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 Mon, 2021-04-19 at 19:16 +0100, Philip Stewart wrote:
> 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?

I would expect that yeah. My only guess is that broadcom-wl is a
fullmac driver that doesn't set this and handles everything in the
firmware. You could see what extended features and commands it
advertises with 'iw list' to verify.

> 
> 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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> 
>