diff options
Diffstat (limited to 'tools/testing/selftests/rdma')
| -rw-r--r-- | tools/testing/selftests/rdma/Makefile | 9 | ||||
| -rw-r--r-- | tools/testing/selftests/rdma/config | 5 | ||||
| -rwxr-xr-x | tools/testing/selftests/rdma/rxe_ipv6.sh | 65 | ||||
| -rwxr-xr-x | tools/testing/selftests/rdma/rxe_netns_names.sh | 334 | ||||
| -rwxr-xr-x | tools/testing/selftests/rdma/rxe_rping_between_netns.sh | 92 | ||||
| -rwxr-xr-x | tools/testing/selftests/rdma/rxe_sent_rcvd_bytes.sh | 75 | ||||
| -rwxr-xr-x | tools/testing/selftests/rdma/rxe_socket_with_netns.sh | 82 | ||||
| -rwxr-xr-x | tools/testing/selftests/rdma/rxe_test_NETDEV_UNREGISTER.sh | 65 |
8 files changed, 727 insertions, 0 deletions
diff --git a/tools/testing/selftests/rdma/Makefile b/tools/testing/selftests/rdma/Makefile new file mode 100644 index 000000000000..a91c14c45006 --- /dev/null +++ b/tools/testing/selftests/rdma/Makefile @@ -0,0 +1,9 @@ +# SPDX-License-Identifier: GPL-2.0 +TEST_PROGS := rxe_rping_between_netns.sh \ + rxe_ipv6.sh \ + rxe_socket_with_netns.sh \ + rxe_test_NETDEV_UNREGISTER.sh \ + rxe_sent_rcvd_bytes.sh \ + rxe_netns_names.sh + +include ../lib.mk diff --git a/tools/testing/selftests/rdma/config b/tools/testing/selftests/rdma/config new file mode 100644 index 000000000000..e1ff54ec0f57 --- /dev/null +++ b/tools/testing/selftests/rdma/config @@ -0,0 +1,5 @@ +CONFIG_TUN +CONFIG_VETH +CONFIG_DUMMY +CONFIG_NET_NS +CONFIG_RDMA_RXE diff --git a/tools/testing/selftests/rdma/rxe_ipv6.sh b/tools/testing/selftests/rdma/rxe_ipv6.sh new file mode 100755 index 000000000000..32dad687a044 --- /dev/null +++ b/tools/testing/selftests/rdma/rxe_ipv6.sh @@ -0,0 +1,65 @@ +#!/bin/bash + +# Configuration +NS_NAME="net6" +VETH_HOST="veth0" +VETH_NS="veth1" +RXE_NAME="rxe6" +PORT=4791 +IP6_ADDR="2001:db8::1/64" + +source "$(dirname "$0")/../kselftest/ktap_helpers.sh" + +exec > /dev/null + +# Cleanup function to run on exit (even on failure) +cleanup() { + ip netns del "$NS_NAME" 2>/dev/null + modprobe -r rdma_rxe 2>/dev/null + echo "Done." +} +trap cleanup EXIT + +# 1. Prerequisites check +for mod in tun veth rdma_rxe; do + if ! modinfo "$mod" >/dev/null 2>&1; then + echo "SKIP: Kernel module '$mod' not found." >&2 + exit $KSFT_SKIP + fi +done + +modprobe rdma_rxe + +# 2. Setup Namespace and Networking +echo "Setting up IPv6 network namespace..." +ip netns add "$NS_NAME" +ip link add "$VETH_HOST" type veth peer name "$VETH_NS" +ip link set "$VETH_NS" netns "$NS_NAME" +ip netns exec "$NS_NAME" ip addr add "$IP6_ADDR" dev "$VETH_NS" +ip netns exec "$NS_NAME" ip link set "$VETH_NS" up +ip link set "$VETH_HOST" up + +# 3. Add RDMA Link +echo "Adding RDMA RXE link..." +if ! ip netns exec "$NS_NAME" rdma link add "$RXE_NAME" type rxe netdev "$VETH_NS"; then + echo "Error: Failed to create RXE link." + exit 1 +fi + +# 4. Verification: Port should be listening +# Using -H to skip headers and -q for quiet exit codes +if ! ip netns