/*-
* BSD LICENSE
*
- * Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+ * Copyright(c) 2010-2016 Intel Corporation. All rights reserved.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
*/
#include <stdint.h>
+#include <sched.h>
+
+#include <rte_per_lcore.h>
+#include <rte_bus.h>
+
+#include <rte_pci_dev_feature_defs.h>
#ifdef __cplusplus
extern "C" {
#define RTE_MAGIC 19820526 /**< Magic number written by the main partition when ready. */
+/* Maximum thread_name length. */
+#define RTE_MAX_THREAD_NAME_LEN 16
+
/**
* The lcore role (used in RTE or not).
*/
enum rte_lcore_role_t {
ROLE_RTE,
ROLE_OFF,
+ ROLE_SERVICE,
};
/**
struct rte_config {
uint32_t master_lcore; /**< Id of the master lcore */
uint32_t lcore_count; /**< Number of available logical cores. */
+ uint32_t service_lcore_count;/**< Number of available service cores. */
enum rte_lcore_role_t lcore_role[RTE_MAX_LCORE]; /**< State of cores. */
/** Primary or secondary configuration */
enum rte_proc_type_t process_type;
+ /** PA or VA mapping mode */
+ enum rte_iova_mode iova_mode;
+
/**
* Pointer to memory configuration, which may be shared across multiple
- * Intel DPDK instances
+ * DPDK instances
*/
struct rte_mem_config *mem_config;
} __attribute__((__packed__));
* This function is to be executed on the MASTER lcore only, as soon
* as possible in the application's main() function.
*
- * The function finishes the initialization process that was started
- * during boot (in case of baremetal) or before main() is called (in
- * case of linuxapp). It puts the SLAVE lcores in the WAIT state.
+ * The function finishes the initialization process before main() is called.
+ * It puts the SLAVE lcores in the WAIT state.
*
* When the multi-partition feature is supported, depending on the
* configuration (if CONFIG_RTE_EAL_MAIN_PARTITION is disabled), this
* This behavior may change in the future.
*
* @param argc
- * The argc argument that was given to the main() function.
+ * A non-negative value. If it is greater than 0, the array members
+ * for argv[0] through argv[argc] (non-inclusive) shall contain pointers
+ * to strings.
* @param argv
- * The argv argument that was given to the main() function.
+ * An array of strings. The contents of the array, as well as the strings
+ * which are pointed to by the array, may be modified by this function.
* @return
* - On success, the number of parsed arguments, which is greater or
* equal to zero. After the call to rte_eal_init(),
- * all arguments argv[x] with x < ret may be modified and should
- * not be accessed by the application.
- * - On failure, a negative error value.
+ * all arguments argv[x] with x < ret may have been modified by this
+ * function call and should not be further interpreted by the
+ * application. The EAL does not take any ownership of the memory used
+ * for either the argv array, or its members.
+ * - On failure, -1 and rte_errno is set to a value indicating the cause
+ * for failure. In some instances, the application will need to be
+ * restarted as part of clearing the issue.
+ *
+ * Error codes returned via rte_errno:
+ * EACCES indicates a permissions issue.
+ *
+ * EAGAIN indicates either a bus or system resource was not available,
+ * setup may be attempted again.
+ *
+ * EALREADY indicates that the rte_eal_init function has already been
+ * called, and cannot be called again.
+ *
+ * EFAULT indicates the tailq configuration name was not found in
+ * memory configuration.
+ *
+ * EINVAL indicates invalid parameters were passed as argv/argc.
+ *
+ * ENOMEM indicates failure likely caused by an out-of-memory condition.
+ *
+ * ENODEV indicates memory setup issues.
+ *
+ * ENOTSUP indicates that the EAL cannot initialize on this system.
+ *
+ * EPROTO indicates that the PCI bus is either not present, or is not
+ * readable by the eal.
+ *
+ * ENOEXEC indicates that a service core failed to launch successfully.
*/
int rte_eal_init(int argc, char **argv);
+
+/**
+ * Check if a primary process is currently alive
+ *
+ * This function returns true when a primary process is currently
+ * active.
+ *
+ * @param config_file_path
+ * The config_file_path argument provided should point at the location
+ * that the primary process will create its config file. If NULL, the default
+ * config file path is used.
+ *
+ * @return
+ * - If alive, returns 1.
+ * - If dead, returns 0.
+ */
+int rte_eal_primary_proc_alive(const char *config_file_path);
+
/**
* Usage function typedef used by the application usage function.
*
* This routine is optional for the application and will behave as if the set
* routine was never called as the default behavior.
*
- * @param func
+ * @param usage_func
* The func argument is a function pointer to the application usage routine.
* Called function is defined using rte_usage_hook_t typedef, which is of
* the form void rte_usage_func(const char * prgname).
* the caller to daisy chain the usage routines if needing more then one.
