2x00_restart_timer(scsi_qla_host_t *, unsigned long);
159 static __inline__ void qla2x00_stop_timer(scsi_qla_host_t *);
160
161 static inline void
162 qla2x00_start_timer(scsi_qla_host_t *ha, void *func, unsigned long interval)
163 {
164 init_timer(&ha->timer);
165 ha->timer.expires = jiffies + interval * HZ;
166 ha->timer.data = (unsigned long)ha;
167 ha->timer.function = (void (*)(unsigned long))func;
168 add_timer(&ha->timer);
169 ha->timer_active = 1;
170 }
171
172 static inline void
173 qla2x00_restart_timer(scsi_qla_host_t *ha, unsigned long interval)
174 {
175 mod_timer(&ha->timer, jiffies + interval * HZ);
176 }
177
178 static __inline__ void
179 qla2x00_stop_timer(scsi_qla_host_t *ha)
180 {
181 del_timer_sync(&ha->timer);
182 ha->timer_active = 0;
183 }
184
185 static int qla2x00_do_dpc(void *data);
186
187 static void qla2x00_rst_aen(scsi_qla_host_t *);
188
189 static uint8_t qla2x00_mem_alloc(scsi_qla_host_t *);
190 static void qla2x00_mem_free(scsi_qla_host_t *ha);
191 static int qla2x00_allocate_sp_pool( scsi_qla_host_t *ha);
192 static void qla2x00_free_sp_pool(scsi_qla_host_t *ha);
193 static void qla2x00_sp_free_dma(scsi_qla_host_t *, srb_t *);
194 void qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *);
195
196 /* -------------------------------------------------------------------------- */
197
198 static char *
199 qla2x00_pci_info_str(struct scsi_qla_host *ha, char *str)
200 {
201 static char *pci_bus_modes[] = {
202 "33", "66", "100", "133",
203 };
204 uint16_t pci_bus;
205
206 strcpy(str, "PCI");
207 pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
208 if (pci_bus) {
209 strcat(str, "-X (");
210 strcat(str, pci_bus_modes[pci_bus]);
211 } else {
212 pci_bus = (ha->pci_attr & BIT_8) >> 8;
213 strcat(str, " (");
214 strcat(str, pci_bus_modes[pci_bus]);
215 }
216 strcat(str, " MHz)");
217
218 return (str);
219 }
220
221 static char *
222 qla24xx_pci_info_str(struct scsi_qla_host *ha, char *str)
223 {
224 static char *pci_bus_modes[] = { "33", "66", "100", "133", };
225 uint32_t pci_bus;
226 int pcie_reg;
227
228 pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
229 if (pcie_reg) {
230 char lwstr[6];
231 uint16_t pcie_lstat, lspeed, lwidth;
232
233 pcie_reg += 0x12;
234 pci_read_config_word(ha->pdev, pcie_reg, &pcie_lstat);
235 lspeed = pcie_lstat & (BIT_0 | BIT_1 | BIT_2 | BIT_3);
236 lwidth = (pcie_lstat &
237 (BIT_4 | BIT_5 | BIT_6 | BIT_7 | BIT_8 | BIT_9)) >> 4;
238
239 strcpy(str, "PCIe (");
240 if (lspeed == 1)
241 strcat(str, "2.5Gb/s ");
242 else
243 strcat(str, "<unknown> ");
244 snprintf(lwstr, sizeof(lwstr), "x%d)", lwidth);
245 strcat(str, lwstr);
246
247 return str;
248 }
249
250 strcpy(str, "PCI");
251 pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
252 if (pci_bus == 0 || pci_bus == 8) {
253 strcat(str, " (");
254 strcat(str, pci_bus_modes[pci_bus >> 3]);
255 } else {
256 strcat(str, "-X ");
257 if (pci_bus & BIT_2)
258 strcat(str, "Mode 2");
259 else
260 strcat(str, "Mode 1");
261 strcat(str, " (");
262 strcat(str, pci_bus_modes[pci_bus & ~BIT_2]);
263 }
264 strcat(str, " MHz)");
265
266 return str;
267 }
268
269 char *
270 qla2x00_fw_version_str(struct scsi_qla_host *ha, char *str)
271 {
272 char un_str[10];
273
274 sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
275 ha->fw_minor_version,
276 ha->fw_subminor_version);
277
278 if (ha->fw_attributes & BIT_9) {
279 strcat(str, "FLX");
280 return (str);
281 }
282
283 switch (ha->fw_attributes & 0xFF) {
284 case 0x7:
285 strcat(str, "EF");
286 break;
287 case 0x17:
288 strcat(str, "TP");
289 break;
290 case 0x37:
291 strcat(str, "IP");
292 break;
293 case 0x77:
294 strcat(str, "VI");
295 break;
296 default:
297 sprintf(un_str, "(%x)", ha->fw_attributes);
298 strcat(str, un_str);
299 break;
300 }
301 if (ha->fw_attributes & 0x100)
302 strcat(str, "X");
303
304 return (str);
305 }
306
307 char *
308 qla24xx_fw_version_str(struct scsi_qla_host *ha, char *str)
309 {
310 sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
311 ha->fw_minor_version,
312 ha->fw_subminor_version);
313
314 if (ha->fw_attributes & BIT_0)
315 strcat(str, "[Class 2] ");
316 if (ha->fw_attributes & BIT_1)
317 strcat(str, "[IP] ");
318 if (ha->fw_attributes & BIT_2)
319 strcat(str, "[Multi-ID] ");
320 if (ha->fw_attributes & BIT_13)
321 strcat(str, "[Experimental]");
322 return str;
323 }
324
325 static inline srb_t *
326 qla2x00_get_new_sp(scsi_qla_host_t *ha, fc_port_t *fcport,
327 struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
328 {
329 srb_t *sp;
330
331 sp = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
332 if (!sp)
333 return sp;
334
335 atomic_set(&sp->ref_count, 1);
336 sp->ha = ha;
337 sp->fcport = fcport;
338 sp->cmd = cmd;
339 sp->flags = 0;
340 CMD_SP(cmd) = (void *)sp;
341 cmd->scsi_done = done;
342
343 return sp;
344 }
345
346 static int
347 qla2x00_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
348 {
349 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
350 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
351 struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
352 srb_t *sp;
353 int rval;
354
355 rval = fc_remote_port_chkready(rport);
356 if (rval) {
357 cmd->result = rval;
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 if (atomic_read(&fcport->state) != FCS_ONLINE) {
417 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
418 atomic_read(&ha->loop_state) == LOOP_DEAD) {
419 cmd->result = DID_NO_CONNECT << 16;
420 goto qc24_fail_command;
421 }
422 goto qc24_host_busy;
423 }
424
425 spin_unlock_irq(ha->host->host_lock);
426
427 sp = qla2x00_get_new_sp(ha, fcport, cmd, done);
428 if (!sp)
429 goto qc24_host_busy_lock;
430
431 rval = qla24xx_start_scsi(sp);
432 if (rval != QLA_SUCCESS)
433 goto qc24_host_busy_free_sp;
434
435 spin_lock_irq(ha->host->host_lock);
436
437 return 0;
438
439 qc24_host_busy_free_sp:
440 qla2x00_sp_free_dma(ha, sp);
441 mempool_free(sp, ha->srb_mempool);
442
443 qc24_host_busy_lock:
444 spin_lock_irq(ha->host->host_lock);
445
446 qc24_host_busy:
447 return SCSI_MLQUEUE_HOST_BUSY;
448
449 qc24_fail_command:
450 done(cmd);
451
452 return 0;
453 }
454
455
456 /*
457 * qla2x00_eh_wait_on_command
458 * Waits for the command to be returned by the Firmware for some
459 * max time.
460 *
461 * Input:
462 * ha = actual ha whose done queue will contain the command
463 * returned by firmware.
464 * cmd = Scsi Command to wait on.
465 * flag = Abort/Reset(Bus or Device Reset)
466 *
467 * Return:
468 * Not Found : 0
469 * Found : 1
470 */
471 static int
472 qla2x00_eh_wait_on_command(scsi_qla_host_t *ha, struct scsi_cmnd *cmd)
473 {
474 #define ABORT_POLLING_PERIOD 1000
475 #define ABORT_WAIT_ITER ((10 * 1000) / (ABORT_POLLING_PERIOD))
476 unsigned long wait_iter = ABORT_WAIT_ITER;
477 int ret = QLA_SUCCESS;
478
479 while (CMD_SP(cmd)) {
480 msleep(ABORT_POLLING_PERIOD);
481
482 if (--wait_iter)
483 break;
484 }
485 if (CMD_SP(cmd))
486 ret = QLA_FUNCTION_FAILED;
487
488 return ret;
489 }
490
491 /*
492 * qla2x00_wait_for_hba_online
493 * Wait till the HBA is online after going through
494 * <= MAX_RETRIES_OF_ISP_ABORT or
495 * finally HBA is disabled ie marked offline
496 *
497 * Input:
498 * ha - pointer to host adapter structure
499 *
500 * Note:
501 * Does context switching-Release SPIN_LOCK
502 * (if any) before calling this routine.
503 *
504 * Return:
505 * Success (Adapter is online) : 0
506 * Failed (Adapter is offline/disabled) : 1
507 */
508 static int
509 qla2x00_wait_for_hba_online(scsi_qla_host_t *ha)
510 {
511 int return_status;
512 unsigned long wait_online;
513
514 wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
515 while (((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) ||
516 test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags) ||
517 test_bit(ISP_ABORT_RETRY, &ha->dpc_flags) ||
518 ha->dpc_active) && time_before(jiffies, wait_online)) {
519
520 msleep(1000);
521 }
522 if (ha->flags.online)
523 return_status = QLA_SUCCESS;
524 else
525 return_status = QLA_FUNCTION_FAILED;
526
527 DEBUG2(printk("%s return_status=%d\n",__func__,return_status));
528
529 return (return_status);
530 }
531
532 /*
533 * qla2x00_wait_for_loop_ready
534 * Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
535 * to be in LOOP_READY state.
