File: tb_msgs.h

package info (click to toggle)
linux 4.19.20-1
  • links: PTS, VCS
  • area: main
  • in suites: buster
  • size: 954,852 kB
  • sloc: ansic: 16,749,828; asm: 271,286; makefile: 38,257; sh: 32,808; perl: 27,671; python: 21,022; cpp: 5,063; yacc: 4,648; lex: 2,585; awk: 1,385; ruby: 25; sed: 5
file content (548 lines) | stat: -rw-r--r-- 10,801 bytes parent folder | download | duplicates (6)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
/*
 * Thunderbolt control channel messages
 *
 * Copyright (C) 2014 Andreas Noever <andreas.noever@gmail.com>
 * Copyright (C) 2017, Intel Corporation
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#ifndef _TB_MSGS
#define _TB_MSGS

#include <linux/types.h>
#include <linux/uuid.h>

enum tb_cfg_space {
	TB_CFG_HOPS = 0,
	TB_CFG_PORT = 1,
	TB_CFG_SWITCH = 2,
	TB_CFG_COUNTERS = 3,
};

enum tb_cfg_error {
	TB_CFG_ERROR_PORT_NOT_CONNECTED = 0,
	TB_CFG_ERROR_LINK_ERROR = 1,
	TB_CFG_ERROR_INVALID_CONFIG_SPACE = 2,
	TB_CFG_ERROR_NO_SUCH_PORT = 4,
	TB_CFG_ERROR_ACK_PLUG_EVENT = 7, /* send as reply to TB_CFG_PKG_EVENT */
	TB_CFG_ERROR_LOOP = 8,
	TB_CFG_ERROR_HEC_ERROR_DETECTED = 12,
	TB_CFG_ERROR_FLOW_CONTROL_ERROR = 13,
};

/* common header */
struct tb_cfg_header {
	u32 route_hi:22;
	u32 unknown:10; /* highest order bit is set on replies */
	u32 route_lo;
} __packed;

/* additional header for read/write packets */
struct tb_cfg_address {
	u32 offset:13; /* in dwords */
	u32 length:6; /* in dwords */
	u32 port:6;
	enum tb_cfg_space space:2;
	u32 seq:2; /* sequence number  */
	u32 zero:3;
} __packed;

/* TB_CFG_PKG_READ, response for TB_CFG_PKG_WRITE */
struct cfg_read_pkg {
	struct tb_cfg_header header;
	struct tb_cfg_address addr;
} __packed;

/* TB_CFG_PKG_WRITE, response for TB_CFG_PKG_READ */
struct cfg_write_pkg {
	struct tb_cfg_header header;
	struct tb_cfg_address addr;
	u32 data[64]; /* maximum size, tb_cfg_address.length has 6 bits */
} __packed;

/* TB_CFG_PKG_ERROR */
struct cfg_error_pkg {
	struct tb_cfg_header header;
	enum tb_cfg_error error:4;
	u32 zero1:4;
	u32 port:6;
	u32 zero2:2; /* Both should be zero, still they are different fields. */
	u32 zero3:16;
} __packed;

/* TB_CFG_PKG_EVENT */
struct cfg_event_pkg {
	struct tb_cfg_header header;
	u32 port:6;
	u32 zero:25;
	bool unplug:1;
} __packed;

/* TB_CFG_PKG_RESET */
struct cfg_reset_pkg {
	struct tb_cfg_header header;
} __packed;

/* TB_CFG_PKG_PREPARE_TO_SLEEP */
struct cfg_pts_pkg {
	struct tb_cfg_header header;
	u32 data;
} __packed;

/* ICM messages */

enum icm_pkg_code {
	ICM_GET_TOPOLOGY = 0x1,
	ICM_DRIVER_READY = 0x3,
	ICM_APPROVE_DEVICE = 0x4,
	ICM_CHALLENGE_DEVICE = 0x5,
	ICM_ADD_DEVICE_KEY = 0x6,
	ICM_GET_ROUTE = 0xa,
	ICM_APPROVE_XDOMAIN = 0x10,
	ICM_DISCONNECT_XDOMAIN = 0x11,
	ICM_PREBOOT_ACL = 0x18,
};

enum icm_event_code {
	ICM_EVENT_DEVICE_CONNECTED = 3,
	ICM_EVENT_DEVICE_DISCONNECTED = 4,
	ICM_EVENT_XDOMAIN_CONNECTED = 6,
	ICM_EVENT_XDOMAIN_DISCONNECTED = 7,
};

struct icm_pkg_header {
	u8 code;
	u8 flags;
	u8 packet_id;
	u8 total_packets;
};

