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[PATCH] ep93xx build fix
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / scsi / qla2xxx / qla_os.c
blob584fe5d8e50789312776a50125d76464e6be2e9b
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 kmem_cache_t *srb_cachep;
28
29 /*
30 * Ioctl related information.
31 */
32 static int num_hosts;
33
34 int ql2xlogintimeout = 20;
35 module_param(ql2xlogintimeout, int, S_IRUGO|S_IRUSR);
36 MODULE_PARM_DESC(ql2xlogintimeout,
37 "Login timeout value in seconds.");
38
39 int qlport_down_retry = 30;
40 module_param(qlport_down_retry, int, S_IRUGO|S_IRUSR);
41 MODULE_PARM_DESC(qlport_down_retry,
42 "Maximum number of command retries to a port that returns"
43 "a PORT-DOWN status.");
44
45 int ql2xplogiabsentdevice;
46 module_param(ql2xplogiabsentdevice, int, S_IRUGO|S_IWUSR);
47 MODULE_PARM_DESC(ql2xplogiabsentdevice,
48 "Option to enable PLOGI to devices that are not present after "
49 "a Fabric scan. This is needed for several broken switches."
50 "Default is 0 - no PLOGI. 1 - perfom PLOGI.");
51
52 int ql2xloginretrycount = 0;
53 module_param(ql2xloginretrycount, int, S_IRUGO|S_IRUSR);
54 MODULE_PARM_DESC(ql2xloginretrycount,
55 "Specify an alternate value for the NVRAM login retry count.");
56
57 #if defined(CONFIG_SCSI_QLA2XXX_EMBEDDED_FIRMWARE)
58 int ql2xfwloadflash;
59 module_param(ql2xfwloadflash, int, S_IRUGO|S_IRUSR);
60 MODULE_PARM_DESC(ql2xfwloadflash,
61 "Load ISP24xx firmware image from FLASH (onboard memory).");
62 #endif
63
64 static void qla2x00_free_device(scsi_qla_host_t *);
65
66 static void qla2x00_config_dma_addressing(scsi_qla_host_t *ha);
67
68 int ql2xfdmienable;
69 module_param(ql2xfdmienable, int, S_IRUGO|S_IRUSR);
70 MODULE_PARM_DESC(ql2xfdmienable,
71 "Enables FDMI registratons "
72 "Default is 0 - no FDMI. 1 - perfom FDMI.");
73
74 int ql2xprocessrscn;
75 module_param(ql2xprocessrscn, int, S_IRUGO|S_IRUSR);
76 MODULE_PARM_DESC(ql2xprocessrscn,
77 "Option to enable port RSCN handling via a series of less"
78 "fabric intrusive ADISCs and PLOGIs.");
79
80 /*
81 * SCSI host template entry points
82 */
83 static int qla2xxx_slave_configure(struct scsi_device * device);
84 static int qla2xxx_slave_alloc(struct scsi_device *);
85 static void qla2xxx_slave_destroy(struct scsi_device *);
86 static int qla2x00_queuecommand(struct scsi_cmnd *cmd,
87 void (*fn)(struct scsi_cmnd *));
88 static int qla24xx_queuecommand(struct scsi_cmnd *cmd,
89 void (*fn)(struct scsi_cmnd *));
90 static int qla2xxx_eh_abort(struct scsi_cmnd *);
91 static int qla2xxx_eh_device_reset(struct scsi_cmnd *);
92 static int qla2xxx_eh_bus_reset(struct scsi_cmnd *);
93 static int qla2xxx_eh_host_reset(struct scsi_cmnd *);
94 static int qla2x00_loop_reset(scsi_qla_host_t *ha);
95 static int qla2x00_device_reset(scsi_qla_host_t *, fc_port_t *);
96
97 static int qla2x00_change_queue_depth(struct scsi_device *, int);
98 static int qla2x00_change_queue_type(struct scsi_device *, int);
99
100 static struct scsi_host_template qla2x00_driver_template = {
101 .module = THIS_MODULE,
102 .name = "qla2xxx",
103 .queuecommand = qla2x00_queuecommand,
104
105 .eh_abort_handler = qla2xxx_eh_abort,
106 .eh_device_reset_handler = qla2xxx_eh_device_reset,
107 .eh_bus_reset_handler = qla2xxx_eh_bus_reset,
108 .eh_host_reset_handler = qla2xxx_eh_host_reset,
109
110 .slave_configure = qla2xxx_slave_configure,
111
112 .slave_alloc = qla2xxx_slave_alloc,
113 .slave_destroy = qla2xxx_slave_destroy,
114 .change_queue_depth = qla2x00_change_queue_depth,
115 .change_queue_type = qla2x00_change_queue_type,
116 .this_id = -1,
117 .cmd_per_lun = 3,
118 .use_clustering = ENABLE_CLUSTERING,
119 .sg_tablesize = SG_ALL,
120
121 /*
122 * The RISC allows for each command to transfer (2^32-1) bytes of data,
123 * which equates to 0x800000 sectors.
124 */
125 .max_sectors = 0xFFFF,
126 .shost_attrs = qla2x00_host_attrs,
127 };
128
129 static struct scsi_host_template qla24xx_driver_template = {
130 .module = THIS_MODULE,
131 .name = "qla2xxx",
132 .queuecommand = qla24xx_queuecommand,
133
134 .eh_abort_handler = qla2xxx_eh_abort,
135 .eh_device_reset_handler = qla2xxx_eh_device_reset,
136 .eh_bus_reset_handler = qla2xxx_eh_bus_reset,
137 .eh_host_reset_handler = qla2xxx_eh_host_reset,
138
139 .slave_configure = qla2xxx_slave_configure,
140
141 .slave_alloc = qla2xxx_slave_alloc,
142 .slave_destroy = qla2xxx_slave_destroy,
143 .change_queue_depth = qla2x00_change_queue_depth,
144 .change_queue_type = qla2x00_change_queue_type,
145 .this_id = -1,
146 .cmd_per_lun = 3,
147 .use_clustering = ENABLE_CLUSTERING,
148 .sg_tablesize = SG_ALL,
149
150 .max_sectors = 0xFFFF,
151 .shost_attrs = qla2x00_host_attrs,
152 };
153
154 static struct scsi_transport_template *qla2xxx_transport_template = NULL;
155
156 /* TODO Convert to inlines
157 *
158 * Timer routines
159 */
160 #define WATCH_INTERVAL 1 /* number of seconds */
161
162 static void qla2x00_timer(scsi_qla_host_t *);
163
164 static __inline__ void qla2x00_start_timer(scsi_qla_host_t *,
165 void *, unsigned long);
166 static __inline__ void qla2x00_restart_timer(scsi_qla_host_t *, unsigned long);
167 static __inline__ void qla2x00_stop_timer(scsi_qla_host_t *);
168
169 static inline void
170 qla2x00_start_timer(scsi_qla_host_t *ha, void *func, unsigned long interval)
171 {
172 init_timer(&ha->timer);
173 ha->timer.expires = jiffies + interval * HZ;
174 ha->timer.data = (unsigned long)ha;
175 ha->timer.function = (void (*)(unsigned long))func;
176 add_timer(&ha->timer);
177 ha->timer_active = 1;
178 }
179
180 static inline void
181 qla2x00_restart_timer(scsi_qla_host_t *ha, unsigned long interval)
182 {
183 mod_timer(&ha->timer, jiffies + interval * HZ);
184 }
185
186 static __inline__ void
187 qla2x00_stop_timer(scsi_qla_host_t *ha)
188 {
189 del_timer_sync(&ha->timer);
190 ha->timer_active = 0;
191 }
192
193 static int qla2x00_do_dpc(void *data);
194
195 static void qla2x00_rst_aen(scsi_qla_host_t *);
196
197 static uint8_t qla2x00_mem_alloc(scsi_qla_host_t *);
198 static void qla2x00_mem_free(scsi_qla_host_t *ha);
199 static int qla2x00_allocate_sp_pool( scsi_qla_host_t *ha);
200 static void qla2x00_free_sp_pool(scsi_qla_host_t *ha);
201 static void qla2x00_sp_free_dma(scsi_qla_host_t *, srb_t *);
202 void qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *);
203
204 /* -------------------------------------------------------------------------- */
205
206 static char *
207 qla2x00_pci_info_str(struct scsi_qla_host *ha, char *str)
208 {
209 static char *pci_bus_modes[] = {
210 "33", "66", "100", "133",
211 };
212 uint16_t pci_bus;
213
214 strcpy(str, "PCI");
215 pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
216 if (pci_bus) {
217 strcat(str, "-X (");
218 strcat(str, pci_bus_modes[pci_bus]);
219 } else {
220 pci_bus = (ha->pci_attr & BIT_8) >> 8;
221 strcat(str, " (");
222 strcat(str, pci_bus_modes[pci_bus]);
223 }
224 strcat(str, " MHz)");
225
226 return (str);
227 }
228
229 static char *
230 qla24xx_pci_info_str(struct scsi_qla_host *ha, char *str)
231 {
232 static char *pci_bus_modes[] = { "33", "66", "100", "133", };
233 uint32_t pci_bus;
234 int pcie_reg;
235
236 pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
237 if (pcie_reg) {
238 char lwstr[6];
239 uint16_t pcie_lstat, lspeed, lwidth;
240
241 pcie_reg += 0x12;
242 pci_read_config_word(ha->pdev, pcie_reg, &pcie_lstat);
243 lspeed = pcie_lstat & (BIT_0 | BIT_1 | BIT_2 | BIT_3);
244 lwidth = (pcie_lstat &
245 (BIT_4 | BIT_5 | BIT_6 | BIT_7 | BIT_8 | BIT_9)) >> 4;
246
247 strcpy(str, "PCIe (");
248 if (lspeed == 1)
249 strcat(str, "2.5Gb/s ");
250 else
251 strcat(str, "<unknown> ");
252 snprintf(lwstr, sizeof(lwstr), "x%d)", lwidth);
253 strcat(str, lwstr);
254
255 return str;
256 }
257
258 strcpy(str, "PCI");
259 pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
260 if (pci_bus == 0 || pci_bus == 8) {
261 strcat(str, " (");
262 strcat(str, pci_bus_modes[pci_bus >> 3]);
263 } else {
264 strcat(str, "-X ");
265 if (pci_bus & BIT_2)
266 strcat(str, "Mode 2");
267 else
268 strcat(str, "Mode 1");
269 strcat(str, " (");
270 strcat(str, pci_bus_modes[pci_bus & ~BIT_2]);
271 }
272 strcat(str, " MHz)");
273
274 return str;
275 }
276
277 char *
278 qla2x00_fw_version_str(struct scsi_qla_host *ha, char *str)
279 {
280 char un_str[10];
281
282 sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
283 ha->fw_minor_version,
284 ha->fw_subminor_version);
285
286 if (ha->fw_attributes & BIT_9) {
287 strcat(str, "FLX");
288 return (str);
289 }
290
291 switch (ha->fw_attributes & 0xFF) {
292 case 0x7:
293 strcat(str, "EF");
294 break;
295 case 0x17:
296 strcat(str, "TP");
297 break;
298 case 0x37:
299 strcat(str, "IP");
300 break;
301 case 0x77:
302 strcat(str, "VI");
303 break;
304 default:
305 sprintf(un_str, "(%x)", ha->fw_attributes);
306 strcat(str, un_str);
307 break;
308 }
309 if (ha->fw_attributes & 0x100)
310 strcat(str, "X");
311
312 return (str);
313 }
314
315 char *
316 qla24xx_fw_version_str(struct scsi_qla_host *ha, char *str)
317 {
318 sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
319 ha->fw_minor_version,
320 ha->fw_subminor_version);
321
322 if (ha->fw_attributes & BIT_0)
323 strcat(str, "[Class 2] ");
324 if (ha->fw_attributes & BIT_1)
325 strcat(str, "[IP] ");
326 if (ha->fw_attributes & BIT_2)
327 strcat(str, "[Multi-ID] ");
328 if (ha->fw_attributes & BIT_13)
329 strcat(str, "[Experimental]");
330 return str;
331 }
332
333 static inline srb_t *
334 qla2x00_get_new_sp(scsi_qla_host_t *ha, fc_port_t *fcport,
335 struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
336 {
337 srb_t *sp;
338
339 sp = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
340 if (!sp)
341 return sp;
342
343 atomic_set(&sp->ref_count, 1);
344 sp->ha = ha;
345 sp->fcport = fcport;
346 sp->cmd = cmd;
347 sp->flags = 0;
348 CMD_SP(cmd) = (void *)sp;
