net: macvtap driver
In order to use macvlan with qemu and other tools that require
a tap file descriptor, the macvtap driver adds a small backend
with a character device with the same interface as the tun
driver, with a minimum set of features.
Macvtap interfaces are created in the same way as macvlan
interfaces using ip link, but the netif is just used as a
handle for configuration and accounting, while the data
goes through the chardev. Each macvtap interface has its
own character device, simplifying permission management
significantly over the generic tun/tap driver.
Cc: Patrick McHardy <kaber@trash.net>
Cc: Stephen Hemminger <shemminger@linux-foundation.org>
Cc: David S. Miller" <davem@davemloft.net>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Or Gerlitz <ogerlitz@voltaire.com>
Cc: netdev@vger.kernel.org
Cc: bridge@lists.linux-foundation.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index cb0e5344..411e207 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -90,6 +90,18 @@
To compile this driver as a module, choose M here: the module
will be called macvlan.
+config MACVTAP
+ tristate "MAC-VLAN based tap driver (EXPERIMENTAL)"
+ depends on MACVLAN
+ help
+ This adds a specialized tap character device driver that is based
+ on the MAC-VLAN network interface, called macvtap. A macvtap device
+ can be added in the same way as a macvlan device, using 'type
+ macvlan', and then be accessed through the tap user space interface.
+
+ To compile this driver as a module, choose M here: the module
+ will be called macvtap.
+
config EQUALIZER
tristate "EQL (serial line load balancing) support"
---help---