[dpdk-dev] [PATCH v2 4/6] i40e: 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/i40e/i40e_ethdev.c    | 4 ++++
 drivers/net/i40e/i40e_ethdev_vf.c | 4 ++++
 2 files changed, 8 insertions(+)

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

diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
index da6c0b5..63c76a6 100644
--- a/drivers/net/i40e/i40e_ethdev.c
+++ b/drivers/net/i40e/i40e_ethdev.c
@@ -1540,6 +1540,10 @@ i40e_dev_info_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
 		DEV_TX_OFFLOAD_SCTP_CKSUM |
 		DEV_TX_OFFLOAD_OUTER_IPV4_CKSUM |
 		DEV_TX_OFFLOAD_TCP_TSO;
+#ifdef RTE_QUERY_HASH_KEY_SIZE
+	dev_info->hash_key_size = (I40E_PFQF_HKEY_MAX_INDEX + 1) *
+						sizeof(uint32_t);
+#endif
 	dev_info->reta_size = pf->hash_lut_size;
 	dev_info->flow_type_rss_offloads = I40E_RSS_OFFLOAD_ALL;
 
diff --git a/drivers/net/i40e/i40e_ethdev_vf.c b/drivers/net/i40e/i40e_ethdev_vf.c
index 9f92a2f..486b394 100644
--- a/drivers/net/i40e/i40e_ethdev_vf.c
+++ b/drivers/net/i40e/i40e_ethdev_vf.c
@@ -1641,6 +1641,10 @@ i40evf_dev_info_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
 	dev_info->max_tx_queues = vf->vsi_res->num_queue_pairs;
 	dev_info->min_rx_bufsize = I40E_BUF_SIZE_MIN;
 	dev_info->max_rx_pktlen = I40E_FRAME_SIZE_MAX;
+#ifdef RTE_QUERY_HASH_KEY_SIZE
+	dev_info->hash_key_size = (I40E_VFQF_HKEY_MAX_INDEX + 1) *
+						sizeof(uint32_t);
+#endif
 	dev_info->reta_size = ETH_RSS_RETA_SIZE_64;
 	dev_info->flow_type_rss_offloads = I40E_RSS_OFFLOAD_ALL;
 
-- 
1.9.3