349 cmd->scsi_done = done;
350
351 return sp;
352 }
353
354 static int
355 qla2x00_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
356 {
357 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
358 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
359 struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
360 srb_t *sp;
361 int rval;
362
363 rval = fc_remote_port_chkready(rport);
364 if (rval) {
365 cmd->result = rval;
366 goto qc_fail_command;
367 }
368
369 /* Close window on fcport/rport state-transitioning. */
370 if (!*(fc_port_t **)rport->dd_data) {
371 cmd->result = DID_IMM_RETRY << 16;
372 goto qc_fail_command;
373 }
374
375 if (atomic_read(&fcport->state) != FCS_ONLINE) {
376 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
377 atomic_read(&ha->loop_state) == LOOP_DEAD) {
378 cmd->result = DID_NO_CONNECT << 16;
379 goto qc_fail_command;
380 }
381 goto qc_host_busy;
382 }
383
384 spin_unlock_irq(ha->host->host_lock);
385
386 sp = qla2x00_get_new_sp(ha, fcport, cmd, done);
387 if (!sp)
388 goto qc_host_busy_lock;
389
390 rval = qla2x00_start_scsi(sp);
391 if (rval != QLA_SUCCESS)
392 goto qc_host_busy_free_sp;
393
394 spin_lock_irq(ha->host->host_lock);
395
396 return 0;
397
398 qc_host_busy_free_sp:
399 qla2x00_sp_free_dma(ha, sp);
400 mempool_free(sp, ha->srb_mempool);
401
402 qc_host_busy_lock:
403 spin_lock_irq(ha->host->host_lock);
404
405 qc_host_busy:
406 return SCSI_MLQUEUE_HOST_BUSY;
407
408 qc_fail_command:
409 done(cmd);
410
411 return 0;
412 }
413
414
415 static int
416 qla24xx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
417 {
418 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
419 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
420 struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
421 srb_t *sp;
422 int rval;
423
424 rval = fc_remote_port_chkready(rport);
425 if (rval) {
426 cmd->result = rval;
427 goto qc24_fail_command;
428 }
429
430 /* Close window on fcport/rport state-transitioning. */
431 if (!*(fc_port_t **)rport->dd_data) {
432 cmd->result = DID_IMM_RETRY << 16;
433 goto qc24_fail_command;
434 }
435
436 if (atomic_read(&fcport->state) != FCS_ONLINE) {
437 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
438 atomic_read(&ha->loop_state) == LOOP_DEAD) {
439 cmd->result = DID_NO_CONNECT << 16;
440 goto qc24_fail_command;
441 }
442 goto qc24_host_busy;
443 }
444
445 spin_unlock_irq(ha->host->host_lock);
446
447 sp = qla2x00_get_new_sp(ha, fcport, cmd, done);
448 if (!sp)
449 goto qc24_host_busy_lock;
450
451 rval = qla24xx_start_scsi(sp);
452 if (rval != QLA_SUCCESS)
453 goto qc24_host_busy_free_sp;
454
455 spin_lock_irq(ha->host->host_lock);
456
457 return 0;
458
459 qc24_host_busy_free_sp:
460 qla2x00_sp_free_dma(ha, sp);
461 mempool_free(sp, ha->srb_mempool);
462
463 qc24_host_busy_lock:
464 spin_lock_irq(ha->host->host_lock);
465
466 qc24_host_busy:
467 return SCSI_MLQUEUE_HOST_BUSY;
468
469 qc24_fail_command:
470 done(cmd);
471
472 return 0;
473 }
474
475
476 /*
477 * qla2x00_eh_wait_on_command
478 * Waits for the command to be returned by the Firmware for some
479 * max time.
480 *
481 * Input:
482 * ha = actual ha whose done queue will contain the command
483 * returned by firmware.
484 * cmd = Scsi Command to wait on.
485 * flag = Abort/Reset(Bus or Device Reset)
486 *
487 * Return:
488 * Not Found : 0
489 * Found : 1
490 */
491 static int
492 qla2x00_eh_wait_on_command(scsi_qla_host_t *ha, struct scsi_cmnd *cmd)
493 {
494 #define ABORT_POLLING_PERIOD 1000
495 #define ABORT_WAIT_ITER ((10 * 1000) / (ABORT_POLLING_PERIOD))
496 unsigned long wait_iter = ABORT_WAIT_ITER;
497 int ret = QLA_SUCCESS;
498
499 while (CMD_SP(cmd)) {
500 msleep(ABORT_POLLING_PERIOD);
501
502 if (--wait_iter)
503 break;
504 }
505 if (CMD_SP(cmd))
506 ret = QLA_FUNCTION_FAILED;
507
508 return ret;
509 }
510
511 /*
512 * qla2x00_wait_for_hba_online
513 * Wait till the HBA is online after going through
514 * <= MAX_RETRIES_OF_ISP_ABORT or
515 * finally HBA is disabled ie marked offline
516 *
517 * Input:
518 * ha - pointer to host adapter structure
519 *
520 * Note:
521 * Does context switching-Release SPIN_LOCK
522 * (if any) before calling this routine.
523 *
524 * Return:
525 * Success (Adapter is online) : 0
526 * Failed (Adapter is offline/disabled) : 1
527 */
528 int
529 qla2x00_wait_for_hba_online(scsi_qla_host_t *ha)
530 {
531 int return_status;
532 unsigned long wait_online;
533
534 wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
535 while (((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) ||
536 test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags) ||
537 test_bit(ISP_ABORT_RETRY, &ha->dpc_flags) ||
538 ha->dpc_active) && time_before(jiffies, wait_online)) {
539
540 msleep(1000);
541 }
542 if (ha->flags.online)
543 return_status = QLA_SUCCESS;
544 else
545 return_status = QLA_FUNCTION_FAILED;
546
547 DEBUG2(printk("%s return_status=%d\n",__func__,return_status));
548
549 return (return_status);
550 }
551
552 /*
553 * qla2x00_wait_for_loop_ready
554 * Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
555 * to be in LOOP_READY state.
556 * Input:
557 * ha - pointer to host adapter structure
558 *
559 * Note:
560 * Does context switching-Release SPIN_LOCK
561 * (if any) before calling this routine.
562 *
563 *
564 * Return:
565 * Success (LOOP_READY) : 0
566 * Failed (LOOP_NOT_READY) : 1
567 */
568 static inline int
569 qla2x00_wait_for_loop_ready(scsi_qla_host_t *ha)
570 {
571 int return_status = QLA_SUCCESS;
572 unsigned long loop_timeout ;
573
574 /* wait for 5 min at the max for loop to be ready */
575 loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ);
576
577 while ((!atomic_read(&ha->loop_down_timer) &&
578 atomic_read(&ha->loop_state) == LOOP_DOWN) ||
579 atomic_read(&ha->loop_state) != LOOP_READY) {
580 msleep(1000);
581 if (time_after_eq(jiffies, loop_timeout)) {
582 return_status = QLA_FUNCTION_FAILED;
583 break;
584 }
585 }
586 return (return_status);
587 }
588
589 /**************************************************************************
590 * qla2xxx_eh_abort
591 *
592 * Description:
593 * The abort function will abort the specified command.
594 *
595 * Input:
596 * cmd = Linux SCSI command packet to be aborted.
597 *
598 * Returns:
599 * Either SUCCESS or FAILED.
600 *
601 * Note:
602 * Only return FAILED if command not returned by firmware.
603 **************************************************************************/
604 int
605 qla2xxx_eh_abort(struct scsi_cmnd *cmd)
606 {
607 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
608 srb_t *sp;
609 int ret, i;
610 unsigned int id, lun;
611 unsigned long serial;
612 unsigned long flags;
613 int wait = 0;
614
615 if (!CMD_SP(cmd))
616 return SUCCESS;
617
618 ret = SUCCESS;
619
620 id = cmd->device->id;
621 lun = cmd->device->lun;
622 serial = cmd->serial_number;
623
624 /* Check active list for command command. */
625 spin_lock_irqsave(&ha->hardware_lock, flags);
626 for (i = 1; i < MAX_OUTSTANDING_COMMANDS; i++) {
627 sp = ha->outstanding_cmds[i];
628
629 if (sp == NULL)
630 continue;
631
632 if (sp->cmd != cmd)
633 continue;
634
635 DEBUG2(printk("%s(%ld): aborting sp %p from RISC. pid=%ld "
636 "sp->state=%x\n", __func__, ha->host_no, sp, serial,
637 sp->state));
638 DEBUG3(qla2x00_print_scsi_cmd(cmd);)
639
640 spin_unlock_irqrestore(&ha->hardware_lock, flags);
641 if (ha->isp_ops.abort_command(ha, sp)) {
642 DEBUG2(printk("%s(%ld): abort_command "
643 "mbx failed.\n", __func__, ha->host_no));
644 } else {
645 DEBUG3(printk("%s(%ld): abort_command "
646 "mbx success.\n", __func__, ha->host_no));
647 wait = 1;
648 }
649 spin_lock_irqsave(&ha->hardware_lock, flags);
650
651 break;
652 }
653 spin_unlock_irqrestore(&ha->hardware_lock, flags);
654
655 /* Wait for the command to be returned. */
656 if (wait) {
657 if (qla2x00_eh_wait_on_command(ha, cmd) != QLA_SUCCESS) {
658 qla_printk(KERN_ERR, ha,
659 "scsi(%ld:%d:%d): Abort handler timed out -- %lx "
660 "%x.\n", ha->host_no, id, lun, serial, ret);
661 ret = FAILED;
662 }
663 }
664
665 qla_printk(KERN_INFO, ha,
666 "scsi(%ld:%d:%d): Abort command issued -- %d %lx %x.\n",
667 ha->host_no, id, lun, wait, serial, ret);
668
669 return ret;
670 }
671
672 /**************************************************************************
673 * qla2x00_eh_wait_for_pending_target_commands
674 *
675 * Description:
676 * Waits for all the commands to come back from the specified target.
677 *
678 * Input:
679 * ha - pointer to scsi_qla_host structure.
680 * t - target
681 * Returns:
682 * Either SUCCESS or FAILED.
683 *
684 * Note:
685 **************************************************************************/
686 static int
687 qla2x00_eh_wait_for_pending_target_commands(scsi_qla_host_t *ha, unsigned int t)
688 {
689 int cnt;
690 int status;
691 srb_t *sp;
692 struct scsi_cmnd *cmd;
693 unsigned long flags;
694
695 status = 0;
696
697 /*
698 * Waiting for all commands for the designated target in the active
699 * array
700 */
701 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
702 spin_lock_irqsave(&ha->hardware_lock, flags);
703 sp = ha->outstanding_cmds[cnt];
704 if (sp) {
705 cmd = sp->cmd;
706 spin_unlock_irqrestore(&ha->hardware_lock, flags);
707 if (cmd->device->id == t) {
708 if (!qla2x00_eh_wait_on_command(ha, cmd)) {
709 status = 1;
710 break;
711 }
712 }
713 } else {
714 spin_unlock_irqrestore(&ha->hardware_lock, flags);
715 }
716 }
717 return (status);
718 }
719
720
721 /**************************************************************************
722 * qla2xxx_eh_device_reset
723 *
724 * Description:
725 * The device reset function will reset the target and abort any
726 * executing commands.
727 *
728 * NOTE: The use of SP is undefined within this context. Do *NOT*
729 * attempt to use this value, even if you determine it is
730 * non-null.
