Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6

[safe/jmp/linux-2.6] / drivers / net / ixgbe / ixgbe.h

diff --git a/drivers/net/ixgbe/ixgbe.h b/drivers/net/ixgbe/ixgbe.h
index 0b54717..c26433d 100644 (file)
--- 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_ */