NAME

       rpma_send_with_imm - initiate the send operation with immediate data

SYNOPSIS

             #include <librpma.h>

             struct rpma_conn;
             struct rpma_mr_local;
             int rpma_send_with_imm(struct rpma_conn *conn, const struct rpma_mr_local *src,
                             size_t offset, size_t len, int flags, uint32_t imm,
                             const void *op_context);

DESCRIPTION

       rpma_send_with_imm()  initiates  the  send operation with immediate data which transfers a
       message from the local memory to other side of the connection. To send a 0  byte  message,
       set src to NULL and both offset and len to 0.

       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_send_with_imm() function returns 0  on  success  or  a  negative  error  code  on
       failure.

ERRORS

       rpma_send_with_imm() can fail with the following errors:

       •  RPMA_E_INVAL - conn == NULL || flags == 0

       •  RPMA_E_INVAL - src == NULL && (offset != 0 || len != 0)

       •  RPMA_E_PROVIDER - ibv_post_send(3) failed

SEE ALSO

       rpma_conn_req_connect(3), rpma_mr_reg(3), librpma(7) and https://pmem.io/rpma/