linux-stable/include/linux/can
Vincent Mailhol 7fb48d25b5 can: dev: add generic function can_ethtool_op_get_ts_info_hwts()
Add function can_ethtool_op_get_ts_info_hwts(). This function will be
used by CAN devices with hardware TX/RX timestamping support to
implement ethtool_ops::get_ts_info. This function does not offer
support to activate/deactivate hardware timestamps at device level nor
support the filter options (which is currently the case for all CAN
devices with hardware timestamping support).

The fact that hardware timestamp can not be deactivated at hardware
level does not impact the userland. As long as the user do not set
SO_TIMESTAMPING using a setsockopt() or ioctl(), the kernel will not
emit TX timestamps (RX timestamps will still be reproted as it is the
case currently).

Drivers which need more fine grained control remains free to implement
their own function, but we foresee that the generic function
introduced here will be sufficient for the majority.

Signed-off-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Link: https://lore.kernel.org/all/20220727101641.198847-8-mailhol.vincent@wanadoo.fr
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-07-28 11:44:30 +02:00
..
dev can: remove obsolete get_canfd_dlc() macro 2020-11-20 09:43:30 +01:00
platform can: flexcan: add platform data header 2021-07-25 11:36:29 +02:00
bittiming.h can: netlink: dump bitrate 0 if can_priv::bittiming.bitrate is -1U 2022-07-03 11:34:24 +02:00
can-ml.h net: introduce CAN specific pointer in the struct net_device 2021-02-24 14:32:15 -08:00
core.h can: remove obsolete version strings 2020-10-12 10:06:39 +02:00
dev.h can: dev: add generic function can_ethtool_op_get_ts_info_hwts() 2022-07-28 11:44:30 +02:00
length.h can: length: can_skb_get_frame_len(): introduce function to get data length of frame in data link layer 2021-01-14 08:43:42 +01:00
rx-offload.h can: rx-offload: rename can_rx_offload_queue_sorted() -> can_rx_offload_queue_timestamp() 2022-04-19 16:58:04 +02:00
skb.h can: skb: move can_dropped_invalid_skb() and can_skb_headroom_valid() to skb.c 2022-06-11 17:11:02 +02:00