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[SCSI] qla2xxx: Fix for 32-bit platforms with 64-bit resources.
[GitHub/mt8127/android_kernel_alcatel_ttab.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_loop_reset(scsi_qla_host_t *ha);
109 static int qla2x00_device_reset(scsi_qla_host_t *, fc_port_t *);
110
111 static int qla2x00_change_queue_depth(struct scsi_device *, int);
112 static int qla2x00_change_queue_type(struct scsi_device *, int);
113
114 struct scsi_host_template qla2x00_driver_template = {
115 .module = THIS_MODULE,
116 .name = QLA2XXX_DRIVER_NAME,
117 .queuecommand = qla2x00_queuecommand,
118
119 .eh_abort_handler = qla2xxx_eh_abort,
120 .eh_device_reset_handler = qla2xxx_eh_device_reset,
121 .eh_bus_reset_handler = qla2xxx_eh_bus_reset,
122 .eh_host_reset_handler = qla2xxx_eh_host_reset,
123
124 .slave_configure = qla2xxx_slave_configure,
125
126 .slave_alloc = qla2xxx_slave_alloc,
127 .slave_destroy = qla2xxx_slave_destroy,
128 .scan_finished = qla2xxx_scan_finished,
129 .scan_start = qla2xxx_scan_start,
130 .change_queue_depth = qla2x00_change_queue_depth,
131 .change_queue_type = qla2x00_change_queue_type,
132 .this_id = -1,
133 .cmd_per_lun = 3,
134 .use_clustering = ENABLE_CLUSTERING,
135 .use_sg_chaining = ENABLE_SG_CHAINING,
136 .sg_tablesize = SG_ALL,
137
138 /*
139 * The RISC allows for each command to transfer (2^32-1) bytes of data,
140 * which equates to 0x800000 sectors.
141 */
142 .max_sectors = 0xFFFF,
143 .shost_attrs = qla2x00_host_attrs,
144 };
145
146 struct scsi_host_template qla24xx_driver_template = {
147 .module = THIS_MODULE,
148 .name = QLA2XXX_DRIVER_NAME,
149 .queuecommand = qla24xx_queuecommand,
150
151 .eh_abort_handler = qla2xxx_eh_abort,
152 .eh_device_reset_handler = qla2xxx_eh_device_reset,
153 .eh_bus_reset_handler = qla2xxx_eh_bus_reset,
154 .eh_host_reset_handler = qla2xxx_eh_host_reset,
155
156 .slave_configure = qla2xxx_slave_configure,
157
158 .slave_alloc = qla2xxx_slave_alloc,
159 .slave_destroy = qla2xxx_slave_destroy,
160 .scan_finished = qla2xxx_scan_finished,
161 .scan_start = qla2xxx_scan_start,
162 .change_queue_depth = qla2x00_change_queue_depth,
163 .change_queue_type = qla2x00_change_queue_type,
164 .this_id = -1,
165 .cmd_per_lun = 3,
166 .use_clustering = ENABLE_CLUSTERING,
167 .use_sg_chaining = ENABLE_SG_CHAINING,
168 .sg_tablesize = SG_ALL,
169
170 .max_sectors = 0xFFFF,
171 .shost_attrs = qla2x00_host_attrs,
172 };
173
174 static struct scsi_transport_template *qla2xxx_transport_template = NULL;
175 struct scsi_transport_template *qla2xxx_transport_vport_template = NULL;
176
177 /* TODO Convert to inlines
178 *
179 * Timer routines
180 */
181
182 void qla2x00_timer(scsi_qla_host_t *);
183
184 __inline__ void qla2x00_start_timer(scsi_qla_host_t *,
185 void *, unsigned long);
186 static __inline__ void qla2x00_restart_timer(scsi_qla_host_t *, unsigned long);
187 __inline__ void qla2x00_stop_timer(scsi_qla_host_t *);
188
189 __inline__ void
190 qla2x00_start_timer(scsi_qla_host_t *ha, void *func, unsigned long interval)
191 {
192 init_timer(&ha->timer);
193 ha->timer.expires = jiffies + interval * HZ;
194 ha->timer.data = (unsigned long)ha;
195 ha->timer.function = (void (*)(unsigned long))func;
196 add_timer(&ha->timer);
197 ha->timer_active = 1;
198 }
199
200 static inline void
201 qla2x00_restart_timer(scsi_qla_host_t *ha, unsigned long interval)
202 {
203 mod_timer(&ha->timer, jiffies + interval * HZ);
204 }
205
206 __inline__ void
207 qla2x00_stop_timer(scsi_qla_host_t *ha)
208 {
209 del_timer_sync(&ha->timer);
210 ha->timer_active = 0;
211 }
212
213 static int qla2x00_do_dpc(void *data);
214
215 static void qla2x00_rst_aen(scsi_qla_host_t *);
216
217 uint8_t qla2x00_mem_alloc(scsi_qla_host_t *);
218 void qla2x00_mem_free(scsi_qla_host_t *ha);
219 static int qla2x00_allocate_sp_pool( scsi_qla_host_t *ha);
220 static void qla2x00_free_sp_pool(scsi_qla_host_t *ha);
221 static void qla2x00_sp_free_dma(scsi_qla_host_t *, srb_t *);
222 void qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *);
223
224 /* -------------------------------------------------------------------------- */
225
226 static char *
227 qla2x00_pci_info_str(struct scsi_qla_host *ha, char *str)
228 {
229 static char *pci_bus_modes[] = {
230 "33", "66", "100", "133",
231 };
232 uint16_t pci_bus;
233
234 strcpy(str, "PCI");
235 pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
236 if (pci_bus) {
237 strcat(str, "-X (");
238 strcat(str, pci_bus_modes[pci_bus]);
239 } else {
240 pci_bus = (ha->pci_attr & BIT_8) >> 8;
241 strcat(str, " (");
242 strcat(str, pci_bus_modes[pci_bus]);
243 }
244 strcat(str, " MHz)");
245
246 return (str);
247 }
248
249 static char *
250 qla24xx_pci_info_str(struct scsi_qla_host *ha, char *str)
251 {
252 static char *pci_bus_modes[] = { "33", "66", "100", "133", };
253 uint32_t pci_bus;
254 int pcie_reg;
255
256 pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
257 if (pcie_reg) {
258 char lwstr[6];
259 uint16_t pcie_lstat, lspeed, lwidth;
260
261 pcie_reg += 0x12;
262 pci_read_config_word(ha->pdev, pcie_reg, &pcie_lstat);
263 lspeed = pcie_lstat & (BIT_0 | BIT_1 | BIT_2 | BIT_3);
264 lwidth = (pcie_lstat &
265 (BIT_4 | BIT_5 | BIT_6 | BIT_7 | BIT_8 | BIT_9)) >> 4;
266
267 strcpy(str, "PCIe (");
268 if (lspeed == 1)
269 strcat(str, "2.5Gb/s ");
270 else if (lspeed == 2)
271 strcat(str, "5.0Gb/s ");
272 else
273 strcat(str, "<unknown> ");
274 snprintf(lwstr, sizeof(lwstr), "x%d)", lwidth);
275 strcat(str, lwstr);
276
277 return str;
278 }
279
280 strcpy(str, "PCI");
281 pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
282 if (pci_bus == 0 || pci_bus == 8) {
283 strcat(str, " (");
284 strcat(str, pci_bus_modes[pci_bus >> 3]);
285 } else {
286 strcat(str, "-X ");
287 if (pci_bus & BIT_2)
288 strcat(str, "Mode 2");
289 else
290 strcat(str, "Mode 1");
291 strcat(str, " (");
292 strcat(str, pci_bus_modes[pci_bus & ~BIT_2]);
293 }
294 strcat(str, " MHz)");
295
296 return str;
297 }
298
299 static char *
300 qla2x00_fw_version_str(struct scsi_qla_host *ha, char *str)
301 {
302 char un_str[10];
303
304 sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
305 ha->fw_minor_version,
306 ha->fw_subminor_version);
307
308 if (ha->fw_attributes & BIT_9) {
309 strcat(str, "FLX");
310 return (str);
311 }
312
313 switch (ha->fw_attributes & 0xFF) {
314 case 0x7:
315 strcat(str, "EF");
316 break;
317 case 0x17:
318 strcat(str, "TP");
319 break;
320 case 0x37:
321 strcat(str, "IP");
322 break;
323 case 0x77:
324 strcat(str, "VI");
325 break;
326 default:
327 sprintf(un_str, "(%x)", ha->fw_attributes);
328 strcat(str, un_str);
329 break;
330 }
331 if (ha->fw_attributes & 0x100)
332 strcat(str, "X");
333
334 return (str);
335 }
336
337 static char *
338 qla24xx_fw_version_str(struct scsi_qla_host *ha, char *str)
339 {
340 sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
341 ha->fw_minor_version,
342 ha->fw_subminor_version);
343
344 if (ha->fw_attributes & BIT_0)
345 strcat(str, "[Class 2] ");
346 if (ha->fw_attributes & BIT_1)
347 strcat(str, "[IP] ");
348 if (ha->fw_attributes & BIT_2)
349 strcat(str, "[Multi-ID] ");
350 if (ha->fw_attributes & BIT_3)
351 strcat(str, "[SB-2] ");
352 if (ha->fw_attributes & BIT_4)
353 strcat(str, "[T10 CRC] ");
354 if (ha->fw_attributes & BIT_5)
355 strcat(str, "[VI] ");
356 if (ha->fw_attributes & BIT_13)
357 strcat(str, "[Experimental]");
358 return str;
359 }
360
361 static inline srb_t *
362 qla2x00_get_new_sp(scsi_qla_host_t *ha, fc_port_t *fcport,
363 struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
364 {
365 srb_t *sp;
366
367 sp = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
368 if (!sp)
369 return sp;
370
371 sp->ha = ha;
372 sp->fcport = fcport;
373 sp->cmd = cmd;
374 sp->flags = 0;
375 CMD_SP(cmd) = (void *)sp;
376 cmd->scsi_done = done;
377
378 return sp;
379 }
380
381 static int
382 qla2x00_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
383 {
384 scsi_qla_host_t *ha = shost_priv(cmd->device->host);
385 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
386 struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
387 srb_t *sp;
388 int rval;
389
390 if (unlikely(pci_channel_offline(ha->pdev))) {
391 cmd->result = DID_REQUEUE << 16;
392 goto qc_fail_command;
393 }
394
395 rval = fc_remote_port_chkready(rport);
396 if (rval) {
397 cmd->result = rval;
398 goto qc_fail_command;
399 }
400
401 /* Close window on fcport/rport state-transitioning. */
402 if (!*(fc_port_t **)rport->dd_data) {
403 cmd->result = DID_IMM_RETRY << 16;
404 goto qc_fail_command;
405 }
406
407 if (atomic_read(&fcport->state) != FCS_ONLINE) {
408 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
409 atomic_read(&ha->loop_state) == LOOP_DEAD) {
410 cmd->result = DID_NO_CONNECT << 16;
411 goto qc_fail_command;
412 }
413 goto qc_host_busy;
414 }
415
416 spin_unlock_irq(ha->host->host_lock);
417
418 sp = qla2x00_get_new_sp(ha, fcport, cmd, done);
419 if (!sp)
420 goto qc_host_busy_lock;
421
422 rval = qla2x00_start_scsi(sp);
423 if (rval != QLA_SUCCESS)
424 goto qc_host_busy_free_sp;
425
426 spin_lock_irq(ha->host->host_lock);
427
428 return 0;
429
430 qc_host_busy_free_sp:
431 qla2x00_sp_free_dma(ha, sp);
432 mempool_free(sp, ha->srb_mempool);
433
434 qc_host_busy_lock:
435 spin_lock_irq(ha->host->host_lock);
436
437 qc_host_busy:
438 return SCSI_MLQUEUE_HOST_BUSY;
439
440 qc_fail_command:
441 done(cmd);
442
443 return 0;
444 }
445
446
447 static int
448 qla24xx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
449 {
450 scsi_qla_host_t *ha = shost_priv(cmd->device->host);
451 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
452 struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
453 srb_t *sp;
454 int rval;
455 scsi_qla_host_t *pha = to_qla_parent(ha);
456
457 if (unlikely(pci_channel_offline(ha->pdev))) {
458 cmd->result = DID_REQUEUE << 16;
459 goto qc24_fail_command;
460 }
461
462 rval = fc_remote_port_chkready(rport);
463 if (rval) {
464 cmd->result = rval;
465 goto qc24_fail_command;
466 }
467
468 /* Close window on fcport/rport state-transitioning. */
469 if (!*(fc_port_t **)rport->dd_data) {
470 cmd->result = DID_IMM_RETRY << 16;
471 goto qc24_fail_command;
472 }
473
474 if (atomic_read(&fcport->state) != FCS_ONLINE) {
475 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
476 atomic_read(&pha->loop_state) == LOOP_DEAD) {
477 cmd->result = DID_NO_CONNECT << 16;
478 goto qc24_fail_command;
479 }
480 goto qc24_host_busy;
481 }
482
483 spin_unlock_irq(ha->host->host_lock);
484
485 sp = qla2x00_get_new_sp(pha, fcport, cmd, done);
486 if (!sp)
487 goto qc24_host_busy_lock;
488
489 rval = qla24xx_start_scsi(sp);
490 if (rval != QLA_SUCCESS)
491 goto qc24_host_busy_free_sp;
492
493 spin_lock_irq(ha->host->host_lock);
494
495 return 0;
496
497 qc24_host_busy_free_sp:
498 qla2x00_sp_free_dma(pha, sp);
499 mempool_free(sp, pha->srb_mempool);
500
501 qc24_host_busy_lock:
502 spin_lock_irq(ha->host->host_lock);
503
504 qc24_host_busy:
505 return SCSI_MLQUEUE_HOST_BUSY;
506
507 qc24_fail_command:
508 done(cmd);
509
510 return 0;
511 }
512
513
514 /*
515 * qla2x00_eh_wait_on_command
516 * Waits for the command to be returned by the Firmware for some
517 * max time.
