mlx4dv_set_context_attr(3)                          mlx4dv_set_context_attr(3)

NAME
       mlx4dv_set_context_attr - Set context attributes

SYNOPSIS
              #include <infiniband/mlx4dv.h>

              int mlx4dv_set_context_attr(struct ibv_context *context,
                                          enum mlx4dv_set_ctx_attr_type attr_type,
                                          void *attr);

DESCRIPTION
       mlx4dv_set_context_attr gives the ability to set vendor specific
       attributes on the RDMA context.

ARGUMENTS
       context
              RDMA device context to work on.

       attr_type
              The type of the provided attribute.

       attr   Pointer to the attribute to be set.  ## attr_type

              enum mlx4dv_set_ctx_attr_type {
                  /* Attribute type uint8_t */
                  MLX4DV_SET_CTX_ATTR_LOG_WQS_RANGE_SZ    = 0,
                  MLX4DV_SET_CTX_ATTR_BUF_ALLOCATORS  = 1,
              };

       MLX4DV_SET_CTX_ATTR_LOG_WQS_RANGE_SZ
              Change the LOG WQs Range size for RSS

       MLX4DV_SET_CTX_ATTR_BUF_ALLOCATORS
              Provide an external buffer allocator

              struct mlx4dv_ctx_allocators {
                  void *(*alloc)(size_t size, void *priv_data);
                  void (*free)(void *ptr, void *priv_data);
                  void *data;
              };

       alloc  Function used for buffer allocation instead of libmlx4 internal
              method

       free   Function used to free buffers allocated by alloc function

       data   Metadata that can be used by alloc and free functions

RETURN VALUE
       Returns 0 on success, or the value of errno on failure (which indicates
       the failure reason).

       #AUTHOR

       Majd Dibbiny <majd@mellanox.com>

                                                    mlx4dv_set_context_attr(3)