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_eal.h>
  55 #include <rte_per_lcore.h>
  56 #include <rte_lcore.h>
  57 #include <rte_atomic.h>
  58 #include <rte_branch_prediction.h>
  59 #include <rte_ring.h>
  60 #include <rte_memory.h>
  61 #include <rte_mempool.h>
  62 #include <rte_mbuf.h>
  63 #include <rte_interrupts.h>
  64 #include <rte_pci.h>
  65 #include <rte_ether.h>
  66 #include <rte_ethdev.h>
  67 #include <rte_string_fns.h>
  68 #include <rte_ip.h>
  69 #include <rte_udp.h>
  70
  71 #include "testpmd.h"
  72
  73 static inline void
  74 print_ether_addr(const char *what, struct ether_addr *eth_addr)
  75 {
  76         char buf[ETHER_ADDR_FMT_SIZE];
  77         ether_format_addr(buf, ETHER_ADDR_FMT_SIZE, eth_addr);
  78         printf("%s%s", what, buf);
  79 }
  80
  81 /*
  82  * Received a burst of packets.
  83  */
  84 static void
  85 pkt_burst_receive(struct fwd_stream *fs)
  86 {
  87         struct rte_mbuf  *pkts_burst[MAX_PKT_BURST];
  88         struct rte_mbuf  *mb;
  89         struct ether_hdr *eth_hdr;
  90         uint16_t eth_type;
  91         uint64_t ol_flags;
  92         uint16_t nb_rx;
  93         uint16_t i, packet_type;
  94         uint64_t is_encapsulation;
  95
  96 #ifdef RTE_TEST_PMD_RECORD_CORE_CYCLES
  97         uint64_t start_tsc;
  98         uint64_t end_tsc;
  99         uint64_t core_cycles;
 100 #endif
 101
 102 #ifdef RTE_TEST_PMD_RECORD_CORE_CYCLES
 103         start_tsc = rte_rdtsc();
 104 #endif
 105
 106         /*
 107          * Receive a burst of packets.
 108          */
 109         nb_rx = rte_eth_rx_burst(fs->rx_port, fs->rx_queue, pkts_burst,
 110                                  nb_pkt_per_burst);
 111         if (unlikely(nb_rx == 0))
 112                 return;
 113
 114 #ifdef RTE_TEST_PMD_RECORD_BURST_STATS
 115         fs->rx_burst_stats.pkt_burst_spread[nb_rx]++;
 116 #endif
 117         fs->rx_packets += nb_rx;
 118
 119         /*
 120          * Dump each received packet if verbose_level > 0.
 121          */
 122         if (verbose_level > 0)
 123                 printf("port %u/queue %u: received %u packets\n",
 124                        (unsigned) fs->rx_port,
 125                        (unsigned) fs->rx_queue,
 126                        (unsigned) nb_rx);
 127         for (i = 0; i < nb_rx; i++) {
 128                 mb = pkts_burst[i];
 129                 if (verbose_level == 0) {
 130                         rte_pktmbuf_free(mb);
 131                         continue;
 132                 }
 133                 eth_hdr = rte_pktmbuf_mtod(mb, struct ether_hdr *);
 134                 eth_type = RTE_BE_TO_CPU_16(eth_hdr->ether_type);
 135                 ol_flags = mb->ol_flags;
 136                 packet_type = mb->packet_type;
 137
 138                 is_encapsulation = ol_flags & (PKT_RX_TUNNEL_IPV4_HDR |
 139                                 PKT_RX_TUNNEL_IPV6_HDR);
 140
 141                 print_ether_addr("  src=", &eth_hdr->s_addr);
 142                 print_ether_addr(" - dst=", &eth_hdr->d_addr);
 143                 printf(" - type=0x%04x - length=%u - nb_segs=%d",
 144                        eth_type, (unsigned) mb->pkt_len,
 145                        (int)mb->nb_segs);
 146                 if (ol_flags & PKT_RX_RSS_HASH) {
 147                         printf(" - RSS hash=0x%x", (unsigned) mb->hash.rss);
 148                         printf(" - RSS queue=0x%x",(unsigned) fs->rx_queue);
 149                 } else if (ol_flags & PKT_RX_FDIR) {
 150                         printf(" - FDIR matched ");
 151                         if (ol_flags & PKT_RX_FDIR_ID)
 152                                 printf("ID=0x%x",
 153                                        mb->hash.fdir.hi);
 154                         else if (ol_flags & PKT_RX_FDIR_FLX)
 155                                 printf("flex bytes=0x%08x %08x",
 156                                        mb->hash.fdir.hi, mb->hash.fdir.lo);
