eth_txq_send_ethernet_frames_main.c

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/*
 * Copyright (c) 2023 NVIDIA CORPORATION AND AFFILIATES.  All rights reserved.
 *
 * 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.
 *     * Neither the name of the NVIDIA CORPORATION nor the names of its contributors may be used
 *       to endorse or promote products derived from this software without specific prior written
 *       permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
 * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL NVIDIA CORPORATION BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TOR (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 */
 
#include <stdlib.h>
#include <string.h>
 
#include <doca_argp.h>
#include <doca_dev.h>
#include <doca_error.h>
#include <doca_log.h>
 
#include "eth_common.h"
 
DOCA_LOG_REGISTER(ETH_TXQ_SEND_ETHERNET_FRAMES::MAIN);
 
/* Configuration struct */
struct eth_txq_cfg {
    char ib_dev_name[DOCA_DEVINFO_IBDEV_NAME_SIZE];       /* DOCA IB device name */
    uint8_t dest_mac_address[DOCA_DEVINFO_MAC_ADDR_SIZE]; /* destination MAC address */
};
 
/* Sample's Logic */
doca_error_t eth_txq_send_ethernet_frames(const char *ib_dev_name, uint8_t *dest_mac_addr);
 
/*
 * ARGP Callback - Handle IB device name parameter
 *
 * @param [in]: Input parameter
 * @config [out]: Program configuration context
 * @return: DOCA_SUCCESS on success and DOCA_ERROR otherwise
 */
static doca_error_t ibdev_name_callback(void *param, void *config)
{
    struct eth_txq_cfg *eth_txq_cfg = (struct eth_txq_cfg *)config;
 
    return extract_ibdev_name((char *)param, eth_txq_cfg->ib_dev_name);
}
 
/*
 * ARGP Callback - Handle MAC address parameter
 *
 * @param [in]: Input parameter
 * @config [out]: Program configuration context
 * @return: DOCA_SUCCESS on success and DOCA_ERROR otherwise
 */
static doca_error_t mac_addr_callback(void *param, void *config)
{
    struct eth_txq_cfg *eth_txq_cfg = (struct eth_txq_cfg *)config;
 
    return extract_mac_addr((char *)param, eth_txq_cfg->dest_mac_address);
}
 
/*
 * Register the command line parameters for the sample.
 *
 * @return: DOCA_SUCCESS on success and DOCA_ERROR otherwise
 */
static doca_error_t register_eth_txq_params(void)
{
    doca_error_t result;
    struct doca_argp_param *dev_ib_name_param, *mac_param;
 
    result = doca_argp_param_create(&dev_ib_name_param);
    if (result != DOCA_SUCCESS) {
        DOCA_LOG_ERR("Failed to create ARGP param: %s", doca_error_get_descr(result));
        return result;
    }
 
    doca_argp_param_set_short_name(dev_ib_name_param, "d");
    doca_argp_param_set_long_name(dev_ib_name_param, "device");
    doca_argp_param_set_description(dev_ib_name_param, "IB device name - default: mlx5_0");
    doca_argp_param_set_callback(dev_ib_name_param, ibdev_name_callback);
    doca_argp_param_set_type(dev_ib_name_param, DOCA_ARGP_TYPE_STRING);
    result = doca_argp_register_param(dev_ib_name_param);
    if (result != DOCA_SUCCESS) {
        DOCA_LOG_ERR("Failed to register program param: %s", doca_error_get_descr(result));
        return result;
    }
 
    result = doca_argp_param_create(&mac_param);
    if (result != DOCA_SUCCESS) {
        DOCA_LOG_ERR("Failed to create ARGP param: %s", doca_error_get_descr(result));
        return result;
    }
    doca_argp_param_set_short_name(mac_param, "m");
    doca_argp_param_set_long_name(mac_param, "mac-addr");
    doca_argp_param_set_description(
        mac_param,
        "Destination MAC address to associate with the ethernet frames - default: FF:FF:FF:FF:FF:FF");
    doca_argp_param_set_callback(mac_param, mac_addr_callback);
    doca_argp_param_set_type(mac_param, DOCA_ARGP_TYPE_STRING);
    result = doca_argp_register_param(mac_param);
    if (result != DOCA_SUCCESS) {
        DOCA_LOG_ERR("Failed to register program param: %s", doca_error_get_descr(result));
        return result;
    }
 
    return DOCA_SUCCESS;
}
 
/*
 * Sample main function
 *
 * @argc [in]: command line arguments size
 * @argv [in]: array of command line arguments
 * @return: EXIT_SUCCESS on success and EXIT_FAILURE otherwise
 */
int main(int argc, char **argv)
{
    doca_error_t result;
    struct eth_txq_cfg eth_txq_cfg;
    struct doca_log_backend *sdk_log;
    int exit_status = EXIT_FAILURE;
    int i;
 
    /* Register a logger backend */
    result = doca_log_backend_create_standard();
    if (result != DOCA_SUCCESS)
        goto sample_exit;
 
    /* Register a logger backend for internal SDK errors and warnings */
    result = doca_log_backend_create_with_file_sdk(stderr, &sdk_log);
    if (result != DOCA_SUCCESS)
        goto sample_exit;
    result = doca_log_backend_set_sdk_level(sdk_log, DOCA_LOG_LEVEL_WARNING);
    if (result != DOCA_SUCCESS)
        goto sample_exit;
 
    strcpy(eth_txq_cfg.ib_dev_name, "mlx5_0");
    for (i = 0; i < DOCA_DEVINFO_MAC_ADDR_SIZE; i++)
        eth_txq_cfg.dest_mac_address[i] = 0xff;
 
    result = doca_argp_init(NULL, &eth_txq_cfg);
    if (result != DOCA_SUCCESS) {
        DOCA_LOG_ERR("Failed to init ARGP resources: %s", doca_error_get_descr(result));
        goto sample_exit;
    }
 
    result = register_eth_txq_params();
    if (result != DOCA_SUCCESS) {
        DOCA_LOG_ERR("Failed to register ARGP params: %s", doca_error_get_descr(result));
        goto argp_cleanup;
    }
 
    result = doca_argp_start(argc, argv);
    if (result != DOCA_SUCCESS) {
        DOCA_LOG_ERR("Failed to parse sample input: %s", doca_error_get_descr(result));
        goto argp_cleanup;
    }
 
    result = eth_txq_send_ethernet_frames(eth_txq_cfg.ib_dev_name, eth_txq_cfg.dest_mac_address);
    if (result != DOCA_SUCCESS) {
        DOCA_LOG_ERR("eth_txq_send_ethernet_frames() encountered an error: %s", doca_error_get_descr(result));
        goto argp_cleanup;
    }
 
    exit_status = EXIT_SUCCESS;
 
argp_cleanup:
    doca_argp_destroy();
sample_exit:
    if (exit_status == EXIT_SUCCESS)
        DOCA_LOG_INFO("Sample finished successfully");
    else
        DOCA_LOG_INFO("Sample finished with errors");
    return exit_status;
}