#include <stdlib.h>
#include <string.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;
}
struct link *
link_next(struct link *link)
{
return (link == NULL) ? TAILQ_FIRST(&link_list) : TAILQ_NEXT(link, node);
}
.rxmode = {
},
.rss_conf = {
.rss_key = NULL,
.rss_key_len = 40,
.rss_hf = 0,
},
},
.txmode = {
},
.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 link_params_rss *rss)
{
uint32_t i;
int status;
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_conf,
reta_size);
return status;
}
struct link *
link_create(const char *name, struct link_params *params)
{
struct link *link;
struct link_params_rss *rss;
struct mempool *mempool;
uint32_t cpu_id, i;
int status;
uint16_t port_id;
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) {
&port_id);
if (status)
return NULL;
} else
return NULL;
return NULL;
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 > RTE_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;
}
memcpy(&port_conf, &port_conf_default, sizeof(port_conf));
if (rss) {
port_conf.rx_adv_conf.rss_conf.rss_hf =
(RTE_ETH_RSS_IP | RTE_ETH_RSS_TCP | RTE_ETH_RSS_UDP) &
port_info.flow_type_rss_offloads;
}
cpu_id = 0;
port_id,
params->rx.n_queues,
params->tx.n_queues,
&port_conf);
if (status < 0)
return NULL;
if (params->promiscuous) {
if (status != 0)
return NULL;
}
for (i = 0; i < params->rx.n_queues; i++) {
port_id,
i,
params->rx.queue_size,
cpu_id,
NULL,
mempool->m);
if (status < 0)
return NULL;
}
for (i = 0; i < params->tx.n_queues; i++) {
port_id,
i,
params->tx.queue_size,
cpu_id,
NULL);
if (status < 0)
return NULL;
}
if (status < 0)
return NULL;
if (rss) {
status = rss_setup(port_id, port_info.reta_size, rss);
if (status) {
return NULL;
}
}
if ((status < 0) && (status != -ENOTSUP)) {
return NULL;
}
link = calloc(1, sizeof(struct link));
if (link == NULL) {
return NULL;
}
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;
TAILQ_INSERT_TAIL(&link_list, link, node);
return link;
}
int
link_is_up(const char *name)
{
struct link *link;
if (name == NULL)
return 0;
link = link_find(name);
if (link == NULL)
return 0;
return 0;
}