summaryrefslogtreecommitdiffstats
path: root/include/linux/qed/eth_common.h
blob: b5ebc697d05f28c7cca61335c3d5faec54189c45 (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
/* QLogic qed NIC Driver
 * Copyright (c) 2015 QLogic Corporation
 *
 * This software is available under the terms of the GNU General Public License
 * (GPL) Version 2, available from the file COPYING in the main directory of
 * this source tree.
 */

#ifndef __ETH_COMMON__
#define __ETH_COMMON__

/********************/
/* ETH FW CONSTANTS */
/********************/
#define ETH_HSI_VER_MAJOR                   3
#define ETH_HSI_VER_MINOR                   0
#define ETH_CACHE_LINE_SIZE                 64

#define ETH_MAX_RAMROD_PER_CON                          8
#define ETH_TX_BD_PAGE_SIZE_BYTES                       4096
#define ETH_RX_BD_PAGE_SIZE_BYTES                       4096
#define ETH_RX_CQE_PAGE_SIZE_BYTES                      4096
#define ETH_RX_NUM_NEXT_PAGE_BDS                        2

#define ETH_TX_MIN_BDS_PER_NON_LSO_PKT                          1
#define ETH_TX_MAX_BDS_PER_NON_LSO_PACKET                       18
#define ETH_TX_MAX_LSO_HDR_NBD                                          4
#define ETH_TX_MIN_BDS_PER_LSO_PKT                                      3
#define ETH_TX_MIN_BDS_PER_TUNN_IPV6_WITH_EXT_PKT       3
#define ETH_TX_MIN_BDS_PER_IPV6_WITH_EXT_PKT            2
#define ETH_TX_MIN_BDS_PER_PKT_W_LOOPBACK_MODE          2
#define ETH_TX_MAX_NON_LSO_PKT_LEN                  (9700 - (4 + 12 + 8))
#define ETH_TX_MAX_LSO_HDR_BYTES                    510

#define ETH_NUM_STATISTIC_COUNTERS                      MAX_NUM_VPORTS

/* Maximum number of buffers, used for RX packet placement */
#define ETH_RX_MAX_BUFF_PER_PKT             5

/* num of MAC/VLAN filters */
#define ETH_NUM_MAC_FILTERS                                     512
#define ETH_NUM_VLAN_FILTERS                            512

/* approx. multicast constants */
#define ETH_MULTICAST_BIN_FROM_MAC_SEED     0
#define ETH_MULTICAST_MAC_BINS                          256
#define ETH_MULTICAST_MAC_BINS_IN_REGS          (ETH_MULTICAST_MAC_BINS / 32)

/*  ethernet vport update constants */
#define ETH_FILTER_RULES_COUNT                          10
#define ETH_RSS_IND_TABLE_ENTRIES_NUM           128
#define ETH_RSS_KEY_SIZE_REGS                       10
#define ETH_RSS_ENGINE_NUM_K2               207
#define ETH_RSS_ENGINE_NUM_BB               127

/* TPA constants */
#define ETH_TPA_MAX_AGGS_NUM              64
#define ETH_TPA_CQE_START_LEN_LIST_SIZE   ETH_RX_MAX_BUFF_PER_PKT
#define ETH_TPA_CQE_CONT_LEN_LIST_SIZE    6
#define ETH_TPA_CQE_END_LEN_LIST_SIZE     4


struct eth_tx_1st_bd_flags {
	u8 bitfields;
#define ETH_TX_1ST_BD_FLAGS_START_BD_MASK         0x1
#define ETH_TX_1ST_BD_FLAGS_START_BD_SHIFT        0
#define ETH_TX_1ST_BD_FLAGS_FORCE_VLAN_MODE_MASK  0x1
#define ETH_TX_1ST_BD_FLAGS_FORCE_VLAN_MODE_SHIFT 1
#define ETH_TX_1ST_BD_FLAGS_IP_CSUM_MASK          0x1
#define ETH_TX_1ST_BD_FLAGS_IP_CSUM_SHIFT         2
#define ETH_TX_1ST_BD_FLAGS_L4_CSUM_MASK          0x1
#define ETH_TX_1ST_BD_FLAGS_L4_CSUM_SHIFT         3
#define ETH_TX_1ST_BD_FLAGS_VLAN_INSERTION_MASK   0x1
#define ETH_TX_1ST_BD_FLAGS_VLAN_INSERTION_SHIFT  4
#define ETH_TX_1ST_BD_FLAGS_LSO_MASK              0x1
#define ETH_TX_1ST_BD_FLAGS_LSO_SHIFT             5
#define ETH_TX_1ST_BD_FLAGS_TUNN_IP_CSUM_MASK     0x1
#define ETH_TX_1ST_BD_FLAGS_TUNN_IP_CSUM_SHIFT    6
#define ETH_TX_1ST_BD_FLAGS_TUNN_L4_CSUM_MASK     0x1
#define ETH_TX_1ST_BD_FLAGS_TUNN_L4_CSUM_SHIFT    7
};

