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[SCSI] qla2xxx: Remove unused port-type RSCN handling code.
[mirror_ubuntu-bionic-kernel.git] / drivers / scsi / qla2xxx / qla_os.c
CommitLineData
1da177e4 1/*
fa90c54f
AV		 2 * QLogic Fibre Channel HBA Driver
3 * Copyright (c) 2003-2005 QLogic Corporation
1da177e4 4 *
fa90c54f 5 * See LICENSE.qla2xxx for copyright and licensing details.
1da177e4
LT		 6 */
7#include "qla_def.h"
8
9#include <linux/moduleparam.h>
10#include <linux/vmalloc.h>
1da177e4 11#include <linux/delay.h>
39a11240 12#include <linux/kthread.h>
1da177e4
LT		 13
14#include <scsi/scsi_tcq.h>
15#include <scsi/scsicam.h>
16#include <scsi/scsi_transport.h>
17#include <scsi/scsi_transport_fc.h>
18
19/*
20 * Driver version
21 */
22char qla2x00_version_str[40];
23
24/*
25 * SRB allocation cache
26 */
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
1da177e4 74/*
fa2a1ce5 75 * SCSI host template entry points
1da177e4
LT		 76 */
77static int qla2xxx_slave_configure(struct scsi_device * device);
f4f051eb
AV		 78static int qla2xxx_slave_alloc(struct scsi_device *);
79static void qla2xxx_slave_destroy(struct scsi_device *);
1da177e4
LT		 80static int qla2x00_queuecommand(struct scsi_cmnd *cmd,
81 void (*fn)(struct scsi_cmnd *));
fca29703
AV		 82static int qla24xx_queuecommand(struct scsi_cmnd *cmd,
83 void (*fn)(struct scsi_cmnd *));
1da177e4
LT		 84static int qla2xxx_eh_abort(struct scsi_cmnd *);
85static int qla2xxx_eh_device_reset(struct scsi_cmnd *);
86static int qla2xxx_eh_bus_reset(struct scsi_cmnd *);
87static int qla2xxx_eh_host_reset(struct scsi_cmnd *);
88static int qla2x00_loop_reset(scsi_qla_host_t *ha);
89static int qla2x00_device_reset(scsi_qla_host_t *, fc_port_t *);
90
ce7e4af7
AV		 91static int qla2x00_change_queue_depth(struct scsi_device *, int);
92static int qla2x00_change_queue_type(struct scsi_device *, int);
93
1da177e4
LT		 94static struct scsi_host_template qla2x00_driver_template = {
95 .module = THIS_MODULE,
96 .name = "qla2xxx",
1da177e4
LT		 97 .queuecommand = qla2x00_queuecommand,
98
99 .eh_abort_handler = qla2xxx_eh_abort,
100 .eh_device_reset_handler = qla2xxx_eh_device_reset,
101 .eh_bus_reset_handler = qla2xxx_eh_bus_reset,
102 .eh_host_reset_handler = qla2xxx_eh_host_reset,
103
104 .slave_configure = qla2xxx_slave_configure,
105
f4f051eb
AV		 106 .slave_alloc = qla2xxx_slave_alloc,
107 .slave_destroy = qla2xxx_slave_destroy,
ce7e4af7
AV		 108 .change_queue_depth = qla2x00_change_queue_depth,
109 .change_queue_type = qla2x00_change_queue_type,
1da177e4
LT		 110 .this_id = -1,
111 .cmd_per_lun = 3,
112 .use_clustering = ENABLE_CLUSTERING,
113 .sg_tablesize = SG_ALL,
114
115 /*
116 * The RISC allows for each command to transfer (2^32-1) bytes of data,
117 * which equates to 0x800000 sectors.
118 */
119 .max_sectors = 0xFFFF,
afb046e2 120 .shost_attrs = qla2x00_host_attrs,
1da177e4
LT		 121};
122
fca29703
AV		 123static struct scsi_host_template qla24xx_driver_template = {
124 .module = THIS_MODULE,
125 .name = "qla2xxx",
126 .queuecommand = qla24xx_queuecommand,
127
128 .eh_abort_handler = qla2xxx_eh_abort,
129 .eh_device_reset_handler = qla2xxx_eh_device_reset,
130 .eh_bus_reset_handler = qla2xxx_eh_bus_reset,
131 .eh_host_reset_handler = qla2xxx_eh_host_reset,
132
133 .slave_configure = qla2xxx_slave_configure,
134
135 .slave_alloc = qla2xxx_slave_alloc,
136 .slave_destroy = qla2xxx_slave_destroy,
ce7e4af7
AV		 137 .change_queue_depth = qla2x00_change_queue_depth,
138 .change_queue_type = qla2x00_change_queue_type,
fca29703
AV		 139 .this_id = -1,
140 .cmd_per_lun = 3,
141 .use_clustering = ENABLE_CLUSTERING,
142 .sg_tablesize = SG_ALL,
143
144 .max_sectors = 0xFFFF,
afb046e2 145 .shost_attrs = qla2x00_host_attrs,
fca29703
AV		 146};
147
1da177e4
LT		 148static struct scsi_transport_template *qla2xxx_transport_template = NULL;
149
1da177e4
LT		 150/* TODO Convert to inlines
151 *
152 * Timer routines
153 */
154#define WATCH_INTERVAL 1 /* number of seconds */
155
156static void qla2x00_timer(scsi_qla_host_t *);
157
158static __inline__ void qla2x00_start_timer(scsi_qla_host_t *,
159 void *, unsigned long);
160static __inline__ void qla2x00_restart_timer(scsi_qla_host_t *, unsigned long);
161static __inline__ void qla2x00_stop_timer(scsi_qla_host_t *);
162
163static inline void
164qla2x00_start_timer(scsi_qla_host_t *ha, void *func, unsigned long interval)
165{
166 init_timer(&ha->timer);
167 ha->timer.expires = jiffies + interval * HZ;
168 ha->timer.data = (unsigned long)ha;
169 ha->timer.function = (void (*)(unsigned long))func;
170 add_timer(&ha->timer);
171 ha->timer_active = 1;
172}
173
174static inline void
175qla2x00_restart_timer(scsi_qla_host_t *ha, unsigned long interval)
176{
177 mod_timer(&ha->timer, jiffies + interval * HZ);
178}
179
180static __inline__ void
181qla2x00_stop_timer(scsi_qla_host_t *ha)
182{
183 del_timer_sync(&ha->timer);
184 ha->timer_active = 0;
185}
186
1da177e4
LT		 187static int qla2x00_do_dpc(void *data);
188
189static void qla2x00_rst_aen(scsi_qla_host_t *);
190
191static uint8_t qla2x00_mem_alloc(scsi_qla_host_t *);
192static void qla2x00_mem_free(scsi_qla_host_t *ha);
193static int qla2x00_allocate_sp_pool( scsi_qla_host_t *ha);
194static void qla2x00_free_sp_pool(scsi_qla_host_t *ha);
f4f051eb
AV		 195static void qla2x00_sp_free_dma(scsi_qla_host_t *, srb_t *);
196void qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *);
1da177e4 197
1da177e4
LT		 198/* -------------------------------------------------------------------------- */
199
1da177e4 200static char *
abbd8870 201qla2x00_pci_info_str(struct scsi_qla_host *ha, char *str)
1da177e4
LT		 202{
203 static char *pci_bus_modes[] = {
204 "33", "66", "100", "133",
205 };
206 uint16_t pci_bus;
207
208 strcpy(str, "PCI");
209 pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
210 if (pci_bus) {
211 strcat(str, "-X (");
212 strcat(str, pci_bus_modes[pci_bus]);
213 } else {
214 pci_bus = (ha->pci_attr & BIT_8) >> 8;
215 strcat(str, " (");
216 strcat(str, pci_bus_modes[pci_bus]);
217 }
218 strcat(str, " MHz)");
219
220 return (str);
221}
222
fca29703
AV		 223static char *
224qla24xx_pci_info_str(struct scsi_qla_host *ha, char *str)
225{
226 static char *pci_bus_modes[] = { "33", "66", "100", "133", };
227 uint32_t pci_bus;
228 int pcie_reg;
229
230 pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
231 if (pcie_reg) {
232 char lwstr[6];
233 uint16_t pcie_lstat, lspeed, lwidth;
234
235 pcie_reg += 0x12;
236 pci_read_config_word(ha->pdev, pcie_reg, &pcie_lstat);
237 lspeed = pcie_lstat & (BIT_0 | BIT_1 | BIT_2 | BIT_3);
238 lwidth = (pcie_lstat &
239 (BIT_4 | BIT_5 | BIT_6 | BIT_7 | BIT_8 | BIT_9)) >> 4;
240
241 strcpy(str, "PCIe (");
242 if (lspeed == 1)
243 strcat(str, "2.5Gb/s ");
244 else
245 strcat(str, "<unknown> ");
246 snprintf(lwstr, sizeof(lwstr), "x%d)", lwidth);
247 strcat(str, lwstr);
248
249 return str;
250 }
251
252 strcpy(str, "PCI");
253 pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
254 if (pci_bus == 0 || pci_bus == 8) {
255 strcat(str, " (");
256 strcat(str, pci_bus_modes[pci_bus >> 3]);
257 } else {
258 strcat(str, "-X ");
259 if (pci_bus & BIT_2)
260 strcat(str, "Mode 2");
261 else
262 strcat(str, "Mode 1");
263 strcat(str, " (");
264 strcat(str, pci_bus_modes[pci_bus & ~BIT_2]);
265 }
266 strcat(str, " MHz)");
267
268 return str;
269}
270
1da177e4 271char *
abbd8870 272qla2x00_fw_version_str(struct scsi_qla_host *ha, char *str)
1da177e4
LT		 273{
274 char un_str[10];
fa2a1ce5 275
1da177e4
LT		 276 sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
277 ha->fw_minor_version,
278 ha->fw_subminor_version);
279
280 if (ha->fw_attributes & BIT_9) {
281 strcat(str, "FLX");
282 return (str);
283 }
284
285 switch (ha->fw_attributes & 0xFF) {
286 case 0x7:
287 strcat(str, "EF");
288 break;
289 case 0x17:
290 strcat(str, "TP");
291 break;
292 case 0x37:
293 strcat(str, "IP");
294 break;
295 case 0x77:
296 strcat(str, "VI");
297 break;
298 default:
299 sprintf(un_str, "(%x)", ha->fw_attributes);
300 strcat(str, un_str);
301 break;
302 }
303 if (ha->fw_attributes & 0x100)
304 strcat(str, "X");
305
306 return (str);
307}
308
fca29703
AV		 309char *
310qla24xx_fw_version_str(struct scsi_qla_host *ha, char *str)
311{
f0883ac6
AV		 312 sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
313 ha->fw_minor_version,
314 ha->fw_subminor_version);
315
fca29703
AV		 316 if (ha->fw_attributes & BIT_0)
317 strcat(str, "[Class 2] ");
318 if (ha->fw_attributes & BIT_1)
319 strcat(str, "[IP] ");
320 if (ha->fw_attributes & BIT_2)
321 strcat(str, "[Multi-ID] ");
322 if (ha->fw_attributes & BIT_13)
323 strcat(str, "[Experimental]");
324 return str;
fca29703
AV		 325}
326
327static inline srb_t *
328qla2x00_get_new_sp(scsi_qla_host_t *ha, fc_port_t *fcport,
329 struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
330{
331 srb_t *sp;
332
333 sp = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
334 if (!sp)
335 return sp;
336
fca29703
AV		 337 sp->ha = ha;
338 sp->fcport = fcport;
339 sp->cmd = cmd;
340 sp->flags = 0;
341 CMD_SP(cmd) = (void *)sp;
342 cmd->scsi_done = done;
343
344 return sp;
345}
346
1da177e4 347static int
f4f051eb 348qla2x00_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
1da177e4 349{
f4f051eb 350 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
bdf79621 351 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
19a7b4ae 352 struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
f4f051eb
AV		 353 srb_t *sp;
354 int rval;
1da177e4 355
19a7b4ae
JSEC		 356 rval = fc_remote_port_chkready(rport);
357 if (rval) {
358 cmd->result = rval;
f4f051eb
AV		 359 goto qc_fail_command;
360 }
1da177e4 361
387f96b4
AV		 362 /* Close window on fcport/rport state-transitioning. */
363 if (!*(fc_port_t **)rport->dd_data) {
364 cmd->result = DID_IMM_RETRY << 16;
365 goto qc_fail_command;
366 }
367
f4f051eb
AV		 368 if (atomic_read(&fcport->state) != FCS_ONLINE) {
369 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
370 atomic_read(&ha->loop_state) == LOOP_DEAD) {
371 cmd->result = DID_NO_CONNECT << 16;
372 goto qc_fail_command;
373 }
374 goto qc_host_busy;
375 }
1da177e4
LT		 376
377 spin_unlock_irq(ha->host->host_lock);
378
fca29703
AV		 379 sp = qla2x00_get_new_sp(ha, fcport, cmd, done);
380 if (!sp)
f4f051eb 381 goto qc_host_busy_lock;
1da177e4 382
f4f051eb
AV		 383 rval = qla2x00_start_scsi(sp);
384 if (rval != QLA_SUCCESS)
385 goto qc_host_busy_free_sp;
1da177e4 386
f4f051eb 387 spin_lock_irq(ha->host->host_lock);
1da177e4 388
f4f051eb 389 return 0;
1da177e4 390
f4f051eb
AV		 391qc_host_busy_free_sp:
392 qla2x00_sp_free_dma(ha, sp);
f4f051eb 393 mempool_free(sp, ha->srb_mempool);
1da177e4 394
f4f051eb
AV		 395qc_host_busy_lock:
396 spin_lock_irq(ha->host->host_lock);
1da177e4 397
f4f051eb
AV		 398qc_host_busy:
399 return SCSI_MLQUEUE_HOST_BUSY;
1da177e4 400
f4f051eb
AV		 401qc_fail_command:
402 done(cmd);
1da177e4 403
f4f051eb 404 return 0;
1da177e4
LT		 405}
406
fca29703
AV		 407
408static int
409qla24xx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
410{
411 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
412 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
19a7b4ae 413 struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
fca29703
AV		 414 srb_t *sp;
415 int rval;
416
19a7b4ae
JSEC		 417 rval = fc_remote_port_chkready(rport);
418 if (rval) {
419 cmd->result = rval;
fca29703
AV		 420 goto qc24_fail_command;
421 }
422
387f96b4
AV		 423 /* Close window on fcport/rport state-transitioning. */
424 if (!*(fc_port_t **)rport->dd_data) {
425 cmd->result = DID_IMM_RETRY << 16;
426 goto qc24_fail_command;
427 }
428
fca29703
AV		 429 if (atomic_read(&fcport->state) != FCS_ONLINE) {
430 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
431 atomic_read(&ha->loop_state) == LOOP_DEAD) {
432 cmd->result = DID_NO_CONNECT << 16;
433 goto qc24_fail_command;
434 }
435 goto qc24_host_busy;
436 }
437
438 spin_unlock_irq(ha->host->host_lock);
439
440 sp = qla2x00_get_new_sp(ha, fcport, cmd, done);
441 if (!sp)
442 goto qc24_host_busy_lock;
443
444 rval = qla24xx_start_scsi(sp);
445 if (rval != QLA_SUCCESS)
446 goto qc24_host_busy_free_sp;
447
448 spin_lock_irq(ha->host->host_lock);
449
450 return 0;
451
452qc24_host_busy_free_sp:
453 qla2x00_sp_free_dma(ha, sp);
454 mempool_free(sp, ha->srb_mempool);
455
456qc24_host_busy_lock:
457 spin_lock_irq(ha->host->host_lock);
458
459qc24_host_busy:
460 return SCSI_MLQUEUE_HOST_BUSY;
461
462qc24_fail_command:
463 done(cmd);
464
465 return 0;
466}
467
468
1da177e4
LT		 469/*
470 * qla2x00_eh_wait_on_command
471 * Waits for the command to be returned by the Firmware for some
472 * max time.