518 *
519 * Input:
520 * ha = actual ha whose done queue will contain the command
521 * returned by firmware.
522 * cmd = Scsi Command to wait on.
523 * flag = Abort/Reset(Bus or Device Reset)
524 *
525 * Return:
526 * Not Found : 0
527 * Found : 1
528 */
529 static int
530 qla2x00_eh_wait_on_command(scsi_qla_host_t *ha, struct scsi_cmnd *cmd)
531 {
532 #define ABORT_POLLING_PERIOD 1000
533 #define ABORT_WAIT_ITER ((10 * 1000) / (ABORT_POLLING_PERIOD))
534 unsigned long wait_iter = ABORT_WAIT_ITER;
535 int ret = QLA_SUCCESS;
536
537 while (CMD_SP(cmd)) {
538 msleep(ABORT_POLLING_PERIOD);
539
540 if (--wait_iter)
541 break;
542 }
543 if (CMD_SP(cmd))
544 ret = QLA_FUNCTION_FAILED;
545
546 return ret;
547 }
548
549 /*
550 * qla2x00_wait_for_hba_online
551 * Wait till the HBA is online after going through
552 * <= MAX_RETRIES_OF_ISP_ABORT or
553 * finally HBA is disabled ie marked offline
554 *
555 * Input:
556 * ha - pointer to host adapter structure
557 *
558 * Note:
559 * Does context switching-Release SPIN_LOCK
560 * (if any) before calling this routine.
561 *
562 * Return:
563 * Success (Adapter is online) : 0
564 * Failed (Adapter is offline/disabled) : 1
565 */
566 int
567 qla2x00_wait_for_hba_online(scsi_qla_host_t *ha)
568 {
569 int return_status;
570 unsigned long wait_online;
571 scsi_qla_host_t *pha = to_qla_parent(ha);
572
573 wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
574 while (((test_bit(ISP_ABORT_NEEDED, &pha->dpc_flags)) ||
575 test_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags) ||
576 test_bit(ISP_ABORT_RETRY, &pha->dpc_flags) ||
577 pha->dpc_active) && time_before(jiffies, wait_online)) {
578
579 msleep(1000);
580 }
581 if (pha->flags.online)
582 return_status = QLA_SUCCESS;
583 else
584 return_status = QLA_FUNCTION_FAILED;
585
586 DEBUG2(printk("%s return_status=%d\n",__func__,return_status));
587
588 return (return_status);
589 }
590
591 /*
592 * qla2x00_wait_for_loop_ready
593 * Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
594 * to be in LOOP_READY state.
595 * Input:
596 * ha - pointer to host adapter structure
597 *
598 * Note:
599 * Does context switching-Release SPIN_LOCK
600 * (if any) before calling this routine.
601 *
602 *
603 * Return:
604 * Success (LOOP_READY) : 0
605 * Failed (LOOP_NOT_READY) : 1
606 */
607 static inline int
608 qla2x00_wait_for_loop_ready(scsi_qla_host_t *ha)
609 {
610 int return_status = QLA_SUCCESS;
611 unsigned long loop_timeout ;
612 scsi_qla_host_t *pha = to_qla_parent(ha);
613
614 /* wait for 5 min at the max for loop to be ready */
615 loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ);
616
617 while ((!atomic_read(&pha->loop_down_timer) &&
618 atomic_read(&pha->loop_state) == LOOP_DOWN) ||
619 atomic_read(&pha->loop_state) != LOOP_READY) {
620 if (atomic_read(&pha->loop_state) == LOOP_DEAD) {
621 return_status = QLA_FUNCTION_FAILED;
622 break;
623 }
624 msleep(1000);
625 if (time_after_eq(jiffies, loop_timeout)) {
626 return_status = QLA_FUNCTION_FAILED;
627 break;
628 }
629 }
630 return (return_status);
631 }
632
633 static void
634 qla2x00_block_error_handler(struct scsi_cmnd *cmnd)
635 {
636 struct Scsi_Host *shost = cmnd->device->host;
637 struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device));
638 unsigned long flags;
639
640 spin_lock_irqsave(shost->host_lock, flags);
641 while (rport->port_state == FC_PORTSTATE_BLOCKED) {
642 spin_unlock_irqrestore(shost->host_lock, flags);
643 msleep(1000);
644 spin_lock_irqsave(shost->host_lock, flags);
645 }
646 spin_unlock_irqrestore(shost->host_lock, flags);
647 return;
648 }
649
650 /**************************************************************************
651 * qla2xxx_eh_abort
652 *
653 * Description:
654 * The abort function will abort the specified command.
655 *
656 * Input:
657 * cmd = Linux SCSI command packet to be aborted.
658 *
659 * Returns:
660 * Either SUCCESS or FAILED.
661 *
662 * Note:
663 * Only return FAILED if command not returned by firmware.
664 **************************************************************************/
665 static int
666 qla2xxx_eh_abort(struct scsi_cmnd *cmd)
667 {
668 scsi_qla_host_t *ha = shost_priv(cmd->device->host);
669 srb_t *sp;
670 int ret, i;
671 unsigned int id, lun;
672 unsigned long serial;
673 unsigned long flags;
674 int wait = 0;
675 scsi_qla_host_t *pha = to_qla_parent(ha);
676
677 qla2x00_block_error_handler(cmd);
678
679 if (!CMD_SP(cmd))
680 return SUCCESS;
681
682 ret = SUCCESS;
683
684 id = cmd->device->id;
685 lun = cmd->device->lun;
686 serial = cmd->serial_number;
687
688 /* Check active list for command command. */
689 spin_lock_irqsave(&pha->hardware_lock, flags);
690 for (i = 1; i < MAX_OUTSTANDING_COMMANDS; i++) {
691 sp = pha->outstanding_cmds[i];
692
693 if (sp == NULL)
694 continue;
695
696 if (sp->cmd != cmd)
697 continue;
698
699 DEBUG2(printk("%s(%ld): aborting sp %p from RISC. pid=%ld.\n",
700 __func__, ha->host_no, sp, serial));
701 DEBUG3(qla2x00_print_scsi_cmd(cmd));
702
703 spin_unlock_irqrestore(&pha->hardware_lock, flags);
704 if (ha->isp_ops->abort_command(ha, sp)) {
705 DEBUG2(printk("%s(%ld): abort_command "
706 "mbx failed.\n", __func__, ha->host_no));
707 } else {
708 DEBUG3(printk("%s(%ld): abort_command "
709 "mbx success.\n", __func__, ha->host_no));
710 wait = 1;
711 }
712 spin_lock_irqsave(&pha->hardware_lock, flags);
713
714 break;
715 }
716 spin_unlock_irqrestore(&pha->hardware_lock, flags);
717
718 /* Wait for the command to be returned. */
719 if (wait) {
720 if (qla2x00_eh_wait_on_command(ha, cmd) != QLA_SUCCESS) {
721 qla_printk(KERN_ERR, ha,
722 "scsi(%ld:%d:%d): Abort handler timed out -- %lx "
723 "%x.\n", ha->host_no, id, lun, serial, ret);
724 ret = FAILED;
725 }
726 }
727
728 qla_printk(KERN_INFO, ha,
729 "scsi(%ld:%d:%d): Abort command issued -- %d %lx %x.\n",
730 ha->host_no, id, lun, wait, serial, ret);
731
732 return ret;
733 }
734
735 /**************************************************************************
736 * qla2x00_eh_wait_for_pending_target_commands
737 *
738 * Description:
739 * Waits for all the commands to come back from the specified target.
740 *
741 * Input:
742 * ha - pointer to scsi_qla_host structure.
743 * t - target
744 * Returns:
745 * Either SUCCESS or FAILED.
746 *
747 * Note:
748 **************************************************************************/
749 static int
750 qla2x00_eh_wait_for_pending_target_commands(scsi_qla_host_t *ha, unsigned int t)
751 {
752 int cnt;
753 int status;
754 srb_t *sp;
755 struct scsi_cmnd *cmd;
756 unsigned long flags;
757 scsi_qla_host_t *pha = to_qla_parent(ha);
758
759 status = 0;
760
761 /*
762 * Waiting for all commands for the designated target in the active
763 * array
764 */
765 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
766 spin_lock_irqsave(&pha->hardware_lock, flags);
767 sp = pha->outstanding_cmds[cnt];
768 if (sp) {
769 cmd = sp->cmd;
770 spin_unlock_irqrestore(&pha->hardware_lock, flags);
771 if (cmd->device->id == t &&
772 ha->vp_idx == sp->ha->vp_idx) {
773 if (!qla2x00_eh_wait_on_command(ha, cmd)) {
774 status = 1;
775 break;
776 }
777 }
778 } else {
779 spin_unlock_irqrestore(&pha->hardware_lock, flags);
780 }
781 }
782 return (status);
783 }
784
785
786 /**************************************************************************
787 * qla2xxx_eh_device_reset
788 *
789 * Description:
790 * The device reset function will reset the target and abort any
791 * executing commands.
792 *
793 * NOTE: The use of SP is undefined within this context. Do *NOT*
794 * attempt to use this value, even if you determine it is
795 * non-null.
796 *
797 * Input:
798 * cmd = Linux SCSI command packet of the command that cause the
799 * bus device reset.
800 *
801 * Returns:
802 * SUCCESS/FAILURE (defined as macro in scsi.h).
803 *
804 **************************************************************************/
805 static int
806 qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
807 {
808 scsi_qla_host_t *ha = shost_priv(cmd->device->host);
809 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
810 int ret = FAILED;
811 unsigned int id, lun;
812 unsigned long serial;
813
814 qla2x00_block_error_handler(cmd);
815
816 id = cmd->device->id;
817 lun = cmd->device->lun;
818 serial = cmd->serial_number;
819
820 if (!fcport)
821 return ret;
822
823 qla_printk(KERN_INFO, ha,
824 "scsi(%ld:%d:%d): DEVICE RESET ISSUED.\n", ha->host_no, id, lun);
825
826 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
827 goto eh_dev_reset_done;
828
829 if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
830 if (qla2x00_device_reset(ha, fcport) == 0)
831 ret = SUCCESS;
832
833 #if defined(LOGOUT_AFTER_DEVICE_RESET)
834 if (ret == SUCCESS) {
835 if (fcport->flags & FC_FABRIC_DEVICE) {
836 ha->isp_ops->fabric_logout(ha, fcport->loop_id);
837 qla2x00_mark_device_lost(ha, fcport, 0, 0);
838 }
839 }
840 #endif
841 } else {
842 DEBUG2(printk(KERN_INFO
843 "%s failed: loop not ready\n",__func__));
844 }
845
846 if (ret == FAILED) {
847 DEBUG3(printk("%s(%ld): device reset failed\n",
848 __func__, ha->host_no));
849 qla_printk(KERN_INFO, ha, "%s: device reset failed\n",
850 __func__);
851
852 goto eh_dev_reset_done;
853 }
854
855 /* Flush outstanding commands. */
856 if (qla2x00_eh_wait_for_pending_target_commands(ha, id))
857 ret = FAILED;
858 if (ret == FAILED) {
859 DEBUG3(printk("%s(%ld): failed while waiting for commands\n",
860 __func__, ha->host_no));
861 qla_printk(KERN_INFO, ha,
862 "%s: failed while waiting for commands\n", __func__);
863 } else
864 qla_printk(KERN_INFO, ha,
865 "scsi(%ld:%d:%d): DEVICE RESET SUCCEEDED.\n", ha->host_no,
866 id, lun);
867 eh_dev_reset_done:
868 return ret;
869 }
870
871 /**************************************************************************
872 * qla2x00_eh_wait_for_pending_commands
873 *
874 * Description:
875 * Waits for all the commands to come back from the specified host.
