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[mirror_ubuntu-artful-kernel.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/delay.h>
12 #include <linux/kthread.h>
13
14 #include <scsi/scsi_tcq.h>
15 #include <scsi/scsicam.h>
16 #include <scsi/scsi_transport.h>
17 #include <scsi/scsi_transport_fc.h>
18
19 /*
20 * Driver version
21 */
22 char qla2x00_version_str[40];
23
24 /*
25 * SRB allocation cache
26 */
27 static struct kmem_cache *srb_cachep;
28
29 /*
30 * Ioctl related information.
31 */
32 int num_hosts;
33 int ql2xlogintimeout = 20;
34 module_param(ql2xlogintimeout, int, S_IRUGO|S_IRUSR);
35 MODULE_PARM_DESC(ql2xlogintimeout,
36 "Login timeout value in seconds.");
37
38 int qlport_down_retry;
39 module_param(qlport_down_retry, int, S_IRUGO|S_IRUSR);
40 MODULE_PARM_DESC(qlport_down_retry,
41 "Maximum number of command retries to a port that returns "
42 "a PORT-DOWN status.");
43
44 int ql2xplogiabsentdevice;
45 module_param(ql2xplogiabsentdevice, int, S_IRUGO|S_IWUSR);
46 MODULE_PARM_DESC(ql2xplogiabsentdevice,
47 "Option to enable PLOGI to devices that are not present after "
48 "a Fabric scan. This is needed for several broken switches. "
49 "Default is 0 - no PLOGI. 1 - perfom PLOGI.");
50
51 int ql2xloginretrycount = 0;
52 module_param(ql2xloginretrycount, int, S_IRUGO|S_IRUSR);
53 MODULE_PARM_DESC(ql2xloginretrycount,
54 "Specify an alternate value for the NVRAM login retry count.");
55
56 int ql2xallocfwdump = 1;
57 module_param(ql2xallocfwdump, int, S_IRUGO|S_IRUSR);
58 MODULE_PARM_DESC(ql2xallocfwdump,
59 "Option to enable allocation of memory for a firmware dump "
60 "during HBA initialization. Memory allocation requirements "
61 "vary by ISP type. Default is 1 - allocate memory.");
62
63 int ql2xextended_error_logging;
64 module_param(ql2xextended_error_logging, int, S_IRUGO|S_IWUSR);
65 MODULE_PARM_DESC(ql2xextended_error_logging,
66 "Option to enable extended error logging, "
67 "Default is 0 - no logging. 1 - log errors.");
68
69 static void qla2x00_free_device(scsi_qla_host_t *);
70
71 static void qla2x00_config_dma_addressing(scsi_qla_host_t *ha);
72
73 int ql2xfdmienable;
74 module_param(ql2xfdmienable, int, S_IRUGO|S_IRUSR);
75 MODULE_PARM_DESC(ql2xfdmienable,
76 "Enables FDMI registratons "
77 "Default is 0 - no FDMI. 1 - perfom FDMI.");
78
79 #define MAX_Q_DEPTH 32
80 static int ql2xmaxqdepth = MAX_Q_DEPTH;
81 module_param(ql2xmaxqdepth, int, S_IRUGO|S_IWUSR);
82 MODULE_PARM_DESC(ql2xmaxqdepth,
83 "Maximum queue depth to report for target devices.");
84
85 int ql2xqfullrampup = 120;
86 module_param(ql2xqfullrampup, int, S_IRUGO|S_IWUSR);
87 MODULE_PARM_DESC(ql2xqfullrampup,
88 "Number of seconds to wait to begin to ramp-up the queue "
89 "depth for a device after a queue-full condition has been "
90 "detected. Default is 120 seconds.");
91
92 /*
93 * SCSI host template entry points
94 */
95 static int qla2xxx_slave_configure(struct scsi_device * device);
96 static int qla2xxx_slave_alloc(struct scsi_device *);
97 static int qla2xxx_scan_finished(struct Scsi_Host *, unsigned long time);
98 static void qla2xxx_scan_start(struct Scsi_Host *);
99 static void qla2xxx_slave_destroy(struct scsi_device *);
100 static int qla2x00_queuecommand(struct scsi_cmnd *cmd,
101 void (*fn)(struct scsi_cmnd *));
102 static int qla24xx_queuecommand(struct scsi_cmnd *cmd,
103 void (*fn)(struct scsi_cmnd *));
104 static int qla2xxx_eh_abort(struct scsi_cmnd *);
105 static int qla2xxx_eh_device_reset(struct scsi_cmnd *);
106 static int qla2xxx_eh_bus_reset(struct scsi_cmnd *);
107 static int qla2xxx_eh_host_reset(struct scsi_cmnd *);
108 static int qla2x00_device_reset(scsi_qla_host_t *, fc_port_t *);
109
110 static int qla2x00_change_queue_depth(struct scsi_device *, int);
111 static int qla2x00_change_queue_type(struct scsi_device *, int);
112
113 static struct scsi_host_template qla2x00_driver_template = {
114 .module = THIS_MODULE,
115 .name = QLA2XXX_DRIVER_NAME,
116 .queuecommand = qla2x00_queuecommand,
117
118 .eh_abort_handler = qla2xxx_eh_abort,
119 .eh_device_reset_handler = qla2xxx_eh_device_reset,
120 .eh_bus_reset_handler = qla2xxx_eh_bus_reset,
121 .eh_host_reset_handler = qla2xxx_eh_host_reset,
122
123 .slave_configure = qla2xxx_slave_configure,
124
125 .slave_alloc = qla2xxx_slave_alloc,
126 .slave_destroy = qla2xxx_slave_destroy,
127 .scan_finished = qla2xxx_scan_finished,
128 .scan_start = qla2xxx_scan_start,
129 .change_queue_depth = qla2x00_change_queue_depth,
130 .change_queue_type = qla2x00_change_queue_type,
131 .this_id = -1,
132 .cmd_per_lun = 3,
133 .use_clustering = ENABLE_CLUSTERING,
134 .sg_tablesize = SG_ALL,
135
136 /*
137 * The RISC allows for each command to transfer (2^32-1) bytes of data,
138 * which equates to 0x800000 sectors.
139 */
140 .max_sectors = 0xFFFF,
141 .shost_attrs = qla2x00_host_attrs,
142 };
143
144 struct scsi_host_template qla24xx_driver_template = {
145 .module = THIS_MODULE,
146 .name = QLA2XXX_DRIVER_NAME,
147 .queuecommand = qla24xx_queuecommand,
148
149 .eh_abort_handler = qla2xxx_eh_abort,
150 .eh_device_reset_handler = qla2xxx_eh_device_reset,
151 .eh_bus_reset_handler = qla2xxx_eh_bus_reset,
152 .eh_host_reset_handler = qla2xxx_eh_host_reset,
153
154 .slave_configure = qla2xxx_slave_configure,
155
156 .slave_alloc = qla2xxx_slave_alloc,
157 .slave_destroy = qla2xxx_slave_destroy,
158 .scan_finished = qla2xxx_scan_finished,
159 .scan_start = qla2xxx_scan_start,
160 .change_queue_depth = qla2x00_change_queue_depth,
161 .change_queue_type = qla2x00_change_queue_type,
162 .this_id = -1,
163 .cmd_per_lun = 3,
164 .use_clustering = ENABLE_CLUSTERING,
165 .sg_tablesize = SG_ALL,
166
167 .max_sectors = 0xFFFF,
168 .shost_attrs = qla2x00_host_attrs,
169 };
170
171 static struct scsi_transport_template *qla2xxx_transport_template = NULL;
172 struct scsi_transport_template *qla2xxx_transport_vport_template = NULL;
173
174 /* TODO Convert to inlines
175 *
176 * Timer routines
177 */
178
179 __inline__ void
180 qla2x00_start_timer(scsi_qla_host_t *ha, void *func, unsigned long interval)
181 {
182 init_timer(&ha->timer);
183 ha->timer.expires = jiffies + interval * HZ;
184 ha->timer.data = (unsigned long)ha;
185 ha->timer.function = (void (*)(unsigned long))func;
186 add_timer(&ha->timer);
187 ha->timer_active = 1;
188 }
189
190 static inline void
191 qla2x00_restart_timer(scsi_qla_host_t *ha, unsigned long interval)
192 {
193 mod_timer(&ha->timer, jiffies + interval * HZ);
194 }
195
196 static __inline__ void
197 qla2x00_stop_timer(scsi_qla_host_t *ha)
198 {
199 del_timer_sync(&ha->timer);
200 ha->timer_active = 0;
201 }
202
203 static int qla2x00_do_dpc(void *data);
204
205 static void qla2x00_rst_aen(scsi_qla_host_t *);
206
207 static uint8_t qla2x00_mem_alloc(scsi_qla_host_t *);
208 static void qla2x00_mem_free(scsi_qla_host_t *ha);
209 static int qla2x00_allocate_sp_pool( scsi_qla_host_t *ha);
210 static void qla2x00_free_sp_pool(scsi_qla_host_t *ha);
211 static void qla2x00_sp_free_dma(scsi_qla_host_t *, srb_t *);
212
213 /* -------------------------------------------------------------------------- */
214
215 static char *
216 qla2x00_pci_info_str(struct scsi_qla_host *ha, char *str)
217 {
218 static char *pci_bus_modes[] = {
219 "33", "66", "100", "133",
220 };
221 uint16_t pci_bus;
222
223 strcpy(str, "PCI");
224 pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
225 if (pci_bus) {
226 strcat(str, "-X (");
227 strcat(str, pci_bus_modes[pci_bus]);
228 } else {
229 pci_bus = (ha->pci_attr & BIT_8) >> 8;
230 strcat(str, " (");
231 strcat(str, pci_bus_modes[pci_bus]);
232 }
233 strcat(str, " MHz)");
234
235 return (str);
236 }
237
238 static char *
239 qla24xx_pci_info_str(struct scsi_qla_host *ha, char *str)
240 {
241 static char *pci_bus_modes[] = { "33", "66", "100", "133", };
242 uint32_t pci_bus;
243 int pcie_reg;
244
245 pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
246 if (pcie_reg) {
247 char lwstr[6];
248 uint16_t pcie_lstat, lspeed, lwidth;
249
250 pcie_reg += 0x12;
251 pci_read_config_word(ha->pdev, pcie_reg, &pcie_lstat);
252 lspeed = pcie_lstat & (BIT_0 | BIT_1 | BIT_2 | BIT_3);
253 lwidth = (pcie_lstat &
254 (BIT_4 | BIT_5 | BIT_6 | BIT_7 | BIT_8 | BIT_9)) >> 4;
255
256 strcpy(str, "PCIe (");
257 if (lspeed == 1)
258 strcat(str, "2.5Gb/s ");
259 else if (lspeed == 2)
260 strcat(str, "5.0Gb/s ");
261 else
262 strcat(str, "<unknown> ");
263 snprintf(lwstr, sizeof(lwstr), "x%d)", lwidth);
264 strcat(str, lwstr);
265
266 return str;
267 }
268
269 strcpy(str, "PCI");
270 pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
271 if (pci_bus == 0 || pci_bus == 8) {
272 strcat(str, " (");
273 strcat(str, pci_bus_modes[pci_bus >> 3]);
274 } else {
275 strcat(str, "-X ");
276 if (pci_bus & BIT_2)
277 strcat(str, "Mode 2");
278 else
279 strcat(str, "Mode 1");
280 strcat(str, " (");
281 strcat(str, pci_bus_modes[pci_bus & ~BIT_2]);
282 }
283 strcat(str, " MHz)");
284
285 return str;
286 }
287
288 static char *
289 qla2x00_fw_version_str(struct scsi_qla_host *ha, char *str)
290 {
291 char un_str[10];
292
293 sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
294 ha->fw_minor_version,
295 ha->fw_subminor_version);
296
297 if (ha->fw_attributes & BIT_9) {
298 strcat(str, "FLX");
299 return (str);
300 }
301
302 switch (ha->fw_attributes & 0xFF) {
303 case 0x7:
304 strcat(str, "EF");
305 break;
306 case 0x17:
307 strcat(str, "TP");
308 break;
309 case 0x37:
310 strcat(str, "IP");
311 break;
312 case 0x77:
313 strcat(str, "VI");
314 break;
315 default:
316 sprintf(un_str, "(%x)", ha->fw_attributes);
317 strcat(str, un_str);
318 break;
319 }
320 if (ha->fw_attributes & 0x100)
321 strcat(str, "X");
322
323 return (str);
324 }
325
326 static char *
327 qla24xx_fw_version_str(struct scsi_qla_host *ha, char *str)
328 {
329 sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
330 ha->fw_minor_version,
331 ha->fw_subminor_version);
332
333 if (ha->fw_attributes & BIT_0)
334 strcat(str, "[Class 2] ");
335 if (ha->fw_attributes & BIT_1)
336 strcat(str, "[IP] ");
337 if (ha->fw_attributes & BIT_2)
338 strcat(str, "[Multi-ID] ");
339 if (ha->fw_attributes & BIT_3)
340 strcat(str, "[SB-2] ");
341 if (ha->fw_attributes & BIT_4)
342 strcat(str, "[T10 CRC] ");
343 if (ha->fw_attributes & BIT_5)
344 strcat(str, "[VI] ");
345 if (ha->fw_attributes & BIT_13)
346 strcat(str, "[Experimental]");
347 return str;
348 }
349
350 static inline srb_t *
351 qla2x00_get_new_sp(scsi_qla_host_t *ha, fc_port_t *fcport,
352 struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
353 {
354 srb_t *sp;
355
356 sp = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
357 if (!sp)
358 return sp;
359
360 sp->ha = ha;
361 sp->fcport = fcport;
362 sp->cmd = cmd;
363 sp->flags = 0;
364 CMD_SP(cmd) = (void *)sp;
365 cmd->scsi_done = done;
366
367 return sp;
368 }
369
