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[SCSI] qla2xxx: Correct 'loop-down' determination logic in qla2x00_fw_ready().
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / scsi / qla2xxx / qla_os.c
CommitLineData
1da177e4 1/*
fa90c54f
AV		 2 * QLogic Fibre Channel HBA Driver
3 * Copyright (c) 2003-2005 QLogic Corporation
1da177e4 4 *
fa90c54f 5 * See LICENSE.qla2xxx for copyright and licensing details.
1da177e4
LT		 6 */
7#include "qla_def.h"
8
9#include <linux/moduleparam.h>
10#include <linux/vmalloc.h>
1da177e4 11#include <linux/delay.h>
39a11240 12#include <linux/kthread.h>
1da177e4
LT		 13
14#include <scsi/scsi_tcq.h>
15#include <scsi/scsicam.h>
16#include <scsi/scsi_transport.h>
17#include <scsi/scsi_transport_fc.h>
18
19/*
20 * Driver version
21 */
22char qla2x00_version_str[40];
23
24/*
25 * SRB allocation cache
26 */
354d6b21 27static kmem_cache_t *srb_cachep;
1da177e4
LT		 28
29/*
30 * Ioctl related information.
31 */
354d6b21 32static int num_hosts;
1da177e4
LT		 33
34int ql2xlogintimeout = 20;
35module_param(ql2xlogintimeout, int, S_IRUGO|S_IRUSR);
36MODULE_PARM_DESC(ql2xlogintimeout,
37 "Login timeout value in seconds.");
38
8482e118 39int qlport_down_retry = 30;
1da177e4
LT		 40module_param(qlport_down_retry, int, S_IRUGO|S_IRUSR);
41MODULE_PARM_DESC(qlport_down_retry,
42 "Maximum number of command retries to a port that returns"
43 "a PORT-DOWN status.");
44
1da177e4
LT		 45int ql2xplogiabsentdevice;
46module_param(ql2xplogiabsentdevice, int, S_IRUGO|S_IWUSR);
47MODULE_PARM_DESC(ql2xplogiabsentdevice,
48 "Option to enable PLOGI to devices that are not present after "
49 "a Fabric scan. This is needed for several broken switches."
50 "Default is 0 - no PLOGI. 1 - perfom PLOGI.");
51
1da177e4
LT		 52int ql2xloginretrycount = 0;
53module_param(ql2xloginretrycount, int, S_IRUGO|S_IRUSR);
54MODULE_PARM_DESC(ql2xloginretrycount,
55 "Specify an alternate value for the NVRAM login retry count.");
56
a7a167bf
AV		 57int ql2xallocfwdump = 1;
58module_param(ql2xallocfwdump, int, S_IRUGO|S_IRUSR);
59MODULE_PARM_DESC(ql2xallocfwdump,
60 "Option to enable allocation of memory for a firmware dump "
61 "during HBA initialization. Memory allocation requirements "
62 "vary by ISP type. Default is 1 - allocate memory.");
63
0181944f
AV		 64int extended_error_logging;
65module_param(extended_error_logging, int, S_IRUGO|S_IRUSR);
66MODULE_PARM_DESC(extended_error_logging,
67 "Option to enable extended error logging, "
68 "Default is 0 - no logging. 1 - log errors.");
69
1da177e4
LT		 70static void qla2x00_free_device(scsi_qla_host_t *);
71
72static void qla2x00_config_dma_addressing(scsi_qla_host_t *ha);
73
cca5335c
AV		 74int ql2xfdmienable;
75module_param(ql2xfdmienable, int, S_IRUGO|S_IRUSR);
76MODULE_PARM_DESC(ql2xfdmienable,
77 "Enables FDMI registratons "
78 "Default is 0 - no FDMI. 1 - perfom FDMI.");
79
1da177e4 80/*
fa2a1ce5 81 * SCSI host template entry points
1da177e4
LT		 82 */
83static int qla2xxx_slave_configure(struct scsi_device * device);
f4f051eb
AV		 84static int qla2xxx_slave_alloc(struct scsi_device *);
85static void qla2xxx_slave_destroy(struct scsi_device *);
1da177e4
LT		 86static int qla2x00_queuecommand(struct scsi_cmnd *cmd,
87 void (*fn)(struct scsi_cmnd *));
fca29703
AV		 88static int qla24xx_queuecommand(struct scsi_cmnd *cmd,
89 void (*fn)(struct scsi_cmnd *));
1da177e4
LT		 90static int qla2xxx_eh_abort(struct scsi_cmnd *);
91static int qla2xxx_eh_device_reset(struct scsi_cmnd *);
92static int qla2xxx_eh_bus_reset(struct scsi_cmnd *);
93static int qla2xxx_eh_host_reset(struct scsi_cmnd *);
94static int qla2x00_loop_reset(scsi_qla_host_t *ha);
95static int qla2x00_device_reset(scsi_qla_host_t *, fc_port_t *);
96
ce7e4af7
AV		 97static int qla2x00_change_queue_depth(struct scsi_device *, int);
98static int qla2x00_change_queue_type(struct scsi_device *, int);
99
1da177e4
LT		 100static struct scsi_host_template qla2x00_driver_template = {
101 .module = THIS_MODULE,
cb63067a 102 .name = QLA2XXX_DRIVER_NAME,
1da177e4
LT		 103 .queuecommand = qla2x00_queuecommand,
104
105 .eh_abort_handler = qla2xxx_eh_abort,
106 .eh_device_reset_handler = qla2xxx_eh_device_reset,
107 .eh_bus_reset_handler = qla2xxx_eh_bus_reset,
108 .eh_host_reset_handler = qla2xxx_eh_host_reset,
109
110 .slave_configure = qla2xxx_slave_configure,
111
f4f051eb
AV		 112 .slave_alloc = qla2xxx_slave_alloc,
113 .slave_destroy = qla2xxx_slave_destroy,
ce7e4af7
AV		 114 .change_queue_depth = qla2x00_change_queue_depth,
115 .change_queue_type = qla2x00_change_queue_type,
1da177e4
LT		 116 .this_id = -1,
117 .cmd_per_lun = 3,
118 .use_clustering = ENABLE_CLUSTERING,
119 .sg_tablesize = SG_ALL,
120
121 /*
122 * The RISC allows for each command to transfer (2^32-1) bytes of data,
123 * which equates to 0x800000 sectors.
124 */
125 .max_sectors = 0xFFFF,
afb046e2 126 .shost_attrs = qla2x00_host_attrs,
1da177e4
LT		 127};
128
fca29703
AV		 129static struct scsi_host_template qla24xx_driver_template = {
130 .module = THIS_MODULE,
cb63067a 131 .name = QLA2XXX_DRIVER_NAME,
fca29703
AV		 132 .queuecommand = qla24xx_queuecommand,
133
134 .eh_abort_handler = qla2xxx_eh_abort,
135 .eh_device_reset_handler = qla2xxx_eh_device_reset,
136 .eh_bus_reset_handler = qla2xxx_eh_bus_reset,
137 .eh_host_reset_handler = qla2xxx_eh_host_reset,
138
139 .slave_configure = qla2xxx_slave_configure,
140
141 .slave_alloc = qla2xxx_slave_alloc,
142 .slave_destroy = qla2xxx_slave_destroy,
ce7e4af7
AV		 143 .change_queue_depth = qla2x00_change_queue_depth,
144 .change_queue_type = qla2x00_change_queue_type,
fca29703
AV		 145 .this_id = -1,
146 .cmd_per_lun = 3,
147 .use_clustering = ENABLE_CLUSTERING,
148 .sg_tablesize = SG_ALL,
149
150 .max_sectors = 0xFFFF,
afb046e2 151 .shost_attrs = qla2x00_host_attrs,
fca29703
AV		 152};
153
1da177e4
LT		 154static struct scsi_transport_template *qla2xxx_transport_template = NULL;
155
1da177e4
LT		 156/* TODO Convert to inlines
157 *
158 * Timer routines
159 */
160#define WATCH_INTERVAL 1 /* number of seconds */
161
162static void qla2x00_timer(scsi_qla_host_t *);
163
164static __inline__ void qla2x00_start_timer(scsi_qla_host_t *,
165 void *, unsigned long);
166static __inline__ void qla2x00_restart_timer(scsi_qla_host_t *, unsigned long);
167static __inline__ void qla2x00_stop_timer(scsi_qla_host_t *);
168
169static inline void
170qla2x00_start_timer(scsi_qla_host_t *ha, void *func, unsigned long interval)
171{
172 init_timer(&ha->timer);
173 ha->timer.expires = jiffies + interval * HZ;
174 ha->timer.data = (unsigned long)ha;
175 ha->timer.function = (void (*)(unsigned long))func;
176 add_timer(&ha->timer);
177 ha->timer_active = 1;
178}
179
180static inline void
181qla2x00_restart_timer(scsi_qla_host_t *ha, unsigned long interval)
182{
183 mod_timer(&ha->timer, jiffies + interval * HZ);
184}
185
186static __inline__ void
187qla2x00_stop_timer(scsi_qla_host_t *ha)
188{
189 del_timer_sync(&ha->timer);
190 ha->timer_active = 0;
191}
192
1da177e4
LT		 193static int qla2x00_do_dpc(void *data);
194
195static void qla2x00_rst_aen(scsi_qla_host_t *);
196
197static uint8_t qla2x00_mem_alloc(scsi_qla_host_t *);
198static void qla2x00_mem_free(scsi_qla_host_t *ha);
199static int qla2x00_allocate_sp_pool( scsi_qla_host_t *ha);
200static void qla2x00_free_sp_pool(scsi_qla_host_t *ha);
f4f051eb
AV		 201static void qla2x00_sp_free_dma(scsi_qla_host_t *, srb_t *);
202void qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *);
1da177e4 203
1da177e4
LT		 204/* -------------------------------------------------------------------------- */
205
1da177e4 206static char *
abbd8870 207qla2x00_pci_info_str(struct scsi_qla_host *ha, char *str)
1da177e4
LT		 208{
209 static char *pci_bus_modes[] = {
210 "33", "66", "100", "133",
211 };
212 uint16_t pci_bus;
213
214 strcpy(str, "PCI");
215 pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
216 if (pci_bus) {
217 strcat(str, "-X (");
218 strcat(str, pci_bus_modes[pci_bus]);
219 } else {
220 pci_bus = (ha->pci_attr & BIT_8) >> 8;
221 strcat(str, " (");
222 strcat(str, pci_bus_modes[pci_bus]);
223 }
224 strcat(str, " MHz)");
225
226 return (str);
227}
228
fca29703
AV		 229static char *
230qla24xx_pci_info_str(struct scsi_qla_host *ha, char *str)
231{
232 static char *pci_bus_modes[] = { "33", "66", "100", "133", };
233 uint32_t pci_bus;
234 int pcie_reg;
235
236 pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
237 if (pcie_reg) {
238 char lwstr[6];
239 uint16_t pcie_lstat, lspeed, lwidth;
240
241 pcie_reg += 0x12;
242 pci_read_config_word(ha->pdev, pcie_reg, &pcie_lstat);
243 lspeed = pcie_lstat & (BIT_0 | BIT_1 | BIT_2 | BIT_3);
244 lwidth = (pcie_lstat &
245 (BIT_4 | BIT_5 | BIT_6 | BIT_7 | BIT_8 | BIT_9)) >> 4;
246
247 strcpy(str, "PCIe (");
248 if (lspeed == 1)
249 strcat(str, "2.5Gb/s ");
250 else
251 strcat(str, "<unknown> ");
252 snprintf(lwstr, sizeof(lwstr), "x%d)", lwidth);
253 strcat(str, lwstr);
254
255 return str;
256 }
257
258 strcpy(str, "PCI");
259 pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
260 if (pci_bus == 0 || pci_bus == 8) {
261 strcat(str, " (");
262 strcat(str, pci_bus_modes[pci_bus >> 3]);
263 } else {
264 strcat(str, "-X ");
265 if (pci_bus & BIT_2)
266 strcat(str, "Mode 2");
267 else
268 strcat(str, "Mode 1");
269 strcat(str, " (");
270 strcat(str, pci_bus_modes[pci_bus & ~BIT_2]);
271 }
272 strcat(str, " MHz)");
273
274 return str;
275}
276
1da177e4 277char *
abbd8870 278qla2x00_fw_version_str(struct scsi_qla_host *ha, char *str)
1da177e4
LT		 279{
280 char un_str[10];
fa2a1ce5 281
1da177e4
LT		 282 sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
283 ha->fw_minor_version,
284 ha->fw_subminor_version);
285
286 if (ha->fw_attributes & BIT_9) {
287 strcat(str, "FLX");
288 return (str);
289 }
290
291 switch (ha->fw_attributes & 0xFF) {
292 case 0x7:
293 strcat(str, "EF");
294 break;
295 case 0x17:
296 strcat(str, "TP");
297 break;
298 case 0x37:
299 strcat(str, "IP");
300 break;
301 case 0x77:
302 strcat(str, "VI");
303 break;
304 default:
305 sprintf(un_str, "(%x)", ha->fw_attributes);
306 strcat(str, un_str);
307 break;
308 }
309 if (ha->fw_attributes & 0x100)
310 strcat(str, "X");
311
312 return (str);
313}
314
fca29703
AV		 315char *
316qla24xx_fw_version_str(struct scsi_qla_host *ha, char *str)
317{
f0883ac6
AV		 318 sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
319 ha->fw_minor_version,
320 ha->fw_subminor_version);
321
fca29703
AV		 322 if (ha->fw_attributes & BIT_0)
323 strcat(str, "[Class 2] ");
