e9e23a617e
This commit adds a multi-flow traffic generator forwarding engine. In effect, this forwarding mode functions very similar to the txonly mode, with the difference that it generates multiple L4 flows. Signed-off-by: Cyril Chemparathy <cchemparathy@tilera.com> Acked-by: Thomas Monjalon <thomas.monjalon@6wind.com>
248 lines
7.2 KiB
C
248 lines
7.2 KiB
C
/*-
|
|
* BSD LICENSE
|
|
*
|
|
* Copyright(c) 2010-2013 Tilera 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 Tilera 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 <stdarg.h>
|
|
#include <string.h>
|
|
#include <stdio.h>
|
|
#include <errno.h>
|
|
#include <stdint.h>
|
|
#include <unistd.h>
|
|
#include <inttypes.h>
|
|
|
|
#include <sys/queue.h>
|
|
#include <sys/stat.h>
|
|
|
|
#include <rte_common.h>
|
|
#include <rte_byteorder.h>
|
|
#include <rte_log.h>
|
|
#include <rte_debug.h>
|
|
#include <rte_cycles.h>
|
|
#include <rte_memory.h>
|
|
#include <rte_memcpy.h>
|
|
#include <rte_memzone.h>
|
|
#include <rte_launch.h>
|
|
#include <rte_tailq.h>
|
|
#include <rte_eal.h>
|
|
#include <rte_per_lcore.h>
|
|
#include <rte_lcore.h>
|
|
#include <rte_atomic.h>
|
|
#include <rte_branch_prediction.h>
|
|
#include <rte_ring.h>
|
|
#include <rte_memory.h>
|
|
#include <rte_mempool.h>
|
|
#include <rte_mbuf.h>
|
|
#include <rte_interrupts.h>
|
|
#include <rte_pci.h>
|
|
#include <rte_ether.h>
|
|
#include <rte_ethdev.h>
|
|
#include <rte_ip.h>
|
|
#include <rte_tcp.h>
|
|
#include <rte_udp.h>
|
|
#include <rte_string_fns.h>
|
|
|
|
#include "testpmd.h"
|
|
|
|
/* hardcoded configuration (for now) */
|
|
static unsigned cfg_n_flows = 1024;
|
|
static unsigned cfg_pkt_size = 300;
|
|
static uint32_t cfg_ip_src = IPv4(10, 254, 0, 0);
|
|
static uint32_t cfg_ip_dst = IPv4(10, 253, 0, 0);
|
|
static uint16_t cfg_udp_src = 1000;
|
|
static uint16_t cfg_udp_dst = 1001;
|
|
static struct ether_addr cfg_ether_src =
|
|
{{ 0x00, 0x01, 0x02, 0x03, 0x04, 0x00 }};
|
|
static struct ether_addr cfg_ether_dst =
|
|
{{ 0x00, 0x01, 0x02, 0x03, 0x04, 0x01 }};
|
|
|
|
#define IP_DEFTTL 64 /* from RFC 1340. */
|
|
#define IP_VERSION 0x40
|
|
#define IP_HDRLEN 0x05 /* default IP header length == five 32-bits words. */
|
|
#define IP_VHL_DEF (IP_VERSION | IP_HDRLEN)
|
|
|
|
static inline struct rte_mbuf *
|
|
tx_mbuf_alloc(struct rte_mempool *mp)
|
|
{
|
|
struct rte_mbuf *m;
|
|
|
|
m = __rte_mbuf_raw_alloc(mp);
|
|
__rte_mbuf_sanity_check_raw(m, RTE_MBUF_PKT, 0);
|
|
return (m);
|
|
}
|
|
|
|
|
|
static inline uint16_t
|
|
ip_sum(const uint16_t *hdr, int hdr_len)
|
|
{
|
|
uint32_t sum = 0;
|
|
|
|
while (hdr_len > 1)
|
|
{
|
|
sum += *hdr++;
|
|
if (sum & 0x80000000)
|
|
sum = (sum & 0xFFFF) + (sum >> 16);
|
|
hdr_len -= 2;
|
|
}
|
|
|
|
while (sum >> 16)
|
|
sum = (sum & 0xFFFF) + (sum >> 16);
|
|
|
|
return ~sum;
|
|
}
|
|
|
|
/*
|
|
* Multi-flow generation mode.
|
|
*
|
|
* We originate a bunch of flows (varying destination IP addresses), and
|
|
* terminate receive traffic. Received traffic is simply discarded, but we
|
|
* still do so in order to maintain traffic statistics.
