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diff --git a/include/scsi/sas.h b/include/scsi/sas.h
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1/*
2 * SAS structures and definitions header file
3 *
4 * Copyright (C) 2005 Adaptec, Inc. All rights reserved.
5 * Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com>
6 *
7 * This file is licensed under GPLv2.
8 *
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License as
11 * published by the Free Software Foundation; either version 2 of the
12 * License, or (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful, but
15 * WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
22 * USA
23 *
24 */
25
26#ifndef _SAS_H_
27#define _SAS_H_
28
29#include <linux/types.h>
30#include <asm/byteorder.h>
31
32#define SAS_ADDR_SIZE 8
33#define HASHED_SAS_ADDR_SIZE 3
34#define SAS_ADDR(_sa) ((unsigned long long) be64_to_cpu(*(__be64 *)(_sa)))
35
36#define SMP_REQUEST 0x40
37#define SMP_RESPONSE 0x41
38
39#define SSP_DATA 0x01
40#define SSP_XFER_RDY 0x05
41#define SSP_COMMAND 0x06
42#define SSP_RESPONSE 0x07
43#define SSP_TASK 0x16
44
45#define SMP_REPORT_GENERAL 0x00
46#define SMP_REPORT_MANUF_INFO 0x01
47#define SMP_READ_GPIO_REG 0x02
48#define SMP_DISCOVER 0x10
49#define SMP_REPORT_PHY_ERR_LOG 0x11
50#define SMP_REPORT_PHY_SATA 0x12
51#define SMP_REPORT_ROUTE_INFO 0x13
52#define SMP_WRITE_GPIO_REG 0x82
53#define SMP_CONF_ROUTE_INFO 0x90
54#define SMP_PHY_CONTROL 0x91
55#define SMP_PHY_TEST_FUNCTION 0x92
56
57#define SMP_RESP_FUNC_ACC 0x00
58#define SMP_RESP_FUNC_UNK 0x01
59#define SMP_RESP_FUNC_FAILED 0x02
60#define SMP_RESP_INV_FRM_LEN 0x03
61#define SMP_RESP_NO_PHY 0x10
62#define SMP_RESP_NO_INDEX 0x11
63#define SMP_RESP_PHY_NO_SATA 0x12
64#define SMP_RESP_PHY_UNK_OP 0x13
65#define SMP_RESP_PHY_UNK_TESTF 0x14
66#define SMP_RESP_PHY_TEST_INPROG 0x15
67#define SMP_RESP_PHY_VACANT 0x16
68
69/* SAM TMFs */
70#define TMF_ABORT_TASK 0x01
71#define TMF_ABORT_TASK_SET 0x02
72#define TMF_CLEAR_TASK_SET 0x04
73#define TMF_LU_RESET 0x08
74#define TMF_CLEAR_ACA 0x40
75#define TMF_QUERY_TASK 0x80
76
77/* SAS TMF responses */
78#define TMF_RESP_FUNC_COMPLETE 0x00
79#define TMF_RESP_INVALID_FRAME 0x02
80#define TMF_RESP_FUNC_ESUPP 0x04
81#define TMF_RESP_FUNC_FAILED 0x05
82#define TMF_RESP_FUNC_SUCC 0x08
83#define TMF_RESP_NO_LUN 0x09
84#define TMF_RESP_OVERLAPPED_TAG 0x0A
85
86enum sas_oob_mode {
87 OOB_NOT_CONNECTED,
88 SATA_OOB_MODE,
89 SAS_OOB_MODE
90};
91
92/* See sas_discover.c if you plan on changing these.
