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>

2 files changed, 12 insertions, 7 deletions

diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_main.c b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
index 19600018e562..0d6272ac0dac 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_main.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
@@ -1172,7 +1172,7 @@ static void ath9k_htc_remove_interface(struct ieee80211_hw *hw,
 	mutex_unlock(&priv->mutex);
 }
 
-static int ath9k_htc_config(struct ieee80211_hw *hw, u32 changed)
+static int ath9k_htc_config(struct ieee80211_hw *hw, int radio_idx, u32 changed)
 {
 	struct ath9k_htc_priv *priv = hw->priv;
 	struct ath_common *common = ath9k_hw_common(priv->ah);
@@ -1737,12 +1737,14 @@ static void ath9k_htc_sw_scan_complete(struct ieee80211_hw *hw,
 	mutex_unlock(&priv->mutex);
 }
 
-static int ath9k_htc_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
+static int ath9k_htc_set_rts_threshold(struct ieee80211_hw *hw,
+				       int radio_idx, u32 value)
 {
 	return 0;
 }
 
 static void ath9k_htc_set_coverage_class(struct ieee80211_hw *hw,
+					 int radio_idx,
 					 s16 coverage_class)
 {
 	struct ath9k_htc_priv *priv = hw->priv;
@@ -1841,8 +1843,8 @@ struct base_eep_header *ath9k_htc_get_eeprom_base(struct ath9k_htc_priv *priv)
 }
 
 
-static int ath9k_htc_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant,
-				 u32 *rx_ant)
+static int ath9k_htc_get_antenna(struct ieee80211_hw *hw, int radio_idx,
+				 u32 *tx_ant, u32 *rx_ant)
 {
 	struct ath9k_htc_priv *priv = hw->priv;
 	struct base_eep_header *pBase = ath9k_htc_get_eeprom_base(priv);
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index c56f4f3b8990..740a6fc7b067 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -1484,7 +1484,7 @@ static void ath9k_disable_ps(struct ath_softc *sc)
 	ath_dbg(common, PS, "PowerSave disabled\n");
 }
 
-static int ath9k_config(struct ieee80211_hw *hw, u32 changed)
+static int ath9k_config(struct ieee80211_hw *hw, int radio_idx, u32 changed)
 {
 	struct ath_softc *sc = hw->priv;
 	struct ath_hw *ah = sc->sc_ah;
@@ -2114,6 +2114,7 @@ static void ath9k_enable_dynack(struct ath_softc *sc)
 }
 
 static void ath9k_set_coverage_class(struct ieee80211_hw *hw,
+				     int radio_idx,
 				     s16 coverage_class)
 {
 	struct ath_softc *sc = hw->priv;
@@ -2338,7 +2339,8 @@ static bool validate_antenna_mask(struct ath_hw *ah, u32 val)
 	}
 }
 
-static int ath9k_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant)
+static int ath9k_set_antenna(struct ieee80211_hw *hw, int radio_idx,
+			     u32 tx_ant, u32 rx_ant)
 {
 	struct ath_softc *sc = hw->priv;
 	struct ath_hw *ah = sc->sc_ah;
@@ -2367,7 +2369,8 @@ static int ath9k_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant)
 	return 0;
 }
 
-static int ath9k_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant)
+static int ath9k_get_antenna(struct ieee80211_hw *hw, int radio_idx,
+			     u32 *tx_ant, u32 *rx_ant)
 {
 	struct ath_softc *sc = hw->priv;