370 static int
371 qla2x00_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
372 {
373 scsi_qla_host_t *ha = shost_priv(cmd->device->host);
374 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
375 struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
376 srb_t *sp;
377 int rval;
378
379 if (unlikely(pci_channel_offline(ha->pdev))) {
380 cmd->result = DID_REQUEUE << 16;
381 goto qc_fail_command;
382 }
383
384 rval = fc_remote_port_chkready(rport);
385 if (rval) {
386 cmd->result = rval;
387 goto qc_fail_command;
388 }
389
390 /* Close window on fcport/rport state-transitioning. */
391 if (!*(fc_port_t **)rport->dd_data) {
392 cmd->result = DID_IMM_RETRY << 16;
393 goto qc_fail_command;
394 }
395
396 if (atomic_read(&fcport->state) != FCS_ONLINE) {
397 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
398 atomic_read(&ha->loop_state) == LOOP_DEAD) {
399 cmd->result = DID_NO_CONNECT << 16;
400 goto qc_fail_command;
401 }
402 goto qc_host_busy;
403 }
404
405 spin_unlock_irq(ha->host->host_lock);
406
407 sp = qla2x00_get_new_sp(ha, fcport, cmd, done);
408 if (!sp)
409 goto qc_host_busy_lock;
410
411 rval = qla2x00_start_scsi(sp);
412 if (rval != QLA_SUCCESS)
413 goto qc_host_busy_free_sp;
414
415 spin_lock_irq(ha->host->host_lock);
416
417 return 0;
418
419 qc_host_busy_free_sp:
420 qla2x00_sp_free_dma(ha, sp);
421 mempool_free(sp, ha->srb_mempool);
422
423 qc_host_busy_lock:
424 spin_lock_irq(ha->host->host_lock);
425
426 qc_host_busy:
427 return SCSI_MLQUEUE_HOST_BUSY;
428
429 qc_fail_command:
430 done(cmd);
431
432 return 0;
433 }
434
435
436 static int
437 qla24xx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
438 {
439 scsi_qla_host_t *ha = shost_priv(cmd->device->host);
440 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
441 struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
442 srb_t *sp;
443 int rval;
444 scsi_qla_host_t *pha = to_qla_parent(ha);
445
446 if (unlikely(pci_channel_offline(ha->pdev))) {
447 cmd->result = DID_REQUEUE << 16;
448 goto qc24_fail_command;
449 }
450
451 rval = fc_remote_port_chkready(rport);
452 if (rval) {
453 cmd->result = rval;
454 goto qc24_fail_command;
455 }
456
457 /* Close window on fcport/rport state-transitioning. */
458 if (!*(fc_port_t **)rport->dd_data) {
459 cmd->result = DID_IMM_RETRY << 16;
460 goto qc24_fail_command;
461 }
462
463 if (atomic_read(&fcport->state) != FCS_ONLINE) {
464 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
465 atomic_read(&pha->loop_state) == LOOP_DEAD) {
466 cmd->result = DID_NO_CONNECT << 16;
467 goto qc24_fail_command;
468 }
469 goto qc24_host_busy;
470 }
471
472 spin_unlock_irq(ha->host->host_lock);
473
474 sp = qla2x00_get_new_sp(pha, fcport, cmd, done);
475 if (!sp)
476 goto qc24_host_busy_lock;
477
478 rval = qla24xx_start_scsi(sp);
479 if (rval != QLA_SUCCESS)
480 goto qc24_host_busy_free_sp;
481
482 spin_lock_irq(ha->host->host_lock);
483
484 return 0;
485
486 qc24_host_busy_free_sp:
487 qla2x00_sp_free_dma(pha, sp);
488 mempool_free(sp, pha->srb_mempool);
489
490 qc24_host_busy_lock:
491 spin_lock_irq(ha->host->host_lock);
492
493 qc24_host_busy:
494 return SCSI_MLQUEUE_HOST_BUSY;
495
496 qc24_fail_command:
497 done(cmd);
498
499 return 0;
500 }
501
502
503 /*
504 * qla2x00_eh_wait_on_command
505 * Waits for the command to be returned by the Firmware for some
506 * max time.
507 *
508 * Input:
509 * ha = actual ha whose done queue will contain the command
510 * returned by firmware.
511 * cmd = Scsi Command to wait on.
512 * flag = Abort/Reset(Bus or Device Reset)
513 *
514 * Return:
515 * Not Found : 0
516 * Found : 1
517 */
518 static int
519 qla2x00_eh_wait_on_command(scsi_qla_host_t *ha, struct scsi_cmnd *cmd)
520 {
521 #define ABORT_POLLING_PERIOD 1000
522 #define ABORT_WAIT_ITER ((10 * 1000) / (ABORT_POLLING_PERIOD))
523 unsigned long wait_iter = ABORT_WAIT_ITER;
524 int ret = QLA_SUCCESS;
525
526 while (CMD_SP(cmd)) {
527 msleep(ABORT_POLLING_PERIOD);
528
529 if (--wait_iter)
530 break;
531 }
532 if (CMD_SP(cmd))
533 ret = QLA_FUNCTION_FAILED;
534
535 return ret;
536 }
537
538 /*
539 * qla2x00_wait_for_hba_online
540 * Wait till the HBA is online after going through
541 * <= MAX_RETRIES_OF_ISP_ABORT or
542 * finally HBA is disabled ie marked offline
543 *
544 * Input:
545 * ha - pointer to host adapter structure
546 *
547 * Note:
548 * Does context switching-Release SPIN_LOCK
549 * (if any) before calling this routine.
550 *
551 * Return:
552 * Success (Adapter is online) : 0
553 * Failed (Adapter is offline/disabled) : 1
554 */
555 int
556 qla2x00_wait_for_hba_online(scsi_qla_host_t *ha)
557 {
558 int return_status;
559 unsigned long wait_online;
560 scsi_qla_host_t *pha = to_qla_parent(ha);
561
562 wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
563 while (((test_bit(ISP_ABORT_NEEDED, &pha->dpc_flags)) ||
564 test_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags) ||
565 test_bit(ISP_ABORT_RETRY, &pha->dpc_flags) ||
566 pha->dpc_active) && time_before(jiffies, wait_online)) {
567
568 msleep(1000);
569 }
570 if (pha->flags.online)
571 return_status = QLA_SUCCESS;
572 else
573 return_status = QLA_FUNCTION_FAILED;
574
575 DEBUG2(printk("%s return_status=%d\n",__func__,return_status));
576
577 return (return_status);
578 }
579
580 /*
581 * qla2x00_wait_for_loop_ready
582 * Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
583 * to be in LOOP_READY state.
584 * Input:
585 * ha - pointer to host adapter structure
586 *
587 * Note:
588 * Does context switching-Release SPIN_LOCK
589 * (if any) before calling this routine.
590 *
591 *
592 * Return:
593 * Success (LOOP_READY) : 0
594 * Failed (LOOP_NOT_READY) : 1
595 */
596 static inline int
597 qla2x00_wait_for_loop_ready(scsi_qla_host_t *ha)
598 {
599 int return_status = QLA_SUCCESS;
600 unsigned long loop_timeout ;
601 scsi_qla_host_t *pha = to_qla_parent(ha);
602
603 /* wait for 5 min at the max for loop to be ready */
604 loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ);
605
606 while ((!atomic_read(&pha->loop_down_timer) &&
607 atomic_read(&pha->loop_state) == LOOP_DOWN) ||
608 atomic_read(&pha->loop_state) != LOOP_READY) {
609 if (atomic_read(&pha->loop_state) == LOOP_DEAD) {
610 return_status = QLA_FUNCTION_FAILED;
611 break;
612 }
613 msleep(1000);
614 if (time_after_eq(jiffies, loop_timeout)) {
615 return_status = QLA_FUNCTION_FAILED;
616 break;
617 }
618 }
619 return (return_status);
620 }
621
622 static void
623 qla2x00_block_error_handler(struct scsi_cmnd *cmnd)
624 {
625 struct Scsi_Host *shost = cmnd->device->host;
626 struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device));
627 unsigned long flags;
628
629 spin_lock_irqsave(shost->host_lock, flags);
630 while (rport->port_state == FC_PORTSTATE_BLOCKED) {
631 spin_unlock_irqrestore(shost->host_lock, flags);
632 msleep(1000);
633 spin_lock_irqsave(shost->host_lock, flags);
634 }
635 spin_unlock_irqrestore(shost->host_lock, flags);
636 return;
637 }
638
639 /**************************************************************************
640 * qla2xxx_eh_abort
641 *
642 * Description:
643 * The abort function will abort the specified command.
644 *
645 * Input:
646 * cmd = Linux SCSI command packet to be aborted.
647 *
648 * Returns:
649 * Either SUCCESS or FAILED.
650 *
651 * Note:
652 * Only return FAILED if command not returned by firmware.
653 **************************************************************************/
654 static int
655 qla2xxx_eh_abort(struct scsi_cmnd *cmd)
656 {
657 scsi_qla_host_t *ha = shost_priv(cmd->device->host);
658 srb_t *sp;
659 int ret, i;
660 unsigned int id, lun;
661 unsigned long serial;
662 unsigned long flags;
663 int wait = 0;
664 scsi_qla_host_t *pha = to_qla_parent(ha);
665
666 qla2x00_block_error_handler(cmd);
667
668 if (!CMD_SP(cmd))
669 return SUCCESS;
670
671 ret = SUCCESS;
672
673 id = cmd->device->id;
674 lun = cmd->device->lun;
675 serial = cmd->serial_number;
676
677 /* Check active list for command command. */
678 spin_lock_irqsave(&pha->hardware_lock, flags);
679 for (i = 1; i < MAX_OUTSTANDING_COMMANDS; i++) {
680 sp = pha->outstanding_cmds[i];
681
682 if (sp == NULL)
683 continue;
684
685 if (sp->cmd != cmd)
686 continue;
687
688 DEBUG2(printk("%s(%ld): aborting sp %p from RISC. pid=%ld.\n",
689 __func__, ha->host_no, sp, serial));
690 DEBUG3(qla2x00_print_scsi_cmd(cmd));
691
692 spin_unlock_irqrestore(&pha->hardware_lock, flags);
693 if (ha->isp_ops->abort_command(ha, sp)) {
694 DEBUG2(printk("%s(%ld): abort_command "
695 "mbx failed.\n", __func__, ha->host_no));
696 } else {
697 DEBUG3(printk("%s(%ld): abort_command "
698 "mbx success.\n", __func__, ha->host_no));
699 wait = 1;
700 }
701 spin_lock_irqsave(&pha->hardware_lock, flags);
702
703 break;
704 }
705 spin_unlock_irqrestore(&pha->hardware_lock, flags);
706
707 /* Wait for the command to be returned. */
708 if (wait) {
709 if (qla2x00_eh_wait_on_command(ha, cmd) != QLA_SUCCESS) {
710 qla_printk(KERN_ERR, ha,
711 "scsi(%ld:%d:%d): Abort handler timed out -- %lx "
712 "%x.\n", ha->host_no, id, lun, serial, ret);
713 ret = FAILED;
714 }
715 }
716
717 qla_printk(KERN_INFO, ha,
718 "scsi(%ld:%d:%d): Abort command issued -- %d %lx %x.\n",
719 ha->host_no, id, lun, wait, serial, ret);
720
721 return ret;
722 }
723
724 /**************************************************************************
725 * qla2x00_eh_wait_for_pending_target_commands
726 *
727 * Description:
728 * Waits for all the commands to come back from the specified target.
729 *
730 * Input:
731 * ha - pointer to scsi_qla_host structure.
732 * t - target
733 * Returns:
734 * Either SUCCESS or FAILED.
735 *
736 * Note:
737 **************************************************************************/
738 static int
739 qla2x00_eh_wait_for_pending_target_commands(scsi_qla_host_t *ha, unsigned int t)
740 {
741 int cnt;
742 int status;
743 srb_t *sp;
744 struct scsi_cmnd *cmd;
745 unsigned long flags;
746 scsi_qla_host_t *pha = to_qla_parent(ha);
747
748 status = 0;
749
750 /*
751 * Waiting for all commands for the designated target in the active
752 * array
753 */
754 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
755 spin_lock_irqsave(&pha->hardware_lock, flags);
756 sp = pha->outstanding_cmds[cnt];
757 if (sp) {
758 cmd = sp->cmd;
759 spin_unlock_irqrestore(&pha->hardware_lock, flags);
760 if (cmd->device->id == t &&
761 ha->vp_idx == sp->ha->vp_idx) {
762 if (!qla2x00_eh_wait_on_command(ha, cmd)) {
763 status = 1;
764 break;
765 }
766 }
767 } else {
768 spin_unlock_irqrestore(&pha->hardware_lock, flags);
769 }
770 }
771 return (status);
772 }
773
774
775 /**************************************************************************
776 * qla2xxx_eh_device_reset
777 *
778 * Description:
779 * The device reset function will reset the target and abort any
780 * executing commands.
