Re: [PATCH] public/io/netif.h: change semantics of "request-multicast-control" flag

[Wei Liu <wei.liu2@citrix.com>]

On Thu, Jan 21, 2016 at 03:29:36PM +0000, Ian Campbell wrote:
> On Wed, 2016-01-20 at 12:50 +0000, Paul Durrant wrote:
> > My patch b2700877 "move and amend multicast control documentation"
> > clarified use of the multicast control protocol between frontend and
> > backend. However, it transpires that the restrictions that documentation
> > placed on the "request-multicast-control" flag make it hard for a
> > frontend to enable 'all multicast' promiscuous mode, in that to do so
> > would require the frontend and backend to disconnect and re-connect.
> > 
> > This patch adds a new "feature-dynamic-multicast-control" flag to allow
> > a backend to advertise that it will watch "request-multicast-control" hence
> > allowing it to be meaningfully modified by the frontend at any time rather
> > than only when the frontend and backend are disconnected.
> > 
> > Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
> > Cc: Ian Campbell <ian.campbell@citrix.com>
> > Cc: Ian Jackson <ian.jackson@eu.citrix.com>
> > Cc: Jan Beulich <jbeulich@suse.com>
> > Cc: Keir Fraser <keir@xen.org>
> > Cc: Tim Deegan <tim@xen.org>
> 
> 
> This looks good to me, but also adding Wei (Linux netback + BSD stuff) and
> Roger (BSD stuff) for their perspective.
> 
> I should probably have done that for the last set of netif.h changes too,
> since apart from the nominal maintainers of xen/include/public/io/*.h it's
> worth getting input from the maintainers of the consumers. Not sure we can
> express that very well in MAINTAINERS :-(.
> 
> Ian.

LGTM

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