Resguardo inicial

linux-7.2.3/drivers/net/ethernet/wangxun/Kconfig

@@ -0,0 +1,101 @@
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# Wangxun network device configuration
+#
+
+config NET_VENDOR_WANGXUN
+	bool "Wangxun devices"
+	default y
+	help
+	  If you have a network (Ethernet) card from Wangxun(R), say Y.
+
+	  Note that the answer to this question doesn't directly affect the
+	  kernel: saying N will just cause the configurator to skip all
+	  the questions about Wangxun(R) cards. If you say Y, you will
+	  be asked for your specific card in the following questions.
+
+if NET_VENDOR_WANGXUN
+
+config LIBWX
+	tristate
+	depends on PTP_1588_CLOCK_OPTIONAL
+	select PAGE_POOL
+	select DIMLIB
+	select PHYLINK
+	help
+	Common library for Wangxun(R) Ethernet drivers.
+
+config NGBE
+	tristate "Wangxun(R) GbE PCI Express adapters support"
+	depends on PCI
+	depends on PTP_1588_CLOCK_OPTIONAL
+	select LIBWX
+	help
+	  This driver supports Wangxun(R) GbE PCI Express family of
+	  adapters.
+
+	  More specific information on configuring the driver is in
+	  <file:Documentation/networking/device_drivers/ethernet/wangxun/ngbe.rst>.
+
+	  To compile this driver as a module, choose M here. The module
+	  will be called ngbe.
+
+config TXGBE
+	tristate "Wangxun(R) 10/25/40GbE PCI Express adapters support"
+	depends on PCI
+	depends on COMMON_CLK
+	depends on I2C_DESIGNWARE_PLATFORM
+	depends on PTP_1588_CLOCK_OPTIONAL
+	select MARVELL_10G_PHY
+	select REGMAP
+	select HWMON if TXGBE=y
+	select SFP
+	select GPIOLIB
+	select GPIOLIB_IRQCHIP
+	select PCS_XPCS
+	select LIBWX
+	help
+	  This driver supports Wangxun(R) 10/25/40GbE PCI Express family of
+	  adapters.
+
+	  More specific information on configuring the driver is in
+	  <file:Documentation/networking/device_drivers/ethernet/wangxun/txgbe.rst>.
+
+	  To compile this driver as a module, choose M here. The module
+	  will be called txgbe.
+
+config TXGBEVF
+	tristate "Wangxun(R) 10/25/40G Virtual Function Ethernet support"
+	depends on PCI
+	depends on PCI_MSI
+	depends on PTP_1588_CLOCK_OPTIONAL
+	select LIBWX
+	help
+	  This driver supports virtual functions for SP1000A, WX1820AL,
+	  WX5XXX, WX5XXXAL.
+
+	  This driver was formerly named txgbevf.
+
+	  More specific information on configuring the driver is in
+	  <file:Documentation/networking/device_drivers/ethernet/wangxun/txgbevf.rst>.
+
+	  To compile this driver as a module, choose M here. MSI-X interrupt
+	  support is required for this driver to work correctly.
+
+config NGBEVF
+	tristate "Wangxun(R) GbE Virtual Function Ethernet support"
+	depends on PCI_MSI
+	depends on PTP_1588_CLOCK_OPTIONAL
+	select LIBWX
+	help
+	  This driver supports virtual functions for WX1860, WX1860AL.
+
+	  This driver was formerly named ngbevf.
+
+	  More specific information on configuring the driver is in
+	  <file:Documentation/networking/device_drivers/ethernet/wangxun/ngbevf.rst>.
+
+	  To compile this driver as a module, choose M here. MSI-X interrupt
+	  support is required for this driver to work correctly.
+
+endif # NET_VENDOR_WANGXUN

linux-7.2.3/drivers/net/ethernet/wangxun/Makefile

@@ -0,0 +1,10 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Makefile for the Wangxun network device drivers.
+#
+
+obj-$(CONFIG_LIBWX) += libwx/
+obj-$(CONFIG_TXGBE) += txgbe/
+obj-$(CONFIG_TXGBEVF) += txgbevf/
+obj-$(CONFIG_NGBE) += ngbe/
+obj-$(CONFIG_NGBEVF) += ngbevf/

linux-7.2.3/drivers/net/ethernet/wangxun/libwx/Makefile

@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (c) 2015 - 2022 Beijing WangXun Technology Co., Ltd.
