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[SCSI] qla2xxx: Correct IOCB queueing mechanism for ISP54XX HBAs.
[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>
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 */
e18b890b 27static struct kmem_cache *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,
900d9f98 42 "Maximum number of command retries to a port that returns "
1da177e4
LT		 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 "
900d9f98 49 "a Fabric scan. This is needed for several broken switches. "
1da177e4
LT		 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
11010fec
AV		 64int ql2xextended_error_logging;
65module_param(ql2xextended_error_logging, int, S_IRUGO|S_IRUSR);
66MODULE_PARM_DESC(ql2xextended_error_logging,
0181944f
AV		 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
df7baa50
AV		 80#define MAX_Q_DEPTH 32
81static int ql2xmaxqdepth = MAX_Q_DEPTH;
82module_param(ql2xmaxqdepth, int, S_IRUGO|S_IWUSR);
83MODULE_PARM_DESC(ql2xmaxqdepth,
84 "Maximum queue depth to report for target devices.");
85
86int ql2xqfullrampup = 120;
87module_param(ql2xqfullrampup, int, S_IRUGO|S_IWUSR);
88MODULE_PARM_DESC(ql2xqfullrampup,
89 "Number of seconds to wait to begin to ramp-up the queue "
90 "depth for a device after a queue-full condition has been "
91 "detected. Default is 120 seconds.");
92
1da177e4 93/*
fa2a1ce5 94 * SCSI host template entry points
1da177e4
LT		 95 */
96static int qla2xxx_slave_configure(struct scsi_device * device);
f4f051eb 97static int qla2xxx_slave_alloc(struct scsi_device *);
1e99e33a
AV		 98static int qla2xxx_scan_finished(struct Scsi_Host *, unsigned long time);
99static void qla2xxx_scan_start(struct Scsi_Host *);
f4f051eb 100static void qla2xxx_slave_destroy(struct scsi_device *);
1da177e4
LT		 101static int qla2x00_queuecommand(struct scsi_cmnd *cmd,
102 void (*fn)(struct scsi_cmnd *));
fca29703
AV		 103static int qla24xx_queuecommand(struct scsi_cmnd *cmd,
104 void (*fn)(struct scsi_cmnd *));
1da177e4
LT		 105static int qla2xxx_eh_abort(struct scsi_cmnd *);
106static int qla2xxx_eh_device_reset(struct scsi_cmnd *);
107static int qla2xxx_eh_bus_reset(struct scsi_cmnd *);
108static int qla2xxx_eh_host_reset(struct scsi_cmnd *);
109static int qla2x00_loop_reset(scsi_qla_host_t *ha);
110static int qla2x00_device_reset(scsi_qla_host_t *, fc_port_t *);
111
ce7e4af7
AV		 112static int qla2x00_change_queue_depth(struct scsi_device *, int);
113static int qla2x00_change_queue_type(struct scsi_device *, int);
114
1da177e4
LT		 115static struct scsi_host_template qla2x00_driver_template = {
116 .module = THIS_MODULE,
cb63067a 117 .name = QLA2XXX_DRIVER_NAME,
1da177e4
LT		 118 .queuecommand = qla2x00_queuecommand,
119
120 .eh_abort_handler = qla2xxx_eh_abort,
121 .eh_device_reset_handler = qla2xxx_eh_device_reset,
122 .eh_bus_reset_handler = qla2xxx_eh_bus_reset,
123 .eh_host_reset_handler = qla2xxx_eh_host_reset,
124
125 .slave_configure = qla2xxx_slave_configure,
126
f4f051eb
AV		 127 .slave_alloc = qla2xxx_slave_alloc,
128 .slave_destroy = qla2xxx_slave_destroy,
1e99e33a
AV		 129 .scan_finished = qla2xxx_scan_finished,
130 .scan_start = qla2xxx_scan_start,
ce7e4af7
AV		 131 .change_queue_depth = qla2x00_change_queue_depth,
132 .change_queue_type = qla2x00_change_queue_type,
1da177e4
LT		 133 .this_id = -1,
134 .cmd_per_lun = 3,
135 .use_clustering = ENABLE_CLUSTERING,
136 .sg_tablesize = SG_ALL,
137
138 /*
139 * The RISC allows for each command to transfer (2^32-1) bytes of data,
140 * which equates to 0x800000 sectors.
141 */
142 .max_sectors = 0xFFFF,
afb046e2 143 .shost_attrs = qla2x00_host_attrs,
1da177e4
LT		 144};
145
fca29703
AV		 146static struct scsi_host_template qla24xx_driver_template = {
147 .module = THIS_MODULE,
cb63067a 148 .name = QLA2XXX_DRIVER_NAME,
fca29703
AV		 149 .queuecommand = qla24xx_queuecommand,
150
151 .eh_abort_handler = qla2xxx_eh_abort,
152 .eh_device_reset_handler = qla2xxx_eh_device_reset,
153 .eh_bus_reset_handler = qla2xxx_eh_bus_reset,
154 .eh_host_reset_handler = qla2xxx_eh_host_reset,
155
156 .slave_configure = qla2xxx_slave_configure,
157
158 .slave_alloc = qla2xxx_slave_alloc,
159 .slave_destroy = qla2xxx_slave_destroy,
ce7e4af7
AV		 160 .change_queue_depth = qla2x00_change_queue_depth,
161 .change_queue_type = qla2x00_change_queue_type,
fca29703
AV		 162 .this_id = -1,
163 .cmd_per_lun = 3,
164 .use_clustering = ENABLE_CLUSTERING,
165 .sg_tablesize = SG_ALL,
166
167 .max_sectors = 0xFFFF,
afb046e2 168 .shost_attrs = qla2x00_host_attrs,
fca29703
AV		 169};
170
1da177e4
LT		 171static struct scsi_transport_template *qla2xxx_transport_template = NULL;
172
1da177e4
LT		 173/* TODO Convert to inlines
174 *
175 * Timer routines
176 */
177#define WATCH_INTERVAL 1 /* number of seconds */
178
179static void qla2x00_timer(scsi_qla_host_t *);
180
181static __inline__ void qla2x00_start_timer(scsi_qla_host_t *,
182 void *, unsigned long);
183static __inline__ void qla2x00_restart_timer(scsi_qla_host_t *, unsigned long);
184static __inline__ void qla2x00_stop_timer(scsi_qla_host_t *);
185
186static inline void
187qla2x00_start_timer(scsi_qla_host_t *ha, void *func, unsigned long interval)
188{
189 init_timer(&ha->timer);
190 ha->timer.expires = jiffies + interval * HZ;
191 ha->timer.data = (unsigned long)ha;
192 ha->timer.function = (void (*)(unsigned long))func;
193 add_timer(&ha->timer);
194 ha->timer_active = 1;
195}
196
197static inline void
198qla2x00_restart_timer(scsi_qla_host_t *ha, unsigned long interval)
199{
200 mod_timer(&ha->timer, jiffies + interval * HZ);
201}
202
203static __inline__ void
204qla2x00_stop_timer(scsi_qla_host_t *ha)
205{
206 del_timer_sync(&ha->timer);
207 ha->timer_active = 0;
208}
209
1da177e4
LT		 210static int qla2x00_do_dpc(void *data);
211
212static void qla2x00_rst_aen(scsi_qla_host_t *);
213
214static uint8_t qla2x00_mem_alloc(scsi_qla_host_t *);
215static void qla2x00_mem_free(scsi_qla_host_t *ha);
216static int qla2x00_allocate_sp_pool( scsi_qla_host_t *ha);
217static void qla2x00_free_sp_pool(scsi_qla_host_t *ha);
f4f051eb
AV		 218static void qla2x00_sp_free_dma(scsi_qla_host_t *, srb_t *);
219void qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *);
1da177e4 220
1da177e4
LT		 221/* -------------------------------------------------------------------------- */
222
1da177e4 223static char *
abbd8870 224qla2x00_pci_info_str(struct scsi_qla_host *ha, char *str)
1da177e4
LT		 225{
226 static char *pci_bus_modes[] = {
227 "33", "66", "100", "133",
228 };
229 uint16_t pci_bus;
230
231 strcpy(str, "PCI");
232 pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
233 if (pci_bus) {
234 strcat(str, "-X (");
235 strcat(str, pci_bus_modes[pci_bus]);
236 } else {
237 pci_bus = (ha->pci_attr & BIT_8) >> 8;
238 strcat(str, " (");
239 strcat(str, pci_bus_modes[pci_bus]);
240 }
241 strcat(str, " MHz)");
242
243 return (str);
244}
245
fca29703
AV		 246static char *
247qla24xx_pci_info_str(struct scsi_qla_host *ha, char *str)
248{
249 static char *pci_bus_modes[] = { "33", "66", "100", "133", };
250 uint32_t pci_bus;
251 int pcie_reg;
252
253 pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
254 if (pcie_reg) {
255 char lwstr[6];
256 uint16_t pcie_lstat, lspeed, lwidth;
257
258 pcie_reg += 0x12;
259 pci_read_config_word(ha->pdev, pcie_reg, &pcie_lstat);
260 lspeed = pcie_lstat & (BIT_0 | BIT_1 | BIT_2 | BIT_3);
261 lwidth = (pcie_lstat &
262 (BIT_4 | BIT_5 | BIT_6 | BIT_7 | BIT_8 | BIT_9)) >> 4;
263
264 strcpy(str, "PCIe (");
265 if (lspeed == 1)
266 strcat(str, "2.5Gb/s ");
267 else
268 strcat(str, "<unknown> ");
269 snprintf(lwstr, sizeof(lwstr), "x%d)", lwidth);
270 strcat(str, lwstr);
271
272 return str;
273 }
274
275 strcpy(str, "PCI");
276 pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
277 if (pci_bus == 0 || pci_bus == 8) {
278 strcat(str, " (");
279 strcat(str, pci_bus_modes[pci_bus >> 3]);
280 } else {
281 strcat(str, "-X ");
282 if (pci_bus & BIT_2)
283 strcat(str, "Mode 2");
284 else
285 strcat(str, "Mode 1");
286 strcat(str, " (");
287 strcat(str, pci_bus_modes[pci_bus & ~BIT_2]);
288 }
289 strcat(str, " MHz)");
290
291 return str;
292}
293
e5f82ab8 294static char *
abbd8870 295qla2x00_fw_version_str(struct scsi_qla_host *ha, char *str)
1da177e4
LT		 296{
297 char un_str[10];
fa2a1ce5 298
1da177e4
LT		 299 sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
300 ha->fw_minor_version,
301 ha->fw_subminor_version);
302
303 if (ha->fw_attributes & BIT_9) {
304 strcat(str, "FLX");
305 return (str);
306 }
307
308 switch (ha->fw_attributes & 0xFF) {
309 case 0x7:
310 strcat(str, "EF");
311 break;
312 case 0x17:
313 strcat(str, "TP");
314 break;
315 case 0x37:
316 strcat(str, "IP");
317 break;
318 case 0x77:
319 strcat(str, "VI");
320 break;
321 default:
322 sprintf(un_str, "(%x)", ha->fw_attributes);
323 strcat(str, un_str);
324 break;
325 }
326 if (ha->fw_attributes & 0x100)
327 strcat(str, "X");
328
329 return (str);
330}
331
e5f82ab8 332static char *
fca29703
AV		 333qla24xx_fw_version_str(struct scsi_qla_host *ha, char *str)
334{
f0883ac6
AV		 335 sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
336 ha->fw_minor_version,
337 ha->fw_subminor_version);
338
fca29703
AV		 339 if (ha->fw_attributes & BIT_0)
340 strcat(str, "[Class 2] ");
341 if (ha->fw_attributes & BIT_1)
342 strcat(str, "[IP] ");
343 if (ha->fw_attributes & BIT_2)
344 strcat(str, "[Multi-ID] ");
345 if (ha->fw_attributes & BIT_13)
346 strcat(str, "[Experimental]");
347 return str;
fca29703
AV		 348}
349
350static inline srb_t *
351qla2x00_get_new_sp(scsi_qla_host_t *ha, fc_port_t *fcport,
352 struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
353{
354 srb_t *sp;
355
356 sp = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
357 if (!sp)
358 return sp;
359
fca29703
AV		 360 sp->ha = ha;
361 sp->fcport = fcport;
362 sp->cmd = cmd;
363 sp->flags = 0;
364 CMD_SP(cmd) = (void *)sp;
365 cmd->scsi_done = done;
366
367 return sp;
368}
369
1da177e4 370static int
f4f051eb 371qla2x00_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
1da177e4 372{
f4f051eb 373 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
bdf79621 374 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
19a7b4ae 375 struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
f4f051eb
AV		 376 srb_t *sp;
377 int rval;
1da177e4 378
19a7b4ae
JSEC		 379 rval = fc_remote_port_chkready(rport);
380 if (rval) {
381 cmd->result = rval;
f4f051eb
AV		 382 goto qc_fail_command;
383 }
1da177e4 384
387f96b4
AV		 385 /* Close window on fcport/rport state-transitioning. */
386 if (!*(fc_port_t **)rport->dd_data) {
387 cmd->result = DID_IMM_RETRY << 16;
388 goto qc_fail_command;
389 }
390
f4f051eb
AV		 391 if (atomic_read(&fcport->state) != FCS_ONLINE) {
392 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
393 atomic_read(&ha->loop_state) == LOOP_DEAD) {
394 cmd->result = DID_NO_CONNECT << 16;
395 goto qc_fail_command;
396 }
397 goto qc_host_busy;
398 }
1da177e4
LT		 399
400 spin_unlock_irq(ha->host->host_lock);
401
fca29703
AV		 402 sp = qla2x00_get_new_sp(ha, fcport, cmd, done);
403 if (!sp)
f4f051eb 404 goto qc_host_busy_lock;
1da177e4 405
f4f051eb
AV		 406 rval = qla2x00_start_scsi(sp);
407 if (rval != QLA_SUCCESS)
408 goto qc_host_busy_free_sp;
1da177e4 409
f4f051eb 410 spin_lock_irq(ha->host->host_lock);
1da177e4 411
f4f051eb 412 return 0;
1da177e4 413
f4f051eb
AV		 414qc_host_busy_free_sp:
415 qla2x00_sp_free_dma(ha, sp);
f4f051eb 416 mempool_free(sp, ha->srb_mempool);
1da177e4 417
f4f051eb
AV		 418qc_host_busy_lock:
419 spin_lock_irq(ha->host->host_lock);
1da177e4 420
f4f051eb
AV		 421qc_host_busy:
422 return SCSI_MLQUEUE_HOST_BUSY;
1da177e4 423
f4f051eb
AV		 424qc_fail_command:
425 done(cmd);
1da177e4 426
f4f051eb 427 return 0;
1da177e4
LT		 428}
429
fca29703
AV		 430
431static int
432qla24xx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
433{
434 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
435 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
19a7b4ae 436 struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
fca29703
AV		 437 srb_t *sp;
438 int rval;
439
19a7b4ae
JSEC		 440 rval = fc_remote_port_chkready(rport);
441 if (rval) {
442 cmd->result = rval;
fca29703
AV		 443 goto qc24_fail_command;
444 }
445
387f96b4
AV		 446 /* Close window on fcport/rport state-transitioning. */
447 if (!*(fc_port_t **)rport->dd_data) {
448 cmd->result = DID_IMM_RETRY << 16;
449 goto qc24_fail_command;
450 }
451
fca29703
AV		 452 if (atomic_read(&fcport->state) != FCS_ONLINE) {
453 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
454 atomic_read(&ha->loop_state) == LOOP_DEAD) {
455 cmd->result = DID_NO_CONNECT << 16;
456 goto qc24_fail_command;
457 }
458 goto qc24_host_busy;
459 }
460
461 spin_unlock_irq(ha->host->host_lock);
462
463 sp = qla2x00_get_new_sp(ha, fcport, cmd, done);
464 if (!sp)
465 goto qc24_host_busy_lock;
466
467 rval = qla24xx_start_scsi(sp);
468 if (rval != QLA_SUCCESS)
469 goto qc24_host_busy_free_sp;
470
471 spin_lock_irq(ha->host->host_lock);
472
473 return 0;
474
475qc24_host_busy_free_sp:
476 qla2x00_sp_free_dma(ha, sp);
477 mempool_free(sp, ha->srb_mempool);
478
479qc24_host_busy_lock:
480 spin_lock_irq(ha->host->host_lock);
481
482qc24_host_busy:
483 return SCSI_MLQUEUE_HOST_BUSY;
484
485qc24_fail_command:
486 done(cmd);
487
488 return 0;
489}
490
491
1da177e4
LT		 492/*
493 * qla2x00_eh_wait_on_command
494 * Waits for the command to be returned by the Firmware for some
495 * max time.
