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_
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 (rte_flow_dynf_metadata_avail()) {
268 const uint32_t meta = *RTE_FLOW_DYNF_METADATA(t_pkt);
270 /* Check if title packet has valid metadata. */
272 MLX5_ASSERT(t_pkt->ol_flags &
273 PKT_RX_DYNF_METADATA);
274 *RTE_FLOW_DYNF_METADATA(elts[pos]) = meta;
275 *RTE_FLOW_DYNF_METADATA(elts[pos + 1]) = meta;
276 *RTE_FLOW_DYNF_METADATA(elts[pos + 2]) = meta;
277 *RTE_FLOW_DYNF_METADATA(elts[pos + 3]) = meta;
281 pos += MLX5_VPMD_DESCS_PER_LOOP;
282 /* Move to next CQE and invalidate consumed CQEs. */
283 if (!(pos & 0x7) && pos < mcqe_n) {
284 mcq = (void *)&(cq + pos)->pkt_info;
285 for (i = 0; i < 8; ++i)
286 cq[inv++].op_own = MLX5_CQE_INVALIDATE;
290 /* Invalidate the rest of CQEs. */
291 for (; inv < mcqe_n; ++inv)
292 cq[inv].op_own = MLX5_CQE_INVALIDATE;
294 #ifdef MLX5_PMD_SOFT_COUNTERS
295 rxq->stats.ipackets += mcqe_n;
296 rxq->stats.ibytes += rcvd_byte;
299 rxq->cq_ci += mcqe_n;
304 * Calculate packet type and offload flag for mbuf and store it.
307 * Pointer to RX queue structure.
309 * Array of four 16bytes completions extracted from the original completion
312 * Opcode vector having responder error status. Each field is 4B.
314 * Pointer to array of packets to be filled.
317 rxq_cq_to_ptype_oflags_v(struct mlx5_rxq_data *rxq,
318 vector unsigned char cqes[4], vector unsigned char op_err,
319 struct rte_mbuf **pkts)
321 vector unsigned char pinfo0, pinfo1;
322 vector unsigned char pinfo, ptype;
323 vector unsigned char ol_flags = (vector unsigned char)
324 (vector unsigned int){
325 rxq->rss_hash * PKT_RX_RSS_HASH |
326 rxq->hw_timestamp * PKT_RX_TIMESTAMP,
327 rxq->rss_hash * PKT_RX_RSS_HASH |
328 rxq->hw_timestamp * PKT_RX_TIMESTAMP,
329 rxq->rss_hash * PKT_RX_RSS_HASH |
330 rxq->hw_timestamp * PKT_RX_TIMESTAMP,
331 rxq->rss_hash * PKT_RX_RSS_HASH |
332 rxq->hw_timestamp * PKT_RX_TIMESTAMP};
333 vector unsigned char cv_flags;
334 const vector unsigned char zero = (vector unsigned char){0};
335 const vector unsigned char ptype_mask =
336 (vector unsigned char)(vector unsigned int){
337 0x0000fd06, 0x0000fd06, 0x0000fd06, 0x0000fd06};
338 const vector unsigned char ptype_ol_mask =
339 (vector unsigned char)(vector unsigned int){
340 0x00000106, 0x00000106, 0x00000106, 0x00000106};
341 const vector unsigned char pinfo_mask =
342 (vector unsigned char)(vector unsigned int){
343 0x00000003, 0x00000003, 0x00000003, 0x00000003};
344 const vector unsigned char cv_flag_sel = (vector unsigned char){
345 0, (uint8_t)(PKT_RX_VLAN | PKT_RX_VLAN_STRIPPED),
346 (uint8_t)(PKT_RX_IP_CKSUM_GOOD >> 1), 0,
347 (uint8_t)(PKT_RX_L4_CKSUM_GOOD >> 1), 0,
348 (uint8_t)((PKT_RX_IP_CKSUM_GOOD | PKT_RX_L4_CKSUM_GOOD) >> 1),
349 0, 0, 0, 0, 0, 0, 0, 0, 0};
350 const vector unsigned char cv_mask =
351 (vector unsigned char)(vector unsigned int){
352 PKT_RX_IP_CKSUM_GOOD | PKT_RX_L4_CKSUM_GOOD |
353 PKT_RX_VLAN | PKT_RX_VLAN_STRIPPED,
354 PKT_RX_IP_CKSUM_GOOD | PKT_RX_L4_CKSUM_GOOD |
355 PKT_RX_VLAN | PKT_RX_VLAN_STRIPPED,
356 PKT_RX_IP_CKSUM_GOOD | PKT_RX_L4_CKSUM_GOOD |
357 PKT_RX_VLAN | PKT_RX_VLAN_STRIPPED,
358 PKT_RX_IP_CKSUM_GOOD | PKT_RX_L4_CKSUM_GOOD |
359 PKT_RX_VLAN | PKT_RX_VLAN_STRIPPED};
360 const vector unsigned char mbuf_init =
361 (vector unsigned char)vec_vsx_ld
362 (0, (vector unsigned char *)&rxq->mbuf_initializer);
