[PATCH v18 17/18] net/idpf: add AVX512 data path for single queue model

[beilei.xing@intel.com]

From: Junfeng Guo <junfeng.guo@intel.com>

Add support of AVX512 vector data path for single queue model.

Signed-off-by: Wenjun Wu <wenjun1.wu@intel.com>
Signed-off-by: Junfeng Guo <junfeng.guo@intel.com>
---
 doc/guides/nics/idpf.rst                |  19 +
 drivers/net/idpf/idpf_ethdev.c          |   3 +-
 drivers/net/idpf/idpf_ethdev.h          |   5 +
 drivers/net/idpf/idpf_rxtx.c            | 145 ++++
 drivers/net/idpf/idpf_rxtx.h            |  21 +
 drivers/net/idpf/idpf_rxtx_vec_avx512.c | 857 ++++++++++++++++++++++++
 drivers/net/idpf/idpf_rxtx_vec_common.h | 100 +++
 drivers/net/idpf/meson.build            |  28 +
 8 files changed, 1177 insertions(+), 1 deletion(-)
 create mode 100644 drivers/net/idpf/idpf_rxtx_vec_avx512.c
 create mode 100644 drivers/net/idpf/idpf_rxtx_vec_common.h

diff --git a/doc/guides/nics/idpf.rst b/doc/guides/nics/idpf.rst
index c1001d5d0c..3039c61748 100644
--- a/doc/guides/nics/idpf.rst
+++ b/doc/guides/nics/idpf.rst
@@ -64,3 +64,22 @@ Refer to the document :ref:`compiling and testing a PMD for a NIC <pmd_build_and
 for details.
 
 
+Features
+--------
+
+Vector PMD
+~~~~~~~~~~
+
+Vector path for RX and TX path are selected automatically. The paths
+are chosen based on 2 conditions.
+
+- ``CPU``
+  On the X86 platform, the driver checks if the CPU supports AVX512.
+  If the CPU supports AVX512 and EAL argument ``--force-max-simd-bitwidth``
+  is set to 512, AVX512 paths will be chosen.
+
+- ``Offload features``
+  The supported HW offload features are described in the document idpf.ini,
+  A value "P" means the offload feature is not supported by vector path.
+  If any not supported features are used, idpf vector PMD is disabled and the
+  scalar paths are chosen.
diff --git a/drivers/net/idpf/idpf_ethdev.c b/drivers/net/idpf/idpf_ethdev.c
index 084426260c..cd4ebcc2c6 100644
--- a/drivers/net/idpf/idpf_ethdev.c
+++ b/drivers/net/idpf/idpf_ethdev.c
@@ -69,7 +69,8 @@ idpf_dev_info_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
 
 	dev_info->tx_offload_capa =
 		RTE_ETH_TX_OFFLOAD_TCP_TSO		|
-		RTE_ETH_TX_OFFLOAD_MULTI_SEGS;
+		RTE_ETH_TX_OFFLOAD_MULTI_SEGS		|
+		RTE_ETH_TX_OFFLOAD_MBUF_FAST_FREE;
 
 	dev_info->default_txconf = (struct rte_eth_txconf) {
 		.tx_free_thresh = IDPF_DEFAULT_TX_FREE_THRESH,
diff --git a/drivers/net/idpf/idpf_ethdev.h b/drivers/net/idpf/idpf_ethdev.h
index 8d0804f603..7d54e5db60 100644
--- a/drivers/net/idpf/idpf_ethdev.h
+++ b/drivers/net/idpf/idpf_ethdev.h
@@ -162,6 +162,11 @@ struct idpf_adapter {
 	uint32_t max_txq_per_msg;
 
 	uint32_t ptype_tbl[IDPF_MAX_PKT_TYPE] __rte_cache_min_aligned;
+
+	bool rx_vec_allowed;
+	bool tx_vec_allowed;
+	bool rx_use_avx512;
+	bool tx_use_avx512;
 };
 
 TAILQ_HEAD(idpf_adapter_list, idpf_adapter);
diff --git a/drivers/net/idpf/idpf_rxtx.c b/drivers/net/idpf/idpf_rxtx.c
index cc296d7ab1..9e20f2b9d3 100644
--- a/drivers/net/idpf/idpf_rxtx.c
+++ b/drivers/net/idpf/idpf_rxtx.c
@@ -4,9 +4,11 @@
 
 #include <ethdev_driver.h>
 #include <rte_net.h>
+#include <rte_vect.h>
 
 #include "idpf_ethdev.h"
 #include "idpf_rxtx.h"
+#include "idpf_rxtx_vec_common.h"
 
 static int
 check_rx_thresh(uint16_t nb_desc, uint16_t thresh)
@@ -252,6 +254,8 @@ reset_single_rx_queue(struct idpf_rx_queue *rxq)
 
 	rxq->pkt_first_seg = NULL;
 	rxq->pkt_last_seg = NULL;
+	rxq->rxrearm_start = 0;
+	rxq->rxrearm_nb = 0;
 }
 
 static void
@@ -2073,25 +2077,166 @@ idpf_prep_pkts(__rte_unused void *tx_queue, struct rte_mbuf **tx_pkts,
 	return i;
 }
 