496 *
497 * Input:
498 * ha = actual ha whose done queue will contain the command
499 * returned by firmware.
500 * cmd = Scsi Command to wait on.
501 * flag = Abort/Reset(Bus or Device Reset)
502 *
503 * Return:
504 * Not Found : 0
505 * Found : 1
506 */
507static int
508qla2x00_eh_wait_on_command(scsi_qla_host_t *ha, struct scsi_cmnd *cmd)
509{
fe74c71f
AV		 510#define ABORT_POLLING_PERIOD 1000
511#define ABORT_WAIT_ITER ((10 * 1000) / (ABORT_POLLING_PERIOD))
f4f051eb
AV		 512 unsigned long wait_iter = ABORT_WAIT_ITER;
513 int ret = QLA_SUCCESS;
1da177e4 514
f4f051eb 515 while (CMD_SP(cmd)) {
fe74c71f 516 msleep(ABORT_POLLING_PERIOD);
1da177e4 517
f4f051eb
AV		 518 if (--wait_iter)
519 break;
520 }
521 if (CMD_SP(cmd))
522 ret = QLA_FUNCTION_FAILED;
1da177e4 523
f4f051eb 524 return ret;
1da177e4
LT		 525}
526
527/*
528 * qla2x00_wait_for_hba_online
fa2a1ce5 529 * Wait till the HBA is online after going through
1da177e4
LT		 530 * <= MAX_RETRIES_OF_ISP_ABORT or
531 * finally HBA is disabled ie marked offline
532 *
533 * Input:
534 * ha - pointer to host adapter structure
fa2a1ce5
AV		 535 *
536 * Note:
1da177e4
LT		 537 * Does context switching-Release SPIN_LOCK
538 * (if any) before calling this routine.
539 *
540 * Return:
541 * Success (Adapter is online) : 0
542 * Failed (Adapter is offline/disabled) : 1
543 */
854165f4 544int
1da177e4
LT		 545qla2x00_wait_for_hba_online(scsi_qla_host_t *ha)
546{
fca29703
AV		 547 int return_status;
548 unsigned long wait_online;
1da177e4 549
fa2a1ce5 550 wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
1da177e4
LT		 551 while (((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) ||
552 test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags) ||
553 test_bit(ISP_ABORT_RETRY, &ha->dpc_flags) ||
554 ha->dpc_active) && time_before(jiffies, wait_online)) {
555
556 msleep(1000);
557 }
fa2a1ce5
AV		 558 if (ha->flags.online)
559 return_status = QLA_SUCCESS;
1da177e4
LT		 560 else
561 return_status = QLA_FUNCTION_FAILED;
562
563 DEBUG2(printk("%s return_status=%d\n",__func__,return_status));
564
565 return (return_status);
566}
567
568/*
569 * qla2x00_wait_for_loop_ready
570 * Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
fa2a1ce5 571 * to be in LOOP_READY state.
1da177e4
LT		 572 * Input:
573 * ha - pointer to host adapter structure
fa2a1ce5
AV		 574 *
575 * Note:
1da177e4
LT		 576 * Does context switching-Release SPIN_LOCK
577 * (if any) before calling this routine.
fa2a1ce5 578 *
1da177e4
LT		 579 *
580 * Return:
581 * Success (LOOP_READY) : 0
582 * Failed (LOOP_NOT_READY) : 1
583 */
fa2a1ce5 584static inline int
1da177e4
LT		 585qla2x00_wait_for_loop_ready(scsi_qla_host_t *ha)
586{
587 int return_status = QLA_SUCCESS;
588 unsigned long loop_timeout ;
589
590 /* wait for 5 min at the max for loop to be ready */
fa2a1ce5 591 loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ);
1da177e4
LT		 592
593 while ((!atomic_read(&ha->loop_down_timer) &&
594 atomic_read(&ha->loop_state) == LOOP_DOWN) ||
1da177e4 595 atomic_read(&ha->loop_state) != LOOP_READY) {
57680080
RA		 596 if (atomic_read(&ha->loop_state) == LOOP_DEAD) {
597 return_status = QLA_FUNCTION_FAILED;
598 break;
599 }
1da177e4
LT		 600 msleep(1000);
601 if (time_after_eq(jiffies, loop_timeout)) {
602 return_status = QLA_FUNCTION_FAILED;
603 break;
604 }
605 }
fa2a1ce5 606 return (return_status);
1da177e4
LT		 607}
608
07db5183
AV		 609static void
610qla2x00_block_error_handler(struct scsi_cmnd *cmnd)
611{
612 struct Scsi_Host *shost = cmnd->device->host;
613 struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device));
614 unsigned long flags;
615
616 spin_lock_irqsave(shost->host_lock, flags);
617 while (rport->port_state == FC_PORTSTATE_BLOCKED) {
618 spin_unlock_irqrestore(shost->host_lock, flags);
619 msleep(1000);
620 spin_lock_irqsave(shost->host_lock, flags);
621 }
622 spin_unlock_irqrestore(shost->host_lock, flags);
623 return;
624}
625
1da177e4
LT		 626/**************************************************************************
627* qla2xxx_eh_abort
628*
629* Description:
630* The abort function will abort the specified command.
631*
632* Input:
633* cmd = Linux SCSI command packet to be aborted.
634*
635* Returns:
636* Either SUCCESS or FAILED.
637*
638* Note:
2ea00202 639* Only return FAILED if command not returned by firmware.
1da177e4 640**************************************************************************/
e5f82ab8 641static int
1da177e4
LT		 642qla2xxx_eh_abort(struct scsi_cmnd *cmd)
643{
f4f051eb
AV		 644 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
645 srb_t *sp;
646 int ret, i;
647 unsigned int id, lun;
648 unsigned long serial;
18e144d3 649 unsigned long flags;
2ea00202 650 int wait = 0;
1da177e4 651
07db5183
AV		 652 qla2x00_block_error_handler(cmd);
653
f4f051eb 654 if (!CMD_SP(cmd))
2ea00202 655 return SUCCESS;
1da177e4 656
2ea00202 657 ret = SUCCESS;
1da177e4 658
f4f051eb
AV		 659 id = cmd->device->id;
660 lun = cmd->device->lun;
661 serial = cmd->serial_number;
1da177e4 662
f4f051eb 663 /* Check active list for command command. */
18e144d3 664 spin_lock_irqsave(&ha->hardware_lock, flags);
f4f051eb
AV		 665 for (i = 1; i < MAX_OUTSTANDING_COMMANDS; i++) {
666 sp = ha->outstanding_cmds[i];
1da177e4 667
f4f051eb
AV		 668 if (sp == NULL)
669 continue;
1da177e4 670
f4f051eb
AV		 671 if (sp->cmd != cmd)
672 continue;
1da177e4 673
75bc4190
AV		 674 DEBUG2(printk("%s(%ld): aborting sp %p from RISC. pid=%ld.\n",
675 __func__, ha->host_no, sp, serial));
744f11fd 676 DEBUG3(qla2x00_print_scsi_cmd(cmd));
1da177e4 677
18e144d3 678 spin_unlock_irqrestore(&ha->hardware_lock, flags);
abbd8870 679 if (ha->isp_ops.abort_command(ha, sp)) {
f4f051eb
AV		 680 DEBUG2(printk("%s(%ld): abort_command "
681 "mbx failed.\n", __func__, ha->host_no));
682 } else {
683 DEBUG3(printk("%s(%ld): abort_command "
684 "mbx success.\n", __func__, ha->host_no));
2ea00202 685 wait = 1;
f4f051eb 686 }
18e144d3 687 spin_lock_irqsave(&ha->hardware_lock, flags);
1da177e4 688
f4f051eb
AV		 689 break;
690 }
18e144d3 691 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1da177e4 692
f4f051eb 693 /* Wait for the command to be returned. */
2ea00202 694 if (wait) {
f4f051eb 695 if (qla2x00_eh_wait_on_command(ha, cmd) != QLA_SUCCESS) {
fa2a1ce5 696 qla_printk(KERN_ERR, ha,
f4f051eb
AV		 697 "scsi(%ld:%d:%d): Abort handler timed out -- %lx "
698 "%x.\n", ha->host_no, id, lun, serial, ret);
2ea00202 699 ret = FAILED;
f4f051eb 700 }
1da177e4 701 }
1da177e4 702
fa2a1ce5 703 qla_printk(KERN_INFO, ha,
2ea00202
MR		 704 "scsi(%ld:%d:%d): Abort command issued -- %d %lx %x.\n",
705 ha->host_no, id, lun, wait, serial, ret);
1da177e4 706
f4f051eb
AV		 707 return ret;
708}
1da177e4 709
f4f051eb
AV		 710/**************************************************************************
711* qla2x00_eh_wait_for_pending_target_commands
712*
713* Description:
714* Waits for all the commands to come back from the specified target.
715*
716* Input:
717* ha - pointer to scsi_qla_host structure.
fa2a1ce5 718* t - target
f4f051eb
AV		 719* Returns:
720* Either SUCCESS or FAILED.
