71 lines
1.4 KiB
Bash
Executable File
71 lines
1.4 KiB
Bash
Executable File
#!/bin/sh
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NPROCS="$(grep -c "^processor.*:" /proc/cpuinfo)"
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[ "$NPROCS" -gt 1 ] || exit
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PROC_MASK="$(( (1 << $NPROCS) - 1 ))"
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find_irq_cpu() {
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local dev="$1"
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local match="$(grep -m 1 "$dev\$" /proc/interrupts)"
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local cpu=0
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[ -n "$match" ] && {
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set -- $match
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shift
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for cur in $(seq 1 $NPROCS); do
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[ "$1" -gt 0 ] && {
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cpu=$(($cur - 1))
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break
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}
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shift
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done
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}
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echo "$cpu"
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}
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set_hex_val() {
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local file="$1"
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local val="$2"
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val="$(printf %x "$val")"
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[ -n "$DEBUG" ] && echo "$file = $val"
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echo "$val" > "$file" 2>/dev/null
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}
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packet_steering="$(uci get "network.@globals[0].packet_steering")"
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[ "$packet_steering" != 1 ] && exit 0
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exec 512>/var/lock/smp_tune.lock
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flock 512 || exit 1
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[ -e "/usr/libexec/platform/packet-steering.sh" ] && {
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/usr/libexec/platform/packet-steering.sh
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exit 0
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}
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for dev in /sys/class/net/*; do
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[ -d "$dev" ] || continue
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# ignore virtual interfaces
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[ -n "$(ls "${dev}/" | grep '^lower_')" ] && continue
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[ -d "${dev}/device" ] || continue
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device="$(readlink "${dev}/device")"
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device="$(basename "$device")"
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irq_cpu="$(find_irq_cpu "$device")"
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irq_cpu_mask="$((1 << $irq_cpu))"
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for q in ${dev}/queues/tx-*; do
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set_hex_val "$q/xps_cpus" "$PROC_MASK"
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done
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# ignore dsa slave ports for RPS
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subsys="$(readlink "${dev}/device/subsystem")"
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subsys="$(basename "$subsys")"
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[ "$subsys" = "mdio_bus" ] && continue
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for q in ${dev}/queues/rx-*; do
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set_hex_val "$q/rps_cpus" "$PROC_MASK"
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done
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done
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