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[linux/fpc-iii.git] / include / scsi / sas.h
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1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3 * SAS structures and definitions header file
5 * Copyright (C) 2005 Adaptec, Inc. All rights reserved.
6 * Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com>
7 */
9 #ifndef _SAS_H_
10 #define _SAS_H_
12 #include <linux/types.h>
13 #include <asm/byteorder.h>
15 #define SAS_ADDR_SIZE 8
16 #define HASHED_SAS_ADDR_SIZE 3
17 #define SAS_ADDR(_sa) ((unsigned long long) be64_to_cpu(*(__be64 *)(_sa)))
19 #define SMP_REQUEST 0x40
20 #define SMP_RESPONSE 0x41
22 #define SSP_DATA 0x01
23 #define SSP_XFER_RDY 0x05
24 #define SSP_COMMAND 0x06
25 #define SSP_RESPONSE 0x07
26 #define SSP_TASK 0x16
28 #define SMP_REPORT_GENERAL 0x00
29 #define SMP_REPORT_MANUF_INFO 0x01
30 #define SMP_READ_GPIO_REG 0x02
31 #define SMP_DISCOVER 0x10
32 #define SMP_REPORT_PHY_ERR_LOG 0x11
33 #define SMP_REPORT_PHY_SATA 0x12
34 #define SMP_REPORT_ROUTE_INFO 0x13
35 #define SMP_WRITE_GPIO_REG 0x82
36 #define SMP_CONF_ROUTE_INFO 0x90
37 #define SMP_PHY_CONTROL 0x91
38 #define SMP_PHY_TEST_FUNCTION 0x92
40 #define SMP_RESP_FUNC_ACC 0x00
41 #define SMP_RESP_FUNC_UNK 0x01
42 #define SMP_RESP_FUNC_FAILED 0x02
43 #define SMP_RESP_INV_FRM_LEN 0x03
44 #define SMP_RESP_NO_PHY 0x10
45 #define SMP_RESP_NO_INDEX 0x11
46 #define SMP_RESP_PHY_NO_SATA 0x12
47 #define SMP_RESP_PHY_UNK_OP 0x13
48 #define SMP_RESP_PHY_UNK_TESTF 0x14
49 #define SMP_RESP_PHY_TEST_INPROG 0x15
50 #define SMP_RESP_PHY_VACANT 0x16
52 /* SAM TMFs */
53 #define TMF_ABORT_TASK 0x01
54 #define TMF_ABORT_TASK_SET 0x02
55 #define TMF_CLEAR_TASK_SET 0x04
56 #define TMF_LU_RESET 0x08
57 #define TMF_CLEAR_ACA 0x40
58 #define TMF_QUERY_TASK 0x80
60 /* SAS TMF responses */
61 #define TMF_RESP_FUNC_COMPLETE 0x00
62 #define TMF_RESP_INVALID_FRAME 0x02
63 #define TMF_RESP_FUNC_ESUPP 0x04
64 #define TMF_RESP_FUNC_FAILED 0x05
65 #define TMF_RESP_FUNC_SUCC 0x08
66 #define TMF_RESP_NO_LUN 0x09
67 #define TMF_RESP_OVERLAPPED_TAG 0x0A
69 enum sas_oob_mode {
70 OOB_NOT_CONNECTED,
71 SATA_OOB_MODE,
72 SAS_OOB_MODE
75 /* See sas_discover.c if you plan on changing these */
76 enum sas_device_type {
77 /* these are SAS protocol defined (attached device type field) */
78 SAS_PHY_UNUSED = 0,
79 SAS_END_DEVICE = 1,
80 SAS_EDGE_EXPANDER_DEVICE = 2,
81 SAS_FANOUT_EXPANDER_DEVICE = 3,
82 /* these are internal to libsas */
83 SAS_HA = 4,
84 SAS_SATA_DEV = 5,
85 SAS_SATA_PM = 7,
86 SAS_SATA_PM_PORT = 8,
87 SAS_SATA_PENDING = 9,
90 enum sas_protocol {
91 SAS_PROTOCOL_NONE = 0,
92 SAS_PROTOCOL_SATA = 0x01,
93 SAS_PROTOCOL_SMP = 0x02,
94 SAS_PROTOCOL_STP = 0x04,
95 SAS_PROTOCOL_SSP = 0x08,
96 SAS_PROTOCOL_ALL = 0x0E,
97 SAS_PROTOCOL_STP_ALL = SAS_PROTOCOL_STP|SAS_PROTOCOL_SATA,
100 /* From the spec; local phys only */
101 enum phy_func {
102 PHY_FUNC_NOP,
103 PHY_FUNC_LINK_RESET, /* Enables the phy */
104 PHY_FUNC_HARD_RESET,
105 PHY_FUNC_DISABLE,
106 PHY_FUNC_CLEAR_ERROR_LOG = 5,
107 PHY_FUNC_CLEAR_AFFIL,
108 PHY_FUNC_TX_SATA_PS_SIGNAL,
109 PHY_FUNC_RELEASE_SPINUP_HOLD = 0x10, /* LOCAL PORT ONLY! */
110 PHY_FUNC_SET_LINK_RATE,
111 PHY_FUNC_GET_EVENTS,
114 /* SAS LLDD would need to report only _very_few_ of those, like BROADCAST.