876 *
877 * Input:
878 * ha - pointer to scsi_qla_host structure.
879 *
880 * Returns:
881 * 1 : SUCCESS
882 * 0 : FAILED
883 *
884 * Note:
885 **************************************************************************/
886 static int
887 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *ha)
888 {
889 int cnt;
890 int status;
891 srb_t *sp;
892 struct scsi_cmnd *cmd;
893 unsigned long flags;
894
895 status = 1;
896
897 /*
898 * Waiting for all commands for the designated target in the active
899 * array
900 */
901 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
902 spin_lock_irqsave(&ha->hardware_lock, flags);
903 sp = ha->outstanding_cmds[cnt];
904 if (sp) {
905 cmd = sp->cmd;
906 spin_unlock_irqrestore(&ha->hardware_lock, flags);
907 status = qla2x00_eh_wait_on_command(ha, cmd);
908 if (status == 0)
909 break;
910 }
911 else {
912 spin_unlock_irqrestore(&ha->hardware_lock, flags);
913 }
914 }
915 return (status);
916 }
917
918
919 /**************************************************************************
920 * qla2xxx_eh_bus_reset
921 *
922 * Description:
923 * The bus reset function will reset the bus and abort any executing
924 * commands.
925 *
926 * Input:
927 * cmd = Linux SCSI command packet of the command that cause the
928 * bus reset.
929 *
930 * Returns:
931 * SUCCESS/FAILURE (defined as macro in scsi.h).
932 *
933 **************************************************************************/
934 static int
935 qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
936 {
937 scsi_qla_host_t *ha = shost_priv(cmd->device->host);
938 scsi_qla_host_t *pha = to_qla_parent(ha);
939 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
940 int ret = FAILED;
941 unsigned int id, lun;
942 unsigned long serial;
943
944 qla2x00_block_error_handler(cmd);
945
946 id = cmd->device->id;
947 lun = cmd->device->lun;
948 serial = cmd->serial_number;
949
950 if (!fcport)
951 return ret;
952
953 qla_printk(KERN_INFO, ha,
954 "scsi(%ld:%d:%d): LOOP RESET ISSUED.\n", ha->host_no, id, lun);
955
956 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS) {
957 DEBUG2(printk("%s failed:board disabled\n",__func__));
958 goto eh_bus_reset_done;
959 }
960
961 if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
962 if (qla2x00_loop_reset(ha) == QLA_SUCCESS)
963 ret = SUCCESS;
964 }
965 if (ret == FAILED)
966 goto eh_bus_reset_done;
967
968 /* Flush outstanding commands. */
969 if (!qla2x00_eh_wait_for_pending_commands(pha))
970 ret = FAILED;
971
972 eh_bus_reset_done:
973 qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
974 (ret == FAILED) ? "failed" : "succeded");
975
976 return ret;
977 }
978
979 /**************************************************************************
980 * qla2xxx_eh_host_reset
981 *
982 * Description:
983 * The reset function will reset the Adapter.
984 *
985 * Input:
986 * cmd = Linux SCSI command packet of the command that cause the
987 * adapter reset.
988 *
989 * Returns:
990 * Either SUCCESS or FAILED.
991 *
992 * Note:
993 **************************************************************************/
994 static int
995 qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
996 {
997 scsi_qla_host_t *ha = shost_priv(cmd->device->host);
998 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
999 int ret = FAILED;
1000 unsigned int id, lun;
1001 unsigned long serial;
1002 scsi_qla_host_t *pha = to_qla_parent(ha);
1003
1004 qla2x00_block_error_handler(cmd);
1005
1006 id = cmd->device->id;
1007 lun = cmd->device->lun;
1008 serial = cmd->serial_number;
1009
1010 if (!fcport)
1011 return ret;
1012
1013 qla_printk(KERN_INFO, ha,
1014 "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", ha->host_no, id, lun);
1015
1016 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
1017 goto eh_host_reset_lock;
1018
1019 /*
1020 * Fixme-may be dpc thread is active and processing
1021 * loop_resync,so wait a while for it to
1022 * be completed and then issue big hammer.Otherwise
1023 * it may cause I/O failure as big hammer marks the
1024 * devices as lost kicking of the port_down_timer
1025 * while dpc is stuck for the mailbox to complete.
1026 */
1027 qla2x00_wait_for_loop_ready(ha);
1028 set_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags);
1029 if (qla2x00_abort_isp(pha)) {
1030 clear_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags);
1031 /* failed. schedule dpc to try */
1032 set_bit(ISP_ABORT_NEEDED, &pha->dpc_flags);
1033
1034 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
1035 goto eh_host_reset_lock;
1036 }
1037 clear_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags);
1038
1039 /* Waiting for our command in done_queue to be returned to OS.*/
1040 if (qla2x00_eh_wait_for_pending_commands(pha))
1041 ret = SUCCESS;
1042
1043 if (ha->parent)
1044 qla2x00_vp_abort_isp(ha);
1045
1046 eh_host_reset_lock:
1047 qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
1048 (ret == FAILED) ? "failed" : "succeded");
1049
1050 return ret;
1051 }
1052
1053 /*
1054 * qla2x00_loop_reset
1055 * Issue loop reset.
1056 *
1057 * Input:
1058 * ha = adapter block pointer.
1059 *
1060 * Returns:
1061 * 0 = success
1062 */
1063 static int
1064 qla2x00_loop_reset(scsi_qla_host_t *ha)
1065 {
1066 int ret;
1067 struct fc_port *fcport;
1068
1069 if (ha->flags.enable_lip_full_login) {
1070 ret = qla2x00_full_login_lip(ha);
1071 if (ret != QLA_SUCCESS) {
1072 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1073 "full_login_lip=%d.\n", __func__, ha->host_no,
1074 ret));
1075 }
1076 atomic_set(&ha->loop_state, LOOP_DOWN);
1077 atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
1078 qla2x00_mark_all_devices_lost(ha, 0);
1079 qla2x00_wait_for_loop_ready(ha);
1080 }
1081
1082 if (ha->flags.enable_lip_reset) {
1083 ret = qla2x00_lip_reset(ha);
1084 if (ret != QLA_SUCCESS) {
1085 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1086 "lip_reset=%d.\n", __func__, ha->host_no, ret));
1087 }
1088 qla2x00_wait_for_loop_ready(ha);
1089 }
1090
1091 if (ha->flags.enable_target_reset) {
1092 list_for_each_entry(fcport, &ha->fcports, list) {
1093 if (fcport->port_type != FCT_TARGET)
1094 continue;
1095
1096 ret = qla2x00_device_reset(ha, fcport);
1097 if (ret != QLA_SUCCESS) {
1098 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1099 "target_reset=%d d_id=%x.\n", __func__,
1100 ha->host_no, ret, fcport->d_id.b24));
1101 }
1102 }
1103 }
1104
1105 /* Issue marker command only when we are going to start the I/O */
1106 ha->marker_needed = 1;
1107
1108 return QLA_SUCCESS;
1109 }
1110
1111 /*
1112 * qla2x00_device_reset
1113 * Issue bus device reset message to the target.
1114 *
1115 * Input:
1116 * ha = adapter block pointer.
1117 * t = SCSI ID.
1118 * TARGET_QUEUE_LOCK must be released.
1119 * ADAPTER_STATE_LOCK must be released.
1120 *
1121 * Context:
1122 * Kernel context.
1123 */
1124 static int
1125 qla2x00_device_reset(scsi_qla_host_t *ha, fc_port_t *reset_fcport)
1126 {
1127 /* Abort Target command will clear Reservation */
1128 return ha->isp_ops->abort_target(reset_fcport);
1129 }
1130
1131 static int
1132 qla2xxx_slave_alloc(struct scsi_device *sdev)
1133 {
1134 struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1135
1136 if (!rport || fc_remote_port_chkready(rport))
1137 return -ENXIO;
1138
1139 sdev->hostdata = *(fc_port_t **)rport->dd_data;
1140
1141 return 0;
1142 }
1143
1144 static int
1145 qla2xxx_slave_configure(struct scsi_device *sdev)
1146 {
1147 scsi_qla_host_t *ha = shost_priv(sdev->host);
1148 struct fc_rport *rport = starget_to_rport(sdev->sdev_target);
1149
1150 if (sdev->tagged_supported)
1151 scsi_activate_tcq(sdev, ha->max_q_depth);
1152 else
1153 scsi_deactivate_tcq(sdev, ha->max_q_depth);
1154
1155 rport->dev_loss_tmo = ha->port_down_retry_count + 5;
1156
1157 return 0;
1158 }
1159
1160 static void
1161 qla2xxx_slave_destroy(struct scsi_device *sdev)
1162 {
1163 sdev->hostdata = NULL;
1164 }
1165
1166 static int
1167 qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth)
1168 {
1169 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1170 return sdev->queue_depth;
1171 }
1172
1173 static int
1174 qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1175 {
1176 if (sdev->tagged_supported) {
1177 scsi_set_tag_type(sdev, tag_type);
1178 if (tag_type)
1179 scsi_activate_tcq(sdev, sdev->queue_depth);
1180 else
1181 scsi_deactivate_tcq(sdev, sdev->queue_depth);
1182 } else
1183 tag_type = 0;
1184
1185 return tag_type;
1186 }
1187
1188 /**
1189 * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1190 * @ha: HA context
1191 *
1192 * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1193 * supported addressing method.
