diff options
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/fw.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/fw.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fw.c b/drivers/net/ethernet/mellanox/mlx5/core/fw.c index 9335e5ae18cc..aa0d5ffe92d8 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/fw.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/fw.c @@ -200,3 +200,25 @@ int mlx5_cmd_teardown_hca(struct mlx5_core_dev *dev) return err; } + +int mlx5_core_query_special_context(struct mlx5_core_dev *dev, u32 *rsvd_lkey) +{ + struct mlx5_cmd_query_special_contexts_mbox_in in; + struct mlx5_cmd_query_special_contexts_mbox_out out; + int err; + + memset(&in, 0, sizeof(in)); + memset(&out, 0, sizeof(out)); + in.hdr.opcode = cpu_to_be16(MLX5_CMD_OP_QUERY_SPECIAL_CONTEXTS); + err = mlx5_cmd_exec(dev, &in, sizeof(in), &out, sizeof(out)); + if (err) + return err; + + if (out.hdr.status) + err = mlx5_cmd_status_to_err(&out.hdr); + + *rsvd_lkey = be32_to_cpu(out.resd_lkey); + + return err; +} +EXPORT_SYMBOL(mlx5_core_query_special_context); |