qcacld-3.0: Add sta keep alive interval cmd support

Add support to dynamically set keep alive interval
for STA interfce.

Change-Id: I9aceaa03866f819e5ea169778a57feff053a39d6
CRs-Fixed: 3795405

core/hdd/inc/wlan_hdd_main.h

@@ -1296,6 +1296,7 @@ struct wlan_hdd_tx_power {
  * @tx_power: Structure to hold connection tx Power info
  * @tx_latency_cfg: configuration for per-link transmit latency statistics
  * @link_state_cached_timestamp: link state cached timestamp
+ * @keep_alive_interval: user configured STA keep alive interval
  */
 struct hdd_adapter {
 	uint32_t magic;
@@ -1493,6 +1494,7 @@ struct hdd_adapter {
 #ifdef WLAN_FEATURE_11BE_MLO
 	qdf_time_t link_state_cached_timestamp;
 #endif
+	uint16_t keep_alive_interval;
 };
 
 #define WLAN_HDD_GET_STATION_CTX_PTR(link_info) (&(link_info)->session.station)

core/hdd/src/wlan_hdd_cfg80211.c

@@ -8646,6 +8646,8 @@ const struct nla_policy wlan_hdd_wifi_config_policy[
 	[QCA_WLAN_VENDOR_ATTR_CONFIG_COEX_TRAFFIC_SHAPING_MODE] = {
 		.type = NLA_U8},
 	[QCA_WLAN_VENDOR_ATTR_CONFIG_BTM_SUPPORT] = {.type = NLA_U8},
+	[QCA_WLAN_VENDOR_ATTR_CONFIG_KEEP_ALIVE_INTERVAL] = {
+		.type = NLA_U16},
 };
 
 #define WLAN_MAX_LINK_ID 15
@@ -11767,6 +11769,81 @@ hdd_set_coex_traffic_shaping_mode(struct wlan_hdd_link_info *link_info,
 	return ret;
 }
 
+#define STA_KEEPALIVE_INTERVAL_MAX 60
+#define STA_KEEPALIVE_INTERVAL_MIN 5
+
+int hdd_vdev_send_sta_keep_alive_interval(
+				struct wlan_hdd_link_info *link_info,
+				struct hdd_context *hdd_ctx,
+				uint16_t keep_alive_interval)
+{
+	struct keep_alive_req request;
+
+	qdf_mem_zero(&request, sizeof(request));
+
+	request.timePeriod = keep_alive_interval;
+	request.packetType = WLAN_KEEP_ALIVE_NULL_PKT;
+
+	if (QDF_STATUS_SUCCESS !=
+	    sme_set_keep_alive(hdd_ctx->mac_handle, link_info->vdev_id,
+			       &request)) {
+		hdd_err("Failure to execute Keep Alive");
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+void wlan_hdd_save_sta_keep_alive_interval(struct hdd_adapter *adapter,
+					   uint16_t keep_alive_interval)
+{
+	adapter->keep_alive_interval = keep_alive_interval;
+}
+
+/**
+ * hdd_vdev_set_sta_keep_alive_interval() - Set sta keep alive interval
+ * @link_info: Link info pointer.
+ * @attr: NL attribute pointer.
+ *
+ * Return: 0 on success, negative on failure.
+ */
+static int hdd_vdev_set_sta_keep_alive_interval(
+				struct wlan_hdd_link_info *link_info,
+				const struct nlattr *attr)
+{
+	struct hdd_adapter *adapter = link_info->adapter;
+	struct hdd_context *hdd_ctx = WLAN_HDD_GET_CTX(adapter);
+	enum QDF_OPMODE device_mode = link_info->adapter->device_mode;
+	uint16_t keep_alive_interval;
+
+	keep_alive_interval = nla_get_u16(attr);
+	if (keep_alive_interval > STA_KEEPALIVE_INTERVAL_MAX ||
+	    keep_alive_interval < STA_KEEPALIVE_INTERVAL_MIN) {
+		hdd_err("Sta keep alive period: %d is out of range",
+			keep_alive_interval);
+		return -EINVAL;
+	}
+
+	hdd_debug("sta keep alive interval = %u", keep_alive_interval);
+
+	if (device_mode != QDF_STA_MODE) {
+		hdd_debug("This command is not supported for %s device mode",
+			  device_mode_to_string(device_mode));
+		return -EINVAL;
+	}
+
+	if (!hdd_is_vdev_in_conn_state(link_info)) {
+		hdd_debug("Vdev (id %d) not in connected/started state, cannot accept command",
+			  link_info->vdev_id);
+		return -EINVAL;
+	}
+
+	wlan_hdd_save_sta_keep_alive_interval(adapter, keep_alive_interval);
+
+	return hdd_vdev_send_sta_keep_alive_interval(link_info, hdd_ctx,
+						     keep_alive_interval);
+}
+
 #ifdef WLAN_FEATURE_11BE_MLO
 static int hdd_test_config_emlsr_mode(struct hdd_context *hdd_ctx,
 				      bool cfg_val)
@@ -12472,6 +12549,8 @@ static const struct independent_setters independent_setters[] = {
 	 hdd_set_coex_traffic_shaping_mode},
 	{QCA_WLAN_VENDOR_ATTR_CONFIG_BTM_SUPPORT,
 	 hdd_set_btm_support_config},
+	{QCA_WLAN_VENDOR_ATTR_CONFIG_KEEP_ALIVE_INTERVAL,
+	 hdd_vdev_set_sta_keep_alive_interval},
 };
 
