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>

4 files changed, 11 insertions, 8 deletions

diff --git a/drivers/net/wireless/broadcom/b43/main.c b/drivers/net/wireless/broadcom/b43/main.c
index 7529afd24aed..f1a77c4c445f 100644
--- a/drivers/net/wireless/broadcom/b43/main.c
+++ b/drivers/net/wireless/broadcom/b43/main.c
@@ -3975,7 +3975,7 @@ static void b43_set_retry_limits(struct b43_wldev *dev,
 			long_retry);
 }
 
-static int b43_op_config(struct ieee80211_hw *hw, u32 changed)
+static int b43_op_config(struct ieee80211_hw *hw, int radio_idx, u32 changed)
 {
 	struct b43_wl *wl = hw_to_b43_wl(hw);
 	struct b43_wldev *dev = wl->current_dev;
@@ -5073,7 +5073,7 @@ static int b43_op_start(struct ieee80211_hw *hw)
 	 * may hang the system.
 	 */
 	if (!err)
-		b43_op_config(hw, ~0);
+		b43_op_config(hw, -1, ~0);
 
 	return err;
 }
@@ -5248,7 +5248,7 @@ out:
 	}
 
 	/* reload configuration */
-	b43_op_config(wl->hw, ~0);
+	b43_op_config(wl->hw, -1, ~0);
 	if (wl->vif)
 		b43_op_bss_info_changed(wl->hw, wl->vif, &wl->vif->bss_conf, ~0);
 
diff --git a/drivers/net/wireless/broadcom/b43legacy/main.c b/drivers/net/wireless/broadcom/b43legacy/main.c
index 2370a2e6a2e3..aada342e0b80 100644
--- a/drivers/net/wireless/broadcom/b43legacy/main.c
+++ b/drivers/net/wireless/broadcom/b43legacy/main.c
@@ -2662,7 +2662,7 @@ static void b43legacy_set_retry_limits(struct b43legacy_wldev *dev,
 	b43legacy_shm_write16(dev, B43legacy_SHM_WIRELESS, 0x0007, long_retry);
 }
 
-static int b43legacy_op_dev_config(struct ieee80211_hw *hw,
+static int b43legacy_op_dev_config(struct ieee80211_hw *hw, int radio_idx,
 				   u32 changed)
 {
 	struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
index 5a0b252dfeaf..40a9a8177de6 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
@@ -1637,7 +1637,8 @@ static s32 brcmf_set_retry(struct net_device *ndev, u32 retry, bool l)
 	return err;
 }
 
-static s32 brcmf_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
+static s32 brcmf_cfg80211_set_wiphy_params(struct wiphy *wiphy, int radio_idx,
+					   u32 changed)
 {
 	struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
 	struct net_device *ndev = cfg_to_ndev(cfg);
@@ -2645,7 +2646,8 @@ brcmf_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *ndev,
 
 static s32
 brcmf_cfg80211_set_tx_power(struct wiphy *wiphy, struct wireless_dev *wdev,
-			    enum nl80211_tx_power_setting type, s32 mbm)
+			    int radio_idx, enum nl80211_tx_power_setting type,
+			    s32 mbm)
 {
 	struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
 	struct net_device *ndev = cfg_to_ndev(cfg);
@@ -2696,7 +2698,7 @@ done:
 
 static s32
 brcmf_cfg80211_get_tx_power(struct wiphy *wiphy, struct wireless_dev *wdev,
-			    unsigned int link_id, s32 *dbm)
+			    int radio_idx, unsigned int link_id, s32 *dbm)
 {
 	struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
 	struct brcmf_cfg80211_vif *vif = wdev_to_vif(wdev);
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/mac80211_if.c b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/mac80211_if.c
index 1c3d29dca424..8ab452cf48c4 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/mac80211_if.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/mac80211_if.c
@@ -525,7 +525,8 @@ brcms_ops_remove_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
 	spin_unlock_bh(&wl->lock);
 }
 
-static int brcms_ops_config(struct ieee80211_hw *hw, u32 changed)
+static int brcms_ops_config(struct ieee80211_hw *hw, int radio_idx,
+			    u32 changed)
 {
 	struct ieee80211_conf *conf = &hw->conf;
 	struct brcms_info *wl = hw->priv;