e35d434667
The port parameter in mbuf should be set with an input port id because DPDK apps may use it to know where each packet came from. Signed-off-by: Saori Usami <susami@igel.co.jp> Acked-by: Thomas Monjalon <thomas.monjalon@6wind.com>
784 lines
20 KiB
C
784 lines
20 KiB
C
/*-
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* BSD LICENSE
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*
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* Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
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* Copyright(c) 2014 6WIND S.A.
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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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#include <time.h>
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#include <rte_mbuf.h>
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#include <rte_ethdev.h>
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#include <rte_malloc.h>
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#include <rte_memcpy.h>
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#include <rte_string_fns.h>
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#include <rte_cycles.h>
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#include <rte_kvargs.h>
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#include <rte_dev.h>
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#include <net/if.h>
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#include <pcap.h>
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#define RTE_ETH_PCAP_SNAPSHOT_LEN 65535
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#define RTE_ETH_PCAP_SNAPLEN 4096
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#define RTE_ETH_PCAP_PROMISC 1
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#define RTE_ETH_PCAP_TIMEOUT -1
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#define ETH_PCAP_RX_PCAP_ARG "rx_pcap"
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#define ETH_PCAP_TX_PCAP_ARG "tx_pcap"
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#define ETH_PCAP_RX_IFACE_ARG "rx_iface"
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#define ETH_PCAP_TX_IFACE_ARG "tx_iface"
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#define ETH_PCAP_IFACE_ARG "iface"
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static char errbuf[PCAP_ERRBUF_SIZE];
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static struct timeval start_time;
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static uint64_t start_cycles;
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static uint64_t hz;
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struct pcap_rx_queue {
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pcap_t *pcap;
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uint8_t in_port;
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struct rte_mempool *mb_pool;
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volatile unsigned long rx_pkts;
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volatile unsigned long err_pkts;
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};
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struct pcap_tx_queue {
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pcap_dumper_t *dumper;
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pcap_t *pcap;
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volatile unsigned long tx_pkts;
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volatile unsigned long err_pkts;
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};
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struct rx_pcaps {
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unsigned num_of_rx;
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pcap_t *pcaps[RTE_PMD_RING_MAX_RX_RINGS];
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};
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struct tx_pcaps {
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unsigned num_of_tx;
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pcap_dumper_t *dumpers[RTE_PMD_RING_MAX_TX_RINGS];
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pcap_t *pcaps[RTE_PMD_RING_MAX_RX_RINGS];
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};
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struct pmd_internals {
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unsigned nb_rx_queues;
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unsigned nb_tx_queues;
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int if_index;
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struct pcap_rx_queue rx_queue[RTE_PMD_RING_MAX_RX_RINGS];
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struct pcap_tx_queue tx_queue[RTE_PMD_RING_MAX_TX_RINGS];
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};
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const char *valid_arguments[] = {
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ETH_PCAP_RX_PCAP_ARG,
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ETH_PCAP_TX_PCAP_ARG,
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ETH_PCAP_RX_IFACE_ARG,
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ETH_PCAP_TX_IFACE_ARG,
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ETH_PCAP_IFACE_ARG,
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NULL
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};
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static struct ether_addr eth_addr = { .addr_bytes = { 0, 0, 0, 0x1, 0x2, 0x3 } };
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static const char *drivername = "Pcap PMD";
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static struct rte_eth_link pmd_link = {
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.link_speed = 10000,
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.link_duplex = ETH_LINK_FULL_DUPLEX,
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.link_status = 0
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};
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static uint16_t
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eth_pcap_rx(void *queue,
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struct rte_mbuf **bufs,
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uint16_t nb_pkts)
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{
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unsigned i;
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struct pcap_pkthdr header;
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const u_char *packet;
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struct rte_mbuf *mbuf;
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struct pcap_rx_queue *pcap_q = queue;
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struct rte_pktmbuf_pool_private *mbp_priv;
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uint16_t num_rx = 0;
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uint16_t buf_size;
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if (unlikely(pcap_q->pcap == NULL || nb_pkts == 0))
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return 0;
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/* Reads the given number of packets from the pcap file one by one
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* and copies the packet data into a newly allocated mbuf to return.
