Re: DEL_INTERFACE and CMD_SET_CQM failed; Could not register frame watch type 00d0: -95

[Philip Stewart <philip.stewart.public@gmail.com>]

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Hi James,

Thanks for the clarification around DEL_INTERFACE/CQM, that's 
reassuring and makes sense!

On the MAC address, yes - /sys/class/ieee80211/phy0/macaddress reports 
all zeros. Would you expect the wl driver to set this?

n.b. I note that '[iwd]# station wlan0 show' and '# iw wlan0 link' both 
successfully report the MAC address for the access point.

Cheers,
Phil

On Mon, 19 Apr, 2021 at 09:07, James Prestwood <prestwoj@gmail.com> 
wrote:
> Hi Philip,
> 
> On Sun, 2021-04-18 at 18:21 +0100, Philip Stewart wrote:
>>  Hello,
>> 
>>  I've recently switched from NetworkManager and wpasupplicant to
>>  systemd-networkd and iwd. Whilst everything appears to be working
>>  fine,
>>  I'm curious about some failures reported by iwd:
>> 
>>  Apr 18 15:10:32 systemd[1]: Starting Wireless service...
>>  Apr 18 15:10:33 iwd[661]: Wireless daemon version 1.12
>>  Apr 18 15:10:33 systemd[1]: Started Wireless service.
>>  Apr 18 15:10:33 iwd[661]: station: Network configuration is 
>> disabled.
>>  Apr 18 15:10:33 iwd[661]: Wiphy: 0, Name: phy0
>>  Apr 18 15:10:33 iwd[661]:         Permanent Address:
>>  00:00:00:00:00:00
>>  Apr 18 15:10:33 iwd[661]:         Bands: 2.4 GHz 5 GHz
>>  Apr 18 15:10:33 iwd[661]:         Ciphers: CCMP TKIP BIP
>>  Apr 18 15:10:33 iwd[661]:         Supported iftypes: ad-hoc station
>>  Apr 18 15:10:33 iwd[661]: DEL_INTERFACE failed: Operation not
>>  supported
>>  Apr 18 15:10:33 iwd[661]: Could not register frame watch type 00d0:
>>  -95
>>  Apr 18 15:10:33 iwd[661]: Could not register frame watch type 00d0:
>>  -95
>>  Apr 18 15:10:33 iwd[661]: Could not register frame watch type 00d0:
>>  -95
>>  Apr 18 15:10:33 iwd[661]: Could not register frame watch type 00d0:
>>  -95
>>  Apr 18 15:10:33 iwd[661]: CMD_SET_CQM failed: Operation not 
>> supported
>>  Apr 18 15:10:33 iwd[661]: Could not register frame watch type 00d0:
>>  -95
>>  Apr 18 15:10:33 iwd[661]: Could not register frame watch type 00d0:
>>  -95
>> 
>>  Further, I note that in the output of 'networkctl status wlan0', the
>>  WiFi access point MAC address is reported as 00:00:00:00:00:00 and
>>  I'm
>>  wondering if this is a consequence of these failures and if there is
>>  anything I can do about it?
> 
> I'm not familiar with the wl driver specifically but I'm guessing it
> does not support DEL_INTERFACE/CQM.
> 
> This is fine though. In the DEL_INTERFACE case IWD will just use the
> interface that already exists on the system. Effectively
> [General].UseDefaultInterface=true.
> 
> CQM is also ok as the driver (presumably) manages low RSSI itself and
> will roam on its own. At least this is what I would expect.
> 
> We pull the permanent address from
> /sys/class/ieee80211/<phy>/macaddress. Is that reporting zero's?
> 
> Thanks,
> James
> 
>> 
>>  Kind regards,
>>  Phil
>> 
>>  # lspci -vv -d 14e4:
>>  03:00.0 Network controller: Broadcom Inc. and subsidiaries BCM4322
>>  802.11a/b/g/n Wireless LAN Controller (rev 01)
>>  	Subsystem: Apple Inc. AirPort Extreme
>>  	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-
>>  	Latency: 0, Cache Line Size: 256 bytes
>>  	Interrupt: pin A routed to IRQ 20
>>  	Region 0: Memory at d3200000 (64-bit, non-prefetchable)
>>  [size=16K]
>>  	Capabilities: [40] Power Management version 3
>>  		Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA
>>  PME(D0+,D1-,D2-,D3hot+,D3cold+)
>>  		Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=2 PME-
>>  	Capabilities: [58] Vendor Specific Information: Len=78 <?>
>>  	Capabilities: [e8] MSI: Enable- Count=1/1 Maskable- 64bit+
>>  		Address: 0000000000000000  Data: 0000
>>  	Capabilities: [d0] Express (v1) Endpoint, MSI 00
>>  		DevCap:	MaxPayload 128 bytes, PhantFunc 0, Latency
>>  L0s <4us, L1
>>  unlimited
>>  			ExtTag+ AttnBtn- AttnInd- PwrInd- RBE+ FLReset-
>>  SlotPowerLimit 0.000W
>>  		DevCtl:	CorrErr- NonFatalErr- FatalErr- UnsupReq-
>>  			RlxdOrd- ExtTag+ PhantFunc- AuxPwr- NoSnoop-
>>  			MaxPayload 128 bytes, MaxReadReq 128 bytes
>>  		DevSta:	CorrErr- NonFatalErr- FatalErr- UnsupReq-
>>  AuxPwr- TransPend-
>>  		LnkCap:	Port #0, Speed 2.5GT/s, Width x1, ASPM L0s
>>  L1, Exit Latency
>>  L0s <4us, L1 <64us
>>  			ClockPM+ Surprise- LLActRep- BwNot-
>>  ASPMOptComp-
>>  		LnkCtl:	ASPM L0s L1 Enabled; RCB 64 bytes, Disabled-
>>  CommClk+
>>  			ExtSynch- ClockPM+ AutWidDis- BWInt- AutBWInt-
>>  		LnkSta:	Speed 2.5GT/s (ok), Width x1 (ok)
>>  			TrErr- Train- SlotClk+ DLActive- BWMgmt-
>>  ABWMgmt-
>>  	Capabilities: [100 v1] Advanced Error Reporting
>>  		UESta:	DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt-
>>  UnxCmplt- RxOF-
>>  MalfTLP- ECRC- UnsupReq- ACSViol-
>>  		UEMsk:	DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt-
>>  UnxCmplt- RxOF-
>>  MalfTLP- ECRC- UnsupReq- ACSViol-
>>  		UESvrt:	DLP+ SDES- TLP- FCP+ CmpltTO- CmpltAbrt-
>>  UnxCmplt- RxOF+
>>  MalfTLP+ ECRC- UnsupReq- ACSViol-
>>  		CESta:	RxErr- BadTLP- BadDLLP- Rollover- Timeout-
>>  AdvNonFatalErr-
>>  		CEMsk:	RxErr- BadTLP- BadDLLP- Rollover- Timeout-
>>  AdvNonFatalErr+
>>  		AERCap:	First Error Pointer: 00, ECRCGenCap+
>>  ECRCGenEn- ECRCChkCap+
>>  ECRCChkEn-
>>  			MultHdrRecCap- MultHdrRecEn- TLPPfxPres-
>>  HdrLogCap-
>>  		HeaderLog: 00000000 00000000 00000000 00000000
>>  	Capabilities: [13c v1] Virtual Channel
>>  		Caps:	LPEVC=0 RefClk=100ns PATEntryBits=1
>>  		Arb:	Fixed- WRR32- WRR64- WRR128-
>>  		Ctrl:	ArbSelect=Fixed
>>  		Status:	InProgress-
>>  		VC0:	Caps:	PATOffset=00 MaxTimeSlots=1
>>  RejSnoopTrans-
>>  			Arb:	Fixed- WRR32- WRR64- WRR128- TWRR128-
>>  WRR256-
>>  			Ctrl:	Enable+ ID=0 ArbSelect=Fixed TC/VC=ff
>>  			Status:	NegoPending- InProgress-
>>  	Capabilities: [160 v1] Device Serial Number xx-xx-xx-xx-xx-xx-
>>  xx-xx
>>  	Capabilities: [16c v1] Power Budgeting <?>
>>  	Kernel driver in use: wl
>>  	Kernel modules: ssb, wl
>> 
>> 
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