/* SPDX-License-Identifier: BSD-3-Clause
- * Copyright(c) 2010-2016 Intel Corporation
+ * Copyright(c) 2010-2018 Intel Corporation
*/
#ifndef _RTE_EAL_H_
#include <stdint.h>
#include <sched.h>
+#include <time.h>
#include <rte_config.h>
+#include <rte_compat.h>
#include <rte_per_lcore.h>
#include <rte_bus.h>
};
/**
- * The type of process in a linuxapp, multi-process setup
+ * The type of process in a linux, multi-process setup
*/
enum rte_proc_type_t {
RTE_PROC_AUTO = -1, /* allow auto-detection of primary/secondary */
struct rte_config {
uint32_t master_lcore; /**< Id of the master lcore */
uint32_t lcore_count; /**< Number of available logical cores. */
+ uint32_t numa_node_count; /**< Number of detected NUMA nodes. */
+ uint32_t numa_nodes[RTE_MAX_NUMA_NODES]; /**< List of detected NUMA nodes. */
uint32_t service_lcore_count;/**< Number of available service cores. */
enum rte_lcore_role_t lcore_role[RTE_MAX_LCORE]; /**< State of cores. */
int rte_eal_init(int argc, char **argv);
/**
- * @warning
- * @b EXPERIMENTAL: this API may change without prior notice
- *
* Clean up the Environment Abstraction Layer (EAL)
*
* This function must be called to release any internal resources that EAL has
*/
int rte_eal_primary_proc_alive(const char *config_file_path);
+#define RTE_MP_MAX_FD_NUM 8 /* The max amount of fds */
+#define RTE_MP_MAX_NAME_LEN 64 /* The max length of action name */
+#define RTE_MP_MAX_PARAM_LEN 256 /* The max length of param */
+struct rte_mp_msg {
+ char name[RTE_MP_MAX_NAME_LEN];
+ int len_param;
+ int num_fds;
+ uint8_t param[RTE_MP_MAX_PARAM_LEN];
+ int fds[RTE_MP_MAX_FD_NUM];
+};
+
+struct rte_mp_reply {
+ int nb_sent;
+ int nb_received;
+ struct rte_mp_msg *msgs; /* caller to free */
+};
+
+/**
+ * Action function typedef used by other components.
+ *
+ * As we create socket channel for primary/secondary communication, use
+ * this function typedef to register action for coming messages.
+ */
+typedef int (*rte_mp_t)(const struct rte_mp_msg *msg, const void *peer);
+
+/**
+ * Asynchronous reply function typedef used by other components.
+ *
+ * As we create socket channel for primary/secondary communication, use
+ * this function typedef to register action for coming responses to asynchronous
+ * requests.
+ */
+typedef int (*rte_mp_async_reply_t)(const struct rte_mp_msg *request,
+ const struct rte_mp_reply *reply);
+
+/**
+ * @warning
+ * @b EXPERIMENTAL: this API may change without prior notice
+ *
+ * Register an action function for primary/secondary communication.
+ *
+ * Call this function to register an action, if the calling component wants
+ * to response the messages from the corresponding component in its primary
+ * process or secondary processes.
+ *
+ * @param name
+ * The name argument plays as the nonredundant key to find the action.
+ *
+ * @param action
+ * The action argument is the function pointer to the action function.
+ *
+ * @return
+ * - 0 on success.
+ * - (<0) on failure.
+ */
+int __rte_experimental
+rte_mp_action_register(const char *name, rte_mp_t action);
+
+/**
+ * @warning
+ * @b EXPERIMENTAL: this API may change without prior notice
+ *
+ * Unregister an action function for primary/secondary communication.
+ *
+ * Call this function to unregister an action if the calling component does
+ * not want to response the messages from the corresponding component in its
+ * primary process or secondary processes.
+ *
+ * @param name
+ * The name argument plays as the nonredundant key to find the action.
+ *
+ */
+void __rte_experimental
+rte_mp_action_unregister(const char *name);
+
+/**
+ * @warning
+ * @b EXPERIMENTAL: this API may change without prior notice
+ *
+ * Send a message to the peer process.
