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 <[email protected]> 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 <[email protected]>
> 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 <[email protected]>
> Signed-off-by: David S. Miller <[email protected]>
>
>
> 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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