731 *
732 * Input:
733 * cmd = Linux SCSI command packet of the command that cause the
734 * bus device reset.
735 *
736 * Returns:
737 * SUCCESS/FAILURE (defined as macro in scsi.h).
738 *
739 **************************************************************************/
740 int
741 qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
742 {
743 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
744 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
745 srb_t *sp;
746 int ret;
747 unsigned int id, lun;
748 unsigned long serial;
749
750 ret = FAILED;
751
752 id = cmd->device->id;
753 lun = cmd->device->lun;
754 serial = cmd->serial_number;
755
756 sp = (srb_t *) CMD_SP(cmd);
757 if (!sp || !fcport)
758 return ret;
759
760 qla_printk(KERN_INFO, ha,
761 "scsi(%ld:%d:%d): DEVICE RESET ISSUED.\n", ha->host_no, id, lun);
762
763 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
764 goto eh_dev_reset_done;
765
766 if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
767 if (qla2x00_device_reset(ha, fcport) == 0)
768 ret = SUCCESS;
769
770 #if defined(LOGOUT_AFTER_DEVICE_RESET)
771 if (ret == SUCCESS) {
772 if (fcport->flags & FC_FABRIC_DEVICE) {
773 ha->isp_ops.fabric_logout(ha, fcport->loop_id);
774 qla2x00_mark_device_lost(ha, fcport, 0, 0);
775 }
776 }
777 #endif
778 } else {
779 DEBUG2(printk(KERN_INFO
780 "%s failed: loop not ready\n",__func__);)
781 }
782
783 if (ret == FAILED) {
784 DEBUG3(printk("%s(%ld): device reset failed\n",
785 __func__, ha->host_no));
786 qla_printk(KERN_INFO, ha, "%s: device reset failed\n",
787 __func__);
788
789 goto eh_dev_reset_done;
790 }
791
792 /* Flush outstanding commands. */
793 if (qla2x00_eh_wait_for_pending_target_commands(ha, id))
794 ret = FAILED;
795 if (ret == FAILED) {
796 DEBUG3(printk("%s(%ld): failed while waiting for commands\n",
797 __func__, ha->host_no));
798 qla_printk(KERN_INFO, ha,
799 "%s: failed while waiting for commands\n", __func__);
800 } else
801 qla_printk(KERN_INFO, ha,
802 "scsi(%ld:%d:%d): DEVICE RESET SUCCEEDED.\n", ha->host_no,
803 id, lun);
804 eh_dev_reset_done:
805 return ret;
806 }
807
808 /**************************************************************************
809 * qla2x00_eh_wait_for_pending_commands
810 *
811 * Description:
812 * Waits for all the commands to come back from the specified host.
813 *
814 * Input:
815 * ha - pointer to scsi_qla_host structure.
816 *
817 * Returns:
818 * 1 : SUCCESS
819 * 0 : FAILED
820 *
821 * Note:
822 **************************************************************************/
823 static int
824 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *ha)
825 {
826 int cnt;
827 int status;
828 srb_t *sp;
829 struct scsi_cmnd *cmd;
830 unsigned long flags;
831
832 status = 1;
833
834 /*
835 * Waiting for all commands for the designated target in the active
836 * array
837 */
838 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
839 spin_lock_irqsave(&ha->hardware_lock, flags);
840 sp = ha->outstanding_cmds[cnt];
841 if (sp) {
842 cmd = sp->cmd;
843 spin_unlock_irqrestore(&ha->hardware_lock, flags);
844 status = qla2x00_eh_wait_on_command(ha, cmd);
845 if (status == 0)
846 break;
847 }
848 else {
849 spin_unlock_irqrestore(&ha->hardware_lock, flags);
850 }
851 }
852 return (status);
853 }
854
855
856 /**************************************************************************
857 * qla2xxx_eh_bus_reset
858 *
859 * Description:
860 * The bus reset function will reset the bus and abort any executing
861 * commands.
862 *
863 * Input:
864 * cmd = Linux SCSI command packet of the command that cause the
865 * bus reset.
866 *
867 * Returns:
868 * SUCCESS/FAILURE (defined as macro in scsi.h).
869 *
870 **************************************************************************/
871 int
872 qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
873 {
874 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
875 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
876 srb_t *sp;
877 int ret;
878 unsigned int id, lun;
879 unsigned long serial;
880
881 ret = FAILED;
882
883 id = cmd->device->id;
884 lun = cmd->device->lun;
885 serial = cmd->serial_number;
886
887 sp = (srb_t *) CMD_SP(cmd);
888 if (!sp || !fcport)
889 return ret;
890
891 qla_printk(KERN_INFO, ha,
892 "scsi(%ld:%d:%d): LOOP RESET ISSUED.\n", ha->host_no, id, lun);
893
894 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS) {
895 DEBUG2(printk("%s failed:board disabled\n",__func__));
896 goto eh_bus_reset_done;
897 }
898
899 if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
900 if (qla2x00_loop_reset(ha) == QLA_SUCCESS)
901 ret = SUCCESS;
902 }
903 if (ret == FAILED)
904 goto eh_bus_reset_done;
905
906 /* Flush outstanding commands. */
907 if (!qla2x00_eh_wait_for_pending_commands(ha))
908 ret = FAILED;
909
910 eh_bus_reset_done:
911 qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
912 (ret == FAILED) ? "failed" : "succeded");
913
914 return ret;
915 }
916
917 /**************************************************************************
918 * qla2xxx_eh_host_reset
919 *
920 * Description:
921 * The reset function will reset the Adapter.
922 *
923 * Input:
924 * cmd = Linux SCSI command packet of the command that cause the
925 * adapter reset.
926 *
927 * Returns:
928 * Either SUCCESS or FAILED.
929 *
930 * Note:
931 **************************************************************************/
932 int
933 qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
934 {
935 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
936 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
937 srb_t *sp;
938 int ret;
939 unsigned int id, lun;
940 unsigned long serial;
941
942 ret = FAILED;
943
944 id = cmd->device->id;
945 lun = cmd->device->lun;
946 serial = cmd->serial_number;
947
948 sp = (srb_t *) CMD_SP(cmd);
949 if (!sp || !fcport)
950 return ret;
951
952 qla_printk(KERN_INFO, ha,
953 "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", ha->host_no, id, lun);
954
955 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
956 goto eh_host_reset_lock;
957
958 /*
959 * Fixme-may be dpc thread is active and processing
960 * loop_resync,so wait a while for it to
961 * be completed and then issue big hammer.Otherwise
962 * it may cause I/O failure as big hammer marks the
963 * devices as lost kicking of the port_down_timer
964 * while dpc is stuck for the mailbox to complete.
965 */
966 qla2x00_wait_for_loop_ready(ha);
967 set_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
968 if (qla2x00_abort_isp(ha)) {
969 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
970 /* failed. schedule dpc to try */
971 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
972
973 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
974 goto eh_host_reset_lock;
975 }
976 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
977
978 /* Waiting for our command in done_queue to be returned to OS.*/
979 if (qla2x00_eh_wait_for_pending_commands(ha))
980 ret = SUCCESS;
981
982 eh_host_reset_lock:
983 qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
984 (ret == FAILED) ? "failed" : "succeded");
985
986 return ret;
987 }
988
989 /*
990 * qla2x00_loop_reset
991 * Issue loop reset.
992 *
993 * Input:
994 * ha = adapter block pointer.
995 *
996 * Returns:
997 * 0 = success
998 */
999 static int
1000 qla2x00_loop_reset(scsi_qla_host_t *ha)
1001 {
1002 int status = QLA_SUCCESS;
1003 struct fc_port *fcport;
1004
1005 if (ha->flags.enable_lip_reset) {
1006 status = qla2x00_lip_reset(ha);
1007 }
1008
1009 if (status == QLA_SUCCESS && ha->flags.enable_target_reset) {
1010 list_for_each_entry(fcport, &ha->fcports, list) {
1011 if (fcport->port_type != FCT_TARGET)
1012 continue;
1013
1014 status = qla2x00_device_reset(ha, fcport);
1015 if (status != QLA_SUCCESS)
1016 break;
1017 }
1018 }
1019
1020 if (status == QLA_SUCCESS &&
1021 ((!ha->flags.enable_target_reset &&
1022 !ha->flags.enable_lip_reset) ||
1023 ha->flags.enable_lip_full_login)) {
1024
1025 status = qla2x00_full_login_lip(ha);
1026 }
1027
1028 /* Issue marker command only when we are going to start the I/O */
1029 ha->marker_needed = 1;
1030
1031 if (status) {
1032 /* Empty */
1033 DEBUG2_3(printk("%s(%ld): **** FAILED ****\n",
1034 __func__,
1035 ha->host_no);)
1036 } else {
1037 /* Empty */
1038 DEBUG3(printk("%s(%ld): exiting normally.\n",
1039 __func__,
1040 ha->host_no);)
1041 }
1042
1043 return(status);
1044 }
1045
1046 /*
1047 * qla2x00_device_reset
1048 * Issue bus device reset message to the target.
1049 *
1050 * Input:
1051 * ha = adapter block pointer.
1052 * t = SCSI ID.
1053 * TARGET_QUEUE_LOCK must be released.
1054 * ADAPTER_STATE_LOCK must be released.
1055 *
1056 * Context:
1057 * Kernel context.
1058 */
1059 static int
1060 qla2x00_device_reset(scsi_qla_host_t *ha, fc_port_t *reset_fcport)
1061 {
1062 /* Abort Target command will clear Reservation */
1063 return ha->isp_ops.abort_target(reset_fcport);
1064 }
1065
1066 static int
1067 qla2xxx_slave_alloc(struct scsi_device *sdev)
1068 {
1069 struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1070
1071 if (!rport || fc_remote_port_chkready(rport))
1072 return -ENXIO;
1073
1074 sdev->hostdata = *(fc_port_t **)rport->dd_data;
1075
1076 return 0;
1077 }
1078
1079 static int
1080 qla2xxx_slave_configure(struct scsi_device *sdev)
1081 {
1082 scsi_qla_host_t *ha = to_qla_host(sdev->host);
1083 struct fc_rport *rport = starget_to_rport(sdev->sdev_target);
1084
1085 if (sdev->tagged_supported)
1086 scsi_activate_tcq(sdev, 32);
1087 else
1088 scsi_deactivate_tcq(sdev, 32);
1089
1090 rport->dev_loss_tmo = ha->port_down_retry_count + 5;
1091
1092 return 0;
1093 }
1094
1095 static void
1096 qla2xxx_slave_destroy(struct scsi_device *sdev)
1097 {
1098 sdev->hostdata = NULL;
1099 }
1100
1101 static int
1102 qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth)
1103 {
1104 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1105 return sdev->queue_depth;
1106 }
1107
1108 static int
1109 qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1110 {
1111 if (sdev->tagged_supported) {
1112 scsi_set_tag_type(sdev, tag_type);
1113 if (tag_type)
1114 scsi_activate_tcq(sdev, sdev->queue_depth);
1115 else
1116 scsi_deactivate_tcq(sdev, sdev->queue_depth);
1117 } else
1118 tag_type = 0;
1119
1120 return tag_type;
1121 }
1122
1123 /**
1124 * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1125 * @ha: HA context
1126 *
1127 * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1128 * supported addressing method.