exec "$NS_NAME" ss -Hul6n sport = :$PORT | grep -q ":$PORT"; then + echo "Error: UDP port $PORT is NOT listening after link creation." + exit 1 +fi +echo "Verified: Port $PORT is active." + +# 5. Removal and Verification +echo "Deleting RDMA link..." +ip netns exec "$NS_NAME" rdma link del "$RXE_NAME" + +if ip netns exec "$NS_NAME" ss -Hul6n sport = :$PORT | grep -q ":$PORT"; then + echo "Error: UDP port $PORT still active after link deletion." + exit 1 +fi +echo "Verified: Port $PORT closed successfully." diff --git a/tools/testing/selftests/rdma/rxe_netns_names.sh b/tools/testing/selftests/rdma/rxe_netns_names.sh new file mode 100755 index 000000000000..f40118407f4c --- /dev/null +++ b/tools/testing/selftests/rdma/rxe_netns_names.sh @@ -0,0 +1,334 @@ +#!/bin/bash +# SPDX-License-Identifier: GPL-2.0 +# +# Exercise RDMA device name handling across network namespaces. + +source "$(dirname "$0")/../kselftest/ktap_helpers.sh" + +NAME_PREFIX="rxe_netns_names_$$" +NETDEV_PREFIX="rxn$$" +NS1="${NAME_PREFIX}ns1" +NS2="${NAME_PREFIX}ns2" +RXE_A="${NAME_PREFIX}rxe_a" +RXE_B="${NAME_PREFIX}rxe_b" +RXE_SAME="${NAME_PREFIX}rxe_same" +RXE_NEW="${NAME_PREFIX}rxe_new" +DUMMY_A="${NETDEV_PREFIX}a" +DUMMY_B="${NETDEV_PREFIX}b" +OLD_MODE="" +MODE_CHANGED=0 +MODS=("dummy" "rdma_rxe") +TEST_SAME_NAMES="same RDMA device name can exist in two net namespaces" +TEST_MOVE_CONFLICT="move without rename fails on destination name conflict" +TEST_MOVE_RENAME="move then rename succeeds" +TEST_COMBINED_MOVE_RENAME="move with requested destination name succeeds" +TEST_SAME_NETNS_DUP_RENAME="same-netns rename rejects duplicate name" +TEST_TEARDOWN_RETURN="netns delete returns device to init_net and renames on conflict" + +ksft_skip() +{ + ktap_skip_all "$*" + exit "$KSFT_SKIP" +} + +fail() +{ + ktap_exit_fail_msg "$*" +} + +need_cmd() +{ + command -v "$1" >/dev/null 2>&1 || ksft_skip "missing command: $1" +} + +rdma_ns() +{ + local ns=$1 + + shift + ip netns exec "$ns" rdma "$@" +} + +rdma_dev_exists() +{ + local ns=$1 + local dev=$2 + + if [ -n "$ns" ]; then + rdma_ns "$ns" dev show "$dev" >/dev/null 2>&1 + else + rdma dev show "$dev" >/dev/null 2>&1 + fi +} + +add_dummy() +{ + local netdev=$1 + + ip link add "$netdev" type dummy || return 1 + ip link set "$netdev" up || return 1 +} + +add_rxe() +{ + local dev=$1 + local netdev=$2 + + rdma link add "$dev" type rxe netdev "$netdev" +} + +rdma_dev_on_netdev() +{ + local netdev=$1 + + rdma link show 2>/dev/null | awk -v want="$netdev" ' + { + for (i = 1; i < NF; i++) + if ($i == "netdev" && $(i + 1) == want) { + dev = $2 + sub(/\/.