473 *
474 * Input:
475 * ha = actual ha whose done queue will contain the command
476 * returned by firmware.
477 * cmd = Scsi Command to wait on.
478 * flag = Abort/Reset(Bus or Device Reset)
479 *
480 * Return:
481 * Not Found : 0
482 * Found : 1
483 */
484static int
485qla2x00_eh_wait_on_command(scsi_qla_host_t *ha, struct scsi_cmnd *cmd)
486{
fe74c71f
AV		 487#define ABORT_POLLING_PERIOD 1000
488#define ABORT_WAIT_ITER ((10 * 1000) / (ABORT_POLLING_PERIOD))
f4f051eb
AV		 489 unsigned long wait_iter = ABORT_WAIT_ITER;
490 int ret = QLA_SUCCESS;
1da177e4 491
f4f051eb 492 while (CMD_SP(cmd)) {
fe74c71f 493 msleep(ABORT_POLLING_PERIOD);
1da177e4 494
f4f051eb
AV		 495 if (--wait_iter)
496 break;
497 }
498 if (CMD_SP(cmd))
499 ret = QLA_FUNCTION_FAILED;
1da177e4 500
f4f051eb 501 return ret;
1da177e4
LT		 502}
503
504/*
505 * qla2x00_wait_for_hba_online
fa2a1ce5 506 * Wait till the HBA is online after going through
1da177e4
LT		 507 * <= MAX_RETRIES_OF_ISP_ABORT or
508 * finally HBA is disabled ie marked offline
509 *
510 * Input:
511 * ha - pointer to host adapter structure
fa2a1ce5
AV		 512 *
513 * Note:
1da177e4
LT		 514 * Does context switching-Release SPIN_LOCK
515 * (if any) before calling this routine.
516 *
517 * Return:
518 * Success (Adapter is online) : 0
519 * Failed (Adapter is offline/disabled) : 1
520 */
854165f4 521int
1da177e4
LT		 522qla2x00_wait_for_hba_online(scsi_qla_host_t *ha)
523{
fca29703
AV		 524 int return_status;
525 unsigned long wait_online;
1da177e4 526
fa2a1ce5 527 wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
1da177e4
LT		 528 while (((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) ||
529 test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags) ||
530 test_bit(ISP_ABORT_RETRY, &ha->dpc_flags) ||
531 ha->dpc_active) && time_before(jiffies, wait_online)) {
532
533 msleep(1000);
534 }
fa2a1ce5
AV		 535 if (ha->flags.online)
536 return_status = QLA_SUCCESS;
1da177e4
LT		 537 else
538 return_status = QLA_FUNCTION_FAILED;
539
540 DEBUG2(printk("%s return_status=%d\n",__func__,return_status));
541
542 return (return_status);
543}
544
545/*
546 * qla2x00_wait_for_loop_ready
547 * Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
fa2a1ce5 548 * to be in LOOP_READY state.
1da177e4
LT		 549 * Input:
550 * ha - pointer to host adapter structure
fa2a1ce5
AV		 551 *
552 * Note:
1da177e4
LT		 553 * Does context switching-Release SPIN_LOCK
554 * (if any) before calling this routine.
fa2a1ce5 555 *
1da177e4
LT		 556 *
557 * Return:
558 * Success (LOOP_READY) : 0
559 * Failed (LOOP_NOT_READY) : 1
560 */
fa2a1ce5 561static inline int
1da177e4
LT		 562qla2x00_wait_for_loop_ready(scsi_qla_host_t *ha)
563{
564 int return_status = QLA_SUCCESS;
565 unsigned long loop_timeout ;
566
567 /* wait for 5 min at the max for loop to be ready */
fa2a1ce5 568 loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ);
1da177e4
LT		 569
570 while ((!atomic_read(&ha->loop_down_timer) &&
571 atomic_read(&ha->loop_state) == LOOP_DOWN) ||
1da177e4 572 atomic_read(&ha->loop_state) != LOOP_READY) {
57680080
RA		 573 if (atomic_read(&ha->loop_state) == LOOP_DEAD) {
574 return_status = QLA_FUNCTION_FAILED;
575 break;
576 }
1da177e4
LT		 577 msleep(1000);
578 if (time_after_eq(jiffies, loop_timeout)) {
579 return_status = QLA_FUNCTION_FAILED;
580 break;
581 }
582 }
fa2a1ce5 583 return (return_status);
1da177e4
LT		 584}
585
586/**************************************************************************
587* qla2xxx_eh_abort
588*
589* Description:
590* The abort function will abort the specified command.
591*
592* Input:
593* cmd = Linux SCSI command packet to be aborted.
594*
595* Returns:
596* Either SUCCESS or FAILED.
597*
598* Note:
599**************************************************************************/
600int
601qla2xxx_eh_abort(struct scsi_cmnd *cmd)
602{
f4f051eb
AV		 603 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
604 srb_t *sp;
605 int ret, i;
606 unsigned int id, lun;
607 unsigned long serial;
18e144d3 608 unsigned long flags;
1da177e4 609
f4f051eb
AV		 610 if (!CMD_SP(cmd))
611 return FAILED;
1da177e4 612
f4f051eb 613 ret = FAILED;
1da177e4 614
f4f051eb
AV		 615 id = cmd->device->id;
616 lun = cmd->device->lun;
617 serial = cmd->serial_number;
1da177e4 618
f4f051eb 619 /* Check active list for command command. */
18e144d3 620 spin_lock_irqsave(&ha->hardware_lock, flags);
f4f051eb
AV		 621 for (i = 1; i < MAX_OUTSTANDING_COMMANDS; i++) {
622 sp = ha->outstanding_cmds[i];
1da177e4 623
f4f051eb
AV		 624 if (sp == NULL)
625 continue;
1da177e4 626
f4f051eb
AV		 627 if (sp->cmd != cmd)
628 continue;
1da177e4 629
75bc4190
AV		 630 DEBUG2(printk("%s(%ld): aborting sp %p from RISC. pid=%ld.\n",
631 __func__, ha->host_no, sp, serial));
f4f051eb 632 DEBUG3(qla2x00_print_scsi_cmd(cmd);)
1da177e4 633
18e144d3 634 spin_unlock_irqrestore(&ha->hardware_lock, flags);
abbd8870 635 if (ha->isp_ops.abort_command(ha, sp)) {
f4f051eb
AV		 636 DEBUG2(printk("%s(%ld): abort_command "
637 "mbx failed.\n", __func__, ha->host_no));
638 } else {
639 DEBUG3(printk("%s(%ld): abort_command "
640 "mbx success.\n", __func__, ha->host_no));
641 ret = SUCCESS;
642 }
18e144d3 643 spin_lock_irqsave(&ha->hardware_lock, flags);
1da177e4 644
f4f051eb
AV		 645 break;
646 }
18e144d3 647 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1da177e4 648
f4f051eb
AV		 649 /* Wait for the command to be returned. */
650 if (ret == SUCCESS) {
f4f051eb 651 if (qla2x00_eh_wait_on_command(ha, cmd) != QLA_SUCCESS) {
fa2a1ce5 652 qla_printk(KERN_ERR, ha,
f4f051eb
AV		 653 "scsi(%ld:%d:%d): Abort handler timed out -- %lx "
654 "%x.\n", ha->host_no, id, lun, serial, ret);
655 }
1da177e4 656 }
1da177e4 657
fa2a1ce5 658 qla_printk(KERN_INFO, ha,
f4f051eb
AV		 659 "scsi(%ld:%d:%d): Abort command issued -- %lx %x.\n", ha->host_no,
660 id, lun, serial, ret);
1da177e4 661
f4f051eb
AV		 662 return ret;
663}
1da177e4 664
f4f051eb
AV		 665/**************************************************************************
666* qla2x00_eh_wait_for_pending_target_commands
667*
668* Description:
669* Waits for all the commands to come back from the specified target.
670*
671* Input:
672* ha - pointer to scsi_qla_host structure.
fa2a1ce5 673* t - target
f4f051eb
AV		 674* Returns:
675* Either SUCCESS or FAILED.
676*
677* Note:
678**************************************************************************/
679static int
680qla2x00_eh_wait_for_pending_target_commands(scsi_qla_host_t *ha, unsigned int t)
681{
682 int cnt;
683 int status;
684 srb_t *sp;
685 struct scsi_cmnd *cmd;
18e144d3 686 unsigned long flags;
1da177e4 687
f4f051eb 688 status = 0;
1da177e4
LT		 689
690 /*
f4f051eb
AV		 691 * Waiting for all commands for the designated target in the active
692 * array
1da177e4
LT		 693 */
694 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
18e144d3 695 spin_lock_irqsave(&ha->hardware_lock, flags);
1da177e4
LT		 696 sp = ha->outstanding_cmds[cnt];
697 if (sp) {
698 cmd = sp->cmd;
18e144d3 699 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1da177e4
LT		 700 if (cmd->device->id == t) {
701 if (!qla2x00_eh_wait_on_command(ha, cmd)) {
702 status = 1;
703 break;
704 }
705 }
f4f051eb 706 } else {
18e144d3 707 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1da177e4
LT		 708 }
709 }
710 return (status);
711}
712
713
714/**************************************************************************
715* qla2xxx_eh_device_reset
716*
717* Description:
718* The device reset function will reset the target and abort any
719* executing commands.
720*
721* NOTE: The use of SP is undefined within this context. Do *NOT*
fa2a1ce5 722* attempt to use this value, even if you determine it is
1da177e4
LT		 723* non-null.
724*
725* Input:
726* cmd = Linux SCSI command packet of the command that cause the
727* bus device reset.
728*
729* Returns:
730* SUCCESS/FAILURE (defined as macro in scsi.h).
