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[SCSI] mptbase: mpt_interrupt should return IRQ_NONE
[deliverable/linux.git] / drivers / scsi / qla2xxx / qla_os.c
CommitLineData
1da177e4 1/*
fa90c54f
AV		 2 * QLogic Fibre Channel HBA Driver
3 * Copyright (c) 2003-2005 QLogic Corporation
1da177e4 4 *
fa90c54f 5 * See LICENSE.qla2xxx for copyright and licensing details.
1da177e4
LT		 6 */
7#include "qla_def.h"
8
9#include <linux/moduleparam.h>
10#include <linux/vmalloc.h>
1da177e4 11#include <linux/delay.h>
39a11240 12#include <linux/kthread.h>
1da177e4
LT		 13
14#include <scsi/scsi_tcq.h>
15#include <scsi/scsicam.h>
16#include <scsi/scsi_transport.h>
17#include <scsi/scsi_transport_fc.h>
18
19/*
20 * Driver version
21 */
22char qla2x00_version_str[40];
23
24/*
25 * SRB allocation cache
26 */
354d6b21 27static kmem_cache_t *srb_cachep;
1da177e4
LT		 28
29/*
30 * Ioctl related information.
31 */
354d6b21 32static int num_hosts;
1da177e4
LT		 33
34int ql2xlogintimeout = 20;
35module_param(ql2xlogintimeout, int, S_IRUGO|S_IRUSR);
36MODULE_PARM_DESC(ql2xlogintimeout,
37 "Login timeout value in seconds.");
38
8482e118 39int qlport_down_retry = 30;
1da177e4
LT		 40module_param(qlport_down_retry, int, S_IRUGO|S_IRUSR);
41MODULE_PARM_DESC(qlport_down_retry,
42 "Maximum number of command retries to a port that returns"
43 "a PORT-DOWN status.");
44
1da177e4
LT		 45int ql2xplogiabsentdevice;
46module_param(ql2xplogiabsentdevice, int, S_IRUGO|S_IWUSR);
47MODULE_PARM_DESC(ql2xplogiabsentdevice,
48 "Option to enable PLOGI to devices that are not present after "
49 "a Fabric scan. This is needed for several broken switches."
50 "Default is 0 - no PLOGI. 1 - perfom PLOGI.");
51
1da177e4
LT		 52int ql2xloginretrycount = 0;
53module_param(ql2xloginretrycount, int, S_IRUGO|S_IRUSR);
54MODULE_PARM_DESC(ql2xloginretrycount,
55 "Specify an alternate value for the NVRAM login retry count.");
56
a7a167bf
AV		 57int ql2xallocfwdump = 1;
58module_param(ql2xallocfwdump, int, S_IRUGO|S_IRUSR);
59MODULE_PARM_DESC(ql2xallocfwdump,
60 "Option to enable allocation of memory for a firmware dump "
61 "during HBA initialization. Memory allocation requirements "
62 "vary by ISP type. Default is 1 - allocate memory.");
63
0181944f
AV		 64int extended_error_logging;
65module_param(extended_error_logging, int, S_IRUGO|S_IRUSR);
66MODULE_PARM_DESC(extended_error_logging,
67 "Option to enable extended error logging, "
68 "Default is 0 - no logging. 1 - log errors.");
69
1da177e4
LT		 70static void qla2x00_free_device(scsi_qla_host_t *);
71
72static void qla2x00_config_dma_addressing(scsi_qla_host_t *ha);
73
cca5335c
AV		 74int ql2xfdmienable;
75module_param(ql2xfdmienable, int, S_IRUGO|S_IRUSR);
76MODULE_PARM_DESC(ql2xfdmienable,
77 "Enables FDMI registratons "
78 "Default is 0 - no FDMI. 1 - perfom FDMI.");
79
1da177e4 80/*
fa2a1ce5 81 * SCSI host template entry points
1da177e4
LT		 82 */
83static int qla2xxx_slave_configure(struct scsi_device * device);
f4f051eb 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,
cb63067a 102 .name = QLA2XXX_DRIVER_NAME,
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 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,
cb63067a 131 .name = QLA2XXX_DRIVER_NAME,
fca29703
AV		 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 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
fca29703
AV		 343 sp->ha = ha;
344 sp->fcport = fcport;
345 sp->cmd = cmd;
346 sp->flags = 0;
347 CMD_SP(cmd) = (void *)sp;
348 cmd->scsi_done = done;
349
350 return sp;
351}
352
1da177e4 353static int
f4f051eb 354qla2x00_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
1da177e4 355{
f4f051eb 356 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
bdf79621 357 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
19a7b4ae 358 struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
f4f051eb 359 srb_t *sp;
360 int rval;
1da177e4 361
19a7b4ae
JSEC		 362 rval = fc_remote_port_chkready(rport);
363 if (rval) {
364 cmd->result = rval;
f4f051eb 365 goto qc_fail_command;
366 }
1da177e4 367
387f96b4 368 /* Close window on fcport/rport state-transitioning. */
369 if (!*(fc_port_t **)rport->dd_data) {
370 cmd->result = DID_IMM_RETRY << 16;
371 goto qc_fail_command;
372 }
373
f4f051eb 374 if (atomic_read(&fcport->state) != FCS_ONLINE) {
375 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
376 atomic_read(&ha->loop_state) == LOOP_DEAD) {
377 cmd->result = DID_NO_CONNECT << 16;
378 goto qc_fail_command;
379 }
380 goto qc_host_busy;
381 }
1da177e4
LT		 382
383 spin_unlock_irq(ha->host->host_lock);
384
fca29703
AV		 385 sp = qla2x00_get_new_sp(ha, fcport, cmd, done);
386 if (!sp)
f4f051eb 387 goto qc_host_busy_lock;
1da177e4 388
f4f051eb 389 rval = qla2x00_start_scsi(sp);
390 if (rval != QLA_SUCCESS)
391 goto qc_host_busy_free_sp;
1da177e4 392
f4f051eb 393 spin_lock_irq(ha->host->host_lock);
1da177e4 394
f4f051eb 395 return 0;
1da177e4 396
f4f051eb 397qc_host_busy_free_sp:
398 qla2x00_sp_free_dma(ha, sp);
f4f051eb 399 mempool_free(sp, ha->srb_mempool);
1da177e4 400
f4f051eb 401qc_host_busy_lock:
402 spin_lock_irq(ha->host->host_lock);
1da177e4 403
f4f051eb 404qc_host_busy:
405 return SCSI_MLQUEUE_HOST_BUSY;
1da177e4 406
f4f051eb 407qc_fail_command:
408 done(cmd);
1da177e4 409
f4f051eb 410 return 0;
1da177e4
LT		 411}
412
fca29703
AV		 413
414static int
415qla24xx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
416{
417 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
418 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
19a7b4ae 419 struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
fca29703
AV		 420 srb_t *sp;
421 int rval;
422
19a7b4ae
JSEC		 423 rval = fc_remote_port_chkready(rport);
424 if (rval) {
425 cmd->result = rval;
fca29703
AV		 426 goto qc24_fail_command;
427 }
428
387f96b4 429 /* Close window on fcport/rport state-transitioning. */
430 if (!*(fc_port_t **)rport->dd_data) {
431 cmd->result = DID_IMM_RETRY << 16;
432 goto qc24_fail_command;
433 }
434
fca29703
AV		 435 if (atomic_read(&fcport->state) != FCS_ONLINE) {
436 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
437 atomic_read(&ha->loop_state) == LOOP_DEAD) {
438 cmd->result = DID_NO_CONNECT << 16;
439 goto qc24_fail_command;
440 }
441 goto qc24_host_busy;
442 }
443
444 spin_unlock_irq(ha->host->host_lock);
445
446 sp = qla2x00_get_new_sp(ha, fcport, cmd, done);
447 if (!sp)
448 goto qc24_host_busy_lock;
449
450 rval = qla24xx_start_scsi(sp);
451 if (rval != QLA_SUCCESS)
452 goto qc24_host_busy_free_sp;
453
454 spin_lock_irq(ha->host->host_lock);
455
456 return 0;
457
458qc24_host_busy_free_sp:
459 qla2x00_sp_free_dma(ha, sp);
460 mempool_free(sp, ha->srb_mempool);
461
462qc24_host_busy_lock:
463 spin_lock_irq(ha->host->host_lock);
464
465qc24_host_busy:
466 return SCSI_MLQUEUE_HOST_BUSY;
467
468qc24_fail_command:
469 done(cmd);
470
471 return 0;
472}
473
474
1da177e4
LT		 475/*
476 * qla2x00_eh_wait_on_command
477 * Waits for the command to be returned by the Firmware for some
478 * max time.
479 *
480 * Input:
481 * ha = actual ha whose done queue will contain the command
482 * returned by firmware.
483 * cmd = Scsi Command to wait on.
484 * flag = Abort/Reset(Bus or Device Reset)
485 *
486 * Return:
487 * Not Found : 0
488 * Found : 1
489 */
490static int
491qla2x00_eh_wait_on_command(scsi_qla_host_t *ha, struct scsi_cmnd *cmd)
492{
fe74c71f
AV		 493#define ABORT_POLLING_PERIOD 1000
494#define ABORT_WAIT_ITER ((10 * 1000) / (ABORT_POLLING_PERIOD))
f4f051eb 495 unsigned long wait_iter = ABORT_WAIT_ITER;
496 int ret = QLA_SUCCESS;
1da177e4 497
f4f051eb 498 while (CMD_SP(cmd)) {
fe74c71f 499 msleep(ABORT_POLLING_PERIOD);
1da177e4 500
f4f051eb 501 if (--wait_iter)
502 break;
503 }
504 if (CMD_SP(cmd))
505 ret = QLA_FUNCTION_FAILED;
1da177e4 506
f4f051eb 507 return ret;
1da177e4
LT		 508}
509
510/*
511 * qla2x00_wait_for_hba_online
fa2a1ce5 512 * Wait till the HBA is online after going through
1da177e4
LT		 513 * <= MAX_RETRIES_OF_ISP_ABORT or
514 * finally HBA is disabled ie marked offline
515 *
516 * Input:
517 * ha - pointer to host adapter structure
fa2a1ce5
AV		 518 *
519 * Note:
1da177e4
LT		 520 * Does context switching-Release SPIN_LOCK
521 * (if any) before calling this routine.
522 *
523 * Return:
524 * Success (Adapter is online) : 0
525 * Failed (Adapter is offline/disabled) : 1
526 */
854165f4 527int
1da177e4
LT		 528qla2x00_wait_for_hba_online(scsi_qla_host_t *ha)
529{
fca29703
AV		 530 int return_status;
531 unsigned long wait_online;
1da177e4 532
fa2a1ce5 533 wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
1da177e4
LT		 534 while (((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) ||
535 test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags) ||
536 test_bit(ISP_ABORT_RETRY, &ha->dpc_flags) ||
537 ha->dpc_active) && time_before(jiffies, wait_online)) {
538
539 msleep(1000);
540 }
fa2a1ce5
AV		 541 if (ha->flags.online)
542 return_status = QLA_SUCCESS;
1da177e4
LT		 543 else
544 return_status = QLA_FUNCTION_FAILED;
545
546 DEBUG2(printk("%s return_status=%d\n",__func__,return_status));
547
548 return (return_status);
549}
550
551/*
552 * qla2x00_wait_for_loop_ready
553 * Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
fa2a1ce5 554 * to be in LOOP_READY state.
