sfc: Implement ndo_hwtstamp_(get|set)

Update efx->ptp_data to use kernel_hwtstamp_config and implement
ndo_hwtstamp_(get|set). Remove SIOCGHWTSTAMP and SIOCSHWTSTAMP from
efx_ioctl.
Signed-off-by: Alex Austin <alex.austin@amd.com>
Acked-by: Martin Habets <habetsm.xilinx@gmail.com>
Reviewed-by: Edward Cree <ecree.xilinx@gmail.com>
Link: https://lore.kernel.org/r/20231130135826.19018-2-alex.austin@amd.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>

drivers/net/ethernet/sfc/ef10.c

@@ -3706,13 +3706,13 @@ static int efx_ef10_ptp_set_ts_sync_events(struct efx_nic *efx, bool en,
 }
 
 static int efx_ef10_ptp_set_ts_config_vf(struct efx_nic *efx,
-					 struct hwtstamp_config *init)
+					 struct kernel_hwtstamp_config *init)
 {
 	return -EOPNOTSUPP;
 }
 
 static int efx_ef10_ptp_set_ts_config(struct efx_nic *efx,
-				      struct hwtstamp_config *init)
+				      struct kernel_hwtstamp_config *init)
 {
 	int rc;
 

drivers/net/ethernet/sfc/efx.c

@@ -495,11 +495,6 @@ static int efx_ioctl(struct net_device *net_dev, struct ifreq *ifr, int cmd)
 	struct efx_nic *efx = efx_netdev_priv(net_dev);
 	struct mii_ioctl_data *data = if_mii(ifr);
 
-	if (cmd == SIOCSHWTSTAMP)
-		return efx_ptp_set_ts_config(efx, ifr);
-	if (cmd == SIOCGHWTSTAMP)
-		return efx_ptp_get_ts_config(efx, ifr);
-
 	/* Convert phy_id from older PRTAD/DEVAD format */
 	if ((cmd == SIOCGMIIREG || cmd == SIOCSMIIREG) &&
 	    (data->phy_id & 0xfc00) == 0x0400)
@@ -581,6 +576,23 @@ static int efx_vlan_rx_kill_vid(struct net_device *net_dev, __be16 proto, u16 vi
 		return -EOPNOTSUPP;
 }
 
+static int efx_hwtstamp_set(struct net_device *net_dev,
+			    struct kernel_hwtstamp_config *config,
+			    struct netlink_ext_ack *extack)
+{
+	struct efx_nic *efx = efx_netdev_priv(net_dev);
+
+	return efx_ptp_set_ts_config(efx, config, extack);
+}
+
+static int efx_hwtstamp_get(struct net_device *net_dev,
+			    struct kernel_hwtstamp_config *config)
+{
+	struct efx_nic *efx = efx_netdev_priv(net_dev);
+
+	return efx_ptp_get_ts_config(efx, config);
+}
+
 static const struct net_device_ops efx_netdev_ops = {
 	.ndo_open		= efx_net_open,
 	.ndo_stop		= efx_net_stop,
@@ -596,6 +608,8 @@ static const struct net_device_ops efx_netdev_ops = {
 	.ndo_features_check	= efx_features_check,
 	.ndo_vlan_rx_add_vid	= efx_vlan_rx_add_vid,
 	.ndo_vlan_rx_kill_vid	= efx_vlan_rx_kill_vid,
+	.ndo_hwtstamp_set	= efx_hwtstamp_set,
+	.ndo_hwtstamp_get	= efx_hwtstamp_get,
 #ifdef CONFIG_SFC_SRIOV
 	.ndo_set_vf_mac		= efx_sriov_set_vf_mac,
 	.ndo_set_vf_vlan	= efx_sriov_set_vf_vlan,

drivers/net/ethernet/sfc/net_driver.h

@@ -1473,7 +1473,7 @@ struct efx_nic_type {
 	void (*ptp_write_host_time)(struct efx_nic *efx, u32 host_time);
 	int (*ptp_set_ts_sync_events)(struct efx_nic *efx, bool en, bool temp);
 	int (*ptp_set_ts_config)(struct efx_nic *efx,
-				 struct hwtstamp_config *init);
+				 struct kernel_hwtstamp_config *init);
 	int (*sriov_configure)(struct efx_nic *efx, int num_vfs);
 	int (*vlan_rx_add_vid)(struct efx_nic *efx, __be16 proto, u16 vid);
 	int (*vlan_rx_kill_vid)(struct efx_nic *efx, __be16 proto, u16 vid);

