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379 lines
8.2 KiB
379 lines
8.2 KiB
#!/bin/bash |
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# SPDX-License-Identifier: GPL-2.0 |
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ALL_TESTS=" |
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test_defaults |
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test_dcb_ets |
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test_mtu |
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test_pfc |
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test_int_buf |
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test_tc_priomap |
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test_tc_mtu |
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test_tc_sizes |
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test_tc_int_buf |
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" |
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lib_dir=$(dirname $0)/../../../net/forwarding |
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NUM_NETIFS=0 |
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source $lib_dir/lib.sh |
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source $lib_dir/devlink_lib.sh |
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source qos_lib.sh |
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swp=$NETIF_NO_CABLE |
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cleanup() |
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{ |
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pre_cleanup |
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} |
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get_prio_pg() |
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{ |
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__mlnx_qos -i $swp | sed -n '/^PFC/,/^[^[:space:]]/p' | |
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grep buffer | sed 's/ \+/ /g' | cut -d' ' -f 2- |
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} |
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get_prio_pfc() |
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{ |
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__mlnx_qos -i $swp | sed -n '/^PFC/,/^[^[:space:]]/p' | |
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grep enabled | sed 's/ \+/ /g' | cut -d' ' -f 2- |
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} |
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get_prio_tc() |
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{ |
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__mlnx_qos -i $swp | sed -n '/^tc/,$p' | |
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awk '/^tc/ { TC = $2 } |
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/priority:/ { PRIO[$2]=TC } |
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END { |
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for (i in PRIO) |
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printf("%d ", PRIO[i]) |
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}' |
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} |
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get_buf_size() |
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{ |
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local idx=$1; shift |
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__mlnx_qos -i $swp | grep Receive | sed 's/.*: //' | cut -d, -f $((idx + 1)) |
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} |
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get_tot_size() |
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{ |
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__mlnx_qos -i $swp | grep Receive | sed 's/.*total_size=//' |
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} |
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check_prio_pg() |
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{ |
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local expect=$1; shift |
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local current=$(get_prio_pg) |
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test "$current" = "$expect" |
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check_err $? "prio2buffer is '$current', expected '$expect'" |
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} |
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check_prio_pfc() |
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{ |
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local expect=$1; shift |
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local current=$(get_prio_pfc) |
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test "$current" = "$expect" |
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check_err $? "prio PFC is '$current', expected '$expect'" |
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} |
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check_prio_tc() |
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{ |
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local expect=$1; shift |
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local current=$(get_prio_tc) |
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test "$current" = "$expect" |
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check_err $? "prio_tc is '$current', expected '$expect'" |
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} |
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__check_buf_size() |
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{ |
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local idx=$1; shift |
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local expr=$1; shift |
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local what=$1; shift |
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local current=$(get_buf_size $idx) |
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((current $expr)) |
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check_err $? "${what}buffer $idx size is '$current', expected '$expr'" |
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echo $current |
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} |
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check_buf_size() |
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{ |
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__check_buf_size "$@" > /dev/null |
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} |
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test_defaults() |
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{ |
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RET=0 |
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check_prio_pg "0 0 0 0 0 0 0 0 " |
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check_prio_tc "0 0 0 0 0 0 0 0 " |
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check_prio_pfc "0 0 0 0 0 0 0 0 " |
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log_test "Default headroom configuration" |
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} |
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test_dcb_ets() |
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{ |
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RET=0 |
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__mlnx_qos -i $swp --prio_tc=0,2,4,6,1,3,5,7 > /dev/null |
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check_prio_pg "0 2 4 6 1 3 5 7 " |
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check_prio_tc "0 2 4 6 1 3 5 7 " |
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check_prio_pfc "0 0 0 0 0 0 0 0 " |
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__mlnx_qos -i $swp --prio_tc=0,0,0,0,0,0,0,0 > /dev/null |
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check_prio_pg "0 0 0 0 0 0 0 0 " |
