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

IBV_CREATE_AH_FROM_WC(3)ibibverbs Programmer's ManualBV_CREATE_AH_FROM_WC(3)

NAME         top

       ibv_init_ah_from_wc,  ibv_create_ah_from_wc - initialize or create an
       address handle (AH) from a work completion

SYNOPSIS         top

       #include <infiniband/verbs.h>

       int ibv_init_ah_from_wc(struct ibv_context *context, uint8_t port_num,
                               struct ibv_wc *wc, struct ibv_grh *grh,
                               struct ibv_ah_attr *ah_attr);

       struct ibv_ah *ibv_create_ah_from_wc(struct ibv_pd *pd,
                                            struct ibv_wc *wc,
                                            struct ibv_grh *grh,
                                            uint8_t port_num);

DESCRIPTION         top

       ibv_init_ah_from_wc() initializes the address handle (AH) attribute
       structure ah_attr for the RDMA device context context using the port
       number port_num, using attributes from the work completion wc and the
       Global Routing Header (GRH) structure grh.

       ibv_create_ah_from_wc() creates an AH associated with the protection
       domain pd using the port number port_num, using attributes from the
       work completion wc and the Global Routing Header (GRH) structure grh.

RETURN VALUE         top

       ibv_init_ah_from_wc() returns 0 on success, and -1 on error.

       ibv_create_ah_from_wc() returns a pointer to the created AH, or NULL
       if the request fails.

NOTES         top

       The filled structure ah_attr returned from ibv_init_ah_from_wc() can
       be used to create a new AH using ibv_create_ah().

SEE ALSO         top

       ibv_open_device(3), ibv_alloc_pd(3), ibv_create_ah(3),
       ibv_destroy_ah(3), ibv_poll_cq(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 2019-09-26.  (At
       that time, the date of the most recent commit that was found in the
       repository was 2019-09-25.)  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_CREATE_AH_FROM_WC(3)

Pages that refer to this page: ibv_alloc_pd(3)ibv_create_ah(3)