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[SCSI] SCSI core: Allow QUIESCE -> CANCEL sdev transition
[linux-2.6-block.git] / drivers / scsi / qla2xxx / qla_os.c
CommitLineData
1da177e4 1/*
fa90c54f
AV		 2 * QLogic Fibre Channel HBA Driver
3 * Copyright (c) 2003-2005 QLogic Corporation
1da177e4 4 *
fa90c54f 5 * See LICENSE.qla2xxx for copyright and licensing details.
1da177e4
LT		 6 */
7#include "qla_def.h"
8
9#include <linux/moduleparam.h>
10#include <linux/vmalloc.h>
1da177e4 11#include <linux/delay.h>
39a11240 12#include <linux/kthread.h>
1da177e4
LT		 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 */
22char qla2x00_version_str[40];
23
24/*
25 * SRB allocation cache
26 */
354d6b21 27static kmem_cache_t *srb_cachep;
1da177e4
LT		 28
29/*
30 * Ioctl related information.
31 */
354d6b21 32static int num_hosts;
1da177e4
LT		 33
34int ql2xlogintimeout = 20;
35module_param(ql2xlogintimeout, int, S_IRUGO|S_IRUSR);
36MODULE_PARM_DESC(ql2xlogintimeout,
37 "Login timeout value in seconds.");
38
8482e118 39int qlport_down_retry = 30;
1da177e4
LT		 40module_param(qlport_down_retry, int, S_IRUGO|S_IRUSR);
41MODULE_PARM_DESC(qlport_down_retry,
42 "Maximum number of command retries to a port that returns"
43 "a PORT-DOWN status.");
44
1da177e4
LT		 45int ql2xplogiabsentdevice;
46module_param(ql2xplogiabsentdevice, int, S_IRUGO|S_IWUSR);
47MODULE_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
1da177e4
LT		 52int ql2xloginretrycount = 0;
53module_param(ql2xloginretrycount, int, S_IRUGO|S_IRUSR);
54MODULE_PARM_DESC(ql2xloginretrycount,
55 "Specify an alternate value for the NVRAM login retry count.");
56
1da177e4
LT		 57static void qla2x00_free_device(scsi_qla_host_t *);
58
59static void qla2x00_config_dma_addressing(scsi_qla_host_t *ha);
60
cca5335c
AV		 61int ql2xfdmienable;
62module_param(ql2xfdmienable, int, S_IRUGO|S_IRUSR);
63MODULE_PARM_DESC(ql2xfdmienable,
64 "Enables FDMI registratons "
65 "Default is 0 - no FDMI. 1 - perfom FDMI.");
66
1da177e4 67/*
fa2a1ce5 68 * SCSI host template entry points
1da177e4
LT		 69 */
70static int qla2xxx_slave_configure(struct scsi_device * device);
f4f051eb 71static int qla2xxx_slave_alloc(struct scsi_device *);
72static void qla2xxx_slave_destroy(struct scsi_device *);
1da177e4
LT		 73static int qla2x00_queuecommand(struct scsi_cmnd *cmd,
74 void (*fn)(struct scsi_cmnd *));
fca29703
AV		 75static int qla24xx_queuecommand(struct scsi_cmnd *cmd,
76 void (*fn)(struct scsi_cmnd *));
1da177e4
LT		 77static int qla2xxx_eh_abort(struct scsi_cmnd *);
78static int qla2xxx_eh_device_reset(struct scsi_cmnd *);
79static int qla2xxx_eh_bus_reset(struct scsi_cmnd *);
80static int qla2xxx_eh_host_reset(struct scsi_cmnd *);
81static int qla2x00_loop_reset(scsi_qla_host_t *ha);
82static int qla2x00_device_reset(scsi_qla_host_t *, fc_port_t *);
83
ce7e4af7
AV		 84static int qla2x00_change_queue_depth(struct scsi_device *, int);
85static int qla2x00_change_queue_type(struct scsi_device *, int);
86
1da177e4
LT		 87static struct scsi_host_template qla2x00_driver_template = {
88 .module = THIS_MODULE,
cb63067a 89 .name = QLA2XXX_DRIVER_NAME,
1da177e4
LT		 90 .queuecommand = qla2x00_queuecommand,
91
92 .eh_abort_handler = qla2xxx_eh_abort,
93 .eh_device_reset_handler = qla2xxx_eh_device_reset,
94 .eh_bus_reset_handler = qla2xxx_eh_bus_reset,
95 .eh_host_reset_handler = qla2xxx_eh_host_reset,
96
97 .slave_configure = qla2xxx_slave_configure,
98
f4f051eb 99 .slave_alloc = qla2xxx_slave_alloc,
100 .slave_destroy = qla2xxx_slave_destroy,
ce7e4af7
AV		 101 .change_queue_depth = qla2x00_change_queue_depth,
102 .change_queue_type = qla2x00_change_queue_type,
1da177e4
LT		 103 .this_id = -1,
104 .cmd_per_lun = 3,
105 .use_clustering = ENABLE_CLUSTERING,
106 .sg_tablesize = SG_ALL,
107
108 /*
109 * The RISC allows for each command to transfer (2^32-1) bytes of data,
110 * which equates to 0x800000 sectors.
111 */
112 .max_sectors = 0xFFFF,
afb046e2 113 .shost_attrs = qla2x00_host_attrs,
1da177e4
LT		 114};
115
fca29703
AV		 116static struct scsi_host_template qla24xx_driver_template = {
117 .module = THIS_MODULE,
cb63067a 118 .name = QLA2XXX_DRIVER_NAME,
fca29703
AV		 119 .queuecommand = qla24xx_queuecommand,
120
121 .eh_abort_handler = qla2xxx_eh_abort,
122 .eh_device_reset_handler = qla2xxx_eh_device_reset,
123 .eh_bus_reset_handler = qla2xxx_eh_bus_reset,
124 .eh_host_reset_handler = qla2xxx_eh_host_reset,
125
126 .slave_configure = qla2xxx_slave_configure,
127
128 .slave_alloc = qla2xxx_slave_alloc,
129 .slave_destroy = qla2xxx_slave_destroy,
ce7e4af7
AV		 130 .change_queue_depth = qla2x00_change_queue_depth,
131 .change_queue_type = qla2x00_change_queue_type,
fca29703
AV		 132 .this_id = -1,
133 .cmd_per_lun = 3,
134 .use_clustering = ENABLE_CLUSTERING,
135 .sg_tablesize = SG_ALL,
136
137 .max_sectors = 0xFFFF,
afb046e2 138 .shost_attrs = qla2x00_host_attrs,
fca29703
AV		 139};
140
1da177e4
LT		 141static struct scsi_transport_template *qla2xxx_transport_template = NULL;
142
1da177e4
LT		 143/* TODO Convert to inlines
144 *
145 * Timer routines
146 */
147#define WATCH_INTERVAL 1 /* number of seconds */
148
149static void qla2x00_timer(scsi_qla_host_t *);
150
151static __inline__ void qla2x00_start_timer(scsi_qla_host_t *,
152 void *, unsigned long);
153static __inline__ void qla2x00_restart_timer(scsi_qla_host_t *, unsigned long);
154static __inline__ void qla2x00_stop_timer(scsi_qla_host_t *);
155
156static inline void
157qla2x00_start_timer(scsi_qla_host_t *ha, void *func, unsigned long interval)
158{
159 init_timer(&ha->timer);
160 ha->timer.expires = jiffies + interval * HZ;
161 ha->timer.data = (unsigned long)ha;
162 ha->timer.function = (void (*)(unsigned long))func;
163 add_timer(&ha->timer);
164 ha->timer_active = 1;
165}
166
167static inline void
168qla2x00_restart_timer(scsi_qla_host_t *ha, unsigned long interval)
169{
170 mod_timer(&ha->timer, jiffies + interval * HZ);
171}
172
173static __inline__ void
174qla2x00_stop_timer(scsi_qla_host_t *ha)
175{
176 del_timer_sync(&ha->timer);
177 ha->timer_active = 0;
178}
179
1da177e4
LT		 180static int qla2x00_do_dpc(void *data);
181
182static void qla2x00_rst_aen(scsi_qla_host_t *);
183
184static uint8_t qla2x00_mem_alloc(scsi_qla_host_t *);
185static void qla2x00_mem_free(scsi_qla_host_t *ha);
186static int qla2x00_allocate_sp_pool( scsi_qla_host_t *ha);
187static void qla2x00_free_sp_pool(scsi_qla_host_t *ha);
f4f051eb 188static void qla2x00_sp_free_dma(scsi_qla_host_t *, srb_t *);
189void qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *);
1da177e4 190
1da177e4
LT		 191/* -------------------------------------------------------------------------- */
192
1da177e4 193static char *
abbd8870 194qla2x00_pci_info_str(struct scsi_qla_host *ha, char *str)
1da177e4
LT		 195{
196 static char *pci_bus_modes[] = {
197 "33", "66", "100", "133",
198 };
199 uint16_t pci_bus;
200
201 strcpy(str, "PCI");
202 pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
203 if (pci_bus) {
204 strcat(str, "-X (");
205 strcat(str, pci_bus_modes[pci_bus]);
206 } else {
207 pci_bus = (ha->pci_attr & BIT_8) >> 8;
208 strcat(str, " (");
209 strcat(str, pci_bus_modes[pci_bus]);
210 }
211 strcat(str, " MHz)");
212
213 return (str);
214}
215
fca29703
AV		 216static char *
217qla24xx_pci_info_str(struct scsi_qla_host *ha, char *str)
218{
219 static char *pci_bus_modes[] = { "33", "66", "100", "133", };
220 uint32_t pci_bus;
221 int pcie_reg;
222
223 pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
224 if (pcie_reg) {
225 char lwstr[6];
226 uint16_t pcie_lstat, lspeed, lwidth;
227
228 pcie_reg += 0x12;
229 pci_read_config_word(ha->pdev, pcie_reg, &pcie_lstat);
230 lspeed = pcie_lstat & (BIT_0 | BIT_1 | BIT_2 | BIT_3);
231 lwidth = (pcie_lstat &
232 (BIT_4 | BIT_5 | BIT_6 | BIT_7 | BIT_8 | BIT_9)) >> 4;
233
234 strcpy(str, "PCIe (");
235 if (lspeed == 1)
236 strcat(str, "2.5Gb/s ");
237 else
238 strcat(str, "<unknown> ");
239 snprintf(lwstr, sizeof(lwstr), "x%d)", lwidth);
240 strcat(str, lwstr);
241
242 return str;
243 }
244
245 strcpy(str, "PCI");
246 pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
247 if (pci_bus == 0 || pci_bus == 8) {
248 strcat(str, " (");
249 strcat(str, pci_bus_modes[pci_bus >> 3]);
250 } else {
251 strcat(str, "-X ");
252 if (pci_bus & BIT_2)
253 strcat(str, "Mode 2");
254 else
255 strcat(str, "Mode 1");
256 strcat(str, " (");
257 strcat(str, pci_bus_modes[pci_bus & ~BIT_2]);
258 }
259 strcat(str, " MHz)");
260
261 return str;
262}
263
1da177e4 264char *
abbd8870 265qla2x00_fw_version_str(struct scsi_qla_host *ha, char *str)
1da177e4
LT		 266{
267 char un_str[10];
fa2a1ce5 268
1da177e4
LT		 269 sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
270 ha->fw_minor_version,
271 ha->fw_subminor_version);
272
273 if (ha->fw_attributes & BIT_9) {
274 strcat(str, "FLX");
275 return (str);
276 }
277
278 switch (ha->fw_attributes & 0xFF) {
279 case 0x7:
280 strcat(str, "EF");
281 break;
282 case 0x17:
283 strcat(str, "TP");
284 break;
285 case 0x37:
286 strcat(str, "IP");
287 break;
288 case 0x77:
289 strcat(str, "VI");
290 break;
291 default:
292 sprintf(un_str, "(%x)", ha->fw_attributes);
293 strcat(str, un_str);
294 break;
295 }
296 if (ha->fw_attributes & 0x100)
297 strcat(str, "X");
298
299 return (str);
300}
301
fca29703
AV		 302char *
303qla24xx_fw_version_str(struct scsi_qla_host *ha, char *str)
304{
f0883ac6
AV		 305 sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
306 ha->fw_minor_version,
307 ha->fw_subminor_version);
308
fca29703
AV		 309 if (ha->fw_attributes & BIT_0)
310 strcat(str, "[Class 2] ");
311 if (ha->fw_attributes & BIT_1)
312 strcat(str, "[IP] ");
313 if (ha->fw_attributes & BIT_2)
314 strcat(str, "[Multi-ID] ");
315 if (ha->fw_attributes & BIT_13)
316 strcat(str, "[Experimental]");
317 return str;
fca29703
AV		 318}
319
320static inline srb_t *
321qla2x00_get_new_sp(scsi_qla_host_t *ha, fc_port_t *fcport,
322 struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
323{
324 srb_t *sp;
325
