781 lines
20 KiB
C
781 lines
20 KiB
C
/*-
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* BSD LICENSE
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*
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* Copyright(c) 2015 Intel Corporation. All rights reserved.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* This application is a simple Layer 2 PTP v2 client. It shows delta values
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* which are used to synchronize the PHC clock. if the "-T 1" parameter is
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* passed to the application the Linux kernel clock is also synchronized.
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*/
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#include <stdint.h>
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#include <inttypes.h>
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#include <rte_eal.h>
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#include <rte_ethdev.h>
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#include <rte_cycles.h>
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#include <rte_lcore.h>
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#include <rte_mbuf.h>
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#include <rte_ip.h>
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#include <limits.h>
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#include <sys/time.h>
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#include <getopt.h>
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#define RX_RING_SIZE 128
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#define TX_RING_SIZE 512
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#define NUM_MBUFS 8191
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#define MBUF_CACHE_SIZE 250
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/* Values for the PTP messageType field. */
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#define SYNC 0x0
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#define DELAY_REQ 0x1
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#define PDELAY_REQ 0x2
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#define PDELAY_RESP 0x3
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#define FOLLOW_UP 0x8
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#define DELAY_RESP 0x9
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#define PDELAY_RESP_FOLLOW_UP 0xA
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#define ANNOUNCE 0xB
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#define SIGNALING 0xC
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#define MANAGEMENT 0xD
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#define NSEC_PER_SEC 1000000000L
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#define KERNEL_TIME_ADJUST_LIMIT 20000
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#define PTP_PROTOCOL 0x88F7
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struct rte_mempool *mbuf_pool;
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uint32_t ptp_enabled_port_mask;
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uint8_t ptp_enabled_port_nb;
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static uint8_t ptp_enabled_ports[RTE_MAX_ETHPORTS];
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static const struct rte_eth_conf port_conf_default = {
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.rxmode = { .max_rx_pkt_len = ETHER_MAX_LEN }
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};
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static const struct ether_addr ether_multicast = {
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.addr_bytes = {0x01, 0x1b, 0x19, 0x0, 0x0, 0x0}
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};
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/* Structs used for PTP handling. */
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struct tstamp {
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uint16_t sec_msb;
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uint32_t sec_lsb;
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uint32_t ns;
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} __attribute__((packed));
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struct clock_id {
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uint8_t id[8];
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};
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struct port_id {
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struct clock_id clock_id;
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uint16_t port_number;
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} __attribute__((packed));
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struct ptp_header {
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uint8_t msg_type;
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uint8_t ver;
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uint16_t message_length;
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uint8_t domain_number;
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uint8_t reserved1;
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uint8_t flag_field[2];
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int64_t correction;
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uint32_t reserved2;
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struct port_id source_port_id;
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uint16_t seq_id;
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uint8_t control;
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int8_t log_message_interval;
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} __attribute__((packed));
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struct sync_msg {
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struct ptp_header hdr;
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struct tstamp origin_tstamp;
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} __attribute__((packed));
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struct follow_up_msg {
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struct ptp_header hdr;
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struct tstamp precise_origin_tstamp;
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uint8_t suffix[0];
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} __attribute__((packed));
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struct delay_req_msg {
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struct ptp_header hdr;
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struct tstamp origin_tstamp;
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} __attribute__((packed));
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struct delay_resp_msg {
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struct ptp_header hdr;
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struct tstamp rx_tstamp;
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struct port_id req_port_id;
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uint8_t suffix[0];
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} __attribute__((packed));
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struct ptp_message {
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union {
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struct ptp_header header;
