lan743x: lan743x: Add PTP support

PTP support includes:
    Ingress, and egress timestamping.
    One step timestamping available.
    PTP clock support.
    Periodic output support.
Signed-off-by: NBryan Whitehead <Bryan.Whitehead@microchip.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/microchip/Makefile

@@ -6,4 +6,4 @@ obj-$(CONFIG_ENC28J60) += enc28j60.o
 obj-$(CONFIG_ENCX24J600) += encx24j600.o encx24j600-regmap.o
 obj-$(CONFIG_LAN743X) += lan743x.o
 
-lan743x-objs := lan743x_main.o lan743x_ethtool.o
+lan743x-objs := lan743x_main.o lan743x_ethtool.o lan743x_ptp.o

drivers/net/ethernet/microchip/lan743x_ethtool.c

@@ -4,6 +4,7 @@
 #include <linux/netdevice.h>
 #include "lan743x_main.h"
 #include "lan743x_ethtool.h"
+#include <linux/net_tstamp.h>
 #include <linux/pci.h>
 #include <linux/phy.h>
 
@@ -542,6 +543,31 @@ static int lan743x_ethtool_set_rxfh(struct net_device *netdev,
 	return 0;
 }
 
+static int lan743x_ethtool_get_ts_info(struct net_device *netdev,
+				       struct ethtool_ts_info *ts_info)
+{
+	struct lan743x_adapter *adapter = netdev_priv(netdev);
+
+	ts_info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE |
+				   SOF_TIMESTAMPING_RX_SOFTWARE |
+				   SOF_TIMESTAMPING_SOFTWARE |
+				   SOF_TIMESTAMPING_TX_HARDWARE |
+				   SOF_TIMESTAMPING_RX_HARDWARE |
+				   SOF_TIMESTAMPING_RAW_HARDWARE;
+
+	if (adapter->ptp.ptp_clock)
+		ts_info->phc_index = ptp_clock_index(adapter->ptp.ptp_clock);
+	else
+		ts_info->phc_index = -1;
+
+	ts_info->tx_types = BIT(HWTSTAMP_TX_OFF) |
+			    BIT(HWTSTAMP_TX_ON) |
+			    BIT(HWTSTAMP_TX_ONESTEP_SYNC);
+	ts_info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) |
+			      BIT(HWTSTAMP_FILTER_ALL);
+	return 0;
+}
+
 static int lan743x_ethtool_get_eee(struct net_device *netdev,
 				   struct ethtool_eee *eee)
 {
@@ -685,6 +711,7 @@ const struct ethtool_ops lan743x_ethtool_ops = {
 	.get_rxfh_indir_size = lan743x_ethtool_get_rxfh_indir_size,
 	.get_rxfh = lan743x_ethtool_get_rxfh,
 	.set_rxfh = lan743x_ethtool_set_rxfh,
+	.get_ts_info = lan743x_ethtool_get_ts_info,
 	.get_eee = lan743x_ethtool_get_eee,
 	.set_eee = lan743x_ethtool_set_eee,
 	.get_link_ksettings = phy_ethtool_get_link_ksettings,

drivers/net/ethernet/microchip/lan743x_main.c

@@ -267,6 +267,10 @@ static void lan743x_intr_shared_isr(void *context, u32 int_sts, u32 flags)
 			lan743x_intr_software_isr(adapter);
 			int_sts &= ~INT_BIT_SW_GP_;
 		}
+		if (int_sts & INT_BIT_1588_) {
+			lan743x_ptp_isr(adapter);
+			int_sts &= ~INT_BIT_1588_;
+		}
 	}
 	if (int_sts)
 		lan743x_csr_write(adapter, INT_EN_CLR, int_sts);
@@ -976,6 +980,7 @@ static void lan743x_phy_link_status_change(struct net_device *netdev)
 					       ksettings.base.duplex,
 					       local_advertisement,
 					       remote_advertisement);
+		lan743x_ptp_update_latency(adapter, ksettings.base.speed);
 	}
 }
 
