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1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * Copyright © 2016 Intel Corporation
4 *
5 * Authors:
6 * Rafael Antognolli <rafael.antognolli@intel.com>
7 * Scott Bauer <scott.bauer@intel.com>
8 */
9#include <linux/types.h>
10
11#ifndef _OPAL_PROTO_H
12#define _OPAL_PROTO_H
13
14/*
15 * These constant values come from:
16 * SPC-4 section
17 * 6.30 SECURITY PROTOCOL IN command / table 265.
18 */
19enum {
20 TCG_SECP_00 = 0,
21 TCG_SECP_01,
22};
23
24/*
25 * Token defs derived from:
26 * TCG_Storage_Architecture_Core_Spec_v2.01_r1.00
27 * 3.2.2 Data Stream Encoding
28 */
29enum opal_response_token {
30 OPAL_DTA_TOKENID_BYTESTRING = 0xe0,
31 OPAL_DTA_TOKENID_SINT = 0xe1,
32 OPAL_DTA_TOKENID_UINT = 0xe2,
33 OPAL_DTA_TOKENID_TOKEN = 0xe3, /* actual token is returned */
34 OPAL_DTA_TOKENID_INVALID = 0X0
35};
36
37#define DTAERROR_NO_METHOD_STATUS 0x89
38#define GENERIC_HOST_SESSION_NUM 0x41
39#define FIRST_TPER_SESSION_NUM 4096
40
41#define TPER_SYNC_SUPPORTED 0x01
42/* FC_LOCKING features */
43#define LOCKING_SUPPORTED_MASK 0x01
44#define LOCKING_ENABLED_MASK 0x02
45#define LOCKED_MASK 0x04
46#define MBR_ENABLED_MASK 0x10
47#define MBR_DONE_MASK 0x20
48
49#define TINY_ATOM_DATA_MASK 0x3F
50#define TINY_ATOM_SIGNED 0x40
51
52#define SHORT_ATOM_ID 0x80
53#define SHORT_ATOM_BYTESTRING 0x20
54#define SHORT_ATOM_SIGNED 0x10
55#define SHORT_ATOM_LEN_MASK 0xF
56
57#define MEDIUM_ATOM_ID 0xC0
58#define MEDIUM_ATOM_BYTESTRING 0x10
59#define MEDIUM_ATOM_SIGNED 0x8
60#define MEDIUM_ATOM_LEN_MASK 0x7
61
62#define LONG_ATOM_ID 0xe0
63#define LONG_ATOM_BYTESTRING 0x2
64#define LONG_ATOM_SIGNED 0x1
65
66/* Derived from TCG Core spec 2.01 Section:
67 * 3.2.2.1
68 * Data Type
69 */
70#define TINY_ATOM_BYTE 0x7F
71#define SHORT_ATOM_BYTE 0xBF
72#define MEDIUM_ATOM_BYTE 0xDF
73#define LONG_ATOM_BYTE 0xE3
74
75#define OPAL_INVAL_PARAM 12
76#define OPAL_MANUFACTURED_INACTIVE 0x08
77#define OPAL_DISCOVERY_COMID 0x0001
78
79#define LOCKING_RANGE_NON_GLOBAL 0x03
80/*
81 * User IDs used in the TCG storage SSCs
82 * Derived from: TCG_Storage_Architecture_Core_Spec_v2.01_r1.00
83 * Section: 6.3 Assigned UIDs
84 */
85#define OPAL_METHOD_LENGTH 8
86#define OPAL_MSID_KEYLEN 15
87#define OPAL_UID_LENGTH_HALF 4
88
89/* Enum to index OPALUID array */
90enum opal_uid {
91 /* users */
92 OPAL_SMUID_UID,
93 OPAL_THISSP_UID,
94 OPAL_ADMINSP_UID,
95 OPAL_LOCKINGSP_UID,
96 OPAL_ENTERPRISE_LOCKINGSP_UID,
97 OPAL_ANYBODY_UID,
98 OPAL_SID_UID,
99 OPAL_ADMIN1_UID,
100 OPAL_USER1_UID,