+ *
+ * This function will send a message which will be responded by the action
+ * identified by name in the peer process.
+ *
+ * @param msg
+ * The msg argument contains the customized message.
+ *
+ * @return
+ * - On success, return 0.
+ * - On failure, return -1, and the reason will be stored in rte_errno.
+ */
+int __rte_experimental
+rte_mp_sendmsg(struct rte_mp_msg *msg);
+
+/**
+ * @warning
+ * @b EXPERIMENTAL: this API may change without prior notice
+ *
+ * Send a request to the peer process and expect a reply.
+ *
+ * This function sends a request message to the peer process, and will
+ * block until receiving reply message from the peer process.
+ *
+ * @note The caller is responsible to free reply->replies.
+ *
+ * @param req
+ * The req argument contains the customized request message.
+ *
+ * @param reply
+ * The reply argument will be for storing all the replied messages;
+ * the caller is responsible for free reply->msgs.
+ *
+ * @param ts
+ * The ts argument specifies how long we can wait for the peer(s) to reply.
+ *
+ * @return
+ * - On success, return 0.
+ * - On failure, return -1, and the reason will be stored in rte_errno.
+ */
+int __rte_experimental
+rte_mp_request_sync(struct rte_mp_msg *req, struct rte_mp_reply *reply,
+ const struct timespec *ts);
+
+/**
+ * @warning
+ * @b EXPERIMENTAL: this API may change without prior notice
+ *
+ * Send a request to the peer process and expect a reply in a separate callback.
+ *
+ * This function sends a request message to the peer process, and will not
+ * block. Instead, reply will be received in a separate callback.
+ *
+ * @param req
+ * The req argument contains the customized request message.
+ *
+ * @param ts
+ * The ts argument specifies how long we can wait for the peer(s) to reply.
+ *
+ * @param clb
+ * The callback to trigger when all responses for this request have arrived.
+ *
+ * @return
+ * - On success, return 0.
+ * - On failure, return -1, and the reason will be stored in rte_errno.
+ */
+int __rte_experimental
+rte_mp_request_async(struct rte_mp_msg *req, const struct timespec *ts,
+ rte_mp_async_reply_t clb);
+
+/**
+ * @warning
+ * @b EXPERIMENTAL: this API may change without prior notice
+ *
+ * Send a reply to the peer process.
+ *
+ * This function will send a reply message in response to a request message
+ * received previously.
+ *
+ * @param msg
+ * The msg argument contains the customized message.
+ *
+ * @param peer
+ * The peer argument is the pointer to the peer socket path.
+ *
+ * @return
+ * - On success, return 0.
+ * - On failure, return -1, and the reason will be stored in rte_errno.
+ */
+int __rte_experimental
+rte_mp_reply(struct rte_mp_msg *msg, const char *peer);
+
+/**
+ * Register all mp action callbacks for hotplug.
+ *
+ * @return
+ * 0 on success, negative on error.
+ */
+int __rte_experimental
+rte_mp_dev_hotplug_init(void);
+
/**
* Usage function typedef used by the application usage function.
*
#define RTE_EAL_TAILQ_RWLOCK (&rte_eal_get_configuration()->mem_config->qlock)
/**
- * macro to get the multiple lock of mempool shared by mutiple-instance
+ * macro to get the multiple lock of mempool shared by multiple-instance
*/
#define RTE_EAL_MEMPOOL_RWLOCK (&rte_eal_get_configuration()->mem_config->mplock)
enum rte_iova_mode rte_eal_iova_mode(void);
/**
- * Get default pool ops name for mbuf
+ * Get user provided pool ops name for mbuf
+ *
+ * @return
+ * returns user provided pool ops name.
+ */
+const char *
+rte_eal_mbuf_user_pool_ops(void);
+
+/**
+ * Get the runtime directory of DPDK
*
* @return
- * returns default pool ops name.
+ * The runtime directory path of DPDK
*/
const char *
-rte_eal_mbuf_default_mempool_ops(void);
+rte_eal_get_runtime_dir(void);
#ifdef __cplusplus
}