Re: [Xen-devel] [PATCH v5 1/2] public/io/netif.h: add gref mapping control messages

[Wei Liu <wei.liu2@xxxxxxxxxx>]

On Tue, Oct 03, 2017 at 06:46:08PM +0100, Joao Martins wrote:
> Adds 3 messages to allow guest to let backend keep grants mapped,
> such that 1) guests allowing fast recycling of pages can avoid doing
> grant ops for those cases, or otherwise 2) preferring copies over
> grants and 3) always using a fixed set of pages for network I/O.
> 
> The three control ring messages added are:
>  - Add grefs to be mapped by backend
>  - Remove grefs mappings (If they are not in use)
>  - Get maximum amount of grefs kept mapped.
> 
> Signed-off-by: Joao Martins <joao.m.martins@xxxxxxxxxx>
> Reviewed-by: Paul Durrant <paul.durrant@xxxxxxxxxx>
> Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>

Acked-by: Wei Liu <wei.liu2@xxxxxxxxxx>

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