4 * Copyright 2017 6WIND S.A.
5 * Copyright 2017 Mellanox.
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38 #include <smmintrin.h>
41 /* ISO C doesn't support unnamed structs/unions, disabling -pedantic. */
43 #pragma GCC diagnostic ignored "-Wpedantic"
45 #include <infiniband/verbs.h>
46 #include <infiniband/mlx5_hw.h>
47 #include <infiniband/arch.h>
49 #pragma GCC diagnostic error "-Wpedantic"
53 #include <rte_mempool.h>
54 #include <rte_prefetch.h>
57 #include "mlx5_utils.h"
58 #include "mlx5_rxtx.h"
59 #include "mlx5_autoconf.h"
60 #include "mlx5_defs.h"
63 #ifndef __INTEL_COMPILER
64 #pragma GCC diagnostic ignored "-Wcast-qual"
68 * Fill in buffer descriptors in a multi-packet send descriptor.
71 * Pointer to TX queue structure.
73 * Pointer to buffer descriptor to be writen.
75 * Pointer to array of packets to be sent.
77 * Number of packets to be filled.
80 txq_wr_dseg_v(struct txq *txq, __m128i *dseg,
81 struct rte_mbuf **pkts, unsigned int n)
85 const __m128i shuf_mask_dseg =
86 _mm_set_epi8(8, 9, 10, 11, /* addr, bswap64 */
88 7, 6, 5, 4, /* lkey */
89 0, 1, 2, 3 /* length, bswap32 */);
90 #ifdef MLX5_PMD_SOFT_COUNTERS
94 for (pos = 0; pos < n; ++pos, ++dseg) {
96 struct rte_mbuf *pkt = pkts[pos];
98 addr = rte_pktmbuf_mtod(pkt, uintptr_t);
99 desc = _mm_set_epi32(addr >> 32,
101 mlx5_tx_mb2mr(txq, pkt),
103 desc = _mm_shuffle_epi8(desc, shuf_mask_dseg);
104 _mm_store_si128(dseg, desc);
105 #ifdef MLX5_PMD_SOFT_COUNTERS
106 tx_byte += DATA_LEN(pkt);
109 #ifdef MLX5_PMD_SOFT_COUNTERS
110 txq->stats.obytes += tx_byte;
115 * Count the number of continuous single segment packets.
118 * Pointer to array of packets.
123 * Number of continuous single segment packets.
125 static inline unsigned int
126 txq_check_multiseg(struct rte_mbuf **pkts, uint16_t pkts_n)
132 /* Count the number of continuous single segment packets. */
133 for (pos = 0; pos < pkts_n; ++pos)
134 if (NB_SEGS(pkts[pos]) > 1)
140 * Count the number of packets having same ol_flags and calculate cs_flags.
143 * Pointer to TX queue structure.
145 * Pointer to array of packets.
149 * Pointer of flags to be returned.
152 * Number of packets having same ol_flags.
154 static inline unsigned int
155 txq_calc_offload(struct txq *txq, struct rte_mbuf **pkts, uint16_t pkts_n,
159 const uint64_t ol_mask =
160 PKT_TX_IP_CKSUM | PKT_TX_TCP_CKSUM |
161 PKT_TX_UDP_CKSUM | PKT_TX_TUNNEL_GRE |
162 PKT_TX_TUNNEL_VXLAN | PKT_TX_OUTER_IP_CKSUM;
166 /* Count the number of packets having same ol_flags. */
167 for (pos = 1; pos < pkts_n; ++pos)
168 if ((pkts[pos]->ol_flags ^ pkts[0]->ol_flags) & ol_mask)
170 /* Should open another MPW session for the rest. */
171 if (pkts[0]->ol_flags &
172 (PKT_TX_IP_CKSUM | PKT_TX_TCP_CKSUM | PKT_TX_UDP_CKSUM)) {
173 const uint64_t is_tunneled =
176 PKT_TX_TUNNEL_VXLAN);
178 if (is_tunneled && txq->tunnel_en) {
179 *cs_flags = MLX5_ETH_WQE_L3_INNER_CSUM |
180 MLX5_ETH_WQE_L4_INNER_CSUM;
181 if (pkts[0]->ol_flags & PKT_TX_OUTER_IP_CKSUM)
182 *cs_flags |= MLX5_ETH_WQE_L3_CSUM;
184 *cs_flags = MLX5_ETH_WQE_L3_CSUM |
185 MLX5_ETH_WQE_L4_CSUM;
192 * Send multi-segmented packets until it encounters a single segment packet in
196 * Pointer to TX queue structure.
198 * Pointer to array of packets to be sent.
200 * Number of packets to be sent.
203 * Number of packets successfully transmitted (<= pkts_n).
206 txq_scatter_v(struct txq *txq, struct rte_mbuf **pkts, uint16_t pkts_n)
208 uint16_t elts_head = txq->elts_head;
209 const uint16_t elts_n = 1 << txq->elts_n;
210 const uint16_t elts_m = elts_n - 1;
211 const uint16_t wq_n = 1 << txq->wqe_n;
212 const uint16_t wq_mask = wq_n - 1;
213 const unsigned int nb_dword_per_wqebb =
214 MLX5_WQE_SIZE / MLX5_WQE_DWORD_SIZE;
215 const unsigned int nb_dword_in_hdr =
216 sizeof(struct mlx5_wqe) / MLX5_WQE_DWORD_SIZE;
218 volatile struct mlx5_wqe *wqe = NULL;
220 assert(elts_n > pkts_n);
221 mlx5_tx_complete(txq);
222 if (unlikely(!pkts_n))
224 for (n = 0; n < pkts_n; ++n) {
225 struct rte_mbuf *buf = pkts[n];
226 unsigned int segs_n = buf->nb_segs;
227 unsigned int ds = nb_dword_in_hdr;
228 unsigned int len = PKT_LEN(buf);
229 uint16_t wqe_ci = txq->wqe_ci;
230 const __m128i shuf_mask_ctrl =
231 _mm_set_epi8(15, 14, 13, 12,
232 8, 9, 10, 11, /* bswap32 */
233 4, 5, 6, 7, /* bswap32 */
234 0, 1, 2, 3 /* bswap32 */);
235 uint8_t cs_flags = 0;
238 __m128i *t_wqe, *dseg;
242 max_elts = elts_n - (elts_head - txq->elts_tail);
243 max_wqe = wq_n - (txq->wqe_ci - txq->wqe_pi);
245 * A MPW session consumes 2 WQEs at most to
246 * include MLX5_MPW_DSEG_MAX pointers.
