Re: [PATCH] xen-netback: use default TX queue size for vifs

From: Wei Liu
Date: Fri Oct 06 2023 - 17:44:30 EST


On Thu, Oct 05, 2023 at 04:08:31PM +0200, Roger Pau Monne wrote:
> Do not set netback interfaces (vifs) default TX queue size to the ring size.
> The TX queue size is not related to the ring size, and using the ring size (32)
> as the queue size can lead to packet drops. Note the TX side of the vif
> interface in the netback domain is the one receiving packets to be injected
> to the guest.
>
> Do not explicitly set the TX queue length to any value when creating the
> interface, and instead use the system default. Note that the queue length can
> also be adjusted at runtime.
>
> Fixes: f942dc2552b8 ('xen network backend driver')
> Signed-off-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>

Acked-by: Wei Liu <wei.liu@xxxxxxxxxx>