/*
 * Copyright (c) 2013-2015 Intel Corporation.  All rights reserved.
 * Copyright (c) 2014-2017 Cisco Systems, Inc.  All rights reserved.
 * Copyright (c) 2020-2021 Amazon.com, Inc. or its affiliates. All rights reserved.
 *
 * This software is available to you under a choice of one of two
 * licenses.  You may choose to be licensed under the terms of the GNU
 * General Public License (GPL) Version 2, available from the file
 * COPYING in the main directory of this source tree, or the
 * BSD license below:
 *
 *     Redistribution and use in source and binary forms, with or
 *     without modification, are permitted provided that the following
 *     conditions are met:
 *
 *      - Redistributions of source code must retain the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer.
 *
 *      - Redistributions in binary form must reproduce the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer in the documentation and/or other materials
 *        provided with the distribution.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

#include <stdio.h>
#include <stdlib.h>
#include <getopt.h>

#include <rdma/fi_errno.h>
#include <rdma/fi_endpoint.h>

#include "shared.h"
#include "benchmark_shared.h"

static int run(void)
{
	int i, ret;

	ret = ft_init_fabric();
	if (ret)
		return ret;

	/* Post an extra receive to avoid lacking a posted receive in the
	 * finalize.
	 */
	ret = fi_recv(ep, rx_buf, rx_size + ft_rx_prefix_size(), mr_desc,
			0, &rx_ctx);
	if (ret)
		return ret;

	if (!(opts.options & FT_OPT_SIZE)) {
		for (i = 0; i < TEST_CNT; i++) {
			if (!ft_use_size(i, opts.sizes_enabled))
				continue;
			opts.transfer_size = test_size[i].size;
			init_test(&opts, test_name, sizeof(test_name));
			ret = pingpong();
			if (ret)
				return ret;
		}
	} else {
		init_test(&opts, test_name, sizeof(test_name));
		ret = pingpong();
		if (ret)
			return ret;
	}

	return ft_finalize();
}

int main(int argc, char **argv)
{
	int ret, op;

	opts = INIT_OPTS;

	timeout = 5;

	hints = fi_allocinfo();
	if (!hints)
		return EXIT_FAILURE;

	while ((op = getopt_long(argc, argv, "hT:" CS_OPTS INFO_OPTS BENCHMARK_OPTS,
				 long_opts, &lopt_idx)) != -1) {
		switch (op) {
		case 'T':
			timeout = atoi(optarg);
			break;
		default:
			if (!ft_parse_long_opts(op, optarg))
				continue;
			ft_parse_benchmark_opts(op, optarg);
			ft_parseinfo(op, optarg, hints, &opts);
			ft_parsecsopts(op, optarg, &opts);
			break;
		case '?':
		case 'h':
			ft_csusage(argv[0], "Ping pong client and server using UD.");
			ft_benchmark_usage();
			FT_PRINT_OPTS_USAGE("-T <timeout>",
					"seconds before timeout on receive");
			ft_longopts_usage();
			return EXIT_FAILURE;
		}
	}

	if (optind < argc)
		opts.dst_addr = argv[optind];

	/*
	 * Because dgram endpoint is not reliable, we
	 * must use out-of-band sync
	 */
	opts.options |= FT_OPT_OOB_SYNC;

	hints->ep_attr->type = FI_EP_DGRAM;
	if (opts.options & FT_OPT_SIZE)
		hints->ep_attr->max_msg_size = opts.transfer_size;
	hints->caps = FI_MSG;
	hints->mode |= FI_CONTEXT;
	hints->domain_attr->mr_mode = opts.mr_mode;
	hints->domain_attr->threading = FI_THREAD_DOMAIN;
	hints->tx_attr->tclass = FI_TC_LOW_LATENCY;
	hints->addr_format = opts.address_format;

	ret = run();

	ft_free_res();
	return ft_exit_code(ret);
}