2 files changed, 26 insertions, 2 deletions

diff --git a/src/vnet/session/segment_manager.c b/src/vnet/session/segment_manager.c
index 47c7f563542..9a8af3b42fc 100644
--- a/src/vnet/session/segment_manager.c
+++ b/src/vnet/session/segment_manager.c
@@ -627,8 +627,8 @@ alloc_check:
 void
 segment_manager_dealloc_fifos (svm_fifo_t * rx_fifo, svm_fifo_t * tx_fifo)
 {
-  fifo_segment_t *fs;
   segment_manager_t *sm;
+  fifo_segment_t *fs;
   u32 segment_index;
 
   if (!rx_fifo || !tx_fifo)
@@ -669,6 +669,19 @@ segment_manager_dealloc_fifos (svm_fifo_t * rx_fifo, svm_fifo_t * tx_fifo)
     segment_manager_segment_reader_unlock (sm);
 }
 
+int
+segment_manager_grow_fifo (segment_manager_t * sm, svm_fifo_t * f, u32 size)
+{
+  fifo_segment_t *fs;
+  int rv;
+
+  fs = segment_manager_get_segment_w_lock (sm, f->segment_index);
+  rv = fifo_segment_grow_fifo (fs, f, size);
+  segment_manager_segment_reader_unlock (sm);
+
+  return rv;
+}
+
 u32
 segment_manager_evt_q_expected_size (u32 q_len)
 {
diff --git a/src/vnet/session/segment_manager.h b/src/vnet/session/segment_manager.h
index 4f30b7a8d2c..cbf8e353522 100644
--- a/src/vnet/session/segment_manager.h
+++ b/src/vnet/session/segment_manager.h
@@ -94,7 +94,7 @@ void segment_manager_del_segment (segment_manager_t * sm,
 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 *,
+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);
@@ -114,6 +114,17 @@ int segment_manager_try_alloc_fifos (fifo_segment_t * fs,
 				     svm_fifo_t ** tx_fifo);
 void segment_manager_dealloc_fifos (svm_fifo_t * rx_fifo,
 				    svm_fifo_t * tx_fifo);
+
+/**
+ * Grows fifo owned by segment manager
+ *
+ * @param sm	segment manager that owns the fifo
+ * @param f	fifo to be grown
+ * @param size	amount of bytes to add to fifo
+ * @return	0 on success, negative number otherwise
+ */
+int segment_manager_grow_fifo (segment_manager_t * sm, svm_fifo_t * f,
+			       u32 size);
 u8 segment_manager_has_fifos (segment_manager_t * sm);
 
 svm_msg_q_t *segment_manager_alloc_queue (fifo_segment_t * fs,