115 * Most of those are here for completeness.
117 enum sas_prim {
118 SAS_PRIM_AIP_NORMAL = 1,
119 SAS_PRIM_AIP_R0 = 2,
120 SAS_PRIM_AIP_R1 = 3,
121 SAS_PRIM_AIP_R2 = 4,
122 SAS_PRIM_AIP_WC = 5,
123 SAS_PRIM_AIP_WD = 6,
124 SAS_PRIM_AIP_WP = 7,
125 SAS_PRIM_AIP_RWP = 8,
127 SAS_PRIM_BC_CH = 9,
128 SAS_PRIM_BC_RCH0 = 10,
129 SAS_PRIM_BC_RCH1 = 11,
130 SAS_PRIM_BC_R0 = 12,
131 SAS_PRIM_BC_R1 = 13,
132 SAS_PRIM_BC_R2 = 14,
133 SAS_PRIM_BC_R3 = 15,
134 SAS_PRIM_BC_R4 = 16,
136 SAS_PRIM_NOTIFY_ENSP= 17,
137 SAS_PRIM_NOTIFY_R0 = 18,
138 SAS_PRIM_NOTIFY_R1 = 19,
139 SAS_PRIM_NOTIFY_R2 = 20,
141 SAS_PRIM_CLOSE_CLAF = 21,
142 SAS_PRIM_CLOSE_NORM = 22,
143 SAS_PRIM_CLOSE_R0 = 23,
144 SAS_PRIM_CLOSE_R1 = 24,
146 SAS_PRIM_OPEN_RTRY = 25,
147 SAS_PRIM_OPEN_RJCT = 26,
148 SAS_PRIM_OPEN_ACPT = 27,
150 SAS_PRIM_DONE = 28,
151 SAS_PRIM_BREAK = 29,
153 SATA_PRIM_DMAT = 33,
154 SATA_PRIM_PMNAK = 34,
155 SATA_PRIM_PMACK = 35,
156 SATA_PRIM_PMREQ_S = 36,
157 SATA_PRIM_PMREQ_P = 37,
158 SATA_SATA_R_ERR = 38,
161 enum sas_open_rej_reason {
162 /* Abandon open */
163 SAS_OREJ_UNKNOWN = 0,
164 SAS_OREJ_BAD_DEST = 1,
165 SAS_OREJ_CONN_RATE = 2,
166 SAS_OREJ_EPROTO = 3,
167 SAS_OREJ_RESV_AB0 = 4,
168 SAS_OREJ_RESV_AB1 = 5,
169 SAS_OREJ_RESV_AB2 = 6,
170 SAS_OREJ_RESV_AB3 = 7,
171 SAS_OREJ_WRONG_DEST= 8,
172 SAS_OREJ_STP_NORES = 9,
174 /* Retry open */
175 SAS_OREJ_NO_DEST = 10,
176 SAS_OREJ_PATH_BLOCKED = 11,
177 SAS_OREJ_RSVD_CONT0 = 12,
178 SAS_OREJ_RSVD_CONT1 = 13,
179 SAS_OREJ_RSVD_INIT0 = 14,
180 SAS_OREJ_RSVD_INIT1 = 15,
181 SAS_OREJ_RSVD_STOP0 = 16,
182 SAS_OREJ_RSVD_STOP1 = 17,
183 SAS_OREJ_RSVD_RETRY = 18,
186 enum sas_gpio_reg_type {
187 SAS_GPIO_REG_CFG = 0,
188 SAS_GPIO_REG_RX = 1,
189 SAS_GPIO_REG_RX_GP = 2,
190 SAS_GPIO_REG_TX = 3,
191 SAS_GPIO_REG_TX_GP = 4,
194 struct dev_to_host_fis {
195 u8 fis_type; /* 0x34 */
196 u8 flags;
197 u8 status;
198 u8 error;
200 u8 lbal;
201 union { u8 lbam; u8 byte_count_low; };
202 union { u8 lbah; u8 byte_count_high; };
203 u8 device;
205 u8 lbal_exp;
206 u8 lbam_exp;
207 u8 lbah_exp;
208 u8 _r_a;
210 union { u8 sector_count; u8 interrupt_reason; };
211 u8 sector_count_exp;
212 u8 _r_b;
213 u8 _r_c;
215 u32 _r_d;
216 } __attribute__ ((packed));
218 struct host_to_dev_fis {
219 u8 fis_type; /* 0x27 */
220 u8 flags;
221 u8 command;
222 u8 features;
224 u8 lbal;
225 union { u8 lbam; u8 byte_count_low; };
226 union { u8 lbah; u8 byte_count_high; };
227 u8 device;
229 u8 lbal_exp;
230 u8 lbam_exp;
231 u8 lbah_exp;
