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[SCSI] 3ware 9000 driver >4GB memory fix
[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 */
854165f4 516int
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 1273
854165f4
AV		 1274if (PCI_FUNC(pdev->devfn))
1275 goto probe_out;
1276
1da177e4 1277 if (pci_enable_device(pdev))
a1541d5a 1278 goto probe_out;
1da177e4 1279
5433383e
AV		 1280 sht = &qla2x00_driver_template;
1281 if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
1282 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432)
1283 sht = &qla24xx_driver_template;
1284 host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
1da177e4
LT		 1285 if (host == NULL) {
1286 printk(KERN_WARNING
1287 "qla2xxx: Couldn't allocate host from scsi layer!\n");
1288 goto probe_disable_device;
1289 }
1290
1291 /* Clear our data area */
1292 ha = (scsi_qla_host_t *)host->hostdata;
1293 memset(ha, 0, sizeof(scsi_qla_host_t));
1294
1295 ha->pdev = pdev;
1296 ha->host = host;
1297 ha->host_no = host->host_no;
1298 ha->brd_info = brd_info;
1299 sprintf(ha->host_str, "%s_%ld", ha->brd_info->drv_name, ha->host_no);
1300
444d1d9b
AM		 1301 ha->dpc_pid = -1;
1302
1da177e4
LT		 1303 /* Configure PCI I/O space */
1304 ret = qla2x00_iospace_config(ha);
a1541d5a
AV		 1305 if (ret)
1306 goto probe_failed;
1da177e4 1307
1da177e4 1308 qla_printk(KERN_INFO, ha,
5433383e
AV		 1309 "Found an ISP%04X, irq %d, iobase 0x%p\n", pdev->device, pdev->irq,
1310 ha->iobase);
1da177e4
LT		 1311
1312 spin_lock_init(&ha->hardware_lock);
1313
1da177e4
LT		 1314 ha->prev_topology = 0;
1315 ha->ports = MAX_BUSES;
fca29703 1316 ha->init_cb_size = sizeof(init_cb_t);
cca5335c 1317 ha->mgmt_svr_loop_id = MANAGEMENT_SERVER;
04414013 1318 ha->link_data_rate = LDR_UNKNOWN;
854165f4 1319 ha->optrom_size = OPTROM_SIZE_2300;
1da177e4 1320
abbd8870
AV		 1321 /* Assign ISP specific operations. */
1322 ha->isp_ops.pci_config = qla2100_pci_config;
1323 ha->isp_ops.reset_chip = qla2x00_reset_chip;
1324 ha->isp_ops.chip_diag = qla2x00_chip_diag;
1325 ha->isp_ops.config_rings = qla2x00_config_rings;
1326 ha->isp_ops.reset_adapter = qla2x00_reset_adapter;
1327 ha->isp_ops.nvram_config = qla2x00_nvram_config;
1328 ha->isp_ops.update_fw_options = qla2x00_update_fw_options;
0107109e 1329 ha->isp_ops.load_risc = qla2x00_load_risc;
abbd8870
AV		 1330 ha->isp_ops.pci_info_str = qla2x00_pci_info_str;
1331 ha->isp_ops.fw_version_str = qla2x00_fw_version_str;
1332 ha->isp_ops.intr_handler = qla2100_intr_handler;
1333 ha->isp_ops.enable_intrs = qla2x00_enable_intrs;
1334 ha->isp_ops.disable_intrs = qla2x00_disable_intrs;
1335 ha->isp_ops.abort_command = qla2x00_abort_command;
1336 ha->isp_ops.abort_target = qla2x00_abort_target;
1337 ha->isp_ops.fabric_login = qla2x00_login_fabric;
1338 ha->isp_ops.fabric_logout = qla2x00_fabric_logout;
1339 ha->isp_ops.calc_req_entries = qla2x00_calc_iocbs_32;
1340 ha->isp_ops.build_iocbs = qla2x00_build_scsi_iocbs_32;
1341 ha->isp_ops.prep_ms_iocb = qla2x00_prep_ms_iocb;
cca5335c 1342 ha->isp_ops.prep_ms_fdmi_iocb = qla2x00_prep_ms_fdmi_iocb;
459c5378
AV		 1343 ha->isp_ops.read_nvram = qla2x00_read_nvram_data;
1344 ha->isp_ops.write_nvram = qla2x00_write_nvram_data;
abbd8870
AV		 1345 ha->isp_ops.fw_dump = qla2100_fw_dump;
1346 ha->isp_ops.ascii_fw_dump = qla2100_ascii_fw_dump;
854165f4
AV		 1347 ha->isp_ops.read_optrom = qla2x00_read_optrom_data;
1348 ha->isp_ops.write_optrom = qla2x00_write_optrom_data;
1da177e4 1349 if (IS_QLA2100(ha)) {
354d6b21 1350 host->max_id = MAX_TARGETS_2100;
1da177e4
LT		 1351 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
1352 ha->request_q_length = REQUEST_ENTRY_CNT_2100;
1353 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1354 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1355 host->sg_tablesize = 32;
abbd8870 1356 ha->gid_list_info_size = 4;
1da177e4 1357 } else if (IS_QLA2200(ha)) {
354d6b21 1358 host->max_id = MAX_TARGETS_2200;
1da177e4
LT		 1359 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1360 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1361 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1362 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
abbd8870 1363 ha->gid_list_info_size = 4;
fca29703 1364 } else if (IS_QLA23XX(ha)) {
354d6b21 1365 host->max_id = MAX_TARGETS_2200;
1da177e4
LT		 1366 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1367 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1368 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1369 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
abbd8870
AV		 1370 ha->isp_ops.pci_config = qla2300_pci_config;
1371 ha->isp_ops.intr_handler = qla2300_intr_handler;
1372 ha->isp_ops.fw_dump = qla2300_fw_dump;
1373 ha->isp_ops.ascii_fw_dump = qla2300_ascii_fw_dump;
f6df144c
AV		 1374 ha->isp_ops.beacon_on = qla2x00_beacon_on;
1375 ha->isp_ops.beacon_off = qla2x00_beacon_off;
1376 ha->isp_ops.beacon_blink = qla2x00_beacon_blink;
abbd8870 1377 ha->gid_list_info_size = 6;
854165f4
AV		 1378 if (IS_QLA2322(ha) || IS_QLA6322(ha))
1379 ha->optrom_size = OPTROM_SIZE_2322;
fca29703
AV		 1380 } else if (IS_QLA24XX(ha) || IS_QLA25XX(ha)) {
1381 host->max_id = MAX_TARGETS_2200;
1382 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1383 ha->request_q_length = REQUEST_ENTRY_CNT_24XX;
1384 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1385 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1386 ha->init_cb_size = sizeof(struct init_cb_24xx);
cca5335c 1387 ha->mgmt_svr_loop_id = 10;
fca29703
AV		 1388 ha->isp_ops.pci_config = qla24xx_pci_config;
