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x86: cpa, eliminate CPA_ enum
[wrt350n-kernel.git] / drivers / scsi / qla2xxx / qla_os.c
blob8f69caf8327254dc12d55bff8487d3dfadbf318b
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, mem_only = 0;
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 mem_only = 1;
1579 }
1580
1581 if (mem_only) {
1582 if (pci_enable_device_mem(pdev))
1583 goto probe_out;
1584 } else {
1585 if (pci_enable_device(pdev))
1586 goto probe_out;
1587 }
1588
1589 if (pci_find_aer_capability(pdev))
1590 if (pci_enable_pcie_error_reporting(pdev))
1591 goto probe_out;
1592
1593 host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
1594 if (host == NULL) {
1595 printk(KERN_WARNING
1596 "qla2xxx: Couldn't allocate host from scsi layer!\n");
1597 goto probe_disable_device;
1598 }
1599
1600 /* Clear our data area */
1601 ha = shost_priv(host);
1602 memset(ha, 0, sizeof(scsi_qla_host_t));
1603
1604 ha->pdev = pdev;
1605 ha->host = host;
1606 ha->host_no = host->host_no;
1607 sprintf(ha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, ha->host_no);
1608 ha->parent = NULL;
1609 ha->bars = bars;
1610 ha->mem_only = mem_only;
1611
1612 /* Set ISP-type information. */
1613 qla2x00_set_isp_flags(ha);
1614
1615 /* Configure PCI I/O space */
1616 ret = qla2x00_iospace_config(ha);
1617 if (ret)
1618 goto probe_failed;
1619
1620 qla_printk(KERN_INFO, ha,
1621 "Found an ISP%04X, irq %d, iobase 0x%p\n", pdev->device, pdev->irq,
1622 ha->iobase);
1623
1624 spin_lock_init(&ha->hardware_lock);
1625
1626 ha->prev_topology = 0;
1627 ha->init_cb_size = sizeof(init_cb_t);
1628 ha->mgmt_svr_loop_id = MANAGEMENT_SERVER + ha->vp_idx;
1629 ha->link_data_rate = PORT_SPEED_UNKNOWN;
1630 ha->optrom_size = OPTROM_SIZE_2300;
1631
1632 ha->max_q_depth = MAX_Q_DEPTH;
1633 if (ql2xmaxqdepth != 0 && ql2xmaxqdepth <= 0xffffU)
1634 ha->max_q_depth = ql2xmaxqdepth;
1635
1636 /* Assign ISP specific operations. */
1637 if (IS_QLA2100(ha)) {
1638 host->max_id = MAX_TARGETS_2100;
1639 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
1640 ha->request_q_length = REQUEST_ENTRY_CNT_2100;
1641 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1642 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1643 host->sg_tablesize = 32;
1644 ha->gid_list_info_size = 4;
1645 ha->isp_ops = &qla2100_isp_ops;
1646 } else if (IS_QLA2200(ha)) {
1647 host->max_id = MAX_TARGETS_2200;
1648 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1649 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1650 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1651 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1652 ha->gid_list_info_size = 4;
1653 ha->isp_ops = &qla2100_isp_ops;
1654 } else if (IS_QLA23XX(ha)) {
1655 host->max_id = MAX_TARGETS_2200;
1656 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1657 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1658 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1659 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1660 ha->gid_list_info_size = 6;
1661 if (IS_QLA2322(ha) || IS_QLA6322(ha))
1662 ha->optrom_size = OPTROM_SIZE_2322;
1663 ha->isp_ops = &qla2300_isp_ops;
1664 } else if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
1665 host->max_id = MAX_TARGETS_2200;
1666 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1667 ha->request_q_length = REQUEST_ENTRY_CNT_24XX;
1668 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1669 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1670 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
1671 ha->mgmt_svr_loop_id = 10 + ha->vp_idx;
1672 ha->gid_list_info_size = 8;
1673 ha->optrom_size = OPTROM_SIZE_24XX;
1674 ha->isp_ops = &qla24xx_isp_ops;
1675 } else if (IS_QLA25XX(ha)) {
1676 host->max_id = MAX_TARGETS_2200;
1677 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1678 ha->request_q_length = REQUEST_ENTRY_CNT_24XX;
1679 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1680 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1681 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
1682 ha->mgmt_svr_loop_id = 10 + ha->vp_idx;
1683 ha->gid_list_info_size = 8;
1684 ha->optrom_size = OPTROM_SIZE_25XX;
1685 ha->isp_ops = &qla25xx_isp_ops;
1686 }
1687 host->can_queue = ha->request_q_length + 128;
1688
1689 /* load the F/W, read paramaters, and init the H/W */
1690 ha->instance = num_hosts;
1691
1692 init_MUTEX(&ha->vport_sem);
1693 init_completion(&ha->mbx_cmd_comp);
1694 complete(&ha->mbx_cmd_comp);
1695 init_completion(&ha->mbx_intr_comp);
1696
1697 INIT_LIST_HEAD(&ha->list);
1698 INIT_LIST_HEAD(&ha->fcports);
1699 INIT_LIST_HEAD(&ha->vp_list);
1700
1701 set_bit(0, (unsigned long *) ha->vp_idx_map);
1702
1703 qla2x00_config_dma_addressing(ha);
1704 if (qla2x00_mem_alloc(ha)) {
1705 qla_printk(KERN_WARNING, ha,
1706 "[ERROR] Failed to allocate memory for adapter\n");
1707
1708 ret = -ENOMEM;
1709 goto probe_failed;
1710 }
1711
1712 if (qla2x00_initialize_adapter(ha)) {
1713 qla_printk(KERN_WARNING, ha,
1714 "Failed to initialize adapter\n");
1715
1716 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
1717 "Adapter flags %x.\n",
1718 ha->host_no, ha->device_flags));
1719
1720 ret = -ENODEV;
1721 goto probe_failed;
1722 }
1723
1724 /*
