Man page - rpma_atomic_write(3)
Packages contains this manual
- rpma_log_get_threshold(3)
- rpma_conn_delete(3)
- rpma_peer_cfg_new(3)
- rpma_conn_cfg_set_compl_channel(3)
- rpma_srq_get_rcq(3)
- rpma_peer_cfg_get_descriptor(3)
- rpma_srq_cfg_get_rcq_size(3)
- rpma_conn_cfg_delete(3)
- rpma_conn_req_connect(3)
- rpma_mr_get_size(3)
- rpma_peer_cfg_get_descriptor_size(3)
- rpma_conn_cfg_get_compl_channel(3)
- rpma_conn_get_rcq(3)
- rpma_conn_req_recv(3)
- rpma_ep_shutdown(3)
- rpma_write_with_imm(3)
- rpma_srq_cfg_new(3)
- rpma_mr_get_ptr(3)
- rpma_conn_req_new(3)
- rpma_utils_get_ibv_context(3)
- rpma_srq_cfg_delete(3)
- rpma_mr_remote_get_size(3)
- rpma_send_with_imm(3)
- rpma_conn_cfg_get_sq_size(3)
- rpma_mr_dereg(3)
- rpma_peer_cfg_set_direct_write_to_pmem(3)
- rpma_err_2str(3)
- rpma_read(3)
- rpma_conn_cfg_get_timeout(3)
- rpma_utils_conn_event_2str(3)
- rpma_send(3)
- rpma_flush(3)
- rpma_conn_req_delete(3)
- rpma_srq_new(3)
- rpma_mr_remote_get_flush_type(3)
- rpma_peer_cfg_get_direct_write_to_pmem(3)
- rpma_srq_cfg_set_rcq_size(3)
- rpma_peer_delete(3)
- rpma_write(3)
- rpma_conn_cfg_get_rq_size(3)
- rpma_conn_cfg_set_rcq_size(3)
- rpma_conn_req_get_private_data(3)
- rpma_conn_cfg_set_cq_size(3)
- rpma_log_set_function(3)
- rpma_srq_delete(3)
- rpma_log_set_threshold(3)
- rpma_mr_advise(3)
- rpma_conn_next_event(3)
- rpma_mr_get_descriptor_size(3)
- rpma_srq_cfg_get_rq_size(3)
- rpma_conn_cfg_set_srq(3)
- rpma_utils_ibv_context_is_odp_capable(3)
- rpma_ep_next_conn_req(3)
- rpma_conn_cfg_get_rcq_size(3)
- rpma_conn_get_qp_num(3)
- rpma_conn_disconnect(3)
- rpma_mr_reg(3)
- librpma(7)
- rpma_conn_get_compl_fd(3)
- rpma_conn_get_cq(3)
- rpma_ep_get_fd(3)
- rpma_recv(3)
- rpma_conn_cfg_set_rq_size(3)
- rpma_atomic_write(3)
- rpma_conn_cfg_new(3)
- rpma_ep_listen(3)
- rpma_peer_cfg_delete(3)
- rpma_mr_get_descriptor(3)
- rpma_peer_cfg_from_descriptor(3)
- rpma_srq_recv(3)
- rpma_conn_apply_remote_peer_cfg(3)
- rpma_cq_get_fd(3)
- rpma_conn_cfg_get_srq(3)
- rpma_conn_wait(3)
- rpma_mr_remote_from_descriptor(3)
- rpma_srq_cfg_set_rq_size(3)
- rpma_peer_new(3)
- rpma_cq_get_wc(3)
- rpma_conn_cfg_get_cq_size(3)
- rpma_cq_wait(3)
- rpma_conn_get_event_fd(3)
- rpma_mr_remote_delete(3)
- rpma_conn_cfg_set_timeout(3)
- rpma_conn_get_private_data(3)
- rpma_conn_cfg_set_sq_size(3)
apt-get install librpma-dev
Manual
rpma_atomic_write
NAMESYNOPSIS
DESCRIPTION
RETURN VALUE
ERRORS
SEE ALSO
NAME
rpma_atomic_write -- initiate the atomic 8 bytes write operation
SYNOPSIS
#include <librpma.h>
struct
rpma_conn;
struct rpma_mr_remote;
int
rpma_atomic_write
(struct rpma_conn *conn,
struct rpma_mr_remote *dst, size_t dst_offset,
const char src[8], int flags, const void *op_context);
DESCRIPTION
rpma_atomic_write () initiates the atomic 8 bytes write operation (transferring data from the local memory to the remote memory). The atomic write operation allows transferring exactly 8 bytes of data and storing them atomically in the remote memory.
The attribute flags set the completion notification indicator:
|
• |
RPMA_F_COMPLETION_ON_ERROR - generate the completion on error |
||
|
• |
RPMA_F_COMPLETION_ALWAYS - generate the completion regardless of result of the operation. |
op_context is returned in the wr_id field of the completion (struct ibv_wc).
RETURN VALUE
The rpma_atomic_write () function returns 0 on success or a negative error code on failure.
ERRORS
rpma_atomic_write () can fail with the following errors:
|
• |
RPMA_E_INVAL - conn, dst or src is NULL |
|||
|
• |
RPMA_E_INVAL - dst_offset is not aligned to 8 bytes |
|||
|
• |
RPMA_E_INVAL - flags are not set (flags == 0) |
|||
|
• |
RPMA_E_PROVIDER - ibv_post_send (3) failed |
SEE ALSO
rpma_conn_req_connect (3), rpma_mr_reg (3), rpma_mr_remote_from_descriptor (3), librpma (7) and https://pmem.io/rpma/