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 <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Johannes Berg <[email protected]>

1 files changed, 6 insertions, 3 deletions

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
index 956b491ae5a4..619d822efa5b 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
@@ -298,7 +298,8 @@ static const struct wiphy_iftype_ext_capab add_iftypes_ext_capa[] = {
 	},
 };
 
-int iwl_mvm_op_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant)
+int iwl_mvm_op_get_antenna(struct ieee80211_hw *hw, int radio_idx,
+			   u32 *tx_ant, u32 *rx_ant)
 {
 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
 	*tx_ant = iwl_mvm_get_valid_tx_ant(mvm);
@@ -306,7 +307,8 @@ int iwl_mvm_op_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant)
 	return 0;
 }
 
-int iwl_mvm_op_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant)
+int iwl_mvm_op_set_antenna(struct ieee80211_hw *hw, int radio_idx, u32 tx_ant,
+			   u32 rx_ant)
 {
 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
 
@@ -4249,7 +4251,8 @@ int iwl_mvm_mac_sta_state_common(struct ieee80211_hw *hw,
 	return ret;
 }
 
-int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
+int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, int radio_idx,
+				  u32 value)
 {
 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);