@@ -1226,6 +1231,7 @@ static void lan743x_tx_release_desc(struct lan743x_tx *tx,
 	struct lan743x_tx_buffer_info *buffer_info = NULL;
 	struct lan743x_tx_descriptor *descriptor = NULL;
 	u32 descriptor_type = 0;
+	bool ignore_sync;
 
 	descriptor = &tx->ring_cpu_ptr[descriptor_index];
 	buffer_info = &tx->buffer_info[descriptor_index];
@@ -1256,11 +1262,27 @@ static void lan743x_tx_release_desc(struct lan743x_tx *tx,
 		buffer_info->dma_ptr = 0;
 		buffer_info->buffer_length = 0;
 	}
-	if (buffer_info->skb) {
+	if (!buffer_info->skb)
+		goto clear_active;
+
+	if (!(buffer_info->flags & TX_BUFFER_INFO_FLAG_TIMESTAMP_REQUESTED)) {
 		dev_kfree_skb(buffer_info->skb);
-		buffer_info->skb = NULL;
+		goto clear_skb;
+	}
+
+	if (cleanup) {
+		lan743x_ptp_unrequest_tx_timestamp(tx->adapter);
+		dev_kfree_skb(buffer_info->skb);
+	} else {
+		ignore_sync = (buffer_info->flags &
+			       TX_BUFFER_INFO_FLAG_IGNORE_SYNC) != 0;
+		lan743x_ptp_tx_timestamp_skb(tx->adapter,
+					     buffer_info->skb, ignore_sync);
 	}
 
+clear_skb:
+	buffer_info->skb = NULL;
+
 clear_active:
 	buffer_info->flags &= ~TX_BUFFER_INFO_FLAG_ACTIVE;
 
@@ -1321,10 +1343,25 @@ static int lan743x_tx_get_avail_desc(struct lan743x_tx *tx)
 		return last_head - last_tail - 1;
 }
 
+void lan743x_tx_set_timestamping_mode(struct lan743x_tx *tx,
+				      bool enable_timestamping,
+				      bool enable_onestep_sync)
+{
+	if (enable_timestamping)
+		tx->ts_flags |= TX_TS_FLAG_TIMESTAMPING_ENABLED;
+	else
+		tx->ts_flags &= ~TX_TS_FLAG_TIMESTAMPING_ENABLED;
+	if (enable_onestep_sync)
+		tx->ts_flags |= TX_TS_FLAG_ONE_STEP_SYNC;
+	else
+		tx->ts_flags &= ~TX_TS_FLAG_ONE_STEP_SYNC;
+}
+
 static int lan743x_tx_frame_start(struct lan743x_tx *tx,
 				  unsigned char *first_buffer,
 				  unsigned int first_buffer_length,
 				  unsigned int frame_length,
+				  bool time_stamp,
 				  bool check_sum)
 {
 	/* called only from within lan743x_tx_xmit_frame.
@@ -1362,6 +1399,8 @@ static int lan743x_tx_frame_start(struct lan743x_tx *tx,
 		TX_DESC_DATA0_DTYPE_DATA_ |
 		TX_DESC_DATA0_FS_ |
 		TX_DESC_DATA0_FCS_;
+	if (time_stamp)
+		tx->frame_data0 |= TX_DESC_DATA0_TSE_;
 
 	if (check_sum)
 		tx->frame_data0 |= TX_DESC_DATA0_ICE_ |
@@ -1475,6 +1514,7 @@ static int lan743x_tx_frame_add_fragment(struct lan743x_tx *tx,
 
 static void lan743x_tx_frame_end(struct lan743x_tx *tx,
 				 struct sk_buff *skb,
+				 bool time_stamp,
 				 bool ignore_sync)
 {
 	/* called only from within lan743x_tx_xmit_frame
@@ -1492,6 +1532,8 @@ static void lan743x_tx_frame_end(struct lan743x_tx *tx,
 	tx_descriptor = &tx->ring_cpu_ptr[tx->frame_tail];
 	buffer_info = &tx->buffer_info[tx->frame_tail];
 	buffer_info->skb = skb;
+	if (time_stamp)
+		buffer_info->flags |= TX_BUFFER_INFO_FLAG_TIMESTAMP_REQUESTED;
 	if (ignore_sync)
 		buffer_info->flags |= TX_BUFFER_INFO_FLAG_IGNORE_SYNC;
 