1389 ha->isp_ops.reset_chip = qla24xx_reset_chip;
1390 ha->isp_ops.chip_diag = qla24xx_chip_diag;
1391 ha->isp_ops.config_rings = qla24xx_config_rings;
1392 ha->isp_ops.reset_adapter = qla24xx_reset_adapter;
1393 ha->isp_ops.nvram_config = qla24xx_nvram_config;
1394 ha->isp_ops.update_fw_options = qla24xx_update_fw_options;
5433383e 1395 ha->isp_ops.load_risc = qla24xx_load_risc;
331e3476
AV		 1396#if defined(CONFIG_SCSI_QLA2XXX_EMBEDDED_FIRMWARE)
1397 if (ql2xfwloadflash)
1398 ha->isp_ops.load_risc = qla24xx_load_risc_flash;
5433383e 1399#endif
fca29703
AV		 1400 ha->isp_ops.pci_info_str = qla24xx_pci_info_str;
1401 ha->isp_ops.fw_version_str = qla24xx_fw_version_str;
1402 ha->isp_ops.intr_handler = qla24xx_intr_handler;
1403 ha->isp_ops.enable_intrs = qla24xx_enable_intrs;
1404 ha->isp_ops.disable_intrs = qla24xx_disable_intrs;
1405 ha->isp_ops.abort_command = qla24xx_abort_command;
1406 ha->isp_ops.abort_target = qla24xx_abort_target;
1407 ha->isp_ops.fabric_login = qla24xx_login_fabric;
1408 ha->isp_ops.fabric_logout = qla24xx_fabric_logout;
1409 ha->isp_ops.prep_ms_iocb = qla24xx_prep_ms_iocb;
cca5335c 1410 ha->isp_ops.prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb;
fca29703
AV		 1411 ha->isp_ops.read_nvram = qla24xx_read_nvram_data;
1412 ha->isp_ops.write_nvram = qla24xx_write_nvram_data;
1413 ha->isp_ops.fw_dump = qla24xx_fw_dump;
1414 ha->isp_ops.ascii_fw_dump = qla24xx_ascii_fw_dump;
854165f4
AV		 1415 ha->isp_ops.read_optrom = qla24xx_read_optrom_data;
1416 ha->isp_ops.write_optrom = qla24xx_write_optrom_data;
f6df144c
AV		 1417 ha->isp_ops.beacon_on = qla24xx_beacon_on;
1418 ha->isp_ops.beacon_off = qla24xx_beacon_off;
1419 ha->isp_ops.beacon_blink = qla24xx_beacon_blink;
fca29703 1420 ha->gid_list_info_size = 8;
854165f4 1421 ha->optrom_size = OPTROM_SIZE_24XX;
1da177e4
LT		 1422 }
1423 host->can_queue = ha->request_q_length + 128;
1424
1425 /* load the F/W, read paramaters, and init the H/W */
1426 ha->instance = num_hosts;
1427
1428 init_MUTEX(&ha->mbx_cmd_sem);
1429 init_MUTEX_LOCKED(&ha->mbx_intr_sem);
1430
1431 INIT_LIST_HEAD(&ha->list);
1432 INIT_LIST_HEAD(&ha->fcports);
1433 INIT_LIST_HEAD(&ha->rscn_fcports);
1da177e4
LT		 1434
1435 /*
1436 * These locks are used to prevent more than one CPU
1437 * from modifying the queue at the same time. The
1438 * higher level "host_lock" will reduce most
1439 * contention for these locks.
1440 */
1441 spin_lock_init(&ha->mbx_reg_lock);
1da177e4 1442
1da177e4
LT		 1443 init_completion(&ha->dpc_inited);
1444 init_completion(&ha->dpc_exited);
1445
1446 qla2x00_config_dma_addressing(ha);
1447 if (qla2x00_mem_alloc(ha)) {
1448 qla_printk(KERN_WARNING, ha,
1449 "[ERROR] Failed to allocate memory for adapter\n");
1450
a1541d5a
AV		 1451 ret = -ENOMEM;
1452 goto probe_failed;
1da177e4
LT		 1453 }
1454
1455 if (qla2x00_initialize_adapter(ha) &&
1456 !(ha->device_flags & DFLG_NO_CABLE)) {
1457
1458 qla_printk(KERN_WARNING, ha,
1459 "Failed to initialize adapter\n");
1460
1461 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
1462 "Adapter flags %x.\n",
1463 ha->host_no, ha->device_flags));
1464
a1541d5a 1465 ret = -ENODEV;
1da177e4
LT		 1466 goto probe_failed;
1467 }
1468
1469 /*
1470 * Startup the kernel thread for this host adapter
1471 */
1472 ha->dpc_should_die = 0;
1473 ha->dpc_pid = kernel_thread(qla2x00_do_dpc, ha, 0);
1474 if (ha->dpc_pid < 0) {
1475 qla_printk(KERN_WARNING, ha,
1476 "Unable to start DPC thread!\n");
1477
a1541d5a 1478 ret = -ENODEV;
1da177e4
LT		 1479 goto probe_failed;
1480 }
1481 wait_for_completion(&ha->dpc_inited);
1482
a1541d5a
AV		 1483 host->this_id = 255;
1484 host->cmd_per_lun = 3;
1485 host->unique_id = ha->instance;
1486 host->max_cmd_len = MAX_CMDSZ;
1487 host->max_channel = ha->ports - 1;
1488 host->max_lun = MAX_LUNS;
1489 host->transportt = qla2xxx_transport_template;
1490
fca29703 1491 ret = request_irq(pdev->irq, ha->isp_ops.intr_handler,
abbd8870 1492 SA_INTERRUPT|SA_SHIRQ, ha->brd_info->drv_name, ha);
a1541d5a 1493 if (ret) {
1da177e4
LT		 1494 qla_printk(KERN_WARNING, ha,
1495 "Failed to reserve interrupt %d already in use.\n",
fca29703 1496 pdev->irq);
1da177e4
LT		 1497 goto probe_failed;
1498 }
fca29703 1499 host->irq = pdev->irq;
1da177e4
LT		 1500
1501 /* Initialized the timer */
1502 qla2x00_start_timer(ha, qla2x00_timer, WATCH_INTERVAL);
1503
1504 DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
1505 ha->host_no, ha));
1506
abbd8870 1507 ha->isp_ops.disable_intrs(ha);
1da177e4 1508
1da177e4 1509 spin_lock_irqsave(&ha->hardware_lock, flags);
fca29703
AV		 1510 reg = ha->iobase;
1511 if (IS_QLA24XX(ha) || IS_QLA25XX(ha)) {
1512 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_HOST_INT);
1513 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_RISC_INT);
1514 } else {
1515 WRT_REG_WORD(&reg->isp.semaphore, 0);
1516 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_RISC_INT);
1517 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_HOST_INT);
1518
1519 /* Enable proper parity */
1520 if (!IS_QLA2100(ha) && !IS_QLA2200(ha)) {
1521 if (IS_QLA2300(ha))
1522 /* SRAM parity */
1523 WRT_REG_WORD(&reg->isp.hccr,
1524 (HCCR_ENABLE_PARITY + 0x1));
1525 else
1526 /* SRAM, Instruction RAM and GP RAM parity */
1527 WRT_REG_WORD(&reg->isp.hccr,
1528 (HCCR_ENABLE_PARITY + 0x7));
1529 }
1da177e4
LT		 1530 }
1531 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1532
abbd8870 1533 ha->isp_ops.enable_intrs(ha);
1da177e4
LT		 1534
1535 /* v2.19.5b6 */
1536 /*
1537 * Wait around max loop_reset_delay secs for the devices to come
1538 * on-line. We don't want Linux scanning before we are ready.