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*/
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for (i = 0; i < nb_pkts; i++) {
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/* Get the next PCAP packet */
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packet = pcap_next(pcap_q->pcap, &header);
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if (unlikely(packet == NULL))
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break;
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else
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mbuf = rte_pktmbuf_alloc(pcap_q->mb_pool);
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if (unlikely(mbuf == NULL))
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break;
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/* Now get the space available for data in the mbuf */
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mbp_priv = rte_mempool_get_priv(pcap_q->mb_pool);
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buf_size = (uint16_t) (mbp_priv->mbuf_data_room_size -
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RTE_PKTMBUF_HEADROOM);
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if (header.len <= buf_size) {
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/* pcap packet will fit in the mbuf, go ahead and copy */
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rte_memcpy(rte_pktmbuf_mtod(mbuf, void *), packet,
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header.len);
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mbuf->data_len = (uint16_t)header.len;
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mbuf->pkt_len = mbuf->data_len;
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mbuf->port = pcap_q->in_port;
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bufs[num_rx] = mbuf;
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num_rx++;
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} else {
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/* pcap packet will not fit in the mbuf, so drop packet */
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RTE_LOG(ERR, PMD,
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"PCAP packet %d bytes will not fit in mbuf (%d bytes)\n",
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header.len, buf_size);
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rte_pktmbuf_free(mbuf);
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}
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}
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pcap_q->rx_pkts += num_rx;
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return num_rx;
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}
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static inline void
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calculate_timestamp(struct timeval *ts) {
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uint64_t cycles;
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struct timeval cur_time;
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cycles = rte_get_timer_cycles() - start_cycles;
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cur_time.tv_sec = cycles / hz;
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cur_time.tv_usec = (cycles % hz) * 10e6 / hz;
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timeradd(&start_time, &cur_time, ts);
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}
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/*
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* Callback to handle writing packets to a pcap file.
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*/
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static uint16_t
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eth_pcap_tx_dumper(void *queue,
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struct rte_mbuf **bufs,
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uint16_t nb_pkts)
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{
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unsigned i;
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struct rte_mbuf *mbuf;
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struct pcap_tx_queue *dumper_q = queue;
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uint16_t num_tx = 0;
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struct pcap_pkthdr header;
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if (dumper_q->dumper == NULL || nb_pkts == 0)
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return 0;
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/* writes the nb_pkts packets to the previously opened pcap file dumper */
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for (i = 0; i < nb_pkts; i++) {
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mbuf = bufs[i];
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calculate_timestamp(&header.ts);
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header.len = mbuf->data_len;
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header.caplen = header.len;
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pcap_dump((u_char *)dumper_q->dumper, &header,
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rte_pktmbuf_mtod(mbuf, void*));
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rte_pktmbuf_free(mbuf);
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num_tx++;
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}
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/*
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* Since there's no place to hook a callback when the forwarding
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* process stops and to make sure the pcap file is actually written,
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* we flush the pcap dumper within each burst.
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*/
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pcap_dump_flush(dumper_q->dumper);
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dumper_q->tx_pkts += num_tx;
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dumper_q->err_pkts += nb_pkts - num_tx;
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return num_tx;
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}
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/*
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* Callback to handle sending packets through a real NIC.
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*/
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static uint16_t
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eth_pcap_tx(void *queue,
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struct rte_mbuf **bufs,
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uint16_t nb_pkts)
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{
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unsigned i;
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int ret;
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struct rte_mbuf *mbuf;
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struct pcap_tx_queue *tx_queue = queue;
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uint16_t num_tx = 0;
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if (unlikely(nb_pkts == 0 || tx_queue->pcap == NULL))
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return 0;
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for (i = 0; i < nb_pkts; i++) {
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mbuf = bufs[i];
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ret = pcap_sendpacket(tx_queue->pcap,
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rte_pktmbuf_mtod(mbuf, u_char *),
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mbuf->data_len);
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if (unlikely(ret != 0))
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break;
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num_tx++;
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rte_pktmbuf_free(mbuf);
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}
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tx_queue->tx_pkts += num_tx;
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tx_queue->err_pkts += nb_pkts - num_tx;
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return num_tx;
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}
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static int
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eth_dev_start(struct rte_eth_dev *dev)
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{
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dev->data->dev_link.link_status = 1;
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return 0;
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}
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/*
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* This function gets called when the current port gets stopped.
