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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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d7442b7d28
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 operation of pedit on IPv4 and IPv6 dsfield and its parts. The bridge thus does not need to participate in routing traffic and 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. Since the bridge is only used for L2 forwarding, this change should not hinder usefulness of this selftest for testing SW datapath or HW datapaths in other devices. Signed-off-by: Petr Machata <petrm@nvidia.com> Reviewed-by: Danielle Ratson <danieller@nvidia.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
314 lines
6.7 KiB
Bash
Executable File
314 lines
6.7 KiB
Bash
Executable File
#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0
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# This test sends traffic from H1 to H2. Either on ingress of $swp1, or on
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# egress of $swp2, the traffic is acted upon by a pedit action. An ingress
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# filter installed on $h2 verifies that the packet looks like expected.
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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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# | +--------------------------------------------------------------------+ |
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# +---------------------------------------------------------------------------+
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ALL_TESTS="
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ping_ipv4
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ping_ipv6
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test_ip_dsfield
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test_ip_dscp
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test_ip_ecn
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test_ip_dscp_ecn
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test_ip6_dsfield
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test_ip6_dscp
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test_ip6_ecn
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"
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NUM_NETIFS=4
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source lib.sh
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source tc_common.sh
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: ${HIT_TIMEOUT:=2000} # ms
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h1_create()
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{
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simple_if_init $h1 192.0.2.1/28 2001:db8:1::1/64
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}
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h1_destroy()
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{
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simple_if_fini $h1 192.0.2.1/28 2001:db8:1::1/64
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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 2001:db8:1::2/64
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tc qdisc add dev $h2 clsact
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}
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h2_destroy()
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{
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tc qdisc del dev $h2 clsact
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simple_if_fini $h2 192.0.2.2/28 2001:db8:1::2/64
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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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tc qdisc add dev $swp1 clsact
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tc qdisc add dev $swp2 clsact
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}
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switch_destroy()
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{
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tc qdisc del dev $swp2 clsact
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tc qdisc del dev $swp1 clsact
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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=${NETIFS[p4]}
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h2mac=$(mac_get $h2)
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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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ping_ipv6()
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{
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ping6_test $h1 2001:db8:1::2
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}
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do_test_pedit_dsfield_common()
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{
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local pedit_locus=$1; shift
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local pedit_action=$1; shift
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local mz_flags=$1; shift
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RET=0
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# TOS 125: DSCP 31, ECN 1. Used for testing that the relevant part is
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# overwritten when zero is selected.
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$MZ $mz_flags $h1 -c 10 -d 20msec -p 100 \
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-a own -b $h2mac -q -t tcp tos=0x7d,sp=54321,dp=12345
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local pkts
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pkts=$(busywait "$TC_HIT_TIMEOUT" until_counter_is ">= 10" \
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tc_rule_handle_stats_get "dev $h2 ingress" 101)
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check_err $? "Expected to get 10 packets on test probe, but got $pkts."
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pkts=$(tc_rule_handle_stats_get "$pedit_locus" 101)
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((pkts >= 10))
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check_err $? "Expected to get 10 packets on pedit rule, but got $pkts."