721*
722* Note:
723**************************************************************************/
724static int
725qla2x00_eh_wait_for_pending_target_commands(scsi_qla_host_t *ha, unsigned int t)
726{
727 int cnt;
728 int status;
729 srb_t *sp;
730 struct scsi_cmnd *cmd;
18e144d3 731 unsigned long flags;
1da177e4 732
f4f051eb 733 status = 0;
1da177e4
LT		 734
735 /*
f4f051eb
AV		 736 * Waiting for all commands for the designated target in the active
737 * array
1da177e4
LT		 738 */
739 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
18e144d3 740 spin_lock_irqsave(&ha->hardware_lock, flags);
1da177e4
LT		 741 sp = ha->outstanding_cmds[cnt];
742 if (sp) {
743 cmd = sp->cmd;
18e144d3 744 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1da177e4
LT		 745 if (cmd->device->id == t) {
746 if (!qla2x00_eh_wait_on_command(ha, cmd)) {
747 status = 1;
748 break;
749 }
750 }
f4f051eb 751 } else {
18e144d3 752 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1da177e4
LT		 753 }
754 }
755 return (status);
756}
757
758
759/**************************************************************************
760* qla2xxx_eh_device_reset
761*
762* Description:
763* The device reset function will reset the target and abort any
764* executing commands.
765*
766* NOTE: The use of SP is undefined within this context. Do *NOT*
fa2a1ce5 767* attempt to use this value, even if you determine it is
1da177e4
LT		 768* non-null.
769*
770* Input:
771* cmd = Linux SCSI command packet of the command that cause the
772* bus device reset.
773*
774* Returns:
775* SUCCESS/FAILURE (defined as macro in scsi.h).
776*
777**************************************************************************/
e5f82ab8 778static int
1da177e4
LT		 779qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
780{
f4f051eb 781 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
bdf79621 782 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
f4f051eb
AV		 783 int ret;
784 unsigned int id, lun;
785 unsigned long serial;
1da177e4 786
07db5183
AV		 787 qla2x00_block_error_handler(cmd);
788
f4f051eb 789 ret = FAILED;
1da177e4 790
f4f051eb
AV		 791 id = cmd->device->id;
792 lun = cmd->device->lun;
793 serial = cmd->serial_number;
1da177e4 794
b0328bee 795 if (!fcport)
f4f051eb 796 return ret;
1da177e4
LT		 797
798 qla_printk(KERN_INFO, ha,
f4f051eb 799 "scsi(%ld:%d:%d): DEVICE RESET ISSUED.\n", ha->host_no, id, lun);
1da177e4 800
94d0e7b8 801 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
1da177e4 802 goto eh_dev_reset_done;
1da177e4
LT		 803
804 if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
f4f051eb
AV		 805 if (qla2x00_device_reset(ha, fcport) == 0)
806 ret = SUCCESS;
1da177e4
LT		 807
808#if defined(LOGOUT_AFTER_DEVICE_RESET)
f4f051eb
AV		 809 if (ret == SUCCESS) {
810 if (fcport->flags & FC_FABRIC_DEVICE) {
abbd8870 811 ha->isp_ops.fabric_logout(ha, fcport->loop_id);
d97994dc 812 qla2x00_mark_device_lost(ha, fcport, 0, 0);
1da177e4
LT		 813 }
814 }
815#endif
816 } else {
817 DEBUG2(printk(KERN_INFO
744f11fd 818 "%s failed: loop not ready\n",__func__));
1da177e4
LT		 819 }
820
f4f051eb 821 if (ret == FAILED) {
1da177e4
LT		 822 DEBUG3(printk("%s(%ld): device reset failed\n",
823 __func__, ha->host_no));
824 qla_printk(KERN_INFO, ha, "%s: device reset failed\n",
825 __func__);
826
827 goto eh_dev_reset_done;
828 }
829
9a41a62b
AV		 830 /* Flush outstanding commands. */
831 if (qla2x00_eh_wait_for_pending_target_commands(ha, id))
832 ret = FAILED;
833 if (ret == FAILED) {
834 DEBUG3(printk("%s(%ld): failed while waiting for commands\n",
835 __func__, ha->host_no));
836 qla_printk(KERN_INFO, ha,
837 "%s: failed while waiting for commands\n", __func__);
838 } else
839 qla_printk(KERN_INFO, ha,
840 "scsi(%ld:%d:%d): DEVICE RESET SUCCEEDED.\n", ha->host_no,
841 id, lun);
28f22b03 842 eh_dev_reset_done:
f4f051eb 843 return ret;
1da177e4
LT		 844}
845
846/**************************************************************************
847* qla2x00_eh_wait_for_pending_commands
848*
849* Description:
850* Waits for all the commands to come back from the specified host.
851*
852* Input:
853* ha - pointer to scsi_qla_host structure.
854*
855* Returns:
856* 1 : SUCCESS
857* 0 : FAILED
858*
859* Note:
860**************************************************************************/
861static int
862qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *ha)
863{
864 int cnt;
865 int status;
866 srb_t *sp;
867 struct scsi_cmnd *cmd;
18e144d3 868 unsigned long flags;
1da177e4
LT		 869
870 status = 1;
871
872 /*
873 * Waiting for all commands for the designated target in the active
874 * array
875 */
876 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
18e144d3 877 spin_lock_irqsave(&ha->hardware_lock, flags);
1da177e4
LT		 878 sp = ha->outstanding_cmds[cnt];
879 if (sp) {
880 cmd = sp->cmd;
18e144d3 881 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1da177e4
LT		 882 status = qla2x00_eh_wait_on_command(ha, cmd);
883 if (status == 0)
884 break;
885 }
886 else {
18e144d3 887 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1da177e4
LT		 888 }
889 }
890 return (status);
891}
892
893
894/**************************************************************************
895* qla2xxx_eh_bus_reset
896*
897* Description:
898* The bus reset function will reset the bus and abort any executing
899* commands.
900*
901* Input:
902* cmd = Linux SCSI command packet of the command that cause the
903* bus reset.
904*
905* Returns:
906* SUCCESS/FAILURE (defined as macro in scsi.h).
907*
908**************************************************************************/
e5f82ab8 909static int
1da177e4
LT		 910qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
911{
f4f051eb 912 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
bdf79621 913 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
f4f051eb
AV		 914 int ret;
915 unsigned int id, lun;
916 unsigned long serial;
917
07db5183
AV		 918 qla2x00_block_error_handler(cmd);
919
f4f051eb
AV		 920 ret = FAILED;
921
922 id = cmd->device->id;
923 lun = cmd->device->lun;
924 serial = cmd->serial_number;
1da177e4 925
b0328bee 926 if (!fcport)
f4f051eb 927 return ret;
1da177e4
LT		 928
929 qla_printk(KERN_INFO, ha,
f4f051eb 930 "scsi(%ld:%d:%d): LOOP RESET ISSUED.\n", ha->host_no, id, lun);
1da177e4 931
1da177e4
LT		 932 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS) {
933 DEBUG2(printk("%s failed:board disabled\n",__func__));
f4f051eb 934 goto eh_bus_reset_done;
1da177e4
LT		 935 }
936
937 if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
f4f051eb
AV		 938 if (qla2x00_loop_reset(ha) == QLA_SUCCESS)
939 ret = SUCCESS;
1da177e4 940 }
f4f051eb
AV		 941 if (ret == FAILED)
942 goto eh_bus_reset_done;
1da177e4 943
9a41a62b
AV		 944 /* Flush outstanding commands. */
945 if (!qla2x00_eh_wait_for_pending_commands(ha))
946 ret = FAILED;
1da177e4 947
f4f051eb 948eh_bus_reset_done:
1da177e4 949 qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
f4f051eb 950 (ret == FAILED) ? "failed" : "succeded");
1da177e4 951
f4f051eb 952 return ret;
1da177e4
LT		 953}
954
955/**************************************************************************
956* qla2xxx_eh_host_reset
957*
958* Description:
959* The reset function will reset the Adapter.
960*
961* Input:
962* cmd = Linux SCSI command packet of the command that cause the
963* adapter reset.
964*
965* Returns:
966* Either SUCCESS or FAILED.
967*
968* Note:
969**************************************************************************/
e5f82ab8 970static int
1da177e4
LT		 971qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
972{
f4f051eb 973 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
bdf79621 974 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
f4f051eb
AV		 975 int ret;
976 unsigned int id, lun;
977 unsigned long serial;
1da177e4 978
07db5183
AV		 979 qla2x00_block_error_handler(cmd);
980
f4f051eb
AV		 981 ret = FAILED;
982
983 id = cmd->device->id;
984 lun = cmd->device->lun;
985 serial = cmd->serial_number;
986
b0328bee 987 if (!fcport)
f4f051eb 988 return ret;
1da177e4 989
1da177e4 990 qla_printk(KERN_INFO, ha,
f4f051eb 991 "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", ha->host_no, id, lun);
1da177e4 992
1da177e4 993 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
f4f051eb 994 goto eh_host_reset_lock;
1da177e4
LT		 995
996 /*
997 * Fixme-may be dpc thread is active and processing
fa2a1ce5 998 * loop_resync,so wait a while for it to
1da177e4
LT		 999 * be completed and then issue big hammer.Otherwise
1000 * it may cause I/O failure as big hammer marks the
1001 * devices as lost kicking of the port_down_timer
1002 * while dpc is stuck for the mailbox to complete.
1003 */
1da177e4
LT		 1004 qla2x00_wait_for_loop_ready(ha);
1005 set_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
1006 if (qla2x00_abort_isp(ha)) {
1007 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
1008 /* failed. schedule dpc to try */
1009 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
1010
1011 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
f4f051eb 1012 goto eh_host_reset_lock;
fa2a1ce5 1013 }
1da177e4
LT		 1014 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
1015
1da177e4 1016 /* Waiting for our command in done_queue to be returned to OS.*/
f4f051eb
AV		 1017 if (qla2x00_eh_wait_for_pending_commands(ha))
1018 ret = SUCCESS;
1da177e4 1019
f4f051eb 1020eh_host_reset_lock:
f4f051eb
AV		 1021 qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
1022 (ret == FAILED) ? "failed" : "succeded");
1da177e4 1023
f4f051eb
AV		 1024 return ret;
1025}
1da177e4
LT		 1026
1027/*
1028* qla2x00_loop_reset
1029* Issue loop reset.
1030*
1031* Input:
1032* ha = adapter block pointer.
1033*
1034* Returns:
1035* 0 = success
1036*/
1037static int
1038qla2x00_loop_reset(scsi_qla_host_t *ha)
1039{
1040 int status = QLA_SUCCESS;
bdf79621 1041 struct fc_port *fcport;
1da177e4
LT		 1042
1043 if (ha->flags.enable_lip_reset) {
1044 status = qla2x00_lip_reset(ha);
1045 }
1046
1047 if (status == QLA_SUCCESS && ha->flags.enable_target_reset) {
bdf79621
AV		 1048 list_for_each_entry(fcport, &ha->fcports, list) {
1049 if (fcport->port_type != FCT_TARGET)
1da177e4
LT		 1050 continue;
1051
c00c72ae 1052 status = qla2x00_device_reset(ha, fcport);
bdf79621 1053 if (status != QLA_SUCCESS)
1da177e4 1054 break;
1da177e4
LT		 1055 }
1056 }
1057
1058 if (status == QLA_SUCCESS &&
fa2a1ce5 1059 ((!ha->flags.enable_target_reset &&
1da177e4
LT		 1060 !ha->flags.enable_lip_reset) ||
1061 ha->flags.enable_lip_full_login)) {
1062
1063 status = qla2x00_full_login_lip(ha);
1064 }
1065
1066 /* Issue marker command only when we are going to start the I/O */
1067 ha->marker_needed = 1;
1068
1069 if (status) {
1070 /* Empty */
1071 DEBUG2_3(printk("%s(%ld): **** FAILED ****\n",
1072 __func__,
744f11fd 1073 ha->host_no));
1da177e4
LT		 1074 } else {
1075 /* Empty */
1076 DEBUG3(printk("%s(%ld): exiting normally.\n",
1077 __func__,
744f11fd 1078 ha->host_no));
1da177e4
LT		 1079 }
1080
1081 return(status);
1082}
1083
1084/*
1085 * qla2x00_device_reset
1086 * Issue bus device reset message to the target.
1087 *
1088 * Input:
1089 * ha = adapter block pointer.
1090 * t = SCSI ID.
1091 * TARGET_QUEUE_LOCK must be released.
1092 * ADAPTER_STATE_LOCK must be released.
1093 *
1094 * Context:
1095 * Kernel context.