536 * Input:
537 * ha - pointer to host adapter structure
538 *
539 * Note:
540 * Does context switching-Release SPIN_LOCK
541 * (if any) before calling this routine.
542 *
543 *
544 * Return:
545 * Success (LOOP_READY) : 0
546 * Failed (LOOP_NOT_READY) : 1
547 */
548 static inline int
549 qla2x00_wait_for_loop_ready(scsi_qla_host_t *ha)
550 {
551 int return_status = QLA_SUCCESS;
552 unsigned long loop_timeout ;
553
554 /* wait for 5 min at the max for loop to be ready */
555 loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ);
556
557 while ((!atomic_read(&ha->loop_down_timer) &&
558 atomic_read(&ha->loop_state) == LOOP_DOWN) ||
559 atomic_read(&ha->loop_state) != LOOP_READY) {
560 msleep(1000);
561 if (time_after_eq(jiffies, loop_timeout)) {
562 return_status = QLA_FUNCTION_FAILED;
563 break;
564 }
565 }
566 return (return_status);
567 }
568
569 /**************************************************************************
570 * qla2xxx_eh_abort
571 *
572 * Description:
573 * The abort function will abort the specified command.
574 *
575 * Input:
576 * cmd = Linux SCSI command packet to be aborted.
577 *
578 * Returns:
579 * Either SUCCESS or FAILED.
580 *
581 * Note:
582 **************************************************************************/
583 int
584 qla2xxx_eh_abort(struct scsi_cmnd *cmd)
585 {
586 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
587 srb_t *sp;
588 int ret, i;
589 unsigned int id, lun;
590 unsigned long serial;
591 unsigned long flags;
592
593 if (!CMD_SP(cmd))
594 return FAILED;
595
596 ret = FAILED;
597
598 id = cmd->device->id;
599 lun = cmd->device->lun;
600 serial = cmd->serial_number;
601
602 /* Check active list for command command. */
603 spin_lock_irqsave(&ha->hardware_lock, flags);
604 for (i = 1; i < MAX_OUTSTANDING_COMMANDS; i++) {
605 sp = ha->outstanding_cmds[i];
606
607 if (sp == NULL)
608 continue;
609
610 if (sp->cmd != cmd)
611 continue;
612
613 DEBUG2(printk("%s(%ld): aborting sp %p from RISC. pid=%ld "
614 "sp->state=%x\n", __func__, ha->host_no, sp, serial,
615 sp->state));
616 DEBUG3(qla2x00_print_scsi_cmd(cmd);)
617
618 spin_unlock_irqrestore(&ha->hardware_lock, flags);
619 if (ha->isp_ops.abort_command(ha, sp)) {
620 DEBUG2(printk("%s(%ld): abort_command "
621 "mbx failed.\n", __func__, ha->host_no));
622 } else {
623 DEBUG3(printk("%s(%ld): abort_command "
624 "mbx success.\n", __func__, ha->host_no));
625 ret = SUCCESS;
626 }
627 spin_lock_irqsave(&ha->hardware_lock, flags);
628
629 break;
630 }
631 spin_unlock_irqrestore(&ha->hardware_lock, flags);
632
633 /* Wait for the command to be returned. */
634 if (ret == SUCCESS) {
635 if (qla2x00_eh_wait_on_command(ha, cmd) != QLA_SUCCESS) {
636 qla_printk(KERN_ERR, ha,
637 "scsi(%ld:%d:%d): Abort handler timed out -- %lx "
638 "%x.\n", ha->host_no, id, lun, serial, ret);
639 }
640 }
641
642 qla_printk(KERN_INFO, ha,
643 "scsi(%ld:%d:%d): Abort command issued -- %lx %x.\n", ha->host_no,
644 id, lun, serial, ret);
645
646 return ret;
647 }
648
649 /**************************************************************************
650 * qla2x00_eh_wait_for_pending_target_commands
651 *
652 * Description:
653 * Waits for all the commands to come back from the specified target.
654 *
655 * Input:
656 * ha - pointer to scsi_qla_host structure.
657 * t - target
658 * Returns:
659 * Either SUCCESS or FAILED.
660 *
661 * Note:
662 **************************************************************************/
663 static int
664 qla2x00_eh_wait_for_pending_target_commands(scsi_qla_host_t *ha, unsigned int t)
665 {
666 int cnt;
667 int status;
668 srb_t *sp;
669 struct scsi_cmnd *cmd;
670 unsigned long flags;
671
672 status = 0;
673
674 /*
675 * Waiting for all commands for the designated target in the active
676 * array
677 */
678 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
679 spin_lock_irqsave(&ha->hardware_lock, flags);
680 sp = ha->outstanding_cmds[cnt];
681 if (sp) {
682 cmd = sp->cmd;
683 spin_unlock_irqrestore(&ha->hardware_lock, flags);
684 if (cmd->device->id == t) {
685 if (!qla2x00_eh_wait_on_command(ha, cmd)) {
686 status = 1;
687 break;
688 }
689 }
690 } else {
691 spin_unlock_irqrestore(&ha->hardware_lock, flags);
692 }
693 }
694 return (status);
695 }
696
697
698 /**************************************************************************
699 * qla2xxx_eh_device_reset
700 *
701 * Description:
702 * The device reset function will reset the target and abort any
703 * executing commands.
704 *
705 * NOTE: The use of SP is undefined within this context. Do *NOT*
706 * attempt to use this value, even if you determine it is
707 * non-null.
708 *
709 * Input:
710 * cmd = Linux SCSI command packet of the command that cause the
711 * bus device reset.
712 *
713 * Returns:
714 * SUCCESS/FAILURE (defined as macro in scsi.h).
715 *
716 **************************************************************************/
717 int
718 qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
719 {
720 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
721 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
722 srb_t *sp;
723 int ret;
724 unsigned int id, lun;
725 unsigned long serial;
726
727 ret = FAILED;
728
729 id = cmd->device->id;
730 lun = cmd->device->lun;
731 serial = cmd->serial_number;
732
733 sp = (srb_t *) CMD_SP(cmd);
734 if (!sp || !fcport)
735 return ret;
736
737 qla_printk(KERN_INFO, ha,
738 "scsi(%ld:%d:%d): DEVICE RESET ISSUED.\n", ha->host_no, id, lun);
739
740 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
741 goto eh_dev_reset_done;
742
743 if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
744 if (qla2x00_device_reset(ha, fcport) == 0)
745 ret = SUCCESS;
746
747 #if defined(LOGOUT_AFTER_DEVICE_RESET)
748 if (ret == SUCCESS) {
749 if (fcport->flags & FC_FABRIC_DEVICE) {
750 ha->isp_ops.fabric_logout(ha, fcport->loop_id);
751 qla2x00_mark_device_lost(ha, fcport);
752 }
753 }
754 #endif
755 } else {
756 DEBUG2(printk(KERN_INFO
757 "%s failed: loop not ready\n",__func__);)
758 }
759
760 if (ret == FAILED) {
761 DEBUG3(printk("%s(%ld): device reset failed\n",
762 __func__, ha->host_no));
763 qla_printk(KERN_INFO, ha, "%s: device reset failed\n",
764 __func__);
765
766 goto eh_dev_reset_done;
767 }
768
769 /* Flush outstanding commands. */
770 if (qla2x00_eh_wait_for_pending_target_commands(ha, id))
771 ret = FAILED;
772 if (ret == FAILED) {
773 DEBUG3(printk("%s(%ld): failed while waiting for commands\n",
774 __func__, ha->host_no));
775 qla_printk(KERN_INFO, ha,
776 "%s: failed while waiting for commands\n", __func__);
777 } else
778 qla_printk(KERN_INFO, ha,
779 "scsi(%ld:%d:%d): DEVICE RESET SUCCEEDED.\n", ha->host_no,
780 id, lun);
781 eh_dev_reset_done:
782 return ret;
783 }
784
785 /**************************************************************************
786 * qla2x00_eh_wait_for_pending_commands
787 *
788 * Description:
789 * Waits for all the commands to come back from the specified host.
790 *
791 * Input:
792 * ha - pointer to scsi_qla_host structure.
793 *
794 * Returns:
795 * 1 : SUCCESS
796 * 0 : FAILED
797 *
798 * Note:
799 **************************************************************************/
800 static int
801 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *ha)
802 {
803 int cnt;
804 int status;
805 srb_t *sp;
806 struct scsi_cmnd *cmd;
807 unsigned long flags;
808
809 status = 1;
810
811 /*
812 * Waiting for all commands for the designated target in the active
813 * array
814 */
815 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
816 spin_lock_irqsave(&ha->hardware_lock, flags);
817 sp = ha->outstanding_cmds[cnt];
818 if (sp) {
819 cmd = sp->cmd;
820 spin_unlock_irqrestore(&ha->hardware_lock, flags);
821 status = qla2x00_eh_wait_on_command(ha, cmd);
822 if (status == 0)
823 break;
824 }
825 else {
826 spin_unlock_irqrestore(&ha->hardware_lock, flags);
827 }
828 }
829 return (status);
830 }
831
832
833 /**************************************************************************
834 * qla2xxx_eh_bus_reset
835 *
836 * Description:
837 * The bus reset function will reset the bus and abort any executing
838 * commands.
839 *
840 * Input:
841 * cmd = Linux SCSI command packet of the command that cause the
842 * bus reset.
843 *
844 * Returns:
845 * SUCCESS/FAILURE (defined as macro in scsi.h).
846 *
847 **************************************************************************/
848 int
849 qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
850 {
851 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
852 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
853 srb_t *sp;
854 int ret;
855 unsigned int id, lun;
856 unsigned long serial;
857
858 ret = FAILED;
859
860 id = cmd->device->id;
861 lun = cmd->device->lun;
862 serial = cmd->serial_number;
863
864 sp = (srb_t *) CMD_SP(cmd);
865 if (!sp || !fcport)
866 return ret;
867
868 qla_printk(KERN_INFO, ha,
869 "scsi(%ld:%d:%d): LOOP RESET ISSUED.\n", ha->host_no, id, lun);
870
871 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS) {
872 DEBUG2(printk("%s failed:board disabled\n",__func__));
873 goto eh_bus_reset_done;
874 }
875
876 if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
877 if (qla2x00_loop_reset(ha) == QLA_SUCCESS)
878 ret = SUCCESS;
879 }
880 if (ret == FAILED)
881 goto eh_bus_reset_done;
882
883 /* Flush outstanding commands. */
884 if (!qla2x00_eh_wait_for_pending_commands(ha))
885 ret = FAILED;
886
887 eh_bus_reset_done:
888 qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
889 (ret == FAILED) ? "failed" : "succeded");
890
891 return ret;
892 }
893
894 /**************************************************************************
895 * qla2xxx_eh_host_reset
896 *
897 * Description:
898 * The reset function will reset the Adapter.
