-/************************************************************************
+/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
+ * vim:expandtab:shiftwidth=8:tabstop=8:
+ *
+ * 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.sun.com/software/products/lustre/docs/GPLv2.pdf
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ * GPL HEADER END
+ */
+/*
+ * Copyright 2008 Sun Microsystems, Inc. All rights reserved
+ * Use is subject to license terms.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
+ *
+ * lnet/klnds/viblnd/viblnd_wire.h
+ *
* IB Wire message format.
* These are sent in sender's byte order (i.e. receiver flips).
*/
__u32 ibcp_queue_depth;
__u32 ibcp_max_msg_size;
__u32 ibcp_max_frags;
-} kib_connparams_t __attribute__((packed));
+} WIRE_ATTR kib_connparams_t;
typedef struct
{
- ptl_hdr_t ibim_hdr; /* portals header */
+ lnet_hdr_t ibim_hdr; /* portals header */
char ibim_payload[0]; /* piggy-backed payload */
-} kib_immediate_msg_t __attribute__((packed));
+} WIRE_ATTR kib_immediate_msg_t;
+
+#ifndef IBNAL_USE_FMR
+# error "IBNAL_USE_FMR must be defined 1 or 0 before including this file"
+#endif
+#if IBNAL_USE_FMR
+typedef struct
+{
+ __u64 rd_addr; /* IO VMA address */
+ __u32 rd_nob; /* # of bytes */
+ __u32 rd_key; /* remote key */
+} WIRE_ATTR kib_rdma_desc_t;
+#else
/* YEUCH! the __u64 address is split into 2 __u32 fields to ensure proper
* packing. Otherwise we can't fit enough frags into an IBNAL message (<=
* smallest page size on any arch). */
__u32 rf_nob; /* # of bytes */
__u32 rf_addr_lo; /* lo 4 bytes of vaddr */
__u32 rf_addr_hi; /* hi 4 bytes of vaddr */
-} kib_rdma_frag_t __attribute__((packed));
+} WIRE_ATTR kib_rdma_frag_t;
typedef struct
{
__u32 rd_key; /* local/remote key */
__u32 rd_nfrag; /* # fragments */
kib_rdma_frag_t rd_frags[0]; /* buffer frags */
-} kib_rdma_desc_t __attribute__((packed));
-
-/* CAVEAT EMPTOR! We don't actually put ibprm_rd on the wire; it's just there
- * to remember the source buffers while we wait for the PUT_ACK */
+} WIRE_ATTR kib_rdma_desc_t;
+#endif
typedef struct
{
- ptl_hdr_t ibprm_hdr; /* portals header */
+ lnet_hdr_t ibprm_hdr; /* portals header */
__u64 ibprm_cookie; /* opaque completion cookie */
-} kib_putreq_msg_t __attribute__((packed));
+} WIRE_ATTR kib_putreq_msg_t;
typedef struct
{
__u64 ibpam_src_cookie; /* reflected completion cookie */
__u64 ibpam_dst_cookie; /* opaque completion cookie */
kib_rdma_desc_t ibpam_rd; /* sender's sink buffer */
-} kib_putack_msg_t __attribute__((packed));
+} WIRE_ATTR kib_putack_msg_t;
typedef struct
{
- ptl_hdr_t ibgm_hdr; /* portals header */
+ lnet_hdr_t ibgm_hdr; /* portals header */
__u64 ibgm_cookie; /* opaque completion cookie */
kib_rdma_desc_t ibgm_rd; /* rdma descriptor */
-} kib_get_msg_t __attribute__((packed));
+} WIRE_ATTR kib_get_msg_t;
typedef struct
{
__u64 ibcm_cookie; /* opaque completion cookie */
__s32 ibcm_status; /* < 0 failure: >= 0 length */
- __u32 ibcm_pad; /* pad to 8 byte boundary */
-} kib_completion_msg_t __attribute__((packed));
+} WIRE_ATTR kib_completion_msg_t;
typedef struct
{
kib_putack_msg_t putack;
kib_get_msg_t get;
kib_completion_msg_t completion;
- } ibm_u __attribute__((packed));
-} kib_msg_t __attribute__((packed));
+ } WIRE_ATTR ibm_u;
+} WIRE_ATTR kib_msg_t;
+
+#define IBNAL_MSG_MAGIC LNET_PROTO_VIB_MAGIC /* unique magic */
-#define IBNAL_MSG_MAGIC 0x0be91b91 /* unique magic */
-#define IBNAL_MSG_VERSION 5 /* current protocol version */
+#define IBNAL_MSG_VERSION_RDMAREPLYNOTRSRVD 0x10 /* previous version */
+
+#define IBNAL_MSG_VERSION 0x11 /* current version */
#define IBNAL_MSG_CONNREQ 0xc0 /* connection request */
#define IBNAL_MSG_CONNACK 0xc1 /* connection acknowledge */
#define IBNAL_MSG_PUT_DONE 0xd5 /* completion (src->sink) */
#define IBNAL_MSG_GET_REQ 0xd6 /* getreq (sink->src) */
#define IBNAL_MSG_GET_DONE 0xd7 /* completion (src->sink: all OK) */
+
+/* connection rejection reasons */
+#define IBNAL_REJECT_CONN_RACE 0 /* You lost connection race */
+#define IBNAL_REJECT_NO_RESOURCES 1 /* Out of memory/conns etc */
+#define IBNAL_REJECT_FATAL 2 /* Anything else */
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