326 sp = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
327 if (!sp)
328 return sp;
329
fca29703
AV		 330 sp->ha = ha;
331 sp->fcport = fcport;
332 sp->cmd = cmd;
333 sp->flags = 0;
334 CMD_SP(cmd) = (void *)sp;
335 cmd->scsi_done = done;
336
337 return sp;
338}
339
1da177e4 340static int
f4f051eb 341qla2x00_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
1da177e4 342{
f4f051eb 343 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
bdf79621 344 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
19a7b4ae 345 struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
f4f051eb 346 srb_t *sp;
347 int rval;
1da177e4 348
19a7b4ae
JSEC		 349 rval = fc_remote_port_chkready(rport);
350 if (rval) {
351 cmd->result = rval;
f4f051eb 352 goto qc_fail_command;
353 }
1da177e4 354
387f96b4 355 /* Close window on fcport/rport state-transitioning. */
356 if (!*(fc_port_t **)rport->dd_data) {
357 cmd->result = DID_IMM_RETRY << 16;
358 goto qc_fail_command;
359 }
360
f4f051eb 361 if (atomic_read(&fcport->state) != FCS_ONLINE) {
362 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
363 atomic_read(&ha->loop_state) == LOOP_DEAD) {
364 cmd->result = DID_NO_CONNECT << 16;
365 goto qc_fail_command;
366 }
367 goto qc_host_busy;
368 }
1da177e4
LT		 369
370 spin_unlock_irq(ha->host->host_lock);
371
fca29703
AV		 372 sp = qla2x00_get_new_sp(ha, fcport, cmd, done);
373 if (!sp)
f4f051eb 374 goto qc_host_busy_lock;
1da177e4 375
f4f051eb 376 rval = qla2x00_start_scsi(sp);
377 if (rval != QLA_SUCCESS)
378 goto qc_host_busy_free_sp;
1da177e4 379
f4f051eb 380 spin_lock_irq(ha->host->host_lock);
1da177e4 381
f4f051eb 382 return 0;
1da177e4 383
f4f051eb 384qc_host_busy_free_sp:
385 qla2x00_sp_free_dma(ha, sp);
f4f051eb 386 mempool_free(sp, ha->srb_mempool);
1da177e4 387
f4f051eb 388qc_host_busy_lock:
389 spin_lock_irq(ha->host->host_lock);
1da177e4 390
f4f051eb 391qc_host_busy:
392 return SCSI_MLQUEUE_HOST_BUSY;
1da177e4 393
f4f051eb 394qc_fail_command:
395 done(cmd);
1da177e4 396
f4f051eb 397 return 0;
1da177e4
LT		 398}
399
fca29703
AV		 400
401static int
402qla24xx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
403{
404 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
405 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
19a7b4ae 406 struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
fca29703
AV		 407 srb_t *sp;
408 int rval;
409
19a7b4ae
JSEC		 410 rval = fc_remote_port_chkready(rport);
411 if (rval) {
412 cmd->result = rval;
fca29703
AV		 413 goto qc24_fail_command;
414 }
415
387f96b4 416 /* Close window on fcport/rport state-transitioning. */
417 if (!*(fc_port_t **)rport->dd_data) {
418 cmd->result = DID_IMM_RETRY << 16;
419 goto qc24_fail_command;
420 }
421
fca29703
AV		 422 if (atomic_read(&fcport->state) != FCS_ONLINE) {
423 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
424 atomic_read(&ha->loop_state) == LOOP_DEAD) {
425 cmd->result = DID_NO_CONNECT << 16;
426 goto qc24_fail_command;
427 }
428 goto qc24_host_busy;
429 }
430
431 spin_unlock_irq(ha->host->host_lock);
432
433 sp = qla2x00_get_new_sp(ha, fcport, cmd, done);
434 if (!sp)
435 goto qc24_host_busy_lock;
436
437 rval = qla24xx_start_scsi(sp);
438 if (rval != QLA_SUCCESS)
439 goto qc24_host_busy_free_sp;
440
441 spin_lock_irq(ha->host->host_lock);
442
443 return 0;
444
445qc24_host_busy_free_sp:
446 qla2x00_sp_free_dma(ha, sp);
447 mempool_free(sp, ha->srb_mempool);
448
449qc24_host_busy_lock:
450 spin_lock_irq(ha->host->host_lock);
451
452qc24_host_busy:
453 return SCSI_MLQUEUE_HOST_BUSY;
454
455qc24_fail_command:
456 done(cmd);
457
458 return 0;
459}
460
461
1da177e4
LT		 462/*
463 * qla2x00_eh_wait_on_command
464 * Waits for the command to be returned by the Firmware for some
465 * max time.
466 *
467 * Input:
468 * ha = actual ha whose done queue will contain the command
469 * returned by firmware.
470 * cmd = Scsi Command to wait on.
471 * flag = Abort/Reset(Bus or Device Reset)
472 *
473 * Return:
474 * Not Found : 0
475 * Found : 1
476 */
477static int
478qla2x00_eh_wait_on_command(scsi_qla_host_t *ha, struct scsi_cmnd *cmd)
479{
fe74c71f
AV		 480#define ABORT_POLLING_PERIOD 1000
481#define ABORT_WAIT_ITER ((10 * 1000) / (ABORT_POLLING_PERIOD))
f4f051eb 482 unsigned long wait_iter = ABORT_WAIT_ITER;
483 int ret = QLA_SUCCESS;
1da177e4 484
f4f051eb 485 while (CMD_SP(cmd)) {
fe74c71f 486 msleep(ABORT_POLLING_PERIOD);
1da177e4 487
f4f051eb 488 if (--wait_iter)
489 break;
490 }
491 if (CMD_SP(cmd))
492 ret = QLA_FUNCTION_FAILED;
1da177e4 493
f4f051eb 494 return ret;
1da177e4
LT		 495}
496
497/*
498 * qla2x00_wait_for_hba_online
fa2a1ce5 499 * Wait till the HBA is online after going through
1da177e4
LT		 500 * <= MAX_RETRIES_OF_ISP_ABORT or
501 * finally HBA is disabled ie marked offline
502 *
503 * Input:
504 * ha - pointer to host adapter structure
fa2a1ce5
AV		 505 *
506 * Note:
1da177e4
LT		 507 * Does context switching-Release SPIN_LOCK
508 * (if any) before calling this routine.
509 *
510 * Return:
511 * Success (Adapter is online) : 0
512 * Failed (Adapter is offline/disabled) : 1
513 */
854165f4 514int
1da177e4
LT		 515qla2x00_wait_for_hba_online(scsi_qla_host_t *ha)
516{
fca29703
AV		 517 int return_status;
518 unsigned long wait_online;
1da177e4 519
fa2a1ce5 520 wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
1da177e4
LT		 521 while (((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) ||
522 test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags) ||
523 test_bit(ISP_ABORT_RETRY, &ha->dpc_flags) ||
524 ha->dpc_active) && time_before(jiffies, wait_online)) {
525
526 msleep(1000);
527 }
fa2a1ce5
AV		 528 if (ha->flags.online)
529 return_status = QLA_SUCCESS;
1da177e4
LT		 530 else
531 return_status = QLA_FUNCTION_FAILED;
532
533 DEBUG2(printk("%s return_status=%d\n",__func__,return_status));
534
535 return (return_status);
536}
537
538/*
539 * qla2x00_wait_for_loop_ready
540 * Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
fa2a1ce5 541 * to be in LOOP_READY state.
1da177e4
LT		 542 * Input:
543 * ha - pointer to host adapter structure
fa2a1ce5
AV		 544 *
545 * Note:
1da177e4
LT		 546 * Does context switching-Release SPIN_LOCK
547 * (if any) before calling this routine.
fa2a1ce5 548 *
1da177e4
LT		 549 *
550 * Return:
551 * Success (LOOP_READY) : 0
552 * Failed (LOOP_NOT_READY) : 1
553 */
fa2a1ce5 554static inline int
1da177e4
LT		 555qla2x00_wait_for_loop_ready(scsi_qla_host_t *ha)
556{
557 int return_status = QLA_SUCCESS;
558 unsigned long loop_timeout ;
559
560 /* wait for 5 min at the max for loop to be ready */
fa2a1ce5 561 loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ);
1da177e4
LT		 562
563 while ((!atomic_read(&ha->loop_down_timer) &&
564 atomic_read(&ha->loop_state) == LOOP_DOWN) ||
1da177e4 565 atomic_read(&ha->loop_state) != LOOP_READY) {
57680080
RA		 566 if (atomic_read(&ha->loop_state) == LOOP_DEAD) {
567 return_status = QLA_FUNCTION_FAILED;
568 break;
569 }
1da177e4
LT		 570 msleep(1000);
571 if (time_after_eq(jiffies, loop_timeout)) {
572 return_status = QLA_FUNCTION_FAILED;
573 break;
574 }
575 }
fa2a1ce5 576 return (return_status);
1da177e4
LT		 577}
578
579/**************************************************************************
580* qla2xxx_eh_abort
581*
582* Description:
583* The abort function will abort the specified command.
584*
585* Input:
586* cmd = Linux SCSI command packet to be aborted.
587*
588* Returns:
589* Either SUCCESS or FAILED.
590*
591* Note:
2ea00202 592* Only return FAILED if command not returned by firmware.
1da177e4
LT		 593**************************************************************************/
594int
595qla2xxx_eh_abort(struct scsi_cmnd *cmd)
596{
f4f051eb 597 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
598 srb_t *sp;
599 int ret, i;
600 unsigned int id, lun;
601 unsigned long serial;
18e144d3 602 unsigned long flags;
2ea00202 603 int wait = 0;
1da177e4 604
f4f051eb 605 if (!CMD_SP(cmd))
2ea00202 606 return SUCCESS;
1da177e4 607
2ea00202 608 ret = SUCCESS;
1da177e4 609
f4f051eb 610 id = cmd->device->id;
611 lun = cmd->device->lun;
612 serial = cmd->serial_number;
1da177e4 613
f4f051eb 614 /* Check active list for command command. */
18e144d3 615 spin_lock_irqsave(&ha->hardware_lock, flags);
f4f051eb 616 for (i = 1; i < MAX_OUTSTANDING_COMMANDS; i++) {
617 sp = ha->outstanding_cmds[i];
1da177e4 618
f4f051eb 619 if (sp == NULL)
620 continue;
1da177e4 621
f4f051eb 622 if (sp->cmd != cmd)
623 continue;
1da177e4 624
75bc4190
AV		 625 DEBUG2(printk("%s(%ld): aborting sp %p from RISC. pid=%ld.\n",
626 __func__, ha->host_no, sp, serial));
f4f051eb 627 DEBUG3(qla2x00_print_scsi_cmd(cmd);)
1da177e4 628
18e144d3 629 spin_unlock_irqrestore(&ha->hardware_lock, flags);
abbd8870 630 if (ha->isp_ops.abort_command(ha, sp)) {
f4f051eb 631 DEBUG2(printk("%s(%ld): abort_command "
632 "mbx failed.\n", __func__, ha->host_no));
633 } else {
634 DEBUG3(printk("%s(%ld): abort_command "
635 "mbx success.\n", __func__, ha->host_no));
2ea00202 636 wait = 1;
f4f051eb 637 }
18e144d3 638 spin_lock_irqsave(&ha->hardware_lock, flags);
1da177e4 639
f4f051eb 640 break;
641 }
18e144d3 642 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1da177e4 643
f4f051eb 644 /* Wait for the command to be returned. */
2ea00202 645 if (wait) {
f4f051eb 646 if (qla2x00_eh_wait_on_command(ha, cmd) != QLA_SUCCESS) {
fa2a1ce5 647 qla_printk(KERN_ERR, ha,
f4f051eb 648 "scsi(%ld:%d:%d): Abort handler timed out -- %lx "
649 "%x.\n", ha->host_no, id, lun, serial, ret);
2ea00202 650 ret = FAILED;
f4f051eb 651 }
1da177e4 652 }
1da177e4 653
fa2a1ce5 654 qla_printk(KERN_INFO, ha,
2ea00202
MR		 655 "scsi(%ld:%d:%d): Abort command issued -- %d %lx %x.\n",
656 ha->host_no, id, lun, wait, serial, ret);
1da177e4 657
f4f051eb 658 return ret;
659}
1da177e4 660
f4f051eb 661/**************************************************************************
662* qla2x00_eh_wait_for_pending_target_commands
663*
664* Description:
665* Waits for all the commands to come back from the specified target.
