From: kuznet@ms2.inr.ac.ru
To: ionut@moisil.cs.columbia.edu (Ion Badulescu)
Cc: linux-kernel@vger.kernel.org, andrewm@uow.EDU.AU
Subject: Re: [UPDATE] Zerocopy patches, against 2.4.1-pre10
Date: Thu, 25 Jan 2001 23:36:03 +0300 (MSK) [thread overview]
Message-ID: <200101252036.XAA10500@ms2.inr.ac.ru> (raw)
In-Reply-To: <200101252028.f0PKSJR02124@moisil.dev.hydraweb.com> from "Ion Badulescu" at Jan 25, 1 12:28:19 pm
Hello!
> Starfire card does, maybe the 3com is different. :-)
3com _is_ different. 8)
I is not an issue, we do not make zerocopy on IP fragments.
> Are we even bothering with the partial checksums at this point, or
> are we falling back to CPU checksumming if the packet is fragmented?
Of course, we are not bothering.
> And, on a related note: what's involved in making a driver
> zerocopy-aware? I haven't looked too closely to the current patch,
> but I was thinking of playing with the starfire driver, since I
> have all the chipset docs..
Nothing especially clever. Gather plus checksumming, as described
in comment in linux/netdevice.h. Well, just look into one of existing
drivers: better, sunhme. 3com and acenic are too stupid to learn something.
Alexey
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next prev parent reply other threads:[~2001-01-25 20:36 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <200101242123.NAA00986@pizda.ninka.net>
2001-01-25 1:40 ` [UPDATE] Zerocopy patches, against 2.4.1-pre10 Andrew Morton
2001-01-25 19:29 ` kuznet
2001-01-25 20:28 ` Ion Badulescu
2001-01-25 20:36 ` kuznet [this message]
2001-01-25 20:43 ` David S. Miller
2001-01-25 21:11 ` Ion Badulescu
2001-01-26 19:43 ` kuznet
2001-01-29 22:02 ` David S. Miller
2001-01-25 21:14 ` David S. Miller
2001-01-25 21:29 ` Steve Whitehouse
2001-01-31 16:04 ` Alan Cox
2001-03-11 20:55 ` NBD Fix (attempt #2) Steve Whitehouse
2001-01-25 21:38 ` [UPDATE] Zerocopy patches, against 2.4.1-pre10 David S. Miller
2001-01-26 6:06 ` Ion Badulescu
2001-01-26 13:13 ` David S. Miller
2001-01-26 20:43 ` Ion Badulescu
2001-01-27 0:55 ` Ion Badulescu
2001-01-27 18:39 ` kuznet
2001-01-27 21:18 ` Ion Badulescu
2001-01-30 6:02 ` David S. Miller
2001-01-26 1:27 ` Andrew Morton
2001-01-25 9:29 ` David S. Miller
2001-01-24 21:52 Jonathan Earle
2001-01-24 23:33 ` Peter Samuelson
-- strict thread matches above, loose matches on Subject: below --
2001-01-24 21:34 Jonathan Earle
2001-01-24 21:45 ` Mathieu Chouquet-Stringer
2001-01-31 22:42 ` Rogerio Brito
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