diff options
Diffstat (limited to 'examples/ip_pipeline/link.c')
| -rw-r--r-- | examples/ip_pipeline/link.c | 269 |
1 files changed, 269 insertions, 0 deletions
diff --git a/examples/ip_pipeline/link.c b/examples/ip_pipeline/link.c new file mode 100644 index 00000000..b8a431f3 --- /dev/null +++ b/examples/ip_pipeline/link.c @@ -0,0 +1,269 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(c) 2010-2018 Intel Corporation + */ + +#include <stdlib.h> +#include <string.h> + +#include <rte_ethdev.h> +#include <rte_string_fns.h> + +#include "link.h" +#include "mempool.h" + +static struct link_list link_list; + +int +link_init(void) +{ + TAILQ_INIT(&link_list); + + return 0; +} + +struct link * +link_find(const char *name) +{ + struct link *link; + + if (name == NULL) + return NULL; + + TAILQ_FOREACH(link, &link_list, node) + if (strcmp(link->name, name) == 0) + return link; + + return NULL; +} + +static struct rte_eth_conf port_conf_default = { + .link_speeds = 0, + .rxmode = { + .mq_mode = ETH_MQ_RX_NONE, + + .header_split = 0, /* Header split */ + .hw_ip_checksum = 0, /* IP checksum offload */ + .hw_vlan_filter = 0, /* VLAN filtering */ + .hw_vlan_strip = 0, /* VLAN strip */ + .hw_vlan_extend = 0, /* Extended VLAN */ + .jumbo_frame = 0, /* Jumbo frame support */ + .hw_strip_crc = 1, /* CRC strip by HW */ + .enable_scatter = 0, /* Scattered packets RX handler */ + + .max_rx_pkt_len = 9000, /* Jumbo frame max packet len */ + .split_hdr_size = 0, /* Header split buffer size */ + }, + .rx_adv_conf = { + .rss_conf = { + .rss_key = NULL, + .rss_key_len = 40, + .rss_hf = 0, + }, + }, + .txmode = { + .mq_mode = ETH_MQ_TX_NONE, + }, + .lpbk_mode = 0, +}; + +#define RETA_CONF_SIZE (ETH_RSS_RETA_SIZE_512 / RTE_RETA_GROUP_SIZE) + +static int +rss_setup(uint16_t port_id, + uint16_t reta_size, + struct link_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_RETA_GROUP_SIZE].mask = UINT64_MAX; + + for (i = 0; i < reta_size; i++) { + uint32_t reta_id = i / RTE_RETA_GROUP_SIZE; + uint32_t reta_pos = i % RTE_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; +} + +struct link * +link_create(const char *name, struct link_params *params) +{ + struct rte_eth_dev_info port_info; + struct rte_eth_conf port_conf; + struct link *link; + struct link_params_rss *rss; + struct mempool *mempool; + uint32_t cpu_id, i; + int status; + uint16_t port_id; + + /* Check input params */ + if ((name == NULL) || + link_find(name) || + (params == NULL) || + (params->rx.n_queues == 0) || + (params->rx.queue_size == 0) || + (params->tx.n_queues == 0) || + (params->tx.queue_size == 0)) + return NULL; + + port_id = params->port_id; + if (params->dev_name) { + status = rte_eth_dev_get_port_by_name(params->dev_name, + &port_id); + + if (status) + return NULL; + } else + if (!rte_eth_dev_is_valid_port(port_id)) + return NULL; + + rte_eth_dev_info_get(port_id, &port_info); + + mempool = mempool_find(params->rx.mempool_name); + if (mempool == NULL) + return NULL; + + rss = params->rx.rss; + if (rss) { + if ((port_info.reta_size == 0) || + (port_info.reta_size > ETH_RSS_RETA_SIZE_512)) + return NULL; + + if ((rss->n_queues == 0) || + (rss->n_queues >= LINK_RXQ_RSS_MAX)) + return NULL; + + for (i = 0; i < rss->n_queues; i++) + if (rss->queue_id[i] >= port_info.max_rx_queues) + return NULL; + } + + /** + * Resource create + */ + /* Port */ + memcpy(&port_conf, &port_conf_default, sizeof(port_conf)); + if (rss) { + port_conf.rxmode.mq_mode = ETH_MQ_RX_RSS; + port_conf.rx_adv_conf.rss_conf.rss_hf = + ETH_RSS_IPV4 | ETH_RSS_IPV6; + } + + cpu_id = (uint32_t) rte_eth_dev_socket_id(port_id); + if (cpu_id == (uint32_t) SOCKET_ID_ANY) + cpu_id = 0; + + status = rte_eth_dev_configure( + port_id, + params->rx.n_queues, + params->tx.n_queues, + &port_conf); + + if (status < 0) + return NULL; + + if (params->promiscuous) + rte_eth_promiscuous_enable(port_id); + + /* Port RX */ + for (i = 0; i < params->rx.n_queues; i++) { + status = rte_eth_rx_queue_setup( + port_id, + i, + params->rx.queue_size, + cpu_id, + NULL, + mempool->m); + + if (status < 0) + return NULL; + } + + /* Port TX */ + for (i = 0; i < params->tx.n_queues; i++) { + status = rte_eth_tx_queue_setup( + port_id, + i, + params->tx.queue_size, + cpu_id, + NULL); + + if (status < 0) + return NULL; + } + + /* Port start */ + status = rte_eth_dev_start(port_id); + if (status < 0) + return NULL; + + if (rss) { + status = rss_setup(port_id, port_info.reta_size, rss); + + if (status) { + rte_eth_dev_stop(port_id); + return NULL; + } + } + + /* Port link up */ + status = rte_eth_dev_set_link_up(port_id); + if ((status < 0) && (status != -ENOTSUP)) { + rte_eth_dev_stop(port_id); + return NULL; + } + + /* Node allocation */ + link = calloc(1, sizeof(struct link)); + if (link == NULL) { + rte_eth_dev_stop(port_id); + return NULL; + } + + /* Node fill in */ + strlcpy(link->name, name, sizeof(link->name)); + link->port_id = port_id; + link->n_rxq = params->rx.n_queues; + link->n_txq = params->tx.n_queues; + + /* Node add to list */ + TAILQ_INSERT_TAIL(&link_list, link, node); + + return link; +} + +int +link_is_up(const char *name) +{ + struct rte_eth_link link_params; + struct link *link; + + /* Check input params */ + if (name == NULL) + return 0; + + link = link_find(name); + if (link == NULL) + return 0; + + /* Resource */ + rte_eth_link_get(link->port_id, &link_params); + + return (link_params.link_status == ETH_LINK_DOWN) ? 0 : 1; +} |