+#
+
+obj-$(CONFIG_LIBWX) += libwx.o
+
+libwx-objs := wx_hw.o wx_lib.o wx_ethtool.o wx_ptp.o wx_mbx.o wx_sriov.o
+libwx-objs += wx_vf.o wx_vf_lib.o wx_vf_common.o

linux-7.2.3/drivers/net/ethernet/wangxun/libwx/wx_ethtool.c

@@ -0,0 +1,795 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2015 - 2023 Beijing WangXun Technology Co., Ltd. */
+
+#include <linux/pci.h>
+#include <linux/phy.h>
+#include <linux/ethtool.h>
+
+#include "wx_type.h"
+#include "wx_ethtool.h"
+#include "wx_hw.h"
+#include "wx_lib.h"
+
+struct wx_stats {
+	char stat_string[ETH_GSTRING_LEN];
+	size_t sizeof_stat;
+	off_t stat_offset;
+};
+
+#define WX_STAT(str, m) { \
+		.stat_string = str, \
+		.sizeof_stat = sizeof(((struct wx *)0)->m), \
+		.stat_offset = offsetof(struct wx, m) }
+
+static const struct wx_stats wx_gstrings_stats[] = {
+	WX_STAT("rx_dma_pkts", stats.gprc),
+	WX_STAT("tx_dma_pkts", stats.gptc),
+	WX_STAT("rx_dma_bytes", stats.gorc),
+	WX_STAT("tx_dma_bytes", stats.gotc),
+	WX_STAT("rx_total_pkts", stats.tpr),
+	WX_STAT("tx_total_pkts", stats.tpt),
+	WX_STAT("rx_long_length_count", stats.roc),
+	WX_STAT("rx_short_length_count", stats.ruc),
+	WX_STAT("os2bmc_rx_by_bmc", stats.o2bgptc),
+	WX_STAT("os2bmc_tx_by_bmc", stats.b2ospc),
+	WX_STAT("os2bmc_tx_by_host", stats.o2bspc),
+	WX_STAT("os2bmc_rx_by_host", stats.b2ogprc),
+	WX_STAT("rx_no_dma_resources", stats.rdmdrop),
+	WX_STAT("tx_busy", tx_busy),
+	WX_STAT("non_eop_descs", non_eop_descs),
+	WX_STAT("tx_restart_queue", restart_queue),
+	WX_STAT("rx_csum_offload_good_count", hw_csum_rx_good),
+	WX_STAT("rx_csum_offload_errors", hw_csum_rx_error),
+	WX_STAT("alloc_rx_buff_failed", alloc_rx_buff_failed),
+	WX_STAT("tx_hwtstamp_timeouts", tx_hwtstamp_timeouts),
+	WX_STAT("tx_hwtstamp_skipped", tx_hwtstamp_skipped),
+	WX_STAT("rx_hwtstamp_cleared", rx_hwtstamp_cleared),
+};
+
+static const struct wx_stats wx_gstrings_fdir_stats[] = {
+	WX_STAT("fdir_match", stats.fdirmatch),
+	WX_STAT("fdir_miss", stats.fdirmiss),
+};
+
+static const struct wx_stats wx_gstrings_rsc_stats[] = {
+	WX_STAT("rsc_aggregated", rsc_count),
+	WX_STAT("rsc_flushed", rsc_flush),
+};
+
+/* drivers allocates num_tx_queues and num_rx_queues symmetrically so
+ * we set the num_rx_queues to evaluate to num_tx_queues. This is
+ * used because we do not have a good way to get the max number of
+ * rx queues with CONFIG_RPS disabled.