 157                         else
 158                                 printf("hash=0x%x ID=0x%x ",
 159                                        mb->hash.fdir.hash, mb->hash.fdir.id);
 160                 }
 161                 if (ol_flags & PKT_RX_VLAN_PKT)
 162                         printf(" - VLAN tci=0x%x", mb->vlan_tci);
 163                 if (is_encapsulation) {
 164                         struct ipv4_hdr *ipv4_hdr;
 165                         struct ipv6_hdr *ipv6_hdr;
 166                         struct udp_hdr *udp_hdr;
 167                         uint8_t l2_len;
 168                         uint8_t l3_len;
 169                         uint8_t l4_len;
 170                         uint8_t l4_proto;
 171                         struct  vxlan_hdr *vxlan_hdr;
 172
 173                         l2_len  = sizeof(struct ether_hdr);
 174
 175                          /* Do not support ipv4 option field */
 176                         if (ol_flags & PKT_RX_TUNNEL_IPV4_HDR) {
 177                                 l3_len = sizeof(struct ipv4_hdr);
 178                                 ipv4_hdr = (struct ipv4_hdr *) (rte_pktmbuf_mtod(mb,
 179                                                 unsigned char *) + l2_len);
 180                                 l4_proto = ipv4_hdr->next_proto_id;
 181                         } else {
 182                                 l3_len = sizeof(struct ipv6_hdr);
 183                                 ipv6_hdr = (struct ipv6_hdr *) (rte_pktmbuf_mtod(mb,
 184                                                 unsigned char *) + l2_len);
 185                                 l4_proto = ipv6_hdr->proto;
 186                         }
 187                         if (l4_proto == IPPROTO_UDP) {
 188                                 udp_hdr = (struct udp_hdr *) (rte_pktmbuf_mtod(mb,
 189                                                 unsigned char *) + l2_len + l3_len);
 190                                 l4_len = sizeof(struct udp_hdr);
 191                                 vxlan_hdr = (struct vxlan_hdr *) (rte_pktmbuf_mtod(mb,
 192                                                 unsigned char *) + l2_len + l3_len
 193                                                  + l4_len);
 194
 195                                 printf(" - VXLAN packet: packet type =%d, "
 196                                         "Destination UDP port =%d, VNI = %d",
 197                                         packet_type, RTE_BE_TO_CPU_16(udp_hdr->dst_port),
 198                                         rte_be_to_cpu_32(vxlan_hdr->vx_vni) >> 8);
 199                         }
 200                 }
 201                 printf(" - Receive queue=0x%x", (unsigned) fs->rx_queue);
 202                 printf("\n");
 203                 if (ol_flags != 0) {
 204                         unsigned rxf;
 205                         const char *name;
 206
 207                         for (rxf = 0; rxf < sizeof(mb->ol_flags) * 8; rxf++) {
 208                                 if ((ol_flags & (1ULL << rxf)) == 0)
 209                                         continue;
 210                                 name = rte_get_rx_ol_flag_name(1ULL << rxf);
 211                                 if (name == NULL)
 212                                         continue;
 213                                 printf("  %s\n", name);
 214                         }
 215                 }
 216                 rte_pktmbuf_free(mb);
 217         }
 218
 219 #ifdef RTE_TEST_PMD_RECORD_CORE_CYCLES
 220         end_tsc = rte_rdtsc();
 221         core_cycles = (end_tsc - start_tsc);
 222         fs->core_cycles = (uint64_t) (fs->core_cycles + core_cycles);
 223 #endif
 224 }
 225
 226 struct fwd_engine rx_only_engine = {
 227         .fwd_mode_name  = "rxonly",
 228         .port_fwd_begin = NULL,
 229         .port_fwd_end   = NULL,
 230         .packet_fwd     = pkt_burst_receive,
 231 };