1da177e4
LT		 555 * Input:
556 * ha - pointer to host adapter structure
fa2a1ce5
AV		 557 *
558 * Note:
1da177e4
LT		 559 * Does context switching-Release SPIN_LOCK
560 * (if any) before calling this routine.
fa2a1ce5 561 *
1da177e4
LT		 562 *
563 * Return:
564 * Success (LOOP_READY) : 0
565 * Failed (LOOP_NOT_READY) : 1
566 */
fa2a1ce5 567static inline int
1da177e4
LT		 568qla2x00_wait_for_loop_ready(scsi_qla_host_t *ha)
569{
570 int return_status = QLA_SUCCESS;
571 unsigned long loop_timeout ;
572
573 /* wait for 5 min at the max for loop to be ready */
fa2a1ce5 574 loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ);
1da177e4
LT		 575
576 while ((!atomic_read(&ha->loop_down_timer) &&
577 atomic_read(&ha->loop_state) == LOOP_DOWN) ||
1da177e4 578 atomic_read(&ha->loop_state) != LOOP_READY) {
57680080
RA		 579 if (atomic_read(&ha->loop_state) == LOOP_DEAD) {
580 return_status = QLA_FUNCTION_FAILED;
581 break;
582 }
1da177e4
LT		 583 msleep(1000);
584 if (time_after_eq(jiffies, loop_timeout)) {
585 return_status = QLA_FUNCTION_FAILED;
586 break;
587 }
588 }
fa2a1ce5 589 return (return_status);
1da177e4
LT		 590}
591
592/**************************************************************************
593* qla2xxx_eh_abort
594*
595* Description:
596* The abort function will abort the specified command.
597*
598* Input:
599* cmd = Linux SCSI command packet to be aborted.
600*
601* Returns:
602* Either SUCCESS or FAILED.
603*
604* Note:
2ea00202 605* Only return FAILED if command not returned by firmware.
1da177e4
LT		 606**************************************************************************/
607int
608qla2xxx_eh_abort(struct scsi_cmnd *cmd)
609{
f4f051eb 610 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
611 srb_t *sp;
612 int ret, i;
613 unsigned int id, lun;
614 unsigned long serial;
18e144d3 615 unsigned long flags;
2ea00202 616 int wait = 0;
1da177e4 617
f4f051eb 618 if (!CMD_SP(cmd))
2ea00202 619 return SUCCESS;
1da177e4 620
2ea00202 621 ret = SUCCESS;
1da177e4 622
f4f051eb 623 id = cmd->device->id;
624 lun = cmd->device->lun;
625 serial = cmd->serial_number;
1da177e4 626
f4f051eb 627 /* Check active list for command command. */
18e144d3 628 spin_lock_irqsave(&ha->hardware_lock, flags);
f4f051eb 629 for (i = 1; i < MAX_OUTSTANDING_COMMANDS; i++) {
630 sp = ha->outstanding_cmds[i];
1da177e4 631
f4f051eb 632 if (sp == NULL)
633 continue;
1da177e4 634
f4f051eb 635 if (sp->cmd != cmd)
636 continue;
1da177e4 637
75bc4190
AV		 638 DEBUG2(printk("%s(%ld): aborting sp %p from RISC. pid=%ld.\n",
639 __func__, ha->host_no, sp, serial));
744f11fd 640 DEBUG3(qla2x00_print_scsi_cmd(cmd));
1da177e4 641
18e144d3 642 spin_unlock_irqrestore(&ha->hardware_lock, flags);
abbd8870 643 if (ha->isp_ops.abort_command(ha, sp)) {
f4f051eb 644 DEBUG2(printk("%s(%ld): abort_command "
645 "mbx failed.\n", __func__, ha->host_no));
646 } else {
647 DEBUG3(printk("%s(%ld): abort_command "
648 "mbx success.\n", __func__, ha->host_no));
2ea00202 649 wait = 1;
f4f051eb 650 }
18e144d3 651 spin_lock_irqsave(&ha->hardware_lock, flags);
1da177e4 652
f4f051eb 653 break;
654 }
18e144d3 655 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1da177e4 656
f4f051eb 657 /* Wait for the command to be returned. */
2ea00202 658 if (wait) {
f4f051eb 659 if (qla2x00_eh_wait_on_command(ha, cmd) != QLA_SUCCESS) {
fa2a1ce5 660 qla_printk(KERN_ERR, ha,
f4f051eb 661 "scsi(%ld:%d:%d): Abort handler timed out -- %lx "
662 "%x.\n", ha->host_no, id, lun, serial, ret);
2ea00202 663 ret = FAILED;
f4f051eb 664 }
1da177e4 665 }
1da177e4 666
fa2a1ce5 667 qla_printk(KERN_INFO, ha,
2ea00202
MR		 668 "scsi(%ld:%d:%d): Abort command issued -- %d %lx %x.\n",
669 ha->host_no, id, lun, wait, serial, ret);
1da177e4 670
f4f051eb 671 return ret;
672}
1da177e4 673
f4f051eb 674/**************************************************************************
675* qla2x00_eh_wait_for_pending_target_commands
676*
677* Description:
678* Waits for all the commands to come back from the specified target.
679*
680* Input:
681* ha - pointer to scsi_qla_host structure.
fa2a1ce5 682* t - target
f4f051eb 683* Returns:
684* Either SUCCESS or FAILED.
685*
686* Note:
687**************************************************************************/
688static int
689qla2x00_eh_wait_for_pending_target_commands(scsi_qla_host_t *ha, unsigned int t)
690{
691 int cnt;
692 int status;
693 srb_t *sp;
694 struct scsi_cmnd *cmd;
18e144d3 695 unsigned long flags;
1da177e4 696
f4f051eb 697 status = 0;
1da177e4
LT		 698
699 /*
f4f051eb 700 * Waiting for all commands for the designated target in the active
701 * array
1da177e4
LT		 702 */
703 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
18e144d3 704 spin_lock_irqsave(&ha->hardware_lock, flags);
1da177e4
LT		 705 sp = ha->outstanding_cmds[cnt];
706 if (sp) {
707 cmd = sp->cmd;
18e144d3 708 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1da177e4
LT		 709 if (cmd->device->id == t) {
710 if (!qla2x00_eh_wait_on_command(ha, cmd)) {
711 status = 1;
712 break;
713 }
714 }
f4f051eb 715 } else {
18e144d3 716 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1da177e4
LT		 717 }
718 }
719 return (status);
720}
721
722
723/**************************************************************************
724* qla2xxx_eh_device_reset
725*
726* Description:
727* The device reset function will reset the target and abort any
728* executing commands.
729*
730* NOTE: The use of SP is undefined within this context. Do *NOT*
fa2a1ce5 731* attempt to use this value, even if you determine it is
1da177e4
LT		 732* non-null.
733*
734* Input:
735* cmd = Linux SCSI command packet of the command that cause the
736* bus device reset.
737*
738* Returns:
739* SUCCESS/FAILURE (defined as macro in scsi.h).
740*
741**************************************************************************/
742int
743qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
744{
f4f051eb 745 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
bdf79621 746 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
f4f051eb 747 srb_t *sp;
748 int ret;
749 unsigned int id, lun;
750 unsigned long serial;
1da177e4 751
f4f051eb 752 ret = FAILED;
1da177e4 753
f4f051eb 754 id = cmd->device->id;
755 lun = cmd->device->lun;
756 serial = cmd->serial_number;
1da177e4 757
f4f051eb 758 sp = (srb_t *) CMD_SP(cmd);
bdf79621 759 if (!sp || !fcport)
f4f051eb 760 return ret;
1da177e4
LT		 761
762 qla_printk(KERN_INFO, ha,
f4f051eb 763 "scsi(%ld:%d:%d): DEVICE RESET ISSUED.\n", ha->host_no, id, lun);
1da177e4 764
94d0e7b8 765 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
1da177e4 766 goto eh_dev_reset_done;
1da177e4
LT		 767
768 if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
f4f051eb 769 if (qla2x00_device_reset(ha, fcport) == 0)
770 ret = SUCCESS;
1da177e4
LT		 771
772#if defined(LOGOUT_AFTER_DEVICE_RESET)
f4f051eb 773 if (ret == SUCCESS) {
774 if (fcport->flags & FC_FABRIC_DEVICE) {
abbd8870 775 ha->isp_ops.fabric_logout(ha, fcport->loop_id);
d97994dc 776 qla2x00_mark_device_lost(ha, fcport, 0, 0);
1da177e4
LT		 777 }
778 }
779#endif
780 } else {
781 DEBUG2(printk(KERN_INFO
744f11fd 782 "%s failed: loop not ready\n",__func__));
1da177e4
LT		 783 }
784
f4f051eb 785 if (ret == FAILED) {
1da177e4
LT		 786 DEBUG3(printk("%s(%ld): device reset failed\n",
787 __func__, ha->host_no));
788 qla_printk(KERN_INFO, ha, "%s: device reset failed\n",
789 __func__);
790
791 goto eh_dev_reset_done;
792 }
793
9a41a62b
AV		 794 /* Flush outstanding commands. */
795 if (qla2x00_eh_wait_for_pending_target_commands(ha, id))
796 ret = FAILED;
797 if (ret == FAILED) {
798 DEBUG3(printk("%s(%ld): failed while waiting for commands\n",
799 __func__, ha->host_no));
800 qla_printk(KERN_INFO, ha,
801 "%s: failed while waiting for commands\n", __func__);
802 } else
803 qla_printk(KERN_INFO, ha,
804 "scsi(%ld:%d:%d): DEVICE RESET SUCCEEDED.\n", ha->host_no,
805 id, lun);
28f22b03 806 eh_dev_reset_done:
f4f051eb 807 return ret;
1da177e4
LT		 808}
809
810/**************************************************************************
811* qla2x00_eh_wait_for_pending_commands
812*
813* Description:
814* Waits for all the commands to come back from the specified host.
815*
816* Input:
817* ha - pointer to scsi_qla_host structure.
818*
819* Returns:
820* 1 : SUCCESS
821* 0 : FAILED
822*
823* Note:
824**************************************************************************/
825static int
826qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *ha)
827{
828 int cnt;
829 int status;
830 srb_t *sp;
831 struct scsi_cmnd *cmd;
18e144d3 832 unsigned long flags;
1da177e4
LT		 833
834 status = 1;
835
836 /*
837 * Waiting for all commands for the designated target in the active
838 * array
839 */
840 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
18e144d3 841 spin_lock_irqsave(&ha->hardware_lock, flags);
1da177e4
LT		 842 sp = ha->outstanding_cmds[cnt];
843 if (sp) {
844 cmd = sp->cmd;
18e144d3 845 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1da177e4
LT		 846 status = qla2x00_eh_wait_on_command(ha, cmd);
847 if (status == 0)
848 break;
849 }
850 else {
18e144d3 851 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1da177e4
LT		 852 }
853 }
854 return (status);
855}
856
857
858/**************************************************************************
859* qla2xxx_eh_bus_reset
860*
861* Description:
862* The bus reset function will reset the bus and abort any executing
863* commands.
864*
865* Input:
866* cmd = Linux SCSI command packet of the command that cause the
867* bus reset.
868*
869* Returns:
870* SUCCESS/FAILURE (defined as macro in scsi.h).