899 *
900 * Input:
901 * cmd = Linux SCSI command packet of the command that cause the
902 * adapter reset.
903 *
904 * Returns:
905 * Either SUCCESS or FAILED.
906 *
907 * Note:
908 **************************************************************************/
909 int
910 qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
911 {
912 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
913 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
914 srb_t *sp;
915 int ret;
916 unsigned int id, lun;
917 unsigned long serial;
918
919 ret = FAILED;
920
921 id = cmd->device->id;
922 lun = cmd->device->lun;
923 serial = cmd->serial_number;
924
925 sp = (srb_t *) CMD_SP(cmd);
926 if (!sp || !fcport)
927 return ret;
928
929 qla_printk(KERN_INFO, ha,
930 "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", ha->host_no, id, lun);
931
932 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
933 goto eh_host_reset_lock;
934
935 /*
936 * Fixme-may be dpc thread is active and processing
937 * loop_resync,so wait a while for it to
938 * be completed and then issue big hammer.Otherwise
939 * it may cause I/O failure as big hammer marks the
940 * devices as lost kicking of the port_down_timer
941 * while dpc is stuck for the mailbox to complete.
942 */
943 qla2x00_wait_for_loop_ready(ha);
944 set_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
945 if (qla2x00_abort_isp(ha)) {
946 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
947 /* failed. schedule dpc to try */
948 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
949
950 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
951 goto eh_host_reset_lock;
952 }
953 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
954
955 /* Waiting for our command in done_queue to be returned to OS.*/
956 if (qla2x00_eh_wait_for_pending_commands(ha))
957 ret = SUCCESS;
958
959 eh_host_reset_lock:
960 qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
961 (ret == FAILED) ? "failed" : "succeded");
962
963 return ret;
964 }
965
966 /*
967 * qla2x00_loop_reset
968 * Issue loop reset.
969 *
970 * Input:
971 * ha = adapter block pointer.
972 *
973 * Returns:
974 * 0 = success
975 */
976 static int
977 qla2x00_loop_reset(scsi_qla_host_t *ha)
978 {
979 int status = QLA_SUCCESS;
980 struct fc_port *fcport;
981
982 if (ha->flags.enable_lip_reset) {
983 status = qla2x00_lip_reset(ha);
984 }
985
986 if (status == QLA_SUCCESS && ha->flags.enable_target_reset) {
987 list_for_each_entry(fcport, &ha->fcports, list) {
988 if (fcport->port_type != FCT_TARGET)
989 continue;
990
991 status = qla2x00_device_reset(ha, fcport);
992 if (status != QLA_SUCCESS)
993 break;
994 }
995 }
996
997 if (status == QLA_SUCCESS &&
998 ((!ha->flags.enable_target_reset &&
999 !ha->flags.enable_lip_reset) ||
1000 ha->flags.enable_lip_full_login)) {
1001
1002 status = qla2x00_full_login_lip(ha);
1003 }
1004
1005 /* Issue marker command only when we are going to start the I/O */
1006 ha->marker_needed = 1;
1007
1008 if (status) {
1009 /* Empty */
1010 DEBUG2_3(printk("%s(%ld): **** FAILED ****\n",
1011 __func__,
1012 ha->host_no);)
1013 } else {
1014 /* Empty */
1015 DEBUG3(printk("%s(%ld): exiting normally.\n",
1016 __func__,
1017 ha->host_no);)
1018 }
1019
1020 return(status);
1021 }
1022
1023 /*
1024 * qla2x00_device_reset
1025 * Issue bus device reset message to the target.
1026 *
1027 * Input:
1028 * ha = adapter block pointer.
1029 * t = SCSI ID.
1030 * TARGET_QUEUE_LOCK must be released.
1031 * ADAPTER_STATE_LOCK must be released.
1032 *
1033 * Context:
1034 * Kernel context.
1035 */
1036 static int
1037 qla2x00_device_reset(scsi_qla_host_t *ha, fc_port_t *reset_fcport)
1038 {
1039 /* Abort Target command will clear Reservation */
1040 return ha->isp_ops.abort_target(reset_fcport);
1041 }
1042
1043 static int
1044 qla2xxx_slave_alloc(struct scsi_device *sdev)
1045 {
1046 struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1047
1048 if (!rport || fc_remote_port_chkready(rport))
1049 return -ENXIO;
1050
1051 sdev->hostdata = *(fc_port_t **)rport->dd_data;
1052
1053 return 0;
1054 }
1055
1056 static int
1057 qla2xxx_slave_configure(struct scsi_device *sdev)
1058 {
1059 scsi_qla_host_t *ha = to_qla_host(sdev->host);
1060 struct fc_rport *rport = starget_to_rport(sdev->sdev_target);
1061
1062 if (sdev->tagged_supported)
1063 scsi_activate_tcq(sdev, 32);
1064 else
1065 scsi_deactivate_tcq(sdev, 32);
1066
1067 rport->dev_loss_tmo = ha->port_down_retry_count + 5;
1068
1069 return 0;
1070 }
1071
1072 static void
1073 qla2xxx_slave_destroy(struct scsi_device *sdev)
1074 {
1075 sdev->hostdata = NULL;
1076 }
1077
1078 static int
1079 qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth)
1080 {
1081 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1082 return sdev->queue_depth;
1083 }
1084
1085 static int
1086 qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1087 {
1088 if (sdev->tagged_supported) {
1089 scsi_set_tag_type(sdev, tag_type);
1090 if (tag_type)
1091 scsi_activate_tcq(sdev, sdev->queue_depth);
1092 else
1093 scsi_deactivate_tcq(sdev, sdev->queue_depth);
1094 } else
1095 tag_type = 0;
1096
1097 return tag_type;
1098 }
1099
1100 /**
1101 * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1102 * @ha: HA context
1103 *
1104 * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1105 * supported addressing method.
1106 */
1107 static void
1108 qla2x00_config_dma_addressing(scsi_qla_host_t *ha)
1109 {
1110 /* Assume a 32bit DMA mask. */
1111 ha->flags.enable_64bit_addressing = 0;
1112
1113 if (!dma_set_mask(&ha->pdev->dev, DMA_64BIT_MASK)) {
1114 /* Any upper-dword bits set? */
1115 if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1116 !pci_set_consistent_dma_mask(ha->pdev, DMA_64BIT_MASK)) {
1117 /* Ok, a 64bit DMA mask is applicable. */
1118 ha->flags.enable_64bit_addressing = 1;
1119 ha->isp_ops.calc_req_entries = qla2x00_calc_iocbs_64;
1120 ha->isp_ops.build_iocbs = qla2x00_build_scsi_iocbs_64;
1121 return;
1122 }
1123 }
1124
1125 dma_set_mask(&ha->pdev->dev, DMA_32BIT_MASK);
1126 pci_set_consistent_dma_mask(ha->pdev, DMA_32BIT_MASK);
1127 }
1128
1129 static int
1130 qla2x00_iospace_config(scsi_qla_host_t *ha)
1131 {
1132 unsigned long pio, pio_len, pio_flags;
1133 unsigned long mmio, mmio_len, mmio_flags;
1134
1135 /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1136 pio = pci_resource_start(ha->pdev, 0);
1137 pio_len = pci_resource_len(ha->pdev, 0);
1138 pio_flags = pci_resource_flags(ha->pdev, 0);
1139 if (pio_flags & IORESOURCE_IO) {
1140 if (pio_len < MIN_IOBASE_LEN) {
1141 qla_printk(KERN_WARNING, ha,
1142 "Invalid PCI I/O region size (%s)...\n",
1143 pci_name(ha->pdev));
1144 pio = 0;
1145 }
1146 } else {
1147 qla_printk(KERN_WARNING, ha,
1148 "region #0 not a PIO resource (%s)...\n",
1149 pci_name(ha->pdev));
1150 pio = 0;
1151 }
1152
1153 /* Use MMIO operations for all accesses. */
1154 mmio = pci_resource_start(ha->pdev, 1);
1155 mmio_len = pci_resource_len(ha->pdev, 1);
1156 mmio_flags = pci_resource_flags(ha->pdev, 1);
1157
1158 if (!(mmio_flags & IORESOURCE_MEM)) {
1159 qla_printk(KERN_ERR, ha,
1160 "region #0 not an MMIO resource (%s), aborting\n",
1161 pci_name(ha->pdev));
1162 goto iospace_error_exit;
1163 }
1164 if (mmio_len < MIN_IOBASE_LEN) {
1165 qla_printk(KERN_ERR, ha,
1166 "Invalid PCI mem region size (%s), aborting\n",
1167 pci_name(ha->pdev));
1168 goto iospace_error_exit;
1169 }
1170
1171 if (pci_request_regions(ha->pdev, ha->brd_info->drv_name)) {
1172 qla_printk(KERN_WARNING, ha,
1173 "Failed to reserve PIO/MMIO regions (%s)\n",
1174 pci_name(ha->pdev));
1175
1176 goto iospace_error_exit;
1177 }
1178
1179 ha->pio_address = pio;
1180 ha->pio_length = pio_len;
1181 ha->iobase = ioremap(mmio, MIN_IOBASE_LEN);
1182 if (!ha->iobase) {
1183 qla_printk(KERN_ERR, ha,
1184 "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
1185
1186 goto iospace_error_exit;
1187 }
1188
1189 return (0);
1190
1191 iospace_error_exit:
1192 return (-ENOMEM);
1193 }
1194
1195 static void
1196 qla2x00_enable_intrs(scsi_qla_host_t *ha)
1197 {
1198 unsigned long flags = 0;
