+/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
+ * vim:expandtab:shiftwidth=8:tabstop=8:
+ *
+ * Copyright (C) 2001 Cluster File Systems, Inc.
+ *
+ * This code is issued under the GNU General Public License.
+ * See the file COPYING in this distribution
+ */
+
#ifndef __OBD_H
#define __OBD_H
+#include <linux/fs.h>
+#include <linux/list.h>
+#include <linux/smp_lock.h>
+#include <linux/lustre_idl.h>
struct obd_conn_info {
unsigned int conn_id; /* handle */
int typ_refcnt;
};
-#define OBD_MAGIC 0xffff0000
-#define OBD_MAGIC_MASK 0xffff0000
+struct obd_run_ctxt {
+ struct vfsmount *pwdmnt;
+ struct dentry *pwd;
+ mm_segment_t fs;
+};
+
+struct obd_conn {
+ struct obd_device *oc_dev;
+ uint32_t oc_id;
+};
+
+struct obd_devicename {
+ uint32_t len;
+ char *name;
+ struct dentry *dentry; /* file system obd device names */
+ __u8 _uuid[16]; /* uuid obd device names */
+};
+
+
+/* Individual type definitions */
+
+struct ext2_obd {
+ struct super_block *e2_sb;
+ struct vfsmount *e2_vfsmnt;
+};
+
+struct filter_obd {
+ char *fo_fstype;
+ struct super_block *fo_sb;
+ struct vfsmount *fo_vfsmnt;
+ struct obd_run_ctxt fo_ctxt;
+ spinlock_t fo_lock;
+ __u64 fo_lastino;
+ struct file_operations *fo_fop;
+ struct inode_operations *fo_iop;
+ struct address_space_operations *fo_aops;
+};
+struct mds_obd {
+ struct ptlrpc_service *mds_service;
+
+ char *mds_fstype;
+ struct super_block *mds_sb;
+ struct vfsmount *mds_vfsmnt;
+ struct obd_run_ctxt mds_ctxt;
+ struct file_operations *mds_fop;
+ struct inode_operations *mds_iop;
+ struct address_space_operations *mds_aops;
+ struct mds_fs_operations *mds_fsops;
+};
+struct ldlm_obd {
+ struct ptlrpc_service *ldlm_service;
+
+ struct list_head ldlm_namespaces;
+ spinlock_t ldlm_lock;
+};
+
+struct echo_obd {
+ char *eo_fstype;
+ struct super_block *eo_sb;
+ struct vfsmount *eo_vfsmnt;
+ struct obd_run_ctxt eo_ctxt;
+ spinlock_t eo_lock;
+ __u64 eo_lastino;
+ struct file_operations *eo_fop;
+ struct inode_operations *eo_iop;
+ struct address_space_operations *eo_aops;
+};
+
+struct trace_obd {
+ struct obdtrace_opstats *stats;
+};
+
+#if 0
+struct snap_obd {
+ unsigned int snap_index; /* which snapshot index are we accessing */
+ int snap_tableno;
+};
+
+struct raid1_obd {
+ unsigned int raid1_count; /* how many replicas */
+ /* devices to replicate on */
+ struct obd_device *raid1_devlist[MAX_RAID1];
+ /* connections we make */
+ struct obd_conn_info raid1_connections[MAX_RAID1];
+ struct list_head raid1_clients; /* clients we have */
+};
+#endif
+
+struct ost_obd {
+ struct ptlrpc_service *ost_service;
+
+ struct obd_device *ost_tgt;
+ struct obd_conn ost_conn;
+};
+
+struct osc_obd {
+ struct obd_device *osc_tgt;
+ struct ptlrpc_client *osc_client;
+};
+
+/* corresponds to one of the obd's */
+#define MAX_MULTI 16
+struct obd_device {
+ struct obd_type *obd_type;
+ int obd_minor;
+ int obd_flags;
+ int obd_refcnt;
+ struct obd_devicename obd_fsname;
