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[SCSI] qla2xxx: Return correct data-len during NVRAM retrieval.
[net-next-2.6.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>
11#include <linux/smp_lock.h>
12#include <linux/delay.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 */
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
331e3476
AV		 57#if defined(CONFIG_SCSI_QLA2XXX_EMBEDDED_FIRMWARE)
58int ql2xfwloadflash;
59module_param(ql2xfwloadflash, int, S_IRUGO|S_IRUSR);
60MODULE_PARM_DESC(ql2xfwloadflash,
61 "Load ISP24xx firmware image from FLASH (onboard memory).");
62#endif
63
1da177e4
LT		 64static void qla2x00_free_device(scsi_qla_host_t *);
65
66static void qla2x00_config_dma_addressing(scsi_qla_host_t *ha);
67
cca5335c
AV		 68int ql2xfdmienable;
69module_param(ql2xfdmienable, int, S_IRUGO|S_IRUSR);
70MODULE_PARM_DESC(ql2xfdmienable,
71 "Enables FDMI registratons "
72 "Default is 0 - no FDMI. 1 - perfom FDMI.");
73
79f89a42
AV		 74int ql2xprocessrscn;
75module_param(ql2xprocessrscn, int, S_IRUGO|S_IRUSR);
76MODULE_PARM_DESC(ql2xprocessrscn,
77 "Option to enable port RSCN handling via a series of less"
78 "fabric intrusive ADISCs and PLOGIs.");
79
1da177e4 80/*
fa2a1ce5 81 * SCSI host template entry points
1da177e4
LT		 82 */
83static int qla2xxx_slave_configure(struct scsi_device * device);
f4f051eb
AV		 84static int qla2xxx_slave_alloc(struct scsi_device *);
85static void qla2xxx_slave_destroy(struct scsi_device *);
1da177e4
LT		 86static int qla2x00_queuecommand(struct scsi_cmnd *cmd,
87 void (*fn)(struct scsi_cmnd *));
fca29703
AV		 88static int qla24xx_queuecommand(struct scsi_cmnd *cmd,
89 void (*fn)(struct scsi_cmnd *));
1da177e4
LT		 90static int qla2xxx_eh_abort(struct scsi_cmnd *);
91static int qla2xxx_eh_device_reset(struct scsi_cmnd *);
92static int qla2xxx_eh_bus_reset(struct scsi_cmnd *);
93static int qla2xxx_eh_host_reset(struct scsi_cmnd *);
94static int qla2x00_loop_reset(scsi_qla_host_t *ha);
95static int qla2x00_device_reset(scsi_qla_host_t *, fc_port_t *);
96
ce7e4af7
AV		 97static int qla2x00_change_queue_depth(struct scsi_device *, int);
98static int qla2x00_change_queue_type(struct scsi_device *, int);
99
1da177e4
LT		 100static struct scsi_host_template qla2x00_driver_template = {
101 .module = THIS_MODULE,
102 .name = "qla2xxx",
1da177e4
LT		 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
f4f051eb
AV		 112 .slave_alloc = qla2xxx_slave_alloc,
113 .slave_destroy = qla2xxx_slave_destroy,
ce7e4af7
AV		 114 .change_queue_depth = qla2x00_change_queue_depth,
115 .change_queue_type = qla2x00_change_queue_type,
1da177e4
LT		 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,
afb046e2 126 .shost_attrs = qla2x00_host_attrs,
1da177e4
LT		 127};
128
fca29703
AV		 129static 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,
ce7e4af7
AV		 143 .change_queue_depth = qla2x00_change_queue_depth,
144 .change_queue_type = qla2x00_change_queue_type,
fca29703
AV		 145 .this_id = -1,
146 .cmd_per_lun = 3,
147 .use_clustering = ENABLE_CLUSTERING,
148 .sg_tablesize = SG_ALL,
149
150 .max_sectors = 0xFFFF,
afb046e2 151 .shost_attrs = qla2x00_host_attrs,
fca29703
AV		 152};
153
1da177e4
LT		 154static struct scsi_transport_template *qla2xxx_transport_template = NULL;
155
1da177e4
LT		 156/* TODO Convert to inlines
157 *
158 * Timer routines
159 */
160#define WATCH_INTERVAL 1 /* number of seconds */
161
162static void qla2x00_timer(scsi_qla_host_t *);
163
164static __inline__ void qla2x00_start_timer(scsi_qla_host_t *,
165 void *, unsigned long);
166static __inline__ void qla2x00_restart_timer(scsi_qla_host_t *, unsigned long);
167static __inline__ void qla2x00_stop_timer(scsi_qla_host_t *);
168
169static inline void
170qla2x00_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
180static inline void
181qla2x00_restart_timer(scsi_qla_host_t *ha, unsigned long interval)
182{
183 mod_timer(&ha->timer, jiffies + interval * HZ);
184}
185
186static __inline__ void
187qla2x00_stop_timer(scsi_qla_host_t *ha)
188{
189 del_timer_sync(&ha->timer);
190 ha->timer_active = 0;
191}
192
1da177e4
LT		 193static int qla2x00_do_dpc(void *data);
194
195static void qla2x00_rst_aen(scsi_qla_host_t *);
196
197static uint8_t qla2x00_mem_alloc(scsi_qla_host_t *);
198static void qla2x00_mem_free(scsi_qla_host_t *ha);
199static int qla2x00_allocate_sp_pool( scsi_qla_host_t *ha);
200static void qla2x00_free_sp_pool(scsi_qla_host_t *ha);
f4f051eb
AV		 201static void qla2x00_sp_free_dma(scsi_qla_host_t *, srb_t *);
202void qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *);
1da177e4 203
1da177e4
LT		 204/* -------------------------------------------------------------------------- */
205
1da177e4 206static char *
abbd8870 207qla2x00_pci_info_str(struct scsi_qla_host *ha, char *str)
1da177e4
LT		 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
fca29703
AV		 229static char *
230qla24xx_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
1da177e4 277char *
abbd8870 278qla2x00_fw_version_str(struct scsi_qla_host *ha, char *str)
1da177e4
LT		 279{
280 char un_str[10];
fa2a1ce5 281
1da177e4
LT		 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
fca29703
AV		 315char *
316qla24xx_fw_version_str(struct scsi_qla_host *ha, char *str)
317{
f0883ac6
AV		 318 sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
319 ha->fw_minor_version,
320 ha->fw_subminor_version);
321
fca29703
AV		 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;
fca29703
AV		 331}
332
333static inline srb_t *
334qla2x00_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
1da177e4 354static int
f4f051eb 355qla2x00_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
1da177e4 356{
f4f051eb 357 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
bdf79621 358 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
19a7b4ae 359 struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
f4f051eb
AV		 360 srb_t *sp;
361 int rval;
1da177e4 362
19a7b4ae
JSEC		 363 rval = fc_remote_port_chkready(rport);
364 if (rval) {
365 cmd->result = rval;
f4f051eb
AV		 366 goto qc_fail_command;
367 }
1da177e4 368
f4f051eb
AV		 369 if (atomic_read(&fcport->state) != FCS_ONLINE) {
370 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
371 atomic_read(&ha->loop_state) == LOOP_DEAD) {
372 cmd->result = DID_NO_CONNECT << 16;
373 goto qc_fail_command;
374 }
375 goto qc_host_busy;
376 }
1da177e4
LT		 377
378 spin_unlock_irq(ha->host->host_lock);
379
fca29703
AV		 380 sp = qla2x00_get_new_sp(ha, fcport, cmd, done);
381 if (!sp)
f4f051eb 382 goto qc_host_busy_lock;
1da177e4 383
f4f051eb
AV		 384 rval = qla2x00_start_scsi(sp);
385 if (rval != QLA_SUCCESS)
386 goto qc_host_busy_free_sp;
1da177e4 387
f4f051eb 388 spin_lock_irq(ha->host->host_lock);
1da177e4 389
f4f051eb 390 return 0;
1da177e4 391
f4f051eb
AV		 392qc_host_busy_free_sp:
393 qla2x00_sp_free_dma(ha, sp);
f4f051eb 394 mempool_free(sp, ha->srb_mempool);
1da177e4 395
f4f051eb
AV		 396qc_host_busy_lock:
397 spin_lock_irq(ha->host->host_lock);
1da177e4 398
f4f051eb
AV		 399qc_host_busy:
400 return SCSI_MLQUEUE_HOST_BUSY;
1da177e4 401
f4f051eb
AV		 402qc_fail_command:
403 done(cmd);
1da177e4 404
f4f051eb 405 return 0;
1da177e4
LT		 406}
407
fca29703
AV		 408
409static int
410qla24xx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
411{
412 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
413 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
19a7b4ae 414 struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
fca29703
AV		 415 srb_t *sp;
416 int rval;
417
19a7b4ae
JSEC		 418 rval = fc_remote_port_chkready(rport);
419 if (rval) {
420 cmd->result = rval;
fca29703
AV		 421 goto qc24_fail_command;
422 }
423
424 if (atomic_read(&fcport->state) != FCS_ONLINE) {
425 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
426 atomic_read(&ha->loop_state) == LOOP_DEAD) {
427 cmd->result = DID_NO_CONNECT << 16;
428 goto qc24_fail_command;
429 }
430 goto qc24_host_busy;
431 }
432
433 spin_unlock_irq(ha->host->host_lock);
434
435 sp = qla2x00_get_new_sp(ha, fcport, cmd, done);
436 if (!sp)
437 goto qc24_host_busy_lock;
438
439 rval = qla24xx_start_scsi(sp);
440 if (rval != QLA_SUCCESS)
441 goto qc24_host_busy_free_sp;
442
443 spin_lock_irq(ha->host->host_lock);
444
445 return 0;
446
447qc24_host_busy_free_sp:
448 qla2x00_sp_free_dma(ha, sp);
449 mempool_free(sp, ha->srb_mempool);
450
451qc24_host_busy_lock:
452 spin_lock_irq(ha->host->host_lock);
453
454qc24_host_busy:
455 return SCSI_MLQUEUE_HOST_BUSY;
456
457qc24_fail_command:
458 done(cmd);
459
460 return 0;
461}
462
463
1da177e4
LT		 464/*
465 * qla2x00_eh_wait_on_command
466 * Waits for the command to be returned by the Firmware for some
467 * max time.
468 *
469 * Input:
470 * ha = actual ha whose done queue will contain the command
471 * returned by firmware.
472 * cmd = Scsi Command to wait on.
473 * flag = Abort/Reset(Bus or Device Reset)
474 *
475 * Return:
476 * Not Found : 0
477 * Found : 1
478 */
479static int
480qla2x00_eh_wait_on_command(scsi_qla_host_t *ha, struct scsi_cmnd *cmd)
481{
fe74c71f
AV		 482#define ABORT_POLLING_PERIOD 1000
483#define ABORT_WAIT_ITER ((10 * 1000) / (ABORT_POLLING_PERIOD))
f4f051eb
AV		 484 unsigned long wait_iter = ABORT_WAIT_ITER;
485 int ret = QLA_SUCCESS;
1da177e4 486
f4f051eb 487 while (CMD_SP(cmd)) {
fe74c71f 488 msleep(ABORT_POLLING_PERIOD);
1da177e4 489
f4f051eb
AV		 490 if (--wait_iter)
491 break;
492 }
493 if (CMD_SP(cmd))
494 ret = QLA_FUNCTION_FAILED;
1da177e4 495
f4f051eb 496 return ret;
1da177e4
LT		 497}
498
499/*
500 * qla2x00_wait_for_hba_online
fa2a1ce5 501 * Wait till the HBA is online after going through
1da177e4
LT		 502 * <= MAX_RETRIES_OF_ISP_ABORT or
503 * finally HBA is disabled ie marked offline
504 *
505 * Input:
506 * ha - pointer to host adapter structure
fa2a1ce5
AV		 507 *
508 * Note:
1da177e4
LT		 509 * Does context switching-Release SPIN_LOCK
510 * (if any) before calling this routine.