324 if (ha->fw_attributes & BIT_1)
325 strcat(str, "[IP] ");
326 if (ha->fw_attributes & BIT_2)
327 strcat(str, "[Multi-ID] ");
328 if (ha->fw_attributes & BIT_13)
329 strcat(str, "[Experimental]");
330 return str;
fca29703
AV		 331}
332
333static inline srb_t *
334qla2x00_get_new_sp(scsi_qla_host_t *ha, fc_port_t *fcport,
335 struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
336{
337 srb_t *sp;
338
339 sp = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
340 if (!sp)
341 return sp;
342
fca29703
AV		 343 sp->ha = ha;
344 sp->fcport = fcport;
345 sp->cmd = cmd;
346 sp->flags = 0;
347 CMD_SP(cmd) = (void *)sp;
348 cmd->scsi_done = done;
349
350 return sp;
351}
352
1da177e4 353static int
f4f051eb 354qla2x00_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
1da177e4 355{
f4f051eb 356 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
bdf79621 357 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
19a7b4ae 358 struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
f4f051eb
AV		 359 srb_t *sp;
360 int rval;
1da177e4 361
19a7b4ae
JSEC		 362 rval = fc_remote_port_chkready(rport);
363 if (rval) {
364 cmd->result = rval;
f4f051eb
AV		 365 goto qc_fail_command;
366 }
1da177e4 367
387f96b4
AV		 368 /* Close window on fcport/rport state-transitioning. */
369 if (!*(fc_port_t **)rport->dd_data) {
370 cmd->result = DID_IMM_RETRY << 16;
371 goto qc_fail_command;
372 }
373
f4f051eb
AV		 374 if (atomic_read(&fcport->state) != FCS_ONLINE) {
375 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
376 atomic_read(&ha->loop_state) == LOOP_DEAD) {
377 cmd->result = DID_NO_CONNECT << 16;
378 goto qc_fail_command;
379 }
380 goto qc_host_busy;
381 }
1da177e4
LT		 382
383 spin_unlock_irq(ha->host->host_lock);
384
fca29703
AV		 385 sp = qla2x00_get_new_sp(ha, fcport, cmd, done);
386 if (!sp)
f4f051eb 387 goto qc_host_busy_lock;
1da177e4 388
f4f051eb
AV		 389 rval = qla2x00_start_scsi(sp);
390 if (rval != QLA_SUCCESS)
391 goto qc_host_busy_free_sp;
1da177e4 392
f4f051eb 393 spin_lock_irq(ha->host->host_lock);
1da177e4 394
f4f051eb 395 return 0;
1da177e4 396
f4f051eb
AV		 397qc_host_busy_free_sp:
398 qla2x00_sp_free_dma(ha, sp);
f4f051eb 399 mempool_free(sp, ha->srb_mempool);
1da177e4 400
f4f051eb
AV		 401qc_host_busy_lock:
402 spin_lock_irq(ha->host->host_lock);
1da177e4 403
f4f051eb
AV		 404qc_host_busy:
405 return SCSI_MLQUEUE_HOST_BUSY;
1da177e4 406
f4f051eb
AV		 407qc_fail_command:
408 done(cmd);
1da177e4 409
f4f051eb 410 return 0;
1da177e4
LT		 411}
412
fca29703
AV		 413
414static int
415qla24xx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
416{
417 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
418 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
19a7b4ae 419 struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
fca29703
AV		 420 srb_t *sp;
421 int rval;
422
19a7b4ae
JSEC		 423 rval = fc_remote_port_chkready(rport);
424 if (rval) {
425 cmd->result = rval;
fca29703
AV		 426 goto qc24_fail_command;
427 }
428
387f96b4
AV		 429 /* Close window on fcport/rport state-transitioning. */
430 if (!*(fc_port_t **)rport->dd_data) {
431 cmd->result = DID_IMM_RETRY << 16;
432 goto qc24_fail_command;
433 }
434
fca29703
AV		 435 if (atomic_read(&fcport->state) != FCS_ONLINE) {
436 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
437 atomic_read(&ha->loop_state) == LOOP_DEAD) {
438 cmd->result = DID_NO_CONNECT << 16;
439 goto qc24_fail_command;
440 }
441 goto qc24_host_busy;
442 }
443
444 spin_unlock_irq(ha->host->host_lock);
445
446 sp = qla2x00_get_new_sp(ha, fcport, cmd, done);
447 if (!sp)
448 goto qc24_host_busy_lock;
449
450 rval = qla24xx_start_scsi(sp);
451 if (rval != QLA_SUCCESS)
452 goto qc24_host_busy_free_sp;
453
454 spin_lock_irq(ha->host->host_lock);
455
456 return 0;
457
458qc24_host_busy_free_sp:
459 qla2x00_sp_free_dma(ha, sp);
460 mempool_free(sp, ha->srb_mempool);
461
462qc24_host_busy_lock:
463 spin_lock_irq(ha->host->host_lock);
464
465qc24_host_busy:
466 return SCSI_MLQUEUE_HOST_BUSY;
467
468qc24_fail_command:
469 done(cmd);
470
471 return 0;
472}
473
474
1da177e4
LT		 475/*
476 * qla2x00_eh_wait_on_command
477 * Waits for the command to be returned by the Firmware for some
478 * max time.
479 *
480 * Input:
481 * ha = actual ha whose done queue will contain the command
482 * returned by firmware.
483 * cmd = Scsi Command to wait on.
484 * flag = Abort/Reset(Bus or Device Reset)
485 *
486 * Return:
487 * Not Found : 0
488 * Found : 1
489 */
490static int
491qla2x00_eh_wait_on_command(scsi_qla_host_t *ha, struct scsi_cmnd *cmd)
492{
fe74c71f
AV		 493#define ABORT_POLLING_PERIOD 1000
494#define ABORT_WAIT_ITER ((10 * 1000) / (ABORT_POLLING_PERIOD))
f4f051eb
AV		 495 unsigned long wait_iter = ABORT_WAIT_ITER;
496 int ret = QLA_SUCCESS;
1da177e4 497
f4f051eb 498 while (CMD_SP(cmd)) {
fe74c71f 499 msleep(ABORT_POLLING_PERIOD);
1da177e4 500
f4f051eb
AV		 501 if (--wait_iter)
502 break;
503 }
504 if (CMD_SP(cmd))
505 ret = QLA_FUNCTION_FAILED;
1da177e4 506
f4f051eb 507 return ret;
1da177e4
LT		 508}
509
510/*
511 * qla2x00_wait_for_hba_online
fa2a1ce5 512 * Wait till the HBA is online after going through
1da177e4
LT		 513 * <= MAX_RETRIES_OF_ISP_ABORT or
514 * finally HBA is disabled ie marked offline
515 *
516 * Input:
517 * ha - pointer to host adapter structure
fa2a1ce5
AV		 518 *
519 * Note:
1da177e4
LT		 520 * Does context switching-Release SPIN_LOCK
521 * (if any) before calling this routine.
522 *
523 * Return:
524 * Success (Adapter is online) : 0
525 * Failed (Adapter is offline/disabled) : 1
526 */
854165f4 527int
1da177e4
LT		 528qla2x00_wait_for_hba_online(scsi_qla_host_t *ha)
529{
fca29703
AV		 530 int return_status;
531 unsigned long wait_online;
1da177e4 532
fa2a1ce5 533 wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
1da177e4
LT		 534 while (((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) ||
535 test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags) ||
536 test_bit(ISP_ABORT_RETRY, &ha->dpc_flags) ||
537 ha->dpc_active) && time_before(jiffies, wait_online)) {
538
539 msleep(1000);
540 }
fa2a1ce5
AV		 541 if (ha->flags.online)
542 return_status = QLA_SUCCESS;
1da177e4
LT		 543 else
544 return_status = QLA_FUNCTION_FAILED;
545
546 DEBUG2(printk("%s return_status=%d\n",__func__,return_status));
547
548 return (return_status);
549}
550
551/*
552 * qla2x00_wait_for_loop_ready
553 * Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
fa2a1ce5 554 * to be in LOOP_READY state.
1da177e4
LT		 555 * Input:
556 * ha - pointer to host adapter structure
fa2a1ce5
AV		 557 *
558 * Note:
1da177e4
LT		 559 * Does context switching-Release SPIN_LOCK
560 * (if any) before calling this routine.
fa2a1ce5 561 *
1da177e4
LT		 562 *
563 * Return:
564 * Success (LOOP_READY) : 0
565 * Failed (LOOP_NOT_READY) : 1
566 */
fa2a1ce5 567static inline int
1da177e4
LT		 568qla2x00_wait_for_loop_ready(scsi_qla_host_t *ha)
569{
570 int return_status = QLA_SUCCESS;
571 unsigned long loop_timeout ;
572
573 /* wait for 5 min at the max for loop to be ready */
fa2a1ce5 574 loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ);
1da177e4
LT		 575
576 while ((!atomic_read(&ha->loop_down_timer) &&
577 atomic_read(&ha->loop_state) == LOOP_DOWN) ||
1da177e4 578 atomic_read(&ha->loop_state) != LOOP_READY) {
57680080
RA		 579 if (atomic_read(&ha->loop_state) == LOOP_DEAD) {
580 return_status = QLA_FUNCTION_FAILED;
581 break;
582 }
1da177e4
LT		 583 msleep(1000);
584 if (time_after_eq(jiffies, loop_timeout)) {
585 return_status = QLA_FUNCTION_FAILED;
586 break;
587 }
588 }
fa2a1ce5 589 return (return_status);
1da177e4
LT		 590}
591
592/**************************************************************************
593* qla2xxx_eh_abort
594*
595* Description:
596* The abort function will abort the specified command.
597*
598* Input:
599* cmd = Linux SCSI command packet to be aborted.
600*
601* Returns:
602* Either SUCCESS or FAILED.
603*
604* Note:
2ea00202 605* Only return FAILED if command not returned by firmware.
1da177e4
LT		 606**************************************************************************/
607int
608qla2xxx_eh_abort(struct scsi_cmnd *cmd)
609{
f4f051eb
AV		 610 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
611 srb_t *sp;
612 int ret, i;
613 unsigned int id, lun;
614 unsigned long serial;
18e144d3 615 unsigned long flags;
2ea00202 616 int wait = 0;
1da177e4 617
f4f051eb 618 if (!CMD_SP(cmd))
2ea00202 619 return SUCCESS;
1da177e4 620
2ea00202 621 ret = SUCCESS;
1da177e4 622
f4f051eb
AV		 623 id = cmd->device->id;
624 lun = cmd->device->lun;
625 serial = cmd->serial_number;
1da177e4 626
f4f051eb 627 /* Check active list for command command. */
18e144d3 628 spin_lock_irqsave(&ha->hardware_lock, flags);
f4f051eb
AV		 629 for (i = 1; i < MAX_OUTSTANDING_COMMANDS; i++) {
630 sp = ha->outstanding_cmds[i];
1da177e4 631
f4f051eb
AV		 632 if (sp == NULL)
633 continue;
1da177e4 634
f4f051eb
AV		 635 if (sp->cmd != cmd)
636 continue;
1da177e4 637
75bc4190
AV		 638 DEBUG2(printk("%s(%ld): aborting sp %p from RISC. pid=%ld.\n",
639 __func__, ha->host_no, sp, serial));
744f11fd 640 DEBUG3(qla2x00_print_scsi_cmd(cmd));
1da177e4 641
18e144d3 642 spin_unlock_irqrestore(&ha->hardware_lock, flags);
abbd8870 643 if (ha->isp_ops.abort_command(ha, sp)) {
f4f051eb
AV		 644 DEBUG2(printk("%s(%ld): abort_command "
645 "mbx failed.\n", __func__, ha->host_no));
646 } else {
647 DEBUG3(printk("%s(%ld): abort_command "
648 "mbx success.\n", __func__, ha->host_no));
2ea00202 649 wait = 1;
f4f051eb 650 }
18e144d3 651 spin_lock_irqsave(&ha->hardware_lock, flags);
1da177e4 652
f4f051eb
AV		 653 break;
654 }
18e144d3 655 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1da177e4 656
f4f051eb 657 /* Wait for the command to be returned. */
2ea00202 658 if (wait) {
f4f051eb 659 if (qla2x00_eh_wait_on_command(ha, cmd) != QLA_SUCCESS) {
fa2a1ce5 660 qla_printk(KERN_ERR, ha,
f4f051eb
AV		 661 "scsi(%ld:%d:%d): Abort handler timed out -- %lx "
662 "%x.\n", ha->host_no, id, lun, serial, ret);
2ea00202 663 ret = FAILED;
f4f051eb 664 }
1da177e4 665 }
1da177e4 666
fa2a1ce5 667 qla_printk(KERN_INFO, ha,
2ea00202
MR		 668 "scsi(%ld:%d:%d): Abort command issued -- %d %lx %x.\n",
669 ha->host_no, id, lun, wait, serial, ret);
1da177e4 670
f4f051eb
AV		 671 return ret;
672}
1da177e4 673
f4f051eb
AV		 674/**************************************************************************
675* qla2x00_eh_wait_for_pending_target_commands
676*
677* Description:
678* Waits for all the commands to come back from the specified target.