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log_test "$pedit_locus pedit $pedit_action"
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}
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do_test_pedit_dsfield()
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{
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local pedit_locus=$1; shift
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local pedit_action=$1; shift
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local match_prot=$1; shift
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local match_flower=$1; shift
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local mz_flags=$1; shift
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local saddr=$1; shift
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local daddr=$1; shift
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tc filter add $pedit_locus handle 101 pref 1 \
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flower action pedit ex munge $pedit_action
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tc filter add dev $h2 ingress handle 101 pref 1 prot $match_prot \
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flower skip_hw $match_flower action pass
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do_test_pedit_dsfield_common "$pedit_locus" "$pedit_action" "$mz_flags"
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tc filter del dev $h2 ingress pref 1
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tc filter del $pedit_locus pref 1
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}
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do_test_ip_dsfield()
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{
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local locus=$1; shift
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local dsfield
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for dsfield in 0 1 2 3 128 252 253 254 255; do
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do_test_pedit_dsfield "$locus" \
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"ip dsfield set $dsfield" \
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ip "ip_tos $dsfield" \
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"-A 192.0.2.1 -B 192.0.2.2"
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done
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}
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test_ip_dsfield()
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{
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do_test_ip_dsfield "dev $swp1 ingress"
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do_test_ip_dsfield "dev $swp2 egress"
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}
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do_test_ip_dscp()
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{
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local locus=$1; shift
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local dscp
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for dscp in 0 1 2 3 32 61 62 63; do
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do_test_pedit_dsfield "$locus" \
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"ip dsfield set $((dscp << 2)) retain 0xfc" \
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ip "ip_tos $(((dscp << 2) | 1))" \
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"-A 192.0.2.1 -B 192.0.2.2"
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done
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}
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test_ip_dscp()
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{
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do_test_ip_dscp "dev $swp1 ingress"
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do_test_ip_dscp "dev $swp2 egress"
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}
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do_test_ip_ecn()
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{
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local locus=$1; shift
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local ecn
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for ecn in 0 1 2 3; do
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do_test_pedit_dsfield "$locus" \
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"ip dsfield set $ecn retain 0x03" \
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ip "ip_tos $((124 | $ecn))" \
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"-A 192.0.2.1 -B 192.0.2.2"
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done
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}
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test_ip_ecn()
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{
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do_test_ip_ecn "dev $swp1 ingress"
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do_test_ip_ecn "dev $swp2 egress"
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}
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do_test_ip_dscp_ecn()
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{
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local locus=$1; shift
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tc filter add $locus handle 101 pref 1 \
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flower action pedit ex munge ip dsfield set 124 retain 0xfc \
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action pedit ex munge ip dsfield set 1 retain 0x03
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tc filter add dev $h2 ingress handle 101 pref 1 prot ip \
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flower skip_hw ip_tos 125 action pass
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do_test_pedit_dsfield_common "$locus" "set DSCP + set ECN" \
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"-A 192.0.2.1 -B 192.0.2.2"
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tc filter del dev $h2 ingress pref 1
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tc filter del $locus pref 1
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}
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test_ip_dscp_ecn()
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{
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do_test_ip_dscp_ecn "dev $swp1 ingress"
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do_test_ip_dscp_ecn "dev $swp2 egress"
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}
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do_test_ip6_dsfield()
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{
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local locus=$1; shift
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local dsfield
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for dsfield in 0 1 2 3 128 252 253 254 255; do
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do_test_pedit_dsfield "$locus" \
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"ip6 traffic_class set $dsfield" \
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ipv6 "ip_tos $dsfield" \
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"-6 -A 2001:db8:1::1 -B 2001:db8:1::2"
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done
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}
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test_ip6_dsfield()
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{
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do_test_ip6_dsfield "dev $swp1 ingress"
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do_test_ip6_dsfield "dev $swp2 egress"
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}
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do_test_ip6_dscp()
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{
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local locus=$1; shift
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local dscp
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for dscp in 0 1 2 3 32 61 62 63; do
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do_test_pedit_dsfield "$locus" \
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"ip6 traffic_class set $((dscp << 2)) retain 0xfc" \
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ipv6 "ip_tos $(((dscp << 2) | 1))" \
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"-6 -A 2001:db8:1::1 -B 2001:db8:1::2"
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done
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}
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test_ip6_dscp()
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{
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do_test_ip6_dscp "dev $swp1 ingress"
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do_test_ip6_dscp "dev $swp2 egress"
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}
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do_test_ip6_ecn()
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{
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local locus=$1; shift
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local ecn
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for ecn in 0 1 2 3; do
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do_test_pedit_dsfield "$locus" \
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"ip6 traffic_class set $ecn retain 0x3" \
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ipv6 "ip_tos $((124 | $ecn))" \
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"-6 -A 2001:db8:1::1 -B 2001:db8:1::2"
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done
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}
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test_ip6_ecn()
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{
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do_test_ip6_ecn "dev $swp1 ingress"
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do_test_ip6_ecn "dev $swp2 egress"
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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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