[PATCH v2 1/1] common/idpf: add AVX512 data path for split queue model

[Wenjun Wu <wenjun1.wu@intel.com>]

Add support of AVX512 data path for split queue model.

Signed-off-by: Wenjun Wu <wenjun1.wu@intel.com>
---
 drivers/common/idpf/idpf_common_rxtx.c        |  22 +-
 drivers/common/idpf/idpf_common_rxtx.h        |  19 +-
 drivers/common/idpf/idpf_common_rxtx_avx512.c | 797 +++++++++++++++++-
 drivers/common/idpf/version.map               |   5 +-
 drivers/net/idpf/idpf_rxtx.c                  |  44 +-
 drivers/net/idpf/idpf_rxtx_vec_common.h       |  17 +-
 6 files changed, 868 insertions(+), 36 deletions(-)

diff --git a/drivers/common/idpf/idpf_common_rxtx.c b/drivers/common/idpf/idpf_common_rxtx.c
index 7618819e68..7f8311d8f6 100644
--- a/drivers/common/idpf/idpf_common_rxtx.c
+++ b/drivers/common/idpf/idpf_common_rxtx.c
@@ -161,6 +161,9 @@ reset_split_rx_bufq(struct idpf_rx_queue *rxq)
 	/* The number of descriptors which can be refilled. */
 	rxq->nb_rx_hold = rxq->nb_rx_desc - 1;
 
+	rxq->rxrearm_nb = 0;
+	rxq->rxrearm_start = 0;
+
 	rxq->bufq1 = NULL;
 	rxq->bufq2 = NULL;
 }
@@ -236,6 +239,10 @@ reset_split_tx_descq(struct idpf_tx_queue *txq)
 	txq->last_desc_cleaned = 0;
 	txq->sw_tail = 0;
 	txq->nb_free = txq->nb_tx_desc - 1;
+
+	memset(txq->ctype, 0, sizeof(txq->ctype));
+	txq->next_dd = txq->rs_thresh - 1;
+	txq->next_rs = txq->rs_thresh - 1;
 }
 
 void
@@ -1426,12 +1433,12 @@ release_rxq_mbufs_vec(struct idpf_rx_queue *rxq)
 	memset(rxq->sw_ring, 0, sizeof(rxq->sw_ring[0]) * rxq->nb_rx_desc);
 }
 
-static const struct idpf_rxq_ops def_singleq_rx_ops_vec = {
+static const struct idpf_rxq_ops def_rx_ops_vec = {
 	.release_mbufs = release_rxq_mbufs_vec,
 };
 
 static inline int
-idpf_singleq_rx_vec_setup_default(struct idpf_rx_queue *rxq)
+idpf_rxq_vec_setup_default(struct idpf_rx_queue *rxq)
 {
 	uintptr_t p;
 	struct rte_mbuf mb_def = { .buf_addr = 0 }; /* zeroed mbuf */
@@ -1451,6 +1458,13 @@ idpf_singleq_rx_vec_setup_default(struct idpf_rx_queue *rxq)
 int __rte_cold
 idpf_singleq_rx_vec_setup(struct idpf_rx_queue *rxq)
 {
-	rxq->ops = &def_singleq_rx_ops_vec;
-	return idpf_singleq_rx_vec_setup_default(rxq);
+	rxq->ops = &def_rx_ops_vec;
+	return idpf_rxq_vec_setup_default(rxq);
+}
+
+int __rte_cold
+idpf_splitq_rx_vec_setup(struct idpf_rx_queue *rxq)
+{
+	rxq->bufq2->ops = &def_rx_ops_vec;
+	return idpf_rxq_vec_setup_default(rxq->bufq2);
 }
diff --git a/drivers/common/idpf/idpf_common_rxtx.h b/drivers/common/idpf/idpf_common_rxtx.h
index 8a6e04af56..e23484d031 100644
--- a/drivers/common/idpf/idpf_common_rxtx.h
+++ b/drivers/common/idpf/idpf_common_rxtx.h
@@ -52,6 +52,8 @@
 #define IDPF_VPMD_TX_MAX_BURST		32
 #define IDPF_VPMD_DESCS_PER_LOOP	4
 #define IDPF_RXQ_REARM_THRESH		64
+#define IDPD_TXQ_SCAN_CQ_THRESH	64
+#define IDPF_TX_CTYPE_NUM	8
 
 /* MTS */
 #define GLTSYN_CMD_SYNC_0_0	(PF_TIMESYNC_BASE + 0x0)
@@ -185,6 +187,7 @@ struct idpf_tx_queue {
 	uint32_t tx_start_qid;
 	uint8_t expected_gen_id;
 	struct idpf_tx_queue *complq;
+	uint16_t ctype[IDPF_TX_CTYPE_NUM];
 };
 
 /* Offload features */
@@ -203,6 +206,12 @@ struct idpf_tx_vec_entry {
 	struct rte_mbuf *mbuf;
 };
 
+union idpf_tx_desc {
+	struct idpf_base_tx_desc *tx_ring;
+	struct idpf_flex_tx_sched_desc *desc_ring;
+	struct idpf_splitq_tx_compl_desc *compl_ring;
+};
+
 struct idpf_rxq_ops {
 	void (*release_mbufs)(struct idpf_rx_queue *rxq);
 };
@@ -265,14 +274,22 @@ uint16_t idpf_prep_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
 __rte_internal
 int idpf_singleq_rx_vec_setup(struct idpf_rx_queue *rxq);
 __rte_internal
-int idpf_singleq_tx_vec_setup_avx512(struct idpf_tx_queue *txq);
+int idpf_splitq_rx_vec_setup(struct idpf_rx_queue *rxq);
+__rte_internal
+int idpf_tx_vec_setup_avx512(struct idpf_tx_queue *txq);
 __rte_internal
 uint16_t idpf_singleq_recv_pkts_avx512(void *rx_queue,
 				       struct rte_mbuf **rx_pkts,
 				       uint16_t nb_pkts);
 __rte_internal
+uint16_t idpf_splitq_recv_pkts_avx512(void *tx_queue, struct rte_mbuf **tx_pkts,
+				      uint16_t nb_pkts);
+__rte_internal
 uint16_t idpf_singleq_xmit_pkts_avx512(void *tx_queue,
 				       struct rte_mbuf **tx_pkts,
 				       uint16_t nb_pkts);
+__rte_internal
+uint16_t idpf_splitq_xmit_pkts_avx512(void *tx_queue, struct rte_mbuf **tx_pkts,
+				      uint16_t nb_pkts);
 
 #endif /* _IDPF_COMMON_RXTX_H_ */
diff --git a/drivers/common/idpf/idpf_common_rxtx_avx512.c b/drivers/common/idpf/idpf_common_rxtx_avx512.c
index de52c6e45f..5a91ed610e 100644
--- a/drivers/common/idpf/idpf_common_rxtx_avx512.c
+++ b/drivers/common/idpf/idpf_common_rxtx_avx512.c
@@ -537,8 +537,462 @@ idpf_singleq_recv_pkts_avx512(void *rx_queue, struct rte_mbuf **rx_pkts,
 	return _idpf_singleq_recv_raw_pkts_avx512(rx_queue, rx_pkts, nb_pkts);
 }
 
