Adding dpdk 2.2 instead of dpdk 1.8 and making changes to make compilation work.

40G and 10G filters do not work yet.

1 files changed, 0 insertions, 1209 deletions

diff --git a/src/dpdk_lib18/librte_pmd_virtio/virtio_ethdev.c b/src/dpdk_lib18/librte_pmd_virtio/virtio_ethdev.c
deleted file mode 100755
index b3b5bb6a..00000000
--- a/src/dpdk_lib18/librte_pmd_virtio/virtio_ethdev.c
+++ /dev/null
@@ -1,1209 +0,0 @@
-/*-
- *   BSD LICENSE
- *
- *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
- *   All rights reserved.
- *
- *   Redistribution and use in source and binary forms, with or without
- *   modification, are permitted provided that the following conditions
- *   are met:
- *
- *     * Redistributions of source code must retain the above copyright
- *       notice, this list of conditions and the following disclaimer.
- *     * 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.
- *     * Neither the name of Intel Corporation nor the names of its
- *       contributors may be used to endorse or promote products derived
- *       from this software without specific prior written permission.
- *
- *   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
- *   OWNER 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 <stdint.h>
-#include <string.h>
-#include <stdio.h>
-#include <errno.h>
-#include <unistd.h>
-#ifdef RTE_EXEC_ENV_LINUXAPP
-#include <dirent.h>
-#endif
-
-#include <rte_ethdev.h>
-#include <rte_memcpy.h>
-#include <rte_string_fns.h>
-#include <rte_memzone.h>
-#include <rte_malloc.h>
-#include <rte_atomic.h>
-#include <rte_branch_prediction.h>
-#include <rte_pci.h>
-#include <rte_ether.h>
-#include <rte_common.h>
-
-#include <rte_memory.h>
-#include <rte_eal.h>
-#include <rte_dev.h>
-
-#include "virtio_ethdev.h"
-#include "virtio_pci.h"
-#include "virtio_logs.h"
-#include "virtqueue.h"
-
-
-static int eth_virtio_dev_init(struct eth_driver *eth_drv,
-		struct rte_eth_dev *eth_dev);
-static int  virtio_dev_configure(struct rte_eth_dev *dev);
-static int  virtio_dev_start(struct rte_eth_dev *dev);
-static void virtio_dev_stop(struct rte_eth_dev *dev);
-static void virtio_dev_promiscuous_enable(struct rte_eth_dev *dev);
-static void virtio_dev_promiscuous_disable(struct rte_eth_dev *dev);
-static void virtio_dev_allmulticast_enable(struct rte_eth_dev *dev);
-static void virtio_dev_allmulticast_disable(struct rte_eth_dev *dev);
-static void virtio_dev_info_get(struct rte_eth_dev *dev,
-				struct rte_eth_dev_info *dev_info);
-static int virtio_dev_link_update(struct rte_eth_dev *dev,
-	__rte_unused int wait_to_complete);
-
-static void virtio_set_hwaddr(struct virtio_hw *hw);
-static void virtio_get_hwaddr(struct virtio_hw *hw);
-
-static void virtio_dev_rx_queue_release(__rte_unused void *rxq);
-static void virtio_dev_tx_queue_release(__rte_unused void *txq);
-
-static void virtio_dev_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats);
-static void virtio_dev_stats_reset(struct rte_eth_dev *dev);
-static void virtio_dev_free_mbufs(struct rte_eth_dev *dev);
-
-static int virtio_dev_queue_stats_mapping_set(
-	__rte_unused struct rte_eth_dev *eth_dev,
-	__rte_unused uint16_t queue_id,
-	__rte_unused uint8_t stat_idx,
-	__rte_unused uint8_t is_rx);
-
-/*
- * The set of PCI devices this driver supports
- */
-static struct rte_pci_id pci_id_virtio_map[] = {
-
-#define RTE_PCI_DEV_ID_DECL_VIRTIO(vend, dev) {RTE_PCI_DEVICE(vend, dev)},
-#include "rte_pci_dev_ids.h"
-
-{ .vendor_id = 0, /* sentinel */ },
-};
-
-static int
-virtio_send_command(struct virtqueue *vq, struct virtio_pmd_ctrl *ctrl,
-		int *dlen, int pkt_num)
-{
-	uint32_t head = vq->vq_desc_head_idx, i;
-	int k, sum = 0;
-	virtio_net_ctrl_ack status = ~0;
-	struct virtio_pmd_ctrl result;
-
-	ctrl->status = status;
-
-	if (!vq->hw->cvq) {
-		PMD_INIT_LOG(ERR,
-			     "%s(): Control queue is not supported.",
-			     __func__);
-		return -1;
-	}
-
-	PMD_INIT_LOG(DEBUG, "vq->vq_desc_head_idx = %d, status = %d, "
-		"vq->hw->cvq = %p vq = %p",
-		vq->vq_desc_head_idx, status, vq->hw->cvq, vq);
-
-	if ((vq->vq_free_cnt < ((uint32_t)pkt_num + 2)) || (pkt_num < 1))
-		return -1;
-
-	memcpy(vq->virtio_net_hdr_mz->addr, ctrl,
-		sizeof(struct virtio_pmd_ctrl));
-
-	/*
-	 * Format is enforced in qemu code:
-	 * One TX packet for header;
-	 * At least one TX packet per argument;
-	 * One RX packet for ACK.