1129 */
1130 static void
1131 qla2x00_config_dma_addressing(scsi_qla_host_t *ha)
1132 {
1133 /* Assume a 32bit DMA mask. */
1134 ha->flags.enable_64bit_addressing = 0;
1135
1136 if (!dma_set_mask(&ha->pdev->dev, DMA_64BIT_MASK)) {
1137 /* Any upper-dword bits set? */
1138 if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1139 !pci_set_consistent_dma_mask(ha->pdev, DMA_64BIT_MASK)) {
1140 /* Ok, a 64bit DMA mask is applicable. */
1141 ha->flags.enable_64bit_addressing = 1;
1142 ha->isp_ops.calc_req_entries = qla2x00_calc_iocbs_64;
1143 ha->isp_ops.build_iocbs = qla2x00_build_scsi_iocbs_64;
1144 return;
1145 }
1146 }
1147
1148 dma_set_mask(&ha->pdev->dev, DMA_32BIT_MASK);
1149 pci_set_consistent_dma_mask(ha->pdev, DMA_32BIT_MASK);
1150 }
1151
1152 static inline void
1153 qla2x00_set_isp_flags(scsi_qla_host_t *ha)
1154 {
1155 ha->device_type = DT_EXTENDED_IDS;
1156 switch (ha->pdev->device) {
1157 case PCI_DEVICE_ID_QLOGIC_ISP2100:
1158 ha->device_type |= DT_ISP2100;
1159 ha->device_type &= ~DT_EXTENDED_IDS;
1160 break;
1161 case PCI_DEVICE_ID_QLOGIC_ISP2200:
1162 ha->device_type |= DT_ISP2200;
1163 ha->device_type &= ~DT_EXTENDED_IDS;
1164 break;
1165 case PCI_DEVICE_ID_QLOGIC_ISP2300:
1166 ha->device_type |= DT_ISP2300;
1167 ha->device_type |= DT_ZIO_SUPPORTED;
1168 break;
1169 case PCI_DEVICE_ID_QLOGIC_ISP2312:
1170 ha->device_type |= DT_ISP2312;
1171 ha->device_type |= DT_ZIO_SUPPORTED;
1172 break;
1173 case PCI_DEVICE_ID_QLOGIC_ISP2322:
1174 ha->device_type |= DT_ISP2322;
1175 ha->device_type |= DT_ZIO_SUPPORTED;
1176 if (ha->pdev->subsystem_vendor == 0x1028 &&
1177 ha->pdev->subsystem_device == 0x0170)
1178 ha->device_type |= DT_OEM_001;
1179 break;
1180 case PCI_DEVICE_ID_QLOGIC_ISP6312:
1181 ha->device_type |= DT_ISP6312;
1182 break;
1183 case PCI_DEVICE_ID_QLOGIC_ISP6322:
1184 ha->device_type |= DT_ISP6322;
1185 break;
1186 case PCI_DEVICE_ID_QLOGIC_ISP2422:
1187 ha->device_type |= DT_ISP2422;
1188 ha->device_type |= DT_ZIO_SUPPORTED;
1189 break;
1190 case PCI_DEVICE_ID_QLOGIC_ISP2432:
1191 ha->device_type |= DT_ISP2432;
1192 ha->device_type |= DT_ZIO_SUPPORTED;
1193 break;
1194 case PCI_DEVICE_ID_QLOGIC_ISP5422:
1195 ha->device_type |= DT_ISP5422;
1196 break;
1197 case PCI_DEVICE_ID_QLOGIC_ISP5432:
1198 ha->device_type |= DT_ISP5432;
1199 break;
1200 }
1201 }
1202
1203 static int
1204 qla2x00_iospace_config(scsi_qla_host_t *ha)
1205 {
1206 unsigned long pio, pio_len, pio_flags;
1207 unsigned long mmio, mmio_len, mmio_flags;
1208
1209 /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1210 pio = pci_resource_start(ha->pdev, 0);
1211 pio_len = pci_resource_len(ha->pdev, 0);
1212 pio_flags = pci_resource_flags(ha->pdev, 0);
1213 if (pio_flags & IORESOURCE_IO) {
1214 if (pio_len < MIN_IOBASE_LEN) {
1215 qla_printk(KERN_WARNING, ha,
1216 "Invalid PCI I/O region size (%s)...\n",
1217 pci_name(ha->pdev));
1218 pio = 0;
1219 }
1220 } else {
1221 qla_printk(KERN_WARNING, ha,
1222 "region #0 not a PIO resource (%s)...\n",
1223 pci_name(ha->pdev));
1224 pio = 0;
1225 }
1226
1227 /* Use MMIO operations for all accesses. */
1228 mmio = pci_resource_start(ha->pdev, 1);
1229 mmio_len = pci_resource_len(ha->pdev, 1);
1230 mmio_flags = pci_resource_flags(ha->pdev, 1);
1231
1232 if (!(mmio_flags & IORESOURCE_MEM)) {
1233 qla_printk(KERN_ERR, ha,
1234 "region #0 not an MMIO resource (%s), aborting\n",
1235 pci_name(ha->pdev));
1236 goto iospace_error_exit;
1237 }
1238 if (mmio_len < MIN_IOBASE_LEN) {
1239 qla_printk(KERN_ERR, ha,
1240 "Invalid PCI mem region size (%s), aborting\n",
1241 pci_name(ha->pdev));
1242 goto iospace_error_exit;
1243 }
1244
1245 if (pci_request_regions(ha->pdev, ha->brd_info->drv_name)) {
1246 qla_printk(KERN_WARNING, ha,
1247 "Failed to reserve PIO/MMIO regions (%s)\n",
1248 pci_name(ha->pdev));
1249
1250 goto iospace_error_exit;
1251 }
1252
1253 ha->pio_address = pio;
1254 ha->pio_length = pio_len;
1255 ha->iobase = ioremap(mmio, MIN_IOBASE_LEN);
1256 if (!ha->iobase) {
1257 qla_printk(KERN_ERR, ha,
1258 "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
1259
1260 goto iospace_error_exit;
1261 }
1262
1263 return (0);
1264
1265 iospace_error_exit:
1266 return (-ENOMEM);
1267 }
1268
1269 static void
1270 qla2x00_enable_intrs(scsi_qla_host_t *ha)
1271 {
1272 unsigned long flags = 0;
1273 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1274
1275 spin_lock_irqsave(&ha->hardware_lock, flags);
1276 ha->interrupts_on = 1;
1277 /* enable risc and host interrupts */
1278 WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1279 RD_REG_WORD(&reg->ictrl);
1280 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1281
1282 }
1283
1284 static void
1285 qla2x00_disable_intrs(scsi_qla_host_t *ha)
1286 {
1287 unsigned long flags = 0;
1288 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1289
1290 spin_lock_irqsave(&ha->hardware_lock, flags);
1291 ha->interrupts_on = 0;
1292 /* disable risc and host interrupts */
1293 WRT_REG_WORD(&reg->ictrl, 0);
1294 RD_REG_WORD(&reg->ictrl);
1295 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1296 }
1297
1298 static void
1299 qla24xx_enable_intrs(scsi_qla_host_t *ha)
1300 {
1301 unsigned long flags = 0;
1302 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1303
1304 spin_lock_irqsave(&ha->hardware_lock, flags);
1305 ha->interrupts_on = 1;
1306 WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1307 RD_REG_DWORD(&reg->ictrl);
1308 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1309 }
1310
1311 static void
1312 qla24xx_disable_intrs(scsi_qla_host_t *ha)
1313 {
1314 unsigned long flags = 0;
1315 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1316
1317 spin_lock_irqsave(&ha->hardware_lock, flags);
1318 ha->interrupts_on = 0;
1319 WRT_REG_DWORD(&reg->ictrl, 0);
1320 RD_REG_DWORD(&reg->ictrl);
1321 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1322 }
1323
1324 /*
1325 * PCI driver interface
1326 */
1327 int qla2x00_probe_one(struct pci_dev *pdev, struct qla_board_info *brd_info)
1328 {
1329 int ret = -ENODEV;
1330 device_reg_t __iomem *reg;
1331 struct Scsi_Host *host;
1332 scsi_qla_host_t *ha;
1333 unsigned long flags = 0;
1334 unsigned long wait_switch = 0;
1335 char pci_info[20];
1336 char fw_str[30];
1337 fc_port_t *fcport;
1338 struct scsi_host_template *sht;
1339
1340 if (pci_enable_device(pdev))
1341 goto probe_out;
1342
1343 sht = &qla2x00_driver_template;
1344 if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
1345 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432)
1346 sht = &qla24xx_driver_template;
1347 host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
1348 if (host == NULL) {
1349 printk(KERN_WARNING
1350 "qla2xxx: Couldn't allocate host from scsi layer!\n");
1351 goto probe_disable_device;
1352 }
1353
1354 /* Clear our data area */
1355 ha = (scsi_qla_host_t *)host->hostdata;
1356 memset(ha, 0, sizeof(scsi_qla_host_t));
1357
1358 ha->pdev = pdev;
1359 ha->host = host;
1360 ha->host_no = host->host_no;
1361 ha->brd_info = brd_info;
1362 sprintf(ha->host_str, "%s_%ld", ha->brd_info->drv_name, ha->host_no);
1363
1364 /* Set ISP-type information. */
1365 qla2x00_set_isp_flags(ha);
1366
1367 /* Configure PCI I/O space */
1368 ret = qla2x00_iospace_config(ha);
1369 if (ret)
1370 goto probe_failed;
1371
1372 qla_printk(KERN_INFO, ha,
1373 "Found an ISP%04X, irq %d, iobase 0x%p\n", pdev->device, pdev->irq,
1374 ha->iobase);
1375
1376 spin_lock_init(&ha->hardware_lock);
1377
1378 ha->prev_topology = 0;
1379 ha->ports = MAX_BUSES;
1380 ha->init_cb_size = sizeof(init_cb_t);
1381 ha->mgmt_svr_loop_id = MANAGEMENT_SERVER;
1382 ha->link_data_rate = LDR_UNKNOWN;
1383 ha->optrom_size = OPTROM_SIZE_2300;
1384
1385 /* Assign ISP specific operations. */
1386 ha->isp_ops.pci_config = qla2100_pci_config;
1387 ha->isp_ops.reset_chip = qla2x00_reset_chip;
1388 ha->isp_ops.chip_diag = qla2x00_chip_diag;
1389 ha->isp_ops.config_rings = qla2x00_config_rings;
1390 ha->isp_ops.reset_adapter = qla2x00_reset_adapter;
1391 ha->isp_ops.nvram_config = qla2x00_nvram_config;
1392 ha->isp_ops.update_fw_options = qla2x00_update_fw_options;
1393 ha->isp_ops.load_risc = qla2x00_load_risc;
1394 ha->isp_ops.pci_info_str = qla2x00_pci_info_str;
1395 ha->isp_ops.fw_version_str = qla2x00_fw_version_str;
1396 ha->isp_ops.intr_handler = qla2100_intr_handler;
1397 ha->isp_ops.enable_intrs = qla2x00_enable_intrs;
1398 ha->isp_ops.disable_intrs = qla2x00_disable_intrs;
1399 ha->isp_ops.abort_command = qla2x00_abort_command;
1400 ha->isp_ops.abort_target = qla2x00_abort_target;
1401 ha->isp_ops.fabric_login = qla2x00_login_fabric;
1402 ha->isp_ops.fabric_logout = qla2x00_fabric_logout;
1403 ha->isp_ops.calc_req_entries = qla2x00_calc_iocbs_32;
1404 ha->isp_ops.build_iocbs = qla2x00_build_scsi_iocbs_32;
1405 ha->isp_ops.prep_ms_iocb = qla2x00_prep_ms_iocb;
1406 ha->isp_ops.prep_ms_fdmi_iocb = qla2x00_prep_ms_fdmi_iocb;
1407 ha->isp_ops.read_nvram = qla2x00_read_nvram_data;
1408 ha->isp_ops.write_nvram = qla2x00_write_nvram_data;
1409 ha->isp_ops.fw_dump = qla2100_fw_dump;
1410 ha->isp_ops.ascii_fw_dump = qla2100_ascii_fw_dump;
1411 ha->isp_ops.read_optrom = qla2x00_read_optrom_data;
1412 ha->isp_ops.write_optrom = qla2x00_write_optrom_data;
1413 if (IS_QLA2100(ha)) {
1414 host->max_id = MAX_TARGETS_2100;