1725 * Startup the kernel thread for this host adapter
1726 */
1727 ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
1728 "%s_dpc", ha->host_str);
1729 if (IS_ERR(ha->dpc_thread)) {
1730 qla_printk(KERN_WARNING, ha,
1731 "Unable to start DPC thread!\n");
1732 ret = PTR_ERR(ha->dpc_thread);
1733 goto probe_failed;
1734 }
1735
1736 host->this_id = 255;
1737 host->cmd_per_lun = 3;
1738 host->unique_id = ha->instance;
1739 host->max_cmd_len = MAX_CMDSZ;
1740 host->max_channel = MAX_BUSES - 1;
1741 host->max_lun = MAX_LUNS;
1742 host->transportt = qla2xxx_transport_template;
1743
1744 ret = qla2x00_request_irqs(ha);
1745 if (ret)
1746 goto probe_failed;
1747
1748 /* Initialized the timer */
1749 qla2x00_start_timer(ha, qla2x00_timer, WATCH_INTERVAL);
1750
1751 DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
1752 ha->host_no, ha));
1753
1754 ha->isp_ops->disable_intrs(ha);
1755
1756 spin_lock_irqsave(&ha->hardware_lock, flags);
1757 reg = ha->iobase;
1758 if (IS_FWI2_CAPABLE(ha)) {
1759 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_HOST_INT);
1760 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_RISC_INT);
1761 } else {
1762 WRT_REG_WORD(&reg->isp.semaphore, 0);
1763 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_RISC_INT);
1764 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_HOST_INT);
1765
1766 /* Enable proper parity */
1767 if (!IS_QLA2100(ha) && !IS_QLA2200(ha)) {
1768 if (IS_QLA2300(ha))
1769 /* SRAM parity */
1770 WRT_REG_WORD(&reg->isp.hccr,
1771 (HCCR_ENABLE_PARITY + 0x1));
1772 else
1773 /* SRAM, Instruction RAM and GP RAM parity */
1774 WRT_REG_WORD(&reg->isp.hccr,
1775 (HCCR_ENABLE_PARITY + 0x7));
1776 }
1777 }
1778 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1779
1780 ha->isp_ops->enable_intrs(ha);
1781
1782 pci_set_drvdata(pdev, ha);
1783
1784 ha->flags.init_done = 1;
1785 ha->flags.online = 1;
1786
1787 num_hosts++;
1788
1789 ret = scsi_add_host(host, &pdev->dev);
1790 if (ret)
1791 goto probe_failed;
1792
1793 scsi_scan_host(host);
1794
1795 qla2x00_alloc_sysfs_attr(ha);
1796
1797 qla2x00_init_host_attr(ha);
1798
1799 qla2x00_dfs_setup(ha);
1800
1801 qla_printk(KERN_INFO, ha, "\n"
1802 " QLogic Fibre Channel HBA Driver: %s\n"
1803 " QLogic %s - %s\n"
1804 " ISP%04X: %s @ %s hdma%c, host#=%ld, fw=%s\n",
1805 qla2x00_version_str, ha->model_number,
1806 ha->model_desc ? ha->model_desc: "", pdev->device,
1807 ha->isp_ops->pci_info_str(ha, pci_info), pci_name(pdev),
1808 ha->flags.enable_64bit_addressing ? '+': '-', ha->host_no,
1809 ha->isp_ops->fw_version_str(ha, fw_str));
1810
1811 return 0;
1812
1813 probe_failed:
1814 qla2x00_free_device(ha);
1815
1816 scsi_host_put(host);
1817
1818 probe_disable_device:
1819 pci_disable_device(pdev);
1820
1821 probe_out:
1822 return ret;
1823 }
1824
1825 static void
1826 qla2x00_remove_one(struct pci_dev *pdev)
1827 {
1828 scsi_qla_host_t *ha;
1829
1830 ha = pci_get_drvdata(pdev);
1831
1832 qla2x00_dfs_remove(ha);
1833
1834 qla2x00_free_sysfs_attr(ha);
1835
1836 fc_remove_host(ha->host);
1837
1838 scsi_remove_host(ha->host);
1839
1840 qla2x00_free_device(ha);
1841
1842 scsi_host_put(ha->host);
1843
1844 pci_disable_device(pdev);
1845 pci_set_drvdata(pdev, NULL);
1846 }
1847
1848 static void
1849 qla2x00_free_device(scsi_qla_host_t *ha)
1850 {
1851 /* Disable timer */
1852 if (ha->timer_active)
1853 qla2x00_stop_timer(ha);
1854
1855 /* Kill the kernel thread for this host */
1856 if (ha->dpc_thread) {
1857 struct task_struct *t = ha->dpc_thread;
1858
1859 /*
1860 * qla2xxx_wake_dpc checks for ->dpc_thread
1861 * so we need to zero it out.
1862 */
1863 ha->dpc_thread = NULL;
1864 kthread_stop(t);
1865 }
1866
1867 if (ha->flags.fce_enabled)
1868 qla2x00_disable_fce_trace(ha, NULL, NULL);
1869
1870 if (ha->eft)
1871 qla2x00_disable_eft_trace(ha);
1872
1873 ha->flags.online = 0;
1874
1875 /* Stop currently executing firmware. */
1876 qla2x00_try_to_stop_firmware(ha);
1877
1878 /* turn-off interrupts on the card */
1879 if (ha->interrupts_on)
1880 ha->isp_ops->disable_intrs(ha);
1881
1882 qla2x00_mem_free(ha);
1883
1884 qla2x00_free_irqs(ha);
1885
1886 /* release io space registers */
1887 if (ha->iobase)
1888 iounmap(ha->iobase);
1889 pci_release_selected_regions(ha->pdev, ha->bars);
1890 }
1891
1892 static inline void
1893 qla2x00_schedule_rport_del(struct scsi_qla_host *ha, fc_port_t *fcport,
1894 int defer)
1895 {
1896 unsigned long flags;
1897 struct fc_rport *rport;
1898
1899 if (!fcport->rport)
1900 return;
1901
1902 rport = fcport->rport;
1903 if (defer) {
1904 spin_lock_irqsave(&fcport->rport_lock, flags);
1905 fcport->drport = rport;
1906 fcport->rport = NULL;
1907 *(fc_port_t **)rport->dd_data = NULL;
1908 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1909 set_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags);
1910 } else {
1911 spin_lock_irqsave(&fcport->rport_lock, flags);
1912 fcport->rport = NULL;
1913 *(fc_port_t **)rport->dd_data = NULL;
1914 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1915 fc_remote_port_delete(rport);
1916 }
1917 }
1918
1919 /*
1920 * qla2x00_mark_device_lost Updates fcport state when device goes offline.
1921 *
1922 * Input: ha = adapter block pointer. fcport = port structure pointer.
1923 *
1924 * Return: None.