871*
872**************************************************************************/
873int
874qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
875{
f4f051eb 876 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
bdf79621 877 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
1da177e4 878 srb_t *sp;
f4f051eb 879 int ret;
880 unsigned int id, lun;
881 unsigned long serial;
882
883 ret = FAILED;
884
885 id = cmd->device->id;
886 lun = cmd->device->lun;
887 serial = cmd->serial_number;
1da177e4 888
1da177e4 889 sp = (srb_t *) CMD_SP(cmd);
bdf79621 890 if (!sp || !fcport)
f4f051eb 891 return ret;
1da177e4
LT		 892
893 qla_printk(KERN_INFO, ha,
f4f051eb 894 "scsi(%ld:%d:%d): LOOP RESET ISSUED.\n", ha->host_no, id, lun);
1da177e4 895
1da177e4
LT		 896 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS) {
897 DEBUG2(printk("%s failed:board disabled\n",__func__));
f4f051eb 898 goto eh_bus_reset_done;
1da177e4
LT		 899 }
900
901 if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
f4f051eb 902 if (qla2x00_loop_reset(ha) == QLA_SUCCESS)
903 ret = SUCCESS;
1da177e4 904 }
f4f051eb 905 if (ret == FAILED)
906 goto eh_bus_reset_done;
1da177e4 907
9a41a62b
AV		 908 /* Flush outstanding commands. */
909 if (!qla2x00_eh_wait_for_pending_commands(ha))
910 ret = FAILED;
1da177e4 911
f4f051eb 912eh_bus_reset_done:
1da177e4 913 qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
f4f051eb 914 (ret == FAILED) ? "failed" : "succeded");
1da177e4 915
f4f051eb 916 return ret;
1da177e4
LT		 917}
918
919/**************************************************************************
920* qla2xxx_eh_host_reset
921*
922* Description:
923* The reset function will reset the Adapter.
924*
925* Input:
926* cmd = Linux SCSI command packet of the command that cause the
927* adapter reset.
928*
929* Returns:
930* Either SUCCESS or FAILED.
931*
932* Note:
933**************************************************************************/
934int
935qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
936{
f4f051eb 937 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
bdf79621 938 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
f4f051eb 939 srb_t *sp;
940 int ret;
941 unsigned int id, lun;
942 unsigned long serial;
1da177e4 943
f4f051eb 944 ret = FAILED;
945
946 id = cmd->device->id;
947 lun = cmd->device->lun;
948 serial = cmd->serial_number;
949
950 sp = (srb_t *) CMD_SP(cmd);
bdf79621 951 if (!sp || !fcport)
f4f051eb 952 return ret;
1da177e4 953
1da177e4 954 qla_printk(KERN_INFO, ha,
f4f051eb 955 "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", ha->host_no, id, lun);
1da177e4 956
1da177e4 957 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
f4f051eb 958 goto eh_host_reset_lock;
1da177e4
LT		 959
960 /*
961 * Fixme-may be dpc thread is active and processing
fa2a1ce5 962 * loop_resync,so wait a while for it to
1da177e4
LT		 963 * be completed and then issue big hammer.Otherwise
964 * it may cause I/O failure as big hammer marks the
965 * devices as lost kicking of the port_down_timer
966 * while dpc is stuck for the mailbox to complete.
967 */
1da177e4
LT		 968 qla2x00_wait_for_loop_ready(ha);
969 set_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
970 if (qla2x00_abort_isp(ha)) {
971 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
972 /* failed. schedule dpc to try */
973 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
974
975 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
f4f051eb 976 goto eh_host_reset_lock;
fa2a1ce5 977 }
1da177e4
LT		 978 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
979
1da177e4 980 /* Waiting for our command in done_queue to be returned to OS.*/
f4f051eb 981 if (qla2x00_eh_wait_for_pending_commands(ha))
982 ret = SUCCESS;
1da177e4 983
f4f051eb 984eh_host_reset_lock:
f4f051eb 985 qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
986 (ret == FAILED) ? "failed" : "succeded");
1da177e4 987
f4f051eb 988 return ret;
989}
1da177e4
LT		 990
991/*
992* qla2x00_loop_reset
993* Issue loop reset.
994*
995* Input:
996* ha = adapter block pointer.
997*
998* Returns:
999* 0 = success
1000*/
1001static int
1002qla2x00_loop_reset(scsi_qla_host_t *ha)
1003{
1004 int status = QLA_SUCCESS;
bdf79621 1005 struct fc_port *fcport;
1da177e4
LT		 1006
1007 if (ha->flags.enable_lip_reset) {
1008 status = qla2x00_lip_reset(ha);
1009 }
1010
1011 if (status == QLA_SUCCESS && ha->flags.enable_target_reset) {
bdf79621 1012 list_for_each_entry(fcport, &ha->fcports, list) {
1013 if (fcport->port_type != FCT_TARGET)
1da177e4
LT		 1014 continue;
1015
c00c72ae 1016 status = qla2x00_device_reset(ha, fcport);
bdf79621 1017 if (status != QLA_SUCCESS)
1da177e4 1018 break;
1da177e4
LT		 1019 }
1020 }
1021
1022 if (status == QLA_SUCCESS &&
fa2a1ce5 1023 ((!ha->flags.enable_target_reset &&
1da177e4
LT		 1024 !ha->flags.enable_lip_reset) ||
1025 ha->flags.enable_lip_full_login)) {
1026
1027 status = qla2x00_full_login_lip(ha);
1028 }
1029
1030 /* Issue marker command only when we are going to start the I/O */
1031 ha->marker_needed = 1;
1032
1033 if (status) {
1034 /* Empty */
1035 DEBUG2_3(printk("%s(%ld): **** FAILED ****\n",
1036 __func__,
744f11fd 1037 ha->host_no));
1da177e4
LT		 1038 } else {
1039 /* Empty */
1040 DEBUG3(printk("%s(%ld): exiting normally.\n",
1041 __func__,
744f11fd 1042 ha->host_no));
1da177e4
LT		 1043 }
1044
1045 return(status);
1046}
1047
1048/*
1049 * qla2x00_device_reset
1050 * Issue bus device reset message to the target.
1051 *
1052 * Input:
1053 * ha = adapter block pointer.
1054 * t = SCSI ID.
1055 * TARGET_QUEUE_LOCK must be released.
1056 * ADAPTER_STATE_LOCK must be released.
1057 *
1058 * Context:
1059 * Kernel context.
1060 */
1061static int
1062qla2x00_device_reset(scsi_qla_host_t *ha, fc_port_t *reset_fcport)
1063{
1064 /* Abort Target command will clear Reservation */
abbd8870 1065 return ha->isp_ops.abort_target(reset_fcport);
1da177e4
LT		 1066}
1067
f4f051eb 1068static int
1069qla2xxx_slave_alloc(struct scsi_device *sdev)
1da177e4 1070{
bdf79621 1071 struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1da177e4 1072
19a7b4ae 1073 if (!rport || fc_remote_port_chkready(rport))
f4f051eb 1074 return -ENXIO;
bdf79621 1075
19a7b4ae 1076 sdev->hostdata = *(fc_port_t **)rport->dd_data;
1da177e4 1077
f4f051eb 1078 return 0;
1079}
1da177e4 1080
f4f051eb 1081static int
1082qla2xxx_slave_configure(struct scsi_device *sdev)
1083{
8482e118 1084 scsi_qla_host_t *ha = to_qla_host(sdev->host);
1085 struct fc_rport *rport = starget_to_rport(sdev->sdev_target);
1086
f4f051eb 1087 if (sdev->tagged_supported)
1088 scsi_activate_tcq(sdev, 32);
1089 else
1090 scsi_deactivate_tcq(sdev, 32);
1da177e4 1091
8482e118 1092 rport->dev_loss_tmo = ha->port_down_retry_count + 5;
1093
f4f051eb 1094 return 0;
1095}
1da177e4 1096
f4f051eb 1097static void
1098qla2xxx_slave_destroy(struct scsi_device *sdev)
1099{
1100 sdev->hostdata = NULL;
1da177e4
LT		 1101}
1102
ce7e4af7
AV		 1103static int
1104qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth)
1105{
1106 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1107 return sdev->queue_depth;
1108}
1109
1110static int
1111qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1112{
1113 if (sdev->tagged_supported) {
1114 scsi_set_tag_type(sdev, tag_type);
1115 if (tag_type)
1116 scsi_activate_tcq(sdev, sdev->queue_depth);
1117 else
1118 scsi_deactivate_tcq(sdev, sdev->queue_depth);
1119 } else
1120 tag_type = 0;
1121
1122 return tag_type;
1123}
1124
1da177e4
LT		 1125/**
1126 * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1127 * @ha: HA context
1128 *
1129 * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1130 * supported addressing method.
1131 */
1132static void
1133qla2x00_config_dma_addressing(scsi_qla_host_t *ha)
1134{
7524f9b9 1135 /* Assume a 32bit DMA mask. */
1da177e4 1136 ha->flags.enable_64bit_addressing = 0;
1da177e4 1137
7524f9b9
AV		 1138 if (!dma_set_mask(&ha->pdev->dev, DMA_64BIT_MASK)) {
1139 /* Any upper-dword bits set? */
1140 if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1141 !pci_set_consistent_dma_mask(ha->pdev, DMA_64BIT_MASK)) {
1142 /* Ok, a 64bit DMA mask is applicable. */
1da177e4 1143 ha->flags.enable_64bit_addressing = 1;
abbd8870
AV		 1144 ha->isp_ops.calc_req_entries = qla2x00_calc_iocbs_64;
1145 ha->isp_ops.build_iocbs = qla2x00_build_scsi_iocbs_64;
7524f9b9 1146 return;
1da177e4 1147 }
1da177e4 1148 }
7524f9b9
AV		 1149
1150 dma_set_mask(&ha->pdev->dev, DMA_32BIT_MASK);
1151 pci_set_consistent_dma_mask(ha->pdev, DMA_32BIT_MASK);
1da177e4
LT		 1152}
1153
ea5b6382 1154static inline void
1155qla2x00_set_isp_flags(scsi_qla_host_t *ha)
1156{
1157 ha->device_type = DT_EXTENDED_IDS;
1158 switch (ha->pdev->device) {
1159 case PCI_DEVICE_ID_QLOGIC_ISP2100:
1160 ha->device_type |= DT_ISP2100;
1161 ha->device_type &= ~DT_EXTENDED_IDS;
441d1072 1162 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
ea5b6382 1163 break;
1164 case PCI_DEVICE_ID_QLOGIC_ISP2200:
1165 ha->device_type |= DT_ISP2200;
1166 ha->device_type &= ~DT_EXTENDED_IDS;
441d1072 1167 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
ea5b6382 1168 break;
1169 case PCI_DEVICE_ID_QLOGIC_ISP2300:
1170 ha->device_type |= DT_ISP2300;
4a59f71d 1171 ha->device_type |= DT_ZIO_SUPPORTED;
441d1072 1172 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
ea5b6382 1173 break;
1174 case PCI_DEVICE_ID_QLOGIC_ISP2312:
1175 ha->device_type |= DT_ISP2312;
4a59f71d 1176 ha->device_type |= DT_ZIO_SUPPORTED;
441d1072 1177 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
ea5b6382 1178 break;
1179 case PCI_DEVICE_ID_QLOGIC_ISP2322:
1180 ha->device_type |= DT_ISP2322;
4a59f71d 1181 ha->device_type |= DT_ZIO_SUPPORTED;
ea5b6382 1182 if (ha->pdev->subsystem_vendor == 0x1028 &&
1183 ha->pdev->subsystem_device == 0x0170)
1184 ha->device_type |= DT_OEM_001;
441d1072 1185 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
ea5b6382 1186 break;
1187 case PCI_DEVICE_ID_QLOGIC_ISP6312:
1188 ha->device_type |= DT_ISP6312;
441d1072 1189 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
ea5b6382 1190 break;
1191 case PCI_DEVICE_ID_QLOGIC_ISP6322:
1192 ha->device_type |= DT_ISP6322;
441d1072 1193 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
ea5b6382 1194 break;
1195 case PCI_DEVICE_ID_QLOGIC_ISP2422:
1196 ha->device_type |= DT_ISP2422;
4a59f71d 1197 ha->device_type |= DT_ZIO_SUPPORTED;
441d1072 1198 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
ea5b6382 1199 break;
1200 case PCI_DEVICE_ID_QLOGIC_ISP2432:
1201 ha->device_type |= DT_ISP2432;
4a59f71d 1202 ha->device_type |= DT_ZIO_SUPPORTED;
441d1072 1203 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
ea5b6382 1204 break;
044cc6c8 1205 case PCI_DEVICE_ID_QLOGIC_ISP5422:
1206 ha->device_type |= DT_ISP5422;
441d1072 1207 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
ea5b6382 1208 break;
044cc6c8 1209 case PCI_DEVICE_ID_QLOGIC_ISP5432:
1210 ha->device_type |= DT_ISP5432;
441d1072 1211 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
ea5b6382 1212 break;
1213 }
1214}
1215
1da177e4
LT		 1216static int
1217qla2x00_iospace_config(scsi_qla_host_t *ha)
1218{
1219 unsigned long pio, pio_len, pio_flags;
1220 unsigned long mmio, mmio_len, mmio_flags;
1221
