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SubjectRe: [PATCH v3 00/11] RTW88: Add support for USB variants
On Tue, Nov 22, 2022 at 03:52:15PM +0100, Sascha Hauer wrote:
> This is the third round of adding support for the USB variants to the
> RTW88 driver. There are a few changes to the last version which make it
> worth looking at this version.
>
> First of all RTL8723du and RTL8821cu are tested working now. The issue
> here was that the txdesc checksum calculation was wrong. I found the
> correct calculation in various downstream drivers found on github.
>
> The second big issue was that TX packet aggregation was wrong. When
> aggregating packets each packet start has to be aligned to eight bytes.
> The necessary alignment was added to the total URB length before
> checking if there is another packet to aggregate, so the URB length
> included that padding after the last packet, which is wrong. Fixing
> this makes the driver work much more reliably.
>
> I added all people to Cc: who showed interest in this driver and I want
> to welcome you for testing and reviewing.

There still is a problem with the RTL8822cu chipset I have here. When
using NetworkManager I immediately lose the connection to the AP after
it has been connected:

[ 376.213846] wlan0: authenticate with 76:83:c2:ce:81:b1
[ 380.085463] wlan0: send auth to 76:83:c2:ce:81:b1 (try 1/3)
[ 380.091446] wlan0: authenticated
[ 380.108864] wlan0: associate with 76:83:c2:ce:81:b1 (try 1/3)
[ 380.136448] wlan0: RX AssocResp from 76:83:c2:ce:81:b1 (capab=0x1411 status=0 aid=2)
[ 380.202955] wlan0: associated
[ 380.268140] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 380.275328] wlan0: Connection to AP 76:83:c2:ce:81:b1 lost

That doesn't happen when using plain wpa_supplicant. This seems to go
down to cd96e22bc1da ("rtw88: add beacon filter support"). After being
connected I get a BCN_FILTER_CONNECTION_LOSS beacon. Plain
wpa_supplicant seems to go another code patch and doesn't activate
connection quality monitoring.

The connection to the AP works fluently also with NetworkManager though
when I just ignore the BCN_FILTER_CONNECTION_LOSS beacon.

Any idea what may be wrong here?

Sascha

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