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* Is the only place for us to close all the tx streams dumpers.
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* If not called the dumpers will be flushed within each tx burst.
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*/
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static void
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eth_dev_stop(struct rte_eth_dev *dev)
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{
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unsigned i;
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pcap_dumper_t *dumper;
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pcap_t *pcap;
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struct pmd_internals *internals = dev->data->dev_private;
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for (i = 0; i < internals->nb_tx_queues; i++) {
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dumper = internals->tx_queue[i].dumper;
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if(dumper != NULL)
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pcap_dump_close(dumper);
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pcap = internals->tx_queue[i].pcap;
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if(pcap != NULL)
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pcap_close(pcap);
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}
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dev->data->dev_link.link_status = 0;
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}
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static int
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eth_dev_configure(struct rte_eth_dev *dev __rte_unused)
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{
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return 0;
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}
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static void
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eth_dev_info(struct rte_eth_dev *dev,
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struct rte_eth_dev_info *dev_info)
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{
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struct pmd_internals *internals = dev->data->dev_private;
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dev_info->driver_name = drivername;
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dev_info->if_index = internals->if_index;
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dev_info->max_mac_addrs = 1;
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dev_info->max_rx_pktlen = (uint32_t) -1;
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dev_info->max_rx_queues = (uint16_t)internals->nb_rx_queues;
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dev_info->max_tx_queues = (uint16_t)internals->nb_tx_queues;
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dev_info->min_rx_bufsize = 0;
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dev_info->pci_dev = NULL;
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}
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static void
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eth_stats_get(struct rte_eth_dev *dev,
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struct rte_eth_stats *igb_stats)
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{
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unsigned i;
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unsigned long rx_total = 0, tx_total = 0, tx_err_total = 0;
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const struct pmd_internals *internal = dev->data->dev_private;
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memset(igb_stats, 0, sizeof(*igb_stats));
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for (i = 0; i < RTE_ETHDEV_QUEUE_STAT_CNTRS && i < internal->nb_rx_queues;
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i++) {
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igb_stats->q_ipackets[i] = internal->rx_queue[i].rx_pkts;
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rx_total += igb_stats->q_ipackets[i];
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}
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for (i = 0; i < RTE_ETHDEV_QUEUE_STAT_CNTRS && i < internal->nb_tx_queues;
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i++) {
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igb_stats->q_opackets[i] = internal->tx_queue[i].tx_pkts;
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igb_stats->q_errors[i] = internal->tx_queue[i].err_pkts;
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tx_total += igb_stats->q_opackets[i];
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tx_err_total += igb_stats->q_errors[i];
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}
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igb_stats->ipackets = rx_total;
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igb_stats->opackets = tx_total;
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igb_stats->oerrors = tx_err_total;
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}
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static void
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eth_stats_reset(struct rte_eth_dev *dev)
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{
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unsigned i;
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struct pmd_internals *internal = dev->data->dev_private;
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for (i = 0; i < internal->nb_rx_queues; i++)
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internal->rx_queue[i].rx_pkts = 0;
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for (i = 0; i < internal->nb_tx_queues; i++) {
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internal->tx_queue[i].tx_pkts = 0;
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internal->tx_queue[i].err_pkts = 0;
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}
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}
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static void
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eth_dev_close(struct rte_eth_dev *dev __rte_unused)
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{
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}
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static void
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eth_queue_release(void *q __rte_unused)
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{
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}
