+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;
+ struct ptlrpc_client *osc_ldlm_client;
+ struct ptlrpc_connection *osc_conn;
+};
+
+struct lov_obd {
+ int lov_count;
+ struct obd_conn *lov_targets;
+};
+
+/* corresponds to one of the obd's */
+#define MAX_MULTI 16
+struct obd_device {
+ struct obd_type *obd_type;
+ char *obd_name;
+ __u8 obd_uuid[37];
+
+ 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;
+ struct ldlm_namespace *obd_namespace;
+ 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 recovd_obd recovd;
+ struct trace_obd trace;
+ struct lov_obd lov;
+#if 0
+ struct raid1_obd raid1;
+ struct snap_obd snap;
+#endif
+ } u;
+};
+
+struct obd_ops {
+ int (*o_iocontrol)(long 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_remote *remote,
+ struct niobuf_local *local);
+ int (*o_commitrw)(int cmd, struct obd_conn *conn,
+ int objcount, struct obd_ioobj *obj,
+ int niocount, struct niobuf_local *local);
+ int (*o_enqueue)(struct obd_conn *conn, struct ldlm_namespace *ns,
+ struct ldlm_handle *parent_lock, __u64 *res_id,
+ __u32 type, struct ldlm_extent *, __u32 mode,
+ int *flags, void *data, int datalen,
+ struct ldlm_handle *lockh);
+ int (*o_cancel)(struct obd_conn *, __u32 mode, struct ldlm_handle *);
+};