From: Jason Gunthorpe <jgg@ziepe.ca>
To: Don Dutile <ddutile@redhat.com>
Cc: Leon Romanovsky <leon@kernel.org>,
Daniel Jurgens <danielj@mellanox.com>,
Mark Bloch <markb@mellanox.com>,
Doug Ledford <dledford@redhat.com>,
linux-rdma@vger.kernel.org, Paul Moore <paul@paul-moore.com>,
stable@vger.kernel.org
Subject: Re: [PATCH rdma-rc 1/2] IB/core: Only enforce security for InfiniBand
Date: Tue, 21 Nov 2017 11:57:44 -0700 [thread overview]
Message-ID: <20171121185744.GF18272@ziepe.ca> (raw)
In-Reply-To: <fa4b7d56-5617-2b9f-65dc-386ab69c4e8f@redhat.com>
On Tue, Nov 21, 2017 at 01:16:43PM -0500, Don Dutile wrote:
> >>I don't really think it is really too user visible.. Only the device
> >>and port number change, but only if running in mixed mode.
> >
> >Ahh, correct me if I'm wrong, you are proposing to split mlx4_ib devices
> >to two devices once it is configured in mixed mode, so everyone will
> >have one port only. Did I understand you correctly?
> Which would require splitting resources that are shared now? other
> splitting issue(s)?
A change like this would be almost transparent to most users. The cx3
card in mixed mode will look like a mlx5 card does: two single port
RDMA devices.
I think only a minimal amount of stuff is actually shared between
ports, and as cx5 already demonstrates there isn't really a notable
downside to having two kernel RDMA devices.
Jason
next prev parent reply other threads:[~2017-11-21 18:57 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20171121102618.31216-1-leon@kernel.org>
2017-11-21 10:26 ` [PATCH rdma-rc 1/2] IB/core: Only enforce security for InfiniBand Leon Romanovsky
2017-11-21 10:44 ` Mark Bloch
2017-11-21 13:22 ` Leon Romanovsky
2017-11-21 13:56 ` Mark Bloch
2017-11-21 15:14 ` Jason Gunthorpe
2017-11-21 15:33 ` Mark Bloch
2017-11-21 15:36 ` Jason Gunthorpe
2017-11-21 15:37 ` Daniel Jurgens
2017-11-21 16:04 ` Jason Gunthorpe
2017-11-21 16:34 ` Leon Romanovsky
2017-11-21 16:36 ` Jason Gunthorpe
2017-11-21 16:48 ` Leon Romanovsky
2017-11-21 17:10 ` Jason Gunthorpe
2017-11-21 18:16 ` Don Dutile
2017-11-21 18:57 ` Jason Gunthorpe [this message]
2017-11-21 20:40 ` Leon Romanovsky
2017-11-21 18:15 ` Don Dutile
2017-11-21 13:56 ` Daniel Jurgens
2017-11-22 16:49 ` Leon Romanovsky
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