1539 *
1540 */
1541 for (wait_switch = jiffies + (ha->loop_reset_delay * HZ);
1542 time_before(jiffies,wait_switch) &&
1543 !(ha->device_flags & (DFLG_NO_CABLE | DFLG_FABRIC_DEVICES))
1544 && (ha->device_flags & SWITCH_FOUND) ;) {
1545
1546 qla2x00_check_fabric_devices(ha);
1547
1548 msleep(10);
1549 }
1550
a1541d5a 1551 pci_set_drvdata(pdev, ha);
1da177e4
LT		 1552 ha->flags.init_done = 1;
1553 num_hosts++;
1554
a1541d5a
AV		 1555 ret = scsi_add_host(host, &pdev->dev);
1556 if (ret)
1557 goto probe_failed;
1558
1559 qla2x00_alloc_sysfs_attr(ha);
1560
1561 qla2x00_init_host_attr(ha);
1562
1da177e4
LT		 1563 qla_printk(KERN_INFO, ha, "\n"
1564 " QLogic Fibre Channel HBA Driver: %s\n"
1565 " QLogic %s - %s\n"
5433383e
AV		 1566 " ISP%04X: %s @ %s hdma%c, host#=%ld, fw=%s\n",
1567 qla2x00_version_str, ha->model_number,
1568 ha->model_desc ? ha->model_desc: "", pdev->device,
1569 ha->isp_ops.pci_info_str(ha, pci_info), pci_name(pdev),
1570 ha->flags.enable_64bit_addressing ? '+': '-', ha->host_no,
1571 ha->isp_ops.fw_version_str(ha, fw_str));
1da177e4 1572
8482e118
AV		 1573 /* Go with fc_rport registration. */
1574 list_for_each_entry(fcport, &ha->fcports, list)
1575 qla2x00_reg_remote_port(ha, fcport);
1da177e4
LT		 1576
1577 return 0;
1578
1579probe_failed:
1580 qla2x00_free_device(ha);
1581
1582 scsi_host_put(host);
1583
1584probe_disable_device:
1585 pci_disable_device(pdev);
1586
a1541d5a
AV		 1587probe_out:
1588 return ret;
1da177e4
LT		 1589}
1590EXPORT_SYMBOL_GPL(qla2x00_probe_one);
1591
1592void qla2x00_remove_one(struct pci_dev *pdev)
1593{
1594 scsi_qla_host_t *ha;
1595
1596 ha = pci_get_drvdata(pdev);
1597
8482e118 1598 qla2x00_free_sysfs_attr(ha);
1da177e4 1599
bdf79621
AV		 1600 fc_remove_host(ha->host);
1601
1da177e4
LT		 1602 scsi_remove_host(ha->host);
1603
1604 qla2x00_free_device(ha);
1605
1606 scsi_host_put(ha->host);
1607
1608 pci_set_drvdata(pdev, NULL);
1609}
1610EXPORT_SYMBOL_GPL(qla2x00_remove_one);
1611
1612static void
1613qla2x00_free_device(scsi_qla_host_t *ha)
1614{
1615 int ret;
1616
1617 /* Abort any outstanding IO descriptors. */
1618 if (!IS_QLA2100(ha) && !IS_QLA2200(ha))
1619 qla2x00_cancel_io_descriptors(ha);
1620
1da177e4
LT		 1621 /* Disable timer */
1622 if (ha->timer_active)
1623 qla2x00_stop_timer(ha);
1624
1625 /* Kill the kernel thread for this host */
1626 if (ha->dpc_pid >= 0) {
1627 ha->dpc_should_die = 1;
1628 wmb();
1629 ret = kill_proc(ha->dpc_pid, SIGHUP, 1);
1630 if (ret) {
1631 qla_printk(KERN_ERR, ha,
1632 "Unable to signal DPC thread -- (%d)\n", ret);
1633
1634 /* TODO: SOMETHING MORE??? */
1635 } else {
1636 wait_for_completion(&ha->dpc_exited);
1637 }
1638 }
1639
f6ef3b18
AV		 1640 /* Stop currently executing firmware. */
1641 qla2x00_stop_firmware(ha);
1da177e4 1642
f6ef3b18
AV		 1643 /* turn-off interrupts on the card */
1644 if (ha->interrupts_on)
1645 ha->isp_ops.disable_intrs(ha);
1646
1647 qla2x00_mem_free(ha);
1da177e4
LT		 1648
1649 ha->flags.online = 0;
1650
1651 /* Detach interrupts */
1652 if (ha->pdev->irq)
1653 free_irq(ha->pdev->irq, ha);
1654
1655 /* release io space registers */
1656 if (ha->iobase)
1657 iounmap(ha->iobase);
1658 pci_release_regions(ha->pdev);
1659
1660 pci_disable_device(ha->pdev);
1661}
1662
d97994dc
AV		 1663static inline void
1664qla2x00_schedule_rport_del(struct scsi_qla_host *ha, fc_port_t *fcport,
1665 int defer)
1666{
1667 unsigned long flags;
1668 struct fc_rport *rport;
1669
1670 if (!fcport->rport)
1671 return;
1672
1673 rport = fcport->rport;
1674 if (defer) {
1675 spin_lock_irqsave(&fcport->rport_lock, flags);
1676 fcport->drport = rport;
1677 fcport->rport = NULL;
1678 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1679 set_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags);
1680 } else {
1681 spin_lock_irqsave(&fcport->rport_lock, flags);
1682 fcport->rport = NULL;
1683 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1684 fc_remote_port_delete(rport);
1685 }
1686}
1687
1da177e4
LT		 1688/*
1689 * qla2x00_mark_device_lost Updates fcport state when device goes offline.
1690 *
1691 * Input: ha = adapter block pointer. fcport = port structure pointer.
1692 *
1693 * Return: None.
1694 *
1695 * Context:
1696 */
1697void qla2x00_mark_device_lost(scsi_qla_host_t *ha, fc_port_t *fcport,
d97994dc 1698 int do_login, int defer)
1da177e4 1699{
d97994dc
AV		 1700 if (atomic_read(&fcport->state) == FCS_ONLINE)
1701 qla2x00_schedule_rport_del(ha, fcport, defer);
19a7b4ae 1702
fa2a1ce5 1703 /*
1da177e4
LT		 1704 * We may need to retry the login, so don't change the state of the
1705 * port but do the retries.
1706 */
1707 if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
1708 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1709
1710 if (!do_login)
1711 return;
1712
1713 if (fcport->login_retry == 0) {
1714 fcport->login_retry = ha->login_retry_count;
1715 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
1716
1717 DEBUG(printk("scsi(%ld): Port login retry: "
1718 "%02x%02x%02x%02x%02x%02x%02x%02x, "
1719 "id = 0x%04x retry cnt=%d\n",
1720 ha->host_no,
1721 fcport->port_name[0],
1722 fcport->port_name[1],
1723 fcport->port_name[2],
1724 fcport->port_name[3],
1725 fcport->port_name[4],
1726 fcport->port_name[5],
1727 fcport->port_name[6],
1728 fcport->port_name[7],
1729 fcport->loop_id,
1730 fcport->login_retry));
1731 }
1732}
1733
1734/*
1735 * qla2x00_mark_all_devices_lost
1736 * Updates fcport state when device goes offline.
1737 *
1738 * Input:
1739 * ha = adapter block pointer.
1740 * fcport = port structure pointer.
1741 *
1742 * Return:
1743 * None.