1415 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
1416 ha->request_q_length = REQUEST_ENTRY_CNT_2100;
1417 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1418 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1419 host->sg_tablesize = 32;
1420 ha->gid_list_info_size = 4;
1421 } else if (IS_QLA2200(ha)) {
1422 host->max_id = MAX_TARGETS_2200;
1423 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1424 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1425 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1426 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1427 ha->gid_list_info_size = 4;
1428 } else if (IS_QLA23XX(ha)) {
1429 host->max_id = MAX_TARGETS_2200;
1430 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1431 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1432 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1433 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1434 ha->isp_ops.pci_config = qla2300_pci_config;
1435 ha->isp_ops.intr_handler = qla2300_intr_handler;
1436 ha->isp_ops.fw_dump = qla2300_fw_dump;
1437 ha->isp_ops.ascii_fw_dump = qla2300_ascii_fw_dump;
1438 ha->isp_ops.beacon_on = qla2x00_beacon_on;
1439 ha->isp_ops.beacon_off = qla2x00_beacon_off;
1440 ha->isp_ops.beacon_blink = qla2x00_beacon_blink;
1441 ha->gid_list_info_size = 6;
1442 if (IS_QLA2322(ha) || IS_QLA6322(ha))
1443 ha->optrom_size = OPTROM_SIZE_2322;
1444 } else if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
1445 host->max_id = MAX_TARGETS_2200;
1446 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1447 ha->request_q_length = REQUEST_ENTRY_CNT_24XX;
1448 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1449 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1450 ha->init_cb_size = sizeof(struct init_cb_24xx);
1451 ha->mgmt_svr_loop_id = 10;
1452 ha->isp_ops.pci_config = qla24xx_pci_config;
1453 ha->isp_ops.reset_chip = qla24xx_reset_chip;
1454 ha->isp_ops.chip_diag = qla24xx_chip_diag;
1455 ha->isp_ops.config_rings = qla24xx_config_rings;
1456 ha->isp_ops.reset_adapter = qla24xx_reset_adapter;
1457 ha->isp_ops.nvram_config = qla24xx_nvram_config;
1458 ha->isp_ops.update_fw_options = qla24xx_update_fw_options;
1459 ha->isp_ops.load_risc = qla24xx_load_risc;
1460 #if defined(CONFIG_SCSI_QLA2XXX_EMBEDDED_FIRMWARE)
1461 if (ql2xfwloadflash)
1462 ha->isp_ops.load_risc = qla24xx_load_risc_flash;
1463 #endif
1464 ha->isp_ops.pci_info_str = qla24xx_pci_info_str;
1465 ha->isp_ops.fw_version_str = qla24xx_fw_version_str;
1466 ha->isp_ops.intr_handler = qla24xx_intr_handler;
1467 ha->isp_ops.enable_intrs = qla24xx_enable_intrs;
1468 ha->isp_ops.disable_intrs = qla24xx_disable_intrs;
1469 ha->isp_ops.abort_command = qla24xx_abort_command;
1470 ha->isp_ops.abort_target = qla24xx_abort_target;
1471 ha->isp_ops.fabric_login = qla24xx_login_fabric;
1472 ha->isp_ops.fabric_logout = qla24xx_fabric_logout;
1473 ha->isp_ops.prep_ms_iocb = qla24xx_prep_ms_iocb;
1474 ha->isp_ops.prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb;
1475 ha->isp_ops.read_nvram = qla24xx_read_nvram_data;
1476 ha->isp_ops.write_nvram = qla24xx_write_nvram_data;
1477 ha->isp_ops.fw_dump = qla24xx_fw_dump;
1478 ha->isp_ops.ascii_fw_dump = qla24xx_ascii_fw_dump;
1479 ha->isp_ops.read_optrom = qla24xx_read_optrom_data;
1480 ha->isp_ops.write_optrom = qla24xx_write_optrom_data;
1481 ha->isp_ops.beacon_on = qla24xx_beacon_on;
1482 ha->isp_ops.beacon_off = qla24xx_beacon_off;
1483 ha->isp_ops.beacon_blink = qla24xx_beacon_blink;
1484 ha->gid_list_info_size = 8;
1485 ha->optrom_size = OPTROM_SIZE_24XX;
1486 }
1487 host->can_queue = ha->request_q_length + 128;
1488
1489 /* load the F/W, read paramaters, and init the H/W */
1490 ha->instance = num_hosts;
1491
1492 init_MUTEX(&ha->mbx_cmd_sem);
1493 init_MUTEX_LOCKED(&ha->mbx_intr_sem);
1494
1495 INIT_LIST_HEAD(&ha->list);
1496 INIT_LIST_HEAD(&ha->fcports);
1497 INIT_LIST_HEAD(&ha->rscn_fcports);
1498
1499 /*
1500 * These locks are used to prevent more than one CPU
1501 * from modifying the queue at the same time. The
1502 * higher level "host_lock" will reduce most
1503 * contention for these locks.
1504 */
1505 spin_lock_init(&ha->mbx_reg_lock);
1506
1507 qla2x00_config_dma_addressing(ha);
1508 if (qla2x00_mem_alloc(ha)) {
1509 qla_printk(KERN_WARNING, ha,
1510 "[ERROR] Failed to allocate memory for adapter\n");
1511
1512 ret = -ENOMEM;
1513 goto probe_failed;
1514 }
1515
1516 if (qla2x00_initialize_adapter(ha) &&
1517 !(ha->device_flags & DFLG_NO_CABLE)) {
1518
1519 qla_printk(KERN_WARNING, ha,
1520 "Failed to initialize adapter\n");
1521
1522 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
1523 "Adapter flags %x.\n",
1524 ha->host_no, ha->device_flags));
1525
1526 ret = -ENODEV;
1527 goto probe_failed;
1528 }
1529
1530 /*
1531 * Startup the kernel thread for this host adapter
1532 */
1533 ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
1534 "%s_dpc", ha->host_str);
1535 if (IS_ERR(ha->dpc_thread)) {
1536 qla_printk(KERN_WARNING, ha,
1537 "Unable to start DPC thread!\n");
1538 ret = PTR_ERR(ha->dpc_thread);
1539 goto probe_failed;
1540 }
1541
1542 host->this_id = 255;
1543 host->cmd_per_lun = 3;
1544 host->unique_id = ha->instance;
1545 host->max_cmd_len = MAX_CMDSZ;
1546 host->max_channel = ha->ports - 1;
1547 host->max_lun = MAX_LUNS;
1548 host->transportt = qla2xxx_transport_template;
1549
1550 ret = request_irq(pdev->irq, ha->isp_ops.intr_handler,
1551 SA_INTERRUPT|SA_SHIRQ, ha->brd_info->drv_name, ha);
1552 if (ret) {
1553 qla_printk(KERN_WARNING, ha,
1554 "Failed to reserve interrupt %d already in use.\n",
1555 pdev->irq);
1556 goto probe_failed;
1557 }
1558 host->irq = pdev->irq;
1559
1560 /* Initialized the timer */
1561 qla2x00_start_timer(ha, qla2x00_timer, WATCH_INTERVAL);
1562
1563 DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
1564 ha->host_no, ha));
1565
1566 ha->isp_ops.disable_intrs(ha);
1567
1568 spin_lock_irqsave(&ha->hardware_lock, flags);
1569 reg = ha->iobase;
1570 if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
1571 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_HOST_INT);
1572 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_RISC_INT);
1573 } else {
1574 WRT_REG_WORD(&reg->isp.semaphore, 0);
1575 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_RISC_INT);
1576 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_HOST_INT);
1577
1578 /* Enable proper parity */
1579 if (!IS_QLA2100(ha) && !IS_QLA2200(ha)) {
1580 if (IS_QLA2300(ha))
1581 /* SRAM parity */
1582 WRT_REG_WORD(&reg->isp.hccr,
1583 (HCCR_ENABLE_PARITY + 0x1));
1584 else
1585 /* SRAM, Instruction RAM and GP RAM parity */
1586 WRT_REG_WORD(&reg->isp.hccr,
1587 (HCCR_ENABLE_PARITY + 0x7));
1588 }
1589 }
1590 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1591
1592 ha->isp_ops.enable_intrs(ha);
1593
1594 /* v2.19.5b6 */
1595 /*
1596 * Wait around max loop_reset_delay secs for the devices to come
1597 * on-line. We don't want Linux scanning before we are ready.
1598 *
1599 */
1600 for (wait_switch = jiffies + (ha->loop_reset_delay * HZ);
1601 time_before(jiffies,wait_switch) &&
1602 !(ha->device_flags & (DFLG_NO_CABLE | DFLG_FABRIC_DEVICES))
1603 && (ha->device_flags & SWITCH_FOUND) ;) {
1604
1605 qla2x00_check_fabric_devices(ha);
1606
1607 msleep(10);
1608 }
1609
1610 pci_set_drvdata(pdev, ha);
1611 ha->flags.init_done = 1;
1612 num_hosts++;
1613
1614 ret = scsi_add_host(host, &pdev->dev);
1615 if (ret)
1616 goto probe_failed;
1617
1618 qla2x00_alloc_sysfs_attr(ha);
1619
1620 qla2x00_init_host_attr(ha);
1621
1622 qla_printk(KERN_INFO, ha, "\n"
1623 " QLogic Fibre Channel HBA Driver: %s\n"
1624 " QLogic %s - %s\n"
1625 " ISP%04X: %s @ %s hdma%c, host#=%ld, fw=%s\n",
1626 qla2x00_version_str, ha->model_number,
1627 ha->model_desc ? ha->model_desc: "", pdev->device,
1628 ha->isp_ops.pci_info_str(ha, pci_info), pci_name(pdev),
1629 ha->flags.enable_64bit_addressing ? '+': '-', ha->host_no,
1630 ha->isp_ops.fw_version_str(ha, fw_str));
1631
1632 /* Go with fc_rport registration. */
1633 list_for_each_entry(fcport, &ha->fcports, list)
1634 qla2x00_reg_remote_port(ha, fcport);
1635
1636 return 0;
1637
1638 probe_failed:
1639 qla2x00_free_device(ha);
1640
1641 scsi_host_put(host);
1642
1643 probe_disable_device:
1644 pci_disable_device(pdev);
1645
1646 probe_out:
1647 return ret;
1648 }
1649 EXPORT_SYMBOL_GPL(qla2x00_probe_one);
1650
1651 void qla2x00_remove_one(struct pci_dev *pdev)
1652 {
1653 scsi_qla_host_t *ha;
1654
1655 ha = pci_get_drvdata(pdev);
1656
1657 qla2x00_free_sysfs_attr(ha);
1658
1659 fc_remove_host(ha->host);
1660
1661 scsi_remove_host(ha->host);
1662
1663 qla2x00_free_device(ha);
1664
1665 scsi_host_put(ha->host);
1666
1667 pci_set_drvdata(pdev, NULL);
1668 }
1669 EXPORT_SYMBOL_GPL(qla2x00_remove_one);
1670
1671 static void
1672 qla2x00_free_device(scsi_qla_host_t *ha)
1673 {
1674 /* Abort any outstanding IO descriptors. */
1675 if (!IS_QLA2100(ha) && !IS_QLA2200(ha))
1676 qla2x00_cancel_io_descriptors(ha);
1677
1678 /* Disable timer */
1679 if (ha->timer_active)
1680 qla2x00_stop_timer(ha);
1681
1682 /* Kill the kernel thread for this host */
1683 if (ha->dpc_thread) {
1684 struct task_struct *t = ha->dpc_thread;
1685
1686 /*
1687 * qla2xxx_wake_dpc checks for ->dpc_thread
1688 * so we need to zero it out.
