net: Add struct kernel_ethtool_ts_info

In prevision to add new UAPI for hwtstamp we will be limited to the struct
ethtool_ts_info that is currently passed in fixed binary format through the
ETHTOOL_GET_TS_INFO ethtool ioctl. It would be good if new kernel code
already started operating on an extensible kernel variant of that
structure, similar in concept to struct kernel_hwtstamp_config vs struct
hwtstamp_config.

Since struct ethtool_ts_info is in include/uapi/linux/ethtool.h, here
we introduce the kernel-only structure in include/linux/ethtool.h.
The manual copy is then made in the function called by ETHTOOL_GET_TS_INFO.

Acked-by: Shannon Nelson <shannon.nelson@amd.com>
Acked-by: Alexandra Winter <wintera@linux.ibm.com>
Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
Link: https://patch.msgid.link/20240709-feature_ptp_netnext-v17-6-b5317f50df2a@bootlin.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Author: kmaincent

drivers/net/bonding/bond_main.c

@@ -5755,10 +5755,10 @@ static void bond_ethtool_get_drvinfo(struct net_device *bond_dev,
 }
 
 static int bond_ethtool_get_ts_info(struct net_device *bond_dev,
-				    struct ethtool_ts_info *info)
+				    struct kernel_ethtool_ts_info *info)
 {
 	struct bonding *bond = netdev_priv(bond_dev);
-	struct ethtool_ts_info ts_info;
+	struct kernel_ethtool_ts_info ts_info;
 	struct net_device *real_dev;
 	bool sw_tx_support = false;
 	struct list_head *iter;

drivers/net/can/dev/dev.c

@@ -376,7 +376,7 @@ EXPORT_SYMBOL(can_eth_ioctl_hwts);
  * supporting hardware timestamps
  */
 int can_ethtool_op_get_ts_info_hwts(struct net_device *dev,
-				    struct ethtool_ts_info *info)
+				    struct kernel_ethtool_ts_info *info)
 {
 	info->so_timestamping =
 		SOF_TIMESTAMPING_TX_SOFTWARE |

drivers/net/can/peak_canfd/peak_canfd.c

@@ -777,7 +777,7 @@ static const struct net_device_ops peak_canfd_netdev_ops = {
 };
 
 static int peak_get_ts_info(struct net_device *dev,
-			    struct ethtool_ts_info *info)
+			    struct kernel_ethtool_ts_info *info)
 {
 	info->so_timestamping =
 		SOF_TIMESTAMPING_TX_SOFTWARE |

drivers/net/can/usb/gs_usb.c

@@ -1148,7 +1148,7 @@ static int gs_usb_set_phys_id(struct net_device *netdev,
 }
 
 static int gs_usb_get_ts_info(struct net_device *netdev,
-			      struct ethtool_ts_info *info)
+			      struct kernel_ethtool_ts_info *info)
 {
 	struct gs_can *dev = netdev_priv(netdev);
 

drivers/net/can/usb/peak_usb/pcan_usb_core.c

@@ -897,7 +897,7 @@ int peak_usb_set_eeprom(struct net_device *netdev,
 	return 0;
 }
 
-int pcan_get_ts_info(struct net_device *dev, struct ethtool_ts_info *info)
+int pcan_get_ts_info(struct net_device *dev, struct kernel_ethtool_ts_info *info)
 {
 	info->so_timestamping =
 		SOF_TIMESTAMPING_TX_SOFTWARE |

drivers/net/can/usb/peak_usb/pcan_usb_core.h

@@ -145,7 +145,7 @@ void peak_usb_get_ts_time(struct peak_time_ref *time_ref, u32 ts, ktime_t *tv);
 int peak_usb_netif_rx_64(struct sk_buff *skb, u32 ts_low, u32 ts_high);
 void peak_usb_async_complete(struct urb *urb);
 void peak_usb_restart_complete(struct peak_usb_device *dev);
-int pcan_get_ts_info(struct net_device *dev, struct ethtool_ts_info *info);
+int pcan_get_ts_info(struct net_device *dev, struct kernel_ethtool_ts_info *info);
 
 /* common 32-bit CAN channel ID ethtool management */
 int peak_usb_get_eeprom_len(struct net_device *netdev);

drivers/net/dsa/hirschmann/hellcreek_hwtstamp.c

@@ -16,7 +16,7 @@
 #include "hellcreek_ptp.h"
 
 int hellcreek_get_ts_info(struct dsa_switch *ds, int port,
-			  struct ethtool_ts_info *info)
+			  struct kernel_ethtool_ts_info *info)
 {
 	struct hellcreek *hellcreek = ds->priv;
 

drivers/net/dsa/hirschmann/hellcreek_hwtstamp.h

@@ -48,7 +48,7 @@ void hellcreek_port_txtstamp(struct dsa_switch *ds, int port,
 			     struct sk_buff *skb);
 
 int hellcreek_get_ts_info(struct dsa_switch *ds, int port,
-			  struct ethtool_ts_info *info);
+			  struct kernel_ethtool_ts_info *info);
 
 long hellcreek_hwtstamp_work(struct ptp_clock_info *ptp);
 

drivers/net/dsa/microchip/ksz_ptp.c

@@ -293,7 +293,7 @@ static int ksz_ptp_enable_mode(struct ksz_device *dev)
 /* The function is return back the capability of timestamping feature when
  * requested through ethtool -T <interface> utility
  */
-int ksz_get_ts_info(struct dsa_switch *ds, int port, struct ethtool_ts_info *ts)
+int ksz_get_ts_info(struct dsa_switch *ds, int port, struct kernel_ethtool_ts_info *ts)
 {
 	struct ksz_device *dev = ds->priv;
 	struct ksz_ptp_data *ptp_data;

drivers/net/dsa/microchip/ksz_ptp.h

@@ -38,7 +38,7 @@ int ksz_ptp_clock_register(struct dsa_switch *ds);
 void ksz_ptp_clock_unregister(struct dsa_switch *ds);
 
 int ksz_get_ts_info(struct dsa_switch *ds, int port,
-		    struct ethtool_ts_info *ts);
+		    struct kernel_ethtool_ts_info *ts);
 int ksz_hwtstamp_get(struct dsa_switch *ds, int port, struct ifreq *ifr);
 int ksz_hwtstamp_set(struct dsa_switch *ds, int port, struct ifreq *ifr);
 void ksz_port_txtstamp(struct dsa_switch *ds, int port, struct sk_buff *skb);