From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from smtp3.dhosting.pl ([195.88.50.61]) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1Vr4f3-00011P-29 for ath10k@lists.infradead.org; Thu, 12 Dec 2013 11:42:34 +0000 Message-ID: <52A9A10D.9000901@elnovel.com> Date: Thu, 12 Dec 2013 12:42:05 +0100 From: Tomasz Tajmajer MIME-Version: 1.0 Subject: Re: [BUG] QWLE900V5-18 - cannot achievie 3 spatial streams link References: <52A1FC69.7080901@elnovel.com> <874n6i1jk7.fsf@kamboji.qca.qualcomm.com> <52A5955E.2060106@elnovel.com> <52A5A98A.3000102@elnovel.com> <52A5B33D.7010006@elnovel.com> <52A85844.3080009@elnovel.com> In-Reply-To: List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "ath10k" Errors-To: ath10k-bounces+kvalo=adurom.com@lists.infradead.org To: Janusz Dziedzic Cc: Michal Kazior , ath10k@lists.infradead.org On 11.12.2013 20:51, Janusz Dziedzic wrote: >> Seems from driver we configure everything correctly. Rate Control is >> in FW - so FW will decide what NSS/MCS to use. Here we see our devices >> works fine with 3x3. >> >> BTW. >> You can try to use fixed_rate setting. You will have to apply some >> patches from mac80211-next/group: >> >> Kernel: >> 1) nl80211: don't clear bitrate_mask twice >> 2) nl80211: back to default bitrate_mask correctly >> 3) nl80211/cfg80211: bitrate_mask, rename mcs to ht_mcs >> 4) nl80211: add VHT support for set_bitrate_mask >> 5) ath10k: add set_bitrate_mask callback - this I will send in few minutes >> >> iw: >> 1) iw: add VHT MCS/NSS set support to set bitrates >> >> After that just run ap and: iw wlanX set bitrates legacy-5 ht-mcs-5 >> vht-mcs-5 3:0 >> >> You should send frames from AP with NSS=3, MCS=0 >> > BTW Do you have same problem with HT, or only with VHT? > > BR > Janusz > For HT 3x3 MIMO is working fine. The issue occurs only for VHT. Thank you for your suggestions, I'll apply the patches and try to force 3 spatial streams manually. Hope it will work. BTW: Which firmware and driver versions you were using in your tests ? BR TomaszT _______________________________________________ ath10k mailing list ath10k@lists.infradead.org http://lists.infradead.org/mailman/listinfo/ath10k