DPDK  22.11.0-rc0
examples/l2fwd-event/l2fwd_common.c
/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(C) 2019 Marvell International Ltd.
*/
#include "l2fwd_common.h"
int
l2fwd_event_init_ports(struct l2fwd_resources *rsrc)
{
uint16_t nb_rxd = RTE_TEST_RX_DESC_DEFAULT;
uint16_t nb_txd = RTE_TEST_TX_DESC_DEFAULT;
struct rte_eth_conf port_conf = {
.rxmode = {
},
.txmode = {
.mq_mode = RTE_ETH_MQ_TX_NONE,
},
};
uint16_t nb_ports_available = 0;
uint16_t port_id;
int ret;
if (rsrc->event_mode) {
port_conf.rx_adv_conf.rss_conf.rss_key = NULL;
port_conf.rx_adv_conf.rss_conf.rss_hf = RTE_ETH_RSS_IP;
}
/* Initialise each port */
struct rte_eth_conf local_port_conf = port_conf;
struct rte_eth_dev_info dev_info;
struct rte_eth_rxconf rxq_conf;
struct rte_eth_txconf txq_conf;
/* skip ports that are not enabled */
if ((rsrc->enabled_port_mask & (1 << port_id)) == 0) {
printf("Skipping disabled port %u\n", port_id);
continue;
}
nb_ports_available++;
/* init port */
printf("Initializing port %u... ", port_id);
fflush(stdout);
ret = rte_eth_dev_info_get(port_id, &dev_info);
if (ret != 0)
rte_panic("Error during getting device (port %u) info: %s\n",
port_id, strerror(-ret));
local_port_conf.rx_adv_conf.rss_conf.rss_hf &=
if (local_port_conf.rx_adv_conf.rss_conf.rss_hf !=
printf("Port %u modified RSS hash function based on hardware support,"
"requested:%#"PRIx64" configured:%#"PRIx64"",
port_id,
local_port_conf.rx_adv_conf.rss_conf.rss_hf);
}
local_port_conf.txmode.offloads |=
/* Configure RX and TX queue. 8< */
ret = rte_eth_dev_configure(port_id, 1, 1, &local_port_conf);
if (ret < 0)
rte_panic("Cannot configure device: err=%d, port=%u\n",
ret, port_id);
/* >8 End of configuration RX and TX queue. */
ret = rte_eth_dev_adjust_nb_rx_tx_desc(port_id, &nb_rxd,
&nb_txd);
if (ret < 0)
rte_panic("Cannot adjust number of descriptors: err=%d, port=%u\n",
ret, port_id);
rte_eth_macaddr_get(port_id, &rsrc->eth_addr[port_id]);
/* init one RX queue */
fflush(stdout);
rxq_conf = dev_info.default_rxconf;
rxq_conf.offloads = local_port_conf.rxmode.offloads;
/* Using lcore to poll one or several ports. 8< */
ret = rte_eth_rx_queue_setup(port_id, 0, nb_rxd,
&rxq_conf,
rsrc->pktmbuf_pool);
if (ret < 0)
rte_panic("rte_eth_rx_queue_setup:err=%d, port=%u\n",
ret, port_id);
/* >8 End of using lcore to poll one or several ports. */
/* Init one TX queue on each port. 8< */
fflush(stdout);
txq_conf = dev_info.default_txconf;
txq_conf.offloads = local_port_conf.txmode.offloads;
ret = rte_eth_tx_queue_setup(port_id, 0, nb_txd,
&txq_conf);
if (ret < 0)
rte_panic("rte_eth_tx_queue_setup:err=%d, port=%u\n",
ret, port_id);
/* >8 End of init one TX queue on each port. */
printf("Port %u,MAC address: " RTE_ETHER_ADDR_PRT_FMT "\n\n",
port_id,
RTE_ETHER_ADDR_BYTES(&rsrc->eth_addr[port_id]));
}
return nb_ports_available;
}
static void
l2fwd_event_vector_array_free(struct rte_event events[], uint16_t num)
{
uint16_t i;
for (i = 0; i < num; i++) {
&events[i].vec->mbufs[events[i].vec->elem_offset],
events[i].vec->nb_elem);
events[i].vec);
}
}
static void
l2fwd_event_port_flush(uint8_t event_d_id __rte_unused, struct rte_event ev,
void *args __rte_unused)
{
l2fwd_event_vector_array_free(&ev, 1);
else
}
void
l2fwd_event_worker_cleanup(uint8_t event_d_id, uint8_t port_id,
struct rte_event events[], uint16_t nb_enq,
uint16_t nb_deq, uint8_t is_vector)
{
int i;
if (nb_deq) {
if (is_vector)
l2fwd_event_vector_array_free(events + nb_enq,
nb_deq - nb_enq);
else
for (i = nb_enq; i < nb_deq; i++)
rte_pktmbuf_free(events[i].mbuf);
for (i = 0; i < nb_deq; i++)
events[i].op = RTE_EVENT_OP_RELEASE;
rte_event_enqueue_burst(event_d_id, port_id, events, nb_deq);
}
rte_event_port_quiesce(event_d_id, port_id, l2fwd_event_port_flush,
NULL);
}