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[SCSI] qla2xxx: put back label erroneously removed by eh_active patch
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / scsi / qla2xxx / qla_os.c
blobd9eccdf4f403e88cab800fd77750f30c8b41cf1a
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 srb_t *sp;
352 int rval;
353
354 if (!fcport) {
355 cmd->result = DID_NO_CONNECT << 16;
356 goto qc_fail_command;
357 }
358
359 if (atomic_read(&fcport->state) != FCS_ONLINE) {
360 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
361 atomic_read(&ha->loop_state) == LOOP_DEAD) {
362 cmd->result = DID_NO_CONNECT << 16;
363 goto qc_fail_command;
364 }
365 goto qc_host_busy;
366 }
367
368 spin_unlock_irq(ha->host->host_lock);
369
370 sp = qla2x00_get_new_sp(ha, fcport, cmd, done);
371 if (!sp)
372 goto qc_host_busy_lock;
373
374 rval = qla2x00_start_scsi(sp);
375 if (rval != QLA_SUCCESS)
376 goto qc_host_busy_free_sp;
377
378 spin_lock_irq(ha->host->host_lock);
379
380 return 0;
381
382 qc_host_busy_free_sp:
383 qla2x00_sp_free_dma(ha, sp);
384 mempool_free(sp, ha->srb_mempool);
385
386 qc_host_busy_lock:
387 spin_lock_irq(ha->host->host_lock);
388
389 qc_host_busy:
390 return SCSI_MLQUEUE_HOST_BUSY;
391
392 qc_fail_command:
393 done(cmd);
394
395 return 0;
396 }
397
398
399 static int
400 qla24xx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
401 {
402 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
403 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
404 srb_t *sp;
405 int rval;
406
407 if (!fcport) {
408 cmd->result = DID_NO_CONNECT << 16;
409 goto qc24_fail_command;
410 }
411
412 if (atomic_read(&fcport->state) != FCS_ONLINE) {
413 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
414 atomic_read(&ha->loop_state) == LOOP_DEAD) {
415 cmd->result = DID_NO_CONNECT << 16;
416 goto qc24_fail_command;
417 }
418 goto qc24_host_busy;
419 }
420
421 spin_unlock_irq(ha->host->host_lock);
422
423 sp = qla2x00_get_new_sp(ha, fcport, cmd, done);
424 if (!sp)
425 goto qc24_host_busy_lock;
426
427 rval = qla24xx_start_scsi(sp);
428 if (rval != QLA_SUCCESS)
429 goto qc24_host_busy_free_sp;
430
431 spin_lock_irq(ha->host->host_lock);
432
433 return 0;
434
435 qc24_host_busy_free_sp:
436 qla2x00_sp_free_dma(ha, sp);
437 mempool_free(sp, ha->srb_mempool);
438
439 qc24_host_busy_lock:
440 spin_lock_irq(ha->host->host_lock);
441
442 qc24_host_busy:
443 return SCSI_MLQUEUE_HOST_BUSY;
444
445 qc24_fail_command:
446 done(cmd);
447
448 return 0;
449 }
450
451
452 /*
453 * qla2x00_eh_wait_on_command
454 * Waits for the command to be returned by the Firmware for some
455 * max time.
456 *
457 * Input:
458 * ha = actual ha whose done queue will contain the command
459 * returned by firmware.
460 * cmd = Scsi Command to wait on.
461 * flag = Abort/Reset(Bus or Device Reset)
462 *
463 * Return:
464 * Not Found : 0
465 * Found : 1
466 */
467 static int
468 qla2x00_eh_wait_on_command(scsi_qla_host_t *ha, struct scsi_cmnd *cmd)
469 {
470 #define ABORT_POLLING_PERIOD 1000
471 #define ABORT_WAIT_ITER ((10 * 1000) / (ABORT_POLLING_PERIOD))
472 unsigned long wait_iter = ABORT_WAIT_ITER;
473 int ret = QLA_SUCCESS;
474
475 while (CMD_SP(cmd)) {
476 msleep(ABORT_POLLING_PERIOD);
477
478 if (--wait_iter)
479 break;
480 }
481 if (CMD_SP(cmd))
482 ret = QLA_FUNCTION_FAILED;
483
484 return ret;
485 }
486
487 /*
488 * qla2x00_wait_for_hba_online
489 * Wait till the HBA is online after going through
490 * <= MAX_RETRIES_OF_ISP_ABORT or
491 * finally HBA is disabled ie marked offline
492 *
493 * Input:
494 * ha - pointer to host adapter structure
495 *
496 * Note:
497 * Does context switching-Release SPIN_LOCK
498 * (if any) before calling this routine.
499 *
500 * Return:
501 * Success (Adapter is online) : 0
502 * Failed (Adapter is offline/disabled) : 1
503 */
504 static int
505 qla2x00_wait_for_hba_online(scsi_qla_host_t *ha)
506 {
507 int return_status;
508 unsigned long wait_online;
509
510 wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
511 while (((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) ||
512 test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags) ||
513 test_bit(ISP_ABORT_RETRY, &ha->dpc_flags) ||
514 ha->dpc_active) && time_before(jiffies, wait_online)) {
515
516 msleep(1000);
517 }
518 if (ha->flags.online)
519 return_status = QLA_SUCCESS;
520 else
521 return_status = QLA_FUNCTION_FAILED;
522
523 DEBUG2(printk("%s return_status=%d\n",__func__,return_status));
524
525 return (return_status);
526 }
527
528 /*
529 * qla2x00_wait_for_loop_ready
530 * Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
531 * to be in LOOP_READY state.
532 * Input:
533 * ha - pointer to host adapter structure
534 *
535 * Note:
536 * Does context switching-Release SPIN_LOCK
537 * (if any) before calling this routine.
538 *
539 *
540 * Return:
541 * Success (LOOP_READY) : 0
542 * Failed (LOOP_NOT_READY) : 1
543 */
544 static inline int
545 qla2x00_wait_for_loop_ready(scsi_qla_host_t *ha)
546 {
547 int return_status = QLA_SUCCESS;
548 unsigned long loop_timeout ;
549
550 /* wait for 5 min at the max for loop to be ready */
551 loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ);
552
553 while ((!atomic_read(&ha->loop_down_timer) &&
554 atomic_read(&ha->loop_state) == LOOP_DOWN) ||
555 atomic_read(&ha->loop_state) != LOOP_READY) {
556 msleep(1000);
557 if (time_after_eq(jiffies, loop_timeout)) {
558 return_status = QLA_FUNCTION_FAILED;
559 break;
560 }
561 }
562 return (return_status);
563 }
564
565 /**************************************************************************
566 * qla2xxx_eh_abort
567 *
568 * Description:
569 * The abort function will abort the specified command.
570 *
571 * Input:
572 * cmd = Linux SCSI command packet to be aborted.
573 *
574 * Returns:
575 * Either SUCCESS or FAILED.
576 *
577 * Note:
578 **************************************************************************/
579 int
580 qla2xxx_eh_abort(struct scsi_cmnd *cmd)
581 {
582 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
583 srb_t *sp;
584 int ret, i;
585 unsigned int id, lun;
586 unsigned long serial;
587 unsigned long flags;
588
589 if (!CMD_SP(cmd))
590 return FAILED;
591
592 ret = FAILED;
593
594 id = cmd->device->id;
595 lun = cmd->device->lun;
596 serial = cmd->serial_number;
597
598 /* Check active list for command command. */
599 spin_lock_irqsave(&ha->hardware_lock, flags);
600 for (i = 1; i < MAX_OUTSTANDING_COMMANDS; i++) {
601 sp = ha->outstanding_cmds[i];
602
603 if (sp == NULL)
604 continue;
605
606 if (sp->cmd != cmd)
607 continue;
608
609 DEBUG2(printk("%s(%ld): aborting sp %p from RISC. pid=%ld "
610 "sp->state=%x\n", __func__, ha->host_no, sp, serial,
611 sp->state));
612 DEBUG3(qla2x00_print_scsi_cmd(cmd);)
613
614 spin_unlock_irqrestore(&ha->hardware_lock, flags);
615 if (ha->isp_ops.abort_command(ha, sp)) {
616 DEBUG2(printk("%s(%ld): abort_command "
617 "mbx failed.\n", __func__, ha->host_no));
618 } else {
619 DEBUG3(printk("%s(%ld): abort_command "
620 "mbx success.\n", __func__, ha->host_no));
621 ret = SUCCESS;
622 }
623 spin_lock_irqsave(&ha->hardware_lock, flags);
624
625 break;
626 }
627 spin_unlock_irqrestore(&ha->hardware_lock, flags);
628
629 /* Wait for the command to be returned. */
630 if (ret == SUCCESS) {
631 if (qla2x00_eh_wait_on_command(ha, cmd) != QLA_SUCCESS) {
632 qla_printk(KERN_ERR, ha,
633 "scsi(%ld:%d:%d): Abort handler timed out -- %lx "
634 "%x.\n", ha->host_no, id, lun, serial, ret);
635 }
636 }
637
638 qla_printk(KERN_INFO, ha,
639 "scsi(%ld:%d:%d): Abort command issued -- %lx %x.\n", ha->host_no,
640 id, lun, serial, ret);
641
642 return ret;
643 }
644
645 /**************************************************************************
646 * qla2x00_eh_wait_for_pending_target_commands
647 *
648 * Description:
649 * Waits for all the commands to come back from the specified target.
650 *
651 * Input:
652 * ha - pointer to scsi_qla_host structure.
