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/*-
* BSD LICENSE
*
* Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <fcntl.h>
#include <unistd.h>
#include <sys/mman.h>
#include <rte_eal.h>
#include <rte_common.h>
#include <rte_errno.h>
#include <rte_ethdev.h>
#include <rte_memzone.h>
#include <rte_ring.h>
#include <rte_string_fns.h>
#include "args.h"
#include "init.h"
#include "main.h"
#include "../include/conf.h"
static const struct rte_eth_conf port_conf = {
.rxmode = {
.split_hdr_size = 0,
.header_split = 0, /**< Header Split disabled */
.hw_ip_checksum = 0, /**< IP csum offload disabled */
.hw_vlan_filter = 0, /**< VLAN filtering disabled */
.jumbo_frame = 0, /**< Jumbo Frame disabled */
.hw_strip_crc = 1, /**< CRC stripped by hardware */
},
.txmode = {
.mq_mode = ETH_DCB_NONE,
},
};
static struct rte_eth_fc_conf fc_conf = {
.mode = RTE_FC_TX_PAUSE,
.high_water = 80 * 510 / 100,
.low_water = 60 * 510 / 100,
.pause_time = 1337,
.send_xon = 0,
};
void configure_eth_port(uint8_t port_id)
{
int ret;
rte_eth_dev_stop(port_id);
ret = rte_eth_dev_configure(port_id, 1, 1, &port_conf);
if (ret < 0)
rte_exit(EXIT_FAILURE, "Cannot configure port %u (error %d)\n",
(unsigned int) port_id, ret);
/* Initialize the port's RX queue */
ret = rte_eth_rx_queue_setup(port_id, 0, RX_DESC_PER_QUEUE,
rte_eth_dev_socket_id(port_id),
NULL,
mbuf_pool);
if (ret < 0)
rte_exit(EXIT_FAILURE,
"Failed to setup RX queue on port %u (error %d)\n",
(unsigned int) port_id, ret);
/* Initialize the port's TX queue */
ret = rte_eth_tx_queue_setup(port_id, 0, TX_DESC_PER_QUEUE,
rte_eth_dev_socket_id(port_id),
NULL);
if (ret < 0)
rte_exit(EXIT_FAILURE,
"Failed to setup TX queue on port %u (error %d)\n",
(unsigned int) port_id, ret);
/* Initialize the port's flow control */
ret = rte_eth_dev_flow_ctrl_set(port_id, &fc_conf);
if (ret < 0)
rte_exit(EXIT_FAILURE,
"Failed to setup hardware flow control on port %u (error %d)\n",
(unsigned int) port_id, ret);
/* Start the port */
ret = rte_eth_dev_start(port_id);
if (ret < 0)
rte_exit(EXIT_FAILURE, "Failed to start port %u (error %d)\n",
(unsigned int) port_id, ret);
/* Put it in promiscuous mode */
rte_eth_promiscuous_enable(port_id);
}
void
init_dpdk(void)
{
if (rte_eth_dev_count() < 2)
rte_exit(EXIT_FAILURE, "Not enough ethernet port available\n");
}
void init_ring(int lcore_id, uint8_t port_id)
{
struct rte_ring *ring;
char ring_name[RTE_RING_NAMESIZE];
snprintf(ring_name, RTE_RING_NAMESIZE,
"core%d_port%d", lcore_id, port_id);
ring = rte_ring_create(ring_name, RING_SIZE, rte_socket_id(),
RING_F_SP_ENQ | RING_F_SC_DEQ);
if (ring == NULL)
rte_exit(EXIT_FAILURE, "%s\n", rte_strerror(rte_errno));
*high_watermark = 80 * RING_SIZE / 100;
rings[lcore_id][port_id] = ring;
}
void
pair_ports(void)
{
uint8_t i, j;
/* Pair ports with their "closest neighbour" in the portmask */
for (i = 0; i < RTE_MAX_ETHPORTS; i++)
if (is_bit_set(i, portmask))
for (j = (uint8_t) (i + 1); j < RTE_MAX_ETHPORTS; j++)
if (is_bit_set(j, portmask)) {
port_pairs[i] = j;
port_pairs[j] = i;
i = j;
break;
}
}
void
setup_shared_variables(void)
{
const struct rte_memzone *qw_memzone;
qw_memzone = rte_memzone_reserve(QUOTA_WATERMARK_MEMZONE_NAME,
3 * sizeof(int), rte_socket_id(), 0);
if (qw_memzone == NULL)
rte_exit(EXIT_FAILURE, "%s\n", rte_strerror(rte_errno));
quota = qw_memzone->addr;
low_watermark = (unsigned int *) qw_memzone->addr + 1;
high_watermark = (unsigned int *) qw_memzone->addr + 2;
}
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