1222 /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1223 pio = pci_resource_start(ha->pdev, 0);
1224 pio_len = pci_resource_len(ha->pdev, 0);
1225 pio_flags = pci_resource_flags(ha->pdev, 0);
1226 if (pio_flags & IORESOURCE_IO) {
1227 if (pio_len < MIN_IOBASE_LEN) {
1228 qla_printk(KERN_WARNING, ha,
1229 "Invalid PCI I/O region size (%s)...\n",
1230 pci_name(ha->pdev));
1231 pio = 0;
1232 }
1233 } else {
1234 qla_printk(KERN_WARNING, ha,
1235 "region #0 not a PIO resource (%s)...\n",
1236 pci_name(ha->pdev));
1237 pio = 0;
1238 }
1239
1240 /* Use MMIO operations for all accesses. */
1241 mmio = pci_resource_start(ha->pdev, 1);
1242 mmio_len = pci_resource_len(ha->pdev, 1);
1243 mmio_flags = pci_resource_flags(ha->pdev, 1);
1244
1245 if (!(mmio_flags & IORESOURCE_MEM)) {
1246 qla_printk(KERN_ERR, ha,
1247 "region #0 not an MMIO resource (%s), aborting\n",
1248 pci_name(ha->pdev));
1249 goto iospace_error_exit;
1250 }
1251 if (mmio_len < MIN_IOBASE_LEN) {
1252 qla_printk(KERN_ERR, ha,
1253 "Invalid PCI mem region size (%s), aborting\n",
1254 pci_name(ha->pdev));
1255 goto iospace_error_exit;
1256 }
1257
cb63067a 1258 if (pci_request_regions(ha->pdev, QLA2XXX_DRIVER_NAME)) {
1da177e4
LT		 1259 qla_printk(KERN_WARNING, ha,
1260 "Failed to reserve PIO/MMIO regions (%s)\n",
1261 pci_name(ha->pdev));
1262
1263 goto iospace_error_exit;
1264 }
1265
1266 ha->pio_address = pio;
1267 ha->pio_length = pio_len;
1268 ha->iobase = ioremap(mmio, MIN_IOBASE_LEN);
1269 if (!ha->iobase) {
1270 qla_printk(KERN_ERR, ha,
1271 "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
1272
1273 goto iospace_error_exit;
1274 }
1275
1276 return (0);
1277
1278iospace_error_exit:
1279 return (-ENOMEM);
1280}
1281
abbd8870
AV		 1282static void
1283qla2x00_enable_intrs(scsi_qla_host_t *ha)
1284{
1285 unsigned long flags = 0;
3d71644c 1286 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
abbd8870
AV		 1287
1288 spin_lock_irqsave(&ha->hardware_lock, flags);
1289 ha->interrupts_on = 1;
1290 /* enable risc and host interrupts */
1291 WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1292 RD_REG_WORD(&reg->ictrl);
1293 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1294
1295}
1296
1297static void
1298qla2x00_disable_intrs(scsi_qla_host_t *ha)
1299{
1300 unsigned long flags = 0;
3d71644c 1301 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
abbd8870
AV		 1302
1303 spin_lock_irqsave(&ha->hardware_lock, flags);
1304 ha->interrupts_on = 0;
1305 /* disable risc and host interrupts */
1306 WRT_REG_WORD(&reg->ictrl, 0);
1307 RD_REG_WORD(&reg->ictrl);
1308 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1309}
1310
fca29703
AV		 1311static void
1312qla24xx_enable_intrs(scsi_qla_host_t *ha)
1313{
1314 unsigned long flags = 0;
1315 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1316
1317 spin_lock_irqsave(&ha->hardware_lock, flags);
1318 ha->interrupts_on = 1;
1319 WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1320 RD_REG_DWORD(&reg->ictrl);
1321 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1322}
1323
1324static void
1325qla24xx_disable_intrs(scsi_qla_host_t *ha)
1326{
1327 unsigned long flags = 0;
1328 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1329
1330 spin_lock_irqsave(&ha->hardware_lock, flags);
1331 ha->interrupts_on = 0;
1332 WRT_REG_DWORD(&reg->ictrl, 0);
1333 RD_REG_DWORD(&reg->ictrl);
1334 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1335}
1336
1da177e4
LT		 1337/*
1338 * PCI driver interface
1339 */
7ee61397
AV		 1340static int __devinit
1341qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
1da177e4 1342{
a1541d5a 1343 int ret = -ENODEV;
fca29703 1344 device_reg_t __iomem *reg;
1da177e4
LT		 1345 struct Scsi_Host *host;
1346 scsi_qla_host_t *ha;
1347 unsigned long flags = 0;
1348 unsigned long wait_switch = 0;
1349 char pci_info[20];
1350 char fw_str[30];
8482e118 1351 fc_port_t *fcport;
5433383e 1352 struct scsi_host_template *sht;
1da177e4
LT		 1353
1354 if (pci_enable_device(pdev))
a1541d5a 1355 goto probe_out;
1da177e4 1356
5433383e
AV		 1357 sht = &qla2x00_driver_template;
1358 if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
1359 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432)
1360 sht = &qla24xx_driver_template;
1361 host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
1da177e4
LT		 1362 if (host == NULL) {
1363 printk(KERN_WARNING
1364 "qla2xxx: Couldn't allocate host from scsi layer!\n");
1365 goto probe_disable_device;
1366 }
1367
1368 /* Clear our data area */
1369 ha = (scsi_qla_host_t *)host->hostdata;
1370 memset(ha, 0, sizeof(scsi_qla_host_t));
1371
1372 ha->pdev = pdev;
1373 ha->host = host;
1374 ha->host_no = host->host_no;
cb63067a 1375 sprintf(ha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, ha->host_no);
1da177e4 1376
ea5b6382 1377 /* Set ISP-type information. */
1378 qla2x00_set_isp_flags(ha);
1379
1da177e4
LT		 1380 /* Configure PCI I/O space */
1381 ret = qla2x00_iospace_config(ha);
a1541d5a
AV		 1382 if (ret)
1383 goto probe_failed;
1da177e4 1384
1da177e4 1385 qla_printk(KERN_INFO, ha,
5433383e
AV		 1386 "Found an ISP%04X, irq %d, iobase 0x%p\n", pdev->device, pdev->irq,
1387 ha->iobase);
1da177e4
LT		 1388
1389 spin_lock_init(&ha->hardware_lock);
1390
1da177e4 1391 ha->prev_topology = 0;
fca29703 1392 ha->init_cb_size = sizeof(init_cb_t);
cca5335c 1393 ha->mgmt_svr_loop_id = MANAGEMENT_SERVER;
04414013 1394 ha->link_data_rate = LDR_UNKNOWN;
854165f4 1395 ha->optrom_size = OPTROM_SIZE_2300;
1da177e4 1396
abbd8870
AV		 1397 /* Assign ISP specific operations. */
1398 ha->isp_ops.pci_config = qla2100_pci_config;
1399 ha->isp_ops.reset_chip = qla2x00_reset_chip;
1400 ha->isp_ops.chip_diag = qla2x00_chip_diag;
1401 ha->isp_ops.config_rings = qla2x00_config_rings;
1402 ha->isp_ops.reset_adapter = qla2x00_reset_adapter;
1403 ha->isp_ops.nvram_config = qla2x00_nvram_config;
1404 ha->isp_ops.update_fw_options = qla2x00_update_fw_options;
0107109e 1405 ha->isp_ops.load_risc = qla2x00_load_risc;
abbd8870
AV		 1406 ha->isp_ops.pci_info_str = qla2x00_pci_info_str;
1407 ha->isp_ops.fw_version_str = qla2x00_fw_version_str;
1408 ha->isp_ops.intr_handler = qla2100_intr_handler;
1409 ha->isp_ops.enable_intrs = qla2x00_enable_intrs;
1410 ha->isp_ops.disable_intrs = qla2x00_disable_intrs;
1411 ha->isp_ops.abort_command = qla2x00_abort_command;
1412 ha->isp_ops.abort_target = qla2x00_abort_target;
1413 ha->isp_ops.fabric_login = qla2x00_login_fabric;
1414 ha->isp_ops.fabric_logout = qla2x00_fabric_logout;
1415 ha->isp_ops.calc_req_entries = qla2x00_calc_iocbs_32;
1416 ha->isp_ops.build_iocbs = qla2x00_build_scsi_iocbs_32;
1417 ha->isp_ops.prep_ms_iocb = qla2x00_prep_ms_iocb;
cca5335c 1418 ha->isp_ops.prep_ms_fdmi_iocb = qla2x00_prep_ms_fdmi_iocb;
459c5378
AV		 1419 ha->isp_ops.read_nvram = qla2x00_read_nvram_data;
1420 ha->isp_ops.write_nvram = qla2x00_write_nvram_data;
abbd8870 1421 ha->isp_ops.fw_dump = qla2100_fw_dump;
854165f4 1422 ha->isp_ops.read_optrom = qla2x00_read_optrom_data;
1423 ha->isp_ops.write_optrom = qla2x00_write_optrom_data;
1da177e4 1424 if (IS_QLA2100(ha)) {
354d6b21 1425 host->max_id = MAX_TARGETS_2100;
1da177e4
LT		 1426 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
1427 ha->request_q_length = REQUEST_ENTRY_CNT_2100;
1428 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1429 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1430 host->sg_tablesize = 32;
abbd8870 1431 ha->gid_list_info_size = 4;
1da177e4 1432 } else if (IS_QLA2200(ha)) {
354d6b21 1433 host->max_id = MAX_TARGETS_2200;
1da177e4
LT		 1434 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1435 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1436 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1437 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
abbd8870 1438 ha->gid_list_info_size = 4;
fca29703 1439 } else if (IS_QLA23XX(ha)) {
354d6b21 1440 host->max_id = MAX_TARGETS_2200;
1da177e4
LT		 1441 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1442 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1443 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1444 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
abbd8870
AV		 1445 ha->isp_ops.pci_config = qla2300_pci_config;
1446 ha->isp_ops.intr_handler = qla2300_intr_handler;
1447 ha->isp_ops.fw_dump = qla2300_fw_dump;
f6df144c 1448 ha->isp_ops.beacon_on = qla2x00_beacon_on;
1449 ha->isp_ops.beacon_off = qla2x00_beacon_off;
1450 ha->isp_ops.beacon_blink = qla2x00_beacon_blink;
abbd8870 1451 ha->gid_list_info_size = 6;
854165f4 1452 if (IS_QLA2322(ha) || IS_QLA6322(ha))
1453 ha->optrom_size = OPTROM_SIZE_2322;
044cc6c8 1454 } else if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
fca29703
AV		 1455 host->max_id = MAX_TARGETS_2200;
1456 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1457 ha->request_q_length = REQUEST_ENTRY_CNT_24XX;
1458 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1459 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1460 ha->init_cb_size = sizeof(struct init_cb_24xx);
cca5335c 1461 ha->mgmt_svr_loop_id = 10;
fca29703
AV		 1462 ha->isp_ops.pci_config = qla24xx_pci_config;
1463 ha->isp_ops.reset_chip = qla24xx_reset_chip;
1464 ha->isp_ops.chip_diag = qla24xx_chip_diag;
1465 ha->isp_ops.config_rings = qla24xx_config_rings;
1466 ha->isp_ops.reset_adapter = qla24xx_reset_adapter;
1467 ha->isp_ops.nvram_config = qla24xx_nvram_config;
1468 ha->isp_ops.update_fw_options = qla24xx_update_fw_options;
5433383e 1469 ha->isp_ops.load_risc = qla24xx_load_risc;
fca29703
AV		 1470 ha->isp_ops.pci_info_str = qla24xx_pci_info_str;
1471 ha->isp_ops.fw_version_str = qla24xx_fw_version_str;
1472 ha->isp_ops.intr_handler = qla24xx_intr_handler;
1473 ha->isp_ops.enable_intrs = qla24xx_enable_intrs;
1474 ha->isp_ops.disable_intrs = qla24xx_disable_intrs;
1475 ha->isp_ops.abort_command = qla24xx_abort_command;
1476 ha->isp_ops.abort_target = qla24xx_abort_target;
1477 ha->isp_ops.fabric_login = qla24xx_login_fabric;
1478 ha->isp_ops.fabric_logout = qla24xx_fabric_logout;
1479 ha->isp_ops.prep_ms_iocb = qla24xx_prep_ms_iocb;
cca5335c 1480 ha->isp_ops.prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb;
fca29703
AV		 1481 ha->isp_ops.read_nvram = qla24xx_read_nvram_data;
1482 ha->isp_ops.write_nvram = qla24xx_write_nvram_data;
1483 ha->isp_ops.fw_dump = qla24xx_fw_dump;
854165f4 1484 ha->isp_ops.read_optrom = qla24xx_read_optrom_data;
1485 ha->isp_ops.write_optrom = qla24xx_write_optrom_data;
f6df144c 1486 ha->isp_ops.beacon_on = qla24xx_beacon_on;
1487 ha->isp_ops.beacon_off = qla24xx_beacon_off;
1488 ha->isp_ops.beacon_blink = qla24xx_beacon_blink;
fca29703 1489 ha->gid_list_info_size = 8;
854165f4 1490 ha->optrom_size = OPTROM_SIZE_24XX;
1da177e4
LT		 1491 }
1492 host->can_queue = ha->request_q_length + 128;
1493
1494 /* load the F/W, read paramaters, and init the H/W */
1495 ha->instance = num_hosts;
1496
1497 init_MUTEX(&ha->mbx_cmd_sem);
1498 init_MUTEX_LOCKED(&ha->mbx_intr_sem);
1499
1500 INIT_LIST_HEAD(&ha->list);
1501 INIT_LIST_HEAD(&ha->fcports);
1da177e4
LT		 1502
1503 /*
1504 * These locks are used to prevent more than one CPU
1505 * from modifying the queue at the same time. The
1506 * higher level "host_lock" will reduce most
1507 * contention for these locks.
