[dpdk-dev] [PATCH 4/6] doc: document the devargs for virtio-user
Tiwei Bie
tiwei.bie at intel.com
Tue Aug 13 04:07:28 CEST 2019
Document the devargs for virtio-user and also make it clear
that these devargs are only available in virtio-user, i.e. not
supported by the PCI virtio driver.
Signed-off-by: Tiwei Bie <tiwei.bie at intel.com>
---
doc/guides/nics/virtio.rst | 38 +++++++++++++++++++++++++++++++++++---
1 file changed, 35 insertions(+), 3 deletions(-)
diff --git a/doc/guides/nics/virtio.rst b/doc/guides/nics/virtio.rst
index b3c356856..993e691f5 100644
--- a/doc/guides/nics/virtio.rst
+++ b/doc/guides/nics/virtio.rst
@@ -322,7 +322,7 @@ Here we use l3fwd-power as an example to show how to get started.
Virtio PMD arguments
--------------------
-The user can specify below argument in devargs.
+Below devargs are supported by the PCI virtio driver:
#. ``vdpa``:
@@ -331,12 +331,44 @@ The user can specify below argument in devargs.
a virtio device needs to work in vDPA mode.
(Default: 0 (disabled))
-#. ``mrg_rxbuf``:
+Below devargs are supported by the virtio-user vdev:
+
+#. ``path``:
+
+ It is used to specify a path to connect to vhost backend.
+
+#. ``mac``:
+
+ It is used to specify the MAC address.
+
+#. ``cq``:
+
+ It is used to enable the control queue. (Default: 0 (disabled))
+
+#. ``queue_size``:
+
+ It is used to specify the queue size. (Default: 256)
+
+#. ``queues``:
+
+ It is used to specify the queue number. (Default: 1)
+
+#. ``iface``:
+
+ It is used to specify the host interface name for vhost-kernel
+ backend.
+
+#. ``server``:
+
+ It is used to enable the server mode when using vhost-user backend.
+ (Default: 0 (disabled))
+
+#. ``mrg_rxbuf``:
It is used to enable virtio device mergeable Rx buffer feature.
(Default: 1 (enabled))
-#. ``in_order``:
+#. ``in_order``:
It is used to enable virtio device in-order feature.
(Default: 1 (enabled))
--
2.17.1
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