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authorRostislav Lisovy <lisovy@gmail.com>2012-07-04 05:32:03 +0200
committerMarc Kleine-Budde <mkl@pengutronix.de>2012-07-04 13:07:05 +0200
commitf057bbb6f9ed0fb61ea11105c9ef0ed5ac1a354d (patch)
treed1a3ce318ee81fec79aea757633e68612f04bbd9 /include/linux/can.h
parent30c1e672044d98e5c4cff5fcbdb34b55a2df0c0f (diff)
net: em_canid: Ematch rule to match CAN frames according to their identifiers
This ematch makes it possible to classify CAN frames (AF_CAN) according to their identifiers. This functionality can not be easily achieved with existing classifiers, such as u32, because CAN identifier is always stored in native endianness, whereas u32 expects Network byte order. Signed-off-by: Rostislav Lisovy <lisovy@gmail.com> Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Diffstat (limited to 'include/linux/can.h')
-rw-r--r--include/linux/can.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/can.h b/include/linux/can.h
index 1a66cf6112ae..018055efc034 100644
--- a/include/linux/can.h
+++ b/include/linux/can.h
@@ -38,6 +38,9 @@
*/
typedef __u32 canid_t;
+#define CAN_SFF_ID_BITS 11
+#define CAN_EFF_ID_BITS 29
+
/*
* Controller Area Network Error Message Frame Mask structure
*