net: macb: Convert to ndo_hwtstamp_get() and ndo_hwtstamp_set()

The hardware timestamping through ndo_eth_ioctl() is going away.
Convert the macb driver to the new API before that can be removed.

Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Author: kmaincent

drivers/net/ethernet/cadence/macb.h

@@ -1165,9 +1165,10 @@ struct macb_ptp_info {
 	int (*get_ts_info)(struct net_device *dev,
 			   struct ethtool_ts_info *info);
 	int (*get_hwtst)(struct net_device *netdev,
-			 struct ifreq *ifr);
+			 struct kernel_hwtstamp_config *tstamp_config);
 	int (*set_hwtst)(struct net_device *netdev,
-			 struct ifreq *ifr, int cmd);
+			 struct kernel_hwtstamp_config *tstamp_config,
+			 struct netlink_ext_ack *extack);
 };
 
 struct macb_pm_data {
@@ -1314,7 +1315,7 @@ struct macb {
 	struct ptp_clock *ptp_clock;
 	struct ptp_clock_info ptp_clock_info;
 	struct tsu_incr tsu_incr;
-	struct hwtstamp_config tstamp_config;
+	struct kernel_hwtstamp_config tstamp_config;
 
 	/* RX queue filer rule set*/
 	struct ethtool_rx_fs_list rx_fs_list;
@@ -1363,8 +1364,12 @@ static inline void gem_ptp_do_rxstamp(struct macb *bp, struct sk_buff *skb, stru
 
 	gem_ptp_rxstamp(bp, skb, desc);
 }
-int gem_get_hwtst(struct net_device *dev, struct ifreq *rq);
-int gem_set_hwtst(struct net_device *dev, struct ifreq *ifr, int cmd);
+
+int gem_get_hwtst(struct net_device *dev,
+		  struct kernel_hwtstamp_config *tstamp_config);
+int gem_set_hwtst(struct net_device *dev,
+		  struct kernel_hwtstamp_config *tstamp_config,
+		  struct netlink_ext_ack *extack);
 #else
 static inline void gem_ptp_init(struct net_device *ndev) { }
 static inline void gem_ptp_remove(struct net_device *ndev) { }

drivers/net/ethernet/cadence/macb_main.c

@@ -3773,18 +3773,38 @@ static int macb_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
 	if (!netif_running(dev))
 		return -EINVAL;
 
-	if (bp->ptp_info) {
-		switch (cmd) {
-		case SIOCSHWTSTAMP:
-			return bp->ptp_info->set_hwtst(dev, rq, cmd);
-		case SIOCGHWTSTAMP:
-			return bp->ptp_info->get_hwtst(dev, rq);
-		}
-	}
-
 	return phylink_mii_ioctl(bp->phylink, rq, cmd);
 }
 
+static int macb_hwtstamp_get(struct net_device *dev,
+			     struct kernel_hwtstamp_config *cfg)
+{
+	struct macb *bp = netdev_priv(dev);
+
+	if (!netif_running(dev))
+		return -EINVAL;
+
+	if (!bp->ptp_info)
+		return -EOPNOTSUPP;
+
+	return bp->ptp_info->get_hwtst(dev, cfg);
+}
+
+static int macb_hwtstamp_set(struct net_device *dev,
+			     struct kernel_hwtstamp_config *cfg,
+			     struct netlink_ext_ack *extack)
+{
+	struct macb *bp = netdev_priv(dev);
+
+	if (!netif_running(dev))
+		return -EINVAL;
+
+	if (!bp->ptp_info)
+		return -EOPNOTSUPP;
+
+	return bp->ptp_info->set_hwtst(dev, cfg, extack);
+}
+
 static inline void macb_set_txcsum_feature(struct macb *bp,
 					   netdev_features_t features)
 {
@@ -3884,6 +3904,8 @@ static const struct net_device_ops macb_netdev_ops = {
 #endif
 	.ndo_set_features	= macb_set_features,
 	.ndo_features_check	= macb_features_check,
+	.ndo_hwtstamp_set	= macb_hwtstamp_set,
+	.ndo_hwtstamp_get	= macb_hwtstamp_get,
 };
 
 /* Configure peripheral capabilities according to device tree
@@ -4539,6 +4561,8 @@ static const struct net_device_ops at91ether_netdev_ops = {
 #ifdef CONFIG_NET_POLL_CONTROLLER
 	.ndo_poll_controller	= at91ether_poll_controller,
 #endif
+	.ndo_hwtstamp_set	= macb_hwtstamp_set,
+	.ndo_hwtstamp_get	= macb_hwtstamp_get,
 };
 
 static int at91ether_clk_init(struct platform_device *pdev, struct clk **pclk,

drivers/net/ethernet/cadence/macb_ptp.c

@@ -374,19 +374,16 @@ static int gem_ptp_set_ts_mode(struct macb *bp,
 	return 0;
 }
 
-int gem_get_hwtst(struct net_device *dev, struct ifreq *rq)
+int gem_get_hwtst(struct net_device *dev,
+		  struct kernel_hwtstamp_config *tstamp_config)
 {
-	struct hwtstamp_config *tstamp_config;
 	struct macb *bp = netdev_priv(dev);
 
-	tstamp_config = &bp->tstamp_config;
+	*tstamp_config = bp->tstamp_config;
 	if ((bp->hw_dma_cap & HW_DMA_CAP_PTP) == 0)
 		return -EOPNOTSUPP;
 
-	if (copy_to_user(rq->ifr_data, tstamp_config, sizeof(*tstamp_config)))
-		return -EFAULT;
-	else
-		return 0;
+	return 0;
 }
 
 static void gem_ptp_set_one_step_sync(struct macb *bp, u8 enable)
@@ -401,22 +398,18 @@ static void gem_ptp_set_one_step_sync(struct macb *bp, u8 enable)
 		macb_writel(bp, NCR, reg_val & ~MACB_BIT(OSSMODE));
 }
 
-int gem_set_hwtst(struct net_device *dev, struct ifreq *ifr, int cmd)
+int gem_set_hwtst(struct net_device *dev,
+		  struct kernel_hwtstamp_config *tstamp_config,
+		  struct netlink_ext_ack *extack)
 {
 	enum macb_bd_control tx_bd_control = TSTAMP_DISABLED;
 	enum macb_bd_control rx_bd_control = TSTAMP_DISABLED;
-	struct hwtstamp_config *tstamp_config;
 	struct macb *bp = netdev_priv(dev);
 	u32 regval;
 
-	tstamp_config = &bp->tstamp_config;
 	if ((bp->hw_dma_cap & HW_DMA_CAP_PTP) == 0)
 		return -EOPNOTSUPP;
 
-	if (copy_from_user(tstamp_config, ifr->ifr_data,
-			   sizeof(*tstamp_config)))
-		return -EFAULT;
-
 	switch (tstamp_config->tx_type) {
 	case HWTSTAMP_TX_OFF:
 		break;
@@ -463,12 +456,11 @@ int gem_set_hwtst(struct net_device *dev, struct ifreq *ifr, int cmd)
 		return -ERANGE;
 	}
 
+	bp->tstamp_config = *tstamp_config;
+
 	if (gem_ptp_set_ts_mode(bp, tx_bd_control, rx_bd_control) != 0)
 		return -ERANGE;
 
-	if (copy_to_user(ifr->ifr_data, tstamp_config, sizeof(*tstamp_config)))
-		return -EFAULT;
-	else
-		return 0;
+	return 0;
 }