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can: convert generic HW timestamp ioctl to ndo_hwtstamp callbacks

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Can has generic implementation of ndo_eth_ioctl which implements only HW
timestamping commands. Implement generic ndo_hwtstamp callbacks and use
it in drivers instead of generic ioctl interface.

Signed-off-by: Vadim Fedorenko <vadim.fedorenko@linux.dev>
Reviewed-by: Kory Maincent <kory.maincent@bootlin.com>
Reviewed-by: Vincent Mailhol <mailhol@kernel.org>
Link: https://patch.msgid.link/20251029231620.1135640-2-vadim.fedorenko@linux.dev
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
This commit is contained in:
Vadim Fedorenko
2025-10-29 23:16:18 +00:00
committed by Marc Kleine-Budde
parent ea7d0d60eb
commit 4f6b0435c6
8 changed files with 54 additions and 32 deletions
Download Patch File Download Diff File Expand all files Collapse all files

45
drivers/net/can/dev/dev.c
View File

@@ -379,34 +379,33 @@ int can_set_static_ctrlmode(struct net_device *dev, u32 static_mode)
}
EXPORT_SYMBOL_GPL(can_set_static_ctrlmode);
/* generic implementation of netdev_ops::ndo_eth_ioctl for CAN devices
/* generic implementation of netdev_ops::ndo_hwtstamp_get for CAN devices
* supporting hardware timestamps
*/
int can_eth_ioctl_hwts(struct net_device *netdev, struct ifreq *ifr, int cmd)
int can_hwtstamp_get(struct net_device *netdev,
struct kernel_hwtstamp_config *cfg)
{
struct hwtstamp_config hwts_cfg = { 0 };
cfg->tx_type = HWTSTAMP_TX_ON;
cfg->rx_filter = HWTSTAMP_FILTER_ALL;
switch (cmd) {
case SIOCSHWTSTAMP: /* set */
if (copy_from_user(&hwts_cfg, ifr->ifr_data, sizeof(hwts_cfg)))
return -EFAULT;
if (hwts_cfg.tx_type == HWTSTAMP_TX_ON &&
hwts_cfg.rx_filter == HWTSTAMP_FILTER_ALL)
return 0;
return -ERANGE;
case SIOCGHWTSTAMP: /* get */
hwts_cfg.tx_type = HWTSTAMP_TX_ON;
hwts_cfg.rx_filter = HWTSTAMP_FILTER_ALL;
if (copy_to_user(ifr->ifr_data, &hwts_cfg, sizeof(hwts_cfg)))
return -EFAULT;
return 0;
default:
return -EOPNOTSUPP;
}
return 0;
}
EXPORT_SYMBOL(can_eth_ioctl_hwts);
EXPORT_SYMBOL(can_hwtstamp_get);
/* generic implementation of netdev_ops::ndo_hwtstamp_set for CAN devices
* supporting hardware timestamps
*/
int can_hwtstamp_set(struct net_device *netdev,
struct kernel_hwtstamp_config *cfg,
struct netlink_ext_ack *extack)
{
if (cfg->tx_type == HWTSTAMP_TX_ON &&
cfg->rx_filter == HWTSTAMP_FILTER_ALL)
return 0;
NL_SET_ERR_MSG_MOD(extack, "Only TX on and RX all packets filter supported");
return -ERANGE;
}
EXPORT_SYMBOL(can_hwtstamp_set);
/* generic implementation of ethtool_ops::get_ts_info for CAN devices
* supporting hardware timestamps

3
drivers/net/can/esd/esd_402_pci-core.c
View File

@@ -86,7 +86,8 @@ static const struct net_device_ops pci402_acc_netdev_ops = {
.ndo_open = acc_open,
.ndo_stop = acc_close,
.ndo_start_xmit = acc_start_xmit,
.ndo_eth_ioctl = can_eth_ioctl_hwts,
.ndo_hwtstamp_get = can_hwtstamp_get,
.ndo_hwtstamp_set = can_hwtstamp_set,
};
static const struct ethtool_ops pci402_acc_ethtool_ops = {

3
drivers/net/can/kvaser_pciefd/kvaser_pciefd_core.c
View File

@@ -902,8 +902,9 @@ static void kvaser_pciefd_bec_poll_timer(struct timer_list *data)
static const struct net_device_ops kvaser_pciefd_netdev_ops = {
.ndo_open = kvaser_pciefd_open,
.ndo_stop = kvaser_pciefd_stop,
.ndo_eth_ioctl = can_eth_ioctl_hwts,
.ndo_start_xmit = kvaser_pciefd_start_xmit,
.ndo_hwtstamp_get = can_hwtstamp_get,
.ndo_hwtstamp_set = can_hwtstamp_set,
};
static int kvaser_pciefd_set_phys_id(struct net_device *netdev,