1689 */
1690 ha->dpc_thread = NULL;
1691 kthread_stop(t);
1692 }
1693
1694 /* Stop currently executing firmware. */
1695 qla2x00_stop_firmware(ha);
1696
1697 /* turn-off interrupts on the card */
1698 if (ha->interrupts_on)
1699 ha->isp_ops.disable_intrs(ha);
1700
1701 qla2x00_mem_free(ha);
1702
1703 ha->flags.online = 0;
1704
1705 /* Detach interrupts */
1706 if (ha->host->irq)
1707 free_irq(ha->host->irq, ha);
1708
1709 /* release io space registers */
1710 if (ha->iobase)
1711 iounmap(ha->iobase);
1712 pci_release_regions(ha->pdev);
1713
1714 pci_disable_device(ha->pdev);
1715 }
1716
1717 static inline void
1718 qla2x00_schedule_rport_del(struct scsi_qla_host *ha, fc_port_t *fcport,
1719 int defer)
1720 {
1721 unsigned long flags;
1722 struct fc_rport *rport;
1723
1724 if (!fcport->rport)
1725 return;
1726
1727 rport = fcport->rport;
1728 if (defer) {
1729 spin_lock_irqsave(&fcport->rport_lock, flags);
1730 fcport->drport = rport;
1731 fcport->rport = NULL;
1732 *(fc_port_t **)rport->dd_data = NULL;
1733 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1734 set_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags);
1735 } else {
1736 spin_lock_irqsave(&fcport->rport_lock, flags);
1737 fcport->rport = NULL;
1738 *(fc_port_t **)rport->dd_data = NULL;
1739 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1740 fc_remote_port_delete(rport);
1741 }
1742 }
1743
1744 /*
1745 * qla2x00_mark_device_lost Updates fcport state when device goes offline.
1746 *
1747 * Input: ha = adapter block pointer. fcport = port structure pointer.
1748 *
1749 * Return: None.
1750 *
1751 * Context:
1752 */
1753 void qla2x00_mark_device_lost(scsi_qla_host_t *ha, fc_port_t *fcport,
1754 int do_login, int defer)
1755 {
1756 if (atomic_read(&fcport->state) == FCS_ONLINE)
1757 qla2x00_schedule_rport_del(ha, fcport, defer);
1758
1759 /*
1760 * We may need to retry the login, so don't change the state of the
1761 * port but do the retries.
1762 */
1763 if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
1764 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1765
1766 if (!do_login)
1767 return;
1768
1769 if (fcport->login_retry == 0) {
1770 fcport->login_retry = ha->login_retry_count;
1771 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
1772
1773 DEBUG(printk("scsi(%ld): Port login retry: "
1774 "%02x%02x%02x%02x%02x%02x%02x%02x, "
1775 "id = 0x%04x retry cnt=%d\n",
1776 ha->host_no,
1777 fcport->port_name[0],
1778 fcport->port_name[1],
1779 fcport->port_name[2],
1780 fcport->port_name[3],
1781 fcport->port_name[4],
1782 fcport->port_name[5],
1783 fcport->port_name[6],
1784 fcport->port_name[7],
1785 fcport->loop_id,
1786 fcport->login_retry));
1787 }
1788 }
1789
1790 /*
1791 * qla2x00_mark_all_devices_lost
1792 * Updates fcport state when device goes offline.
1793 *
1794 * Input:
1795 * ha = adapter block pointer.
1796 * fcport = port structure pointer.
1797 *
1798 * Return:
1799 * None.
1800 *
1801 * Context:
1802 */
1803 void
1804 qla2x00_mark_all_devices_lost(scsi_qla_host_t *ha, int defer)
1805 {
1806 fc_port_t *fcport;
1807
1808 list_for_each_entry(fcport, &ha->fcports, list) {
1809 if (fcport->port_type != FCT_TARGET)
1810 continue;
1811
1812 /*
1813 * No point in marking the device as lost, if the device is
1814 * already DEAD.
1815 */
1816 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
1817 continue;
1818 if (atomic_read(&fcport->state) == FCS_ONLINE)
1819 qla2x00_schedule_rport_del(ha, fcport, defer);
1820 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1821 }
1822
1823 if (defer)
1824 qla2xxx_wake_dpc(ha);
1825 }
1826
1827 /*
1828 * qla2x00_mem_alloc
1829 * Allocates adapter memory.
1830 *
1831 * Returns:
1832 * 0 = success.
1833 * 1 = failure.
1834 */
1835 static uint8_t
1836 qla2x00_mem_alloc(scsi_qla_host_t *ha)
1837 {
1838 char name[16];
1839 uint8_t status = 1;
1840 int retry= 10;
1841
1842 do {
1843 /*
1844 * This will loop only once if everything goes well, else some
1845 * number of retries will be performed to get around a kernel
1846 * bug where available mem is not allocated until after a
1847 * little delay and a retry.
1848 */
1849 ha->request_ring = dma_alloc_coherent(&ha->pdev->dev,
1850 (ha->request_q_length + 1) * sizeof(request_t),
1851 &ha->request_dma, GFP_KERNEL);
1852 if (ha->request_ring == NULL) {
1853 qla_printk(KERN_WARNING, ha,
1854 "Memory Allocation failed - request_ring\n");
1855
1856 qla2x00_mem_free(ha);
1857 msleep(100);
1858
1859 continue;
1860 }
1861
1862 ha->response_ring = dma_alloc_coherent(&ha->pdev->dev,
1863 (ha->response_q_length + 1) * sizeof(response_t),
1864 &ha->response_dma, GFP_KERNEL);
1865 if (ha->response_ring == NULL) {
1866 qla_printk(KERN_WARNING, ha,
1867 "Memory Allocation failed - response_ring\n");
1868
1869 qla2x00_mem_free(ha);
1870 msleep(100);
1871
1872 continue;
1873 }
1874
1875 ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
1876 &ha->gid_list_dma, GFP_KERNEL);
1877 if (ha->gid_list == NULL) {
1878 qla_printk(KERN_WARNING, ha,
1879 "Memory Allocation failed - gid_list\n");
1880
1881 qla2x00_mem_free(ha);
1882 msleep(100);
1883
1884 continue;
1885 }
1886
1887 ha->rlc_rsp = dma_alloc_coherent(&ha->pdev->dev,
1888 sizeof(rpt_lun_cmd_rsp_t), &ha->rlc_rsp_dma, GFP_KERNEL);
1889 if (ha->rlc_rsp == NULL) {
1890 qla_printk(KERN_WARNING, ha,
1891 "Memory Allocation failed - rlc");
1892
1893 qla2x00_mem_free(ha);
1894 msleep(100);
1895
1896 continue;
1897 }
1898
1899 snprintf(name, sizeof(name), "qla2xxx_%ld", ha->host_no);
1900 ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
1901 DMA_POOL_SIZE, 8, 0);
1902 if (ha->s_dma_pool == NULL) {
1903 qla_printk(KERN_WARNING, ha,
1904 "Memory Allocation failed - s_dma_pool\n");
1905
1906 qla2x00_mem_free(ha);
1907 msleep(100);
1908
1909 continue;
1910 }
1911
1912 /* get consistent memory allocated for init control block */
1913 ha->init_cb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
1914 &ha->init_cb_dma);
1915 if (ha->init_cb == NULL) {
1916 qla_printk(KERN_WARNING, ha,
1917 "Memory Allocation failed - init_cb\n");
1918
1919 qla2x00_mem_free(ha);
1920 msleep(100);
1921
1922 continue;
1923 }
1924 memset(ha->init_cb, 0, ha->init_cb_size);
1925
1926 /* Get consistent memory allocated for Get Port Database cmd */
1927 ha->iodesc_pd = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
1928 &ha->iodesc_pd_dma);
1929 if (ha->iodesc_pd == NULL) {
1930 /* error */
1931 qla_printk(KERN_WARNING, ha,
1932 "Memory Allocation failed - iodesc_pd\n");
1933
1934 qla2x00_mem_free(ha);
1935 msleep(100);
1936
1937 continue;
1938 }
1939 memset(ha->iodesc_pd, 0, PORT_DATABASE_SIZE);
1940
1941 /* Allocate ioctl related memory. */
1942 if (qla2x00_alloc_ioctl_mem(ha)) {
1943 qla_printk(KERN_WARNING, ha,
1944 "Memory Allocation failed - ioctl_mem\n");
1945
1946 qla2x00_mem_free(ha);
1947 msleep(100);
1948
1949 continue;
1950 }
1951
1952 if (qla2x00_allocate_sp_pool(ha)) {
1953 qla_printk(KERN_WARNING, ha,
1954 "Memory Allocation failed - "
1955 "qla2x00_allocate_sp_pool()\n");
1956
1957 qla2x00_mem_free(ha);
1958 msleep(100);
1959
1960 continue;
1961 }
1962
1963 /* Allocate memory for SNS commands */
1964 if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
1965 /* Get consistent memory allocated for SNS commands */
1966 ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
1967 sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma,
1968 GFP_KERNEL);
1969 if (ha->sns_cmd == NULL) {
1970 /* error */
1971 qla_printk(KERN_WARNING, ha,
1972 "Memory Allocation failed - sns_cmd\n");
1973
1974 qla2x00_mem_free(ha);
1975 msleep(100);
1976
1977 continue;
1978 }
1979 memset(ha->sns_cmd, 0, sizeof(struct sns_cmd_pkt));
1980 } else {
1981 /* Get consistent memory allocated for MS IOCB */
1982 ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
1983 &ha->ms_iocb_dma);
1984 if (ha->ms_iocb == NULL) {
1985 /* error */
1986 qla_printk(KERN_WARNING, ha,
1987 "Memory Allocation failed - ms_iocb\n");
1988
1989 qla2x00_mem_free(ha);
1990 msleep(100);
1991
1992 continue;
1993 }
1994 memset(ha->ms_iocb, 0, sizeof(ms_iocb_entry_t));
1995
1996 /*
1997 * Get consistent memory allocated for CT SNS
1998 * commands
1999 */
2000 ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
2001 sizeof(struct ct_sns_pkt), &ha->ct_sns_dma,
2002 GFP_KERNEL);
2003 if (ha->ct_sns == NULL) {
2004 /* error */
2005 qla_printk(KERN_WARNING, ha,
2006 "Memory Allocation failed - ct_sns\n");
2007
2008 qla2x00_mem_free(ha);
2009 msleep(100);
2010
2011 continue;
2012 }
2013 memset(ha->ct_sns, 0, sizeof(struct ct_sns_pkt));
2014 }
2015
2016 /* Done all allocations without any error. */
2017 status = 0;
2018
2019 } while (retry-- && status != 0);
2020
2021 if (status) {
2022 printk(KERN_WARNING
2023 "%s(): **** FAILED ****\n", __func__);
2024 }
2025
2026 return(status);
2027 }
2028
2029 /*
2030 * qla2x00_mem_free
2031 * Frees all adapter allocated memory.
2032 *
2033 * Input:
2034 * ha = adapter block pointer.
