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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 */
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#define EMPTY_ATOM_BYTE 0xFF
75
76#define OPAL_INVAL_PARAM 12
77#define OPAL_MANUFACTURED_INACTIVE 0x08
78#define OPAL_DISCOVERY_COMID 0x0001
79
80#define LOCKING_RANGE_NON_GLOBAL 0x03
81/*
82 * User IDs used in the TCG storage SSCs
83 * Derived from: TCG_Storage_Architecture_Core_Spec_v2.01_r1.00
84 * Section: 6.3 Assigned UIDs
85 */
86#define OPAL_METHOD_LENGTH 8
87#define OPAL_MSID_KEYLEN 15
88#define OPAL_UID_LENGTH_HALF 4
89
90/*
91 * Boolean operators from TCG Core spec 2.01 Section:
92 * 5.1.3.11
93 * Table 61
94 */
95#define OPAL_BOOLEAN_AND 0
96#define OPAL_BOOLEAN_OR 1
97#define OPAL_BOOLEAN_NOT 2
98
99/* Enum to index OPALUID array */
100enum opal_uid {
101 /* users */
102 OPAL_SMUID_UID,
103 OPAL_THISSP_UID,
104 OPAL_ADMINSP_UID,
105 OPAL_LOCKINGSP_UID,
106 OPAL_ENTERPRISE_LOCKINGSP_UID,
107 OPAL_ANYBODY_UID,
108 OPAL_SID_UID,
109 OPAL_ADMIN1_UID,
110 OPAL_USER1_UID,
111 OPAL_USER2_UID,
112 OPAL_PSID_UID,
113 OPAL_ENTERPRISE_BANDMASTER0_UID,
114 OPAL_ENTERPRISE_ERASEMASTER_UID,
115 /* tables */
116 OPAL_TABLE_TABLE,
117 OPAL_LOCKINGRANGE_GLOBAL,
118 OPAL_LOCKINGRANGE_ACE_START_TO_KEY,
119 OPAL_LOCKINGRANGE_ACE_RDLOCKED,
120 OPAL_LOCKINGRANGE_ACE_WRLOCKED,
121 OPAL_MBRCONTROL,
122 OPAL_MBR,
123 OPAL_AUTHORITY_TABLE,
124 OPAL_C_PIN_TABLE,
125 OPAL_LOCKING_INFO_TABLE,
126 OPAL_ENTERPRISE_LOCKING_INFO_TABLE,
127 OPAL_DATASTORE,
128 /* C_PIN_TABLE object ID's */
129 OPAL_C_PIN_MSID,
130 OPAL_C_PIN_SID,
131 OPAL_C_PIN_ADMIN1,
132 /* half UID's (only first 4 bytes used) */
133 OPAL_HALF_UID_AUTHORITY_OBJ_REF,
134 OPAL_HALF_UID_BOOLEAN_ACE,
135 /* omitted optional parameter */
136 OPAL_UID_HEXFF,
137};
138
139/* Enum for indexing the OPALMETHOD array */
140enum opal_method {
141 OPAL_PROPERTIES,
142 OPAL_STARTSESSION,
143 OPAL_REVERT,
144 OPAL_ACTIVATE,
145 OPAL_EGET,
146 OPAL_ESET,
147 OPAL_NEXT,
148 OPAL_EAUTHENTICATE,
149 OPAL_GETACL,
150 OPAL_GENKEY,
151 OPAL_REVERTSP,
152 OPAL_GET,
153 OPAL_SET,
154 OPAL_AUTHENTICATE,
155 OPAL_RANDOM,
156 OPAL_ERASE,
157};
158
159enum opal_token {
160 /* Boolean */
161 OPAL_TRUE = 0x01,
162 OPAL_FALSE = 0x00,
163 OPAL_BOOLEAN_EXPR = 0x03,
164 /* cellblocks */
165 OPAL_TABLE = 0x00,
166 OPAL_STARTROW = 0x01,
167 OPAL_ENDROW = 0x02,
168 OPAL_STARTCOLUMN = 0x03,
169 OPAL_ENDCOLUMN = 0x04,
170 OPAL_VALUES = 0x01,
171 /* table table */
172 OPAL_TABLE_UID = 0x00,
173 OPAL_TABLE_NAME = 0x01,
174 OPAL_TABLE_COMMON = 0x02,
175 OPAL_TABLE_TEMPLATE = 0x03,
176 OPAL_TABLE_KIND = 0x04,
177 OPAL_TABLE_COLUMN = 0x05,
178 OPAL_TABLE_COLUMNS = 0x06,
179 OPAL_TABLE_ROWS = 0x07,
180 OPAL_TABLE_ROWS_FREE = 0x08,
181 OPAL_TABLE_ROW_BYTES = 0x09,
182 OPAL_TABLE_LASTID = 0x0A,
183 OPAL_TABLE_MIN = 0x0B,
184 OPAL_TABLE_MAX = 0x0C,
185 /* authority table */
186 OPAL_PIN = 0x03,
187 /* locking tokens */
188 OPAL_RANGESTART = 0x03,
189 OPAL_RANGELENGTH = 0x04,
190 OPAL_READLOCKENABLED = 0x05,
191 OPAL_WRITELOCKENABLED = 0x06,
192 OPAL_READLOCKED = 0x07,
193 OPAL_WRITELOCKED = 0x08,