101 OPAL_USER2_UID,
102 OPAL_PSID_UID,
103 OPAL_ENTERPRISE_BANDMASTER0_UID,
104 OPAL_ENTERPRISE_ERASEMASTER_UID,
105 /* tables */
106 OPAL_TABLE_TABLE,
107 OPAL_LOCKINGRANGE_GLOBAL,
108 OPAL_LOCKINGRANGE_ACE_RDLOCKED,
109 OPAL_LOCKINGRANGE_ACE_WRLOCKED,
110 OPAL_MBRCONTROL,
111 OPAL_MBR,
112 OPAL_AUTHORITY_TABLE,
113 OPAL_C_PIN_TABLE,
114 OPAL_LOCKING_INFO_TABLE,
115 OPAL_ENTERPRISE_LOCKING_INFO_TABLE,
116 OPAL_DATASTORE,
117 /* C_PIN_TABLE object ID's */
118 OPAL_C_PIN_MSID,
119 OPAL_C_PIN_SID,
120 OPAL_C_PIN_ADMIN1,
121 /* half UID's (only first 4 bytes used) */
122 OPAL_HALF_UID_AUTHORITY_OBJ_REF,
123 OPAL_HALF_UID_BOOLEAN_ACE,
124 /* omitted optional parameter */
125 OPAL_UID_HEXFF,
126};
127
128/* Enum for indexing the OPALMETHOD array */
129enum opal_method {
130 OPAL_PROPERTIES,
131 OPAL_STARTSESSION,
132 OPAL_REVERT,
133 OPAL_ACTIVATE,
134 OPAL_EGET,
135 OPAL_ESET,
136 OPAL_NEXT,
137 OPAL_EAUTHENTICATE,
138 OPAL_GETACL,
139 OPAL_GENKEY,
140 OPAL_REVERTSP,
141 OPAL_GET,
142 OPAL_SET,
143 OPAL_AUTHENTICATE,
144 OPAL_RANDOM,
145 OPAL_ERASE,
146};
147
148enum opal_token {
149 /* Boolean */
150 OPAL_TRUE = 0x01,
151 OPAL_FALSE = 0x00,
152 OPAL_BOOLEAN_EXPR = 0x03,
153 /* cellblocks */
154 OPAL_TABLE = 0x00,
155 OPAL_STARTROW = 0x01,
156 OPAL_ENDROW = 0x02,
157 OPAL_STARTCOLUMN = 0x03,
158 OPAL_ENDCOLUMN = 0x04,
159 OPAL_VALUES = 0x01,
160 /* table table */
161 OPAL_TABLE_UID = 0x00,
162 OPAL_TABLE_NAME = 0x01,
163 OPAL_TABLE_COMMON = 0x02,
164 OPAL_TABLE_TEMPLATE = 0x03,
165 OPAL_TABLE_KIND = 0x04,
166 OPAL_TABLE_COLUMN = 0x05,
167 OPAL_TABLE_COLUMNS = 0x06,
168 OPAL_TABLE_ROWS = 0x07,
169 OPAL_TABLE_ROWS_FREE = 0x08,
170 OPAL_TABLE_ROW_BYTES = 0x09,
171 OPAL_TABLE_LASTID = 0x0A,
172 OPAL_TABLE_MIN = 0x0B,
173 OPAL_TABLE_MAX = 0x0C,
174 /* authority table */
175 OPAL_PIN = 0x03,
176 /* locking tokens */
177 OPAL_RANGESTART = 0x03,
178 OPAL_RANGELENGTH = 0x04,
179 OPAL_READLOCKENABLED = 0x05,
180 OPAL_WRITELOCKENABLED = 0x06,
181 OPAL_READLOCKED = 0x07,
182 OPAL_WRITELOCKED = 0x08,
183 OPAL_ACTIVEKEY = 0x0A,
184 /* lockingsp table */
185 OPAL_LIFECYCLE = 0x06,
186 /* locking info table */
187 OPAL_MAXRANGES = 0x04,
188 /* mbr control */
189 OPAL_MBRENABLE = 0x01,
190 OPAL_MBRDONE = 0x02,
191 /* properties */
192 OPAL_HOSTPROPERTIES = 0x00,
193 /* atoms */
194 OPAL_STARTLIST = 0xf0,
195 OPAL_ENDLIST = 0xf1,
196 OPAL_STARTNAME = 0xf2,
197 OPAL_ENDNAME = 0xf3,
198 OPAL_CALL = 0xf8,
199 OPAL_ENDOFDATA = 0xf9,
200 OPAL_ENDOFSESSION = 0xfa,
201 OPAL_STARTTRANSACTON = 0xfb,
