#define LCORE_ID_ANY UINT32_MAX /**< Any lcore. */
-#if defined(__linux__)
- typedef cpu_set_t rte_cpuset_t;
-#elif defined(__FreeBSD__)
-#include <pthread_np.h>
- typedef cpuset_t rte_cpuset_t;
-#endif
-
-/**
- * Structure storing internal configuration (per-lcore)
- */
-struct lcore_config {
- unsigned detected; /**< true if lcore was detected */
- pthread_t thread_id; /**< pthread identifier */
- int pipe_master2slave[2]; /**< communication pipe with master */
- int pipe_slave2master[2]; /**< communication pipe with master */
- lcore_function_t * volatile f; /**< function to call */
- void * volatile arg; /**< argument of function */
- volatile int ret; /**< return value of function */
- volatile enum rte_lcore_state_t state; /**< lcore state */
- unsigned socket_id; /**< physical socket id for this lcore */
- unsigned core_id; /**< core number on socket for this lcore */
- int core_index; /**< relative index, starting from 0 */
- rte_cpuset_t cpuset; /**< cpu set which the lcore affinity to */
- uint8_t core_role; /**< role of core eg: OFF, RTE, SERVICE */
-};
+RTE_DECLARE_PER_LCORE(unsigned, _lcore_id); /**< Per thread "lcore id". */
+RTE_DECLARE_PER_LCORE(rte_cpuset_t, _cpuset); /**< Per thread "cpuset". */
/**
- * Internal configuration (per-lcore)
+ * Get a lcore's role.
+ *
+ * @param lcore_id
+ * The identifier of the lcore, which MUST be between 0 and RTE_MAX_LCORE-1.
+ * @return
+ * The role of the lcore.
*/
-extern struct lcore_config lcore_config[RTE_MAX_LCORE];
-
-RTE_DECLARE_PER_LCORE(unsigned, _lcore_id); /**< Per thread "lcore id". */
-RTE_DECLARE_PER_LCORE(rte_cpuset_t, _cpuset); /**< Per thread "cpuset". */
+enum rte_lcore_role_t rte_eal_lcore_role(unsigned int lcore_id);
/**
* Return the Application thread ID of the execution unit.
* @return
* the id of the master lcore
*/
-static inline unsigned
-rte_get_master_lcore(void)
-{
- return rte_eal_get_configuration()->master_lcore;
-}
+unsigned int rte_get_master_lcore(void);
/**
* Return the number of execution units (lcores) on the system.
* @return
* the number of execution units (lcores) on the system.
*/
-static inline unsigned
-rte_lcore_count(void)
-{
- const struct rte_config *cfg = rte_eal_get_configuration();
- return cfg->lcore_count;
-}
+unsigned int rte_lcore_count(void);
/**
* Return the index of the lcore starting from zero.
* @return
* The relative index, or -1 if not enabled.
*/
-static inline int
-rte_lcore_index(int lcore_id)
-{
- if (lcore_id >= RTE_MAX_LCORE)
- return -1;
- if (lcore_id < 0)
- lcore_id = rte_lcore_id();
- return lcore_config[lcore_id].core_index;
-}
+int rte_lcore_index(int lcore_id);
/**
* Return the ID of the physical socket of the logical core we are
* @return
* the ID of current lcoreid's physical socket
*/
-unsigned rte_socket_id(void);
+unsigned int rte_socket_id(void);
/**
* Return number of physical sockets detected on the system.
* @return
* the number of physical sockets as recognized by EAL
*/
-unsigned int __rte_experimental
+unsigned int
rte_socket_count(void);
/**
* - physical socket id as recognized by EAL
* - -1 on error, with errno set to EINVAL
*/
-int __rte_experimental
+int
rte_socket_id_by_idx(unsigned int idx);
/**
* @return
* the ID of lcoreid's physical socket
*/
-static inline unsigned
-rte_lcore_to_socket_id(unsigned lcore_id)
-{
- return lcore_config[lcore_id].socket_id;
-}
+unsigned int
+rte_lcore_to_socket_id(unsigned int lcore_id);
+
+/**
+ * @warning
+ * @b EXPERIMENTAL: this API may change without prior notice.
+ *
+ * Return the id of the lcore on a socket starting from zero.
+ *
+ * @param lcore_id
+ * The targeted lcore, or -1 for the current one.
+ * @return
+ * The relative index, or -1 if not enabled.
+ */
+__rte_experimental
+int
+rte_lcore_to_cpu_id(int lcore_id);
+
+/**
+ * @warning
+ * @b EXPERIMENTAL: this API may change without prior notice.
+ *
+ * Return the cpuset for a given lcore.
+ * @param lcore_id
+ * the targeted lcore, which MUST be between 0 and RTE_MAX_LCORE-1.
+ * @return
+ * The cpuset of that lcore
+ */
+__rte_experimental
+rte_cpuset_t
+rte_lcore_cpuset(unsigned int lcore_id);
/**
* Test if an lcore is enabled.
* @return
* True if the given lcore is enabled; false otherwise.
*/
-static inline int
-rte_lcore_is_enabled(unsigned lcore_id)
-{
- struct rte_config *cfg = rte_eal_get_configuration();
- if (lcore_id >= RTE_MAX_LCORE)
- return 0;
- return cfg->lcore_role[lcore_id] == ROLE_RTE;
-}
+int rte_lcore_is_enabled(unsigned int lcore_id);
/**
* Get the next enabled lcore ID.
* @return
* The next lcore_id or RTE_MAX_LCORE if not found.
*/
-static inline unsigned
-rte_get_next_lcore(unsigned i, int skip_master, int wrap)
-{
- i++;
- if (wrap)
- i %= RTE_MAX_LCORE;
+unsigned int rte_get_next_lcore(unsigned int i, int skip_master, int wrap);
- while (i < RTE_MAX_LCORE) {
- if (!rte_lcore_is_enabled(i) ||
- (skip_master && (i == rte_get_master_lcore()))) {
- i++;
- if (wrap)
- i %= RTE_MAX_LCORE;
- continue;
- }
- break;
- }
- return i;
-}
/**
* Macro to browse all running lcores.
*/
* Create a control thread.
*
* Wrapper to pthread_create(), pthread_setname_np() and
- * pthread_setaffinity_np(). The dataplane and service lcores are
- * excluded from the affinity of the new thread.
+ * pthread_setaffinity_np(). The affinity of the new thread is based
+ * on the CPU affinity retrieved at the time rte_eal_init() was called,
+ * the dataplane and service lcores are then excluded.
*
* @param thread
* Filled with the thread id of the new created thread.
* On success, returns 0; on error, it returns a negative value
* corresponding to the error number.
*/
-__rte_experimental int
+int
rte_ctrl_thread_create(pthread_t *thread, const char *name,
const pthread_attr_t *attr,
void *(*start_routine)(void *), void *arg);
git.droids-corp.org / dpdk.git / blobdiff