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Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus
[wrt350n-kernel.git] / drivers / scsi / stex.c
blob654430edf74db0525b35605e06b176126cb5aab1
1 /*
2 * SuperTrak EX Series Storage Controller driver for Linux
3 *
4 * Copyright (C) 2005, 2006 Promise Technology Inc.
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or (at your option) any later version.
10 *
11 * Written By:
12 * Ed Lin <promise_linux@promise.com>
13 *
14 */
15
16 #include <linux/init.h>
17 #include <linux/errno.h>
18 #include <linux/kernel.h>
19 #include <linux/delay.h>
20 #include <linux/time.h>
21 #include <linux/pci.h>
22 #include <linux/blkdev.h>
23 #include <linux/interrupt.h>
24 #include <linux/types.h>
25 #include <linux/module.h>
26 #include <linux/spinlock.h>
27 #include <asm/io.h>
28 #include <asm/irq.h>
29 #include <asm/byteorder.h>
30 #include <scsi/scsi.h>
31 #include <scsi/scsi_device.h>
32 #include <scsi/scsi_cmnd.h>
33 #include <scsi/scsi_host.h>
34 #include <scsi/scsi_tcq.h>
35 #include <scsi/scsi_dbg.h>
36
37 #define DRV_NAME "stex"
38 #define ST_DRIVER_VERSION "3.6.0000.1"
39 #define ST_VER_MAJOR 3
40 #define ST_VER_MINOR 6
41 #define ST_OEM 0
42 #define ST_BUILD_VER 1
43
44 enum {
45 /* MU register offset */
46 IMR0 = 0x10, /* MU_INBOUND_MESSAGE_REG0 */
47 IMR1 = 0x14, /* MU_INBOUND_MESSAGE_REG1 */
48 OMR0 = 0x18, /* MU_OUTBOUND_MESSAGE_REG0 */
49 OMR1 = 0x1c, /* MU_OUTBOUND_MESSAGE_REG1 */
50 IDBL = 0x20, /* MU_INBOUND_DOORBELL */
51 IIS = 0x24, /* MU_INBOUND_INTERRUPT_STATUS */
52 IIM = 0x28, /* MU_INBOUND_INTERRUPT_MASK */
53 ODBL = 0x2c, /* MU_OUTBOUND_DOORBELL */
54 OIS = 0x30, /* MU_OUTBOUND_INTERRUPT_STATUS */
55 OIM = 0x3c, /* MU_OUTBOUND_INTERRUPT_MASK */
56
57 /* MU register value */
58 MU_INBOUND_DOORBELL_HANDSHAKE = 1,
59 MU_INBOUND_DOORBELL_REQHEADCHANGED = 2,
60 MU_INBOUND_DOORBELL_STATUSTAILCHANGED = 4,
61 MU_INBOUND_DOORBELL_HMUSTOPPED = 8,
62 MU_INBOUND_DOORBELL_RESET = 16,
63
64 MU_OUTBOUND_DOORBELL_HANDSHAKE = 1,
65 MU_OUTBOUND_DOORBELL_REQUESTTAILCHANGED = 2,
66 MU_OUTBOUND_DOORBELL_STATUSHEADCHANGED = 4,
67 MU_OUTBOUND_DOORBELL_BUSCHANGE = 8,
68 MU_OUTBOUND_DOORBELL_HASEVENT = 16,
69
70 /* MU status code */
71 MU_STATE_STARTING = 1,
72 MU_STATE_FMU_READY_FOR_HANDSHAKE = 2,
73 MU_STATE_SEND_HANDSHAKE_FRAME = 3,
74 MU_STATE_STARTED = 4,
75 MU_STATE_RESETTING = 5,
76
77 MU_MAX_DELAY = 120,
78 MU_HANDSHAKE_SIGNATURE = 0x55aaaa55,
79 MU_HANDSHAKE_SIGNATURE_HALF = 0x5a5a0000,
80 MU_HARD_RESET_WAIT = 30000,
81 HMU_PARTNER_TYPE = 2,
82
83 /* firmware returned values */
84 SRB_STATUS_SUCCESS = 0x01,
85 SRB_STATUS_ERROR = 0x04,
86 SRB_STATUS_BUSY = 0x05,
87 SRB_STATUS_INVALID_REQUEST = 0x06,
88 SRB_STATUS_SELECTION_TIMEOUT = 0x0A,
89 SRB_SEE_SENSE = 0x80,
90
91 /* task attribute */
92 TASK_ATTRIBUTE_SIMPLE = 0x0,
93 TASK_ATTRIBUTE_HEADOFQUEUE = 0x1,
94 TASK_ATTRIBUTE_ORDERED = 0x2,
95 TASK_ATTRIBUTE_ACA = 0x4,
96
97 /* request count, etc. */
98 MU_MAX_REQUEST = 32,
99
100 /* one message wasted, use MU_MAX_REQUEST+1
101 to handle MU_MAX_REQUEST messages */
102 MU_REQ_COUNT = (MU_MAX_REQUEST + 1),
103 MU_STATUS_COUNT = (MU_MAX_REQUEST + 1),
104
105 STEX_CDB_LENGTH = MAX_COMMAND_SIZE,
106 REQ_VARIABLE_LEN = 1024,
107 STATUS_VAR_LEN = 128,
108 ST_CAN_QUEUE = MU_MAX_REQUEST,
109 ST_CMD_PER_LUN = MU_MAX_REQUEST,
110 ST_MAX_SG = 32,
111
112 /* sg flags */
113 SG_CF_EOT = 0x80, /* end of table */
114 SG_CF_64B = 0x40, /* 64 bit item */
115 SG_CF_HOST = 0x20, /* sg in host memory */
116
117 st_shasta = 0,
118 st_vsc = 1,
119 st_vsc1 = 2,
120 st_yosemite = 3,
121
122 PASSTHRU_REQ_TYPE = 0x00000001,
123 PASSTHRU_REQ_NO_WAKEUP = 0x00000100,
124 ST_INTERNAL_TIMEOUT = 30,
125
126 ST_TO_CMD = 0,
127 ST_FROM_CMD = 1,
128
129 /* vendor specific commands of Promise */
130 MGT_CMD = 0xd8,
131 SINBAND_MGT_CMD = 0xd9,
132 ARRAY_CMD = 0xe0,
133 CONTROLLER_CMD = 0xe1,
134 DEBUGGING_CMD = 0xe2,
135 PASSTHRU_CMD = 0xe3,
136
137 PASSTHRU_GET_ADAPTER = 0x05,
138 PASSTHRU_GET_DRVVER = 0x10,
139
140 CTLR_CONFIG_CMD = 0x03,
141 CTLR_SHUTDOWN = 0x0d,
142
143 CTLR_POWER_STATE_CHANGE = 0x0e,
144 CTLR_POWER_SAVING = 0x01,
145
146 PASSTHRU_SIGNATURE = 0x4e415041,
147 MGT_CMD_SIGNATURE = 0xba,
148
149 INQUIRY_EVPD = 0x01,
150
151 ST_ADDITIONAL_MEM = 0x200000,
152 };
153
154 /* SCSI inquiry data */
155 typedef struct st_inq {
156 u8 DeviceType :5;
157 u8 DeviceTypeQualifier :3;
158 u8 DeviceTypeModifier :7;
159 u8 RemovableMedia :1;
160 u8 Versions;
161 u8 ResponseDataFormat :4;
162 u8 HiSupport :1;
163 u8 NormACA :1;
164 u8 ReservedBit :1;
165 u8 AERC :1;
166 u8 AdditionalLength;
167 u8 Reserved[2];
168 u8 SoftReset :1;
169 u8 CommandQueue :1;
170 u8 Reserved2 :1;
171 u8 LinkedCommands :1;
172 u8 Synchronous :1;
173 u8 Wide16Bit :1;
174 u8 Wide32Bit :1;
175 u8 RelativeAddressing :1;
176 u8 VendorId[8];
177 u8 ProductId[16];
178 u8 ProductRevisionLevel[4];
179 u8 VendorSpecific[20];
180 u8 Reserved3[40];
181 } ST_INQ;
182
