From ff5cdddc754c347baa757ca225e18e40d8b263a4 Mon Sep 17 00:00:00 2001
From: Sujuan Chen <sujuan.chen@mediatek.com>
Date: Wed, 18 May 2022 15:10:22 +0800
Subject: [PATCH 12/15] mac80211: mtk: add fill receive path ops to get wed idx

Signed-off-by: Sujuan Chen <sujuan.chen@mediatek.com>
---
 include/net/mac80211.h    |  5 +++++
 net/mac80211/driver-ops.h | 13 +++++++++++++
 net/mac80211/iface.c      | 23 +++++++++++++++++++++++
 net/mac80211/util.c       |  9 +++++++++
 4 files changed, 50 insertions(+)

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 6e5ad3e..cc02639 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -4207,6 +4207,8 @@ struct ieee80211_prep_tx_info {
  *	disable background CAC/radar detection.
  * @net_fill_forward_path: Called from .ndo_fill_forward_path in order to
  *	resolve a path for hardware flow offloading
+ * @net_fill_receive_path: Called from .ndo_fill_receive_path in order to
+ *	get a path for hardware flow offloading
  * @change_vif_links: Change the valid links on an interface, note that while
  *	removing the old link information is still valid (link_conf pointer),
  *	but may immediately disappear after the function returns. The old or
@@ -4570,6 +4572,9 @@ struct ieee80211_ops {
 				     struct ieee80211_sta *sta,
 				     struct net_device_path_ctx *ctx,
 				     struct net_device_path *path);
+	int (*net_fill_receive_path)(struct ieee80211_hw *hw,
+				     struct net_device_path_ctx *ctx,
+				     struct net_device_path *path);
 	int (*change_vif_links)(struct ieee80211_hw *hw,
 				struct ieee80211_vif *vif,
 				u16 old_links, u16 new_links,
diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h
index 1c3a2c9..0057535 100644
--- a/net/mac80211/driver-ops.h
+++ b/net/mac80211/driver-ops.h
@@ -1470,6 +1470,19 @@ static inline int drv_net_fill_forward_path(struct ieee80211_local *local,
 	return ret;
 }
 
+static inline int drv_net_fill_receive_path(struct ieee80211_local *local,
+					    struct net_device_path_ctx *ctx,
+					    struct net_device_path *path)
+{
+	int ret = -EOPNOTSUPP;
+
+	if (local->ops->net_fill_receive_path)
+		ret = local->ops->net_fill_receive_path(&local->hw,
+							ctx, path);
+
+	return ret;
+}
+
 static inline int drv_net_setup_tc(struct ieee80211_local *local,
 				   struct ieee80211_sub_if_data *sdata,
 				   struct net_device *dev,
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index a18f80d..b82065c 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -936,6 +936,28 @@ out:
 	return ret;
 }
 
+static int ieee80211_netdev_fill_receive_path(struct net_device_path_ctx *ctx,
+					      struct net_device_path *path)
+{
+	struct ieee80211_sub_if_data *sdata;
+	struct ieee80211_local *local;
+	int ret = -ENOENT;
+
+	sdata = IEEE80211_DEV_TO_SUB_IF(ctx->dev);
+	local = sdata->local;
+
+	if (!local->ops->net_fill_receive_path)
+		return -EOPNOTSUPP;
+
+	rcu_read_lock();
+
+	ret = drv_net_fill_receive_path(local, ctx, path);
+
+	rcu_read_unlock();
+
+	return ret;
+}
+
 static const struct net_device_ops ieee80211_dataif_8023_ops = {
 	.ndo_open		= ieee80211_open,
 	.ndo_stop		= ieee80211_stop,
@@ -945,6 +967,7 @@ static const struct net_device_ops ieee80211_dataif_8023_ops = {
 	.ndo_set_mac_address	= ieee80211_change_mac,
 	.ndo_get_stats64	= ieee80211_get_stats64,
 	.ndo_fill_forward_path	= ieee80211_netdev_fill_forward_path,
+	.ndo_fill_receive_path	= ieee80211_netdev_fill_receive_path,
 	.ndo_setup_tc		= ieee80211_netdev_setup_tc,
 };
 
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 608f927..fd63ee3 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -914,6 +914,15 @@ struct wireless_dev *ieee80211_vif_to_wdev(struct ieee80211_vif *vif)
 }
 EXPORT_SYMBOL_GPL(ieee80211_vif_to_wdev);
 
+struct net_device *ieee80211_vif_to_netdev(struct ieee80211_vif *vif)
+{
+	if (!vif)
+		return NULL;
+
+	return vif_to_sdata(vif)->dev;
+}
+EXPORT_SYMBOL_GPL(ieee80211_vif_to_netdev);
+
 /*
  * Nothing should have been stuffed into the workqueue during
  * the suspend->resume cycle. Since we can't check each caller
-- 
2.18.0