249 max_elts < segs_n || max_wqe < 2)
251 if (segs_n > MLX5_MPW_DSEG_MAX) {
252 txq->stats.oerrors++;
255 wqe = &((volatile struct mlx5_wqe64 *)
256 txq->wqes)[wqe_ci & wq_mask].hdr;
258 (PKT_TX_IP_CKSUM | PKT_TX_TCP_CKSUM | PKT_TX_UDP_CKSUM)) {
259 const uint64_t is_tunneled = buf->ol_flags &
261 PKT_TX_TUNNEL_VXLAN);
263 if (is_tunneled && txq->tunnel_en) {
264 cs_flags = MLX5_ETH_WQE_L3_INNER_CSUM |
265 MLX5_ETH_WQE_L4_INNER_CSUM;
266 if (buf->ol_flags & PKT_TX_OUTER_IP_CKSUM)
267 cs_flags |= MLX5_ETH_WQE_L3_CSUM;
269 cs_flags = MLX5_ETH_WQE_L3_CSUM |
270 MLX5_ETH_WQE_L4_CSUM;
273 /* Title WQEBB pointer. */
274 t_wqe = (__m128i *)wqe;
275 dseg = (__m128i *)(wqe + 1);
277 if (!(ds++ % nb_dword_per_wqebb)) {
279 &((volatile struct mlx5_wqe64 *)
280 txq->wqes)[++wqe_ci & wq_mask];
282 txq_wr_dseg_v(txq, dseg++, &buf, 1);
283 (*txq->elts)[elts_head++ & elts_m] = buf;
287 /* Fill CTRL in the header. */
288 ctrl = _mm_set_epi32(0, 0, txq->qp_num_8s | ds,
289 MLX5_OPC_MOD_MPW << 24 |
290 txq->wqe_ci << 8 | MLX5_OPCODE_TSO);
291 ctrl = _mm_shuffle_epi8(ctrl, shuf_mask_ctrl);
292 _mm_store_si128(t_wqe, ctrl);
293 /* Fill ESEG in the header. */
294 _mm_store_si128(t_wqe + 1,
295 _mm_set_epi16(0, 0, 0, 0,
296 rte_cpu_to_be_16(len), cs_flags,
298 txq->wqe_ci = wqe_ci;
302 txq->elts_comp += (uint16_t)(elts_head - txq->elts_head);
303 txq->elts_head = elts_head;
304 if (txq->elts_comp >= MLX5_TX_COMP_THRESH) {
305 wqe->ctrl[2] = rte_cpu_to_be_32(8);
306 wqe->ctrl[3] = txq->elts_head;
310 #ifdef MLX5_PMD_SOFT_COUNTERS
311 txq->stats.opackets += n;
313 mlx5_tx_dbrec(txq, wqe);
318 * Send burst of packets with Enhanced MPW. If it encounters a multi-seg packet,
319 * it returns to make it processed by txq_scatter_v(). All the packets in
320 * the pkts list should be single segment packets having same offload flags.
321 * This must be checked by txq_check_multiseg() and txq_calc_offload().
324 * Pointer to TX queue structure.
326 * Pointer to array of packets to be sent.
328 * Number of packets to be sent (<= MLX5_VPMD_TX_MAX_BURST).
330 * Checksum offload flags to be written in the descriptor.
333 * Number of packets successfully transmitted (<= pkts_n).
335 static inline uint16_t
336 txq_burst_v(struct txq *txq, struct rte_mbuf **pkts, uint16_t pkts_n,
339 struct rte_mbuf **elts;
340 uint16_t elts_head = txq->elts_head;
341 const uint16_t elts_n = 1 << txq->elts_n;
342 const uint16_t elts_m = elts_n - 1;
343 const unsigned int nb_dword_per_wqebb =
344 MLX5_WQE_SIZE / MLX5_WQE_DWORD_SIZE;
345 const unsigned int nb_dword_in_hdr =
346 sizeof(struct mlx5_wqe) / MLX5_WQE_DWORD_SIZE;
351 uint32_t comp_req = 0;
352 const uint16_t wq_n = 1 << txq->wqe_n;
353 const uint16_t wq_mask = wq_n - 1;
354 uint16_t wq_idx = txq->wqe_ci & wq_mask;
355 volatile struct mlx5_wqe64 *wq =
356 &((volatile struct mlx5_wqe64 *)txq->wqes)[wq_idx];
357 volatile struct mlx5_wqe *wqe = (volatile struct mlx5_wqe *)wq;
358 const __m128i shuf_mask_ctrl =
359 _mm_set_epi8(15, 14, 13, 12,
360 8, 9, 10, 11, /* bswap32 */
361 4, 5, 6, 7, /* bswap32 */
362 0, 1, 2, 3 /* bswap32 */);
363 __m128i *t_wqe, *dseg;
366 /* Make sure all packets can fit into a single WQE. */
367 assert(elts_n > pkts_n);
368 mlx5_tx_complete(txq);
369 max_elts = (elts_n - (elts_head - txq->elts_tail));
370 max_wqe = (1u << txq->wqe_n) - (txq->wqe_ci - txq->wqe_pi);
371 pkts_n = RTE_MIN((unsigned int)RTE_MIN(pkts_n, max_wqe), max_elts);
372 assert(pkts_n <= MLX5_DSEG_MAX - nb_dword_in_hdr);
373 if (unlikely(!pkts_n))
375 elts = &(*txq->elts)[elts_head & elts_m];
376 /* Loop for available tailroom first. */
377 n = RTE_MIN(elts_n - (elts_head & elts_m), pkts_n);
378 for (pos = 0; pos < (n & -2); pos += 2)
379 _mm_storeu_si128((__m128i *)&elts[pos],
380 _mm_loadu_si128((__m128i *)&pkts[pos]));
382 elts[pos] = pkts[pos];
383 /* Check if it crosses the end of the queue. */
384 if (unlikely(n < pkts_n)) {
385 elts = &(*txq->elts)[0];
386 for (pos = 0; pos < pkts_n - n; ++pos)
387 elts[pos] = pkts[n + pos];
389 txq->elts_head += pkts_n;
390 /* Save title WQEBB pointer. */
391 t_wqe = (__m128i *)wqe;
392 dseg = (__m128i *)(wqe + 1);
393 /* Calculate the number of entries to the end. */
395 (wq_n - wq_idx) * nb_dword_per_wqebb - nb_dword_in_hdr,
398 txq_wr_dseg_v(txq, dseg, pkts, n);
399 /* Check if it crosses the end of the queue. */
401 dseg = (__m128i *)txq->wqes;
402 txq_wr_dseg_v(txq, dseg, &pkts[n], pkts_n - n);
404 if (txq->elts_comp + pkts_n < MLX5_TX_COMP_THRESH) {
405 txq->elts_comp += pkts_n;
407 /* Request a completion. */
412 /* Fill CTRL in the header. */
413 ctrl = _mm_set_epi32(txq->elts_head, comp_req,
414 txq->qp_num_8s | (pkts_n + 2),
415 MLX5_OPC_MOD_ENHANCED_MPSW << 24 |
416 txq->wqe_ci << 8 | MLX5_OPCODE_ENHANCED_MPSW);
417 ctrl = _mm_shuffle_epi8(ctrl, shuf_mask_ctrl);
418 _mm_store_si128(t_wqe, ctrl);
419 /* Fill ESEG in the header. */
420 _mm_store_si128(t_wqe + 1,
421 _mm_set_epi8(0, 0, 0, 0,
425 #ifdef MLX5_PMD_SOFT_COUNTERS
426 txq->stats.opackets += pkts_n;
428 txq->wqe_ci += (nb_dword_in_hdr + pkts_n + (nb_dword_per_wqebb - 1)) /
430 /* Ring QP doorbell. */
431 mlx5_tx_dbrec(txq, wqe);
436 * DPDK callback for vectorized TX.
439 * Generic pointer to TX queue structure.
441 * Packets to transmit.
443 * Number of packets in array.
446 * Number of packets successfully transmitted (<= pkts_n).
449 mlx5_tx_burst_raw_vec(void *dpdk_txq, struct rte_mbuf **pkts,
452 struct txq *txq = (struct txq *)dpdk_txq;
455 while (pkts_n > nb_tx) {
459 n = RTE_MIN((uint16_t)(pkts_n - nb_tx), MLX5_VPMD_TX_MAX_BURST);
460 ret = txq_burst_v(txq, &pkts[nb_tx], n, 0);
469 * DPDK callback for vectorized TX with multi-seg packets and offload.
