summaryrefslogtreecommitdiffstats
path: root/drivers/infiniband/hw/hfi1/platform.h
blob: eed0aa9124fa6f922fbd148cbc0d32a59c3e4635 (plain)
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
/*
 * Copyright(c) 2015, 2016 Intel Corporation.
 *
 * This file is provided under a dual BSD/GPLv2 license.  When using or
 * redistributing this file, you may do so under either license.
 *
 * GPL LICENSE SUMMARY
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of version 2 of the GNU General Public License as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * BSD LICENSE
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *  - Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *  - Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *  - Neither the name of Intel Corporation nor the names of its
 *    contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 */
#ifndef __PLATFORM_H
#define __PLATFORM_H

#define METADATA_TABLE_FIELD_START_SHIFT		0
#define METADATA_TABLE_FIELD_START_LEN_BITS		15
#define METADATA_TABLE_FIELD_LEN_SHIFT			16
#define METADATA_TABLE_FIELD_LEN_LEN_BITS		16

/* Header structure */
#define PLATFORM_CONFIG_HEADER_RECORD_IDX_SHIFT			0
#define PLATFORM_CONFIG_HEADER_RECORD_IDX_LEN_BITS		6
#define PLATFORM_CONFIG_HEADER_TABLE_LENGTH_SHIFT		16
#define PLATFORM_CONFIG_HEADER_TABLE_LENGTH_LEN_BITS		12
#define PLATFORM_CONFIG_HEADER_TABLE_TYPE_SHIFT			28
#define PLATFORM_CONFIG_HEADER_TABLE_TYPE_LEN_BITS		4

enum platform_config_table_type_encoding {
	PLATFORM_CONFIG_TABLE_RESERVED,
	PLATFORM_CONFIG_SYSTEM_TABLE,
	PLATFORM_CONFIG_PORT_TABLE,
	PLATFORM_CONFIG_RX_PRESET_TABLE,
	PLATFORM_CONFIG_TX_PRESET_TABLE,
	PLATFORM_CONFIG_QSFP_ATTEN_TABLE,
	PLATFORM_CONFIG_VARIABLE_SETTINGS_TABLE,
	PLATFORM_CONFIG_TABLE_MAX
};

enum platform_config_system_table_fields {
	SYSTEM_TABLE_RESERVED,
	SYSTEM_TABLE_NODE_STRING,
	SYSTEM_TABLE_SYSTEM_IMAGE_GUID,
	SYSTEM_TABLE_NODE_GUID,
	SYSTEM_TABLE_REVISION,
	SYSTEM_TABLE_VENDOR_OUI,
	SYSTEM_TABLE_META_VERSION,
	SYSTEM_TABLE_DEVICE_ID,
	SYSTEM_TABLE_PARTITION_ENFORCEMENT_CAP,
	SYSTEM_TABLE_QSFP_POWER_CLASS_MAX,
	SYSTEM_TABLE_QSFP_ATTENUATION_DEFAULT_12G,
	SYSTEM_TABLE_QSFP_ATTENUATION_DEFAULT_25G,
	SYSTEM_TABLE_VARIABLE_TABLE_ENTRIES_PER_PORT,
	SYSTEM_TABLE_MAX
};

enum platform_config_port_table_fields {
	PORT_TABLE_RESERVED,
	PORT_TABLE_PORT_TYPE,
	PORT_TABLE_LOCAL_ATTEN_12G,
	PORT_TABLE_LOCAL_ATTEN_25G,
	PORT_TABLE_LINK_SPEED_SUPPORTED,
	PORT_TABLE_LINK_WIDTH_SUPPORTED,
	PORT_TABLE_AUTO_LANE_SHEDDING_ENABLED,
	PORT_TABLE_EXTERNAL_LOOPBACK_ALLOWED,
	PORT_TABLE_VL_CAP,
	PORT_TABLE_MTU_CAP,
	PORT_TABLE_TX_LANE_ENABLE_MASK,
	PORT_TABLE_LOCAL_MAX_TIMEOUT,
	PORT_TABLE_REMOTE_ATTEN_12G,
	PORT_TABLE_REMOTE_ATTEN_25G,
	PORT_TABLE_TX_PRESET_IDX_ACTIVE_NO_EQ,
	PORT_TABLE_TX_PRESET_IDX_ACTIVE_EQ,
	PORT_TABLE_RX_PRESET_IDX,
	PORT_TABLE_CABLE_REACH_CLASS,
	PORT_TABLE_MAX
};

enum platform_config_rx_preset_table_fields {
	RX_PRESET_TABLE_RESERVED,
	RX_PRESET_TABLE_QSFP_RX_CDR_APPLY,
	RX_PRESET_TABLE_QSFP_RX_EMP_APPLY,
	RX_PRESET_TABLE_QSFP_RX_AMP_APPLY,
	RX_PRESET_TABLE_QSFP_RX_CDR,
	RX_PRESET_TABLE_QSFP_RX_EMP,
	RX_PRESET_TABLE_QSFP_RX_AMP,
	RX_PRESET_TABLE_MAX
};