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struct sync_msg sync;
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struct delay_req_msg delay_req;
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struct follow_up_msg follow_up;
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struct delay_resp_msg delay_resp;
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} __attribute__((packed));
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};
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struct ptpv2_data_slave_ordinary {
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struct rte_mbuf *m;
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struct timespec tstamp1;
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struct timespec tstamp2;
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struct timespec tstamp3;
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struct timespec tstamp4;
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struct clock_id client_clock_id;
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struct clock_id master_clock_id;
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struct timeval new_adj;
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int64_t delta;
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uint8_t portid;
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uint16_t seqID_SYNC;
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uint16_t seqID_FOLLOWUP;
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uint8_t ptpset;
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uint8_t kernel_time_set;
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uint8_t current_ptp_port;
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};
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static struct ptpv2_data_slave_ordinary ptp_data;
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static inline uint64_t timespec64_to_ns(const struct timespec *ts)
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{
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return ((uint64_t) ts->tv_sec * NSEC_PER_SEC) + ts->tv_nsec;
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}
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static struct timeval
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ns_to_timeval(int64_t nsec)
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{
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struct timespec t_spec = {0, 0};
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struct timeval t_eval = {0, 0};
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int32_t rem;
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if (nsec == 0)
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return t_eval;
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rem = nsec % NSEC_PER_SEC;
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t_spec.tv_sec = nsec / NSEC_PER_SEC;
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if (rem < 0) {
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t_spec.tv_sec--;
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rem += NSEC_PER_SEC;
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}
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t_spec.tv_nsec = rem;
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t_eval.tv_sec = t_spec.tv_sec;
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t_eval.tv_usec = t_spec.tv_nsec / 1000;
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return t_eval;
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}
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/*
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* Initializes a given port using global settings and with the RX buffers
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* coming from the mbuf_pool passed as a parameter.
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*/
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static inline int
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port_init(uint8_t port, struct rte_mempool *mbuf_pool)
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{
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struct rte_eth_dev_info dev_info;
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struct rte_eth_conf port_conf = port_conf_default;
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const uint16_t rx_rings = 1;
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const uint16_t tx_rings = 1;
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int retval;
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uint16_t q;
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if (port >= rte_eth_dev_count())
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return -1;
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/* Configure the Ethernet device. */
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retval = rte_eth_dev_configure(port, rx_rings, tx_rings, &port_conf);
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if (retval != 0)
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return retval;
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/* Allocate and set up 1 RX queue per Ethernet port. */
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for (q = 0; q < rx_rings; q++) {
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retval = rte_eth_rx_queue_setup(port, q, RX_RING_SIZE,
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rte_eth_dev_socket_id(port), NULL, mbuf_pool);
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if (retval < 0)
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return retval;
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}
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/* Allocate and set up 1 TX queue per Ethernet port. */
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for (q = 0; q < tx_rings; q++) {
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/* Setup txq_flags */
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struct rte_eth_txconf *txconf;
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rte_eth_dev_info_get(q, &dev_info);
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txconf = &dev_info.default_txconf;
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txconf->txq_flags = 0;
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retval = rte_eth_tx_queue_setup(port, q, TX_RING_SIZE,
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rte_eth_dev_socket_id(port), txconf);
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if (retval < 0)
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return retval;
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}
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/* Start the Ethernet port. */
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retval = rte_eth_dev_start(port);
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if (retval < 0)
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return retval;
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/* Enable timesync timestamping for the Ethernet device */
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rte_eth_timesync_enable(port);
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/* Enable RX in promiscuous mode for the Ethernet device. */
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rte_eth_promiscuous_enable(port);
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return 0;
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}
