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Shalom Toledodavem330
Shalom Toledo
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davem330
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selftests: mlxsw: Add shared buffer traffic test
Test the max shared buffer occupancy for port's pool and port's TC's (using different types of packets). Signed-off-by: Shalom Toledo <[email protected]> Signed-off-by: Ido Schimmel <[email protected]> Signed-off-by: Jiri Pirko <[email protected]> Signed-off-by: David S. Miller <[email protected]>
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‎tools/testing/selftests/drivers/net/mlxsw/sharedbuffer.sh

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#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0
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ALL_TESTS="
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port_pool_test
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port_tc_ip_test
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port_tc_arp_test
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"
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NUM_NETIFS=2
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source ../../../net/forwarding/lib.sh
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source ../../../net/forwarding/devlink_lib.sh
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source mlxsw_lib.sh
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SB_POOL_ING=0
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SB_POOL_EGR_CPU=10
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SB_ITC_CPU_IP=3
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SB_ITC_CPU_ARP=2
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SB_ITC=0
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h1_create()
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{
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simple_if_init $h1 192.0.1.1/24
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}
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h1_destroy()
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{
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simple_if_fini $h1 192.0.1.1/24
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}
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h2_create()
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{
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simple_if_init $h2 192.0.1.2/24
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}
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h2_destroy()
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{
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simple_if_fini $h2 192.0.1.2/24
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}
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sb_occ_pool_check()
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{
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local dl_port=$1; shift
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local pool=$1; shift
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local exp_max_occ=$1
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local max_occ
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local err=0
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max_occ=$(devlink sb -j occupancy show $dl_port \
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| jq -e ".[][][\"pool\"][\"$pool\"][\"max\"]")
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if [[ "$max_occ" -ne "$exp_max_occ" ]]; then
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err=1
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fi
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echo $max_occ
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return $err
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}
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sb_occ_itc_check()
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{
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local dl_port=$1; shift
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local itc=$1; shift
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local exp_max_occ=$1
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local max_occ
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local err=0
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max_occ=$(devlink sb -j occupancy show $dl_port \
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| jq -e ".[][][\"itc\"][\"$itc\"][\"max\"]")
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if [[ "$max_occ" -ne "$exp_max_occ" ]]; then
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err=1
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fi
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echo $max_occ
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return $err
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}
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sb_occ_etc_check()
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{
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local dl_port=$1; shift
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local etc=$1; shift
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local exp_max_occ=$1; shift
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local max_occ
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local err=0
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max_occ=$(devlink sb -j occupancy show $dl_port \
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| jq -e ".[][][\"etc\"][\"$etc\"][\"max\"]")
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if [[ "$max_occ" -ne "$exp_max_occ" ]]; then
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err=1
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fi
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echo $max_occ
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return $err
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}
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port_pool_test()
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{
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local exp_max_occ=288
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local max_occ
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devlink sb occupancy clearmax $DEVLINK_DEV
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$MZ $h1 -c 1 -p 160 -a $h1mac -b $h2mac -A 192.0.1.1 -B 192.0.1.2 \
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-t ip -q
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devlink sb occupancy snapshot $DEVLINK_DEV
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RET=0
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max_occ=$(sb_occ_pool_check $dl_port1 $SB_POOL_ING $exp_max_occ)
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check_err $? "Expected iPool($SB_POOL_ING) max occupancy to be $exp_max_occ, but got $max_occ"
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log_test "physical port's($h1) ingress pool"
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RET=0
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max_occ=$(sb_occ_pool_check $dl_port2 $SB_POOL_ING $exp_max_occ)
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check_err $? "Expected iPool($SB_POOL_ING) max occupancy to be $exp_max_occ, but got $max_occ"
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log_test "physical port's($h2) ingress pool"
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RET=0
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max_occ=$(sb_occ_pool_check $cpu_dl_port $SB_POOL_EGR_CPU $exp_max_occ)
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check_err $? "Expected ePool($SB_POOL_EGR_CPU) max occupancy to be $exp_max_occ, but got $max_occ"
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log_test "CPU port's egress pool"
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}
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port_tc_ip_test()
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{
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local exp_max_occ=288
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local max_occ
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devlink sb occupancy clearmax $DEVLINK_DEV
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$MZ $h1 -c 1 -p 160 -a $h1mac -b $h2mac -A 192.0.1.1 -B 192.0.1.2 \
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-t ip -q
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devlink sb occupancy snapshot $DEVLINK_DEV
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RET=0
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max_occ=$(sb_occ_itc_check $dl_port2 $SB_ITC $exp_max_occ)
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check_err $? "Expected ingress TC($SB_ITC) max occupancy to be $exp_max_occ, but got $max_occ"
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log_test "physical port's($h1) ingress TC - IP packet"
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RET=0
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max_occ=$(sb_occ_itc_check $dl_port2 $SB_ITC $exp_max_occ)
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check_err $? "Expected ingress TC($SB_ITC) max occupancy to be $exp_max_occ, but got $max_occ"
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log_test "physical port's($h2) ingress TC - IP packet"
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RET=0
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max_occ=$(sb_occ_etc_check $cpu_dl_port $SB_ITC_CPU_IP $exp_max_occ)
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check_err $? "Expected egress TC($SB_ITC_CPU_IP) max occupancy to be $exp_max_occ, but got $max_occ"
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log_test "CPU port's egress TC - IP packet"
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}
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port_tc_arp_test()
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{
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local exp_max_occ=96
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local max_occ
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if [[ $MLXSW_CHIP != "mlxsw_spectrum" ]]; then
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exp_max_occ=144
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fi
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devlink sb occupancy clearmax $DEVLINK_DEV
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$MZ $h1 -c 1 -p 160 -a $h1mac -A 192.0.1.1 -t arp -q
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devlink sb occupancy snapshot $DEVLINK_DEV
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RET=0
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max_occ=$(sb_occ_itc_check $dl_port2 $SB_ITC $exp_max_occ)
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check_err $? "Expected ingress TC($SB_ITC) max occupancy to be $exp_max_occ, but got $max_occ"
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log_test "physical port's($h1) ingress TC - ARP packet"
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RET=0
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max_occ=$(sb_occ_itc_check $dl_port2 $SB_ITC $exp_max_occ)
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check_err $? "Expected ingress TC($SB_ITC) max occupancy to be $exp_max_occ, but got $max_occ"
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log_test "physical port's($h2) ingress TC - ARP packet"
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RET=0
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max_occ=$(sb_occ_etc_check $cpu_dl_port $SB_ITC_CPU_ARP $exp_max_occ)
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check_err $? "Expected egress TC($SB_ITC_IP2ME) max occupancy to be $exp_max_occ, but got $max_occ"
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log_test "CPU port's egress TC - ARP packet"
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}
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setup_prepare()
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{
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h1=${NETIFS[p1]}
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h2=${NETIFS[p2]}
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h1mac=$(mac_get $h1)
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h2mac=$(mac_get $h2)
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dl_port1=$(devlink_port_by_netdev $h1)
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dl_port2=$(devlink_port_by_netdev $h2)
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cpu_dl_port=$(devlink_cpu_port_get)
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vrf_prepare
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h1_create
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h2_create
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}
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cleanup()
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{
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pre_cleanup
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h2_destroy
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h1_destroy
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vrf_cleanup
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}
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trap cleanup EXIT
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setup_prepare
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setup_wait
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tests_run
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exit $EXIT_STATUS

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