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5a25ba16 JG |
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 | * | |
fb4f66be | 14 | * Version: 3.0.0.1 |
5a25ba16 JG |
15 | * |
16 | */ | |
17 | ||
18 | #include <linux/init.h> | |
19 | #include <linux/errno.h> | |
20 | #include <linux/kernel.h> | |
21 | #include <linux/delay.h> | |
22 | #include <linux/sched.h> | |
23 | #include <linux/time.h> | |
24 | #include <linux/pci.h> | |
25 | #include <linux/blkdev.h> | |
26 | #include <linux/interrupt.h> | |
27 | #include <linux/types.h> | |
28 | #include <linux/module.h> | |
29 | #include <linux/spinlock.h> | |
30 | #include <asm/io.h> | |
31 | #include <asm/irq.h> | |
32 | #include <asm/byteorder.h> | |
33 | #include <scsi/scsi.h> | |
34 | #include <scsi/scsi_device.h> | |
35 | #include <scsi/scsi_cmnd.h> | |
36 | #include <scsi/scsi_host.h> | |
cf355883 | 37 | #include <scsi/scsi_tcq.h> |
5a25ba16 JG |
38 | |
39 | #define DRV_NAME "stex" | |
fb4f66be EL |
40 | #define ST_DRIVER_VERSION "3.0.0.1" |
41 | #define ST_VER_MAJOR 3 | |
42 | #define ST_VER_MINOR 0 | |
5a25ba16 | 43 | #define ST_OEM 0 |
fb4f66be | 44 | #define ST_BUILD_VER 1 |
5a25ba16 JG |
45 | |
46 | enum { | |
47 | /* MU register offset */ | |
48 | IMR0 = 0x10, /* MU_INBOUND_MESSAGE_REG0 */ | |
49 | IMR1 = 0x14, /* MU_INBOUND_MESSAGE_REG1 */ | |
50 | OMR0 = 0x18, /* MU_OUTBOUND_MESSAGE_REG0 */ | |
51 | OMR1 = 0x1c, /* MU_OUTBOUND_MESSAGE_REG1 */ | |
52 | IDBL = 0x20, /* MU_INBOUND_DOORBELL */ | |
53 | IIS = 0x24, /* MU_INBOUND_INTERRUPT_STATUS */ | |
54 | IIM = 0x28, /* MU_INBOUND_INTERRUPT_MASK */ | |
55 | ODBL = 0x2c, /* MU_OUTBOUND_DOORBELL */ | |
56 | OIS = 0x30, /* MU_OUTBOUND_INTERRUPT_STATUS */ | |
57 | OIM = 0x3c, /* MU_OUTBOUND_INTERRUPT_MASK */ | |
58 | ||
59 | /* MU register value */ | |
60 | MU_INBOUND_DOORBELL_HANDSHAKE = 1, | |
61 | MU_INBOUND_DOORBELL_REQHEADCHANGED = 2, | |
62 | MU_INBOUND_DOORBELL_STATUSTAILCHANGED = 4, | |
63 | MU_INBOUND_DOORBELL_HMUSTOPPED = 8, | |
64 | MU_INBOUND_DOORBELL_RESET = 16, | |
65 | ||
66 | MU_OUTBOUND_DOORBELL_HANDSHAKE = 1, | |
67 | MU_OUTBOUND_DOORBELL_REQUESTTAILCHANGED = 2, | |
68 | MU_OUTBOUND_DOORBELL_STATUSHEADCHANGED = 4, | |
69 | MU_OUTBOUND_DOORBELL_BUSCHANGE = 8, | |
70 | MU_OUTBOUND_DOORBELL_HASEVENT = 16, | |
71 | ||
72 | /* MU status code */ | |
73 | MU_STATE_STARTING = 1, | |
74 | MU_STATE_FMU_READY_FOR_HANDSHAKE = 2, | |
75 | MU_STATE_SEND_HANDSHAKE_FRAME = 3, | |
76 | MU_STATE_STARTED = 4, | |
77 | MU_STATE_RESETTING = 5, | |
78 | ||
79 | MU_MAX_DELAY_TIME = 240000, | |
80 | MU_HANDSHAKE_SIGNATURE = 0x55aaaa55, | |
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, | |
5a25ba16 JG |
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_MAX_ARRAY_SUPPORTED = 16, | |
118 | ST_MAX_TARGET_NUM = (ST_MAX_ARRAY_SUPPORTED+1), | |
119 | ST_MAX_LUN_PER_TARGET = 16, | |
120 | ||
121 | st_shasta = 0, | |
122 | st_vsc = 1, | |
fb4f66be | 123 | st_yosemite = 2, |
5a25ba16 JG |
124 | |
125 | PASSTHRU_REQ_TYPE = 0x00000001, | |
126 | PASSTHRU_REQ_NO_WAKEUP = 0x00000100, | |
127 | ST_INTERNAL_TIMEOUT = 30, | |
128 | ||
fb4f66be EL |
129 | ST_TO_CMD = 0, |
130 | ST_FROM_CMD = 1, | |
131 | ||
5a25ba16 | 132 | /* vendor specific commands of Promise */ |
fb4f66be EL |
133 | MGT_CMD = 0xd8, |
134 | SINBAND_MGT_CMD = 0xd9, | |
5a25ba16 JG |
135 | ARRAY_CMD = 0xe0, |
136 | CONTROLLER_CMD = 0xe1, | |
137 | DEBUGGING_CMD = 0xe2, | |
138 | PASSTHRU_CMD = 0xe3, | |
139 | ||
140 | PASSTHRU_GET_ADAPTER = 0x05, | |
141 | PASSTHRU_GET_DRVVER = 0x10, | |
fb4f66be EL |
142 | |
143 | CTLR_CONFIG_CMD = 0x03, | |
144 | CTLR_SHUTDOWN = 0x0d, | |
145 | ||
5a25ba16 JG |
146 | CTLR_POWER_STATE_CHANGE = 0x0e, |
147 | CTLR_POWER_SAVING = 0x01, | |
148 | ||
149 | PASSTHRU_SIGNATURE = 0x4e415041, | |
fb4f66be | 150 | MGT_CMD_SIGNATURE = 0xba, |
5a25ba16 JG |
151 | |
152 | INQUIRY_EVPD = 0x01, | |
153 | }; | |
154 | ||
fb4f66be EL |
155 | /* SCSI inquiry data */ |
156 | typedef struct st_inq { | |
157 | u8 DeviceType :5; | |
158 | u8 DeviceTypeQualifier :3; | |
159 | u8 DeviceTypeModifier :7; | |
160 | u8 RemovableMedia :1; | |
161 | u8 Versions; | |
162 | u8 ResponseDataFormat :4; | |
163 | u8 HiSupport :1; | |
164 | u8 NormACA :1; | |
165 | u8 ReservedBit :1; | |
166 | u8 AERC :1; | |
167 | u8 AdditionalLength; | |
168 | u8 Reserved[2]; | |
169 | u8 SoftReset :1; | |
170 | u8 CommandQueue :1; | |
171 | u8 Reserved2 :1; | |
172 | u8 LinkedCommands :1; | |
173 | u8 Synchronous :1; | |
174 | u8 Wide16Bit :1; | |
175 | u8 Wide32Bit :1; | |
176 | u8 RelativeAddressing :1; | |
177 | u8 VendorId[8]; | |
178 | u8 ProductId[16]; | |
179 | u8 ProductRevisionLevel[4]; | |
180 | u8 VendorSpecific[20]; | |
181 | u8 Reserved3[40]; | |
182 | } ST_INQ; | |
183 | ||
5a25ba16 JG |
184 | struct st_sgitem { |
185 | u8 ctrl; /* SG_CF_xxx */ | |
186 | u8 reserved[3]; | |
187 | __le32 count; | |
188 | __le32 addr; | |
189 | __le32 addr_hi; | |
190 | }; | |
191 | ||
192 | struct st_sgtable { | |
193 | __le16 sg_count; | |
194 | __le16 max_sg_count; | |
195 | __le32 sz_in_byte; | |
196 | struct st_sgitem table[ST_MAX_SG]; | |
197 | }; | |
198 | ||
199 | struct handshake_frame { | |
200 | __le32 rb_phy; /* request payload queue physical address */ | |
201 | __le32 rb_phy_hi; | |
202 | __le16 req_sz; /* size of each request payload */ | |
203 | __le16 req_cnt; /* count of reqs the buffer can hold */ | |
204 | __le16 status_sz; /* size of each status payload */ | |
205 | __le16 status_cnt; /* count of status the buffer can hold */ | |
206 | __le32 hosttime; /* seconds from Jan 1, 1970 (GMT) */ | |
207 | __le32 hosttime_hi; | |
208 | u8 partner_type; /* who sends this frame */ | |