363 const vector unsigned short rearm_sel_mask =
364 (vector unsigned short){0, 0, 0, 0, 0xffff, 0xffff, 0, 0};
365 vector unsigned char rearm0, rearm1, rearm2, rearm3;
366 uint8_t pt_idx0, pt_idx1, pt_idx2, pt_idx3;
368 /* Extract pkt_info field. */
369 pinfo0 = (vector unsigned char)
370 vec_mergeh((vector unsigned int)cqes[0],
371 (vector unsigned int)cqes[1]);
372 pinfo1 = (vector unsigned char)
373 vec_mergeh((vector unsigned int)cqes[2],
374 (vector unsigned int)cqes[3]);
375 pinfo = (vector unsigned char)
376 vec_mergeh((vector unsigned long)pinfo0,
377 (vector unsigned long)pinfo1);
379 /* Extract hdr_type_etc field. */
380 pinfo0 = (vector unsigned char)
381 vec_mergel((vector unsigned int)cqes[0],
382 (vector unsigned int)cqes[1]);
383 pinfo1 = (vector unsigned char)
384 vec_mergel((vector unsigned int)cqes[2],
385 (vector unsigned int)cqes[3]);
386 ptype = (vector unsigned char)
387 vec_mergeh((vector unsigned long)pinfo0,
388 (vector unsigned long)pinfo1);
391 const vector unsigned char pinfo_ft_mask =
392 (vector unsigned char)(vector unsigned int){
393 0xffffff00, 0xffffff00, 0xffffff00, 0xffffff00};
394 const vector unsigned char fdir_flags =
395 (vector unsigned char)(vector unsigned int){
396 PKT_RX_FDIR, PKT_RX_FDIR,
397 PKT_RX_FDIR, PKT_RX_FDIR};
398 vector unsigned char fdir_id_flags =
399 (vector unsigned char)(vector unsigned int){
400 PKT_RX_FDIR_ID, PKT_RX_FDIR_ID,
401 PKT_RX_FDIR_ID, PKT_RX_FDIR_ID};
402 vector unsigned char flow_tag, invalid_mask;
404 flow_tag = (vector unsigned char)
405 vec_and((vector unsigned long)pinfo,
406 (vector unsigned long)pinfo_ft_mask);
408 /* Check if flow tag is non-zero then set PKT_RX_FDIR. */
409 invalid_mask = (vector unsigned char)
410 vec_cmpeq((vector unsigned int)flow_tag,
411 (vector unsigned int)zero);
412 ol_flags = (vector unsigned char)
413 vec_or((vector unsigned long)ol_flags,
414 (vector unsigned long)
415 vec_andc((vector unsigned long)fdir_flags,
416 (vector unsigned long)invalid_mask));
418 /* Mask out invalid entries. */
419 fdir_id_flags = (vector unsigned char)
420 vec_andc((vector unsigned long)fdir_id_flags,
421 (vector unsigned long)invalid_mask);
423 /* Check if flow tag MLX5_FLOW_MARK_DEFAULT. */
424 ol_flags = (vector unsigned char)
425 vec_or((vector unsigned long)ol_flags,
426 (vector unsigned long)
427 vec_andc((vector unsigned long)fdir_id_flags,
428 (vector unsigned long)
429 vec_cmpeq((vector unsigned int)flow_tag,
430 (vector unsigned int)pinfo_ft_mask)));
433 * Merge the two fields to generate the following:
437 * bit[11:10] = l3_hdr_type
438 * bit[14:12] = l4_hdr_type
441 * bit[17] = outer_l3_type
443 ptype = (vector unsigned char)
444 vec_and((vector unsigned long)ptype,
445 (vector unsigned long)ptype_mask);
446 pinfo = (vector unsigned char)
447 vec_and((vector unsigned long)pinfo,
448 (vector unsigned long)pinfo_mask);
449 pinfo = (vector unsigned char)
450 vec_sl((vector unsigned int)pinfo,
451 (vector unsigned int){16, 16, 16, 16});
453 /* Make pinfo has merged fields for ol_flags calculation. */
454 pinfo = (vector unsigned char)
455 vec_or((vector unsigned long)ptype,
456 (vector unsigned long)pinfo);
457 ptype = (vector unsigned char)
458 vec_sr((vector unsigned int)pinfo,
459 (vector unsigned int){10, 10, 10, 10});
460 ptype = (vector unsigned char)
461 vec_packs((vector unsigned int)ptype,
462 (vector unsigned int)zero);