/* The parsing information data fo rthe first tx bd of a given packet. */
struct eth_tx_data_1st_bd {
	__le16				vlan;
	u8				nbds;
	struct eth_tx_1st_bd_flags	bd_flags;
	__le16				bitfields;
#define ETH_TX_DATA_1ST_BD_TUNN_FLAG_MASK  0x1
#define ETH_TX_DATA_1ST_BD_TUNN_FLAG_SHIFT 0
#define ETH_TX_DATA_1ST_BD_RESERVED0_MASK          0x1
#define ETH_TX_DATA_1ST_BD_RESERVED0_SHIFT         1
#define ETH_TX_DATA_1ST_BD_PKT_LEN_MASK    0x3FFF
#define ETH_TX_DATA_1ST_BD_PKT_LEN_SHIFT   2
};

/* The parsing information data for the second tx bd of a given packet. */
struct eth_tx_data_2nd_bd {
	__le16	tunn_ip_size;
	__le16	bitfields1;
#define ETH_TX_DATA_2ND_BD_TUNN_INNER_L2_HDR_SIZE_W_MASK  0xF
#define ETH_TX_DATA_2ND_BD_TUNN_INNER_L2_HDR_SIZE_W_SHIFT 0
#define ETH_TX_DATA_2ND_BD_TUNN_INNER_ETH_TYPE_MASK       0x3
#define ETH_TX_DATA_2ND_BD_TUNN_INNER_ETH_TYPE_SHIFT      4
#define ETH_TX_DATA_2ND_BD_DEST_PORT_MODE_MASK            0x3
#define ETH_TX_DATA_2ND_BD_DEST_PORT_MODE_SHIFT           6
#define ETH_TX_DATA_2ND_BD_START_BD_MASK                  0x1
#define ETH_TX_DATA_2ND_BD_START_BD_SHIFT                 8
#define ETH_TX_DATA_2ND_BD_TUNN_TYPE_MASK                 0x3
#define ETH_TX_DATA_2ND_BD_TUNN_TYPE_SHIFT                9
#define ETH_TX_DATA_2ND_BD_TUNN_INNER_IPV6_MASK           0x1
#define ETH_TX_DATA_2ND_BD_TUNN_INNER_IPV6_SHIFT          11
#define ETH_TX_DATA_2ND_BD_IPV6_EXT_MASK                  0x1
#define ETH_TX_DATA_2ND_BD_IPV6_EXT_SHIFT                 12
#define ETH_TX_DATA_2ND_BD_TUNN_IPV6_EXT_MASK             0x1
#define ETH_TX_DATA_2ND_BD_TUNN_IPV6_EXT_SHIFT            13
#define ETH_TX_DATA_2ND_BD_L4_UDP_MASK                    0x1
#define ETH_TX_DATA_2ND_BD_L4_UDP_SHIFT                   14
#define ETH_TX_DATA_2ND_BD_L4_PSEUDO_CSUM_MODE_MASK       0x1
#define ETH_TX_DATA_2ND_BD_L4_PSEUDO_CSUM_MODE_SHIFT      15
	__le16 bitfields2;
#define ETH_TX_DATA_2ND_BD_L4_HDR_START_OFFSET_W_MASK     0x1FFF
#define ETH_TX_DATA_2ND_BD_L4_HDR_START_OFFSET_W_SHIFT    0
#define ETH_TX_DATA_2ND_BD_RESERVED0_MASK                 0x7
#define ETH_TX_DATA_2ND_BD_RESERVED0_SHIFT                13
};

struct eth_fast_path_cqe_fw_debug {
	u8 reserved0;
	u8 reserved1;
	__le16 reserved2;
};