+ */
+#define WX_NUM_RX_QUEUES netdev->num_tx_queues
+#define WX_NUM_TX_QUEUES netdev->num_tx_queues
+
+#define WX_QUEUE_STATS_LEN ( \
+		(WX_NUM_TX_QUEUES + WX_NUM_RX_QUEUES) * \
+		(sizeof(struct wx_queue_stats) / sizeof(u64)))
+#define WX_GLOBAL_STATS_LEN  ARRAY_SIZE(wx_gstrings_stats)
+#define WX_FDIR_STATS_LEN  ARRAY_SIZE(wx_gstrings_fdir_stats)
+#define WX_RSC_STATS_LEN  ARRAY_SIZE(wx_gstrings_rsc_stats)
+#define WX_STATS_LEN (WX_GLOBAL_STATS_LEN + WX_QUEUE_STATS_LEN)
+
+int wx_get_sset_count(struct net_device *netdev, int sset)
+{
+	struct wx *wx = netdev_priv(netdev);
+	int len = WX_STATS_LEN;
+
+	switch (sset) {
+	case ETH_SS_STATS:
+		if (test_bit(WX_FLAG_FDIR_CAPABLE, wx->flags))
+			len += WX_FDIR_STATS_LEN;
+		if (test_bit(WX_FLAG_RSC_CAPABLE, wx->flags))
+			len += WX_RSC_STATS_LEN;
+		return len;
+	default:
+		return -EOPNOTSUPP;
+	}
+}
+EXPORT_SYMBOL(wx_get_sset_count);
+
+void wx_get_strings(struct net_device *netdev, u32 stringset, u8 *data)
+{
+	struct wx *wx = netdev_priv(netdev);
+	u8 *p = data;
+	int i;
+
+	switch (stringset) {
+	case ETH_SS_STATS:
+		for (i = 0; i < WX_GLOBAL_STATS_LEN; i++)
+			ethtool_puts(&p, wx_gstrings_stats[i].stat_string);
+		if (test_bit(WX_FLAG_FDIR_CAPABLE, wx->flags)) {
+			for (i = 0; i < WX_FDIR_STATS_LEN; i++)
+				ethtool_puts(&p, wx_gstrings_fdir_stats[i].stat_string);
+		}
+		if (test_bit(WX_FLAG_RSC_CAPABLE, wx->flags)) {
+			for (i = 0; i < WX_RSC_STATS_LEN; i++)
+				ethtool_puts(&p, wx_gstrings_rsc_stats[i].stat_string);
+		}
+		for (i = 0; i < netdev->num_tx_queues; i++) {
+			ethtool_sprintf(&p, "tx_queue_%u_packets", i);
+			ethtool_sprintf(&p, "tx_queue_%u_bytes", i);
+		}
+		for (i = 0; i < WX_NUM_RX_QUEUES; i++) {
+			ethtool_sprintf(&p, "rx_queue_%u_packets", i);
+			ethtool_sprintf(&p, "rx_queue_%u_bytes", i);
+		}
+		break;
+	}
+}
+EXPORT_SYMBOL(wx_get_strings);
+
+void wx_get_ethtool_stats(struct net_device *netdev,
+			  struct ethtool_stats *stats, u64 *data)
+{
+	struct wx *wx = netdev_priv(netdev);
+	struct wx_ring *ring;
+	unsigned int start;
+	int i, j, k;
+	char *p;
+
+	wx_update_stats(wx);
+
+	for (i = 0; i < WX_GLOBAL_STATS_LEN; i++) {
+		p = (char *)wx + wx_gstrings_stats[i].stat_offset;
+		data[i] = (wx_gstrings_stats[i].sizeof_stat ==
+			   sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
+	}
+
+	if (test_bit(WX_FLAG_FDIR_CAPABLE, wx->flags)) {
+		for (k = 0; k < WX_FDIR_STATS_LEN; k++) {
+			p = (char *)wx + wx_gstrings_fdir_stats[k].stat_offset;
+			data[i++] = *(u64 *)p;
+		}
+	}
+
+	if (test_bit(WX_FLAG_RSC_CAPABLE, wx->flags)) {
+		for (k = 0; k < WX_RSC_STATS_LEN; k++) {
+			p = (char *)wx + wx_gstrings_rsc_stats[k].stat_offset;
+			data[i++] = *(u64 *)p;
+		}
+	}
+
+	for (j = 0; j < netdev->num_tx_queues; j++) {
+		ring = wx->tx_ring[j];
+		if (!ring) {
+			data[i++] = 0;
+			data[i++] = 0;
+			continue;
+		}
+
+		do {
+			start = u64_stats_fetch_begin(&ring->syncp);
+			data[i] = ring->stats.packets;
+			data[i + 1] = ring->stats.bytes;
+		} while (u64_stats_fetch_retry(&ring->syncp, start));
+		i += 2;
+	}
+	for (j = 0; j < WX_NUM_RX_QUEUES; j++) {
+		ring = wx->rx_ring[j];
+		if (!ring) {
+			data[i++] = 0;
+			data[i++] = 0;
+			continue;