1508 */
1509 spin_lock_init(&ha->mbx_reg_lock);
1da177e4 1510
1da177e4
LT		 1511 qla2x00_config_dma_addressing(ha);
1512 if (qla2x00_mem_alloc(ha)) {
1513 qla_printk(KERN_WARNING, ha,
1514 "[ERROR] Failed to allocate memory for adapter\n");
1515
a1541d5a
AV		 1516 ret = -ENOMEM;
1517 goto probe_failed;
1da177e4
LT		 1518 }
1519
1520 if (qla2x00_initialize_adapter(ha) &&
1521 !(ha->device_flags & DFLG_NO_CABLE)) {
1522
1523 qla_printk(KERN_WARNING, ha,
1524 "Failed to initialize adapter\n");
1525
1526 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
1527 "Adapter flags %x.\n",
1528 ha->host_no, ha->device_flags));
1529
a1541d5a 1530 ret = -ENODEV;
1da177e4
LT		 1531 goto probe_failed;
1532 }
1533
1534 /*
1535 * Startup the kernel thread for this host adapter
1536 */
39a11240
CH		 1537 ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
1538 "%s_dpc", ha->host_str);
1539 if (IS_ERR(ha->dpc_thread)) {
1da177e4
LT		 1540 qla_printk(KERN_WARNING, ha,
1541 "Unable to start DPC thread!\n");
39a11240 1542 ret = PTR_ERR(ha->dpc_thread);
1da177e4
LT		 1543 goto probe_failed;
1544 }
1da177e4 1545
a1541d5a
AV		 1546 host->this_id = 255;
1547 host->cmd_per_lun = 3;
1548 host->unique_id = ha->instance;
1549 host->max_cmd_len = MAX_CMDSZ;
75bc4190 1550 host->max_channel = MAX_BUSES - 1;
a1541d5a
AV		 1551 host->max_lun = MAX_LUNS;
1552 host->transportt = qla2xxx_transport_template;
1553
fca29703 1554 ret = request_irq(pdev->irq, ha->isp_ops.intr_handler,
cb63067a 1555 SA_INTERRUPT|SA_SHIRQ, QLA2XXX_DRIVER_NAME, ha);
a1541d5a 1556 if (ret) {
1da177e4
LT		 1557 qla_printk(KERN_WARNING, ha,
1558 "Failed to reserve interrupt %d already in use.\n",
fca29703 1559 pdev->irq);
1da177e4
LT		 1560 goto probe_failed;
1561 }
fca29703 1562 host->irq = pdev->irq;
1da177e4
LT		 1563
1564 /* Initialized the timer */
1565 qla2x00_start_timer(ha, qla2x00_timer, WATCH_INTERVAL);
1566
1567 DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
1568 ha->host_no, ha));
1569
abbd8870 1570 ha->isp_ops.disable_intrs(ha);
1da177e4 1571
1da177e4 1572 spin_lock_irqsave(&ha->hardware_lock, flags);
fca29703 1573 reg = ha->iobase;
044cc6c8 1574 if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
fca29703
AV		 1575 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_HOST_INT);
1576 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_RISC_INT);
1577 } else {
1578 WRT_REG_WORD(&reg->isp.semaphore, 0);
1579 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_RISC_INT);
1580 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_HOST_INT);
1581
1582 /* Enable proper parity */
1583 if (!IS_QLA2100(ha) && !IS_QLA2200(ha)) {
1584 if (IS_QLA2300(ha))
1585 /* SRAM parity */
1586 WRT_REG_WORD(&reg->isp.hccr,
1587 (HCCR_ENABLE_PARITY + 0x1));
1588 else
1589 /* SRAM, Instruction RAM and GP RAM parity */
1590 WRT_REG_WORD(&reg->isp.hccr,
1591 (HCCR_ENABLE_PARITY + 0x7));
1592 }
1da177e4
LT		 1593 }
1594 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1595
abbd8870 1596 ha->isp_ops.enable_intrs(ha);
1da177e4
LT		 1597
1598 /* v2.19.5b6 */
1599 /*
1600 * Wait around max loop_reset_delay secs for the devices to come
1601 * on-line. We don't want Linux scanning before we are ready.
1602 *
1603 */
1604 for (wait_switch = jiffies + (ha->loop_reset_delay * HZ);
1605 time_before(jiffies,wait_switch) &&
1606 !(ha->device_flags & (DFLG_NO_CABLE | DFLG_FABRIC_DEVICES))
1607 && (ha->device_flags & SWITCH_FOUND) ;) {
1608
1609 qla2x00_check_fabric_devices(ha);
1610
1611 msleep(10);
1612 }
1613
a1541d5a 1614 pci_set_drvdata(pdev, ha);
1da177e4
LT		 1615 ha->flags.init_done = 1;
1616 num_hosts++;
1617
a1541d5a
AV		 1618 ret = scsi_add_host(host, &pdev->dev);
1619 if (ret)
1620 goto probe_failed;
1621
1622 qla2x00_alloc_sysfs_attr(ha);
1623
1624 qla2x00_init_host_attr(ha);
1625
1da177e4
LT		 1626 qla_printk(KERN_INFO, ha, "\n"
1627 " QLogic Fibre Channel HBA Driver: %s\n"
1628 " QLogic %s - %s\n"
5433383e
AV		 1629 " ISP%04X: %s @ %s hdma%c, host#=%ld, fw=%s\n",
1630 qla2x00_version_str, ha->model_number,
1631 ha->model_desc ? ha->model_desc: "", pdev->device,
1632 ha->isp_ops.pci_info_str(ha, pci_info), pci_name(pdev),
1633 ha->flags.enable_64bit_addressing ? '+': '-', ha->host_no,
1634 ha->isp_ops.fw_version_str(ha, fw_str));
1da177e4 1635
8482e118 1636 /* Go with fc_rport registration. */
1637 list_for_each_entry(fcport, &ha->fcports, list)
1638 qla2x00_reg_remote_port(ha, fcport);
1da177e4
LT		 1639
1640 return 0;
1641
1642probe_failed:
1643 qla2x00_free_device(ha);
1644
1645 scsi_host_put(host);
1646
1647probe_disable_device:
1648 pci_disable_device(pdev);
1649
a1541d5a
AV		 1650probe_out:
1651 return ret;
1da177e4 1652}
1da177e4 1653
7ee61397
AV		 1654static void __devexit
1655qla2x00_remove_one(struct pci_dev *pdev)
1da177e4
LT		 1656{
1657 scsi_qla_host_t *ha;
1658
1659 ha = pci_get_drvdata(pdev);
1660
8482e118 1661 qla2x00_free_sysfs_attr(ha);
1da177e4 1662
bdf79621 1663 fc_remove_host(ha->host);
1664
1da177e4
LT		 1665 scsi_remove_host(ha->host);
1666
1667 qla2x00_free_device(ha);
1668
1669 scsi_host_put(ha->host);
1670
1671 pci_set_drvdata(pdev, NULL);
1672}
1da177e4
LT		 1673
1674static void
1675qla2x00_free_device(scsi_qla_host_t *ha)
1676{
1da177e4
LT		 1677 /* Disable timer */
1678 if (ha->timer_active)
1679 qla2x00_stop_timer(ha);
1680
1681 /* Kill the kernel thread for this host */
39a11240
CH		 1682 if (ha->dpc_thread) {
1683 struct task_struct *t = ha->dpc_thread;
1da177e4 1684
39a11240
CH		 1685 /*
1686 * qla2xxx_wake_dpc checks for ->dpc_thread
1687 * so we need to zero it out.
1688 */
1689 ha->dpc_thread = NULL;
1690 kthread_stop(t);
1da177e4
LT		 1691 }
1692
a7a167bf
AV		 1693 if (ha->eft)
1694 qla2x00_trace_control(ha, TC_DISABLE, 0, 0);
1695
f6ef3b18
AV		 1696 /* Stop currently executing firmware. */
1697 qla2x00_stop_firmware(ha);
1da177e4 1698
f6ef3b18
AV		 1699 /* turn-off interrupts on the card */
1700 if (ha->interrupts_on)
1701 ha->isp_ops.disable_intrs(ha);
1702
1703 qla2x00_mem_free(ha);
1da177e4
LT		 1704
1705 ha->flags.online = 0;
1706
1707 /* Detach interrupts */
77347ff7
ZB		 1708 if (ha->host->irq)
1709 free_irq(ha->host->irq, ha);
1da177e4
LT		 1710
1711 /* release io space registers */
1712 if (ha->iobase)
1713 iounmap(ha->iobase);
1714 pci_release_regions(ha->pdev);
1715
1716 pci_disable_device(ha->pdev);
1717}
1718
d97994dc 1719static inline void
1720qla2x00_schedule_rport_del(struct scsi_qla_host *ha, fc_port_t *fcport,
1721 int defer)
1722{
1723 unsigned long flags;
1724 struct fc_rport *rport;
1725
1726 if (!fcport->rport)
1727 return;
1728
1729 rport = fcport->rport;
1730 if (defer) {
1731 spin_lock_irqsave(&fcport->rport_lock, flags);
1732 fcport->drport = rport;
1733 fcport->rport = NULL;
387f96b4 1734 *(fc_port_t **)rport->dd_data = NULL;
d97994dc 1735 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1736 set_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags);
1737 } else {
1738 spin_lock_irqsave(&fcport->rport_lock, flags);
1739 fcport->rport = NULL;
387f96b4 1740 *(fc_port_t **)rport->dd_data = NULL;
d97994dc 1741 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1742 fc_remote_port_delete(rport);
1743 }
1744}
1745
1da177e4
LT		 1746/*
1747 * qla2x00_mark_device_lost Updates fcport state when device goes offline.
