linux-kernel - Re: [PATCH 0/5] x86, MSI, AHCI: Support multiple MSIs

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Message-ID: <20120817083011.GJ2246@dhcp-26-207.brq.redhat.com>
Date:	Fri, 17 Aug 2012 10:30:12 +0200
From:	Alexander Gordeev <agordeev@...hat.com>
To:	Jeff Garzik <jgarzik@...ox.com>
Cc:	linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...hat.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Suresh Siddha <suresh.b.siddha@...el.com>,
	Yinghai Lu <yinghai@...nel.org>,
	Matthew Wilcox <willy@...ux.intel.com>, x86@...nel.org,
	linux-pci@...r.kernel.org, linux-ide@...r.kernel.org
Subject: Re: [PATCH 0/5] x86, MSI, AHCI: Support multiple MSIs

On Thu, Aug 16, 2012 at 12:19:43PM -0400, Jeff Garzik wrote:
> 1) AHCI takes a host-wide lock during interrupt processing, which
> quite reduces the value of "interrupts generated by different
> ports could be serviced on different CPUs"
> 
> 2) We do not put AHCI-specific code in libata-core.  Try libahci.c
> or ahci.c.

Will fix that and post along with numbers.

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