[dpdk-dev] [PATCH] net/virtio-user: fix multiqueue support with vhost kernel

Maxime Coquelin maxime.coquelin at redhat.com
Wed Mar 20 08:35:37 CET 2019

On 3/12/19 8:13 AM, Tiwei Bie wrote:
> The multiqueue support in virtio-user with vhost kernel backend
> is broken when tap name isn't specified by users explicitly,
> because the tap name returned by ioctl(TUNSETIFF) isn't saved
> properly, and multiple tap interfaces will be created in this
> case. Fix this by saving the dynamically allocated tap name
> first before reusing the ifr structure. Besides, also make it
> possible to support the format string in tap name (e.g. foo%d)
> specified by users explicitly.
> Fixes: 791b43e08842 ("net/virtio-user: specify MAC of the tap")
> Cc: stable at dpdk.org
> Reported-by: Stephen Hemminger <stephen at networkplumber.org>
> Signed-off-by: Tiwei Bie <tiwei.bie at intel.com>
> ---
>   drivers/net/virtio/virtio_user/vhost_kernel_tap.c | 12 ++++++++++--
>   1 file changed, 10 insertions(+), 2 deletions(-)

Applied to dpdk-next-virtio/master branch.


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