[dpdk-dev] [PATCH v3 2/6] e1000: fill the hash key size

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

The correct hash key size in bytes should be filled into the
'struct rte_eth_dev_info', to support querying it.

Signed-off-by: Helin Zhang <helin.zhang@intel.com>
---
 drivers/net/e1000/igb_ethdev.c | 3 +++
 1 file changed, 3 insertions(+)

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

v3 changes:
* As newly added element was put to a padding space, it will not break ABI
  compatibility, and no need to disable the code changes by default.

diff --git a/drivers/net/e1000/igb_ethdev.c b/drivers/net/e1000/igb_ethdev.c
index e4b370d..7d388f3 100644
--- a/drivers/net/e1000/igb_ethdev.c
+++ b/drivers/net/e1000/igb_ethdev.c
@@ -68,6 +68,8 @@
 #define IGB_DEFAULT_TX_HTHRESH      0
 #define IGB_DEFAULT_TX_WTHRESH      0
 
+#define IGB_HKEY_MAX_INDEX 10
+
 /* Bit shift and mask */
 #define IGB_4_BIT_WIDTH  (CHAR_BIT / 2)
 #define IGB_4_BIT_MASK   RTE_LEN2MASK(IGB_4_BIT_WIDTH, uint8_t)
@@ -1377,6 +1379,7 @@ eth_igb_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
 		/* Should not happen */
 		break;
 	}
+	dev_info->hash_key_size = IGB_HKEY_MAX_INDEX * sizeof(uint32_t);
 	dev_info->reta_size = ETH_RSS_RETA_SIZE_128;
 	dev_info->flow_type_rss_offloads = IGB_RSS_OFFLOAD_ALL;
 
-- 
1.9.3