LU-15210 tests: fix sanity-lnet to handle duplicate IP

[fs/lustre-release.git] / lustre / tests / sanity-lnet.sh

#!/bin/bash
#
# Run select tests by setting ONLY, or as arguments to the script.
# Skip specific tests by setting EXCEPT.
#

set -e

ONLY=${ONLY:-"$*"}

# bug number for skipped test:
ALWAYS_EXCEPT="$SANITY_LNET_EXCEPT "
# UPDATE THE COMMENT ABOVE WITH BUG NUMBERS WHEN CHANGING ALWAYS_EXCEPT!

# skip the grant tests for ARM until they are fixed
if [[ $(uname -m) = aarch64 ]]; then
        # bug number:    LU-14067
        ALWAYS_EXCEPT+=" 300"
fi

[ "$SLOW" = "no" ] && EXCEPT_SLOW=""

LUSTRE=${LUSTRE:-$(cd $(dirname $0)/..; echo $PWD)}

. $LUSTRE/tests/test-framework.sh
CLEANUP=${CLEANUP:-:}
SETUP=${SETUP:-:}
init_test_env $@
. ${CONFIG:=$LUSTRE/tests/cfg/$NAME.sh}
init_logging

build_test_filter

[[ -z $LNETCTL ]] && skip "Need lnetctl"

restore_mounts=false

if is_mounted $MOUNT || is_mounted $MOUNT2; then
        cleanupall || error "Failed cleanup prior to test execution"
        restore_mounts=true
fi

cleanup_lnet() {
        echo "Cleaning up LNet"
        lsmod | grep -q lnet &&
                $LNETCTL lnet unconfigure 2>/dev/null
        unload_modules
}

restore_modules=false
if module_loaded lnet ; then
        cleanup_lnet || error "Failed to unload modules before test execution"
        restore_modules=true
fi

cleanup_testsuite() {
        trap "" EXIT
        # Cleanup any tmp files created by the sub tests
        rm -f $TMP/sanity-lnet-*.yaml $LNET_PARAMS_FILE
        cleanup_netns
        cleanup_lnet
        if $restore_mounts; then
                setupall || error "Failed to setup Lustre after test execution"
        elif $restore_modules; then
                load_modules ||
                        error "Couldn't load modules after test execution"
        fi
        return 0
}

load_lnet() {
        load_module ../libcfs/libcfs/libcfs
        # Prevent local MODOPTS_LIBCFS being passed as part of environment
        # variable to remote nodes
        unset MODOPTS_LIBCFS

        set_default_debug "neterror net nettrace malloc"
        load_module ../lnet/lnet/lnet "$@"

        LNDPATH=${LNDPATH:-"../lnet/klnds"}
        if [ -z "$LNETLND" ]; then
                case $NETTYPE in
                o2ib*)  LNETLND="o2iblnd/ko2iblnd" ;;
                tcp*)   LNETLND="socklnd/ksocklnd" ;;
                *)      local lnd="${NETTYPE%%[0-9]}lnd"
                        [ -f "$LNDPATH/$lnd/k$lnd.ko" ] &&
                                LNETLND="$lnd/k$lnd" ||
                                LNETLND="socklnd/ksocklnd"
                esac
        fi
        load_module ../lnet/klnds/$LNETLND
}

do_lnetctl() {
        echo "$LNETCTL $@"
        $LNETCTL "$@"
}

TESTNS='test_ns'
FAKE_IF="test1pg"
FAKE_IP="10.1.2.3"
do_ns() {
        echo "ip netns exec $TESTNS $@"
        ip netns exec $TESTNS "$@"
}

setup_fakeif() {
        local netns="$1"

        local netns_arg=""
        [[ -n $netns ]] &&
                netns_arg="netns $netns"

        ip link add 'test1pl' type veth peer name $FAKE_IF $netns_arg
        ip link set 'test1pl' up
        if [[ -n $netns ]]; then
                do_ns ip addr add "${FAKE_IP}/31" dev $FAKE_IF
                do_ns ip link set $FAKE_IF up
        else
                ip addr add "${FAKE_IP}/31" dev $FAKE_IF
                ip link set $FAKE_IF up
        fi
}

cleanup_fakeif() {
        ip link show test1pl >& /dev/null && ip link del test1pl || return 0
}

setup_netns() {
        cleanup_netns

        ip netns add $TESTNS
        setup_fakeif $TESTNS
}

cleanup_netns() {
        (ip netns list | grep -q $TESTNS) && ip netns del $TESTNS
        cleanup_fakeif
}

configure_dlc() {
        echo "Loading LNet and configuring DLC"
        load_lnet
        do_lnetctl lnet configure
}

GLOBAL_YAML_FILE=$TMP/sanity-lnet-global.yaml
define_global_yaml() {
        $LNETCTL export --backup >${GLOBAL_YAML_FILE} ||
                error "Failed to export global yaml $?"
}

reinit_dlc() {
        if lsmod | grep -q lnet; then
                do_lnetctl lnet unconfigure ||
                        error "lnetctl lnet unconfigure failed $?"
                do_lnetctl lnet configure ||
                        error "lnetctl lnet configure failed $?"
        else
                configure_dlc || error "configure_dlc failed $?"
        fi
        define_global_yaml
}

append_global_yaml() {
        [[ ! -e ${GLOBAL_YAML_FILE} ]] &&
                error "Missing global yaml at ${GLOBAL_YAML_FILE}"

        cat ${GLOBAL_YAML_FILE} >> $TMP/sanity-lnet-$testnum-expected.yaml
}

create_base_yaml_file() {
        append_global_yaml
}

compare_yaml_files() {
        local expected="$TMP/sanity-lnet-$testnum-expected.yaml"
        local actual="$TMP/sanity-lnet-$testnum-actual.yaml"
        local rc=0
        ! [[ -e $expected ]] && echo "$expected not found" && return 1
        ! [[ -e $actual ]] && echo "$actual not found" && return 1
        diff -upN ${actual} ${expected} || rc=$?
        echo "Expected:"
        cat $expected
        echo "Actual:"
        cat $actual
        return $rc
}

validate_nid() {
        local nid="$1"
        local net="${nid//*@/}"
        local addr="${nid//@*/}"

        local num_re='[0-9]\+'
        local ip_re="[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}"

        if [[ $net =~ gni[0-9]* ]]; then
                [[ $addr =~ ${num_re} ]] && return 0
        else
                [[ $addr =~ ${ip_re} ]] && return 0
        fi
}

validate_nids() {
        local yfile=$TMP/sanity-lnet-$testnum-actual.yaml
        local primary_nids=$(awk '/- primary nid:/{print $NF}' $yfile | xargs echo)
        local secondary_nids=$(awk '/- nid:/{print $NF}' $yfile | xargs echo)
        local gateway_nids=$(awk '/gateway:/{print $NF}' $yfile | xargs echo)

        local nid
        for nid in $primary_nids $secondary_nids; do
                validate_nid "$nid" || error "Bad NID \"${nid}\""
        done
        return 0
}

validate_peer_nids() {
        local num_peers="$1"
        local nids_per_peer="$2"

        local expect_p="$num_peers"
        # The primary nid also shows up in the list of secondary nids
        local expect_s="$(($num_peers + $(($nids_per_peer*$num_peers))))"

        local actual_p=$(grep -c -- '- primary nid:' $TMP/sanity-lnet-$testnum-actual.yaml)
        local actual_s=$(grep -c -- '- nid:' $TMP/sanity-lnet-$testnum-actual.yaml)
        if [[ $expect_p -ne $actual_p ]]; then
                compare_yaml_files
                error "Expected $expect_p but found $actual_p primary nids"
        elif [[ $expect_s -ne $actual_s ]]; then
                compare_yaml_files
                error "Expected $expect_s but found $actual_s secondary nids"
        fi
        validate_nids
}

validate_gateway_nids() {
        local expect_gw=$(grep -c -- 'gateway:' $TMP/sanity-lnet-$testnum-expected.yaml)
        local actual_gw=$(grep -c -- 'gateway:' $TMP/sanity-lnet-$testnum-actual.yaml)
        if [[ $expect_gw -ne $actual_gw ]]; then
                compare_yaml_files
                error "Expected $expect_gw gateways but found $actual_gw gateways"
        fi
        validate_nids
}

cleanupall -f
setup_netns || error "setup_netns failed with $?"