1748 *
1749 * Input: ha = adapter block pointer. fcport = port structure pointer.
1750 *
1751 * Return: None.
1752 *
1753 * Context:
1754 */
1755void qla2x00_mark_device_lost(scsi_qla_host_t *ha, fc_port_t *fcport,
d97994dc 1756 int do_login, int defer)
1da177e4 1757{
d97994dc 1758 if (atomic_read(&fcport->state) == FCS_ONLINE)
1759 qla2x00_schedule_rport_del(ha, fcport, defer);
19a7b4ae 1760
fa2a1ce5 1761 /*
1da177e4
LT		 1762 * We may need to retry the login, so don't change the state of the
1763 * port but do the retries.
1764 */
1765 if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
1766 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1767
1768 if (!do_login)
1769 return;
1770
1771 if (fcport->login_retry == 0) {
1772 fcport->login_retry = ha->login_retry_count;
1773 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
1774
1775 DEBUG(printk("scsi(%ld): Port login retry: "
1776 "%02x%02x%02x%02x%02x%02x%02x%02x, "
1777 "id = 0x%04x retry cnt=%d\n",
1778 ha->host_no,
1779 fcport->port_name[0],
1780 fcport->port_name[1],
1781 fcport->port_name[2],
1782 fcport->port_name[3],
1783 fcport->port_name[4],
1784 fcport->port_name[5],
1785 fcport->port_name[6],
1786 fcport->port_name[7],
1787 fcport->loop_id,
1788 fcport->login_retry));
1789 }
1790}
1791
1792/*
1793 * qla2x00_mark_all_devices_lost
1794 * Updates fcport state when device goes offline.
1795 *
1796 * Input:
1797 * ha = adapter block pointer.
1798 * fcport = port structure pointer.
1799 *
1800 * Return:
1801 * None.
1802 *
1803 * Context:
1804 */
1805void
d97994dc 1806qla2x00_mark_all_devices_lost(scsi_qla_host_t *ha, int defer)
1da177e4
LT		 1807{
1808 fc_port_t *fcport;
1809
1810 list_for_each_entry(fcport, &ha->fcports, list) {
1811 if (fcport->port_type != FCT_TARGET)
1812 continue;
1813
1814 /*
1815 * No point in marking the device as lost, if the device is
1816 * already DEAD.
1817 */
1818 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
1819 continue;
d97994dc 1820 if (atomic_read(&fcport->state) == FCS_ONLINE)
1821 qla2x00_schedule_rport_del(ha, fcport, defer);
1da177e4
LT		 1822 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1823 }
d97994dc 1824
39a11240
CH		 1825 if (defer)
1826 qla2xxx_wake_dpc(ha);
1da177e4
LT		 1827}
1828
1829/*
1830* qla2x00_mem_alloc
1831* Allocates adapter memory.
1832*
1833* Returns:
1834* 0 = success.
1835* 1 = failure.
1836*/
1837static uint8_t
1838qla2x00_mem_alloc(scsi_qla_host_t *ha)
1839{
1840 char name[16];
1841 uint8_t status = 1;
1842 int retry= 10;
1843
1844 do {
1845 /*
1846 * This will loop only once if everything goes well, else some
1847 * number of retries will be performed to get around a kernel
1848 * bug where available mem is not allocated until after a
1849 * little delay and a retry.
1850 */
1851 ha->request_ring = dma_alloc_coherent(&ha->pdev->dev,
1852 (ha->request_q_length + 1) * sizeof(request_t),
1853 &ha->request_dma, GFP_KERNEL);
1854 if (ha->request_ring == NULL) {
1855 qla_printk(KERN_WARNING, ha,
1856 "Memory Allocation failed - request_ring\n");
1857
1858 qla2x00_mem_free(ha);
1859 msleep(100);
1860
1861 continue;
1862 }
1863
1864 ha->response_ring = dma_alloc_coherent(&ha->pdev->dev,
1865 (ha->response_q_length + 1) * sizeof(response_t),
1866 &ha->response_dma, GFP_KERNEL);
1867 if (ha->response_ring == NULL) {
1868 qla_printk(KERN_WARNING, ha,
1869 "Memory Allocation failed - response_ring\n");
1870
1871 qla2x00_mem_free(ha);
1872 msleep(100);
1873
1874 continue;
1875 }
1876
1877 ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
1878 &ha->gid_list_dma, GFP_KERNEL);
1879 if (ha->gid_list == NULL) {
1880 qla_printk(KERN_WARNING, ha,
1881 "Memory Allocation failed - gid_list\n");
1882
1883 qla2x00_mem_free(ha);
1884 msleep(100);
1885
1886 continue;
1887 }
1888
cb63067a
AV		 1889 snprintf(name, sizeof(name), "%s_%ld", QLA2XXX_DRIVER_NAME,
1890 ha->host_no);
1da177e4
LT		 1891 ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
1892 DMA_POOL_SIZE, 8, 0);
1893 if (ha->s_dma_pool == NULL) {
1894 qla_printk(KERN_WARNING, ha,
1895 "Memory Allocation failed - s_dma_pool\n");
1896
1897 qla2x00_mem_free(ha);
1898 msleep(100);
1899
1900 continue;
1901 }
1902
1903 /* get consistent memory allocated for init control block */
1904 ha->init_cb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
1905 &ha->init_cb_dma);
1906 if (ha->init_cb == NULL) {
1907 qla_printk(KERN_WARNING, ha,
1908 "Memory Allocation failed - init_cb\n");
1909
1910 qla2x00_mem_free(ha);
1911 msleep(100);
1912
1913 continue;
1914 }
fca29703 1915 memset(ha->init_cb, 0, ha->init_cb_size);
1da177e4 1916
1da177e4
LT		 1917 if (qla2x00_allocate_sp_pool(ha)) {
1918 qla_printk(KERN_WARNING, ha,
1919 "Memory Allocation failed - "
1920 "qla2x00_allocate_sp_pool()\n");
1921
1922 qla2x00_mem_free(ha);
1923 msleep(100);
1924
1925 continue;
1926 }
1927
1928 /* Allocate memory for SNS commands */
1929 if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
1930 /* Get consistent memory allocated for SNS commands */
1931 ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
1932 sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma,
1933 GFP_KERNEL);
1934 if (ha->sns_cmd == NULL) {
1935 /* error */
1936 qla_printk(KERN_WARNING, ha,
1937 "Memory Allocation failed - sns_cmd\n");
1938
1939 qla2x00_mem_free(ha);
1940 msleep(100);
1941
1942 continue;
1943 }
1944 memset(ha->sns_cmd, 0, sizeof(struct sns_cmd_pkt));
1945 } else {
1946 /* Get consistent memory allocated for MS IOCB */
1947 ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
1948 &ha->ms_iocb_dma);
1949 if (ha->ms_iocb == NULL) {
1950 /* error */
1951 qla_printk(KERN_WARNING, ha,
1952 "Memory Allocation failed - ms_iocb\n");
1953
1954 qla2x00_mem_free(ha);
1955 msleep(100);
1956
1957 continue;
1958 }
1959 memset(ha->ms_iocb, 0, sizeof(ms_iocb_entry_t));
1960
1961 /*
1962 * Get consistent memory allocated for CT SNS
1963 * commands
1964 */
1965 ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
1966 sizeof(struct ct_sns_pkt), &ha->ct_sns_dma,
1967 GFP_KERNEL);
1968 if (ha->ct_sns == NULL) {
1969 /* error */
1970 qla_printk(KERN_WARNING, ha,
1971 "Memory Allocation failed - ct_sns\n");
1972
1973 qla2x00_mem_free(ha);
1974 msleep(100);
1975
1976 continue;
1977 }
1978 memset(ha->ct_sns, 0, sizeof(struct ct_sns_pkt));
88729e53
AV		 1979
1980 if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
1981 /*
1982 * Get consistent memory allocated for SFP
1983 * block.
1984 */
1985 ha->sfp_data = dma_pool_alloc(ha->s_dma_pool,
1986 GFP_KERNEL, &ha->sfp_data_dma);
1987 if (ha->sfp_data == NULL) {
1988 qla_printk(KERN_WARNING, ha,
1989 "Memory Allocation failed - "
1990 "sfp_data\n");
1991
1992 qla2x00_mem_free(ha);
1993 msleep(100);
1994
1995 continue;
1996 }
1997 memset(ha->sfp_data, 0, SFP_BLOCK_SIZE);
1998 }
1da177e4
LT		 1999 }
2000
2001 /* Done all allocations without any error. */
2002 status = 0;
2003
2004 } while (retry-- && status != 0);
2005
2006 if (status) {
2007 printk(KERN_WARNING
2008 "%s(): **** FAILED ****\n", __func__);
2009 }
2010
2011 return(status);
2012}
2013
2014/*
2015* qla2x00_mem_free
2016* Frees all adapter allocated memory.
2017*
2018* Input:
2019* ha = adapter block pointer.
