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selftests: rds: Add ROCE support to run.sh
This patch adds support for testing rds rdma over ROCE. A new -r flag is added to config.sh which enables the required kernel configs for rdma. We also add a -T flag to run.sh, which takes a transport option, tcp or rdma. The rdma option will check to ensure the proper configs have been enabled. The flag is then passed to test.py, which will run the test over the specified transport(s) Signed-off-by: Allison Henderson <achender@kernel.org> Link: https://patch.msgid.link/20260518012443.2629206-12-achender@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Allison Henderson
committed by
Jakub Kicinski
Jakub Kicinski
parent
9d4fc64132
commit
47f079e56e
@@ -1,18 +1,22 @@
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RDS self-tests
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==============
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These scripts provide a coverage test for RDS-TCP by creating two
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network namespaces and running rds packets between them. A loopback
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network is provisioned with optional probability of packet loss or
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corruption. A workload of 50000 hashes, each 64 characters in size,
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are passed over an RDS socket on this test network. A passing test means
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the RDS-TCP stack was able to recover properly. The provided config.sh
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can be used to compile the kernel with the necessary gcov options. The
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kernel may optionally be configured to omit the coverage report as well.
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These scripts provide a coverage test for RDS-TCP and RDS-RDMA (over
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RoCE/RXE) by setting up two endpoints and running RDS packets between
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them. The TCP path creates two network namespaces; the RDMA path uses
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an RXE (soft RoCE) device backed by a veth pair. A workload of 50000
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hashes, each 64 characters in size, is passed over an RDS socket on
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this test network with an optional probability of packet loss or
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corruption. A passing test means the RDS stack was able to recover
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properly. The provided config.sh can be used to compile the kernel
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with the necessary gcov options; pass -r to also enable the kernel
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configs required for the RDMA transport. The kernel may optionally be
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configured to omit the coverage report as well.
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USAGE:
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run.sh [-d logdir] [-l packet_loss] [-c packet_corruption]
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[-u packet_duplicate] [-t timeout]
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[-T tcp|rdma|tcp,rdma]
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OPTIONS:
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-d Log directory. If set, logs will be stored in the
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@@ -27,6 +31,10 @@ OPTIONS:
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-t Test timeout. Defaults to tools/testing/selftests/net/rds/settings
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-T Comma-separated list of transports to test. Accepts
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"tcp", "rdma", or "tcp,rdma". Defaults to "tcp". Use
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config.sh -r to enable required RDMA configs
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ENV VARIABLES:
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RDS_LOG_DIR Log directory. If set, logs will be stored in
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the given dir, or skipped if unset. Log dir
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@@ -48,6 +56,9 @@ EXAMPLE:
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# Create a suitable gcov enabled .config
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tools/testing/selftests/net/rds/config.sh -g
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# Optionally add RDMA configs (CONFIG_RDS_RDMA, CONFIG_RDMA_RXE)
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tools/testing/selftests/net/rds/config.sh -r
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# Alternatly create a gcov disabled .config
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tools/testing/selftests/net/rds/config.sh
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@@ -62,5 +73,5 @@ EXAMPLE:
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"export PYTHONPATH=tools/testing/selftests/net/; \
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export SUDO_USER=example_user; \
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export RDS_LOG_DIR=tools/testing/selftests/net/rds/rds_logs; \
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tools/testing/selftests/net/rds/run.sh"
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tools/testing/selftests/net/rds/run.sh -T tcp,rdma"
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@@ -10,7 +10,8 @@ CONF_FILE=""
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FLAGS=()
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GENERATE_GCOV_REPORT=0
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while getopts "gc:" opt; do
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ENABLE_RDMA=0
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while getopts "gc:r" opt; do
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case ${opt} in
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g)
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GENERATE_GCOV_REPORT=1
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@@ -18,8 +19,11 @@ while getopts "gc:" opt; do
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c)
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CONF_FILE=$OPTARG
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;;
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r)
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ENABLE_RDMA=1
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;;
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:)
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echo "USAGE: config.sh [-g] [-c config]"
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echo "USAGE: config.sh [-g] [-c config] [-r]"
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exit 1
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;;
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?)