679*
680* Input:
681* ha - pointer to scsi_qla_host structure.
fa2a1ce5 682* t - target
f4f051eb
AV		 683* Returns:
684* Either SUCCESS or FAILED.
685*
686* Note:
687**************************************************************************/
688static int
689qla2x00_eh_wait_for_pending_target_commands(scsi_qla_host_t *ha, unsigned int t)
690{
691 int cnt;
692 int status;
693 srb_t *sp;
694 struct scsi_cmnd *cmd;
18e144d3 695 unsigned long flags;
1da177e4 696
f4f051eb 697 status = 0;
1da177e4
LT		 698
699 /*
f4f051eb
AV		 700 * Waiting for all commands for the designated target in the active
701 * array
1da177e4
LT		 702 */
703 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
18e144d3 704 spin_lock_irqsave(&ha->hardware_lock, flags);
1da177e4
LT		 705 sp = ha->outstanding_cmds[cnt];
706 if (sp) {
707 cmd = sp->cmd;
18e144d3 708 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1da177e4
LT		 709 if (cmd->device->id == t) {
710 if (!qla2x00_eh_wait_on_command(ha, cmd)) {
711 status = 1;
712 break;
713 }
714 }
f4f051eb 715 } else {
18e144d3 716 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1da177e4
LT		 717 }
718 }
719 return (status);
720}
721
722
723/**************************************************************************
724* qla2xxx_eh_device_reset
725*
726* Description:
727* The device reset function will reset the target and abort any
728* executing commands.
729*
730* NOTE: The use of SP is undefined within this context. Do *NOT*
fa2a1ce5 731* attempt to use this value, even if you determine it is
1da177e4
LT		 732* non-null.
733*
734* Input:
735* cmd = Linux SCSI command packet of the command that cause the
736* bus device reset.
737*
738* Returns:
739* SUCCESS/FAILURE (defined as macro in scsi.h).
740*
741**************************************************************************/
742int
743qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
744{
f4f051eb 745 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
bdf79621 746 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
f4f051eb
AV		 747 srb_t *sp;
748 int ret;
749 unsigned int id, lun;
750 unsigned long serial;
1da177e4 751
f4f051eb 752 ret = FAILED;
1da177e4 753
f4f051eb
AV		 754 id = cmd->device->id;
755 lun = cmd->device->lun;
756 serial = cmd->serial_number;
1da177e4 757
f4f051eb 758 sp = (srb_t *) CMD_SP(cmd);
bdf79621 759 if (!sp || !fcport)
f4f051eb 760 return ret;
1da177e4
LT		 761
762 qla_printk(KERN_INFO, ha,
f4f051eb 763 "scsi(%ld:%d:%d): DEVICE RESET ISSUED.\n", ha->host_no, id, lun);
1da177e4 764
94d0e7b8 765 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
1da177e4 766 goto eh_dev_reset_done;
1da177e4
LT		 767
768 if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
f4f051eb
AV		 769 if (qla2x00_device_reset(ha, fcport) == 0)
770 ret = SUCCESS;
1da177e4
LT		 771
772#if defined(LOGOUT_AFTER_DEVICE_RESET)
f4f051eb
AV		 773 if (ret == SUCCESS) {
774 if (fcport->flags & FC_FABRIC_DEVICE) {
abbd8870 775 ha->isp_ops.fabric_logout(ha, fcport->loop_id);
d97994dc 776 qla2x00_mark_device_lost(ha, fcport, 0, 0);
1da177e4
LT		 777 }
778 }
779#endif
780 } else {
781 DEBUG2(printk(KERN_INFO
744f11fd 782 "%s failed: loop not ready\n",__func__));
1da177e4
LT		 783 }
784
f4f051eb 785 if (ret == FAILED) {
1da177e4
LT		 786 DEBUG3(printk("%s(%ld): device reset failed\n",
787 __func__, ha->host_no));
788 qla_printk(KERN_INFO, ha, "%s: device reset failed\n",
789 __func__);
790
791 goto eh_dev_reset_done;
792 }
793
9a41a62b
AV		 794 /* Flush outstanding commands. */
795 if (qla2x00_eh_wait_for_pending_target_commands(ha, id))
796 ret = FAILED;
797 if (ret == FAILED) {
798 DEBUG3(printk("%s(%ld): failed while waiting for commands\n",
799 __func__, ha->host_no));
800 qla_printk(KERN_INFO, ha,
801 "%s: failed while waiting for commands\n", __func__);
802 } else
803 qla_printk(KERN_INFO, ha,
804 "scsi(%ld:%d:%d): DEVICE RESET SUCCEEDED.\n", ha->host_no,
805 id, lun);
28f22b03 806 eh_dev_reset_done:
f4f051eb 807 return ret;
1da177e4
LT		 808}
809
810/**************************************************************************
811* qla2x00_eh_wait_for_pending_commands
812*
813* Description:
814* Waits for all the commands to come back from the specified host.
815*
816* Input:
817* ha - pointer to scsi_qla_host structure.
818*
819* Returns:
820* 1 : SUCCESS
821* 0 : FAILED
822*
823* Note:
824**************************************************************************/
825static int
826qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *ha)
827{
828 int cnt;
829 int status;
830 srb_t *sp;
831 struct scsi_cmnd *cmd;
18e144d3 832 unsigned long flags;
1da177e4
LT		 833
834 status = 1;
835
836 /*
837 * Waiting for all commands for the designated target in the active
838 * array
839 */
840 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
18e144d3 841 spin_lock_irqsave(&ha->hardware_lock, flags);
1da177e4
LT		 842 sp = ha->outstanding_cmds[cnt];
843 if (sp) {
844 cmd = sp->cmd;
18e144d3 845 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1da177e4
LT		 846 status = qla2x00_eh_wait_on_command(ha, cmd);
847 if (status == 0)
848 break;
849 }
850 else {
18e144d3 851 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1da177e4
LT		 852 }
853 }
854 return (status);
855}
856
857
858/**************************************************************************
859* qla2xxx_eh_bus_reset
860*
861* Description:
862* The bus reset function will reset the bus and abort any executing
863* commands.
864*
865* Input:
866* cmd = Linux SCSI command packet of the command that cause the
867* bus reset.
868*
869* Returns:
870* SUCCESS/FAILURE (defined as macro in scsi.h).
871*
872**************************************************************************/
873int
874qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
875{
f4f051eb 876 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
bdf79621 877 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
1da177e4 878 srb_t *sp;
f4f051eb
AV		 879 int ret;
880 unsigned int id, lun;
881 unsigned long serial;
882
883 ret = FAILED;
884
885 id = cmd->device->id;
886 lun = cmd->device->lun;
887 serial = cmd->serial_number;
1da177e4 888
1da177e4 889 sp = (srb_t *) CMD_SP(cmd);
bdf79621 890 if (!sp || !fcport)
f4f051eb 891 return ret;
1da177e4
LT		 892
893 qla_printk(KERN_INFO, ha,
f4f051eb 894 "scsi(%ld:%d:%d): LOOP RESET ISSUED.\n", ha->host_no, id, lun);
1da177e4 895
1da177e4
LT		 896 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS) {
897 DEBUG2(printk("%s failed:board disabled\n",__func__));
f4f051eb 898 goto eh_bus_reset_done;
1da177e4
LT		 899 }
900
901 if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
f4f051eb
AV		 902 if (qla2x00_loop_reset(ha) == QLA_SUCCESS)
903 ret = SUCCESS;
1da177e4 904 }
f4f051eb
AV		 905 if (ret == FAILED)
906 goto eh_bus_reset_done;
1da177e4 907
9a41a62b
AV		 908 /* Flush outstanding commands. */
909 if (!qla2x00_eh_wait_for_pending_commands(ha))
910 ret = FAILED;
1da177e4 911
f4f051eb 912eh_bus_reset_done:
1da177e4 913 qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
f4f051eb 914 (ret == FAILED) ? "failed" : "succeded");
1da177e4 915
f4f051eb 916 return ret;
1da177e4
LT		 917}
918
919/**************************************************************************
920* qla2xxx_eh_host_reset
921*
922* Description:
923* The reset function will reset the Adapter.
924*
925* Input:
926* cmd = Linux SCSI command packet of the command that cause the
927* adapter reset.
928*
929* Returns:
930* Either SUCCESS or FAILED.
931*
932* Note:
933**************************************************************************/
934int
935qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
936{
f4f051eb 937 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
bdf79621 938 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
f4f051eb
AV		 939 srb_t *sp;
940 int ret;
941 unsigned int id, lun;
942 unsigned long serial;
1da177e4 943
f4f051eb
AV		 944 ret = FAILED;
945
946 id = cmd->device->id;
947 lun = cmd->device->lun;
948 serial = cmd->serial_number;
949
950 sp = (srb_t *) CMD_SP(cmd);
bdf79621 951 if (!sp || !fcport)
f4f051eb 952 return ret;
1da177e4 953
1da177e4 954 qla_printk(KERN_INFO, ha,
f4f051eb 955 "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", ha->host_no, id, lun);
1da177e4 956
1da177e4 957 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
f4f051eb 958 goto eh_host_reset_lock;
1da177e4
LT		 959
960 /*
961 * Fixme-may be dpc thread is active and processing
fa2a1ce5 962 * loop_resync,so wait a while for it to
1da177e4
LT		 963 * be completed and then issue big hammer.Otherwise
964 * it may cause I/O failure as big hammer marks the
965 * devices as lost kicking of the port_down_timer
966 * while dpc is stuck for the mailbox to complete.
967 */
1da177e4
LT		 968 qla2x00_wait_for_loop_ready(ha);
969 set_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
970 if (qla2x00_abort_isp(ha)) {
971 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
972 /* failed. schedule dpc to try */
973 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
974
975 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
f4f051eb 976 goto eh_host_reset_lock;
fa2a1ce5 977 }
1da177e4
LT		 978 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
979
1da177e4 980 /* Waiting for our command in done_queue to be returned to OS.*/
f4f051eb
AV		 981 if (qla2x00_eh_wait_for_pending_commands(ha))
982 ret = SUCCESS;
1da177e4 983
f4f051eb 984eh_host_reset_lock:
f4f051eb
AV		 985 qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
986 (ret == FAILED) ? "failed" : "succeded");
1da177e4 987
f4f051eb
AV		 988 return ret;
989}
1da177e4
LT		 990
991/*
992* qla2x00_loop_reset
993* Issue loop reset.
994*
995* Input:
996* ha = adapter block pointer.
997*
998* Returns:
999* 0 = success
1000*/
1001static int
1002qla2x00_loop_reset(scsi_qla_host_t *ha)
1003{
1004 int status = QLA_SUCCESS;
bdf79621 1005 struct fc_port *fcport;
1da177e4
LT		 1006
1007 if (ha->flags.enable_lip_reset) {
1008 status = qla2x00_lip_reset(ha);
1009 }
1010
1011 if (status == QLA_SUCCESS && ha->flags.enable_target_reset) {
bdf79621
AV		 1012 list_for_each_entry(fcport, &ha->fcports, list) {
1013 if (fcport->port_type != FCT_TARGET)
1da177e4
LT		 1014 continue;
1015
c00c72ae 1016 status = qla2x00_device_reset(ha, fcport);
bdf79621 1017 if (status != QLA_SUCCESS)
1da177e4 1018 break;
1da177e4
LT		 1019 }
1020 }
1021
1022 if (status == QLA_SUCCESS &&
fa2a1ce5 1023 ((!ha->flags.enable_target_reset &&
1da177e4
LT		 1024 !ha->flags.enable_lip_reset) ||
1025 ha->flags.enable_lip_full_login)) {
1026
1027 status = qla2x00_full_login_lip(ha);
1028 }
1029
1030 /* Issue marker command only when we are going to start the I/O */
1031 ha->marker_needed = 1;
1032
1033 if (status) {
1034 /* Empty */
1035 DEBUG2_3(printk("%s(%ld): **** FAILED ****\n",
1036 __func__,
744f11fd 1037 ha->host_no));
1da177e4
LT		 1038 } else {
1039 /* Empty */
1040 DEBUG3(printk("%s(%ld): exiting normally.\n",
1041 __func__,
744f11fd 1042 ha->host_no));
1da177e4
LT		 1043 }
1044
1045 return(status);
1046}
1047
1048/*
1049 * qla2x00_device_reset
1050 * Issue bus device reset message to the target.
1051 *
1052 * Input:
1053 * ha = adapter block pointer.
1054 * t = SCSI ID.
1055 * TARGET_QUEUE_LOCK must be released.
1056 * ADAPTER_STATE_LOCK must be released.
1057 *
1058 * Context:
1059 * Kernel context.
