mlx5: Expose BlueFlame capability

Add flag to indicate BlueFlame support through mlx5dv_query_device.

Signed-off-by: Maor Gottlieb <[email protected]>
Signed-off-by: Yishai Hadas <[email protected]>

Author: maorgottlieb

providers/mlx5/man/mlx5dv_query_device.3

@@ -87,6 +87,7 @@ enum mlx5dv_context_flags {
  * If CQ was created with IBV_WC_EX_WITH_COMPLETION_TIMESTAMP_WALLCLOCK, CQEs timestamp will be in real time format.
  */
  MLX5DV_CONTEXT_FLAGS_REAL_TIME_TS = (1 << 7),
+ MLX5DV_CONTEXT_FLAGS_BLUEFLAME = (1 << 8), /* Indicates if BlueFlame is supported by the device */
 .in -8
 };
 

providers/mlx5/mlx5.c

@@ -894,6 +894,9 @@ static int _mlx5dv_query_device(struct ibv_context *ctx_in,
 		MLX5_VENDOR_CAP_FLAGS_PACKET_BASED_CREDIT_MODE)
 		attrs_out->flags |= MLX5DV_CONTEXT_FLAGS_PACKET_BASED_CREDIT_MODE;
 
+	if (mctx->bf_reg_size > 0)
+		attrs_out->flags |= MLX5DV_CONTEXT_FLAGS_BLUEFLAME;
+
 	if (attrs_out->comp_mask & MLX5DV_CONTEXT_MASK_SWP) {
 		attrs_out->sw_parsing_caps = mctx->sw_parsing_caps;
 		comp_mask_out |= MLX5DV_CONTEXT_MASK_SWP;

providers/mlx5/mlx5dv.h

@@ -261,6 +261,7 @@ enum mlx5dv_context_flags {
 	MLX5DV_CONTEXT_FLAGS_CQE_128B_PAD = (1 << 5), /* Support CQE 128B padding */
 	MLX5DV_CONTEXT_FLAGS_PACKET_BASED_CREDIT_MODE = (1 << 6),
 	MLX5DV_CONTEXT_FLAGS_REAL_TIME_TS = (1 << 7),
+	MLX5DV_CONTEXT_FLAGS_BLUEFLAME = (1 << 8), /* Support BlueFlame */
 };
 
 enum mlx5dv_cq_init_attr_mask {