93 */
94enum sas_dev_type {
95 NO_DEVICE = 0, /* protocol */
96 SAS_END_DEV = 1, /* protocol */
97 EDGE_DEV = 2, /* protocol */
98 FANOUT_DEV = 3, /* protocol */
99 SAS_HA = 4,
100 SATA_DEV = 5,
101 SATA_PM = 7,
102 SATA_PM_PORT= 8,
103};
104
105/* Partly from IDENTIFY address frame. */
106enum sas_proto {
107 SATA_PROTO = 1,
108 SAS_PROTO_SMP = 2, /* protocol */
109 SAS_PROTO_STP = 4, /* protocol */
110 SAS_PROTO_SSP = 8, /* protocol */
111 SAS_PROTO_ALL = 0xE,
112};
113
114/* From the spec; local phys only */
115enum phy_func {
116 PHY_FUNC_NOP,
117 PHY_FUNC_LINK_RESET, /* Enables the phy */
118 PHY_FUNC_HARD_RESET,
119 PHY_FUNC_DISABLE,
120 PHY_FUNC_CLEAR_ERROR_LOG = 5,
121 PHY_FUNC_CLEAR_AFFIL,
122 PHY_FUNC_TX_SATA_PS_SIGNAL,
123 PHY_FUNC_RELEASE_SPINUP_HOLD = 0x10, /* LOCAL PORT ONLY! */
124 PHY_FUNC_SET_LINK_RATE,
125};
126
127/* SAS LLDD would need to report only _very_few_ of those, like BROADCAST.
128 * Most of those are here for completeness.
129 */
130enum sas_prim {
131 SAS_PRIM_AIP_NORMAL = 1,
132 SAS_PRIM_AIP_R0 = 2,
133 SAS_PRIM_AIP_R1 = 3,
134 SAS_PRIM_AIP_R2 = 4,
135 SAS_PRIM_AIP_WC = 5,
136 SAS_PRIM_AIP_WD = 6,
137 SAS_PRIM_AIP_WP = 7,
138 SAS_PRIM_AIP_RWP = 8,
139
140 SAS_PRIM_BC_CH = 9,
141 SAS_PRIM_BC_RCH0 = 10,
142 SAS_PRIM_BC_RCH1 = 11,
143 SAS_PRIM_BC_R0 = 12,
144 SAS_PRIM_BC_R1 = 13,
145 SAS_PRIM_BC_R2 = 14,
146 SAS_PRIM_BC_R3 = 15,
147 SAS_PRIM_BC_R4 = 16,
148
149 SAS_PRIM_NOTIFY_ENSP= 17,
150 SAS_PRIM_NOTIFY_R0 = 18,
151 SAS_PRIM_NOTIFY_R1 = 19,
152 SAS_PRIM_NOTIFY_R2 = 20,
153
154 SAS_PRIM_CLOSE_CLAF = 21,
155 SAS_PRIM_CLOSE_NORM = 22,
156 SAS_PRIM_CLOSE_R0 = 23,
157 SAS_PRIM_CLOSE_R1 = 24,
158
159 SAS_PRIM_OPEN_RTRY = 25,
160 SAS_PRIM_OPEN_RJCT = 26,
161 SAS_PRIM_OPEN_ACPT = 27,
162
163 SAS_PRIM_DONE = 28,
164 SAS_PRIM_BREAK = 29,
165
166 SATA_PRIM_DMAT = 33,
167 SATA_PRIM_PMNAK = 34,
168 SATA_PRIM_PMACK = 35,
169 SATA_PRIM_PMREQ_S = 36,
170 SATA_PRIM_PMREQ_P = 37,
171 SATA_SATA_R_ERR = 38,
172};
173
174enum sas_open_rej_reason {
175 /* Abandon open */
176 SAS_OREJ_UNKNOWN = 0,
177 SAS_OREJ_BAD_DEST = 1,
178 SAS_OREJ_CONN_RATE = 2,
179 SAS_OREJ_EPROTO = 3,
180 SAS_OREJ_RESV_AB0 = 4,
181 SAS_OREJ_RESV_AB1 = 5,
182 SAS_OREJ_RESV_AB2 = 6,
183 SAS_OREJ_RESV_AB3 = 7,
184 SAS_OREJ_WRONG_DEST= 8,
185 SAS_OREJ_STP_NORES = 9,
186
187 /* Retry open */
188 SAS_OREJ_NO_DEST = 10,
189 SAS_OREJ_PATH_BLOCKED = 11,
190 SAS_OREJ_RSVD_CONT0 = 12,
191 SAS_OREJ_RSVD_CONT1 = 13,
192 SAS_OREJ_RSVD_INIT0 = 14,
193 SAS_OREJ_RSVD_INIT1 = 15,
