Landing b_hd_newconfig on HEAD

[fs/lustre-release.git] / lnet / include / lnet / ptllnd_wire.h

diff --git a/lnet/include/lnet/ptllnd_wire.h b/lnet/include/lnet/ptllnd_wire.h
new file mode 100644 (file)
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+++ b/lnet/include/lnet/ptllnd_wire.h
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+/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
+ * vim:expandtab:shiftwidth=8:tabstop=8:
+ *
+ * Copyright (C) 2005 Cluster File Systems, Inc. All rights reserved.
+ *   Author: PJ Kirner <pjkirner@clusterfs.com>
+ *
+ *   This file is part of the Lustre file system, http://www.lustre.org
+ *   Lustre is a trademark of Cluster File Systems, Inc.
+ *
+ *   This file is confidential source code owned by Cluster File Systems.
+ *   No viewing, modification, compilation, redistribution, or any other
+ *   form of use is permitted except through a signed license agreement.
+ *
+ *   If you have not signed such an agreement, then you have no rights to
+ *   this file.  Please destroy it immediately and contact CFS.
+ *
+ */
+ 
+/************************************************************************
+ * Tunable defaults that {u,k}lnds/ptllnd should have in common.
+ */
+
+#define PTLLND_PORTAL           9          /* The same portal PTLPRC used when talking to cray portals */
+#define PTLLND_PID              9          /* The Portals PID */
+#define PTLLND_PEERCREDITS      8          /* concurrent sends to 1 peer */
+#define PTLLND_MAX_MSG_SIZE     512        /* Maximum message size */
+
+
+/************************************************************************
+ * Portals LNS Wire message format.
+ * These are sent in sender's byte order (i.e. receiver flips).
+ */
+
+#define PTL_RESERVED_MATCHBITS  0x100  /* below this value is reserved
+                                         * above is for bulk data transfer */
+#define LNET_MSG_MATCHBITS       0      /* the value for the message channel */
+
+typedef struct
+{
+        lnet_hdr_t        kptlim_hdr;             /* portals header */
+        char              kptlim_payload[0];      /* piggy-backed payload */
+} WIRE_ATTR kptl_immediate_msg_t;
+
+typedef struct
+{
+        lnet_hdr_t        kptlrm_hdr;             /* portals header */
+        __u64             kptlrm_matchbits;       /* matchbits */
+} WIRE_ATTR kptl_rdma_msg_t;
+
+typedef struct
+{
+        __u64             kptlhm_matchbits;       /* matchbits */
+        __u32             kptlhm_max_msg_size;    /* max message size */
+} WIRE_ATTR kptl_hello_msg_t;
+
+typedef struct
+{
+        /* First 2 fields fixed FOR ALL TIME */
+        __u32           ptlm_magic;     /* I'm a Portals LND message */
+        __u16           ptlm_version;   /* this is my version number */
+        __u8            ptlm_type;      /* the message type */
+        __u8            ptlm_credits;   /* returned credits */
+        __u32           ptlm_nob;       /* # bytes in whole message */
+        __u32           ptlm_cksum;     /* checksum (0 == no checksum) */
+        __u64           ptlm_srcnid;    /* sender's NID */
+        __u64           ptlm_srcstamp;  /* sender's incarnation */
+        __u64           ptlm_dstnid;    /* destination's NID */
+        __u64           ptlm_dststamp;  /* destination's incarnation */
+        __u32           ptlm_srcpid;    /* sender's PID */
+        __u32           ptlm_dstpid;    /* destination's PID */
+
+         union {
+                kptl_immediate_msg_t    immediate;
+                kptl_rdma_msg_t         rdma;
+                kptl_hello_msg_t        hello;
+        } WIRE_ATTR ptlm_u;
+
+} kptl_msg_t;
+
+#define PTLLND_MSG_MAGIC                LNET_PROTO_PTL_MAGIC
+#define PTLLND_MSG_VERSION              0x04
+
+#define PTLLND_RDMA_OK                  0x00
+#define PTLLND_RDMA_FAIL                0x01
+
+#define PTLLND_MSG_TYPE_INVALID         0x00
+#define PTLLND_MSG_TYPE_PUT             0x01
+#define PTLLND_MSG_TYPE_GET             0x02
+#define PTLLND_MSG_TYPE_IMMEDIATE       0x03    /* No bulk data xfer*/
+#define PTLLND_MSG_TYPE_NOOP            0x04
+#define PTLLND_MSG_TYPE_HELLO           0x05
+#define PTLLND_MSG_TYPE_NAK             0x06
+