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[SCSI] add 6.0 Gbit phy definitions to the sas transport class
[linux-2.6-block.git] / drivers / scsi / qla2xxx / qla_os.c
CommitLineData
1da177e4 1/*
fa90c54f
AV		 2 * QLogic Fibre Channel HBA Driver
3 * Copyright (c) 2003-2005 QLogic Corporation
1da177e4 4 *
fa90c54f 5 * See LICENSE.qla2xxx for copyright and licensing details.
1da177e4
LT		 6 */
7#include "qla_def.h"
8
9#include <linux/moduleparam.h>
10#include <linux/vmalloc.h>
11#include <linux/smp_lock.h>
12#include <linux/delay.h>
13
14#include <scsi/scsi_tcq.h>
15#include <scsi/scsicam.h>
16#include <scsi/scsi_transport.h>
17#include <scsi/scsi_transport_fc.h>
18
19/*
20 * Driver version
21 */
22char qla2x00_version_str[40];
23
24/*
25 * SRB allocation cache
26 */
354d6b21 27static kmem_cache_t *srb_cachep;
1da177e4
LT		 28
29/*
30 * Ioctl related information.
31 */
354d6b21 32static int num_hosts;
1da177e4
LT		 33
34int ql2xlogintimeout = 20;
35module_param(ql2xlogintimeout, int, S_IRUGO|S_IRUSR);
36MODULE_PARM_DESC(ql2xlogintimeout,
37 "Login timeout value in seconds.");
38
8482e118 39int qlport_down_retry = 30;
1da177e4
LT		 40module_param(qlport_down_retry, int, S_IRUGO|S_IRUSR);
41MODULE_PARM_DESC(qlport_down_retry,
42 "Maximum number of command retries to a port that returns"
43 "a PORT-DOWN status.");
44
1da177e4
LT		 45int ql2xplogiabsentdevice;
46module_param(ql2xplogiabsentdevice, int, S_IRUGO|S_IWUSR);
47MODULE_PARM_DESC(ql2xplogiabsentdevice,
48 "Option to enable PLOGI to devices that are not present after "
49 "a Fabric scan. This is needed for several broken switches."
50 "Default is 0 - no PLOGI. 1 - perfom PLOGI.");
51
1da177e4
LT		 52int ql2xloginretrycount = 0;
53module_param(ql2xloginretrycount, int, S_IRUGO|S_IRUSR);
54MODULE_PARM_DESC(ql2xloginretrycount,
55 "Specify an alternate value for the NVRAM login retry count.");
56
331e3476
AV		 57#if defined(CONFIG_SCSI_QLA2XXX_EMBEDDED_FIRMWARE)
58int ql2xfwloadflash;
59module_param(ql2xfwloadflash, int, S_IRUGO|S_IRUSR);
60MODULE_PARM_DESC(ql2xfwloadflash,
61 "Load ISP24xx firmware image from FLASH (onboard memory).");
62#endif
63
1da177e4
LT		 64static void qla2x00_free_device(scsi_qla_host_t *);
65
66static void qla2x00_config_dma_addressing(scsi_qla_host_t *ha);
67
cca5335c
AV		 68int ql2xfdmienable;
69module_param(ql2xfdmienable, int, S_IRUGO|S_IRUSR);
70MODULE_PARM_DESC(ql2xfdmienable,
71 "Enables FDMI registratons "
72 "Default is 0 - no FDMI. 1 - perfom FDMI.");
73
79f89a42 74int ql2xprocessrscn;
75module_param(ql2xprocessrscn, int, S_IRUGO|S_IRUSR);
76MODULE_PARM_DESC(ql2xprocessrscn,
77 "Option to enable port RSCN handling via a series of less"
78 "fabric intrusive ADISCs and PLOGIs.");
79
1da177e4 80/*
fa2a1ce5 81 * SCSI host template entry points
1da177e4
LT		 82 */
83static int qla2xxx_slave_configure(struct scsi_device * device);
f4f051eb 84static int qla2xxx_slave_alloc(struct scsi_device *);
85static void qla2xxx_slave_destroy(struct scsi_device *);
1da177e4
LT		 86static int qla2x00_queuecommand(struct scsi_cmnd *cmd,
87 void (*fn)(struct scsi_cmnd *));
fca29703
AV		 88static int qla24xx_queuecommand(struct scsi_cmnd *cmd,
89 void (*fn)(struct scsi_cmnd *));
1da177e4
LT		 90static int qla2xxx_eh_abort(struct scsi_cmnd *);
91static int qla2xxx_eh_device_reset(struct scsi_cmnd *);
92static int qla2xxx_eh_bus_reset(struct scsi_cmnd *);
93static int qla2xxx_eh_host_reset(struct scsi_cmnd *);
94static int qla2x00_loop_reset(scsi_qla_host_t *ha);
95static int qla2x00_device_reset(scsi_qla_host_t *, fc_port_t *);
96
ce7e4af7
AV		 97static int qla2x00_change_queue_depth(struct scsi_device *, int);
98static int qla2x00_change_queue_type(struct scsi_device *, int);
99
1da177e4
LT		 100static struct scsi_host_template qla2x00_driver_template = {
101 .module = THIS_MODULE,
102 .name = "qla2xxx",
1da177e4
LT		 103 .queuecommand = qla2x00_queuecommand,
104
105 .eh_abort_handler = qla2xxx_eh_abort,
106 .eh_device_reset_handler = qla2xxx_eh_device_reset,
107 .eh_bus_reset_handler = qla2xxx_eh_bus_reset,
108 .eh_host_reset_handler = qla2xxx_eh_host_reset,
109
110 .slave_configure = qla2xxx_slave_configure,
111
f4f051eb 112 .slave_alloc = qla2xxx_slave_alloc,
113 .slave_destroy = qla2xxx_slave_destroy,
ce7e4af7
AV		 114 .change_queue_depth = qla2x00_change_queue_depth,
115 .change_queue_type = qla2x00_change_queue_type,
1da177e4
LT		 116 .this_id = -1,
117 .cmd_per_lun = 3,
118 .use_clustering = ENABLE_CLUSTERING,
119 .sg_tablesize = SG_ALL,
120
121 /*
122 * The RISC allows for each command to transfer (2^32-1) bytes of data,
123 * which equates to 0x800000 sectors.
124 */
125 .max_sectors = 0xFFFF,
afb046e2 126 .shost_attrs = qla2x00_host_attrs,
1da177e4
LT		 127};
128
fca29703
AV		 129static struct scsi_host_template qla24xx_driver_template = {
130 .module = THIS_MODULE,
131 .name = "qla2xxx",
132 .queuecommand = qla24xx_queuecommand,
133
134 .eh_abort_handler = qla2xxx_eh_abort,
135 .eh_device_reset_handler = qla2xxx_eh_device_reset,
136 .eh_bus_reset_handler = qla2xxx_eh_bus_reset,
137 .eh_host_reset_handler = qla2xxx_eh_host_reset,
138
139 .slave_configure = qla2xxx_slave_configure,
140
141 .slave_alloc = qla2xxx_slave_alloc,
142 .slave_destroy = qla2xxx_slave_destroy,
ce7e4af7
AV		 143 .change_queue_depth = qla2x00_change_queue_depth,
144 .change_queue_type = qla2x00_change_queue_type,
fca29703
AV		 145 .this_id = -1,
146 .cmd_per_lun = 3,
147 .use_clustering = ENABLE_CLUSTERING,
148 .sg_tablesize = SG_ALL,
149
150 .max_sectors = 0xFFFF,
afb046e2 151 .shost_attrs = qla2x00_host_attrs,
fca29703
AV		 152};
153
1da177e4
LT		 154static struct scsi_transport_template *qla2xxx_transport_template = NULL;
155
1da177e4
LT		 156/* TODO Convert to inlines
157 *
158 * Timer routines
159 */
160#define WATCH_INTERVAL 1 /* number of seconds */
161
162static void qla2x00_timer(scsi_qla_host_t *);
163
164static __inline__ void qla2x00_start_timer(scsi_qla_host_t *,
165 void *, unsigned long);
166static __inline__ void qla2x00_restart_timer(scsi_qla_host_t *, unsigned long);
167static __inline__ void qla2x00_stop_timer(scsi_qla_host_t *);
168
169static inline void
170qla2x00_start_timer(scsi_qla_host_t *ha, void *func, unsigned long interval)
171{
172 init_timer(&ha->timer);
173 ha->timer.expires = jiffies + interval * HZ;
174 ha->timer.data = (unsigned long)ha;
175 ha->timer.function = (void (*)(unsigned long))func;
176 add_timer(&ha->timer);
177 ha->timer_active = 1;
178}
179
180static inline void
181qla2x00_restart_timer(scsi_qla_host_t *ha, unsigned long interval)
182{
183 mod_timer(&ha->timer, jiffies + interval * HZ);
184}
185
186static __inline__ void
187qla2x00_stop_timer(scsi_qla_host_t *ha)
188{
189 del_timer_sync(&ha->timer);
190 ha->timer_active = 0;
191}
192
1da177e4
LT		 193static int qla2x00_do_dpc(void *data);
194
195static void qla2x00_rst_aen(scsi_qla_host_t *);
196
197static uint8_t qla2x00_mem_alloc(scsi_qla_host_t *);
198static void qla2x00_mem_free(scsi_qla_host_t *ha);
199static int qla2x00_allocate_sp_pool( scsi_qla_host_t *ha);
200static void qla2x00_free_sp_pool(scsi_qla_host_t *ha);
f4f051eb 201static void qla2x00_sp_free_dma(scsi_qla_host_t *, srb_t *);
202void qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *);
1da177e4 203
1da177e4
LT		 204/* -------------------------------------------------------------------------- */
205
1da177e4 206static char *
abbd8870 207qla2x00_pci_info_str(struct scsi_qla_host *ha, char *str)
1da177e4
LT		 208{
209 static char *pci_bus_modes[] = {
210 "33", "66", "100", "133",
211 };
212 uint16_t pci_bus;
213
214 strcpy(str, "PCI");
215 pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
216 if (pci_bus) {
217 strcat(str, "-X (");
218 strcat(str, pci_bus_modes[pci_bus]);
219 } else {
220 pci_bus = (ha->pci_attr & BIT_8) >> 8;
221 strcat(str, " (");
222 strcat(str, pci_bus_modes[pci_bus]);
223 }
224 strcat(str, " MHz)");
225
226 return (str);
227}
228
fca29703
AV		 229static char *
230qla24xx_pci_info_str(struct scsi_qla_host *ha, char *str)
231{
232 static char *pci_bus_modes[] = { "33", "66", "100", "133", };
233 uint32_t pci_bus;
234 int pcie_reg;
235
236 pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
237 if (pcie_reg) {
238 char lwstr[6];
239 uint16_t pcie_lstat, lspeed, lwidth;
240
241 pcie_reg += 0x12;
242 pci_read_config_word(ha->pdev, pcie_reg, &pcie_lstat);
243 lspeed = pcie_lstat & (BIT_0 | BIT_1 | BIT_2 | BIT_3);
244 lwidth = (pcie_lstat &
245 (BIT_4 | BIT_5 | BIT_6 | BIT_7 | BIT_8 | BIT_9)) >> 4;
246
247 strcpy(str, "PCIe (");
248 if (lspeed == 1)
249 strcat(str, "2.5Gb/s ");
250 else
251 strcat(str, "<unknown> ");
252 snprintf(lwstr, sizeof(lwstr), "x%d)", lwidth);
253 strcat(str, lwstr);
254
255 return str;
256 }
257
258 strcpy(str, "PCI");
259 pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
260 if (pci_bus == 0 || pci_bus == 8) {
261 strcat(str, " (");
262 strcat(str, pci_bus_modes[pci_bus >> 3]);
263 } else {
264 strcat(str, "-X ");
265 if (pci_bus & BIT_2)
266 strcat(str, "Mode 2");
267 else
268 strcat(str, "Mode 1");
269 strcat(str, " (");
270 strcat(str, pci_bus_modes[pci_bus & ~BIT_2]);
271 }
272 strcat(str, " MHz)");
273
274 return str;
275}
276
1da177e4 277char *
abbd8870 278qla2x00_fw_version_str(struct scsi_qla_host *ha, char *str)
1da177e4
LT		 279{
280 char un_str[10];
fa2a1ce5 281
1da177e4
LT		 282 sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
283 ha->fw_minor_version,
284 ha->fw_subminor_version);
285
286 if (ha->fw_attributes & BIT_9) {
287 strcat(str, "FLX");
288 return (str);
289 }
290
291 switch (ha->fw_attributes & 0xFF) {
292 case 0x7:
293 strcat(str, "EF");
294 break;
295 case 0x17:
296 strcat(str, "TP");
297 break;
298 case 0x37:
299 strcat(str, "IP");
300 break;
301 case 0x77:
302 strcat(str, "VI");
303 break;
304 default:
305 sprintf(un_str, "(%x)", ha->fw_attributes);
306 strcat(str, un_str);
307 break;
308 }
309 if (ha->fw_attributes & 0x100)
310 strcat(str, "X");
311
312 return (str);
313}
314
fca29703
AV		 315char *
316qla24xx_fw_version_str(struct scsi_qla_host *ha, char *str)
317{
f0883ac6
AV		 318 sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
319 ha->fw_minor_version,
320 ha->fw_subminor_version);
321
fca29703
AV		 322 if (ha->fw_attributes & BIT_0)
323 strcat(str, "[Class 2] ");
