Fatal division by zero attempted Post: 303040605

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rdma_reg_msgs

RDMA_REG_MSGS(3)					   Librdmacm Programmer's Manual					  RDMA_REG_MSGS(3)

NAME

       rdma_reg_msgs - register data buffer(s) for sending or receiving messages.

SYNOPSIS

       #include <rdma/rdma_verbs.h>

       struct ibv_mr * rdma_reg_msgs (struct rdma_cm_id *id, void *addr, size_t length);

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.

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 reqeust.

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.

NOTES

       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.

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)

librdmacm							    2010-07-19							  RDMA_REG_MSGS(3)