Re: Qualcomm Atheros QCA6174 monitoring mode receiving no data

[Patrick Daume <patrick.daume@dedrone.com>]

I build the kernel: 5.1.0-rc7-wt-ath+ from the repository (git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git) 
and replace WLAN.RM.4.4.1-00132-QCARMSWP-1 with "/lib/firmware/ath10k/QCA6174/hw3.0/firmware-6.bin". 

Same behavioiur as observed before. The interface receives no data in monitoring mode. While managed mode seems to work.

:~$ uname -a
Linux 5.1.0-rc7-wt-ath+ #3 SMP Fri May 17 14:58:27 CEST 2019 x86_64 x86_64 x86_64 GNU/Linux
:~$ sudo service network-manager stop
:~$ sudo lshw -sanitize
*-pci:1
     description: PCI bridge
     product: Sunrise Point-LP PCI Express Root Port #9
     vendor: Intel Corporation
     physical id: 1d
     bus info: pci@0000:00:1d.0
     version: f1
     width: 32 bits
     clock: 33MHz
     capabilities: pci pciexpress msi pm normal_decode bus_master cap_list
     configuration: driver=pcieport
     resources: irq:123 memory:df000000-df1fffff
   *-network
        description: Wireless interface
        product: QCA6174 802.11ac Wireless Network Adapter
        vendor: Qualcomm Atheros
        physical id: 0
        bus info: pci@0000:02:00.0
        logical name: wlp2s0
        version: 32
        serial: [REMOVED]
        width: 64 bits
        clock: 33MHz
        capabilities: pm msi pciexpress bus_master cap_list logical wireless
        configuration: broadcast=yes driver=ath10k_pci driverversion=5.1.0-rc7-wt-ath+ firmware=WLAN.RM.4.4.1-00132-QCARMSWP-1 latency=0 link=yes multicast=yes wireless=IEEE 802.11
        resources: irq:134 memory:df000000-df1fffff
:~$ sudo ifconfig wlp2s0 down
:~$ sudo iw dev wlp2s0 set type monitor
:~$ sudo iw dev
phy#0
	Interface wlp2s0
		ifindex 4
		wdev 0x1
		type monitor
		txpower 0.00 dBm
:~$ sudo ifconfig wlp2s0 up
:~$ dmesg
[    4.585876] cfg80211: Loading compiled-in X.509 certificates for regulatory database
[    4.587488] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'
[    4.948771] ath10k_pci 0000:02:00.0: qca6174 hw3.2 target 0x05030000 chip_id 0x00340aff sub 1dac:0261
[    4.948773] ath10k_pci 0000:02:00.0: kconfig debug 0 debugfs 1 tracing 1 dfs 0 testmode 0
[    4.949182] ath10k_pci 0000:02:00.0: firmware ver WLAN.RM.4.4.1-00132-QCARMSWP-1 api 6 features wowlan,ignore-otp,mfp crc32 79f4db86
[    5.015300] ath10k_pci 0000:02:00.0: board_file api 2 bmi_id N/A crc32 4ed3569e
[    5.077351] ath10k_pci 0000:02:00.0: UART prints enabled
[    5.145608] ath10k_pci 0000:02:00.0: unsupported HTC service id: 1536
[    5.399248] ath10k_pci 0000:02:00.0: htt-ver 3.60 wmi-op 4 htt-op 3 cal otp max-sta 32 raw 0 hwcrypto 1
[    5.506631] ath: EEPROM regdomain: 0x6c
[    5.506632] ath: EEPROM indicates we should expect a direct regpair map
[    5.506633] ath: Country alpha2 being used: 00
[    5.506633] ath: Regpair used: 0x6c
[    5.521558] ath10k_pci 0000:02:00.0 wlp2s0: renamed from wlan0
[    9.349624] ath10k_pci 0000:02:00.0: UART prints enabled
[    9.417824] ath10k_pci 0000:02:00.0: unsupported HTC service id: 1536
[  172.602058] ath10k_pci 0000:02:00.0: UART prints enabled
[  172.670794] ath10k_pci 0000:02:00.0: unsupported HTC service id: 1536
[  173.065855] IPv6: ADDRCONF(NETDEV_CHANGE): wlp2s0: link becomes ready
[  199.880218] device wlp2s0 entered promiscuous mode
[  266.446078] device wlp2s0 left promiscuous mode

:~$ sudo tcpdump -i wlp2s0
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on wlp2s0, link-type IEEE802_11_RADIO (802.11 plus radiotap header), capture size 262144 bytes
^C
0 packets captured
0 packets received by filter
0 packets dropped by kernel


# managed mode test
:~$ sudo ifconfig wlp2s0 down
:~$ sudo iw dev wlp2s0 set type managed
:~$ sudo ifconfig wlp2s0 up
:~$ iw dev
phy#0
	Interface wlp2s0
		ifindex 4
		wdev 0x1
		type managed
		txpower 0.00 dBm
:~$ sudo iw wlp2s0 scan
BSS xxxxxxxxxxxxxx(on wlp2s0)
	TSF: 4588156109184 usec (53d, 02:29:16)
	freq: 2437
	beacon interval: 100 TUs
	capability: ESS Privacy ShortPreamble ShortSlotTime (0x0431)
	signal: -84.00 dBm
	last seen: 4440 ms ago
	Information elements from Probe Response frame:
	SSID: xxxxxxxxxxxxx
	Supported rates: 1.0* 2.0* 5.5* 11.0* 6.0* 9.0 12.0* 18.0 
	DS Parameter set: channel 6
	TIM: DTIM Count 0 DTIM Period 1 Bitmap Control 0x0 Bitmap[0] 0x0
	ERP: <no flags>
	Extended supported rates: 24.0* 36.0 48.0 54.0 
	BSS Load:
		 * station count: 4
		 * channel utilisation: 75/255
		 * available admission capacity: 0 [*32us]
	HT capabilities:
		Capabilities: 0x1ac
			HT20
			SM Power Save disabled
			RX HT20 SGI
			TX STBC
			RX STBC 1-stream
			Max AMSDU length: 3839 bytes
			No DSSS/CCK HT40
		Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
		Minimum RX AMPDU time spacing: 8 usec (0x06)
		HT TX/RX MCS rate indexes supported: 0-23
	HT operation:
		 * primary channel: 6
		 * secondary channel offset: no secondary
		 * STA channel width: 20 MHz
		 * RIFS: 0
		 * HT protection: nonmember
		 * non-GF present: 1
		 * OBSS non-GF present: 0
		 * dual beacon: 0
		 * dual CTS protection: 0
		 * STBC beacon: 0
		 * L-SIG TXOP Prot: 0
		 * PCO active: 0
		 * PCO phase: 0
	Extended capabilities:
		 * Operating Mode Notification
	WMM:	 * Parameter version 1
		 * BE: CW 15-1023, AIFSN 3
		 * BK: CW 15-1023, AIFSN 7
		 * VI: CW 7-15, AIFSN 2, TXOP 3008 usec
		 * VO: CW 3-7, AIFSN 2, TXOP 1504 usec
	RSN:	 * Version: 1
		 * Group cipher: CCMP
		 * Pairwise ciphers: CCMP
		 * Authentication suites: PSK
		 * Capabilities: 1-PTKSA-RC 1-GTKSA-RC (0x0000)
......
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