731*
732**************************************************************************/
733int
734qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
735{
f4f051eb 736 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
bdf79621 737 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
f4f051eb
AV		 738 srb_t *sp;
739 int ret;
740 unsigned int id, lun;
741 unsigned long serial;
1da177e4 742
f4f051eb 743 ret = FAILED;
1da177e4 744
f4f051eb
AV		 745 id = cmd->device->id;
746 lun = cmd->device->lun;
747 serial = cmd->serial_number;
1da177e4 748
f4f051eb 749 sp = (srb_t *) CMD_SP(cmd);
bdf79621 750 if (!sp || !fcport)
f4f051eb 751 return ret;
1da177e4
LT		 752
753 qla_printk(KERN_INFO, ha,
f4f051eb 754 "scsi(%ld:%d:%d): DEVICE RESET ISSUED.\n", ha->host_no, id, lun);
1da177e4 755
94d0e7b8 756 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
1da177e4 757 goto eh_dev_reset_done;
1da177e4
LT		 758
759 if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
f4f051eb
AV		 760 if (qla2x00_device_reset(ha, fcport) == 0)
761 ret = SUCCESS;
1da177e4
LT		 762
763#if defined(LOGOUT_AFTER_DEVICE_RESET)
f4f051eb
AV		 764 if (ret == SUCCESS) {
765 if (fcport->flags & FC_FABRIC_DEVICE) {
abbd8870 766 ha->isp_ops.fabric_logout(ha, fcport->loop_id);
d97994dc 767 qla2x00_mark_device_lost(ha, fcport, 0, 0);
1da177e4
LT		 768 }
769 }
770#endif
771 } else {
772 DEBUG2(printk(KERN_INFO
773 "%s failed: loop not ready\n",__func__);)
774 }
775
f4f051eb 776 if (ret == FAILED) {
1da177e4
LT		 777 DEBUG3(printk("%s(%ld): device reset failed\n",
778 __func__, ha->host_no));
779 qla_printk(KERN_INFO, ha, "%s: device reset failed\n",
780 __func__);
781
782 goto eh_dev_reset_done;
783 }
784
9a41a62b
AV		 785 /* Flush outstanding commands. */
786 if (qla2x00_eh_wait_for_pending_target_commands(ha, id))
787 ret = FAILED;
788 if (ret == FAILED) {
789 DEBUG3(printk("%s(%ld): failed while waiting for commands\n",
790 __func__, ha->host_no));
791 qla_printk(KERN_INFO, ha,
792 "%s: failed while waiting for commands\n", __func__);
793 } else
794 qla_printk(KERN_INFO, ha,
795 "scsi(%ld:%d:%d): DEVICE RESET SUCCEEDED.\n", ha->host_no,
796 id, lun);
28f22b03 797 eh_dev_reset_done:
f4f051eb 798 return ret;
1da177e4
LT		 799}
800
801/**************************************************************************
802* qla2x00_eh_wait_for_pending_commands
803*
804* Description:
805* Waits for all the commands to come back from the specified host.
806*
807* Input:
808* ha - pointer to scsi_qla_host structure.
809*
810* Returns:
811* 1 : SUCCESS
812* 0 : FAILED
813*
814* Note:
815**************************************************************************/
816static int
817qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *ha)
818{
819 int cnt;
820 int status;
821 srb_t *sp;
822 struct scsi_cmnd *cmd;
18e144d3 823 unsigned long flags;
1da177e4
LT		 824
825 status = 1;
826
827 /*
828 * Waiting for all commands for the designated target in the active
829 * array
830 */
831 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
18e144d3 832 spin_lock_irqsave(&ha->hardware_lock, flags);
1da177e4
LT		 833 sp = ha->outstanding_cmds[cnt];
834 if (sp) {
835 cmd = sp->cmd;
18e144d3 836 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1da177e4
LT		 837 status = qla2x00_eh_wait_on_command(ha, cmd);
838 if (status == 0)
839 break;
840 }
841 else {
18e144d3 842 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1da177e4
LT		 843 }
844 }
845 return (status);
846}
847
848
849/**************************************************************************
850* qla2xxx_eh_bus_reset
851*
852* Description:
853* The bus reset function will reset the bus and abort any executing
854* commands.
855*
856* Input:
857* cmd = Linux SCSI command packet of the command that cause the
858* bus reset.
859*
860* Returns:
861* SUCCESS/FAILURE (defined as macro in scsi.h).
862*
863**************************************************************************/
864int
865qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
866{
f4f051eb 867 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
bdf79621 868 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
1da177e4 869 srb_t *sp;
f4f051eb
AV		 870 int ret;
871 unsigned int id, lun;
872 unsigned long serial;
873
874 ret = FAILED;
875
876 id = cmd->device->id;
877 lun = cmd->device->lun;
878 serial = cmd->serial_number;
1da177e4 879
1da177e4 880 sp = (srb_t *) CMD_SP(cmd);
bdf79621 881 if (!sp || !fcport)
f4f051eb 882 return ret;
1da177e4
LT		 883
884 qla_printk(KERN_INFO, ha,
f4f051eb 885 "scsi(%ld:%d:%d): LOOP RESET ISSUED.\n", ha->host_no, id, lun);
1da177e4 886
1da177e4
LT		 887 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS) {
888 DEBUG2(printk("%s failed:board disabled\n",__func__));
f4f051eb 889 goto eh_bus_reset_done;
1da177e4
LT		 890 }
891
892 if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
f4f051eb
AV		 893 if (qla2x00_loop_reset(ha) == QLA_SUCCESS)
894 ret = SUCCESS;
1da177e4 895 }
f4f051eb
AV		 896 if (ret == FAILED)
897 goto eh_bus_reset_done;
1da177e4 898
9a41a62b
AV		 899 /* Flush outstanding commands. */
900 if (!qla2x00_eh_wait_for_pending_commands(ha))
901 ret = FAILED;
1da177e4 902
f4f051eb 903eh_bus_reset_done:
1da177e4 904 qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
f4f051eb 905 (ret == FAILED) ? "failed" : "succeded");
1da177e4 906
f4f051eb 907 return ret;
1da177e4
LT		 908}
909
910/**************************************************************************
911* qla2xxx_eh_host_reset
912*
913* Description:
914* The reset function will reset the Adapter.
915*
916* Input:
917* cmd = Linux SCSI command packet of the command that cause the
918* adapter reset.
919*
920* Returns:
921* Either SUCCESS or FAILED.
922*
923* Note:
924**************************************************************************/
925int
926qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
927{
f4f051eb 928 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
bdf79621 929 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
f4f051eb
AV		 930 srb_t *sp;
931 int ret;
932 unsigned int id, lun;
933 unsigned long serial;
1da177e4 934
f4f051eb
AV		 935 ret = FAILED;
936
937 id = cmd->device->id;
938 lun = cmd->device->lun;
939 serial = cmd->serial_number;
940
941 sp = (srb_t *) CMD_SP(cmd);
bdf79621 942 if (!sp || !fcport)
f4f051eb 943 return ret;
1da177e4 944
1da177e4 945 qla_printk(KERN_INFO, ha,
f4f051eb 946 "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", ha->host_no, id, lun);
1da177e4 947
1da177e4 948 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
f4f051eb 949 goto eh_host_reset_lock;
1da177e4
LT		 950
951 /*
952 * Fixme-may be dpc thread is active and processing
fa2a1ce5 953 * loop_resync,so wait a while for it to
1da177e4
LT		 954 * be completed and then issue big hammer.Otherwise
955 * it may cause I/O failure as big hammer marks the
956 * devices as lost kicking of the port_down_timer
957 * while dpc is stuck for the mailbox to complete.
958 */
1da177e4
LT		 959 qla2x00_wait_for_loop_ready(ha);
960 set_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
961 if (qla2x00_abort_isp(ha)) {
962 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
963 /* failed. schedule dpc to try */
964 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
965
966 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
f4f051eb 967 goto eh_host_reset_lock;
fa2a1ce5 968 }
1da177e4
LT		 969 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
970
1da177e4 971 /* Waiting for our command in done_queue to be returned to OS.*/
f4f051eb
AV		 972 if (qla2x00_eh_wait_for_pending_commands(ha))
973 ret = SUCCESS;
1da177e4 974
f4f051eb 975eh_host_reset_lock:
f4f051eb
AV		 976 qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
977 (ret == FAILED) ? "failed" : "succeded");
1da177e4 978
f4f051eb
AV		 979 return ret;
980}
1da177e4
LT		 981
982/*
983* qla2x00_loop_reset
984* Issue loop reset.
985*
986* Input:
987* ha = adapter block pointer.
988*
989* Returns:
990* 0 = success
991*/
992static int
993qla2x00_loop_reset(scsi_qla_host_t *ha)
994{
995 int status = QLA_SUCCESS;
bdf79621 996 struct fc_port *fcport;
1da177e4
LT		 997
998 if (ha->flags.enable_lip_reset) {
999 status = qla2x00_lip_reset(ha);
1000 }
1001
1002 if (status == QLA_SUCCESS && ha->flags.enable_target_reset) {
bdf79621
AV		 1003 list_for_each_entry(fcport, &ha->fcports, list) {
1004 if (fcport->port_type != FCT_TARGET)
1da177e4
LT		 1005 continue;
1006
c00c72ae 1007 status = qla2x00_device_reset(ha, fcport);
bdf79621 1008 if (status != QLA_SUCCESS)
1da177e4 1009 break;
1da177e4
LT		 1010 }
1011 }
1012
1013 if (status == QLA_SUCCESS &&
fa2a1ce5 1014 ((!ha->flags.enable_target_reset &&
1da177e4
LT		 1015 !ha->flags.enable_lip_reset) ||
1016 ha->flags.enable_lip_full_login)) {
1017
1018 status = qla2x00_full_login_lip(ha);
1019 }
1020
1021 /* Issue marker command only when we are going to start the I/O */
1022 ha->marker_needed = 1;
1023
1024 if (status) {
1025 /* Empty */
1026 DEBUG2_3(printk("%s(%ld): **** FAILED ****\n",
1027 __func__,
1028 ha->host_no);)
1029 } else {
1030 /* Empty */
1031 DEBUG3(printk("%s(%ld): exiting normally.\n",
1032 __func__,
1033 ha->host_no);)
1034 }
1035
1036 return(status);
1037}
1038
1039/*
1040 * qla2x00_device_reset
1041 * Issue bus device reset message to the target.
1042 *
1043 * Input:
1044 * ha = adapter block pointer.
1045 * t = SCSI ID.
1046 * TARGET_QUEUE_LOCK must be released.
1047 * ADAPTER_STATE_LOCK must be released.
1048 *
1049 * Context:
1050 * Kernel context.
1051 */
1052static int
1053qla2x00_device_reset(scsi_qla_host_t *ha, fc_port_t *reset_fcport)
1054{
1055 /* Abort Target command will clear Reservation */
abbd8870 1056 return ha->isp_ops.abort_target(reset_fcport);
1da177e4
LT		 1057}
1058
f4f051eb
AV		 1059static int
1060qla2xxx_slave_alloc(struct scsi_device *sdev)
1da177e4 1061{
bdf79621 1062 struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1da177e4 1063
19a7b4ae 1064 if (!rport || fc_remote_port_chkready(rport))
f4f051eb 1065 return -ENXIO;
bdf79621 1066
19a7b4ae 1067 sdev->hostdata = *(fc_port_t **)rport->dd_data;
1da177e4 1068
f4f051eb
AV		 1069 return 0;
1070}
1da177e4 1071
f4f051eb
AV		 1072static int
1073qla2xxx_slave_configure(struct scsi_device *sdev)
1074{
8482e118
AV		 1075 scsi_qla_host_t *ha = to_qla_host(sdev->host);
1076 struct fc_rport *rport = starget_to_rport(sdev->sdev_target);
1077
f4f051eb
AV		 1078 if (sdev->tagged_supported)
1079 scsi_activate_tcq(sdev, 32);
1080 else
1081 scsi_deactivate_tcq(sdev, 32);
1da177e4 1082
8482e118
AV		 1083 rport->dev_loss_tmo = ha->port_down_retry_count + 5;
1084
f4f051eb
AV		 1085 return 0;
1086}
1da177e4 1087
f4f051eb
AV		 1088static void
1089qla2xxx_slave_destroy(struct scsi_device *sdev)
1090{
1091 sdev->hostdata = NULL;
1da177e4
LT		 1092}
1093
ce7e4af7
AV		 1094static int
1095qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth)
1096{
1097 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1098 return sdev->queue_depth;
1099}
1100
1101static int
1102qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1103{
1104 if (sdev->tagged_supported) {
1105 scsi_set_tag_type(sdev, tag_type);
1106 if (tag_type)
1107 scsi_activate_tcq(sdev, sdev->queue_depth);
1108 else
1109 scsi_deactivate_tcq(sdev, sdev->queue_depth);
1110 } else
1111 tag_type = 0;
1112
1113 return tag_type;
1114}
1115
1da177e4
LT		 1116/**
1117 * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1118 * @ha: HA context
1119 *
1120 * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1121 * supported addressing method.
