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[SCSI] qla2xxx: Drop acquisition of hardware_lock during flash manipulations.
[mirror_ubuntu-bionic-kernel.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,
ed677086
AV		 160 .scan_finished = qla2xxx_scan_finished,
161 .scan_start = qla2xxx_scan_start,
ce7e4af7
AV		 162 .change_queue_depth = qla2x00_change_queue_depth,
163 .change_queue_type = qla2x00_change_queue_type,
fca29703
AV		 164 .this_id = -1,
165 .cmd_per_lun = 3,
166 .use_clustering = ENABLE_CLUSTERING,
167 .sg_tablesize = SG_ALL,
168
169 .max_sectors = 0xFFFF,
afb046e2 170 .shost_attrs = qla2x00_host_attrs,
fca29703
AV		 171};
172
1da177e4
LT		 173static struct scsi_transport_template *qla2xxx_transport_template = NULL;
174
1da177e4
LT		 175/* TODO Convert to inlines
176 *
177 * Timer routines
178 */
179#define WATCH_INTERVAL 1 /* number of seconds */
180
181static void qla2x00_timer(scsi_qla_host_t *);
182
183static __inline__ void qla2x00_start_timer(scsi_qla_host_t *,
184 void *, unsigned long);
185static __inline__ void qla2x00_restart_timer(scsi_qla_host_t *, unsigned long);
186static __inline__ void qla2x00_stop_timer(scsi_qla_host_t *);
187
188static inline void
189qla2x00_start_timer(scsi_qla_host_t *ha, void *func, unsigned long interval)
190{
191 init_timer(&ha->timer);
192 ha->timer.expires = jiffies + interval * HZ;
193 ha->timer.data = (unsigned long)ha;
194 ha->timer.function = (void (*)(unsigned long))func;
195 add_timer(&ha->timer);
196 ha->timer_active = 1;
197}
198
199static inline void
200qla2x00_restart_timer(scsi_qla_host_t *ha, unsigned long interval)
201{
202 mod_timer(&ha->timer, jiffies + interval * HZ);
203}
204
205static __inline__ void
206qla2x00_stop_timer(scsi_qla_host_t *ha)
207{
208 del_timer_sync(&ha->timer);
209 ha->timer_active = 0;
210}
211
1da177e4
LT		 212static int qla2x00_do_dpc(void *data);
213
214static void qla2x00_rst_aen(scsi_qla_host_t *);
215
216static uint8_t qla2x00_mem_alloc(scsi_qla_host_t *);
217static void qla2x00_mem_free(scsi_qla_host_t *ha);
218static int qla2x00_allocate_sp_pool( scsi_qla_host_t *ha);
219static void qla2x00_free_sp_pool(scsi_qla_host_t *ha);
f4f051eb
AV		 220static void qla2x00_sp_free_dma(scsi_qla_host_t *, srb_t *);
221void qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *);
1da177e4 222
1da177e4
LT		 223/* -------------------------------------------------------------------------- */
224
1da177e4 225static char *
abbd8870 226qla2x00_pci_info_str(struct scsi_qla_host *ha, char *str)
1da177e4
LT		 227{
228 static char *pci_bus_modes[] = {
229 "33", "66", "100", "133",
230 };
231 uint16_t pci_bus;
232
233 strcpy(str, "PCI");
234 pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
235 if (pci_bus) {
236 strcat(str, "-X (");
237 strcat(str, pci_bus_modes[pci_bus]);
238 } else {
239 pci_bus = (ha->pci_attr & BIT_8) >> 8;
240 strcat(str, " (");
241 strcat(str, pci_bus_modes[pci_bus]);
242 }
243 strcat(str, " MHz)");
244
245 return (str);
246}
247
fca29703
AV		 248static char *
249qla24xx_pci_info_str(struct scsi_qla_host *ha, char *str)
250{
251 static char *pci_bus_modes[] = { "33", "66", "100", "133", };
252 uint32_t pci_bus;
253 int pcie_reg;
254
255 pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
256 if (pcie_reg) {
257 char lwstr[6];
258 uint16_t pcie_lstat, lspeed, lwidth;
259
260 pcie_reg += 0x12;
261 pci_read_config_word(ha->pdev, pcie_reg, &pcie_lstat);
262 lspeed = pcie_lstat & (BIT_0 | BIT_1 | BIT_2 | BIT_3);
263 lwidth = (pcie_lstat &
264 (BIT_4 | BIT_5 | BIT_6 | BIT_7 | BIT_8 | BIT_9)) >> 4;
265
266 strcpy(str, "PCIe (");
267 if (lspeed == 1)
268 strcat(str, "2.5Gb/s ");
269 else
270 strcat(str, "<unknown> ");
271 snprintf(lwstr, sizeof(lwstr), "x%d)", lwidth);
272 strcat(str, lwstr);
273
274 return str;
275 }
276
277 strcpy(str, "PCI");
278 pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
279 if (pci_bus == 0 || pci_bus == 8) {
280 strcat(str, " (");
281 strcat(str, pci_bus_modes[pci_bus >> 3]);
282 } else {
283 strcat(str, "-X ");
284 if (pci_bus & BIT_2)
285 strcat(str, "Mode 2");
286 else
287 strcat(str, "Mode 1");
288 strcat(str, " (");
289 strcat(str, pci_bus_modes[pci_bus & ~BIT_2]);
290 }
291 strcat(str, " MHz)");
292
293 return str;
294}
295
e5f82ab8 296static char *
abbd8870 297qla2x00_fw_version_str(struct scsi_qla_host *ha, char *str)
1da177e4
LT		 298{
299 char un_str[10];
fa2a1ce5 300
1da177e4
LT		 301 sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
302 ha->fw_minor_version,
303 ha->fw_subminor_version);
304
305 if (ha->fw_attributes & BIT_9) {
306 strcat(str, "FLX");
307 return (str);
308 }
309
310 switch (ha->fw_attributes & 0xFF) {
311 case 0x7:
312 strcat(str, "EF");
313 break;
314 case 0x17:
315 strcat(str, "TP");
316 break;
317 case 0x37:
318 strcat(str, "IP");
319 break;
320 case 0x77:
321 strcat(str, "VI");
322 break;
323 default:
324 sprintf(un_str, "(%x)", ha->fw_attributes);
325 strcat(str, un_str);
326 break;
327 }
328 if (ha->fw_attributes & 0x100)
329 strcat(str, "X");
330
331 return (str);
332}
333
e5f82ab8 334static char *
fca29703
AV		 335qla24xx_fw_version_str(struct scsi_qla_host *ha, char *str)
336{
f0883ac6
AV		 337 sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
338 ha->fw_minor_version,
339 ha->fw_subminor_version);
340
fca29703
AV		 341 if (ha->fw_attributes & BIT_0)
342 strcat(str, "[Class 2] ");
343 if (ha->fw_attributes & BIT_1)
344 strcat(str, "[IP] ");
345 if (ha->fw_attributes & BIT_2)
346 strcat(str, "[Multi-ID] ");
347 if (ha->fw_attributes & BIT_13)
348 strcat(str, "[Experimental]");
349 return str;
fca29703
AV		 350}
351
352static inline srb_t *
353qla2x00_get_new_sp(scsi_qla_host_t *ha, fc_port_t *fcport,
354 struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
355{
356 srb_t *sp;
357
358 sp = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
359 if (!sp)
360 return sp;
361
fca29703
AV		 362 sp->ha = ha;
363 sp->fcport = fcport;
364 sp->cmd = cmd;
365 sp->flags = 0;
366 CMD_SP(cmd) = (void *)sp;
367 cmd->scsi_done = done;
368
369 return sp;
370}
371
1da177e4 372static int
f4f051eb 373qla2x00_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
1da177e4 374{
f4f051eb 375 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
bdf79621 376 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
19a7b4ae 377 struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
f4f051eb
AV		 378 srb_t *sp;
379 int rval;
1da177e4 380
19a7b4ae
JSEC		 381 rval = fc_remote_port_chkready(rport);
382 if (rval) {
383 cmd->result = rval;
f4f051eb
AV		 384 goto qc_fail_command;
385 }
1da177e4 386
387f96b4
AV		 387 /* Close window on fcport/rport state-transitioning. */
388 if (!*(fc_port_t **)rport->dd_data) {
389 cmd->result = DID_IMM_RETRY << 16;
390 goto qc_fail_command;
391 }
392
f4f051eb
AV		 393 if (atomic_read(&fcport->state) != FCS_ONLINE) {
394 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
395 atomic_read(&ha->loop_state) == LOOP_DEAD) {
396 cmd->result = DID_NO_CONNECT << 16;
397 goto qc_fail_command;
398 }
399 goto qc_host_busy;
400 }
1da177e4
LT		 401
402 spin_unlock_irq(ha->host->host_lock);
403
fca29703
AV		 404 sp = qla2x00_get_new_sp(ha, fcport, cmd, done);
405 if (!sp)
f4f051eb 406 goto qc_host_busy_lock;
1da177e4 407
f4f051eb
AV		 408 rval = qla2x00_start_scsi(sp);
409 if (rval != QLA_SUCCESS)
410 goto qc_host_busy_free_sp;
1da177e4 411
f4f051eb 412 spin_lock_irq(ha->host->host_lock);
1da177e4 413
f4f051eb 414 return 0;
1da177e4 415
f4f051eb
AV		 416qc_host_busy_free_sp:
417 qla2x00_sp_free_dma(ha, sp);
f4f051eb 418 mempool_free(sp, ha->srb_mempool);
1da177e4 419
f4f051eb
AV		 420qc_host_busy_lock:
421 spin_lock_irq(ha->host->host_lock);
1da177e4 422
f4f051eb
AV		 423qc_host_busy:
424 return SCSI_MLQUEUE_HOST_BUSY;
1da177e4 425
f4f051eb
AV		 426qc_fail_command:
427 done(cmd);
1da177e4 428
f4f051eb 429 return 0;
1da177e4
LT		 430}
431
fca29703
AV		 432
433static int
434qla24xx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
435{
436 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
437 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
19a7b4ae 438 struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
fca29703
AV		 439 srb_t *sp;
440 int rval;
441
19a7b4ae
JSEC		 442 rval = fc_remote_port_chkready(rport);
443 if (rval) {
444 cmd->result = rval;
fca29703
AV		 445 goto qc24_fail_command;
446 }
447
387f96b4
AV		 448 /* Close window on fcport/rport state-transitioning. */
449 if (!*(fc_port_t **)rport->dd_data) {
450 cmd->result = DID_IMM_RETRY << 16;
451 goto qc24_fail_command;
452 }
453
fca29703
AV		 454 if (atomic_read(&fcport->state) != FCS_ONLINE) {
455 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
456 atomic_read(&ha->loop_state) == LOOP_DEAD) {
457 cmd->result = DID_NO_CONNECT << 16;
458 goto qc24_fail_command;
459 }
460 goto qc24_host_busy;
461 }
462
463 spin_unlock_irq(ha->host->host_lock);
464
465 sp = qla2x00_get_new_sp(ha, fcport, cmd, done);
466 if (!sp)
467 goto qc24_host_busy_lock;
468
469 rval = qla24xx_start_scsi(sp);
470 if (rval != QLA_SUCCESS)
471 goto qc24_host_busy_free_sp;
472
473 spin_lock_irq(ha->host->host_lock);
474
475 return 0;
476
477qc24_host_busy_free_sp:
478 qla2x00_sp_free_dma(ha, sp);
479 mempool_free(sp, ha->srb_mempool);
480
481qc24_host_busy_lock:
482 spin_lock_irq(ha->host->host_lock);
483
484qc24_host_busy:
485 return SCSI_MLQUEUE_HOST_BUSY;
486
487qc24_fail_command:
488 done(cmd);
489
490 return 0;
491}
492
493
1da177e4
LT		 494/*
495 * qla2x00_eh_wait_on_command
496 * Waits for the command to be returned by the Firmware for some
497 * max time.
498 *
499 * Input:
500 * ha = actual ha whose done queue will contain the command
501 * returned by firmware.
502 * cmd = Scsi Command to wait on.
