qcacld-3.0: add osif API to send tcp param update

Add new osif API to send TCP param update.

Change-Id: I487fabb53364703272f7e123802ecdb5fd77c3e8
CRs-Fixed: 3164977

components/dp/dispatcher/inc/wlan_dp_public_struct.h

@@ -27,6 +27,15 @@
 #include "wlan_objmgr_cmn.h"
 #include "wlan_objmgr_global_obj.h"
 #include "qdf_status.h"
+#include <wlan_nlink_common.h>
+
+/**
+ * wlan_tp_data : union of TCP msg for Tx and Rx Dir
+ */
+union wlan_tp_data {
+	struct wlan_tx_tp_data tx_tp_data;
+	struct wlan_rx_tp_data rx_tp_data;
+};
 
 /**
  * struct wlan_dp_psoc_callbacks - struct containing callback

os_if/dp/inc/os_if_dp.h

@@ -34,12 +34,21 @@
 void osif_dp_classify_pkt(struct sk_buff *skb);
 
 #ifdef WLAN_FEATURE_DP_BUS_BANDWIDTH
+/**
+ * osif_dp_send_tcp_param_update_event() - Send vendor event to update
+ * TCP parameter through Wi-Fi HAL
+ * @psoc: Pointer to psoc context
+ * @data: Parameters to update
+ * @dir: Direction(tx/rx) to update
+ *
+ * Return: None
+ */
 void osif_dp_send_tcp_param_update_event(struct wlan_objmgr_psoc *psoc,
-					 void *data, uint8_t dir);
+					 union wlan_tp_data *data, uint8_t dir);
 #else
 static inline
 void osif_dp_send_tcp_param_update_event(struct wlan_objmgr_psoc *psoc,
-					 void *data, uint8_t dir)
+					 union wlan_tp_data *data, uint8_t dir)
 {
 }
 #endif /* WLAN_FEATURE_DP_BUS_BANDWIDTH */

os_if/dp/src/os_if_dp.c

@@ -28,18 +28,113 @@
 #include "qca_vendor.h"
 