232 u8 features_exp;
234 union { u8 sector_count; u8 interrupt_reason; };
235 u8 sector_count_exp;
236 u8 _r_a;
237 u8 control;
239 u32 _r_b;
240 } __attribute__ ((packed));
242 /* Prefer to have code clarity over header file clarity.
244 #ifdef __LITTLE_ENDIAN_BITFIELD
245 struct sas_identify_frame {
246 /* Byte 0 */
247 u8 frame_type:4;
248 u8 dev_type:3;
249 u8 _un0:1;
251 /* Byte 1 */
252 u8 _un1;
254 /* Byte 2 */
255 union {
256 struct {
257 u8 _un20:1;
258 u8 smp_iport:1;
259 u8 stp_iport:1;
260 u8 ssp_iport:1;
261 u8 _un247:4;
263 u8 initiator_bits;
266 /* Byte 3 */
267 union {
268 struct {
269 u8 _un30:1;
270 u8 smp_tport:1;
271 u8 stp_tport:1;
272 u8 ssp_tport:1;
273 u8 _un347:4;
275 u8 target_bits;
278 /* Byte 4 - 11 */
279 u8 _un4_11[8];
281 /* Byte 12 - 19 */
282 u8 sas_addr[SAS_ADDR_SIZE];
284 /* Byte 20 */
285 u8 phy_id;
287 u8 _un21_27[7];
289 __be32 crc;
290 } __attribute__ ((packed));
292 struct ssp_frame_hdr {
293 u8 frame_type;
294 u8 hashed_dest_addr[HASHED_SAS_ADDR_SIZE];
295 u8 _r_a;
296 u8 hashed_src_addr[HASHED_SAS_ADDR_SIZE];
297 __be16 _r_b;
299 u8 changing_data_ptr:1;
300 u8 retransmit:1;
301 u8 retry_data_frames:1;
302 u8 _r_c:5;
304 u8 num_fill_bytes:2;
305 u8 _r_d:6;
307 u32 _r_e;
308 __be16 tag;
309 __be16 tptt;
310 __be32 data_offs;
311 } __attribute__ ((packed));
313 struct ssp_response_iu {
314 u8 _r_a[10];
316 u8 datapres:2;
317 u8 _r_b:6;
319 u8 status;
321 u32 _r_c;
323 __be32 sense_data_len;
324 __be32 response_data_len;
326 u8 resp_data[0];
327 u8 sense_data[0];
328 } __attribute__ ((packed));
330 struct ssp_command_iu {
331 u8 lun[8];
332 u8 _r_a;
334 union {
335 struct {
336 u8 attr:3;
337 u8 prio:4;
338 u8 efb:1;
340 u8 efb_prio_attr;
343 u8 _r_b;
345 u8 _r_c:2;
346 u8 add_cdb_len:6;
348 u8 cdb[16];
349 u8 add_cdb[0];
350 } __attribute__ ((packed));
352 struct xfer_rdy_iu {
353 __be32 requested_offset;
354 __be32 write_data_len;
355 __be32 _r_a;
356 } __attribute__ ((packed));
358 struct ssp_tmf_iu {
359 u8 lun[8];
360 u16 _r_a;
361 u8 tmf;
362 u8 _r_b;
363 __be16 tag;
364 u8 _r_c[14];
365 } __attribute__ ((packed));
367 /* ---------- SMP ---------- */
369 struct report_general_resp {
370 __be16 change_count;
371 __be16 route_indexes;
372 u8 _r_a;
373 u8 num_phys;
375 u8 conf_route_table:1;
376 u8 configuring:1;
377 u8 config_others:1;
378 u8 orej_retry_supp:1;
379 u8 stp_cont_awt:1;
380 u8 self_config:1;
381 u8 zone_config:1;
382 u8 t2t_supp:1;
384 u8 _r_c;
386 u8 enclosure_logical_id[8];
