From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ben Hutchings Subject: Re: [TSO]-Refer to "State of TCP segmentation offload to NIC in linux" Date: Sun, 24 May 2009 14:15:57 +0100 Message-ID: <1243170957.16597.62.camel@deadeye> References: Reply-To: netdev@vger.kernel.org Mime-Version: 1.0 Content-Type: multipart/signed; micalg="pgp-sha1"; protocol="application/pgp-signature"; boundary="=-Di/6yeIdA9I8IS7t39yq" Cc: netdev@vger.kernel.org To: "Nguyen Tuan Huy (G11)" Return-path: Received: from shadbolt.e.decadent.org.uk ([88.96.1.126]:44602 "EHLO shadbolt.e.decadent.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752006AbZEXNQA (ORCPT ); Sun, 24 May 2009 09:16:00 -0400 In-Reply-To: Sender: netdev-owner@vger.kernel.org List-ID: --=-Di/6yeIdA9I8IS7t39yq Content-Type: text/plain Content-Transfer-Encoding: quoted-printable On Sun, 2009-05-24 at 18:38 +0700, Nguyen Tuan Huy (G11) wrote: > Dear Mr Ben Hutchings,=20 >=20 > =20 >=20 > I have read your answer about question "State of TCP segmentation > offload to NIC in linux".=20 >=20 > The link is > http://kerneltrap.org/mailarchive/linux-netdev/2008/5/7/1757954/thread Please direct your queries to the netdev list, not to me personally. > I am now writing network device driver that support TSO function. But > when I send one packet with 64K, then TCP has divided 64K, not passed > the whole 64K to NIC driver. [...] I think you won't see 64K packets for a TCP connection that was just opened, due to the slow start algorithm. Ben. --=20 Ben Hutchings Teamwork is essential - it allows you to blame someone else. --=-Di/6yeIdA9I8IS7t39yq Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) iD8DBQBKGUh679ZNCRIGYgcRAscUAJoDuWvI7vCntmHfocJeroVlgD9/bQCggHRE inGnChhejiTCca9Ok3YLvvI= =edzS -----END PGP SIGNATURE----- --=-Di/6yeIdA9I8IS7t39yq--