2035 */
2036 static void
2037 qla2x00_mem_free(scsi_qla_host_t *ha)
2038 {
2039 struct list_head *fcpl, *fcptemp;
2040 fc_port_t *fcport;
2041
2042 if (ha == NULL) {
2043 /* error */
2044 DEBUG2(printk("%s(): ERROR invalid ha pointer.\n", __func__));
2045 return;
2046 }
2047
2048 /* free ioctl memory */
2049 qla2x00_free_ioctl_mem(ha);
2050
2051 /* free sp pool */
2052 qla2x00_free_sp_pool(ha);
2053
2054 if (ha->sns_cmd)
2055 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
2056 ha->sns_cmd, ha->sns_cmd_dma);
2057
2058 if (ha->ct_sns)
2059 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2060 ha->ct_sns, ha->ct_sns_dma);
2061
2062 if (ha->ms_iocb)
2063 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2064
2065 if (ha->iodesc_pd)
2066 dma_pool_free(ha->s_dma_pool, ha->iodesc_pd, ha->iodesc_pd_dma);
2067
2068 if (ha->init_cb)
2069 dma_pool_free(ha->s_dma_pool, ha->init_cb, ha->init_cb_dma);
2070
2071 if (ha->s_dma_pool)
2072 dma_pool_destroy(ha->s_dma_pool);
2073
2074 if (ha->rlc_rsp)
2075 dma_free_coherent(&ha->pdev->dev,
2076 sizeof(rpt_lun_cmd_rsp_t), ha->rlc_rsp,
2077 ha->rlc_rsp_dma);
2078
2079 if (ha->gid_list)
2080 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2081 ha->gid_list_dma);
2082
2083 if (ha->response_ring)
2084 dma_free_coherent(&ha->pdev->dev,
2085 (ha->response_q_length + 1) * sizeof(response_t),
2086 ha->response_ring, ha->response_dma);
2087
2088 if (ha->request_ring)
2089 dma_free_coherent(&ha->pdev->dev,
2090 (ha->request_q_length + 1) * sizeof(request_t),
2091 ha->request_ring, ha->request_dma);
2092
2093 ha->sns_cmd = NULL;
2094 ha->sns_cmd_dma = 0;
2095 ha->ct_sns = NULL;
2096 ha->ct_sns_dma = 0;
2097 ha->ms_iocb = NULL;
2098 ha->ms_iocb_dma = 0;
2099 ha->iodesc_pd = NULL;
2100 ha->iodesc_pd_dma = 0;
2101 ha->init_cb = NULL;
2102 ha->init_cb_dma = 0;
2103
2104 ha->s_dma_pool = NULL;
2105
2106 ha->rlc_rsp = NULL;
2107 ha->rlc_rsp_dma = 0;
2108 ha->gid_list = NULL;
2109 ha->gid_list_dma = 0;
2110
2111 ha->response_ring = NULL;
2112 ha->response_dma = 0;
2113 ha->request_ring = NULL;
2114 ha->request_dma = 0;
2115
2116 list_for_each_safe(fcpl, fcptemp, &ha->fcports) {
2117 fcport = list_entry(fcpl, fc_port_t, list);
2118
2119 /* fc ports */
2120 list_del_init(&fcport->list);
2121 kfree(fcport);
2122 }
2123 INIT_LIST_HEAD(&ha->fcports);
2124
2125 if (ha->fw_dump)
2126 free_pages((unsigned long)ha->fw_dump, ha->fw_dump_order);
2127
2128 vfree(ha->fw_dump24);
2129
2130 vfree(ha->fw_dump_buffer);
2131
2132 ha->fw_dump = NULL;
2133 ha->fw_dump24 = NULL;
2134 ha->fw_dumped = 0;
2135 ha->fw_dump_reading = 0;
2136 ha->fw_dump_buffer = NULL;
2137
2138 vfree(ha->optrom_buffer);
2139 }
2140
2141 /*
2142 * qla2x00_allocate_sp_pool
2143 * This routine is called during initialization to allocate
2144 * memory for local srb_t.
2145 *
2146 * Input:
2147 * ha = adapter block pointer.
2148 *
2149 * Context:
2150 * Kernel context.
2151 *
2152 * Note: Sets the ref_count for non Null sp to one.
2153 */
2154 static int
2155 qla2x00_allocate_sp_pool(scsi_qla_host_t *ha)
2156 {
2157 int rval;
2158
2159 rval = QLA_SUCCESS;
2160 ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
2161 if (ha->srb_mempool == NULL) {
2162 qla_printk(KERN_INFO, ha, "Unable to allocate SRB mempool.\n");
2163 rval = QLA_FUNCTION_FAILED;
2164 }
2165 return (rval);
2166 }
2167
2168 /*
2169 * This routine frees all adapter allocated memory.
2170 *
2171 */
2172 static void
2173 qla2x00_free_sp_pool( scsi_qla_host_t *ha)
2174 {
2175 if (ha->srb_mempool) {
2176 mempool_destroy(ha->srb_mempool);
2177 ha->srb_mempool = NULL;
2178 }
2179 }
2180
2181 /**************************************************************************
2182 * qla2x00_do_dpc
2183 * This kernel thread is a task that is schedule by the interrupt handler
2184 * to perform the background processing for interrupts.
2185 *
2186 * Notes:
2187 * This task always run in the context of a kernel thread. It
2188 * is kick-off by the driver's detect code and starts up
2189 * up one per adapter. It immediately goes to sleep and waits for
2190 * some fibre event. When either the interrupt handler or
2191 * the timer routine detects a event it will one of the task
2192 * bits then wake us up.
2193 **************************************************************************/
2194 static int
2195 qla2x00_do_dpc(void *data)
2196 {
2197 scsi_qla_host_t *ha;
2198 fc_port_t *fcport;
2199 uint8_t status;
2200 uint16_t next_loopid;
2201
2202 ha = (scsi_qla_host_t *)data;
2203
2204 set_user_nice(current, -20);
2205
2206 while (!kthread_should_stop()) {
2207 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
2208
2209 set_current_state(TASK_INTERRUPTIBLE);
2210 schedule();
2211 __set_current_state(TASK_RUNNING);
2212
2213 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
2214
2215 /* Initialization not yet finished. Don't do anything yet. */
2216 if (!ha->flags.init_done)
2217 continue;
2218
2219 DEBUG3(printk("scsi(%ld): DPC handler\n", ha->host_no));
2220
2221 ha->dpc_active = 1;
2222
2223 if (ha->flags.mbox_busy) {
2224 ha->dpc_active = 0;
2225 continue;
2226 }
2227
2228 if (test_and_clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) {
2229
2230 DEBUG(printk("scsi(%ld): dpc: sched "
2231 "qla2x00_abort_isp ha = %p\n",
2232 ha->host_no, ha));
2233 if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
2234 &ha->dpc_flags))) {
2235
2236 if (qla2x00_abort_isp(ha)) {
2237 /* failed. retry later */
2238 set_bit(ISP_ABORT_NEEDED,
2239 &ha->dpc_flags);
2240 }
2241 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2242 }
2243 DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
2244 ha->host_no));
2245 }
2246
2247 if (test_and_clear_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags))
2248 qla2x00_update_fcports(ha);
2249
2250 if (test_and_clear_bit(LOOP_RESET_NEEDED, &ha->dpc_flags)) {
2251 DEBUG(printk("scsi(%ld): dpc: sched loop_reset()\n",
2252 ha->host_no));
2253 qla2x00_loop_reset(ha);
2254 }
2255
2256 if (test_and_clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) &&
2257 (!(test_and_set_bit(RESET_ACTIVE, &ha->dpc_flags)))) {
2258
2259 DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
2260 ha->host_no));
2261
2262 qla2x00_rst_aen(ha);
2263 clear_bit(RESET_ACTIVE, &ha->dpc_flags);
2264 }
2265
2266 /* Retry each device up to login retry count */
2267 if ((test_and_clear_bit(RELOGIN_NEEDED, &ha->dpc_flags)) &&
2268 !test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) &&
2269 atomic_read(&ha->loop_state) != LOOP_DOWN) {
2270
2271 DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
2272 ha->host_no));
2273
2274 next_loopid = 0;
2275 list_for_each_entry(fcport, &ha->fcports, list) {
2276 if (fcport->port_type != FCT_TARGET)
2277 continue;
2278
2279 /*
2280 * If the port is not ONLINE then try to login
2281 * to it if we haven't run out of retries.
2282 */
2283 if (atomic_read(&fcport->state) != FCS_ONLINE &&
2284 fcport->login_retry) {
2285
2286 fcport->login_retry--;
2287 if (fcport->flags & FCF_FABRIC_DEVICE) {
2288 if (fcport->flags &
2289 FCF_TAPE_PRESENT)
2290 ha->isp_ops.fabric_logout(
2291 ha, fcport->loop_id,
2292 fcport->d_id.b.domain,
2293 fcport->d_id.b.area,
2294 fcport->d_id.b.al_pa);
2295 status = qla2x00_fabric_login(
2296 ha, fcport, &next_loopid);
2297 } else
2298 status =
2299 qla2x00_local_device_login(
2300 ha, fcport);
2301
2302 if (status == QLA_SUCCESS) {
2303 fcport->old_loop_id = fcport->loop_id;
2304
2305 DEBUG(printk("scsi(%ld): port login OK: logged in ID 0x%x\n",
2306 ha->host_no, fcport->loop_id));
2307
2308 qla2x00_update_fcport(ha,
2309 fcport);
2310 } else if (status == 1) {
2311 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
2312 /* retry the login again */
2313 DEBUG(printk("scsi(%ld): Retrying %d login again loop_id 0x%x\n",
2314 ha->host_no,
2315 fcport->login_retry, fcport->loop_id));
2316 } else {
2317 fcport->login_retry = 0;
2318 }
2319 }
2320 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2321 break;
2322 }
2323 DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
2324 ha->host_no));
2325 }
2326
2327 if ((test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags)) &&
2328 atomic_read(&ha->loop_state) != LOOP_DOWN) {
2329
2330 clear_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags);
2331 DEBUG(printk("scsi(%ld): qla2x00_login_retry()\n",
2332 ha->host_no));
2333
2334 set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
2335
2336 DEBUG(printk("scsi(%ld): qla2x00_login_retry - end\n",
2337 ha->host_no));
2338 }
2339
2340 if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
2341
2342 DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
2343 ha->host_no));
2344
2345 if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
2346 &ha->dpc_flags))) {
2347
2348 qla2x00_loop_resync(ha);
2349
2350 clear_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags);
2351 }
2352
2353 DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
2354 ha->host_no));
2355 }
2356
2357 if (test_and_clear_bit(FCPORT_RESCAN_NEEDED, &ha->dpc_flags)) {
2358
2359 DEBUG(printk("scsi(%ld): Rescan flagged fcports...\n",
2360 ha->host_no));
2361
2362 qla2x00_rescan_fcports(ha);
2363
2364 DEBUG(printk("scsi(%ld): Rescan flagged fcports..."
2365 "end.\n",
2366 ha->host_no));
2367 }
2368
2369 if (!ha->interrupts_on)
2370 ha->isp_ops.enable_intrs(ha);
2371
2372 if (test_and_clear_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags))
2373 ha->isp_ops.beacon_blink(ha);
2374
2375 ha->dpc_active = 0;
2376 } /* End of while(1) */
2377
2378 DEBUG(printk("scsi(%ld): DPC handler exiting\n", ha->host_no));
2379
2380 /*
2381 * Make sure that nobody tries to wake us up again.
2382 */
2383 ha->dpc_active = 0;
2384
2385 return 0;
2386 }
2387
2388 void
2389 qla2xxx_wake_dpc(scsi_qla_host_t *ha)
2390 {
2391 if (ha->dpc_thread)
2392 wake_up_process(ha->dpc_thread);
2393 }
2394
2395 /*
2396 * qla2x00_rst_aen
2397 * Processes asynchronous reset.
2398 *
2399 * Input:
2400 * ha = adapter block pointer.
2401 */
2402 static void
2403 qla2x00_rst_aen(scsi_qla_host_t *ha)
2404 {
2405 if (ha->flags.online && !ha->flags.reset_active &&
2406 !atomic_read(&ha->loop_down_timer) &&
2407 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) {
2408 do {
2409 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
2410
2411 /*
2412 * Issue marker command only when we are going to start
2413 * the I/O.
2414 */
2415 ha->marker_needed = 1;
2416 } while (!atomic_read(&ha->loop_down_timer) &&
2417 (test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags)));
2418 }
2419 }
2420
2421 static void
2422 qla2x00_sp_free_dma(scsi_qla_host_t *ha, srb_t *sp)
2423 {
2424 struct scsi_cmnd *cmd = sp->cmd;
2425
2426 if (sp->flags & SRB_DMA_VALID) {
2427 if (cmd->use_sg) {
2428 dma_unmap_sg(&ha->pdev->dev, cmd->request_buffer,
2429 cmd->use_sg, cmd->sc_data_direction);
2430 } else if (cmd->request_bufflen) {
2431 dma_unmap_single(&ha->pdev->dev, sp->dma_handle,
2432 cmd->request_bufflen, cmd->sc_data_direction);
2433 }
2434 sp->flags &= ~SRB_DMA_VALID;
2435 }
2436 CMD_SP(cmd) = NULL;
2437 }
2438
2439 void
2440 qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *sp)
2441 {
2442 struct scsi_cmnd *cmd = sp->cmd;
2443
2444 qla2x00_sp_free_dma(ha, sp);
2445
2446 mempool_free(sp, ha->srb_mempool);
2447
2448 cmd->scsi_done(cmd);
2449 }
2450
2451 /**************************************************************************
2452 * qla2x00_timer
2453 *
2454 * Description:
2455 * One second timer
2456 *
2457 * Context: Interrupt
2458 ***************************************************************************/
2459 static void
2460 qla2x00_timer(scsi_qla_host_t *ha)
2461 {
2462 unsigned long cpu_flags = 0;
2463 fc_port_t *fcport;
2464 int start_dpc = 0;
2465 int index;
2466 srb_t *sp;
2467 int t;
2468
2469 /*
2470 * Ports - Port down timer.