+		}
+
+		do {
+			start = u64_stats_fetch_begin(&ring->syncp);
+			data[i] = ring->stats.packets;
+			data[i + 1] = ring->stats.bytes;
+		} while (u64_stats_fetch_retry(&ring->syncp, start));
+		i += 2;
+	}
+}
+EXPORT_SYMBOL(wx_get_ethtool_stats);
+
+void wx_get_mac_stats(struct net_device *netdev,
+		      struct ethtool_eth_mac_stats *mac_stats)
+{
+	struct wx *wx = netdev_priv(netdev);
+	struct wx_hw_stats *hwstats;
+
+	wx_update_stats(wx);
+
+	hwstats = &wx->stats;
+	mac_stats->MulticastFramesXmittedOK = hwstats->mptc;
+	mac_stats->BroadcastFramesXmittedOK = hwstats->bptc;
+	mac_stats->MulticastFramesReceivedOK = hwstats->mprc;
+	mac_stats->BroadcastFramesReceivedOK = hwstats->bprc;
+}
+EXPORT_SYMBOL(wx_get_mac_stats);
+
+void wx_get_pause_stats(struct net_device *netdev,
+			struct ethtool_pause_stats *stats)
+{
+	struct wx *wx = netdev_priv(netdev);
+	struct wx_hw_stats *hwstats;
+
+	wx_update_stats(wx);
+
+	hwstats = &wx->stats;
+	stats->tx_pause_frames = hwstats->lxontxc + hwstats->lxofftxc;
+	stats->rx_pause_frames = hwstats->lxonrxc + hwstats->lxoffrxc;
+}
+EXPORT_SYMBOL(wx_get_pause_stats);
+
+void wx_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *info)
+{
+	unsigned int stats_len = WX_STATS_LEN;
+	struct wx *wx = netdev_priv(netdev);
+
+	if (test_bit(WX_FLAG_FDIR_CAPABLE, wx->flags))
+		stats_len += WX_FDIR_STATS_LEN;
+
+	strscpy(info->driver, wx->driver_name, sizeof(info->driver));
+	strscpy(info->fw_version, wx->eeprom_id, sizeof(info->fw_version));
+	strscpy(info->bus_info, pci_name(wx->pdev), sizeof(info->bus_info));
+	if (wx->num_tx_queues <= WX_NUM_TX_QUEUES) {
+		info->n_stats = stats_len -
+				   (WX_NUM_TX_QUEUES - wx->num_tx_queues) *
+				   (sizeof(struct wx_queue_stats) / sizeof(u64)) * 2;
+	} else {
+		info->n_stats = stats_len;
+	}
+}
+EXPORT_SYMBOL(wx_get_drvinfo);
+
+int wx_nway_reset(struct net_device *netdev)
+{
+	struct wx *wx = netdev_priv(netdev);
+
+	return phylink_ethtool_nway_reset(wx->phylink);
+}
+EXPORT_SYMBOL(wx_nway_reset);
+
+int wx_get_link_ksettings(struct net_device *netdev,
+			  struct ethtool_link_ksettings *cmd)
+{
+	struct wx *wx = netdev_priv(netdev);
+
+	return phylink_ethtool_ksettings_get(wx->phylink, cmd);
+}
+EXPORT_SYMBOL(wx_get_link_ksettings);
+
+int wx_set_link_ksettings(struct net_device *netdev,
+			  const struct ethtool_link_ksettings *cmd)
+{
+	struct wx *wx = netdev_priv(netdev);
+
+	return phylink_ethtool_ksettings_set(wx->phylink, cmd);
+}
+EXPORT_SYMBOL(wx_set_link_ksettings);
+
+void wx_get_wol(struct net_device *netdev,
+		struct ethtool_wolinfo *wol)
+{
+	struct wx *wx = netdev_priv(netdev);
+
+	if (!wx->wol_hw_supported)
+		return;
+	wol->supported = WAKE_MAGIC;
+	wol->wolopts = 0;
+	if (wx->wol & WX_PSR_WKUP_CTL_MAG)
+		wol->wolopts |= WAKE_MAGIC;
+}
+EXPORT_SYMBOL(wx_get_wol);
+
+int wx_set_wol(struct net_device *netdev,
+	       struct ethtool_wolinfo *wol)
+{
+	struct wx *wx = netdev_priv(netdev);
+	struct pci_dev *pdev = wx->pdev;
+
+	if (!wx->wol_hw_supported)
+		return -EOPNOTSUPP;
+
+	wx->wol = 0;
+	if (wol->wolopts & WAKE_MAGIC)
+		wx->wol = WX_PSR_WKUP_CTL_MAG;
+	wr32(wx, WX_PSR_WKUP_CTL, wx->wol);
+	device_set_wakeup_enable(&pdev->dev, !!(wx->wol));
