From mboxrd@z Thu Jan 1 00:00:00 1970 From: Govindarajulu Varadarajan Subject: Re: [PATCH net-next 3/5] driver/net: enic: Try DMA 64 first, then failover to DMA Date: Wed, 4 Sep 2013 11:31:38 +0530 (IST) Message-ID: References: <1378273638-7780-1-git-send-email-govindarajulu90@gmail.com> <1378273638-7780-4-git-send-email-govindarajulu90@gmail.com> Mime-Version: 1.0 Content-Type: TEXT/PLAIN; format=flowed; charset=US-ASCII Cc: davem@davemloft.net, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, benve@cisco.com, ssujith@cisco.com, nistrive@cisco.com, umalhi@cisco.com To: Govindarajulu Varadarajan Return-path: In-Reply-To: <1378273638-7780-4-git-send-email-govindarajulu90@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org Hi Dave The subject for this should be "driver/net: enic: Try DMA 64 first, then failover to DMA 32" The "32" got truncated, please add this while committing. Let me know if you want me to send another patch. thanks //govind On Wed, 4 Sep 2013, Govindarajulu Varadarajan wrote: > In servers with more than 1.1 TB of RAM, the existing 40/32 bit DMA > could cause failure as the DMA-able address could go outside the range > addressable using 40/32 bits. > > The following patch first tried 64 bit DMA if possible, failover to 32 > bit. > > Signed-off-by: Sujith Sankar > Signed-off-by: Christian Benvenuti > Signed-off-by: Govindarajulu Varadarajan