1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright 2017 6WIND S.A.
3 * Copyright 2017 Mellanox Technologies, Ltd
6 #ifndef RTE_PMD_MLX5_RXTX_VEC_ALTIVEC_H_
7 #define RTE_PMD_MLX5_RXTX_VEC_ALTIVEC_H_
13 #include <rte_altivec.h>
16 #include <rte_mempool.h>
17 #include <rte_prefetch.h>
21 #include "mlx5_defs.h"
23 #include "mlx5_utils.h"
24 #include "mlx5_rxtx.h"
25 #include "mlx5_rxtx_vec.h"
26 #include "mlx5_autoconf.h"
28 #ifndef __INTEL_COMPILER
29 #pragma GCC diagnostic ignored "-Wcast-qual"
30 #pragma GCC diagnostic ignored "-Wstrict-aliasing"
34 * Store free buffers to RX SW ring.
37 * Pointer to RX queue structure.
39 * Pointer to array of packets to be stored.
41 * Number of packets to be stored.
44 rxq_copy_mbuf_v(struct mlx5_rxq_data *rxq, struct rte_mbuf **pkts, uint16_t n)
46 const uint16_t q_mask = (1 << rxq->elts_n) - 1;
47 struct rte_mbuf **elts = &(*rxq->elts)[rxq->rq_pi & q_mask];
51 for (pos = 0; pos < p; pos += 2) {
52 vector unsigned char mbp;
54 mbp = (vector unsigned char)vec_vsx_ld(0,
55 (signed int const *)&elts[pos]);
56 *(vector unsigned char *)&pkts[pos] = mbp;
59 pkts[pos] = elts[pos];
63 * Decompress a compressed completion and fill in mbufs in RX SW ring with data
64 * extracted from the title completion descriptor.
67 * Pointer to RX queue structure.
69 * Pointer to completion array having a compressed completion at first.
71 * Pointer to SW ring to be filled. The first mbuf has to be pre-built from
72 * the title completion descriptor to be copied to the rest of mbufs.
75 * Number of mini-CQEs successfully decompressed.
77 static inline uint16_t
78 rxq_cq_decompress_v(struct mlx5_rxq_data *rxq, volatile struct mlx5_cqe *cq,
79 struct rte_mbuf **elts)
81 volatile struct mlx5_mini_cqe8 *mcq = (void *)&(cq + 1)->pkt_info;
82 struct rte_mbuf *t_pkt = elts[0]; /* Title packet is pre-built. */
83 const vector unsigned char zero = (vector unsigned char){0};
84 /* Mask to shuffle from extracted mini CQE to mbuf. */
85 const vector unsigned char shuf_mask1 = (vector unsigned char){
86 -1, -1, -1, -1, /* skip packet_type */
87 7, 6, -1, -1, /* bswap16, pkt_len */
88 7, 6, /* bswap16, data_len */
89 -1, -1, /* skip vlan_tci */
90 3, 2, 1, 0}; /* bswap32, rss */
91 const vector unsigned char shuf_mask2 = (vector unsigned char){
92 -1, -1, -1, -1, /* skip packet_type */
93 15, 14, -1, -1, /* bswap16, pkt_len */
94 15, 14, /* data_len, bswap16 */
95 -1, -1, /* skip vlan_tci */
96 11, 10, 9, 8}; /* bswap32, rss */
97 /* Restore the compressed count. Must be 16 bits. */
98 const uint16_t mcqe_n = t_pkt->data_len +
99 (rxq->crc_present * RTE_ETHER_CRC_LEN);
100 const vector unsigned char rearm =
101 (vector unsigned char)vec_vsx_ld(0,
102 (signed int const *)&t_pkt->rearm_data);
103 const vector unsigned char rxdf =
104 (vector unsigned char)vec_vsx_ld(0,
105 (signed int const *)&t_pkt->rx_descriptor_fields1);
106 const vector unsigned char crc_adj =
107 (vector unsigned char)(vector unsigned short){
108 0, 0, rxq->crc_present * RTE_ETHER_CRC_LEN, 0,
109 rxq->crc_present * RTE_ETHER_CRC_LEN, 0, 0, 0};
110 const vector unsigned short rxdf_sel_mask =
111 (vector unsigned short){
112 0xffff, 0xffff, 0, 0, 0, 0xffff, 0, 0};
113 const uint32_t flow_tag = t_pkt->hash.fdir.hi;
116 unsigned int inv = 0;
118 #ifdef MLX5_PMD_SOFT_COUNTERS
119 const vector unsigned char ones = vec_splat_u8(-1);
120 uint32_t rcvd_byte = 0;
121 /* Mask to shuffle byte_cnt to add up stats. Do bswap16 for all. */
122 const vector unsigned char len_shuf_mask = (vector unsigned char){
130 * A. load mCQEs into a 128bit register.
131 * B. store rearm data to mbuf.
132 * C. combine data from mCQEs with rx_descriptor_fields1.
133 * D. store rx_descriptor_fields1.
134 * E. store flow tag (rte_flow mark).