1925 *
1926 * Context:
1927 */
1928 void qla2x00_mark_device_lost(scsi_qla_host_t *ha, fc_port_t *fcport,
1929 int do_login, int defer)
1930 {
1931 if (atomic_read(&fcport->state) == FCS_ONLINE &&
1932 ha->vp_idx == fcport->vp_idx)
1933 qla2x00_schedule_rport_del(ha, fcport, defer);
1934
1935 /*
1936 * We may need to retry the login, so don't change the state of the
1937 * port but do the retries.
1938 */
1939 if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
1940 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1941
1942 if (!do_login)
1943 return;
1944
1945 if (fcport->login_retry == 0) {
1946 fcport->login_retry = ha->login_retry_count;
1947 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
1948
1949 DEBUG(printk("scsi(%ld): Port login retry: "
1950 "%02x%02x%02x%02x%02x%02x%02x%02x, "
1951 "id = 0x%04x retry cnt=%d\n",
1952 ha->host_no,
1953 fcport->port_name[0],
1954 fcport->port_name[1],
1955 fcport->port_name[2],
1956 fcport->port_name[3],
1957 fcport->port_name[4],
1958 fcport->port_name[5],
1959 fcport->port_name[6],
1960 fcport->port_name[7],
1961 fcport->loop_id,
1962 fcport->login_retry));
1963 }
1964 }
1965
1966 /*
1967 * qla2x00_mark_all_devices_lost
1968 * Updates fcport state when device goes offline.
1969 *
1970 * Input:
1971 * ha = adapter block pointer.
1972 * fcport = port structure pointer.
1973 *
1974 * Return:
1975 * None.
1976 *
1977 * Context:
1978 */
1979 void
1980 qla2x00_mark_all_devices_lost(scsi_qla_host_t *ha, int defer)
1981 {
1982 fc_port_t *fcport;
1983 scsi_qla_host_t *pha = to_qla_parent(ha);
1984
1985 list_for_each_entry(fcport, &pha->fcports, list) {
1986 if (ha->vp_idx != 0 && ha->vp_idx != fcport->vp_idx)
1987 continue;
1988 /*
1989 * No point in marking the device as lost, if the device is
1990 * already DEAD.
1991 */
1992 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
1993 continue;
1994 if (atomic_read(&fcport->state) == FCS_ONLINE) {
1995 if (defer)
1996 qla2x00_schedule_rport_del(ha, fcport, defer);
1997 else if (ha->vp_idx == fcport->vp_idx)
1998 qla2x00_schedule_rport_del(ha, fcport, defer);
1999 }
2000 atomic_set(&fcport->state, FCS_DEVICE_LOST);
2001 }
2002
2003 if (defer)
2004 qla2xxx_wake_dpc(ha);
2005 }
2006
2007 /*
2008 * qla2x00_mem_alloc
2009 * Allocates adapter memory.
2010 *
2011 * Returns:
2012 * 0 = success.
2013 * 1 = failure.
2014 */
2015 static uint8_t
2016 qla2x00_mem_alloc(scsi_qla_host_t *ha)
2017 {
2018 char name[16];
2019 uint8_t status = 1;
2020 int retry= 10;
2021
2022 do {
2023 /*
2024 * This will loop only once if everything goes well, else some
2025 * number of retries will be performed to get around a kernel
2026 * bug where available mem is not allocated until after a
2027 * little delay and a retry.
2028 */
2029 ha->request_ring = dma_alloc_coherent(&ha->pdev->dev,
2030 (ha->request_q_length + 1) * sizeof(request_t),
2031 &ha->request_dma, GFP_KERNEL);
2032 if (ha->request_ring == NULL) {
2033 qla_printk(KERN_WARNING, ha,
2034 "Memory Allocation failed - request_ring\n");
2035
2036 qla2x00_mem_free(ha);
2037 msleep(100);
2038
2039 continue;
2040 }
2041
2042 ha->response_ring = dma_alloc_coherent(&ha->pdev->dev,
2043 (ha->response_q_length + 1) * sizeof(response_t),
2044 &ha->response_dma, GFP_KERNEL);
2045 if (ha->response_ring == NULL) {
2046 qla_printk(KERN_WARNING, ha,
2047 "Memory Allocation failed - response_ring\n");
2048
2049 qla2x00_mem_free(ha);
2050 msleep(100);
2051
2052 continue;
2053 }
2054
2055 ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
2056 &ha->gid_list_dma, GFP_KERNEL);
2057 if (ha->gid_list == NULL) {
2058 qla_printk(KERN_WARNING, ha,
2059 "Memory Allocation failed - gid_list\n");
2060
2061 qla2x00_mem_free(ha);
2062 msleep(100);
2063
2064 continue;
2065 }
2066
2067 /* get consistent memory allocated for init control block */
2068 ha->init_cb = dma_alloc_coherent(&ha->pdev->dev,
2069 ha->init_cb_size, &ha->init_cb_dma, GFP_KERNEL);
2070 if (ha->init_cb == NULL) {
2071 qla_printk(KERN_WARNING, ha,
2072 "Memory Allocation failed - init_cb\n");
2073
2074 qla2x00_mem_free(ha);
2075 msleep(100);
2076
2077 continue;
2078 }
2079 memset(ha->init_cb, 0, ha->init_cb_size);
2080
2081 snprintf(name, sizeof(name), "%s_%ld", QLA2XXX_DRIVER_NAME,
2082 ha->host_no);
2083 ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
2084 DMA_POOL_SIZE, 8, 0);
2085 if (ha->s_dma_pool == NULL) {
2086 qla_printk(KERN_WARNING, ha,
2087 "Memory Allocation failed - s_dma_pool\n");
2088
2089 qla2x00_mem_free(ha);
2090 msleep(100);
2091
2092 continue;
2093 }
2094
2095 if (qla2x00_allocate_sp_pool(ha)) {
2096 qla_printk(KERN_WARNING, ha,
2097 "Memory Allocation failed - "
2098 "qla2x00_allocate_sp_pool()\n");
2099
2100 qla2x00_mem_free(ha);
2101 msleep(100);
2102
2103 continue;
2104 }
2105
2106 /* Allocate memory for SNS commands */
2107 if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
2108 /* Get consistent memory allocated for SNS commands */
2109 ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
2110 sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma,
2111 GFP_KERNEL);
2112 if (ha->sns_cmd == NULL) {
2113 /* error */
2114 qla_printk(KERN_WARNING, ha,
2115 "Memory Allocation failed - sns_cmd\n");
2116
2117 qla2x00_mem_free(ha);
2118 msleep(100);
2119
2120 continue;
2121 }
2122 memset(ha->sns_cmd, 0, sizeof(struct sns_cmd_pkt));
2123 } else {
2124 /* Get consistent memory allocated for MS IOCB */
2125 ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2126 &ha->ms_iocb_dma);
2127 if (ha->ms_iocb == NULL) {
2128 /* error */
2129 qla_printk(KERN_WARNING, ha,
2130 "Memory Allocation failed - ms_iocb\n");
2131
2132 qla2x00_mem_free(ha);
2133 msleep(100);
2134
2135 continue;
2136 }
2137 memset(ha->ms_iocb, 0, sizeof(ms_iocb_entry_t));
2138
2139 /*
2140 * Get consistent memory allocated for CT SNS
2141 * commands
2142 */
2143 ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
2144 sizeof(struct ct_sns_pkt), &ha->ct_sns_dma,
2145 GFP_KERNEL);
2146 if (ha->ct_sns == NULL) {
2147 /* error */
2148 qla_printk(KERN_WARNING, ha,
2149 "Memory Allocation failed - ct_sns\n");
2150
2151 qla2x00_mem_free(ha);
2152 msleep(100);
2153
2154 continue;
2155 }
2156 memset(ha->ct_sns, 0, sizeof(struct ct_sns_pkt));
2157
2158 if (IS_FWI2_CAPABLE(ha)) {
2159 /*
2160 * Get consistent memory allocated for SFP
2161 * block.
