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 if (!(pos & 0x7) && pos + 8 < mcqe_n)
159 rte_prefetch0((void *)(cq + pos + 8));
161 /* A.1 load mCQEs into a 128bit register. */
162 mcqe1 = (vector unsigned char)vec_vsx_ld(0,
163 (signed int const *)&mcq[pos % 8]);
164 mcqe2 = (vector unsigned char)vec_vsx_ld(0,
165 (signed int const *)&mcq[pos % 8 + 2]);
167 /* B.1 store rearm data to mbuf. */
168 *(vector unsigned char *)
169 &elts[pos]->rearm_data = rearm;
170 *(vector unsigned char *)
171 &elts[pos + 1]->rearm_data = rearm;
173 /* C.1 combine data from mCQEs with rx_descriptor_fields1. */
174 rxdf1 = vec_perm(mcqe1, zero, shuf_mask1);
175 rxdf2 = vec_perm(mcqe1, zero, shuf_mask2);
176 rxdf1 = (vector unsigned char)
177 ((vector unsigned short)rxdf1 -
178 (vector unsigned short)crc_adj);
179 rxdf2 = (vector unsigned char)
180 ((vector unsigned short)rxdf2 -
181 (vector unsigned short)crc_adj);
182 rxdf1 = (vector unsigned char)
183 vec_sel((vector unsigned short)rxdf1,
184 (vector unsigned short)rxdf, rxdf_sel_mask);
185 rxdf2 = (vector unsigned char)
186 vec_sel((vector unsigned short)rxdf2,
187 (vector unsigned short)rxdf, rxdf_sel_mask);
189 /* D.1 store rx_descriptor_fields1. */
190 *(vector unsigned char *)
191 &elts[pos]->rx_descriptor_fields1 = rxdf1;
192 *(vector unsigned char *)
193 &elts[pos + 1]->rx_descriptor_fields1 = rxdf2;
195 /* B.1 store rearm data to mbuf. */
196 *(vector unsigned char *)
197 &elts[pos + 2]->rearm_data = rearm;
198 *(vector unsigned char *)
199 &elts[pos + 3]->rearm_data = rearm;
201 /* C.1 combine data from mCQEs with rx_descriptor_fields1. */
202 rxdf1 = vec_perm(mcqe2, zero, shuf_mask1);
203 rxdf2 = vec_perm(mcqe2, zero, shuf_mask2);
204 rxdf1 = (vector unsigned char)
205 ((vector unsigned short)rxdf1 -
206 (vector unsigned short)crc_adj);
207 rxdf2 = (vector unsigned char)
208 ((vector unsigned short)rxdf2 -
209 (vector unsigned short)crc_adj);
210 rxdf1 = (vector unsigned char)
211 vec_sel((vector unsigned short)rxdf1,
212 (vector unsigned short)rxdf, rxdf_sel_mask);
213 rxdf2 = (vector unsigned char)
214 vec_sel((vector unsigned short)rxdf2,
215 (vector unsigned short)rxdf, rxdf_sel_mask);
217 /* D.1 store rx_descriptor_fields1. */
218 *(vector unsigned char *)
219 &elts[pos + 2]->rx_descriptor_fields1 = rxdf1;
220 *(vector unsigned char *)
221 &elts[pos + 3]->rx_descriptor_fields1 = rxdf2;
223 #ifdef MLX5_PMD_SOFT_COUNTERS
224 invalid_mask = (vector unsigned char)(vector unsigned long){
225 (mcqe_n - pos) * sizeof(uint16_t) * 8, 0};
228 vec_splat((vector unsigned long)invalid_mask, 0);
229 shmask = vec_cmpgt(shmax, lshift);
230 invalid_mask = (vector unsigned char)
231 vec_sl((vector unsigned long)ones, lshift);
232 invalid_mask = (vector unsigned char)
233 vec_sel((vector unsigned long)shmask,
234 (vector unsigned long)invalid_mask, shmask);
236 mcqe1 = (vector unsigned char)
237 vec_sro((vector unsigned short)mcqe1,
238 (vector unsigned char){32}),
239 byte_cnt = (vector unsigned char)
240 vec_sel((vector unsigned short)mcqe1,
241 (vector unsigned short)mcqe2, mcqe_sel_mask);
242 byte_cnt = vec_perm(byte_cnt, zero, len_shuf_mask);
243 byte_cnt = (vector unsigned char)
244 vec_andc((vector unsigned long)byte_cnt,
245 (vector unsigned long)invalid_mask);
246 left = vec_perm((vector unsigned short)byte_cnt,
247 (vector unsigned short)zero, lower_half);
248 right = vec_perm((vector unsigned short)byte_cnt,
249 (vector unsigned short)zero, upper_half);
250 byte_cnt = (vector unsigned char)vec_add(left, right);
251 left = vec_perm((vector unsigned short)byte_cnt,
252 (vector unsigned short)zero, lower_half);
253 right = vec_perm((vector unsigned short)byte_cnt,
254 (vector unsigned short)zero, upper_half);
255 byte_cnt = (vector unsigned char)vec_add(left, right);
256 rcvd_byte += ((vector unsigned long)byte_cnt)[0];
260 /* E.1 store flow tag (rte_flow mark). */
261 elts[pos]->hash.fdir.hi = flow_tag;
262 elts[pos + 1]->hash.fdir.hi = flow_tag;
263 elts[pos + 2]->hash.fdir.hi = flow_tag;
264 elts[pos + 3]->hash.fdir.hi = flow_tag;
267 pos += MLX5_VPMD_DESCS_PER_LOOP;
268 /* Move to next CQE and invalidate consumed CQEs. */
269 if (!(pos & 0x7) && pos < mcqe_n) {
270 mcq = (void *)&(cq + pos)->pkt_info;
271 for (i = 0; i < 8; ++i)
272 cq[inv++].op_own = MLX5_CQE_INVALIDATE;
276 /* Invalidate the rest of CQEs. */
277 for (; inv < mcqe_n; ++inv)
278 cq[inv].op_own = MLX5_CQE_INVALIDATE;
280 #ifdef MLX5_PMD_SOFT_COUNTERS
281 rxq->stats.ipackets += mcqe_n;
282 rxq->stats.ibytes += rcvd_byte;
285 rxq->cq_ci += mcqe_n;
290 * Calculate packet type and offload flag for mbuf and store it.
