1 files changed, 30 insertions, 0 deletions
diff --git a/target/linux/rockchip/armv8/base-files/etc/hotplug.d/net/40-net-smp-affinity b/target/linux/rockchip/armv8/base-files/etc/hotplug.d/net/40-net-smp-affinity
new file mode 100644
index 0000000000..ab3f954654
--- /dev/null
+++ b/target/linux/rockchip/armv8/base-files/etc/hotplug.d/net/40-net-smp-affinity
@@ -0,0 +1,30 @@
+#!/bin/sh
+
+[ "$ACTION" = add ] || exit
+
+get_device_irq() {
+	local device="$1"
+
+	local line=$(grep -m 1 "${device}\$" /proc/interrupts)
+	echo $(echo ${line} | sed 's/:.*//')
+}
+
+set_interface_core() {
+	local core_mask="$1"
+	local interface="$2"
+	local device="$3"
+
+	[ -z "${device}" ] && device="$interface"
+
+	local irq=$(get_device_irq "$device")
+
+	echo "${core_mask}" > /proc/irq/${irq}/smp_affinity
+}
+
+case "$(board_name)" in
+friendlyarm,nanopi-r2s)
+	set_interface_core 2 "eth0"
+	set_interface_core 4 "eth1" "xhci-hcd:usb3"
+	;;
+esac
+