1744 *
1745 * Context:
1746 */
1747void
d97994dc 1748qla2x00_mark_all_devices_lost(scsi_qla_host_t *ha, int defer)
1da177e4
LT		 1749{
1750 fc_port_t *fcport;
1751
1752 list_for_each_entry(fcport, &ha->fcports, list) {
1753 if (fcport->port_type != FCT_TARGET)
1754 continue;
1755
1756 /*
1757 * No point in marking the device as lost, if the device is
1758 * already DEAD.
1759 */
1760 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
1761 continue;
d97994dc
AV		 1762 if (atomic_read(&fcport->state) == FCS_ONLINE)
1763 qla2x00_schedule_rport_del(ha, fcport, defer);
1da177e4
LT		 1764 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1765 }
d97994dc
AV		 1766
1767 if (defer && ha->dpc_wait && !ha->dpc_active)
1768 up(ha->dpc_wait);
1da177e4
LT		 1769}
1770
1771/*
1772* qla2x00_mem_alloc
1773* Allocates adapter memory.
1774*
1775* Returns:
1776* 0 = success.
1777* 1 = failure.
1778*/
1779static uint8_t
1780qla2x00_mem_alloc(scsi_qla_host_t *ha)
1781{
1782 char name[16];
1783 uint8_t status = 1;
1784 int retry= 10;
1785
1786 do {
1787 /*
1788 * This will loop only once if everything goes well, else some
1789 * number of retries will be performed to get around a kernel
1790 * bug where available mem is not allocated until after a
1791 * little delay and a retry.
1792 */
1793 ha->request_ring = dma_alloc_coherent(&ha->pdev->dev,
1794 (ha->request_q_length + 1) * sizeof(request_t),
1795 &ha->request_dma, GFP_KERNEL);
1796 if (ha->request_ring == NULL) {
1797 qla_printk(KERN_WARNING, ha,
1798 "Memory Allocation failed - request_ring\n");
1799
1800 qla2x00_mem_free(ha);
1801 msleep(100);
1802
1803 continue;
1804 }
1805
1806 ha->response_ring = dma_alloc_coherent(&ha->pdev->dev,
1807 (ha->response_q_length + 1) * sizeof(response_t),
1808 &ha->response_dma, GFP_KERNEL);
1809 if (ha->response_ring == NULL) {
1810 qla_printk(KERN_WARNING, ha,
1811 "Memory Allocation failed - response_ring\n");
1812
1813 qla2x00_mem_free(ha);
1814 msleep(100);
1815
1816 continue;
1817 }
1818
1819 ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
1820 &ha->gid_list_dma, GFP_KERNEL);
1821 if (ha->gid_list == NULL) {
1822 qla_printk(KERN_WARNING, ha,
1823 "Memory Allocation failed - gid_list\n");
1824
1825 qla2x00_mem_free(ha);
1826 msleep(100);
1827
1828 continue;
1829 }
1830
1831 ha->rlc_rsp = dma_alloc_coherent(&ha->pdev->dev,
1832 sizeof(rpt_lun_cmd_rsp_t), &ha->rlc_rsp_dma, GFP_KERNEL);
1833 if (ha->rlc_rsp == NULL) {
1834 qla_printk(KERN_WARNING, ha,
1835 "Memory Allocation failed - rlc");
1836
1837 qla2x00_mem_free(ha);
1838 msleep(100);
1839
1840 continue;
1841 }
1842
1843 snprintf(name, sizeof(name), "qla2xxx_%ld", ha->host_no);
1844 ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
1845 DMA_POOL_SIZE, 8, 0);
1846 if (ha->s_dma_pool == NULL) {
1847 qla_printk(KERN_WARNING, ha,
1848 "Memory Allocation failed - s_dma_pool\n");
1849
1850 qla2x00_mem_free(ha);
1851 msleep(100);
1852
1853 continue;
1854 }
1855
1856 /* get consistent memory allocated for init control block */
1857 ha->init_cb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
1858 &ha->init_cb_dma);
1859 if (ha->init_cb == NULL) {
1860 qla_printk(KERN_WARNING, ha,
1861 "Memory Allocation failed - init_cb\n");
1862
1863 qla2x00_mem_free(ha);
1864 msleep(100);
1865
1866 continue;
1867 }
fca29703 1868 memset(ha->init_cb, 0, ha->init_cb_size);
1da177e4
LT		 1869
1870 /* Get consistent memory allocated for Get Port Database cmd */
1871 ha->iodesc_pd = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
1872 &ha->iodesc_pd_dma);
1873 if (ha->iodesc_pd == NULL) {
1874 /* error */
1875 qla_printk(KERN_WARNING, ha,
1876 "Memory Allocation failed - iodesc_pd\n");
1877
1878 qla2x00_mem_free(ha);
1879 msleep(100);
1880
1881 continue;
1882 }
1883 memset(ha->iodesc_pd, 0, PORT_DATABASE_SIZE);
1884
1885 /* Allocate ioctl related memory. */
1886 if (qla2x00_alloc_ioctl_mem(ha)) {
1887 qla_printk(KERN_WARNING, ha,
1888 "Memory Allocation failed - ioctl_mem\n");
1889
1890 qla2x00_mem_free(ha);
1891 msleep(100);
1892
1893 continue;
1894 }
1895
1896 if (qla2x00_allocate_sp_pool(ha)) {
1897 qla_printk(KERN_WARNING, ha,
1898 "Memory Allocation failed - "
1899 "qla2x00_allocate_sp_pool()\n");
1900
1901 qla2x00_mem_free(ha);
1902 msleep(100);
1903
1904 continue;
1905 }
1906
1907 /* Allocate memory for SNS commands */
1908 if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
1909 /* Get consistent memory allocated for SNS commands */
1910 ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
1911 sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma,
1912 GFP_KERNEL);
1913 if (ha->sns_cmd == NULL) {
1914 /* error */
1915 qla_printk(KERN_WARNING, ha,
1916 "Memory Allocation failed - sns_cmd\n");
1917
1918 qla2x00_mem_free(ha);
1919 msleep(100);
1920
1921 continue;
1922 }
1923 memset(ha->sns_cmd, 0, sizeof(struct sns_cmd_pkt));
1924 } else {
1925 /* Get consistent memory allocated for MS IOCB */
1926 ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
1927 &ha->ms_iocb_dma);
1928 if (ha->ms_iocb == NULL) {
1929 /* error */
1930 qla_printk(KERN_WARNING, ha,
1931 "Memory Allocation failed - ms_iocb\n");
1932
1933 qla2x00_mem_free(ha);
1934 msleep(100);
1935
1936 continue;
1937 }
1938 memset(ha->ms_iocb, 0, sizeof(ms_iocb_entry_t));
1939
1940 /*
1941 * Get consistent memory allocated for CT SNS
1942 * commands
1943 */
1944 ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
1945 sizeof(struct ct_sns_pkt), &ha->ct_sns_dma,
1946 GFP_KERNEL);
1947 if (ha->ct_sns == NULL) {
1948 /* error */
1949 qla_printk(KERN_WARNING, ha,
1950 "Memory Allocation failed - ct_sns\n");
1951
1952 qla2x00_mem_free(ha);
1953 msleep(100);
1954
1955 continue;
1956 }
1957 memset(ha->ct_sns, 0, sizeof(struct ct_sns_pkt));
1958 }
1959
1960 /* Done all allocations without any error. */
1961 status = 0;
1962
1963 } while (retry-- && status != 0);
1964
1965 if (status) {
1966 printk(KERN_WARNING
1967 "%s(): **** FAILED ****\n", __func__);
1968 }
1969
1970 return(status);
1971}
1972
1973/*
1974* qla2x00_mem_free
1975* Frees all adapter allocated memory.