202 OPAL_ENDTRANSACTON = 0xfC,
203 OPAL_EMPTYATOM = 0xff,
204 OPAL_WHERE = 0x00,
205};
206
207/* Locking state for a locking range */
208enum opal_lockingstate {
209 OPAL_LOCKING_READWRITE = 0x01,
210 OPAL_LOCKING_READONLY = 0x02,
211 OPAL_LOCKING_LOCKED = 0x03,
212};
213
214enum opal_parameter {
215 OPAL_SUM_SET_LIST = 0x060000,
216};
217
218/* Packets derived from:
219 * TCG_Storage_Architecture_Core_Spec_v2.01_r1.00
220 * Secion: 3.2.3 ComPackets, Packets & Subpackets
221 */
222
223/* Comm Packet (header) for transmissions. */
224struct opal_compacket {
225 __be32 reserved0;
226 u8 extendedComID[4];
227 __be32 outstandingData;
228 __be32 minTransfer;
229 __be32 length;
230};
231
232/* Packet structure. */
233struct opal_packet {
234 __be32 tsn;
235 __be32 hsn;
236 __be32 seq_number;
237 __be16 reserved0;
238 __be16 ack_type;
239 __be32 acknowledgment;
240 __be32 length;
241};
242
243/* Data sub packet header */
244struct opal_data_subpacket {
245 u8 reserved0[6];
246 __be16 kind;
247 __be32 length;
248};
249
250/* header of a response */
251struct opal_header {
252 struct opal_compacket cp;
253 struct opal_packet pkt;
254 struct opal_data_subpacket subpkt;
255};
256
257#define FC_TPER 0x0001
258#define FC_LOCKING 0x0002
259#define FC_GEOMETRY 0x0003
260#define FC_ENTERPRISE 0x0100
261#define FC_DATASTORE 0x0202
262#define FC_SINGLEUSER 0x0201
263#define FC_OPALV100 0x0200
264#define FC_OPALV200 0x0203
265
266/*
267 * The Discovery 0 Header. As defined in
268 * Opal SSC Documentation
269 * Section: 3.3.5 Capability Discovery
270 */
271struct d0_header {
272 __be32 length; /* the length of the header 48 in 2.00.100 */
273 __be32 revision; /**< revision of the header 1 in 2.00.100 */
274 __be32 reserved01;
275 __be32 reserved02;
276 /*
277 * the remainder of the structure is vendor specific and will not be
278 * addressed now
279 */
280 u8 ignored[32];
281};
282
283/*
284 * TPer Feature Descriptor. Contains flags indicating support for the
285 * TPer features described in the OPAL specification. The names match the
286 * OPAL terminology
287 *
288 * code == 0x001 in 2.00.100
289 */
290struct d0_tper_features {
291 /*
292 * supported_features bits:
293 * bit 7: reserved
294 * bit 6: com ID management
295 * bit 5: reserved
296 * bit 4: streaming support
297 * bit 3: buffer management
298 * bit 2: ACK/NACK
299 * bit 1: async
300 * bit 0: sync
301 */
302 u8 supported_features;
303 /*
304 * bytes 5 through 15 are reserved, but we represent the first 3 as
305 * u8 to keep the other two 32bits integers aligned.