@@ -1520,6 +1562,7 @@ static netdev_tx_t lan743x_tx_xmit_frame(struct lan743x_tx *tx,
 	unsigned int frame_length = 0;
 	unsigned int head_length = 0;
 	unsigned long irq_flags = 0;
+	bool do_timestamp = false;
 	bool ignore_sync = false;
 	int nr_frags = 0;
 	bool gso = false;
@@ -1541,6 +1584,14 @@ static netdev_tx_t lan743x_tx_xmit_frame(struct lan743x_tx *tx,
 	}
 
 	/* space available, transmit skb  */
+	if ((skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP) &&
+	    (tx->ts_flags & TX_TS_FLAG_TIMESTAMPING_ENABLED) &&
+	    (lan743x_ptp_request_tx_timestamp(tx->adapter))) {
+		skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS;
+		do_timestamp = true;
+		if (tx->ts_flags & TX_TS_FLAG_ONE_STEP_SYNC)
+			ignore_sync = true;
+	}
 	head_length = skb_headlen(skb);
 	frame_length = skb_pagelen(skb);
 	nr_frags = skb_shinfo(skb)->nr_frags;
@@ -1554,6 +1605,7 @@ static netdev_tx_t lan743x_tx_xmit_frame(struct lan743x_tx *tx,
 	if (lan743x_tx_frame_start(tx,
 				   skb->data, head_length,
 				   start_frame_length,
+				   do_timestamp,
 				   skb->ip_summed == CHECKSUM_PARTIAL)) {
 		dev_kfree_skb(skb);
 		goto unlock;
@@ -1581,7 +1633,7 @@ static netdev_tx_t lan743x_tx_xmit_frame(struct lan743x_tx *tx,
 	}
 
 finish:
-	lan743x_tx_frame_end(tx, skb, ignore_sync);
+	lan743x_tx_frame_end(tx, skb, do_timestamp, ignore_sync);
 
 unlock:
 	spin_unlock_irqrestore(&tx->ring_lock, irq_flags);
@@ -2410,6 +2462,8 @@ static int lan743x_netdev_close(struct net_device *netdev)
 	for (index = 0; index < LAN743X_USED_RX_CHANNELS; index++)
 		lan743x_rx_close(&adapter->rx[index]);
 
+	lan743x_ptp_close(adapter);
+
 	lan743x_phy_close(adapter);
 
 	lan743x_mac_close(adapter);
@@ -2437,6 +2491,10 @@ static int lan743x_netdev_open(struct net_device *netdev)
 	if (ret)
 		goto close_mac;
 
+	ret = lan743x_ptp_open(adapter);
+	if (ret)
+		goto close_phy;
+
 	lan743x_rfe_open(adapter);
 
 	for (index = 0; index < LAN743X_USED_RX_CHANNELS; index++) {
@@ -2456,6 +2514,9 @@ static int lan743x_netdev_open(struct net_device *netdev)
 		if (adapter->rx[index].ring_cpu_ptr)
 			lan743x_rx_close(&adapter->rx[index]);
 	}
+	lan743x_ptp_close(adapter);
+
+close_phy:
 	lan743x_phy_close(adapter);
 
 close_mac:
@@ -2483,6 +2544,8 @@ static int lan743x_netdev_ioctl(struct net_device *netdev,
 {
 	if (!netif_running(netdev))
 		return -EINVAL;
+	if (cmd == SIOCSHWTSTAMP)
+		return lan743x_ptp_ioctl(netdev, ifr, cmd);
 	return phy_mii_ioctl(netdev->phydev, ifr, cmd);
 }
 
