From mboxrd@z Thu Jan 1 00:00:00 1970 From: Luis R. Rodriguez Date: Thu, 7 May 2009 14:28:18 -0700 Subject: [ath9k-devel] Througput 802.11g-like - configuration issue? In-Reply-To: <892822.32482.qm@web55303.mail.re4.yahoo.com> References: <20090427173858.GB6486@tesla> <892822.32482.qm@web55303.mail.re4.yahoo.com> Message-ID: <20090507212818.GF13596@tesla> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: ath9k-devel@lists.ath9k.org On Thu, May 07, 2009 at 01:35:33PM -0700, austinxxh-ath9k at yahoo.com wrote: > Luis, > > from http://linuxwireless.org/en/users/Drivers/ath9k it states IBSS mode is supported. > > Are you saying ath9k/11n will not support mesh/IBSS anytime in the future? I'm a bit confused by the message below. Let me try to put this into a few sets of logical components, might be easier to understand: * ath9k supports Ad-hoc (since 2.6.27) and Mesh (since 2.6.31 IIRC) * To use 802.11n completely you need to support MCS rates and aggregation * There are two types of 802.11n aggregation: AMPDU, AMSDU * mac80211 only supports AMPDU aggregation, there is some support for AMDSU aggregation but for RX only and I am not sure if this was ever tested * 802.11 standards do not yet define how to support aggregation with ad-hoc or mesh * mac80211 does not support aggregation for Ad-hoc or Mesh, it just won't happen * You can probably use MCS rates with ath9k in both ad-hoc and in mesh mode but that's just by chance -- in the future we could decide just disable that. For more details on 802.11n please see: http://wireless.kernel.org/en/developers/Documentation/ieee80211/802.11n Luis > > thanks! > xiao > > > --- On Mon, 4/27/09, Luis R. Rodriguez wrote: > From: Luis R. Rodriguez > Subject: Re: [ath9k-devel] Througput 802.11g-like - configuration issue? > To: "Fabian Hugelshofer" > Cc: "Johannes Berg" , "ath9k-devel at lists.ath9k.org" > Date: Monday, April 27, 2009, 12:38 PM > > > On Mon, Apr 20, 2009 at 08:34:08AM -0700, Fabian > Hugelshofer wrote: > > Hi all, > > > > I am using ath9k with OpenWRT. I have two router boards with identical > > wireless cards. The wireless card get recognised as: > > phy0: Atheros AR9160 MAC/BB Rev:1 AR5133 RF Rev:b0 > > > > Both cards operate in ad-hoc mode on 2.4 or 5Ghz. > > To use 11n fully (MCS rates and aggregation) you will need hostapd > to use AP mode and a STA capable of using 11n. Ad-hoc mode does not > define how to implement 11n support and as such we don't support it > with mac80211. Right now in mac80211 we do allow you to set your > channel type to an HT mode if on adhoc or Mesh but perhaps we'll > disable this as its not supposed really supported. > > Luis > _______________________________________________ > ath9k-devel mailing list > ath9k-devel at lists.ath9k.org > https://lists.ath9k.org/mailman/listinfo/ath9k-devel >