2162 */
2163 ha->sfp_data = dma_pool_alloc(ha->s_dma_pool,
2164 GFP_KERNEL, &ha->sfp_data_dma);
2165 if (ha->sfp_data == NULL) {
2166 qla_printk(KERN_WARNING, ha,
2167 "Memory Allocation failed - "
2168 "sfp_data\n");
2169
2170 qla2x00_mem_free(ha);
2171 msleep(100);
2172
2173 continue;
2174 }
2175 memset(ha->sfp_data, 0, SFP_BLOCK_SIZE);
2176 }
2177 }
2178
2179 /* Get memory for cached NVRAM */
2180 ha->nvram = kzalloc(MAX_NVRAM_SIZE, GFP_KERNEL);
2181 if (ha->nvram == NULL) {
2182 /* error */
2183 qla_printk(KERN_WARNING, ha,
2184 "Memory Allocation failed - nvram cache\n");
2185
2186 qla2x00_mem_free(ha);
2187 msleep(100);
2188
2189 continue;
2190 }
2191
2192 /* Done all allocations without any error. */
2193 status = 0;
2194
2195 } while (retry-- && status != 0);
2196
2197 if (status) {
2198 printk(KERN_WARNING
2199 "%s(): **** FAILED ****\n", __func__);
2200 }
2201
2202 return(status);
2203 }
2204
2205 /*
2206 * qla2x00_mem_free
2207 * Frees all adapter allocated memory.
2208 *
2209 * Input:
2210 * ha = adapter block pointer.
2211 */
2212 static void
2213 qla2x00_mem_free(scsi_qla_host_t *ha)
2214 {
2215 struct list_head *fcpl, *fcptemp;
2216 fc_port_t *fcport;
2217
2218 if (ha == NULL) {
2219 /* error */
2220 DEBUG2(printk("%s(): ERROR invalid ha pointer.\n", __func__));
2221 return;
2222 }
2223
2224 /* free sp pool */
2225 qla2x00_free_sp_pool(ha);
2226
2227 if (ha->fce)
2228 dma_free_coherent(&ha->pdev->dev, FCE_SIZE, ha->fce,
2229 ha->fce_dma);
2230
2231 if (ha->fw_dump) {
2232 if (ha->eft)
2233 dma_free_coherent(&ha->pdev->dev,
2234 ntohl(ha->fw_dump->eft_size), ha->eft, ha->eft_dma);
2235 vfree(ha->fw_dump);
2236 }
2237
2238 if (ha->sns_cmd)
2239 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
2240 ha->sns_cmd, ha->sns_cmd_dma);
2241
2242 if (ha->ct_sns)
2243 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2244 ha->ct_sns, ha->ct_sns_dma);
2245
2246 if (ha->sfp_data)
2247 dma_pool_free(ha->s_dma_pool, ha->sfp_data, ha->sfp_data_dma);
2248
2249 if (ha->ms_iocb)
2250 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2251
2252 if (ha->s_dma_pool)
2253 dma_pool_destroy(ha->s_dma_pool);
2254
2255 if (ha->init_cb)
2256 dma_free_coherent(&ha->pdev->dev, ha->init_cb_size,
2257 ha->init_cb, ha->init_cb_dma);
2258
2259 if (ha->gid_list)
2260 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2261 ha->gid_list_dma);
2262
2263 if (ha->response_ring)
2264 dma_free_coherent(&ha->pdev->dev,
2265 (ha->response_q_length + 1) * sizeof(response_t),
2266 ha->response_ring, ha->response_dma);
2267
2268 if (ha->request_ring)
2269 dma_free_coherent(&ha->pdev->dev,
2270 (ha->request_q_length + 1) * sizeof(request_t),
2271 ha->request_ring, ha->request_dma);
2272
2273 ha->eft = NULL;
2274 ha->eft_dma = 0;
2275 ha->sns_cmd = NULL;
2276 ha->sns_cmd_dma = 0;
2277 ha->ct_sns = NULL;
2278 ha->ct_sns_dma = 0;
2279 ha->ms_iocb = NULL;
2280 ha->ms_iocb_dma = 0;
2281 ha->init_cb = NULL;
2282 ha->init_cb_dma = 0;
2283
2284 ha->s_dma_pool = NULL;
2285
2286 ha->gid_list = NULL;
2287 ha->gid_list_dma = 0;
2288
2289 ha->response_ring = NULL;
2290 ha->response_dma = 0;
2291 ha->request_ring = NULL;
2292 ha->request_dma = 0;
2293
2294 list_for_each_safe(fcpl, fcptemp, &ha->fcports) {
2295 fcport = list_entry(fcpl, fc_port_t, list);
2296
2297 /* fc ports */
2298 list_del_init(&fcport->list);
2299 kfree(fcport);
2300 }
2301 INIT_LIST_HEAD(&ha->fcports);
2302
2303 ha->fw_dump = NULL;
2304 ha->fw_dumped = 0;
2305 ha->fw_dump_reading = 0;
2306
2307 vfree(ha->optrom_buffer);
2308 kfree(ha->nvram);
2309 }
2310
2311 /*
2312 * qla2x00_allocate_sp_pool
2313 * This routine is called during initialization to allocate
2314 * memory for local srb_t.
