OpenCloudOS-Kernel/include/linux/can
Vincent Mailhol 90f942c5a6 can: dev: add generic function can_eth_ioctl_hwts()
Tools based on libpcap (such as tcpdump) expect the SIOCSHWTSTAMP
ioctl call to be supported. This is also specified in the kernel doc
[1]. The purpose of this ioctl is to toggle the hardware timestamps.

Currently, CAN devices which support hardware timestamping have those
always activated. can_eth_ioctl_hwts() is a dumb function that will
always succeed when requested to set tx_type to HWTSTAMP_TX_ON or
rx_filter to HWTSTAMP_FILTER_ALL.

[1] Kernel doc: Timestamping, section 3.1 "Hardware Timestamping
Implementation: Device Drivers"
Link: https://docs.kernel.org/networking/timestamping.html#hardware-timestamping-implementation-device-drivers

Signed-off-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Link: https://lore.kernel.org/all/20220727101641.198847-9-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_eth_ioctl_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