472 * Generic pointer to TX queue structure.
474 * Packets to transmit.
476 * Number of packets in array.
479 * Number of packets successfully transmitted (<= pkts_n).
482 mlx5_tx_burst_vec(void *dpdk_txq, struct rte_mbuf **pkts, uint16_t pkts_n)
484 struct txq *txq = (struct txq *)dpdk_txq;
487 while (pkts_n > nb_tx) {
488 uint8_t cs_flags = 0;
492 /* Transmit multi-seg packets in the head of pkts list. */
493 if (!(txq->flags & ETH_TXQ_FLAGS_NOMULTSEGS) &&
494 NB_SEGS(pkts[nb_tx]) > 1)
495 nb_tx += txq_scatter_v(txq,
498 n = RTE_MIN((uint16_t)(pkts_n - nb_tx), MLX5_VPMD_TX_MAX_BURST);
499 if (!(txq->flags & ETH_TXQ_FLAGS_NOMULTSEGS))
500 n = txq_check_multiseg(&pkts[nb_tx], n);
501 if (!(txq->flags & ETH_TXQ_FLAGS_NOOFFLOADS))
502 n = txq_calc_offload(txq, &pkts[nb_tx], n, &cs_flags);
503 ret = txq_burst_v(txq, &pkts[nb_tx], n, cs_flags);
512 * Store free buffers to RX SW ring.
515 * Pointer to RX queue structure.
517 * Pointer to array of packets to be stored.
519 * Number of packets to be stored.
522 rxq_copy_mbuf_v(struct rxq *rxq, struct rte_mbuf **pkts, uint16_t n)
524 const uint16_t q_mask = (1 << rxq->elts_n) - 1;
525 struct rte_mbuf **elts = &(*rxq->elts)[rxq->rq_pi & q_mask];
529 for (pos = 0; pos < p; pos += 2) {
532 mbp = _mm_loadu_si128((__m128i *)&elts[pos]);
533 _mm_storeu_si128((__m128i *)&pkts[pos], mbp);
536 pkts[pos] = elts[pos];
540 * Replenish buffers for RX in bulk.
543 * Pointer to RX queue structure.
545 * Number of buffers to be replenished.
548 rxq_replenish_bulk_mbuf(struct rxq *rxq, uint16_t n)
550 const uint16_t q_n = 1 << rxq->elts_n;
551 const uint16_t q_mask = q_n - 1;
552 const uint16_t elts_idx = rxq->rq_ci & q_mask;
553 struct rte_mbuf **elts = &(*rxq->elts)[elts_idx];
554 volatile struct mlx5_wqe_data_seg *wq = &(*rxq->wqes)[elts_idx];
557 assert(n >= MLX5_VPMD_RXQ_RPLNSH_THRESH);
558 assert(n <= (uint16_t)(q_n - (rxq->rq_ci - rxq->rq_pi)));
559 assert(MLX5_VPMD_RXQ_RPLNSH_THRESH > MLX5_VPMD_DESCS_PER_LOOP);
560 /* Not to cross queue end. */
561 n = RTE_MIN(n - MLX5_VPMD_DESCS_PER_LOOP, q_n - elts_idx);
562 if (rte_mempool_get_bulk(rxq->mp, (void *)elts, n) < 0) {
563 rxq->stats.rx_nombuf += n;
566 for (i = 0; i < n; ++i)
567 wq[i].addr = rte_cpu_to_be_64((uintptr_t)elts[i]->buf_addr +
568 RTE_PKTMBUF_HEADROOM);
571 *rxq->rq_db = rte_cpu_to_be_32(rxq->rq_ci);
575 * Decompress a compressed completion and fill in mbufs in RX SW ring with data
576 * extracted from the title completion descriptor.
579 * Pointer to RX queue structure.
581 * Pointer to completion array having a compressed completion at first.
583 * Pointer to SW ring to be filled. The first mbuf has to be pre-built from
584 * the title completion descriptor to be copied to the rest of mbufs.
587 rxq_cq_decompress_v(struct rxq *rxq,
588 volatile struct mlx5_cqe *cq,
589 struct rte_mbuf **elts)
591 volatile struct mlx5_mini_cqe8 *mcq = (void *)(cq + 1);
592 struct rte_mbuf *t_pkt = elts[0]; /* Title packet is pre-built. */
595 unsigned int inv = 0;
596 /* Mask to shuffle from extracted mini CQE to mbuf. */
597 const __m128i shuf_mask1 =
598 _mm_set_epi8(0, 1, 2, 3, /* rss, bswap32 */
599 -1, -1, /* skip vlan_tci */
600 6, 7, /* data_len, bswap16 */
601 -1, -1, 6, 7, /* pkt_len, bswap16 */
602 -1, -1, -1, -1 /* skip packet_type */);
603 const __m128i shuf_mask2 =
604 _mm_set_epi8(8, 9, 10, 11, /* rss, bswap32 */
605 -1, -1, /* skip vlan_tci */
606 14, 15, /* data_len, bswap16 */
607 -1, -1, 14, 15, /* pkt_len, bswap16 */
608 -1, -1, -1, -1 /* skip packet_type */);
609 /* Restore the compressed count. Must be 16 bits. */
610 const uint16_t mcqe_n = t_pkt->data_len +
611 (rxq->crc_present * ETHER_CRC_LEN);
612 const __m128i rearm =
613 _mm_loadu_si128((__m128i *)&t_pkt->rearm_data);
615 _mm_loadu_si128((__m128i *)&t_pkt->rx_descriptor_fields1);
616 const __m128i crc_adj =
617 _mm_set_epi16(0, 0, 0,
618 rxq->crc_present * ETHER_CRC_LEN,
620 rxq->crc_present * ETHER_CRC_LEN,
622 const uint32_t flow_tag = t_pkt->hash.fdir.hi;
623 #ifdef MLX5_PMD_SOFT_COUNTERS
624 const __m128i zero = _mm_setzero_si128();
625 const __m128i ones = _mm_cmpeq_epi32(zero, zero);
626 uint32_t rcvd_byte = 0;
627 /* Mask to shuffle byte_cnt to add up stats. Do bswap16 for all. */
628 const __m128i len_shuf_mask =
629 _mm_set_epi8(-1, -1, -1, -1,
635 /* Compile time sanity check for this function. */
636 RTE_BUILD_BUG_ON(offsetof(struct rte_mbuf, pkt_len) !=
637 offsetof(struct rte_mbuf, rx_descriptor_fields1) + 4);
638 RTE_BUILD_BUG_ON(offsetof(struct rte_mbuf, data_len) !=
639 offsetof(struct rte_mbuf, rx_descriptor_fields1) + 8);
640 RTE_BUILD_BUG_ON(offsetof(struct rte_mbuf, hash) !=
641 offsetof(struct rte_mbuf, rx_descriptor_fields1) + 12);
643 * A. load mCQEs into a 128bit register.
644 * B. store rearm data to mbuf.
645 * C. combine data from mCQEs with rx_descriptor_fields1.
646 * D. store rx_descriptor_fields1.
647 * E. store flow tag (rte_flow mark).