+static __rte_always_inline void
+idpf_splitq_rearm_common(struct idpf_rx_queue *rx_bufq)
+{
+	struct rte_mbuf **rxp = &rx_bufq->sw_ring[rx_bufq->rxrearm_start];
+	volatile union virtchnl2_rx_buf_desc *rxdp = rx_bufq->rx_ring;
+	uint16_t rx_id;
+	int i;
+
+	rxdp += rx_bufq->rxrearm_start;
+
+	/* Pull 'n' more MBUFs into the software ring */
+	if (rte_mempool_get_bulk(rx_bufq->mp,
+				 (void *)rxp,
+				 IDPF_RXQ_REARM_THRESH) < 0) {
+		if (rx_bufq->rxrearm_nb + IDPF_RXQ_REARM_THRESH >=
+		    rx_bufq->nb_rx_desc) {
+			__m128i dma_addr0;
+
+			dma_addr0 = _mm_setzero_si128();
+			for (i = 0; i < IDPF_VPMD_DESCS_PER_LOOP; i++) {
+				rxp[i] = &rx_bufq->fake_mbuf;
+				_mm_store_si128((__m128i *)&rxdp[i],
+						dma_addr0);
+			}
+		}
+		rx_bufq->rx_stats.mbuf_alloc_failed += IDPF_RXQ_REARM_THRESH;
+		return;
+	}
+
+	/* Initialize the mbufs in vector, process 8 mbufs in one loop */
+	for (i = 0; i < IDPF_RXQ_REARM_THRESH;
+			i += 8, rxp += 8, rxdp += 8) {
+		rxdp[0].split_rd.pkt_addr = rxp[0]->buf_iova + RTE_PKTMBUF_HEADROOM;
+		rxdp[1].split_rd.pkt_addr = rxp[1]->buf_iova + RTE_PKTMBUF_HEADROOM;
+		rxdp[2].split_rd.pkt_addr = rxp[2]->buf_iova + RTE_PKTMBUF_HEADROOM;
+		rxdp[3].split_rd.pkt_addr = rxp[3]->buf_iova + RTE_PKTMBUF_HEADROOM;
+		rxdp[4].split_rd.pkt_addr = rxp[4]->buf_iova + RTE_PKTMBUF_HEADROOM;
+		rxdp[5].split_rd.pkt_addr = rxp[5]->buf_iova + RTE_PKTMBUF_HEADROOM;
+		rxdp[6].split_rd.pkt_addr = rxp[6]->buf_iova + RTE_PKTMBUF_HEADROOM;
+		rxdp[7].split_rd.pkt_addr = rxp[7]->buf_iova + RTE_PKTMBUF_HEADROOM;
+	}
+
+	rx_bufq->rxrearm_start += IDPF_RXQ_REARM_THRESH;
+	if (rx_bufq->rxrearm_start >= rx_bufq->nb_rx_desc)
+		rx_bufq->rxrearm_start = 0;
+
+	rx_bufq->rxrearm_nb -= IDPF_RXQ_REARM_THRESH;
+
+	rx_id = (uint16_t)((rx_bufq->rxrearm_start == 0) ?
+			     (rx_bufq->nb_rx_desc - 1) : (rx_bufq->rxrearm_start - 1));
+
+	/* Update the tail pointer on the NIC */
+	IDPF_PCI_REG_WRITE(rx_bufq->qrx_tail, rx_id);
+}
+
+static __rte_always_inline void
+idpf_splitq_rearm(struct idpf_rx_queue *rx_bufq)
+{
+	int i;
+	uint16_t rx_id;
+	volatile union virtchnl2_rx_buf_desc *rxdp = rx_bufq->rx_ring;
+	struct rte_mempool_cache *cache =
+		rte_mempool_default_cache(rx_bufq->mp, rte_lcore_id());
+	struct rte_mbuf **rxp = &rx_bufq->sw_ring[rx_bufq->rxrearm_start];
+
+	rxdp += rx_bufq->rxrearm_start;
+
+	if (unlikely(!cache))
+		return idpf_splitq_rearm_common(rx_bufq);
+
+	/* We need to pull 'n' more MBUFs into the software ring from mempool
+	 * We inline the mempool function here, so we can vectorize the copy
+	 * from the cache into the shadow ring.
+	 */
+
+	/* Can this be satisfied from the cache? */
+	if (cache->len < IDPF_RXQ_REARM_THRESH) {
+		/* No. Backfill the cache first, and then fill from it */
+		uint32_t req = IDPF_RXQ_REARM_THRESH + (cache->size -
+							cache->len);
+
+		/* How many do we require i.e. number to fill the cache + the request */
+		int ret = rte_mempool_ops_dequeue_bulk
+				(rx_bufq->mp, &cache->objs[cache->len], req);
+		if (ret == 0) {
+			cache->len += req;
+		} else {
+			if (rx_bufq->rxrearm_nb + IDPF_RXQ_REARM_THRESH >=
+			    rx_bufq->nb_rx_desc) {
+				__m128i dma_addr0;
+
+				dma_addr0 = _mm_setzero_si128();
+				for (i = 0; i < IDPF_VPMD_DESCS_PER_LOOP; i++) {
+					rxp[i] = &rx_bufq->fake_mbuf;
+					_mm_storeu_si128((__m128i *)&rxdp[i],
+							 dma_addr0);
+				}
+			}
+			rx_bufq->rx_stats.mbuf_alloc_failed += IDPF_RXQ_REARM_THRESH;
+			return;
+		}
+	}
+
+	const __m512i iova_offsets =  _mm512_set1_epi64(offsetof
+							(struct rte_mbuf, buf_iova));
+	const __m512i headroom = _mm512_set1_epi64(RTE_PKTMBUF_HEADROOM);
+
+	/* Initialize the mbufs in vector, process 8 mbufs in one loop, taking
+	 * from mempool cache and populating both shadow and HW rings
+	 */
+	for (i = 0; i < IDPF_RXQ_REARM_THRESH / IDPF_DESCS_PER_LOOP_AVX; i++) {
+		const __m512i mbuf_ptrs = _mm512_loadu_si512
+			(&cache->objs[cache->len - IDPF_DESCS_PER_LOOP_AVX]);
+		_mm512_storeu_si512(rxp, mbuf_ptrs);
+
+		const __m512i iova_base_addrs = _mm512_i64gather_epi64
+				(_mm512_add_epi64(mbuf_ptrs, iova_offsets),
+				 0, /* base */
+				 1  /* scale */);
+		const __m512i iova_addrs = _mm512_add_epi64(iova_base_addrs,
+				headroom);
+
+		const __m512i iova_addrs_1 = _mm512_bsrli_epi128(iova_addrs, 8);
+
+		rxdp[0].split_rd.pkt_addr =
+			_mm_cvtsi128_si64(_mm512_extracti32x4_epi32(iova_addrs, 0));
+		rxdp[1].split_rd.pkt_addr =
+			_mm_cvtsi128_si64(_mm512_extracti32x4_epi32(iova_addrs_1, 0));
+		rxdp[2].split_rd.pkt_addr =
+			_mm_cvtsi128_si64(_mm512_extracti32x4_epi32(iova_addrs, 1));
+		rxdp[3].split_rd.pkt_addr =
+			_mm_cvtsi128_si64(_mm512_extracti32x4_epi32(iova_addrs_1, 1));
+		rxdp[4].split_rd.pkt_addr =
+			_mm_cvtsi128_si64(_mm512_extracti32x4_epi32(iova_addrs, 2));
+		rxdp[5].split_rd.pkt_addr =
+			_mm_cvtsi128_si64(_mm512_extracti32x4_epi32(iova_addrs_1, 2));
+		rxdp[6].split_rd.pkt_addr =
+			_mm_cvtsi128_si64(_mm512_extracti32x4_epi32(iova_addrs, 3));
+		rxdp[7].split_rd.pkt_addr =
+			_mm_cvtsi128_si64(_mm512_extracti32x4_epi32(iova_addrs_1, 3));
+
+		rxp += IDPF_DESCS_PER_LOOP_AVX;
+		rxdp += IDPF_DESCS_PER_LOOP_AVX;
+		cache->len -= IDPF_DESCS_PER_LOOP_AVX;
+	}
+
+	rx_bufq->rxrearm_start += IDPF_RXQ_REARM_THRESH;
+	if (rx_bufq->rxrearm_start >= rx_bufq->nb_rx_desc)
+		rx_bufq->rxrearm_start = 0;
+
+	rx_bufq->rxrearm_nb -= IDPF_RXQ_REARM_THRESH;
+
+	rx_id = (uint16_t)((rx_bufq->rxrearm_start == 0) ?
+			   (rx_bufq->nb_rx_desc - 1) : (rx_bufq->rxrearm_start - 1));
+
+	/* Update the tail pointer on the NIC */
+	IDPF_PCI_REG_WRITE(rx_bufq->qrx_tail, rx_id);
+}
+
+static __rte_always_inline uint16_t
+_idpf_splitq_recv_raw_pkts_avx512(struct idpf_rx_queue *rxq,
+				  struct rte_mbuf **rx_pkts,
+				  uint16_t nb_pkts)
+{