+static void __rte_cold
+release_rxq_mbufs_vec(struct idpf_rx_queue *rxq)
+{
+	const uint16_t mask = rxq->nb_rx_desc - 1;
+	uint16_t i;
+
+	if (rxq->sw_ring == NULL || rxq->rxrearm_nb >= rxq->nb_rx_desc)
+		return;
+
+	/* free all mbufs that are valid in the ring */
+	if (rxq->rxrearm_nb == 0) {
+		for (i = 0; i < rxq->nb_rx_desc; i++) {
+			if (rxq->sw_ring[i] != NULL)
+				rte_pktmbuf_free_seg(rxq->sw_ring[i]);
+		}
+	} else {
+		for (i = rxq->rx_tail; i != rxq->rxrearm_start; i = (i + 1) & mask) {
+			if (rxq->sw_ring[i] != NULL)
+				rte_pktmbuf_free_seg(rxq->sw_ring[i]);
+		}
+	}
+
+	rxq->rxrearm_nb = rxq->nb_rx_desc;
+
+	/* set all entries to NULL */
+	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 = {
+	.release_mbufs = release_rxq_mbufs_vec,
+};
+
+static inline int
+idpf_singleq_rx_vec_setup_default(struct idpf_rx_queue *rxq)
+{
+	uintptr_t p;
+	struct rte_mbuf mb_def = { .buf_addr = 0 }; /* zeroed mbuf */
+
+	mb_def.nb_segs = 1;
+	mb_def.data_off = RTE_PKTMBUF_HEADROOM;
+	mb_def.port = rxq->port_id;
+	rte_mbuf_refcnt_set(&mb_def, 1);
+
+	/* prevent compiler reordering: rearm_data covers previous fields */
+	rte_compiler_barrier();
+	p = (uintptr_t)&mb_def.rearm_data;
+	rxq->mbuf_initializer = *(uint64_t *)p;
+	return 0;
+}
+
+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);
+}
+
 void
 idpf_set_rx_function(struct rte_eth_dev *dev)
 {
 	struct idpf_vport *vport = dev->data->dev_private;
+#ifdef RTE_ARCH_X86
+	struct idpf_adapter *ad = vport->adapter;
+	struct idpf_rx_queue *rxq;
+	int i;
+
+	if (idpf_rx_vec_dev_check_default(dev) == IDPF_VECTOR_PATH &&
+	    rte_vect_get_max_simd_bitwidth() >= RTE_VECT_SIMD_128) {
+		ad->rx_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)
+				ad->rx_use_avx512 = true;
+#else
+		PMD_DRV_LOG(NOTICE,
+			    "AVX512 is not supported in build env");
+#endif /* CC_AVX512_SUPPORT */
+	} else {
+		ad->rx_vec_allowed = false;
+	}
+#endif /* RTE_ARCH_X86 */
+
+#ifdef RTE_ARCH_X86
+	if (vport->rxq_model == VIRTCHNL2_QUEUE_MODEL_SPLIT) {
+		dev->rx_pkt_burst = idpf_splitq_recv_pkts;
+	} else {
+		if (ad->rx_vec_allowed) {
+			for (i = 0; i < dev->data->nb_tx_queues; i++) {
+				rxq = dev->data->rx_queues[i];
+				(void)idpf_singleq_rx_vec_setup(rxq);
+			}
+#ifdef CC_AVX512_SUPPORT
+			if (ad->rx_use_avx512) {
+				dev->rx_pkt_burst = idpf_singleq_recv_pkts_avx512;
+				return;
+			}
+#endif /* CC_AVX512_SUPPORT */
+		}
 
+		dev->rx_pkt_burst = idpf_singleq_recv_pkts;
+	}
+#else
 	if (vport->rxq_model == VIRTCHNL2_QUEUE_MODEL_SPLIT)
 		dev->rx_pkt_burst = idpf_splitq_recv_pkts;
 	else
 		dev->rx_pkt_burst = idpf_singleq_recv_pkts;
+#endif /* RTE_ARCH_X86 */
 }
 
 void
 idpf_set_tx_function(struct rte_eth_dev *dev)
 {
 	struct idpf_vport *vport = dev->data->dev_private;
+#ifdef RTE_ARCH_X86
+	struct idpf_adapter *ad = vport->adapter;
+#ifdef CC_AVX512_SUPPORT
+	struct idpf_tx_queue *txq;
+	int i;
+#endif /* CC_AVX512_SUPPORT */
+
+	if (idpf_rx_vec_dev_check_default(dev) == IDPF_VECTOR_PATH &&
+	    rte_vect_get_max_simd_bitwidth() >= RTE_VECT_SIMD_128) {
+		ad->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)
+				ad->tx_use_avx512 = true;
+#else
+		PMD_DRV_LOG(NOTICE,
+			    "AVX512 is not supported in build env");
+#endif /* CC_AVX512_SUPPORT */
+	} else {
+		ad->tx_vec_allowed = false;
+	}
+#endif /* RTE_ARCH_X86 */
+
 	if (vport->txq_model == VIRTCHNL2_QUEUE_MODEL_SPLIT) {
 		dev->tx_pkt_burst = idpf_splitq_xmit_pkts;
 		dev->tx_pkt_prepare = idpf_prep_pkts;
 	} else {
+#ifdef RTE_ARCH_X86
+		if (ad->tx_vec_allowed) {
+#ifdef CC_AVX512_SUPPORT
+			if (ad->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;
+			}
+#endif /* CC_AVX512_SUPPORT */
+		}
+#endif /* RTE_ARCH_X86 */
 		dev->tx_pkt_burst = idpf_singleq_xmit_pkts;
 		dev->tx_pkt_prepare = idpf_prep_pkts;
 	}
diff --git a/drivers/net/idpf/idpf_rxtx.h b/drivers/net/idpf/idpf_rxtx.h
index 54d297aac6..506bf8a57d 100644
--- a/drivers/net/idpf/idpf_rxtx.h
+++ b/drivers/net/idpf/idpf_rxtx.h
@@ -18,6 +18,12 @@
 #define IDPF_RX_MAX_BURST		32
 #define IDPF_DEFAULT_RX_FREE_THRESH	32
 
