diff options
Diffstat (limited to 'drivers/net/ixgbe/ixgbe.h')
| -rw-r--r-- | drivers/net/ixgbe/ixgbe.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/net/ixgbe/ixgbe.h b/drivers/net/ixgbe/ixgbe.h index 0b54717f707..c26433d1460 100644 --- a/drivers/net/ixgbe/ixgbe.h +++ b/drivers/net/ixgbe/ixgbe.h @@ -189,10 +189,11 @@ struct ixgbe_q_vector { }; /* Helper macros to switch between ints/sec and what the register uses. - * And yes, it's the same math going both ways. + * And yes, it's the same math going both ways. The lowest value + * supported by all of the ixgbe hardware is 8. */ #define EITR_INTS_PER_SEC_TO_REG(_eitr) \ - ((_eitr) ? (1000000000 / ((_eitr) * 256)) : 0) + ((_eitr) ? (1000000000 / ((_eitr) * 256)) : 8) #define EITR_REG_TO_INTS_PER_SEC EITR_INTS_PER_SEC_TO_REG #define IXGBE_DESC_UNUSED(R) \ @@ -366,5 +367,6 @@ extern void ixgbe_reset_interrupt_capability(struct ixgbe_adapter *adapter); extern int ixgbe_init_interrupt_scheme(struct ixgbe_adapter *adapter); void ixgbe_napi_add_all(struct ixgbe_adapter *adapter); void ixgbe_napi_del_all(struct ixgbe_adapter *adapter); +extern void ixgbe_write_eitr(struct ixgbe_adapter *, int, u32); #endif /* _IXGBE_H_ */ |