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
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
|
/*
* 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.gnu.org/licenses/gpl-2.0.html
*
* GPL HEADER END
*/
/*
* Copyright (c) 2007, 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_LNET
#include <linux/lnet/lib-lnet.h>
static int
lolnd_send(struct lnet_ni *ni, void *private, struct lnet_msg *lntmsg)
{
LASSERT(!lntmsg->msg_routing);
LASSERT(!lntmsg->msg_target_is_router);
return lnet_parse(ni, &lntmsg->msg_hdr, ni->ni_nid, lntmsg, 0);
}
static int
lolnd_recv(struct lnet_ni *ni, void *private, struct lnet_msg *lntmsg,
int delayed, struct iov_iter *to, unsigned int rlen)
{
struct lnet_msg *sendmsg = private;
if (lntmsg) { /* not discarding */
if (sendmsg->msg_iov)
lnet_copy_iov2iter(to,
sendmsg->msg_niov,
sendmsg->msg_iov,
sendmsg->msg_offset,
iov_iter_count(to));
else
lnet_copy_kiov2iter(to,
sendmsg->msg_niov,
sendmsg->msg_kiov,
sendmsg->msg_offset,
iov_iter_count(to));
lnet_finalize(ni, lntmsg, 0);
}
lnet_finalize(ni, sendmsg, 0);
return 0;
}
static int lolnd_instanced;
static void
lolnd_shutdown(struct lnet_ni *ni)
{
CDEBUG(D_NET, "shutdown\n");
LASSERT(lolnd_instanced);
lolnd_instanced = 0;
}
static int
lolnd_startup(struct lnet_ni *ni)
{
LASSERT(ni->ni_lnd == &the_lolnd);
LASSERT(!lolnd_instanced);
lolnd_instanced = 1;
return 0;
}
struct lnet_lnd the_lolnd = {
/* .lnd_list = */ {&the_lolnd.lnd_list, &the_lolnd.lnd_list},
/* .lnd_refcount = */ 0,
/* .lnd_type = */ LOLND,
/* .lnd_startup = */ lolnd_startup,
/* .lnd_shutdown = */ lolnd_shutdown,
/* .lnt_ctl = */ NULL,
/* .lnd_send = */ lolnd_send,
/* .lnd_recv = */ lolnd_recv,
/* .lnd_eager_recv = */ NULL,
/* .lnd_notify = */ NULL,
/* .lnd_accept = */ NULL
};
|
