-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
+/*
+ * GPL HEADER START
*
- * <lnet/socklnd.h>
+ * 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.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
+ *
+ * lnet/include/lnet/socklnd.h
*
* #defines shared between socknal implementation and utilities
*/
#define __LNET_LNET_SOCKLND_H__
#include <lnet/types.h>
-#include <lnet/lib-types.h>
#define SOCKLND_CONN_NONE (-1)
-#define SOCKLND_CONN_ANY 0
-#define SOCKLND_CONN_CONTROL 1
-#define SOCKLND_CONN_BULK_IN 2
-#define SOCKLND_CONN_BULK_OUT 3
-#define SOCKLND_CONN_NTYPES 4
-
-typedef struct {
- __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 ksock_hello_msg_t;
-
-typedef struct {
- lnet_hdr_t ksnm_hdr; /* lnet hdr */
- char ksnm_payload[0];/* lnet payload */
-} WIRE_ATTR ksock_lnet_msg_t;
-
-typedef struct {
- __u32 ksm_type; /* type of socklnd message */
- __u32 ksm_csum; /* checksum if != 0 */
- __u64 ksm_zc_req_cookie; /* ack required if != 0 */
- __u64 ksm_zc_ack_cookie; /* ack if != 0 */
- union {
- ksock_lnet_msg_t lnetmsg; /* lnet message, it's empty if it's NOOP */
- } WIRE_ATTR ksm_u;
-} WIRE_ATTR ksock_msg_t;
-
-#define KSOCK_MSG_NOOP 0xc0 /* ksm_u empty */
-#define KSOCK_MSG_LNET 0xc1 /* lnet msg */
+#define SOCKLND_CONN_ANY 0
+#define SOCKLND_CONN_CONTROL 1
+#define SOCKLND_CONN_BULK_IN 2
+#define SOCKLND_CONN_BULK_OUT 3
+#define SOCKLND_CONN_NTYPES 4
+
+#define SOCKLND_CONN_ACK SOCKLND_CONN_BULK_IN
+
+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 {
+ lnet_hdr_t 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 struct ksock_lnet_msg
+ */
+} 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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