666*
667* Input:
668* ha - pointer to scsi_qla_host structure.
fa2a1ce5 669* t - target
f4f051eb 670* Returns:
671* Either SUCCESS or FAILED.
672*
673* Note:
674**************************************************************************/
675static int
676qla2x00_eh_wait_for_pending_target_commands(scsi_qla_host_t *ha, unsigned int t)
677{
678 int cnt;
679 int status;
680 srb_t *sp;
681 struct scsi_cmnd *cmd;
18e144d3 682 unsigned long flags;
1da177e4 683
f4f051eb 684 status = 0;
1da177e4
LT		 685
686 /*
f4f051eb 687 * Waiting for all commands for the designated target in the active
688 * array
1da177e4
LT		 689 */
690 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
18e144d3 691 spin_lock_irqsave(&ha->hardware_lock, flags);
1da177e4
LT		 692 sp = ha->outstanding_cmds[cnt];
693 if (sp) {
694 cmd = sp->cmd;
18e144d3 695 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1da177e4
LT		 696 if (cmd->device->id == t) {
697 if (!qla2x00_eh_wait_on_command(ha, cmd)) {
698 status = 1;
699 break;
700 }
701 }
f4f051eb 702 } else {
18e144d3 703 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1da177e4
LT		 704 }
705 }
706 return (status);
707}
708
709
710/**************************************************************************
711* qla2xxx_eh_device_reset
712*
713* Description:
714* The device reset function will reset the target and abort any
715* executing commands.
716*
717* NOTE: The use of SP is undefined within this context. Do *NOT*
fa2a1ce5 718* attempt to use this value, even if you determine it is
1da177e4
LT		 719* non-null.
720*
721* Input:
722* cmd = Linux SCSI command packet of the command that cause the
723* bus device reset.
724*
725* Returns:
726* SUCCESS/FAILURE (defined as macro in scsi.h).
727*
728**************************************************************************/
729int
730qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
731{
f4f051eb 732 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
bdf79621 733 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
f4f051eb 734 srb_t *sp;
735 int ret;
736 unsigned int id, lun;
737 unsigned long serial;
1da177e4 738
f4f051eb 739 ret = FAILED;
1da177e4 740
f4f051eb 741 id = cmd->device->id;
742 lun = cmd->device->lun;
743 serial = cmd->serial_number;
1da177e4 744
f4f051eb 745 sp = (srb_t *) CMD_SP(cmd);
bdf79621 746 if (!sp || !fcport)
f4f051eb 747 return ret;
1da177e4
LT		 748
749 qla_printk(KERN_INFO, ha,
f4f051eb 750 "scsi(%ld:%d:%d): DEVICE RESET ISSUED.\n", ha->host_no, id, lun);
1da177e4 751
94d0e7b8 752 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
1da177e4 753 goto eh_dev_reset_done;
1da177e4
LT		 754
755 if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
f4f051eb 756 if (qla2x00_device_reset(ha, fcport) == 0)
757 ret = SUCCESS;
1da177e4
LT		 758
759#if defined(LOGOUT_AFTER_DEVICE_RESET)
f4f051eb 760 if (ret == SUCCESS) {
761 if (fcport->flags & FC_FABRIC_DEVICE) {
abbd8870 762 ha->isp_ops.fabric_logout(ha, fcport->loop_id);
d97994dc 763 qla2x00_mark_device_lost(ha, fcport, 0, 0);
1da177e4
LT		 764 }
765 }
766#endif
767 } else {
768 DEBUG2(printk(KERN_INFO
769 "%s failed: loop not ready\n",__func__);)
770 }
771
f4f051eb 772 if (ret == FAILED) {
1da177e4
LT		 773 DEBUG3(printk("%s(%ld): device reset failed\n",
774 __func__, ha->host_no));
775 qla_printk(KERN_INFO, ha, "%s: device reset failed\n",
776 __func__);
777
778 goto eh_dev_reset_done;
779 }
780
9a41a62b
AV		 781 /* Flush outstanding commands. */
782 if (qla2x00_eh_wait_for_pending_target_commands(ha, id))
783 ret = FAILED;
784 if (ret == FAILED) {
785 DEBUG3(printk("%s(%ld): failed while waiting for commands\n",
786 __func__, ha->host_no));
787 qla_printk(KERN_INFO, ha,
788 "%s: failed while waiting for commands\n", __func__);
789 } else
790 qla_printk(KERN_INFO, ha,
791 "scsi(%ld:%d:%d): DEVICE RESET SUCCEEDED.\n", ha->host_no,
792 id, lun);
28f22b03 793 eh_dev_reset_done:
f4f051eb 794 return ret;
1da177e4
LT		 795}
796
797/**************************************************************************
798* qla2x00_eh_wait_for_pending_commands
799*
800* Description:
801* Waits for all the commands to come back from the specified host.
802*
803* Input:
804* ha - pointer to scsi_qla_host structure.
805*
806* Returns:
807* 1 : SUCCESS
808* 0 : FAILED
809*
810* Note:
811**************************************************************************/
812static int
813qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *ha)
814{
815 int cnt;
816 int status;
817 srb_t *sp;
818 struct scsi_cmnd *cmd;
18e144d3 819 unsigned long flags;
1da177e4
LT		 820
821 status = 1;
822
823 /*
824 * Waiting for all commands for the designated target in the active
825 * array
826 */
827 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
18e144d3 828 spin_lock_irqsave(&ha->hardware_lock, flags);
1da177e4
LT		 829 sp = ha->outstanding_cmds[cnt];
830 if (sp) {
831 cmd = sp->cmd;
18e144d3 832 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1da177e4
LT		 833 status = qla2x00_eh_wait_on_command(ha, cmd);
834 if (status == 0)
835 break;
836 }
837 else {
18e144d3 838 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1da177e4
LT		 839 }
840 }
841 return (status);
842}
843
844
845/**************************************************************************
846* qla2xxx_eh_bus_reset
847*
848* Description:
849* The bus reset function will reset the bus and abort any executing
850* commands.
851*
852* Input:
853* cmd = Linux SCSI command packet of the command that cause the
854* bus reset.
855*
856* Returns:
857* SUCCESS/FAILURE (defined as macro in scsi.h).
858*
859**************************************************************************/
860int
861qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
862{
f4f051eb 863 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
bdf79621 864 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
1da177e4 865 srb_t *sp;
f4f051eb 866 int ret;
867 unsigned int id, lun;
868 unsigned long serial;
869
870 ret = FAILED;
871
872 id = cmd->device->id;
873 lun = cmd->device->lun;
874 serial = cmd->serial_number;
1da177e4 875
1da177e4 876 sp = (srb_t *) CMD_SP(cmd);
bdf79621 877 if (!sp || !fcport)
f4f051eb 878 return ret;
1da177e4
LT		 879
880 qla_printk(KERN_INFO, ha,
f4f051eb 881 "scsi(%ld:%d:%d): LOOP RESET ISSUED.\n", ha->host_no, id, lun);
1da177e4 882
1da177e4
LT		 883 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS) {
884 DEBUG2(printk("%s failed:board disabled\n",__func__));
f4f051eb 885 goto eh_bus_reset_done;
1da177e4
LT		 886 }
887
888 if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
f4f051eb 889 if (qla2x00_loop_reset(ha) == QLA_SUCCESS)
890 ret = SUCCESS;
1da177e4 891 }
f4f051eb 892 if (ret == FAILED)
893 goto eh_bus_reset_done;
1da177e4 894
9a41a62b
AV		 895 /* Flush outstanding commands. */
896 if (!qla2x00_eh_wait_for_pending_commands(ha))
897 ret = FAILED;
1da177e4 898
f4f051eb 899eh_bus_reset_done:
1da177e4 900 qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
f4f051eb 901 (ret == FAILED) ? "failed" : "succeded");
1da177e4 902
f4f051eb 903 return ret;
1da177e4
LT		 904}
905
906/**************************************************************************
907* qla2xxx_eh_host_reset
908*
909* Description:
910* The reset function will reset the Adapter.
911*
912* Input:
913* cmd = Linux SCSI command packet of the command that cause the
914* adapter reset.
915*
916* Returns:
917* Either SUCCESS or FAILED.
918*
919* Note:
920**************************************************************************/
921int
922qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
923{
f4f051eb 924 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
bdf79621 925 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
f4f051eb 926 srb_t *sp;
927 int ret;
928 unsigned int id, lun;
929 unsigned long serial;
1da177e4 930
f4f051eb 931 ret = FAILED;
932
933 id = cmd->device->id;
934 lun = cmd->device->lun;
935 serial = cmd->serial_number;
936
937 sp = (srb_t *) CMD_SP(cmd);
bdf79621 938 if (!sp || !fcport)
f4f051eb 939 return ret;
1da177e4 940
1da177e4 941 qla_printk(KERN_INFO, ha,
f4f051eb 942 "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", ha->host_no, id, lun);
1da177e4 943
1da177e4 944 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
f4f051eb 945 goto eh_host_reset_lock;
1da177e4
LT		 946
947 /*
948 * Fixme-may be dpc thread is active and processing
fa2a1ce5 949 * loop_resync,so wait a while for it to
1da177e4
LT		 950 * be completed and then issue big hammer.Otherwise
951 * it may cause I/O failure as big hammer marks the
952 * devices as lost kicking of the port_down_timer
953 * while dpc is stuck for the mailbox to complete.
954 */
1da177e4
LT		 955 qla2x00_wait_for_loop_ready(ha);
956 set_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
957 if (qla2x00_abort_isp(ha)) {
958 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
959 /* failed. schedule dpc to try */
960 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
961
962 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
f4f051eb 963 goto eh_host_reset_lock;
fa2a1ce5 964 }
1da177e4
LT		 965 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
966
1da177e4 967 /* Waiting for our command in done_queue to be returned to OS.*/
f4f051eb 968 if (qla2x00_eh_wait_for_pending_commands(ha))
969 ret = SUCCESS;
1da177e4 970
f4f051eb 971eh_host_reset_lock:
f4f051eb 972 qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
973 (ret == FAILED) ? "failed" : "succeded");
1da177e4 974
f4f051eb 975 return ret;
976}
1da177e4
LT		 977
978/*
979* qla2x00_loop_reset
980* Issue loop reset.
981*
982* Input:
983* ha = adapter block pointer.
984*
985* Returns:
986* 0 = success
987*/
988static int
989qla2x00_loop_reset(scsi_qla_host_t *ha)
990{
991 int status = QLA_SUCCESS;
bdf79621 992 struct fc_port *fcport;
1da177e4
LT		 993
994 if (ha->flags.enable_lip_reset) {
995 status = qla2x00_lip_reset(ha);
996 }
997
998 if (status == QLA_SUCCESS && ha->flags.enable_target_reset) {
bdf79621 999 list_for_each_entry(fcport, &ha->fcports, list) {
1000 if (fcport->port_type != FCT_TARGET)
1da177e4
LT		 1001 continue;
1002
c00c72ae 1003 status = qla2x00_device_reset(ha, fcport);
bdf79621 1004 if (status != QLA_SUCCESS)
1da177e4 1005 break;
1da177e4
LT		 1006 }
1007 }
1008
1009 if (status == QLA_SUCCESS &&
fa2a1ce5 1010 ((!ha->flags.enable_target_reset &&
1da177e4
LT		 1011 !ha->flags.enable_lip_reset) ||
1012 ha->flags.enable_lip_full_login)) {
1013
1014 status = qla2x00_full_login_lip(ha);
1015 }
1016
1017 /* Issue marker command only when we are going to start the I/O */
1018 ha->marker_needed = 1;
1019
1020 if (status) {
1021 /* Empty */
1022 DEBUG2_3(printk("%s(%ld): **** FAILED ****\n",
1023 __func__,
1024 ha->host_no);)
1025 } else {
1026 /* Empty */
1027 DEBUG3(printk("%s(%ld): exiting normally.\n",
1028 __func__,
1029 ha->host_no);)
1030 }
1031
1032 return(status);
1033}
1034
1035/*
1036 * qla2x00_device_reset
1037 * Issue bus device reset message to the target.