209 | u8 reserved0[7]; | |
210 | __le32 partner_ver_major; | |
211 | __le32 partner_ver_minor; | |
212 | __le32 partner_ver_oem; | |
213 | __le32 partner_ver_build; | |
214 | u32 reserved1[4]; | |
215 | }; | |
216 | ||
217 | struct req_msg { | |
218 | __le16 tag; | |
219 | u8 lun; | |
220 | u8 target; | |
221 | u8 task_attr; | |
222 | u8 task_manage; | |
223 | u8 prd_entry; | |
f903d7b7 | 224 | u8 payload_sz; /* payload size in 4-byte, not used */ |
5a25ba16 JG |
225 | u8 cdb[STEX_CDB_LENGTH]; |
226 | u8 variable[REQ_VARIABLE_LEN]; | |
227 | }; | |
228 | ||
229 | struct status_msg { | |
230 | __le16 tag; | |
231 | u8 lun; | |
232 | u8 target; | |
233 | u8 srb_status; | |
234 | u8 scsi_status; | |
235 | u8 reserved; | |
236 | u8 payload_sz; /* payload size in 4-byte */ | |
237 | u8 variable[STATUS_VAR_LEN]; | |
238 | }; | |
239 | ||
240 | struct ver_info { | |
241 | u32 major; | |
242 | u32 minor; | |
243 | u32 oem; | |
244 | u32 build; | |
245 | u32 reserved[2]; | |
246 | }; | |
247 | ||
248 | struct st_frame { | |
249 | u32 base[6]; | |
250 | u32 rom_addr; | |
251 | ||
252 | struct ver_info drv_ver; | |
253 | struct ver_info bios_ver; | |
254 | ||
255 | u32 bus; | |
256 | u32 slot; | |
257 | u32 irq_level; | |
258 | u32 irq_vec; | |
259 | u32 id; | |
260 | u32 subid; | |
261 | ||
262 | u32 dimm_size; | |
263 | u8 dimm_type; | |
264 | u8 reserved[3]; | |
265 | ||
266 | u32 channel; | |
267 | u32 reserved1; | |
268 | }; | |
269 | ||
270 | struct st_drvver { | |
271 | u32 major; | |
272 | u32 minor; | |
273 | u32 oem; | |
274 | u32 build; | |
275 | u32 signature[2]; | |
276 | u8 console_id; | |
277 | u8 host_no; | |
278 | u8 reserved0[2]; | |
279 | u32 reserved[3]; | |
280 | }; | |
281 | ||
282 | #define MU_REQ_BUFFER_SIZE (MU_REQ_COUNT * sizeof(struct req_msg)) | |
283 | #define MU_STATUS_BUFFER_SIZE (MU_STATUS_COUNT * sizeof(struct status_msg)) | |
284 | #define MU_BUFFER_SIZE (MU_REQ_BUFFER_SIZE + MU_STATUS_BUFFER_SIZE) | |
fb4f66be EL |
285 | #define STEX_EXTRA_SIZE max(sizeof(struct st_frame), sizeof(ST_INQ)) |
286 | #define STEX_BUFFER_SIZE (MU_BUFFER_SIZE + STEX_EXTRA_SIZE) | |
5a25ba16 JG |
287 | |
288 | struct st_ccb { | |
289 | struct req_msg *req; | |
290 | struct scsi_cmnd *cmd; | |
291 | ||
292 | void *sense_buffer; | |
293 | unsigned int sense_bufflen; | |
294 | int sg_count; | |
295 | ||
296 | u32 req_type; | |
297 | u8 srb_status; | |
298 | u8 scsi_status; | |
299 | }; | |
300 | ||
301 | struct st_hba { | |
302 | void __iomem *mmio_base; /* iomapped PCI memory space */ | |
303 | void *dma_mem; | |
304 | dma_addr_t dma_handle; | |
305 | ||
306 | struct Scsi_Host *host; | |
307 | struct pci_dev *pdev; | |
308 | ||
5a25ba16 JG |
309 | u32 req_head; |
310 | u32 req_tail; | |
311 | u32 status_head; | |
312 | u32 status_tail; | |
313 | ||
314 | struct status_msg *status_buffer; | |
315 | void *copy_buffer; /* temp buffer for driver-handled commands */ | |
316 | struct st_ccb ccb[MU_MAX_REQUEST]; | |
317 | struct st_ccb *wait_ccb; | |
318 | wait_queue_head_t waitq; | |
319 | ||
320 | unsigned int mu_status; | |
321 | int out_req_cnt; | |
322 | ||
323 | unsigned int cardtype; | |
324 | }; | |
325 | ||
326 | static const char console_inq_page[] = | |
327 | { | |
328 | 0x03,0x00,0x03,0x03,0xFA,0x00,0x00,0x30, | |
329 | 0x50,0x72,0x6F,0x6D,0x69,0x73,0x65,0x20, /* "Promise " */ | |
330 | 0x52,0x41,0x49,0x44,0x20,0x43,0x6F,0x6E, /* "RAID Con" */ | |
331 | 0x73,0x6F,0x6C,0x65,0x20,0x20,0x20,0x20, /* "sole " */ | |
332 | 0x31,0x2E,0x30,0x30,0x20,0x20,0x20,0x20, /* "1.00 " */ | |
333 | 0x53,0x58,0x2F,0x52,0x53,0x41,0x46,0x2D, /* "SX/RSAF-" */ | |
334 | 0x54,0x45,0x31,0x2E,0x30,0x30,0x20,0x20, /* "TE1.00 " */ | |
335 | 0x0C,0x20,0x20,0x20,0x20,0x20,0x20,0x20 | |
336 | }; | |
337 | ||
338 | MODULE_AUTHOR("Ed Lin"); | |
339 | MODULE_DESCRIPTION("Promise Technology SuperTrak EX Controllers"); | |
340 | MODULE_LICENSE("GPL"); | |
341 | MODULE_VERSION(ST_DRIVER_VERSION); | |
342 | ||
343 | static void stex_gettime(__le32 *time) | |
344 | { | |
345 | struct timeval tv; | |
346 | do_gettimeofday(&tv); | |
347 | ||
348 | *time = cpu_to_le32(tv.tv_sec & 0xffffffff); | |
349 | *(time + 1) = cpu_to_le32((tv.tv_sec >> 16) >> 16); | |
350 | } | |
351 | ||
5a25ba16 JG |
352 | static struct status_msg *stex_get_status(struct st_hba *hba) |
353 | { | |
354 | struct status_msg *status = | |
355 | hba->status_buffer + hba->status_tail; | |
356 | ||
357 | ++hba->status_tail; | |
358 | hba->status_tail %= MU_STATUS_COUNT; | |
359 | ||
360 | return status; | |
361 | } | |
362 | ||
363 | static void stex_set_sense(struct scsi_cmnd *cmd, u8 sk, u8 asc, u8 ascq) | |
364 | { | |
365 | cmd->result = (DRIVER_SENSE << 24) | SAM_STAT_CHECK_CONDITION; | |
366 | ||
367 | cmd->sense_buffer[0] = 0x70; /* fixed format, current */ | |
368 | cmd->sense_buffer[2] = sk; | |
369 | cmd->sense_buffer[7] = 18 - 8; /* additional sense length */ | |
370 | cmd->sense_buffer[12] = asc; | |
371 | cmd->sense_buffer[13] = ascq; | |
372 | } | |
373 | ||
374 | static void stex_invalid_field(struct scsi_cmnd *cmd, | |
375 | void (*done)(struct scsi_cmnd *)) | |
376 | { | |
377 | /* "Invalid field in cbd" */ | |
378 | stex_set_sense(cmd, ILLEGAL_REQUEST, 0x24, 0x0); | |
379 | done(cmd); | |
380 | } | |
381 | ||
382 | static struct req_msg *stex_alloc_req(struct st_hba *hba) | |
383 | { | |
384 | struct req_msg *req = ((struct req_msg *)hba->dma_mem) + | |
385 | hba->req_head; | |
386 | ||
387 | ++hba->req_head; | |
388 | hba->req_head %= MU_REQ_COUNT; | |
389 | ||
390 | return req; | |
391 | } | |
392 | ||
393 | static int stex_map_sg(struct st_hba *hba, | |
394 | struct req_msg *req, struct st_ccb *ccb) | |