464 /* Errored packets will have RTE_PTYPE_ALL_MASK. */
465 op_err = (vector unsigned char)
466 vec_sr((vector unsigned short)op_err,
467 (vector unsigned short){8, 8, 8, 8, 8, 8, 8, 8});
468 ptype = (vector unsigned char)
469 vec_or((vector unsigned long)ptype,
470 (vector unsigned long)op_err);
472 pt_idx0 = (uint8_t)((vector unsigned char)ptype)[0];
473 pt_idx1 = (uint8_t)((vector unsigned char)ptype)[2];
474 pt_idx2 = (uint8_t)((vector unsigned char)ptype)[4];
475 pt_idx3 = (uint8_t)((vector unsigned char)ptype)[6];
477 pkts[0]->packet_type = mlx5_ptype_table[pt_idx0] |
478 !!(pt_idx0 & (1 << 6)) * rxq->tunnel;
479 pkts[1]->packet_type = mlx5_ptype_table[pt_idx1] |
480 !!(pt_idx1 & (1 << 6)) * rxq->tunnel;
481 pkts[2]->packet_type = mlx5_ptype_table[pt_idx2] |
482 !!(pt_idx2 & (1 << 6)) * rxq->tunnel;
483 pkts[3]->packet_type = mlx5_ptype_table[pt_idx3] |
484 !!(pt_idx3 & (1 << 6)) * rxq->tunnel;
486 /* Fill flags for checksum and VLAN. */
487 pinfo = (vector unsigned char)
488 vec_and((vector unsigned long)pinfo,
489 (vector unsigned long)ptype_ol_mask);
490 pinfo = vec_perm(cv_flag_sel, zero, pinfo);
492 /* Locate checksum flags at byte[2:1] and merge with VLAN flags. */
493 cv_flags = (vector unsigned char)
494 vec_sl((vector unsigned int)pinfo,
495 (vector unsigned int){9, 9, 9, 9});
496 cv_flags = (vector unsigned char)
497 vec_or((vector unsigned long)pinfo,
498 (vector unsigned long)cv_flags);
500 /* Move back flags to start from byte[0]. */
501 cv_flags = (vector unsigned char)
502 vec_sr((vector unsigned int)cv_flags,
503 (vector unsigned int){8, 8, 8, 8});
505 /* Mask out garbage bits. */
506 cv_flags = (vector unsigned char)
507 vec_and((vector unsigned long)cv_flags,
508 (vector unsigned long)cv_mask);
510 /* Merge to ol_flags. */
511 ol_flags = (vector unsigned char)
512 vec_or((vector unsigned long)ol_flags,
513 (vector unsigned long)cv_flags);
515 /* Merge mbuf_init and ol_flags. */
516 rearm0 = (vector unsigned char)
517 vec_sel((vector unsigned short)mbuf_init,
518 (vector unsigned short)
519 vec_slo((vector unsigned short)ol_flags,
520 (vector unsigned char){64}), rearm_sel_mask);
521 rearm1 = (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){32}), rearm_sel_mask);
526 rearm2 = (vector unsigned char)
527 vec_sel((vector unsigned short)mbuf_init,
528 (vector unsigned short)ol_flags, rearm_sel_mask);
529 rearm3 = (vector unsigned char)
530 vec_sel((vector unsigned short)mbuf_init,
531 (vector unsigned short)
532 vec_sro((vector unsigned short)ol_flags,
533 (vector unsigned char){32}), rearm_sel_mask);
535 /* Write 8B rearm_data and 8B ol_flags. */
536 vec_vsx_st(rearm0, 0,
537 (vector unsigned char *)&pkts[0]->rearm_data);
538 vec_vsx_st(rearm1, 0,
539 (vector unsigned char *)&pkts[1]->rearm_data);
540 vec_vsx_st(rearm2, 0,
541 (vector unsigned char *)&pkts[2]->rearm_data);
542 vec_vsx_st(rearm3, 0,
543 (vector unsigned char *)&pkts[3]->rearm_data);
548 * Receive burst of packets. An errored completion also consumes a mbuf, but the
549 * packet_type is set to be RTE_PTYPE_ALL_MASK. Marked mbufs should be freed
550 * before returning to application.
553 * Pointer to RX queue structure.
555 * Array to store received packets.
557 * Maximum number of packets in array.
559 * Pointer to a flag. Set non-zero value if pkts array has at least one error
563 * Number of packets received including errors (<= pkts_n).
