From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from xc.sipsolutions.net ([83.246.72.84]:46623 "EHLO sipsolutions.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753346AbYFRVSP (ORCPT ); Wed, 18 Jun 2008 17:18:15 -0400 Subject: Re: [PATCH 2/2] mac80211: add spectrum capabilities From: Johannes Berg To: Tomas Winkler Cc: linville@tuxdriver.com, yi.zhu@intel.com, linux-wireless@vger.kernel.org In-Reply-To: <1ba2fa240806181411j15544134ga55607c394ff5db7@mail.gmail.com> (sfid-20080618_231111_448703_F8563F8D) References: <1213800824-32107-1-git-send-email-tomas.winkler@intel.com> <1213800824-32107-2-git-send-email-tomas.winkler@intel.com> <1213803431.1312.24.camel@johannes.berg> <1ba2fa240806180917i320fac4bxcfd7416349850bff@mail.gmail.com> <1213809824.1312.34.camel@johannes.berg> <1ba2fa240806181411j15544134ga55607c394ff5db7@mail.gmail.com> (sfid-20080618_231111_448703_F8563F8D) Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="=-baJMchI7YcLNqBNdpIIW" Date: Wed, 18 Jun 2008 23:17:32 +0200 Message-Id: <1213823853.1312.37.camel@johannes.berg> (sfid-20080618_231819_228676_BD7B34FD) Mime-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org List-ID: --=-baJMchI7YcLNqBNdpIIW Content-Type: text/plain Content-Transfer-Encoding: quoted-printable > Yes, this is handled by firmware, What is important is to make switch > on beacon edge. > Still our implementation uses also timer in mac rather then some mac > to driver over complicated synchronization. > Other thing is that the firmware enforce the switching, traffic on the > old channel is not allowed after the switch. Yeah, ok. As for enforcing the traffic, true as well. However, I'd like mac80211 to help out with this for those drivers that don't do it all in firmware (all others, I'd assume); it's not overly important that you switch instantly after receiving the switch beacon, if you take a bit longer to do that you'll just potentially miss a few packets. No big deal. > > Also, does your firmware implement full radar detection? Broadcom and > > Atheros hardware seem to only pass information about pulse edges up to > > the driver (in different ways, obviously) and pulse/radar detection > > needs to be done in software, I'd like that to be somehow shareable. > > > iwl drivers were designed for laptop marked mostly unlike like other > vendors that plays in AP market so the radar awareness is in slave > mode. I think the hw actually support radar detection but I'm not sure > it was ever employed in a product. Oh, right, ok. johannes --=-baJMchI7YcLNqBNdpIIW Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Comment: Johannes Berg (powerbook) iQIcBAABAgAGBQJIWXtpAAoJEKVg1VMiehFY1c0QAJBc4ylhsfuRVfZfAbafMwvk 4A1WRut1/SgTLCbFJZS8FOVOVWgDGN488caqTj+grcCuTFbpa8TjVnJZBzepTNaV H9wY3UDuGZsiDIeIiwASRTFA3pTfpYuSc3/zwhC3jaOcp+ynHdxC9hGcDMfPL+lb xkivtOg5tsx35hrYCJXbEjWYekYxxiMZ0le9ZiOy77phy+XcQfmPSvw2s3r3uvZt Ol+GKRgknm+OOkeFMuCwmm/hgEPtKj0LmRDuB9f1fI5DhD4hICmZqNlM8uGVLfY2 lk+eptXWlJl2O+wXf0zxIwy5aoN+NcQsg3Vko/oV7WmUirT3Rd3N+e2rlBAZaLqo Lda+jZWWFpVuE5P2gaK7vznJm2qSNK2qIpi1r0C00vetufWVbZD5P1IOAL8Zjb5J JD+yj9LGV59tHZq2YmZusbcC6PP/GRmngBMkfMSQwnkxvm3ny1wuisUjCHD36w0n 5+UWzBzWhnZRvi+aNH1OV/T6abOjS2n6EJyiaUcWKRCUQMnnhvYSXVJhSs3k72DY iFest2Ecig/E7bVxKIdYf+fOdAy3gQlLRAkmN9AwucXWg+vcT3HY3nJGafyrjiFT yBj8H1Mi1S3oYgFCaSQp1KS2BSd9m79K+Pcj8K6VL/ZqQXFHLxz0ZlZqyunZ+fgy evUx0x2WJH93WaAyD+1q =gHxW -----END PGP SIGNATURE----- --=-baJMchI7YcLNqBNdpIIW--