1038 *
1039 * Input:
1040 * ha = adapter block pointer.
1041 * t = SCSI ID.
1042 * TARGET_QUEUE_LOCK must be released.
1043 * ADAPTER_STATE_LOCK must be released.
1044 *
1045 * Context:
1046 * Kernel context.
1047 */
1048static int
1049qla2x00_device_reset(scsi_qla_host_t *ha, fc_port_t *reset_fcport)
1050{
1051 /* Abort Target command will clear Reservation */
abbd8870 1052 return ha->isp_ops.abort_target(reset_fcport);
1da177e4
LT		 1053}
1054
f4f051eb 1055static int
1056qla2xxx_slave_alloc(struct scsi_device *sdev)
1da177e4 1057{
bdf79621 1058 struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1da177e4 1059
19a7b4ae 1060 if (!rport || fc_remote_port_chkready(rport))
f4f051eb 1061 return -ENXIO;
bdf79621 1062
19a7b4ae 1063 sdev->hostdata = *(fc_port_t **)rport->dd_data;
1da177e4 1064
f4f051eb 1065 return 0;
1066}
1da177e4 1067
f4f051eb 1068static int
1069qla2xxx_slave_configure(struct scsi_device *sdev)
1070{
8482e118 1071 scsi_qla_host_t *ha = to_qla_host(sdev->host);
1072 struct fc_rport *rport = starget_to_rport(sdev->sdev_target);
1073
f4f051eb 1074 if (sdev->tagged_supported)
1075 scsi_activate_tcq(sdev, 32);
1076 else
1077 scsi_deactivate_tcq(sdev, 32);
1da177e4 1078
8482e118 1079 rport->dev_loss_tmo = ha->port_down_retry_count + 5;
1080
f4f051eb 1081 return 0;
1082}
1da177e4 1083
f4f051eb 1084static void
1085qla2xxx_slave_destroy(struct scsi_device *sdev)
1086{
1087 sdev->hostdata = NULL;
1da177e4
LT		 1088}
1089
ce7e4af7
AV		 1090static int
1091qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth)
1092{
1093 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1094 return sdev->queue_depth;
1095}
1096
1097static int
1098qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1099{
1100 if (sdev->tagged_supported) {
1101 scsi_set_tag_type(sdev, tag_type);
1102 if (tag_type)
1103 scsi_activate_tcq(sdev, sdev->queue_depth);
1104 else
1105 scsi_deactivate_tcq(sdev, sdev->queue_depth);
1106 } else
1107 tag_type = 0;
1108
1109 return tag_type;
1110}
1111
1da177e4
LT		 1112/**
1113 * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1114 * @ha: HA context
1115 *
1116 * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1117 * supported addressing method.
1118 */
1119static void
1120qla2x00_config_dma_addressing(scsi_qla_host_t *ha)
1121{
7524f9b9 1122 /* Assume a 32bit DMA mask. */
1da177e4 1123 ha->flags.enable_64bit_addressing = 0;
1da177e4 1124
7524f9b9
AV		 1125 if (!dma_set_mask(&ha->pdev->dev, DMA_64BIT_MASK)) {
1126 /* Any upper-dword bits set? */
1127 if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1128 !pci_set_consistent_dma_mask(ha->pdev, DMA_64BIT_MASK)) {
1129 /* Ok, a 64bit DMA mask is applicable. */
1da177e4 1130 ha->flags.enable_64bit_addressing = 1;
abbd8870
AV		 1131 ha->isp_ops.calc_req_entries = qla2x00_calc_iocbs_64;
1132 ha->isp_ops.build_iocbs = qla2x00_build_scsi_iocbs_64;
7524f9b9 1133 return;
1da177e4 1134 }
1da177e4 1135 }
7524f9b9
AV		 1136
1137 dma_set_mask(&ha->pdev->dev, DMA_32BIT_MASK);
1138 pci_set_consistent_dma_mask(ha->pdev, DMA_32BIT_MASK);
1da177e4
LT		 1139}
1140
ea5b6382 1141static inline void
1142qla2x00_set_isp_flags(scsi_qla_host_t *ha)
1143{
1144 ha->device_type = DT_EXTENDED_IDS;
1145 switch (ha->pdev->device) {
1146 case PCI_DEVICE_ID_QLOGIC_ISP2100:
1147 ha->device_type |= DT_ISP2100;
1148 ha->device_type &= ~DT_EXTENDED_IDS;
441d1072 1149 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
ea5b6382 1150 break;
1151 case PCI_DEVICE_ID_QLOGIC_ISP2200:
1152 ha->device_type |= DT_ISP2200;
1153 ha->device_type &= ~DT_EXTENDED_IDS;
441d1072 1154 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
ea5b6382 1155 break;
1156 case PCI_DEVICE_ID_QLOGIC_ISP2300:
1157 ha->device_type |= DT_ISP2300;
4a59f71d 1158 ha->device_type |= DT_ZIO_SUPPORTED;
441d1072 1159 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
ea5b6382 1160 break;
1161 case PCI_DEVICE_ID_QLOGIC_ISP2312:
1162 ha->device_type |= DT_ISP2312;
4a59f71d 1163 ha->device_type |= DT_ZIO_SUPPORTED;
441d1072 1164 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
ea5b6382 1165 break;
1166 case PCI_DEVICE_ID_QLOGIC_ISP2322:
1167 ha->device_type |= DT_ISP2322;
4a59f71d 1168 ha->device_type |= DT_ZIO_SUPPORTED;
ea5b6382 1169 if (ha->pdev->subsystem_vendor == 0x1028 &&
1170 ha->pdev->subsystem_device == 0x0170)
1171 ha->device_type |= DT_OEM_001;
441d1072 1172 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
ea5b6382 1173 break;
1174 case PCI_DEVICE_ID_QLOGIC_ISP6312:
1175 ha->device_type |= DT_ISP6312;
441d1072 1176 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
ea5b6382 1177 break;
1178 case PCI_DEVICE_ID_QLOGIC_ISP6322:
1179 ha->device_type |= DT_ISP6322;
441d1072 1180 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
ea5b6382 1181 break;
1182 case PCI_DEVICE_ID_QLOGIC_ISP2422:
1183 ha->device_type |= DT_ISP2422;
4a59f71d 1184 ha->device_type |= DT_ZIO_SUPPORTED;
441d1072 1185 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
ea5b6382 1186 break;
1187 case PCI_DEVICE_ID_QLOGIC_ISP2432:
1188 ha->device_type |= DT_ISP2432;
4a59f71d 1189 ha->device_type |= DT_ZIO_SUPPORTED;
441d1072 1190 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
ea5b6382 1191 break;
044cc6c8 1192 case PCI_DEVICE_ID_QLOGIC_ISP5422:
1193 ha->device_type |= DT_ISP5422;
441d1072 1194 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
ea5b6382 1195 break;
044cc6c8 1196 case PCI_DEVICE_ID_QLOGIC_ISP5432:
1197 ha->device_type |= DT_ISP5432;
441d1072 1198 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
ea5b6382 1199 break;
1200 }
1201}
1202
1da177e4
LT		 1203static int
1204qla2x00_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
cb63067a 1245 if (pci_request_regions(ha->pdev, QLA2XXX_DRIVER_NAME)) {
1da177e4
LT		 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
1265iospace_error_exit:
1266 return (-ENOMEM);
1267}
1268
abbd8870
AV		 1269static void
1270qla2x00_enable_intrs(scsi_qla_host_t *ha)
1271{
1272 unsigned long flags = 0;
3d71644c 1273 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
abbd8870
AV		 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
1284static void
1285qla2x00_disable_intrs(scsi_qla_host_t *ha)
1286{
1287 unsigned long flags = 0;
3d71644c 1288 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
abbd8870
AV		 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
fca29703
AV		 1298static void
1299qla24xx_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
1311static void
1312qla24xx_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
1da177e4
LT		 1324/*
1325 * PCI driver interface
1326 */
441d1072 1327static int qla2x00_probe_one(struct pci_dev *pdev)
1da177e4 1328{
a1541d5a 1329 int ret = -ENODEV;
fca29703 1330 device_reg_t __iomem *reg;
1da177e4
LT		 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];
8482e118 1337 fc_port_t *fcport;
5433383e 1338 struct scsi_host_template *sht;
1da177e4
LT		 1339
1340 if (pci_enable_device(pdev))
a1541d5a 1341 goto probe_out;
1da177e4 1342
5433383e
AV		 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));
1da177e4
LT		 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;
cb63067a 1361 sprintf(ha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, ha->host_no);
1da177e4 1362
ea5b6382 1363 /* Set ISP-type information. */
1364 qla2x00_set_isp_flags(ha);
1365
1da177e4
LT		 1366 /* Configure PCI I/O space */
1367 ret = qla2x00_iospace_config(ha);
a1541d5a
AV		 1368 if (ret)
1369 goto probe_failed;
1da177e4 1370
1da177e4 1371 qla_printk(KERN_INFO, ha,
5433383e
AV		 1372 "Found an ISP%04X, irq %d, iobase 0x%p\n", pdev->device, pdev->irq,
1373 ha->iobase);
1da177e4
LT		 1374
1375 spin_lock_init(&ha->hardware_lock);
1376
1da177e4 1377 ha->prev_topology = 0;
fca29703 1378 ha->init_cb_size = sizeof(init_cb_t);
cca5335c 1379 ha->mgmt_svr_loop_id = MANAGEMENT_SERVER;
04414013 1380 ha->link_data_rate = LDR_UNKNOWN;
854165f4 1381 ha->optrom_size = OPTROM_SIZE_2300;
1da177e4 1382
abbd8870
AV		 1383 /* Assign ISP specific operations. */
1384 ha->isp_ops.pci_config = qla2100_pci_config;
1385 ha->isp_ops.reset_chip = qla2x00_reset_chip;
1386 ha->isp_ops.chip_diag = qla2x00_chip_diag;
1387 ha->isp_ops.config_rings = qla2x00_config_rings;
1388 ha->isp_ops.reset_adapter = qla2x00_reset_adapter;
1389 ha->isp_ops.nvram_config = qla2x00_nvram_config;
1390 ha->isp_ops.update_fw_options = qla2x00_update_fw_options;
0107109e 1391 ha->isp_ops.load_risc = qla2x00_load_risc;
abbd8870
AV		 1392 ha->isp_ops.pci_info_str = qla2x00_pci_info_str;
1393 ha->isp_ops.fw_version_str = qla2x00_fw_version_str;
1394 ha->isp_ops.intr_handler = qla2100_intr_handler;
1395 ha->isp_ops.enable_intrs = qla2x00_enable_intrs;
1396 ha->isp_ops.disable_intrs = qla2x00_disable_intrs;
1397 ha->isp_ops.abort_command = qla2x00_abort_command;
1398 ha->isp_ops.abort_target = qla2x00_abort_target;
1399 ha->isp_ops.fabric_login = qla2x00_login_fabric;
1400 ha->isp_ops.fabric_logout = qla2x00_fabric_logout;
1401 ha->isp_ops.calc_req_entries = qla2x00_calc_iocbs_32;
1402 ha->isp_ops.build_iocbs = qla2x00_build_scsi_iocbs_32;
1403 ha->isp_ops.prep_ms_iocb = qla2x00_prep_ms_iocb;
cca5335c 1404 ha->isp_ops.prep_ms_fdmi_iocb = qla2x00_prep_ms_fdmi_iocb;
459c5378
AV		 1405 ha->isp_ops.read_nvram = qla2x00_read_nvram_data;
1406 ha->isp_ops.write_nvram = qla2x00_write_nvram_data;
abbd8870
AV		 1407 ha->isp_ops.fw_dump = qla2100_fw_dump;
1408 ha->isp_ops.ascii_fw_dump = qla2100_ascii_fw_dump;
854165f4 1409 ha->isp_ops.read_optrom = qla2x00_read_optrom_data;
1410 ha->isp_ops.write_optrom = qla2x00_write_optrom_data;
1da177e4 1411 if (IS_QLA2100(ha)) {
354d6b21 1412 host->max_id = MAX_TARGETS_2100;
1da177e4
LT		 1413 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