395 | { | |
396 | struct pci_dev *pdev = hba->pdev; | |
397 | struct scsi_cmnd *cmd; | |
398 | dma_addr_t dma_handle; | |
399 | struct scatterlist *src; | |
400 | struct st_sgtable *dst; | |
401 | int i; | |
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(cmd->request_bufflen); | |
407 | ||
408 | if (cmd->use_sg) { | |
409 | int n_elem; | |
410 | ||
411 | src = (struct scatterlist *) cmd->request_buffer; | |
412 | n_elem = pci_map_sg(pdev, src, | |
413 | cmd->use_sg, cmd->sc_data_direction); | |
414 | if (n_elem <= 0) | |
415 | return -EIO; | |
416 | ||
417 | ccb->sg_count = n_elem; | |
418 | dst->sg_count = cpu_to_le16((u16)n_elem); | |
419 | ||
420 | for (i = 0; i < n_elem; i++, src++) { | |
421 | dst->table[i].count = cpu_to_le32((u32)sg_dma_len(src)); | |
422 | dst->table[i].addr = | |
423 | cpu_to_le32(sg_dma_address(src) & 0xffffffff); | |
424 | dst->table[i].addr_hi = | |
425 | cpu_to_le32((sg_dma_address(src) >> 16) >> 16); | |
426 | dst->table[i].ctrl = SG_CF_64B | SG_CF_HOST; | |
427 | } | |
428 | dst->table[--i].ctrl |= SG_CF_EOT; | |
429 | return 0; | |
430 | } | |
431 | ||
432 | dma_handle = pci_map_single(pdev, cmd->request_buffer, | |
433 | cmd->request_bufflen, cmd->sc_data_direction); | |
434 | cmd->SCp.dma_handle = dma_handle; | |
435 | ||
436 | ccb->sg_count = 1; | |
437 | dst->sg_count = cpu_to_le16(1); | |
438 | dst->table[0].addr = cpu_to_le32(dma_handle & 0xffffffff); | |
439 | dst->table[0].addr_hi = cpu_to_le32((dma_handle >> 16) >> 16); | |
440 | dst->table[0].count = cpu_to_le32((u32)cmd->request_bufflen); | |
441 | dst->table[0].ctrl = SG_CF_EOT | SG_CF_64B | SG_CF_HOST; | |
442 | ||
443 | return 0; | |
444 | } | |
445 | ||
446 | static void stex_internal_copy(struct scsi_cmnd *cmd, | |
fb4f66be | 447 | const void *src, size_t *count, int sg_count, int direction) |
5a25ba16 JG |
448 | { |
449 | size_t lcount; | |
450 | size_t len; | |
451 | void *s, *d, *base = NULL; | |
452 | if (*count > cmd->request_bufflen) | |
453 | *count = cmd->request_bufflen; | |
454 | lcount = *count; | |
455 | while (lcount) { | |
456 | len = lcount; | |
457 | s = (void *)src; | |
458 | if (cmd->use_sg) { | |
459 | size_t offset = *count - lcount; | |
460 | s += offset; | |
461 | base = scsi_kmap_atomic_sg(cmd->request_buffer, | |
462 | sg_count, &offset, &len); | |
463 | if (base == NULL) { | |
464 | *count -= lcount; | |
465 | return; | |
466 | } | |
467 | d = base + offset; | |
468 | } else | |
469 | d = cmd->request_buffer; | |
470 | ||
fb4f66be EL |
471 | if (direction == ST_TO_CMD) |
472 | memcpy(d, s, len); | |
473 | else | |
474 | memcpy(s, d, len); | |
5a25ba16 JG |
475 | |
476 | lcount -= len; | |
477 | if (cmd->use_sg) | |
478 | scsi_kunmap_atomic_sg(base); | |
479 | } | |
480 | } | |
481 | ||
482 | static int stex_direct_copy(struct scsi_cmnd *cmd, | |
483 | const void *src, size_t count) | |
484 | { | |
485 | struct st_hba *hba = (struct st_hba *) &cmd->device->host->hostdata[0]; | |
486 | size_t cp_len = count; | |
487 | int n_elem = 0; | |
488 | ||
489 | if (cmd->use_sg) { | |
490 | n_elem = pci_map_sg(hba->pdev, cmd->request_buffer, | |
491 | cmd->use_sg, cmd->sc_data_direction); | |
492 | if (n_elem <= 0) | |
493 | return 0; | |
494 | } | |
495 | ||
fb4f66be | 496 | stex_internal_copy(cmd, src, &cp_len, n_elem, ST_TO_CMD); |
5a25ba16 JG |
497 | |
498 | if (cmd->use_sg) | |
499 | pci_unmap_sg(hba->pdev, cmd->request_buffer, | |
500 | cmd->use_sg, cmd->sc_data_direction); | |
501 | return cp_len == count; | |
502 | } | |
503 | ||
504 | static void stex_controller_info(struct st_hba *hba, struct st_ccb *ccb) | |
505 | { | |
506 | struct st_frame *p; | |
507 | size_t count = sizeof(struct st_frame); | |
508 | ||
509 | p = hba->copy_buffer; | |
510 | memset(p->base, 0, sizeof(u32)*6); | |
511 | *(unsigned long *)(p->base) = pci_resource_start(hba->pdev, 0); | |
512 | p->rom_addr = 0; | |
513 | ||
514 | p->drv_ver.major = ST_VER_MAJOR; | |
515 | p->drv_ver.minor = ST_VER_MINOR; | |
516 | p->drv_ver.oem = ST_OEM; | |
517 | p->drv_ver.build = ST_BUILD_VER; | |
518 | ||
519 | p->bus = hba->pdev->bus->number; | |
520 | p->slot = hba->pdev->devfn; | |
521 | p->irq_level = 0; | |
522 | p->irq_vec = hba->pdev->irq; | |
523 | p->id = hba->pdev->vendor << 16 | hba->pdev->device; | |
524 | p->subid = | |
525 | hba->pdev->subsystem_vendor << 16 | hba->pdev->subsystem_device; | |
526 | ||
fb4f66be | 527 | stex_internal_copy(ccb->cmd, p, &count, ccb->sg_count, ST_TO_CMD); |
5a25ba16 JG |
528 | } |
529 | ||
530 | static void | |
531 | stex_send_cmd(struct st_hba *hba, struct req_msg *req, u16 tag) | |
532 | { | |
533 | req->tag = cpu_to_le16(tag); | |
534 | req->task_attr = TASK_ATTRIBUTE_SIMPLE; | |
535 | req->task_manage = 0; /* not supported yet */ | |
5a25ba16 JG |
536 | |
537 | hba->ccb[tag].req = req; | |
538 | hba->out_req_cnt++; | |
539 | ||
540 | writel(hba->req_head, hba->mmio_base + IMR0); | |
541 | writel(MU_INBOUND_DOORBELL_REQHEADCHANGED, hba->mmio_base + IDBL); | |
542 | readl(hba->mmio_base + IDBL); /* flush */ | |
543 | } | |
544 | ||
cf355883 EL |
545 | static int |
546 | stex_slave_alloc(struct scsi_device *sdev) | |
547 | { | |
548 | /* Cheat: usually extracted from Inquiry data */ | |
549 | sdev->tagged_supported = 1; | |
550 | ||
551 | scsi_activate_tcq(sdev, sdev->host->can_queue); | |
552 | ||
553 | return 0; | |
554 | } | |
555 | ||
5a25ba16 JG |
556 | static int |
557 | stex_slave_config(struct scsi_device *sdev) | |
558 | { | |
559 | sdev->use_10_for_rw = 1; | |
560 | sdev->use_10_for_ms = 1; | |
561 | sdev->timeout = 60 * HZ; | |
cf355883 EL |
562 | sdev->tagged_supported = 1; |
563 | ||
5a25ba16 JG |