324 if (ha->fw_attributes & BIT_1)
325 strcat(str, "[IP] ");
326 if (ha->fw_attributes & BIT_2)
327 strcat(str, "[Multi-ID] ");
328 if (ha->fw_attributes & BIT_13)
329 strcat(str, "[Experimental]");
330 return str;
fca29703
AV		 331}
332
333static inline srb_t *
334qla2x00_get_new_sp(scsi_qla_host_t *ha, fc_port_t *fcport,
335 struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
336{
337 srb_t *sp;
338
339 sp = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
340 if (!sp)
341 return sp;
342
343 atomic_set(&sp->ref_count, 1);
344 sp->ha = ha;
345 sp->fcport = fcport;
346 sp->cmd = cmd;
347 sp->flags = 0;
348 CMD_SP(cmd) = (void *)sp;
349 cmd->scsi_done = done;
350
351 return sp;
352}
353
1da177e4 354static int
f4f051eb 355qla2x00_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
1da177e4 356{
f4f051eb 357 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
bdf79621 358 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
19a7b4ae 359 struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
f4f051eb 360 srb_t *sp;
361 int rval;
1da177e4 362
19a7b4ae
JSEC		 363 rval = fc_remote_port_chkready(rport);
364 if (rval) {
365 cmd->result = rval;
f4f051eb 366 goto qc_fail_command;
367 }
1da177e4 368
387f96b4 369 /* Close window on fcport/rport state-transitioning. */
370 if (!*(fc_port_t **)rport->dd_data) {
371 cmd->result = DID_IMM_RETRY << 16;
372 goto qc_fail_command;
373 }
374
f4f051eb 375 if (atomic_read(&fcport->state) != FCS_ONLINE) {
376 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
377 atomic_read(&ha->loop_state) == LOOP_DEAD) {
378 cmd->result = DID_NO_CONNECT << 16;
379 goto qc_fail_command;
380 }
381 goto qc_host_busy;
382 }
1da177e4
LT		 383
384 spin_unlock_irq(ha->host->host_lock);
385
fca29703
AV		 386 sp = qla2x00_get_new_sp(ha, fcport, cmd, done);
387 if (!sp)
f4f051eb 388 goto qc_host_busy_lock;
1da177e4 389
f4f051eb 390 rval = qla2x00_start_scsi(sp);
391 if (rval != QLA_SUCCESS)
392 goto qc_host_busy_free_sp;
1da177e4 393
f4f051eb 394 spin_lock_irq(ha->host->host_lock);
1da177e4 395
f4f051eb 396 return 0;
1da177e4 397
f4f051eb 398qc_host_busy_free_sp:
399 qla2x00_sp_free_dma(ha, sp);
f4f051eb 400 mempool_free(sp, ha->srb_mempool);
1da177e4 401
f4f051eb 402qc_host_busy_lock:
403 spin_lock_irq(ha->host->host_lock);
1da177e4 404
f4f051eb 405qc_host_busy:
406 return SCSI_MLQUEUE_HOST_BUSY;
1da177e4 407
f4f051eb 408qc_fail_command:
409 done(cmd);
1da177e4 410
f4f051eb 411 return 0;
1da177e4
LT		 412}
413
fca29703
AV		 414
415static int
416qla24xx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
417{
418 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
419 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
19a7b4ae 420 struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
fca29703
AV		 421 srb_t *sp;
422 int rval;
423
19a7b4ae
JSEC		 424 rval = fc_remote_port_chkready(rport);
425 if (rval) {
426 cmd->result = rval;
fca29703
AV		 427 goto qc24_fail_command;
428 }
429
387f96b4 430 /* Close window on fcport/rport state-transitioning. */
431 if (!*(fc_port_t **)rport->dd_data) {
432 cmd->result = DID_IMM_RETRY << 16;
433 goto qc24_fail_command;
434 }
435
fca29703
AV		 436 if (atomic_read(&fcport->state) != FCS_ONLINE) {
437 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
438 atomic_read(&ha->loop_state) == LOOP_DEAD) {
439 cmd->result = DID_NO_CONNECT << 16;
440 goto qc24_fail_command;
441 }
442 goto qc24_host_busy;
443 }
444
445 spin_unlock_irq(ha->host->host_lock);
446
447 sp = qla2x00_get_new_sp(ha, fcport, cmd, done);
448 if (!sp)
449 goto qc24_host_busy_lock;
450
451 rval = qla24xx_start_scsi(sp);
452 if (rval != QLA_SUCCESS)
453 goto qc24_host_busy_free_sp;
454
455 spin_lock_irq(ha->host->host_lock);
456
457 return 0;
458
459qc24_host_busy_free_sp:
460 qla2x00_sp_free_dma(ha, sp);
461 mempool_free(sp, ha->srb_mempool);
462
463qc24_host_busy_lock:
464 spin_lock_irq(ha->host->host_lock);
465
466qc24_host_busy:
467 return SCSI_MLQUEUE_HOST_BUSY;
468
469qc24_fail_command:
470 done(cmd);
471
472 return 0;
473}
474
475
1da177e4
LT		 476/*
477 * qla2x00_eh_wait_on_command
478 * Waits for the command to be returned by the Firmware for some
479 * max time.
480 *
481 * Input:
482 * ha = actual ha whose done queue will contain the command
483 * returned by firmware.
484 * cmd = Scsi Command to wait on.
485 * flag = Abort/Reset(Bus or Device Reset)
486 *
487 * Return:
488 * Not Found : 0
489 * Found : 1
490 */
491static int
492qla2x00_eh_wait_on_command(scsi_qla_host_t *ha, struct scsi_cmnd *cmd)
493{
fe74c71f
AV		 494#define ABORT_POLLING_PERIOD 1000
495#define ABORT_WAIT_ITER ((10 * 1000) / (ABORT_POLLING_PERIOD))
f4f051eb 496 unsigned long wait_iter = ABORT_WAIT_ITER;
497 int ret = QLA_SUCCESS;
1da177e4 498
f4f051eb 499 while (CMD_SP(cmd)) {
fe74c71f 500 msleep(ABORT_POLLING_PERIOD);
1da177e4 501
f4f051eb 502 if (--wait_iter)
503 break;
504 }
505 if (CMD_SP(cmd))
506 ret = QLA_FUNCTION_FAILED;
1da177e4 507
f4f051eb 508 return ret;
1da177e4
LT		 509}
510
511/*
512 * qla2x00_wait_for_hba_online
fa2a1ce5 513 * Wait till the HBA is online after going through
1da177e4
LT		 514 * <= MAX_RETRIES_OF_ISP_ABORT or
515 * finally HBA is disabled ie marked offline
516 *
517 * Input:
518 * ha - pointer to host adapter structure
fa2a1ce5
AV		 519 *
520 * Note:
1da177e4
LT		 521 * Does context switching-Release SPIN_LOCK
522 * (if any) before calling this routine.
523 *
524 * Return:
525 * Success (Adapter is online) : 0
526 * Failed (Adapter is offline/disabled) : 1
527 */
854165f4 528int
1da177e4
LT		 529qla2x00_wait_for_hba_online(scsi_qla_host_t *ha)
530{
fca29703
AV		 531 int return_status;
532 unsigned long wait_online;
1da177e4 533
fa2a1ce5 534 wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
1da177e4
LT		 535 while (((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) ||
536 test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags) ||
537 test_bit(ISP_ABORT_RETRY, &ha->dpc_flags) ||
538 ha->dpc_active) && time_before(jiffies, wait_online)) {
539
540 msleep(1000);
541 }
fa2a1ce5
AV		 542 if (ha->flags.online)
543 return_status = QLA_SUCCESS;
1da177e4
LT		 544 else
545 return_status = QLA_FUNCTION_FAILED;
546
547 DEBUG2(printk("%s return_status=%d\n",__func__,return_status));
548
549 return (return_status);
550}
551
552/*
553 * qla2x00_wait_for_loop_ready
554 * Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
fa2a1ce5 555 * to be in LOOP_READY state.
1da177e4
LT		 556 * Input:
557 * ha - pointer to host adapter structure
fa2a1ce5
AV		 558 *
559 * Note:
1da177e4
LT		 560 * Does context switching-Release SPIN_LOCK
561 * (if any) before calling this routine.
fa2a1ce5 562 *
1da177e4
LT		 563 *
564 * Return:
565 * Success (LOOP_READY) : 0
566 * Failed (LOOP_NOT_READY) : 1
567 */
fa2a1ce5 568static inline int
1da177e4
LT		 569qla2x00_wait_for_loop_ready(scsi_qla_host_t *ha)
570{
571 int return_status = QLA_SUCCESS;
572 unsigned long loop_timeout ;
573
574 /* wait for 5 min at the max for loop to be ready */
fa2a1ce5 575 loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ);
1da177e4
LT		 576
577 while ((!atomic_read(&ha->loop_down_timer) &&
578 atomic_read(&ha->loop_state) == LOOP_DOWN) ||
1da177e4
LT		 579 atomic_read(&ha->loop_state) != LOOP_READY) {
580 msleep(1000);
581 if (time_after_eq(jiffies, loop_timeout)) {
582 return_status = QLA_FUNCTION_FAILED;
583 break;
584 }
585 }
fa2a1ce5 586 return (return_status);
1da177e4
LT		 587}
588
589/**************************************************************************
590* qla2xxx_eh_abort
591*
592* Description:
593* The abort function will abort the specified command.
594*
595* Input:
596* cmd = Linux SCSI command packet to be aborted.
597*
598* Returns:
599* Either SUCCESS or FAILED.
600*
601* Note:
602**************************************************************************/
603int
604qla2xxx_eh_abort(struct scsi_cmnd *cmd)
605{
f4f051eb 606 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
607 srb_t *sp;
608 int ret, i;
609 unsigned int id, lun;
610 unsigned long serial;
18e144d3 611 unsigned long flags;
1da177e4 612
f4f051eb 613 if (!CMD_SP(cmd))
614 return FAILED;
1da177e4 615
f4f051eb 616 ret = FAILED;
1da177e4 617
f4f051eb 618 id = cmd->device->id;
619 lun = cmd->device->lun;
620 serial = cmd->serial_number;
1da177e4 621
f4f051eb 622 /* Check active list for command command. */
18e144d3 623 spin_lock_irqsave(&ha->hardware_lock, flags);
f4f051eb 624 for (i = 1; i < MAX_OUTSTANDING_COMMANDS; i++) {
625 sp = ha->outstanding_cmds[i];
1da177e4 626
f4f051eb 627 if (sp == NULL)
628 continue;
1da177e4 629
f4f051eb 630 if (sp->cmd != cmd)
631 continue;
1da177e4 632
f4f051eb 633 DEBUG2(printk("%s(%ld): aborting sp %p from RISC. pid=%ld "
634 "sp->state=%x\n", __func__, ha->host_no, sp, serial,
635 sp->state));
636 DEBUG3(qla2x00_print_scsi_cmd(cmd);)
1da177e4 637
18e144d3 638 spin_unlock_irqrestore(&ha->hardware_lock, flags);
abbd8870 639 if (ha->isp_ops.abort_command(ha, sp)) {
f4f051eb 640 DEBUG2(printk("%s(%ld): abort_command "
641 "mbx failed.\n", __func__, ha->host_no));
642 } else {
643 DEBUG3(printk("%s(%ld): abort_command "
644 "mbx success.\n", __func__, ha->host_no));
645 ret = SUCCESS;
646 }
18e144d3 647 spin_lock_irqsave(&ha->hardware_lock, flags);
1da177e4 648
f4f051eb 649 break;
650 }
18e144d3 651 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1da177e4 652
f4f051eb 653 /* Wait for the command to be returned. */
654 if (ret == SUCCESS) {
f4f051eb 655 if (qla2x00_eh_wait_on_command(ha, cmd) != QLA_SUCCESS) {
fa2a1ce5 656 qla_printk(KERN_ERR, ha,
f4f051eb 657 "scsi(%ld:%d:%d): Abort handler timed out -- %lx "
658 "%x.\n", ha->host_no, id, lun, serial, ret);
659 }
1da177e4 660 }
1da177e4 661
fa2a1ce5 662 qla_printk(KERN_INFO, ha,
f4f051eb 663 "scsi(%ld:%d:%d): Abort command issued -- %lx %x.\n", ha->host_no,
664 id, lun, serial, ret);
1da177e4 665
f4f051eb 666 return ret;
667}
1da177e4 668
f4f051eb 669/**************************************************************************
670* qla2x00_eh_wait_for_pending_target_commands
671*
672* Description:
673* Waits for all the commands to come back from the specified target.
674*
675* Input:
676* ha - pointer to scsi_qla_host structure.
fa2a1ce5 677* t - target
f4f051eb 678* Returns:
679* Either SUCCESS or FAILED.
