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, 8 insertions, 1 deletions

diff --git a/drivers/net/wireless/rsi/rsi_91x_mac80211.c b/drivers/net/wireless/rsi/rsi_91x_mac80211.c
index 0e115b428f96..f3a853edfc11 100644
--- a/drivers/net/wireless/rsi/rsi_91x_mac80211.c
+++ b/drivers/net/wireless/rsi/rsi_91x_mac80211.c
@@ -656,11 +656,13 @@ static int rsi_config_power(struct ieee80211_hw *hw)
  *			   requests. The stack calls this function to
  *			   change hardware configuration, e.g., channel.
  * @hw: Pointer to the ieee80211_hw structure.
+ * @radio_idx: Radio index.
  * @changed: Changed flags set.
  *
  * Return: 0 on success, negative error code on failure.
  */
 static int rsi_mac80211_config(struct ieee80211_hw *hw,
+			       int radio_idx,
 			       u32 changed)
 {
 	struct rsi_hw *adapter = hw->priv;
@@ -1201,12 +1203,13 @@ unlock:
 /**
  * rsi_mac80211_set_rts_threshold() - This function sets rts threshold value.
  * @hw: Pointer to the ieee80211_hw structure.
+ * @radio_idx: Radio index.
  * @value: Rts threshold value.
  *
  * Return: 0 on success.
  */
 static int rsi_mac80211_set_rts_threshold(struct ieee80211_hw *hw,
-					  u32 value)
+					  int radio_idx, u32 value)
 {
 	struct rsi_hw *adapter = hw->priv;
 	struct rsi_common *common = adapter->priv;
@@ -1583,12 +1586,14 @@ static int rsi_mac80211_sta_remove(struct ieee80211_hw *hw,
  * rsi_mac80211_set_antenna() - This function is used to configure
  *				tx and rx antennas.
  * @hw: Pointer to the ieee80211_hw structure.
+ * @radio_idx: Radio index
  * @tx_ant: Bitmap for tx antenna
  * @rx_ant: Bitmap for rx antenna
  *
  * Return: 0 on success, Negative error code on failure.
  */
 static int rsi_mac80211_set_antenna(struct ieee80211_hw *hw,
+				    int radio_idx,
 				    u32 tx_ant, u32 rx_ant)
 {
 	struct rsi_hw *adapter = hw->priv;
@@ -1634,12 +1639,14 @@ fail_set_antenna:
  * 				tx and rx antennas.
  *
  * @hw: Pointer to the ieee80211_hw structure.
+ * @radio_idx: Radio index
  * @tx_ant: Bitmap for tx antenna
  * @rx_ant: Bitmap for rx antenna
  * 
  * Return: 0 on success, negative error codes on failure.
  */
 static int rsi_mac80211_get_antenna(struct ieee80211_hw *hw,
+				    int radio_idx,
 				    u32 *tx_ant, u32 *rx_ant)
 {
 	struct rsi_hw *adapter = hw->priv;