[ewg] [GIT PULL compat-rdma] qib for OFED 4.8

Steve Wise swise at opengridcomputing.com
Wed Jul 5 09:34:19 PDT 2017 

Ditto.

> -----Original Message-----
> From: ewg [mailto:ewg-bounces at lists.openfabrics.org] On Behalf Of Pradeep
> Kankipati
> Sent: Monday, July 03, 2017 4:02 AM
> To: Woodruff, Robert J; Davis, Arlin R; Vladimir Sokolovsky; Bart Van Assche;
> rsdance at soft-forge.com; Hanania, Amir; mschlining at ddn.com
> Cc: mdavis at ddn.com; ewg at lists.openfabrics.org; cfernandes at ddn.com
> Subject: Re: [ewg] [GIT PULL compat-rdma] qib for OFED 4.8
> 
> I  agree with Woody's proposal, makes sense to me.
> 
> Thanks,
> Pradeep
> --
> 
> > -----Original Message-----
> > From: ewg [mailto:ewg-bounces at lists.openfabrics.org] On Behalf Of
> > Woodruff,
> > Robert J
> > Sent: Friday, June 30, 2017 10:03 PM
> > To: Davis, Arlin R; Vladimir Sokolovsky; Bart Van Assche; rsdance at soft-
> > forge.com; Hanania, Amir; mschlining at ddn.com
> > Cc: mdavis at ddn.com; ewg at lists.openfabrics.org; cfernandes at ddn.com
> > Subject: Re: [ewg] [GIT PULL compat-rdma] qib for OFED 4.8
> >
> > I vote for documenting the problem as a known issue with documentation on
> > any known workarounds (such as using Bart's srp_backports driver) and then
> > work on getting an in-box fix into OFED-4.8-1.
> > especially since we are attempting to have a quick turn-around for
> > OFED-4.8-1
> > since  the new content being added is limited, and thus it should not take
> > too
> > long to get done.
> >
> > Vlad, what is your position on this one ?
> >
> > And also, does anyone else have an opinion ?
> >
> > -----Original Message-----
> > From: Davis, Arlin R
> > Sent: Friday, June 30, 2017 9:12 AM
> > To: Woodruff, Robert J <robert.j.woodruff at intel.com>; Vladimir Sokolovsky
> > <vlad at dev.mellanox.co.il>; Bart Van Assche <Bart.VanAssche at wdc.com>;
> > rsdance at soft-forge.com; Hanania, Amir <amir.hanania at intel.com>;
> > mschlining at ddn.com
> > Cc: mdavis at ddn.com; ewg at lists.openfabrics.org; cfernandes at ddn.com
> > Subject: RE: [ewg] [GIT PULL compat-rdma] qib for OFED 4.8
> >
> > We need community input here or some direction from the co-chairs (Woody
> > and Vlad) so we can move forward. I have no problem waiting for a fix if
> > someone can give the EWG a timely ETA on an upstream fix. From what I can
> > tell, the maintainer doesn't have the bandwidth and DDN doesn't have the
> > expertise to fix so I don't see any quick resolution. There are several
> > OFA
> > members anxiously waiting for OFED 4.8-1 to add their new drivers and many
> > that need to get OFED 4.8 GA done. Not sure we can wait weeks and/or
> > months
> > for this to get resolved.
> >
> > The EWG meeting next Monday is on a US holiday and will be cancelled so we
> > don't want to wait 2 weeks for a decision.
> >
> > I am asking EWG and OFA members to please reply with their recommendations
> > and suggestions. We are clearly at an impasse.
> >
> >
> > > -----Original Message-----
> > > From: Woodruff, Robert J
> > > Sent: Thursday, June 29, 2017 1:25 PM
> > > To: Davis, Arlin R <arlin.r.davis at intel.com>; Vladimir Sokolovsky
> > > <vlad at dev.mellanox.co.il>; Bart Van Assche <Bart.VanAssche at wdc.com>;
> > > rsdance at soft-forge.com; Hanania, Amir <amir.hanania at intel.com>;
> > > mschlining at ddn.com
> > > Cc: mdavis at ddn.com; ewg at lists.openfabrics.org; cfernandes at ddn.com
> > > Subject: RE: [ewg] [GIT PULL compat-rdma] qib for OFED 4.8
> > >
> > > I know that DDN really wants to hold the release until a fix is
> > > available.  I am personally OK with just documenting the known issues
> > > for now and fixing them in OFED-4.8-1 as I know there are some people
> > > that want to use what is there now and do not care about SRP.