#define ICM_FLAGS_ERROR			BIT(0)
#define ICM_FLAGS_NO_KEY		BIT(1)
#define ICM_FLAGS_SLEVEL_SHIFT		3
#define ICM_FLAGS_SLEVEL_MASK		GENMASK(4, 3)
#define ICM_FLAGS_WRITE			BIT(7)

struct icm_pkg_driver_ready {
	struct icm_pkg_header hdr;
};

/* Falcon Ridge only messages */

struct icm_fr_pkg_driver_ready_response {
	struct icm_pkg_header hdr;
	u8 romver;
	u8 ramver;
	u16 security_level;
};

#define ICM_FR_SLEVEL_MASK		0xf

/* Falcon Ridge & Alpine Ridge common messages */

struct icm_fr_pkg_get_topology {
	struct icm_pkg_header hdr;
};

#define ICM_GET_TOPOLOGY_PACKETS	14

struct icm_fr_pkg_get_topology_response {
	struct icm_pkg_header hdr;
	u32 route_lo;
	u32 route_hi;
	u8 first_data;
	u8 second_data;
	u8 drom_i2c_address_index;
	u8 switch_index;
	u32 reserved[2];
	u32 ports[16];
	u32 port_hop_info[16];
};

#define ICM_SWITCH_USED			BIT(0)
#define ICM_SWITCH_UPSTREAM_PORT_MASK	GENMASK(7, 1)
#define ICM_SWITCH_UPSTREAM_PORT_SHIFT	1

#define ICM_PORT_TYPE_MASK		GENMASK(23, 0)
#define ICM_PORT_INDEX_SHIFT		24
#define ICM_PORT_INDEX_MASK		GENMASK(31, 24)

struct icm_fr_event_device_connected {
	struct icm_pkg_header hdr;
	uuid_t ep_uuid;
	u8 connection_key;
	u8 connection_id;
	u16 link_info;
	u32 ep_name[55];
};

#define ICM_LINK_INFO_LINK_MASK		0x7
#define ICM_LINK_INFO_DEPTH_SHIFT	4
#define ICM_LINK_INFO_DEPTH_MASK	GENMASK(7, 4)
#define ICM_LINK_INFO_APPROVED		BIT(8)
#define ICM_LINK_INFO_REJECTED		BIT(9)
#define ICM_LINK_INFO_BOOT		BIT(10)

struct icm_fr_pkg_approve_device {
	struct icm_pkg_header hdr;
	uuid_t ep_uuid;
	u8 connection_key;
	u8 connection_id;
	u16 reserved;
};

struct icm_fr_event_device_disconnected {
	struct icm_pkg_header hdr;
	u16 reserved;
	u16 link_info;
};

struct icm_fr_event_xdomain_connected {
	struct icm_pkg_header hdr;
	u16 reserved;
	u16 link_info;
	uuid_t remote_uuid;
	uuid_t local_uuid;
	u32 local_route_hi;
	u32 local_route_lo;
	u32 remote_route_hi;
	u32 remote_route_lo;
};

struct icm_fr_event_xdomain_disconnected {
	struct icm_pkg_header hdr;
	u16 reserved;
	u16 link_info;
	uuid_t remote_uuid;
};

struct icm_fr_pkg_add_device_key {
	struct icm_pkg_header hdr;
	uuid_t ep_uuid;
	u8 connection_key;
	u8 connection_id;
	u16 reserved;
	u32 key[8];
};

struct icm_fr_pkg_add_device_key_response {
	struct icm_pkg_header hdr;
	uuid_t ep_uuid;
	u8 connection_key;
	u8 connection_id;
	u16 reserved;
};

struct icm_fr_pkg_challenge_device {
	struct icm_pkg_header hdr;
	uuid_t ep_uuid;
	u8 connection_key;
	u8 connection_id;
	u16 reserved;
	u32 challenge[8];
};

