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

[Maxime Coquelin <maxime.coquelin@redhat.com>]

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@dpdk.org
> 
> Reported-by: Stephen Hemminger <stephen@networkplumber.org>
> Signed-off-by: Tiwei Bie <tiwei.bie@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.

Thanks,
Maxime