306 */
307 u8 reserved01[3];
308 __be32 reserved02;
309 __be32 reserved03;
310};
311
312/*
313 * Locking Feature Descriptor. Contains flags indicating support for the
314 * locking features described in the OPAL specification. The names match the
315 * OPAL terminology
316 *
317 * code == 0x0002 in 2.00.100
318 */
319struct d0_locking_features {
320 /*
321 * supported_features bits:
322 * bits 6-7: reserved
323 * bit 5: MBR done
324 * bit 4: MBR enabled
325 * bit 3: media encryption
326 * bit 2: locked
327 * bit 1: locking enabled
328 * bit 0: locking supported
329 */
330 u8 supported_features;
331 /*
332 * bytes 5 through 15 are reserved, but we represent the first 3 as
333 * u8 to keep the other two 32bits integers aligned.
334 */
335 u8 reserved01[3];
336 __be32 reserved02;
337 __be32 reserved03;
338};
339
340/*
341 * Geometry Feature Descriptor. Contains flags indicating support for the
342 * geometry features described in the OPAL specification. The names match the
343 * OPAL terminology
344 *
345 * code == 0x0003 in 2.00.100
346 */
347struct d0_geometry_features {
348 /*
349 * skip 32 bits from header, needed to align the struct to 64 bits.
350 */
351 u8 header[4];
352 /*
353 * reserved01:
354 * bits 1-6: reserved
355 * bit 0: align
356 */
357 u8 reserved01;
358 u8 reserved02[7];
359 __be32 logical_block_size;
360 __be64 alignment_granularity;
361 __be64 lowest_aligned_lba;
362};
363
364/*
365 * Enterprise SSC Feature
366 *
367 * code == 0x0100
368 */
369struct d0_enterprise_ssc {
370 __be16 baseComID;
371 __be16 numComIDs;
372 /* range_crossing:
373 * bits 1-6: reserved
374 * bit 0: range crossing
375 */
376 u8 range_crossing;
377 u8 reserved01;
378 __be16 reserved02;
379 __be32 reserved03;
380 __be32 reserved04;
381};
382
383/*
384 * Opal V1 feature
385 *
386 * code == 0x0200
387 */
388struct d0_opal_v100 {
389 __be16 baseComID;
390 __be16 numComIDs;
391};
392
393/*
394 * Single User Mode feature
395 *
396 * code == 0x0201
397 */
398struct d0_single_user_mode {
399 __be32 num_locking_objects;
400 /* reserved01:
401 * bit 0: any
402 * bit 1: all
403 * bit 2: policy
404 * bits 3-7: reserved
405 */
406 u8 reserved01;
407 u8 reserved02;
408 __be16 reserved03;
409 __be32 reserved04;
410};
411
412/*
413 * Additonal Datastores feature
414 *
415 * code == 0x0202
416 */
417struct d0_datastore_table {
418 __be16 reserved01;
419 __be16 max_tables;
420 __be32 max_size_tables;
421 __be32 table_size_alignment;
422};
423
424/*
425 * OPAL 2.0 feature
426 *
427 * code == 0x0203
428 */
429struct d0_opal_v200 {
430 __be16 baseComID;
431 __be16 numComIDs;
432 /* range_crossing:
433 * bits 1-6: reserved
434 * bit 0: range crossing
435 */
436 u8 range_crossing;
437 /* num_locking_admin_auth:
438 * not aligned to 16 bits, so use two u8.
439 * stored in big endian:
440 * 0: MSB
441 * 1: LSB
442 */
443 u8 num_locking_admin_auth[2];
444 /* num_locking_user_auth:
445 * not aligned to 16 bits, so use two u8.