1199 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1200
1201 spin_lock_irqsave(&ha->hardware_lock, flags);
1202 ha->interrupts_on = 1;
1203 /* enable risc and host interrupts */
1204 WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1205 RD_REG_WORD(&reg->ictrl);
1206 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1207
1208 }
1209
1210 static void
1211 qla2x00_disable_intrs(scsi_qla_host_t *ha)
1212 {
1213 unsigned long flags = 0;
1214 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1215
1216 spin_lock_irqsave(&ha->hardware_lock, flags);
1217 ha->interrupts_on = 0;
1218 /* disable risc and host interrupts */
1219 WRT_REG_WORD(&reg->ictrl, 0);
1220 RD_REG_WORD(&reg->ictrl);
1221 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1222 }
1223
1224 static void
1225 qla24xx_enable_intrs(scsi_qla_host_t *ha)
1226 {
1227 unsigned long flags = 0;
1228 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1229
1230 spin_lock_irqsave(&ha->hardware_lock, flags);
1231 ha->interrupts_on = 1;
1232 WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1233 RD_REG_DWORD(&reg->ictrl);
1234 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1235 }
1236
1237 static void
1238 qla24xx_disable_intrs(scsi_qla_host_t *ha)
1239 {
1240 unsigned long flags = 0;
1241 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1242
1243 spin_lock_irqsave(&ha->hardware_lock, flags);
1244 ha->interrupts_on = 0;
1245 WRT_REG_DWORD(&reg->ictrl, 0);
1246 RD_REG_DWORD(&reg->ictrl);
1247 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1248 }
1249
1250 /*
1251 * PCI driver interface
1252 */
1253 int qla2x00_probe_one(struct pci_dev *pdev, struct qla_board_info *brd_info)
1254 {
1255 int ret = -ENODEV;
1256 device_reg_t __iomem *reg;
1257 struct Scsi_Host *host;
1258 scsi_qla_host_t *ha;
1259 unsigned long flags = 0;
1260 unsigned long wait_switch = 0;
1261 char pci_info[20];
1262 char fw_str[30];
1263 fc_port_t *fcport;
1264
1265 if (pci_enable_device(pdev))
1266 goto probe_out;
1267
1268 host = scsi_host_alloc(brd_info->sht ? brd_info->sht:
1269 &qla2x00_driver_template, sizeof(scsi_qla_host_t));
1270 if (host == NULL) {
1271 printk(KERN_WARNING
1272 "qla2xxx: Couldn't allocate host from scsi layer!\n");
1273 goto probe_disable_device;
1274 }
1275
1276 /* Clear our data area */
1277 ha = (scsi_qla_host_t *)host->hostdata;
1278 memset(ha, 0, sizeof(scsi_qla_host_t));
1279
1280 ha->pdev = pdev;
1281 ha->host = host;
1282 ha->host_no = host->host_no;
1283 ha->brd_info = brd_info;
1284 sprintf(ha->host_str, "%s_%ld", ha->brd_info->drv_name, ha->host_no);
1285
1286 ha->dpc_pid = -1;
1287
1288 /* Configure PCI I/O space */
1289 ret = qla2x00_iospace_config(ha);
1290 if (ret)
1291 goto probe_failed;
1292
1293 qla_printk(KERN_INFO, ha,
1294 "Found an %s, irq %d, iobase 0x%p\n", ha->brd_info->isp_name,
1295 pdev->irq, ha->iobase);
1296
1297 spin_lock_init(&ha->hardware_lock);
1298
1299 ha->prev_topology = 0;
1300 ha->ports = MAX_BUSES;
1301 ha->init_cb_size = sizeof(init_cb_t);
1302 ha->mgmt_svr_loop_id = MANAGEMENT_SERVER;
1303
1304 /* Assign ISP specific operations. */
1305 ha->isp_ops.pci_config = qla2100_pci_config;
1306 ha->isp_ops.reset_chip = qla2x00_reset_chip;
1307 ha->isp_ops.chip_diag = qla2x00_chip_diag;
1308 ha->isp_ops.config_rings = qla2x00_config_rings;
1309 ha->isp_ops.reset_adapter = qla2x00_reset_adapter;
1310 ha->isp_ops.nvram_config = qla2x00_nvram_config;
1311 ha->isp_ops.update_fw_options = qla2x00_update_fw_options;
1312 ha->isp_ops.load_risc = qla2x00_load_risc;
1313 ha->isp_ops.pci_info_str = qla2x00_pci_info_str;
1314 ha->isp_ops.fw_version_str = qla2x00_fw_version_str;
1315 ha->isp_ops.intr_handler = qla2100_intr_handler;
1316 ha->isp_ops.enable_intrs = qla2x00_enable_intrs;
1317 ha->isp_ops.disable_intrs = qla2x00_disable_intrs;
1318 ha->isp_ops.abort_command = qla2x00_abort_command;
1319 ha->isp_ops.abort_target = qla2x00_abort_target;
1320 ha->isp_ops.fabric_login = qla2x00_login_fabric;
1321 ha->isp_ops.fabric_logout = qla2x00_fabric_logout;
1322 ha->isp_ops.calc_req_entries = qla2x00_calc_iocbs_32;
1323 ha->isp_ops.build_iocbs = qla2x00_build_scsi_iocbs_32;
1324 ha->isp_ops.prep_ms_iocb = qla2x00_prep_ms_iocb;
1325 ha->isp_ops.prep_ms_fdmi_iocb = qla2x00_prep_ms_fdmi_iocb;
1326 ha->isp_ops.read_nvram = qla2x00_read_nvram_data;
1327 ha->isp_ops.write_nvram = qla2x00_write_nvram_data;
1328 ha->isp_ops.fw_dump = qla2100_fw_dump;
1329 ha->isp_ops.ascii_fw_dump = qla2100_ascii_fw_dump;
1330 if (IS_QLA2100(ha)) {
1331 host->max_id = MAX_TARGETS_2100;
1332 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
1333 ha->request_q_length = REQUEST_ENTRY_CNT_2100;
1334 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1335 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1336 host->sg_tablesize = 32;
1337 ha->gid_list_info_size = 4;
1338 } else if (IS_QLA2200(ha)) {
1339 host->max_id = MAX_TARGETS_2200;
1340 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1341 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1342 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1343 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1344 ha->gid_list_info_size = 4;
1345 } else if (IS_QLA23XX(ha)) {
1346 host->max_id = MAX_TARGETS_2200;
1347 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1348 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1349 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1350 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1351 ha->isp_ops.pci_config = qla2300_pci_config;
1352 ha->isp_ops.intr_handler = qla2300_intr_handler;
1353 ha->isp_ops.fw_dump = qla2300_fw_dump;
1354 ha->isp_ops.ascii_fw_dump = qla2300_ascii_fw_dump;
1355 ha->gid_list_info_size = 6;
1356 } else if (IS_QLA24XX(ha) || IS_QLA25XX(ha)) {
1357 host->max_id = MAX_TARGETS_2200;
1358 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1359 ha->request_q_length = REQUEST_ENTRY_CNT_24XX;
1360 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1361 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1362 ha->init_cb_size = sizeof(struct init_cb_24xx);
1363 ha->mgmt_svr_loop_id = 10;
1364 ha->isp_ops.pci_config = qla24xx_pci_config;
1365 ha->isp_ops.reset_chip = qla24xx_reset_chip;
1366 ha->isp_ops.chip_diag = qla24xx_chip_diag;
1367 ha->isp_ops.config_rings = qla24xx_config_rings;
1368 ha->isp_ops.reset_adapter = qla24xx_reset_adapter;
1369 ha->isp_ops.nvram_config = qla24xx_nvram_config;
1370 ha->isp_ops.update_fw_options = qla24xx_update_fw_options;
1371 ha->isp_ops.load_risc = qla24xx_load_risc_flash;
1372 if (ql2xfwloadbin)
1373 ha->isp_ops.load_risc = qla24xx_load_risc_hotplug;
1374 ha->isp_ops.pci_info_str = qla24xx_pci_info_str;
1375 ha->isp_ops.fw_version_str = qla24xx_fw_version_str;
1376 ha->isp_ops.intr_handler = qla24xx_intr_handler;
1377 ha->isp_ops.enable_intrs = qla24xx_enable_intrs;
1378 ha->isp_ops.disable_intrs = qla24xx_disable_intrs;
1379 ha->isp_ops.abort_command = qla24xx_abort_command;
1380 ha->isp_ops.abort_target = qla24xx_abort_target;
1381 ha->isp_ops.fabric_login = qla24xx_login_fabric;
1382 ha->isp_ops.fabric_logout = qla24xx_fabric_logout;
1383 ha->isp_ops.prep_ms_iocb = qla24xx_prep_ms_iocb;
1384 ha->isp_ops.prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb;
1385 ha->isp_ops.read_nvram = qla24xx_read_nvram_data;
1386 ha->isp_ops.write_nvram = qla24xx_write_nvram_data;
1387 ha->isp_ops.fw_dump = qla24xx_fw_dump;
1388 ha->isp_ops.ascii_fw_dump = qla24xx_ascii_fw_dump;
1389 ha->gid_list_info_size = 8;
1390 }
1391 host->can_queue = ha->request_q_length + 128;
1392
1393 /* load the F/W, read paramaters, and init the H/W */
1394 ha->instance = num_hosts;
1395
1396 init_MUTEX(&ha->mbx_cmd_sem);
1397 init_MUTEX_LOCKED(&ha->mbx_intr_sem);
1398
1399 INIT_LIST_HEAD(&ha->list);
1400 INIT_LIST_HEAD(&ha->fcports);
1401 INIT_LIST_HEAD(&ha->rscn_fcports);
1402
1403 /*
1404 * These locks are used to prevent more than one CPU
1405 * from modifying the queue at the same time. The
1406 * higher level "host_lock" will reduce most
1407 * contention for these locks.
