338 lines
9.7 KiB
C
338 lines
9.7 KiB
C
/*-
|
|
* 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 <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_eal.h>
|
|
#include <rte_per_lcore.h>
|
|
#include <rte_lcore.h>
|
|
#include <rte_atomic.h>
|
|
#include <rte_branch_prediction.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 <rte_flow.h>
|
|
|
|
#include "testpmd.h"
|
|
|
|
#define UDP_SRC_PORT 1024
|
|
#define UDP_DST_PORT 1024
|
|
|
|
#define IP_SRC_ADDR ((192U << 24) | (168 << 16) | (0 << 8) | 1)
|
|
#define IP_DST_ADDR ((192U << 24) | (168 << 16) | (0 << 8) | 2)
|
|
|
|
#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 struct ipv4_hdr pkt_ip_hdr; /**< IP header of transmitted packets. */
|
|
static struct udp_hdr pkt_udp_hdr; /**< UDP header of transmitted packets. */
|
|
|
|
static void
|
|
copy_buf_to_pkt_segs(void* buf, unsigned len, struct rte_mbuf *pkt,
|
|
unsigned offset)
|
|
{
|
|
struct rte_mbuf *seg;
|
|
void *seg_buf;
|
|
unsigned copy_len;
|
|
|
|
seg = pkt;
|
|
while (offset >= seg->data_len) {
|
|
offset -= seg->data_len;
|
|
seg = seg->next;
|
|
}
|
|
copy_len = seg->data_len - offset;
|
|
seg_buf = rte_pktmbuf_mtod_offset(seg, char *, offset);
|
|
while (len > copy_len) {
|
|
rte_memcpy(seg_buf, buf, (size_t) copy_len);
|
|
len -= copy_len;
|
|
buf = ((char*) buf + copy_len);
|
|
seg = seg->next;
|
|
seg_buf = rte_pktmbuf_mtod(seg, char *);
|
|
}
|
|
rte_memcpy(seg_buf, buf, (size_t) len);
|
|
}
|
|
|
|
static inline void
|
|
copy_buf_to_pkt(void* buf, unsigned len, struct rte_mbuf *pkt, unsigned offset)
|
|
{
|
|
if (offset + len <= pkt->data_len) {
|
|
rte_memcpy(rte_pktmbuf_mtod_offset(pkt, char *, offset),
|
|
buf, (size_t) len);
|
|
return;
|
|
}
|
|
copy_buf_to_pkt_segs(buf, len, pkt, offset);
|
|
}
|
|
|
|
static void
|
|
setup_pkt_udp_ip_headers(struct ipv4_hdr *ip_hdr,
|
|
struct udp_hdr *udp_hdr,
|
|
uint16_t pkt_data_len)
|
|
{
|
|
uint16_t *ptr16;
|
|
uint32_t ip_cksum;
|
|
uint16_t pkt_len;
|
|
|
|
/*
|
|
* Initialize UDP header.
|
|
*/
|
|
pkt_len = (uint16_t) (pkt_data_len + sizeof(struct udp_hdr));
|
|
udp_hdr->src_port = rte_cpu_to_be_16(UDP_SRC_PORT);
|
|
udp_hdr->dst_port = rte_cpu_to_be_16(UDP_DST_PORT);
|
|
udp_hdr->dgram_len = RTE_CPU_TO_BE_16(pkt_len);
|
|
udp_hdr->dgram_cksum = 0; /* No UDP checksum. */
|
|
|
|
/*
|
|
* Initialize IP header.
|
|
*/
|
|
pkt_len = (uint16_t) (pkt_len + sizeof(struct ipv4_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->total_length = RTE_CPU_TO_BE_16(pkt_len);
|
|
ip_hdr->src_addr = rte_cpu_to_be_32(IP_SRC_ADDR);
|
|
ip_hdr->dst_addr = rte_cpu_to_be_32(IP_DST_ADDR);
|
|
|
|
/*
|
|
* Compute IP header checksum.
