[spp] [PATCH 08/15] tools/sppc: add l2fwd app continer

[ogawa.yasufumi at lab.ntt.co.jp]

From: Yasufumi Ogawa <ogawa.yasufumi at lab.ntt.co.jp>

Signed-off-by: Yasufumi Ogawa <ogawa.yasufumi at lab.ntt.co.jp>
---
 tools/sppc/app/l2fwd.py | 96 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 96 insertions(+)
 create mode 100755 tools/sppc/app/l2fwd.py

diff --git a/tools/sppc/app/l2fwd.py b/tools/sppc/app/l2fwd.py
new file mode 100755
index 0000000..3b7789c
--- /dev/null
+++ b/tools/sppc/app/l2fwd.py
@@ -0,0 +1,96 @@
+#!/usr/bin/env python
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright(c) 2018 Nippon Telegraph and Telephone Corporation
+
+import argparse
+import os
+import subprocess
+import sys
+
+work_dir = os.path.dirname(__file__)
+sys.path.append(work_dir + '/..')
+from conf import env
+from lib import app_helper
+from lib import common
+
+target_name = 'dpdk'
+
+
+def parse_args():
+    parser = argparse.ArgumentParser(
+        description="Launcher for l2fwd application container")
+
+    parser = app_helper.add_eal_args(parser)
+    parser = app_helper.add_appc_args(parser)
+
+    # Application specific args
+    parser.add_argument(
+        '-p', '--port-mask',
+        type=str,
+        help="Port mask")
+
+    parser = app_helper.add_sppc_args(parser)
+    return parser.parse_args()
+
+
+def main():
+    args = parse_args()
+
+    # Check for other mandatory opitons.
+    if args.port_mask is None:
+        common.error_exit('--port-mask')
+    if args.dev_ids is None:
+        common.error_exit('--dev-ids')
+
+    # Setup for vhost devices with given device IDs.
+    dev_ids_list = app_helper.dev_ids_to_list(args.dev_ids)
+    sock_files = app_helper.sock_files(dev_ids_list)
+
+    # Setup docker command.
+    docker_cmd = ['sudo', 'docker', 'run', '\\']
+    docker_opts = app_helper.setup_docker_opts(
+        args, target_name, sock_files)
+
+    # Check if the number of ports is even for l2fwd.
+    nof_ports = app_helper.count_ports(args.port_mask)
+    if (nof_ports % 2) != 0:
+        print("Error: Number of ports must be an even number!")
+        exit()
+
+    # Setup l2fwd command run on container.
+    cmd_path = '%s/examples/l2fwd/%s/l2fwd' % (
+        env.RTE_SDK, env.RTE_TARGET)
+
+    l2fwd_cmd = [cmd_path, '\\']
+
+    file_prefix = 'spp-l2fwd-container%d' % dev_ids_list[0]
+    eal_opts = app_helper.setup_eal_opts(args, file_prefix)
+
+    l2fwd_opts = ['-p', args.port_mask, '\\']
+
+    # Parse vhost device IDs and Check the number of devices is
+    # sufficient for port mask.
+    if app_helper.is_sufficient_dev_ids(
+            args.dev_ids, args.port_mask) is not True:
+        print("Error: Cannot reserve ports '%s (= 0b%s)' on '%s'." % (
+            args.port_mask,
+            format(int(args.port_mask, 16), 'b'),
+            args.dev_ids))
+        exit()
+
+    cmds = docker_cmd + docker_opts + l2fwd_cmd + eal_opts + l2fwd_opts
+    if cmds[-1] == '\\':
+        cmds.pop()
+    common.print_pretty_commands(cmds)
+
+    if args.dry_run is True:
+        exit()
+
+    # Remove delimiters for print_pretty_commands().
+    while '\\' in cmds:
+        cmds.remove('\\')
+    subprocess.call(cmds)
+
+
+if __name__ == '__main__':
+    main()
-- 
2.17.1