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3 Commits

Author SHA1 Message Date
Marc Kleine-Budde
99842c9685 can: dev: can_rx_offload_get_echo_skb(): extend to return can frame length 
In order to implement byte queue limits (bql) in CAN drivers, the length of the
CAN frame needs to be passed into the networking stack after queueing and after
transmission completion.

To avoid to calculate this length twice, extend can_rx_offload_get_echo_skb()
to return that value. Convert all users of this function, too.

Reviewed-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Link: https://lore.kernel.org/r/20210111141930.693847-15-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
 2021-01-14 08:43:43 +01:00
Marc Kleine-Budde
f0ef72febc can: dev: extend struct can_skb_priv to hold CAN frame length 
In order to implement byte queue limits (bql) in CAN drivers, the length of the
CAN frame needs to be passed into the networking stack after queueing and after
transmission completion.

To avoid to calculate this length twice, extend the struct can_skb_priv to hold
the length of the CAN frame and extend __can_get_echo_skb() to return that
value.

Reviewed-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Link: https://lore.kernel.org/r/20210111141930.693847-12-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
 2021-01-14 08:43:42 +01:00
Marc Kleine-Budde
3e77f70e73 can: dev: move driver related infrastructure into separate subdir 
This patch moves the CAN driver related infrastructure into a separate subdir.
It will be split into more files in the coming patches.

Reviewed-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Link: https://lore.kernel.org/r/20210111141930.693847-3-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
 2021-01-13 09:42:58 +01:00