-	 */
-	vq->vq_ring.desc[head].flags = VRING_DESC_F_NEXT;
-	vq->vq_ring.desc[head].addr = vq->virtio_net_hdr_mz->phys_addr;
-	vq->vq_ring.desc[head].len = sizeof(struct virtio_net_ctrl_hdr);
-	vq->vq_free_cnt--;
-	i = vq->vq_ring.desc[head].next;
-
-	for (k = 0; k < pkt_num; k++) {
-		vq->vq_ring.desc[i].flags = VRING_DESC_F_NEXT;
-		vq->vq_ring.desc[i].addr = vq->virtio_net_hdr_mz->phys_addr
-			+ sizeof(struct virtio_net_ctrl_hdr)
-			+ sizeof(ctrl->status) + sizeof(uint8_t)*sum;
-		vq->vq_ring.desc[i].len = dlen[k];
-		sum += dlen[k];
-		vq->vq_free_cnt--;
-		i = vq->vq_ring.desc[i].next;
-	}
-
-	vq->vq_ring.desc[i].flags = VRING_DESC_F_WRITE;
-	vq->vq_ring.desc[i].addr = vq->virtio_net_hdr_mz->phys_addr
-			+ sizeof(struct virtio_net_ctrl_hdr);
-	vq->vq_ring.desc[i].len = sizeof(ctrl->status);
-	vq->vq_free_cnt--;
-
-	vq->vq_desc_head_idx = vq->vq_ring.desc[i].next;
-
-	vq_update_avail_ring(vq, head);
-	vq_update_avail_idx(vq);
-
-	PMD_INIT_LOG(DEBUG, "vq->vq_queue_index = %d", vq->vq_queue_index);
-
-	virtqueue_notify(vq);
-
-	while (vq->vq_used_cons_idx == vq->vq_ring.used->idx)
-		usleep(100);
-
-	while (vq->vq_used_cons_idx != vq->vq_ring.used->idx) {
-		uint32_t idx, desc_idx, used_idx;
-		struct vring_used_elem *uep;
-
-		rmb();
-
-		used_idx = (uint32_t)(vq->vq_used_cons_idx
-				& (vq->vq_nentries - 1));
-		uep = &vq->vq_ring.used->ring[used_idx];
-		idx = (uint32_t) uep->id;
-		desc_idx = idx;
-
-		while (vq->vq_ring.desc[desc_idx].flags & VRING_DESC_F_NEXT) {
-			desc_idx = vq->vq_ring.desc[desc_idx].next;
-			vq->vq_free_cnt++;
-		}
-
-		vq->vq_ring.desc[desc_idx].next = vq->vq_desc_head_idx;
-		vq->vq_desc_head_idx = idx;
-
-		vq->vq_used_cons_idx++;
-		vq->vq_free_cnt++;
-	}
-
-	PMD_INIT_LOG(DEBUG, "vq->vq_free_cnt=%d\nvq->vq_desc_head_idx=%d",
-			vq->vq_free_cnt, vq->vq_desc_head_idx);
-
-	memcpy(&result, vq->virtio_net_hdr_mz->addr,
-			sizeof(struct virtio_pmd_ctrl));
-
-	return result.status;
-}
-
-static int
-virtio_set_multiple_queues(struct rte_eth_dev *dev, uint16_t nb_queues)
-{
-	struct virtio_hw *hw
-		= VIRTIO_DEV_PRIVATE_TO_HW(dev->data->dev_private);
-	struct virtio_pmd_ctrl ctrl;
-	int dlen[1];
-	int ret;
-
-	ctrl.hdr.class = VIRTIO_NET_CTRL_MQ;
-	ctrl.hdr.cmd = VIRTIO_NET_CTRL_MQ_VQ_PAIRS_SET;
-	memcpy(ctrl.data, &nb_queues, sizeof(uint16_t));
-
-	dlen[0] = sizeof(uint16_t);
-
-	ret = virtio_send_command(hw->cvq, &ctrl, dlen, 1);
-
-	if (ret) {
-		PMD_INIT_LOG(ERR, "Multiqueue configured but send command "
-			  "failed, this is too late now...");
-		return -EINVAL;
-	}
-
-	return 0;
-}
-
-int virtio_dev_queue_setup(struct rte_eth_dev *dev,
-			int queue_type,
-			uint16_t queue_idx,
-			uint8_t  vtpci_queue_idx,
-			uint16_t nb_desc,
-			unsigned int socket_id,
-			struct virtqueue **pvq)
-{
-	char vq_name[VIRTQUEUE_MAX_NAME_SZ];
-	const struct rte_memzone *mz;
-	uint16_t vq_size;
-	int size;
-	struct virtio_hw *hw =
-		VIRTIO_DEV_PRIVATE_TO_HW(dev->data->dev_private);
-	struct virtqueue  *vq = NULL;
-
-	/* Write the virtqueue index to the Queue Select Field */
-	VIRTIO_WRITE_REG_2(hw, VIRTIO_PCI_QUEUE_SEL, vtpci_queue_idx);
-	PMD_INIT_LOG(DEBUG, "selecting queue: %d", vtpci_queue_idx);
-
-	/*
-	 * Read the virtqueue size from the Queue Size field
-	 * Always power of 2 and if 0 virtqueue does not exist
-	 */
-	vq_size = VIRTIO_READ_REG_2(hw, VIRTIO_PCI_QUEUE_NUM);
-	PMD_INIT_LOG(DEBUG, "vq_size: %d nb_desc:%d", vq_size, nb_desc);
-	if (nb_desc == 0)
-		nb_desc = vq_size;
-	if (vq_size == 0) {
-		PMD_INIT_LOG(ERR, "%s: virtqueue does not exist", __func__);
-		return -EINVAL;
-	} else if (!rte_is_power_of_2(vq_size)) {
-		PMD_INIT_LOG(ERR, "%s: virtqueue size is not powerof 2", __func__);
-		return -EINVAL;
-	} else if (nb_desc != vq_size) {
-		PMD_INIT_LOG(ERR, "Warning: nb_desc(%d) is not equal to vq size (%d), fall to vq size",
-			nb_desc, vq_size);
-		nb_desc = vq_size;
-	}
-
-	if (queue_type == VTNET_RQ) {
-		snprintf(vq_name, sizeof(vq_name), "port%d_rvq%d",
-			dev->data->port_id, queue_idx);
-		vq = rte_zmalloc(vq_name, sizeof(struct virtqueue) +
-			vq_size * sizeof(struct vq_desc_extra), RTE_CACHE_LINE_SIZE);
-	} else if (queue_type == VTNET_TQ) {
-		snprintf(vq_name, sizeof(vq_name), "port%d_tvq%d",
-			dev->data->port_id, queue_idx);
-		vq = rte_zmalloc(vq_name, sizeof(struct virtqueue) +
-			vq_size * sizeof(struct vq_desc_extra), RTE_CACHE_LINE_SIZE);
-	} else if (queue_type == VTNET_CQ) {
-		snprintf(vq_name, sizeof(vq_name), "port%d_cvq",
-			dev->data->port_id);
-		vq = rte_zmalloc(vq_name, sizeof(struct virtqueue) +
-			vq_size * sizeof(struct vq_desc_extra),
-			RTE_CACHE_LINE_SIZE);
-	}
-	if (vq == NULL) {
-		PMD_INIT_LOG(ERR, "%s: Can not allocate virtqueue", __func__);
-		return (-ENOMEM);
-	}
-
-	vq->hw = hw;
-	vq->port_id = dev->data->port_id;
-	vq->queue_id = queue_idx;
-	vq->vq_queue_index = vtpci_queue_idx;
-	vq->vq_alignment = VIRTIO_PCI_VRING_ALIGN;
-	vq->vq_nentries = vq_size;
-	vq->vq_free_cnt = vq_size;
-
-	/*
-	 * Reserve a memzone for vring elements
-	 */
-	size = vring_size(vq_size, VIRTIO_PCI_VRING_ALIGN);
-	vq->vq_ring_size = RTE_ALIGN_CEIL(size, VIRTIO_PCI_VRING_ALIGN);
-	PMD_INIT_LOG(DEBUG, "vring_size: %d, rounded_vring_size: %d", size, vq->vq_ring_size);
-
-	mz = rte_memzone_reserve_aligned(vq_name, vq->vq_ring_size,
-		socket_id, 0, VIRTIO_PCI_VRING_ALIGN);
-	if (mz == NULL) {
-		rte_free(vq);
-		return -ENOMEM;
-	}
-
-	/*
-	 * Virtio PCI device VIRTIO_PCI_QUEUE_PF register is 32bit,
-	 * and only accepts 32 bit page frame number.
