bcm4908: refactor packet steering init

Replace a standalone init.d script with a platform implementation as
supported by netifd. This avoids a race between netifd and target
specific setups.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>

target/linux/bcm4908/base-files/etc/init.d/fastnetwork

@@ -1,46 +0,0 @@
-#!/bin/sh /etc/rc.common
-
-START=25
-USE_PROCD=1
-
-start_service() {
-	reload_service
-}
-
-service_triggers() {
-	procd_add_reload_trigger "network"
-	procd_add_reload_trigger "firewall"
-	procd_add_reload_interface_trigger "lan"
-}
-
-reload_service() {
-	local packet_steering="$(uci -q get network.@globals[0].packet_steering)"
-	local num_cpus="$(grep -c "^processor.*:" /proc/cpuinfo)"
-	local flow_offloading="$(uci -q get firewall.@defaults[0].flow_offloading)"
-	local flow_offloading_hw="$(uci -q get firewall.@defaults[0].flow_offloading_hw)"
-	local rps_eth0=0
-	local rps_br_lan=0
-
-	[ "$num_cpus" -le 1 ] && return
-
-	[ "$packet_steering" = 1 ] && {
-		if [ ${flow_offloading_hw:-0} -gt 0 ]; then
-			# HW offloading
-			# Not implemented
-			:
-		elif [ ${flow_offloading:-0} -gt 0 ]; then
-			# SW offloading
-			# BCM4908 always reaches ~940 Mb/s
-			:
-		else
-			# Default
-			case "$num_cpus" in
-				2) rps_eth0=2; rps_br_lan=2;;
-				4) rps_eth0=e; rps_br_lan=e;;
-			esac
-		fi
-	}
-
-	echo $rps_eth0 > /sys/class/net/eth0/queues/rx-0/rps_cpus
-	echo $rps_br_lan > /sys/class/net/br-lan/queues/rx-0/rps_cpus
-}

target/linux/bcm4908/base-files/usr/libexec/platform/packet-steering.sh

@@ -0,0 +1,29 @@
+#!/bin/sh
+
+packet_steering="$(uci -q get network.@globals[0].packet_steering)"
+num_cpus="$(grep -c "^processor.*:" /proc/cpuinfo)"
+flow_offloading="$(uci -q get firewall.@defaults[0].flow_offloading)"
+flow_offloading_hw="$(uci -q get firewall.@defaults[0].flow_offloading_hw)"
+rps_eth0=0
+rps_br_lan=0
+
+[ "$packet_steering" = 1 ] && {
+	if [ ${flow_offloading_hw:-0} -gt 0 ]; then
+		# HW offloading
+		# Not implemented
+		:
+	elif [ ${flow_offloading:-0} -gt 0 ]; then
+		# SW offloading
+		# BCM4908 always reaches ~940 Mb/s
+		:
+	else
+		# Default
+		case "$num_cpus" in
+			2) rps_eth0=2; rps_br_lan=2;;
+			4) rps_eth0=e; rps_br_lan=e;;
+		esac
+	fi
+}
+
+echo $rps_eth0 > /sys/class/net/eth0/queues/rx-0/rps_cpus
+echo $rps_br_lan > /sys/class/net/br-lan/queues/rx-0/rps_cpus