511 *
512 * Return:
513 * Success (Adapter is online) : 0
514 * Failed (Adapter is offline/disabled) : 1
515 */
fa2a1ce5 516static int
1da177e4
LT		 517qla2x00_wait_for_hba_online(scsi_qla_host_t *ha)
518{
fca29703
AV		 519 int return_status;
520 unsigned long wait_online;
1da177e4 521
fa2a1ce5 522 wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
1da177e4
LT		 523 while (((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) ||
524 test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags) ||
525 test_bit(ISP_ABORT_RETRY, &ha->dpc_flags) ||
526 ha->dpc_active) && time_before(jiffies, wait_online)) {
527
528 msleep(1000);
529 }
fa2a1ce5
AV		 530 if (ha->flags.online)
531 return_status = QLA_SUCCESS;
1da177e4
LT		 532 else
533 return_status = QLA_FUNCTION_FAILED;
534
535 DEBUG2(printk("%s return_status=%d\n",__func__,return_status));
536
537 return (return_status);
538}
539
540/*
541 * qla2x00_wait_for_loop_ready
542 * Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
fa2a1ce5 543 * to be in LOOP_READY state.
1da177e4
LT		 544 * Input:
545 * ha - pointer to host adapter structure
fa2a1ce5
AV		 546 *
547 * Note:
1da177e4
LT		 548 * Does context switching-Release SPIN_LOCK
549 * (if any) before calling this routine.
fa2a1ce5 550 *
1da177e4
LT		 551 *
552 * Return:
553 * Success (LOOP_READY) : 0
554 * Failed (LOOP_NOT_READY) : 1
555 */
fa2a1ce5 556static inline int
1da177e4
LT		 557qla2x00_wait_for_loop_ready(scsi_qla_host_t *ha)
558{
559 int return_status = QLA_SUCCESS;
560 unsigned long loop_timeout ;
561
562 /* wait for 5 min at the max for loop to be ready */
fa2a1ce5 563 loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ);
1da177e4
LT		 564
565 while ((!atomic_read(&ha->loop_down_timer) &&
566 atomic_read(&ha->loop_state) == LOOP_DOWN) ||
1da177e4
LT		 567 atomic_read(&ha->loop_state) != LOOP_READY) {
568 msleep(1000);
569 if (time_after_eq(jiffies, loop_timeout)) {
570 return_status = QLA_FUNCTION_FAILED;
571 break;
572 }
573 }
fa2a1ce5 574 return (return_status);
1da177e4
LT		 575}
576
577/**************************************************************************
578* qla2xxx_eh_abort
579*
580* Description:
581* The abort function will abort the specified command.
582*
583* Input:
584* cmd = Linux SCSI command packet to be aborted.
585*
586* Returns:
587* Either SUCCESS or FAILED.
588*
589* Note:
590**************************************************************************/
591int
592qla2xxx_eh_abort(struct scsi_cmnd *cmd)
593{
f4f051eb
AV		 594 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
595 srb_t *sp;
596 int ret, i;
597 unsigned int id, lun;
598 unsigned long serial;
18e144d3 599 unsigned long flags;
1da177e4 600
f4f051eb
AV		 601 if (!CMD_SP(cmd))
602 return FAILED;
1da177e4 603
f4f051eb 604 ret = FAILED;
1da177e4 605
f4f051eb
AV		 606 id = cmd->device->id;
607 lun = cmd->device->lun;
608 serial = cmd->serial_number;
1da177e4 609
f4f051eb 610 /* Check active list for command command. */
18e144d3 611 spin_lock_irqsave(&ha->hardware_lock, flags);
f4f051eb
AV		 612 for (i = 1; i < MAX_OUTSTANDING_COMMANDS; i++) {
613 sp = ha->outstanding_cmds[i];
1da177e4 614
f4f051eb
AV		 615 if (sp == NULL)
616 continue;
1da177e4 617
f4f051eb
AV		 618 if (sp->cmd != cmd)
619 continue;
1da177e4 620
f4f051eb
AV		 621 DEBUG2(printk("%s(%ld): aborting sp %p from RISC. pid=%ld "
622 "sp->state=%x\n", __func__, ha->host_no, sp, serial,
623 sp->state));
624 DEBUG3(qla2x00_print_scsi_cmd(cmd);)
1da177e4 625
18e144d3 626 spin_unlock_irqrestore(&ha->hardware_lock, flags);
abbd8870 627 if (ha->isp_ops.abort_command(ha, sp)) {
f4f051eb
AV		 628 DEBUG2(printk("%s(%ld): abort_command "
629 "mbx failed.\n", __func__, ha->host_no));
630 } else {
631 DEBUG3(printk("%s(%ld): abort_command "
632 "mbx success.\n", __func__, ha->host_no));
633 ret = SUCCESS;
634 }
18e144d3 635 spin_lock_irqsave(&ha->hardware_lock, flags);
1da177e4 636
f4f051eb
AV		 637 break;
638 }
18e144d3 639 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1da177e4 640
f4f051eb
AV		 641 /* Wait for the command to be returned. */
642 if (ret == SUCCESS) {
f4f051eb 643 if (qla2x00_eh_wait_on_command(ha, cmd) != QLA_SUCCESS) {
fa2a1ce5 644 qla_printk(KERN_ERR, ha,
f4f051eb
AV		 645 "scsi(%ld:%d:%d): Abort handler timed out -- %lx "
646 "%x.\n", ha->host_no, id, lun, serial, ret);
647 }
1da177e4 648 }
1da177e4 649
fa2a1ce5 650 qla_printk(KERN_INFO, ha,
f4f051eb
AV		 651 "scsi(%ld:%d:%d): Abort command issued -- %lx %x.\n", ha->host_no,
652 id, lun, serial, ret);
1da177e4 653
f4f051eb
AV		 654 return ret;
655}
1da177e4 656
f4f051eb
AV		 657/**************************************************************************
658* qla2x00_eh_wait_for_pending_target_commands
659*
660* Description:
661* Waits for all the commands to come back from the specified target.
662*
663* Input:
664* ha - pointer to scsi_qla_host structure.
fa2a1ce5 665* t - target
f4f051eb
AV		 666* Returns:
667* Either SUCCESS or FAILED.
668*
669* Note:
670**************************************************************************/
671static int
672qla2x00_eh_wait_for_pending_target_commands(scsi_qla_host_t *ha, unsigned int t)
673{
674 int cnt;
675 int status;
676 srb_t *sp;
677 struct scsi_cmnd *cmd;
18e144d3 678 unsigned long flags;
1da177e4 679
f4f051eb 680 status = 0;
1da177e4
LT		 681
682 /*
f4f051eb
AV		 683 * Waiting for all commands for the designated target in the active
684 * array
1da177e4
LT		 685 */
686 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
18e144d3 687 spin_lock_irqsave(&ha->hardware_lock, flags);
1da177e4
LT		 688 sp = ha->outstanding_cmds[cnt];
689 if (sp) {
690 cmd = sp->cmd;
18e144d3 691 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1da177e4
LT		 692 if (cmd->device->id == t) {
693 if (!qla2x00_eh_wait_on_command(ha, cmd)) {
694 status = 1;
695 break;
696 }
697 }
f4f051eb 698 } else {
18e144d3 699 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1da177e4
LT		 700 }
701 }
702 return (status);
703}
704
705
706/**************************************************************************
707* qla2xxx_eh_device_reset
708*
709* Description:
710* The device reset function will reset the target and abort any
711* executing commands.
712*
713* NOTE: The use of SP is undefined within this context. Do *NOT*
fa2a1ce5 714* attempt to use this value, even if you determine it is
1da177e4
LT		 715* non-null.
716*
717* Input:
718* cmd = Linux SCSI command packet of the command that cause the
719* bus device reset.
720*
721* Returns:
722* SUCCESS/FAILURE (defined as macro in scsi.h).
723*
724**************************************************************************/
725int
726qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
727{
f4f051eb 728 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
bdf79621 729 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
f4f051eb
AV		 730 srb_t *sp;
731 int ret;
732 unsigned int id, lun;
733 unsigned long serial;
1da177e4 734
f4f051eb 735 ret = FAILED;
1da177e4 736
f4f051eb
AV		 737 id = cmd->device->id;
738 lun = cmd->device->lun;
739 serial = cmd->serial_number;
1da177e4 740
f4f051eb 741 sp = (srb_t *) CMD_SP(cmd);
bdf79621 742 if (!sp || !fcport)
f4f051eb 743 return ret;
1da177e4
LT		 744
745 qla_printk(KERN_INFO, ha,
f4f051eb 746 "scsi(%ld:%d:%d): DEVICE RESET ISSUED.\n", ha->host_no, id, lun);
1da177e4 747
94d0e7b8 748 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
1da177e4 749 goto eh_dev_reset_done;
1da177e4
LT		 750
751 if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
f4f051eb
AV		 752 if (qla2x00_device_reset(ha, fcport) == 0)
753 ret = SUCCESS;
1da177e4
LT		 754
755#if defined(LOGOUT_AFTER_DEVICE_RESET)
f4f051eb
AV		 756 if (ret == SUCCESS) {
757 if (fcport->flags & FC_FABRIC_DEVICE) {
abbd8870 758 ha->isp_ops.fabric_logout(ha, fcport->loop_id);
d97994dc 759 qla2x00_mark_device_lost(ha, fcport, 0, 0);
1da177e4
LT		 760 }
761 }
762#endif
763 } else {
764 DEBUG2(printk(KERN_INFO
765 "%s failed: loop not ready\n",__func__);)
766 }
767
f4f051eb 768 if (ret == FAILED) {
1da177e4
LT		 769 DEBUG3(printk("%s(%ld): device reset failed\n",
770 __func__, ha->host_no));
771 qla_printk(KERN_INFO, ha, "%s: device reset failed\n",
772 __func__);
773
774 goto eh_dev_reset_done;
775 }
776
9a41a62b
AV		 777 /* Flush outstanding commands. */
778 if (qla2x00_eh_wait_for_pending_target_commands(ha, id))
779 ret = FAILED;
780 if (ret == FAILED) {
781 DEBUG3(printk("%s(%ld): failed while waiting for commands\n",
782 __func__, ha->host_no));
783 qla_printk(KERN_INFO, ha,
784 "%s: failed while waiting for commands\n", __func__);
785 } else
786 qla_printk(KERN_INFO, ha,
787 "scsi(%ld:%d:%d): DEVICE RESET SUCCEEDED.\n", ha->host_no,
788 id, lun);
28f22b03 789 eh_dev_reset_done:
f4f051eb 790 return ret;
1da177e4
LT		 791}
792
793/**************************************************************************
794* qla2x00_eh_wait_for_pending_commands
795*
796* Description:
797* Waits for all the commands to come back from the specified host.
798*
799* Input:
800* ha - pointer to scsi_qla_host structure.
801*
802* Returns:
803* 1 : SUCCESS
804* 0 : FAILED
805*
806* Note:
807**************************************************************************/
808static int
809qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *ha)
810{
811 int cnt;
812 int status;
813 srb_t *sp;
814 struct scsi_cmnd *cmd;
18e144d3 815 unsigned long flags;
1da177e4
LT		 816
817 status = 1;
818
819 /*
820 * Waiting for all commands for the designated target in the active
821 * array
822 */
823 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
18e144d3 824 spin_lock_irqsave(&ha->hardware_lock, flags);
1da177e4
LT		 825 sp = ha->outstanding_cmds[cnt];
826 if (sp) {
827 cmd = sp->cmd;
18e144d3 828 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1da177e4
LT		 829 status = qla2x00_eh_wait_on_command(ha, cmd);
830 if (status == 0)
831 break;
832 }
833 else {
18e144d3 834 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1da177e4
LT		 835 }
836 }
837 return (status);
838}
839
840
841/**************************************************************************
842* qla2xxx_eh_bus_reset
843*
844* Description:
845* The bus reset function will reset the bus and abort any executing
846* commands.
847*
848* Input:
849* cmd = Linux SCSI command packet of the command that cause the
850* bus reset.
851*
852* Returns:
853* SUCCESS/FAILURE (defined as macro in scsi.h).
