ci: virtio extbuf basic functionality test

Adds virtio extbuf basic functionality test.

Signed-off-by: Rahul Bhansali <rbhansali@marvell.com>
Change-Id: I31cb088aae6eea02fc685f71eaf13be5efdf1c43
Reviewed-on: https://sj1git1.cavium.com/c/IP/SW/dataplane/dpu-offload/+/132678
Reviewed-by: Nithin Kumar Dabilpuram <ndabilpuram@marvell.com>
Tested-by: sa_ip-toolkits-Jenkins <sa_ip-toolkits-jenkins@marvell.com>

ci/test/dao-test/virtio/extbuf/meson.build

@@ -0,0 +1,21 @@
+# SPDX-License-Identifier: Marvell-MIT
+# Copyright (c) 2024 Marvell.
+
+# Test script
+tests = [
+    # Name, Script, Args
+    ['virtio_extbuf_1c', 'virtio_extbuf_1c.sh', ''],
+]
+
+test_dir = meson.current_build_dir()
+foreach t : tests
+    test_name = t[0]
+    test_script = t[1]
+    test_args = t[2]
+    test(test_name,
+         dao_test_script_wrapper,
+         env : [['DAO_TEST=' + test_name], ['TEST_DIR=' + test_dir]],
+         args : [[test_script], [test_args]],
+         is_parallel : false, suite : 'dao-virtio')
+endforeach
+

ci/test/dao-test/virtio/extbuf/virtio_extbuf_1c.sh

@@ -0,0 +1,50 @@
+#!/bin/bash
+# SPDX-License-Identifier: Marvell-MIT
+# Copyright (c) 2024 Marvell.
+
+set -euo pipefail
+
+EXTBUF_1C_SCRIPT_PATH="$( cd -- "$(dirname "$0")" >/dev/null 2>&1 ; pwd -P )"
+source $EXTBUF_1C_SCRIPT_PATH/virtio_extbuf_utils.sh
+
+function virtio_extbuf_1c()
+{
+	local extbuf_pfx=${DAO_TEST}
+	local host_testpmd_pfx=${DAO_TEST}_testpmd_host
+	local extbuf_out=virtio_extbuf.${extbuf_pfx}.out
+	local if0=$(ep_device_get_inactive_if)
+
+	extbuf_register_sig_handler ${DAO_TEST} $host_testpmd_pfx $extbuf_out
+
+	ep_device_vfio_bind $if0
+
+	# Launch virtio extbuf
+	if ! extbuf_app_launch $if0 $extbuf_pfx $extbuf_out "4-5" "-p 0x1 -v 0x1 -P -l"; then
+		echo "Failed to launch virtio extbuf"
+
+		# Quit extbuf app
+		extbuf_app_quit $extbuf_pfx $extbuf_out
+		return 1
+	fi
+
+	device_part=$(ep_device_op get_part)
+	ep_host_op vdpa_setup $device_part
+
+	# Start traffic
+	extbuf_host_start_traffic $host_testpmd_pfx
+
+	# Check the performance
+	extbuf_host_check_pps $host_testpmd_pfx
+	local k=$?
+
+	# Stop Traffic and quit host testpmd
+	extbuf_host_stop_traffic $host_testpmd_pfx
+
+	ep_host_op vdpa_cleanup
+
+	# Quit extbuf app
+	extbuf_app_quit $extbuf_pfx $extbuf_out
+	return $k
+}
+
+test_run ${DAO_TEST} 2