136 for (pos = 0; pos < mcqe_n; ) {
137 vector unsigned char mcqe1, mcqe2;
138 vector unsigned char rxdf1, rxdf2;
139 #ifdef MLX5_PMD_SOFT_COUNTERS
140 const vector unsigned short mcqe_sel_mask =
141 (vector unsigned short){0, 0, 0xffff, 0xffff,
142 0, 0, 0xfff, 0xffff};
143 const vector unsigned char lower_half = {
144 0, 1, 4, 5, 8, 9, 12, 13, 16,
145 17, 20, 21, 24, 25, 28, 29};
146 const vector unsigned char upper_half = {
147 2, 3, 6, 7, 10, 11, 14, 15,
148 18, 19, 22, 23, 26, 27, 30, 31};
149 vector unsigned short left, right;
150 vector unsigned char byte_cnt, invalid_mask;
151 vector unsigned long lshift;
152 __attribute__((altivec(vector__)))
153 __attribute__((altivec(bool__)))
154 unsigned long long shmask;
155 const vector unsigned long shmax = {64, 64};
158 for (i = 0; i < MLX5_VPMD_DESCS_PER_LOOP; ++i)
159 if (likely(pos + i < mcqe_n))
160 rte_prefetch0((void *)(cq + pos + i));
162 /* A.1 load mCQEs into a 128bit register. */
163 mcqe1 = (vector unsigned char)vec_vsx_ld(0,
164 (signed int const *)&mcq[pos % 8]);
165 mcqe2 = (vector unsigned char)vec_vsx_ld(0,
166 (signed int const *)&mcq[pos % 8 + 2]);
168 /* B.1 store rearm data to mbuf. */
169 *(vector unsigned char *)
170 &elts[pos]->rearm_data = rearm;
171 *(vector unsigned char *)
172 &elts[pos + 1]->rearm_data = rearm;
174 /* C.1 combine data from mCQEs with rx_descriptor_fields1. */
175 rxdf1 = vec_perm(mcqe1, zero, shuf_mask1);
176 rxdf2 = vec_perm(mcqe1, zero, shuf_mask2);
177 rxdf1 = (vector unsigned char)
178 ((vector unsigned short)rxdf1 -
179 (vector unsigned short)crc_adj);
180 rxdf2 = (vector unsigned char)
181 ((vector unsigned short)rxdf2 -
182 (vector unsigned short)crc_adj);
183 rxdf1 = (vector unsigned char)
184 vec_sel((vector unsigned short)rxdf1,
185 (vector unsigned short)rxdf, rxdf_sel_mask);
186 rxdf2 = (vector unsigned char)
187 vec_sel((vector unsigned short)rxdf2,
188 (vector unsigned short)rxdf, rxdf_sel_mask);
190 /* D.1 store rx_descriptor_fields1. */
191 *(vector unsigned char *)
192 &elts[pos]->rx_descriptor_fields1 = rxdf1;
193 *(vector unsigned char *)
194 &elts[pos + 1]->rx_descriptor_fields1 = rxdf2;
196 /* B.1 store rearm data to mbuf. */
197 *(vector unsigned char *)
198 &elts[pos + 2]->rearm_data = rearm;
199 *(vector unsigned char *)
200 &elts[pos + 3]->rearm_data = rearm;
202 /* C.1 combine data from mCQEs with rx_descriptor_fields1. */
203 rxdf1 = vec_perm(mcqe2, zero, shuf_mask1);
204 rxdf2 = vec_perm(mcqe2, zero, shuf_mask2);
205 rxdf1 = (vector unsigned char)
206 ((vector unsigned short)rxdf1 -
207 (vector unsigned short)crc_adj);
208 rxdf2 = (vector unsigned char)
209 ((vector unsigned short)rxdf2 -
210 (vector unsigned short)crc_adj);
211 rxdf1 = (vector unsigned char)
212 vec_sel((vector unsigned short)rxdf1,
213 (vector unsigned short)rxdf, rxdf_sel_mask);
214 rxdf2 = (vector unsigned char)
215 vec_sel((vector unsigned short)rxdf2,
216 (vector unsigned short)rxdf, rxdf_sel_mask);
218 /* D.1 store rx_descriptor_fields1. */
219 *(vector unsigned char *)
220 &elts[pos + 2]->rx_descriptor_fields1 = rxdf1;
221 *(vector unsigned char *)
222 &elts[pos + 3]->rx_descriptor_fields1 = rxdf2;
224 #ifdef MLX5_PMD_SOFT_COUNTERS
225 invalid_mask = (vector unsigned char)(vector unsigned long){
226 (mcqe_n - pos) * sizeof(uint16_t) * 8, 0};
229 vec_splat((vector unsigned long)invalid_mask, 0);
230 shmask = vec_cmpgt(shmax, lshift);
231 invalid_mask = (vector unsigned char)
232 vec_sl((vector unsigned long)ones, lshift);
233 invalid_mask = (vector unsigned char)
234 vec_sel((vector unsigned long)shmask,
235 (vector unsigned long)invalid_mask, shmask);
237 mcqe1 = (vector unsigned char)
238 vec_sro((vector unsigned short)mcqe1,
239 (vector unsigned char){32}),
240 byte_cnt = (vector unsigned char)
241 vec_sel((vector unsigned short)mcqe1,
242 (vector unsigned short)mcqe2, mcqe_sel_mask);
243 byte_cnt = vec_perm(byte_cnt, zero, len_shuf_mask);
244 byte_cnt = (vector unsigned char)
245 vec_andc((vector unsigned long)byte_cnt,
246 (vector unsigned long)invalid_mask);
247 left = vec_perm((vector unsigned short)byte_cnt,
248 (vector unsigned short)zero, lower_half);
249 right = vec_perm((vector unsigned short)byte_cnt,
250 (vector unsigned short)zero, upper_half);
251 byte_cnt = (vector unsigned char)vec_add(left, right);
252 left = vec_perm((vector unsigned short)byte_cnt,
253 (vector unsigned short)zero, lower_half);
254 right = vec_perm((vector unsigned short)byte_cnt,
255 (vector unsigned short)zero, upper_half);
256 byte_cnt = (vector unsigned char)vec_add(left, right);
257 rcvd_byte += ((vector unsigned long)byte_cnt)[0];
261 /* E.1 store flow tag (rte_flow mark). */
262 elts[pos]->hash.fdir.hi = flow_tag;
263 elts[pos + 1]->hash.fdir.hi = flow_tag;
264 elts[pos + 2]->hash.fdir.hi = flow_tag;
265 elts[pos + 3]->hash.fdir.hi = flow_tag;
267 if (!!rxq->flow_meta_mask) {
268 int32_t offs = rxq->flow_meta_offset;
269 const uint32_t meta =
270 *RTE_MBUF_DYNFIELD(t_pkt, offs, uint32_t *);
272 /* Check if title packet has valid metadata. */
274 MLX5_ASSERT(t_pkt->ol_flags & offs);
275 *RTE_MBUF_DYNFIELD(elts[pos], offs,
277 *RTE_MBUF_DYNFIELD(elts[pos + 1], offs,
279 *RTE_MBUF_DYNFIELD(elts[pos + 2], offs,
281 *RTE_MBUF_DYNFIELD(elts[pos + 3], offs,
286 pos += MLX5_VPMD_DESCS_PER_LOOP;
287 /* Move to next CQE and invalidate consumed CQEs. */
288 if (!(pos & 0x7) && pos < mcqe_n) {
289 mcq = (void *)&(cq + pos)->pkt_info;
290 for (i = 0; i < 8; ++i)
291 cq[inv++].op_own = MLX5_CQE_INVALIDATE;
295 /* Invalidate the rest of CQEs. */
296 for (; inv < mcqe_n; ++inv)
297 cq[inv].op_own = MLX5_CQE_INVALIDATE;
299 #ifdef MLX5_PMD_SOFT_COUNTERS
300 rxq->stats.ipackets += mcqe_n;
301 rxq->stats.ibytes += rcvd_byte;
304 rxq->cq_ci += mcqe_n;
309 * Calculate packet type and offload flag for mbuf and store it.
