linux-kernel - Re: [ewg] Re: [PATCH] IB/ehca: Serialize HCA-related hCalls on POWER5

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Date:	Wed, 12 Dec 2007 14:14:25 +0200
From:	Or Gerlitz <ogerlitz@...taire.com>
To:	Joachim Fenkes <FENKES@...ibm.com>
CC:	Roland Dreier <rdreier@...co.com>, Arnd Bergmann <arnd@...db.de>,
	LKML <linux-kernel@...r.kernel.org>, linuxppc-dev@...abs.org,
	Christoph Raisch <raisch@...ibm.com>,
	OF-General <general@...ts.openfabrics.org>,
	Stefan Roscher <stefan.roscher@...ibm.com>
Subject: Re: [ewg] Re: [PATCH] IB/ehca: Serialize HCA-related hCalls on POWER5

Joachim Fenkes wrote:
> Roland Dreier <rdreier@...co.com> wrote on 10.12.2007 22:47:37:

>> It's an optional device feature, so this should be OK
>> (although the iSER driver currently seems to depend on a device
>> supporting FMRs, which is probably going to be a problem with iWARP
>> support in the future anyway).

> I don't feel very well with removing code from the driver that iSER seems 
> to depend on. Are there plans to fix this in iSER?

What is the fix you suggest, to add a device query that tells you for 
which verbs the documentation does not apply? or enhance the code of the 
  map_phys_fmr verb within the ehca driver to return error if called 
from non-sleepable context?

Or.

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