4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; If not, see
18 * http://www.gnu.org/licenses/gpl-2.0.html
23 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Use is subject to license terms.
27 * This file is part of Lustre, http://www.lustre.org/
29 * lnet/include/lnet/socklnd.h
31 #ifndef __LNET_LNET_SOCKLND_H__
32 #define __LNET_LNET_SOCKLND_H__
34 #include <uapi/linux/lnet/lnet-types.h>
35 #include <uapi/linux/lnet/socklnd.h>
37 struct ksock_hello_msg {
38 __u32 kshm_magic; /* magic number of socklnd message */
39 __u32 kshm_version; /* version of socklnd message */
40 lnet_nid_t kshm_src_nid; /* sender's nid */
41 lnet_nid_t kshm_dst_nid; /* destination nid */
42 lnet_pid_t kshm_src_pid; /* sender's pid */
43 lnet_pid_t kshm_dst_pid; /* destination pid */
44 __u64 kshm_src_incarnation; /* sender's incarnation */
45 __u64 kshm_dst_incarnation; /* destination's incarnation */
46 __u32 kshm_ctype; /* connection type */
47 __u32 kshm_nips; /* # IP addrs */
48 __u32 kshm_ips[0]; /* IP addrs */
51 struct ksock_msg_hdr {
52 __u32 ksh_type; /* type of socklnd message */
53 __u32 ksh_csum; /* checksum if != 0 */
54 __u64 ksh_zc_cookies[2]; /* Zero-Copy request/ACK
59 #define KSOCK_MSG_NOOP 0xc0 /* empty */
60 #define KSOCK_MSG_LNET 0xc1 /* lnet msg */
63 struct ksock_msg_hdr ksm_kh;
65 /* case ksm_kh.ksh_type == KSOCK_MSG_NOOP */
67 /* case ksm_kh.ksh_type == KSOCK_MSG_LNET */
68 struct lnet_hdr lnetmsg;
71 #define ksm_type ksm_kh.ksh_type
72 #define ksm_csum ksm_kh.ksh_csum
73 #define ksm_zc_cookies ksm_kh.ksh_zc_cookies
75 /* We need to know this number to parse hello msg from ksocklnd in
76 * other LND (usocklnd, for example) */
77 #define KSOCK_PROTO_V2 2
78 #define KSOCK_PROTO_V3 3