-/* -*- 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.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 (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_BULK_OUT 3
#define SOCKLND_CONN_NTYPES 4
+#define SOCKLND_CONN_ACK SOCKLND_CONN_BULK_IN
+
typedef struct {
__u32 kshm_magic; /* magic number of socklnd message */
__u32 kshm_version; /* version of socklnd message */
typedef struct {
lnet_hdr_t ksnm_hdr; /* lnet hdr */
- char ksnm_payload[0];/* lnet payload */
+
+ /*
+ * 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 ksock_lnet_msg_t
+ */
} 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 */
+ __u64 ksm_zc_cookies[2]; /* Zero-Copy request/ACK cookie */
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 */
+static inline void
+socklnd_init_msg(ksock_msg_t *msg, int type)
+{
+ msg->ksm_csum = 0;
+ msg->ksm_type = type;
+ msg->ksm_zc_cookies[0] = msg->ksm_zc_cookies[1] = 0;
+}
+
+#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