388 u8 _r_d[12];
389 } __attribute__ ((packed));
391 struct discover_resp {
392 u8 _r_a[5];
394 u8 phy_id;
395 __be16 _r_b;
397 u8 _r_c:4;
398 u8 attached_dev_type:3;
399 u8 _r_d:1;
401 u8 linkrate:4;
402 u8 _r_e:4;
404 u8 attached_sata_host:1;
405 u8 iproto:3;
406 u8 _r_f:4;
408 u8 attached_sata_dev:1;
409 u8 tproto:3;
410 u8 _r_g:3;
411 u8 attached_sata_ps:1;
413 u8 sas_addr[8];
414 u8 attached_sas_addr[8];
415 u8 attached_phy_id;
417 u8 _r_h[7];
419 u8 hmin_linkrate:4;
420 u8 pmin_linkrate:4;
421 u8 hmax_linkrate:4;
422 u8 pmax_linkrate:4;
424 u8 change_count;
426 u8 pptv:4;
427 u8 _r_i:3;
428 u8 virtual:1;
430 u8 routing_attr:4;
431 u8 _r_j:4;
433 u8 conn_type;
434 u8 conn_el_index;
435 u8 conn_phy_link;
437 u8 _r_k[8];
438 } __attribute__ ((packed));
440 struct report_phy_sata_resp {
441 u8 _r_a[5];
443 u8 phy_id;
444 u8 _r_b;
446 u8 affil_valid:1;
447 u8 affil_supp:1;
448 u8 _r_c:6;
450 u32 _r_d;
452 u8 stp_sas_addr[8];
454 struct dev_to_host_fis fis;
456 u32 _r_e;
458 u8 affil_stp_ini_addr[8];
460 __be32 crc;
461 } __attribute__ ((packed));
463 struct smp_resp {
464 u8 frame_type;
465 u8 function;
466 u8 result;
467 u8 reserved;
468 union {
469 struct report_general_resp rg;
470 struct discover_resp disc;
471 struct report_phy_sata_resp rps;
473 } __attribute__ ((packed));
475 #elif defined(__BIG_ENDIAN_BITFIELD)
476 struct sas_identify_frame {
477 /* Byte 0 */
478 u8 _un0:1;
479 u8 dev_type:3;
480 u8 frame_type:4;
482 /* Byte 1 */
483 u8 _un1;
485 /* Byte 2 */
486 union {
487 struct {
488 u8 _un247:4;
489 u8 ssp_iport:1;
490 u8 stp_iport:1;
491 u8 smp_iport:1;
492 u8 _un20:1;
494 u8 initiator_bits;
497 /* Byte 3 */
498 union {
499 struct {
500 u8 _un347:4;
501 u8 ssp_tport:1;
502 u8 stp_tport:1;
503 u8 smp_tport:1;
504 u8 _un30:1;
506 u8 target_bits;
509 /* Byte 4 - 11 */
510 u8 _un4_11[8];
512 /* Byte 12 - 19 */
513 u8 sas_addr[SAS_ADDR_SIZE];
515 /* Byte 20 */
516 u8 phy_id;
518 u8 _un21_27[7];
520 __be32 crc;
521 } __attribute__ ((packed));
523 struct ssp_frame_hdr {
524 u8 frame_type;
525 u8 hashed_dest_addr[HASHED_SAS_ADDR_SIZE];
526 u8 _r_a;
527 u8 hashed_src_addr[HASHED_SAS_ADDR_SIZE];
528 __be16 _r_b;
530 u8 _r_c:5;
531 u8 retry_data_frames:1;
532 u8 retransmit:1;
533 u8 changing_data_ptr:1;
535 u8 _r_d:6;
536 u8 num_fill_bytes:2;
538 u32 _r_e;
539 __be16 tag;
540 __be16 tptt;
541 __be32 data_offs;
542 } __attribute__ ((packed));
544 struct ssp_response_iu {
545 u8 _r_a[10];
547 u8 _r_b:6;
548 u8 datapres:2;