312 * Pointer to RX queue structure.
314 * Array of four 16bytes completions extracted from the original completion
317 * Opcode vector having responder error status. Each field is 4B.
319 * Pointer to array of packets to be filled.
322 rxq_cq_to_ptype_oflags_v(struct mlx5_rxq_data *rxq,
323 vector unsigned char cqes[4], vector unsigned char op_err,
324 struct rte_mbuf **pkts)
326 vector unsigned char pinfo0, pinfo1;
327 vector unsigned char pinfo, ptype;
328 vector unsigned char ol_flags = (vector unsigned char)
329 (vector unsigned int){
330 rxq->rss_hash * PKT_RX_RSS_HASH |
331 rxq->hw_timestamp * PKT_RX_TIMESTAMP,
332 rxq->rss_hash * PKT_RX_RSS_HASH |
333 rxq->hw_timestamp * PKT_RX_TIMESTAMP,
334 rxq->rss_hash * PKT_RX_RSS_HASH |
335 rxq->hw_timestamp * PKT_RX_TIMESTAMP,
336 rxq->rss_hash * PKT_RX_RSS_HASH |
337 rxq->hw_timestamp * PKT_RX_TIMESTAMP};
338 vector unsigned char cv_flags;
339 const vector unsigned char zero = (vector unsigned char){0};
340 const vector unsigned char ptype_mask =
341 (vector unsigned char)(vector unsigned int){
342 0x0000fd06, 0x0000fd06, 0x0000fd06, 0x0000fd06};
343 const vector unsigned char ptype_ol_mask =
344 (vector unsigned char)(vector unsigned int){
345 0x00000106, 0x00000106, 0x00000106, 0x00000106};
346 const vector unsigned char pinfo_mask =
347 (vector unsigned char)(vector unsigned int){
348 0x00000003, 0x00000003, 0x00000003, 0x00000003};
349 const vector unsigned char cv_flag_sel = (vector unsigned char){
350 0, (uint8_t)(PKT_RX_VLAN | PKT_RX_VLAN_STRIPPED),
351 (uint8_t)(PKT_RX_IP_CKSUM_GOOD >> 1), 0,
352 (uint8_t)(PKT_RX_L4_CKSUM_GOOD >> 1), 0,
353 (uint8_t)((PKT_RX_IP_CKSUM_GOOD | PKT_RX_L4_CKSUM_GOOD) >> 1),
354 0, 0, 0, 0, 0, 0, 0, 0, 0};
355 const vector unsigned char cv_mask =
356 (vector unsigned char)(vector unsigned int){
357 PKT_RX_IP_CKSUM_GOOD | PKT_RX_L4_CKSUM_GOOD |
358 PKT_RX_VLAN | PKT_RX_VLAN_STRIPPED,
359 PKT_RX_IP_CKSUM_GOOD | PKT_RX_L4_CKSUM_GOOD |
360 PKT_RX_VLAN | PKT_RX_VLAN_STRIPPED,
361 PKT_RX_IP_CKSUM_GOOD | PKT_RX_L4_CKSUM_GOOD |
362 PKT_RX_VLAN | PKT_RX_VLAN_STRIPPED,
363 PKT_RX_IP_CKSUM_GOOD | PKT_RX_L4_CKSUM_GOOD |
364 PKT_RX_VLAN | PKT_RX_VLAN_STRIPPED};
365 const vector unsigned char mbuf_init =
366 (vector unsigned char)vec_vsx_ld
367 (0, (vector unsigned char *)&rxq->mbuf_initializer);
368 const vector unsigned short rearm_sel_mask =
369 (vector unsigned short){0, 0, 0, 0, 0xffff, 0xffff, 0, 0};
370 vector unsigned char rearm0, rearm1, rearm2, rearm3;
371 uint8_t pt_idx0, pt_idx1, pt_idx2, pt_idx3;
373 /* Extract pkt_info field. */
374 pinfo0 = (vector unsigned char)
375 vec_mergeh((vector unsigned int)cqes[0],
376 (vector unsigned int)cqes[1]);
377 pinfo1 = (vector unsigned char)
378 vec_mergeh((vector unsigned int)cqes[2],
379 (vector unsigned int)cqes[3]);
380 pinfo = (vector unsigned char)
381 vec_mergeh((vector unsigned long)pinfo0,
382 (vector unsigned long)pinfo1);
384 /* Extract hdr_type_etc field. */
385 pinfo0 = (vector unsigned char)
386 vec_mergel((vector unsigned int)cqes[0],
387 (vector unsigned int)cqes[1]);
388 pinfo1 = (vector unsigned char)
389 vec_mergel((vector unsigned int)cqes[2],
390 (vector unsigned int)cqes[3]);
391 ptype = (vector unsigned char)
392 vec_mergeh((vector unsigned long)pinfo0,
393 (vector unsigned long)pinfo1);
396 const vector unsigned char pinfo_ft_mask =
397 (vector unsigned char)(vector unsigned int){
398 0xffffff00, 0xffffff00, 0xffffff00, 0xffffff00};
399 const vector unsigned char fdir_flags =
400 (vector unsigned char)(vector unsigned int){
401 PKT_RX_FDIR, PKT_RX_FDIR,
402 PKT_RX_FDIR, PKT_RX_FDIR};
403 vector unsigned char fdir_id_flags =
404 (vector unsigned char)(vector unsigned int){
405 PKT_RX_FDIR_ID, PKT_RX_FDIR_ID,
406 PKT_RX_FDIR_ID, PKT_RX_FDIR_ID};
407 vector unsigned char flow_tag, invalid_mask;
409 flow_tag = (vector unsigned char)
410 vec_and((vector unsigned long)pinfo,
411 (vector unsigned long)pinfo_ft_mask);
413 /* Check if flow tag is non-zero then set PKT_RX_FDIR. */
414 invalid_mask = (vector unsigned char)
415 vec_cmpeq((vector unsigned int)flow_tag,
416 (vector unsigned int)zero);
417 ol_flags = (vector unsigned char)
418 vec_or((vector unsigned long)ol_flags,
419 (vector unsigned long)
420 vec_andc((vector unsigned long)fdir_flags,
421 (vector unsigned long)invalid_mask));
423 /* Mask out invalid entries. */
424 fdir_id_flags = (vector unsigned char)
425 vec_andc((vector unsigned long)fdir_id_flags,
426 (vector unsigned long)invalid_mask);
428 /* Check if flow tag MLX5_FLOW_MARK_DEFAULT. */
429 ol_flags = (vector unsigned char)
430 vec_or((vector unsigned long)ol_flags,