680*
681* Note:
682**************************************************************************/
683static int
684qla2x00_eh_wait_for_pending_target_commands(scsi_qla_host_t *ha, unsigned int t)
685{
686 int cnt;
687 int status;
688 srb_t *sp;
689 struct scsi_cmnd *cmd;
18e144d3 690 unsigned long flags;
1da177e4 691
f4f051eb 692 status = 0;
1da177e4
LT		 693
694 /*
f4f051eb 695 * Waiting for all commands for the designated target in the active
696 * array
1da177e4
LT		 697 */
698 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
18e144d3 699 spin_lock_irqsave(&ha->hardware_lock, flags);
1da177e4
LT		 700 sp = ha->outstanding_cmds[cnt];
701 if (sp) {
702 cmd = sp->cmd;
18e144d3 703 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1da177e4
LT		 704 if (cmd->device->id == t) {
705 if (!qla2x00_eh_wait_on_command(ha, cmd)) {
706 status = 1;
707 break;
708 }
709 }
f4f051eb 710 } else {
18e144d3 711 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1da177e4
LT		 712 }
713 }
714 return (status);
715}
716
717
718/**************************************************************************
719* qla2xxx_eh_device_reset
720*
721* Description:
722* The device reset function will reset the target and abort any
723* executing commands.
724*
725* NOTE: The use of SP is undefined within this context. Do *NOT*
fa2a1ce5 726* attempt to use this value, even if you determine it is
1da177e4
LT		 727* non-null.
728*
729* Input:
730* cmd = Linux SCSI command packet of the command that cause the
731* bus device reset.
732*
733* Returns:
734* SUCCESS/FAILURE (defined as macro in scsi.h).
735*
736**************************************************************************/
737int
738qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
739{
f4f051eb 740 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
bdf79621 741 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
f4f051eb 742 srb_t *sp;
743 int ret;
744 unsigned int id, lun;
745 unsigned long serial;
1da177e4 746
f4f051eb 747 ret = FAILED;
1da177e4 748
f4f051eb 749 id = cmd->device->id;
750 lun = cmd->device->lun;
751 serial = cmd->serial_number;
1da177e4 752
f4f051eb 753 sp = (srb_t *) CMD_SP(cmd);
bdf79621 754 if (!sp || !fcport)
f4f051eb 755 return ret;
1da177e4
LT		 756
757 qla_printk(KERN_INFO, ha,
f4f051eb 758 "scsi(%ld:%d:%d): DEVICE RESET ISSUED.\n", ha->host_no, id, lun);
1da177e4 759
94d0e7b8 760 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
1da177e4 761 goto eh_dev_reset_done;
1da177e4
LT		 762
763 if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
f4f051eb 764 if (qla2x00_device_reset(ha, fcport) == 0)
765 ret = SUCCESS;
1da177e4
LT		 766
767#if defined(LOGOUT_AFTER_DEVICE_RESET)
f4f051eb 768 if (ret == SUCCESS) {
769 if (fcport->flags & FC_FABRIC_DEVICE) {
abbd8870 770 ha->isp_ops.fabric_logout(ha, fcport->loop_id);
d97994dc 771 qla2x00_mark_device_lost(ha, fcport, 0, 0);
1da177e4
LT		 772 }
773 }
774#endif
775 } else {
776 DEBUG2(printk(KERN_INFO
777 "%s failed: loop not ready\n",__func__);)
778 }
779
f4f051eb 780 if (ret == FAILED) {
1da177e4
LT		 781 DEBUG3(printk("%s(%ld): device reset failed\n",
782 __func__, ha->host_no));
783 qla_printk(KERN_INFO, ha, "%s: device reset failed\n",
784 __func__);
785
786 goto eh_dev_reset_done;
787 }
788
9a41a62b
AV		 789 /* Flush outstanding commands. */
790 if (qla2x00_eh_wait_for_pending_target_commands(ha, id))
791 ret = FAILED;
792 if (ret == FAILED) {
793 DEBUG3(printk("%s(%ld): failed while waiting for commands\n",
794 __func__, ha->host_no));
795 qla_printk(KERN_INFO, ha,
796 "%s: failed while waiting for commands\n", __func__);
797 } else
798 qla_printk(KERN_INFO, ha,
799 "scsi(%ld:%d:%d): DEVICE RESET SUCCEEDED.\n", ha->host_no,
800 id, lun);
28f22b03 801 eh_dev_reset_done:
f4f051eb 802 return ret;
1da177e4
LT		 803}
804
805/**************************************************************************
806* qla2x00_eh_wait_for_pending_commands
807*
808* Description:
809* Waits for all the commands to come back from the specified host.
810*
811* Input:
812* ha - pointer to scsi_qla_host structure.
813*
814* Returns:
815* 1 : SUCCESS
816* 0 : FAILED
817*
818* Note:
819**************************************************************************/
820static int
821qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *ha)
822{
823 int cnt;
824 int status;
825 srb_t *sp;
826 struct scsi_cmnd *cmd;
18e144d3 827 unsigned long flags;
1da177e4
LT		 828
829 status = 1;
830
831 /*
832 * Waiting for all commands for the designated target in the active
833 * array
834 */
835 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
18e144d3 836 spin_lock_irqsave(&ha->hardware_lock, flags);
1da177e4
LT		 837 sp = ha->outstanding_cmds[cnt];
838 if (sp) {
839 cmd = sp->cmd;
18e144d3 840 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1da177e4
LT		 841 status = qla2x00_eh_wait_on_command(ha, cmd);
842 if (status == 0)
843 break;
844 }
845 else {
18e144d3 846 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1da177e4
LT		 847 }
848 }
849 return (status);
850}
851
852
853/**************************************************************************
854* qla2xxx_eh_bus_reset
855*
856* Description:
857* The bus reset function will reset the bus and abort any executing
858* commands.
859*
860* Input:
861* cmd = Linux SCSI command packet of the command that cause the
862* bus reset.
863*
864* Returns:
865* SUCCESS/FAILURE (defined as macro in scsi.h).
866*
867**************************************************************************/
868int
869qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
870{
f4f051eb 871 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
bdf79621 872 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
1da177e4 873 srb_t *sp;
f4f051eb 874 int ret;
875 unsigned int id, lun;
876 unsigned long serial;
877
878 ret = FAILED;
879
880 id = cmd->device->id;
881 lun = cmd->device->lun;
882 serial = cmd->serial_number;
1da177e4 883
1da177e4 884 sp = (srb_t *) CMD_SP(cmd);
bdf79621 885 if (!sp || !fcport)
f4f051eb 886 return ret;
1da177e4
LT		 887
888 qla_printk(KERN_INFO, ha,
f4f051eb 889 "scsi(%ld:%d:%d): LOOP RESET ISSUED.\n", ha->host_no, id, lun);
1da177e4 890
1da177e4
LT		 891 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS) {
892 DEBUG2(printk("%s failed:board disabled\n",__func__));
f4f051eb 893 goto eh_bus_reset_done;
1da177e4
LT		 894 }
895
896 if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
f4f051eb 897 if (qla2x00_loop_reset(ha) == QLA_SUCCESS)
898 ret = SUCCESS;
1da177e4 899 }
f4f051eb 900 if (ret == FAILED)
901 goto eh_bus_reset_done;
1da177e4 902
9a41a62b
AV		 903 /* Flush outstanding commands. */
904 if (!qla2x00_eh_wait_for_pending_commands(ha))
905 ret = FAILED;
1da177e4 906
f4f051eb 907eh_bus_reset_done:
1da177e4 908 qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
f4f051eb 909 (ret == FAILED) ? "failed" : "succeded");
1da177e4 910
f4f051eb 911 return ret;
1da177e4
LT		 912}
913
914/**************************************************************************
915* qla2xxx_eh_host_reset
916*
917* Description:
918* The reset function will reset the Adapter.
919*
920* Input:
921* cmd = Linux SCSI command packet of the command that cause the
922* adapter reset.
923*
924* Returns:
925* Either SUCCESS or FAILED.
926*
927* Note:
928**************************************************************************/
929int
930qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
931{
f4f051eb 932 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
bdf79621 933 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
f4f051eb 934 srb_t *sp;
935 int ret;
936 unsigned int id, lun;
937 unsigned long serial;
1da177e4 938
f4f051eb 939 ret = FAILED;
940
941 id = cmd->device->id;
942 lun = cmd->device->lun;
943 serial = cmd->serial_number;
944
945 sp = (srb_t *) CMD_SP(cmd);
bdf79621 946 if (!sp || !fcport)
f4f051eb 947 return ret;
1da177e4 948
1da177e4 949 qla_printk(KERN_INFO, ha,
f4f051eb 950 "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", ha->host_no, id, lun);
1da177e4 951
1da177e4 952 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
f4f051eb 953 goto eh_host_reset_lock;
1da177e4
LT		 954
955 /*
956 * Fixme-may be dpc thread is active and processing
fa2a1ce5 957 * loop_resync,so wait a while for it to
1da177e4
LT		 958 * be completed and then issue big hammer.Otherwise
959 * it may cause I/O failure as big hammer marks the
960 * devices as lost kicking of the port_down_timer
961 * while dpc is stuck for the mailbox to complete.
962 */
1da177e4
LT		 963 qla2x00_wait_for_loop_ready(ha);
964 set_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
965 if (qla2x00_abort_isp(ha)) {
966 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
967 /* failed. schedule dpc to try */
968 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
969
970 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
f4f051eb 971 goto eh_host_reset_lock;
fa2a1ce5 972 }
1da177e4
LT		 973 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
974
1da177e4 975 /* Waiting for our command in done_queue to be returned to OS.*/
f4f051eb 976 if (qla2x00_eh_wait_for_pending_commands(ha))
977 ret = SUCCESS;
1da177e4 978
f4f051eb 979eh_host_reset_lock:
f4f051eb 980 qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
981 (ret == FAILED) ? "failed" : "succeded");
1da177e4 982
f4f051eb 983 return ret;
984}
1da177e4
LT		 985
986/*
987* qla2x00_loop_reset
988* Issue loop reset.
989*
990* Input:
991* ha = adapter block pointer.
992*
993* Returns:
994* 0 = success
995*/
996static int
997qla2x00_loop_reset(scsi_qla_host_t *ha)
998{
999 int status = QLA_SUCCESS;
bdf79621 1000 struct fc_port *fcport;
1da177e4
LT		 1001
1002 if (ha->flags.enable_lip_reset) {
1003 status = qla2x00_lip_reset(ha);
1004 }
1005
1006 if (status == QLA_SUCCESS && ha->flags.enable_target_reset) {
bdf79621 1007 list_for_each_entry(fcport, &ha->fcports, list) {
1008 if (fcport->port_type != FCT_TARGET)
1da177e4
LT		 1009 continue;
1010
c00c72ae 1011 status = qla2x00_device_reset(ha, fcport);
bdf79621 1012 if (status != QLA_SUCCESS)
1da177e4 1013 break;
1da177e4
LT		 1014 }
1015 }
1016
1017 if (status == QLA_SUCCESS &&
fa2a1ce5 1018 ((!ha->flags.enable_target_reset &&
1da177e4
LT		 1019 !ha->flags.enable_lip_reset) ||
1020 ha->flags.enable_lip_full_login)) {
1021
1022 status = qla2x00_full_login_lip(ha);
1023 }
1024
1025 /* Issue marker command only when we are going to start the I/O */
1026 ha->marker_needed = 1;
1027
1028 if (status) {
1029 /* Empty */
1030 DEBUG2_3(printk("%s(%ld): **** FAILED ****\n",
1031 __func__,
1032 ha->host_no);)
1033 } else {
1034 /* Empty */
1035 DEBUG3(printk("%s(%ld): exiting normally.\n",
1036 __func__,
1037 ha->host_no);)
1038 }
1039
1040 return(status);
1041}
1042
1043/*
1044 * qla2x00_device_reset
1045 * Issue bus device reset message to the target.
1046 *
1047 * Input:
1048 * ha = adapter block pointer.
1049 * t = SCSI ID.
1050 * TARGET_QUEUE_LOCK must be released.
1051 * ADAPTER_STATE_LOCK must be released.
1052 *
1053 * Context:
1054 * Kernel context.