+
+	return 0;
+}
+EXPORT_SYMBOL(wx_set_wol);
+
+void wx_get_pauseparam(struct net_device *netdev,
+		       struct ethtool_pauseparam *pause)
+{
+	struct wx *wx = netdev_priv(netdev);
+
+	phylink_ethtool_get_pauseparam(wx->phylink, pause);
+}
+EXPORT_SYMBOL(wx_get_pauseparam);
+
+int wx_set_pauseparam(struct net_device *netdev,
+		      struct ethtool_pauseparam *pause)
+{
+	struct wx *wx = netdev_priv(netdev);
+
+	return phylink_ethtool_set_pauseparam(wx->phylink, pause);
+}
+EXPORT_SYMBOL(wx_set_pauseparam);
+
+void wx_get_ringparam(struct net_device *netdev,
+		      struct ethtool_ringparam *ring,
+		      struct kernel_ethtool_ringparam *kernel_ring,
+		      struct netlink_ext_ack *extack)
+{
+	struct wx *wx = netdev_priv(netdev);
+
+	ring->rx_max_pending = WX_MAX_RXD;
+	ring->tx_max_pending = WX_MAX_TXD;
+	ring->rx_mini_max_pending = 0;
+	ring->rx_jumbo_max_pending = 0;
+	ring->rx_pending = wx->rx_ring_count;
+	ring->tx_pending = wx->tx_ring_count;
+	ring->rx_mini_pending = 0;
+	ring->rx_jumbo_pending = 0;
+}
+EXPORT_SYMBOL(wx_get_ringparam);
+
+int wx_get_coalesce(struct net_device *netdev,
+		    struct ethtool_coalesce *ec,
+		    struct kernel_ethtool_coalesce *kernel_coal,
+		    struct netlink_ext_ack *extack)
+{
+	struct wx *wx = netdev_priv(netdev);
+
+	ec->tx_max_coalesced_frames_irq = wx->tx_work_limit;
+	/* only valid if in constant ITR mode */
+	if (wx->rx_itr_setting <= 1)
+		ec->rx_coalesce_usecs = wx->rx_itr_setting;
+	else
+		ec->rx_coalesce_usecs = wx->rx_itr_setting >> 2;
+
+	if (wx->adaptive_itr) {
+		ec->use_adaptive_rx_coalesce = 1;
+		ec->use_adaptive_tx_coalesce = 1;
+	}
+
+	/* if in mixed tx/rx queues per vector mode, report only rx settings */
+	if (wx->q_vector[0]->tx.count && wx->q_vector[0]->rx.count)
+		return 0;
+
+	/* only valid if in constant ITR mode */
+	if (wx->tx_itr_setting <= 1)
+		ec->tx_coalesce_usecs = wx->tx_itr_setting;
+	else
+		ec->tx_coalesce_usecs = wx->tx_itr_setting >> 2;
+
+	return 0;
+}
+EXPORT_SYMBOL(wx_get_coalesce);
+
+static void wx_update_rsc(struct wx *wx)
+{
+	struct net_device *netdev = wx->netdev;
+	bool need_reset = false;
+
+	/* nothing to do if LRO or RSC are not enabled */
+	if (!test_bit(WX_FLAG_RSC_CAPABLE, wx->flags) ||
+	    !(netdev->features & NETIF_F_LRO))
+		return;
+
+	/* check the feature flag value and enable RSC if necessary */
+	if (wx->rx_itr_setting == 1 ||
+	    wx->rx_itr_setting > WX_MIN_RSC_ITR) {
+		if (!test_bit(WX_FLAG_RSC_ENABLED, wx->flags)) {
+			set_bit(WX_FLAG_RSC_ENABLED, wx->flags);
+			dev_info(&wx->pdev->dev,
+				 "rx-usecs value high enough to re-enable RSC\n");
+
+			need_reset = true;
+		}
+	/* if interrupt rate is too high then disable RSC */
+	} else if (test_bit(WX_FLAG_RSC_ENABLED, wx->flags)) {
+		clear_bit(WX_FLAG_RSC_ENABLED, wx->flags);
+		dev_info(&wx->pdev->dev,
+			 "rx-usecs set too low, disabling RSC\n");
+
+		need_reset = true;
+	}
+
+	/* reset the device to apply the new RSC setting */
+	if (need_reset && wx->do_reset)
+		wx->do_reset(netdev);
+}
+
+int wx_set_coalesce(struct net_device *netdev,
+		    struct ethtool_coalesce *ec,
+		    struct kernel_ethtool_coalesce *kernel_coal,
+		    struct netlink_ext_ack *extack)
