Merge "Used single TCP configuration for devices" (268512db) · Commits · e / os / android_frameworks_opt_telephony

src/java/com/android/internal/telephony/data/DataConfigManager.java

+10 −45

Original line number	Diff line number	Diff line
		@@ -17,7 +17,6 @@
		package com.android.internal.telephony.data;

		import android.annotation.NonNull;
		import android.annotation.Nullable;
		import android.annotation.StringDef;
		import android.content.BroadcastReceiver;
		import android.content.Context;
		@@ -43,7 +42,6 @@ import android.telephony.data.ApnSetting;
		import android.text.TextUtils;
		import android.util.IndentingPrintWriter;

		import com.android.internal.R;
		import com.android.internal.telephony.Phone;
		import com.android.internal.telephony.data.DataNetworkController.HandoverRule;
		import com.android.internal.telephony.data.DataRetryManager.DataHandoverRetryRule;
		@@ -219,9 +217,6 @@ public class DataConfigManager extends Handler {
		/** A map of network types to the downlink and uplink bandwidth values for that network type */
		private @NonNull final @DataConfigNetworkType Map<String, DataNetwork.NetworkBandwidth>
		mBandwidthMap = new ConcurrentHashMap<>();
		/** A map of network types to the TCP buffer sizes for that network type */
		private @NonNull final @DataConfigNetworkType Map<String, String> mTcpBufferSizeMap =
		new ConcurrentHashMap<>();
		/** Rules for handover between IWLAN and cellular network. */
		private @NonNull final List<HandoverRule> mHandoverRuleList = new ArrayList<>();

		@@ -298,7 +293,6 @@ public class DataConfigManager extends Handler {
		updateSingleDataNetworkTypeList();
		updateUnmeteredNetworkTypes();
		updateBandwidths();
		updateTcpBuffers();
		updateHandoverRules();

		log("Data config updated. Config is " + (isConfigCarrierSpecific() ? "" : "not ")
		@@ -605,46 +599,19 @@ public class DataConfigManager extends Handler {
		return mCarrierConfig.getInt(CarrierConfigManager.KEY_DEFAULT_MTU_INT);
		}

		/**
		* Update the TCP buffer sizes from the carrier config.
		*/
		private void updateTcpBuffers() {
		synchronized (this) {
		mTcpBufferSizeMap.clear();
		String[] buffers = mCarrierConfig.getStringArray(
		CarrierConfigManager.KEY_TCP_BUFFERS_STRING_ARRAY);
		if (buffers != null) {
		for (String buffer : buffers) {
		// split[0] = network type as string
		// split[1] = rmem_min,rmem_def,rmem_max,wmem_min,wmem_def,wmem_max
		String[] split = buffer.split(":");
		if (split.length != 2) {
		loge("Invalid TCP buffer sizes: " + buffer);
		continue;
		}
		if (split[1].split(",").length != 6) {
		loge("Invalid TCP buffer sizes for " + split[0] + ": " + split[1]);
		continue;
		}
		mTcpBufferSizeMap.put(split[0], split[1]);
		}
		}
		}
		}

		/**
		* Get the TCP config string, used by {@link LinkProperties#setTcpBufferSizes(String)}.
		* The config string will have the following form, with values in bytes:
		* "read_min,read_default,read_max,write_min,write_default,write_max"
		*
		* @param networkType The network type. Note that {@link TelephonyManager#NETWORK_TYPE_LTE_CA}
		* can be used for LTE CA even though it's not a radio access technology.
		* @param serviceState The service state, used to determine NR state.
		* @return The TCP configuration string for the given network type or null if unavailable.
		* Note that starting from Android 13, the TCP buffer size is fixed after boot up, and should
		* never be changed based on carriers or the network types. The value should be configured
		* appropriately based on the device's memory and performance.
		*
		* @return The TCP configuration string.
		*/
		public @Nullable String getTcpConfigString(@NetworkType int networkType,
		@NonNull ServiceState serviceState) {
		return mTcpBufferSizeMap.get(getDataConfigNetworkType(networkType, serviceState));
		public @NonNull String getTcpConfigString() {
		return mResources.getString(com.android.internal.R.string.config_tcp_buffers);
		}

		/**
		@@ -652,7 +619,8 @@ public class DataConfigManager extends Handler {
		* does not complete within the window, the data network will be torn down after timeout.
		*/
		public long getImsDeregistrationDelay() {
		return mResources.getInteger(R.integer.config_delay_for_ims_dereg_millis);
		return mResources.getInteger(
		com.android.internal.R.integer.config_delay_for_ims_dereg_millis);
		}