+/* used for Vector PMD */
+#define IDPF_VPMD_RX_MAX_BURST	32
+#define IDPF_VPMD_TX_MAX_BURST	32
+#define IDPF_VPMD_DESCS_PER_LOOP	4
+#define IDPF_RXQ_REARM_THRESH	64
+
 #define IDPF_DEFAULT_TX_RS_THRESH	32
 #define IDPF_DEFAULT_TX_FREE_THRESH	32
 
@@ -54,6 +60,11 @@ struct idpf_rx_queue {
 	struct rte_mbuf *pkt_last_seg;  /* last segment of current packet */
 	struct rte_mbuf fake_mbuf;      /* dummy mbuf */
 
+	/* used for VPMD */
+	uint16_t rxrearm_nb;       /* number of remaining to be re-armed */
+	uint16_t rxrearm_start;    /* the idx we start the re-arming from */
+	uint64_t mbuf_initializer; /* value to init mbufs */
+
 	uint16_t rx_nb_avail;
 	uint16_t rx_next_avail;
 
@@ -84,6 +95,10 @@ struct idpf_tx_entry {
 	uint16_t last_id;
 };
 
+struct idpf_tx_vec_entry {
+	struct rte_mbuf *mbuf;
+};
+
 /* Structure associated with each TX queue. */
 struct idpf_tx_queue {
 	const struct rte_memzone *mz;		/* memzone for Tx ring */
@@ -149,6 +164,7 @@ int idpf_rx_queue_setup(struct rte_eth_dev *dev, uint16_t queue_idx,
 			uint16_t nb_desc, unsigned int socket_id,
 			const struct rte_eth_rxconf *rx_conf,
 			struct rte_mempool *mp);
+int idpf_singleq_tx_vec_setup_avx512(struct idpf_tx_queue *txq);
 int idpf_rx_queue_init(struct rte_eth_dev *dev, uint16_t rx_queue_id);
 int idpf_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id);
 int idpf_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id);
@@ -157,16 +173,21 @@ void idpf_dev_rx_queue_release(struct rte_eth_dev *dev, uint16_t qid);
 int idpf_tx_queue_setup(struct rte_eth_dev *dev, uint16_t queue_idx,
 			uint16_t nb_desc, unsigned int socket_id,
 			const struct rte_eth_txconf *tx_conf);
+int idpf_singleq_rx_vec_setup(struct idpf_rx_queue *rxq);
 int idpf_tx_queue_init(struct rte_eth_dev *dev, uint16_t tx_queue_id);
 int idpf_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id);
 int idpf_tx_queue_stop(struct rte_eth_dev *dev, uint16_t tx_queue_id);
 void idpf_dev_tx_queue_release(struct rte_eth_dev *dev, uint16_t qid);
 uint16_t idpf_singleq_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
 				uint16_t nb_pkts);
+uint16_t idpf_singleq_recv_pkts_avx512(void *rx_queue, struct rte_mbuf **rx_pkts,
+				       uint16_t nb_pkts);
 uint16_t idpf_splitq_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
 			       uint16_t nb_pkts);
 uint16_t idpf_singleq_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
 				uint16_t nb_pkts);
+uint16_t idpf_singleq_xmit_pkts_avx512(void *tx_queue, struct rte_mbuf **tx_pkts,
+				       uint16_t nb_pkts);
 uint16_t idpf_splitq_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
 			       uint16_t nb_pkts);
 uint16_t idpf_prep_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
diff --git a/drivers/net/idpf/idpf_rxtx_vec_avx512.c b/drivers/net/idpf/idpf_rxtx_vec_avx512.c
new file mode 100644
index 0000000000..fb2b6bb53c
--- /dev/null
+++ b/drivers/net/idpf/idpf_rxtx_vec_avx512.c
@@ -0,0 +1,857 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ */
+
+#include "idpf_rxtx_vec_common.h"
+
+#include <rte_vect.h>
+
+#ifndef __INTEL_COMPILER
+#pragma GCC diagnostic ignored "-Wcast-qual"
+#endif
+
+#define IDPF_DESCS_PER_LOOP_AVX 8
+#define PKTLEN_SHIFT 10
+
+static __rte_always_inline void
+idpf_singleq_rearm_common(struct idpf_rx_queue *rxq)
+{
+	struct rte_mbuf **rxp = &rxq->sw_ring[rxq->rxrearm_start];
+	volatile union virtchnl2_rx_desc *rxdp = rxq->rx_ring;
+	uint16_t rx_id;
+	int i;
+
+	rxdp += rxq->rxrearm_start;
+
+	/* Pull 'n' more MBUFs into the software ring */
+	if (rte_mempool_get_bulk(rxq->mp,