1194 */
1195 static void
1196 qla2x00_config_dma_addressing(scsi_qla_host_t *ha)
1197 {
1198 /* Assume a 32bit DMA mask. */
1199 ha->flags.enable_64bit_addressing = 0;
1200
1201 if (!dma_set_mask(&ha->pdev->dev, DMA_64BIT_MASK)) {
1202 /* Any upper-dword bits set? */
1203 if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1204 !pci_set_consistent_dma_mask(ha->pdev, DMA_64BIT_MASK)) {
1205 /* Ok, a 64bit DMA mask is applicable. */
1206 ha->flags.enable_64bit_addressing = 1;
1207 ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64;
1208 ha->isp_ops->build_iocbs = qla2x00_build_scsi_iocbs_64;
1209 return;
1210 }
1211 }
1212
1213 dma_set_mask(&ha->pdev->dev, DMA_32BIT_MASK);
1214 pci_set_consistent_dma_mask(ha->pdev, DMA_32BIT_MASK);
1215 }
1216
1217 static void
1218 qla2x00_enable_intrs(scsi_qla_host_t *ha)
1219 {
1220 unsigned long flags = 0;
1221 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1222
1223 spin_lock_irqsave(&ha->hardware_lock, flags);
1224 ha->interrupts_on = 1;
1225 /* enable risc and host interrupts */
1226 WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1227 RD_REG_WORD(&reg->ictrl);
1228 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1229
1230 }
1231
1232 static void
1233 qla2x00_disable_intrs(scsi_qla_host_t *ha)
1234 {
1235 unsigned long flags = 0;
1236 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1237
1238 spin_lock_irqsave(&ha->hardware_lock, flags);
1239 ha->interrupts_on = 0;
1240 /* disable risc and host interrupts */
1241 WRT_REG_WORD(&reg->ictrl, 0);
1242 RD_REG_WORD(&reg->ictrl);
1243 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1244 }
1245
1246 static void
1247 qla24xx_enable_intrs(scsi_qla_host_t *ha)
1248 {
1249 unsigned long flags = 0;
1250 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1251
1252 spin_lock_irqsave(&ha->hardware_lock, flags);
1253 ha->interrupts_on = 1;
1254 WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1255 RD_REG_DWORD(&reg->ictrl);
1256 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1257 }
1258
1259 static void
1260 qla24xx_disable_intrs(scsi_qla_host_t *ha)
1261 {
1262 unsigned long flags = 0;
1263 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1264
1265 spin_lock_irqsave(&ha->hardware_lock, flags);
1266 ha->interrupts_on = 0;
1267 WRT_REG_DWORD(&reg->ictrl, 0);
1268 RD_REG_DWORD(&reg->ictrl);
1269 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1270 }
1271
1272 static struct isp_operations qla2100_isp_ops = {
1273 .pci_config = qla2100_pci_config,
1274 .reset_chip = qla2x00_reset_chip,
1275 .chip_diag = qla2x00_chip_diag,
1276 .config_rings = qla2x00_config_rings,
1277 .reset_adapter = qla2x00_reset_adapter,
1278 .nvram_config = qla2x00_nvram_config,
1279 .update_fw_options = qla2x00_update_fw_options,
1280 .load_risc = qla2x00_load_risc,
1281 .pci_info_str = qla2x00_pci_info_str,
1282 .fw_version_str = qla2x00_fw_version_str,
1283 .intr_handler = qla2100_intr_handler,
1284 .enable_intrs = qla2x00_enable_intrs,
1285 .disable_intrs = qla2x00_disable_intrs,
1286 .abort_command = qla2x00_abort_command,
1287 .abort_target = qla2x00_abort_target,
1288 .fabric_login = qla2x00_login_fabric,
1289 .fabric_logout = qla2x00_fabric_logout,
1290 .calc_req_entries = qla2x00_calc_iocbs_32,
1291 .build_iocbs = qla2x00_build_scsi_iocbs_32,
1292 .prep_ms_iocb = qla2x00_prep_ms_iocb,
1293 .prep_ms_fdmi_iocb = qla2x00_prep_ms_fdmi_iocb,
1294 .read_nvram = qla2x00_read_nvram_data,
1295 .write_nvram = qla2x00_write_nvram_data,
1296 .fw_dump = qla2100_fw_dump,
1297 .beacon_on = NULL,
1298 .beacon_off = NULL,
1299 .beacon_blink = NULL,
1300 .read_optrom = qla2x00_read_optrom_data,
1301 .write_optrom = qla2x00_write_optrom_data,
1302 .get_flash_version = qla2x00_get_flash_version,
1303 };
1304
1305 static struct isp_operations qla2300_isp_ops = {
1306 .pci_config = qla2300_pci_config,
1307 .reset_chip = qla2x00_reset_chip,
1308 .chip_diag = qla2x00_chip_diag,
1309 .config_rings = qla2x00_config_rings,
1310 .reset_adapter = qla2x00_reset_adapter,
1311 .nvram_config = qla2x00_nvram_config,
1312 .update_fw_options = qla2x00_update_fw_options,
1313 .load_risc = qla2x00_load_risc,
1314 .pci_info_str = qla2x00_pci_info_str,
1315 .fw_version_str = qla2x00_fw_version_str,
1316 .intr_handler = qla2300_intr_handler,
1317 .enable_intrs = qla2x00_enable_intrs,
1318 .disable_intrs = qla2x00_disable_intrs,
1319 .abort_command = qla2x00_abort_command,
1320 .abort_target = qla2x00_abort_target,
1321 .fabric_login = qla2x00_login_fabric,
1322 .fabric_logout = qla2x00_fabric_logout,
1323 .calc_req_entries = qla2x00_calc_iocbs_32,
1324 .build_iocbs = qla2x00_build_scsi_iocbs_32,
1325 .prep_ms_iocb = qla2x00_prep_ms_iocb,
1326 .prep_ms_fdmi_iocb = qla2x00_prep_ms_fdmi_iocb,
1327 .read_nvram = qla2x00_read_nvram_data,
1328 .write_nvram = qla2x00_write_nvram_data,
1329 .fw_dump = qla2300_fw_dump,
1330 .beacon_on = qla2x00_beacon_on,
1331 .beacon_off = qla2x00_beacon_off,
1332 .beacon_blink = qla2x00_beacon_blink,
1333 .read_optrom = qla2x00_read_optrom_data,
1334 .write_optrom = qla2x00_write_optrom_data,
1335 .get_flash_version = qla2x00_get_flash_version,
1336 };
1337
1338 static struct isp_operations qla24xx_isp_ops = {
1339 .pci_config = qla24xx_pci_config,
1340 .reset_chip = qla24xx_reset_chip,
1341 .chip_diag = qla24xx_chip_diag,
1342 .config_rings = qla24xx_config_rings,
1343 .reset_adapter = qla24xx_reset_adapter,
1344 .nvram_config = qla24xx_nvram_config,
1345 .update_fw_options = qla24xx_update_fw_options,
1346 .load_risc = qla24xx_load_risc,
1347 .pci_info_str = qla24xx_pci_info_str,
1348 .fw_version_str = qla24xx_fw_version_str,
1349 .intr_handler = qla24xx_intr_handler,
1350 .enable_intrs = qla24xx_enable_intrs,
1351 .disable_intrs = qla24xx_disable_intrs,
1352 .abort_command = qla24xx_abort_command,
1353 .abort_target = qla24xx_abort_target,
1354 .fabric_login = qla24xx_login_fabric,
1355 .fabric_logout = qla24xx_fabric_logout,
1356 .calc_req_entries = NULL,
1357 .build_iocbs = NULL,
1358 .prep_ms_iocb = qla24xx_prep_ms_iocb,
1359 .prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb,
1360 .read_nvram = qla24xx_read_nvram_data,
1361 .write_nvram = qla24xx_write_nvram_data,
1362 .fw_dump = qla24xx_fw_dump,
1363 .beacon_on = qla24xx_beacon_on,
1364 .beacon_off = qla24xx_beacon_off,
1365 .beacon_blink = qla24xx_beacon_blink,
1366 .read_optrom = qla24xx_read_optrom_data,
1367 .write_optrom = qla24xx_write_optrom_data,
1368 .get_flash_version = qla24xx_get_flash_version,
1369 };
1370
1371 static struct isp_operations qla25xx_isp_ops = {
1372 .pci_config = qla25xx_pci_config,
1373 .reset_chip = qla24xx_reset_chip,
1374 .chip_diag = qla24xx_chip_diag,
1375 .config_rings = qla24xx_config_rings,
1376 .reset_adapter = qla24xx_reset_adapter,
1377 .nvram_config = qla24xx_nvram_config,
1378 .update_fw_options = qla24xx_update_fw_options,
1379 .load_risc = qla24xx_load_risc,
1380 .pci_info_str = qla24xx_pci_info_str,
1381 .fw_version_str = qla24xx_fw_version_str,
1382 .intr_handler = qla24xx_intr_handler,
1383 .enable_intrs = qla24xx_enable_intrs,
1384 .disable_intrs = qla24xx_disable_intrs,
1385 .abort_command = qla24xx_abort_command,
1386 .abort_target = qla24xx_abort_target,
1387 .fabric_login = qla24xx_login_fabric,
1388 .fabric_logout = qla24xx_fabric_logout,
1389 .calc_req_entries = NULL,
1390 .build_iocbs = NULL,
1391 .prep_ms_iocb = qla24xx_prep_ms_iocb,
1392 .prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb,
1393 .read_nvram = qla25xx_read_nvram_data,
1394 .write_nvram = qla25xx_write_nvram_data,
1395 .fw_dump = qla25xx_fw_dump,
1396 .beacon_on = qla24xx_beacon_on,
1397 .beacon_off = qla24xx_beacon_off,
1398 .beacon_blink = qla24xx_beacon_blink,
1399 .read_optrom = qla25xx_read_optrom_data,
1400 .write_optrom = qla24xx_write_optrom_data,
1401 .get_flash_version = qla24xx_get_flash_version,
1402 };
1403
1404 static inline void
1405 qla2x00_set_isp_flags(scsi_qla_host_t *ha)
1406 {
1407 ha->device_type = DT_EXTENDED_IDS;
1408 switch (ha->pdev->device) {
1409 case PCI_DEVICE_ID_QLOGIC_ISP2100:
1410 ha->device_type |= DT_ISP2100;
1411 ha->device_type &= ~DT_EXTENDED_IDS;
1412 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1413 break;
1414 case PCI_DEVICE_ID_QLOGIC_ISP2200:
1415 ha->device_type |= DT_ISP2200;
1416 ha->device_type &= ~DT_EXTENDED_IDS;
1417 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1418 break;
1419 case PCI_DEVICE_ID_QLOGIC_ISP2300:
1420 ha->device_type |= DT_ISP2300;
1421 ha->device_type |= DT_ZIO_SUPPORTED;
1422 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1423 break;
1424 case PCI_DEVICE_ID_QLOGIC_ISP2312:
1425 ha->device_type |= DT_ISP2312;
1426 ha->device_type |= DT_ZIO_SUPPORTED;
1427 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1428 break;
1429 case PCI_DEVICE_ID_QLOGIC_ISP2322:
1430 ha->device_type |= DT_ISP2322;
1431 ha->device_type |= DT_ZIO_SUPPORTED;
1432 if (ha->pdev->subsystem_vendor == 0x1028 &&
1433 ha->pdev->subsystem_device == 0x0170)
1434 ha->device_type |= DT_OEM_001;
1435 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1436 break;
1437 case PCI_DEVICE_ID_QLOGIC_ISP6312:
1438 ha->device_type |= DT_ISP6312;
1439 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1440 break;
1441 case PCI_DEVICE_ID_QLOGIC_ISP6322:
1442 ha->device_type |= DT_ISP6322;
1443 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1444 break;
1445 case PCI_DEVICE_ID_QLOGIC_ISP2422:
1446 ha->device_type |= DT_ISP2422;
1447 ha->device_type |= DT_ZIO_SUPPORTED;
1448 ha->device_type |= DT_FWI2;
1449 ha->device_type |= DT_IIDMA;
1450 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1451 break;
1452 case PCI_DEVICE_ID_QLOGIC_ISP2432:
1453 ha->device_type |= DT_ISP2432;
1454 ha->device_type |= DT_ZIO_SUPPORTED;
1455 ha->device_type |= DT_FWI2;
1456 ha->device_type |= DT_IIDMA;
1457 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1458 break;
1459 case PCI_DEVICE_ID_QLOGIC_ISP5422:
1460 ha->device_type |= DT_ISP5422;
1461 ha->device_type |= DT_FWI2;
1462 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1463 break;
1464 case PCI_DEVICE_ID_QLOGIC_ISP5432:
1465 ha->device_type |= DT_ISP5432;
1466 ha->device_type |= DT_FWI2;
1467 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1468 break;
1469 case PCI_DEVICE_ID_QLOGIC_ISP2532:
1470 ha->device_type |= DT_ISP2532;
1471 ha->device_type |= DT_ZIO_SUPPORTED;
1472 ha->device_type |= DT_FWI2;
1473 ha->device_type |= DT_IIDMA;
1474 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1475 break;
1476 }
1477 }
1478
1479 static int
1480 qla2x00_iospace_config(scsi_qla_host_t *ha)
1481 {
1482 resource_size_t pio;
1483
1484 if (pci_request_selected_regions(ha->pdev, ha->bars,
1485 QLA2XXX_DRIVER_NAME)) {
1486 qla_printk(KERN_WARNING, ha,
1487 "Failed to reserve PIO/MMIO regions (%s)\n",
1488 pci_name(ha->pdev));
1489
1490 goto iospace_error_exit;
1491 }
1492 if (!(ha->bars & 1))
1493 goto skip_pio;
1494
1495 /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1496 pio = pci_resource_start(ha->pdev, 0);
1497 if (pci_resource_flags(ha->pdev, 0) & IORESOURCE_IO) {
1498 if (pci_resource_len(ha->pdev, 0) < MIN_IOBASE_LEN) {
1499 qla_printk(KERN_WARNING, ha,
1500 "Invalid PCI I/O region size (%s)...\n",
1501 pci_name(ha->pdev));
1502 pio = 0;
1503 }
1504 } else {
1505 qla_printk(KERN_WARNING, ha,
1506 "region #0 not a PIO resource (%s)...\n",
1507 pci_name(ha->pdev));
1508 pio = 0;
1509 }
1510 ha->pio_address = pio;
1511
1512 skip_pio:
1513 /* Use MMIO operations for all accesses. */
1514 if (!(pci_resource_flags(ha->pdev, 1) & IORESOURCE_MEM)) {
