diff mbox

[dpdk-dev,v2,04/11] enic: put Tx and Rx functions into same file

Message ID 1464071579-30072-5-git-send-email-johndale@cisco.com (mailing list archive)
State Superseded, archived
Delegated to: Bruce Richardson
Headers show

Commit Message

John Daley May 24, 2016, 6:32 a.m. UTC
Signed-off-by: John Daley <johndale@cisco.com>
---
 drivers/net/enic/Makefile      |   2 +-
 drivers/net/enic/enic.h        |   3 +
 drivers/net/enic/enic_ethdev.c |  65 ------
 drivers/net/enic/enic_main.c   |  82 +------
 drivers/net/enic/enic_rx.c     | 343 -----------------------------
 drivers/net/enic/enic_rxtx.c   | 481 +++++++++++++++++++++++++++++++++++++++++
 6 files changed, 486 insertions(+), 490 deletions(-)
 delete mode 100644 drivers/net/enic/enic_rx.c
 create mode 100644 drivers/net/enic/enic_rxtx.c
diff mbox

Patch

diff --git a/drivers/net/enic/Makefile b/drivers/net/enic/Makefile
index f316274..3926b79 100644
--- a/drivers/net/enic/Makefile
+++ b/drivers/net/enic/Makefile
@@ -53,7 +53,7 @@  VPATH += $(SRCDIR)/src
 #
 SRCS-$(CONFIG_RTE_LIBRTE_ENIC_PMD) += enic_ethdev.c
 SRCS-$(CONFIG_RTE_LIBRTE_ENIC_PMD) += enic_main.c
-SRCS-$(CONFIG_RTE_LIBRTE_ENIC_PMD) += enic_rx.c
+SRCS-$(CONFIG_RTE_LIBRTE_ENIC_PMD) += enic_rxtx.c
 SRCS-$(CONFIG_RTE_LIBRTE_ENIC_PMD) += enic_clsf.c
 SRCS-$(CONFIG_RTE_LIBRTE_ENIC_PMD) += enic_res.c
 SRCS-$(CONFIG_RTE_LIBRTE_ENIC_PMD) += base/vnic_cq.c
diff --git a/drivers/net/enic/enic.h b/drivers/net/enic/enic.h
index 9b6f349..62a8c12 100644
--- a/drivers/net/enic/enic.h
+++ b/drivers/net/enic/enic.h
@@ -208,4 +208,7 @@  extern void enic_clsf_destroy(struct enic *enic);
 uint16_t enic_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
 			uint16_t nb_pkts);
 
+uint16_t enicpmd_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
+			   uint16_t nb_pkts);
+void enic_free_wq_buf(__rte_unused struct vnic_wq *wq, struct vnic_wq_buf *buf);
 #endif /* _ENIC_H_ */
diff --git a/drivers/net/enic/enic_ethdev.c b/drivers/net/enic/enic_ethdev.c
index 6bea940..fab8124 100644
--- a/drivers/net/enic/enic_ethdev.c
+++ b/drivers/net/enic/enic_ethdev.c
@@ -519,71 +519,6 @@  static void enicpmd_remove_mac_addr(struct rte_eth_dev *eth_dev, __rte_unused ui
 	enic_del_mac_address(enic);
 }
 
-
-static uint16_t enicpmd_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
-	uint16_t nb_pkts)
-{
-	uint16_t index;
-	unsigned int frags;
-	unsigned int pkt_len;
-	unsigned int seg_len;
-	unsigned int inc_len;
-	unsigned int nb_segs;
-	struct rte_mbuf *tx_pkt, *next_tx_pkt;
-	struct vnic_wq *wq = (struct vnic_wq *)tx_queue;
-	struct enic *enic = vnic_dev_priv(wq->vdev);
-	unsigned short vlan_id;
-	unsigned short ol_flags;
-	uint8_t last_seg, eop;
-	unsigned int host_tx_descs = 0;
-
-	for (index = 0; index < nb_pkts; index++) {
-		tx_pkt = *tx_pkts++;
-		inc_len = 0;
-		nb_segs = tx_pkt->nb_segs;
-		if (nb_segs > vnic_wq_desc_avail(wq)) {
-			if (index > 0)
-				enic_post_wq_index(wq);
-
-			/* wq cleanup and try again */
-			if (!enic_cleanup_wq(enic, wq) ||
-				(nb_segs > vnic_wq_desc_avail(wq))) {
-				return index;
-			}
-		}
-
-		pkt_len = tx_pkt->pkt_len;
-		vlan_id = tx_pkt->vlan_tci;
-		ol_flags = tx_pkt->ol_flags;
-		for (frags = 0; inc_len < pkt_len; frags++) {
-			if (!tx_pkt)
-				break;
-			next_tx_pkt = tx_pkt->next;
-			seg_len = tx_pkt->data_len;
-			inc_len += seg_len;
-
-			host_tx_descs++;
-			last_seg = 0;
-			eop = 0;
-			if ((pkt_len == inc_len) || !next_tx_pkt) {
-				eop = 1;
-				/* post if last packet in batch or > thresh */
-				if ((index == (nb_pkts - 1)) ||
-				   (host_tx_descs > ENIC_TX_POST_THRESH)) {
-					last_seg = 1;
-					host_tx_descs = 0;
-				}
-			}