293 * Pointer to RX queue structure.
295 * Array of four 16bytes completions extracted from the original completion
298 * Opcode vector having responder error status. Each field is 4B.
300 * Pointer to array of packets to be filled.
303 rxq_cq_to_ptype_oflags_v(struct mlx5_rxq_data *rxq,
304 vector unsigned char cqes[4], vector unsigned char op_err,
305 struct rte_mbuf **pkts)
307 vector unsigned char pinfo0, pinfo1;
308 vector unsigned char pinfo, ptype;
309 vector unsigned char ol_flags = (vector unsigned char)
310 (vector unsigned int){
311 rxq->rss_hash * PKT_RX_RSS_HASH |
312 rxq->hw_timestamp * PKT_RX_TIMESTAMP,
313 rxq->rss_hash * PKT_RX_RSS_HASH |
314 rxq->hw_timestamp * PKT_RX_TIMESTAMP,
315 rxq->rss_hash * PKT_RX_RSS_HASH |
316 rxq->hw_timestamp * PKT_RX_TIMESTAMP,
317 rxq->rss_hash * PKT_RX_RSS_HASH |
318 rxq->hw_timestamp * PKT_RX_TIMESTAMP};
319 vector unsigned char cv_flags;
320 const vector unsigned char zero = (vector unsigned char){0};
321 const vector unsigned char ptype_mask =
322 (vector unsigned char)(vector unsigned int){
323 0x0000fd06, 0x0000fd06, 0x0000fd06, 0x0000fd06};
324 const vector unsigned char ptype_ol_mask =
325 (vector unsigned char)(vector unsigned int){
326 0x00000106, 0x00000106, 0x00000106, 0x00000106};
327 const vector unsigned char pinfo_mask =
328 (vector unsigned char)(vector unsigned int){
329 0x00000003, 0x00000003, 0x00000003, 0x00000003};
330 const vector unsigned char cv_flag_sel = (vector unsigned char){
331 0, (uint8_t)(PKT_RX_VLAN | PKT_RX_VLAN_STRIPPED),
332 (uint8_t)(PKT_RX_IP_CKSUM_GOOD >> 1), 0,
333 (uint8_t)(PKT_RX_L4_CKSUM_GOOD >> 1), 0,
334 (uint8_t)((PKT_RX_IP_CKSUM_GOOD | PKT_RX_L4_CKSUM_GOOD) >> 1),
335 0, 0, 0, 0, 0, 0, 0, 0, 0};
336 const vector unsigned char cv_mask =
337 (vector unsigned char)(vector unsigned int){
338 PKT_RX_IP_CKSUM_GOOD | PKT_RX_L4_CKSUM_GOOD |
339 PKT_RX_VLAN | PKT_RX_VLAN_STRIPPED,
340 PKT_RX_IP_CKSUM_GOOD | PKT_RX_L4_CKSUM_GOOD |
341 PKT_RX_VLAN | PKT_RX_VLAN_STRIPPED,
342 PKT_RX_IP_CKSUM_GOOD | PKT_RX_L4_CKSUM_GOOD |
343 PKT_RX_VLAN | PKT_RX_VLAN_STRIPPED,
344 PKT_RX_IP_CKSUM_GOOD | PKT_RX_L4_CKSUM_GOOD |
345 PKT_RX_VLAN | PKT_RX_VLAN_STRIPPED};
346 const vector unsigned char mbuf_init =
347 (vector unsigned char)vec_vsx_ld
348 (0, (vector unsigned char *)&rxq->mbuf_initializer);
349 const vector unsigned short rearm_sel_mask =
350 (vector unsigned short){0, 0, 0, 0, 0xffff, 0xffff, 0, 0};
351 vector unsigned char rearm0, rearm1, rearm2, rearm3;
352 uint8_t pt_idx0, pt_idx1, pt_idx2, pt_idx3;
354 /* Extract pkt_info field. */
355 pinfo0 = (vector unsigned char)
356 vec_mergeh((vector unsigned int)cqes[0],
357 (vector unsigned int)cqes[1]);
358 pinfo1 = (vector unsigned char)
359 vec_mergeh((vector unsigned int)cqes[2],
360 (vector unsigned int)cqes[3]);
361 pinfo = (vector unsigned char)
362 vec_mergeh((vector unsigned long)pinfo0,
363 (vector unsigned long)pinfo1);
365 /* Extract hdr_type_etc field. */
366 pinfo0 = (vector unsigned char)
367 vec_mergel((vector unsigned int)cqes[0],
368 (vector unsigned int)cqes[1]);
369 pinfo1 = (vector unsigned char)
370 vec_mergel((vector unsigned int)cqes[2],
371 (vector unsigned int)cqes[3]);
372 ptype = (vector unsigned char)
373 vec_mergeh((vector unsigned long)pinfo0,
374 (vector unsigned long)pinfo1);
377 const vector unsigned char pinfo_ft_mask =
378 (vector unsigned char)(vector unsigned int){
379 0xffffff00, 0xffffff00, 0xffffff00, 0xffffff00};
380 const vector unsigned char fdir_flags =
381 (vector unsigned char)(vector unsigned int){
382 PKT_RX_FDIR, PKT_RX_FDIR,
383 PKT_RX_FDIR, PKT_RX_FDIR};
384 vector unsigned char fdir_id_flags =
385 (vector unsigned char)(vector unsigned int){
386 PKT_RX_FDIR_ID, PKT_RX_FDIR_ID,
387 PKT_RX_FDIR_ID, PKT_RX_FDIR_ID};
388 vector unsigned char flow_tag, invalid_mask;
390 flow_tag = (vector unsigned char)
391 vec_and((vector unsigned long)pinfo,
392 (vector unsigned long)pinfo_ft_mask);
394 /* Check if flow tag is non-zero then set PKT_RX_FDIR. */
395 invalid_mask = (vector unsigned char)
396 vec_cmpeq((vector unsigned int)flow_tag,
397 (vector unsigned int)zero);
398 ol_flags = (vector unsigned char)
399 vec_or((vector unsigned long)ol_flags,
400 (vector unsigned long)
401 vec_andc((vector unsigned long)fdir_flags,
402 (vector unsigned long)invalid_mask));
404 /* Mask out invalid entries. */
405 fdir_id_flags = (vector unsigned char)
406 vec_andc((vector unsigned long)fdir_id_flags,
407 (vector unsigned long)invalid_mask);
