[ath9k-devel] Weird Atheros 9485 http connecting problems

[Arkh4mKn1ght <arkh4mkn1ght@gmail.com>]

Hi

That was a nice find. I thought ASPM was disabled because i always boot 
my kernel with the
pcie_aspm=off flag. I have now disabled ASPM following the link you 
shared with me for my card but is it enough to disable ASPM on the card 
or do i have to disable it also for the root complex?

root complex: (byte 0x50 has value 42 it means L1 is enabled)
[root at localhost kernel]# lspci -s 00:1c.0 -xxx
00:1c.0 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset 
Family PCI Express Root Port 1 (rev c4)
00: 86 80 10 1e 07 00 10 00 c4 00 04 06 10 00 81 00
10: 00 00 00 00 00 00 00 00 00 07 07 00 f0 00 00 00
20: 20 c1 20 c1 51 c1 51 c1 00 00 00 00 00 00 00 00
30: 00 00 00 00 40 00 00 00 00 00 00 00 0a 01 00 00
40: 10 80 42 01 00 80 00 00 00 00 10 00 12 3c 12 01
50: 42 00 11 70 00 b2 04 00 00 00 40 01 00 00 00 00
60: 00 00 00 00 16 00 00 00 00 00 00 00 00 00 00 00
70: 02 00 01 00 00 00 00 00 00 00 00 00 00 00 00 00
80: 05 90 00 00 00 00 00 00 00 00 00 00 00 00 00 00
90: 0d a0 00 00 4d 10 ab 90 00 00 00 00 00 00 00 00
a0: 01 00 02 c8 00 00 00 00 00 00 00 00 00 00 00 00
b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
d0: 00 00 00 01 02 0b 00 00 00 80 11 81 00 00 00 00
e0: 00 3f 00 00 00 00 00 00 01 00 00 00 00 00 00 00
f0: 00 00 00 00 00 00 00 00 87 0f 04 08 00 00 00 00

[root at localhost kernel]#

Atheros card with ASPM disabled:
07:00.0 Network controller: Qualcomm Atheros AR9485 Wireless Network 
Adapter (rev 01)
     Subsystem: Foxconn International, Inc. Device e044
     Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- 
Stepping- SERR- FastB2B- DisINTx-
     Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- 
<TAbort- <MAbort- >SERR- <PERR- INTx-
     Interrupt: pin A routed to IRQ 11
     Region 0: Memory at c1200000 (64-bit, non-prefetchable) [size=512K]
     Expansion ROM@c1500000 [disabled] [size=64K]
     Capabilities: [40] Power Management version 2
         Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=375mA 
PME(D0+,D1+,D2+,D3hot+,D3cold+)
         Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
     Capabilities: [50] MSI: Enable- Count=1/4 Maskable+ 64bit+
         Address: 0000000000000000  Data: 0000
         Masking: 00000000  Pending: 00000000
     Capabilities: [70] Express (v2) Endpoint, MSI 00
         DevCap:    MaxPayload 128 bytes, PhantFunc 0, Latency L0s 
unlimited, L1 <64us
             ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset-
         DevCtl:    Report errors: Correctable- Non-Fatal- Fatal- 
Unsupported-
             RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop-
             MaxPayload 128 bytes, MaxReadReq 512 bytes
         DevSta:    CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr+ 
TransPend-
         LnkCap:    Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, Exit 
Latency L0s <4us, L1 <64us
             ClockPM- Surprise- LLActRep- BwNot-
         LnkCtl:    ASPM Disabled; RCB 64 bytes Disabled- CommClk+
             ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-

How do i make the changes permanent when booting the system ?

Greetings

Oskar

On 05/16/2014 06:06 AM, Rajkumar Manoharan wrote:
> On Thu, May 15, 2014 at 08:02:20PM -0300, Arkh4mKn1ght wrote:
>> Hi
>>
>> The problem happened again suddenly i had difficulty browsing websites.
>> When i tried to load a site the browser stays in connecting..... for some
>> minutes. After a while it does
>> load the sites but painfully slow. Pings, ssh connections work fine, but a
>> connection to smtp.gmail.com to send you this email also stayed in
>> connecting...(im using thunderbird as email client) though.
>>
>> I disabled ANI after it happened but nothing changed, the problem persisted.
>> One thing i noticed though, as soon as i disabled ANI, the ath9k statements
>> stopped to appear in the kernel log...
>>
>> I'm sending you the kernel log where it shows a lot of calibration
>> statements. the problem started more or less at 19pm.
>> Let me know if you need anything else.
>>
> Thanks for the log. ASPM is enabled for your card. Can you please disable ASPM
> and confirm the issue. Meanwhile I am going through the log and will update.
>
> Steps to disable ASPM:-
>
> http://wireless.kernel.org/en/users/Documentation/ASPM#Force_enable_or_disable_ASPM
>
> After disabling ASPM, please confirm the same in lspci -vvvv output.
>
> -Rajkumar
>