# Determine the local interface(s) used for LNet
load_modules || error "Failed to load modules"
NIDS=( $($LCTL list_nids | xargs echo) )
if [[ -z ${NIDS[@]} ]]; then
        error "No NID configured after module load"
fi

do_lnetctl net show
ip a

declare -a INTERFACES
for ((i = 0; i < ${#NIDS[@]}; i++)); do
        ip=$(sed 's/^\(.*\)@.*$/\1/'<<<${NIDS[i]})
        INTERFACES[i]=$(ip -o a s |
                        awk '$4 ~ /^'$ip'\//{print $2}')
        INTERFACES=($(echo "${INTERFACES[@]}" | tr ' ' '\n' | uniq | tr '\n' ' '))
        if [[ -z ${INTERFACES[i]} ]]; then
                error "Can't determine interface name for NID ${NIDS[i]}"
        elif [[ 1 -ne $(wc -w <<<${INTERFACES[i]}) ]]; then
                error "Found $(wc -w <<<${INTERFACES[i]}) interfaces for NID ${NIDS[i]}. Expect 1"
        fi
done

cleanup_lnet || error "Failed to cleanup LNet"

stack_trap 'cleanup_testsuite' EXIT

test_0() {
        load_module ../lnet/lnet/lnet || error "Failed to load module rc = $?"
        do_lnetctl lnet configure || error "lnet configure failed rc = $?"
        define_global_yaml
        reinit_dlc || return $?
        do_lnetctl import <  ${GLOBAL_YAML_FILE} || error "Import failed $?"
        $LNETCTL export --backup > $TMP/sanity-lnet-$testnum-actual.yaml
        create_base_yaml_file
        compare_yaml_files || error "Configuration changed after import"
}
run_test 0 "Export empty config, import the config, compare"

compare_peer_add() {
        local prim_nid="${1:+--prim_nid $1}"
        local nid="${2:+--nid $2}"

        local actual="$TMP/sanity-lnet-$testnum-actual.yaml"

        do_lnetctl peer add ${prim_nid} ${nid} || error "peer add failed $?"
        $LNETCTL export --backup > $actual || error "export failed $?"
        compare_yaml_files
        return $?
}

test_1() {
        reinit_dlc || return $?
        cat <<EOF > $TMP/sanity-lnet-$testnum-expected.yaml
peer:
    - primary nid: 1.1.1.1@tcp
      Multi-Rail: True
      peer ni:
        - nid: 1.1.1.1@tcp
EOF
        append_global_yaml
        compare_peer_add "1.1.1.1@tcp"
}
run_test 1 "Add peer with single nid (tcp)"

test_2() {
        reinit_dlc || return $?
        cat <<EOF > $TMP/sanity-lnet-$testnum-expected.yaml
peer:
    - primary nid: 2.2.2.2@o2ib
      Multi-Rail: True
      peer ni:
        - nid: 2.2.2.2@o2ib
EOF
        append_global_yaml
        compare_peer_add "2.2.2.2@o2ib"
}
run_test 2 "Add peer with single nid (o2ib)"

test_3() {
        reinit_dlc || return $?
        cat <<EOF > $TMP/sanity-lnet-$testnum-expected.yaml
peer:
    - primary nid: 3.3.3.3@tcp
      Multi-Rail: True
      peer ni:
        - nid: 3.3.3.3@tcp
        - nid: 3.3.3.3@o2ib
EOF
        append_global_yaml
        compare_peer_add "3.3.3.3@tcp" "3.3.3.3@o2ib"
}
run_test 3 "Add peer with tcp primary o2ib secondary"

test_4() {
        reinit_dlc || return $?
        cat <<EOF > $TMP/sanity-lnet-$testnum-expected.yaml
peer:
    - primary nid: 4.4.4.4@tcp
      Multi-Rail: True
      peer ni:
        - nid: 4.4.4.4@tcp
        - nid: 4.4.4.1@tcp
        - nid: 4.4.4.2@tcp
        - nid: 4.4.4.3@tcp
EOF
        append_global_yaml
        echo "Add peer with nidrange (tcp)"
        compare_peer_add "4.4.4.4@tcp" "4.4.4.[1-3]@tcp"

        echo "Add peer with nidrange that overlaps primary nid (tcp)"
        compare_peer_add "4.4.4.4@tcp" "4.4.4.[1-4]@tcp"
}
run_test 4 "Add peer with nidrange (tcp)"

test_5() {
        reinit_dlc || return $?
        cat <<EOF > $TMP/sanity-lnet-$testnum-expected.yaml
peer:
    - primary nid: 5.5.5.5@o2ib
      Multi-Rail: True
      peer ni:
        - nid: 5.5.5.5@o2ib
        - nid: 5.5.5.1@o2ib
        - nid: 5.5.5.2@o2ib
        - nid: 5.5.5.3@o2ib
        - nid: 5.5.5.4@o2ib
EOF
        append_global_yaml
        echo "Add peer with nidrange (o2ib)"
        compare_peer_add "5.5.5.5@o2ib" "5.5.5.[1-4]@o2ib"

        echo "Add peer with nidranage that overlaps primary nid (o2ib)"
        compare_peer_add "5.5.5.5@o2ib" "5.5.5.[1-4]@o2ib"
}
run_test 5 "Add peer with nidrange (o2ib)"

test_6() {
        reinit_dlc || return $?
        cat <<EOF > $TMP/sanity-lnet-$testnum-expected.yaml
peer:
    - primary nid: 6.6.6.6@tcp
      Multi-Rail: True
      peer ni:
        - nid: 6.6.6.6@tcp
        - nid: 6.6.6.0@tcp
        - nid: 6.6.6.2@tcp
        - nid: 6.6.6.4@tcp
        - nid: 6.6.7.0@tcp
        - nid: 6.6.7.2@tcp
        - nid: 6.6.7.4@tcp
        - nid: 6.6.1.0@o2ib
        - nid: 6.6.1.3@o2ib
        - nid: 6.6.1.6@o2ib
        - nid: 6.6.3.0@o2ib
        - nid: 6.6.3.3@o2ib
        - nid: 6.6.3.6@o2ib
        - nid: 6@gni
        - nid: 10@gni
EOF
        append_global_yaml
        compare_peer_add "6.6.6.6@tcp" \
                "6.6.[6-7].[0-4/2]@tcp,6.6.[1-4/2].[0-6/3]@o2ib,[6-12/4]@gni"
}
run_test 6 "Add peer with multiple nidranges"

compare_peer_del() {
        local prim_nid="${1:+--prim_nid $1}"
        local nid="${2:+--nid $2}"

        local actual="$TMP/sanity-lnet-$testnum-actual.yaml"

        do_lnetctl peer del ${prim_nid} ${nid} || error "peer del failed $?"
        $LNETCTL export --backup > $actual || error "export failed $?"
        compare_yaml_files
        return $?
}

test_7() {
        reinit_dlc || return $?
        create_base_yaml_file

        echo "Delete peer with single nid (tcp)"
        do_lnetctl peer add --prim_nid 7.7.7.7@tcp || error "Peer add failed $?"
        compare_peer_del "7.7.7.7@tcp"

        echo "Delete peer with single nid (o2ib)"
        do_lnetctl peer add --prim_nid 7.7.7.7@o2ib || error "Peer add failed $?"
        compare_peer_del "7.7.7.7@o2ib"

        echo "Delete peer that has multiple nids (tcp)"
        do_lnetctl peer add --prim_nid 7.7.7.7@tcp --nid 7.7.7.[8-12]@tcp ||
                error "Peer add failed $?"
        compare_peer_del "7.7.7.7@tcp"

        echo "Delete peer that has multiple nids (o2ib)"
        do_lnetctl peer add --prim_nid 7.7.7.7@o2ib --nid 7.7.7.[8-12]@o2ib ||
                error "Peer add failed $?"
        compare_peer_del "7.7.7.7@o2ib"

        echo "Delete peer that has both tcp and o2ib nids"
        do_lnetctl peer add --prim_nid 7.7.7.7@tcp \
                --nid 7.7.7.[9-12]@tcp,7.7.7.[13-15]@o2ib ||
                error "Peer add failed $?"
        compare_peer_del "7.7.7.7@tcp"

        echo "Delete peer with single nid (gni)"
        do_lnetctl peer add --prim_nid 7@gni || error "Peer add failed $?"
        compare_peer_del "7@gni"

        echo "Delete peer that has multiple nids (gni)"
        do_lnetctl peer add --prim_nid 7@gni --nid [8-12]@gni ||
                error "Peer add failed $?"
        compare_peer_del "7@gni"

        echo "Delete peer that has tcp, o2ib and gni nids"
        do_lnetctl peer add --prim_nid 7@gni \
                --nid [8-12]@gni,7.7.7.[9-12]@tcp,7.7.7.[13-15]@o2ib ||
                error "Peer add failed $?"
        compare_peer_del "7@gni"
}
run_test 7 "Various peer delete tests"

test_8() {
        reinit_dlc || return $?

        cat <<EOF > $TMP/sanity-lnet-$testnum-expected.yaml
peer:
    - primary nid: 8.8.8.8@tcp
      Multi-Rail: True
      peer ni:
        - nid: 8.8.8.8@tcp
        - nid: 8.8.8.10@tcp
        - nid: 8.8.8.11@tcp
        - nid: 8.8.8.12@tcp
        - nid: 8.8.8.14@tcp
        - nid: 8.8.8.15@tcp
EOF
        append_global_yaml

        do_lnetctl peer add --prim_nid 8.8.8.8@tcp --nid 8.8.8.[10-15]@tcp ||
                error "Peer add failed $?"
        compare_peer_del "8.8.8.8@tcp" "8.8.8.13@tcp"
}
run_test 8 "Delete single secondary nid from peer (tcp)"

test_9() {
        reinit_dlc || return $?

        cat <<EOF > $TMP/sanity-lnet-$testnum-expected.yaml
peer:
    - primary nid: 9.9.9.9@tcp
      Multi-Rail: True
      peer ni:
        - nid: 9.9.9.9@tcp
EOF
        append_global_yaml

        do_lnetctl peer add --prim_nid 9.9.9.9@tcp \
                --nid 9.9.9.[11-16]@tcp || error "Peer add failed $?"
        compare_peer_del "9.9.9.9@tcp" "9.9.9.[11-16]@tcp"
}
run_test 9 "Delete all secondary nids from peer (tcp)"

test_10() {
        reinit_dlc || return $?

        cat <<EOF > $TMP/sanity-lnet-$testnum-expected.yaml
peer:
    - primary nid: 10.10.10.10@tcp
      Multi-Rail: True
      peer ni:
        - nid: 10.10.10.10@tcp
        - nid: 10.10.10.12@tcp
        - nid: 10.10.10.13@tcp
        - nid: 10.10.10.15@tcp
        - nid: 10.10.10.16@tcp
EOF
        append_global_yaml
        do_lnetctl peer add --prim_nid 10.10.10.10@tcp \
                --nid 10.10.10.[12-16]@tcp || error "Peer add failed $?"
        compare_peer_del "10.10.10.10@tcp" "10.10.10.14@tcp"
}
run_test 10 "Delete single secondary nid from peer (o2ib)"

test_11() {
        reinit_dlc || return $?

