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44 #include <rte_lcore.h>
45 #include <rte_memory.h>
48 #include "eal_thread.h"
50 RTE_DECLARE_PER_LCORE(unsigned , _socket_id);
52 unsigned rte_socket_id(void)
54 return RTE_PER_LCORE(_socket_id);
58 rte_lcore_has_role(unsigned int lcore_id, enum rte_lcore_role_t role)
60 struct rte_config *cfg = rte_eal_get_configuration();
62 if (lcore_id >= RTE_MAX_LCORE)
65 if (cfg->lcore_role[lcore_id] == role)
71 int eal_cpuset_socket_id(rte_cpuset_t *cpusetp)
74 int socket_id = SOCKET_ID_ANY;
81 if (!CPU_ISSET(cpu, cpusetp))
84 if (socket_id == SOCKET_ID_ANY)
85 socket_id = eal_cpu_socket_id(cpu);
87 sid = eal_cpu_socket_id(cpu);
88 if (socket_id != sid) {
89 socket_id = SOCKET_ID_ANY;
93 } while (++cpu < RTE_MAX_LCORE);
99 rte_thread_set_affinity(rte_cpuset_t *cpusetp)
105 tid = pthread_self();
107 s = pthread_setaffinity_np(tid, sizeof(rte_cpuset_t), cpusetp);
109 RTE_LOG(ERR, EAL, "pthread_setaffinity_np failed\n");
113 /* store socket_id in TLS for quick access */
114 RTE_PER_LCORE(_socket_id) =
115 eal_cpuset_socket_id(cpusetp);
117 /* store cpuset in TLS for quick access */
118 memmove(&RTE_PER_LCORE(_cpuset), cpusetp,
119 sizeof(rte_cpuset_t));
121 lcore_id = rte_lcore_id();
122 if (lcore_id != (unsigned)LCORE_ID_ANY) {
123 /* EAL thread will update lcore_config */
124 lcore_config[lcore_id].socket_id = RTE_PER_LCORE(_socket_id);
125 memmove(&lcore_config[lcore_id].cpuset, cpusetp,
126 sizeof(rte_cpuset_t));
133 rte_thread_get_affinity(rte_cpuset_t *cpusetp)
136 memmove(cpusetp, &RTE_PER_LCORE(_cpuset),
137 sizeof(rte_cpuset_t));
141 eal_thread_dump_affinity(char *str, unsigned size)
146 unsigned int out = 0;
148 rte_thread_get_affinity(&cpuset);
150 for (cpu = 0; cpu < RTE_MAX_LCORE; cpu++) {
151 if (!CPU_ISSET(cpu, &cpuset))
154 ret = snprintf(str + out,
155 size - out, "%u,", cpu);
156 if (ret < 0 || (unsigned)ret >= size - out) {
157 /* string will be truncated */
167 /* remove the last separator */
175 struct rte_thread_ctrl_params {
176 void *(*start_routine)(void *);
178 pthread_barrier_t launched;
179 pthread_barrier_t configured;
182 static void *rte_thread_init(void *arg)
184 struct rte_thread_ctrl_params *params = arg;
185 void *(*start_routine)(void *) = params->start_routine;
186 void *routine_arg = params->arg;
188 pthread_barrier_wait(¶ms->launched);
189 pthread_barrier_wait(¶ms->configured);
191 return start_routine(routine_arg);
194 int rte_ctrl_thread_create(pthread_t *thread, const char *name,
195 const pthread_attr_t *attr,
196 void *(*start_routine)(void *), void *arg)
198 struct rte_thread_ctrl_params params = {
199 .start_routine = start_routine,
204 pthread_barrier_init(¶ms.launched, NULL, 2);
205 pthread_barrier_init(¶ms.configured, NULL, 2);
207 ret = pthread_create(thread, attr, rte_thread_init, (void *)¶ms);
211 pthread_barrier_wait(¶ms.launched);
214 ret = rte_thread_setname(*thread, name);
219 pthread_barrier_wait(¶ms.configured);
224 pthread_kill(*thread, SIGTERM);
225 pthread_join(*thread, NULL);