503 * flag = Abort/Reset(Bus or Device Reset)
504 *
505 * Return:
506 * Not Found : 0
507 * Found : 1
508 */
509static int
510qla2x00_eh_wait_on_command(scsi_qla_host_t *ha, struct scsi_cmnd *cmd)
511{
fe74c71f
AV		 512#define ABORT_POLLING_PERIOD 1000
513#define ABORT_WAIT_ITER ((10 * 1000) / (ABORT_POLLING_PERIOD))
f4f051eb
AV		 514 unsigned long wait_iter = ABORT_WAIT_ITER;
515 int ret = QLA_SUCCESS;
1da177e4 516
f4f051eb 517 while (CMD_SP(cmd)) {
fe74c71f 518 msleep(ABORT_POLLING_PERIOD);
1da177e4 519
f4f051eb
AV		 520 if (--wait_iter)
521 break;
522 }
523 if (CMD_SP(cmd))
524 ret = QLA_FUNCTION_FAILED;
1da177e4 525
f4f051eb 526 return ret;
1da177e4
LT		 527}
528
529/*
530 * qla2x00_wait_for_hba_online
fa2a1ce5 531 * Wait till the HBA is online after going through
1da177e4
LT		 532 * <= MAX_RETRIES_OF_ISP_ABORT or
533 * finally HBA is disabled ie marked offline
534 *
535 * Input:
536 * ha - pointer to host adapter structure
fa2a1ce5
AV		 537 *
538 * Note:
1da177e4
LT		 539 * Does context switching-Release SPIN_LOCK
540 * (if any) before calling this routine.
541 *
542 * Return:
543 * Success (Adapter is online) : 0
544 * Failed (Adapter is offline/disabled) : 1
545 */
854165f4 546int
1da177e4
LT		 547qla2x00_wait_for_hba_online(scsi_qla_host_t *ha)
548{
fca29703
AV		 549 int return_status;
550 unsigned long wait_online;
1da177e4 551
fa2a1ce5 552 wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
1da177e4
LT		 553 while (((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) ||
554 test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags) ||
555 test_bit(ISP_ABORT_RETRY, &ha->dpc_flags) ||
556 ha->dpc_active) && time_before(jiffies, wait_online)) {
557
558 msleep(1000);
559 }
fa2a1ce5
AV		 560 if (ha->flags.online)
561 return_status = QLA_SUCCESS;
1da177e4
LT		 562 else
563 return_status = QLA_FUNCTION_FAILED;
564
565 DEBUG2(printk("%s return_status=%d\n",__func__,return_status));
566
567 return (return_status);
568}
569
570/*
571 * qla2x00_wait_for_loop_ready
572 * Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
fa2a1ce5 573 * to be in LOOP_READY state.
1da177e4
LT		 574 * Input:
575 * ha - pointer to host adapter structure
fa2a1ce5
AV		 576 *
577 * Note:
1da177e4
LT		 578 * Does context switching-Release SPIN_LOCK
579 * (if any) before calling this routine.
fa2a1ce5 580 *
1da177e4
LT		 581 *
582 * Return:
583 * Success (LOOP_READY) : 0
584 * Failed (LOOP_NOT_READY) : 1
585 */
fa2a1ce5 586static inline int
1da177e4
LT		 587qla2x00_wait_for_loop_ready(scsi_qla_host_t *ha)
588{
589 int return_status = QLA_SUCCESS;
590 unsigned long loop_timeout ;
591
592 /* wait for 5 min at the max for loop to be ready */
fa2a1ce5 593 loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ);
1da177e4
LT		 594
595 while ((!atomic_read(&ha->loop_down_timer) &&
596 atomic_read(&ha->loop_state) == LOOP_DOWN) ||
1da177e4 597 atomic_read(&ha->loop_state) != LOOP_READY) {
57680080
RA		 598 if (atomic_read(&ha->loop_state) == LOOP_DEAD) {
599 return_status = QLA_FUNCTION_FAILED;
600 break;
601 }
1da177e4
LT		 602 msleep(1000);
603 if (time_after_eq(jiffies, loop_timeout)) {
604 return_status = QLA_FUNCTION_FAILED;
605 break;
606 }
607 }
fa2a1ce5 608 return (return_status);
1da177e4
LT		 609}
610
07db5183
AV		 611static void
612qla2x00_block_error_handler(struct scsi_cmnd *cmnd)
613{
614 struct Scsi_Host *shost = cmnd->device->host;
615 struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device));
616 unsigned long flags;
617
618 spin_lock_irqsave(shost->host_lock, flags);
619 while (rport->port_state == FC_PORTSTATE_BLOCKED) {
620 spin_unlock_irqrestore(shost->host_lock, flags);
621 msleep(1000);
622 spin_lock_irqsave(shost->host_lock, flags);
623 }
624 spin_unlock_irqrestore(shost->host_lock, flags);
625 return;
626}
627
1da177e4
LT		 628/**************************************************************************
629* qla2xxx_eh_abort
630*
631* Description:
632* The abort function will abort the specified command.
633*
634* Input:
635* cmd = Linux SCSI command packet to be aborted.
636*
637* Returns:
638* Either SUCCESS or FAILED.
639*
640* Note:
2ea00202 641* Only return FAILED if command not returned by firmware.
1da177e4 642**************************************************************************/
e5f82ab8 643static int
1da177e4
LT		 644qla2xxx_eh_abort(struct scsi_cmnd *cmd)
645{
f4f051eb
AV		 646 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
647 srb_t *sp;
648 int ret, i;
649 unsigned int id, lun;
650 unsigned long serial;
18e144d3 651 unsigned long flags;
2ea00202 652 int wait = 0;
1da177e4 653
07db5183
AV		 654 qla2x00_block_error_handler(cmd);
655
f4f051eb 656 if (!CMD_SP(cmd))
2ea00202 657 return SUCCESS;
1da177e4 658
2ea00202 659 ret = SUCCESS;
1da177e4 660
f4f051eb
AV		 661 id = cmd->device->id;
662 lun = cmd->device->lun;
663 serial = cmd->serial_number;
1da177e4 664
f4f051eb 665 /* Check active list for command command. */
18e144d3 666 spin_lock_irqsave(&ha->hardware_lock, flags);
f4f051eb
AV		 667 for (i = 1; i < MAX_OUTSTANDING_COMMANDS; i++) {
668 sp = ha->outstanding_cmds[i];
1da177e4 669
f4f051eb
AV		 670 if (sp == NULL)
671 continue;
1da177e4 672
f4f051eb
AV		 673 if (sp->cmd != cmd)
674 continue;
1da177e4 675
75bc4190
AV		 676 DEBUG2(printk("%s(%ld): aborting sp %p from RISC. pid=%ld.\n",
677 __func__, ha->host_no, sp, serial));
744f11fd 678 DEBUG3(qla2x00_print_scsi_cmd(cmd));
1da177e4 679
18e144d3 680 spin_unlock_irqrestore(&ha->hardware_lock, flags);
abbd8870 681 if (ha->isp_ops.abort_command(ha, sp)) {
f4f051eb
AV		 682 DEBUG2(printk("%s(%ld): abort_command "
683 "mbx failed.\n", __func__, ha->host_no));
684 } else {
685 DEBUG3(printk("%s(%ld): abort_command "
686 "mbx success.\n", __func__, ha->host_no));
2ea00202 687 wait = 1;
f4f051eb 688 }
18e144d3 689 spin_lock_irqsave(&ha->hardware_lock, flags);
1da177e4 690
f4f051eb
AV		 691 break;
692 }
18e144d3 693 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1da177e4 694
f4f051eb 695 /* Wait for the command to be returned. */
2ea00202 696 if (wait) {
f4f051eb 697 if (qla2x00_eh_wait_on_command(ha, cmd) != QLA_SUCCESS) {
fa2a1ce5 698 qla_printk(KERN_ERR, ha,
f4f051eb
AV		 699 "scsi(%ld:%d:%d): Abort handler timed out -- %lx "
700 "%x.\n", ha->host_no, id, lun, serial, ret);
2ea00202 701 ret = FAILED;
f4f051eb 702 }
1da177e4 703 }
1da177e4 704
fa2a1ce5 705 qla_printk(KERN_INFO, ha,
2ea00202
MR		 706 "scsi(%ld:%d:%d): Abort command issued -- %d %lx %x.\n",
707 ha->host_no, id, lun, wait, serial, ret);
1da177e4 708
f4f051eb
AV		 709 return ret;
710}
1da177e4 711
f4f051eb
AV		 712/**************************************************************************
713* qla2x00_eh_wait_for_pending_target_commands
714*
715* Description:
716* Waits for all the commands to come back from the specified target.
717*
718* Input:
719* ha - pointer to scsi_qla_host structure.
fa2a1ce5 720* t - target
f4f051eb
AV		 721* Returns:
722* Either SUCCESS or FAILED.
723*
724* Note:
725**************************************************************************/
726static int
727qla2x00_eh_wait_for_pending_target_commands(scsi_qla_host_t *ha, unsigned int t)
728{
729 int cnt;
730 int status;
731 srb_t *sp;
732 struct scsi_cmnd *cmd;
18e144d3 733 unsigned long flags;
1da177e4 734
f4f051eb 735 status = 0;
1da177e4
LT		 736
737 /*
f4f051eb
AV		 738 * Waiting for all commands for the designated target in the active
739 * array
1da177e4
LT		 740 */
741 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
18e144d3 742 spin_lock_irqsave(&ha->hardware_lock, flags);
1da177e4
LT		 743 sp = ha->outstanding_cmds[cnt];
744 if (sp) {
745 cmd = sp->cmd;
18e144d3 746 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1da177e4
LT		 747 if (cmd->device->id == t) {
748 if (!qla2x00_eh_wait_on_command(ha, cmd)) {
749 status = 1;
750 break;
751 }
752 }
f4f051eb 753 } else {
18e144d3 754 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1da177e4
LT		 755 }
756 }
757 return (status);
758}
759
760
761/**************************************************************************
762* qla2xxx_eh_device_reset
763*
764* Description:
765* The device reset function will reset the target and abort any
766* executing commands.
767*
768* NOTE: The use of SP is undefined within this context. Do *NOT*
fa2a1ce5 769* attempt to use this value, even if you determine it is
1da177e4
LT		 770* non-null.
771*
772* Input:
773* cmd = Linux SCSI command packet of the command that cause the
774* bus device reset.
775*
776* Returns:
777* SUCCESS/FAILURE (defined as macro in scsi.h).
778*
779**************************************************************************/
e5f82ab8 780static int
1da177e4
LT		 781qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
782{
f4f051eb 783 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
bdf79621 784 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
f4f051eb
AV		 785 int ret;
786 unsigned int id, lun;
787 unsigned long serial;
1da177e4 788
07db5183
AV		 789 qla2x00_block_error_handler(cmd);
790
f4f051eb 791 ret = FAILED;
1da177e4 792
f4f051eb
AV		 793 id = cmd->device->id;
794 lun = cmd->device->lun;
795 serial = cmd->serial_number;
1da177e4 796
b0328bee 797 if (!fcport)
f4f051eb 798 return ret;
1da177e4
LT		 799
800 qla_printk(KERN_INFO, ha,
f4f051eb 801 "scsi(%ld:%d:%d): DEVICE RESET ISSUED.\n", ha->host_no, id, lun);
1da177e4 802
94d0e7b8 803 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
1da177e4 804 goto eh_dev_reset_done;
1da177e4
LT		 805
806 if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
f4f051eb
AV		 807 if (qla2x00_device_reset(ha, fcport) == 0)
808 ret = SUCCESS;
1da177e4
LT		 809
810#if defined(LOGOUT_AFTER_DEVICE_RESET)
f4f051eb
AV		 811 if (ret == SUCCESS) {
812 if (fcport->flags & FC_FABRIC_DEVICE) {
abbd8870 813 ha->isp_ops.fabric_logout(ha, fcport->loop_id);
d97994dc 814 qla2x00_mark_device_lost(ha, fcport, 0, 0);
1da177e4
LT		 815 }
816 }
817#endif
818 } else {
819 DEBUG2(printk(KERN_INFO
744f11fd 820 "%s failed: loop not ready\n",__func__));
1da177e4
LT		 821 }
822
f4f051eb 823 if (ret == FAILED) {
1da177e4
LT		 824 DEBUG3(printk("%s(%ld): device reset failed\n",
825 __func__, ha->host_no));
826 qla_printk(KERN_INFO, ha, "%s: device reset failed\n",
827 __func__);
828
829 goto eh_dev_reset_done;
830 }
831
9a41a62b
AV		 832 /* Flush outstanding commands. */
833 if (qla2x00_eh_wait_for_pending_target_commands(ha, id))
834 ret = FAILED;
835 if (ret == FAILED) {
836 DEBUG3(printk("%s(%ld): failed while waiting for commands\n",
837 __func__, ha->host_no));
838 qla_printk(KERN_INFO, ha,
839 "%s: failed while waiting for commands\n", __func__);
840 } else
841 qla_printk(KERN_INFO, ha,
842 "scsi(%ld:%d:%d): DEVICE RESET SUCCEEDED.\n", ha->host_no,
843 id, lun);
28f22b03 844 eh_dev_reset_done:
f4f051eb 845 return ret;
1da177e4
LT		 846}
847
848/**************************************************************************
849* qla2x00_eh_wait_for_pending_commands
850*
851* Description:
852* Waits for all the commands to come back from the specified host.
