[OpenWrt-Devel] ath10k-ct 4.19 and IBSS

[Ben Greear]

On 6/26/19 2:02 AM, Koen Vandeputte wrote:
> 
> On 25.06.19 15:54, Ben Greear wrote:
>>
>>
>> On 06/25/2019 02:53 AM, Koen Vandeputte wrote:
>>>
>>> On 24.06.19 22:04, Ben Greear wrote:
>>>> On 6/24/19 8:32 AM, Koen Vandeputte wrote:
>>>>> Hi Ben,
>>>>> Hi All,
>>>>>
>>>>> So I'm going to give this another try ..
>>>>> As the IBSS functionality is heavily advertised as a delta to mainline, it would be very nice to get it working also :)
>>>>>
>>>>> Testing the latest ath10k-ct driver and firmware seems to be a step back compared to roughly a month ago.
>>>>>
>>>>> I'm currently seeing the firmware crashing, which was not the case before:
>>>>>
>>>>>
>>>>> ath10k-ct + htt-fw:
>>>>>
>>>>> https://pastebin.com/raw/7Sy9yx6s
>>>>
>>>> Looks like firmware ran out of some WMI event buffers and crashed instead of handling
>>>> it more gracefully.
>>>>
>>>> Please try the attached (untested) firmware and see if it behaves better.
>>>>
>>> Hi Ben,
>>>
>>> 1 step forward here.
>>>
>>> I'm not seeing crashes anymore using the test-firmware.
>>>
>>> https://pastebin.com/raw/4ZeXu7iw
>>>
>>>
>>> I've linked up 2 IBSS devices (wave 1, VHT80)
>>>
>>> OLSR traffic (UDP) works and packets here are nicely going back & forth.
>>>
>>> Simply pinging (ICMP) between the 2 devices does not work.
>>>
>>> When sending 100 pings, (64 byte large)  sometimes 1 gets through .. but with a latency of > 500ms
>>>
>>>
>>> I think if the splat and the beacon spam below could be fixed .. this would be a major step forward:
>>>
>>> [   30.328423] ------------[ cut here ]------------
>>> [   30.333251] WARNING: CPU: 0 PID: 1578 at 
>>> /mnt/ramdisk/koen/firmware/builds/generic_rb922/build_dir/target-mips_24kc_musl/linux-ar71xx_mikrotik/ath10k-ct-2019-05-08-f98b6dc4/ath10k-4.19/mac.c:6563 
>>> ath10k_mac_vif_beacon_free+0xc7c/0x115c [ath10k_core]
>>> [   30.355636] Modules linked in: mbt ath9k ath9k_common qcserial pppoe ppp_async option cdc_mbim ath9k_hw ath10k_pci ath10k_core ath usb_wwan sierra_net 
>>> sierra rndis_host qmi_wwan pppox ppp_generic mac80211 iptable_nat iptable_mangle iptable_filter ipt_REJECT ipt_MASQUERADE ip_tables huawei_cdc_ncm ftdi_sio 
>>> cfg80211 cdc_subset cdc_ncm cdc_ether xt_time xt_tcpudp xt_state xt_nat xt_multiport xt_mark xt_mac xt_limt
>>> [   30.427331]  nls_utf8 nls_iso8859_1 nls_cp437 authenc ehci_platform sd_mod scsi_mod ehci_hcd gpio_button_hotplug ext4 mbcache jbd2 usbcore nls_base 
>>> usb_common ptp pps_core mii aead crypto_null cryptomgr crc32c_generic crypto_hash
>>> [   30.448017] CPU: 0 PID: 1578 Comm: wpa_supplicant Not tainted 4.14.129 #0
>>
>> Please look in your code and let me know the source around the line in mac.c (6563) that is splatting.
>>
>> Also, you might grab the latest ath10k-ct repo, it has a tweak that might fix the SWBA overrun
>> messages.
>>
>> https://github.com/greearb/ath10k-ct
>>
>> Thanks,
>> Ben
>>
> Hi Ben,
> 
> Here is the output based on the latest git HEAD of your ct tree, combined with the test firmware:
> 
> https://pastebin.com/raw/kwC6c18J

Hello,

The splat decode does not match the source code, so I'm not which is correct.

[   32.341077] ------------[ cut here ]------------
[   32.345898] WARNING: CPU: 0 PID: 1470 at 
/mnt/ramdisk/koen/firmware/builds/generic_rb922/build_dir/target-mips_24kc_musl/linux-ar71xx_mikrotik/ath10k-ct-2019-06-13-f0aa8130/ath10k-4.19/mac.c:6581 
ath10k_mac_vif_beacon_free+0xc54/0x112c [ath10k_core]

(line 6581 is not in the mac_vif_beacon_free method).

Also, please enable the firmware DBGLOG logging per instructions here:

http://www.candelatech.com/ath10k-bugs.php

This is the suggested level to debug at:  0xc0000032

Thanks,
Ben


-- 
Ben Greear <greearb at candelatech.com>
Candela Technologies Inc  http://www.candelatech.com


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