ci/test/dao-test/virtio/extbuf/virtio_extbuf_utils.sh

@@ -0,0 +1,162 @@
+#!/bin/bash
+# SPDX-License-Identifier: Marvell-MIT
+# Copyright (c) 2024 Marvell.
+
+set -euo pipefail
+
+VIRTIO_UTILS_SCRIPT_PATH="$( cd -- "$(dirname "$0")" >/dev/null 2>&1 ; pwd -P )"
+source $VIRTIO_UTILS_SCRIPT_PATH/../../common/utils.sh
+source $VIRTIO_UTILS_SCRIPT_PATH/../../common/ep_host_utils.sh
+source $VIRTIO_UTILS_SCRIPT_PATH/../../common/ep_device_utils.sh
+source $VIRTIO_UTILS_SCRIPT_PATH/../../common/testpmd.sh
+
+find_executable "dpdk-virtio-extbuf" VIRTIO_EXTBUF "$VIRTIO_UTILS_SCRIPT_PATH/../../../../../tests"
+
+function extbuf_host_check_pps()
+{
+	local pfx=$1
+	local wait_time_sec=10
+
+	while [[ wait_time_sec -ne 0 ]]; do
+		local rx_pps=$(ep_host_op testpmd_pps $pfx 0)
+
+		if [[ rx_pps -eq 0 ]]; then
+			echo "Low PPS for ${pfx} ($rx_pps == 0)"
+		else
+			echo "Rx PPS $rx_pps as expected"
+			return 0
+		fi
+
+		sleep 1
+		wait_time_sec=$((wait_time_sec - 1))
+	done
+
+	return 1
+}
+
+function extbuf_host_start_traffic()
+{
+	local pfx=$1
+	local num_cores
+	local fwd_cores
+	local eal_args
+	local app_args
+
+	num_cores=$(ep_host_ssh_cmd "nproc --all")
+	fwd_cores=$((num_cores - 1))
+	eal_args="-l 0-$fwd_cores --socket-mem 1024 --proc-type auto --file-prefix=$pfx --no-pci \
+		  --vdev=net_virtio_user0,path=/dev/vhost-vdpa-0,mrg_rxbuf=1,packed_vq=1,in_order=1,queue_size=4096"
+	app_args="--nb-cores=$fwd_cores --port-topology=loop --rxq=$fwd_cores --txq=$fwd_cores -i"
+
+	echo "Starting Traffic on Host"
+	ep_host_op_bg 10 testpmd_launch $pfx "$eal_args" -- "$app_args"
+	ep_host_op testpmd_cmd $pfx start tx_first 32
+	echo "Started Traffic on Host"
+}
+
+function extbuf_host_stop_traffic()
+{
+	local pfx=$1
+
+	echo "Stopping Traffic on Host"
+	ep_host_op testpmd_cmd $pfx stop
+	ep_host_op testpmd_stop $pfx
+	echo "Stopped Traffic no Host"
+}
+
+function extbuf_sig_handler()
+{
+	local status=$?
+	local sig=$1
+	local pfx=$2
+	local tpmd_pfx=$3
+	local dev_log=$4
+	set +e
+	trap - ERR
+	trap - INT
+	trap - QUIT
+	trap - EXIT
+	if [[ $status -ne 0 ]]; then
+		echo "$sig Handler"
+	fi
+
+	if [ -f $dev_log ]; then
+		cat $dev_log
+	fi
+
+	ep_host_op testpmd_log $tpmd_pfx
+	safe_kill $pfx
+	ep_host_op safe_kill $pfx
+}
+
+function extbuf_register_sig_handler()
+{
+	local pfx=$1
+	local tpmd_pfx=$2
+	local dev_log=$3
+
+	# Register the traps
+	trap "extbuf_sig_handler ERR $pfx $tpmd_pfx $dev_log" ERR
+	trap "extbuf_sig_handler INT $pfx $tpmd_pfx $dev_log" INT
+	trap "extbuf_sig_handler QUIT $pfx $tpmd_pfx $dev_log" QUIT
+	trap "extbuf_sig_handler EXIT $pfx $tpmd_pfx $dev_log" EXIT
+}
+
+function extbuf_app_launch()
+{
+	local interface=$1
+	local extbuf_pfx=$2
+	local extbuf_out=$3
+	local cores="$4"
+	local app_args="$5"
+	local eal_args="
+		-a 0000:06:00.1 -a 0000:06:00.2 -a 0000:06:00.3 -a 0000:06:00.4
+		-a 0000:06:00.5 -a 0000:06:00.6 -a 0000:06:00.7 -a 0000:06:01.0
+		-a 0000:06:01.1 -a 0000:06:01.2 -a 0000:06:01.3 -a 0000:06:01.4
+		-a 0000:06:01.5 -a 0000:06:01.6 -a 0000:06:01.7 -a 0000:06:02.0
+		-a 0000:06:02.1 -a 0000:06:02.2 -a 0000:06:02.3 -a 0000:06:02.4
+		-a 0000:06:02.5 -a 0000:06:02.6
+	"
+	local args="-l $cores -a $interface $eal_args -- $app_args"
+	local unbuffer
+
+	unbuffer="$(command -v stdbuf) -o 0" || unbuffer=
+	rm -rf $extbuf_out
+	echo "VIRTIO_EXTBUF: $extbuf_pfx: Launching $VIRTIO_EXTBUF"
+	echo "Args: '$args'"
+
+	$unbuffer $VIRTIO_EXTBUF --file-prefix $extbuf_pfx $args &>$extbuf_out 2>&1 &
+
+	# Wait for virtio_extbuf to be up
+	local itr=0
+	while ! (tail -n20 $extbuf_out | grep -q "VIRTIO_L2FWD_EXTBUF: Entering main loop on lcore"); do
+		sleep 1
+		itr=$((itr + 1))
+		if [[ itr -eq 10 ]]; then
+			echo "Timeout waiting for virtio-extbuf";
+			cat $extbuf_out
+			return 1;
+		fi
+		echo "Waiting for virtio-extbuf to be up"
+	done
+}
+
+function extbuf_app_quit()
+{
+	local pfx=$1
+	local log=$2
+
+	cat $log
+
+	# Issue kill SIGINT
+	local pid=$(ps -ef | grep dpdk-virtio-extbuf | grep $pfx | awk '{print $2}' | xargs -n1 kill -2 2>/dev/null || true)
+
+	# Wait until the process is killed
+	local alive=$(ps -ef | grep dpdk-virtio-extbuf | grep $pfx || true)
+	while [[ "$alive" != "" ]]; do
+		sleep 1
+		alive=$(ps -ef | grep dpdk-virtio-extbuf | grep $pfx || true)
+		continue
+	done
+	rm -f $log
+}

ci/test/dao-test/virtio/meson.build

@@ -2,3 +2,4 @@
 # Copyright (c) 2024 Marvell.
 
 subdir('l2fwd')
+subdir('extbuf')