-			enic_send_pkt(enic, wq, tx_pkt, (unsigned short)seg_len,
-				      !frags, eop, last_seg, ol_flags, vlan_id);
-			tx_pkt = next_tx_pkt;
-		}
-	}
-
-	enic_cleanup_wq(enic, wq);
-	return index;
-}
-
 static const struct eth_dev_ops enicpmd_eth_dev_ops = {
 	.dev_configure        = enicpmd_dev_configure,
 	.dev_start            = enicpmd_dev_start,
diff --git a/drivers/net/enic/enic_main.c b/drivers/net/enic/enic_main.c
index e4ccc7d..f41ef86 100644
--- a/drivers/net/enic/enic_main.c
+++ b/drivers/net/enic/enic_main.c
@@ -58,7 +58,6 @@ 
 #include "vnic_cq.h"
 #include "vnic_intr.h"
 #include "vnic_nic.h"
-#include "enic_vnic_wq.h"
 
 static inline int enic_is_sriov_vf(struct enic *enic)
 {
@@ -104,7 +103,7 @@  void enic_set_hdr_split_size(struct enic *enic, u16 split_hdr_size)
 	vnic_set_hdr_split_size(enic->vdev, split_hdr_size);
 }
 
-static void enic_free_wq_buf(__rte_unused struct vnic_wq *wq, struct vnic_wq_buf *buf)
+void enic_free_wq_buf(__rte_unused struct vnic_wq *wq, struct vnic_wq_buf *buf)
 {
 	struct rte_mbuf *mbuf = (struct rte_mbuf *)buf->os_buf;
 
@@ -112,26 +111,6 @@  static void enic_free_wq_buf(__rte_unused struct vnic_wq *wq, struct vnic_wq_buf
 	buf->os_buf = NULL;
 }
 
-static void enic_wq_free_buf(struct vnic_wq *wq,
-	__rte_unused struct cq_desc *cq_desc,
-	struct vnic_wq_buf *buf,
-	__rte_unused void *opaque)
-{
-	enic_free_wq_buf(wq, buf);
-}
-
-static int enic_wq_service(struct vnic_dev *vdev, struct cq_desc *cq_desc,
-	__rte_unused u8 type, u16 q_number, u16 completed_index, void *opaque)
-{
-	struct enic *enic = vnic_dev_priv(vdev);
-
-	vnic_wq_service(&enic->wq[q_number], cq_desc,
-		completed_index, enic_wq_free_buf,
-		opaque);
-
-	return 0;
-}
-
 static void enic_log_q_error(struct enic *enic)
 {
 	unsigned int i;
@@ -152,65 +131,6 @@  static void enic_log_q_error(struct enic *enic)
 	}
 }
 
-unsigned int enic_cleanup_wq(struct enic *enic, struct vnic_wq *wq)
-{
-	unsigned int cq = enic_cq_wq(enic, wq->index);
-
-	/* Return the work done */
-	return vnic_cq_service(&enic->cq[cq],
-		-1 /*wq_work_to_do*/, enic_wq_service, NULL);
-}
-
-void enic_post_wq_index(struct vnic_wq *wq)
-{
-	enic_vnic_post_wq_index(wq);
-}
-
-void enic_send_pkt(struct enic *enic, struct vnic_wq *wq,
-		   struct rte_mbuf *tx_pkt, unsigned short len,
-		   uint8_t sop, uint8_t eop, uint8_t cq_entry,
-		   uint16_t ol_flags, uint16_t vlan_tag)
-{
-	struct wq_enet_desc *desc = vnic_wq_next_desc(wq);
-	uint16_t mss = 0;
-	uint8_t vlan_tag_insert = 0;
-	uint64_t bus_addr = (dma_addr_t)
-	    (tx_pkt->buf_physaddr + tx_pkt->data_off);
-
-	if (sop) {
-		if (ol_flags & PKT_TX_VLAN_PKT)
-			vlan_tag_insert = 1;
-
-		if (enic->hw_ip_checksum) {
-			if (ol_flags & PKT_TX_IP_CKSUM)
-				mss |= ENIC_CALC_IP_CKSUM;
-
-			if (ol_flags & PKT_TX_TCP_UDP_CKSUM)
-				mss |= ENIC_CALC_TCP_UDP_CKSUM;
-		}
-	}
-
-	wq_enet_desc_enc(desc,
-		bus_addr,
-		len,
-		mss,
-		0 /* header_length */,
-		0 /* offload_mode WQ_ENET_OFFLOAD_MODE_CSUM */,
-		eop,
-		cq_entry,
-		0 /* fcoe_encap */,
-		vlan_tag_insert,
-		vlan_tag,
-		0 /* loopback */);
-
-	enic_vnic_post_wq(wq, (void *)tx_pkt, bus_addr, len,
-			  sop,
-			  1 /*desc_skip_cnt*/,
-			  cq_entry,
-			  0 /*compressed send*/,
-			  0 /*wrid*/);
-}
-
 static void enic_clear_soft_stats(struct enic *enic)
 {
 	struct enic_soft_stats *soft_stats = &enic->soft_stats;
diff --git a/drivers/net/enic/enic_rx.c b/drivers/net/enic/enic_rx.c
deleted file mode 100644
index c72a80a..0000000
--- a/drivers/net/enic/enic_rx.c
+++ /dev/null
@@ -1,343 +0,0 @@ 
-/*
- * Copyright 2008-2014 Cisco Systems, Inc.  All rights reserved.
- * Copyright 2007 Nuova Systems, Inc.  All rights reserved.
