On Tue, Dec 26, 2017 at 11:16 AM, Leon Romanovsky <leon@xxxxxxxxxx> wrote:
> +int mlx5_core_create_dct(struct mlx5_core_dev *dev,
> + struct mlx5_core_dct *dct,
> + u32 *in, int inlen)
> +{
> + struct mlx5_core_qp *qp = &dct->mqp;
> + u32 out[MLX5_ST_SZ_DW(create_dct_out)] = {0};
> + u32 din[MLX5_ST_SZ_DW(destroy_dct_in)] = {0};
> + u32 dout[MLX5_ST_SZ_DW(destroy_dct_out)] = {0};
> + int err;
hey it's EOY now... can we do better with respect to reverse xmas tree here?
> +
> + init_completion(&dct->drained);
> + MLX5_SET(create_dct_in, in, opcode, MLX5_CMD_OP_CREATE_DCT);
> +
> + err = mlx5_cmd_exec(dev, in, inlen, &out, sizeof(out));
> + if (err) {
> + mlx5_core_warn(dev, "create DCT failed, ret %d\n", err);
> + return err;
> + }
> +
> + qp->qpn = MLX5_GET(create_dct_out, out, dctn);
> + err = create_resource_common(dev, qp, MLX5_RES_DCT);
> + if (err)
> + goto err_cmd;
> +
> + return 0;
> +err_cmd:
> + MLX5_SET(destroy_dct_in, din, opcode, MLX5_CMD_OP_DESTROY_DCT);
> + MLX5_SET(destroy_dct_in, din, dctn, qp->qpn);
> + mlx5_cmd_exec(dev, (void *)&in, sizeof(din), (void *)&out, sizeof(dout));
> + return err;
> +}
> +EXPORT_SYMBOL_GPL(mlx5_core_create_dct);
> +
> int mlx5_core_create_qp(struct mlx5_core_dev *dev,
> struct mlx5_core_qp *qp,
> u32 *in, int inlen)
> @@ -197,7 +246,7 @@ int mlx5_core_create_qp(struct mlx5_core_dev *dev,
> qp->qpn = MLX5_GET(create_qp_out, out, qpn);
> mlx5_core_dbg(dev, "qpn = 0x%x\n", qp->qpn);
>
> - err = create_qprqsq_common(dev, qp, MLX5_RES_QP);
> + err = create_resource_common(dev, qp, MLX5_RES_QP);
> if (err)
> goto err_cmd;
>
> @@ -220,6 +269,47 @@ int mlx5_core_create_qp(struct mlx5_core_dev *dev,
> }
> EXPORT_SYMBOL_GPL(mlx5_core_create_qp);
>
> +static int mlx5_core_drain_dct(struct mlx5_core_dev *dev,
> + struct mlx5_core_dct *dct)
> +{
> + struct mlx5_core_qp *qp = &dct->mqp;
> + u32 out[MLX5_ST_SZ_DW(drain_dct_out)] = {0};
> + u32 in[MLX5_ST_SZ_DW(drain_dct_in)] = {0};
same comment
> +
> + MLX5_SET(drain_dct_in, in, opcode, MLX5_CMD_OP_DRAIN_DCT);
> + MLX5_SET(drain_dct_in, in, dctn, qp->qpn);
> + return mlx5_cmd_exec(dev, (void *)&in, sizeof(in),
> + (void *)&out, sizeof(out));
> +}
> +
> +int mlx5_core_destroy_dct(struct mlx5_core_dev *dev,
> + struct mlx5_core_dct *dct)
> +{
> + struct mlx5_core_qp *qp = &dct->mqp;
> + u32 out[MLX5_ST_SZ_DW(destroy_dct_out)] = {0};
> + u32 in[MLX5_ST_SZ_DW(destroy_dct_in)] = {0};
> + int err;
same comment
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