1055 */
1056static int
1057qla2x00_device_reset(scsi_qla_host_t *ha, fc_port_t *reset_fcport)
1058{
1059 /* Abort Target command will clear Reservation */
abbd8870 1060 return ha->isp_ops.abort_target(reset_fcport);
1da177e4
LT		 1061}
1062
f4f051eb 1063static int
1064qla2xxx_slave_alloc(struct scsi_device *sdev)
1da177e4 1065{
bdf79621 1066 struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1da177e4 1067
19a7b4ae 1068 if (!rport || fc_remote_port_chkready(rport))
f4f051eb 1069 return -ENXIO;
bdf79621 1070
19a7b4ae 1071 sdev->hostdata = *(fc_port_t **)rport->dd_data;
1da177e4 1072
f4f051eb 1073 return 0;
1074}
1da177e4 1075
f4f051eb 1076static int
1077qla2xxx_slave_configure(struct scsi_device *sdev)
1078{
8482e118 1079 scsi_qla_host_t *ha = to_qla_host(sdev->host);
1080 struct fc_rport *rport = starget_to_rport(sdev->sdev_target);
1081
f4f051eb 1082 if (sdev->tagged_supported)
1083 scsi_activate_tcq(sdev, 32);
1084 else
1085 scsi_deactivate_tcq(sdev, 32);
1da177e4 1086
8482e118 1087 rport->dev_loss_tmo = ha->port_down_retry_count + 5;
1088
f4f051eb 1089 return 0;
1090}
1da177e4 1091
f4f051eb 1092static void
1093qla2xxx_slave_destroy(struct scsi_device *sdev)
1094{
1095 sdev->hostdata = NULL;
1da177e4
LT		 1096}
1097
ce7e4af7
AV		 1098static int
1099qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth)
1100{
1101 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1102 return sdev->queue_depth;
1103}
1104
1105static int
1106qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1107{
1108 if (sdev->tagged_supported) {
1109 scsi_set_tag_type(sdev, tag_type);
1110 if (tag_type)
1111 scsi_activate_tcq(sdev, sdev->queue_depth);
1112 else
1113 scsi_deactivate_tcq(sdev, sdev->queue_depth);
1114 } else
1115 tag_type = 0;
1116
1117 return tag_type;
1118}
1119
1da177e4
LT		 1120/**
1121 * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1122 * @ha: HA context
1123 *
1124 * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1125 * supported addressing method.
1126 */
1127static void
1128qla2x00_config_dma_addressing(scsi_qla_host_t *ha)
1129{
7524f9b9 1130 /* Assume a 32bit DMA mask. */
1da177e4 1131 ha->flags.enable_64bit_addressing = 0;
1da177e4 1132
7524f9b9
AV		 1133 if (!dma_set_mask(&ha->pdev->dev, DMA_64BIT_MASK)) {
1134 /* Any upper-dword bits set? */
1135 if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1136 !pci_set_consistent_dma_mask(ha->pdev, DMA_64BIT_MASK)) {
1137 /* Ok, a 64bit DMA mask is applicable. */
1da177e4 1138 ha->flags.enable_64bit_addressing = 1;
abbd8870
AV		 1139 ha->isp_ops.calc_req_entries = qla2x00_calc_iocbs_64;
1140 ha->isp_ops.build_iocbs = qla2x00_build_scsi_iocbs_64;
7524f9b9 1141 return;
1da177e4 1142 }
1da177e4 1143 }
7524f9b9
AV		 1144
1145 dma_set_mask(&ha->pdev->dev, DMA_32BIT_MASK);
1146 pci_set_consistent_dma_mask(ha->pdev, DMA_32BIT_MASK);
1da177e4
LT		 1147}
1148
1149static int
1150qla2x00_iospace_config(scsi_qla_host_t *ha)
1151{
1152 unsigned long pio, pio_len, pio_flags;
1153 unsigned long mmio, mmio_len, mmio_flags;
1154
1155 /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1156 pio = pci_resource_start(ha->pdev, 0);
1157 pio_len = pci_resource_len(ha->pdev, 0);
1158 pio_flags = pci_resource_flags(ha->pdev, 0);
1159 if (pio_flags & IORESOURCE_IO) {
1160 if (pio_len < MIN_IOBASE_LEN) {
1161 qla_printk(KERN_WARNING, ha,
1162 "Invalid PCI I/O region size (%s)...\n",
1163 pci_name(ha->pdev));
1164 pio = 0;
1165 }
1166 } else {
1167 qla_printk(KERN_WARNING, ha,
1168 "region #0 not a PIO resource (%s)...\n",
1169 pci_name(ha->pdev));
1170 pio = 0;
1171 }
1172
1173 /* Use MMIO operations for all accesses. */
1174 mmio = pci_resource_start(ha->pdev, 1);
1175 mmio_len = pci_resource_len(ha->pdev, 1);
1176 mmio_flags = pci_resource_flags(ha->pdev, 1);
1177
1178 if (!(mmio_flags & IORESOURCE_MEM)) {
1179 qla_printk(KERN_ERR, ha,
1180 "region #0 not an MMIO resource (%s), aborting\n",
1181 pci_name(ha->pdev));
1182 goto iospace_error_exit;
1183 }
1184 if (mmio_len < MIN_IOBASE_LEN) {
1185 qla_printk(KERN_ERR, ha,
1186 "Invalid PCI mem region size (%s), aborting\n",
1187 pci_name(ha->pdev));
1188 goto iospace_error_exit;
1189 }
1190
1191 if (pci_request_regions(ha->pdev, ha->brd_info->drv_name)) {
1192 qla_printk(KERN_WARNING, ha,
1193 "Failed to reserve PIO/MMIO regions (%s)\n",
1194 pci_name(ha->pdev));
1195
1196 goto iospace_error_exit;
1197 }
1198
1199 ha->pio_address = pio;
1200 ha->pio_length = pio_len;
1201 ha->iobase = ioremap(mmio, MIN_IOBASE_LEN);
1202 if (!ha->iobase) {
1203 qla_printk(KERN_ERR, ha,
1204 "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
1205
1206 goto iospace_error_exit;
1207 }
1208
1209 return (0);
1210
1211iospace_error_exit:
1212 return (-ENOMEM);
1213}
1214
abbd8870
AV		 1215static void
1216qla2x00_enable_intrs(scsi_qla_host_t *ha)
1217{
1218 unsigned long flags = 0;
3d71644c 1219 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
abbd8870
AV		 1220
1221 spin_lock_irqsave(&ha->hardware_lock, flags);
1222 ha->interrupts_on = 1;
1223 /* enable risc and host interrupts */
1224 WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1225 RD_REG_WORD(&reg->ictrl);
1226 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1227
1228}
1229
1230static void
1231qla2x00_disable_intrs(scsi_qla_host_t *ha)
1232{
1233 unsigned long flags = 0;
3d71644c 1234 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
abbd8870
AV		 1235
1236 spin_lock_irqsave(&ha->hardware_lock, flags);
1237 ha->interrupts_on = 0;
1238 /* disable risc and host interrupts */
1239 WRT_REG_WORD(&reg->ictrl, 0);
1240 RD_REG_WORD(&reg->ictrl);
1241 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1242}
1243
fca29703
AV		 1244static void
1245qla24xx_enable_intrs(scsi_qla_host_t *ha)
1246{
1247 unsigned long flags = 0;
1248 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1249
1250 spin_lock_irqsave(&ha->hardware_lock, flags);
1251 ha->interrupts_on = 1;
1252 WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1253 RD_REG_DWORD(&reg->ictrl);
1254 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1255}
1256
1257static void
1258qla24xx_disable_intrs(scsi_qla_host_t *ha)
1259{
1260 unsigned long flags = 0;
1261 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1262
1263 spin_lock_irqsave(&ha->hardware_lock, flags);
1264 ha->interrupts_on = 0;
1265 WRT_REG_DWORD(&reg->ictrl, 0);
1266 RD_REG_DWORD(&reg->ictrl);
1267 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1268}
1269
1da177e4
LT		 1270/*
1271 * PCI driver interface
1272 */
1273int qla2x00_probe_one(struct pci_dev *pdev, struct qla_board_info *brd_info)
1274{
a1541d5a 1275 int ret = -ENODEV;
fca29703 1276 device_reg_t __iomem *reg;
1da177e4
LT		 1277 struct Scsi_Host *host;
1278 scsi_qla_host_t *ha;
1279 unsigned long flags = 0;
1280 unsigned long wait_switch = 0;
1281 char pci_info[20];
1282 char fw_str[30];
8482e118 1283 fc_port_t *fcport;
5433383e 1284 struct scsi_host_template *sht;
1da177e4
LT		 1285
1286 if (pci_enable_device(pdev))
a1541d5a 1287 goto probe_out;
1da177e4 1288
5433383e
AV		 1289 sht = &qla2x00_driver_template;
1290 if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
1291 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432)
1292 sht = &qla24xx_driver_template;
1293 host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
1da177e4
LT		 1294 if (host == NULL) {
1295 printk(KERN_WARNING
1296 "qla2xxx: Couldn't allocate host from scsi layer!\n");
1297 goto probe_disable_device;
1298 }
1299
1300 /* Clear our data area */
1301 ha = (scsi_qla_host_t *)host->hostdata;
1302 memset(ha, 0, sizeof(scsi_qla_host_t));
1303
1304 ha->pdev = pdev;
1305 ha->host = host;
1306 ha->host_no = host->host_no;
1307 ha->brd_info = brd_info;
1308 sprintf(ha->host_str, "%s_%ld", ha->brd_info->drv_name, ha->host_no);
1309
444d1d9b
AM		 1310 ha->dpc_pid = -1;
1311
1da177e4
LT		 1312 /* Configure PCI I/O space */
1313 ret = qla2x00_iospace_config(ha);
a1541d5a
AV		 1314 if (ret)
1315 goto probe_failed;
1da177e4 1316
1da177e4 1317 qla_printk(KERN_INFO, ha,
5433383e
AV		 1318 "Found an ISP%04X, irq %d, iobase 0x%p\n", pdev->device, pdev->irq,
1319 ha->iobase);
1da177e4
LT		 1320
1321 spin_lock_init(&ha->hardware_lock);
1322
1da177e4
LT		 1323 ha->prev_topology = 0;
1324 ha->ports = MAX_BUSES;
fca29703 1325 ha->init_cb_size = sizeof(init_cb_t);
cca5335c 1326 ha->mgmt_svr_loop_id = MANAGEMENT_SERVER;
04414013 1327 ha->link_data_rate = LDR_UNKNOWN;
854165f4 1328 ha->optrom_size = OPTROM_SIZE_2300;
1da177e4 1329
abbd8870
AV		 1330 /* Assign ISP specific operations. */
1331 ha->isp_ops.pci_config = qla2100_pci_config;
1332 ha->isp_ops.reset_chip = qla2x00_reset_chip;
1333 ha->isp_ops.chip_diag = qla2x00_chip_diag;
1334 ha->isp_ops.config_rings = qla2x00_config_rings;
1335 ha->isp_ops.reset_adapter = qla2x00_reset_adapter;
1336 ha->isp_ops.nvram_config = qla2x00_nvram_config;
1337 ha->isp_ops.update_fw_options = qla2x00_update_fw_options;
0107109e 1338 ha->isp_ops.load_risc = qla2x00_load_risc;
abbd8870
AV		 1339 ha->isp_ops.pci_info_str = qla2x00_pci_info_str;
1340 ha->isp_ops.fw_version_str = qla2x00_fw_version_str;
1341 ha->isp_ops.intr_handler = qla2100_intr_handler;
1342 ha->isp_ops.enable_intrs = qla2x00_enable_intrs;
1343 ha->isp_ops.disable_intrs = qla2x00_disable_intrs;
1344 ha->isp_ops.abort_command = qla2x00_abort_command;
1345 ha->isp_ops.abort_target = qla2x00_abort_target;
1346 ha->isp_ops.fabric_login = qla2x00_login_fabric;
1347 ha->isp_ops.fabric_logout = qla2x00_fabric_logout;
1348 ha->isp_ops.calc_req_entries = qla2x00_calc_iocbs_32;
1349 ha->isp_ops.build_iocbs = qla2x00_build_scsi_iocbs_32;
1350 ha->isp_ops.prep_ms_iocb = qla2x00_prep_ms_iocb;
cca5335c 1351 ha->isp_ops.prep_ms_fdmi_iocb = qla2x00_prep_ms_fdmi_iocb;
459c5378
AV		 1352 ha->isp_ops.read_nvram = qla2x00_read_nvram_data;
1353 ha->isp_ops.write_nvram = qla2x00_write_nvram_data;
abbd8870
AV		 1354 ha->isp_ops.fw_dump = qla2100_fw_dump;
1355 ha->isp_ops.ascii_fw_dump = qla2100_ascii_fw_dump;
854165f4 1356 ha->isp_ops.read_optrom = qla2x00_read_optrom_data;
1357 ha->isp_ops.write_optrom = qla2x00_write_optrom_data;
1da177e4 1358 if (IS_QLA2100(ha)) {
354d6b21 1359 host->max_id = MAX_TARGETS_2100;
1da177e4
LT		 1360 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
1361 ha->request_q_length = REQUEST_ENTRY_CNT_2100;
1362 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1363 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1364 host->sg_tablesize = 32;
abbd8870 1365 ha->gid_list_info_size = 4;
1da177e4 1366 } else if (IS_QLA2200(ha)) {
354d6b21 1367 host->max_id = MAX_TARGETS_2200;
1da177e4
LT		 1368 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1369 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1370 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1371 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
abbd8870 1372 ha->gid_list_info_size = 4;
fca29703 1373 } else if (IS_QLA23XX(ha)) {
354d6b21 1374 host->max_id = MAX_TARGETS_2200;
1da177e4