1122 */
1123static void
1124qla2x00_config_dma_addressing(scsi_qla_host_t *ha)
1125{
7524f9b9 1126 /* Assume a 32bit DMA mask. */
1da177e4 1127 ha->flags.enable_64bit_addressing = 0;
1da177e4 1128
7524f9b9
AV		 1129 if (!dma_set_mask(&ha->pdev->dev, DMA_64BIT_MASK)) {
1130 /* Any upper-dword bits set? */
1131 if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1132 !pci_set_consistent_dma_mask(ha->pdev, DMA_64BIT_MASK)) {
1133 /* Ok, a 64bit DMA mask is applicable. */
1da177e4 1134 ha->flags.enable_64bit_addressing = 1;
abbd8870
AV		 1135 ha->isp_ops.calc_req_entries = qla2x00_calc_iocbs_64;
1136 ha->isp_ops.build_iocbs = qla2x00_build_scsi_iocbs_64;
7524f9b9 1137 return;
1da177e4 1138 }
1da177e4 1139 }
7524f9b9
AV		 1140
1141 dma_set_mask(&ha->pdev->dev, DMA_32BIT_MASK);
1142 pci_set_consistent_dma_mask(ha->pdev, DMA_32BIT_MASK);
1da177e4
LT		 1143}
1144
ea5b6382
AV		 1145static inline void
1146qla2x00_set_isp_flags(scsi_qla_host_t *ha)
1147{
1148 ha->device_type = DT_EXTENDED_IDS;
1149 switch (ha->pdev->device) {
1150 case PCI_DEVICE_ID_QLOGIC_ISP2100:
1151 ha->device_type |= DT_ISP2100;
1152 ha->device_type &= ~DT_EXTENDED_IDS;
1153 break;
1154 case PCI_DEVICE_ID_QLOGIC_ISP2200:
1155 ha->device_type |= DT_ISP2200;
1156 ha->device_type &= ~DT_EXTENDED_IDS;
1157 break;
1158 case PCI_DEVICE_ID_QLOGIC_ISP2300:
1159 ha->device_type |= DT_ISP2300;
4a59f71d 1160 ha->device_type |= DT_ZIO_SUPPORTED;
ea5b6382
AV		 1161 break;
1162 case PCI_DEVICE_ID_QLOGIC_ISP2312:
1163 ha->device_type |= DT_ISP2312;
4a59f71d 1164 ha->device_type |= DT_ZIO_SUPPORTED;
ea5b6382
AV		 1165 break;
1166 case PCI_DEVICE_ID_QLOGIC_ISP2322:
1167 ha->device_type |= DT_ISP2322;
4a59f71d 1168 ha->device_type |= DT_ZIO_SUPPORTED;
ea5b6382
AV		 1169 if (ha->pdev->subsystem_vendor == 0x1028 &&
1170 ha->pdev->subsystem_device == 0x0170)
1171 ha->device_type |= DT_OEM_001;
1172 break;
1173 case PCI_DEVICE_ID_QLOGIC_ISP6312:
1174 ha->device_type |= DT_ISP6312;
1175 break;
1176 case PCI_DEVICE_ID_QLOGIC_ISP6322:
1177 ha->device_type |= DT_ISP6322;
1178 break;
1179 case PCI_DEVICE_ID_QLOGIC_ISP2422:
1180 ha->device_type |= DT_ISP2422;
4a59f71d 1181 ha->device_type |= DT_ZIO_SUPPORTED;
ea5b6382
AV		 1182 break;
1183 case PCI_DEVICE_ID_QLOGIC_ISP2432:
1184 ha->device_type |= DT_ISP2432;
4a59f71d 1185 ha->device_type |= DT_ZIO_SUPPORTED;
ea5b6382 1186 break;
044cc6c8
AV		 1187 case PCI_DEVICE_ID_QLOGIC_ISP5422:
1188 ha->device_type |= DT_ISP5422;
ea5b6382 1189 break;
044cc6c8
AV		 1190 case PCI_DEVICE_ID_QLOGIC_ISP5432:
1191 ha->device_type |= DT_ISP5432;
ea5b6382
AV		 1192 break;
1193 }
1194}
1195
1da177e4
LT		 1196static int
1197qla2x00_iospace_config(scsi_qla_host_t *ha)
1198{
1199 unsigned long pio, pio_len, pio_flags;
1200 unsigned long mmio, mmio_len, mmio_flags;
1201
1202 /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1203 pio = pci_resource_start(ha->pdev, 0);
1204 pio_len = pci_resource_len(ha->pdev, 0);
1205 pio_flags = pci_resource_flags(ha->pdev, 0);
1206 if (pio_flags & IORESOURCE_IO) {
1207 if (pio_len < MIN_IOBASE_LEN) {
1208 qla_printk(KERN_WARNING, ha,
1209 "Invalid PCI I/O region size (%s)...\n",
1210 pci_name(ha->pdev));
1211 pio = 0;
1212 }
1213 } else {
1214 qla_printk(KERN_WARNING, ha,
1215 "region #0 not a PIO resource (%s)...\n",
1216 pci_name(ha->pdev));
1217 pio = 0;
1218 }
1219
1220 /* Use MMIO operations for all accesses. */
1221 mmio = pci_resource_start(ha->pdev, 1);
1222 mmio_len = pci_resource_len(ha->pdev, 1);
1223 mmio_flags = pci_resource_flags(ha->pdev, 1);
1224
1225 if (!(mmio_flags & IORESOURCE_MEM)) {
1226 qla_printk(KERN_ERR, ha,
1227 "region #0 not an MMIO resource (%s), aborting\n",
1228 pci_name(ha->pdev));
1229 goto iospace_error_exit;
1230 }
1231 if (mmio_len < MIN_IOBASE_LEN) {
1232 qla_printk(KERN_ERR, ha,
1233 "Invalid PCI mem region size (%s), aborting\n",
1234 pci_name(ha->pdev));
1235 goto iospace_error_exit;
1236 }
1237
1238 if (pci_request_regions(ha->pdev, ha->brd_info->drv_name)) {
1239 qla_printk(KERN_WARNING, ha,
1240 "Failed to reserve PIO/MMIO regions (%s)\n",
1241 pci_name(ha->pdev));
1242
1243 goto iospace_error_exit;
1244 }
1245
1246 ha->pio_address = pio;
1247 ha->pio_length = pio_len;
1248 ha->iobase = ioremap(mmio, MIN_IOBASE_LEN);
1249 if (!ha->iobase) {
1250 qla_printk(KERN_ERR, ha,
1251 "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
1252
1253 goto iospace_error_exit;
1254 }
1255
1256 return (0);
1257
1258iospace_error_exit:
1259 return (-ENOMEM);
1260}
1261
abbd8870
AV		 1262static void
1263qla2x00_enable_intrs(scsi_qla_host_t *ha)
1264{
1265 unsigned long flags = 0;
3d71644c 1266 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
abbd8870
AV		 1267
1268 spin_lock_irqsave(&ha->hardware_lock, flags);
1269 ha->interrupts_on = 1;
1270 /* enable risc and host interrupts */
1271 WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1272 RD_REG_WORD(&reg->ictrl);
1273 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1274
1275}
1276
1277static void
1278qla2x00_disable_intrs(scsi_qla_host_t *ha)
1279{
1280 unsigned long flags = 0;
3d71644c 1281 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
abbd8870
AV		 1282
1283 spin_lock_irqsave(&ha->hardware_lock, flags);
1284 ha->interrupts_on = 0;
1285 /* disable risc and host interrupts */
1286 WRT_REG_WORD(&reg->ictrl, 0);
1287 RD_REG_WORD(&reg->ictrl);
1288 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1289}
1290
fca29703
AV		 1291static void
1292qla24xx_enable_intrs(scsi_qla_host_t *ha)
1293{
1294 unsigned long flags = 0;
1295 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1296
1297 spin_lock_irqsave(&ha->hardware_lock, flags);
1298 ha->interrupts_on = 1;
1299 WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1300 RD_REG_DWORD(&reg->ictrl);
1301 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1302}
1303
1304static void
1305qla24xx_disable_intrs(scsi_qla_host_t *ha)
1306{
1307 unsigned long flags = 0;
1308 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1309
1310 spin_lock_irqsave(&ha->hardware_lock, flags);
1311 ha->interrupts_on = 0;
1312 WRT_REG_DWORD(&reg->ictrl, 0);
1313 RD_REG_DWORD(&reg->ictrl);
1314 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1315}
1316
1da177e4
LT		 1317/*
1318 * PCI driver interface
1319 */
1320int qla2x00_probe_one(struct pci_dev *pdev, struct qla_board_info *brd_info)
1321{
a1541d5a 1322 int ret = -ENODEV;
fca29703 1323 device_reg_t __iomem *reg;
1da177e4
LT		 1324 struct Scsi_Host *host;
1325 scsi_qla_host_t *ha;
1326 unsigned long flags = 0;
1327 unsigned long wait_switch = 0;
1328 char pci_info[20];
1329 char fw_str[30];
8482e118 1330 fc_port_t *fcport;
5433383e 1331 struct scsi_host_template *sht;
1da177e4
LT		 1332
1333 if (pci_enable_device(pdev))
a1541d5a 1334 goto probe_out;
1da177e4 1335
5433383e
AV		 1336 sht = &qla2x00_driver_template;
1337 if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
1338 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432)
1339 sht = &qla24xx_driver_template;
1340 host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
1da177e4
LT		 1341 if (host == NULL) {
1342 printk(KERN_WARNING
1343 "qla2xxx: Couldn't allocate host from scsi layer!\n");
1344 goto probe_disable_device;
1345 }
1346
1347 /* Clear our data area */
1348 ha = (scsi_qla_host_t *)host->hostdata;
1349 memset(ha, 0, sizeof(scsi_qla_host_t));
1350
1351 ha->pdev = pdev;
1352 ha->host = host;
1353 ha->host_no = host->host_no;
1354 ha->brd_info = brd_info;
1355 sprintf(ha->host_str, "%s_%ld", ha->brd_info->drv_name, ha->host_no);
1356
ea5b6382
AV		 1357 /* Set ISP-type information. */
1358 qla2x00_set_isp_flags(ha);
1359
1da177e4
LT		 1360 /* Configure PCI I/O space */
1361 ret = qla2x00_iospace_config(ha);
a1541d5a
AV		 1362 if (ret)
1363 goto probe_failed;
1da177e4 1364
1da177e4 1365 qla_printk(KERN_INFO, ha,
5433383e
AV		 1366 "Found an ISP%04X, irq %d, iobase 0x%p\n", pdev->device, pdev->irq,
1367 ha->iobase);
1da177e4
LT		 1368
1369 spin_lock_init(&ha->hardware_lock);
1370
1da177e4 1371 ha->prev_topology = 0;
fca29703 1372 ha->init_cb_size = sizeof(init_cb_t);
cca5335c 1373 ha->mgmt_svr_loop_id = MANAGEMENT_SERVER;
04414013 1374 ha->link_data_rate = LDR_UNKNOWN;
854165f4 1375 ha->optrom_size = OPTROM_SIZE_2300;
1da177e4 1376
abbd8870
AV		 1377 /* Assign ISP specific operations. */
1378 ha->isp_ops.pci_config = qla2100_pci_config;
1379 ha->isp_ops.reset_chip = qla2x00_reset_chip;
1380 ha->isp_ops.chip_diag = qla2x00_chip_diag;
1381 ha->isp_ops.config_rings = qla2x00_config_rings;
1382 ha->isp_ops.reset_adapter = qla2x00_reset_adapter;
1383 ha->isp_ops.nvram_config = qla2x00_nvram_config;
1384 ha->isp_ops.update_fw_options = qla2x00_update_fw_options;
0107109e 1385 ha->isp_ops.load_risc = qla2x00_load_risc;
abbd8870
AV		 1386 ha->isp_ops.pci_info_str = qla2x00_pci_info_str;
1387 ha->isp_ops.fw_version_str = qla2x00_fw_version_str;
1388 ha->isp_ops.intr_handler = qla2100_intr_handler;
1389 ha->isp_ops.enable_intrs = qla2x00_enable_intrs;
1390 ha->isp_ops.disable_intrs = qla2x00_disable_intrs;
1391 ha->isp_ops.abort_command = qla2x00_abort_command;
1392 ha->isp_ops.abort_target = qla2x00_abort_target;
1393 ha->isp_ops.fabric_login = qla2x00_login_fabric;
1394 ha->isp_ops.fabric_logout = qla2x00_fabric_logout;
1395 ha->isp_ops.calc_req_entries = qla2x00_calc_iocbs_32;
1396 ha->isp_ops.build_iocbs = qla2x00_build_scsi_iocbs_32;
1397 ha->isp_ops.prep_ms_iocb = qla2x00_prep_ms_iocb;
cca5335c 1398 ha->isp_ops.prep_ms_fdmi_iocb = qla2x00_prep_ms_fdmi_iocb;
459c5378
AV		 1399 ha->isp_ops.read_nvram = qla2x00_read_nvram_data;
1400 ha->isp_ops.write_nvram = qla2x00_write_nvram_data;
abbd8870
AV		 1401 ha->isp_ops.fw_dump = qla2100_fw_dump;
1402 ha->isp_ops.ascii_fw_dump = qla2100_ascii_fw_dump;
854165f4
AV		 1403 ha->isp_ops.read_optrom = qla2x00_read_optrom_data;
1404 ha->isp_ops.write_optrom = qla2x00_write_optrom_data;
1da177e4 1405 if (IS_QLA2100(ha)) {
354d6b21 1406 host->max_id = MAX_TARGETS_2100;
1da177e4