drivers/net/ethernet/sfc/ptp.c

@@ -301,7 +301,7 @@ struct efx_ptp_data {
 	bool reset_required;
 	struct list_head rxfilters_mcast;
 	struct list_head rxfilters_ucast;
-	struct hwtstamp_config config;
+	struct kernel_hwtstamp_config config;
 	bool enabled;
 	unsigned int mode;
 	void (*ns_to_nic_time)(s64 ns, u32 *nic_major, u32 *nic_minor);
@@ -1848,7 +1848,7 @@ int efx_ptp_change_mode(struct efx_nic *efx, bool enable_wanted,
 	return 0;
 }
 
-static int efx_ptp_ts_init(struct efx_nic *efx, struct hwtstamp_config *init)
+static int efx_ptp_ts_init(struct efx_nic *efx, struct kernel_hwtstamp_config *init)
 {
 	int rc;
 
@@ -1895,33 +1895,25 @@ void efx_ptp_get_ts_info(struct efx_nic *efx, struct ethtool_ts_info *ts_info)
 	ts_info->rx_filters = ptp->efx->type->hwtstamp_filters;
 }
 
-int efx_ptp_set_ts_config(struct efx_nic *efx, struct ifreq *ifr)
+int efx_ptp_set_ts_config(struct efx_nic *efx,
+			  struct kernel_hwtstamp_config *config,
+			  struct netlink_ext_ack __always_unused *extack)
 {
-	struct hwtstamp_config config;
-	int rc;
-
 	/* Not a PTP enabled port */
 	if (!efx->ptp_data)
 		return -EOPNOTSUPP;
 
-	if (copy_from_user(&config, ifr->ifr_data, sizeof(config)))
-		return -EFAULT;
-
-	rc = efx_ptp_ts_init(efx, &config);
-	if (rc != 0)
-		return rc;
-
-	return copy_to_user(ifr->ifr_data, &config, sizeof(config))
-		? -EFAULT : 0;
+	return efx_ptp_ts_init(efx, config);
 }
 
-int efx_ptp_get_ts_config(struct efx_nic *efx, struct ifreq *ifr)
+int efx_ptp_get_ts_config(struct efx_nic *efx,
+			  struct kernel_hwtstamp_config *config)
 {
+	/* Not a PTP enabled port */
 	if (!efx->ptp_data)
 		return -EOPNOTSUPP;
-
-	return copy_to_user(ifr->ifr_data, &efx->ptp_data->config,
-			    sizeof(efx->ptp_data->config)) ? -EFAULT : 0;
+	*config = efx->ptp_data->config;
+	return 0;
 }
 
 static void ptp_event_failure(struct efx_nic *efx, int expected_frag_len)

drivers/net/ethernet/sfc/ptp.h

@@ -18,8 +18,11 @@ void efx_ptp_defer_probe_with_channel(struct efx_nic *efx);
 struct efx_channel *efx_ptp_channel(struct efx_nic *efx);
 void efx_ptp_update_channel(struct efx_nic *efx, struct efx_channel *channel);
 void efx_ptp_remove(struct efx_nic *efx);
-int efx_ptp_set_ts_config(struct efx_nic *efx, struct ifreq *ifr);
-int efx_ptp_get_ts_config(struct efx_nic *efx, struct ifreq *ifr);
+int efx_ptp_set_ts_config(struct efx_nic *efx,
+			  struct kernel_hwtstamp_config *config,
+			  struct netlink_ext_ack *extack);
+int efx_ptp_get_ts_config(struct efx_nic *efx,
+			  struct kernel_hwtstamp_config *config);
 void efx_ptp_get_ts_info(struct efx_nic *efx, struct ethtool_ts_info *ts_info);
 bool efx_ptp_is_ptp_tx(struct efx_nic *efx, struct sk_buff *skb);
 int efx_ptp_get_mode(struct efx_nic *efx);