- *
- * Copyright (c) 2014, Cisco Systems, Inc.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-#include <rte_mbuf.h>
-#include <rte_ethdev.h>
-#include <rte_prefetch.h>
-
-#include "enic_compat.h"
-#include "rq_enet_desc.h"
-#include "enic.h"
-
-#define RTE_PMD_USE_PREFETCH
-
-#ifdef RTE_PMD_USE_PREFETCH
-/*
- * Prefetch a cache line into all cache levels.
- */
-#define rte_enic_prefetch(p) rte_prefetch0(p)
-#else
-#define rte_enic_prefetch(p) do {} while (0)
-#endif
-
-#ifdef RTE_PMD_PACKET_PREFETCH
-#define rte_packet_prefetch(p) rte_prefetch1(p)
-#else
-#define rte_packet_prefetch(p) do {} while (0)
-#endif
-
-static inline uint16_t
-enic_cq_rx_desc_ciflags(struct cq_enet_rq_desc *crd)
-{
-	return le16_to_cpu(crd->completed_index_flags) & ~CQ_DESC_COMP_NDX_MASK;
-}
-
-static inline uint16_t
-enic_cq_rx_desc_bwflags(struct cq_enet_rq_desc *crd)
-{
-	return(le16_to_cpu(crd->bytes_written_flags) &
-		~CQ_ENET_RQ_DESC_BYTES_WRITTEN_MASK);
-}
-
-static inline uint8_t
-enic_cq_rx_desc_packet_error(uint16_t bwflags)
-{
-	return((bwflags & CQ_ENET_RQ_DESC_FLAGS_TRUNCATED) ==
-		CQ_ENET_RQ_DESC_FLAGS_TRUNCATED);
-}
-
-static inline uint8_t
-enic_cq_rx_desc_eop(uint16_t ciflags)
-{
-	return (ciflags & CQ_ENET_RQ_DESC_FLAGS_EOP)
-		== CQ_ENET_RQ_DESC_FLAGS_EOP;
-}
-
-static inline uint8_t
-enic_cq_rx_desc_csum_not_calc(struct cq_enet_rq_desc *cqrd)
-{
-	return ((le16_to_cpu(cqrd->q_number_rss_type_flags) &
-		CQ_ENET_RQ_DESC_FLAGS_CSUM_NOT_CALC) ==
-		CQ_ENET_RQ_DESC_FLAGS_CSUM_NOT_CALC);
-}
-
-static inline uint8_t
-enic_cq_rx_desc_ipv4_csum_ok(struct cq_enet_rq_desc *cqrd)
-{
-	return ((cqrd->flags & CQ_ENET_RQ_DESC_FLAGS_IPV4_CSUM_OK) ==
-		CQ_ENET_RQ_DESC_FLAGS_IPV4_CSUM_OK);
-}
-
-static inline uint8_t
-enic_cq_rx_desc_tcp_udp_csum_ok(struct cq_enet_rq_desc *cqrd)
-{
-	return((cqrd->flags & CQ_ENET_RQ_DESC_FLAGS_TCP_UDP_CSUM_OK) ==
-		CQ_ENET_RQ_DESC_FLAGS_TCP_UDP_CSUM_OK);
-}
-
-static inline uint8_t
-enic_cq_rx_desc_rss_type(struct cq_enet_rq_desc *cqrd)
-{
-	return (uint8_t)((le16_to_cpu(cqrd->q_number_rss_type_flags) >>
-		CQ_DESC_Q_NUM_BITS) & CQ_ENET_RQ_DESC_RSS_TYPE_MASK);
-}
-
-static inline uint32_t
-enic_cq_rx_desc_rss_hash(struct cq_enet_rq_desc *cqrd)
-{
-	return le32_to_cpu(cqrd->rss_hash);
-}
-
-static inline uint16_t
-enic_cq_rx_desc_vlan(struct cq_enet_rq_desc *cqrd)
-{
-	return le16_to_cpu(cqrd->vlan);
-}
-
-static inline uint16_t
-enic_cq_rx_desc_n_bytes(struct cq_desc *cqd)
-{
-	struct cq_enet_rq_desc *cqrd = (struct cq_enet_rq_desc *)cqd;
-	return le16_to_cpu(cqrd->bytes_written_flags) &
-		CQ_ENET_RQ_DESC_BYTES_WRITTEN_MASK;
-}
-
-static inline uint8_t
-enic_cq_rx_check_err(struct cq_desc *cqd)
-{
-	struct cq_enet_rq_desc *cqrd = (struct cq_enet_rq_desc *)cqd;
-	uint16_t bwflags;
-
-	bwflags = enic_cq_rx_desc_bwflags(cqrd);
-	if (unlikely(enic_cq_rx_desc_packet_error(bwflags)))
-		return 1;
-	return 0;
-}
-
-/*
- * Lookup table to translate RX CQ flags to mbuf flags.
