From: Stefani Seibold <stefani@seibold.net>
To: "Ira W. Snyder" <iws@ovro.caltech.edu>
Cc: linux-kernel <linux-kernel@vger.kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Andi Kleen <andi@firstfloor.org>,
Greg Kroah-Hartman <gregkh@suse.de>,
Alan Cox <alan@lxorguk.ukuu.org.uk>, Theodore Tso <tytso@mit.edu>
Subject: Re: [PATCH] enhanced reimplemented of the kfifo API
Date: Fri, 15 Jan 2010 22:30:01 +0100 [thread overview]
Message-ID: <1263591001.7531.1.camel@wall-e> (raw)
In-Reply-To: <20100115192029.GC10591@ovro.caltech.edu>
> I'm glad to see this example, it really illustrates how to use the new
> DMA functionality of the kfifo API.
>
> Is there any reason why a very large scatterlist could not be used? I
> have a driver that uses a large scatterlist (~4000 entries, allocated as
> a struct sg_table). I implemented my own copy_from_user() functionality
> into this scatterlist, but I'd love to use the kfifo DMA API instead.
> After filling the scatterlist, I use the usual DMA API's to transfer it
> to my device.
>
No, but the API will only return max. two entries.
Stefani
next prev parent reply other threads:[~2010-01-15 21:30 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-01-15 9:06 [PATCH] enhanced reimplemented of the kfifo API Stefani Seibold
2010-01-15 19:20 ` Ira W. Snyder
2010-01-15 21:30 ` Stefani Seibold [this message]
2010-01-15 22:01 ` Ira W. Snyder
2010-01-15 22:05 ` Stefani Seibold
2010-01-15 23:38 ` Ira W. Snyder
2010-01-16 7:25 ` Stefani Seibold
-- strict thread matches above, loose matches on Subject: below --
2010-01-14 16:39 Stefani Seibold
2010-01-06 11:12 Stefani Seibold
2010-01-06 17:03 ` tytso
2010-01-06 17:32 ` Stefani Seibold
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