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@@ -58,3 +62,10 @@ scripts/config "${FLAGS[@]}" --enable CONFIG_VETH
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# simulate packet loss
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scripts/config "${FLAGS[@]}" --enable CONFIG_NET_SCH_NETEM
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if [ "$ENABLE_RDMA" -eq 1 ]; then
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# enable RDS over InfiniBand / RDMA (rds_rdma test)
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scripts/config "${FLAGS[@]}" --enable CONFIG_INFINIBAND
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scripts/config "${FLAGS[@]}" --enable CONFIG_INFINIBAND_ADDR_TRANS
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scripts/config "${FLAGS[@]}" --enable CONFIG_RDMA_RXE
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scripts/config "${FLAGS[@]}" --enable CONFIG_RDS_RDMA
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fi
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@@ -101,6 +101,16 @@ check_conf_enabled() {
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exit 4
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fi
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}
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check_rdma_conf_enabled() {
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if ! grep -x "$1=y" "$kconfig" > /dev/null 2>&1; then
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echo "selftests: [SKIP] rdma transport requires $1 enabled"
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echo "To enable, run " \
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"tools/testing/selftests/net/rds/config.sh -r and rebuild"
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exit 4
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fi
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}
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check_conf_disabled() {
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if grep -x "$1=y" "$kconfig" > /dev/null 2>&1; then
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echo "selftests: [SKIP] This test requires $1 disabled"
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@@ -117,6 +127,28 @@ check_conf() {
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check_conf_disabled CONFIG_MODULES
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}
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# Check kernel config and host environment for RDS-RDMA support.
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# Exits with SKIP (4) if the user requested rdma but prerequisites
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# are not met.
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check_rdma_conf()
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{
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case "$TRANSPORT" in
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*rdma*) ;;
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*) return ;;
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esac
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# Kconfig will enforce CONFIG_INFINIBAND_* as dependencies
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# of CONFIG_RDMA_RXE
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check_rdma_conf_enabled CONFIG_RDMA_RXE
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check_rdma_conf_enabled CONFIG_RDS_RDMA
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if ! which rdma > /dev/null 2>&1; then
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echo "selftests: [SKIP] rdma transport requires the 'rdma'" \
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" tool (iproute2)"
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exit 4
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fi
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}
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check_env()
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{
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if ! test -d "$obj_dir"; then
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@@ -153,8 +185,10 @@ check_env()
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LOG_DIR="${RDS_LOG_DIR:-}"
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TIMEOUT=$timeout
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GENERATE_GCOV_REPORT=1
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TRANSPORT=tcp
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FLAGS=()
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while getopts "d:l:c:u:t:" opt; do
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while getopts "d:l:c:u:t:T:" opt; do
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case ${opt} in
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d)
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LOG_DIR=${OPTARG}
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@@ -171,9 +205,12 @@ while getopts "d:l:c:u:t:" opt; do
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u)
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FLAGS+=("-u" "${OPTARG}")
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;;
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T)
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TRANSPORT=${OPTARG}
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;;
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:)
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echo "USAGE: run.sh [-d logdir] [-l packet_loss] [-c packet_corruption]" \
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"[-u packet_duplicate] [-t timeout]"
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"[-u packet_duplicate] [-t timeout] [-T tcp|rdma|tcp,rdma]"
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exit 1
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;;
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?)
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@@ -183,9 +220,21 @@ while getopts "d:l:c:u:t:" opt; do
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esac
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done
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# Validate transport tokens
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IFS=',' read -ra transports <<< "$TRANSPORT"
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for t in "${transports[@]}"; do
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if [ "$t" != "tcp" ] && [ "$t" != "rdma" ]; then
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echo "run.sh: unknown transport '$t' (expected tcp or rdma)"
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exit 1
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fi
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done
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FLAGS+=("--transport" "${TRANSPORT}")
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check_env
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check_conf
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check_gcov_conf
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check_rdma_conf
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TRACE_CMD=()
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if [[ -n "$LOG_DIR" ]]; then
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