183 struct st_sgitem {
184 u8 ctrl; /* SG_CF_xxx */
185 u8 reserved[3];
186 __le32 count;
187 __le32 addr;
188 __le32 addr_hi;
189 };
190
191 struct st_sgtable {
192 __le16 sg_count;
193 __le16 max_sg_count;
194 __le32 sz_in_byte;
195 struct st_sgitem table[ST_MAX_SG];
196 };
197
198 struct handshake_frame {
199 __le32 rb_phy; /* request payload queue physical address */
200 __le32 rb_phy_hi;
201 __le16 req_sz; /* size of each request payload */
202 __le16 req_cnt; /* count of reqs the buffer can hold */
203 __le16 status_sz; /* size of each status payload */
204 __le16 status_cnt; /* count of status the buffer can hold */
205 __le32 hosttime; /* seconds from Jan 1, 1970 (GMT) */
206 __le32 hosttime_hi;
207 u8 partner_type; /* who sends this frame */
208 u8 reserved0[7];
209 __le32 partner_ver_major;
210 __le32 partner_ver_minor;
211 __le32 partner_ver_oem;
212 __le32 partner_ver_build;
213 __le32 extra_offset; /* NEW */
214 __le32 extra_size; /* NEW */
215 u32 reserved1[2];
216 };
217
218 struct req_msg {
219 __le16 tag;
220 u8 lun;
221 u8 target;
222 u8 task_attr;
223 u8 task_manage;
224 u8 prd_entry;
225 u8 payload_sz; /* payload size in 4-byte, not used */
226 u8 cdb[STEX_CDB_LENGTH];
227 u8 variable[REQ_VARIABLE_LEN];
228 };
229
230 struct status_msg {
231 __le16 tag;
232 u8 lun;
233 u8 target;
234 u8 srb_status;
235 u8 scsi_status;
236 u8 reserved;
237 u8 payload_sz; /* payload size in 4-byte */
238 u8 variable[STATUS_VAR_LEN];
239 };
240
241 struct ver_info {
242 u32 major;
243 u32 minor;
244 u32 oem;
245 u32 build;
246 u32 reserved[2];
247 };
248
249 struct st_frame {
250 u32 base[6];
251 u32 rom_addr;
252
253 struct ver_info drv_ver;
254 struct ver_info bios_ver;
255
256 u32 bus;
257 u32 slot;
258 u32 irq_level;
259 u32 irq_vec;
260 u32 id;
261 u32 subid;
262
263 u32 dimm_size;
264 u8 dimm_type;
265 u8 reserved[3];
266
267 u32 channel;
268 u32 reserved1;
269 };
270
271 struct st_drvver {
272 u32 major;
273 u32 minor;
274 u32 oem;
275 u32 build;
276 u32 signature[2];
277 u8 console_id;
278 u8 host_no;
279 u8 reserved0[2];
280 u32 reserved[3];
281 };
282
283 #define MU_REQ_BUFFER_SIZE (MU_REQ_COUNT * sizeof(struct req_msg))
284 #define MU_STATUS_BUFFER_SIZE (MU_STATUS_COUNT * sizeof(struct status_msg))
285 #define MU_BUFFER_SIZE (MU_REQ_BUFFER_SIZE + MU_STATUS_BUFFER_SIZE)
286 #define STEX_EXTRA_SIZE max(sizeof(struct st_frame), sizeof(ST_INQ))
287 #define STEX_BUFFER_SIZE (MU_BUFFER_SIZE + STEX_EXTRA_SIZE)
288
289 struct st_ccb {
290 struct req_msg *req;
291 struct scsi_cmnd *cmd;
292
293 void *sense_buffer;
294 unsigned int sense_bufflen;
295 int sg_count;
296
297 u32 req_type;
298 u8 srb_status;
299 u8 scsi_status;
300 };
301
302 struct st_hba {
303 void __iomem *mmio_base; /* iomapped PCI memory space */
304 void *dma_mem;
305 dma_addr_t dma_handle;
306 size_t dma_size;
307
308 struct Scsi_Host *host;
309 struct pci_dev *pdev;
310
311 u32 req_head;
312 u32 req_tail;
313 u32 status_head;
314 u32 status_tail;
315
316 struct status_msg *status_buffer;
317 void *copy_buffer; /* temp buffer for driver-handled commands */
318 struct st_ccb ccb[MU_MAX_REQUEST];
319 struct st_ccb *wait_ccb;
320 wait_queue_head_t waitq;
321
322 unsigned int mu_status;
323 int out_req_cnt;
324
325 unsigned int cardtype;
326 };
327
328 static const char console_inq_page[] =
329 {
330 0x03,0x00,0x03,0x03,0xFA,0x00,0x00,0x30,
331 0x50,0x72,0x6F,0x6D,0x69,0x73,0x65,0x20, /* "Promise " */
332 0x52,0x41,0x49,0x44,0x20,0x43,0x6F,0x6E, /* "RAID Con" */
333 0x73,0x6F,0x6C,0x65,0x20,0x20,0x20,0x20, /* "sole " */
334 0x31,0x2E,0x30,0x30,0x20,0x20,0x20,0x20, /* "1.00 " */
335 0x53,0x58,0x2F,0x52,0x53,0x41,0x46,0x2D, /* "SX/RSAF-" */
336 0x54,0x45,0x31,0x2E,0x30,0x30,0x20,0x20, /* "TE1.00 " */
337 0x0C,0x20,0x20,0x20,0x20,0x20,0x20,0x20
338 };
339
340 MODULE_AUTHOR("Ed Lin");
341 MODULE_DESCRIPTION("Promise Technology SuperTrak EX Controllers");
342 MODULE_LICENSE("GPL");
343 MODULE_VERSION(ST_DRIVER_VERSION);
344
345 static void stex_gettime(__le32 *time)
346 {
347 struct timeval tv;
348 do_gettimeofday(&tv);
349
350 *time = cpu_to_le32(tv.tv_sec & 0xffffffff);
351 *(time + 1) = cpu_to_le32((tv.tv_sec >> 16) >> 16);
352 }
353
354 static struct status_msg *stex_get_status(struct st_hba *hba)
355 {
356 struct status_msg *status =
357 hba->status_buffer + hba->status_tail;
358
359 ++hba->status_tail;
360 hba->status_tail %= MU_STATUS_COUNT;
361
362 return status;
363 }
364
365 static void stex_set_sense(struct scsi_cmnd *cmd, u8 sk, u8 asc, u8 ascq)
366 {
367 cmd->result = (DRIVER_SENSE << 24) | SAM_STAT_CHECK_CONDITION;
368
369 cmd->sense_buffer[0] = 0x70; /* fixed format, current */
370 cmd->sense_buffer[2] = sk;
371 cmd->sense_buffer[7] = 18 - 8; /* additional sense length */
372 cmd->sense_buffer[12] = asc;
373 cmd->sense_buffer[13] = ascq;
374 }
375
376 static void stex_invalid_field(struct scsi_cmnd *cmd,
377 void (*done)(struct scsi_cmnd *))
378 {
379 /* "Invalid field in cbd" */
