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test/nvmf: zero-copy test

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The test has two phases: first it runs a bdevperf with rw=verify to
check data consistency and then runs bdevperf in the background while
sending RPC requests causing the subsystem to be constanty
paused/resumed.

In-capsule data is set to 0 to make sure all IO requests are using
zero-copy.

Signed-off-by: Konrad Sztyber <konrad.sztyber@intel.com>
Change-Id: I1c1d7eb04714c8506307cb95b6cbc5988c8946a3
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/10797
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com>
This commit is contained in:
Konrad Sztyber 2021-12-10 15:50:55 +01:00 committed by Tomasz Zawadzki
parent 794d47d4c4
commit da2fb51627
2 changed files with 48 additions and 0 deletions
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1
test/nvmf/nvmf.sh
View File

@ -63,6 +63,7 @@ if ! check_ip_is_soft_roce $NVMF_FIRST_TARGET_IP; then
fi
run_test "nvmf_multipath" test/nvmf/target/multipath.sh "${TEST_ARGS[@]}"
run_test "nvmf_zcopy" test/nvmf/target/zcopy.sh "${TEST_ARGS[@]}"
timing_enter host

47
test/nvmf/target/zcopy.sh Executable file
View File

@ -0,0 +1,47 @@
#!/usr/bin/env bash
testdir=$(readlink -f $(dirname $0))
rootdir=$(readlink -f $testdir/../../..)
source $rootdir/test/common/autotest_common.sh
source $rootdir/test/nvmf/common.sh
rpc_py="$rootdir/scripts/rpc.py"
nvmftestinit
nvmfappstart
if [ "$TEST_TRANSPORT" != tcp ]; then
echo "Unsupported transport: $TEST_TRANSPORT"
exit 0
fi
# Enable zero-copy and set in-capsule data size to zero to make sure all requests are using
# zero-copy
$rpc_py nvmf_create_transport $NVMF_TRANSPORT_OPTS -c 0 --zcopy
$rpc_py nvmf_create_subsystem nqn.2016-06.io.spdk:cnode1 -a -s SPDK00000000000001 -m 10
$rpc_py nvmf_subsystem_add_listener nqn.2016-06.io.spdk:cnode1 -t $TEST_TRANSPORT \
-a $NVMF_FIRST_TARGET_IP -s $NVMF_PORT
$rpc_py bdev_malloc_create 32 4096 -b malloc0
$rpc_py nvmf_subsystem_add_ns nqn.2016-06.io.spdk:cnode1 malloc0 -n 1
# First send IO with verification
$rootdir/test/bdev/bdevperf/bdevperf --json <(gen_nvmf_target_json) \
-t 10 -q 128 -w verify -o 8192
# Then send IO in the background while pausing/resuming the subsystem
$rootdir/test/bdev/bdevperf/bdevperf --json <(gen_nvmf_target_json) \
-t 5 -q 128 -w randrw -M 50 -o 8192 &
perfpid=$!
while kill -0 $perfpid; do
# Add the same namespace again. It'll fail, but will also pause/resume the subsystem and
# the namespace forcing the IO requests to be queued/resubmitted.
$rpc_py nvmf_subsystem_add_ns nqn.2016-06.io.spdk:cnode1 malloc0 -n 1 &> /dev/null || :
done
wait $perfpid
trap - SIGINT SIGTERM EXIT
nvmftestfini