1060 */
1061static int
1062qla2x00_device_reset(scsi_qla_host_t *ha, fc_port_t *reset_fcport)
1063{
1064 /* Abort Target command will clear Reservation */
abbd8870 1065 return ha->isp_ops.abort_target(reset_fcport);
1da177e4
LT		 1066}
1067
f4f051eb
AV		 1068static int
1069qla2xxx_slave_alloc(struct scsi_device *sdev)
1da177e4 1070{
bdf79621 1071 struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1da177e4 1072
19a7b4ae 1073 if (!rport || fc_remote_port_chkready(rport))
f4f051eb 1074 return -ENXIO;
bdf79621 1075
19a7b4ae 1076 sdev->hostdata = *(fc_port_t **)rport->dd_data;
1da177e4 1077
f4f051eb
AV		 1078 return 0;
1079}
1da177e4 1080
f4f051eb
AV		 1081static int
1082qla2xxx_slave_configure(struct scsi_device *sdev)
1083{
8482e118
AV		 1084 scsi_qla_host_t *ha = to_qla_host(sdev->host);
1085 struct fc_rport *rport = starget_to_rport(sdev->sdev_target);
1086
f4f051eb
AV		 1087 if (sdev->tagged_supported)
1088 scsi_activate_tcq(sdev, 32);
1089 else
1090 scsi_deactivate_tcq(sdev, 32);
1da177e4 1091
8482e118
AV		 1092 rport->dev_loss_tmo = ha->port_down_retry_count + 5;
1093
f4f051eb
AV		 1094 return 0;
1095}
1da177e4 1096
f4f051eb
AV		 1097static void
1098qla2xxx_slave_destroy(struct scsi_device *sdev)
1099{
1100 sdev->hostdata = NULL;
1da177e4
LT		 1101}
1102
ce7e4af7
AV		 1103static int
1104qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth)
1105{
1106 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1107 return sdev->queue_depth;
1108}
1109
1110static int
1111qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1112{
1113 if (sdev->tagged_supported) {
1114 scsi_set_tag_type(sdev, tag_type);
1115 if (tag_type)
1116 scsi_activate_tcq(sdev, sdev->queue_depth);
1117 else
1118 scsi_deactivate_tcq(sdev, sdev->queue_depth);
1119 } else
1120 tag_type = 0;
1121
1122 return tag_type;
1123}
1124
1da177e4
LT		 1125/**
1126 * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1127 * @ha: HA context
1128 *
1129 * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1130 * supported addressing method.
1131 */
1132static void
1133qla2x00_config_dma_addressing(scsi_qla_host_t *ha)
1134{
7524f9b9 1135 /* Assume a 32bit DMA mask. */
1da177e4 1136 ha->flags.enable_64bit_addressing = 0;
1da177e4 1137
7524f9b9
AV		 1138 if (!dma_set_mask(&ha->pdev->dev, DMA_64BIT_MASK)) {
1139 /* Any upper-dword bits set? */
1140 if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1141 !pci_set_consistent_dma_mask(ha->pdev, DMA_64BIT_MASK)) {
1142 /* Ok, a 64bit DMA mask is applicable. */
1da177e4 1143 ha->flags.enable_64bit_addressing = 1;
abbd8870
AV		 1144 ha->isp_ops.calc_req_entries = qla2x00_calc_iocbs_64;
1145 ha->isp_ops.build_iocbs = qla2x00_build_scsi_iocbs_64;
7524f9b9 1146 return;
1da177e4 1147 }
1da177e4 1148 }
7524f9b9
AV		 1149
1150 dma_set_mask(&ha->pdev->dev, DMA_32BIT_MASK);
1151 pci_set_consistent_dma_mask(ha->pdev, DMA_32BIT_MASK);
1da177e4
LT		 1152}
1153
ea5b6382
AV		 1154static inline void
1155qla2x00_set_isp_flags(scsi_qla_host_t *ha)
1156{
1157 ha->device_type = DT_EXTENDED_IDS;
1158 switch (ha->pdev->device) {
1159 case PCI_DEVICE_ID_QLOGIC_ISP2100:
1160 ha->device_type |= DT_ISP2100;
1161 ha->device_type &= ~DT_EXTENDED_IDS;
441d1072 1162 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
ea5b6382
AV		 1163 break;
1164 case PCI_DEVICE_ID_QLOGIC_ISP2200:
1165 ha->device_type |= DT_ISP2200;
1166 ha->device_type &= ~DT_EXTENDED_IDS;
441d1072 1167 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
ea5b6382
AV		 1168 break;
1169 case PCI_DEVICE_ID_QLOGIC_ISP2300:
1170 ha->device_type |= DT_ISP2300;
4a59f71d 1171 ha->device_type |= DT_ZIO_SUPPORTED;
441d1072 1172 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
ea5b6382
AV		 1173 break;
1174 case PCI_DEVICE_ID_QLOGIC_ISP2312:
1175 ha->device_type |= DT_ISP2312;
4a59f71d 1176 ha->device_type |= DT_ZIO_SUPPORTED;
441d1072 1177 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
ea5b6382
AV		 1178 break;
1179 case PCI_DEVICE_ID_QLOGIC_ISP2322:
1180 ha->device_type |= DT_ISP2322;
4a59f71d 1181 ha->device_type |= DT_ZIO_SUPPORTED;
ea5b6382
AV		 1182 if (ha->pdev->subsystem_vendor == 0x1028 &&
1183 ha->pdev->subsystem_device == 0x0170)
1184 ha->device_type |= DT_OEM_001;
441d1072 1185 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
ea5b6382
AV		 1186 break;
1187 case PCI_DEVICE_ID_QLOGIC_ISP6312:
1188 ha->device_type |= DT_ISP6312;
441d1072 1189 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
ea5b6382
AV		 1190 break;
1191 case PCI_DEVICE_ID_QLOGIC_ISP6322:
1192 ha->device_type |= DT_ISP6322;
441d1072 1193 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
ea5b6382
AV		 1194 break;
1195 case PCI_DEVICE_ID_QLOGIC_ISP2422:
1196 ha->device_type |= DT_ISP2422;
4a59f71d 1197 ha->device_type |= DT_ZIO_SUPPORTED;
441d1072 1198 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
ea5b6382
AV		 1199 break;
1200 case PCI_DEVICE_ID_QLOGIC_ISP2432:
1201 ha->device_type |= DT_ISP2432;
4a59f71d 1202 ha->device_type |= DT_ZIO_SUPPORTED;
441d1072 1203 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
ea5b6382 1204 break;
044cc6c8
AV		 1205 case PCI_DEVICE_ID_QLOGIC_ISP5422:
1206 ha->device_type |= DT_ISP5422;
441d1072 1207 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
ea5b6382 1208 break;
044cc6c8
AV		 1209 case PCI_DEVICE_ID_QLOGIC_ISP5432:
1210 ha->device_type |= DT_ISP5432;
441d1072 1211 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
ea5b6382
AV		 1212 break;
1213 }
1214}
1215
1da177e4
LT		 1216static int
1217qla2x00_iospace_config(scsi_qla_host_t *ha)
1218{
1219 unsigned long pio, pio_len, pio_flags;
1220 unsigned long mmio, mmio_len, mmio_flags;
1221
1222 /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1223 pio = pci_resource_start(ha->pdev, 0);
1224 pio_len = pci_resource_len(ha->pdev, 0);
1225 pio_flags = pci_resource_flags(ha->pdev, 0);
1226 if (pio_flags & IORESOURCE_IO) {
1227 if (pio_len < MIN_IOBASE_LEN) {
1228 qla_printk(KERN_WARNING, ha,
1229 "Invalid PCI I/O region size (%s)...\n",
1230 pci_name(ha->pdev));
1231 pio = 0;
1232 }
1233 } else {
1234 qla_printk(KERN_WARNING, ha,
1235 "region #0 not a PIO resource (%s)...\n",
1236 pci_name(ha->pdev));
1237 pio = 0;
1238 }
1239
1240 /* Use MMIO operations for all accesses. */
1241 mmio = pci_resource_start(ha->pdev, 1);
1242 mmio_len = pci_resource_len(ha->pdev, 1);
1243 mmio_flags = pci_resource_flags(ha->pdev, 1);
1244
1245 if (!(mmio_flags & IORESOURCE_MEM)) {
1246 qla_printk(KERN_ERR, ha,
1247 "region #0 not an MMIO resource (%s), aborting\n",
1248 pci_name(ha->pdev));
1249 goto iospace_error_exit;
1250 }
1251 if (mmio_len < MIN_IOBASE_LEN) {
1252 qla_printk(KERN_ERR, ha,
1253 "Invalid PCI mem region size (%s), aborting\n",
1254 pci_name(ha->pdev));
1255 goto iospace_error_exit;
1256 }
1257
cb63067a 1258 if (pci_request_regions(ha->pdev, QLA2XXX_DRIVER_NAME)) {
1da177e4
LT		 1259 qla_printk(KERN_WARNING, ha,
1260 "Failed to reserve PIO/MMIO regions (%s)\n",
1261 pci_name(ha->pdev));
1262
1263 goto iospace_error_exit;
1264 }
1265
1266 ha->pio_address = pio;
1267 ha->pio_length = pio_len;
1268 ha->iobase = ioremap(mmio, MIN_IOBASE_LEN);
1269 if (!ha->iobase) {
1270 qla_printk(KERN_ERR, ha,
1271 "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
1272
1273 goto iospace_error_exit;
1274 }
1275
1276 return (0);
1277
1278iospace_error_exit:
1279 return (-ENOMEM);
1280}
1281
abbd8870
AV		 1282static void
1283qla2x00_enable_intrs(scsi_qla_host_t *ha)
1284{
1285 unsigned long flags = 0;
3d71644c 1286 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
abbd8870
AV		 1287
1288 spin_lock_irqsave(&ha->hardware_lock, flags);
1289 ha->interrupts_on = 1;
1290 /* enable risc and host interrupts */
1291 WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1292 RD_REG_WORD(&reg->ictrl);
1293 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1294
1295}
1296
1297static void
1298qla2x00_disable_intrs(scsi_qla_host_t *ha)
1299{
1300 unsigned long flags = 0;
3d71644c 1301 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
abbd8870
AV		 1302
1303 spin_lock_irqsave(&ha->hardware_lock, flags);
1304 ha->interrupts_on = 0;
1305 /* disable risc and host interrupts */
1306 WRT_REG_WORD(&reg->ictrl, 0);
1307 RD_REG_WORD(&reg->ictrl);
1308 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1309}
1310
fca29703
AV		 1311static void
1312qla24xx_enable_intrs(scsi_qla_host_t *ha)
1313{
1314 unsigned long flags = 0;
1315 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1316
1317 spin_lock_irqsave(&ha->hardware_lock, flags);
1318 ha->interrupts_on = 1;
1319 WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1320 RD_REG_DWORD(&reg->ictrl);
1321 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1322}
1323
1324static void
1325qla24xx_disable_intrs(scsi_qla_host_t *ha)
1326{
1327 unsigned long flags = 0;
1328 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1329
1330 spin_lock_irqsave(&ha->hardware_lock, flags);
1331 ha->interrupts_on = 0;
1332 WRT_REG_DWORD(&reg->ictrl, 0);
1333 RD_REG_DWORD(&reg->ictrl);
1334 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1335}
1336
1da177e4
LT		 1337/*
1338 * PCI driver interface
1339 */
441d1072 1340static int qla2x00_probe_one(struct pci_dev *pdev)
1da177e4 1341{
a1541d5a 1342 int ret = -ENODEV;
fca29703 1343 device_reg_t __iomem *reg;
1da177e4
LT		 1344 struct Scsi_Host *host;
1345 scsi_qla_host_t *ha;
1346 unsigned long flags = 0;
1347 unsigned long wait_switch = 0;
1348 char pci_info[20];
1349 char fw_str[30];
8482e118 1350 fc_port_t *fcport;
5433383e 1351 struct scsi_host_template *sht;
1da177e4
LT		 1352
1353 if (pci_enable_device(pdev))
a1541d5a 1354 goto probe_out;
1da177e4 1355
5433383e
AV		 1356 sht = &qla2x00_driver_template;
1357 if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
1358 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432)
1359 sht = &qla24xx_driver_template;
1360 host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
1da177e4
LT		 1361 if (host == NULL) {
1362 printk(KERN_WARNING
1363 "qla2xxx: Couldn't allocate host from scsi layer!\n");