653 * t - target
654 * Returns:
655 * Either SUCCESS or FAILED.
656 *
657 * Note:
658 **************************************************************************/
659 static int
660 qla2x00_eh_wait_for_pending_target_commands(scsi_qla_host_t *ha, unsigned int t)
661 {
662 int cnt;
663 int status;
664 srb_t *sp;
665 struct scsi_cmnd *cmd;
666 unsigned long flags;
667
668 status = 0;
669
670 /*
671 * Waiting for all commands for the designated target in the active
672 * array
673 */
674 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
675 spin_lock_irqsave(&ha->hardware_lock, flags);
676 sp = ha->outstanding_cmds[cnt];
677 if (sp) {
678 cmd = sp->cmd;
679 spin_unlock_irqrestore(&ha->hardware_lock, flags);
680 if (cmd->device->id == t) {
681 if (!qla2x00_eh_wait_on_command(ha, cmd)) {
682 status = 1;
683 break;
684 }
685 }
686 } else {
687 spin_unlock_irqrestore(&ha->hardware_lock, flags);
688 }
689 }
690 return (status);
691 }
692
693
694 /**************************************************************************
695 * qla2xxx_eh_device_reset
696 *
697 * Description:
698 * The device reset function will reset the target and abort any
699 * executing commands.
700 *
701 * NOTE: The use of SP is undefined within this context. Do *NOT*
702 * attempt to use this value, even if you determine it is
703 * non-null.
704 *
705 * Input:
706 * cmd = Linux SCSI command packet of the command that cause the
707 * bus device reset.
708 *
709 * Returns:
710 * SUCCESS/FAILURE (defined as macro in scsi.h).
711 *
712 **************************************************************************/
713 int
714 qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
715 {
716 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
717 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
718 srb_t *sp;
719 int ret;
720 unsigned int id, lun;
721 unsigned long serial;
722
723 ret = FAILED;
724
725 id = cmd->device->id;
726 lun = cmd->device->lun;
727 serial = cmd->serial_number;
728
729 sp = (srb_t *) CMD_SP(cmd);
730 if (!sp || !fcport)
731 return ret;
732
733 qla_printk(KERN_INFO, ha,
734 "scsi(%ld:%d:%d): DEVICE RESET ISSUED.\n", ha->host_no, id, lun);
735
736 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
737 goto eh_dev_reset_done;
738
739 if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
740 if (qla2x00_device_reset(ha, fcport) == 0)
741 ret = SUCCESS;
742
743 #if defined(LOGOUT_AFTER_DEVICE_RESET)
744 if (ret == SUCCESS) {
745 if (fcport->flags & FC_FABRIC_DEVICE) {
746 ha->isp_ops.fabric_logout(ha, fcport->loop_id);
747 qla2x00_mark_device_lost(ha, fcport);
748 }
749 }
750 #endif
751 } else {
752 DEBUG2(printk(KERN_INFO
753 "%s failed: loop not ready\n",__func__);)
754 }
755
756 if (ret == FAILED) {
757 DEBUG3(printk("%s(%ld): device reset failed\n",
758 __func__, ha->host_no));
759 qla_printk(KERN_INFO, ha, "%s: device reset failed\n",
760 __func__);
761
762 goto eh_dev_reset_done;
763 }
764
765 /* Flush outstanding commands. */
766 if (qla2x00_eh_wait_for_pending_target_commands(ha, id))
767 ret = FAILED;
768 if (ret == FAILED) {
769 DEBUG3(printk("%s(%ld): failed while waiting for commands\n",
770 __func__, ha->host_no));
771 qla_printk(KERN_INFO, ha,
772 "%s: failed while waiting for commands\n", __func__);
773 } else
774 qla_printk(KERN_INFO, ha,
775 "scsi(%ld:%d:%d): DEVICE RESET SUCCEEDED.\n", ha->host_no,
776 id, lun);
777 eh_dev_reset_done:
778 return ret;
779 }
780
781 /**************************************************************************
782 * qla2x00_eh_wait_for_pending_commands
783 *
784 * Description:
785 * Waits for all the commands to come back from the specified host.
786 *
787 * Input:
788 * ha - pointer to scsi_qla_host structure.
789 *
790 * Returns:
791 * 1 : SUCCESS
792 * 0 : FAILED
793 *
794 * Note:
795 **************************************************************************/
796 static int
797 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *ha)
798 {
799 int cnt;
800 int status;
801 srb_t *sp;
802 struct scsi_cmnd *cmd;
803 unsigned long flags;
804
805 status = 1;
806
807 /*
808 * Waiting for all commands for the designated target in the active
809 * array
810 */
811 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
812 spin_lock_irqsave(&ha->hardware_lock, flags);
813 sp = ha->outstanding_cmds[cnt];
814 if (sp) {
815 cmd = sp->cmd;
816 spin_unlock_irqrestore(&ha->hardware_lock, flags);
817 status = qla2x00_eh_wait_on_command(ha, cmd);
818 if (status == 0)
819 break;
820 }
821 else {
822 spin_unlock_irqrestore(&ha->hardware_lock, flags);
823 }
824 }
825 return (status);
826 }
827
828
829 /**************************************************************************
830 * qla2xxx_eh_bus_reset
831 *
832 * Description:
833 * The bus reset function will reset the bus and abort any executing
834 * commands.
835 *
836 * Input:
837 * cmd = Linux SCSI command packet of the command that cause the
838 * bus reset.
839 *
840 * Returns:
841 * SUCCESS/FAILURE (defined as macro in scsi.h).
842 *
843 **************************************************************************/
844 int
845 qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
846 {
847 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
848 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
849 srb_t *sp;
850 int ret;
851 unsigned int id, lun;
852 unsigned long serial;
853
854 ret = FAILED;
855
856 id = cmd->device->id;
857 lun = cmd->device->lun;
858 serial = cmd->serial_number;
859
860 sp = (srb_t *) CMD_SP(cmd);
861 if (!sp || !fcport)
862 return ret;
863
864 qla_printk(KERN_INFO, ha,
865 "scsi(%ld:%d:%d): LOOP RESET ISSUED.\n", ha->host_no, id, lun);
866
867 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS) {
868 DEBUG2(printk("%s failed:board disabled\n",__func__));
869 goto eh_bus_reset_done;
870 }
871
872 if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
873 if (qla2x00_loop_reset(ha) == QLA_SUCCESS)
874 ret = SUCCESS;
875 }
876 if (ret == FAILED)
877 goto eh_bus_reset_done;
878
879 /* Flush outstanding commands. */
880 if (!qla2x00_eh_wait_for_pending_commands(ha))
881 ret = FAILED;
882
883 eh_bus_reset_done:
884 qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
885 (ret == FAILED) ? "failed" : "succeded");
886
887 return ret;
888 }
889
890 /**************************************************************************
891 * qla2xxx_eh_host_reset
892 *
893 * Description:
894 * The reset function will reset the Adapter.
895 *
896 * Input:
897 * cmd = Linux SCSI command packet of the command that cause the
898 * adapter reset.
899 *
900 * Returns:
901 * Either SUCCESS or FAILED.
902 *
903 * Note:
904 **************************************************************************/
905 int
906 qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
907 {
908 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
909 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
910 srb_t *sp;
911 int ret;
912 unsigned int id, lun;
913 unsigned long serial;
914
915 ret = FAILED;
916
917 id = cmd->device->id;
918 lun = cmd->device->lun;
919 serial = cmd->serial_number;
920
921 sp = (srb_t *) CMD_SP(cmd);
922 if (!sp || !fcport)
923 return ret;
924
925 qla_printk(KERN_INFO, ha,
926 "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", ha->host_no, id, lun);
927
928 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
929 goto eh_host_reset_lock;
930
931 /*
932 * Fixme-may be dpc thread is active and processing
933 * loop_resync,so wait a while for it to
934 * be completed and then issue big hammer.Otherwise
935 * it may cause I/O failure as big hammer marks the
936 * devices as lost kicking of the port_down_timer
937 * while dpc is stuck for the mailbox to complete.
938 */
939 qla2x00_wait_for_loop_ready(ha);
940 set_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
941 if (qla2x00_abort_isp(ha)) {
942 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
943 /* failed. schedule dpc to try */
944 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
945
946 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
947 goto eh_host_reset_lock;
948 }
949 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
950
951 /* Waiting for our command in done_queue to be returned to OS.*/
952 if (qla2x00_eh_wait_for_pending_commands(ha))
953 ret = SUCCESS;
954
955 eh_host_reset_lock:
956 qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
957 (ret == FAILED) ? "failed" : "succeded");
958
959 return ret;
960 }
961
962 /*
963 * qla2x00_loop_reset
964 * Issue loop reset.
965 *
966 * Input:
967 * ha = adapter block pointer.