380 stex_set_sense(cmd, ILLEGAL_REQUEST, 0x24, 0x0);
381 done(cmd);
382 }
383
384 static struct req_msg *stex_alloc_req(struct st_hba *hba)
385 {
386 struct req_msg *req = ((struct req_msg *)hba->dma_mem) +
387 hba->req_head;
388
389 ++hba->req_head;
390 hba->req_head %= MU_REQ_COUNT;
391
392 return req;
393 }
394
395 static int stex_map_sg(struct st_hba *hba,
396 struct req_msg *req, struct st_ccb *ccb)
397 {
398 struct scsi_cmnd *cmd;
399 struct scatterlist *sg;
400 struct st_sgtable *dst;
401 int i, nseg;
402
403 cmd = ccb->cmd;
404 dst = (struct st_sgtable *)req->variable;
405 dst->max_sg_count = cpu_to_le16(ST_MAX_SG);
406 dst->sz_in_byte = cpu_to_le32(scsi_bufflen(cmd));
407
408 nseg = scsi_dma_map(cmd);
409 if (nseg < 0)
410 return -EIO;
411 if (nseg) {
412 ccb->sg_count = nseg;
413 dst->sg_count = cpu_to_le16((u16)nseg);
414
415 scsi_for_each_sg(cmd, sg, nseg, i) {
416 dst->table[i].count = cpu_to_le32((u32)sg_dma_len(sg));
417 dst->table[i].addr =
418 cpu_to_le32(sg_dma_address(sg) & 0xffffffff);
419 dst->table[i].addr_hi =
420 cpu_to_le32((sg_dma_address(sg) >> 16) >> 16);
421 dst->table[i].ctrl = SG_CF_64B | SG_CF_HOST;
422 }
423 dst->table[--i].ctrl |= SG_CF_EOT;
424 }
425
426 return 0;
427 }
428
429 static void stex_internal_copy(struct scsi_cmnd *cmd,
430 const void *src, size_t *count, int sg_count, int direction)
431 {
432 size_t lcount;
433 size_t len;
434 void *s, *d, *base = NULL;
435 size_t offset;
436
437 if (*count > scsi_bufflen(cmd))
438 *count = scsi_bufflen(cmd);
439 lcount = *count;
440 while (lcount) {
441 len = lcount;
442 s = (void *)src;
443
444 offset = *count - lcount;
445 s += offset;
446 base = scsi_kmap_atomic_sg(scsi_sglist(cmd),
447 sg_count, &offset, &len);
448 if (!base) {
449 *count -= lcount;
450 return;
451 }
452 d = base + offset;
453
454 if (direction == ST_TO_CMD)
455 memcpy(d, s, len);
456 else
457 memcpy(s, d, len);
458
459 lcount -= len;
460 scsi_kunmap_atomic_sg(base);
461 }
462 }
463
464 static void stex_controller_info(struct st_hba *hba, struct st_ccb *ccb)
465 {
466 struct st_frame *p;
467 size_t count = sizeof(struct st_frame);
468
469 p = hba->copy_buffer;
470 stex_internal_copy(ccb->cmd, p, &count, scsi_sg_count(ccb->cmd),
471 ST_FROM_CMD);
472 memset(p->base, 0, sizeof(u32)*6);
473 *(unsigned long *)(p->base) = pci_resource_start(hba->pdev, 0);
474 p->rom_addr = 0;
475
476 p->drv_ver.major = ST_VER_MAJOR;
477 p->drv_ver.minor = ST_VER_MINOR;
478 p->drv_ver.oem = ST_OEM;
479 p->drv_ver.build = ST_BUILD_VER;
480
481 p->bus = hba->pdev->bus->number;
482 p->slot = hba->pdev->devfn;
483 p->irq_level = 0;
484 p->irq_vec = hba->pdev->irq;
485 p->id = hba->pdev->vendor << 16 | hba->pdev->device;
486 p->subid =
487 hba->pdev->subsystem_vendor << 16 | hba->pdev->subsystem_device;
488
489 stex_internal_copy(ccb->cmd, p, &count, scsi_sg_count(ccb->cmd),
490 ST_TO_CMD);
491 }
492
493 static void
494 stex_send_cmd(struct st_hba *hba, struct req_msg *req, u16 tag)
495 {
496 req->tag = cpu_to_le16(tag);
497 req->task_attr = TASK_ATTRIBUTE_SIMPLE;
498 req->task_manage = 0; /* not supported yet */
499
500 hba->ccb[tag].req = req;
501 hba->out_req_cnt++;
502
503 writel(hba->req_head, hba->mmio_base + IMR0);
504 writel(MU_INBOUND_DOORBELL_REQHEADCHANGED, hba->mmio_base + IDBL);
505 readl(hba->mmio_base + IDBL); /* flush */
506 }
507
508 static int
509 stex_slave_alloc(struct scsi_device *sdev)
510 {
511 /* Cheat: usually extracted from Inquiry data */
512 sdev->tagged_supported = 1;
513
514 scsi_activate_tcq(sdev, sdev->host->can_queue);
515
516 return 0;
517 }
518
519 static int
520 stex_slave_config(struct scsi_device *sdev)
521 {
522 sdev->use_10_for_rw = 1;
523 sdev->use_10_for_ms = 1;
524 sdev->timeout = 60 * HZ;
525 sdev->tagged_supported = 1;
526
527 return 0;
528 }
529
530 static void
531 stex_slave_destroy(struct scsi_device *sdev)
532 {
533 scsi_deactivate_tcq(sdev, 1);
534 }
535
536 static int
537 stex_queuecommand(struct scsi_cmnd *cmd, void (* done)(struct scsi_cmnd *))
538 {
539 struct st_hba *hba;
540 struct Scsi_Host *host;
541 unsigned int id,lun;
542 struct req_msg *req;
543 u16 tag;
544 host = cmd->device->host;
545 id = cmd->device->id;
546 lun = cmd->device->lun;
547 hba = (struct st_hba *) &host->hostdata[0];
548
549 switch (cmd->cmnd[0]) {
550 case MODE_SENSE_10:
551 {
552 static char ms10_caching_page[12] =
553 { 0, 0x12, 0, 0, 0, 0, 0, 0, 0x8, 0xa, 0x4, 0 };
554 unsigned char page;
555 page = cmd->cmnd[2] & 0x3f;
556 if (page == 0x8 || page == 0x3f) {
557 size_t cp_len = sizeof(ms10_caching_page);
558 stex_internal_copy(cmd, ms10_caching_page,
559 &cp_len, scsi_sg_count(cmd),
560 ST_TO_CMD);
561 cmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
562 done(cmd);
563 } else
564 stex_invalid_field(cmd, done);
565 return 0;
566 }
567 case REPORT_LUNS:
568 /*
569 * The shasta firmware does not report actual luns in the
570 * target, so fail the command to force sequential lun scan.