+{
+	struct wx *wx = netdev_priv(netdev);
+	u16 tx_itr_param, rx_itr_param;
+	struct wx_q_vector *q_vector;
+	u16 max_eitr;
+	int i;
+
+	if (wx->q_vector[0]->tx.count && wx->q_vector[0]->rx.count) {
+		/* reject Tx specific changes in case of mixed RxTx vectors */
+		if (ec->tx_coalesce_usecs)
+			return -EOPNOTSUPP;
+	}
+
+	if (ec->tx_max_coalesced_frames_irq > U16_MAX  ||
+	    !ec->tx_max_coalesced_frames_irq)
+		return -EINVAL;
+
+	wx->tx_work_limit = ec->tx_max_coalesced_frames_irq;
+
+	switch (wx->mac.type) {
+	case wx_mac_sp:
+		max_eitr = WX_SP_MAX_EITR;
+		rx_itr_param = WX_20K_ITR;
+		tx_itr_param = WX_12K_ITR;
+		break;
+	case wx_mac_aml:
+	case wx_mac_aml40:
+		max_eitr = WX_AML_MAX_EITR;
+		rx_itr_param = WX_20K_ITR;
+		tx_itr_param = WX_12K_ITR;
+		break;
+	default:
+		max_eitr = WX_EM_MAX_EITR;
+		rx_itr_param = WX_7K_ITR;
+		tx_itr_param = WX_7K_ITR;
+		break;
+	}
+
+	if ((ec->rx_coalesce_usecs > (max_eitr >> 2)) ||
+	    (ec->tx_coalesce_usecs > (max_eitr >> 2)))
+		return -EINVAL;
+
+	if (ec->use_adaptive_rx_coalesce) {
+		wx->adaptive_itr = true;
+		wx->rx_itr_setting = 1;
+		wx->tx_itr_setting = 1;
+		return 0;
+	}
+
+	if (ec->rx_coalesce_usecs > 1)
+		wx->rx_itr_setting = ec->rx_coalesce_usecs << 2;
+	else
+		wx->rx_itr_setting = ec->rx_coalesce_usecs;
+
+	if (ec->tx_coalesce_usecs > 1)
+		wx->tx_itr_setting = ec->tx_coalesce_usecs << 2;
+	else
+		wx->tx_itr_setting = ec->tx_coalesce_usecs;
+
+	if (wx->adaptive_itr) {
+		wx->adaptive_itr = false;
+		wx->rx_itr_setting = rx_itr_param;
+		wx->tx_itr_setting = tx_itr_param;
+	} else if (wx->rx_itr_setting == 1 || wx->tx_itr_setting == 1) {
+		wx->adaptive_itr = true;
+	}
+
+	if (wx->rx_itr_setting != 1)
+		rx_itr_param = wx->rx_itr_setting;
+
+	if (wx->tx_itr_setting != 1)
+		tx_itr_param = wx->tx_itr_setting;
+
+	/* mixed Rx/Tx */
+	if (wx->q_vector[0]->tx.count && wx->q_vector[0]->rx.count)
+		wx->tx_itr_setting = wx->rx_itr_setting;
+
+	for (i = 0; i < wx->num_q_vectors; i++) {
+		q_vector = wx->q_vector[i];
+		if (q_vector->tx.count && !q_vector->rx.count)
+			/* tx only */
+			q_vector->itr = tx_itr_param;
+		else
+			/* rx only or mixed */
+			q_vector->itr = rx_itr_param;
+		wx_write_eitr(q_vector);
+	}
+
+	wx_update_rsc(wx);
+
+	return 0;
+}
+EXPORT_SYMBOL(wx_set_coalesce);
+
+static unsigned int wx_max_channels(struct wx *wx)
+{
+	unsigned int max_combined;
+
+	if (!wx->msix_q_entries) {
+		/* We only support one q_vector without MSI-X */
+		max_combined = 1;
+	} else {
+		/* support up to max allowed queues with RSS */
+		if (test_bit(WX_FLAG_MULTI_64_FUNC, wx->flags))
+			max_combined = 63;
+		else
+			max_combined = 8;
+	}
+
+	return max_combined;
+}
+
+void wx_get_channels(struct net_device *dev,
+		     struct ethtool_channels *ch)
+{
+	struct wx *wx = netdev_priv(dev);
+
+	/* report maximum channels */
+	ch->max_combined = wx_max_channels(wx);
+
+	/* report info for other vector */
+	if (wx->msix_q_entries) {
+		ch->max_other = 1;
+		ch->other_count = 1;
+	}
+
+	/* record RSS queues */
+	ch->combined_count = wx->ring_feature[RING_F_RSS].indices;
+
+	if (test_bit(WX_FLAG_FDIR_CAPABLE, wx->flags))
+		ch->combined_count = wx->ring_feature[RING_F_FDIR].indices;