854*
855**************************************************************************/
856int
857qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
858{
f4f051eb 859 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
bdf79621 860 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
1da177e4 861 srb_t *sp;
f4f051eb
AV		 862 int ret;
863 unsigned int id, lun;
864 unsigned long serial;
865
866 ret = FAILED;
867
868 id = cmd->device->id;
869 lun = cmd->device->lun;
870 serial = cmd->serial_number;
1da177e4 871
1da177e4 872 sp = (srb_t *) CMD_SP(cmd);
bdf79621 873 if (!sp || !fcport)
f4f051eb 874 return ret;
1da177e4
LT		 875
876 qla_printk(KERN_INFO, ha,
f4f051eb 877 "scsi(%ld:%d:%d): LOOP RESET ISSUED.\n", ha->host_no, id, lun);
1da177e4 878
1da177e4
LT		 879 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS) {
880 DEBUG2(printk("%s failed:board disabled\n",__func__));
f4f051eb 881 goto eh_bus_reset_done;
1da177e4
LT		 882 }
883
884 if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
f4f051eb
AV		 885 if (qla2x00_loop_reset(ha) == QLA_SUCCESS)
886 ret = SUCCESS;
1da177e4 887 }
f4f051eb
AV		 888 if (ret == FAILED)
889 goto eh_bus_reset_done;
1da177e4 890
9a41a62b
AV		 891 /* Flush outstanding commands. */
892 if (!qla2x00_eh_wait_for_pending_commands(ha))
893 ret = FAILED;
1da177e4 894
f4f051eb 895eh_bus_reset_done:
1da177e4 896 qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
f4f051eb 897 (ret == FAILED) ? "failed" : "succeded");
1da177e4 898
f4f051eb 899 return ret;
1da177e4
LT		 900}
901
902/**************************************************************************
903* qla2xxx_eh_host_reset
904*
905* Description:
906* The reset function will reset the Adapter.
907*
908* Input:
909* cmd = Linux SCSI command packet of the command that cause the
910* adapter reset.
911*
912* Returns:
913* Either SUCCESS or FAILED.
914*
915* Note:
916**************************************************************************/
917int
918qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
919{
f4f051eb 920 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
bdf79621 921 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
f4f051eb
AV		 922 srb_t *sp;
923 int ret;
924 unsigned int id, lun;
925 unsigned long serial;
1da177e4 926
f4f051eb
AV		 927 ret = FAILED;
928
929 id = cmd->device->id;
930 lun = cmd->device->lun;
931 serial = cmd->serial_number;
932
933 sp = (srb_t *) CMD_SP(cmd);
bdf79621 934 if (!sp || !fcport)
f4f051eb 935 return ret;
1da177e4 936
1da177e4 937 qla_printk(KERN_INFO, ha,
f4f051eb 938 "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", ha->host_no, id, lun);
1da177e4 939
1da177e4 940 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
f4f051eb 941 goto eh_host_reset_lock;
1da177e4
LT		 942
943 /*
944 * Fixme-may be dpc thread is active and processing
fa2a1ce5 945 * loop_resync,so wait a while for it to
1da177e4
LT		 946 * be completed and then issue big hammer.Otherwise
947 * it may cause I/O failure as big hammer marks the
948 * devices as lost kicking of the port_down_timer
949 * while dpc is stuck for the mailbox to complete.
950 */
1da177e4
LT		 951 qla2x00_wait_for_loop_ready(ha);
952 set_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
953 if (qla2x00_abort_isp(ha)) {
954 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
955 /* failed. schedule dpc to try */
956 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
957
958 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
f4f051eb 959 goto eh_host_reset_lock;
fa2a1ce5 960 }
1da177e4
LT		 961 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
962
1da177e4 963 /* Waiting for our command in done_queue to be returned to OS.*/
f4f051eb
AV		 964 if (qla2x00_eh_wait_for_pending_commands(ha))
965 ret = SUCCESS;
1da177e4 966
f4f051eb 967eh_host_reset_lock:
f4f051eb
AV		 968 qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
969 (ret == FAILED) ? "failed" : "succeded");
1da177e4 970
f4f051eb
AV		 971 return ret;
972}
1da177e4
LT		 973
974/*
975* qla2x00_loop_reset
976* Issue loop reset.
977*
978* Input:
979* ha = adapter block pointer.
980*
981* Returns:
982* 0 = success
983*/
984static int
985qla2x00_loop_reset(scsi_qla_host_t *ha)
986{
987 int status = QLA_SUCCESS;
bdf79621 988 struct fc_port *fcport;
1da177e4
LT		 989
990 if (ha->flags.enable_lip_reset) {
991 status = qla2x00_lip_reset(ha);
992 }
993
994 if (status == QLA_SUCCESS && ha->flags.enable_target_reset) {
bdf79621
AV		 995 list_for_each_entry(fcport, &ha->fcports, list) {
996 if (fcport->port_type != FCT_TARGET)
1da177e4
LT		 997 continue;
998
c00c72ae 999 status = qla2x00_device_reset(ha, fcport);
bdf79621 1000 if (status != QLA_SUCCESS)
1da177e4 1001 break;
1da177e4
LT		 1002 }
1003 }
1004
1005 if (status == QLA_SUCCESS &&
fa2a1ce5 1006 ((!ha->flags.enable_target_reset &&
1da177e4
LT		 1007 !ha->flags.enable_lip_reset) ||
1008 ha->flags.enable_lip_full_login)) {
1009
1010 status = qla2x00_full_login_lip(ha);
1011 }
1012
1013 /* Issue marker command only when we are going to start the I/O */
1014 ha->marker_needed = 1;
1015
1016 if (status) {
1017 /* Empty */
1018 DEBUG2_3(printk("%s(%ld): **** FAILED ****\n",
1019 __func__,
1020 ha->host_no);)
1021 } else {
1022 /* Empty */
1023 DEBUG3(printk("%s(%ld): exiting normally.\n",
1024 __func__,
1025 ha->host_no);)
1026 }
1027
1028 return(status);
1029}
1030
1031/*
1032 * qla2x00_device_reset
1033 * Issue bus device reset message to the target.
1034 *
1035 * Input:
1036 * ha = adapter block pointer.
1037 * t = SCSI ID.
1038 * TARGET_QUEUE_LOCK must be released.
1039 * ADAPTER_STATE_LOCK must be released.
1040 *
1041 * Context:
1042 * Kernel context.
1043 */
1044static int
1045qla2x00_device_reset(scsi_qla_host_t *ha, fc_port_t *reset_fcport)
1046{
1047 /* Abort Target command will clear Reservation */
abbd8870 1048 return ha->isp_ops.abort_target(reset_fcport);
1da177e4
LT		 1049}
1050
f4f051eb
AV		 1051static int
1052qla2xxx_slave_alloc(struct scsi_device *sdev)
1da177e4 1053{
bdf79621 1054 struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1da177e4 1055
19a7b4ae 1056 if (!rport || fc_remote_port_chkready(rport))
f4f051eb 1057 return -ENXIO;
bdf79621 1058
19a7b4ae 1059 sdev->hostdata = *(fc_port_t **)rport->dd_data;
1da177e4 1060
f4f051eb
AV		 1061 return 0;
1062}
1da177e4 1063
f4f051eb
AV		 1064static int
1065qla2xxx_slave_configure(struct scsi_device *sdev)
1066{
8482e118
AV		 1067 scsi_qla_host_t *ha = to_qla_host(sdev->host);
1068 struct fc_rport *rport = starget_to_rport(sdev->sdev_target);
1069
f4f051eb
AV		 1070 if (sdev->tagged_supported)
1071 scsi_activate_tcq(sdev, 32);
1072 else
1073 scsi_deactivate_tcq(sdev, 32);
1da177e4 1074
8482e118
AV		 1075 rport->dev_loss_tmo = ha->port_down_retry_count + 5;
1076
f4f051eb
AV		 1077 return 0;
1078}
1da177e4 1079
f4f051eb
AV		 1080static void
1081qla2xxx_slave_destroy(struct scsi_device *sdev)
1082{
1083 sdev->hostdata = NULL;
1da177e4
LT		 1084}
1085
ce7e4af7
AV		 1086static int
1087qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth)
1088{
1089 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1090 return sdev->queue_depth;
1091}
1092
1093static int
1094qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1095{
1096 if (sdev->tagged_supported) {
1097 scsi_set_tag_type(sdev, tag_type);
1098 if (tag_type)
1099 scsi_activate_tcq(sdev, sdev->queue_depth);
1100 else
1101 scsi_deactivate_tcq(sdev, sdev->queue_depth);
1102 } else
1103 tag_type = 0;
1104
1105 return tag_type;
1106}
1107
1da177e4
LT		 1108/**
1109 * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1110 * @ha: HA context
1111 *
1112 * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1113 * supported addressing method.