1976*
1977* Input:
1978* ha = adapter block pointer.
1979*/
1980static void
1981qla2x00_mem_free(scsi_qla_host_t *ha)
1982{
1da177e4
LT		 1983 struct list_head *fcpl, *fcptemp;
1984 fc_port_t *fcport;
fe74c71f 1985 unsigned int wtime;/* max wait time if mbx cmd is busy. */
1da177e4
LT		 1986
1987 if (ha == NULL) {
1988 /* error */
1989 DEBUG2(printk("%s(): ERROR invalid ha pointer.\n", __func__));
1990 return;
1991 }
1992
1da177e4 1993 /* Make sure all other threads are stopped. */
fe74c71f
AV		 1994 wtime = 60 * 1000;
1995 while (ha->dpc_wait && wtime)
1996 wtime = msleep_interruptible(wtime);
1da177e4
LT		 1997
1998 /* free ioctl memory */
1999 qla2x00_free_ioctl_mem(ha);
2000
2001 /* free sp pool */
2002 qla2x00_free_sp_pool(ha);
2003
2004 if (ha->sns_cmd)
2005 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
2006 ha->sns_cmd, ha->sns_cmd_dma);
2007
2008 if (ha->ct_sns)
2009 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2010 ha->ct_sns, ha->ct_sns_dma);
2011
2012 if (ha->ms_iocb)
2013 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2014
2015 if (ha->iodesc_pd)
2016 dma_pool_free(ha->s_dma_pool, ha->iodesc_pd, ha->iodesc_pd_dma);
2017
2018 if (ha->init_cb)
2019 dma_pool_free(ha->s_dma_pool, ha->init_cb, ha->init_cb_dma);
2020
2021 if (ha->s_dma_pool)
2022 dma_pool_destroy(ha->s_dma_pool);
2023
2024 if (ha->rlc_rsp)
2025 dma_free_coherent(&ha->pdev->dev,
2026 sizeof(rpt_lun_cmd_rsp_t), ha->rlc_rsp,
2027 ha->rlc_rsp_dma);
2028
2029 if (ha->gid_list)
2030 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2031 ha->gid_list_dma);
2032
2033 if (ha->response_ring)
2034 dma_free_coherent(&ha->pdev->dev,
2035 (ha->response_q_length + 1) * sizeof(response_t),
2036 ha->response_ring, ha->response_dma);
2037
2038 if (ha->request_ring)
2039 dma_free_coherent(&ha->pdev->dev,
2040 (ha->request_q_length + 1) * sizeof(request_t),
2041 ha->request_ring, ha->request_dma);
2042
2043 ha->sns_cmd = NULL;
2044 ha->sns_cmd_dma = 0;
2045 ha->ct_sns = NULL;
2046 ha->ct_sns_dma = 0;
2047 ha->ms_iocb = NULL;
2048 ha->ms_iocb_dma = 0;
2049 ha->iodesc_pd = NULL;
2050 ha->iodesc_pd_dma = 0;
2051 ha->init_cb = NULL;
2052 ha->init_cb_dma = 0;
2053
2054 ha->s_dma_pool = NULL;
2055
2056 ha->rlc_rsp = NULL;
2057 ha->rlc_rsp_dma = 0;
2058 ha->gid_list = NULL;
2059 ha->gid_list_dma = 0;
2060
2061 ha->response_ring = NULL;
2062 ha->response_dma = 0;
2063 ha->request_ring = NULL;
2064 ha->request_dma = 0;
2065
2066 list_for_each_safe(fcpl, fcptemp, &ha->fcports) {
2067 fcport = list_entry(fcpl, fc_port_t, list);
2068
1da177e4
LT		 2069 /* fc ports */
2070 list_del_init(&fcport->list);
2071 kfree(fcport);
2072 }
2073 INIT_LIST_HEAD(&ha->fcports);
2074
2075 if (ha->fw_dump)
2076 free_pages((unsigned long)ha->fw_dump, ha->fw_dump_order);
2077
fca29703
AV		 2078 vfree(ha->fw_dump24);
2079
2080 vfree(ha->fw_dump_buffer);
1da177e4
LT		 2081
2082 ha->fw_dump = NULL;
fca29703
AV		 2083 ha->fw_dump24 = NULL;
2084 ha->fw_dumped = 0;
1da177e4
LT		 2085 ha->fw_dump_reading = 0;
2086 ha->fw_dump_buffer = NULL;
854165f4
AV		 2087
2088 vfree(ha->optrom_buffer);
1da177e4
LT		 2089}
2090
2091/*
2092 * qla2x00_allocate_sp_pool
2093 * This routine is called during initialization to allocate
2094 * memory for local srb_t.
2095 *
2096 * Input:
2097 * ha = adapter block pointer.
2098 *
2099 * Context:
2100 * Kernel context.
fa2a1ce5 2101 *
1da177e4
LT		 2102 * Note: Sets the ref_count for non Null sp to one.
2103 */
2104static int
fa2a1ce5 2105qla2x00_allocate_sp_pool(scsi_qla_host_t *ha)
1da177e4
LT		 2106{
2107 int rval;
2108
2109 rval = QLA_SUCCESS;
2110 ha->srb_mempool = mempool_create(SRB_MIN_REQ, mempool_alloc_slab,
2111 mempool_free_slab, srb_cachep);
2112 if (ha->srb_mempool == NULL) {
2113 qla_printk(KERN_INFO, ha, "Unable to allocate SRB mempool.\n");
2114 rval = QLA_FUNCTION_FAILED;
2115 }
2116 return (rval);
2117}
2118
2119/*
2120 * This routine frees all adapter allocated memory.
fa2a1ce5 2121 *
1da177e4
LT		 2122 */
2123static void
fa2a1ce5 2124qla2x00_free_sp_pool( scsi_qla_host_t *ha)
1da177e4
LT		 2125{
2126 if (ha->srb_mempool) {
2127 mempool_destroy(ha->srb_mempool);
2128 ha->srb_mempool = NULL;
2129 }
2130}
2131
2132/**************************************************************************
2133* qla2x00_do_dpc
2134* This kernel thread is a task that is schedule by the interrupt handler
2135* to perform the background processing for interrupts.
2136*
2137* Notes:
2138* This task always run in the context of a kernel thread. It
2139* is kick-off by the driver's detect code and starts up
2140* up one per adapter. It immediately goes to sleep and waits for
2141* some fibre event. When either the interrupt handler or
2142* the timer routine detects a event it will one of the task
2143* bits then wake us up.