-	 * Check if the allocated physical memory exceeds 16TB.
-	 */
-	if ((mz->phys_addr + vq->vq_ring_size - 1) >> (VIRTIO_PCI_QUEUE_ADDR_SHIFT + 32)) {
-		PMD_INIT_LOG(ERR, "vring address shouldn't be above 16TB!");
-		rte_free(vq);
-		return -ENOMEM;
-	}
-
-	memset(mz->addr, 0, sizeof(mz->len));
-	vq->mz = mz;
-	vq->vq_ring_mem = mz->phys_addr;
-	vq->vq_ring_virt_mem = mz->addr;
-	PMD_INIT_LOG(DEBUG, "vq->vq_ring_mem:      0x%"PRIx64, (uint64_t)mz->phys_addr);
-	PMD_INIT_LOG(DEBUG, "vq->vq_ring_virt_mem: 0x%"PRIx64, (uint64_t)mz->addr);
-	vq->virtio_net_hdr_mz  = NULL;
-	vq->virtio_net_hdr_mem = 0;
-
-	if (queue_type == VTNET_TQ) {
-		/*
-		 * For each xmit packet, allocate a virtio_net_hdr
-		 */
-		snprintf(vq_name, sizeof(vq_name), "port%d_tvq%d_hdrzone",
-			dev->data->port_id, queue_idx);
-		vq->virtio_net_hdr_mz = rte_memzone_reserve_aligned(vq_name,
-			vq_size * hw->vtnet_hdr_size,
-			socket_id, 0, RTE_CACHE_LINE_SIZE);
-		if (vq->virtio_net_hdr_mz == NULL) {
-			rte_free(vq);
-			return -ENOMEM;
-		}
-		vq->virtio_net_hdr_mem =
-			vq->virtio_net_hdr_mz->phys_addr;
-		memset(vq->virtio_net_hdr_mz->addr, 0,
-			vq_size * hw->vtnet_hdr_size);
-	} else if (queue_type == VTNET_CQ) {
-		/* Allocate a page for control vq command, data and status */
-		snprintf(vq_name, sizeof(vq_name), "port%d_cvq_hdrzone",
-			dev->data->port_id);
-		vq->virtio_net_hdr_mz = rte_memzone_reserve_aligned(vq_name,
-			PAGE_SIZE, socket_id, 0, RTE_CACHE_LINE_SIZE);
-		if (vq->virtio_net_hdr_mz == NULL) {
-			rte_free(vq);
-			return -ENOMEM;
-		}
-		vq->virtio_net_hdr_mem =
-			vq->virtio_net_hdr_mz->phys_addr;
-		memset(vq->virtio_net_hdr_mz->addr, 0, PAGE_SIZE);
-	}
-
-	/*
-	 * Set guest physical address of the virtqueue
-	 * in VIRTIO_PCI_QUEUE_PFN config register of device
-	 */
-	VIRTIO_WRITE_REG_4(hw, VIRTIO_PCI_QUEUE_PFN,
-			mz->phys_addr >> VIRTIO_PCI_QUEUE_ADDR_SHIFT);
-	*pvq = vq;
-	return 0;
-}
-
-static int
-virtio_dev_cq_queue_setup(struct rte_eth_dev *dev, uint16_t vtpci_queue_idx,
-		uint32_t socket_id)
-{
-	struct virtqueue *vq;
-	uint16_t nb_desc = 0;
-	int ret;
-	struct virtio_hw *hw =
-		VIRTIO_DEV_PRIVATE_TO_HW(dev->data->dev_private);
-
-	PMD_INIT_FUNC_TRACE();
-	ret = virtio_dev_queue_setup(dev, VTNET_CQ, VTNET_SQ_CQ_QUEUE_IDX,
-			vtpci_queue_idx, nb_desc, socket_id, &vq);
-
-	if (ret < 0) {
-		PMD_INIT_LOG(ERR, "control vq initialization failed");
-		return ret;
-	}
-
-	hw->cvq = vq;
-	return 0;
-}
-
-static void
-virtio_dev_close(struct rte_eth_dev *dev)
-{
-	PMD_INIT_LOG(DEBUG, "virtio_dev_close");
-
-	virtio_dev_stop(dev);
-}
-
-static void
-virtio_dev_promiscuous_enable(struct rte_eth_dev *dev)
-{
-	struct virtio_hw *hw
-		= VIRTIO_DEV_PRIVATE_TO_HW(dev->data->dev_private);
-	struct virtio_pmd_ctrl ctrl;
-	int dlen[1];
-	int ret;
-
-	ctrl.hdr.class = VIRTIO_NET_CTRL_RX;
-	ctrl.hdr.cmd = VIRTIO_NET_CTRL_RX_PROMISC;
-	ctrl.data[0] = 1;
-	dlen[0] = 1;
-
-	ret = virtio_send_command(hw->cvq, &ctrl, dlen, 1);
-
-	if (ret)
-		PMD_INIT_LOG(ERR, "Failed to enable promisc");
-}
-
-static void
-virtio_dev_promiscuous_disable(struct rte_eth_dev *dev)
-{
-	struct virtio_hw *hw