enum platform_config_tx_preset_table_fields {
	TX_PRESET_TABLE_RESERVED,
	TX_PRESET_TABLE_PRECUR,
	TX_PRESET_TABLE_ATTN,
	TX_PRESET_TABLE_POSTCUR,
	TX_PRESET_TABLE_QSFP_TX_CDR_APPLY,
	TX_PRESET_TABLE_QSFP_TX_EQ_APPLY,
	TX_PRESET_TABLE_QSFP_TX_CDR,
	TX_PRESET_TABLE_QSFP_TX_EQ,
	TX_PRESET_TABLE_MAX
};

enum platform_config_qsfp_attn_table_fields {
	QSFP_ATTEN_TABLE_RESERVED,
	QSFP_ATTEN_TABLE_TX_PRESET_IDX,
	QSFP_ATTEN_TABLE_RX_PRESET_IDX,
	QSFP_ATTEN_TABLE_MAX
};

enum platform_config_variable_settings_table_fields {
	VARIABLE_SETTINGS_TABLE_RESERVED,
	VARIABLE_SETTINGS_TABLE_TX_PRESET_IDX,
	VARIABLE_SETTINGS_TABLE_RX_PRESET_IDX,
	VARIABLE_SETTINGS_TABLE_MAX
};

struct platform_config {
	size_t size;
	const u8 *data;
};

struct platform_config_data {
	u32 *table;
	u32 *table_metadata;
	u32 num_table;
};

/*
 * This struct acts as a quick reference into the platform_data binary image
 * and is populated by parse_platform_config(...) depending on the specific
 * META_VERSION
 */
struct platform_config_cache {
	u8  cache_valid;
	struct platform_config_data config_tables[PLATFORM_CONFIG_TABLE_MAX];
};

/* This section defines default values and encodings for the
 * fields defined for each table above
 */

/*
 * =====================================================
 *  System table encodings
 * =====================================================
 */
#define PLATFORM_CONFIG_MAGIC_NUM		0x3d4f5041
#define PLATFORM_CONFIG_MAGIC_NUMBER_LEN	4

/*
 * These power classes are the same as defined in SFF 8636 spec rev 2.4
 * describing byte 129 in table 6-16, except enumerated in a different order
 */
enum platform_config_qsfp_power_class_encoding {
	QSFP_POWER_CLASS_1 = 1,
	QSFP_POWER_CLASS_2,
	QSFP_POWER_CLASS_3,
	QSFP_POWER_CLASS_4,
	QSFP_POWER_CLASS_5,
	QSFP_POWER_CLASS_6,
	QSFP_POWER_CLASS_7
};

/*
 * ====================================================
 *  Port table encodings
 * ====================================================
 */
enum platform_config_port_type_encoding {
	PORT_TYPE_UNKNOWN,
	PORT_TYPE_DISCONNECTED,
	PORT_TYPE_FIXED,
	PORT_TYPE_VARIABLE,
	PORT_TYPE_QSFP,
	PORT_TYPE_MAX
};

enum platform_config_link_speed_supported_encoding {
	LINK_SPEED_SUPP_12G = 1,
	LINK_SPEED_SUPP_25G,
	LINK_SPEED_SUPP_12G_25G,
	LINK_SPEED_SUPP_MAX
};

/*
 * This is a subset (not strict) of the link downgrades
 * supported. The link downgrades supported are expected
 * to be supplied to the driver by another entity such as
 * the fabric manager
 */
enum platform_config_link_width_supported_encoding {
	LINK_WIDTH_SUPP_1X = 1,
	LINK_WIDTH_SUPP_2X,
	LINK_WIDTH_SUPP_2X_1X,
	LINK_WIDTH_SUPP_3X,
	LINK_WIDTH_SUPP_3X_1X,
	LINK_WIDTH_SUPP_3X_2X,
	LINK_WIDTH_SUPP_3X_2X_1X,
	LINK_WIDTH_SUPP_4X,
	LINK_WIDTH_SUPP_4X_1X,
	LINK_WIDTH_SUPP_4X_2X,
	LINK_WIDTH_SUPP_4X_2X_1X,
	LINK_WIDTH_SUPP_4X_3X,
	LINK_WIDTH_SUPP_4X_3X_1X,
	LINK_WIDTH_SUPP_4X_3X_2X,
	LINK_WIDTH_SUPP_4X_3X_2X_1X,
	LINK_WIDTH_SUPP_MAX
};

enum platform_config_virtual_lane_capability_encoding {
	VL_CAP_VL0 = 1,
	VL_CAP_VL0_1,
	VL_CAP_VL0_2,
	VL_CAP_VL0_3,
	VL_CAP_VL0_4,
	VL_CAP_VL0_5,
	VL_CAP_VL0_6,
	VL_CAP_VL0_7,
	VL_CAP_VL0_8,
	VL_CAP_VL0_9,
	VL_CAP_VL0_10,
	VL_CAP_VL0_11,
	VL_CAP_VL0_12,
	VL_CAP_VL0_13,
	VL_CAP_VL0_14,
	VL_CAP_MAX
};

/* Max MTU */
enum platform_config_mtu_capability_encoding {
	MTU_CAP_256   = 1,
	MTU_CAP_512   = 2,
	MTU_CAP_1024  = 3,
	MTU_CAP_2048  = 4,
	MTU_CAP_4096  = 5,
	MTU_CAP_8192  = 6,
	MTU_CAP_10240 = 7
};

enum platform_config_local_max_timeout_encoding {
	LOCAL_MAX_TIMEOUT_10_MS = 1,
	LOCAL_MAX_TIMEOUT_100_MS,
	LOCAL_MAX_TIMEOUT_1_S,
	LOCAL_MAX_TIMEOUT_10_S,
	LOCAL_MAX_TIMEOUT_100_S,
	LOCAL_MAX_TIMEOUT_1000_S
};

enum link_tuning_encoding {
	OPA_PASSIVE_TUNING,
	OPA_ACTIVE_TUNING,
	OPA_UNKNOWN_TUNING
};

/*
 * Shifts and masks for the link SI tuning values stuffed into the ASIC scratch
 * registers for integrated platforms
 */
#define PORT0_PORT_TYPE_SHIFT		0
#define PORT0_LOCAL_ATTEN_SHIFT		4
#define PORT0_REMOTE_ATTEN_SHIFT	10
#define PORT0_DEFAULT_ATTEN_SHIFT	32

#define PORT1_PORT_TYPE_SHIFT		16
#define PORT1_LOCAL_ATTEN_SHIFT		20
#define PORT1_REMOTE_ATTEN_SHIFT	26
#define PORT1_DEFAULT_ATTEN_SHIFT	40

#define PORT0_PORT_TYPE_MASK		0xFUL
#define PORT0_LOCAL_ATTEN_MASK		0x3FUL
#define PORT0_REMOTE_ATTEN_MASK		0x3FUL
#define PORT0_DEFAULT_ATTEN_MASK	0xFFUL

#define PORT1_PORT_TYPE_MASK		0xFUL
#define PORT1_LOCAL_ATTEN_MASK		0x3FUL
#define PORT1_REMOTE_ATTEN_MASK		0x3FUL
#define PORT1_DEFAULT_ATTEN_MASK	0xFFUL

#define PORT0_PORT_TYPE_SMASK		(PORT0_PORT_TYPE_MASK << \
					 PORT0_PORT_TYPE_SHIFT)
#define PORT0_LOCAL_ATTEN_SMASK		(PORT0_LOCAL_ATTEN_MASK << \
					 PORT0_LOCAL_ATTEN_SHIFT)
#define PORT0_REMOTE_ATTEN_SMASK	(PORT0_REMOTE_ATTEN_MASK << \
					 PORT0_REMOTE_ATTEN_SHIFT)
#define PORT0_DEFAULT_ATTEN_SMASK	(PORT0_DEFAULT_ATTEN_MASK << \
					 PORT0_DEFAULT_ATTEN_SHIFT)

#define PORT1_PORT_TYPE_SMASK		(PORT1_PORT_TYPE_MASK << \
					 PORT1_PORT_TYPE_SHIFT)
#define PORT1_LOCAL_ATTEN_SMASK		(PORT1_LOCAL_ATTEN_MASK << \
					 PORT1_LOCAL_ATTEN_SHIFT)
#define PORT1_REMOTE_ATTEN_SMASK	(PORT1_REMOTE_ATTEN_MASK << \
					 PORT1_REMOTE_ATTEN_SHIFT)
#define PORT1_DEFAULT_ATTEN_SMASK	(PORT1_DEFAULT_ATTEN_MASK << \
					 PORT1_DEFAULT_ATTEN_SHIFT)

#define QSFP_MAX_POWER_SHIFT		0
#define TX_NO_EQ_SHIFT			4
#define TX_EQ_SHIFT			25
#define RX_SHIFT			46

#define QSFP_MAX_POWER_MASK		0xFUL
#define TX_NO_EQ_MASK			0x1FFFFFUL
#define TX_EQ_MASK			0x1FFFFFUL
#define RX_MASK				0xFFFFUL

#define QSFP_MAX_POWER_SMASK		(QSFP_MAX_POWER_MASK << \
					 QSFP_MAX_POWER_SHIFT)
#define TX_NO_EQ_SMASK			(TX_NO_EQ_MASK << TX_NO_EQ_SHIFT)
#define TX_EQ_SMASK			(TX_EQ_MASK << TX_EQ_SHIFT)
#define RX_SMASK			(RX_MASK << RX_SHIFT)

#define TX_PRECUR_SHIFT			0
#define TX_ATTN_SHIFT			4
#define QSFP_TX_CDR_APPLY_SHIFT		9
#define QSFP_TX_EQ_APPLY_SHIFT		10
#define QSFP_TX_CDR_SHIFT		11
#define QSFP_TX_EQ_SHIFT		12
#define TX_POSTCUR_SHIFT		16

#define TX_PRECUR_MASK			0xFUL
#define TX_ATTN_MASK			0x1FUL
#define QSFP_TX_CDR_APPLY_MASK		0x1UL
#define QSFP_TX_EQ_APPLY_MASK		0x1UL
#define QSFP_TX_CDR_MASK		0x1UL
#define QSFP_TX_EQ_MASK			0xFUL
#define TX_POSTCUR_MASK			0x1FUL

#define TX_PRECUR_SMASK			(TX_PRECUR_MASK << TX_PRECUR_SHIFT)
#define TX_ATTN_SMASK			(TX_ATTN_MASK << TX_ATTN_SHIFT)
#define QSFP_TX_CDR_APPLY_SMASK		(QSFP_TX_CDR_APPLY_MASK << \
					 QSFP_TX_CDR_APPLY_SHIFT)
#define QSFP_TX_EQ_APPLY_SMASK		(QSFP_TX_EQ_APPLY_MASK << \
					 QSFP_TX_EQ_APPLY_SHIFT)
#define QSFP_TX_CDR_SMASK		(QSFP_TX_CDR_MASK << QSFP_TX_CDR_SHIFT)
#define QSFP_TX_EQ_SMASK		(QSFP_TX_EQ_MASK << QSFP_TX_EQ_SHIFT)
#define TX_POSTCUR_SMASK		(TX_POSTCUR_MASK << TX_POSTCUR_SHIFT)

#define QSFP_RX_CDR_APPLY_SHIFT		0
#define QSFP_RX_EMP_APPLY_SHIFT		1
#define QSFP_RX_AMP_APPLY_SHIFT		2
#define QSFP_RX_CDR_SHIFT		3
#define QSFP_RX_EMP_SHIFT		4
#define QSFP_RX_AMP_SHIFT		8

#define QSFP_RX_CDR_APPLY_MASK		0x1UL
#define QSFP_RX_EMP_APPLY_MASK		0x1UL
#define QSFP_RX_AMP_APPLY_MASK		0x1UL
#define QSFP_RX_CDR_MASK		0x1UL
#define QSFP_RX_EMP_MASK		0xFUL
#define QSFP_RX_AMP_MASK		0x3UL

#define QSFP_RX_CDR_APPLY_SMASK		(QSFP_RX_CDR_APPLY_MASK << \
					 QSFP_RX_CDR_APPLY_SHIFT)
#define QSFP_RX_EMP_APPLY_SMASK		(QSFP_RX_EMP_APPLY_MASK << \
					 QSFP_RX_EMP_APPLY_SHIFT)
#define QSFP_RX_AMP_APPLY_SMASK		(QSFP_RX_AMP_APPLY_MASK << \
					 QSFP_RX_AMP_APPLY_SHIFT)
#define QSFP_RX_CDR_SMASK		(QSFP_RX_CDR_MASK << QSFP_RX_CDR_SHIFT)
#define QSFP_RX_EMP_SMASK		(QSFP_RX_EMP_MASK << QSFP_RX_EMP_SHIFT)
#define QSFP_RX_AMP_SMASK		(QSFP_RX_AMP_MASK << QSFP_RX_AMP_SHIFT)

#define BITMAP_VERSION			1
#define BITMAP_VERSION_SHIFT		44
#define BITMAP_VERSION_MASK		0xFUL
#define BITMAP_VERSION_SMASK		(BITMAP_VERSION_MASK << \
					 BITMAP_VERSION_SHIFT)
#define CHECKSUM_SHIFT			48
#define CHECKSUM_MASK			0xFFFFUL
#define CHECKSUM_SMASK			(CHECKSUM_MASK << CHECKSUM_SHIFT)

/* platform.c */
void get_platform_config(struct hfi1_devdata *dd);
void free_platform_config(struct hfi1_devdata *dd);
void get_port_type(struct hfi1_pportdata *ppd);
int set_qsfp_tx(struct hfi1_pportdata *ppd, int on);
void tune_serdes(struct hfi1_pportdata *ppd);

#endif			/*__PLATFORM_H*/