446 * stored in big endian:
447 * 0: MSB
448 * 1: LSB
449 */
450 u8 num_locking_user_auth[2];
451 u8 initialPIN;
452 u8 revertedPIN;
453 u8 reserved01;
454 __be32 reserved02;
455};
456
457/* Union of features used to parse the discovery 0 response */
458struct d0_features {
459 __be16 code;
460 /*
461 * r_version bits:
462 * bits 4-7: version
463 * bits 0-3: reserved
464 */
465 u8 r_version;
466 u8 length;
467 u8 features[];
468};
469
470#endif /* _OPAL_PROTO_H */
1/*
2 * Copyright © 2016 Intel Corporation
3 *
4 * Authors:
5 * Rafael Antognolli <rafael.antognolli@intel.com>
6 * Scott Bauer <scott.bauer@intel.com>
7 *
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms and conditions of the GNU General Public License,
10 * version 2, as published by the Free Software Foundation.
11 *
12 * This program is distributed in the hope it will be useful, but WITHOUT
13 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
15 * more details.
16 */
17#include <linux/types.h>
18
19#ifndef _OPAL_PROTO_H
20#define _OPAL_PROTO_H
21
22/*
23 * These constant values come from:
24 * SPC-4 section
25 * 6.30 SECURITY PROTOCOL IN command / table 265.
26 */
27enum {
28 TCG_SECP_00 = 0,
29 TCG_SECP_01,
30};
31
32/*
33 * Token defs derived from:
34 * TCG_Storage_Architecture_Core_Spec_v2.01_r1.00
35 * 3.2.2 Data Stream Encoding
36 */
37enum opal_response_token {
38 OPAL_DTA_TOKENID_BYTESTRING = 0xe0,
39 OPAL_DTA_TOKENID_SINT = 0xe1,
40 OPAL_DTA_TOKENID_UINT = 0xe2,
41 OPAL_DTA_TOKENID_TOKEN = 0xe3, /* actual token is returned */
42 OPAL_DTA_TOKENID_INVALID = 0X0
43};
44
45#define DTAERROR_NO_METHOD_STATUS 0x89
46#define GENERIC_HOST_SESSION_NUM 0x41
47
48#define TPER_SYNC_SUPPORTED 0x01
49#define MBR_ENABLED_MASK 0x10
50
51#define TINY_ATOM_DATA_MASK 0x3F
52#define TINY_ATOM_SIGNED 0x40
53
54#define SHORT_ATOM_ID 0x80
55#define SHORT_ATOM_BYTESTRING 0x20
56#define SHORT_ATOM_SIGNED 0x10
57#define SHORT_ATOM_LEN_MASK 0xF
58
59#define MEDIUM_ATOM_ID 0xC0
60#define MEDIUM_ATOM_BYTESTRING 0x10
61#define MEDIUM_ATOM_SIGNED 0x8
62#define MEDIUM_ATOM_LEN_MASK 0x7
63
64#define LONG_ATOM_ID 0xe0
65#define LONG_ATOM_BYTESTRING 0x2
66#define LONG_ATOM_SIGNED 0x1
67
68/* Derived from TCG Core spec 2.01 Section:
69 * 3.2.2.1
70 * Data Type
71 */
72#define TINY_ATOM_BYTE 0x7F
73#define SHORT_ATOM_BYTE 0xBF
74#define MEDIUM_ATOM_BYTE 0xDF
75#define LONG_ATOM_BYTE 0xE3
76
77#define OPAL_INVAL_PARAM 12
78#define OPAL_MANUFACTURED_INACTIVE 0x08
79#define OPAL_DISCOVERY_COMID 0x0001
80
81#define LOCKING_RANGE_NON_GLOBAL 0x03
82/*
