The struct rte_eth_dev and rte_eth_dev_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: Thomas Monjalon <tho...@monjalon.net>
---
lib/librte_ethdev/rte_ethdev_core.h | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/lib/librte_ethdev/rte_ethdev_core.h
b/lib/librte_ethdev/rte_ethdev_core.h
index 392aea8e6b..ea8dd1d9ba 100644
--- a/lib/librte_ethdev/rte_ethdev_core.h
+++ b/lib/librte_ethdev/rte_ethdev_core.h
@@ -698,6 +698,9 @@ struct rte_eth_dev {
struct rte_eth_rxtx_callback *pre_tx_burst_cbs[RTE_MAX_QUEUES_PER_PORT];
enum rte_eth_dev_state state; /**< Flag indicating the port state */
void *security_ctx; /**< Context for security ops */
+
+ uint64_t reserved_64s[4]; /**< Reserved for future fields */
+ void *reserved_ptrs[4]; /**< Reserved for future fields */
} __rte_cache_aligned;
struct rte_eth_dev_sriov;
@@ -764,6 +767,9 @@ struct rte_eth_dev_data {
/**< Switch-specific identifier.
* Valid if RTE_ETH_DEV_REPRESENTOR in dev_flags.
*/
+
+ uint64_t reserved_64s[4]; /**< Reserved for future fields */
+ void *reserved_ptrs[4]; /**< Reserved for future fields */
} __rte_cache_aligned;
/**
--
2.23.0
