Return-path: Received: from mail-ob0-f174.google.com ([209.85.214.174]:60172 "EHLO mail-ob0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751989Ab2IZULQ (ORCPT ); Wed, 26 Sep 2012 16:11:16 -0400 Received: by obbuo13 with SMTP id uo13so1011469obb.19 for ; Wed, 26 Sep 2012 13:11:15 -0700 (PDT) MIME-Version: 1.0 In-Reply-To: <55A363C1E44B4755BD470FD0A00C5D53@Connectone.local> References: <1346014505-7554-1-git-send-email-ordex@autistici.org> <1346014505-7554-2-git-send-email-ordex@autistici.org> <1346045881.3746.0.camel@jlt4.sipsolutions.net> <55A363C1E44B4755BD470FD0A00C5D53@Connectone.local> Date: Wed, 26 Sep 2012 13:11:15 -0700 Message-ID: (sfid-20120926_221119_978395_16963E2F) Subject: Re: ath9k_htc: number of VIFs limitation From: Adrian Chadd To: Daniel Doron Cc: ath9k-devel@lists.ath9k.org, linux-wireless@vger.kernel.org Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-wireless-owner@vger.kernel.org List-ID: On 27 August 2012 00:16, Daniel Doron wrote: > Hi, > > Newbie question: what is the reason for the limitation of the number of VIFs > and their combination that is allowed? Is this a s/w limitation or h/w > limitation? Short answer: yes. Long answer: there's limited RAM resources on the USB CPU and there's some per-STA state being kept. Sujith knows the details better, I've stayed out of ath9k_htc internals to date. :) Adrian