- */
-static inline uint32_t
-enic_cq_rx_flags_to_pkt_type(struct cq_desc *cqd)
-{
-	struct cq_enet_rq_desc *cqrd = (struct cq_enet_rq_desc *)cqd;
-	uint8_t cqrd_flags = cqrd->flags;
-	static const uint32_t cq_type_table[128] __rte_cache_aligned = {
-		[32] =  RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4,
-		[34] =  RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4
-			| RTE_PTYPE_L4_UDP,
-		[36] =  RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4
-			| RTE_PTYPE_L4_TCP,
-		[96] =  RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4
-			| RTE_PTYPE_L4_FRAG,
-		[16] =  RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6,
-		[18] =  RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6
-			| RTE_PTYPE_L4_UDP,
-		[20] =  RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6
-			| RTE_PTYPE_L4_TCP,
-		[80] =  RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6
-			| RTE_PTYPE_L4_FRAG,
-		/* All others reserved */
-	};
-	cqrd_flags &= CQ_ENET_RQ_DESC_FLAGS_IPV4_FRAGMENT
-		| CQ_ENET_RQ_DESC_FLAGS_IPV4 | CQ_ENET_RQ_DESC_FLAGS_IPV6
-		| CQ_ENET_RQ_DESC_FLAGS_TCP | CQ_ENET_RQ_DESC_FLAGS_UDP;
-	return cq_type_table[cqrd_flags];
-}
-
-static inline void
-enic_cq_rx_to_pkt_flags(struct cq_desc *cqd, struct rte_mbuf *mbuf)
-{
-	struct cq_enet_rq_desc *cqrd = (struct cq_enet_rq_desc *)cqd;
-	uint16_t ciflags, bwflags, pkt_flags = 0;
-	ciflags = enic_cq_rx_desc_ciflags(cqrd);
-	bwflags = enic_cq_rx_desc_bwflags(cqrd);
-
-	mbuf->ol_flags = 0;
-
-	/* flags are meaningless if !EOP */
-	if (unlikely(!enic_cq_rx_desc_eop(ciflags)))
-		goto mbuf_flags_done;
-
-	/* VLAN stripping */
-	if (bwflags & CQ_ENET_RQ_DESC_FLAGS_VLAN_STRIPPED) {
-		pkt_flags |= PKT_RX_VLAN_PKT;
-		mbuf->vlan_tci = enic_cq_rx_desc_vlan(cqrd);
-	} else {
-		mbuf->vlan_tci = 0;
-	}
-
-	/* RSS flag */
-	if (enic_cq_rx_desc_rss_type(cqrd)) {
-		pkt_flags |= PKT_RX_RSS_HASH;
-		mbuf->hash.rss = enic_cq_rx_desc_rss_hash(cqrd);
-	}
-
-	/* checksum flags */
-	if (!enic_cq_rx_desc_csum_not_calc(cqrd) &&
-		(mbuf->packet_type & RTE_PTYPE_L3_IPV4)) {
-		if (unlikely(!enic_cq_rx_desc_ipv4_csum_ok(cqrd)))
-			pkt_flags |= PKT_RX_IP_CKSUM_BAD;
-		if (mbuf->packet_type & (RTE_PTYPE_L4_UDP | RTE_PTYPE_L4_TCP)) {
-			if (unlikely(!enic_cq_rx_desc_tcp_udp_csum_ok(cqrd)))
-				pkt_flags |= PKT_RX_L4_CKSUM_BAD;
-		}
-	}
-
- mbuf_flags_done:
-	mbuf->ol_flags = pkt_flags;
-}
-
-static inline uint32_t
-enic_ring_add(uint32_t n_descriptors, uint32_t i0, uint32_t i1)
-{
-	uint32_t d = i0 + i1;
-	RTE_ASSERT(i0 < n_descriptors);
-	RTE_ASSERT(i1 < n_descriptors);
-	d -= (d >= n_descriptors) ? n_descriptors : 0;
-	return d;
-}
-
-
-uint16_t
-enic_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
-	       uint16_t nb_pkts)
-{
-	struct vnic_rq *rq = rx_queue;
-	struct enic *enic = vnic_dev_priv(rq->vdev);
-	unsigned int rx_id;
-	struct rte_mbuf *nmb, *rxmb;
-	uint16_t nb_rx = 0, nb_err = 0;
-	uint16_t nb_hold;
-	struct vnic_cq *cq;
-	volatile struct cq_desc *cqd_ptr;
-	uint8_t color;
-
-	cq = &enic->cq[enic_cq_rq(enic, rq->index)];
-	rx_id = cq->to_clean;		/* index of cqd, rqd, mbuf_table */
-	cqd_ptr = (struct cq_desc *)(cq->ring.descs) + rx_id;
-
-	nb_hold = rq->rx_nb_hold;	/* mbufs held by software */
-
-	while (nb_rx < nb_pkts) {
-		volatile struct rq_enet_desc *rqd_ptr;
-		dma_addr_t dma_addr;
-		struct cq_desc cqd;
-		uint8_t packet_error;
-
-		/* Check for pkts available */
-		color = (cqd_ptr->type_color >> CQ_DESC_COLOR_SHIFT)
-			& CQ_DESC_COLOR_MASK;
-		if (color == cq->last_color)
-			break;
-
-		/* Get the cq descriptor and rq pointer */
-		cqd = *cqd_ptr;
-		rqd_ptr = (struct rq_enet_desc *)(rq->ring.descs) + rx_id;
-
