[PATCH] vhost: support sync copy when data buffer is small

[Maxime Coquelin]

Hi Wenwu,

On 4/11/22 15:38, Wenwu Ma wrote:
> In async datapath, if the length of data buffer
> is less than 256, the data will be copied by CPU
> instead of DMA.
> 
> Signed-off-by: Wenwu Ma <wenwux.ma at intel.com>
> ---
>   lib/vhost/vhost.h      |  6 ++-
>   lib/vhost/virtio_net.c | 96 ++++++++++++++++++++++++++++++------------
>   2 files changed, 73 insertions(+), 29 deletions(-)
> 

As I mentioned in the past, let's have a DMA-only solution working
before trying to support CPU copy for small packets.

Thanks,
Maxime