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Date:      Thu, 11 Aug 2016 22:46:55 +0000
From:      bugzilla-noreply@freebsd.org
To:        freebsd-bugs@FreeBSD.org
Subject:   [Bug 211761] Add Infiniband (WITH_OFED) support to default buildworld
Message-ID:  <bug-211761-8@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D211761

            Bug ID: 211761
           Summary: Add Infiniband (WITH_OFED) support to default
                    buildworld
           Product: Base System
           Version: CURRENT
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: bin
          Assignee: freebsd-bugs@FreeBSD.org
          Reporter: bacon4000@gmail.com
                CC: freebsd-amd64@FreeBSD.org
                CC: freebsd-amd64@FreeBSD.org

I'm wondering if it would be possible to add OFED support to the default
userland tools in the near future.

Note: I am NOT suggesting adding Infiniband (IB) drivers to the generic ker=
nel,
which I think would be too risky.

Currently, adding IB support to the kernel can be done via either a buildke=
rnel
or by building kernel modules, a very quick and easy process:

https://wiki.freebsd.org/InfiniBand

Adding support to the userland tools still requires a buildworld as far as I
have been able to determine.  This is a major obstacle for mass deployment =
of
IB-enabled systems, such as compute nodes in an HPC cluster.  It's a lengthy
process that could be undone by certain freebsd-update patches, resulting in
additional down time following updates.

I don't believe that enabling OFED support in the userland without enabling=
 the
IB drivers poses any serious risk, and with the availabilty of kernel modul=
es
for the IB drivers, it would allow for rapid deployment and easy maintenanc=
e of
IB-enabled FreeBSD systems.

Thanks,

   Jason

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