struct icm_fr_pkg_challenge_device_response {
	struct icm_pkg_header hdr;
	uuid_t ep_uuid;
	u8 connection_key;
	u8 connection_id;
	u16 reserved;
	u32 challenge[8];
	u32 response[8];
};

struct icm_fr_pkg_approve_xdomain {
	struct icm_pkg_header hdr;
	u16 reserved;
	u16 link_info;
	uuid_t remote_uuid;
	u16 transmit_path;
	u16 transmit_ring;
	u16 receive_path;
	u16 receive_ring;
};

struct icm_fr_pkg_approve_xdomain_response {
	struct icm_pkg_header hdr;
	u16 reserved;
	u16 link_info;
	uuid_t remote_uuid;
	u16 transmit_path;
	u16 transmit_ring;
	u16 receive_path;
	u16 receive_ring;
};

/* Alpine Ridge only messages */

struct icm_ar_pkg_driver_ready_response {
	struct icm_pkg_header hdr;
	u8 romver;
	u8 ramver;
	u16 info;
};

#define ICM_AR_FLAGS_RTD3		BIT(6)

#define ICM_AR_INFO_SLEVEL_MASK		GENMASK(3, 0)
#define ICM_AR_INFO_BOOT_ACL_SHIFT	7
#define ICM_AR_INFO_BOOT_ACL_MASK	GENMASK(11, 7)
#define ICM_AR_INFO_BOOT_ACL_SUPPORTED	BIT(13)

struct icm_ar_pkg_get_route {
	struct icm_pkg_header hdr;
	u16 reserved;
	u16 link_info;
};

struct icm_ar_pkg_get_route_response {
	struct icm_pkg_header hdr;
	u16 reserved;
	u16 link_info;
	u32 route_hi;
	u32 route_lo;
};

struct icm_ar_boot_acl_entry {
	u32 uuid_lo;
	u32 uuid_hi;
};

#define ICM_AR_PREBOOT_ACL_ENTRIES	16

struct icm_ar_pkg_preboot_acl {
	struct icm_pkg_header hdr;
	struct icm_ar_boot_acl_entry acl[ICM_AR_PREBOOT_ACL_ENTRIES];
};

struct icm_ar_pkg_preboot_acl_response {
	struct icm_pkg_header hdr;
	struct icm_ar_boot_acl_entry acl[ICM_AR_PREBOOT_ACL_ENTRIES];
};

/* Titan Ridge messages */

struct icm_tr_pkg_driver_ready_response {
	struct icm_pkg_header hdr;
	u16 reserved1;
	u16 info;
	u32 nvm_version;
	u16 device_id;
	u16 reserved2;
};

#define ICM_TR_FLAGS_RTD3		BIT(6)

#define ICM_TR_INFO_SLEVEL_MASK		GENMASK(2, 0)
#define ICM_TR_INFO_BOOT_ACL_SHIFT	7
#define ICM_TR_INFO_BOOT_ACL_MASK	GENMASK(12, 7)

struct icm_tr_event_device_connected {
	struct icm_pkg_header hdr;
	uuid_t ep_uuid;
	u32 route_hi;
	u32 route_lo;
	u8 connection_id;
	u8 reserved;
	u16 link_info;
	u32 ep_name[55];
};

struct icm_tr_event_device_disconnected {
	struct icm_pkg_header hdr;
	u32 route_hi;
	u32 route_lo;
};

struct icm_tr_event_xdomain_connected {
	struct icm_pkg_header hdr;
	u16 reserved;
	u16 link_info;
	uuid_t remote_uuid;
	uuid_t local_uuid;
	u32 local_route_hi;
	u32 local_route_lo;
	u32 remote_route_hi;
	u32 remote_route_lo;
};

struct icm_tr_event_xdomain_disconnected {
	struct icm_pkg_header hdr;
	u32 route_hi;
	u32 route_lo;
	uuid_t remote_uuid;
};

struct icm_tr_pkg_approve_device {
	struct icm_pkg_header hdr;
	uuid_t ep_uuid;
	u32 route_hi;
	u32 route_lo;
	u8 connection_id;
	u8 reserved1[3];
};

struct icm_tr_pkg_add_device_key {
	struct icm_pkg_header hdr;
	uuid_t ep_uuid;
	u32 route_hi;
	u32 route_lo;
	u8 connection_id;
	u8 reserved[3];
	u32 key[8];
};