1408 */
1409 spin_lock_init(&ha->mbx_reg_lock);
1410
1411 init_completion(&ha->dpc_inited);
1412 init_completion(&ha->dpc_exited);
1413
1414 qla2x00_config_dma_addressing(ha);
1415 if (qla2x00_mem_alloc(ha)) {
1416 qla_printk(KERN_WARNING, ha,
1417 "[ERROR] Failed to allocate memory for adapter\n");
1418
1419 ret = -ENOMEM;
1420 goto probe_failed;
1421 }
1422
1423 if (qla2x00_initialize_adapter(ha) &&
1424 !(ha->device_flags & DFLG_NO_CABLE)) {
1425
1426 qla_printk(KERN_WARNING, ha,
1427 "Failed to initialize adapter\n");
1428
1429 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
1430 "Adapter flags %x.\n",
1431 ha->host_no, ha->device_flags));
1432
1433 ret = -ENODEV;
1434 goto probe_failed;
1435 }
1436
1437 /*
1438 * Startup the kernel thread for this host adapter
1439 */
1440 ha->dpc_should_die = 0;
1441 ha->dpc_pid = kernel_thread(qla2x00_do_dpc, ha, 0);
1442 if (ha->dpc_pid < 0) {
1443 qla_printk(KERN_WARNING, ha,
1444 "Unable to start DPC thread!\n");
1445
1446 ret = -ENODEV;
1447 goto probe_failed;
1448 }
1449 wait_for_completion(&ha->dpc_inited);
1450
1451 host->this_id = 255;
1452 host->cmd_per_lun = 3;
1453 host->unique_id = ha->instance;
1454 host->max_cmd_len = MAX_CMDSZ;
1455 host->max_channel = ha->ports - 1;
1456 host->max_lun = MAX_LUNS;
1457 host->transportt = qla2xxx_transport_template;
1458
1459 ret = request_irq(pdev->irq, ha->isp_ops.intr_handler,
1460 SA_INTERRUPT|SA_SHIRQ, ha->brd_info->drv_name, ha);
1461 if (ret) {
1462 qla_printk(KERN_WARNING, ha,
1463 "Failed to reserve interrupt %d already in use.\n",
1464 pdev->irq);
1465 goto probe_failed;
1466 }
1467 host->irq = pdev->irq;
1468
1469 /* Initialized the timer */
1470 qla2x00_start_timer(ha, qla2x00_timer, WATCH_INTERVAL);
1471
1472 DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
1473 ha->host_no, ha));
1474
1475 ha->isp_ops.disable_intrs(ha);
1476
1477 spin_lock_irqsave(&ha->hardware_lock, flags);
1478 reg = ha->iobase;
1479 if (IS_QLA24XX(ha) || IS_QLA25XX(ha)) {
1480 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_HOST_INT);
1481 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_RISC_INT);
1482 } else {
1483 WRT_REG_WORD(&reg->isp.semaphore, 0);
1484 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_RISC_INT);
1485 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_HOST_INT);
1486
1487 /* Enable proper parity */
1488 if (!IS_QLA2100(ha) && !IS_QLA2200(ha)) {
1489 if (IS_QLA2300(ha))
1490 /* SRAM parity */
1491 WRT_REG_WORD(&reg->isp.hccr,
1492 (HCCR_ENABLE_PARITY + 0x1));
1493 else
1494 /* SRAM, Instruction RAM and GP RAM parity */
1495 WRT_REG_WORD(&reg->isp.hccr,
1496 (HCCR_ENABLE_PARITY + 0x7));
1497 }
1498 }
1499 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1500
1501 ha->isp_ops.enable_intrs(ha);
1502
1503 /* v2.19.5b6 */
1504 /*
1505 * Wait around max loop_reset_delay secs for the devices to come
1506 * on-line. We don't want Linux scanning before we are ready.
1507 *
1508 */
1509 for (wait_switch = jiffies + (ha->loop_reset_delay * HZ);
1510 time_before(jiffies,wait_switch) &&
1511 !(ha->device_flags & (DFLG_NO_CABLE | DFLG_FABRIC_DEVICES))
1512 && (ha->device_flags & SWITCH_FOUND) ;) {
1513
1514 qla2x00_check_fabric_devices(ha);
1515
1516 msleep(10);
1517 }
1518
1519 pci_set_drvdata(pdev, ha);
1520 ha->flags.init_done = 1;
1521 num_hosts++;
1522
1523 ret = scsi_add_host(host, &pdev->dev);
1524 if (ret)
1525 goto probe_failed;
1526
1527 qla2x00_alloc_sysfs_attr(ha);
1528
1529 qla2x00_init_host_attr(ha);
1530
1531 qla_printk(KERN_INFO, ha, "\n"
1532 " QLogic Fibre Channel HBA Driver: %s\n"
1533 " QLogic %s - %s\n"
1534 " %s: %s @ %s hdma%c, host#=%ld, fw=%s\n", qla2x00_version_str,
1535 ha->model_number, ha->model_desc ? ha->model_desc: "",
1536 ha->brd_info->isp_name, ha->isp_ops.pci_info_str(ha, pci_info),
1537 pci_name(pdev), ha->flags.enable_64bit_addressing ? '+': '-',
1538 ha->host_no, ha->isp_ops.fw_version_str(ha, fw_str));
1539
1540 /* Go with fc_rport registration. */
1541 list_for_each_entry(fcport, &ha->fcports, list)
1542 qla2x00_reg_remote_port(ha, fcport);
1543
1544 return 0;
1545
1546 probe_failed:
1547 qla2x00_free_device(ha);
1548
1549 scsi_host_put(host);
1550
1551 probe_disable_device:
1552 pci_disable_device(pdev);
1553
1554 probe_out:
1555 return ret;
1556 }
1557 EXPORT_SYMBOL_GPL(qla2x00_probe_one);
1558
1559 void qla2x00_remove_one(struct pci_dev *pdev)
1560 {
1561 scsi_qla_host_t *ha;
1562
1563 ha = pci_get_drvdata(pdev);
1564
1565 qla2x00_free_sysfs_attr(ha);
1566
1567 fc_remove_host(ha->host);
1568
1569 scsi_remove_host(ha->host);
1570
1571 qla2x00_free_device(ha);
1572
1573 scsi_host_put(ha->host);
1574
1575 pci_set_drvdata(pdev, NULL);
1576 }
1577 EXPORT_SYMBOL_GPL(qla2x00_remove_one);
1578
1579 static void
1580 qla2x00_free_device(scsi_qla_host_t *ha)
1581 {
1582 int ret;
1583
1584 /* Abort any outstanding IO descriptors. */
1585 if (!IS_QLA2100(ha) && !IS_QLA2200(ha))
1586 qla2x00_cancel_io_descriptors(ha);
1587
1588 /* Disable timer */
1589 if (ha->timer_active)
1590 qla2x00_stop_timer(ha);
1591
1592 /* Kill the kernel thread for this host */
1593 if (ha->dpc_pid >= 0) {
1594 ha->dpc_should_die = 1;
1595 wmb();
1596 ret = kill_proc(ha->dpc_pid, SIGHUP, 1);
1597 if (ret) {
1598 qla_printk(KERN_ERR, ha,
1599 "Unable to signal DPC thread -- (%d)\n", ret);
1600
1601 /* TODO: SOMETHING MORE??? */
1602 } else {
1603 wait_for_completion(&ha->dpc_exited);
1604 }
1605 }
1606
1607 /* Stop currently executing firmware. */
1608 qla2x00_stop_firmware(ha);
1609
1610 /* turn-off interrupts on the card */
1611 if (ha->interrupts_on)
1612 ha->isp_ops.disable_intrs(ha);
1613
1614 qla2x00_mem_free(ha);
1615
1616 ha->flags.online = 0;
1617
1618 /* Detach interrupts */
1619 if (ha->pdev->irq)
1620 free_irq(ha->pdev->irq, ha);
1621
1622 /* release io space registers */
1623 if (ha->iobase)
1624 iounmap(ha->iobase);
1625 pci_release_regions(ha->pdev);
1626
1627 pci_disable_device(ha->pdev);
1628 }
1629
1630 /*
1631 * qla2x00_mark_device_lost Updates fcport state when device goes offline.
1632 *
1633 * Input: ha = adapter block pointer. fcport = port structure pointer.
1634 *
1635 * Return: None.
1636 *
1637 * Context:
1638 */
1639 void qla2x00_mark_device_lost(scsi_qla_host_t *ha, fc_port_t *fcport,
1640 int do_login)
1641 {
1642 if (atomic_read(&fcport->state) == FCS_ONLINE && fcport->rport)
1643 schedule_work(&fcport->rport_del_work);
1644
1645 /*
1646 * We may need to retry the login, so don't change the state of the
1647 * port but do the retries.
1648 */
1649 if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
1650 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1651
1652 if (!do_login)
1653 return;
1654
1655 if (fcport->login_retry == 0) {
1656 fcport->login_retry = ha->login_retry_count;
1657 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
1658
1659 DEBUG(printk("scsi(%ld): Port login retry: "
1660 "%02x%02x%02x%02x%02x%02x%02x%02x, "
1661 "id = 0x%04x retry cnt=%d\n",
1662 ha->host_no,
1663 fcport->port_name[0],
1664 fcport->port_name[1],
1665 fcport->port_name[2],
1666 fcport->port_name[3],
1667 fcport->port_name[4],
1668 fcport->port_name[5],
1669 fcport->port_name[6],
1670 fcport->port_name[7],
1671 fcport->loop_id,
1672 fcport->login_retry));
1673 }
1674 }
1675
1676 /*
1677 * qla2x00_mark_all_devices_lost
1678 * Updates fcport state when device goes offline.
1679 *
1680 * Input:
1681 * ha = adapter block pointer.
1682 * fcport = port structure pointer.
1683 *
1684 * Return:
1685 * None.
1686 *
1687 * Context:
1688 */
1689 void
1690 qla2x00_mark_all_devices_lost(scsi_qla_host_t *ha)
1691 {
1692 fc_port_t *fcport;
1693
1694 list_for_each_entry(fcport, &ha->fcports, list) {
1695 if (fcport->port_type != FCT_TARGET)
1696 continue;
1697
1698 /*
1699 * No point in marking the device as lost, if the device is
1700 * already DEAD.