968 *
969 * Returns:
970 * 0 = success
971 */
972 static int
973 qla2x00_loop_reset(scsi_qla_host_t *ha)
974 {
975 int status = QLA_SUCCESS;
976 struct fc_port *fcport;
977
978 if (ha->flags.enable_lip_reset) {
979 status = qla2x00_lip_reset(ha);
980 }
981
982 if (status == QLA_SUCCESS && ha->flags.enable_target_reset) {
983 list_for_each_entry(fcport, &ha->fcports, list) {
984 if (fcport->port_type != FCT_TARGET)
985 continue;
986
987 status = qla2x00_device_reset(ha, fcport);
988 if (status != QLA_SUCCESS)
989 break;
990 }
991 }
992
993 if (status == QLA_SUCCESS &&
994 ((!ha->flags.enable_target_reset &&
995 !ha->flags.enable_lip_reset) ||
996 ha->flags.enable_lip_full_login)) {
997
998 status = qla2x00_full_login_lip(ha);
999 }
1000
1001 /* Issue marker command only when we are going to start the I/O */
1002 ha->marker_needed = 1;
1003
1004 if (status) {
1005 /* Empty */
1006 DEBUG2_3(printk("%s(%ld): **** FAILED ****\n",
1007 __func__,
1008 ha->host_no);)
1009 } else {
1010 /* Empty */
1011 DEBUG3(printk("%s(%ld): exiting normally.\n",
1012 __func__,
1013 ha->host_no);)
1014 }
1015
1016 return(status);
1017 }
1018
1019 /*
1020 * qla2x00_device_reset
1021 * Issue bus device reset message to the target.
1022 *
1023 * Input:
1024 * ha = adapter block pointer.
1025 * t = SCSI ID.
1026 * TARGET_QUEUE_LOCK must be released.
1027 * ADAPTER_STATE_LOCK must be released.
1028 *
1029 * Context:
1030 * Kernel context.
1031 */
1032 static int
1033 qla2x00_device_reset(scsi_qla_host_t *ha, fc_port_t *reset_fcport)
1034 {
1035 /* Abort Target command will clear Reservation */
1036 return ha->isp_ops.abort_target(reset_fcport);
1037 }
1038
1039 static int
1040 qla2xxx_slave_alloc(struct scsi_device *sdev)
1041 {
1042 struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1043
1044 if (!rport)
1045 return -ENXIO;
1046
1047 sdev->hostdata = rport->dd_data;
1048
1049 return 0;
1050 }
1051
1052 static int
1053 qla2xxx_slave_configure(struct scsi_device *sdev)
1054 {
1055 scsi_qla_host_t *ha = to_qla_host(sdev->host);
1056 struct fc_rport *rport = starget_to_rport(sdev->sdev_target);
1057
1058 if (sdev->tagged_supported)
1059 scsi_activate_tcq(sdev, 32);
1060 else
1061 scsi_deactivate_tcq(sdev, 32);
1062
1063 rport->dev_loss_tmo = ha->port_down_retry_count + 5;
1064
1065 return 0;
1066 }
1067
1068 static void
1069 qla2xxx_slave_destroy(struct scsi_device *sdev)
1070 {
1071 sdev->hostdata = NULL;
1072 }
1073
1074 static int
1075 qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth)
1076 {
1077 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1078 return sdev->queue_depth;
1079 }
1080
1081 static int
1082 qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1083 {
1084 if (sdev->tagged_supported) {
1085 scsi_set_tag_type(sdev, tag_type);
1086 if (tag_type)
1087 scsi_activate_tcq(sdev, sdev->queue_depth);
1088 else
1089 scsi_deactivate_tcq(sdev, sdev->queue_depth);
1090 } else
1091 tag_type = 0;
1092
1093 return tag_type;
1094 }
1095
1096 /**
1097 * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1098 * @ha: HA context
1099 *
1100 * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1101 * supported addressing method.
1102 */
1103 static void
1104 qla2x00_config_dma_addressing(scsi_qla_host_t *ha)
1105 {
1106 /* Assume a 32bit DMA mask. */
1107 ha->flags.enable_64bit_addressing = 0;
1108
1109 if (!dma_set_mask(&ha->pdev->dev, DMA_64BIT_MASK)) {
1110 /* Any upper-dword bits set? */
1111 if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1112 !pci_set_consistent_dma_mask(ha->pdev, DMA_64BIT_MASK)) {
1113 /* Ok, a 64bit DMA mask is applicable. */
1114 ha->flags.enable_64bit_addressing = 1;
1115 ha->isp_ops.calc_req_entries = qla2x00_calc_iocbs_64;
1116 ha->isp_ops.build_iocbs = qla2x00_build_scsi_iocbs_64;
1117 return;
1118 }
1119 }
1120
1121 dma_set_mask(&ha->pdev->dev, DMA_32BIT_MASK);
1122 pci_set_consistent_dma_mask(ha->pdev, DMA_32BIT_MASK);
1123 }
1124
1125 static int
1126 qla2x00_iospace_config(scsi_qla_host_t *ha)
1127 {
1128 unsigned long pio, pio_len, pio_flags;
1129 unsigned long mmio, mmio_len, mmio_flags;
1130
1131 /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1132 pio = pci_resource_start(ha->pdev, 0);
1133 pio_len = pci_resource_len(ha->pdev, 0);
1134 pio_flags = pci_resource_flags(ha->pdev, 0);
1135 if (pio_flags & IORESOURCE_IO) {
1136 if (pio_len < MIN_IOBASE_LEN) {
1137 qla_printk(KERN_WARNING, ha,
1138 "Invalid PCI I/O region size (%s)...\n",
1139 pci_name(ha->pdev));
1140 pio = 0;
1141 }
1142 } else {
1143 qla_printk(KERN_WARNING, ha,
1144 "region #0 not a PIO resource (%s)...\n",
1145 pci_name(ha->pdev));
1146 pio = 0;
1147 }
1148
1149 /* Use MMIO operations for all accesses. */
1150 mmio = pci_resource_start(ha->pdev, 1);
1151 mmio_len = pci_resource_len(ha->pdev, 1);
1152 mmio_flags = pci_resource_flags(ha->pdev, 1);
1153
1154 if (!(mmio_flags & IORESOURCE_MEM)) {
1155 qla_printk(KERN_ERR, ha,
1156 "region #0 not an MMIO resource (%s), aborting\n",
1157 pci_name(ha->pdev));
1158 goto iospace_error_exit;
1159 }
1160 if (mmio_len < MIN_IOBASE_LEN) {
1161 qla_printk(KERN_ERR, ha,
1162 "Invalid PCI mem region size (%s), aborting\n",
1163 pci_name(ha->pdev));
1164 goto iospace_error_exit;
1165 }
1166
1167 if (pci_request_regions(ha->pdev, ha->brd_info->drv_name)) {
1168 qla_printk(KERN_WARNING, ha,
1169 "Failed to reserve PIO/MMIO regions (%s)\n",
1170 pci_name(ha->pdev));
1171
1172 goto iospace_error_exit;
1173 }
1174
1175 ha->pio_address = pio;
1176 ha->pio_length = pio_len;
1177 ha->iobase = ioremap(mmio, MIN_IOBASE_LEN);
1178 if (!ha->iobase) {
1179 qla_printk(KERN_ERR, ha,
1180 "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
1181
1182 goto iospace_error_exit;
1183 }
1184
1185 return (0);
1186
1187 iospace_error_exit:
1188 return (-ENOMEM);
1189 }
1190
1191 static void
1192 qla2x00_enable_intrs(scsi_qla_host_t *ha)
1193 {
1194 unsigned long flags = 0;
1195 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1196
1197 spin_lock_irqsave(&ha->hardware_lock, flags);
1198 ha->interrupts_on = 1;
1199 /* enable risc and host interrupts */
1200 WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1201 RD_REG_WORD(&reg->ictrl);
1202 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1203
1204 }
1205
1206 static void
1207 qla2x00_disable_intrs(scsi_qla_host_t *ha)
1208 {
1209 unsigned long flags = 0;
1210 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1211
1212 spin_lock_irqsave(&ha->hardware_lock, flags);
1213 ha->interrupts_on = 0;
1214 /* disable risc and host interrupts */
1215 WRT_REG_WORD(&reg->ictrl, 0);
1216 RD_REG_WORD(&reg->ictrl);
1217 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1218 }
1219
1220 static void
1221 qla24xx_enable_intrs(scsi_qla_host_t *ha)
1222 {
1223 unsigned long flags = 0;
1224 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1225
1226 spin_lock_irqsave(&ha->hardware_lock, flags);
1227 ha->interrupts_on = 1;
1228 WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1229 RD_REG_DWORD(&reg->ictrl);
1230 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1231 }
1232
1233 static void
1234 qla24xx_disable_intrs(scsi_qla_host_t *ha)
1235 {
1236 unsigned long flags = 0;
1237 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1238
1239 spin_lock_irqsave(&ha->hardware_lock, flags);
1240 ha->interrupts_on = 0;
1241 WRT_REG_DWORD(&reg->ictrl, 0);
1242 RD_REG_DWORD(&reg->ictrl);
1243 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1244 }
1245
1246 /*
1247 * PCI driver interface
1248 */
1249 int qla2x00_probe_one(struct pci_dev *pdev, struct qla_board_info *brd_info)
1250 {
1251 int ret = -ENODEV;
1252 device_reg_t __iomem *reg;
1253 struct Scsi_Host *host;
1254 scsi_qla_host_t *ha;
1255 unsigned long flags = 0;
1256 unsigned long wait_switch = 0;
1257 char pci_info[20];
1258 char fw_str[30];
1259 fc_port_t *fcport;
1260
1261 if (pci_enable_device(pdev))
1262 goto probe_out;
1263
1264 host = scsi_host_alloc(brd_info->sht ? brd_info->sht:
1265 &qla2x00_driver_template, sizeof(scsi_qla_host_t));
1266 if (host == NULL) {
1267 printk(KERN_WARNING
1268 "qla2xxx: Couldn't allocate host from scsi layer!\n");
1269 goto probe_disable_device;
1270 }
1271
1272 /* Clear our data area */
1273 ha = (scsi_qla_host_t *)host->hostdata;
1274 memset(ha, 0, sizeof(scsi_qla_host_t));
1275
1276 ha->pdev = pdev;
1277 ha->host = host;
1278 ha->host_no = host->host_no;
1279 ha->brd_info = brd_info;