@@ -2607,6 +2670,11 @@ static int lan743x_hardware_init(struct lan743x_adapter *adapter,
 	adapter->intr.irq = adapter->pdev->irq;
 	lan743x_csr_write(adapter, INT_EN_CLR, 0xFFFFFFFF);
 	mutex_init(&adapter->dp_lock);
+
+	ret = lan743x_gpio_init(adapter);
+	if (ret)
+		return ret;
+
 	ret = lan743x_mac_init(adapter);
 	if (ret)
 		return ret;
@@ -2615,6 +2683,10 @@ static int lan743x_hardware_init(struct lan743x_adapter *adapter,
 	if (ret)
 		return ret;
 
+	ret = lan743x_ptp_init(adapter);
+	if (ret)
+		return ret;
+
 	lan743x_rfe_update_mac_address(adapter);
 
 	ret = lan743x_dmac_init(adapter);

drivers/net/ethernet/microchip/lan743x_main.h

@@ -4,12 +4,17 @@
 #ifndef _LAN743X_H
 #define _LAN743X_H
 
+#include "lan743x_ptp.h"
+
 #define DRIVER_AUTHOR   "Bryan Whitehead <Bryan.Whitehead@microchip.com>"
 #define DRIVER_DESC "LAN743x PCIe Gigabit Ethernet Driver"
 #define DRIVER_NAME "lan743x"
 
 /* Register Definitions */
 #define ID_REV				(0x00)
+#define ID_REV_ID_MASK_			(0xFFFF0000)
+#define ID_REV_ID_LAN7430_		(0x74300000)
+#define ID_REV_ID_LAN7431_		(0x74310000)
 #define ID_REV_IS_VALID_CHIP_ID_(id_rev)	\
 	(((id_rev) & 0xFFF00000) == 0x74300000)
 #define ID_REV_CHIP_REV_MASK_		(0x0000FFFF)
@@ -62,6 +67,21 @@
 
 #define E2P_DATA			(0x044)
 
+#define GPIO_CFG0			(0x050)
+#define GPIO_CFG0_GPIO_DIR_BIT_(bit)	BIT(16 + (bit))
+#define GPIO_CFG0_GPIO_DATA_BIT_(bit)	BIT(0 + (bit))
+
+#define GPIO_CFG1			(0x054)
+#define GPIO_CFG1_GPIOEN_BIT_(bit)	BIT(16 + (bit))
+#define GPIO_CFG1_GPIOBUF_BIT_(bit)	BIT(0 + (bit))
+
+#define GPIO_CFG2			(0x058)
+#define GPIO_CFG2_1588_POL_BIT_(bit)	BIT(0 + (bit))
+
+#define GPIO_CFG3			(0x05C)
+#define GPIO_CFG3_1588_CH_SEL_BIT_(bit)	BIT(16 + (bit))
+#define GPIO_CFG3_1588_OE_BIT_(bit)	BIT(0 + (bit))
+
 #define FCT_RX_CTL			(0xAC)
 #define FCT_RX_CTL_EN_(channel)		BIT(28 + (channel))
 #define FCT_RX_CTL_DIS_(channel)	BIT(24 + (channel))
@@ -193,7 +213,8 @@
 #define INT_BIT_DMA_TX_(channel)	BIT(16 + (channel))
 #define INT_BIT_ALL_TX_			(0x000F0000)
 #define INT_BIT_SW_GP_			BIT(9)
-#define INT_BIT_ALL_OTHER_		(0x00000280)
+#define INT_BIT_1588_			BIT(7)
+#define INT_BIT_ALL_OTHER_		(INT_BIT_SW_GP_ | INT_BIT_1588_)
 #define INT_BIT_MAS_			BIT(0)
 
