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Add support for RAT-based TCP buffer sizes

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If the RAT-based resource overlay is not set,
config_tcp_buffers will be used instead.

Test: atest FrameworksTelephonyTests
Bug: 222323543
Change-Id: I55ccb2a2f0b2408e97aa851b5a6e77cf2abac9f2
This commit is contained in:
Sarah Chin
2022-03-28 21:35:23 -07:00
parent 589c1ad6ba
commit bef8fde211
2 changed files with 12 additions and 7 deletions
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18
core/res/res/values/config.xml
View File

@@ -2693,23 +2693,27 @@
rat-name:rmem_min,rmem_def,rmem_max,wmem_min,wmem_def,wmem_max
If no value is found for the rat-name in use, the system default will be applied.
This is deprecated. Please use config_tcp_buffers.
This is deprecated. Please use config_mobile_tcp_buffers for rat-based TCP buffers sizes or
config_tcp_buffers for rat-independent TCP buffer sizes.
-->
<string-array name="config_mobile_tcp_buffers">
</string-array>
<!-- Configure tcp buffer sizes per network type in the form:
network-type:rmem_min,rmem_def,rmem_max,wmem_min,wmem_def,wmem_max
The network-type must be a valid DataConfigNetworkType value. If no value is found for the
network-type in use, config_tcp_buffers will be used instead.
-->
<string-array name="config_network_type_tcp_buffers">
</string-array>
<!-- Configure tcp buffer sizes in the form:
rmem_min,rmem_def,rmem_max,wmem_min,wmem_def,wmem_max
If this is configured as an empty string, the system default will be applied.
For now this config is used by mobile data only. In the future it should be
used by Wi-Fi as well.
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. It is recommended to use lower
values if the device has low memory or doesn't support high-speed network such like LTE,
NR, or Wifi.
-->
<string name="config_tcp_buffers" translatable="false"></string>

1
core/res/res/values/symbols.xml
View File

@@ -472,6 +472,7 @@
<java-symbol type="integer" name="config_safe_media_volume_usb_mB" />
<java-symbol type="integer" name="config_mobile_mtu" />
<java-symbol type="array" name="config_mobile_tcp_buffers" />
<java-symbol type="array" name="config_network_type_tcp_buffers" />
<java-symbol type="string" name="config_tcp_buffers" />
<java-symbol type="bool" name="config_force_enable_telephony_new_data_stack" />
<java-symbol type="integer" name="config_volte_replacement_rat"/>