dapl_lmr_sync_rdma.c revision 9517:b4839b0aa7a4 
1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22/*
23 * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
24 * Use is subject to license terms.
25 */
26
27/*
28 *
29 * MODULE: dapl_lmr_sync_rdma.c
30 *
31 * PURPOSE: Non-coherent Memory Support
32 * Description: Interfaces in this file are completely described in
33 *		the DAPL 1.2 API, Chapter 6, section 7
34 *
35 */
36
37#include "dapl.h"
38#include "dapl_adapter_util.h"
39
40/*
41 * dapl_lmr_sync_rdma_read
42 *
43 * uDAPL: User Direct Access Program Library Version 1.2, 6.7.4.1
44 *
45 * make memory changes visible to an incoming RDMA Read operation.
46 * This operation guarantees consistency by locally flushing the non-coherent
47 * cache prior to it being retrieved by remote peer RDMA read operation(s)
48 *
49 * Input:
50 * 	ia_handle
51 * 	local_segments
52 * 	num_segments
53 *
54 * Output:
55 * 	none
56 *
57 * Returns:
58 * 	DAT_SUCCESS
59 * 	DAT_INVALID_HANDLE
60 * 	DAT_INVALID_PARAMETER
61 */
62
63DAT_RETURN
64dapl_lmr_sync_rdma_read(
65	IN	DAT_IA_HANDLE ia_handle,
66	IN 	const DAT_LMR_TRIPLET *local_segments,
67	IN	DAT_VLEN num_segments)
68{
69	return (dapls_ib_lmr_sync_rdma_common(ia_handle, local_segments,
70	    num_segments, DAPL_MR_SYNC_RDMA_RD));
71}
72
73/*
74 * dapl_lmr_sync_rdma_write
75 *
76 * uDAPL: User Direct Access Program Library Version 1.2, 6.7.4.1
77 *
78 * make effects of an incoming RDMA Write operation visible to Consumer.
79 * This operation guarantees consistency by locally invalidating the
80 * non-coherent cache whose buffer has been populated by remote peer
81 * RDMA write operation(s).
82 *
83 * Input:
84 * 	ia_handle
85 * 	local_segments
86 * 	num_segments
87 *
88 * Output:
89 * 	none
90 *
91 * Returns:
92 * 	DAT_SUCCESS
93 * 	DAT_INVALID_HANDLE
94 * 	DAT_INVALID_PARAMETER
95 */
96
97DAT_RETURN
98dapl_lmr_sync_rdma_write(
99	IN	DAT_IA_HANDLE ia_handle,
100	IN 	const DAT_LMR_TRIPLET *local_segments,
101	IN	DAT_VLEN num_segments)
102{
103	return (dapls_ib_lmr_sync_rdma_common(ia_handle, local_segments,
104	    num_segments, DAPL_MR_SYNC_RDMA_WR));
105}
106