571 * Also, the console device does not support this command.
572 */
573 if (hba->cardtype == st_shasta || id == host->max_id - 1) {
574 stex_invalid_field(cmd, done);
575 return 0;
576 }
577 break;
578 case TEST_UNIT_READY:
579 if (id == host->max_id - 1) {
580 cmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
581 done(cmd);
582 return 0;
583 }
584 break;
585 case INQUIRY:
586 if (id != host->max_id - 1)
587 break;
588 if (lun == 0 && (cmd->cmnd[1] & INQUIRY_EVPD) == 0) {
589 size_t cp_len = sizeof(console_inq_page);
590 stex_internal_copy(cmd, console_inq_page,
591 &cp_len, scsi_sg_count(cmd),
592 ST_TO_CMD);
593 cmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8;
594 done(cmd);
595 } else
596 stex_invalid_field(cmd, done);
597 return 0;
598 case PASSTHRU_CMD:
599 if (cmd->cmnd[1] == PASSTHRU_GET_DRVVER) {
600 struct st_drvver ver;
601 size_t cp_len = sizeof(ver);
602 ver.major = ST_VER_MAJOR;
603 ver.minor = ST_VER_MINOR;
604 ver.oem = ST_OEM;
605 ver.build = ST_BUILD_VER;
606 ver.signature[0] = PASSTHRU_SIGNATURE;
607 ver.console_id = host->max_id - 1;
608 ver.host_no = hba->host->host_no;
609 stex_internal_copy(cmd, &ver, &cp_len,
610 scsi_sg_count(cmd), ST_TO_CMD);
611 cmd->result = sizeof(ver) == cp_len ?
612 DID_OK << 16 | COMMAND_COMPLETE << 8 :
613 DID_ERROR << 16 | COMMAND_COMPLETE << 8;
614 done(cmd);
615 return 0;
616 }
617 default:
618 break;
619 }
620
621 cmd->scsi_done = done;
622
623 tag = cmd->request->tag;
624
625 if (unlikely(tag >= host->can_queue))
626 return SCSI_MLQUEUE_HOST_BUSY;
627
628 req = stex_alloc_req(hba);
629
630 req->lun = lun;
631 req->target = id;
632
633 /* cdb */
634 memcpy(req->cdb, cmd->cmnd, STEX_CDB_LENGTH);
635
636 hba->ccb[tag].cmd = cmd;
637 hba->ccb[tag].sense_bufflen = SCSI_SENSE_BUFFERSIZE;
638 hba->ccb[tag].sense_buffer = cmd->sense_buffer;
639 hba->ccb[tag].req_type = 0;
640
641 if (cmd->sc_data_direction != DMA_NONE)
642 stex_map_sg(hba, req, &hba->ccb[tag]);
643
644 stex_send_cmd(hba, req, tag);
645 return 0;
646 }
647
648 static void stex_scsi_done(struct st_ccb *ccb)
649 {
650 struct scsi_cmnd *cmd = ccb->cmd;
651 int result;
652
653 if (ccb->srb_status == SRB_STATUS_SUCCESS || ccb->srb_status == 0) {
654 result = ccb->scsi_status;
655 switch (ccb->scsi_status) {
656 case SAM_STAT_GOOD:
657 result |= DID_OK << 16 | COMMAND_COMPLETE << 8;
658 break;
659 case SAM_STAT_CHECK_CONDITION:
660 result |= DRIVER_SENSE << 24;
661 break;
662 case SAM_STAT_BUSY:
663 result |= DID_BUS_BUSY << 16 | COMMAND_COMPLETE << 8;
664 break;
665 default:
666 result |= DID_ERROR << 16 | COMMAND_COMPLETE << 8;
667 break;
668 }
669 }
670 else if (ccb->srb_status & SRB_SEE_SENSE)
671 result = DRIVER_SENSE << 24 | SAM_STAT_CHECK_CONDITION;
672 else switch (ccb->srb_status) {
673 case SRB_STATUS_SELECTION_TIMEOUT:
674 result = DID_NO_CONNECT << 16 | COMMAND_COMPLETE << 8;
675 break;
676 case SRB_STATUS_BUSY:
677 result = DID_BUS_BUSY << 16 | COMMAND_COMPLETE << 8;
678 break;
679 case SRB_STATUS_INVALID_REQUEST:
680 case SRB_STATUS_ERROR:
681 default:
682 result = DID_ERROR << 16 | COMMAND_COMPLETE << 8;
683 break;
684 }
685
686 cmd->result = result;
687 cmd->scsi_done(cmd);
688 }
689
690 static void stex_copy_data(struct st_ccb *ccb,
691 struct status_msg *resp, unsigned int variable)
692 {
693 size_t count = variable;
694 if (resp->scsi_status != SAM_STAT_GOOD) {
695 if (ccb->sense_buffer != NULL)
696 memcpy(ccb->sense_buffer, resp->variable,
697 min(variable, ccb->sense_bufflen));
698 return;
699 }
700
701 if (ccb->cmd == NULL)
702 return;
703 stex_internal_copy(ccb->cmd,
704 resp->variable, &count, scsi_sg_count(ccb->cmd), ST_TO_CMD);
705 }
706
707 static void stex_ys_commands(struct st_hba *hba,
708 struct st_ccb *ccb, struct status_msg *resp)
709 {
710 size_t count;
711
712 if (ccb->cmd->cmnd[0] == MGT_CMD &&
713 resp->scsi_status != SAM_STAT_CHECK_CONDITION) {
714 scsi_set_resid(ccb->cmd, scsi_bufflen(ccb->cmd) -
715 le32_to_cpu(*(__le32 *)&resp->variable[0]));
716 return;
717 }
718
719 if (resp->srb_status != 0)
720 return;
721
722 /* determine inquiry command status by DeviceTypeQualifier */
723 if (ccb->cmd->cmnd[0] == INQUIRY &&
724 resp->scsi_status == SAM_STAT_GOOD) {
725 ST_INQ *inq_data;
726
727 count = STEX_EXTRA_SIZE;
728 stex_internal_copy(ccb->cmd, hba->copy_buffer,