2315 *
2316 * Input:
2317 * ha = adapter block pointer.
2318 *
2319 * Context:
2320 * Kernel context.
2321 */
2322 static int
2323 qla2x00_allocate_sp_pool(scsi_qla_host_t *ha)
2324 {
2325 int rval;
2326
2327 rval = QLA_SUCCESS;
2328 ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
2329 if (ha->srb_mempool == NULL) {
2330 qla_printk(KERN_INFO, ha, "Unable to allocate SRB mempool.\n");
2331 rval = QLA_FUNCTION_FAILED;
2332 }
2333 return (rval);
2334 }
2335
2336 /*
2337 * This routine frees all adapter allocated memory.
2338 *
2339 */
2340 static void
2341 qla2x00_free_sp_pool( scsi_qla_host_t *ha)
2342 {
2343 if (ha->srb_mempool) {
2344 mempool_destroy(ha->srb_mempool);
2345 ha->srb_mempool = NULL;
2346 }
2347 }
2348
2349 /**************************************************************************
2350 * qla2x00_do_dpc
2351 * This kernel thread is a task that is schedule by the interrupt handler
2352 * to perform the background processing for interrupts.
2353 *
2354 * Notes:
2355 * This task always run in the context of a kernel thread. It
2356 * is kick-off by the driver's detect code and starts up
2357 * up one per adapter. It immediately goes to sleep and waits for
2358 * some fibre event. When either the interrupt handler or
2359 * the timer routine detects a event it will one of the task
2360 * bits then wake us up.
2361 **************************************************************************/
2362 static int
2363 qla2x00_do_dpc(void *data)
2364 {
2365 int rval;
2366 scsi_qla_host_t *ha;
2367 fc_port_t *fcport;
2368 uint8_t status;
2369 uint16_t next_loopid;
2370
2371 ha = (scsi_qla_host_t *)data;
2372
2373 set_user_nice(current, -20);
2374
2375 while (!kthread_should_stop()) {
2376 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
2377
2378 set_current_state(TASK_INTERRUPTIBLE);
2379 schedule();
2380 __set_current_state(TASK_RUNNING);
2381
2382 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
2383
2384 /* Initialization not yet finished. Don't do anything yet. */
2385 if (!ha->flags.init_done)
2386 continue;
2387
2388 DEBUG3(printk("scsi(%ld): DPC handler\n", ha->host_no));
2389
2390 ha->dpc_active = 1;
2391
2392 if (ha->flags.mbox_busy) {
2393 ha->dpc_active = 0;
2394 continue;
2395 }
2396
2397 if (test_and_clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) {
2398
2399 DEBUG(printk("scsi(%ld): dpc: sched "
2400 "qla2x00_abort_isp ha = %p\n",
2401 ha->host_no, ha));
2402 if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
2403 &ha->dpc_flags))) {
2404
2405 if (qla2x00_abort_isp(ha)) {
2406 /* failed. retry later */
2407 set_bit(ISP_ABORT_NEEDED,
2408 &ha->dpc_flags);
2409 }
2410 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2411 }
2412 DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
2413 ha->host_no));
2414 }
2415
2416 if (test_and_clear_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags))
2417 qla2x00_update_fcports(ha);
2418
2419 if (test_and_clear_bit(LOOP_RESET_NEEDED, &ha->dpc_flags)) {
2420 DEBUG(printk("scsi(%ld): dpc: sched loop_reset()\n",
2421 ha->host_no));
2422 qla2x00_loop_reset(ha);
2423 }
2424
2425 if (test_and_clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) &&
2426 (!(test_and_set_bit(RESET_ACTIVE, &ha->dpc_flags)))) {
2427
2428 DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
2429 ha->host_no));
2430
2431 qla2x00_rst_aen(ha);
2432 clear_bit(RESET_ACTIVE, &ha->dpc_flags);
2433 }
2434
2435 /* Retry each device up to login retry count */
2436 if ((test_and_clear_bit(RELOGIN_NEEDED, &ha->dpc_flags)) &&
2437 !test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) &&
2438 atomic_read(&ha->loop_state) != LOOP_DOWN) {
2439
2440 DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
2441 ha->host_no));
2442
2443 next_loopid = 0;
2444 list_for_each_entry(fcport, &ha->fcports, list) {
2445 /*
2446 * If the port is not ONLINE then try to login
2447 * to it if we haven't run out of retries.
2448 */
2449 if (atomic_read(&fcport->state) != FCS_ONLINE &&
2450 fcport->login_retry) {
2451
2452 if (fcport->flags & FCF_FABRIC_DEVICE) {
2453 if (fcport->flags &
2454 FCF_TAPE_PRESENT)
2455 ha->isp_ops->fabric_logout(
2456 ha, fcport->loop_id,
2457 fcport->d_id.b.domain,
2458 fcport->d_id.b.area,
2459 fcport->d_id.b.al_pa);
2460 status = qla2x00_fabric_login(
2461 ha, fcport, &next_loopid);
2462 } else
2463 status =
2464 qla2x00_local_device_login(
2465 ha, fcport);
2466
2467 fcport->login_retry--;
2468 if (status == QLA_SUCCESS) {
2469 fcport->old_loop_id = fcport->loop_id;
2470
2471 DEBUG(printk("scsi(%ld): port login OK: logged in ID 0x%x\n",
2472 ha->host_no, fcport->loop_id));
2473
2474 qla2x00_update_fcport(ha,
2475 fcport);
2476 } else if (status == 1) {
2477 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
2478 /* retry the login again */
2479 DEBUG(printk("scsi(%ld): Retrying %d login again loop_id 0x%x\n",
2480 ha->host_no,
2481 fcport->login_retry, fcport->loop_id));
2482 } else {
2483 fcport->login_retry = 0;
2484 }
2485 if (fcport->login_retry == 0)
2486 fcport->loop_id = FC_NO_LOOP_ID;
2487 }
2488 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2489 break;
2490 }
2491 DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
2492 ha->host_no));
2493 }
2494
2495 if ((test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags)) &&
2496 atomic_read(&ha->loop_state) != LOOP_DOWN) {
2497
2498 clear_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags);
2499 DEBUG(printk("scsi(%ld): qla2x00_login_retry()\n",
2500 ha->host_no));
2501
2502 set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
2503
2504 DEBUG(printk("scsi(%ld): qla2x00_login_retry - end\n",
2505 ha->host_no));
2506 }
2507
2508 if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
2509
2510 DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
2511 ha->host_no));
2512
2513 if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
2514 &ha->dpc_flags))) {
2515
2516 rval = qla2x00_loop_resync(ha);
2517
2518 clear_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags);
2519 }
2520
2521 DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
2522 ha->host_no));
2523 }
2524
2525 if (test_and_clear_bit(FCPORT_RESCAN_NEEDED, &ha->dpc_flags)) {
2526
2527 DEBUG(printk("scsi(%ld): Rescan flagged fcports...\n",
2528 ha->host_no));
2529
2530 qla2x00_rescan_fcports(ha);