83 * User IDs used in the TCG storage SSCs
84 * Derived from: TCG_Storage_Architecture_Core_Spec_v2.01_r1.00
85 * Section: 6.3 Assigned UIDs
86 */
87#define OPAL_UID_LENGTH 8
88#define OPAL_METHOD_LENGTH 8
89#define OPAL_MSID_KEYLEN 15
90#define OPAL_UID_LENGTH_HALF 4
91
92/* Enum to index OPALUID array */
93enum opal_uid {
94 /* users */
95 OPAL_SMUID_UID,
96 OPAL_THISSP_UID,
97 OPAL_ADMINSP_UID,
98 OPAL_LOCKINGSP_UID,
99 OPAL_ENTERPRISE_LOCKINGSP_UID,
100 OPAL_ANYBODY_UID,
101 OPAL_SID_UID,
102 OPAL_ADMIN1_UID,
103 OPAL_USER1_UID,
104 OPAL_USER2_UID,
105 OPAL_PSID_UID,
106 OPAL_ENTERPRISE_BANDMASTER0_UID,
107 OPAL_ENTERPRISE_ERASEMASTER_UID,
108 /* tables */
109 OPAL_LOCKINGRANGE_GLOBAL,
110 OPAL_LOCKINGRANGE_ACE_RDLOCKED,
111 OPAL_LOCKINGRANGE_ACE_WRLOCKED,
112 OPAL_MBRCONTROL,
113 OPAL_MBR,
114 OPAL_AUTHORITY_TABLE,
115 OPAL_C_PIN_TABLE,
116 OPAL_LOCKING_INFO_TABLE,
117 OPAL_ENTERPRISE_LOCKING_INFO_TABLE,
118 /* C_PIN_TABLE object ID's */
119 OPAL_C_PIN_MSID,
120 OPAL_C_PIN_SID,
121 OPAL_C_PIN_ADMIN1,
122 /* half UID's (only first 4 bytes used) */
123 OPAL_HALF_UID_AUTHORITY_OBJ_REF,
124 OPAL_HALF_UID_BOOLEAN_ACE,
125 /* omitted optional parameter */
126 OPAL_UID_HEXFF,
127};
128
129#define OPAL_METHOD_LENGTH 8
130
131/* Enum for indexing the OPALMETHOD array */
132enum opal_method {
133 OPAL_PROPERTIES,
134 OPAL_STARTSESSION,
135 OPAL_REVERT,
136 OPAL_ACTIVATE,
137 OPAL_EGET,
138 OPAL_ESET,
139 OPAL_NEXT,
140 OPAL_EAUTHENTICATE,
141 OPAL_GETACL,
142 OPAL_GENKEY,
143 OPAL_REVERTSP,
144 OPAL_GET,
145 OPAL_SET,
146 OPAL_AUTHENTICATE,
147 OPAL_RANDOM,
148 OPAL_ERASE,
149};
150
151enum opal_token {
152 /* Boolean */
153 OPAL_TRUE = 0x01,
154 OPAL_FALSE = 0x00,
155 OPAL_BOOLEAN_EXPR = 0x03,
156 /* cellblocks */
157 OPAL_TABLE = 0x00,
158 OPAL_STARTROW = 0x01,
159 OPAL_ENDROW = 0x02,
160 OPAL_STARTCOLUMN = 0x03,
161 OPAL_ENDCOLUMN = 0x04,
162 OPAL_VALUES = 0x01,
163 /* authority table */
164 OPAL_PIN = 0x03,
165 /* locking tokens */
166 OPAL_RANGESTART = 0x03,
167 OPAL_RANGELENGTH = 0x04,
168 OPAL_READLOCKENABLED = 0x05,
169 OPAL_WRITELOCKENABLED = 0x06,
170 OPAL_READLOCKED = 0x07,
171 OPAL_WRITELOCKED = 0x08,
172 OPAL_ACTIVEKEY = 0x0A,
173 /* locking info table */
174 OPAL_MAXRANGES = 0x04,
175 /* mbr control */
176 OPAL_MBRENABLE = 0x01,
177 OPAL_MBRDONE = 0x02,
178 /* properties */
179 OPAL_HOSTPROPERTIES = 0x00,
180 /* atoms */
181 OPAL_STARTLIST = 0xf0,
182 OPAL_ENDLIST = 0xf1,
183 OPAL_STARTNAME = 0xf2,
184 OPAL_ENDNAME = 0xf3,
185 OPAL_CALL = 0xf8,
186 OPAL_ENDOFDATA = 0xf9,