/*  tunneling parsing flags */
struct eth_tunnel_parsing_flags {
	u8 flags;
#define	ETH_TUNNEL_PARSING_FLAGS_TYPE_MASK		0x3
#define	ETH_TUNNEL_PARSING_FLAGS_TYPE_SHIFT		0
#define	ETH_TUNNEL_PARSING_FLAGS_TENNANT_ID_EXIST_MASK	0x1
#define	ETH_TUNNEL_PARSING_FLAGS_TENNANT_ID_EXIST_SHIFT	2
#define	ETH_TUNNEL_PARSING_FLAGS_NEXT_PROTOCOL_MASK	0x3
#define	ETH_TUNNEL_PARSING_FLAGS_NEXT_PROTOCOL_SHIFT	3
#define	ETH_TUNNEL_PARSING_FLAGS_FIRSTHDRIPMATCH_MASK	0x1
#define	ETH_TUNNEL_PARSING_FLAGS_FIRSTHDRIPMATCH_SHIFT	5
#define	ETH_TUNNEL_PARSING_FLAGS_IPV4_FRAGMENT_MASK	0x1
#define	ETH_TUNNEL_PARSING_FLAGS_IPV4_FRAGMENT_SHIFT	6
#define	ETH_TUNNEL_PARSING_FLAGS_IPV4_OPTIONS_MASK	0x1
#define	ETH_TUNNEL_PARSING_FLAGS_IPV4_OPTIONS_SHIFT	7
};

/* Regular ETH Rx FP CQE. */
struct eth_fast_path_rx_reg_cqe {
	u8 type;
	u8 bitfields;
#define ETH_FAST_PATH_RX_REG_CQE_RSS_HASH_TYPE_MASK  0x7
#define ETH_FAST_PATH_RX_REG_CQE_RSS_HASH_TYPE_SHIFT 0
#define ETH_FAST_PATH_RX_REG_CQE_TC_MASK             0xF
#define ETH_FAST_PATH_RX_REG_CQE_TC_SHIFT            3
#define ETH_FAST_PATH_RX_REG_CQE_RESERVED0_MASK      0x1
#define ETH_FAST_PATH_RX_REG_CQE_RESERVED0_SHIFT     7
	__le16 pkt_len;
	struct parsing_and_err_flags pars_flags;
	__le16 vlan_tag;
	__le32 rss_hash;
	__le16 len_on_first_bd;
	u8 placement_offset;
	struct eth_tunnel_parsing_flags tunnel_pars_flags;
	u8 bd_num;
	u8 reserved[7];
	struct eth_fast_path_cqe_fw_debug fw_debug;
	u8 reserved1[3];
	u8 flags;
#define ETH_FAST_PATH_RX_REG_CQE_VALID_MASK          0x1
#define ETH_FAST_PATH_RX_REG_CQE_VALID_SHIFT         0
#define ETH_FAST_PATH_RX_REG_CQE_VALID_TOGGLE_MASK   0x1
#define ETH_FAST_PATH_RX_REG_CQE_VALID_TOGGLE_SHIFT  1
#define ETH_FAST_PATH_RX_REG_CQE_RESERVED2_MASK      0x3F
#define ETH_FAST_PATH_RX_REG_CQE_RESERVED2_SHIFT     2
};

/* TPA-continue ETH Rx FP CQE. */
struct eth_fast_path_rx_tpa_cont_cqe {
	u8	type;
	u8	tpa_agg_index;
	__le16	len_list[ETH_TPA_CQE_CONT_LEN_LIST_SIZE];
	u8	reserved[5];
	u8	reserved1;
	__le16	reserved2[ETH_TPA_CQE_CONT_LEN_LIST_SIZE];
};

/* TPA-end ETH Rx FP CQE. */
struct eth_fast_path_rx_tpa_end_cqe {
	u8	type;
	u8	tpa_agg_index;
	__le16	total_packet_len;
	u8	num_of_bds;
	u8	end_reason;
	__le16	num_of_coalesced_segs;
	__le32	ts_delta;
	__le16	len_list[ETH_TPA_CQE_END_LEN_LIST_SIZE];
	u8	reserved1[3];
	u8	reserved2;
	__le16	reserved3[ETH_TPA_CQE_END_LEN_LIST_SIZE];
};