1114 */
1115static void
1116qla2x00_config_dma_addressing(scsi_qla_host_t *ha)
1117{
7524f9b9 1118 /* Assume a 32bit DMA mask. */
1da177e4 1119 ha->flags.enable_64bit_addressing = 0;
1da177e4 1120
7524f9b9
AV		 1121 if (!dma_set_mask(&ha->pdev->dev, DMA_64BIT_MASK)) {
1122 /* Any upper-dword bits set? */
1123 if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1124 !pci_set_consistent_dma_mask(ha->pdev, DMA_64BIT_MASK)) {
1125 /* Ok, a 64bit DMA mask is applicable. */
1da177e4 1126 ha->flags.enable_64bit_addressing = 1;
abbd8870
AV		 1127 ha->isp_ops.calc_req_entries = qla2x00_calc_iocbs_64;
1128 ha->isp_ops.build_iocbs = qla2x00_build_scsi_iocbs_64;
7524f9b9 1129 return;
1da177e4 1130 }
1da177e4 1131 }
7524f9b9
AV		 1132
1133 dma_set_mask(&ha->pdev->dev, DMA_32BIT_MASK);
1134 pci_set_consistent_dma_mask(ha->pdev, DMA_32BIT_MASK);
1da177e4
LT		 1135}
1136
1137static int
1138qla2x00_iospace_config(scsi_qla_host_t *ha)
1139{
1140 unsigned long pio, pio_len, pio_flags;
1141 unsigned long mmio, mmio_len, mmio_flags;
1142
1143 /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1144 pio = pci_resource_start(ha->pdev, 0);
1145 pio_len = pci_resource_len(ha->pdev, 0);
1146 pio_flags = pci_resource_flags(ha->pdev, 0);
1147 if (pio_flags & IORESOURCE_IO) {
1148 if (pio_len < MIN_IOBASE_LEN) {
1149 qla_printk(KERN_WARNING, ha,
1150 "Invalid PCI I/O region size (%s)...\n",
1151 pci_name(ha->pdev));
1152 pio = 0;
1153 }
1154 } else {
1155 qla_printk(KERN_WARNING, ha,
1156 "region #0 not a PIO resource (%s)...\n",
1157 pci_name(ha->pdev));
1158 pio = 0;
1159 }
1160
1161 /* Use MMIO operations for all accesses. */
1162 mmio = pci_resource_start(ha->pdev, 1);
1163 mmio_len = pci_resource_len(ha->pdev, 1);
1164 mmio_flags = pci_resource_flags(ha->pdev, 1);
1165
1166 if (!(mmio_flags & IORESOURCE_MEM)) {
1167 qla_printk(KERN_ERR, ha,
1168 "region #0 not an MMIO resource (%s), aborting\n",
1169 pci_name(ha->pdev));
1170 goto iospace_error_exit;
1171 }
1172 if (mmio_len < MIN_IOBASE_LEN) {
1173 qla_printk(KERN_ERR, ha,
1174 "Invalid PCI mem region size (%s), aborting\n",
1175 pci_name(ha->pdev));
1176 goto iospace_error_exit;
1177 }
1178
1179 if (pci_request_regions(ha->pdev, ha->brd_info->drv_name)) {
1180 qla_printk(KERN_WARNING, ha,
1181 "Failed to reserve PIO/MMIO regions (%s)\n",
1182 pci_name(ha->pdev));
1183
1184 goto iospace_error_exit;
1185 }
1186
1187 ha->pio_address = pio;
1188 ha->pio_length = pio_len;
1189 ha->iobase = ioremap(mmio, MIN_IOBASE_LEN);
1190 if (!ha->iobase) {
1191 qla_printk(KERN_ERR, ha,
1192 "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
1193
1194 goto iospace_error_exit;
1195 }
1196
1197 return (0);
1198
1199iospace_error_exit:
1200 return (-ENOMEM);
1201}
1202
abbd8870
AV		 1203static void
1204qla2x00_enable_intrs(scsi_qla_host_t *ha)
1205{
1206 unsigned long flags = 0;
3d71644c 1207 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
abbd8870
AV		 1208
1209 spin_lock_irqsave(&ha->hardware_lock, flags);
1210 ha->interrupts_on = 1;
1211 /* enable risc and host interrupts */
1212 WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1213 RD_REG_WORD(&reg->ictrl);
1214 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1215
1216}
1217
1218static void
1219qla2x00_disable_intrs(scsi_qla_host_t *ha)
1220{
1221 unsigned long flags = 0;
3d71644c 1222 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
abbd8870
AV		 1223
1224 spin_lock_irqsave(&ha->hardware_lock, flags);
1225 ha->interrupts_on = 0;
1226 /* disable risc and host interrupts */
1227 WRT_REG_WORD(&reg->ictrl, 0);
1228 RD_REG_WORD(&reg->ictrl);
1229 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1230}
1231
fca29703
AV		 1232static void
1233qla24xx_enable_intrs(scsi_qla_host_t *ha)
1234{
1235 unsigned long flags = 0;
1236 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1237
1238 spin_lock_irqsave(&ha->hardware_lock, flags);
1239 ha->interrupts_on = 1;
1240 WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1241 RD_REG_DWORD(&reg->ictrl);
1242 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1243}
1244
1245static void
1246qla24xx_disable_intrs(scsi_qla_host_t *ha)
1247{
1248 unsigned long flags = 0;
1249 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1250
1251 spin_lock_irqsave(&ha->hardware_lock, flags);
1252 ha->interrupts_on = 0;
1253 WRT_REG_DWORD(&reg->ictrl, 0);
1254 RD_REG_DWORD(&reg->ictrl);
1255 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1256}
1257
1da177e4
LT		 1258/*
1259 * PCI driver interface
1260 */
1261int qla2x00_probe_one(struct pci_dev *pdev, struct qla_board_info *brd_info)
1262{
a1541d5a 1263 int ret = -ENODEV;
fca29703 1264 device_reg_t __iomem *reg;
1da177e4
LT		 1265 struct Scsi_Host *host;
1266 scsi_qla_host_t *ha;
1267 unsigned long flags = 0;
1268 unsigned long wait_switch = 0;
1269 char pci_info[20];
1270 char fw_str[30];
8482e118 1271 fc_port_t *fcport;
5433383e 1272 struct scsi_host_template *sht;
1da177e4
LT		 1273
1274 if (pci_enable_device(pdev))
a1541d5a 1275 goto probe_out;
1da177e4 1276
5433383e
AV		 1277 sht = &qla2x00_driver_template;
1278 if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
1279 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432)
1280 sht = &qla24xx_driver_template;
1281 host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
1da177e4
LT		 1282 if (host == NULL) {
1283 printk(KERN_WARNING
1284 "qla2xxx: Couldn't allocate host from scsi layer!\n");
1285 goto probe_disable_device;
1286 }
1287
1288 /* Clear our data area */
1289 ha = (scsi_qla_host_t *)host->hostdata;
1290 memset(ha, 0, sizeof(scsi_qla_host_t));
1291
1292 ha->pdev = pdev;
1293 ha->host = host;
1294 ha->host_no = host->host_no;
1295 ha->brd_info = brd_info;
1296 sprintf(ha->host_str, "%s_%ld", ha->brd_info->drv_name, ha->host_no);
1297
444d1d9b
AM		 1298 ha->dpc_pid = -1;
1299
1da177e4
LT		 1300 /* Configure PCI I/O space */
1301 ret = qla2x00_iospace_config(ha);
a1541d5a
AV		 1302 if (ret)
1303 goto probe_failed;
1da177e4 1304
1da177e4 1305 qla_printk(KERN_INFO, ha,
5433383e
AV		 1306 "Found an ISP%04X, irq %d, iobase 0x%p\n", pdev->device, pdev->irq,
1307 ha->iobase);
1da177e4
LT		 1308
1309 spin_lock_init(&ha->hardware_lock);
1310
1da177e4
LT		 1311 ha->prev_topology = 0;
1312 ha->ports = MAX_BUSES;
fca29703 1313 ha->init_cb_size = sizeof(init_cb_t);
cca5335c 1314 ha->mgmt_svr_loop_id = MANAGEMENT_SERVER;
04414013 1315 ha->link_data_rate = LDR_UNKNOWN;
1da177e4 1316
abbd8870
AV		 1317 /* Assign ISP specific operations. */
1318 ha->isp_ops.pci_config = qla2100_pci_config;
1319 ha->isp_ops.reset_chip = qla2x00_reset_chip;
1320 ha->isp_ops.chip_diag = qla2x00_chip_diag;
1321 ha->isp_ops.config_rings = qla2x00_config_rings;
1322 ha->isp_ops.reset_adapter = qla2x00_reset_adapter;
1323 ha->isp_ops.nvram_config = qla2x00_nvram_config;
1324 ha->isp_ops.update_fw_options = qla2x00_update_fw_options;
0107109e 1325 ha->isp_ops.load_risc = qla2x00_load_risc;
abbd8870
AV		 1326 ha->isp_ops.pci_info_str = qla2x00_pci_info_str;
1327 ha->isp_ops.fw_version_str = qla2x00_fw_version_str;
1328 ha->isp_ops.intr_handler = qla2100_intr_handler;
1329 ha->isp_ops.enable_intrs = qla2x00_enable_intrs;
1330 ha->isp_ops.disable_intrs = qla2x00_disable_intrs;
1331 ha->isp_ops.abort_command = qla2x00_abort_command;
1332 ha->isp_ops.abort_target = qla2x00_abort_target;
1333 ha->isp_ops.fabric_login = qla2x00_login_fabric;
1334 ha->isp_ops.fabric_logout = qla2x00_fabric_logout;
1335 ha->isp_ops.calc_req_entries = qla2x00_calc_iocbs_32;
1336 ha->isp_ops.build_iocbs = qla2x00_build_scsi_iocbs_32;
1337 ha->isp_ops.prep_ms_iocb = qla2x00_prep_ms_iocb;
cca5335c 1338 ha->isp_ops.prep_ms_fdmi_iocb = qla2x00_prep_ms_fdmi_iocb;
459c5378
AV		 1339 ha->isp_ops.read_nvram = qla2x00_read_nvram_data;
1340 ha->isp_ops.write_nvram = qla2x00_write_nvram_data;
abbd8870
AV		 1341 ha->isp_ops.fw_dump = qla2100_fw_dump;
1342 ha->isp_ops.ascii_fw_dump = qla2100_ascii_fw_dump;
1da177e4 1343 if (IS_QLA2100(ha)) {
354d6b21 1344 host->max_id = MAX_TARGETS_2100;
1da177e4
LT		 1345 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
1346 ha->request_q_length = REQUEST_ENTRY_CNT_2100;
1347 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1348 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1349 host->sg_tablesize = 32;
abbd8870 1350 ha->gid_list_info_size = 4;
1da177e4 1351 } else if (IS_QLA2200(ha)) {
354d6b21 1352 host->max_id = MAX_TARGETS_2200;
1da177e4
LT		 1353 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1354 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1355 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1356 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
abbd8870 1357 ha->gid_list_info_size = 4;
fca29703 1358 } else if (IS_QLA23XX(ha)) {
354d6b21 1359 host->max_id = MAX_TARGETS_2200;
1da177e4
LT		 1360 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1361 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1362 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1363 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
abbd8870
AV		 1364 ha->isp_ops.pci_config = qla2300_pci_config;
1365 ha->isp_ops.intr_handler = qla2300_intr_handler;
1366 ha->isp_ops.fw_dump = qla2300_fw_dump;
1367 ha->isp_ops.ascii_fw_dump = qla2300_ascii_fw_dump;
f6df144c
AV		 1368 ha->isp_ops.beacon_on = qla2x00_beacon_on;
1369 ha->isp_ops.beacon_off = qla2x00_beacon_off;
1370 ha->isp_ops.beacon_blink = qla2x00_beacon_blink;
abbd8870 1371 ha->gid_list_info_size = 6;
fca29703
AV		 1372 } else if (IS_QLA24XX(ha) || IS_QLA25XX(ha)) {
1373 host->max_id = MAX_TARGETS_2200;
1374 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1375 ha->request_q_length = REQUEST_ENTRY_CNT_24XX;
1376 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1377 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1378 ha->init_cb_size = sizeof(struct init_cb_24xx);
cca5335c 1379 ha->mgmt_svr_loop_id = 10;
fca29703
AV		 1380 ha->isp_ops.pci_config = qla24xx_pci_config;
1381 ha->isp_ops.reset_chip = qla24xx_reset_chip;
1382 ha->isp_ops.chip_diag = qla24xx_chip_diag;
1383 ha->isp_ops.config_rings = qla24xx_config_rings;
1384 ha->isp_ops.reset_adapter = qla24xx_reset_adapter;
1385 ha->isp_ops.nvram_config = qla24xx_nvram_config;
1386 ha->isp_ops.update_fw_options = qla24xx_update_fw_options;
5433383e 1387 ha->isp_ops.load_risc = qla24xx_load_risc;
331e3476
AV		 1388#if defined(CONFIG_SCSI_QLA2XXX_EMBEDDED_FIRMWARE)
1389 if (ql2xfwloadflash)
1390 ha->isp_ops.load_risc = qla24xx_load_risc_flash;
5433383e 1391#endif
fca29703
AV		 1392 ha->isp_ops.pci_info_str = qla24xx_pci_info_str;
1393 ha->isp_ops.fw_version_str = qla24xx_fw_version_str;
1394 ha->isp_ops.intr_handler = qla24xx_intr_handler;
1395 ha->isp_ops.enable_intrs = qla24xx_enable_intrs;
1396 ha->isp_ops.disable_intrs = qla24xx_disable_intrs;
1397 ha->isp_ops.abort_command = qla24xx_abort_command;
1398 ha->isp_ops.abort_target = qla24xx_abort_target;
1399 ha->isp_ops.fabric_login = qla24xx_login_fabric;
1400 ha->isp_ops.fabric_logout = qla24xx_fabric_logout;
1401 ha->isp_ops.prep_ms_iocb = qla24xx_prep_ms_iocb;
cca5335c 1402 ha->isp_ops.prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb;
fca29703
AV		 1403 ha->isp_ops.read_nvram = qla24xx_read_nvram_data;
1404 ha->isp_ops.write_nvram = qla24xx_write_nvram_data;
1405 ha->isp_ops.fw_dump = qla24xx_fw_dump;
1406 ha->isp_ops.ascii_fw_dump = qla24xx_ascii_fw_dump;
f6df144c
AV		 1407 ha->isp_ops.beacon_on = qla24xx_beacon_on;
1408 ha->isp_ops.beacon_off = qla24xx_beacon_off;
1409 ha->isp_ops.beacon_blink = qla24xx_beacon_blink;
fca29703 1410 ha->gid_list_info_size = 8;
1da177e4
LT		 1411 }
1412 host->can_queue = ha->request_q_length + 128;
1413
1414 /* load the F/W, read paramaters, and init the H/W */
1415 ha->instance = num_hosts;
1416
1417 init_MUTEX(&ha->mbx_cmd_sem);
1418 init_MUTEX_LOCKED(&ha->mbx_intr_sem);
1419
1420 INIT_LIST_HEAD(&ha->list);
1421 INIT_LIST_HEAD(&ha->fcports);
1422 INIT_LIST_HEAD(&ha->rscn_fcports);
1da177e4
LT		 1423
1424 /*
1425 * These locks are used to prevent more than one CPU
1426 * from modifying the queue at the same time. The
1427 * higher level "host_lock" will reduce most
1428 * contention for these locks.