1280 sprintf(ha->host_str, "%s_%ld", ha->brd_info->drv_name, ha->host_no);
1281
1282 ha->dpc_pid = -1;
1283
1284 /* Configure PCI I/O space */
1285 ret = qla2x00_iospace_config(ha);
1286 if (ret)
1287 goto probe_failed;
1288
1289 qla_printk(KERN_INFO, ha,
1290 "Found an %s, irq %d, iobase 0x%p\n", ha->brd_info->isp_name,
1291 pdev->irq, ha->iobase);
1292
1293 spin_lock_init(&ha->hardware_lock);
1294
1295 ha->prev_topology = 0;
1296 ha->ports = MAX_BUSES;
1297 ha->init_cb_size = sizeof(init_cb_t);
1298 ha->mgmt_svr_loop_id = MANAGEMENT_SERVER;
1299
1300 /* Assign ISP specific operations. */
1301 ha->isp_ops.pci_config = qla2100_pci_config;
1302 ha->isp_ops.reset_chip = qla2x00_reset_chip;
1303 ha->isp_ops.chip_diag = qla2x00_chip_diag;
1304 ha->isp_ops.config_rings = qla2x00_config_rings;
1305 ha->isp_ops.reset_adapter = qla2x00_reset_adapter;
1306 ha->isp_ops.nvram_config = qla2x00_nvram_config;
1307 ha->isp_ops.update_fw_options = qla2x00_update_fw_options;
1308 ha->isp_ops.load_risc = qla2x00_load_risc;
1309 ha->isp_ops.pci_info_str = qla2x00_pci_info_str;
1310 ha->isp_ops.fw_version_str = qla2x00_fw_version_str;
1311 ha->isp_ops.intr_handler = qla2100_intr_handler;
1312 ha->isp_ops.enable_intrs = qla2x00_enable_intrs;
1313 ha->isp_ops.disable_intrs = qla2x00_disable_intrs;
1314 ha->isp_ops.abort_command = qla2x00_abort_command;
1315 ha->isp_ops.abort_target = qla2x00_abort_target;
1316 ha->isp_ops.fabric_login = qla2x00_login_fabric;
1317 ha->isp_ops.fabric_logout = qla2x00_fabric_logout;
1318 ha->isp_ops.calc_req_entries = qla2x00_calc_iocbs_32;
1319 ha->isp_ops.build_iocbs = qla2x00_build_scsi_iocbs_32;
1320 ha->isp_ops.prep_ms_iocb = qla2x00_prep_ms_iocb;
1321 ha->isp_ops.prep_ms_fdmi_iocb = qla2x00_prep_ms_fdmi_iocb;
1322 ha->isp_ops.read_nvram = qla2x00_read_nvram_data;
1323 ha->isp_ops.write_nvram = qla2x00_write_nvram_data;
1324 ha->isp_ops.fw_dump = qla2100_fw_dump;
1325 ha->isp_ops.ascii_fw_dump = qla2100_ascii_fw_dump;
1326 if (IS_QLA2100(ha)) {
1327 host->max_id = MAX_TARGETS_2100;
1328 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
1329 ha->request_q_length = REQUEST_ENTRY_CNT_2100;
1330 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1331 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1332 host->sg_tablesize = 32;
1333 ha->gid_list_info_size = 4;
1334 } else if (IS_QLA2200(ha)) {
1335 host->max_id = MAX_TARGETS_2200;
1336 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1337 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1338 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1339 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1340 ha->gid_list_info_size = 4;
1341 } else if (IS_QLA23XX(ha)) {
1342 host->max_id = MAX_TARGETS_2200;
1343 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1344 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1345 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1346 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1347 ha->isp_ops.pci_config = qla2300_pci_config;
1348 ha->isp_ops.intr_handler = qla2300_intr_handler;
1349 ha->isp_ops.fw_dump = qla2300_fw_dump;
1350 ha->isp_ops.ascii_fw_dump = qla2300_ascii_fw_dump;
1351 ha->gid_list_info_size = 6;
1352 } else if (IS_QLA24XX(ha) || IS_QLA25XX(ha)) {
1353 host->max_id = MAX_TARGETS_2200;
1354 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1355 ha->request_q_length = REQUEST_ENTRY_CNT_24XX;
1356 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1357 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1358 ha->init_cb_size = sizeof(struct init_cb_24xx);
1359 ha->mgmt_svr_loop_id = 10;
1360 ha->isp_ops.pci_config = qla24xx_pci_config;
1361 ha->isp_ops.reset_chip = qla24xx_reset_chip;
1362 ha->isp_ops.chip_diag = qla24xx_chip_diag;
1363 ha->isp_ops.config_rings = qla24xx_config_rings;
1364 ha->isp_ops.reset_adapter = qla24xx_reset_adapter;
1365 ha->isp_ops.nvram_config = qla24xx_nvram_config;
1366 ha->isp_ops.update_fw_options = qla24xx_update_fw_options;
1367 ha->isp_ops.load_risc = qla24xx_load_risc_flash;
1368 if (ql2xfwloadbin)
1369 ha->isp_ops.load_risc = qla24xx_load_risc_hotplug;
1370 ha->isp_ops.pci_info_str = qla24xx_pci_info_str;
1371 ha->isp_ops.fw_version_str = qla24xx_fw_version_str;
1372 ha->isp_ops.intr_handler = qla24xx_intr_handler;
1373 ha->isp_ops.enable_intrs = qla24xx_enable_intrs;
1374 ha->isp_ops.disable_intrs = qla24xx_disable_intrs;
1375 ha->isp_ops.abort_command = qla24xx_abort_command;
1376 ha->isp_ops.abort_target = qla24xx_abort_target;
1377 ha->isp_ops.fabric_login = qla24xx_login_fabric;
1378 ha->isp_ops.fabric_logout = qla24xx_fabric_logout;
1379 ha->isp_ops.prep_ms_iocb = qla24xx_prep_ms_iocb;
1380 ha->isp_ops.prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb;
1381 ha->isp_ops.read_nvram = qla24xx_read_nvram_data;
1382 ha->isp_ops.write_nvram = qla24xx_write_nvram_data;
1383 ha->isp_ops.fw_dump = qla24xx_fw_dump;
1384 ha->isp_ops.ascii_fw_dump = qla24xx_ascii_fw_dump;
1385 ha->gid_list_info_size = 8;
1386 }
1387 host->can_queue = ha->request_q_length + 128;
1388
1389 /* load the F/W, read paramaters, and init the H/W */
1390 ha->instance = num_hosts;
1391
1392 init_MUTEX(&ha->mbx_cmd_sem);
1393 init_MUTEX_LOCKED(&ha->mbx_intr_sem);
1394
1395 INIT_LIST_HEAD(&ha->list);
1396 INIT_LIST_HEAD(&ha->fcports);
1397 INIT_LIST_HEAD(&ha->rscn_fcports);
1398
1399 /*
1400 * These locks are used to prevent more than one CPU
1401 * from modifying the queue at the same time. The
1402 * higher level "host_lock" will reduce most
1403 * contention for these locks.
1404 */
1405 spin_lock_init(&ha->mbx_reg_lock);
1406
1407 init_completion(&ha->dpc_inited);
1408 init_completion(&ha->dpc_exited);
1409
1410 qla2x00_config_dma_addressing(ha);
1411 if (qla2x00_mem_alloc(ha)) {
1412 qla_printk(KERN_WARNING, ha,
1413 "[ERROR] Failed to allocate memory for adapter\n");
1414
1415 ret = -ENOMEM;
1416 goto probe_failed;
1417 }
1418
1419 if (qla2x00_initialize_adapter(ha) &&
1420 !(ha->device_flags & DFLG_NO_CABLE)) {
1421
1422 qla_printk(KERN_WARNING, ha,
1423 "Failed to initialize adapter\n");
1424
1425 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
1426 "Adapter flags %x.\n",
1427 ha->host_no, ha->device_flags));
1428
1429 ret = -ENODEV;
1430 goto probe_failed;
1431 }
1432
1433 /*
1434 * Startup the kernel thread for this host adapter
1435 */
1436 ha->dpc_should_die = 0;
1437 ha->dpc_pid = kernel_thread(qla2x00_do_dpc, ha, 0);
1438 if (ha->dpc_pid < 0) {
1439 qla_printk(KERN_WARNING, ha,
1440 "Unable to start DPC thread!\n");
1441
1442 ret = -ENODEV;
1443 goto probe_failed;
1444 }
1445 wait_for_completion(&ha->dpc_inited);
1446
1447 host->this_id = 255;
1448 host->cmd_per_lun = 3;
1449 host->unique_id = ha->instance;
1450 host->max_cmd_len = MAX_CMDSZ;
1451 host->max_channel = ha->ports - 1;
1452 host->max_lun = MAX_LUNS;
1453 host->transportt = qla2xxx_transport_template;
1454
1455 ret = request_irq(pdev->irq, ha->isp_ops.intr_handler,
1456 SA_INTERRUPT|SA_SHIRQ, ha->brd_info->drv_name, ha);
1457 if (ret) {
1458 qla_printk(KERN_WARNING, ha,
1459 "Failed to reserve interrupt %d already in use.\n",
1460 pdev->irq);
1461 goto probe_failed;
1462 }
1463 host->irq = pdev->irq;
1464
1465 /* Initialized the timer */
1466 qla2x00_start_timer(ha, qla2x00_timer, WATCH_INTERVAL);
1467
1468 DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
1469 ha->host_no, ha));
1470
1471 ha->isp_ops.disable_intrs(ha);
1472
1473 spin_lock_irqsave(&ha->hardware_lock, flags);
1474 reg = ha->iobase;
1475 if (IS_QLA24XX(ha) || IS_QLA25XX(ha)) {
1476 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_HOST_INT);
1477 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_RISC_INT);
1478 } else {
1479 WRT_REG_WORD(&reg->isp.semaphore, 0);
1480 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_RISC_INT);
1481 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_HOST_INT);
1482
1483 /* Enable proper parity */
1484 if (!IS_QLA2100(ha) && !IS_QLA2200(ha)) {
1485 if (IS_QLA2300(ha))
1486 /* SRAM parity */
1487 WRT_REG_WORD(&reg->isp.hccr,
1488 (HCCR_ENABLE_PARITY + 0x1));
1489 else
1490 /* SRAM, Instruction RAM and GP RAM parity */
1491 WRT_REG_WORD(&reg->isp.hccr,
1492 (HCCR_ENABLE_PARITY + 0x7));
1493 }
1494 }
1495 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1496
1497 ha->isp_ops.enable_intrs(ha);
1498
1499 /* v2.19.5b6 */
1500 /*
1501 * Wait around max loop_reset_delay secs for the devices to come
1502 * on-line. We don't want Linux scanning before we are ready.