1515 qla_printk(KERN_ERR, ha,
1516 "region #1 not an MMIO resource (%s), aborting\n",
1517 pci_name(ha->pdev));
1518 goto iospace_error_exit;
1519 }
1520 if (pci_resource_len(ha->pdev, 1) < MIN_IOBASE_LEN) {
1521 qla_printk(KERN_ERR, ha,
1522 "Invalid PCI mem region size (%s), aborting\n",
1523 pci_name(ha->pdev));
1524 goto iospace_error_exit;
1525 }
1526
1527 ha->iobase = ioremap(pci_resource_start(ha->pdev, 1), MIN_IOBASE_LEN);
1528 if (!ha->iobase) {
1529 qla_printk(KERN_ERR, ha,
1530 "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
1531
1532 goto iospace_error_exit;
1533 }
1534
1535 return (0);
1536
1537 iospace_error_exit:
1538 return (-ENOMEM);
1539 }
1540
1541 static void
1542 qla2xxx_scan_start(struct Scsi_Host *shost)
1543 {
1544 scsi_qla_host_t *ha = shost_priv(shost);
1545
1546 set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
1547 set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
1548 set_bit(RSCN_UPDATE, &ha->dpc_flags);
1549 }
1550
1551 static int
1552 qla2xxx_scan_finished(struct Scsi_Host *shost, unsigned long time)
1553 {
1554 scsi_qla_host_t *ha = shost_priv(shost);
1555
1556 if (!ha->host)
1557 return 1;
1558 if (time > ha->loop_reset_delay * HZ)
1559 return 1;
1560
1561 return atomic_read(&ha->loop_state) == LOOP_READY;
1562 }
1563
1564 /*
1565 * PCI driver interface
1566 */
1567 static int __devinit
1568 qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
1569 {
1570 int ret = -ENODEV;
1571 device_reg_t __iomem *reg;
1572 struct Scsi_Host *host;
1573 scsi_qla_host_t *ha;
1574 unsigned long flags = 0;
1575 char pci_info[30];
1576 char fw_str[30];
1577 struct scsi_host_template *sht;
1578 int bars;
1579
1580 bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO);
1581 sht = &qla2x00_driver_template;
1582 if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
1583 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432 ||
1584 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5422 ||
1585 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5432 ||
1586 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2532) {
1587 bars = pci_select_bars(pdev, IORESOURCE_MEM);
1588 sht = &qla24xx_driver_template;
1589 }
1590
1591 if (pci_enable_device_bars(pdev, bars))
1592 goto probe_out;
1593
1594 if (pci_find_aer_capability(pdev))
1595 if (pci_enable_pcie_error_reporting(pdev))
1596 goto probe_out;
1597
1598 host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
1599 if (host == NULL) {
1600 printk(KERN_WARNING
1601 "qla2xxx: Couldn't allocate host from scsi layer!\n");
1602 goto probe_disable_device;
1603 }
1604
1605 /* Clear our data area */
1606 ha = shost_priv(host);
1607 memset(ha, 0, sizeof(scsi_qla_host_t));
1608
1609 ha->pdev = pdev;
1610 ha->host = host;
1611 ha->host_no = host->host_no;
1612 sprintf(ha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, ha->host_no);
1613 ha->parent = NULL;
1614 ha->bars = bars;
1615
1616 /* Set ISP-type information. */
1617 qla2x00_set_isp_flags(ha);
1618
1619 /* Configure PCI I/O space */
1620 ret = qla2x00_iospace_config(ha);
1621 if (ret)
1622 goto probe_failed;
1623
1624 qla_printk(KERN_INFO, ha,
1625 "Found an ISP%04X, irq %d, iobase 0x%p\n", pdev->device, pdev->irq,
1626 ha->iobase);
1627
1628 spin_lock_init(&ha->hardware_lock);
1629
1630 ha->prev_topology = 0;
1631 ha->init_cb_size = sizeof(init_cb_t);
1632 ha->mgmt_svr_loop_id = MANAGEMENT_SERVER + ha->vp_idx;
1633 ha->link_data_rate = PORT_SPEED_UNKNOWN;
1634 ha->optrom_size = OPTROM_SIZE_2300;
1635
1636 ha->max_q_depth = MAX_Q_DEPTH;
1637 if (ql2xmaxqdepth != 0 && ql2xmaxqdepth <= 0xffffU)
1638 ha->max_q_depth = ql2xmaxqdepth;
1639
1640 /* Assign ISP specific operations. */
1641 if (IS_QLA2100(ha)) {
1642 host->max_id = MAX_TARGETS_2100;
1643 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
1644 ha->request_q_length = REQUEST_ENTRY_CNT_2100;
1645 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1646 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1647 host->sg_tablesize = 32;
1648 ha->gid_list_info_size = 4;
1649 ha->isp_ops = &qla2100_isp_ops;
1650 } else if (IS_QLA2200(ha)) {
1651 host->max_id = MAX_TARGETS_2200;
1652 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1653 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1654 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1655 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1656 ha->gid_list_info_size = 4;
1657 ha->isp_ops = &qla2100_isp_ops;
1658 } else if (IS_QLA23XX(ha)) {
1659 host->max_id = MAX_TARGETS_2200;
1660 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1661 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1662 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1663 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1664 ha->gid_list_info_size = 6;
1665 if (IS_QLA2322(ha) || IS_QLA6322(ha))
1666 ha->optrom_size = OPTROM_SIZE_2322;
1667 ha->isp_ops = &qla2300_isp_ops;
1668 } else if (IS_QLA24XX(ha) || IS_QLA54XX(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_24XX;
1678 ha->isp_ops = &qla24xx_isp_ops;
1679 } else if (IS_QLA25XX(ha)) {
1680 host->max_id = MAX_TARGETS_2200;
1681 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1682 ha->request_q_length = REQUEST_ENTRY_CNT_24XX;
1683 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1684 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1685 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
1686 ha->mgmt_svr_loop_id = 10 + ha->vp_idx;
1687 ha->gid_list_info_size = 8;
1688 ha->optrom_size = OPTROM_SIZE_25XX;
1689 ha->isp_ops = &qla25xx_isp_ops;
1690 }
1691 host->can_queue = ha->request_q_length + 128;
1692
1693 /* load the F/W, read paramaters, and init the H/W */
1694 ha->instance = num_hosts;
1695
1696 init_MUTEX(&ha->mbx_cmd_sem);
1697 init_MUTEX(&ha->vport_sem);
1698 init_MUTEX_LOCKED(&ha->mbx_intr_sem);
1699
1700 INIT_LIST_HEAD(&ha->list);
1701 INIT_LIST_HEAD(&ha->fcports);
1702 INIT_LIST_HEAD(&ha->vp_list);
1703
1704 set_bit(0, (unsigned long *) ha->vp_idx_map);
1705
1706 qla2x00_config_dma_addressing(ha);
1707 if (qla2x00_mem_alloc(ha)) {
1708 qla_printk(KERN_WARNING, ha,
1709 "[ERROR] Failed to allocate memory for adapter\n");
1710
1711 ret = -ENOMEM;
1712 goto probe_failed;
1713 }
1714
1715 if (qla2x00_initialize_adapter(ha)) {
1716 qla_printk(KERN_WARNING, ha,
1717 "Failed to initialize adapter\n");
1718
1719 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
1720 "Adapter flags %x.\n",
1721 ha->host_no, ha->device_flags));
1722
1723 ret = -ENODEV;
1724 goto probe_failed;
1725 }
1726
1727 /*
1728 * Startup the kernel thread for this host adapter
1729 */
1730 ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
1731 "%s_dpc", ha->host_str);
1732 if (IS_ERR(ha->dpc_thread)) {
1733 qla_printk(KERN_WARNING, ha,
1734 "Unable to start DPC thread!\n");
1735 ret = PTR_ERR(ha->dpc_thread);
1736 goto probe_failed;
1737 }
1738
1739 host->this_id = 255;
1740 host->cmd_per_lun = 3;
1741 host->unique_id = ha->instance;
1742 host->max_cmd_len = MAX_CMDSZ;
1743 host->max_channel = MAX_BUSES - 1;
1744 host->max_lun = MAX_LUNS;
1745 host->transportt = qla2xxx_transport_template;
1746
1747 ret = qla2x00_request_irqs(ha);
1748 if (ret)
1749 goto probe_failed;
1750
1751 /* Initialized the timer */
1752 qla2x00_start_timer(ha, qla2x00_timer, WATCH_INTERVAL);
1753
1754 DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
1755 ha->host_no, ha));
1756
1757 ha->isp_ops->disable_intrs(ha);
1758
1759 spin_lock_irqsave(&ha->hardware_lock, flags);
1760 reg = ha->iobase;
1761 if (IS_FWI2_CAPABLE(ha)) {
1762 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_HOST_INT);
1763 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_RISC_INT);
1764 } else {
1765 WRT_REG_WORD(&reg->isp.semaphore, 0);
1766 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_RISC_INT);
1767 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_HOST_INT);
1768
1769 /* Enable proper parity */
1770 if (!IS_QLA2100(ha) && !IS_QLA2200(ha)) {
1771 if (IS_QLA2300(ha))
1772 /* SRAM parity */
1773 WRT_REG_WORD(&reg->isp.hccr,
1774 (HCCR_ENABLE_PARITY + 0x1));
1775 else
1776 /* SRAM, Instruction RAM and GP RAM parity */
1777 WRT_REG_WORD(&reg->isp.hccr,
1778 (HCCR_ENABLE_PARITY + 0x7));
1779 }
1780 }
1781 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1782
1783 ha->isp_ops->enable_intrs(ha);
1784
1785 pci_set_drvdata(pdev, ha);
1786
1787 ha->flags.init_done = 1;
1788 ha->flags.online = 1;
1789
1790 num_hosts++;
1791
1792 ret = scsi_add_host(host, &pdev->dev);
1793 if (ret)
1794 goto probe_failed;
1795
1796 scsi_scan_host(host);
1797
1798 qla2x00_alloc_sysfs_attr(ha);
1799
1800 qla2x00_init_host_attr(ha);
1801
1802 qla_printk(KERN_INFO, ha, "\n"
1803 " QLogic Fibre Channel HBA Driver: %s\n"
1804 " QLogic %s - %s\n"
1805 " ISP%04X: %s @ %s hdma%c, host#=%ld, fw=%s\n",
1806 qla2x00_version_str, ha->model_number,
1807 ha->model_desc ? ha->model_desc: "", pdev->device,
1808 ha->isp_ops->pci_info_str(ha, pci_info), pci_name(pdev),
1809 ha->flags.enable_64bit_addressing ? '+': '-', ha->host_no,
1810 ha->isp_ops->fw_version_str(ha, fw_str));
1811
1812 return 0;
1813
1814 probe_failed:
1815 qla2x00_free_device(ha);
1816
1817 scsi_host_put(host);
1818
1819 probe_disable_device:
1820 pci_disable_device(pdev);
1821
1822 probe_out:
1823 return ret;
1824 }
1825
1826 static void __devexit
1827 qla2x00_remove_one(struct pci_dev *pdev)
1828 {
1829 scsi_qla_host_t *ha;
1830
1831 ha = pci_get_drvdata(pdev);
1832
1833 qla2x00_free_sysfs_attr(ha);
1834
1835 fc_remove_host(ha->host);
1836
1837 scsi_remove_host(ha->host);
1838
1839 qla2x00_free_device(ha);
1840
1841 scsi_host_put(ha->host);
1842
1843 pci_disable_device(pdev);
1844 pci_set_drvdata(pdev, NULL);
1845 }
1846
1847 static void
1848 qla2x00_free_device(scsi_qla_host_t *ha)
1849 {
1850 /* Disable timer */
1851 if (ha->timer_active)
1852 qla2x00_stop_timer(ha);
1853
1854 /* Kill the kernel thread for this host */
1855 if (ha->dpc_thread) {
1856 struct task_struct *t = ha->dpc_thread;
1857
1858 /*
1859 * qla2xxx_wake_dpc checks for ->dpc_thread
1860 * so we need to zero it out.
1861 */
1862 ha->dpc_thread = NULL;
1863 kthread_stop(t);
1864 }
1865
1866 if (ha->eft)
1867 qla2x00_trace_control(ha, TC_DISABLE, 0, 0);
1868
1869 ha->flags.online = 0;
1870
1871 /* Stop currently executing firmware. */
1872 qla2x00_try_to_stop_firmware(ha);
1873
1874 /* turn-off interrupts on the card */
1875 if (ha->interrupts_on)
1876 ha->isp_ops->disable_intrs(ha);
1877
1878 qla2x00_mem_free(ha);
1879
1880 qla2x00_free_irqs(ha);
1881
1882 /* release io space registers */
1883 if (ha->iobase)
1884 iounmap(ha->iobase);
1885 pci_release_selected_regions(ha->pdev, ha->bars);
1886 }
1887
1888 static inline void
1889 qla2x00_schedule_rport_del(struct scsi_qla_host *ha, fc_port_t *fcport,
1890 int defer)
1891 {
1892 unsigned long flags;
1893 struct fc_rport *rport;
1894
1895 if (!fcport->rport)
1896 return;
1897
1898 rport = fcport->rport;
1899 if (defer) {
1900 spin_lock_irqsave(&fcport->rport_lock, flags);
1901 fcport->drport = rport;
1902 fcport->rport = NULL;
1903 *(fc_port_t **)rport->dd_data = NULL;
1904 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1905 set_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags);
1906 } else {
1907 spin_lock_irqsave(&fcport->rport_lock, flags);
1908 fcport->rport = NULL;
1909 *(fc_port_t **)rport->dd_data = NULL;
1910 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1911 fc_remote_port_delete(rport);
1912 }
1913 }
1914
1915 /*
1916 * qla2x00_mark_device_lost Updates fcport state when device goes offline.
