[ofa-general] Re: [ewg] OFED March 24 meeting summary on OFED 1.4 plans

[Tang, Changqing]

Thanks. When can we have the SA features, very soon, long time, or never ?


--CQ

> -----Original Message-----
> From: Hal Rosenstock [mailto:hrosenstock at xsigo.com]
> Sent: Thursday, April 03, 2008 10:02 AM
> To: Tang, Changqing
> Cc: Erez Zilber; Tziporet Koren; ewg at lists.openfabrics.org;
> general at lists.openfabrics.org
> Subject: RE: [ofa-general] Re: [ewg] OFED March 24 meeting
> summary on OFED 1.4 plans
>
> On Thu, 2008-04-03 at 14:53 +0000, Tang, Changqing wrote:
> > One other thing I hope to talk is some fabric query functionalities
> > for normal user, not only just for root. This is at IB
> verbs level, not rdma_cm level.
> >
> > for example, in MPI, process A know the HCA guid on another node.
> > After running for some time, the switch is restarted for
> some reason, and the whole fabric is re-configured.
> >
> > Now process A wants to know if the port lid on another node has
> > changed or not, it knows the HCA guid,  is there any
> function to query this ?
>
> > I know as root, we can use the mad/umad library to do this kind of
> > query, I want to do such query in MPI, which is a normal user.
>
> In the IB arch, there are SA registrations and queries for
> the specific example you used. However, these are not
> directly exposed to Linux user space directly (for the normal
> user as opposed to MAD user (note there are some difficulties
> in making this available to the normal user)) (at least not
> yet AFAIK). While these are not (direct) fabric query (really
> SA query), they serve the same function in a different way.
>
> -- Hal
>
> > --CQ Tang, HP-MPI
> >
> >
> >
> > > -----Original Message-----
> > > From: general-bounces at lists.openfabrics.org
> > > [mailto:general-bounces at lists.openfabrics.org] On Behalf Of Erez
> > > Zilber
> > > Sent: Thursday, April 03, 2008 8:51 AM
> > > To: Tziporet Koren
> > > Cc: ewg at lists.openfabrics.org; general at lists.openfabrics.org
> > > Subject: [ofa-general] Re: [ewg] OFED March 24 meeting summary on
> > > OFED 1.4 plans
> > >
> > > >
> > > > *OFED 1.4:*
> > > > 1. Kernel base: since we target 1.4 release to Sep we
> target the
> > > > kernel base to be 2.6.27
> > > >     This is a good target, but we may need to stay with
> > > 2.6.26 if the
> > > > kernel progress will not be aligned.
> > > >
> > > > 2. Suggestions for new features:
> > > >
> > > >     * NFS-RDMA
> > > >     * Verbs: Reliable Multicast (to be presented at Sonoma)
> > > >     * SDP - Zero copy (There was a question on IPv6 support
> > > - seems no
> > > >       one interested for now)
> > > >     * IPoIB - continue with performance enhancements
> > > >     * Xsigo new virtual NIC
> > > >     * New vendor HW support - non was reported so far (IBM
> > > and Chelsio
> > > >       - do you have something?)
> > > >     * OpenSM:
> > > >           o Incremental routing
> > > >           o Temporary SA DB - to answer queries and a heavy
> > > sweep is done
> > > >           o APM - disjoint paths (?)
> > > >           o MKey manager (?)
> > > >           o Sasha to send more management features
> > > >     * MPI:
> > > >           o Open MPI 1.3
> > > >           o APM support in MPI
> > > >           o mvapich ???
> > > >     * uDAPl
> > > >           o Extensions for new APIs (like XRC) - ?
> > > >           o uDAPL provider for interop between Windows & Linux
> > > >           o 1.2 and 2.0 will stay
> > > >
> > >
> > > As I wrote in an earlier discussion (~2 months ago), we
> plan to add
> > > tgt (SCSI target) with iSCSI over iSER (and TCP of
> > > course) support. The git tree for tgt already exists on the ofa
> > > server.
> > >
> > > Erez
> > >
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