194 OPAL_ACTIVEKEY = 0x0A,
195 /* lockingsp table */
196 OPAL_LIFECYCLE = 0x06,
197 /* locking info table */
198 OPAL_MAXRANGES = 0x04,
199 /* mbr control */
200 OPAL_MBRENABLE = 0x01,
201 OPAL_MBRDONE = 0x02,
202 /* properties */
203 OPAL_HOSTPROPERTIES = 0x00,
204 /* atoms */
205 OPAL_STARTLIST = 0xf0,
206 OPAL_ENDLIST = 0xf1,
207 OPAL_STARTNAME = 0xf2,
208 OPAL_ENDNAME = 0xf3,
209 OPAL_CALL = 0xf8,
210 OPAL_ENDOFDATA = 0xf9,
211 OPAL_ENDOFSESSION = 0xfa,
212 OPAL_STARTTRANSACTON = 0xfb,
213 OPAL_ENDTRANSACTON = 0xfC,
214 OPAL_EMPTYATOM = 0xff,
215 OPAL_WHERE = 0x00,
216};
217
218/* Locking state for a locking range */
219enum opal_lockingstate {
220 OPAL_LOCKING_READWRITE = 0x01,
221 OPAL_LOCKING_READONLY = 0x02,
222 OPAL_LOCKING_LOCKED = 0x03,
223};
224
225enum opal_parameter {
226 OPAL_SUM_SET_LIST = 0x060000,
227};
228
229enum opal_revertlsp {
230 OPAL_KEEP_GLOBAL_RANGE_KEY = 0x060000,
231};
232
233/* Packets derived from:
234 * TCG_Storage_Architecture_Core_Spec_v2.01_r1.00
235 * Secion: 3.2.3 ComPackets, Packets & Subpackets
236 */
237
238/* Comm Packet (header) for transmissions. */
239struct opal_compacket {
240 __be32 reserved0;
241 u8 extendedComID[4];
242 __be32 outstandingData;
243 __be32 minTransfer;
244 __be32 length;
245};
246
247/* Packet structure. */
248struct opal_packet {
249 __be32 tsn;
250 __be32 hsn;
251 __be32 seq_number;
252 __be16 reserved0;
253 __be16 ack_type;
254 __be32 acknowledgment;
255 __be32 length;
256};
257
258/* Data sub packet header */
259struct opal_data_subpacket {
260 u8 reserved0[6];
261 __be16 kind;
262 __be32 length;
263};
264
265/* header of a response */
266struct opal_header {
267 struct opal_compacket cp;
268 struct opal_packet pkt;
269 struct opal_data_subpacket subpkt;
270};
271
272#define FC_TPER 0x0001
273#define FC_LOCKING 0x0002
274#define FC_GEOMETRY 0x0003
275#define FC_ENTERPRISE 0x0100
276#define FC_DATASTORE 0x0202
277#define FC_SINGLEUSER 0x0201
278#define FC_OPALV100 0x0200
279#define FC_OPALV200 0x0203
280
281/*
282 * The Discovery 0 Header. As defined in
283 * Opal SSC Documentation
284 * Section: 3.3.5 Capability Discovery
285 */
286struct d0_header {
287 __be32 length; /* the length of the header 48 in 2.00.100 */
288 __be32 revision; /**< revision of the header 1 in 2.00.100 */
289 __be32 reserved01;
290 __be32 reserved02;
291 /*
292 * the remainder of the structure is vendor specific and will not be
293 * addressed now
294 */
295 u8 ignored[32];
296};
297
298/*
299 * TPer Feature Descriptor. Contains flags indicating support for the
300 * TPer features described in the OPAL specification. The names match the
301 * OPAL terminology
302 *
303 * code == 0x001 in 2.00.100
304 */
305struct d0_tper_features {
306 /*
307 * supported_features bits:
308 * bit 7: reserved
309 * bit 6: com ID management
310 * bit 5: reserved
311 * bit 4: streaming support
312 * bit 3: buffer management
313 * bit 2: ACK/NACK
314 * bit 1: async
315 * bit 0: sync
316 */
317 u8 supported_features;
318 /*
319 * bytes 5 through 15 are reserved, but we represent the first 3 as
320 * u8 to keep the other two 32bits integers aligned.