        cat <<EOF > $TMP/sanity-lnet-$testnum-expected.yaml
peer:
    - primary nid: 11.11.11.11@tcp
      Multi-Rail: True
      peer ni:
        - nid: 11.11.11.11@tcp
EOF
        append_global_yaml
        do_lnetctl peer add --prim_nid 11.11.11.11@tcp \
                --nid 11.11.11.[13-17]@tcp || error "Peer add failed $?"
        compare_peer_del "11.11.11.11@tcp" "11.11.11.[13-17]@tcp"
}
run_test 11 "Delete all secondary nids from peer (o2ib)"

test_12() {
        reinit_dlc || return $?

        cat <<EOF > $TMP/sanity-lnet-$testnum-expected.yaml
peer:
    - primary nid: 12.12.12.12@o2ib
      Multi-Rail: True
      peer ni:
        - nid: 12.12.12.12@o2ib
        - nid: 13.13.13.13@o2ib
        - nid: 14.13.13.13@o2ib
        - nid: 14.15.13.13@o2ib
        - nid: 15.17.1.5@tcp
        - nid: 15.17.1.10@tcp
        - nid: 15.17.1.20@tcp
EOF
        append_global_yaml
        do_lnetctl peer add --prim_nid 12.12.12.12@o2ib \
                --nid [13-14/1].[13-15/2].13.13@o2ib,[15-16/3].[17-19/4].[1].[5-20/5]@tcp ||
                error "Peer add failed $?"
        compare_peer_del "12.12.12.12@o2ib" "13.15.13.13@o2ib,15.17.1.15@tcp"
}
run_test 12 "Delete a secondary nid from peer (tcp and o2ib)"

test_13() {
        reinit_dlc || return $?

        cat <<EOF > $TMP/sanity-lnet-$testnum-expected.yaml
peer:
    - primary nid: 13.13.13.13@o2ib
      Multi-Rail: True
      peer ni:
        - nid: 13.13.13.13@o2ib
EOF
        append_global_yaml
        do_lnetctl peer add --prim_nid 13.13.13.13@o2ib \
                --nid [14-15].[1-2/1].[1].[100-254/10]@tcp,14.14.[254].14@o2ib ||
                error "Peer add failed $?"
        compare_peer_del "13.13.13.13@o2ib" \
                "[14-15].[1-2/1].[1].[100-254/10]@tcp,14.14.[254].14@o2ib"
}
run_test 13 "Delete all secondary nids from peer (tcp and o2ib)"

create_nid() {
        local num="$1"
        local net="$2"

        if [[ $net =~ gni* ]]; then
                echo "${num}@${net}"
        else
                echo "${num}.${num}.${num}.${num}@${net}"
        fi
}

create_mr_peer_yaml() {
        local num_peers="$1"
        local secondary_nids="$2"
        local net="$3"

        echo "Generating peer yaml for $num_peers peers with $secondary_nids secondary nids"
        echo "peer:" >> $TMP/sanity-lnet-$testnum-expected.yaml
        local i
        local total_nids=$((num_peers + $((num_peers * secondary_nids))))
        local created=0
        local nidnum=1
        while [[ $created -lt $num_peers ]]; do
                local primary=$(create_nid ${nidnum} ${net})
        cat <<EOF >> $TMP/sanity-lnet-$testnum-expected.yaml
    - primary nid: $primary
      Multi-Rail: True
      peer ni:
        - nid: $primary
EOF
                local j
                local start=$((nidnum + 1))
                local end=$((nidnum + $secondary_nids))
                for j in $(seq ${start} ${end}); do
                        local nid=$(create_nid $j ${net})
                        echo "        - nid: $nid" >> $TMP/sanity-lnet-$testnum-expected.yaml
                done
                nidnum=$((end + 1))
                ((created++))
        done
}

test_14() {
        reinit_dlc || return $?

        echo "Create single peer, single nid, using import"
        create_mr_peer_yaml 1 0 tcp
        do_lnetctl import < $TMP/sanity-lnet-$testnum-expected.yaml ||
                error "Import failed $?"
        append_global_yaml
        $LNETCTL export --backup > $TMP/sanity-lnet-$testnum-actual.yaml
        compare_yaml_files

        echo "Delete single peer using import --del"
        do_lnetctl import --del < $TMP/sanity-lnet-$testnum-expected.yaml ||
                error "Import failed $?"
        rm -f $TMP/sanity-lnet-$testnum-expected.yaml
        create_base_yaml_file
        $LNETCTL export --backup > $TMP/sanity-lnet-$testnum-actual.yaml
        compare_yaml_files
}
run_test 14 "import peer create/delete with single nid"

test_15() {
        reinit_dlc || return $?

        echo "Create multiple peers, single nid per peer, using import"
        create_mr_peer_yaml 5 0 o2ib
        # The ordering of nids for this use-case is non-deterministic, so we
        # we can't just diff the expected/actual output.
        do_lnetctl import < $TMP/sanity-lnet-$testnum-expected.yaml ||
                error "Import failed $?"
        $LNETCTL export --backup > $TMP/sanity-lnet-$testnum-actual.yaml
        validate_peer_nids 5 0

        echo "Delete multiple peers, single nid per peer, using import --del"
        do_lnetctl import --del < $TMP/sanity-lnet-$testnum-expected.yaml ||
                error "Import failed $?"
        rm -f $TMP/sanity-lnet-$testnum-expected.yaml
        create_base_yaml_file
        $LNETCTL export --backup > $TMP/sanity-lnet-$testnum-actual.yaml
        compare_yaml_files
}
run_test 15 "import multi peer create/delete with single nid per peer"

test_16() {
        reinit_dlc || return $?

        echo "Create single peer, multiple nids, using import"
        create_mr_peer_yaml 1 5 tcp
        do_lnetctl import < $TMP/sanity-lnet-$testnum-expected.yaml ||
                error "Import failed $?"
        $LNETCTL export --backup > $TMP/sanity-lnet-$testnum-actual.yaml
        validate_peer_nids 1 5

        echo "Delete single peer, multiple nids, using import --del"
        do_lnetctl import --del < $TMP/sanity-lnet-$testnum-expected.yaml ||
                error "Import failed $?"
        rm -f $TMP/sanity-lnet-$testnum-expected.yaml
        create_base_yaml_file
        $LNETCTL export --backup > $TMP/sanity-lnet-$testnum-actual.yaml
        compare_yaml_files
}
run_test 16 "import peer create/delete with multiple nids"

test_17() {
        reinit_dlc || return $?

        echo "Create multiple peers, multiple nids per peer, using import"
        create_mr_peer_yaml 5 7 o2ib
        do_lnetctl import < $TMP/sanity-lnet-$testnum-expected.yaml ||
                error "Import failed $?"
        $LNETCTL export --backup > $TMP/sanity-lnet-$testnum-actual.yaml
        validate_peer_nids 5 7

        echo "Delete multiple peers, multiple nids per peer, using import --del"
        do_lnetctl import --del < $TMP/sanity-lnet-$testnum-expected.yaml ||
                error "Import failed $?"
        rm -f $TMP/sanity-lnet-$testnum-expected.yaml
        create_base_yaml_file
        $LNETCTL export --backup > $TMP/sanity-lnet-$testnum-actual.yaml
        compare_yaml_files
}
run_test 17 "import multi peer create/delete with multiple nids"

test_18a() {
        reinit_dlc || return $?

        cat <<EOF > $TMP/sanity-lnet-$testnum-expected.yaml
peer:
    - primary nid: 1.1.1.1@tcp
      Multi-Rail: True
      peer ni:
        - nid: 1.1.1.1@tcp
        - nid: 2.2.2.2@tcp
        - nid: 4.4.4.4@tcp
        - nid: 3.3.3.3@o2ib
        - nid: 5@gni
EOF
        echo "Import peer with 5 nids"
        cat $TMP/sanity-lnet-$testnum-expected.yaml
        do_lnetctl import < $TMP/sanity-lnet-$testnum-expected.yaml ||
                error "Import failed $?"
        cat <<EOF > $TMP/sanity-lnet-$testnum-expected.yaml
peer:
    - primary nid: 1.1.1.1@tcp
      Multi-Rail: True
      peer ni:
        - nid: 2.2.2.2@tcp
        - nid: 3.3.3.3@o2ib
        - nid: 5@gni
EOF
        echo "Delete three of the nids"
        cat $TMP/sanity-lnet-$testnum-expected.yaml
        do_lnetctl import --del < $TMP/sanity-lnet-$testnum-expected.yaml
        cat <<EOF > $TMP/sanity-lnet-$testnum-expected.yaml
peer:
    - primary nid: 1.1.1.1@tcp
      Multi-Rail: True
      peer ni:
        - nid: 1.1.1.1@tcp
        - nid: 4.4.4.4@tcp
EOF
        echo "Check peer has expected nids remaining"
        $LNETCTL export --backup > $TMP/sanity-lnet-$testnum-actual.yaml
        append_global_yaml
        compare_yaml_files
}
run_test 18a "Delete a subset of nids from a single peer using import --del"

test_18b() {
        reinit_dlc || return $?