LT		 1375 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1376 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1377 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1378 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
abbd8870
AV		 1379 ha->isp_ops.pci_config = qla2300_pci_config;
1380 ha->isp_ops.intr_handler = qla2300_intr_handler;
1381 ha->isp_ops.fw_dump = qla2300_fw_dump;
1382 ha->isp_ops.ascii_fw_dump = qla2300_ascii_fw_dump;
f6df144c 1383 ha->isp_ops.beacon_on = qla2x00_beacon_on;
1384 ha->isp_ops.beacon_off = qla2x00_beacon_off;
1385 ha->isp_ops.beacon_blink = qla2x00_beacon_blink;
abbd8870 1386 ha->gid_list_info_size = 6;
854165f4 1387 if (IS_QLA2322(ha) || IS_QLA6322(ha))
1388 ha->optrom_size = OPTROM_SIZE_2322;
fca29703
AV		 1389 } else if (IS_QLA24XX(ha) || IS_QLA25XX(ha)) {
1390 host->max_id = MAX_TARGETS_2200;
1391 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1392 ha->request_q_length = REQUEST_ENTRY_CNT_24XX;
1393 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1394 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1395 ha->init_cb_size = sizeof(struct init_cb_24xx);
cca5335c 1396 ha->mgmt_svr_loop_id = 10;
fca29703
AV		 1397 ha->isp_ops.pci_config = qla24xx_pci_config;
1398 ha->isp_ops.reset_chip = qla24xx_reset_chip;
1399 ha->isp_ops.chip_diag = qla24xx_chip_diag;
1400 ha->isp_ops.config_rings = qla24xx_config_rings;
1401 ha->isp_ops.reset_adapter = qla24xx_reset_adapter;
1402 ha->isp_ops.nvram_config = qla24xx_nvram_config;
1403 ha->isp_ops.update_fw_options = qla24xx_update_fw_options;
5433383e 1404 ha->isp_ops.load_risc = qla24xx_load_risc;
331e3476
AV		 1405#if defined(CONFIG_SCSI_QLA2XXX_EMBEDDED_FIRMWARE)
1406 if (ql2xfwloadflash)
1407 ha->isp_ops.load_risc = qla24xx_load_risc_flash;
5433383e 1408#endif
fca29703
AV		 1409 ha->isp_ops.pci_info_str = qla24xx_pci_info_str;
1410 ha->isp_ops.fw_version_str = qla24xx_fw_version_str;
1411 ha->isp_ops.intr_handler = qla24xx_intr_handler;
1412 ha->isp_ops.enable_intrs = qla24xx_enable_intrs;
1413 ha->isp_ops.disable_intrs = qla24xx_disable_intrs;
1414 ha->isp_ops.abort_command = qla24xx_abort_command;
1415 ha->isp_ops.abort_target = qla24xx_abort_target;
1416 ha->isp_ops.fabric_login = qla24xx_login_fabric;
1417 ha->isp_ops.fabric_logout = qla24xx_fabric_logout;
1418 ha->isp_ops.prep_ms_iocb = qla24xx_prep_ms_iocb;
cca5335c 1419 ha->isp_ops.prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb;
fca29703
AV		 1420 ha->isp_ops.read_nvram = qla24xx_read_nvram_data;
1421 ha->isp_ops.write_nvram = qla24xx_write_nvram_data;
1422 ha->isp_ops.fw_dump = qla24xx_fw_dump;
1423 ha->isp_ops.ascii_fw_dump = qla24xx_ascii_fw_dump;
854165f4 1424 ha->isp_ops.read_optrom = qla24xx_read_optrom_data;
1425 ha->isp_ops.write_optrom = qla24xx_write_optrom_data;
f6df144c 1426 ha->isp_ops.beacon_on = qla24xx_beacon_on;
1427 ha->isp_ops.beacon_off = qla24xx_beacon_off;
1428 ha->isp_ops.beacon_blink = qla24xx_beacon_blink;
fca29703 1429 ha->gid_list_info_size = 8;
854165f4 1430 ha->optrom_size = OPTROM_SIZE_24XX;
1da177e4
LT		 1431 }
1432 host->can_queue = ha->request_q_length + 128;
1433
1434 /* load the F/W, read paramaters, and init the H/W */
1435 ha->instance = num_hosts;
1436
1437 init_MUTEX(&ha->mbx_cmd_sem);
1438 init_MUTEX_LOCKED(&ha->mbx_intr_sem);
1439
1440 INIT_LIST_HEAD(&ha->list);
1441 INIT_LIST_HEAD(&ha->fcports);
1442 INIT_LIST_HEAD(&ha->rscn_fcports);
1da177e4
LT		 1443
1444 /*
1445 * These locks are used to prevent more than one CPU
1446 * from modifying the queue at the same time. The
1447 * higher level "host_lock" will reduce most
1448 * contention for these locks.
1449 */
1450 spin_lock_init(&ha->mbx_reg_lock);
1da177e4 1451
1da177e4
LT		 1452 init_completion(&ha->dpc_inited);
1453 init_completion(&ha->dpc_exited);
1454
1455 qla2x00_config_dma_addressing(ha);
1456 if (qla2x00_mem_alloc(ha)) {
1457 qla_printk(KERN_WARNING, ha,
1458 "[ERROR] Failed to allocate memory for adapter\n");
1459
a1541d5a
AV		 1460 ret = -ENOMEM;
1461 goto probe_failed;
1da177e4
LT		 1462 }
1463
1464 if (qla2x00_initialize_adapter(ha) &&
1465 !(ha->device_flags & DFLG_NO_CABLE)) {
1466
1467 qla_printk(KERN_WARNING, ha,
1468 "Failed to initialize adapter\n");
1469
1470 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
1471 "Adapter flags %x.\n",
1472 ha->host_no, ha->device_flags));
1473
a1541d5a 1474 ret = -ENODEV;
1da177e4
LT		 1475 goto probe_failed;
1476 }
1477
1478 /*
1479 * Startup the kernel thread for this host adapter
1480 */
1481 ha->dpc_should_die = 0;
1482 ha->dpc_pid = kernel_thread(qla2x00_do_dpc, ha, 0);
1483 if (ha->dpc_pid < 0) {
1484 qla_printk(KERN_WARNING, ha,
1485 "Unable to start DPC thread!\n");
1486
a1541d5a 1487 ret = -ENODEV;
1da177e4
LT		 1488 goto probe_failed;
1489 }
1490 wait_for_completion(&ha->dpc_inited);
1491
a1541d5a
AV		 1492 host->this_id = 255;
1493 host->cmd_per_lun = 3;
1494 host->unique_id = ha->instance;
1495 host->max_cmd_len = MAX_CMDSZ;
1496 host->max_channel = ha->ports - 1;
1497 host->max_lun = MAX_LUNS;
1498 host->transportt = qla2xxx_transport_template;
1499
fca29703 1500 ret = request_irq(pdev->irq, ha->isp_ops.intr_handler,
abbd8870 1501 SA_INTERRUPT|SA_SHIRQ, ha->brd_info->drv_name, ha);
a1541d5a 1502 if (ret) {
1da177e4
LT		 1503 qla_printk(KERN_WARNING, ha,
1504 "Failed to reserve interrupt %d already in use.\n",
fca29703 1505 pdev->irq);
1da177e4
LT		 1506 goto probe_failed;
1507 }
fca29703 1508 host->irq = pdev->irq;
1da177e4
LT		 1509
1510 /* Initialized the timer */
1511 qla2x00_start_timer(ha, qla2x00_timer, WATCH_INTERVAL);
1512
1513 DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
1514 ha->host_no, ha));
1515
abbd8870 1516 ha->isp_ops.disable_intrs(ha);
1da177e4 1517
1da177e4 1518 spin_lock_irqsave(&ha->hardware_lock, flags);
fca29703
AV		 1519 reg = ha->iobase;
1520 if (IS_QLA24XX(ha) || IS_QLA25XX(ha)) {
1521 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_HOST_INT);
1522 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_RISC_INT);
1523 } else {
1524 WRT_REG_WORD(&reg->isp.semaphore, 0);
1525 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_RISC_INT);
1526 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_HOST_INT);
1527
1528 /* Enable proper parity */
1529 if (!IS_QLA2100(ha) && !IS_QLA2200(ha)) {
1530 if (IS_QLA2300(ha))
1531 /* SRAM parity */
1532 WRT_REG_WORD(&reg->isp.hccr,
1533 (HCCR_ENABLE_PARITY + 0x1));
1534 else
1535 /* SRAM, Instruction RAM and GP RAM parity */
1536 WRT_REG_WORD(&reg->isp.hccr,
1537 (HCCR_ENABLE_PARITY + 0x7));
1538 }
1da177e4
LT		 1539 }
1540 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1541
abbd8870 1542 ha->isp_ops.enable_intrs(ha);
1da177e4
LT		 1543
1544 /* v2.19.5b6 */
1545 /*
1546 * Wait around max loop_reset_delay secs for the devices to come
1547 * on-line. We don't want Linux scanning before we are ready.
1548 *
1549 */
1550 for (wait_switch = jiffies + (ha->loop_reset_delay * HZ);
1551 time_before(jiffies,wait_switch) &&
1552 !(ha->device_flags & (DFLG_NO_CABLE | DFLG_FABRIC_DEVICES))
1553 && (ha->device_flags & SWITCH_FOUND) ;) {
1554
1555 qla2x00_check_fabric_devices(ha);
1556
1557 msleep(10);
1558 }
1559
a1541d5a 1560 pci_set_drvdata(pdev, ha);
1da177e4
LT		 1561 ha->flags.init_done = 1;
1562 num_hosts++;
1563
a1541d5a
AV		 1564 ret = scsi_add_host(host, &pdev->dev);
1565 if (ret)
1566 goto probe_failed;
1567
1568 qla2x00_alloc_sysfs_attr(ha);
1569
1570 qla2x00_init_host_attr(ha);
1571
1da177e4
LT		 1572 qla_printk(KERN_INFO, ha, "\n"
1573 " QLogic Fibre Channel HBA Driver: %s\n"
1574 " QLogic %s - %s\n"
5433383e
AV		 1575 " ISP%04X: %s @ %s hdma%c, host#=%ld, fw=%s\n",
1576 qla2x00_version_str, ha->model_number,
1577 ha->model_desc ? ha->model_desc: "", pdev->device,
1578 ha->isp_ops.pci_info_str(ha, pci_info), pci_name(pdev),
1579 ha->flags.enable_64bit_addressing ? '+': '-', ha->host_no,
1580 ha->isp_ops.fw_version_str(ha, fw_str));
1da177e4 1581
8482e118 1582 /* Go with fc_rport registration. */
1583 list_for_each_entry(fcport, &ha->fcports, list)
1584 qla2x00_reg_remote_port(ha, fcport);
1da177e4
LT		 1585
1586 return 0;
1587
1588probe_failed:
1589 qla2x00_free_device(ha);
1590
1591 scsi_host_put(host);
1592
1593probe_disable_device:
1594 pci_disable_device(pdev);
1595
a1541d5a
AV		 1596probe_out:
1597 return ret;
1da177e4
LT		 1598}
1599EXPORT_SYMBOL_GPL(qla2x00_probe_one);
1600
1601void qla2x00_remove_one(struct pci_dev *pdev)
1602{
1603 scsi_qla_host_t *ha;
1604
1605 ha = pci_get_drvdata(pdev);
1606
8482e118 1607 qla2x00_free_sysfs_attr(ha);
1da177e4 1608
bdf79621 1609 fc_remove_host(ha->host);
1610
1da177e4
LT		 1611 scsi_remove_host(ha->host);
1612
1613 qla2x00_free_device(ha);
1614
1615 scsi_host_put(ha->host);
1616
1617 pci_set_drvdata(pdev, NULL);
1618}
1619EXPORT_SYMBOL_GPL(qla2x00_remove_one);
1620
1621static void
1622qla2x00_free_device(scsi_qla_host_t *ha)
1623{
1624 int ret;
1625
1626 /* Abort any outstanding IO descriptors. */
1627 if (!IS_QLA2100(ha) && !IS_QLA2200(ha))
1628 qla2x00_cancel_io_descriptors(ha);
1629
1da177e4
LT		 1630 /* Disable timer */
1631 if (ha->timer_active)
1632 qla2x00_stop_timer(ha);
1633
1634 /* Kill the kernel thread for this host */
1635 if (ha->dpc_pid >= 0) {
1636 ha->dpc_should_die = 1;
1637 wmb();
1638 ret = kill_proc(ha->dpc_pid, SIGHUP, 1);
1639 if (ret) {
1640 qla_printk(KERN_ERR, ha,
1641 "Unable to signal DPC thread -- (%d)\n", ret);
1642
1643 /* TODO: SOMETHING MORE??? */
1644 } else {
1645 wait_for_completion(&ha->dpc_exited);
1646 }
1647 }
1648
f6ef3b18
AV		 1649 /* Stop currently executing firmware. */
1650 qla2x00_stop_firmware(ha);
1da177e4 1651
f6ef3b18
AV		 1652 /* turn-off interrupts on the card */
1653 if (ha->interrupts_on)
1654 ha->isp_ops.disable_intrs(ha);
1655
1656 qla2x00_mem_free(ha);
1da177e4
LT		 1657
1658 ha->flags.online = 0;
1659
1660 /* Detach interrupts */
1661 if (ha->pdev->irq)
1662 free_irq(ha->pdev->irq, ha);
1663
1664 /* release io space registers */
1665 if (ha->iobase)
1666 iounmap(ha->iobase);
1667 pci_release_regions(ha->pdev);
1668
1669 pci_disable_device(ha->pdev);
1670}
1671
d97994dc 1672static inline void
1673qla2x00_schedule_rport_del(struct scsi_qla_host *ha, fc_port_t *fcport,
1674 int defer)
1675{
1676 unsigned long flags;
1677 struct fc_rport *rport;
1678
1679 if (!fcport->rport)
1680 return;
1681
1682 rport = fcport->rport;
1683 if (defer) {
1684 spin_lock_irqsave(&fcport->rport_lock, flags);
1685 fcport->drport = rport;
1686 fcport->rport = NULL;
387f96b4 1687 *(fc_port_t **)rport->dd_data = NULL;
d97994dc 1688 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1689 set_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags);
1690 } else {
1691 spin_lock_irqsave(&fcport->rport_lock, flags);
1692 fcport->rport = NULL;
387f96b4 1693 *(fc_port_t **)rport->dd_data = NULL;
d97994dc 1694 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1695 fc_remote_port_delete(rport);
1696 }
1697}
1698
1da177e4
LT		 1699/*
1700 * qla2x00_mark_device_lost Updates fcport state when device goes offline.
