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.\" -*- nroff -*-
.TH IBV_ALLOC_PD 3 2006-10-31 libibverbs "Libibverbs Programmer's Manual"
ibv_alloc_pd, ibv_dealloc_pd \- allocate or deallocate a protection domain (PDs)
.B #include <infiniband/verbs.h>
.BI "struct ibv_pd *ibv_alloc_pd(struct ibv_context " "*context" );
.BI "int ibv_dealloc_pd(struct ibv_pd " "*pd" );
.B ibv_alloc_pd()
allocates a PD for the RDMA device context
.I context\fR.
.B ibv_dealloc_pd()
deallocates the PD
.I pd\fR.
.B ibv_alloc_pd()
returns a pointer to the allocated PD, or NULL if the request fails.
.B ibv_dealloc_pd()
returns 0 on success, or the value of errno on failure (which indicates the failure reason).
.B ibv_dealloc_pd()
may fail if any other resource is still associated with the PD being
.BR ibv_reg_mr (3),
.BR ibv_create_srq (3),
.BR ibv_create_qp (3),
.BR ibv_create_ah (3),
.BR ibv_create_ah_from_wc (3)
Dotan Barak <>