853*
854* Input:
855* ha - pointer to scsi_qla_host structure.
856*
857* Returns:
858* 1 : SUCCESS
859* 0 : FAILED
860*
861* Note:
862**************************************************************************/
863static int
864qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *ha)
865{
866 int cnt;
867 int status;
868 srb_t *sp;
869 struct scsi_cmnd *cmd;
18e144d3 870 unsigned long flags;
1da177e4
LT		 871
872 status = 1;
873
874 /*
875 * Waiting for all commands for the designated target in the active
876 * array
877 */
878 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
18e144d3 879 spin_lock_irqsave(&ha->hardware_lock, flags);
1da177e4
LT		 880 sp = ha->outstanding_cmds[cnt];
881 if (sp) {
882 cmd = sp->cmd;
18e144d3 883 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1da177e4
LT		 884 status = qla2x00_eh_wait_on_command(ha, cmd);
885 if (status == 0)
886 break;
887 }
888 else {
18e144d3 889 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1da177e4
LT		 890 }
891 }
892 return (status);
893}
894
895
896/**************************************************************************
897* qla2xxx_eh_bus_reset
898*
899* Description:
900* The bus reset function will reset the bus and abort any executing
901* commands.
902*
903* Input:
904* cmd = Linux SCSI command packet of the command that cause the
905* bus reset.
906*
907* Returns:
908* SUCCESS/FAILURE (defined as macro in scsi.h).
909*
910**************************************************************************/
e5f82ab8 911static int
1da177e4
LT		 912qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
913{
f4f051eb 914 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
bdf79621 915 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
f4f051eb
AV		 916 int ret;
917 unsigned int id, lun;
918 unsigned long serial;
919
07db5183
AV		 920 qla2x00_block_error_handler(cmd);
921
f4f051eb
AV		 922 ret = FAILED;
923
924 id = cmd->device->id;
925 lun = cmd->device->lun;
926 serial = cmd->serial_number;
1da177e4 927
b0328bee 928 if (!fcport)
f4f051eb 929 return ret;
1da177e4
LT		 930
931 qla_printk(KERN_INFO, ha,
f4f051eb 932 "scsi(%ld:%d:%d): LOOP RESET ISSUED.\n", ha->host_no, id, lun);
1da177e4 933
1da177e4
LT		 934 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS) {
935 DEBUG2(printk("%s failed:board disabled\n",__func__));
f4f051eb 936 goto eh_bus_reset_done;
1da177e4
LT		 937 }
938
939 if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
f4f051eb
AV		 940 if (qla2x00_loop_reset(ha) == QLA_SUCCESS)
941 ret = SUCCESS;
1da177e4 942 }
f4f051eb
AV		 943 if (ret == FAILED)
944 goto eh_bus_reset_done;
1da177e4 945
9a41a62b
AV		 946 /* Flush outstanding commands. */
947 if (!qla2x00_eh_wait_for_pending_commands(ha))
948 ret = FAILED;
1da177e4 949
f4f051eb 950eh_bus_reset_done:
1da177e4 951 qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
f4f051eb 952 (ret == FAILED) ? "failed" : "succeded");
1da177e4 953
f4f051eb 954 return ret;
1da177e4
LT		 955}
956
957/**************************************************************************
958* qla2xxx_eh_host_reset
959*
960* Description:
961* The reset function will reset the Adapter.
962*
963* Input:
964* cmd = Linux SCSI command packet of the command that cause the
965* adapter reset.
966*
967* Returns:
968* Either SUCCESS or FAILED.
969*
970* Note:
971**************************************************************************/
e5f82ab8 972static int
1da177e4
LT		 973qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
974{
f4f051eb 975 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
bdf79621 976 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
f4f051eb
AV		 977 int ret;
978 unsigned int id, lun;
979 unsigned long serial;
1da177e4 980
07db5183
AV		 981 qla2x00_block_error_handler(cmd);
982
f4f051eb
AV		 983 ret = FAILED;
984
985 id = cmd->device->id;
986 lun = cmd->device->lun;
987 serial = cmd->serial_number;
988
b0328bee 989 if (!fcport)
f4f051eb 990 return ret;
1da177e4 991
1da177e4 992 qla_printk(KERN_INFO, ha,
f4f051eb 993 "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", ha->host_no, id, lun);
1da177e4 994
1da177e4 995 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
f4f051eb 996 goto eh_host_reset_lock;
1da177e4
LT		 997
998 /*
999 * Fixme-may be dpc thread is active and processing
fa2a1ce5 1000 * loop_resync,so wait a while for it to
1da177e4
LT		 1001 * be completed and then issue big hammer.Otherwise
1002 * it may cause I/O failure as big hammer marks the
1003 * devices as lost kicking of the port_down_timer
1004 * while dpc is stuck for the mailbox to complete.
1005 */
1da177e4
LT		 1006 qla2x00_wait_for_loop_ready(ha);
1007 set_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
1008 if (qla2x00_abort_isp(ha)) {
1009 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
1010 /* failed. schedule dpc to try */
1011 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
1012
1013 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
f4f051eb 1014 goto eh_host_reset_lock;
fa2a1ce5 1015 }
1da177e4
LT		 1016 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
1017
1da177e4 1018 /* Waiting for our command in done_queue to be returned to OS.*/
f4f051eb
AV		 1019 if (qla2x00_eh_wait_for_pending_commands(ha))
1020 ret = SUCCESS;
1da177e4 1021
f4f051eb 1022eh_host_reset_lock:
f4f051eb
AV		 1023 qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
1024 (ret == FAILED) ? "failed" : "succeded");
1da177e4 1025
f4f051eb
AV		 1026 return ret;
1027}
1da177e4
LT		 1028
1029/*
1030* qla2x00_loop_reset
1031* Issue loop reset.
1032*
1033* Input:
1034* ha = adapter block pointer.
1035*
1036* Returns:
1037* 0 = success
1038*/
1039static int
1040qla2x00_loop_reset(scsi_qla_host_t *ha)
1041{
0c8c39af 1042 int ret;
bdf79621 1043 struct fc_port *fcport;
1da177e4 1044
0c8c39af
AV		 1045 if (ha->flags.enable_lip_full_login) {
1046 ret = qla2x00_full_login_lip(ha);
1047 if (ret != QLA_SUCCESS) {
1048 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1049 "full_login_lip=%d.\n", __func__, ha->host_no,
1050 ret));
1051 }
1052 atomic_set(&ha->loop_state, LOOP_DOWN);
1053 atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
1054 qla2x00_mark_all_devices_lost(ha, 0);
1055 qla2x00_wait_for_loop_ready(ha);
1056 }
1057
1da177e4 1058 if (ha->flags.enable_lip_reset) {
0c8c39af
AV		 1059 ret = qla2x00_lip_reset(ha);
1060 if (ret != QLA_SUCCESS) {
1061 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1062 "lip_reset=%d.\n", __func__, ha->host_no, ret));
1063 }
1064 qla2x00_wait_for_loop_ready(ha);
1da177e4
LT		 1065 }
1066
0c8c39af 1067 if (ha->flags.enable_target_reset) {
bdf79621
AV		 1068 list_for_each_entry(fcport, &ha->fcports, list) {
1069 if (fcport->port_type != FCT_TARGET)
1da177e4
LT		 1070 continue;
1071
0c8c39af
AV		 1072 ret = qla2x00_device_reset(ha, fcport);
1073 if (ret != QLA_SUCCESS) {
1074 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1075 "target_reset=%d d_id=%x.\n", __func__,
1076 ha->host_no, ret, fcport->d_id.b24));
1077 }
1da177e4
LT		 1078 }
1079 }
1080
1da177e4
LT		 1081 /* Issue marker command only when we are going to start the I/O */
1082 ha->marker_needed = 1;
1083
0c8c39af 1084 return QLA_SUCCESS;
1da177e4
LT		 1085}
1086
1087/*
1088 * qla2x00_device_reset
1089 * Issue bus device reset message to the target.
1090 *
1091 * Input:
1092 * ha = adapter block pointer.
1093 * t = SCSI ID.
1094 * TARGET_QUEUE_LOCK must be released.
1095 * ADAPTER_STATE_LOCK must be released.
1096 *
1097 * Context:
1098 * Kernel context.
1099 */
1100static int
1101qla2x00_device_reset(scsi_qla_host_t *ha, fc_port_t *reset_fcport)
1102{
1103 /* Abort Target command will clear Reservation */
abbd8870 1104 return ha->isp_ops.abort_target(reset_fcport);
1da177e4
LT		 1105}
1106
f4f051eb
AV		 1107static int
1108qla2xxx_slave_alloc(struct scsi_device *sdev)
1da177e4 1109{
bdf79621 1110 struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1da177e4 1111
19a7b4ae 1112 if (!rport || fc_remote_port_chkready(rport))
f4f051eb 1113 return -ENXIO;
bdf79621 1114
19a7b4ae 1115 sdev->hostdata = *(fc_port_t **)rport->dd_data;
1da177e4 1116
f4f051eb
AV		 1117 return 0;
1118}
1da177e4 1119
f4f051eb
AV		 1120static int
1121qla2xxx_slave_configure(struct scsi_device *sdev)
1122{
8482e118
AV		 1123 scsi_qla_host_t *ha = to_qla_host(sdev->host);
1124 struct fc_rport *rport = starget_to_rport(sdev->sdev_target);
1125
f4f051eb 1126 if (sdev->tagged_supported)
df7baa50 1127 scsi_activate_tcq(sdev, ha->max_q_depth);
f4f051eb 1128 else
df7baa50 1129 scsi_deactivate_tcq(sdev, ha->max_q_depth);
1da177e4 1130
8482e118
AV		 1131 rport->dev_loss_tmo = ha->port_down_retry_count + 5;
1132
f4f051eb
AV		 1133 return 0;
1134}
1da177e4 1135
f4f051eb
AV		 1136static void
1137qla2xxx_slave_destroy(struct scsi_device *sdev)
1138{
1139 sdev->hostdata = NULL;
1da177e4
LT		 1140}
1141
ce7e4af7
AV		 1142static int
1143qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth)
1144{
1145 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1146 return sdev->queue_depth;
1147}
1148
1149static int
1150qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1151{
1152 if (sdev->tagged_supported) {
1153 scsi_set_tag_type(sdev, tag_type);
1154 if (tag_type)
1155 scsi_activate_tcq(sdev, sdev->queue_depth);
1156 else
1157 scsi_deactivate_tcq(sdev, sdev->queue_depth);
1158 } else
1159 tag_type = 0;
1160
1161 return tag_type;
1162}
1163
1da177e4
LT		 1164/**
1165 * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1166 * @ha: HA context
1167 *
1168 * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1169 * supported addressing method.
