app/test-pmd/rxonly.c

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
   5  *   All rights reserved.
   6  *
   7  *   Redistribution and use in source and binary forms, with or without
   8  *   modification, are permitted provided that the following conditions
   9  *   are met:
  10  *
  11  *     * Redistributions of source code must retain the above copyright
  12  *       notice, this list of conditions and the following disclaimer.
  13  *     * Redistributions in binary form must reproduce the above copyright
  14  *       notice, this list of conditions and the following disclaimer in
  15  *       the documentation and/or other materials provided with the
  16  *       distribution.
  17  *     * Neither the name of Intel Corporation nor the names of its
  18  *       contributors may be used to endorse or promote products derived
  19  *       from this software without specific prior written permission.
  20  *
  21  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  22  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  23  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  24  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  25  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  26  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  27  *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  28  *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  29  *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  30  *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  31  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32  */
  33
  34 #include <stdarg.h>
  35 #include <string.h>
  36 #include <stdio.h>
  37 #include <errno.h>
  38 #include <stdint.h>
  39 #include <unistd.h>
  40 #include <inttypes.h>
  41
  42 #include <sys/queue.h>
  43 #include <sys/stat.h>
  44
  45 #include <rte_common.h>
  46 #include <rte_byteorder.h>
  47 #include <rte_log.h>
  48 #include <rte_debug.h>
  49 #include <rte_cycles.h>
  50 #include <rte_memory.h>
  51 #include <rte_memcpy.h>
  52 #include <rte_memzone.h>
  53 #include <rte_launch.h>
  54 #include <rte_tailq.h>
  55 #include <rte_eal.h>
  56 #include <rte_per_lcore.h>
  57 #include <rte_lcore.h>
  58 #include <rte_atomic.h>
  59 #include <rte_branch_prediction.h>
  60 #include <rte_ring.h>
  61 #include <rte_memory.h>
  62 #include <rte_mempool.h>
  63 #include <rte_mbuf.h>
  64 #include <rte_interrupts.h>
  65 #include <rte_pci.h>
  66 #include <rte_ether.h>
  67 #include <rte_ethdev.h>
  68 #include <rte_string_fns.h>
  69 #include <rte_ip.h>
  70 #include <rte_udp.h>
  71
  72 #include "testpmd.h"
  73
  74 static inline void
  75 print_ether_addr(const char *what, struct ether_addr *eth_addr)
  76 {
  77         char buf[ETHER_ADDR_FMT_SIZE];
  78         ether_format_addr(buf, ETHER_ADDR_FMT_SIZE, eth_addr);
  79         printf("%s%s", what, buf);
  80 }
  81
  82 /*
  83  * Received a burst of packets.
  84  */
  85 static void
  86 pkt_burst_receive(struct fwd_stream *fs)
  87 {
  88         struct rte_mbuf  *pkts_burst[MAX_PKT_BURST];
  89         struct rte_mbuf  *mb;
  90         struct ether_hdr *eth_hdr;
  91         uint16_t eth_type;
  92         uint64_t ol_flags;
  93         uint16_t nb_rx;
  94         uint16_t i, packet_type;
  95         uint64_t is_encapsulation;
  96
  97 #ifdef RTE_TEST_PMD_RECORD_CORE_CYCLES
  98         uint64_t start_tsc;
  99         uint64_t end_tsc;
 100         uint64_t core_cycles;
 101 #endif
 102
 103 #ifdef RTE_TEST_PMD_RECORD_CORE_CYCLES
 104         start_tsc = rte_rdtsc();
 105 #endif
 106
 107         /*
 108          * Receive a burst of packets.
 109          */
 110         nb_rx = rte_eth_rx_burst(fs->rx_port, fs->rx_queue, pkts_burst,
 111                                  nb_pkt_per_burst);
 112         if (unlikely(nb_rx == 0))
 113                 return;
 114
 115 #ifdef RTE_TEST_PMD_RECORD_BURST_STATS
 116         fs->rx_burst_stats.pkt_burst_spread[nb_rx]++;
 117 #endif
 118         fs->rx_packets += nb_rx;
 119
 120         /*
 121          * Dump each received packet if verbose_level > 0.