649 for (pos = 0; pos < mcqe_n; ) {
650 __m128i mcqe1, mcqe2;
651 __m128i rxdf1, rxdf2;
652 #ifdef MLX5_PMD_SOFT_COUNTERS
653 __m128i byte_cnt, invalid_mask;
656 if (!(pos & 0x7) && pos + 8 < mcqe_n)
657 rte_prefetch0((void *)(cq + pos + 8));
658 /* A.1 load mCQEs into a 128bit register. */
659 mcqe1 = _mm_loadu_si128((__m128i *)&mcq[pos % 8]);
660 mcqe2 = _mm_loadu_si128((__m128i *)&mcq[pos % 8 + 2]);
661 /* B.1 store rearm data to mbuf. */
662 _mm_storeu_si128((__m128i *)&elts[pos]->rearm_data, rearm);
663 _mm_storeu_si128((__m128i *)&elts[pos + 1]->rearm_data, rearm);
664 /* C.1 combine data from mCQEs with rx_descriptor_fields1. */
665 rxdf1 = _mm_shuffle_epi8(mcqe1, shuf_mask1);
666 rxdf2 = _mm_shuffle_epi8(mcqe1, shuf_mask2);
667 rxdf1 = _mm_sub_epi16(rxdf1, crc_adj);
668 rxdf2 = _mm_sub_epi16(rxdf2, crc_adj);
669 rxdf1 = _mm_blend_epi16(rxdf1, rxdf, 0x23);
670 rxdf2 = _mm_blend_epi16(rxdf2, rxdf, 0x23);
671 /* D.1 store rx_descriptor_fields1. */
672 _mm_storeu_si128((__m128i *)
673 &elts[pos]->rx_descriptor_fields1,
675 _mm_storeu_si128((__m128i *)
676 &elts[pos + 1]->rx_descriptor_fields1,
678 /* B.1 store rearm data to mbuf. */
679 _mm_storeu_si128((__m128i *)&elts[pos + 2]->rearm_data, rearm);
680 _mm_storeu_si128((__m128i *)&elts[pos + 3]->rearm_data, rearm);
681 /* C.1 combine data from mCQEs with rx_descriptor_fields1. */
682 rxdf1 = _mm_shuffle_epi8(mcqe2, shuf_mask1);
683 rxdf2 = _mm_shuffle_epi8(mcqe2, shuf_mask2);
684 rxdf1 = _mm_sub_epi16(rxdf1, crc_adj);
685 rxdf2 = _mm_sub_epi16(rxdf2, crc_adj);
686 rxdf1 = _mm_blend_epi16(rxdf1, rxdf, 0x23);
687 rxdf2 = _mm_blend_epi16(rxdf2, rxdf, 0x23);
688 /* D.1 store rx_descriptor_fields1. */
689 _mm_storeu_si128((__m128i *)
690 &elts[pos + 2]->rx_descriptor_fields1,
692 _mm_storeu_si128((__m128i *)
693 &elts[pos + 3]->rx_descriptor_fields1,
695 #ifdef MLX5_PMD_SOFT_COUNTERS
696 invalid_mask = _mm_set_epi64x(0,
698 sizeof(uint16_t) * 8);
699 invalid_mask = _mm_sll_epi64(ones, invalid_mask);
700 mcqe1 = _mm_srli_si128(mcqe1, 4);
701 byte_cnt = _mm_blend_epi16(mcqe1, mcqe2, 0xcc);
702 byte_cnt = _mm_shuffle_epi8(byte_cnt, len_shuf_mask);
703 byte_cnt = _mm_andnot_si128(invalid_mask, byte_cnt);
704 byte_cnt = _mm_hadd_epi16(byte_cnt, zero);
705 rcvd_byte += _mm_cvtsi128_si64(_mm_hadd_epi16(byte_cnt, zero));
708 /* E.1 store flow tag (rte_flow mark). */
709 elts[pos]->hash.fdir.hi = flow_tag;
710 elts[pos + 1]->hash.fdir.hi = flow_tag;
711 elts[pos + 2]->hash.fdir.hi = flow_tag;
712 elts[pos + 3]->hash.fdir.hi = flow_tag;
714 pos += MLX5_VPMD_DESCS_PER_LOOP;
715 /* Move to next CQE and invalidate consumed CQEs. */
716 if (!(pos & 0x7) && pos < mcqe_n) {
717 mcq = (void *)(cq + pos);
718 for (i = 0; i < 8; ++i)
719 cq[inv++].op_own = MLX5_CQE_INVALIDATE;
722 /* Invalidate the rest of CQEs. */
723 for (; inv < mcqe_n; ++inv)
724 cq[inv].op_own = MLX5_CQE_INVALIDATE;
725 #ifdef MLX5_PMD_SOFT_COUNTERS
726 rxq->stats.ipackets += mcqe_n;
727 rxq->stats.ibytes += rcvd_byte;
729 rxq->cq_ci += mcqe_n;
733 * Calculate packet type and offload flag for mbuf and store it.
736 * Pointer to RX queue structure.
738 * Array of four 16bytes completions extracted from the original completion
741 * Opcode vector having responder error status. Each field is 4B.
743 * Pointer to array of packets to be filled.
746 rxq_cq_to_ptype_oflags_v(struct rxq *rxq, __m128i cqes[4], __m128i op_err,
747 struct rte_mbuf **pkts)
749 __m128i pinfo0, pinfo1;
750 __m128i pinfo, ptype;
751 __m128i ol_flags = _mm_set1_epi32(rxq->rss_hash * PKT_RX_RSS_HASH);
753 const __m128i zero = _mm_setzero_si128();
754 const __m128i ptype_mask =
755 _mm_set_epi32(0xfd06, 0xfd06, 0xfd06, 0xfd06);
756 const __m128i ptype_ol_mask =
757 _mm_set_epi32(0x106, 0x106, 0x106, 0x106);
758 const __m128i pinfo_mask =
759 _mm_set_epi32(0x3, 0x3, 0x3, 0x3);
760 const __m128i cv_flag_sel =
761 _mm_set_epi8(0, 0, 0, 0, 0, 0, 0, 0, 0,
762 (uint8_t)((PKT_RX_IP_CKSUM_GOOD |
763 PKT_RX_L4_CKSUM_GOOD) >> 1),
765 (uint8_t)(PKT_RX_L4_CKSUM_GOOD >> 1),
767 (uint8_t)(PKT_RX_IP_CKSUM_GOOD >> 1),
768 (uint8_t)(PKT_RX_VLAN_PKT | PKT_RX_VLAN_STRIPPED),
770 const __m128i cv_mask =
771 _mm_set_epi32(PKT_RX_IP_CKSUM_GOOD | PKT_RX_L4_CKSUM_GOOD |
772 PKT_RX_VLAN_PKT | PKT_RX_VLAN_STRIPPED,
773 PKT_RX_IP_CKSUM_GOOD | PKT_RX_L4_CKSUM_GOOD |
774 PKT_RX_VLAN_PKT | PKT_RX_VLAN_STRIPPED,
775 PKT_RX_IP_CKSUM_GOOD | PKT_RX_L4_CKSUM_GOOD |
776 PKT_RX_VLAN_PKT | PKT_RX_VLAN_STRIPPED,
777 PKT_RX_IP_CKSUM_GOOD | PKT_RX_L4_CKSUM_GOOD |
778 PKT_RX_VLAN_PKT | PKT_RX_VLAN_STRIPPED);
779 const __m128i mbuf_init =
780 _mm_loadl_epi64((__m128i *)&rxq->mbuf_initializer);