2144**************************************************************************/
2145static int
2146qla2x00_do_dpc(void *data)
2147{
2148 DECLARE_MUTEX_LOCKED(sem);
2149 scsi_qla_host_t *ha;
2150 fc_port_t *fcport;
1da177e4 2151 uint8_t status;
1da177e4 2152 uint16_t next_loopid;
1da177e4
LT		 2153
2154 ha = (scsi_qla_host_t *)data;
2155
2156 lock_kernel();
2157
2158 daemonize("%s_dpc", ha->host_str);
2159 allow_signal(SIGHUP);
2160
2161 ha->dpc_wait = &sem;
2162
2163 set_user_nice(current, -20);
2164
2165 unlock_kernel();
2166
2167 complete(&ha->dpc_inited);
2168
2169 while (1) {
2170 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
2171
2172 if (down_interruptible(&sem))
2173 break;
2174
2175 if (ha->dpc_should_die)
2176 break;
2177
2178 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
2179
2180 /* Initialization not yet finished. Don't do anything yet. */
2181 if (!ha->flags.init_done || ha->dpc_active)
2182 continue;
2183
2184 DEBUG3(printk("scsi(%ld): DPC handler\n", ha->host_no));
2185
2186 ha->dpc_active = 1;
2187
1da177e4 2188 if (ha->flags.mbox_busy) {
1da177e4
LT		 2189 ha->dpc_active = 0;
2190 continue;
2191 }
2192
2193 if (test_and_clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) {
2194
2195 DEBUG(printk("scsi(%ld): dpc: sched "
2196 "qla2x00_abort_isp ha = %p\n",
2197 ha->host_no, ha));
2198 if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
2199 &ha->dpc_flags))) {
2200
2201 if (qla2x00_abort_isp(ha)) {
2202 /* failed. retry later */
2203 set_bit(ISP_ABORT_NEEDED,
2204 &ha->dpc_flags);
2205 }
2206 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2207 }
2208 DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
2209 ha->host_no));
2210 }
2211
d97994dc
AV		 2212 if (test_and_clear_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags))
2213 qla2x00_update_fcports(ha);
2214
91ca7b01
AV		 2215 if (test_and_clear_bit(LOOP_RESET_NEEDED, &ha->dpc_flags)) {
2216 DEBUG(printk("scsi(%ld): dpc: sched loop_reset()\n",
2217 ha->host_no));
2218 qla2x00_loop_reset(ha);
2219 }
2220
1da177e4
LT		 2221 if (test_and_clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) &&
2222 (!(test_and_set_bit(RESET_ACTIVE, &ha->dpc_flags)))) {
2223
2224 DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
2225 ha->host_no));
2226
2227 qla2x00_rst_aen(ha);
2228 clear_bit(RESET_ACTIVE, &ha->dpc_flags);
2229 }
2230
2231 /* Retry each device up to login retry count */
2232 if ((test_and_clear_bit(RELOGIN_NEEDED, &ha->dpc_flags)) &&
2233 !test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) &&
2234 atomic_read(&ha->loop_state) != LOOP_DOWN) {
2235
2236 DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
2237 ha->host_no));
2238
2239 next_loopid = 0;
2240 list_for_each_entry(fcport, &ha->fcports, list) {
2241 if (fcport->port_type != FCT_TARGET)
2242 continue;
2243
2244 /*
2245 * If the port is not ONLINE then try to login
2246 * to it if we haven't run out of retries.
2247 */
2248 if (atomic_read(&fcport->state) != FCS_ONLINE &&
2249 fcport->login_retry) {
2250
2251 fcport->login_retry--;
2252 if (fcport->flags & FCF_FABRIC_DEVICE) {
2253 if (fcport->flags &
2254 FCF_TAPE_PRESENT)
abbd8870 2255 ha->isp_ops.fabric_logout(
1c7c6357
AV		 2256 ha, fcport->loop_id,
2257 fcport->d_id.b.domain,
2258 fcport->d_id.b.area,
2259 fcport->d_id.b.al_pa);
1da177e4
LT		 2260 status = qla2x00_fabric_login(
2261 ha, fcport, &next_loopid);
2262 } else
2263 status =
2264 qla2x00_local_device_login(
2265 ha, fcport->loop_id);
2266
2267 if (status == QLA_SUCCESS) {
2268 fcport->old_loop_id = fcport->loop_id;
2269
2270 DEBUG(printk("scsi(%ld): port login OK: logged in ID 0x%x\n",
2271 ha->host_no, fcport->loop_id));
fa2a1ce5 2272
052c40c8
AV		 2273 qla2x00_update_fcport(ha,
2274 fcport);
1da177e4
LT		 2275 } else if (status == 1) {
2276 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
2277 /* retry the login again */
2278 DEBUG(printk("scsi(%ld): Retrying %d login again loop_id 0x%x\n",
2279 ha->host_no,
2280 fcport->login_retry, fcport->loop_id));
2281 } else {
2282 fcport->login_retry = 0;
2283 }
2284 }
2285 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2286 break;
2287 }
2288 DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
2289 ha->host_no));
2290 }
2291
2292 if ((test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags)) &&
2293 atomic_read(&ha->loop_state) != LOOP_DOWN) {
2294
2295 clear_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags);
2296 DEBUG(printk("scsi(%ld): qla2x00_login_retry()\n",
2297 ha->host_no));
fa2a1ce5 2298
1da177e4
LT		 2299 set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
2300
2301 DEBUG(printk("scsi(%ld): qla2x00_login_retry - end\n",
2302 ha->host_no));
2303 }
2304
2305 if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
2306
2307 DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
2308 ha->host_no));
2309
2310 if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
2311 &ha->dpc_flags))) {
2312
2313 qla2x00_loop_resync(ha);
2314
2315 clear_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags);
2316 }
2317
2318 DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
2319 ha->host_no));
2320 }
2321
1da177e4
LT		 2322 if (test_and_clear_bit(FCPORT_RESCAN_NEEDED, &ha->dpc_flags)) {
2323
2324 DEBUG(printk("scsi(%ld): Rescan flagged fcports...\n",
2325 ha->host_no));
2326
2327 qla2x00_rescan_fcports(ha);
2328
2329 DEBUG(printk("scsi(%ld): Rescan flagged fcports..."
2330 "end.\n",
2331 ha->host_no));
2332 }
2333
1da177e4 2334 if (!ha->interrupts_on)
abbd8870 2335 ha->isp_ops.enable_intrs(ha);
1da177e4 2336
f6df144c
AV		 2337 if (test_and_clear_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags))
2338 ha->isp_ops.beacon_blink(ha);
2339
1da177e4
LT		 2340 ha->dpc_active = 0;
2341 } /* End of while(1) */
2342
2343 DEBUG(printk("scsi(%ld): DPC handler exiting\n", ha->host_no));
2344
2345 /*
2346 * Make sure that nobody tries to wake us up again.
2347 */
2348 ha->dpc_wait = NULL;
2349 ha->dpc_active = 0;
2350
2351 complete_and_exit(&ha->dpc_exited, 0);
2352}
2353
1da177e4
LT		 2354/*
2355* qla2x00_rst_aen
2356* Processes asynchronous reset.
2357*
2358* Input:
2359* ha = adapter block pointer.
2360*/
2361static void
fa2a1ce5 2362qla2x00_rst_aen(scsi_qla_host_t *ha)
1da177e4
LT		 2363{
2364 if (ha->flags.online && !ha->flags.reset_active &&
2365 !atomic_read(&ha->loop_down_timer) &&
2366 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) {
2367 do {
2368 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
2369
2370 /*
2371 * Issue marker command only when we are going to start
2372 * the I/O.