 #ifdef WLAN_FEATURE_ELNA

core/hdd/src/wlan_hdd_cfg80211.h

@@ -1,6 +1,6 @@
 /*
  * Copyright (c) 2012-2021 The Linux Foundation. All rights reserved.
- * Copyright (c) 2021-2023 Qualcomm Innovation Center, Inc. All rights reserved.
+ * Copyright (c) 2021-2024 Qualcomm Innovation Center, Inc. All rights reserved.
  *
  * Permission to use, copy, modify, and/or distribute this software for
  * any purpose with or without fee is hereby granted, provided that the
@@ -1165,4 +1165,26 @@ wlan_hdd_ml_sap_get_peer(struct wlan_objmgr_vdev *vdev,
 	return NULL;
 }
 #endif /* WLAN_FEATURE_11BE_MLO && CFG80211_SINGLE_NETDEV_MULTI_LINK_SUPPORT */
+
+/**
+ * hdd_vdev_send_sta_keep_alive_interval - Send sta keep alive interval to fw
+ * @link_info: Link info pointer.
+ * @hdd_ctx: HDD context pointer
+ * @keep_alive_interval: STA keep alive interval
+ *
+ * Return: 0 on success, negative on failure
+ */
+int hdd_vdev_send_sta_keep_alive_interval(struct wlan_hdd_link_info *link_info,
+					  struct hdd_context *hdd_ctx,
+					  uint16_t keep_alive_interval);
+
+/**
+ * wlan_hdd_save_sta_keep_alive_interval() - Save STA keep alive interval
+ * @adapter: HDD adapter pointer
+ * @sta_alive_interval: STA keep alive interval
+ *
+ * Return: None.
+ */
+void wlan_hdd_save_sta_keep_alive_interval(struct hdd_adapter *adapter,
+					   uint16_t sta_alive_interval);
 #endif

core/hdd/src/wlan_hdd_cm_connect.c

@@ -1795,8 +1795,14 @@ hdd_cm_connect_success_pre_user_update(struct wlan_objmgr_vdev *vdev,
 		link_info->vdev_id, QDF_TRACE_DEFAULT_PDEV_ID,
 		QDF_PROTO_TYPE_MGMT, QDF_PROTO_MGMT_ASSOC));
 
-	if (is_roam)
+	if (is_roam) {
 		ucfg_dp_nud_indicate_roam(vdev);
+
+		if (adapter->keep_alive_interval)
+			hdd_vdev_send_sta_keep_alive_interval(link_info,
+						hdd_ctx,
+						adapter->keep_alive_interval);
+	}
 	 /* hdd_objmgr_set_peer_mlme_auth_state */
 }
 

core/hdd/src/wlan_hdd_cm_disconnect.c

@@ -1,6 +1,6 @@
 /*
  * Copyright (c) 2012-2021, The Linux Foundation. All rights reserved.
- * Copyright (c) 2022-2023 Qualcomm Innovation Center, Inc. All rights reserved.
+ * Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights reserved.
  *
  * Permission to use, copy, modify, and/or distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above
@@ -165,6 +165,36 @@ __hdd_cm_disconnect_handler_pre_user_update(struct wlan_hdd_link_info *link_info
 	hdd_place_marker(adapter, "DISCONNECTED", NULL);
 }
 
+/**
+ * hdd_reset_sta_keep_alive_interval() - Reset STA keep alive interval
+ * @link_info: Link info pointer.
+ * @hdd_ctx: HDD context pointer.
+ *
+ * Return: None.
+ */
+static void
+hdd_reset_sta_keep_alive_interval(struct wlan_hdd_link_info *link_info,
+				  struct hdd_context *hdd_ctx)
+{
+	enum QDF_OPMODE device_mode = link_info->adapter->device_mode;
+	uint32_t keep_alive_interval;
+
+	if (!link_info->adapter->keep_alive_interval)
+		return;
+
+	if (device_mode != QDF_STA_MODE) {
+		hdd_debug("Not supported for device mode %s = ",
+			  device_mode_to_string(device_mode));
+		return;
+	}
+
+	wlan_hdd_save_sta_keep_alive_interval(link_info->adapter, 0);
+	ucfg_mlme_get_sta_keep_alive_period(hdd_ctx->psoc,
+					    &keep_alive_interval);
+	hdd_vdev_send_sta_keep_alive_interval(link_info, hdd_ctx,
+					      keep_alive_interval);
+}
+
 void
 __hdd_cm_disconnect_handler_post_user_update(struct wlan_hdd_link_info *link_info,
 					     struct wlan_objmgr_vdev *vdev,
@@ -250,6 +280,7 @@ __hdd_cm_disconnect_handler_post_user_update(struct wlan_hdd_link_info *link_inf
 
 	ucfg_dp_nud_reset_tracking(vdev);
 	hdd_reset_limit_off_chan(adapter);
+	hdd_reset_sta_keep_alive_interval(link_info, hdd_ctx);
 
 	hdd_cm_print_bss_info(sta_ctx);
 }

core/wma/src/wma_mgmt.c

@@ -873,7 +873,9 @@ void wma_set_sta_keep_alive(tp_wma_handle wma, uint8_t vdev_id,
 	params.timeperiod = timeperiod;
 	if (intr) {
 		if (intr->bss_max_idle_period) {
-			params.timeperiod = intr->bss_max_idle_period;
+			if (intr->bss_max_idle_period < timeperiod)
+				params.timeperiod = intr->bss_max_idle_period;
+
 			if (method == WMI_KEEP_ALIVE_NULL_PKT)
 				params.method = WMI_KEEP_ALIVE_MGMT_FRAME;
 		}