1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
|
/*
* GPL HEADER START
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 only,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License version 2 for more details (a copy is included
* in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU General Public License
* version 2 along with this program; If not, see
* http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*
* GPL HEADER END
*/
/*
* Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
* Lustre is a trademark of Sun Microsystems, Inc.
*/
#define DEBUG_SUBSYSTEM S_RPC
#include <obd_support.h>
#include <obd_class.h>
#include <lustre_lib.h>
#include <lustre_ha.h>
#include <lustre_import.h>
#include "ptlrpc_internal.h"
void ptlrpc_fill_bulk_md(lnet_md_t *md, struct ptlrpc_bulk_desc *desc,
int mdidx)
{
CLASSERT(PTLRPC_MAX_BRW_PAGES < LI_POISON);
LASSERT(mdidx < desc->bd_md_max_brw);
LASSERT(desc->bd_iov_count <= PTLRPC_MAX_BRW_PAGES);
LASSERT(!(md->options & (LNET_MD_IOVEC | LNET_MD_KIOV |
LNET_MD_PHYS)));
md->options |= LNET_MD_KIOV;
md->length = max(0, desc->bd_iov_count - mdidx * LNET_MAX_IOV);
md->length = min_t(unsigned int, LNET_MAX_IOV, md->length);
if (desc->bd_enc_iov)
md->start = &desc->bd_enc_iov[mdidx * LNET_MAX_IOV];
else
md->start = &desc->bd_iov[mdidx * LNET_MAX_IOV];
}
void ptlrpc_add_bulk_page(struct ptlrpc_bulk_desc *desc, struct page *page,
int pageoffset, int len)
{
lnet_kiov_t *kiov = &desc->bd_iov[desc->bd_iov_count];
kiov->kiov_page = page;
kiov->kiov_offset = pageoffset;
kiov->kiov_len = len;
desc->bd_iov_count++;
}
|