struct icm_tr_pkg_challenge_device {
	struct icm_pkg_header hdr;
	uuid_t ep_uuid;
	u32 route_hi;
	u32 route_lo;
	u8 connection_id;
	u8 reserved[3];
	u32 challenge[8];
};

struct icm_tr_pkg_approve_xdomain {
	struct icm_pkg_header hdr;
	u32 route_hi;
	u32 route_lo;
	uuid_t remote_uuid;
	u16 transmit_path;
	u16 transmit_ring;
	u16 receive_path;
	u16 receive_ring;
};

struct icm_tr_pkg_disconnect_xdomain {
	struct icm_pkg_header hdr;
	u8 stage;
	u8 reserved[3];
	u32 route_hi;
	u32 route_lo;
	uuid_t remote_uuid;
};

struct icm_tr_pkg_challenge_device_response {
	struct icm_pkg_header hdr;
	uuid_t ep_uuid;
	u32 route_hi;
	u32 route_lo;
	u8 connection_id;
	u8 reserved[3];
	u32 challenge[8];
	u32 response[8];
};

struct icm_tr_pkg_add_device_key_response {
	struct icm_pkg_header hdr;
	uuid_t ep_uuid;
	u32 route_hi;
	u32 route_lo;
	u8 connection_id;
	u8 reserved[3];
};

struct icm_tr_pkg_approve_xdomain_response {
	struct icm_pkg_header hdr;
	u32 route_hi;
	u32 route_lo;
	uuid_t remote_uuid;
	u16 transmit_path;
	u16 transmit_ring;
	u16 receive_path;
	u16 receive_ring;
};

struct icm_tr_pkg_disconnect_xdomain_response {
	struct icm_pkg_header hdr;
	u8 stage;
	u8 reserved[3];
	u32 route_hi;
	u32 route_lo;
	uuid_t remote_uuid;
};

/* XDomain messages */

struct tb_xdomain_header {
	u32 route_hi;
	u32 route_lo;
	u32 length_sn;
};

#define TB_XDOMAIN_LENGTH_MASK	GENMASK(5, 0)
#define TB_XDOMAIN_SN_MASK	GENMASK(28, 27)
#define TB_XDOMAIN_SN_SHIFT	27

enum tb_xdp_type {
	UUID_REQUEST_OLD = 1,
	UUID_RESPONSE = 2,
	PROPERTIES_REQUEST,
	PROPERTIES_RESPONSE,
	PROPERTIES_CHANGED_REQUEST,
	PROPERTIES_CHANGED_RESPONSE,
	ERROR_RESPONSE,
	UUID_REQUEST = 12,
};

struct tb_xdp_header {
	struct tb_xdomain_header xd_hdr;
	uuid_t uuid;
	u32 type;
};

struct tb_xdp_properties {
	struct tb_xdp_header hdr;
	uuid_t src_uuid;
	uuid_t dst_uuid;
	u16 offset;
	u16 reserved;
};

struct tb_xdp_properties_response {
	struct tb_xdp_header hdr;
	uuid_t src_uuid;
	uuid_t dst_uuid;
	u16 offset;
	u16 data_length;
	u32 generation;
	u32 data[0];
};

/*
 * Max length of data array single XDomain property response is allowed
 * to carry.
 */
#define TB_XDP_PROPERTIES_MAX_DATA_LENGTH	\
	(((256 - 4 - sizeof(struct tb_xdp_properties_response))) / 4)

/* Maximum size of the total property block in dwords we allow */
#define TB_XDP_PROPERTIES_MAX_LENGTH		500

struct tb_xdp_properties_changed {
	struct tb_xdp_header hdr;
	uuid_t src_uuid;
};

struct tb_xdp_properties_changed_response {
	struct tb_xdp_header hdr;
};

enum tb_xdp_error {
	ERROR_SUCCESS,
	ERROR_UNKNOWN_PACKET,
	ERROR_UNKNOWN_DOMAIN,
	ERROR_NOT_SUPPORTED,
	ERROR_NOT_READY,
};

struct tb_xdp_error_response {
	struct tb_xdp_header hdr;
	u32 error;
};

#endif