1701 */
1702 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
1703 continue;
1704 if (atomic_read(&fcport->state) == FCS_ONLINE && fcport->rport)
1705 schedule_work(&fcport->rport_del_work);
1706 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1707 }
1708 }
1709
1710 /*
1711 * qla2x00_mem_alloc
1712 * Allocates adapter memory.
1713 *
1714 * Returns:
1715 * 0 = success.
1716 * 1 = failure.
1717 */
1718 static uint8_t
1719 qla2x00_mem_alloc(scsi_qla_host_t *ha)
1720 {
1721 char name[16];
1722 uint8_t status = 1;
1723 int retry= 10;
1724
1725 do {
1726 /*
1727 * This will loop only once if everything goes well, else some
1728 * number of retries will be performed to get around a kernel
1729 * bug where available mem is not allocated until after a
1730 * little delay and a retry.
1731 */
1732 ha->request_ring = dma_alloc_coherent(&ha->pdev->dev,
1733 (ha->request_q_length + 1) * sizeof(request_t),
1734 &ha->request_dma, GFP_KERNEL);
1735 if (ha->request_ring == NULL) {
1736 qla_printk(KERN_WARNING, ha,
1737 "Memory Allocation failed - request_ring\n");
1738
1739 qla2x00_mem_free(ha);
1740 msleep(100);
1741
1742 continue;
1743 }
1744
1745 ha->response_ring = dma_alloc_coherent(&ha->pdev->dev,
1746 (ha->response_q_length + 1) * sizeof(response_t),
1747 &ha->response_dma, GFP_KERNEL);
1748 if (ha->response_ring == NULL) {
1749 qla_printk(KERN_WARNING, ha,
1750 "Memory Allocation failed - response_ring\n");
1751
1752 qla2x00_mem_free(ha);
1753 msleep(100);
1754
1755 continue;
1756 }
1757
1758 ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
1759 &ha->gid_list_dma, GFP_KERNEL);
1760 if (ha->gid_list == NULL) {
1761 qla_printk(KERN_WARNING, ha,
1762 "Memory Allocation failed - gid_list\n");
1763
1764 qla2x00_mem_free(ha);
1765 msleep(100);
1766
1767 continue;
1768 }
1769
1770 ha->rlc_rsp = dma_alloc_coherent(&ha->pdev->dev,
1771 sizeof(rpt_lun_cmd_rsp_t), &ha->rlc_rsp_dma, GFP_KERNEL);
1772 if (ha->rlc_rsp == NULL) {
1773 qla_printk(KERN_WARNING, ha,
1774 "Memory Allocation failed - rlc");
1775
1776 qla2x00_mem_free(ha);
1777 msleep(100);
1778
1779 continue;
1780 }
1781
1782 snprintf(name, sizeof(name), "qla2xxx_%ld", ha->host_no);
1783 ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
1784 DMA_POOL_SIZE, 8, 0);
1785 if (ha->s_dma_pool == NULL) {
1786 qla_printk(KERN_WARNING, ha,
1787 "Memory Allocation failed - s_dma_pool\n");
1788
1789 qla2x00_mem_free(ha);
1790 msleep(100);
1791
1792 continue;
1793 }
1794
1795 /* get consistent memory allocated for init control block */
1796 ha->init_cb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
1797 &ha->init_cb_dma);
1798 if (ha->init_cb == NULL) {
1799 qla_printk(KERN_WARNING, ha,
1800 "Memory Allocation failed - init_cb\n");
1801
1802 qla2x00_mem_free(ha);
1803 msleep(100);
1804
1805 continue;
1806 }
1807 memset(ha->init_cb, 0, ha->init_cb_size);
1808
1809 /* Get consistent memory allocated for Get Port Database cmd */
1810 ha->iodesc_pd = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
1811 &ha->iodesc_pd_dma);
1812 if (ha->iodesc_pd == NULL) {
1813 /* error */
1814 qla_printk(KERN_WARNING, ha,
1815 "Memory Allocation failed - iodesc_pd\n");
1816
1817 qla2x00_mem_free(ha);
1818 msleep(100);
1819
1820 continue;
1821 }
1822 memset(ha->iodesc_pd, 0, PORT_DATABASE_SIZE);
1823
1824 /* Allocate ioctl related memory. */
1825 if (qla2x00_alloc_ioctl_mem(ha)) {
1826 qla_printk(KERN_WARNING, ha,
1827 "Memory Allocation failed - ioctl_mem\n");
1828
1829 qla2x00_mem_free(ha);
1830 msleep(100);
1831
1832 continue;
1833 }
1834
1835 if (qla2x00_allocate_sp_pool(ha)) {
1836 qla_printk(KERN_WARNING, ha,
1837 "Memory Allocation failed - "
1838 "qla2x00_allocate_sp_pool()\n");
1839
1840 qla2x00_mem_free(ha);
1841 msleep(100);
1842
1843 continue;
1844 }
1845
1846 /* Allocate memory for SNS commands */
1847 if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
1848 /* Get consistent memory allocated for SNS commands */
1849 ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
1850 sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma,
1851 GFP_KERNEL);
1852 if (ha->sns_cmd == NULL) {
1853 /* error */
1854 qla_printk(KERN_WARNING, ha,
1855 "Memory Allocation failed - sns_cmd\n");
1856
1857 qla2x00_mem_free(ha);
1858 msleep(100);
1859
1860 continue;
1861 }
1862 memset(ha->sns_cmd, 0, sizeof(struct sns_cmd_pkt));
1863 } else {
1864 /* Get consistent memory allocated for MS IOCB */
1865 ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
1866 &ha->ms_iocb_dma);
1867 if (ha->ms_iocb == NULL) {
1868 /* error */
1869 qla_printk(KERN_WARNING, ha,
1870 "Memory Allocation failed - ms_iocb\n");
1871
1872 qla2x00_mem_free(ha);
1873 msleep(100);
1874
1875 continue;
1876 }
1877 memset(ha->ms_iocb, 0, sizeof(ms_iocb_entry_t));
1878
1879 /*
1880 * Get consistent memory allocated for CT SNS
1881 * commands
1882 */
1883 ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
1884 sizeof(struct ct_sns_pkt), &ha->ct_sns_dma,
1885 GFP_KERNEL);
1886 if (ha->ct_sns == NULL) {
1887 /* error */
1888 qla_printk(KERN_WARNING, ha,
1889 "Memory Allocation failed - ct_sns\n");
1890
1891 qla2x00_mem_free(ha);
1892 msleep(100);
1893
1894 continue;
1895 }
1896 memset(ha->ct_sns, 0, sizeof(struct ct_sns_pkt));
1897 }
1898
1899 /* Done all allocations without any error. */
1900 status = 0;
1901
1902 } while (retry-- && status != 0);
1903
1904 if (status) {
1905 printk(KERN_WARNING
1906 "%s(): **** FAILED ****\n", __func__);
1907 }
1908
1909 return(status);
1910 }
1911
1912 /*
1913 * qla2x00_mem_free
1914 * Frees all adapter allocated memory.
1915 *
1916 * Input:
1917 * ha = adapter block pointer.
1918 */
1919 static void
1920 qla2x00_mem_free(scsi_qla_host_t *ha)
1921 {
1922 struct list_head *fcpl, *fcptemp;
1923 fc_port_t *fcport;
1924 unsigned int wtime;/* max wait time if mbx cmd is busy. */
1925
1926 if (ha == NULL) {
1927 /* error */
1928 DEBUG2(printk("%s(): ERROR invalid ha pointer.\n", __func__));
1929 return;
1930 }
1931
1932 /* Make sure all other threads are stopped. */
1933 wtime = 60 * 1000;
1934 while (ha->dpc_wait && wtime)
1935 wtime = msleep_interruptible(wtime);
1936
1937 /* free ioctl memory */
1938 qla2x00_free_ioctl_mem(ha);
1939
1940 /* free sp pool */
1941 qla2x00_free_sp_pool(ha);
1942
1943 if (ha->sns_cmd)
1944 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
1945 ha->sns_cmd, ha->sns_cmd_dma);
1946
1947 if (ha->ct_sns)
1948 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
1949 ha->ct_sns, ha->ct_sns_dma);
1950
1951 if (ha->ms_iocb)
1952 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
1953
1954 if (ha->iodesc_pd)
1955 dma_pool_free(ha->s_dma_pool, ha->iodesc_pd, ha->iodesc_pd_dma);
1956
1957 if (ha->init_cb)
1958 dma_pool_free(ha->s_dma_pool, ha->init_cb, ha->init_cb_dma);
1959
1960 if (ha->s_dma_pool)
1961 dma_pool_destroy(ha->s_dma_pool);
1962
1963 if (ha->rlc_rsp)
1964 dma_free_coherent(&ha->pdev->dev,
1965 sizeof(rpt_lun_cmd_rsp_t), ha->rlc_rsp,
1966 ha->rlc_rsp_dma);
1967
1968 if (ha->gid_list)
1969 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
1970 ha->gid_list_dma);
1971
1972 if (ha->response_ring)
1973 dma_free_coherent(&ha->pdev->dev,
1974 (ha->response_q_length + 1) * sizeof(response_t),
1975 ha->response_ring, ha->response_dma);
1976
1977 if (ha->request_ring)
1978 dma_free_coherent(&ha->pdev->dev,
1979 (ha->request_q_length + 1) * sizeof(request_t),
1980 ha->request_ring, ha->request_dma);
1981
1982 ha->sns_cmd = NULL;
1983 ha->sns_cmd_dma = 0;
1984 ha->ct_sns = NULL;
1985 ha->ct_sns_dma = 0;
1986 ha->ms_iocb = NULL;
1987 ha->ms_iocb_dma = 0;
1988 ha->iodesc_pd = NULL;
1989 ha->iodesc_pd_dma = 0;
1990 ha->init_cb = NULL;
1991 ha->init_cb_dma = 0;
1992
1993 ha->s_dma_pool = NULL;
1994
1995 ha->rlc_rsp = NULL;
1996 ha->rlc_rsp_dma = 0;
1997 ha->gid_list = NULL;
1998 ha->gid_list_dma = 0;
1999
2000 ha->response_ring = NULL;
2001 ha->response_dma = 0;
2002 ha->request_ring = NULL;
2003 ha->request_dma = 0;
2004
2005 list_for_each_safe(fcpl, fcptemp, &ha->fcports) {
2006 fcport = list_entry(fcpl, fc_port_t, list);
2007
2008 /* fc ports */
2009 list_del_init(&fcport->list);
2010 kfree(fcport);
2011 }
2012 INIT_LIST_HEAD(&ha->fcports);
2013
2014 if (ha->fw_dump)
2015 free_pages((unsigned long)ha->fw_dump, ha->fw_dump_order);
2016
2017 vfree(ha->fw_dump24);
2018
2019 vfree(ha->fw_dump_buffer);
2020
2021 ha->fw_dump = NULL;
2022 ha->fw_dump24 = NULL;
2023 ha->fw_dumped = 0;
2024 ha->fw_dump_reading = 0;
2025 ha->fw_dump_buffer = NULL;
2026 }
2027
2028 /*
2029 * qla2x00_allocate_sp_pool
2030 * This routine is called during initialization to allocate
2031 * memory for local srb_t.