564 | return 0; |
565 | } | |
566 | ||
567 | static void | |
568 | stex_slave_destroy(struct scsi_device *sdev) | |
569 | { | |
cf355883 | 570 | scsi_deactivate_tcq(sdev, 1); |
5a25ba16 JG |
571 | } |
572 | ||
573 | static int | |
574 | stex_queuecommand(struct scsi_cmnd *cmd, void (* done)(struct scsi_cmnd *)) | |
575 | { | |
576 | struct st_hba *hba; | |
577 | struct Scsi_Host *host; | |
578 | unsigned int id,lun; | |
579 | struct req_msg *req; | |
580 | u16 tag; | |
581 | host = cmd->device->host; | |
582 | id = cmd->device->id; | |
583 | lun = cmd->device->channel; /* firmware lun issue work around */ | |
584 | hba = (struct st_hba *) &host->hostdata[0]; | |
585 | ||
586 | switch (cmd->cmnd[0]) { | |
587 | case MODE_SENSE_10: | |
588 | { | |
589 | static char ms10_caching_page[12] = | |
590 | { 0, 0x12, 0, 0, 0, 0, 0, 0, 0x8, 0xa, 0x4, 0 }; | |
591 | unsigned char page; | |
592 | page = cmd->cmnd[2] & 0x3f; | |
593 | if (page == 0x8 || page == 0x3f) { | |
594 | stex_direct_copy(cmd, ms10_caching_page, | |
595 | sizeof(ms10_caching_page)); | |
596 | cmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8; | |
597 | done(cmd); | |
598 | } else | |
599 | stex_invalid_field(cmd, done); | |
600 | return 0; | |
601 | } | |
602 | case INQUIRY: | |
603 | if (id != ST_MAX_ARRAY_SUPPORTED) | |
604 | break; | |
605 | if (lun == 0 && (cmd->cmnd[1] & INQUIRY_EVPD) == 0) { | |
606 | stex_direct_copy(cmd, console_inq_page, | |
607 | sizeof(console_inq_page)); | |
608 | cmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8; | |
609 | done(cmd); | |
610 | } else | |
611 | stex_invalid_field(cmd, done); | |
612 | return 0; | |
613 | case PASSTHRU_CMD: | |
614 | if (cmd->cmnd[1] == PASSTHRU_GET_DRVVER) { | |
615 | struct st_drvver ver; | |
616 | ver.major = ST_VER_MAJOR; | |
617 | ver.minor = ST_VER_MINOR; | |
618 | ver.oem = ST_OEM; | |
619 | ver.build = ST_BUILD_VER; | |
620 | ver.signature[0] = PASSTHRU_SIGNATURE; | |
621 | ver.console_id = ST_MAX_ARRAY_SUPPORTED; | |
622 | ver.host_no = hba->host->host_no; | |
623 | cmd->result = stex_direct_copy(cmd, &ver, sizeof(ver)) ? | |
624 | DID_OK << 16 | COMMAND_COMPLETE << 8 : | |
625 | DID_ERROR << 16 | COMMAND_COMPLETE << 8; | |
626 | done(cmd); | |
627 | return 0; | |
628 | } | |
629 | default: | |
630 | break; | |
631 | } | |
632 | ||
633 | cmd->scsi_done = done; | |
634 | ||
cf355883 EL |
635 | tag = cmd->request->tag; |
636 | ||
637 | if (unlikely(tag >= host->can_queue)) | |
5a25ba16 JG |
638 | return SCSI_MLQUEUE_HOST_BUSY; |
639 | ||
640 | req = stex_alloc_req(hba); | |
fb4f66be EL |
641 | |
642 | if (hba->cardtype == st_yosemite) { | |
643 | req->lun = lun * (ST_MAX_TARGET_NUM - 1) + id; | |
644 | req->target = 0; | |
645 | } else { | |
646 | req->lun = lun; | |
647 | req->target = id; | |
648 | } | |
5a25ba16 JG |
649 | |
650 | /* cdb */ | |
651 | memcpy(req->cdb, cmd->cmnd, STEX_CDB_LENGTH); | |
652 | ||
653 | hba->ccb[tag].cmd = cmd; | |
654 | hba->ccb[tag].sense_bufflen = SCSI_SENSE_BUFFERSIZE; | |
655 | hba->ccb[tag].sense_buffer = cmd->sense_buffer; | |
656 | hba->ccb[tag].req_type = 0; | |
657 | ||
658 | if (cmd->sc_data_direction != DMA_NONE) | |
659 | stex_map_sg(hba, req, &hba->ccb[tag]); | |
660 | ||
661 | stex_send_cmd(hba, req, tag); | |
662 | return 0; | |
663 | } | |
664 | ||
665 | static void stex_unmap_sg(struct st_hba *hba, struct scsi_cmnd *cmd) | |
666 | { | |
667 | if (cmd->sc_data_direction != DMA_NONE) { | |
668 | if (cmd->use_sg) | |
669 | pci_unmap_sg(hba->pdev, cmd->request_buffer, | |
670 | cmd->use_sg, cmd->sc_data_direction); | |
671 | else | |
672 | pci_unmap_single(hba->pdev, cmd->SCp.dma_handle, | |
673 | cmd->request_bufflen, cmd->sc_data_direction); | |
674 | } | |
675 | } | |
676 | ||
677 | static void stex_scsi_done(struct st_ccb *ccb) | |
678 | { | |
679 | struct scsi_cmnd *cmd = ccb->cmd; | |
680 | int result; | |
681 | ||
682 | if (ccb->srb_status == SRB_STATUS_SUCCESS || ccb->srb_status == 0) { | |
683 | result = ccb->scsi_status; | |
684 | switch (ccb->scsi_status) { | |
685 | case SAM_STAT_GOOD: | |
686 | result |= DID_OK << 16 | COMMAND_COMPLETE << 8; | |
687 | break; | |
688 | case SAM_STAT_CHECK_CONDITION: | |
689 | result |= DRIVER_SENSE << 24; | |
690 | break; | |
691 | case SAM_STAT_BUSY: | |
692 | result |= DID_BUS_BUSY << 16 | COMMAND_COMPLETE << 8; | |
693 | break; | |
694 | default: | |
695 | result |= DID_ERROR << 16 | COMMAND_COMPLETE << 8; | |
696 | break; | |
697 | } | |
698 | } | |
699 | else if (ccb->srb_status & SRB_SEE_SENSE) | |
700 | result = DRIVER_SENSE << 24 | SAM_STAT_CHECK_CONDITION; | |
701 | else switch (ccb->srb_status) { | |
702 | case SRB_STATUS_SELECTION_TIMEOUT: | |
703 | result = DID_NO_CONNECT << 16 | COMMAND_COMPLETE << 8; | |
704 | break; | |
705 | case SRB_STATUS_BUSY: | |
706 | result = DID_BUS_BUSY << 16 | COMMAND_COMPLETE << 8; | |
707 | break; | |
708 | case SRB_STATUS_INVALID_REQUEST: | |
709 | case SRB_STATUS_ERROR: | |
710 | default: | |
711 | result = DID_ERROR << 16 | COMMAND_COMPLETE << 8; | |
712 | break; | |
713 | } | |
714 | ||
715 | cmd->result = result; | |
716 | cmd->scsi_done(cmd); | |
717 | } | |
718 | ||
719 | static void stex_copy_data(struct st_ccb *ccb, | |
720 | struct status_msg *resp, unsigned int variable) | |
721 | { | |
722 | size_t count = variable; | |
723 | if (resp->scsi_status != SAM_STAT_GOOD) { | |
724 | if (ccb->sense_buffer != NULL) | |
725 | memcpy(ccb->sense_buffer, resp->variable, | |
726 | min(variable, ccb->sense_bufflen)); | |
727 | return; | |
728 | } | |
729 | ||
730 | if (ccb->cmd == NULL) | |
731 | return; | |
fb4f66be EL |
732 | stex_internal_copy(ccb->cmd, |