1503 *
1504 */
1505 for (wait_switch = jiffies + (ha->loop_reset_delay * HZ);
1506 time_before(jiffies,wait_switch) &&
1507 !(ha->device_flags & (DFLG_NO_CABLE | DFLG_FABRIC_DEVICES))
1508 && (ha->device_flags & SWITCH_FOUND) ;) {
1509
1510 qla2x00_check_fabric_devices(ha);
1511
1512 msleep(10);
1513 }
1514
1515 pci_set_drvdata(pdev, ha);
1516 ha->flags.init_done = 1;
1517 num_hosts++;
1518
1519 ret = scsi_add_host(host, &pdev->dev);
1520 if (ret)
1521 goto probe_failed;
1522
1523 qla2x00_alloc_sysfs_attr(ha);
1524
1525 qla2x00_init_host_attr(ha);
1526
1527 qla_printk(KERN_INFO, ha, "\n"
1528 " QLogic Fibre Channel HBA Driver: %s\n"
1529 " QLogic %s - %s\n"
1530 " %s: %s @ %s hdma%c, host#=%ld, fw=%s\n", qla2x00_version_str,
1531 ha->model_number, ha->model_desc ? ha->model_desc: "",
1532 ha->brd_info->isp_name, ha->isp_ops.pci_info_str(ha, pci_info),
1533 pci_name(pdev), ha->flags.enable_64bit_addressing ? '+': '-',
1534 ha->host_no, ha->isp_ops.fw_version_str(ha, fw_str));
1535
1536 /* Go with fc_rport registration. */
1537 list_for_each_entry(fcport, &ha->fcports, list)
1538 qla2x00_reg_remote_port(ha, fcport);
1539
1540 return 0;
1541
1542 probe_failed:
1543 qla2x00_free_device(ha);
1544
1545 scsi_host_put(host);
1546
1547 probe_disable_device:
1548 pci_disable_device(pdev);
1549
1550 probe_out:
1551 return ret;
1552 }
1553 EXPORT_SYMBOL_GPL(qla2x00_probe_one);
1554
1555 void qla2x00_remove_one(struct pci_dev *pdev)
1556 {
1557 scsi_qla_host_t *ha;
1558
1559 ha = pci_get_drvdata(pdev);
1560
1561 qla2x00_free_sysfs_attr(ha);
1562
1563 fc_remove_host(ha->host);
1564
1565 scsi_remove_host(ha->host);
1566
1567 qla2x00_free_device(ha);
1568
1569 scsi_host_put(ha->host);
1570
1571 pci_set_drvdata(pdev, NULL);
1572 }
1573 EXPORT_SYMBOL_GPL(qla2x00_remove_one);
1574
1575 static void
1576 qla2x00_free_device(scsi_qla_host_t *ha)
1577 {
1578 int ret;
1579
1580 /* Abort any outstanding IO descriptors. */
1581 if (!IS_QLA2100(ha) && !IS_QLA2200(ha))
1582 qla2x00_cancel_io_descriptors(ha);
1583
1584 /* Disable timer */
1585 if (ha->timer_active)
1586 qla2x00_stop_timer(ha);
1587
1588 /* Kill the kernel thread for this host */
1589 if (ha->dpc_pid >= 0) {
1590 ha->dpc_should_die = 1;
1591 wmb();
1592 ret = kill_proc(ha->dpc_pid, SIGHUP, 1);
1593 if (ret) {
1594 qla_printk(KERN_ERR, ha,
1595 "Unable to signal DPC thread -- (%d)\n", ret);
1596
1597 /* TODO: SOMETHING MORE??? */
1598 } else {
1599 wait_for_completion(&ha->dpc_exited);
1600 }
1601 }
1602
1603 /* Stop currently executing firmware. */
1604 qla2x00_stop_firmware(ha);
1605
1606 /* turn-off interrupts on the card */
1607 if (ha->interrupts_on)
1608 ha->isp_ops.disable_intrs(ha);
1609
1610 qla2x00_mem_free(ha);
1611
1612 ha->flags.online = 0;
1613
1614 /* Detach interrupts */
1615 if (ha->pdev->irq)
1616 free_irq(ha->pdev->irq, ha);
1617
1618 /* release io space registers */
1619 if (ha->iobase)
1620 iounmap(ha->iobase);
1621 pci_release_regions(ha->pdev);
1622
1623 pci_disable_device(ha->pdev);
1624 }
1625
1626 /*
1627 * qla2x00_mark_device_lost Updates fcport state when device goes offline.
1628 *
1629 * Input: ha = adapter block pointer. fcport = port structure pointer.
1630 *
1631 * Return: None.
1632 *
1633 * Context:
1634 */
1635 void qla2x00_mark_device_lost(scsi_qla_host_t *ha, fc_port_t *fcport,
1636 int do_login)
1637 {
1638 if (atomic_read(&fcport->state) == FCS_ONLINE && fcport->rport)
1639 fc_remote_port_block(fcport->rport);
1640 /*
1641 * We may need to retry the login, so don't change the state of the
1642 * port but do the retries.
1643 */
1644 if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
1645 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1646
1647 if (!do_login)
1648 return;
1649
1650 if (fcport->login_retry == 0) {
1651 fcport->login_retry = ha->login_retry_count;
1652 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
1653
1654 DEBUG(printk("scsi(%ld): Port login retry: "
1655 "%02x%02x%02x%02x%02x%02x%02x%02x, "
1656 "id = 0x%04x retry cnt=%d\n",
1657 ha->host_no,
1658 fcport->port_name[0],
1659 fcport->port_name[1],
1660 fcport->port_name[2],
1661 fcport->port_name[3],
1662 fcport->port_name[4],
1663 fcport->port_name[5],
1664 fcport->port_name[6],
1665 fcport->port_name[7],
1666 fcport->loop_id,
1667 fcport->login_retry));
1668 }
1669 }
1670
1671 /*
1672 * qla2x00_mark_all_devices_lost
1673 * Updates fcport state when device goes offline.
1674 *
1675 * Input:
1676 * ha = adapter block pointer.
1677 * fcport = port structure pointer.
1678 *
1679 * Return:
1680 * None.
1681 *
1682 * Context:
1683 */
1684 void
1685 qla2x00_mark_all_devices_lost(scsi_qla_host_t *ha)
1686 {
1687 fc_port_t *fcport;
1688
1689 list_for_each_entry(fcport, &ha->fcports, list) {
1690 if (fcport->port_type != FCT_TARGET)
1691 continue;
1692
1693 /*
1694 * No point in marking the device as lost, if the device is
1695 * already DEAD.
1696 */
1697 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
1698 continue;
1699 if (atomic_read(&fcport->state) == FCS_ONLINE && fcport->rport)
1700 fc_remote_port_block(fcport->rport);
1701 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1702 }
1703 }
1704
1705 /*
1706 * qla2x00_mem_alloc
1707 * Allocates adapter memory.
1708 *
1709 * Returns:
1710 * 0 = success.
1711 * 1 = failure.
1712 */
1713 static uint8_t
1714 qla2x00_mem_alloc(scsi_qla_host_t *ha)
1715 {
1716 char name[16];
1717 uint8_t status = 1;
1718 int retry= 10;
1719
1720 do {
1721 /*
1722 * This will loop only once if everything goes well, else some
1723 * number of retries will be performed to get around a kernel
1724 * bug where available mem is not allocated until after a
1725 * little delay and a retry.
