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 #define MAX_PKT_RX_FLAGS 13
  75 static const char *pkt_rx_flag_names[MAX_PKT_RX_FLAGS] = {
  76         "VLAN_PKT",
  77         "RSS_HASH",
  78         "PKT_RX_FDIR",
  79         "IP_CKSUM",
  80         "IP_CKSUM_BAD",
  81
  82         "IPV4_HDR",
  83         "IPV4_HDR_EXT",
  84         "IPV6_HDR",
  85         "IPV6_HDR_EXT",
  86
  87         "IEEE1588_PTP",
  88         "IEEE1588_TMST",
  89
  90         "TUNNEL_IPV4_HDR",
  91         "TUNNEL_IPV6_HDR",
  92 };
  93
  94 static inline void
  95 print_ether_addr(const char *what, struct ether_addr *eth_addr)
  96 {
  97         printf("%s%02X:%02X:%02X:%02X:%02X:%02X",
  98                what,
  99                eth_addr->addr_bytes[0],
 100                eth_addr->addr_bytes[1],
 101                eth_addr->addr_bytes[2],
 102                eth_addr->addr_bytes[3],
 103                eth_addr->addr_bytes[4],
 104                eth_addr->addr_bytes[5]);
 105 }
 106
 107 /*
 108  * Received a burst of packets.
 109  */
 110 static void
 111 pkt_burst_receive(struct fwd_stream *fs)
 112 {
 113         struct rte_mbuf  *pkts_burst[MAX_PKT_BURST];
 114         struct rte_mbuf  *mb;
 115         struct ether_hdr *eth_hdr;
 116         uint16_t eth_type;
 117         uint64_t ol_flags;
 118         uint16_t nb_rx;
 119         uint16_t i, packet_type;
 120         uint64_t is_encapsulation;
 121
 122 #ifdef RTE_TEST_PMD_RECORD_CORE_CYCLES
 123         uint64_t start_tsc;
 124         uint64_t end_tsc;
 125         uint64_t core_cycles;
 126 #endif
 127
 128 #ifdef RTE_TEST_PMD_RECORD_CORE_CYCLES
 129         start_tsc = rte_rdtsc();
 130 #endif
 131
 132         /*
 133          * Receive a burst of packets.
 134          */
 135         nb_rx = rte_eth_rx_burst(fs->rx_port, fs->rx_queue, pkts_burst,
 136                                  nb_pkt_per_burst);
 137         if (unlikely(nb_rx == 0))
 138                 return;
 139
 140 #ifdef RTE_TEST_PMD_RECORD_BURST_STATS
 141         fs->rx_burst_stats.pkt_burst_spread[nb_rx]++;
 142 #endif
 143         fs->rx_packets += nb_rx;
 144
 145         /*
 146          * Dump each received packet if verbose_level > 0.
 147          */
 148         if (verbose_level > 0)
 149                 printf("port %u/queue %u: received %u packets\n",
 150                        (unsigned) fs->rx_port,
 151                        (unsigned) fs->rx_queue,
 152                        (unsigned) nb_rx);
 153         for (i = 0; i < nb_rx; i++) {
 154                 mb = pkts_burst[i];
 155                 if (verbose_level == 0) {
 156                         rte_pktmbuf_free(mb);
 157                         continue;
 158                 }
 159                 eth_hdr = rte_pktmbuf_mtod(mb, struct ether_hdr *);
 160                 eth_type = RTE_BE_TO_CPU_16(eth_hdr->ether_type);
 161                 ol_flags = mb->ol_flags;
 162                 packet_type = mb->packet_type;
 163
 164                 is_encapsulation = ol_flags & (PKT_RX_TUNNEL_IPV4_HDR |
 165                                 PKT_RX_TUNNEL_IPV6_HDR);
 166
 167                 print_ether_addr("  src=", &eth_hdr->s_addr);
 168                 print_ether_addr(" - dst=", &eth_hdr->d_addr);
 169                 printf(" - type=0x%04x - length=%u - nb_segs=%d",
 170                        eth_type, (unsigned) mb->pkt_len,
 171                        (int)mb->nb_segs);
 172                 if (ol_flags & PKT_RX_RSS_HASH) {
 173                         printf(" - RSS hash=0x%x", (unsigned) mb->hash.rss);
 174                         printf(" - RSS queue=0x%x",(unsigned) fs->rx_queue);
 175                 }
