Michael S. Tsirkin
2021-Jan-19 09:56 UTC
[PATCH net-next v7] vhost_net: avoid tx queue stuck when sendmsg fails
On Mon, Jan 18, 2021 at 02:33:29PM -0800, Jakub Kicinski wrote:> On Fri, 15 Jan 2021 12:46:20 +0800 wangyunjian wrote: > > From: Yunjian Wang <wangyunjian at huawei.com> > > > > 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 -ENOBUFS, -EAGAIN and -ENOMEM), > > the driver schedules the worker to try again. > > > > Signed-off-by: Yunjian Wang <wangyunjian at huawei.com> > > Michael, LMK if you want to have a closer look otherwise I'll apply > tomorrow.Thanks for the reminder. Acked. -- MST