 #ifdef WLAN_FEATURE_DP_BUS_BANDWIDTH
-/**
- * osif_dp_send_tcp_param_update_event() - Send vendor event to update
- * TCP parameter through Wi-Fi HAL
- * @psoc: Pointer to psoc context
- * @data: Parameters to update
- * @dir: Direction(tx/rx) to update
- *
- * Return: None
- */
 void osif_dp_send_tcp_param_update_event(struct wlan_objmgr_psoc *psoc,
-					 void *data,
+					 union wlan_tp_data *data,
 					 uint8_t dir)
 {
+	struct sk_buff *vendor_event;
+	struct wlan_objmgr_pdev *pdev;
+	struct pdev_osif_priv *os_priv;
+	uint32_t event_len;
+	bool tcp_limit_output = false;
+	bool tcp_del_ack_ind_enabled = false;
+	bool tcp_adv_win_scl_enabled = false;
+	enum wlan_tp_level next_tp_level = WLAN_SVC_TP_NONE;
+
+	event_len = sizeof(uint8_t) + sizeof(uint8_t) + NLMSG_HDRLEN;
+	pdev = wlan_objmgr_get_pdev_by_id(psoc, 0, WLAN_OSIF_ID);
+	os_priv = wlan_pdev_get_ospriv(pdev);
+
+	if (dir == 0) /*TX Flow */ {
+		struct wlan_tx_tp_data *tx_tp_data =
+				(struct wlan_tx_tp_data *)data;
+
+		next_tp_level = tx_tp_data->level;
+
+		if (tx_tp_data->tcp_limit_output) {
+			/* TCP_LIMIT_OUTPUT_BYTES */
+			event_len += sizeof(uint32_t);
+			tcp_limit_output = true;
+		}
+	} else if (dir == 1) /* RX Flow */ {
+		struct wlan_rx_tp_data *rx_tp_data =
+				(struct wlan_rx_tp_data *)data;
+
+		next_tp_level = rx_tp_data->level;
+
+		if (rx_tp_data->rx_tp_flags & TCP_DEL_ACK_IND_MASK) {
+			event_len += sizeof(uint32_t); /* TCP_DELACK_SEG */
+			tcp_del_ack_ind_enabled = true;
+		}
+		if (rx_tp_data->rx_tp_flags & TCP_ADV_WIN_SCL_MASK) {
+			event_len += sizeof(uint32_t); /* TCP_ADV_WIN_SCALE */
+			tcp_adv_win_scl_enabled = true;
+		}
+	} else {
+		dp_err("Invalid Direction [%d]", dir);
+		wlan_objmgr_pdev_release_ref(pdev, WLAN_DP_ID);
+		return;
+	}
+
+	vendor_event =
+	cfg80211_vendor_event_alloc(
+			os_priv->wiphy,
+			NULL, event_len,
+			QCA_NL80211_VENDOR_SUBCMD_THROUGHPUT_CHANGE_EVENT_INDEX,
+			GFP_KERNEL);
+
+	if (!vendor_event) {
+		dp_err("cfg80211_vendor_event_alloc failed");
+		wlan_objmgr_pdev_release_ref(pdev, WLAN_DP_ID);
+		return;
+	}
+
+	if (nla_put_u8(
+		vendor_event,
+		QCA_WLAN_VENDOR_ATTR_THROUGHPUT_CHANGE_DIRECTION,
+		dir))
+		goto tcp_param_change_nla_failed;
+
+	if (nla_put_u8(
+		vendor_event,
+		QCA_WLAN_VENDOR_ATTR_THROUGHPUT_CHANGE_THROUGHPUT_LEVEL,
+		(next_tp_level == WLAN_SVC_TP_LOW ?
+		QCA_WLAN_THROUGHPUT_LEVEL_LOW :
+		QCA_WLAN_THROUGHPUT_LEVEL_HIGH)))
+		goto tcp_param_change_nla_failed;
+
+	if (tcp_limit_output &&
+	    nla_put_u32(
+		vendor_event,
+		QCA_WLAN_VENDOR_ATTR_THROUGHPUT_CHANGE_TCP_LIMIT_OUTPUT_BYTES,
+		(next_tp_level == WLAN_SVC_TP_LOW ?
+		 TCP_LIMIT_OUTPUT_BYTES_LOW :
+		 TCP_LIMIT_OUTPUT_BYTES_HI)))
+		goto tcp_param_change_nla_failed;
+
+	if (tcp_del_ack_ind_enabled &&
+	    (nla_put_u32(
+		vendor_event,
+		QCA_WLAN_VENDOR_ATTR_THROUGHPUT_CHANGE_TCP_DELACK_SEG,
+		(next_tp_level == WLAN_SVC_TP_LOW ?
+		 TCP_DEL_ACK_LOW : TCP_DEL_ACK_HI))))
+		goto tcp_param_change_nla_failed;
+
+	if (tcp_adv_win_scl_enabled &&
+	    (nla_put_u32(
+		vendor_event,
+		QCA_WLAN_VENDOR_ATTR_THROUGHPUT_CHANGE_TCP_ADV_WIN_SCALE,
+		(next_tp_level == WLAN_SVC_TP_LOW ?
+		 WIN_SCALE_LOW : WIN_SCALE_HI))))
+		goto tcp_param_change_nla_failed;
+
+	cfg80211_vendor_event(vendor_event, GFP_KERNEL);
+	wlan_objmgr_pdev_release_ref(pdev, WLAN_DP_ID);
+	return;
+
+tcp_param_change_nla_failed:
+	wlan_objmgr_pdev_release_ref(pdev, WLAN_DP_ID);
+	dp_err("nla_put api failed");
+	kfree_skb(vendor_event);
 }
 #endif /*WLAN_FEATURE_DP_BUS_BANDWIDTH*/