1 /*
2 * Copyright (c) 2013-2015, Mellanox Technologies. All rights reserved.
3 *
4 * This software is available to you under a choice of one of two
5 * licenses. You may choose to be licensed under the terms of the GNU
6 * General Public License (GPL) Version 2, available from the file
7 * COPYING in the main directory of this source tree, or the
8 * OpenIB.org BSD license below:
9 *
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
12 * conditions are met:
13 *
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
16 * disclaimer.
17 *
18 * - Redistributions in binary form must reproduce the above
19 * copyright notice, this list of conditions and the following
20 * disclaimer in the documentation and/or other materials
21 * provided with the distribution.
22 *
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
30 * SOFTWARE.
31 */
32
33 #ifndef MLX5_QP_H
34 #define MLX5_QP_H
35
36 #include <linux/mlx5/device.h>
37 #include <linux/mlx5/driver.h>
38
39 #define MLX5_TERMINATE_SCATTER_LIST_LKEY cpu_to_be32(0x100)
40 /* UMR (3 WQE_BB's) + SIG (3 WQE_BB's) + PSV (mem) + PSV (wire) */
41 #define MLX5_SIG_WQE_SIZE (MLX5_SEND_WQE_BB * 8)
42 #define MLX5_DIF_SIZE 8
43 #define MLX5_STRIDE_BLOCK_OP 0x400
44 #define MLX5_CPY_GRD_MASK 0xc0
45 #define MLX5_CPY_APP_MASK 0x30
46 #define MLX5_CPY_REF_MASK 0x0f
47 #define MLX5_BSF_INC_REFTAG (1 << 6)
48 #define MLX5_BSF_INL_VALID (1 << 15)
49 #define MLX5_BSF_REFRESH_DIF (1 << 14)
50 #define MLX5_BSF_REPEAT_BLOCK (1 << 7)
51 #define MLX5_BSF_APPTAG_ESCAPE 0x1
52 #define MLX5_BSF_APPREF_ESCAPE 0x2
53
54 enum mlx5_qp_optpar {
55 MLX5_QP_OPTPAR_ALT_ADDR_PATH = 1 << 0,
56 MLX5_QP_OPTPAR_RRE = 1 << 1,
57 MLX5_QP_OPTPAR_RAE = 1 << 2,
58 MLX5_QP_OPTPAR_RWE = 1 << 3,
59 MLX5_QP_OPTPAR_PKEY_INDEX = 1 << 4,
60 MLX5_QP_OPTPAR_Q_KEY = 1 << 5,
61 MLX5_QP_OPTPAR_RNR_TIMEOUT = 1 << 6,
62 MLX5_QP_OPTPAR_PRIMARY_ADDR_PATH = 1 << 7,
63 MLX5_QP_OPTPAR_SRA_MAX = 1 << 8,
64 MLX5_QP_OPTPAR_RRA_MAX = 1 << 9,
65 MLX5_QP_OPTPAR_PM_STATE = 1 << 10,
66 MLX5_QP_OPTPAR_RETRY_COUNT = 1 << 12,
67 MLX5_QP_OPTPAR_RNR_RETRY = 1 << 13,
68 MLX5_QP_OPTPAR_ACK_TIMEOUT = 1 << 14,
69 MLX5_QP_OPTPAR_LAG_TX_AFF = 1 << 15,
70 MLX5_QP_OPTPAR_PRI_PORT = 1 << 16,
71 MLX5_QP_OPTPAR_SRQN = 1 << 18,
72 MLX5_QP_OPTPAR_CQN_RCV = 1 << 19,
73 MLX5_QP_OPTPAR_DC_HS = 1 << 20,
74 MLX5_QP_OPTPAR_DC_KEY = 1 << 21,
75 MLX5_QP_OPTPAR_COUNTER_SET_ID = 1 << 25,
76 };
77
78 enum mlx5_qp_state {
79 MLX5_QP_STATE_RST = 0,
80 MLX5_QP_STATE_INIT = 1,
81 MLX5_QP_STATE_RTR = 2,
82 MLX5_QP_STATE_RTS = 3,
83 MLX5_QP_STATE_SQER = 4,
84 MLX5_QP_STATE_SQD = 5,
85 MLX5_QP_STATE_ERR = 6,
86 MLX5_QP_STATE_SQ_DRAINING = 7,
87 MLX5_QP_STATE_SUSPENDED = 9,
88 MLX5_QP_NUM_STATE,
89 MLX5_QP_STATE,
90 MLX5_QP_STATE_BAD,