+	const uint32_t *type_table = rxq->adapter->ptype_tbl;
+	const __m256i mbuf_init = _mm256_set_epi64x(0, 0, 0,
+						    rxq->bufq2->mbuf_initializer);
+	/* only handle bufq2 here */
+	struct rte_mbuf **sw_ring = &rxq->bufq2->sw_ring[rxq->rx_tail];
+	volatile union virtchnl2_rx_desc *rxdp = rxq->rx_ring;
+
+	rxdp += rxq->rx_tail;
+
+	rte_prefetch0(rxdp);
+
+	/* nb_pkts has to be floor-aligned to IDPF_DESCS_PER_LOOP_AVX */
+	nb_pkts = RTE_ALIGN_FLOOR(nb_pkts, IDPF_DESCS_PER_LOOP_AVX);
+
+	/* See if we need to rearm the RX queue - gives the prefetch a bit
+	 * of time to act
+	 */
+	if (rxq->bufq2->rxrearm_nb > IDPF_RXQ_REARM_THRESH)
+		idpf_splitq_rearm(rxq->bufq2);
+
+	/* Before we start moving massive data around, check to see if
+	 * there is actually a packet available
+	 */
+	if (((rxdp->flex_adv_nic_3_wb.pktlen_gen_bufq_id &
+	      VIRTCHNL2_RX_FLEX_DESC_ADV_GEN_M) >>
+	     VIRTCHNL2_RX_FLEX_DESC_ADV_GEN_S) != rxq->expected_gen_id)
+		return 0;
+
+	const __m512i dd_check = _mm512_set1_epi64(1);
+	const __m512i gen_check = _mm512_set1_epi64((uint64_t)1<<46);
+
+	/* mask to shuffle from desc. to mbuf (4 descriptors)*/
+	const __m512i shuf_msk =
+		_mm512_set_epi32
+			(/* 1st descriptor */
+			 0xFFFFFFFF,    /* octet 4~7, 32bits rss */
+			 0xFFFF0504,    /* octet 2~3, low 16 bits vlan_macip */
+					/* octet 15~14, 16 bits data_len */
+			 0xFFFF0504,    /* skip high 16 bits pkt_len, zero out */
+					/* octet 15~14, low 16 bits pkt_len */
+			 0xFFFFFFFF,    /* pkt_type set as unknown */
+			 /* 2nd descriptor */
+			 0xFFFFFFFF,    /* octet 4~7, 32bits rss */
+			 0xFFFF0504,    /* octet 2~3, low 16 bits vlan_macip */
+					/* octet 15~14, 16 bits data_len */
+			 0xFFFF0504,    /* skip high 16 bits pkt_len, zero out */
+					/* octet 15~14, low 16 bits pkt_len */
+			 0xFFFFFFFF,    /* pkt_type set as unknown */
+			 /* 3rd descriptor */
+			 0xFFFFFFFF,    /* octet 4~7, 32bits rss */
+			 0xFFFF0504,    /* octet 2~3, low 16 bits vlan_macip */
+					/* octet 15~14, 16 bits data_len */
+			 0xFFFF0504,    /* skip high 16 bits pkt_len, zero out */
+					/* octet 15~14, low 16 bits pkt_len */
+			 0xFFFFFFFF,    /* pkt_type set as unknown */
+			 /* 4th descriptor */
+			 0xFFFFFFFF,    /* octet 4~7, 32bits rss */
+			 0xFFFF0504,    /* octet 2~3, low 16 bits vlan_macip */
+					/* octet 15~14, 16 bits data_len */
+			 0xFFFF0504,    /* skip high 16 bits pkt_len, zero out */
+					/* octet 15~14, low 16 bits pkt_len */
+			 0xFFFFFFFF     /* pkt_type set as unknown */
+			);
+	/**
+	 * compile-time check the above crc and shuffle layout is correct.
+	 * NOTE: the first field (lowest address) is given last in set_epi
+	 * calls above.
+	 */
+	RTE_BUILD_BUG_ON(offsetof(struct rte_mbuf, pkt_len) !=
+			 offsetof(struct rte_mbuf, rx_descriptor_fields1) + 4);
+	RTE_BUILD_BUG_ON(offsetof(struct rte_mbuf, data_len) !=
+			 offsetof(struct rte_mbuf, rx_descriptor_fields1) + 8);
+	RTE_BUILD_BUG_ON(offsetof(struct rte_mbuf, vlan_tci) !=
+			 offsetof(struct rte_mbuf, rx_descriptor_fields1) + 10);
+	RTE_BUILD_BUG_ON(offsetof(struct rte_mbuf, hash) !=
+			 offsetof(struct rte_mbuf, rx_descriptor_fields1) + 12);
+
+	uint16_t i, received;
+
+	for (i = 0, received = 0; i < nb_pkts;
+	     i += IDPF_DESCS_PER_LOOP_AVX,
+	     rxdp += IDPF_DESCS_PER_LOOP_AVX) {
+		/* step 1, copy over 8 mbuf pointers to rx_pkts array */
+		_mm256_storeu_si256((void *)&rx_pkts[i],
+				    _mm256_loadu_si256((void *)&sw_ring[i]));
+#ifdef RTE_ARCH_X86_64
+		_mm256_storeu_si256
+			((void *)&rx_pkts[i + 4],
+			 _mm256_loadu_si256((void *)&sw_ring[i + 4]));
+#endif
+
+		__m512i raw_desc0_3, raw_desc4_7;
+		const __m128i raw_desc7 =
+			_mm_load_si128((void *)(rxdp + 7));
+		rte_compiler_barrier();
+		const __m128i raw_desc6 =
+			_mm_load_si128((void *)(rxdp + 6));
+		rte_compiler_barrier();
+		const __m128i raw_desc5 =
+			_mm_load_si128((void *)(rxdp + 5));
+		rte_compiler_barrier();
+		const __m128i raw_desc4 =
+			_mm_load_si128((void *)(rxdp + 4));
+		rte_compiler_barrier();
+		const __m128i raw_desc3 =
+			_mm_load_si128((void *)(rxdp + 3));
+		rte_compiler_barrier();
+		const __m128i raw_desc2 =
+			_mm_load_si128((void *)(rxdp + 2));
+		rte_compiler_barrier();
+		const __m128i raw_desc1 =
+			_mm_load_si128((void *)(rxdp + 1));
+		rte_compiler_barrier();
+		const __m128i raw_desc0 =
+			_mm_load_si128((void *)(rxdp + 0));
+
+		raw_desc4_7 = _mm512_broadcast_i32x4(raw_desc4);
+		raw_desc4_7 = _mm512_inserti32x4(raw_desc4_7, raw_desc5, 1);
+		raw_desc4_7 = _mm512_inserti32x4(raw_desc4_7, raw_desc6, 2);
+		raw_desc4_7 = _mm512_inserti32x4(raw_desc4_7, raw_desc7, 3);
+		raw_desc0_3 = _mm512_broadcast_i32x4(raw_desc0);
+		raw_desc0_3 = _mm512_inserti32x4(raw_desc0_3, raw_desc1, 1);
+		raw_desc0_3 = _mm512_inserti32x4(raw_desc0_3, raw_desc2, 2);
+		raw_desc0_3 = _mm512_inserti32x4(raw_desc0_3, raw_desc3, 3);
+
+		/**
+		 * convert descriptors 4-7 into mbufs, adjusting length and
+		 * re-arranging fields. Then write into the mbuf
+		 */
+		const __m512i len_mask = _mm512_set_epi32(0xffffffff, 0xffffffff,
+							  0xffff3fff, 0xffffffff,
+							  0xffffffff, 0xffffffff,
+							  0xffff3fff, 0xffffffff,
+							  0xffffffff, 0xffffffff,
+							  0xffff3fff, 0xffffffff,
+							  0xffffffff, 0xffffffff,
+							  0xffff3fff, 0xffffffff);
+		const __m512i desc4_7 = _mm512_and_epi32(raw_desc4_7, len_mask);
+		__m512i mb4_7 = _mm512_shuffle_epi8(desc4_7, shuf_msk);
+
+		/**
+		 * to get packet types, shift 64-bit values down 30 bits
+		 * and so ptype is in lower 8-bits in each
+		 */
+		const __m512i ptypes4_7 = _mm512_srli_epi64(desc4_7, 16);
+		const __m256i ptypes6_7 = _mm512_extracti64x4_epi64(ptypes4_7, 1);
+		const __m256i ptypes4_5 = _mm512_extracti64x4_epi64(ptypes4_7, 0);
+		const uint8_t ptype7 = _mm256_extract_epi8(ptypes6_7, 16);
