linux-kernel - Re: [PATCH 1/1] ib_srp: Infiniband srp fast failover patch.

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Date:	Wed, 30 May 2012 01:06:17 -0400
From:	David Dillow <dillowda@...l.gov>
To:	Karandeep Chahal <kchahal@....com>
Cc:	linux-rdma@...r.kernel.org, linux-kernel@...r.kernel.org,
	roland@...nel.org, sean.hefty@...el.com
Subject: Re: [PATCH 1/1] ib_srp: Infiniband srp fast failover patch.

On Tue, 2012-05-29 at 17:07 -0400, Karandeep Chahal wrote:
> Subject: [PATCH] Infiniband srp fast failover patch.

This conflicts with Bart's patches to improve failover; it will be much
better to use his approach to block the target rather than remove it
wholesale -- we could have lost connectivity as a transient and may get
it back quickly if someone grabbed the wrong cable, etc.

Also, we should only kill the one target on DREQ, and we already have a
pointer to it from the CM context -- no need to search.

It is a good idea to hook into the event mechanism; this is something
I've long wanted to incorporate (as Vu did in OFED). I'm looking at
getting Bart's series to a point I can merge it, and I'll pull in your
ideas -- with credit -- there.

Thanks,
-- 
Dave Dillow
National Center for Computational Science
Oak Ridge National Laboratory
(865) 241-6602 office

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