781 __m128i rearm0, rearm1, rearm2, rearm3;
783 /* Extract pkt_info field. */
784 pinfo0 = _mm_unpacklo_epi32(cqes[0], cqes[1]);
785 pinfo1 = _mm_unpacklo_epi32(cqes[2], cqes[3]);
786 pinfo = _mm_unpacklo_epi64(pinfo0, pinfo1);
787 /* Extract hdr_type_etc field. */
788 pinfo0 = _mm_unpackhi_epi32(cqes[0], cqes[1]);
789 pinfo1 = _mm_unpackhi_epi32(cqes[2], cqes[3]);
790 ptype = _mm_unpacklo_epi64(pinfo0, pinfo1);
792 const __m128i pinfo_ft_mask =
793 _mm_set_epi32(0xffffff00, 0xffffff00,
794 0xffffff00, 0xffffff00);
795 const __m128i fdir_flags = _mm_set1_epi32(PKT_RX_FDIR);
796 const __m128i fdir_id_flags = _mm_set1_epi32(PKT_RX_FDIR_ID);
797 __m128i flow_tag, invalid_mask;
799 flow_tag = _mm_and_si128(pinfo, pinfo_ft_mask);
800 /* Check if flow tag is non-zero then set PKT_RX_FDIR. */
801 invalid_mask = _mm_cmpeq_epi32(flow_tag, zero);
802 ol_flags = _mm_or_si128(ol_flags,
803 _mm_andnot_si128(invalid_mask,
805 /* Mask out invalid entries. */
806 flow_tag = _mm_andnot_si128(invalid_mask, flow_tag);
807 /* Check if flow tag MLX5_FLOW_MARK_DEFAULT. */
808 ol_flags = _mm_or_si128(ol_flags,
810 _mm_cmpeq_epi32(flow_tag,
815 * Merge the two fields to generate the following:
819 * bit[11:10] = l3_hdr_type
820 * bit[14:12] = l4_hdr_type
823 * bit[17] = outer_l3_type
825 ptype = _mm_and_si128(ptype, ptype_mask);
826 pinfo = _mm_and_si128(pinfo, pinfo_mask);
827 pinfo = _mm_slli_epi32(pinfo, 16);
828 /* Make pinfo has merged fields for ol_flags calculation. */
829 pinfo = _mm_or_si128(ptype, pinfo);
830 ptype = _mm_srli_epi32(pinfo, 10);
831 ptype = _mm_packs_epi32(ptype, zero);
832 /* Errored packets will have RTE_PTYPE_ALL_MASK. */
833 op_err = _mm_srli_epi16(op_err, 8);
834 ptype = _mm_or_si128(ptype, op_err);
835 pkts[0]->packet_type = mlx5_ptype_table[_mm_extract_epi8(ptype, 0)];
836 pkts[1]->packet_type = mlx5_ptype_table[_mm_extract_epi8(ptype, 2)];
837 pkts[2]->packet_type = mlx5_ptype_table[_mm_extract_epi8(ptype, 4)];
838 pkts[3]->packet_type = mlx5_ptype_table[_mm_extract_epi8(ptype, 6)];
839 /* Fill flags for checksum and VLAN. */
840 pinfo = _mm_and_si128(pinfo, ptype_ol_mask);
841 pinfo = _mm_shuffle_epi8(cv_flag_sel, pinfo);
842 /* Locate checksum flags at byte[2:1] and merge with VLAN flags. */
843 cv_flags = _mm_slli_epi32(pinfo, 9);
844 cv_flags = _mm_or_si128(pinfo, cv_flags);
845 /* Move back flags to start from byte[0]. */
846 cv_flags = _mm_srli_epi32(cv_flags, 8);
847 /* Mask out garbage bits. */
848 cv_flags = _mm_and_si128(cv_flags, cv_mask);
849 /* Merge to ol_flags. */
850 ol_flags = _mm_or_si128(ol_flags, cv_flags);
851 /* Merge mbuf_init and ol_flags. */
852 RTE_BUILD_BUG_ON(offsetof(struct rte_mbuf, ol_flags) !=
853 offsetof(struct rte_mbuf, rearm_data) + 8);
854 rearm0 = _mm_blend_epi16(mbuf_init, _mm_slli_si128(ol_flags, 8), 0x30);
855 rearm1 = _mm_blend_epi16(mbuf_init, _mm_slli_si128(ol_flags, 4), 0x30);
856 rearm2 = _mm_blend_epi16(mbuf_init, ol_flags, 0x30);
857 rearm3 = _mm_blend_epi16(mbuf_init, _mm_srli_si128(ol_flags, 4), 0x30);
858 /* Write 8B rearm_data and 8B ol_flags. */
859 RTE_BUILD_BUG_ON(offsetof(struct rte_mbuf, rearm_data) !=
860 RTE_ALIGN(offsetof(struct rte_mbuf, rearm_data), 16));
861 _mm_store_si128((__m128i *)&pkts[0]->rearm_data, rearm0);
862 _mm_store_si128((__m128i *)&pkts[1]->rearm_data, rearm1);
863 _mm_store_si128((__m128i *)&pkts[2]->rearm_data, rearm2);
864 _mm_store_si128((__m128i *)&pkts[3]->rearm_data, rearm3);
868 * Skip error packets.
871 * Pointer to RX queue structure.
873 * Array to store received packets.
875 * Maximum number of packets in array.
878 * Number of packets successfully received (<= pkts_n).
881 rxq_handle_pending_error(struct rxq *rxq, struct rte_mbuf **pkts,
886 #ifdef MLX5_PMD_SOFT_COUNTERS
887 uint32_t err_bytes = 0;
890 for (i = 0; i < pkts_n; ++i) {
891 struct rte_mbuf *pkt = pkts[i];
893 if (pkt->packet_type == RTE_PTYPE_ALL_MASK) {
894 #ifdef MLX5_PMD_SOFT_COUNTERS
895 err_bytes += PKT_LEN(pkt);
897 rte_pktmbuf_free_seg(pkt);
902 rxq->stats.idropped += (pkts_n - n);
903 #ifdef MLX5_PMD_SOFT_COUNTERS
904 /* Correct counters of errored completions. */
905 rxq->stats.ipackets -= (pkts_n - n);
906 rxq->stats.ibytes -= err_bytes;
908 rxq->pending_err = 0;
913 * Receive burst of packets. An errored completion also consumes a mbuf, but the
914 * packet_type is set to be RTE_PTYPE_ALL_MASK. Marked mbufs should be freed
915 * before returning to application.
918 * Pointer to RX queue structure.
920 * Array to store received packets.
922 * Maximum number of packets in array.
925 * Number of packets received including errors (<= pkts_n).