        cat <<EOF > $TMP/sanity-lnet-$testnum-expected.yaml
peer:
    - primary nid: 1.1.1.1@tcp
      Multi-Rail: True
      peer ni:
        - nid: 1.1.1.1@tcp
        - nid: 2.2.2.2@tcp
        - nid: 4.4.4.4@tcp
        - nid: 3.3.3.3@o2ib
        - nid: 5@gni
    - primary nid: 6.6.6.6@o2ib
      Multi-Rail: True
      peer ni:
        - nid: 6.6.6.6@o2ib
        - nid: 7.7.7.7@tcp
        - nid: 8.8.8.8@tcp
        - nid: 9.9.9.9@tcp
        - nid: 10@gni
EOF
        echo "Import two peers with 5 nids each"
        cat $TMP/sanity-lnet-$testnum-expected.yaml
        do_lnetctl import < $TMP/sanity-lnet-$testnum-expected.yaml ||
                error "Import failed $?"
        cat <<EOF > $TMP/sanity-lnet-$testnum-expected.yaml
peer:
    - primary nid: 1.1.1.1@tcp
      Multi-Rail: True
      peer ni:
        - nid: 2.2.2.2@tcp
        - nid: 3.3.3.3@o2ib
        - nid: 5@gni
    - primary nid: 6.6.6.6@o2ib
      Multi-Rail: True
      peer ni:
        - nid: 7.7.7.7@tcp
        - nid: 8.8.8.8@tcp
        - nid: 10@gni
EOF
        echo "Delete three of the nids from each peer"
        cat $TMP/sanity-lnet-$testnum-expected.yaml
        do_lnetctl import --del < $TMP/sanity-lnet-$testnum-expected.yaml
        cat <<EOF > $TMP/sanity-lnet-$testnum-expected.yaml
peer:
    - primary nid: 6.6.6.6@o2ib
      Multi-Rail: True
      peer ni:
        - nid: 6.6.6.6@o2ib
        - nid: 7.7.7.7@tcp
    - primary nid: 1.1.1.1@tcp
      Multi-Rail: True
      peer ni:
        - nid: 1.1.1.1@tcp
        - nid: 4.4.4.4@tcp
EOF
        append_global_yaml
        echo "Check peers have expected nids remaining"
        $LNETCTL export --backup > $TMP/sanity-lnet-$testnum-actual.yaml
        compare_yaml_files
        validate_peer_nids 2 1
}
run_test 18b "Delete multiple nids from multiple peers using import --del"

test_19() {
        reinit_dlc || return $?
        cat <<EOF > $TMP/sanity-lnet-$testnum-expected.yaml
peer:
    - primary nid: 19@gni
      Multi-Rail: True
      peer ni:
        - nid: 19@gni
EOF
        append_global_yaml
        compare_peer_add "19@gni"
}
run_test 19 "Add peer with single nid (gni)"

test_20() {
        reinit_dlc || return $?
        cat <<EOF > $TMP/sanity-lnet-$testnum-expected.yaml
peer:
    - primary nid: 20@gni
      Multi-Rail: True
      peer ni:
        - nid: 20@gni
        - nid: 20.20.20.20@tcp
        - nid: 20.20.20.20@o2ib
EOF
        append_global_yaml
        compare_peer_add "20@gni" "20.20.20.20@tcp,20.20.20.20@o2ib"
}
run_test 20 "Add peer with gni primary and tcp, o2ib secondary"

test_21() {
        reinit_dlc || return $?
        cat <<EOF > $TMP/sanity-lnet-$testnum-expected.yaml
peer:
    - primary nid: 21@gni
      Multi-Rail: True
      peer ni:
        - nid: 21@gni
        - nid: 22@gni
        - nid: 23@gni
        - nid: 24@gni
        - nid: 25@gni
EOF
        append_global_yaml
        echo "Add peer with nidrange (gni)"
        compare_peer_add "21@gni" "[22-25]@gni" || error
        echo "Add peer with nidrange that overlaps primary nid (gni)"
        compare_peer_add "21@gni" "[21-25]@gni"
}
run_test 21 "Add peer with nidrange (gni)"

test_22() {
        reinit_dlc || return $?
        cat <<EOF > $TMP/sanity-lnet-$testnum-expected.yaml
peer:
    - primary nid: 22@gni
      Multi-Rail: True
      peer ni:
        - nid: 22@gni
        - nid: 24@gni
        - nid: 25@gni
        - nid: 27@gni
        - nid: 28@gni
        - nid: 29@gni
EOF
        append_global_yaml
        do_lnetctl peer add --prim_nid 22@gni --nid [24-29]@gni ||
                error "Peer add failed $?"
        compare_peer_del "22@gni" "26@gni"
}
run_test 22 "Delete single secondary nid from peer (gni)"

test_23() {
        reinit_dlc || return $?
        cat <<EOF > $TMP/sanity-lnet-$testnum-expected.yaml
peer:
    - primary nid: 23@gni
      Multi-Rail: True
      peer ni:
        - nid: 23@gni
EOF
        append_global_yaml

        do_lnetctl peer add --prim_nid 23@gni --nid [25-29]@gni ||
                error "Peer add failed $?"
        compare_peer_del "23@gni" "[25-29]@gni"
}
run_test 23 "Delete all secondary nids from peer (gni)"

test_24() {
        reinit_dlc || return $?
        cat <<EOF > $TMP/sanity-lnet-$testnum-expected.yaml
peer:
    - primary nid: 24@gni
      Multi-Rail: True
      peer ni:
        - nid: 24@gni
        - nid: 11@gni
        - nid: 13.13.13.13@o2ib
        - nid: 14.13.13.13@o2ib
        - nid: 14.15.13.13@o2ib
        - nid: 15.17.1.5@tcp
        - nid: 15.17.1.10@tcp
        - nid: 15.17.1.20@tcp
EOF
        append_global_yaml
        do_lnetctl peer add --prim_nid 24@gni \
                --nid [13-14/1].[13-15/2].13.13@o2ib,[15-16/3].[17-19/4].[1].[5-20/5]@tcp,[5-12/6]@gni ||
                error "Peer add failed $?"
        compare_peer_del "24@gni" "5@gni,13.15.13.13@o2ib,15.17.1.15@tcp"
}
run_test 24 "Delete a secondary nid from peer (tcp, o2ib and gni)"

test_25() {
        reinit_dlc || return $?
        cat <<EOF > $TMP/sanity-lnet-$testnum-expected.yaml
peer:
    - primary nid: 25@gni
      Multi-Rail: True
      peer ni:
        - nid: 25@gni
EOF
        append_global_yaml
        do_lnetctl peer add --prim_nid 25@gni \
                --nid [26-27].[4-10/3].26.26@tcp,26.26.26.26@o2ib,[30-35]@gni ||
                error "Peer add failed $?"
        compare_peer_del "25@gni" \
                "[26-27].[4-10/3].26.26@tcp,26.26.26.26@o2ib,[30-35]@gni"
}
run_test 25 "Delete all secondary nids from peer (tcp, gni and o2ib)"

test_99a() {
        reinit_dlc || return $?

        echo "Invalid prim_nid - peer add"
        do_lnetctl peer add --prim_nid foobar &&
                error "Command should have failed"

        echo "Invalid prim_nid - peer del"
        do_lnetctl peer del --prim_nid foobar &&
                error "Command should have failed"

        echo "Delete non-existing peer"
        do_lnetctl peer del --prim_nid 1.1.1.1@o2ib &&
                error "Command should have failed"

        echo "Don't provide mandatory argument for peer del"
        do_lnetctl peer del --nid 1.1.1.1@tcp &&
                error "Command should have failed"

        echo "Don't provide mandatory argument for peer add"
        do_lnetctl peer add --nid 1.1.1.1@tcp &&
                error "Command should have failed"

        echo "Don't provide mandatory arguments peer add"
        do_lnetctl peer add &&
                error "Command should have failed"

        echo "Invalid secondary nids"
        do_lnetctl peer add --prim_nid 1.1.1.1@tcp --nid foobar &&
                error "Command should have failed"

        echo "Exceed max nids per peer"
        do_lnetctl peer add --prim_nid 1.1.1.1@tcp --nid 1.1.1.[2-255]@tcp &&
                error "Command should have failed"

        echo "Invalid net type"
        do_lnetctl peer add --prim_nid 1@foo &&
                error "Command should have failed"

        echo "Invalid nid format"
        local invalid_nids="1@tcp 1@o2ib 1.1.1.1@gni"

        local nid
        for nid in ${invalid_nids}; do
                echo "Check invalid primary nid - '$nid'"
                do_lnetctl peer add --prim_nid $nid &&
                        error "Command should have failed"
        done

        local invalid_strs="[2-1]@gni [a-f/x]@gni 256.256.256.256@tcp"
        invalid_strs+=" 1.1.1.1.[2-5/f]@tcp 1.]2[.3.4@o2ib"
        invalid_strs+="1.[2-4,[5-6],7-8].1.1@tcp foobar"

        local nidstr
        for nidstr in ${invalid_strs}; do
                echo "Check invalid nidstring - '$nidstr'"
                do_lnetctl peer add --prim_nid 1.1.1.1@tcp --nid $nidstr &&
                        error "Command should have failed"
        done

        echo "Add non-local gateway"
        do_lnetctl route add --net tcp --gateway 1@gni &&
                error "Command should have failed"

        return 0
}
run_test 99a "Check various invalid inputs to lnetctl peer"

test_99b() {
        reinit_dlc || return $?

