wifi: cfg80211/mac80211: Add support to get radio index

Currently, per-radio attributes are set on per-phy basis, i.e., all the
radios present in a wiphy will take attributes values sent from user. But
each radio in a wiphy can get different values from userspace based on
its requirement.

To extend support to set per-radio attributes, add support to get radio
index from userspace. Add an NL attribute - NL80211_ATTR_WIPHY_RADIO_INDEX,
to get user specified radio index for which attributes should be changed.
Pass this to individual drivers, so that the drivers can use this radio
index to change per-radio attributes when necessary. Currently, per-radio
attributes identified are:
NL80211_ATTR_WIPHY_TX_POWER_LEVEL
NL80211_ATTR_WIPHY_ANTENNA_TX
NL80211_ATTR_WIPHY_ANTENNA_RX
NL80211_ATTR_WIPHY_RETRY_SHORT
NL80211_ATTR_WIPHY_RETRY_LONG
NL80211_ATTR_WIPHY_FRAG_THRESHOLD
NL80211_ATTR_WIPHY_RTS_THRESHOLD
NL80211_ATTR_WIPHY_COVERAGE_CLASS
NL80211_ATTR_TXQ_LIMIT
NL80211_ATTR_TXQ_MEMORY_LIMIT
NL80211_ATTR_TXQ_QUANTUM

By default, the radio index is set to -1. This means the attribute should
be treated as a global configuration. If the user has not specified any
index, then the radio index passed to individual drivers would be -1. This
would indicate that the attribute applies to all radios in that wiphy.

Signed-off-by: Roopni Devanathan <quic_rdevanat@quicinc.com>
Link: https://patch.msgid.link/20250615082312.619639-2-quic_rdevanat@quicinc.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

1 files changed, 19 insertions, 11 deletions

diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 1a17d66dfa75..72cecc304658 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -3045,7 +3045,8 @@ static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
 	return 0;
 }
 
-static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
+static int ieee80211_set_wiphy_params(struct wiphy *wiphy, int radio_idx,
+				      u32 changed)
 {
 	struct ieee80211_local *local = wiphy_priv(wiphy);
 	int err;
@@ -3053,7 +3054,8 @@ static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
 	if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
 		ieee80211_check_fast_xmit_all(local);
 
-		err = drv_set_frag_threshold(local, wiphy->frag_threshold);
+		err = drv_set_frag_threshold(local, radio_idx,
+					     wiphy->frag_threshold);
 
 		if (err) {
 			ieee80211_check_fast_xmit_all(local);
@@ -3067,14 +3069,16 @@ static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
 
 		coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ?
 					wiphy->coverage_class : -1;
-		err = drv_set_coverage_class(local, coverage_class);
+		err = drv_set_coverage_class(local, radio_idx,
+					     coverage_class);
 
 		if (err)
 			return err;
 	}
 
 	if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
-		err = drv_set_rts_threshold(local, wiphy->rts_threshold);
+		err = drv_set_rts_threshold(local, radio_idx,
+					    wiphy->rts_threshold);
 
 		if (err)
 			return err;
@@ -3092,18 +3096,19 @@ static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
 	}
 	if (changed &
 	    (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
-		ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
+		ieee80211_hw_config(local, radio_idx,
+				    IEEE80211_CONF_CHANGE_RETRY_LIMITS);
 
 	if (changed & (WIPHY_PARAM_TXQ_LIMIT |
 		       WIPHY_PARAM_TXQ_MEMORY_LIMIT |
 		       WIPHY_PARAM_TXQ_QUANTUM))
-		ieee80211_txq_set_params(local);
+		ieee80211_txq_set_params(local, radio_idx);
 
 	return 0;
 }
 
 static int ieee80211_set_tx_power(struct wiphy *wiphy,
-				  struct wireless_dev *wdev,
+				  struct wireless_dev *wdev, int radio_idx,
 				  enum nl80211_tx_power_setting type, int mbm)
 {
 	struct ieee80211_local *local = wiphy_priv(wiphy);
@@ -3231,6 +3236,7 @@ static int ieee80211_set_tx_power(struct wiphy *wiphy,
 
 static int ieee80211_get_tx_power(struct wiphy *wiphy,
 				  struct wireless_dev *wdev,
+				  int radio_idx,
 				  unsigned int link_id,
 				  int *dbm)
 {
@@ -3409,7 +3415,7 @@ static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
 	}
 
 	if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS))
-		ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
+		ieee80211_hw_config(local, -1, IEEE80211_CONF_CHANGE_PS);
 
 	ieee80211_recalc_ps(local);
 	ieee80211_recalc_ps_vif(sdata);
@@ -4305,7 +4311,8 @@ ieee80211_update_mgmt_frame_registrations(struct wiphy *wiphy,
 		ieee80211_configure_filter(local);
 }
 
-static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
+static int ieee80211_set_antenna(struct wiphy *wiphy, int radio_idx,
+				 u32 tx_ant, u32 rx_ant)
 {
 	struct ieee80211_local *local = wiphy_priv(wiphy);
 	int ret;
@@ -4321,11 +4328,12 @@ static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
 	return 0;
 }
 
-static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
+static int ieee80211_get_antenna(struct wiphy *wiphy, int radio_idx,
+				 u32 *tx_ant, u32 *rx_ant)
 {
 	struct ieee80211_local *local = wiphy_priv(wiphy);
 
-	return drv_get_antenna(local, tx_ant, rx_ant);
+	return drv_get_antenna(local, radio_idx, tx_ant, rx_ant);
 }
 
 static int ieee80211_set_rekey_data(struct wiphy *wiphy,