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// SPDX-License-Identifier: GPL-2.0
/*
* 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) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
* Copyright (c) 2012 - 2015, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
* Lustre is a trademark of Seagate, Inc.
*
* lnet/include/lnet/socklnd.h
*/
#ifndef __LNET_LNET_SOCKLND_H__
#define __LNET_LNET_SOCKLND_H__
#include <uapi/linux/lnet/lnet-types.h>
#include <uapi/linux/lnet/socklnd.h>
struct ksock_hello_msg {
__u32 kshm_magic; /* magic number of socklnd message */
__u32 kshm_version; /* version of socklnd message */
lnet_nid_t kshm_src_nid; /* sender's nid */
lnet_nid_t kshm_dst_nid; /* destination nid */
lnet_pid_t kshm_src_pid; /* sender's pid */
lnet_pid_t kshm_dst_pid; /* destination pid */
__u64 kshm_src_incarnation; /* sender's incarnation */
__u64 kshm_dst_incarnation; /* destination's incarnation */
__u32 kshm_ctype; /* connection type */
__u32 kshm_nips; /* # IP addrs */
__u32 kshm_ips[0]; /* IP addrs */
} WIRE_ATTR;
struct ksock_lnet_msg {
struct lnet_hdr ksnm_hdr; /* lnet hdr */
/*
* ksnm_payload is removed because of winnt compiler's limitation:
* zero-sized array can only be placed at the tail of [nested]
* structure definitions. lnet payload will be stored just after
* the body of structure ksock_lnet_msg_t
*/
} WIRE_ATTR;
struct ksock_msg {
__u32 ksm_type; /* type of socklnd message */
__u32 ksm_csum; /* checksum if != 0 */
__u64 ksm_zc_cookies[2]; /* Zero-Copy request/ACK cookie */
union {
struct ksock_lnet_msg lnetmsg; /* lnet message, it's empty if
* it's NOOP
*/
} WIRE_ATTR ksm_u;
} WIRE_ATTR;
#define KSOCK_MSG_NOOP 0xC0 /* ksm_u empty */
#define KSOCK_MSG_LNET 0xC1 /* lnet msg */
/*
* We need to know this number to parse hello msg from ksocklnd in
* other LND (usocklnd, for example)
*/
#define KSOCK_PROTO_V2 2
#define KSOCK_PROTO_V3 3
#endif
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