[NIU]: Add Sun Neptune ethernet driver.

With cleanup suggestions and bugs spotted by Stephen Hemminger,
Ingo Oeser, Matheos Worku, and Oliver Hartkopp.

Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index 0e48b29..9c635a2 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -2594,6 +2594,13 @@
 	help
 	  This enables the support for NetXen's Gigabit Ethernet card.
 
+config NIU
+	tristate "Sun Neptune 10Gbit Ethernet support"
+	depends on PCI
+	help
+	  This enables support for cards based upon Sun's
+	  Neptune chipset.
+
 config PASEMI_MAC
 	tristate "PA Semi 1/10Gbit MAC"
 	depends on PPC64 && PCI