+				 (void *)rxp,
+				 IDPF_RXQ_REARM_THRESH) < 0) {
+		if (rxq->rxrearm_nb + IDPF_RXQ_REARM_THRESH >=
+		    rxq->nb_rx_desc) {
+			__m128i dma_addr0;
+
+			dma_addr0 = _mm_setzero_si128();
+			for (i = 0; i < IDPF_VPMD_DESCS_PER_LOOP; i++) {
+				rxp[i] = &rxq->fake_mbuf;
+				_mm_store_si128((__m128i *)&rxdp[i].read,
+						dma_addr0);
+			}
+		}
+		rte_eth_devices[rxq->port_id].data->rx_mbuf_alloc_failed +=
+			IDPF_RXQ_REARM_THRESH;
+		return;
+	}
+	struct rte_mbuf *mb0, *mb1, *mb2, *mb3;
+	struct rte_mbuf *mb4, *mb5, *mb6, *mb7;
+	__m512i dma_addr0_3, dma_addr4_7;
+	__m512i hdr_room = _mm512_set1_epi64(RTE_PKTMBUF_HEADROOM);
+	/* 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) {
+		__m128i vaddr0, vaddr1, vaddr2, vaddr3;
+		__m128i vaddr4, vaddr5, vaddr6, vaddr7;
+		__m256i vaddr0_1, vaddr2_3;
+		__m256i vaddr4_5, vaddr6_7;
+		__m512i vaddr0_3, vaddr4_7;
+
+		mb0 = rxp[0];
+		mb1 = rxp[1];
+		mb2 = rxp[2];
+		mb3 = rxp[3];
+		mb4 = rxp[4];
+		mb5 = rxp[5];
+		mb6 = rxp[6];
+		mb7 = rxp[7];
+
+		/* load buf_addr(lo 64bit) and buf_iova(hi 64bit) */
+		RTE_BUILD_BUG_ON(offsetof(struct rte_mbuf, buf_iova) !=
+				offsetof(struct rte_mbuf, buf_addr) + 8);
+		vaddr0 = _mm_loadu_si128((__m128i *)&mb0->buf_addr);
+		vaddr1 = _mm_loadu_si128((__m128i *)&mb1->buf_addr);
+		vaddr2 = _mm_loadu_si128((__m128i *)&mb2->buf_addr);
+		vaddr3 = _mm_loadu_si128((__m128i *)&mb3->buf_addr);
+		vaddr4 = _mm_loadu_si128((__m128i *)&mb4->buf_addr);
+		vaddr5 = _mm_loadu_si128((__m128i *)&mb5->buf_addr);
+		vaddr6 = _mm_loadu_si128((__m128i *)&mb6->buf_addr);
+		vaddr7 = _mm_loadu_si128((__m128i *)&mb7->buf_addr);
+
+		/**
+		 * merge 0 & 1, by casting 0 to 256-bit and inserting 1
+		 * into the high lanes. Similarly for 2 & 3, and so on.
+		 */
+		vaddr0_1 =
+			_mm256_inserti128_si256(_mm256_castsi128_si256(vaddr0),
+						vaddr1, 1);
+		vaddr2_3 =
+			_mm256_inserti128_si256(_mm256_castsi128_si256(vaddr2),
+						vaddr3, 1);
+		vaddr4_5 =
+			_mm256_inserti128_si256(_mm256_castsi128_si256(vaddr4),
+						vaddr5, 1);
+		vaddr6_7 =
+			_mm256_inserti128_si256(_mm256_castsi128_si256(vaddr6),
+						vaddr7, 1);
+		vaddr0_3 =
+			_mm512_inserti64x4(_mm512_castsi256_si512(vaddr0_1),
+						vaddr2_3, 1);
+		vaddr4_7 =
+			_mm512_inserti64x4(_mm512_castsi256_si512(vaddr4_5),
+						vaddr6_7, 1);
+
+		/* convert pa to dma_addr hdr/data */
+		dma_addr0_3 = _mm512_unpackhi_epi64(vaddr0_3, vaddr0_3);
+		dma_addr4_7 = _mm512_unpackhi_epi64(vaddr4_7, vaddr4_7);
+
+		/* add headroom to pa values */
+		dma_addr0_3 = _mm512_add_epi64(dma_addr0_3, hdr_room);
+		dma_addr4_7 = _mm512_add_epi64(dma_addr4_7, hdr_room);
+
+		/* flush desc with pa dma_addr */
+		_mm512_store_si512((__m512i *)&rxdp->read, dma_addr0_3);
+		_mm512_store_si512((__m512i *)&(rxdp + 4)->read, dma_addr4_7);
+	}
+
+	rxq->rxrearm_start += IDPF_RXQ_REARM_THRESH;
+	if (rxq->rxrearm_start >= rxq->nb_rx_desc)
+		rxq->rxrearm_start = 0;
+
+	rxq->rxrearm_nb -= IDPF_RXQ_REARM_THRESH;
+
+	rx_id = (uint16_t)((rxq->rxrearm_start == 0) ?
+			     (rxq->nb_rx_desc - 1) : (rxq->rxrearm_start - 1));
+
+	/* Update the tail pointer on the NIC */
+	IDPF_PCI_REG_WRITE(rxq->qrx_tail, rx_id);
+}
+
+static __rte_always_inline void
+idpf_singleq_rearm(struct idpf_rx_queue *rxq)
+{
+	int i;
+	uint16_t rx_id;
+	volatile union virtchnl2_rx_desc *rxdp = rxq->rx_ring;
+	struct rte_mempool_cache *cache =
+		rte_mempool_default_cache(rxq->mp, rte_lcore_id());
+	struct rte_mbuf **rxp = &rxq->sw_ring[rxq->rxrearm_start];
+
+	rxdp += rxq->rxrearm_start;
+
+	if (unlikely(cache == NULL))