2373 */
2374 ha->marker_needed = 1;
2375 } while (!atomic_read(&ha->loop_down_timer) &&
2376 (test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags)));
2377 }
2378}
2379
f4f051eb
AV		 2380static void
2381qla2x00_sp_free_dma(scsi_qla_host_t *ha, srb_t *sp)
2382{
2383 struct scsi_cmnd *cmd = sp->cmd;
2384
2385 if (sp->flags & SRB_DMA_VALID) {
2386 if (cmd->use_sg) {
2387 dma_unmap_sg(&ha->pdev->dev, cmd->request_buffer,
2388 cmd->use_sg, cmd->sc_data_direction);
2389 } else if (cmd->request_bufflen) {
2390 dma_unmap_single(&ha->pdev->dev, sp->dma_handle,
2391 cmd->request_bufflen, cmd->sc_data_direction);
2392 }
2393 sp->flags &= ~SRB_DMA_VALID;
2394 }
fca29703 2395 CMD_SP(cmd) = NULL;
f4f051eb
AV		 2396}
2397
2398void
2399qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *sp)
2400{
2401 struct scsi_cmnd *cmd = sp->cmd;
2402
2403 qla2x00_sp_free_dma(ha, sp);
2404
f4f051eb
AV		 2405 mempool_free(sp, ha->srb_mempool);
2406
2407 cmd->scsi_done(cmd);
2408}
bdf79621 2409
1da177e4
LT		 2410/**************************************************************************
2411* qla2x00_timer
2412*
2413* Description:
2414* One second timer
2415*
2416* Context: Interrupt
2417***************************************************************************/
2418static void
2419qla2x00_timer(scsi_qla_host_t *ha)
2420{
1da177e4
LT		 2421 unsigned long cpu_flags = 0;
2422 fc_port_t *fcport;
1da177e4
LT		 2423 int start_dpc = 0;
2424 int index;
2425 srb_t *sp;
f4f051eb 2426 int t;
1da177e4
LT		 2427
2428 /*
2429 * Ports - Port down timer.
2430 *
2431 * Whenever, a port is in the LOST state we start decrementing its port
2432 * down timer every second until it reaches zero. Once it reaches zero
fa2a1ce5 2433 * the port it marked DEAD.
1da177e4
LT		 2434 */
2435 t = 0;
2436 list_for_each_entry(fcport, &ha->fcports, list) {
2437 if (fcport->port_type != FCT_TARGET)
2438 continue;
2439
2440 if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
2441
2442 if (atomic_read(&fcport->port_down_timer) == 0)
2443 continue;
2444
fa2a1ce5 2445 if (atomic_dec_and_test(&fcport->port_down_timer) != 0)
1da177e4 2446 atomic_set(&fcport->state, FCS_DEVICE_DEAD);
fa2a1ce5 2447
1da177e4 2448 DEBUG(printk("scsi(%ld): fcport-%d - port retry count: "
fca29703 2449 "%d remaining\n",
1da177e4
LT		 2450 ha->host_no,
2451 t, atomic_read(&fcport->port_down_timer)));
2452 }
2453 t++;
2454 } /* End of for fcport */
2455
1da177e4
LT		 2456
2457 /* Loop down handler. */
2458 if (atomic_read(&ha->loop_down_timer) > 0 &&
2459 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags)) && ha->flags.online) {
2460
2461 if (atomic_read(&ha->loop_down_timer) ==
2462 ha->loop_down_abort_time) {
2463
2464 DEBUG(printk("scsi(%ld): Loop Down - aborting the "
2465 "queues before time expire\n",
2466 ha->host_no));
2467
2468 if (!IS_QLA2100(ha) && ha->link_down_timeout)
fa2a1ce5 2469 atomic_set(&ha->loop_state, LOOP_DEAD);
1da177e4
LT		 2470
2471 /* Schedule an ISP abort to return any tape commands. */
2472 spin_lock_irqsave(&ha->hardware_lock, cpu_flags);
2473 for (index = 1; index < MAX_OUTSTANDING_COMMANDS;
2474 index++) {
bdf79621
AV		 2475 fc_port_t *sfcp;
2476
1da177e4
LT		 2477 sp = ha->outstanding_cmds[index];
2478 if (!sp)
2479 continue;
bdf79621
AV		 2480 sfcp = sp->fcport;
2481 if (!(sfcp->flags & FCF_TAPE_PRESENT))
1da177e4
LT		 2482 continue;
2483
2484 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2485 break;
2486 }
2487 spin_unlock_irqrestore(&ha->hardware_lock, cpu_flags);
2488
2489 set_bit(ABORT_QUEUES_NEEDED, &ha->dpc_flags);
2490 start_dpc++;
2491 }
2492
2493 /* if the loop has been down for 4 minutes, reinit adapter */
2494 if (atomic_dec_and_test(&ha->loop_down_timer) != 0) {
2495 DEBUG(printk("scsi(%ld): Loop down exceed 4 mins - "
2496 "restarting queues.\n",
2497 ha->host_no));
2498
2499 set_bit(RESTART_QUEUES_NEEDED, &ha->dpc_flags);
2500 start_dpc++;
2501
2502 if (!(ha->device_flags & DFLG_NO_CABLE)) {
2503 DEBUG(printk("scsi(%ld): Loop down - "
2504 "aborting ISP.\n",
2505 ha->host_no));
2506 qla_printk(KERN_WARNING, ha,
2507 "Loop down - aborting ISP.\n");
2508
2509 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2510 }
2511 }
fca29703 2512 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
1da177e4
LT		 2513 ha->host_no,
2514 atomic_read(&ha->loop_down_timer)));
2515 }
2516
f6df144c
AV		 2517 /* Check if beacon LED needs to be blinked */
2518 if (ha->beacon_blink_led == 1) {
2519 set_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags);
2520 start_dpc++;
2521 }
2522
1da177e4
LT		 2523 /* Schedule the DPC routine if needed */
2524 if ((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags) ||
2525 test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) ||
91ca7b01 2526 test_bit(LOOP_RESET_NEEDED, &ha->dpc_flags) ||
d97994dc 2527 test_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags) ||
1da177e4
LT		 2528 start_dpc ||
2529 test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags) ||
f4f051eb 2530 test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) ||
f6df144c 2531 test_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags) ||
1da177e4
LT		 2532 test_bit(RELOGIN_NEEDED, &ha->dpc_flags)) &&
2533 ha->dpc_wait && !ha->dpc_active) {
2534
2535 up(ha->dpc_wait);
2536 }
2537
2538 qla2x00_restart_timer(ha, WATCH_INTERVAL);
2539}
2540
1da177e4
LT		 2541/* XXX(hch): crude hack to emulate a down_timeout() */
2542int
2543qla2x00_down_timeout(struct semaphore *sema, unsigned long timeout)
2544{
fe74c71f
AV		 2545 const unsigned int step = 100; /* msecs */
2546 unsigned int iterations = jiffies_to_msecs(timeout)/100;
1da177e4
LT		 2547
2548 do {
2549 if (!down_trylock(sema))
2550 return 0;
fe74c71f 2551 if (msleep_interruptible(step))
1da177e4 2552 break;
fe74c71f 2553 } while (--iterations >= 0);
1da177e4
LT		 2554
2555 return -ETIMEDOUT;
2556}
2557
5433383e
AV		 2558#if defined(CONFIG_SCSI_QLA2XXX_EMBEDDED_FIRMWARE)
2559