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static void
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print_clock_info(struct ptpv2_data_slave_ordinary *ptp_data)
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{
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int64_t nsec;
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struct timespec net_time, sys_time;
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printf("Master Clock id: %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x",
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ptp_data->master_clock_id.id[0],
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ptp_data->master_clock_id.id[1],
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ptp_data->master_clock_id.id[2],
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ptp_data->master_clock_id.id[3],
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ptp_data->master_clock_id.id[4],
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ptp_data->master_clock_id.id[5],
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ptp_data->master_clock_id.id[6],
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ptp_data->master_clock_id.id[7]);
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printf("\nT2 - Slave Clock. %lds %ldns",
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(ptp_data->tstamp2.tv_sec),
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(ptp_data->tstamp2.tv_nsec));
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printf("\nT1 - Master Clock. %lds %ldns ",
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ptp_data->tstamp1.tv_sec,
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(ptp_data->tstamp1.tv_nsec));
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printf("\nT3 - Slave Clock. %lds %ldns",
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ptp_data->tstamp3.tv_sec,
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(ptp_data->tstamp3.tv_nsec));
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printf("\nT4 - Master Clock. %lds %ldns ",
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ptp_data->tstamp4.tv_sec,
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(ptp_data->tstamp4.tv_nsec));
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printf("\nDelta between master and slave clocks:%"PRId64"ns\n",
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ptp_data->delta);
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clock_gettime(CLOCK_REALTIME, &sys_time);
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rte_eth_timesync_read_time(ptp_data->current_ptp_port, &net_time);
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time_t ts = net_time.tv_sec;
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printf("\n\nComparison between Linux kernel Time and PTP:");
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printf("\nCurrent PTP Time: %.24s %.9ld ns",
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ctime(&ts), net_time.tv_nsec);
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nsec = (int64_t)timespec64_to_ns(&net_time) -
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(int64_t)timespec64_to_ns(&sys_time);
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ptp_data->new_adj = ns_to_timeval(nsec);
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gettimeofday(&ptp_data->new_adj, NULL);
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time_t tp = ptp_data->new_adj.tv_sec;
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printf("\nCurrent SYS Time: %.24s %.6ld ns",
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ctime(&tp), ptp_data->new_adj.tv_usec);
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printf("\nDelta between PTP and Linux Kernel time:%"PRId64"ns\n",
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nsec);
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printf("[Ctrl+C to quit]\n");
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/* Clear screen and put cursor in column 1, row 1 */
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printf("\033[2J\033[1;1H");
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}
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static int64_t
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delta_eval(struct ptpv2_data_slave_ordinary *ptp_data)
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{
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int64_t delta;
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uint64_t t1 = 0;
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uint64_t t2 = 0;
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uint64_t t3 = 0;
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uint64_t t4 = 0;
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t1 = timespec64_to_ns(&ptp_data->tstamp1);
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t2 = timespec64_to_ns(&ptp_data->tstamp2);
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t3 = timespec64_to_ns(&ptp_data->tstamp3);
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t4 = timespec64_to_ns(&ptp_data->tstamp4);
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delta = -((int64_t)((t2 - t1) - (t4 - t3))) / 2;
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return delta;
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}
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/*
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* Parse the PTP SYNC message.
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*/
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static void
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parse_sync(struct ptpv2_data_slave_ordinary *ptp_data, uint16_t rx_tstamp_idx)
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{
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struct ptp_header *ptp_hdr;
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ptp_hdr = (struct ptp_header *)(rte_pktmbuf_mtod(ptp_data->m, char *)
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+ sizeof(struct ether_hdr));
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ptp_data->seqID_SYNC = rte_be_to_cpu_16(ptp_hdr->seq_id);
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if (ptp_data->ptpset == 0) {
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rte_memcpy(&ptp_data->master_clock_id,
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&ptp_hdr->source_port_id.clock_id,
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sizeof(struct clock_id));
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ptp_data->ptpset = 1;
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}
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if (memcmp(&ptp_hdr->source_port_id.clock_id,
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&ptp_hdr->source_port_id.clock_id,
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sizeof(struct clock_id)) == 0) {
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if (ptp_data->ptpset == 1)
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rte_eth_timesync_read_rx_timestamp(ptp_data->portid,
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&ptp_data->tstamp2, rx_tstamp_idx);
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}
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}
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/*
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* Parse the PTP FOLLOWUP message and send DELAY_REQ to the master clock.