1096 */
1097static int
1098qla2x00_device_reset(scsi_qla_host_t *ha, fc_port_t *reset_fcport)
1099{
1100 /* Abort Target command will clear Reservation */
abbd8870 1101 return ha->isp_ops.abort_target(reset_fcport);
1da177e4
LT		 1102}
1103
f4f051eb
AV		 1104static int
1105qla2xxx_slave_alloc(struct scsi_device *sdev)
1da177e4 1106{
bdf79621 1107 struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1da177e4 1108
19a7b4ae 1109 if (!rport || fc_remote_port_chkready(rport))
f4f051eb 1110 return -ENXIO;
bdf79621 1111
19a7b4ae 1112 sdev->hostdata = *(fc_port_t **)rport->dd_data;
1da177e4 1113
f4f051eb
AV		 1114 return 0;
1115}
1da177e4 1116
f4f051eb
AV		 1117static int
1118qla2xxx_slave_configure(struct scsi_device *sdev)
1119{
8482e118
AV		 1120 scsi_qla_host_t *ha = to_qla_host(sdev->host);
1121 struct fc_rport *rport = starget_to_rport(sdev->sdev_target);
1122
f4f051eb 1123 if (sdev->tagged_supported)
df7baa50 1124 scsi_activate_tcq(sdev, ha->max_q_depth);
f4f051eb 1125 else
df7baa50 1126 scsi_deactivate_tcq(sdev, ha->max_q_depth);
1da177e4 1127
8482e118
AV		 1128 rport->dev_loss_tmo = ha->port_down_retry_count + 5;
1129
f4f051eb
AV		 1130 return 0;
1131}
1da177e4 1132
f4f051eb
AV		 1133static void
1134qla2xxx_slave_destroy(struct scsi_device *sdev)
1135{
1136 sdev->hostdata = NULL;
1da177e4
LT		 1137}
1138
ce7e4af7
AV		 1139static int
1140qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth)
1141{
1142 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1143 return sdev->queue_depth;
1144}
1145
1146static int
1147qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1148{
1149 if (sdev->tagged_supported) {
1150 scsi_set_tag_type(sdev, tag_type);
1151 if (tag_type)
1152 scsi_activate_tcq(sdev, sdev->queue_depth);
1153 else
1154 scsi_deactivate_tcq(sdev, sdev->queue_depth);
1155 } else
1156 tag_type = 0;
1157
1158 return tag_type;
1159}
1160
1da177e4
LT		 1161/**
1162 * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1163 * @ha: HA context
1164 *
1165 * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1166 * supported addressing method.
1167 */
1168static void
1169qla2x00_config_dma_addressing(scsi_qla_host_t *ha)
1170{
7524f9b9 1171 /* Assume a 32bit DMA mask. */
1da177e4 1172 ha->flags.enable_64bit_addressing = 0;
1da177e4 1173
7524f9b9
AV		 1174 if (!dma_set_mask(&ha->pdev->dev, DMA_64BIT_MASK)) {
1175 /* Any upper-dword bits set? */
1176 if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1177 !pci_set_consistent_dma_mask(ha->pdev, DMA_64BIT_MASK)) {
1178 /* Ok, a 64bit DMA mask is applicable. */
1da177e4 1179 ha->flags.enable_64bit_addressing = 1;
abbd8870
AV		 1180 ha->isp_ops.calc_req_entries = qla2x00_calc_iocbs_64;
1181 ha->isp_ops.build_iocbs = qla2x00_build_scsi_iocbs_64;
7524f9b9 1182 return;
1da177e4 1183 }
1da177e4 1184 }
7524f9b9
AV		 1185
1186 dma_set_mask(&ha->pdev->dev, DMA_32BIT_MASK);
1187 pci_set_consistent_dma_mask(ha->pdev, DMA_32BIT_MASK);
1da177e4
LT		 1188}
1189
ea5b6382
AV		 1190static inline void
1191qla2x00_set_isp_flags(scsi_qla_host_t *ha)
1192{
1193 ha->device_type = DT_EXTENDED_IDS;
1194 switch (ha->pdev->device) {
1195 case PCI_DEVICE_ID_QLOGIC_ISP2100:
1196 ha->device_type |= DT_ISP2100;
1197 ha->device_type &= ~DT_EXTENDED_IDS;
441d1072 1198 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
ea5b6382
AV		 1199 break;
1200 case PCI_DEVICE_ID_QLOGIC_ISP2200:
1201 ha->device_type |= DT_ISP2200;
1202 ha->device_type &= ~DT_EXTENDED_IDS;
441d1072 1203 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
ea5b6382
AV		 1204 break;
1205 case PCI_DEVICE_ID_QLOGIC_ISP2300:
1206 ha->device_type |= DT_ISP2300;
4a59f71d 1207 ha->device_type |= DT_ZIO_SUPPORTED;
441d1072 1208 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
ea5b6382
AV		 1209 break;
1210 case PCI_DEVICE_ID_QLOGIC_ISP2312:
1211 ha->device_type |= DT_ISP2312;
4a59f71d 1212 ha->device_type |= DT_ZIO_SUPPORTED;
441d1072 1213 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
ea5b6382
AV		 1214 break;
1215 case PCI_DEVICE_ID_QLOGIC_ISP2322:
1216 ha->device_type |= DT_ISP2322;
4a59f71d 1217 ha->device_type |= DT_ZIO_SUPPORTED;
ea5b6382
AV		 1218 if (ha->pdev->subsystem_vendor == 0x1028 &&
1219 ha->pdev->subsystem_device == 0x0170)
1220 ha->device_type |= DT_OEM_001;
441d1072 1221 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
ea5b6382
AV		 1222 break;
1223 case PCI_DEVICE_ID_QLOGIC_ISP6312:
1224 ha->device_type |= DT_ISP6312;
441d1072 1225 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
ea5b6382
AV		 1226 break;
1227 case PCI_DEVICE_ID_QLOGIC_ISP6322:
1228 ha->device_type |= DT_ISP6322;
441d1072 1229 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
ea5b6382
AV		 1230 break;
1231 case PCI_DEVICE_ID_QLOGIC_ISP2422:
1232 ha->device_type |= DT_ISP2422;
4a59f71d 1233 ha->device_type |= DT_ZIO_SUPPORTED;
441d1072 1234 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
ea5b6382
AV		 1235 break;
1236 case PCI_DEVICE_ID_QLOGIC_ISP2432:
1237 ha->device_type |= DT_ISP2432;
4a59f71d 1238 ha->device_type |= DT_ZIO_SUPPORTED;
441d1072 1239 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
ea5b6382 1240 break;
044cc6c8
AV		 1241 case PCI_DEVICE_ID_QLOGIC_ISP5422:
1242 ha->device_type |= DT_ISP5422;
441d1072 1243 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
ea5b6382 1244 break;
044cc6c8
AV		 1245 case PCI_DEVICE_ID_QLOGIC_ISP5432:
1246 ha->device_type |= DT_ISP5432;
441d1072 1247 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
ea5b6382
AV		 1248 break;
1249 }
1250}
1251
1da177e4
LT		 1252static int
1253qla2x00_iospace_config(scsi_qla_host_t *ha)
1254{
1255 unsigned long pio, pio_len, pio_flags;
1256 unsigned long mmio, mmio_len, mmio_flags;
1257
1258 /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1259 pio = pci_resource_start(ha->pdev, 0);
1260 pio_len = pci_resource_len(ha->pdev, 0);
1261 pio_flags = pci_resource_flags(ha->pdev, 0);
1262 if (pio_flags & IORESOURCE_IO) {
1263 if (pio_len < MIN_IOBASE_LEN) {
1264 qla_printk(KERN_WARNING, ha,
1265 "Invalid PCI I/O region size (%s)...\n",
1266 pci_name(ha->pdev));
1267 pio = 0;
1268 }
1269 } else {
1270 qla_printk(KERN_WARNING, ha,
1271 "region #0 not a PIO resource (%s)...\n",
1272 pci_name(ha->pdev));
1273 pio = 0;
1274 }
1275
1276 /* Use MMIO operations for all accesses. */
1277 mmio = pci_resource_start(ha->pdev, 1);
1278 mmio_len = pci_resource_len(ha->pdev, 1);
1279 mmio_flags = pci_resource_flags(ha->pdev, 1);
1280
1281 if (!(mmio_flags & IORESOURCE_MEM)) {
1282 qla_printk(KERN_ERR, ha,
1283 "region #0 not an MMIO resource (%s), aborting\n",
1284 pci_name(ha->pdev));
1285 goto iospace_error_exit;
1286 }
1287 if (mmio_len < MIN_IOBASE_LEN) {
1288 qla_printk(KERN_ERR, ha,
1289 "Invalid PCI mem region size (%s), aborting\n",
1290 pci_name(ha->pdev));
1291 goto iospace_error_exit;
1292 }
1293
cb63067a 1294 if (pci_request_regions(ha->pdev, QLA2XXX_DRIVER_NAME)) {
1da177e4
LT		 1295 qla_printk(KERN_WARNING, ha,
1296 "Failed to reserve PIO/MMIO regions (%s)\n",
1297 pci_name(ha->pdev));
1298
1299 goto iospace_error_exit;
1300 }
1301
1302 ha->pio_address = pio;
1303 ha->pio_length = pio_len;
1304 ha->iobase = ioremap(mmio, MIN_IOBASE_LEN);
1305 if (!ha->iobase) {
1306 qla_printk(KERN_ERR, ha,
1307 "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
1308
1309 goto iospace_error_exit;
1310 }
1311
1312 return (0);
1313
1314iospace_error_exit:
1315 return (-ENOMEM);
1316}
1317
abbd8870
AV		 1318static void
1319qla2x00_enable_intrs(scsi_qla_host_t *ha)
1320{
1321 unsigned long flags = 0;
3d71644c 1322 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
abbd8870
AV		 1323
1324 spin_lock_irqsave(&ha->hardware_lock, flags);
1325 ha->interrupts_on = 1;
1326 /* enable risc and host interrupts */
1327 WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1328 RD_REG_WORD(&reg->ictrl);
1329 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1330
1331}
1332
1333static void
1334qla2x00_disable_intrs(scsi_qla_host_t *ha)
1335{
1336 unsigned long flags = 0;
3d71644c 1337 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
abbd8870
AV		 1338
1339 spin_lock_irqsave(&ha->hardware_lock, flags);
1340 ha->interrupts_on = 0;
1341 /* disable risc and host interrupts */
1342 WRT_REG_WORD(&reg->ictrl, 0);
1343 RD_REG_WORD(&reg->ictrl);
1344 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1345}
1346
fca29703
AV		 1347static void
1348qla24xx_enable_intrs(scsi_qla_host_t *ha)
1349{
1350 unsigned long flags = 0;
1351 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1352
1353 spin_lock_irqsave(&ha->hardware_lock, flags);
1354 ha->interrupts_on = 1;
1355 WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1356 RD_REG_DWORD(&reg->ictrl);
1357 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1358}
1359
1360static void
1361qla24xx_disable_intrs(scsi_qla_host_t *ha)
1362{
1363 unsigned long flags = 0;
1364 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1365
1366 spin_lock_irqsave(&ha->hardware_lock, flags);
1367 ha->interrupts_on = 0;
1368 WRT_REG_DWORD(&reg->ictrl, 0);
1369 RD_REG_DWORD(&reg->ictrl);
1370 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1371}
1372
1e99e33a
AV		 1373static void
1374qla2xxx_scan_start(struct Scsi_Host *shost)
1375{
1376 scsi_qla_host_t *ha = (scsi_qla_host_t *)shost->hostdata;
1377
1378 set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
1379 set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
1380 set_bit(RSCN_UPDATE, &ha->dpc_flags);
1381}
1382
1383static int
1384qla2xxx_scan_finished(struct Scsi_Host *shost, unsigned long time)
1385{
1386 scsi_qla_host_t *ha = (scsi_qla_host_t *)shost->hostdata;
1387
1388 if (!ha->host)
1389 return 1;
1390 if (time > ha->loop_reset_delay * HZ)
1391 return 1;
1392
1393 return atomic_read(&ha->loop_state) == LOOP_READY;
1394}
1395
1da177e4
LT		 1396/*
1397 * PCI driver interface
1398 */
7ee61397
AV		 1399static int __devinit
1400qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
1da177e4 1401{
a1541d5a 1402 int ret = -ENODEV;
fca29703 1403 device_reg_t __iomem *reg;
1da177e4
LT		 1404 struct Scsi_Host *host;
1405 scsi_qla_host_t *ha;
1406 unsigned long flags = 0;
1da177e4
LT		 1407 char pci_info[20];
1408 char fw_str[30];
5433383e 1409 struct scsi_host_template *sht;
1da177e4
LT		 1410
1411 if (pci_enable_device(pdev))
a1541d5a 1412 goto probe_out;
1da177e4 1413
5433383e
AV		 1414 sht = &qla2x00_driver_template;
1415 if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
8bc69e7d
AV		 1416 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432 ||
1417 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5422 ||
1418 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5432)
5433383e
AV		 1419 sht = &qla24xx_driver_template;
1420 host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
1da177e4
LT		 1421 if (host == NULL) {
1422 printk(KERN_WARNING
1423 "qla2xxx: Couldn't allocate host from scsi layer!\n");
1424 goto probe_disable_device;
1425 }
1426
1427 /* Clear our data area */
1428 ha = (scsi_qla_host_t *)host->hostdata;
1429 memset(ha, 0, sizeof(scsi_qla_host_t));
1430
1431 ha->pdev = pdev;
1432 ha->host = host;
1433 ha->host_no = host->host_no;
cb63067a 1434 sprintf(ha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, ha->host_no);
1da177e4 1435
ea5b6382
AV		 1436 /* Set ISP-type information. */
1437 qla2x00_set_isp_flags(ha);
1438
1da177e4
LT		 1439 /* Configure PCI I/O space */
1440 ret = qla2x00_iospace_config(ha);
a1541d5a
AV		 1441 if (ret)
1442 goto probe_failed;
