Password issues Post: 302847791

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rdma_dereg_mr

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>

       struct ibv_mr * 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 associated with the id.  Users must deregister all regis-
       tered 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)

librdmacm							    2010-07-19							  RDMA_DEREG_MR(3)