565 static inline uint16_t
566 rxq_burst_v(struct mlx5_rxq_data *rxq, struct rte_mbuf **pkts, uint16_t pkts_n,
569 const uint16_t q_n = 1 << rxq->cqe_n;
570 const uint16_t q_mask = q_n - 1;
571 volatile struct mlx5_cqe *cq;
572 struct rte_mbuf **elts;
576 uint64_t comp_idx = MLX5_VPMD_DESCS_PER_LOOP;
577 uint16_t nocmp_n = 0;
578 uint16_t rcvd_pkt = 0;
579 unsigned int cq_idx = rxq->cq_ci & q_mask;
580 unsigned int elts_idx;
581 unsigned int ownership = !!(rxq->cq_ci & (q_mask + 1));
582 const vector unsigned char zero = (vector unsigned char){0};
583 const vector unsigned char ones = vec_splat_u8(-1);
584 const vector unsigned char owner_check =
585 (vector unsigned char)(vector unsigned long){
586 0x0100000001000000LL, 0x0100000001000000LL};
587 const vector unsigned char opcode_check =
588 (vector unsigned char)(vector unsigned long){
589 0xf0000000f0000000LL, 0xf0000000f0000000LL};
590 const vector unsigned char format_check =
591 (vector unsigned char)(vector unsigned long){
592 0x0c0000000c000000LL, 0x0c0000000c000000LL};
593 const vector unsigned char resp_err_check =
594 (vector unsigned char)(vector unsigned long){
595 0xe0000000e0000000LL, 0xe0000000e0000000LL};
596 #ifdef MLX5_PMD_SOFT_COUNTERS
597 uint32_t rcvd_byte = 0;
598 /* Mask to shuffle byte_cnt to add up stats. Do bswap16 for all. */
599 const vector unsigned char len_shuf_mask = (vector unsigned char){
605 /* Mask to shuffle from extracted CQE to mbuf. */
606 const vector unsigned char shuf_mask = (vector unsigned char){
607 5, 4, /* bswap16, pkt_len */
608 -1, -1, /* zero out 2nd half of pkt_len */
609 5, 4, /* bswap16, data_len */
610 11, 10, /* bswap16, vlan+tci */
611 15, 14, 13, 12, /* bswap32, rss */
612 1, 2, 3, -1}; /* fdir.hi */
613 /* Mask to blend from the last Qword to the first DQword. */
614 /* Mask to blend from the last Qword to the first DQword. */
615 const vector unsigned char blend_mask = (vector unsigned char){
620 const vector unsigned char crc_adj =
621 (vector unsigned char)(vector unsigned short){
622 rxq->crc_present * RTE_ETHER_CRC_LEN, 0,
623 rxq->crc_present * RTE_ETHER_CRC_LEN, 0, 0, 0, 0, 0};
624 const vector unsigned char flow_mark_adj =
625 (vector unsigned char)(vector unsigned int){
626 0, 0, 0, rxq->mark * (-1)};
627 const vector unsigned short cqe_sel_mask1 =
628 (vector unsigned short){0, 0, 0, 0, 0xffff, 0xffff, 0, 0};
629 const vector unsigned short cqe_sel_mask2 =
630 (vector unsigned short){0, 0, 0xffff, 0, 0, 0, 0, 0};
632 MLX5_ASSERT(rxq->sges_n == 0);
633 MLX5_ASSERT(rxq->cqe_n == rxq->elts_n);
634 cq = &(*rxq->cqes)[cq_idx];
636 rte_prefetch0(cq + 1);
637 rte_prefetch0(cq + 2);
638 rte_prefetch0(cq + 3);
639 pkts_n = RTE_MIN(pkts_n, MLX5_VPMD_RX_MAX_BURST);
641 repl_n = q_n - (rxq->rq_ci - rxq->rq_pi);
642 if (repl_n >= rxq->rq_repl_thresh)
643 mlx5_rx_replenish_bulk_mbuf(rxq, repl_n);
644 /* See if there're unreturned mbufs from compressed CQE. */
645 rcvd_pkt = rxq->decompressed;
647 rcvd_pkt = RTE_MIN(rcvd_pkt, pkts_n);
648 rxq_copy_mbuf_v(rxq, pkts, rcvd_pkt);
649 rxq->rq_pi += rcvd_pkt;
650 rxq->decompressed -= rcvd_pkt;
653 elts_idx = rxq->rq_pi & q_mask;
654 elts = &(*rxq->elts)[elts_idx];
655 /* Not to overflow pkts array. */
656 pkts_n = RTE_ALIGN_FLOOR(pkts_n - rcvd_pkt, MLX5_VPMD_DESCS_PER_LOOP);
657 /* Not to cross queue end. */
658 pkts_n = RTE_MIN(pkts_n, q_n - elts_idx);
659 pkts_n = RTE_MIN(pkts_n, q_n - cq_idx);
662 /* At this point, there shouldn't be any remaining packets. */
663 MLX5_ASSERT(rxq->decompressed == 0);
666 * A. load first Qword (8bytes) in one loop.
667 * B. copy 4 mbuf pointers from elts ring to returing pkts.
668 * C. load remaining CQE data and extract necessary fields.
669 * Final 16bytes cqes[] extracted from original 64bytes CQE has the
670 * following structure:
673 * uint8_t flow_tag[3];
677 * uint16_t hdr_type_etc;
678 * uint16_t vlan_info;
679 * uint32_t rx_has_res;
683 * F. find compressed CQE.