187 OPAL_ENDOFSESSION = 0xfa,
188 OPAL_STARTTRANSACTON = 0xfb,
189 OPAL_ENDTRANSACTON = 0xfC,
190 OPAL_EMPTYATOM = 0xff,
191 OPAL_WHERE = 0x00,
192};
193
194/* Locking state for a locking range */
195enum opal_lockingstate {
196 OPAL_LOCKING_READWRITE = 0x01,
197 OPAL_LOCKING_READONLY = 0x02,
198 OPAL_LOCKING_LOCKED = 0x03,
199};
200
201/* Packets derived from:
202 * TCG_Storage_Architecture_Core_Spec_v2.01_r1.00
203 * Secion: 3.2.3 ComPackets, Packets & Subpackets
204 */
205
206/* Comm Packet (header) for transmissions. */
207struct opal_compacket {
208 __be32 reserved0;
209 u8 extendedComID[4];
210 __be32 outstandingData;
211 __be32 minTransfer;
212 __be32 length;
213};
214
215/* Packet structure. */
216struct opal_packet {
217 __be32 tsn;
218 __be32 hsn;
219 __be32 seq_number;
220 __be16 reserved0;
221 __be16 ack_type;
222 __be32 acknowledgment;
223 __be32 length;
224};
225
226/* Data sub packet header */
227struct opal_data_subpacket {
228 u8 reserved0[6];
229 __be16 kind;
230 __be32 length;
231};
232
233/* header of a response */
234struct opal_header {
235 struct opal_compacket cp;
236 struct opal_packet pkt;
237 struct opal_data_subpacket subpkt;
238};
239
240#define FC_TPER 0x0001
241#define FC_LOCKING 0x0002
242#define FC_GEOMETRY 0x0003
243#define FC_ENTERPRISE 0x0100
244#define FC_DATASTORE 0x0202
245#define FC_SINGLEUSER 0x0201
246#define FC_OPALV100 0x0200
247#define FC_OPALV200 0x0203
248
249/*
250 * The Discovery 0 Header. As defined in
251 * Opal SSC Documentation
252 * Section: 3.3.5 Capability Discovery
253 */
254struct d0_header {
255 __be32 length; /* the length of the header 48 in 2.00.100 */
256 __be32 revision; /**< revision of the header 1 in 2.00.100 */
257 __be32 reserved01;
258 __be32 reserved02;
259 /*
260 * the remainder of the structure is vendor specific and will not be
261 * addressed now
262 */
263 u8 ignored[32];
264};
265
266/*
267 * TPer Feature Descriptor. Contains flags indicating support for the
268 * TPer features described in the OPAL specification. The names match the
269 * OPAL terminology
270 *
271 * code == 0x001 in 2.00.100
272 */
273struct d0_tper_features {
274 /*
275 * supported_features bits:
276 * bit 7: reserved
277 * bit 6: com ID management
278 * bit 5: reserved
279 * bit 4: streaming support
280 * bit 3: buffer management
281 * bit 2: ACK/NACK
282 * bit 1: async
283 * bit 0: sync
284 */
285 u8 supported_features;
286 /*
287 * bytes 5 through 15 are reserved, but we represent the first 3 as
288 * u8 to keep the other two 32bits integers aligned.