2020*/
2021static void
2022qla2x00_mem_free(scsi_qla_host_t *ha)
2023{
1da177e4
LT		 2024 struct list_head *fcpl, *fcptemp;
2025 fc_port_t *fcport;
1da177e4
LT		 2026
2027 if (ha == NULL) {
2028 /* error */
2029 DEBUG2(printk("%s(): ERROR invalid ha pointer.\n", __func__));
2030 return;
2031 }
2032
1da177e4
LT		 2033 /* free sp pool */
2034 qla2x00_free_sp_pool(ha);
2035
a7a167bf
AV		 2036 if (ha->fw_dump) {
2037 if (ha->eft)
2038 dma_free_coherent(&ha->pdev->dev,
2039 ntohl(ha->fw_dump->eft_size), ha->eft, ha->eft_dma);
2040 vfree(ha->fw_dump);
2041 }
2042
1da177e4
LT		 2043 if (ha->sns_cmd)
2044 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
2045 ha->sns_cmd, ha->sns_cmd_dma);
2046
2047 if (ha->ct_sns)
2048 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2049 ha->ct_sns, ha->ct_sns_dma);
2050
88729e53
AV		 2051 if (ha->sfp_data)
2052 dma_pool_free(ha->s_dma_pool, ha->sfp_data, ha->sfp_data_dma);
2053
1da177e4
LT		 2054 if (ha->ms_iocb)
2055 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2056
1da177e4
LT		 2057 if (ha->init_cb)
2058 dma_pool_free(ha->s_dma_pool, ha->init_cb, ha->init_cb_dma);
2059
2060 if (ha->s_dma_pool)
2061 dma_pool_destroy(ha->s_dma_pool);
2062
1da177e4
LT		 2063 if (ha->gid_list)
2064 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2065 ha->gid_list_dma);
2066
2067 if (ha->response_ring)
2068 dma_free_coherent(&ha->pdev->dev,
2069 (ha->response_q_length + 1) * sizeof(response_t),
2070 ha->response_ring, ha->response_dma);
2071
2072 if (ha->request_ring)
2073 dma_free_coherent(&ha->pdev->dev,
2074 (ha->request_q_length + 1) * sizeof(request_t),
2075 ha->request_ring, ha->request_dma);
2076
a7a167bf
AV		 2077 ha->eft = NULL;
2078 ha->eft_dma = 0;
1da177e4
LT		 2079 ha->sns_cmd = NULL;
2080 ha->sns_cmd_dma = 0;
2081 ha->ct_sns = NULL;
2082 ha->ct_sns_dma = 0;
2083 ha->ms_iocb = NULL;
2084 ha->ms_iocb_dma = 0;
1da177e4
LT		 2085 ha->init_cb = NULL;
2086 ha->init_cb_dma = 0;
2087
2088 ha->s_dma_pool = NULL;
2089
1da177e4
LT		 2090 ha->gid_list = NULL;
2091 ha->gid_list_dma = 0;
2092
2093 ha->response_ring = NULL;
2094 ha->response_dma = 0;
2095 ha->request_ring = NULL;
2096 ha->request_dma = 0;
2097
2098 list_for_each_safe(fcpl, fcptemp, &ha->fcports) {
2099 fcport = list_entry(fcpl, fc_port_t, list);
2100
1da177e4
LT		 2101 /* fc ports */
2102 list_del_init(&fcport->list);
2103 kfree(fcport);
2104 }
2105 INIT_LIST_HEAD(&ha->fcports);
2106
1da177e4 2107 ha->fw_dump = NULL;
fca29703 2108 ha->fw_dumped = 0;
1da177e4 2109 ha->fw_dump_reading = 0;
854165f4 2110
2111 vfree(ha->optrom_buffer);
1da177e4
LT		 2112}
2113
2114/*
2115 * qla2x00_allocate_sp_pool
2116 * This routine is called during initialization to allocate
2117 * memory for local srb_t.
2118 *
2119 * Input:
2120 * ha = adapter block pointer.
2121 *
2122 * Context:
2123 * Kernel context.
1da177e4
LT		 2124 */
2125static int
fa2a1ce5 2126qla2x00_allocate_sp_pool(scsi_qla_host_t *ha)
1da177e4
LT		 2127{
2128 int rval;
2129
2130 rval = QLA_SUCCESS;
93d2341c 2131 ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
1da177e4
LT		 2132 if (ha->srb_mempool == NULL) {
2133 qla_printk(KERN_INFO, ha, "Unable to allocate SRB mempool.\n");
2134 rval = QLA_FUNCTION_FAILED;
2135 }
2136 return (rval);
2137}
2138
2139/*
2140 * This routine frees all adapter allocated memory.
fa2a1ce5 2141 *
1da177e4
LT		 2142 */
2143static void
fa2a1ce5 2144qla2x00_free_sp_pool( scsi_qla_host_t *ha)
1da177e4
LT		 2145{
2146 if (ha->srb_mempool) {
2147 mempool_destroy(ha->srb_mempool);
2148 ha->srb_mempool = NULL;
2149 }
2150}
2151
2152/**************************************************************************
2153* qla2x00_do_dpc
2154* This kernel thread is a task that is schedule by the interrupt handler
2155* to perform the background processing for interrupts.
2156*
2157* Notes:
2158* This task always run in the context of a kernel thread. It
2159* is kick-off by the driver's detect code and starts up
2160* up one per adapter. It immediately goes to sleep and waits for
2161* some fibre event. When either the interrupt handler or
2162* the timer routine detects a event it will one of the task
2163* bits then wake us up.
2164**************************************************************************/
2165static int
2166qla2x00_do_dpc(void *data)
2167{
1da177e4
LT		 2168 scsi_qla_host_t *ha;
2169 fc_port_t *fcport;
1da177e4 2170 uint8_t status;
1da177e4 2171 uint16_t next_loopid;
1da177e4
LT		 2172
2173 ha = (scsi_qla_host_t *)data;
2174
1da177e4
LT		 2175 set_user_nice(current, -20);
2176
39a11240 2177 while (!kthread_should_stop()) {
1da177e4
LT		 2178 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
2179
39a11240
CH		 2180 set_current_state(TASK_INTERRUPTIBLE);
2181 schedule();
2182 __set_current_state(TASK_RUNNING);
1da177e4
LT		 2183
2184 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
2185
2186 /* Initialization not yet finished. Don't do anything yet. */
39a11240 2187 if (!ha->flags.init_done)
1da177e4
LT		 2188 continue;
2189
2190 DEBUG3(printk("scsi(%ld): DPC handler\n", ha->host_no));
2191
2192 ha->dpc_active = 1;
2193
1da177e4 2194 if (ha->flags.mbox_busy) {
1da177e4
LT		 2195 ha->dpc_active = 0;
2196 continue;
2197 }
2198
2199 if (test_and_clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) {
2200
2201 DEBUG(printk("scsi(%ld): dpc: sched "
2202 "qla2x00_abort_isp ha = %p\n",
2203 ha->host_no, ha));
2204 if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
2205 &ha->dpc_flags))) {
2206
2207 if (qla2x00_abort_isp(ha)) {
2208 /* failed. retry later */
2209 set_bit(ISP_ABORT_NEEDED,
2210 &ha->dpc_flags);
2211 }
2212 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2213 }
2214 DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
2215 ha->host_no));
2216 }
2217
d97994dc 2218 if (test_and_clear_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags))
2219 qla2x00_update_fcports(ha);
2220
91ca7b01
AV		 2221 if (test_and_clear_bit(LOOP_RESET_NEEDED, &ha->dpc_flags)) {
2222 DEBUG(printk("scsi(%ld): dpc: sched loop_reset()\n",
2223 ha->host_no));
2224 qla2x00_loop_reset(ha);
2225 }
2226
1da177e4
LT		 2227 if (test_and_clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) &&
2228 (!(test_and_set_bit(RESET_ACTIVE, &ha->dpc_flags)))) {
2229
2230 DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
2231 ha->host_no));
2232
2233 qla2x00_rst_aen(ha);
2234 clear_bit(RESET_ACTIVE, &ha->dpc_flags);
2235 }
2236
2237 /* Retry each device up to login retry count */
2238 if ((test_and_clear_bit(RELOGIN_NEEDED, &ha->dpc_flags)) &&
2239 !test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) &&
2240 atomic_read(&ha->loop_state) != LOOP_DOWN) {
2241
2242 DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
2243 ha->host_no));
2244
2245 next_loopid = 0;
2246 list_for_each_entry(fcport, &ha->fcports, list) {
2247 if (fcport->port_type != FCT_TARGET)
2248 continue;
2249
2250 /*
2251 * If the port is not ONLINE then try to login
2252 * to it if we haven't run out of retries.
2253 */
2254 if (atomic_read(&fcport->state) != FCS_ONLINE &&
2255 fcport->login_retry) {
2256
2257 fcport->login_retry--;
2258 if (fcport->flags & FCF_FABRIC_DEVICE) {
2259 if (fcport->flags &
2260 FCF_TAPE_PRESENT)
abbd8870 2261 ha->isp_ops.fabric_logout(
1c7c6357
AV		 2262 ha, fcport->loop_id,
2263 fcport->d_id.b.domain,
2264 fcport->d_id.b.area,
2265 fcport->d_id.b.al_pa);
1da177e4
LT		 2266 status = qla2x00_fabric_login(
2267 ha, fcport, &next_loopid);
2268 } else
2269 status =
2270 qla2x00_local_device_login(
9a52a57c 2271 ha, fcport);
1da177e4
LT		 2272
2273 if (status == QLA_SUCCESS) {
2274 fcport->old_loop_id = fcport->loop_id;
2275
2276 DEBUG(printk("scsi(%ld): port login OK: logged in ID 0x%x\n",
2277 ha->host_no, fcport->loop_id));
fa2a1ce5 2278
052c40c8 2279 qla2x00_update_fcport(ha,
2280 fcport);
1da177e4
LT		 2281 } else if (status == 1) {
2282 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
2283 /* retry the login again */
2284 DEBUG(printk("scsi(%ld): Retrying %d login again loop_id 0x%x\n",
2285 ha->host_no,
2286 fcport->login_retry, fcport->loop_id));
2287 } else {
2288 fcport->login_retry = 0;
2289 }
2290 }
2291 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2292 break;
2293 }
2294 DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
2295 ha->host_no));
2296 }
2297
2298 if ((test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags)) &&
2299 atomic_read(&ha->loop_state) != LOOP_DOWN) {
2300
2301 clear_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags);
2302 DEBUG(printk("scsi(%ld): qla2x00_login_retry()\n",
2303 ha->host_no));
fa2a1ce5 2304
1da177e4
LT		 2305 set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
2306
2307 DEBUG(printk("scsi(%ld): qla2x00_login_retry - end\n",
2308 ha->host_no));
2309 }
2310
2311 if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
2312
2313 DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
2314 ha->host_no));
2315
2316 if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
2317 &ha->dpc_flags))) {
2318
2319 qla2x00_loop_resync(ha);
2320
2321 clear_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags);
2322 }
2323
2324 DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
2325 ha->host_no));
2326 }
2327
1da177e4
LT		 2328 if (test_and_clear_bit(FCPORT_RESCAN_NEEDED, &ha->dpc_flags)) {
2329
2330 DEBUG(printk("scsi(%ld): Rescan flagged fcports...\n",
2331 ha->host_no));
2332
2333 qla2x00_rescan_fcports(ha);
2334
2335 DEBUG(printk("scsi(%ld): Rescan flagged fcports..."
2336 "end.\n",
2337 ha->host_no));
2338 }
2339
1da177e4 2340 if (!ha->interrupts_on)
abbd8870 2341 ha->isp_ops.enable_intrs(ha);
1da177e4 2342
f6df144c 2343 if (test_and_clear_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags))
2344 ha->isp_ops.beacon_blink(ha);
2345
1da177e4
LT		 2346 ha->dpc_active = 0;
2347 } /* End of while(1) */
2348
2349 DEBUG(printk("scsi(%ld): DPC handler exiting\n", ha->host_no));
2350
2351 /*
2352 * Make sure that nobody tries to wake us up again.
2353 */
1da177e4
LT		 2354 ha->dpc_active = 0;
2355
39a11240
CH		 2356 return 0;
2357}
2358
2359void
2360qla2xxx_wake_dpc(scsi_qla_host_t *ha)
2361{
2362 if (ha->dpc_thread)
2363 wake_up_process(ha->dpc_thread);
1da177e4
LT		 2364}
2365
1da177e4
LT		 2366/*
2367* qla2x00_rst_aen
2368* Processes asynchronous reset.
2369*
2370* Input:
2371* ha = adapter block pointer.
2372*/
2373static void
fa2a1ce5 2374qla2x00_rst_aen(scsi_qla_host_t *ha)
1da177e4
LT		 2375{
2376 if (ha->flags.online && !ha->flags.reset_active &&
2377 !atomic_read(&ha->loop_down_timer) &&
2378 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) {
2379 do {
2380 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
2381
2382 /*
2383 * Issue marker command only when we are going to start
2384 * the I/O.
