- To: Jeff Garzik <jgarzik@xxxxxxxxx>
- Subject: Re: [PATCH 0/5] x86, MSI, AHCI: Support multiple MSIs
- From: Alexander Gordeev <agordeev@xxxxxxxxxx>
- Date: Fri, 17 Aug 2012 10:30:12 +0200
- Cc: linux-kernel@xxxxxxxxxxxxxxx, Ingo Molnar <mingo@xxxxxxxxxx>, Thomas Gleixner <tglx@xxxxxxxxxxxxx>, Bjorn Helgaas <bhelgaas@xxxxxxxxxx>, Suresh Siddha <suresh.b.siddha@xxxxxxxxx>, Yinghai Lu <yinghai@xxxxxxxxxx>, Matthew Wilcox <willy@xxxxxxxxxxxxxxx>, x86@xxxxxxxxxx, linux-pci@xxxxxxxxxxxxxxx, linux-ide@xxxxxxxxxxxxxxx
- In-reply-to: <502D1D9F.9020203@pobox.com>
- List-id: <linux-ide.vger.kernel.org>
- User-agent: Mutt/1.5.21 (2010-09-15)
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@xxxxxxxxxx
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