+		const uint8_t ptype6 = _mm256_extract_epi8(ptypes6_7, 0);
+		const uint8_t ptype5 = _mm256_extract_epi8(ptypes4_5, 16);
+		const uint8_t ptype4 = _mm256_extract_epi8(ptypes4_5, 0);
+
+		const __m512i ptype4_7 = _mm512_set_epi32
+			(0, 0, 0, type_table[ptype7],
+			 0, 0, 0, type_table[ptype6],
+			 0, 0, 0, type_table[ptype5],
+			 0, 0, 0, type_table[ptype4]);
+		mb4_7 = _mm512_mask_blend_epi32(0x1111, mb4_7, ptype4_7);
+
+		/**
+		 * convert descriptors 0-3 into mbufs, adjusting length and
+		 * re-arranging fields. Then write into the mbuf
+		 */
+		const __m512i desc0_3 = _mm512_and_epi32(raw_desc0_3, len_mask);
+		__m512i mb0_3 = _mm512_shuffle_epi8(desc0_3, shuf_msk);
+
+		/* get the packet types */
+		const __m512i ptypes0_3 = _mm512_srli_epi64(desc0_3, 16);
+		const __m256i ptypes2_3 = _mm512_extracti64x4_epi64(ptypes0_3, 1);
+		const __m256i ptypes0_1 = _mm512_extracti64x4_epi64(ptypes0_3, 0);
+		const uint8_t ptype3 = _mm256_extract_epi8(ptypes2_3, 16);
+		const uint8_t ptype2 = _mm256_extract_epi8(ptypes2_3, 0);
+		const uint8_t ptype1 = _mm256_extract_epi8(ptypes0_1, 16);
+		const uint8_t ptype0 = _mm256_extract_epi8(ptypes0_1, 0);
+
+		const __m512i ptype0_3 = _mm512_set_epi32
+			(0, 0, 0, type_table[ptype3],
+			 0, 0, 0, type_table[ptype2],
+			 0, 0, 0, type_table[ptype1],
+			 0, 0, 0, type_table[ptype0]);
+		mb0_3 = _mm512_mask_blend_epi32(0x1111, mb0_3, ptype0_3);
+
+		/**
+		 * use permute/extract to get status and generation bit content
+		 * After the operations, the packets status flags are in the
+		 * order (hi->lo): [1, 3, 5, 7, 0, 2, 4, 6]
+		 */
+
+		const __m512i dd_permute_msk = _mm512_set_epi64
+			(11, 15, 3, 7, 9, 13, 1, 5);
+		const __m512i status0_7 = _mm512_permutex2var_epi64
+			(raw_desc4_7, dd_permute_msk, raw_desc0_3);
+		const __m512i gen_permute_msk = _mm512_set_epi64
+			(10, 14, 2, 6, 8, 12, 0, 4);
+		const __m512i raw_gen0_7 = _mm512_permutex2var_epi64
+			(raw_desc4_7, gen_permute_msk, raw_desc0_3);
+
+		/* now do flag manipulation */
+
+		/**
+		 * At this point, we have the 8 sets of flags in the low 16-bits
+		 * of each 32-bit value in vlan0.
+		 * We want to extract these, and merge them with the mbuf init
+		 * data so we can do a single write to the mbuf to set the flags
+		 * and all the other initialization fields. Extracting the
+		 * appropriate flags means that we have to do a shift and blend
+		 * for each mbuf before we do the write. However, we can also
+		 * add in the previously computed rx_descriptor fields to
+		 * make a single 256-bit write per mbuf
+		 */
+		/* check the structure matches expectations */
+		RTE_BUILD_BUG_ON(offsetof(struct rte_mbuf, ol_flags) !=
+				 offsetof(struct rte_mbuf, rearm_data) + 8);
+		RTE_BUILD_BUG_ON(offsetof(struct rte_mbuf, rearm_data) !=
+				 RTE_ALIGN(offsetof(struct rte_mbuf,
+						    rearm_data),
+						    16));
+				/* build up data and do writes */
+		__m256i rearm0, rearm1, rearm2, rearm3, rearm4, rearm5,
+			rearm6, rearm7;
+		const __m256i mb4_5 = _mm512_extracti64x4_epi64(mb4_7, 0);
+		const __m256i mb6_7 = _mm512_extracti64x4_epi64(mb4_7, 1);
+		const __m256i mb0_1 = _mm512_extracti64x4_epi64(mb0_3, 0);
+		const __m256i mb2_3 = _mm512_extracti64x4_epi64(mb0_3, 1);
+
+		rearm6 = _mm256_permute2f128_si256(mbuf_init, mb6_7, 0x20);
+		rearm4 = _mm256_permute2f128_si256(mbuf_init, mb4_5, 0x20);
+		rearm2 = _mm256_permute2f128_si256(mbuf_init, mb2_3, 0x20);
+		rearm0 = _mm256_permute2f128_si256(mbuf_init, mb0_1, 0x20);
+
+		/* write to mbuf */
+		_mm256_storeu_si256((__m256i *)&rx_pkts[i + 6]->rearm_data,
+				    rearm6);
+		_mm256_storeu_si256((__m256i *)&rx_pkts[i + 4]->rearm_data,
+				    rearm4);
+		_mm256_storeu_si256((__m256i *)&rx_pkts[i + 2]->rearm_data,
+				    rearm2);
+		_mm256_storeu_si256((__m256i *)&rx_pkts[i + 0]->rearm_data,
+				    rearm0);
+
+		rearm7 = _mm256_blend_epi32(mbuf_init, mb6_7, 0xF0);
+		rearm5 = _mm256_blend_epi32(mbuf_init, mb4_5, 0xF0);
+		rearm3 = _mm256_blend_epi32(mbuf_init, mb2_3, 0xF0);
+		rearm1 = _mm256_blend_epi32(mbuf_init, mb0_1, 0xF0);
+
+		/* again write to mbufs */
+		_mm256_storeu_si256((__m256i *)&rx_pkts[i + 7]->rearm_data,
+				    rearm7);
+		_mm256_storeu_si256((__m256i *)&rx_pkts[i + 5]->rearm_data,
+				    rearm5);
+		_mm256_storeu_si256((__m256i *)&rx_pkts[i + 3]->rearm_data,
+				    rearm3);
+		_mm256_storeu_si256((__m256i *)&rx_pkts[i + 1]->rearm_data,
+				    rearm1);
+
+		const __mmask8 dd_mask = _mm512_cmpeq_epi64_mask(
+			_mm512_and_epi64(status0_7, dd_check), dd_check);
+		const __mmask8 gen_mask = _mm512_cmpeq_epi64_mask(
+			_mm512_and_epi64(raw_gen0_7, gen_check),
+			_mm512_set1_epi64((uint64_t)rxq->expected_gen_id << 46));
+		const __mmask8 recv_mask = _kand_mask8(dd_mask, gen_mask);
+		uint16_t burst = __builtin_popcount(_cvtmask8_u32(recv_mask));
+
+		received += burst;
+		if (burst != IDPF_DESCS_PER_LOOP_AVX)
+			break;
+	}
+
+	/* update tail pointers */
+	rxq->rx_tail += received;
+	rxq->expected_gen_id ^= ((rxq->rx_tail & rxq->nb_rx_desc) != 0);
+	rxq->rx_tail &= (rxq->nb_rx_desc - 1);
+	if ((rxq->rx_tail & 1) == 1 && received > 1) { /* keep aligned */
+		rxq->rx_tail--;
+		received--;
+	}
+
+	rxq->bufq2->rxrearm_nb += received;
+	return received;
+}
+
+/* only bufq2 can receive pkts */
+uint16_t
+idpf_splitq_recv_pkts_avx512(void *rx_queue, struct rte_mbuf **rx_pkts,
+			     uint16_t nb_pkts)
+{
+	return _idpf_splitq_recv_raw_pkts_avx512(rx_queue, rx_pkts,
+						 nb_pkts);
+}
+
 static __rte_always_inline int
-idpf_tx_free_bufs_avx512(struct idpf_tx_queue *txq)
+idpf_tx_singleq_free_bufs_avx512(struct idpf_tx_queue *txq)
 {
 	struct idpf_tx_vec_entry *txep;
 	uint32_t n;
@@ -657,7 +1111,7 @@ tx_backlog_entry_avx512(struct idpf_tx_vec_entry *txep,
 