1364 goto probe_disable_device;
1365 }
1366
1367 /* Clear our data area */
1368 ha = (scsi_qla_host_t *)host->hostdata;
1369 memset(ha, 0, sizeof(scsi_qla_host_t));
1370
1371 ha->pdev = pdev;
1372 ha->host = host;
1373 ha->host_no = host->host_no;
cb63067a 1374 sprintf(ha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, ha->host_no);
1da177e4 1375
ea5b6382
AV		 1376 /* Set ISP-type information. */
1377 qla2x00_set_isp_flags(ha);
1378
1da177e4
LT		 1379 /* Configure PCI I/O space */
1380 ret = qla2x00_iospace_config(ha);
a1541d5a
AV		 1381 if (ret)
1382 goto probe_failed;
1da177e4 1383
1da177e4 1384 qla_printk(KERN_INFO, ha,
5433383e
AV		 1385 "Found an ISP%04X, irq %d, iobase 0x%p\n", pdev->device, pdev->irq,
1386 ha->iobase);
1da177e4
LT		 1387
1388 spin_lock_init(&ha->hardware_lock);
1389
1da177e4 1390 ha->prev_topology = 0;
fca29703 1391 ha->init_cb_size = sizeof(init_cb_t);
cca5335c 1392 ha->mgmt_svr_loop_id = MANAGEMENT_SERVER;
04414013 1393 ha->link_data_rate = LDR_UNKNOWN;
854165f4 1394 ha->optrom_size = OPTROM_SIZE_2300;
1da177e4 1395
abbd8870
AV		 1396 /* Assign ISP specific operations. */
1397 ha->isp_ops.pci_config = qla2100_pci_config;
1398 ha->isp_ops.reset_chip = qla2x00_reset_chip;
1399 ha->isp_ops.chip_diag = qla2x00_chip_diag;
1400 ha->isp_ops.config_rings = qla2x00_config_rings;
1401 ha->isp_ops.reset_adapter = qla2x00_reset_adapter;
1402 ha->isp_ops.nvram_config = qla2x00_nvram_config;
1403 ha->isp_ops.update_fw_options = qla2x00_update_fw_options;
0107109e 1404 ha->isp_ops.load_risc = qla2x00_load_risc;
abbd8870
AV		 1405 ha->isp_ops.pci_info_str = qla2x00_pci_info_str;
1406 ha->isp_ops.fw_version_str = qla2x00_fw_version_str;
1407 ha->isp_ops.intr_handler = qla2100_intr_handler;
1408 ha->isp_ops.enable_intrs = qla2x00_enable_intrs;
1409 ha->isp_ops.disable_intrs = qla2x00_disable_intrs;
1410 ha->isp_ops.abort_command = qla2x00_abort_command;
1411 ha->isp_ops.abort_target = qla2x00_abort_target;
1412 ha->isp_ops.fabric_login = qla2x00_login_fabric;
1413 ha->isp_ops.fabric_logout = qla2x00_fabric_logout;
1414 ha->isp_ops.calc_req_entries = qla2x00_calc_iocbs_32;
1415 ha->isp_ops.build_iocbs = qla2x00_build_scsi_iocbs_32;
1416 ha->isp_ops.prep_ms_iocb = qla2x00_prep_ms_iocb;
cca5335c 1417 ha->isp_ops.prep_ms_fdmi_iocb = qla2x00_prep_ms_fdmi_iocb;
459c5378
AV		 1418 ha->isp_ops.read_nvram = qla2x00_read_nvram_data;
1419 ha->isp_ops.write_nvram = qla2x00_write_nvram_data;
abbd8870 1420 ha->isp_ops.fw_dump = qla2100_fw_dump;
854165f4
AV		 1421 ha->isp_ops.read_optrom = qla2x00_read_optrom_data;
1422 ha->isp_ops.write_optrom = qla2x00_write_optrom_data;
1da177e4 1423 if (IS_QLA2100(ha)) {
354d6b21 1424 host->max_id = MAX_TARGETS_2100;
1da177e4
LT		 1425 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
1426 ha->request_q_length = REQUEST_ENTRY_CNT_2100;
1427 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1428 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1429 host->sg_tablesize = 32;
abbd8870 1430 ha->gid_list_info_size = 4;
1da177e4 1431 } else if (IS_QLA2200(ha)) {
354d6b21 1432 host->max_id = MAX_TARGETS_2200;
1da177e4
LT		 1433 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1434 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1435 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1436 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
abbd8870 1437 ha->gid_list_info_size = 4;
fca29703 1438 } else if (IS_QLA23XX(ha)) {
354d6b21 1439 host->max_id = MAX_TARGETS_2200;
1da177e4
LT		 1440 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1441 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1442 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1443 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
abbd8870
AV		 1444 ha->isp_ops.pci_config = qla2300_pci_config;
1445 ha->isp_ops.intr_handler = qla2300_intr_handler;
1446 ha->isp_ops.fw_dump = qla2300_fw_dump;
f6df144c
AV		 1447 ha->isp_ops.beacon_on = qla2x00_beacon_on;
1448 ha->isp_ops.beacon_off = qla2x00_beacon_off;
1449 ha->isp_ops.beacon_blink = qla2x00_beacon_blink;
abbd8870 1450 ha->gid_list_info_size = 6;
854165f4
AV		 1451 if (IS_QLA2322(ha) || IS_QLA6322(ha))
1452 ha->optrom_size = OPTROM_SIZE_2322;
044cc6c8 1453 } else if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
fca29703
AV		 1454 host->max_id = MAX_TARGETS_2200;
1455 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1456 ha->request_q_length = REQUEST_ENTRY_CNT_24XX;
1457 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1458 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1459 ha->init_cb_size = sizeof(struct init_cb_24xx);
cca5335c 1460 ha->mgmt_svr_loop_id = 10;
fca29703
AV		 1461 ha->isp_ops.pci_config = qla24xx_pci_config;
1462 ha->isp_ops.reset_chip = qla24xx_reset_chip;
1463 ha->isp_ops.chip_diag = qla24xx_chip_diag;
1464 ha->isp_ops.config_rings = qla24xx_config_rings;
1465 ha->isp_ops.reset_adapter = qla24xx_reset_adapter;
1466 ha->isp_ops.nvram_config = qla24xx_nvram_config;
1467 ha->isp_ops.update_fw_options = qla24xx_update_fw_options;
5433383e 1468 ha->isp_ops.load_risc = qla24xx_load_risc;
fca29703
AV		 1469 ha->isp_ops.pci_info_str = qla24xx_pci_info_str;
1470 ha->isp_ops.fw_version_str = qla24xx_fw_version_str;
1471 ha->isp_ops.intr_handler = qla24xx_intr_handler;
1472 ha->isp_ops.enable_intrs = qla24xx_enable_intrs;
1473 ha->isp_ops.disable_intrs = qla24xx_disable_intrs;
1474 ha->isp_ops.abort_command = qla24xx_abort_command;
1475 ha->isp_ops.abort_target = qla24xx_abort_target;
1476 ha->isp_ops.fabric_login = qla24xx_login_fabric;
1477 ha->isp_ops.fabric_logout = qla24xx_fabric_logout;
1478 ha->isp_ops.prep_ms_iocb = qla24xx_prep_ms_iocb;
cca5335c 1479 ha->isp_ops.prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb;
fca29703
AV		 1480 ha->isp_ops.read_nvram = qla24xx_read_nvram_data;
1481 ha->isp_ops.write_nvram = qla24xx_write_nvram_data;
1482 ha->isp_ops.fw_dump = qla24xx_fw_dump;
854165f4
AV		 1483 ha->isp_ops.read_optrom = qla24xx_read_optrom_data;
1484 ha->isp_ops.write_optrom = qla24xx_write_optrom_data;
f6df144c
AV		 1485 ha->isp_ops.beacon_on = qla24xx_beacon_on;
1486 ha->isp_ops.beacon_off = qla24xx_beacon_off;
1487 ha->isp_ops.beacon_blink = qla24xx_beacon_blink;
fca29703 1488 ha->gid_list_info_size = 8;
854165f4 1489 ha->optrom_size = OPTROM_SIZE_24XX;
1da177e4
LT		 1490 }
1491 host->can_queue = ha->request_q_length + 128;
1492
1493 /* load the F/W, read paramaters, and init the H/W */
1494 ha->instance = num_hosts;
1495
1496 init_MUTEX(&ha->mbx_cmd_sem);
1497 init_MUTEX_LOCKED(&ha->mbx_intr_sem);
1498
1499 INIT_LIST_HEAD(&ha->list);
1500 INIT_LIST_HEAD(&ha->fcports);
1da177e4
LT		 1501
1502 /*
1503 * These locks are used to prevent more than one CPU
1504 * from modifying the queue at the same time. The
1505 * higher level "host_lock" will reduce most
1506 * contention for these locks.
1507 */
1508 spin_lock_init(&ha->mbx_reg_lock);
1da177e4 1509
1da177e4
LT		 1510 qla2x00_config_dma_addressing(ha);
1511 if (qla2x00_mem_alloc(ha)) {
1512 qla_printk(KERN_WARNING, ha,
1513 "[ERROR] Failed to allocate memory for adapter\n");
1514
a1541d5a
AV		 1515 ret = -ENOMEM;
1516 goto probe_failed;
1da177e4
LT		 1517 }
1518
1519 if (qla2x00_initialize_adapter(ha) &&
1520 !(ha->device_flags & DFLG_NO_CABLE)) {
1521
1522 qla_printk(KERN_WARNING, ha,
1523 "Failed to initialize adapter\n");
1524
1525 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
1526 "Adapter flags %x.\n",
1527 ha->host_no, ha->device_flags));
1528
a1541d5a 1529 ret = -ENODEV;
1da177e4
LT		 1530 goto probe_failed;
1531 }
1532
1533 /*
1534 * Startup the kernel thread for this host adapter
1535 */
39a11240
CH		 1536 ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
1537 "%s_dpc", ha->host_str);
1538 if (IS_ERR(ha->dpc_thread)) {
1da177e4
LT		 1539 qla_printk(KERN_WARNING, ha,
1540 "Unable to start DPC thread!\n");
39a11240 1541 ret = PTR_ERR(ha->dpc_thread);
1da177e4
LT		 1542 goto probe_failed;
1543 }
1da177e4 1544
a1541d5a
AV		 1545 host->this_id = 255;
1546 host->cmd_per_lun = 3;
1547 host->unique_id = ha->instance;
1548 host->max_cmd_len = MAX_CMDSZ;
75bc4190 1549 host->max_channel = MAX_BUSES - 1;
a1541d5a
AV		 1550 host->max_lun = MAX_LUNS;
1551 host->transportt = qla2xxx_transport_template;
1552
fca29703 1553 ret = request_irq(pdev->irq, ha->isp_ops.intr_handler,
cb63067a 1554 SA_INTERRUPT|SA_SHIRQ, QLA2XXX_DRIVER_NAME, ha);
a1541d5a 1555 if (ret) {
1da177e4
LT		 1556 qla_printk(KERN_WARNING, ha,
1557 "Failed to reserve interrupt %d already in use.\n",
fca29703 1558 pdev->irq);
1da177e4
LT		 1559 goto probe_failed;
1560 }
fca29703 1561 host->irq = pdev->irq;
1da177e4
LT		 1562
1563 /* Initialized the timer */
1564 qla2x00_start_timer(ha, qla2x00_timer, WATCH_INTERVAL);
1565
1566 DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
1567 ha->host_no, ha));
1568
abbd8870 1569 ha->isp_ops.disable_intrs(ha);
1da177e4 1570
1da177e4 1571 spin_lock_irqsave(&ha->hardware_lock, flags);
fca29703 1572 reg = ha->iobase;
044cc6c8 1573 if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
fca29703
AV		 1574 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_HOST_INT);
1575 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_RISC_INT);
1576 } else {
1577 WRT_REG_WORD(&reg->isp.semaphore, 0);
1578 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_RISC_INT);
1579 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_HOST_INT);
1580
1581 /* Enable proper parity */
1582 if (!IS_QLA2100(ha) && !IS_QLA2200(ha)) {
1583 if (IS_QLA2300(ha))
1584 /* SRAM parity */
1585 WRT_REG_WORD(&reg->isp.hccr,
1586 (HCCR_ENABLE_PARITY + 0x1));
1587 else
1588 /* SRAM, Instruction RAM and GP RAM parity */
1589 WRT_REG_WORD(&reg->isp.hccr,
1590 (HCCR_ENABLE_PARITY + 0x7));
1591 }
1da177e4
LT		 1592 }
1593 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1594
abbd8870 1595 ha->isp_ops.enable_intrs(ha);
1da177e4
LT		 1596
1597 /* v2.19.5b6 */
1598 /*
1599 * Wait around max loop_reset_delay secs for the devices to come
1600 * on-line. We don't want Linux scanning before we are ready.
