Movatterモバイル変換

efadv_query_qp_wqs(3) — Linux manual page

EFADV_QUERY_QP_WQS(3)    EFA Direct Verbs ManualEFADV_QUERY_QP_WQS(3)

NAME        top

       efadv_query_qp_wqs - Query EFA specific Queue Pair work queue       attributes

SYNOPSIS        top

              #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        top

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        top

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

SEE ALSO        top

efadv(7)

NOTES        top

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

AUTHORS        top

       Michael Margolin ⟨mrgolin@amazon.com⟩

COLOPHON        top

       This page is part of therdma-core (RDMA Core Userspace Libraries       and Daemons) project.  Information about the project can be found       at ⟨https://github.com/linux-rdma/rdma-core⟩.  If you have a bug       report for this manual page, send it to       linux-rdma@vger.kernel.org.  This page was obtained from the       project's upstream Git repository       ⟨https://github.com/linux-rdma/rdma-core.git⟩ on 2025-08-11.  (At       that time, the date of the most recent commit that was found in       the repository was 2025-08-04.)  If you discover any rendering       problems in this HTML version of the page, or you believe there is       a better or more up-to-date source for the page, or you have       corrections or improvements to the information in this COLOPHON       (which isnot part of the original manual page), send a mail to       man-pages@man7.orgefa                             2025-05-14EFADV_QUERY_QP_WQS(3)

HTML rendering created 2025-09-06 byMichael Kerrisk, author ofThe Linux Programming Interface. For details of in-depthLinux/UNIX system programming training courses that I teach, lookhere. Hosting byjambit GmbH.