RDMA_DEREG_MR(3) Librdmacm Programmer's Manual RDMA_DEREG_MR(3)
rdma_dereg_mr - deregisters a registered memory region.
#include <rdma/rdma_verbs.h> int rdma_dereg_mr (struct ibv_mr *mr);
mr A reference to a registered memory buffer.
Deregisters a memory buffer that had been registered for RDMA or message operations. A user should call rdma_dereg_mr for all registered memory associated with an rdma_cm_id before destroying the rdma_cm_id.
Returns 0 on success, or -1 on error. If an error occurs, errno will be set to indicate the failure reason.
All memory registered with an rdma_cm_id is associated with the protection domain associated with the id. Users must deregister all registered memory before the protection domain can be destroyed.
rdma_cm(7), rdma_create_id(3), rdma_create_ep(3), rdma_destroy_id(3), rdma_destroy_ep(3), rdma_reg_msgs(3), rdma_reg_read(3), rdma_reg_write(3), ibv_reg_mr(3), ibv_dereg_mr(3)
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 firstname.lastname@example.org. This page was obtained from the project's upstream Git repository ⟨https://github.com/linux-rdma/rdma-core.git⟩ on 2021-04-01. (At that time, the date of the most recent commit that was found in the repository was 2021-03-24.) 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 email@example.com librdmacm 2010-07-19 RDMA_DEREG_MR(3)
Pages that refer to this page: rdma_cm(7)