ath10k QCA988x firmware not supporting monitor mode

[KAVITA MATHUR]

Hi!

We are using Atheros QCA9880 mPCIe module with ath10k drivers and firmware.

Kernel: 3.12
Backports: 4.4
Firmware:10.2.4.70.59-2

We are not able to run the wlan1 interface in monitor mode. The following error comes
when we do
iw phy phy1 interface add wlan1 type monitor
ifconfig wlan1 up

ath10k_pci 0001:03:00.0: firmware crashed! (uuid n/a)
ath10k_pci 0001:03:00.0: qca988x hw2.0 (0x4100016c, 0x043202ff sub 0000:0000) fw
10.2.4.70.59-2 fwapi 5 bdapi 1 htt-ver 2.1 wmi-op 5 htt-op 2 cal otp max-sta 128 raw 0
hwcrypto 1 features no-p2p,raw-mode
ath10k_pci 0001:03:00.0: debug 0 debugfs 0 tracing 0 dfs 0 testmode 0
ath10k_pci 0001:03:00.0: firmware register dump:
ath10k_pci 0001:03:00.0: [00]: 0x4100016C 0x00000000 0x0097F8D5 0x00000000
ath10k_pci 0001:03:00.0: [04]: 0x00000000 0x00000000 0x00000000 0x00000000
ath10k_pci 0001:03:00.0: [08]: 0x00000000 0x00000000 0x00000000 0x00000000
ath10k_pci 0001:03:00.0: [12]: 0x00000000 0x00000000 0x00000000 0x00000000
ath10k_pci 0001:03:00.0: [16]: 0x00000000 0x00000000 0x00000000 0x0097F8D5
ath10k_pci 0001:03:00.0: [20]: 0x00000000 0x00401930 0x00000000 0x00000000
ath10k_pci 0001:03:00.0: [24]: 0x00000000 0x00000000 0x00000000 0x00000000
ath10k_pci 0001:03:00.0: [28]: 0x00000000 0x00000000 0x00000000 0x00000000
ath10k_pci 0001:03:00.0: [32]: 0x00000000 0x00000000 0x00000000 0x00000000
ath10k_pci 0001:03:00.0: [36]: 0x00000000 0x00000000 0x00000000 0x00000000
ath10k_pci 0001:03:00.0: [40]: 0x00000000 0x00000000 0x00000000 0x00000000
ath10k_pci 0001:03:00.0: [44]: 0x00000000 0x00000000 0x00000000 0x00000000
ath10k_pci 0001:03:00.0: [48]: 0x00000000 0x00000000 0x00000000 0x00000000
ath10k_pci 0001:03:00.0: [52]: 0x00000000 0x00000000 0x00000000 0x00000000
ath10k_pci 0001:03:00.0: [56]: 0x00000000 0x00000000 0x00000000 0x00000000
ath10k_pci 0001:03:00.0: failed to set 2g txpower 0: -108
ath10k_pci 0001:03:00.0: failed to setup tx power 0: -108
ath10k_pci 0001:03:00.0: failed to recalc tx power: -108
------------[ cut here ]------------
WARNING: at fb83c3b8 [verbose debug info unavailable]
Modules linked in: ath10k_pci(O) ath10k_core(O) mac80211(O) ath(O) cfg80211(O) compat(O)
uio_pdrv_genirq
CPU: 0 PID: 17173 Comm: ifconfig Tainted: G           O 3.12.37-rt51+ #23
task: e6415500 ti: ef02a000 task.ti: ef02a000
NIP: fb83c3b8 LR: fb83c3a8 CTR: c00788f0
REGS: ef02bcb0 TRAP: 0700   Tainted: G           O  (3.12.37-rt51+)
MSR: 00029002 <CE,EE,ME>  CR: 84008482  XER: 20000000

GPR00: fb83c3a8 ef02bd60 e6415500 ffffff94 eb865a40 00000152 00000000 00000000
GPR08: 00000000 00000001 00000000 00021002 84ad2e42 10025578 10100000 00000000
GPR16: 00000000 1000acb4 1001d264 1001d264 1001d1f8 ef98200c 00000000 e0e44000
GPR24: e0e44480 ffffffff 00000001 00000000 e0e44704 e0e40000 ffffff94 ef7ccba0
NIP [fb83c3b8] ieee80211_add_virtual_monitor+0xd8/0x1c0 [mac80211]
LR [fb83c3a8] ieee80211_add_virtual_monitor+0xc8/0x1c0 [mac80211]
Call Trace:
[ef02bd60] [fb83c3a8] ieee80211_add_virtual_monitor+0xc8/0x1c0 [mac80211] (unreliable)
[ef02bd80] [fb83d168] ieee80211_do_open+0x4e8/0xa30 [mac80211]
[ef02bdc0] [c04d73a8] __dev_open+0xe8/0x160
[ef02bdf0] [c04d76a0] __dev_change_flags+0xa0/0x180
[ef02be10] [c04d785c] dev_change_flags+0x1c/0x70
[ef02be30] [c057d930] devinet_ioctl+0x600/0x8e0
[ef02be90] [c04ba6f4] sock_ioctl+0x224/0x2e0
[ef02beb0] [c0115150] do_vfs_ioctl+0x410/0x7a0
[ef02bf10] [c0115520] SyS_ioctl+0x40/0x80
[ef02bf40] [c000fb04] ret_from_syscall+0x0/0x3c
--- Exception: c01 at 0xff4ff8c
    LR = 0xffed2c0
Instruction dump:
39200008 913d038c 7fa3eb78 93dd000c 4bffe349 7fe3fb78 7fa4eb78 4bfee2cd
7c690034 5529d97e 7c7e1b78 69290001 <0f090000> 2f890000 7fa3eb78 40de00a0
---[ end trace c9df4859ac192be7 ]---
ieee80211 phy1: Hardware restart was requested
SIOCSIFFLAGS: Cannot send after transport endpoint shutdown

Please help me to set monitor mode on WiFi node.

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Thanks & Regards,
कविता माथुर Kavita Mathur 
वरिष्ठ अनुसंधान अभियंता  Senior Research Engineer 
सी-डॉट                      C-DOT
इलैक्ट्रॉनिक्स सिटी फेज़ I         Electronics City Phase I
होसूर रोड, बेंगलूरु               Hosur Road, Bengaluru – 560100
फोन  Ph 080-28529896
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