1701 *
1702 * Input: ha = adapter block pointer. fcport = port structure pointer.
1703 *
1704 * Return: None.
1705 *
1706 * Context:
1707 */
1708void qla2x00_mark_device_lost(scsi_qla_host_t *ha, fc_port_t *fcport,
d97994dc 1709 int do_login, int defer)
1da177e4 1710{
d97994dc 1711 if (atomic_read(&fcport->state) == FCS_ONLINE)
1712 qla2x00_schedule_rport_del(ha, fcport, defer);
19a7b4ae 1713
fa2a1ce5 1714 /*
1da177e4
LT		 1715 * We may need to retry the login, so don't change the state of the
1716 * port but do the retries.
1717 */
1718 if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
1719 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1720
1721 if (!do_login)
1722 return;
1723
1724 if (fcport->login_retry == 0) {
1725 fcport->login_retry = ha->login_retry_count;
1726 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
1727
1728 DEBUG(printk("scsi(%ld): Port login retry: "
1729 "%02x%02x%02x%02x%02x%02x%02x%02x, "
1730 "id = 0x%04x retry cnt=%d\n",
1731 ha->host_no,
1732 fcport->port_name[0],
1733 fcport->port_name[1],
1734 fcport->port_name[2],
1735 fcport->port_name[3],
1736 fcport->port_name[4],
1737 fcport->port_name[5],
1738 fcport->port_name[6],
1739 fcport->port_name[7],
1740 fcport->loop_id,
1741 fcport->login_retry));
1742 }
1743}
1744
1745/*
1746 * qla2x00_mark_all_devices_lost
1747 * Updates fcport state when device goes offline.
1748 *
1749 * Input:
1750 * ha = adapter block pointer.
1751 * fcport = port structure pointer.
1752 *
1753 * Return:
1754 * None.
1755 *
1756 * Context:
1757 */
1758void
d97994dc 1759qla2x00_mark_all_devices_lost(scsi_qla_host_t *ha, int defer)
1da177e4
LT		 1760{
1761 fc_port_t *fcport;
1762
1763 list_for_each_entry(fcport, &ha->fcports, list) {
1764 if (fcport->port_type != FCT_TARGET)
1765 continue;
1766
1767 /*
1768 * No point in marking the device as lost, if the device is
1769 * already DEAD.
1770 */
1771 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
1772 continue;
d97994dc 1773 if (atomic_read(&fcport->state) == FCS_ONLINE)
1774 qla2x00_schedule_rport_del(ha, fcport, defer);
1da177e4
LT		 1775 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1776 }
d97994dc 1777
1778 if (defer && ha->dpc_wait && !ha->dpc_active)
1779 up(ha->dpc_wait);
1da177e4
LT		 1780}
1781
1782/*
1783* qla2x00_mem_alloc
1784* Allocates adapter memory.
1785*
1786* Returns:
1787* 0 = success.
1788* 1 = failure.
1789*/
1790static uint8_t
1791qla2x00_mem_alloc(scsi_qla_host_t *ha)
1792{
1793 char name[16];
1794 uint8_t status = 1;
1795 int retry= 10;
1796
1797 do {
1798 /*
1799 * This will loop only once if everything goes well, else some
1800 * number of retries will be performed to get around a kernel
1801 * bug where available mem is not allocated until after a
1802 * little delay and a retry.
1803 */
1804 ha->request_ring = dma_alloc_coherent(&ha->pdev->dev,
1805 (ha->request_q_length + 1) * sizeof(request_t),
1806 &ha->request_dma, GFP_KERNEL);
1807 if (ha->request_ring == NULL) {
1808 qla_printk(KERN_WARNING, ha,
1809 "Memory Allocation failed - request_ring\n");
1810
1811 qla2x00_mem_free(ha);
1812 msleep(100);
1813
1814 continue;
1815 }
1816
1817 ha->response_ring = dma_alloc_coherent(&ha->pdev->dev,
1818 (ha->response_q_length + 1) * sizeof(response_t),
1819 &ha->response_dma, GFP_KERNEL);
1820 if (ha->response_ring == NULL) {
1821 qla_printk(KERN_WARNING, ha,
1822 "Memory Allocation failed - response_ring\n");
1823
1824 qla2x00_mem_free(ha);
1825 msleep(100);
1826
1827 continue;
1828 }
1829
1830 ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
1831 &ha->gid_list_dma, GFP_KERNEL);
1832 if (ha->gid_list == NULL) {
1833 qla_printk(KERN_WARNING, ha,
1834 "Memory Allocation failed - gid_list\n");
1835
1836 qla2x00_mem_free(ha);
1837 msleep(100);
1838
1839 continue;
1840 }
1841
1842 ha->rlc_rsp = dma_alloc_coherent(&ha->pdev->dev,
1843 sizeof(rpt_lun_cmd_rsp_t), &ha->rlc_rsp_dma, GFP_KERNEL);
1844 if (ha->rlc_rsp == NULL) {
1845 qla_printk(KERN_WARNING, ha,
1846 "Memory Allocation failed - rlc");
1847
1848 qla2x00_mem_free(ha);
1849 msleep(100);
1850
1851 continue;
1852 }
1853
1854 snprintf(name, sizeof(name), "qla2xxx_%ld", ha->host_no);
1855 ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
1856 DMA_POOL_SIZE, 8, 0);
1857 if (ha->s_dma_pool == NULL) {
1858 qla_printk(KERN_WARNING, ha,
1859 "Memory Allocation failed - s_dma_pool\n");
1860
1861 qla2x00_mem_free(ha);
1862 msleep(100);
1863
1864 continue;
1865 }
1866
1867 /* get consistent memory allocated for init control block */
1868 ha->init_cb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
1869 &ha->init_cb_dma);
1870 if (ha->init_cb == NULL) {
1871 qla_printk(KERN_WARNING, ha,
1872 "Memory Allocation failed - init_cb\n");
1873
1874 qla2x00_mem_free(ha);
1875 msleep(100);
1876
1877 continue;
1878 }
fca29703 1879 memset(ha->init_cb, 0, ha->init_cb_size);
1da177e4
LT		 1880
1881 /* Get consistent memory allocated for Get Port Database cmd */
1882 ha->iodesc_pd = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
1883 &ha->iodesc_pd_dma);
1884 if (ha->iodesc_pd == NULL) {
1885 /* error */
1886 qla_printk(KERN_WARNING, ha,
1887 "Memory Allocation failed - iodesc_pd\n");
1888
1889 qla2x00_mem_free(ha);
1890 msleep(100);
1891
1892 continue;
1893 }
1894 memset(ha->iodesc_pd, 0, PORT_DATABASE_SIZE);
1895
1896 /* Allocate ioctl related memory. */
1897 if (qla2x00_alloc_ioctl_mem(ha)) {
1898 qla_printk(KERN_WARNING, ha,
1899 "Memory Allocation failed - ioctl_mem\n");
1900
1901 qla2x00_mem_free(ha);
1902 msleep(100);
1903
1904 continue;
1905 }
1906
1907 if (qla2x00_allocate_sp_pool(ha)) {
1908 qla_printk(KERN_WARNING, ha,
1909 "Memory Allocation failed - "
1910 "qla2x00_allocate_sp_pool()\n");
1911
1912 qla2x00_mem_free(ha);
1913 msleep(100);
1914
1915 continue;
1916 }
1917
1918 /* Allocate memory for SNS commands */
1919 if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
1920 /* Get consistent memory allocated for SNS commands */
1921 ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
1922 sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma,
1923 GFP_KERNEL);
1924 if (ha->sns_cmd == NULL) {
1925 /* error */
1926 qla_printk(KERN_WARNING, ha,
1927 "Memory Allocation failed - sns_cmd\n");
1928
1929 qla2x00_mem_free(ha);
1930 msleep(100);
1931
1932 continue;
1933 }
1934 memset(ha->sns_cmd, 0, sizeof(struct sns_cmd_pkt));
1935 } else {
1936 /* Get consistent memory allocated for MS IOCB */
1937 ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
1938 &ha->ms_iocb_dma);
1939 if (ha->ms_iocb == NULL) {
1940 /* error */
1941 qla_printk(KERN_WARNING, ha,
1942 "Memory Allocation failed - ms_iocb\n");
1943
1944 qla2x00_mem_free(ha);
1945 msleep(100);
1946
1947 continue;
1948 }
1949 memset(ha->ms_iocb, 0, sizeof(ms_iocb_entry_t));
1950
1951 /*
1952 * Get consistent memory allocated for CT SNS
1953 * commands
1954 */
1955 ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
1956 sizeof(struct ct_sns_pkt), &ha->ct_sns_dma,
1957 GFP_KERNEL);
1958 if (ha->ct_sns == NULL) {
1959 /* error */
1960 qla_printk(KERN_WARNING, ha,
1961 "Memory Allocation failed - ct_sns\n");
1962
1963 qla2x00_mem_free(ha);
1964 msleep(100);
1965
1966 continue;
1967 }
1968 memset(ha->ct_sns, 0, sizeof(struct ct_sns_pkt));
1969 }
1970
1971 /* Done all allocations without any error. */
1972 status = 0;
1973
1974 } while (retry-- && status != 0);
1975
1976 if (status) {
1977 printk(KERN_WARNING
1978 "%s(): **** FAILED ****\n", __func__);
1979 }
1980
1981 return(status);
1982}
1983
1984/*
1985* qla2x00_mem_free
1986* Frees all adapter allocated memory.
1987*
1988* Input:
1989* ha = adapter block pointer.
1990*/
1991static void
1992qla2x00_mem_free(scsi_qla_host_t *ha)
1993{
1da177e4
LT		 1994 struct list_head *fcpl, *fcptemp;
1995 fc_port_t *fcport;
fe74c71f 1996 unsigned int wtime;/* max wait time if mbx cmd is busy. */
1da177e4
LT		 1997
1998 if (ha == NULL) {
1999 /* error */
2000 DEBUG2(printk("%s(): ERROR invalid ha pointer.\n", __func__));
2001 return;
2002 }
2003
1da177e4 2004 /* Make sure all other threads are stopped. */
fe74c71f
AV		 2005 wtime = 60 * 1000;
2006 while (ha->dpc_wait && wtime)
2007 wtime = msleep_interruptible(wtime);
1da177e4
LT		 2008
2009 /* free ioctl memory */
2010 qla2x00_free_ioctl_mem(ha);
2011
2012 /* free sp pool */
2013 qla2x00_free_sp_pool(ha);
2014
2015 if (ha->sns_cmd)
2016 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
2017 ha->sns_cmd, ha->sns_cmd_dma);
2018
2019 if (ha->ct_sns)
2020 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2021 ha->ct_sns, ha->ct_sns_dma);
2022
2023 if (ha->ms_iocb)
2024 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2025
2026 if (ha->iodesc_pd)
2027 dma_pool_free(ha->s_dma_pool, ha->iodesc_pd, ha->iodesc_pd_dma);
2028
2029 if (ha->init_cb)
2030 dma_pool_free(ha->s_dma_pool, ha->init_cb, ha->init_cb_dma);
2031
2032 if (ha->s_dma_pool)
2033 dma_pool_destroy(ha->s_dma_pool);
2034
2035 if (ha->rlc_rsp)
2036 dma_free_coherent(&ha->pdev->dev,
2037 sizeof(rpt_lun_cmd_rsp_t), ha->rlc_rsp,
2038 ha->rlc_rsp_dma);
2039
2040 if (ha->gid_list)
2041 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2042 ha->gid_list_dma);
2043
2044 if (ha->response_ring)
2045 dma_free_coherent(&ha->pdev->dev,
2046 (ha->response_q_length + 1) * sizeof(response_t),
2047 ha->response_ring, ha->response_dma);
2048
2049 if (ha->request_ring)
2050 dma_free_coherent(&ha->pdev->dev,
2051 (ha->request_q_length + 1) * sizeof(request_t),
2052 ha->request_ring, ha->request_dma);
2053
2054 ha->sns_cmd = NULL;
2055 ha->sns_cmd_dma = 0;
2056 ha->ct_sns = NULL;
2057 ha->ct_sns_dma = 0;
2058 ha->ms_iocb = NULL;
2059 ha->ms_iocb_dma = 0;
2060 ha->iodesc_pd = NULL;
2061 ha->iodesc_pd_dma = 0;
2062 ha->init_cb = NULL;
2063 ha->init_cb_dma = 0;
2064
2065 ha->s_dma_pool = NULL;
2066
2067 ha->rlc_rsp = NULL;
2068 ha->rlc_rsp_dma = 0;
2069 ha->gid_list = NULL;
2070 ha->gid_list_dma = 0;
2071
2072 ha->response_ring = NULL;
2073 ha->response_dma = 0;
2074 ha->request_ring = NULL;
2075 ha->request_dma = 0;
2076
2077 list_for_each_safe(fcpl, fcptemp, &ha->fcports) {
2078 fcport = list_entry(fcpl, fc_port_t, list);
2079
1da177e4
LT		 2080 /* fc ports */
2081 list_del_init(&fcport->list);
2082 kfree(fcport);
2083 }
2084 INIT_LIST_HEAD(&ha->fcports);
2085
2086 if (ha->fw_dump)
2087 free_pages((unsigned long)ha->fw_dump, ha->fw_dump_order);
2088
fca29703
AV		 2089 vfree(ha->fw_dump24);
2090
2091 vfree(ha->fw_dump_buffer);
1da177e4
LT		 2092
2093 ha->fw_dump = NULL;
fca29703
AV		 2094 ha->fw_dump24 = NULL;
2095 ha->fw_dumped = 0;
1da177e4
LT		 2096 ha->fw_dump_reading = 0;
2097 ha->fw_dump_buffer = NULL;
854165f4 2098
2099 vfree(ha->optrom_buffer);
1da177e4
LT		 2100}
2101
2102/*
2103 * qla2x00_allocate_sp_pool
2104 * This routine is called during initialization to allocate
2105 * memory for local srb_t.