LT		 1407 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
1408 ha->request_q_length = REQUEST_ENTRY_CNT_2100;
1409 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1410 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1411 host->sg_tablesize = 32;
abbd8870 1412 ha->gid_list_info_size = 4;
1da177e4 1413 } else if (IS_QLA2200(ha)) {
354d6b21 1414 host->max_id = MAX_TARGETS_2200;
1da177e4
LT		 1415 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1416 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1417 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1418 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
abbd8870 1419 ha->gid_list_info_size = 4;
fca29703 1420 } else if (IS_QLA23XX(ha)) {
354d6b21 1421 host->max_id = MAX_TARGETS_2200;
1da177e4
LT		 1422 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1423 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1424 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1425 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
abbd8870
AV		 1426 ha->isp_ops.pci_config = qla2300_pci_config;
1427 ha->isp_ops.intr_handler = qla2300_intr_handler;
1428 ha->isp_ops.fw_dump = qla2300_fw_dump;
1429 ha->isp_ops.ascii_fw_dump = qla2300_ascii_fw_dump;
f6df144c
AV		 1430 ha->isp_ops.beacon_on = qla2x00_beacon_on;
1431 ha->isp_ops.beacon_off = qla2x00_beacon_off;
1432 ha->isp_ops.beacon_blink = qla2x00_beacon_blink;
abbd8870 1433 ha->gid_list_info_size = 6;
854165f4
AV		 1434 if (IS_QLA2322(ha) || IS_QLA6322(ha))
1435 ha->optrom_size = OPTROM_SIZE_2322;
044cc6c8 1436 } else if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
fca29703
AV		 1437 host->max_id = MAX_TARGETS_2200;
1438 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1439 ha->request_q_length = REQUEST_ENTRY_CNT_24XX;
1440 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1441 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1442 ha->init_cb_size = sizeof(struct init_cb_24xx);
cca5335c 1443 ha->mgmt_svr_loop_id = 10;
fca29703
AV		 1444 ha->isp_ops.pci_config = qla24xx_pci_config;
1445 ha->isp_ops.reset_chip = qla24xx_reset_chip;
1446 ha->isp_ops.chip_diag = qla24xx_chip_diag;
1447 ha->isp_ops.config_rings = qla24xx_config_rings;
1448 ha->isp_ops.reset_adapter = qla24xx_reset_adapter;
1449 ha->isp_ops.nvram_config = qla24xx_nvram_config;
1450 ha->isp_ops.update_fw_options = qla24xx_update_fw_options;
5433383e 1451 ha->isp_ops.load_risc = qla24xx_load_risc;
331e3476
AV		 1452#if defined(CONFIG_SCSI_QLA2XXX_EMBEDDED_FIRMWARE)
1453 if (ql2xfwloadflash)
1454 ha->isp_ops.load_risc = qla24xx_load_risc_flash;
5433383e 1455#endif
fca29703
AV		 1456 ha->isp_ops.pci_info_str = qla24xx_pci_info_str;
1457 ha->isp_ops.fw_version_str = qla24xx_fw_version_str;
1458 ha->isp_ops.intr_handler = qla24xx_intr_handler;
1459 ha->isp_ops.enable_intrs = qla24xx_enable_intrs;
1460 ha->isp_ops.disable_intrs = qla24xx_disable_intrs;
1461 ha->isp_ops.abort_command = qla24xx_abort_command;
1462 ha->isp_ops.abort_target = qla24xx_abort_target;
1463 ha->isp_ops.fabric_login = qla24xx_login_fabric;
1464 ha->isp_ops.fabric_logout = qla24xx_fabric_logout;
1465 ha->isp_ops.prep_ms_iocb = qla24xx_prep_ms_iocb;
cca5335c 1466 ha->isp_ops.prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb;
fca29703
AV		 1467 ha->isp_ops.read_nvram = qla24xx_read_nvram_data;
1468 ha->isp_ops.write_nvram = qla24xx_write_nvram_data;
1469 ha->isp_ops.fw_dump = qla24xx_fw_dump;
1470 ha->isp_ops.ascii_fw_dump = qla24xx_ascii_fw_dump;
854165f4
AV		 1471 ha->isp_ops.read_optrom = qla24xx_read_optrom_data;
1472 ha->isp_ops.write_optrom = qla24xx_write_optrom_data;
f6df144c
AV		 1473 ha->isp_ops.beacon_on = qla24xx_beacon_on;
1474 ha->isp_ops.beacon_off = qla24xx_beacon_off;
1475 ha->isp_ops.beacon_blink = qla24xx_beacon_blink;
fca29703 1476 ha->gid_list_info_size = 8;
854165f4 1477 ha->optrom_size = OPTROM_SIZE_24XX;
1da177e4
LT		 1478 }
1479 host->can_queue = ha->request_q_length + 128;
1480
1481 /* load the F/W, read paramaters, and init the H/W */
1482 ha->instance = num_hosts;
1483
1484 init_MUTEX(&ha->mbx_cmd_sem);
1485 init_MUTEX_LOCKED(&ha->mbx_intr_sem);
1486
1487 INIT_LIST_HEAD(&ha->list);
1488 INIT_LIST_HEAD(&ha->fcports);
1da177e4
LT		 1489
1490 /*
1491 * These locks are used to prevent more than one CPU
1492 * from modifying the queue at the same time. The
1493 * higher level "host_lock" will reduce most
1494 * contention for these locks.
1495 */
1496 spin_lock_init(&ha->mbx_reg_lock);
1da177e4 1497
1da177e4
LT		 1498 qla2x00_config_dma_addressing(ha);
1499 if (qla2x00_mem_alloc(ha)) {
1500 qla_printk(KERN_WARNING, ha,
1501 "[ERROR] Failed to allocate memory for adapter\n");
1502
a1541d5a
AV		 1503 ret = -ENOMEM;
1504 goto probe_failed;
1da177e4
LT		 1505 }
1506
1507 if (qla2x00_initialize_adapter(ha) &&
1508 !(ha->device_flags & DFLG_NO_CABLE)) {
1509
1510 qla_printk(KERN_WARNING, ha,
1511 "Failed to initialize adapter\n");
1512
1513 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
1514 "Adapter flags %x.\n",
1515 ha->host_no, ha->device_flags));
1516
a1541d5a 1517 ret = -ENODEV;
1da177e4
LT		 1518 goto probe_failed;
1519 }
1520
1521 /*
1522 * Startup the kernel thread for this host adapter
1523 */
39a11240
CH		 1524 ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
1525 "%s_dpc", ha->host_str);
1526 if (IS_ERR(ha->dpc_thread)) {
1da177e4
LT		 1527 qla_printk(KERN_WARNING, ha,
1528 "Unable to start DPC thread!\n");
39a11240 1529 ret = PTR_ERR(ha->dpc_thread);
1da177e4
LT		 1530 goto probe_failed;
1531 }
1da177e4 1532
a1541d5a
AV		 1533 host->this_id = 255;
1534 host->cmd_per_lun = 3;
1535 host->unique_id = ha->instance;
1536 host->max_cmd_len = MAX_CMDSZ;
75bc4190 1537 host->max_channel = MAX_BUSES - 1;
a1541d5a
AV		 1538 host->max_lun = MAX_LUNS;
1539 host->transportt = qla2xxx_transport_template;
1540
fca29703 1541 ret = request_irq(pdev->irq, ha->isp_ops.intr_handler,
abbd8870 1542 SA_INTERRUPT|SA_SHIRQ, ha->brd_info->drv_name, ha);
a1541d5a 1543 if (ret) {
1da177e4
LT		 1544 qla_printk(KERN_WARNING, ha,
1545 "Failed to reserve interrupt %d already in use.\n",
fca29703 1546 pdev->irq);
1da177e4
LT		 1547 goto probe_failed;
1548 }
fca29703 1549 host->irq = pdev->irq;
1da177e4
LT		 1550
1551 /* Initialized the timer */
1552 qla2x00_start_timer(ha, qla2x00_timer, WATCH_INTERVAL);
1553
1554 DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
1555 ha->host_no, ha));
1556
abbd8870 1557 ha->isp_ops.disable_intrs(ha);
1da177e4 1558
1da177e4 1559 spin_lock_irqsave(&ha->hardware_lock, flags);
fca29703 1560 reg = ha->iobase;
044cc6c8 1561 if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
fca29703
AV		 1562 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_HOST_INT);
1563 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_RISC_INT);
1564 } else {
1565 WRT_REG_WORD(&reg->isp.semaphore, 0);
1566 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_RISC_INT);
1567 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_HOST_INT);
1568
1569 /* Enable proper parity */
1570 if (!IS_QLA2100(ha) && !IS_QLA2200(ha)) {
1571 if (IS_QLA2300(ha))
1572 /* SRAM parity */
1573 WRT_REG_WORD(&reg->isp.hccr,
1574 (HCCR_ENABLE_PARITY + 0x1));
1575 else
1576 /* SRAM, Instruction RAM and GP RAM parity */
1577 WRT_REG_WORD(&reg->isp.hccr,
1578 (HCCR_ENABLE_PARITY + 0x7));
1579 }
1da177e4
LT		 1580 }
1581 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1582
abbd8870 1583 ha->isp_ops.enable_intrs(ha);
1da177e4
LT		 1584
1585 /* v2.19.5b6 */
1586 /*
1587 * Wait around max loop_reset_delay secs for the devices to come
1588 * on-line. We don't want Linux scanning before we are ready.
1589 *
1590 */
1591 for (wait_switch = jiffies + (ha->loop_reset_delay * HZ);
1592 time_before(jiffies,wait_switch) &&
1593 !(ha->device_flags & (DFLG_NO_CABLE | DFLG_FABRIC_DEVICES))
1594 && (ha->device_flags & SWITCH_FOUND) ;) {
1595
1596 qla2x00_check_fabric_devices(ha);
1597
1598 msleep(10);
1599 }
1600
a1541d5a 1601 pci_set_drvdata(pdev, ha);
1da177e4
LT		 1602 ha->flags.init_done = 1;
1603 num_hosts++;
1604
a1541d5a
AV		 1605 ret = scsi_add_host(host, &pdev->dev);
1606 if (ret)
1607 goto probe_failed;
1608
1609 qla2x00_alloc_sysfs_attr(ha);
1610
1611 qla2x00_init_host_attr(ha);
1612
1da177e4
LT		 1613 qla_printk(KERN_INFO, ha, "\n"
1614 " QLogic Fibre Channel HBA Driver: %s\n"
1615 " QLogic %s - %s\n"
5433383e
AV		 1616 " ISP%04X: %s @ %s hdma%c, host#=%ld, fw=%s\n",
1617 qla2x00_version_str, ha->model_number,
1618 ha->model_desc ? ha->model_desc: "", pdev->device,
1619 ha->isp_ops.pci_info_str(ha, pci_info), pci_name(pdev),
1620 ha->flags.enable_64bit_addressing ? '+': '-', ha->host_no,
1621 ha->isp_ops.fw_version_str(ha, fw_str));
1da177e4 1622
8482e118
AV		 1623 /* Go with fc_rport registration. */
1624 list_for_each_entry(fcport, &ha->fcports, list)
1625 qla2x00_reg_remote_port(ha, fcport);
1da177e4
LT		 1626
1627 return 0;
1628
1629probe_failed:
1630 qla2x00_free_device(ha);
1631
1632 scsi_host_put(host);
1633
1634probe_disable_device:
1635 pci_disable_device(pdev);
1636
a1541d5a
AV		 1637probe_out:
1638 return ret;
1da177e4
LT		 1639}
1640EXPORT_SYMBOL_GPL(qla2x00_probe_one);
1641
1642void qla2x00_remove_one(struct pci_dev *pdev)
1643{
1644 scsi_qla_host_t *ha;
1645
1646 ha = pci_get_drvdata(pdev);
1647
8482e118 1648 qla2x00_free_sysfs_attr(ha);
1da177e4 1649
bdf79621
AV		 1650 fc_remove_host(ha->host);
1651
1da177e4
LT		 1652 scsi_remove_host(ha->host);
1653
1654 qla2x00_free_device(ha);
1655
1656 scsi_host_put(ha->host);
1657
1658 pci_set_drvdata(pdev, NULL);
1659}
1660EXPORT_SYMBOL_GPL(qla2x00_remove_one);
1661
1662static void
1663qla2x00_free_device(scsi_qla_host_t *ha)
1664{
1da177e4
LT		 1665 /* Disable timer */
1666 if (ha->timer_active)
1667 qla2x00_stop_timer(ha);
1668
1669 /* Kill the kernel thread for this host */
39a11240
CH		 1670 if (ha->dpc_thread) {
1671 struct task_struct *t = ha->dpc_thread;
1da177e4 1672
39a11240
CH		 1673 /*
1674 * qla2xxx_wake_dpc checks for ->dpc_thread
1675 * so we need to zero it out.
