Return-path: Received: from mga01.intel.com ([192.55.52.88]:41013 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751575AbZCIULq convert rfc822-to-8bit (ORCPT ); Mon, 9 Mar 2009 16:11:46 -0400 From: "Guy, Wey-Yi W" To: Kevin Wilson , "linux-wireless@vger.kernel.org" Date: Mon, 9 Mar 2009 13:11:43 -0700 Subject: RE: Packet aggregation in iwlwifi drivers Message-ID: (sfid-20090309_211149_962841_B474D774) References: <55c333c0903090134o4c6c65b7v4bf0674971f9156c@mail.gmail.com> In-Reply-To: <55c333c0903090134o4c6c65b7v4bf0674971f9156c@mail.gmail.com> Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org List-ID: You are correct, iwlwifi driver will handle enable the h/w aggregation queue and based on the ampdu_action() and other condition such as sequence# to decide which queue the pkt shall belong to. All the real aggregation works are performed in the firmware. Wey-Yi Guy Intel Corporation 2111 N.E. 25th Avenue M/S JF3-308 Hillsboro OR 97124-5961 USA Work Phone: 503-264-6023 (OR) Cell Phone: 503-329-8410 Email: wey-yi.w.guy@intel.com -----Original Message----- From: linux-wireless-owner@vger.kernel.org [mailto:linux-wireless-owner@vger.kernel.org] On Behalf Of Kevin Wilson Sent: Monday, March 09, 2009 1:35 AM To: linux-wireless@vger.kernel.org Subject: Packet aggregation in iwlwifi drivers Hello, - I have a short question about packet aggregation in iwlwifi drivers which support 802.11n: Is packet aggregation in these drivers performed by the firmware ? I noticed that the ampdu_action() function is implemented by iwl_mac_ampdu_action() in these drivers; but as far as I can find, only the operations of start/stop tx and rx aggregation are implemented in the driver, so I guess that the aggregation of MPDU packets (concatenating them into a single block, sending BAR - block acknowledge request, sending the block containing aggregated MPDUs, and so on) are implemented in firmware. Is it so ? Regards, Kevin -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html