729 &count, scsi_sg_count(ccb->cmd), ST_FROM_CMD);
730 inq_data = (ST_INQ *)hba->copy_buffer;
731 if (inq_data->DeviceTypeQualifier != 0)
732 ccb->srb_status = SRB_STATUS_SELECTION_TIMEOUT;
733 else
734 ccb->srb_status = SRB_STATUS_SUCCESS;
735 }
736 }
737
738 static void stex_mu_intr(struct st_hba *hba, u32 doorbell)
739 {
740 void __iomem *base = hba->mmio_base;
741 struct status_msg *resp;
742 struct st_ccb *ccb;
743 unsigned int size;
744 u16 tag;
745
746 if (!(doorbell & MU_OUTBOUND_DOORBELL_STATUSHEADCHANGED))
747 return;
748
749 /* status payloads */
750 hba->status_head = readl(base + OMR1);
751 if (unlikely(hba->status_head >= MU_STATUS_COUNT)) {
752 printk(KERN_WARNING DRV_NAME "(%s): invalid status head\n",
753 pci_name(hba->pdev));
754 return;
755 }
756
757 /*
758 * it's not a valid status payload if:
759 * 1. there are no pending requests(e.g. during init stage)
760 * 2. there are some pending requests, but the controller is in
761 * reset status, and its type is not st_yosemite
762 * firmware of st_yosemite in reset status will return pending requests
763 * to driver, so we allow it to pass
764 */
765 if (unlikely(hba->out_req_cnt <= 0 ||
766 (hba->mu_status == MU_STATE_RESETTING &&
767 hba->cardtype != st_yosemite))) {
768 hba->status_tail = hba->status_head;
769 goto update_status;
770 }
771
772 while (hba->status_tail != hba->status_head) {
773 resp = stex_get_status(hba);
774 tag = le16_to_cpu(resp->tag);
775 if (unlikely(tag >= hba->host->can_queue)) {
776 printk(KERN_WARNING DRV_NAME
777 "(%s): invalid tag\n", pci_name(hba->pdev));
778 continue;
779 }
780
781 ccb = &hba->ccb[tag];
782 if (hba->wait_ccb == ccb)
783 hba->wait_ccb = NULL;
784 if (unlikely(ccb->req == NULL)) {
785 printk(KERN_WARNING DRV_NAME
786 "(%s): lagging req\n", pci_name(hba->pdev));
787 hba->out_req_cnt--;
788 continue;
789 }
790
791 size = resp->payload_sz * sizeof(u32); /* payload size */
792 if (unlikely(size < sizeof(*resp) - STATUS_VAR_LEN ||
793 size > sizeof(*resp))) {
794 printk(KERN_WARNING DRV_NAME "(%s): bad status size\n",
795 pci_name(hba->pdev));
796 } else {
797 size -= sizeof(*resp) - STATUS_VAR_LEN; /* copy size */
798 if (size)
799 stex_copy_data(ccb, resp, size);
800 }
801
802 ccb->srb_status = resp->srb_status;
803 ccb->scsi_status = resp->scsi_status;
804
805 if (likely(ccb->cmd != NULL)) {
806 if (hba->cardtype == st_yosemite)
807 stex_ys_commands(hba, ccb, resp);
808
809 if (unlikely(ccb->cmd->cmnd[0] == PASSTHRU_CMD &&
810 ccb->cmd->cmnd[1] == PASSTHRU_GET_ADAPTER))
811 stex_controller_info(hba, ccb);
812
813 scsi_dma_unmap(ccb->cmd);
814 stex_scsi_done(ccb);
815 hba->out_req_cnt--;
816 } else if (ccb->req_type & PASSTHRU_REQ_TYPE) {
817 hba->out_req_cnt--;
818 if (ccb->req_type & PASSTHRU_REQ_NO_WAKEUP) {
819 ccb->req_type = 0;
820 continue;
821 }
822 ccb->req_type = 0;
823 if (waitqueue_active(&hba->waitq))
824 wake_up(&hba->waitq);
825 }
826 }
827
828 update_status:
829 writel(hba->status_head, base + IMR1);
830 readl(base + IMR1); /* flush */
831 }
832
833 static irqreturn_t stex_intr(int irq, void *__hba)
834 {
835 struct st_hba *hba = __hba;
836 void __iomem *base = hba->mmio_base;
837 u32 data;
838 unsigned long flags;
839 int handled = 0;
840
841 spin_lock_irqsave(hba->host->host_lock, flags);
842
843 data = readl(base + ODBL);
844
845 if (data && data != 0xffffffff) {
846 /* clear the interrupt */
847 writel(data, base + ODBL);
848 readl(base + ODBL); /* flush */
849 stex_mu_intr(hba, data);
850 handled = 1;
851 }
852
853 spin_unlock_irqrestore(hba->host->host_lock, flags);
854
855 return IRQ_RETVAL(handled);
856 }
857
858 static int stex_handshake(struct st_hba *hba)
859 {
860 void __iomem *base = hba->mmio_base;
861 struct handshake_frame *h;
862 dma_addr_t status_phys;
863 u32 data;
864 unsigned long before;
865
866 if (readl(base + OMR0) != MU_HANDSHAKE_SIGNATURE) {
867 writel(MU_INBOUND_DOORBELL_HANDSHAKE, base + IDBL);
868 readl(base + IDBL);
869 before = jiffies;
870 while (readl(base + OMR0) != MU_HANDSHAKE_SIGNATURE) {
871 if (time_after(jiffies, before + MU_MAX_DELAY * HZ)) {
872 printk(KERN_ERR DRV_NAME
873 "(%s): no handshake signature\n",
874 pci_name(hba->pdev));
875 return -1;
876 }
877 rmb();
878 msleep(1);
879 }
880 }
881
882 udelay(10);
883
884 data = readl(base + OMR1);