409 /* Check if flow tag MLX5_FLOW_MARK_DEFAULT. */
410 ol_flags = (vector unsigned char)
411 vec_or((vector unsigned long)ol_flags,
412 (vector unsigned long)
413 vec_andc((vector unsigned long)fdir_id_flags,
414 (vector unsigned long)
415 vec_cmpeq((vector unsigned int)flow_tag,
416 (vector unsigned int)pinfo_ft_mask)));
419 * Merge the two fields to generate the following:
423 * bit[11:10] = l3_hdr_type
424 * bit[14:12] = l4_hdr_type
427 * bit[17] = outer_l3_type
429 ptype = (vector unsigned char)
430 vec_and((vector unsigned long)ptype,
431 (vector unsigned long)ptype_mask);
432 pinfo = (vector unsigned char)
433 vec_and((vector unsigned long)pinfo,
434 (vector unsigned long)pinfo_mask);
435 pinfo = (vector unsigned char)
436 vec_sl((vector unsigned int)pinfo,
437 (vector unsigned int){16, 16, 16, 16});
439 /* Make pinfo has merged fields for ol_flags calculation. */
440 pinfo = (vector unsigned char)
441 vec_or((vector unsigned long)ptype,
442 (vector unsigned long)pinfo);
443 ptype = (vector unsigned char)
444 vec_sr((vector unsigned int)pinfo,
445 (vector unsigned int){10, 10, 10, 10});
446 ptype = (vector unsigned char)
447 vec_packs((vector unsigned int)ptype,
448 (vector unsigned int)zero);
450 /* Errored packets will have RTE_PTYPE_ALL_MASK. */
451 op_err = (vector unsigned char)
452 vec_sr((vector unsigned short)op_err,
453 (vector unsigned short){8, 8, 8, 8, 8, 8, 8, 8});
454 ptype = (vector unsigned char)
455 vec_or((vector unsigned long)ptype,
456 (vector unsigned long)op_err);
458 pt_idx0 = (uint8_t)((vector unsigned char)ptype)[0];
459 pt_idx1 = (uint8_t)((vector unsigned char)ptype)[2];
460 pt_idx2 = (uint8_t)((vector unsigned char)ptype)[4];
461 pt_idx3 = (uint8_t)((vector unsigned char)ptype)[6];
463 pkts[0]->packet_type = mlx5_ptype_table[pt_idx0] |
464 !!(pt_idx0 & (1 << 6)) * rxq->tunnel;
465 pkts[1]->packet_type = mlx5_ptype_table[pt_idx1] |
466 !!(pt_idx1 & (1 << 6)) * rxq->tunnel;
467 pkts[2]->packet_type = mlx5_ptype_table[pt_idx2] |
468 !!(pt_idx2 & (1 << 6)) * rxq->tunnel;
469 pkts[3]->packet_type = mlx5_ptype_table[pt_idx3] |
470 !!(pt_idx3 & (1 << 6)) * rxq->tunnel;
472 /* Fill flags for checksum and VLAN. */
473 pinfo = (vector unsigned char)
474 vec_and((vector unsigned long)pinfo,
475 (vector unsigned long)ptype_ol_mask);
476 pinfo = vec_perm(cv_flag_sel, zero, pinfo);
478 /* Locate checksum flags at byte[2:1] and merge with VLAN flags. */
479 cv_flags = (vector unsigned char)
480 vec_sl((vector unsigned int)pinfo,
481 (vector unsigned int){9, 9, 9, 9});
482 cv_flags = (vector unsigned char)
483 vec_or((vector unsigned long)pinfo,
484 (vector unsigned long)cv_flags);
486 /* Move back flags to start from byte[0]. */
487 cv_flags = (vector unsigned char)
488 vec_sr((vector unsigned int)cv_flags,
489 (vector unsigned int){8, 8, 8, 8});
491 /* Mask out garbage bits. */
492 cv_flags = (vector unsigned char)
493 vec_and((vector unsigned long)cv_flags,
494 (vector unsigned long)cv_mask);
496 /* Merge to ol_flags. */
497 ol_flags = (vector unsigned char)
498 vec_or((vector unsigned long)ol_flags,
499 (vector unsigned long)cv_flags);
501 /* Merge mbuf_init and ol_flags. */
502 rearm0 = (vector unsigned char)
503 vec_sel((vector unsigned short)mbuf_init,
504 (vector unsigned short)
505 vec_slo((vector unsigned short)ol_flags,
506 (vector unsigned char){64}), rearm_sel_mask);
507 rearm1 = (vector unsigned char)
508 vec_sel((vector unsigned short)mbuf_init,
509 (vector unsigned short)
510 vec_slo((vector unsigned short)ol_flags,
511 (vector unsigned char){32}), rearm_sel_mask);
512 rearm2 = (vector unsigned char)
513 vec_sel((vector unsigned short)mbuf_init,
514 (vector unsigned short)ol_flags, rearm_sel_mask);
515 rearm3 = (vector unsigned char)
516 vec_sel((vector unsigned short)mbuf_init,
517 (vector unsigned short)
518 vec_sro((vector unsigned short)ol_flags,
519 (vector unsigned char){32}), rearm_sel_mask);
521 /* Write 8B rearm_data and 8B ol_flags. */
522 vec_vsx_st(rearm0, 0,
523 (vector unsigned char *)&pkts[0]->rearm_data);
524 vec_vsx_st(rearm1, 0,
525 (vector unsigned char *)&pkts[1]->rearm_data);
526 vec_vsx_st(rearm2, 0,
527 (vector unsigned char *)&pkts[2]->rearm_data);
528 vec_vsx_st(rearm3, 0,
529 (vector unsigned char *)&pkts[3]->rearm_data);
534 * Receive burst of packets. An errored completion also consumes a mbuf, but the
535 * packet_type is set to be RTE_PTYPE_ALL_MASK. Marked mbufs should be freed
536 * before returning to application.