781 *
782 * NOTE: The use of SP is undefined within this context. Do *NOT*
783 * attempt to use this value, even if you determine it is
784 * non-null.
785 *
786 * Input:
787 * cmd = Linux SCSI command packet of the command that cause the
788 * bus device reset.
789 *
790 * Returns:
791 * SUCCESS/FAILURE (defined as macro in scsi.h).
792 *
793 **************************************************************************/
794 static int
795 qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
796 {
797 scsi_qla_host_t *ha = shost_priv(cmd->device->host);
798 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
799 int ret = FAILED;
800 unsigned int id, lun;
801 unsigned long serial;
802
803 qla2x00_block_error_handler(cmd);
804
805 id = cmd->device->id;
806 lun = cmd->device->lun;
807 serial = cmd->serial_number;
808
809 if (!fcport)
810 return ret;
811
812 qla_printk(KERN_INFO, ha,
813 "scsi(%ld:%d:%d): DEVICE RESET ISSUED.\n", ha->host_no, id, lun);
814
815 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
816 goto eh_dev_reset_done;
817
818 if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
819 if (qla2x00_device_reset(ha, fcport) == 0)
820 ret = SUCCESS;
821
822 #if defined(LOGOUT_AFTER_DEVICE_RESET)
823 if (ret == SUCCESS) {
824 if (fcport->flags & FC_FABRIC_DEVICE) {
825 ha->isp_ops->fabric_logout(ha, fcport->loop_id);
826 qla2x00_mark_device_lost(ha, fcport, 0, 0);
827 }
828 }
829 #endif
830 } else {
831 DEBUG2(printk(KERN_INFO
832 "%s failed: loop not ready\n",__func__));
833 }
834
835 if (ret == FAILED) {
836 DEBUG3(printk("%s(%ld): device reset failed\n",
837 __func__, ha->host_no));
838 qla_printk(KERN_INFO, ha, "%s: device reset failed\n",
839 __func__);
840
841 goto eh_dev_reset_done;
842 }
843
844 /* Flush outstanding commands. */
845 if (qla2x00_eh_wait_for_pending_target_commands(ha, id))
846 ret = FAILED;
847 if (ret == FAILED) {
848 DEBUG3(printk("%s(%ld): failed while waiting for commands\n",
849 __func__, ha->host_no));
850 qla_printk(KERN_INFO, ha,
851 "%s: failed while waiting for commands\n", __func__);
852 } else
853 qla_printk(KERN_INFO, ha,
854 "scsi(%ld:%d:%d): DEVICE RESET SUCCEEDED.\n", ha->host_no,
855 id, lun);
856 eh_dev_reset_done:
857 return ret;
858 }
859
860 /**************************************************************************
861 * qla2x00_eh_wait_for_pending_commands
862 *
863 * Description:
864 * Waits for all the commands to come back from the specified host.
865 *
866 * Input:
867 * ha - pointer to scsi_qla_host structure.
868 *
869 * Returns:
870 * 1 : SUCCESS
871 * 0 : FAILED
872 *
873 * Note:
874 **************************************************************************/
875 static int
876 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *ha)
877 {
878 int cnt;
879 int status;
880 srb_t *sp;
881 struct scsi_cmnd *cmd;
882 unsigned long flags;
883
884 status = 1;
885
886 /*
887 * Waiting for all commands for the designated target in the active
888 * array
889 */
890 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
891 spin_lock_irqsave(&ha->hardware_lock, flags);
892 sp = ha->outstanding_cmds[cnt];
893 if (sp) {
894 cmd = sp->cmd;
895 spin_unlock_irqrestore(&ha->hardware_lock, flags);
896 status = qla2x00_eh_wait_on_command(ha, cmd);
897 if (status == 0)
898 break;
899 }
900 else {
901 spin_unlock_irqrestore(&ha->hardware_lock, flags);
902 }
903 }
904 return (status);
905 }
906
907
908 /**************************************************************************
909 * qla2xxx_eh_bus_reset
910 *
911 * Description:
912 * The bus reset function will reset the bus and abort any executing
913 * commands.
914 *
915 * Input:
916 * cmd = Linux SCSI command packet of the command that cause the
917 * bus reset.
918 *
919 * Returns:
920 * SUCCESS/FAILURE (defined as macro in scsi.h).
921 *
922 **************************************************************************/
923 static int
924 qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
925 {
926 scsi_qla_host_t *ha = shost_priv(cmd->device->host);
927 scsi_qla_host_t *pha = to_qla_parent(ha);
928 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
929 int ret = FAILED;
930 unsigned int id, lun;
931 unsigned long serial;
932
933 qla2x00_block_error_handler(cmd);
934
935 id = cmd->device->id;
936 lun = cmd->device->lun;
937 serial = cmd->serial_number;
938
939 if (!fcport)
940 return ret;
941
942 qla_printk(KERN_INFO, ha,
943 "scsi(%ld:%d:%d): LOOP RESET ISSUED.\n", ha->host_no, id, lun);
944
945 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS) {
946 DEBUG2(printk("%s failed:board disabled\n",__func__));
947 goto eh_bus_reset_done;
948 }
949
950 if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
951 if (qla2x00_loop_reset(ha) == QLA_SUCCESS)
952 ret = SUCCESS;
953 }
954 if (ret == FAILED)
955 goto eh_bus_reset_done;
956
957 /* Flush outstanding commands. */
958 if (!qla2x00_eh_wait_for_pending_commands(pha))
959 ret = FAILED;
960
961 eh_bus_reset_done:
962 qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
963 (ret == FAILED) ? "failed" : "succeded");
964
965 return ret;
966 }
967
968 /**************************************************************************
969 * qla2xxx_eh_host_reset
970 *
971 * Description:
972 * The reset function will reset the Adapter.
973 *
974 * Input:
975 * cmd = Linux SCSI command packet of the command that cause the
976 * adapter reset.
977 *
978 * Returns:
979 * Either SUCCESS or FAILED.
980 *
981 * Note:
982 **************************************************************************/
983 static int
984 qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
985 {
986 scsi_qla_host_t *ha = shost_priv(cmd->device->host);
987 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
988 int ret = FAILED;
989 unsigned int id, lun;
990 unsigned long serial;
991 scsi_qla_host_t *pha = to_qla_parent(ha);
992
993 qla2x00_block_error_handler(cmd);
994
995 id = cmd->device->id;
996 lun = cmd->device->lun;
997 serial = cmd->serial_number;
998
999 if (!fcport)
1000 return ret;
1001
1002 qla_printk(KERN_INFO, ha,
1003 "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", ha->host_no, id, lun);
1004
1005 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
1006 goto eh_host_reset_lock;
1007
1008 /*
1009 * Fixme-may be dpc thread is active and processing
1010 * loop_resync,so wait a while for it to
1011 * be completed and then issue big hammer.Otherwise
1012 * it may cause I/O failure as big hammer marks the
1013 * devices as lost kicking of the port_down_timer
1014 * while dpc is stuck for the mailbox to complete.
1015 */
1016 qla2x00_wait_for_loop_ready(ha);
1017 set_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags);
1018 if (qla2x00_abort_isp(pha)) {
1019 clear_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags);
1020 /* failed. schedule dpc to try */
1021 set_bit(ISP_ABORT_NEEDED, &pha->dpc_flags);
1022
1023 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
1024 goto eh_host_reset_lock;
1025 }
1026 clear_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags);
1027
1028 /* Waiting for our command in done_queue to be returned to OS.*/
1029 if (qla2x00_eh_wait_for_pending_commands(pha))
1030 ret = SUCCESS;
1031
1032 if (ha->parent)
1033 qla2x00_vp_abort_isp(ha);
1034
1035 eh_host_reset_lock:
1036 qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
1037 (ret == FAILED) ? "failed" : "succeded");
1038
1039 return ret;
1040 }
1041
1042 /*
1043 * qla2x00_loop_reset
1044 * Issue loop reset.
1045 *
1046 * Input:
1047 * ha = adapter block pointer.
1048 *
1049 * Returns:
1050 * 0 = success
1051 */
1052 int
1053 qla2x00_loop_reset(scsi_qla_host_t *ha)
1054 {
1055 int ret;
1056 struct fc_port *fcport;
1057
1058 if (ha->flags.enable_lip_full_login) {
1059 ret = qla2x00_full_login_lip(ha);
1060 if (ret != QLA_SUCCESS) {
1061 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1062 "full_login_lip=%d.\n", __func__, ha->host_no,
1063 ret));
1064 }
1065 atomic_set(&ha->loop_state, LOOP_DOWN);
1066 atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
1067 qla2x00_mark_all_devices_lost(ha, 0);
1068 qla2x00_wait_for_loop_ready(ha);
1069 }
1070
1071 if (ha->flags.enable_lip_reset) {
1072 ret = qla2x00_lip_reset(ha);
1073 if (ret != QLA_SUCCESS) {
1074 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1075 "lip_reset=%d.\n", __func__, ha->host_no, ret));
1076 }
1077 qla2x00_wait_for_loop_ready(ha);
1078 }
1079
1080 if (ha->flags.enable_target_reset) {
1081 list_for_each_entry(fcport, &ha->fcports, list) {
1082 if (fcport->port_type != FCT_TARGET)
1083 continue;
1084
1085 ret = qla2x00_device_reset(ha, fcport);
1086 if (ret != QLA_SUCCESS) {
1087 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1088 "target_reset=%d d_id=%x.\n", __func__,
1089 ha->host_no, ret, fcport->d_id.b24));
1090 }
1091 }
1092 }
1093
1094 /* Issue marker command only when we are going to start the I/O */
1095 ha->marker_needed = 1;
1096
1097 return QLA_SUCCESS;
1098 }
1099
1100 /*
1101 * qla2x00_device_reset
1102 * Issue bus device reset message to the target.
1103 *
1104 * Input:
1105 * ha = adapter block pointer.
1106 * t = SCSI ID.
1107 * TARGET_QUEUE_LOCK must be released.
1108 * ADAPTER_STATE_LOCK must be released.
1109 *
1110 * Context:
1111 * Kernel context.
1112 */
1113 static int
1114 qla2x00_device_reset(scsi_qla_host_t *ha, fc_port_t *reset_fcport)
1115 {
1116 /* Abort Target command will clear Reservation */
1117 return ha->isp_ops->abort_target(reset_fcport);
1118 }
1119
1120 static int
1121 qla2xxx_slave_alloc(struct scsi_device *sdev)
1122 {
1123 struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1124
1125 if (!rport || fc_remote_port_chkready(rport))
1126 return -ENXIO;
1127
1128 sdev->hostdata = *(fc_port_t **)rport->dd_data;
1129
1130 return 0;
1131 }
1132
1133 static int
1134 qla2xxx_slave_configure(struct scsi_device *sdev)
1135 {
1136 scsi_qla_host_t *ha = shost_priv(sdev->host);
1137 struct fc_rport *rport = starget_to_rport(sdev->sdev_target);
1138
1139 if (sdev->tagged_supported)
1140 scsi_activate_tcq(sdev, ha->max_q_depth);
1141 else
1142 scsi_deactivate_tcq(sdev, ha->max_q_depth);
1143
1144 rport->dev_loss_tmo = ha->port_down_retry_count + 5;
1145
1146 return 0;
1147 }
1148
1149 static void
1150 qla2xxx_slave_destroy(struct scsi_device *sdev)
1151 {
1152 sdev->hostdata = NULL;
1153 }
1154
1155 static int
1156 qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth)
1157 {
1158 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1159 return sdev->queue_depth;
1160 }
1161
1162 static int
1163 qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1164 {
1165 if (sdev->tagged_supported) {
1166 scsi_set_tag_type(sdev, tag_type);
1167 if (tag_type)
1168 scsi_activate_tcq(sdev, sdev->queue_depth);
1169 else
1170 scsi_deactivate_tcq(sdev, sdev->queue_depth);
1171 } else
1172 tag_type = 0;
1173
1174 return tag_type;
1175 }
1176
1177 /**
1178 * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1179 * @ha: HA context
1180 *
1181 * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1182 * supported addressing method.
