/*
* 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 2009 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/*
*
* MODULE: dapl_lmr_util.c
*
* PURPOSE: Memory management support routines
* Description: Support routines for LMR functions
*
*/
#include <sys/ib/ibtl/ibtl_types.h>
#include "dapl_lmr_util.h"
#include "dapl_ia_util.h"
DAPL_LMR *
dapl_lmr_alloc(IN DAPL_IA *ia,
IN DAT_MEM_TYPE mem_type,
IN DAT_REGION_DESCRIPTION region_desc,
IN DAT_VLEN length,
IN DAT_PZ_HANDLE pz_handle,
IN DAT_MEM_PRIV_FLAGS mem_priv)
{
DAPL_LMR *lmr;
/* Allocate LMR */
lmr = (DAPL_LMR *)dapl_os_alloc(sizeof (DAPL_LMR));
if (NULL == lmr) {
return (NULL);
}
/* zero the structure */
(void) dapl_os_memzero(lmr, sizeof (DAPL_LMR));
/*
* initialize the header
*/
lmr->header.provider = ia->header.provider;
lmr->header.magic = DAPL_MAGIC_LMR;
lmr->header.handle_type = DAT_HANDLE_TYPE_LMR;
lmr->header.owner_ia = ia;
lmr->header.user_context.as_64 = 0;
lmr->header.user_context.as_ptr = NULL;
dapl_llist_init_entry(&lmr->header.ia_list_entry);
dapl_ia_link_lmr(ia, lmr);
dapl_os_lock_init(&lmr->header.lock);
/*
* initialize the body
*/
lmr->param.ia_handle = (DAT_IA_HANDLE)ia;
lmr->param.mem_type = mem_type;
lmr->param.region_desc = region_desc;
lmr->param.length = length;
lmr->param.pz_handle = pz_handle;
lmr->param.mem_priv = mem_priv;
lmr->lmr_ref_count = 0;
return (lmr);
}
void
dapl_lmr_dealloc(IN DAPL_LMR *lmr)
{
/* reset magic to prevent reuse */
lmr->header.magic = DAPL_MAGIC_INVALID;
dapl_ia_unlink_lmr(lmr->header.owner_ia, lmr);
dapl_os_lock_destroy(&lmr->header.lock);
dapl_os_free((void *) lmr, sizeof (DAPL_LMR));
}
int32_t
dapl_lmr_convert_privileges(IN DAT_MEM_PRIV_FLAGS privileges)
{
int32_t value = 0;
/*
* if (DAT_MEM_PRIV_LOCAL_READ_FLAG & privileges)
* do nothing
*/
if (DAT_MEM_PRIV_LOCAL_WRITE_FLAG & privileges) {
value |= IB_ACCESS_LOCAL_WRITE;
}
if (DAT_MEM_PRIV_REMOTE_READ_FLAG & privileges) {
value |= IB_ACCESS_REMOTE_READ;
}
if (DAT_MEM_PRIV_REMOTE_WRITE_FLAG & privileges) {
value |= IB_ACCESS_REMOTE_WRITE;
}
if (DAT_MEM_PRIV_RO_DISABLE_FLAG & privileges) {
value |= IBT_MR_DISABLE_RO;
}
return (value);
}