927 static inline uint16_t
928 rxq_burst_v(struct rxq *rxq, struct rte_mbuf **pkts, uint16_t pkts_n)
930 const uint16_t q_n = 1 << rxq->cqe_n;
931 const uint16_t q_mask = q_n - 1;
932 volatile struct mlx5_cqe *cq;
933 struct rte_mbuf **elts;
937 uint64_t comp_idx = MLX5_VPMD_DESCS_PER_LOOP;
938 uint16_t nocmp_n = 0;
939 uint16_t rcvd_pkt = 0;
940 unsigned int cq_idx = rxq->cq_ci & q_mask;
941 unsigned int elts_idx;
942 unsigned int ownership = !!(rxq->cq_ci & (q_mask + 1));
943 const __m128i owner_check =
944 _mm_set_epi64x(0x0100000001000000LL, 0x0100000001000000LL);
945 const __m128i opcode_check =
946 _mm_set_epi64x(0xf0000000f0000000LL, 0xf0000000f0000000LL);
947 const __m128i format_check =
948 _mm_set_epi64x(0x0c0000000c000000LL, 0x0c0000000c000000LL);
949 const __m128i resp_err_check =
950 _mm_set_epi64x(0xe0000000e0000000LL, 0xe0000000e0000000LL);
951 #ifdef MLX5_PMD_SOFT_COUNTERS
952 uint32_t rcvd_byte = 0;
953 /* Mask to shuffle byte_cnt to add up stats. Do bswap16 for all. */
954 const __m128i len_shuf_mask =
955 _mm_set_epi8(-1, -1, -1, -1,
960 /* Mask to shuffle from extracted CQE to mbuf. */
961 const __m128i shuf_mask =
962 _mm_set_epi8(-1, 3, 2, 1, /* fdir.hi */
963 12, 13, 14, 15, /* rss, bswap32 */
964 10, 11, /* vlan_tci, bswap16 */
965 4, 5, /* data_len, bswap16 */
966 -1, -1, /* zero out 2nd half of pkt_len */
967 4, 5 /* pkt_len, bswap16 */);
968 /* Mask to blend from the last Qword to the first DQword. */
969 const __m128i blend_mask =
970 _mm_set_epi8(-1, -1, -1, -1,
974 const __m128i zero = _mm_setzero_si128();
975 const __m128i ones = _mm_cmpeq_epi32(zero, zero);
976 const __m128i crc_adj =
977 _mm_set_epi16(0, 0, 0, 0, 0,
978 rxq->crc_present * ETHER_CRC_LEN,
980 rxq->crc_present * ETHER_CRC_LEN);
981 const __m128i flow_mark_adj = _mm_set_epi32(rxq->mark * (-1), 0, 0, 0);
983 /* Compile time sanity check for this function. */
984 RTE_BUILD_BUG_ON(offsetof(struct rte_mbuf, pkt_len) !=
985 offsetof(struct rte_mbuf, rx_descriptor_fields1) + 4);
986 RTE_BUILD_BUG_ON(offsetof(struct rte_mbuf, data_len) !=
987 offsetof(struct rte_mbuf, rx_descriptor_fields1) + 8);
988 RTE_BUILD_BUG_ON(offsetof(struct mlx5_cqe, pkt_info) != 0);
989 RTE_BUILD_BUG_ON(offsetof(struct mlx5_cqe, rx_hash_res) !=
990 offsetof(struct mlx5_cqe, pkt_info) + 12);
991 RTE_BUILD_BUG_ON(offsetof(struct mlx5_cqe, rsvd1) +
992 sizeof(((struct mlx5_cqe *)0)->rsvd1) !=
993 offsetof(struct mlx5_cqe, hdr_type_etc));
994 RTE_BUILD_BUG_ON(offsetof(struct mlx5_cqe, vlan_info) !=
995 offsetof(struct mlx5_cqe, hdr_type_etc) + 2);
996 RTE_BUILD_BUG_ON(offsetof(struct mlx5_cqe, rsvd2) +
997 sizeof(((struct mlx5_cqe *)0)->rsvd2) !=
998 offsetof(struct mlx5_cqe, byte_cnt));
999 RTE_BUILD_BUG_ON(offsetof(struct mlx5_cqe, sop_drop_qpn) !=
1000 RTE_ALIGN(offsetof(struct mlx5_cqe, sop_drop_qpn), 8));
1001 RTE_BUILD_BUG_ON(offsetof(struct mlx5_cqe, op_own) !=
1002 offsetof(struct mlx5_cqe, sop_drop_qpn) + 7);
1003 assert(rxq->sges_n == 0);
1004 assert(rxq->cqe_n == rxq->elts_n);
1005 cq = &(*rxq->cqes)[cq_idx];
1007 rte_prefetch0(cq + 1);
1008 rte_prefetch0(cq + 2);
1009 rte_prefetch0(cq + 3);
1010 pkts_n = RTE_MIN(pkts_n, MLX5_VPMD_RX_MAX_BURST);
1013 * rq_ci >= cq_ci >= rq_pi
1014 * Definition of indexes:
1015 * rq_ci - cq_ci := # of buffers owned by HW (posted).
1016 * cq_ci - rq_pi := # of buffers not returned to app (decompressed).
1017 * N - (rq_ci - rq_pi) := # of buffers consumed (to be replenished).
1019 repl_n = q_n - (rxq->rq_ci - rxq->rq_pi);
1020 if (repl_n >= MLX5_VPMD_RXQ_RPLNSH_THRESH)
1021 rxq_replenish_bulk_mbuf(rxq, repl_n);
1022 /* See if there're unreturned mbufs from compressed CQE. */
1023 rcvd_pkt = rxq->cq_ci - rxq->rq_pi;
1025 rcvd_pkt = RTE_MIN(rcvd_pkt, pkts_n);
1026 rxq_copy_mbuf_v(rxq, pkts, rcvd_pkt);
1027 rxq->rq_pi += rcvd_pkt;
1030 elts_idx = rxq->rq_pi & q_mask;
1031 elts = &(*rxq->elts)[elts_idx];
1032 /* Not to overflow pkts array. */
1033 pkts_n = RTE_ALIGN_FLOOR(pkts_n - rcvd_pkt, MLX5_VPMD_DESCS_PER_LOOP);
1034 /* Not to cross queue end. */
1035 pkts_n = RTE_MIN(pkts_n, q_n - elts_idx);
1038 /* At this point, there shouldn't be any remained packets. */
1039 assert(rxq->rq_pi == rxq->cq_ci);
1041 * A. load first Qword (8bytes) in one loop.
1042 * B. copy 4 mbuf pointers from elts ring to returing pkts.
1043 * C. load remained CQE data and extract necessary fields.
1044 * Final 16bytes cqes[] extracted from original 64bytes CQE has the
1045 * following structure:
1048 * uint8_t flow_tag[3];
1049 * uint16_t byte_cnt;
1052 * uint16_t hdr_type_etc;
1053 * uint16_t vlan_info;
1054 * uint32_t rx_has_res;
1057 * E. get valid CQEs.
1058 * F. find compressed CQE.