        create_base_yaml_file

        cat <<EOF > $TMP/sanity-lnet-$testnum-invalid.yaml
peer:
    - primary nid: 99.99.99.99@tcp
      Multi-Rail: Foobar
      peer ni:
        - nid: 99.99.99.99@tcp
EOF
        do_lnetctl import < $TMP/sanity-lnet-$testnum-invalid.yaml &&
                error "import should have failed"
        $LNETCTL export --backup > $TMP/sanity-lnet-$testnum-actual.yaml
        compare_yaml_files
}
run_test 99b "Invalid value for Multi-Rail in yaml import"

have_interface() {
        local if="$1"
        local ip=$(ip addr show dev $if | awk '/ inet /{print $2}')
        [[ -n $ip ]]
}

add_net() {
        local net="$1"
        local if="$2"

        if ! lsmod | grep -q ksocklnd ; then
                load_module ../lnet/klnds/socklnd/ksocklnd ||
                        error "Can't load ksocklnd.ko"
        fi

        do_lnetctl net add --net ${net} --if ${if} ||
                error "Failed to add net ${net} on if ${if}"
}

compare_route_add() {
        local rnet="$1"
        local gw="$2"

        local actual="$TMP/sanity-lnet-$testnum-actual.yaml"

        do_lnetctl route add --net ${rnet} --gateway ${gw} ||
                error "route add failed $?"
        # CPT configuration is pruned from the exported yaml, since the default
        # can vary across test systems (unlike default values for things like
        # peer_credits, peer_timeout, etc.)
        $LNETCTL export --backup | grep -v CPT > $actual ||
                error "export failed $?"
        validate_gateway_nids
        return $?
}

test_100() {
        reinit_dlc || return $?
        add_net "tcp" "${INTERFACES[0]}"
        cat <<EOF > $TMP/sanity-lnet-$testnum-expected.yaml
net:
    - net type: tcp
      local NI(s):
        - interfaces:
              0: ${INTERFACES[0]}
          tunables:
              peer_timeout: 180
              peer_credits: 8
              peer_buffer_credits: 0
              credits: 256
          lnd tunables:
              conns_per_peer: 1
route:
    - net: tcp7
      gateway: 7.7.7.7@tcp
      hop: -1
      priority: 0
      health_sensitivity: 1
peer:
    - primary nid: 7.7.7.7@tcp
      Multi-Rail: False
      peer ni:
        - nid: 7.7.7.7@tcp
EOF
        append_global_yaml
        compare_route_add "tcp7" "7.7.7.7@tcp" || return $?
        compare_yaml_files
}
run_test 100 "Add route with single gw (tcp)"

test_101() {
        reinit_dlc || return $?
        add_net "tcp" "${INTERFACES[0]}"
        cat <<EOF > $TMP/sanity-lnet-$testnum-expected.yaml
net:
    - net type: tcp
      local NI(s):
        - interfaces:
              0: ${INTERFACES[0]}
          tunables:
              peer_timeout: 180
              peer_credits: 8
              peer_buffer_credits: 0
              credits: 256
          lnd tunables:
              conns_per_peer: 1
route:
    - net: tcp8
      gateway: 8.8.8.10@tcp
      hop: -1
      priority: 0
      health_sensitivity: 1
    - net: tcp8
      gateway: 8.8.8.9@tcp
      hop: -1
      priority: 0
      health_sensitivity: 1
    - net: tcp8
      gateway: 8.8.8.8@tcp
      hop: -1
      priority: 0
      health_sensitivity: 1
peer:
    - primary nid: 8.8.8.9@tcp
      Multi-Rail: False
      peer ni:
        - nid: 8.8.8.9@tcp
    - primary nid: 8.8.8.10@tcp
      Multi-Rail: False
      peer ni:
        - nid: 8.8.8.10@tcp
    - primary nid: 8.8.8.8@tcp
      Multi-Rail: False
      peer ni:
        - nid: 8.8.8.8@tcp
EOF
        append_global_yaml
        compare_route_add "tcp8" "8.8.8.[8-10]@tcp"
}
run_test 101 "Add route with multiple gw (tcp)"

compare_route_del() {
        local rnet="$1"
        local gw="$2"

        local actual="$TMP/sanity-lnet-$testnum-actual.yaml"

        do_lnetctl route del --net ${rnet} --gateway ${gw} ||
                error "route del failed $?"
        $LNETCTL export --backup > $actual ||
                error "export failed $?"
        validate_gateway_nids
}

test_102() {
        reinit_dlc || return $?
        add_net "tcp" "${INTERFACES[0]}"
        $LNETCTL export --backup > $TMP/sanity-lnet-$testnum-expected.yaml
        do_lnetctl route add --net tcp102 --gateway 102.102.102.102@tcp ||
                error "route add failed $?"
        compare_route_del "tcp102" "102.102.102.102@tcp"
}
run_test 102 "Delete route with single gw (tcp)"

test_103() {
        reinit_dlc || return $?
        add_net "tcp" "${INTERFACES[0]}"
        $LNETCTL export --backup > $TMP/sanity-lnet-$testnum-expected.yaml
        do_lnetctl route add --net tcp103 \
                --gateway 103.103.103.[103-120/4]@tcp ||
                error "route add failed $?"
        compare_route_del "tcp103" "103.103.103.[103-120/4]@tcp"
}
run_test 103 "Delete route with multiple gw (tcp)"

test_104() {
        local tyaml="$TMP/sanity-lnet-$testnum-expected.yaml"

        reinit_dlc || return $?

        # Default value is '3'
        local val=$($LNETCTL global show | awk '/response_tracking/{print $NF}')
        [[ $val -ne 3 ]] &&
                error "Expect 3 found $val"

        echo "Set < 0;  Should fail"
        do_lnetctl set response_tracking -1 &&
                error "should have failed $?"

        reinit_dlc || return $?
        cat <<EOF > $tyaml
global:
    response_tracking: -10
EOF
        do_lnetctl import < $tyaml &&
                error "should have failed $?"

        echo "Check valid values; Should succeed"
        local i
        for ((i = 0; i < 4; i++)); do
                reinit_dlc || return $?
                do_lnetctl set response_tracking $i ||
                        error "should have succeeded $?"
                $LNETCTL global show | grep -q "response_tracking: $i" ||
                        error "Failed to set response_tracking to $i"
                reinit_dlc || return $?
                cat <<EOF > $tyaml
global:
    response_tracking: $i
EOF
                do_lnetctl import < $tyaml ||
                        error "should have succeeded $?"
                $LNETCTL global show | grep -q "response_tracking: $i" ||
                        error "Failed to set response_tracking to $i"
        done

        reinit_dlc || return $?
        echo "Set > 3; Should fail"
        do_lnetctl set response_tracking 4 &&
                error "should have failed $?"

        reinit_dlc || return $?
        cat <<EOF > $tyaml
global:
    response_tracking: 10
EOF
        do_lnetctl import < $tyaml &&
                error "should have failed $?"
        return 0
}
run_test 104 "Set/check response_tracking param"

### load lnet in default namespace, configure in target namespace

test_200() {
        cleanup_lnet || exit 1
        load_lnet "networks=\"\""
        do_ns $LNETCTL lnet configure --all || exit 1
        $LNETCTL net show --net tcp | grep -q "nid: ${FAKE_IP}@tcp$"
}
run_test 200 "load lnet w/o module option, configure in a non-default namespace"

test_201() {
        cleanup_lnet || exit 1
        load_lnet "networks=tcp($FAKE_IF)"
        do_ns $LNETCTL lnet configure --all || exit 1
        $LNETCTL net show --net tcp | grep -q "nid: ${FAKE_IP}@tcp$"
}
run_test 201 "load lnet using networks module options in a non-default namespace"

test_202() {
        cleanup_lnet || exit 1
        load_lnet "networks=\"\" ip2nets=\"tcp0($FAKE_IF) ${FAKE_IP}\""
        do_ns $LNETCTL lnet configure --all || exit 1
        $LNETCTL net show | grep -q "nid: ${FAKE_IP}@tcp$"
}
run_test 202 "load lnet using ip2nets in a non-default namespace"


### Add the interfaces in the target namespace

test_203() {
        cleanup_lnet || exit 1
        load_lnet
        do_lnetctl lnet configure || exit 1
        do_ns $LNETCTL net add --net tcp0 --if $FAKE_IF
}
run_test 203 "add a network using an interface in the non-default namespace"

LNET_PARAMS_FILE="$TMP/$TESTSUITE.parameters"
function save_lnet_params() {
        $LNETCTL global show | egrep -v '^global:$' |
                               sed 's/://' > $LNET_PARAMS_FILE
}

function restore_lnet_params() {
        local param value
        while read param value; do
                [[ $param == max_intf ]] && continue
                [[ $param == lnd_timeout ]] && continue
                $LNETCTL set ${param} ${value} ||
                        error "Failed to restore ${param} to ${value}"
        done < $LNET_PARAMS_FILE
}

function lnet_health_pre() {
        save_lnet_params

        # Lower transaction timeout to speed up test execution
        $LNETCTL set transaction_timeout 10 ||
                error "Failed to set transaction_timeout $?"

        # Increase recovery interval so we have time to capture health values
        $LNETCTL set recovery_interval 20 ||
                error "Failed to set recovery_interval $?"

