[spp] [PATCH 12/15] tools/sppc: add load-balancer app continer

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

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

Signed-off-by: Yasufumi Ogawa <ogawa.yasufumi@lab.ntt.co.jp>
---
 tools/sppc/app/load-balancer.py | 141 ++++++++++++++++++++++++++++++++
 1 file changed, 141 insertions(+)
 create mode 100755 tools/sppc/app/load-balancer.py

diff --git a/tools/sppc/app/load-balancer.py b/tools/sppc/app/load-balancer.py
new file mode 100755
index 0000000..0f6d6e1
--- /dev/null
+++ b/tools/sppc/app/load-balancer.py
@@ -0,0 +1,141 @@
+#!/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 load-balancer application container")
+
+    parser = app_helper.add_eal_args(parser)
+    parser = app_helper.add_appc_args(parser)
+
+    # Application specific args
+    parser.add_argument(
+        '-rx', '--rx-ports',
+        type=str,
+        help="List of rx ports and queues handled by the I/O rx lcores")
+    parser.add_argument(
+        '-tx', '--tx-ports',
+        type=str,
+        help="List of tx ports and queues handled by the I/O tx lcores")
+    parser.add_argument(
+        '-w', '--worker-lcores',
+        type=str,
+        help="List of worker lcores")
+    parser.add_argument(
+        '-rsz', '--ring-sizes',
+        type=str,
+        help="Ring sizes of 'rx_read,rx_send,w_send,tx_written'")
+    parser.add_argument(
+        '-bsz', '--burst-sizes',
+        type=str,
+        help="Burst sizes of rx, worker or tx")
+    parser.add_argument(
+        '--lpm',
+        type=str,
+        help="List of LPM rules")
+    parser.add_argument(
+        '--pos-lb',
+        type=int,
+        help="Position of the 1-byte field used for identify worker")
+
+    parser = app_helper.add_sppc_args(parser)
+    return parser.parse_args()
+
+
+def main():
+    args = parse_args()
+
+    # Check for other mandatory opitons.
+    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)
+
+    app_name = 'load_balancer'
+    cmd_path = '%s/examples/%s/%s/%s' % (
+        env.RTE_SDK, app_name, env.RTE_TARGET, app_name)
+
+    # Setup testpmd command.
+    lb_cmd = [cmd_path, '\\']
+
+    file_prefix = 'spp-lb-container%d' % dev_ids_list[0]
+    eal_opts = app_helper.setup_eal_opts(args, file_prefix)
+
+    lb_opts = []
+
+    # Check for other mandatory opitons.
+    if args.rx_ports is None:
+        common.error_exit('--rx-ports')
+    else:
+        rx_ports = '"%s"' % args.rx_ports
+        lb_opts += ['--rx', rx_ports, '\\']
+
+    if args.tx_ports is None:
+        common.error_exit('--tx-ports')
+    else:
+        tx_ports = '"%s"' % args.tx_ports
+        lb_opts += ['--tx', tx_ports, '\\']
+
+    if args.worker_lcores is None:
+        common.error_exit('--worker-lcores')
+    else:
+        worker_lcores = '%s' % args.worker_lcores
+        lb_opts += ['--w', worker_lcores, '\\']
+
+    if args.lpm is None:
+        common.error_exit('--lpm')
+    else:
+        lpm = '"%s"' % args.lpm
+        lb_opts += ['--lpm', lpm, '\\']
+
+    # Check optional opitons.
+    if args.ring_sizes is not None:
+        lb_opts += [
+            '--ring-sizes', args.ring_sizes, '\\']
+    if args.burst_sizes is not None:
+        lb_opts += [
+            '--burst-sizes', args.burst_sizes, '\\']
+    if args.pos_lb is not None:
+        lb_opts += [
+            '--pos-lb', str(args.pos_lb)]
+
+    cmds = docker_cmd + docker_opts + lb_cmd + eal_opts + lb_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('\\')
+    # Call with shell=True because parsing '--w' option is failed
+    # without it.
+    subprocess.call(' '.join(cmds), shell=True)
+
+
+if __name__ == '__main__':
+    main()
-- 
2.17.1