 #define INT_SET				(0x784)
@@ -234,6 +255,71 @@
 #define INT_MOD_CFG6			(0x7D8)
 #define INT_MOD_CFG7			(0x7DC)
 
+#define PTP_CMD_CTL					(0x0A00)
+#define PTP_CMD_CTL_PTP_CLK_STP_NSEC_			BIT(6)
+#define PTP_CMD_CTL_PTP_CLOCK_STEP_SEC_			BIT(5)
+#define PTP_CMD_CTL_PTP_CLOCK_LOAD_			BIT(4)
+#define PTP_CMD_CTL_PTP_CLOCK_READ_			BIT(3)
+#define PTP_CMD_CTL_PTP_ENABLE_				BIT(2)
+#define PTP_CMD_CTL_PTP_DISABLE_			BIT(1)
+#define PTP_CMD_CTL_PTP_RESET_				BIT(0)
+#define PTP_GENERAL_CONFIG				(0x0A04)
+#define PTP_GENERAL_CONFIG_CLOCK_EVENT_X_MASK_(channel) \
+	(0x7 << (1 + ((channel) << 2)))
+#define PTP_GENERAL_CONFIG_CLOCK_EVENT_100NS_	(0)
+#define PTP_GENERAL_CONFIG_CLOCK_EVENT_10US_	(1)
+#define PTP_GENERAL_CONFIG_CLOCK_EVENT_100US_	(2)
+#define PTP_GENERAL_CONFIG_CLOCK_EVENT_1MS_	(3)
+#define PTP_GENERAL_CONFIG_CLOCK_EVENT_10MS_	(4)
+#define PTP_GENERAL_CONFIG_CLOCK_EVENT_200MS_	(5)
+#define PTP_GENERAL_CONFIG_CLOCK_EVENT_X_SET_(channel, value) \
+	(((value) & 0x7) << (1 + ((channel) << 2)))
+#define PTP_GENERAL_CONFIG_RELOAD_ADD_X_(channel)	(BIT((channel) << 2))
+
+#define PTP_INT_STS				(0x0A08)
+#define PTP_INT_EN_SET				(0x0A0C)
+#define PTP_INT_EN_CLR				(0x0A10)
+#define PTP_INT_BIT_TX_SWTS_ERR_		BIT(13)
+#define PTP_INT_BIT_TX_TS_			BIT(12)
+#define PTP_INT_BIT_TIMER_B_			BIT(1)
+#define PTP_INT_BIT_TIMER_A_			BIT(0)
+
+#define PTP_CLOCK_SEC				(0x0A14)
+#define PTP_CLOCK_NS				(0x0A18)
+#define PTP_CLOCK_SUBNS				(0x0A1C)
+#define PTP_CLOCK_RATE_ADJ			(0x0A20)
+#define PTP_CLOCK_RATE_ADJ_DIR_			BIT(31)
+#define PTP_CLOCK_STEP_ADJ			(0x0A2C)
+#define PTP_CLOCK_STEP_ADJ_DIR_			BIT(31)
+#define PTP_CLOCK_STEP_ADJ_VALUE_MASK_		(0x3FFFFFFF)
+#define PTP_CLOCK_TARGET_SEC_X(channel)		(0x0A30 + ((channel) << 4))
+#define PTP_CLOCK_TARGET_NS_X(channel)		(0x0A34 + ((channel) << 4))
+#define PTP_CLOCK_TARGET_RELOAD_SEC_X(channel)	(0x0A38 + ((channel) << 4))
+#define PTP_CLOCK_TARGET_RELOAD_NS_X(channel)	(0x0A3C + ((channel) << 4))
+#define PTP_LATENCY				(0x0A5C)
+#define PTP_LATENCY_TX_SET_(tx_latency)		(((u32)(tx_latency)) << 16)
+#define PTP_LATENCY_RX_SET_(rx_latency)		\
+	(((u32)(rx_latency)) & 0x0000FFFF)
+#define PTP_CAP_INFO				(0x0A60)
+#define PTP_CAP_INFO_TX_TS_CNT_GET_(reg_val)	(((reg_val) & 0x00000070) >> 4)
+
+#define PTP_TX_MOD				(0x0AA4)
+#define PTP_TX_MOD_TX_PTP_SYNC_TS_INSERT_	(0x10000000)
+
+#define PTP_TX_MOD2				(0x0AA8)
+#define PTP_TX_MOD2_TX_PTP_CLR_UDPV4_CHKSUM_	(0x00000001)
+
+#define PTP_TX_EGRESS_SEC			(0x0AAC)
+#define PTP_TX_EGRESS_NS			(0x0AB0)
+#define PTP_TX_EGRESS_NS_CAPTURE_CAUSE_MASK_	(0xC0000000)
+#define PTP_TX_EGRESS_NS_CAPTURE_CAUSE_AUTO_	(0x00000000)
+#define PTP_TX_EGRESS_NS_CAPTURE_CAUSE_SW_	(0x40000000)
+#define PTP_TX_EGRESS_NS_TS_NS_MASK_		(0x3FFFFFFF)
+
+#define PTP_TX_MSG_HEADER			(0x0AB4)
+#define PTP_TX_MSG_HEADER_MSG_TYPE_		(0x000F0000)
+#define PTP_TX_MSG_HEADER_MSG_TYPE_SYNC_	(0x00000000)
+
 #define DMAC_CFG				(0xC00)
 #define DMAC_CFG_COAL_EN_			BIT(16)
 #define DMAC_CFG_CH_ARB_SEL_RX_HIGH_		(0x00000000)
@@ -542,8 +628,12 @@ struct lan743x_tx_buffer_info;
 