+}
+EXPORT_SYMBOL(wx_get_channels);
+
+int wx_set_channels(struct net_device *dev,
+		    struct ethtool_channels *ch)
+{
+	unsigned int count = ch->combined_count;
+	struct wx *wx = netdev_priv(dev);
+
+	/* verify other_count has not changed */
+	if (ch->other_count != 1)
+		return -EINVAL;
+
+	/* verify the number of channels does not exceed hardware limits */
+	if (count > wx_max_channels(wx))
+		return -EINVAL;
+
+	if (test_bit(WX_FLAG_FDIR_CAPABLE, wx->flags))
+		wx->ring_feature[RING_F_FDIR].limit = count;
+
+	wx->ring_feature[RING_F_RSS].limit = count;
+
+	return wx->setup_tc(dev, netdev_get_num_tc(dev));
+}
+EXPORT_SYMBOL(wx_set_channels);
+
+u32 wx_rss_indir_size(struct net_device *netdev)
+{
+	struct wx *wx = netdev_priv(netdev);
+
+	return wx_rss_indir_tbl_entries(wx);
+}
+EXPORT_SYMBOL(wx_rss_indir_size);
+
+u32 wx_get_rxfh_key_size(struct net_device *netdev)
+{
+	return WX_RSS_KEY_SIZE;
+}
+EXPORT_SYMBOL(wx_get_rxfh_key_size);
+
+static void wx_get_reta(struct wx *wx, u32 *indir)
+{
+	u32 reta_size = wx_rss_indir_tbl_entries(wx);
+	u16 rss_m = wx->ring_feature[RING_F_RSS].mask;
+
+	if (test_bit(WX_FLAG_SRIOV_ENABLED, wx->flags))
+		rss_m = wx->ring_feature[RING_F_RSS].indices - 1;
+
+	for (u32 i = 0; i < reta_size; i++)
+		indir[i] = wx->rss_indir_tbl[i] & rss_m;
+}
+
+int wx_get_rxfh(struct net_device *netdev,
+		struct ethtool_rxfh_param *rxfh)
+{
+	struct wx *wx = netdev_priv(netdev);
+
+	rxfh->hfunc = ETH_RSS_HASH_TOP;
+
+	if (rxfh->indir)
+		wx_get_reta(wx, rxfh->indir);
+
+	if (rxfh->key)
+		memcpy(rxfh->key, wx->rss_key, WX_RSS_KEY_SIZE);
+
+	return 0;
+}
+EXPORT_SYMBOL(wx_get_rxfh);
+
+int wx_set_rxfh(struct net_device *netdev,
+		struct ethtool_rxfh_param *rxfh,
+		struct netlink_ext_ack *extack)
+{
+	struct wx *wx = netdev_priv(netdev);
+	u32 reta_entries, i;
+
+	if (rxfh->hfunc != ETH_RSS_HASH_NO_CHANGE &&
+	    rxfh->hfunc != ETH_RSS_HASH_TOP)
+		return -EOPNOTSUPP;
+
+	reta_entries = wx_rss_indir_tbl_entries(wx);
+	/* Fill out the redirection table */
+	if (rxfh->indir) {
+		for (i = 0; i < reta_entries; i++)
+			wx->rss_indir_tbl[i] = rxfh->indir[i];
+
+		wx_store_reta(wx);
+	}
+
+	/* Fill out the rss hash key */
+	if (rxfh->key) {
+		memcpy(wx->rss_key, rxfh->key, WX_RSS_KEY_SIZE);
+		wx_store_rsskey(wx);
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL(wx_set_rxfh);
+
+static const struct wx_rss_flow_map rss_flow_table[] = {
+	{ TCP_V4_FLOW, RXH_L4_B_0_1 | RXH_L4_B_2_3, WX_RSS_FIELD_IPV4_TCP },
+	{ TCP_V6_FLOW, RXH_L4_B_0_1 | RXH_L4_B_2_3, WX_RSS_FIELD_IPV6_TCP },
+	{ UDP_V4_FLOW, RXH_L4_B_0_1 | RXH_L4_B_2_3, WX_RSS_FIELD_IPV4_UDP },
+	{ UDP_V6_FLOW, RXH_L4_B_0_1 | RXH_L4_B_2_3, WX_RSS_FIELD_IPV6_UDP },
+	{ SCTP_V4_FLOW, RXH_L4_B_0_1 | RXH_L4_B_2_3, WX_RSS_FIELD_IPV4_SCTP },
+	{ SCTP_V6_FLOW, RXH_L4_B_0_1 | RXH_L4_B_2_3, WX_RSS_FIELD_IPV6_SCTP },
+};
+
+int wx_get_rxfh_fields(struct net_device *dev,
+		       struct ethtool_rxfh_fields *nfc)
+{
+	struct wx *wx = netdev_priv(dev);
+
+	nfc->data = RXH_IP_SRC | RXH_IP_DST;
+
+	for (u32 i = 0; i < ARRAY_SIZE(rss_flow_table); i++) {
+		const struct wx_rss_flow_map *entry = &rss_flow_table[i];
+
+		if (entry->flow_type == nfc->flow_type) {
+			if (wx->rss_flags & entry->flag)