885 if ((data & 0xffff0000) == MU_HANDSHAKE_SIGNATURE_HALF) {
886 data &= 0x0000ffff;
887 if (hba->host->can_queue > data)
888 hba->host->can_queue = data;
889 }
890
891 h = (struct handshake_frame *)(hba->dma_mem + MU_REQ_BUFFER_SIZE);
892 h->rb_phy = cpu_to_le32(hba->dma_handle);
893 h->rb_phy_hi = cpu_to_le32((hba->dma_handle >> 16) >> 16);
894 h->req_sz = cpu_to_le16(sizeof(struct req_msg));
895 h->req_cnt = cpu_to_le16(MU_REQ_COUNT);
896 h->status_sz = cpu_to_le16(sizeof(struct status_msg));
897 h->status_cnt = cpu_to_le16(MU_STATUS_COUNT);
898 stex_gettime(&h->hosttime);
899 h->partner_type = HMU_PARTNER_TYPE;
900 if (hba->dma_size > STEX_BUFFER_SIZE) {
901 h->extra_offset = cpu_to_le32(STEX_BUFFER_SIZE);
902 h->extra_size = cpu_to_le32(ST_ADDITIONAL_MEM);
903 } else
904 h->extra_offset = h->extra_size = 0;
905
906 status_phys = hba->dma_handle + MU_REQ_BUFFER_SIZE;
907 writel(status_phys, base + IMR0);
908 readl(base + IMR0);
909 writel((status_phys >> 16) >> 16, base + IMR1);
910 readl(base + IMR1);
911
912 writel((status_phys >> 16) >> 16, base + OMR0); /* old fw compatible */
913 readl(base + OMR0);
914 writel(MU_INBOUND_DOORBELL_HANDSHAKE, base + IDBL);
915 readl(base + IDBL); /* flush */
916
917 udelay(10);
918 before = jiffies;
919 while (readl(base + OMR0) != MU_HANDSHAKE_SIGNATURE) {
920 if (time_after(jiffies, before + MU_MAX_DELAY * HZ)) {
921 printk(KERN_ERR DRV_NAME
922 "(%s): no signature after handshake frame\n",
923 pci_name(hba->pdev));
924 return -1;
925 }
926 rmb();
927 msleep(1);
928 }
929
930 writel(0, base + IMR0);
931 readl(base + IMR0);
932 writel(0, base + OMR0);
933 readl(base + OMR0);
934 writel(0, base + IMR1);
935 readl(base + IMR1);
936 writel(0, base + OMR1);
937 readl(base + OMR1); /* flush */
938 hba->mu_status = MU_STATE_STARTED;
939 return 0;
940 }
941
942 static int stex_abort(struct scsi_cmnd *cmd)
943 {
944 struct Scsi_Host *host = cmd->device->host;
945 struct st_hba *hba = (struct st_hba *)host->hostdata;
946 u16 tag = cmd->request->tag;
947 void __iomem *base;
948 u32 data;
949 int result = SUCCESS;
950 unsigned long flags;
951
952 printk(KERN_INFO DRV_NAME
953 "(%s): aborting command\n", pci_name(hba->pdev));
954 scsi_print_command(cmd);
955
956 base = hba->mmio_base;
957 spin_lock_irqsave(host->host_lock, flags);
958 if (tag < host->can_queue && hba->ccb[tag].cmd == cmd)
959 hba->wait_ccb = &hba->ccb[tag];
960 else {
961 for (tag = 0; tag < host->can_queue; tag++)
962 if (hba->ccb[tag].cmd == cmd) {
963 hba->wait_ccb = &hba->ccb[tag];
964 break;
965 }
966 if (tag >= host->can_queue)
967 goto out;
968 }
969
970 data = readl(base + ODBL);
971 if (data == 0 || data == 0xffffffff)
972 goto fail_out;
973
974 writel(data, base + ODBL);
975 readl(base + ODBL); /* flush */
976
977 stex_mu_intr(hba, data);
978
979 if (hba->wait_ccb == NULL) {
980 printk(KERN_WARNING DRV_NAME
981 "(%s): lost interrupt\n", pci_name(hba->pdev));
982 goto out;
983 }
984
985 fail_out:
986 scsi_dma_unmap(cmd);
987 hba->wait_ccb->req = NULL; /* nullify the req's future return */
988 hba->wait_ccb = NULL;
989 result = FAILED;
990 out:
991 spin_unlock_irqrestore(host->host_lock, flags);
992 return result;
993 }
994
995 static void stex_hard_reset(struct st_hba *hba)
996 {
997 struct pci_bus *bus;
998 int i;
999 u16 pci_cmd;
1000 u8 pci_bctl;
1001
1002 for (i = 0; i < 16; i++)
1003 pci_read_config_dword(hba->pdev, i * 4,
1004 &hba->pdev->saved_config_space[i]);
1005
1006 /* Reset secondary bus. Our controller(MU/ATU) is the only device on
1007 secondary bus. Consult Intel 80331/3 developer's manual for detail */
1008 bus = hba->pdev->bus;
1009 pci_read_config_byte(bus->self, PCI_BRIDGE_CONTROL, &pci_bctl);
1010 pci_bctl |= PCI_BRIDGE_CTL_BUS_RESET;
1011 pci_write_config_byte(bus->self, PCI_BRIDGE_CONTROL, pci_bctl);
1012
1013 /*
1014 * 1 ms may be enough for 8-port controllers. But 16-port controllers
1015 * require more time to finish bus reset. Use 100 ms here for safety
1016 */
1017 msleep(100);
1018 pci_bctl &= ~PCI_BRIDGE_CTL_BUS_RESET;
1019 pci_write_config_byte(bus->self, PCI_BRIDGE_CONTROL, pci_bctl);
1020
1021 for (i = 0; i < MU_HARD_RESET_WAIT; i++) {
1022 pci_read_config_word(hba->pdev, PCI_COMMAND, &pci_cmd);
1023 if (pci_cmd != 0xffff && (pci_cmd & PCI_COMMAND_MASTER))
1024 break;
1025 msleep(1);
1026 }
1027
1028 ssleep(5);