-		/* allocate a new mbuf */
-		nmb = rte_mbuf_raw_alloc(rq->mp);
-		if (nmb == NULL) {
-			rte_atomic64_inc(&enic->soft_stats.rx_nombuf);
-			break;
-		}
-
-		/* A packet error means descriptor and data are untrusted */
-		packet_error = enic_cq_rx_check_err(&cqd);
-
-		/* Get the mbuf to return and replace with one just allocated */
-		rxmb = rq->mbuf_ring[rx_id];
-		rq->mbuf_ring[rx_id] = nmb;
-
-		/* Increment cqd, rqd, mbuf_table index */
-		rx_id++;
-		if (unlikely(rx_id == rq->ring.desc_count)) {
-			rx_id = 0;
-			cq->last_color = cq->last_color ? 0 : 1;
-		}
-
-		/* Prefetch next mbuf & desc while processing current one */
-		cqd_ptr = (struct cq_desc *)(cq->ring.descs) + rx_id;
-		rte_enic_prefetch(cqd_ptr);
-		rte_enic_prefetch(rq->mbuf_ring[rx_id]);
-		rte_enic_prefetch((struct rq_enet_desc *)(rq->ring.descs)
-				 + rx_id);
-
-		/* Push descriptor for newly allocated mbuf */
-		dma_addr = (dma_addr_t)(nmb->buf_physaddr
-			   + RTE_PKTMBUF_HEADROOM);
-		rqd_ptr->address = rte_cpu_to_le_64(dma_addr);
-		rqd_ptr->length_type = cpu_to_le16(nmb->buf_len
-				       - RTE_PKTMBUF_HEADROOM);
-
-		/* Drop incoming bad packet */
-		if (unlikely(packet_error)) {
-			rte_pktmbuf_free(rxmb);
-			nb_err++;
-			continue;
-		}
-
-		/* Fill in the rest of the mbuf */
-		rxmb->data_off = RTE_PKTMBUF_HEADROOM;
-		rxmb->nb_segs = 1;
-		rxmb->next = NULL;
-		rxmb->port = enic->port_id;
-		rxmb->pkt_len = enic_cq_rx_desc_n_bytes(&cqd);
-		rxmb->packet_type = enic_cq_rx_flags_to_pkt_type(&cqd);
-		enic_cq_rx_to_pkt_flags(&cqd, rxmb);
-		rxmb->data_len = rxmb->pkt_len;
-
-		/* prefetch mbuf data for caller */
-		rte_packet_prefetch(RTE_PTR_ADD(rxmb->buf_addr,
-				    RTE_PKTMBUF_HEADROOM));
-
-		/* store the mbuf address into the next entry of the array */
-		rx_pkts[nb_rx++] = rxmb;
-	}
-
-	nb_hold += nb_rx + nb_err;
-	cq->to_clean = rx_id;
-
-	if (nb_hold > rq->rx_free_thresh) {
-		rq->posted_index = enic_ring_add(rq->ring.desc_count,
-				rq->posted_index, nb_hold);
-		nb_hold = 0;
-		rte_mb();
-		iowrite32(rq->posted_index, &rq->ctrl->posted_index);
-	}
-
-	rq->rx_nb_hold = nb_hold;
-
-	return nb_rx;
-}
diff --git a/drivers/net/enic/enic_rxtx.c b/drivers/net/enic/enic_rxtx.c
new file mode 100644
index 0000000..056a297
--- /dev/null
+++ b/drivers/net/enic/enic_rxtx.c
@@ -0,0 +1,481 @@ 
+/* Copyright 2008-2016 Cisco Systems, Inc.  All rights reserved.
+ * Copyright 2007 Nuova Systems, Inc.  All rights reserved.
+ *
+ * Copyright (c) 2014, Cisco Systems, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <rte_mbuf.h>
+#include <rte_ethdev.h>
+#include <rte_prefetch.h>
+
+#include "enic_compat.h"
+#include "rq_enet_desc.h"
+#include "enic.h"
+#include "enic_vnic_wq.h"
+
+#define RTE_PMD_USE_PREFETCH
+
+#ifdef RTE_PMD_USE_PREFETCH
+/*Prefetch a cache line into all cache levels. */
+#define rte_enic_prefetch(p) rte_prefetch0(p)
+#else
+#define rte_enic_prefetch(p) do {} while (0)
+#endif
+
+#ifdef RTE_PMD_PACKET_PREFETCH
+#define rte_packet_prefetch(p) rte_prefetch1(p)
+#else
+#define rte_packet_prefetch(p) do {} while (0)
+#endif
+
+static inline uint16_t
+enic_cq_rx_desc_ciflags(struct cq_enet_rq_desc *crd)
+{
+	return le16_to_cpu(crd->completed_index_flags) & ~CQ_DESC_COMP_NDX_MASK;
+}
+
+static inline uint16_t
+enic_cq_rx_desc_bwflags(struct cq_enet_rq_desc *crd)
+{
+	return le16_to_cpu(crd->bytes_written_flags) &
+			   ~CQ_ENET_RQ_DESC_BYTES_WRITTEN_MASK;
+}
+
+static inline uint8_t
+enic_cq_rx_desc_packet_error(uint16_t bwflags)
+{
+	return (bwflags & CQ_ENET_RQ_DESC_FLAGS_TRUNCATED) ==
+		CQ_ENET_RQ_DESC_FLAGS_TRUNCATED;
+}
+
+static inline uint8_t
+enic_cq_rx_desc_eop(uint16_t ciflags)
+{
