avf: remove barrier

Type: improvement

Change-Id: I95023d2e6034b77952e0423d0430b433ea0dab15
Signed-off-by: Damjan Marion <damarion@cisco.com>

diff --git a/src/plugins/avf/avf.h b/src/plugins/avf/avf.h
index 293a1a8..f6f79cf 100644 (file)
--- a/src/plugins/avf/avf.h
+++ b/src/plugins/avf/avf.h
@@ -428,7 +428,7 @@ avf_reg_write (avf_device_t * ad, u32 addr, u32 val)
 {
   if (ad->flags & AVF_DEVICE_F_ELOG)
     avf_elog_reg (ad, addr, val, 0);
-  *(volatile u32 *) ((u8 *) ad->bar0 + addr) = val;
+  __atomic_store_n ((u32 *) ((u8 *) ad->bar0 + addr), val, __ATOMIC_RELEASE);
 }
 
 static inline u32

diff --git a/src/plugins/avf/device.c b/src/plugins/avf/device.c
index c405d2e..dbe344c 100644 (file)
--- a/src/plugins/avf/device.c
+++ b/src/plugins/avf/device.c
@@ -156,7 +156,6 @@ avf_aq_desc_enq (vlib_main_t * vm, avf_device_t * ad, avf_aq_desc_t * dt,
   if (ad->flags & AVF_DEVICE_F_ELOG)
     clib_memcpy_fast (&dc, d, sizeof (avf_aq_desc_t));
 
-  CLIB_MEMORY_BARRIER ();
   ad->atq_next_slot = (ad->atq_next_slot + 1) % AVF_MBOX_LEN;
   avf_reg_write (ad, AVF_ATQT, ad->atq_next_slot);
   avf_reg_flush (ad);