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*/
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static void
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parse_fup(struct ptpv2_data_slave_ordinary *ptp_data)
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{
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struct ether_hdr *eth_hdr;
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struct ptp_header *ptp_hdr;
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struct clock_id *client_clkid;
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struct ptp_message *ptp_msg;
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struct rte_mbuf *created_pkt;
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struct tstamp *origin_tstamp;
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struct ether_addr eth_multicast = ether_multicast;
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size_t pkt_size;
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int wait_us;
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struct rte_mbuf *m = ptp_data->m;
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eth_hdr = rte_pktmbuf_mtod(m, struct ether_hdr *);
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ptp_hdr = (struct ptp_header *)(rte_pktmbuf_mtod(m, char *)
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+ sizeof(struct ether_hdr));
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if (memcmp(&ptp_data->master_clock_id,
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&ptp_hdr->source_port_id.clock_id,
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sizeof(struct clock_id)) != 0)
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return;
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ptp_data->seqID_FOLLOWUP = rte_be_to_cpu_16(ptp_hdr->seq_id);
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ptp_msg = (struct ptp_message *) (rte_pktmbuf_mtod(m, char *) +
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sizeof(struct ether_hdr));
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origin_tstamp = &ptp_msg->follow_up.precise_origin_tstamp;
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ptp_data->tstamp1.tv_nsec = ntohl(origin_tstamp->ns);
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ptp_data->tstamp1.tv_sec =
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((uint64_t)ntohl(origin_tstamp->sec_lsb)) |
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(((uint64_t)ntohs(origin_tstamp->sec_msb)) << 32);
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if (ptp_data->seqID_FOLLOWUP == ptp_data->seqID_SYNC) {
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created_pkt = rte_pktmbuf_alloc(mbuf_pool);
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pkt_size = sizeof(struct ether_hdr) +
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sizeof(struct ptp_message);
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created_pkt->data_len = pkt_size;
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created_pkt->pkt_len = pkt_size;
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eth_hdr = rte_pktmbuf_mtod(created_pkt, struct ether_hdr *);
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rte_eth_macaddr_get(ptp_data->portid, ð_hdr->s_addr);
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/* Set multicast address 01-1B-19-00-00-00. */
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ether_addr_copy(ð_multicast, ð_hdr->d_addr);
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eth_hdr->ether_type = htons(PTP_PROTOCOL);
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ptp_msg = (struct ptp_message *)
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(rte_pktmbuf_mtod(created_pkt, char *) +
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sizeof(struct ether_hdr));
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ptp_msg->delay_req.hdr.seq_id = htons(ptp_data->seqID_SYNC);
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ptp_msg->delay_req.hdr.msg_type = DELAY_REQ;
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ptp_msg->delay_req.hdr.ver = 2;
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ptp_msg->delay_req.hdr.control = 1;
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ptp_msg->delay_req.hdr.log_message_interval = 127;
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/* Set up clock id. */
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client_clkid =
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&ptp_msg->delay_req.hdr.source_port_id.clock_id;
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client_clkid->id[0] = eth_hdr->s_addr.addr_bytes[0];
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client_clkid->id[1] = eth_hdr->s_addr.addr_bytes[1];
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client_clkid->id[2] = eth_hdr->s_addr.addr_bytes[2];
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client_clkid->id[3] = 0xFF;
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client_clkid->id[4] = 0xFE;
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client_clkid->id[5] = eth_hdr->s_addr.addr_bytes[3];
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client_clkid->id[6] = eth_hdr->s_addr.addr_bytes[4];
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client_clkid->id[7] = eth_hdr->s_addr.addr_bytes[5];
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rte_memcpy(&ptp_data->client_clock_id,
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client_clkid,
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sizeof(struct clock_id));
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/* Enable flag for hardware timestamping. */
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created_pkt->ol_flags |= PKT_TX_IEEE1588_TMST;
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/*Read value from NIC to prevent latching with old value. */
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rte_eth_timesync_read_tx_timestamp(ptp_data->portid,
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&ptp_data->tstamp3);
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/* Transmit the packet. */
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rte_eth_tx_burst(ptp_data->portid, 0, &created_pkt, 1);
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wait_us = 0;
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ptp_data->tstamp3.tv_nsec = 0;
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ptp_data->tstamp3.tv_sec = 0;
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/* Wait at least 1 us to read TX timestamp. */
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while ((rte_eth_timesync_read_tx_timestamp(ptp_data->portid,
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&ptp_data->tstamp3) < 0) && (wait_us < 1000)) {
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rte_delay_us(1);
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wait_us++;
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}
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}
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}
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/*
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* Update the kernel time with the difference between it and the current NIC
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* time.