1726 */
1727 ha->request_ring = dma_alloc_coherent(&ha->pdev->dev,
1728 (ha->request_q_length + 1) * sizeof(request_t),
1729 &ha->request_dma, GFP_KERNEL);
1730 if (ha->request_ring == NULL) {
1731 qla_printk(KERN_WARNING, ha,
1732 "Memory Allocation failed - request_ring\n");
1733
1734 qla2x00_mem_free(ha);
1735 msleep(100);
1736
1737 continue;
1738 }
1739
1740 ha->response_ring = dma_alloc_coherent(&ha->pdev->dev,
1741 (ha->response_q_length + 1) * sizeof(response_t),
1742 &ha->response_dma, GFP_KERNEL);
1743 if (ha->response_ring == NULL) {
1744 qla_printk(KERN_WARNING, ha,
1745 "Memory Allocation failed - response_ring\n");
1746
1747 qla2x00_mem_free(ha);
1748 msleep(100);
1749
1750 continue;
1751 }
1752
1753 ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
1754 &ha->gid_list_dma, GFP_KERNEL);
1755 if (ha->gid_list == NULL) {
1756 qla_printk(KERN_WARNING, ha,
1757 "Memory Allocation failed - gid_list\n");
1758
1759 qla2x00_mem_free(ha);
1760 msleep(100);
1761
1762 continue;
1763 }
1764
1765 ha->rlc_rsp = dma_alloc_coherent(&ha->pdev->dev,
1766 sizeof(rpt_lun_cmd_rsp_t), &ha->rlc_rsp_dma, GFP_KERNEL);
1767 if (ha->rlc_rsp == NULL) {
1768 qla_printk(KERN_WARNING, ha,
1769 "Memory Allocation failed - rlc");
1770
1771 qla2x00_mem_free(ha);
1772 msleep(100);
1773
1774 continue;
1775 }
1776
1777 snprintf(name, sizeof(name), "qla2xxx_%ld", ha->host_no);
1778 ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
1779 DMA_POOL_SIZE, 8, 0);
1780 if (ha->s_dma_pool == NULL) {
1781 qla_printk(KERN_WARNING, ha,
1782 "Memory Allocation failed - s_dma_pool\n");
1783
1784 qla2x00_mem_free(ha);
1785 msleep(100);
1786
1787 continue;
1788 }
1789
1790 /* get consistent memory allocated for init control block */
1791 ha->init_cb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
1792 &ha->init_cb_dma);
1793 if (ha->init_cb == NULL) {
1794 qla_printk(KERN_WARNING, ha,
1795 "Memory Allocation failed - init_cb\n");
1796
1797 qla2x00_mem_free(ha);
1798 msleep(100);
1799
1800 continue;
1801 }
1802 memset(ha->init_cb, 0, ha->init_cb_size);
1803
1804 /* Get consistent memory allocated for Get Port Database cmd */
1805 ha->iodesc_pd = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
1806 &ha->iodesc_pd_dma);
1807 if (ha->iodesc_pd == NULL) {
1808 /* error */
1809 qla_printk(KERN_WARNING, ha,
1810 "Memory Allocation failed - iodesc_pd\n");
1811
1812 qla2x00_mem_free(ha);
1813 msleep(100);
1814
1815 continue;
1816 }
1817 memset(ha->iodesc_pd, 0, PORT_DATABASE_SIZE);
1818
1819 /* Allocate ioctl related memory. */
1820 if (qla2x00_alloc_ioctl_mem(ha)) {
1821 qla_printk(KERN_WARNING, ha,
1822 "Memory Allocation failed - ioctl_mem\n");
1823
1824 qla2x00_mem_free(ha);
1825 msleep(100);
1826
1827 continue;
1828 }
1829
1830 if (qla2x00_allocate_sp_pool(ha)) {
1831 qla_printk(KERN_WARNING, ha,
1832 "Memory Allocation failed - "
1833 "qla2x00_allocate_sp_pool()\n");
1834
1835 qla2x00_mem_free(ha);
1836 msleep(100);
1837
1838 continue;
1839 }
1840
1841 /* Allocate memory for SNS commands */
1842 if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
1843 /* Get consistent memory allocated for SNS commands */
1844 ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
1845 sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma,
1846 GFP_KERNEL);
1847 if (ha->sns_cmd == NULL) {
1848 /* error */
1849 qla_printk(KERN_WARNING, ha,
1850 "Memory Allocation failed - sns_cmd\n");
1851
1852 qla2x00_mem_free(ha);
1853 msleep(100);
1854
1855 continue;
1856 }
1857 memset(ha->sns_cmd, 0, sizeof(struct sns_cmd_pkt));
1858 } else {
1859 /* Get consistent memory allocated for MS IOCB */
1860 ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
1861 &ha->ms_iocb_dma);
1862 if (ha->ms_iocb == NULL) {
1863 /* error */
1864 qla_printk(KERN_WARNING, ha,
1865 "Memory Allocation failed - ms_iocb\n");
1866
1867 qla2x00_mem_free(ha);
1868 msleep(100);
1869
1870 continue;
1871 }
1872 memset(ha->ms_iocb, 0, sizeof(ms_iocb_entry_t));
1873
1874 /*
1875 * Get consistent memory allocated for CT SNS
1876 * commands
1877 */
1878 ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
1879 sizeof(struct ct_sns_pkt), &ha->ct_sns_dma,
1880 GFP_KERNEL);
1881 if (ha->ct_sns == NULL) {
1882 /* error */
1883 qla_printk(KERN_WARNING, ha,
1884 "Memory Allocation failed - ct_sns\n");
1885
1886 qla2x00_mem_free(ha);
1887 msleep(100);
1888
1889 continue;
1890 }
1891 memset(ha->ct_sns, 0, sizeof(struct ct_sns_pkt));
1892 }
1893
1894 /* Done all allocations without any error. */
1895 status = 0;
1896
1897 } while (retry-- && status != 0);
1898
1899 if (status) {
1900 printk(KERN_WARNING
1901 "%s(): **** FAILED ****\n", __func__);
1902 }
1903
1904 return(status);
1905 }
1906
1907 /*
1908 * qla2x00_mem_free
1909 * Frees all adapter allocated memory.
1910 *
1911 * Input:
1912 * ha = adapter block pointer.
1913 */
1914 static void
1915 qla2x00_mem_free(scsi_qla_host_t *ha)
1916 {
1917 struct list_head *fcpl, *fcptemp;
1918 fc_port_t *fcport;
1919 unsigned int wtime;/* max wait time if mbx cmd is busy. */
1920
1921 if (ha == NULL) {
1922 /* error */
1923 DEBUG2(printk("%s(): ERROR invalid ha pointer.\n", __func__));
1924 return;
1925 }
1926
1927 /* Make sure all other threads are stopped. */
1928 wtime = 60 * 1000;
1929 while (ha->dpc_wait && wtime)
1930 wtime = msleep_interruptible(wtime);
1931
1932 /* free ioctl memory */
1933 qla2x00_free_ioctl_mem(ha);
1934
1935 /* free sp pool */
1936 qla2x00_free_sp_pool(ha);
1937
1938 if (ha->sns_cmd)
1939 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
1940 ha->sns_cmd, ha->sns_cmd_dma);
1941
1942 if (ha->ct_sns)
1943 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
1944 ha->ct_sns, ha->ct_sns_dma);
1945
1946 if (ha->ms_iocb)
1947 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
1948
1949 if (ha->iodesc_pd)
1950 dma_pool_free(ha->s_dma_pool, ha->iodesc_pd, ha->iodesc_pd_dma);
1951
1952 if (ha->init_cb)
1953 dma_pool_free(ha->s_dma_pool, ha->init_cb, ha->init_cb_dma);
1954
1955 if (ha->s_dma_pool)
1956 dma_pool_destroy(ha->s_dma_pool);
1957
1958 if (ha->rlc_rsp)
1959 dma_free_coherent(&ha->pdev->dev,
1960 sizeof(rpt_lun_cmd_rsp_t), ha->rlc_rsp,
1961 ha->rlc_rsp_dma);
1962
1963 if (ha->gid_list)
1964 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
1965 ha->gid_list_dma);
1966
1967 if (ha->response_ring)
1968 dma_free_coherent(&ha->pdev->dev,
1969 (ha->response_q_length + 1) * sizeof(response_t),
1970 ha->response_ring, ha->response_dma);
1971
1972 if (ha->request_ring)
1973 dma_free_coherent(&ha->pdev->dev,
1974 (ha->request_q_length + 1) * sizeof(request_t),
1975 ha->request_ring, ha->request_dma);
1976
1977 ha->sns_cmd = NULL;
1978 ha->sns_cmd_dma = 0;
1979 ha->ct_sns = NULL;
1980 ha->ct_sns_dma = 0;
1981 ha->ms_iocb = NULL;
1982 ha->ms_iocb_dma = 0;
1983 ha->iodesc_pd = NULL;
1984 ha->iodesc_pd_dma = 0;
1985 ha->init_cb = NULL;
1986 ha->init_cb_dma = 0;
1987
1988 ha->s_dma_pool = NULL;
1989
1990 ha->rlc_rsp = NULL;
1991 ha->rlc_rsp_dma = 0;
1992 ha->gid_list = NULL;
1993 ha->gid_list_dma = 0;
1994
1995 ha->response_ring = NULL;
1996 ha->response_dma = 0;
1997 ha->request_ring = NULL;
1998 ha->request_dma = 0;
1999
2000 list_for_each_safe(fcpl, fcptemp, &ha->fcports) {
2001 fcport = list_entry(fcpl, fc_port_t, list);
2002
2003 /* fc ports */
2004 list_del_init(&fcport->list);
2005 kfree(fcport);
2006 }
2007 INIT_LIST_HEAD(&ha->fcports);
2008
2009 if (ha->fw_dump)
2010 free_pages((unsigned long)ha->fw_dump, ha->fw_dump_order);
2011
2012 vfree(ha->fw_dump24);
2013
2014 vfree(ha->fw_dump_buffer);
2015
2016 ha->fw_dump = NULL;
2017 ha->fw_dump24 = NULL;
2018 ha->fw_dumped = 0;
2019 ha->fw_dump_reading = 0;
2020 ha->fw_dump_buffer = NULL;
2021 }
2022
2023 /*
2024 * qla2x00_allocate_sp_pool
2025 * This routine is called during initialization to allocate
2026 * memory for local srb_t.