91 };
92
93 enum {
94 MLX5_SQ_STATE_NA = MLX5_SQC_STATE_ERR + 1,
95 MLX5_SQ_NUM_STATE = MLX5_SQ_STATE_NA + 1,
96 MLX5_RQ_STATE_NA = MLX5_RQC_STATE_ERR + 1,
97 MLX5_RQ_NUM_STATE = MLX5_RQ_STATE_NA + 1,
98 };
99
100 enum {
101 MLX5_QP_ST_RC = 0x0,
102 MLX5_QP_ST_UC = 0x1,
103 MLX5_QP_ST_UD = 0x2,
104 MLX5_QP_ST_XRC = 0x3,
105 MLX5_QP_ST_MLX = 0x4,
106 MLX5_QP_ST_DCI = 0x5,
107 MLX5_QP_ST_DCT = 0x6,
108 MLX5_QP_ST_QP0 = 0x7,
109 MLX5_QP_ST_QP1 = 0x8,
110 MLX5_QP_ST_RAW_ETHERTYPE = 0x9,
111 MLX5_QP_ST_RAW_IPV6 = 0xa,
112 MLX5_QP_ST_SNIFFER = 0xb,
113 MLX5_QP_ST_SYNC_UMR = 0xe,
114 MLX5_QP_ST_PTP_1588 = 0xd,
115 MLX5_QP_ST_REG_UMR = 0xc,
116 MLX5_QP_ST_MAX
117 };
118
119 enum {
120 MLX5_QP_PM_MIGRATED = 0x3,
121 MLX5_QP_PM_ARMED = 0x0,
122 MLX5_QP_PM_REARM = 0x1
123 };
124
125 enum {
126 MLX5_NON_ZERO_RQ = 0x0,
127 MLX5_SRQ_RQ = 0x1,
128 MLX5_CRQ_RQ = 0x2,
129 MLX5_ZERO_LEN_RQ = 0x3
130 };
131
132 /* TODO REM */
133 enum {
134 /* params1 */
135 MLX5_QP_BIT_SRE = 1 << 15,
136 MLX5_QP_BIT_SWE = 1 << 14,
137 MLX5_QP_BIT_SAE = 1 << 13,
138 /* params2 */
139 MLX5_QP_BIT_RRE = 1 << 15,
140 MLX5_QP_BIT_RWE = 1 << 14,
141 MLX5_QP_BIT_RAE = 1 << 13,
142 MLX5_QP_BIT_RIC = 1 << 4,
143 MLX5_QP_BIT_CC_SLAVE_RECV = 1 << 2,
144 MLX5_QP_BIT_CC_SLAVE_SEND = 1 << 1,
145 MLX5_QP_BIT_CC_MASTER = 1 << 0
146 };
147
148 enum {
149 MLX5_WQE_CTRL_CQ_UPDATE = 2 << 2,
150 MLX5_WQE_CTRL_CQ_UPDATE_AND_EQE = 3 << 2,
151 MLX5_WQE_CTRL_SOLICITED = 1 << 1,
152 MLX5_WQE_CTRL_INITIATOR_SMALL_FENCE = 1 << 5,
153 };
154
155 enum {
156 MLX5_SEND_WQE_DS = 16,
157 MLX5_SEND_WQE_BB = 64,
158 };
159
160 #define MLX5_SEND_WQEBB_NUM_DS (MLX5_SEND_WQE_BB / MLX5_SEND_WQE_DS)
161
162 enum {
163 MLX5_SEND_WQE_MAX_WQEBBS = 16,
164 };
165
166 #define MLX5_SEND_WQE_MAX_SIZE (MLX5_SEND_WQE_MAX_WQEBBS * MLX5_SEND_WQE_BB)
167
168 enum {
169 MLX5_WQE_FMR_PERM_LOCAL_READ = 1 << 27,
170 MLX5_WQE_FMR_PERM_LOCAL_WRITE = 1 << 28,
171 MLX5_WQE_FMR_PERM_REMOTE_READ = 1 << 29,
172 MLX5_WQE_FMR_PERM_REMOTE_WRITE = 1 << 30,
173 MLX5_WQE_FMR_PERM_ATOMIC = 1 << 31
174 };
175
176 enum {
177 MLX5_FENCE_MODE_NONE = 0 << 5,
178 MLX5_FENCE_MODE_INITIATOR_SMALL = 1 << 5,
179 MLX5_FENCE_MODE_FENCE = 2 << 5,
180 MLX5_FENCE_MODE_STRONG_ORDERING = 3 << 5,
181 MLX5_FENCE_MODE_SMALL_AND_FENCE = 4 << 5,
182 };
183
184 enum {
185 MLX5_RCV_DBR = 0,
186 MLX5_SND_DBR = 1,
187 };
188
189 enum {
190 MLX5_FLAGS_INLINE = 1<<7,
191 MLX5_FLAGS_CHECK_FREE = 1<<5,
192 };
193
194 struct mlx5_wqe_fmr_seg {
195 __be32 flags;
196 __be32 mem_key;
197 __be64 buf_list;
198 __be64 start_addr;
199 __be64 reg_len;
200 __be32 offset;
201 __be32 page_size;
202 u32 reserved[2];
203 };
204
205 struct mlx5_wqe_ctrl_seg {
206 __be32 opmod_idx_opcode;
207 __be32 qpn_ds;
208
209 struct_group(trailer,