1029 for (i = 0; i < 16; i++)
1030 pci_write_config_dword(hba->pdev, i * 4,
1031 hba->pdev->saved_config_space[i]);
1032 }
1033
1034 static int stex_reset(struct scsi_cmnd *cmd)
1035 {
1036 struct st_hba *hba;
1037 unsigned long flags;
1038 unsigned long before;
1039 hba = (struct st_hba *) &cmd->device->host->hostdata[0];
1040
1041 printk(KERN_INFO DRV_NAME
1042 "(%s): resetting host\n", pci_name(hba->pdev));
1043 scsi_print_command(cmd);
1044
1045 hba->mu_status = MU_STATE_RESETTING;
1046
1047 if (hba->cardtype == st_shasta)
1048 stex_hard_reset(hba);
1049
1050 if (hba->cardtype != st_yosemite) {
1051 if (stex_handshake(hba)) {
1052 printk(KERN_WARNING DRV_NAME
1053 "(%s): resetting: handshake failed\n",
1054 pci_name(hba->pdev));
1055 return FAILED;
1056 }
1057 spin_lock_irqsave(hba->host->host_lock, flags);
1058 hba->req_head = 0;
1059 hba->req_tail = 0;
1060 hba->status_head = 0;
1061 hba->status_tail = 0;
1062 hba->out_req_cnt = 0;
1063 spin_unlock_irqrestore(hba->host->host_lock, flags);
1064 return SUCCESS;
1065 }
1066
1067 /* st_yosemite */
1068 writel(MU_INBOUND_DOORBELL_RESET, hba->mmio_base + IDBL);
1069 readl(hba->mmio_base + IDBL); /* flush */
1070 before = jiffies;
1071 while (hba->out_req_cnt > 0) {
1072 if (time_after(jiffies, before + ST_INTERNAL_TIMEOUT * HZ)) {
1073 printk(KERN_WARNING DRV_NAME
1074 "(%s): reset timeout\n", pci_name(hba->pdev));
1075 return FAILED;
1076 }
1077 msleep(1);
1078 }
1079
1080 hba->mu_status = MU_STATE_STARTED;
1081 return SUCCESS;
1082 }
1083
1084 static int stex_biosparam(struct scsi_device *sdev,
1085 struct block_device *bdev, sector_t capacity, int geom[])
1086 {
1087 int heads = 255, sectors = 63;
1088
1089 if (capacity < 0x200000) {
1090 heads = 64;
1091 sectors = 32;
1092 }
1093
1094 sector_div(capacity, heads * sectors);
1095
1096 geom[0] = heads;
1097 geom[1] = sectors;
1098 geom[2] = capacity;
1099
1100 return 0;
1101 }
1102
1103 static struct scsi_host_template driver_template = {
1104 .module = THIS_MODULE,
1105 .name = DRV_NAME,
1106 .proc_name = DRV_NAME,
1107 .bios_param = stex_biosparam,
1108 .queuecommand = stex_queuecommand,
1109 .slave_alloc = stex_slave_alloc,
1110 .slave_configure = stex_slave_config,
1111 .slave_destroy = stex_slave_destroy,
1112 .eh_abort_handler = stex_abort,
1113 .eh_host_reset_handler = stex_reset,
1114 .can_queue = ST_CAN_QUEUE,
1115 .this_id = -1,
1116 .sg_tablesize = ST_MAX_SG,
1117 .cmd_per_lun = ST_CMD_PER_LUN,
1118 };
1119
1120 static int stex_set_dma_mask(struct pci_dev * pdev)
1121 {
1122 int ret;
1123 if (!pci_set_dma_mask(pdev, DMA_64BIT_MASK)
1124 && !pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK))
1125 return 0;
1126 ret = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
1127 if (!ret)
1128 ret = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
1129 return ret;
1130 }
1131
1132 static int __devinit
1133 stex_probe(struct pci_dev *pdev, const struct pci_device_id *id)
1134 {
1135 struct st_hba *hba;
1136 struct Scsi_Host *host;
1137 int err;
1138
1139 err = pci_enable_device(pdev);
1140 if (err)
1141 return err;
1142
1143 pci_set_master(pdev);
1144
1145 host = scsi_host_alloc(&driver_template, sizeof(struct st_hba));
1146
1147 if (!host) {
1148 printk(KERN_ERR DRV_NAME "(%s): scsi_host_alloc failed\n",
1149 pci_name(pdev));
1150 err = -ENOMEM;
1151 goto out_disable;
1152 }
1153
1154 hba = (struct st_hba *)host->hostdata;
1155 memset(hba, 0, sizeof(struct st_hba));
1156
1157 err = pci_request_regions(pdev, DRV_NAME);
1158 if (err < 0) {
1159 printk(KERN_ERR DRV_NAME "(%s): request regions failed\n",
1160 pci_name(pdev));
1161 goto out_scsi_host_put;
1162 }
1163
1164 hba->mmio_base = ioremap_nocache(pci_resource_start(pdev, 0),
1165 pci_resource_len(pdev, 0));
1166 if ( !hba->mmio_base) {
1167 printk(KERN_ERR DRV_NAME "(%s): memory map failed\n",
1168 pci_name(pdev));
1169 err = -ENOMEM;
1170 goto out_release_regions;
1171 }
1172
1173 err = stex_set_dma_mask(pdev);
1174 if (err) {
1175 printk(KERN_ERR DRV_NAME "(%s): set dma mask failed\n",
1176 pci_name(pdev));
1177 goto out_iounmap;
1178 }
1179
1180 hba->cardtype = (unsigned int) id->driver_data;
1181 if (hba->cardtype == st_vsc && (pdev->subsystem_device & 0xf) == 0x1)
1182 hba->cardtype = st_vsc1;
1183 hba->dma_size = (hba->cardtype == st_vsc1) ?