1062 pos += MLX5_VPMD_DESCS_PER_LOOP) {
1063 __m128i cqes[MLX5_VPMD_DESCS_PER_LOOP];
1064 __m128i cqe_tmp1, cqe_tmp2;
1065 __m128i pkt_mb0, pkt_mb1, pkt_mb2, pkt_mb3;
1066 __m128i op_own, op_own_tmp1, op_own_tmp2;
1067 __m128i opcode, owner_mask, invalid_mask;
1070 #ifdef MLX5_PMD_SOFT_COUNTERS
1074 __m128i p = _mm_set_epi16(0, 0, 0, 0, 3, 2, 1, 0);
1075 unsigned int p1, p2, p3;
1077 /* Prefetch next 4 CQEs. */
1078 if (pkts_n - pos >= 2 * MLX5_VPMD_DESCS_PER_LOOP) {
1079 rte_prefetch0(&cq[pos + MLX5_VPMD_DESCS_PER_LOOP]);
1080 rte_prefetch0(&cq[pos + MLX5_VPMD_DESCS_PER_LOOP + 1]);
1081 rte_prefetch0(&cq[pos + MLX5_VPMD_DESCS_PER_LOOP + 2]);
1082 rte_prefetch0(&cq[pos + MLX5_VPMD_DESCS_PER_LOOP + 3]);
1084 /* A.0 do not cross the end of CQ. */
1085 mask = _mm_set_epi64x(0, (pkts_n - pos) * sizeof(uint16_t) * 8);
1086 mask = _mm_sll_epi64(ones, mask);
1087 p = _mm_andnot_si128(mask, p);
1088 /* A.1 load cqes. */
1089 p3 = _mm_extract_epi16(p, 3);
1090 cqes[3] = _mm_loadl_epi64((__m128i *)
1091 &cq[pos + p3].sop_drop_qpn);
1092 rte_compiler_barrier();
1093 p2 = _mm_extract_epi16(p, 2);
1094 cqes[2] = _mm_loadl_epi64((__m128i *)
1095 &cq[pos + p2].sop_drop_qpn);
1096 rte_compiler_barrier();
1097 /* B.1 load mbuf pointers. */
1098 mbp1 = _mm_loadu_si128((__m128i *)&elts[pos]);
1099 mbp2 = _mm_loadu_si128((__m128i *)&elts[pos + 2]);
1100 /* A.1 load a block having op_own. */
1101 p1 = _mm_extract_epi16(p, 1);
1102 cqes[1] = _mm_loadl_epi64((__m128i *)
1103 &cq[pos + p1].sop_drop_qpn);
1104 rte_compiler_barrier();
1105 cqes[0] = _mm_loadl_epi64((__m128i *)
1106 &cq[pos].sop_drop_qpn);
1107 /* B.2 copy mbuf pointers. */
1108 _mm_storeu_si128((__m128i *)&pkts[pos], mbp1);
1109 _mm_storeu_si128((__m128i *)&pkts[pos + 2], mbp2);
1110 rte_compiler_barrier();
1111 /* C.1 load remained CQE data and extract necessary fields. */
1112 cqe_tmp2 = _mm_load_si128((__m128i *)&cq[pos + p3]);
1113 cqe_tmp1 = _mm_load_si128((__m128i *)&cq[pos + p2]);
1114 cqes[3] = _mm_blendv_epi8(cqes[3], cqe_tmp2, blend_mask);
1115 cqes[2] = _mm_blendv_epi8(cqes[2], cqe_tmp1, blend_mask);
1116 cqe_tmp2 = _mm_loadu_si128((__m128i *)&cq[pos + p3].rsvd1[3]);
1117 cqe_tmp1 = _mm_loadu_si128((__m128i *)&cq[pos + p2].rsvd1[3]);
1118 cqes[3] = _mm_blend_epi16(cqes[3], cqe_tmp2, 0x30);
1119 cqes[2] = _mm_blend_epi16(cqes[2], cqe_tmp1, 0x30);
1120 cqe_tmp2 = _mm_loadl_epi64((__m128i *)&cq[pos + p3].rsvd2[10]);
1121 cqe_tmp1 = _mm_loadl_epi64((__m128i *)&cq[pos + p2].rsvd2[10]);
1122 cqes[3] = _mm_blend_epi16(cqes[3], cqe_tmp2, 0x04);
1123 cqes[2] = _mm_blend_epi16(cqes[2], cqe_tmp1, 0x04);
1124 /* C.2 generate final structure for mbuf with swapping bytes. */
1125 pkt_mb3 = _mm_shuffle_epi8(cqes[3], shuf_mask);
1126 pkt_mb2 = _mm_shuffle_epi8(cqes[2], shuf_mask);
1127 /* C.3 adjust CRC length. */
1128 pkt_mb3 = _mm_sub_epi16(pkt_mb3, crc_adj);
1129 pkt_mb2 = _mm_sub_epi16(pkt_mb2, crc_adj);
1130 /* C.4 adjust flow mark. */
1131 pkt_mb3 = _mm_add_epi32(pkt_mb3, flow_mark_adj);
1132 pkt_mb2 = _mm_add_epi32(pkt_mb2, flow_mark_adj);
1133 /* D.1 fill in mbuf - rx_descriptor_fields1. */
1134 _mm_storeu_si128((void *)&pkts[pos + 3]->pkt_len, pkt_mb3);
1135 _mm_storeu_si128((void *)&pkts[pos + 2]->pkt_len, pkt_mb2);
1136 /* E.1 extract op_own field. */
1137 op_own_tmp2 = _mm_unpacklo_epi32(cqes[2], cqes[3]);
1138 /* C.1 load remained CQE data and extract necessary fields. */
1139 cqe_tmp2 = _mm_load_si128((__m128i *)&cq[pos + p1]);
1140 cqe_tmp1 = _mm_load_si128((__m128i *)&cq[pos]);
1141 cqes[1] = _mm_blendv_epi8(cqes[1], cqe_tmp2, blend_mask);
1142 cqes[0] = _mm_blendv_epi8(cqes[0], cqe_tmp1, blend_mask);
1143 cqe_tmp2 = _mm_loadu_si128((__m128i *)&cq[pos + p1].rsvd1[3]);
1144 cqe_tmp1 = _mm_loadu_si128((__m128i *)&cq[pos].rsvd1[3]);
1145 cqes[1] = _mm_blend_epi16(cqes[1], cqe_tmp2, 0x30);
1146 cqes[0] = _mm_blend_epi16(cqes[0], cqe_tmp1, 0x30);
1147 cqe_tmp2 = _mm_loadl_epi64((__m128i *)&cq[pos + p1].rsvd2[10]);
1148 cqe_tmp1 = _mm_loadl_epi64((__m128i *)&cq[pos].rsvd2[10]);
1149 cqes[1] = _mm_blend_epi16(cqes[1], cqe_tmp2, 0x04);
1150 cqes[0] = _mm_blend_epi16(cqes[0], cqe_tmp1, 0x04);
1151 /* C.2 generate final structure for mbuf with swapping bytes. */
1152 pkt_mb1 = _mm_shuffle_epi8(cqes[1], shuf_mask);
1153 pkt_mb0 = _mm_shuffle_epi8(cqes[0], shuf_mask);
1154 /* C.3 adjust CRC length. */
1155 pkt_mb1 = _mm_sub_epi16(pkt_mb1, crc_adj);
1156 pkt_mb0 = _mm_sub_epi16(pkt_mb0, crc_adj);
1157 /* C.4 adjust flow mark. */
1158 pkt_mb1 = _mm_add_epi32(pkt_mb1, flow_mark_adj);
1159 pkt_mb0 = _mm_add_epi32(pkt_mb0, flow_mark_adj);
1160 /* E.1 extract op_own byte. */
1161 op_own_tmp1 = _mm_unpacklo_epi32(cqes[0], cqes[1]);
1162 op_own = _mm_unpackhi_epi64(op_own_tmp1, op_own_tmp2);
1163 /* D.1 fill in mbuf - rx_descriptor_fields1. */
1164 _mm_storeu_si128((void *)&pkts[pos + 1]->pkt_len, pkt_mb1);
1165 _mm_storeu_si128((void *)&pkts[pos]->pkt_len, pkt_mb0);
1166 /* E.2 flip owner bit to mark CQEs from last round. */
1167 owner_mask = _mm_and_si128(op_own, owner_check);
1169 owner_mask = _mm_xor_si128(owner_mask, owner_check);
1170 owner_mask = _mm_cmpeq_epi32(owner_mask, owner_check);
1171 owner_mask = _mm_packs_epi32(owner_mask, zero);
1172 /* E.3 get mask for invalidated CQEs. */
1173 opcode = _mm_and_si128(op_own, opcode_check);
1174 invalid_mask = _mm_cmpeq_epi32(opcode_check, opcode);
1175 invalid_mask = _mm_packs_epi32(invalid_mask, zero);
1176 /* E.4 mask out beyond boundary. */
1177 invalid_mask = _mm_or_si128(invalid_mask, mask);
1178 /* E.5 merge invalid_mask with invalid owner. */
1179 invalid_mask = _mm_or_si128(invalid_mask, owner_mask);
1180 /* F.1 find compressed CQE format. */
1181 comp_mask = _mm_and_si128(op_own, format_check);
1182 comp_mask = _mm_cmpeq_epi32(comp_mask, format_check);
1183 comp_mask = _mm_packs_epi32(comp_mask, zero);
1184 /* F.2 mask out invalid entries. */
1185 comp_mask = _mm_andnot_si128(invalid_mask, comp_mask);
1186 comp_idx = _mm_cvtsi128_si64(comp_mask);
1187 /* F.3 get the first compressed CQE. */
1188 comp_idx = comp_idx ?