        RETRY_PARAM=$($LNETCTL global show | awk '/retry_count/{print $NF}')
        RSND_PRE=$($LNETCTL stats show | awk '/resend_count/{print $NF}')
        LO_HVAL_PRE=$($LNETCTL net show -v 2 | awk '/health value/{print $NF}' |
                      xargs echo | sed 's/ /+/g' | bc -l)

        local my_nid=$($LCTL list_nids | head -n 1)

        RMT_HVAL_PRE=$($LNETCTL peer show --nid $my_nid -v 2 2>/dev/null |
                       awk '/health value/{print $NF}' | xargs echo |
                       sed 's/ /+/g' | bc -l)

        # Might not have any peers so initialize to zero.
        RMT_HVAL_PRE=${RMT_HVAL_PRE:-0}

        return 0
}

function lnet_health_post() {
        RSND_POST=$($LNETCTL stats show | awk '/resend_count/{print $NF}')
        LO_HVAL_POST=$($LNETCTL net show -v 2 |
                       awk '/health value/{print $NF}' |
                       xargs echo | sed 's/ /+/g' | bc -l)

        local my_nid=$($LCTL list_nids | head -n 1)

        RMT_HVAL_POST=$($LNETCTL peer show --nid $my_nid -v 2 2>/dev/null |
                        awk '/health value/{print $NF}' | xargs echo |
                        sed 's/ /+/g' | bc -l)

        # Might not have any peers so initialize to zero.
        RMT_HVAL_POST=${RMT_HVAL_POST:-0}

        ${VERBOSE} &&
        echo "Pre resends: $RSND_PRE" &&
        echo "Post resends: $RSND_POST" &&
        echo "Resends delta: $((RSND_POST - RSND_PRE))" &&
        echo "Pre local health: $LO_HVAL_PRE" &&
        echo "Post local health: $LO_HVAL_POST" &&
        echo "Pre remote health: $RMT_HVAL_PRE" &&
        echo "Post remote health: $RMT_HVAL_POST"

        restore_lnet_params

        return 0
}

function check_no_resends() {
        echo "Check that no resends took place"
        [[ $RSND_POST -ne $RSND_PRE ]] &&
                error "Found resends: $RSND_POST != $RSND_PRE"

        return 0
}

function check_resends() {
        local delta=$((RSND_POST - RSND_PRE))

        echo "Check that $RETRY_PARAM resends took place"
        [[ $delta -ne $RETRY_PARAM ]] &&
                error "Expected $RETRY_PARAM resends found $delta"

        return 0
}

function check_no_local_health() {
        echo "Check that local NI health is unchanged"
        [[ $LO_HVAL_POST -ne $LO_HVAL_PRE ]] &&
                error "Local health changed: $LO_HVAL_POST != $LO_HVAL_PRE"

        return 0
}

function check_local_health() {
        echo "Check that local NI health has been changed"
        [[ $LO_HVAL_POST -eq $LO_HVAL_PRE ]] &&
                error "Local health unchanged: $LO_HVAL_POST == $LO_HVAL_PRE"

        return 0
}

function check_no_remote_health() {
        echo "Check that remote NI health is unchanged"
        [[ $RMT_HVAL_POST -ne $RMT_HVAL_PRE ]] &&
                error "Remote health changed: $RMT_HVAL_POST != $RMT_HVAL_PRE"

        return 0
}

function check_remote_health() {
        echo "Check that remote NI health has been changed"
        [[ $RMT_HVAL_POST -eq $RMT_HVAL_PRE ]] &&
                error "Remote health unchanged: $RMT_HVAL_POST == $RMT_HVAL_PRE"

        return 0
}

# See lnet/lnet/lib-msg.c:lnet_health_check()
LNET_LOCAL_RESEND_STATUSES="local_interrupt local_dropped local_aborted"
LNET_LOCAL_RESEND_STATUSES+=" local_no_route local_timeout"
LNET_LOCAL_NO_RESEND_STATUSES="local_error"
test_204() {
        reinit_dlc || return $?
        add_net "tcp" "${INTERFACES[0]}" || return $?

        lnet_health_pre || return $?

        local hstatus
        for hstatus in ${LNET_LOCAL_RESEND_STATUSES} \
                       ${LNET_LOCAL_NO_RESEND_STATUSES}; do
                echo "Simulate $hstatus"
                $LCTL net_drop_add -s *@tcp -d *@tcp -m GET -r 1 -e ${hstatus}
                do_lnetctl discover $($LCTL list_nids | head -n 1) &&
                        error "Should have failed"
                $LCTL net_drop_del -a
        done

        lnet_health_post

        check_no_resends || return $?
        check_no_local_health || return $?

        return 0
}
run_test 204 "Check no health or resends for single-rail local failures"

test_205() {
        local hstatus
        for hstatus in ${LNET_LOCAL_RESEND_STATUSES}; do
                reinit_dlc || return $?
                add_net "tcp" "${INTERFACES[0]}" || return $?
                add_net "tcp1" "${INTERFACES[0]}" || return $?

                echo "Simulate $hstatus"
                lnet_health_pre

                $LCTL net_drop_add -s *@tcp -d *@tcp -m GET -r 1 -e ${hstatus}
                $LCTL net_drop_add -s *@tcp1 -d *@tcp1 -m GET -r 1 -e ${hstatus}
                do_lnetctl discover $($LCTL list_nids | head -n 1) &&
                        error "Should have failed"
                $LCTL net_drop_del -a

                lnet_health_post

                check_resends || return $?
                check_local_health || return $?
        done

        for hstatus in ${LNET_LOCAL_NO_RESEND_STATUSES}; do
                reinit_dlc || return $?
                add_net "tcp" "${INTERFACES[0]}" || return $?
                add_net "tcp1" "${INTERFACES[0]}" || return $?

                echo "Simulate $hstatus"
                lnet_health_pre || return $?

                $LCTL net_drop_add -s *@tcp -d *@tcp -m GET -r 1 -e ${hstatus}
                $LCTL net_drop_add -s *@tcp1 -d *@tcp1 -m GET -r 1 -e ${hstatus}
                do_lnetctl discover $($LCTL list_nids | head -n 1) &&
                        error "Should have failed"
                $LCTL net_drop_del -a

                lnet_health_post

                check_no_resends || return $?
                check_local_health || return $?
        done

        return 0
}
run_test 205 "Check health and resends for multi-rail local failures"

# See lnet/lnet/lib-msg.c:lnet_health_check()
LNET_REMOTE_RESEND_STATUSES="remote_dropped"
LNET_REMOTE_NO_RESEND_STATUSES="remote_error remote_timeout"
test_206() {
        reinit_dlc || return $?
        add_net "tcp" "${INTERFACES[0]}" || return $?

        do_lnetctl discover $($LCTL list_nids | head -n 1) ||
                error "failed to discover myself"

        lnet_health_pre || return $?

        local hstatus
        for hstatus in ${LNET_REMOTE_RESEND_STATUSES} \
                       ${LNET_REMOTE_NO_RESEND_STATUSES}; do
                echo "Simulate $hstatus"
                $LCTL net_drop_add -s *@tcp -d *@tcp -m GET -r 1 -e ${hstatus}
                do_lnetctl discover $($LCTL list_nids | head -n 1) &&
                        error "Should have failed"
                $LCTL net_drop_del -a
        done

        lnet_health_post

        check_no_resends || return $?
        check_no_local_health || return $?
        check_no_remote_health || return $?

        return 0
}
run_test 206 "Check no health or resends for single-rail remote failures"

test_207() {
        local hstatus
        for hstatus in ${LNET_REMOTE_RESEND_STATUSES}; do
                reinit_dlc || return $?
                add_net "tcp" "${INTERFACES[0]}" || return $?
                add_net "tcp1" "${INTERFACES[0]}" || return $?

                do_lnetctl discover $($LCTL list_nids | head -n 1) ||
                        error "failed to discover myself"

                echo "Simulate $hstatus"
                lnet_health_pre || return $?
                $LCTL net_drop_add -s *@tcp -d *@tcp -m GET -r 1 -e ${hstatus}
                $LCTL net_drop_add -s *@tcp1 -d *@tcp1 -m GET -r 1 -e ${hstatus}
                do_lnetctl discover $($LCTL list_nids | head -n 1) &&
                        error "Should have failed"
                $LCTL net_drop_del -a

                lnet_health_post

                check_resends || return $?
                check_no_local_health || return $?
                check_remote_health || return $?
        done
        for hstatus in ${LNET_REMOTE_NO_RESEND_STATUSES}; do
                reinit_dlc || return $?
                add_net "tcp" "${INTERFACES[0]}" || return $?
                add_net "tcp1" "${INTERFACES[0]}" || return $?

                do_lnetctl discover $($LCTL list_nids | head -n 1) ||
                        error "failed to discover myself"

                echo "Simulate $hstatus"
                lnet_health_pre || return $?
                $LCTL net_drop_add -s *@tcp -d *@tcp -m GET -r 1 -e ${hstatus}
                $LCTL net_drop_add -s *@tcp1 -d *@tcp1 -m GET -r 1 -e ${hstatus}
                do_lnetctl discover $($LCTL list_nids | head -n 1) &&
                        error "Should have failed"
                $LCTL net_drop_del -a

                lnet_health_post

                check_no_resends || return $?
                check_no_local_health || return $?
                check_remote_health || return $?
        done

        return 0
}
run_test 207 "Check health and resends for multi-rail remote errors"

test_208_load_and_check_lnet() {
        local ip2nets="$1"
        local p_nid="$2"
        local s_nid="$3"
        local num_expected=1

        load_lnet "networks=\"\" ip2nets=\"${ip2nets_str}\""

        $LCTL net up ||
                error "Failed to load LNet with ip2nets \"${ip2nets_str}\""

        [[ -n $s_nid ]] &&
                num_expected=2

        declare -a nids
        nids=( $($LCTL list_nids) )

        [[ ${#nids[@]} -ne ${num_expected} ]] &&
                error "Expect ${num_expected} NIDs found ${#nids[@]}"

        [[ ${nids[0]} == ${p_nid} ]] ||
                error "Expect NID \"${p_nid}\" found \"${nids[0]}\""

        [[ -n $s_nid ]] && [[ ${nids[1]} != ${s_nid} ]] &&
                error "Expect second NID \"${s_nid}\" found \"${nids[1]}\""