1184 (STEX_BUFFER_SIZE + ST_ADDITIONAL_MEM) : (STEX_BUFFER_SIZE);
1185 hba->dma_mem = dma_alloc_coherent(&pdev->dev,
1186 hba->dma_size, &hba->dma_handle, GFP_KERNEL);
1187 if (!hba->dma_mem) {
1188 err = -ENOMEM;
1189 printk(KERN_ERR DRV_NAME "(%s): dma mem alloc failed\n",
1190 pci_name(pdev));
1191 goto out_iounmap;
1192 }
1193
1194 hba->status_buffer =
1195 (struct status_msg *)(hba->dma_mem + MU_REQ_BUFFER_SIZE);
1196 hba->copy_buffer = hba->dma_mem + MU_BUFFER_SIZE;
1197 hba->mu_status = MU_STATE_STARTING;
1198
1199 if (hba->cardtype == st_shasta) {
1200 host->max_lun = 8;
1201 host->max_id = 16 + 1;
1202 } else if (hba->cardtype == st_yosemite) {
1203 host->max_lun = 128;
1204 host->max_id = 1 + 1;
1205 } else {
1206 /* st_vsc and st_vsc1 */
1207 host->max_lun = 1;
1208 host->max_id = 128 + 1;
1209 }
1210 host->max_channel = 0;
1211 host->unique_id = host->host_no;
1212 host->max_cmd_len = STEX_CDB_LENGTH;
1213
1214 hba->host = host;
1215 hba->pdev = pdev;
1216 init_waitqueue_head(&hba->waitq);
1217
1218 err = request_irq(pdev->irq, stex_intr, IRQF_SHARED, DRV_NAME, hba);
1219 if (err) {
1220 printk(KERN_ERR DRV_NAME "(%s): request irq failed\n",
1221 pci_name(pdev));
1222 goto out_pci_free;
1223 }
1224
1225 err = stex_handshake(hba);
1226 if (err)
1227 goto out_free_irq;
1228
1229 err = scsi_init_shared_tag_map(host, host->can_queue);
1230 if (err) {
1231 printk(KERN_ERR DRV_NAME "(%s): init shared queue failed\n",
1232 pci_name(pdev));
1233 goto out_free_irq;
1234 }
1235
1236 pci_set_drvdata(pdev, hba);
1237
1238 err = scsi_add_host(host, &pdev->dev);
1239 if (err) {
1240 printk(KERN_ERR DRV_NAME "(%s): scsi_add_host failed\n",
1241 pci_name(pdev));
1242 goto out_free_irq;
1243 }
1244
1245 scsi_scan_host(host);
1246
1247 return 0;
1248
1249 out_free_irq:
1250 free_irq(pdev->irq, hba);
1251 out_pci_free:
1252 dma_free_coherent(&pdev->dev, hba->dma_size,
1253 hba->dma_mem, hba->dma_handle);
1254 out_iounmap:
1255 iounmap(hba->mmio_base);
1256 out_release_regions:
1257 pci_release_regions(pdev);
1258 out_scsi_host_put:
1259 scsi_host_put(host);
1260 out_disable:
1261 pci_disable_device(pdev);
1262
1263 return err;
1264 }
1265
1266 static void stex_hba_stop(struct st_hba *hba)
1267 {
1268 struct req_msg *req;
1269 unsigned long flags;
1270 unsigned long before;
1271 u16 tag = 0;
1272
1273 spin_lock_irqsave(hba->host->host_lock, flags);
1274 req = stex_alloc_req(hba);
1275 memset(req->cdb, 0, STEX_CDB_LENGTH);
1276
1277 if (hba->cardtype == st_yosemite) {
1278 req->cdb[0] = MGT_CMD;
1279 req->cdb[1] = MGT_CMD_SIGNATURE;
1280 req->cdb[2] = CTLR_CONFIG_CMD;
1281 req->cdb[3] = CTLR_SHUTDOWN;
1282 } else {
1283 req->cdb[0] = CONTROLLER_CMD;
1284 req->cdb[1] = CTLR_POWER_STATE_CHANGE;
1285 req->cdb[2] = CTLR_POWER_SAVING;
1286 }
1287
1288 hba->ccb[tag].cmd = NULL;
1289 hba->ccb[tag].sg_count = 0;
1290 hba->ccb[tag].sense_bufflen = 0;
1291 hba->ccb[tag].sense_buffer = NULL;
1292 hba->ccb[tag].req_type |= PASSTHRU_REQ_TYPE;
1293
1294 stex_send_cmd(hba, req, tag);
1295 spin_unlock_irqrestore(hba->host->host_lock, flags);
1296
1297 before = jiffies;
1298 while (hba->ccb[tag].req_type & PASSTHRU_REQ_TYPE) {
1299 if (time_after(jiffies, before + ST_INTERNAL_TIMEOUT * HZ))
1300 return;
1301 msleep(10);
1302 }
1303 }
1304
1305 static void stex_hba_free(struct st_hba *hba)
1306 {
1307 free_irq(hba->pdev->irq, hba);
1308
1309 iounmap(hba->mmio_base);
1310
1311 pci_release_regions(hba->pdev);
1312
1313 dma_free_coherent(&hba->pdev->dev, hba->dma_size,
1314 hba->dma_mem, hba->dma_handle);
1315 }
1316
1317 static void stex_remove(struct pci_dev *pdev)
1318 {
1319 struct st_hba *hba = pci_get_drvdata(pdev);
1320
1321 scsi_remove_host(hba->host);
1322
1323 pci_set_drvdata(pdev, NULL);
1324
1325 stex_hba_stop(hba);
1326
1327 stex_hba_free(hba);
1328
1329 scsi_host_put(hba->host);
1330
1331 pci_disable_device(pdev);
1332 }
1333
1334 static void stex_shutdown(struct pci_dev *pdev)
1335 {
1336 struct st_hba *hba = pci_get_drvdata(pdev);
1337
1338 stex_hba_stop(hba);
1339 }
1340
1341 static struct pci_device_id stex_pci_tbl[] = {
1342 /* st_shasta */
1343 { 0x105a, 0x8350, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
1344 st_shasta }, /* SuperTrak EX8350/8300/16350/16300 */
1345 { 0x105a, 0xc350, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
1346 st_shasta }, /* SuperTrak EX12350 */
1347 { 0x105a, 0x4302, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
1348 st_shasta }, /* SuperTrak EX4350 */
1349 { 0x105a, 0xe350, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
1350 st_shasta }, /* SuperTrak EX24350 */
1351
1352 /* st_vsc */
1353 { 0x105a, 0x7250, PCI_ANY_ID, PCI_ANY_ID, 0, 0, st_vsc },
1354
1355 /* st_yosemite */
1356 { 0x105a, 0x8650, PCI_ANY_ID, 0x4600, 0, 0,
1357 st_yosemite }, /* SuperTrak EX4650 */
1358 { 0x105a, 0x8650, PCI_ANY_ID, 0x4610, 0, 0,
1359 st_yosemite }, /* SuperTrak EX4650o */
1360 { 0x105a, 0x8650, PCI_ANY_ID, 0x8600, 0, 0,
1361 st_yosemite }, /* SuperTrak EX8650EL */
1362 { 0x105a, 0x8650, PCI_ANY_ID, 0x8601, 0, 0,
1363 st_yosemite }, /* SuperTrak EX8650 */
1364 { 0x105a, 0x8650, PCI_ANY_ID, 0x8602, 0, 0,
1365 st_yosemite }, /* SuperTrak EX8654 */
1366 { 0x105a, 0x8650, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
1367 st_yosemite }, /* generic st_yosemite */
1368 { } /* terminate list */
1369 };
1370 MODULE_DEVICE_TABLE(pci, stex_pci_tbl);
1371
1372 static struct pci_driver stex_pci_driver = {
1373 .name = DRV_NAME,
1374 .id_table = stex_pci_tbl,
1375 .probe = stex_probe,
1376 .remove = __devexit_p(stex_remove),
1377 .shutdown = stex_shutdown,
1378 };
1379
1380 static int __init stex_init(void)
1381 {
1382 printk(KERN_INFO DRV_NAME
1383 ": Promise SuperTrak EX Driver version: %s\n",
1384 ST_DRIVER_VERSION);
1385
1386 return pci_register_driver(&stex_pci_driver);
1387 }
1388
1389 static void __exit stex_exit(void)
1390 {
1391 pci_unregister_driver(&stex_pci_driver);
1392 }
1393
1394 module_init(stex_init);
1395 module_exit(stex_exit);
WRT350N Kernel Patches