|
|
*/
|
|
static void
|
|
pkt_burst_flow_gen(struct fwd_stream *fs)
|
|
{
|
|
unsigned pkt_size = cfg_pkt_size - 4; /* Adjust FCS */
|
|
struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
|
|
struct rte_mempool *mbp;
|
|
struct rte_mbuf *pkt;
|
|
struct ether_hdr *eth_hdr;
|
|
struct ipv4_hdr *ip_hdr;
|
|
struct udp_hdr *udp_hdr;
|
|
uint16_t vlan_tci;
|
|
uint16_t ol_flags;
|
|
uint16_t nb_rx;
|
|
uint16_t nb_tx;
|
|
uint16_t nb_pkt;
|
|
uint16_t i;
|
|
#ifdef RTE_TEST_PMD_RECORD_CORE_CYCLES
|
|
uint64_t start_tsc;
|
|
uint64_t end_tsc;
|
|
uint64_t core_cycles;
|
|
#endif
|
|
static int next_flow = 0;
|
|
|
|
#ifdef RTE_TEST_PMD_RECORD_CORE_CYCLES
|
|
start_tsc = rte_rdtsc();
|
|
#endif
|
|
|
|
/* Receive a burst of packets and discard them. */
|
|
nb_rx = rte_eth_rx_burst(fs->rx_port, fs->rx_queue, pkts_burst,
|
|
nb_pkt_per_burst);
|
|
fs->rx_packets += nb_rx;
|
|
|
|
for (i = 0; i < nb_rx; i++)
|
|
rte_pktmbuf_free(pkts_burst[i]);
|
|
|
|
mbp = current_fwd_lcore()->mbp;
|
|
vlan_tci = ports[fs->tx_port].tx_vlan_id;
|
|
ol_flags = ports[fs->tx_port].tx_ol_flags;
|
|
|
|
for (nb_pkt = 0; nb_pkt < nb_pkt_per_burst; nb_pkt++) {
|
|
pkt = tx_mbuf_alloc(mbp);
|
|
if (!pkt)
|
|
break;
|
|
|
|
pkt->pkt.data_len = pkt_size;
|
|
pkt->pkt.next = NULL;
|
|
|
|
/* Initialize Ethernet header. */
|
|
eth_hdr = (struct ether_hdr *)pkt->pkt.data;
|
|
ether_addr_copy(&cfg_ether_dst, ð_hdr->d_addr);
|
|
ether_addr_copy(&cfg_ether_src, ð_hdr->s_addr);
|
|
eth_hdr->ether_type = rte_cpu_to_be_16(ETHER_TYPE_IPv4);
|
|
|
|
/* Initialize IP header. */
|
|
ip_hdr = (struct ipv4_hdr *)(eth_hdr + 1);
|
|
memset(ip_hdr, 0, sizeof(*ip_hdr));
|
|
ip_hdr->version_ihl = IP_VHL_DEF;
|
|
ip_hdr->type_of_service = 0;
|
|
ip_hdr->fragment_offset = 0;
|
|
ip_hdr->time_to_live = IP_DEFTTL;
|
|
ip_hdr->next_proto_id = IPPROTO_UDP;
|
|
ip_hdr->packet_id = 0;
|
|
ip_hdr->src_addr = rte_cpu_to_be_32(cfg_ip_src);
|
|
ip_hdr->dst_addr = rte_cpu_to_be_32(cfg_ip_dst +
|
|
next_flow);
|
|
ip_hdr->total_length = RTE_CPU_TO_BE_16(pkt_size -
|
|
sizeof(*eth_hdr));
|
|
ip_hdr->hdr_checksum = ip_sum((uint16_t *)ip_hdr,
|
|
sizeof(*ip_hdr));
|
|
|
|
/* Initialize UDP header. */
|
|
udp_hdr = (struct udp_hdr *)(ip_hdr + 1);
|
|
udp_hdr->src_port = rte_cpu_to_be_16(cfg_udp_src);
|
|
udp_hdr->dst_port = rte_cpu_to_be_16(cfg_udp_dst);
|
|
udp_hdr->dgram_cksum = 0; /* No UDP checksum. */
|
|
udp_hdr->dgram_len = RTE_CPU_TO_BE_16(pkt_size -
|
|
sizeof(*eth_hdr) -
|
|
sizeof(*ip_hdr));
|
|
pkt->pkt.nb_segs = 1;
|
|
pkt->pkt.pkt_len = pkt_size;
|
|
pkt->ol_flags = ol_flags;
|
|
pkt->pkt.vlan_macip.f.vlan_tci = vlan_tci;
|
|
pkt->pkt.vlan_macip.f.l2_len = sizeof(struct ether_hdr);
|
|
pkt->pkt.vlan_macip.f.l3_len = sizeof(struct ipv4_hdr);
|
|
pkts_burst[nb_pkt] = pkt;
|
|
|
|
next_flow = (next_flow + 1) % cfg_n_flows;
|
|
}
|
|
|
|
nb_tx = rte_eth_tx_burst(fs->tx_port, fs->tx_queue, pkts_burst, nb_pkt);
|
|
fs->tx_packets += nb_tx;
|
|
|
|
#ifdef RTE_TEST_PMD_RECORD_BURST_STATS
|
|
fs->tx_burst_stats.pkt_burst_spread[nb_tx]++;
|
|
#endif
|
|
if (unlikely(nb_tx < nb_pkt)) {
|
|
/* Back out the flow counter. */
|
|
next_flow -= (nb_pkt - nb_tx);
|
|
while (next_flow < 0)
|
|
next_flow += cfg_n_flows;
|
|
|
|
do {
|
|
rte_pktmbuf_free(pkts_burst[nb_tx]);
|
|
} while (++nb_tx < nb_pkt);
|
|
}
|
|
#ifdef RTE_TEST_PMD_RECORD_CORE_CYCLES
|
|
end_tsc = rte_rdtsc();
|
|
core_cycles = (end_tsc - start_tsc);
|
|
fs->core_cycles = (uint64_t) (fs->core_cycles + core_cycles);
|
|
#endif
|
|
}
|
|
|
|
struct fwd_engine flow_gen_engine = {
|
|
.fwd_mode_name = "flowgen",
|
|
.port_fwd_begin = NULL,
|
|
.port_fwd_end = NULL,
|
|
.packet_fwd = pkt_burst_flow_gen,
|
|
};
|