From: Yan-Hsuan Chuang <yhchuang@xxxxxxxxxxx>
The module parameter rtw_fw_support_lps is misleading. It
is not used to represent the firmware's property, but to
determine if driver wants to ask firmware to enter LPS.
However, driver should better enable/disable PS through
cfg80211_ops::set_power_mgmt instead.
For example, one could use iw command to set PS state.
$ sudo iw wlanX set power_save [on/off]
So rtw_fw_support_lps should be removed because it is
misleading and useless. Instead of checking the parameter,
set PS mode according to IEEE80211_CONF_PS.
Signed-off-by: Yan-Hsuan Chuang <yhchuang@xxxxxxxxxxx>
---
v1 -> v2
- rebase on top of wireless-drivers-next
drivers/net/wireless/realtek/rtw88/mac80211.c | 9 +++++
drivers/net/wireless/realtek/rtw88/main.c | 33 +++++++++----------
drivers/net/wireless/realtek/rtw88/main.h | 1 +
3 files changed, 25 insertions(+), 18 deletions(-)
diff --git a/drivers/net/wireless/realtek/rtw88/mac80211.c b/drivers/net/wireless/realtek/rtw88/mac80211.c
index 22b13e45fcee..97777c7fdce8 100644
--- a/drivers/net/wireless/realtek/rtw88/mac80211.c
+++ b/drivers/net/wireless/realtek/rtw88/mac80211.c
@@ -74,6 +74,15 @@ static int rtw_ops_config(struct ieee80211_hw *hw, u32 changed)
}
}
+ if (changed & IEEE80211_CONF_CHANGE_PS) {
+ if (hw->conf.flags & IEEE80211_CONF_PS) {
+ rtwdev->ps_enabled = true;
+ } else {
+ rtwdev->ps_enabled = false;
+ rtw_leave_lps(rtwdev);
+ }
+ }
+
if (changed & IEEE80211_CONF_CHANGE_CHANNEL)
rtw_set_channel(rtwdev);
diff --git a/drivers/net/wireless/realtek/rtw88/main.c b/drivers/net/wireless/realtek/rtw88/main.c
index 3c366a3314cb..a3e9f917adef 100644
--- a/drivers/net/wireless/realtek/rtw88/main.c
+++ b/drivers/net/wireless/realtek/rtw88/main.c
@@ -16,16 +16,13 @@
unsigned int rtw_fw_lps_deep_mode;
EXPORT_SYMBOL(rtw_fw_lps_deep_mode);
-static bool rtw_fw_support_lps;
unsigned int rtw_debug_mask;
EXPORT_SYMBOL(rtw_debug_mask);
module_param_named(lps_deep_mode, rtw_fw_lps_deep_mode, uint, 0644);
-module_param_named(support_lps, rtw_fw_support_lps, bool, 0644);
module_param_named(debug_mask, rtw_debug_mask, uint, 0644);
MODULE_PARM_DESC(lps_deep_mode, "Deeper PS mode. If 0, deep PS is disabled");
-MODULE_PARM_DESC(support_lps, "Set Y to enable Leisure Power Save support, to turn radio off between beacons");
MODULE_PARM_DESC(debug_mask, "Debugging mask");
static struct ieee80211_channel rtw_channeltable_2g[] = {
@@ -117,8 +114,6 @@ static struct ieee80211_supported_band rtw_band_5ghz = {
struct rtw_watch_dog_iter_data {
struct rtw_vif *rtwvif;
- bool active;
- u8 assoc_cnt;
};
static void rtw_vif_watch_dog_iter(void *data, u8 *mac,
@@ -127,18 +122,9 @@ static void rtw_vif_watch_dog_iter(void *data, u8 *mac,
struct rtw_watch_dog_iter_data *iter_data = data;
struct rtw_vif *rtwvif = (struct rtw_vif *)vif->drv_priv;
- if (vif->type == NL80211_IFTYPE_STATION) {
- if (vif->bss_conf.assoc) {
- iter_data->assoc_cnt++;
+ if (vif->type == NL80211_IFTYPE_STATION)
+ if (vif->bss_conf.assoc)
iter_data->rtwvif = rtwvif;
- }
- if (rtwvif->stats.tx_cnt > RTW_LPS_THRESHOLD ||
- rtwvif->stats.rx_cnt > RTW_LPS_THRESHOLD)
- iter_data->active = true;
- } else {
- /* only STATION mode can enter lps */
- iter_data->active = true;
- }
rtwvif->stats.tx_unicast = 0;
rtwvif->stats.rx_unicast = 0;
@@ -155,6 +141,7 @@ static void rtw_watch_dog_work(struct work_struct *work)
watch_dog_work.work);
struct rtw_watch_dog_iter_data data = {};
bool busy_traffic = test_bit(RTW_FLAG_BUSY_TRAFFIC, rtwdev->flags);
+ bool ps_active;
mutex_lock(&rtwdev->mutex);
@@ -172,6 +159,12 @@ static void rtw_watch_dog_work(struct work_struct *work)
if (busy_traffic != test_bit(RTW_FLAG_BUSY_TRAFFIC, rtwdev->flags))
rtw_coex_wl_status_change_notify(rtwdev);
+ if (rtwdev->stats.tx_cnt > RTW_LPS_THRESHOLD ||
+ rtwdev->stats.rx_cnt > RTW_LPS_THRESHOLD)
+ ps_active = true;
+ else
+ ps_active = false;
+
/* reset tx/rx statictics */
rtwdev->stats.tx_unicast = 0;
rtwdev->stats.rx_unicast = 0;
@@ -192,9 +185,13 @@ static void rtw_watch_dog_work(struct work_struct *work)
/* fw supports only one station associated to enter lps, if there are
* more than two stations associated to the AP, then we can not enter
* lps, because fw does not handle the overlapped beacon interval
+ *
+ * mac80211 should iterate vifs and determine if driver can enter
+ * ps by passing IEEE80211_CONF_PS to us, all we need to do is to
+ * get that vif and check if device is having traffic more than the
+ * threshold.
*/
- if (rtw_fw_support_lps &&
- data.rtwvif && !data.active && data.assoc_cnt == 1)
+ if (rtwdev->ps_enabled && data.rtwvif && !ps_active)
rtw_enter_lps(rtwdev, data.rtwvif->port);
rtwdev->watch_dog_cnt++;
diff --git a/drivers/net/wireless/realtek/rtw88/main.h b/drivers/net/wireless/realtek/rtw88/main.h
index 6221dc45fc2a..161297ad7d99 100644
--- a/drivers/net/wireless/realtek/rtw88/main.h
+++ b/drivers/net/wireless/realtek/rtw88/main.h
@@ -1372,6 +1372,7 @@ struct rtw_dev {
/* lps power state & handler work */
struct rtw_lps_conf lps_conf;
+ bool ps_enabled;
struct dentry *debugfs;
--
2.17.1
