2018-03-29 18:31:42 +00:00
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/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright(c) 2010-2018 Intel Corporation
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*/
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#include <stdlib.h>
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#include <string.h>
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#include <rte_ethdev.h>
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2018-04-17 13:17:19 +00:00
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#include <rte_string_fns.h>
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2018-03-29 18:31:42 +00:00
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#include "link.h"
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#include "mempool.h"
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static struct link_list link_list;
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int
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link_init(void)
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{
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TAILQ_INIT(&link_list);
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return 0;
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}
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struct link *
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link_find(const char *name)
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{
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struct link *link;
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if (name == NULL)
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return NULL;
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TAILQ_FOREACH(link, &link_list, node)
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if (strcmp(link->name, name) == 0)
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return link;
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return NULL;
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}
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2018-06-22 14:31:47 +00:00
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struct link *
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link_next(struct link *link)
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{
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return (link == NULL) ? TAILQ_FIRST(&link_list) : TAILQ_NEXT(link, node);
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}
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2018-03-29 18:31:42 +00:00
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static struct rte_eth_conf port_conf_default = {
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.link_speeds = 0,
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.rxmode = {
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.mq_mode = ETH_MQ_RX_NONE,
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.max_rx_pkt_len = 9000, /* Jumbo frame max packet len */
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.split_hdr_size = 0, /* Header split buffer size */
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},
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.rx_adv_conf = {
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.rss_conf = {
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.rss_key = NULL,
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.rss_key_len = 40,
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.rss_hf = 0,
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},
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},
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.txmode = {
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.mq_mode = ETH_MQ_TX_NONE,
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},
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.lpbk_mode = 0,
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};
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#define RETA_CONF_SIZE (ETH_RSS_RETA_SIZE_512 / RTE_RETA_GROUP_SIZE)
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static int
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rss_setup(uint16_t port_id,
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uint16_t reta_size,
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struct link_params_rss *rss)
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{
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struct rte_eth_rss_reta_entry64 reta_conf[RETA_CONF_SIZE];
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uint32_t i;
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int status;
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/* RETA setting */
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memset(reta_conf, 0, sizeof(reta_conf));
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for (i = 0; i < reta_size; i++)
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reta_conf[i / RTE_RETA_GROUP_SIZE].mask = UINT64_MAX;
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for (i = 0; i < reta_size; i++) {
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uint32_t reta_id = i / RTE_RETA_GROUP_SIZE;
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uint32_t reta_pos = i % RTE_RETA_GROUP_SIZE;
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uint32_t rss_qs_pos = i % rss->n_queues;
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reta_conf[reta_id].reta[reta_pos] =
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(uint16_t) rss->queue_id[rss_qs_pos];
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}
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/* RETA update */
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status = rte_eth_dev_rss_reta_update(port_id,
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reta_conf,
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reta_size);
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return status;
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}
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struct link *
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link_create(const char *name, struct link_params *params)
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{
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struct rte_eth_dev_info port_info;
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struct rte_eth_conf port_conf;
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struct link *link;
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struct link_params_rss *rss;
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struct mempool *mempool;
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uint32_t cpu_id, i;
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int status;
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uint16_t port_id;
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/* Check input params */
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if ((name == NULL) ||
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link_find(name) ||
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(params == NULL) ||
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(params->rx.n_queues == 0) ||
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(params->rx.queue_size == 0) ||
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(params->tx.n_queues == 0) ||
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(params->tx.queue_size == 0))
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return NULL;
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port_id = params->port_id;
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if (params->dev_name) {
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status = rte_eth_dev_get_port_by_name(params->dev_name,
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&port_id);
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if (status)
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return NULL;
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} else
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if (!rte_eth_dev_is_valid_port(port_id))
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return NULL;
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2019-09-12 16:42:29 +00:00
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if (rte_eth_dev_info_get(port_id, &port_info) != 0)
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return NULL;
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2018-03-29 18:31:42 +00:00
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mempool = mempool_find(params->rx.mempool_name);
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if (mempool == NULL)
