Re: [PATCH 0/2] vhost: Add support to indirect descriptors on Rx path

[Yuanhan Liu <yuanhan.liu@linux.intel.com>]

On Tue, Oct 18, 2016 at 05:35:37PM +0200, Maxime Coquelin wrote:
> Indirect descriptor feature has been enabled in v16.11-rc1, but only TX path
> was implemented.
> However, some configurations expect it is supported for the Rx path:
>  - Windows guests with and without mergeable buffers enabled
>  - Linux guests with Kernel drivr with mergeable buffers disabled
> 
> This series add the support of indirect descs for the Rx path, and has been
> tested with following configurations:
>  - Windows guest with indirect ON, mergeeable ON/OFF
>  - Linux guest with Kernel driver with indirect ON/OFF, mergeable ON/OFF
>  - Linux guest with Virtio PMD with mergeable ON/OFF
> 
> The performance degradation measured with/without this series with Virtio PMD
> is around 1% (which doesn't use indirect descs for the Rx path).
> 
> The series is based on top of "vhost: optimize mergeable Rx path" v7.

Series applied to dpdk-next-virtio.

Thanks.

	--yliu
> 
> Maxime Coquelin (2):
>   vhost: Add indirect desc support to Rx mergeable path
>   vhost: Add indirect desc support to the Rx no-mergeable path
> 
>  lib/librte_vhost/virtio_net.c | 73 ++++++++++++++++++++++++++++++-------------
>  1 file changed, 51 insertions(+), 22 deletions(-)
> 
> -- 
> 2.7.4