1429 */
1430 spin_lock_init(&ha->mbx_reg_lock);
1da177e4 1431
1da177e4
LT		 1432 init_completion(&ha->dpc_inited);
1433 init_completion(&ha->dpc_exited);
1434
1435 qla2x00_config_dma_addressing(ha);
1436 if (qla2x00_mem_alloc(ha)) {
1437 qla_printk(KERN_WARNING, ha,
1438 "[ERROR] Failed to allocate memory for adapter\n");
1439
a1541d5a
AV		 1440 ret = -ENOMEM;
1441 goto probe_failed;
1da177e4
LT		 1442 }
1443
1444 if (qla2x00_initialize_adapter(ha) &&
1445 !(ha->device_flags & DFLG_NO_CABLE)) {
1446
1447 qla_printk(KERN_WARNING, ha,
1448 "Failed to initialize adapter\n");
1449
1450 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
1451 "Adapter flags %x.\n",
1452 ha->host_no, ha->device_flags));
1453
a1541d5a 1454 ret = -ENODEV;
1da177e4
LT		 1455 goto probe_failed;
1456 }
1457
1458 /*
1459 * Startup the kernel thread for this host adapter
1460 */
1461 ha->dpc_should_die = 0;
1462 ha->dpc_pid = kernel_thread(qla2x00_do_dpc, ha, 0);
1463 if (ha->dpc_pid < 0) {
1464 qla_printk(KERN_WARNING, ha,
1465 "Unable to start DPC thread!\n");
1466
a1541d5a 1467 ret = -ENODEV;
1da177e4
LT		 1468 goto probe_failed;
1469 }
1470 wait_for_completion(&ha->dpc_inited);
1471
a1541d5a
AV		 1472 host->this_id = 255;
1473 host->cmd_per_lun = 3;
1474 host->unique_id = ha->instance;
1475 host->max_cmd_len = MAX_CMDSZ;
1476 host->max_channel = ha->ports - 1;
1477 host->max_lun = MAX_LUNS;
1478 host->transportt = qla2xxx_transport_template;
1479
fca29703 1480 ret = request_irq(pdev->irq, ha->isp_ops.intr_handler,
abbd8870 1481 SA_INTERRUPT|SA_SHIRQ, ha->brd_info->drv_name, ha);
a1541d5a 1482 if (ret) {
1da177e4
LT		 1483 qla_printk(KERN_WARNING, ha,
1484 "Failed to reserve interrupt %d already in use.\n",
fca29703 1485 pdev->irq);
1da177e4
LT		 1486 goto probe_failed;
1487 }
fca29703 1488 host->irq = pdev->irq;
1da177e4
LT		 1489
1490 /* Initialized the timer */
1491 qla2x00_start_timer(ha, qla2x00_timer, WATCH_INTERVAL);
1492
1493 DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
1494 ha->host_no, ha));
1495
abbd8870 1496 ha->isp_ops.disable_intrs(ha);
1da177e4 1497
1da177e4 1498 spin_lock_irqsave(&ha->hardware_lock, flags);
fca29703
AV		 1499 reg = ha->iobase;
1500 if (IS_QLA24XX(ha) || IS_QLA25XX(ha)) {
1501 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_HOST_INT);
1502 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_RISC_INT);
1503 } else {
1504 WRT_REG_WORD(&reg->isp.semaphore, 0);
1505 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_RISC_INT);
1506 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_HOST_INT);
1507
1508 /* Enable proper parity */
1509 if (!IS_QLA2100(ha) && !IS_QLA2200(ha)) {
1510 if (IS_QLA2300(ha))
1511 /* SRAM parity */
1512 WRT_REG_WORD(&reg->isp.hccr,
1513 (HCCR_ENABLE_PARITY + 0x1));
1514 else
1515 /* SRAM, Instruction RAM and GP RAM parity */
1516 WRT_REG_WORD(&reg->isp.hccr,
1517 (HCCR_ENABLE_PARITY + 0x7));
1518 }
1da177e4
LT		 1519 }
1520 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1521
abbd8870 1522 ha->isp_ops.enable_intrs(ha);
1da177e4
LT		 1523
1524 /* v2.19.5b6 */
1525 /*
1526 * Wait around max loop_reset_delay secs for the devices to come
1527 * on-line. We don't want Linux scanning before we are ready.
1528 *
1529 */
1530 for (wait_switch = jiffies + (ha->loop_reset_delay * HZ);
1531 time_before(jiffies,wait_switch) &&
1532 !(ha->device_flags & (DFLG_NO_CABLE | DFLG_FABRIC_DEVICES))
1533 && (ha->device_flags & SWITCH_FOUND) ;) {
1534
1535 qla2x00_check_fabric_devices(ha);
1536
1537 msleep(10);
1538 }
1539
a1541d5a 1540 pci_set_drvdata(pdev, ha);
1da177e4
LT		 1541 ha->flags.init_done = 1;
1542 num_hosts++;
1543
a1541d5a
AV		 1544 ret = scsi_add_host(host, &pdev->dev);
1545 if (ret)
1546 goto probe_failed;
1547
1548 qla2x00_alloc_sysfs_attr(ha);
1549
1550 qla2x00_init_host_attr(ha);
1551
1da177e4
LT		 1552 qla_printk(KERN_INFO, ha, "\n"
1553 " QLogic Fibre Channel HBA Driver: %s\n"
1554 " QLogic %s - %s\n"
5433383e
AV		 1555 " ISP%04X: %s @ %s hdma%c, host#=%ld, fw=%s\n",
1556 qla2x00_version_str, ha->model_number,
1557 ha->model_desc ? ha->model_desc: "", pdev->device,
1558 ha->isp_ops.pci_info_str(ha, pci_info), pci_name(pdev),
1559 ha->flags.enable_64bit_addressing ? '+': '-', ha->host_no,
1560 ha->isp_ops.fw_version_str(ha, fw_str));
1da177e4 1561
8482e118
AV		 1562 /* Go with fc_rport registration. */
1563 list_for_each_entry(fcport, &ha->fcports, list)
1564 qla2x00_reg_remote_port(ha, fcport);
1da177e4
LT		 1565
1566 return 0;
1567
1568probe_failed:
1569 qla2x00_free_device(ha);
1570
1571 scsi_host_put(host);
1572
1573probe_disable_device:
1574 pci_disable_device(pdev);
1575
a1541d5a
AV		 1576probe_out:
1577 return ret;
1da177e4
LT		 1578}
1579EXPORT_SYMBOL_GPL(qla2x00_probe_one);
1580
1581void qla2x00_remove_one(struct pci_dev *pdev)
1582{
1583 scsi_qla_host_t *ha;
1584
1585 ha = pci_get_drvdata(pdev);
1586
8482e118 1587 qla2x00_free_sysfs_attr(ha);
1da177e4 1588
bdf79621
AV		 1589 fc_remove_host(ha->host);
1590
1da177e4
LT		 1591 scsi_remove_host(ha->host);
1592
1593 qla2x00_free_device(ha);
1594
1595 scsi_host_put(ha->host);
1596
1597 pci_set_drvdata(pdev, NULL);
1598}
1599EXPORT_SYMBOL_GPL(qla2x00_remove_one);
1600
1601static void
1602qla2x00_free_device(scsi_qla_host_t *ha)
1603{
1604 int ret;
1605
1606 /* Abort any outstanding IO descriptors. */
1607 if (!IS_QLA2100(ha) && !IS_QLA2200(ha))
1608 qla2x00_cancel_io_descriptors(ha);
1609
1da177e4
LT		 1610 /* Disable timer */
1611 if (ha->timer_active)
1612 qla2x00_stop_timer(ha);
1613
1614 /* Kill the kernel thread for this host */
1615 if (ha->dpc_pid >= 0) {
1616 ha->dpc_should_die = 1;
1617 wmb();
1618 ret = kill_proc(ha->dpc_pid, SIGHUP, 1);
1619 if (ret) {
1620 qla_printk(KERN_ERR, ha,
1621 "Unable to signal DPC thread -- (%d)\n", ret);
1622
1623 /* TODO: SOMETHING MORE??? */
1624 } else {
1625 wait_for_completion(&ha->dpc_exited);
1626 }
1627 }
1628
f6ef3b18
AV		 1629 /* Stop currently executing firmware. */
1630 qla2x00_stop_firmware(ha);
1da177e4 1631
f6ef3b18
AV		 1632 /* turn-off interrupts on the card */
1633 if (ha->interrupts_on)
1634 ha->isp_ops.disable_intrs(ha);
1635
1636 qla2x00_mem_free(ha);
1da177e4
LT		 1637
1638 ha->flags.online = 0;
1639
1640 /* Detach interrupts */
1641 if (ha->pdev->irq)
1642 free_irq(ha->pdev->irq, ha);
1643
1644 /* release io space registers */
1645 if (ha->iobase)
1646 iounmap(ha->iobase);
1647 pci_release_regions(ha->pdev);
1648
1649 pci_disable_device(ha->pdev);
1650}
1651
d97994dc
AV		 1652static inline void
1653qla2x00_schedule_rport_del(struct scsi_qla_host *ha, fc_port_t *fcport,
1654 int defer)
1655{
1656 unsigned long flags;
1657 struct fc_rport *rport;
1658
1659 if (!fcport->rport)
1660 return;
1661
1662 rport = fcport->rport;
1663 if (defer) {
1664 spin_lock_irqsave(&fcport->rport_lock, flags);
1665 fcport->drport = rport;
1666 fcport->rport = NULL;
1667 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1668 set_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags);
1669 } else {
1670 spin_lock_irqsave(&fcport->rport_lock, flags);
1671 fcport->rport = NULL;
1672 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1673 fc_remote_port_delete(rport);
1674 }
1675}
1676
1da177e4
LT		 1677/*
1678 * qla2x00_mark_device_lost Updates fcport state when device goes offline.
1679 *
1680 * Input: ha = adapter block pointer. fcport = port structure pointer.
1681 *
1682 * Return: None.
1683 *
1684 * Context:
1685 */
1686void qla2x00_mark_device_lost(scsi_qla_host_t *ha, fc_port_t *fcport,
d97994dc 1687 int do_login, int defer)
1da177e4 1688{
d97994dc
AV		 1689 if (atomic_read(&fcport->state) == FCS_ONLINE)
1690 qla2x00_schedule_rport_del(ha, fcport, defer);
19a7b4ae 1691
fa2a1ce5 1692 /*
1da177e4
LT		 1693 * We may need to retry the login, so don't change the state of the
1694 * port but do the retries.
1695 */
1696 if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
1697 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1698
1699 if (!do_login)
1700 return;
1701
1702 if (fcport->login_retry == 0) {
1703 fcport->login_retry = ha->login_retry_count;
1704 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
1705
1706 DEBUG(printk("scsi(%ld): Port login retry: "
1707 "%02x%02x%02x%02x%02x%02x%02x%02x, "
1708 "id = 0x%04x retry cnt=%d\n",
1709 ha->host_no,
1710 fcport->port_name[0],
1711 fcport->port_name[1],
1712 fcport->port_name[2],
1713 fcport->port_name[3],
1714 fcport->port_name[4],
1715 fcport->port_name[5],
1716 fcport->port_name[6],
1717 fcport->port_name[7],
1718 fcport->loop_id,
1719 fcport->login_retry));
1720 }
1721}
1722
1723/*
1724 * qla2x00_mark_all_devices_lost
1725 * Updates fcport state when device goes offline.
1726 *
1727 * Input:
1728 * ha = adapter block pointer.
1729 * fcport = port structure pointer.
1730 *
1731 * Return:
1732 * None.
1733 *
1734 * Context:
1735 */
1736void
d97994dc 1737qla2x00_mark_all_devices_lost(scsi_qla_host_t *ha, int defer)
1da177e4
LT		 1738{
1739 fc_port_t *fcport;
1740
1741 list_for_each_entry(fcport, &ha->fcports, list) {
1742 if (fcport->port_type != FCT_TARGET)
1743 continue;
1744
1745 /*
1746 * No point in marking the device as lost, if the device is
1747 * already DEAD.
