On Thu, Sep 6, 2018 at 5:32 AM Stanislaw Gruszka [off-list ref] wrote:

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On Wed, Sep 05, 2018 at 08:52:18PM +0000, Sid Hayn wrote:

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On Tue, Sep 4, 2018 at 5:11 PM Lorenzo Bianconi
[off-list ref] wrote:

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I have one mt76x2u (Alfa AWUS036ACM) and a few mt76x0.

I've noticed two additional issues in my testing.

First issue, is that it appears the mt76x0 devices don't work properly
in monitor mode.  Sometimes they seem to monitor one channel properly,
but nothing else.  The mt76x2u works great, channel control, lots of
packets, etc.

Could you elaborate a little bit please? how can you reproduce the issue?
just add an interface in monitor mode and run a scan?

Correct, standard stuff, use iw to create a monitor mode interface,
use iw to remove managed mode interface, run some tool such as kismet
or airodump-ng or even wireshark.

But what exactly are the syptomps, I don't understand what you mean by
"mt76x0 devices don't work properly in monitor mode" ?

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I guess it depends on eeprom values. Could you please enable debug
messages a paste
syslog output?

I don't see a mediatek specific debug near the driver selection in
menuconfig, what debug messages do you want me to enable and how?

You need to uncomment this line:

# ccflags-y := -DDEBUG

in drivers/net/wireless/mediatek/mt76/mt76x0/Makefile

I have done this change, rebooted, and plugged in the TP-Link t1u
dongle which is 5GHz only.  This is dmesg:
[   30.058587] usb 2-2: new high-speed USB device number 3 using xhci_hcd
[   30.200008] usb 2-2: New USB device found, idVendor=2357,
idProduct=0105, bcdDevice= 1.00
[   30.200010] usb 2-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[   30.200012] usb 2-2: Product: WiFi
[   30.200013] usb 2-2: Manufacturer: MediaTek
[   30.200015] usb 2-2: SerialNumber: 1.0
[   30.332895] usb 2-2: reset high-speed USB device number 3 using xhci_hcd
[   30.466124] mt76x0 2-2:1.0: ASIC revision: 76100002 MAC revision: 76502000
[   30.467534] mt76x0 2-2:1.0: Firmware Version: 0.1.00 Build: 7640
Build time: 201308221655____
[   30.789455] mt76x0 2-2:1.0: loading FW - ILM 68716 + IVB 64
[   30.844588] mt76x0 2-2:1.0: loading FW - DLM 11476
[   31.172677] mt76x0 2-2:1.0: Firmware running!
[   31.378879] mt76x0 2-2:1.0: MCU not ready
[   31.393770] BBP version f000f200
[   31.410935] mt76x0 2-2:1.0: EEPROM ver:02 fae:01
[   31.411086] mt76x0 2-2:1.0: NIC_CONF0: fd11 NIC_CONF1: 3084
[   31.411088] mt76x0 2-2:1.0: Has 2GHZ 1 5GHZ 1

as you can see the eeprom reports both bands. I will review mt76x0
eeprom layout later today

Regards,
Lorenzo

[   31.411089] mt76x0 2-2:1.0: PA Type 1
[   31.411090] mt76x0 2-2:1.0: REG 2GHZ 0 REG 5GHZ 9
[   31.411092] mt76x0 2-2:1.0: EEPROM country region 00 (channels 1-11)
[   31.416308] ieee80211 phy1: Selected rate control algorithm 'minstrel_ht'
[   31.417285] usbcore: registered new interface driver mt76x0

What would you like next?

-Zero

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Thanks
Stanislaw