        $LCTL net down &>/dev/null
        cleanup_lnet
}

test_208() {
        cleanup_netns || error "Failed to cleanup netns before test execution"
        cleanup_lnet || error "Failed to unload modules before test execution"
        setup_fakeif || error "Failed to add fake IF"

        have_interface "$FAKE_IF" ||
                error "Expect $FAKE_IF configured but not found"

        local if0_ip=$(ip --oneline addr show dev ${INTERFACES[0]} |
                       awk '/inet /{print $4}' |
                       sed 's:/.*::')
        if0_ip=($(echo "${if0_ip[@]}" | tr ' ' '\n' | uniq | tr '\n' ' '))
        local ip2nets_str="tcp(${INTERFACES[0]}) $if0_ip"

        echo "Configure single NID \"$ip2nets_str\""
        test_208_load_and_check_lnet "${ip2nets_str}" "${if0_ip}@tcp"

        ip2nets_str="tcp(${INTERFACES[0]}) $if0_ip; tcp1($FAKE_IF) $FAKE_IP"
        echo "Configure two NIDs; two NETs \"$ip2nets_str\""
        test_208_load_and_check_lnet "${ip2nets_str}" "${if0_ip}@tcp" \
                                     "${FAKE_IP}@tcp1"

        ip2nets_str="tcp(${INTERFACES[0]}) $if0_ip; tcp($FAKE_IF) $FAKE_IP"
        echo "Configure two NIDs; one NET \"$ip2nets_str\""
        test_208_load_and_check_lnet "${ip2nets_str}" "${if0_ip}@tcp" \
                                     "${FAKE_IP}@tcp"
        local addr1=( ${if0_ip//./ } )
        local addr2=( ${FAKE_IP//./ } )
        local range="[${addr1[0]},${addr2[0]}]"

        local i
        for i in $(seq 1 3); do
                range+=".[${addr1[$i]},${addr2[$i]}]"
        done
        ip2nets_str="tcp(${INTERFACES[0]},${FAKE_IF}) ${range}"

        echo "Configured two NIDs; one NET alt syntax \"$ip2nets_str\""
        test_208_load_and_check_lnet "${ip2nets_str}" "${if0_ip}@tcp" \
                                     "${FAKE_IP}@tcp"

        cleanup_fakeif

        echo "alt syntax with missing IF \"$ip2nets_str\""
        load_lnet "networks=\"\" ip2nets=\"${ip2nets_str}\""

        echo "$LCTL net up should fail"
        $LCTL net up &&
                error "LNet bringup should have failed"

        cleanup_lnet
}
run_test 208 "Test various kernel ip2nets configurations"

test_209() {
        reinit_dlc || return $?
        add_net "tcp" "${INTERFACES[0]}" || return $?

        do_lnetctl discover $($LCTL list_nids | head -n 1) ||
                error "failed to discover myself"

        echo "Simulate network_timeout w/SR config"
        lnet_health_pre

        $LCTL net_drop_add -s *@tcp -d *@tcp -m GET -r 1 -e network_timeout
        do_lnetctl discover $($LCTL list_nids | head -n 1) &&
                error "Should have failed"
        $LCTL net_drop_del -a

        lnet_health_post

        check_no_resends || return $?
        check_no_local_health || return $?
        check_no_remote_health || return $?

        reinit_dlc || return $?
        add_net "tcp" "${INTERFACES[0]}" || return $?
        add_net "tcp1" "${INTERFACES[0]}" || return $?

        do_lnetctl discover $($LCTL list_nids | head -n 1) ||
                error "failed to discover myself"

        echo "Simulate network_timeout w/MR config"
        lnet_health_pre

        $LCTL net_drop_add -s *@tcp -d *@tcp -m GET -r 1 -e network_timeout
        $LCTL net_drop_add -s *@tcp1 -d *@tcp1 -m GET -r 1 -e network_timeout
        do_lnetctl discover $($LCTL list_nids | head -n 1) &&
                error "Should have failed"
        $LCTL net_drop_del -a

        lnet_health_post

        check_no_resends || return $?
        check_local_health || return $?
        check_remote_health || return $?

        return 0
}
run_test 209 "Check health, but not resends, for network timeout"

check_nid_in_recovq() {
        local recovq=$($LNETCTL debug recovery $1)
        local expect="$2"
        local nids=$($LCTL list_nids | xargs echo)
        local found=false
        local nid=""

        echo "Check recovery queue"
        echo "$recovq"
        if [[ $(grep -c 'nid-'<<<$recovq) -ne $expect ]]; then
                error "Expect $expect NIDs found: \"$recovq\""
        fi

        [[ $expect -eq 0 ]] && return 0

        for nid in ${nids}; do
                grep -q "nid-0: $nid"<<<$recovq &&
                        found=true
        done

        if ! $found; then
                error "Didn't find local NIDs in recovery queue: \"$recovq\""
        fi

        return 0
}

# First enqueue happens at time 0.
# 2nd at 0 + 2^0 = 1
# 3rd at 1 + 2^1 = 3
# 4th at 3 + 2^2 = 7
# 5th at 7 + 2^3 = 15
# e.g. after 10 seconds we would expect to have seen the 4th enqueue,
# (3 pings sent, 4th about to happen) and the 5th enqueue is yet to
# happen
# If the recovery limit is 10 seconds, then when the 5th enqueue happens
# we expect the peer NI to have aged out, so it will not actually be
# queued.
check_ping_count() {
        local queue="$1"
        local expect="$2"

        echo "Check ping counts:"
        local ping_count
        if [[ $queue == "ni" ]]; then
                $LNETCTL net show -v 2 | egrep 'nid|health value|ping'
                ping_count=( $($LNETCTL net show -v 2 |
                                awk '/ping_count/{print $NF}') )
        elif [[ $queue == "peer_ni" ]]; then
                $LNETCTL peer show -v 2 | egrep 'nid|health value|ping'
                ping_count=( $($LNETCTL peer show -v 2 |
                                awk '/ping_count/{print $NF}') )
        else
                error "Unrecognized queue \"$queue\""
                return 1
        fi

        local count
        local found=false
        for count in ${ping_count[@]}; do
                if [[ $count -eq $expect ]]; then
                        if [[ $expect -ne 0 ]] && $found ; then
                                error "Found more than one interface matching \"$expect\" ping count"
                                return 1
                        else
                                echo "Expect ping count \"$expect\" found \"$count\""
                                found=true;
                        fi
                elif [[ $count -ne 0 ]]; then
                        error "Found interface with ping count \"$count\" but expect \"$expect\""
                        return 1
                fi
        done

        return 0
}

test_210() {
        reinit_dlc || return $?
        add_net "tcp" "${INTERFACES[0]}" || return $?
        add_net "tcp1" "${INTERFACES[0]}" || return $?

        local prim_nid=$($LCTL list_nids | head -n 1)

        do_lnetctl discover $prim_nid ||
                error "failed to discover myself"

        # Set recovery limit to 10 seconds.
        do_lnetctl set recovery_limit 10 ||
                error "failed to set recovery_limit"

        $LCTL set_param debug=+net
        # Use local_error so LNet doesn't attempt to resend the discovery ping
        $LCTL net_drop_add -s *@tcp -d *@tcp -m GET -r 1 -e local_error
        $LCTL net_drop_add -s *@tcp1 -d *@tcp1 -m GET -r 1 -e local_error
        do_lnetctl discover $($LCTL list_nids | head -n 1) &&
                error "Expected discovery to fail"

        sleep 5
        check_nid_in_recovq "-l" 1
        check_ping_count "ni" "2"

        sleep 5

        check_nid_in_recovq "-l" 1
        check_ping_count "ni" "3"

        $LCTL net_drop_del -a

        return 0
}
run_test 210 "Local NI recovery checks"

test_211() {
        reinit_dlc || return $?
        add_net "tcp" "${INTERFACES[0]}" || return $?
        add_net "tcp1" "${INTERFACES[0]}" || return $?

        local prim_nid=$($LCTL list_nids | head -n 1)

        do_lnetctl discover $prim_nid ||
                error "failed to discover myself"

        # Set recovery limit to 10 seconds.
        do_lnetctl set recovery_limit 10 ||
                error "failed to set recovery_limit"

        $LCTL net_drop_add -s *@tcp -d *@tcp -m GET -r 1 -e remote_error
        $LCTL net_drop_add -s *@tcp1 -d *@tcp1 -m GET -r 1 -e remote_error

        # Set health to 0 on one interface. This forces it onto the recovery
        # queue.
        $LNETCTL peer set --nid $prim_nid --health 0

        # After 5 seconds, we expect the peer NI to still be in recovery
        sleep 5
        check_nid_in_recovq "-p" 1
        check_ping_count "peer_ni" "2"

        # After 15 seconds, the peer NI should have been fully processed out of
        # the recovery queue. We'll allow a total of 17 seconds to account for
        # differences in sleeping for whole seconds vs. the more accurate time
        # keeping that is done in the recovery code.
        sleep 12
        check_nid_in_recovq "-p" 0
        check_ping_count "peer_ni" "4"

        $LCTL net_drop_del -a

        # Set health to force it back onto the recovery queue. Set to 500 means
        # in 5 seconds it should be back at maximum value. We'll wait a couple
        # more seconds than that to be safe.
        # NB: we reset the recovery limit to 0 (indefinite) so the peer NI is
        # eligible again
        do_lnetctl set recovery_limit 0 ||
                error "failed to set recovery_limit"

        $LNETCTL peer set --nid $prim_nid --health 500

        check_nid_in_recovq "-p" 1
        check_ping_count "peer_ni" "2"

        sleep 7

        check_nid_in_recovq "-p" 0
        check_ping_count "peer_ni" "0"

        return 0
}
run_test 211 "Remote NI recovery checks"

test_212() {
        local rnodes=$(remote_nodes_list)
        [[ -z $rnodes ]] && skip "Need at least 1 remote node"

        cleanup_lnet || error "Failed to cleanup before test execution"

