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| author | Felix Fietkau <nbd@nbd.name> | 2018-02-26 12:30:28 +0100 |
|---|---|---|
| committer | Felix Fietkau <nbd@nbd.name> | 2018-02-28 12:46:02 +0100 |
| commit | 916e33fa1e14b97daf8c9bf07a1b36f9767db679 (patch) | |
| tree | 462528e7fc08eb16a2fd942151b27fc89f35fe35 /package/network/config | |
| parent | 810659a22c11ea0d2d94f3e09ddf7eb2d2bb1f1e (diff) | |
| download | upstream-916e33fa1e14b97daf8c9bf07a1b36f9767db679.tar.gz upstream-916e33fa1e14b97daf8c9bf07a1b36f9767db679.tar.bz2 upstream-916e33fa1e14b97daf8c9bf07a1b36f9767db679.zip | |
netifd: update to the latest version, rewrite RPS/XPS handling
Remove RPS/XPS support from netifd core, move the logic to a hotplug
script that uses a different policy which provides better performance
and more fairness across flows
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Diffstat (limited to 'package/network/config')
| -rw-r--r-- | package/network/config/netifd/Makefile | 6 | ||||
| -rw-r--r-- | package/network/config/netifd/files/etc/hotplug.d/net/20-smp-tune | 67 |
2 files changed, 70 insertions, 3 deletions
diff --git a/package/network/config/netifd/Makefile b/package/network/config/netifd/Makefile index d62b60ad98..6e208ddd96 100644 --- a/package/network/config/netifd/Makefile +++ b/package/network/config/netifd/Makefile @@ -5,9 +5,9 @@ PKG_RELEASE:=4 PKG_SOURCE_PROTO:=git PKG_SOURCE_URL=$(PROJECT_GIT)/project/netifd.git -PKG_SOURCE_DATE:=2018-02-05 -PKG_SOURCE_VERSION:=1be329c66326c86d7a48ba71004fcef7691bbbf9 -PKG_MIRROR_HASH:=06c1c24ed56b4fe39b92b33719f8bd4f9a8fe3c6a25ce02a6a245e859f1237bf +PKG_SOURCE_DATE:=2018-02-26 +PKG_SOURCE_VERSION:=8cdb17d2c58d5c3ecb57bdaf1981cd72b4948db1 +PKG_MIRROR_HASH:=5c0859b779c9665edd7c105b92b7022fa7544e3a704e0e05bb3ab11ba0c30384 PKG_MAINTAINER:=Felix Fietkau <nbd@nbd.name> PKG_LICENSE:=GPL-2.0 diff --git a/package/network/config/netifd/files/etc/hotplug.d/net/20-smp-tune b/package/network/config/netifd/files/etc/hotplug.d/net/20-smp-tune new file mode 100644 index 0000000000..ab9a90418e --- /dev/null +++ b/package/network/config/netifd/files/etc/hotplug.d/net/20-smp-tune @@ -0,0 +1,67 @@ +#!/bin/sh +[ "$ACTION" = add ] || exit + +NPROCS="$(grep -c "^processor.*:" /proc/cpuinfo)" +[ "$NPROCS" -gt 1 ] || exit + +PROC_MASK="$(( (1 << $NPROCS) - 1 ))" + +find_irq_cpu() { + local dev="$1" + local match="$(grep -m 1 "$dev\$" /proc/interrupts)" + local cpu=0 + + [ -n "$match" ] && { + set -- $match + shift + for cur in `seq 1 $NPROCS`; do + [ "$1" -gt 0 ] && { + cpu=$(($cur - 1)) + break + } + shift + done + } + + echo "$cpu" +} + +set_hex_val() { + local file="$1" + local val="$2" + val="$(printf %x "$val")" + [ -n "$DEBUG" ] && echo "$file = $val" + echo "$val" > "$file" +} + +default_ps="$(uci get "network.@globals[0].default_ps")" +[ -n "$default_ps" -a "$default_ps" != 1 ] && exit 0 + +exec 512>/var/lock/smp_tune.lock +flock 512 || exit 1 + +for dev in /sys/class/net/*; do + [ -d "$dev" ] || continue + + # ignore virtual interfaces + [ -n "$(ls "${dev}/" | grep '^lower_')" ] && continue + [ -d "${dev}/device" ] || continue + + device="$(readlink "${dev}/device")" + device="$(basename "$device")" + irq_cpu="$(find_irq_cpu "$device")" + irq_cpu_mask="$((1 << $irq_cpu))" + + for q in ${dev}/queues/rx-*; do + set_hex_val "$q/rps_cpus" "$(($PROC_MASK & ~$irq_cpu_mask))" + done + + ntxq="$(ls -d ${dev}/queues/tx-* | wc -l)" + + idx=$(($irq_cpu + 1)) + for q in ${dev}/queues/tx-*; do + set_hex_val "$q/xps_cpus" "$((1 << $idx))" + let "idx = idx + 1" + [ "$idx" -ge "$NPROCS" ] && idx=0 + done +done |