fff-network: add packet_steering option to enable RPS

Receive packet steering (RPS) is a linux feature to improve forwarding
performance by distributing the forwarding of packets across multiple
cpus. This is necessary for network devices which have less queues than
cpu cores.

OpenWrt allows to enable RPS easily by setting the global option
'packet_steering' in the network configuration. With earlier OpenWrt
versions this option was enabled by default. However, the default value
was changed with OpenWrt 21.02.

Enable this option agian to improve forwarding performance on routers
with multiple cpu cores.

Signed-off-by: Fabian Bläse <fabian@blaese.de>
Reviewed-by: Johannes Kimmel <fff@bareminimum.eu>

src/packages/fff/fff-network/Makefile

@@ -1,7 +1,7 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=fff-network
-PKG_RELEASE:=47
+PKG_RELEASE:=48
 
 include $(INCLUDE_DIR)/package.mk
 

src/packages/fff/fff-network/files/etc/config/network

@@ -1,3 +1,6 @@
+config globals 'globals'
+        option packet_steering '1'
+
 config interface 'loopback'
         option ifname 'lo'
         option proto 'static'

src/packages/fff/fff-network/files/usr/sbin/configurenetwork

@@ -242,8 +242,6 @@ else
     addr=$(owipcalc "$prefix" add "::$(ipMacSuffix "$ROUTERMAC")")
     ip -6 addr add $addr dev br-client
 
-    uci -q del network.globals
-    uci -q set network.globals=globals
     uci -q set network.globals.ula_prefix=$prefix
     uci -q add_list network.client.ip6addr=$addr
     uci -q set network.client.proto=static