On 12/10, David Harton wrote:
>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
>o
Could you provide Fixes: tag and cc stable?
Acked-by: Xiaolong Ye <xiaolong...@intel.com>