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static int
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eth_link_update(struct rte_eth_dev *dev __rte_unused,
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int wait_to_complete __rte_unused)
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{
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return 0;
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}
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static int
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eth_rx_queue_setup(struct rte_eth_dev *dev,
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uint16_t rx_queue_id,
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uint16_t nb_rx_desc __rte_unused,
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unsigned int socket_id __rte_unused,
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const struct rte_eth_rxconf *rx_conf __rte_unused,
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struct rte_mempool *mb_pool)
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{
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struct pmd_internals *internals = dev->data->dev_private;
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struct pcap_rx_queue *pcap_q = &internals->rx_queue[rx_queue_id];
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pcap_q->mb_pool = mb_pool;
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dev->data->rx_queues[rx_queue_id] = pcap_q;
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pcap_q->in_port = dev->data->port_id;
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return 0;
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}
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static int
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eth_tx_queue_setup(struct rte_eth_dev *dev,
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uint16_t tx_queue_id,
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uint16_t nb_tx_desc __rte_unused,
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unsigned int socket_id __rte_unused,
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const struct rte_eth_txconf *tx_conf __rte_unused)
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{
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struct pmd_internals *internals = dev->data->dev_private;
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dev->data->tx_queues[tx_queue_id] = &internals->tx_queue[tx_queue_id];
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return 0;
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}
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static struct eth_dev_ops ops = {
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.dev_start = eth_dev_start,
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.dev_stop = eth_dev_stop,
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.dev_close = eth_dev_close,
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.dev_configure = eth_dev_configure,
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.dev_infos_get = eth_dev_info,
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.rx_queue_setup = eth_rx_queue_setup,
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.tx_queue_setup = eth_tx_queue_setup,
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.rx_queue_release = eth_queue_release,
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.tx_queue_release = eth_queue_release,
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.link_update = eth_link_update,
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.stats_get = eth_stats_get,
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.stats_reset = eth_stats_reset,
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};
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|
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/*
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* Function handler that opens the pcap file for reading a stores a
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* reference of it for use it later on.
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*/
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static int
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open_rx_pcap(const char *key __rte_unused, const char *value, void *extra_args)
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{
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unsigned i;
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const char *pcap_filename = value;
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struct rx_pcaps *pcaps = extra_args;
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pcap_t *rx_pcap;
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for (i = 0; i < pcaps->num_of_rx; i++) {
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if ((rx_pcap = pcap_open_offline(pcap_filename, errbuf)) == NULL) {
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RTE_LOG(ERR, PMD, "Couldn't open %s: %s\n", pcap_filename, errbuf);
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return -1;
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}
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pcaps->pcaps[i] = rx_pcap;
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}
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return 0;
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}
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|
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/*
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* Opens a pcap file for writing and stores a reference to it
|
|
* for use it later on.
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|
*/
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|
static int
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open_tx_pcap(const char *key __rte_unused, const char *value, void *extra_args)
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|
{
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unsigned i;
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const char *pcap_filename = value;
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struct tx_pcaps *dumpers = extra_args;
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pcap_t *tx_pcap;
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pcap_dumper_t *dumper;
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for (i = 0; i < dumpers->num_of_tx; i++) {
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/*
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* We need to create a dummy empty pcap_t to use it
|
|
* with pcap_dump_open(). We create big enough an Ethernet
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* pcap holder.
