[HEADS UP] - OFED/RDMA stack update

[Navdeep Parhar]

+freebsd-arch@

Hi Meny,

Can you please post the KPI/KBI analysis that you generated to some
public location and provide a link here?  A straight MFC would be a
major break of KPI/KBI in -STABLE and the options we're looking at are:

a) Ignore the breakage and let downstream consumers deal with the
fallout.  This obviously isn't ideal in a -STABLE branch.

b) Provide compat shims to at least preserve the KPI.  One challenge is
that the changes include functions with the same name but different
signature/behavior.  See, for example, ib_create_cq in Meny's list once
he publishes it.

c) Have two versions of the OFED interfaces in 11-STABLE and not break
existing downstream consumers at all.

I've reached out to users that I know of and know will be affected.
If you use OFED and FreeBSD 11 this would be a good time to weigh
in with your thoughts, ideas, concerns etc..

Regards,
Navdeep

On Mon, 2018-02-26 at 14:49 +0000, Meny Yossefi wrote:
> Hi, 
> 
> We are currently working on MFC'ing the OFED/RDMA stack update
> mentioned below to FreeBSD11-STABLE.
> 
> We already have working version in 'projects/bsd_rdma_4_9_stable_11'
> (pending iWARP updates) and currently working on ULP integration.
> 
> Again, as always, for any concern/comments you might have, please
> don't hesitate contacting us.
> 
> freebsd-drivers at mellanox.com
> 
> 
> Regards, 
> 
> Meny Yossefi, 
> Mellanox technologies
> 
> 
> -----Original Message-----
> From: Meny Yossefi 
> Sent: Monday, November 13, 2017 11:09 AM
> To: 'freebsd-infiniband at freebsd.org' <freebsd-infiniband at freebsd.org>;
> 'freebsd-current at freebsd.org' <freebsd-current at freebsd.org>
> Cc: freebsd-drivers <freebsd-drivers at mellanox.com>
> Subject: [HEADS UP] - OFED/RDMA stack update 
> 
> Hi, 
> 
> This is to inform you that by end of this week we plan to merge the
> OFED/RDMA stack update from the project - 'bsd_rdma_4_9' into 12-
> CURRENT.
> The update aligns the OFED common code and RDMA vendor drivers with
> Linux v4.9.
> 
> We are still working on final modifications and build testing it prior
> to submission.
> 
> 
> For any concern/comments you might have, please don't hesitate
> contacting us.
> 
> freebsd-drivers at mellanox.com
> 
> 
> Regards, 
> 
> Meny Yossefi, 
> Mellanox technologies
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