194 SAS_OREJ_RSVD_STOP0 = 16,
195 SAS_OREJ_RSVD_STOP1 = 17,
196 SAS_OREJ_RSVD_RETRY = 18,
197};
198
199struct dev_to_host_fis {
200 u8 fis_type; /* 0x34 */
201 u8 flags;
202 u8 status;
203 u8 error;
204
205 u8 lbal;
206 union { u8 lbam; u8 byte_count_low; };
207 union { u8 lbah; u8 byte_count_high; };
208 u8 device;
209
210 u8 lbal_exp;
211 u8 lbam_exp;
212 u8 lbah_exp;
213 u8 _r_a;
214
215 union { u8 sector_count; u8 interrupt_reason; };
216 u8 sector_count_exp;
217 u8 _r_b;
218 u8 _r_c;
219
220 u32 _r_d;
221} __attribute__ ((packed));
222
223struct host_to_dev_fis {
224 u8 fis_type; /* 0x27 */
225 u8 flags;
226 u8 command;
227 u8 features;
228
229 u8 lbal;
230 union { u8 lbam; u8 byte_count_low; };
231 union { u8 lbah; u8 byte_count_high; };
232 u8 device;
233
234 u8 lbal_exp;
235 u8 lbam_exp;
236 u8 lbah_exp;
237 u8 features_exp;
238
239 union { u8 sector_count; u8 interrupt_reason; };
240 u8 sector_count_exp;
241 u8 _r_a;
242 u8 control;
243
244 u32 _r_b;
245} __attribute__ ((packed));
246
247/* Prefer to have code clarity over header file clarity.
248 */
249#ifdef __LITTLE_ENDIAN_BITFIELD
250struct sas_identify_frame {
251 /* Byte 0 */
252 u8 frame_type:4;
253 u8 dev_type:3;
254 u8 _un0:1;
255
256 /* Byte 1 */
257 u8 _un1;
258
259 /* Byte 2 */
260 union {
261 struct {
262 u8 _un20:1;
263 u8 smp_iport:1;
264 u8 stp_iport:1;
265 u8 ssp_iport:1;
266 u8 _un247:4;
267 };
268 u8 initiator_bits;
269 };
270
271 /* Byte 3 */
272 union {
273 struct {
274 u8 _un30:1;
275 u8 smp_tport:1;
276 u8 stp_tport:1;
277 u8 ssp_tport:1;
278 u8 _un347:4;
279 };
280 u8 target_bits;
281 };
282
283 /* Byte 4 - 11 */
284 u8 _un4_11[8];
285
286 /* Byte 12 - 19 */
287 u8 sas_addr[SAS_ADDR_SIZE];
288
289 /* Byte 20 */
290 u8 phy_id;
291
292 u8 _un21_27[7];
293
294 __be32 crc;
295} __attribute__ ((packed));
296
297struct ssp_frame_hdr {
298 u8 frame_type;
299 u8 hashed_dest_addr[HASHED_SAS_ADDR_SIZE];
300 u8 _r_a;
301 u8 hashed_src_addr[HASHED_SAS_ADDR_SIZE];
302 __be16 _r_b;
303
304 u8 changing_data_ptr:1;
305 u8 retransmit:1;
306 u8 retry_data_frames:1;
307 u8 _r_c:5;
308
309 u8 num_fill_bytes:2;
310 u8 _r_d:6;
311
312 u32 _r_e;
313 __be16 tag;
314 __be16 tptt;
315 __be32 data_offs;
316} __attribute__ ((packed));
317
318struct ssp_response_iu {
319 u8 _r_a[10];
320
321 u8 datapres:2;
322 u8 _r_b:6;
323
324 u8 status;
325
326 u32 _r_c;
327
328 __be32 sense_data_len;
329 __be32 response_data_len;
330
331 u8 resp_data[0];
332 u8 sense_data[0];