1748 */
1749 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
1750 continue;
d97994dc
AV		 1751 if (atomic_read(&fcport->state) == FCS_ONLINE)
1752 qla2x00_schedule_rport_del(ha, fcport, defer);
1da177e4
LT		 1753 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1754 }
d97994dc
AV		 1755
1756 if (defer && ha->dpc_wait && !ha->dpc_active)
1757 up(ha->dpc_wait);
1da177e4
LT		 1758}
1759
1760/*
1761* qla2x00_mem_alloc
1762* Allocates adapter memory.
1763*
1764* Returns:
1765* 0 = success.
1766* 1 = failure.
1767*/
1768static uint8_t
1769qla2x00_mem_alloc(scsi_qla_host_t *ha)
1770{
1771 char name[16];
1772 uint8_t status = 1;
1773 int retry= 10;
1774
1775 do {
1776 /*
1777 * This will loop only once if everything goes well, else some
1778 * number of retries will be performed to get around a kernel
1779 * bug where available mem is not allocated until after a
1780 * little delay and a retry.
1781 */
1782 ha->request_ring = dma_alloc_coherent(&ha->pdev->dev,
1783 (ha->request_q_length + 1) * sizeof(request_t),
1784 &ha->request_dma, GFP_KERNEL);
1785 if (ha->request_ring == NULL) {
1786 qla_printk(KERN_WARNING, ha,
1787 "Memory Allocation failed - request_ring\n");
1788
1789 qla2x00_mem_free(ha);
1790 msleep(100);
1791
1792 continue;
1793 }
1794
1795 ha->response_ring = dma_alloc_coherent(&ha->pdev->dev,
1796 (ha->response_q_length + 1) * sizeof(response_t),
1797 &ha->response_dma, GFP_KERNEL);
1798 if (ha->response_ring == NULL) {
1799 qla_printk(KERN_WARNING, ha,
1800 "Memory Allocation failed - response_ring\n");
1801
1802 qla2x00_mem_free(ha);
1803 msleep(100);
1804
1805 continue;
1806 }
1807
1808 ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
1809 &ha->gid_list_dma, GFP_KERNEL);
1810 if (ha->gid_list == NULL) {
1811 qla_printk(KERN_WARNING, ha,
1812 "Memory Allocation failed - gid_list\n");
1813
1814 qla2x00_mem_free(ha);
1815 msleep(100);
1816
1817 continue;
1818 }
1819
1820 ha->rlc_rsp = dma_alloc_coherent(&ha->pdev->dev,
1821 sizeof(rpt_lun_cmd_rsp_t), &ha->rlc_rsp_dma, GFP_KERNEL);
1822 if (ha->rlc_rsp == NULL) {
1823 qla_printk(KERN_WARNING, ha,
1824 "Memory Allocation failed - rlc");
1825
1826 qla2x00_mem_free(ha);
1827 msleep(100);
1828
1829 continue;
1830 }
1831
1832 snprintf(name, sizeof(name), "qla2xxx_%ld", ha->host_no);
1833 ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
1834 DMA_POOL_SIZE, 8, 0);
1835 if (ha->s_dma_pool == NULL) {
1836 qla_printk(KERN_WARNING, ha,
1837 "Memory Allocation failed - s_dma_pool\n");
1838
1839 qla2x00_mem_free(ha);
1840 msleep(100);
1841
1842 continue;
1843 }
1844
1845 /* get consistent memory allocated for init control block */
1846 ha->init_cb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
1847 &ha->init_cb_dma);
1848 if (ha->init_cb == NULL) {
1849 qla_printk(KERN_WARNING, ha,
1850 "Memory Allocation failed - init_cb\n");
1851
1852 qla2x00_mem_free(ha);
1853 msleep(100);
1854
1855 continue;
1856 }
fca29703 1857 memset(ha->init_cb, 0, ha->init_cb_size);
1da177e4
LT		 1858
1859 /* Get consistent memory allocated for Get Port Database cmd */
1860 ha->iodesc_pd = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
1861 &ha->iodesc_pd_dma);
1862 if (ha->iodesc_pd == NULL) {
1863 /* error */
1864 qla_printk(KERN_WARNING, ha,
1865 "Memory Allocation failed - iodesc_pd\n");
1866
1867 qla2x00_mem_free(ha);
1868 msleep(100);
1869
1870 continue;
1871 }
1872 memset(ha->iodesc_pd, 0, PORT_DATABASE_SIZE);
1873
1874 /* Allocate ioctl related memory. */
1875 if (qla2x00_alloc_ioctl_mem(ha)) {
1876 qla_printk(KERN_WARNING, ha,
1877 "Memory Allocation failed - ioctl_mem\n");
1878
1879 qla2x00_mem_free(ha);
1880 msleep(100);
1881
1882 continue;
1883 }
1884
1885 if (qla2x00_allocate_sp_pool(ha)) {
1886 qla_printk(KERN_WARNING, ha,
1887 "Memory Allocation failed - "
1888 "qla2x00_allocate_sp_pool()\n");
1889
1890 qla2x00_mem_free(ha);
1891 msleep(100);
1892
1893 continue;
1894 }
1895
1896 /* Allocate memory for SNS commands */
1897 if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
1898 /* Get consistent memory allocated for SNS commands */
1899 ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
1900 sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma,
1901 GFP_KERNEL);
1902 if (ha->sns_cmd == NULL) {
1903 /* error */
1904 qla_printk(KERN_WARNING, ha,
1905 "Memory Allocation failed - sns_cmd\n");
1906
1907 qla2x00_mem_free(ha);
1908 msleep(100);
1909
1910 continue;
1911 }
1912 memset(ha->sns_cmd, 0, sizeof(struct sns_cmd_pkt));
1913 } else {
1914 /* Get consistent memory allocated for MS IOCB */
1915 ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
1916 &ha->ms_iocb_dma);
1917 if (ha->ms_iocb == NULL) {
1918 /* error */
1919 qla_printk(KERN_WARNING, ha,
1920 "Memory Allocation failed - ms_iocb\n");
1921
1922 qla2x00_mem_free(ha);
1923 msleep(100);
1924
1925 continue;
1926 }
1927 memset(ha->ms_iocb, 0, sizeof(ms_iocb_entry_t));
1928
1929 /*
1930 * Get consistent memory allocated for CT SNS
1931 * commands
1932 */
1933 ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
1934 sizeof(struct ct_sns_pkt), &ha->ct_sns_dma,
1935 GFP_KERNEL);
1936 if (ha->ct_sns == NULL) {
1937 /* error */
1938 qla_printk(KERN_WARNING, ha,
1939 "Memory Allocation failed - ct_sns\n");
1940
1941 qla2x00_mem_free(ha);
1942 msleep(100);
1943
1944 continue;
1945 }
1946 memset(ha->ct_sns, 0, sizeof(struct ct_sns_pkt));
1947 }
1948
1949 /* Done all allocations without any error. */
1950 status = 0;
1951
1952 } while (retry-- && status != 0);
1953
1954 if (status) {
1955 printk(KERN_WARNING
1956 "%s(): **** FAILED ****\n", __func__);
1957 }
1958
1959 return(status);
1960}
1961
1962/*
1963* qla2x00_mem_free
1964* Frees all adapter allocated memory.
1965*
1966* Input:
1967* ha = adapter block pointer.
1968*/
1969static void
1970qla2x00_mem_free(scsi_qla_host_t *ha)
1971{
1da177e4
LT		 1972 struct list_head *fcpl, *fcptemp;
1973 fc_port_t *fcport;
fe74c71f 1974 unsigned int wtime;/* max wait time if mbx cmd is busy. */
1da177e4
LT		 1975
1976 if (ha == NULL) {
1977 /* error */
1978 DEBUG2(printk("%s(): ERROR invalid ha pointer.\n", __func__));
1979 return;
1980 }
1981
1da177e4 1982 /* Make sure all other threads are stopped. */
fe74c71f
AV		 1983 wtime = 60 * 1000;
1984 while (ha->dpc_wait && wtime)
1985 wtime = msleep_interruptible(wtime);
1da177e4
LT		 1986
1987 /* free ioctl memory */
1988 qla2x00_free_ioctl_mem(ha);
1989
1990 /* free sp pool */
1991 qla2x00_free_sp_pool(ha);
1992
1993 if (ha->sns_cmd)
1994 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
1995 ha->sns_cmd, ha->sns_cmd_dma);
1996
1997 if (ha->ct_sns)
1998 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
1999 ha->ct_sns, ha->ct_sns_dma);
2000
2001 if (ha->ms_iocb)
2002 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2003
2004 if (ha->iodesc_pd)
2005 dma_pool_free(ha->s_dma_pool, ha->iodesc_pd, ha->iodesc_pd_dma);
2006
2007 if (ha->init_cb)
2008 dma_pool_free(ha->s_dma_pool, ha->init_cb, ha->init_cb_dma);
2009
2010 if (ha->s_dma_pool)
2011 dma_pool_destroy(ha->s_dma_pool);
2012
2013 if (ha->rlc_rsp)
2014 dma_free_coherent(&ha->pdev->dev,
2015 sizeof(rpt_lun_cmd_rsp_t), ha->rlc_rsp,
2016 ha->rlc_rsp_dma);
2017
2018 if (ha->gid_list)
2019 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2020 ha->gid_list_dma);
2021
2022 if (ha->response_ring)
2023 dma_free_coherent(&ha->pdev->dev,
2024 (ha->response_q_length + 1) * sizeof(response_t),
2025 ha->response_ring, ha->response_dma);
2026
2027 if (ha->request_ring)
2028 dma_free_coherent(&ha->pdev->dev,
2029 (ha->request_q_length + 1) * sizeof(request_t),
2030 ha->request_ring, ha->request_dma);
2031
2032 ha->sns_cmd = NULL;
2033 ha->sns_cmd_dma = 0;
2034 ha->ct_sns = NULL;
2035 ha->ct_sns_dma = 0;
2036 ha->ms_iocb = NULL;
2037 ha->ms_iocb_dma = 0;
2038 ha->iodesc_pd = NULL;
2039 ha->iodesc_pd_dma = 0;
2040 ha->init_cb = NULL;
2041 ha->init_cb_dma = 0;
2042
2043 ha->s_dma_pool = NULL;
2044
2045 ha->rlc_rsp = NULL;
2046 ha->rlc_rsp_dma = 0;
2047 ha->gid_list = NULL;
2048 ha->gid_list_dma = 0;
2049
2050 ha->response_ring = NULL;
2051 ha->response_dma = 0;
2052 ha->request_ring = NULL;
2053 ha->request_dma = 0;
2054
2055 list_for_each_safe(fcpl, fcptemp, &ha->fcports) {
2056 fcport = list_entry(fcpl, fc_port_t, list);
2057
1da177e4
LT		 2058 /* fc ports */
2059 list_del_init(&fcport->list);
2060 kfree(fcport);
2061 }
2062 INIT_LIST_HEAD(&ha->fcports);
2063
2064 if (ha->fw_dump)
2065 free_pages((unsigned long)ha->fw_dump, ha->fw_dump_order);
2066
fca29703
AV		 2067 vfree(ha->fw_dump24);
2068
2069 vfree(ha->fw_dump_buffer);
1da177e4
LT		 2070
2071 ha->fw_dump = NULL;
fca29703
AV		 2072 ha->fw_dump24 = NULL;
2073 ha->fw_dumped = 0;
1da177e4
LT		 2074 ha->fw_dump_reading = 0;
2075 ha->fw_dump_buffer = NULL;
2076}
2077
2078/*
2079 * qla2x00_allocate_sp_pool
2080 * This routine is called during initialization to allocate
2081 * memory for local srb_t.
2082 *
2083 * Input:
2084 * ha = adapter block pointer.
2085 *
2086 * Context:
2087 * Kernel context.
fa2a1ce5 2088 *
1da177e4
LT		 2089 * Note: Sets the ref_count for non Null sp to one.
