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From:   Tamizh Chelvam <tamizhr@codeaurora.org>
To:     johannes@sipsolutions.net
Cc:     linux-wireless@vger.kernel.org,
        Tamizh chelvam <tamizhr@codeaurora.org>
Subject: [PATCHv9 6/6] mac80211: Add api to support configuring TID specific configuration
Date:   Mon, 13 Jan 2020 18:41:30 +0530
Message-Id: <1578921090-9758-7-git-send-email-tamizhr@codeaurora.org>
In-Reply-To: <1578921090-9758-1-git-send-email-tamizhr@codeaurora.org>
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From: Tamizh chelvam <tamizhr@codeaurora.org>

Implement drv_set_tid_config api to allow TID specific
configuration and drv_reset_tid_config api to reset peer
specific TID configuration. This per-TID onfiguration
will be applied for all the connected stations when MAC is NULL.

Signed-off-by: Tamizh chelvam <tamizhr@codeaurora.org>
---
 include/net/mac80211.h    |   10 ++++++++
 net/mac80211/cfg.c        |   56 +++++++++++++++++++++++++++++++++++++++++++++
 net/mac80211/driver-ops.h |   27 ++++++++++++++++++++++
 3 files changed, 93 insertions(+)

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 682fd2f..c50713a 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -3775,6 +3775,9 @@ enum ieee80211_reconfig_type {
  *
  * @start_pmsr: start peer measurement (e.g. FTM) (this call can sleep)
  * @abort_pmsr: abort peer measurement (this call can sleep)
+ * @set_tid_config: Apply TID specific configurations. This callback may sleep.
+ * @reset_tid_config: Reset TID specific configuration for the peer.
+ *	This callback may sleep.
  */
 struct ieee80211_ops {
 	void (*tx)(struct ieee80211_hw *hw,
@@ -4079,6 +4082,13 @@ struct ieee80211_ops {
 			  struct cfg80211_pmsr_request *request);
 	void (*abort_pmsr)(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 			   struct cfg80211_pmsr_request *request);
+	int (*set_tid_config)(struct ieee80211_hw *hw,
+			      struct ieee80211_vif *vif,
+			      struct ieee80211_sta *sta,
+			      struct ieee80211_tid_config *tid_conf);
+	int (*reset_tid_config)(struct ieee80211_hw *hw,
+				struct ieee80211_vif *vif,
+				struct ieee80211_sta *sta, u8 tid);
 };
 
 /**
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 4fb7f1f..f0f7e42 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -3942,6 +3942,60 @@ static int ieee80211_get_txq_stats(struct wiphy *wiphy,
 	return drv_abort_pmsr(local, sdata, request);
 }
 
+static int ieee80211_set_tid_config(struct wiphy *wiphy,
+				    struct net_device *dev,
+				    struct ieee80211_tid_config *tid_conf)
+{
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	struct sta_info *sta;
+	int ret;
+
+	if (!sdata->local->ops->set_tid_config)
+		return -EOPNOTSUPP;
+
+	if (!tid_conf->peer)
+		return drv_set_tid_config(sdata->local, sdata, NULL, tid_conf);
+
+	mutex_lock(&sdata->local->sta_mtx);
+
+	sta = sta_info_get_bss(sdata, tid_conf->peer);
+	if (!sta) {
+		mutex_unlock(&sdata->local->sta_mtx);
+		return -ENOENT;
+	}
+
+	ret = drv_set_tid_config(sdata->local, sdata, &sta->sta, tid_conf);
+	mutex_unlock(&sdata->local->sta_mtx);
+	return ret;
+}
+
+static int ieee80211_reset_tid_config(struct wiphy *wiphy,
+				      struct net_device *dev,
+				      const u8 *peer, u8 tid)
+{
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	struct sta_info *sta;
+	int ret;
+
+	if (!sdata->local->ops->reset_tid_config)
+		return -EOPNOTSUPP;
+
+	if (!peer)
+		return -EINVAL;
+
+	mutex_lock(&sdata->local->sta_mtx);
+
+	sta = sta_info_get_bss(sdata, peer);
+	if (!sta) {
+		mutex_unlock(&sdata->local->sta_mtx);
+		return -ENOENT;
+	}
+
+	ret = drv_reset_tid_config(sdata->local, sdata, &sta->sta, tid);
+	mutex_unlock(&sdata->local->sta_mtx);
+	return ret;
+}
+
 const struct cfg80211_ops mac80211_config_ops = {
 	.add_virtual_intf = ieee80211_add_iface,
 	.del_virtual_intf = ieee80211_del_iface,
@@ -4040,4 +4094,6 @@ static int ieee80211_get_txq_stats(struct wiphy *wiphy,
 	.start_pmsr = ieee80211_start_pmsr,
 	.abort_pmsr = ieee80211_abort_pmsr,
 	.probe_mesh_link = ieee80211_probe_mesh_link,
+	.set_tid_config = ieee80211_set_tid_config,
+	.reset_tid_config = ieee80211_reset_tid_config,
 };
diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h
index 2c9b3eb8..dcbd105 100644
--- a/net/mac80211/driver-ops.h
+++ b/net/mac80211/driver-ops.h
@@ -1358,4 +1358,31 @@ static inline void drv_del_nan_func(struct ieee80211_local *local,
 	trace_drv_return_void(local);
 }
 
+static inline int drv_set_tid_config(struct ieee80211_local *local,
+				     struct ieee80211_sub_if_data *sdata,
+				     struct ieee80211_sta *sta,
+				     struct ieee80211_tid_config *tid_conf)
+{
+	int ret;
+
+	might_sleep();
+	ret = local->ops->set_tid_config(&local->hw, &sdata->vif, sta,
+					 tid_conf);
+	trace_drv_return_int(local, ret);
+
+	return ret;
+}
+
+static inline int drv_reset_tid_config(struct ieee80211_local *local,
+				       struct ieee80211_sub_if_data *sdata,
+				       struct ieee80211_sta *sta, u8 tid)
+{
+	int ret;
+
+	might_sleep();
+	ret = local->ops->reset_tid_config(&local->hw, &sdata->vif, sta, tid);
+	trace_drv_return_int(local, ret);
+
+	return ret;
+}
 #endif /* __MAC80211_DRIVER_OPS */
-- 
1.7.9.5