*/, "", dev) + print dev + exit + } + }' +} + +wait_rdma_dev_on_netdev() +{ + local netdev=$1 + local dev + local i + + for i in $(seq 1 50); do + dev=$(rdma_dev_on_netdev "$netdev") + if [ -n "$dev" ]; then + echo "$dev" + return 0 + fi + sleep 0.1 + done + + return 1 +} + +# ip link del returns after NETDEV_UNREGISTER, but rxe tears the RDMA device +# down asynchronously via ib_unregister_device_queued(). Wait until our names +# are gone. +wait_rdma_devs_gone() +{ + local i name ns + local names=("$RXE_A" "$RXE_B" "$RXE_SAME" "$RXE_NEW") + + for i in $(seq 1 50); do + local found=0 + + for name in "${names[@]}"; do + if rdma_dev_exists "" "$name"; then + found=1 + break + fi + for ns in "$NS1" "$NS2"; do + ip netns exec "$ns" true 2>/dev/null || continue + if rdma_dev_exists "$ns" "$name"; then + found=1 + break 2 + fi + done + done + + [ "$found" -eq 0 ] && return 0 + sleep 0.1 + done + + return 1 +} + +setup_devs() +{ + cleanup_devs || return 1 + + add_dummy "$DUMMY_A" || return 1 + add_dummy "$DUMMY_B" || return 1 + + add_rxe "$RXE_A" "$DUMMY_A" || return 1 + add_rxe "$RXE_B" "$DUMMY_B" || return 1 +} + +cleanup_devs() +{ + ip link del "$DUMMY_A" 2>/dev/null + ip link del "$DUMMY_B" 2>/dev/null + wait_rdma_devs_gone +} + +setup() +{ + OLD_MODE=$(rdma system show 2>/dev/null | + sed -n 's/.*netns \([^ ]*\).*/\1/p') + [ -n "$OLD_MODE" ] || ksft_skip "failed to read RDMA netns mode" + + rdma system set netns exclusive >/dev/null 2>&1 || + ksft_skip "rdma netns exclusive mode is not supported" + MODE_CHANGED=1 + + ip netns add "$NS1" || return 1 + ip netns add "$NS2" || return 1 +} + +# ip netns del returns before rdma_dev_exit_net() removes the net from +# rdma_nets. rdma_compatdev_set() returns -EBUSY until that completes, so +# retry the mode restore instead of leaving the system in exclusive mode. +restore_netns_mode() +{ + local i + + [ "$MODE_CHANGED" -eq 1 ] || return 0 + + for i in $(seq 1 50); do + if rdma system set netns "$OLD_MODE" >/dev/null 2>&1; then + MODE_CHANGED=0 + return 0 + fi + sleep 0.1 + done + + echo "warning: failed to restore RDMA netns mode to $OLD_MODE" >&2 + return 1 +} + +cleanup() +{ + cleanup_devs + + ip netns del "$NS1" 2>/dev/null + ip netns del "$NS2" 2>/dev/null + + restore_netns_mode + + for m in "${MODS[@]}"; do + modprobe -r "$m" 2>/dev/null + done +} + +rdma_supports_combined_move_rename() +{ + rdma dev help 2>&1 | grep -Eq 'netns .*name|name .*netns' +} + +[ "$(id -u)" -eq 0 ] || ksft_skip "must be run as root" +need_cmd ip +need_cmd rdma +need_cmd modprobe + +trap cleanup EXIT + +for m in "${MODS[@]}"; do + modinfo "$m" >/dev/null 2>&1 || ksft_skip "module $m not found" + modprobe "$m" || fail "failed to load $m" +done + +setup || fail "failed to create net namespaces" + +ktap_print_header +ktap_set_plan 6 + +if setup_devs && + rdma dev set "$RXE_A" netns "$NS1" && + rdma_ns "$NS1" dev set "$RXE_A" name "$RXE_SAME" && + rdma dev set "$RXE_B" netns "$NS2" && + rdma_ns "$NS2" dev set "$RXE_B" name "$RXE_SAME" && + rdma_dev_exists "$NS1" "$RXE_SAME" && + rdma_dev_exists "$NS2" "$RXE_SAME"; then + ktap_test_pass "$TEST_SAME_NAMES" +else + ktap_test_fail "$TEST_SAME_NAMES" +fi +cleanup_devs + +if ! setup_devs || + ! rdma dev set "$RXE_A" netns "$NS1" || + ! rdma_ns "$NS1" dev set "$RXE_A" name "$RXE_SAME" || + ! rdma dev set "$RXE_B" netns "$NS2" || + ! rdma_ns "$NS2" dev set "$RXE_B" name "$RXE_SAME"; then + ktap_test_fail "$TEST_MOVE_CONFLICT" +elif rdma_ns "$NS1" dev set "$RXE_SAME" netns "$NS2" >/dev/null 2>&1; then + ktap_test_fail "$TEST_MOVE_CONFLICT" +elif rdma_dev_exists "$NS1" "$RXE_SAME" && + rdma_dev_exists "$NS2" "$RXE_SAME"; then + ktap_test_pass "$TEST_MOVE_CONFLICT" +else + ktap_test_fail "$TEST_MOVE_CONFLICT" +fi +cleanup_devs + +if ! setup_devs; then + ktap_test_fail "$TEST_MOVE_RENAME" +elif rdma dev set "$RXE_A" netns "$NS2" && + rdma_ns "$NS2" dev set "$RXE_A" name "$RXE_NEW"; then + if rdma_dev_exists "$NS2" "$RXE_NEW" && + ! rdma_dev_exists "" "$RXE_A"; then + ktap_test_pass "$TEST_MOVE_RENAME" + else + ktap_test_fail "$TEST_MOVE_RENAME" + fi +else + ktap_test_fail "$TEST_MOVE_RENAME" +fi +cleanup_devs + +if ! rdma_supports_combined_move_rename; then + ktap_test_skip "$TEST_COMBINED_MOVE_RENAME" +elif ! setup_devs; then + ktap_test_fail "$TEST_COMBINED_MOVE_RENAME" +elif rdma dev set "$RXE_A" netns "$NS2" name "$RXE_NEW"; then + if rdma_dev_exists "$NS2" "$RXE_NEW" && + ! rdma_dev_exists "" "$RXE_A"; then + ktap_test_pass "$TEST_COMBINED_MOVE_RENAME" + else + ktap_test_fail "$TEST_COMBINED_MOVE_RENAME" + fi +else + ktap_test_fail "$TEST_COMBINED_MOVE_RENAME" +fi +cleanup_devs + +if ! setup_devs; then + ktap_test_fail "$TEST_SAME_NETNS_DUP_RENAME" +elif rdma dev set "$RXE_A" name "$RXE_SAME" && + rdma dev set "$RXE_B" name "$RXE_NEW"; then + if rdma dev set "$RXE_SAME" name "$RXE_NEW" >/dev/null 2>&1; then + ktap_test_fail "$TEST_SAME_NETNS_DUP_RENAME" + elif rdma_dev_exists "" "$RXE_SAME" && + rdma_dev_exists "" "$RXE_NEW"; then + ktap_test_pass "$TEST_SAME_NETNS_DUP_RENAME" + else + ktap_test_fail "$TEST_SAME_NETNS_DUP_RENAME" + fi +else + ktap_test_fail "$TEST_SAME_NETNS_DUP_RENAME" +fi +cleanup_devs + +if ! setup_devs; then + ktap_test_fail "$TEST_TEARDOWN_RETURN" +elif ! rdma dev set "$RXE_A" name "$RXE_SAME" || + ! rdma dev set "$RXE_B" netns "$NS2" || + ! rdma_ns "$NS2" dev set "$RXE_B" name "$RXE_SAME" || + ! rdma_dev_exists "$NS2" "$RXE_SAME"; then + ktap_test_fail "$TEST_TEARDOWN_RETURN" +else + ip netns del "$NS2" + returned=$(wait_rdma_dev_on_netdev "$DUMMY_B") + ktap_print_msg "device returned to init_net as '${returned:-<missing>}'" + if rdma_dev_exists "" "$RXE_SAME" && + [ -n "$returned" ] && + [ "$returned" != "$RXE_SAME" ] && + [ "${returned#ibdev}" != "$returned" ]; then + ktap_test_pass "$TEST_TEARDOWN_RETURN" + else + ktap_test_fail "$TEST_TEARDOWN_RETURN" + fi +fi +cleanup_devs + +ktap_finished diff --git a/tools/testing/selftests/rdma/rxe_rping_between_netns.sh b/tools/testing/selftests/rdma/rxe_rping_between_netns.sh new file mode 100755 index 000000000000..e7554fbb8951 --- /dev/null +++ b/tools/testing/selftests/rdma/rxe_rping_between_netns.sh @@ -0,0 +1,92 @@ +#!