This driver relies on IEEE80211_CONF_PS of hw->conf.flags to turn off PS or turn on dynamic PS controlled by driver and firmware. Though this would be incorrect, it did work before because the flag is always recalculated until the commit 28977e790b5d ("wifi: mac80211: skip powersave recalc if driver SUPPORTS_DYNAMIC_PS") is introduced by kernel 5.20 to skip to recalculate IEEE80211_CONF_PS of hw->conf.flags if driver sets SUPPORTS_DYNAMIC_PS.
Correct this by doing recalculation while BSS_CHANGED_PS is changed and interface is added or removed. For now, it is allowed to enter PS only if single one station vif is working, and it could possible to have PS per vif after firmware can support it. Without this fix, driver doesn't enter PS anymore that causes higher power consumption.
Fixes: e3ec7017f6a2 ("rtw89: add Realtek 802.11ax driver") Cc: stable@vger.kernel.org # 6.1+ Signed-off-by: Ping-Ke Shih pkshih@realtek.com Signed-off-by: Kalle Valo kvalo@kernel.org Link: https://lore.kernel.org/r/20230527082939.11206-3-pkshih@realtek.com (cherry picked from commit 26a125f550a3bf86ac91d38752f4d446426dfe1c) Signed-off-by: Ping-Ke Shih pkshih@realtek.com --- drivers/net/wireless/realtek/rtw89/mac80211.c | 16 +++++------- drivers/net/wireless/realtek/rtw89/ps.c | 26 +++++++++++++++++++ drivers/net/wireless/realtek/rtw89/ps.h | 1 + 3 files changed, 34 insertions(+), 9 deletions(-)
diff --git a/drivers/net/wireless/realtek/rtw89/mac80211.c b/drivers/net/wireless/realtek/rtw89/mac80211.c index d43281f7335b1..3dc988cac4aeb 100644 --- a/drivers/net/wireless/realtek/rtw89/mac80211.c +++ b/drivers/net/wireless/realtek/rtw89/mac80211.c @@ -79,15 +79,6 @@ static int rtw89_ops_config(struct ieee80211_hw *hw, u32 changed) !(hw->conf.flags & IEEE80211_CONF_IDLE)) rtw89_leave_ips(rtwdev);
- if (changed & IEEE80211_CONF_CHANGE_PS) { - if (hw->conf.flags & IEEE80211_CONF_PS) { - rtwdev->lps_enabled = true; - } else { - rtw89_leave_lps(rtwdev); - rtwdev->lps_enabled = false; - } - } - if (changed & IEEE80211_CONF_CHANGE_CHANNEL) { rtw89_config_entity_chandef(rtwdev, RTW89_SUB_ENTITY_0, &hw->conf.chandef); @@ -147,6 +138,8 @@ static int rtw89_ops_add_interface(struct ieee80211_hw *hw, rtw89_core_txq_init(rtwdev, vif->txq);
rtw89_btc_ntfy_role_info(rtwdev, rtwvif, NULL, BTC_ROLE_START); + + rtw89_recalc_lps(rtwdev); out: mutex_unlock(&rtwdev->mutex);
@@ -170,6 +163,8 @@ static void rtw89_ops_remove_interface(struct ieee80211_hw *hw, rtw89_mac_remove_vif(rtwdev, rtwvif); rtw89_core_release_bit_map(rtwdev->hw_port, rtwvif->port); list_del_init(&rtwvif->list); + rtw89_recalc_lps(rtwdev); + mutex_unlock(&rtwdev->mutex); }
@@ -425,6 +420,9 @@ static void rtw89_ops_bss_info_changed(struct ieee80211_hw *hw, if (changed & BSS_CHANGED_P2P_PS) rtw89_process_p2p_ps(rtwdev, vif);
+ if (changed & BSS_CHANGED_PS) + rtw89_recalc_lps(rtwdev); + mutex_unlock(&rtwdev->mutex); }
diff --git a/drivers/net/wireless/realtek/rtw89/ps.c b/drivers/net/wireless/realtek/rtw89/ps.c index 40498812205ea..c1f1083d3f634 100644 --- a/drivers/net/wireless/realtek/rtw89/ps.c +++ b/drivers/net/wireless/realtek/rtw89/ps.c @@ -244,3 +244,29 @@ void rtw89_process_p2p_ps(struct rtw89_dev *rtwdev, struct ieee80211_vif *vif) rtw89_p2p_disable_all_noa(rtwdev, vif); rtw89_p2p_update_noa(rtwdev, vif); } + +void rtw89_recalc_lps(struct rtw89_dev *rtwdev) +{ + struct ieee80211_vif *vif, *found_vif = NULL; + struct rtw89_vif *rtwvif; + int count = 0; + + rtw89_for_each_rtwvif(rtwdev, rtwvif) { + vif = rtwvif_to_vif(rtwvif); + + if (vif->type != NL80211_IFTYPE_STATION) { + count = 0; + break; + } + + count++; + found_vif = vif; + } + + if (count == 1 && found_vif->cfg.ps) { + rtwdev->lps_enabled = true; + } else { + rtw89_leave_lps(rtwdev); + rtwdev->lps_enabled = false; + } +} diff --git a/drivers/net/wireless/realtek/rtw89/ps.h b/drivers/net/wireless/realtek/rtw89/ps.h index 6ac1f7ea53394..374e9a358683f 100644 --- a/drivers/net/wireless/realtek/rtw89/ps.h +++ b/drivers/net/wireless/realtek/rtw89/ps.h @@ -14,5 +14,6 @@ void rtw89_enter_ips(struct rtw89_dev *rtwdev); void rtw89_leave_ips(struct rtw89_dev *rtwdev); void rtw89_set_coex_ctrl_lps(struct rtw89_dev *rtwdev, bool btc_ctrl); void rtw89_process_p2p_ps(struct rtw89_dev *rtwdev, struct ieee80211_vif *vif); +void rtw89_recalc_lps(struct rtw89_dev *rtwdev);
#endif