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*/
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if ((tx_pcap = pcap_open_dead(DLT_EN10MB, RTE_ETH_PCAP_SNAPSHOT_LEN))
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== NULL) {
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RTE_LOG(ERR, PMD, "Couldn't create dead pcap\n");
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return -1;
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}
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/* The dumper is created using the previous pcap_t reference */
|
|
if ((dumper = pcap_dump_open(tx_pcap, pcap_filename)) == NULL) {
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RTE_LOG(ERR, PMD, "Couldn't open %s for writing.\n", pcap_filename);
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return -1;
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}
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dumpers->dumpers[i] = dumper;
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|
}
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return 0;
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}
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|
|
/*
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|
* pcap_open_live wrapper function
|
|
*/
|
|
static inline int
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|
open_iface_live(const char *iface, pcap_t **pcap) {
|
|
*pcap = pcap_open_live(iface, RTE_ETH_PCAP_SNAPLEN,
|
|
RTE_ETH_PCAP_PROMISC, RTE_ETH_PCAP_TIMEOUT, errbuf);
|
|
|
|
if (*pcap == NULL) {
|
|
RTE_LOG(ERR, PMD, "Couldn't open %s: %s\n", iface, errbuf);
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Opens an interface for reading and writing
|
|
*/
|
|
static inline int
|
|
open_rx_tx_iface(const char *key __rte_unused, const char *value, void *extra_args)
|
|
{
|
|
const char *iface = value;
|
|
pcap_t **pcap = extra_args;
|
|
|
|
if(open_iface_live(iface, pcap) < 0)
|
|
return -1;
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Opens a NIC for reading packets from it
|
|
*/
|
|
static inline int
|
|
open_rx_iface(const char *key __rte_unused, const char *value, void *extra_args)
|
|
{
|
|
unsigned i;
|
|
const char *iface = value;
|
|
struct rx_pcaps *pcaps = extra_args;
|
|
pcap_t *pcap = NULL;
|
|
|
|
for (i = 0; i < pcaps->num_of_rx; i++) {
|
|
if(open_iface_live(iface, &pcap) < 0)
|
|
return -1;
|
|
pcaps->pcaps[i] = pcap;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Opens a NIC for writing packets to it
|
|
*/
|
|
static inline int
|
|
open_tx_iface(const char *key __rte_unused, const char *value, void *extra_args)
|
|
{
|
|
unsigned i;
|
|
const char *iface = value;
|
|
struct tx_pcaps *pcaps = extra_args;
|
|
pcap_t *pcap;
|
|
|
|
for (i = 0; i < pcaps->num_of_tx; i++) {
|
|
if(open_iface_live(iface, &pcap) < 0)
|
|
return -1;
|
|
pcaps->pcaps[i] = pcap;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int
|
|
rte_pmd_init_internals(const char *name, const unsigned nb_rx_queues,
|
|
const unsigned nb_tx_queues,
|
|
const unsigned numa_node,
|
|
struct pmd_internals **internals,
|
|
struct rte_eth_dev **eth_dev,
|
|
struct rte_kvargs *kvlist)
|
|
{
|
|
struct rte_eth_dev_data *data = NULL;
|
|