539 * Pointer to RX queue structure.
541 * Array to store received packets.
543 * Maximum number of packets in array.
545 * Pointer to a flag. Set non-zero value if pkts array has at least one error
549 * Number of packets received including errors (<= pkts_n).
551 static inline uint16_t
552 rxq_burst_v(struct mlx5_rxq_data *rxq, struct rte_mbuf **pkts, uint16_t pkts_n,
555 const uint16_t q_n = 1 << rxq->cqe_n;
556 const uint16_t q_mask = q_n - 1;
557 volatile struct mlx5_cqe *cq;
558 struct rte_mbuf **elts;
562 uint64_t comp_idx = MLX5_VPMD_DESCS_PER_LOOP;
563 uint16_t nocmp_n = 0;
564 uint16_t rcvd_pkt = 0;
565 unsigned int cq_idx = rxq->cq_ci & q_mask;
566 unsigned int elts_idx;
567 unsigned int ownership = !!(rxq->cq_ci & (q_mask + 1));
568 const vector unsigned char zero = (vector unsigned char){0};
569 const vector unsigned char ones = vec_splat_u8(-1);
570 const vector unsigned char owner_check =
571 (vector unsigned char)(vector unsigned long){
572 0x0100000001000000LL, 0x0100000001000000LL};
573 const vector unsigned char opcode_check =
574 (vector unsigned char)(vector unsigned long){
575 0xf0000000f0000000LL, 0xf0000000f0000000LL};
576 const vector unsigned char format_check =
577 (vector unsigned char)(vector unsigned long){
578 0x0c0000000c000000LL, 0x0c0000000c000000LL};
579 const vector unsigned char resp_err_check =
580 (vector unsigned char)(vector unsigned long){
581 0xe0000000e0000000LL, 0xe0000000e0000000LL};
582 #ifdef MLX5_PMD_SOFT_COUNTERS
583 uint32_t rcvd_byte = 0;
584 /* Mask to shuffle byte_cnt to add up stats. Do bswap16 for all. */
585 const vector unsigned char len_shuf_mask = (vector unsigned char){
591 /* Mask to shuffle from extracted CQE to mbuf. */
592 const vector unsigned char shuf_mask = (vector unsigned char){
593 5, 4, /* bswap16, pkt_len */
594 -1, -1, /* zero out 2nd half of pkt_len */
595 5, 4, /* bswap16, data_len */
596 11, 10, /* bswap16, vlan+tci */
597 15, 14, 13, 12, /* bswap32, rss */
598 1, 2, 3, -1}; /* fdir.hi */
599 /* Mask to blend from the last Qword to the first DQword. */
600 /* Mask to blend from the last Qword to the first DQword. */
601 const vector unsigned char blend_mask = (vector unsigned char){
606 const vector unsigned char crc_adj =
607 (vector unsigned char)(vector unsigned short){
608 rxq->crc_present * RTE_ETHER_CRC_LEN, 0,
609 rxq->crc_present * RTE_ETHER_CRC_LEN, 0, 0, 0, 0, 0};
610 const vector unsigned char flow_mark_adj =
611 (vector unsigned char)(vector unsigned int){
612 0, 0, 0, rxq->mark * (-1)};
613 const vector unsigned short cqe_sel_mask1 =
614 (vector unsigned short){0, 0, 0, 0, 0xffff, 0xffff, 0, 0};
615 const vector unsigned short cqe_sel_mask2 =
616 (vector unsigned short){0, 0, 0xffff, 0, 0, 0, 0, 0};
618 MLX5_ASSERT(rxq->sges_n == 0);
619 MLX5_ASSERT(rxq->cqe_n == rxq->elts_n);
620 cq = &(*rxq->cqes)[cq_idx];
622 rte_prefetch0(cq + 1);
623 rte_prefetch0(cq + 2);
624 rte_prefetch0(cq + 3);
625 pkts_n = RTE_MIN(pkts_n, MLX5_VPMD_RX_MAX_BURST);
627 repl_n = q_n - (rxq->rq_ci - rxq->rq_pi);
628 if (repl_n >= rxq->rq_repl_thresh)
629 mlx5_rx_replenish_bulk_mbuf(rxq, repl_n);
630 /* See if there're unreturned mbufs from compressed CQE. */
631 rcvd_pkt = rxq->decompressed;
633 rcvd_pkt = RTE_MIN(rcvd_pkt, pkts_n);
634 rxq_copy_mbuf_v(rxq, pkts, rcvd_pkt);
635 rxq->rq_pi += rcvd_pkt;
636 rxq->decompressed -= rcvd_pkt;
639 elts_idx = rxq->rq_pi & q_mask;
640 elts = &(*rxq->elts)[elts_idx];
641 /* Not to overflow pkts array. */
642 pkts_n = RTE_ALIGN_FLOOR(pkts_n - rcvd_pkt, MLX5_VPMD_DESCS_PER_LOOP);
643 /* Not to cross queue end. */
644 pkts_n = RTE_MIN(pkts_n, q_n - elts_idx);
645 pkts_n = RTE_MIN(pkts_n, q_n - cq_idx);
648 /* At this point, there shouldn't be any remaining packets. */
649 MLX5_ASSERT(rxq->decompressed == 0);
652 * A. load first Qword (8bytes) in one loop.
