mlx4dv_set_context_attr

Section: (3)
Updated:
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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>


 

Index

NAME
SYNOPSIS
DESCRIPTION
ARGUMENTS
RETURN VALUE