2032 *
2033 * Input:
2034 * ha = adapter block pointer.
2035 *
2036 * Context:
2037 * Kernel context.
2038 *
2039 * Note: Sets the ref_count for non Null sp to one.
2040 */
2041 static int
2042 qla2x00_allocate_sp_pool(scsi_qla_host_t *ha)
2043 {
2044 int rval;
2045
2046 rval = QLA_SUCCESS;
2047 ha->srb_mempool = mempool_create(SRB_MIN_REQ, mempool_alloc_slab,
2048 mempool_free_slab, srb_cachep);
2049 if (ha->srb_mempool == NULL) {
2050 qla_printk(KERN_INFO, ha, "Unable to allocate SRB mempool.\n");
2051 rval = QLA_FUNCTION_FAILED;
2052 }
2053 return (rval);
2054 }
2055
2056 /*
2057 * This routine frees all adapter allocated memory.
2058 *
2059 */
2060 static void
2061 qla2x00_free_sp_pool( scsi_qla_host_t *ha)
2062 {
2063 if (ha->srb_mempool) {
2064 mempool_destroy(ha->srb_mempool);
2065 ha->srb_mempool = NULL;
2066 }
2067 }
2068
2069 /**************************************************************************
2070 * qla2x00_do_dpc
2071 * This kernel thread is a task that is schedule by the interrupt handler
2072 * to perform the background processing for interrupts.
2073 *
2074 * Notes:
2075 * This task always run in the context of a kernel thread. It
2076 * is kick-off by the driver's detect code and starts up
2077 * up one per adapter. It immediately goes to sleep and waits for
2078 * some fibre event. When either the interrupt handler or
2079 * the timer routine detects a event it will one of the task
2080 * bits then wake us up.
2081 **************************************************************************/
2082 static int
2083 qla2x00_do_dpc(void *data)
2084 {
2085 DECLARE_MUTEX_LOCKED(sem);
2086 scsi_qla_host_t *ha;
2087 fc_port_t *fcport;
2088 uint8_t status;
2089 uint16_t next_loopid;
2090
2091 ha = (scsi_qla_host_t *)data;
2092
2093 lock_kernel();
2094
2095 daemonize("%s_dpc", ha->host_str);
2096 allow_signal(SIGHUP);
2097
2098 ha->dpc_wait = &sem;
2099
2100 set_user_nice(current, -20);
2101
2102 unlock_kernel();
2103
2104 complete(&ha->dpc_inited);
2105
2106 while (1) {
2107 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
2108
2109 if (down_interruptible(&sem))
2110 break;
2111
2112 if (ha->dpc_should_die)
2113 break;
2114
2115 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
2116
2117 /* Initialization not yet finished. Don't do anything yet. */
2118 if (!ha->flags.init_done || ha->dpc_active)
2119 continue;
2120
2121 DEBUG3(printk("scsi(%ld): DPC handler\n", ha->host_no));
2122
2123 ha->dpc_active = 1;
2124
2125 if (ha->flags.mbox_busy) {
2126 ha->dpc_active = 0;
2127 continue;
2128 }
2129
2130 if (test_and_clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) {
2131
2132 DEBUG(printk("scsi(%ld): dpc: sched "
2133 "qla2x00_abort_isp ha = %p\n",
2134 ha->host_no, ha));
2135 if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
2136 &ha->dpc_flags))) {
2137
2138 if (qla2x00_abort_isp(ha)) {
2139 /* failed. retry later */
2140 set_bit(ISP_ABORT_NEEDED,
2141 &ha->dpc_flags);
2142 }
2143 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2144 }
2145 DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
2146 ha->host_no));
2147 }
2148
2149 if (test_and_clear_bit(LOOP_RESET_NEEDED, &ha->dpc_flags)) {
2150 DEBUG(printk("scsi(%ld): dpc: sched loop_reset()\n",
2151 ha->host_no));
2152 qla2x00_loop_reset(ha);
2153 }
2154
2155 if (test_and_clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) &&
2156 (!(test_and_set_bit(RESET_ACTIVE, &ha->dpc_flags)))) {
2157
2158 DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
2159 ha->host_no));
2160
2161 qla2x00_rst_aen(ha);
2162 clear_bit(RESET_ACTIVE, &ha->dpc_flags);
2163 }
2164
2165 /* Retry each device up to login retry count */
2166 if ((test_and_clear_bit(RELOGIN_NEEDED, &ha->dpc_flags)) &&
2167 !test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) &&
2168 atomic_read(&ha->loop_state) != LOOP_DOWN) {
2169
2170 DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
2171 ha->host_no));
2172
2173 next_loopid = 0;
2174 list_for_each_entry(fcport, &ha->fcports, list) {
2175 if (fcport->port_type != FCT_TARGET)
2176 continue;
2177
2178 /*
2179 * If the port is not ONLINE then try to login
2180 * to it if we haven't run out of retries.
2181 */
2182 if (atomic_read(&fcport->state) != FCS_ONLINE &&
2183 fcport->login_retry) {
2184
2185 fcport->login_retry--;
2186 if (fcport->flags & FCF_FABRIC_DEVICE) {
2187 if (fcport->flags &
2188 FCF_TAPE_PRESENT)
2189 ha->isp_ops.fabric_logout(
2190 ha, fcport->loop_id,
2191 fcport->d_id.b.domain,
2192 fcport->d_id.b.area,
2193 fcport->d_id.b.al_pa);
2194 status = qla2x00_fabric_login(
2195 ha, fcport, &next_loopid);
2196 } else
2197 status =
2198 qla2x00_local_device_login(
2199 ha, fcport->loop_id);
2200
2201 if (status == QLA_SUCCESS) {
2202 fcport->old_loop_id = fcport->loop_id;
2203
2204 DEBUG(printk("scsi(%ld): port login OK: logged in ID 0x%x\n",
2205 ha->host_no, fcport->loop_id));
2206
2207 fcport->port_login_retry_count =
2208 ha->port_down_retry_count * PORT_RETRY_TIME;
2209 atomic_set(&fcport->state, FCS_ONLINE);
2210 atomic_set(&fcport->port_down_timer,
2211 ha->port_down_retry_count * PORT_RETRY_TIME);
2212
2213 fcport->login_retry = 0;
2214 } else if (status == 1) {
2215 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
2216 /* retry the login again */
2217 DEBUG(printk("scsi(%ld): Retrying %d login again loop_id 0x%x\n",
2218 ha->host_no,
2219 fcport->login_retry, fcport->loop_id));
2220 } else {
2221 fcport->login_retry = 0;
2222 }
2223 }
2224 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2225 break;
2226 }
2227 DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
2228 ha->host_no));
2229 }
2230
2231 if ((test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags)) &&
2232 atomic_read(&ha->loop_state) != LOOP_DOWN) {
2233
2234 clear_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags);
2235 DEBUG(printk("scsi(%ld): qla2x00_login_retry()\n",
2236 ha->host_no));
2237
2238 set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
2239
2240 DEBUG(printk("scsi(%ld): qla2x00_login_retry - end\n",
2241 ha->host_no));
2242 }
2243
2244 if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
2245
2246 DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
2247 ha->host_no));
2248
2249 if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
2250 &ha->dpc_flags))) {
2251
2252 qla2x00_loop_resync(ha);
2253
2254 clear_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags);
2255 }
2256
2257 DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
2258 ha->host_no));
2259 }
2260
2261 if (test_and_clear_bit(FCPORT_RESCAN_NEEDED, &ha->dpc_flags)) {
2262
2263 DEBUG(printk("scsi(%ld): Rescan flagged fcports...\n",
2264 ha->host_no));
2265
2266 qla2x00_rescan_fcports(ha);
2267
2268 DEBUG(printk("scsi(%ld): Rescan flagged fcports..."
2269 "end.\n",
2270 ha->host_no));
2271 }
2272
2273 if (!ha->interrupts_on)
2274 ha->isp_ops.enable_intrs(ha);
2275
2276 ha->dpc_active = 0;
2277 } /* End of while(1) */
2278
2279 DEBUG(printk("scsi(%ld): DPC handler exiting\n", ha->host_no));
2280
2281 /*
2282 * Make sure that nobody tries to wake us up again.
2283 */
2284 ha->dpc_wait = NULL;
2285 ha->dpc_active = 0;
2286
2287 complete_and_exit(&ha->dpc_exited, 0);
2288 }
2289
2290 /*
2291 * qla2x00_rst_aen
2292 * Processes asynchronous reset.
2293 *
2294 * Input:
2295 * ha = adapter block pointer.
2296 */
2297 static void
2298 qla2x00_rst_aen(scsi_qla_host_t *ha)
2299 {
2300 if (ha->flags.online && !ha->flags.reset_active &&
2301 !atomic_read(&ha->loop_down_timer) &&
2302 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) {
2303 do {
2304 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
2305
2306 /*
2307 * Issue marker command only when we are going to start
2308 * the I/O.
