X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=blobdiff_plain;f=lnet%2Finclude%2Flnet%2Fsocklnd.h;h=127134433fc80009fa03fbf922d806eac86b8d9e;hp=27e6f8e07f58cb9345296fb9949e0805bcf574fa;hb=c6aab2ca77831852db22b7dc39baed4d06405b7e;hpb=c5050e412572b00cbe93d8517d2d1f767bebfa92 diff --git a/lnet/include/lnet/socklnd.h b/lnet/include/lnet/socklnd.h index 27e6f8e..1271344 100644 --- a/lnet/include/lnet/socklnd.h +++ b/lnet/include/lnet/socklnd.h @@ -1,14 +1,102 @@ -/* -*- 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 (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 */ +#ifndef __LNET_LNET_SOCKLND_H__ +#define __LNET_LNET_SOCKLND_H__ + +#include + +#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 + +#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 */ + 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 */ + + /* + * 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_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; + +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 -#define SOCKNAL_CONN_NONE (-1) -#define SOCKNAL_CONN_ANY 0 -#define SOCKNAL_CONN_CONTROL 1 -#define SOCKNAL_CONN_BULK_IN 2 -#define SOCKNAL_CONN_BULK_OUT 3 -#define SOCKNAL_CONN_NTYPES 4 +#endif