1676 */
1677 ha->dpc_thread = NULL;
1678 kthread_stop(t);
1da177e4
LT		 1679 }
1680
f6ef3b18
AV		 1681 /* Stop currently executing firmware. */
1682 qla2x00_stop_firmware(ha);
1da177e4 1683
f6ef3b18
AV		 1684 /* turn-off interrupts on the card */
1685 if (ha->interrupts_on)
1686 ha->isp_ops.disable_intrs(ha);
1687
1688 qla2x00_mem_free(ha);
1da177e4
LT		 1689
1690 ha->flags.online = 0;
1691
1692 /* Detach interrupts */
1693 if (ha->pdev->irq)
1694 free_irq(ha->pdev->irq, ha);
1695
1696 /* release io space registers */
1697 if (ha->iobase)
1698 iounmap(ha->iobase);
1699 pci_release_regions(ha->pdev);
1700
1701 pci_disable_device(ha->pdev);
1702}
1703
d97994dc
AV		 1704static inline void
1705qla2x00_schedule_rport_del(struct scsi_qla_host *ha, fc_port_t *fcport,
1706 int defer)
1707{
1708 unsigned long flags;
1709 struct fc_rport *rport;
1710
1711 if (!fcport->rport)
1712 return;
1713
1714 rport = fcport->rport;
1715 if (defer) {
1716 spin_lock_irqsave(&fcport->rport_lock, flags);
1717 fcport->drport = rport;
1718 fcport->rport = NULL;
387f96b4 1719 *(fc_port_t **)rport->dd_data = NULL;
d97994dc
AV		 1720 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1721 set_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags);
1722 } else {
1723 spin_lock_irqsave(&fcport->rport_lock, flags);
1724 fcport->rport = NULL;
387f96b4 1725 *(fc_port_t **)rport->dd_data = NULL;
d97994dc
AV		 1726 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1727 fc_remote_port_delete(rport);
1728 }
1729}
1730
1da177e4
LT		 1731/*
1732 * qla2x00_mark_device_lost Updates fcport state when device goes offline.
1733 *
1734 * Input: ha = adapter block pointer. fcport = port structure pointer.
1735 *
1736 * Return: None.
1737 *
1738 * Context:
1739 */
1740void qla2x00_mark_device_lost(scsi_qla_host_t *ha, fc_port_t *fcport,
d97994dc 1741 int do_login, int defer)
1da177e4 1742{
d97994dc
AV		 1743 if (atomic_read(&fcport->state) == FCS_ONLINE)
1744 qla2x00_schedule_rport_del(ha, fcport, defer);
19a7b4ae 1745
fa2a1ce5 1746 /*
1da177e4
LT		 1747 * We may need to retry the login, so don't change the state of the
1748 * port but do the retries.
1749 */
1750 if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
1751 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1752
1753 if (!do_login)
1754 return;
1755
1756 if (fcport->login_retry == 0) {
1757 fcport->login_retry = ha->login_retry_count;
1758 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
1759
1760 DEBUG(printk("scsi(%ld): Port login retry: "
1761 "%02x%02x%02x%02x%02x%02x%02x%02x, "
1762 "id = 0x%04x retry cnt=%d\n",
1763 ha->host_no,
1764 fcport->port_name[0],
1765 fcport->port_name[1],
1766 fcport->port_name[2],
1767 fcport->port_name[3],
1768 fcport->port_name[4],
1769 fcport->port_name[5],
1770 fcport->port_name[6],
1771 fcport->port_name[7],
1772 fcport->loop_id,
1773 fcport->login_retry));
1774 }
1775}
1776
1777/*
1778 * qla2x00_mark_all_devices_lost
1779 * Updates fcport state when device goes offline.
1780 *
1781 * Input:
1782 * ha = adapter block pointer.
1783 * fcport = port structure pointer.
1784 *
1785 * Return:
1786 * None.
1787 *
1788 * Context:
1789 */
1790void
d97994dc 1791qla2x00_mark_all_devices_lost(scsi_qla_host_t *ha, int defer)
1da177e4
LT		 1792{
1793 fc_port_t *fcport;
1794
1795 list_for_each_entry(fcport, &ha->fcports, list) {
1796 if (fcport->port_type != FCT_TARGET)
1797 continue;
1798
1799 /*
1800 * No point in marking the device as lost, if the device is
1801 * already DEAD.
1802 */
1803 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
1804 continue;
d97994dc
AV		 1805 if (atomic_read(&fcport->state) == FCS_ONLINE)
1806 qla2x00_schedule_rport_del(ha, fcport, defer);
1da177e4
LT		 1807 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1808 }
d97994dc 1809
39a11240
CH		 1810 if (defer)
1811 qla2xxx_wake_dpc(ha);
1da177e4
LT		 1812}
1813
1814/*
1815* qla2x00_mem_alloc
1816* Allocates adapter memory.
1817*
1818* Returns:
1819* 0 = success.
1820* 1 = failure.
1821*/
1822static uint8_t
1823qla2x00_mem_alloc(scsi_qla_host_t *ha)
1824{
1825 char name[16];
1826 uint8_t status = 1;
1827 int retry= 10;
1828
1829 do {
1830 /*
1831 * This will loop only once if everything goes well, else some
1832 * number of retries will be performed to get around a kernel
1833 * bug where available mem is not allocated until after a
1834 * little delay and a retry.
1835 */
1836 ha->request_ring = dma_alloc_coherent(&ha->pdev->dev,
1837 (ha->request_q_length + 1) * sizeof(request_t),
1838 &ha->request_dma, GFP_KERNEL);
1839 if (ha->request_ring == NULL) {
1840 qla_printk(KERN_WARNING, ha,
1841 "Memory Allocation failed - request_ring\n");
1842
1843 qla2x00_mem_free(ha);
1844 msleep(100);
1845
1846 continue;
1847 }
1848
1849 ha->response_ring = dma_alloc_coherent(&ha->pdev->dev,
1850 (ha->response_q_length + 1) * sizeof(response_t),
1851 &ha->response_dma, GFP_KERNEL);
1852 if (ha->response_ring == NULL) {
1853 qla_printk(KERN_WARNING, ha,
1854 "Memory Allocation failed - response_ring\n");
1855
1856 qla2x00_mem_free(ha);
1857 msleep(100);
1858
1859 continue;
1860 }
1861
1862 ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
1863 &ha->gid_list_dma, GFP_KERNEL);
1864 if (ha->gid_list == NULL) {
1865 qla_printk(KERN_WARNING, ha,
1866 "Memory Allocation failed - gid_list\n");
1867
1868 qla2x00_mem_free(ha);
1869 msleep(100);
1870
1871 continue;
1872 }
1873
1da177e4
LT		 1874 snprintf(name, sizeof(name), "qla2xxx_%ld", ha->host_no);
1875 ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
1876 DMA_POOL_SIZE, 8, 0);
1877 if (ha->s_dma_pool == NULL) {
1878 qla_printk(KERN_WARNING, ha,
1879 "Memory Allocation failed - s_dma_pool\n");
1880
1881 qla2x00_mem_free(ha);
1882 msleep(100);
1883
1884 continue;
1885 }
1886
1887 /* get consistent memory allocated for init control block */
1888 ha->init_cb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
1889 &ha->init_cb_dma);
1890 if (ha->init_cb == NULL) {
1891 qla_printk(KERN_WARNING, ha,
1892 "Memory Allocation failed - init_cb\n");
1893
1894 qla2x00_mem_free(ha);
1895 msleep(100);
1896
1897 continue;
1898 }
fca29703 1899 memset(ha->init_cb, 0, ha->init_cb_size);
1da177e4 1900
1da177e4
LT		 1901 /* Allocate ioctl related memory. */
1902 if (qla2x00_alloc_ioctl_mem(ha)) {
1903 qla_printk(KERN_WARNING, ha,
1904 "Memory Allocation failed - ioctl_mem\n");
1905
1906 qla2x00_mem_free(ha);
1907 msleep(100);
1908
1909 continue;
1910 }
1911
1912 if (qla2x00_allocate_sp_pool(ha)) {
1913 qla_printk(KERN_WARNING, ha,
1914 "Memory Allocation failed - "
1915 "qla2x00_allocate_sp_pool()\n");
1916
1917 qla2x00_mem_free(ha);
1918 msleep(100);
1919
1920 continue;
1921 }
1922
1923 /* Allocate memory for SNS commands */
1924 if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
1925 /* Get consistent memory allocated for SNS commands */
1926 ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
1927 sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma,
1928 GFP_KERNEL);
1929 if (ha->sns_cmd == NULL) {
1930 /* error */
1931 qla_printk(KERN_WARNING, ha,
1932 "Memory Allocation failed - sns_cmd\n");
1933
1934 qla2x00_mem_free(ha);
1935 msleep(100);
1936
1937 continue;
1938 }
1939 memset(ha->sns_cmd, 0, sizeof(struct sns_cmd_pkt));
1940 } else {
1941 /* Get consistent memory allocated for MS IOCB */
1942 ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
1943 &ha->ms_iocb_dma);
1944 if (ha->ms_iocb == NULL) {
1945 /* error */
1946 qla_printk(KERN_WARNING, ha,
1947 "Memory Allocation failed - ms_iocb\n");
1948
1949 qla2x00_mem_free(ha);
1950 msleep(100);
1951
1952 continue;
1953 }
1954 memset(ha->ms_iocb, 0, sizeof(ms_iocb_entry_t));
1955
1956 /*
1957 * Get consistent memory allocated for CT SNS
1958 * commands
1959 */
1960 ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
1961 sizeof(struct ct_sns_pkt), &ha->ct_sns_dma,
1962 GFP_KERNEL);
1963 if (ha->ct_sns == NULL) {
1964 /* error */
1965 qla_printk(KERN_WARNING, ha,
1966 "Memory Allocation failed - ct_sns\n");
1967
1968 qla2x00_mem_free(ha);
1969 msleep(100);
1970
1971 continue;
1972 }
1973 memset(ha->ct_sns, 0, sizeof(struct ct_sns_pkt));
1974 }
1975
1976 /* Done all allocations without any error. */
1977 status = 0;
1978
1979 } while (retry-- && status != 0);
1980
1981 if (status) {
1982 printk(KERN_WARNING
1983 "%s(): **** FAILED ****\n", __func__);
1984 }
1985
1986 return(status);
1987}
1988
1989/*
1990* qla2x00_mem_free
1991* Frees all adapter allocated memory.
1992*
1993* Input:
1994* ha = adapter block pointer.
