[dpdk-dev] [PATCH v2 1/6] ethdev: add an field for querying hash key size

[Helin Zhang <helin.zhang@intel.com>]

To support querying hash key size per port, an new field of
'hash_key_size' was added in 'struct rte_eth_dev_info' for storing
hash key size in bytes.

Signed-off-by: Helin Zhang <helin.zhang@intel.com>
---
 lib/librte_ether/rte_ethdev.h | 3 +++
 1 file changed, 3 insertions(+)

v2 changes:
* Disabled the code changes by default, to avoid breaking ABI compatibility.

diff --git a/lib/librte_ether/rte_ethdev.h b/lib/librte_ether/rte_ethdev.h
index 16dbe00..bdebc87 100644
--- a/lib/librte_ether/rte_ethdev.h
+++ b/lib/librte_ether/rte_ethdev.h
@@ -916,6 +916,9 @@ struct rte_eth_dev_info {
 	uint16_t max_vmdq_pools; /**< Maximum number of VMDq pools. */
 	uint32_t rx_offload_capa; /**< Device RX offload capabilities. */
 	uint32_t tx_offload_capa; /**< Device TX offload capabilities. */
+#ifdef RTE_QUERY_HASH_KEY_SIZE
+	uint8_t hash_key_size; /**< Hash key size in bytes */
+#endif
 	uint16_t reta_size;
 	/**< Device redirection table size, the total number of entries. */
 	/** Bit mask of RSS offloads, the bit offset also means flow type */
-- 
1.9.3