diff --git a/include/linux/mlx5/device.h b/include/linux/mlx5/device.h
index 95a4fa0fd40a..b5f58fd37a0f 100644
--- a/include/linux/mlx5/device.h
+++ b/include/linux/mlx5/device.h
@@ -822,7 +822,10 @@ struct mlx5_cqe64 {
 	__be32		timestamp_l;
 	__be32		sop_drop_qpn;
 	__be16		wqe_counter;
-	u8		signature;
+	union {
+		u8	signature;
+		u8	validity_iteration_count;
+	};
 	u8		op_own;
 };
 
@@ -854,6 +857,11 @@ enum {
 	MLX5_CQE_FORMAT_CSUM_STRIDX = 0x3,
 };
 
+enum {
+	MLX5_CQE_COMPRESS_LAYOUT_BASIC = 0,
+	MLX5_CQE_COMPRESS_LAYOUT_ENHANCED = 1,
+};
+
 #define MLX5_MINI_CQE_ARRAY_SIZE 8
 
 static inline u8 mlx5_get_cqe_format(struct mlx5_cqe64 *cqe)
@@ -866,6 +874,12 @@ static inline u8 get_cqe_opcode(struct mlx5_cqe64 *cqe)
 	return cqe->op_own >> 4;
 }
 
+static inline u8 get_cqe_enhanced_num_mini_cqes(struct mlx5_cqe64 *cqe)
+{
+	/* num_of_mini_cqes is zero based */
+	return get_cqe_opcode(cqe) + 1;
+}
+
 static inline u8 get_cqe_lro_tcppsh(struct mlx5_cqe64 *cqe)
 {
 	return (cqe->lro.tcppsh_abort_dupack >> 6) & 1;
diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h
index f678ad88a7d5..8e87eb47f9dc 100644
--- a/include/linux/mlx5/mlx5_ifc.h
+++ b/include/linux/mlx5/mlx5_ifc.h
@@ -1739,7 +1739,9 @@ struct mlx5_ifc_cmd_hca_cap_bits {
 	u8	   log_max_dci_errored_streams[0x5];
 	u8	   reserved_at_598[0x8];
 
-	u8         reserved_at_5a0[0x13];
+	u8         reserved_at_5a0[0x10];
+	u8         enhanced_cqe_compression[0x1];
+	u8         reserved_at_5b1[0x2];
 	u8         log_max_dek[0x5];
 	u8         reserved_at_5b8[0x4];
 	u8         mini_cqe_resp_stride_index[0x1];
@@ -4139,7 +4141,8 @@ struct mlx5_ifc_cqc_bits {
 	u8         cqe_comp_en[0x1];
 	u8         mini_cqe_res_format[0x2];
 	u8         st[0x4];
-	u8         reserved_at_18[0x8];
+	u8         reserved_at_18[0x6];
+	u8         cqe_compression_layout[0x2];
 
 	u8         reserved_at_20[0x20];