[dpdk-dev,RFC,19/24] net/vhost: add virtio-vhost-user support
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Commit Message
The new virtio-transport=0|1 argument enables virtio-vhost-user support:
testpmd ... --pci-whitelist 0000:00:04.0 \
--vdev vhost,iface=0000:00:04.0,virtio-transport=1
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
---
drivers/net/vhost/rte_eth_vhost.c | 13 +++++++++++++
1 file changed, 13 insertions(+)
@@ -53,6 +53,7 @@ enum {VIRTIO_RXQ, VIRTIO_TXQ, VIRTIO_QNUM};
#define ETH_VHOST_CLIENT_ARG "client"
#define ETH_VHOST_DEQUEUE_ZERO_COPY "dequeue-zero-copy"
#define ETH_VHOST_IOMMU_SUPPORT "iommu-support"
+#define ETH_VHOST_VIRTIO_TRANSPORT "virtio-transport"
#define VHOST_MAX_PKT_BURST 32
static const char *valid_arguments[] = {
@@ -61,6 +62,7 @@ static const char *valid_arguments[] = {
ETH_VHOST_CLIENT_ARG,
ETH_VHOST_DEQUEUE_ZERO_COPY,
ETH_VHOST_IOMMU_SUPPORT,
+ ETH_VHOST_VIRTIO_TRANSPORT,
NULL
};
@@ -1167,6 +1169,7 @@ rte_pmd_vhost_probe(struct rte_vdev_device *dev)
int client_mode = 0;
int dequeue_zero_copy = 0;
int iommu_support = 0;
+ uint16_t virtio_transport = 0;
RTE_LOG(INFO, PMD, "Initializing pmd_vhost for %s\n",
rte_vdev_device_name(dev));
@@ -1224,6 +1227,16 @@ rte_pmd_vhost_probe(struct rte_vdev_device *dev)
flags |= RTE_VHOST_USER_IOMMU_SUPPORT;
}
+ if (rte_kvargs_count(kvlist, ETH_VHOST_VIRTIO_TRANSPORT) == 1) {
+ ret = rte_kvargs_process(kvlist, ETH_VHOST_VIRTIO_TRANSPORT,
+ &open_int, &virtio_transport);
+ if (ret < 0)
+ goto out_free;
+
+ if (virtio_transport)
+ flags |= RTE_VHOST_USER_VIRTIO_TRANSPORT;
+ }
+
if (dev->device.numa_node == SOCKET_ID_ANY)
dev->device.numa_node = rte_socket_id();