1183 */
1184 static void
1185 qla2x00_config_dma_addressing(scsi_qla_host_t *ha)
1186 {
1187 /* Assume a 32bit DMA mask. */
1188 ha->flags.enable_64bit_addressing = 0;
1189
1190 if (!dma_set_mask(&ha->pdev->dev, DMA_64BIT_MASK)) {
1191 /* Any upper-dword bits set? */
1192 if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1193 !pci_set_consistent_dma_mask(ha->pdev, DMA_64BIT_MASK)) {
1194 /* Ok, a 64bit DMA mask is applicable. */
1195 ha->flags.enable_64bit_addressing = 1;
1196 ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64;
1197 ha->isp_ops->build_iocbs = qla2x00_build_scsi_iocbs_64;
1198 return;
1199 }
1200 }
1201
1202 dma_set_mask(&ha->pdev->dev, DMA_32BIT_MASK);
1203 pci_set_consistent_dma_mask(ha->pdev, DMA_32BIT_MASK);
1204 }
1205
1206 static void
1207 qla2x00_enable_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 = 1;
1214 /* enable risc and host interrupts */
1215 WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1216 RD_REG_WORD(&reg->ictrl);
1217 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1218
1219 }
1220
1221 static void
1222 qla2x00_disable_intrs(scsi_qla_host_t *ha)
1223 {
1224 unsigned long flags = 0;
1225 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1226
1227 spin_lock_irqsave(&ha->hardware_lock, flags);
1228 ha->interrupts_on = 0;
1229 /* disable risc and host interrupts */
1230 WRT_REG_WORD(&reg->ictrl, 0);
1231 RD_REG_WORD(&reg->ictrl);
1232 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1233 }
1234
1235 static void
1236 qla24xx_enable_intrs(scsi_qla_host_t *ha)
1237 {
1238 unsigned long flags = 0;
1239 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1240
1241 spin_lock_irqsave(&ha->hardware_lock, flags);
1242 ha->interrupts_on = 1;
1243 WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1244 RD_REG_DWORD(&reg->ictrl);
1245 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1246 }
1247
1248 static void
1249 qla24xx_disable_intrs(scsi_qla_host_t *ha)
1250 {
1251 unsigned long flags = 0;
1252 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1253
1254 spin_lock_irqsave(&ha->hardware_lock, flags);
1255 ha->interrupts_on = 0;
1256 WRT_REG_DWORD(&reg->ictrl, 0);
1257 RD_REG_DWORD(&reg->ictrl);
1258 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1259 }
1260
1261 static struct isp_operations qla2100_isp_ops = {
1262 .pci_config = qla2100_pci_config,
1263 .reset_chip = qla2x00_reset_chip,
1264 .chip_diag = qla2x00_chip_diag,
1265 .config_rings = qla2x00_config_rings,
1266 .reset_adapter = qla2x00_reset_adapter,
1267 .nvram_config = qla2x00_nvram_config,
1268 .update_fw_options = qla2x00_update_fw_options,
1269 .load_risc = qla2x00_load_risc,
1270 .pci_info_str = qla2x00_pci_info_str,
1271 .fw_version_str = qla2x00_fw_version_str,
1272 .intr_handler = qla2100_intr_handler,
1273 .enable_intrs = qla2x00_enable_intrs,
1274 .disable_intrs = qla2x00_disable_intrs,
1275 .abort_command = qla2x00_abort_command,
1276 .abort_target = qla2x00_abort_target,
1277 .fabric_login = qla2x00_login_fabric,
1278 .fabric_logout = qla2x00_fabric_logout,
1279 .calc_req_entries = qla2x00_calc_iocbs_32,
1280 .build_iocbs = qla2x00_build_scsi_iocbs_32,
1281 .prep_ms_iocb = qla2x00_prep_ms_iocb,
1282 .prep_ms_fdmi_iocb = qla2x00_prep_ms_fdmi_iocb,
1283 .read_nvram = qla2x00_read_nvram_data,
1284 .write_nvram = qla2x00_write_nvram_data,
1285 .fw_dump = qla2100_fw_dump,
1286 .beacon_on = NULL,
1287 .beacon_off = NULL,
1288 .beacon_blink = NULL,
1289 .read_optrom = qla2x00_read_optrom_data,
1290 .write_optrom = qla2x00_write_optrom_data,
1291 .get_flash_version = qla2x00_get_flash_version,
1292 };
1293
1294 static struct isp_operations qla2300_isp_ops = {
1295 .pci_config = qla2300_pci_config,
1296 .reset_chip = qla2x00_reset_chip,
1297 .chip_diag = qla2x00_chip_diag,
1298 .config_rings = qla2x00_config_rings,
1299 .reset_adapter = qla2x00_reset_adapter,
1300 .nvram_config = qla2x00_nvram_config,
1301 .update_fw_options = qla2x00_update_fw_options,
1302 .load_risc = qla2x00_load_risc,
1303 .pci_info_str = qla2x00_pci_info_str,
1304 .fw_version_str = qla2x00_fw_version_str,
1305 .intr_handler = qla2300_intr_handler,
1306 .enable_intrs = qla2x00_enable_intrs,
1307 .disable_intrs = qla2x00_disable_intrs,
1308 .abort_command = qla2x00_abort_command,
1309 .abort_target = qla2x00_abort_target,
1310 .fabric_login = qla2x00_login_fabric,
1311 .fabric_logout = qla2x00_fabric_logout,
1312 .calc_req_entries = qla2x00_calc_iocbs_32,
1313 .build_iocbs = qla2x00_build_scsi_iocbs_32,
1314 .prep_ms_iocb = qla2x00_prep_ms_iocb,
1315 .prep_ms_fdmi_iocb = qla2x00_prep_ms_fdmi_iocb,
1316 .read_nvram = qla2x00_read_nvram_data,
1317 .write_nvram = qla2x00_write_nvram_data,
1318 .fw_dump = qla2300_fw_dump,
1319 .beacon_on = qla2x00_beacon_on,
1320 .beacon_off = qla2x00_beacon_off,
1321 .beacon_blink = qla2x00_beacon_blink,
1322 .read_optrom = qla2x00_read_optrom_data,
1323 .write_optrom = qla2x00_write_optrom_data,
1324 .get_flash_version = qla2x00_get_flash_version,
1325 };
1326
1327 static struct isp_operations qla24xx_isp_ops = {
1328 .pci_config = qla24xx_pci_config,
1329 .reset_chip = qla24xx_reset_chip,
1330 .chip_diag = qla24xx_chip_diag,
1331 .config_rings = qla24xx_config_rings,
1332 .reset_adapter = qla24xx_reset_adapter,
1333 .nvram_config = qla24xx_nvram_config,
1334 .update_fw_options = qla24xx_update_fw_options,
1335 .load_risc = qla24xx_load_risc,
1336 .pci_info_str = qla24xx_pci_info_str,
1337 .fw_version_str = qla24xx_fw_version_str,
1338 .intr_handler = qla24xx_intr_handler,
1339 .enable_intrs = qla24xx_enable_intrs,
1340 .disable_intrs = qla24xx_disable_intrs,
1341 .abort_command = qla24xx_abort_command,
1342 .abort_target = qla24xx_abort_target,
1343 .fabric_login = qla24xx_login_fabric,
1344 .fabric_logout = qla24xx_fabric_logout,
1345 .calc_req_entries = NULL,
1346 .build_iocbs = NULL,
1347 .prep_ms_iocb = qla24xx_prep_ms_iocb,
1348 .prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb,
1349 .read_nvram = qla24xx_read_nvram_data,
1350 .write_nvram = qla24xx_write_nvram_data,
1351 .fw_dump = qla24xx_fw_dump,
1352 .beacon_on = qla24xx_beacon_on,
1353 .beacon_off = qla24xx_beacon_off,
1354 .beacon_blink = qla24xx_beacon_blink,
1355 .read_optrom = qla24xx_read_optrom_data,
1356 .write_optrom = qla24xx_write_optrom_data,
1357 .get_flash_version = qla24xx_get_flash_version,
1358 };
1359
1360 static struct isp_operations qla25xx_isp_ops = {
1361 .pci_config = qla25xx_pci_config,
1362 .reset_chip = qla24xx_reset_chip,
1363 .chip_diag = qla24xx_chip_diag,
1364 .config_rings = qla24xx_config_rings,
1365 .reset_adapter = qla24xx_reset_adapter,
1366 .nvram_config = qla24xx_nvram_config,
1367 .update_fw_options = qla24xx_update_fw_options,
1368 .load_risc = qla24xx_load_risc,
1369 .pci_info_str = qla24xx_pci_info_str,
1370 .fw_version_str = qla24xx_fw_version_str,
1371 .intr_handler = qla24xx_intr_handler,
1372 .enable_intrs = qla24xx_enable_intrs,
1373 .disable_intrs = qla24xx_disable_intrs,
1374 .abort_command = qla24xx_abort_command,
1375 .abort_target = qla24xx_abort_target,
1376 .fabric_login = qla24xx_login_fabric,
1377 .fabric_logout = qla24xx_fabric_logout,
1378 .calc_req_entries = NULL,
1379 .build_iocbs = NULL,
1380 .prep_ms_iocb = qla24xx_prep_ms_iocb,
1381 .prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb,
1382 .read_nvram = qla25xx_read_nvram_data,
1383 .write_nvram = qla25xx_write_nvram_data,
1384 .fw_dump = qla25xx_fw_dump,
1385 .beacon_on = qla24xx_beacon_on,
1386 .beacon_off = qla24xx_beacon_off,
1387 .beacon_blink = qla24xx_beacon_blink,
1388 .read_optrom = qla25xx_read_optrom_data,
1389 .write_optrom = qla24xx_write_optrom_data,
1390 .get_flash_version = qla24xx_get_flash_version,
1391 };
1392
1393 static inline void
1394 qla2x00_set_isp_flags(scsi_qla_host_t *ha)
1395 {
1396 ha->device_type = DT_EXTENDED_IDS;
1397 switch (ha->pdev->device) {
1398 case PCI_DEVICE_ID_QLOGIC_ISP2100:
1399 ha->device_type |= DT_ISP2100;
1400 ha->device_type &= ~DT_EXTENDED_IDS;
1401 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1402 break;
1403 case PCI_DEVICE_ID_QLOGIC_ISP2200:
1404 ha->device_type |= DT_ISP2200;
1405 ha->device_type &= ~DT_EXTENDED_IDS;
1406 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1407 break;
1408 case PCI_DEVICE_ID_QLOGIC_ISP2300:
1409 ha->device_type |= DT_ISP2300;
1410 ha->device_type |= DT_ZIO_SUPPORTED;
1411 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1412 break;
1413 case PCI_DEVICE_ID_QLOGIC_ISP2312:
1414 ha->device_type |= DT_ISP2312;
1415 ha->device_type |= DT_ZIO_SUPPORTED;
1416 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1417 break;
1418 case PCI_DEVICE_ID_QLOGIC_ISP2322:
1419 ha->device_type |= DT_ISP2322;
1420 ha->device_type |= DT_ZIO_SUPPORTED;
1421 if (ha->pdev->subsystem_vendor == 0x1028 &&
1422 ha->pdev->subsystem_device == 0x0170)
1423 ha->device_type |= DT_OEM_001;
1424 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1425 break;
1426 case PCI_DEVICE_ID_QLOGIC_ISP6312:
1427 ha->device_type |= DT_ISP6312;
1428 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1429 break;
1430 case PCI_DEVICE_ID_QLOGIC_ISP6322:
1431 ha->device_type |= DT_ISP6322;
1432 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1433 break;
1434 case PCI_DEVICE_ID_QLOGIC_ISP2422:
1435 ha->device_type |= DT_ISP2422;
1436 ha->device_type |= DT_ZIO_SUPPORTED;
1437 ha->device_type |= DT_FWI2;
1438 ha->device_type |= DT_IIDMA;
1439 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1440 break;
1441 case PCI_DEVICE_ID_QLOGIC_ISP2432:
1442 ha->device_type |= DT_ISP2432;
1443 ha->device_type |= DT_ZIO_SUPPORTED;
1444 ha->device_type |= DT_FWI2;
1445 ha->device_type |= DT_IIDMA;
1446 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1447 break;
1448 case PCI_DEVICE_ID_QLOGIC_ISP5422:
1449 ha->device_type |= DT_ISP5422;
1450 ha->device_type |= DT_FWI2;
1451 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1452 break;
1453 case PCI_DEVICE_ID_QLOGIC_ISP5432:
1454 ha->device_type |= DT_ISP5432;
1455 ha->device_type |= DT_FWI2;
1456 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1457 break;
1458 case PCI_DEVICE_ID_QLOGIC_ISP2532:
1459 ha->device_type |= DT_ISP2532;
1460 ha->device_type |= DT_ZIO_SUPPORTED;
1461 ha->device_type |= DT_FWI2;
1462 ha->device_type |= DT_IIDMA;
1463 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1464 break;
1465 }
1466 }
1467
1468 static int
1469 qla2x00_iospace_config(scsi_qla_host_t *ha)
1470 {
1471 resource_size_t pio;
1472
1473 if (pci_request_selected_regions(ha->pdev, ha->bars,
1474 QLA2XXX_DRIVER_NAME)) {
1475 qla_printk(KERN_WARNING, ha,
1476 "Failed to reserve PIO/MMIO regions (%s)\n",
1477 pci_name(ha->pdev));
1478
1479 goto iospace_error_exit;
1480 }
1481 if (!(ha->bars & 1))
1482 goto skip_pio;
1483
1484 /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1485 pio = pci_resource_start(ha->pdev, 0);
1486 if (pci_resource_flags(ha->pdev, 0) & IORESOURCE_IO) {
1487 if (pci_resource_len(ha->pdev, 0) < MIN_IOBASE_LEN) {
1488 qla_printk(KERN_WARNING, ha,
