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ibv_alloc_pd(3) — Linux manual page

NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | NOTES | SEE ALSO | AUTHORS | COLOPHON 

IBV_ALLOC_PD(3)       Libibverbs Programmer's Manual      IBV_ALLOC_PD(3)

NAME         top

       ibv_alloc_pd, ibv_dealloc_pd - allocate or deallocate a protection
       domain (PDs)

SYNOPSIS         top

       #include <infiniband/verbs.h>

       struct ibv_pd *ibv_alloc_pd(struct ibv_context *context);

       int ibv_dealloc_pd(struct ibv_pd *pd);

DESCRIPTION         top

       ibv_alloc_pd() allocates a PD for the RDMA device context context.

       ibv_dealloc_pd() deallocates the PD pd.

RETURN VALUE         top

       ibv_alloc_pd() returns a pointer to the allocated PD, or NULL if
       the request fails.

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

NOTES         top

       ibv_dealloc_pd() may fail if any other resource is still
       associated with the PD being freed.

SEE ALSO         top

       ibv_reg_mr(3), ibv_create_srq(3), ibv_create_qp(3),
       ibv_create_ah(3), ibv_create_ah_from_wc(3)

AUTHORS         top

       Dotan Barak <dotanba@gmail.com>

COLOPHON         top

       This page is part of the rdma-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 is not part of the original manual page), send a mail to
       man-pages@man7.org

libibverbs                      2006-10-31                IBV_ALLOC_PD(3)

Pages that refer to this page: ibv_alloc_mw(3),  ibv_alloc_parent_domain(3),  ibv_create_ah(3),  ibv_create_ah_from_wc(3),  ibv_create_qp(3),  ibv_create_qp_ex(3),  ibv_create_srq(3),  ibv_create_srq_ex(3),  ibv_get_srq_num(3),  ibv_import_pd(3),  ibv_open_qp(3),  ibv_reg_mr(3),  ibv_unimport_pd(3)

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