linux-toradex.git/drivers/net/can/bfin_can.c, branch v3.0.41 Linux kernel for Apalis and Colibri modules net: trans_start cleanups 2010-05-10T12:01:31+00:00 Eric Dumazet eric.dumazet@gmail.com 2010-05-10T12:01:31+00:00 1ae5dc342ac78d7a42965fd1f323815f6f5ef2c1 Now that core network takes care of trans_start updates, dont do it in drivers themselves, if possible. Drivers can avoid one cache miss (on dev->trans_start) in their start_xmit() handler. Exceptions are NETIF_F_LLTX drivers Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> 
Now that core network takes care of trans_start updates, dont do it
in drivers themselves, if possible. Drivers can avoid one cache miss
(on dev->trans_start) in their start_xmit() handler.

Exceptions are NETIF_F_LLTX drivers

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix some #includes in CAN drivers (rebased for net-next-2.6) 2010-04-13T10:32:42+00:00 Hans J. Koch hjk@linutronix.de 2010-04-13T00:03:25+00:00 829e0015431537176e38812f88fffe1d3250083e In the current implementation, CAN drivers need to #include <linux/can.h> _before_ they #include <linux/can/dev.h>, which is both ugly and unnecessary. Fix this by including <linux/can.h> in <linux/can/dev.h> and remove the #include <linux/can.h> lines from drivers. Signed-off-by: Hans J. Koch <hjk@linutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net> 
In the current implementation, CAN drivers need to #include <linux/can.h>
_before_ they #include <linux/can/dev.h>, which is both ugly and
unnecessary.

Fix this by including <linux/can.h> in <linux/can/dev.h> and remove the
#include <linux/can.h> lines from drivers.

Signed-off-by: Hans J. Koch <hjk@linutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
can: bfin_can: switch to common Blackfin can header 2010-03-23T03:05:45+00:00 Mike Frysinger vapier@gentoo.org 2010-03-21T21:06:01+00:00 21afc27c9f9ae1f6370c47b323be7f3b75106569 The MMR bits are being moved to this header, so include it. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Acked-by: Wolfgang Grandegger <wg@grandegger.com> Signed-off-by: David S. Miller <davem@davemloft.net> 
The MMR bits are being moved to this header, so include it.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Acked-by: Wolfgang Grandegger <wg@grandegger.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
can: fix bfin_can build error after alloc_candev() change 2010-03-08T20:13:57+00:00 Barry Song barry.song@analog.com 2010-03-08T20:13:57+00:00 e9dcd1613f0ac0b3573b7d813a2c5672cd8302eb Looks like commit a6e4bc530403 didn't include updates to drivers so the Blackfin CAN driver fails to build now. Signed-off-by: Barry Song <barry.song@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org> Acked-by: Wolfgang Grandegger <wg@grandegger.com> Signed-off-by: David S. Miller <davem@davemloft.net> 
Looks like commit a6e4bc530403 didn't include updates to drivers so the
Blackfin CAN driver fails to build now.

Signed-off-by: Barry Song <barry.song@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Acked-by: Wolfgang Grandegger <wg@grandegger.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
can: Proper ctrlmode handling for CAN devices 2010-01-15T09:39:17+00:00 Christian Pellegrin chripell@fsfe.org 2010-01-14T07:08:34+00:00 ad72c347e56bf3a0231b9d686e17764157d2961c This patch adds error checking of ctrlmode values for CAN devices. As an example all availabe bits are implemented in the mcp251x driver. Signed-off-by: Christian Pellegrin <chripell@fsfe.org> Acked-by: Wolfgang Grandegger <wg@grandegger.com> Signed-off-by: David S. Miller <davem@davemloft.net> 
This patch adds error checking of ctrlmode values for CAN devices. As
an example all availabe bits are implemented in the mcp251x driver.

Signed-off-by: Christian Pellegrin <chripell@fsfe.org>
Acked-by: Wolfgang Grandegger <wg@grandegger.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
can: Unify droping of invalid tx skbs and netdev stats 2010-01-12T10:00:46+00:00 Oliver Hartkopp oliver@hartkopp.net 2010-01-12T10:00:46+00:00 3ccd4c6167d3b39d52631767ebbf8b5677c5855d To prevent the CAN drivers to operate on invalid socketbuffers the skbs are now checked and silently dropped at the xmit-function consistently. Also the netdev stats are consistently using the CAN data length code (dlc) for [rx|tx]_bytes now. Signed-off-by: Oliver Hartkopp <oliver@hartkopp.net> Acked-by: Wolfgang Grandegger <wg@grandegger.com> Signed-off-by: David S. Miller <davem@davemloft.net> 
To prevent the CAN drivers to operate on invalid socketbuffers the skbs are
now checked and silently dropped at the xmit-function consistently.

Also the netdev stats are consistently using the CAN data length code (dlc)
for [rx|tx]_bytes now.

Signed-off-by: Oliver Hartkopp <oliver@hartkopp.net>
Acked-by: Wolfgang Grandegger <wg@grandegger.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
can: Fix data length code handling in rx path 2009-12-14T03:47:42+00:00 Oliver Hartkopp oliver@hartkopp.net 2009-12-12T04:13:21+00:00 c7cd606f60e7679c7f9eee7010f02a6f000209c1 A valid CAN dataframe can have a data length code (DLC) of 0 .. 8 data bytes. When reading the CAN controllers register the 4-bit value may contain values from 0 .. 15 which may exceed the reserved space in the socket buffer! The ISO 11898-1 Chapter 8.4.2.3 (DLC field) says that register values > 8 should be reduced to 8 without any error reporting or frame drop. This patch introduces a new helper macro to cast a given 4-bit data length code (dlc) to __u8 and ensure the DLC value to be max. 8 bytes. The different handlings in the rx path of the CAN netdevice drivers are fixed. Signed-off-by: Oliver Hartkopp <oliver@hartkopp.net> Signed-off-by: Wolfgang Grandegger <wg@grandegger.com> Signed-off-by: David S. Miller <davem@davemloft.net> 
A valid CAN dataframe can have a data length code (DLC) of 0 .. 8 data bytes.

When reading the CAN controllers register the 4-bit value may contain values
from 0 .. 15 which may exceed the reserved space in the socket buffer!

The ISO 11898-1 Chapter 8.4.2.3 (DLC field) says that register values > 8
should be reduced to 8 without any error reporting or frame drop.

This patch introduces a new helper macro to cast a given 4-bit data length
code (dlc) to __u8 and ensure the DLC value to be max. 8 bytes.

The different handlings in the rx path of the CAN netdevice drivers are fixed.

Signed-off-by: Oliver Hartkopp <oliver@hartkopp.net>
Signed-off-by: Wolfgang Grandegger <wg@grandegger.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
can: add the driver for Analog Devices Blackfin on-chip CAN controllers 2009-12-11T23:07:58+00:00 Barry Song 21cnbao@gmail.com 2009-12-10T23:46:28+00:00 bbb84619c378414118fd4f1778125cd246c71e53 Signed-off-by: Barry Song <21cnbao@gmail.com> Signed-off-by: H.J. Oertel <oe@port.de> Signed-off-by: Wolfgang Grandegger <wg@grandegger.de> Signed-off-by: David S. Miller <davem@davemloft.net> 
Signed-off-by: Barry Song <21cnbao@gmail.com>
Signed-off-by: H.J. Oertel <oe@port.de>
Signed-off-by: Wolfgang Grandegger <wg@grandegger.de>
Signed-off-by: David S. Miller <davem@davemloft.net>