efadv_query_qp_wqs - Man Page

#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);

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.

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

efadv(7)

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

Michael Margolin mrgolin@amazon.com\c