Hi! Wanted to report some bugs with athn firmware. I know there has been
some updates
recently (thanks mostly to stsp@ and kevlo@), so I'm not sure what I'm
reporting is already known or not. I'm using OpenBSD 6.5, not -current
(let
me know if full dmesg is needed - the hardware is a AMD Ryzen 5). The
adapter
is a TP-Link TL-WN722N (firmware instaled using fw_update):
athn0 at uhub1 port 4 configuration 1 interface 0 "ATHEROS USB2.0 WLAN"
rev 2.00/1.08 addr 4
athn0: AR9271 rev 1 (1T1R), ROM rev 13
While using client mode (not HostAP), this bug happens some times:
usbd_free_xfer: xfer=0xfffffd81e0bd53d0 not free
usbd_free_xfer: xfer=0xfffffd81831163c0 not free
usbd_free_xfer: xfer=0xfffffd81e0c2de18 not free
I'm unable to reconnect the device, it's just not recognized anymore
until next boot.
I'm sure this is not a hardware issue, as it works on other systems.
There was a hypothesis that USB is not sending enough power on 2.0 ports
[1].
So I connected to a standalone 3.0 port, and the same still happens.
kevlo@ reported his device (same as the one I'm using) is working just
fine
in older releases [2].
The second bug is with 11n HT-MCS. It doesn't work at all. The only mode
that
works is 11g OFDM58. But the speed is not great. I know I'm not doing a
proper benchmark
with iperf3, but the difference is very significant between ath9k-open
on debian and openbsd.
The maximum speed I could get on OpenBSD was 1.5MB/s, while on Debian it
gets up to ~6.0MB/s.
I don't expect the same speed and I'm not complaining, just wanted to
point out that this
might be because HT-MCS is not working (at least for me).
Will the new release solve some of these issues? Thanks for all the work
this year!
Looking foward for the next release (bin patches seems great).
[1] https://marc.info/?l=openbsd-bugs&m=153268350614634&w=2
[2] https://marc.info/?l=openbsd-tech&m=151090602510672&w=2
