[ath9k-devel] Weird Atheros 9485 http connecting problems

[Arkh4mKn1ght <arkh4mkn1ght@gmail.com>]

On 05/19/2014 03:29 AM, Rajkumar Manoharan wrote:
> On Sun, May 18, 2014 at 09:29:08PM -0300, Arkh4mKn1ght wrote:
>> Hi
>>
>> I'm still testing but the issue reappeared again with the ASPM disabled on
>> the card. This ocurred after starting the computer from hibernation and as i
>> mentioned before ASPM was disabled only on the card and not on the root
>> complex. I found these messages on the log:
>>
>> May 18 10:42:56 localhost kernel: mei_me 0000:00:16.0: suspend
>> May 18 10:42:57 localhost kernel: ath: phy0: RX failed to go idle in 10 ms
>> RXSM=0xdeadbeef
>> May 18 10:42:57 localhost kernel: ath: phy0: DMA failed to stop in 10 ms
>> AR_CR=0xdeadbeef AR_DIAG_SW=0xdeadbeef DMADBG_7=0xdeadbeef
>>
>> After rebooting the computer everything worked fine again.
>>
>> Now i have disabled ASPM on both the root complex and the atheros card so
>> i'm still testing to see if the issue happens again. until now (7+ hours
>> everything is fine).
>> I will let you know if the issue reappears after these changes
>>
> Oskar,
>
> Generally the boot argument pcie_aspm=off disables ASPM in both root
> complex and device. Im not sure why it is not working in your m/c. I
> think there could be some option in BIOS to disable PCI powersave.
> Please check that.
>
> Can you please test with attached patch?
>
> -Rajkumar

Rajkumar, yeah i also thought using pcie_aspm=off would disable ASPM 
completely, so i dont know what is going on. My laptop is a sony vaio 
SVE model, and it has a crappy BIOS designed specialy
for windows 8 and all that UEFI crap. Las time i checked the BIOS it was 
really a simple one, not many options to deal with, but i will check 
again if the issue reappears and try the patch. Until now everything is 
fine with ASPM disabled on both the root complex and wifi card.(ath9k is 
loaded with ps_enable=1)

Btw as i said in a previous email, if ASPM is disabled completely, 
leaving powersave mode on for the ath9k module meaningless? in other 
words would powersave work with ASPM disabled but ath9k module loaded 
with ps_enable=1 ?

Greetings
Oskar