[openib-general] [PATCH 2/3] SA: add call to initialize ib_ah_attr from a path record

[Jason Gunthorpe]

On Fri, May 19, 2006 at 10:19:50AM -0400, Hal Rosenstock wrote:

> > I think it is also prudent to not use a GRH if the DGID's prefix is
> > fe80::/64 (link local scope).
> 
> Agreed. This saves on the overhead in the local subnet case.
> 
> However, wouldn't the HopLimit returned from the SA in this case be 0 or
> 1 so why would that check be needed ?
> 
> If it is, I think the DGID prefix checking may be more than just this.
 
I think the SA should work like you are describing, but how sure are
we that all existing ones do? I'm only suggesting it in case there are
some broken SA's out there.

Jason