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*/
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static inline void
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update_kernel_time(void)
|
|
{
|
|
int64_t nsec;
|
|
struct timespec net_time, sys_time;
|
|
|
|
clock_gettime(CLOCK_REALTIME, &sys_time);
|
|
rte_eth_timesync_read_time(ptp_data.current_ptp_port, &net_time);
|
|
|
|
nsec = (int64_t)timespec64_to_ns(&net_time) -
|
|
(int64_t)timespec64_to_ns(&sys_time);
|
|
|
|
ptp_data.new_adj = ns_to_timeval(nsec);
|
|
|
|
/*
|
|
* If difference between kernel time and system time in NIC is too big
|
|
* (more than +/- 20 microseconds), use clock_settime to set directly
|
|
* the kernel time, as adjtime is better for small adjustments (takes
|
|
* longer to adjust the time).
|
|
*/
|
|
|
|
if (nsec > KERNEL_TIME_ADJUST_LIMIT || nsec < -KERNEL_TIME_ADJUST_LIMIT)
|
|
clock_settime(CLOCK_REALTIME, &net_time);
|
|
else
|
|
adjtime(&ptp_data.new_adj, 0);
|
|
|
|
|
|
}
|
|
|
|
/*
|
|
* Parse the DELAY_RESP message.
|
|
*/
|
|
static void
|
|
parse_drsp(struct ptpv2_data_slave_ordinary *ptp_data)
|
|
{
|
|
struct rte_mbuf *m = ptp_data->m;
|
|
struct ptp_message *ptp_msg;
|
|
struct tstamp *rx_tstamp;
|
|
uint16_t seq_id;
|
|
|
|
ptp_msg = (struct ptp_message *) (rte_pktmbuf_mtod(m, char *) +
|
|
sizeof(struct ether_hdr));
|
|
seq_id = rte_be_to_cpu_16(ptp_msg->delay_resp.hdr.seq_id);
|
|
if (memcmp(&ptp_data->client_clock_id,
|
|
&ptp_msg->delay_resp.req_port_id.clock_id,
|
|
sizeof(struct clock_id)) == 0) {
|
|
if (seq_id == ptp_data->seqID_FOLLOWUP) {
|
|
rx_tstamp = &ptp_msg->delay_resp.rx_tstamp;
|
|
ptp_data->tstamp4.tv_nsec = ntohl(rx_tstamp->ns);
|
|
ptp_data->tstamp4.tv_sec =
|
|
((uint64_t)ntohl(rx_tstamp->sec_lsb)) |
|
|
(((uint64_t)ntohs(rx_tstamp->sec_msb)) << 32);
|
|
|
|
/* Evaluate the delta for adjustment. */
|
|
ptp_data->delta = delta_eval(ptp_data);
|
|
|
|
rte_eth_timesync_adjust_time(ptp_data->portid,
|
|
ptp_data->delta);
|
|
|
|
ptp_data->current_ptp_port = ptp_data->portid;
|
|
|
|
/* Update kernel time if enabled in app parameters. */
|
|
if (ptp_data->kernel_time_set == 1)
|
|
update_kernel_time();
|
|
|
|
|
|
|
|
}
|
|
}
|
|
}
|
|
|
|
/* This function processes PTP packets, implementing slave PTP IEEE1588 L2
|
|
* functionality.