1601 *
1602 */
1603 for (wait_switch = jiffies + (ha->loop_reset_delay * HZ);
1604 time_before(jiffies,wait_switch) &&
1605 !(ha->device_flags & (DFLG_NO_CABLE | DFLG_FABRIC_DEVICES))
1606 && (ha->device_flags & SWITCH_FOUND) ;) {
1607
1608 qla2x00_check_fabric_devices(ha);
1609
1610 msleep(10);
1611 }
1612
a1541d5a 1613 pci_set_drvdata(pdev, ha);
1da177e4
LT		 1614 ha->flags.init_done = 1;
1615 num_hosts++;
1616
a1541d5a
AV		 1617 ret = scsi_add_host(host, &pdev->dev);
1618 if (ret)
1619 goto probe_failed;
1620
1621 qla2x00_alloc_sysfs_attr(ha);
1622
1623 qla2x00_init_host_attr(ha);
1624
1da177e4
LT		 1625 qla_printk(KERN_INFO, ha, "\n"
1626 " QLogic Fibre Channel HBA Driver: %s\n"
1627 " QLogic %s - %s\n"
5433383e
AV		 1628 " ISP%04X: %s @ %s hdma%c, host#=%ld, fw=%s\n",
1629 qla2x00_version_str, ha->model_number,
1630 ha->model_desc ? ha->model_desc: "", pdev->device,
1631 ha->isp_ops.pci_info_str(ha, pci_info), pci_name(pdev),
1632 ha->flags.enable_64bit_addressing ? '+': '-', ha->host_no,
1633 ha->isp_ops.fw_version_str(ha, fw_str));
1da177e4 1634
8482e118
AV		 1635 /* Go with fc_rport registration. */
1636 list_for_each_entry(fcport, &ha->fcports, list)
1637 qla2x00_reg_remote_port(ha, fcport);
1da177e4
LT		 1638
1639 return 0;
1640
1641probe_failed:
1642 qla2x00_free_device(ha);
1643
1644 scsi_host_put(host);
1645
1646probe_disable_device:
1647 pci_disable_device(pdev);
1648
a1541d5a
AV		 1649probe_out:
1650 return ret;
1da177e4 1651}
1da177e4 1652
441d1072 1653static void qla2x00_remove_one(struct pci_dev *pdev)
1da177e4
LT		 1654{
1655 scsi_qla_host_t *ha;
1656
1657 ha = pci_get_drvdata(pdev);
1658
8482e118 1659 qla2x00_free_sysfs_attr(ha);
1da177e4 1660
bdf79621
AV		 1661 fc_remove_host(ha->host);
1662
1da177e4
LT		 1663 scsi_remove_host(ha->host);
1664
1665 qla2x00_free_device(ha);
1666
1667 scsi_host_put(ha->host);
1668
1669 pci_set_drvdata(pdev, NULL);
1670}
1da177e4
LT		 1671
1672static void
1673qla2x00_free_device(scsi_qla_host_t *ha)
1674{
1da177e4
LT		 1675 /* Disable timer */
1676 if (ha->timer_active)
1677 qla2x00_stop_timer(ha);
1678
1679 /* Kill the kernel thread for this host */
39a11240
CH		 1680 if (ha->dpc_thread) {
1681 struct task_struct *t = ha->dpc_thread;
1da177e4 1682
39a11240
CH		 1683 /*
1684 * qla2xxx_wake_dpc checks for ->dpc_thread
1685 * so we need to zero it out.
1686 */
1687 ha->dpc_thread = NULL;
1688 kthread_stop(t);
1da177e4
LT		 1689 }
1690
a7a167bf
AV		 1691 if (ha->eft)
1692 qla2x00_trace_control(ha, TC_DISABLE, 0, 0);
1693
f6ef3b18
AV		 1694 /* Stop currently executing firmware. */
1695 qla2x00_stop_firmware(ha);
1da177e4 1696
f6ef3b18
AV		 1697 /* turn-off interrupts on the card */
1698 if (ha->interrupts_on)
1699 ha->isp_ops.disable_intrs(ha);
1700
1701 qla2x00_mem_free(ha);
1da177e4
LT		 1702
1703 ha->flags.online = 0;
1704
1705 /* Detach interrupts */
77347ff7
ZB		 1706 if (ha->host->irq)
1707 free_irq(ha->host->irq, ha);
1da177e4
LT		 1708
1709 /* release io space registers */
1710 if (ha->iobase)
1711 iounmap(ha->iobase);
1712 pci_release_regions(ha->pdev);
1713
1714 pci_disable_device(ha->pdev);
1715}
1716
d97994dc
AV		 1717static inline void
1718qla2x00_schedule_rport_del(struct scsi_qla_host *ha, fc_port_t *fcport,
1719 int defer)
1720{
1721 unsigned long flags;
1722 struct fc_rport *rport;
1723
1724 if (!fcport->rport)
1725 return;
1726
1727 rport = fcport->rport;
1728 if (defer) {
1729 spin_lock_irqsave(&fcport->rport_lock, flags);
1730 fcport->drport = rport;
1731 fcport->rport = NULL;
387f96b4 1732 *(fc_port_t **)rport->dd_data = NULL;
d97994dc
AV		 1733 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1734 set_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags);
1735 } else {
1736 spin_lock_irqsave(&fcport->rport_lock, flags);
1737 fcport->rport = NULL;
387f96b4 1738 *(fc_port_t **)rport->dd_data = NULL;
d97994dc
AV		 1739 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1740 fc_remote_port_delete(rport);
1741 }
1742}
1743
1da177e4
LT		 1744/*
1745 * qla2x00_mark_device_lost Updates fcport state when device goes offline.
1746 *
1747 * Input: ha = adapter block pointer. fcport = port structure pointer.
1748 *
1749 * Return: None.
1750 *
1751 * Context:
1752 */
1753void qla2x00_mark_device_lost(scsi_qla_host_t *ha, fc_port_t *fcport,
d97994dc 1754 int do_login, int defer)
1da177e4 1755{
d97994dc
AV		 1756 if (atomic_read(&fcport->state) == FCS_ONLINE)
1757 qla2x00_schedule_rport_del(ha, fcport, defer);
19a7b4ae 1758
fa2a1ce5 1759 /*
1da177e4
LT		 1760 * We may need to retry the login, so don't change the state of the
1761 * port but do the retries.
1762 */
1763 if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
1764 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1765
1766 if (!do_login)
1767 return;
1768
1769 if (fcport->login_retry == 0) {
1770 fcport->login_retry = ha->login_retry_count;
1771 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
1772
1773 DEBUG(printk("scsi(%ld): Port login retry: "
1774 "%02x%02x%02x%02x%02x%02x%02x%02x, "
1775 "id = 0x%04x retry cnt=%d\n",
1776 ha->host_no,
1777 fcport->port_name[0],
1778 fcport->port_name[1],
1779 fcport->port_name[2],
1780 fcport->port_name[3],
1781 fcport->port_name[4],
1782 fcport->port_name[5],
1783 fcport->port_name[6],
1784 fcport->port_name[7],
1785 fcport->loop_id,
1786 fcport->login_retry));
1787 }
1788}
1789
1790/*
1791 * qla2x00_mark_all_devices_lost
1792 * Updates fcport state when device goes offline.
1793 *
1794 * Input:
1795 * ha = adapter block pointer.
1796 * fcport = port structure pointer.
1797 *
1798 * Return:
1799 * None.
1800 *
1801 * Context:
1802 */
1803void
d97994dc 1804qla2x00_mark_all_devices_lost(scsi_qla_host_t *ha, int defer)
1da177e4
LT		 1805{
1806 fc_port_t *fcport;
1807
1808 list_for_each_entry(fcport, &ha->fcports, list) {
1809 if (fcport->port_type != FCT_TARGET)
1810 continue;
1811
1812 /*
1813 * No point in marking the device as lost, if the device is
1814 * already DEAD.
1815 */
1816 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
1817 continue;
d97994dc
AV		 1818 if (atomic_read(&fcport->state) == FCS_ONLINE)
1819 qla2x00_schedule_rport_del(ha, fcport, defer);
1da177e4
LT		 1820 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1821 }
d97994dc 1822
39a11240
CH		 1823 if (defer)
1824 qla2xxx_wake_dpc(ha);
1da177e4
LT		 1825}
1826
1827/*
1828* qla2x00_mem_alloc
1829* Allocates adapter memory.
1830*
1831* Returns:
1832* 0 = success.
1833* 1 = failure.
1834*/
1835static uint8_t
1836qla2x00_mem_alloc(scsi_qla_host_t *ha)
1837{
1838 char name[16];
1839 uint8_t status = 1;
1840 int retry= 10;
1841
1842 do {
1843 /*
1844 * This will loop only once if everything goes well, else some
1845 * number of retries will be performed to get around a kernel
1846 * bug where available mem is not allocated until after a
1847 * little delay and a retry.
1848 */
1849 ha->request_ring = dma_alloc_coherent(&ha->pdev->dev,
1850 (ha->request_q_length + 1) * sizeof(request_t),
1851 &ha->request_dma, GFP_KERNEL);
1852 if (ha->request_ring == NULL) {
1853 qla_printk(KERN_WARNING, ha,
1854 "Memory Allocation failed - request_ring\n");
1855
1856 qla2x00_mem_free(ha);
1857 msleep(100);
1858
1859 continue;
1860 }
1861
1862 ha->response_ring = dma_alloc_coherent(&ha->pdev->dev,
1863 (ha->response_q_length + 1) * sizeof(response_t),
1864 &ha->response_dma, GFP_KERNEL);
1865 if (ha->response_ring == NULL) {
1866 qla_printk(KERN_WARNING, ha,
1867 "Memory Allocation failed - response_ring\n");
1868
1869 qla2x00_mem_free(ha);
1870 msleep(100);
1871
1872 continue;
1873 }
1874
1875 ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
1876 &ha->gid_list_dma, GFP_KERNEL);
1877 if (ha->gid_list == NULL) {
1878 qla_printk(KERN_WARNING, ha,
1879 "Memory Allocation failed - gid_list\n");
1880
1881 qla2x00_mem_free(ha);
1882 msleep(100);
1883
1884 continue;
1885 }
1886
cb63067a
AV		 1887 snprintf(name, sizeof(name), "%s_%ld", QLA2XXX_DRIVER_NAME,
1888 ha->host_no);
1da177e4
LT		 1889 ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
1890 DMA_POOL_SIZE, 8, 0);
1891 if (ha->s_dma_pool == NULL) {
1892 qla_printk(KERN_WARNING, ha,
1893 "Memory Allocation failed - s_dma_pool\n");
1894
1895 qla2x00_mem_free(ha);
1896 msleep(100);
1897
1898 continue;
1899 }
1900
1901 /* get consistent memory allocated for init control block */
1902 ha->init_cb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
1903 &ha->init_cb_dma);
1904 if (ha->init_cb == NULL) {
1905 qla_printk(KERN_WARNING, ha,
1906 "Memory Allocation failed - init_cb\n");
1907
1908 qla2x00_mem_free(ha);
1909 msleep(100);
1910
1911 continue;
1912 }
fca29703 1913 memset(ha->init_cb, 0, ha->init_cb_size);
1da177e4 1914
1da177e4
LT		 1915 if (qla2x00_allocate_sp_pool(ha)) {
1916 qla_printk(KERN_WARNING, ha,
1917 "Memory Allocation failed - "
1918 "qla2x00_allocate_sp_pool()\n");
1919
1920 qla2x00_mem_free(ha);
1921 msleep(100);
1922
1923 continue;
1924 }
1925
1926 /* Allocate memory for SNS commands */
1927 if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
1928 /* Get consistent memory allocated for SNS commands */
1929 ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
1930 sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma,
1931 GFP_KERNEL);
1932 if (ha->sns_cmd == NULL) {
1933 /* error */
1934 qla_printk(KERN_WARNING, ha,
1935 "Memory Allocation failed - sns_cmd\n");
1936
1937 qla2x00_mem_free(ha);
1938 msleep(100);
1939
1940 continue;
1941 }
1942 memset(ha->sns_cmd, 0, sizeof(struct sns_cmd_pkt));
1943 } else {
1944 /* Get consistent memory allocated for MS IOCB */
1945 ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
1946 &ha->ms_iocb_dma);
1947 if (ha->ms_iocb == NULL) {
1948 /* error */
1949 qla_printk(KERN_WARNING, ha,
1950 "Memory Allocation failed - ms_iocb\n");
1951
1952 qla2x00_mem_free(ha);
1953 msleep(100);
1954
1955 continue;
1956 }
1957 memset(ha->ms_iocb, 0, sizeof(ms_iocb_entry_t));
1958
1959 /*
1960 * Get consistent memory allocated for CT SNS
1961 * commands
1962 */
1963 ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
1964 sizeof(struct ct_sns_pkt), &ha->ct_sns_dma,
1965 GFP_KERNEL);
1966 if (ha->ct_sns == NULL) {
1967 /* error */
1968 qla_printk(KERN_WARNING, ha,
1969 "Memory Allocation failed - ct_sns\n");
1970
1971 qla2x00_mem_free(ha);
1972 msleep(100);
1973
1974 continue;
1975 }
1976 memset(ha->ct_sns, 0, sizeof(struct ct_sns_pkt));
88729e53
AV		 1977
1978 if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
1979 /*
1980 * Get consistent memory allocated for SFP
1981 * block.
1982 */
1983 ha->sfp_data = dma_pool_alloc(ha->s_dma_pool,
1984 GFP_KERNEL, &ha->sfp_data_dma);
1985 if (ha->sfp_data == NULL) {
1986 qla_printk(KERN_WARNING, ha,
1987 "Memory Allocation failed - "
1988 "sfp_data\n");
1989
1990 qla2x00_mem_free(ha);
1991 msleep(100);
1992
1993 continue;
1994 }
1995 memset(ha->sfp_data, 0, SFP_BLOCK_SIZE);
1996 }
1da177e4
LT		 1997 }
1998
1999 /* Done all allocations without any error. */
2000 status = 0;
2001
2002 } while (retry-- && status != 0);
2003
2004 if (status) {
2005 printk(KERN_WARNING
2006 "%s(): **** FAILED ****\n", __func__);
2007 }
2008
2009 return(status);
2010}
2011
2012/*
2013* qla2x00_mem_free
2014* Frees all adapter allocated memory.
2015*
2016* Input:
2017* ha = adapter block pointer.
