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From: Govindarajulu Varadarajan <govindarajulu90@gmail.com>
To: Govindarajulu Varadarajan <govindarajulu90@gmail.com>
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
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)	[thread overview]
Message-ID: <alpine.LNX.2.03.1309041127380.1814@gmail.com> (raw)
In-Reply-To: <1378273638-7780-4-git-send-email-govindarajulu90@gmail.com>

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 <ssujith@cisco.com>
> Signed-off-by: Christian Benvenuti <benve@cisco.com>
> Signed-off-by: Govindarajulu Varadarajan <govindarajulu90@gmail.com>

  reply	other threads:[~2013-09-04  6:01 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-09-04  5:47 [PATCH net-next 0/5] driver/net: enic: enic driver updates Govindarajulu Varadarajan
2013-09-04  5:47 ` [PATCH net-next 1/5] driver/net: enic: Add multi tx support for enic Govindarajulu Varadarajan
2013-09-04  5:47 ` [PATCH net-next 2/5] driver/net: enic: record q_number and rss_hash for skb Govindarajulu Varadarajan
2013-09-04  5:47 ` [PATCH net-next 3/5] driver/net: enic: Try DMA 64 first, then failover to DMA Govindarajulu Varadarajan
2013-09-04  6:01   ` Govindarajulu Varadarajan [this message]
2013-09-04  5:47 ` [PATCH net-next 4/5] driver/net: enic: Exposing symbols for Cisco's low latency driver Govindarajulu Varadarajan
2013-09-04 14:52   ` Ben Hutchings
2013-09-04 16:32     ` Christian Benvenuti (benve)
2013-09-04  5:47 ` [PATCH net-next 5/5] driver/net: enic: update enic maintainers and driver Govindarajulu Varadarajan
2013-09-05 16:40 ` [PATCH net-next 0/5] driver/net: enic: enic driver updates David Miller

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