+	return (ciflags & CQ_ENET_RQ_DESC_FLAGS_EOP)
+		== CQ_ENET_RQ_DESC_FLAGS_EOP;
+}
+
+static inline uint8_t
+enic_cq_rx_desc_csum_not_calc(struct cq_enet_rq_desc *cqrd)
+{
+	return (le16_to_cpu(cqrd->q_number_rss_type_flags) &
+		CQ_ENET_RQ_DESC_FLAGS_CSUM_NOT_CALC) ==
+		CQ_ENET_RQ_DESC_FLAGS_CSUM_NOT_CALC;
+}
+
+static inline uint8_t
+enic_cq_rx_desc_ipv4_csum_ok(struct cq_enet_rq_desc *cqrd)
+{
+	return (cqrd->flags & CQ_ENET_RQ_DESC_FLAGS_IPV4_CSUM_OK) ==
+		CQ_ENET_RQ_DESC_FLAGS_IPV4_CSUM_OK;
+}
+
+static inline uint8_t
+enic_cq_rx_desc_tcp_udp_csum_ok(struct cq_enet_rq_desc *cqrd)
+{
+	return (cqrd->flags & CQ_ENET_RQ_DESC_FLAGS_TCP_UDP_CSUM_OK) ==
+		CQ_ENET_RQ_DESC_FLAGS_TCP_UDP_CSUM_OK;
+}
+
+static inline uint8_t
+enic_cq_rx_desc_rss_type(struct cq_enet_rq_desc *cqrd)
+{
+	return (uint8_t)((le16_to_cpu(cqrd->q_number_rss_type_flags) >>
+		CQ_DESC_Q_NUM_BITS) & CQ_ENET_RQ_DESC_RSS_TYPE_MASK);
+}
+
+static inline uint32_t
+enic_cq_rx_desc_rss_hash(struct cq_enet_rq_desc *cqrd)
+{
+	return le32_to_cpu(cqrd->rss_hash);
+}
+
+static inline uint16_t
+enic_cq_rx_desc_vlan(struct cq_enet_rq_desc *cqrd)
+{
+	return le16_to_cpu(cqrd->vlan);
+}
+
+static inline uint16_t
+enic_cq_rx_desc_n_bytes(struct cq_desc *cqd)
+{
+	struct cq_enet_rq_desc *cqrd = (struct cq_enet_rq_desc *)cqd;
+	return le16_to_cpu(cqrd->bytes_written_flags) &
+		CQ_ENET_RQ_DESC_BYTES_WRITTEN_MASK;
+}
+
+static inline uint8_t
+enic_cq_rx_check_err(struct cq_desc *cqd)
+{
+	struct cq_enet_rq_desc *cqrd = (struct cq_enet_rq_desc *)cqd;
+	uint16_t bwflags;
+
+	bwflags = enic_cq_rx_desc_bwflags(cqrd);
+	if (unlikely(enic_cq_rx_desc_packet_error(bwflags)))
+		return 1;
+	return 0;
+}
+
+/* Lookup table to translate RX CQ flags to mbuf flags. */
+static inline uint32_t
+enic_cq_rx_flags_to_pkt_type(struct cq_desc *cqd)
+{
+	struct cq_enet_rq_desc *cqrd = (struct cq_enet_rq_desc *)cqd;
+	uint8_t cqrd_flags = cqrd->flags;
+	static const uint32_t cq_type_table[128] __rte_cache_aligned = {
+		[32] =  RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4,
+		[34] =  RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4
+			| RTE_PTYPE_L4_UDP,
+		[36] =  RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4
+			| RTE_PTYPE_L4_TCP,
+		[96] =  RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV4
+			| RTE_PTYPE_L4_FRAG,
+		[16] =  RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6,
+		[18] =  RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6
+			| RTE_PTYPE_L4_UDP,
+		[20] =  RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6
+			| RTE_PTYPE_L4_TCP,
+		[80] =  RTE_PTYPE_L2_ETHER | RTE_PTYPE_L3_IPV6
+			| RTE_PTYPE_L4_FRAG,
+		/* All others reserved */
+	};
+	cqrd_flags &= CQ_ENET_RQ_DESC_FLAGS_IPV4_FRAGMENT
+		| CQ_ENET_RQ_DESC_FLAGS_IPV4 | CQ_ENET_RQ_DESC_FLAGS_IPV6
+		| CQ_ENET_RQ_DESC_FLAGS_TCP | CQ_ENET_RQ_DESC_FLAGS_UDP;
+	return cq_type_table[cqrd_flags];
+}
+
+static inline void
+enic_cq_rx_to_pkt_flags(struct cq_desc *cqd, struct rte_mbuf *mbuf)
+{
+	struct cq_enet_rq_desc *cqrd = (struct cq_enet_rq_desc *)cqd;
+	uint16_t ciflags, bwflags, pkt_flags = 0;
+	ciflags = enic_cq_rx_desc_ciflags(cqrd);
+	bwflags = enic_cq_rx_desc_bwflags(cqrd);
+
+	mbuf->ol_flags = 0;
+
+	/* flags are meaningless if !EOP */
+	if (unlikely(!enic_cq_rx_desc_eop(ciflags)))
+		goto mbuf_flags_done;
+
+	/* VLAN stripping */
+	if (bwflags & CQ_ENET_RQ_DESC_FLAGS_VLAN_STRIPPED) {
+		pkt_flags |= PKT_RX_VLAN_PKT;
+		mbuf->vlan_tci = enic_cq_rx_desc_vlan(cqrd);
+	} else {
+		mbuf->vlan_tci = 0;
+	}
+
+	/* RSS flag */
+	if (enic_cq_rx_desc_rss_type(cqrd)) {
+		pkt_flags |= PKT_RX_RSS_HASH;
+		mbuf->hash.rss = enic_cq_rx_desc_rss_hash(cqrd);
+	}
+