653 * B. copy 4 mbuf pointers from elts ring to returing pkts.
654 * C. load remaining CQE data and extract necessary fields.
655 * Final 16bytes cqes[] extracted from original 64bytes CQE has the
656 * following structure:
659 * uint8_t flow_tag[3];
663 * uint16_t hdr_type_etc;
664 * uint16_t vlan_info;
665 * uint32_t rx_has_res;
669 * F. find compressed CQE.
673 pos += MLX5_VPMD_DESCS_PER_LOOP) {
674 vector unsigned char cqes[MLX5_VPMD_DESCS_PER_LOOP];
675 vector unsigned char cqe_tmp1, cqe_tmp2;
676 vector unsigned char pkt_mb0, pkt_mb1, pkt_mb2, pkt_mb3;
677 vector unsigned char op_own, op_own_tmp1, op_own_tmp2;
678 vector unsigned char opcode, owner_mask, invalid_mask;
679 vector unsigned char comp_mask;
680 vector unsigned char mask;
681 #ifdef MLX5_PMD_SOFT_COUNTERS
682 const vector unsigned char lower_half = {
683 0, 1, 4, 5, 8, 9, 12, 13,
684 16, 17, 20, 21, 24, 25, 28, 29};
685 const vector unsigned char upper_half = {
686 2, 3, 6, 7, 10, 11, 14, 15,
687 18, 19, 22, 23, 26, 27, 30, 31};
688 const vector unsigned long shmax = {64, 64};
689 vector unsigned char byte_cnt;
690 vector unsigned short left, right;
691 vector unsigned long lshift;
692 vector __attribute__((altivec(bool__)))
693 unsigned long shmask;
695 vector unsigned char mbp1, mbp2;
696 vector unsigned char p =
697 (vector unsigned char)(vector unsigned short){
698 0, 1, 2, 3, 0, 0, 0, 0};
699 unsigned int p1, p2, p3;
701 /* Prefetch next 4 CQEs. */
702 if (pkts_n - pos >= 2 * MLX5_VPMD_DESCS_PER_LOOP) {
703 rte_prefetch0(&cq[pos + MLX5_VPMD_DESCS_PER_LOOP]);
704 rte_prefetch0(&cq[pos + MLX5_VPMD_DESCS_PER_LOOP + 1]);
705 rte_prefetch0(&cq[pos + MLX5_VPMD_DESCS_PER_LOOP + 2]);
706 rte_prefetch0(&cq[pos + MLX5_VPMD_DESCS_PER_LOOP + 3]);
709 /* A.0 do not cross the end of CQ. */
710 mask = (vector unsigned char)(vector unsigned long){
711 (pkts_n - pos) * sizeof(uint16_t) * 8, 0};
714 vector unsigned long lshift;
715 vector __attribute__((altivec(bool__)))
716 unsigned long shmask;
717 const vector unsigned long shmax = {64, 64};
719 lshift = vec_splat((vector unsigned long)mask, 0);
720 shmask = vec_cmpgt(shmax, lshift);
721 mask = (vector unsigned char)
722 vec_sl((vector unsigned long)ones, lshift);
723 mask = (vector unsigned char)
724 vec_sel((vector unsigned long)shmask,
725 (vector unsigned long)mask, shmask);
728 p = (vector unsigned char)
729 vec_andc((vector unsigned long)p,
730 (vector unsigned long)mask);
733 p3 = (unsigned int)((vector unsigned short)p)[3];
734 cqes[3] = (vector unsigned char)(vector unsigned long){
735 *(__attribute__((__aligned__(8))) unsigned long *)
736 &cq[pos + p3].sop_drop_qpn, 0LL};
737 rte_compiler_barrier();
739 p2 = (unsigned int)((vector unsigned short)p)[2];
740 cqes[2] = (vector unsigned char)(vector unsigned long){
741 *(__attribute__((__aligned__(8))) unsigned long *)
742 &cq[pos + p2].sop_drop_qpn, 0LL};
743 rte_compiler_barrier();
745 /* B.1 load mbuf pointers. */
746 mbp1 = (vector unsigned char)vec_vsx_ld(0,
747 (signed int const *)&elts[pos]);
748 mbp2 = (vector unsigned char)vec_vsx_ld(0,
749 (signed int const *)&elts[pos + 2]);
751 /* A.1 load a block having op_own. */
752 p1 = (unsigned int)((vector unsigned short)p)[1];
753 cqes[1] = (vector unsigned char)(vector unsigned long){
754 *(__attribute__((__aligned__(8))) unsigned long *)
755 &cq[pos + p1].sop_drop_qpn, 0LL};
756 rte_compiler_barrier();
758 cqes[0] = (vector unsigned char)(vector unsigned long){
759 *(__attribute__((__aligned__(8))) unsigned long *)
760 &cq[pos].sop_drop_qpn, 0LL};
761 rte_compiler_barrier();
763 /* B.2 copy mbuf pointers. */
764 *(vector unsigned char *)&pkts[pos] = mbp1;
765 *(vector unsigned char *)&pkts[pos + 2] = mbp2;
768 /* C.1 load remaining CQE data and extract necessary fields. */
769 cqe_tmp2 = *(vector unsigned char *)
770 &cq[pos + p3].pkt_info;
771 cqe_tmp1 = *(vector unsigned char *)
772 &cq[pos + p2].pkt_info;
773 cqes[3] = vec_sel(cqes[3], cqe_tmp2, blend_mask);
