d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy/*
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy * CDDL HEADER START
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy *
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy * The contents of this file are subject to the terms of the
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy * Common Development and Distribution License (the "License").
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy * You may not use this file except in compliance with the License.
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy *
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy * or http://www.opensolaris.org/os/licensing.
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy * See the License for the specific language governing permissions
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy * and limitations under the License.
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy *
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy * When distributing Covered Code, include this CDDL HEADER in each
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy * If applicable, add the following below this CDDL HEADER, with the
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy * fields enclosed by brackets "[]" replaced with your own identifying
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy * information: Portions Copyright [yyyy] [name of copyright owner]
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy *
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy * CDDL HEADER END
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy */
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy/*
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy * Copyright (c) 2002-2003, Network Appliance, Inc. All rights reserved.
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy */
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy/*
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy * Copyright 2003 Sun Microsystems, Inc. All rights reserved.
1d32ba663e202c24a5a1f2e5aef83fffb447cb7fJohn Wren Kennedy * Use is subject to license terms.
1d32ba663e202c24a5a1f2e5aef83fffb447cb7fJohn Wren Kennedy */
1d32ba663e202c24a5a1f2e5aef83fffb447cb7fJohn Wren Kennedy
1d32ba663e202c24a5a1f2e5aef83fffb447cb7fJohn Wren Kennedy#include "dapl_mr_util.h"
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy/*
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy *
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy * MODULE: dapl_mr_util.c
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy *
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy * PURPOSE: Common Memory Management functions and data structures
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy *
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy */
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy/*
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy *
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy * Function Definitions
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy *
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy */
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy/*
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy * dapl_mr_get_address
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy *
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy * Returns the memory address associated with the given memory descriptor
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy *
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy */
1d32ba663e202c24a5a1f2e5aef83fffb447cb7fJohn Wren KennedyDAT_VADDR
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedydapl_mr_get_address(DAT_REGION_DESCRIPTION desc, DAT_MEM_TYPE type)
1d32ba663e202c24a5a1f2e5aef83fffb447cb7fJohn Wren Kennedy{
1d32ba663e202c24a5a1f2e5aef83fffb447cb7fJohn Wren Kennedy switch (type) {
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy case DAT_MEM_TYPE_VIRTUAL: {
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy return ((DAT_VADDR)(uintptr_t)desc.for_va);
1d32ba663e202c24a5a1f2e5aef83fffb447cb7fJohn Wren Kennedy }
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy case DAT_MEM_TYPE_LMR: {
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy DAPL_LMR *lmr;
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy
1d32ba663e202c24a5a1f2e5aef83fffb447cb7fJohn Wren Kennedy lmr = (DAPL_LMR *)desc.for_lmr_handle;
1d32ba663e202c24a5a1f2e5aef83fffb447cb7fJohn Wren Kennedy
1d32ba663e202c24a5a1f2e5aef83fffb447cb7fJohn Wren Kennedy /* Since this function is recoursive we cannot inline it */
1d32ba663e202c24a5a1f2e5aef83fffb447cb7fJohn Wren Kennedy return (dapl_mr_get_address(lmr->param.region_desc,
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy lmr->param.mem_type));
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy }
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy case DAT_MEM_TYPE_SHARED_VIRTUAL: {
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy return ((DAT_VADDR)(uintptr_t)
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy desc.for_shared_memory.virtual_address);
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy }
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy default:
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy dapl_os_assert(0);
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy return (0);
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy }
1d32ba663e202c24a5a1f2e5aef83fffb447cb7fJohn Wren Kennedy}
1d32ba663e202c24a5a1f2e5aef83fffb447cb7fJohn Wren Kennedy
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy/*
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy * dapl_mr_bounds_check
1d32ba663e202c24a5a1f2e5aef83fffb447cb7fJohn Wren Kennedy *
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy * Returns true if region B is contained within region A
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy * and false otherwise
1d32ba663e202c24a5a1f2e5aef83fffb447cb7fJohn Wren Kennedy *
1d32ba663e202c24a5a1f2e5aef83fffb447cb7fJohn Wren Kennedy */
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren KennedyDAT_BOOLEAN
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedydapl_mr_bounds_check(DAT_VADDR addr_a, DAT_VLEN length_a,
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy DAT_VADDR addr_b, DAT_VLEN length_b)
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy{
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy if ((addr_a <= addr_b) &&
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy (addr_b + length_b) <= (addr_a + length_a)) {
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy return (DAT_TRUE);
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy } else {
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy return (DAT_FALSE);
1d32ba663e202c24a5a1f2e5aef83fffb447cb7fJohn Wren Kennedy }
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy}
d583b39bfb4e2571d3e41097c5c357ffe353ad45John Wren Kennedy