RDMA_DEREG_MR(3) - Linux man page online | Library functions
Deregisters a registered memory region.
Chapter
2010-07-19
RDMA_DEREG_MR(3) Librdmacm Programmer's Manual RDMA_DEREG_MR(3)
NAME
rdma_dereg_mr - deregisters a registered memory region.SYNOPSIS
#include <rdma/rdma_verbs.h> int rdma_dereg_mr (struct ibv_mr *mr);ARGUMENTS
mr A reference to a registered memory buffer.DESCRIPTION
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.RETURN VALUE
Returns 0 on success, or -1 on error. If an error occurs, errno will be set to indicate the failure reason.NOTES
All memory registered with an rdma_cm_id is associated with the protection domain associ‐ ated with the id. Users must deregister all registered memory before the protection domain can be destroyed.SEE ALSO
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 manual | Reference | Other manuals |
|---|---|---|
| rdma_dereg_mr(3) | referred by | rdma_cm(7) |
| refer to | ibv_reg_mr(3) | rdma_cm(7) | rdma_create_ep(3) | rdma_create_id(3) | rdma_destroy_ep(3) | rdma_destroy_id(3) | rdma_reg_msgs(3) | rdma_reg_read(3) | rdma_reg_write(3) |