1995*/
1996static void
1997qla2x00_mem_free(scsi_qla_host_t *ha)
1998{
1da177e4
LT		 1999 struct list_head *fcpl, *fcptemp;
2000 fc_port_t *fcport;
1da177e4
LT		 2001
2002 if (ha == NULL) {
2003 /* error */
2004 DEBUG2(printk("%s(): ERROR invalid ha pointer.\n", __func__));
2005 return;
2006 }
2007
1da177e4
LT		 2008 /* free ioctl memory */
2009 qla2x00_free_ioctl_mem(ha);
2010
2011 /* free sp pool */
2012 qla2x00_free_sp_pool(ha);
2013
2014 if (ha->sns_cmd)
2015 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
2016 ha->sns_cmd, ha->sns_cmd_dma);
2017
2018 if (ha->ct_sns)
2019 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2020 ha->ct_sns, ha->ct_sns_dma);
2021
2022 if (ha->ms_iocb)
2023 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2024
1da177e4
LT		 2025 if (ha->init_cb)
2026 dma_pool_free(ha->s_dma_pool, ha->init_cb, ha->init_cb_dma);
2027
2028 if (ha->s_dma_pool)
2029 dma_pool_destroy(ha->s_dma_pool);
2030
1da177e4
LT		 2031 if (ha->gid_list)
2032 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2033 ha->gid_list_dma);
2034
2035 if (ha->response_ring)
2036 dma_free_coherent(&ha->pdev->dev,
2037 (ha->response_q_length + 1) * sizeof(response_t),
2038 ha->response_ring, ha->response_dma);
2039
2040 if (ha->request_ring)
2041 dma_free_coherent(&ha->pdev->dev,
2042 (ha->request_q_length + 1) * sizeof(request_t),
2043 ha->request_ring, ha->request_dma);
2044
2045 ha->sns_cmd = NULL;
2046 ha->sns_cmd_dma = 0;
2047 ha->ct_sns = NULL;
2048 ha->ct_sns_dma = 0;
2049 ha->ms_iocb = NULL;
2050 ha->ms_iocb_dma = 0;
1da177e4
LT		 2051 ha->init_cb = NULL;
2052 ha->init_cb_dma = 0;
2053
2054 ha->s_dma_pool = NULL;
2055
1da177e4
LT		 2056 ha->gid_list = NULL;
2057 ha->gid_list_dma = 0;
2058
2059 ha->response_ring = NULL;
2060 ha->response_dma = 0;
2061 ha->request_ring = NULL;
2062 ha->request_dma = 0;
2063
2064 list_for_each_safe(fcpl, fcptemp, &ha->fcports) {
2065 fcport = list_entry(fcpl, fc_port_t, list);
2066
1da177e4
LT		 2067 /* fc ports */
2068 list_del_init(&fcport->list);
2069 kfree(fcport);
2070 }
2071 INIT_LIST_HEAD(&ha->fcports);
2072
2073 if (ha->fw_dump)
2074 free_pages((unsigned long)ha->fw_dump, ha->fw_dump_order);
2075
fca29703
AV		 2076 vfree(ha->fw_dump24);
2077
2078 vfree(ha->fw_dump_buffer);
1da177e4
LT		 2079
2080 ha->fw_dump = NULL;
fca29703
AV		 2081 ha->fw_dump24 = NULL;
2082 ha->fw_dumped = 0;
1da177e4
LT		 2083 ha->fw_dump_reading = 0;
2084 ha->fw_dump_buffer = NULL;
854165f4
AV		 2085
2086 vfree(ha->optrom_buffer);
1da177e4
LT		 2087}
2088
2089/*
2090 * qla2x00_allocate_sp_pool
2091 * This routine is called during initialization to allocate
2092 * memory for local srb_t.
2093 *
2094 * Input:
2095 * ha = adapter block pointer.
2096 *
2097 * Context:
2098 * Kernel context.
1da177e4
LT		 2099 */
2100static int
fa2a1ce5 2101qla2x00_allocate_sp_pool(scsi_qla_host_t *ha)
1da177e4
LT		 2102{
2103 int rval;
2104
2105 rval = QLA_SUCCESS;
93d2341c 2106 ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
1da177e4
LT		 2107 if (ha->srb_mempool == NULL) {
2108 qla_printk(KERN_INFO, ha, "Unable to allocate SRB mempool.\n");
2109 rval = QLA_FUNCTION_FAILED;
2110 }
2111 return (rval);
2112}
2113
2114/*
2115 * This routine frees all adapter allocated memory.
fa2a1ce5 2116 *
1da177e4
LT		 2117 */
2118static void
fa2a1ce5 2119qla2x00_free_sp_pool( scsi_qla_host_t *ha)
1da177e4
LT		 2120{
2121 if (ha->srb_mempool) {
2122 mempool_destroy(ha->srb_mempool);
2123 ha->srb_mempool = NULL;
2124 }
2125}
2126
2127/**************************************************************************
2128* qla2x00_do_dpc
2129* This kernel thread is a task that is schedule by the interrupt handler
2130* to perform the background processing for interrupts.
2131*
2132* Notes:
2133* This task always run in the context of a kernel thread. It
2134* is kick-off by the driver's detect code and starts up
2135* up one per adapter. It immediately goes to sleep and waits for
2136* some fibre event. When either the interrupt handler or
2137* the timer routine detects a event it will one of the task
2138* bits then wake us up.
2139**************************************************************************/
2140static int
2141qla2x00_do_dpc(void *data)
2142{
1da177e4
LT		 2143 scsi_qla_host_t *ha;
2144 fc_port_t *fcport;
1da177e4 2145 uint8_t status;
1da177e4 2146 uint16_t next_loopid;
1da177e4
LT		 2147
2148 ha = (scsi_qla_host_t *)data;
2149
1da177e4
LT		 2150 set_user_nice(current, -20);
2151
39a11240 2152 while (!kthread_should_stop()) {
1da177e4
LT		 2153 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
2154
39a11240
CH		 2155 set_current_state(TASK_INTERRUPTIBLE);
2156 schedule();
2157 __set_current_state(TASK_RUNNING);
1da177e4
LT		 2158
2159 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
2160
2161 /* Initialization not yet finished. Don't do anything yet. */
39a11240 2162 if (!ha->flags.init_done)
1da177e4
LT		 2163 continue;
2164
2165 DEBUG3(printk("scsi(%ld): DPC handler\n", ha->host_no));
2166
2167 ha->dpc_active = 1;
2168
1da177e4 2169 if (ha->flags.mbox_busy) {
1da177e4
LT		 2170 ha->dpc_active = 0;
2171 continue;
2172 }
2173
2174 if (test_and_clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) {
2175
2176 DEBUG(printk("scsi(%ld): dpc: sched "
2177 "qla2x00_abort_isp ha = %p\n",
2178 ha->host_no, ha));
2179 if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
2180 &ha->dpc_flags))) {
2181
2182 if (qla2x00_abort_isp(ha)) {
2183 /* failed. retry later */
2184 set_bit(ISP_ABORT_NEEDED,
2185 &ha->dpc_flags);
2186 }
2187 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2188 }
2189 DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
2190 ha->host_no));
2191 }
2192
d97994dc
AV		 2193 if (test_and_clear_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags))
2194 qla2x00_update_fcports(ha);
2195
91ca7b01
AV		 2196 if (test_and_clear_bit(LOOP_RESET_NEEDED, &ha->dpc_flags)) {
2197 DEBUG(printk("scsi(%ld): dpc: sched loop_reset()\n",
2198 ha->host_no));
2199 qla2x00_loop_reset(ha);
2200 }
2201
1da177e4
LT		 2202 if (test_and_clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) &&
2203 (!(test_and_set_bit(RESET_ACTIVE, &ha->dpc_flags)))) {
2204
2205 DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
2206 ha->host_no));
2207
2208 qla2x00_rst_aen(ha);
2209 clear_bit(RESET_ACTIVE, &ha->dpc_flags);
2210 }
2211
2212 /* Retry each device up to login retry count */
2213 if ((test_and_clear_bit(RELOGIN_NEEDED, &ha->dpc_flags)) &&
2214 !test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) &&
2215 atomic_read(&ha->loop_state) != LOOP_DOWN) {
2216
2217 DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
2218 ha->host_no));
2219
2220 next_loopid = 0;
2221 list_for_each_entry(fcport, &ha->fcports, list) {
2222 if (fcport->port_type != FCT_TARGET)
2223 continue;
2224
2225 /*
2226 * If the port is not ONLINE then try to login
2227 * to it if we haven't run out of retries.
2228 */
2229 if (atomic_read(&fcport->state) != FCS_ONLINE &&
2230 fcport->login_retry) {
2231
2232 fcport->login_retry--;
2233 if (fcport->flags & FCF_FABRIC_DEVICE) {
2234 if (fcport->flags &
2235 FCF_TAPE_PRESENT)
abbd8870 2236 ha->isp_ops.fabric_logout(
1c7c6357
AV		 2237 ha, fcport->loop_id,
2238 fcport->d_id.b.domain,
2239 fcport->d_id.b.area,
2240 fcport->d_id.b.al_pa);
1da177e4
LT		 2241 status = qla2x00_fabric_login(
2242 ha, fcport, &next_loopid);
2243 } else
2244 status =
2245 qla2x00_local_device_login(
9a52a57c 2246 ha, fcport);
1da177e4
LT		 2247
2248 if (status == QLA_SUCCESS) {
2249 fcport->old_loop_id = fcport->loop_id;
2250
2251 DEBUG(printk("scsi(%ld): port login OK: logged in ID 0x%x\n",
2252 ha->host_no, fcport->loop_id));
fa2a1ce5 2253
052c40c8
AV		 2254 qla2x00_update_fcport(ha,
2255 fcport);
1da177e4
LT		 2256 } else if (status == 1) {
2257 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
2258 /* retry the login again */
2259 DEBUG(printk("scsi(%ld): Retrying %d login again loop_id 0x%x\n",
2260 ha->host_no,
2261 fcport->login_retry, fcport->loop_id));
2262 } else {
2263 fcport->login_retry = 0;
2264 }
2265 }
2266 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2267 break;
2268 }
2269 DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
2270 ha->host_no));
2271 }
2272
2273 if ((test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags)) &&
2274 atomic_read(&ha->loop_state) != LOOP_DOWN) {
2275
2276 clear_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags);
2277 DEBUG(printk("scsi(%ld): qla2x00_login_retry()\n",
2278 ha->host_no));
fa2a1ce5 2279
1da177e4
LT		 2280 set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
2281
2282 DEBUG(printk("scsi(%ld): qla2x00_login_retry - end\n",
2283 ha->host_no));
2284 }
2285
2286 if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
2287
2288 DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
2289 ha->host_no));
2290
2291 if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
2292 &ha->dpc_flags))) {
2293
2294 qla2x00_loop_resync(ha);
2295
2296 clear_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags);
2297 }
2298
2299 DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
2300 ha->host_no));
2301 }
2302
1da177e4
LT		 2303 if (test_and_clear_bit(FCPORT_RESCAN_NEEDED, &ha->dpc_flags)) {
2304
2305 DEBUG(printk("scsi(%ld): Rescan flagged fcports...\n",
2306 ha->host_no));
2307
2308 qla2x00_rescan_fcports(ha);
2309
2310 DEBUG(printk("scsi(%ld): Rescan flagged fcports..."
2311 "end.\n",
2312 ha->host_no));
2313 }
2314
1da177e4 2315 if (!ha->interrupts_on)
abbd8870 2316 ha->isp_ops.enable_intrs(ha);
1da177e4 2317
f6df144c
AV		 2318 if (test_and_clear_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags))
2319 ha->isp_ops.beacon_blink(ha);
2320
1da177e4
LT		 2321 ha->dpc_active = 0;
2322 } /* End of while(1) */
2323
2324 DEBUG(printk("scsi(%ld): DPC handler exiting\n", ha->host_no));
2325
2326 /*
2327 * Make sure that nobody tries to wake us up again.
2328 */
1da177e4
LT		 2329 ha->dpc_active = 0;
2330
39a11240
CH		 2331 return 0;
2332}
2333
2334void
2335qla2xxx_wake_dpc(scsi_qla_host_t *ha)
2336{
2337 if (ha->dpc_thread)
2338 wake_up_process(ha->dpc_thread);
1da177e4
LT		 2339}
2340
1da177e4
LT		 2341/*
2342* qla2x00_rst_aen
2343* Processes asynchronous reset.
2344*
2345* Input:
2346* ha = adapter block pointer.
2347*/
2348static void
fa2a1ce5 2349qla2x00_rst_aen(scsi_qla_host_t *ha)
1da177e4
LT		 2350{
2351 if (ha->flags.online && !ha->flags.reset_active &&
2352 !atomic_read(&ha->loop_down_timer) &&
2353 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) {
2354 do {
2355 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
2356
2357 /*
2358 * Issue marker command only when we are going to start
2359 * the I/O.
2360 */
2361 ha->marker_needed = 1;
2362 } while (!atomic_read(&ha->loop_down_timer) &&
2363 (test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags)));
2364 }
2365}
2366
f4f051eb
AV		 2367static void
2368qla2x00_sp_free_dma(scsi_qla_host_t *ha, srb_t *sp)
2369{
2370 struct scsi_cmnd *cmd = sp->cmd;
2371
2372 if (sp->flags & SRB_DMA_VALID) {
2373 if (cmd->use_sg) {
2374 dma_unmap_sg(&ha->pdev->dev, cmd->request_buffer,
2375 cmd->use_sg, cmd->sc_data_direction);
2376 } else if (cmd->request_bufflen) {
2377 dma_unmap_single(&ha->pdev->dev, sp->dma_handle,
2378 cmd->request_bufflen, cmd->sc_data_direction);
2379 }
2380 sp->flags &= ~SRB_DMA_VALID;
2381 }
fca29703 2382 CMD_SP(cmd) = NULL;
f4f051eb
AV		 2383}
2384
2385void
2386qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *sp)
2387{
2388 struct scsi_cmnd *cmd = sp->cmd;
2389
2390 qla2x00_sp_free_dma(ha, sp);
2391
f4f051eb
AV		 2392 mempool_free(sp, ha->srb_mempool);
2393
2394 cmd->scsi_done(cmd);
2395}
bdf79621 2396
1da177e4
LT		 2397/**************************************************************************
2398* qla2x00_timer
2399*
2400* Description:
2401* One second timer
2402*
2403* Context: Interrupt
2404***************************************************************************/
2405static void
2406qla2x00_timer(scsi_qla_host_t *ha)
2407{
1da177e4
LT		 2408 unsigned long cpu_flags = 0;
2409 fc_port_t *fcport;
1da177e4
LT		 2410 int start_dpc = 0;
2411 int index;
2412 srb_t *sp;
f4f051eb 2413 int t;
1da177e4
LT		 2414
2415 /*
2416 * Ports - Port down timer.
