i40e/i40evf: initialize context descriptor

Driver needs to initialize all members of context descriptor. Stale
data is possible otherwise.

Change-ID: Idc6b53af45583509da42d5ec0824cbaf78aee64f
Signed-off-by: NJesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

drivers/net/ethernet/intel/i40e/i40e_txrx.c

@@ -1991,6 +1991,7 @@ static void i40e_create_tx_ctx(struct i40e_ring *tx_ring,
 	/* cpu_to_le32 and assign to struct fields */
 	context_desc->tunneling_params = cpu_to_le32(cd_tunneling);
 	context_desc->l2tag2 = cpu_to_le16(cd_l2tag2);
+	context_desc->rsvd = cpu_to_le16(0);
 	context_desc->type_cmd_tso_mss = cpu_to_le64(cd_type_cmd_tso_mss);
 }
 

drivers/net/ethernet/intel/i40evf/i40e_txrx.c

@@ -1336,6 +1336,7 @@ static void i40e_create_tx_ctx(struct i40e_ring *tx_ring,
 	/* cpu_to_le32 and assign to struct fields */
 	context_desc->tunneling_params = cpu_to_le32(cd_tunneling);
 	context_desc->l2tag2 = cpu_to_le16(cd_l2tag2);
+	context_desc->rsvd = cpu_to_le16(0);
 	context_desc->type_cmd_tso_mss = cpu_to_le64(cd_type_cmd_tso_mss);
 }