2531
2532 DEBUG(printk("scsi(%ld): Rescan flagged fcports..."
2533 "end.\n",
2534 ha->host_no));
2535 }
2536
2537 if (!ha->interrupts_on)
2538 ha->isp_ops->enable_intrs(ha);
2539
2540 if (test_and_clear_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags))
2541 ha->isp_ops->beacon_blink(ha);
2542
2543 qla2x00_do_dpc_all_vps(ha);
2544
2545 ha->dpc_active = 0;
2546 } /* End of while(1) */
2547
2548 DEBUG(printk("scsi(%ld): DPC handler exiting\n", ha->host_no));
2549
2550 /*
2551 * Make sure that nobody tries to wake us up again.
2552 */
2553 ha->dpc_active = 0;
2554
2555 return 0;
2556 }
2557
2558 void
2559 qla2xxx_wake_dpc(scsi_qla_host_t *ha)
2560 {
2561 if (ha->dpc_thread)
2562 wake_up_process(ha->dpc_thread);
2563 }
2564
2565 /*
2566 * qla2x00_rst_aen
2567 * Processes asynchronous reset.
2568 *
2569 * Input:
2570 * ha = adapter block pointer.
2571 */
2572 static void
2573 qla2x00_rst_aen(scsi_qla_host_t *ha)
2574 {
2575 if (ha->flags.online && !ha->flags.reset_active &&
2576 !atomic_read(&ha->loop_down_timer) &&
2577 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) {
2578 do {
2579 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
2580
2581 /*
2582 * Issue marker command only when we are going to start
2583 * the I/O.
2584 */
2585 ha->marker_needed = 1;
2586 } while (!atomic_read(&ha->loop_down_timer) &&
2587 (test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags)));
2588 }
2589 }
2590
2591 static void
2592 qla2x00_sp_free_dma(scsi_qla_host_t *ha, srb_t *sp)
2593 {
2594 struct scsi_cmnd *cmd = sp->cmd;
2595
2596 if (sp->flags & SRB_DMA_VALID) {
2597 scsi_dma_unmap(cmd);
2598 sp->flags &= ~SRB_DMA_VALID;
2599 }
2600 CMD_SP(cmd) = NULL;
2601 }
2602
2603 void
2604 qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *sp)
2605 {
2606 struct scsi_cmnd *cmd = sp->cmd;
2607
2608 qla2x00_sp_free_dma(ha, sp);
2609
2610 mempool_free(sp, ha->srb_mempool);
2611
2612 cmd->scsi_done(cmd);
2613 }
2614
2615 /**************************************************************************
2616 * qla2x00_timer
2617 *
2618 * Description:
2619 * One second timer
2620 *
2621 * Context: Interrupt
2622 ***************************************************************************/
2623 void
2624 qla2x00_timer(scsi_qla_host_t *ha)
2625 {
2626 unsigned long cpu_flags = 0;
2627 fc_port_t *fcport;
2628 int start_dpc = 0;
2629 int index;
2630 srb_t *sp;
2631 int t;
2632 scsi_qla_host_t *pha = to_qla_parent(ha);
2633
2634 /*
2635 * Ports - Port down timer.
2636 *
2637 * Whenever, a port is in the LOST state we start decrementing its port
2638 * down timer every second until it reaches zero. Once it reaches zero
2639 * the port it marked DEAD.
2640 */
2641 t = 0;
2642 list_for_each_entry(fcport, &ha->fcports, list) {
2643 if (fcport->port_type != FCT_TARGET)
2644 continue;
2645
2646 if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
2647
2648 if (atomic_read(&fcport->port_down_timer) == 0)
2649 continue;
2650
2651 if (atomic_dec_and_test(&fcport->port_down_timer) != 0)
2652 atomic_set(&fcport->state, FCS_DEVICE_DEAD);
2653
2654 DEBUG(printk("scsi(%ld): fcport-%d - port retry count: "
2655 "%d remaining\n",
2656 ha->host_no,
2657 t, atomic_read(&fcport->port_down_timer)));
2658 }
2659 t++;
2660 } /* End of for fcport */
2661
2662
2663 /* Loop down handler. */
2664 if (atomic_read(&ha->loop_down_timer) > 0 &&
2665 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags)) && ha->flags.online) {
2666
2667 if (atomic_read(&ha->loop_down_timer) ==
2668 ha->loop_down_abort_time) {
2669
2670 DEBUG(printk("scsi(%ld): Loop Down - aborting the "
2671 "queues before time expire\n",
2672 ha->host_no));
2673
2674 if (!IS_QLA2100(ha) && ha->link_down_timeout)
2675 atomic_set(&ha->loop_state, LOOP_DEAD);
2676
2677 /* Schedule an ISP abort to return any tape commands. */
2678 /* NPIV - scan physical port only */
2679 if (!ha->parent) {
2680 spin_lock_irqsave(&ha->hardware_lock,
2681 cpu_flags);
2682 for (index = 1;
2683 index < MAX_OUTSTANDING_COMMANDS;
2684 index++) {
2685 fc_port_t *sfcp;
2686
2687 sp = ha->outstanding_cmds[index];
2688 if (!sp)
2689 continue;
2690 sfcp = sp->fcport;
2691 if (!(sfcp->flags & FCF_TAPE_PRESENT))
2692 continue;
2693
2694 set_bit(ISP_ABORT_NEEDED,
2695 &ha->dpc_flags);
2696 break;
2697 }
2698 spin_unlock_irqrestore(&ha->hardware_lock,
2699 cpu_flags);
2700 }
2701 set_bit(ABORT_QUEUES_NEEDED, &ha->dpc_flags);
2702 start_dpc++;
2703 }
2704
2705 /* if the loop has been down for 4 minutes, reinit adapter */
2706 if (atomic_dec_and_test(&ha->loop_down_timer) != 0) {
2707 DEBUG(printk("scsi(%ld): Loop down exceed 4 mins - "
2708 "restarting queues.\n",
2709 ha->host_no));
2710
2711 set_bit(RESTART_QUEUES_NEEDED, &ha->dpc_flags);
2712 start_dpc++;
2713
2714 if (!(ha->device_flags & DFLG_NO_CABLE)) {
2715 DEBUG(printk("scsi(%ld): Loop down - "
2716 "aborting ISP.\n",
2717 ha->host_no));
2718 qla_printk(KERN_WARNING, ha,