> > >
> > > What do others think ?  Are we going to have to have a vote to break
> > > this log jam ?
> > >
> > > -----Original Message-----
> > > From: Davis, Arlin R
> > > Sent: Thursday, June 29, 2017 11:10 AM
> > > To: Davis, Arlin R <arlin.r.davis at intel.com>; Vladimir Sokolovsky
> > > <vlad at dev.mellanox.co.il>; Bart Van Assche <Bart.VanAssche at wdc.com>;
> > > rsdance at soft-forge.com; Hanania, Amir <amir.hanania at intel.com>;
> > > Woodruff, Robert J <robert.j.woodruff at intel.com>; mschlining at ddn.com
> > > Cc: mdavis at ddn.com; ewg at lists.openfabrics.org; cfernandes at ddn.com
> > > Subject: RE: [ewg] [GIT PULL compat-rdma] qib for OFED 4.8
> > >
> > > All,
> > >
> > > Here is a quick summary of OFED 4.8 and SRP blocking bugs. Please
> > > correct/comment if I have it wrong.
> > >
> > > - SL7.2 and SL7.3 SRP support is a must for DDN, need latest upstream
> > > SRP
> > > 4.11 fixes
> > > - No resources available to backport or integrate the SRP 4.11 base or
> > > fixes into OFED 4.8
> > > - ib_srp_backport (4.11 base) installs/builds/runs on OFED 4.8 for
> > > both 7.2 and 7.3
> > > - SL7.3+OFED+srp_backport fixes 2632
> > > - SL7.2+OFED+srp_backport still hitting bug 2632
> > > - SL7.2+inbox_infiniband+srp_backport (no OFED) still hitting 2632 and
> > > 2634 (slightly different but still seeing CM DREQ)
> > > - Bug 2632, 2634 still open, no resolution and no ETA on fix from
> > > maintainer
> > >
> > > Given that we still have the same issues without OFED installed and no
> > > ETA on fixes, I would suggest moving forward and releasing OFED 4.8
> > > GA. We can document issues and process for applying upstream SRP fixes
> > > in the release notes.
> > >
> > > If there are no objections, I would like Vlad to modify OFED release
> > > notes, add the 2 remaining bugs to known issues, and add backport
> > > procedure for SRP upstream as follow:
> > >
> > > http://bugs.openfabrics.org/show_bug.cgi?id=2632
> > > http://bugs.openfabrics.org/show_bug.cgi?id=2634
> > >
> > > The ib_srp-backport procedure is as follows:
> > >  1. Install the OS (RHEL, SLES, ...).
> > >  2. Install OFED.
> > >  3. Install the ib_srp-backport driver:
> > >  	git clone https://github.com/bvanassche/ib_srp-backport
> > >  	cd ib_srp-backport
> > >  	make rpm
> > >  	sudo rpm -U $PWD/rpmbuilddir/RPMS/*/*.rpm
> > >
> > > We can then release GA package tomorrow with these changes and latest
> > > daily build.
> > > Any other release notes changes?
> > >
> > > Thanks,
> > >
> > > Arlin
> > >
> > > > -----Original Message-----
> > > > From: ewg [mailto:ewg-bounces at lists.openfabrics.org] On Behalf Of
> > > > Davis, Arlin R
> > > > Sent: Friday, June 23, 2017 12:59 PM
> > > > To: Vladimir Sokolovsky <vlad at dev.mellanox.co.il>; Bart Van Assche
> > > > <Bart.VanAssche at wdc.com>; rsdance at soft-forge.com; Hanania, Amir
> > > > <amir.hanania at intel.com>; Woodruff, Robert J
> > > > <robert.j.woodruff at intel.com>; mschlining at ddn.com
> > > > Cc: mdavis at ddn.com; ewg at lists.openfabrics.org; cfernandes at ddn.com
> > > > Subject: Re: [ewg] [GIT PULL compat-rdma] qib for OFED 4.8
> > > >
> > > > It seems like we now have a way to apply the latest SRP upstream
> > > > fixes to OFED 4.8, tested with RH 7.2 and RH7.3. However, we still
> > > > have 2 critical bugs
> > > > (1 new one) on RH 7.2 even after the upstream fixes are applied. RH
> > > > 7.3+OFED4.8+srp_backport seems to be fine.