/bin/bash + +# Configuration +NS="test1" +VETH_A="veth-a" +VETH_B="veth-b" +IP_A="1.1.1.1" +IP_B="1.1.1.2" +PORT=4791 + +source "$(dirname "$0")/../kselftest/ktap_helpers.sh" + +exec > /dev/null + +# --- Cleanup Routine --- +cleanup() { + echo "Cleaning up resources..." + rdma link del rxe1 2>/dev/null + ip netns exec "$NS" rdma link del rxe0 2>/dev/null + ip link delete "$VETH_B" 2>/dev/null + ip netns del "$NS" 2>/dev/null + modprobe -r rdma_rxe 2>/dev/null +} +trap cleanup EXIT + +# --- Prerequisite Checks --- +if [[ $EUID -ne 0 ]]; then + echo "This script must be run as root" + exit 1 +fi + +if ! modinfo rdma_rxe >/dev/null 2>&1; then + echo "SKIP: Kernel module 'rdma_rxe' not found." >&2 + exit $KSFT_SKIP +fi + +modprobe rdma_rxe || { echo "Failed to load rdma_rxe"; exit 1; } + +# --- Setup Network Topology --- +echo "Setting up network namespace and veth pair..." +ip netns add "$NS" +ip link add "$VETH_A" type veth peer name "$VETH_B" +ip link set "$VETH_A" netns "$NS" + +# Configure Namespace side (test1) +ip netns exec "$NS" ip addr add "$IP_A/24" dev "$VETH_A" +ip netns exec "$NS" ip link set "$VETH_A" up +ip netns exec "$NS" ip link set lo up + +# Configure Host side +ip addr add "$IP_B/24" dev "$VETH_B" +ip link set "$VETH_B" up + +# --- RXE Link Creation --- +echo "Creating RDMA links..." +ip netns exec "$NS" rdma link add rxe0 type rxe netdev "$VETH_A" +rdma link add rxe1 type rxe netdev "$VETH_B" + +# Verify UDP 4791 is listening +check_port() { + local target=$1 # "host" or "ns" + if [ "$target" == "ns" ]; then + ip netns exec "$NS" ss -Huln sport == :$PORT | grep -q ":$PORT" + else + ss -Huln sport == :$PORT | grep -q ":$PORT" + fi +} + +check_port "ns" || { echo "Error: RXE port not listening in namespace"; exit 1; } +check_port "host" || { echo "Error: RXE port not listening on host"; exit 1; } + +# --- Connectivity Test --- +echo "Testing connectivity with rping..." +ping -c 2 -W 1 "$IP_A" > /dev/null || { echo "Ping failed"; exit 1; } + +# Start rping server in background +ip netns exec "$NS" rping -s -a "$IP_A" -v > /dev/null 2>&1 & +RPING_PID=$! +sleep 1 # Allow server to bind + +# Run rping client +rping -c -a "$IP_A" -d -v -C 3 +RESULT=$? + +kill $RPING_PID 2>/dev/null + +if [ $RESULT -eq 0 ]; then + echo "SUCCESS: RDMA traffic verified." +else + echo "FAILURE: rping failed." + exit 1 +fi diff --git a/tools/testing/selftests/rdma/rxe_sent_rcvd_bytes.sh b/tools/testing/selftests/rdma/rxe_sent_rcvd_bytes.sh new file mode 100755 index 000000000000..0e4fbfeebd22 --- /dev/null +++ b/tools/testing/selftests/rdma/rxe_sent_rcvd_bytes.sh @@ -0,0 +1,75 @@ +#!