From: Kevin Traynor <ktraynor@redhat.com>
To: Marvin Liu <yong.liu@intel.com>, stable@dpdk.org
Subject: Re: [dpdk-stable] [PATCH 18.11] net/virtio: fix mbuf data and packet length mismatch
Date: Wed, 18 Mar 2020 23:01:29 +0000 [thread overview]
Message-ID: <24173741-fde1-2375-f5cb-b4f46dba5b6b@redhat.com> (raw)
In-Reply-To: <20200316123556.33594-1-yong.liu@intel.com>
On 16/03/2020 12:35, Marvin Liu wrote:
> [ upstream commit 1ae55ad38e5e00b61704e4cb29037098b143688a ]
>
> If reserve virtio header room by function rte_pktmbuf_prepend, both
> segment data length and packet length of mbuf will be increased.
> Data length will be equal to descriptor length, while packet length
> should be decreased as virtio-net header won't be taken into packet.
> Thus will cause mismatch in mbuf structure. Fix this issue by calculate
> mbuf data address directly.
>
> Fixes: 58169a9c8153 ("net/virtio: support Tx checksum offload")
> Fixes: 892dc798fa9c ("net/virtio: implement Tx path for packed queues")
> Fixes: e5f456a98d3c ("net/virtio: support in-order Rx and Tx")
>
> Reported-by: Stephen Hemminger <stephen@networkplumber.org>
> Signed-off-by: Marvin Liu <yong.liu@intel.com>
> Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Applied, thanks.
prev parent reply other threads:[~2020-03-18 23:01 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-16 12:35 Marvin Liu
2020-03-18 23:01 ` Kevin Traynor [this message]
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