1170 */
1171static void
1172qla2x00_config_dma_addressing(scsi_qla_host_t *ha)
1173{
7524f9b9 1174 /* Assume a 32bit DMA mask. */
1da177e4 1175 ha->flags.enable_64bit_addressing = 0;
1da177e4 1176
7524f9b9
AV		 1177 if (!dma_set_mask(&ha->pdev->dev, DMA_64BIT_MASK)) {
1178 /* Any upper-dword bits set? */
1179 if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1180 !pci_set_consistent_dma_mask(ha->pdev, DMA_64BIT_MASK)) {
1181 /* Ok, a 64bit DMA mask is applicable. */
1da177e4 1182 ha->flags.enable_64bit_addressing = 1;
abbd8870
AV		 1183 ha->isp_ops.calc_req_entries = qla2x00_calc_iocbs_64;
1184 ha->isp_ops.build_iocbs = qla2x00_build_scsi_iocbs_64;
7524f9b9 1185 return;
1da177e4 1186 }
1da177e4 1187 }
7524f9b9
AV		 1188
1189 dma_set_mask(&ha->pdev->dev, DMA_32BIT_MASK);
1190 pci_set_consistent_dma_mask(ha->pdev, DMA_32BIT_MASK);
1da177e4
LT		 1191}
1192
ea5b6382
AV		 1193static inline void
1194qla2x00_set_isp_flags(scsi_qla_host_t *ha)
1195{
1196 ha->device_type = DT_EXTENDED_IDS;
1197 switch (ha->pdev->device) {
1198 case PCI_DEVICE_ID_QLOGIC_ISP2100:
1199 ha->device_type |= DT_ISP2100;
1200 ha->device_type &= ~DT_EXTENDED_IDS;
441d1072 1201 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
ea5b6382
AV		 1202 break;
1203 case PCI_DEVICE_ID_QLOGIC_ISP2200:
1204 ha->device_type |= DT_ISP2200;
1205 ha->device_type &= ~DT_EXTENDED_IDS;
441d1072 1206 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
ea5b6382
AV		 1207 break;
1208 case PCI_DEVICE_ID_QLOGIC_ISP2300:
1209 ha->device_type |= DT_ISP2300;
4a59f71d 1210 ha->device_type |= DT_ZIO_SUPPORTED;
441d1072 1211 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
ea5b6382
AV		 1212 break;
1213 case PCI_DEVICE_ID_QLOGIC_ISP2312:
1214 ha->device_type |= DT_ISP2312;
4a59f71d 1215 ha->device_type |= DT_ZIO_SUPPORTED;
441d1072 1216 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
ea5b6382
AV		 1217 break;
1218 case PCI_DEVICE_ID_QLOGIC_ISP2322:
1219 ha->device_type |= DT_ISP2322;
4a59f71d 1220 ha->device_type |= DT_ZIO_SUPPORTED;
ea5b6382
AV		 1221 if (ha->pdev->subsystem_vendor == 0x1028 &&
1222 ha->pdev->subsystem_device == 0x0170)
1223 ha->device_type |= DT_OEM_001;
441d1072 1224 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
ea5b6382
AV		 1225 break;
1226 case PCI_DEVICE_ID_QLOGIC_ISP6312:
1227 ha->device_type |= DT_ISP6312;
441d1072 1228 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
ea5b6382
AV		 1229 break;
1230 case PCI_DEVICE_ID_QLOGIC_ISP6322:
1231 ha->device_type |= DT_ISP6322;
441d1072 1232 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
ea5b6382
AV		 1233 break;
1234 case PCI_DEVICE_ID_QLOGIC_ISP2422:
1235 ha->device_type |= DT_ISP2422;
4a59f71d 1236 ha->device_type |= DT_ZIO_SUPPORTED;
441d1072 1237 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
ea5b6382
AV		 1238 break;
1239 case PCI_DEVICE_ID_QLOGIC_ISP2432:
1240 ha->device_type |= DT_ISP2432;
4a59f71d 1241 ha->device_type |= DT_ZIO_SUPPORTED;
441d1072 1242 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
ea5b6382 1243 break;
044cc6c8
AV		 1244 case PCI_DEVICE_ID_QLOGIC_ISP5422:
1245 ha->device_type |= DT_ISP5422;
441d1072 1246 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
ea5b6382 1247 break;
044cc6c8
AV		 1248 case PCI_DEVICE_ID_QLOGIC_ISP5432:
1249 ha->device_type |= DT_ISP5432;
441d1072 1250 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
ea5b6382
AV		 1251 break;
1252 }
1253}
1254
1da177e4
LT		 1255static int
1256qla2x00_iospace_config(scsi_qla_host_t *ha)
1257{
1258 unsigned long pio, pio_len, pio_flags;
1259 unsigned long mmio, mmio_len, mmio_flags;
1260
1261 /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1262 pio = pci_resource_start(ha->pdev, 0);
1263 pio_len = pci_resource_len(ha->pdev, 0);
1264 pio_flags = pci_resource_flags(ha->pdev, 0);
1265 if (pio_flags & IORESOURCE_IO) {
1266 if (pio_len < MIN_IOBASE_LEN) {
1267 qla_printk(KERN_WARNING, ha,
1268 "Invalid PCI I/O region size (%s)...\n",
1269 pci_name(ha->pdev));
1270 pio = 0;
1271 }
1272 } else {
1273 qla_printk(KERN_WARNING, ha,
1274 "region #0 not a PIO resource (%s)...\n",
1275 pci_name(ha->pdev));
1276 pio = 0;
1277 }
1278
1279 /* Use MMIO operations for all accesses. */
1280 mmio = pci_resource_start(ha->pdev, 1);
1281 mmio_len = pci_resource_len(ha->pdev, 1);
1282 mmio_flags = pci_resource_flags(ha->pdev, 1);
1283
1284 if (!(mmio_flags & IORESOURCE_MEM)) {
1285 qla_printk(KERN_ERR, ha,
1286 "region #0 not an MMIO resource (%s), aborting\n",
1287 pci_name(ha->pdev));
1288 goto iospace_error_exit;
1289 }
1290 if (mmio_len < MIN_IOBASE_LEN) {
1291 qla_printk(KERN_ERR, ha,
1292 "Invalid PCI mem region size (%s), aborting\n",
1293 pci_name(ha->pdev));
1294 goto iospace_error_exit;
1295 }
1296
cb63067a 1297 if (pci_request_regions(ha->pdev, QLA2XXX_DRIVER_NAME)) {
1da177e4
LT		 1298 qla_printk(KERN_WARNING, ha,
1299 "Failed to reserve PIO/MMIO regions (%s)\n",
1300 pci_name(ha->pdev));
1301
1302 goto iospace_error_exit;
1303 }
1304
1305 ha->pio_address = pio;
1306 ha->pio_length = pio_len;
1307 ha->iobase = ioremap(mmio, MIN_IOBASE_LEN);
1308 if (!ha->iobase) {
1309 qla_printk(KERN_ERR, ha,
1310 "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
1311
1312 goto iospace_error_exit;
1313 }
1314
1315 return (0);
1316
1317iospace_error_exit:
1318 return (-ENOMEM);
1319}
1320
abbd8870
AV		 1321static void
1322qla2x00_enable_intrs(scsi_qla_host_t *ha)
1323{
1324 unsigned long flags = 0;
3d71644c 1325 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
abbd8870
AV		 1326
1327 spin_lock_irqsave(&ha->hardware_lock, flags);
1328 ha->interrupts_on = 1;
1329 /* enable risc and host interrupts */
1330 WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1331 RD_REG_WORD(&reg->ictrl);
1332 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1333
1334}
1335
1336static void
1337qla2x00_disable_intrs(scsi_qla_host_t *ha)
1338{
1339 unsigned long flags = 0;
3d71644c 1340 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
abbd8870
AV		 1341
1342 spin_lock_irqsave(&ha->hardware_lock, flags);
1343 ha->interrupts_on = 0;
1344 /* disable risc and host interrupts */
1345 WRT_REG_WORD(&reg->ictrl, 0);
1346 RD_REG_WORD(&reg->ictrl);
1347 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1348}
1349
fca29703
AV		 1350static void
1351qla24xx_enable_intrs(scsi_qla_host_t *ha)
1352{
1353 unsigned long flags = 0;
1354 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1355
1356 spin_lock_irqsave(&ha->hardware_lock, flags);
1357 ha->interrupts_on = 1;
1358 WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1359 RD_REG_DWORD(&reg->ictrl);
1360 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1361}
1362
1363static void
1364qla24xx_disable_intrs(scsi_qla_host_t *ha)
1365{
1366 unsigned long flags = 0;
1367 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1368
1369 spin_lock_irqsave(&ha->hardware_lock, flags);
1370 ha->interrupts_on = 0;
1371 WRT_REG_DWORD(&reg->ictrl, 0);
1372 RD_REG_DWORD(&reg->ictrl);
1373 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1374}
1375
1e99e33a
AV		 1376static void
1377qla2xxx_scan_start(struct Scsi_Host *shost)
1378{
1379 scsi_qla_host_t *ha = (scsi_qla_host_t *)shost->hostdata;
1380
1381 set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
1382 set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
1383 set_bit(RSCN_UPDATE, &ha->dpc_flags);
1384}
1385
1386static int
1387qla2xxx_scan_finished(struct Scsi_Host *shost, unsigned long time)
1388{
1389 scsi_qla_host_t *ha = (scsi_qla_host_t *)shost->hostdata;
1390
1391 if (!ha->host)
1392 return 1;
1393 if (time > ha->loop_reset_delay * HZ)
1394 return 1;
1395
1396 return atomic_read(&ha->loop_state) == LOOP_READY;
1397}
1398
1da177e4
LT		 1399/*
1400 * PCI driver interface
1401 */
7ee61397
AV		 1402static int __devinit
1403qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
1da177e4 1404{
a1541d5a 1405 int ret = -ENODEV;
fca29703 1406 device_reg_t __iomem *reg;
1da177e4
LT		 1407 struct Scsi_Host *host;
1408 scsi_qla_host_t *ha;
1409 unsigned long flags = 0;
1da177e4
LT		 1410 char pci_info[20];
1411 char fw_str[30];
5433383e 1412 struct scsi_host_template *sht;
1da177e4
LT		 1413
1414 if (pci_enable_device(pdev))
a1541d5a 1415 goto probe_out;
1da177e4 1416
5433383e
AV		 1417 sht = &qla2x00_driver_template;
1418 if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
8bc69e7d
AV		 1419 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432 ||
1420 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5422 ||
1421 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5432)
5433383e
AV		 1422 sht = &qla24xx_driver_template;
1423 host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
1da177e4
LT		 1424 if (host == NULL) {
1425 printk(KERN_WARNING
1426 "qla2xxx: Couldn't allocate host from scsi layer!\n");
1427 goto probe_disable_device;
1428 }
1429
1430 /* Clear our data area */
1431 ha = (scsi_qla_host_t *)host->hostdata;
1432 memset(ha, 0, sizeof(scsi_qla_host_t));
1433
1434 ha->pdev = pdev;
1435 ha->host = host;
1436 ha->host_no = host->host_no;
cb63067a 1437 sprintf(ha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, ha->host_no);
1da177e4 1438
ea5b6382
AV		 1439 /* Set ISP-type information. */
1440 qla2x00_set_isp_flags(ha);
1441
1da177e4
LT		 1442 /* Configure PCI I/O space */
1443 ret = qla2x00_iospace_config(ha);
a1541d5a
AV		 1444 if (ret)
1445 goto probe_failed;
1da177e4 1446
1da177e4 1447 qla_printk(KERN_INFO, ha,
5433383e
AV		 1448 "Found an ISP%04X, irq %d, iobase 0x%p\n", pdev->device, pdev->irq,
1449 ha->iobase);
1da177e4
LT		 1450
1451 spin_lock_init(&ha->hardware_lock);
1452
1da177e4 1453 ha->prev_topology = 0;
fca29703 1454 ha->init_cb_size = sizeof(init_cb_t);
cca5335c 1455 ha->mgmt_svr_loop_id = MANAGEMENT_SERVER;
d8b45213 1456 ha->link_data_rate = PORT_SPEED_UNKNOWN;
854165f4 1457 ha->optrom_size = OPTROM_SIZE_2300;
1da177e4 1458
df7baa50
AV		 1459 ha->max_q_depth = MAX_Q_DEPTH;
1460 if (ql2xmaxqdepth != 0 && ql2xmaxqdepth <= 0xffffU)
1461 ha->max_q_depth = ql2xmaxqdepth;
1462
abbd8870
AV		 1463 /* Assign ISP specific operations. */
1464 ha->isp_ops.pci_config = qla2100_pci_config;
1465 ha->isp_ops.reset_chip = qla2x00_reset_chip;
1466 ha->isp_ops.chip_diag = qla2x00_chip_diag;
