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 <stdint.h> 36 #include <sys/queue.h> 37 38 #include <rte_common.h> 39 #include <rte_memory.h> 40 #include <rte_memzone.h> 41 #include <rte_per_lcore.h> 42 #include <rte_launch.h> 43 #include <rte_tailq.h> 44 #include <rte_eal.h> 45 #include <rte_per_lcore.h> 46 #include <rte_lcore.h> 47 #include <rte_cycles.h> 48 49 #include "test.h" 50 51 /* 52 * Per-lcore variables and lcore launch 53 * ==================================== 54 * 55 * - Use ``rte_eal_mp_remote_launch()`` to call ``assign_vars()`` on 56 * every available lcore. In this function, a per-lcore variable is 57 * assigned to the lcore_id. 58 * 59 * - Use ``rte_eal_mp_remote_launch()`` to call ``display_vars()`` on 60 * every available lcore. The function checks that the variable is 61 * correctly set, or returns -1. 62 * 63 * - If at least one per-core variable was not correct, the test function 64 * returns -1. 65 */ 66 67 static RTE_DEFINE_PER_LCORE(unsigned, test) = 0x12345678; 68 69 static int 70 assign_vars(__attribute__((unused)) void *arg) 71 { 72 if (RTE_PER_LCORE(test) != 0x12345678) 73 return -1; 74 RTE_PER_LCORE(test) = rte_lcore_id(); 75 return 0; 76 } 77 78 static int 79 display_vars(__attribute__((unused)) void *arg) 80 { 81 unsigned lcore_id = rte_lcore_id(); 82 unsigned var = RTE_PER_LCORE(test); 83 unsigned socket_id = rte_lcore_to_socket_id(lcore_id); 84 85 printf("on socket %u, on core %u, variable is %u\n", socket_id, lcore_id, var); 86 if (lcore_id != var) 87 return -1; 88 89 RTE_PER_LCORE(test) = 0x12345678; 90 return 0; 91 } 92 93 static int 94 test_per_lcore_delay(__attribute__((unused)) void *arg) 95 { 96 rte_delay_ms(5000); 97 printf("wait 5000ms on lcore %u\n", rte_lcore_id()); 98 99 return 0; 100 } 101 102 static int 103 test_per_lcore(void) 104 { 105 unsigned lcore_id; 106 int ret; 107 108 rte_eal_mp_remote_launch(assign_vars, NULL, SKIP_MASTER); 109 RTE_LCORE_FOREACH_SLAVE(lcore_id) { 110 if (rte_eal_wait_lcore(lcore_id) < 0) 111 return -1; 112 } 113 114 rte_eal_mp_remote_launch(display_vars, NULL, SKIP_MASTER); 115 RTE_LCORE_FOREACH_SLAVE(lcore_id) { 116 if (rte_eal_wait_lcore(lcore_id) < 0) 117 return -1; 118 } 119 120 /* test if it could do remote launch twice at the same time or not */ 121 ret = rte_eal_mp_remote_launch(test_per_lcore_delay, NULL, SKIP_MASTER); 122 if (ret < 0) { 123 printf("It fails to do remote launch but it should able to do\n"); 124 return -1; 125 } 126 /* it should not be able to launch a lcore which is running */ 127 ret = rte_eal_mp_remote_launch(test_per_lcore_delay, NULL, SKIP_MASTER); 128 if (ret == 0) { 129 printf("It does remote launch successfully but it should not at this time\n"); 130 return -1; 131 } 132 RTE_LCORE_FOREACH_SLAVE(lcore_id) { 133 if (rte_eal_wait_lcore(lcore_id) < 0) 134 return -1; 135 } 136 137 return 0; 138 } 139 140 static struct test_command per_lcore_cmd = { 141 .command = "per_lcore_autotest", 142 .callback = test_per_lcore, 143 }; 144 REGISTER_TEST_COMMAND(per_lcore_cmd); 145