NAME¶

efadv_query_qp_wqs - Query EFA specific Queue Pair work queue attributes

SYNOPSIS¶

#include <infiniband/efadv.h>
int efadv_query_qp_wqs(struct ibv_qp *ibvqp, struct efadv_wq_attr *sq_attr,


                       struct efadv_wq_attr *rq_attr, uint32_t inlen);
    

DESCRIPTION¶

efadv_query_qp_wqs() queries device-specific Queue Pair work queue attributes.

Compatibility is handled using the comp_mask and inlen fields.

struct efadv_wq_attr {


    uint64_t comp_mask;


    uint8_t *buffer;


    uint32_t entry_size;


    uint32_t num_entries;


    uint32_t *doorbell;


    uint32_t max_batch;


    uint8_t reserved[4];
};
    

inlen

In: Size of struct efadv_wq_attr.

comp_mask

Compatibility mask.

buffer

Queue buffer.

entry_size

Size of each entry in the queue.

num_entries

Maximal number of entries in the queue.

doorbell

Queue doorbell.

max_batch

Maximum batch size for queue submissions.

RETURN VALUE¶

efadv_query_qp_wqs() returns 0 on success, or the value of errno on failure (which indicates the failure reason).

SEE ALSO¶

efadv(7)

NOTES¶

•

Compatibility mask (comp_mask) is an out field and currently has no values.

AUTHORS¶

Michael Margolin mrgolin@amazon.com