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authorOliver Hartkopp <socketcan@hartkopp.net>2017-04-25 08:19:44 +0200
committerMarc Kleine-Budde <mkl@pengutronix.de>2017-04-25 09:04:30 +0200
commita8f820a380a2a06fc4fe1a54159067958f800929 (patch)
tree4bb3226294328510737edbffe3d245166a8ed6fe /drivers/net/can/Kconfig
parent1ef83310b81551079af992c4cbb5e089dd1397be (diff)
downloadlinux-a8f820a380a2a06fc4fe1a54159067958f800929.tar.bz2
can: add Virtual CAN Tunnel driver (vxcan)
Similar to the virtual ethernet driver veth, vxcan implements a local CAN traffic tunnel between two virtual CAN network devices. See Kconfig entry for details. Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Diffstat (limited to 'drivers/net/can/Kconfig')
-rw-r--r--drivers/net/can/Kconfig18
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/net/can/Kconfig b/drivers/net/can/Kconfig
index aa20b69d2a1a..ac4ff394bc56 100644
--- a/drivers/net/can/Kconfig
+++ b/drivers/net/can/Kconfig
@@ -9,6 +9,24 @@ config CAN_VCAN
This driver can also be built as a module. If so, the module
will be called vcan.
+config CAN_VXCAN
+ tristate "Virtual CAN Tunnel (vxcan)"
+ ---help---
+ Similar to the virtual ethernet driver veth, vxcan implements a
+ local CAN traffic tunnel between two virtual CAN network devices.
+ When creating a vxcan, two vxcan devices are created as pair.
+ When one end receives the packet it appears on its pair and vice
+ versa. The vxcan can be used for cross namespace communication.
+
+ In opposite to vcan loopback devices the vxcan only forwards CAN
+ frames to its pair and does *not* provide a local echo of sent
+ CAN frames. To disable a potential echo in af_can.c the vxcan driver
+ announces IFF_ECHO in the interface flags. To have a clean start
+ in each namespace the CAN GW hop counter is set to zero.
+
+ This driver can also be built as a module. If so, the module
+ will be called vxcan.
+
config CAN_SLCAN
tristate "Serial / USB serial CAN Adaptors (slcan)"
depends on TTY