3
drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c
View File

@@ -1714,7 +1714,8 @@ static const struct net_device_ops mcp251xfd_netdev_ops = {
.ndo_open = mcp251xfd_open,
.ndo_stop = mcp251xfd_stop,
.ndo_start_xmit = mcp251xfd_start_xmit,
.ndo_eth_ioctl = can_eth_ioctl_hwts,
.ndo_hwtstamp_get = can_hwtstamp_get,
.ndo_hwtstamp_set = can_hwtstamp_set,
};
static void

3
drivers/net/can/usb/etas_es58x/es58x_core.c
View File

@@ -1976,7 +1976,8 @@ static const struct net_device_ops es58x_netdev_ops = {
.ndo_open = es58x_open,
.ndo_stop = es58x_stop,
.ndo_start_xmit = es58x_start_xmit,
.ndo_eth_ioctl = can_eth_ioctl_hwts,
.ndo_hwtstamp_get = can_hwtstamp_get,
.ndo_hwtstamp_set = can_hwtstamp_set,
};
static const struct ethtool_ops es58x_ethtool_ops = {

20
drivers/net/can/usb/gs_usb.c
View File

@@ -1087,12 +1087,25 @@ static int gs_can_close(struct net_device *netdev)
return 0;
}
static int gs_can_eth_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
static int gs_can_hwtstamp_get(struct net_device *netdev,
struct kernel_hwtstamp_config *cfg)
{
const struct gs_can *dev = netdev_priv(netdev);
if (dev->feature & GS_CAN_FEATURE_HW_TIMESTAMP)
return can_eth_ioctl_hwts(netdev, ifr, cmd);
return can_hwtstamp_get(netdev, cfg);
return -EOPNOTSUPP;
}
static int gs_can_hwtstamp_set(struct net_device *netdev,
struct kernel_hwtstamp_config *cfg,
struct netlink_ext_ack *extack)
{
const struct gs_can *dev = netdev_priv(netdev);
if (dev->feature & GS_CAN_FEATURE_HW_TIMESTAMP)
return can_hwtstamp_set(netdev, cfg, extack);
return -EOPNOTSUPP;
}
@@ -1101,7 +1114,8 @@ static const struct net_device_ops gs_usb_netdev_ops = {
.ndo_open = gs_can_open,
.ndo_stop = gs_can_close,
.ndo_start_xmit = gs_can_start_xmit,
.ndo_eth_ioctl = gs_can_eth_ioctl,
.ndo_hwtstamp_get = gs_can_hwtstamp_get,
.ndo_hwtstamp_set = gs_can_hwtstamp_set,
};
static int gs_usb_set_identify(struct net_device *netdev, bool do_identify)

3
drivers/net/can/usb/kvaser_usb/kvaser_usb_core.c
View File

@@ -784,8 +784,9 @@ static int kvaser_usb_set_phys_id(struct net_device *netdev,
static const struct net_device_ops kvaser_usb_netdev_ops = {
.ndo_open = kvaser_usb_open,
.ndo_stop = kvaser_usb_close,
.ndo_eth_ioctl = can_eth_ioctl_hwts,
.ndo_start_xmit = kvaser_usb_start_xmit,
.ndo_hwtstamp_get = can_hwtstamp_get,
.ndo_hwtstamp_set = can_hwtstamp_set,
};
static const struct ethtool_ops kvaser_usb_ethtool_ops = {

6
include/linux/can/dev.h
View File

@@ -129,7 +129,11 @@ void close_candev(struct net_device *dev);
void can_set_default_mtu(struct net_device *dev);
int __must_check can_set_static_ctrlmode(struct net_device *dev,
u32 static_mode);
int can_eth_ioctl_hwts(struct net_device *netdev, struct ifreq *ifr, int cmd);
int can_hwtstamp_get(struct net_device *netdev,
struct kernel_hwtstamp_config *cfg);
int can_hwtstamp_set(struct net_device *netdev,
struct kernel_hwtstamp_config *cfg,
struct netlink_ext_ack *extack);
int can_ethtool_op_get_ts_info_hwts(struct net_device *dev,
struct kernel_ethtool_ts_info *info);