333} __attribute__ ((packed));
334
335/* ---------- SMP ---------- */
336
337struct report_general_resp {
338 __be16 change_count;
339 __be16 route_indexes;
340 u8 _r_a;
341 u8 num_phys;
342
343 u8 conf_route_table:1;
344 u8 configuring:1;
345 u8 _r_b:6;
346
347 u8 _r_c;
348
349 u8 enclosure_logical_id[8];
350
351 u8 _r_d[12];
352} __attribute__ ((packed));
353
354struct discover_resp {
355 u8 _r_a[5];
356
357 u8 phy_id;
358 __be16 _r_b;
359
360 u8 _r_c:4;
361 u8 attached_dev_type:3;
362 u8 _r_d:1;
363
364 u8 linkrate:4;
365 u8 _r_e:4;
366
367 u8 attached_sata_host:1;
368 u8 iproto:3;
369 u8 _r_f:4;
370
371 u8 attached_sata_dev:1;
372 u8 tproto:3;
373 u8 _r_g:3;
374 u8 attached_sata_ps:1;
375
376 u8 sas_addr[8];
377 u8 attached_sas_addr[8];
378 u8 attached_phy_id;
379
380 u8 _r_h[7];
381
382 u8 hmin_linkrate:4;
383 u8 pmin_linkrate:4;
384 u8 hmax_linkrate:4;
385 u8 pmax_linkrate:4;
386
387 u8 change_count;
388
389 u8 pptv:4;
390 u8 _r_i:3;
391 u8 virtual:1;
392
393 u8 routing_attr:4;
394 u8 _r_j:4;
395
396 u8 conn_type;
397 u8 conn_el_index;
398 u8 conn_phy_link;
399
400 u8 _r_k[8];
401} __attribute__ ((packed));
402
403struct report_phy_sata_resp {
404 u8 _r_a[5];
405
406 u8 phy_id;
407 u8 _r_b;
408
409 u8 affil_valid:1;
410 u8 affil_supp:1;
411 u8 _r_c:6;
412
413 u32 _r_d;
414
415 u8 stp_sas_addr[8];
416
417 struct dev_to_host_fis fis;
418
419 u32 _r_e;
420
421 u8 affil_stp_ini_addr[8];
422
423 __be32 crc;
424} __attribute__ ((packed));
425
426struct smp_resp {
427 u8 frame_type;
428 u8 function;
429 u8 result;
430 u8 reserved;
431 union {
432 struct report_general_resp rg;
433 struct discover_resp disc;
434 struct report_phy_sata_resp rps;
435 };
436} __attribute__ ((packed));
437
438#elif defined(__BIG_ENDIAN_BITFIELD)
439struct sas_identify_frame {
440 /* Byte 0 */
441 u8 _un0:1;
442 u8 dev_type:3;
443 u8 frame_type:4;
444
445 /* Byte 1 */
446 u8 _un1;
447
448 /* Byte 2 */
449 union {
450 struct {
451 u8 _un247:4;
452 u8 ssp_iport:1;
453 u8 stp_iport:1;
454 u8 smp_iport:1;
455 u8 _un20:1;
456 };
457 u8 initiator_bits;
458 };
459
460 /* Byte 3 */
461 union {
462 struct {
463 u8 _un347:4;
464 u8 ssp_tport:1;
465 u8 stp_tport:1;
466 u8 smp_tport:1;
467 u8 _un30:1;
468 };
469 u8 target_bits;
470 };
471
472 /* Byte 4 - 11 */
473 u8 _un4_11[8];
474
475 /* Byte 12 - 19 */
476 u8 sas_addr[SAS_ADDR_SIZE];
477
478 /* Byte 20 */
479 u8 phy_id;
480
481 u8 _un21_27[7];
482
483 __be32 crc;
484} __attribute__ ((packed));
485
486struct ssp_frame_hdr {
