On 11/25/13 at 03:40pm, Jesse Gross wrote:
> On Fri, Nov 22, 2013 at 8:56 AM, Thomas Graf <tg...@suug.ch> wrote:
> > diff --git a/include/uapi/linux/openvswitch.h
> > b/include/uapi/linux/openvswitch.h
> > index 07ef2c3..a6863e2 100644
> > --- a/include/uapi/linux/openvswitch.h
> > +++ b/include/uapi/linux/openvswitch.h
> > @@ -40,7 +40,15 @@ struct ovs_header {
> >
> > #define OVS_DATAPATH_FAMILY "ovs_datapath"
> > #define OVS_DATAPATH_MCGROUP "ovs_datapath"
> > -#define OVS_DATAPATH_VERSION 0x1
> > +
> > +/* V2:
> > + * - API users are expected to provide OVS_DP_ATTR_USER_FEATURES
> > + * with NLM_F_REPLACE when creating the datapath.
> > + */
> > +#define OVS_DATAPATH_VERSION 2
>
> I'm not sure that I understand this comment - I guess it means that
> there's no legacy path when using NLM_F_REPLACE?
It means that if the V2 caller does not provide user features the
existing user features are preserved upon NLM_F_REPLACE. V1 users
can't be aware and the user features are always reset.
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