On Wed, Dec 23, 2020 at 9:25 PM wangyunjian <wangyunjian@xxxxxxxxxx> wrote:
>
> From: Yunjian Wang <wangyunjian@xxxxxxxxxx>
>
> Currently the driver doesn't drop a packet which can't be sent by tun
> (e.g bad packet). In this case, the driver will always process the
> same packet lead to the tx queue stuck.
>
> To fix this issue:
> 1. in the case of persistent failure (e.g bad packet), the driver
> can skip this descriptor by ignoring the error.
> 2. in the case of transient failure (e.g -EAGAIN and -ENOMEM), the
> driver schedules the worker to try again.
>
> Fixes: 3a4d5c94e959 ("vhost_net: a kernel-level virtio server")
> Signed-off-by: Yunjian Wang <wangyunjian@xxxxxxxxxx>
Acked-by: Willem de Bruijn <willemb@xxxxxxxxxx>
Thanks.
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