регистрировать буфер (ы) данных для отправки или получения сообщений (register data buffer(s) for sending or receiving messages.)
Имя (Name)
rdma_reg_msgs - register data buffer(s) for sending or receiving
messages.
Синопсис (Synopsis)
#include <rdma/rdma_verbs.h>
struct ibv_mr * rdma_reg_msgs (struct rdma_cm_id *id, void *addr,
size_t length);
Аргументы (Arguments)
id A reference to a communication identifier where the
message buffer(s) will be used.
addr The address of the memory buffer(s) to register.
length The total length of the memory to register.
Описание (Description)
Registers an array of memory buffers used for sending and
receiving messages or for RDMA operations. Memory buffers
registered using rdma_reg_msgs may be posted to an rdma_cm_id
using rdma_post_send or rdma_post_recv, or specified as the
target of an RDMA read operation or the source of an RDMA write
request.
Возвращаемое значение (Return value)
Returns a reference to the registered memory region on success,
or NULL on error. If an error occurs, errno will be set to
indicate the failure reason.
Примечание (Note)
rdma_reg_msgs is used to register an array of data buffers that
will be used send and/or receive messages on a queue pair
associated with an rdma_cm_id. The memory buffer is registered
with the proteection domain associated with the idenfier. The
start of the data buffer array is specified through the addr
parameter, and the total size of the array is given by length.
All data buffers should be registered before being posted as a
work request. Users must deregister all registered memory by
calling rdma_dereg_mr.
Смотри также (See also)
rdma_cm(7), rdma_create_id(3), rdma_create_ep(3),
rdma_reg_read(3), rdma_reg_write(3), ibv_reg_mr(3),
ibv_dereg_mr(3), rdma_post_send(3), rdma_post_recv(3),
rdma_post_read(3), rdma_post_readv(3), rdma_post_write(3),
rdma_post_writev(3)
