lkml.org 
[lkml]   [2019]   [Jan]   [5]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v3 3/4] rtl8723ae: Re-introduce the adaptive rate control
Date
This re-introduces the function rtl8723e_dm_refresh_rate_adaptive_mask.

This function was present in a previous version of the code base,
it works just fine for me -- as long as it is not using stale data.

Unlike the original version of this function it avoids using
dm.undec_sm_pwdb when no beacon was received.

Fixed a style nit in rtl8723e_dm_init_rate_adaptive_mask.

Signed-off-by: Bernd Edlinger <bernd.edlinger@hotmail.de>
---
v2: Improve patch description.

v3: Improve patch description, mention that dm.undec_sm_pwdb
is not used when no beacon received.
Make the title fit in one line.
---
.../net/wireless/realtek/rtlwifi/rtl8723ae/dm.c | 87 +++++++++++++++++++++-
1 file changed, 85 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8723ae/dm.c b/drivers/net/wireless/realtek/rtlwifi/rtl8723ae/dm.c
index 902b944..acfd54c 100644
--- a/drivers/net/wireless/realtek/rtlwifi/rtl8723ae/dm.c
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8723ae/dm.c
@@ -673,7 +673,7 @@ void rtl8723e_dm_check_txpower_tracking(struct ieee80211_hw *hw)
void rtl8723e_dm_init_rate_adaptive_mask(struct ieee80211_hw *hw)
{
struct rtl_priv *rtlpriv = rtl_priv(hw);
- struct rate_adaptive *p_ra = &(rtlpriv->ra);
+ struct rate_adaptive *p_ra = &rtlpriv->ra;

p_ra->ratr_state = DM_RATR_STA_INIT;
p_ra->pre_ratr_state = DM_RATR_STA_INIT;
@@ -685,6 +685,89 @@ void rtl8723e_dm_init_rate_adaptive_mask(struct ieee80211_hw *hw)

}

+void rtl8723e_dm_refresh_rate_adaptive_mask(struct ieee80211_hw *hw)
+{
+ struct rtl_priv *rtlpriv = rtl_priv(hw);
+ struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
+ struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
+ struct rate_adaptive *p_ra = &rtlpriv->ra;
+ u32 low_rssithresh_for_ra, high_rssithresh_for_ra;
+ struct ieee80211_sta *sta = NULL;
+
+ if (is_hal_stop(rtlhal)) {
+ RT_TRACE(rtlpriv, COMP_RATE, DBG_LOUD,
+ " driver is going to unload\n");
+ return;
+ }
+
+ if (!rtlpriv->dm.useramask) {
+ RT_TRACE(rtlpriv, COMP_RATE, DBG_LOUD,
+ " driver does not control rate adaptive mask\n");
+ return;
+ }
+
+ if (mac->link_state == MAC80211_LINKED &&
+ mac->opmode == NL80211_IFTYPE_STATION) {
+ switch (p_ra->pre_ratr_state) {
+ case DM_RATR_STA_HIGH:
+ high_rssithresh_for_ra = 50;
+ low_rssithresh_for_ra = 20;
+ break;
+ case DM_RATR_STA_MIDDLE:
+ high_rssithresh_for_ra = 55;
+ low_rssithresh_for_ra = 20;
+ break;
+ case DM_RATR_STA_LOW:
+ high_rssithresh_for_ra = 60;
+ low_rssithresh_for_ra = 25;
+ break;
+ default:
+ high_rssithresh_for_ra = 50;
+ low_rssithresh_for_ra = 20;
+ break;
+ }
+
+ if (rtlpriv->link_info.bcn_rx_inperiod == 0)
+ switch (p_ra->pre_ratr_state) {
+ case DM_RATR_STA_HIGH:
+ default:
+ p_ra->ratr_state = DM_RATR_STA_MIDDLE;
+ break;
+ case DM_RATR_STA_MIDDLE:
+ case DM_RATR_STA_LOW:
+ p_ra->ratr_state = DM_RATR_STA_LOW;
+ break;
+ }
+ else if (rtlpriv->dm.undec_sm_pwdb > high_rssithresh_for_ra)
+ p_ra->ratr_state = DM_RATR_STA_HIGH;
+ else if (rtlpriv->dm.undec_sm_pwdb > low_rssithresh_for_ra)
+ p_ra->ratr_state = DM_RATR_STA_MIDDLE;
+ else
+ p_ra->ratr_state = DM_RATR_STA_LOW;
+
+ if (p_ra->pre_ratr_state != p_ra->ratr_state) {
+ RT_TRACE(rtlpriv, COMP_RATE, DBG_LOUD,
+ "RSSI = %ld\n",
+ rtlpriv->dm.undec_sm_pwdb);
+ RT_TRACE(rtlpriv, COMP_RATE, DBG_LOUD,
+ "RSSI_LEVEL = %d\n", p_ra->ratr_state);
+ RT_TRACE(rtlpriv, COMP_RATE, DBG_LOUD,
+ "PreState = %d, CurState = %d\n",
+ p_ra->pre_ratr_state, p_ra->ratr_state);
+
+ rcu_read_lock();
+ sta = rtl_find_sta(hw, mac->bssid);
+ if (sta)
+ rtlpriv->cfg->ops->update_rate_tbl(hw, sta,
+ p_ra->ratr_state,
+ true);
+ rcu_read_unlock();
+
+ p_ra->pre_ratr_state = p_ra->ratr_state;
+ }
+ }
+}
+
void rtl8723e_dm_rf_saving(struct ieee80211_hw *hw, u8 bforce_in_normal)
{
struct rtl_priv *rtlpriv = rtl_priv(hw);
@@ -834,7 +917,7 @@ void rtl8723e_dm_watchdog(struct ieee80211_hw *hw)
rtl8723e_dm_dynamic_bb_powersaving(hw);
rtl8723e_dm_dynamic_txpower(hw);
rtl8723e_dm_check_txpower_tracking(hw);
- /* rtl92c_dm_refresh_rate_adaptive_mask(hw); */
+ rtl8723e_dm_refresh_rate_adaptive_mask(hw);
rtl8723e_dm_bt_coexist(hw);
rtl8723e_dm_check_edca_turbo(hw);
}
--
1.9.1
\
 
 \ /
  Last update: 2019-01-06 01:03    [W:0.030 / U:0.124 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site