1489 "Invalid PCI I/O region size (%s)...\n",
1490 pci_name(ha->pdev));
1491 pio = 0;
1492 }
1493 } else {
1494 qla_printk(KERN_WARNING, ha,
1495 "region #0 not a PIO resource (%s)...\n",
1496 pci_name(ha->pdev));
1497 pio = 0;
1498 }
1499 ha->pio_address = pio;
1500
1501 skip_pio:
1502 /* Use MMIO operations for all accesses. */
1503 if (!(pci_resource_flags(ha->pdev, 1) & IORESOURCE_MEM)) {
1504 qla_printk(KERN_ERR, ha,
1505 "region #1 not an MMIO resource (%s), aborting\n",
1506 pci_name(ha->pdev));
1507 goto iospace_error_exit;
1508 }
1509 if (pci_resource_len(ha->pdev, 1) < MIN_IOBASE_LEN) {
1510 qla_printk(KERN_ERR, ha,
1511 "Invalid PCI mem region size (%s), aborting\n",
1512 pci_name(ha->pdev));
1513 goto iospace_error_exit;
1514 }
1515
1516 ha->iobase = ioremap(pci_resource_start(ha->pdev, 1), MIN_IOBASE_LEN);
1517 if (!ha->iobase) {
1518 qla_printk(KERN_ERR, ha,
1519 "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
1520
1521 goto iospace_error_exit;
1522 }
1523
1524 return (0);
1525
1526 iospace_error_exit:
1527 return (-ENOMEM);
1528 }
1529
1530 static void
1531 qla2xxx_scan_start(struct Scsi_Host *shost)
1532 {
1533 scsi_qla_host_t *ha = shost_priv(shost);
1534
1535 set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
1536 set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
1537 set_bit(RSCN_UPDATE, &ha->dpc_flags);
1538 }
1539
1540 static int
1541 qla2xxx_scan_finished(struct Scsi_Host *shost, unsigned long time)
1542 {
1543 scsi_qla_host_t *ha = shost_priv(shost);
1544
1545 if (!ha->host)
1546 return 1;
1547 if (time > ha->loop_reset_delay * HZ)
1548 return 1;
1549
1550 return atomic_read(&ha->loop_state) == LOOP_READY;
1551 }
1552
1553 /*
1554 * PCI driver interface
1555 */
1556 static int __devinit
1557 qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
1558 {
1559 int ret = -ENODEV;
1560 device_reg_t __iomem *reg;
1561 struct Scsi_Host *host;
1562 scsi_qla_host_t *ha;
1563 unsigned long flags = 0;
1564 char pci_info[30];
1565 char fw_str[30];
1566 struct scsi_host_template *sht;
1567 int bars;
1568
1569 bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO);
1570 sht = &qla2x00_driver_template;
1571 if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
1572 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432 ||
1573 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5422 ||
1574 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5432 ||
1575 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2532) {
1576 bars = pci_select_bars(pdev, IORESOURCE_MEM);
1577 sht = &qla24xx_driver_template;
1578 }
1579
1580 if (pci_enable_device_bars(pdev, bars))
1581 goto probe_out;
1582
1583 if (pci_find_aer_capability(pdev))
1584 if (pci_enable_pcie_error_reporting(pdev))
1585 goto probe_out;
1586
1587 host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
1588 if (host == NULL) {
1589 printk(KERN_WARNING
1590 "qla2xxx: Couldn't allocate host from scsi layer!\n");
1591 goto probe_disable_device;
1592 }
1593
1594 /* Clear our data area */
1595 ha = shost_priv(host);
1596 memset(ha, 0, sizeof(scsi_qla_host_t));
1597
1598 ha->pdev = pdev;
1599 ha->host = host;
1600 ha->host_no = host->host_no;
1601 sprintf(ha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, ha->host_no);
1602 ha->parent = NULL;
1603 ha->bars = bars;
1604
1605 /* Set ISP-type information. */
1606 qla2x00_set_isp_flags(ha);
1607
1608 /* Configure PCI I/O space */
1609 ret = qla2x00_iospace_config(ha);
1610 if (ret)
1611 goto probe_failed;
1612
1613 qla_printk(KERN_INFO, ha,
1614 "Found an ISP%04X, irq %d, iobase 0x%p\n", pdev->device, pdev->irq,
1615 ha->iobase);
1616
1617 spin_lock_init(&ha->hardware_lock);
1618
1619 ha->prev_topology = 0;
1620 ha->init_cb_size = sizeof(init_cb_t);
1621 ha->mgmt_svr_loop_id = MANAGEMENT_SERVER + ha->vp_idx;
1622 ha->link_data_rate = PORT_SPEED_UNKNOWN;
1623 ha->optrom_size = OPTROM_SIZE_2300;
1624
1625 ha->max_q_depth = MAX_Q_DEPTH;
1626 if (ql2xmaxqdepth != 0 && ql2xmaxqdepth <= 0xffffU)
1627 ha->max_q_depth = ql2xmaxqdepth;
1628
1629 /* Assign ISP specific operations. */
1630 if (IS_QLA2100(ha)) {
1631 host->max_id = MAX_TARGETS_2100;
1632 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
1633 ha->request_q_length = REQUEST_ENTRY_CNT_2100;
1634 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1635 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1636 host->sg_tablesize = 32;
1637 ha->gid_list_info_size = 4;
1638 ha->isp_ops = &qla2100_isp_ops;
1639 } else if (IS_QLA2200(ha)) {
1640 host->max_id = MAX_TARGETS_2200;
1641 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1642 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1643 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1644 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1645 ha->gid_list_info_size = 4;
1646 ha->isp_ops = &qla2100_isp_ops;
1647 } else if (IS_QLA23XX(ha)) {
1648 host->max_id = MAX_TARGETS_2200;
1649 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1650 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1651 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1652 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1653 ha->gid_list_info_size = 6;
1654 if (IS_QLA2322(ha) || IS_QLA6322(ha))
1655 ha->optrom_size = OPTROM_SIZE_2322;
1656 ha->isp_ops = &qla2300_isp_ops;
1657 } else if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
1658 host->max_id = MAX_TARGETS_2200;
1659 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1660 ha->request_q_length = REQUEST_ENTRY_CNT_24XX;
1661 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1662 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1663 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
1664 ha->mgmt_svr_loop_id = 10 + ha->vp_idx;
1665 ha->gid_list_info_size = 8;
1666 ha->optrom_size = OPTROM_SIZE_24XX;
1667 ha->isp_ops = &qla24xx_isp_ops;
1668 } else if (IS_QLA25XX(ha)) {
1669 host->max_id = MAX_TARGETS_2200;
1670 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1671 ha->request_q_length = REQUEST_ENTRY_CNT_24XX;
1672 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1673 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1674 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
1675 ha->mgmt_svr_loop_id = 10 + ha->vp_idx;
1676 ha->gid_list_info_size = 8;
1677 ha->optrom_size = OPTROM_SIZE_25XX;
1678 ha->isp_ops = &qla25xx_isp_ops;
1679 }
1680 host->can_queue = ha->request_q_length + 128;
1681
1682 /* load the F/W, read paramaters, and init the H/W */
1683 ha->instance = num_hosts;
1684
1685 init_MUTEX(&ha->vport_sem);
1686 init_completion(&ha->mbx_cmd_comp);
1687 complete(&ha->mbx_cmd_comp);
1688 init_completion(&ha->mbx_intr_comp);
1689
1690 INIT_LIST_HEAD(&ha->list);
1691 INIT_LIST_HEAD(&ha->fcports);
1692 INIT_LIST_HEAD(&ha->vp_list);
1693
1694 set_bit(0, (unsigned long *) ha->vp_idx_map);
1695
1696 qla2x00_config_dma_addressing(ha);
1697 if (qla2x00_mem_alloc(ha)) {
1698 qla_printk(KERN_WARNING, ha,
1699 "[ERROR] Failed to allocate memory for adapter\n");
1700
1701 ret = -ENOMEM;
1702 goto probe_failed;
1703 }
1704
1705 if (qla2x00_initialize_adapter(ha)) {
1706 qla_printk(KERN_WARNING, ha,
1707 "Failed to initialize adapter\n");
1708
1709 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
1710 "Adapter flags %x.\n",
1711 ha->host_no, ha->device_flags));
1712
1713 ret = -ENODEV;
1714 goto probe_failed;
1715 }
1716
1717 /*
1718 * Startup the kernel thread for this host adapter
1719 */
1720 ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
1721 "%s_dpc", ha->host_str);
1722 if (IS_ERR(ha->dpc_thread)) {
1723 qla_printk(KERN_WARNING, ha,
1724 "Unable to start DPC thread!\n");
1725 ret = PTR_ERR(ha->dpc_thread);
1726 goto probe_failed;
1727 }
1728
1729 host->this_id = 255;
1730 host->cmd_per_lun = 3;
1731 host->unique_id = ha->instance;
1732 host->max_cmd_len = MAX_CMDSZ;
1733 host->max_channel = MAX_BUSES - 1;
1734 host->max_lun = MAX_LUNS;
1735 host->transportt = qla2xxx_transport_template;
1736
1737 ret = qla2x00_request_irqs(ha);
1738 if (ret)
1739 goto probe_failed;
1740
1741 /* Initialized the timer */
1742 qla2x00_start_timer(ha, qla2x00_timer, WATCH_INTERVAL);
1743
1744 DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
1745 ha->host_no, ha));
1746
1747 ha->isp_ops->disable_intrs(ha);
1748
1749 spin_lock_irqsave(&ha->hardware_lock, flags);
1750 reg = ha->iobase;
1751 if (IS_FWI2_CAPABLE(ha)) {
1752 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_HOST_INT);
1753 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_RISC_INT);
1754 } else {
1755 WRT_REG_WORD(&reg->isp.semaphore, 0);
1756 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_RISC_INT);
1757 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_HOST_INT);
1758
1759 /* Enable proper parity */
1760 if (!IS_QLA2100(ha) && !IS_QLA2200(ha)) {
1761 if (IS_QLA2300(ha))
1762 /* SRAM parity */
1763 WRT_REG_WORD(&reg->isp.hccr,
1764 (HCCR_ENABLE_PARITY + 0x1));
1765 else
1766 /* SRAM, Instruction RAM and GP RAM parity */
1767 WRT_REG_WORD(&reg->isp.hccr,
1768 (HCCR_ENABLE_PARITY + 0x7));
1769 }
1770 }
1771 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1772
1773 ha->isp_ops->enable_intrs(ha);
1774
1775 pci_set_drvdata(pdev, ha);
1776
1777 ha->flags.init_done = 1;
1778 ha->flags.online = 1;
1779
1780 num_hosts++;
1781
1782 ret = scsi_add_host(host, &pdev->dev);
1783 if (ret)
1784 goto probe_failed;
1785
1786 scsi_scan_host(host);
1787
1788 qla2x00_alloc_sysfs_attr(ha);
1789
1790 qla2x00_init_host_attr(ha);
1791
1792 qla2x00_dfs_setup(ha);
1793
1794 qla_printk(KERN_INFO, ha, "\n"
1795 " QLogic Fibre Channel HBA Driver: %s\n"
1796 " QLogic %s - %s\n"
1797 " ISP%04X: %s @ %s hdma%c, host#=%ld, fw=%s\n",
1798 qla2x00_version_str, ha->model_number,
1799 ha->model_desc ? ha->model_desc: "", pdev->device,
1800 ha->isp_ops->pci_info_str(ha, pci_info), pci_name(pdev),
1801 ha->flags.enable_64bit_addressing ? '+': '-', ha->host_no,
1802 ha->isp_ops->fw_version_str(ha, fw_str));
1803
1804 return 0;
1805
1806 probe_failed:
1807 qla2x00_free_device(ha);
1808
1809 scsi_host_put(host);
1810
1811 probe_disable_device:
1812 pci_disable_device(pdev);
1813
1814 probe_out:
1815 return ret;
1816 }
1817
1818 static void
1819 qla2x00_remove_one(struct pci_dev *pdev)
1820 {
1821 scsi_qla_host_t *ha;
1822
1823 ha = pci_get_drvdata(pdev);
1824
1825 qla2x00_dfs_remove(ha);
1826
1827 qla2x00_free_sysfs_attr(ha);
1828
1829 fc_remove_host(ha->host);
1830
1831 scsi_remove_host(ha->host);
1832
1833 qla2x00_free_device(ha);
1834
1835 scsi_host_put(ha->host);
1836
1837 pci_disable_device(pdev);
1838 pci_set_drvdata(pdev, NULL);
1839 }
1840
1841 static void
1842 qla2x00_free_device(scsi_qla_host_t *ha)
1843 {
1844 /* Disable timer */
1845 if (ha->timer_active)
1846 qla2x00_stop_timer(ha);
1847
1848 /* Kill the kernel thread for this host */
1849 if (ha->dpc_thread) {
1850 struct task_struct *t = ha->dpc_thread;
1851
1852 /*
1853 * qla2xxx_wake_dpc checks for ->dpc_thread
1854 * so we need to zero it out.