431 (vector unsigned long)
432 vec_andc((vector unsigned long)fdir_id_flags,
433 (vector unsigned long)
434 vec_cmpeq((vector unsigned int)flow_tag,
435 (vector unsigned int)pinfo_ft_mask)));
438 * Merge the two fields to generate the following:
442 * bit[11:10] = l3_hdr_type
443 * bit[14:12] = l4_hdr_type
446 * bit[17] = outer_l3_type
448 ptype = (vector unsigned char)
449 vec_and((vector unsigned long)ptype,
450 (vector unsigned long)ptype_mask);
451 pinfo = (vector unsigned char)
452 vec_and((vector unsigned long)pinfo,
453 (vector unsigned long)pinfo_mask);
454 pinfo = (vector unsigned char)
455 vec_sl((vector unsigned int)pinfo,
456 (vector unsigned int){16, 16, 16, 16});
458 /* Make pinfo has merged fields for ol_flags calculation. */
459 pinfo = (vector unsigned char)
460 vec_or((vector unsigned long)ptype,
461 (vector unsigned long)pinfo);
462 ptype = (vector unsigned char)
463 vec_sr((vector unsigned int)pinfo,
464 (vector unsigned int){10, 10, 10, 10});
465 ptype = (vector unsigned char)
466 vec_packs((vector unsigned int)ptype,
467 (vector unsigned int)zero);
469 /* Errored packets will have RTE_PTYPE_ALL_MASK. */
470 op_err = (vector unsigned char)
471 vec_sr((vector unsigned short)op_err,
472 (vector unsigned short){8, 8, 8, 8, 8, 8, 8, 8});
473 ptype = (vector unsigned char)
474 vec_or((vector unsigned long)ptype,
475 (vector unsigned long)op_err);
477 pt_idx0 = (uint8_t)((vector unsigned char)ptype)[0];
478 pt_idx1 = (uint8_t)((vector unsigned char)ptype)[2];
479 pt_idx2 = (uint8_t)((vector unsigned char)ptype)[4];
480 pt_idx3 = (uint8_t)((vector unsigned char)ptype)[6];
482 pkts[0]->packet_type = mlx5_ptype_table[pt_idx0] |
483 !!(pt_idx0 & (1 << 6)) * rxq->tunnel;
484 pkts[1]->packet_type = mlx5_ptype_table[pt_idx1] |
485 !!(pt_idx1 & (1 << 6)) * rxq->tunnel;
486 pkts[2]->packet_type = mlx5_ptype_table[pt_idx2] |
487 !!(pt_idx2 & (1 << 6)) * rxq->tunnel;
488 pkts[3]->packet_type = mlx5_ptype_table[pt_idx3] |
489 !!(pt_idx3 & (1 << 6)) * rxq->tunnel;
491 /* Fill flags for checksum and VLAN. */
492 pinfo = (vector unsigned char)
493 vec_and((vector unsigned long)pinfo,
494 (vector unsigned long)ptype_ol_mask);
495 pinfo = vec_perm(cv_flag_sel, zero, pinfo);
497 /* Locate checksum flags at byte[2:1] and merge with VLAN flags. */
498 cv_flags = (vector unsigned char)
499 vec_sl((vector unsigned int)pinfo,
500 (vector unsigned int){9, 9, 9, 9});
501 cv_flags = (vector unsigned char)
502 vec_or((vector unsigned long)pinfo,
503 (vector unsigned long)cv_flags);
505 /* Move back flags to start from byte[0]. */
506 cv_flags = (vector unsigned char)
507 vec_sr((vector unsigned int)cv_flags,
508 (vector unsigned int){8, 8, 8, 8});
510 /* Mask out garbage bits. */
511 cv_flags = (vector unsigned char)
512 vec_and((vector unsigned long)cv_flags,
513 (vector unsigned long)cv_mask);
515 /* Merge to ol_flags. */
516 ol_flags = (vector unsigned char)
517 vec_or((vector unsigned long)ol_flags,
518 (vector unsigned long)cv_flags);
520 /* Merge mbuf_init and ol_flags. */
521 rearm0 = (vector unsigned char)
522 vec_sel((vector unsigned short)mbuf_init,
523 (vector unsigned short)
524 vec_slo((vector unsigned short)ol_flags,
525 (vector unsigned char){64}), rearm_sel_mask);
526 rearm1 = (vector unsigned char)
527 vec_sel((vector unsigned short)mbuf_init,
528 (vector unsigned short)
529 vec_slo((vector unsigned short)ol_flags,
530 (vector unsigned char){32}), rearm_sel_mask);
531 rearm2 = (vector unsigned char)
532 vec_sel((vector unsigned short)mbuf_init,
533 (vector unsigned short)ol_flags, rearm_sel_mask);
534 rearm3 = (vector unsigned char)
535 vec_sel((vector unsigned short)mbuf_init,
536 (vector unsigned short)
537 vec_sro((vector unsigned short)ol_flags,
538 (vector unsigned char){32}), rearm_sel_mask);
540 /* Write 8B rearm_data and 8B ol_flags. */
541 vec_vsx_st(rearm0, 0,
542 (vector unsigned char *)&pkts[0]->rearm_data);
543 vec_vsx_st(rearm1, 0,
544 (vector unsigned char *)&pkts[1]->rearm_data);
545 vec_vsx_st(rearm2, 0,
546 (vector unsigned char *)&pkts[2]->rearm_data);
547 vec_vsx_st(rearm3, 0,
548 (vector unsigned char *)&pkts[3]->rearm_data);
553 * Receive burst of packets. An errored completion also consumes a mbuf, but the
554 * packet_type is set to be RTE_PTYPE_ALL_MASK. Marked mbufs should be freed
555 * before returning to application.
558 * Pointer to RX queue structure.
560 * Array to store received packets.
562 * Maximum number of packets in array.
564 * Pointer to a flag. Set non-zero value if pkts array has at least one error
568 * Number of packets received including errors (<= pkts_n).