-		= VIRTIO_DEV_PRIVATE_TO_HW(dev->data->dev_private);
-	struct virtio_pmd_ctrl ctrl;
-	int dlen[1];
-	int ret;
-
-	ctrl.hdr.class = VIRTIO_NET_CTRL_RX;
-	ctrl.hdr.cmd = VIRTIO_NET_CTRL_RX_PROMISC;
-	ctrl.data[0] = 0;
-	dlen[0] = 1;
-
-	ret = virtio_send_command(hw->cvq, &ctrl, dlen, 1);
-
-	if (ret)
-		PMD_INIT_LOG(ERR, "Failed to disable promisc");
-}
-
-static void
-virtio_dev_allmulticast_enable(struct rte_eth_dev *dev)
-{
-	struct virtio_hw *hw
-		= VIRTIO_DEV_PRIVATE_TO_HW(dev->data->dev_private);
-	struct virtio_pmd_ctrl ctrl;
-	int dlen[1];
-	int ret;
-
-	ctrl.hdr.class = VIRTIO_NET_CTRL_RX;
-	ctrl.hdr.cmd = VIRTIO_NET_CTRL_RX_ALLMULTI;
-	ctrl.data[0] = 1;
-	dlen[0] = 1;
-
-	ret = virtio_send_command(hw->cvq, &ctrl, dlen, 1);
-
-	if (ret)
-		PMD_INIT_LOG(ERR, "Failed to enable allmulticast");
-}
-
-static void
-virtio_dev_allmulticast_disable(struct rte_eth_dev *dev)
-{
-	struct virtio_hw *hw
-		= VIRTIO_DEV_PRIVATE_TO_HW(dev->data->dev_private);
-	struct virtio_pmd_ctrl ctrl;
-	int dlen[1];
-	int ret;
-
-	ctrl.hdr.class = VIRTIO_NET_CTRL_RX;
-	ctrl.hdr.cmd = VIRTIO_NET_CTRL_RX_ALLMULTI;
-	ctrl.data[0] = 0;
-	dlen[0] = 1;
-
-	ret = virtio_send_command(hw->cvq, &ctrl, dlen, 1);
-
-	if (ret)
-		PMD_INIT_LOG(ERR, "Failed to disable allmulticast");
-}
-
-/*
- * dev_ops for virtio, bare necessities for basic operation
- */
-static struct eth_dev_ops virtio_eth_dev_ops = {
-	.dev_configure           = virtio_dev_configure,
-	.dev_start               = virtio_dev_start,
-	.dev_stop                = virtio_dev_stop,
-	.dev_close               = virtio_dev_close,
-	.promiscuous_enable      = virtio_dev_promiscuous_enable,
-	.promiscuous_disable     = virtio_dev_promiscuous_disable,
-	.allmulticast_enable     = virtio_dev_allmulticast_enable,
-	.allmulticast_disable    = virtio_dev_allmulticast_disable,
-
-	.dev_infos_get           = virtio_dev_info_get,
-	.stats_get               = virtio_dev_stats_get,
-	.stats_reset             = virtio_dev_stats_reset,
-	.link_update             = virtio_dev_link_update,
-	.mac_addr_add            = NULL,
-	.mac_addr_remove         = NULL,
-	.rx_queue_setup          = virtio_dev_rx_queue_setup,
-	/* meaningfull only to multiple queue */
-	.rx_queue_release        = virtio_dev_rx_queue_release,
-	.tx_queue_setup          = virtio_dev_tx_queue_setup,
-	/* meaningfull only to multiple queue */
-	.tx_queue_release        = virtio_dev_tx_queue_release,
-	/* collect stats per queue */
-	.queue_stats_mapping_set = virtio_dev_queue_stats_mapping_set,
-};
-
-static inline int
-virtio_dev_atomic_read_link_status(struct rte_eth_dev *dev,
-				struct rte_eth_link *link)
-{
-	struct rte_eth_link *dst = link;
-	struct rte_eth_link *src = &(dev->data->dev_link);
-
-	if (rte_atomic64_cmpset((uint64_t *)dst, *(uint64_t *)dst,
-			*(uint64_t *)src) == 0)
-		return -1;
-
-	return 0;
-}
-
-/**
- * Atomically writes the link status information into global
- * structure rte_eth_dev.
- *
- * @param dev
- *   - Pointer to the structure rte_eth_dev to read from.
- *   - Pointer to the buffer to be saved with the link status.
- *
- * @return
- *   - On success, zero.
- *   - On failure, negative value.
