diff options
Diffstat (limited to 'drivers/infiniband/hw/mlx5/cq.c')
| -rw-r--r-- | drivers/infiniband/hw/mlx5/cq.c | 42 |
1 files changed, 32 insertions, 10 deletions
diff --git a/drivers/infiniband/hw/mlx5/cq.c b/drivers/infiniband/hw/mlx5/cq.c index 6d52ea03574e..68775e12d721 100644 --- a/drivers/infiniband/hw/mlx5/cq.c +++ b/drivers/infiniband/hw/mlx5/cq.c @@ -742,6 +742,28 @@ static int alloc_cq_frag_buf(struct mlx5_ib_dev *dev, return 0; } +enum { + MLX5_CQE_RES_FORMAT_HASH = 0, + MLX5_CQE_RES_FORMAT_CSUM = 1, + MLX5_CQE_RES_FORMAT_CSUM_STRIDX = 3, +}; + +static int mini_cqe_res_format_to_hw(struct mlx5_ib_dev *dev, u8 format) +{ + switch (format) { + case MLX5_IB_CQE_RES_FORMAT_HASH: + return MLX5_CQE_RES_FORMAT_HASH; + case MLX5_IB_CQE_RES_FORMAT_CSUM: + return MLX5_CQE_RES_FORMAT_CSUM; + case MLX5_IB_CQE_RES_FORMAT_CSUM_STRIDX: + if (MLX5_CAP_GEN(dev->mdev, mini_cqe_resp_stride_index)) + return MLX5_CQE_RES_FORMAT_CSUM_STRIDX; + return -EOPNOTSUPP; + default: + return -EINVAL; + } +} + static int create_cq_user(struct mlx5_ib_dev *dev, struct ib_udata *udata, struct ib_ucontext *context, struct mlx5_ib_cq *cq, int entries, u32 **cqb, @@ -807,6 +829,8 @@ static int create_cq_user(struct mlx5_ib_dev *dev, struct ib_udata *udata, *index = to_mucontext(context)->bfregi.sys_pages[0]; if (ucmd.cqe_comp_en == 1) { + int mini_cqe_format; + if (!((*cqe_size == 128 && MLX5_CAP_GEN(dev->mdev, cqe_compression_128)) || (*cqe_size == 64 && @@ -817,20 +841,18 @@ static int create_cq_user(struct mlx5_ib_dev *dev, struct ib_udata *udata, goto err_cqb; } - if (unlikely(!ucmd.cqe_comp_res_format || - !(ucmd.cqe_comp_res_format < - MLX5_IB_CQE_RES_RESERVED) || - (ucmd.cqe_comp_res_format & - (ucmd.cqe_comp_res_format - 1)))) { - err = -EOPNOTSUPP; - mlx5_ib_warn(dev, "CQE compression res format %d is not supported!\n", - ucmd.cqe_comp_res_format); + mini_cqe_format = + mini_cqe_res_format_to_hw(dev, + ucmd.cqe_comp_res_format); + if (mini_cqe_format < 0) { + err = mini_cqe_format; + mlx5_ib_dbg(dev, "CQE compression res format %d error: %d\n", + ucmd.cqe_comp_res_format, err); goto err_cqb; } MLX5_SET(cqc, cqc, cqe_comp_en, 1); - MLX5_SET(cqc, cqc, mini_cqe_res_format, - ilog2(ucmd.cqe_comp_res_format)); + MLX5_SET(cqc, cqc, mini_cqe_res_format, mini_cqe_format); } if (ucmd.flags & MLX5_IB_CREATE_CQ_FLAGS_CQE_128B_PAD) { |