570 static inline uint16_t
571 rxq_burst_v(struct mlx5_rxq_data *rxq, struct rte_mbuf **pkts, uint16_t pkts_n,
574 const uint16_t q_n = 1 << rxq->cqe_n;
575 const uint16_t q_mask = q_n - 1;
576 volatile struct mlx5_cqe *cq;
577 struct rte_mbuf **elts;
581 uint64_t comp_idx = MLX5_VPMD_DESCS_PER_LOOP;
582 uint16_t nocmp_n = 0;
583 uint16_t rcvd_pkt = 0;
584 unsigned int cq_idx = rxq->cq_ci & q_mask;
585 unsigned int elts_idx;
586 unsigned int ownership = !!(rxq->cq_ci & (q_mask + 1));
587 const vector unsigned char zero = (vector unsigned char){0};
588 const vector unsigned char ones = vec_splat_u8(-1);
589 const vector unsigned char owner_check =
590 (vector unsigned char)(vector unsigned long){
591 0x0100000001000000LL, 0x0100000001000000LL};
592 const vector unsigned char opcode_check =
593 (vector unsigned char)(vector unsigned long){
594 0xf0000000f0000000LL, 0xf0000000f0000000LL};
595 const vector unsigned char format_check =
596 (vector unsigned char)(vector unsigned long){
597 0x0c0000000c000000LL, 0x0c0000000c000000LL};
598 const vector unsigned char resp_err_check =
599 (vector unsigned char)(vector unsigned long){
600 0xe0000000e0000000LL, 0xe0000000e0000000LL};
601 #ifdef MLX5_PMD_SOFT_COUNTERS
602 uint32_t rcvd_byte = 0;
603 /* Mask to shuffle byte_cnt to add up stats. Do bswap16 for all. */
604 const vector unsigned char len_shuf_mask = (vector unsigned char){
610 /* Mask to shuffle from extracted CQE to mbuf. */
611 const vector unsigned char shuf_mask = (vector unsigned char){
612 5, 4, /* bswap16, pkt_len */
613 -1, -1, /* zero out 2nd half of pkt_len */
614 5, 4, /* bswap16, data_len */
615 11, 10, /* bswap16, vlan+tci */
616 15, 14, 13, 12, /* bswap32, rss */
617 1, 2, 3, -1}; /* fdir.hi */
618 /* Mask to blend from the last Qword to the first DQword. */
619 /* Mask to blend from the last Qword to the first DQword. */
620 const vector unsigned char blend_mask = (vector unsigned char){
625 const vector unsigned char crc_adj =
626 (vector unsigned char)(vector unsigned short){
627 rxq->crc_present * RTE_ETHER_CRC_LEN, 0,
628 rxq->crc_present * RTE_ETHER_CRC_LEN, 0, 0, 0, 0, 0};
629 const vector unsigned char flow_mark_adj =
630 (vector unsigned char)(vector unsigned int){
631 0, 0, 0, rxq->mark * (-1)};
632 const vector unsigned short cqe_sel_mask1 =
633 (vector unsigned short){0, 0, 0, 0, 0xffff, 0xffff, 0, 0};
634 const vector unsigned short cqe_sel_mask2 =
635 (vector unsigned short){0, 0, 0xffff, 0, 0, 0, 0, 0};
637 MLX5_ASSERT(rxq->sges_n == 0);
638 MLX5_ASSERT(rxq->cqe_n == rxq->elts_n);
639 cq = &(*rxq->cqes)[cq_idx];
641 rte_prefetch0(cq + 1);
642 rte_prefetch0(cq + 2);
643 rte_prefetch0(cq + 3);
644 pkts_n = RTE_MIN(pkts_n, MLX5_VPMD_RX_MAX_BURST);
646 repl_n = q_n - (rxq->rq_ci - rxq->rq_pi);
647 if (repl_n >= rxq->rq_repl_thresh)
648 mlx5_rx_replenish_bulk_mbuf(rxq, repl_n);
649 /* See if there're unreturned mbufs from compressed CQE. */
650 rcvd_pkt = rxq->decompressed;
652 rcvd_pkt = RTE_MIN(rcvd_pkt, pkts_n);
653 rxq_copy_mbuf_v(rxq, pkts, rcvd_pkt);
654 rxq->rq_pi += rcvd_pkt;
655 rxq->decompressed -= rcvd_pkt;
658 elts_idx = rxq->rq_pi & q_mask;
659 elts = &(*rxq->elts)[elts_idx];
660 /* Not to overflow pkts array. */
661 pkts_n = RTE_ALIGN_FLOOR(pkts_n - rcvd_pkt, MLX5_VPMD_DESCS_PER_LOOP);
662 /* Not to cross queue end. */
663 pkts_n = RTE_MIN(pkts_n, q_n - elts_idx);
664 pkts_n = RTE_MIN(pkts_n, q_n - cq_idx);
667 /* At this point, there shouldn't be any remaining packets. */
668 MLX5_ASSERT(rxq->decompressed == 0);
671 * A. load first Qword (8bytes) in one loop.
672 * B. copy 4 mbuf pointers from elts ring to returing pkts.
673 * C. load remaining CQE data and extract necessary fields.
674 * Final 16bytes cqes[] extracted from original 64bytes CQE has the
675 * following structure:
678 * uint8_t flow_tag[3];
682 * uint16_t hdr_type_etc;
683 * uint16_t vlan_info;
684 * uint32_t rx_has_res;
688 * F. find compressed CQE.
