udapl_tavor/common/dapl_lmr_util.c

9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor/*
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor * CDDL HEADER START
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor *
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor * The contents of this file are subject to the terms of the
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor * Common Development and Distribution License (the "License").
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor * You may not use this file except in compliance with the License.
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor *
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor * or http://www.opensolaris.org/os/licensing.
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor * See the License for the specific language governing permissions
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor * and limitations under the License.
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor *
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor * When distributing Covered Code, include this CDDL HEADER in each
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor * If applicable, add the following below this CDDL HEADER, with the
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor * fields enclosed by brackets "[]" replaced with your own identifying
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor * information: Portions Copyright [yyyy] [name of copyright owner]
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9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor */
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor/*
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor * Copyright (c) 2002-2003, Network Appliance, Inc. All rights reserved.
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor */
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor/*
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor * Use is subject to license terms.
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor */
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor/*
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor *
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor * MODULE: dapl_lmr_util.c
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor *
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor * PURPOSE: Memory management support routines
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor * Description: Support routines for LMR functions
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor *
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor */
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor#include <sys/ib/ibtl/ibtl_types.h>
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor#include "dapl_lmr_util.h"
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor#include "dapl_ia_util.h"
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor
9e39c5ba00a55fa05777cc94b148296af305e135Bill TaylorDAPL_LMR *
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylordapl_lmr_alloc(IN DAPL_IA *ia,
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor    IN DAT_MEM_TYPE mem_type,
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor    IN DAT_REGION_DESCRIPTION region_desc,
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor    IN DAT_VLEN length,
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor    IN DAT_PZ_HANDLE pz_handle,
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor    IN DAT_MEM_PRIV_FLAGS mem_priv)
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor{
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor    DAPL_LMR *lmr;
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor    /* Allocate LMR */
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor    lmr = (DAPL_LMR *)dapl_os_alloc(sizeof (DAPL_LMR));
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor    if (NULL == lmr) {
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor        return (NULL);
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor    }
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor    /* zero the structure */
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor    (void) dapl_os_memzero(lmr, sizeof (DAPL_LMR));
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor    /*
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor     * initialize the header
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor     */
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor    lmr->header.provider = ia->header.provider;
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor    lmr->header.magic = DAPL_MAGIC_LMR;
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor    lmr->header.handle_type = DAT_HANDLE_TYPE_LMR;
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor    lmr->header.owner_ia = ia;
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor    lmr->header.user_context.as_64 = 0;
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor    lmr->header.user_context.as_ptr = NULL;
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor    dapl_llist_init_entry(&lmr->header.ia_list_entry);
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor    dapl_ia_link_lmr(ia, lmr);
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor    dapl_os_lock_init(&lmr->header.lock);
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor    /*
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor     * initialize the body
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor     */
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor    lmr->param.ia_handle = (DAT_IA_HANDLE)ia;
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor    lmr->param.mem_type = mem_type;
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor    lmr->param.region_desc = region_desc;
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor    lmr->param.length = length;
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor    lmr->param.pz_handle = pz_handle;
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor    lmr->param.mem_priv = mem_priv;
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor    lmr->lmr_ref_count = 0;
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor    return (lmr);
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor}
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylorvoid
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylordapl_lmr_dealloc(IN DAPL_LMR *lmr)
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor{
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor    /* reset magic to prevent reuse */
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor    lmr->header.magic = DAPL_MAGIC_INVALID;
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor    dapl_ia_unlink_lmr(lmr->header.owner_ia, lmr);
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor    dapl_os_lock_destroy(&lmr->header.lock);
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor    dapl_os_free((void *) lmr, sizeof (DAPL_LMR));
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor}
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylorint32_t
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylordapl_lmr_convert_privileges(IN DAT_MEM_PRIV_FLAGS privileges)
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor{
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor    int32_t value = 0;
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor    /*
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor     *    if (DAT_MEM_PRIV_LOCAL_READ_FLAG & privileges)
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor     *  do nothing
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor     */
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor    if (DAT_MEM_PRIV_LOCAL_WRITE_FLAG & privileges) {
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor        value |= IB_ACCESS_LOCAL_WRITE;
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor    }
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor    if (DAT_MEM_PRIV_REMOTE_READ_FLAG & privileges) {
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor        value |= IB_ACCESS_REMOTE_READ;
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor    }
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor    if (DAT_MEM_PRIV_REMOTE_WRITE_FLAG & privileges) {
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor        value |= IB_ACCESS_REMOTE_WRITE;
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor    }
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor    if (DAT_MEM_PRIV_RO_DISABLE_FLAG & privileges) {
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor        value |= IBT_MR_DISABLE_RO;
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor    }
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor    return (value);
9e39c5ba00a55fa05777cc94b148296af305e135Bill Taylor}