mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git
synced 2026-04-18 19:43:43 -04:00
6349f9bbbf
In a future patch, mlxsw will start adding RIFs to uppers of front panel port netdevices, if they have an IP address. At the time that the front panel port is enslaved to the bridge, the bridge MAC address does not have the same prefix as other interfaces in the system. On Nvidia Spectrum-1 machines all the RIFs have to have the same 38-bit MAC address prefix. Since the bridge does not obey this limitation, the RIF cannot be created, and the enslavement attempt is vetoed on the grounds of the configuration not being offloadable. The selftest itself however checks DCB DSCP-based prioritization, and the bridge serves for its L2 forwarding capabilities, and does not need to participate in routing traffic. The IP address or the RIF are irrelevant. Fix by disabling automatic IPv6 address generation for the HW-offloaded bridge in this selftest, thus exempting it from mlxsw router attention. Signed-off-by: Petr Machata <petrm@nvidia.com> Reviewed-by: Danielle Ratson <danieller@nvidia.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
183 lines
4.1 KiB
Bash
Executable File
183 lines
4.1 KiB
Bash
Executable File
#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0
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# Test for DSCP prioritization and rewrite. Packets ingress $swp1 with a DSCP
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# tag and are prioritized according to the map at $swp1. They egress $swp2 and
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# the DSCP value is updated to match the map at that interface. The updated DSCP
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# tag is verified at $h2.
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#
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# ICMP responses are produced with the same DSCP tag that arrived at $h2. They
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# go through prioritization at $swp2 and DSCP retagging at $swp1. The tag is
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# verified at $h1--it should match the original tag.
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#
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# +----------------------+ +----------------------+
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# | H1 | | H2 |
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# | + $h1 | | $h2 + |
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# | | 192.0.2.1/28 | | 192.0.2.2/28 | |
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# +----|-----------------+ +----------------|-----+
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# | |
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# +----|----------------------------------------------------------------|-----+
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# | SW | | |
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# | +-|----------------------------------------------------------------|-+ |
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# | | + $swp1 BR $swp2 + | |
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# | | dcb dscp-prio 10:0...17:7 dcb dscp-prio 20:0...27:7 | |
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# | +--------------------------------------------------------------------+ |
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# +---------------------------------------------------------------------------+
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ALL_TESTS="
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ping_ipv4
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test_dscp
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"
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lib_dir=$(dirname $0)/../../../net/forwarding
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NUM_NETIFS=4
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source $lib_dir/lib.sh
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h1_create()
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{
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simple_if_init $h1 192.0.2.1/28
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tc qdisc add dev $h1 clsact
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dscp_capture_install $h1 10
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}
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h1_destroy()
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{
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dscp_capture_uninstall $h1 10
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tc qdisc del dev $h1 clsact
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simple_if_fini $h1 192.0.2.1/28
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}
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h2_create()
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{
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simple_if_init $h2 192.0.2.2/28
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tc qdisc add dev $h2 clsact
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dscp_capture_install $h2 20
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}
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h2_destroy()
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{
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dscp_capture_uninstall $h2 20
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tc qdisc del dev $h2 clsact
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simple_if_fini $h2 192.0.2.2/28
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}
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switch_create()
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{
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ip link add name br1 type bridge vlan_filtering 1
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ip link set dev br1 addrgenmode none
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ip link set dev br1 up
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ip link set dev $swp1 master br1
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ip link set dev $swp1 up
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ip link set dev $swp2 master br1
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ip link set dev $swp2 up
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dcb app add dev $swp1 dscp-prio 10:0 11:1 12:2 13:3 14:4 15:5 16:6 17:7
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dcb app add dev $swp2 dscp-prio 20:0 21:1 22:2 23:3 24:4 25:5 26:6 27:7
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}
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switch_destroy()
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{
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dcb app del dev $swp2 dscp-prio 20:0 21:1 22:2 23:3 24:4 25:5 26:6 27:7
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dcb app del dev $swp1 dscp-prio 10:0 11:1 12:2 13:3 14:4 15:5 16:6 17:7
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ip link set dev $swp2 down
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ip link set dev $swp2 nomaster
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ip link set dev $swp1 down
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ip link set dev $swp1 nomaster
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ip link del dev br1
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}
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setup_prepare()
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{
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h1=${NETIFS[p1]}
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swp1=${NETIFS[p2]}
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swp2=${NETIFS[p3]}
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h2=${NETIFS[p4]}
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vrf_prepare
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h1_create
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h2_create
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switch_create
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}
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cleanup()
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{
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pre_cleanup
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switch_destroy
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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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ping_ipv4()
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{
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ping_test $h1 192.0.2.2
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}
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dscp_ping_test()
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{
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local vrf_name=$1; shift
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local sip=$1; shift
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local dip=$1; shift
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local prio=$1; shift
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local dev_10=$1; shift
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local dev_20=$1; shift
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local key
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local dscp_10=$(((prio + 10) << 2))
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local dscp_20=$(((prio + 20) << 2))
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RET=0
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local -A t0s
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eval "t0s=($(dscp_fetch_stats $dev_10 10)
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$(dscp_fetch_stats $dev_20 20))"
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local ping_timeout=$((PING_TIMEOUT * 5))
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ip vrf exec $vrf_name \
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${PING} -Q $dscp_10 ${sip:+-I $sip} $dip \
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-c 10 -i 0.5 -w $ping_timeout &> /dev/null
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local -A t1s
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eval "t1s=($(dscp_fetch_stats $dev_10 10)
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$(dscp_fetch_stats $dev_20 20))"
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for key in ${!t0s[@]}; do
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local expect
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if ((key == prio+10 || key == prio+20)); then
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expect=10
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else
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expect=0
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fi
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local delta=$((t1s[$key] - t0s[$key]))
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((expect == delta))
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check_err $? "DSCP $key: Expected to capture $expect packets, got $delta."
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done
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log_test "DSCP rewrite: $dscp_10-(prio $prio)-$dscp_20"
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}
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test_dscp()
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{
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local prio
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for prio in {0..7}; do
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dscp_ping_test v$h1 192.0.2.1 192.0.2.2 $prio $h1 $h2
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done
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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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