1189 __builtin_ctzll(comp_idx) /
1190 (sizeof(uint16_t) * 8) :
1191 MLX5_VPMD_DESCS_PER_LOOP;
1192 /* E.6 mask out entries after the compressed CQE. */
1193 mask = _mm_set_epi64x(0, comp_idx * sizeof(uint16_t) * 8);
1194 mask = _mm_sll_epi64(ones, mask);
1195 invalid_mask = _mm_or_si128(invalid_mask, mask);
1196 /* E.7 count non-compressed valid CQEs. */
1197 n = _mm_cvtsi128_si64(invalid_mask);
1198 n = n ? __builtin_ctzll(n) / (sizeof(uint16_t) * 8) :
1199 MLX5_VPMD_DESCS_PER_LOOP;
1201 /* D.2 get the final invalid mask. */
1202 mask = _mm_set_epi64x(0, n * sizeof(uint16_t) * 8);
1203 mask = _mm_sll_epi64(ones, mask);
1204 invalid_mask = _mm_or_si128(invalid_mask, mask);
1205 /* D.3 check error in opcode. */
1206 opcode = _mm_cmpeq_epi32(resp_err_check, opcode);
1207 opcode = _mm_packs_epi32(opcode, zero);
1208 opcode = _mm_andnot_si128(invalid_mask, opcode);
1209 /* D.4 mark if any error is set */
1210 rxq->pending_err |= !!_mm_cvtsi128_si64(opcode);
1211 /* D.5 fill in mbuf - rearm_data and packet_type. */
1212 rxq_cq_to_ptype_oflags_v(rxq, cqes, opcode, &pkts[pos]);
1213 #ifdef MLX5_PMD_SOFT_COUNTERS
1214 /* Add up received bytes count. */
1215 byte_cnt = _mm_shuffle_epi8(op_own, len_shuf_mask);
1216 byte_cnt = _mm_andnot_si128(invalid_mask, byte_cnt);
1217 byte_cnt = _mm_hadd_epi16(byte_cnt, zero);
1218 rcvd_byte += _mm_cvtsi128_si64(_mm_hadd_epi16(byte_cnt, zero));
1221 * Break the loop unless more valid CQE is expected, or if
1222 * there's a compressed CQE.
1224 if (n != MLX5_VPMD_DESCS_PER_LOOP)
1227 /* If no new CQE seen, return without updating cq_db. */
1228 if (unlikely(!nocmp_n && comp_idx == MLX5_VPMD_DESCS_PER_LOOP))
1230 /* Update the consumer indexes for non-compressed CQEs. */
1231 assert(nocmp_n <= pkts_n);
1232 rxq->cq_ci += nocmp_n;
1233 rxq->rq_pi += nocmp_n;
1234 rcvd_pkt += nocmp_n;
1235 #ifdef MLX5_PMD_SOFT_COUNTERS
1236 rxq->stats.ipackets += nocmp_n;
1237 rxq->stats.ibytes += rcvd_byte;
1239 /* Decompress the last CQE if compressed. */
1240 if (comp_idx < MLX5_VPMD_DESCS_PER_LOOP && comp_idx == n) {
1241 assert(comp_idx == (nocmp_n % MLX5_VPMD_DESCS_PER_LOOP));
1242 rxq_cq_decompress_v(rxq, &cq[nocmp_n], &elts[nocmp_n]);
1243 /* Return more packets if needed. */
1244 if (nocmp_n < pkts_n) {
1245 uint16_t n = rxq->cq_ci - rxq->rq_pi;
1247 n = RTE_MIN(n, pkts_n - nocmp_n);
1248 rxq_copy_mbuf_v(rxq, &pkts[nocmp_n], n);
1254 *rxq->cq_db = rte_cpu_to_be_32(rxq->cq_ci);
1259 * DPDK callback for vectorized RX.
1262 * Generic pointer to RX queue structure.
1264 * Array to store received packets.
1266 * Maximum number of packets in array.
1269 * Number of packets successfully received (<= pkts_n).
1272 mlx5_rx_burst_vec(void *dpdk_rxq, struct rte_mbuf **pkts, uint16_t pkts_n)
1274 struct rxq *rxq = dpdk_rxq;
1277 nb_rx = rxq_burst_v(rxq, pkts, pkts_n);
1278 if (unlikely(rxq->pending_err))
1279 nb_rx = rxq_handle_pending_error(rxq, pkts, nb_rx);
1284 * Check Tx queue flags are set for raw vectorized Tx.
1287 * Pointer to private structure.
1290 * 1 if supported, negative errno value if not.
1292 int __attribute__((cold))
1293 priv_check_raw_vec_tx_support(struct priv *priv)
1297 /* All the configured queues should support. */
1298 for (i = 0; i < priv->txqs_n; ++i) {
1299 struct txq *txq = (*priv->txqs)[i];
1301 if (!(txq->flags & ETH_TXQ_FLAGS_NOMULTSEGS) ||
1302 !(txq->flags & ETH_TXQ_FLAGS_NOOFFLOADS))
1305 if (i != priv->txqs_n)
1311 * Check a device can support vectorized TX.
1314 * Pointer to private structure.
1317 * 1 if supported, negative errno value if not.
1319 int __attribute__((cold))
1320 priv_check_vec_tx_support(struct priv *priv)
1322 if (!priv->tx_vec_en ||
1323 priv->txqs_n > MLX5_VPMD_MIN_TXQS ||
1324 priv->mps != MLX5_MPW_ENHANCED ||
1331 * Check a RX queue can support vectorized RX.
1334 * Pointer to RX queue.
1337 * 1 if supported, negative errno value if not.
1339 int __attribute__((cold))
1340 rxq_check_vec_support(struct rxq *rxq)
1342 struct rxq_ctrl *ctrl = container_of(rxq, struct rxq_ctrl, rxq);
1344 if (!ctrl->priv->rx_vec_en || rxq->sges_n != 0)
1350 * Check a device can support vectorized RX.
1353 * Pointer to private structure.
1356 * 1 if supported, negative errno value if not.
1358 int __attribute__((cold))
1359 priv_check_vec_rx_support(struct priv *priv)
1363 if (!priv->rx_vec_en)
1365 /* All the configured queues should support. */
1366 for (i = 0; i < priv->rxqs_n; ++i) {
1367 struct rxq *rxq = (*priv->rxqs)[i];
1369 if (rxq_check_vec_support(rxq) < 0)
1372 if (i != priv->rxqs_n)