xref: /titanic_44/usr/src/man/man3dat/dat_rmr_free.3dat (revision 22ca5eba2a84a9612aa439c234327fda99608f01)
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This manual page is derived from the DAT/uDAPL 1.2 specification.
Portions Copyright (c) 2007, Sun Microsystems, Inc. All Rights Reserved.
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When distributing Covered Code, include this CDDL HEADER in each file and include the License file at usr/src/OPENSOLARIS.LICENSE. If applicable, add the following below this CDDL HEADER, with the fields enclosed by brackets "[]" replaced with your own identifying information: Portions Copyright [yyyy] [name of copyright owner]
DAT_RMR_FREE 3DAT "Jul 16, 2004"
NAME
dat_rmr_free - destroy an instance of the RMR
SYNOPSIS

cc [ flag.\|.\|. ] file.\|.\|. -ldat [ library.\|.\|. ]
#include <dat/udat.h>

DAT_RETURN
 dat_rmr_free (
 IN DAT_RMR_HANDLE rmr_handle
 )
PARAMETERS
rmr_handle

Handle for an instance of the RMR to be destroyed.

DESCRIPTION

The dat_rmr_free() function destroys an instance of the RMR.

Use of the handle of the destroyed RMR in any subsequent operation except for the dat_rmr_free() fails. Any remote RDMA operation that uses the destroyed RMR rmr_context, whose Transport-specific request arrived to the local host after the dat_rmr_free() has completed, fails and reports a protection violation. Remote RDMA operation that uses the destroyed RMR rmr_context, whose Transport-specific request arrived to the local host prior to the dat_rmr_free() return, might or might not complete successfully. If it fails, DAT_DTO_ERR_REMOTE_ACCESS is reported in DAT_DTO_COMPLETION_STATUS for the remote RDMA DTO and the connection is broken.

The dat_rmr_free() function is allowed on either bound or unbound RMR. If RMR is bound, dat_rmr_free() unbinds (free HCA TPT and other resources and whatever else binds with length of 0 should do), and then free RMR.

RETURN VALUES
DAT_SUCCESS

The operation was successful.

DAT_INVALID_HANDLE

The rmr_handle handle is invalid.

ATTRIBUTES

See attributes(5) for descriptions of the following attributes:

ATTRIBUTE TYPE ATTRIBUTE VALUE
Interface Stability Standard: uDAPL, 1.1, 1.2
MT-Level Unsafe
SEE ALSO

libdat(3LIB), attributes(5)