1467 ha->isp_ops.config_rings = qla2x00_config_rings;
1468 ha->isp_ops.reset_adapter = qla2x00_reset_adapter;
1469 ha->isp_ops.nvram_config = qla2x00_nvram_config;
1470 ha->isp_ops.update_fw_options = qla2x00_update_fw_options;
0107109e 1471 ha->isp_ops.load_risc = qla2x00_load_risc;
abbd8870
AV		 1472 ha->isp_ops.pci_info_str = qla2x00_pci_info_str;
1473 ha->isp_ops.fw_version_str = qla2x00_fw_version_str;
1474 ha->isp_ops.intr_handler = qla2100_intr_handler;
1475 ha->isp_ops.enable_intrs = qla2x00_enable_intrs;
1476 ha->isp_ops.disable_intrs = qla2x00_disable_intrs;
1477 ha->isp_ops.abort_command = qla2x00_abort_command;
1478 ha->isp_ops.abort_target = qla2x00_abort_target;
1479 ha->isp_ops.fabric_login = qla2x00_login_fabric;
1480 ha->isp_ops.fabric_logout = qla2x00_fabric_logout;
1481 ha->isp_ops.calc_req_entries = qla2x00_calc_iocbs_32;
1482 ha->isp_ops.build_iocbs = qla2x00_build_scsi_iocbs_32;
1483 ha->isp_ops.prep_ms_iocb = qla2x00_prep_ms_iocb;
cca5335c 1484 ha->isp_ops.prep_ms_fdmi_iocb = qla2x00_prep_ms_fdmi_iocb;
459c5378
AV		 1485 ha->isp_ops.read_nvram = qla2x00_read_nvram_data;
1486 ha->isp_ops.write_nvram = qla2x00_write_nvram_data;
abbd8870 1487 ha->isp_ops.fw_dump = qla2100_fw_dump;
854165f4
AV		 1488 ha->isp_ops.read_optrom = qla2x00_read_optrom_data;
1489 ha->isp_ops.write_optrom = qla2x00_write_optrom_data;
30c47662 1490 ha->isp_ops.get_flash_version = qla2x00_get_flash_version;
1da177e4 1491 if (IS_QLA2100(ha)) {
354d6b21 1492 host->max_id = MAX_TARGETS_2100;
1da177e4
LT		 1493 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
1494 ha->request_q_length = REQUEST_ENTRY_CNT_2100;
1495 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1496 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1497 host->sg_tablesize = 32;
abbd8870 1498 ha->gid_list_info_size = 4;
1da177e4 1499 } else if (IS_QLA2200(ha)) {
354d6b21 1500 host->max_id = MAX_TARGETS_2200;
1da177e4
LT		 1501 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1502 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1503 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1504 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
abbd8870 1505 ha->gid_list_info_size = 4;
fca29703 1506 } else if (IS_QLA23XX(ha)) {
354d6b21 1507 host->max_id = MAX_TARGETS_2200;
1da177e4
LT		 1508 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1509 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1510 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1511 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
abbd8870
AV		 1512 ha->isp_ops.pci_config = qla2300_pci_config;
1513 ha->isp_ops.intr_handler = qla2300_intr_handler;
1514 ha->isp_ops.fw_dump = qla2300_fw_dump;
f6df144c
AV		 1515 ha->isp_ops.beacon_on = qla2x00_beacon_on;
1516 ha->isp_ops.beacon_off = qla2x00_beacon_off;
1517 ha->isp_ops.beacon_blink = qla2x00_beacon_blink;
abbd8870 1518 ha->gid_list_info_size = 6;
854165f4
AV		 1519 if (IS_QLA2322(ha) || IS_QLA6322(ha))
1520 ha->optrom_size = OPTROM_SIZE_2322;
044cc6c8 1521 } else if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
fca29703
AV		 1522 host->max_id = MAX_TARGETS_2200;
1523 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1524 ha->request_q_length = REQUEST_ENTRY_CNT_24XX;
1525 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1526 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1527 ha->init_cb_size = sizeof(struct init_cb_24xx);
cca5335c 1528 ha->mgmt_svr_loop_id = 10;
fca29703
AV		 1529 ha->isp_ops.pci_config = qla24xx_pci_config;
1530 ha->isp_ops.reset_chip = qla24xx_reset_chip;
1531 ha->isp_ops.chip_diag = qla24xx_chip_diag;
1532 ha->isp_ops.config_rings = qla24xx_config_rings;
1533 ha->isp_ops.reset_adapter = qla24xx_reset_adapter;
1534 ha->isp_ops.nvram_config = qla24xx_nvram_config;
1535 ha->isp_ops.update_fw_options = qla24xx_update_fw_options;
5433383e 1536 ha->isp_ops.load_risc = qla24xx_load_risc;
fca29703
AV		 1537 ha->isp_ops.pci_info_str = qla24xx_pci_info_str;
1538 ha->isp_ops.fw_version_str = qla24xx_fw_version_str;
1539 ha->isp_ops.intr_handler = qla24xx_intr_handler;
1540 ha->isp_ops.enable_intrs = qla24xx_enable_intrs;
1541 ha->isp_ops.disable_intrs = qla24xx_disable_intrs;
1542 ha->isp_ops.abort_command = qla24xx_abort_command;
1543 ha->isp_ops.abort_target = qla24xx_abort_target;
1544 ha->isp_ops.fabric_login = qla24xx_login_fabric;
1545 ha->isp_ops.fabric_logout = qla24xx_fabric_logout;
1546 ha->isp_ops.prep_ms_iocb = qla24xx_prep_ms_iocb;
cca5335c 1547 ha->isp_ops.prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb;
fca29703
AV		 1548 ha->isp_ops.read_nvram = qla24xx_read_nvram_data;
1549 ha->isp_ops.write_nvram = qla24xx_write_nvram_data;
1550 ha->isp_ops.fw_dump = qla24xx_fw_dump;
854165f4
AV		 1551 ha->isp_ops.read_optrom = qla24xx_read_optrom_data;
1552 ha->isp_ops.write_optrom = qla24xx_write_optrom_data;
f6df144c
AV		 1553 ha->isp_ops.beacon_on = qla24xx_beacon_on;
1554 ha->isp_ops.beacon_off = qla24xx_beacon_off;
1555 ha->isp_ops.beacon_blink = qla24xx_beacon_blink;
30c47662 1556 ha->isp_ops.get_flash_version = qla24xx_get_flash_version;
fca29703 1557 ha->gid_list_info_size = 8;
854165f4 1558 ha->optrom_size = OPTROM_SIZE_24XX;
1da177e4
LT		 1559 }
1560 host->can_queue = ha->request_q_length + 128;
1561
1562 /* load the F/W, read paramaters, and init the H/W */
1563 ha->instance = num_hosts;
1564
1565 init_MUTEX(&ha->mbx_cmd_sem);
1566 init_MUTEX_LOCKED(&ha->mbx_intr_sem);
1567
1568 INIT_LIST_HEAD(&ha->list);
1569 INIT_LIST_HEAD(&ha->fcports);
1da177e4 1570
1da177e4
LT		 1571 qla2x00_config_dma_addressing(ha);
1572 if (qla2x00_mem_alloc(ha)) {
1573 qla_printk(KERN_WARNING, ha,
1574 "[ERROR] Failed to allocate memory for adapter\n");
1575
a1541d5a
AV		 1576 ret = -ENOMEM;
1577 goto probe_failed;
1da177e4
LT		 1578 }
1579
1580 if (qla2x00_initialize_adapter(ha) &&
1581 !(ha->device_flags & DFLG_NO_CABLE)) {
1582
1583 qla_printk(KERN_WARNING, ha,
1584 "Failed to initialize adapter\n");
1585
1586 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
1587 "Adapter flags %x.\n",
1588 ha->host_no, ha->device_flags));
1589
a1541d5a 1590 ret = -ENODEV;
1da177e4
LT		 1591 goto probe_failed;
1592 }
1593
1594 /*
1595 * Startup the kernel thread for this host adapter
1596 */
39a11240
CH		 1597 ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
1598 "%s_dpc", ha->host_str);
1599 if (IS_ERR(ha->dpc_thread)) {
1da177e4
LT		 1600 qla_printk(KERN_WARNING, ha,
1601 "Unable to start DPC thread!\n");
39a11240 1602 ret = PTR_ERR(ha->dpc_thread);
1da177e4
LT		 1603 goto probe_failed;
1604 }
1da177e4 1605
a1541d5a
AV		 1606 host->this_id = 255;
1607 host->cmd_per_lun = 3;
1608 host->unique_id = ha->instance;
1609 host->max_cmd_len = MAX_CMDSZ;
75bc4190 1610 host->max_channel = MAX_BUSES - 1;
a1541d5a
AV		 1611 host->max_lun = MAX_LUNS;
1612 host->transportt = qla2xxx_transport_template;
1613
a8488abe
AV		 1614 ret = qla2x00_request_irqs(ha);
1615 if (ret)
1da177e4 1616 goto probe_failed;
1da177e4
LT		 1617
1618 /* Initialized the timer */
1619 qla2x00_start_timer(ha, qla2x00_timer, WATCH_INTERVAL);
1620
1621 DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
1622 ha->host_no, ha));
1623
abbd8870 1624 ha->isp_ops.disable_intrs(ha);
1da177e4 1625
1da177e4 1626 spin_lock_irqsave(&ha->hardware_lock, flags);
fca29703 1627 reg = ha->iobase;
044cc6c8 1628 if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
fca29703
AV		 1629 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_HOST_INT);
1630 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_RISC_INT);
1631 } else {
1632 WRT_REG_WORD(&reg->isp.semaphore, 0);
1633 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_RISC_INT);
1634 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_HOST_INT);
1635
1636 /* Enable proper parity */
1637 if (!IS_QLA2100(ha) && !IS_QLA2200(ha)) {
1638 if (IS_QLA2300(ha))
1639 /* SRAM parity */
1640 WRT_REG_WORD(&reg->isp.hccr,
1641 (HCCR_ENABLE_PARITY + 0x1));
1642 else
1643 /* SRAM, Instruction RAM and GP RAM parity */
1644 WRT_REG_WORD(&reg->isp.hccr,
1645 (HCCR_ENABLE_PARITY + 0x7));
1646 }
1da177e4
LT		 1647 }
1648 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1649
abbd8870 1650 ha->isp_ops.enable_intrs(ha);
1da177e4 1651
a1541d5a 1652 pci_set_drvdata(pdev, ha);
d19044c3 1653
1da177e4 1654 ha->flags.init_done = 1;
d19044c3
AV		 1655 ha->flags.online = 1;
1656
1da177e4
LT		 1657 num_hosts++;
1658
a1541d5a
AV		 1659 ret = scsi_add_host(host, &pdev->dev);
1660 if (ret)
1661 goto probe_failed;
1662
1e99e33a
AV		 1663 scsi_scan_host(host);
1664
a1541d5a
AV		 1665 qla2x00_alloc_sysfs_attr(ha);
1666
1667 qla2x00_init_host_attr(ha);
1668
1da177e4
LT		 1669 qla_printk(KERN_INFO, ha, "\n"
1670 " QLogic Fibre Channel HBA Driver: %s\n"
1671 " QLogic %s - %s\n"
5433383e
AV		 1672 " ISP%04X: %s @ %s hdma%c, host#=%ld, fw=%s\n",
1673 qla2x00_version_str, ha->model_number,
1674 ha->model_desc ? ha->model_desc: "", pdev->device,
1675 ha->isp_ops.pci_info_str(ha, pci_info), pci_name(pdev),
1676 ha->flags.enable_64bit_addressing ? '+': '-', ha->host_no,
1677 ha->isp_ops.fw_version_str(ha, fw_str));
1da177e4 1678
1da177e4
LT		 1679 return 0;
1680
1681probe_failed:
1682 qla2x00_free_device(ha);
1683
1684 scsi_host_put(host);
1685
1686probe_disable_device:
1687 pci_disable_device(pdev);
1688
a1541d5a
AV		 1689probe_out:
1690 return ret;
1da177e4 1691}
1da177e4 1692
7ee61397
AV		 1693static void __devexit
1694qla2x00_remove_one(struct pci_dev *pdev)
1da177e4
LT		 1695{
1696 scsi_qla_host_t *ha;
1697
1698 ha = pci_get_drvdata(pdev);
1699
8482e118 1700 qla2x00_free_sysfs_attr(ha);
1da177e4 1701
bdf79621
AV		 1702 fc_remove_host(ha->host);
1703
1da177e4
LT		 1704 scsi_remove_host(ha->host);
1705
1706 qla2x00_free_device(ha);
1707
1708 scsi_host_put(ha->host);
1709
1710 pci_set_drvdata(pdev, NULL);
1711}
1da177e4
LT		 1712
1713static void
1714qla2x00_free_device(scsi_qla_host_t *ha)
1715{
1da177e4
LT		 1716 /* Disable timer */
1717 if (ha->timer_active)
1718 qla2x00_stop_timer(ha);
1719
1720 /* Kill the kernel thread for this host */
39a11240
CH		 1721 if (ha->dpc_thread) {
1722 struct task_struct *t = ha->dpc_thread;
1da177e4 1723
39a11240
CH		 1724 /*
1725 * qla2xxx_wake_dpc checks for ->dpc_thread
1726 * so we need to zero it out.