2560#define qla2x00_release_firmware() do { } while (0)
331e3476
AV		 2561#define qla2x00_pci_module_init() (0)
2562#define qla2x00_pci_module_exit() do { } while (0)
fca29703 2563
5433383e
AV		 2564#else /* !defined(CONFIG_SCSI_QLA2XXX_EMBEDDED_FIRMWARE) */
2565
2566/* Firmware interface routines. */
2567
2568#define FW_BLOBS 6
2569#define FW_ISP21XX 0
2570#define FW_ISP22XX 1
2571#define FW_ISP2300 2
2572#define FW_ISP2322 3
2573#define FW_ISP63XX 4
2574#define FW_ISP24XX 5
2575
2576static DECLARE_MUTEX(qla_fw_lock);
2577
2578static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
2579 { .name = "ql2100_fw.bin", .segs = { 0x1000, 0 }, },
2580 { .name = "ql2200_fw.bin", .segs = { 0x1000, 0 }, },
2581 { .name = "ql2300_fw.bin", .segs = { 0x800, 0 }, },
2582 { .name = "ql2322_fw.bin", .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
2583 { .name = "ql6312_fw.bin", .segs = { 0x800, 0 }, },
2584 { .name = "ql2400_fw.bin", },
2585};
2586
2587struct fw_blob *
2588qla2x00_request_firmware(scsi_qla_host_t *ha)
2589{
2590 struct fw_blob *blob;
2591
2592 blob = NULL;
2593 if (IS_QLA2100(ha)) {
2594 blob = &qla_fw_blobs[FW_ISP21XX];
2595 } else if (IS_QLA2200(ha)) {
2596 blob = &qla_fw_blobs[FW_ISP22XX];
2597 } else if (IS_QLA2300(ha) || IS_QLA2312(ha)) {
2598 blob = &qla_fw_blobs[FW_ISP2300];
2599 } else if (IS_QLA2322(ha)) {
2600 blob = &qla_fw_blobs[FW_ISP2322];
2601 } else if (IS_QLA6312(ha) || IS_QLA6322(ha)) {
2602 blob = &qla_fw_blobs[FW_ISP63XX];
2603 } else if (IS_QLA24XX(ha)) {
2604 blob = &qla_fw_blobs[FW_ISP24XX];
2605 }
2606
2607 down(&qla_fw_lock);
2608 if (blob->fw)
2609 goto out;
2610
2611 if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
2612 DEBUG2(printk("scsi(%ld): Failed to load firmware image "
2613 "(%s).\n", ha->host_no, blob->name));
2614 blob->fw = NULL;
2615 blob = NULL;
2616 goto out;
2617 }
2618
2619out:
2620 up(&qla_fw_lock);
2621 return blob;
2622}
2623
2624static void
2625qla2x00_release_firmware(void)
2626{
2627 int idx;
2628
2629 down(&qla_fw_lock);
2630 for (idx = 0; idx < FW_BLOBS; idx++)
2631 if (qla_fw_blobs[idx].fw)
2632 release_firmware(qla_fw_blobs[idx].fw);
2633 up(&qla_fw_lock);
2634}
2635
2636static struct qla_board_info qla_board_tbl = {
2637 .drv_name = "qla2xxx",
2638};
2639
2640static struct pci_device_id qla2xxx_pci_tbl[] = {
2641 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100,
2642 PCI_ANY_ID, PCI_ANY_ID, },
2643 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200,
2644 PCI_ANY_ID, PCI_ANY_ID, },
2645 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300,
2646 PCI_ANY_ID, PCI_ANY_ID, },
2647 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312,
2648 PCI_ANY_ID, PCI_ANY_ID, },
2649 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322,
2650 PCI_ANY_ID, PCI_ANY_ID, },
2651 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312,
2652 PCI_ANY_ID, PCI_ANY_ID, },
2653 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322,
2654 PCI_ANY_ID, PCI_ANY_ID, },
2655 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422,
2656 PCI_ANY_ID, PCI_ANY_ID, },
2657 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432,
2658 PCI_ANY_ID, PCI_ANY_ID, },
2659 { 0 },
2660};
2661MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
2662
2663static int __devinit
2664qla2xxx_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
2665{
2666 return qla2x00_probe_one(pdev, &qla_board_tbl);
2667}
2668
2669static void __devexit
2670qla2xxx_remove_one(struct pci_dev *pdev)
2671{
2672 qla2x00_remove_one(pdev);
2673}
2674
fca29703
AV		 2675static struct pci_driver qla2xxx_pci_driver = {
2676 .name = "qla2xxx",
0a21ef1e
JB		 2677 .driver = {
2678 .owner = THIS_MODULE,
2679 },
fca29703
AV		 2680 .id_table = qla2xxx_pci_tbl,
2681 .probe = qla2xxx_probe_one,
2682 .remove = __devexit_p(qla2xxx_remove_one),
2683};
2684
331e3476
AV		 2685static inline int
2686qla2x00_pci_module_init(void)
2687{
2688 return pci_module_init(&qla2xxx_pci_driver);
2689}
2690
2691static inline void
2692qla2x00_pci_module_exit(void)
2693{
2694 pci_unregister_driver(&qla2xxx_pci_driver);
2695}
2696
2697#endif
2698
1da177e4
LT		 2699/**
2700 * qla2x00_module_init - Module initialization.
2701 **/
2702static int __init
2703qla2x00_module_init(void)
2704{
fca29703
AV		 2705 int ret = 0;
2706
1da177e4 2707 /* Allocate cache for SRBs. */
354d6b21 2708 srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
1da177e4
LT		 2709 SLAB_HWCACHE_ALIGN, NULL, NULL);
2710 if (srb_cachep == NULL) {
2711 printk(KERN_ERR
2712 "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
2713 return -ENOMEM;
2714 }
2715
2716 /* Derive version string. */
2717 strcpy(qla2x00_version_str, QLA2XXX_VERSION);
5433383e
AV		 2718#if defined(CONFIG_SCSI_QLA2XXX_EMBEDDED_FIRMWARE)
2719 strcat(qla2x00_version_str, "-fw");
2720#endif
1da177e4
LT		 2721#if DEBUG_QLA2100
2722 strcat(qla2x00_version_str, "-debug");
2723#endif
1c97a12a
AV		 2724 qla2xxx_transport_template =
2725 fc_attach_transport(&qla2xxx_transport_functions);
1da177e4
LT		 2726 if (!qla2xxx_transport_template)
2727 return -ENODEV;
2728
2729 printk(KERN_INFO "QLogic Fibre Channel HBA Driver\n");
331e3476 2730 ret = qla2x00_pci_module_init();
fca29703
AV		 2731 if (ret) {
2732 kmem_cache_destroy(srb_cachep);
2733 fc_release_transport(qla2xxx_transport_template);
2734 }
2735 return ret;
1da177e4
LT		 2736}
2737
2738/**
2739 * qla2x00_module_exit - Module cleanup.
2740 **/
2741static void __exit
2742qla2x00_module_exit(void)
2743{
331e3476 2744 qla2x00_pci_module_exit();
5433383e 2745 qla2x00_release_firmware();
354d6b21 2746 kmem_cache_destroy(srb_cachep);
1da177e4
LT		 2747 fc_release_transport(qla2xxx_transport_template);
2748}
2749
2750module_init(qla2x00_module_init);
2751module_exit(qla2x00_module_exit);
2752
2753MODULE_AUTHOR("QLogic Corporation");
2754MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
2755MODULE_LICENSE("GPL");
2756MODULE_VERSION(QLA2XXX_VERSION);
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