- */
-static inline int
-virtio_dev_atomic_write_link_status(struct rte_eth_dev *dev,
-		struct rte_eth_link *link)
-{
-	struct rte_eth_link *dst = &(dev->data->dev_link);
-	struct rte_eth_link *src = link;
-
-	if (rte_atomic64_cmpset((uint64_t *)dst, *(uint64_t *)dst,
-					*(uint64_t *)src) == 0)
-		return -1;
-
-	return 0;
-}
-
-static void
-virtio_dev_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
-{
-	unsigned i;
-
-	for (i = 0; i < dev->data->nb_tx_queues; i++) {
-		const struct virtqueue *txvq = dev->data->tx_queues[i];
-		if (txvq == NULL)
-			continue;
-
-		stats->opackets += txvq->packets;
-		stats->obytes += txvq->bytes;
-		stats->oerrors += txvq->errors;
-
-		if (i < RTE_ETHDEV_QUEUE_STAT_CNTRS) {
-			stats->q_opackets[i] = txvq->packets;
-			stats->q_obytes[i] = txvq->bytes;
-		}
-	}
-
-	for (i = 0; i < dev->data->nb_rx_queues; i++) {
-		const struct virtqueue *rxvq = dev->data->rx_queues[i];
-		if (rxvq == NULL)
-			continue;
-
-		stats->ipackets += rxvq->packets;
-		stats->ibytes += rxvq->bytes;
-		stats->ierrors += rxvq->errors;
-
-		if (i < RTE_ETHDEV_QUEUE_STAT_CNTRS) {
-			stats->q_ipackets[i] = rxvq->packets;
-			stats->q_ibytes[i] = rxvq->bytes;
-		}
-	}
-
-	stats->rx_nombuf = dev->data->rx_mbuf_alloc_failed;
-}
-
-static void
-virtio_dev_stats_reset(struct rte_eth_dev *dev)
-{
-	unsigned int i;
-
-	for (i = 0; i < dev->data->nb_tx_queues; i++) {
-		struct virtqueue *txvq = dev->data->tx_queues[i];
-		if (txvq == NULL)
-			continue;
-
-		txvq->packets = 0;
-		txvq->bytes = 0;
-		txvq->errors = 0;
-	}
-
-	for (i = 0; i < dev->data->nb_rx_queues; i++) {
-		struct virtqueue *rxvq = dev->data->rx_queues[i];
-		if (rxvq == NULL)
-			continue;
-
-		rxvq->packets = 0;
-		rxvq->bytes = 0;
-		rxvq->errors = 0;
-	}
-
-	dev->data->rx_mbuf_alloc_failed = 0;
-}
-
-static void
-virtio_set_hwaddr(struct virtio_hw *hw)
-{
-	vtpci_write_dev_config(hw,
-			offsetof(struct virtio_net_config, mac),
-			&hw->mac_addr, ETHER_ADDR_LEN);
-}
-
-static void
-virtio_get_hwaddr(struct virtio_hw *hw)
-{
-	if (vtpci_with_feature(hw, VIRTIO_NET_F_MAC)) {
-		vtpci_read_dev_config(hw,
-			offsetof(struct virtio_net_config, mac),
-			&hw->mac_addr, ETHER_ADDR_LEN);
-	} else {
-		eth_random_addr(&hw->mac_addr[0]);
-		virtio_set_hwaddr(hw);
-	}
-}
-
-
-static void
-virtio_negotiate_features(struct virtio_hw *hw)
-{
-	uint32_t host_features, mask;
-
-	mask = VIRTIO_NET_F_CTRL_VLAN;
-	mask |= VIRTIO_NET_F_CSUM | VIRTIO_NET_F_GUEST_CSUM;
-
-	/* TSO and LRO are only available when their corresponding
-	 * checksum offload feature is also negotiated.
-	 */
-	mask |= VIRTIO_NET_F_HOST_TSO4 | VIRTIO_NET_F_HOST_TSO6 | VIRTIO_NET_F_HOST_ECN;
-	mask |= VIRTIO_NET_F_GUEST_TSO4 | VIRTIO_NET_F_GUEST_TSO6 | VIRTIO_NET_F_GUEST_ECN;
-	mask |= VTNET_LRO_FEATURES;
-
-	/* not negotiating INDIRECT descriptor table support */
-	mask |= VIRTIO_RING_F_INDIRECT_DESC;
-
-	/* Prepare guest_features: feature that driver wants to support */
-	hw->guest_features = VTNET_FEATURES & ~mask;
-	PMD_INIT_LOG(DEBUG, "guest_features before negotiate = %x",
-		hw->guest_features);
-
-	/* Read device(host) feature bits */
-	host_features = VIRTIO_READ_REG_4(hw, VIRTIO_PCI_HOST_FEATURES);
-	PMD_INIT_LOG(DEBUG, "host_features before negotiate = %x",
-		host_features);
-
-	/*
-	 * Negotiate features: Subset of device feature bits are written back
-	 * guest feature bits.
-	 */
-	hw->guest_features = vtpci_negotiate_features(hw, host_features);
-	PMD_INIT_LOG(DEBUG, "features after negotiate = %x",
-		hw->guest_features);
-}
-
-#ifdef RTE_EXEC_ENV_LINUXAPP
-static int
-parse_sysfs_value(const char *filename, unsigned long *val)
-{
-	FILE *f;
-	char buf[BUFSIZ];
-	char *end = NULL;
-
-	f = fopen(filename, "r");
-	if (f == NULL) {
-		PMD_INIT_LOG(ERR, "%s(): cannot open sysfs value %s",
-			     __func__, filename);
-		return -1;
-	}
-
-	if (fgets(buf, sizeof(buf), f) == NULL) {
-		PMD_INIT_LOG(ERR, "%s(): cannot read sysfs value %s",
-			     __func__, filename);
-		fclose(f);
-		return -1;
-	}
-	*val = strtoul(buf, &end, 0);
-	if ((buf[0] == '\0') || (end == NULL) || (*end != '\n')) {
-		PMD_INIT_LOG(ERR, "%s(): cannot parse sysfs value %s",
-			     __func__, filename);
-		fclose(f);
-		return -1;
-	}
-	fclose(f);
-	return 0;
-}
-
-static int get_uio_dev(struct rte_pci_addr *loc, char *buf, unsigned int buflen)
-{
-	unsigned int uio_num;
-	struct dirent *e;
-	DIR *dir;
-	char dirname[PATH_MAX];
-
-	/* depending on kernel version, uio can be located in uio/uioX
-	 * or uio:uioX */
-	snprintf(dirname, sizeof(dirname),
-		     SYSFS_PCI_DEVICES "/" PCI_PRI_FMT "/uio",
-		     loc->domain, loc->bus, loc->devid, loc->function);
-	dir = opendir(dirname);
-	if (dir == NULL) {
-		/* retry with the parent directory */
-		snprintf(dirname, sizeof(dirname),
-			     SYSFS_PCI_DEVICES "/" PCI_PRI_FMT,
-			     loc->domain, loc->bus, loc->devid, loc->function);
-		dir = opendir(dirname);
-
-		if (dir == NULL) {
-			PMD_INIT_LOG(ERR, "Cannot opendir %s", dirname);
-			return -1;
-		}
-	}
-
-	/* take the first file starting with "uio" */
-	while ((e = readdir(dir)) != NULL) {
-		/* format could be uio%d ...*/
-		int shortprefix_len = sizeof("uio") - 1;
