+/**
+ * Cleanup segment manager
+ *
+ * @param sm segment manager to be freed
+ */
+void segment_manager_free (segment_manager_t * sm);
+
+/**
+ * Initiate segment manager cleanup
+ *
+ * @param sm segment manager to be freed
+ */
+void segment_manager_init_free (segment_manager_t * sm);
+segment_manager_t *segment_manager_get (u32 index);
+segment_manager_t *segment_manager_get_if_valid (u32 index);
+u32 segment_manager_index (segment_manager_t * sm);
+
+int segment_manager_add_segment (segment_manager_t * sm, uword segment_size);
+void segment_manager_del_segment (segment_manager_t * sm,
+ fifo_segment_t * fs);
+fifo_segment_t *segment_manager_get_segment (segment_manager_t * sm,
+ u32 segment_index);
+fifo_segment_t *segment_manager_get_segment_w_handle (u64 sh);
+fifo_segment_t *segment_manager_get_segment_w_lock (segment_manager_t * sm,
+ u32 segment_index);
+int segment_manager_add_first_segment (segment_manager_t * sm,
+ u32 segment_size);
+u64 segment_manager_make_segment_handle (u32 segment_manager_index,
+ u32 segment_index);
+u64 segment_manager_segment_handle (segment_manager_t * sm,
+ fifo_segment_t * segment);
+void segment_manager_segment_reader_unlock (segment_manager_t * sm);
+void segment_manager_segment_writer_unlock (segment_manager_t * sm);
+
+int segment_manager_alloc_session_fifos (segment_manager_t * sm,
+ u32 thread_index,
+ svm_fifo_t ** rx_fifo,
+ svm_fifo_t ** tx_fifo);
+int segment_manager_try_alloc_fifos (fifo_segment_t * fs,
+ u32 thread_index,
+ u32 rx_fifo_size, u32 tx_fifo_size,
+ svm_fifo_t ** rx_fifo,
+ svm_fifo_t ** tx_fifo);
+void segment_manager_dealloc_fifos (svm_fifo_t * rx_fifo,
+ svm_fifo_t * tx_fifo);
+void segment_manager_detach_fifo (segment_manager_t * sm, svm_fifo_t * f);
+void segment_manager_attach_fifo (segment_manager_t * sm, svm_fifo_t * f,
+ session_t * s);
+
+void segment_manager_set_watermarks (segment_manager_t * sm,
+ u8 high_watermark, u8 low_watermark);
+
+u8 segment_manager_has_fifos (segment_manager_t * sm);
+
+svm_msg_q_t *segment_manager_alloc_queue (fifo_segment_t * fs,
+ segment_manager_props_t * props);
+void segment_manager_dealloc_queue (segment_manager_t * sm, svm_queue_t * q);
+svm_msg_q_t *segment_manager_event_queue (segment_manager_t * sm);
+u32 segment_manager_evt_q_expected_size (u32 q_size);
+
+u8 segment_manager_app_detached (segment_manager_t * sm);
+void segment_manager_app_detach (segment_manager_t * sm);
+
+/**
+ * Cleanup segment manager sessions
+ *
+ * Initiates disconnects for all sessions 'owned' by a segment manager by
+ * leveraging the backpointers that fifos keep.
+ *
+ * @param sm segment manager whose sessions are to be disconnected
+ */
+void segment_manager_del_sessions (segment_manager_t * sm);
+void segment_manager_format_sessions (segment_manager_t * sm, int verbose);
+
+void segment_manager_main_init (segment_manager_main_init_args_t * a);
+
+segment_manager_props_t *segment_manager_props_init (segment_manager_props_t *
+ sm);
+
+static inline void
+segment_manager_parse_segment_handle (u64 segment_handle, u32 * sm_index,
+ u32 * segment_index)