1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
4 * Copyright (C) 2001 Cluster File Systems, Inc. <braam@clusterfs.com>
6 * This file is part of Lustre, http://www.lustre.org.
8 * Lustre is free software; you can redistribute it and/or
9 * modify it under the terms of version 2 of the GNU General Public
10 * License as published by the Free Software Foundation.
12 * Lustre is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with Lustre; if not, write to the Free Software
19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 * Data structures for object storage targets and client: OST & OSC's
23 * See also lustre_idl.h for wire formats of requests.
30 #include <linux/obd_support.h>
33 #define LUSTRE_OST_NAME "ost"
36 struct obd_device *ost_tgt;
37 struct obd_conn ost_conn;
38 struct task_struct *ost_thread;
39 wait_queue_head_t ost_waitq;
40 wait_queue_head_t ost_done_waitq;
43 struct list_head ost_reqs;
47 struct obd_device *ost_tgt;
51 struct list_head rq_list;
52 struct ost_obd *rq_obd;
57 struct ost_req_hdr *rq_reqhdr;
58 struct ost_req *rq_req;
62 struct ost_rep_hdr *rq_rephdr;
63 struct ost_rep *rq_rep;
65 void *rq_reply_handle;
66 wait_queue_head_t rq_wait_for_rep;
91 int ost_pack_req(char *buf1, int buflen1, char *buf2, int buflen2, struct ost_req_hdr **hdr, struct ost_req **req, int *len, char **buf);
92 int ost_unpack_req(char *buf, int len, struct ost_req_hdr **hdr, struct ost_req **req);
93 int ost_pack_rep(void *buf1, __u32 buflen1, void *buf2, __u32 buflen2, struct ost_rep_hdr **hdr, struct ost_rep **rep, int *len, char **buf);
94 int ost_unpack_rep(char *buf, int len, struct ost_rep_hdr **hdr, struct ost_rep **rep);