linux-kernel - Re: [PATCH 3/4] AHCI: Conserve interrupts with pci_enable_msi_block

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Message-ID: <20130904184715.GA24341@dhcp-26-207.brq.redhat.com>
Date:	Wed, 4 Sep 2013 20:47:16 +0200
From:	Alexander Gordeev <agordeev@...hat.com>
To:	Tejun Heo <tj@...nel.org>
Cc:	linux-kernel@...r.kernel.org, x86@...nel.org,
	linux-pci@...r.kernel.org, linux-ide@...r.kernel.org,
	Ingo Molnar <mingo@...nel.org>, Joerg Roedel <joro@...tes.org>,
	Jan Beulich <JBeulich@...e.com>,
	Bjorn Helgaas <bhelgaas@...gle.com>
Subject: Re: [PATCH 3/4] AHCI: Conserve interrupts with
 pci_enable_msi_block_part() interface

On Wed, Sep 04, 2013 at 02:06:07PM -0400, Tejun Heo wrote:
> I don't think it's necessary / a good idea to try to support
> everything.  Just following the spec would be fine.  If that doesn't
> work for too many devices, maybe just do one fallback?

Calling pci_enable_msi_block_part() in a loop may seem not that terrible
if you think of the original interface - pci_enable_msi_block(). If we
were to enable multiple MSIs using that one we still had to use it pretty
much the same way ;)

Anyway. I will send a version which reads MMC out.

> Thanks.
> 
> -- 
> tejun

-- 
Regards,
Alexander Gordeev
agordeev@...hat.com
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