1414 ha->request_q_length = REQUEST_ENTRY_CNT_2100;
1415 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1416 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1417 host->sg_tablesize = 32;
abbd8870 1418 ha->gid_list_info_size = 4;
1da177e4 1419 } else if (IS_QLA2200(ha)) {
354d6b21 1420 host->max_id = MAX_TARGETS_2200;
1da177e4
LT		 1421 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1422 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1423 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1424 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
abbd8870 1425 ha->gid_list_info_size = 4;
fca29703 1426 } else if (IS_QLA23XX(ha)) {
354d6b21 1427 host->max_id = MAX_TARGETS_2200;
1da177e4
LT		 1428 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1429 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1430 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1431 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
abbd8870
AV		 1432 ha->isp_ops.pci_config = qla2300_pci_config;
1433 ha->isp_ops.intr_handler = qla2300_intr_handler;
1434 ha->isp_ops.fw_dump = qla2300_fw_dump;
1435 ha->isp_ops.ascii_fw_dump = qla2300_ascii_fw_dump;
f6df144c 1436 ha->isp_ops.beacon_on = qla2x00_beacon_on;
1437 ha->isp_ops.beacon_off = qla2x00_beacon_off;
1438 ha->isp_ops.beacon_blink = qla2x00_beacon_blink;
abbd8870 1439 ha->gid_list_info_size = 6;
854165f4 1440 if (IS_QLA2322(ha) || IS_QLA6322(ha))
1441 ha->optrom_size = OPTROM_SIZE_2322;
044cc6c8 1442 } else if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
fca29703
AV		 1443 host->max_id = MAX_TARGETS_2200;
1444 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1445 ha->request_q_length = REQUEST_ENTRY_CNT_24XX;
1446 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1447 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1448 ha->init_cb_size = sizeof(struct init_cb_24xx);
cca5335c 1449 ha->mgmt_svr_loop_id = 10;
fca29703
AV		 1450 ha->isp_ops.pci_config = qla24xx_pci_config;
1451 ha->isp_ops.reset_chip = qla24xx_reset_chip;
1452 ha->isp_ops.chip_diag = qla24xx_chip_diag;
1453 ha->isp_ops.config_rings = qla24xx_config_rings;
1454 ha->isp_ops.reset_adapter = qla24xx_reset_adapter;
1455 ha->isp_ops.nvram_config = qla24xx_nvram_config;
1456 ha->isp_ops.update_fw_options = qla24xx_update_fw_options;
5433383e 1457 ha->isp_ops.load_risc = qla24xx_load_risc;
fca29703
AV		 1458 ha->isp_ops.pci_info_str = qla24xx_pci_info_str;
1459 ha->isp_ops.fw_version_str = qla24xx_fw_version_str;
1460 ha->isp_ops.intr_handler = qla24xx_intr_handler;
1461 ha->isp_ops.enable_intrs = qla24xx_enable_intrs;
1462 ha->isp_ops.disable_intrs = qla24xx_disable_intrs;
1463 ha->isp_ops.abort_command = qla24xx_abort_command;
1464 ha->isp_ops.abort_target = qla24xx_abort_target;
1465 ha->isp_ops.fabric_login = qla24xx_login_fabric;
1466 ha->isp_ops.fabric_logout = qla24xx_fabric_logout;
1467 ha->isp_ops.prep_ms_iocb = qla24xx_prep_ms_iocb;
cca5335c 1468 ha->isp_ops.prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb;
fca29703
AV		 1469 ha->isp_ops.read_nvram = qla24xx_read_nvram_data;
1470 ha->isp_ops.write_nvram = qla24xx_write_nvram_data;
1471 ha->isp_ops.fw_dump = qla24xx_fw_dump;
1472 ha->isp_ops.ascii_fw_dump = qla24xx_ascii_fw_dump;
854165f4 1473 ha->isp_ops.read_optrom = qla24xx_read_optrom_data;
1474 ha->isp_ops.write_optrom = qla24xx_write_optrom_data;
f6df144c 1475 ha->isp_ops.beacon_on = qla24xx_beacon_on;
1476 ha->isp_ops.beacon_off = qla24xx_beacon_off;
1477 ha->isp_ops.beacon_blink = qla24xx_beacon_blink;
fca29703 1478 ha->gid_list_info_size = 8;
854165f4 1479 ha->optrom_size = OPTROM_SIZE_24XX;
1da177e4
LT		 1480 }
1481 host->can_queue = ha->request_q_length + 128;
1482
1483 /* load the F/W, read paramaters, and init the H/W */
1484 ha->instance = num_hosts;
1485
1486 init_MUTEX(&ha->mbx_cmd_sem);
1487 init_MUTEX_LOCKED(&ha->mbx_intr_sem);
1488
1489 INIT_LIST_HEAD(&ha->list);
1490 INIT_LIST_HEAD(&ha->fcports);
1da177e4
LT		 1491
1492 /*
1493 * These locks are used to prevent more than one CPU
1494 * from modifying the queue at the same time. The
1495 * higher level "host_lock" will reduce most
1496 * contention for these locks.
1497 */
1498 spin_lock_init(&ha->mbx_reg_lock);
1da177e4 1499
1da177e4
LT		 1500 qla2x00_config_dma_addressing(ha);
1501 if (qla2x00_mem_alloc(ha)) {
1502 qla_printk(KERN_WARNING, ha,
1503 "[ERROR] Failed to allocate memory for adapter\n");
1504
a1541d5a
AV		 1505 ret = -ENOMEM;
1506 goto probe_failed;
1da177e4
LT		 1507 }
1508
1509 if (qla2x00_initialize_adapter(ha) &&
1510 !(ha->device_flags & DFLG_NO_CABLE)) {
1511
1512 qla_printk(KERN_WARNING, ha,
1513 "Failed to initialize adapter\n");
1514
1515 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
1516 "Adapter flags %x.\n",
1517 ha->host_no, ha->device_flags));
1518
a1541d5a 1519 ret = -ENODEV;
1da177e4
LT		 1520 goto probe_failed;
1521 }
1522
1523 /*
1524 * Startup the kernel thread for this host adapter
1525 */
39a11240
CH		 1526 ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
1527 "%s_dpc", ha->host_str);
1528 if (IS_ERR(ha->dpc_thread)) {
1da177e4
LT		 1529 qla_printk(KERN_WARNING, ha,
1530 "Unable to start DPC thread!\n");
39a11240 1531 ret = PTR_ERR(ha->dpc_thread);
1da177e4
LT		 1532 goto probe_failed;
1533 }
1da177e4 1534
a1541d5a
AV		 1535 host->this_id = 255;
1536 host->cmd_per_lun = 3;
1537 host->unique_id = ha->instance;
1538 host->max_cmd_len = MAX_CMDSZ;
75bc4190 1539 host->max_channel = MAX_BUSES - 1;
a1541d5a
AV		 1540 host->max_lun = MAX_LUNS;
1541 host->transportt = qla2xxx_transport_template;
1542
fca29703 1543 ret = request_irq(pdev->irq, ha->isp_ops.intr_handler,
cb63067a 1544 SA_INTERRUPT|SA_SHIRQ, QLA2XXX_DRIVER_NAME, ha);
a1541d5a 1545 if (ret) {
1da177e4
LT		 1546 qla_printk(KERN_WARNING, ha,
1547 "Failed to reserve interrupt %d already in use.\n",
fca29703 1548 pdev->irq);
1da177e4
LT		 1549 goto probe_failed;
1550 }
fca29703 1551 host->irq = pdev->irq;
1da177e4
LT		 1552
1553 /* Initialized the timer */
1554 qla2x00_start_timer(ha, qla2x00_timer, WATCH_INTERVAL);
1555
1556 DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
1557 ha->host_no, ha));
1558
abbd8870 1559 ha->isp_ops.disable_intrs(ha);
1da177e4 1560
1da177e4 1561 spin_lock_irqsave(&ha->hardware_lock, flags);
fca29703 1562 reg = ha->iobase;
044cc6c8 1563 if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
fca29703
AV		 1564 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_HOST_INT);
1565 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_RISC_INT);
1566 } else {
1567 WRT_REG_WORD(&reg->isp.semaphore, 0);
1568 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_RISC_INT);
1569 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_HOST_INT);
1570
1571 /* Enable proper parity */
1572 if (!IS_QLA2100(ha) && !IS_QLA2200(ha)) {
1573 if (IS_QLA2300(ha))
1574 /* SRAM parity */
1575 WRT_REG_WORD(&reg->isp.hccr,
1576 (HCCR_ENABLE_PARITY + 0x1));
1577 else
1578 /* SRAM, Instruction RAM and GP RAM parity */
1579 WRT_REG_WORD(&reg->isp.hccr,
1580 (HCCR_ENABLE_PARITY + 0x7));
1581 }
1da177e4
LT		 1582 }
1583 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1584
abbd8870 1585 ha->isp_ops.enable_intrs(ha);
1da177e4
LT		 1586
1587 /* v2.19.5b6 */
1588 /*
1589 * Wait around max loop_reset_delay secs for the devices to come
1590 * on-line. We don't want Linux scanning before we are ready.
1591 *
1592 */
1593 for (wait_switch = jiffies + (ha->loop_reset_delay * HZ);
1594 time_before(jiffies,wait_switch) &&
1595 !(ha->device_flags & (DFLG_NO_CABLE | DFLG_FABRIC_DEVICES))
1596 && (ha->device_flags & SWITCH_FOUND) ;) {
1597
1598 qla2x00_check_fabric_devices(ha);
1599
1600 msleep(10);
1601 }
1602
a1541d5a 1603 pci_set_drvdata(pdev, ha);
1da177e4
LT		 1604 ha->flags.init_done = 1;
1605 num_hosts++;
1606
a1541d5a
AV		 1607 ret = scsi_add_host(host, &pdev->dev);
1608 if (ret)
1609 goto probe_failed;
1610
1611 qla2x00_alloc_sysfs_attr(ha);
1612
1613 qla2x00_init_host_attr(ha);
1614
1da177e4
LT		 1615 qla_printk(KERN_INFO, ha, "\n"
1616 " QLogic Fibre Channel HBA Driver: %s\n"
1617 " QLogic %s - %s\n"
5433383e
AV		 1618 " ISP%04X: %s @ %s hdma%c, host#=%ld, fw=%s\n",
1619 qla2x00_version_str, ha->model_number,
1620 ha->model_desc ? ha->model_desc: "", pdev->device,
1621 ha->isp_ops.pci_info_str(ha, pci_info), pci_name(pdev),
1622 ha->flags.enable_64bit_addressing ? '+': '-', ha->host_no,
1623 ha->isp_ops.fw_version_str(ha, fw_str));
1da177e4 1624
8482e118 1625 /* Go with fc_rport registration. */
1626 list_for_each_entry(fcport, &ha->fcports, list)
1627 qla2x00_reg_remote_port(ha, fcport);
1da177e4
LT		 1628
1629 return 0;
1630
1631probe_failed:
1632 qla2x00_free_device(ha);
1633
1634 scsi_host_put(host);
1635
1636probe_disable_device:
1637 pci_disable_device(pdev);
1638
a1541d5a
AV		 1639probe_out:
1640 return ret;
1da177e4 1641}
1da177e4 1642
441d1072 1643static void qla2x00_remove_one(struct pci_dev *pdev)
1da177e4
LT		 1644{
1645 scsi_qla_host_t *ha;
1646
1647 ha = pci_get_drvdata(pdev);
1648
8482e118 1649 qla2x00_free_sysfs_attr(ha);
1da177e4 1650
bdf79621 1651 fc_remove_host(ha->host);
1652
1da177e4
LT		 1653 scsi_remove_host(ha->host);
1654
1655 qla2x00_free_device(ha);
1656
1657 scsi_host_put(ha->host);
1658
1659 pci_set_drvdata(pdev, NULL);
1660}
1da177e4
LT		 1661
1662static void
1663qla2x00_free_device(scsi_qla_host_t *ha)
1664{
1da177e4
LT		 1665 /* Disable timer */
1666 if (ha->timer_active)
1667 qla2x00_stop_timer(ha);
1668
1669 /* Kill the kernel thread for this host */
39a11240
CH		 1670 if (ha->dpc_thread) {
1671 struct task_struct *t = ha->dpc_thread;
1da177e4 1672
39a11240
CH		 1673 /*
1674 * qla2xxx_wake_dpc checks for ->dpc_thread
1675 * so we need to zero it out.