|
|
*/
|
|
ptr16 = (unaligned_uint16_t*) ip_hdr;
|
|
ip_cksum = 0;
|
|
ip_cksum += ptr16[0]; ip_cksum += ptr16[1];
|
|
ip_cksum += ptr16[2]; ip_cksum += ptr16[3];
|
|
ip_cksum += ptr16[4];
|
|
ip_cksum += ptr16[6]; ip_cksum += ptr16[7];
|
|
ip_cksum += ptr16[8]; ip_cksum += ptr16[9];
|
|
|
|
/*
|
|
* Reduce 32 bit checksum to 16 bits and complement it.
|
|
*/
|
|
ip_cksum = ((ip_cksum & 0xFFFF0000) >> 16) +
|
|
(ip_cksum & 0x0000FFFF);
|
|
if (ip_cksum > 65535)
|
|
ip_cksum -= 65535;
|
|
ip_cksum = (~ip_cksum) & 0x0000FFFF;
|
|
if (ip_cksum == 0)
|
|
ip_cksum = 0xFFFF;
|
|
ip_hdr->hdr_checksum = (uint16_t) ip_cksum;
|
|
}
|
|
|
|
/*
|
|
* Transmit a burst of multi-segments packets.
|
|
*/
|
|
static void
|
|
pkt_burst_transmit(struct fwd_stream *fs)
|
|
{
|
|
struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
|
|
struct rte_port *txp;
|
|
struct rte_mbuf *pkt;
|
|
struct rte_mbuf *pkt_seg;
|
|
struct rte_mempool *mbp;
|
|
struct ether_hdr eth_hdr;
|
|
uint16_t nb_tx;
|
|
uint16_t nb_pkt;
|
|
uint16_t vlan_tci, vlan_tci_outer;
|
|
uint32_t retry;
|
|
uint64_t ol_flags = 0;
|
|
uint8_t i;
|
|
#ifdef RTE_TEST_PMD_RECORD_CORE_CYCLES
|
|
uint64_t start_tsc;
|
|
uint64_t end_tsc;
|
|
uint64_t core_cycles;
|
|
#endif
|
|
uint32_t nb_segs, pkt_len;
|
|
|
|
#ifdef RTE_TEST_PMD_RECORD_CORE_CYCLES
|
|
start_tsc = rte_rdtsc();
|
|
#endif
|
|
|
|
mbp = current_fwd_lcore()->mbp;
|
|
txp = &ports[fs->tx_port];
|
|
vlan_tci = txp->tx_vlan_id;
|
|
vlan_tci_outer = txp->tx_vlan_id_outer;
|
|
if (txp->tx_ol_flags & TESTPMD_TX_OFFLOAD_INSERT_VLAN)
|
|
ol_flags = PKT_TX_VLAN_PKT;
|
|
if (txp->tx_ol_flags & TESTPMD_TX_OFFLOAD_INSERT_QINQ)
|
|
ol_flags |= PKT_TX_QINQ_PKT;
|
|
if (txp->tx_ol_flags & TESTPMD_TX_OFFLOAD_MACSEC)
|
|
ol_flags |= PKT_TX_MACSEC;
|
|
for (nb_pkt = 0; nb_pkt < nb_pkt_per_burst; nb_pkt++) {
|
|
pkt = rte_mbuf_raw_alloc(mbp);
|
|
if (pkt == NULL) {
|
|
nomore_mbuf:
|
|
if (nb_pkt == 0)
|
|
return;
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* Using raw alloc is good to improve performance,
|
|
* but some consumers may use the headroom and so
|
|
* decrement data_off. We need to make sure it is
|
|
* reset to default value.
|
|
*/
|
|
rte_pktmbuf_reset_headroom(pkt);
|
|
pkt->data_len = tx_pkt_seg_lengths[0];
|
|
pkt_seg = pkt;
|
|
if (tx_pkt_split == TX_PKT_SPLIT_RND)
|
|
nb_segs = random() % tx_pkt_nb_segs + 1;
|
|
else
|
|
nb_segs = tx_pkt_nb_segs;
|
|
pkt_len = pkt->data_len;
|
|
for (i = 1; i < nb_segs; i++) {
|
|
pkt_seg->next = rte_mbuf_raw_alloc(mbp);
|
|
if (pkt_seg->next == NULL) {
|
|
pkt->nb_segs = i;
|
|
rte_pktmbuf_free(pkt);
|
|
goto nomore_mbuf;
|
|
}
|
|
pkt_seg = pkt_seg->next;
|
|
pkt_seg->data_len = tx_pkt_seg_lengths[i];
|
|
pkt_len += pkt_seg->data_len;
|
|
}
|
|
pkt_seg->next = NULL; /* Last segment of packet. */
|
|
|
|
/*
|
|
* Initialize Ethernet header.