-		/* ... or uio:uio%d */
-		int longprefix_len = sizeof("uio:uio") - 1;
-		char *endptr;
-
-		if (strncmp(e->d_name, "uio", 3) != 0)
-			continue;
-
-		/* first try uio%d */
-		errno = 0;
-		uio_num = strtoull(e->d_name + shortprefix_len, &endptr, 10);
-		if (errno == 0 && endptr != (e->d_name + shortprefix_len)) {
-			snprintf(buf, buflen, "%s/uio%u", dirname, uio_num);
-			break;
-		}
-
-		/* then try uio:uio%d */
-		errno = 0;
-		uio_num = strtoull(e->d_name + longprefix_len, &endptr, 10);
-		if (errno == 0 && endptr != (e->d_name + longprefix_len)) {
-			snprintf(buf, buflen, "%s/uio:uio%u", dirname,
-				     uio_num);
-			break;
-		}
-	}
-	closedir(dir);
-
-	/* No uio resource found */
-	if (e == NULL) {
-		PMD_INIT_LOG(ERR, "Could not find uio resource");
-		return -1;
-	}
-
-	return 0;
-}
-
-static int
-virtio_has_msix(const struct rte_pci_addr *loc)
-{
-	DIR *d;
-	char dirname[PATH_MAX];
-
-	snprintf(dirname, sizeof(dirname),
-		     SYSFS_PCI_DEVICES "/" PCI_PRI_FMT "/msi_irqs",
-		     loc->domain, loc->bus, loc->devid, loc->function);
-
-	d = opendir(dirname);
-	if (d)
-		closedir(d);
-
-	return (d != NULL);
-}
-#else
-static int
-virtio_has_msix(const struct rte_pci_addr *loc __rte_unused)
-{
-	/* nic_uio does not enable interrupts, return 0 (false). */
-	return 0;
-}
-#endif
-
-/*
- * This function is based on probe() function in virtio_pci.c
- * It returns 0 on success.
- */
-static int
-eth_virtio_dev_init(__rte_unused struct eth_driver *eth_drv,
-		struct rte_eth_dev *eth_dev)
-{
-	struct virtio_net_config *config;
-	struct virtio_net_config local_config;
-	uint32_t offset_conf = sizeof(config->mac);
-	struct rte_pci_device *pci_dev;
-	struct virtio_hw *hw =
-		VIRTIO_DEV_PRIVATE_TO_HW(eth_dev->data->dev_private);
-
-	if (RTE_PKTMBUF_HEADROOM < sizeof(struct virtio_net_hdr)) {
-		PMD_INIT_LOG(ERR,
-			"MBUF HEADROOM should be enough to hold virtio net hdr\n");
-		return -1;
-	}
-
-	eth_dev->dev_ops = &virtio_eth_dev_ops;
-	eth_dev->tx_pkt_burst = &virtio_xmit_pkts;
-
-	if (rte_eal_process_type() == RTE_PROC_SECONDARY)
-		return 0;
-
-	pci_dev = eth_dev->pci_dev;
-
-#ifdef RTE_EXEC_ENV_LINUXAPP
-	{
-		char dirname[PATH_MAX];
-		char filename[PATH_MAX];
-		unsigned long start, size;
-
-		if (get_uio_dev(&pci_dev->addr, dirname, sizeof(dirname)) < 0)
-			return -1;
-
-		/* get portio size */
-		snprintf(filename, sizeof(filename),
-			     "%s/portio/port0/size", dirname);
-		if (parse_sysfs_value(filename, &size) < 0) {
-			PMD_INIT_LOG(ERR, "%s(): cannot parse size",
-				     __func__);
-			return -1;
-		}
-
-		/* get portio start */
-		snprintf(filename, sizeof(filename),
-			     "%s/portio/port0/start", dirname);
-		if (parse_sysfs_value(filename, &start) < 0) {
-			PMD_INIT_LOG(ERR, "%s(): cannot parse portio start",
-				     __func__);
-			return -1;
-		}
-		pci_dev->mem_resource[0].addr = (void *)(uintptr_t)start;
-		pci_dev->mem_resource[0].len =  (uint64_t)size;
-		PMD_INIT_LOG(DEBUG,
-			     "PCI Port IO found start=0x%lx with size=0x%lx",
-			     start, size);
-	}
-#endif
-	hw->use_msix = virtio_has_msix(&pci_dev->addr);
-	hw->io_base = (uint32_t)(uintptr_t)pci_dev->mem_resource[0].addr;
-
-	/* Reset the device although not necessary at startup */
-	vtpci_reset(hw);
-
-	/* Tell the host we've noticed this device. */
-	vtpci_set_status(hw, VIRTIO_CONFIG_STATUS_ACK);
-
-	/* Tell the host we've known how to drive the device. */
-	vtpci_set_status(hw, VIRTIO_CONFIG_STATUS_DRIVER);
-	virtio_negotiate_features(hw);
-
-	/* Setting up rx_header size for the device */
-	if (vtpci_with_feature(hw, VIRTIO_NET_F_MRG_RXBUF)) {
-		eth_dev->rx_pkt_burst = &virtio_recv_mergeable_pkts;
-		hw->vtnet_hdr_size = sizeof(struct virtio_net_hdr_mrg_rxbuf);
-	} else {
-		eth_dev->rx_pkt_burst = &virtio_recv_pkts;
-		hw->vtnet_hdr_size = sizeof(struct virtio_net_hdr);
-	}
-
-	/* Allocate memory for storing MAC addresses */
-	eth_dev->data->mac_addrs = rte_zmalloc("virtio", ETHER_ADDR_LEN, 0);
-	if (eth_dev->data->mac_addrs == NULL) {
-		PMD_INIT_LOG(ERR,
-			"Failed to allocate %d bytes needed to store MAC addresses",
-			ETHER_ADDR_LEN);
-		return -ENOMEM;
-	}
-
-	/* Copy the permanent MAC address to: virtio_hw */
-	virtio_get_hwaddr(hw);
-	ether_addr_copy((struct ether_addr *) hw->mac_addr,
-			&eth_dev->data->mac_addrs[0]);
-	PMD_INIT_LOG(DEBUG,
-		     "PORT MAC: %02X:%02X:%02X:%02X:%02X:%02X",
-		     hw->mac_addr[0], hw->mac_addr[1], hw->mac_addr[2],
-		     hw->mac_addr[3], hw->mac_addr[4], hw->mac_addr[5]);
-
-	if (vtpci_with_feature(hw, VIRTIO_NET_F_CTRL_VQ)) {
-		config = &local_config;
-
-		if (vtpci_with_feature(hw, VIRTIO_NET_F_STATUS)) {
-			offset_conf += sizeof(config->status);
-		} else {
-			PMD_INIT_LOG(DEBUG,
-				     "VIRTIO_NET_F_STATUS is not supported");
-			config->status = 0;
-		}
-
-		if (vtpci_with_feature(hw, VIRTIO_NET_F_MQ)) {
-			offset_conf += sizeof(config->max_virtqueue_pairs);
-		} else {
-			PMD_INIT_LOG(DEBUG,
-				     "VIRTIO_NET_F_MQ is not supported");
-			config->max_virtqueue_pairs = 1;
-		}
-
-		vtpci_read_dev_config(hw, 0, (uint8_t *)config, offset_conf);
-
-		hw->max_rx_queues =
-			(VIRTIO_MAX_RX_QUEUES < config->max_virtqueue_pairs) ?
