examples/pipeline/obj.c

/* SPDX-License-Identifier: BSD-3-Clause
 * Copyright(c) 2020 Intel Corporation
 */

#include <stdlib.h>
#include <string.h>

#include <rte_mbuf.h>
#include <rte_ethdev.h>
#include <rte_cryptodev.h>

#include "obj.h"

/*
 * ethdev
 */
static struct rte_eth_conf port_conf_default = {
    .link_speeds = 0,
    .rxmode = {
        .mq_mode = RTE_ETH_MQ_RX_NONE,
        .mtu = 9000 - (RTE_ETHER_HDR_LEN + RTE_ETHER_CRC_LEN), /* Jumbo frame MTU */
    },
    .rx_adv_conf = {
        .rss_conf = {
            .rss_key = NULL,
            .rss_key_len = 40,
            .rss_hf = 0,
        },
    },
    .txmode = {
        .mq_mode = RTE_ETH_MQ_TX_NONE,
    },
    .lpbk_mode = 0,
};

#define RETA_CONF_SIZE     (RTE_ETH_RSS_RETA_SIZE_512 / RTE_ETH_RETA_GROUP_SIZE)

static int
rss_setup(uint16_t port_id,
    uint16_t reta_size,
    struct ethdev_params_rss *rss)
{
    struct rte_eth_rss_reta_entry64 reta_conf[RETA_CONF_SIZE];
    uint32_t i;
    int status;

    /* RETA setting */
    memset(reta_conf, 0, sizeof(reta_conf));

    for (i = 0; i < reta_size; i++)
        reta_conf[i / RTE_ETH_RETA_GROUP_SIZE].mask = UINT64_MAX;

    for (i = 0; i < reta_size; i++) {
        uint32_t reta_id = i / RTE_ETH_RETA_GROUP_SIZE;
        uint32_t reta_pos = i % RTE_ETH_RETA_GROUP_SIZE;
        uint32_t rss_qs_pos = i % rss->n_queues;

        reta_conf[reta_id].reta[reta_pos] =
            (uint16_t) rss->queue_id[rss_qs_pos];
    }

    /* RETA update */
    status = rte_eth_dev_rss_reta_update(port_id,
        reta_conf,
        reta_size);

    return status;
}

int
ethdev_config(const char *name, struct ethdev_params *params)
{
    struct rte_eth_dev_info port_info;
    struct rte_eth_conf port_conf;
    struct ethdev_params_rss *rss;
    struct rte_mempool *mempool;
    uint32_t i;
    int numa_node, status;
    uint16_t port_id = 0;

    /* Check input params */
    if (!name ||
        !name[0] ||
        !params ||
        !params->rx.n_queues ||
        !params->rx.queue_size ||
        !params->tx.n_queues ||
        !params->tx.queue_size)
        return -EINVAL;

    status = rte_eth_dev_get_port_by_name(name, &port_id);
    if (status)
        return -EINVAL;

    status = rte_eth_dev_info_get(port_id, &port_info);
    if (status)
        return -EINVAL;

    mempool = rte_mempool_lookup(params->rx.mempool_name);
    if (!mempool)
        return -EINVAL;

    rss = params->rx.rss;
    if (rss) {
        if (!port_info.reta_size || port_info.reta_size > RTE_ETH_RSS_RETA_SIZE_512)
            return -EINVAL;

        if (!rss->n_queues || rss->n_queues >= ETHDEV_RXQ_RSS_MAX)
            return -EINVAL;

        for (i = 0; i < rss->n_queues; i++)
            if (rss->queue_id[i] >= port_info.max_rx_queues)
                return -EINVAL;
    }

    /* Port */
    memcpy(&port_conf, &port_conf_default, sizeof(port_conf));
    if (rss) {
        uint64_t rss_hf = RTE_ETH_RSS_IP | RTE_ETH_RSS_TCP | RTE_ETH_RSS_UDP;

        port_conf.rxmode.mq_mode = RTE_ETH_MQ_RX_RSS;
        port_conf.rx_adv_conf.rss_conf.rss_hf = rss_hf & port_info.flow_type_rss_offloads;
    }

    numa_node = rte_eth_dev_socket_id(port_id);
    if (numa_node == SOCKET_ID_ANY)
        numa_node = 0;

    status = rte_eth_dev_configure(
        port_id,
        params->rx.n_queues,
        params->tx.n_queues,
        &port_conf);

    if (status < 0)
        return -EINVAL;

    if (params->promiscuous) {
        status = rte_eth_promiscuous_enable(port_id);
        if (status)
            return -EINVAL;
    }

    /* Port RX */
    for (i = 0; i < params->rx.n_queues; i++) {
        status = rte_eth_rx_queue_setup(
            port_id,
            i,
            params->rx.queue_size,
            numa_node,
            NULL,
            mempool);

        if (status < 0)
            return -EINVAL;
    }

    /* Port TX */
    for (i = 0; i < params->tx.n_queues; i++) {
        status = rte_eth_tx_queue_setup(
            port_id,
            i,
            params->tx.queue_size,
            numa_node,
            NULL);

        if (status < 0)
            return -EINVAL;
    }

    /* Port start */
    status = rte_eth_dev_start(port_id);
    if (status < 0)
        return -EINVAL;

    if (rss) {
        status = rss_setup(port_id, port_info.reta_size, rss);

        if (status) {
            rte_eth_dev_stop(port_id);
            return -EINVAL;
        }
    }

    /* Port link up */
    status = rte_eth_dev_set_link_up(port_id);
    if ((status < 0) && (status != -ENOTSUP)) {
        rte_eth_dev_stop(port_id);
        return -EINVAL;
    }

    return 0;
}

/*
 * cryptodev
 */
int
cryptodev_config(const char *name, struct cryptodev_params *params)
{
    struct rte_cryptodev_info dev_info;
    struct rte_cryptodev_config dev_conf;
    struct rte_cryptodev_qp_conf queue_conf;
    uint8_t dev_id;
    uint32_t socket_id, i;
    int status;

    /* Check input parameters. */
    if (!name ||
        !params->n_queue_pairs ||
        !params->queue_size)
        return -EINVAL;

    /* Find the crypto device. */
    status = rte_cryptodev_get_dev_id(name);
    if (status < 0)
        return -EINVAL;

    dev_id = (uint8_t)status;

    rte_cryptodev_info_get(dev_id, &dev_info);
    if (params->n_queue_pairs > dev_info.max_nb_queue_pairs)
        return -EINVAL;

    socket_id = rte_cryptodev_socket_id(dev_id);

    /* Configure the crypto device. */
    memset(&dev_conf, 0, sizeof(dev_conf));
    dev_conf.socket_id = socket_id;
    dev_conf.nb_queue_pairs = params->n_queue_pairs;
    dev_conf.ff_disable = 0;

    status = rte_cryptodev_configure(dev_id, &dev_conf);
    if (status)
        return status;

    /* Configure the crypto device queue pairs. */
    memset(&queue_conf, 0, sizeof(queue_conf));
    queue_conf.nb_descriptors = params->queue_size;
    queue_conf.mp_session = NULL;

    for (i = 0; i < params->n_queue_pairs; i++) {
        status = rte_cryptodev_queue_pair_setup(dev_id, i, &queue_conf, socket_id);
        if (status)
            return status;
    }

    /* Start the crypto device. */
    status = rte_cryptodev_start(dev_id);
    if (status)
        return status;

    return 0;
}