2106 *
2107 * Input:
2108 * ha = adapter block pointer.
2109 *
2110 * Context:
2111 * Kernel context.
fa2a1ce5 2112 *
1da177e4
LT		 2113 * Note: Sets the ref_count for non Null sp to one.
2114 */
2115static int
fa2a1ce5 2116qla2x00_allocate_sp_pool(scsi_qla_host_t *ha)
1da177e4
LT		 2117{
2118 int rval;
2119
2120 rval = QLA_SUCCESS;
2121 ha->srb_mempool = mempool_create(SRB_MIN_REQ, mempool_alloc_slab,
2122 mempool_free_slab, srb_cachep);
2123 if (ha->srb_mempool == NULL) {
2124 qla_printk(KERN_INFO, ha, "Unable to allocate SRB mempool.\n");
2125 rval = QLA_FUNCTION_FAILED;
2126 }
2127 return (rval);
2128}
2129
2130/*
2131 * This routine frees all adapter allocated memory.
fa2a1ce5 2132 *
1da177e4
LT		 2133 */
2134static void
fa2a1ce5 2135qla2x00_free_sp_pool( scsi_qla_host_t *ha)
1da177e4
LT		 2136{
2137 if (ha->srb_mempool) {
2138 mempool_destroy(ha->srb_mempool);
2139 ha->srb_mempool = NULL;
2140 }
2141}
2142
2143/**************************************************************************
2144* qla2x00_do_dpc
2145* This kernel thread is a task that is schedule by the interrupt handler
2146* to perform the background processing for interrupts.
2147*
2148* Notes:
2149* This task always run in the context of a kernel thread. It
2150* is kick-off by the driver's detect code and starts up
2151* up one per adapter. It immediately goes to sleep and waits for
2152* some fibre event. When either the interrupt handler or
2153* the timer routine detects a event it will one of the task
2154* bits then wake us up.
2155**************************************************************************/
2156static int
2157qla2x00_do_dpc(void *data)
2158{
2159 DECLARE_MUTEX_LOCKED(sem);
2160 scsi_qla_host_t *ha;
2161 fc_port_t *fcport;
1da177e4 2162 uint8_t status;
1da177e4 2163 uint16_t next_loopid;
1da177e4
LT		 2164
2165 ha = (scsi_qla_host_t *)data;
2166
2167 lock_kernel();
2168
2169 daemonize("%s_dpc", ha->host_str);
2170 allow_signal(SIGHUP);
2171
2172 ha->dpc_wait = &sem;
2173
2174 set_user_nice(current, -20);
2175
2176 unlock_kernel();
2177
2178 complete(&ha->dpc_inited);
2179
2180 while (1) {
2181 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
2182
2183 if (down_interruptible(&sem))
2184 break;
2185
2186 if (ha->dpc_should_die)
2187 break;
2188
2189 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
2190
2191 /* Initialization not yet finished. Don't do anything yet. */
2192 if (!ha->flags.init_done || ha->dpc_active)
2193 continue;
2194
2195 DEBUG3(printk("scsi(%ld): DPC handler\n", ha->host_no));
2196
2197 ha->dpc_active = 1;
2198
1da177e4 2199 if (ha->flags.mbox_busy) {
1da177e4
LT		 2200 ha->dpc_active = 0;
2201 continue;
2202 }
2203
2204 if (test_and_clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) {
2205
2206 DEBUG(printk("scsi(%ld): dpc: sched "
2207 "qla2x00_abort_isp ha = %p\n",
2208 ha->host_no, ha));
2209 if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
2210 &ha->dpc_flags))) {
2211
2212 if (qla2x00_abort_isp(ha)) {
2213 /* failed. retry later */
2214 set_bit(ISP_ABORT_NEEDED,
2215 &ha->dpc_flags);
2216 }
2217 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2218 }
2219 DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
2220 ha->host_no));
2221 }
2222
d97994dc 2223 if (test_and_clear_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags))
2224 qla2x00_update_fcports(ha);
2225
91ca7b01
AV		 2226 if (test_and_clear_bit(LOOP_RESET_NEEDED, &ha->dpc_flags)) {
2227 DEBUG(printk("scsi(%ld): dpc: sched loop_reset()\n",
2228 ha->host_no));
2229 qla2x00_loop_reset(ha);
2230 }
2231
1da177e4
LT		 2232 if (test_and_clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) &&
2233 (!(test_and_set_bit(RESET_ACTIVE, &ha->dpc_flags)))) {
2234
2235 DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
2236 ha->host_no));
2237
2238 qla2x00_rst_aen(ha);
2239 clear_bit(RESET_ACTIVE, &ha->dpc_flags);
2240 }
2241
2242 /* Retry each device up to login retry count */
2243 if ((test_and_clear_bit(RELOGIN_NEEDED, &ha->dpc_flags)) &&
2244 !test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) &&
2245 atomic_read(&ha->loop_state) != LOOP_DOWN) {
2246
2247 DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
2248 ha->host_no));
2249
2250 next_loopid = 0;
2251 list_for_each_entry(fcport, &ha->fcports, list) {
2252 if (fcport->port_type != FCT_TARGET)
2253 continue;
2254
2255 /*
2256 * If the port is not ONLINE then try to login
2257 * to it if we haven't run out of retries.
2258 */
2259 if (atomic_read(&fcport->state) != FCS_ONLINE &&
2260 fcport->login_retry) {
2261
2262 fcport->login_retry--;
2263 if (fcport->flags & FCF_FABRIC_DEVICE) {
2264 if (fcport->flags &
2265 FCF_TAPE_PRESENT)
abbd8870 2266 ha->isp_ops.fabric_logout(
1c7c6357
AV		 2267 ha, fcport->loop_id,
2268 fcport->d_id.b.domain,
2269 fcport->d_id.b.area,
2270 fcport->d_id.b.al_pa);
1da177e4
LT		 2271 status = qla2x00_fabric_login(
2272 ha, fcport, &next_loopid);
2273 } else
2274 status =
2275 qla2x00_local_device_login(
2276 ha, fcport->loop_id);
2277
2278 if (status == QLA_SUCCESS) {
2279 fcport->old_loop_id = fcport->loop_id;
2280
2281 DEBUG(printk("scsi(%ld): port login OK: logged in ID 0x%x\n",
2282 ha->host_no, fcport->loop_id));
fa2a1ce5 2283
052c40c8 2284 qla2x00_update_fcport(ha,
2285 fcport);
1da177e4
LT		 2286 } else if (status == 1) {
2287 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
2288 /* retry the login again */
2289 DEBUG(printk("scsi(%ld): Retrying %d login again loop_id 0x%x\n",
2290 ha->host_no,
2291 fcport->login_retry, fcport->loop_id));
2292 } else {
2293 fcport->login_retry = 0;
2294 }
2295 }
2296 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2297 break;
2298 }
2299 DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
2300 ha->host_no));
2301 }
2302
2303 if ((test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags)) &&
2304 atomic_read(&ha->loop_state) != LOOP_DOWN) {
2305
2306 clear_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags);
2307 DEBUG(printk("scsi(%ld): qla2x00_login_retry()\n",
2308 ha->host_no));
fa2a1ce5 2309
1da177e4
LT		 2310 set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
2311
2312 DEBUG(printk("scsi(%ld): qla2x00_login_retry - end\n",
2313 ha->host_no));
2314 }
2315
2316 if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
2317
2318 DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
2319 ha->host_no));
2320
2321 if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
2322 &ha->dpc_flags))) {
2323
2324 qla2x00_loop_resync(ha);
2325
2326 clear_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags);
2327 }
2328
2329 DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
2330 ha->host_no));
2331 }
2332
1da177e4
LT		 2333 if (test_and_clear_bit(FCPORT_RESCAN_NEEDED, &ha->dpc_flags)) {
2334
2335 DEBUG(printk("scsi(%ld): Rescan flagged fcports...\n",
2336 ha->host_no));
2337
2338 qla2x00_rescan_fcports(ha);
2339
2340 DEBUG(printk("scsi(%ld): Rescan flagged fcports..."
2341 "end.\n",
2342 ha->host_no));
2343 }
2344
1da177e4 2345 if (!ha->interrupts_on)
abbd8870 2346 ha->isp_ops.enable_intrs(ha);
1da177e4 2347
f6df144c 2348 if (test_and_clear_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags))
2349 ha->isp_ops.beacon_blink(ha);
2350
1da177e4
LT		 2351 ha->dpc_active = 0;
2352 } /* End of while(1) */
2353
2354 DEBUG(printk("scsi(%ld): DPC handler exiting\n", ha->host_no));
2355
2356 /*
2357 * Make sure that nobody tries to wake us up again.
2358 */
2359 ha->dpc_wait = NULL;
2360 ha->dpc_active = 0;
2361
2362 complete_and_exit(&ha->dpc_exited, 0);
2363}
2364
1da177e4
LT		 2365/*
2366* qla2x00_rst_aen
2367* Processes asynchronous reset.
2368*
2369* Input:
2370* ha = adapter block pointer.
2371*/
2372static void
fa2a1ce5 2373qla2x00_rst_aen(scsi_qla_host_t *ha)
1da177e4
LT		 2374{
2375 if (ha->flags.online && !ha->flags.reset_active &&
2376 !atomic_read(&ha->loop_down_timer) &&
2377 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) {
2378 do {
2379 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
2380
2381 /*
2382 * Issue marker command only when we are going to start
2383 * the I/O.
2384 */
2385 ha->marker_needed = 1;
2386 } while (!atomic_read(&ha->loop_down_timer) &&
2387 (test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags)));
2388 }
2389}
2390
f4f051eb 2391static void
2392qla2x00_sp_free_dma(scsi_qla_host_t *ha, srb_t *sp)
2393{
2394 struct scsi_cmnd *cmd = sp->cmd;
2395
2396 if (sp->flags & SRB_DMA_VALID) {
2397 if (cmd->use_sg) {
2398 dma_unmap_sg(&ha->pdev->dev, cmd->request_buffer,
2399 cmd->use_sg, cmd->sc_data_direction);
2400 } else if (cmd->request_bufflen) {
2401 dma_unmap_single(&ha->pdev->dev, sp->dma_handle,
2402 cmd->request_bufflen, cmd->sc_data_direction);
2403 }
2404 sp->flags &= ~SRB_DMA_VALID;
2405 }
fca29703 2406 CMD_SP(cmd) = NULL;
f4f051eb 2407}
2408
2409void
2410qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *sp)
2411{
2412 struct scsi_cmnd *cmd = sp->cmd;
2413
2414 qla2x00_sp_free_dma(ha, sp);
2415
f4f051eb 2416 mempool_free(sp, ha->srb_mempool);
2417
2418 cmd->scsi_done(cmd);
2419}
bdf79621 2420
1da177e4
LT		 2421/**************************************************************************
2422* qla2x00_timer
2423*
2424* Description:
2425* One second timer
2426*
2427* Context: Interrupt
2428***************************************************************************/
2429static void
2430qla2x00_timer(scsi_qla_host_t *ha)
2431{
1da177e4
LT		 2432 unsigned long cpu_flags = 0;
2433 fc_port_t *fcport;
1da177e4
LT		 2434 int start_dpc = 0;
2435 int index;
2436 srb_t *sp;
f4f051eb 2437 int t;
1da177e4
LT		 2438
2439 /*
2440 * Ports - Port down timer.
