From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Subject: Re: [PATCH net] virtio-net: add missing virtqueue kick when
 flushing packets
Date: Fri, 13 Apr 2018 11:27:12 -0400 (EDT)
Message-ID: <20180413.112712.74483562688980325.davem@davemloft.net>
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        ktaka@nii.ac.jp, daniel@iogearbox.net
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From: Jason Wang <jasowang@redhat.com>
Date: Fri, 13 Apr 2018 14:58:25 +0800

> We tends to batch submitting packets during XDP_TX. This requires to
> kick virtqueue after a batch, we tried to do it through
> xdp_do_flush_map() which only makes sense for devmap not XDP_TX. So
> explicitly kick the virtqueue in this case.
> 
> Reported-by: Kimitoshi Takahashi <ktaka@nii.ac.jp>
> Tested-by: Kimitoshi Takahashi <ktaka@nii.ac.jp>
> Cc: Daniel Borkmann <daniel@iogearbox.net>
> Fixes: 186b3c998c50 ("virtio-net: support XDP_REDIRECT")
> Signed-off-by: Jason Wang <jasowang@redhat.com>

Applied and queued up for -stable, thanks Jason.