When symmetric sessions are created, it may fail due to non-critical errors. When PMD doesn't support the specific combination that application requested, it can return -ENOTSUP which can be handled so in application. The API is already setting rte_errno according to the reason of the failure. Clarifying this in the spec to list down possible error codes.
Fixes: bdce2564dbf7 ("cryptodev: rework session framework") Signed-off-by: Anoob Joseph <ano...@marvell.com> --- lib/cryptodev/rte_cryptodev.h | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/lib/cryptodev/rte_cryptodev.h b/lib/cryptodev/rte_cryptodev.h index 3a9ad13660..4e3a7db0fe 100644 --- a/lib/cryptodev/rte_cryptodev.h +++ b/lib/cryptodev/rte_cryptodev.h @@ -1048,11 +1048,14 @@ rte_cryptodev_asym_session_pool_create(const char *name, uint32_t nb_elts, * @param dev_id ID of device that we want the session to be used on * @param xforms Symmetric crypto transform operations to apply on flow * processed with this session - * @param mp Mempool where the private data is allocated. + * @param mp Mempool to allocate symmetric session objects from * * @return * - On success return pointer to sym-session. - * - On failure returns NULL. + * - On failure returns NULL and rte_errno is set to the error code. + * EINVAL on invalid arguments. + * ENOMEM on memory error for session allocation. + * ENOTSUP if device doesn't support session configuration. */ void * rte_cryptodev_sym_session_create(uint8_t dev_id, -- 2.25.1