2471 *
2472 * Whenever, a port is in the LOST state we start decrementing its port
2473 * down timer every second until it reaches zero. Once it reaches zero
2474 * the port it marked DEAD.
2475 */
2476 t = 0;
2477 list_for_each_entry(fcport, &ha->fcports, list) {
2478 if (fcport->port_type != FCT_TARGET)
2479 continue;
2480
2481 if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
2482
2483 if (atomic_read(&fcport->port_down_timer) == 0)
2484 continue;
2485
2486 if (atomic_dec_and_test(&fcport->port_down_timer) != 0)
2487 atomic_set(&fcport->state, FCS_DEVICE_DEAD);
2488
2489 DEBUG(printk("scsi(%ld): fcport-%d - port retry count: "
2490 "%d remaining\n",
2491 ha->host_no,
2492 t, atomic_read(&fcport->port_down_timer)));
2493 }
2494 t++;
2495 } /* End of for fcport */
2496
2497
2498 /* Loop down handler. */
2499 if (atomic_read(&ha->loop_down_timer) > 0 &&
2500 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags)) && ha->flags.online) {
2501
2502 if (atomic_read(&ha->loop_down_timer) ==
2503 ha->loop_down_abort_time) {
2504
2505 DEBUG(printk("scsi(%ld): Loop Down - aborting the "
2506 "queues before time expire\n",
2507 ha->host_no));
2508
2509 if (!IS_QLA2100(ha) && ha->link_down_timeout)
2510 atomic_set(&ha->loop_state, LOOP_DEAD);
2511
2512 /* Schedule an ISP abort to return any tape commands. */
2513 spin_lock_irqsave(&ha->hardware_lock, cpu_flags);
2514 for (index = 1; index < MAX_OUTSTANDING_COMMANDS;
2515 index++) {
2516 fc_port_t *sfcp;
2517
2518 sp = ha->outstanding_cmds[index];
2519 if (!sp)
2520 continue;
2521 sfcp = sp->fcport;
2522 if (!(sfcp->flags & FCF_TAPE_PRESENT))
2523 continue;
2524
2525 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2526 break;
2527 }
2528 spin_unlock_irqrestore(&ha->hardware_lock, cpu_flags);
2529
2530 set_bit(ABORT_QUEUES_NEEDED, &ha->dpc_flags);
2531 start_dpc++;
2532 }
2533
2534 /* if the loop has been down for 4 minutes, reinit adapter */
2535 if (atomic_dec_and_test(&ha->loop_down_timer) != 0) {
2536 DEBUG(printk("scsi(%ld): Loop down exceed 4 mins - "
2537 "restarting queues.\n",
2538 ha->host_no));
2539
2540 set_bit(RESTART_QUEUES_NEEDED, &ha->dpc_flags);
2541 start_dpc++;
2542
2543 if (!(ha->device_flags & DFLG_NO_CABLE)) {
2544 DEBUG(printk("scsi(%ld): Loop down - "
2545 "aborting ISP.\n",
2546 ha->host_no));
2547 qla_printk(KERN_WARNING, ha,
2548 "Loop down - aborting ISP.\n");
2549
2550 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2551 }
2552 }
2553 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
2554 ha->host_no,
2555 atomic_read(&ha->loop_down_timer)));
2556 }
2557
2558 /* Check if beacon LED needs to be blinked */
2559 if (ha->beacon_blink_led == 1) {
2560 set_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags);
2561 start_dpc++;
2562 }
2563
2564 /* Schedule the DPC routine if needed */
2565 if ((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags) ||
2566 test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) ||
2567 test_bit(LOOP_RESET_NEEDED, &ha->dpc_flags) ||
2568 test_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags) ||
2569 start_dpc ||
2570 test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags) ||
2571 test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) ||
2572 test_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags) ||
2573 test_bit(RELOGIN_NEEDED, &ha->dpc_flags)))
2574 qla2xxx_wake_dpc(ha);
2575
2576 qla2x00_restart_timer(ha, WATCH_INTERVAL);
2577 }
2578
2579 /* XXX(hch): crude hack to emulate a down_timeout() */
2580 int
2581 qla2x00_down_timeout(struct semaphore *sema, unsigned long timeout)
2582 {
2583 const unsigned int step = 100; /* msecs */
2584 unsigned int iterations = jiffies_to_msecs(timeout)/100;
2585
2586 do {
2587 if (!down_trylock(sema))
2588 return 0;
2589 if (msleep_interruptible(step))
2590 break;
2591 } while (--iterations >= 0);
2592
2593 return -ETIMEDOUT;
2594 }
2595
2596 #if defined(CONFIG_SCSI_QLA2XXX_EMBEDDED_FIRMWARE)
2597
2598 #define qla2x00_release_firmware() do { } while (0)
2599 #define qla2x00_pci_module_init() (0)
2600 #define qla2x00_pci_module_exit() do { } while (0)
2601
2602 #else /* !defined(CONFIG_SCSI_QLA2XXX_EMBEDDED_FIRMWARE) */
2603
2604 /* Firmware interface routines. */
2605
2606 #define FW_BLOBS 5
2607 #define FW_ISP21XX 0
2608 #define FW_ISP22XX 1
2609 #define FW_ISP2300 2
2610 #define FW_ISP2322 3
2611 #define FW_ISP24XX 4
2612
2613 static DECLARE_MUTEX(qla_fw_lock);
2614
2615 static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
2616 { .name = "ql2100_fw.bin", .segs = { 0x1000, 0 }, },
2617 { .name = "ql2200_fw.bin", .segs = { 0x1000, 0 }, },
2618 { .name = "ql2300_fw.bin", .segs = { 0x800, 0 }, },
2619 { .name = "ql2322_fw.bin", .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
2620 { .name = "ql2400_fw.bin", },
2621 };
2622
2623 struct fw_blob *
2624 qla2x00_request_firmware(scsi_qla_host_t *ha)
2625 {
2626 struct fw_blob *blob;
2627
2628 blob = NULL;
2629 if (IS_QLA2100(ha)) {
2630 blob = &qla_fw_blobs[FW_ISP21XX];
2631 } else if (IS_QLA2200(ha)) {
2632 blob = &qla_fw_blobs[FW_ISP22XX];
2633 } else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
2634 blob = &qla_fw_blobs[FW_ISP2300];
2635 } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
2636 blob = &qla_fw_blobs[FW_ISP2322];
2637 } else if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
2638 blob = &qla_fw_blobs[FW_ISP24XX];
2639 }
2640
2641 down(&qla_fw_lock);
2642 if (blob->fw)
2643 goto out;
2644
2645 if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
2646 DEBUG2(printk("scsi(%ld): Failed to load firmware image "
2647 "(%s).\n", ha->host_no, blob->name));
2648 blob->fw = NULL;
2649 blob = NULL;
2650 goto out;
2651 }
2652
2653 out:
2654 up(&qla_fw_lock);
2655 return blob;
2656 }
2657
2658 static void
2659 qla2x00_release_firmware(void)
2660 {
2661 int idx;
2662
2663 down(&qla_fw_lock);
2664 for (idx = 0; idx < FW_BLOBS; idx++)
2665 if (qla_fw_blobs[idx].fw)
2666 release_firmware(qla_fw_blobs[idx].fw);
2667 up(&qla_fw_lock);
2668 }
2669
2670 static struct qla_board_info qla_board_tbl = {
2671 .drv_name = "qla2xxx",
2672 };
2673
2674 static struct pci_device_id qla2xxx_pci_tbl[] = {
2675 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100,
2676 PCI_ANY_ID, PCI_ANY_ID, },
2677 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200,
2678 PCI_ANY_ID, PCI_ANY_ID, },
2679 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300,
2680 PCI_ANY_ID, PCI_ANY_ID, },
2681 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312,
2682 PCI_ANY_ID, PCI_ANY_ID, },
2683 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322,
2684 PCI_ANY_ID, PCI_ANY_ID, },
2685 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312,
2686 PCI_ANY_ID, PCI_ANY_ID, },
2687 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322,
2688 PCI_ANY_ID, PCI_ANY_ID, },
2689 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422,
2690 PCI_ANY_ID, PCI_ANY_ID, },
2691 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432,
2692 PCI_ANY_ID, PCI_ANY_ID, },
2693 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422,
2694 PCI_ANY_ID, PCI_ANY_ID, },
2695 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432,
2696 PCI_ANY_ID, PCI_ANY_ID, },
2697 { 0 },
2698 };
2699 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
2700
2701 static int __devinit
2702 qla2xxx_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
2703 {
2704 return qla2x00_probe_one(pdev, &qla_board_tbl);
2705 }
2706
2707 static void __devexit
2708 qla2xxx_remove_one(struct pci_dev *pdev)
2709 {
2710 qla2x00_remove_one(pdev);
2711 }
2712
2713 static struct pci_driver qla2xxx_pci_driver = {
2714 .name = "qla2xxx",
2715 .driver = {
2716 .owner = THIS_MODULE,
2717 },
2718 .id_table = qla2xxx_pci_tbl,
2719 .probe = qla2xxx_probe_one,
2720 .remove = __devexit_p(qla2xxx_remove_one),
2721 };
2722
2723 static inline int
2724 qla2x00_pci_module_init(void)
2725 {
2726 return pci_module_init(&qla2xxx_pci_driver);
2727 }
2728
2729 static inline void
2730 qla2x00_pci_module_exit(void)
2731 {
2732 pci_unregister_driver(&qla2xxx_pci_driver);
2733 }
2734
2735 #endif
2736
2737 /**
2738 * qla2x00_module_init - Module initialization.
2739 **/
2740 static int __init
2741 qla2x00_module_init(void)
2742 {
2743 int ret = 0;
2744
2745 /* Allocate cache for SRBs. */
2746 srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
2747 SLAB_HWCACHE_ALIGN, NULL, NULL);
2748 if (srb_cachep == NULL) {
2749 printk(KERN_ERR
2750 "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
2751 return -ENOMEM;
2752 }
2753
2754 /* Derive version string. */
2755 strcpy(qla2x00_version_str, QLA2XXX_VERSION);
2756 #if defined(CONFIG_SCSI_QLA2XXX_EMBEDDED_FIRMWARE)
2757 strcat(qla2x00_version_str, "-fw");
2758 #endif
2759 #if DEBUG_QLA2100
2760 strcat(qla2x00_version_str, "-debug");
2761 #endif
2762 qla2xxx_transport_template =
2763 fc_attach_transport(&qla2xxx_transport_functions);
2764 if (!qla2xxx_transport_template)
2765 return -ENODEV;
2766
2767 printk(KERN_INFO "QLogic Fibre Channel HBA Driver\n");
2768 ret = qla2x00_pci_module_init();
2769 if (ret) {
2770 kmem_cache_destroy(srb_cachep);
2771 fc_release_transport(qla2xxx_transport_template);
2772 }
2773 return ret;
2774 }
2775
2776 /**
2777 * qla2x00_module_exit - Module cleanup.
2778 **/
2779 static void __exit
2780 qla2x00_module_exit(void)
2781 {
2782 qla2x00_pci_module_exit();
2783 qla2x00_release_firmware();
2784 kmem_cache_destroy(srb_cachep);
2785 fc_release_transport(qla2xxx_transport_template);
2786 }
2787
2788 module_init(qla2x00_module_init);
2789 module_exit(qla2x00_module_exit);
2790
2791 MODULE_AUTHOR("QLogic Corporation");
2792 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
2793 MODULE_LICENSE("GPL");
2794 MODULE_VERSION(QLA2XXX_VERSION);
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree