X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=lib%2Flibrte_eal%2Fcommon%2Finclude%2Frte_eal.h;h=0e99c3183114c254de7c35711a322a0ca9c486a8;hb=6a34f91690d0;hp=fc2c68fb2e33971f3ae9a64a34bb083ab4adedfe;hpb=c738c6a644e5a07fa98ede668775c08ec5321273;p=dpdk.git diff --git a/lib/librte_eal/common/include/rte_eal.h b/lib/librte_eal/common/include/rte_eal.h index fc2c68fb2e..0e99c31831 100644 --- a/lib/librte_eal/common/include/rte_eal.h +++ b/lib/librte_eal/common/include/rte_eal.h @@ -1,13 +1,13 @@ /*- * BSD LICENSE - * + * * 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 * 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 @@ -17,7 +17,7 @@ * * 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 @@ -41,6 +41,9 @@ */ #include +#include + +#include #ifdef __cplusplus extern "C" { @@ -48,6 +51,9 @@ 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). */ @@ -78,19 +84,13 @@ struct rte_config { /** 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 + * 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. * @@ -118,15 +118,25 @@ enum rte_lcore_role_t rte_eal_lcore_role(unsigned lcore_id); */ 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 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 @@ -164,7 +174,7 @@ typedef void (*rte_usage_hook_t)(const char * prgname); * 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). @@ -176,10 +186,10 @@ typedef void (*rte_usage_hook_t)(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 + * macro to get the lock of tailq in mem_config */ #define RTE_EAL_TAILQ_RWLOCK (&rte_eal_get_configuration()->mem_config->qlock) @@ -188,64 +198,6 @@ rte_set_application_usage_hook( rte_usage_hook_t usage_func ); */ #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. @@ -258,6 +210,30 @@ rte_set_application_usage_hook( rte_usage_hook_t usage_func ); */ 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