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 <stdio.h> 35 #include <stdlib.h> 36 #include <stdint.h> 37 #include <inttypes.h> 38 #include <sys/types.h> 39 #include <string.h> 40 #include <sys/queue.h> 41 #include <stdarg.h> 42 #include <errno.h> 43 #include <getopt.h> 44 45 #include <rte_common.h> 46 #include <rte_byteorder.h> 47 #include <rte_log.h> 48 #include <rte_memory.h> 49 #include <rte_memcpy.h> 50 #include <rte_memzone.h> 51 #include <rte_eal.h> 52 #include <rte_per_lcore.h> 53 #include <rte_launch.h> 54 #include <rte_atomic.h> 55 #include <rte_cycles.h> 56 #include <rte_prefetch.h> 57 #include <rte_lcore.h> 58 #include <rte_per_lcore.h> 59 #include <rte_branch_prediction.h> 60 #include <rte_interrupts.h> 61 #include <rte_pci.h> 62 #include <rte_random.h> 63 #include <rte_debug.h> 64 #include <rte_ether.h> 65 #include <rte_ethdev.h> 66 #include <rte_ring.h> 67 #include <rte_mempool.h> 68 #include <rte_mbuf.h> 69 #include <rte_ip.h> 70 #include <rte_tcp.h> 71 #include <rte_lpm.h> 72 #include <rte_lpm6.h> 73 #include <rte_malloc.h> 74 75 #include "main.h" 76 77 void 78 app_main_loop_rx(void) { 79 uint32_t i; 80 int ret; 81 82 RTE_LOG(INFO, USER1, "Core %u is doing RX\n", rte_lcore_id()); 83 84 for (i = 0; ; i = ((i + 1) & (app.n_ports - 1))) { 85 uint16_t n_mbufs; 86 87 n_mbufs = rte_eth_rx_burst( 88 app.ports[i], 89 0, 90 app.mbuf_rx.array, 91 app.burst_size_rx_read); 92 93 if (n_mbufs == 0) 94 continue; 95 96 do { 97 ret = rte_ring_sp_enqueue_bulk( 98 app.rings_rx[i], 99 (void **) app.mbuf_rx.array, 100 n_mbufs); 101 } while (ret < 0); 102 } 103 } 104 105 void 106 app_main_loop_worker(void) { 107 struct app_mbuf_array *worker_mbuf; 108 uint32_t i; 109 110 RTE_LOG(INFO, USER1, "Core %u is doing work (no pipeline)\n", 111 rte_lcore_id()); 112 113 worker_mbuf = rte_malloc_socket(NULL, sizeof(struct app_mbuf_array), 114 RTE_CACHE_LINE_SIZE, rte_socket_id()); 115 if (worker_mbuf == NULL) 116 rte_panic("Worker thread: cannot allocate buffer space\n"); 117 118 for (i = 0; ; i = ((i + 1) & (app.n_ports - 1))) { 119 int ret; 120 121 ret = rte_ring_sc_dequeue_bulk( 122 app.rings_rx[i], 123 (void **) worker_mbuf->array, 124 app.burst_size_worker_read); 125 126 if (ret == -ENOENT) 127 continue; 128 129 do { 130 ret = rte_ring_sp_enqueue_bulk( 131 app.rings_tx[i ^ 1], 132 (void **) worker_mbuf->array, 133 app.burst_size_worker_write); 134 } while (ret < 0); 135 } 136 } 137 138 void 139 app_main_loop_tx(void) { 140 uint32_t i; 141 142 RTE_LOG(INFO, USER1, "Core %u is doing TX\n", rte_lcore_id()); 143 144 for (i = 0; ; i = ((i + 1) & (app.n_ports - 1))) { 145 uint16_t n_mbufs, n_pkts; 146 int ret; 147 148 n_mbufs = app.mbuf_tx[i].n_mbufs; 149 150 ret = rte_ring_sc_dequeue_bulk( 151 app.rings_tx[i], 152 (void **) &app.mbuf_tx[i].array[n_mbufs], 153 app.burst_size_tx_read); 154 155 if (ret == -ENOENT) 156 continue; 157 158 n_mbufs += app.burst_size_tx_read; 159 160 if (n_mbufs < app.burst_size_tx_write) { 161 app.mbuf_tx[i].n_mbufs = n_mbufs; 162 continue; 163 } 164 165 n_pkts = rte_eth_tx_burst( 166 app.ports[i], 167 0, 168 app.mbuf_tx[i].array, 169 n_mbufs); 170 171 if (n_pkts < n_mbufs) { 172 uint16_t k; 173 174 for (k = n_pkts; k < n_mbufs; k++) { 175 struct rte_mbuf *pkt_to_free; 176 177 pkt_to_free = app.mbuf_tx[i].array[k]; 178 rte_pktmbuf_free(pkt_to_free); 179 } 180 } 181 182 app.mbuf_tx[i].n_mbufs = 0; 183 } 184 } 185