[ath9k-devel] performance with ath9k, sparklan WPEA-127N, and Macbook pro

[Felix Fietkau <nbd@openwrt.org>]

On 2013-06-20 6:05 PM, Adam Allred wrote:
> Hello,
> 
> I am attempting to build an AP that can support airplay streaming
> between various mac devices. My current test bed is as follows:
> 
> Macbook Pro 10,2 (13" Retina), with an Airport Extreme (0x14E4, 0x10F)
> card, which is using the BCM43xx driver (according to system report).
> Apple TV Gen 3 (no idea what the wireless hardware in it is)
> 
> A Jetway Mini-top:
> 
> http://www.newegg.com/Product/Product.aspx?Item=N82E16856107081
> 
> It's running fully patched debian stable (wheezy), amd64.
> 
> I have replaced the stock PCI Express wireless card with a SparkLan WPEA-127N:
> 
> http://www.sparklan.com/product.php?func=view&prod_id=181
> 
> and added two antennas to the top of the case utilizing these:
> 
> http://www.embeddedworks.net/pdetail.php?mn=assy&prod=assy085
> http://www.embeddedworks.net/pdetail.php?mn=ante&prod=ante542
> 
> The darn WPEA-127N came world-roaming burned in to the EEPROM, so I
> modified the ath9k driver from the stock debian wheezy driver using:
> 
> https://patchwork.kernel.org/patch/2249511/
> 
> (thanks Ben)
> 
> and for good measure, also updated regulatory.bin for crda to map
> regdomain 0 to the US (where I'm at).
> 
> Finally, my modprobe settings for ath9k are:
> 
> options ath9k override_eeprom_regdomain=0
> options ath9k nohwcrypt=1
Using nohwcrypt=1 is a bad idea and might explain your performance
issues. Where did you get that from?

- Felix