/*-
* BSD LICENSE
- *
- * Copyright(c) 2010-2012 Intel Corporation. All rights reserved.
+ *
+ * Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
* All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
* are met:
- *
- * * Redistributions of source code must retain the above copyright
+ *
+ * * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
* distribution.
- * * Neither the name of Intel Corporation nor the names of its
- * contributors may be used to endorse or promote products derived
+ * * Neither the name of Intel Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
*/
#ifndef _RTE_EAL_H_
* EAL Configuration API
*/
-#include <rte_tailq.h>
-#include <rte_memory.h>
-#include <rte_memzone.h>
+#include <stdint.h>
#ifdef __cplusplus
extern "C" {
#endif
-#define RTE_VERSION 1 /**< The version of the RTE configuration structure. */
#define RTE_MAGIC 19820526 /**< Magic number written by the main partition when ready. */
/**
RTE_PROC_INVALID
};
-/**
- * the structure for the memory configuration for the RTE.
- * Used by the rte_config structure. It is separated out, as for multi-process
- * support, the memory details should be shared across instances
- */
-struct rte_mem_config {
- /* memory topology */
- uint32_t nchannel; /**< Number of channels (0 if unknown). */
- uint32_t nrank; /**< Number of ranks (0 if unknown). */
-
- /* memory segments and zones */
- struct rte_memseg memseg[RTE_MAX_MEMSEG]; /**< Physmem descriptors. */
- struct rte_memzone memzone[RTE_MAX_MEMZONE]; /**< Memzone descriptors. */
-
- struct rte_tailq_head tailq_head[RTE_MAX_TAILQ]; /**< Tailqs for objects */
-} __attribute__((__packed__));
-
/**
* The global RTE configuration structure.
*/
struct rte_config {
- uint32_t version; /**< Configuration [structure] version. */
- uint32_t magic; /**< Magic number - Sanity check. */
-
-
uint32_t master_lcore; /**< Id of the master lcore */
uint32_t lcore_count; /**< Number of available logical 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;
+ /** A set of general status flags */
+ unsigned flags;
+
/**
* Pointer to memory configuration, which may be shared across multiple
* Intel DPDK instances
struct rte_mem_config *mem_config;
} __attribute__((__packed__));
+/* Flag definitions for rte_config flags */
+#define EAL_FLG_HIGH_IOPL 1 /**< indicates high IO privilege in a linux env */
+
/**
* Get the global configuration structure.
*
* - On failure, a negative error value.
*/
int rte_eal_init(int argc, char **argv);
+/**
+ * Usage function typedef used by the application usage function.
+ *
+ * Use this function typedef to define and call rte_set_applcation_usage_hook()
+ * routine.
+ */
+typedef void (*rte_usage_hook_t)(const char * prgname);
+
+/**
+ * Add application usage routine callout from the eal_usage() routine.
+ *
+ * This function allows the application to include its usage message
+ * in the EAL system usage message. The routine rte_set_application_usage_hook()
+ * needs to be called before the rte_eal_init() routine in the application.
+ *
+ * This routine is optional for the application and will behave as if the set
+ * routine was never called as the default behavior.
+ *
+ * @param 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).
+ *
+ * Calling this routine with a NULL value will reset the usage hook routine and
+ * return the current value, which could be NULL.
+ * @return
+ * - Returns the current value of the rte_application_usage pointer to allow
+ * 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 );
+
+/**
+ * macro to get the lock of tailq in mem_config
+ */
+#define RTE_EAL_TAILQ_RWLOCK (&rte_eal_get_configuration()->mem_config->qlock)
+
+/**
+ * macro to get the multiple lock of mempool shared by mutiple-instance
+ */
+#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
+ *
+ */
+#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)
+
+/**
+ * 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
+ *
+ * @param type
+ * type of list(tailq head)
+ *
+ * @param elm
+ * The element will be remove from the list
+ *
+ */
+#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) \
+
+
+/**
+ * macro to check TAILQ exist
+ *
+ * @param idx
+ * a kind of tailq define in enum rte_tailq_t
+ *
+ */
+#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)
+
+/**
+ * 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.
+ */
+int rte_eal_has_hugepages(void);
#ifdef __cplusplus
}
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