774 cqes[2] = vec_sel(cqes[2], cqe_tmp1, blend_mask);
775 cqe_tmp2 = (vector unsigned char)vec_vsx_ld(0,
776 (signed int const *)&cq[pos + p3].csum);
777 cqe_tmp1 = (vector unsigned char)vec_vsx_ld(0,
778 (signed int const *)&cq[pos + p2].csum);
779 cqes[3] = (vector unsigned char)
780 vec_sel((vector unsigned short)cqes[3],
781 (vector unsigned short)cqe_tmp2, cqe_sel_mask1);
782 cqes[2] = (vector unsigned char)
783 vec_sel((vector unsigned short)cqes[2],
784 (vector unsigned short)cqe_tmp1, cqe_sel_mask1);
785 cqe_tmp2 = (vector unsigned char)(vector unsigned long){
786 *(__attribute__((__aligned__(8))) unsigned long *)
787 &cq[pos + p3].rsvd3[9], 0LL};
788 cqe_tmp1 = (vector unsigned char)(vector unsigned long){
789 *(__attribute__((__aligned__(8))) unsigned long *)
790 &cq[pos + p2].rsvd3[9], 0LL};
791 cqes[3] = (vector unsigned char)
792 vec_sel((vector unsigned short)cqes[3],
793 (vector unsigned short)cqe_tmp2,
794 (vector unsigned short)cqe_sel_mask2);
795 cqes[2] = (vector unsigned char)
796 vec_sel((vector unsigned short)cqes[2],
797 (vector unsigned short)cqe_tmp1,
798 (vector unsigned short)cqe_sel_mask2);
800 /* C.2 generate final structure for mbuf with swapping bytes. */
801 pkt_mb3 = vec_perm(cqes[3], zero, shuf_mask);
802 pkt_mb2 = vec_perm(cqes[2], zero, shuf_mask);
804 /* C.3 adjust CRC length. */
805 pkt_mb3 = (vector unsigned char)
806 ((vector unsigned short)pkt_mb3 -
807 (vector unsigned short)crc_adj);
808 pkt_mb2 = (vector unsigned char)
809 ((vector unsigned short)pkt_mb2 -
810 (vector unsigned short)crc_adj);
812 /* C.4 adjust flow mark. */
813 pkt_mb3 = (vector unsigned char)
814 ((vector unsigned int)pkt_mb3 +
815 (vector unsigned int)flow_mark_adj);
816 pkt_mb2 = (vector unsigned char)
817 ((vector unsigned int)pkt_mb2 +
818 (vector unsigned int)flow_mark_adj);
820 /* D.1 fill in mbuf - rx_descriptor_fields1. */
821 *(vector unsigned char *)
822 &pkts[pos + 3]->pkt_len = pkt_mb3;
823 *(vector unsigned char *)
824 &pkts[pos + 2]->pkt_len = pkt_mb2;
826 /* E.1 extract op_own field. */
827 op_own_tmp2 = (vector unsigned char)
828 vec_mergeh((vector unsigned int)cqes[2],
829 (vector unsigned int)cqes[3]);
831 /* C.1 load remaining CQE data and extract necessary fields. */
832 cqe_tmp2 = *(vector unsigned char *)
833 &cq[pos + p1].pkt_info;
834 cqe_tmp1 = *(vector unsigned char *)
836 cqes[1] = vec_sel(cqes[1], cqe_tmp2, blend_mask);
837 cqes[0] = vec_sel(cqes[0], cqe_tmp2, blend_mask);
838 cqe_tmp2 = (vector unsigned char)vec_vsx_ld(0,
839 (signed int const *)&cq[pos + p1].csum);
840 cqe_tmp1 = (vector unsigned char)vec_vsx_ld(0,
841 (signed int const *)&cq[pos].csum);
842 cqes[1] = (vector unsigned char)
843 vec_sel((vector unsigned short)cqes[1],
844 (vector unsigned short)cqe_tmp2, cqe_sel_mask1);
845 cqes[0] = (vector unsigned char)
846 vec_sel((vector unsigned short)cqes[0],
847 (vector unsigned short)cqe_tmp1, cqe_sel_mask1);
848 cqe_tmp2 = (vector unsigned char)(vector unsigned long){
849 *(__attribute__((__aligned__(8))) unsigned long *)
850 &cq[pos + p1].rsvd3[9], 0LL};
851 cqe_tmp1 = (vector unsigned char)(vector unsigned long){
852 *(__attribute__((__aligned__(8))) unsigned long *)
853 &cq[pos].rsvd3[9], 0LL};
854 cqes[1] = (vector unsigned char)
855 vec_sel((vector unsigned short)cqes[1],
856 (vector unsigned short)cqe_tmp2, cqe_sel_mask2);
857 cqes[0] = (vector unsigned char)
858 vec_sel((vector unsigned short)cqes[0],
859 (vector unsigned short)cqe_tmp1, cqe_sel_mask2);
861 /* C.2 generate final structure for mbuf with swapping bytes. */
862 pkt_mb1 = vec_perm(cqes[1], zero, shuf_mask);
863 pkt_mb0 = vec_perm(cqes[0], zero, shuf_mask);
865 /* C.3 adjust CRC length. */
866 pkt_mb1 = (vector unsigned char)
867 ((vector unsigned short)pkt_mb1 -
868 (vector unsigned short)crc_adj);
869 pkt_mb0 = (vector unsigned char)
870 ((vector unsigned short)pkt_mb0 -
871 (vector unsigned short)crc_adj);
