Merge tag 'for-linus-2' of git://git.code.sf.net/p/openipmi/linux-ipmi

[cascardo/linux.git] / drivers / net / ethernet / mellanox / mlx5 / core / fw.c

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fw.c b/drivers/net/ethernet/mellanox/mlx5/core/fw.c
index 087c4c7..06f9036 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/fw.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fw.c
@@ -69,6 +69,46 @@ int mlx5_cmd_query_hca_cap(struct mlx5_core_dev *dev, struct mlx5_caps *caps)
        return mlx5_core_get_caps(dev, caps, HCA_CAP_OPMOD_GET_CUR);
 }
 
+int mlx5_query_odp_caps(struct mlx5_core_dev *dev, struct mlx5_odp_caps *caps)
+{
+       u8 in[MLX5_ST_SZ_BYTES(query_hca_cap_in)];
+       int out_sz = MLX5_ST_SZ_BYTES(query_hca_cap_out);
+       void *out;
+       int err;
+
+       if (!(dev->caps.gen.flags & MLX5_DEV_CAP_FLAG_ON_DMND_PG))
+               return -ENOTSUPP;
+
+       memset(in, 0, sizeof(in));
+       out = kzalloc(out_sz, GFP_KERNEL);
+       if (!out)
+               return -ENOMEM;
+       MLX5_SET(query_hca_cap_in, in, opcode, MLX5_CMD_OP_QUERY_HCA_CAP);
+       MLX5_SET(query_hca_cap_in, in, op_mod, HCA_CAP_OPMOD_GET_ODP_CUR);
+       err = mlx5_cmd_exec(dev, in, sizeof(in), out, out_sz);
+       if (err)
+               goto out;
+
+       err = mlx5_cmd_status_to_err_v2(out);
+       if (err) {
+               mlx5_core_warn(dev, "query cur hca ODP caps failed, %d\n", err);
+               goto out;
+       }
+
+       memcpy(caps, MLX5_ADDR_OF(query_hca_cap_out, out, capability_struct),
+              sizeof(*caps));
+
+       mlx5_core_dbg(dev, "on-demand paging capabilities:\nrc: %08x\nuc: %08x\nud: %08x\n",
+               be32_to_cpu(caps->per_transport_caps.rc_odp_caps),
+               be32_to_cpu(caps->per_transport_caps.uc_odp_caps),
+               be32_to_cpu(caps->per_transport_caps.ud_odp_caps));
+
+out:
+       kfree(out);
+       return err;
+}
+EXPORT_SYMBOL(mlx5_query_odp_caps);
+
 int mlx5_cmd_init_hca(struct mlx5_core_dev *dev)
 {
        struct mlx5_cmd_init_hca_mbox_in in;