[ovs-dev] Re: Re: Re: [PATCH v4 0/3] Add support for TSO with DPDK

贺鹏 xnhp0320 at gmail.com
Tue Jun 2 14:37:59 UTC 2020


yes,check dpdk gso lib……

在 2020年3月10日星期二,txfh2007 via dev <ovs-dev at openvswitch.org> 写道:

> Hi Flavio and all:
>
>      Is there a way to support software TSO for DPDK tunnel network ? I
> have tried userspace TSO function, and running on tunnel network, I have
> got the following error:
>      "Tunneling packets with HW offload flags is not supported: packet
> dropped"
>      So is there a way to work around if we would support both vlan and
> tunnel network on the same compute node ?
>
> Thanks
> Timo
>
>
>
> ------------------------------------------------------------------
>
>
>
>
> On Fri, Feb 28, 2020 at 9:56 AM Flavio Leitner <fbl at sysclose.org> wrote:
> >
> >
> > Hi Yi Yang,
> >
> > This is the bug fix required to make veth TSO work in OvS:
> > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/
> linux.git/commit/?id=9d2f67e43b73e8af7438be219b66a5de0cfa8bd9
> >
> > commit 9d2f67e43b73e8af7438be219b66a5de0cfa8bd9
> > Author: Jianfeng Tan <jianfeng.tan at linux.alibaba.com>
> > Date:   Sat Sep 29 15:41:27 2018 +0000
> >
> >     net/packet: fix packet drop as of virtio gso
> >
> >     When we use raw socket as the vhost backend, a packet from virito
> with
> >     gso offloading information, cannot be sent out in later validaton at
> >     xmit path, as we did not set correct skb->protocol which is further
> used
> >     for looking up the gso function.
> >
> >     To fix this, we set this field according to virito hdr information.
> >
> >     Fixes: e858fae2b0b8f4 ("virtio_net: use common code for
> virtio_net_hdr and skb GSO conversion")
> >     Signed-off-by: Jianfeng Tan <jianfeng.tan at linux.alibaba.com>
> >     Signed-off-by: David S. Miller <davem at davemloft.net>
> >
> >
> > So, the minimum kernel version is 4.19.
> >
> Thanks,
> I sent a patch to update the documentation. Please take a look.
> William
>
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>


-- 
hepeng


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