692 pos += MLX5_VPMD_DESCS_PER_LOOP) {
693 vector unsigned char cqes[MLX5_VPMD_DESCS_PER_LOOP];
694 vector unsigned char cqe_tmp1, cqe_tmp2;
695 vector unsigned char pkt_mb0, pkt_mb1, pkt_mb2, pkt_mb3;
696 vector unsigned char op_own, op_own_tmp1, op_own_tmp2;
697 vector unsigned char opcode, owner_mask, invalid_mask;
698 vector unsigned char comp_mask;
699 vector unsigned char mask;
700 #ifdef MLX5_PMD_SOFT_COUNTERS
701 const vector unsigned char lower_half = {
702 0, 1, 4, 5, 8, 9, 12, 13,
703 16, 17, 20, 21, 24, 25, 28, 29};
704 const vector unsigned char upper_half = {
705 2, 3, 6, 7, 10, 11, 14, 15,
706 18, 19, 22, 23, 26, 27, 30, 31};
707 const vector unsigned long shmax = {64, 64};
708 vector unsigned char byte_cnt;
709 vector unsigned short left, right;
710 vector unsigned long lshift;
711 vector __attribute__((altivec(bool__)))
712 unsigned long shmask;
714 vector unsigned char mbp1, mbp2;
715 vector unsigned char p =
716 (vector unsigned char)(vector unsigned short){
717 0, 1, 2, 3, 0, 0, 0, 0};
718 unsigned int p1, p2, p3;
720 /* Prefetch next 4 CQEs. */
721 if (pkts_n - pos >= 2 * MLX5_VPMD_DESCS_PER_LOOP) {
722 rte_prefetch0(&cq[pos + MLX5_VPMD_DESCS_PER_LOOP]);
723 rte_prefetch0(&cq[pos + MLX5_VPMD_DESCS_PER_LOOP + 1]);
724 rte_prefetch0(&cq[pos + MLX5_VPMD_DESCS_PER_LOOP + 2]);
725 rte_prefetch0(&cq[pos + MLX5_VPMD_DESCS_PER_LOOP + 3]);
728 /* A.0 do not cross the end of CQ. */
729 mask = (vector unsigned char)(vector unsigned long){
730 (pkts_n - pos) * sizeof(uint16_t) * 8, 0};
733 vector unsigned long lshift;
734 vector __attribute__((altivec(bool__)))
735 unsigned long shmask;
736 const vector unsigned long shmax = {64, 64};
738 lshift = vec_splat((vector unsigned long)mask, 0);
739 shmask = vec_cmpgt(shmax, lshift);
740 mask = (vector unsigned char)
741 vec_sl((vector unsigned long)ones, lshift);
742 mask = (vector unsigned char)
743 vec_sel((vector unsigned long)shmask,
744 (vector unsigned long)mask, shmask);
747 p = (vector unsigned char)
748 vec_andc((vector unsigned long)p,
749 (vector unsigned long)mask);
752 p3 = (unsigned int)((vector unsigned short)p)[3];
753 cqes[3] = (vector unsigned char)(vector unsigned long){
754 *(__rte_aligned(8) unsigned long *)
755 &cq[pos + p3].sop_drop_qpn, 0LL};
756 rte_compiler_barrier();
758 p2 = (unsigned int)((vector unsigned short)p)[2];
759 cqes[2] = (vector unsigned char)(vector unsigned long){
760 *(__rte_aligned(8) unsigned long *)
761 &cq[pos + p2].sop_drop_qpn, 0LL};
762 rte_compiler_barrier();
764 /* B.1 load mbuf pointers. */
765 mbp1 = (vector unsigned char)vec_vsx_ld(0,
766 (signed int const *)&elts[pos]);
767 mbp2 = (vector unsigned char)vec_vsx_ld(0,
768 (signed int const *)&elts[pos + 2]);
770 /* A.1 load a block having op_own. */
771 p1 = (unsigned int)((vector unsigned short)p)[1];
772 cqes[1] = (vector unsigned char)(vector unsigned long){
773 *(__rte_aligned(8) unsigned long *)
774 &cq[pos + p1].sop_drop_qpn, 0LL};
775 rte_compiler_barrier();
777 cqes[0] = (vector unsigned char)(vector unsigned long){
778 *(__rte_aligned(8) unsigned long *)
779 &cq[pos].sop_drop_qpn, 0LL};
780 rte_compiler_barrier();
782 /* B.2 copy mbuf pointers. */
783 *(vector unsigned char *)&pkts[pos] = mbp1;
784 *(vector unsigned char *)&pkts[pos + 2] = mbp2;
787 /* C.1 load remaining CQE data and extract necessary fields. */
788 cqe_tmp2 = *(vector unsigned char *)
789 &cq[pos + p3].pkt_info;
790 cqe_tmp1 = *(vector unsigned char *)
791 &cq[pos + p2].pkt_info;
792 cqes[3] = vec_sel(cqes[3], cqe_tmp2, blend_mask);
793 cqes[2] = vec_sel(cqes[2], cqe_tmp1, blend_mask);
794 cqe_tmp2 = (vector unsigned char)vec_vsx_ld(0,
795 (signed int const *)&cq[pos + p3].csum);
796 cqe_tmp1 = (vector unsigned char)vec_vsx_ld(0,
797 (signed int const *)&cq[pos + p2].csum);
798 cqes[3] = (vector unsigned char)
799 vec_sel((vector unsigned short)cqes[3],
800 (vector unsigned short)cqe_tmp2, cqe_sel_mask1);
801 cqes[2] = (vector unsigned char)
802 vec_sel((vector unsigned short)cqes[2],
803 (vector unsigned short)cqe_tmp1, cqe_sel_mask1);
804 cqe_tmp2 = (vector unsigned char)(vector unsigned long){
805 *(__rte_aligned(8) unsigned long *)
806 &cq[pos + p3].rsvd3[9], 0LL};
807 cqe_tmp1 = (vector unsigned char)(vector unsigned long){
808 *(__rte_aligned(8) unsigned long *)
809 &cq[pos + p2].rsvd3[9], 0LL};
810 cqes[3] = (vector unsigned char)
811 vec_sel((vector unsigned short)cqes[3],
812 (vector unsigned short)cqe_tmp2,
813 (vector unsigned short)cqe_sel_mask2);
814 cqes[2] = (vector unsigned char)
815 vec_sel((vector unsigned short)cqes[2],
816 (vector unsigned short)cqe_tmp1,
817 (vector unsigned short)cqe_sel_mask2);
819 /* C.2 generate final structure for mbuf with swapping bytes. */
820 pkt_mb3 = vec_perm(cqes[3], zero, shuf_mask);
821 pkt_mb2 = vec_perm(cqes[2], zero, shuf_mask);
823 /* C.3 adjust CRC length. */
824 pkt_mb3 = (vector unsigned char)
825 ((vector unsigned short)pkt_mb3 -
826 (vector unsigned short)crc_adj);
827 pkt_mb2 = (vector unsigned char)
828 ((vector unsigned short)pkt_mb2 -
829 (vector unsigned short)crc_adj);
831 /* C.4 adjust flow mark. */
