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* [ath9k-devel] Progress on Ath9k HT support on Adhoc mode
@ 2011-02-15  9:05 Baldomero Coll
  2011-02-15  9:10 ` Sagar Bijwe
  2011-02-16 12:16 ` Mohammed Shafi
  0 siblings, 2 replies; 39+ messages in thread
From: Baldomero Coll @ 2011-02-15  9:05 UTC (permalink / raw)
  To: ath9k-devel

Hello,

Can you please tell me how do you select one o two antennas?

I'm using a similar setting than you:
Linux kernel: 2.6.32-28-generic-pae.
Driver: compat-wireless-2011-01-17 and iw-0.9.21 with the patch suggested by
Alex.
Radio card: Ubiquiti SR71x

Thanks in advance,
Baldomero

>
> 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).
>
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* [ath9k-devel] Progress on Ath9k HT support on Adhoc mode
@ 2011-03-22 10:13 Baldomero Coll
  0 siblings, 0 replies; 39+ messages in thread
From: Baldomero Coll @ 2011-03-22 10:13 UTC (permalink / raw)
  To: ath9k-devel

>
>
> Message: 4
> Date: Mon, 7 Mar 2011 15:49:02 -0600
> From: Xianghua Xiao <xiaoxianghua@gmail.com>
> Subject: Re: [ath9k-devel] Progress on Ath9k HT support on Adhoc mode
> To: simon_alex at web.de
> Cc: ath9k-devel at lists.ath9k.org
> Message-ID:
>        <AANLkTi=DTzrGDa60wPBsAgqXDZ--wiJC9qKK3KTf8Dk6@mail.gmail.com>
> Content-Type: text/plain; charset=UTF-8
>
> Will there be a new version of IBSS/HT patch in the near future?
> Thanks,
>

Can anyone  tell me which 802.11n features are used when the HT IBSS network
is configured with 20 MHz band with?
As far as I know, the frame aggregation (AMSDU, AMPDU) is not working yet
(either in HT40, or in HT20 mode). Obviously, HT20 does not use 40MHz
channel. When I configure my HT20 IBSS network using the Alex and Benoit's
path, I don't experience 802.11n performance, the throughput is even lower
than that achieved with legacy IBSS network. Should the MCS0-15 data rates
also be working in addition to the MIMO technology?

thanks,
Baldo
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* [ath9k-devel] Progress on Ath9k HT support on Adhoc mode
@ 2011-03-10  8:41 Baldomero Coll
  0 siblings, 0 replies; 39+ messages in thread
From: Baldomero Coll @ 2011-03-10  8:41 UTC (permalink / raw)
  To: ath9k-devel

>
> Will there be a new version of IBSS/HT patch in the near future?
> Thanks,
>
> Can you tell us something in advance about the new features thal will
appear in the IBSS/HT patch that you are announcing?

Thanks, baldo
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* [ath9k-devel] Progress on Ath9k HT support on Adhoc mode
@ 2011-02-18 18:49 Baldomero Coll
  2011-03-07 21:49 ` Xianghua Xiao
  2011-03-08  5:25 ` Mohammed Shafi
  0 siblings, 2 replies; 39+ messages in thread
From: Baldomero Coll @ 2011-02-18 18:49 UTC (permalink / raw)
  To: ath9k-devel

Has anyone of you been able to capture the frames generated withing the HT
IBSS network?

I'm using Wireshark wireshark 1.2.7 and kismet 2011-01, and there is no way
of captruring the data frames, although the beacons are well captured.
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* [ath9k-devel] Progress on Ath9k HT support on Adhoc mode
@ 2011-02-10 12:04 Baldomero Coll
  2011-02-10 14:11 ` Mohammed Shafi
  0 siblings, 1 reply; 39+ messages in thread
From: Baldomero Coll @ 2011-02-10 12:04 UTC (permalink / raw)
  To: ath9k-devel

Hi all,

I'm also testing the patch Alex and Benoit have released for the community.
After configuring my IBSS network, the station dump command shows this [1].
As you can see, although the IBSS network has been created in HT mode, one
link doesn't seem to support MCS rates.
I would like to know if it is possible to force the MCS scheme. I don't know
why the "NL80211_TXRATE_MCS" parameter is not defined in the bitrates.c
(iw), or what I have to do to enable it.

I also wonder what rate control mechanism is been used in HT mode (minstrel
HT?), and whether such mechanism switches to non HT rates when the channel
quality is bad.

I have been using wireshark to capture data transmissions between 2 PCs
configured in IBSS HT mode. What I see in the radiotap header is that no HT
information is available (protocol, data rate). Do you know how the HT
information can be added to the ratiotap header?