2417 *
2418 * Whenever, a port is in the LOST state we start decrementing its port
2419 * down timer every second until it reaches zero. Once it reaches zero
fa2a1ce5 2420 * the port it marked DEAD.
1da177e4
LT		 2421 */
2422 t = 0;
2423 list_for_each_entry(fcport, &ha->fcports, list) {
2424 if (fcport->port_type != FCT_TARGET)
2425 continue;
2426
2427 if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
2428
2429 if (atomic_read(&fcport->port_down_timer) == 0)
2430 continue;
2431
fa2a1ce5 2432 if (atomic_dec_and_test(&fcport->port_down_timer) != 0)
1da177e4 2433 atomic_set(&fcport->state, FCS_DEVICE_DEAD);
fa2a1ce5 2434
1da177e4 2435 DEBUG(printk("scsi(%ld): fcport-%d - port retry count: "
fca29703 2436 "%d remaining\n",
1da177e4
LT		 2437 ha->host_no,
2438 t, atomic_read(&fcport->port_down_timer)));
2439 }
2440 t++;
2441 } /* End of for fcport */
2442
1da177e4
LT		 2443
2444 /* Loop down handler. */
2445 if (atomic_read(&ha->loop_down_timer) > 0 &&
2446 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags)) && ha->flags.online) {
2447
2448 if (atomic_read(&ha->loop_down_timer) ==
2449 ha->loop_down_abort_time) {
2450
2451 DEBUG(printk("scsi(%ld): Loop Down - aborting the "
2452 "queues before time expire\n",
2453 ha->host_no));
2454
2455 if (!IS_QLA2100(ha) && ha->link_down_timeout)
fa2a1ce5 2456 atomic_set(&ha->loop_state, LOOP_DEAD);
1da177e4
LT		 2457
2458 /* Schedule an ISP abort to return any tape commands. */
2459 spin_lock_irqsave(&ha->hardware_lock, cpu_flags);
2460 for (index = 1; index < MAX_OUTSTANDING_COMMANDS;
2461 index++) {
bdf79621
AV		 2462 fc_port_t *sfcp;
2463
1da177e4
LT		 2464 sp = ha->outstanding_cmds[index];
2465 if (!sp)
2466 continue;
bdf79621
AV		 2467 sfcp = sp->fcport;
2468 if (!(sfcp->flags & FCF_TAPE_PRESENT))
1da177e4
LT		 2469 continue;
2470
2471 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2472 break;
2473 }
2474 spin_unlock_irqrestore(&ha->hardware_lock, cpu_flags);
2475
2476 set_bit(ABORT_QUEUES_NEEDED, &ha->dpc_flags);
2477 start_dpc++;
2478 }
2479
2480 /* if the loop has been down for 4 minutes, reinit adapter */
2481 if (atomic_dec_and_test(&ha->loop_down_timer) != 0) {
2482 DEBUG(printk("scsi(%ld): Loop down exceed 4 mins - "
2483 "restarting queues.\n",
2484 ha->host_no));
2485
2486 set_bit(RESTART_QUEUES_NEEDED, &ha->dpc_flags);
2487 start_dpc++;
2488
2489 if (!(ha->device_flags & DFLG_NO_CABLE)) {
2490 DEBUG(printk("scsi(%ld): Loop down - "
2491 "aborting ISP.\n",
2492 ha->host_no));
2493 qla_printk(KERN_WARNING, ha,
2494 "Loop down - aborting ISP.\n");
2495
2496 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2497 }
2498 }
fca29703 2499 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
1da177e4
LT		 2500 ha->host_no,
2501 atomic_read(&ha->loop_down_timer)));
2502 }
2503
f6df144c
AV		 2504 /* Check if beacon LED needs to be blinked */
2505 if (ha->beacon_blink_led == 1) {
2506 set_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags);
2507 start_dpc++;
2508 }
2509
1da177e4
LT		 2510 /* Schedule the DPC routine if needed */
2511 if ((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags) ||
2512 test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) ||
91ca7b01 2513 test_bit(LOOP_RESET_NEEDED, &ha->dpc_flags) ||
d97994dc 2514 test_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags) ||
1da177e4
LT		 2515 start_dpc ||
2516 test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags) ||
f4f051eb 2517 test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) ||
f6df144c 2518 test_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags) ||
39a11240
CH		 2519 test_bit(RELOGIN_NEEDED, &ha->dpc_flags)))
2520 qla2xxx_wake_dpc(ha);
1da177e4
LT		 2521
2522 qla2x00_restart_timer(ha, WATCH_INTERVAL);
2523}
2524
1da177e4
LT		 2525/* XXX(hch): crude hack to emulate a down_timeout() */
2526int
2527qla2x00_down_timeout(struct semaphore *sema, unsigned long timeout)
2528{
fe74c71f
AV		 2529 const unsigned int step = 100; /* msecs */
2530 unsigned int iterations = jiffies_to_msecs(timeout)/100;
1da177e4
LT		 2531
2532 do {
2533 if (!down_trylock(sema))
2534 return 0;
fe74c71f 2535 if (msleep_interruptible(step))
1da177e4 2536 break;
fe74c71f 2537 } while (--iterations >= 0);
1da177e4
LT		 2538
2539 return -ETIMEDOUT;
2540}
2541
5433383e
AV		 2542#if defined(CONFIG_SCSI_QLA2XXX_EMBEDDED_FIRMWARE)
2543
2544#define qla2x00_release_firmware() do { } while (0)
331e3476
AV		 2545#define qla2x00_pci_module_init() (0)
2546#define qla2x00_pci_module_exit() do { } while (0)
fca29703 2547
5433383e
AV		 2548#else /* !defined(CONFIG_SCSI_QLA2XXX_EMBEDDED_FIRMWARE) */
2549
2550/* Firmware interface routines. */
2551
48c02fde 2552#define FW_BLOBS 5
5433383e
AV		 2553#define FW_ISP21XX 0
2554#define FW_ISP22XX 1
2555#define FW_ISP2300 2
2556#define FW_ISP2322 3
48c02fde 2557#define FW_ISP24XX 4
5433383e
AV		 2558
2559static DECLARE_MUTEX(qla_fw_lock);
2560
2561static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
2562 { .name = "ql2100_fw.bin", .segs = { 0x1000, 0 }, },
2563 { .name = "ql2200_fw.bin", .segs = { 0x1000, 0 }, },
2564 { .name = "ql2300_fw.bin", .segs = { 0x800, 0 }, },
2565 { .name = "ql2322_fw.bin", .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
5433383e
AV		 2566 { .name = "ql2400_fw.bin", },
2567};
2568
2569struct fw_blob *
2570qla2x00_request_firmware(scsi_qla_host_t *ha)
2571{
2572 struct fw_blob *blob;
2573
2574 blob = NULL;
2575 if (IS_QLA2100(ha)) {
2576 blob = &qla_fw_blobs[FW_ISP21XX];
2577 } else if (IS_QLA2200(ha)) {
2578 blob = &qla_fw_blobs[FW_ISP22XX];
48c02fde 2579 } else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
5433383e 2580 blob = &qla_fw_blobs[FW_ISP2300];
48c02fde 2581 } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
5433383e 2582 blob = &qla_fw_blobs[FW_ISP2322];
044cc6c8 2583 } else if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
5433383e
AV		 2584 blob = &qla_fw_blobs[FW_ISP24XX];
2585 }
2586
2587 down(&qla_fw_lock);
2588 if (blob->fw)
2589 goto out;
2590
2591 if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
2592 DEBUG2(printk("scsi(%ld): Failed to load firmware image "
2593 "(%s).\n", ha->host_no, blob->name));
2594 blob->fw = NULL;
2595 blob = NULL;
2596 goto out;
2597 }
2598
2599out:
2600 up(&qla_fw_lock);
2601 return blob;
2602}
2603
2604static void
2605qla2x00_release_firmware(void)
2606{
2607 int idx;
2608
2609 down(&qla_fw_lock);
2610 for (idx = 0; idx < FW_BLOBS; idx++)
2611 if (qla_fw_blobs[idx].fw)
2612 release_firmware(qla_fw_blobs[idx].fw);
2613 up(&qla_fw_lock);
2614}
2615
2616static struct qla_board_info qla_board_tbl = {
2617 .drv_name = "qla2xxx",
2618};
2619
2620static struct pci_device_id qla2xxx_pci_tbl[] = {
2621 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100,
2622 PCI_ANY_ID, PCI_ANY_ID, },
2623 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200,
2624 PCI_ANY_ID, PCI_ANY_ID, },
2625 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300,
2626 PCI_ANY_ID, PCI_ANY_ID, },
2627 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312,
2628 PCI_ANY_ID, PCI_ANY_ID, },
2629 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322,
2630 PCI_ANY_ID, PCI_ANY_ID, },
2631 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312,
2632 PCI_ANY_ID, PCI_ANY_ID, },
2633 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322,
2634 PCI_ANY_ID, PCI_ANY_ID, },
2635 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422,
2636 PCI_ANY_ID, PCI_ANY_ID, },
2637 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432,
2638 PCI_ANY_ID, PCI_ANY_ID, },
044cc6c8
AV		 2639 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422,
2640 PCI_ANY_ID, PCI_ANY_ID, },
2641 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432,
2642 PCI_ANY_ID, PCI_ANY_ID, },
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{
2650 return qla2x00_probe_one(pdev, &qla_board_tbl);
2651}
2652
2653static void __devexit
2654qla2xxx_remove_one(struct pci_dev *pdev)
2655{
2656 qla2x00_remove_one(pdev);
2657}
2658
fca29703
AV		 2659static struct pci_driver qla2xxx_pci_driver = {
2660 .name = "qla2xxx",
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
2681#endif
2682
1da177e4
LT		 2683/**
2684 * qla2x00_module_init - Module initialization.
2685 **/
2686static int __init
2687qla2x00_module_init(void)
2688{
fca29703
AV		 2689 int ret = 0;
2690
1da177e4 2691 /* Allocate cache for SRBs. */
354d6b21 2692 srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
1da177e4
LT		 2693 SLAB_HWCACHE_ALIGN, NULL, NULL);
2694 if (srb_cachep == NULL) {
2695 printk(KERN_ERR
2696 "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
2697 return -ENOMEM;
2698 }
2699
2700 /* Derive version string. */
2701 strcpy(qla2x00_version_str, QLA2XXX_VERSION);
5433383e
AV		 2702#if defined(CONFIG_SCSI_QLA2XXX_EMBEDDED_FIRMWARE)
2703 strcat(qla2x00_version_str, "-fw");
2704#endif
1da177e4
LT		 2705#if DEBUG_QLA2100
2706 strcat(qla2x00_version_str, "-debug");
2707#endif
1c97a12a
AV		 2708 qla2xxx_transport_template =
2709 fc_attach_transport(&qla2xxx_transport_functions);
1da177e4
LT		 2710 if (!qla2xxx_transport_template)
2711 return -ENODEV;
2712
2713 printk(KERN_INFO "QLogic Fibre Channel HBA Driver\n");
331e3476 2714 ret = qla2x00_pci_module_init();
fca29703
AV		 2715 if (ret) {
2716 kmem_cache_destroy(srb_cachep);
2717 fc_release_transport(qla2xxx_transport_template);
2718 }
2719 return ret;
1da177e4
LT		 2720}
2721
2722/**
2723 * qla2x00_module_exit - Module cleanup.
2724 **/
2725static void __exit
2726qla2x00_module_exit(void)
2727{
331e3476 2728 qla2x00_pci_module_exit();
5433383e 2729 qla2x00_release_firmware();
354d6b21 2730 kmem_cache_destroy(srb_cachep);
1da177e4
LT		 2731 fc_release_transport(qla2xxx_transport_template);
2732}
2733
2734module_init(qla2x00_module_init);
2735module_exit(qla2x00_module_exit);
2736
2737MODULE_AUTHOR("QLogic Corporation");
2738MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
2739MODULE_LICENSE("GPL");
2740MODULE_VERSION(QLA2XXX_VERSION);
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