103 lines
3.0 KiB
C
103 lines
3.0 KiB
C
/*
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* GPL HEADER START
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*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 only,
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License version 2 for more details (a copy is included
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* in the LICENSE file that accompanied this code).
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*
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* You should have received a copy of the GNU General Public License
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* version 2 along with this program; If not, see
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* http://www.gnu.org/licenses/gpl-2.0.html
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*
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* GPL HEADER END
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*/
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/*
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* Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
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* Use is subject to license terms.
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*
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* Copyright (c) 2012 - 2015, Intel Corporation.
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*/
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/*
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* This file is part of Lustre, http://www.lustre.org/
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* Lustre is a trademark of Seagate, Inc.
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*
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* lnet/include/lnet/socklnd.h
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*/
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#ifndef __LNET_LNET_SOCKLND_H__
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#define __LNET_LNET_SOCKLND_H__
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#include "types.h"
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#define SOCKLND_CONN_NONE (-1)
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#define SOCKLND_CONN_ANY 0
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#define SOCKLND_CONN_CONTROL 1
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#define SOCKLND_CONN_BULK_IN 2
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#define SOCKLND_CONN_BULK_OUT 3
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#define SOCKLND_CONN_NTYPES 4
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#define SOCKLND_CONN_ACK SOCKLND_CONN_BULK_IN
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typedef struct {
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__u32 kshm_magic; /* magic number of socklnd message */
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__u32 kshm_version; /* version of socklnd message */
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lnet_nid_t kshm_src_nid; /* sender's nid */
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lnet_nid_t kshm_dst_nid; /* destination nid */
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lnet_pid_t kshm_src_pid; /* sender's pid */
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lnet_pid_t kshm_dst_pid; /* destination pid */
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__u64 kshm_src_incarnation; /* sender's incarnation */
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__u64 kshm_dst_incarnation; /* destination's incarnation */
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__u32 kshm_ctype; /* connection type */
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__u32 kshm_nips; /* # IP addrs */
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__u32 kshm_ips[0]; /* IP addrs */
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} WIRE_ATTR ksock_hello_msg_t;
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typedef struct {
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lnet_hdr_t ksnm_hdr; /* lnet hdr */
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/*
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* ksnm_payload is removed because of winnt compiler's limitation:
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* zero-sized array can only be placed at the tail of [nested]
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* structure definitions. lnet payload will be stored just after
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* the body of structure ksock_lnet_msg_t
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*/
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} WIRE_ATTR ksock_lnet_msg_t;
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typedef struct {
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__u32 ksm_type; /* type of socklnd message */
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__u32 ksm_csum; /* checksum if != 0 */
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__u64 ksm_zc_cookies[2]; /* Zero-Copy request/ACK cookie */
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union {
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ksock_lnet_msg_t lnetmsg;/* lnet message, it's empty if
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* it's NOOP */
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} WIRE_ATTR ksm_u;
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} WIRE_ATTR ksock_msg_t;
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static inline void
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socklnd_init_msg(ksock_msg_t *msg, int type)
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{
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msg->ksm_csum = 0;
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msg->ksm_type = type;
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msg->ksm_zc_cookies[0] = 0;
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msg->ksm_zc_cookies[1] = 0;
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}
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#define KSOCK_MSG_NOOP 0xC0 /* ksm_u empty */
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#define KSOCK_MSG_LNET 0xC1 /* lnet msg */
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/*
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* We need to know this number to parse hello msg from ksocklnd in
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* other LND (usocklnd, for example)
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*/
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#define KSOCK_PROTO_V2 2
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#define KSOCK_PROTO_V3 3
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#endif
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