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

[James Prestwood <prestwoj@gmail.com>]

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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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