 #define TX_FRAME_FLAG_IN_PROGRESS	BIT(0)
 
+#define TX_TS_FLAG_TIMESTAMPING_ENABLED	BIT(0)
+#define TX_TS_FLAG_ONE_STEP_SYNC	BIT(1)
+
 struct lan743x_tx {
 	struct lan743x_adapter *adapter;
+	u32	ts_flags;
 	u32	vector_flags;
 	int	channel_number;
 
@@ -570,6 +660,10 @@ struct lan743x_tx {
 	struct sk_buff *overflow_skb;
 };
 
+void lan743x_tx_set_timestamping_mode(struct lan743x_tx *tx,
+				      bool enable_timestamping,
+				      bool enable_onestep_sync);
+
 /* RX */
 struct lan743x_rx_descriptor;
 struct lan743x_rx_buffer_info;
@@ -610,6 +704,9 @@ struct lan743x_adapter {
 	/* lock, used to prevent concurrent access to data port */
 	struct mutex		dp_lock;
 
+	struct lan743x_gpio	gpio;
+	struct lan743x_ptp	ptp;
+
 	u8			mac_address[ETH_ALEN];
 
 	struct lan743x_phy      phy;
@@ -660,6 +757,7 @@ struct lan743x_adapter {
 #define TX_DESC_DATA0_IPE_			(0x00200000)
 #define TX_DESC_DATA0_TPE_			(0x00100000)
 #define TX_DESC_DATA0_FCS_			(0x00020000)
+#define TX_DESC_DATA0_TSE_			(0x00010000)
 #define TX_DESC_DATA0_BUF_LENGTH_MASK_		(0x0000FFFF)
 #define TX_DESC_DATA0_EXT_LSO_			(0x00200000)
 #define TX_DESC_DATA0_EXT_PAY_LENGTH_MASK_	(0x000FFFFF)
@@ -673,6 +771,7 @@ struct lan743x_tx_descriptor {
 } __aligned(DEFAULT_DMA_DESCRIPTOR_SPACING);
 