 176                 else if (ol_flags & PKT_RX_FDIR)
 177                         printf(" - FDIR hash=0x%x - FDIR id=0x%x ",
 178                                mb->hash.fdir.hash, mb->hash.fdir.id);
 179                 if (ol_flags & PKT_RX_VLAN_PKT)
 180                         printf(" - VLAN tci=0x%x", mb->vlan_tci);
 181                 if (is_encapsulation) {
 182                         struct ipv4_hdr *ipv4_hdr;
 183                         struct ipv6_hdr *ipv6_hdr;
 184                         struct udp_hdr *udp_hdr;
 185                         uint8_t l2_len;
 186                         uint8_t l3_len;
 187                         uint8_t l4_len;
 188                         uint8_t l4_proto;
 189                         struct  vxlan_hdr *vxlan_hdr;
 190
 191                         l2_len  = sizeof(struct ether_hdr);
 192
 193                          /* Do not support ipv4 option field */
 194                         if (ol_flags & PKT_RX_TUNNEL_IPV4_HDR) {
 195                                 l3_len = sizeof(struct ipv4_hdr);
 196                                 ipv4_hdr = (struct ipv4_hdr *) (rte_pktmbuf_mtod(mb,
 197                                                 unsigned char *) + l2_len);
 198                                 l4_proto = ipv4_hdr->next_proto_id;
 199                         } else {
 200                                 l3_len = sizeof(struct ipv6_hdr);
 201                                 ipv6_hdr = (struct ipv6_hdr *) (rte_pktmbuf_mtod(mb,
 202                                                 unsigned char *) + l2_len);
 203                                 l4_proto = ipv6_hdr->proto;
 204                         }
 205                         if (l4_proto == IPPROTO_UDP) {
 206                                 udp_hdr = (struct udp_hdr *) (rte_pktmbuf_mtod(mb,
 207                                                 unsigned char *) + l2_len + l3_len);
 208                                 l4_len = sizeof(struct udp_hdr);
 209                                 vxlan_hdr = (struct vxlan_hdr *) (rte_pktmbuf_mtod(mb,
 210                                                 unsigned char *) + l2_len + l3_len
 211                                                  + l4_len);
 212
 213                                 printf(" - VxLAN packet: packet type =%d, "
 214                                         "Destination UDP port =%d, VNI = %d",
 215                                         packet_type, RTE_BE_TO_CPU_16(udp_hdr->dst_port),
 216                                         rte_be_to_cpu_32(vxlan_hdr->vx_vni) >> 8);
 217                         }
 218                 }
 219                 printf(" - Receive queue=0x%x", (unsigned) fs->rx_queue);
 220                 printf("\n");
 221                 if (ol_flags != 0) {
 222                         int rxf;
 223
 224                         for (rxf = 0; rxf < MAX_PKT_RX_FLAGS; rxf++) {
 225                                 if (ol_flags & (1 << rxf))
 226                                         printf("  PKT_RX_%s\n",
 227                                                pkt_rx_flag_names[rxf]);
 228                         }
 229                 }
 230                 rte_pktmbuf_free(mb);
 231         }
 232
 233 #ifdef RTE_TEST_PMD_RECORD_CORE_CYCLES
 234         end_tsc = rte_rdtsc();
 235         core_cycles = (end_tsc - start_tsc);
 236         fs->core_cycles = (uint64_t) (fs->core_cycles + core_cycles);
 237 #endif
 238 }
 239
 240 struct fwd_engine rx_only_engine = {
 241         .fwd_mode_name  = "rxonly",
 242         .port_fwd_begin = NULL,
 243         .port_fwd_end   = NULL,
 244         .packet_fwd     = pkt_burst_receive,
 245 };