1da177e4 1443
1da177e4 1444 qla_printk(KERN_INFO, ha,
5433383e
AV		 1445 "Found an ISP%04X, irq %d, iobase 0x%p\n", pdev->device, pdev->irq,
1446 ha->iobase);
1da177e4
LT		 1447
1448 spin_lock_init(&ha->hardware_lock);
1449
1da177e4 1450 ha->prev_topology = 0;
fca29703 1451 ha->init_cb_size = sizeof(init_cb_t);
cca5335c 1452 ha->mgmt_svr_loop_id = MANAGEMENT_SERVER;
d8b45213 1453 ha->link_data_rate = PORT_SPEED_UNKNOWN;
854165f4 1454 ha->optrom_size = OPTROM_SIZE_2300;
1da177e4 1455
df7baa50
AV		 1456 ha->max_q_depth = MAX_Q_DEPTH;
1457 if (ql2xmaxqdepth != 0 && ql2xmaxqdepth <= 0xffffU)
1458 ha->max_q_depth = ql2xmaxqdepth;
1459
abbd8870
AV		 1460 /* Assign ISP specific operations. */
1461 ha->isp_ops.pci_config = qla2100_pci_config;
1462 ha->isp_ops.reset_chip = qla2x00_reset_chip;
1463 ha->isp_ops.chip_diag = qla2x00_chip_diag;
1464 ha->isp_ops.config_rings = qla2x00_config_rings;
1465 ha->isp_ops.reset_adapter = qla2x00_reset_adapter;
1466 ha->isp_ops.nvram_config = qla2x00_nvram_config;
1467 ha->isp_ops.update_fw_options = qla2x00_update_fw_options;
0107109e 1468 ha->isp_ops.load_risc = qla2x00_load_risc;
abbd8870
AV		 1469 ha->isp_ops.pci_info_str = qla2x00_pci_info_str;
1470 ha->isp_ops.fw_version_str = qla2x00_fw_version_str;
1471 ha->isp_ops.intr_handler = qla2100_intr_handler;
1472 ha->isp_ops.enable_intrs = qla2x00_enable_intrs;
1473 ha->isp_ops.disable_intrs = qla2x00_disable_intrs;
1474 ha->isp_ops.abort_command = qla2x00_abort_command;
1475 ha->isp_ops.abort_target = qla2x00_abort_target;
1476 ha->isp_ops.fabric_login = qla2x00_login_fabric;
1477 ha->isp_ops.fabric_logout = qla2x00_fabric_logout;
1478 ha->isp_ops.calc_req_entries = qla2x00_calc_iocbs_32;
1479 ha->isp_ops.build_iocbs = qla2x00_build_scsi_iocbs_32;
1480 ha->isp_ops.prep_ms_iocb = qla2x00_prep_ms_iocb;
cca5335c 1481 ha->isp_ops.prep_ms_fdmi_iocb = qla2x00_prep_ms_fdmi_iocb;
459c5378
AV		 1482 ha->isp_ops.read_nvram = qla2x00_read_nvram_data;
1483 ha->isp_ops.write_nvram = qla2x00_write_nvram_data;
abbd8870 1484 ha->isp_ops.fw_dump = qla2100_fw_dump;
854165f4
AV		 1485 ha->isp_ops.read_optrom = qla2x00_read_optrom_data;
1486 ha->isp_ops.write_optrom = qla2x00_write_optrom_data;
1da177e4 1487 if (IS_QLA2100(ha)) {
354d6b21 1488 host->max_id = MAX_TARGETS_2100;
1da177e4
LT		 1489 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
1490 ha->request_q_length = REQUEST_ENTRY_CNT_2100;
1491 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1492 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1493 host->sg_tablesize = 32;
abbd8870 1494 ha->gid_list_info_size = 4;
1da177e4 1495 } else if (IS_QLA2200(ha)) {
354d6b21 1496 host->max_id = MAX_TARGETS_2200;
1da177e4
LT		 1497 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1498 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1499 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1500 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
abbd8870 1501 ha->gid_list_info_size = 4;
fca29703 1502 } else if (IS_QLA23XX(ha)) {
354d6b21 1503 host->max_id = MAX_TARGETS_2200;
1da177e4
LT		 1504 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1505 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1506 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1507 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
abbd8870
AV		 1508 ha->isp_ops.pci_config = qla2300_pci_config;
1509 ha->isp_ops.intr_handler = qla2300_intr_handler;
1510 ha->isp_ops.fw_dump = qla2300_fw_dump;
f6df144c
AV		 1511 ha->isp_ops.beacon_on = qla2x00_beacon_on;
1512 ha->isp_ops.beacon_off = qla2x00_beacon_off;
1513 ha->isp_ops.beacon_blink = qla2x00_beacon_blink;
abbd8870 1514 ha->gid_list_info_size = 6;
854165f4
AV		 1515 if (IS_QLA2322(ha) || IS_QLA6322(ha))
1516 ha->optrom_size = OPTROM_SIZE_2322;
044cc6c8 1517 } else if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
fca29703
AV		 1518 host->max_id = MAX_TARGETS_2200;
1519 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1520 ha->request_q_length = REQUEST_ENTRY_CNT_24XX;
1521 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1522 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1523 ha->init_cb_size = sizeof(struct init_cb_24xx);
cca5335c 1524 ha->mgmt_svr_loop_id = 10;
fca29703
AV		 1525 ha->isp_ops.pci_config = qla24xx_pci_config;
1526 ha->isp_ops.reset_chip = qla24xx_reset_chip;
1527 ha->isp_ops.chip_diag = qla24xx_chip_diag;
1528 ha->isp_ops.config_rings = qla24xx_config_rings;
1529 ha->isp_ops.reset_adapter = qla24xx_reset_adapter;
1530 ha->isp_ops.nvram_config = qla24xx_nvram_config;
1531 ha->isp_ops.update_fw_options = qla24xx_update_fw_options;
5433383e 1532 ha->isp_ops.load_risc = qla24xx_load_risc;
fca29703
AV		 1533 ha->isp_ops.pci_info_str = qla24xx_pci_info_str;
1534 ha->isp_ops.fw_version_str = qla24xx_fw_version_str;
1535 ha->isp_ops.intr_handler = qla24xx_intr_handler;
1536 ha->isp_ops.enable_intrs = qla24xx_enable_intrs;
1537 ha->isp_ops.disable_intrs = qla24xx_disable_intrs;
1538 ha->isp_ops.abort_command = qla24xx_abort_command;
1539 ha->isp_ops.abort_target = qla24xx_abort_target;
1540 ha->isp_ops.fabric_login = qla24xx_login_fabric;
1541 ha->isp_ops.fabric_logout = qla24xx_fabric_logout;
1542 ha->isp_ops.prep_ms_iocb = qla24xx_prep_ms_iocb;
cca5335c 1543 ha->isp_ops.prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb;
fca29703
AV		 1544 ha->isp_ops.read_nvram = qla24xx_read_nvram_data;
1545 ha->isp_ops.write_nvram = qla24xx_write_nvram_data;
1546 ha->isp_ops.fw_dump = qla24xx_fw_dump;
854165f4
AV		 1547 ha->isp_ops.read_optrom = qla24xx_read_optrom_data;
1548 ha->isp_ops.write_optrom = qla24xx_write_optrom_data;
f6df144c
AV		 1549 ha->isp_ops.beacon_on = qla24xx_beacon_on;
1550 ha->isp_ops.beacon_off = qla24xx_beacon_off;
1551 ha->isp_ops.beacon_blink = qla24xx_beacon_blink;
fca29703 1552 ha->gid_list_info_size = 8;
854165f4 1553 ha->optrom_size = OPTROM_SIZE_24XX;
1da177e4
LT		 1554 }
1555 host->can_queue = ha->request_q_length + 128;
1556
1557 /* load the F/W, read paramaters, and init the H/W */
1558 ha->instance = num_hosts;
1559
1560 init_MUTEX(&ha->mbx_cmd_sem);
1561 init_MUTEX_LOCKED(&ha->mbx_intr_sem);
1562
1563 INIT_LIST_HEAD(&ha->list);
1564 INIT_LIST_HEAD(&ha->fcports);
1da177e4
LT		 1565
1566 /*
1567 * These locks are used to prevent more than one CPU
1568 * from modifying the queue at the same time. The
1569 * higher level "host_lock" will reduce most
1570 * contention for these locks.
1571 */
1572 spin_lock_init(&ha->mbx_reg_lock);
1da177e4 1573
1da177e4
LT		 1574 qla2x00_config_dma_addressing(ha);
1575 if (qla2x00_mem_alloc(ha)) {
1576 qla_printk(KERN_WARNING, ha,
1577 "[ERROR] Failed to allocate memory for adapter\n");
1578
a1541d5a
AV		 1579 ret = -ENOMEM;
1580 goto probe_failed;
1da177e4
LT		 1581 }
1582
1583 if (qla2x00_initialize_adapter(ha) &&
1584 !(ha->device_flags & DFLG_NO_CABLE)) {
1585
1586 qla_printk(KERN_WARNING, ha,
1587 "Failed to initialize adapter\n");
1588
1589 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
1590 "Adapter flags %x.\n",
1591 ha->host_no, ha->device_flags));
1592
a1541d5a 1593 ret = -ENODEV;
1da177e4
LT		 1594 goto probe_failed;
1595 }
1596
1597 /*
1598 * Startup the kernel thread for this host adapter
1599 */
39a11240
CH		 1600 ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
1601 "%s_dpc", ha->host_str);
1602 if (IS_ERR(ha->dpc_thread)) {
1da177e4
LT		 1603 qla_printk(KERN_WARNING, ha,
1604 "Unable to start DPC thread!\n");
39a11240 1605 ret = PTR_ERR(ha->dpc_thread);
1da177e4
LT		 1606 goto probe_failed;
1607 }
1da177e4 1608
a1541d5a
AV		 1609 host->this_id = 255;
1610 host->cmd_per_lun = 3;
1611 host->unique_id = ha->instance;
1612 host->max_cmd_len = MAX_CMDSZ;
75bc4190 1613 host->max_channel = MAX_BUSES - 1;
a1541d5a
AV		 1614 host->max_lun = MAX_LUNS;
1615 host->transportt = qla2xxx_transport_template;
1616
fca29703 1617 ret = request_irq(pdev->irq, ha->isp_ops.intr_handler,
1d6f359a 1618 IRQF_DISABLED|IRQF_SHARED, QLA2XXX_DRIVER_NAME, ha);
a1541d5a 1619 if (ret) {
1da177e4
LT		 1620 qla_printk(KERN_WARNING, ha,
1621 "Failed to reserve interrupt %d already in use.\n",
fca29703 1622 pdev->irq);
1da177e4
LT		 1623 goto probe_failed;
1624 }
fca29703 1625 host->irq = pdev->irq;
1da177e4
LT		 1626
1627 /* Initialized the timer */
1628 qla2x00_start_timer(ha, qla2x00_timer, WATCH_INTERVAL);
1629
1630 DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
1631 ha->host_no, ha));
1632
abbd8870 1633 ha->isp_ops.disable_intrs(ha);
1da177e4 1634
1da177e4 1635 spin_lock_irqsave(&ha->hardware_lock, flags);
fca29703 1636 reg = ha->iobase;
044cc6c8 1637 if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
fca29703
AV		 1638 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_HOST_INT);
1639 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_RISC_INT);
1640 } else {
1641 WRT_REG_WORD(&reg->isp.semaphore, 0);
1642 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_RISC_INT);
1643 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_HOST_INT);
1644
1645 /* Enable proper parity */
1646 if (!IS_QLA2100(ha) && !IS_QLA2200(ha)) {
1647 if (IS_QLA2300(ha))
1648 /* SRAM parity */
1649 WRT_REG_WORD(&reg->isp.hccr,
1650 (HCCR_ENABLE_PARITY + 0x1));
1651 else
1652 /* SRAM, Instruction RAM and GP RAM parity */
1653 WRT_REG_WORD(&reg->isp.hccr,
1654 (HCCR_ENABLE_PARITY + 0x7));
1655 }
1da177e4
LT		 1656 }
1657 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1658
abbd8870 1659 ha->isp_ops.enable_intrs(ha);
1da177e4 1660
a1541d5a 1661 pci_set_drvdata(pdev, ha);
d19044c3 1662
1da177e4 1663 ha->flags.init_done = 1;
d19044c3
AV		 1664 ha->flags.online = 1;
1665
1da177e4
LT		 1666 num_hosts++;
1667
a1541d5a
AV		 1668 ret = scsi_add_host(host, &pdev->dev);
1669 if (ret)
1670 goto probe_failed;
1671
1e99e33a
AV		 1672 scsi_scan_host(host);
1673
a1541d5a
AV		 1674 qla2x00_alloc_sysfs_attr(ha);
1675
1676 qla2x00_init_host_attr(ha);
1677
1da177e4
LT		 1678 qla_printk(KERN_INFO, ha, "\n"
1679 " QLogic Fibre Channel HBA Driver: %s\n"
1680 " QLogic %s - %s\n"
5433383e
AV		 1681 " ISP%04X: %s @ %s hdma%c, host#=%ld, fw=%s\n",
1682 qla2x00_version_str, ha->model_number,
1683 ha->model_desc ? ha->model_desc: "", pdev->device,
1684 ha->isp_ops.pci_info_str(ha, pci_info), pci_name(pdev),
1685 ha->flags.enable_64bit_addressing ? '+': '-', ha->host_no,
1686 ha->isp_ops.fw_version_str(ha, fw_str));
1da177e4 1687
1da177e4
LT		 1688 return 0;
1689
1690probe_failed:
1691 qla2x00_free_device(ha);
1692
1693 scsi_host_put(host);
1694
1695probe_disable_device:
1696 pci_disable_device(pdev);
1697
a1541d5a
AV		 1698probe_out:
1699 return ret;
1da177e4 1700}
1da177e4 1701
7ee61397
AV		 1702static void __devexit
1703qla2x00_remove_one(struct pci_dev *pdev)
1da177e4
LT		 1704{
1705 scsi_qla_host_t *ha;
1706
1707 ha = pci_get_drvdata(pdev);
1708
8482e118 1709 qla2x00_free_sysfs_attr(ha);
1da177e4 1710
bdf79621
AV		 1711 fc_remove_host(ha->host);
1712
1da177e4
LT		 1713 scsi_remove_host(ha->host);
1714
1715 qla2x00_free_device(ha);
1716
1717 scsi_host_put(ha->host);
1718
1719 pci_set_drvdata(pdev, NULL);
1720}
1da177e4
LT		 1721
1722static void
1723qla2x00_free_device(scsi_qla_host_t *ha)
1724{
1da177e4
LT		 1725 /* Disable timer */
1726 if (ha->timer_active)
1727 qla2x00_stop_timer(ha);
1728
1729 /* Kill the kernel thread for this host */
39a11240
CH		 1730 if (ha->dpc_thread) {
1731 struct task_struct *t = ha->dpc_thread;
1da177e4 1732
39a11240
CH		 1733 /*
1734 * qla2xxx_wake_dpc checks for ->dpc_thread
1735 * so we need to zero it out.
