svm: minimal initial fifo

[vpp.git] / src / vnet / session / segment_manager.h

diff --git a/src/vnet/session/segment_manager.h b/src/vnet/session/segment_manager.h
index 52f89ee..cd02d54 100644 (file)
--- a/src/vnet/session/segment_manager.h
+++ b/src/vnet/session/segment_manager.h
@@ -19,6 +19,7 @@
 #include <vppinfra/lock.h>
 #include <vppinfra/valloc.h>
 #include <svm/fifo_segment.h>
+#include <vnet/session/session_types.h>
 
 typedef struct _segment_manager_props
 {
@@ -34,6 +35,10 @@ typedef struct _segment_manager_props
   u8 n_slices;                         /**< number of fs slices/threads */
   ssvm_segment_type_t segment_type;    /**< seg type: if set to SSVM_N_TYPES,
                                             private segments are used */
+  u32 max_fifo_size;                   /**< max fifo size */
+  u8 high_watermark;                   /**< memory usage high watermark % */
+  u8 low_watermark;                    /**< memory usage low watermark % */
+  u8 pct_first_alloc;                  /**< pct of fifo size to alloc */
 } segment_manager_props_t;
 
 typedef struct _segment_manager
@@ -58,6 +63,10 @@ typedef struct _segment_manager
    * App event queue allocated in first segment
    */
   svm_msg_q_t *event_queue;
+
+  u32 max_fifo_size;
+  u8 high_watermark;
+  u8 low_watermark;
 } segment_manager_t;
 
 typedef struct segment_manager_main_init_args_
@@ -69,8 +78,7 @@ typedef struct segment_manager_main_init_args_
 #define SEGMENT_MANAGER_INVALID_APP_INDEX ((u32) ~0)
 
 segment_manager_t *segment_manager_alloc (void);
-int segment_manager_init (segment_manager_t * sm, uword first_seg_size,
-                         u32 prealloc_fifo_pairs);
+int segment_manager_init (segment_manager_t * sm);
 
 /**
  * Cleanup segment manager
@@ -118,6 +126,9 @@ int segment_manager_try_alloc_fifos (fifo_segment_t * fs,
 void segment_manager_dealloc_fifos (svm_fifo_t * rx_fifo,
                                    svm_fifo_t * tx_fifo);
 
+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,