Hi Michael, On Thu, Nov 7, 2024 at 1:51 PM Michael Nemanov <michael.nemanov@xxxxxx> wrote: > This series adds support for CC33xx which is a new family of WLAN IEEE802.11 a/b/g/n/ax > and BLE 5.4 transceivers by Texas Instruments. Thanks for going through the effort of upstreaming the driver. We have started looking into the CC33xx chips (in conjunction with the AM62L SoC) and noticed the following behavior: # curl https://speedtest.init7.net/1GB.dd >/dev/null % Total % Received % Xferd Average Speed Time Time Time Current Dload Upload Total Spent Left Speed 4 1024M 4 42.4M 0 0 2358k 0 0:07:24 0:00:18 0:07:06 0 After downloading some megabytes of data, with reasonable speed, something seems to lock up and no further communication is possible through the Wi-Fi interface. AFAICT nothing is logged, however, when I unload the driver, I see errors like: [16590.256433] cc33xx: ERROR failed to initiate cmd role disable [16590.256446] cc33xx: CC33xx driver attempting recovery [16590.256455] cc33xx: Driver being removed, recovery disabled [16590.272950] wlan0: deauthenticating from ab:cd:ef:01:23:45 by local choice (Reason: 3=DEAUTH_LEAVING) [16590.784390] cc33xx: WARNING Unable to flush all TX buffers, timed out (timeout 500 ms [16591.296388] cc33xx: WARNING Unable to flush all TX buffers, timed out (timeout 500 ms [16591.808379] cc33xx: WARNING Unable to flush all TX buffers, timed out (timeout 500 ms [16591.816792] wlan0: failed to remove key (0, ab:cd:ef:01:23:45) from hardware (-11) [16593.840379] cc33xx: WARNING CONFIGURE command NOK [16593.845172] cc33xx: WARNING tx param cfg failed: -5 [16595.856352] cc33xx: WARNING CONFIGURE command NOK [16595.861159] cc33xx: WARNING tx param cfg failed: -5 [16597.872323] cc33xx: WARNING CONFIGURE command NOK [16597.877079] cc33xx: WARNING tx param cfg failed: -5 [16599.888317] cc33xx: WARNING CONFIGURE command NOK [16599.893069] cc33xx: WARNING tx param cfg failed: -5 [16600.400303] cc33xx: WARNING Unable to flush all TX buffers, timed out (timeout 500 ms [16600.912270] cc33xx: WARNING Unable to flush all TX buffers, timed out (timeout 500 ms [16600.920388] wlan0: failed to remove key (1, ff:ff:ff:ff:ff:ff) from hardware (-11) We can easily reproduce this behavior on our ATMDS62LEVM board in conjunction with the M2-CC3351 card. We run a Yocto-based distribution (Scarthgap) using the latest linux-ti-staging-6.12 kernel recipe (Linux 6.12.17+). So far, I haven't tried to dig into this deeper. Any ideas on how to debug this further? Cheers, Ezra.