2090 */
2091static int
fa2a1ce5 2092qla2x00_allocate_sp_pool(scsi_qla_host_t *ha)
1da177e4
LT		 2093{
2094 int rval;
2095
2096 rval = QLA_SUCCESS;
2097 ha->srb_mempool = mempool_create(SRB_MIN_REQ, mempool_alloc_slab,
2098 mempool_free_slab, srb_cachep);
2099 if (ha->srb_mempool == NULL) {
2100 qla_printk(KERN_INFO, ha, "Unable to allocate SRB mempool.\n");
2101 rval = QLA_FUNCTION_FAILED;
2102 }
2103 return (rval);
2104}
2105
2106/*
2107 * This routine frees all adapter allocated memory.
fa2a1ce5 2108 *
1da177e4
LT		 2109 */
2110static void
fa2a1ce5 2111qla2x00_free_sp_pool( scsi_qla_host_t *ha)
1da177e4
LT		 2112{
2113 if (ha->srb_mempool) {
2114 mempool_destroy(ha->srb_mempool);
2115 ha->srb_mempool = NULL;
2116 }
2117}
2118
2119/**************************************************************************
2120* qla2x00_do_dpc
2121* This kernel thread is a task that is schedule by the interrupt handler
2122* to perform the background processing for interrupts.
2123*
2124* Notes:
2125* This task always run in the context of a kernel thread. It
2126* is kick-off by the driver's detect code and starts up
2127* up one per adapter. It immediately goes to sleep and waits for
2128* some fibre event. When either the interrupt handler or
2129* the timer routine detects a event it will one of the task
2130* bits then wake us up.
2131**************************************************************************/
2132static int
2133qla2x00_do_dpc(void *data)
2134{
2135 DECLARE_MUTEX_LOCKED(sem);
2136 scsi_qla_host_t *ha;
2137 fc_port_t *fcport;
1da177e4 2138 uint8_t status;
1da177e4 2139 uint16_t next_loopid;
1da177e4
LT		 2140
2141 ha = (scsi_qla_host_t *)data;
2142
2143 lock_kernel();
2144
2145 daemonize("%s_dpc", ha->host_str);
2146 allow_signal(SIGHUP);
2147
2148 ha->dpc_wait = &sem;
2149
2150 set_user_nice(current, -20);
2151
2152 unlock_kernel();
2153
2154 complete(&ha->dpc_inited);
2155
2156 while (1) {
2157 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
2158
2159 if (down_interruptible(&sem))
2160 break;
2161
2162 if (ha->dpc_should_die)
2163 break;
2164
2165 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
2166
2167 /* Initialization not yet finished. Don't do anything yet. */
2168 if (!ha->flags.init_done || ha->dpc_active)
2169 continue;
2170
2171 DEBUG3(printk("scsi(%ld): DPC handler\n", ha->host_no));
2172
2173 ha->dpc_active = 1;
2174
1da177e4 2175 if (ha->flags.mbox_busy) {
1da177e4
LT		 2176 ha->dpc_active = 0;
2177 continue;
2178 }
2179
2180 if (test_and_clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) {
2181
2182 DEBUG(printk("scsi(%ld): dpc: sched "
2183 "qla2x00_abort_isp ha = %p\n",
2184 ha->host_no, ha));
2185 if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
2186 &ha->dpc_flags))) {
2187
2188 if (qla2x00_abort_isp(ha)) {
2189 /* failed. retry later */
2190 set_bit(ISP_ABORT_NEEDED,
2191 &ha->dpc_flags);
2192 }
2193 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2194 }
2195 DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
2196 ha->host_no));
2197 }
2198
d97994dc
AV		 2199 if (test_and_clear_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags))
2200 qla2x00_update_fcports(ha);
2201
91ca7b01
AV		 2202 if (test_and_clear_bit(LOOP_RESET_NEEDED, &ha->dpc_flags)) {
2203 DEBUG(printk("scsi(%ld): dpc: sched loop_reset()\n",
2204 ha->host_no));
2205 qla2x00_loop_reset(ha);
2206 }
2207
1da177e4
LT		 2208 if (test_and_clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) &&
2209 (!(test_and_set_bit(RESET_ACTIVE, &ha->dpc_flags)))) {
2210
2211 DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
2212 ha->host_no));
2213
2214 qla2x00_rst_aen(ha);
2215 clear_bit(RESET_ACTIVE, &ha->dpc_flags);
2216 }
2217
2218 /* Retry each device up to login retry count */
2219 if ((test_and_clear_bit(RELOGIN_NEEDED, &ha->dpc_flags)) &&
2220 !test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) &&
2221 atomic_read(&ha->loop_state) != LOOP_DOWN) {
2222
2223 DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
2224 ha->host_no));
2225
2226 next_loopid = 0;
2227 list_for_each_entry(fcport, &ha->fcports, list) {
2228 if (fcport->port_type != FCT_TARGET)
2229 continue;
2230
2231 /*
2232 * If the port is not ONLINE then try to login
2233 * to it if we haven't run out of retries.
2234 */
2235 if (atomic_read(&fcport->state) != FCS_ONLINE &&
2236 fcport->login_retry) {
2237
2238 fcport->login_retry--;
2239 if (fcport->flags & FCF_FABRIC_DEVICE) {
2240 if (fcport->flags &
2241 FCF_TAPE_PRESENT)
abbd8870 2242 ha->isp_ops.fabric_logout(
1c7c6357
AV		 2243 ha, fcport->loop_id,
2244 fcport->d_id.b.domain,
2245 fcport->d_id.b.area,
2246 fcport->d_id.b.al_pa);
1da177e4
LT		 2247 status = qla2x00_fabric_login(
2248 ha, fcport, &next_loopid);
2249 } else
2250 status =
2251 qla2x00_local_device_login(
2252 ha, fcport->loop_id);
2253
2254 if (status == QLA_SUCCESS) {
2255 fcport->old_loop_id = fcport->loop_id;
2256
2257 DEBUG(printk("scsi(%ld): port login OK: logged in ID 0x%x\n",
2258 ha->host_no, fcport->loop_id));
fa2a1ce5 2259
052c40c8
AV		 2260 qla2x00_update_fcport(ha,
2261 fcport);
1da177e4
LT		 2262 } else if (status == 1) {
2263 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
2264 /* retry the login again */
2265 DEBUG(printk("scsi(%ld): Retrying %d login again loop_id 0x%x\n",
2266 ha->host_no,
2267 fcport->login_retry, fcport->loop_id));
2268 } else {
2269 fcport->login_retry = 0;
2270 }
2271 }
2272 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2273 break;
2274 }
2275 DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
2276 ha->host_no));
2277 }
2278
2279 if ((test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags)) &&
2280 atomic_read(&ha->loop_state) != LOOP_DOWN) {
2281
2282 clear_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags);
2283 DEBUG(printk("scsi(%ld): qla2x00_login_retry()\n",
2284 ha->host_no));
fa2a1ce5 2285
1da177e4
LT		 2286 set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
2287
2288 DEBUG(printk("scsi(%ld): qla2x00_login_retry - end\n",
2289 ha->host_no));
2290 }
2291
2292 if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
2293
2294 DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
2295 ha->host_no));
2296
2297 if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
2298 &ha->dpc_flags))) {
2299
2300 qla2x00_loop_resync(ha);
2301
2302 clear_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags);
2303 }
2304
2305 DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
2306 ha->host_no));
2307 }
2308
1da177e4
LT		 2309 if (test_and_clear_bit(FCPORT_RESCAN_NEEDED, &ha->dpc_flags)) {
2310
2311 DEBUG(printk("scsi(%ld): Rescan flagged fcports...\n",
2312 ha->host_no));
2313
2314 qla2x00_rescan_fcports(ha);
2315
2316 DEBUG(printk("scsi(%ld): Rescan flagged fcports..."
2317 "end.\n",
2318 ha->host_no));
2319 }
2320
1da177e4 2321 if (!ha->interrupts_on)
abbd8870 2322 ha->isp_ops.enable_intrs(ha);
1da177e4 2323
f6df144c
AV		 2324 if (test_and_clear_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags))
2325 ha->isp_ops.beacon_blink(ha);
2326
1da177e4
LT		 2327 ha->dpc_active = 0;
2328 } /* End of while(1) */
2329
2330 DEBUG(printk("scsi(%ld): DPC handler exiting\n", ha->host_no));
2331
2332 /*
2333 * Make sure that nobody tries to wake us up again.
2334 */
2335 ha->dpc_wait = NULL;
2336 ha->dpc_active = 0;
2337
2338 complete_and_exit(&ha->dpc_exited, 0);
2339}
2340
1da177e4
LT		 2341/*
2342* qla2x00_rst_aen
2343* Processes asynchronous reset.
2344*
2345* Input:
2346* ha = adapter block pointer.
2347*/
2348static void
fa2a1ce5 2349qla2x00_rst_aen(scsi_qla_host_t *ha)
1da177e4
LT		 2350{
2351 if (ha->flags.online && !ha->flags.reset_active &&
2352 !atomic_read(&ha->loop_down_timer) &&
2353 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) {
2354 do {
2355 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
2356
2357 /*
2358 * Issue marker command only when we are going to start
2359 * the I/O.
2360 */
2361 ha->marker_needed = 1;
2362 } while (!atomic_read(&ha->loop_down_timer) &&
2363 (test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags)));
2364 }
2365}
2366
f4f051eb
AV		 2367static void
2368qla2x00_sp_free_dma(scsi_qla_host_t *ha, srb_t *sp)
2369{
2370 struct scsi_cmnd *cmd = sp->cmd;
2371
2372 if (sp->flags & SRB_DMA_VALID) {
2373 if (cmd->use_sg) {
2374 dma_unmap_sg(&ha->pdev->dev, cmd->request_buffer,
2375 cmd->use_sg, cmd->sc_data_direction);
2376 } else if (cmd->request_bufflen) {
2377 dma_unmap_single(&ha->pdev->dev, sp->dma_handle,
2378 cmd->request_bufflen, cmd->sc_data_direction);
2379 }
2380 sp->flags &= ~SRB_DMA_VALID;
2381 }
fca29703 2382 CMD_SP(cmd) = NULL;
f4f051eb
AV		 2383}
2384
2385void
2386qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *sp)
2387{
2388 struct scsi_cmnd *cmd = sp->cmd;
2389
2390 qla2x00_sp_free_dma(ha, sp);
2391
f4f051eb
AV		 2392 mempool_free(sp, ha->srb_mempool);
2393
2394 cmd->scsi_done(cmd);
2395}
bdf79621 2396
1da177e4
LT		 2397/**************************************************************************
2398* qla2x00_timer
2399*
2400* Description:
2401* One second timer
2402*
2403* Context: Interrupt
2404***************************************************************************/
2405static void
2406qla2x00_timer(scsi_qla_host_t *ha)
2407{
1da177e4
LT		 2408 unsigned long cpu_flags = 0;
2409 fc_port_t *fcport;
1da177e4
LT		 2410 int start_dpc = 0;
2411 int index;
2412 srb_t *sp;
f4f051eb 2413 int t;
1da177e4
LT		 2414
2415 /*
2416 * Ports - Port down timer.
2417 *
2418 * Whenever, a port is in the LOST state we start decrementing its port
2419 * down timer every second until it reaches zero. Once it reaches zero
fa2a1ce5 2420 * the port it marked DEAD.