873 /* C.4 adjust flow mark. */
874 pkt_mb1 = (vector unsigned char)
875 ((vector unsigned int)pkt_mb1 +
876 (vector unsigned int)flow_mark_adj);
877 pkt_mb0 = (vector unsigned char)
878 ((vector unsigned int)pkt_mb0 +
879 (vector unsigned int)flow_mark_adj);
881 /* E.1 extract op_own byte. */
882 op_own_tmp1 = (vector unsigned char)
883 vec_mergeh((vector unsigned int)cqes[0],
884 (vector unsigned int)cqes[1]);
885 op_own = (vector unsigned char)
886 vec_mergel((vector unsigned long)op_own_tmp1,
887 (vector unsigned long)op_own_tmp2);
889 /* D.1 fill in mbuf - rx_descriptor_fields1. */
890 *(vector unsigned char *)
891 &pkts[pos + 1]->pkt_len = pkt_mb1;
892 *(vector unsigned char *)
893 &pkts[pos]->pkt_len = pkt_mb0;
895 /* E.2 flip owner bit to mark CQEs from last round. */
896 owner_mask = (vector unsigned char)
897 vec_and((vector unsigned long)op_own,
898 (vector unsigned long)owner_check);
900 owner_mask = (vector unsigned char)
901 vec_xor((vector unsigned long)owner_mask,
902 (vector unsigned long)owner_check);
903 owner_mask = (vector unsigned char)
904 vec_cmpeq((vector unsigned int)owner_mask,
905 (vector unsigned int)owner_check);
906 owner_mask = (vector unsigned char)
907 vec_packs((vector unsigned int)owner_mask,
908 (vector unsigned int)zero);
910 /* E.3 get mask for invalidated CQEs. */
911 opcode = (vector unsigned char)
912 vec_and((vector unsigned long)op_own,
913 (vector unsigned long)opcode_check);
914 invalid_mask = (vector unsigned char)
915 vec_cmpeq((vector unsigned int)opcode_check,
916 (vector unsigned int)opcode);
917 invalid_mask = (vector unsigned char)
918 vec_packs((vector unsigned int)invalid_mask,
919 (vector unsigned int)zero);
921 /* E.4 mask out beyond boundary. */
922 invalid_mask = (vector unsigned char)
923 vec_or((vector unsigned long)invalid_mask,
924 (vector unsigned long)mask);
926 /* E.5 merge invalid_mask with invalid owner. */
927 invalid_mask = (vector unsigned char)
928 vec_or((vector unsigned long)invalid_mask,
929 (vector unsigned long)owner_mask);
931 /* F.1 find compressed CQE format. */
932 comp_mask = (vector unsigned char)
933 vec_and((vector unsigned long)op_own,
934 (vector unsigned long)format_check);
935 comp_mask = (vector unsigned char)
936 vec_cmpeq((vector unsigned int)comp_mask,
937 (vector unsigned int)format_check);
938 comp_mask = (vector unsigned char)
939 vec_packs((vector unsigned int)comp_mask,
940 (vector unsigned int)zero);
942 /* F.2 mask out invalid entries. */
943 comp_mask = (vector unsigned char)
944 vec_andc((vector unsigned long)comp_mask,
945 (vector unsigned long)invalid_mask);
946 comp_idx = ((vector unsigned long)comp_mask)[0];
948 /* F.3 get the first compressed CQE. */
949 comp_idx = comp_idx ? __builtin_ctzll(comp_idx) /
950 (sizeof(uint16_t) * 8) : MLX5_VPMD_DESCS_PER_LOOP;
952 /* E.6 mask out entries after the compressed CQE. */
953 mask = (vector unsigned char)(vector unsigned long){
954 (comp_idx * sizeof(uint16_t) * 8), 0};
955 lshift = vec_splat((vector unsigned long)mask, 0);
956 shmask = vec_cmpgt(shmax, lshift);
957 mask = (vector unsigned char)
958 vec_sl((vector unsigned long)ones, lshift);
959 mask = (vector unsigned char)
960 vec_sel((vector unsigned long)shmask,
961 (vector unsigned long)mask, shmask);
962 invalid_mask = (vector unsigned char)
963 vec_or((vector unsigned long)invalid_mask,
964 (vector unsigned long)mask);
966 /* E.7 count non-compressed valid CQEs. */
967 n = ((vector unsigned long)invalid_mask)[0];
968 n = n ? __builtin_ctzll(n) / (sizeof(uint16_t) * 8) :
969 MLX5_VPMD_DESCS_PER_LOOP;
972 /* D.2 get the final invalid mask. */
973 mask = (vector unsigned char)(vector unsigned long){
974 (n * sizeof(uint16_t) * 8), 0};
975 lshift = vec_splat((vector unsigned long)mask, 0);
976 shmask = vec_cmpgt(shmax, lshift);
977 mask = (vector unsigned char)
978 vec_sl((vector unsigned long)ones, lshift);
979 mask = (vector unsigned char)
980 vec_sel((vector unsigned long)shmask,