2719 "Loop down - aborting ISP.\n");
2720
2721 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2722 }
2723 }
2724 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
2725 ha->host_no,
2726 atomic_read(&ha->loop_down_timer)));
2727 }
2728
2729 /* Check if beacon LED needs to be blinked */
2730 if (ha->beacon_blink_led == 1) {
2731 set_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags);
2732 start_dpc++;
2733 }
2734
2735 /* Schedule the DPC routine if needed */
2736 if ((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags) ||
2737 test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) ||
2738 test_bit(LOOP_RESET_NEEDED, &ha->dpc_flags) ||
2739 test_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags) ||
2740 start_dpc ||
2741 test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags) ||
2742 test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) ||
2743 test_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags) ||
2744 test_bit(VP_DPC_NEEDED, &ha->dpc_flags) ||
2745 test_bit(RELOGIN_NEEDED, &ha->dpc_flags)))
2746 qla2xxx_wake_dpc(pha);
2747
2748 qla2x00_restart_timer(ha, WATCH_INTERVAL);
2749 }
2750
2751 /* Firmware interface routines. */
2752
2753 #define FW_BLOBS 6
2754 #define FW_ISP21XX 0
2755 #define FW_ISP22XX 1
2756 #define FW_ISP2300 2
2757 #define FW_ISP2322 3
2758 #define FW_ISP24XX 4
2759 #define FW_ISP25XX 5
2760
2761 #define FW_FILE_ISP21XX "ql2100_fw.bin"
2762 #define FW_FILE_ISP22XX "ql2200_fw.bin"
2763 #define FW_FILE_ISP2300 "ql2300_fw.bin"
2764 #define FW_FILE_ISP2322 "ql2322_fw.bin"
2765 #define FW_FILE_ISP24XX "ql2400_fw.bin"
2766 #define FW_FILE_ISP25XX "ql2500_fw.bin"
2767
2768 static DECLARE_MUTEX(qla_fw_lock);
2769
2770 static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
2771 { .name = FW_FILE_ISP21XX, .segs = { 0x1000, 0 }, },
2772 { .name = FW_FILE_ISP22XX, .segs = { 0x1000, 0 }, },
2773 { .name = FW_FILE_ISP2300, .segs = { 0x800, 0 }, },
2774 { .name = FW_FILE_ISP2322, .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
2775 { .name = FW_FILE_ISP24XX, },
2776 { .name = FW_FILE_ISP25XX, },
2777 };
2778
2779 struct fw_blob *
2780 qla2x00_request_firmware(scsi_qla_host_t *ha)
2781 {
2782 struct fw_blob *blob;
2783
2784 blob = NULL;
2785 if (IS_QLA2100(ha)) {
2786 blob = &qla_fw_blobs[FW_ISP21XX];
2787 } else if (IS_QLA2200(ha)) {
2788 blob = &qla_fw_blobs[FW_ISP22XX];
2789 } else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
2790 blob = &qla_fw_blobs[FW_ISP2300];
2791 } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
2792 blob = &qla_fw_blobs[FW_ISP2322];
2793 } else if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
2794 blob = &qla_fw_blobs[FW_ISP24XX];
2795 } else if (IS_QLA25XX(ha)) {
2796 blob = &qla_fw_blobs[FW_ISP25XX];
2797 }
2798
2799 down(&qla_fw_lock);
2800 if (blob->fw)
2801 goto out;
2802
2803 if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
2804 DEBUG2(printk("scsi(%ld): Failed to load firmware image "
2805 "(%s).\n", ha->host_no, blob->name));
2806 blob->fw = NULL;
2807 blob = NULL;
2808 goto out;
2809 }
2810
2811 out:
2812 up(&qla_fw_lock);
2813 return blob;
2814 }
2815
2816 static void
2817 qla2x00_release_firmware(void)
2818 {
2819 int idx;
2820
2821 down(&qla_fw_lock);
2822 for (idx = 0; idx < FW_BLOBS; idx++)
2823 if (qla_fw_blobs[idx].fw)
2824 release_firmware(qla_fw_blobs[idx].fw);
2825 up(&qla_fw_lock);
2826 }
2827
2828 static pci_ers_result_t
2829 qla2xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
2830 {
2831 switch (state) {
2832 case pci_channel_io_normal:
2833 return PCI_ERS_RESULT_CAN_RECOVER;
2834 case pci_channel_io_frozen:
2835 pci_disable_device(pdev);
2836 return PCI_ERS_RESULT_NEED_RESET;
2837 case pci_channel_io_perm_failure:
2838 qla2x00_remove_one(pdev);
2839 return PCI_ERS_RESULT_DISCONNECT;
2840 }
2841 return PCI_ERS_RESULT_NEED_RESET;
2842 }
2843
2844 static pci_ers_result_t
2845 qla2xxx_pci_mmio_enabled(struct pci_dev *pdev)
2846 {
2847 int risc_paused = 0;
2848 uint32_t stat;
2849 unsigned long flags;
2850 scsi_qla_host_t *ha = pci_get_drvdata(pdev);
2851 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
2852 struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
2853
2854 spin_lock_irqsave(&ha->hardware_lock, flags);
2855 if (IS_QLA2100(ha) || IS_QLA2200(ha)){
2856 stat = RD_REG_DWORD(&reg->hccr);
2857 if (stat & HCCR_RISC_PAUSE)
2858 risc_paused = 1;
2859 } else if (IS_QLA23XX(ha)) {
2860 stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
2861 if (stat & HSR_RISC_PAUSED)
2862 risc_paused = 1;
2863 } else if (IS_FWI2_CAPABLE(ha)) {
2864 stat = RD_REG_DWORD(&reg24->host_status);
2865 if (stat & HSRX_RISC_PAUSED)
2866 risc_paused = 1;
2867 }
2868 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2869
2870 if (risc_paused) {
2871 qla_printk(KERN_INFO, ha, "RISC paused -- mmio_enabled, "
2872 "Dumping firmware!\n");
2873 ha->isp_ops->fw_dump(ha, 0);
