qeth: new qeth device driver

List of major changes and improvements:
 no manipulation of the global ARP constructor
 clean code split into core, layer 2 and layer 3 functionality
 better exploitation of the ethtool interface
 better representation of the various hardware capabilities
 fix packet socket support (tcpdump), no fake_ll required
 osasnmpd notification via udev events
 coding style and beautification

Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/arch/s390/defconfig b/arch/s390/defconfig
index 62f6b5a..cb93bf2 100644
--- a/arch/s390/defconfig
+++ b/arch/s390/defconfig
@@ -537,11 +537,9 @@
 # CONFIG_SMSGIUCV is not set
 # CONFIG_CLAW is not set
 CONFIG_QETH=y
-
-#
-# Gigabit Ethernet default settings
-#
-# CONFIG_QETH_IPV6 is not set
+CONFIG_QETH_L2=y
+CONFIG_QETH_L3=y
+CONFIG_QETH_IPV6=y
 CONFIG_CCWGROUP=y
 # CONFIG_PPP is not set
 # CONFIG_SLIP is not set