275225fb4e
When the VLAN capture is installed on a front panel device and not a soft device, the packets are counted twice: once in fast path, and once after they are trapped to the kernel. Resolve the problem by passing skip_hw flag to vlan_capture_install(). Signed-off-by: Petr Machata <petrm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
133 lines
2.7 KiB
Bash
133 lines
2.7 KiB
Bash
# SPDX-License-Identifier: GPL-2.0
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mirror_install()
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{
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local from_dev=$1; shift
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local direction=$1; shift
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local to_dev=$1; shift
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local filter=$1; shift
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tc filter add dev $from_dev $direction \
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pref 1000 $filter \
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action mirred egress mirror dev $to_dev
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}
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mirror_uninstall()
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{
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local from_dev=$1; shift
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local direction=$1; shift
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tc filter del dev $swp1 $direction pref 1000
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}
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mirror_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 dev=$1; shift
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local pref=$1; shift
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local expect=$1; shift
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local t0=$(tc_rule_stats_get $dev $pref)
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ip vrf exec $vrf_name \
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${PING} ${sip:+-I $sip} $dip -c 10 -i 0.1 -w 2 &> /dev/null
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local t1=$(tc_rule_stats_get $dev $pref)
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local delta=$((t1 - t0))
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# Tolerate a couple stray extra packets.
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((expect <= delta && delta <= expect + 2))
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check_err $? "Expected to capture $expect packets, got $delta."
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}
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do_test_span_dir_ips()
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{
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local expect=$1; shift
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local dev=$1; shift
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local direction=$1; shift
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local ip1=$1; shift
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local ip2=$1; shift
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icmp_capture_install $dev
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mirror_test v$h1 $ip1 $ip2 $dev 100 $expect
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mirror_test v$h2 $ip2 $ip1 $dev 100 $expect
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icmp_capture_uninstall $dev
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}
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quick_test_span_dir_ips()
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{
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do_test_span_dir_ips 10 "$@"
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}
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fail_test_span_dir_ips()
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{
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do_test_span_dir_ips 0 "$@"
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}
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test_span_dir_ips()
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{
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local dev=$1; shift
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local direction=$1; shift
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local forward_type=$1; shift
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local backward_type=$1; shift
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local ip1=$1; shift
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local ip2=$1; shift
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quick_test_span_dir_ips "$dev" "$direction" "$ip1" "$ip2"
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icmp_capture_install $dev "type $forward_type"
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mirror_test v$h1 $ip1 $ip2 $dev 100 10
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icmp_capture_uninstall $dev
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icmp_capture_install $dev "type $backward_type"
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mirror_test v$h2 $ip2 $ip1 $dev 100 10
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icmp_capture_uninstall $dev
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}
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fail_test_span_dir()
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{
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fail_test_span_dir_ips "$@" 192.0.2.1 192.0.2.2
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}
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test_span_dir()
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{
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test_span_dir_ips "$@" 192.0.2.1 192.0.2.2
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}
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do_test_span_vlan_dir_ips()
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{
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local expect=$1; shift
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local dev=$1; shift
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local vid=$1; shift
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local direction=$1; shift
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local ip1=$1; shift
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local ip2=$1; shift
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# Install the capture as skip_hw to avoid double-counting of packets.
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# The traffic is meant for local box anyway, so will be trapped to
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# kernel.
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vlan_capture_install $dev "skip_hw vlan_id $vid"
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mirror_test v$h1 $ip1 $ip2 $dev 100 $expect
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mirror_test v$h2 $ip2 $ip1 $dev 100 $expect
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vlan_capture_uninstall $dev
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}
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quick_test_span_vlan_dir_ips()
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{
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do_test_span_vlan_dir_ips 10 "$@"
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}
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fail_test_span_vlan_dir_ips()
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{
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do_test_span_vlan_dir_ips 0 "$@"
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}
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quick_test_span_vlan_dir()
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{
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quick_test_span_vlan_dir_ips "$@" 192.0.2.1 192.0.2.2
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}
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fail_test_span_vlan_dir()
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{
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fail_test_span_vlan_dir_ips "$@" 192.0.2.1 192.0.2.2
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}
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