Imported upstream release 16.04

* gbp import-orig ../dpdk-16.04.tar.xz

Change-Id: Iac2196db782ba322f6974d8a752acc34ce5024c3
Signed-off-by: C.J. Collier <cjcollier@linuxfoundation.org>

1 files changed, 259 insertions, 0 deletions

diff --git a/lib/librte_eal/common/include/rte_eal.h b/lib/librte_eal/common/include/rte_eal.h
new file mode 100644
index 00000000..a71d6f57
--- /dev/null
+++ b/lib/librte_eal/common/include/rte_eal.h
@@ -0,0 +1,259 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright(c) 2010-2016 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
+ *   are met:
+ *
+ *     * 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
+ *       distribution.
+ *     * 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
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _RTE_EAL_H_
+#define _RTE_EAL_H_
+
+/**
+ * @file
+ *
+ * EAL Configuration API
+ */
+
+#include <stdint.h>
+#include <sched.h>
+
+#include <rte_per_lcore.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#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,
+};
+
+/**
+ * The type of process in a linuxapp, multi-process setup
+ */
+enum rte_proc_type_t {
+	RTE_PROC_AUTO = -1,   /* allow auto-detection of primary/secondary */
+	RTE_PROC_PRIMARY = 0, /* set to zero, so primary is the default */
+	RTE_PROC_SECONDARY,
+
+	RTE_PROC_INVALID
+};
+
+/**
+ * The global RTE configuration structure.
+ */
+struct rte_config {
+	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;
+
+	/**
+	 * Pointer to memory configuration, which may be shared across multiple
+	 * DPDK instances
+	 */
+	struct rte_mem_config *mem_config;
+} __attribute__((__packed__));
+
+/**
+ * Get the global configuration structure.
+ *
+ * @return
+ *   A pointer to the global configuration structure.
+ */
+struct rte_config *rte_eal_get_configuration(void);
+
+/**
+ * Get a lcore's role.
+ *
+ * @param lcore_id
+ *   The identifier of the lcore.
+ * @return
+ *   The role of the lcore.
+ */
+enum rte_lcore_role_t rte_eal_lcore_role(unsigned lcore_id);
+
+
+/**
+ * Get the process type in a multi-process setup
+ *
+ * @return
+ *   The process type
+ */
+enum rte_proc_type_t rte_eal_process_type(void);
+
+/**
+ * Request iopl privilege for all RPL.
+ *
+ * This function should be called by pmds which need access to ioports.
+
+ * @return
+ *   - On success, returns 0.
+ *   - On failure, returns -1.
+ */
+int rte_eal_iopl_init(void);
+
+/**
+ * Initialize the Environment Abstraction Layer (EAL).
+ *
+ * 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 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
+ * function waits to ensure that the magic number is set before
+ * returning. See also the rte_eal_get_configuration() function. Note:
+ * This behavior may change in the future.
+ *
+ * @param argc
+ *   The argc argument that was given to the main() function.
+ * @param argv
+ *   The argv argument that was given to the main() 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.
+ */
+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.
+ *
+ * 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 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).
+ *
+ *   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)
+
+/**
+ * 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);
+
+/**
+ * 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);
+
+/**
+ * Get system unique thread id.
+ *
+ * @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);
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _RTE_EAL_H_ */