2874
2875 return PCI_ERS_RESULT_NEED_RESET;
2876 } else
2877 return PCI_ERS_RESULT_RECOVERED;
2878 }
2879
2880 static pci_ers_result_t
2881 qla2xxx_pci_slot_reset(struct pci_dev *pdev)
2882 {
2883 pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
2884 scsi_qla_host_t *ha = pci_get_drvdata(pdev);
2885 int rc;
2886
2887 if (ha->mem_only)
2888 rc = pci_enable_device_mem(pdev);
2889 else
2890 rc = pci_enable_device(pdev);
2891
2892 if (rc) {
2893 qla_printk(KERN_WARNING, ha,
2894 "Can't re-enable PCI device after reset.\n");
2895
2896 return ret;
2897 }
2898 pci_set_master(pdev);
2899
2900 if (ha->isp_ops->pci_config(ha))
2901 return ret;
2902
2903 set_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2904 if (qla2x00_abort_isp(ha)== QLA_SUCCESS)
2905 ret = PCI_ERS_RESULT_RECOVERED;
2906 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2907
2908 return ret;
2909 }
2910
2911 static void
2912 qla2xxx_pci_resume(struct pci_dev *pdev)
2913 {
2914 scsi_qla_host_t *ha = pci_get_drvdata(pdev);
2915 int ret;
2916
2917 ret = qla2x00_wait_for_hba_online(ha);
2918 if (ret != QLA_SUCCESS) {
2919 qla_printk(KERN_ERR, ha,
2920 "the device failed to resume I/O "
2921 "from slot/link_reset");
2922 }
2923 pci_cleanup_aer_uncorrect_error_status(pdev);
2924 }
2925
2926 static struct pci_error_handlers qla2xxx_err_handler = {
2927 .error_detected = qla2xxx_pci_error_detected,
2928 .mmio_enabled = qla2xxx_pci_mmio_enabled,
2929 .slot_reset = qla2xxx_pci_slot_reset,
2930 .resume = qla2xxx_pci_resume,
2931 };
2932
2933 static struct pci_device_id qla2xxx_pci_tbl[] = {
2934 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
2935 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
2936 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
2937 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
2938 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
2939 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
2940 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
2941 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
2942 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
2943 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
2944 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
2945 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2532) },
2946 { 0 },
2947 };
2948 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
2949
2950 static struct pci_driver qla2xxx_pci_driver = {
2951 .name = QLA2XXX_DRIVER_NAME,
2952 .driver = {
2953 .owner = THIS_MODULE,
2954 },
2955 .id_table = qla2xxx_pci_tbl,
2956 .probe = qla2x00_probe_one,
2957 .remove = qla2x00_remove_one,
2958 .err_handler = &qla2xxx_err_handler,
2959 };
2960
2961 /**
2962 * qla2x00_module_init - Module initialization.
2963 **/
2964 static int __init
2965 qla2x00_module_init(void)
2966 {
2967 int ret = 0;
2968
2969 /* Allocate cache for SRBs. */
2970 srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
2971 SLAB_HWCACHE_ALIGN, NULL);
2972 if (srb_cachep == NULL) {
2973 printk(KERN_ERR
2974 "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
2975 return -ENOMEM;
2976 }
2977
2978 /* Derive version string. */
2979 strcpy(qla2x00_version_str, QLA2XXX_VERSION);
2980 if (ql2xextended_error_logging)
2981 strcat(qla2x00_version_str, "-debug");
2982
2983 qla2xxx_transport_template =
2984 fc_attach_transport(&qla2xxx_transport_functions);
2985 if (!qla2xxx_transport_template) {
2986 kmem_cache_destroy(srb_cachep);
2987 return -ENODEV;
2988 }
2989 qla2xxx_transport_vport_template =
2990 fc_attach_transport(&qla2xxx_transport_vport_functions);
2991 if (!qla2xxx_transport_vport_template) {
2992 kmem_cache_destroy(srb_cachep);
2993 fc_release_transport(qla2xxx_transport_template);
2994 return -ENODEV;
2995 }
2996
2997 printk(KERN_INFO "QLogic Fibre Channel HBA Driver\n");
2998 ret = pci_register_driver(&qla2xxx_pci_driver);
2999 if (ret) {
3000 kmem_cache_destroy(srb_cachep);
3001 fc_release_transport(qla2xxx_transport_template);
3002 fc_release_transport(qla2xxx_transport_vport_template);
3003 }
3004 return ret;
3005 }
3006
3007 /**
3008 * qla2x00_module_exit - Module cleanup.
3009 **/
3010 static void __exit
3011 qla2x00_module_exit(void)
3012 {
3013 pci_unregister_driver(&qla2xxx_pci_driver);
3014 qla2x00_release_firmware();
3015 kmem_cache_destroy(srb_cachep);
3016 fc_release_transport(qla2xxx_transport_template);
3017 fc_release_transport(qla2xxx_transport_vport_template);
3018 }
3019
3020 module_init(qla2x00_module_init);
3021 module_exit(qla2x00_module_exit);
3022
3023 MODULE_AUTHOR("QLogic Corporation");
3024 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
3025 MODULE_LICENSE("GPL");
3026 MODULE_VERSION(QLA2XXX_VERSION);
3027 MODULE_FIRMWARE(FW_FILE_ISP21XX);
3028 MODULE_FIRMWARE(FW_FILE_ISP22XX);
3029 MODULE_FIRMWARE(FW_FILE_ISP2300);
3030 MODULE_FIRMWARE(FW_FILE_ISP2322);
3031 MODULE_FIRMWARE(FW_FILE_ISP24XX);
WRT350N Kernel Patches