        # Loading modules should configure LNet with the appropriate
        # test-framework configuration
        load_modules || error "Failed to load modules"

        local my_nid=$($LCTL list_nids | head -n 1)
        [[ -z $my_nid ]] &&
                error "Failed to get primary NID for local host $HOSTNAME"

        local rnode=$(awk '{print $1}' <<<$rnodes)
        local rnodenids=$(do_node $rnode $LCTL list_nids | xargs echo)
        local rloaded=false

        if [[ -z $rnodenids ]]; then
                do_rpc_nodes $rnode load_modules_local
                rloaded=true
                rnodenids=$(do_node $rnode $LCTL list_nids | xargs echo)
        fi

        local rnodepnid=$(awk '{print $1}' <<< $rnodenids)

        [[ -z $rnodepnid ]] &&
                error "Failed to get primary NID for remote host $rnode"

        log "Initial discovery"
        do_lnetctl discover --force $rnodepnid ||
                error "Failed to discover $rnodepnid"

        do_node $rnode "$LNETCTL discover --force $my_nid" ||
                error "$rnode failed to discover $my_nid"

        log "Fail local discover ping to set LNET_PEER_REDISCOVER flag"
        $LCTL net_drop_add -s "*@$NETTYPE" -d "*@$NETTYPE" -r 1 -e local_error
        do_lnetctl discover --force $rnodepnid &&
                error "Discovery should have failed"
        $LCTL net_drop_del -a

        local nid
        for nid in $rnodenids; do
                # We need GET (PING) delay just long enough so we can trigger
                # discovery on the remote peer
                $LCTL net_delay_add -s "*@$NETTYPE" -d $nid -r 1 -m GET -l 3
                $LCTL net_drop_add -s "*@$NETTYPE" -d $nid -r 1 -m GET -e local_error
                # We need PUT (PUSH) delay just long enough so we can process
                # the PING failure
                $LCTL net_delay_add -s "*@$NETTYPE" -d $nid -r 1 -m PUT -l 6
        done

        log "Force $HOSTNAME to discover $rnodepnid (in background)"
        # We want to get a PING sent that we know will eventually fail.
        # The delay rules we added will ensure the ping is not sent until
        # the PUSH is also in flight (see below), and the drop rule ensures that
        # when the PING is eventually sent it will error out
        do_lnetctl discover --force $rnodepnid &
        local pid1=$!

        # We want a discovery PUSH from rnode to put rnode back on our
        # discovery queue. This should cause us to try and send a PUSH to rnode
        # while the PING is still outstanding.
        log "Force $rnode to discover $my_nid"
        do_node $rnode $LNETCTL discover --force $my_nid

        # At this point we'll have both PING_SENT and PUSH_SENT set for the
        # rnode peer. Wait for the PING to error out which should terminate the
        # discovery process that we backgrounded.
        log "Wait for $pid1"
        wait $pid1
        log "Finished wait on $pid1"

        # The PING send failure clears the PING_SENT flag and puts the peer back
        # on the discovery queue. When discovery thread processes the peer it
        # will mistakenly clear the PUSH_SENT flag (and set PUSH_FAILED).
        # Discovery will then complete for this peer even though we have an
        # outstanding PUSH.
        # When PUSH is actually unlinked it will be forced back onto the
        # discovery queue, but we no longer have a ref on the peer. When
        # discovery completes again, we'll trip the ASSERT in
        # lnet_destroy_peer_locked()

        # Delete the delay rules to send the PUSH
        $LCTL net_delay_del -a
        # Delete the drop rules
        $LCTL net_drop_del -a

        unload_modules ||
                error "Failed to unload modules"
        if $rloaded; then
                do_rpc_nodes $rnode unload_modules_local ||
                        error "Failed to unload modules on $rnode"
        fi

        return 0
}
run_test 212 "Check discovery refcount loss bug (LU-14627)"

test_213() {
        cleanup_netns || error "Failed to cleanup netns before test execution"
        cleanup_lnet || error "Failed to unload modules before test execution"

        setup_fakeif || error "Failed to add fake IF"
        have_interface "$FAKE_IF" ||
                error "Expect $FAKE_IF configured but not found"

        reinit_dlc || return $?

        add_net "tcp" "${INTERFACES[0]}" || return $?
        add_net "tcp" "$FAKE_IF" || return $?

        local nid1=$(lctl list_nids | head -n 1)
        local nid2=$(lctl list_nids | tail --lines 1)

        [[ $(lctl which_nid $nid1 $nid2) == $nid1 ]] ||
                error "Expect nid1 \"$nid1\" to be preferred"

        [[ $(lctl which_nid $nid2 $nid1) == $nid2 ]] ||
                error "Expect nid2 \"$nid2\" to be preferred"

        return 0
}
run_test 213 "Check LNetDist calculation for multiple local NIDs"

function check_ni_status() {
        local nid="$1"
        local expect="$2"

        local status=$($LNETCTL net show |
                       grep -A 1 ${nid} |
                       awk '/status/{print $NF}')

        echo "NI ${nid} expect status \"${expect}\" found \"${status}\""
        if [[ $status != $expect ]]; then
                error "Error: Expect NI status \"$expect\" for NID \"$nid\" but found \"$status\""
        fi

        return 0
}

test_214() {
        have_interface "eth0" || skip "Need eth0 interface with ipv4 configured"

        cleanup_netns || error "Failed to cleanup netns before test execution"
        cleanup_lnet || error "Failed to unload modules before test execution"

        setup_fakeif || error "Failed to add fake IF"
        have_interface "$FAKE_IF" ||
                error "Expect $FAKE_IF configured but not found"

        reinit_dlc || return $?

        add_net "tcp" "eth0" || return $?
        add_net "tcp" "$FAKE_IF" || return $?

        local nid1=$(lctl list_nids | head -n 1)
        local nid2=$(lctl list_nids | tail --lines 1)

        check_ni_status "0@lo" up
        check_ni_status "$nid1" up
        check_ni_status "$nid2" up

        echo "Set $FAKE_IF down"
        echo "ip link set dev $FAKE_IF down"
        ip link set dev $FAKE_IF down
        check_ni_status "0@lo" up
        check_ni_status "$nid1" up
        check_ni_status "$nid2" down
}
run_test 214 "Check local NI status when link is downed"

test_230() {
        # LU-12815
        echo "Check valid values; Should succeed"
        local i
        local lnid
        local cmd
        for ((i = 4; i < 16; i+=1)); do
                reinit_dlc || return $?
                add_net "tcp" "${INTERFACES[0]}" || return $?
                do_lnetctl net set --all --conns-per-peer $i ||
                        error "should have succeeded $?"
                $LNETCTL net show -v 1 | grep -q "conns_per_peer: $i" ||
                        error "failed to set conns-per-peer to $i"
                lnid="$(lctl list_nids | head -n 1)"
                do_lnetctl ping "$lnid" ||
                        error "failed to ping myself"
                # "lctl --net tcp conn_list" prints the list of active
                # connections. Since we're pinging ourselves, there should be
                # 2 Control connections plus 2*conns_per_peer connections
                # created (one Bulk Input, one Bulk Output in each pair).
                # Here's the sample output for conns_per_peer set to 1:
                # 12345-1.1.1.1@tcp I[0]host01->host01:988 2626560/1061296 nonagle
                # 12345-1.1.1.1@tcp O[0]host01->host01:1022 2626560/1061488 nonagle
                # 12345-1.1.1.1@tcp C[0]host01->host01:988 2626560/1061296 nonagle
                # 12345-1.1.1.1@tcp C[0]host01->host01:1023 2626560/1061488 nonagle
                cmd="printf 'network tcp\nconn_list\n' | lctl | grep -c '$lnid'"

                # Expect 2+conns_per_peer*2 connections. Wait no longer
                # than 2 seconds.
                wait_update $HOSTNAME "$cmd" "$((2+i*2))" 2 ||
                        error "expected number of tcp connections $((2+i*2))"
        done

        reinit_dlc || return $?
        add_net "tcp" "${INTERFACES[0]}" || return $?
        echo "Set > 127; Should fail"
        do_lnetctl net set --all --conns-per-peer 128 &&
                error "should have failed $?"

        reinit_dlc || return $?
        add_net "tcp" "${INTERFACES[0]}" || return $?
        echo "Set < 0; Should be ignored"
        do_lnetctl net set --all --conns-per-peer -1 ||
                error "should have succeeded $?"
        $LNETCTL net show -v 1 | grep -q "conns_per_peer: 1" ||
                error "Did not stay at default"
}
run_test 230 "Test setting conns-per-peer"

test_300() {
        # LU-13274
        local header
        local out=$TMP/$tfile
        local prefix=/usr/include/linux/lnet

        # We use a hard coded prefix so that this test will not fail
        # when run in tree.
        CC=${CC:-cc}
        if ! which $CC > /dev/null 2>&1; then
                skip_env "$CC is not installed"
        fi

        cleanup_lnet || exit 1
        load_lnet

        local cc_args="-Wall -Werror -std=c99 -c -x c /dev/null -o $out"
        if ! [[ -d $prefix ]]; then
                # Assume we're running in tree and fixup the include path.
                prefix=$LUSTRE/../lnet/include/uapi/linux/lnet
                cc_args+=" -I $LUSTRE/../lnet/include/uapi"
        fi

        for header in $prefix/*.h; do
                if ! [[ -f "$header" ]]; then
                        continue
                fi

                echo "$CC $cc_args -include $header"
                $CC $cc_args -include $header ||
                        error "cannot compile '$header'"
        done
        rm -f $out
}
run_test 300 "packaged LNet UAPI headers can be compiled"

complete $SECONDS

cleanup_testsuite
exit_status