+struct hsm_state_set_ioc {
+ struct lu_fid hssi_fid;
+ __u64 hssi_setmask;
+ __u64 hssi_clearmask;
+};
+
+/***** HSM user requests ******/
+/* User-generated (lfs/ioctl) request types */
+enum hsm_user_action {
+ HUA_NONE = 1, /* no action (noop) */
+ HUA_ARCHIVE = 10, /* copy to hsm */
+ HUA_RESTORE = 11, /* prestage */
+ HUA_RELEASE = 12, /* drop ost objects */
+ HUA_REMOVE = 13, /* remove from archive */
+ HUA_CANCEL = 14 /* cancel a request */
+};
+
+static inline char *hsm_user_action2name(enum hsm_user_action a)
+{
+ switch (a) {
+ case HUA_NONE: return "NOOP";
+ case HUA_ARCHIVE: return "ARCHIVE";
+ case HUA_RESTORE: return "RESTORE";
+ case HUA_RELEASE: return "RELEASE";
+ case HUA_REMOVE: return "REMOVE";
+ case HUA_CANCEL: return "CANCEL";
+ default: return "UNKNOWN";
+ }
+}
+
+struct hsm_user_item {
+ lustre_fid hui_fid;
+ struct hsm_extent hui_extent;
+} __attribute__((packed));
+
+struct hsm_user_request {
+ __u32 hur_action; /* enum hsm_user_action */
+ __u32 hur_archive_num; /* archive number, used only with HUA_ARCHIVE */
+ __u32 hur_itemcount;
+ __u32 hur_data_len;
+ struct hsm_user_item hur_user_item[0];
+ /* extra data blob at end of struct (after all
+ * hur_user_items), only use helpers to access it
+ */
+} __attribute__((packed));
+
+/** Return pointer to data field in a hsm user request */
+static inline void *hur_data(struct hsm_user_request *hur)
+{
+ return &(hur->hur_user_item[hur->hur_itemcount]);
+}
+
+/** Compute the current length of the provided hsm_user_request. */
+static inline int hur_len(struct hsm_user_request *hur)
+{
+ int data_offset;
+
+ data_offset = hur_data(hur) - (void *)hur;
+ return (data_offset + hur->hur_data_len);
+}
+
+/****** HSM RPCs to copytool *****/
+/* Message types the copytool may receive */
+enum hsm_message_type {
+ HMT_ACTION_LIST = 100, /* message is a hsm_action_list */
+};
+
+/* Actions the copytool may be instructed to take for a given action_item */
+enum hsm_copytool_action {
+ HSMA_NONE = 10, /* no action */