210
211 u8 signature;
212 u8 rsvd[2];
213 u8 fm_ce_se;
214 union {
215 __be32 general_id;
216 __be32 imm;
217 __be32 umr_mkey;
218 __be32 tis_tir_num;
219 };
220
221 ); /* end of trailer group */
222 };
223
224 #define MLX5_WQE_CTRL_DS_MASK 0x3f
225 #define MLX5_WQE_CTRL_QPN_MASK 0xffffff00
226 #define MLX5_WQE_CTRL_QPN_SHIFT 8
227 #define MLX5_WQE_DS_UNITS 16
228 #define MLX5_WQE_CTRL_OPCODE_MASK 0xff
229 #define MLX5_WQE_CTRL_WQE_INDEX_MASK 0x00ffff00
230 #define MLX5_WQE_CTRL_WQE_INDEX_SHIFT 8
231
232 enum {
233 MLX5_ETH_WQE_L3_INNER_CSUM = 1 << 4,
234 MLX5_ETH_WQE_L4_INNER_CSUM = 1 << 5,
235 MLX5_ETH_WQE_L3_CSUM = 1 << 6,
236 MLX5_ETH_WQE_L4_CSUM = 1 << 7,
237 };
238
239 enum {
240 MLX5_ETH_WQE_SVLAN = 1 << 0,
241 MLX5_ETH_WQE_TRAILER_HDR_OUTER_IP_ASSOC = 1 << 26,
242 MLX5_ETH_WQE_TRAILER_HDR_OUTER_L4_ASSOC = 1 << 27,
243 MLX5_ETH_WQE_TRAILER_HDR_INNER_IP_ASSOC = 3 << 26,
244 MLX5_ETH_WQE_TRAILER_HDR_INNER_L4_ASSOC = 1 << 28,
245 MLX5_ETH_WQE_INSERT_TRAILER = 1 << 30,
246 MLX5_ETH_WQE_INSERT_VLAN = 1 << 15,
247 };
248
249 enum {
250 MLX5_ETH_WQE_SWP_INNER_L3_IPV6 = 1 << 0,
251 MLX5_ETH_WQE_SWP_INNER_L4_UDP = 1 << 1,
252 MLX5_ETH_WQE_SWP_OUTER_L3_IPV6 = 1 << 4,
253 MLX5_ETH_WQE_SWP_OUTER_L4_UDP = 1 << 5,
254 };
255
256 enum {
257 MLX5_ETH_WQE_FT_META_IPSEC = BIT(0),
258 MLX5_ETH_WQE_FT_META_MACSEC = BIT(1),
259 };
260
261 struct mlx5_wqe_eth_seg {
262 u8 swp_outer_l4_offset;
263 u8 swp_outer_l3_offset;
264 u8 swp_inner_l4_offset;
265 u8 swp_inner_l3_offset;
266 u8 cs_flags;
267 u8 swp_flags;
268 __be16 mss;
269 __be32 flow_table_metadata;
270 union {
271 struct {
272 __be16 sz;
273 union {
274 u8 start[2];
275 DECLARE_FLEX_ARRAY(u8, data);
276 };
277 } inline_hdr;
278 struct {
279 __be16 type;
280 __be16 vlan_tci;
281 } insert;
282 __be32 trailer;
283 };
284 };
285
286 struct mlx5_wqe_xrc_seg {
287 __be32 xrc_srqn;
288 u8 rsvd[12];
289 };
290
291 struct mlx5_wqe_masked_atomic_seg {
292 __be64 swap_add;
293 __be64 compare;
294 __be64 swap_add_mask;
295 __be64 compare_mask;
296 };
297
298 struct mlx5_base_av {
299 union {
300 struct {
301 __be32 qkey;
302 __be32 reserved;
303 } qkey;
304 __be64 dc_key;
305 } key;
306 __be32 dqp_dct;
307 u8 stat_rate_sl;
308 u8 fl_mlid;
309 union {
310 __be16 rlid;
311 __be16 udp_sport;
312 };
313 };
314
315 struct mlx5_av {
316 union {
317 struct {
318 __be32 qkey;
319 __be32 reserved;
320 } qkey;
321 __be64 dc_key;
322 } key;
323 __be32 dqp_dct;
324 u8 stat_rate_sl;
325 u8 fl_mlid;
326 union {
327 __be16 rlid;
328 __be16 udp_sport;
329 };
330 u8 reserved0[4];
331 u8 rmac[6];
332 u8 tclass;
333 u8 hop_limit;
334 __be32 grh_gid_fl;
335 u8 rgid[16];
336 };
337
338 struct mlx5_ib_ah {
339 struct ib_ah ibah;
340 struct mlx5_av av;