2385 */
2386 ha->marker_needed = 1;
2387 } while (!atomic_read(&ha->loop_down_timer) &&
2388 (test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags)));
2389 }
2390}
2391
f4f051eb 2392static void
2393qla2x00_sp_free_dma(scsi_qla_host_t *ha, srb_t *sp)
2394{
2395 struct scsi_cmnd *cmd = sp->cmd;
2396
2397 if (sp->flags & SRB_DMA_VALID) {
2398 if (cmd->use_sg) {
2399 dma_unmap_sg(&ha->pdev->dev, cmd->request_buffer,
2400 cmd->use_sg, cmd->sc_data_direction);
2401 } else if (cmd->request_bufflen) {
2402 dma_unmap_single(&ha->pdev->dev, sp->dma_handle,
2403 cmd->request_bufflen, cmd->sc_data_direction);
2404 }
2405 sp->flags &= ~SRB_DMA_VALID;
2406 }
fca29703 2407 CMD_SP(cmd) = NULL;
f4f051eb 2408}
2409
2410void
2411qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *sp)
2412{
2413 struct scsi_cmnd *cmd = sp->cmd;
2414
2415 qla2x00_sp_free_dma(ha, sp);
2416
f4f051eb 2417 mempool_free(sp, ha->srb_mempool);
2418
2419 cmd->scsi_done(cmd);
2420}
bdf79621 2421
1da177e4
LT		 2422/**************************************************************************
2423* qla2x00_timer
2424*
2425* Description:
2426* One second timer
2427*
2428* Context: Interrupt
2429***************************************************************************/
2430static void
2431qla2x00_timer(scsi_qla_host_t *ha)
2432{
1da177e4
LT		 2433 unsigned long cpu_flags = 0;
2434 fc_port_t *fcport;
1da177e4
LT		 2435 int start_dpc = 0;
2436 int index;
2437 srb_t *sp;
f4f051eb 2438 int t;
1da177e4
LT		 2439
2440 /*
2441 * Ports - Port down timer.
2442 *
2443 * Whenever, a port is in the LOST state we start decrementing its port
2444 * down timer every second until it reaches zero. Once it reaches zero
fa2a1ce5 2445 * the port it marked DEAD.
1da177e4
LT		 2446 */
2447 t = 0;
2448 list_for_each_entry(fcport, &ha->fcports, list) {
2449 if (fcport->port_type != FCT_TARGET)
2450 continue;
2451
2452 if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
2453
2454 if (atomic_read(&fcport->port_down_timer) == 0)
2455 continue;
2456
fa2a1ce5 2457 if (atomic_dec_and_test(&fcport->port_down_timer) != 0)
1da177e4 2458 atomic_set(&fcport->state, FCS_DEVICE_DEAD);
fa2a1ce5 2459
1da177e4 2460 DEBUG(printk("scsi(%ld): fcport-%d - port retry count: "
fca29703 2461 "%d remaining\n",
1da177e4
LT		 2462 ha->host_no,
2463 t, atomic_read(&fcport->port_down_timer)));
2464 }
2465 t++;
2466 } /* End of for fcport */
2467
1da177e4
LT		 2468
2469 /* Loop down handler. */
2470 if (atomic_read(&ha->loop_down_timer) > 0 &&
2471 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags)) && ha->flags.online) {
2472
2473 if (atomic_read(&ha->loop_down_timer) ==
2474 ha->loop_down_abort_time) {
2475
2476 DEBUG(printk("scsi(%ld): Loop Down - aborting the "
2477 "queues before time expire\n",
2478 ha->host_no));
2479
2480 if (!IS_QLA2100(ha) && ha->link_down_timeout)
fa2a1ce5 2481 atomic_set(&ha->loop_state, LOOP_DEAD);
1da177e4
LT		 2482
2483 /* Schedule an ISP abort to return any tape commands. */
2484 spin_lock_irqsave(&ha->hardware_lock, cpu_flags);
2485 for (index = 1; index < MAX_OUTSTANDING_COMMANDS;
2486 index++) {
bdf79621 2487 fc_port_t *sfcp;
2488
1da177e4
LT		 2489 sp = ha->outstanding_cmds[index];
2490 if (!sp)
2491 continue;
bdf79621 2492 sfcp = sp->fcport;
2493 if (!(sfcp->flags & FCF_TAPE_PRESENT))
1da177e4
LT		 2494 continue;
2495
2496 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2497 break;
2498 }
2499 spin_unlock_irqrestore(&ha->hardware_lock, cpu_flags);
2500
2501 set_bit(ABORT_QUEUES_NEEDED, &ha->dpc_flags);
2502 start_dpc++;
2503 }
2504
2505 /* if the loop has been down for 4 minutes, reinit adapter */
2506 if (atomic_dec_and_test(&ha->loop_down_timer) != 0) {
2507 DEBUG(printk("scsi(%ld): Loop down exceed 4 mins - "
2508 "restarting queues.\n",
2509 ha->host_no));
2510
2511 set_bit(RESTART_QUEUES_NEEDED, &ha->dpc_flags);
2512 start_dpc++;
2513
2514 if (!(ha->device_flags & DFLG_NO_CABLE)) {
2515 DEBUG(printk("scsi(%ld): Loop down - "
2516 "aborting ISP.\n",
2517 ha->host_no));
2518 qla_printk(KERN_WARNING, ha,
2519 "Loop down - aborting ISP.\n");
2520
2521 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2522 }
2523 }
fca29703 2524 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
1da177e4
LT		 2525 ha->host_no,
2526 atomic_read(&ha->loop_down_timer)));
2527 }
2528
f6df144c 2529 /* Check if beacon LED needs to be blinked */
2530 if (ha->beacon_blink_led == 1) {
2531 set_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags);
2532 start_dpc++;
2533 }
2534
1da177e4
LT		 2535 /* Schedule the DPC routine if needed */
2536 if ((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags) ||
2537 test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) ||
91ca7b01 2538 test_bit(LOOP_RESET_NEEDED, &ha->dpc_flags) ||
d97994dc 2539 test_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags) ||
1da177e4
LT		 2540 start_dpc ||
2541 test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags) ||
f4f051eb 2542 test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) ||
f6df144c 2543 test_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags) ||
39a11240
CH		 2544 test_bit(RELOGIN_NEEDED, &ha->dpc_flags)))
2545 qla2xxx_wake_dpc(ha);
1da177e4
LT		 2546
2547 qla2x00_restart_timer(ha, WATCH_INTERVAL);
2548}
2549
1da177e4
LT		 2550/* XXX(hch): crude hack to emulate a down_timeout() */
2551int
2552qla2x00_down_timeout(struct semaphore *sema, unsigned long timeout)
2553{
fe74c71f
AV		 2554 const unsigned int step = 100; /* msecs */
2555 unsigned int iterations = jiffies_to_msecs(timeout)/100;
1da177e4
LT		 2556
2557 do {
2558 if (!down_trylock(sema))
2559 return 0;
fe74c71f 2560 if (msleep_interruptible(step))
1da177e4 2561 break;
fe74c71f 2562 } while (--iterations >= 0);
1da177e4
LT		 2563
2564 return -ETIMEDOUT;
2565}
2566
5433383e
AV		 2567/* Firmware interface routines. */
2568
48c02fde 2569#define FW_BLOBS 5
5433383e
AV		 2570#define FW_ISP21XX 0
2571#define FW_ISP22XX 1
2572#define FW_ISP2300 2
2573#define FW_ISP2322 3
48c02fde 2574#define FW_ISP24XX 4
5433383e
AV		 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 }, },
5433383e
AV		 2583 { .name = "ql2400_fw.bin", },
2584};
2585
2586struct fw_blob *
2587qla2x00_request_firmware(scsi_qla_host_t *ha)
2588{
2589 struct fw_blob *blob;
2590
2591 blob = NULL;
2592 if (IS_QLA2100(ha)) {
2593 blob = &qla_fw_blobs[FW_ISP21XX];
2594 } else if (IS_QLA2200(ha)) {
2595 blob = &qla_fw_blobs[FW_ISP22XX];
48c02fde 2596 } else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
5433383e 2597 blob = &qla_fw_blobs[FW_ISP2300];
48c02fde 2598 } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
5433383e 2599 blob = &qla_fw_blobs[FW_ISP2322];
044cc6c8 2600 } else if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
5433383e
AV		 2601 blob = &qla_fw_blobs[FW_ISP24XX];
2602 }
2603
2604 down(&qla_fw_lock);
2605 if (blob->fw)
2606 goto out;
2607
2608 if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
2609 DEBUG2(printk("scsi(%ld): Failed to load firmware image "
2610 "(%s).\n", ha->host_no, blob->name));
2611 blob->fw = NULL;
2612 blob = NULL;
2613 goto out;
2614 }
2615
2616out:
2617 up(&qla_fw_lock);
2618 return blob;
2619}
2620
2621static void
2622qla2x00_release_firmware(void)
2623{
2624 int idx;
2625
2626 down(&qla_fw_lock);
2627 for (idx = 0; idx < FW_BLOBS; idx++)
2628 if (qla_fw_blobs[idx].fw)
2629 release_firmware(qla_fw_blobs[idx].fw);
2630 up(&qla_fw_lock);
2631}
2632
5433383e 2633static struct pci_device_id qla2xxx_pci_tbl[] = {
47f5e069
AV		 2634 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
2635 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
2636 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
2637 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
2638 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
2639 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
2640 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
2641 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
2642 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
2643 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
2644 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
5433383e
AV		 2645 { 0 },
2646};
2647MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
2648
fca29703 2649static struct pci_driver qla2xxx_pci_driver = {
cb63067a 2650 .name = QLA2XXX_DRIVER_NAME,
0a21ef1e
JB		 2651 .driver = {
2652 .owner = THIS_MODULE,
2653 },
fca29703 2654 .id_table = qla2xxx_pci_tbl,
7ee61397
AV		 2655 .probe = qla2x00_probe_one,
2656 .remove = __devexit_p(qla2x00_remove_one),
fca29703
AV		 2657};
2658
1da177e4
LT		 2659/**
2660 * qla2x00_module_init - Module initialization.
2661 **/
2662static int __init
2663qla2x00_module_init(void)
2664{
fca29703
AV		 2665 int ret = 0;
2666
1da177e4 2667 /* Allocate cache for SRBs. */
354d6b21 2668 srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
1da177e4
LT		 2669 SLAB_HWCACHE_ALIGN, NULL, NULL);
2670 if (srb_cachep == NULL) {
2671 printk(KERN_ERR
2672 "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
2673 return -ENOMEM;
2674 }
2675
2676 /* Derive version string. */
2677 strcpy(qla2x00_version_str, QLA2XXX_VERSION);
0181944f
AV		 2678 if (extended_error_logging)
2679 strcat(qla2x00_version_str, "-debug");
2680
1c97a12a
AV		 2681 qla2xxx_transport_template =
2682 fc_attach_transport(&qla2xxx_transport_functions);
1da177e4
LT		 2683 if (!qla2xxx_transport_template)
2684 return -ENODEV;
2685
2686 printk(KERN_INFO "QLogic Fibre Channel HBA Driver\n");
7ee61397 2687 ret = pci_register_driver(&qla2xxx_pci_driver);
fca29703
AV		 2688 if (ret) {
2689 kmem_cache_destroy(srb_cachep);
2690 fc_release_transport(qla2xxx_transport_template);
2691 }
2692 return ret;
1da177e4
LT		 2693}
2694
2695/**
2696 * qla2x00_module_exit - Module cleanup.
2697 **/
2698static void __exit
2699qla2x00_module_exit(void)
2700{
7ee61397 2701 pci_unregister_driver(&qla2xxx_pci_driver);
5433383e 2702 qla2x00_release_firmware();
354d6b21 2703 kmem_cache_destroy(srb_cachep);
1da177e4
LT		 2704 fc_release_transport(qla2xxx_transport_template);
2705}
2706
2707module_init(qla2x00_module_init);
2708module_exit(qla2x00_module_exit);
2709
2710MODULE_AUTHOR("QLogic Corporation");
2711MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
2712MODULE_LICENSE("GPL");
2713MODULE_VERSION(QLA2XXX_VERSION);
Linux kernel - Deliverables
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