netdev - Re: [net-next PATCH 2/2] ixgbe: Defeature Tx Head writeback

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Message-Id: <20090206.214740.223082457.davem@davemloft.net>
Date:	Fri, 06 Feb 2009 21:47:40 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	jeffrey.t.kirsher@...el.com
Cc:	netdev@...r.kernel.org, jeff@...zik.org, gospo@...hat.com,
	peter.p.waskiewicz.jr@...el.com
Subject: Re: [net-next PATCH 2/2] ixgbe: Defeature Tx Head writeback

From: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
Date: Fri, 06 Feb 2009 14:44:47 -0800

> Tx Head writeback is causing multi-microsecond stalls on PCIe chipsets, due
> to partial cacheline writebacks.  Removing this feature removes these
> issues.
> 
> Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@...el.com>
> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com>

Also applied, thanks!
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