1917 *
1918 * Input: ha = adapter block pointer. fcport = port structure pointer.
1919 *
1920 * Return: None.
1921 *
1922 * Context:
1923 */
1924 void qla2x00_mark_device_lost(scsi_qla_host_t *ha, fc_port_t *fcport,
1925 int do_login, int defer)
1926 {
1927 if (atomic_read(&fcport->state) == FCS_ONLINE &&
1928 ha->vp_idx == fcport->vp_idx)
1929 qla2x00_schedule_rport_del(ha, fcport, defer);
1930
1931 /*
1932 * We may need to retry the login, so don't change the state of the
1933 * port but do the retries.
1934 */
1935 if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
1936 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1937
1938 if (!do_login)
1939 return;
1940
1941 if (fcport->login_retry == 0) {
1942 fcport->login_retry = ha->login_retry_count;
1943 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
1944
1945 DEBUG(printk("scsi(%ld): Port login retry: "
1946 "%02x%02x%02x%02x%02x%02x%02x%02x, "
1947 "id = 0x%04x retry cnt=%d\n",
1948 ha->host_no,
1949 fcport->port_name[0],
1950 fcport->port_name[1],
1951 fcport->port_name[2],
1952 fcport->port_name[3],
1953 fcport->port_name[4],
1954 fcport->port_name[5],
1955 fcport->port_name[6],
1956 fcport->port_name[7],
1957 fcport->loop_id,
1958 fcport->login_retry));
1959 }
1960 }
1961
1962 /*
1963 * qla2x00_mark_all_devices_lost
1964 * Updates fcport state when device goes offline.
1965 *
1966 * Input:
1967 * ha = adapter block pointer.
1968 * fcport = port structure pointer.
1969 *
1970 * Return:
1971 * None.
1972 *
1973 * Context:
1974 */
1975 void
1976 qla2x00_mark_all_devices_lost(scsi_qla_host_t *ha, int defer)
1977 {
1978 fc_port_t *fcport;
1979 scsi_qla_host_t *pha = to_qla_parent(ha);
1980
1981 list_for_each_entry(fcport, &pha->fcports, list) {
1982 if (ha->vp_idx != 0 && ha->vp_idx != fcport->vp_idx)
1983 continue;
1984 /*
1985 * No point in marking the device as lost, if the device is
1986 * already DEAD.
1987 */
1988 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
1989 continue;
1990 if (atomic_read(&fcport->state) == FCS_ONLINE) {
1991 if (defer)
1992 qla2x00_schedule_rport_del(ha, fcport, defer);
1993 else if (ha->vp_idx == fcport->vp_idx)
1994 qla2x00_schedule_rport_del(ha, fcport, defer);
1995 }
1996 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1997 }
1998
1999 if (defer)
2000 qla2xxx_wake_dpc(ha);
2001 }
2002
2003 /*
2004 * qla2x00_mem_alloc
2005 * Allocates adapter memory.
2006 *
2007 * Returns:
2008 * 0 = success.
2009 * 1 = failure.
2010 */
2011 uint8_t
2012 qla2x00_mem_alloc(scsi_qla_host_t *ha)
2013 {
2014 char name[16];
2015 uint8_t status = 1;
2016 int retry= 10;
2017
2018 do {
2019 /*
2020 * This will loop only once if everything goes well, else some
2021 * number of retries will be performed to get around a kernel
2022 * bug where available mem is not allocated until after a
2023 * little delay and a retry.
2024 */
2025 ha->request_ring = dma_alloc_coherent(&ha->pdev->dev,
2026 (ha->request_q_length + 1) * sizeof(request_t),
2027 &ha->request_dma, GFP_KERNEL);
2028 if (ha->request_ring == NULL) {
2029 qla_printk(KERN_WARNING, ha,
2030 "Memory Allocation failed - request_ring\n");
2031
2032 qla2x00_mem_free(ha);
2033 msleep(100);
2034
2035 continue;
2036 }
2037
2038 ha->response_ring = dma_alloc_coherent(&ha->pdev->dev,
2039 (ha->response_q_length + 1) * sizeof(response_t),
2040 &ha->response_dma, GFP_KERNEL);
2041 if (ha->response_ring == NULL) {
2042 qla_printk(KERN_WARNING, ha,
2043 "Memory Allocation failed - response_ring\n");
2044
2045 qla2x00_mem_free(ha);
2046 msleep(100);
2047
2048 continue;
2049 }
2050
2051 ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
2052 &ha->gid_list_dma, GFP_KERNEL);
2053 if (ha->gid_list == NULL) {
2054 qla_printk(KERN_WARNING, ha,
2055 "Memory Allocation failed - gid_list\n");
2056
2057 qla2x00_mem_free(ha);
2058 msleep(100);
2059
2060 continue;
2061 }
2062
2063 /* get consistent memory allocated for init control block */
2064 ha->init_cb = dma_alloc_coherent(&ha->pdev->dev,
2065 ha->init_cb_size, &ha->init_cb_dma, GFP_KERNEL);
2066 if (ha->init_cb == NULL) {
2067 qla_printk(KERN_WARNING, ha,
2068 "Memory Allocation failed - init_cb\n");
2069
2070 qla2x00_mem_free(ha);
2071 msleep(100);
2072
2073 continue;
2074 }
2075 memset(ha->init_cb, 0, ha->init_cb_size);
2076
2077 snprintf(name, sizeof(name), "%s_%ld", QLA2XXX_DRIVER_NAME,
2078 ha->host_no);
2079 ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
2080 DMA_POOL_SIZE, 8, 0);
2081 if (ha->s_dma_pool == NULL) {
2082 qla_printk(KERN_WARNING, ha,
2083 "Memory Allocation failed - s_dma_pool\n");
2084
2085 qla2x00_mem_free(ha);
2086 msleep(100);
2087
2088 continue;
2089 }
2090
2091 if (qla2x00_allocate_sp_pool(ha)) {
2092 qla_printk(KERN_WARNING, ha,
2093 "Memory Allocation failed - "
2094 "qla2x00_allocate_sp_pool()\n");
2095
2096 qla2x00_mem_free(ha);
2097 msleep(100);
2098
2099 continue;
2100 }
2101
2102 /* Allocate memory for SNS commands */
2103 if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
2104 /* Get consistent memory allocated for SNS commands */
2105 ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
2106 sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma,
2107 GFP_KERNEL);
2108 if (ha->sns_cmd == NULL) {
2109 /* error */
2110 qla_printk(KERN_WARNING, ha,
2111 "Memory Allocation failed - sns_cmd\n");
2112
2113 qla2x00_mem_free(ha);
2114 msleep(100);
2115
2116 continue;
2117 }
2118 memset(ha->sns_cmd, 0, sizeof(struct sns_cmd_pkt));
2119 } else {
2120 /* Get consistent memory allocated for MS IOCB */
2121 ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2122 &ha->ms_iocb_dma);
2123 if (ha->ms_iocb == NULL) {
2124 /* error */
2125 qla_printk(KERN_WARNING, ha,
2126 "Memory Allocation failed - ms_iocb\n");
2127
2128 qla2x00_mem_free(ha);
2129 msleep(100);
2130
2131 continue;
2132 }
2133 memset(ha->ms_iocb, 0, sizeof(ms_iocb_entry_t));
2134
2135 /*
2136 * Get consistent memory allocated for CT SNS
2137 * commands
2138 */
2139 ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
2140 sizeof(struct ct_sns_pkt), &ha->ct_sns_dma,
2141 GFP_KERNEL);
2142 if (ha->ct_sns == NULL) {
2143 /* error */
2144 qla_printk(KERN_WARNING, ha,
2145 "Memory Allocation failed - ct_sns\n");
2146
2147 qla2x00_mem_free(ha);
2148 msleep(100);
2149
2150 continue;
2151 }
2152 memset(ha->ct_sns, 0, sizeof(struct ct_sns_pkt));
2153
2154 if (IS_FWI2_CAPABLE(ha)) {
2155 /*
2156 * Get consistent memory allocated for SFP
2157 * block.
2158 */
2159 ha->sfp_data = dma_pool_alloc(ha->s_dma_pool,
2160 GFP_KERNEL, &ha->sfp_data_dma);
2161 if (ha->sfp_data == NULL) {
2162 qla_printk(KERN_WARNING, ha,
2163 "Memory Allocation failed - "
2164 "sfp_data\n");
2165
2166 qla2x00_mem_free(ha);
2167 msleep(100);
2168
2169 continue;
2170 }
2171 memset(ha->sfp_data, 0, SFP_BLOCK_SIZE);
2172 }
2173 }
2174
2175 /* Get memory for cached NVRAM */
2176 ha->nvram = kzalloc(MAX_NVRAM_SIZE, GFP_KERNEL);
2177 if (ha->nvram == NULL) {
2178 /* error */
2179 qla_printk(KERN_WARNING, ha,
2180 "Memory Allocation failed - nvram cache\n");
2181
2182 qla2x00_mem_free(ha);
2183 msleep(100);
2184
2185 continue;
2186 }
2187
2188 /* Done all allocations without any error. */
2189 status = 0;
2190
2191 } while (retry-- && status != 0);
2192
2193 if (status) {
2194 printk(KERN_WARNING
2195 "%s(): **** FAILED ****\n", __func__);
2196 }
2197
2198 return(status);
2199 }
2200
2201 /*
2202 * qla2x00_mem_free
2203 * Frees all adapter allocated memory.
2204 *
2205 * Input:
2206 * ha = adapter block pointer.
2207 */
2208 void
2209 qla2x00_mem_free(scsi_qla_host_t *ha)
2210 {
2211 struct list_head *fcpl, *fcptemp;
2212 fc_port_t *fcport;
2213
2214 if (ha == NULL) {
2215 /* error */
2216 DEBUG2(printk("%s(): ERROR invalid ha pointer.\n", __func__));
2217 return;
2218 }
2219
2220 /* free sp pool */
2221 qla2x00_free_sp_pool(ha);
2222
2223 if (ha->fw_dump) {
2224 if (ha->eft)
2225 dma_free_coherent(&ha->pdev->dev,
2226 ntohl(ha->fw_dump->eft_size), ha->eft, ha->eft_dma);
2227 vfree(ha->fw_dump);
2228 }
2229
2230 if (ha->sns_cmd)
2231 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
2232 ha->sns_cmd, ha->sns_cmd_dma);
2233
2234 if (ha->ct_sns)
2235 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2236 ha->ct_sns, ha->ct_sns_dma);
2237
2238 if (ha->sfp_data)
2239 dma_pool_free(ha->s_dma_pool, ha->sfp_data, ha->sfp_data_dma);
2240
2241 if (ha->ms_iocb)
2242 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2243
2244 if (ha->s_dma_pool)
2245 dma_pool_destroy(ha->s_dma_pool);
2246
2247 if (ha->init_cb)
2248 dma_free_coherent(&ha->pdev->dev, ha->init_cb_size,
2249 ha->init_cb, ha->init_cb_dma);
2250
2251 if (ha->gid_list)
2252 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2253 ha->gid_list_dma);
2254
2255 if (ha->response_ring)
2256 dma_free_coherent(&ha->pdev->dev,
2257 (ha->response_q_length + 1) * sizeof(response_t),
2258 ha->response_ring, ha->response_dma);
2259
2260 if (ha->request_ring)
2261 dma_free_coherent(&ha->pdev->dev,
2262 (ha->request_q_length + 1) * sizeof(request_t),
2263 ha->request_ring, ha->request_dma);
2264
2265 ha->eft = NULL;
2266 ha->eft_dma = 0;
2267 ha->sns_cmd = NULL;
2268 ha->sns_cmd_dma = 0;
2269 ha->ct_sns = NULL;
2270 ha->ct_sns_dma = 0;
2271 ha->ms_iocb = NULL;
2272 ha->ms_iocb_dma = 0;
2273 ha->init_cb = NULL;
2274 ha->init_cb_dma = 0;
2275
2276 ha->s_dma_pool = NULL;
2277
2278 ha->gid_list = NULL;
2279 ha->gid_list_dma = 0;
2280
2281 ha->response_ring = NULL;
2282 ha->response_dma = 0;
2283 ha->request_ring = NULL;
2284 ha->request_dma = 0;
2285
2286 list_for_each_safe(fcpl, fcptemp, &ha->fcports) {
2287 fcport = list_entry(fcpl, fc_port_t, list);
2288
2289 /* fc ports */
2290 list_del_init(&fcport->list);
2291 kfree(fcport);
2292 }
2293 INIT_LIST_HEAD(&ha->fcports);
2294
2295 ha->fw_dump = NULL;
2296 ha->fw_dumped = 0;
2297 ha->fw_dump_reading = 0;
2298
2299 vfree(ha->optrom_buffer);
2300 kfree(ha->nvram);
2301 }
2302
2303 /*
2304 * qla2x00_allocate_sp_pool
2305 * This routine is called during initialization to allocate
2306 * memory for local srb_t.