289 */
290 u8 reserved01[3];
291 __be32 reserved02;
292 __be32 reserved03;
293};
294
295/*
296 * Locking Feature Descriptor. Contains flags indicating support for the
297 * locking features described in the OPAL specification. The names match the
298 * OPAL terminology
299 *
300 * code == 0x0002 in 2.00.100
301 */
302struct d0_locking_features {
303 /*
304 * supported_features bits:
305 * bits 6-7: reserved
306 * bit 5: MBR done
307 * bit 4: MBR enabled
308 * bit 3: media encryption
309 * bit 2: locked
310 * bit 1: locking enabled
311 * bit 0: locking supported
312 */
313 u8 supported_features;
314 /*
315 * bytes 5 through 15 are reserved, but we represent the first 3 as
316 * u8 to keep the other two 32bits integers aligned.
317 */
318 u8 reserved01[3];
319 __be32 reserved02;
320 __be32 reserved03;
321};
322
323/*
324 * Geometry Feature Descriptor. Contains flags indicating support for the
325 * geometry features described in the OPAL specification. The names match the
326 * OPAL terminology
327 *
328 * code == 0x0003 in 2.00.100
329 */
330struct d0_geometry_features {
331 /*
332 * skip 32 bits from header, needed to align the struct to 64 bits.
333 */
334 u8 header[4];
335 /*
336 * reserved01:
337 * bits 1-6: reserved
338 * bit 0: align
339 */
340 u8 reserved01;
341 u8 reserved02[7];
342 __be32 logical_block_size;
343 __be64 alignment_granularity;
344 __be64 lowest_aligned_lba;
345};
346
347/*
348 * Enterprise SSC Feature
349 *
350 * code == 0x0100
351 */
352struct d0_enterprise_ssc {
353 __be16 baseComID;
354 __be16 numComIDs;
355 /* range_crossing:
356 * bits 1-6: reserved
357 * bit 0: range crossing
358 */
359 u8 range_crossing;
360 u8 reserved01;
361 __be16 reserved02;
362 __be32 reserved03;
363 __be32 reserved04;
364};
365
366/*
367 * Opal V1 feature
368 *
369 * code == 0x0200
370 */
371struct d0_opal_v100 {
372 __be16 baseComID;
373 __be16 numComIDs;
374};
375
376/*
377 * Single User Mode feature
378 *
379 * code == 0x0201
380 */
381struct d0_single_user_mode {
382 __be32 num_locking_objects;
383 /* reserved01:
384 * bit 0: any
385 * bit 1: all
386 * bit 2: policy
387 * bits 3-7: reserved
388 */
389 u8 reserved01;
390 u8 reserved02;
391 __be16 reserved03;
392 __be32 reserved04;
393};
394
395/*
396 * Additonal Datastores feature
397 *
398 * code == 0x0202
399 */
400struct d0_datastore_table {
401 __be16 reserved01;
402 __be16 max_tables;
403 __be32 max_size_tables;
404 __be32 table_size_alignment;
405};
406
407/*
408 * OPAL 2.0 feature
409 *
410 * code == 0x0203
411 */
412struct d0_opal_v200 {
413 __be16 baseComID;
414 __be16 numComIDs;
415 /* range_crossing:
416 * bits 1-6: reserved
417 * bit 0: range crossing
418 */
419 u8 range_crossing;
420 /* num_locking_admin_auth:
421 * not aligned to 16 bits, so use two u8.
422 * stored in big endian:
423 * 0: MSB
424 * 1: LSB
425 */
426 u8 num_locking_admin_auth[2];
427 /* num_locking_user_auth:
428 * not aligned to 16 bits, so use two u8.
429 * stored in big endian:
430 * 0: MSB
431 * 1: LSB
432 */
433 u8 num_locking_user_auth[2];
434 u8 initialPIN;
435 u8 revertedPIN;
436 u8 reserved01;
437 __be32 reserved02;
438};
439
440/* Union of features used to parse the discovery 0 response */
441struct d0_features {
442 __be16 code;
443 /*
444 * r_version bits:
445 * bits 4-7: version
446 * bits 0-3: reserved
447 */
448 u8 r_version;
449 u8 length;
450 u8 features[];
451};
452
453#endif /* _OPAL_PROTO_H */