Danit Goldberg says: Packet based credit mode Packet based credit mode is an alternative end-to-end credit mode for QPs set during their creation. Credits are transported from the responder to the requester to optimize the use of its receive resources. In packet-based credit mode, credits are issued on a per packet basis. The advantage of this feature comes while sending large RDMA messages through switches that are short in memory. The first commit exposes QP creation flag and the HCA capability. The second commit adds support for a new DV QP creation flag. The last commit report packet based credit mode capability via the MLX5DV device capabilities. * branch 'mlx5-packet-credit-fc': IB/mlx5: Report packet based credit mode device capability IB/mlx5: Add packet based credit mode support net/mlx5: Expose packet based credit mode
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| @@ -48,6 +48,7 @@ enum { · 47 unmodified lines | |||
| 48 | MLX5_QP_FLAG_TIR_ALLOW_SELF_LB_UC = 1 << 6, | 48 | MLX5_QP_FLAG_TIR_ALLOW_SELF_LB_UC = 1 << 6, |
| 49 | MLX5_QP_FLAG_TIR_ALLOW_SELF_LB_MC = 1 << 7, | 49 | MLX5_QP_FLAG_TIR_ALLOW_SELF_LB_MC = 1 << 7, |
| 50 | MLX5_QP_FLAG_ALLOW_SCATTER_CQE = 1 << 8, | 50 | MLX5_QP_FLAG_ALLOW_SCATTER_CQE = 1 << 8, |
| 51 | MLX5_QP_FLAG_PACKET_BASED_CREDIT_MODE = 1 << 9, | ||
| 51 | }; | 52 | }; |
| 52 | 53 | ||
| 53 | enum { | 54 | enum { |
| @@ -236,6 +237,7 @@ enum mlx5_ib_query_dev_resp_flags { · 182 unmodified lines | |||
| 236 | /* Support 128B CQE compression */ | 237 | /* Support 128B CQE compression */ |
| 237 | MLX5_IB_QUERY_DEV_RESP_FLAGS_CQE_128B_COMP = 1 << 0, | 238 | MLX5_IB_QUERY_DEV_RESP_FLAGS_CQE_128B_COMP = 1 << 0, |
| 238 | MLX5_IB_QUERY_DEV_RESP_FLAGS_CQE_128B_PAD = 1 << 1, | 239 | MLX5_IB_QUERY_DEV_RESP_FLAGS_CQE_128B_PAD = 1 << 1, |
| 240 | MLX5_IB_QUERY_DEV_RESP_PACKET_BASED_CREDIT_MODE = 1 << 2, | ||
| 239 | }; | 241 | }; |
| 240 | 242 | ||
| 241 | enum mlx5_ib_tunnel_offloads { | 243 | enum mlx5_ib_tunnel_offloads { |