***SPAM*** Re: ***SPAM*** Re: [ofa-general] EWG (OFED) meeting minutes for Mar 12 09

[Bart Van Assche]

On Sun, Mar 15, 2009 at 9:42 PM, Roland Dreier <rdreier at cisco.com> wrote:
>  > As far as I know SDP is currently implemented in OFED as a separate
>  > address family (AF_INET_SDP). This is an unfortunate approach because:
>  > * This approach will never be accepted upstream by the Linux kernel maintainers.
>
>  > One possible approach is to extend the BSD socket API with support for
>  > multiple IP stack implementations. This can be implemented by e.g.
>  > adding a system call msocket() that has four parameters -- the three
>  > classic socket() parameters and a fourth parameter for the IP stack.
>
> I'm not sure why you make this assertion... a new protocol family for
> SOCK_STREAM sockets seems far more likely to be accepted upstream than
> adding support for multiple networking stacks.  For example RDS was
> recently queued for 2.6.30 as a new protocol family.  I have a hard time
> imagining multiple IP stacks being accepted upstream on the other hand.

I would like to clarify that I do not know the opinion of the network
subsystem maintainers about msocket(), but that I posted this
information only as an example of an alternative for AF_INET_SDP.

Bart.