-			VIRTIO_MAX_RX_QUEUES : config->max_virtqueue_pairs;
-		hw->max_tx_queues =
-			(VIRTIO_MAX_TX_QUEUES < config->max_virtqueue_pairs) ?
-			VIRTIO_MAX_TX_QUEUES : config->max_virtqueue_pairs;
-
-		virtio_dev_cq_queue_setup(eth_dev,
-					config->max_virtqueue_pairs * 2,
-					SOCKET_ID_ANY);
-
-		PMD_INIT_LOG(DEBUG, "config->max_virtqueue_pairs=%d",
-				config->max_virtqueue_pairs);
-		PMD_INIT_LOG(DEBUG, "config->status=%d", config->status);
-		PMD_INIT_LOG(DEBUG,
-				"PORT MAC: %02X:%02X:%02X:%02X:%02X:%02X",
-				config->mac[0], config->mac[1],
-				config->mac[2], config->mac[3],
-				config->mac[4], config->mac[5]);
-	} else {
-		hw->max_rx_queues = 1;
-		hw->max_tx_queues = 1;
-	}
-
-	eth_dev->data->nb_rx_queues = hw->max_rx_queues;
-	eth_dev->data->nb_tx_queues = hw->max_tx_queues;
-
-	PMD_INIT_LOG(DEBUG, "hw->max_rx_queues=%d   hw->max_tx_queues=%d",
-			hw->max_rx_queues, hw->max_tx_queues);
-	PMD_INIT_LOG(DEBUG, "port %d vendorID=0x%x deviceID=0x%x",
-			eth_dev->data->port_id, pci_dev->id.vendor_id,
-			pci_dev->id.device_id);
-	return 0;
-}
-
-static struct eth_driver rte_virtio_pmd = {
-	{
-		.name = "rte_virtio_pmd",
-		.id_table = pci_id_virtio_map,
-		.drv_flags = RTE_PCI_DRV_NEED_MAPPING,
-	},
-	.eth_dev_init = eth_virtio_dev_init,
-	.dev_private_size = sizeof(struct virtio_adapter),
-};
-
-/*
- * Driver initialization routine.
- * Invoked once at EAL init time.
- * Register itself as the [Poll Mode] Driver of PCI virtio devices.
- * Returns 0 on success.
- */
-static int
-rte_virtio_pmd_init(const char *name __rte_unused,
-		    const char *param __rte_unused)
-{
-	if (rte_eal_iopl_init() != 0) {
-		PMD_INIT_LOG(ERR, "IOPL call failed - cannot use virtio PMD");
-		return -1;
-	}
-
-	rte_eth_driver_register(&rte_virtio_pmd);
-	return 0;
-}
-
-/*
- * Only 1 queue is supported, no queue release related operation
- */
-static void
-virtio_dev_rx_queue_release(__rte_unused void *rxq)
-{
-}
-
-static void
-virtio_dev_tx_queue_release(__rte_unused void *txq)
-{
-}
-
-/*
- * Configure virtio device
- * It returns 0 on success.
- */
-static int
-virtio_dev_configure(struct rte_eth_dev *dev)
-{
-	const struct rte_eth_rxmode *rxmode = &dev->data->dev_conf.rxmode;
-
-	PMD_INIT_LOG(DEBUG, "configure");
-
-	if (rxmode->hw_ip_checksum) {
-		PMD_DRV_LOG(ERR, "HW IP checksum not supported");
-		return (-EINVAL);
-	}
-
-	return 0;
-}
-
-
-static int
-virtio_dev_start(struct rte_eth_dev *dev)
-{
-	uint16_t nb_queues, i;
-	uint16_t status;
-	struct virtio_hw *hw =
-		VIRTIO_DEV_PRIVATE_TO_HW(dev->data->dev_private);
-
-	/* Tell the host we've noticed this device. */
-	vtpci_set_status(hw, VIRTIO_CONFIG_STATUS_ACK);
-
-	/* Tell the host we've known how to drive the device. */
-	vtpci_set_status(hw, VIRTIO_CONFIG_STATUS_DRIVER);
-
-	virtio_dev_cq_start(dev);
-
-	/* Do final configuration before rx/tx engine starts */
-	virtio_dev_rxtx_start(dev);
-
-	/* Check VIRTIO_NET_F_STATUS for link status*/
-	if (vtpci_with_feature(hw, VIRTIO_NET_F_STATUS)) {
-		vtpci_read_dev_config(hw,
-				offsetof(struct virtio_net_config, status),
-				&status, sizeof(status));
-		if ((status & VIRTIO_NET_S_LINK_UP) == 0) {
-			PMD_INIT_LOG(ERR, "Port: %d Link is DOWN",
-				     dev->data->port_id);
-			return -EIO;
-		} else {
-			PMD_INIT_LOG(DEBUG, "Port: %d Link is UP",
-				     dev->data->port_id);
-		}
-	}
-	vtpci_reinit_complete(hw);
-
-	/*Notify the backend
-	 *Otherwise the tap backend might already stop its queue due to fullness.