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check_prio_tc "0 0 0 0 0 0 0 0 " |
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__mlnx_qos -i $swp --prio2buffer=1,3,5,7,0,2,4,6 &> /dev/null |
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check_fail $? "prio2buffer accepted in DCB mode" |
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log_test "Configuring headroom through ETS" |
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} |
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test_mtu() |
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{ |
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local what=$1; shift |
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local buf0size_2 |
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local buf0size |
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RET=0 |
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buf0size=$(__check_buf_size 0 "> 0") |
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mtu_set $swp 3000 |
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buf0size_2=$(__check_buf_size 0 "> $buf0size" "MTU 3000: ") |
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mtu_restore $swp |
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mtu_set $swp 6000 |
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check_buf_size 0 "> $buf0size_2" "MTU 6000: " |
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mtu_restore $swp |
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check_buf_size 0 "== $buf0size" |
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log_test "${what}MTU impacts buffer size" |
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} |
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test_tc_mtu() |
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{ |
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# In TC mode, MTU still impacts the threshold below which a buffer is |
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# not permitted to go. |
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tc qdisc replace dev $swp root handle 1: bfifo limit 1.5M |
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test_mtu "TC: " |
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tc qdisc delete dev $swp root |
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} |
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test_pfc() |
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{ |
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RET=0 |
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__mlnx_qos -i $swp --prio_tc=0,0,0,0,0,1,2,3 > /dev/null |
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local buf0size=$(get_buf_size 0) |
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local buf1size=$(get_buf_size 1) |
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local buf2size=$(get_buf_size 2) |
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local buf3size=$(get_buf_size 3) |
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check_buf_size 0 "> 0" |
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check_buf_size 1 "> 0" |
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check_buf_size 2 "> 0" |
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check_buf_size 3 "> 0" |
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check_buf_size 4 "== 0" |
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check_buf_size 5 "== 0" |
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check_buf_size 6 "== 0" |
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check_buf_size 7 "== 0" |
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log_test "Buffer size sans PFC" |
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RET=0 |
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__mlnx_qos -i $swp --pfc=0,0,0,0,0,1,1,1 --cable_len=0 > /dev/null |
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check_prio_pg "0 0 0 0 0 1 2 3 " |
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check_prio_pfc "0 0 0 0 0 1 1 1 " |
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check_buf_size 0 "== $buf0size" |
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check_buf_size 1 "> $buf1size" |
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check_buf_size 2 "> $buf2size" |
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check_buf_size 3 "> $buf3size" |
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local buf1size=$(get_buf_size 1) |
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check_buf_size 2 "== $buf1size" |
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check_buf_size 3 "== $buf1size" |
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log_test "PFC: Cable length 0" |
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RET=0 |
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__mlnx_qos -i $swp --pfc=0,0,0,0,0,1,1,1 --cable_len=1000 > /dev/null |
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check_buf_size 0 "== $buf0size" |
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check_buf_size 1 "> $buf1size" |
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check_buf_size 2 "> $buf1size" |
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check_buf_size 3 "> $buf1size" |
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log_test "PFC: Cable length 1000" |
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RET=0 |
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__mlnx_qos -i $swp --pfc=0,0,0,0,0,0,0,0 --cable_len=0 > /dev/null |
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__mlnx_qos -i $swp --prio_tc=0,0,0,0,0,0,0,0 > /dev/null |
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check_prio_pg "0 0 0 0 0 0 0 0 " |
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check_prio_tc "0 0 0 0 0 0 0 0 " |
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check_buf_size 0 "> 0" |
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check_buf_size 1 "== 0" |
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check_buf_size 2 "== 0" |
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check_buf_size 3 "== 0" |
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check_buf_size 4 "== 0" |
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check_buf_size 5 "== 0" |
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check_buf_size 6 "== 0" |
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check_buf_size 7 "== 0" |
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log_test "PFC: Restore defaults" |
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} |
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test_tc_priomap() |
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{ |
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RET=0 |
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__mlnx_qos -i $swp --prio_tc=0,1,2,3,4,5,6,7 > /dev/null |
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check_prio_pg "0 1 2 3 4 5 6 7 " |
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tc qdisc replace dev $swp root handle 1: bfifo limit 1.5M |
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check_prio_pg "0 0 0 0 0 0 0 0 " |
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__mlnx_qos -i $swp --prio2buffer=1,3,5,7,0,2,4,6 > /dev/null |
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check_prio_pg "1 3 5 7 0 2 4 6 " |
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tc qdisc delete dev $swp root |
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check_prio_pg "0 1 2 3 4 5 6 7 " |
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# Clean up. |
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tc qdisc replace dev $swp root handle 1: bfifo limit 1.5M |
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__mlnx_qos -i $swp --prio2buffer=0,0,0,0,0,0,0,0 > /dev/null |
