[dpdk-dev] [PATCH v3] net/virtio: fix Rx scatter offload

[Maxime Coquelin]

On 7/20/21 9:54 AM, Andrew Rybchenko wrote:
> From: Ivan Ilchenko <ivan.ilchenko at oktetlabs.ru>
> 
> Report Rx scatter offload capability depending on VIRTIO_NET_F_MRG_RXBUF.
> 
> If Rx scatter is not requested, ensure that provided Rx buffers on
> each Rx queue are big enough to fit Rx packets up to configured MTU.
> 
> Fixes: ce17eddefc20 ("ethdev: introduce Rx queue offloads API")
> Cc: stable at dpdk.org
> 
> Signed-off-by: Ivan Ilchenko <ivan.ilchenko at oktetlabs.ru>
> Signed-off-by: Andrew Rybchenko <andrew.rybchenko at oktetlabs.ru>
> Reviewed-by: Maxime Coquelin <maxime.coquelin at redhat.com>
> ---
> v3:
>  - fix segfault on MTU set if an Rx queue is not setup
> 
> v2:
>  - do not overwrite Rx offloads when Rx scatter is added
> 
>  drivers/net/virtio/virtio.h        |  2 +
>  drivers/net/virtio/virtio_ethdev.c | 65 ++++++++++++++++++++++++++++++
>  drivers/net/virtio/virtio_ethdev.h |  5 +++
>  drivers/net/virtio/virtio_rxtx.c   | 10 +++++
>  4 files changed, 82 insertions(+)
> 

Thanks for the fix.
I see my R-by is already there, but I confirm this is good to me.

Maxime