832 pkt_mb3 = (vector unsigned char)
833 ((vector unsigned int)pkt_mb3 +
834 (vector unsigned int)flow_mark_adj);
835 pkt_mb2 = (vector unsigned char)
836 ((vector unsigned int)pkt_mb2 +
837 (vector unsigned int)flow_mark_adj);
839 /* D.1 fill in mbuf - rx_descriptor_fields1. */
840 *(vector unsigned char *)
841 &pkts[pos + 3]->pkt_len = pkt_mb3;
842 *(vector unsigned char *)
843 &pkts[pos + 2]->pkt_len = pkt_mb2;
845 /* E.1 extract op_own field. */
846 op_own_tmp2 = (vector unsigned char)
847 vec_mergeh((vector unsigned int)cqes[2],
848 (vector unsigned int)cqes[3]);
850 /* C.1 load remaining CQE data and extract necessary fields. */
851 cqe_tmp2 = *(vector unsigned char *)
852 &cq[pos + p1].pkt_info;
853 cqe_tmp1 = *(vector unsigned char *)
855 cqes[1] = vec_sel(cqes[1], cqe_tmp2, blend_mask);
856 cqes[0] = vec_sel(cqes[0], cqe_tmp2, blend_mask);
857 cqe_tmp2 = (vector unsigned char)vec_vsx_ld(0,
858 (signed int const *)&cq[pos + p1].csum);
859 cqe_tmp1 = (vector unsigned char)vec_vsx_ld(0,
860 (signed int const *)&cq[pos].csum);
861 cqes[1] = (vector unsigned char)
862 vec_sel((vector unsigned short)cqes[1],
863 (vector unsigned short)cqe_tmp2, cqe_sel_mask1);
864 cqes[0] = (vector unsigned char)
865 vec_sel((vector unsigned short)cqes[0],
866 (vector unsigned short)cqe_tmp1, cqe_sel_mask1);
867 cqe_tmp2 = (vector unsigned char)(vector unsigned long){
868 *(__rte_aligned(8) unsigned long *)
869 &cq[pos + p1].rsvd3[9], 0LL};
870 cqe_tmp1 = (vector unsigned char)(vector unsigned long){
871 *(__rte_aligned(8) unsigned long *)
872 &cq[pos].rsvd3[9], 0LL};
873 cqes[1] = (vector unsigned char)
874 vec_sel((vector unsigned short)cqes[1],
875 (vector unsigned short)cqe_tmp2, cqe_sel_mask2);
876 cqes[0] = (vector unsigned char)
877 vec_sel((vector unsigned short)cqes[0],
878 (vector unsigned short)cqe_tmp1, cqe_sel_mask2);
880 /* C.2 generate final structure for mbuf with swapping bytes. */
881 pkt_mb1 = vec_perm(cqes[1], zero, shuf_mask);
882 pkt_mb0 = vec_perm(cqes[0], zero, shuf_mask);
884 /* C.3 adjust CRC length. */
885 pkt_mb1 = (vector unsigned char)
886 ((vector unsigned short)pkt_mb1 -
887 (vector unsigned short)crc_adj);
888 pkt_mb0 = (vector unsigned char)
889 ((vector unsigned short)pkt_mb0 -
890 (vector unsigned short)crc_adj);
892 /* C.4 adjust flow mark. */
893 pkt_mb1 = (vector unsigned char)
894 ((vector unsigned int)pkt_mb1 +
895 (vector unsigned int)flow_mark_adj);
896 pkt_mb0 = (vector unsigned char)
897 ((vector unsigned int)pkt_mb0 +
898 (vector unsigned int)flow_mark_adj);
900 /* E.1 extract op_own byte. */
901 op_own_tmp1 = (vector unsigned char)
902 vec_mergeh((vector unsigned int)cqes[0],
903 (vector unsigned int)cqes[1]);
904 op_own = (vector unsigned char)
905 vec_mergel((vector unsigned long)op_own_tmp1,
906 (vector unsigned long)op_own_tmp2);
908 /* D.1 fill in mbuf - rx_descriptor_fields1. */
909 *(vector unsigned char *)
910 &pkts[pos + 1]->pkt_len = pkt_mb1;
911 *(vector unsigned char *)
912 &pkts[pos]->pkt_len = pkt_mb0;
914 /* E.2 flip owner bit to mark CQEs from last round. */
915 owner_mask = (vector unsigned char)
916 vec_and((vector unsigned long)op_own,
917 (vector unsigned long)owner_check);
919 owner_mask = (vector unsigned char)
920 vec_xor((vector unsigned long)owner_mask,
921 (vector unsigned long)owner_check);
922 owner_mask = (vector unsigned char)
923 vec_cmpeq((vector unsigned int)owner_mask,
924 (vector unsigned int)owner_check);
925 owner_mask = (vector unsigned char)
926 vec_packs((vector unsigned int)owner_mask,
927 (vector unsigned int)zero);
929 /* E.3 get mask for invalidated CQEs. */
930 opcode = (vector unsigned char)
931 vec_and((vector unsigned long)op_own,
932 (vector unsigned long)opcode_check);
933 invalid_mask = (vector unsigned char)
934 vec_cmpeq((vector unsigned int)opcode_check,
935 (vector unsigned int)opcode);
936 invalid_mask = (vector unsigned char)
937 vec_packs((vector unsigned int)invalid_mask,
938 (vector unsigned int)zero);
940 /* E.4 mask out beyond boundary. */
941 invalid_mask = (vector unsigned char)
942 vec_or((vector unsigned long)invalid_mask,
943 (vector unsigned long)mask);
945 /* E.5 merge invalid_mask with invalid owner. */
946 invalid_mask = (vector unsigned char)
947 vec_or((vector unsigned long)invalid_mask,
948 (vector unsigned long)owner_mask);
950 /* F.1 find compressed CQE format. */
951 comp_mask = (vector unsigned char)
952 vec_and((vector unsigned long)op_own,
953 (vector unsigned long)format_check);
954 comp_mask = (vector unsigned char)
955 vec_cmpeq((vector unsigned int)comp_mask,
956 (vector unsigned int)format_check);
957 comp_mask = (vector unsigned char)
958 vec_packs((vector unsigned int)comp_mask,
959 (vector unsigned int)zero);
961 /* F.2 mask out invalid entries. */
962 comp_mask = (vector unsigned char)
963 vec_andc((vector unsigned long)comp_mask,
964 (vector unsigned long)invalid_mask);
965 comp_idx = ((vector unsigned long)comp_mask)[0];
967 /* F.3 get the first compressed CQE. */
968 comp_idx = comp_idx ? __builtin_ctzll(comp_idx) /
969 (sizeof(uint16_t) * 8) : MLX5_VPMD_DESCS_PER_LOOP;