+		return idpf_singleq_rearm_common(rxq);
+
+	/* 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
+				(rxq->mp, &cache->objs[cache->len], req);
+		if (ret == 0) {
+			cache->len += req;
+		} else {
+			if (rxq->rxrearm_nb + IDPF_RXQ_REARM_THRESH >=
+			    rxq->nb_rx_desc) {
+				__m128i dma_addr0;
+
+				dma_addr0 = _mm_setzero_si128();
+				for (i = 0; i < IDPF_VPMD_DESCS_PER_LOOP; i++) {
+					rxp[i] = &rxq->fake_mbuf;
+					_mm_storeu_si128((__m128i *)&rxdp[i].read,
+							 dma_addr0);
+				}
+			}
+			rte_eth_devices[rxq->port_id].data->rx_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);
+
+	/* to shuffle the addresses to correct slots. Values 4-7 will contain
+	 * zeros, so use 7 for a zero-value.
+	 */
+	const __m512i permute_idx = _mm512_set_epi64(7, 7, 3, 1, 7, 7, 2, 0);
+
+	/* 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 iovas0 = _mm512_castsi256_si512
+				(_mm512_extracti64x4_epi64(iova_addrs, 0));
+		const __m512i iovas1 = _mm512_castsi256_si512
+				(_mm512_extracti64x4_epi64(iova_addrs, 1));
+
+		/* permute leaves desc 2-3 addresses in header address slots 0-1
+		 * but these are ignored by driver since header split not
+		 * enabled. Similarly for desc 6 & 7.
+		 */
+		const __m512i desc0_1 = _mm512_permutexvar_epi64
+				(permute_idx,
+				 iovas0);
+		const __m512i desc2_3 = _mm512_bsrli_epi128(desc0_1, 8);
+
+		const __m512i desc4_5 = _mm512_permutexvar_epi64
+				(permute_idx,
+				 iovas1);
+		const __m512i desc6_7 = _mm512_bsrli_epi128(desc4_5, 8);
+
+		_mm512_storeu_si512((void *)rxdp, desc0_1);
+		_mm512_storeu_si512((void *)(rxdp + 2), desc2_3);
+		_mm512_storeu_si512((void *)(rxdp + 4), desc4_5);
+		_mm512_storeu_si512((void *)(rxdp + 6), desc6_7);
+
+		rxp += IDPF_DESCS_PER_LOOP_AVX;
+		rxdp += IDPF_DESCS_PER_LOOP_AVX;
+		cache->len -= IDPF_DESCS_PER_LOOP_AVX;
+	}
+
+	rxq->rxrearm_start += IDPF_RXQ_REARM_THRESH;
+	if (rxq->rxrearm_start >= rxq->nb_rx_desc)
+		rxq->rxrearm_start = 0;
+
+	rxq->rxrearm_nb -= IDPF_RXQ_REARM_THRESH;
+
+	rx_id = (uint16_t)((rxq->rxrearm_start == 0) ?
+			   (rxq->nb_rx_desc - 1) : (rxq->rxrearm_start - 1));
+
+	/* Update the tail pointer on the NIC */
+	IDPF_PCI_REG_WRITE(rxq->qrx_tail, rx_id);
+}
+
+#define IDPF_RX_LEN_MASK 0x80808080
+static __rte_always_inline uint16_t
+_idpf_singleq_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->mbuf_initializer);
+	struct rte_mbuf **sw_ring = &rxq->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->rxrearm_nb > IDPF_RXQ_REARM_THRESH)
+		idpf_singleq_rearm(rxq);
+
+	/* Before we start moving massive data around, check to see if
+	 * there is actually a packet available
+	 */
+	if ((rxdp->flex_nic_wb.status_error0  &
+	      rte_cpu_to_le_32(1 << VIRTCHNL2_RX_FLEX_DESC_STATUS0_DD_S)) == 0)
+		return 0;
+
+	/* 8 packets DD mask, LSB in each 32-bit value */
+	const __m256i dd_check = _mm256_set1_epi32(1);
+
+	/* mask to shuffle from desc. to mbuf (4 descriptors)*/
+	const __m512i shuf_msk =
+		_mm512_set_epi32
+			(/* 1st descriptor */
+			 0xFFFFFFFF,    /* rss set as unknown */
+			 0xFFFF0504,    /* vlan_macip set as unknown */
+					/* 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,    /* rss set as unknown */
+			 0xFFFF0504,    /* vlan_macip set as unknown */
+					/* 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,    /* rss set as unknown */
+			 0xFFFF0504,    /* vlan_macip set as unknown */
+					/* 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,    /* rss set as unknown */
+			 0xFFFF0504,    /* vlan_macip set as unknown */