+ struct proc_dir_entry *obd_proc_entry;
+ int obd_multi_count;
+ struct obd_conn obd_multi_conn[MAX_MULTI];
+ unsigned int obd_gen_last_id;
+ unsigned long obd_gen_prealloc_quota;
+ struct list_head obd_gen_clients;
+ struct list_head obd_req_list;
+ wait_queue_head_t obd_req_waitq;
+ union {
+ struct ext2_obd ext2;
+ struct filter_obd filter;
+ struct mds_obd mds;
+ struct ost_obd ost;
+ struct osc_obd osc;
+ struct ldlm_obd ldlm;
+ struct echo_obd echo;
+ struct trace_obd trace;
+#if 0
+ struct raid1_obd raid1;
+ struct snap_obd snap;
+#endif
+ } u;
+};
+
+struct obd_ops {
+ int (*o_iocontrol)(int cmd, struct obd_conn *, int len, void *karg,
+ void *uarg);
+ int (*o_get_info)(struct obd_conn *, obd_count keylen, void *key,
+ obd_count *vallen, void **val);
+ int (*o_set_info)(struct obd_conn *, obd_count keylen, void *key,
+ obd_count vallen, void *val);
+ int (*o_attach)(struct obd_device *dev, obd_count len, void *data);
+ int (*o_detach)(struct obd_device *dev);
+ int (*o_setup) (struct obd_device *dev, obd_count len, void *data);
+ int (*o_cleanup)(struct obd_device *dev);
+ int (*o_connect)(struct obd_conn *conn);
+ int (*o_disconnect)(struct obd_conn *conn);
+ int (*o_statfs)(struct obd_conn *conn, struct statfs *statfs);
+ int (*o_preallocate)(struct obd_conn *, obd_count *req, obd_id *ids);
+ int (*o_create)(struct obd_conn *conn, struct obdo *oa);
+ int (*o_destroy)(struct obd_conn *conn, struct obdo *oa);
+ int (*o_setattr)(struct obd_conn *conn, struct obdo *oa);
+ int (*o_getattr)(struct obd_conn *conn, struct obdo *oa);
+ int (*o_open)(struct obd_conn *conn, struct obdo *oa);
+ int (*o_close)(struct obd_conn *conn, struct obdo *oa);
+ int (*o_read)(struct obd_conn *conn, struct obdo *oa, char *buf,
+ obd_size *count, obd_off offset);
+ int (*o_write)(struct obd_conn *conn, struct obdo *oa, char *buf,
+ obd_size *count, obd_off offset);
+ int (*o_brw)(int rw, struct obd_conn *conn, obd_count num_oa,
+ struct obdo **oa, obd_count *oa_bufs, struct page **buf,
+ obd_size *count, obd_off *offset, obd_flag *flags);
+ int (*o_punch)(struct obd_conn *conn, struct obdo *tgt, obd_size count,
+ obd_off offset);
+ int (*o_sync)(struct obd_conn *conn, struct obdo *tgt, obd_size count,
+ obd_off offset);
+ int (*o_migrate)(struct obd_conn *conn, struct obdo *dst,
+ struct obdo *src, obd_size count, obd_off offset);
+ int (*o_copy)(struct obd_conn *dstconn, struct obdo *dst,
+ struct obd_conn *srconn, struct obdo *src,
+ obd_size count, obd_off offset);
+ int (*o_iterate)(struct obd_conn *conn, int (*)(obd_id, obd_gr, void *),
+ obd_id *startid, obd_gr group, void *data);
+ int (*o_preprw)(int cmd, struct obd_conn *conn,
+ int objcount, struct obd_ioobj *obj,
+ int niocount, struct niobuf *nb,
+ struct niobuf *res);
+ int (*o_commitrw)(int cmd, struct obd_conn *conn,
+ int objcount, struct obd_ioobj *obj,
+ int niocount, struct niobuf *res);
+};
#endif
git://git.whamcloud.com / fs / lustre-release.git / blobdiff