550 u8 status;
552 u32 _r_c;
554 __be32 sense_data_len;
555 __be32 response_data_len;
557 u8 resp_data[0];
558 u8 sense_data[0];
559 } __attribute__ ((packed));
561 struct ssp_command_iu {
562 u8 lun[8];
563 u8 _r_a;
565 union {
566 struct {
567 u8 efb:1;
568 u8 prio:4;
569 u8 attr:3;
571 u8 efb_prio_attr;
574 u8 _r_b;
576 u8 add_cdb_len:6;
577 u8 _r_c:2;
579 u8 cdb[16];
580 u8 add_cdb[0];
581 } __attribute__ ((packed));
583 struct xfer_rdy_iu {
584 __be32 requested_offset;
585 __be32 write_data_len;
586 __be32 _r_a;
587 } __attribute__ ((packed));
589 struct ssp_tmf_iu {
590 u8 lun[8];
591 u16 _r_a;
592 u8 tmf;
593 u8 _r_b;
594 __be16 tag;
595 u8 _r_c[14];
596 } __attribute__ ((packed));
598 /* ---------- SMP ---------- */
600 struct report_general_resp {
601 __be16 change_count;
602 __be16 route_indexes;
603 u8 _r_a;
604 u8 num_phys;
606 u8 t2t_supp:1;
607 u8 zone_config:1;
608 u8 self_config:1;
609 u8 stp_cont_awt:1;
610 u8 orej_retry_supp:1;
611 u8 config_others:1;
612 u8 configuring:1;
613 u8 conf_route_table:1;
615 u8 _r_c;
617 u8 enclosure_logical_id[8];
619 u8 _r_d[12];
620 } __attribute__ ((packed));
622 struct discover_resp {
623 u8 _r_a[5];
625 u8 phy_id;
626 __be16 _r_b;
628 u8 _r_d:1;
629 u8 attached_dev_type:3;
630 u8 _r_c:4;
632 u8 _r_e:4;
633 u8 linkrate:4;
635 u8 _r_f:4;
636 u8 iproto:3;
637 u8 attached_sata_host:1;
639 u8 attached_sata_ps:1;
640 u8 _r_g:3;
641 u8 tproto:3;
642 u8 attached_sata_dev:1;
644 u8 sas_addr[8];
645 u8 attached_sas_addr[8];
646 u8 attached_phy_id;
648 u8 _r_h[7];
650 u8 pmin_linkrate:4;
651 u8 hmin_linkrate:4;
652 u8 pmax_linkrate:4;
653 u8 hmax_linkrate:4;
655 u8 change_count;
657 u8 virtual:1;
658 u8 _r_i:3;
659 u8 pptv:4;
661 u8 _r_j:4;
662 u8 routing_attr:4;
664 u8 conn_type;
665 u8 conn_el_index;
666 u8 conn_phy_link;
668 u8 _r_k[8];
669 } __attribute__ ((packed));
671 struct report_phy_sata_resp {
672 u8 _r_a[5];
674 u8 phy_id;
675 u8 _r_b;
677 u8 _r_c:6;
678 u8 affil_supp:1;
679 u8 affil_valid:1;
681 u32 _r_d;
683 u8 stp_sas_addr[8];
685 struct dev_to_host_fis fis;
687 u32 _r_e;
689 u8 affil_stp_ini_addr[8];
691 __be32 crc;
692 } __attribute__ ((packed));
694 struct smp_resp {
695 u8 frame_type;
696 u8 function;
697 u8 result;
698 u8 reserved;
699 union {
700 struct report_general_resp rg;
701 struct discover_resp disc;
702 struct report_phy_sata_resp rps;
704 } __attribute__ ((packed));
706 #else
707 #error "Bitfield order not defined!"
708 #endif
710 #endif /* _SAS_H_ */