2027 *
2028 * Input:
2029 * ha = adapter block pointer.
2030 *
2031 * Context:
2032 * Kernel context.
2033 *
2034 * Note: Sets the ref_count for non Null sp to one.
2035 */
2036 static int
2037 qla2x00_allocate_sp_pool(scsi_qla_host_t *ha)
2038 {
2039 int rval;
2040
2041 rval = QLA_SUCCESS;
2042 ha->srb_mempool = mempool_create(SRB_MIN_REQ, mempool_alloc_slab,
2043 mempool_free_slab, srb_cachep);
2044 if (ha->srb_mempool == NULL) {
2045 qla_printk(KERN_INFO, ha, "Unable to allocate SRB mempool.\n");
2046 rval = QLA_FUNCTION_FAILED;
2047 }
2048 return (rval);
2049 }
2050
2051 /*
2052 * This routine frees all adapter allocated memory.
2053 *
2054 */
2055 static void
2056 qla2x00_free_sp_pool( scsi_qla_host_t *ha)
2057 {
2058 if (ha->srb_mempool) {
2059 mempool_destroy(ha->srb_mempool);
2060 ha->srb_mempool = NULL;
2061 }
2062 }
2063
2064 /**************************************************************************
2065 * qla2x00_do_dpc
2066 * This kernel thread is a task that is schedule by the interrupt handler
2067 * to perform the background processing for interrupts.
2068 *
2069 * Notes:
2070 * This task always run in the context of a kernel thread. It
2071 * is kick-off by the driver's detect code and starts up
2072 * up one per adapter. It immediately goes to sleep and waits for
2073 * some fibre event. When either the interrupt handler or
2074 * the timer routine detects a event it will one of the task
2075 * bits then wake us up.
2076 **************************************************************************/
2077 static int
2078 qla2x00_do_dpc(void *data)
2079 {
2080 DECLARE_MUTEX_LOCKED(sem);
2081 scsi_qla_host_t *ha;
2082 fc_port_t *fcport;
2083 uint8_t status;
2084 uint16_t next_loopid;
2085
2086 ha = (scsi_qla_host_t *)data;
2087
2088 lock_kernel();
2089
2090 daemonize("%s_dpc", ha->host_str);
2091 allow_signal(SIGHUP);
2092
2093 ha->dpc_wait = &sem;
2094
2095 set_user_nice(current, -20);
2096
2097 unlock_kernel();
2098
2099 complete(&ha->dpc_inited);
2100
2101 while (1) {
2102 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
2103
2104 if (down_interruptible(&sem))
2105 break;
2106
2107 if (ha->dpc_should_die)
2108 break;
2109
2110 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
2111
2112 /* Initialization not yet finished. Don't do anything yet. */
2113 if (!ha->flags.init_done || ha->dpc_active)
2114 continue;
2115
2116 DEBUG3(printk("scsi(%ld): DPC handler\n", ha->host_no));
2117
2118 ha->dpc_active = 1;
2119
2120 if (ha->flags.mbox_busy) {
2121 ha->dpc_active = 0;
2122 continue;
2123 }
2124
2125 if (test_and_clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) {
2126
2127 DEBUG(printk("scsi(%ld): dpc: sched "
2128 "qla2x00_abort_isp ha = %p\n",
2129 ha->host_no, ha));
2130 if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
2131 &ha->dpc_flags))) {
2132
2133 if (qla2x00_abort_isp(ha)) {
2134 /* failed. retry later */
2135 set_bit(ISP_ABORT_NEEDED,
2136 &ha->dpc_flags);
2137 }
2138 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2139 }
2140 DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
2141 ha->host_no));
2142 }
2143
2144 if (test_and_clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) &&
2145 (!(test_and_set_bit(RESET_ACTIVE, &ha->dpc_flags)))) {
2146
2147 DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
2148 ha->host_no));
2149
2150 qla2x00_rst_aen(ha);
2151 clear_bit(RESET_ACTIVE, &ha->dpc_flags);
2152 }
2153
2154 /* Retry each device up to login retry count */
2155 if ((test_and_clear_bit(RELOGIN_NEEDED, &ha->dpc_flags)) &&
2156 !test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) &&
2157 atomic_read(&ha->loop_state) != LOOP_DOWN) {
2158
2159 DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
2160 ha->host_no));
2161
2162 next_loopid = 0;
2163 list_for_each_entry(fcport, &ha->fcports, list) {
2164 if (fcport->port_type != FCT_TARGET)
2165 continue;
2166
2167 /*
2168 * If the port is not ONLINE then try to login
2169 * to it if we haven't run out of retries.
2170 */
2171 if (atomic_read(&fcport->state) != FCS_ONLINE &&
2172 fcport->login_retry) {
2173
2174 fcport->login_retry--;
2175 if (fcport->flags & FCF_FABRIC_DEVICE) {
2176 if (fcport->flags &
2177 FCF_TAPE_PRESENT)
2178 ha->isp_ops.fabric_logout(
2179 ha, fcport->loop_id,
2180 fcport->d_id.b.domain,
2181 fcport->d_id.b.area,
2182 fcport->d_id.b.al_pa);
2183 status = qla2x00_fabric_login(
2184 ha, fcport, &next_loopid);
2185 } else
2186 status =
2187 qla2x00_local_device_login(
2188 ha, fcport->loop_id);
2189
2190 if (status == QLA_SUCCESS) {
2191 fcport->old_loop_id = fcport->loop_id;
2192
2193 DEBUG(printk("scsi(%ld): port login OK: logged in ID 0x%x\n",
2194 ha->host_no, fcport->loop_id));
2195
2196 fcport->port_login_retry_count =
2197 ha->port_down_retry_count * PORT_RETRY_TIME;
2198 atomic_set(&fcport->state, FCS_ONLINE);
2199 atomic_set(&fcport->port_down_timer,
2200 ha->port_down_retry_count * PORT_RETRY_TIME);
2201
2202 fcport->login_retry = 0;
2203 } else if (status == 1) {
2204 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
2205 /* retry the login again */
2206 DEBUG(printk("scsi(%ld): Retrying %d login again loop_id 0x%x\n",
2207 ha->host_no,
2208 fcport->login_retry, fcport->loop_id));
2209 } else {
2210 fcport->login_retry = 0;
2211 }
2212 }
2213 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2214 break;
2215 }
2216 DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
2217 ha->host_no));
2218 }
2219
2220 if ((test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags)) &&
2221 atomic_read(&ha->loop_state) != LOOP_DOWN) {
2222
2223 clear_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags);
2224 DEBUG(printk("scsi(%ld): qla2x00_login_retry()\n",
2225 ha->host_no));
2226
2227 set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
2228
2229 DEBUG(printk("scsi(%ld): qla2x00_login_retry - end\n",
2230 ha->host_no));
2231 }
2232
2233 if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
2234
2235 DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
2236 ha->host_no));
2237
2238 if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
2239 &ha->dpc_flags))) {
2240
2241 qla2x00_loop_resync(ha);
2242
2243 clear_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags);
2244 }
2245
2246 DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
2247 ha->host_no));
2248 }
2249
2250 if (test_and_clear_bit(FCPORT_RESCAN_NEEDED, &ha->dpc_flags)) {
2251
2252 DEBUG(printk("scsi(%ld): Rescan flagged fcports...\n",
2253 ha->host_no));
2254
2255 qla2x00_rescan_fcports(ha);
2256
2257 DEBUG(printk("scsi(%ld): Rescan flagged fcports..."
2258 "end.\n",
2259 ha->host_no));
2260 }
2261
2262 if (!ha->interrupts_on)
2263 ha->isp_ops.enable_intrs(ha);
2264
2265 ha->dpc_active = 0;
2266 } /* End of while(1) */
2267
2268 DEBUG(printk("scsi(%ld): DPC handler exiting\n", ha->host_no));
2269
2270 /*
2271 * Make sure that nobody tries to wake us up again.
2272 */
2273 ha->dpc_wait = NULL;
2274 ha->dpc_active = 0;
2275
2276 complete_and_exit(&ha->dpc_exited, 0);
2277 }
2278
2279 /*
2280 * qla2x00_rst_aen
2281 * Processes asynchronous reset.
2282 *
2283 * Input:
2284 * ha = adapter block pointer.
2285 */
2286 static void
2287 qla2x00_rst_aen(scsi_qla_host_t *ha)
2288 {
2289 if (ha->flags.online && !ha->flags.reset_active &&
2290 !atomic_read(&ha->loop_down_timer) &&
2291 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) {
2292 do {
2293 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
2294
2295 /*
2296 * Issue marker command only when we are going to start
2297 * the I/O.
