RE ath10k: set channel by command "iw" not from hostapd and DFS support of firmware-2.bin_10.1.467.2-1

[Vu Hai NGUYEN]

>> ath10k: wmi mgmt vdev up id 0x1 assoc id 0 bssid 04:f0:21:0e:38:be
>> ath10k: mac monitor vdev 1 started
>> ath10k: mac monitor started
>> ------------[ cut here ]------------
>> WARNING: at /home/alberix2/Desktop/Wilinks_ath10k/ACCESS_POINT_APPLI/Source/Driv
>> er_ath10k/backports-3.15-rc1-1/net/wireless/nl80211.c:5824 nl80211_start_radar_d
>> etection+0xf8/0x16c [cfg80211]()
>> Modules linked in: ath10k_pci(O) ath10k_core(O) ath(O) mac80211(O) cfg80211(O) c
>> ompat(O) arc4 ubifs ubi [last unloaded: compat]
>> Backtrace:
>> [<c0011938>] (dump_backtrace+0x0/0x118) from [<c050205c>] (dump_stack+0x18/0x20)
>>  r6:bf64b61f r5:000016c0 r4:00000000 r3:c10bc7ac
>> [<c0502044>] (dump_stack+0x0/0x20) from [<c0066c38>] (warn_slowpath_common+0x54/
>> 0x70)
>> [<c0066be4>] (warn_slowpath_common+0x0/0x70) from [<c0066c78>] (warn_slowpath_nu
>> ll+0x24/0x2c)
>>  r8:00000000 r7:00000000 r6:d2e88000 r5:d27a8000 r4:d2e883c8
>> r3:00000009
>> [<c0066c54>] (warn_slowpath_null+0x0/0x2c) from [<bf60fadc>] (nl80211_start_rada
>> r_detection+0xf8/0x16c [cfg80211])
>> [<bf60f9e4>] (nl80211_start_radar_detection+0x0/0x16c [cfg80211]) from [<c045348
>> 8>] (genl_rcv_msg+0x1b4/0x1f4)
>> [<c04532d4>] (genl_rcv_msg+0x0/0x1f4) from [<c0452904>] (netlink_rcv_skb+0x58/0x
>> b8)
>> [<c04528ac>] (netlink_rcv_skb+0x0/0xb8) from [<c04532c4>] (genl_rcv+0x20/0x30)
>>  r6:d318fe00 r5:d29afb00 r4:d29afb00 r3:c04532a4
>> [<c04532a4>] (genl_rcv+0x0/0x30) from [<c04522d0>] (netlink_unicast+0x224/0x2c4)
>>  r4:d0074400 r3:c04532a4
>> [<c04520ac>] (netlink_unicast+0x0/0x2c4) from [<c04526a4>] (netlink_sendmsg+0x29
>> 0/0x320)
>> [<c0452414>] (netlink_sendmsg+0x0/0x320) from [<c0428eac>] (sock_sendmsg+0x98/0x
>> b4)
>> [<c0428e14>] (sock_sendmsg+0x0/0xb4) from [<c0429150>] (__sys_sendmsg+0x1d0/0x26
>> c)
>>  r4:d2b9bf64
>> [<c0428f80>] (__sys_sendmsg+0x0/0x26c) from [<c042ab30>] (sys_sendmsg+0x44/0x68)
>> [<c042aaec>] (sys_sendmsg+0x0/0x68) from [<c000ddc0>] (ret_fast_syscall+0x0/0x30
>> )
>>  r6:00134870 r5:4008f9f0 r4:00136660
>> ---[ end trace 4c6338919fa0b3d6 ]---
> Warning is about cac_time = 0 - this is not a problem at all.

But if it's normal the minimum value send back from driver must be 60s ? I still not find where this data is get from to write to the file /net/wireless/regdb.c

>> My iw dev show : channel 52 (5260 MHz), width: 20 MHz, center1: 5260 MHz  but I can not connect my station to the access point (seems it does not work yet cause the file "dfs_stats" still show "DFS not enabled" . I had a debug msg with debug mask = 0x432 for ath10k in the attached file if someone are interested in.
>>
> After cac_time you should see beacons in airlogs. Does you station see
> this AP in scan results? Does your station support this channel (iw
> list on sta side)?

My Station can see the network but it is not stable (some time it appear in the scan result, then I refresh it gets lost and appears later if I re-scan). And I cannot connect to it.

>BTW "DFS not enabled" means DFS region you have in regdb is not
>supported by patter detector. Probably you don't have DFS region at
>all? Add to debug mask ATH10K_DBG_REGULATORY,

This msg may be interested with you? :D. It shows that my DFS master region is ETSI

ath10k: failed to initialise DFS pattern detector                               
cfg80211: Calling CRDA for country: FR                                          
cfg80211: Regulatory domain changed to country: FR                              
cfg80211:  DFS Master region: ETSI                                              
cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (
dfs_cac_time)                                                                   
cfg80211:   (2402000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)     
cfg80211:   (5170000 KHz - 5250000 KHz @ 80000 KHz), (N/A, 2000 mBm), (N/A)     
cfg80211:   (5250000 KHz - 5330000 KHz @ 80000 KHz), (N/A, 2000 mBm), (0 s)     
cfg80211:   (5490000 KHz - 5710000 KHz @ 80000 KHz), (N/A, 2700 mBm), (0 s)     
cfg80211:   (57240000 KHz - 65880000 KHz @ 2160000 KHz), (N/A, 4000 mBm), (N/A)

And you can say anything from this? :

ath10k: mac config channel 5280MHz flags 0x10a radar 1                          
ath10k: mac monitor refs: promisc 1 monitor 0 cac 1                             
ath10k: mac monitor already started                                             
ath10k: mac cac start monitor vdev 1                                            
ath10k: mac config channel to 5280MHz (cf1 5280MHz cf2 0MHz width 20)           
ath10k: wmi mgmt vdev down id 0x1                                               
ath10k: wmi vdev stop id 0x1                                                    
ath10k: WMI_VDEV_STOPPED_EVENTID                                                
ath10k: mac monitor vdev 1 stopped                                              
ath10k: mac monitor refs: promisc 1 monitor 0 cac 1                             
ath10k: wmi vdev start id 0x1 flags: 0x0, freq 5280, mode 4, ch_flags: 0x404, max_power: 40                                                                     
ath10k: WMI_VDEV_START_RESP_EVENTID                                             
ath10k: wmi mgmt vdev up id 0x1 assoc id 0 bssid 04:f0:21:0e:38:be              
ath10k: mac monitor vdev 1 started                                                                                                 

NGUYEN Vu Hai
Acita-Sodielec
Route de Mayres - B.P. 9
12100 St GEORGES DE LUZENCON
FRANCE