1727 */
1728 ha->dpc_thread = NULL;
1729 kthread_stop(t);
1da177e4
LT		 1730 }
1731
a7a167bf
AV		 1732 if (ha->eft)
1733 qla2x00_trace_control(ha, TC_DISABLE, 0, 0);
1734
18c6c127
AV		 1735 ha->flags.online = 0;
1736
f6ef3b18 1737 /* Stop currently executing firmware. */
18c6c127 1738 qla2x00_try_to_stop_firmware(ha);
1da177e4 1739
f6ef3b18
AV		 1740 /* turn-off interrupts on the card */
1741 if (ha->interrupts_on)
1742 ha->isp_ops.disable_intrs(ha);
1743
1744 qla2x00_mem_free(ha);
1da177e4 1745
a8488abe 1746 qla2x00_free_irqs(ha);
1da177e4
LT		 1747
1748 /* release io space registers */
1749 if (ha->iobase)
1750 iounmap(ha->iobase);
1751 pci_release_regions(ha->pdev);
1752
1753 pci_disable_device(ha->pdev);
1754}
1755
d97994dc
AV		 1756static inline void
1757qla2x00_schedule_rport_del(struct scsi_qla_host *ha, fc_port_t *fcport,
1758 int defer)
1759{
1760 unsigned long flags;
1761 struct fc_rport *rport;
1762
1763 if (!fcport->rport)
1764 return;
1765
1766 rport = fcport->rport;
1767 if (defer) {
1768 spin_lock_irqsave(&fcport->rport_lock, flags);
1769 fcport->drport = rport;
1770 fcport->rport = NULL;
387f96b4 1771 *(fc_port_t **)rport->dd_data = NULL;
d97994dc
AV		 1772 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1773 set_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags);
1774 } else {
1775 spin_lock_irqsave(&fcport->rport_lock, flags);
1776 fcport->rport = NULL;
387f96b4 1777 *(fc_port_t **)rport->dd_data = NULL;
d97994dc
AV		 1778 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1779 fc_remote_port_delete(rport);
1780 }
1781}
1782
1da177e4
LT		 1783/*
1784 * qla2x00_mark_device_lost Updates fcport state when device goes offline.
1785 *
1786 * Input: ha = adapter block pointer. fcport = port structure pointer.
1787 *
1788 * Return: None.
1789 *
1790 * Context:
1791 */
1792void qla2x00_mark_device_lost(scsi_qla_host_t *ha, fc_port_t *fcport,
d97994dc 1793 int do_login, int defer)
1da177e4 1794{
d97994dc
AV		 1795 if (atomic_read(&fcport->state) == FCS_ONLINE)
1796 qla2x00_schedule_rport_del(ha, fcport, defer);
19a7b4ae 1797
fa2a1ce5 1798 /*
1da177e4
LT		 1799 * We may need to retry the login, so don't change the state of the
1800 * port but do the retries.
1801 */
1802 if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
1803 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1804
1805 if (!do_login)
1806 return;
1807
1808 if (fcport->login_retry == 0) {
1809 fcport->login_retry = ha->login_retry_count;
1810 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
1811
1812 DEBUG(printk("scsi(%ld): Port login retry: "
1813 "%02x%02x%02x%02x%02x%02x%02x%02x, "
1814 "id = 0x%04x retry cnt=%d\n",
1815 ha->host_no,
1816 fcport->port_name[0],
1817 fcport->port_name[1],
1818 fcport->port_name[2],
1819 fcport->port_name[3],
1820 fcport->port_name[4],
1821 fcport->port_name[5],
1822 fcport->port_name[6],
1823 fcport->port_name[7],
1824 fcport->loop_id,
1825 fcport->login_retry));
1826 }
1827}
1828
1829/*
1830 * qla2x00_mark_all_devices_lost
1831 * Updates fcport state when device goes offline.
1832 *
1833 * Input:
1834 * ha = adapter block pointer.
1835 * fcport = port structure pointer.
1836 *
1837 * Return:
1838 * None.
1839 *
1840 * Context:
1841 */
1842void
d97994dc 1843qla2x00_mark_all_devices_lost(scsi_qla_host_t *ha, int defer)
1da177e4
LT		 1844{
1845 fc_port_t *fcport;
1846
1847 list_for_each_entry(fcport, &ha->fcports, list) {
1848 if (fcport->port_type != FCT_TARGET)
1849 continue;
1850
1851 /*
1852 * No point in marking the device as lost, if the device is
1853 * already DEAD.
1854 */
1855 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
1856 continue;
d97994dc
AV		 1857 if (atomic_read(&fcport->state) == FCS_ONLINE)
1858 qla2x00_schedule_rport_del(ha, fcport, defer);
1da177e4
LT		 1859 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1860 }
d97994dc 1861
39a11240
CH		 1862 if (defer)
1863 qla2xxx_wake_dpc(ha);
1da177e4
LT		 1864}
1865
1866/*
1867* qla2x00_mem_alloc
1868* Allocates adapter memory.
1869*
1870* Returns:
1871* 0 = success.
1872* 1 = failure.
1873*/
1874static uint8_t
1875qla2x00_mem_alloc(scsi_qla_host_t *ha)
1876{
1877 char name[16];
1878 uint8_t status = 1;
1879 int retry= 10;
1880
1881 do {
1882 /*
1883 * This will loop only once if everything goes well, else some
1884 * number of retries will be performed to get around a kernel
1885 * bug where available mem is not allocated until after a
1886 * little delay and a retry.
1887 */
1888 ha->request_ring = dma_alloc_coherent(&ha->pdev->dev,
1889 (ha->request_q_length + 1) * sizeof(request_t),
1890 &ha->request_dma, GFP_KERNEL);
1891 if (ha->request_ring == NULL) {
1892 qla_printk(KERN_WARNING, ha,
1893 "Memory Allocation failed - request_ring\n");
1894
1895 qla2x00_mem_free(ha);
1896 msleep(100);
1897
1898 continue;
1899 }
1900
1901 ha->response_ring = dma_alloc_coherent(&ha->pdev->dev,
1902 (ha->response_q_length + 1) * sizeof(response_t),
1903 &ha->response_dma, GFP_KERNEL);
1904 if (ha->response_ring == NULL) {
1905 qla_printk(KERN_WARNING, ha,
1906 "Memory Allocation failed - response_ring\n");
1907
1908 qla2x00_mem_free(ha);
1909 msleep(100);
1910
1911 continue;
1912 }
1913
1914 ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
1915 &ha->gid_list_dma, GFP_KERNEL);
1916 if (ha->gid_list == NULL) {
1917 qla_printk(KERN_WARNING, ha,
1918 "Memory Allocation failed - gid_list\n");
1919
1920 qla2x00_mem_free(ha);
1921 msleep(100);
1922
1923 continue;
1924 }
1925
cb63067a
AV		 1926 snprintf(name, sizeof(name), "%s_%ld", QLA2XXX_DRIVER_NAME,
1927 ha->host_no);
1da177e4
LT		 1928 ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
1929 DMA_POOL_SIZE, 8, 0);
1930 if (ha->s_dma_pool == NULL) {
1931 qla_printk(KERN_WARNING, ha,
1932 "Memory Allocation failed - s_dma_pool\n");
1933
1934 qla2x00_mem_free(ha);
1935 msleep(100);
1936
1937 continue;
1938 }
1939
1940 /* get consistent memory allocated for init control block */
1941 ha->init_cb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
1942 &ha->init_cb_dma);
1943 if (ha->init_cb == NULL) {
1944 qla_printk(KERN_WARNING, ha,
1945 "Memory Allocation failed - init_cb\n");
1946
1947 qla2x00_mem_free(ha);
1948 msleep(100);
1949
1950 continue;
1951 }
fca29703 1952 memset(ha->init_cb, 0, ha->init_cb_size);
1da177e4 1953
1da177e4
LT		 1954 if (qla2x00_allocate_sp_pool(ha)) {
1955 qla_printk(KERN_WARNING, ha,
1956 "Memory Allocation failed - "
1957 "qla2x00_allocate_sp_pool()\n");
1958
1959 qla2x00_mem_free(ha);
1960 msleep(100);
1961
1962 continue;
1963 }
1964
1965 /* Allocate memory for SNS commands */
1966 if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
1967 /* Get consistent memory allocated for SNS commands */
1968 ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
1969 sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma,
1970 GFP_KERNEL);
1971 if (ha->sns_cmd == NULL) {
1972 /* error */
1973 qla_printk(KERN_WARNING, ha,
1974 "Memory Allocation failed - sns_cmd\n");
1975
1976 qla2x00_mem_free(ha);
1977 msleep(100);
1978
1979 continue;
1980 }
1981 memset(ha->sns_cmd, 0, sizeof(struct sns_cmd_pkt));
1982 } else {
1983 /* Get consistent memory allocated for MS IOCB */
1984 ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
1985 &ha->ms_iocb_dma);
1986 if (ha->ms_iocb == NULL) {
1987 /* error */
1988 qla_printk(KERN_WARNING, ha,
1989 "Memory Allocation failed - ms_iocb\n");
1990
1991 qla2x00_mem_free(ha);
1992 msleep(100);
1993
1994 continue;
1995 }
1996 memset(ha->ms_iocb, 0, sizeof(ms_iocb_entry_t));
1997
1998 /*
1999 * Get consistent memory allocated for CT SNS
2000 * commands
2001 */
2002 ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
2003 sizeof(struct ct_sns_pkt), &ha->ct_sns_dma,
2004 GFP_KERNEL);
2005 if (ha->ct_sns == NULL) {
2006 /* error */
2007 qla_printk(KERN_WARNING, ha,
2008 "Memory Allocation failed - ct_sns\n");
2009
2010 qla2x00_mem_free(ha);
2011 msleep(100);
2012
2013 continue;
2014 }
2015 memset(ha->ct_sns, 0, sizeof(struct ct_sns_pkt));
88729e53
AV		 2016
2017 if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
2018 /*
2019 * Get consistent memory allocated for SFP
2020 * block.
2021 */
2022 ha->sfp_data = dma_pool_alloc(ha->s_dma_pool,
2023 GFP_KERNEL, &ha->sfp_data_dma);
2024 if (ha->sfp_data == NULL) {
2025 qla_printk(KERN_WARNING, ha,
2026 "Memory Allocation failed - "
2027 "sfp_data\n");
2028
2029 qla2x00_mem_free(ha);
2030 msleep(100);
2031
2032 continue;
2033 }
2034 memset(ha->sfp_data, 0, SFP_BLOCK_SIZE);
2035 }
1da177e4
LT		 2036 }
2037
2038 /* Done all allocations without any error. */
2039 status = 0;
2040
2041 } while (retry-- && status != 0);
2042
2043 if (status) {
2044 printk(KERN_WARNING
2045 "%s(): **** FAILED ****\n", __func__);
2046 }
2047
2048 return(status);
2049}
2050
2051/*
2052* qla2x00_mem_free
2053* Frees all adapter allocated memory.
2054*
2055* Input:
2056* ha = adapter block pointer.