2018*/
2019static void
2020qla2x00_mem_free(scsi_qla_host_t *ha)
2021{
1da177e4
LT		 2022 struct list_head *fcpl, *fcptemp;
2023 fc_port_t *fcport;
1da177e4
LT		 2024
2025 if (ha == NULL) {
2026 /* error */
2027 DEBUG2(printk("%s(): ERROR invalid ha pointer.\n", __func__));
2028 return;
2029 }
2030
1da177e4
LT		 2031 /* free sp pool */
2032 qla2x00_free_sp_pool(ha);
2033
a7a167bf
AV		 2034 if (ha->fw_dump) {
2035 if (ha->eft)
2036 dma_free_coherent(&ha->pdev->dev,
2037 ntohl(ha->fw_dump->eft_size), ha->eft, ha->eft_dma);
2038 vfree(ha->fw_dump);
2039 }
2040
1da177e4
LT		 2041 if (ha->sns_cmd)
2042 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
2043 ha->sns_cmd, ha->sns_cmd_dma);
2044
2045 if (ha->ct_sns)
2046 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2047 ha->ct_sns, ha->ct_sns_dma);
2048
88729e53
AV		 2049 if (ha->sfp_data)
2050 dma_pool_free(ha->s_dma_pool, ha->sfp_data, ha->sfp_data_dma);
2051
1da177e4
LT		 2052 if (ha->ms_iocb)
2053 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2054
1da177e4
LT		 2055 if (ha->init_cb)
2056 dma_pool_free(ha->s_dma_pool, ha->init_cb, ha->init_cb_dma);
2057
2058 if (ha->s_dma_pool)
2059 dma_pool_destroy(ha->s_dma_pool);
2060
1da177e4
LT		 2061 if (ha->gid_list)
2062 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2063 ha->gid_list_dma);
2064
2065 if (ha->response_ring)
2066 dma_free_coherent(&ha->pdev->dev,
2067 (ha->response_q_length + 1) * sizeof(response_t),
2068 ha->response_ring, ha->response_dma);
2069
2070 if (ha->request_ring)
2071 dma_free_coherent(&ha->pdev->dev,
2072 (ha->request_q_length + 1) * sizeof(request_t),
2073 ha->request_ring, ha->request_dma);
2074
a7a167bf
AV		 2075 ha->eft = NULL;
2076 ha->eft_dma = 0;
1da177e4
LT		 2077 ha->sns_cmd = NULL;
2078 ha->sns_cmd_dma = 0;
2079 ha->ct_sns = NULL;
2080 ha->ct_sns_dma = 0;
2081 ha->ms_iocb = NULL;
2082 ha->ms_iocb_dma = 0;
1da177e4
LT		 2083 ha->init_cb = NULL;
2084 ha->init_cb_dma = 0;
2085
2086 ha->s_dma_pool = NULL;
2087
1da177e4
LT		 2088 ha->gid_list = NULL;
2089 ha->gid_list_dma = 0;
2090
2091 ha->response_ring = NULL;
2092 ha->response_dma = 0;
2093 ha->request_ring = NULL;
2094 ha->request_dma = 0;
2095
2096 list_for_each_safe(fcpl, fcptemp, &ha->fcports) {
2097 fcport = list_entry(fcpl, fc_port_t, list);
2098
1da177e4
LT		 2099 /* fc ports */
2100 list_del_init(&fcport->list);
2101 kfree(fcport);
2102 }
2103 INIT_LIST_HEAD(&ha->fcports);
2104
1da177e4 2105 ha->fw_dump = NULL;
fca29703 2106 ha->fw_dumped = 0;
1da177e4 2107 ha->fw_dump_reading = 0;
854165f4
AV		 2108
2109 vfree(ha->optrom_buffer);
1da177e4
LT		 2110}
2111
2112/*
2113 * qla2x00_allocate_sp_pool
2114 * This routine is called during initialization to allocate
2115 * memory for local srb_t.
2116 *
2117 * Input:
2118 * ha = adapter block pointer.
2119 *
2120 * Context:
2121 * Kernel context.
1da177e4
LT		 2122 */
2123static int
fa2a1ce5 2124qla2x00_allocate_sp_pool(scsi_qla_host_t *ha)
1da177e4
LT		 2125{
2126 int rval;
2127
2128 rval = QLA_SUCCESS;
93d2341c 2129 ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
1da177e4
LT		 2130 if (ha->srb_mempool == NULL) {
2131 qla_printk(KERN_INFO, ha, "Unable to allocate SRB mempool.\n");
2132 rval = QLA_FUNCTION_FAILED;
2133 }
2134 return (rval);
2135}
2136
2137/*
2138 * This routine frees all adapter allocated memory.
fa2a1ce5 2139 *
1da177e4
LT		 2140 */
2141static void
fa2a1ce5 2142qla2x00_free_sp_pool( scsi_qla_host_t *ha)
1da177e4
LT		 2143{
2144 if (ha->srb_mempool) {
2145 mempool_destroy(ha->srb_mempool);
2146 ha->srb_mempool = NULL;
2147 }
2148}
2149
2150/**************************************************************************
2151* qla2x00_do_dpc
2152* This kernel thread is a task that is schedule by the interrupt handler
2153* to perform the background processing for interrupts.
2154*
2155* Notes:
2156* This task always run in the context of a kernel thread. It
2157* is kick-off by the driver's detect code and starts up
2158* up one per adapter. It immediately goes to sleep and waits for
2159* some fibre event. When either the interrupt handler or
2160* the timer routine detects a event it will one of the task
2161* bits then wake us up.
2162**************************************************************************/
2163static int
2164qla2x00_do_dpc(void *data)
2165{
1da177e4
LT		 2166 scsi_qla_host_t *ha;
2167 fc_port_t *fcport;
1da177e4 2168 uint8_t status;
1da177e4 2169 uint16_t next_loopid;
1da177e4
LT		 2170
2171 ha = (scsi_qla_host_t *)data;
2172
1da177e4
LT		 2173 set_user_nice(current, -20);
2174
39a11240 2175 while (!kthread_should_stop()) {
1da177e4
LT		 2176 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
2177
39a11240
CH		 2178 set_current_state(TASK_INTERRUPTIBLE);
2179 schedule();
2180 __set_current_state(TASK_RUNNING);
1da177e4
LT		 2181
2182 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
2183
2184 /* Initialization not yet finished. Don't do anything yet. */
39a11240 2185 if (!ha->flags.init_done)
1da177e4
LT		 2186 continue;
2187
2188 DEBUG3(printk("scsi(%ld): DPC handler\n", ha->host_no));
2189
2190 ha->dpc_active = 1;
2191
1da177e4 2192 if (ha->flags.mbox_busy) {
1da177e4
LT		 2193 ha->dpc_active = 0;
2194 continue;
2195 }
2196
2197 if (test_and_clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) {
2198
2199 DEBUG(printk("scsi(%ld): dpc: sched "
2200 "qla2x00_abort_isp ha = %p\n",
2201 ha->host_no, ha));
2202 if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
2203 &ha->dpc_flags))) {
2204
2205 if (qla2x00_abort_isp(ha)) {
2206 /* failed. retry later */
2207 set_bit(ISP_ABORT_NEEDED,
2208 &ha->dpc_flags);
2209 }
2210 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2211 }
2212 DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
2213 ha->host_no));
2214 }
2215
d97994dc
AV		 2216 if (test_and_clear_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags))
2217 qla2x00_update_fcports(ha);
2218
91ca7b01
AV		 2219 if (test_and_clear_bit(LOOP_RESET_NEEDED, &ha->dpc_flags)) {
2220 DEBUG(printk("scsi(%ld): dpc: sched loop_reset()\n",
2221 ha->host_no));
2222 qla2x00_loop_reset(ha);
2223 }
2224
1da177e4
LT		 2225 if (test_and_clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) &&
2226 (!(test_and_set_bit(RESET_ACTIVE, &ha->dpc_flags)))) {
2227
2228 DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
2229 ha->host_no));
2230
2231 qla2x00_rst_aen(ha);
2232 clear_bit(RESET_ACTIVE, &ha->dpc_flags);
2233 }
2234
2235 /* Retry each device up to login retry count */
2236 if ((test_and_clear_bit(RELOGIN_NEEDED, &ha->dpc_flags)) &&
2237 !test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) &&
2238 atomic_read(&ha->loop_state) != LOOP_DOWN) {
2239
2240 DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
2241 ha->host_no));
2242
2243 next_loopid = 0;
2244 list_for_each_entry(fcport, &ha->fcports, list) {
2245 if (fcport->port_type != FCT_TARGET)
2246 continue;
2247
2248 /*
2249 * If the port is not ONLINE then try to login
2250 * to it if we haven't run out of retries.
2251 */
2252 if (atomic_read(&fcport->state) != FCS_ONLINE &&
2253 fcport->login_retry) {
2254
2255 fcport->login_retry--;
2256 if (fcport->flags & FCF_FABRIC_DEVICE) {
2257 if (fcport->flags &
2258 FCF_TAPE_PRESENT)
abbd8870 2259 ha->isp_ops.fabric_logout(
1c7c6357
AV		 2260 ha, fcport->loop_id,
2261 fcport->d_id.b.domain,
2262 fcport->d_id.b.area,
2263 fcport->d_id.b.al_pa);
1da177e4
LT		 2264 status = qla2x00_fabric_login(
2265 ha, fcport, &next_loopid);
2266 } else
2267 status =
2268 qla2x00_local_device_login(
9a52a57c 2269 ha, fcport);
1da177e4
LT		 2270
2271 if (status == QLA_SUCCESS) {
2272 fcport->old_loop_id = fcport->loop_id;
2273
2274 DEBUG(printk("scsi(%ld): port login OK: logged in ID 0x%x\n",
2275 ha->host_no, fcport->loop_id));
fa2a1ce5 2276
052c40c8
AV		 2277 qla2x00_update_fcport(ha,
2278 fcport);
1da177e4
LT		 2279 } else if (status == 1) {
2280 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
2281 /* retry the login again */
2282 DEBUG(printk("scsi(%ld): Retrying %d login again loop_id 0x%x\n",
2283 ha->host_no,
2284 fcport->login_retry, fcport->loop_id));
2285 } else {
2286 fcport->login_retry = 0;
2287 }
2288 }
2289 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2290 break;
2291 }
2292 DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
2293 ha->host_no));
2294 }
2295
2296 if ((test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags)) &&
2297 atomic_read(&ha->loop_state) != LOOP_DOWN) {
2298
2299 clear_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags);
2300 DEBUG(printk("scsi(%ld): qla2x00_login_retry()\n",
2301 ha->host_no));
fa2a1ce5 2302
1da177e4
LT		 2303 set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
2304
2305 DEBUG(printk("scsi(%ld): qla2x00_login_retry - end\n",
2306 ha->host_no));
2307 }
2308
2309 if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
2310
2311 DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
2312 ha->host_no));
2313
2314 if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
2315 &ha->dpc_flags))) {
2316
2317 qla2x00_loop_resync(ha);
2318
2319 clear_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags);
2320 }
2321
2322 DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
2323 ha->host_no));
2324 }
2325
1da177e4
LT		 2326 if (test_and_clear_bit(FCPORT_RESCAN_NEEDED, &ha->dpc_flags)) {
2327
2328 DEBUG(printk("scsi(%ld): Rescan flagged fcports...\n",
2329 ha->host_no));
2330
2331 qla2x00_rescan_fcports(ha);
2332
2333 DEBUG(printk("scsi(%ld): Rescan flagged fcports..."
2334 "end.\n",
2335 ha->host_no));
2336 }
2337
1da177e4 2338 if (!ha->interrupts_on)
abbd8870 2339 ha->isp_ops.enable_intrs(ha);
1da177e4 2340
f6df144c
AV		 2341 if (test_and_clear_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags))
2342 ha->isp_ops.beacon_blink(ha);
2343
1da177e4
LT		 2344 ha->dpc_active = 0;
2345 } /* End of while(1) */
2346
2347 DEBUG(printk("scsi(%ld): DPC handler exiting\n", ha->host_no));
2348
2349 /*
2350 * Make sure that nobody tries to wake us up again.
2351 */
1da177e4
LT		 2352 ha->dpc_active = 0;
2353
39a11240
CH		 2354 return 0;
2355}
2356
2357void
2358qla2xxx_wake_dpc(scsi_qla_host_t *ha)
2359{
2360 if (ha->dpc_thread)
2361 wake_up_process(ha->dpc_thread);
1da177e4
LT		 2362}
2363
1da177e4
LT		 2364/*
2365* qla2x00_rst_aen
2366* Processes asynchronous reset.
2367*
2368* Input:
2369* ha = adapter block pointer.
2370*/
2371static void
fa2a1ce5 2372qla2x00_rst_aen(scsi_qla_host_t *ha)
1da177e4
LT		 2373{
2374 if (ha->flags.online && !ha->flags.reset_active &&
2375 !atomic_read(&ha->loop_down_timer) &&
2376 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) {
2377 do {
2378 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
2379
2380 /*
2381 * Issue marker command only when we are going to start
2382 * the I/O.
