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authorOliver Hartkopp <socketcan@hartkopp.net>2014-02-28 19:36:24 +0400
committerMarc Kleine-Budde <mkl@pengutronix.de>2014-03-07 12:18:23 +0400
commitbc05a8944a344acdb81a65de055ca6febbf9657c (patch)
treebf3e474f5bac669b5a9d4b3d07aa7119875334fc /include/linux/can
parent9859ccd2c8be63ce939522e63e265f2b0caa1109 (diff)
downloadlinux-bc05a8944a344acdb81a65de055ca6febbf9657c.tar.xz
can: allow to change the device mtu for CAN FD capable devices
The configuration for CAN FD depends on CAN_CTRLMODE_FD enabled in the driver specific ctrlmode_supported capabilities. The configuration can be done either with the 'fd { on | off }' option in the 'ip' tool from iproute2 or by setting the CAN netdevice MTU to CAN_MTU (16) or to CANFD_MTU (72). Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net> Acked-by: Stephane Grosjean <s.grosjean@peak-system.com> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Diffstat (limited to 'include/linux/can')
-rw-r--r--include/linux/can/dev.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/can/dev.h b/include/linux/can/dev.h
index 8adaee96f292..3ce5e526525f 100644
--- a/include/linux/can/dev.h
+++ b/include/linux/can/dev.h
@@ -113,6 +113,7 @@ struct can_priv *safe_candev_priv(struct net_device *dev);
int open_candev(struct net_device *dev);
void close_candev(struct net_device *dev);
+int can_change_mtu(struct net_device *dev, int new_mtu);
int register_candev(struct net_device *dev);
void unregister_candev(struct net_device *dev);