Merge "Add 5G TCP buffer size" (6c8cd941) · Commits · e / os / android_frameworks_opt_telephony

src/java/com/android/internal/telephony/dataconnection/DataConnection.java

+36 −7

Original line number	Diff line number	Diff line
		@@ -44,6 +44,7 @@ import android.os.SystemProperties;
		import android.provider.Telephony;
		import android.telephony.AccessNetworkConstants.TransportType;
		import android.telephony.DataFailCause;
		import android.telephony.NetworkRegistrationState;
		import android.telephony.Rlog;
		import android.telephony.ServiceState;
		import android.telephony.TelephonyManager;
		@@ -110,6 +111,9 @@ public class DataConnection extends StateMachine {

		private static final String NETWORK_TYPE = "MOBILE";

		private static final String RAT_NAME_5G = "nr";
		private static final String RAT_NAME_EVDO = "evdo";

		// The data connection providing default Internet connection will have a higher score of 50.
		// Other connections will have a slightly lower score of 45. The intention is other connections
		// will not cause ConnectivityService to tear down default internet connection. For example,
		@@ -882,6 +886,11 @@ public class DataConnection extends StateMachine {
		return true;
		}

		/**
		* TCP buffer size config based on the ril technology. There are 6 parameters
		* read_min, read_default, read_max, write_min, write_default, write_max in the TCP buffer
		* config string and they are separated by a comma. The unit of these parameters is byte.
		*/
		private static final String TCP_BUFFER_SIZES_GPRS = "4092,8760,48000,4096,8760,48000";
		private static final String TCP_BUFFER_SIZES_EDGE = "4093,26280,70800,4096,16384,70800";
		private static final String TCP_BUFFER_SIZES_UMTS = "58254,349525,1048576,58254,349525,1048576";
		@@ -892,7 +901,10 @@ public class DataConnection extends StateMachine {
		private static final String TCP_BUFFER_SIZES_HSPA = "40778,244668,734003,16777,100663,301990";
		private static final String TCP_BUFFER_SIZES_LTE =
		"524288,1048576,2097152,262144,524288,1048576";
		private static final String TCP_BUFFER_SIZES_HSPAP= "122334,734003,2202010,32040,192239,576717";
		private static final String TCP_BUFFER_SIZES_HSPAP =
		"122334,734003,2202010,32040,192239,576717";
		private static final String TCP_BUFFER_SIZES_NR =
		"2097152,6291456,16777216,512000,2097152,8388608";

		private void updateTcpBufferSizes(int rilRat) {
		String sizes = null;
		@@ -907,7 +919,13 @@ public class DataConnection extends StateMachine {
		if (rilRat == ServiceState.RIL_RADIO_TECHNOLOGY_EVDO_0 \|\|
		rilRat == ServiceState.RIL_RADIO_TECHNOLOGY_EVDO_A \|\|
		rilRat == ServiceState.RIL_RADIO_TECHNOLOGY_EVDO_B) {
		ratName = "evdo";
		ratName = RAT_NAME_EVDO;
		}

		// NR 5G Non-Standalone use LTE cell as the primary cell, the ril technology is LTE in this
		// case. We use NR 5G TCP buffer size when connected to NR 5G Non-Standalone network.
		if (rilRat == ServiceState.RIL_RADIO_TECHNOLOGY_LTE && isNRConnected()) {
		ratName = RAT_NAME_5G;
		}

		// in the form: "ratname:rmem_min,rmem_def,rmem_max,wmem_min,wmem_def,wmem_max"
		@@ -955,7 +973,12 @@ public class DataConnection extends StateMachine {
		break;
		case ServiceState.RIL_RADIO_TECHNOLOGY_LTE:
		case ServiceState.RIL_RADIO_TECHNOLOGY_LTE_CA:
		// Use NR 5G TCP buffer size when connected to NR 5G Non-Standalone network.
		if (isNRConnected()) {
		sizes = TCP_BUFFER_SIZES_NR;
		} else {
		sizes = TCP_BUFFER_SIZES_LTE;
		}
		break;
		case ServiceState.RIL_RADIO_TECHNOLOGY_HSPAP:
		sizes = TCP_BUFFER_SIZES_HSPAP;
		@@ -2794,6 +2817,12 @@ public class DataConnection extends StateMachine {
		return "{" + toStringSimple() + " mApnContexts=" + mApnContexts + "}";
		}

		/** Check if the device is connected to NR 5G Non-Standalone network. */
		private boolean isNRConnected() {
		return mPhone.getServiceState().getNrStatus()
		== NetworkRegistrationState.NR_STATUS_CONNECTED;
		}

		private void dumpToLog() {
		dump(null, new PrintWriter(new StringWriter(0)) {
		@Override