+					/* 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 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 len4_7 = _mm512_slli_epi32(raw_desc4_7,
+							 PKTLEN_SHIFT);
+		const __m512i desc4_7 = _mm512_mask_blend_epi16(IDPF_RX_LEN_MASK,
+								raw_desc4_7,
+								len4_7);
+		__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 len0_3 = _mm512_slli_epi32(raw_desc0_3,
+							 PKTLEN_SHIFT);
+		const __m512i desc0_3 = _mm512_mask_blend_epi16(IDPF_RX_LEN_MASK,
+								raw_desc0_3,
+								len0_3);
+		__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 content
+		 * After the operations, the packets status flags are in the
+		 * order (hi->lo): [1, 3, 5, 7, 0, 2, 4, 6]
+		 */
+		/* merge the status bits into one register */
+		const __m512i status_permute_msk = _mm512_set_epi32
+			(0, 0, 0, 0,
+			 0, 0, 0, 0,
+			 22, 30, 6, 14,
+			 18, 26, 2, 10);
+		const __m512i raw_status0_7 = _mm512_permutex2var_epi32
+			(raw_desc4_7, status_permute_msk, raw_desc0_3);
+		__m256i status0_7 = _mm512_extracti64x4_epi64
+			(raw_status0_7, 0);
+
+		/* now do flag manipulation */
+
+		/**
+		 * At this point, we have the 8 sets of flags in the low 16-bits
+		 * of each 32-bit value.
+		 * 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);
+
+		/* perform dd_check */
+		status0_7 = _mm256_and_si256(status0_7, dd_check);
+		status0_7 = _mm256_packs_epi32(status0_7,
+					       _mm256_setzero_si256());
+
+		uint64_t burst = __builtin_popcountll
+					(_mm_cvtsi128_si64
+						(_mm256_extracti128_si256
+							(status0_7, 1)));
+		burst += __builtin_popcountll
+				(_mm_cvtsi128_si64
+					(_mm256_castsi256_si128(status0_7)));
+		received += burst;
+		if (burst != IDPF_DESCS_PER_LOOP_AVX)
+			break;
+	}
+
+	/* update tail pointers */
+	rxq->rx_tail += received;
+	rxq->rx_tail &= (rxq->nb_rx_desc - 1);
+	if ((rxq->rx_tail & 1) == 1 && received > 1) { /* keep aligned */
+		rxq->rx_tail--;
+		received--;
+	}
+	rxq->rxrearm_nb += received;
+	return received;
+}
+
+/**
+ * Notice:
+ * - nb_pkts < IDPF_DESCS_PER_LOOP, just return no packet
+ */
+uint16_t
+idpf_singleq_recv_pkts_avx512(void *rx_queue, struct rte_mbuf **rx_pkts,
+			  uint16_t nb_pkts)
+{
+	return _idpf_singleq_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)
+{
+	struct idpf_tx_vec_entry *txep;
+	uint32_t n;
+	uint32_t i;
+	int nb_free = 0;
+	struct rte_mbuf *m, *free[txq->rs_thresh];
+
+	/* check DD bits on threshold descriptor */
+	if ((txq->tx_ring[txq->next_dd].qw1.cmd_dtype &
+			rte_cpu_to_le_64(IDPF_TXD_QW1_DTYPE_M)) !=
+			rte_cpu_to_le_64(IDPF_TX_DESC_DTYPE_DESC_DONE))
+		return 0;
+
+	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 & RTE_ETH_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 == NULL || 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 != NULL)) {
+		free[0] = m;
+		nb_free = 1;
+		for (i = 1; i < n; i++) {
+			m = rte_pktmbuf_prefree_seg(txep[i].mbuf);
+			if (likely(m != NULL)) {
+				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 != NULL)
+				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);
+
+	return txq->rs_thresh;
+}
+
+static __rte_always_inline void
+tx_backlog_entry_avx512(struct idpf_tx_vec_entry *txep,
+			struct rte_mbuf **tx_pkts, uint16_t nb_pkts)
+{
+	int i;
+
+	for (i = 0; i < (int)nb_pkts; ++i)
+		txep[i].mbuf = tx_pkts[i];
+}
+
+#define IDPF_FLEX_TXD_QW1_BUF_SZ_S 48
+static __rte_always_inline void
+idpf_vtx1(volatile struct idpf_flex_tx_desc *txdp,
+	  struct rte_mbuf *pkt, uint64_t flags)
+{
+	uint64_t high_qw =
+		(IDPF_TX_DESC_DTYPE_FLEX_DATA << IDPF_FLEX_TXD_QW1_DTYPE_S |
