Hi Marty,
First, the issue should be fixed in the latest upstream kernel
(4.12-rc7). Once the fix is submitted upstream it can be integrated into
OFED-4.8.
Regards,
Vladimir
On 06/29/2017 09:20 PM, Marty Schlining wrote:
All,
I do object. I do not see the sense in releasing OFED 4.8 where it completely
breaks the functionality of the previous OFED release. I'd like to see the
issues fixed before the release of OFED 4.8.
I understand that there is a bandwidth issue from the maintainer. How could I
be of assistance in this regard? Given, that I not up to speed on the SRP
codebase or setup to debug it properly. But, that could be changed with some
assistance. Vlad, what area of the code should I be looking at?
Thanks,
Marty
-----Original Message-----
From: Davis, Arlin R [mailto:arlin.r.da...@intel.com]
Sent: Thursday, June 29, 2017 2:10 PM
To: Davis, Arlin R <arlin.r.da...@intel.com>; Vladimir Sokolovsky <v...@dev.mellanox.co.il>; Bart Van
Assche <bart.vanass...@wdc.com>; rsda...@soft-forge.com; Hanania, Amir <amir.hana...@intel.com>;
Woodruff, Robert J <robert.j.woodr...@intel.com>; Marty Schlining <mschlin...@ddn.com>
Cc: Mike Davis <mda...@ddn.com>; ewg@lists.openfabrics.org; Cedric Fernandes
<cfernan...@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-boun...@lists.openfabrics.org] On Behalf Of
Davis, Arlin R
Sent: Friday, June 23, 2017 12:59 PM
To: Vladimir Sokolovsky <v...@dev.mellanox.co.il>; Bart Van Assche
<bart.vanass...@wdc.com>; rsda...@soft-forge.com; Hanania, Amir
<amir.hana...@intel.com>; Woodruff, Robert J
<robert.j.woodr...@intel.com>; mschlin...@ddn.com
Cc: mda...@ddn.com; ewg@lists.openfabrics.org; cfernan...@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.vanass...@wdc.com]
Sent: Tuesday, June 20, 2017 10:49 AM
To: v...@dev.mellanox.co.il; rsda...@soft-forge.com; Davis, Arlin
R <arlin.r.da...@intel.com>; Hanania, Amir
<amir.hana...@intel.com>; Woodruff, Robert J
<robert.j.woodr...@intel.com>; mschlin...@ddn.com
Cc: ewg@lists.openfabrics.org; cfernan...@ddn.com; mda...@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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