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mlx4dv_query_device - Query device capabilities specific to mlx4
Contents
Description
mlx4dv_query_device() Query mlx4 specific device information that is usable via the direct verbs
interface.
This function returns a version and compatibility mask. The version represents the format of the internal
hardware structures that mlx4dv.h exposes. Future additions of new fields to the existing structures are
handled by the comp_mask field.
struct mlx4dv_context {
uint8_t version;
uint32_t max_inl_recv_sz; /* Maximum supported size of inline receive */
uint64_t comp_mask;
};
Name
mlx4dv_query_device - Query device capabilities specific to mlx4
Notes
* Compatibility mask (comp_mask) is an in/out field.
Return Value
0 on success or the value of errno on failure (which indicates the failure reason).
See Also
mlx4dv(7), ibv_query_device(3)
Synopsis
#include<infiniband/mlx4dv.h>intmlx4dv_query_device(structibv_context*ctx_in,structmlx4dv_context*attrs_out);
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