2057*/
2058static void
2059qla2x00_mem_free(scsi_qla_host_t *ha)
2060{
1da177e4
LT		 2061 struct list_head *fcpl, *fcptemp;
2062 fc_port_t *fcport;
1da177e4
LT		 2063
2064 if (ha == NULL) {
2065 /* error */
2066 DEBUG2(printk("%s(): ERROR invalid ha pointer.\n", __func__));
2067 return;
2068 }
2069
1da177e4
LT		 2070 /* free sp pool */
2071 qla2x00_free_sp_pool(ha);
2072
a7a167bf
AV		 2073 if (ha->fw_dump) {
2074 if (ha->eft)
2075 dma_free_coherent(&ha->pdev->dev,
2076 ntohl(ha->fw_dump->eft_size), ha->eft, ha->eft_dma);
2077 vfree(ha->fw_dump);
2078 }
2079
1da177e4
LT		 2080 if (ha->sns_cmd)
2081 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
2082 ha->sns_cmd, ha->sns_cmd_dma);
2083
2084 if (ha->ct_sns)
2085 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2086 ha->ct_sns, ha->ct_sns_dma);
2087
88729e53
AV		 2088 if (ha->sfp_data)
2089 dma_pool_free(ha->s_dma_pool, ha->sfp_data, ha->sfp_data_dma);
2090
1da177e4
LT		 2091 if (ha->ms_iocb)
2092 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2093
1da177e4
LT		 2094 if (ha->init_cb)
2095 dma_pool_free(ha->s_dma_pool, ha->init_cb, ha->init_cb_dma);
2096
2097 if (ha->s_dma_pool)
2098 dma_pool_destroy(ha->s_dma_pool);
2099
1da177e4
LT		 2100 if (ha->gid_list)
2101 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2102 ha->gid_list_dma);
2103
2104 if (ha->response_ring)
2105 dma_free_coherent(&ha->pdev->dev,
2106 (ha->response_q_length + 1) * sizeof(response_t),
2107 ha->response_ring, ha->response_dma);
2108
2109 if (ha->request_ring)
2110 dma_free_coherent(&ha->pdev->dev,
2111 (ha->request_q_length + 1) * sizeof(request_t),
2112 ha->request_ring, ha->request_dma);
2113
a7a167bf
AV		 2114 ha->eft = NULL;
2115 ha->eft_dma = 0;
1da177e4
LT		 2116 ha->sns_cmd = NULL;
2117 ha->sns_cmd_dma = 0;
2118 ha->ct_sns = NULL;
2119 ha->ct_sns_dma = 0;
2120 ha->ms_iocb = NULL;
2121 ha->ms_iocb_dma = 0;
1da177e4
LT		 2122 ha->init_cb = NULL;
2123 ha->init_cb_dma = 0;
2124
2125 ha->s_dma_pool = NULL;
2126
1da177e4
LT		 2127 ha->gid_list = NULL;
2128 ha->gid_list_dma = 0;
2129
2130 ha->response_ring = NULL;
2131 ha->response_dma = 0;
2132 ha->request_ring = NULL;
2133 ha->request_dma = 0;
2134
2135 list_for_each_safe(fcpl, fcptemp, &ha->fcports) {
2136 fcport = list_entry(fcpl, fc_port_t, list);
2137
1da177e4
LT		 2138 /* fc ports */
2139 list_del_init(&fcport->list);
2140 kfree(fcport);
2141 }
2142 INIT_LIST_HEAD(&ha->fcports);
2143
1da177e4 2144 ha->fw_dump = NULL;
fca29703 2145 ha->fw_dumped = 0;
1da177e4 2146 ha->fw_dump_reading = 0;
854165f4
AV		 2147
2148 vfree(ha->optrom_buffer);
1da177e4
LT		 2149}
2150
2151/*
2152 * qla2x00_allocate_sp_pool
2153 * This routine is called during initialization to allocate
2154 * memory for local srb_t.
2155 *
2156 * Input:
2157 * ha = adapter block pointer.
2158 *
2159 * Context:
2160 * Kernel context.
1da177e4
LT		 2161 */
2162static int
fa2a1ce5 2163qla2x00_allocate_sp_pool(scsi_qla_host_t *ha)
1da177e4
LT		 2164{
2165 int rval;
2166
2167 rval = QLA_SUCCESS;
93d2341c 2168 ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
1da177e4
LT		 2169 if (ha->srb_mempool == NULL) {
2170 qla_printk(KERN_INFO, ha, "Unable to allocate SRB mempool.\n");
2171 rval = QLA_FUNCTION_FAILED;
2172 }
2173 return (rval);
2174}
2175
2176/*
2177 * This routine frees all adapter allocated memory.
fa2a1ce5 2178 *
1da177e4
LT		 2179 */
2180static void
fa2a1ce5 2181qla2x00_free_sp_pool( scsi_qla_host_t *ha)
1da177e4
LT		 2182{
2183 if (ha->srb_mempool) {
2184 mempool_destroy(ha->srb_mempool);
2185 ha->srb_mempool = NULL;
2186 }
2187}
2188
2189/**************************************************************************
2190* qla2x00_do_dpc
2191* This kernel thread is a task that is schedule by the interrupt handler
2192* to perform the background processing for interrupts.
2193*
2194* Notes:
2195* This task always run in the context of a kernel thread. It
2196* is kick-off by the driver's detect code and starts up
2197* up one per adapter. It immediately goes to sleep and waits for
2198* some fibre event. When either the interrupt handler or
2199* the timer routine detects a event it will one of the task
2200* bits then wake us up.
2201**************************************************************************/
2202static int
2203qla2x00_do_dpc(void *data)
2204{
1da177e4
LT		 2205 scsi_qla_host_t *ha;
2206 fc_port_t *fcport;
1da177e4 2207 uint8_t status;
1da177e4 2208 uint16_t next_loopid;
1da177e4
LT		 2209
2210 ha = (scsi_qla_host_t *)data;
2211
1da177e4
LT		 2212 set_user_nice(current, -20);
2213
39a11240 2214 while (!kthread_should_stop()) {
1da177e4
LT		 2215 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
2216
39a11240
CH		 2217 set_current_state(TASK_INTERRUPTIBLE);
2218 schedule();
2219 __set_current_state(TASK_RUNNING);
1da177e4
LT		 2220
2221 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
2222
2223 /* Initialization not yet finished. Don't do anything yet. */
39a11240 2224 if (!ha->flags.init_done)
1da177e4
LT		 2225 continue;
2226
2227 DEBUG3(printk("scsi(%ld): DPC handler\n", ha->host_no));
2228
2229 ha->dpc_active = 1;
2230
1da177e4 2231 if (ha->flags.mbox_busy) {
1da177e4
LT		 2232 ha->dpc_active = 0;
2233 continue;
2234 }
2235
2236 if (test_and_clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) {
2237
2238 DEBUG(printk("scsi(%ld): dpc: sched "
2239 "qla2x00_abort_isp ha = %p\n",
2240 ha->host_no, ha));
2241 if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
2242 &ha->dpc_flags))) {
2243
2244 if (qla2x00_abort_isp(ha)) {
2245 /* failed. retry later */
2246 set_bit(ISP_ABORT_NEEDED,
2247 &ha->dpc_flags);
2248 }
2249 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2250 }
2251 DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
2252 ha->host_no));
2253 }
2254
d97994dc
AV		 2255 if (test_and_clear_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags))
2256 qla2x00_update_fcports(ha);
2257
91ca7b01
AV		 2258 if (test_and_clear_bit(LOOP_RESET_NEEDED, &ha->dpc_flags)) {
2259 DEBUG(printk("scsi(%ld): dpc: sched loop_reset()\n",
2260 ha->host_no));
2261 qla2x00_loop_reset(ha);
2262 }
2263
1da177e4
LT		 2264 if (test_and_clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) &&
2265 (!(test_and_set_bit(RESET_ACTIVE, &ha->dpc_flags)))) {
2266
2267 DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
2268 ha->host_no));
2269
2270 qla2x00_rst_aen(ha);
2271 clear_bit(RESET_ACTIVE, &ha->dpc_flags);
2272 }
2273
2274 /* Retry each device up to login retry count */
2275 if ((test_and_clear_bit(RELOGIN_NEEDED, &ha->dpc_flags)) &&
2276 !test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) &&
2277 atomic_read(&ha->loop_state) != LOOP_DOWN) {
2278
2279 DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
2280 ha->host_no));
2281
2282 next_loopid = 0;
2283 list_for_each_entry(fcport, &ha->fcports, list) {
1da177e4
LT		 2284 /*
2285 * If the port is not ONLINE then try to login
2286 * to it if we haven't run out of retries.
2287 */
2288 if (atomic_read(&fcport->state) != FCS_ONLINE &&
2289 fcport->login_retry) {
2290
2291 fcport->login_retry--;
2292 if (fcport->flags & FCF_FABRIC_DEVICE) {
2293 if (fcport->flags &
2294 FCF_TAPE_PRESENT)
abbd8870 2295 ha->isp_ops.fabric_logout(
1c7c6357
AV		 2296 ha, fcport->loop_id,
2297 fcport->d_id.b.domain,
2298 fcport->d_id.b.area,
2299 fcport->d_id.b.al_pa);
1da177e4
LT		 2300 status = qla2x00_fabric_login(
2301 ha, fcport, &next_loopid);
2302 } else
2303 status =
2304 qla2x00_local_device_login(
9a52a57c 2305 ha, fcport);
1da177e4
LT		 2306
2307 if (status == QLA_SUCCESS) {
2308 fcport->old_loop_id = fcport->loop_id;
2309
2310 DEBUG(printk("scsi(%ld): port login OK: logged in ID 0x%x\n",
2311 ha->host_no, fcport->loop_id));
fa2a1ce5 2312
052c40c8
AV		 2313 qla2x00_update_fcport(ha,
2314 fcport);
1da177e4
LT		 2315 } else if (status == 1) {
2316 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
2317 /* retry the login again */
2318 DEBUG(printk("scsi(%ld): Retrying %d login again loop_id 0x%x\n",
2319 ha->host_no,
2320 fcport->login_retry, fcport->loop_id));
2321 } else {
2322 fcport->login_retry = 0;
2323 }
2324 }
2325 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2326 break;
2327 }
2328 DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
2329 ha->host_no));
2330 }
2331
2332 if ((test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags)) &&
2333 atomic_read(&ha->loop_state) != LOOP_DOWN) {
2334
2335 clear_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags);
2336 DEBUG(printk("scsi(%ld): qla2x00_login_retry()\n",
2337 ha->host_no));
fa2a1ce5 2338
1da177e4
LT		 2339 set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
2340
2341 DEBUG(printk("scsi(%ld): qla2x00_login_retry - end\n",
2342 ha->host_no));
2343 }
2344
2345 if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
2346
2347 DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
2348 ha->host_no));
2349
2350 if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
2351 &ha->dpc_flags))) {
2352
2353 qla2x00_loop_resync(ha);
2354
2355 clear_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags);
2356 }
2357
2358 DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
2359 ha->host_no));
2360 }
2361
1da177e4
LT		 2362 if (test_and_clear_bit(FCPORT_RESCAN_NEEDED, &ha->dpc_flags)) {
2363
2364 DEBUG(printk("scsi(%ld): Rescan flagged fcports...\n",
2365 ha->host_no));
2366
2367 qla2x00_rescan_fcports(ha);
2368
2369 DEBUG(printk("scsi(%ld): Rescan flagged fcports..."
2370 "end.\n",
2371 ha->host_no));
2372 }
2373
1da177e4 2374 if (!ha->interrupts_on)
abbd8870 2375 ha->isp_ops.enable_intrs(ha);
1da177e4 2376
f6df144c
AV		 2377 if (test_and_clear_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags))
2378 ha->isp_ops.beacon_blink(ha);
2379
1da177e4
LT		 2380 ha->dpc_active = 0;
2381 } /* End of while(1) */
2382
2383 DEBUG(printk("scsi(%ld): DPC handler exiting\n", ha->host_no));
2384
2385 /*
2386 * Make sure that nobody tries to wake us up again.
2387 */
1da177e4
LT		 2388 ha->dpc_active = 0;
2389
39a11240
CH		 2390 return 0;
2391}
2392
2393void
2394qla2xxx_wake_dpc(scsi_qla_host_t *ha)
2395{
2396 if (ha->dpc_thread)
2397 wake_up_process(ha->dpc_thread);
1da177e4
LT		 2398}
2399
1da177e4
LT		 2400/*
2401* qla2x00_rst_aen
2402* Processes asynchronous reset.
2403*
2404* Input:
2405* ha = adapter block pointer.
2406*/
2407static void
fa2a1ce5 2408qla2x00_rst_aen(scsi_qla_host_t *ha)
1da177e4
LT		 2409{
2410 if (ha->flags.online && !ha->flags.reset_active &&
2411 !atomic_read(&ha->loop_down_timer) &&
2412 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) {
2413 do {
2414 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
2415
2416 /*
2417 * Issue marker command only when we are going to start
2418 * the I/O.
2419 */
2420 ha->marker_needed = 1;
2421 } while (!atomic_read(&ha->loop_down_timer) &&
2422 (test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags)));
2423 }
2424}
2425
f4f051eb
AV		 2426static void
2427qla2x00_sp_free_dma(scsi_qla_host_t *ha, srb_t *sp)
2428{
2429 struct scsi_cmnd *cmd = sp->cmd;
2430
2431 if (sp->flags & SRB_DMA_VALID) {
2432 if (cmd->use_sg) {
2433 dma_unmap_sg(&ha->pdev->dev, cmd->request_buffer,
2434 cmd->use_sg, cmd->sc_data_direction);
2435 } else if (cmd->request_bufflen) {
2436 dma_unmap_single(&ha->pdev->dev, sp->dma_handle,
2437 cmd->request_bufflen, cmd->sc_data_direction);
2438 }
2439 sp->flags &= ~SRB_DMA_VALID;
2440 }
fca29703 2441 CMD_SP(cmd) = NULL;
f4f051eb
AV		 2442}
2443
2444void
2445qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *sp)
2446{
2447 struct scsi_cmnd *cmd = sp->cmd;
2448
2449 qla2x00_sp_free_dma(ha, sp);
2450
f4f051eb
AV		 2451 mempool_free(sp, ha->srb_mempool);
2452
2453 cmd->scsi_done(cmd);
2454}
bdf79621 2455
1da177e4
LT		 2456/**************************************************************************
2457* qla2x00_timer
2458*
2459* Description:
2460* One second timer
2461*
2462* Context: Interrupt
2463***************************************************************************/
2464static void
2465qla2x00_timer(scsi_qla_host_t *ha)
2466{
1da177e4
LT		 2467 unsigned long cpu_flags = 0;
2468 fc_port_t *fcport;
1da177e4
LT		 2469 int start_dpc = 0;
2470 int index;
2471 srb_t *sp;
f4f051eb 2472 int t;
1da177e4
LT		 2473
2474 /*
2475 * Ports - Port down timer.