1736 */
1737 ha->dpc_thread = NULL;
1738 kthread_stop(t);
1da177e4
LT		 1739 }
1740
a7a167bf
AV		 1741 if (ha->eft)
1742 qla2x00_trace_control(ha, TC_DISABLE, 0, 0);
1743
18c6c127
AV		 1744 ha->flags.online = 0;
1745
f6ef3b18 1746 /* Stop currently executing firmware. */
18c6c127 1747 qla2x00_try_to_stop_firmware(ha);
1da177e4 1748
f6ef3b18
AV		 1749 /* turn-off interrupts on the card */
1750 if (ha->interrupts_on)
1751 ha->isp_ops.disable_intrs(ha);
1752
1753 qla2x00_mem_free(ha);
1da177e4 1754
1da177e4 1755 /* Detach interrupts */
77347ff7
ZB		 1756 if (ha->host->irq)
1757 free_irq(ha->host->irq, ha);
1da177e4
LT		 1758
1759 /* release io space registers */
1760 if (ha->iobase)
1761 iounmap(ha->iobase);
1762 pci_release_regions(ha->pdev);
1763
1764 pci_disable_device(ha->pdev);
1765}
1766
d97994dc
AV		 1767static inline void
1768qla2x00_schedule_rport_del(struct scsi_qla_host *ha, fc_port_t *fcport,
1769 int defer)
1770{
1771 unsigned long flags;
1772 struct fc_rport *rport;
1773
1774 if (!fcport->rport)
1775 return;
1776
1777 rport = fcport->rport;
1778 if (defer) {
1779 spin_lock_irqsave(&fcport->rport_lock, flags);
1780 fcport->drport = rport;
1781 fcport->rport = NULL;
387f96b4 1782 *(fc_port_t **)rport->dd_data = NULL;
d97994dc
AV		 1783 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1784 set_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags);
1785 } else {
1786 spin_lock_irqsave(&fcport->rport_lock, flags);
1787 fcport->rport = NULL;
387f96b4 1788 *(fc_port_t **)rport->dd_data = NULL;
d97994dc
AV		 1789 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1790 fc_remote_port_delete(rport);
1791 }
1792}
1793
1da177e4
LT		 1794/*
1795 * qla2x00_mark_device_lost Updates fcport state when device goes offline.
1796 *
1797 * Input: ha = adapter block pointer. fcport = port structure pointer.
1798 *
1799 * Return: None.
1800 *
1801 * Context:
1802 */
1803void qla2x00_mark_device_lost(scsi_qla_host_t *ha, fc_port_t *fcport,
d97994dc 1804 int do_login, int defer)
1da177e4 1805{
d97994dc
AV		 1806 if (atomic_read(&fcport->state) == FCS_ONLINE)
1807 qla2x00_schedule_rport_del(ha, fcport, defer);
19a7b4ae 1808
fa2a1ce5 1809 /*
1da177e4
LT		 1810 * We may need to retry the login, so don't change the state of the
1811 * port but do the retries.
1812 */
1813 if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
1814 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1815
1816 if (!do_login)
1817 return;
1818
1819 if (fcport->login_retry == 0) {
1820 fcport->login_retry = ha->login_retry_count;
1821 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
1822
1823 DEBUG(printk("scsi(%ld): Port login retry: "
1824 "%02x%02x%02x%02x%02x%02x%02x%02x, "
1825 "id = 0x%04x retry cnt=%d\n",
1826 ha->host_no,
1827 fcport->port_name[0],
1828 fcport->port_name[1],
1829 fcport->port_name[2],
1830 fcport->port_name[3],
1831 fcport->port_name[4],
1832 fcport->port_name[5],
1833 fcport->port_name[6],
1834 fcport->port_name[7],
1835 fcport->loop_id,
1836 fcport->login_retry));
1837 }
1838}
1839
1840/*
1841 * qla2x00_mark_all_devices_lost
1842 * Updates fcport state when device goes offline.
1843 *
1844 * Input:
1845 * ha = adapter block pointer.
1846 * fcport = port structure pointer.
1847 *
1848 * Return:
1849 * None.
1850 *
1851 * Context:
1852 */
1853void
d97994dc 1854qla2x00_mark_all_devices_lost(scsi_qla_host_t *ha, int defer)
1da177e4
LT		 1855{
1856 fc_port_t *fcport;
1857
1858 list_for_each_entry(fcport, &ha->fcports, list) {
1859 if (fcport->port_type != FCT_TARGET)
1860 continue;
1861
1862 /*
1863 * No point in marking the device as lost, if the device is
1864 * already DEAD.
1865 */
1866 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
1867 continue;
d97994dc
AV		 1868 if (atomic_read(&fcport->state) == FCS_ONLINE)
1869 qla2x00_schedule_rport_del(ha, fcport, defer);
1da177e4
LT		 1870 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1871 }
d97994dc 1872
39a11240
CH		 1873 if (defer)
1874 qla2xxx_wake_dpc(ha);
1da177e4
LT		 1875}
1876
1877/*
1878* qla2x00_mem_alloc
1879* Allocates adapter memory.
1880*
1881* Returns:
1882* 0 = success.
1883* 1 = failure.
1884*/
1885static uint8_t
1886qla2x00_mem_alloc(scsi_qla_host_t *ha)
1887{
1888 char name[16];
1889 uint8_t status = 1;
1890 int retry= 10;
1891
1892 do {
1893 /*
1894 * This will loop only once if everything goes well, else some
1895 * number of retries will be performed to get around a kernel
1896 * bug where available mem is not allocated until after a
1897 * little delay and a retry.
1898 */
1899 ha->request_ring = dma_alloc_coherent(&ha->pdev->dev,
1900 (ha->request_q_length + 1) * sizeof(request_t),
1901 &ha->request_dma, GFP_KERNEL);
1902 if (ha->request_ring == NULL) {
1903 qla_printk(KERN_WARNING, ha,
1904 "Memory Allocation failed - request_ring\n");
1905
1906 qla2x00_mem_free(ha);
1907 msleep(100);
1908
1909 continue;
1910 }
1911
1912 ha->response_ring = dma_alloc_coherent(&ha->pdev->dev,
1913 (ha->response_q_length + 1) * sizeof(response_t),
1914 &ha->response_dma, GFP_KERNEL);
1915 if (ha->response_ring == NULL) {
1916 qla_printk(KERN_WARNING, ha,
1917 "Memory Allocation failed - response_ring\n");
1918
1919 qla2x00_mem_free(ha);
1920 msleep(100);
1921
1922 continue;
1923 }
1924
1925 ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
1926 &ha->gid_list_dma, GFP_KERNEL);
1927 if (ha->gid_list == NULL) {
1928 qla_printk(KERN_WARNING, ha,
1929 "Memory Allocation failed - gid_list\n");
1930
1931 qla2x00_mem_free(ha);
1932 msleep(100);
1933
1934 continue;
1935 }
1936
cb63067a
AV		 1937 snprintf(name, sizeof(name), "%s_%ld", QLA2XXX_DRIVER_NAME,
1938 ha->host_no);
1da177e4
LT		 1939 ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
1940 DMA_POOL_SIZE, 8, 0);
1941 if (ha->s_dma_pool == NULL) {
1942 qla_printk(KERN_WARNING, ha,
1943 "Memory Allocation failed - s_dma_pool\n");
1944
1945 qla2x00_mem_free(ha);
1946 msleep(100);
1947
1948 continue;
1949 }
1950
1951 /* get consistent memory allocated for init control block */
1952 ha->init_cb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
1953 &ha->init_cb_dma);
1954 if (ha->init_cb == NULL) {
1955 qla_printk(KERN_WARNING, ha,
1956 "Memory Allocation failed - init_cb\n");
1957
1958 qla2x00_mem_free(ha);
1959 msleep(100);
1960
1961 continue;
1962 }
fca29703 1963 memset(ha->init_cb, 0, ha->init_cb_size);
1da177e4 1964
1da177e4
LT		 1965 if (qla2x00_allocate_sp_pool(ha)) {
1966 qla_printk(KERN_WARNING, ha,
1967 "Memory Allocation failed - "
1968 "qla2x00_allocate_sp_pool()\n");
1969
1970 qla2x00_mem_free(ha);
1971 msleep(100);
1972
1973 continue;
1974 }
1975
1976 /* Allocate memory for SNS commands */
1977 if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
1978 /* Get consistent memory allocated for SNS commands */
1979 ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
1980 sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma,
1981 GFP_KERNEL);
1982 if (ha->sns_cmd == NULL) {
1983 /* error */
1984 qla_printk(KERN_WARNING, ha,
1985 "Memory Allocation failed - sns_cmd\n");
1986
1987 qla2x00_mem_free(ha);
1988 msleep(100);
1989
1990 continue;
1991 }
1992 memset(ha->sns_cmd, 0, sizeof(struct sns_cmd_pkt));
1993 } else {
1994 /* Get consistent memory allocated for MS IOCB */
1995 ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
1996 &ha->ms_iocb_dma);
1997 if (ha->ms_iocb == NULL) {
1998 /* error */
1999 qla_printk(KERN_WARNING, ha,
2000 "Memory Allocation failed - ms_iocb\n");
2001
2002 qla2x00_mem_free(ha);
2003 msleep(100);
2004
2005 continue;
2006 }
2007 memset(ha->ms_iocb, 0, sizeof(ms_iocb_entry_t));
2008
2009 /*
2010 * Get consistent memory allocated for CT SNS
2011 * commands
2012 */
2013 ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
2014 sizeof(struct ct_sns_pkt), &ha->ct_sns_dma,
2015 GFP_KERNEL);
2016 if (ha->ct_sns == NULL) {
2017 /* error */
2018 qla_printk(KERN_WARNING, ha,
2019 "Memory Allocation failed - ct_sns\n");
2020
2021 qla2x00_mem_free(ha);
2022 msleep(100);
2023
2024 continue;
2025 }
2026 memset(ha->ct_sns, 0, sizeof(struct ct_sns_pkt));
88729e53
AV		 2027
2028 if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
2029 /*
2030 * Get consistent memory allocated for SFP
2031 * block.
2032 */
2033 ha->sfp_data = dma_pool_alloc(ha->s_dma_pool,
2034 GFP_KERNEL, &ha->sfp_data_dma);
2035 if (ha->sfp_data == NULL) {
2036 qla_printk(KERN_WARNING, ha,
2037 "Memory Allocation failed - "
2038 "sfp_data\n");
2039
2040 qla2x00_mem_free(ha);
2041 msleep(100);
2042
2043 continue;
2044 }
2045 memset(ha->sfp_data, 0, SFP_BLOCK_SIZE);
2046 }
1da177e4
LT		 2047 }
2048
2049 /* Done all allocations without any error. */
2050 status = 0;
2051
2052 } while (retry-- && status != 0);
2053
2054 if (status) {
2055 printk(KERN_WARNING
2056 "%s(): **** FAILED ****\n", __func__);
2057 }
2058
2059 return(status);
2060}
2061
2062/*
2063* qla2x00_mem_free
2064* Frees all adapter allocated memory.
2065*
2066* Input:
2067* ha = adapter block pointer.
