/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* 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]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 2002-2003, Network Appliance, Inc. All rights reserved.
*/
/*
* Copyright 2004 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/*
*
* MODULE: dapl_lmr_free.c
*
* PURPOSE: Memory management
* Description: Interfaces in this file are completely described in
* the DAPL 1.1 API, Chapter 6, section 6
*
*/
#include "dapl_lmr_util.h"
#include "dapl_adapter_util.h"
#include "dapl_ia_util.h"
/*
* dapl_lmr_free
*
* DAPL Requirements Version xxx, 6.6.3.2
*
* Destroy an instance of the Local Memory Region
*
* Input:
* lmr_handle
*
* Output:
*
* Returns:
* DAT_SUCCESS
* DAT_INVALID_HANDLE
* DAT_INVALID_PARAMETER
* DAT_INVALID_STATE
*/
DAT_RETURN
dapl_lmr_free(IN DAT_LMR_HANDLE lmr_handle)
{
DAPL_LMR *lmr;
DAT_RETURN dat_status;
dapl_dbg_log(DAPL_DBG_TYPE_API, "dapl_lmr_free (%p)\n", lmr_handle);
if (DAPL_BAD_HANDLE(lmr_handle, DAPL_MAGIC_LMR)) {
dat_status = DAT_ERROR(DAT_INVALID_HANDLE,
DAT_INVALID_HANDLE_LMR);
goto bail;
}
lmr = (DAPL_LMR *)lmr_handle;
switch (lmr->param.mem_type) {
case DAT_MEM_TYPE_VIRTUAL:
/* fall through */
case DAT_MEM_TYPE_LMR: {
DAPL_PZ *pz;
if (0 != lmr->lmr_ref_count) {
return (DAT_INVALID_STATE);
}
dat_status = dapls_hash_remove(
lmr->header.owner_ia->hca_ptr->lmr_hash_table,
lmr->param.lmr_context, NULL);
if (dat_status != DAT_SUCCESS) {
goto bail;
}
dat_status = dapls_ib_mr_deregister(lmr);
if (dat_status == DAT_SUCCESS) {
pz = (DAPL_PZ *) lmr->param.pz_handle;
(void) dapl_os_atomic_dec(&pz->pz_ref_count);
dapl_lmr_dealloc(lmr);
} else {
/*
* Deregister failed; put it back in the
* hash table.
*/
(void) dapls_hash_insert(lmr->header.owner_ia->
hca_ptr->lmr_hash_table,
lmr->param.lmr_context, lmr);
}
break;
}
case DAT_MEM_TYPE_SHARED_VIRTUAL: {
dat_status = DAT_ERROR(DAT_NOT_IMPLEMENTED, 0);
break;
}
default:
dat_status = DAT_ERROR(DAT_INVALID_PARAMETER,
DAT_INVALID_ARG1);
break;
}
bail:
return (dat_status);
}