2383 */
2384 ha->marker_needed = 1;
2385 } while (!atomic_read(&ha->loop_down_timer) &&
2386 (test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags)));
2387 }
2388}
2389
f4f051eb
AV		 2390static void
2391qla2x00_sp_free_dma(scsi_qla_host_t *ha, srb_t *sp)
2392{
2393 struct scsi_cmnd *cmd = sp->cmd;
2394
2395 if (sp->flags & SRB_DMA_VALID) {
2396 if (cmd->use_sg) {
2397 dma_unmap_sg(&ha->pdev->dev, cmd->request_buffer,
2398 cmd->use_sg, cmd->sc_data_direction);
2399 } else if (cmd->request_bufflen) {
2400 dma_unmap_single(&ha->pdev->dev, sp->dma_handle,
2401 cmd->request_bufflen, cmd->sc_data_direction);
2402 }
2403 sp->flags &= ~SRB_DMA_VALID;
2404 }
fca29703 2405 CMD_SP(cmd) = NULL;
f4f051eb
AV		 2406}
2407
2408void
2409qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *sp)
2410{
2411 struct scsi_cmnd *cmd = sp->cmd;
2412
2413 qla2x00_sp_free_dma(ha, sp);
2414
f4f051eb
AV		 2415 mempool_free(sp, ha->srb_mempool);
2416
2417 cmd->scsi_done(cmd);
2418}
bdf79621 2419
1da177e4
LT		 2420/**************************************************************************
2421* qla2x00_timer
2422*
2423* Description:
2424* One second timer
2425*
2426* Context: Interrupt
2427***************************************************************************/
2428static void
2429qla2x00_timer(scsi_qla_host_t *ha)
2430{
1da177e4
LT		 2431 unsigned long cpu_flags = 0;
2432 fc_port_t *fcport;
1da177e4
LT		 2433 int start_dpc = 0;
2434 int index;
2435 srb_t *sp;
f4f051eb 2436 int t;
1da177e4
LT		 2437
2438 /*
2439 * Ports - Port down timer.
2440 *
2441 * Whenever, a port is in the LOST state we start decrementing its port
2442 * down timer every second until it reaches zero. Once it reaches zero
fa2a1ce5 2443 * the port it marked DEAD.
1da177e4
LT		 2444 */
2445 t = 0;
2446 list_for_each_entry(fcport, &ha->fcports, list) {
2447 if (fcport->port_type != FCT_TARGET)
2448 continue;
2449
2450 if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
2451
2452 if (atomic_read(&fcport->port_down_timer) == 0)
2453 continue;
2454
fa2a1ce5 2455 if (atomic_dec_and_test(&fcport->port_down_timer) != 0)
1da177e4 2456 atomic_set(&fcport->state, FCS_DEVICE_DEAD);
fa2a1ce5 2457
1da177e4 2458 DEBUG(printk("scsi(%ld): fcport-%d - port retry count: "
fca29703 2459 "%d remaining\n",
1da177e4
LT		 2460 ha->host_no,
2461 t, atomic_read(&fcport->port_down_timer)));
2462 }
2463 t++;
2464 } /* End of for fcport */
2465
1da177e4
LT		 2466
2467 /* Loop down handler. */
2468 if (atomic_read(&ha->loop_down_timer) > 0 &&
2469 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags)) && ha->flags.online) {
2470
2471 if (atomic_read(&ha->loop_down_timer) ==
2472 ha->loop_down_abort_time) {
2473
2474 DEBUG(printk("scsi(%ld): Loop Down - aborting the "
2475 "queues before time expire\n",
2476 ha->host_no));
2477
2478 if (!IS_QLA2100(ha) && ha->link_down_timeout)
fa2a1ce5 2479 atomic_set(&ha->loop_state, LOOP_DEAD);
1da177e4
LT		 2480
2481 /* Schedule an ISP abort to return any tape commands. */
2482 spin_lock_irqsave(&ha->hardware_lock, cpu_flags);
2483 for (index = 1; index < MAX_OUTSTANDING_COMMANDS;
2484 index++) {
bdf79621
AV		 2485 fc_port_t *sfcp;
2486
1da177e4
LT		 2487 sp = ha->outstanding_cmds[index];
2488 if (!sp)
2489 continue;
bdf79621
AV		 2490 sfcp = sp->fcport;
2491 if (!(sfcp->flags & FCF_TAPE_PRESENT))
1da177e4
LT		 2492 continue;
2493
2494 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2495 break;
2496 }
2497 spin_unlock_irqrestore(&ha->hardware_lock, cpu_flags);
2498
2499 set_bit(ABORT_QUEUES_NEEDED, &ha->dpc_flags);
2500 start_dpc++;
2501 }
2502
2503 /* if the loop has been down for 4 minutes, reinit adapter */
2504 if (atomic_dec_and_test(&ha->loop_down_timer) != 0) {
2505 DEBUG(printk("scsi(%ld): Loop down exceed 4 mins - "
2506 "restarting queues.\n",
2507 ha->host_no));
2508
2509 set_bit(RESTART_QUEUES_NEEDED, &ha->dpc_flags);
2510 start_dpc++;
2511
2512 if (!(ha->device_flags & DFLG_NO_CABLE)) {
2513 DEBUG(printk("scsi(%ld): Loop down - "
2514 "aborting ISP.\n",
2515 ha->host_no));
2516 qla_printk(KERN_WARNING, ha,
2517 "Loop down - aborting ISP.\n");
2518
2519 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2520 }
2521 }
fca29703 2522 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
1da177e4
LT		 2523 ha->host_no,
2524 atomic_read(&ha->loop_down_timer)));
2525 }
2526
f6df144c
AV		 2527 /* Check if beacon LED needs to be blinked */
2528 if (ha->beacon_blink_led == 1) {
2529 set_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags);
2530 start_dpc++;
2531 }
2532
1da177e4
LT		 2533 /* Schedule the DPC routine if needed */
2534 if ((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags) ||
2535 test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) ||
91ca7b01 2536 test_bit(LOOP_RESET_NEEDED, &ha->dpc_flags) ||
d97994dc 2537 test_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags) ||
1da177e4
LT		 2538 start_dpc ||
2539 test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags) ||
f4f051eb 2540 test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) ||
f6df144c 2541 test_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags) ||
39a11240
CH		 2542 test_bit(RELOGIN_NEEDED, &ha->dpc_flags)))
2543 qla2xxx_wake_dpc(ha);
1da177e4
LT		 2544
2545 qla2x00_restart_timer(ha, WATCH_INTERVAL);
2546}
2547
1da177e4
LT		 2548/* XXX(hch): crude hack to emulate a down_timeout() */
2549int
2550qla2x00_down_timeout(struct semaphore *sema, unsigned long timeout)
2551{
fe74c71f
AV		 2552 const unsigned int step = 100; /* msecs */
2553 unsigned int iterations = jiffies_to_msecs(timeout)/100;
1da177e4
LT		 2554
2555 do {
2556 if (!down_trylock(sema))
2557 return 0;
fe74c71f 2558 if (msleep_interruptible(step))
1da177e4 2559 break;
fe74c71f 2560 } while (--iterations >= 0);
1da177e4
LT		 2561
2562 return -ETIMEDOUT;
2563}
2564
5433383e
AV		 2565/* Firmware interface routines. */
2566
48c02fde 2567#define FW_BLOBS 5
5433383e
AV		 2568#define FW_ISP21XX 0
2569#define FW_ISP22XX 1
2570#define FW_ISP2300 2
2571#define FW_ISP2322 3
48c02fde 2572#define FW_ISP24XX 4
5433383e
AV		 2573
2574static DECLARE_MUTEX(qla_fw_lock);
2575
2576static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
2577 { .name = "ql2100_fw.bin", .segs = { 0x1000, 0 }, },
2578 { .name = "ql2200_fw.bin", .segs = { 0x1000, 0 }, },
2579 { .name = "ql2300_fw.bin", .segs = { 0x800, 0 }, },
2580 { .name = "ql2322_fw.bin", .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
5433383e
AV		 2581 { .name = "ql2400_fw.bin", },
2582};
2583
2584struct fw_blob *
2585qla2x00_request_firmware(scsi_qla_host_t *ha)
2586{
2587 struct fw_blob *blob;
2588
2589 blob = NULL;
2590 if (IS_QLA2100(ha)) {
2591 blob = &qla_fw_blobs[FW_ISP21XX];
2592 } else if (IS_QLA2200(ha)) {
2593 blob = &qla_fw_blobs[FW_ISP22XX];
48c02fde 2594 } else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
5433383e 2595 blob = &qla_fw_blobs[FW_ISP2300];
48c02fde 2596 } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
5433383e 2597 blob = &qla_fw_blobs[FW_ISP2322];
044cc6c8 2598 } else if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
5433383e
AV		 2599 blob = &qla_fw_blobs[FW_ISP24XX];
2600 }
2601
2602 down(&qla_fw_lock);
2603 if (blob->fw)
2604 goto out;
2605
2606 if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
2607 DEBUG2(printk("scsi(%ld): Failed to load firmware image "
2608 "(%s).\n", ha->host_no, blob->name));
2609 blob->fw = NULL;
2610 blob = NULL;
2611 goto out;
2612 }
2613
2614out:
2615 up(&qla_fw_lock);
2616 return blob;
2617}
2618
2619static void
2620qla2x00_release_firmware(void)
2621{
2622 int idx;
2623
2624 down(&qla_fw_lock);
2625 for (idx = 0; idx < FW_BLOBS; idx++)
2626 if (qla_fw_blobs[idx].fw)
2627 release_firmware(qla_fw_blobs[idx].fw);
2628 up(&qla_fw_lock);
2629}
2630
5433383e 2631static struct pci_device_id qla2xxx_pci_tbl[] = {
47f5e069
AV		 2632 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
2633 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
2634 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
2635 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
2636 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
2637 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
2638 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
2639 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
2640 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
2641 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
2642 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
5433383e
AV		 2643 { 0 },
2644};
2645MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
2646
2647static int __devinit
2648qla2xxx_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
2649{
441d1072 2650 return qla2x00_probe_one(pdev);
5433383e
AV		 2651}
2652
2653static void __devexit
2654qla2xxx_remove_one(struct pci_dev *pdev)
2655{
2656 qla2x00_remove_one(pdev);
2657}
2658
fca29703 2659static struct pci_driver qla2xxx_pci_driver = {
cb63067a 2660 .name = QLA2XXX_DRIVER_NAME,
0a21ef1e
JB		 2661 .driver = {
2662 .owner = THIS_MODULE,
2663 },
fca29703
AV		 2664 .id_table = qla2xxx_pci_tbl,
2665 .probe = qla2xxx_probe_one,
2666 .remove = __devexit_p(qla2xxx_remove_one),
2667};
2668
331e3476
AV		 2669static inline int
2670qla2x00_pci_module_init(void)
2671{
2672 return pci_module_init(&qla2xxx_pci_driver);
2673}
2674
2675static inline void
2676qla2x00_pci_module_exit(void)
2677{
2678 pci_unregister_driver(&qla2xxx_pci_driver);
2679}
2680
1da177e4
LT		 2681/**
2682 * qla2x00_module_init - Module initialization.
2683 **/
2684static int __init
2685qla2x00_module_init(void)
2686{
fca29703
AV		 2687 int ret = 0;
2688
1da177e4 2689 /* Allocate cache for SRBs. */
354d6b21 2690 srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
1da177e4
LT		 2691 SLAB_HWCACHE_ALIGN, NULL, NULL);
2692 if (srb_cachep == NULL) {
2693 printk(KERN_ERR
2694 "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
2695 return -ENOMEM;
2696 }
2697
2698 /* Derive version string. */
2699 strcpy(qla2x00_version_str, QLA2XXX_VERSION);
0181944f
AV		 2700 if (extended_error_logging)
2701 strcat(qla2x00_version_str, "-debug");
2702
1c97a12a
AV		 2703 qla2xxx_transport_template =
2704 fc_attach_transport(&qla2xxx_transport_functions);
1da177e4
LT		 2705 if (!qla2xxx_transport_template)
2706 return -ENODEV;
2707
2708 printk(KERN_INFO "QLogic Fibre Channel HBA Driver\n");
331e3476 2709 ret = qla2x00_pci_module_init();
fca29703
AV		 2710 if (ret) {
2711 kmem_cache_destroy(srb_cachep);
2712 fc_release_transport(qla2xxx_transport_template);
2713 }
2714 return ret;
1da177e4
LT		 2715}
2716
2717/**
2718 * qla2x00_module_exit - Module cleanup.
2719 **/
2720static void __exit
2721qla2x00_module_exit(void)
2722{
331e3476 2723 qla2x00_pci_module_exit();
5433383e 2724 qla2x00_release_firmware();
354d6b21 2725 kmem_cache_destroy(srb_cachep);
1da177e4
LT		 2726 fc_release_transport(qla2xxx_transport_template);
2727}
2728
2729module_init(qla2x00_module_init);
2730module_exit(qla2x00_module_exit);
2731
2732MODULE_AUTHOR("QLogic Corporation");
2733MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
2734MODULE_LICENSE("GPL");
2735MODULE_VERSION(QLA2XXX_VERSION);
kernel source for telekom puls (alcatel/mediatek)