2441 *
2442 * Whenever, a port is in the LOST state we start decrementing its port
2443 * down timer every second until it reaches zero. Once it reaches zero
fa2a1ce5 2444 * the port it marked DEAD.
1da177e4
LT		 2445 */
2446 t = 0;
2447 list_for_each_entry(fcport, &ha->fcports, list) {
2448 if (fcport->port_type != FCT_TARGET)
2449 continue;
2450
2451 if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
2452
2453 if (atomic_read(&fcport->port_down_timer) == 0)
2454 continue;
2455
fa2a1ce5 2456 if (atomic_dec_and_test(&fcport->port_down_timer) != 0)
1da177e4 2457 atomic_set(&fcport->state, FCS_DEVICE_DEAD);
fa2a1ce5 2458
1da177e4 2459 DEBUG(printk("scsi(%ld): fcport-%d - port retry count: "
fca29703 2460 "%d remaining\n",
1da177e4
LT		 2461 ha->host_no,
2462 t, atomic_read(&fcport->port_down_timer)));
2463 }
2464 t++;
2465 } /* End of for fcport */
2466
1da177e4
LT		 2467
2468 /* Loop down handler. */
2469 if (atomic_read(&ha->loop_down_timer) > 0 &&
2470 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags)) && ha->flags.online) {
2471
2472 if (atomic_read(&ha->loop_down_timer) ==
2473 ha->loop_down_abort_time) {
2474
2475 DEBUG(printk("scsi(%ld): Loop Down - aborting the "
2476 "queues before time expire\n",
2477 ha->host_no));
2478
2479 if (!IS_QLA2100(ha) && ha->link_down_timeout)
fa2a1ce5 2480 atomic_set(&ha->loop_state, LOOP_DEAD);
1da177e4
LT		 2481
2482 /* Schedule an ISP abort to return any tape commands. */
2483 spin_lock_irqsave(&ha->hardware_lock, cpu_flags);
2484 for (index = 1; index < MAX_OUTSTANDING_COMMANDS;
2485 index++) {
bdf79621 2486 fc_port_t *sfcp;
2487
1da177e4
LT		 2488 sp = ha->outstanding_cmds[index];
2489 if (!sp)
2490 continue;
bdf79621 2491 sfcp = sp->fcport;
2492 if (!(sfcp->flags & FCF_TAPE_PRESENT))
1da177e4
LT		 2493 continue;
2494
2495 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2496 break;
2497 }
2498 spin_unlock_irqrestore(&ha->hardware_lock, cpu_flags);
2499
2500 set_bit(ABORT_QUEUES_NEEDED, &ha->dpc_flags);
2501 start_dpc++;
2502 }
2503
2504 /* if the loop has been down for 4 minutes, reinit adapter */
2505 if (atomic_dec_and_test(&ha->loop_down_timer) != 0) {
2506 DEBUG(printk("scsi(%ld): Loop down exceed 4 mins - "
2507 "restarting queues.\n",
2508 ha->host_no));
2509
2510 set_bit(RESTART_QUEUES_NEEDED, &ha->dpc_flags);
2511 start_dpc++;
2512
2513 if (!(ha->device_flags & DFLG_NO_CABLE)) {
2514 DEBUG(printk("scsi(%ld): Loop down - "
2515 "aborting ISP.\n",
2516 ha->host_no));
2517 qla_printk(KERN_WARNING, ha,
2518 "Loop down - aborting ISP.\n");
2519
2520 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2521 }
2522 }
fca29703 2523 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
1da177e4
LT		 2524 ha->host_no,
2525 atomic_read(&ha->loop_down_timer)));
2526 }
2527
f6df144c 2528 /* Check if beacon LED needs to be blinked */
2529 if (ha->beacon_blink_led == 1) {
2530 set_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags);
2531 start_dpc++;
2532 }
2533
1da177e4
LT		 2534 /* Schedule the DPC routine if needed */
2535 if ((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags) ||
2536 test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) ||
91ca7b01 2537 test_bit(LOOP_RESET_NEEDED, &ha->dpc_flags) ||
d97994dc 2538 test_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags) ||
1da177e4
LT		 2539 start_dpc ||
2540 test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags) ||
f4f051eb 2541 test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) ||
f6df144c 2542 test_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags) ||
1da177e4
LT		 2543 test_bit(RELOGIN_NEEDED, &ha->dpc_flags)) &&
2544 ha->dpc_wait && !ha->dpc_active) {
2545
2546 up(ha->dpc_wait);
2547 }
2548
2549 qla2x00_restart_timer(ha, WATCH_INTERVAL);
2550}
2551
1da177e4
LT		 2552/* XXX(hch): crude hack to emulate a down_timeout() */
2553int
2554qla2x00_down_timeout(struct semaphore *sema, unsigned long timeout)
2555{
fe74c71f
AV		 2556 const unsigned int step = 100; /* msecs */
2557 unsigned int iterations = jiffies_to_msecs(timeout)/100;
1da177e4
LT		 2558
2559 do {
2560 if (!down_trylock(sema))
2561 return 0;
fe74c71f 2562 if (msleep_interruptible(step))
1da177e4 2563 break;
fe74c71f 2564 } while (--iterations >= 0);
1da177e4
LT		 2565
2566 return -ETIMEDOUT;
2567}
2568
5433383e
AV		 2569#if defined(CONFIG_SCSI_QLA2XXX_EMBEDDED_FIRMWARE)
2570
2571#define qla2x00_release_firmware() do { } while (0)
331e3476
AV		 2572#define qla2x00_pci_module_init() (0)
2573#define qla2x00_pci_module_exit() do { } while (0)
fca29703 2574
5433383e
AV		 2575#else /* !defined(CONFIG_SCSI_QLA2XXX_EMBEDDED_FIRMWARE) */
2576
2577/* Firmware interface routines. */
2578
2579#define FW_BLOBS 6
2580#define FW_ISP21XX 0
2581#define FW_ISP22XX 1
2582#define FW_ISP2300 2
2583#define FW_ISP2322 3
2584#define FW_ISP63XX 4
2585#define FW_ISP24XX 5
2586
2587static DECLARE_MUTEX(qla_fw_lock);
2588
2589static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
2590 { .name = "ql2100_fw.bin", .segs = { 0x1000, 0 }, },
2591 { .name = "ql2200_fw.bin", .segs = { 0x1000, 0 }, },
2592 { .name = "ql2300_fw.bin", .segs = { 0x800, 0 }, },
2593 { .name = "ql2322_fw.bin", .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
2594 { .name = "ql6312_fw.bin", .segs = { 0x800, 0 }, },
2595 { .name = "ql2400_fw.bin", },
2596};
2597
2598struct fw_blob *
2599qla2x00_request_firmware(scsi_qla_host_t *ha)
2600{
2601 struct fw_blob *blob;
2602
2603 blob = NULL;
2604 if (IS_QLA2100(ha)) {
2605 blob = &qla_fw_blobs[FW_ISP21XX];
2606 } else if (IS_QLA2200(ha)) {
2607 blob = &qla_fw_blobs[FW_ISP22XX];
2608 } else if (IS_QLA2300(ha) || IS_QLA2312(ha)) {
2609 blob = &qla_fw_blobs[FW_ISP2300];
2610 } else if (IS_QLA2322(ha)) {
2611 blob = &qla_fw_blobs[FW_ISP2322];
2612 } else if (IS_QLA6312(ha) || IS_QLA6322(ha)) {
2613 blob = &qla_fw_blobs[FW_ISP63XX];
2614 } else if (IS_QLA24XX(ha)) {
2615 blob = &qla_fw_blobs[FW_ISP24XX];
2616 }
2617
2618 down(&qla_fw_lock);
2619 if (blob->fw)
2620 goto out;
2621
2622 if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
2623 DEBUG2(printk("scsi(%ld): Failed to load firmware image "
2624 "(%s).\n", ha->host_no, blob->name));
2625 blob->fw = NULL;
2626 blob = NULL;
2627 goto out;
2628 }
2629
2630out:
2631 up(&qla_fw_lock);
2632 return blob;
2633}
2634
2635static void
2636qla2x00_release_firmware(void)
2637{
2638 int idx;
2639
2640 down(&qla_fw_lock);
2641 for (idx = 0; idx < FW_BLOBS; idx++)
2642 if (qla_fw_blobs[idx].fw)
2643 release_firmware(qla_fw_blobs[idx].fw);
2644 up(&qla_fw_lock);
2645}
2646
2647static struct qla_board_info qla_board_tbl = {
2648 .drv_name = "qla2xxx",
2649};
2650
2651static struct pci_device_id qla2xxx_pci_tbl[] = {
2652 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100,
2653 PCI_ANY_ID, PCI_ANY_ID, },
2654 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200,
2655 PCI_ANY_ID, PCI_ANY_ID, },
2656 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300,
2657 PCI_ANY_ID, PCI_ANY_ID, },
2658 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312,
2659 PCI_ANY_ID, PCI_ANY_ID, },
2660 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322,
2661 PCI_ANY_ID, PCI_ANY_ID, },
2662 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312,
2663 PCI_ANY_ID, PCI_ANY_ID, },
2664 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322,
2665 PCI_ANY_ID, PCI_ANY_ID, },
2666 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422,
2667 PCI_ANY_ID, PCI_ANY_ID, },
2668 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432,
2669 PCI_ANY_ID, PCI_ANY_ID, },
2670 { 0 },
2671};
2672MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
2673
2674static int __devinit
2675qla2xxx_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
2676{
2677 return qla2x00_probe_one(pdev, &qla_board_tbl);
2678}
2679
2680static void __devexit
2681qla2xxx_remove_one(struct pci_dev *pdev)
2682{
2683 qla2x00_remove_one(pdev);
2684}
2685
fca29703
AV		 2686static struct pci_driver qla2xxx_pci_driver = {
2687 .name = "qla2xxx",
0a21ef1e
JB		 2688 .driver = {
2689 .owner = THIS_MODULE,
2690 },
fca29703
AV		 2691 .id_table = qla2xxx_pci_tbl,
2692 .probe = qla2xxx_probe_one,
2693 .remove = __devexit_p(qla2xxx_remove_one),
2694};
2695
331e3476
AV		 2696static inline int
2697qla2x00_pci_module_init(void)
2698{
2699 return pci_module_init(&qla2xxx_pci_driver);
2700}
2701
2702static inline void
2703qla2x00_pci_module_exit(void)
2704{
2705 pci_unregister_driver(&qla2xxx_pci_driver);
2706}
2707
2708#endif
2709
1da177e4
LT		 2710/**
2711 * qla2x00_module_init - Module initialization.
2712 **/
2713static int __init
2714qla2x00_module_init(void)
2715{
fca29703
AV		 2716 int ret = 0;
2717
1da177e4 2718 /* Allocate cache for SRBs. */
354d6b21 2719 srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
1da177e4
LT		 2720 SLAB_HWCACHE_ALIGN, NULL, NULL);
2721 if (srb_cachep == NULL) {
2722 printk(KERN_ERR
2723 "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
2724 return -ENOMEM;
2725 }
2726
2727 /* Derive version string. */
2728 strcpy(qla2x00_version_str, QLA2XXX_VERSION);
5433383e
AV		 2729#if defined(CONFIG_SCSI_QLA2XXX_EMBEDDED_FIRMWARE)
2730 strcat(qla2x00_version_str, "-fw");
2731#endif
1da177e4
LT		 2732#if DEBUG_QLA2100
2733 strcat(qla2x00_version_str, "-debug");
2734#endif
1c97a12a
AV		 2735 qla2xxx_transport_template =
2736 fc_attach_transport(&qla2xxx_transport_functions);
1da177e4
LT		 2737 if (!qla2xxx_transport_template)
2738 return -ENODEV;
2739
2740 printk(KERN_INFO "QLogic Fibre Channel HBA Driver\n");
331e3476 2741 ret = qla2x00_pci_module_init();
fca29703
AV		 2742 if (ret) {
2743 kmem_cache_destroy(srb_cachep);
2744 fc_release_transport(qla2xxx_transport_template);
2745 }
2746 return ret;
1da177e4
LT		 2747}
2748
2749/**
2750 * qla2x00_module_exit - Module cleanup.
2751 **/
2752static void __exit
2753qla2x00_module_exit(void)
2754{
331e3476 2755 qla2x00_pci_module_exit();
5433383e 2756 qla2x00_release_firmware();
354d6b21 2757 kmem_cache_destroy(srb_cachep);
1da177e4
LT		 2758 fc_release_transport(qla2xxx_transport_template);
2759}
2760
2761module_init(qla2x00_module_init);
2762module_exit(qla2x00_module_exit);
2763
2764MODULE_AUTHOR("QLogic Corporation");
2765MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
2766MODULE_LICENSE("GPL");
2767MODULE_VERSION(QLA2XXX_VERSION);
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