2068*/
2069static void
2070qla2x00_mem_free(scsi_qla_host_t *ha)
2071{
1da177e4
LT		 2072 struct list_head *fcpl, *fcptemp;
2073 fc_port_t *fcport;
1da177e4
LT		 2074
2075 if (ha == NULL) {
2076 /* error */
2077 DEBUG2(printk("%s(): ERROR invalid ha pointer.\n", __func__));
2078 return;
2079 }
2080
1da177e4
LT		 2081 /* free sp pool */
2082 qla2x00_free_sp_pool(ha);
2083
a7a167bf
AV		 2084 if (ha->fw_dump) {
2085 if (ha->eft)
2086 dma_free_coherent(&ha->pdev->dev,
2087 ntohl(ha->fw_dump->eft_size), ha->eft, ha->eft_dma);
2088 vfree(ha->fw_dump);
2089 }
2090
1da177e4
LT		 2091 if (ha->sns_cmd)
2092 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
2093 ha->sns_cmd, ha->sns_cmd_dma);
2094
2095 if (ha->ct_sns)
2096 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2097 ha->ct_sns, ha->ct_sns_dma);
2098
88729e53
AV		 2099 if (ha->sfp_data)
2100 dma_pool_free(ha->s_dma_pool, ha->sfp_data, ha->sfp_data_dma);
2101
1da177e4
LT		 2102 if (ha->ms_iocb)
2103 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2104
1da177e4
LT		 2105 if (ha->init_cb)
2106 dma_pool_free(ha->s_dma_pool, ha->init_cb, ha->init_cb_dma);
2107
2108 if (ha->s_dma_pool)
2109 dma_pool_destroy(ha->s_dma_pool);
2110
1da177e4
LT		 2111 if (ha->gid_list)
2112 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2113 ha->gid_list_dma);
2114
2115 if (ha->response_ring)
2116 dma_free_coherent(&ha->pdev->dev,
2117 (ha->response_q_length + 1) * sizeof(response_t),
2118 ha->response_ring, ha->response_dma);
2119
2120 if (ha->request_ring)
2121 dma_free_coherent(&ha->pdev->dev,
2122 (ha->request_q_length + 1) * sizeof(request_t),
2123 ha->request_ring, ha->request_dma);
2124
a7a167bf
AV		 2125 ha->eft = NULL;
2126 ha->eft_dma = 0;
1da177e4
LT		 2127 ha->sns_cmd = NULL;
2128 ha->sns_cmd_dma = 0;
2129 ha->ct_sns = NULL;
2130 ha->ct_sns_dma = 0;
2131 ha->ms_iocb = NULL;
2132 ha->ms_iocb_dma = 0;
1da177e4
LT		 2133 ha->init_cb = NULL;
2134 ha->init_cb_dma = 0;
2135
2136 ha->s_dma_pool = NULL;
2137
1da177e4
LT		 2138 ha->gid_list = NULL;
2139 ha->gid_list_dma = 0;
2140
2141 ha->response_ring = NULL;
2142 ha->response_dma = 0;
2143 ha->request_ring = NULL;
2144 ha->request_dma = 0;
2145
2146 list_for_each_safe(fcpl, fcptemp, &ha->fcports) {
2147 fcport = list_entry(fcpl, fc_port_t, list);
2148
1da177e4
LT		 2149 /* fc ports */
2150 list_del_init(&fcport->list);
2151 kfree(fcport);
2152 }
2153 INIT_LIST_HEAD(&ha->fcports);
2154
1da177e4 2155 ha->fw_dump = NULL;
fca29703 2156 ha->fw_dumped = 0;
1da177e4 2157 ha->fw_dump_reading = 0;
854165f4
AV		 2158
2159 vfree(ha->optrom_buffer);
1da177e4
LT		 2160}
2161
2162/*
2163 * qla2x00_allocate_sp_pool
2164 * This routine is called during initialization to allocate
2165 * memory for local srb_t.
2166 *
2167 * Input:
2168 * ha = adapter block pointer.
2169 *
2170 * Context:
2171 * Kernel context.
1da177e4
LT		 2172 */
2173static int
fa2a1ce5 2174qla2x00_allocate_sp_pool(scsi_qla_host_t *ha)
1da177e4
LT		 2175{
2176 int rval;
2177
2178 rval = QLA_SUCCESS;
93d2341c 2179 ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
1da177e4
LT		 2180 if (ha->srb_mempool == NULL) {
2181 qla_printk(KERN_INFO, ha, "Unable to allocate SRB mempool.\n");
2182 rval = QLA_FUNCTION_FAILED;
2183 }
2184 return (rval);
2185}
2186
2187/*
2188 * This routine frees all adapter allocated memory.
fa2a1ce5 2189 *
1da177e4
LT		 2190 */
2191static void
fa2a1ce5 2192qla2x00_free_sp_pool( scsi_qla_host_t *ha)
1da177e4
LT		 2193{
2194 if (ha->srb_mempool) {
2195 mempool_destroy(ha->srb_mempool);
2196 ha->srb_mempool = NULL;
2197 }
2198}
2199
2200/**************************************************************************
2201* qla2x00_do_dpc
2202* This kernel thread is a task that is schedule by the interrupt handler
2203* to perform the background processing for interrupts.
2204*
2205* Notes:
2206* This task always run in the context of a kernel thread. It
2207* is kick-off by the driver's detect code and starts up
2208* up one per adapter. It immediately goes to sleep and waits for
2209* some fibre event. When either the interrupt handler or
2210* the timer routine detects a event it will one of the task
2211* bits then wake us up.
2212**************************************************************************/
2213static int
2214qla2x00_do_dpc(void *data)
2215{
1da177e4
LT		 2216 scsi_qla_host_t *ha;
2217 fc_port_t *fcport;
1da177e4 2218 uint8_t status;
1da177e4 2219 uint16_t next_loopid;
1da177e4
LT		 2220
2221 ha = (scsi_qla_host_t *)data;
2222
1da177e4
LT		 2223 set_user_nice(current, -20);
2224
39a11240 2225 while (!kthread_should_stop()) {
1da177e4
LT		 2226 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
2227
39a11240
CH		 2228 set_current_state(TASK_INTERRUPTIBLE);
2229 schedule();
2230 __set_current_state(TASK_RUNNING);
1da177e4
LT		 2231
2232 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
2233
2234 /* Initialization not yet finished. Don't do anything yet. */
39a11240 2235 if (!ha->flags.init_done)
1da177e4
LT		 2236 continue;
2237
2238 DEBUG3(printk("scsi(%ld): DPC handler\n", ha->host_no));
2239
2240 ha->dpc_active = 1;
2241
1da177e4 2242 if (ha->flags.mbox_busy) {
1da177e4
LT		 2243 ha->dpc_active = 0;
2244 continue;
2245 }
2246
2247 if (test_and_clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) {
2248
2249 DEBUG(printk("scsi(%ld): dpc: sched "
2250 "qla2x00_abort_isp ha = %p\n",
2251 ha->host_no, ha));
2252 if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
2253 &ha->dpc_flags))) {
2254
2255 if (qla2x00_abort_isp(ha)) {
2256 /* failed. retry later */
2257 set_bit(ISP_ABORT_NEEDED,
2258 &ha->dpc_flags);
2259 }
2260 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2261 }
2262 DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
2263 ha->host_no));
2264 }
2265
d97994dc
AV		 2266 if (test_and_clear_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags))
2267 qla2x00_update_fcports(ha);
2268
91ca7b01
AV		 2269 if (test_and_clear_bit(LOOP_RESET_NEEDED, &ha->dpc_flags)) {
2270 DEBUG(printk("scsi(%ld): dpc: sched loop_reset()\n",
2271 ha->host_no));
2272 qla2x00_loop_reset(ha);
2273 }
2274
1da177e4
LT		 2275 if (test_and_clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) &&
2276 (!(test_and_set_bit(RESET_ACTIVE, &ha->dpc_flags)))) {
2277
2278 DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
2279 ha->host_no));
2280
2281 qla2x00_rst_aen(ha);
2282 clear_bit(RESET_ACTIVE, &ha->dpc_flags);
2283 }
2284
2285 /* Retry each device up to login retry count */
2286 if ((test_and_clear_bit(RELOGIN_NEEDED, &ha->dpc_flags)) &&
2287 !test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) &&
2288 atomic_read(&ha->loop_state) != LOOP_DOWN) {
2289
2290 DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
2291 ha->host_no));
2292
2293 next_loopid = 0;
2294 list_for_each_entry(fcport, &ha->fcports, list) {
1da177e4
LT		 2295 /*
2296 * If the port is not ONLINE then try to login
2297 * to it if we haven't run out of retries.
2298 */
2299 if (atomic_read(&fcport->state) != FCS_ONLINE &&
2300 fcport->login_retry) {
2301
2302 fcport->login_retry--;
2303 if (fcport->flags & FCF_FABRIC_DEVICE) {
2304 if (fcport->flags &
2305 FCF_TAPE_PRESENT)
abbd8870 2306 ha->isp_ops.fabric_logout(
1c7c6357
AV		 2307 ha, fcport->loop_id,
2308 fcport->d_id.b.domain,
2309 fcport->d_id.b.area,
2310 fcport->d_id.b.al_pa);
1da177e4
LT		 2311 status = qla2x00_fabric_login(
2312 ha, fcport, &next_loopid);
2313 } else
2314 status =
2315 qla2x00_local_device_login(
9a52a57c 2316 ha, fcport);
1da177e4
LT		 2317
2318 if (status == QLA_SUCCESS) {
2319 fcport->old_loop_id = fcport->loop_id;
2320
2321 DEBUG(printk("scsi(%ld): port login OK: logged in ID 0x%x\n",
2322 ha->host_no, fcport->loop_id));
fa2a1ce5 2323
052c40c8
AV		 2324 qla2x00_update_fcport(ha,
2325 fcport);
1da177e4
LT		 2326 } else if (status == 1) {
2327 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
2328 /* retry the login again */
2329 DEBUG(printk("scsi(%ld): Retrying %d login again loop_id 0x%x\n",
2330 ha->host_no,
2331 fcport->login_retry, fcport->loop_id));
2332 } else {
2333 fcport->login_retry = 0;
2334 }
2335 }
2336 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2337 break;
2338 }
2339 DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
2340 ha->host_no));
2341 }
2342
2343 if ((test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags)) &&
2344 atomic_read(&ha->loop_state) != LOOP_DOWN) {
2345
2346 clear_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags);
2347 DEBUG(printk("scsi(%ld): qla2x00_login_retry()\n",
2348 ha->host_no));
fa2a1ce5 2349
1da177e4
LT		 2350 set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
2351
2352 DEBUG(printk("scsi(%ld): qla2x00_login_retry - end\n",
2353 ha->host_no));
2354 }
2355
2356 if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
2357
2358 DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
2359 ha->host_no));
2360
2361 if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
2362 &ha->dpc_flags))) {
2363
2364 qla2x00_loop_resync(ha);
2365
2366 clear_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags);
2367 }
2368
2369 DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
2370 ha->host_no));
2371 }
2372
1da177e4
LT		 2373 if (test_and_clear_bit(FCPORT_RESCAN_NEEDED, &ha->dpc_flags)) {
2374
2375 DEBUG(printk("scsi(%ld): Rescan flagged fcports...\n",
2376 ha->host_no));
2377
2378 qla2x00_rescan_fcports(ha);
2379
2380 DEBUG(printk("scsi(%ld): Rescan flagged fcports..."
2381 "end.\n",
2382 ha->host_no));
2383 }
2384
1da177e4 2385 if (!ha->interrupts_on)
abbd8870 2386 ha->isp_ops.enable_intrs(ha);
1da177e4 2387
f6df144c
AV		 2388 if (test_and_clear_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags))
2389 ha->isp_ops.beacon_blink(ha);
2390
1da177e4
LT		 2391 ha->dpc_active = 0;
2392 } /* End of while(1) */
2393
2394 DEBUG(printk("scsi(%ld): DPC handler exiting\n", ha->host_no));
2395
2396 /*
2397 * Make sure that nobody tries to wake us up again.
2398 */
1da177e4
LT		 2399 ha->dpc_active = 0;
2400
39a11240
CH		 2401 return 0;
2402}
2403
2404void
2405qla2xxx_wake_dpc(scsi_qla_host_t *ha)
2406{
2407 if (ha->dpc_thread)
2408 wake_up_process(ha->dpc_thread);
1da177e4
LT		 2409}
2410
1da177e4
LT		 2411/*
2412* qla2x00_rst_aen
2413* Processes asynchronous reset.
2414*
2415* Input:
2416* ha = adapter block pointer.
2417*/
2418static void
fa2a1ce5 2419qla2x00_rst_aen(scsi_qla_host_t *ha)
1da177e4
LT		 2420{
2421 if (ha->flags.online && !ha->flags.reset_active &&
2422 !atomic_read(&ha->loop_down_timer) &&
2423 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) {
2424 do {
2425 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
2426
2427 /*
2428 * Issue marker command only when we are going to start
2429 * the I/O.