687 pos += MLX5_VPMD_DESCS_PER_LOOP) {
688 vector unsigned char cqes[MLX5_VPMD_DESCS_PER_LOOP];
689 vector unsigned char cqe_tmp1, cqe_tmp2;
690 vector unsigned char pkt_mb0, pkt_mb1, pkt_mb2, pkt_mb3;
691 vector unsigned char op_own, op_own_tmp1, op_own_tmp2;
692 vector unsigned char opcode, owner_mask, invalid_mask;
693 vector unsigned char comp_mask;
694 vector unsigned char mask;
695 #ifdef MLX5_PMD_SOFT_COUNTERS
696 const vector unsigned char lower_half = {
697 0, 1, 4, 5, 8, 9, 12, 13,
698 16, 17, 20, 21, 24, 25, 28, 29};
699 const vector unsigned char upper_half = {
700 2, 3, 6, 7, 10, 11, 14, 15,
701 18, 19, 22, 23, 26, 27, 30, 31};
702 const vector unsigned long shmax = {64, 64};
703 vector unsigned char byte_cnt;
704 vector unsigned short left, right;
705 vector unsigned long lshift;
706 vector __attribute__((altivec(bool__)))
707 unsigned long shmask;
709 vector unsigned char mbp1, mbp2;
710 vector unsigned char p =
711 (vector unsigned char)(vector unsigned short){
712 0, 1, 2, 3, 0, 0, 0, 0};
713 unsigned int p1, p2, p3;
715 /* Prefetch next 4 CQEs. */
716 if (pkts_n - pos >= 2 * MLX5_VPMD_DESCS_PER_LOOP) {
717 rte_prefetch0(&cq[pos + MLX5_VPMD_DESCS_PER_LOOP]);
718 rte_prefetch0(&cq[pos + MLX5_VPMD_DESCS_PER_LOOP + 1]);
719 rte_prefetch0(&cq[pos + MLX5_VPMD_DESCS_PER_LOOP + 2]);
720 rte_prefetch0(&cq[pos + MLX5_VPMD_DESCS_PER_LOOP + 3]);
723 /* A.0 do not cross the end of CQ. */
724 mask = (vector unsigned char)(vector unsigned long){
725 (pkts_n - pos) * sizeof(uint16_t) * 8, 0};
728 vector unsigned long lshift;
729 vector __attribute__((altivec(bool__)))
730 unsigned long shmask;
731 const vector unsigned long shmax = {64, 64};
733 lshift = vec_splat((vector unsigned long)mask, 0);
734 shmask = vec_cmpgt(shmax, lshift);
735 mask = (vector unsigned char)
736 vec_sl((vector unsigned long)ones, lshift);
737 mask = (vector unsigned char)
738 vec_sel((vector unsigned long)shmask,
739 (vector unsigned long)mask, shmask);
742 p = (vector unsigned char)
743 vec_andc((vector unsigned long)p,
744 (vector unsigned long)mask);
747 p3 = (unsigned int)((vector unsigned short)p)[3];
748 cqes[3] = (vector unsigned char)(vector unsigned long){
749 *(__rte_aligned(8) unsigned long *)
750 &cq[pos + p3].sop_drop_qpn, 0LL};
751 rte_compiler_barrier();
753 p2 = (unsigned int)((vector unsigned short)p)[2];
754 cqes[2] = (vector unsigned char)(vector unsigned long){
755 *(__rte_aligned(8) unsigned long *)
756 &cq[pos + p2].sop_drop_qpn, 0LL};
757 rte_compiler_barrier();
759 /* B.1 load mbuf pointers. */
760 mbp1 = (vector unsigned char)vec_vsx_ld(0,
761 (signed int const *)&elts[pos]);
762 mbp2 = (vector unsigned char)vec_vsx_ld(0,
763 (signed int const *)&elts[pos + 2]);
765 /* A.1 load a block having op_own. */
766 p1 = (unsigned int)((vector unsigned short)p)[1];
767 cqes[1] = (vector unsigned char)(vector unsigned long){
768 *(__rte_aligned(8) unsigned long *)
769 &cq[pos + p1].sop_drop_qpn, 0LL};
770 rte_compiler_barrier();
772 cqes[0] = (vector unsigned char)(vector unsigned long){
773 *(__rte_aligned(8) unsigned long *)
774 &cq[pos].sop_drop_qpn, 0LL};
775 rte_compiler_barrier();
777 /* B.2 copy mbuf pointers. */
778 *(vector unsigned char *)&pkts[pos] = mbp1;
779 *(vector unsigned char *)&pkts[pos + 2] = mbp2;
782 /* C.1 load remaining CQE data and extract necessary fields. */
783 cqe_tmp2 = *(vector unsigned char *)
784 &cq[pos + p3].pkt_info;
785 cqe_tmp1 = *(vector unsigned char *)
786 &cq[pos + p2].pkt_info;
787 cqes[3] = vec_sel(cqes[3], cqe_tmp2, blend_mask);
788 cqes[2] = vec_sel(cqes[2], cqe_tmp1, blend_mask);
789 cqe_tmp2 = (vector unsigned char)vec_vsx_ld(0,
790 (signed int const *)&cq[pos + p3].csum);
791 cqe_tmp1 = (vector unsigned char)vec_vsx_ld(0,
792 (signed int const *)&cq[pos + p2].csum);