971 /* E.6 mask out entries after the compressed CQE. */
972 mask = (vector unsigned char)(vector unsigned long){
973 (comp_idx * sizeof(uint16_t) * 8), 0};
974 lshift = vec_splat((vector unsigned long)mask, 0);
975 shmask = vec_cmpgt(shmax, lshift);
976 mask = (vector unsigned char)
977 vec_sl((vector unsigned long)ones, lshift);
978 mask = (vector unsigned char)
979 vec_sel((vector unsigned long)shmask,
980 (vector unsigned long)mask, shmask);
981 invalid_mask = (vector unsigned char)
982 vec_or((vector unsigned long)invalid_mask,
983 (vector unsigned long)mask);
985 /* E.7 count non-compressed valid CQEs. */
986 n = ((vector unsigned long)invalid_mask)[0];
987 n = n ? __builtin_ctzll(n) / (sizeof(uint16_t) * 8) :
988 MLX5_VPMD_DESCS_PER_LOOP;
991 /* D.2 get the final invalid mask. */
992 mask = (vector unsigned char)(vector unsigned long){
993 (n * sizeof(uint16_t) * 8), 0};
994 lshift = vec_splat((vector unsigned long)mask, 0);
995 shmask = vec_cmpgt(shmax, lshift);
996 mask = (vector unsigned char)
997 vec_sl((vector unsigned long)ones, lshift);
998 mask = (vector unsigned char)
999 vec_sel((vector unsigned long)shmask,
1000 (vector unsigned long)mask, shmask);
1001 invalid_mask = (vector unsigned char)
1002 vec_or((vector unsigned long)invalid_mask,
1003 (vector unsigned long)mask);
1005 /* D.3 check error in opcode. */
1006 opcode = (vector unsigned char)
1007 vec_cmpeq((vector unsigned int)resp_err_check,
1008 (vector unsigned int)opcode);
1009 opcode = (vector unsigned char)
1010 vec_packs((vector unsigned int)opcode,
1011 (vector unsigned int)zero);
1012 opcode = (vector unsigned char)
1013 vec_andc((vector unsigned long)opcode,
1014 (vector unsigned long)invalid_mask);
1016 /* D.4 mark if any error is set */
1017 *err |= ((vector unsigned long)opcode)[0];
1019 /* D.5 fill in mbuf - rearm_data and packet_type. */
1020 rxq_cq_to_ptype_oflags_v(rxq, cqes, opcode, &pkts[pos]);
1021 if (rxq->hw_timestamp) {
1022 pkts[pos]->timestamp =
1023 rte_be_to_cpu_64(cq[pos].timestamp);
1024 pkts[pos + 1]->timestamp =
1025 rte_be_to_cpu_64(cq[pos + p1].timestamp);
1026 pkts[pos + 2]->timestamp =
1027 rte_be_to_cpu_64(cq[pos + p2].timestamp);
1028 pkts[pos + 3]->timestamp =
1029 rte_be_to_cpu_64(cq[pos + p3].timestamp);
1031 if (!!rxq->flow_meta_mask) {
1032 uint64_t flag = rxq->flow_meta_mask;
1033 int32_t offs = rxq->flow_meta_offset;
1036 /* This code is subject for futher optimization. */
1037 metadata = cq[pos].flow_table_metadata;
1038 *RTE_MBUF_DYNFIELD(pkts[pos], offs, uint32_t *) =
1040 pkts[pos]->ol_flags |= metadata ? flag : 0ULL;
1041 metadata = cq[pos + 1].flow_table_metadata;
1042 *RTE_MBUF_DYNFIELD(pkts[pos + 1], offs, uint32_t *) =
1044 pkts[pos + 1]->ol_flags |= metadata ? flag : 0ULL;
1045 metadata = cq[pos + 2].flow_table_metadata;
1046 *RTE_MBUF_DYNFIELD(pkts[pos + 2], offs, uint32_t *) =
1048 pkts[pos + 2]->ol_flags |= metadata ? flag : 0ULL;
1049 metadata = cq[pos + 3].flow_table_metadata;
1050 *RTE_MBUF_DYNFIELD(pkts[pos + 3], offs, uint32_t *) =
1052 pkts[pos + 3]->ol_flags |= metadata ? flag : 0ULL;
1054 #ifdef MLX5_PMD_SOFT_COUNTERS
1055 /* Add up received bytes count. */
1056 byte_cnt = vec_perm(op_own, zero, len_shuf_mask);
1057 byte_cnt = (vector unsigned char)
1058 vec_andc((vector unsigned long)byte_cnt,
1059 (vector unsigned long)invalid_mask);
1060 left = vec_perm((vector unsigned short)byte_cnt,
1061 (vector unsigned short)zero, lower_half);
1062 right = vec_perm((vector unsigned short)byte_cnt,
1063 (vector unsigned short)zero, upper_half);
1064 byte_cnt = (vector unsigned char)vec_add(left, right);
1065 left = vec_perm((vector unsigned short)byte_cnt,
1066 (vector unsigned short)zero, lower_half);
1067 right = vec_perm((vector unsigned short)byte_cnt,
1068 (vector unsigned short)zero, upper_half);
1069 byte_cnt = (vector unsigned char)vec_add(left, right);
1070 rcvd_byte += ((vector unsigned long)byte_cnt)[0];
1074 * Break the loop unless more valid CQE is expected, or if
1075 * there's a compressed CQE.
1077 if (n != MLX5_VPMD_DESCS_PER_LOOP)
1080 /* If no new CQE seen, return without updating cq_db. */
1081 if (unlikely(!nocmp_n && comp_idx == MLX5_VPMD_DESCS_PER_LOOP))
1083 /* Update the consumer indexes for non-compressed CQEs. */
1084 MLX5_ASSERT(nocmp_n <= pkts_n);
1085 rxq->cq_ci += nocmp_n;
1086 rxq->rq_pi += nocmp_n;
1087 rcvd_pkt += nocmp_n;
1088 #ifdef MLX5_PMD_SOFT_COUNTERS
1089 rxq->stats.ipackets += nocmp_n;
1090 rxq->stats.ibytes += rcvd_byte;
1092 /* Decompress the last CQE if compressed. */
1093 if (comp_idx < MLX5_VPMD_DESCS_PER_LOOP && comp_idx == n) {
1094 MLX5_ASSERT(comp_idx == (nocmp_n % MLX5_VPMD_DESCS_PER_LOOP));
1096 rxq_cq_decompress_v(rxq, &cq[nocmp_n], &elts[nocmp_n]);
1097 /* Return more packets if needed. */
1098 if (nocmp_n < pkts_n) {
1099 uint16_t n = rxq->decompressed;
1101 n = RTE_MIN(n, pkts_n - nocmp_n);
1102 rxq_copy_mbuf_v(rxq, &pkts[nocmp_n], n);
1105 rxq->decompressed -= n;
1108 rte_compiler_barrier();
1109 *rxq->cq_db = rte_cpu_to_be_32(rxq->cq_ci);
1113 #endif /* RTE_PMD_MLX5_RXTX_VEC_ALTIVEC_H_ */