[openib-general] dapl broken for iWARP

[Steve Wise]

On Wed, 2007-02-07 at 15:57 -0600, Steve Wise wrote:
> On Wed, 2007-02-07 at 14:02 -0600, Steve Wise wrote:
> > Arlin,
> > 
> > The OFED dapl code is assuming the responder_resources and
> > initiator_depth passed up on a connection request event are from the
> > remote peer.  This doesn't happen for iWARP.  In the current iWARP
> > specifications, its up to the application to exchange this information
> > somehow. So these are defaulting to 0 on the server side of any dapl
> > connection over iWARP.  
> > 
> > This is a fairly recent change, I think.  We need to come up with some
> > way to deal with this for OFED 1.2 IMO.
> > 
> 
> The IWCM could set these to the device max values for instance.
> 
> Steve.
> 

There is a slight problem with all this.  There are no device attributes
currently for ORD and IRD.  The ammasso driver maps these to
max_qp_rd_atom (IRD) and max_qp_init_rd_atom(ORD).  But this is screwy.
We need new attribute for these.

For OFED 1.2, I think I should just have the IWCM set them to 8.  The
only RNIC in ofed is cxgb3 and it supports 8...


Steve.