2298 */
2299 ha->marker_needed = 1;
2300 } while (!atomic_read(&ha->loop_down_timer) &&
2301 (test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags)));
2302 }
2303 }
2304
2305 static void
2306 qla2x00_sp_free_dma(scsi_qla_host_t *ha, srb_t *sp)
2307 {
2308 struct scsi_cmnd *cmd = sp->cmd;
2309
2310 if (sp->flags & SRB_DMA_VALID) {
2311 if (cmd->use_sg) {
2312 dma_unmap_sg(&ha->pdev->dev, cmd->request_buffer,
2313 cmd->use_sg, cmd->sc_data_direction);
2314 } else if (cmd->request_bufflen) {
2315 dma_unmap_single(&ha->pdev->dev, sp->dma_handle,
2316 cmd->request_bufflen, cmd->sc_data_direction);
2317 }
2318 sp->flags &= ~SRB_DMA_VALID;
2319 }
2320 CMD_SP(cmd) = NULL;
2321 }
2322
2323 void
2324 qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *sp)
2325 {
2326 struct scsi_cmnd *cmd = sp->cmd;
2327
2328 qla2x00_sp_free_dma(ha, sp);
2329
2330 mempool_free(sp, ha->srb_mempool);
2331
2332 cmd->scsi_done(cmd);
2333 }
2334
2335 /**************************************************************************
2336 * qla2x00_timer
2337 *
2338 * Description:
2339 * One second timer
2340 *
2341 * Context: Interrupt
2342 ***************************************************************************/
2343 static void
2344 qla2x00_timer(scsi_qla_host_t *ha)
2345 {
2346 unsigned long cpu_flags = 0;
2347 fc_port_t *fcport;
2348 int start_dpc = 0;
2349 int index;
2350 srb_t *sp;
2351 int t;
2352
2353 /*
2354 * Ports - Port down timer.
2355 *
2356 * Whenever, a port is in the LOST state we start decrementing its port
2357 * down timer every second until it reaches zero. Once it reaches zero
2358 * the port it marked DEAD.
2359 */
2360 t = 0;
2361 list_for_each_entry(fcport, &ha->fcports, list) {
2362 if (fcport->port_type != FCT_TARGET)
2363 continue;
2364
2365 if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
2366
2367 if (atomic_read(&fcport->port_down_timer) == 0)
2368 continue;
2369
2370 if (atomic_dec_and_test(&fcport->port_down_timer) != 0)
2371 atomic_set(&fcport->state, FCS_DEVICE_DEAD);
2372
2373 DEBUG(printk("scsi(%ld): fcport-%d - port retry count: "
2374 "%d remaining\n",
2375 ha->host_no,
2376 t, atomic_read(&fcport->port_down_timer)));
2377 }
2378 t++;
2379 } /* End of for fcport */
2380
2381
2382 /* Loop down handler. */
2383 if (atomic_read(&ha->loop_down_timer) > 0 &&
2384 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags)) && ha->flags.online) {
2385
2386 if (atomic_read(&ha->loop_down_timer) ==
2387 ha->loop_down_abort_time) {
2388
2389 DEBUG(printk("scsi(%ld): Loop Down - aborting the "
2390 "queues before time expire\n",
2391 ha->host_no));
2392
2393 if (!IS_QLA2100(ha) && ha->link_down_timeout)
2394 atomic_set(&ha->loop_state, LOOP_DEAD);
2395
2396 /* Schedule an ISP abort to return any tape commands. */
2397 spin_lock_irqsave(&ha->hardware_lock, cpu_flags);
2398 for (index = 1; index < MAX_OUTSTANDING_COMMANDS;
2399 index++) {
2400 fc_port_t *sfcp;
2401
2402 sp = ha->outstanding_cmds[index];
2403 if (!sp)
2404 continue;
2405 sfcp = sp->fcport;
2406 if (!(sfcp->flags & FCF_TAPE_PRESENT))
2407 continue;
2408
2409 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2410 break;
2411 }
2412 spin_unlock_irqrestore(&ha->hardware_lock, cpu_flags);
2413
2414 set_bit(ABORT_QUEUES_NEEDED, &ha->dpc_flags);
2415 start_dpc++;
2416 }
2417
2418 /* if the loop has been down for 4 minutes, reinit adapter */
2419 if (atomic_dec_and_test(&ha->loop_down_timer) != 0) {
2420 DEBUG(printk("scsi(%ld): Loop down exceed 4 mins - "
2421 "restarting queues.\n",
2422 ha->host_no));
2423
2424 set_bit(RESTART_QUEUES_NEEDED, &ha->dpc_flags);
2425 start_dpc++;
2426
2427 if (!(ha->device_flags & DFLG_NO_CABLE)) {
2428 DEBUG(printk("scsi(%ld): Loop down - "
2429 "aborting ISP.\n",
2430 ha->host_no));
2431 qla_printk(KERN_WARNING, ha,
2432 "Loop down - aborting ISP.\n");
2433
2434 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2435 }
2436 }
2437 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
2438 ha->host_no,
2439 atomic_read(&ha->loop_down_timer)));
2440 }
2441
2442 /* Schedule the DPC routine if needed */
2443 if ((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags) ||
2444 test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) ||
2445 start_dpc ||
2446 test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags) ||
2447 test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) ||
2448 test_bit(RELOGIN_NEEDED, &ha->dpc_flags)) &&
2449 ha->dpc_wait && !ha->dpc_active) {
2450
2451 up(ha->dpc_wait);
2452 }
2453
2454 qla2x00_restart_timer(ha, WATCH_INTERVAL);
2455 }
2456
2457 /* XXX(hch): crude hack to emulate a down_timeout() */
2458 int
2459 qla2x00_down_timeout(struct semaphore *sema, unsigned long timeout)
2460 {
2461 const unsigned int step = 100; /* msecs */
2462 unsigned int iterations = jiffies_to_msecs(timeout)/100;
2463
2464 do {
2465 if (!down_trylock(sema))
2466 return 0;
2467 if (msleep_interruptible(step))
2468 break;
2469 } while (--iterations >= 0);
2470
2471 return -ETIMEDOUT;
2472 }
2473
2474 static struct qla_board_info qla_board_tbl[] = {
2475 {
2476 .drv_name = "qla2400",
2477 .isp_name = "ISP2422",
2478 .fw_fname = "ql2400_fw.bin",
2479 .sht = &qla24xx_driver_template,
2480 },
2481 {
2482 .drv_name = "qla2400",
2483 .isp_name = "ISP2432",
2484 .fw_fname = "ql2400_fw.bin",
2485 .sht = &qla24xx_driver_template,
2486 },
2487 };
2488
2489 static struct pci_device_id qla2xxx_pci_tbl[] = {
2490 {
2491 .vendor = PCI_VENDOR_ID_QLOGIC,
2492 .device = PCI_DEVICE_ID_QLOGIC_ISP2422,
2493 .subvendor = PCI_ANY_ID,
2494 .subdevice = PCI_ANY_ID,
2495 .driver_data = (unsigned long)&qla_board_tbl[0],
2496 },
2497 {
2498 .vendor = PCI_VENDOR_ID_QLOGIC,
2499 .device = PCI_DEVICE_ID_QLOGIC_ISP2432,
2500 .subvendor = PCI_ANY_ID,
2501 .subdevice = PCI_ANY_ID,
2502 .driver_data = (unsigned long)&qla_board_tbl[1],
2503 },
2504 {0, 0},
2505 };
2506 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
2507
2508 static int __devinit
2509 qla2xxx_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
2510 {
2511 return qla2x00_probe_one(pdev,
2512 (struct qla_board_info *)id->driver_data);
2513 }
2514
2515 static void __devexit
2516 qla2xxx_remove_one(struct pci_dev *pdev)
2517 {
2518 qla2x00_remove_one(pdev);
2519 }
2520
2521 static struct pci_driver qla2xxx_pci_driver = {
2522 .name = "qla2xxx",
2523 .id_table = qla2xxx_pci_tbl,
2524 .probe = qla2xxx_probe_one,
2525 .remove = __devexit_p(qla2xxx_remove_one),
2526 };
2527
2528 /**
2529 * qla2x00_module_init - Module initialization.
2530 **/
2531 static int __init
2532 qla2x00_module_init(void)
2533 {
2534 int ret = 0;
2535
2536 /* Allocate cache for SRBs. */
2537 srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
2538 SLAB_HWCACHE_ALIGN, NULL, NULL);
2539 if (srb_cachep == NULL) {
2540 printk(KERN_ERR
2541 "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
2542 return -ENOMEM;
2543 }
2544
2545 /* Derive version string. */
2546 strcpy(qla2x00_version_str, QLA2XXX_VERSION);
2547 #if DEBUG_QLA2100
2548 strcat(qla2x00_version_str, "-debug");
2549 #endif
2550 qla2xxx_transport_template =
2551 fc_attach_transport(&qla2xxx_transport_functions);
2552 if (!qla2xxx_transport_template)
2553 return -ENODEV;
2554
2555 printk(KERN_INFO "QLogic Fibre Channel HBA Driver\n");
2556 ret = pci_module_init(&qla2xxx_pci_driver);
2557 if (ret) {
2558 kmem_cache_destroy(srb_cachep);
2559 fc_release_transport(qla2xxx_transport_template);
2560 }
2561 return ret;
2562 }
2563
2564 /**
2565 * qla2x00_module_exit - Module cleanup.
2566 **/
2567 static void __exit
2568 qla2x00_module_exit(void)
2569 {
2570 pci_unregister_driver(&qla2xxx_pci_driver);
2571 kmem_cache_destroy(srb_cachep);
2572 fc_release_transport(qla2xxx_transport_template);
2573 }
2574
2575 module_init(qla2x00_module_init);
2576 module_exit(qla2x00_module_exit);
2577
2578 MODULE_AUTHOR("QLogic Corporation");
2579 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
2580 MODULE_LICENSE("GPL");
2581 MODULE_VERSION(QLA2XXX_VERSION);
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree