diff options
| author |   Oliver Hartkopp <socketcan@hartkopp.net> | 2014-02-28 16:36:24 +0100 |
|---|---|---|
| committer |   Marc Kleine-Budde <mkl@pengutronix.de> | 2014-03-07 09:18:23 +0100 |
| commit | bc05a8944a344acdb81a65de055ca6febbf9657c (patch) | |
| tree | bf3e474f5bac669b5a9d4b3d07aa7119875334fc /include | |
| parent | can: introduce the data bitrate configuration for CAN FD (diff) | |
| download | linux-dev-bc05a8944a344acdb81a65de055ca6febbf9657c.tar.xz linux-dev-bc05a8944a344acdb81a65de055ca6febbf9657c.zip | |
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')
| -rw-r--r-- | include/linux/can/dev.h | 1 | ||||
| -rw-r--r-- | include/uapi/linux/can/netlink.h | 1 |
2 files changed, 2 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); diff --git a/include/uapi/linux/can/netlink.h b/include/uapi/linux/can/netlink.h index b41933d6bdcd..7e2e1863db16 100644 --- a/include/uapi/linux/can/netlink.h +++ b/include/uapi/linux/can/netlink.h @@ -96,6 +96,7 @@ struct can_ctrlmode { #define CAN_CTRLMODE_3_SAMPLES 0x04 /* Triple sampling mode */ #define CAN_CTRLMODE_ONE_SHOT 0x08 /* One-Shot mode */ #define CAN_CTRLMODE_BERR_REPORTING 0x10 /* Bus-error reporting */ +#define CAN_CTRLMODE_FD 0x20 /* CAN FD mode */ /* * CAN device statistics |