Add a new helper function rte_lcore_is_eal_managed() to determine if a logical core is managed by EAL.
This interface returns true if the lcore role is either ROLE_RTE (standard worker/main cores) or ROLE_SERVICE (service cores). Signed-off-by: Huisong Li <[email protected]> --- doc/guides/rel_notes/release_26_07.rst | 6 ++++++ lib/eal/common/eal_common_lcore.c | 11 +++++++++++ lib/eal/include/rte_lcore.h | 12 ++++++++++++ 3 files changed, 29 insertions(+) diff --git a/doc/guides/rel_notes/release_26_07.rst b/doc/guides/rel_notes/release_26_07.rst index f012d47a4b..be5ccecd46 100644 --- a/doc/guides/rel_notes/release_26_07.rst +++ b/doc/guides/rel_notes/release_26_07.rst @@ -63,6 +63,12 @@ New Features ``rte_eal_init`` and the application is responsible for probing each device, * ``--auto-probing`` enables the initial bus probing, which is the current default behavior. +* **Added lcore EAL-managed status check.** + + Added ``rte_lcore_is_eal_managed()`` helper function in EAL lcore library + to check whether a logical core is managed by EAL + (i.e., its role is ``ROLE_RTE`` or ``ROLE_SERVICE``). + Removed Items ------------- diff --git a/lib/eal/common/eal_common_lcore.c b/lib/eal/common/eal_common_lcore.c index 39411f9370..ab7b5e8393 100644 --- a/lib/eal/common/eal_common_lcore.c +++ b/lib/eal/common/eal_common_lcore.c @@ -102,6 +102,17 @@ int rte_lcore_is_enabled(unsigned int lcore_id) return cfg->lcore_role[lcore_id] == ROLE_RTE; } +RTE_EXPORT_EXPERIMENTAL_SYMBOL(rte_lcore_is_eal_managed, 26.07) +int rte_lcore_is_eal_managed(unsigned int lcore_id) +{ + struct rte_config *cfg = rte_eal_get_configuration(); + + if (lcore_id >= RTE_MAX_LCORE) + return 0; + return cfg->lcore_role[lcore_id] == ROLE_RTE || + cfg->lcore_role[lcore_id] == ROLE_SERVICE; +} + RTE_EXPORT_SYMBOL(rte_get_next_lcore) unsigned int rte_get_next_lcore(unsigned int i, int skip_main, int wrap) { diff --git a/lib/eal/include/rte_lcore.h b/lib/eal/include/rte_lcore.h index 10f965b4f0..9e6bb5230a 100644 --- a/lib/eal/include/rte_lcore.h +++ b/lib/eal/include/rte_lcore.h @@ -195,6 +195,18 @@ rte_cpuset_t rte_lcore_cpuset(unsigned int lcore_id); */ int rte_lcore_is_enabled(unsigned int lcore_id); +/** + * Test if an lcore is ROLE_RTE or ROLE_SERVICE. + * + * @param lcore_id + * The identifier of the lcore, which MUST be between 0 and + * RTE_MAX_LCORE-1. + * @return + * True if the given lcore is ROLE_RTE or ROLE_SERVICE; false otherwise. + */ +__rte_experimental +int rte_lcore_is_eal_managed(unsigned int lcore_id); + /** * Get the next enabled lcore ID. * -- 2.33.0