793 cqes[3] = (vector unsigned char)
794 vec_sel((vector unsigned short)cqes[3],
795 (vector unsigned short)cqe_tmp2, cqe_sel_mask1);
796 cqes[2] = (vector unsigned char)
797 vec_sel((vector unsigned short)cqes[2],
798 (vector unsigned short)cqe_tmp1, cqe_sel_mask1);
799 cqe_tmp2 = (vector unsigned char)(vector unsigned long){
800 *(__rte_aligned(8) unsigned long *)
801 &cq[pos + p3].rsvd3[9], 0LL};
802 cqe_tmp1 = (vector unsigned char)(vector unsigned long){
803 *(__rte_aligned(8) unsigned long *)
804 &cq[pos + p2].rsvd3[9], 0LL};
805 cqes[3] = (vector unsigned char)
806 vec_sel((vector unsigned short)cqes[3],
807 (vector unsigned short)cqe_tmp2,
808 (vector unsigned short)cqe_sel_mask2);
809 cqes[2] = (vector unsigned char)
810 vec_sel((vector unsigned short)cqes[2],
811 (vector unsigned short)cqe_tmp1,
812 (vector unsigned short)cqe_sel_mask2);
814 /* C.2 generate final structure for mbuf with swapping bytes. */
815 pkt_mb3 = vec_perm(cqes[3], zero, shuf_mask);
816 pkt_mb2 = vec_perm(cqes[2], zero, shuf_mask);
818 /* C.3 adjust CRC length. */
819 pkt_mb3 = (vector unsigned char)
820 ((vector unsigned short)pkt_mb3 -
821 (vector unsigned short)crc_adj);
822 pkt_mb2 = (vector unsigned char)
823 ((vector unsigned short)pkt_mb2 -
824 (vector unsigned short)crc_adj);
826 /* C.4 adjust flow mark. */
827 pkt_mb3 = (vector unsigned char)
828 ((vector unsigned int)pkt_mb3 +
829 (vector unsigned int)flow_mark_adj);
830 pkt_mb2 = (vector unsigned char)
831 ((vector unsigned int)pkt_mb2 +
832 (vector unsigned int)flow_mark_adj);
834 /* D.1 fill in mbuf - rx_descriptor_fields1. */
835 *(vector unsigned char *)
836 &pkts[pos + 3]->pkt_len = pkt_mb3;
837 *(vector unsigned char *)
838 &pkts[pos + 2]->pkt_len = pkt_mb2;
840 /* E.1 extract op_own field. */
841 op_own_tmp2 = (vector unsigned char)
842 vec_mergeh((vector unsigned int)cqes[2],
843 (vector unsigned int)cqes[3]);
845 /* C.1 load remaining CQE data and extract necessary fields. */
846 cqe_tmp2 = *(vector unsigned char *)
847 &cq[pos + p1].pkt_info;
848 cqe_tmp1 = *(vector unsigned char *)
850 cqes[1] = vec_sel(cqes[1], cqe_tmp2, blend_mask);
851 cqes[0] = vec_sel(cqes[0], cqe_tmp2, blend_mask);
852 cqe_tmp2 = (vector unsigned char)vec_vsx_ld(0,
853 (signed int const *)&cq[pos + p1].csum);
854 cqe_tmp1 = (vector unsigned char)vec_vsx_ld(0,
855 (signed int const *)&cq[pos].csum);
856 cqes[1] = (vector unsigned char)
857 vec_sel((vector unsigned short)cqes[1],
858 (vector unsigned short)cqe_tmp2, cqe_sel_mask1);
859 cqes[0] = (vector unsigned char)
860 vec_sel((vector unsigned short)cqes[0],
861 (vector unsigned short)cqe_tmp1, cqe_sel_mask1);
862 cqe_tmp2 = (vector unsigned char)(vector unsigned long){
863 *(__rte_aligned(8) unsigned long *)
864 &cq[pos + p1].rsvd3[9], 0LL};
865 cqe_tmp1 = (vector unsigned char)(vector unsigned long){
866 *(__rte_aligned(8) unsigned long *)
867 &cq[pos].rsvd3[9], 0LL};
868 cqes[1] = (vector unsigned char)
869 vec_sel((vector unsigned short)cqes[1],
870 (vector unsigned short)cqe_tmp2, cqe_sel_mask2);
871 cqes[0] = (vector unsigned char)
872 vec_sel((vector unsigned short)cqes[0],
873 (vector unsigned short)cqe_tmp1, cqe_sel_mask2);
875 /* C.2 generate final structure for mbuf with swapping bytes. */
876 pkt_mb1 = vec_perm(cqes[1], zero, shuf_mask);
877 pkt_mb0 = vec_perm(cqes[0], zero, shuf_mask);
879 /* C.3 adjust CRC length. */
880 pkt_mb1 = (vector unsigned char)
881 ((vector unsigned short)pkt_mb1 -
882 (vector unsigned short)crc_adj);
883 pkt_mb0 = (vector unsigned char)
884 ((vector unsigned short)pkt_mb0 -
885 (vector unsigned short)crc_adj);
887 /* C.4 adjust flow mark. */
888 pkt_mb1 = (vector unsigned char)
889 ((vector unsigned int)pkt_mb1 +
890 (vector unsigned int)flow_mark_adj);