1676 */
1677 ha->dpc_thread = NULL;
1678 kthread_stop(t);
1da177e4
LT		 1679 }
1680
f6ef3b18
AV		 1681 /* Stop currently executing firmware. */
1682 qla2x00_stop_firmware(ha);
1da177e4 1683
f6ef3b18
AV		 1684 /* turn-off interrupts on the card */
1685 if (ha->interrupts_on)
1686 ha->isp_ops.disable_intrs(ha);
1687
1688 qla2x00_mem_free(ha);
1da177e4
LT		 1689
1690 ha->flags.online = 0;
1691
1692 /* Detach interrupts */
77347ff7
ZB		 1693 if (ha->host->irq)
1694 free_irq(ha->host->irq, ha);
1da177e4
LT		 1695
1696 /* release io space registers */
1697 if (ha->iobase)
1698 iounmap(ha->iobase);
1699 pci_release_regions(ha->pdev);
1700
1701 pci_disable_device(ha->pdev);
1702}
1703
d97994dc 1704static inline void
1705qla2x00_schedule_rport_del(struct scsi_qla_host *ha, fc_port_t *fcport,
1706 int defer)
1707{
1708 unsigned long flags;
1709 struct fc_rport *rport;
1710
1711 if (!fcport->rport)
1712 return;
1713
1714 rport = fcport->rport;
1715 if (defer) {
1716 spin_lock_irqsave(&fcport->rport_lock, flags);
1717 fcport->drport = rport;
1718 fcport->rport = NULL;
387f96b4 1719 *(fc_port_t **)rport->dd_data = NULL;
d97994dc 1720 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1721 set_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags);
1722 } else {
1723 spin_lock_irqsave(&fcport->rport_lock, flags);
1724 fcport->rport = NULL;
387f96b4 1725 *(fc_port_t **)rport->dd_data = NULL;
d97994dc 1726 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1727 fc_remote_port_delete(rport);
1728 }
1729}
1730
1da177e4
LT		 1731/*
1732 * qla2x00_mark_device_lost Updates fcport state when device goes offline.
1733 *
1734 * Input: ha = adapter block pointer. fcport = port structure pointer.
1735 *
1736 * Return: None.
1737 *
1738 * Context:
1739 */
1740void qla2x00_mark_device_lost(scsi_qla_host_t *ha, fc_port_t *fcport,
d97994dc 1741 int do_login, int defer)
1da177e4 1742{
d97994dc 1743 if (atomic_read(&fcport->state) == FCS_ONLINE)
1744 qla2x00_schedule_rport_del(ha, fcport, defer);
19a7b4ae 1745
fa2a1ce5 1746 /*
1da177e4
LT		 1747 * We may need to retry the login, so don't change the state of the
1748 * port but do the retries.
1749 */
1750 if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
1751 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1752
1753 if (!do_login)
1754 return;
1755
1756 if (fcport->login_retry == 0) {
1757 fcport->login_retry = ha->login_retry_count;
1758 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
1759
1760 DEBUG(printk("scsi(%ld): Port login retry: "
1761 "%02x%02x%02x%02x%02x%02x%02x%02x, "
1762 "id = 0x%04x retry cnt=%d\n",
1763 ha->host_no,
1764 fcport->port_name[0],
1765 fcport->port_name[1],
1766 fcport->port_name[2],
1767 fcport->port_name[3],
1768 fcport->port_name[4],
1769 fcport->port_name[5],
1770 fcport->port_name[6],
1771 fcport->port_name[7],
1772 fcport->loop_id,
1773 fcport->login_retry));
1774 }
1775}
1776
1777/*
1778 * qla2x00_mark_all_devices_lost
1779 * Updates fcport state when device goes offline.
1780 *
1781 * Input:
1782 * ha = adapter block pointer.
1783 * fcport = port structure pointer.
1784 *
1785 * Return:
1786 * None.
1787 *
1788 * Context:
1789 */
1790void
d97994dc 1791qla2x00_mark_all_devices_lost(scsi_qla_host_t *ha, int defer)
1da177e4
LT		 1792{
1793 fc_port_t *fcport;
1794
1795 list_for_each_entry(fcport, &ha->fcports, list) {
1796 if (fcport->port_type != FCT_TARGET)
1797 continue;
1798
1799 /*
1800 * No point in marking the device as lost, if the device is
1801 * already DEAD.
1802 */
1803 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
1804 continue;
d97994dc 1805 if (atomic_read(&fcport->state) == FCS_ONLINE)
1806 qla2x00_schedule_rport_del(ha, fcport, defer);
1da177e4
LT		 1807 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1808 }
d97994dc 1809
39a11240
CH		 1810 if (defer)
1811 qla2xxx_wake_dpc(ha);
1da177e4
LT		 1812}
1813
1814/*
1815* qla2x00_mem_alloc
1816* Allocates adapter memory.
1817*
1818* Returns:
1819* 0 = success.
1820* 1 = failure.
1821*/
1822static uint8_t
1823qla2x00_mem_alloc(scsi_qla_host_t *ha)
1824{
1825 char name[16];
1826 uint8_t status = 1;
1827 int retry= 10;
1828
1829 do {
1830 /*
1831 * This will loop only once if everything goes well, else some
1832 * number of retries will be performed to get around a kernel
1833 * bug where available mem is not allocated until after a
1834 * little delay and a retry.
1835 */
1836 ha->request_ring = dma_alloc_coherent(&ha->pdev->dev,
1837 (ha->request_q_length + 1) * sizeof(request_t),
1838 &ha->request_dma, GFP_KERNEL);
1839 if (ha->request_ring == NULL) {
1840 qla_printk(KERN_WARNING, ha,
1841 "Memory Allocation failed - request_ring\n");
1842
1843 qla2x00_mem_free(ha);
1844 msleep(100);
1845
1846 continue;
1847 }
1848
1849 ha->response_ring = dma_alloc_coherent(&ha->pdev->dev,
1850 (ha->response_q_length + 1) * sizeof(response_t),
1851 &ha->response_dma, GFP_KERNEL);
1852 if (ha->response_ring == NULL) {
1853 qla_printk(KERN_WARNING, ha,
1854 "Memory Allocation failed - response_ring\n");
1855
1856 qla2x00_mem_free(ha);
1857 msleep(100);
1858
1859 continue;
1860 }
1861
1862 ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
1863 &ha->gid_list_dma, GFP_KERNEL);
1864 if (ha->gid_list == NULL) {
1865 qla_printk(KERN_WARNING, ha,
1866 "Memory Allocation failed - gid_list\n");
1867
1868 qla2x00_mem_free(ha);
1869 msleep(100);
1870
1871 continue;
1872 }
1873
cb63067a
AV		 1874 snprintf(name, sizeof(name), "%s_%ld", QLA2XXX_DRIVER_NAME,
1875 ha->host_no);
1da177e4
LT		 1876 ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
1877 DMA_POOL_SIZE, 8, 0);
1878 if (ha->s_dma_pool == NULL) {
1879 qla_printk(KERN_WARNING, ha,
1880 "Memory Allocation failed - s_dma_pool\n");
1881
1882 qla2x00_mem_free(ha);
1883 msleep(100);
1884
1885 continue;
1886 }
1887
1888 /* get consistent memory allocated for init control block */
1889 ha->init_cb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
1890 &ha->init_cb_dma);
1891 if (ha->init_cb == NULL) {
1892 qla_printk(KERN_WARNING, ha,
1893 "Memory Allocation failed - init_cb\n");
1894
1895 qla2x00_mem_free(ha);
1896 msleep(100);
1897
1898 continue;
1899 }
fca29703 1900 memset(ha->init_cb, 0, ha->init_cb_size);
1da177e4 1901
1da177e4
LT		 1902 /* Allocate ioctl related memory. */
1903 if (qla2x00_alloc_ioctl_mem(ha)) {
1904 qla_printk(KERN_WARNING, ha,
1905 "Memory Allocation failed - ioctl_mem\n");
1906
1907 qla2x00_mem_free(ha);
1908 msleep(100);
1909
1910 continue;
1911 }
1912
1913 if (qla2x00_allocate_sp_pool(ha)) {
1914 qla_printk(KERN_WARNING, ha,
1915 "Memory Allocation failed - "
1916 "qla2x00_allocate_sp_pool()\n");
1917
1918 qla2x00_mem_free(ha);
1919 msleep(100);
1920
1921 continue;
1922 }
1923
1924 /* Allocate memory for SNS commands */
1925 if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
1926 /* Get consistent memory allocated for SNS commands */
1927 ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
1928 sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma,
1929 GFP_KERNEL);
1930 if (ha->sns_cmd == NULL) {
1931 /* error */
1932 qla_printk(KERN_WARNING, ha,
1933 "Memory Allocation failed - sns_cmd\n");
1934
1935 qla2x00_mem_free(ha);
1936 msleep(100);
1937
1938 continue;
1939 }
1940 memset(ha->sns_cmd, 0, sizeof(struct sns_cmd_pkt));
1941 } else {
1942 /* Get consistent memory allocated for MS IOCB */
1943 ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
1944 &ha->ms_iocb_dma);
1945 if (ha->ms_iocb == NULL) {
1946 /* error */
1947 qla_printk(KERN_WARNING, ha,
1948 "Memory Allocation failed - ms_iocb\n");
1949
1950 qla2x00_mem_free(ha);
1951 msleep(100);
1952
1953 continue;
1954 }
1955 memset(ha->ms_iocb, 0, sizeof(ms_iocb_entry_t));
1956
1957 /*
1958 * Get consistent memory allocated for CT SNS
1959 * commands
1960 */
1961 ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
1962 sizeof(struct ct_sns_pkt), &ha->ct_sns_dma,
1963 GFP_KERNEL);
1964 if (ha->ct_sns == NULL) {
1965 /* error */
1966 qla_printk(KERN_WARNING, ha,
1967 "Memory Allocation failed - ct_sns\n");
1968
1969 qla2x00_mem_free(ha);
1970 msleep(100);
1971
1972 continue;
1973 }
1974 memset(ha->ct_sns, 0, sizeof(struct ct_sns_pkt));
1975 }
1976
1977 /* Done all allocations without any error. */
1978 status = 0;
1979
1980 } while (retry-- && status != 0);
1981
1982 if (status) {
1983 printk(KERN_WARNING
1984 "%s(): **** FAILED ****\n", __func__);
1985 }
1986
1987 return(status);
1988}
1989
1990/*
1991* qla2x00_mem_free
1992* Frees all adapter allocated memory.
1993*
1994* Input:
1995* ha = adapter block pointer.
