[ath9k-devel] has anyone done 9280's 1x1 test?

[kang haiyang <hykang@dongniannetworks.com>]

On 05/11/2011 02:30 PM, Adrian Chadd wrote:
> I'm not sure what you're talking about when you say "chainmask 2" on the AP.
   ok. this is a word in my AP driver.  in datasheet, maybe same with
chain_sel_x,
   which specifies the active chain in the tx descriptor.
> How many antennas does your AP have?
  only one,  but i can add. 
 for this test,  i connect ap and client with one cable with 50dbm
attenuation.
> How are you configuring the chainmask and chain?
 on ap, i change my driver directly.
 on client, i use ath9k's debugfs interface, which contains tx_chainmask
and rx_chainmask.
>
> Adrian
>
> On 11 May 2011 13:42, kang haiyang <hykang@dongniannetworks.com> wrote:
>> hi,
>>
>>  I connected my AP with client by cable,  both of them use 9280 card.
>>   AP's driver is madwifi with proprietary hal, client with ath9k driver
>> on ubuntu 10.10.
>>  I have done a few test for this 1x1 configuration.
>>
>>   from the result i saw if AP is set with chainmask 2, the traffic is
>> almost down,
>>   and chain 1 vs chain 2 is a little worse than chain 1 vs chain1.
>>   Am i wrong with some bad configurations for this card?
>>
>> Following is the result:
>>
>>  (5Ghz, 40Mhz, Cable connection between AP and client, iperf tcp)
>>
>> 1. AP chainmask(tx/rx) 1 , client chainmask(tx/rx) 1
>>   - AP Rx   100Mbps
>>   - AP Tx   90Mbps
>>
>> 2. AP chainmask 1 , client chainmask 2
>>    - AP Rx   50Mbps
>>    - AP Tx   90Mbps
>>
>> 3. AP chainmask 2 , client chainmask 2
>>    - AP Rx   0
>>    - AP Tx   0
>>
>> 4. AP chainmask 2 , client chainmask 1
>>   - AP Rx   0
>>   - AP Tx   0
>>
>> best regards,
>> kang haiyang
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