341 u8 xmit_port;
342 };
343
to_mah(struct ib_ah * ibah)344 static inline struct mlx5_ib_ah *to_mah(struct ib_ah *ibah)
345 {
346 return container_of(ibah, struct mlx5_ib_ah, ibah);
347 }
348
349 struct mlx5_wqe_datagram_seg {
350 struct mlx5_av av;
351 };
352
353 struct mlx5_wqe_raddr_seg {
354 __be64 raddr;
355 __be32 rkey;
356 u32 reserved;
357 };
358
359 struct mlx5_wqe_atomic_seg {
360 __be64 swap_add;
361 __be64 compare;
362 };
363
364 struct mlx5_wqe_data_seg {
365 __be32 byte_count;
366 __be32 lkey;
367 __be64 addr;
368 };
369
370 struct mlx5_wqe_umr_ctrl_seg {
371 u8 flags;
372 u8 rsvd0[3];
373 __be16 xlt_octowords;
374 union {
375 __be16 xlt_offset;
376 __be16 bsf_octowords;
377 };
378 __be64 mkey_mask;
379 __be32 xlt_offset_47_16;
380 u8 rsvd1[28];
381 };
382
383 struct mlx5_seg_set_psv {
384 __be32 psv_num;
385 __be16 syndrome;
386 __be16 status;
387 __be32 transient_sig;
388 __be32 ref_tag;
389 };
390
391 struct mlx5_seg_get_psv {
392 u8 rsvd[19];
393 u8 num_psv;
394 __be32 l_key;
395 __be64 va;
396 __be32 psv_index[4];
397 };
398
399 struct mlx5_seg_check_psv {
400 u8 rsvd0[2];
401 __be16 err_coalescing_op;
402 u8 rsvd1[2];
403 __be16 xport_err_op;
404 u8 rsvd2[2];
405 __be16 xport_err_mask;
406 u8 rsvd3[7];
407 u8 num_psv;
408 __be32 l_key;
409 __be64 va;
410 __be32 psv_index[4];
411 };
412
413 struct mlx5_rwqe_sig {
414 u8 rsvd0[4];
415 u8 signature;
416 u8 rsvd1[11];
417 };
418
419 struct mlx5_wqe_signature_seg {
420 u8 rsvd0[4];
421 u8 signature;
422 u8 rsvd1[11];
423 };
424
425 #define MLX5_WQE_INLINE_SEG_BYTE_COUNT_MASK 0x3ff
426
427 struct mlx5_wqe_inline_seg {
428 __be32 byte_count;
429 __be32 data[];
430 };
431
432 enum mlx5_sig_type {
433 MLX5_DIF_CRC = 0x1,
434 MLX5_DIF_IPCS = 0x2,
435 };
436
437 struct mlx5_bsf_inl {
438 __be16 vld_refresh;
439 __be16 dif_apptag;
440 __be32 dif_reftag;
441 u8 sig_type;
442 u8 rp_inv_seed;
443 u8 rsvd[3];
444 u8 dif_inc_ref_guard_check;
445 __be16 dif_app_bitmask_check;
446 };
447
448 struct mlx5_bsf {
449 struct mlx5_bsf_basic {
450 u8 bsf_size_sbs;
451 u8 check_byte_mask;
452 union {
453 u8 copy_byte_mask;
454 u8 bs_selector;
455 u8 rsvd_wflags;
456 } wire;
457 union {
458 u8 bs_selector;
459 u8 rsvd_mflags;
460 } mem;
461 __be32 raw_data_size;
462 __be32 w_bfs_psv;
463 __be32 m_bfs_psv;
464 } basic;
465 struct mlx5_bsf_ext {
466 __be32 t_init_gen_pro_size;
467 __be32 rsvd_epi_size;
468 __be32 w_tfs_psv;
469 __be32 m_tfs_psv;
470 } ext;
471 struct mlx5_bsf_inl w_inl;
472 struct mlx5_bsf_inl m_inl;
473 };
474
475 struct mlx5_mtt {
476 __be64 ptag;
477 };
478
479 struct mlx5_klm {
480 __be32 bcount;
481 __be32 key;
482 __be64 va;
483 };
484
485 struct mlx5_ksm {
486 __be32 reserved;
487 __be32 key;
488 __be64 va;
489 };
490