+		 ((uint64_t)flags  << IDPF_FLEX_TXD_QW1_CMD_S) |
+		 ((uint64_t)pkt->data_len << IDPF_FLEX_TXD_QW1_BUF_SZ_S));
+
+	__m128i descriptor = _mm_set_epi64x(high_qw,
+					    pkt->buf_iova + pkt->data_off);
+	_mm_storeu_si128((__m128i *)txdp, descriptor);
+}
+
+#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,
+	 struct rte_mbuf **pkt, uint16_t nb_pkts,  uint64_t flags)
+{
+	const uint64_t hi_qw_tmpl = (IDPF_TX_DESC_DTYPE_FLEX_DATA  |
+			((uint64_t)flags  << IDPF_FLEX_TXD_QW1_CMD_S));
+
+	/* if unaligned on 32-bit boundary, do one to align */
+	if (((uintptr_t)txdp & 0x1F) != 0 && nb_pkts != 0) {
+		idpf_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_FLEX_TXD_QW1_BUF_SZ_S);
+		uint64_t hi_qw2 =
+			hi_qw_tmpl |
+			((uint64_t)pkt[2]->data_len <<
+			 IDPF_FLEX_TXD_QW1_BUF_SZ_S);
+		uint64_t hi_qw1 =
+			hi_qw_tmpl |
+			((uint64_t)pkt[1]->data_len <<
+			 IDPF_FLEX_TXD_QW1_BUF_SZ_S);
+		uint64_t hi_qw0 =
+			hi_qw_tmpl |
+			((uint64_t)pkt[0]->data_len <<
+			 IDPF_FLEX_TXD_QW1_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_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)
+{
+	struct idpf_tx_queue *txq = tx_queue;
+	volatile struct idpf_flex_tx_desc *txdp;
+	struct idpf_tx_vec_entry *txep;
+	uint16_t n, nb_commit, tx_id;
+	uint64_t flags = IDPF_TX_FLEX_DESC_CMD_EOP;
+	uint64_t rs = IDPF_TX_FLEX_DESC_CMD_RS | flags;
+
+	/* cross rx_thresh boundary is not allowed */
+	nb_pkts = RTE_MIN(nb_pkts, txq->rs_thresh);
+
+	if (txq->nb_free < txq->free_thresh)
+		idpf_tx_free_bufs_avx512(txq);
+
+	nb_pkts = (uint16_t)RTE_MIN(txq->nb_free, nb_pkts);
+	nb_commit = nb_pkts;
+	if (unlikely(nb_pkts == 0))
+		return 0;
+
+	tx_id = txq->tx_tail;
+	txdp = &txq->tx_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_vtx(txdp, tx_pkts, n - 1, flags);
+		tx_pkts += (n - 1);
+		txdp += (n - 1);
+
+		idpf_vtx1(txdp, *tx_pkts++, rs);
+
+		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->tx_ring[tx_id];
+		txep = (void *)txq->sw_ring;
+		txep += tx_id;
+	}
+
+	tx_backlog_entry_avx512(txep, tx_pkts, nb_commit);
+
+	idpf_vtx(txdp, tx_pkts, nb_commit, flags);
+
+	tx_id = (uint16_t)(tx_id + nb_commit);
+	if (tx_id > txq->next_rs) {
+		txq->tx_ring[txq->next_rs].qw1.cmd_dtype |=
+			rte_cpu_to_le_64(((uint64_t)IDPF_TX_FLEX_DESC_CMD_RS) <<
+					 IDPF_FLEX_TXD_QW1_CMD_S);
+		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_xmit_pkts_vec_avx512_cmn(void *tx_queue, struct rte_mbuf **tx_pkts,
+			      uint16_t nb_pkts)
+{
+	uint16_t nb_tx = 0;
+	struct idpf_tx_queue *txq = tx_queue;
+
+	while (nb_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],
+						       num);
+		nb_tx += ret;
+		nb_pkts -= ret;
+		if (ret < num)
+			break;
+	}
+
+	return nb_tx;
+}
+
+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);
+}
+
+static inline void
+idpf_singleq_tx_release_mbufs_avx512(struct idpf_tx_queue *txq)
+{
+	unsigned int i;
+	const uint16_t max_desc = (uint16_t)(txq->nb_tx_desc - 1);
+	struct idpf_tx_vec_entry *swr = (void *)txq->sw_ring;
+
+	if (txq->sw_ring == NULL || txq->nb_free == max_desc)
+		return;
+
+	i = txq->next_dd - txq->rs_thresh + 1;
+	if (txq->tx_tail < i) {
+		for (; i < txq->nb_tx_desc; i++) {
+			rte_pktmbuf_free_seg(swr[i].mbuf);
+			swr[i].mbuf = NULL;
+		}
+		i = 0;
+	}
+}
+
+static const struct idpf_txq_ops avx512_singleq_tx_vec_ops = {
+	.release_mbufs = idpf_singleq_tx_release_mbufs_avx512,
+};
+
+int __rte_cold
+idpf_singleq_tx_vec_setup_avx512(struct idpf_tx_queue *txq)
+{
+	txq->ops = &avx512_singleq_tx_vec_ops;
+	return 0;
+}
