[OpenWrt-Devel] ath10k-ct issues - IBSS mode

[Koen Vandeputte]

On 29.03.19 13:55, Hauke Mehrtens wrote:
> On 3/29/19 1:43 PM, Ben Greear wrote:
>>
>> On 03/29/2019 02:58 AM, Koen Vandeputte wrote:
>>> On 26.03.19 19:39, Ben Greear wrote:
>>>> On 3/26/19 6:59 AM, Koen Vandeputte wrote:
>>>>> On 26.03.19 14:50, Ben Greear wrote:
>>>>>>
>>>>>> On 03/26/2019 03:09 AM, Koen Vandeputte wrote:
>>>>>>> Hi Ben,
>>>>>>> Following our conversation from yesterday, here is a summary of
>>>>>>> all issues seen so far:
>>>>>>>
>>>>>>> Test setup:
>>>>>>>
>>>>>>> - Board: Mikrotik RB922
>>>>>>> - Hardware used: on-board QCA9882 (QCA988x),  Wave1  2x2 .ac
>>>>>>> - firmware's tested: both non-HTT and HTT flavours for qca988x
>>>>>>>
>>>>>>> Synopsis:
>>>>>>> - Setting the interface in IBSS mode results in following errors
>>>>>>> and spamming
>>>>>>> - Speed is very low (100 kbit/s) upon linking 2 devices in HT20,
>>>>>>> long GI
>>>>>> Hello,
>>>>>>
>>>>>> Do you see those SWBA overrun messages on both systems, or just one
>>>>>> of them?
>>>>>>
>>>>>> I'll work on fixing the out-of-my-tree compile for 4.20 today, as
>>>>>> well as do
>>>>>> a quick test on 4.19 to see if I see that error below.
>>>>>>
>>>>>> Thanks,
>>>>>> Ben
>>>>>>
>>>>> Hi Ben,
>>>>>
>>>>> A huge amount of then continuously:
>>>> I updated ath10k-ct (commit-id:
>>>> be5c21a82b15d28991500a28f7b2b6840356281f)
>>>>
>>>> I fixed part of the issue with 4.20 not compiling in openwrt, but the
>>>> other part appears to be
>>>> a backports issue, and I did not attempt to get that working.
>>>>
>>> Hi Ben,
>>>
>>> This is still remaining using 4.20:
>>>
>>> make[4]: Entering directory
>>> '/mnt/ramdisk/koen/firmware/builds/generic_rb922/build_dir/target-mips_24kc_musl/linux-ar71xx_mikrotik/linux-4.14.109'
>>>
>>>    CC [M]
>>> /mnt/ramdisk/koen/firmware/builds/generic_rb922/build_dir/target-mips_24kc_musl/linux-ar71xx_mikrotik/ath10k-ct-2019-03-26-be5c21a8/ath10k-4.20/mac.o
>>>
>>> /mnt/ramdisk/koen/firmware/builds/generic_rb922/build_dir/target-mips_24kc_musl/linux-ar71xx_mikrotik/ath10k-ct-2019-03-26-be5c21a8/ath10k-4.20/mac.c:
>>> In function 'ath10k_mac_register':
>>> /mnt/ramdisk/koen/firmware/builds/generic_rb922/build_dir/target-mips_24kc_musl/linux-ar71xx_mikrotik/ath10k-ct-2019-03-26-be5c21a8/ath10k-4.20/mac.c:9772:11:
>>> error: 'NL80211_EXT_FEATURE_ACK_SIGNAL_SUPPORT' undeclared (first use
>>> in this function); did you mean
>>> 'NL80211_EXT_FEATURE_DATA_ACK_SIGNAL_SUPPORT'?
>>>             NL80211_EXT_FEATURE_ACK_SIGNAL_SUPPORT);
>>>             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>>>             NL80211_EXT_FEATURE_DATA_ACK_SIGNAL_SUPPORT
>>> /mnt/ramdisk/koen/firmware/builds/generic_rb922/build_dir/target-mips_24kc_musl/linux-ar71xx_mikrotik/ath10k-ct-2019-03-26-be5c21a8/ath10k-4.20/mac.c:9772:11:
>>> note: each undeclared identifier is reported only once for each
>>> function it appears in
>> I think you will need to go back to 4.19 based driver, or add a hack to
>> #ifdef that code out while compiling
>> in openwrt.
>>
>> I did a brief test with the 4.19 ct driver and it seems to work OK in my
>> test setup.  Since it appears openwrt
>> will be stuck on 4.19 for a while, I'll put some more effort into
>> keeping my 4.19 tree up to date.
>>
>> Also, I found a nasty bug with mgt frames in htt-mgt mode yesterday, and
>> uploaded new beta firmware to my
>> web page...will post csums and such to this list later today.
>>
>> Thanks,
>> Ben
>>
>>
> Hi,
>
> I have a more recent mac80211 framework from kernel 5.1-rc2 in my
> feature branch:
> https://git.openwrt.org/?p=openwrt/staging/hauke.git;a=shortlog;h=refs/heads/mac80211-5.0
> I plan to merge this after the next release is branched off.
>
> You could try that with ath10k-ct from kernel 4.20.
>
> Hauke
Hi All,

I tested Hauke's idea but it didn't work:
Latest mac80211 5.1-rc2 + ath10k-ct (4.19) --> Still the same errors as 
described initially (tried both CT firmware flavours - see bootlog below 
for details)
Latest mac80211 5.1-rc2 + ath10k-ct (4.20) --> Compile error regarding 
blockack ..

So basically .. IBSS functionality died along the way.
I recall I tested it roughly 1.5 years ago and it worked beautifully then.


Full bootlog: https://pastebin.com/RBSa1Zxf


Regards,

Koen





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