|
|
*/
|
|
static void
|
|
parse_ptp_frames(uint8_t portid, struct rte_mbuf *m) {
|
|
struct ptp_header *ptp_hdr;
|
|
struct ether_hdr *eth_hdr;
|
|
uint16_t eth_type;
|
|
|
|
eth_hdr = rte_pktmbuf_mtod(m, struct ether_hdr *);
|
|
eth_type = rte_be_to_cpu_16(eth_hdr->ether_type);
|
|
|
|
if (eth_type == PTP_PROTOCOL) {
|
|
ptp_data.m = m;
|
|
ptp_data.portid = portid;
|
|
ptp_hdr = (struct ptp_header *)(rte_pktmbuf_mtod(m, char *)
|
|
+ sizeof(struct ether_hdr));
|
|
|
|
switch (ptp_hdr->msg_type) {
|
|
case SYNC:
|
|
parse_sync(&ptp_data, m->timesync);
|
|
break;
|
|
case FOLLOW_UP:
|
|
parse_fup(&ptp_data);
|
|
break;
|
|
case DELAY_RESP:
|
|
parse_drsp(&ptp_data);
|
|
print_clock_info(&ptp_data);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* The lcore main. This is the main thread that does the work, reading from an
|
|
* input port and writing to an output port.
|
|
*/
|
|
static __attribute__((noreturn)) void
|
|
lcore_main(void)
|
|
{
|
|
uint8_t portid;
|
|
unsigned nb_rx;
|
|
struct rte_mbuf *m;
|
|
|
|
/*
|
|
* Check that the port is on the same NUMA node as the polling thread
|
|
* for best performance.
|
|
*/
|
|
printf("\nCore %u Waiting for SYNC packets. [Ctrl+C to quit]\n",
|
|
rte_lcore_id());
|
|
|
|
/* Run until the application is quit or killed. */
|
|
|
|
while (1) {
|
|
/* Read packet from RX queues. */
|
|
for (portid = 0; portid < ptp_enabled_port_nb; portid++) {
|
|
|
|
portid = ptp_enabled_ports[portid];
|
|
nb_rx = rte_eth_rx_burst(portid, 0, &m, 1);
|
|
|
|
if (likely(nb_rx == 0))
|
|
continue;
|
|
|
|
if (m->ol_flags & PKT_RX_IEEE1588_PTP)
|
|
parse_ptp_frames(portid, m);
|
|
|
|
rte_pktmbuf_free(m);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
print_usage(const char *prgname)
|
|
{
|
|
printf("%s [EAL options] -- -p PORTMASK -T VALUE\n"
|
|
" -T VALUE: 0 - Disable, 1 - Enable Linux Clock"
|
|
" Synchronization (0 default)\n"
|
|
" -p PORTMASK: hexadecimal bitmask of ports to configure\n",
|
|
prgname);
|
|
}
|
|
|
|
static int
|
|
ptp_parse_portmask(const char *portmask)
|
|
{
|
|
char *end = NULL;
|
|
unsigned long pm;
|
|
|
|
/* Parse the hexadecimal string. */
|
|
pm = strtoul(portmask, &end, 16);
|
|
|
|
if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
|
|
return -1;
|
|
|
|
if (pm == 0)
|
|
return -1;
|
|
|
|
return pm;
|
|
}
|
|
|
|
static int
|
|
parse_ptp_kernel(const char *param)
|
|
{
|
|
char *end = NULL;
|
|
unsigned long pm;
|
|
|
|
/* Parse the hexadecimal string. */
|
|
pm = strtoul(param, &end, 16);
|
|
|
|
if ((param[0] == '\0') || (end == NULL) || (*end != '\0'))
|
|
return -1;
|
|
if (pm == 0)
|
|
return 0;
|
|
|
|
return 1;
|
|
}
|
|
|
|
/* Parse the commandline arguments. */
|
|
static int
|
|
ptp_parse_args(int argc, char **argv)
