netdev - Re: [net-next-2.6 PATCH 2/3] ixgbe: Use bool flag to see if the packet unmapping is delayed in HWRSC

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Message-Id: <20100513.210923.68131492.davem@davemloft.net>
Date:	Thu, 13 May 2010 21:09:23 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	jeffrey.t.kirsher@...el.com
Cc:	netdev@...r.kernel.org, gospo@...hat.com,
	mallikarjuna.chilakala@...el.com
Subject: Re: [net-next-2.6 PATCH 2/3] ixgbe: Use bool flag to see if the
 packet unmapping is delayed in HWRSC

From: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
Date: Thu, 13 May 2010 20:33:21 -0700

> From: Mallikarjuna R Chilakala <mallikarjuna.chilakala@...el.com>
> 
> We can't use zero magic "bad" value to check if IXGBE_RSC_CB(skb)->dma
> is valid. It is only valid in x86/arm/m68k/alpha architectures and in
> spark, powerPC and other architectures it should be ~0. As per
> Benjamin Herrenschmidt feedback use a bool flag to decide if
> the packet unmapping is delayed in hardware RSC till EOP is reached
> 
> Signed-off-by: Mallikarjuna R Chilakala <mallikarjuna.chilakala@...el.com>
> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com>

Applied.
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