Tamizh Chelvam Raja <quic_tamizhr@xxxxxxxxxxx> wrote: > Add support to get the following power save information through debugfs interface, > > * Current ps state of the peer > * Time duration since the peer is in power save > * Total duration of the peer spent in power save > > Above information is helpful in debugging the issues with power save clients. > > This patch also add trace log support for PS timekeeper to track the PS state > change of the peers alongs with the peer MAC address and timestamp. > > Use the below commands to get the above power save information, > > To know the time_since_station_in_power_save: > cat /sys/kernel/debug/ieee80211/phyX/netdev:wlanX/stations/ > XX:XX:XX:XX:XX:XX/current_ps_duration > > To know power_save_duration: > cat /sys/kernel/debug/ieee80211/phyX/netdev:wlanX/stations/ > XX:XX:XX:XX:XX:XX/total_ps_duration > > To reset the power_save_duration of all stations connected to AP: > echo 1 > /sys/kernel/debug/ieee80211/phyX/ath11k/reset_ps_duration > > To enable/disable the ps_timekeeper: > echo Y > /sys/kernel/debug/ieee80211/phyX/ath11k/ps_timekeeper_enable > Y = 1 to enable and Y = 0 to disable. > > To record PS timekeeer logs after enabling ps_timekeeper: > trace-cmd record -e ath11k_ps_timekeeper > > Tested-on: Tested-on: IPQ8074 WLAN.HK.2.5.0.1-00991-QCAHKSWPL_SILICONZ-1 > > Signed-off-by: Tamizh Chelvam Raja <quic_tamizhr@xxxxxxxxxxx> > Signed-off-by: Venkateswara Naralasetty <quic_vnaralas@xxxxxxxxxxx> > Signed-off-by: Kalle Valo <quic_kvalo@xxxxxxxxxxx> This failed to build: drivers/net/wireless/ath/ath11k/wmi.c:6771:1: error: no previous prototype for 'ath11k_wmi_event_peer_sta_ps_state_chg' [-Werror=missing-prototypes] I fixed it in the pending branch. -- https://patchwork.kernel.org/project/linux-wireless/patch/20220725054601.14719-1-quic_tamizhr@xxxxxxxxxxx/ https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
