linux-toradex.git/drivers/net/can/dev.c, branch v3.17.2

net: set name_assign_type in alloc_netdev()

2014-07-15T23:12:48+00:00

Extend alloc_netdev{,_mq{,s}}() to take name_assign_type as argument, and convert
all users to pass NET_NAME_UNKNOWN.

Coccinelle patch:

@@
expression sizeof_priv, name, setup, txqs, rxqs, count;
@@

(
-alloc_netdev_mqs(sizeof_priv, name, setup, txqs, rxqs)
+alloc_netdev_mqs(sizeof_priv, name, NET_NAME_UNKNOWN, setup, txqs, rxqs)
|
-alloc_netdev_mq(sizeof_priv, name, setup, count)
+alloc_netdev_mq(sizeof_priv, name, NET_NAME_UNKNOWN, setup, count)
|
-alloc_netdev(sizeof_priv, name, setup)
+alloc_netdev(sizeof_priv, name, NET_NAME_UNKNOWN, setup)
)

v9: move comments here from the wrong commit

Signed-off-by: Tom Gundersen 
Reviewed-by: David Herrmann 
Signed-off-by: David S. Miller

can: fix return value from can_get_bittiming()

2014-04-24T20:30:39+00:00

When trying to set a data bitrate on non CAN FD devices the 'ip' tool
answers with:

	RTNETLINK answers: Unknown error 524

Rename '-ENOTSUPP' to '-EOPNOTSUPP' so that 'ip' answers correctly:

       RTNETLINK answers: Operation not supported

Signed-off-by: Oliver Hartkopp 
Signed-off-by: Marc Kleine-Budde

can: add bittiming check at interface open for CAN FD

2014-03-07T08:18:23+00:00

Additionally to have the second (data) bitrate available the data bitrate
has to be greater or equal to the arbitration bitrate in CAN FD.

Signed-off-by: Oliver Hartkopp 
Acked-by: Stephane Grosjean 
Signed-off-by: Marc Kleine-Budde

can: allow to change the device mtu for CAN FD capable devices

2014-03-07T08:18:23+00:00

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 
Acked-by: Stephane Grosjean 
Signed-off-by: Marc Kleine-Budde

can: introduce the data bitrate configuration for CAN FD

2014-03-07T08:18:22+00:00

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 
Acked-by: Stephane Grosjean 
Signed-off-by: Marc Kleine-Budde

can: provide a separate bittiming_const parameter to bittiming functions

2014-03-07T08:18:22+00:00

As the bittiming calculation functions are to be used with different
bittiming_const structures for CAN and CAN FD the direct reference to
priv->bittiming_const inside these functions has to be removed.

Also moved the check for existing bittiming const to one place.

Signed-off-by: Oliver Hartkopp 
Acked-by: Stephane Grosjean 
Signed-off-by: Marc Kleine-Budde

can: move sanity check for bitrate and tq into can_get_bittiming

2014-03-07T08:18:21+00:00

This patch moves a sanity check in order to have a second user for CAN FD.
Also simplify the return value generation in can_get_bittiming() as only
correct return values of can_[calc|fixup]_bittiming() lead to a return value of
zero.

Signed-off-by: Oliver Hartkopp 
Acked-by: Stephane Grosjean 
Signed-off-by: Marc Kleine-Budde

can: only send bitrate data via netlink when available

2014-03-07T08:18:21+00:00

When setting the bitrate both can_calc_bittiming() and can_fixup_bittiming()
lead to the bitrate variable to be set, when a proper bit timing is available.
Only then the bitrate configuration is stored for the device, so checking for
priv->bittiming.bitrate is always sufficient.

Signed-off-by: Oliver Hartkopp 
Acked-by: Stephane Grosjean 
Signed-off-by: Marc Kleine-Budde

can: preserve skbuff protocol in can_put_echo_skb

2014-03-07T08:18:20+00:00

The skbuff protocol value was formerly fixed/sanitized to ETH_P_CAN in
can_put_echo_skb(). With CAN FD this value has to be preserved.
This patch changes the hard assignment of the protocol value to a check of
valid protocol values for CAN and CAN FD.

Signed-off-by: Oliver Hartkopp 
Acked-by: Stephane Grosjean 
Signed-off-by: Marc Kleine-Budde

Merge tag 'linux-can-next-for-3.15-20140212' of git://gitorious.org/linux-can/linux-can-next

2014-02-13T23:16:00+00:00

linux-can-next-for-3.15-20140212

Marc Kleine-Budde says:

====================
this is a pull request of eight patches for net-next/master.

Florian Vaussard contributed a series that merged the sja1000 of_platform
into the platform driver. The of_platform driver is finally removed.
Stephane Grosjean supplied a patch to allocate CANFD skbs. In a patch
by Uwe Kleine-König another missing copyright information was added to
a userspace header. And a patch by Yoann DI RUZZA that adds listen only
mode to the at91_can driver.
====================

Signed-off-by: David S. Miller