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Commit 572f46bf authored by Yonatan Cohen's avatar Yonatan Cohen Committed by Jason Gunthorpe
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IB/mlx5: Refactor CQE compression response 



Refactor CQE compression response to be fully set only
when it`s really supported. There is no change from user
perspective because anyway resp.cqe_comp_caps.max_num was
set to zero.

Reviewed-by: default avatarYishai Hadas <yishaih@mellanox.com>
Signed-off-by: default avatarYonatan Cohen <yonatanc@mellanox.com&gt;W>
Signed-off-by: default avatarLeon Romanovsky <leonro@mellanox.com>
Signed-off-by: default avatarJason Gunthorpe <jgg@mellanox.com>
parent ab741b2e

drivers/infiniband/hw/mlx5/main.c

+10 −6
Original line number Diff line number Diff line
@@ -983,13 +983,17 @@ static int mlx5_ib_query_device(struct ib_device *ibdev, 
	}



	if (field_avail(typeof(resp), cqe_comp_caps, uhw->outlen)) {

		resp.response_length += sizeof(resp.cqe_comp_caps);



		if (MLX5_CAP_GEN(dev->mdev, cqe_compression)) {

			resp.cqe_comp_caps.max_num =

			MLX5_CAP_GEN(dev->mdev, cqe_compression) ?

			MLX5_CAP_GEN(dev->mdev, cqe_compression_max_num) : 0;

				MLX5_CAP_GEN(dev->mdev,

					     cqe_compression_max_num);



			resp.cqe_comp_caps.supported_format =

				MLX5_IB_CQE_RES_FORMAT_HASH |

				MLX5_IB_CQE_RES_FORMAT_CSUM;

		resp.response_length += sizeof(resp.cqe_comp_caps);

		}

	}



	if (field_avail(typeof(resp), packet_pacing_caps, uhw->outlen) &&