733 | resp->variable, &count, ccb->sg_count, ST_TO_CMD); | |
734 | } | |
735 | ||
736 | static void stex_ys_commands(struct st_hba *hba, | |
737 | struct st_ccb *ccb, struct status_msg *resp) | |
738 | { | |
739 | size_t count; | |
740 | ||
741 | if (ccb->cmd->cmnd[0] == MGT_CMD && | |
742 | resp->scsi_status != SAM_STAT_CHECK_CONDITION) { | |
743 | ccb->cmd->request_bufflen = | |
744 | le32_to_cpu(*(__le32 *)&resp->variable[0]); | |
745 | return; | |
746 | } | |
747 | ||
748 | if (resp->srb_status != 0) | |
749 | return; | |
750 | ||
751 | /* determine inquiry command status by DeviceTypeQualifier */ | |
752 | if (ccb->cmd->cmnd[0] == INQUIRY && | |
753 | resp->scsi_status == SAM_STAT_GOOD) { | |
754 | ST_INQ *inq_data; | |
755 | ||
756 | count = STEX_EXTRA_SIZE; | |
757 | stex_internal_copy(ccb->cmd, hba->copy_buffer, | |
758 | &count, ccb->sg_count, ST_FROM_CMD); | |
759 | inq_data = (ST_INQ *)hba->copy_buffer; | |
760 | if (inq_data->DeviceTypeQualifier != 0) | |
761 | ccb->srb_status = SRB_STATUS_SELECTION_TIMEOUT; | |
762 | else | |
763 | ccb->srb_status = SRB_STATUS_SUCCESS; | |
764 | } else if (ccb->cmd->cmnd[0] == REPORT_LUNS) { | |
765 | u8 *report_lun_data = (u8 *)hba->copy_buffer; | |
766 | ||
767 | count = STEX_EXTRA_SIZE; | |
768 | stex_internal_copy(ccb->cmd, report_lun_data, | |
769 | &count, ccb->sg_count, ST_FROM_CMD); | |
770 | if (report_lun_data[2] || report_lun_data[3]) { | |
771 | report_lun_data[2] = 0x00; | |
772 | report_lun_data[3] = 0x08; | |
773 | stex_internal_copy(ccb->cmd, report_lun_data, | |
774 | &count, ccb->sg_count, ST_TO_CMD); | |
775 | } | |
776 | } | |
5a25ba16 JG |
777 | } |
778 | ||
779 | static void stex_mu_intr(struct st_hba *hba, u32 doorbell) | |
780 | { | |
781 | void __iomem *base = hba->mmio_base; | |
782 | struct status_msg *resp; | |
783 | struct st_ccb *ccb; | |
784 | unsigned int size; | |
785 | u16 tag; | |
786 | ||
787 | if (!(doorbell & MU_OUTBOUND_DOORBELL_STATUSHEADCHANGED)) | |
788 | return; | |
789 | ||
790 | /* status payloads */ | |
791 | hba->status_head = readl(base + OMR1); | |
792 | if (unlikely(hba->status_head >= MU_STATUS_COUNT)) { | |
793 | printk(KERN_WARNING DRV_NAME "(%s): invalid status head\n", | |
794 | pci_name(hba->pdev)); | |
795 | return; | |
796 | } | |
797 | ||
fb4f66be EL |
798 | /* |
799 | * it's not a valid status payload if: | |
800 | * 1. there are no pending requests(e.g. during init stage) | |
801 | * 2. there are some pending requests, but the controller is in | |
802 | * reset status, and its type is not st_yosemite | |
803 | * firmware of st_yosemite in reset status will return pending requests | |
804 | * to driver, so we allow it to pass | |
805 | */ | |
806 | if (unlikely(hba->out_req_cnt <= 0 || | |
807 | (hba->mu_status == MU_STATE_RESETTING && | |
808 | hba->cardtype != st_yosemite))) { | |
5a25ba16 JG |
809 | hba->status_tail = hba->status_head; |
810 | goto update_status; | |
811 | } | |
812 | ||
813 | while (hba->status_tail != hba->status_head) { | |
814 | resp = stex_get_status(hba); | |
815 | tag = le16_to_cpu(resp->tag); | |
cf355883 | 816 | if (unlikely(tag >= hba->host->can_queue)) { |
5a25ba16 JG |
817 | printk(KERN_WARNING DRV_NAME |
818 | "(%s): invalid tag\n", pci_name(hba->pdev)); | |
819 | continue; | |
820 | } | |
5a25ba16 | 821 | |
5a25ba16 JG |
822 | ccb = &hba->ccb[tag]; |
823 | if (hba->wait_ccb == ccb) | |
824 | hba->wait_ccb = NULL; | |
825 | if (unlikely(ccb->req == NULL)) { | |
826 | printk(KERN_WARNING DRV_NAME | |
827 | "(%s): lagging req\n", pci_name(hba->pdev)); | |
fb4f66be | 828 | hba->out_req_cnt--; |
5a25ba16 JG |
829 | continue; |
830 | } | |
831 | ||
832 | size = resp->payload_sz * sizeof(u32); /* payload size */ | |
833 | if (unlikely(size < sizeof(*resp) - STATUS_VAR_LEN || | |
834 | size > sizeof(*resp))) { | |
835 | printk(KERN_WARNING DRV_NAME "(%s): bad status size\n", | |
836 | pci_name(hba->pdev)); | |
837 | } else { | |
838 | size -= sizeof(*resp) - STATUS_VAR_LEN; /* copy size */ | |
839 | if (size) | |
840 | stex_copy_data(ccb, resp, size); | |
841 | } | |
842 | ||
843 | ccb->srb_status = resp->srb_status; | |
844 | ccb->scsi_status = resp->scsi_status; | |
845 | ||
cf355883 | 846 | if (likely(ccb->cmd != NULL)) { |
fb4f66be EL |
847 | if (hba->cardtype == st_yosemite) |
848 | stex_ys_commands(hba, ccb, resp); | |
849 | ||
cf355883 EL |
850 | if (unlikely(ccb->cmd->cmnd[0] == PASSTHRU_CMD && |
851 | ccb->cmd->cmnd[1] == PASSTHRU_GET_ADAPTER)) | |
852 | stex_controller_info(hba, ccb); | |
fb4f66be | 853 | |
cf355883 EL |
854 | stex_unmap_sg(hba, ccb->cmd); |
855 | stex_scsi_done(ccb); | |
856 | hba->out_req_cnt--; | |
857 | } else if (ccb->req_type & PASSTHRU_REQ_TYPE) { | |
858 | hba->out_req_cnt--; | |
5a25ba16 JG |
859 | if (ccb->req_type & PASSTHRU_REQ_NO_WAKEUP) { |
860 | ccb->req_type = 0; | |
861 | continue; | |
862 | } | |
863 | ccb->req_type = 0; | |
864 | if (waitqueue_active(&hba->waitq)) | |
865 | wake_up(&hba->waitq); | |
5a25ba16 | 866 | } |
5a25ba16 JG |
867 | } |
868 | ||
869 | update_status: | |
870 | writel(hba->status_head, base + IMR1); | |
871 | readl(base + IMR1); /* flush */ | |
872 | } | |
873 | ||
7d12e780 | 874 | static irqreturn_t stex_intr(int irq, void *__hba) |
5a25ba16 JG |
875 | { |
876 | struct st_hba *hba = __hba; | |
877 | void __iomem *base = hba->mmio_base; | |
878 | u32 data; | |
879 | unsigned long flags; | |
880 | int handled = 0; | |
881 | ||
882 | spin_lock_irqsave(hba->host->host_lock, flags); | |
883 | ||
884 | data = readl(base + ODBL); | |
885 | ||
886 | if (data && data != 0xffffffff) { | |
887 | /* clear the interrupt */ | |
888 | writel(data, base + ODBL); | |
