From mboxrd@z Thu Jan 1 00:00:00 1970 From: le thanh son Date: Tue, 8 Feb 2011 08:00:38 -0800 (PST) Subject: [ath9k-devel] Progress on Ath9k HT support on Adhoc mode Message-ID: <233164.93895.qm@web45215.mail.sp1.yahoo.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: ath9k-devel@lists.ath9k.org Dear All I have added the patch of HT support in adhoc mode by Alex to compat-wireless-2011-01-24 and other patch on iw tool. My radio card is AR9220 on AR71xx processor board. The set up is as following: iw phy phy0 interface add wlan01 type ibss ifconfig wlan01 up iw wlan01 ibss join test2 5745 HT40+ There are some issues as follows: 1. It could not get higher MCS. Normally just MCS0 Station 00:xx:xx:xx:xx:ee (on wlan01) inactive time: 300 ms rx bytes: 63190 rx packets: 1173 tx bytes: 11724 tx packets: 100 tx retries: 0 tx failed: 0 signal: -51 dBm signal avg: -52 dBm tx bitrate: 6.5 MBit/s MCS 0 2. I tested throughput by iperf, tcp, it shows very low throughput, just about 1.3 Mbps. It means the lowest bit rate is in operation, not higher bit rate (such as MCS 15) Please not that if I change to AP-STA mode, then immediately the higher MCS schemes activated (normally MCS15), so the signal is quite good. 3. Although I just set up 1 point to point link and expected only ONE adhoc station shown in the output of iw dev wlan0 station dump. But in fact it shows more than one stations ?! root at OpenWrt:/# iw dev wlan01 station dump Station 00:xx:xx:xx:xx:22 (on wlan01) inactive time: 42740 ms rx bytes: 229 rx packets: 2 tx bytes: 0 tx packets: 0 tx retries: 0 tx failed: 0 signal: -51 dBm signal avg: -50 dBm tx bitrate: 6.0 MBit/s Station 00:xx:xx:xx:xx:10 (on wlan01) inactive time: 24060 ms rx bytes: 470 rx packets: 4 tx bytes: 0 tx packets: 0 tx retries: 0 tx failed: 0 signal: -50 dBm signal avg: -51 dBm tx bitrate: 6.0 MBit/s Station 00:xx:xx:xx:xx:f5 (on wlan01) inactive time: 0 ms rx bytes: 7254 rx packets: 1499 tx bytes: 3412532 tx packets: 2411 tx retries: 0 tx failed: 0 signal: -52 dBm signal avg: -52 dBm tx bitrate: 6.0 MBit/s Station 00:xx:xx:xx:xx:ee (on wlan01) inactive time: 300 ms rx bytes: 63190 rx packets: 1173 tx bytes: 11724 tx packets: 100 tx retries: 0 tx failed: 0 signal: -51 dBm signal avg: -52 dBm tx bitrate: 6.5 MBit/s MCS 0 root at OpenWrt:/# iw dev wlan01 link Joined IBSS 02:xx:xx:xx:xx:45 (on wlan01) SSID: test2 freq: 5745 The question is whether I set up correctly ? How should I set up ? Thanks in advance Le >Hi all, >I would like to confirm my findings. My test platform configurations are >follow. >Board: pcengine alix3d2 >Linux kernel: 2.6.35 from linux-wireless git >Driver: compat-wireless-2011-01-17 and iw-0.9.21 with the patch >suggested by Alex. >Radio card: Ubiqiti SR71a on channel 36 with HT40+ >Measurement tool and settings: Iperf, UDP, 100Mb offered load >Recored throughput: 50-54Mbps (one antenna); 78-80Mbps (two or three >antennas). >Any one have idea how I can achieve 100Mbps+ throughput with my current >setup? >By the way, I tried to the "[PATCH 1/1] compat-wireless: Fix ath9k debug >log issue" patch. However, I am still getting these error logs. >[ 228.982367] cfg80211: Found new beacon on frequency: 5180 MHz (Ch 36) >on phy0 >[ 229.699391] cfg80211: Found new beacon on frequency: 5745 MHz (Ch >149) on phy0 >[ 229.853470] cfg80211: Found new beacon on frequency: 5805 MHz (Ch >161) on phy0 >[ 231.971055] wlan0: Trigger new scan to find an IBSS to join >[ 232.108921] ath: ce24be20 >[ 232.112313] ath: ce24be48 >[ 232.127773] ath: ce24be04 >[ 232.200898] ath: ce24be20 >[ 232.204872] ath: ce24be48 >[ 232.220331] ath: ce24be04 >[ 232.292898] ath: ce24be20 >[ 232.296855] ath: ce24be48 >[ 232.312308] ath: ce24be04 >[ 232.384899] ath: ce24be20 [ 234.932420] wlan0: Selected IBSS BSSID ae:d9:24:0e:d9:52 based on configured SSID [ 236.433296] wlan0: no IPv6 routers present regards; Peizhao On 04/02/11 15:27, Mohammed Shafi wrote: > On Fri, Feb 4, 2011 at 8:34 AM, Peizhao Hu wrote: >> Hi Alex, >> >> I am testing the patch. I got the following dmesg message. >> >> I am using compat-wireless-2011-01-17.tar.bz2 and iw-0.9.21.tar.bz2 with >> both patches. The linux kernel is 2.6.35 from linux-wireless. >> >> [ 7549.786227] wlan0: No active IBSS STAs - trying to scan for other >> IBSS networks with same SSID (merge) >> [ 7549.925224] ath: cf559e20 >> [ 7549.928625] ath: cf559e48 >> [ 7549.944108] ath: cf559e04 >> [ 7550.073159] ath: cf559e20 >> [ 7550.077125] ath: cf559e48 >> [ 7550.092581] ath: cf559e04 >> [ 7550.277151] ath: cf559e20 >> [ 7550.281123] ath: cf559e48 >> [ 7550.296581] ath: cf559e04 >> [ 7550.369159] ath: cf559e20 >> [ 7550.373132] ath: cf559e48 >> [ 7550.388592] ath: cf559e04 >> [ 7550.461160] ath: cf559e20 >> [ 7550.465117] ath: cf559e48 >> [ 7550.480581] ath: cf559e04 >> [ 7550.553160] ath: cf559e20 >> [ 7550.557127] ath: cf559e48 >> [ 7550.572581] ath: cf559e04 >> [ 7550.701149] ath: cf559e20 >> [ 7550.705107] ath: cf559e48 >> [ 7550.720570] ath: cf559e04 >> [ 7550.793161] ath: cf559e20 >> [ 7550.797116] ath: cf559e48 >> [ 7550.812569] ath: cf559e04 >> [ 7550.885171] ath: cf559e20 >> [ 7550.889124] ath: cf559e48 >> [ 7550.904582] ath: cf559e04 > Can you please try with this patch named [PATCH 1/1] compat-wireless: > Fix ath9k debug log issue. >> regards; >> >> Peizhao >> >> >> On 19/01/11 23:42, Alexander Simon wrote: >>> Hi there, >>> >>> i just want to let you know i just released my patch for this on linux- >>> wireless. >>> http://article.gmane.org/gmane.linux.kernel.wireless.general/63191 >>> I really apreciate any tests/comments/proposals on this! >>> >>> Regards, Alex >>> >>> Am Mittwoch, 22. Dezember 2010, 09:25:39 schrieb Robert Chan: >>>> Hi All, >>>> >>>> May I ask whether the HT support (for Adhoc) is already in the trunk? >>>> >>>> Thanks. >>>> >>>> Regards, >>>> >>>> Robert