vlib: wake up workers if interrupts are posted

[vpp.git] / src / vlib / main.c

diff --git a/src/vlib/main.c b/src/vlib/main.c
index 2c397a2..8d7c6c0 100644 (file)
--- a/src/vlib/main.c
+++ b/src/vlib/main.c
@@ -1766,6 +1766,8 @@ vlib_main_or_worker_loop (vlib_main_t * vm, int is_main)
   /* Pre-allocate interupt runtime indices and lock. */
   vec_alloc (nm->pending_local_interrupts, 32);
   vec_alloc (nm->pending_remote_interrupts, 32);
+  vec_alloc_aligned (nm->pending_remote_interrupts_notify, 1,
+                    CLIB_CACHE_LINE_BYTES);
   clib_spinlock_init (&nm->pending_interrupt_lock);
 
   /* Pre-allocate expired nodes. */
@@ -1857,7 +1859,7 @@ vlib_main_or_worker_loop (vlib_main_t * vm, int is_main)
        cpu_time_now = dispatch_pending_interrupts (vm, nm, cpu_time_now);
 
       /* handle remote interruots */
-      if (_vec_len (nm->pending_remote_interrupts))
+      if (PREDICT_FALSE (_vec_len (nm->pending_remote_interrupts)))
        {
          vlib_node_interrupt_t *in;
 
@@ -1868,6 +1870,7 @@ vlib_main_or_worker_loop (vlib_main_t * vm, int is_main)
          in = nm->pending_local_interrupts;
          nm->pending_local_interrupts = nm->pending_remote_interrupts;
          nm->pending_remote_interrupts = in;
+         *nm->pending_remote_interrupts_notify = 0;
          clib_spinlock_unlock (&nm->pending_interrupt_lock);
 
          cpu_time_now = dispatch_pending_interrupts (vm, nm, cpu_time_now);