2307 *
2308 * Input:
2309 * ha = adapter block pointer.
2310 *
2311 * Context:
2312 * Kernel context.
2313 */
2314 static int
2315 qla2x00_allocate_sp_pool(scsi_qla_host_t *ha)
2316 {
2317 int rval;
2318
2319 rval = QLA_SUCCESS;
2320 ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
2321 if (ha->srb_mempool == NULL) {
2322 qla_printk(KERN_INFO, ha, "Unable to allocate SRB mempool.\n");
2323 rval = QLA_FUNCTION_FAILED;
2324 }
2325 return (rval);
2326 }
2327
2328 /*
2329 * This routine frees all adapter allocated memory.
2330 *
2331 */
2332 static void
2333 qla2x00_free_sp_pool( scsi_qla_host_t *ha)
2334 {
2335 if (ha->srb_mempool) {
2336 mempool_destroy(ha->srb_mempool);
2337 ha->srb_mempool = NULL;
2338 }
2339 }
2340
2341 /**************************************************************************
2342 * qla2x00_do_dpc
2343 * This kernel thread is a task that is schedule by the interrupt handler
2344 * to perform the background processing for interrupts.
2345 *
2346 * Notes:
2347 * This task always run in the context of a kernel thread. It
2348 * is kick-off by the driver's detect code and starts up
2349 * up one per adapter. It immediately goes to sleep and waits for
2350 * some fibre event. When either the interrupt handler or
2351 * the timer routine detects a event it will one of the task
2352 * bits then wake us up.
2353 **************************************************************************/
2354 static int
2355 qla2x00_do_dpc(void *data)
2356 {
2357 int rval;
2358 scsi_qla_host_t *ha;
2359 fc_port_t *fcport;
2360 uint8_t status;
2361 uint16_t next_loopid;
2362
2363 ha = (scsi_qla_host_t *)data;
2364
2365 set_user_nice(current, -20);
2366
2367 while (!kthread_should_stop()) {
2368 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
2369
2370 set_current_state(TASK_INTERRUPTIBLE);
2371 schedule();
2372 __set_current_state(TASK_RUNNING);
2373
2374 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
2375
2376 /* Initialization not yet finished. Don't do anything yet. */
2377 if (!ha->flags.init_done)
2378 continue;
2379
2380 DEBUG3(printk("scsi(%ld): DPC handler\n", ha->host_no));
2381
2382 ha->dpc_active = 1;
2383
2384 if (ha->flags.mbox_busy) {
2385 ha->dpc_active = 0;
2386 continue;
2387 }
2388
2389 if (test_and_clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) {
2390
2391 DEBUG(printk("scsi(%ld): dpc: sched "
2392 "qla2x00_abort_isp ha = %p\n",
2393 ha->host_no, ha));
2394 if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
2395 &ha->dpc_flags))) {
2396
2397 if (qla2x00_abort_isp(ha)) {
2398 /* failed. retry later */
2399 set_bit(ISP_ABORT_NEEDED,
2400 &ha->dpc_flags);
2401 }
2402 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2403 }
2404 DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
2405 ha->host_no));
2406 }
2407
2408 if (test_and_clear_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags))
2409 qla2x00_update_fcports(ha);
2410
2411 if (test_and_clear_bit(LOOP_RESET_NEEDED, &ha->dpc_flags)) {
2412 DEBUG(printk("scsi(%ld): dpc: sched loop_reset()\n",
2413 ha->host_no));
2414 qla2x00_loop_reset(ha);
2415 }
2416
2417 if (test_and_clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) &&
2418 (!(test_and_set_bit(RESET_ACTIVE, &ha->dpc_flags)))) {
2419
2420 DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
2421 ha->host_no));
2422
2423 qla2x00_rst_aen(ha);
2424 clear_bit(RESET_ACTIVE, &ha->dpc_flags);
2425 }
2426
2427 /* Retry each device up to login retry count */
2428 if ((test_and_clear_bit(RELOGIN_NEEDED, &ha->dpc_flags)) &&
2429 !test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) &&
2430 atomic_read(&ha->loop_state) != LOOP_DOWN) {
2431
2432 DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
2433 ha->host_no));
2434
2435 next_loopid = 0;
2436 list_for_each_entry(fcport, &ha->fcports, list) {
2437 /*
2438 * If the port is not ONLINE then try to login
2439 * to it if we haven't run out of retries.
2440 */
2441 if (atomic_read(&fcport->state) != FCS_ONLINE &&
2442 fcport->login_retry) {
2443
2444 if (fcport->flags & FCF_FABRIC_DEVICE) {
2445 if (fcport->flags &
2446 FCF_TAPE_PRESENT)
2447 ha->isp_ops->fabric_logout(
2448 ha, fcport->loop_id,
2449 fcport->d_id.b.domain,
2450 fcport->d_id.b.area,
2451 fcport->d_id.b.al_pa);
2452 status = qla2x00_fabric_login(
2453 ha, fcport, &next_loopid);
2454 } else
2455 status =
2456 qla2x00_local_device_login(
2457 ha, fcport);
2458
2459 fcport->login_retry--;
2460 if (status == QLA_SUCCESS) {
2461 fcport->old_loop_id = fcport->loop_id;
2462
2463 DEBUG(printk("scsi(%ld): port login OK: logged in ID 0x%x\n",
2464 ha->host_no, fcport->loop_id));
2465
2466 qla2x00_update_fcport(ha,
2467 fcport);
2468 } else if (status == 1) {
2469 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
2470 /* retry the login again */
2471 DEBUG(printk("scsi(%ld): Retrying %d login again loop_id 0x%x\n",
2472 ha->host_no,
2473 fcport->login_retry, fcport->loop_id));
2474 } else {
2475 fcport->login_retry = 0;
2476 }
2477 if (fcport->login_retry == 0)
2478 fcport->loop_id = FC_NO_LOOP_ID;
2479 }
2480 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2481 break;
2482 }
2483 DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
2484 ha->host_no));
2485 }
2486
2487 if ((test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags)) &&
2488 atomic_read(&ha->loop_state) != LOOP_DOWN) {
2489
2490 clear_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags);
2491 DEBUG(printk("scsi(%ld): qla2x00_login_retry()\n",
2492 ha->host_no));
2493
2494 set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
2495
2496 DEBUG(printk("scsi(%ld): qla2x00_login_retry - end\n",
2497 ha->host_no));
2498 }
2499
2500 if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
2501
2502 DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
2503 ha->host_no));
2504
2505 if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
2506 &ha->dpc_flags))) {
2507
2508 rval = qla2x00_loop_resync(ha);
2509
2510 clear_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags);
2511 }
2512
2513 DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
2514 ha->host_no));
2515 }
2516
2517 if (test_and_clear_bit(FCPORT_RESCAN_NEEDED, &ha->dpc_flags)) {
2518
2519 DEBUG(printk("scsi(%ld): Rescan flagged fcports...\n",
2520 ha->host_no));
2521
2522 qla2x00_rescan_fcports(ha);
2523
2524 DEBUG(printk("scsi(%ld): Rescan flagged fcports..."
2525 "end.\n",
2526 ha->host_no));
2527 }
2528
2529 if (!ha->interrupts_on)
2530 ha->isp_ops->enable_intrs(ha);
2531
2532 if (test_and_clear_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags))
2533 ha->isp_ops->beacon_blink(ha);
2534
2535 qla2x00_do_dpc_all_vps(ha);
2536
2537 ha->dpc_active = 0;
2538 } /* End of while(1) */
2539
2540 DEBUG(printk("scsi(%ld): DPC handler exiting\n", ha->host_no));
2541
2542 /*
2543 * Make sure that nobody tries to wake us up again.
2544 */
2545 ha->dpc_active = 0;
2546
2547 return 0;
2548 }
2549
2550 void
2551 qla2xxx_wake_dpc(scsi_qla_host_t *ha)
2552 {
2553 if (ha->dpc_thread)
2554 wake_up_process(ha->dpc_thread);
2555 }
2556
2557 /*
2558 * qla2x00_rst_aen
2559 * Processes asynchronous reset.
2560 *
2561 * Input:
2562 * ha = adapter block pointer.
2563 */
2564 static void
2565 qla2x00_rst_aen(scsi_qla_host_t *ha)
2566 {
2567 if (ha->flags.online && !ha->flags.reset_active &&
2568 !atomic_read(&ha->loop_down_timer) &&
2569 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) {
2570 do {
2571 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
2572
2573 /*
2574 * Issue marker command only when we are going to start
2575 * the I/O.
2576 */
2577 ha->marker_needed = 1;
2578 } while (!atomic_read(&ha->loop_down_timer) &&
2579 (test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags)));
2580 }
2581 }
2582
2583 static void
2584 qla2x00_sp_free_dma(scsi_qla_host_t *ha, srb_t *sp)
2585 {
2586 struct scsi_cmnd *cmd = sp->cmd;
2587
2588 if (sp->flags & SRB_DMA_VALID) {
2589 scsi_dma_unmap(cmd);
2590 sp->flags &= ~SRB_DMA_VALID;
2591 }
2592 CMD_SP(cmd) = NULL;
2593 }
2594
2595 void
2596 qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *sp)
2597 {
2598 struct scsi_cmnd *cmd = sp->cmd;
2599
2600 qla2x00_sp_free_dma(ha, sp);
2601
2602 mempool_free(sp, ha->srb_mempool);
2603
2604 cmd->scsi_done(cmd);
2605 }
2606
2607 /**************************************************************************
2608 * qla2x00_timer
2609 *
2610 * Description:
2611 * One second timer
2612 *
2613 * Context: Interrupt
2614 ***************************************************************************/
2615 void
2616 qla2x00_timer(scsi_qla_host_t *ha)
2617 {
2618 unsigned long cpu_flags = 0;
2619 fc_port_t *fcport;
2620 int start_dpc = 0;
2621 int index;
2622 srb_t *sp;
2623 int t;
2624 scsi_qla_host_t *pha = to_qla_parent(ha);
2625
2626 /*
2627 * Ports - Port down timer.
2628 *
2629 * Whenever, a port is in the LOST state we start decrementing its port
2630 * down timer every second until it reaches zero. Once it reaches zero
2631 * the port it marked DEAD.