2476 *
2477 * Whenever, a port is in the LOST state we start decrementing its port
2478 * down timer every second until it reaches zero. Once it reaches zero
fa2a1ce5 2479 * the port it marked DEAD.
1da177e4
LT		 2480 */
2481 t = 0;
2482 list_for_each_entry(fcport, &ha->fcports, list) {
2483 if (fcport->port_type != FCT_TARGET)
2484 continue;
2485
2486 if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
2487
2488 if (atomic_read(&fcport->port_down_timer) == 0)
2489 continue;
2490
fa2a1ce5 2491 if (atomic_dec_and_test(&fcport->port_down_timer) != 0)
1da177e4 2492 atomic_set(&fcport->state, FCS_DEVICE_DEAD);
fa2a1ce5 2493
1da177e4 2494 DEBUG(printk("scsi(%ld): fcport-%d - port retry count: "
fca29703 2495 "%d remaining\n",
1da177e4
LT		 2496 ha->host_no,
2497 t, atomic_read(&fcport->port_down_timer)));
2498 }
2499 t++;
2500 } /* End of for fcport */
2501
1da177e4
LT		 2502
2503 /* Loop down handler. */
2504 if (atomic_read(&ha->loop_down_timer) > 0 &&
2505 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags)) && ha->flags.online) {
2506
2507 if (atomic_read(&ha->loop_down_timer) ==
2508 ha->loop_down_abort_time) {
2509
2510 DEBUG(printk("scsi(%ld): Loop Down - aborting the "
2511 "queues before time expire\n",
2512 ha->host_no));
2513
2514 if (!IS_QLA2100(ha) && ha->link_down_timeout)
fa2a1ce5 2515 atomic_set(&ha->loop_state, LOOP_DEAD);
1da177e4
LT		 2516
2517 /* Schedule an ISP abort to return any tape commands. */
2518 spin_lock_irqsave(&ha->hardware_lock, cpu_flags);
2519 for (index = 1; index < MAX_OUTSTANDING_COMMANDS;
2520 index++) {
bdf79621
AV		 2521 fc_port_t *sfcp;
2522
1da177e4
LT		 2523 sp = ha->outstanding_cmds[index];
2524 if (!sp)
2525 continue;
bdf79621
AV		 2526 sfcp = sp->fcport;
2527 if (!(sfcp->flags & FCF_TAPE_PRESENT))
1da177e4
LT		 2528 continue;
2529
2530 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2531 break;
2532 }
2533 spin_unlock_irqrestore(&ha->hardware_lock, cpu_flags);
2534
2535 set_bit(ABORT_QUEUES_NEEDED, &ha->dpc_flags);
2536 start_dpc++;
2537 }
2538
2539 /* if the loop has been down for 4 minutes, reinit adapter */
2540 if (atomic_dec_and_test(&ha->loop_down_timer) != 0) {
2541 DEBUG(printk("scsi(%ld): Loop down exceed 4 mins - "
2542 "restarting queues.\n",
2543 ha->host_no));
2544
2545 set_bit(RESTART_QUEUES_NEEDED, &ha->dpc_flags);
2546 start_dpc++;
2547
2548 if (!(ha->device_flags & DFLG_NO_CABLE)) {
2549 DEBUG(printk("scsi(%ld): Loop down - "
2550 "aborting ISP.\n",
2551 ha->host_no));
2552 qla_printk(KERN_WARNING, ha,
2553 "Loop down - aborting ISP.\n");
2554
2555 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2556 }
2557 }
fca29703 2558 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
1da177e4
LT		 2559 ha->host_no,
2560 atomic_read(&ha->loop_down_timer)));
2561 }
2562
f6df144c
AV		 2563 /* Check if beacon LED needs to be blinked */
2564 if (ha->beacon_blink_led == 1) {
2565 set_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags);
2566 start_dpc++;
2567 }
2568
1da177e4
LT		 2569 /* Schedule the DPC routine if needed */
2570 if ((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags) ||
2571 test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) ||
91ca7b01 2572 test_bit(LOOP_RESET_NEEDED, &ha->dpc_flags) ||
d97994dc 2573 test_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags) ||
1da177e4
LT		 2574 start_dpc ||
2575 test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags) ||
f4f051eb 2576 test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) ||
f6df144c 2577 test_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags) ||
39a11240
CH		 2578 test_bit(RELOGIN_NEEDED, &ha->dpc_flags)))
2579 qla2xxx_wake_dpc(ha);
1da177e4
LT		 2580
2581 qla2x00_restart_timer(ha, WATCH_INTERVAL);
2582}
2583
1da177e4
LT		 2584/* XXX(hch): crude hack to emulate a down_timeout() */
2585int
2586qla2x00_down_timeout(struct semaphore *sema, unsigned long timeout)
2587{
fe74c71f
AV		 2588 const unsigned int step = 100; /* msecs */
2589 unsigned int iterations = jiffies_to_msecs(timeout)/100;
1da177e4
LT		 2590
2591 do {
2592 if (!down_trylock(sema))
2593 return 0;
fe74c71f 2594 if (msleep_interruptible(step))
1da177e4 2595 break;
fe74c71f 2596 } while (--iterations >= 0);
1da177e4
LT		 2597
2598 return -ETIMEDOUT;
2599}
2600
5433383e
AV		 2601/* Firmware interface routines. */
2602
48c02fde 2603#define FW_BLOBS 5
5433383e
AV		 2604#define FW_ISP21XX 0
2605#define FW_ISP22XX 1
2606#define FW_ISP2300 2
2607#define FW_ISP2322 3
48c02fde 2608#define FW_ISP24XX 4
5433383e 2609
bb8ee499
AV		 2610#define FW_FILE_ISP21XX "ql2100_fw.bin"
2611#define FW_FILE_ISP22XX "ql2200_fw.bin"
2612#define FW_FILE_ISP2300 "ql2300_fw.bin"
2613#define FW_FILE_ISP2322 "ql2322_fw.bin"
2614#define FW_FILE_ISP24XX "ql2400_fw.bin"
2615
5433383e
AV		 2616static DECLARE_MUTEX(qla_fw_lock);
2617
2618static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
bb8ee499
AV		 2619 { .name = FW_FILE_ISP21XX, .segs = { 0x1000, 0 }, },
2620 { .name = FW_FILE_ISP22XX, .segs = { 0x1000, 0 }, },
2621 { .name = FW_FILE_ISP2300, .segs = { 0x800, 0 }, },
2622 { .name = FW_FILE_ISP2322, .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
2623 { .name = FW_FILE_ISP24XX, },
5433383e
AV		 2624};
2625
2626struct fw_blob *
2627qla2x00_request_firmware(scsi_qla_host_t *ha)
2628{
2629 struct fw_blob *blob;
2630
2631 blob = NULL;
2632 if (IS_QLA2100(ha)) {
2633 blob = &qla_fw_blobs[FW_ISP21XX];
2634 } else if (IS_QLA2200(ha)) {
2635 blob = &qla_fw_blobs[FW_ISP22XX];
48c02fde 2636 } else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
5433383e 2637 blob = &qla_fw_blobs[FW_ISP2300];
48c02fde 2638 } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
5433383e 2639 blob = &qla_fw_blobs[FW_ISP2322];
044cc6c8 2640 } else if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
5433383e
AV		 2641 blob = &qla_fw_blobs[FW_ISP24XX];
2642 }
2643
2644 down(&qla_fw_lock);
2645 if (blob->fw)
2646 goto out;
2647
2648 if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
2649 DEBUG2(printk("scsi(%ld): Failed to load firmware image "
2650 "(%s).\n", ha->host_no, blob->name));
2651 blob->fw = NULL;
2652 blob = NULL;
2653 goto out;
2654 }
2655
2656out:
2657 up(&qla_fw_lock);
2658 return blob;
2659}
2660
2661static void
2662qla2x00_release_firmware(void)
2663{
2664 int idx;
2665
2666 down(&qla_fw_lock);
2667 for (idx = 0; idx < FW_BLOBS; idx++)
2668 if (qla_fw_blobs[idx].fw)
2669 release_firmware(qla_fw_blobs[idx].fw);
2670 up(&qla_fw_lock);
2671}
2672
5433383e 2673static struct pci_device_id qla2xxx_pci_tbl[] = {
47f5e069
AV		 2674 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
2675 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
2676 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
2677 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
2678 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
2679 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
2680 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
2681 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
2682 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
2683 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
2684 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
5433383e
AV		 2685 { 0 },
2686};
2687MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
2688
fca29703 2689static struct pci_driver qla2xxx_pci_driver = {
cb63067a 2690 .name = QLA2XXX_DRIVER_NAME,
0a21ef1e
JB		 2691 .driver = {
2692 .owner = THIS_MODULE,
2693 },
fca29703 2694 .id_table = qla2xxx_pci_tbl,
7ee61397
AV		 2695 .probe = qla2x00_probe_one,
2696 .remove = __devexit_p(qla2x00_remove_one),
fca29703
AV		 2697};
2698
1da177e4
LT		 2699/**
2700 * qla2x00_module_init - Module initialization.
2701 **/
2702static int __init
2703qla2x00_module_init(void)
2704{
fca29703
AV		 2705 int ret = 0;
2706
1da177e4 2707 /* Allocate cache for SRBs. */
354d6b21 2708 srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
1da177e4
LT		 2709 SLAB_HWCACHE_ALIGN, NULL, NULL);
2710 if (srb_cachep == NULL) {
2711 printk(KERN_ERR
2712 "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
2713 return -ENOMEM;
2714 }
2715
2716 /* Derive version string. */
2717 strcpy(qla2x00_version_str, QLA2XXX_VERSION);
11010fec 2718 if (ql2xextended_error_logging)
0181944f
AV		 2719 strcat(qla2x00_version_str, "-debug");
2720
1c97a12a
AV		 2721 qla2xxx_transport_template =
2722 fc_attach_transport(&qla2xxx_transport_functions);
1da177e4
LT		 2723 if (!qla2xxx_transport_template)
2724 return -ENODEV;
2725
2726 printk(KERN_INFO "QLogic Fibre Channel HBA Driver\n");
7ee61397 2727 ret = pci_register_driver(&qla2xxx_pci_driver);
fca29703
AV		 2728 if (ret) {
2729 kmem_cache_destroy(srb_cachep);
2730 fc_release_transport(qla2xxx_transport_template);
2731 }
2732 return ret;
1da177e4
LT		 2733}
2734
2735/**
2736 * qla2x00_module_exit - Module cleanup.
2737 **/
2738static void __exit
2739qla2x00_module_exit(void)
2740{
7ee61397 2741 pci_unregister_driver(&qla2xxx_pci_driver);
5433383e 2742 qla2x00_release_firmware();
354d6b21 2743 kmem_cache_destroy(srb_cachep);
1da177e4
LT		 2744 fc_release_transport(qla2xxx_transport_template);
2745}
2746
2747module_init(qla2x00_module_init);
2748module_exit(qla2x00_module_exit);
2749
2750MODULE_AUTHOR("QLogic Corporation");
2751MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
2752MODULE_LICENSE("GPL");
2753MODULE_VERSION(QLA2XXX_VERSION);
bb8ee499
AV		 2754MODULE_FIRMWARE(FW_FILE_ISP21XX);
2755MODULE_FIRMWARE(FW_FILE_ISP22XX);
2756MODULE_FIRMWARE(FW_FILE_ISP2300);
2757MODULE_FIRMWARE(FW_FILE_ISP2322);
2758MODULE_FIRMWARE(FW_FILE_ISP24XX);
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