 #define TX_BUFFER_INFO_FLAG_ACTIVE		BIT(0)
+#define TX_BUFFER_INFO_FLAG_TIMESTAMP_REQUESTED	BIT(1)
 #define TX_BUFFER_INFO_FLAG_IGNORE_SYNC		BIT(2)
 #define TX_BUFFER_INFO_FLAG_SKB_FRAGMENT	BIT(3)
 struct lan743x_tx_buffer_info {

drivers/net/ethernet/microchip/lan743x_ptp.h

+/* SPDX-License-Identifier: GPL-2.0+ */
+/* Copyright (C) 2018 Microchip Technology Inc. */
+
+#ifndef _LAN743X_PTP_H
+#define _LAN743X_PTP_H
+
+#include "linux/ptp_clock_kernel.h"
+#include "linux/netdevice.h"
+
+struct lan743x_adapter;
+
+/* GPIO */
+struct lan743x_gpio {
+	/* gpio_lock: used to prevent concurrent access to gpio settings */
+	spinlock_t gpio_lock;
+
+	int used_bits;
+	int output_bits;
+	int ptp_bits;
+	u32 gpio_cfg0;
+	u32 gpio_cfg1;
+	u32 gpio_cfg2;
+	u32 gpio_cfg3;
+};
+
+int lan743x_gpio_init(struct lan743x_adapter *adapter);
+
+void lan743x_ptp_isr(void *context);
+bool lan743x_ptp_request_tx_timestamp(struct lan743x_adapter *adapter);
+void lan743x_ptp_unrequest_tx_timestamp(struct lan743x_adapter *adapter);
+void lan743x_ptp_tx_timestamp_skb(struct lan743x_adapter *adapter,
+				  struct sk_buff *skb, bool ignore_sync);
+int lan743x_ptp_init(struct lan743x_adapter *adapter);
+int lan743x_ptp_open(struct lan743x_adapter *adapter);
+void lan743x_ptp_close(struct lan743x_adapter *adapter);
+void lan743x_ptp_update_latency(struct lan743x_adapter *adapter,
+				u32 link_speed);
+
+int lan743x_ptp_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd);
+
+#define LAN743X_PTP_NUMBER_OF_TX_TIMESTAMPS (4)
+
+#define PTP_FLAG_PTP_CLOCK_REGISTERED	BIT(1)
+#define PTP_FLAG_ISR_ENABLED			BIT(2)
+
+struct lan743x_ptp {
+	int flags;
+
+	/* command_lock: used to prevent concurrent ptp commands */
+	struct mutex	command_lock;
+
+#ifdef CONFIG_PTP_1588_CLOCK
+	struct ptp_clock *ptp_clock;
+	struct ptp_clock_info ptp_clock_info;
+	struct ptp_pin_desc pin_config[1];
+#endif /* CONFIG_PTP_1588_CLOCK */
+
+#define LAN743X_PTP_NUMBER_OF_EVENT_CHANNELS (2)
+	unsigned long used_event_ch;
+
+	int perout_event_ch;
+	int perout_gpio_bit;
+
+	/* tx_ts_lock: used to prevent concurrent access to timestamp arrays */
+	spinlock_t	tx_ts_lock;
+	int pending_tx_timestamps;
+	struct sk_buff *tx_ts_skb_queue[LAN743X_PTP_NUMBER_OF_TX_TIMESTAMPS];
+	unsigned int	tx_ts_ignore_sync_queue;
+	int tx_ts_skb_queue_size;
+	u32 tx_ts_seconds_queue[LAN743X_PTP_NUMBER_OF_TX_TIMESTAMPS];
+	u32 tx_ts_nseconds_queue[LAN743X_PTP_NUMBER_OF_TX_TIMESTAMPS];
+	u32 tx_ts_header_queue[LAN743X_PTP_NUMBER_OF_TX_TIMESTAMPS];
+	int tx_ts_queue_size;
+};
+
+#endif /* _LAN743X_PTP_H */