User  |  Syst  |  Libr  |  Device  |  Files  |  Other  |  Admin  |  Head  |

---

   rdma_dereg_mr    ( 3 )

---

---

Имя (Name)

rdma_dereg_mr - deregisters a registered memory region.

---

Синопсис (Synopsis)

#include <rdma/rdma_verbs.h>

       int rdma_dereg_mr (struct ibv_mr *mr);

---

Аргументы (Arguments)

mr          A reference to a registered memory buffer.

---

Описание (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.

---

Возвращаемое значение (Return value)

Returns 0 on success, or -1 on error.  If an error occurs, errno
       will be set to indicate the failure reason.

---

Примечание (Note)

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.

---

Смотри также (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)

---