 122          */
 123         if (verbose_level > 0)
 124                 printf("port %u/queue %u: received %u packets\n",
 125                        (unsigned) fs->rx_port,
 126                        (unsigned) fs->rx_queue,
 127                        (unsigned) nb_rx);
 128         for (i = 0; i < nb_rx; i++) {
 129                 mb = pkts_burst[i];
 130                 if (verbose_level == 0) {
 131                         rte_pktmbuf_free(mb);
 132                         continue;
 133                 }
 134                 eth_hdr = rte_pktmbuf_mtod(mb, struct ether_hdr *);
 135                 eth_type = RTE_BE_TO_CPU_16(eth_hdr->ether_type);
 136                 ol_flags = mb->ol_flags;
 137                 packet_type = mb->packet_type;
 138
 139                 is_encapsulation = ol_flags & (PKT_RX_TUNNEL_IPV4_HDR |
 140                                 PKT_RX_TUNNEL_IPV6_HDR);
 141
 142                 print_ether_addr("  src=", &eth_hdr->s_addr);
 143                 print_ether_addr(" - dst=", &eth_hdr->d_addr);
 144                 printf(" - type=0x%04x - length=%u - nb_segs=%d",
 145                        eth_type, (unsigned) mb->pkt_len,
 146                        (int)mb->nb_segs);
 147                 if (ol_flags & PKT_RX_RSS_HASH) {
 148                         printf(" - RSS hash=0x%x", (unsigned) mb->hash.rss);
 149                         printf(" - RSS queue=0x%x",(unsigned) fs->rx_queue);
 150                 } else if (ol_flags & PKT_RX_FDIR) {
 151                         printf(" - FDIR matched ");
 152                         if (ol_flags & PKT_RX_FDIR_ID)
 153                                 printf("ID=0x%x",
 154                                        mb->hash.fdir.hi);
 155                         else if (ol_flags & PKT_RX_FDIR_FLX)
 156                                 printf("flex bytes=0x%08x %08x",
 157                                        mb->hash.fdir.hi, mb->hash.fdir.lo);
 158                         else
 159                                 printf("hash=0x%x ID=0x%x ",
 160                                        mb->hash.fdir.hash, mb->hash.fdir.id);
 161                 }
 162                 if (ol_flags & PKT_RX_VLAN_PKT)
 163                         printf(" - VLAN tci=0x%x", mb->vlan_tci);
 164                 if (is_encapsulation) {
 165                         struct ipv4_hdr *ipv4_hdr;
 166                         struct ipv6_hdr *ipv6_hdr;
 167                         struct udp_hdr *udp_hdr;
 168                         uint8_t l2_len;
 169                         uint8_t l3_len;
 170                         uint8_t l4_len;
 171                         uint8_t l4_proto;
 172                         struct  vxlan_hdr *vxlan_hdr;
 173
 174                         l2_len  = sizeof(struct ether_hdr);
 175
 176                          /* Do not support ipv4 option field */
 177                         if (ol_flags & PKT_RX_TUNNEL_IPV4_HDR) {
 178                                 l3_len = sizeof(struct ipv4_hdr);
 179                                 ipv4_hdr = (struct ipv4_hdr *) (rte_pktmbuf_mtod(mb,
 180                                                 unsigned char *) + l2_len);
 181                                 l4_proto = ipv4_hdr->next_proto_id;
 182                         } else {
 183                                 l3_len = sizeof(struct ipv6_hdr);
 184                                 ipv6_hdr = (struct ipv6_hdr *) (rte_pktmbuf_mtod(mb,
 185                                                 unsigned char *) + l2_len);
 186                                 l4_proto = ipv6_hdr->proto;
 187                         }
 188                         if (l4_proto == IPPROTO_UDP) {
 189                                 udp_hdr = (struct udp_hdr *) (rte_pktmbuf_mtod(mb,
 190                                                 unsigned char *) + l2_len + l3_len);
 191                                 l4_len = sizeof(struct udp_hdr);
 192                                 vxlan_hdr = (struct vxlan_hdr *) (rte_pktmbuf_mtod(mb,
 193                                                 unsigned char *) + l2_len + l3_len
 194                                                  + l4_len);
 195
 196                                 printf(" - VXLAN packet: packet type =%d, "
 197                                         "Destination UDP port =%d, VNI = %d",
 198                                         packet_type, RTE_BE_TO_CPU_16(udp_hdr->dst_port),
 199                                         rte_be_to_cpu_32(vxlan_hdr->vx_vni) >> 8);
 200                         }
 201                 }
 202                 printf(" - Receive queue=0x%x", (unsigned) fs->rx_queue);
 203                 printf("\n");
 204                 if (ol_flags != 0) {
 205                         unsigned rxf;
 206                         const char *name;
 207
 208                         for (rxf = 0; rxf < sizeof(mb->ol_flags) * 8; rxf++) {
 209                                 if ((ol_flags & (1ULL << rxf)) == 0)
 210                                         continue;
 211                                 name = rte_get_rx_ol_flag_name(1ULL << rxf);
 212                                 if (name == NULL)
 213                                         continue;
 214                                 printf("  %s\n", name);
 215                         }
 216                 }
 217                 rte_pktmbuf_free(mb);
 218         }
 219
 220 #ifdef RTE_TEST_PMD_RECORD_CORE_CYCLES
 221         end_tsc = rte_rdtsc();
 222         core_cycles = (end_tsc - start_tsc);
 223         fs->core_cycles = (uint64_t) (fs->core_cycles + core_cycles);
 224 #endif
 225 }
 226
 227 struct fwd_engine rx_only_engine = {
 228         .fwd_mode_name  = "rxonly",
 229         .port_fwd_begin = NULL,
 230         .port_fwd_end   = NULL,
 231         .packet_fwd     = pkt_burst_receive,
 232 };