5113575fb9
sqm-scripts is a new QoS system from Cerowrt / Bufferbloat.
I have tested it in my own community build.
More info at:
http://www.bufferbloat.net/projects/cerowrt/wiki/Smart_Queue_Management
http://www.bufferbloat.net/projects/cerowrt/wiki/Setting_up_SQM_for_CeroWrt_310
Dave Täht submitted this first via openwrt-devel mailing list in March 2014,
but that was not picked up before the switch to Github:
http://patchwork.openwrt.org/patch/5078/
Original code used as the base:
8ce2936110
I have modified:
- set the default interface to be eth1, like the Openwrt default.
- modified config to hide some of the advanced options by default
- beautified Makefile a bit
- added Toke Høiland-Jørgensen <toke@toke.dk> as the maintainer, as discussed
in https://github.com/dtaht/ceropackages-3.10/issues/8#issuecomment-59215905
Signed-off-by: Hannu Nyman <hannu.nyman@iki.fi>
81 lines
2.7 KiB
Bash
Executable file
81 lines
2.7 KiB
Bash
Executable file
#!/bin/sh
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# Cero3 Simple Shaper
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# A 1 bin tc_codel and ipv6 enabled shaping script for
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# ethernet gateways. This is nearly the simplest possible
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# Copyright (C) 2013 Michael D Taht
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# GPLv2
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. /usr/lib/sqm/functions.sh
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sqm_logger "Starting simplest.qos"
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egress() {
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LQ="quantum `get_mtu $IFACE ${UPLINK}`"
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$TC qdisc del dev $IFACE root 2>/dev/null
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$TC qdisc add dev $IFACE root handle 1: `get_stab_string` htb default 10
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$TC class add dev $IFACE parent 1: classid 1:1 htb $LQ rate ${UPLINK}kbit ceil ${UPLINK}kbit `get_htb_adsll_string`
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$TC class add dev $IFACE parent 1:1 classid 1:10 htb $LQ rate ${UPLINK}kbit ceil ${UPLINK}kbit prio 0 `get_htb_adsll_string`
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$TC qdisc add dev $IFACE parent 1:10 handle 110: $QDISC `get_limit ${ELIMIT}` `get_target "${ETARGET}" ${UPLINK}` `get_ecn ${EECN}` `get_flows ${UPLINK}` ${EQDISC_OPTS}
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}
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ingress() {
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sqm_logger "ingress"
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$TC qdisc del dev $IFACE handle ffff: ingress 2>/dev/null
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$TC qdisc add dev $IFACE handle ffff: ingress
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LQ="quantum `get_mtu $IFACE ${DOWNLINK}`"
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$TC qdisc del dev $DEV root 2>/dev/null
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$TC qdisc add dev $DEV root handle 1: `get_stab_string` htb default 10
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$TC class add dev $DEV parent 1: classid 1:1 htb $LQ rate ${DOWNLINK}kbit ceil ${DOWNLINK}kbit `get_htb_adsll_string`
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$TC class add dev $DEV parent 1:1 classid 1:10 htb $LQ rate ${DOWNLINK}kbit ceil ${DOWNLINK}kbit prio 0 `get_htb_adsll_string`
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# FIXME: I'd prefer to use a pre-nat filter but we need to detect if nat is on this interface
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# AND we need to permute by a random number which we can't do from userspace filters
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# Most high rate flows are REALLY close. This stomps on those harder, but hurts on high rate long distance
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#$TC qdisc add dev $DEV parent 1:10 handle 110: $QDISC limit $LIMIT $ECN interval 20ms target 3ms `get_flows ${DOWNLINK}`
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$TC qdisc add dev $DEV parent 1:10 handle 110: $QDISC `get_limit ${ILIMIT}` `get_target "${ITARGET}" ${DOWNLINK}` `get_ecn ${IECN}` `get_flows ${DOWNLINK}` ${IQDISC_OPTS}
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ifconfig $DEV up
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# redirect all IP packets arriving in $IFACE to ifb0
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$TC filter add dev $IFACE parent ffff: protocol all prio 10 u32 \
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match u32 0 0 flowid 1:1 action mirred egress redirect dev $DEV
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}
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do_modules
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if [ "$UPLINK" -ne 0 ];
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then
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egress
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sqm_logger "egress shaping activated"
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else
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sqm_logger "egress shaping deactivated"
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tc qdisc del dev $IFACE root 2> /dev/null
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fi
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if [ "$DOWNLINK" -ne 0 ];
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then
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ingress
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sqm_logger "ingress shaping activated"
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else
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sqm_logger "ingress shaping deactivated"
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tc qdisc del dev $DEV root 2> /dev/null
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tc qdisc del dev $IFACE ingress 2> /dev/null
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fi
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# References:
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# This alternate shaper attempts to go for 1/u performance in a clever way
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# http://git.coverfire.com/?p=linux-qos-scripts.git;a=blob;f=src-3tos.sh;hb=HEAD
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# Comments
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# This does the right thing with ipv6 traffic.
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# Flaws
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# Many!
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