commit a24469c9d0bc0feb21491f5a9a45020104a008b0
author Maciej Żenczykowski <maze@google.com> Fri Jun 25 11:42:01 2021 -0700
committer Maciej Zenczykowski <maze@google.com> Wed Jul 07 16:23:12 2021 +0000
tree a8fc4976a6a3a7be73311b2246942fedd1517c25
parent ed651c86bfbe2e51e5c8365e3b6d6293a3c72bf0

tune usb irq (dwc3) based on usb function

This among other things greatly increases tethering performance.

Bug: 185092876
Test: TreeHugger, built and booted on an oriole, enabled tethering
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: Ic9f0b4bef05250bb38c91dc1e046366098d98dc0

usb/UsbGadget.cpp

diff --git a/usb/UsbGadget.cpp b/usb/UsbGadget.cpp
index b153e20..909fb48 100644
--- a/usb/UsbGadget.cpp
+++ b/usb/UsbGadget.cpp
@@ -367,6 +367,12 @@
         goto error;
     }
 
+    if (functions & GadgetFunction::NCM) {
+        SetProperty("vendor.usb.dwc3_irq", "big");
+    } else {
+        SetProperty("vendor.usb.dwc3_irq", "medium");
+    }
+
     ALOGI("Usb Gadget setcurrent functions called successfully");
     return Void();