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return NULL;
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rss = params->rx.rss;
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if (rss) {
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if ((port_info.reta_size == 0) ||
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(port_info.reta_size > ETH_RSS_RETA_SIZE_512))
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return NULL;
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if ((rss->n_queues == 0) ||
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(rss->n_queues >= LINK_RXQ_RSS_MAX))
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return NULL;
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for (i = 0; i < rss->n_queues; i++)
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if (rss->queue_id[i] >= port_info.max_rx_queues)
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return NULL;
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}
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/**
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* Resource create
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*/
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/* Port */
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memcpy(&port_conf, &port_conf_default, sizeof(port_conf));
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if (rss) {
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port_conf.rxmode.mq_mode = ETH_MQ_RX_RSS;
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2018-08-06 15:24:16 +00:00
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port_conf.rx_adv_conf.rss_conf.rss_hf =
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(ETH_RSS_IP | ETH_RSS_TCP | ETH_RSS_UDP) &
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port_info.flow_type_rss_offloads;
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2018-03-29 18:31:42 +00:00
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}
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cpu_id = (uint32_t) rte_eth_dev_socket_id(port_id);
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if (cpu_id == (uint32_t) SOCKET_ID_ANY)
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cpu_id = 0;
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status = rte_eth_dev_configure(
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port_id,
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params->rx.n_queues,
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params->tx.n_queues,
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&port_conf);
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if (status < 0)
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return NULL;
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2019-09-14 11:37:33 +00:00
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if (params->promiscuous) {
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status = rte_eth_promiscuous_enable(port_id);
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if (status != 0)
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return NULL;
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}
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2018-03-29 18:31:42 +00:00
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/* Port RX */
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for (i = 0; i < params->rx.n_queues; i++) {
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status = rte_eth_rx_queue_setup(
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port_id,
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i,
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params->rx.queue_size,
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cpu_id,
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NULL,
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mempool->m);
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if (status < 0)
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return NULL;
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}
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/* Port TX */
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for (i = 0; i < params->tx.n_queues; i++) {
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status = rte_eth_tx_queue_setup(
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port_id,
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i,
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params->tx.queue_size,
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cpu_id,
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NULL);
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if (status < 0)
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return NULL;
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}
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/* Port start */
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status = rte_eth_dev_start(port_id);
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if (status < 0)
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return NULL;
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if (rss) {
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status = rss_setup(port_id, port_info.reta_size, rss);
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if (status) {
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rte_eth_dev_stop(port_id);
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return NULL;
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}
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}
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/* Port link up */
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status = rte_eth_dev_set_link_up(port_id);
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if ((status < 0) && (status != -ENOTSUP)) {
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rte_eth_dev_stop(port_id);
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return NULL;
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}
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/* Node allocation */
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link = calloc(1, sizeof(struct link));
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if (link == NULL) {
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rte_eth_dev_stop(port_id);
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return NULL;
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}
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/* Node fill in */
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2018-04-17 13:17:19 +00:00
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strlcpy(link->name, name, sizeof(link->name));
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2018-03-29 18:31:42 +00:00
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link->port_id = port_id;
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link->n_rxq = params->rx.n_queues;
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link->n_txq = params->tx.n_queues;
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/* Node add to list */
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TAILQ_INSERT_TAIL(&link_list, link, node);
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return link;
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}
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int
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link_is_up(const char *name)
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{
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struct rte_eth_link link_params;
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struct link *link;
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/* Check input params */
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if (name == NULL)
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return 0;
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link = link_find(name);
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if (link == NULL)
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return 0;
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/* Resource */
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2019-09-10 08:25:50 +00:00
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if (rte_eth_link_get(link->port_id, &link_params) < 0)
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return 0;
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2018-03-29 18:31:42 +00:00
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return (link_params.link_status == ETH_LINK_DOWN) ? 0 : 1;
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}
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