		/**
		@@ -903,10 +871,7 @@ public class DataConfigManager extends Handler {
		+ shouldResetDataThrottlingWhenTacChanges());
		pw.println("Data service package name=" + getDataServicePackageName());
		pw.println("Default MTU=" + getDefaultMtu());
		pw.println("TCP buffer sizes:");
		pw.increaseIndent();
		mTcpBufferSizeMap.forEach((key, value) -> pw.println(key + ":" + value));
		pw.decreaseIndent();
		pw.println("TCP buffer sizes:" + getTcpConfigString());
		pw.println("getImsDeregistrationDelay=" + getImsDeregistrationDelay());
		pw.println("shouldPersistIwlanDataNetworksWhenDataServiceRestarted="
		+ shouldPersistIwlanDataNetworksWhenDataServiceRestarted());

src/java/com/android/internal/telephony/data/DataNetwork.java

+1 −45

Original line number	Diff line number	Diff line
		@@ -404,9 +404,6 @@ public class DataNetwork extends StateMachine {
		/** The network bandwidth. */
		private @NonNull NetworkBandwidth mNetworkBandwidth = new NetworkBandwidth(14, 14);

		/** The TCP buffer sizes config. */
		private @Nullable String mTcpBufferSizes = "";

		/** Whether {@link NetworkCapabilities#NET_CAPABILITY_TEMPORARILY_NOT_METERED} is supported. */
		private boolean mTempNotMeteredSupported = false;

		@@ -756,7 +753,6 @@ public class DataNetwork extends StateMachine {
		// TODO: Should update suspend state when CSS indicator changes.
		// TODO: Should update suspend state when call started/ended.
		updateSuspendState();
		updateTcpBufferSizes();
		updateBandwidthFromDataConfig();
		break;
		}
		@@ -1489,7 +1485,7 @@ public class DataNetwork extends StateMachine {
		linkProperties.setHttpProxy(proxy);
		}

		linkProperties.setTcpBufferSizes(mTcpBufferSizes);
		linkProperties.setTcpBufferSizes(mDataConfigManager.getTcpConfigString());

		mNetworkSliceInfo = response.getSliceInfo();

		@@ -1515,28 +1511,6 @@ public class DataNetwork extends StateMachine {
		mCid.get(AccessNetworkConstants.TRANSPORT_TYPE_WWAN));
		}

		/**
		* Get the TCP config string.
		*
		* @return The TCP config string used in {@link LinkProperties#setTcpBufferSizes(String)}.
		*/
		private @Nullable String getTcpConfig() {
		ServiceState ss = mPhone.getServiceState();
		NetworkRegistrationInfo nrs = ss.getNetworkRegistrationInfo(
		NetworkRegistrationInfo.DOMAIN_PS, mTransport);
		int networkType = TelephonyManager.NETWORK_TYPE_UNKNOWN;
		if (nrs != null) {
		networkType = nrs.getAccessNetworkTechnology();
		if (networkType == TelephonyManager.NETWORK_TYPE_LTE
		&& nrs.isUsingCarrierAggregation()) {
		// Although LTE_CA is not a real RAT, but since LTE CA generally has higher speed
		// we use LTE_CA to get a different TCP config for LTE CA.
		networkType = TelephonyManager.NETWORK_TYPE_LTE_CA;
		}
		}
		return mDataConfigManager.getTcpConfigString(networkType, ss);
		}

		/**
		* Called when receiving setup data network response from the data service.
		*
		@@ -1695,7 +1669,6 @@ public class DataNetwork extends StateMachine {
		log("onDataConfigUpdated");

		updateBandwidthFromDataConfig();
		updateTcpBufferSizes();
		updateMeteredAndCongested();
		}

		@@ -1761,7 +1734,6 @@ public class DataNetwork extends StateMachine {
		*/
		private void onDisplayInfoChanged() {
		updateBandwidthFromDataConfig();
		updateTcpBufferSizes();
		updateMeteredAndCongested();
		}

		@@ -1779,21 +1751,6 @@ public class DataNetwork extends StateMachine {
		updateNetworkCapabilities();
		}

		/**
		* Update the TCP buffer sizes from carrier configs.
		*/
		private void updateTcpBufferSizes() {
		log("updateTcpBufferSizes");
		mTcpBufferSizes = getTcpConfig();
		LinkProperties linkProperties = new LinkProperties(mLinkProperties);
		linkProperties.setTcpBufferSizes(mTcpBufferSizes);
		if (!linkProperties.equals(mLinkProperties)) {
		mLinkProperties = linkProperties;
		log("sendLinkProperties " + mLinkProperties);
		mNetworkAgent.sendLinkProperties(mLinkProperties);
		}
		}

		/**
		* Update the metered and congested values from carrier configs and subscription overrides
		*/
		@@ -2322,7 +2279,6 @@ public class DataNetwork extends StateMachine {
		pw.println("mLinkProperties=" + mLinkProperties);
		pw.println("mNetworkSliceInfo=" + mNetworkSliceInfo);
		pw.println("mNetworkBandwidth=" + mNetworkBandwidth);
		pw.println("mTcpBufferSizes=" + mTcpBufferSizes);
		pw.println("mTempNotMeteredSupported=" + mTempNotMeteredSupported);
		pw.println("mTempNotMetered=" + mTempNotMetered);
		pw.println("mCongested=" + mCongested);