1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
4 * Copyright (C) 2005 Cluster File Systems, Inc. All rights reserved.
5 * Author: PJ Kirner <pjkirner@clusterfs.com>
7 * This file is part of the Lustre file system, http://www.lustre.org
8 * Lustre is a trademark of Cluster File Systems, Inc.
10 * This file is confidential source code owned by Cluster File Systems.
11 * No viewing, modification, compilation, redistribution, or any other
12 * form of use is permitted except through a signed license agreement.
14 * If you have not signed such an agreement, then you have no rights to
15 * this file. Please destroy it immediately and contact CFS.
19 /************************************************************************
20 * Tunable defaults that {u,k}lnds/ptllnd should have in common.
23 #define PTLLND_PORTAL 9 /* The same portal PTLPRC used when talking to cray portals */
24 #define PTLLND_PID 9 /* The Portals PID */
25 #define PTLLND_PEERCREDITS 8 /* concurrent sends to 1 peer */
26 #define PTLLND_MAX_MSG_SIZE 512 /* Maximum message size */
29 /************************************************************************
30 * Portals LNS Wire message format.
31 * These are sent in sender's byte order (i.e. receiver flips).
34 #define PTL_RESERVED_MATCHBITS 0x100 /* below this value is reserved
35 * above is for bulk data transfer */
36 #define LNET_MSG_MATCHBITS 0 /* the value for the message channel */
40 lnet_hdr_t kptlim_hdr; /* portals header */
41 char kptlim_payload[0]; /* piggy-backed payload */
42 } WIRE_ATTR kptl_immediate_msg_t;
46 lnet_hdr_t kptlrm_hdr; /* portals header */
47 __u64 kptlrm_matchbits; /* matchbits */
48 } WIRE_ATTR kptl_rdma_msg_t;
52 __u64 kptlhm_matchbits; /* matchbits */
53 __u32 kptlhm_max_msg_size; /* max message size */
54 } WIRE_ATTR kptl_hello_msg_t;
58 /* First 2 fields fixed FOR ALL TIME */
59 __u32 ptlm_magic; /* I'm a Portals LND message */
60 __u16 ptlm_version; /* this is my version number */
61 __u8 ptlm_type; /* the message type */
62 __u8 ptlm_credits; /* returned credits */
63 __u32 ptlm_nob; /* # bytes in whole message */
64 __u32 ptlm_cksum; /* checksum (0 == no checksum) */
65 __u64 ptlm_srcnid; /* sender's NID */
66 __u64 ptlm_srcstamp; /* sender's incarnation */
67 __u64 ptlm_dstnid; /* destination's NID */
68 __u64 ptlm_dststamp; /* destination's incarnation */
69 __u32 ptlm_srcpid; /* sender's PID */
70 __u32 ptlm_dstpid; /* destination's PID */
73 kptl_immediate_msg_t immediate;
75 kptl_hello_msg_t hello;
80 #define PTLLND_MSG_MAGIC LNET_PROTO_PTL_MAGIC
81 #define PTLLND_MSG_VERSION 0x04
83 #define PTLLND_RDMA_OK 0x00
84 #define PTLLND_RDMA_FAIL 0x01
86 #define PTLLND_MSG_TYPE_INVALID 0x00
87 #define PTLLND_MSG_TYPE_PUT 0x01
88 #define PTLLND_MSG_TYPE_GET 0x02
89 #define PTLLND_MSG_TYPE_IMMEDIATE 0x03 /* No bulk data xfer*/
90 #define PTLLND_MSG_TYPE_NOOP 0x04
91 #define PTLLND_MSG_TYPE_HELLO 0x05
92 #define PTLLND_MSG_TYPE_NAK 0x06