eth_rxq_managed_mempool_receive_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 <stdbool.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_RXQ_MANAGED_MEMPOOL_RECEIVE::MAIN);
 
/* Configuration struct */
struct eth_rxq_cfg {
    char ib_dev_name[DOCA_DEVINFO_IBDEV_NAME_SIZE]; /* DOCA IB device name */
    bool timestamp_enable;              /* timestamp enable */
    uint16_t headroom_size;             /* headroom size */
    uint16_t tailroom_size;             /* tailroom size */
};
 
/* Sample's Logic */
doca_error_t eth_rxq_managed_mempool_receive(const char *ib_dev_name,
                         bool timestamp_enable,
                         uint16_t headroom_size,
                         uint16_t tailroom_size);
 
/*
 * 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 device_address_callback(void *param, void *config)
{
    struct eth_rxq_cfg *eth_rxq_cfg = (struct eth_rxq_cfg *)config;
 
    return extract_ibdev_name((char *)param, eth_rxq_cfg->ib_dev_name);
}
 
/*
 * ARGP Callback - timestamp enable parameter
 *
 * @param [in]: Input parameter
 * @config [out]: Program configuration context
 * @return: DOCA_SUCCESS on success and DOCA_ERROR otherwise
 */
static doca_error_t timestamp_callback(void *param, void *config)
{
    (void)param;
    struct eth_rxq_cfg *eth_rxq_cfg = (struct eth_rxq_cfg *)config;
 
    eth_rxq_cfg->timestamp_enable = true;
 
    return DOCA_SUCCESS;
}
 
/*
 * ARGP Callback - headroom size parameter
 *
 * @param [in]: Input parameter
 * @config [out]: Program configuration context
 * @return: DOCA_SUCCESS on success and DOCA_ERROR otherwise
 */
static doca_error_t headroom_callback(void *param, void *config)
{
    uint16_t headroom_size = strtoul((char *)param, NULL, 10);
    struct eth_rxq_cfg *eth_rxq_cfg = (struct eth_rxq_cfg *)config;
 
    eth_rxq_cfg->headroom_size = headroom_size;
 
    return DOCA_SUCCESS;
}
 
/*
 * ARGP Callback - tailroom size parameter
 *
 * @param [in]: Input parameter
 * @config [out]: Program configuration context
 * @return: DOCA_SUCCESS on success and DOCA_ERROR otherwise
 */
static doca_error_t tailroom_callback(void *param, void *config)
{
    uint16_t tailroom_size = strtoul((char *)param, NULL, 10);
    struct eth_rxq_cfg *eth_rxq_cfg = (struct eth_rxq_cfg *)config;
 
    eth_rxq_cfg->tailroom_size = tailroom_size;
 
    return DOCA_SUCCESS;
}
 
/*
 * Register the command line parameters for the sample.
 *
 * @return: DOCA_SUCCESS on success and DOCA_ERROR otherwise
 */
static doca_error_t register_eth_rxq_params(void)
{
    doca_error_t result;
    struct doca_argp_param *dev_ib_name_param;
    struct doca_argp_param *enable_timestamp_param;
    struct doca_argp_param *headroom_param;
    struct doca_argp_param *tailroom_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, device_address_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(&enable_timestamp_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(enable_timestamp_param, "ts");
    doca_argp_param_set_long_name(enable_timestamp_param, "timestamp");
    doca_argp_param_set_description(enable_timestamp_param, "Enable timestamp retrieval - default: disabled");
    doca_argp_param_set_callback(enable_timestamp_param, timestamp_callback);
    doca_argp_param_set_type(enable_timestamp_param, DOCA_ARGP_TYPE_BOOLEAN);
    result = doca_argp_register_param(enable_timestamp_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(&headroom_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(headroom_param, "hr");
    doca_argp_param_set_long_name(headroom_param, "headroom");
    doca_argp_param_set_description(headroom_param, "Packet headroom size - default: 0");
    doca_argp_param_set_callback(headroom_param, headroom_callback);
    doca_argp_param_set_type(headroom_param, DOCA_ARGP_TYPE_STRING);
    result = doca_argp_register_param(headroom_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(&tailroom_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(tailroom_param, "tr");
    doca_argp_param_set_long_name(tailroom_param, "tailroom");
    doca_argp_param_set_description(tailroom_param, "Packet tailroom size - default: 0");
    doca_argp_param_set_callback(tailroom_param, tailroom_callback);
    doca_argp_param_set_type(tailroom_param, DOCA_ARGP_TYPE_STRING);
    result = doca_argp_register_param(tailroom_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_rxq_cfg eth_rxq_cfg;
    struct doca_log_backend *sdk_log;
    int exit_status = EXIT_FAILURE;
 
    /* 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_rxq_cfg.ib_dev_name, "mlx5_0");
    eth_rxq_cfg.timestamp_enable = false;
    eth_rxq_cfg.headroom_size = 0;
    eth_rxq_cfg.tailroom_size = 0;
 
    result = doca_argp_init(NULL, &eth_rxq_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_rxq_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_rxq_managed_mempool_receive(eth_rxq_cfg.ib_dev_name,
                         eth_rxq_cfg.timestamp_enable,
                         eth_rxq_cfg.headroom_size,
                         eth_rxq_cfg.tailroom_size);
    if (result != DOCA_SUCCESS) {
        DOCA_LOG_ERR("eth_rxq_managed_mempool_receive() 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;
}