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From: "Nelson, Shannon" <shannon.nelson@intel.com>
To: "Andrew Morton" <akpm@linux-foundation.org>
Cc: <linux-kernel@vger.kernel.org>,
	"Williams, Dan J" <dan.j.williams@intel.com>
Subject: RE: [PATCH] I/OAT: Add support for version 2 of ioatdma device
Date: Tue, 23 Oct 2007 18:18:54 -0700	[thread overview]
Message-ID: <BAE9DCEF64577A439B3A37F36F9B691C0349A5C8@orsmsx418.amr.corp.intel.com> (raw)
In-Reply-To: <20071023125613.4e90b764.akpm@linux-foundation.org>

>From: Andrew Morton [mailto:akpm@linux-foundation.org] 
>On Fri, 19 Oct 2007 00:20:25 -0700
>Shannon Nelson <shannon.nelson@intel.com> wrote:
>
>> Add support for version 2 of the ioatdma device.  This device handles
>> the descriptor chain and DCA services slightly differently:
>>  - Instead of moving the dma descriptors between a busy and 
>an idle chain,
>>    this new version uses a single circular chain so that we 
>don't have
>>    rewrite the next_descriptor pointers as we add new 
>requests, and the
>>    device doesn't need to re-read the last descriptor.
>>  - The new device has the DCA tags defined internally 
>instead of needing
>>    them defined statically.
>> 

Andrew,

Thank you for your time and the review comments.  I'll attend to the
details and repost.

sln

      reply	other threads:[~2007-10-24  1:19 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-10-19  7:20 Shannon Nelson
2007-10-23 19:56 ` Andrew Morton
2007-10-24  1:18   ` Nelson, Shannon [this message]

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