From mboxrd@z Thu Jan 1 00:00:00 1970 From: Johannes Berg Subject: Re: [patch 1/2]d80211: hardware TKIP support for ipw3945 Date: Thu, 16 Nov 2006 18:49:42 +0100 Message-ID: <1163699382.3392.9.camel@johannes.berg> References: <1161678908.2840.12.camel@ux156> <1161679134.7258.6.camel@devlinux-hong> <1161681021.2840.23.camel@ux156> <1161764889.8668.13.camel@devlinux-hong> <1161766245.2767.17.camel@ux156> <1163470978.7789.31.camel@devlinux-hong> <1163607901.2705.53.camel@ux156> <1163670762.2763.19.camel@ux156> <20061116172131.GA7404@instant802.com> <1163698700.3392.7.camel@johannes.berg> <20061116174053.GA7531@instant802.com> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="=-jlrM0Dyxx7xqIfCZ5Kq/" Cc: Hong Liu , Jiri Benc , "John W. Linville" , netdev , Michael Buesch , "James P. Ketrenos" , Simon Barber Return-path: Received: from crystal.sipsolutions.net ([195.210.38.204]:35037 "EHLO sipsolutions.net") by vger.kernel.org with ESMTP id S1031147AbWKPRvT (ORCPT ); Thu, 16 Nov 2006 12:51:19 -0500 To: Jouni Malinen In-Reply-To: <20061116174053.GA7531@instant802.com> Sender: netdev-owner@vger.kernel.org List-Id: netdev.vger.kernel.org --=-jlrM0Dyxx7xqIfCZ5Kq/ Content-Type: text/plain Content-Transfer-Encoding: quoted-printable On Thu, 2006-11-16 at 09:40 -0800, Jouni Malinen wrote: > It's been awhile since I working on this part, but if I remember > correctly, this can be done easily by the driver behaving different > based on the frame being fragmented or not (it is fragmented if MoreFrag > flag is set or seq# !=3D 0). That's the way it was done with hardware > designs that allow full TKIP hwaccel for MSDUs that are not fragmented, > but require software implementation of Michael MIC if MSDU is > fragmented. Oh right, I forgot that the driver can just look into the 802.11 header, was checking tx_control only :) johannes --=-jlrM0Dyxx7xqIfCZ5Kq/ Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Comment: Johannes Berg (powerbook) iQIVAwUARVyktaVg1VMiehFYAQJ0Jg/+J+8KKWJVTZOp1oRJx5ctw+ncAjCDyfyR CC3v4WrtdsLV+UBlYFINdt4bwdYtmcXtu1RC0QzQKl39PUGPDJqROAyAKzRiKmzb /h5A70Ug45Krn5BnTxWl4A0CKhf4vOcTkezpJKVaUAEo26/K9AOnWc1w5EaQmg8j ofF9i1zqd12dnB8ka7BivzCK5n5EXgU7wTmkqFZ8FL7YRW+G6VJ/AQ79UGXwORHa hz11GVsFgyJ970qKUEycxo3g5n/eA1XA7t00Yz23d29m5cmRFn71nEPGswyCMOMg cD0ZcV8qF10X7wyiOh8zS4UsrToj1haHvtDCH7kn67NuWjyF+68PBY1RXseIqlUX VBDMexZ8EoCbm/nlMn+zBGbjxX64t3mmJq/5Dc6q0t5xGQrDYKcOBxF0vdRZPAlL KV/525n/iYlCT+cLkHcH5aG4a9xamTjwPA9eaD1y/XfgO9DmSrT/e+2m4NSHA3+e LE68IiIFLbFqvu95grfH56kFydg9r9O65fyVe3oTJ9lLC5GtpDSXdqgfk+4hsFVl yU0DQ1YOFoFqB+85slv3p7Q39eyfxfmbWlWbRAk+JR1KWzKzdFzeOabeGXAEsZv+ AyLV+QLEsRutXusUpR67Bw6s/+DNfKSo56DaAtcVhuG9GCTwZy9ttaNFkTwWh1Qs RothKCiExCk= =DZUL -----END PGP SIGNATURE----- --=-jlrM0Dyxx7xqIfCZ5Kq/--