svm vcl: allow random offsets for fifo segments in apps

Type: improvement

Signed-off-by: Florin Coras <fcoras@cisco.com>
Change-Id: I1658a9c19d8eae4c9a42c0a111d4ad343b8eb8a4

1 files changed, 6 insertions, 10 deletions

diff --git a/src/plugins/hs_apps/sapi/vpp_echo_bapi.c b/src/plugins/hs_apps/sapi/vpp_echo_bapi.c
index 6ad825d7872..807ec62d951 100644
--- a/src/plugins/hs_apps/sapi/vpp_echo_bapi.c
+++ b/src/plugins/hs_apps/sapi/vpp_echo_bapi.c
@@ -266,7 +266,6 @@ int
 echo_attach_session (uword segment_handle, uword rxf_offset, uword txf_offset,
 		     uword mq_offset, echo_session_t *s)
 {
-  svm_fifo_shared_t *rx_fifo, *tx_fifo;
   echo_main_t *em = &echo_main;
   u32 fs_index, eqs_index;
   fifo_segment_t *fs;
@@ -285,22 +284,19 @@ echo_attach_session (uword segment_handle, uword rxf_offset, uword txf_offset,
       ASSERT (eqs_index != (u32) ~0);
     }
 
-  rx_fifo = uword_to_pointer (rxf_offset, svm_fifo_shared_t *);
-  tx_fifo = uword_to_pointer (txf_offset, svm_fifo_shared_t *);
-  rx_fifo->client_session_index = s->session_index;
-  tx_fifo->client_session_index = s->session_index;
-
   clib_spinlock_lock (&em->segment_handles_lock);
 
   fs = fifo_segment_get_segment (&em->segment_main, fs_index);
-  s->rx_fifo = fifo_segment_alloc_fifo_w_shared (fs, rx_fifo);
-  s->tx_fifo = fifo_segment_alloc_fifo_w_shared (fs, tx_fifo);
+  s->rx_fifo = fifo_segment_alloc_fifo_w_offset (fs, rxf_offset);
+  s->tx_fifo = fifo_segment_alloc_fifo_w_offset (fs, txf_offset);
+  s->rx_fifo->shr->client_session_index = s->session_index;
+  s->tx_fifo->shr->client_session_index = s->session_index;
 
   if (mq_offset != (uword) ~0)
     {
       fs = fifo_segment_get_segment (&em->segment_main, eqs_index);
-      s->vpp_evt_q =
-	fifo_segment_msg_q_attach (fs, mq_offset, rx_fifo->slice_index);
+      s->vpp_evt_q = fifo_segment_msg_q_attach (fs, mq_offset,
+						s->rx_fifo->shr->slice_index);
     }
 
   clib_spinlock_unlock (&em->segment_handles_lock);