Added rollover logic to UPDATE_VF_STAT and UPDATE_VF_STAT_36BIT macros.
Signed-off-by: David Harton <dhar...@cisco.com>
---
drivers/net/ixgbe/ixgbe_ethdev.c | 12 ++++++++++--
1 file changed, 10 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c b/drivers/net/ixgbe/ixgbe_ethdev.c
index 49285ce53..bc73ad195 100644
--- a/drivers/net/ixgbe/ixgbe_ethdev.c
+++ b/drivers/net/ixgbe/ixgbe_ethdev.c
@@ -385,7 +385,11 @@ static void ixgbe_l2_tunnel_conf(struct rte_eth_dev *dev);
#define UPDATE_VF_STAT(reg, last, cur) \
{ \
uint32_t latest = IXGBE_READ_REG(hw, reg); \
- cur += (latest - last) & UINT_MAX; \
+ if (latest >= last) \
+ cur += (latest - last); \
+ else \
+ cur += ((latest + ((uint64_t)1 << 32)) - last); \
+ cur &= UINT_MAX; \
last = latest; \
}
@@ -394,7 +398,11 @@ static void ixgbe_l2_tunnel_conf(struct rte_eth_dev *dev);
u64 new_lsb = IXGBE_READ_REG(hw, lsb); \
u64 new_msb = IXGBE_READ_REG(hw, msb); \
u64 latest = ((new_msb << 32) | new_lsb); \
- cur += (0x1000000000LL + latest - last) & 0xFFFFFFFFFLL; \
+ if (latest >= last) \
+ cur += (latest - last); \
+ else \
+ cur += ((latest + ((u64)1 << 36)) - last); \
+ cur &= 0xFFFFFFFFFLL; \
last = latest; \
}
--
2.19.1