/* TPA-start ETH Rx FP CQE. */
struct eth_fast_path_rx_tpa_start_cqe {
	u8	type;
	u8	bitfields;
#define ETH_FAST_PATH_RX_TPA_START_CQE_RSS_HASH_TYPE_MASK  0x7
#define ETH_FAST_PATH_RX_TPA_START_CQE_RSS_HASH_TYPE_SHIFT 0
#define ETH_FAST_PATH_RX_TPA_START_CQE_TC_MASK             0xF
#define ETH_FAST_PATH_RX_TPA_START_CQE_TC_SHIFT            3
#define ETH_FAST_PATH_RX_TPA_START_CQE_RESERVED0_MASK      0x1
#define ETH_FAST_PATH_RX_TPA_START_CQE_RESERVED0_SHIFT     7
	__le16	seg_len;
	struct parsing_and_err_flags pars_flags;
	__le16	vlan_tag;
	__le32	rss_hash;
	__le16	len_on_first_bd;
	u8	placement_offset;
	struct eth_tunnel_parsing_flags tunnel_pars_flags;
	u8	tpa_agg_index;
	u8	header_len;
	__le16	ext_bd_len_list[ETH_TPA_CQE_START_LEN_LIST_SIZE];
	struct eth_fast_path_cqe_fw_debug fw_debug;
};

/* The L4 pseudo checksum mode for Ethernet */
enum eth_l4_pseudo_checksum_mode {
	ETH_L4_PSEUDO_CSUM_CORRECT_LENGTH,
	ETH_L4_PSEUDO_CSUM_ZERO_LENGTH,
	MAX_ETH_L4_PSEUDO_CHECKSUM_MODE
};

struct eth_rx_bd {
	struct regpair addr;
};

/* regular ETH Rx SP CQE */
struct eth_slow_path_rx_cqe {
	u8	type;
	u8	ramrod_cmd_id;
	u8	error_flag;
	u8	reserved[25];
	__le16	echo;
	u8	reserved1;
	u8	flags;
/* for PMD mode - valid indication */
#define ETH_SLOW_PATH_RX_CQE_VALID_MASK         0x1
#define ETH_SLOW_PATH_RX_CQE_VALID_SHIFT        0
/* for PMD mode - valid toggle indication */
#define ETH_SLOW_PATH_RX_CQE_VALID_TOGGLE_MASK  0x1
#define ETH_SLOW_PATH_RX_CQE_VALID_TOGGLE_SHIFT 1
#define ETH_SLOW_PATH_RX_CQE_RESERVED2_MASK     0x3F
#define ETH_SLOW_PATH_RX_CQE_RESERVED2_SHIFT    2
};

/* union for all ETH Rx CQE types */
union eth_rx_cqe {
	struct eth_fast_path_rx_reg_cqe		fast_path_regular;
	struct eth_fast_path_rx_tpa_start_cqe	fast_path_tpa_start;
	struct eth_fast_path_rx_tpa_cont_cqe	fast_path_tpa_cont;
	struct eth_fast_path_rx_tpa_end_cqe	fast_path_tpa_end;
	struct eth_slow_path_rx_cqe		slow_path;
};

/* ETH Rx CQE type */
enum eth_rx_cqe_type {
	ETH_RX_CQE_TYPE_UNUSED,
	ETH_RX_CQE_TYPE_REGULAR,
	ETH_RX_CQE_TYPE_SLOW_PATH,
	ETH_RX_CQE_TYPE_TPA_START,
	ETH_RX_CQE_TYPE_TPA_CONT,
	ETH_RX_CQE_TYPE_TPA_END,
	MAX_ETH_RX_CQE_TYPE
};

enum eth_rx_tunn_type {
	ETH_RX_NO_TUNN,
	ETH_RX_TUNN_GENEVE,
	ETH_RX_TUNN_GRE,
	ETH_RX_TUNN_VXLAN,
	MAX_ETH_RX_TUNN_TYPE
};

/*  Aggregation end reason. */
enum eth_tpa_end_reason {
	ETH_AGG_END_UNUSED,
	ETH_AGG_END_SP_UPDATE,
	ETH_AGG_END_MAX_LEN,
	ETH_AGG_END_LAST_SEG,
	ETH_AGG_END_TIMEOUT,
	ETH_AGG_END_NOT_CONSISTENT,
	ETH_AGG_END_OUT_OF_ORDER,
	ETH_AGG_END_NON_TPA_SEG,
	MAX_ETH_TPA_END_REASON
};