 #define IDPF_FLEX_TXD_QW1_BUF_SZ_S 48
 static __rte_always_inline void
-idpf_vtx1(volatile struct idpf_flex_tx_desc *txdp,
+idpf_singleq_vtx1(volatile struct idpf_flex_tx_desc *txdp,
 	  struct rte_mbuf *pkt, uint64_t flags)
 {
 	uint64_t high_qw =
@@ -673,7 +1127,7 @@ idpf_vtx1(volatile struct idpf_flex_tx_desc *txdp,
 #define IDPF_TX_LEN_MASK 0xAA
 #define IDPF_TX_OFF_MASK 0x55
 static __rte_always_inline void
-idpf_vtx(volatile struct idpf_flex_tx_desc *txdp,
+idpf_singleq_vtx(volatile struct idpf_flex_tx_desc *txdp,
 	 struct rte_mbuf **pkt, uint16_t nb_pkts,  uint64_t flags)
 {
 	const uint64_t hi_qw_tmpl = (IDPF_TX_DESC_DTYPE_FLEX_DATA  |
@@ -681,7 +1135,7 @@ idpf_vtx(volatile struct idpf_flex_tx_desc *txdp,
 
 	/* if unaligned on 32-bit boundary, do one to align */
 	if (((uintptr_t)txdp & 0x1F) != 0 && nb_pkts != 0) {
-		idpf_vtx1(txdp, *pkt, flags);
+		idpf_singleq_vtx1(txdp, *pkt, flags);
 		nb_pkts--, txdp++, pkt++;
 	}
 