Thanks for your help
Baldo


[1]
----------------------------------------------------------------------------------------------------------------------------------------
sudo iw dev wlan0 station dump
Station xx:xx:xx:xx:xx:xx (on wlan0)
    inactive time:    8392 ms
    rx bytes:    2476336
    rx packets:    2149
    tx bytes:    433552
    tx packets:    1228
    tx retries:    564
    tx failed:    0
    signal:      -27 dBm
    signal avg:    -28 dBm
    tx bitrate:    270.0 MBit/s MCS 14 40Mhz short GI
Station xx:xx:xx:xx:xx:xx (on wlan0)
    inactive time:    200 ms
    rx bytes:    27577
    rx packets:    434
    tx bytes:    803
    tx packets:    8
    tx retries:    2
    tx failed:    0
    signal:      -26 dBm
    signal avg:    -26 dBm
    tx bitrate:    6.5 MBit/s MCS 0
Station xx:xx:xx:xx:xx:xx (on wlan0)
    inactive time:    96 ms
    rx bytes:    692528
    rx packets:    18938
    tx bytes:    2979324
    tx packets:    2001
    tx retries:    3340
    tx failed:    0
    signal:      -33 dBm
    signal avg:    -33 dBm
    tx bitrate:    54.0 MBit/s
----------------------------------------------------------------------------------------------------------------------------------------
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* [ath9k-devel]  Progress on Ath9k HT support on Adhoc mode
@ 2011-02-08 16:00 le thanh son
  0 siblings, 0 replies; 39+ messages in thread
From: le thanh son @ 2011-02-08 16:00 UTC (permalink / raw)
  To: ath9k-devel

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<peizhao.research@gmail.com>  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



      

^ permalink raw reply	[flat|nested] 39+ messages in thread
* [ath9k-devel] Progress on Ath9k HT support on Adhoc mode
@ 2010-12-03  5:30 Peizhao Hu
  2010-12-03  6:51 ` Mohammed Shafi
                   ` (2 more replies)
  0 siblings, 3 replies; 39+ messages in thread
From: Peizhao Hu @ 2010-12-03  5:30 UTC (permalink / raw)
  To: ath9k-devel

Hi

Could anyone please tell me the progress on Ath9k HT support for adhoc 
mode?

On the latest OpenWRT trunk build, I can only get 22Mbps throughput with 
54Mbit/s rate.

below are my setting for the AR9220 radio.

config 'wifi-device' 'radio0'
     option 'type' 'mac80211'
     option 'macaddr' '00:0c:42:64:bf:70'
     option 'hwmode' '11na'
     option 'htmode' 'HT40-'
     list 'ht_capab' 'SHORT-GI-40'
     list 'ht_capab' 'TX-STBC'
     list 'ht_capab' 'RX-STBC1'
     list 'ht_capab' 'DSSS_CCK-40'
     option 'country' 'US'
     option 'channel' '44'
     option 'txpower' '1'

config 'wifi-iface'
     option 'device' 'radio0'
     option 'ssid' 'ath9kTest2'
     option 'encryption' 'none'
     option 'network' 'wan'
     option 'mode' 'adhoc'

-- 
regards;

Peizhao

^ permalink raw reply	[flat|nested] 39+ messages in thread
end of thread, other threads:[~2011-03-22 10:13 UTC | newest]

Thread overview: 39+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2011-02-15  9:05 [ath9k-devel] Progress on Ath9k HT support on Adhoc mode Baldomero Coll
2011-02-15  9:10 ` Sagar Bijwe
2011-02-16  0:10   ` Peizhao Hu
2011-02-16 12:16 ` Mohammed Shafi
2011-02-16 14:47   ` Baldomero Coll
2011-02-16 16:46     ` Brian Prodoehl
2011-02-17  9:05       ` Baldomero Coll
2011-02-16 17:03     ` Adrian Chadd
2011-02-17  9:27       ` Baldomero Coll
2011-02-17 16:11         ` Adrian Chadd
  -- strict thread matches above, loose matches on Subject: below --
2011-03-22 10:13 Baldomero Coll
2011-03-10  8:41 Baldomero Coll
2011-02-18 18:49 Baldomero Coll
2011-03-07 21:49 ` Xianghua Xiao
2011-03-08  5:25 ` Mohammed Shafi
2011-02-10 12:04 Baldomero Coll
2011-02-10 14:11 ` Mohammed Shafi
2011-02-10 16:45   ` Baldomero Coll
2011-02-11 10:24     ` Mohammed Shafi
2011-02-08 16:00 le thanh son
2010-12-03  5:30 Peizhao Hu
2010-12-03  6:51 ` Mohammed Shafi
2010-12-09 12:36 ` Alexander Simon
2010-12-09 18:55   ` Luis R. Rodriguez
2010-12-22  8:25   ` Robert Chan
2010-12-29  6:10     ` Robert Chan
2010-12-29 20:20       ` Brian Prodoehl
2010-12-29  6:10     ` Robert Chan
2010-12-29  6:32       ` Mohammed Shafi
2010-12-29  6:52         ` Jouni Malinen
2010-12-29  7:00           ` Mohammed Shafi
2010-12-29  7:21           ` Robert Chan
2010-12-29  8:30             ` Jouni Malinen
2011-01-19 13:42     ` Alexander Simon
2011-02-04  3:04       ` Peizhao Hu
2011-02-04  5:27         ` Mohammed Shafi
2011-02-08  3:38           ` Peizhao Hu
2011-02-10 14:07             ` Mohammed Shafi
2011-01-28  8:58 ` bcoll

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