1996*/
1997static void
1998qla2x00_mem_free(scsi_qla_host_t *ha)
1999{
1da177e4
LT		 2000 struct list_head *fcpl, *fcptemp;
2001 fc_port_t *fcport;
1da177e4
LT		 2002
2003 if (ha == NULL) {
2004 /* error */
2005 DEBUG2(printk("%s(): ERROR invalid ha pointer.\n", __func__));
2006 return;
2007 }
2008
1da177e4
LT		 2009 /* free ioctl memory */
2010 qla2x00_free_ioctl_mem(ha);
2011
2012 /* free sp pool */
2013 qla2x00_free_sp_pool(ha);
2014
2015 if (ha->sns_cmd)
2016 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
2017 ha->sns_cmd, ha->sns_cmd_dma);
2018
2019 if (ha->ct_sns)
2020 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2021 ha->ct_sns, ha->ct_sns_dma);
2022
2023 if (ha->ms_iocb)
2024 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2025
1da177e4
LT		 2026 if (ha->init_cb)
2027 dma_pool_free(ha->s_dma_pool, ha->init_cb, ha->init_cb_dma);
2028
2029 if (ha->s_dma_pool)
2030 dma_pool_destroy(ha->s_dma_pool);
2031
1da177e4
LT		 2032 if (ha->gid_list)
2033 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2034 ha->gid_list_dma);
2035
2036 if (ha->response_ring)
2037 dma_free_coherent(&ha->pdev->dev,
2038 (ha->response_q_length + 1) * sizeof(response_t),
2039 ha->response_ring, ha->response_dma);
2040
2041 if (ha->request_ring)
2042 dma_free_coherent(&ha->pdev->dev,
2043 (ha->request_q_length + 1) * sizeof(request_t),
2044 ha->request_ring, ha->request_dma);
2045
2046 ha->sns_cmd = NULL;
2047 ha->sns_cmd_dma = 0;
2048 ha->ct_sns = NULL;
2049 ha->ct_sns_dma = 0;
2050 ha->ms_iocb = NULL;
2051 ha->ms_iocb_dma = 0;
1da177e4
LT		 2052 ha->init_cb = NULL;
2053 ha->init_cb_dma = 0;
2054
2055 ha->s_dma_pool = NULL;
2056
1da177e4
LT		 2057 ha->gid_list = NULL;
2058 ha->gid_list_dma = 0;
2059
2060 ha->response_ring = NULL;
2061 ha->response_dma = 0;
2062 ha->request_ring = NULL;
2063 ha->request_dma = 0;
2064
2065 list_for_each_safe(fcpl, fcptemp, &ha->fcports) {
2066 fcport = list_entry(fcpl, fc_port_t, list);
2067
1da177e4
LT		 2068 /* fc ports */
2069 list_del_init(&fcport->list);
2070 kfree(fcport);
2071 }
2072 INIT_LIST_HEAD(&ha->fcports);
2073
d4e3e04d 2074 vfree(ha->fw_dump);
fca29703 2075 vfree(ha->fw_dump_buffer);
1da177e4
LT		 2076
2077 ha->fw_dump = NULL;
fca29703 2078 ha->fw_dumped = 0;
1da177e4
LT		 2079 ha->fw_dump_reading = 0;
2080 ha->fw_dump_buffer = NULL;
854165f4 2081
2082 vfree(ha->optrom_buffer);
1da177e4
LT		 2083}
2084
2085/*
2086 * qla2x00_allocate_sp_pool
2087 * This routine is called during initialization to allocate
2088 * memory for local srb_t.
2089 *
2090 * Input:
2091 * ha = adapter block pointer.
2092 *
2093 * Context:
2094 * Kernel context.
1da177e4
LT		 2095 */
2096static int
fa2a1ce5 2097qla2x00_allocate_sp_pool(scsi_qla_host_t *ha)
1da177e4
LT		 2098{
2099 int rval;
2100
2101 rval = QLA_SUCCESS;
93d2341c 2102 ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
1da177e4
LT		 2103 if (ha->srb_mempool == NULL) {
2104 qla_printk(KERN_INFO, ha, "Unable to allocate SRB mempool.\n");
2105 rval = QLA_FUNCTION_FAILED;
2106 }
2107 return (rval);
2108}
2109
2110/*
2111 * This routine frees all adapter allocated memory.
fa2a1ce5 2112 *
1da177e4
LT		 2113 */
2114static void
fa2a1ce5 2115qla2x00_free_sp_pool( scsi_qla_host_t *ha)
1da177e4
LT		 2116{
2117 if (ha->srb_mempool) {
2118 mempool_destroy(ha->srb_mempool);
2119 ha->srb_mempool = NULL;
2120 }
2121}
2122
2123/**************************************************************************
2124* qla2x00_do_dpc
2125* This kernel thread is a task that is schedule by the interrupt handler
2126* to perform the background processing for interrupts.
2127*
2128* Notes:
2129* This task always run in the context of a kernel thread. It
2130* is kick-off by the driver's detect code and starts up
2131* up one per adapter. It immediately goes to sleep and waits for
2132* some fibre event. When either the interrupt handler or
2133* the timer routine detects a event it will one of the task
2134* bits then wake us up.
2135**************************************************************************/
2136static int
2137qla2x00_do_dpc(void *data)
2138{
1da177e4
LT		 2139 scsi_qla_host_t *ha;
2140 fc_port_t *fcport;
1da177e4 2141 uint8_t status;
1da177e4 2142 uint16_t next_loopid;
1da177e4
LT		 2143
2144 ha = (scsi_qla_host_t *)data;
2145
1da177e4
LT		 2146 set_user_nice(current, -20);
2147
39a11240 2148 while (!kthread_should_stop()) {
1da177e4
LT		 2149 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
2150
39a11240
CH		 2151 set_current_state(TASK_INTERRUPTIBLE);
2152 schedule();
2153 __set_current_state(TASK_RUNNING);
1da177e4
LT		 2154
2155 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
2156
2157 /* Initialization not yet finished. Don't do anything yet. */
39a11240 2158 if (!ha->flags.init_done)
1da177e4
LT		 2159 continue;
2160
2161 DEBUG3(printk("scsi(%ld): DPC handler\n", ha->host_no));
2162
2163 ha->dpc_active = 1;
2164
1da177e4 2165 if (ha->flags.mbox_busy) {
1da177e4
LT		 2166 ha->dpc_active = 0;
2167 continue;
2168 }
2169
2170 if (test_and_clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) {
2171
2172 DEBUG(printk("scsi(%ld): dpc: sched "
2173 "qla2x00_abort_isp ha = %p\n",
2174 ha->host_no, ha));
2175 if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
2176 &ha->dpc_flags))) {
2177
2178 if (qla2x00_abort_isp(ha)) {
2179 /* failed. retry later */
2180 set_bit(ISP_ABORT_NEEDED,
2181 &ha->dpc_flags);
2182 }
2183 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2184 }
2185 DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
2186 ha->host_no));
2187 }
2188
d97994dc 2189 if (test_and_clear_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags))
2190 qla2x00_update_fcports(ha);
2191
91ca7b01
AV		 2192 if (test_and_clear_bit(LOOP_RESET_NEEDED, &ha->dpc_flags)) {
2193 DEBUG(printk("scsi(%ld): dpc: sched loop_reset()\n",
2194 ha->host_no));
2195 qla2x00_loop_reset(ha);
2196 }
2197
1da177e4
LT		 2198 if (test_and_clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) &&
2199 (!(test_and_set_bit(RESET_ACTIVE, &ha->dpc_flags)))) {
2200
2201 DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
2202 ha->host_no));
2203
2204 qla2x00_rst_aen(ha);
2205 clear_bit(RESET_ACTIVE, &ha->dpc_flags);
2206 }
2207
2208 /* Retry each device up to login retry count */
2209 if ((test_and_clear_bit(RELOGIN_NEEDED, &ha->dpc_flags)) &&
2210 !test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) &&
2211 atomic_read(&ha->loop_state) != LOOP_DOWN) {
2212
2213 DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
2214 ha->host_no));
2215
2216 next_loopid = 0;
2217 list_for_each_entry(fcport, &ha->fcports, list) {
2218 if (fcport->port_type != FCT_TARGET)
2219 continue;
2220
2221 /*
2222 * If the port is not ONLINE then try to login
2223 * to it if we haven't run out of retries.
2224 */
2225 if (atomic_read(&fcport->state) != FCS_ONLINE &&
2226 fcport->login_retry) {
2227
2228 fcport->login_retry--;
2229 if (fcport->flags & FCF_FABRIC_DEVICE) {
2230 if (fcport->flags &
2231 FCF_TAPE_PRESENT)
abbd8870 2232 ha->isp_ops.fabric_logout(
1c7c6357
AV		 2233 ha, fcport->loop_id,
2234 fcport->d_id.b.domain,
2235 fcport->d_id.b.area,
2236 fcport->d_id.b.al_pa);
1da177e4
LT		 2237 status = qla2x00_fabric_login(
2238 ha, fcport, &next_loopid);
2239 } else
2240 status =
2241 qla2x00_local_device_login(
9a52a57c 2242 ha, fcport);
1da177e4
LT		 2243
2244 if (status == QLA_SUCCESS) {
2245 fcport->old_loop_id = fcport->loop_id;
2246
2247 DEBUG(printk("scsi(%ld): port login OK: logged in ID 0x%x\n",
2248 ha->host_no, fcport->loop_id));
fa2a1ce5 2249
052c40c8 2250 qla2x00_update_fcport(ha,
2251 fcport);
1da177e4
LT		 2252 } else if (status == 1) {
2253 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
2254 /* retry the login again */
2255 DEBUG(printk("scsi(%ld): Retrying %d login again loop_id 0x%x\n",
2256 ha->host_no,
2257 fcport->login_retry, fcport->loop_id));
2258 } else {
2259 fcport->login_retry = 0;
2260 }
2261 }
2262 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2263 break;
2264 }
2265 DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
2266 ha->host_no));
2267 }
2268
2269 if ((test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags)) &&
2270 atomic_read(&ha->loop_state) != LOOP_DOWN) {
2271
2272 clear_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags);
2273 DEBUG(printk("scsi(%ld): qla2x00_login_retry()\n",
2274 ha->host_no));
fa2a1ce5 2275
1da177e4
LT		 2276 set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
2277
2278 DEBUG(printk("scsi(%ld): qla2x00_login_retry - end\n",
2279 ha->host_no));
2280 }
2281
2282 if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
2283
2284 DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
2285 ha->host_no));
2286
2287 if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
2288 &ha->dpc_flags))) {
2289
2290 qla2x00_loop_resync(ha);
2291
2292 clear_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags);
2293 }
2294
2295 DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
2296 ha->host_no));
2297 }
2298
1da177e4
LT		 2299 if (test_and_clear_bit(FCPORT_RESCAN_NEEDED, &ha->dpc_flags)) {
2300
2301 DEBUG(printk("scsi(%ld): Rescan flagged fcports...\n",
2302 ha->host_no));
2303
2304 qla2x00_rescan_fcports(ha);
2305
2306 DEBUG(printk("scsi(%ld): Rescan flagged fcports..."
2307 "end.\n",
2308 ha->host_no));
2309 }
2310
1da177e4 2311 if (!ha->interrupts_on)
abbd8870 2312 ha->isp_ops.enable_intrs(ha);
1da177e4 2313
f6df144c 2314 if (test_and_clear_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags))
2315 ha->isp_ops.beacon_blink(ha);
2316
1da177e4
LT		 2317 ha->dpc_active = 0;
2318 } /* End of while(1) */
2319
2320 DEBUG(printk("scsi(%ld): DPC handler exiting\n", ha->host_no));
2321
2322 /*
2323 * Make sure that nobody tries to wake us up again.
2324 */
1da177e4
LT		 2325 ha->dpc_active = 0;
2326
39a11240
CH		 2327 return 0;
2328}
2329
2330void
2331qla2xxx_wake_dpc(scsi_qla_host_t *ha)
2332{
2333 if (ha->dpc_thread)
2334 wake_up_process(ha->dpc_thread);
1da177e4
LT		 2335}
2336
1da177e4
LT		 2337/*
2338* qla2x00_rst_aen
2339* Processes asynchronous reset.
2340*
2341* Input:
2342* ha = adapter block pointer.
2343*/
2344static void
fa2a1ce5 2345qla2x00_rst_aen(scsi_qla_host_t *ha)
1da177e4
LT		 2346{
2347 if (ha->flags.online && !ha->flags.reset_active &&
2348 !atomic_read(&ha->loop_down_timer) &&
2349 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) {
2350 do {
2351 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
2352
2353 /*
2354 * Issue marker command only when we are going to start
2355 * the I/O.
