*
* As we create socket channel for primary/secondary communication, use
* this function typedef to register action for coming messages.
+ *
+ * @note When handling IPC request callbacks, the reply must be sent even in
+ * cases of error handling. Simply returning success or failure will *not*
+ * send a response to the requestor.
+ * Implementation of error signalling mechanism is up to the application.
+ *
+ * @note No memory allocations should take place inside the callback.
*/
typedef int (*rte_mp_t)(const struct rte_mp_msg *msg, const void *peer);
* As we create socket channel for primary/secondary communication, use
* this function typedef to register action for coming responses to asynchronous
* requests.
+ *
+ * @note When handling IPC request callbacks, the reply must be sent even in
+ * cases of error handling. Simply returning success or failure will *not*
+ * send a response to the requestor.
+ * Implementation of error signalling mechanism is up to the application.
+ *
+ * @note No memory allocations should take place inside the callback.
*/
typedef int (*rte_mp_async_reply_t)(const struct rte_mp_msg *request,
const struct rte_mp_reply *reply);
* to response the messages from the corresponding component in its primary
* process or secondary processes.
*
+ * @note IPC may be unsupported in certain circumstances, so caller should check
+ * for ENOTSUP error.
+ *
* @param name
* The name argument plays as the nonredundant key to find the action.
*
* - 0 on success.
* - (<0) on failure.
*/
-int __rte_experimental
+__rte_experimental
+int
rte_mp_action_register(const char *name, rte_mp_t action);
/**
* not want to response the messages from the corresponding component in its
* primary process or secondary processes.
*
+ * @note IPC may be unsupported in certain circumstances, so caller should check
+ * for ENOTSUP error.
+ *
* @param name
* The name argument plays as the nonredundant key to find the action.
*
*/
-void __rte_experimental
+__rte_experimental
+void
rte_mp_action_unregister(const char *name);
/**
* - On success, return 0.
* - On failure, return -1, and the reason will be stored in rte_errno.
*/
-int __rte_experimental
+__rte_experimental
+int
rte_mp_sendmsg(struct rte_mp_msg *msg);
/**
*
* @note The caller is responsible to free reply->replies.
*
+ * @note This API must not be used inside memory-related or IPC callbacks, and
+ * no memory allocations should take place inside such callback.
+ *
+ * @note IPC may be unsupported in certain circumstances, so caller should check
+ * for ENOTSUP error.
+ *
* @param req
* The req argument contains the customized request message.
*
* - On success, return 0.
* - On failure, return -1, and the reason will be stored in rte_errno.
*/
-int __rte_experimental
+__rte_experimental
+int
rte_mp_request_sync(struct rte_mp_msg *req, struct rte_mp_reply *reply,
const struct timespec *ts);
* This function sends a request message to the peer process, and will not
* block. Instead, reply will be received in a separate callback.
*
+ * @note IPC may be unsupported in certain circumstances, so caller should check
+ * for ENOTSUP error.
+ *
* @param req
* The req argument contains the customized request message.
*
* - On success, return 0.
* - On failure, return -1, and the reason will be stored in rte_errno.
*/
-int __rte_experimental
+__rte_experimental
+int
rte_mp_request_async(struct rte_mp_msg *req, const struct timespec *ts,
rte_mp_async_reply_t clb);
* This function will send a reply message in response to a request message
* received previously.
*
+ * @note When handling IPC request callbacks, the reply must be sent even in
+ * cases of error handling. Simply returning success or failure will *not*
+ * send a response to the requestor.
+ * Implementation of error signalling mechanism is up to the application.
+ *
* @param msg
* The msg argument contains the customized message.
*
* - On success, return 0.
* - On failure, return -1, and the reason will be stored in rte_errno.
*/
-int __rte_experimental
+__rte_experimental
+int
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.
*
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 multiple-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.
+ * The no-huge mode is not compatible with all drivers or features.
*
* @return
* Nonzero if hugepages are enabled.
git.droids-corp.org / dpdk.git / blobdiff