/* The first tx bd of a given packet */
struct eth_tx_1st_bd {
	struct regpair			addr;
	__le16				nbytes;
	struct eth_tx_data_1st_bd	data;
};

/* The second tx bd of a given packet */
struct eth_tx_2nd_bd {
	struct regpair			addr;
	__le16				nbytes;
	struct eth_tx_data_2nd_bd	data;
};

/* The parsing information data for the third tx bd of a given packet. */
struct eth_tx_data_3rd_bd {
	__le16	lso_mss;
	__le16	bitfields;
#define ETH_TX_DATA_3RD_BD_TCP_HDR_LEN_DW_MASK  0xF
#define ETH_TX_DATA_3RD_BD_TCP_HDR_LEN_DW_SHIFT 0
#define ETH_TX_DATA_3RD_BD_HDR_NBD_MASK         0xF
#define ETH_TX_DATA_3RD_BD_HDR_NBD_SHIFT        4
#define ETH_TX_DATA_3RD_BD_START_BD_MASK        0x1
#define ETH_TX_DATA_3RD_BD_START_BD_SHIFT       8
#define ETH_TX_DATA_3RD_BD_RESERVED0_MASK       0x7F
#define ETH_TX_DATA_3RD_BD_RESERVED0_SHIFT      9
	u8	tunn_l4_hdr_start_offset_w;
	u8	tunn_hdr_size_w;
};

/* The third tx bd of a given packet */
struct eth_tx_3rd_bd {
	struct regpair			addr;
	__le16				nbytes;
	struct eth_tx_data_3rd_bd	data;
};

/* Complementary information for the regular tx bd of a given packet. */
struct eth_tx_data_bd {
	__le16	reserved0;
	__le16	bitfields;
#define ETH_TX_DATA_BD_RESERVED1_MASK  0xFF
#define ETH_TX_DATA_BD_RESERVED1_SHIFT 0
#define ETH_TX_DATA_BD_START_BD_MASK   0x1
#define ETH_TX_DATA_BD_START_BD_SHIFT  8
#define ETH_TX_DATA_BD_RESERVED2_MASK  0x7F
#define ETH_TX_DATA_BD_RESERVED2_SHIFT 9
	__le16 reserved3;
};

/* The common non-special TX BD ring element */
struct eth_tx_bd {
	struct regpair	addr;
	__le16		nbytes;
	struct eth_tx_data_bd	data;
};

union eth_tx_bd_types {
	struct eth_tx_1st_bd	first_bd;
	struct eth_tx_2nd_bd	second_bd;
	struct eth_tx_3rd_bd	third_bd;
	struct eth_tx_bd	reg_bd;
};

/* Mstorm Queue Zone */
enum eth_tx_tunn_type {
	ETH_TX_TUNN_GENEVE,
	ETH_TX_TUNN_TTAG,
	ETH_TX_TUNN_GRE,
	ETH_TX_TUNN_VXLAN,
	MAX_ETH_TX_TUNN_TYPE
};

/* Ystorm Queue Zone */
struct xstorm_eth_queue_zone {
	struct coalescing_timeset int_coalescing_timeset;
	u8 reserved[7];
};

/* ETH doorbell data */
struct eth_db_data {
	u8 params;
#define ETH_DB_DATA_DEST_MASK         0x3
#define ETH_DB_DATA_DEST_SHIFT        0
#define ETH_DB_DATA_AGG_CMD_MASK      0x3
#define ETH_DB_DATA_AGG_CMD_SHIFT     2
#define ETH_DB_DATA_BYPASS_EN_MASK    0x1
#define ETH_DB_DATA_BYPASS_EN_SHIFT   4
#define ETH_DB_DATA_RESERVED_MASK     0x1
#define ETH_DB_DATA_RESERVED_SHIFT    5
#define ETH_DB_DATA_AGG_VAL_SEL_MASK  0x3
#define ETH_DB_DATA_AGG_VAL_SEL_SHIFT 6
	u8	agg_flags;
	__le16	bd_prod;
};

#endif /* __ETH_COMMON__ */
OpenPOWER on IntegriCloud