From: Maxime Coquelin <maxime.coquelin@redhat.com>
Date: Mon, 28 Sep 2020 09:17:09 +0000 (+0200)
Subject: net/vhost: remove dequeue zero-copy support
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=fde9f1f6df9ab6a39977328fb0497b448b537916;p=dpdk.git

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 32ad27fe4e..66efecb320 100644
--- 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> "