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tc qdisc delete dev $swp root |
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__mlnx_qos -i $swp --prio_tc=0,0,0,0,0,0,0,0 > /dev/null |
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log_test "TC: priomap" |
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} |
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test_tc_sizes() |
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{ |
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local cell_size=$(devlink_cell_size_get) |
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local size=$((cell_size * 1000)) |
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RET=0 |
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__mlnx_qos -i $swp --buffer_size=$size,0,0,0,0,0,0,0 &> /dev/null |
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check_fail $? "buffer_size should fail before qdisc is added" |
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tc qdisc replace dev $swp root handle 1: bfifo limit 1.5M |
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__mlnx_qos -i $swp --buffer_size=$size,0,0,0,0,0,0,0 > /dev/null |
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check_err $? "buffer_size should pass after qdisc is added" |
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check_buf_size 0 "== $size" "set size: " |
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mtu_set $swp 6000 |
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check_buf_size 0 "== $size" "set MTU: " |
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mtu_restore $swp |
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__mlnx_qos -i $swp --buffer_size=0,0,0,0,0,0,0,0 > /dev/null |
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# After replacing the qdisc for the same kind, buffer_size still has to |
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# work. |
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tc qdisc replace dev $swp root handle 1: bfifo limit 1M |
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__mlnx_qos -i $swp --buffer_size=$size,0,0,0,0,0,0,0 > /dev/null |
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check_buf_size 0 "== $size" "post replace, set size: " |
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__mlnx_qos -i $swp --buffer_size=0,0,0,0,0,0,0,0 > /dev/null |
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# Likewise after replacing for a different kind. |
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tc qdisc replace dev $swp root handle 2: prio bands 8 |
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__mlnx_qos -i $swp --buffer_size=$size,0,0,0,0,0,0,0 > /dev/null |
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check_buf_size 0 "== $size" "post replace different kind, set size: " |
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tc qdisc delete dev $swp root |
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__mlnx_qos -i $swp --buffer_size=$size,0,0,0,0,0,0,0 &> /dev/null |
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check_fail $? "buffer_size should fail after qdisc is deleted" |
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log_test "TC: buffer size" |
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} |
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test_int_buf() |
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{ |
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local what=$1; shift |
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RET=0 |
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local buf0size=$(get_buf_size 0) |
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local tot_size=$(get_tot_size) |
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# Size of internal buffer and buffer 9. |
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local dsize=$((tot_size - buf0size)) |
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tc qdisc add dev $swp clsact |
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tc filter add dev $swp egress matchall skip_sw action mirred egress mirror dev $swp |
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local buf0size_2=$(get_buf_size 0) |
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local tot_size_2=$(get_tot_size) |
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local dsize_2=$((tot_size_2 - buf0size_2)) |
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# Egress SPAN should have added to the "invisible" buffer configuration. |
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((dsize_2 > dsize)) |
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check_err $? "Invisible buffers account for '$dsize_2', expected '> $dsize'" |
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mtu_set $swp 3000 |
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local buf0size_3=$(get_buf_size 0) |
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local tot_size_3=$(get_tot_size) |
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local dsize_3=$((tot_size_3 - buf0size_3)) |
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# MTU change might change buffer 0, which will show at total, but the |
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# hidden buffers should stay the same size. |
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((dsize_3 == dsize_2)) |
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check_err $? "MTU change: Invisible buffers account for '$dsize_3', expected '== $dsize_2'" |
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mtu_restore $swp |
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tc qdisc del dev $swp clsact |
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# After SPAN removal, hidden buffers should be back to the original sizes. |
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local buf0size_4=$(get_buf_size 0) |
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local tot_size_4=$(get_tot_size) |
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local dsize_4=$((tot_size_4 - buf0size_4)) |
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((dsize_4 == dsize)) |
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check_err $? "SPAN removed: Invisible buffers account for '$dsize_4', expected '== $dsize'" |
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log_test "${what}internal buffer size" |
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} |
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test_tc_int_buf() |
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{ |
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local cell_size=$(devlink_cell_size_get) |
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local size=$((cell_size * 1000)) |
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tc qdisc replace dev $swp root handle 1: bfifo limit 1.5M |
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test_int_buf "TC: " |
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__mlnx_qos -i $swp --buffer_size=$size,0,0,0,0,0,0,0 > /dev/null |
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test_int_buf "TC+buffsize: " |
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__mlnx_qos -i $swp --buffer_size=0,0,0,0,0,0,0,0 > /dev/null |
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tc qdisc delete dev $swp root |
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} |
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trap cleanup EXIT |
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bail_on_lldpad |
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setup_wait |
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tests_run |
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exit $EXIT_STATUS
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