Fix a misinterpreatation of VF statistic macro in e1000/igb.
Signed-off-by: Harry van Haaren <harry.van.haaren at intel.com>
---
drivers/net/e1000/igb_ethdev.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/net/e1000/igb_ethdev.c b/drivers/net/e1000/igb_ethdev.c
index 848ef6e..e3f7402 100644
--- a/drivers/net/e1000/igb_ethdev.c
+++ b/drivers/net/e1000/igb_ethdev.c
@@ -246,7 +246,11 @@ static void eth_igb_configure_msix_intr(struct rte_eth_dev
*dev);
#define UPDATE_VF_STAT(reg, last, cur) \
{ \
u32 latest = E1000_READ_REG(hw, reg); \
- cur += latest - last; \
+ if(likely(latest > last)) { \
+ cur += latest - last; \
+ } else { \
+ cur += (UINT_MAX - last) + latest;\
+ } \
last = latest; \
}
--
1.9.1
