X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;ds=sidebyside;f=src%2Fsvm%2Fsvm_fifo.h;h=e049d3e314719f2df52788b50e745e57da154fa3;hb=refs%2Fchanges%2F49%2F16049%2F3;hp=ec32fd5f40d65c530dd0af1017230c4317f9f349;hpb=2cba8533cc4444c4615903add9a8f20c7c87079c;p=vpp.git

diff --git a/src/svm/svm_fifo.h b/src/svm/svm_fifo.h
index ec32fd5f40d..e049d3e3147 100644
--- a/src/svm/svm_fifo.h
+++ b/src/svm/svm_fifo.h
@@ -36,8 +36,9 @@ typedef struct
 format_function_t format_ooo_segment;
 format_function_t format_ooo_list;
 
-#define SVM_FIFO_TRACE (0)
-#define OOO_SEGMENT_INVALID_INDEX ((u32)~0)
+#define SVM_FIFO_TRACE 			(0)
+#define OOO_SEGMENT_INVALID_INDEX 	((u32)~0)
+#define SVM_FIFO_INVALID_SESSION_INDEX 	((u32)~0)
 
 typedef struct
 {
@@ -60,8 +61,10 @@ typedef struct _svm_fifo
   u8 master_thread_index;
   u8 client_thread_index;
   u32 segment_manager;
+  u32 ct_session_index;		/**< Local session index for vpp */
     CLIB_CACHE_LINE_ALIGN_MARK (end_shared);
   u32 head;
+  volatile u32 want_tx_evt;	/**< producer wants nudge */
     CLIB_CACHE_LINE_ALIGN_MARK (end_consumer);
 
   /* producer */
@@ -166,7 +169,19 @@ svm_fifo_set_event (svm_fifo_t * f)
 always_inline void
 svm_fifo_unset_event (svm_fifo_t * f)
 {
-  __sync_lock_release (&f->has_event);
+  clib_atomic_release (&f->has_event);
+}
+
+static inline void
+svm_fifo_set_want_tx_evt (svm_fifo_t * f, u8 want_evt)
+{
+  f->want_tx_evt = want_evt;
+}
+
+static inline u8
+svm_fifo_want_tx_evt (svm_fifo_t * f)
+{
+  return f->want_tx_evt;
 }
 
 svm_fifo_t *svm_fifo_create (u32 data_size_in_bytes);