ddd3fd750f
This tests the newly-added ETS Qdisc. It runs two to three streams of traffic, each with a different priority. ETS Qdisc is supposed to allocate bandwidth according to the DRR algorithm and given weights. After running the traffic for a while, counters are compared for each stream to check that the expected ratio is in fact observed. In order for the DRR process to kick in, a traffic bottleneck must exist in the first place. In slow path, such bottleneck can be implemented by wrapping the ETS Qdisc inside a TBF or other shaper. This might however make the configuration unoffloadable. Instead, on HW datapath, the bottleneck would be set up by lowering port speed and configuring shared buffer suitably. Therefore the test is structured as a core component that implements the testing, with two wrapper scripts that implement the details of slow path resp. fast path configuration. Signed-off-by: Petr Machata <petrm@mellanox.com> Reviewed-by: Ido Schimmel <idosch@mellanox.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
45 lines
704 B
Bash
Executable File
45 lines
704 B
Bash
Executable File
#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0
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# A driver for the ETS selftest that implements testing in slowpath.
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lib_dir=.
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source sch_ets_core.sh
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ALL_TESTS="
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ping_ipv4
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priomap_mode
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ets_test_strict
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ets_test_mixed
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ets_test_dwrr
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classifier_mode
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ets_test_strict
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ets_test_mixed
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ets_test_dwrr
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"
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switch_create()
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{
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ets_switch_create
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# Create a bottleneck so that the DWRR process can kick in.
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tc qdisc add dev $swp2 root handle 1: tbf \
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rate 1Gbit burst 1Mbit latency 100ms
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PARENT="parent 1:"
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}
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switch_destroy()
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{
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ets_switch_destroy
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tc qdisc del dev $swp2 root
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}
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# Callback from sch_ets_tests.sh
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get_stats()
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{
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local stream=$1; shift
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link_stats_get $h2.1$stream rx bytes
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}
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ets_run
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