891 pkt_mb0 = (vector unsigned char)
892 ((vector unsigned int)pkt_mb0 +
893 (vector unsigned int)flow_mark_adj);
895 /* E.1 extract op_own byte. */
896 op_own_tmp1 = (vector unsigned char)
897 vec_mergeh((vector unsigned int)cqes[0],
898 (vector unsigned int)cqes[1]);
899 op_own = (vector unsigned char)
900 vec_mergel((vector unsigned long)op_own_tmp1,
901 (vector unsigned long)op_own_tmp2);
903 /* D.1 fill in mbuf - rx_descriptor_fields1. */
904 *(vector unsigned char *)
905 &pkts[pos + 1]->pkt_len = pkt_mb1;
906 *(vector unsigned char *)
907 &pkts[pos]->pkt_len = pkt_mb0;
909 /* E.2 flip owner bit to mark CQEs from last round. */
910 owner_mask = (vector unsigned char)
911 vec_and((vector unsigned long)op_own,
912 (vector unsigned long)owner_check);
914 owner_mask = (vector unsigned char)
915 vec_xor((vector unsigned long)owner_mask,
916 (vector unsigned long)owner_check);
917 owner_mask = (vector unsigned char)
918 vec_cmpeq((vector unsigned int)owner_mask,
919 (vector unsigned int)owner_check);
920 owner_mask = (vector unsigned char)
921 vec_packs((vector unsigned int)owner_mask,
922 (vector unsigned int)zero);
924 /* E.3 get mask for invalidated CQEs. */
925 opcode = (vector unsigned char)
926 vec_and((vector unsigned long)op_own,
927 (vector unsigned long)opcode_check);
928 invalid_mask = (vector unsigned char)
929 vec_cmpeq((vector unsigned int)opcode_check,
930 (vector unsigned int)opcode);
931 invalid_mask = (vector unsigned char)
932 vec_packs((vector unsigned int)invalid_mask,
933 (vector unsigned int)zero);
935 /* E.4 mask out beyond boundary. */
936 invalid_mask = (vector unsigned char)
937 vec_or((vector unsigned long)invalid_mask,
938 (vector unsigned long)mask);
940 /* E.5 merge invalid_mask with invalid owner. */
941 invalid_mask = (vector unsigned char)
942 vec_or((vector unsigned long)invalid_mask,
943 (vector unsigned long)owner_mask);
945 /* F.1 find compressed CQE format. */
946 comp_mask = (vector unsigned char)
947 vec_and((vector unsigned long)op_own,
948 (vector unsigned long)format_check);
949 comp_mask = (vector unsigned char)
950 vec_cmpeq((vector unsigned int)comp_mask,
951 (vector unsigned int)format_check);
952 comp_mask = (vector unsigned char)
953 vec_packs((vector unsigned int)comp_mask,
954 (vector unsigned int)zero);
956 /* F.2 mask out invalid entries. */
957 comp_mask = (vector unsigned char)
958 vec_andc((vector unsigned long)comp_mask,
959 (vector unsigned long)invalid_mask);
960 comp_idx = ((vector unsigned long)comp_mask)[0];
962 /* F.3 get the first compressed CQE. */
963 comp_idx = comp_idx ? __builtin_ctzll(comp_idx) /
964 (sizeof(uint16_t) * 8) : MLX5_VPMD_DESCS_PER_LOOP;
966 /* E.6 mask out entries after the compressed CQE. */
967 mask = (vector unsigned char)(vector unsigned long){
968 (comp_idx * sizeof(uint16_t) * 8), 0};
969 lshift = vec_splat((vector unsigned long)mask, 0);
970 shmask = vec_cmpgt(shmax, lshift);
971 mask = (vector unsigned char)
972 vec_sl((vector unsigned long)ones, lshift);
973 mask = (vector unsigned char)
974 vec_sel((vector unsigned long)shmask,
975 (vector unsigned long)mask, shmask);
976 invalid_mask = (vector unsigned char)
977 vec_or((vector unsigned long)invalid_mask,
978 (vector unsigned long)mask);
980 /* E.7 count non-compressed valid CQEs. */
981 n = ((vector unsigned long)invalid_mask)[0];
982 n = n ? __builtin_ctzll(n) / (sizeof(uint16_t) * 8) :
983 MLX5_VPMD_DESCS_PER_LOOP;
986 /* D.2 get the final invalid mask. */
987 mask = (vector unsigned char)(vector unsigned long){
988 (n * sizeof(uint16_t) * 8), 0};
989 lshift = vec_splat((vector unsigned long)mask, 0);
990 shmask = vec_cmpgt(shmax, lshift);
991 mask = (vector unsigned char)
992 vec_sl((vector unsigned long)ones, lshift);
993 mask = (vector unsigned char)
