From: "David S. Miller" <davem@redhat.com>
To: taka@valinux.co.jp
Cc: neilb@cse.unsw.edu.au, linux-kernel@vger.kernel.org,
nfs@lists.sourceforge.net
Subject: Re: [PATCH] zerocopy NFS for 2.5.36
Date: Wed, 18 Sep 2002 16:00:57 -0700 (PDT) [thread overview]
Message-ID: <20020918.160057.17194839.davem@redhat.com> (raw)
In-Reply-To: <20020918.171431.24608688.taka@valinux.co.jp>
From: Hirokazu Takahashi <taka@valinux.co.jp>
Date: Wed, 18 Sep 2002 17:14:31 +0900 (JST)
1)
ftp://ftp.valinux.co.jp/pub/people/taka/2.5.36/va10-hwchecksum-2.5.36.patch
This patch enables HW-checksum against outgoing packets including UDP frames.
Can you explain the TCP parts? They look very wrong.
It was discussed long ago that csum_and_copy_from_user() performs
better than plain copy_from_user() on x86. I do not remember all
details, but I do know that using copy_from_user() is not a real
improvement at least on x86 architecture.
The rest of the changes (ie. the getfrag() logic to set
skb->ip_summed) looks fine.
3)
ftp://ftp.valinux.co.jp/pub/people/taka/2.5.36/va-csumpartial-fix-2.5.36.patch
This patch fixes the problem of x86 csum_partilal() routines which
can't handle odd addressed buffers.
I've sent Linus this fix already.
next prev parent reply other threads:[~2002-09-18 23:05 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-09-18 8:14 Hirokazu Takahashi
2002-09-18 23:00 ` David S. Miller [this message]
2002-09-18 23:54 ` Alan Cox
2002-09-19 0:16 ` Andrew Morton
2002-09-19 2:13 ` Aaron Lehmann
2002-09-19 3:30 ` Andrew Morton
2002-09-19 10:42 ` Alan Cox
2002-09-19 13:15 ` [NFS] " Hirokazu Takahashi
2002-09-19 20:42 ` Andrew Morton
2002-09-19 21:12 ` David S. Miller
2002-09-21 11:56 ` Pavel Machek
2002-10-14 5:50 ` Neil Brown
2002-10-14 6:15 ` David S. Miller
2002-10-14 10:45 ` kuznet
2002-10-14 10:48 ` David S. Miller
2002-10-14 12:01 ` Hirokazu Takahashi
2002-10-14 14:12 ` Andrew Theurer
2002-10-16 3:44 ` Neil Brown
2002-10-16 4:31 ` David S. Miller
2002-10-16 15:04 ` Andrew Theurer
2002-10-17 2:03 ` [NFS] " Andrew Theurer
2002-10-17 2:31 ` Hirokazu Takahashi
2002-10-17 13:16 ` Andrew Theurer
2002-10-17 13:26 ` Hirokazu Takahashi
2002-10-17 14:10 ` Andrew Theurer
2002-10-17 16:26 ` Hirokazu Takahashi
2002-10-18 5:38 ` Trond Myklebust
2002-10-18 7:19 ` Hirokazu Takahashi
2002-10-18 15:12 ` Andrew Theurer
2002-10-19 20:34 ` Hirokazu Takahashi
2002-10-22 21:16 ` Andrew Theurer
2002-10-23 9:29 ` Hirokazu Takahashi
2002-10-24 15:32 ` Andrew Theurer
2002-10-16 11:09 ` Hirokazu Takahashi
2002-10-16 17:02 ` kaza
2002-10-17 4:36 ` rddunlap
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