*/
rte_usage_hook_t
-rte_set_application_usage_hook( rte_usage_hook_t usage_func );
+rte_set_application_usage_hook(rte_usage_hook_t usage_func);
/**
* macro to get the lock of tailq in mem_config
*/
#define RTE_EAL_MEMPOOL_RWLOCK (&rte_eal_get_configuration()->mem_config->mplock)
-
/**
- * Utility macro to do a thread-safe tailq 'INSERT' of rte_mem_config
- *
- * @param idx
- * a kind of tailq define in enum rte_tailq_t
- *
- * @param type
- * type of list(tailq head)
- *
- * @param elm
- * The element will be added into the list
+ * Whether EAL is using huge pages (disabled by --no-huge option).
+ * The no-huge mode cannot be used with UIO poll-mode drivers like igb/ixgbe.
+ * It is useful for NIC drivers (e.g. librte_pmd_mlx4, librte_pmd_vmxnet3) or
+ * crypto drivers (e.g. librte_crypto_nitrox) provided by third-parties such
+ * as 6WIND.
*
+ * @return
+ * Nonzero if hugepages are enabled.
*/
-#define RTE_EAL_TAILQ_INSERT_TAIL(idx, type, elm) do { \
- struct type *list; \
- list = RTE_TAILQ_LOOKUP_BY_IDX(idx, type); \
- rte_rwlock_write_lock(RTE_EAL_TAILQ_RWLOCK); \
- TAILQ_INSERT_TAIL(list, elm, next); \
- rte_rwlock_write_unlock(RTE_EAL_TAILQ_RWLOCK); \
-} while (0)
+int rte_eal_has_hugepages(void);
/**
- * Utility macro to do a thread-safe tailq 'REMOVE' of rte_mem_config
- *
- * @param idx
- * a kind of tailq define in enum rte_tailq_t
+ * Whether EAL is using PCI bus.
+ * Disabled by --no-pci option.
*
- * @param type
- * type of list(tailq head)
+ * @return
+ * Nonzero if the PCI bus is enabled.
+ */
+int rte_eal_has_pci(void);
+
+/**
+ * Whether the EAL was asked to create UIO device.
*
- * @param elm
- * The element will be remove from the list
+ * @return
+ * Nonzero if true.
+ */
+int rte_eal_create_uio_dev(void);
+
+/**
+ * The user-configured vfio interrupt mode.
*
+ * @return
+ * Interrupt mode configured with the command line,
+ * RTE_INTR_MODE_NONE by default.
*/
-#define RTE_EAL_TAILQ_REMOVE(idx, type, elm) do { \
- struct type *list; \
- list = RTE_TAILQ_LOOKUP_BY_IDX(idx, type); \
- rte_rwlock_write_lock(RTE_EAL_TAILQ_RWLOCK); \
- TAILQ_REMOVE(list, elm, next); \
- rte_rwlock_write_unlock(RTE_EAL_TAILQ_RWLOCK); \
-} while (0) \
+enum rte_intr_mode rte_eal_vfio_intr_mode(void);
+/**
+ * A wrap API for syscall gettid.
+ *
+ * @return
+ * On success, returns the thread ID of calling process.
+ * It is always successful.
+ */
+int rte_sys_gettid(void);
/**
- * macro to check TAILQ exist
+ * Get system unique thread id.
*
- * @param idx
- * a kind of tailq define in enum rte_tailq_t
+ * @return
+ * On success, returns the thread ID of calling process.
+ * It is always successful.
+ */
+static inline int rte_gettid(void)
+{
+ static RTE_DEFINE_PER_LCORE(int, _thread_id) = -1;
+ if (RTE_PER_LCORE(_thread_id) == -1)
+ RTE_PER_LCORE(_thread_id) = rte_sys_gettid();
+ return RTE_PER_LCORE(_thread_id);
+}
+
+/**
+ * Get the iova mode
*
+ * @return
+ * enum rte_iova_mode value.
*/
-#define RTE_EAL_TAILQ_EXIST_CHECK(idx) do { \
- if (RTE_TAILQ_LOOKUP_BY_IDX(idx, rte_tailq_head) == NULL){ \
- rte_errno = E_RTE_NO_TAILQ; \
- return NULL; \
- } \
-} while(0)
+enum rte_iova_mode rte_eal_iova_mode(void);
/**
- * Whether EAL is using huge pages (disabled by --no-huge option).
- * The no-huge mode cannot be used with UIO poll-mode drivers like igb/ixgbe.
- * It is useful for NIC drivers (e.g. librte_pmd_mlx4, librte_pmd_vmxnet3) or
- * crypto drivers (e.g. librte_crypto_nitrox) provided by third-parties such
- * as 6WIND.
+ * Get default pool ops name for mbuf
*
* @return
- * Nonzero if hugepages are enabled.
+ * returns default pool ops name.
*/
-int rte_eal_has_hugepages(void);
+const char *
+rte_eal_mbuf_default_mempool_ops(void);
#ifdef __cplusplus
}