-	 *vhost backend will have no chance to be waked up
-	 */
-	nb_queues = dev->data->nb_rx_queues;
-	if (nb_queues > 1) {
-		if (virtio_set_multiple_queues(dev, nb_queues) != 0)
-			return -EINVAL;
-	}
-
-	PMD_INIT_LOG(DEBUG, "nb_queues=%d", nb_queues);
-
-	for (i = 0; i < nb_queues; i++)
-		virtqueue_notify(dev->data->rx_queues[i]);
-
-	PMD_INIT_LOG(DEBUG, "Notified backend at initialization");
-
-	for (i = 0; i < dev->data->nb_rx_queues; i++)
-		VIRTQUEUE_DUMP((struct virtqueue *)dev->data->rx_queues[i]);
-
-	for (i = 0; i < dev->data->nb_tx_queues; i++)
-		VIRTQUEUE_DUMP((struct virtqueue *)dev->data->tx_queues[i]);
-
-	return 0;
-}
-
-static void virtio_dev_free_mbufs(struct rte_eth_dev *dev)
-{
-	struct rte_mbuf *buf;
-	int i, mbuf_num = 0;
-
-	for (i = 0; i < dev->data->nb_rx_queues; i++) {
-		PMD_INIT_LOG(DEBUG,
-			     "Before freeing rxq[%d] used and unused buf", i);
-		VIRTQUEUE_DUMP((struct virtqueue *)dev->data->rx_queues[i]);
-
-		while ((buf = (struct rte_mbuf *)virtqueue_detatch_unused(
-					dev->data->rx_queues[i])) != NULL) {
-			rte_pktmbuf_free(buf);
-			mbuf_num++;
-		}
-
-		PMD_INIT_LOG(DEBUG, "free %d mbufs", mbuf_num);
-		PMD_INIT_LOG(DEBUG,
-			     "After freeing rxq[%d] used and unused buf", i);
-		VIRTQUEUE_DUMP((struct virtqueue *)dev->data->rx_queues[i]);
-	}
-
-	for (i = 0; i < dev->data->nb_tx_queues; i++) {
-		PMD_INIT_LOG(DEBUG,
-			     "Before freeing txq[%d] used and unused bufs",
-			     i);
-		VIRTQUEUE_DUMP((struct virtqueue *)dev->data->tx_queues[i]);
-
-		mbuf_num = 0;
-		while ((buf = (struct rte_mbuf *)virtqueue_detatch_unused(
-					dev->data->tx_queues[i])) != NULL) {
-			rte_pktmbuf_free(buf);
-
-			mbuf_num++;
-		}
-
-		PMD_INIT_LOG(DEBUG, "free %d mbufs", mbuf_num);
-		PMD_INIT_LOG(DEBUG,
-			     "After freeing txq[%d] used and unused buf", i);
-		VIRTQUEUE_DUMP((struct virtqueue *)dev->data->tx_queues[i]);
-	}
-}
-
-/*
- * Stop device: disable rx and tx functions to allow for reconfiguring.
- */
-static void
-virtio_dev_stop(struct rte_eth_dev *dev)
-{
-	struct virtio_hw *hw =
-		VIRTIO_DEV_PRIVATE_TO_HW(dev->data->dev_private);
-
-	/* reset the NIC */
-	vtpci_reset(hw);
-	virtio_dev_free_mbufs(dev);
-}
-
-static int
-virtio_dev_link_update(struct rte_eth_dev *dev, __rte_unused int wait_to_complete)
-{
-	struct rte_eth_link link, old;
-	uint16_t status;
-	struct virtio_hw *hw =
-		VIRTIO_DEV_PRIVATE_TO_HW(dev->data->dev_private);
-	memset(&link, 0, sizeof(link));
-	virtio_dev_atomic_read_link_status(dev, &link);
-	old = link;
-	link.link_duplex = FULL_DUPLEX;
-	link.link_speed  = SPEED_10G;
-	if (vtpci_with_feature(hw, VIRTIO_NET_F_STATUS)) {
-		PMD_INIT_LOG(DEBUG, "Get link status from hw");
-		vtpci_read_dev_config(hw,
-				offsetof(struct virtio_net_config, status),
-				&status, sizeof(status));
-		if ((status & VIRTIO_NET_S_LINK_UP) == 0) {
-			link.link_status = 0;
-			PMD_INIT_LOG(DEBUG, "Port %d is down",
-				     dev->data->port_id);
-		} else {
-			link.link_status = 1;
-			PMD_INIT_LOG(DEBUG, "Port %d is up",
-				     dev->data->port_id);
-		}
-	} else {
-		link.link_status = 1;   /* Link up */
-	}
-	virtio_dev_atomic_write_link_status(dev, &link);
-	if (old.link_status == link.link_status)
-		return -1;
-	/*changed*/
-	return 0;
-}
-
-static void
-virtio_dev_info_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
-{
-	struct virtio_hw *hw = VIRTIO_DEV_PRIVATE_TO_HW(dev->data->dev_private);
-
-	dev_info->driver_name = dev->driver->pci_drv.name;
-	dev_info->max_rx_queues = (uint16_t)hw->max_rx_queues;
-	dev_info->max_tx_queues = (uint16_t)hw->max_tx_queues;
-	dev_info->min_rx_bufsize = VIRTIO_MIN_RX_BUFSIZE;
-	dev_info->max_rx_pktlen = VIRTIO_MAX_RX_PKTLEN;
-	dev_info->max_mac_addrs = VIRTIO_MAX_MAC_ADDRS;
-}
-
-/*
- * It enables testpmd to collect per queue stats.
- */
-static int
-virtio_dev_queue_stats_mapping_set(__rte_unused struct rte_eth_dev *eth_dev,
-__rte_unused uint16_t queue_id, __rte_unused uint8_t stat_idx,
-__rte_unused uint8_t is_rx)
-{
-	return 0;
-}
-
-static struct rte_driver rte_virtio_driver = {
-	.type = PMD_PDEV,
-	.init = rte_virtio_pmd_init,
-};
-
-PMD_REGISTER_DRIVER(rte_virtio_driver);