2632 */
2633 t = 0;
2634 list_for_each_entry(fcport, &ha->fcports, list) {
2635 if (fcport->port_type != FCT_TARGET)
2636 continue;
2637
2638 if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
2639
2640 if (atomic_read(&fcport->port_down_timer) == 0)
2641 continue;
2642
2643 if (atomic_dec_and_test(&fcport->port_down_timer) != 0)
2644 atomic_set(&fcport->state, FCS_DEVICE_DEAD);
2645
2646 DEBUG(printk("scsi(%ld): fcport-%d - port retry count: "
2647 "%d remaining\n",
2648 ha->host_no,
2649 t, atomic_read(&fcport->port_down_timer)));
2650 }
2651 t++;
2652 } /* End of for fcport */
2653
2654
2655 /* Loop down handler. */
2656 if (atomic_read(&ha->loop_down_timer) > 0 &&
2657 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags)) && ha->flags.online) {
2658
2659 if (atomic_read(&ha->loop_down_timer) ==
2660 ha->loop_down_abort_time) {
2661
2662 DEBUG(printk("scsi(%ld): Loop Down - aborting the "
2663 "queues before time expire\n",
2664 ha->host_no));
2665
2666 if (!IS_QLA2100(ha) && ha->link_down_timeout)
2667 atomic_set(&ha->loop_state, LOOP_DEAD);
2668
2669 /* Schedule an ISP abort to return any tape commands. */
2670 /* NPIV - scan physical port only */
2671 if (!ha->parent) {
2672 spin_lock_irqsave(&ha->hardware_lock,
2673 cpu_flags);
2674 for (index = 1;
2675 index < MAX_OUTSTANDING_COMMANDS;
2676 index++) {
2677 fc_port_t *sfcp;
2678
2679 sp = ha->outstanding_cmds[index];
2680 if (!sp)
2681 continue;
2682 sfcp = sp->fcport;
2683 if (!(sfcp->flags & FCF_TAPE_PRESENT))
2684 continue;
2685
2686 set_bit(ISP_ABORT_NEEDED,
2687 &ha->dpc_flags);
2688 break;
2689 }
2690 spin_unlock_irqrestore(&ha->hardware_lock,
2691 cpu_flags);
2692 }
2693 set_bit(ABORT_QUEUES_NEEDED, &ha->dpc_flags);
2694 start_dpc++;
2695 }
2696
2697 /* if the loop has been down for 4 minutes, reinit adapter */
2698 if (atomic_dec_and_test(&ha->loop_down_timer) != 0) {
2699 DEBUG(printk("scsi(%ld): Loop down exceed 4 mins - "
2700 "restarting queues.\n",
2701 ha->host_no));
2702
2703 set_bit(RESTART_QUEUES_NEEDED, &ha->dpc_flags);
2704 start_dpc++;
2705
2706 if (!(ha->device_flags & DFLG_NO_CABLE)) {
2707 DEBUG(printk("scsi(%ld): Loop down - "
2708 "aborting ISP.\n",
2709 ha->host_no));
2710 qla_printk(KERN_WARNING, ha,
2711 "Loop down - aborting ISP.\n");
2712
2713 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2714 }
2715 }
2716 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
2717 ha->host_no,
2718 atomic_read(&ha->loop_down_timer)));
2719 }
2720
2721 /* Check if beacon LED needs to be blinked */
2722 if (ha->beacon_blink_led == 1) {
2723 set_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags);
2724 start_dpc++;
2725 }
2726
2727 /* Schedule the DPC routine if needed */
2728 if ((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags) ||
2729 test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) ||
2730 test_bit(LOOP_RESET_NEEDED, &ha->dpc_flags) ||
2731 test_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags) ||
2732 start_dpc ||
2733 test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags) ||
2734 test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) ||
2735 test_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags) ||
2736 test_bit(VP_DPC_NEEDED, &ha->dpc_flags) ||
2737 test_bit(RELOGIN_NEEDED, &ha->dpc_flags)))
2738 qla2xxx_wake_dpc(pha);
2739
2740 qla2x00_restart_timer(ha, WATCH_INTERVAL);
2741 }
2742
2743 /* XXX(hch): crude hack to emulate a down_timeout() */
2744 int
2745 qla2x00_down_timeout(struct semaphore *sema, unsigned long timeout)
2746 {
2747 const unsigned int step = 100; /* msecs */
2748 unsigned int iterations = jiffies_to_msecs(timeout)/100;
2749
2750 do {
2751 if (!down_trylock(sema))
2752 return 0;
2753 if (msleep_interruptible(step))
2754 break;
2755 } while (--iterations > 0);
2756
2757 return -ETIMEDOUT;
2758 }
2759
2760 /* Firmware interface routines. */
2761
2762 #define FW_BLOBS 6
2763 #define FW_ISP21XX 0
2764 #define FW_ISP22XX 1
2765 #define FW_ISP2300 2
2766 #define FW_ISP2322 3
2767 #define FW_ISP24XX 4
2768 #define FW_ISP25XX 5
2769
2770 #define FW_FILE_ISP21XX "ql2100_fw.bin"
2771 #define FW_FILE_ISP22XX "ql2200_fw.bin"
2772 #define FW_FILE_ISP2300 "ql2300_fw.bin"
2773 #define FW_FILE_ISP2322 "ql2322_fw.bin"
2774 #define FW_FILE_ISP24XX "ql2400_fw.bin"
2775 #define FW_FILE_ISP25XX "ql2500_fw.bin"
2776
2777 static DECLARE_MUTEX(qla_fw_lock);
2778
2779 static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
2780 { .name = FW_FILE_ISP21XX, .segs = { 0x1000, 0 }, },
2781 { .name = FW_FILE_ISP22XX, .segs = { 0x1000, 0 }, },
2782 { .name = FW_FILE_ISP2300, .segs = { 0x800, 0 }, },
2783 { .name = FW_FILE_ISP2322, .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
2784 { .name = FW_FILE_ISP24XX, },
2785 { .name = FW_FILE_ISP25XX, },
2786 };
2787
2788 struct fw_blob *
2789 qla2x00_request_firmware(scsi_qla_host_t *ha)
2790 {
2791 struct fw_blob *blob;
2792
2793 blob = NULL;
2794 if (IS_QLA2100(ha)) {
2795 blob = &qla_fw_blobs[FW_ISP21XX];
2796 } else if (IS_QLA2200(ha)) {
2797 blob = &qla_fw_blobs[FW_ISP22XX];
2798 } else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
2799 blob = &qla_fw_blobs[FW_ISP2300];
2800 } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
2801 blob = &qla_fw_blobs[FW_ISP2322];
2802 } else if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
2803 blob = &qla_fw_blobs[FW_ISP24XX];
2804 } else if (IS_QLA25XX(ha)) {
2805 blob = &qla_fw_blobs[FW_ISP25XX];
2806 }
2807
2808 down(&qla_fw_lock);
2809 if (blob->fw)
2810 goto out;
2811
2812 if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
2813 DEBUG2(printk("scsi(%ld): Failed to load firmware image "
2814 "(%s).\n", ha->host_no, blob->name));
2815 blob->fw = NULL;
2816 blob = NULL;
2817 goto out;
2818 }
2819
2820 out:
2821 up(&qla_fw_lock);
2822 return blob;
2823 }
2824
2825 static void
2826 qla2x00_release_firmware(void)
2827 {
2828 int idx;
2829
2830 down(&qla_fw_lock);
2831 for (idx = 0; idx < FW_BLOBS; idx++)
2832 if (qla_fw_blobs[idx].fw)
2833 release_firmware(qla_fw_blobs[idx].fw);
2834 up(&qla_fw_lock);
2835 }
2836
2837 static pci_ers_result_t
2838 qla2xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
2839 {
2840 switch (state) {
2841 case pci_channel_io_normal:
2842 return PCI_ERS_RESULT_CAN_RECOVER;
2843 case pci_channel_io_frozen:
2844 pci_disable_device(pdev);
2845 return PCI_ERS_RESULT_NEED_RESET;
2846 case pci_channel_io_perm_failure:
2847 qla2x00_remove_one(pdev);
2848 return PCI_ERS_RESULT_DISCONNECT;
2849 }
2850 return PCI_ERS_RESULT_NEED_RESET;
2851 }
2852
2853 static pci_ers_result_t
2854 qla2xxx_pci_mmio_enabled(struct pci_dev *pdev)
2855 {
2856 int risc_paused = 0;
2857 uint32_t stat;
2858 unsigned long flags;
2859 scsi_qla_host_t *ha = pci_get_drvdata(pdev);
2860 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
2861 struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
2862
2863 spin_lock_irqsave(&ha->hardware_lock, flags);
2864 if (IS_QLA2100(ha) || IS_QLA2200(ha)){
2865 stat = RD_REG_DWORD(&reg->hccr);
2866 if (stat & HCCR_RISC_PAUSE)
2867 risc_paused = 1;
2868 } else if (IS_QLA23XX(ha)) {
2869 stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
2870 if (stat & HSR_RISC_PAUSED)
2871 risc_paused = 1;
2872 } else if (IS_FWI2_CAPABLE(ha)) {
2873 stat = RD_REG_DWORD(&reg24->host_status);
2874 if (stat & HSRX_RISC_PAUSED)
2875 risc_paused = 1;
2876 }
2877 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2878
2879 if (risc_paused) {
2880 qla_printk(KERN_INFO, ha, "RISC paused -- mmio_enabled, "
2881 "Dumping firmware!\n");
2882 ha->isp_ops->fw_dump(ha, 0);
2883
2884 return PCI_ERS_RESULT_NEED_RESET;
2885 } else
2886 return PCI_ERS_RESULT_RECOVERED;
2887 }
2888
2889 static pci_ers_result_t
2890 qla2xxx_pci_slot_reset(struct pci_dev *pdev)
2891 {
2892 pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
2893 scsi_qla_host_t *ha = pci_get_drvdata(pdev);
2894
2895 if (pci_enable_device_bars(pdev, ha->bars)) {
2896 qla_printk(KERN_WARNING, ha,
2897 "Can't re-enable PCI device after reset.\n");
2898
2899 return ret;
2900 }
2901 pci_set_master(pdev);
2902
2903 if (ha->isp_ops->pci_config(ha))
2904 return ret;
2905
2906 set_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2907 if (qla2x00_abort_isp(ha)== QLA_SUCCESS)
2908 ret = PCI_ERS_RESULT_RECOVERED;
2909 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2910
2911 return ret;
2912 }
2913
2914 static void
2915 qla2xxx_pci_resume(struct pci_dev *pdev)
2916 {
2917 scsi_qla_host_t *ha = pci_get_drvdata(pdev);
2918 int ret;
2919
2920 ret = qla2x00_wait_for_hba_online(ha);
2921 if (ret != QLA_SUCCESS) {
2922 qla_printk(KERN_ERR, ha,
2923 "the device failed to resume I/O "
2924 "from slot/link_reset");
2925 }
2926 pci_cleanup_aer_uncorrect_error_status(pdev);
2927 }
2928
2929 static struct pci_error_handlers qla2xxx_err_handler = {
2930 .error_detected = qla2xxx_pci_error_detected,
2931 .mmio_enabled = qla2xxx_pci_mmio_enabled,
2932 .slot_reset = qla2xxx_pci_slot_reset,
2933 .resume = qla2xxx_pci_resume,
2934 };
2935
2936 static struct pci_device_id qla2xxx_pci_tbl[] = {
2937 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
2938 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
2939 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
2940 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
2941 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
2942 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
2943 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
2944 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
2945 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
2946 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
2947 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
2948 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2532) },
2949 { 0 },
2950 };
2951 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
2952
2953 static struct pci_driver qla2xxx_pci_driver = {
2954 .name = QLA2XXX_DRIVER_NAME,
2955 .driver = {
2956 .owner = THIS_MODULE,
2957 },
2958 .id_table = qla2xxx_pci_tbl,
2959 .probe = qla2x00_probe_one,
2960 .remove = __devexit_p(qla2x00_remove_one),
2961 .err_handler = &qla2xxx_err_handler,
2962 };
2963
2964 /**
2965 * qla2x00_module_init - Module initialization.
2966 **/
2967 static int __init
2968 qla2x00_module_init(void)
2969 {
2970 int ret = 0;
2971
2972 /* Allocate cache for SRBs. */
2973 srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
2974 SLAB_HWCACHE_ALIGN, NULL);
2975 if (srb_cachep == NULL) {
2976 printk(KERN_ERR
2977 "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
2978 return -ENOMEM;
2979 }
2980
2981 /* Derive version string. */
2982 strcpy(qla2x00_version_str, QLA2XXX_VERSION);
2983 if (ql2xextended_error_logging)
2984 strcat(qla2x00_version_str, "-debug");
2985
2986 qla2xxx_transport_template =
2987 fc_attach_transport(&qla2xxx_transport_functions);
2988 if (!qla2xxx_transport_template) {
2989 kmem_cache_destroy(srb_cachep);
2990 return -ENODEV;
2991 }
2992 qla2xxx_transport_vport_template =
2993 fc_attach_transport(&qla2xxx_transport_vport_functions);
2994 if (!qla2xxx_transport_vport_template) {
2995 kmem_cache_destroy(srb_cachep);
2996 fc_release_transport(qla2xxx_transport_template);
2997 return -ENODEV;
2998 }
2999
3000 printk(KERN_INFO "QLogic Fibre Channel HBA Driver\n");
3001 ret = pci_register_driver(&qla2xxx_pci_driver);
3002 if (ret) {
3003 kmem_cache_destroy(srb_cachep);
3004 fc_release_transport(qla2xxx_transport_template);
3005 fc_release_transport(qla2xxx_transport_vport_template);
3006 }
3007 return ret;
3008 }
3009
3010 /**
3011 * qla2x00_module_exit - Module cleanup.
3012 **/
3013 static void __exit
3014 qla2x00_module_exit(void)
3015 {
3016 pci_unregister_driver(&qla2xxx_pci_driver);
3017 qla2x00_release_firmware();
3018 kmem_cache_destroy(srb_cachep);
3019 fc_release_transport(qla2xxx_transport_template);
3020 fc_release_transport(qla2xxx_transport_vport_template);
3021 }
3022
3023 module_init(qla2x00_module_init);
3024 module_exit(qla2x00_module_exit);
3025
3026 MODULE_AUTHOR("QLogic Corporation");
3027 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
3028 MODULE_LICENSE("GPL");
3029 MODULE_VERSION(QLA2XXX_VERSION);
3030 MODULE_FIRMWARE(FW_FILE_ISP21XX);
3031 MODULE_FIRMWARE(FW_FILE_ISP22XX);
3032 MODULE_FIRMWARE(FW_FILE_ISP2300);
3033 MODULE_FIRMWARE(FW_FILE_ISP2322);
3034 MODULE_FIRMWARE(FW_FILE_ISP24XX);
kernel source for telekom puls (alcatel/mediatek)