From 6f26f8a0ec4f9f85dd294ae96d38de0cf1d71791 Mon Sep 17 00:00:00 2001 From: Jerin Jacob Date: Fri, 8 Nov 2019 22:26:03 +0530 Subject: [PATCH] eventdev: reserve space in main structs for extension The struct rte_eventdev and rte_eventdev_data are supposed to be used internally only, but there is a chance that increasing their size would break ABI for some applications. In order to allow smooth addition of features without breaking ABI compatibility, some space is reserved. Signed-off-by: Jerin Jacob --- lib/librte_eventdev/rte_eventdev.h | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/lib/librte_eventdev/rte_eventdev.h b/lib/librte_eventdev/rte_eventdev.h index ced6f29d98..226f352ad2 100644 --- a/lib/librte_eventdev/rte_eventdev.h +++ b/lib/librte_eventdev/rte_eventdev.h @@ -1282,6 +1282,9 @@ struct rte_eventdev_data { char name[RTE_EVENTDEV_NAME_MAX_LEN]; /**< Unique identifier name */ + + uint64_t reserved_64s[4]; /**< Reserved for future fields */ + void *reserved_ptrs[4]; /**< Reserved for future fields */ } __rte_cache_aligned; /** @internal The data structure associated with each event device. */ @@ -1314,6 +1317,9 @@ struct rte_eventdev { RTE_STD_C11 uint8_t attached : 1; /**< Flag indicating the device is attached */ + + uint64_t reserved_64s[4]; /**< Reserved for future fields */ + void *reserved_ptrs[4]; /**< Reserved for future fields */ } __rte_cache_aligned; extern struct rte_eventdev *rte_eventdevs; -- 2.20.1