svm: refactor fifo

[vpp.git] / src / plugins / hs_apps / proxy.c

diff --git a/src/plugins/hs_apps/proxy.c b/src/plugins/hs_apps/proxy.c
index ad5b292..d0e3bc4 100644 (file)
--- a/src/plugins/hs_apps/proxy.c
+++ b/src/plugins/hs_apps/proxy.c
@@ -271,8 +271,16 @@ proxy_tx_callback (session_t * proxy_s)
   session_handle_t handle;
   proxy_session_t *ps;
   session_t *ao_s;
+  u32 min_free;
   uword *p;
 
+  min_free = clib_min (svm_fifo_size (proxy_s->tx_fifo) >> 3, 128 << 10);
+  if (svm_fifo_max_enqueue (proxy_s->tx_fifo) < min_free)
+    {
+      svm_fifo_add_want_deq_ntf (proxy_s->tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
+      return 0;
+    }
+
   clib_spinlock_lock_if_init (&pm->sessions_lock);
 
   handle = session_handle (proxy_s);
@@ -348,6 +356,9 @@ active_open_connected_callback (u32 app_index, u32 opaque,
   s->tx_fifo->refcnt++;
   s->rx_fifo->refcnt++;
 
+  svm_fifo_init_ooo_lookup (s->tx_fifo, 1 /* deq ooo */ );
+  svm_fifo_init_ooo_lookup (s->rx_fifo, 0 /* enq ooo */ );
+
   hash_set (pm->proxy_session_by_active_open_handle,
            ps->vpp_active_open_handle, opaque);
 
@@ -414,8 +425,16 @@ active_open_tx_callback (session_t * ao_s)
   session_handle_t handle;
   proxy_session_t *ps;
   session_t *proxy_s;
+  u32 min_free;
   uword *p;
 
+  min_free = clib_min (svm_fifo_size (ao_s->tx_fifo) >> 3, 128 << 10);
+  if (svm_fifo_max_enqueue (ao_s->tx_fifo) < min_free)
+    {
+      svm_fifo_add_want_deq_ntf (ao_s->tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
+      return 0;
+    }
+
   clib_spinlock_lock_if_init (&pm->sessions_lock);
 
   handle = session_handle (ao_s);