diff --git a/drivers/net/idpf/idpf_rxtx_vec_common.h b/drivers/net/idpf/idpf_rxtx_vec_common.h
new file mode 100644
index 0000000000..0f4e10e154
--- /dev/null
+++ b/drivers/net/idpf/idpf_rxtx_vec_common.h
@@ -0,0 +1,100 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ */
+
+#ifndef _IDPF_RXTX_VEC_COMMON_H_
+#define _IDPF_RXTX_VEC_COMMON_H_
+#include <stdint.h>
+#include <ethdev_driver.h>
+#include <rte_malloc.h>
+
+#include "idpf_ethdev.h"
+#include "idpf_rxtx.h"
+
+#ifndef __INTEL_COMPILER
+#pragma GCC diagnostic ignored "-Wcast-qual"
+#endif
+
+#define IDPF_VECTOR_PATH		0
+#define ICE_RX_NO_VECTOR_FLAGS (		\
+		RTE_ETH_RX_OFFLOAD_IPV4_CKSUM |	\
+		RTE_ETH_RX_OFFLOAD_UDP_CKSUM |	\
+		RTE_ETH_RX_OFFLOAD_TCP_CKSUM |	\
+		RTE_ETH_RX_OFFLOAD_OUTER_IPV4_CKSUM |	\
+		RTE_ETH_RX_OFFLOAD_TIMESTAMP)
+#define ICE_TX_NO_VECTOR_FLAGS (		\
+		RTE_ETH_TX_OFFLOAD_TCP_TSO |	\
+		RTE_ETH_TX_OFFLOAD_MULTI_SEGS)
+
+static inline int
+idpf_rx_vec_queue_default(struct idpf_rx_queue *rxq)
+{
+	if (rxq == NULL)
+		return -1;
+
+	if (rte_is_power_of_2(rxq->nb_rx_desc) == 0)
+		return -1;
+
+	if (rxq->rx_free_thresh < IDPF_VPMD_RX_MAX_BURST)
+		return -1;
+
+	if ((rxq->nb_rx_desc % rxq->rx_free_thresh) != 0)
+		return -1;
+
+	if ((rxq->offloads & ICE_RX_NO_VECTOR_FLAGS) != 0)
+		return -1;
+
+	return IDPF_VECTOR_PATH;
+}
+
+static inline int
+idpf_tx_vec_queue_default(struct idpf_tx_queue *txq)
+{
+	if (txq == NULL)
+		return -1;
+
+	if (txq->rs_thresh < IDPF_VPMD_TX_MAX_BURST ||
+	    (txq->rs_thresh & 3) != 0)
+		return -1;
+
+	if ((txq->offloads & ICE_TX_NO_VECTOR_FLAGS) != 0)
+		return -1;
+
+	return IDPF_VECTOR_PATH;
+}
+
+static inline int
+idpf_rx_vec_dev_check_default(struct rte_eth_dev *dev)
+{
+	int i;
+	struct idpf_rx_queue *rxq;
+	int 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));
+		if (ret < 0)
+			return -1;
+	}
+
+	return IDPF_VECTOR_PATH;
+}
+
+static inline int
+idpf_tx_vec_dev_check_default(struct rte_eth_dev *dev)
+{
+	int i;
+	struct idpf_tx_queue *txq;
+	int ret = 0;
+
+	for (i = 0; i < dev->data->nb_tx_queues; i++) {
+		txq = dev->data->tx_queues[i];
+		ret = idpf_tx_vec_queue_default(txq);
+		if (ret < 0)
+			return -1;
+	}
+
+	return IDPF_VECTOR_PATH;
+}
+
+#endif /*_IDPF_RXTX_VEC_COMMON_H_*/
diff --git a/drivers/net/idpf/meson.build b/drivers/net/idpf/meson.build
index b632b76656..da99c098ab 100644
--- a/drivers/net/idpf/meson.build
+++ b/drivers/net/idpf/meson.build
@@ -14,3 +14,31 @@ sources = files(
     'idpf_rxtx.c',
     'idpf_vchnl.c',
 )
+
+if arch_subdir == 'x86'
+    idpf_avx512_cpu_support = (
+        cc.get_define('__AVX512F__', args: machine_args) != '' and
+        cc.get_define('__AVX512BW__', args: machine_args) != ''
+    )
+
+    idpf_avx512_cc_support = (
+        not machine_args.contains('-mno-avx512f') and
+        cc.has_argument('-mavx512f') and
+        cc.has_argument('-mavx512bw')
+    )
+
+    if idpf_avx512_cpu_support == true or idpf_avx512_cc_support == true
+        cflags += ['-DCC_AVX512_SUPPORT']
+        avx512_args = [cflags, '-mavx512f', '-mavx512bw']
+        if cc.has_argument('-march=skylake-avx512')
+            avx512_args += '-march=skylake-avx512'
+        endif
+        idpf_avx512_lib = static_library('idpf_avx512_lib',
+            'idpf_rxtx_vec_avx512.c',
+            dependencies: [static_rte_common_idpf, static_rte_ethdev, static_rte_bus_pci,
+            static_rte_kvargs, static_rte_hash],
+            include_directories: includes,
+            c_args: avx512_args)
+        objs += idpf_avx512_lib.extract_objects('idpf_rxtx_vec_avx512.c')
+    endif
+endif
-- 
2.26.2