889 | readl(base + ODBL); /* flush */ | |
890 | stex_mu_intr(hba, data); | |
891 | handled = 1; | |
892 | } | |
893 | ||
894 | spin_unlock_irqrestore(hba->host->host_lock, flags); | |
895 | ||
896 | return IRQ_RETVAL(handled); | |
897 | } | |
898 | ||
899 | static int stex_handshake(struct st_hba *hba) | |
900 | { | |
901 | void __iomem *base = hba->mmio_base; | |
902 | struct handshake_frame *h; | |
903 | dma_addr_t status_phys; | |
904 | int i; | |
905 | ||
906 | if (readl(base + OMR0) != MU_HANDSHAKE_SIGNATURE) { | |
907 | writel(MU_INBOUND_DOORBELL_HANDSHAKE, base + IDBL); | |
908 | readl(base + IDBL); | |
909 | for (i = 0; readl(base + OMR0) != MU_HANDSHAKE_SIGNATURE | |
910 | && i < MU_MAX_DELAY_TIME; i++) { | |
911 | rmb(); | |
912 | msleep(1); | |
913 | } | |
914 | ||
915 | if (i == MU_MAX_DELAY_TIME) { | |
916 | printk(KERN_ERR DRV_NAME | |
917 | "(%s): no handshake signature\n", | |
918 | pci_name(hba->pdev)); | |
919 | return -1; | |
920 | } | |
921 | } | |
922 | ||
923 | udelay(10); | |
924 | ||
925 | h = (struct handshake_frame *)(hba->dma_mem + MU_REQ_BUFFER_SIZE); | |
926 | h->rb_phy = cpu_to_le32(hba->dma_handle); | |
927 | h->rb_phy_hi = cpu_to_le32((hba->dma_handle >> 16) >> 16); | |
928 | h->req_sz = cpu_to_le16(sizeof(struct req_msg)); | |
929 | h->req_cnt = cpu_to_le16(MU_REQ_COUNT); | |
930 | h->status_sz = cpu_to_le16(sizeof(struct status_msg)); | |
931 | h->status_cnt = cpu_to_le16(MU_STATUS_COUNT); | |
932 | stex_gettime(&h->hosttime); | |
933 | h->partner_type = HMU_PARTNER_TYPE; | |
934 | ||
935 | status_phys = hba->dma_handle + MU_REQ_BUFFER_SIZE; | |
936 | writel(status_phys, base + IMR0); | |
937 | readl(base + IMR0); | |
938 | writel((status_phys >> 16) >> 16, base + IMR1); | |
939 | readl(base + IMR1); | |
940 | ||
941 | writel((status_phys >> 16) >> 16, base + OMR0); /* old fw compatible */ | |
942 | readl(base + OMR0); | |
943 | writel(MU_INBOUND_DOORBELL_HANDSHAKE, base + IDBL); | |
944 | readl(base + IDBL); /* flush */ | |
945 | ||
946 | udelay(10); | |
947 | for (i = 0; readl(base + OMR0) != MU_HANDSHAKE_SIGNATURE | |
948 | && i < MU_MAX_DELAY_TIME; i++) { | |
949 | rmb(); | |
950 | msleep(1); | |
951 | } | |
952 | ||
953 | if (i == MU_MAX_DELAY_TIME) { | |
954 | printk(KERN_ERR DRV_NAME | |
955 | "(%s): no signature after handshake frame\n", | |
956 | pci_name(hba->pdev)); | |
957 | return -1; | |
958 | } | |
959 | ||
960 | writel(0, base + IMR0); | |
961 | readl(base + IMR0); | |
962 | writel(0, base + OMR0); | |
963 | readl(base + OMR0); | |
964 | writel(0, base + IMR1); | |
965 | readl(base + IMR1); | |
966 | writel(0, base + OMR1); | |
967 | readl(base + OMR1); /* flush */ | |
968 | hba->mu_status = MU_STATE_STARTED; | |
969 | return 0; | |
970 | } | |
971 | ||
972 | static int stex_abort(struct scsi_cmnd *cmd) | |
973 | { | |
974 | struct Scsi_Host *host = cmd->device->host; | |
975 | struct st_hba *hba = (struct st_hba *)host->hostdata; | |
cf355883 | 976 | u16 tag = cmd->request->tag; |
5a25ba16 JG |
977 | void __iomem *base; |
978 | u32 data; | |
979 | int result = SUCCESS; | |
980 | unsigned long flags; | |
981 | base = hba->mmio_base; | |
982 | spin_lock_irqsave(host->host_lock, flags); | |
cf355883 EL |
983 | if (tag < host->can_queue && hba->ccb[tag].cmd == cmd) |
984 | hba->wait_ccb = &hba->ccb[tag]; | |
985 | else { | |
986 | for (tag = 0; tag < host->can_queue; tag++) | |
987 | if (hba->ccb[tag].cmd == cmd) { | |
988 | hba->wait_ccb = &hba->ccb[tag]; | |
989 | break; | |
990 | } | |
991 | if (tag >= host->can_queue) | |
992 | goto out; | |
993 | } | |
5a25ba16 JG |
994 | |
995 | data = readl(base + ODBL); | |
996 | if (data == 0 || data == 0xffffffff) | |
997 | goto fail_out; | |
998 | ||
999 | writel(data, base + ODBL); | |
1000 | readl(base + ODBL); /* flush */ | |
1001 | ||
1002 | stex_mu_intr(hba, data); | |
1003 | ||
1004 | if (hba->wait_ccb == NULL) { | |
1005 | printk(KERN_WARNING DRV_NAME | |
1006 | "(%s): lost interrupt\n", pci_name(hba->pdev)); | |
1007 | goto out; | |
1008 | } | |
1009 | ||
1010 | fail_out: | |
cf355883 | 1011 | stex_unmap_sg(hba, cmd); |
5a25ba16 JG |
1012 | hba->wait_ccb->req = NULL; /* nullify the req's future return */ |
1013 | hba->wait_ccb = NULL; | |
1014 | result = FAILED; | |
1015 | out: | |
1016 | spin_unlock_irqrestore(host->host_lock, flags); | |
1017 | return result; | |
1018 | } | |
1019 | ||
1020 | static void stex_hard_reset(struct st_hba *hba) | |
1021 | { | |
1022 | struct pci_bus *bus; | |
1023 | int i; | |
1024 | u16 pci_cmd; | |
1025 | u8 pci_bctl; | |
1026 | ||
1027 | for (i = 0; i < 16; i++) | |
1028 | pci_read_config_dword(hba->pdev, i * 4, | |
1029 | &hba->pdev->saved_config_space[i]); | |
1030 | ||
1031 | /* Reset secondary bus. Our controller(MU/ATU) is the only device on | |
1032 | secondary bus. Consult Intel 80331/3 developer's manual for detail */ | |
1033 | bus = hba->pdev->bus; | |
1034 | pci_read_config_byte(bus->self, PCI_BRIDGE_CONTROL, &pci_bctl); | |
1035 | pci_bctl |= PCI_BRIDGE_CTL_BUS_RESET; | |
1036 | pci_write_config_byte(bus->self, PCI_BRIDGE_CONTROL, pci_bctl); | |
1037 | msleep(1); | |
1038 | pci_bctl &= ~PCI_BRIDGE_CTL_BUS_RESET; | |
1039 | pci_write_config_byte(bus->self, PCI_BRIDGE_CONTROL, pci_bctl); | |
1040 | ||
1041 | for (i = 0; i < MU_MAX_DELAY_TIME; i++) { | |
1042 | pci_read_config_word(hba->pdev, PCI_COMMAND, &pci_cmd); | |
1043 | if (pci_cmd & PCI_COMMAND_MASTER) | |
1044 | break; | |
1045 | msleep(1); | |
1046 | } | |
1047 | ||
1048 | ssleep(5); | |
1049 | for (i = 0; i < 16; i++) | |
1050 | pci_write_config_dword(hba->pdev, i * 4, | |
1051 | hba->pdev->saved_config_space[i]); | |
1052 | } | |
1053 | ||