2309 */
2310 ha->marker_needed = 1;
2311 } while (!atomic_read(&ha->loop_down_timer) &&
2312 (test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags)));
2313 }
2314 }
2315
2316 static void
2317 qla2x00_sp_free_dma(scsi_qla_host_t *ha, srb_t *sp)
2318 {
2319 struct scsi_cmnd *cmd = sp->cmd;
2320
2321 if (sp->flags & SRB_DMA_VALID) {
2322 if (cmd->use_sg) {
2323 dma_unmap_sg(&ha->pdev->dev, cmd->request_buffer,
2324 cmd->use_sg, cmd->sc_data_direction);
2325 } else if (cmd->request_bufflen) {
2326 dma_unmap_single(&ha->pdev->dev, sp->dma_handle,
2327 cmd->request_bufflen, cmd->sc_data_direction);
2328 }
2329 sp->flags &= ~SRB_DMA_VALID;
2330 }
2331 CMD_SP(cmd) = NULL;
2332 }
2333
2334 void
2335 qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *sp)
2336 {
2337 struct scsi_cmnd *cmd = sp->cmd;
2338
2339 qla2x00_sp_free_dma(ha, sp);
2340
2341 mempool_free(sp, ha->srb_mempool);
2342
2343 cmd->scsi_done(cmd);
2344 }
2345
2346 /**************************************************************************
2347 * qla2x00_timer
2348 *
2349 * Description:
2350 * One second timer
2351 *
2352 * Context: Interrupt
2353 ***************************************************************************/
2354 static void
2355 qla2x00_timer(scsi_qla_host_t *ha)
2356 {
2357 unsigned long cpu_flags = 0;
2358 fc_port_t *fcport;
2359 int start_dpc = 0;
2360 int index;
2361 srb_t *sp;
2362 int t;
2363
2364 /*
2365 * Ports - Port down timer.
2366 *
2367 * Whenever, a port is in the LOST state we start decrementing its port
2368 * down timer every second until it reaches zero. Once it reaches zero
2369 * the port it marked DEAD.
2370 */
2371 t = 0;
2372 list_for_each_entry(fcport, &ha->fcports, list) {
2373 if (fcport->port_type != FCT_TARGET)
2374 continue;
2375
2376 if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
2377
2378 if (atomic_read(&fcport->port_down_timer) == 0)
2379 continue;
2380
2381 if (atomic_dec_and_test(&fcport->port_down_timer) != 0)
2382 atomic_set(&fcport->state, FCS_DEVICE_DEAD);
2383
2384 DEBUG(printk("scsi(%ld): fcport-%d - port retry count: "
2385 "%d remaining\n",
2386 ha->host_no,
2387 t, atomic_read(&fcport->port_down_timer)));
2388 }
2389 t++;
2390 } /* End of for fcport */
2391
2392
2393 /* Loop down handler. */
2394 if (atomic_read(&ha->loop_down_timer) > 0 &&
2395 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags)) && ha->flags.online) {
2396
2397 if (atomic_read(&ha->loop_down_timer) ==
2398 ha->loop_down_abort_time) {
2399
2400 DEBUG(printk("scsi(%ld): Loop Down - aborting the "
2401 "queues before time expire\n",
2402 ha->host_no));
2403
2404 if (!IS_QLA2100(ha) && ha->link_down_timeout)
2405 atomic_set(&ha->loop_state, LOOP_DEAD);
2406
2407 /* Schedule an ISP abort to return any tape commands. */
2408 spin_lock_irqsave(&ha->hardware_lock, cpu_flags);
2409 for (index = 1; index < MAX_OUTSTANDING_COMMANDS;
2410 index++) {
2411 fc_port_t *sfcp;
2412
2413 sp = ha->outstanding_cmds[index];
2414 if (!sp)
2415 continue;
2416 sfcp = sp->fcport;
2417 if (!(sfcp->flags & FCF_TAPE_PRESENT))
2418 continue;
2419
2420 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2421 break;
2422 }
2423 spin_unlock_irqrestore(&ha->hardware_lock, cpu_flags);
2424
2425 set_bit(ABORT_QUEUES_NEEDED, &ha->dpc_flags);
2426 start_dpc++;
2427 }
2428
2429 /* if the loop has been down for 4 minutes, reinit adapter */
2430 if (atomic_dec_and_test(&ha->loop_down_timer) != 0) {
2431 DEBUG(printk("scsi(%ld): Loop down exceed 4 mins - "
2432 "restarting queues.\n",
2433 ha->host_no));
2434
2435 set_bit(RESTART_QUEUES_NEEDED, &ha->dpc_flags);
2436 start_dpc++;
2437
2438 if (!(ha->device_flags & DFLG_NO_CABLE)) {
2439 DEBUG(printk("scsi(%ld): Loop down - "
2440 "aborting ISP.\n",
2441 ha->host_no));
2442 qla_printk(KERN_WARNING, ha,
2443 "Loop down - aborting ISP.\n");
2444
2445 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2446 }
2447 }
2448 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
2449 ha->host_no,
2450 atomic_read(&ha->loop_down_timer)));
2451 }
2452
2453 /* Schedule the DPC routine if needed */
2454 if ((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags) ||
2455 test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) ||
2456 test_bit(LOOP_RESET_NEEDED, &ha->dpc_flags) ||
2457 start_dpc ||
2458 test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags) ||
2459 test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) ||
2460 test_bit(RELOGIN_NEEDED, &ha->dpc_flags)) &&
2461 ha->dpc_wait && !ha->dpc_active) {
2462
2463 up(ha->dpc_wait);
2464 }
2465
2466 qla2x00_restart_timer(ha, WATCH_INTERVAL);
2467 }
2468
2469 /* XXX(hch): crude hack to emulate a down_timeout() */
2470 int
2471 qla2x00_down_timeout(struct semaphore *sema, unsigned long timeout)
2472 {
2473 const unsigned int step = 100; /* msecs */
2474 unsigned int iterations = jiffies_to_msecs(timeout)/100;
2475
2476 do {
2477 if (!down_trylock(sema))
2478 return 0;
2479 if (msleep_interruptible(step))
2480 break;
2481 } while (--iterations >= 0);
2482
2483 return -ETIMEDOUT;
2484 }
2485
2486 static struct qla_board_info qla_board_tbl[] = {
2487 {
2488 .drv_name = "qla2400",
2489 .isp_name = "ISP2422",
2490 .fw_fname = "ql2400_fw.bin",
2491 .sht = &qla24xx_driver_template,
2492 },
2493 {
2494 .drv_name = "qla2400",
2495 .isp_name = "ISP2432",
2496 .fw_fname = "ql2400_fw.bin",
2497 .sht = &qla24xx_driver_template,
2498 },
2499 };
2500
2501 static struct pci_device_id qla2xxx_pci_tbl[] = {
2502 {
2503 .vendor = PCI_VENDOR_ID_QLOGIC,
2504 .device = PCI_DEVICE_ID_QLOGIC_ISP2422,
2505 .subvendor = PCI_ANY_ID,
2506 .subdevice = PCI_ANY_ID,
2507 .driver_data = (unsigned long)&qla_board_tbl[0],
2508 },
2509 {
2510 .vendor = PCI_VENDOR_ID_QLOGIC,
2511 .device = PCI_DEVICE_ID_QLOGIC_ISP2432,
2512 .subvendor = PCI_ANY_ID,
2513 .subdevice = PCI_ANY_ID,
2514 .driver_data = (unsigned long)&qla_board_tbl[1],
2515 },
2516 {0, 0},
2517 };
2518 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
2519
2520 static int __devinit
2521 qla2xxx_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
2522 {
2523 return qla2x00_probe_one(pdev,
2524 (struct qla_board_info *)id->driver_data);
2525 }
2526
2527 static void __devexit
2528 qla2xxx_remove_one(struct pci_dev *pdev)
2529 {
2530 qla2x00_remove_one(pdev);
2531 }
2532
2533 static struct pci_driver qla2xxx_pci_driver = {
2534 .name = "qla2xxx",
2535 .id_table = qla2xxx_pci_tbl,
2536 .probe = qla2xxx_probe_one,
2537 .remove = __devexit_p(qla2xxx_remove_one),
2538 };
2539
2540 /**
2541 * qla2x00_module_init - Module initialization.
2542 **/
2543 static int __init
2544 qla2x00_module_init(void)
2545 {
2546 int ret = 0;
2547
2548 /* Allocate cache for SRBs. */
2549 srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
2550 SLAB_HWCACHE_ALIGN, NULL, NULL);
2551 if (srb_cachep == NULL) {
2552 printk(KERN_ERR
2553 "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
2554 return -ENOMEM;
2555 }
2556
2557 /* Derive version string. */
2558 strcpy(qla2x00_version_str, QLA2XXX_VERSION);
2559 #if DEBUG_QLA2100
2560 strcat(qla2x00_version_str, "-debug");
2561 #endif
2562 qla2xxx_transport_template =
2563 fc_attach_transport(&qla2xxx_transport_functions);
2564 if (!qla2xxx_transport_template)
2565 return -ENODEV;
2566
2567 printk(KERN_INFO "QLogic Fibre Channel HBA Driver\n");
2568 ret = pci_module_init(&qla2xxx_pci_driver);
2569 if (ret) {
2570 kmem_cache_destroy(srb_cachep);
2571 fc_release_transport(qla2xxx_transport_template);
2572 }
2573 return ret;
2574 }
2575
2576 /**
2577 * qla2x00_module_exit - Module cleanup.
2578 **/
2579 static void __exit
2580 qla2x00_module_exit(void)
2581 {
2582 pci_unregister_driver(&qla2xxx_pci_driver);
2583 kmem_cache_destroy(srb_cachep);
2584 fc_release_transport(qla2xxx_transport_template);
2585 }
2586
2587 module_init(qla2x00_module_init);
2588 module_exit(qla2x00_module_exit);
2589
2590 MODULE_AUTHOR("QLogic Corporation");
2591 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
2592 MODULE_LICENSE("GPL");
2593 MODULE_VERSION(QLA2XXX_VERSION);
Linux kernel - Deliverables
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