ibv_import_pd, ibv_unimpLibibverbs ProgrammeribvMimport_pd, ibv_unimport_pd(3)
NAME
ibv_import_pd - import a PD from a given ibv_context
ibv_unimport_pd - unimport a PD
SYNOPSIS
#include <infiniband/verbs.h>
struct ibv_pd *ibv_import_pd(struct ibv_context *context, uint32_t pd_handle);
void ibv_unimport_pd(struct ibv_pd *pd)
DESCRIPTION
ibv_import_pd() returns a protection domain (PD) that is associated
with the given pd_handle in the given context.
The input pd_handle value must be a valid kernel handle for a PD object
in the given context. It can be achieved from the original PD by get-
ting its ibv_pd->handle member value.
The returned ibv_pd can be used in all verbs that get a protection do-
main.
ibv_unimport_pd() unimport the PD. Once the PD usage has been ended
ibv_dealloc_pd() or ibv_unimport_pd() should be called. The first one
will go to the kernel to destroy the object once the second one way
cleanup what ever is needed/opposite of the import without calling the
kernel.
This is the responsibility of the application to coordinate between all
ibv_context(s) that use this PD. Once destroy is done no other process
can touch the object except for unimport. All users of the context
must collaborate to ensure this.
RETURN VALUE
ibv_import_pd() returns a pointer to the allocated PD, or NULL if the
request fails.
SEE ALSO
ibv_alloc_pd(3), ibv_dealloc_pd(3),
AUTHOR
Yishai Hadas <yishaih@mellanox.com>
libibverbs 2020-5-3 ibv_import_pd, ibv_unimport_pd(3)
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