/bin/bash + +# Configuration +PORT=4791 +MODS=("tun" "rdma_rxe") + +exec > /dev/null + +# --- Helper: Cleanup Routine --- +cleanup() { + echo "Cleaning up resources..." + rdma link del rxe0 2>/dev/null + ip link del tun0 2>/dev/null + for m in "${MODS[@]}"; do modprobe -r "$m" 2>/dev/null; done +} + +# Ensure cleanup runs on script exit or interrupt +trap cleanup EXIT + +# --- Phase 1: Environment Check --- +if [[ $EUID -ne 0 ]]; then + echo "Error: This script must be run as root." + exit 1 +fi + +for m in "${MODS[@]}"; do + modprobe "$m" || { echo "Error: Failed to load $m"; exit 1; } +done + +# --- Phase 2: Create Interfaces & RXE Links --- +echo "Creating tun0 (1.1.1.1) and rxe0..." +ip tuntap add mode tun tun0 +ip addr add 1.1.1.1/24 dev tun0 +ip link set tun0 up +rdma link add rxe0 type rxe netdev tun0 + +# Verify port 4791 is listening +if ! ss -Huln sport = :$PORT | grep -q ":$PORT"; then + echo "Error: UDP port $PORT not found after rxe0 creation" + exit 1 +fi + +orig_s=`cat /sys/class/infiniband/rxe0/ports/1/counters/port_xmit_data` +orig_r=`cat /sys/class/infiniband/rxe0/ports/1/counters/port_rcv_data` + +rping -s -a 1.1.1.1 -C 3 -v & +sleep 1 +rping -c -a 1.1.1.1 -C 3 -d -v + +new_s=`cat /sys/class/infiniband/rxe0/ports/1/counters/port_xmit_data` +new_r=`cat /sys/class/infiniband/rxe0/ports/1/counters/port_rcv_data` + +echo sent $new_s $orig_s +echo rcvd $new_r $orig_r + +result0=$((new_s - orig_s)) +result1=$((new_r - orig_r)) + +if [ $result0 != $result1 ]; then + echo "Error: sent and rcvd bytes different" + echo $result0 + echo $result1 + exit 1 +fi + +echo "Deleting rxe0..." +rdma link del rxe0 + +# Port should now be gone +if ss -Huln sport = :$PORT | grep -q ":$PORT"; then + echo "Error: UDP port $PORT still exists after all links deleted" + exit 1 +fi + +echo "Test passed successfully." diff --git a/tools/testing/selftests/rdma/rxe_socket_with_netns.sh b/tools/testing/selftests/rdma/rxe_socket_with_netns.sh new file mode 100755 index 000000000000..9478657c02c1 --- /dev/null +++ b/tools/testing/selftests/rdma/rxe_socket_with_netns.sh @@ -0,0 +1,82 @@ +#!/bin/bash + +# Configuration +PORT=4791 +MODS=("tun" "rdma_rxe") + +source "$(dirname "$0")/../kselftest/ktap_helpers.sh" + +exec > /dev/null + +# --- Helper: Cleanup Routine --- +cleanup() { + echo "Cleaning up resources..." + rdma link del rxe1 2>/dev/null + rdma link del rxe0 2>/dev/null + ip link del tun0 2>/dev/null + ip link del tun1 2>/dev/null + for m in "${MODS[@]}"; do modprobe -r "$m" 2>/dev/null; done +} + +# Ensure cleanup runs on script exit or interrupt +trap cleanup EXIT + +# --- Phase 1: Environment Check --- +if [[ $EUID -ne 0 ]]; then + echo "Error: This script must be run as root." + exit 1 +fi + +for m in "${MODS[@]}"; do + if ! modinfo "$m" >/dev/null 2>&1; then + echo "SKIP: Kernel module '$m' not found." >&2 + exit $KSFT_SKIP + fi + modprobe "$m" || { echo "Error: Failed to load $m"; exit 1; } +done + +# --- Phase 2: Create Interfaces & RXE Links --- +echo "Creating tun0 (1.1.1.1) and rxe0..." +ip tuntap add mode tun tun0 +ip addr add 1.1.1.1/24 dev tun0 +ip link set tun0 up +rdma link add rxe0 type rxe netdev tun0 + +# Verify port 4791 is listening +if ! ss -Huln sport = :$PORT | grep -q ":$PORT"; then + echo "Error: UDP port $PORT not found after rxe0 creation" + exit 