1da177e4
LT		 2421 */
2422 t = 0;
2423 list_for_each_entry(fcport, &ha->fcports, list) {
2424 if (fcport->port_type != FCT_TARGET)
2425 continue;
2426
2427 if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
2428
2429 if (atomic_read(&fcport->port_down_timer) == 0)
2430 continue;
2431
fa2a1ce5 2432 if (atomic_dec_and_test(&fcport->port_down_timer) != 0)
1da177e4 2433 atomic_set(&fcport->state, FCS_DEVICE_DEAD);
fa2a1ce5 2434
1da177e4 2435 DEBUG(printk("scsi(%ld): fcport-%d - port retry count: "
fca29703 2436 "%d remaining\n",
1da177e4
LT		 2437 ha->host_no,
2438 t, atomic_read(&fcport->port_down_timer)));
2439 }
2440 t++;
2441 } /* End of for fcport */
2442
1da177e4
LT		 2443
2444 /* Loop down handler. */
2445 if (atomic_read(&ha->loop_down_timer) > 0 &&
2446 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags)) && ha->flags.online) {
2447
2448 if (atomic_read(&ha->loop_down_timer) ==
2449 ha->loop_down_abort_time) {
2450
2451 DEBUG(printk("scsi(%ld): Loop Down - aborting the "
2452 "queues before time expire\n",
2453 ha->host_no));
2454
2455 if (!IS_QLA2100(ha) && ha->link_down_timeout)
fa2a1ce5 2456 atomic_set(&ha->loop_state, LOOP_DEAD);
1da177e4
LT		 2457
2458 /* Schedule an ISP abort to return any tape commands. */
2459 spin_lock_irqsave(&ha->hardware_lock, cpu_flags);
2460 for (index = 1; index < MAX_OUTSTANDING_COMMANDS;
2461 index++) {
bdf79621
AV		 2462 fc_port_t *sfcp;
2463
1da177e4
LT		 2464 sp = ha->outstanding_cmds[index];
2465 if (!sp)
2466 continue;
bdf79621
AV		 2467 sfcp = sp->fcport;
2468 if (!(sfcp->flags & FCF_TAPE_PRESENT))
1da177e4
LT		 2469 continue;
2470
2471 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2472 break;
2473 }
2474 spin_unlock_irqrestore(&ha->hardware_lock, cpu_flags);
2475
2476 set_bit(ABORT_QUEUES_NEEDED, &ha->dpc_flags);
2477 start_dpc++;
2478 }
2479
2480 /* if the loop has been down for 4 minutes, reinit adapter */
2481 if (atomic_dec_and_test(&ha->loop_down_timer) != 0) {
2482 DEBUG(printk("scsi(%ld): Loop down exceed 4 mins - "
2483 "restarting queues.\n",
2484 ha->host_no));
2485
2486 set_bit(RESTART_QUEUES_NEEDED, &ha->dpc_flags);
2487 start_dpc++;
2488
2489 if (!(ha->device_flags & DFLG_NO_CABLE)) {
2490 DEBUG(printk("scsi(%ld): Loop down - "
2491 "aborting ISP.\n",
2492 ha->host_no));
2493 qla_printk(KERN_WARNING, ha,
2494 "Loop down - aborting ISP.\n");
2495
2496 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2497 }
2498 }
fca29703 2499 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
1da177e4
LT		 2500 ha->host_no,
2501 atomic_read(&ha->loop_down_timer)));
2502 }
2503
f6df144c
AV		 2504 /* Check if beacon LED needs to be blinked */
2505 if (ha->beacon_blink_led == 1) {
2506 set_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags);
2507 start_dpc++;
2508 }
2509
1da177e4
LT		 2510 /* Schedule the DPC routine if needed */
2511 if ((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags) ||
2512 test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) ||
91ca7b01 2513 test_bit(LOOP_RESET_NEEDED, &ha->dpc_flags) ||
d97994dc 2514 test_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags) ||
1da177e4
LT		 2515 start_dpc ||
2516 test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags) ||
f4f051eb 2517 test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) ||
f6df144c 2518 test_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags) ||
1da177e4
LT		 2519 test_bit(RELOGIN_NEEDED, &ha->dpc_flags)) &&
2520 ha->dpc_wait && !ha->dpc_active) {
2521
2522 up(ha->dpc_wait);
2523 }
2524
2525 qla2x00_restart_timer(ha, WATCH_INTERVAL);
2526}
2527
1da177e4
LT		 2528/* XXX(hch): crude hack to emulate a down_timeout() */
2529int
2530qla2x00_down_timeout(struct semaphore *sema, unsigned long timeout)
2531{
fe74c71f
AV		 2532 const unsigned int step = 100; /* msecs */
2533 unsigned int iterations = jiffies_to_msecs(timeout)/100;
1da177e4
LT		 2534
2535 do {
2536 if (!down_trylock(sema))
2537 return 0;
fe74c71f 2538 if (msleep_interruptible(step))
1da177e4 2539 break;
fe74c71f 2540 } while (--iterations >= 0);
1da177e4
LT		 2541
2542 return -ETIMEDOUT;
2543}
2544
5433383e
AV		 2545#if defined(CONFIG_SCSI_QLA2XXX_EMBEDDED_FIRMWARE)
2546
2547#define qla2x00_release_firmware() do { } while (0)
331e3476
AV		 2548#define qla2x00_pci_module_init() (0)
2549#define qla2x00_pci_module_exit() do { } while (0)
fca29703 2550
5433383e
AV		 2551#else /* !defined(CONFIG_SCSI_QLA2XXX_EMBEDDED_FIRMWARE) */
2552
2553/* Firmware interface routines. */
2554
2555#define FW_BLOBS 6
2556#define FW_ISP21XX 0
2557#define FW_ISP22XX 1
2558#define FW_ISP2300 2
2559#define FW_ISP2322 3
2560#define FW_ISP63XX 4
2561#define FW_ISP24XX 5
2562
2563static DECLARE_MUTEX(qla_fw_lock);
2564
2565static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
2566 { .name = "ql2100_fw.bin", .segs = { 0x1000, 0 }, },
2567 { .name = "ql2200_fw.bin", .segs = { 0x1000, 0 }, },
2568 { .name = "ql2300_fw.bin", .segs = { 0x800, 0 }, },
2569 { .name = "ql2322_fw.bin", .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
2570 { .name = "ql6312_fw.bin", .segs = { 0x800, 0 }, },
2571 { .name = "ql2400_fw.bin", },
2572};
2573
2574struct fw_blob *
2575qla2x00_request_firmware(scsi_qla_host_t *ha)
2576{
2577 struct fw_blob *blob;
2578
2579 blob = NULL;
2580 if (IS_QLA2100(ha)) {
2581 blob = &qla_fw_blobs[FW_ISP21XX];
2582 } else if (IS_QLA2200(ha)) {
2583 blob = &qla_fw_blobs[FW_ISP22XX];
2584 } else if (IS_QLA2300(ha) || IS_QLA2312(ha)) {
2585 blob = &qla_fw_blobs[FW_ISP2300];
2586 } else if (IS_QLA2322(ha)) {
2587 blob = &qla_fw_blobs[FW_ISP2322];
2588 } else if (IS_QLA6312(ha) || IS_QLA6322(ha)) {
2589 blob = &qla_fw_blobs[FW_ISP63XX];
2590 } else if (IS_QLA24XX(ha)) {
2591 blob = &qla_fw_blobs[FW_ISP24XX];
2592 }
2593
2594 down(&qla_fw_lock);
2595 if (blob->fw)
2596 goto out;
2597
2598 if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
2599 DEBUG2(printk("scsi(%ld): Failed to load firmware image "
2600 "(%s).\n", ha->host_no, blob->name));
2601 blob->fw = NULL;
2602 blob = NULL;
2603 goto out;
2604 }
2605
2606out:
2607 up(&qla_fw_lock);
2608 return blob;
2609}
2610
2611static void
2612qla2x00_release_firmware(void)
2613{
2614 int idx;
2615
2616 down(&qla_fw_lock);
2617 for (idx = 0; idx < FW_BLOBS; idx++)
2618 if (qla_fw_blobs[idx].fw)
2619 release_firmware(qla_fw_blobs[idx].fw);
2620 up(&qla_fw_lock);
2621}
2622
2623static struct qla_board_info qla_board_tbl = {
2624 .drv_name = "qla2xxx",
2625};
2626
2627static struct pci_device_id qla2xxx_pci_tbl[] = {
2628 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100,
2629 PCI_ANY_ID, PCI_ANY_ID, },
2630 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200,
2631 PCI_ANY_ID, PCI_ANY_ID, },
2632 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300,
2633 PCI_ANY_ID, PCI_ANY_ID, },
2634 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312,
2635 PCI_ANY_ID, PCI_ANY_ID, },
2636 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322,
2637 PCI_ANY_ID, PCI_ANY_ID, },
2638 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312,
2639 PCI_ANY_ID, PCI_ANY_ID, },
2640 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322,
2641 PCI_ANY_ID, PCI_ANY_ID, },
2642 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422,
2643 PCI_ANY_ID, PCI_ANY_ID, },
2644 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432,
2645 PCI_ANY_ID, PCI_ANY_ID, },
2646 { 0 },
2647};
2648MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
2649
2650static int __devinit
2651qla2xxx_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
2652{
2653 return qla2x00_probe_one(pdev, &qla_board_tbl);
2654}
2655
2656static void __devexit
2657qla2xxx_remove_one(struct pci_dev *pdev)
2658{
2659 qla2x00_remove_one(pdev);
2660}
2661
fca29703
AV		 2662static struct pci_driver qla2xxx_pci_driver = {
2663 .name = "qla2xxx",
0a21ef1e
JB		 2664 .driver = {
2665 .owner = THIS_MODULE,
2666 },
fca29703
AV		 2667 .id_table = qla2xxx_pci_tbl,
2668 .probe = qla2xxx_probe_one,
2669 .remove = __devexit_p(qla2xxx_remove_one),
2670};
2671
331e3476
AV		 2672static inline int
2673qla2x00_pci_module_init(void)
2674{
2675 return pci_module_init(&qla2xxx_pci_driver);
2676}
2677
2678static inline void
2679qla2x00_pci_module_exit(void)
2680{
2681 pci_unregister_driver(&qla2xxx_pci_driver);
2682}
2683
2684#endif
2685
1da177e4
LT		 2686/**
2687 * qla2x00_module_init - Module initialization.
2688 **/
2689static int __init
2690qla2x00_module_init(void)
2691{
fca29703
AV		 2692 int ret = 0;
2693
1da177e4 2694 /* Allocate cache for SRBs. */
354d6b21 2695 srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
1da177e4
LT		 2696 SLAB_HWCACHE_ALIGN, NULL, NULL);
2697 if (srb_cachep == NULL) {
2698 printk(KERN_ERR
2699 "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
2700 return -ENOMEM;
2701 }
2702
2703 /* Derive version string. */
2704 strcpy(qla2x00_version_str, QLA2XXX_VERSION);
5433383e
AV		 2705#if defined(CONFIG_SCSI_QLA2XXX_EMBEDDED_FIRMWARE)
2706 strcat(qla2x00_version_str, "-fw");
2707#endif
1da177e4
LT		 2708#if DEBUG_QLA2100
2709 strcat(qla2x00_version_str, "-debug");
2710#endif
1c97a12a
AV		 2711 qla2xxx_transport_template =
2712 fc_attach_transport(&qla2xxx_transport_functions);
1da177e4
LT		 2713 if (!qla2xxx_transport_template)
2714 return -ENODEV;
2715
2716 printk(KERN_INFO "QLogic Fibre Channel HBA Driver\n");
331e3476 2717 ret = qla2x00_pci_module_init();
fca29703
AV		 2718 if (ret) {
2719 kmem_cache_destroy(srb_cachep);
2720 fc_release_transport(qla2xxx_transport_template);
2721 }
2722 return ret;
1da177e4
LT		 2723}
2724
2725/**
2726 * qla2x00_module_exit - Module cleanup.
2727 **/
2728static void __exit
2729qla2x00_module_exit(void)
2730{
331e3476 2731 qla2x00_pci_module_exit();
5433383e 2732 qla2x00_release_firmware();
354d6b21 2733 kmem_cache_destroy(srb_cachep);
1da177e4
LT		 2734 fc_release_transport(qla2xxx_transport_template);
2735}
2736
2737module_init(qla2x00_module_init);
2738module_exit(qla2x00_module_exit);
2739
2740MODULE_AUTHOR("QLogic Corporation");
2741MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
2742MODULE_LICENSE("GPL");
2743MODULE_VERSION(QLA2XXX_VERSION);
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