321 */
322 u8 reserved01[3];
323 __be32 reserved02;
324 __be32 reserved03;
325};
326
327/*
328 * Locking Feature Descriptor. Contains flags indicating support for the
329 * locking features described in the OPAL specification. The names match the
330 * OPAL terminology
331 *
332 * code == 0x0002 in 2.00.100
333 */
334struct d0_locking_features {
335 /*
336 * supported_features bits:
337 * bits 6-7: reserved
338 * bit 5: MBR done
339 * bit 4: MBR enabled
340 * bit 3: media encryption
341 * bit 2: locked
342 * bit 1: locking enabled
343 * bit 0: locking supported
344 */
345 u8 supported_features;
346 /*
347 * bytes 5 through 15 are reserved, but we represent the first 3 as
348 * u8 to keep the other two 32bits integers aligned.
349 */
350 u8 reserved01[3];
351 __be32 reserved02;
352 __be32 reserved03;
353};
354
355/*
356 * Geometry Feature Descriptor. Contains flags indicating support for the
357 * geometry features described in the OPAL specification. The names match the
358 * OPAL terminology
359 *
360 * code == 0x0003 in 2.00.100
361 */
362struct d0_geometry_features {
363 /*
364 * skip 32 bits from header, needed to align the struct to 64 bits.
365 */
366 u8 header[4];
367 /*
368 * reserved01:
369 * bits 1-6: reserved
370 * bit 0: align
371 */
372 u8 reserved01;
373 u8 reserved02[7];
374 __be32 logical_block_size;
375 __be64 alignment_granularity;
376 __be64 lowest_aligned_lba;
377};
378
379/*
380 * Enterprise SSC Feature
381 *
382 * code == 0x0100
383 */
384struct d0_enterprise_ssc {
385 __be16 baseComID;
386 __be16 numComIDs;
387 /* range_crossing:
388 * bits 1-6: reserved
389 * bit 0: range crossing
390 */
391 u8 range_crossing;
392 u8 reserved01;
393 __be16 reserved02;
394 __be32 reserved03;
395 __be32 reserved04;
396};
397
398/*
399 * Opal V1 feature
400 *
401 * code == 0x0200
402 */
403struct d0_opal_v100 {
404 __be16 baseComID;
405 __be16 numComIDs;
406};
407
408/*
409 * Single User Mode feature
410 *
411 * code == 0x0201
412 */
413struct d0_single_user_mode {
414 __be32 num_locking_objects;
415 /* reserved01:
416 * bit 0: any
417 * bit 1: all
418 * bit 2: policy
419 * bits 3-7: reserved
420 */
421 u8 reserved01;
422 u8 reserved02;
423 __be16 reserved03;
424 __be32 reserved04;
425};
426
427/*
428 * Additonal Datastores feature
429 *
430 * code == 0x0202
431 */
432struct d0_datastore_table {
433 __be16 reserved01;
434 __be16 max_tables;
435 __be32 max_size_tables;
436 __be32 table_size_alignment;
437};
438
439/*
440 * OPAL 2.0 feature
441 *
442 * code == 0x0203
443 */
444struct d0_opal_v200 {
445 __be16 baseComID;
446 __be16 numComIDs;
447 /* range_crossing:
448 * bits 1-6: reserved
449 * bit 0: range crossing
450 */
451 u8 range_crossing;
452 /* num_locking_admin_auth:
453 * not aligned to 16 bits, so use two u8.
454 * stored in big endian:
455 * 0: MSB
456 * 1: LSB
457 */
458 u8 num_locking_admin_auth[2];
459 /* num_locking_user_auth:
460 * not aligned to 16 bits, so use two u8.
461 * stored in big endian:
462 * 0: MSB
463 * 1: LSB
464 */
465 u8 num_locking_user_auth[2];
466 u8 initialPIN;
467 u8 revertedPIN;
468 u8 reserved01;
469 __be32 reserved02;
470};
471
472/* Union of features used to parse the discovery 0 response */
473struct d0_features {
474 __be16 code;
475 /*
476 * r_version bits:
477 * bits 4-7: version
478 * bits 0-3: reserved
479 */
480 u8 r_version;
481 u8 length;
482 u8 features[];
483};
484
485#endif /* _OPAL_PROTO_H */