netdev - Re: [net-next-2.6 PATCH 2/2] ixgbe: fix bug when EITR=0 causing no writebacks

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Message-Id: <20100427.125605.124069593.davem@davemloft.net>
Date:	Tue, 27 Apr 2010 12:56:05 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	jeffrey.t.kirsher@...el.com
Cc:	netdev@...r.kernel.org, gospo@...hat.com,
	jesse.brandeburg@...el.com
Subject: Re: [net-next-2.6 PATCH 2/2] ixgbe: fix bug when EITR=0 causing no
 writebacks

From: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
Date: Tue, 27 Apr 2010 04:37:41 -0700

> From: Jesse Brandeburg <jesse.brandeburg@...el.com>
> 
> writebacks can be held indefinitely by hardware if EITR=0, when
> combined with TXDCTL.WTHRESH=8.  When EITR=0, WTHRESH should be
> set back to zero.
> 
> Signed-off-by: Jesse Brandeburg <jesse.brandeburg@...el.com>
> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com>

Applied.
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