1054 | static int stex_reset(struct scsi_cmnd *cmd) | |
1055 | { | |
1056 | struct st_hba *hba; | |
1057 | unsigned long flags; | |
fb4f66be | 1058 | unsigned long before; |
5a25ba16 JG |
1059 | hba = (struct st_hba *) &cmd->device->host->hostdata[0]; |
1060 | ||
1061 | hba->mu_status = MU_STATE_RESETTING; | |
1062 | ||
1063 | if (hba->cardtype == st_shasta) | |
1064 | stex_hard_reset(hba); | |
1065 | ||
fb4f66be EL |
1066 | if (hba->cardtype != st_yosemite) { |
1067 | if (stex_handshake(hba)) { | |
1068 | printk(KERN_WARNING DRV_NAME | |
1069 | "(%s): resetting: handshake failed\n", | |
1070 | pci_name(hba->pdev)); | |
1071 | return FAILED; | |
1072 | } | |
1073 | spin_lock_irqsave(hba->host->host_lock, flags); | |
1074 | hba->req_head = 0; | |
1075 | hba->req_tail = 0; | |
1076 | hba->status_head = 0; | |
1077 | hba->status_tail = 0; | |
1078 | hba->out_req_cnt = 0; | |
1079 | spin_unlock_irqrestore(hba->host->host_lock, flags); | |
1080 | return SUCCESS; | |
5a25ba16 | 1081 | } |
5a25ba16 | 1082 | |
fb4f66be EL |
1083 | /* st_yosemite */ |
1084 | writel(MU_INBOUND_DOORBELL_RESET, hba->mmio_base + IDBL); | |
1085 | readl(hba->mmio_base + IDBL); /* flush */ | |
1086 | before = jiffies; | |
1087 | while (hba->out_req_cnt > 0) { | |
1088 | if (time_after(jiffies, before + ST_INTERNAL_TIMEOUT * HZ)) { | |
1089 | printk(KERN_WARNING DRV_NAME | |
1090 | "(%s): reset timeout\n", pci_name(hba->pdev)); | |
1091 | return FAILED; | |
1092 | } | |
1093 | msleep(1); | |
1094 | } | |
1095 | ||
1096 | hba->mu_status = MU_STATE_STARTED; | |
5a25ba16 JG |
1097 | return SUCCESS; |
1098 | } | |
1099 | ||
1100 | static int stex_biosparam(struct scsi_device *sdev, | |
1101 | struct block_device *bdev, sector_t capacity, int geom[]) | |
1102 | { | |
1103 | int heads = 255, sectors = 63, cylinders; | |
1104 | ||
1105 | if (capacity < 0x200000) { | |
1106 | heads = 64; | |
1107 | sectors = 32; | |
1108 | } | |
1109 | ||
1110 | cylinders = sector_div(capacity, heads * sectors); | |
1111 | ||
1112 | geom[0] = heads; | |
1113 | geom[1] = sectors; | |
1114 | geom[2] = cylinders; | |
1115 | ||
1116 | return 0; | |
1117 | } | |
1118 | ||
1119 | static struct scsi_host_template driver_template = { | |
1120 | .module = THIS_MODULE, | |
1121 | .name = DRV_NAME, | |
1122 | .proc_name = DRV_NAME, | |
1123 | .bios_param = stex_biosparam, | |
1124 | .queuecommand = stex_queuecommand, | |
cf355883 | 1125 | .slave_alloc = stex_slave_alloc, |
5a25ba16 JG |
1126 | .slave_configure = stex_slave_config, |
1127 | .slave_destroy = stex_slave_destroy, | |
1128 | .eh_abort_handler = stex_abort, | |
1129 | .eh_host_reset_handler = stex_reset, | |
1130 | .can_queue = ST_CAN_QUEUE, | |
1131 | .this_id = -1, | |
1132 | .sg_tablesize = ST_MAX_SG, | |
1133 | .cmd_per_lun = ST_CMD_PER_LUN, | |
1134 | }; | |
1135 | ||
1136 | static int stex_set_dma_mask(struct pci_dev * pdev) | |
1137 | { | |
1138 | int ret; | |
1139 | if (!pci_set_dma_mask(pdev, DMA_64BIT_MASK) | |
1140 | && !pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK)) | |
1141 | return 0; | |
1142 | ret = pci_set_dma_mask(pdev, DMA_32BIT_MASK); | |
1143 | if (!ret) | |
1144 | ret = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK); | |
1145 | return ret; | |
1146 | } | |
1147 | ||
1148 | static int __devinit | |
1149 | stex_probe(struct pci_dev *pdev, const struct pci_device_id *id) | |
1150 | { | |
1151 | struct st_hba *hba; | |
1152 | struct Scsi_Host *host; | |
1153 | int err; | |
1154 | ||
1155 | err = pci_enable_device(pdev); | |
1156 | if (err) | |
1157 | return err; | |
1158 | ||
1159 | pci_set_master(pdev); | |
1160 | ||
1161 | host = scsi_host_alloc(&driver_template, sizeof(struct st_hba)); | |
1162 | ||
1163 | if (!host) { | |
1164 | printk(KERN_ERR DRV_NAME "(%s): scsi_host_alloc failed\n", | |
1165 | pci_name(pdev)); | |
1166 | err = -ENOMEM; | |
1167 | goto out_disable; | |
1168 | } | |
1169 | ||
1170 | hba = (struct st_hba *)host->hostdata; | |
1171 | memset(hba, 0, sizeof(struct st_hba)); | |
1172 | ||
1173 | err = pci_request_regions(pdev, DRV_NAME); | |
1174 | if (err < 0) { | |
1175 | printk(KERN_ERR DRV_NAME "(%s): request regions failed\n", | |
1176 | pci_name(pdev)); | |
1177 | goto out_scsi_host_put; | |
1178 | } | |
1179 | ||
1180 | hba->mmio_base = ioremap(pci_resource_start(pdev, 0), | |
1181 | pci_resource_len(pdev, 0)); | |
1182 | if ( !hba->mmio_base) { | |
1183 | printk(KERN_ERR DRV_NAME "(%s): memory map failed\n", | |
1184 | pci_name(pdev)); | |
1185 | err = -ENOMEM; | |
1186 | goto out_release_regions; | |
1187 | } | |
1188 | ||
1189 | err = stex_set_dma_mask(pdev); | |
1190 | if (err) { | |
1191 | printk(KERN_ERR DRV_NAME "(%s): set dma mask failed\n", | |
1192 | pci_name(pdev)); | |
1193 | goto out_iounmap; | |
1194 | } | |
1195 | ||
1196 | hba->dma_mem = dma_alloc_coherent(&pdev->dev, | |
1197 | STEX_BUFFER_SIZE, &hba->dma_handle, GFP_KERNEL); | |
1198 | if (!hba->dma_mem) { | |
1199 | err = -ENOMEM; | |
1200 | printk(KERN_ERR DRV_NAME "(%s): dma mem alloc failed\n", | |
1201 | pci_name(pdev)); | |
1202 | goto out_iounmap; | |
1203 | } | |
1204 | ||
1205 | hba->status_buffer = | |
1206 | (struct status_msg *)(hba->dma_mem + MU_REQ_BUFFER_SIZE); | |
1207 | hba->copy_buffer = hba->dma_mem + MU_BUFFER_SIZE; | |
1208 | hba->mu_status = MU_STATE_STARTING; | |
1209 | ||
1210 | hba->cardtype = (unsigned int) id->driver_data; | |
1211 | ||
1212 | /* firmware uses id/lun pair for a logical drive, but lun would be | |
1213 | always 0 if CONFIG_SCSI_MULTI_LUN not configured, so we use | |
1214 | channel to map lun here */ | |
1215 | host->max_channel = ST_MAX_LUN_PER_TARGET - 1; | |
1216 | host->max_id = ST_MAX_TARGET_NUM; | |