981 (vector unsigned long)mask, shmask);
982 invalid_mask = (vector unsigned char)
983 vec_or((vector unsigned long)invalid_mask,
984 (vector unsigned long)mask);
986 /* D.3 check error in opcode. */
987 opcode = (vector unsigned char)
988 vec_cmpeq((vector unsigned int)resp_err_check,
989 (vector unsigned int)opcode);
990 opcode = (vector unsigned char)
991 vec_packs((vector unsigned int)opcode,
992 (vector unsigned int)zero);
993 opcode = (vector unsigned char)
994 vec_andc((vector unsigned long)opcode,
995 (vector unsigned long)invalid_mask);
997 /* D.4 mark if any error is set */
998 *err |= ((vector unsigned long)opcode)[0];
1000 /* D.5 fill in mbuf - rearm_data and packet_type. */
1001 rxq_cq_to_ptype_oflags_v(rxq, cqes, opcode, &pkts[pos]);
1002 if (rxq->hw_timestamp) {
1003 pkts[pos]->timestamp =
1004 rte_be_to_cpu_64(cq[pos].timestamp);
1005 pkts[pos + 1]->timestamp =
1006 rte_be_to_cpu_64(cq[pos + p1].timestamp);
1007 pkts[pos + 2]->timestamp =
1008 rte_be_to_cpu_64(cq[pos + p2].timestamp);
1009 pkts[pos + 3]->timestamp =
1010 rte_be_to_cpu_64(cq[pos + p3].timestamp);
1012 if (rte_flow_dynf_metadata_avail()) {
1013 uint64_t flag = rte_flow_dynf_metadata_mask;
1014 int offs = rte_flow_dynf_metadata_offs;
1017 /* This code is subject for futher optimization. */
1018 metadata = cq[pos].flow_table_metadata;
1019 *RTE_MBUF_DYNFIELD(pkts[pos], offs, uint32_t *) =
1021 pkts[pos]->ol_flags |= metadata ? flag : 0ULL;
1022 metadata = cq[pos + 1].flow_table_metadata;
1023 *RTE_MBUF_DYNFIELD(pkts[pos + 1], offs, uint32_t *) =
1025 pkts[pos + 1]->ol_flags |= metadata ? flag : 0ULL;
1026 metadata = cq[pos + 2].flow_table_metadata;
1027 *RTE_MBUF_DYNFIELD(pkts[pos + 2], offs, uint32_t *) =
1029 pkts[pos + 2]->ol_flags |= metadata ? flag : 0ULL;
1030 metadata = cq[pos + 3].flow_table_metadata;
1031 *RTE_MBUF_DYNFIELD(pkts[pos + 3], offs, uint32_t *) =
1033 pkts[pos + 3]->ol_flags |= metadata ? flag : 0ULL;
1035 #ifdef MLX5_PMD_SOFT_COUNTERS
1036 /* Add up received bytes count. */
1037 byte_cnt = vec_perm(op_own, zero, len_shuf_mask);
1038 byte_cnt = (vector unsigned char)
1039 vec_andc((vector unsigned long)byte_cnt,
1040 (vector unsigned long)invalid_mask);
1041 left = vec_perm((vector unsigned short)byte_cnt,
1042 (vector unsigned short)zero, lower_half);
1043 right = vec_perm((vector unsigned short)byte_cnt,
1044 (vector unsigned short)zero, upper_half);
1045 byte_cnt = (vector unsigned char)vec_add(left, right);
1046 left = vec_perm((vector unsigned short)byte_cnt,
1047 (vector unsigned short)zero, lower_half);
1048 right = vec_perm((vector unsigned short)byte_cnt,
1049 (vector unsigned short)zero, upper_half);
1050 byte_cnt = (vector unsigned char)vec_add(left, right);
1051 rcvd_byte += ((vector unsigned long)byte_cnt)[0];
1055 * Break the loop unless more valid CQE is expected, or if
1056 * there's a compressed CQE.
1058 if (n != MLX5_VPMD_DESCS_PER_LOOP)
1061 /* If no new CQE seen, return without updating cq_db. */
1062 if (unlikely(!nocmp_n && comp_idx == MLX5_VPMD_DESCS_PER_LOOP))
1064 /* Update the consumer indexes for non-compressed CQEs. */
1065 MLX5_ASSERT(nocmp_n <= pkts_n);
1066 rxq->cq_ci += nocmp_n;
1067 rxq->rq_pi += nocmp_n;
1068 rcvd_pkt += nocmp_n;
1069 #ifdef MLX5_PMD_SOFT_COUNTERS
1070 rxq->stats.ipackets += nocmp_n;
1071 rxq->stats.ibytes += rcvd_byte;
1073 /* Decompress the last CQE if compressed. */
1074 if (comp_idx < MLX5_VPMD_DESCS_PER_LOOP && comp_idx == n) {
1075 MLX5_ASSERT(comp_idx == (nocmp_n % MLX5_VPMD_DESCS_PER_LOOP));
1077 rxq_cq_decompress_v(rxq, &cq[nocmp_n], &elts[nocmp_n]);
1078 /* Return more packets if needed. */
1079 if (nocmp_n < pkts_n) {
1080 uint16_t n = rxq->decompressed;
1082 n = RTE_MIN(n, pkts_n - nocmp_n);
1083 rxq_copy_mbuf_v(rxq, &pkts[nocmp_n], n);
1086 rxq->decompressed -= n;
1089 rte_compiler_barrier();
1090 *rxq->cq_db = rte_cpu_to_be_32(rxq->cq_ci);
1094 #endif /* RTE_PMD_MLX5_RXTX_VEC_ALTIVEC_H_ */