[v3] doc: add note for builtin-net-driver option
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Commit Message
Very simple version of vhost-user driver in vhost sample will be used if
builtin-net-driver option is enabled. This driver is based on generic
vhost lib APIs. Unfortunately, the implementation is incompatible with
QEMU as protocol feature is not supported.
Signed-off-by: Marvin Liu <yong.liu@intel.com>
Comments
> -----Original Message-----
> From: Liu, Yong
> Sent: Tuesday, July 31, 2018 5:01 PM
> To: Mcnamara, John <john.mcnamara@intel.com>; Bie, Tiwei
> <tiwei.bie@intel.com>; dev@dpdk.org
> Cc: Liu, Yong <yong.liu@intel.com>
> Subject: [PATCH v3] doc: add note for builtin-net-driver option
>
> Very simple version of vhost-user driver in vhost sample will be used if
> builtin-net-driver option is enabled. This driver is based on generic vhost
> lib APIs. Unfortunately, the implementation is incompatible with QEMU as
> protocol feature is not supported.
>
> Signed-off-by: Marvin Liu <yong.liu@intel.com>
Acked-by: John McNamara <john.mcnamara@intel.com>
> > Very simple version of vhost-user driver in vhost sample will be used if
> > builtin-net-driver option is enabled. This driver is based on generic vhost
> > lib APIs. Unfortunately, the implementation is incompatible with QEMU as
> > protocol feature is not supported.
> >
> > Signed-off-by: Marvin Liu <yong.liu@intel.com>
>
> Acked-by: John McNamara <john.mcnamara@intel.com>
Applied, thanks
@@ -158,6 +158,10 @@ when disabling VLAN strip. Such feature, which heavily depends on hardware,
should be removed from this example to reduce confusion. Now, VLAN strip is
enabled and cannot be disabled.
+**--builtin-net-driver**
+A very simple vhost-user net driver which demonstrates how to use the generic
+vhost APIs will be used when this option is given. It is disabled by default.
+
Common Issues
-------------
@@ -192,3 +196,8 @@ Common Issues
according to the NIC's property. ::
make EXTRA_CFLAGS="-DMAX_QUEUES=320"
+
+* Option "builtin-net-driver" is incompatible with QEMU
+
+ QEMU vhost net device start will fail if protocol feature is not negotiated.
+ DPDK virtio-user pmd can be the replacement of QEMU.