491 struct mlx5_stride_block_entry {
492 __be16 stride;
493 __be16 bcount;
494 __be32 key;
495 __be64 va;
496 };
497
498 struct mlx5_stride_block_ctrl_seg {
499 __be32 bcount_per_cycle;
500 __be32 op;
501 __be32 repeat_count;
502 u16 rsvd;
503 __be16 num_entries;
504 };
505
506 struct mlx5_wqe_flow_update_ctrl_seg {
507 __be32 flow_idx_update;
508 __be32 dest_handle;
509 u8 reserved0[40];
510 };
511
512 struct mlx5_wqe_header_modify_argument_update_seg {
513 u8 argument_list[64];
514 };
515
516 struct mlx5_core_qp {
517 struct mlx5_core_rsc_common common; /* must be first */
518 void (*event) (struct mlx5_core_qp *, int);
519 int qpn;
520 struct mlx5_rsc_debug *dbg;
521 int pid;
522 u16 uid;
523 };
524
525 struct mlx5_core_dct {
526 struct mlx5_core_qp mqp;
527 struct completion drained;
528 };
529
530 int mlx5_debug_qp_add(struct mlx5_core_dev *dev, struct mlx5_core_qp *qp);
531 void mlx5_debug_qp_remove(struct mlx5_core_dev *dev, struct mlx5_core_qp *qp);
532
mlx5_qp_type_str(int type)533 static inline const char *mlx5_qp_type_str(int type)
534 {
535 switch (type) {
536 case MLX5_QP_ST_RC: return "RC";
537 case MLX5_QP_ST_UC: return "C";
538 case MLX5_QP_ST_UD: return "UD";
539 case MLX5_QP_ST_XRC: return "XRC";
540 case MLX5_QP_ST_MLX: return "MLX";
541 case MLX5_QP_ST_QP0: return "QP0";
542 case MLX5_QP_ST_QP1: return "QP1";
543 case MLX5_QP_ST_RAW_ETHERTYPE: return "RAW_ETHERTYPE";
544 case MLX5_QP_ST_RAW_IPV6: return "RAW_IPV6";
545 case MLX5_QP_ST_SNIFFER: return "SNIFFER";
546 case MLX5_QP_ST_SYNC_UMR: return "SYNC_UMR";
547 case MLX5_QP_ST_PTP_1588: return "PTP_1588";
548 case MLX5_QP_ST_REG_UMR: return "REG_UMR";
549 default: return "Invalid transport type";
550 }
551 }
552
mlx5_qp_state_str(int state)553 static inline const char *mlx5_qp_state_str(int state)
554 {
555 switch (state) {
556 case MLX5_QP_STATE_RST:
557 return "RST";
558 case MLX5_QP_STATE_INIT:
559 return "INIT";
560 case MLX5_QP_STATE_RTR:
561 return "RTR";
562 case MLX5_QP_STATE_RTS:
563 return "RTS";
564 case MLX5_QP_STATE_SQER:
565 return "SQER";
566 case MLX5_QP_STATE_SQD:
567 return "SQD";
568 case MLX5_QP_STATE_ERR:
569 return "ERR";
570 case MLX5_QP_STATE_SQ_DRAINING:
571 return "SQ_DRAINING";
572 case MLX5_QP_STATE_SUSPENDED:
573 return "SUSPENDED";
574 default: return "Invalid QP state";
575 }
576 }
577
mlx5_get_qp_default_ts(struct mlx5_core_dev * dev)578 static inline int mlx5_get_qp_default_ts(struct mlx5_core_dev *dev)
579 {
580 u8 supported_ts_cap = mlx5_get_roce_state(dev) ?
581 MLX5_CAP_ROCE(dev, qp_ts_format) :
582 MLX5_CAP_GEN(dev, sq_ts_format);
583
584 return supported_ts_cap ? MLX5_TIMESTAMP_FORMAT_DEFAULT :
585 MLX5_TIMESTAMP_FORMAT_FREE_RUNNING;
586 }
587
588 #endif /* MLX5_QP_H */
589