+	/* checksum flags */
+	if (!enic_cq_rx_desc_csum_not_calc(cqrd) &&
+		(mbuf->packet_type & RTE_PTYPE_L3_IPV4)) {
+		if (unlikely(!enic_cq_rx_desc_ipv4_csum_ok(cqrd)))
+			pkt_flags |= PKT_RX_IP_CKSUM_BAD;
+		if (mbuf->packet_type & (RTE_PTYPE_L4_UDP | RTE_PTYPE_L4_TCP)) {
+			if (unlikely(!enic_cq_rx_desc_tcp_udp_csum_ok(cqrd)))
+				pkt_flags |= PKT_RX_L4_CKSUM_BAD;
+		}
+	}
+
+ mbuf_flags_done:
+	mbuf->ol_flags = pkt_flags;
+}
+
+static inline uint32_t
+enic_ring_add(uint32_t n_descriptors, uint32_t i0, uint32_t i1)
+{
+	uint32_t d = i0 + i1;
+	RTE_ASSERT(i0 < n_descriptors);
+	RTE_ASSERT(i1 < n_descriptors);
+	d -= (d >= n_descriptors) ? n_descriptors : 0;
+	return d;
+}
+
+
+uint16_t
+enic_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
+	       uint16_t nb_pkts)
+{
+	struct vnic_rq *rq = rx_queue;
+	struct enic *enic = vnic_dev_priv(rq->vdev);
+	unsigned int rx_id;
+	struct rte_mbuf *nmb, *rxmb;
+	uint16_t nb_rx = 0, nb_err = 0;
+	uint16_t nb_hold;
+	struct vnic_cq *cq;
+	volatile struct cq_desc *cqd_ptr;
+	uint8_t color;
+
+	cq = &enic->cq[enic_cq_rq(enic, rq->index)];
+	rx_id = cq->to_clean;		/* index of cqd, rqd, mbuf_table */
+	cqd_ptr = (struct cq_desc *)(cq->ring.descs) + rx_id;
+
+	nb_hold = rq->rx_nb_hold;	/* mbufs held by software */
+
+	while (nb_rx < nb_pkts) {
+		volatile struct rq_enet_desc *rqd_ptr;
+		dma_addr_t dma_addr;
+		struct cq_desc cqd;
+		uint8_t packet_error;
+
+		/* Check for pkts available */
+		color = (cqd_ptr->type_color >> CQ_DESC_COLOR_SHIFT)
+			& CQ_DESC_COLOR_MASK;
+		if (color == cq->last_color)
+			break;
+
+		/* Get the cq descriptor and rq pointer */
+		cqd = *cqd_ptr;
+		rqd_ptr = (struct rq_enet_desc *)(rq->ring.descs) + rx_id;
+
+		/* allocate a new mbuf */
+		nmb = rte_mbuf_raw_alloc(rq->mp);
+		if (nmb == NULL) {
+			rte_atomic64_inc(&enic->soft_stats.rx_nombuf);
+			break;
+		}
+
+		/* A packet error means descriptor and data are untrusted */
+		packet_error = enic_cq_rx_check_err(&cqd);
+
+		/* Get the mbuf to return and replace with one just allocated */
+		rxmb = rq->mbuf_ring[rx_id];
+		rq->mbuf_ring[rx_id] = nmb;
+
+		/* Increment cqd, rqd, mbuf_table index */
+		rx_id++;
+		if (unlikely(rx_id == rq->ring.desc_count)) {
+			rx_id = 0;
+			cq->last_color = cq->last_color ? 0 : 1;
+		}
+
+		/* Prefetch next mbuf & desc while processing current one */
+		cqd_ptr = (struct cq_desc *)(cq->ring.descs) + rx_id;
+		rte_enic_prefetch(cqd_ptr);
+		rte_enic_prefetch(rq->mbuf_ring[rx_id]);
+		rte_enic_prefetch((struct rq_enet_desc *)(rq->ring.descs)
+				 + rx_id);
+
+		/* Push descriptor for newly allocated mbuf */
+		dma_addr = (dma_addr_t)(nmb->buf_physaddr
+			   + RTE_PKTMBUF_HEADROOM);
+		rqd_ptr->address = rte_cpu_to_le_64(dma_addr);
+		rqd_ptr->length_type = cpu_to_le16(nmb->buf_len
+				       - RTE_PKTMBUF_HEADROOM);
+
+		/* Drop incoming bad packet */
+		if (unlikely(packet_error)) {
+			rte_pktmbuf_free(rxmb);
+			nb_err++;
+			continue;
+		}
+
+		/* Fill in the rest of the mbuf */
+		rxmb->data_off = RTE_PKTMBUF_HEADROOM;
+		rxmb->nb_segs = 1;
+		rxmb->next = NULL;
+		rxmb->port = enic->port_id;
+		rxmb->pkt_len = enic_cq_rx_desc_n_bytes(&cqd);
+		rxmb->packet_type = enic_cq_rx_flags_to_pkt_type(&cqd);
+		enic_cq_rx_to_pkt_flags(&cqd, rxmb);
+		rxmb->data_len = rxmb->pkt_len;
+
+		/* prefetch mbuf data for caller */
+		rte_packet_prefetch(RTE_PTR_ADD(rxmb->buf_addr,
+				    RTE_PKTMBUF_HEADROOM));
+
+		/* store the mbuf address into the next entry of the array */
+		rx_pkts[nb_rx++] = rxmb;
+	}
+
+	nb_hold += nb_rx + nb_err;
+	cq->to_clean = rx_id;
+
+	if (nb_hold > rq->rx_free_thresh) {
+		rq->posted_index = enic_ring_add(rq->ring.desc_count,
