[ipwave] About OCB patch for ath10k driver on linux

Alexandre Petrescu <alexandre.petrescu@gmail.com> Wed, 18 December 2019 10:38 UTC

Return-Path: <alexandre.petrescu@gmail.com>
X-Original-To: its@ietfa.amsl.com
Delivered-To: its@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id B51701200FE for <its@ietfa.amsl.com>; Wed, 18 Dec 2019 02:38:38 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.632
X-Spam-Level:
X-Spam-Status: No, score=-2.632 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_ADSP_CUSTOM_MED=0.001, FREEMAIL_FROM=0.001, NML_ADSP_CUSTOM_MED=0.9, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_NONE=0.001, SPF_SOFTFAIL=0.665] autolearn=ham autolearn_force=no
Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 4kDES_8s0fmc for <its@ietfa.amsl.com>; Wed, 18 Dec 2019 02:38:36 -0800 (PST)
Received: from sainfoin-smtp-out.extra.cea.fr (sainfoin-smtp-out.extra.cea.fr [132.167.192.228]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id D73781200F6 for <its@ietf.org>; Wed, 18 Dec 2019 02:38:35 -0800 (PST)
Received: from pisaure.intra.cea.fr (pisaure.intra.cea.fr [132.166.88.21]) by sainfoin-sys.extra.cea.fr (8.14.7/8.14.7/CEAnet-Internet-out-4.0) with ESMTP id xBIAcYC7046246 for <its@ietf.org>; Wed, 18 Dec 2019 11:38:34 +0100
Received: from pisaure.intra.cea.fr (localhost [127.0.0.1]) by localhost (Postfix) with SMTP id F000A206C08 for <its@ietf.org>; Wed, 18 Dec 2019 11:38:33 +0100 (CET)
Received: from muguet1-smtp-out.intra.cea.fr (muguet1-smtp-out.intra.cea.fr [132.166.192.12]) by pisaure.intra.cea.fr (Postfix) with ESMTP id E627E206805 for <its@ietf.org>; Wed, 18 Dec 2019 11:38:33 +0100 (CET)
Received: from [10.8.35.150] (is154594.intra.cea.fr [10.8.35.150]) by muguet1-sys.intra.cea.fr (8.14.7/8.14.7/CEAnet-Internet-out-4.0) with ESMTP id xBIAcXD5021359 for <its@ietf.org>; Wed, 18 Dec 2019 11:38:33 +0100
From: Alexandre Petrescu <alexandre.petrescu@gmail.com>
To: "its@ietf.org" <its@ietf.org>
References: <e8a25961-5ac9-d35e-77dd-bf86f45cd077@gmail.com>
Message-ID: <fb4d8076-11db-d130-898e-036f5a6df0d7@gmail.com>
Date: Wed, 18 Dec 2019 11:38:33 +0100
User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.3.0
MIME-Version: 1.0
In-Reply-To: <e8a25961-5ac9-d35e-77dd-bf86f45cd077@gmail.com>
Content-Type: text/plain; charset=utf-8; format=flowed
Content-Language: fr
Content-Transfer-Encoding: 7bit
Archived-At: <https://mailarchive.ietf.org/arch/msg/its/nS-AY54hJo9dFoT99wKVO14xkiM>
Subject: [ipwave] About OCB patch for ath10k driver on linux
X-BeenThere: its@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: IPWAVE - IP Wireless Access in Vehicular Environments WG at IETF <its.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/its>, <mailto:its-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/its/>
List-Post: <mailto:its@ietf.org>
List-Help: <mailto:its-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/its>, <mailto:its-request@ietf.org?subject=subscribe>
X-List-Received-Date: Wed, 18 Dec 2019 10:38:39 -0000

Hi, IPWAVErs,

I would like to know whether someone else works on an OCB patch for ath10k?

We work on a patch file for OCB mode for ath10k driver for  linux.

An OCB patch for ath10k would allow to get more bandwidth.  One could 
get more bandwidth than the 16mbit/s of 802.11p by linking two to five 
channels even with just an ath9k driver (for which exist OCB patches). 
But with ath10k there might be other advantages and even higher bandwidth.

An OCB patch for ath10k driver does not exist in the Internet.

We do not post yet our patch file because it does not work yet, and we 
do not want to vehiculate false hopes.  But I will post it end of March 
2020 at latest, at the end of the project.

The card we use is "PC ngines WL900VX - 802.11ac miniPCI Xpress Radio" 
for 35,46Eur on Amazon.  It is Made in China.  It has three antenna plugs.

The status of working is: we can add OCB mode and and configure the card 
in OCB mode.  Still there is an error "command failed (invalid argument 
(-22)" when the iw command is issued.

Our current patch file is 910 lines long and touches on many files, such 
as mac.c in folder 
openwrt-08112019/build_dir/target-arm_cortex-a9+neon_musl-1.1.12_eabi/linux-imx6/linux-4.4/drivers/net/wireless/ath/ath10k, 
and others.

Alex