1855 */
1856 ha->dpc_thread = NULL;
1857 kthread_stop(t);
1858 }
1859
1860 if (ha->flags.fce_enabled)
1861 qla2x00_disable_fce_trace(ha, NULL, NULL);
1862
1863 if (ha->eft)
1864 qla2x00_disable_eft_trace(ha);
1865
1866 ha->flags.online = 0;
1867
1868 /* Stop currently executing firmware. */
1869 qla2x00_try_to_stop_firmware(ha);
1870
1871 /* turn-off interrupts on the card */
1872 if (ha->interrupts_on)
1873 ha->isp_ops->disable_intrs(ha);
1874
1875 qla2x00_mem_free(ha);
1876
1877 qla2x00_free_irqs(ha);
1878
1879 /* release io space registers */
1880 if (ha->iobase)
1881 iounmap(ha->iobase);
1882 pci_release_selected_regions(ha->pdev, ha->bars);
1883 }
1884
1885 static inline void
1886 qla2x00_schedule_rport_del(struct scsi_qla_host *ha, fc_port_t *fcport,
1887 int defer)
1888 {
1889 unsigned long flags;
1890 struct fc_rport *rport;
1891
1892 if (!fcport->rport)
1893 return;
1894
1895 rport = fcport->rport;
1896 if (defer) {
1897 spin_lock_irqsave(&fcport->rport_lock, flags);
1898 fcport->drport = rport;
1899 fcport->rport = NULL;
1900 *(fc_port_t **)rport->dd_data = NULL;
1901 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1902 set_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags);
1903 } else {
1904 spin_lock_irqsave(&fcport->rport_lock, flags);
1905 fcport->rport = NULL;
1906 *(fc_port_t **)rport->dd_data = NULL;
1907 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1908 fc_remote_port_delete(rport);
1909 }
1910 }
1911
1912 /*
1913 * qla2x00_mark_device_lost Updates fcport state when device goes offline.
1914 *
1915 * Input: ha = adapter block pointer. fcport = port structure pointer.
1916 *
1917 * Return: None.
1918 *
1919 * Context:
1920 */
1921 void qla2x00_mark_device_lost(scsi_qla_host_t *ha, fc_port_t *fcport,
1922 int do_login, int defer)
1923 {
1924 if (atomic_read(&fcport->state) == FCS_ONLINE &&
1925 ha->vp_idx == fcport->vp_idx)
1926 qla2x00_schedule_rport_del(ha, fcport, defer);
1927
1928 /*
1929 * We may need to retry the login, so don't change the state of the
1930 * port but do the retries.
1931 */
1932 if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
1933 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1934
1935 if (!do_login)
1936 return;
1937
1938 if (fcport->login_retry == 0) {
1939 fcport->login_retry = ha->login_retry_count;
1940 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
1941
1942 DEBUG(printk("scsi(%ld): Port login retry: "
1943 "%02x%02x%02x%02x%02x%02x%02x%02x, "
1944 "id = 0x%04x retry cnt=%d\n",
1945 ha->host_no,
1946 fcport->port_name[0],
1947 fcport->port_name[1],
1948 fcport->port_name[2],
1949 fcport->port_name[3],
1950 fcport->port_name[4],
1951 fcport->port_name[5],
1952 fcport->port_name[6],
1953 fcport->port_name[7],
1954 fcport->loop_id,
1955 fcport->login_retry));
1956 }
1957 }
1958
1959 /*
1960 * qla2x00_mark_all_devices_lost
1961 * Updates fcport state when device goes offline.
1962 *
1963 * Input:
1964 * ha = adapter block pointer.
1965 * fcport = port structure pointer.
1966 *
1967 * Return:
1968 * None.
1969 *
1970 * Context:
1971 */
1972 void
1973 qla2x00_mark_all_devices_lost(scsi_qla_host_t *ha, int defer)
1974 {
1975 fc_port_t *fcport;
1976 scsi_qla_host_t *pha = to_qla_parent(ha);
1977
1978 list_for_each_entry(fcport, &pha->fcports, list) {
1979 if (ha->vp_idx != 0 && ha->vp_idx != fcport->vp_idx)
1980 continue;
1981 /*
1982 * No point in marking the device as lost, if the device is
1983 * already DEAD.
1984 */
1985 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
1986 continue;
1987 if (atomic_read(&fcport->state) == FCS_ONLINE) {
1988 if (defer)
1989 qla2x00_schedule_rport_del(ha, fcport, defer);
1990 else if (ha->vp_idx == fcport->vp_idx)
1991 qla2x00_schedule_rport_del(ha, fcport, defer);
1992 }
1993 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1994 }
1995
1996 if (defer)
1997 qla2xxx_wake_dpc(ha);
1998 }
1999
2000 /*
2001 * qla2x00_mem_alloc
2002 * Allocates adapter memory.
2003 *
2004 * Returns:
2005 * 0 = success.
2006 * 1 = failure.
2007 */
2008 static uint8_t
2009 qla2x00_mem_alloc(scsi_qla_host_t *ha)
2010 {
2011 char name[16];
2012 uint8_t status = 1;
2013 int retry= 10;
2014
2015 do {
2016 /*
2017 * This will loop only once if everything goes well, else some
2018 * number of retries will be performed to get around a kernel
2019 * bug where available mem is not allocated until after a
2020 * little delay and a retry.
2021 */
2022 ha->request_ring = dma_alloc_coherent(&ha->pdev->dev,
2023 (ha->request_q_length + 1) * sizeof(request_t),
2024 &ha->request_dma, GFP_KERNEL);
2025 if (ha->request_ring == NULL) {
2026 qla_printk(KERN_WARNING, ha,
2027 "Memory Allocation failed - request_ring\n");
2028
2029 qla2x00_mem_free(ha);
2030 msleep(100);
2031
2032 continue;
2033 }
2034
2035 ha->response_ring = dma_alloc_coherent(&ha->pdev->dev,
2036 (ha->response_q_length + 1) * sizeof(response_t),
2037 &ha->response_dma, GFP_KERNEL);
2038 if (ha->response_ring == NULL) {
2039 qla_printk(KERN_WARNING, ha,
2040 "Memory Allocation failed - response_ring\n");
2041
2042 qla2x00_mem_free(ha);
2043 msleep(100);
2044
2045 continue;
2046 }
2047
2048 ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
2049 &ha->gid_list_dma, GFP_KERNEL);
2050 if (ha->gid_list == NULL) {
2051 qla_printk(KERN_WARNING, ha,
2052 "Memory Allocation failed - gid_list\n");
2053
2054 qla2x00_mem_free(ha);
2055 msleep(100);
2056
2057 continue;
2058 }
2059
2060 /* get consistent memory allocated for init control block */
2061 ha->init_cb = dma_alloc_coherent(&ha->pdev->dev,
2062 ha->init_cb_size, &ha->init_cb_dma, GFP_KERNEL);
2063 if (ha->init_cb == NULL) {
2064 qla_printk(KERN_WARNING, ha,
2065 "Memory Allocation failed - init_cb\n");
2066
2067 qla2x00_mem_free(ha);
2068 msleep(100);
2069
2070 continue;
2071 }
2072 memset(ha->init_cb, 0, ha->init_cb_size);
2073
2074 snprintf(name, sizeof(name), "%s_%ld", QLA2XXX_DRIVER_NAME,
2075 ha->host_no);
2076 ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
2077 DMA_POOL_SIZE, 8, 0);
2078 if (ha->s_dma_pool == NULL) {
2079 qla_printk(KERN_WARNING, ha,
2080 "Memory Allocation failed - s_dma_pool\n");
2081
2082 qla2x00_mem_free(ha);
2083 msleep(100);
2084
2085 continue;
2086 }
2087
2088 if (qla2x00_allocate_sp_pool(ha)) {
2089 qla_printk(KERN_WARNING, ha,
2090 "Memory Allocation failed - "
2091 "qla2x00_allocate_sp_pool()\n");
2092
2093 qla2x00_mem_free(ha);
2094 msleep(100);
2095
2096 continue;
2097 }
2098
2099 /* Allocate memory for SNS commands */
2100 if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
2101 /* Get consistent memory allocated for SNS commands */
2102 ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
2103 sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma,
2104 GFP_KERNEL);
2105 if (ha->sns_cmd == NULL) {
2106 /* error */
2107 qla_printk(KERN_WARNING, ha,
2108 "Memory Allocation failed - sns_cmd\n");
2109
2110 qla2x00_mem_free(ha);
2111 msleep(100);
2112
2113 continue;
2114 }
2115 memset(ha->sns_cmd, 0, sizeof(struct sns_cmd_pkt));
2116 } else {
2117 /* Get consistent memory allocated for MS IOCB */
2118 ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2119 &ha->ms_iocb_dma);
2120 if (ha->ms_iocb == NULL) {
2121 /* error */
2122 qla_printk(KERN_WARNING, ha,
2123 "Memory Allocation failed - ms_iocb\n");
2124
2125 qla2x00_mem_free(ha);
2126 msleep(100);
2127
2128 continue;
2129 }
2130 memset(ha->ms_iocb, 0, sizeof(ms_iocb_entry_t));
2131
2132 /*
2133 * Get consistent memory allocated for CT SNS
2134 * commands
2135 */
2136 ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
2137 sizeof(struct ct_sns_pkt), &ha->ct_sns_dma,
2138 GFP_KERNEL);
2139 if (ha->ct_sns == NULL) {
2140 /* error */
2141 qla_printk(KERN_WARNING, ha,
2142 "Memory Allocation failed - ct_sns\n");
2143
2144 qla2x00_mem_free(ha);
2145 msleep(100);
2146
2147 continue;
2148 }
2149 memset(ha->ct_sns, 0, sizeof(struct ct_sns_pkt));
2150
2151 if (IS_FWI2_CAPABLE(ha)) {
2152 /*
2153 * Get consistent memory allocated for SFP
2154 * block.
2155 */
2156 ha->sfp_data = dma_pool_alloc(ha->s_dma_pool,
2157 GFP_KERNEL, &ha->sfp_data_dma);
2158 if (ha->sfp_data == NULL) {
2159 qla_printk(KERN_WARNING, ha,
2160 "Memory Allocation failed - "
2161 "sfp_data\n");
2162
2163 qla2x00_mem_free(ha);
2164 msleep(100);
2165
2166 continue;
2167 }
2168 memset(ha->sfp_data, 0, SFP_BLOCK_SIZE);
2169 }
2170 }
2171
2172 /* Get memory for cached NVRAM */
2173 ha->nvram = kzalloc(MAX_NVRAM_SIZE, GFP_KERNEL);
2174 if (ha->nvram == NULL) {
2175 /* error */
2176 qla_printk(KERN_WARNING, ha,
2177 "Memory Allocation failed - nvram cache\n");
2178
2179 qla2x00_mem_free(ha);
2180 msleep(100);
2181
2182 continue;
2183 }
2184
2185 /* Done all allocations without any error. */
2186 status = 0;
2187
2188 } while (retry-- && status != 0);
2189
2190 if (status) {
2191 printk(KERN_WARNING
2192 "%s(): **** FAILED ****\n", __func__);
2193 }
2194
2195 return(status);
2196 }
2197
2198 /*
2199 * qla2x00_mem_free
2200 * Frees all adapter allocated memory.
2201 *
2202 * Input:
2203 * ha = adapter block pointer.
2204 */
2205 static void
2206 qla2x00_mem_free(scsi_qla_host_t *ha)
2207 {
2208 struct list_head *fcpl, *fcptemp;
2209 fc_port_t *fcport;
2210
2211 if (ha == NULL) {
2212 /* error */
2213 DEBUG2(printk("%s(): ERROR invalid ha pointer.\n", __func__));
2214 return;
2215 }
2216
2217 /* free sp pool */
2218 qla2x00_free_sp_pool(ha);
2219
2220 if (ha->fce)
2221 dma_free_coherent(&ha->pdev->dev, FCE_SIZE, ha->fce,
2222 ha->fce_dma);
2223
2224 if (ha->fw_dump) {
2225 if (ha->eft)
2226 dma_free_coherent(&ha->pdev->dev,
2227 ntohl(ha->fw_dump->eft_size), ha->eft, ha->eft_dma);
2228 vfree(ha->fw_dump);
2229 }
2230
2231 if (ha->sns_cmd)
2232 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
2233 ha->sns_cmd, ha->sns_cmd_dma);
2234
2235 if (ha->ct_sns)
2236 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2237 ha->ct_sns, ha->ct_sns_dma);
2238
2239 if (ha->sfp_data)
2240 dma_pool_free(ha->s_dma_pool, ha->sfp_data, ha->sfp_data_dma);
2241
2242 if (ha->ms_iocb)
2243 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2244
2245 if (ha->s_dma_pool)
2246 dma_pool_destroy(ha->s_dma_pool);
2247
2248 if (ha->init_cb)
2249 dma_free_coherent(&ha->pdev->dev, ha->init_cb_size,
2250 ha->init_cb, ha->init_cb_dma);
2251
2252 if (ha->gid_list)
2253 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2254 ha->gid_list_dma);
2255
2256 if (ha->response_ring)
2257 dma_free_coherent(&ha->pdev->dev,
2258 (ha->response_q_length + 1) * sizeof(response_t),
2259 ha->response_ring, ha->response_dma);
2260
2261 if (ha->request_ring)
2262 dma_free_coherent(&ha->pdev->dev,
2263 (ha->request_q_length + 1) * sizeof(request_t),
2264 ha->request_ring, ha->request_dma);
2265
2266 ha->eft = NULL;
2267 ha->eft_dma = 0;
2268 ha->sns_cmd = NULL;
2269 ha->sns_cmd_dma = 0;
2270 ha->ct_sns = NULL;
2271 ha->ct_sns_dma = 0;
2272 ha->ms_iocb = NULL;
2273 ha->ms_iocb_dma = 0;
2274 ha->init_cb = NULL;
2275 ha->init_cb_dma = 0;
2276
2277 ha->s_dma_pool = NULL;
2278
2279 ha->gid_list = NULL;
2280 ha->gid_list_dma = 0;
2281
2282 ha->response_ring = NULL;
2283 ha->response_dma = 0;
2284 ha->request_ring = NULL;
2285 ha->request_dma = 0;
2286
2287 list_for_each_safe(fcpl, fcptemp, &ha->fcports) {
2288 fcport = list_entry(fcpl, fc_port_t, list);
2289
2290 /* fc ports */
2291 list_del_init(&fcport->list);
2292 kfree(fcport);
2293 }
2294 INIT_LIST_HEAD(&ha->fcports);
2295
2296 ha->fw_dump = NULL;
2297 ha->fw_dumped = 0;
2298 ha->fw_dump_reading = 0;
2299
2300 vfree(ha->optrom_buffer);
2301 kfree(ha->nvram);
2302 }
2303
2304 /*
2305 * qla2x00_allocate_sp_pool
2306 * This routine is called during initialization to allocate
2307 * memory for local srb_t.
