Re: [PATCH net-next V2 0/2] XDP transmission for tuntap

[Jason Wang]

On 2018年01月10日 00:06, David Miller wrote:

From: Jason Wang 
Date: Thu,  4 Jan 2018 11:14:26 +0800


This series tries to implement XDP transmission (ndo_xdp_xmit) for
tuntap. Pointer ring was used for queuing both XDP buffers and
sk_buff, this is done by encoding the type into lowest bit of the
pointer and storin XDP metadata in the headroom of XDP buff.

Tests gets 3.05 Mpps when doing xdp_redirect_map from ixgbe to VM
(testpmd + virtio-net in guest). This gives us ~20% improvments
compared to use skb during redirect.

Please review.

Changes from V1:

- slient warnings
- fix typos
- add skb mode number in the commit log

Series applied, thanks Jason.

There was some overlap with recent changes from Jesper, please take
a look.

Thank you.


The changes looks good, will have a test and report.

Thanks

Re: [PATCH net-next V2 0/2] XDP transmission for tuntap

[David Miller]

From: Jason Wang 
Date: Thu,  4 Jan 2018 11:14:26 +0800

> This series tries to implement XDP transmission (ndo_xdp_xmit) for
> tuntap. Pointer ring was used for queuing both XDP buffers and
> sk_buff, this is done by encoding the type into lowest bit of the
> pointer and storin XDP metadata in the headroom of XDP buff.
> 
> Tests gets 3.05 Mpps when doing xdp_redirect_map from ixgbe to VM
> (testpmd + virtio-net in guest). This gives us ~20% improvments
> compared to use skb during redirect.
> 
> Please review.
> 
> Changes from V1:
> 
> - slient warnings
> - fix typos
> - add skb mode number in the commit log

Series applied, thanks Jason.

There was some overlap with recent changes from Jesper, please take
a look.

Thank you.