From 766b1f62d935a2e34f4ee67399bee78517f8ad16 Mon Sep 17 00:00:00 2001
From: Pawel Kaminski <pawelx.kaminski@intel.com>
Date: Thu, 12 Jul 2018 10:22:17 -0400
Subject: [PATCH] test/vhost: test multiple connections to a single vhost
 device

Two fio instancess will try to do simultaneous I/O
to a single vhost block device.

The test uses default_initiator.job as a fio config,
which apparently wasn't used anywhere and had to be
slightly adjusted to work. Specificaly, we had to
specify an empty job in the config file, as specifying
it from the command line wouldn't make it inherit
any options from the [global] section in the file.

Change-Id: I2c2a96a709c567f5c910715a5b3d85a4e28bcb97
Signed-off-by: Pawel Kaminski <pawelx.kaminski@intel.com>
Signed-off-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Reviewed-on: https://review.gerrithub.io/c/419066
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Pawel Wodkowski <pawelx.wodkowski@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
---
 autotest.sh                                   |  1 +
 .../common/fio_jobs/default_initiator.job     |  2 ++
 test/vhost/shared/bdev.conf                   |  5 ++++
 test/vhost/shared/shared.sh                   | 30 +++++++++++++++++++
 4 files changed, 38 insertions(+)
 create mode 100644 test/vhost/shared/bdev.conf
 create mode 100755 test/vhost/shared/shared.sh

diff --git a/autotest.sh b/autotest.sh
index c37fdef67..43814ca34 100755
--- a/autotest.sh
+++ b/autotest.sh
@@ -179,6 +179,7 @@ if [ $SPDK_TEST_VHOST_INIT -eq 1 ]; then
 	timing_enter vhost_initiator
 	run_test suite ./test/vhost/initiator/blockdev.sh
 	run_test suite ./test/spdkcli/virtio.sh
+	run_test suite ./test/vhost/shared/shared.sh
 	report_test_completion "vhost_initiator"
 	timing_exit vhost_initiator
 fi
diff --git a/test/vhost/common/fio_jobs/default_initiator.job b/test/vhost/common/fio_jobs/default_initiator.job
index 43c1404b0..32c993bd2 100644
--- a/test/vhost/common/fio_jobs/default_initiator.job
+++ b/test/vhost/common/fio_jobs/default_initiator.job
@@ -7,3 +7,5 @@ do_verify=1
 verify=md5
 verify_backlog=1024
 fsync_on_close=1
+iodepth=32
+[job0]
diff --git a/test/vhost/shared/bdev.conf b/test/vhost/shared/bdev.conf
new file mode 100644
index 000000000..95e8af514
--- /dev/null
+++ b/test/vhost/shared/bdev.conf
@@ -0,0 +1,5 @@
+[VirtioUser0]
+  Path Malloc.0
+  Queues 2
+  Type Blk
+  Name VirtioBlk0
diff --git a/test/vhost/shared/shared.sh b/test/vhost/shared/shared.sh
new file mode 100755
index 000000000..939fe1111
--- /dev/null
+++ b/test/vhost/shared/shared.sh
@@ -0,0 +1,30 @@
+#!/usr/bin/env bash
+
+set -e
+SHARED_DIR=$(readlink -f $(dirname $0))
+[[ -z "$COMMON_DIR" ]] && COMMON_DIR="$(cd $SHARED_DIR/../common && pwd)"
+ROOT_DIR=$(readlink -f $SHARED_DIR/../../..)
+source $COMMON_DIR/common.sh
+PLUGIN_DIR=$ROOT_DIR/examples/bdev/fio_plugin
+FIO_PATH="/usr/src/fio"
+rpc_py="$SPDK_BUILD_DIR/scripts/rpc.py -s $(get_vhost_dir)/rpc.sock"
+
+function run_spdk_fio() {
+	LD_PRELOAD=$PLUGIN_DIR/fio_plugin $FIO_PATH/fio --ioengine=spdk_bdev \
+	"$COMMON_DIR/fio_jobs/default_initiator.job" --runtime=10 --rw=randrw \
+	--spdk_mem=1024 --spdk_single_seg=1 --spdk_conf=$SHARED_DIR/bdev.conf "$@"
+}
+
+trap 'error_exit "${FUNCNAME}" "${LINENO}"' ERR SIGTERM SIGABRT
+
+spdk_vhost_run
+
+$rpc_py construct_malloc_bdev -b Malloc 124 4096
+$rpc_py construct_vhost_blk_controller Malloc.0 Malloc
+
+run_spdk_fio --size=50% --offset=0 --filename=VirtioBlk0 &
+run_fio_pid=$!
+sleep 1
+run_spdk_fio --size=50% --offset=50% --filename=VirtioBlk0
+wait $run_fio_pid
+spdk_vhost_kill