2356 */
2357 ha->marker_needed = 1;
2358 } while (!atomic_read(&ha->loop_down_timer) &&
2359 (test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags)));
2360 }
2361}
2362
f4f051eb 2363static void
2364qla2x00_sp_free_dma(scsi_qla_host_t *ha, srb_t *sp)
2365{
2366 struct scsi_cmnd *cmd = sp->cmd;
2367
2368 if (sp->flags & SRB_DMA_VALID) {
2369 if (cmd->use_sg) {
2370 dma_unmap_sg(&ha->pdev->dev, cmd->request_buffer,
2371 cmd->use_sg, cmd->sc_data_direction);
2372 } else if (cmd->request_bufflen) {
2373 dma_unmap_single(&ha->pdev->dev, sp->dma_handle,
2374 cmd->request_bufflen, cmd->sc_data_direction);
2375 }
2376 sp->flags &= ~SRB_DMA_VALID;
2377 }
fca29703 2378 CMD_SP(cmd) = NULL;
f4f051eb 2379}
2380
2381void
2382qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *sp)
2383{
2384 struct scsi_cmnd *cmd = sp->cmd;
2385
2386 qla2x00_sp_free_dma(ha, sp);
2387
f4f051eb 2388 mempool_free(sp, ha->srb_mempool);
2389
2390 cmd->scsi_done(cmd);
2391}
bdf79621 2392
1da177e4
LT		 2393/**************************************************************************
2394* qla2x00_timer
2395*
2396* Description:
2397* One second timer
2398*
2399* Context: Interrupt
2400***************************************************************************/
2401static void
2402qla2x00_timer(scsi_qla_host_t *ha)
2403{
1da177e4
LT		 2404 unsigned long cpu_flags = 0;
2405 fc_port_t *fcport;
1da177e4
LT		 2406 int start_dpc = 0;
2407 int index;
2408 srb_t *sp;
f4f051eb 2409 int t;
1da177e4
LT		 2410
2411 /*
2412 * Ports - Port down timer.
2413 *
2414 * Whenever, a port is in the LOST state we start decrementing its port
2415 * down timer every second until it reaches zero. Once it reaches zero
fa2a1ce5 2416 * the port it marked DEAD.
1da177e4
LT		 2417 */
2418 t = 0;
2419 list_for_each_entry(fcport, &ha->fcports, list) {
2420 if (fcport->port_type != FCT_TARGET)
2421 continue;
2422
2423 if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
2424
2425 if (atomic_read(&fcport->port_down_timer) == 0)
2426 continue;
2427
fa2a1ce5 2428 if (atomic_dec_and_test(&fcport->port_down_timer) != 0)
1da177e4 2429 atomic_set(&fcport->state, FCS_DEVICE_DEAD);
fa2a1ce5 2430
1da177e4 2431 DEBUG(printk("scsi(%ld): fcport-%d - port retry count: "
fca29703 2432 "%d remaining\n",
1da177e4
LT		 2433 ha->host_no,
2434 t, atomic_read(&fcport->port_down_timer)));
2435 }
2436 t++;
2437 } /* End of for fcport */
2438
1da177e4
LT		 2439
2440 /* Loop down handler. */
2441 if (atomic_read(&ha->loop_down_timer) > 0 &&
2442 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags)) && ha->flags.online) {
2443
2444 if (atomic_read(&ha->loop_down_timer) ==
2445 ha->loop_down_abort_time) {
2446
2447 DEBUG(printk("scsi(%ld): Loop Down - aborting the "
2448 "queues before time expire\n",
2449 ha->host_no));
2450
2451 if (!IS_QLA2100(ha) && ha->link_down_timeout)
fa2a1ce5 2452 atomic_set(&ha->loop_state, LOOP_DEAD);
1da177e4
LT		 2453
2454 /* Schedule an ISP abort to return any tape commands. */
2455 spin_lock_irqsave(&ha->hardware_lock, cpu_flags);
2456 for (index = 1; index < MAX_OUTSTANDING_COMMANDS;
2457 index++) {
bdf79621 2458 fc_port_t *sfcp;
2459
1da177e4
LT		 2460 sp = ha->outstanding_cmds[index];
2461 if (!sp)
2462 continue;
bdf79621 2463 sfcp = sp->fcport;
2464 if (!(sfcp->flags & FCF_TAPE_PRESENT))
1da177e4
LT		 2465 continue;
2466
2467 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2468 break;
2469 }
2470 spin_unlock_irqrestore(&ha->hardware_lock, cpu_flags);
2471
2472 set_bit(ABORT_QUEUES_NEEDED, &ha->dpc_flags);
2473 start_dpc++;
2474 }
2475
2476 /* if the loop has been down for 4 minutes, reinit adapter */
2477 if (atomic_dec_and_test(&ha->loop_down_timer) != 0) {
2478 DEBUG(printk("scsi(%ld): Loop down exceed 4 mins - "
2479 "restarting queues.\n",
2480 ha->host_no));
2481
2482 set_bit(RESTART_QUEUES_NEEDED, &ha->dpc_flags);
2483 start_dpc++;
2484
2485 if (!(ha->device_flags & DFLG_NO_CABLE)) {
2486 DEBUG(printk("scsi(%ld): Loop down - "
2487 "aborting ISP.\n",
2488 ha->host_no));
2489 qla_printk(KERN_WARNING, ha,
2490 "Loop down - aborting ISP.\n");
2491
2492 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2493 }
2494 }
fca29703 2495 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
1da177e4
LT		 2496 ha->host_no,
2497 atomic_read(&ha->loop_down_timer)));
2498 }
2499
f6df144c 2500 /* Check if beacon LED needs to be blinked */
2501 if (ha->beacon_blink_led == 1) {
2502 set_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags);
2503 start_dpc++;
2504 }
2505
1da177e4
LT		 2506 /* Schedule the DPC routine if needed */
2507 if ((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags) ||
2508 test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) ||
91ca7b01 2509 test_bit(LOOP_RESET_NEEDED, &ha->dpc_flags) ||
d97994dc 2510 test_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags) ||
1da177e4
LT		 2511 start_dpc ||
2512 test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags) ||
f4f051eb 2513 test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) ||
f6df144c 2514 test_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags) ||
39a11240
CH		 2515 test_bit(RELOGIN_NEEDED, &ha->dpc_flags)))
2516 qla2xxx_wake_dpc(ha);
1da177e4
LT		 2517
2518 qla2x00_restart_timer(ha, WATCH_INTERVAL);
2519}
2520
1da177e4
LT		 2521/* XXX(hch): crude hack to emulate a down_timeout() */
2522int
2523qla2x00_down_timeout(struct semaphore *sema, unsigned long timeout)
2524{
fe74c71f
AV		 2525 const unsigned int step = 100; /* msecs */
2526 unsigned int iterations = jiffies_to_msecs(timeout)/100;
1da177e4
LT		 2527
2528 do {
2529 if (!down_trylock(sema))
2530 return 0;
fe74c71f 2531 if (msleep_interruptible(step))
1da177e4 2532 break;
fe74c71f 2533 } while (--iterations >= 0);
1da177e4
LT		 2534
2535 return -ETIMEDOUT;
2536}
2537
5433383e
AV		 2538/* Firmware interface routines. */
2539
48c02fde 2540#define FW_BLOBS 5
5433383e
AV		 2541#define FW_ISP21XX 0
2542#define FW_ISP22XX 1
2543#define FW_ISP2300 2
2544#define FW_ISP2322 3
48c02fde 2545#define FW_ISP24XX 4
5433383e
AV		 2546
2547static DECLARE_MUTEX(qla_fw_lock);
2548
2549static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
2550 { .name = "ql2100_fw.bin", .segs = { 0x1000, 0 }, },
2551 { .name = "ql2200_fw.bin", .segs = { 0x1000, 0 }, },
2552 { .name = "ql2300_fw.bin", .segs = { 0x800, 0 }, },
2553 { .name = "ql2322_fw.bin", .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
5433383e
AV		 2554 { .name = "ql2400_fw.bin", },
2555};
2556
2557struct fw_blob *
2558qla2x00_request_firmware(scsi_qla_host_t *ha)
2559{
2560 struct fw_blob *blob;
2561
2562 blob = NULL;
2563 if (IS_QLA2100(ha)) {
2564 blob = &qla_fw_blobs[FW_ISP21XX];
2565 } else if (IS_QLA2200(ha)) {
2566 blob = &qla_fw_blobs[FW_ISP22XX];
48c02fde 2567 } else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
5433383e 2568 blob = &qla_fw_blobs[FW_ISP2300];
48c02fde 2569 } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
5433383e 2570 blob = &qla_fw_blobs[FW_ISP2322];
044cc6c8 2571 } else if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
5433383e
AV		 2572 blob = &qla_fw_blobs[FW_ISP24XX];
2573 }
2574
2575 down(&qla_fw_lock);
2576 if (blob->fw)
2577 goto out;
2578
2579 if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
2580 DEBUG2(printk("scsi(%ld): Failed to load firmware image "
2581 "(%s).\n", ha->host_no, blob->name));
2582 blob->fw = NULL;
2583 blob = NULL;
2584 goto out;
2585 }
2586
2587out:
2588 up(&qla_fw_lock);
2589 return blob;
2590}
2591
2592static void
2593qla2x00_release_firmware(void)
2594{
2595 int idx;
2596
2597 down(&qla_fw_lock);
2598 for (idx = 0; idx < FW_BLOBS; idx++)
2599 if (qla_fw_blobs[idx].fw)
2600 release_firmware(qla_fw_blobs[idx].fw);
2601 up(&qla_fw_lock);
2602}
2603
5433383e 2604static struct pci_device_id qla2xxx_pci_tbl[] = {
47f5e069
AV		 2605 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
2606 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
2607 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
2608 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
2609 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
2610 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
2611 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
2612 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
2613 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
2614 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
2615 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
5433383e
AV		 2616 { 0 },
2617};
2618MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
2619
2620static int __devinit
2621qla2xxx_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
2622{
441d1072 2623 return qla2x00_probe_one(pdev);
5433383e
AV		 2624}
2625
2626static void __devexit
2627qla2xxx_remove_one(struct pci_dev *pdev)
2628{
2629 qla2x00_remove_one(pdev);
2630}
2631
fca29703 2632static struct pci_driver qla2xxx_pci_driver = {
cb63067a 2633 .name = QLA2XXX_DRIVER_NAME,
0a21ef1e
JB		 2634 .driver = {
2635 .owner = THIS_MODULE,
2636 },
fca29703
AV		 2637 .id_table = qla2xxx_pci_tbl,
2638 .probe = qla2xxx_probe_one,
2639 .remove = __devexit_p(qla2xxx_remove_one),
2640};
2641
331e3476
AV		 2642static inline int
2643qla2x00_pci_module_init(void)
2644{
2645 return pci_module_init(&qla2xxx_pci_driver);
2646}
2647
2648static inline void
2649qla2x00_pci_module_exit(void)
2650{
2651 pci_unregister_driver(&qla2xxx_pci_driver);
2652}
2653
1da177e4
LT		 2654/**
2655 * qla2x00_module_init - Module initialization.
2656 **/
2657static int __init
2658qla2x00_module_init(void)
2659{
fca29703
AV		 2660 int ret = 0;
2661
1da177e4 2662 /* Allocate cache for SRBs. */
354d6b21 2663 srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
1da177e4
LT		 2664 SLAB_HWCACHE_ALIGN, NULL, NULL);
2665 if (srb_cachep == NULL) {
2666 printk(KERN_ERR
2667 "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
2668 return -ENOMEM;
2669 }
2670
2671 /* Derive version string. */
2672 strcpy(qla2x00_version_str, QLA2XXX_VERSION);
2673#if DEBUG_QLA2100
2674 strcat(qla2x00_version_str, "-debug");
2675#endif
1c97a12a
AV		 2676 qla2xxx_transport_template =
2677 fc_attach_transport(&qla2xxx_transport_functions);
1da177e4
LT		 2678 if (!qla2xxx_transport_template)
2679 return -ENODEV;
2680
2681 printk(KERN_INFO "QLogic Fibre Channel HBA Driver\n");
331e3476 2682 ret = qla2x00_pci_module_init();
fca29703
AV		 2683 if (ret) {
2684 kmem_cache_destroy(srb_cachep);
2685 fc_release_transport(qla2xxx_transport_template);
2686 }
2687 return ret;
1da177e4
LT		 2688}
2689
2690/**
2691 * qla2x00_module_exit - Module cleanup.
2692 **/
2693static void __exit
2694qla2x00_module_exit(void)
2695{
331e3476 2696 qla2x00_pci_module_exit();
5433383e 2697 qla2x00_release_firmware();
354d6b21 2698 kmem_cache_destroy(srb_cachep);
1da177e4
LT		 2699 fc_release_transport(qla2xxx_transport_template);
2700}
2701
2702module_init(qla2x00_module_init);
2703module_exit(qla2x00_module_exit);
2704
2705MODULE_AUTHOR("QLogic Corporation");
2706MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
2707MODULE_LICENSE("GPL");
2708MODULE_VERSION(QLA2XXX_VERSION);
Linux 6.x block layer and io_uring tree(s)