[openib-general] Re: [uDAPL] dat.conf generator

[James Lentini]

On Tue, 18 Apr 2006, Dotan Barak wrote:

> On Monday 17 April 2006 23:46, James Lentini wrote:
> > 
> > On Sun, 16 Apr 2006, Dotan Barak wrote:
> > 
> > > On Wednesday 12 April 2006 17:50, James Lentini wrote:
> > > > > OpenIB-cma u1.2 nonthreadsafe default /usr/lib/libdaplcma.so mv_dapl.1.2 "mthca0 1" ""
> > > > > OpenIB-cma0-1 u1.2 nonthreadsafe default /usr/lib/libdaplcma.so mv_dapl.1.2 "mthca0 1" ""
> > > > > OpenIB-cma0-2 u1.2 nonthreadsafe default /usr/lib/libdaplcma.so mv_dapl.1.2 "mthca0 2" ""
> > > > > OpenIB-cma1-1 u1.2 nonthreadsafe default /usr/lib/libdaplcma.so mv_dapl.1.2 "mthca1 1" ""
> > > > > OpenIB-cma1-2 u1.2 nonthreadsafe default /usr/lib/libdaplcma.so mv_dapl.1.2 "mthca1 2" ""
> > > > > OpenIB-cma-netdev0 u1.2 nonthreadsafe default /usr/lib/libdaplcma.so mv_dapl.1.2 "ib0 0" ""
> > > > > OpenIB-cma-netdev1 u1.2 nonthreadsafe default /usr/lib/libdaplcma.so mv_dapl.1.2 "ib1 0" ""
> > > > > OpenIB-cma-netdev2 u1.2 nonthreadsafe default /usr/lib/libdaplcma.so mv_dapl.1.2 "ib2 0" ""
> > > > > OpenIB-cma-netdev3 u1.2 nonthreadsafe default /usr/lib/libdaplcma.so mv_dapl.1.2 "ib3 0" ""
> > > > > OpenIB-scm u1.2 nonthreadsafe default /usr/lib/libdaplscm.so mv_dapl.1.2 "mthca0 1" ""
> > > > > OpenIB-scm0-1 u1.2 nonthreadsafe default /usr/lib/libdaplscm.so mv_dapl.1.2 "mthca0 1" ""
> > > > > OpenIB-scm0-2 u1.2 nonthreadsafe default /usr/lib/libdaplscm.so mv_dapl.1.2 "mthca0 2" ""
> > > > > OpenIB-scm1-1 u1.2 nonthreadsafe default /usr/lib/libdaplscm.so mv_dapl.1.2 "mthca1 1" ""
> > > > > OpenIB-scm1-2 u1.2 nonthreadsafe default /usr/lib/libdaplscm.so mv_dapl.1.2 "mthca1 2" ""
> > > > > OpenIB-scm-netdev0 u1.2 nonthreadsafe default /usr/lib/libdaplscm.so mv_dapl.1.2 "ib0 0" ""
> > > > > OpenIB-scm-netdev1 u1.2 nonthreadsafe default /usr/lib/libdaplscm.so mv_dapl.1.2 "ib1 0" ""
> > > > > OpenIB-scm-netdev2 u1.2 nonthreadsafe default /usr/lib/libdaplscm.so mv_dapl.1.2 "ib2 0" ""
> > > > > OpenIB-scm-netdev3 u1.2 nonthreadsafe default /usr/lib/libdaplscm.so mv_dapl.1.2 "ib3 0" ""
> > > > > 
> > Why did you include the OpenIB-Z-netdevX entries? Why would a user 
> > prefer netdevX over ethY?
> 
> as i told you before, i tried to create the configuration file automatically.
> 
> i created the OpenIB-Z-netdevX entries for flexibility: for example 
> you have 2 HCAs in the host, and you want to use a specific one. 
> from other entries you can not be sure which specific HCA is being 
> used.

How does netdevX mapped to an interface (e.g. ib0)? Is this 
information in sysfs somewhere?

> I belive that you have much more experience than i have in using 
> dapl, so i need your help with this issue: which entries do you 
> think that the dat.conf should have?

The OpenIB-cma, OpenIB-cmaX-Y, OpenIB-scm, and OpenIB-scmA-B entries 
are all useful.

I'm still confused about what the *netdev* entries mean.