994 vec_sel((vector unsigned long)shmask,
995 (vector unsigned long)mask, shmask);
996 invalid_mask = (vector unsigned char)
997 vec_or((vector unsigned long)invalid_mask,
998 (vector unsigned long)mask);
1000 /* D.3 check error in opcode. */
1001 opcode = (vector unsigned char)
1002 vec_cmpeq((vector unsigned int)resp_err_check,
1003 (vector unsigned int)opcode);
1004 opcode = (vector unsigned char)
1005 vec_packs((vector unsigned int)opcode,
1006 (vector unsigned int)zero);
1007 opcode = (vector unsigned char)
1008 vec_andc((vector unsigned long)opcode,
1009 (vector unsigned long)invalid_mask);
1011 /* D.4 mark if any error is set */
1012 *err |= ((vector unsigned long)opcode)[0];
1014 /* D.5 fill in mbuf - rearm_data and packet_type. */
1015 rxq_cq_to_ptype_oflags_v(rxq, cqes, opcode, &pkts[pos]);
1016 if (rxq->hw_timestamp) {
1017 pkts[pos]->timestamp =
1018 rte_be_to_cpu_64(cq[pos].timestamp);
1019 pkts[pos + 1]->timestamp =
1020 rte_be_to_cpu_64(cq[pos + p1].timestamp);
1021 pkts[pos + 2]->timestamp =
1022 rte_be_to_cpu_64(cq[pos + p2].timestamp);
1023 pkts[pos + 3]->timestamp =
1024 rte_be_to_cpu_64(cq[pos + p3].timestamp);
1026 if (rte_flow_dynf_metadata_avail()) {
1027 uint64_t flag = rte_flow_dynf_metadata_mask;
1028 int offs = rte_flow_dynf_metadata_offs;
1031 /* This code is subject for futher optimization. */
1032 metadata = cq[pos].flow_table_metadata;
1033 *RTE_MBUF_DYNFIELD(pkts[pos], offs, uint32_t *) =
1035 pkts[pos]->ol_flags |= metadata ? flag : 0ULL;
1036 metadata = cq[pos + 1].flow_table_metadata;
1037 *RTE_MBUF_DYNFIELD(pkts[pos + 1], offs, uint32_t *) =
1039 pkts[pos + 1]->ol_flags |= metadata ? flag : 0ULL;
1040 metadata = cq[pos + 2].flow_table_metadata;
1041 *RTE_MBUF_DYNFIELD(pkts[pos + 2], offs, uint32_t *) =
1043 pkts[pos + 2]->ol_flags |= metadata ? flag : 0ULL;
1044 metadata = cq[pos + 3].flow_table_metadata;
1045 *RTE_MBUF_DYNFIELD(pkts[pos + 3], offs, uint32_t *) =
1047 pkts[pos + 3]->ol_flags |= metadata ? flag : 0ULL;
1049 #ifdef MLX5_PMD_SOFT_COUNTERS
1050 /* Add up received bytes count. */
1051 byte_cnt = vec_perm(op_own, zero, len_shuf_mask);
1052 byte_cnt = (vector unsigned char)
1053 vec_andc((vector unsigned long)byte_cnt,
1054 (vector unsigned long)invalid_mask);
1055 left = vec_perm((vector unsigned short)byte_cnt,
1056 (vector unsigned short)zero, lower_half);
1057 right = vec_perm((vector unsigned short)byte_cnt,
1058 (vector unsigned short)zero, upper_half);
1059 byte_cnt = (vector unsigned char)vec_add(left, right);
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 rcvd_byte += ((vector unsigned long)byte_cnt)[0];
1069 * Break the loop unless more valid CQE is expected, or if
1070 * there's a compressed CQE.
1072 if (n != MLX5_VPMD_DESCS_PER_LOOP)
1075 /* If no new CQE seen, return without updating cq_db. */
1076 if (unlikely(!nocmp_n && comp_idx == MLX5_VPMD_DESCS_PER_LOOP))
1078 /* Update the consumer indexes for non-compressed CQEs. */
1079 MLX5_ASSERT(nocmp_n <= pkts_n);
1080 rxq->cq_ci += nocmp_n;
1081 rxq->rq_pi += nocmp_n;
1082 rcvd_pkt += nocmp_n;
1083 #ifdef MLX5_PMD_SOFT_COUNTERS
1084 rxq->stats.ipackets += nocmp_n;
1085 rxq->stats.ibytes += rcvd_byte;
1087 /* Decompress the last CQE if compressed. */
1088 if (comp_idx < MLX5_VPMD_DESCS_PER_LOOP && comp_idx == n) {
1089 MLX5_ASSERT(comp_idx == (nocmp_n % MLX5_VPMD_DESCS_PER_LOOP));
1091 rxq_cq_decompress_v(rxq, &cq[nocmp_n], &elts[nocmp_n]);
1092 /* Return more packets if needed. */
1093 if (nocmp_n < pkts_n) {
1094 uint16_t n = rxq->decompressed;
1096 n = RTE_MIN(n, pkts_n - nocmp_n);
1097 rxq_copy_mbuf_v(rxq, &pkts[nocmp_n], n);
1100 rxq->decompressed -= n;
1103 rte_compiler_barrier();
1104 *rxq->cq_db = rte_cpu_to_be_32(rxq->cq_ci);
1108 #endif /* RTE_PMD_MLX5_RXTX_VEC_ALTIVEC_H_ */