@@ -719,14 +1173,14 @@ idpf_vtx(volatile struct idpf_flex_tx_desc *txdp,
 
 	/* do any last ones */
 	while (nb_pkts) {
-		idpf_vtx1(txdp, *pkt, flags);
+		idpf_singleq_vtx1(txdp, *pkt, flags);
 		txdp++, pkt++, nb_pkts--;
 	}
 }
 
 static __rte_always_inline uint16_t
-idpf_xmit_fixed_burst_vec_avx512(void *tx_queue, struct rte_mbuf **tx_pkts,
-				 uint16_t nb_pkts)
+idpf_singleq_xmit_fixed_burst_vec_avx512(void *tx_queue, struct rte_mbuf **tx_pkts,
+					 uint16_t nb_pkts)
 {
 	struct idpf_tx_queue *txq = tx_queue;
 	volatile struct idpf_flex_tx_desc *txdp;
@@ -739,7 +1193,7 @@ idpf_xmit_fixed_burst_vec_avx512(void *tx_queue, struct rte_mbuf **tx_pkts,
 	nb_pkts = RTE_MIN(nb_pkts, txq->rs_thresh);
 
 	if (txq->nb_free < txq->free_thresh)
-		idpf_tx_free_bufs_avx512(txq);
+		idpf_tx_singleq_free_bufs_avx512(txq);
 
 	nb_pkts = (uint16_t)RTE_MIN(txq->nb_free, nb_pkts);
 	nb_commit = nb_pkts;
@@ -757,11 +1211,11 @@ idpf_xmit_fixed_burst_vec_avx512(void *tx_queue, struct rte_mbuf **tx_pkts,
 	if (nb_commit >= n) {
 		tx_backlog_entry_avx512(txep, tx_pkts, n);
 
-		idpf_vtx(txdp, tx_pkts, n - 1, flags);
+		idpf_singleq_vtx(txdp, tx_pkts, n - 1, flags);
 		tx_pkts += (n - 1);
 		txdp += (n - 1);
 
-		idpf_vtx1(txdp, *tx_pkts++, rs);
+		idpf_singleq_vtx1(txdp, *tx_pkts++, rs);
 
 		nb_commit = (uint16_t)(nb_commit - n);
 
@@ -776,7 +1230,7 @@ idpf_xmit_fixed_burst_vec_avx512(void *tx_queue, struct rte_mbuf **tx_pkts,
 
 	tx_backlog_entry_avx512(txep, tx_pkts, nb_commit);
 