|
|
*/
|
|
ether_addr_copy(&peer_eth_addrs[fs->peer_addr],ð_hdr.d_addr);
|
|
ether_addr_copy(&ports[fs->tx_port].eth_addr, ð_hdr.s_addr);
|
|
eth_hdr.ether_type = rte_cpu_to_be_16(ETHER_TYPE_IPv4);
|
|
|
|
/*
|
|
* Copy headers in first packet segment(s).
|
|
*/
|
|
copy_buf_to_pkt(ð_hdr, sizeof(eth_hdr), pkt, 0);
|
|
copy_buf_to_pkt(&pkt_ip_hdr, sizeof(pkt_ip_hdr), pkt,
|
|
sizeof(struct ether_hdr));
|
|
copy_buf_to_pkt(&pkt_udp_hdr, sizeof(pkt_udp_hdr), pkt,
|
|
sizeof(struct ether_hdr) +
|
|
sizeof(struct ipv4_hdr));
|
|
|
|
/*
|
|
* Complete first mbuf of packet and append it to the
|
|
* burst of packets to be transmitted.
|
|
*/
|
|
pkt->nb_segs = nb_segs;
|
|
pkt->pkt_len = pkt_len;
|
|
pkt->ol_flags = ol_flags;
|
|
pkt->vlan_tci = vlan_tci;
|
|
pkt->vlan_tci_outer = vlan_tci_outer;
|
|
pkt->l2_len = sizeof(struct ether_hdr);
|
|
pkt->l3_len = sizeof(struct ipv4_hdr);
|
|
pkts_burst[nb_pkt] = pkt;
|
|
}
|
|
nb_tx = rte_eth_tx_burst(fs->tx_port, fs->tx_queue, pkts_burst, nb_pkt);
|
|
/*
|
|
* Retry if necessary
|
|
*/
|
|
if (unlikely(nb_tx < nb_pkt) && fs->retry_enabled) {
|
|
retry = 0;
|
|
while (nb_tx < nb_pkt && retry++ < burst_tx_retry_num) {
|
|
rte_delay_us(burst_tx_delay_time);
|
|
nb_tx += rte_eth_tx_burst(fs->tx_port, fs->tx_queue,
|
|
&pkts_burst[nb_tx], nb_pkt - nb_tx);
|
|
}
|
|
}
|
|
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)) {
|
|
if (verbose_level > 0 && fs->fwd_dropped == 0)
|
|
printf("port %d tx_queue %d - drop "
|
|
"(nb_pkt:%u - nb_tx:%u)=%u packets\n",
|
|
fs->tx_port, fs->tx_queue,
|
|
(unsigned) nb_pkt, (unsigned) nb_tx,
|
|
(unsigned) (nb_pkt - nb_tx));
|
|
fs->fwd_dropped += (nb_pkt - nb_tx);
|
|
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
|
|
}
|
|
|
|
static void
|
|
tx_only_begin(__attribute__((unused)) portid_t pi)
|
|
{
|
|
uint16_t pkt_data_len;
|
|
|
|
pkt_data_len = (uint16_t) (tx_pkt_length - (sizeof(struct ether_hdr) +
|
|
sizeof(struct ipv4_hdr) +
|
|
sizeof(struct udp_hdr)));
|
|
setup_pkt_udp_ip_headers(&pkt_ip_hdr, &pkt_udp_hdr, pkt_data_len);
|
|
}
|
|
|
|
struct fwd_engine tx_only_engine = {
|
|
.fwd_mode_name = "txonly",
|
|
.port_fwd_begin = tx_only_begin,
|
|
.port_fwd_end = NULL,
|
|
.packet_fwd = pkt_burst_transmit,
|
|
};
|