struct rte_pci_device *pci_dev = NULL;
|
|
unsigned k_idx;
|
|
struct rte_kvargs_pair *pair = NULL;
|
|
|
|
for (k_idx = 0; k_idx < kvlist->count; k_idx++) {
|
|
pair = &kvlist->pairs[k_idx];
|
|
if (strstr(pair->key, ETH_PCAP_IFACE_ARG) != NULL)
|
|
break;
|
|
}
|
|
|
|
RTE_LOG(INFO, PMD,
|
|
"Creating pcap-backed ethdev on numa socket %u\n", numa_node);
|
|
|
|
/* now do all data allocation - for eth_dev structure, dummy pci driver
|
|
* and internal (private) data
|
|
*/
|
|
data = rte_zmalloc_socket(name, sizeof(*data), 0, numa_node);
|
|
if (data == NULL)
|
|
goto error;
|
|
|
|
pci_dev = rte_zmalloc_socket(name, sizeof(*pci_dev), 0, numa_node);
|
|
if (pci_dev == NULL)
|
|
goto error;
|
|
|
|
*internals = rte_zmalloc_socket(name, sizeof(**internals), 0, numa_node);
|
|
if (*internals == NULL)
|
|
goto error;
|
|
|
|
/* reserve an ethdev entry */
|
|
*eth_dev = rte_eth_dev_allocate(name);
|
|
if (*eth_dev == NULL)
|
|
goto error;
|
|
|
|
/* now put it all together
|
|
* - store queue data in internals,
|
|
* - store numa_node info in pci_driver
|
|
* - point eth_dev_data to internals and pci_driver
|
|
* - and point eth_dev structure to new eth_dev_data structure
|
|
*/
|
|
/* NOTE: we'll replace the data element, of originally allocated eth_dev
|
|
* so the rings are local per-process */
|
|
|
|
(*internals)->nb_rx_queues = nb_rx_queues;
|
|
(*internals)->nb_tx_queues = nb_tx_queues;
|
|
|
|
if (pair == NULL)
|
|
(*internals)->if_index = 0;
|
|
else
|
|
(*internals)->if_index = if_nametoindex(pair->value);
|
|
|
|
pci_dev->numa_node = numa_node;
|
|
|
|
data->dev_private = *internals;
|
|
data->port_id = (*eth_dev)->data->port_id;
|
|
data->nb_rx_queues = (uint16_t)nb_rx_queues;
|
|
data->nb_tx_queues = (uint16_t)nb_tx_queues;
|
|
data->dev_link = pmd_link;
|
|
data->mac_addrs = ð_addr;
|
|
|
|
(*eth_dev)->data = data;
|
|
(*eth_dev)->dev_ops = &ops;
|
|
(*eth_dev)->pci_dev = pci_dev;
|
|
|
|
return 0;
|
|
|
|
error: if (data)
|
|
rte_free(data);
|
|
if (pci_dev)
|
|
rte_free(pci_dev);
|
|
if (*internals)
|
|
rte_free(*internals);
|
|
return -1;
|
|
}
|
|
|
|
static int
|
|
rte_eth_from_pcaps_n_dumpers(const char *name, pcap_t * const rx_queues[],
|
|
const unsigned nb_rx_queues,
|
|
pcap_dumper_t * const tx_queues[],
|
|
const unsigned nb_tx_queues,
|
|
const unsigned numa_node,
|
|
struct rte_kvargs *kvlist)
|
|
{
|
|
struct pmd_internals *internals = NULL;
|
|
struct rte_eth_dev *eth_dev = NULL;
|
|
unsigned i;
|
|
|
|
/* do some parameter checking */
|
|
if (rx_queues == NULL && nb_rx_queues > 0)
|
|
return -1;
|
|
if (tx_queues == NULL && nb_tx_queues > 0)
|
|
return -1;
|
|
|
|
if (rte_pmd_init_internals(name, nb_rx_queues, nb_tx_queues, numa_node,
|
|
&internals, ð_dev, kvlist) < 0)
|
|
return -1;
|
|
|
|
for (i = 0; i < nb_rx_queues; i++) {
|
|
internals->rx_queue->pcap = rx_queues[i];
|
|
}
|
|
for (i = 0; i < nb_tx_queues; i++) {
|
|
internals->tx_queue->dumper = tx_queues[i];
|
|
}
|
|
|
|
eth_dev->rx_pkt_burst = eth_pcap_rx;
|
|
eth_dev->tx_pkt_burst = eth_pcap_tx_dumper;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
rte_eth_from_pcaps(const char *name, pcap_t * const rx_queues[],
|
|
const unsigned nb_rx_queues,
|
|
pcap_t * const tx_queues[],
|
|
const unsigned nb_tx_queues,
|
|
const unsigned numa_node,
|
|
struct rte_kvargs *kvlist)
|
|
{
|
|
struct pmd_internals *internals = NULL;
|
|
struct rte_eth_dev *eth_dev = NULL;
|
|
unsigned i;
|
|
|
|
/* do some parameter checking */
|
|
if (rx_queues == NULL && nb_rx_queues > 0)
|
|
return -1;
|
|
if (tx_queues == NULL && nb_tx_queues > 0)
|
|
return -1;
|
|
|
|
if (rte_pmd_init_internals(name, nb_rx_queues, nb_tx_queues, numa_node,
|
|
&internals, ð_dev, kvlist) < 0)
|
|
return -1;
|
|
|
|
for (i = 0; i < nb_rx_queues; i++) {
|
|
internals->rx_queue->pcap = rx_queues[i];
|
|
}
|
|
for (i = 0; i < nb_tx_queues; i++) {
|
|
internals->tx_queue->pcap = tx_queues[i];
|
|
}
|
|
|
|
eth_dev->rx_pkt_burst = eth_pcap_rx;
|
|
eth_dev->tx_pkt_burst = eth_pcap_tx;
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int
|
|
rte_pmd_pcap_devinit(const char *name, const char *params)
|
|
{
|
|
unsigned numa_node, using_dumpers = 0;
|
|
int ret;
|
|
struct rte_kvargs *kvlist;
|
|
struct rx_pcaps pcaps;
|
|
struct tx_pcaps dumpers;
|
|
|
|
RTE_LOG(INFO, PMD, "Initializing pmd_pcap for %s\n", name);
|
|
|
|
numa_node = rte_socket_id();
|
|
|
|
gettimeofday(&start_time, NULL);
|
|
start_cycles = rte_get_timer_cycles();
|
|
hz = rte_get_timer_hz();
|
|
|
|
kvlist = rte_kvargs_parse(params, valid_arguments);
|
|
if (kvlist == NULL)
|
|
return -1;
|
|
|
|
/*
|
|
* If iface argument is passed we open the NICs and use them for
|
|
* reading / writing
|
|
*/
|
|
if (rte_kvargs_count(kvlist, ETH_PCAP_IFACE_ARG) == 1) {
|
|
|
|
ret = rte_kvargs_process(kvlist, ETH_PCAP_IFACE_ARG,
|
|
&open_rx_tx_iface, &pcaps.pcaps[0]);
|
|
if (ret < 0)
|
|
return -1;
|
|
|
|
return rte_eth_from_pcaps(name, pcaps.pcaps, 1, pcaps.pcaps, 1,
|
|
numa_node, kvlist);
|
|
}
|
|
|
|
/*
|
|
* We check whether we want to open a RX stream from a real NIC or a
|
|
* pcap file
|
|
*/
|
|
if ((pcaps.num_of_rx = rte_kvargs_count(kvlist, ETH_PCAP_RX_PCAP_ARG))) {
|
|
ret = rte_kvargs_process(kvlist, ETH_PCAP_RX_PCAP_ARG,
|
|
&open_rx_pcap, &pcaps);
|
|
} else {
|
|
pcaps.num_of_rx = rte_kvargs_count(kvlist,
|
|
ETH_PCAP_RX_IFACE_ARG);
|
|
ret = rte_kvargs_process(kvlist, ETH_PCAP_RX_IFACE_ARG,
|
|
&open_rx_iface, &pcaps);
|
|
}
|
|
|
|
if (ret < 0)
|
|
return -1;
|
|
|
|
/*
|
|
* We check whether we want to open a TX stream to a real NIC or a
|
|
* pcap file
|
|
*/
|
|
if ((dumpers.num_of_tx = rte_kvargs_count(kvlist,
|
|
ETH_PCAP_TX_PCAP_ARG))) {
|
|
ret = rte_kvargs_process(kvlist, ETH_PCAP_TX_PCAP_ARG,
|
|
&open_tx_pcap, &dumpers);
|
|
using_dumpers = 1;
|
|
} else {
|
|
dumpers.num_of_tx = rte_kvargs_count(kvlist,
|
|
ETH_PCAP_TX_IFACE_ARG);
|
|
ret = rte_kvargs_process(kvlist, ETH_PCAP_TX_IFACE_ARG,
|
|
&open_tx_iface, &dumpers);
|
|
}
|
|
|
|
if (ret < 0)
|
|
return -1;
|
|
|
|
if (using_dumpers)
|
|
return rte_eth_from_pcaps_n_dumpers(name, pcaps.pcaps, pcaps.num_of_rx,
|
|
dumpers.dumpers, dumpers.num_of_tx, numa_node, kvlist);
|
|
|
|
return rte_eth_from_pcaps(name, pcaps.pcaps, pcaps.num_of_rx, dumpers.pcaps,
|
|
dumpers.num_of_tx, numa_node, kvlist);
|
|
|
|
}
|
|
|
|
static struct rte_driver pmd_pcap_drv = {
|
|
.name = "eth_pcap",
|
|
.type = PMD_VDEV,
|
|
.init = rte_pmd_pcap_devinit,
|
|
};
|
|
|
|
PMD_REGISTER_DRIVER(pmd_pcap_drv);
|