1217 | host->max_lun = 1; | |
1218 | host->unique_id = host->host_no; | |
1219 | host->max_cmd_len = STEX_CDB_LENGTH; | |
1220 | ||
1221 | hba->host = host; | |
1222 | hba->pdev = pdev; | |
1223 | init_waitqueue_head(&hba->waitq); | |
1224 | ||
1225 | err = request_irq(pdev->irq, stex_intr, IRQF_SHARED, DRV_NAME, hba); | |
1226 | if (err) { | |
1227 | printk(KERN_ERR DRV_NAME "(%s): request irq failed\n", | |
1228 | pci_name(pdev)); | |
1229 | goto out_pci_free; | |
1230 | } | |
1231 | ||
1232 | err = stex_handshake(hba); | |
1233 | if (err) | |
1234 | goto out_free_irq; | |
1235 | ||
deb81d80 JB |
1236 | err = scsi_init_shared_tag_map(host, ST_CAN_QUEUE); |
1237 | if (err) { | |
cf355883 EL |
1238 | printk(KERN_ERR DRV_NAME "(%s): init shared queue failed\n", |
1239 | pci_name(pdev)); | |
1240 | goto out_free_irq; | |
1241 | } | |
1242 | ||
5a25ba16 JG |
1243 | pci_set_drvdata(pdev, hba); |
1244 | ||
1245 | err = scsi_add_host(host, &pdev->dev); | |
1246 | if (err) { | |
1247 | printk(KERN_ERR DRV_NAME "(%s): scsi_add_host failed\n", | |
1248 | pci_name(pdev)); | |
1249 | goto out_free_irq; | |
1250 | } | |
1251 | ||
1252 | scsi_scan_host(host); | |
1253 | ||
1254 | return 0; | |
1255 | ||
1256 | out_free_irq: | |
1257 | free_irq(pdev->irq, hba); | |
1258 | out_pci_free: | |
1259 | dma_free_coherent(&pdev->dev, STEX_BUFFER_SIZE, | |
1260 | hba->dma_mem, hba->dma_handle); | |
1261 | out_iounmap: | |
1262 | iounmap(hba->mmio_base); | |
1263 | out_release_regions: | |
1264 | pci_release_regions(pdev); | |
1265 | out_scsi_host_put: | |
1266 | scsi_host_put(host); | |
1267 | out_disable: | |
1268 | pci_disable_device(pdev); | |
1269 | ||
1270 | return err; | |
1271 | } | |
1272 | ||
1273 | static void stex_hba_stop(struct st_hba *hba) | |
1274 | { | |
1275 | struct req_msg *req; | |
1276 | unsigned long flags; | |
1277 | unsigned long before; | |
cf355883 | 1278 | u16 tag = 0; |
5a25ba16 JG |
1279 | |
1280 | spin_lock_irqsave(hba->host->host_lock, flags); | |
1281 | req = stex_alloc_req(hba); | |
1282 | memset(req->cdb, 0, STEX_CDB_LENGTH); | |
1283 | ||
fb4f66be EL |
1284 | if (hba->cardtype == st_yosemite) { |
1285 | req->cdb[0] = MGT_CMD; | |
1286 | req->cdb[1] = MGT_CMD_SIGNATURE; | |
1287 | req->cdb[2] = CTLR_CONFIG_CMD; | |
1288 | req->cdb[3] = CTLR_SHUTDOWN; | |
1289 | } else { | |
1290 | req->cdb[0] = CONTROLLER_CMD; | |
1291 | req->cdb[1] = CTLR_POWER_STATE_CHANGE; | |
1292 | req->cdb[2] = CTLR_POWER_SAVING; | |
1293 | } | |
5a25ba16 JG |
1294 | |
1295 | hba->ccb[tag].cmd = NULL; | |
1296 | hba->ccb[tag].sg_count = 0; | |
1297 | hba->ccb[tag].sense_bufflen = 0; | |
1298 | hba->ccb[tag].sense_buffer = NULL; | |
1299 | hba->ccb[tag].req_type |= PASSTHRU_REQ_TYPE; | |
1300 | ||
1301 | stex_send_cmd(hba, req, tag); | |
1302 | spin_unlock_irqrestore(hba->host->host_lock, flags); | |
1303 | ||
cf355883 EL |
1304 | before = jiffies; |
1305 | while (hba->ccb[tag].req_type & PASSTHRU_REQ_TYPE) { | |
1306 | if (time_after(jiffies, before + ST_INTERNAL_TIMEOUT * HZ)) | |
1307 | return; | |
1308 | msleep(10); | |
1309 | } | |
5a25ba16 JG |
1310 | } |
1311 | ||
1312 | static void stex_hba_free(struct st_hba *hba) | |
1313 | { | |
1314 | free_irq(hba->pdev->irq, hba); | |
1315 | ||
1316 | iounmap(hba->mmio_base); | |
1317 | ||
1318 | pci_release_regions(hba->pdev); | |
1319 | ||
1320 | dma_free_coherent(&hba->pdev->dev, STEX_BUFFER_SIZE, | |
1321 | hba->dma_mem, hba->dma_handle); | |
1322 | } | |
1323 | ||
1324 | static void stex_remove(struct pci_dev *pdev) | |
1325 | { | |
1326 | struct st_hba *hba = pci_get_drvdata(pdev); | |
1327 | ||
1328 | scsi_remove_host(hba->host); | |
1329 | ||
1330 | pci_set_drvdata(pdev, NULL); | |
1331 | ||
1332 | stex_hba_stop(hba); | |
1333 | ||
1334 | stex_hba_free(hba); | |
1335 | ||
1336 | scsi_host_put(hba->host); | |
1337 | ||
1338 | pci_disable_device(pdev); | |
1339 | } | |
1340 | ||
1341 | static void stex_shutdown(struct pci_dev *pdev) | |
1342 | { | |
1343 | struct st_hba *hba = pci_get_drvdata(pdev); | |
1344 | ||
1345 | stex_hba_stop(hba); | |
1346 | } | |
1347 | ||
1348 | static struct pci_device_id stex_pci_tbl[] = { | |
1349 | { 0x105a, 0x8350, PCI_ANY_ID, PCI_ANY_ID, 0, 0, st_shasta }, | |
1350 | { 0x105a, 0xc350, PCI_ANY_ID, PCI_ANY_ID, 0, 0, st_shasta }, | |
1351 | { 0x105a, 0xf350, PCI_ANY_ID, PCI_ANY_ID, 0, 0, st_shasta }, | |
1352 | { 0x105a, 0x4301, PCI_ANY_ID, PCI_ANY_ID, 0, 0, st_shasta }, | |
1353 | { 0x105a, 0x4302, PCI_ANY_ID, PCI_ANY_ID, 0, 0, st_shasta }, | |
1354 | { 0x105a, 0x8301, PCI_ANY_ID, PCI_ANY_ID, 0, 0, st_shasta }, | |
1355 | { 0x105a, 0x8302, PCI_ANY_ID, PCI_ANY_ID, 0, 0, st_shasta }, | |
1356 | { 0x1725, 0x7250, PCI_ANY_ID, PCI_ANY_ID, 0, 0, st_vsc }, | |
fb4f66be | 1357 | { 0x105a, 0x8650, PCI_ANY_ID, PCI_ANY_ID, 0, 0, st_yosemite }, |
5a25ba16 JG |
1358 | { } /* terminate list */ |
1359 | }; | |
1360 | MODULE_DEVICE_TABLE(pci, stex_pci_tbl); | |
1361 | ||
1362 | static struct pci_driver stex_pci_driver = { | |
1363 | .name = DRV_NAME, | |
1364 | .id_table = stex_pci_tbl, | |
1365 | .probe = stex_probe, | |
1366 | .remove = __devexit_p(stex_remove), | |
1367 | .shutdown = stex_shutdown, | |
1368 | }; | |
1369 | ||
1370 | static int __init stex_init(void) | |
1371 | { | |
1372 | printk(KERN_INFO DRV_NAME | |
1373 | ": Promise SuperTrak EX Driver version: %s\n", | |
1374 | ST_DRIVER_VERSION); | |
1375 | ||
1376 | return pci_register_driver(&stex_pci_driver); | |
1377 | } | |
1378 | ||
1379 | static void __exit stex_exit(void) | |
1380 | { | |
1381 | pci_unregister_driver(&stex_pci_driver); | |
1382 | } | |
1383 | ||
1384 | module_init(stex_init); | |
1385 | module_exit(stex_exit); |