On 02/18/2020 03:06 PM, David Bauer wrote:
Hello Ben,
On 2/18/20 8:58 PM, Ben Greear wrote:
On 02/18/2020 11:12 AM, David Bauer wrote:
Hello,
while playing around with the 2.4GHz WiFi part of the IPQ4019, i was
expecting being able to set the rate at which IPQ4019 transmits it's beacon
frames.
Using OpenWrt, setting "legacy_rates=0" on the radio leads to only advertising
802.11g speeds, however the beacons are still sent out at 1 Mbit/s. Using a
QCA9984,
the beacons are correctly sent out at the lowest 802.11g rate (6 Mbit/s). So i
assume
this is either a bug in the ath10k firmware or a hardware-shortcoming. Has
anyone else
experienced this bug and is it likely we'll see it fixed in a later firmware
release?
Hardware: IPQ4029 (Aruba AP-303)
Firmware Version: 10.4-3.6-00140 / 10.4-3.5.3-00078
There are separate API for setting management frame rates. I forget exactly how
upstream supports this, but maybe check debugfs?
I'm using the mac80211 interface here [0], which works well for the QCA9984,
but not for
the IPQ4019. I'm not aware of a debugfs interface with ath10k for setting the
management
rate.
I can try the one ath10k-ct implements, but the fact it works on the QCA9984
makes me believe
the culprit is the firmware. The patch adding support for mgmt-rate setting
does not list the
IPQ4019 as a tested platform also.
[0] https://patchwork.kernel.org/patch/10593573/
Ok, maybe so. I compile all of the wave-2 targets from the same firmware
source,
but maybe upstream 4019 firmware lags others for one reason or another.
If you want to try -ct firmware/driver, please search for "Set multicast, broadcast,
beacon tx rates."
in the link below:
http://www.candelatech.com/ath10k-ug.php
Possibly these driver changes will work with upstream firmware, I have not
tried it.
# cat /debug/ieee80211/wiphy1/ath10k/set_rates
This is to set fixed bcast, mcast, and beacon rates. Normal rate-ctrl
is handled through normal API using 'iw', etc.
To set a value, you specify the dev-name, type, band and rate-code:
types: bcast, mcast, beacon
bands: 2, 5, 60
rate-codes: 0x43 1M, 0x42 2M, 0x41 5.5M, 0x40 11M, 0x3 6M, 0x7 9M, 0x2 12M, 0x6
18M, 0x1 24M, 0x5 36M, 0x0 48M, 0x4 54M, 0xFF default
For example, to set beacon to 18Mbps on wlan0: echo "wlan0 beacon 2 0x6" >
/debug/..../set_rates
I'm not sure if 'beacon' also controls other mgt frames or not w/out reviewing
the code.
Thanks,
Ben
Best wishes
David
Thanks,
Ben
--
Ben Greear <gree...@candelatech.com>
Candela Technologies Inc http://www.candelatech.com
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