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IB/mlx5: Refactor CQE compression response

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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: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Yonatan Cohen <yonatanc@mellanox.com>W
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Yonatan Cohen 2018-05-27 13:42:33 +03:00 committed by Jason Gunthorpe
parent ab741b2eed
commit 572f46bf94
1 changed files with 10 additions and 6 deletions
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16
drivers/infiniband/hw/mlx5/main.c
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@ -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.cqe_comp_caps.max_num =
MLX5_CAP_GEN(dev->mdev, cqe_compression) ?
MLX5_CAP_GEN(dev->mdev, cqe_compression_max_num) : 0;
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 (MLX5_CAP_GEN(dev->mdev, cqe_compression)) {
resp.cqe_comp_caps.max_num =
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;
}
}
if (field_avail(typeof(resp), packet_pacing_caps, uhw->outlen) &&