|
|
{
|
|
int opt, ret;
|
|
char **argvopt;
|
|
int option_index;
|
|
char *prgname = argv[0];
|
|
static struct option lgopts[] = { {NULL, 0, 0, 0} };
|
|
|
|
argvopt = argv;
|
|
|
|
while ((opt = getopt_long(argc, argvopt, "p:T:",
|
|
lgopts, &option_index)) != EOF) {
|
|
|
|
switch (opt) {
|
|
|
|
/* Portmask. */
|
|
case 'p':
|
|
ptp_enabled_port_mask = ptp_parse_portmask(optarg);
|
|
if (ptp_enabled_port_mask == 0) {
|
|
printf("invalid portmask\n");
|
|
print_usage(prgname);
|
|
return -1;
|
|
}
|
|
break;
|
|
/* Time synchronization. */
|
|
case 'T':
|
|
ret = parse_ptp_kernel(optarg);
|
|
if (ret < 0) {
|
|
print_usage(prgname);
|
|
return -1;
|
|
}
|
|
|
|
ptp_data.kernel_time_set = ret;
|
|
break;
|
|
|
|
default:
|
|
print_usage(prgname);
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
argv[optind-1] = prgname;
|
|
|
|
optind = 0; /* Reset getopt lib. */
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* The main function, which does initialization and calls the per-lcore
|
|
* functions.
|
|
*/
|
|
int
|
|
main(int argc, char *argv[])
|
|
{
|
|
unsigned nb_ports;
|
|
|
|
uint8_t portid;
|
|
|
|
/* Initialize the Environment Abstraction Layer (EAL). */
|
|
int ret = rte_eal_init(argc, argv);
|
|
|
|
if (ret < 0)
|
|
rte_exit(EXIT_FAILURE, "Error with EAL initialization\n");
|
|
|
|
memset(&ptp_data, '\0', sizeof(struct ptpv2_data_slave_ordinary));
|
|
|
|
argc -= ret;
|
|
argv += ret;
|
|
|
|
ret = ptp_parse_args(argc, argv);
|
|
if (ret < 0)
|
|
rte_exit(EXIT_FAILURE, "Error with PTP initialization\n");
|
|
|
|
/* Check that there is an even number of ports to send/receive on. */
|
|
nb_ports = rte_eth_dev_count();
|
|
|
|
/* Creates a new mempool in memory to hold the mbufs. */
|
|
mbuf_pool = rte_pktmbuf_pool_create("MBUF_POOL", NUM_MBUFS * nb_ports,
|
|
MBUF_CACHE_SIZE, 0, RTE_MBUF_DEFAULT_BUF_SIZE, rte_socket_id());
|
|
|
|
if (mbuf_pool == NULL)
|
|
rte_exit(EXIT_FAILURE, "Cannot create mbuf pool\n");
|
|
|
|
/* Initialize all ports. */
|
|
for (portid = 0; portid < nb_ports; portid++) {
|
|
if ((ptp_enabled_port_mask & (1 << portid)) != 0) {
|
|
if (port_init(portid, mbuf_pool) == 0) {
|
|
ptp_enabled_ports[ptp_enabled_port_nb] = portid;
|
|
ptp_enabled_port_nb++;
|
|
} else {
|
|
rte_exit(EXIT_FAILURE,
|
|
"Cannot init port %"PRIu8 "\n",
|
|
portid);
|
|
}
|
|
} else
|
|
printf("Skipping disabled port %u\n", portid);
|
|
}
|
|
|
|
if (ptp_enabled_port_nb == 0) {
|
|
rte_exit(EXIT_FAILURE,
|
|
"All available ports are disabled."
|
|
" Please set portmask.\n");
|
|
}
|
|
|
|
if (rte_lcore_count() > 1)
|
|
printf("\nWARNING: Too many lcores enabled. Only 1 used.\n");
|
|
|
|
/* Call lcore_main on the master core only. */
|
|
lcore_main();
|
|
|
|
return 0;
|
|
}
|