2308 *
2309 * Input:
2310 * ha = adapter block pointer.
2311 *
2312 * Context:
2313 * Kernel context.
2314 */
2315 static int
2316 qla2x00_allocate_sp_pool(scsi_qla_host_t *ha)
2317 {
2318 int rval;
2319
2320 rval = QLA_SUCCESS;
2321 ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
2322 if (ha->srb_mempool == NULL) {
2323 qla_printk(KERN_INFO, ha, "Unable to allocate SRB mempool.\n");
2324 rval = QLA_FUNCTION_FAILED;
2325 }
2326 return (rval);
2327 }
2328
2329 /*
2330 * This routine frees all adapter allocated memory.
2331 *
2332 */
2333 static void
2334 qla2x00_free_sp_pool( scsi_qla_host_t *ha)
2335 {
2336 if (ha->srb_mempool) {
2337 mempool_destroy(ha->srb_mempool);
2338 ha->srb_mempool = NULL;
2339 }
2340 }
2341
2342 /**************************************************************************
2343 * qla2x00_do_dpc
2344 * This kernel thread is a task that is schedule by the interrupt handler
2345 * to perform the background processing for interrupts.
2346 *
2347 * Notes:
2348 * This task always run in the context of a kernel thread. It
2349 * is kick-off by the driver's detect code and starts up
2350 * up one per adapter. It immediately goes to sleep and waits for
2351 * some fibre event. When either the interrupt handler or
2352 * the timer routine detects a event it will one of the task
2353 * bits then wake us up.
2354 **************************************************************************/
2355 static int
2356 qla2x00_do_dpc(void *data)
2357 {
2358 int rval;
2359 scsi_qla_host_t *ha;
2360 fc_port_t *fcport;
2361 uint8_t status;
2362 uint16_t next_loopid;
2363
2364 ha = (scsi_qla_host_t *)data;
2365
2366 set_user_nice(current, -20);
2367
2368 while (!kthread_should_stop()) {
2369 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
2370
2371 set_current_state(TASK_INTERRUPTIBLE);
2372 schedule();
2373 __set_current_state(TASK_RUNNING);
2374
2375 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
2376
2377 /* Initialization not yet finished. Don't do anything yet. */
2378 if (!ha->flags.init_done)
2379 continue;
2380
2381 DEBUG3(printk("scsi(%ld): DPC handler\n", ha->host_no));
2382
2383 ha->dpc_active = 1;
2384
2385 if (ha->flags.mbox_busy) {
2386 ha->dpc_active = 0;
2387 continue;
2388 }
2389
2390 if (test_and_clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) {
2391
2392 DEBUG(printk("scsi(%ld): dpc: sched "
2393 "qla2x00_abort_isp ha = %p\n",
2394 ha->host_no, ha));
2395 if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
2396 &ha->dpc_flags))) {
2397
2398 if (qla2x00_abort_isp(ha)) {
2399 /* failed. retry later */
2400 set_bit(ISP_ABORT_NEEDED,
2401 &ha->dpc_flags);
2402 }
2403 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2404 }
2405 DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
2406 ha->host_no));
2407 }
2408
2409 if (test_and_clear_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags))
2410 qla2x00_update_fcports(ha);
2411
2412 if (test_and_clear_bit(LOOP_RESET_NEEDED, &ha->dpc_flags)) {
2413 DEBUG(printk("scsi(%ld): dpc: sched loop_reset()\n",
2414 ha->host_no));
2415 qla2x00_loop_reset(ha);
2416 }
2417
2418 if (test_and_clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) &&
2419 (!(test_and_set_bit(RESET_ACTIVE, &ha->dpc_flags)))) {
2420
2421 DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
2422 ha->host_no));
2423
2424 qla2x00_rst_aen(ha);
2425 clear_bit(RESET_ACTIVE, &ha->dpc_flags);
2426 }
2427
2428 /* Retry each device up to login retry count */
2429 if ((test_and_clear_bit(RELOGIN_NEEDED, &ha->dpc_flags)) &&
2430 !test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) &&
2431 atomic_read(&ha->loop_state) != LOOP_DOWN) {
2432
2433 DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
2434 ha->host_no));
2435
2436 next_loopid = 0;
2437 list_for_each_entry(fcport, &ha->fcports, list) {
2438 /*
2439 * If the port is not ONLINE then try to login
2440 * to it if we haven't run out of retries.
2441 */
2442 if (atomic_read(&fcport->state) != FCS_ONLINE &&
2443 fcport->login_retry) {
2444
2445 if (fcport->flags & FCF_FABRIC_DEVICE) {
2446 if (fcport->flags &
2447 FCF_TAPE_PRESENT)
2448 ha->isp_ops->fabric_logout(
2449 ha, fcport->loop_id,
2450 fcport->d_id.b.domain,
2451 fcport->d_id.b.area,
2452 fcport->d_id.b.al_pa);
2453 status = qla2x00_fabric_login(
2454 ha, fcport, &next_loopid);
2455 } else
2456 status =
2457 qla2x00_local_device_login(
2458 ha, fcport);
2459
2460 fcport->login_retry--;
2461 if (status == QLA_SUCCESS) {
2462 fcport->old_loop_id = fcport->loop_id;
2463
2464 DEBUG(printk("scsi(%ld): port login OK: logged in ID 0x%x\n",
2465 ha->host_no, fcport->loop_id));
2466
2467 qla2x00_update_fcport(ha,
2468 fcport);
2469 } else if (status == 1) {
2470 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
2471 /* retry the login again */
2472 DEBUG(printk("scsi(%ld): Retrying %d login again loop_id 0x%x\n",
2473 ha->host_no,
2474 fcport->login_retry, fcport->loop_id));
2475 } else {
2476 fcport->login_retry = 0;
2477 }
2478 if (fcport->login_retry == 0)
2479 fcport->loop_id = FC_NO_LOOP_ID;
2480 }
2481 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2482 break;
2483 }
2484 DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
2485 ha->host_no));
2486 }
2487
2488 if ((test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags)) &&
2489 atomic_read(&ha->loop_state) != LOOP_DOWN) {
2490
2491 clear_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags);
2492 DEBUG(printk("scsi(%ld): qla2x00_login_retry()\n",
2493 ha->host_no));
2494
2495 set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
2496
2497 DEBUG(printk("scsi(%ld): qla2x00_login_retry - end\n",
2498 ha->host_no));
2499 }
2500
2501 if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
2502
2503 DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
2504 ha->host_no));
2505
2506 if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
2507 &ha->dpc_flags))) {
2508
2509 rval = qla2x00_loop_resync(ha);
2510
2511 clear_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags);
2512 }
2513
2514 DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
2515 ha->host_no));
2516 }
2517
2518 if (test_and_clear_bit(FCPORT_RESCAN_NEEDED, &ha->dpc_flags)) {
2519
2520 DEBUG(printk("scsi(%ld): Rescan flagged fcports...\n",
2521 ha->host_no));
2522
2523 qla2x00_rescan_fcports(ha);
2524
2525 DEBUG(printk("scsi(%ld): Rescan flagged fcports..."
2526 "end.\n",
2527 ha->host_no));
2528 }
2529
2530 if (!ha->interrupts_on)
2531 ha->isp_ops->enable_intrs(ha);
2532
2533 if (test_and_clear_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags))
2534 ha->isp_ops->beacon_blink(ha);
2535
2536 qla2x00_do_dpc_all_vps(ha);
2537
2538 ha->dpc_active = 0;
2539 } /* End of while(1) */
2540
2541 DEBUG(printk("scsi(%ld): DPC handler exiting\n", ha->host_no));
2542
2543 /*
2544 * Make sure that nobody tries to wake us up again.
2545 */
2546 ha->dpc_active = 0;
2547
2548 return 0;
2549 }
2550
2551 void
2552 qla2xxx_wake_dpc(scsi_qla_host_t *ha)
2553 {
2554 if (ha->dpc_thread)
2555 wake_up_process(ha->dpc_thread);
2556 }
2557
2558 /*
2559 * qla2x00_rst_aen
2560 * Processes asynchronous reset.
2561 *
2562 * Input:
2563 * ha = adapter block pointer.
2564 */
2565 static void
2566 qla2x00_rst_aen(scsi_qla_host_t *ha)
2567 {
2568 if (ha->flags.online && !ha->flags.reset_active &&
2569 !atomic_read(&ha->loop_down_timer) &&
2570 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) {
2571 do {
2572 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
2573
2574 /*
2575 * Issue marker command only when we are going to start
2576 * the I/O.
2577 */
2578 ha->marker_needed = 1;
2579 } while (!atomic_read(&ha->loop_down_timer) &&
2580 (test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags)));
2581 }
2582 }
2583
2584 static void
2585 qla2x00_sp_free_dma(scsi_qla_host_t *ha, srb_t *sp)
2586 {
2587 struct scsi_cmnd *cmd = sp->cmd;
2588
2589 if (sp->flags & SRB_DMA_VALID) {
2590 scsi_dma_unmap(cmd);
2591 sp->flags &= ~SRB_DMA_VALID;
2592 }
2593 CMD_SP(cmd) = NULL;
2594 }
2595
2596 void
2597 qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *sp)
2598 {
2599 struct scsi_cmnd *cmd = sp->cmd;
2600
2601 qla2x00_sp_free_dma(ha, sp);
2602
2603 mempool_free(sp, ha->srb_mempool);
2604
2605 cmd->scsi_done(cmd);
2606 }
2607
2608 /**************************************************************************
2609 * qla2x00_timer
2610 *
2611 * Description:
2612 * One second timer
2613 *
2614 * Context: Interrupt
2615 ***************************************************************************/
2616 void
2617 qla2x00_timer(scsi_qla_host_t *ha)
2618 {
2619 unsigned long cpu_flags = 0;
2620 fc_port_t *fcport;
2621 int start_dpc = 0;
2622 int index;
2623 srb_t *sp;
2624 int t;
2625 scsi_qla_host_t *pha = to_qla_parent(ha);
2626
2627 /*
2628 * Ports - Port down timer.
2629 *
2630 * Whenever, a port is in the LOST state we start decrementing its port
2631 * down timer every second until it reaches zero. Once it reaches zero
2632 * the port it marked DEAD.
