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* can: netlink: Add CAN_CTRLMODE_PRESUME_ACK flagNikita Edward Baruzdin2014-07-151-0/+1
| | | | | | | | | | | | | | Most CAN controllers have a support for ignoring ACK absence. Some of them refer to this feature as a self test mode (e. g. SJA1000) and some include it as a part of a loopback mode (e. g. MCP2510). Setting the introduced flag via netlink should make CAN controller perform a successful transmission, even if there is no acknowledgement (dominant ACK bit) received. Signed-off-by: Nikita Edward Baruzdin <nebaruzdin@gmail.com> Acked-by: Oliver Hartkopp <socketcan@hartkopp.net> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
* can: netlink: Remove space before tabNikita Edward Baruzdin2014-07-151-1/+1
| | | | | | | | Fixes the corresponing checkpatch.pl warning. Signed-off-by: Nikita Edward Baruzdin <nebaruzdin@gmail.com> Acked-by: Oliver Hartkopp <socketcan@hartkopp.net> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
* can: unify identifiers to ensure unique include processingOliver Hartkopp2014-05-195-15/+15
| | | | | | | | | | | | | Armin pointed me to the fact that the identifier which is used to ensure the unique include processing in lunux/include/uapi/linux/can.h is CAN_H. This clashed with his own source as includes from libraries and APIs should use an underscore '_' at the identifier start. This patch fixes the protection identifiers in all CAN relavant includes. Reported-by: Armin Burchardt <armin@uni-bremen.de> Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
* can: allow to change the device mtu for CAN FD capable devicesOliver Hartkopp2014-03-071-0/+1
| | | | | | | | | | | | | 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>
* can: introduce the data bitrate configuration for CAN FDOliver Hartkopp2014-03-071-0/+2
| | | | | | | | | | As CAN FD offers a second bitrate for the data section of the CAN frame the infrastructure for storing and configuring this second bitrate is introduced. Improved the readability of the if-statement by inserting some newlines. 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>
* can: add explicit copyrights to can's netlink headerUwe Kleine-König2013-09-211-0/+8
| | | | | | | | | | This file is copied to the source code of user space applications (in this case can-utils) and so it makes sense to mention explicitly their copyright. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: Wolfgang Grandegger <wg@grandegger.com> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
* can: add explicit copyrights to can headersUwe Kleine-König2013-09-214-0/+128
| | | | | | | | | | | | These files are copied to the source code of user space applications (in this case can-utils) and so it makes sense to mention explicitly their copyright. I added the terms of C code that was introduced in the same commit as these headers. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: Oliver Hartkopp <socketcan@hartkopp.net> Acked-by: Urs Thuermann <urs.thuermann@volkswagen.de> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
* can: gw: add a per rule limitation of frame hopsOliver Hartkopp2013-08-291-1/+8
| | | | | | | | | | Usually the received CAN frames can be processed/routed as much as 'max_hops' times (which is given at module load time of the can-gw module). Introduce a new configuration option to reduce the number of possible hops for a specific gateway rule to a value smaller then max_hops. Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
* can: gw: indicate and count deleted frames due to misconfigurationOliver Hartkopp2013-01-261-0/+1
| | | | | | | | Add a statistic counter to detect deleted frames due to misconfiguration with a new read-only CGW_DELETED netlink attribute for the CAN gateway. Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
* can: gw: make routing to the incoming CAN interface configurableOliver Hartkopp2013-01-261-0/+1
| | | | | | | | | Introduce new configuration flag CGW_FLAGS_CAN_IIF_TX_OK to configure if a CAN sk_buff that has been routed with can-gw is allowed to be send back to the originating CAN interface. Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
* UAPI: (Scripted) Disintegrate include/linux/canDavid Howells2012-10-106-0/+476
| | | | | | | | | | Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Michael Kerrisk <mtk.manpages@gmail.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Dave Jones <davej@redhat.com> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
* UAPI: (Scripted) Set up UAPI Kbuild filesDavid Howells2012-10-021-0/+1
Set up empty UAPI Kbuild files to be populated by the header splitter. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Dave Jones <davej@redhat.com>
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