> > > >
> > > > http://bugs.openfabrics.org/show_bug.cgi?id=2632
> > > > http://bugs.openfabrics.org/show_bug.cgi?id=2634
> > > >
> > > > How does DDN want to proceed?
> > > > Is it acceptable to apply upstream version/fixes to OFED 4.8 as
> > > > follow, document in release notes?
> > > > Can you tell us if the remaining bugs are related to OFED 4.8 or if
> > > > RH7.2+infiniband+srp_backport has the same issues?
> > > >
> > > > The ib_srp-backport procedure is as follows:
> > > > 1. Install the OS (RHEL, SLES, ...).
> > > > 2. Install OFED.
> > > > 3. Install the ib_srp-backport driver:
> > > > 	git clone https://github.com/bvanassche/ib_srp-backport
> > > > 	cd ib_srp-backport
> > > > 	make rpm
> > > > 	sudo rpm -U $PWD/rpmbuilddir/RPMS/*/*.rpm
> > > >
> > > > Thanks,
> > > >
> > > > Arlin
> > > >
> > > > > SRP is included already in OFED-4.8 as a part of linux-4.8 kernel
> > > > > and I don't see any reason to include SRP code twice.
> > > > > If some bug fixes have to be added there then there is a specific
> > > > > place in compat-rdma git tree for the relevant patches.
> > > > > If somebody is interested to add an additional SRP standalone
> > > > > package then please send me the relevant patches for
> > > > > compat-rdma/ofed_scripts and build git trees.
> > > > >
> > > > > Regards,
> > > > > Vladimir
> > > > >
> > > > >
> > > > > On 06/20/2017 09:01 PM, Davis, Arlin R wrote:
> > > > > > Ok. Vlad, what would it take to get this backported version of
> > > > > > SRP into OFED
> > > > > 4.8?
> > > > > >
> > > > > >> -----Original Message-----
> > > > > >> From: Bart Van Assche [mailto:Bart.VanAssche at wdc.com]
> > > > > >> Sent: Tuesday, June 20, 2017 10:49 AM
> > > > > >> To: vlad at dev.mellanox.co.il; rsdance at soft-forge.com; Davis,
> > > > > >> Arlin R <arlin.r.davis at intel.com>; Hanania, Amir
> > > > > >> <amir.hanania at intel.com>; Woodruff, Robert J
> > > > > >> <robert.j.woodruff at intel.com>; mschlining at ddn.com
> > > > > >> Cc: ewg at lists.openfabrics.org; cfernandes at ddn.com;
> > > mdavis at ddn.com
> > > > > >> Subject: Re: [ewg] [GIT PULL compat-rdma] qib for OFED 4.8
> > > > > >>
> > > > > >> Hello Arlin,
> > > > > >>
> > > > > >> Adding a URL to the OFED README is not the same as including a
> > > > > >> version of the ib_srp-backport driver in OFED. How can OFED
> > > > > >> users know what version of the ib_srp-backport driver has been
> > > > > >> tested in combination with which OFED version?
> > > > > >>
> > > > > >> Thanks,
> > > > > >>
> > > > > >> Bart.
> > > > > >>
> > > > > >> On Tue, 2017-06-20 at 17:18 +0000, Davis, Arlin R wrote:
> > > > > >>> Marty,
> > > > > >>>
> > > > > >>> Would this work for DDN? We could add the URL and the SRP
> > > > > >>> backport readme to the OFED release notes. I believe you had
> > > > > >>> an issue when applying the backport to SL 7.2 and OFED 4.8 RC4
> > > > > >>> but I think Bart fixed that
> > > > > >> already.
> > > > > >>> Thanks, Arlin
> > > > > >>>
> > > > > >>>> Hello Arlin and Robert,
> > > > > >>>>
> > > > > >>>> A backported version of the 4.11 ib_srp driver that already
> > > > > >>>> has been tested is available at
> > > > > >>>> https://github.com/bvanassche/ib_srp-
> > > > > backport.
> > > > > >>>> That driver builds fine against kernel.org kernels,
> > > > > >>>> RHEL/CentOS kernels, openSuSE and SLES kernels and also
> > > > > >>>> against MOFED and
> > > OFED.
> > > > > >>>> Has it already been considered to use that code base instead
> > > > > >>>> of duplicating the backporting effort of the ib_srp driver?
> > > > > >>>>
> > > > > >>>> Thanks,
> > > > > >>>>
> > > > > >>>> Bart.
> > > >
> > > > _______________________________________________
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