1 +fi + +echo "Creating tun1 (2.2.2.2) and rxe1..." +ip tuntap add mode tun tun1 +ip addr add 2.2.2.2/24 dev tun1 +ip link set tun1 up +rdma link add rxe1 type rxe netdev tun1 + +# Verify port 4791 is still listening +if ! ss -Huln sport = :$PORT | grep -q ":$PORT"; then + echo "Error: UDP port $PORT missing after rxe1 creation" + exit 1 +fi + +# --- Phase 3: Targeted Deletion --- +echo "Deleting rxe1..." +rdma link del rxe1 + +# Port should still be active because rxe0 is still alive +if ! ss -Huln sport = :$PORT | grep -q ":$PORT"; then + echo "Error: UDP port $PORT closed prematurely" + exit 1 +fi + +echo "Deleting rxe0..." +rdma link del rxe0 + +# Port should now be gone +if ss -Huln sport = :$PORT | grep -q ":$PORT"; then + echo "Error: UDP port $PORT still exists after all links deleted" + exit 1 +fi + +echo "Test passed successfully." diff --git a/tools/testing/selftests/rdma/rxe_test_NETDEV_UNREGISTER.sh b/tools/testing/selftests/rdma/rxe_test_NETDEV_UNREGISTER.sh new file mode 100755 index 000000000000..8c18cea7535c --- /dev/null +++ b/tools/testing/selftests/rdma/rxe_test_NETDEV_UNREGISTER.sh @@ -0,0 +1,65 @@ +#!/bin/bash + +# Configuration +DEV_NAME="tun0" +RXE_NAME="rxe0" +RDMA_PORT=4791 + +source "$(dirname "$0")/../kselftest/ktap_helpers.sh" + +exec > /dev/null + +# --- Cleanup Routine --- +# Ensures environment is clean even if the script hits an error +cleanup() { + echo "Performing cleanup..." + rdma link del $RXE_NAME 2>/dev/null + ip link del $DEV_NAME 2>/dev/null + modprobe -r rdma_rxe 2>/dev/null +} +trap cleanup EXIT + +# 1. Dependency Check +if ! modinfo rdma_rxe >/dev/null 2>&1; then + echo "SKIP: rdma_rxe module not found." >&2 + exit $KSFT_SKIP +fi + +modprobe rdma_rxe + +# 2. Setup TUN Device +echo "Creating $DEV_NAME..." +ip tuntap add mode tun "$DEV_NAME" +ip addr add 1.1.1.1/24 dev "$DEV_NAME" +ip link set "$DEV_NAME" up + +# 3. Attach RXE Link +echo "Attaching RXE link $RXE_NAME to $DEV_NAME..." +rdma link add "$RXE_NAME" type rxe netdev "$DEV_NAME" + +# 4. Verification: Port Check +# Use -H (no header) and -q (quiet) for cleaner scripting logic +if ! ss -Huln sport == :$RDMA_PORT | grep -q ":$RDMA_PORT"; then + echo "Error: UDP port $RDMA_PORT is not listening." + exit 1 +fi +echo "Verified: RXE is listening on UDP $RDMA_PORT." + +# 5. Trigger NETDEV_UNREGISTER +# We delete the underlying device without deleting the RDMA link first. +echo "Triggering NETDEV_UNREGISTER by deleting $DEV_NAME..." +ip link del "$DEV_NAME" + +# 6. Final Verification +# The RXE link and the UDP port should be automatically cleaned up by the kernel. +if rdma link show "$RXE_NAME" 2>/dev/null; then + echo "Error: $RXE_NAME still exists after netdev removal." + exit 1 +fi + +if ss -Huln sport == :$RDMA_PORT | grep -q ":$RDMA_PORT"; then + echo "Error: UDP port $RDMA_PORT still listening after netdev removal." + exit 1 +fi + +echo "Success: NETDEV_UNREGISTER handled correctly." |