net/vhost: remove dequeue zero-copy support

The dequeue zero-copy feature from the Vhost library is
being removed in this release, this patch remove its support
in the Vhost PMD.

Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Reviewed-by: Chenbo Xia <chenbo.xia@intel.com>

diff --git a/drivers/net/vhost/rte_eth_vhost.c b/drivers/net/vhost/rte_eth_vhost.c
index 32ad27f..66efecb 100644 (file)
--- a/drivers/net/vhost/rte_eth_vhost.c
+++ b/drivers/net/vhost/rte_eth_vhost.c
@@ -29,7 +29,6 @@ enum {VIRTIO_RXQ, VIRTIO_TXQ, VIRTIO_QNUM};
 #define ETH_VHOST_IFACE_ARG            "iface"
 #define ETH_VHOST_QUEUES_ARG           "queues"
 #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_POSTCOPY_SUPPORT     "postcopy-support"
 #define ETH_VHOST_VIRTIO_NET_F_HOST_TSO "tso"
@@ -41,7 +40,6 @@ static const char *valid_arguments[] = {
        ETH_VHOST_IFACE_ARG,
        ETH_VHOST_QUEUES_ARG,
        ETH_VHOST_CLIENT_ARG,
-       ETH_VHOST_DEQUEUE_ZERO_COPY,
        ETH_VHOST_IOMMU_SUPPORT,
        ETH_VHOST_POSTCOPY_SUPPORT,
        ETH_VHOST_VIRTIO_NET_F_HOST_TSO,
@@ -1506,7 +1504,6 @@ rte_pmd_vhost_probe(struct rte_vdev_device *dev)
        uint64_t flags = 0;
        uint64_t disable_flags = 0;
        int client_mode = 0;
-       int dequeue_zero_copy = 0;
        int iommu_support = 0;
        int postcopy_support = 0;
        int tso = 0;
@@ -1566,16 +1563,6 @@ rte_pmd_vhost_probe(struct rte_vdev_device *dev)
                        flags |= RTE_VHOST_USER_CLIENT;
        }
 
-       if (rte_kvargs_count(kvlist, ETH_VHOST_DEQUEUE_ZERO_COPY) == 1) {
-               ret = rte_kvargs_process(kvlist, ETH_VHOST_DEQUEUE_ZERO_COPY,
-                                        &open_int, &dequeue_zero_copy);
-               if (ret < 0)
-                       goto out_free;
-
-               if (dequeue_zero_copy)
-                       flags |= RTE_VHOST_USER_DEQUEUE_ZERO_COPY;
-       }
-
        if (rte_kvargs_count(kvlist, ETH_VHOST_IOMMU_SUPPORT) == 1) {
                ret = rte_kvargs_process(kvlist, ETH_VHOST_IOMMU_SUPPORT,
                                         &open_int, &iommu_support);
@@ -1675,7 +1662,6 @@ RTE_PMD_REGISTER_PARAM_STRING(net_vhost,
        "iface=<ifc> "
        "queues=<int> "
        "client=<0|1> "
-       "dequeue-zero-copy=<0|1> "
        "iommu-support=<0|1> "
        "postcopy-support=<0|1> "
        "tso=<0|1> "