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41 * API for lcore and Socket Manipulation. Parts of this are execution
42 * environment specific.
45 #include <rte_per_lcore.h>
47 #include <rte_launch.h>
53 #define LCORE_ID_ANY -1 /**< Any lcore. */
55 RTE_DECLARE_PER_LCORE(unsigned, _lcore_id); /**< Per core "core id". */
58 * Return the ID of the execution unit we are running on.
62 static inline unsigned
65 return RTE_PER_LCORE(_lcore_id);
69 * Get the id of the master lcore
72 * the id of the master lcore
74 static inline unsigned
75 rte_get_master_lcore(void)
77 return rte_eal_get_configuration()->master_lcore;
81 * Return the number of execution units (lcores) on the system.
84 * the number of execution units (lcores) on the system.
86 static inline unsigned
89 const struct rte_config *cfg = rte_eal_get_configuration();
90 return cfg->lcore_count;
93 #include <exec-env/rte_lcore.h>
96 * Return the ID of the physical socket of the logical core we are
99 * the ID of current lcoreid's physical socket
101 static inline unsigned
104 return lcore_config[rte_lcore_id()].socket_id;
108 * Get the ID of the physical socket of the specified lcore
111 * the targeted lcore, which MUST be between 0 and RTE_MAX_LCORE-1.
113 * the ID of lcoreid's physical socket
115 static inline unsigned
116 rte_lcore_to_socket_id(unsigned lcore_id)
118 return lcore_config[lcore_id].socket_id;
122 * Test if an lcore is enabled.
125 * The identifier of the lcore, which MUST be between 0 and
128 * True if the given lcore is enabled; false otherwise.
131 rte_lcore_is_enabled(unsigned lcore_id)
133 struct rte_config *cfg = rte_eal_get_configuration();
134 if (lcore_id >= RTE_MAX_LCORE)
136 return (cfg->lcore_role[lcore_id] != ROLE_OFF);
140 * Get the next enabled lcore ID.
143 * The current lcore (reference).
145 * If true, do not return the ID of the master lcore.
147 * If true, go back to 0 when RTE_MAX_LCORE is reached; otherwise,
148 * return RTE_MAX_LCORE.
150 * The next lcore_id or RTE_MAX_LCORE if not found.
152 static inline unsigned
153 rte_get_next_lcore(unsigned i, int skip_master, int wrap)
159 while (i < RTE_MAX_LCORE) {
160 if (!rte_lcore_is_enabled(i) ||
161 (skip_master && (i == rte_get_master_lcore()))) {
172 * Macro to browse all running lcores.
174 #define RTE_LCORE_FOREACH(i) \
175 for (i = rte_get_next_lcore(-1, 0, 0); \
177 i = rte_get_next_lcore(i, 0, 0))
180 * Macro to browse all running lcores except the master lcore.
182 #define RTE_LCORE_FOREACH_SLAVE(i) \
183 for (i = rte_get_next_lcore(-1, 1, 0); \
185 i = rte_get_next_lcore(i, 1, 0))
192 #endif /* _RTE_LCORE_H_ */