+				rq->posted_index, nb_hold);
+		nb_hold = 0;
+		rte_mb();
+		iowrite32(rq->posted_index, &rq->ctrl->posted_index);
+	}
+
+	rq->rx_nb_hold = nb_hold;
+
+	return nb_rx;
+}
+
+static void enic_wq_free_buf(struct vnic_wq *wq,
+	__rte_unused struct cq_desc *cq_desc,
+	struct vnic_wq_buf *buf,
+	__rte_unused void *opaque)
+{
+	enic_free_wq_buf(wq, buf);
+}
+
+static int enic_wq_service(struct vnic_dev *vdev, struct cq_desc *cq_desc,
+	__rte_unused u8 type, u16 q_number, u16 completed_index, void *opaque)
+{
+	struct enic *enic = vnic_dev_priv(vdev);
+
+	vnic_wq_service(&enic->wq[q_number], cq_desc,
+		completed_index, enic_wq_free_buf,
+		opaque);
+
+	return 0;
+}
+
+unsigned int enic_cleanup_wq(struct enic *enic, struct vnic_wq *wq)
+{
+	unsigned int cq = enic_cq_wq(enic, wq->index);
+
+	/* Return the work done */
+	return vnic_cq_service(&enic->cq[cq],
+		-1 /*wq_work_to_do*/, enic_wq_service, NULL);
+}
+
+void enic_post_wq_index(struct vnic_wq *wq)
+{
+	enic_vnic_post_wq_index(wq);
+}
+
+void enic_send_pkt(struct enic *enic, struct vnic_wq *wq,
+		   struct rte_mbuf *tx_pkt, unsigned short len,
+		   uint8_t sop, uint8_t eop, uint8_t cq_entry,
+		   uint16_t ol_flags, uint16_t vlan_tag)
+{
+	struct wq_enet_desc *desc = vnic_wq_next_desc(wq);
+	uint16_t mss = 0;
+	uint8_t vlan_tag_insert = 0;
+	uint64_t bus_addr = (dma_addr_t)
+	    (tx_pkt->buf_physaddr + tx_pkt->data_off);
+
+	if (sop) {
+		if (ol_flags & PKT_TX_VLAN_PKT)
+			vlan_tag_insert = 1;
+
+		if (enic->hw_ip_checksum) {
+			if (ol_flags & PKT_TX_IP_CKSUM)
+				mss |= ENIC_CALC_IP_CKSUM;
+
+			if (ol_flags & PKT_TX_TCP_UDP_CKSUM)
+				mss |= ENIC_CALC_TCP_UDP_CKSUM;
+		}
+	}
+
+	wq_enet_desc_enc(desc,
+		bus_addr,
+		len,
+		mss,
+		0 /* header_length */,
+		0 /* offload_mode WQ_ENET_OFFLOAD_MODE_CSUM */,
+		eop,
+		cq_entry,
+		0 /* fcoe_encap */,
+		vlan_tag_insert,
+		vlan_tag,
+		0 /* loopback */);
+
+	enic_vnic_post_wq(wq, (void *)tx_pkt, bus_addr, len,
+			  sop,
+			  1 /*desc_skip_cnt*/,
+			  cq_entry,
+			  0 /*compressed send*/,
+			  0 /*wrid*/);
+}
+
+uint16_t enicpmd_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
+	uint16_t nb_pkts)
+{
+	uint16_t index;
+	unsigned int frags;
+	unsigned int pkt_len;
+	unsigned int seg_len;
+	unsigned int inc_len;
+	unsigned int nb_segs;
+	struct rte_mbuf *tx_pkt, *next_tx_pkt;
+	struct vnic_wq *wq = (struct vnic_wq *)tx_queue;
+	struct enic *enic = vnic_dev_priv(wq->vdev);
+	unsigned short vlan_id;
+	unsigned short ol_flags;
+	uint8_t last_seg, eop;
+	unsigned int host_tx_descs = 0;
+
+	for (index = 0; index < nb_pkts; index++) {
+		tx_pkt = *tx_pkts++;
+		inc_len = 0;
+		nb_segs = tx_pkt->nb_segs;
+		if (nb_segs > vnic_wq_desc_avail(wq)) {
+			if (index > 0)
+				enic_post_wq_index(wq);
+
+			/* wq cleanup and try again */
+			if (!enic_cleanup_wq(enic, wq) ||
+				(nb_segs > vnic_wq_desc_avail(wq))) {
+				return index;
+			}
+		}
+
+		pkt_len = tx_pkt->pkt_len;
+		vlan_id = tx_pkt->vlan_tci;
+		ol_flags = tx_pkt->ol_flags;
+		for (frags = 0; inc_len < pkt_len; frags++) {
+			if (!tx_pkt)
+				break;
+			next_tx_pkt = tx_pkt->next;
+			seg_len = tx_pkt->data_len;
+			inc_len += seg_len;
+
+			host_tx_descs++;
+			last_seg = 0;
+			eop = 0;
+			if ((pkt_len == inc_len) || !next_tx_pkt) {
+				eop = 1;
+				/* post if last packet in batch or > thresh */
+				if ((index == (nb_pkts - 1)) ||
+				   (host_tx_descs > ENIC_TX_POST_THRESH)) {
+					last_seg = 1;
+					host_tx_descs = 0;
+				}
+			}
+			enic_send_pkt(enic, wq, tx_pkt, (unsigned short)seg_len,
+				      !frags, eop, last_seg, ol_flags, vlan_id);
+			tx_pkt = next_tx_pkt;
+		}
+	}
+
+	enic_cleanup_wq(enic, wq);
+	return index;
+}