-	idpf_vtx(txdp, tx_pkts, nb_commit, flags);
+	idpf_singleq_vtx(txdp, tx_pkts, nb_commit, flags);
 
 	tx_id = (uint16_t)(tx_id + nb_commit);
 	if (tx_id > txq->next_rs) {
@@ -795,7 +1249,7 @@ idpf_xmit_fixed_burst_vec_avx512(void *tx_queue, struct rte_mbuf **tx_pkts,
 }
 
 static __rte_always_inline uint16_t
-idpf_xmit_pkts_vec_avx512_cmn(void *tx_queue, struct rte_mbuf **tx_pkts,
+idpf_singleq_xmit_pkts_vec_avx512_cmn(void *tx_queue, struct rte_mbuf **tx_pkts,
 			      uint16_t nb_pkts)
 {
 	uint16_t nb_tx = 0;
@@ -805,7 +1259,7 @@ idpf_xmit_pkts_vec_avx512_cmn(void *tx_queue, struct rte_mbuf **tx_pkts,
 		uint16_t ret, num;
 
 		num = (uint16_t)RTE_MIN(nb_pkts, txq->rs_thresh);
-		ret = idpf_xmit_fixed_burst_vec_avx512(tx_queue, &tx_pkts[nb_tx],
+		ret = idpf_singleq_xmit_fixed_burst_vec_avx512(tx_queue, &tx_pkts[nb_tx],
 						       num);
 		nb_tx += ret;
 		nb_pkts -= ret;
@@ -820,11 +1274,313 @@ uint16_t
 idpf_singleq_xmit_pkts_avx512(void *tx_queue, struct rte_mbuf **tx_pkts,
 			     uint16_t nb_pkts)
 {
-	return idpf_xmit_pkts_vec_avx512_cmn(tx_queue, tx_pkts, nb_pkts);
+	return idpf_singleq_xmit_pkts_vec_avx512_cmn(tx_queue, tx_pkts, nb_pkts);
+}
+
+static __rte_always_inline void
+idpf_splitq_scan_cq_ring(struct idpf_tx_queue *cq)
+{
+	struct idpf_splitq_tx_compl_desc *compl_ring;
+	struct idpf_tx_queue *txq;
+	uint16_t genid, txq_qid, cq_qid, i;
+	uint8_t ctype;
+
+	cq_qid = cq->tx_tail;
+
+	for (i = 0; i < IDPD_TXQ_SCAN_CQ_THRESH; i++) {
+		if (cq_qid == cq->nb_tx_desc) {
+			cq_qid = 0;
+			cq->expected_gen_id ^= 1;
+		}
+		compl_ring = &cq->compl_ring[cq_qid];
+		genid = (compl_ring->qid_comptype_gen &
+			rte_cpu_to_le_64(IDPF_TXD_COMPLQ_GEN_M)) >> IDPF_TXD_COMPLQ_GEN_S;
+		if (genid != cq->expected_gen_id)
+			break;
+		ctype = (rte_le_to_cpu_16(compl_ring->qid_comptype_gen) &
+			IDPF_TXD_COMPLQ_COMPL_TYPE_M) >> IDPF_TXD_COMPLQ_COMPL_TYPE_S;
+		txq_qid = (rte_le_to_cpu_16(compl_ring->qid_comptype_gen) &
+			IDPF_TXD_COMPLQ_QID_M) >> IDPF_TXD_COMPLQ_QID_S;
+		txq = cq->txqs[txq_qid - cq->tx_start_qid];
+		txq->ctype[ctype]++;
+		cq_qid++;
+	}
+
+	cq->tx_tail = cq_qid;
+}
+
+static __rte_always_inline int
+idpf_tx_splitq_free_bufs_avx512(struct idpf_tx_queue *txq)
+{
+	struct idpf_tx_vec_entry *txep;
+	uint32_t n;
+	uint32_t i;
+	int nb_free = 0;
+	struct rte_mbuf *m, *free[txq->rs_thresh];
+
+	n = txq->rs_thresh;
+
+	 /* first buffer to free from S/W ring is at index
+	  * tx_next_dd - (tx_rs_thresh-1)
+	  */
+	txep = (void *)txq->sw_ring;
+	txep += txq->next_dd - (n - 1);
+
+	if (txq->offloads & IDPF_TX_OFFLOAD_MBUF_FAST_FREE && (n & 31) == 0) {
+		struct rte_mempool *mp = txep[0].mbuf->pool;
+		struct rte_mempool_cache *cache = rte_mempool_default_cache(mp,
+								rte_lcore_id());
+		void **cache_objs;
+
+		if (!cache || cache->len == 0)
+			goto normal;
+
+		cache_objs = &cache->objs[cache->len];
+
+		if (n > RTE_MEMPOOL_CACHE_MAX_SIZE) {
+			rte_mempool_ops_enqueue_bulk(mp, (void *)txep, n);
+			goto done;
+		}
+
+		/* The cache follows the following algorithm
+		 *   1. Add the objects to the cache
+		 *   2. Anything greater than the cache min value (if it crosses the
+		 *   cache flush threshold) is flushed to the ring.
+		 */
+		/* Add elements back into the cache */
+		uint32_t copied = 0;
+		/* n is multiple of 32 */
+		while (copied < n) {
+			const __m512i a = _mm512_loadu_si512(&txep[copied]);
+			const __m512i b = _mm512_loadu_si512(&txep[copied + 8]);
+			const __m512i c = _mm512_loadu_si512(&txep[copied + 16]);
+			const __m512i d = _mm512_loadu_si512(&txep[copied + 24]);
+
+			_mm512_storeu_si512(&cache_objs[copied], a);
+			_mm512_storeu_si512(&cache_objs[copied + 8], b);
+			_mm512_storeu_si512(&cache_objs[copied + 16], c);
+			_mm512_storeu_si512(&cache_objs[copied + 24], d);
+			copied += 32;
+		}
+		cache->len += n;
+
+		if (cache->len >= cache->flushthresh) {
+			rte_mempool_ops_enqueue_bulk(mp,
+						     &cache->objs[cache->size],
+						     cache->len - cache->size);
+			cache->len = cache->size;
+		}
+		goto done;
+	}
+
+normal:
+	m = rte_pktmbuf_prefree_seg(txep[0].mbuf);
+	if (likely(m)) {
+		free[0] = m;
+		nb_free = 1;
+		for (i = 1; i < n; i++) {
+			m = rte_pktmbuf_prefree_seg(txep[i].mbuf);
+			if (likely(m)) {
+				if (likely(m->pool == free[0]->pool)) {
+					free[nb_free++] = m;
+				} else {
+					rte_mempool_put_bulk(free[0]->pool,
+							     (void *)free,
+							     nb_free);
+					free[0] = m;
+					nb_free = 1;
+				}
+			}
+		}
+		rte_mempool_put_bulk(free[0]->pool, (void **)free, nb_free);
+	} else {
+		for (i = 1; i < n; i++) {
+			m = rte_pktmbuf_prefree_seg(txep[i].mbuf);
+			if (m)
+				rte_mempool_put(m->pool, m);
+		}
+	}
+
+done:
+	/* buffers were freed, update counters */
+	txq->nb_free = (uint16_t)(txq->nb_free + txq->rs_thresh);
+	txq->next_dd = (uint16_t)(txq->next_dd + txq->rs_thresh);
+	if (txq->next_dd >= txq->nb_tx_desc)
+		txq->next_dd = (uint16_t)(txq->rs_thresh - 1);
+	txq->ctype[IDPF_TXD_COMPLT_RS] -= txq->rs_thresh;
+
+	return txq->rs_thresh;
+}
+
+#define IDPF_TXD_FLEX_QW1_TX_BUF_SZ_S	48
+
+static __rte_always_inline void
+idpf_splitq_vtx1(volatile struct idpf_flex_tx_sched_desc *txdp,
+	  struct rte_mbuf *pkt, uint64_t flags)
+{
+	uint64_t high_qw =
+		(IDPF_TX_DESC_DTYPE_FLEX_FLOW_SCHE |
+		 ((uint64_t)flags) |
+		 ((uint64_t)pkt->data_len << IDPF_TXD_FLEX_QW1_TX_BUF_SZ_S));
+
+	__m128i descriptor = _mm_set_epi64x(high_qw,
+					    pkt->buf_iova + pkt->data_off);
+	_mm_storeu_si128((__m128i *)txdp, descriptor);
+}
+
+static __rte_always_inline void
+idpf_splitq_vtx(volatile struct idpf_flex_tx_sched_desc *txdp,
+	 struct rte_mbuf **pkt, uint16_t nb_pkts,  uint64_t flags)
+{
+	const uint64_t hi_qw_tmpl = (IDPF_TX_DESC_DTYPE_FLEX_FLOW_SCHE  |
+			((uint64_t)flags));
+
+	/* if unaligned on 32-bit boundary, do one to align */
+	if (((uintptr_t)txdp & 0x1F) != 0 && nb_pkts != 0) {
+		idpf_splitq_vtx1(txdp, *pkt, flags);
+		nb_pkts--, txdp++, pkt++;
+	}
+
+	/* do 4 at a time while possible, in bursts */
+	for (; nb_pkts > 3; txdp += 4, pkt += 4, nb_pkts -= 4) {
+		uint64_t hi_qw3 =
+			hi_qw_tmpl |
+			((uint64_t)pkt[3]->data_len <<
+			 IDPF_TXD_FLEX_QW1_TX_BUF_SZ_S);
+		uint64_t hi_qw2 =
+			hi_qw_tmpl |
+			((uint64_t)pkt[2]->data_len <<
+			 IDPF_TXD_FLEX_QW1_TX_BUF_SZ_S);
+		uint64_t hi_qw1 =
+			hi_qw_tmpl |
+			((uint64_t)pkt[1]->data_len <<
+			 IDPF_TXD_FLEX_QW1_TX_BUF_SZ_S);
+		uint64_t hi_qw0 =
+			hi_qw_tmpl |
+			((uint64_t)pkt[0]->data_len <<
+			 IDPF_TXD_FLEX_QW1_TX_BUF_SZ_S);
+
+		__m512i desc0_3 =
+			_mm512_set_epi64
+				(hi_qw3,
+				 pkt[3]->buf_iova + pkt[3]->data_off,
+				 hi_qw2,
+				 pkt[2]->buf_iova + pkt[2]->data_off,
+				 hi_qw1,
+				 pkt[1]->buf_iova + pkt[1]->data_off,
+				 hi_qw0,
+				 pkt[0]->buf_iova + pkt[0]->data_off);
+		_mm512_storeu_si512((void *)txdp, desc0_3);
+	}
+
+	/* do any last ones */
+	while (nb_pkts) {
+		idpf_splitq_vtx1(txdp, *pkt, flags);
+		txdp++, pkt++, nb_pkts--;
+	}
+}
+
+static __rte_always_inline uint16_t
+idpf_splitq_xmit_fixed_burst_vec_avx512(void *tx_queue, struct rte_mbuf **tx_pkts,
+					uint16_t nb_pkts)
+{
+	struct idpf_tx_queue *txq = (struct idpf_tx_queue *)tx_queue;
+	volatile struct idpf_flex_tx_sched_desc *txdp;
+	struct idpf_tx_vec_entry *txep;
+	uint16_t n, nb_commit, tx_id;
+	/* bit2 is reserved and must be set to 1 according to Spec */
+	uint64_t cmd_dtype = IDPF_TXD_FLEX_FLOW_CMD_EOP;
+
+	tx_id = txq->tx_tail;
+
+	/* cross rx_thresh boundary is not allowed */
+	nb_pkts = RTE_MIN(nb_pkts, txq->rs_thresh);
+
+	nb_commit = nb_pkts = (uint16_t)RTE_MIN(txq->nb_free, nb_pkts);
+	if (unlikely(nb_pkts == 0))
+		return 0;
+
+	tx_id = txq->tx_tail;
+	txdp = &txq->desc_ring[tx_id];
+	txep = (void *)txq->sw_ring;
+	txep += tx_id;
+
+	txq->nb_free = (uint16_t)(txq->nb_free - nb_pkts);
+
+	n = (uint16_t)(txq->nb_tx_desc - tx_id);
+	if (nb_commit >= n) {
+		tx_backlog_entry_avx512(txep, tx_pkts, n);
+
+		idpf_splitq_vtx((void *)txdp, tx_pkts, n - 1, cmd_dtype);
+		tx_pkts += (n - 1);
+		txdp += (n - 1);
+
+		idpf_splitq_vtx1((void *)txdp, *tx_pkts++, cmd_dtype);
+
+		nb_commit = (uint16_t)(nb_commit - n);
+
+		tx_id = 0;
+		txq->next_rs = (uint16_t)(txq->rs_thresh - 1);
+
+		/* avoid reach the end of ring */
+		txdp = &txq->desc_ring[tx_id];
+		txep = (void *)txq->sw_ring;
+		txep += tx_id;
+	}
+
+	tx_backlog_entry_avx512(txep, tx_pkts, nb_commit);
+
+	idpf_splitq_vtx((void *)txdp, tx_pkts, nb_commit, cmd_dtype);
+
+	tx_id = (uint16_t)(tx_id + nb_commit);
+	if (tx_id > txq->next_rs)
+		txq->next_rs =
+			(uint16_t)(txq->next_rs + txq->rs_thresh);
+
+	txq->tx_tail = tx_id;
+
+	IDPF_PCI_REG_WRITE(txq->qtx_tail, txq->tx_tail);
+
+	return nb_pkts;
+}
+
+static __rte_always_inline uint16_t
+idpf_splitq_xmit_pkts_vec_avx512_cmn(void *tx_queue, struct rte_mbuf **tx_pkts,
+				     uint16_t nb_pkts)
+{
+	struct idpf_tx_queue *txq = (struct idpf_tx_queue *)tx_queue;
+	uint16_t nb_tx = 0;
+
+	while (nb_pkts) {
+		uint16_t ret, num;
+
+		idpf_splitq_scan_cq_ring(txq->complq);
+
+		if (txq->ctype[IDPF_TXD_COMPLT_RS] > txq->free_thresh)
+			idpf_tx_splitq_free_bufs_avx512(txq);
+
+		num = (uint16_t)RTE_MIN(nb_pkts, txq->rs_thresh);
+		ret = idpf_splitq_xmit_fixed_burst_vec_avx512(tx_queue,
+							      &tx_pkts[nb_tx],
+							      num);
+		nb_tx += ret;
+		nb_pkts -= ret;
+		if (ret < num)
+			break;
+	}
+
+	return nb_tx;
+}
+
+uint16_t
+idpf_splitq_xmit_pkts_avx512(void *tx_queue, struct rte_mbuf **tx_pkts,
+			     uint16_t nb_pkts)
+{
+	return idpf_splitq_xmit_pkts_vec_avx512_cmn(tx_queue, tx_pkts, nb_pkts);
 }
 
 static inline void
-idpf_singleq_tx_release_mbufs_avx512(struct idpf_tx_queue *txq)
+idpf_tx_release_mbufs_avx512(struct idpf_tx_queue *txq)
 {
 	unsigned int i;
 	const uint16_t max_desc = (uint16_t)(txq->nb_tx_desc - 1);
@@ -843,13 +1599,16 @@ idpf_singleq_tx_release_mbufs_avx512(struct idpf_tx_queue *txq)
 	}
 }
 
