Lan743/6.1 vanilla driver of Lan7431 from upstream

Adding 6.1.9 unmodified Lan7431 driver to nvidia-oot

This is the unmodified driver from
  K6.1.9
without our NVIDIA specific changes

Bug 3978997

Signed-off-by: Jeremy Alves <jalves@nvidia.com>
Change-Id: Iaf453a1b9dc82355f8c7936823c5c90633fe24d9
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/2934591
Tested-by: Laxman Dewangan <ldewangan@nvidia.com>
Reviewed-by: Laxman Dewangan <ldewangan@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>

drivers/net/ethernet/microchip/6.1/lan743x_ethtool.h

@@ -0,0 +1,37 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/* Copyright (C) 2018 Microchip Technology Inc. */
+
+#ifndef _LAN743X_ETHTOOL_H
+#define _LAN743X_ETHTOOL_H
+
+#include "linux/ethtool.h"
+
+#define LAN743X_ETH_REG_VERSION         1
+
+enum {
+	ETH_PRIV_FLAGS,
+	ETH_ID_REV,
+	ETH_FPGA_REV,
+	ETH_STRAP_READ,
+	ETH_INT_STS,
+	ETH_HW_CFG,
+	ETH_PMT_CTL,
+	ETH_E2P_CMD,
+	ETH_E2P_DATA,
+	ETH_MAC_CR,
+	ETH_MAC_RX,
+	ETH_MAC_TX,
+	ETH_FLOW,
+	ETH_MII_ACC,
+	ETH_MII_DATA,
+	ETH_EEE_TX_LPI_REQ_DLY,
+	ETH_WUCSR,
+	ETH_WK_SRC,
+
+	/* Add new registers above */
+	MAX_LAN743X_ETH_REGS
+};
+
+extern const struct ethtool_ops lan743x_ethtool_ops;
+
+#endif /* _LAN743X_ETHTOOL_H */

drivers/net/ethernet/microchip/6.1/lan743x_ptp.h

@@ -0,0 +1,101 @@
+/* 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"
+
+#define LAN7430_N_LED			4
+#define LAN7430_N_GPIO			4	/* multiplexed with PHY LEDs */
+#define LAN7431_N_GPIO			12
+
+#define LAN743X_PTP_N_GPIO		LAN7431_N_GPIO
+
+/* the number of periodic outputs is limited by number of
+ * PTP clock event channels
+ */
+#define LAN743X_PTP_N_EVENT_CHAN	2
+#define LAN743X_PTP_N_PEROUT		LAN743X_PTP_N_EVENT_CHAN
+#define LAN743X_PTP_N_EXTTS		4
+#define LAN743X_PTP_N_PPS		0
+#define PCI11X1X_PTP_IO_MAX_CHANNELS	8
+
+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_perout {
+	int  event_ch;	/* PTP event channel (0=channel A, 1=channel B) */
+	int  gpio_pin;	/* GPIO pin where output appears */
+};
+
+struct lan743x_extts {
+	int flags;
+	struct timespec64 ts;
+};
+
+struct lan743x_ptp {
+	int flags;
+
+	/* command_lock: used to prevent concurrent ptp commands */
+	struct mutex	command_lock;
+
+	struct ptp_clock *ptp_clock;
+	struct ptp_clock_info ptp_clock_info;
+	struct ptp_pin_desc pin_config[LAN743X_PTP_N_GPIO];
+
+	unsigned long used_event_ch;
+	struct lan743x_ptp_perout perout[LAN743X_PTP_N_PEROUT];
+	int ptp_io_perout[LAN743X_PTP_N_PEROUT]; /* PTP event channel (0=channel A, 1=channel B) */
+	struct lan743x_extts extts[LAN743X_PTP_N_EXTTS];
+
+	bool leds_multiplexed;
+	bool led_enabled[LAN7430_N_LED];
+
+	/* 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 */

drivers/net/ethernet/microchip/Makefile

@@ -11,10 +11,10 @@ ifeq ($(PATCHLEVEL), 15)
 endif #PATCHLEVEL
 
 #when adding 6.1, uncomment below
-#else ifeq ($(VERSION), 6)
-#ifeq ($(PATCHLEVEL), 1)
-    #obj-m += lan743x.o
-    #lan743x-objs += 6.1/lan743x_main.o 6.1/lan743x_ethtool.o 6.1/lan743x_ptp.o
-#endif #PATCHLEVEL
+else ifeq ($(VERSION), 6)
+ifeq ($(PATCHLEVEL), 1)
+    obj-m += lan743x.o
+    lan743x-objs += 6.1/lan743x_main.o 6.1/lan743x_ethtool.o 6.1/lan743x_ptp.o
+endif #PATCHLEVEL
 
 endif #VERSION