2430 */
2431 ha->marker_needed = 1;
2432 } while (!atomic_read(&ha->loop_down_timer) &&
2433 (test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags)));
2434 }
2435}
2436
f4f051eb
AV		 2437static void
2438qla2x00_sp_free_dma(scsi_qla_host_t *ha, srb_t *sp)
2439{
2440 struct scsi_cmnd *cmd = sp->cmd;
2441
2442 if (sp->flags & SRB_DMA_VALID) {
2443 if (cmd->use_sg) {
2444 dma_unmap_sg(&ha->pdev->dev, cmd->request_buffer,
2445 cmd->use_sg, cmd->sc_data_direction);
2446 } else if (cmd->request_bufflen) {
2447 dma_unmap_single(&ha->pdev->dev, sp->dma_handle,
2448 cmd->request_bufflen, cmd->sc_data_direction);
2449 }
2450 sp->flags &= ~SRB_DMA_VALID;
2451 }
fca29703 2452 CMD_SP(cmd) = NULL;
f4f051eb
AV		 2453}
2454
2455void
2456qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *sp)
2457{
2458 struct scsi_cmnd *cmd = sp->cmd;
2459
2460 qla2x00_sp_free_dma(ha, sp);
2461
f4f051eb
AV		 2462 mempool_free(sp, ha->srb_mempool);
2463
2464 cmd->scsi_done(cmd);
2465}
bdf79621 2466
1da177e4
LT		 2467/**************************************************************************
2468* qla2x00_timer
2469*
2470* Description:
2471* One second timer
2472*
2473* Context: Interrupt
2474***************************************************************************/
2475static void
2476qla2x00_timer(scsi_qla_host_t *ha)
2477{
1da177e4
LT		 2478 unsigned long cpu_flags = 0;
2479 fc_port_t *fcport;
1da177e4
LT		 2480 int start_dpc = 0;
2481 int index;
2482 srb_t *sp;
f4f051eb 2483 int t;
1da177e4
LT		 2484
2485 /*
2486 * Ports - Port down timer.
2487 *
2488 * Whenever, a port is in the LOST state we start decrementing its port
2489 * down timer every second until it reaches zero. Once it reaches zero
fa2a1ce5 2490 * the port it marked DEAD.
1da177e4
LT		 2491 */
2492 t = 0;
2493 list_for_each_entry(fcport, &ha->fcports, list) {
2494 if (fcport->port_type != FCT_TARGET)
2495 continue;
2496
2497 if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
2498
2499 if (atomic_read(&fcport->port_down_timer) == 0)
2500 continue;
2501
fa2a1ce5 2502 if (atomic_dec_and_test(&fcport->port_down_timer) != 0)
1da177e4 2503 atomic_set(&fcport->state, FCS_DEVICE_DEAD);
fa2a1ce5 2504
1da177e4 2505 DEBUG(printk("scsi(%ld): fcport-%d - port retry count: "
fca29703 2506 "%d remaining\n",
1da177e4
LT		 2507 ha->host_no,
2508 t, atomic_read(&fcport->port_down_timer)));
2509 }
2510 t++;
2511 } /* End of for fcport */
2512
1da177e4
LT		 2513
2514 /* Loop down handler. */
2515 if (atomic_read(&ha->loop_down_timer) > 0 &&
2516 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags)) && ha->flags.online) {
2517
2518 if (atomic_read(&ha->loop_down_timer) ==
2519 ha->loop_down_abort_time) {
2520
2521 DEBUG(printk("scsi(%ld): Loop Down - aborting the "
2522 "queues before time expire\n",
2523 ha->host_no));
2524
2525 if (!IS_QLA2100(ha) && ha->link_down_timeout)
fa2a1ce5 2526 atomic_set(&ha->loop_state, LOOP_DEAD);
1da177e4
LT		 2527
2528 /* Schedule an ISP abort to return any tape commands. */
2529 spin_lock_irqsave(&ha->hardware_lock, cpu_flags);
2530 for (index = 1; index < MAX_OUTSTANDING_COMMANDS;
2531 index++) {
bdf79621
AV		 2532 fc_port_t *sfcp;
2533
1da177e4
LT		 2534 sp = ha->outstanding_cmds[index];
2535 if (!sp)
2536 continue;
bdf79621
AV		 2537 sfcp = sp->fcport;
2538 if (!(sfcp->flags & FCF_TAPE_PRESENT))
1da177e4
LT		 2539 continue;
2540
2541 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2542 break;
2543 }
2544 spin_unlock_irqrestore(&ha->hardware_lock, cpu_flags);
2545
2546 set_bit(ABORT_QUEUES_NEEDED, &ha->dpc_flags);
2547 start_dpc++;
2548 }
2549
2550 /* if the loop has been down for 4 minutes, reinit adapter */
2551 if (atomic_dec_and_test(&ha->loop_down_timer) != 0) {
2552 DEBUG(printk("scsi(%ld): Loop down exceed 4 mins - "
2553 "restarting queues.\n",
2554 ha->host_no));
2555
2556 set_bit(RESTART_QUEUES_NEEDED, &ha->dpc_flags);
2557 start_dpc++;
2558
2559 if (!(ha->device_flags & DFLG_NO_CABLE)) {
2560 DEBUG(printk("scsi(%ld): Loop down - "
2561 "aborting ISP.\n",
2562 ha->host_no));
2563 qla_printk(KERN_WARNING, ha,
2564 "Loop down - aborting ISP.\n");
2565
2566 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2567 }
2568 }
fca29703 2569 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
1da177e4
LT		 2570 ha->host_no,
2571 atomic_read(&ha->loop_down_timer)));
2572 }
2573
f6df144c
AV		 2574 /* Check if beacon LED needs to be blinked */
2575 if (ha->beacon_blink_led == 1) {
2576 set_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags);
2577 start_dpc++;
2578 }
2579
1da177e4
LT		 2580 /* Schedule the DPC routine if needed */
2581 if ((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags) ||
2582 test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) ||
91ca7b01 2583 test_bit(LOOP_RESET_NEEDED, &ha->dpc_flags) ||
d97994dc 2584 test_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags) ||
1da177e4
LT		 2585 start_dpc ||
2586 test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags) ||
f4f051eb 2587 test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) ||
f6df144c 2588 test_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags) ||
39a11240
CH		 2589 test_bit(RELOGIN_NEEDED, &ha->dpc_flags)))
2590 qla2xxx_wake_dpc(ha);
1da177e4
LT		 2591
2592 qla2x00_restart_timer(ha, WATCH_INTERVAL);
2593}
2594
1da177e4
LT		 2595/* XXX(hch): crude hack to emulate a down_timeout() */
2596int
2597qla2x00_down_timeout(struct semaphore *sema, unsigned long timeout)
2598{
fe74c71f
AV		 2599 const unsigned int step = 100; /* msecs */
2600 unsigned int iterations = jiffies_to_msecs(timeout)/100;
1da177e4
LT		 2601
2602 do {
2603 if (!down_trylock(sema))
2604 return 0;
fe74c71f 2605 if (msleep_interruptible(step))
1da177e4 2606 break;
fe74c71f 2607 } while (--iterations >= 0);
1da177e4
LT		 2608
2609 return -ETIMEDOUT;
2610}
2611
5433383e
AV		 2612/* Firmware interface routines. */
2613
48c02fde 2614#define FW_BLOBS 5
5433383e
AV		 2615#define FW_ISP21XX 0
2616#define FW_ISP22XX 1
2617#define FW_ISP2300 2
2618#define FW_ISP2322 3
48c02fde 2619#define FW_ISP24XX 4
5433383e 2620
bb8ee499
AV		 2621#define FW_FILE_ISP21XX "ql2100_fw.bin"
2622#define FW_FILE_ISP22XX "ql2200_fw.bin"
2623#define FW_FILE_ISP2300 "ql2300_fw.bin"
2624#define FW_FILE_ISP2322 "ql2322_fw.bin"
2625#define FW_FILE_ISP24XX "ql2400_fw.bin"
2626
5433383e
AV		 2627static DECLARE_MUTEX(qla_fw_lock);
2628
2629static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
bb8ee499
AV		 2630 { .name = FW_FILE_ISP21XX, .segs = { 0x1000, 0 }, },
2631 { .name = FW_FILE_ISP22XX, .segs = { 0x1000, 0 }, },
2632 { .name = FW_FILE_ISP2300, .segs = { 0x800, 0 }, },
2633 { .name = FW_FILE_ISP2322, .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
2634 { .name = FW_FILE_ISP24XX, },
5433383e
AV		 2635};
2636
2637struct fw_blob *
2638qla2x00_request_firmware(scsi_qla_host_t *ha)
2639{
2640 struct fw_blob *blob;
2641
2642 blob = NULL;
2643 if (IS_QLA2100(ha)) {
2644 blob = &qla_fw_blobs[FW_ISP21XX];
2645 } else if (IS_QLA2200(ha)) {
2646 blob = &qla_fw_blobs[FW_ISP22XX];
48c02fde 2647 } else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
5433383e 2648 blob = &qla_fw_blobs[FW_ISP2300];
48c02fde 2649 } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
5433383e 2650 blob = &qla_fw_blobs[FW_ISP2322];
044cc6c8 2651 } else if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
5433383e
AV		 2652 blob = &qla_fw_blobs[FW_ISP24XX];
2653 }
2654
2655 down(&qla_fw_lock);
2656 if (blob->fw)
2657 goto out;
2658
2659 if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
2660 DEBUG2(printk("scsi(%ld): Failed to load firmware image "
2661 "(%s).\n", ha->host_no, blob->name));
2662 blob->fw = NULL;
2663 blob = NULL;
2664 goto out;
2665 }
2666
2667out:
2668 up(&qla_fw_lock);
2669 return blob;
2670}
2671
2672static void
2673qla2x00_release_firmware(void)
2674{
2675 int idx;
2676
2677 down(&qla_fw_lock);
2678 for (idx = 0; idx < FW_BLOBS; idx++)
2679 if (qla_fw_blobs[idx].fw)
2680 release_firmware(qla_fw_blobs[idx].fw);
2681 up(&qla_fw_lock);
2682}
2683
5433383e 2684static struct pci_device_id qla2xxx_pci_tbl[] = {
47f5e069
AV		 2685 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
2686 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
2687 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
2688 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
2689 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
2690 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
2691 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
2692 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
2693 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
2694 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
2695 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
5433383e
AV		 2696 { 0 },
2697};
2698MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
2699
fca29703 2700static struct pci_driver qla2xxx_pci_driver = {
cb63067a 2701 .name = QLA2XXX_DRIVER_NAME,
0a21ef1e
JB		 2702 .driver = {
2703 .owner = THIS_MODULE,
2704 },
fca29703 2705 .id_table = qla2xxx_pci_tbl,
7ee61397
AV		 2706 .probe = qla2x00_probe_one,
2707 .remove = __devexit_p(qla2x00_remove_one),
fca29703
AV		 2708};
2709
1da177e4
LT		 2710/**
2711 * qla2x00_module_init - Module initialization.
2712 **/
2713static int __init
2714qla2x00_module_init(void)
2715{
fca29703
AV		 2716 int ret = 0;
2717
1da177e4 2718 /* Allocate cache for SRBs. */
354d6b21 2719 srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
1da177e4
LT		 2720 SLAB_HWCACHE_ALIGN, NULL, NULL);
2721 if (srb_cachep == NULL) {
2722 printk(KERN_ERR
2723 "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
2724 return -ENOMEM;
2725 }
2726
2727 /* Derive version string. */
2728 strcpy(qla2x00_version_str, QLA2XXX_VERSION);
11010fec 2729 if (ql2xextended_error_logging)
0181944f
AV		 2730 strcat(qla2x00_version_str, "-debug");
2731
1c97a12a
AV		 2732 qla2xxx_transport_template =
2733 fc_attach_transport(&qla2xxx_transport_functions);
1da177e4
LT		 2734 if (!qla2xxx_transport_template)
2735 return -ENODEV;
2736
2737 printk(KERN_INFO "QLogic Fibre Channel HBA Driver\n");
7ee61397 2738 ret = pci_register_driver(&qla2xxx_pci_driver);
fca29703
AV		 2739 if (ret) {
2740 kmem_cache_destroy(srb_cachep);
2741 fc_release_transport(qla2xxx_transport_template);
2742 }
2743 return ret;
1da177e4
LT		 2744}
2745
2746/**
2747 * qla2x00_module_exit - Module cleanup.
2748 **/
2749static void __exit
2750qla2x00_module_exit(void)
2751{
7ee61397 2752 pci_unregister_driver(&qla2xxx_pci_driver);
5433383e 2753 qla2x00_release_firmware();
354d6b21 2754 kmem_cache_destroy(srb_cachep);
1da177e4
LT		 2755 fc_release_transport(qla2xxx_transport_template);
2756}
2757
2758module_init(qla2x00_module_init);
2759module_exit(qla2x00_module_exit);
2760
2761MODULE_AUTHOR("QLogic Corporation");
2762MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
2763MODULE_LICENSE("GPL");
2764MODULE_VERSION(QLA2XXX_VERSION);
bb8ee499
AV		 2765MODULE_FIRMWARE(FW_FILE_ISP21XX);
2766MODULE_FIRMWARE(FW_FILE_ISP22XX);
2767MODULE_FIRMWARE(FW_FILE_ISP2300);
2768MODULE_FIRMWARE(FW_FILE_ISP2322);
2769MODULE_FIRMWARE(FW_FILE_ISP24XX);
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