2633 */
2634 t = 0;
2635 list_for_each_entry(fcport, &ha->fcports, list) {
2636 if (fcport->port_type != FCT_TARGET)
2637 continue;
2638
2639 if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
2640
2641 if (atomic_read(&fcport->port_down_timer) == 0)
2642 continue;
2643
2644 if (atomic_dec_and_test(&fcport->port_down_timer) != 0)
2645 atomic_set(&fcport->state, FCS_DEVICE_DEAD);
2646
2647 DEBUG(printk("scsi(%ld): fcport-%d - port retry count: "
2648 "%d remaining\n",
2649 ha->host_no,
2650 t, atomic_read(&fcport->port_down_timer)));
2651 }
2652 t++;
2653 } /* End of for fcport */
2654
2655
2656 /* Loop down handler. */
2657 if (atomic_read(&ha->loop_down_timer) > 0 &&
2658 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags)) && ha->flags.online) {
2659
2660 if (atomic_read(&ha->loop_down_timer) ==
2661 ha->loop_down_abort_time) {
2662
2663 DEBUG(printk("scsi(%ld): Loop Down - aborting the "
2664 "queues before time expire\n",
2665 ha->host_no));
2666
2667 if (!IS_QLA2100(ha) && ha->link_down_timeout)
2668 atomic_set(&ha->loop_state, LOOP_DEAD);
2669
2670 /* Schedule an ISP abort to return any tape commands. */
2671 /* NPIV - scan physical port only */
2672 if (!ha->parent) {
2673 spin_lock_irqsave(&ha->hardware_lock,
2674 cpu_flags);
2675 for (index = 1;
2676 index < MAX_OUTSTANDING_COMMANDS;
2677 index++) {
2678 fc_port_t *sfcp;
2679
2680 sp = ha->outstanding_cmds[index];
2681 if (!sp)
2682 continue;
2683 sfcp = sp->fcport;
2684 if (!(sfcp->flags & FCF_TAPE_PRESENT))
2685 continue;
2686
2687 set_bit(ISP_ABORT_NEEDED,
2688 &ha->dpc_flags);
2689 break;
2690 }
2691 spin_unlock_irqrestore(&ha->hardware_lock,
2692 cpu_flags);
2693 }
2694 set_bit(ABORT_QUEUES_NEEDED, &ha->dpc_flags);
2695 start_dpc++;
2696 }
2697
2698 /* if the loop has been down for 4 minutes, reinit adapter */
2699 if (atomic_dec_and_test(&ha->loop_down_timer) != 0) {
2700 DEBUG(printk("scsi(%ld): Loop down exceed 4 mins - "
2701 "restarting queues.\n",
2702 ha->host_no));
2703
2704 set_bit(RESTART_QUEUES_NEEDED, &ha->dpc_flags);
2705 start_dpc++;
2706
2707 if (!(ha->device_flags & DFLG_NO_CABLE)) {
2708 DEBUG(printk("scsi(%ld): Loop down - "
2709 "aborting ISP.\n",
2710 ha->host_no));
2711 qla_printk(KERN_WARNING, ha,
2712 "Loop down - aborting ISP.\n");
2713
2714 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2715 }
2716 }
2717 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
2718 ha->host_no,
2719 atomic_read(&ha->loop_down_timer)));
2720 }
2721
2722 /* Check if beacon LED needs to be blinked */
2723 if (ha->beacon_blink_led == 1) {
2724 set_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags);
2725 start_dpc++;
2726 }
2727
2728 /* Schedule the DPC routine if needed */
2729 if ((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags) ||
2730 test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) ||
2731 test_bit(LOOP_RESET_NEEDED, &ha->dpc_flags) ||
2732 test_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags) ||
2733 start_dpc ||
2734 test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags) ||
2735 test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) ||
2736 test_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags) ||
2737 test_bit(VP_DPC_NEEDED, &ha->dpc_flags) ||
2738 test_bit(RELOGIN_NEEDED, &ha->dpc_flags)))
2739 qla2xxx_wake_dpc(pha);
2740
2741 qla2x00_restart_timer(ha, WATCH_INTERVAL);
2742 }
2743
2744 /* Firmware interface routines. */
2745
2746 #define FW_BLOBS 6
2747 #define FW_ISP21XX 0
2748 #define FW_ISP22XX 1
2749 #define FW_ISP2300 2
2750 #define FW_ISP2322 3
2751 #define FW_ISP24XX 4
2752 #define FW_ISP25XX 5
2753
2754 #define FW_FILE_ISP21XX "ql2100_fw.bin"
2755 #define FW_FILE_ISP22XX "ql2200_fw.bin"
2756 #define FW_FILE_ISP2300 "ql2300_fw.bin"
2757 #define FW_FILE_ISP2322 "ql2322_fw.bin"
2758 #define FW_FILE_ISP24XX "ql2400_fw.bin"
2759 #define FW_FILE_ISP25XX "ql2500_fw.bin"
2760
2761 static DECLARE_MUTEX(qla_fw_lock);
2762
2763 static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
2764 { .name = FW_FILE_ISP21XX, .segs = { 0x1000, 0 }, },
2765 { .name = FW_FILE_ISP22XX, .segs = { 0x1000, 0 }, },
2766 { .name = FW_FILE_ISP2300, .segs = { 0x800, 0 }, },
2767 { .name = FW_FILE_ISP2322, .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
2768 { .name = FW_FILE_ISP24XX, },
2769 { .name = FW_FILE_ISP25XX, },
2770 };
2771
2772 struct fw_blob *
2773 qla2x00_request_firmware(scsi_qla_host_t *ha)
2774 {
2775 struct fw_blob *blob;
2776
2777 blob = NULL;
2778 if (IS_QLA2100(ha)) {
2779 blob = &qla_fw_blobs[FW_ISP21XX];
2780 } else if (IS_QLA2200(ha)) {
2781 blob = &qla_fw_blobs[FW_ISP22XX];
2782 } else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
2783 blob = &qla_fw_blobs[FW_ISP2300];
2784 } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
2785 blob = &qla_fw_blobs[FW_ISP2322];
2786 } else if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
2787 blob = &qla_fw_blobs[FW_ISP24XX];
2788 } else if (IS_QLA25XX(ha)) {
2789 blob = &qla_fw_blobs[FW_ISP25XX];
2790 }
2791
2792 down(&qla_fw_lock);
2793 if (blob->fw)
2794 goto out;
2795
2796 if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
2797 DEBUG2(printk("scsi(%ld): Failed to load firmware image "
2798 "(%s).\n", ha->host_no, blob->name));
2799 blob->fw = NULL;
2800 blob = NULL;
2801 goto out;
2802 }
2803
2804 out:
2805 up(&qla_fw_lock);
2806 return blob;
2807 }
2808
2809 static void
2810 qla2x00_release_firmware(void)
2811 {
2812 int idx;
2813
2814 down(&qla_fw_lock);
2815 for (idx = 0; idx < FW_BLOBS; idx++)
2816 if (qla_fw_blobs[idx].fw)
2817 release_firmware(qla_fw_blobs[idx].fw);
2818 up(&qla_fw_lock);
2819 }
2820
2821 static pci_ers_result_t
2822 qla2xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
2823 {
2824 switch (state) {
2825 case pci_channel_io_normal:
2826 return PCI_ERS_RESULT_CAN_RECOVER;
2827 case pci_channel_io_frozen:
2828 pci_disable_device(pdev);
2829 return PCI_ERS_RESULT_NEED_RESET;
2830 case pci_channel_io_perm_failure:
2831 qla2x00_remove_one(pdev);
2832 return PCI_ERS_RESULT_DISCONNECT;
2833 }
2834 return PCI_ERS_RESULT_NEED_RESET;
2835 }
2836
2837 static pci_ers_result_t
2838 qla2xxx_pci_mmio_enabled(struct pci_dev *pdev)
2839 {
2840 int risc_paused = 0;
2841 uint32_t stat;
2842 unsigned long flags;
2843 scsi_qla_host_t *ha = pci_get_drvdata(pdev);
2844 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
2845 struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
2846
2847 spin_lock_irqsave(&ha->hardware_lock, flags);
2848 if (IS_QLA2100(ha) || IS_QLA2200(ha)){
2849 stat = RD_REG_DWORD(&reg->hccr);
2850 if (stat & HCCR_RISC_PAUSE)
2851 risc_paused = 1;
2852 } else if (IS_QLA23XX(ha)) {
2853 stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
2854 if (stat & HSR_RISC_PAUSED)
2855 risc_paused = 1;
2856 } else if (IS_FWI2_CAPABLE(ha)) {
2857 stat = RD_REG_DWORD(&reg24->host_status);
2858 if (stat & HSRX_RISC_PAUSED)
2859 risc_paused = 1;
2860 }
2861 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2862
2863 if (risc_paused) {
2864 qla_printk(KERN_INFO, ha, "RISC paused -- mmio_enabled, "
2865 "Dumping firmware!\n");
2866 ha->isp_ops->fw_dump(ha, 0);
2867
2868 return PCI_ERS_RESULT_NEED_RESET;
2869 } else
2870 return PCI_ERS_RESULT_RECOVERED;
2871 }
2872
2873 static pci_ers_result_t
2874 qla2xxx_pci_slot_reset(struct pci_dev *pdev)
2875 {
2876 pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
2877 scsi_qla_host_t *ha = pci_get_drvdata(pdev);
2878
2879 if (pci_enable_device_bars(pdev, ha->bars)) {
2880 qla_printk(KERN_WARNING, ha,
2881 "Can't re-enable PCI device after reset.\n");
2882
2883 return ret;
2884 }
2885 pci_set_master(pdev);
2886
2887 if (ha->isp_ops->pci_config(ha))
2888 return ret;
2889
2890 set_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2891 if (qla2x00_abort_isp(ha)== QLA_SUCCESS)
2892 ret = PCI_ERS_RESULT_RECOVERED;
2893 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2894
2895 return ret;
2896 }
2897
2898 static void
2899 qla2xxx_pci_resume(struct pci_dev *pdev)
2900 {
2901 scsi_qla_host_t *ha = pci_get_drvdata(pdev);
2902 int ret;
2903
2904 ret = qla2x00_wait_for_hba_online(ha);
2905 if (ret != QLA_SUCCESS) {
2906 qla_printk(KERN_ERR, ha,
2907 "the device failed to resume I/O "
2908 "from slot/link_reset");
2909 }
2910 pci_cleanup_aer_uncorrect_error_status(pdev);
2911 }
2912
2913 static struct pci_error_handlers qla2xxx_err_handler = {
2914 .error_detected = qla2xxx_pci_error_detected,
2915 .mmio_enabled = qla2xxx_pci_mmio_enabled,
2916 .slot_reset = qla2xxx_pci_slot_reset,
2917 .resume = qla2xxx_pci_resume,
2918 };
2919
2920 static struct pci_device_id qla2xxx_pci_tbl[] = {
2921 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
2922 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
2923 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
2924 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
2925 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
2926 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
2927 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
2928 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
2929 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
2930 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
2931 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
2932 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2532) },
2933 { 0 },
2934 };
2935 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
2936
2937 static struct pci_driver qla2xxx_pci_driver = {
2938 .name = QLA2XXX_DRIVER_NAME,
2939 .driver = {
2940 .owner = THIS_MODULE,
2941 },
2942 .id_table = qla2xxx_pci_tbl,
2943 .probe = qla2x00_probe_one,
2944 .remove = qla2x00_remove_one,
2945 .err_handler = &qla2xxx_err_handler,
2946 };
2947
2948 /**
2949 * qla2x00_module_init - Module initialization.
2950 **/
2951 static int __init
2952 qla2x00_module_init(void)
2953 {
2954 int ret = 0;
2955
2956 /* Allocate cache for SRBs. */
2957 srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
2958 SLAB_HWCACHE_ALIGN, NULL);
2959 if (srb_cachep == NULL) {
2960 printk(KERN_ERR
2961 "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
2962 return -ENOMEM;
2963 }
2964
2965 /* Derive version string. */
2966 strcpy(qla2x00_version_str, QLA2XXX_VERSION);
2967 if (ql2xextended_error_logging)
2968 strcat(qla2x00_version_str, "-debug");
2969
2970 qla2xxx_transport_template =
2971 fc_attach_transport(&qla2xxx_transport_functions);
2972 if (!qla2xxx_transport_template) {
2973 kmem_cache_destroy(srb_cachep);
2974 return -ENODEV;
2975 }
2976 qla2xxx_transport_vport_template =
2977 fc_attach_transport(&qla2xxx_transport_vport_functions);
2978 if (!qla2xxx_transport_vport_template) {
2979 kmem_cache_destroy(srb_cachep);
2980 fc_release_transport(qla2xxx_transport_template);
2981 return -ENODEV;
2982 }
2983
2984 printk(KERN_INFO "QLogic Fibre Channel HBA Driver\n");
2985 ret = pci_register_driver(&qla2xxx_pci_driver);
2986 if (ret) {
2987 kmem_cache_destroy(srb_cachep);
2988 fc_release_transport(qla2xxx_transport_template);
2989 fc_release_transport(qla2xxx_transport_vport_template);
2990 }
2991 return ret;
2992 }
2993
2994 /**
2995 * qla2x00_module_exit - Module cleanup.
2996 **/
2997 static void __exit
2998 qla2x00_module_exit(void)
2999 {
3000 pci_unregister_driver(&qla2xxx_pci_driver);
3001 qla2x00_release_firmware();
3002 kmem_cache_destroy(srb_cachep);
3003 fc_release_transport(qla2xxx_transport_template);
3004 fc_release_transport(qla2xxx_transport_vport_template);
3005 }
3006
3007 module_init(qla2x00_module_init);
3008 module_exit(qla2x00_module_exit);
3009
3010 MODULE_AUTHOR("QLogic Corporation");
3011 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
3012 MODULE_LICENSE("GPL");
3013 MODULE_VERSION(QLA2XXX_VERSION);
3014 MODULE_FIRMWARE(FW_FILE_ISP21XX);
3015 MODULE_FIRMWARE(FW_FILE_ISP22XX);
3016 MODULE_FIRMWARE(FW_FILE_ISP2300);
3017 MODULE_FIRMWARE(FW_FILE_ISP2322);
3018 MODULE_FIRMWARE(FW_FILE_ISP24XX);
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