-static const struct idpf_txq_ops avx512_singleq_tx_vec_ops = {
-	.release_mbufs = idpf_singleq_tx_release_mbufs_avx512,
+static const struct idpf_txq_ops avx512_tx_vec_ops = {
+	.release_mbufs = idpf_tx_release_mbufs_avx512,
 };
 
 int __rte_cold
-idpf_singleq_tx_vec_setup_avx512(struct idpf_tx_queue *txq)
+idpf_tx_vec_setup_avx512(struct idpf_tx_queue *txq)
 {
-	txq->ops = &avx512_singleq_tx_vec_ops;
+	if (!txq)
+		return 0;
+
+	txq->ops = &avx512_tx_vec_ops;
 	return 0;
 }
diff --git a/drivers/common/idpf/version.map b/drivers/common/idpf/version.map
index 33747a5c69..7018a1d695 100644
--- a/drivers/common/idpf/version.map
+++ b/drivers/common/idpf/version.map
@@ -44,9 +44,12 @@ INTERNAL {
 	idpf_singleq_xmit_pkts;
 	idpf_prep_pkts;
 	idpf_singleq_rx_vec_setup;
-	idpf_singleq_tx_vec_setup_avx512;
+	idpf_splitq_rx_vec_setup;
+	idpf_tx_vec_setup_avx512;
 	idpf_singleq_recv_pkts_avx512;
+	idpf_splitq_recv_pkts_avx512;
 	idpf_singleq_xmit_pkts_avx512;
+	idpf_splitq_xmit_pkts_avx512;
 
 	local: *;
 };
diff --git a/drivers/net/idpf/idpf_rxtx.c b/drivers/net/idpf/idpf_rxtx.c
index b6d4e5abd0..e30d7c56ee 100644
--- a/drivers/net/idpf/idpf_rxtx.c
+++ b/drivers/net/idpf/idpf_rxtx.c
@@ -761,7 +761,8 @@ idpf_set_rx_function(struct rte_eth_dev *dev)
 		if (rte_vect_get_max_simd_bitwidth() >= RTE_VECT_SIMD_512)
 #ifdef CC_AVX512_SUPPORT
 			if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX512F) == 1 &&
-			    rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX512BW) == 1)
+			    rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX512BW) == 1 &&
+			    rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX512DQ))
 				vport->rx_use_avx512 = true;
 #else
 		PMD_DRV_LOG(NOTICE,
@@ -774,6 +775,20 @@ idpf_set_rx_function(struct rte_eth_dev *dev)
 
 #ifdef RTE_ARCH_X86
 	if (vport->rxq_model == VIRTCHNL2_QUEUE_MODEL_SPLIT) {
+#ifdef RTE_ARCH_X86
+		if (vport->rx_vec_allowed) {
+			for (i = 0; i < dev->data->nb_tx_queues; i++) {
+				rxq = dev->data->rx_queues[i];
+				(void)idpf_splitq_rx_vec_setup(rxq);
+			}
+#ifdef CC_AVX512_SUPPORT
+			if (vport->rx_use_avx512) {
+				dev->rx_pkt_burst = idpf_splitq_recv_pkts_avx512;
+				return;
+			}
+#endif
+		}
+#endif
 		dev->rx_pkt_burst = idpf_splitq_recv_pkts;
 	} else {
 		if (vport->rx_vec_allowed) {
@@ -809,14 +824,22 @@ idpf_set_tx_function(struct rte_eth_dev *dev)
 	int i;
 #endif /* CC_AVX512_SUPPORT */
 
-	if (idpf_rx_vec_dev_check_default(dev) == IDPF_VECTOR_PATH &&
+	if (idpf_tx_vec_dev_check_default(dev) == IDPF_VECTOR_PATH &&
 	    rte_vect_get_max_simd_bitwidth() >= RTE_VECT_SIMD_128) {
 		vport->tx_vec_allowed = true;
 		if (rte_vect_get_max_simd_bitwidth() >= RTE_VECT_SIMD_512)
 #ifdef CC_AVX512_SUPPORT
+		{
 			if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX512F) == 1 &&
 			    rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX512BW) == 1)
 				vport->tx_use_avx512 = true;
+			if (vport->tx_use_avx512) {
+				for (i = 0; i < dev->data->nb_tx_queues; i++) {
+					txq = dev->data->tx_queues[i];
+					idpf_tx_vec_setup_avx512(txq);
+				}
+			}
+		}
 #else
 		PMD_DRV_LOG(NOTICE,
 			    "AVX512 is not supported in build env");
@@ -827,6 +850,17 @@ idpf_set_tx_function(struct rte_eth_dev *dev)
 #endif /* RTE_ARCH_X86 */
 
 	if (vport->txq_model == VIRTCHNL2_QUEUE_MODEL_SPLIT) {
+#ifdef RTE_ARCH_X86
+		if (vport->tx_vec_allowed) {
+#ifdef CC_AVX512_SUPPORT
+			if (vport->tx_use_avx512) {
+				dev->tx_pkt_burst = idpf_splitq_xmit_pkts_avx512;
+				dev->tx_pkt_prepare = idpf_prep_pkts;
+				return;
+			}
+#endif
+		}
+#endif
 		dev->tx_pkt_burst = idpf_splitq_xmit_pkts;
 		dev->tx_pkt_prepare = idpf_prep_pkts;
 	} else {
@@ -834,12 +868,6 @@ idpf_set_tx_function(struct rte_eth_dev *dev)
 		if (vport->tx_vec_allowed) {
 #ifdef CC_AVX512_SUPPORT
 			if (vport->tx_use_avx512) {
-				for (i = 0; i < dev->data->nb_tx_queues; i++) {
-					txq = dev->data->tx_queues[i];
-					if (txq == NULL)
-						continue;
-					idpf_singleq_tx_vec_setup_avx512(txq);
-				}
 				dev->tx_pkt_burst = idpf_singleq_xmit_pkts_avx512;
 				dev->tx_pkt_prepare = idpf_prep_pkts;
 				return;
diff --git a/drivers/net/idpf/idpf_rxtx_vec_common.h b/drivers/net/idpf/idpf_rxtx_vec_common.h
index 0f4e10e154..650d81f596 100644
--- a/drivers/net/idpf/idpf_rxtx_vec_common.h
+++ b/drivers/net/idpf/idpf_rxtx_vec_common.h
@@ -63,16 +63,27 @@ idpf_tx_vec_queue_default(struct idpf_tx_queue *txq)
 	return IDPF_VECTOR_PATH;
 }
 
+static inline int
+idpf_rx_splitq_vec_default(struct idpf_rx_queue *rxq)
+{
+	if (rxq->bufq2->rx_buf_len < rxq->max_pkt_len)
+		return -1;
+
+	return IDPF_VECTOR_PATH;
+}
+
 static inline int
 idpf_rx_vec_dev_check_default(struct rte_eth_dev *dev)
 {
-	int i;
+	struct idpf_vport *vport = dev->data->dev_private;
 	struct idpf_rx_queue *rxq;
-	int ret = 0;
+	int i, ret = 0;
 
 	for (i = 0; i < dev->data->nb_rx_queues; i++) {
 		rxq = dev->data->rx_queues[i];
-		ret = (idpf_rx_vec_queue_default(rxq));
+		ret = idpf_rx_vec_queue_default(rxq) ||
+		      (vport->rxq_model == VIRTCHNL2_QUEUE_MODEL_SPLIT &&
+		       idpf_rx_splitq_vec_default(rxq));
 		if (ret < 0)
 			return -1;
 	}
-- 
2.34.1