487 u8 frame_type;
488 u8 hashed_dest_addr[HASHED_SAS_ADDR_SIZE];
489 u8 _r_a;
490 u8 hashed_src_addr[HASHED_SAS_ADDR_SIZE];
491 __be16 _r_b;
492
493 u8 _r_c:5;
494 u8 retry_data_frames:1;
495 u8 retransmit:1;
496 u8 changing_data_ptr:1;
497
498 u8 _r_d:6;
499 u8 num_fill_bytes:2;
500
501 u32 _r_e;
502 __be16 tag;
503 __be16 tptt;
504 __be32 data_offs;
505} __attribute__ ((packed));
506
507struct ssp_response_iu {
508 u8 _r_a[10];
509
510 u8 _r_b:6;
511 u8 datapres:2;
512
513 u8 status;
514
515 u32 _r_c;
516
517 __be32 sense_data_len;
518 __be32 response_data_len;
519
520 u8 resp_data[0];
521 u8 sense_data[0];
522} __attribute__ ((packed));
523
524/* ---------- SMP ---------- */
525
526struct report_general_resp {
527 __be16 change_count;
528 __be16 route_indexes;
529 u8 _r_a;
530 u8 num_phys;
531
532 u8 _r_b:6;
533 u8 configuring:1;
534 u8 conf_route_table:1;
535
536 u8 _r_c;
537
538 u8 enclosure_logical_id[8];
539
540 u8 _r_d[12];
541} __attribute__ ((packed));
542
543struct discover_resp {
544 u8 _r_a[5];
545
546 u8 phy_id;
547 __be16 _r_b;
548
549 u8 _r_d:1;
550 u8 attached_dev_type:3;
551 u8 _r_c:4;
552
553 u8 _r_e:4;
554 u8 linkrate:4;
555
556 u8 _r_f:4;
557 u8 iproto:3;
558 u8 attached_sata_host:1;
559
560 u8 attached_sata_ps:1;
561 u8 _r_g:3;
562 u8 tproto:3;
563 u8 attached_sata_dev:1;
564
565 u8 sas_addr[8];
566 u8 attached_sas_addr[8];
567 u8 attached_phy_id;
568
569 u8 _r_h[7];
570
571 u8 pmin_linkrate:4;
572 u8 hmin_linkrate:4;
573 u8 pmax_linkrate:4;
574 u8 hmax_linkrate:4;
575
576 u8 change_count;
577
578 u8 virtual:1;
579 u8 _r_i:3;
580 u8 pptv:4;
581
582 u8 _r_j:4;
583 u8 routing_attr:4;
584
585 u8 conn_type;
586 u8 conn_el_index;
587 u8 conn_phy_link;
588
589 u8 _r_k[8];
590} __attribute__ ((packed));
591
592struct report_phy_sata_resp {
593 u8 _r_a[5];
594
595 u8 phy_id;
596 u8 _r_b;
597
598 u8 _r_c:6;
599 u8 affil_supp:1;
600 u8 affil_valid:1;
601
602 u32 _r_d;
603
604 u8 stp_sas_addr[8];
605
606 struct dev_to_host_fis fis;
607
608 u32 _r_e;
609
610 u8 affil_stp_ini_addr[8];
611
612 __be32 crc;
613} __attribute__ ((packed));
614
615struct smp_resp {
616 u8 frame_type;
617 u8 function;
618 u8 result;
619 u8 reserved;
620 union {
621 struct report_general_resp rg;
622 struct discover_resp disc;
623 struct report_phy_sata_resp rps;
624 };
625} __attribute__ ((packed));
626
627#else
628#error "Bitfield order not defined!"
629#endif
630
631#endif /* _SAS_H_ */
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