+				nfc->data |= entry->data;
+			break;
+		}
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL(wx_get_rxfh_fields);
+
+int wx_set_rxfh_fields(struct net_device *dev,
+		       const struct ethtool_rxfh_fields *nfc,
+		       struct netlink_ext_ack *extack)
+{
+	struct wx *wx = netdev_priv(dev);
+	u8 flags = wx->rss_flags;
+
+	if (!(nfc->data & RXH_IP_SRC) ||
+	    !(nfc->data & RXH_IP_DST))
+		return -EINVAL;
+
+	for (u32 i = 0; i < ARRAY_SIZE(rss_flow_table); i++) {
+		const struct wx_rss_flow_map *entry = &rss_flow_table[i];
+
+		if (entry->flow_type == nfc->flow_type) {
+			if (nfc->data & entry->data)
+				flags |= entry->flag;
+			else
+				flags &= ~entry->flag;
+
+			if (flags != wx->rss_flags) {
+				wx->rss_flags = flags;
+				wx_config_rss_field(wx);
+			}
+
+			return 0;
+		}
+	}
+
+	return -EINVAL;
+}
+EXPORT_SYMBOL(wx_set_rxfh_fields);
+
+u32 wx_get_msglevel(struct net_device *netdev)
+{
+	struct wx *wx = netdev_priv(netdev);
+
+	return wx->msg_enable;
+}
+EXPORT_SYMBOL(wx_get_msglevel);
+
+void wx_set_msglevel(struct net_device *netdev, u32 data)
+{
+	struct wx *wx = netdev_priv(netdev);
+
+	wx->msg_enable = data;
+}
+EXPORT_SYMBOL(wx_set_msglevel);
+
+int wx_get_ts_info(struct net_device *dev,
+		   struct kernel_ethtool_ts_info *info)
+{
+	struct wx *wx = netdev_priv(dev);
+
+	info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) |
+			   BIT(HWTSTAMP_FILTER_PTP_V1_L4_SYNC) |
+			   BIT(HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) |
+			   BIT(HWTSTAMP_FILTER_PTP_V2_L2_EVENT) |
+			   BIT(HWTSTAMP_FILTER_PTP_V2_L4_EVENT) |
+			   BIT(HWTSTAMP_FILTER_PTP_V2_SYNC) |
+			   BIT(HWTSTAMP_FILTER_PTP_V2_L2_SYNC) |
+			   BIT(HWTSTAMP_FILTER_PTP_V2_L4_SYNC) |
+			   BIT(HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) |
+			   BIT(HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ) |
+			   BIT(HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ) |
+			   BIT(HWTSTAMP_FILTER_PTP_V2_EVENT);
+
+	info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE |
+				SOF_TIMESTAMPING_TX_HARDWARE |
+				SOF_TIMESTAMPING_RX_HARDWARE |
+				SOF_TIMESTAMPING_RAW_HARDWARE;
+
+	if (wx->ptp_clock)
+		info->phc_index = ptp_clock_index(wx->ptp_clock);
+	else
+		info->phc_index = -1;
+
+	info->tx_types = BIT(HWTSTAMP_TX_OFF) |
+			 BIT(HWTSTAMP_TX_ON);
+
+	return 0;
+}
+EXPORT_SYMBOL(wx_get_ts_info);
+
+void wx_get_ptp_stats(struct net_device *dev,
+		      struct ethtool_ts_stats *ts_stats)
+{
+	struct wx *wx = netdev_priv(dev);
+
+	if (wx->ptp_clock) {
+		ts_stats->pkts = wx->tx_hwtstamp_pkts;
+		ts_stats->lost = wx->tx_hwtstamp_timeouts +
+				 wx->tx_hwtstamp_skipped +
+				 wx->rx_hwtstamp_cleared;
+		ts_stats->err = wx->tx_hwtstamp_errors;
+	}
+}
+EXPORT_SYMBOL(wx_get_ptp_stats);
+
+static int wx_get_link_ksettings_vf(struct net_device *netdev,
+				    struct ethtool_link_ksettings *cmd)
+{
+	struct wx *wx = netdev_priv(netdev);
+
+	ethtool_link_ksettings_zero_link_mode(cmd, supported);
+	cmd->base.autoneg = AUTONEG_DISABLE;
+	cmd->base.port = PORT_NONE;
+	cmd->base.duplex = DUPLEX_FULL;
+	cmd->base.speed = wx->speed;
+
+	return 0;
+}
+
+static const struct ethtool_ops wx_ethtool_ops_vf = {
+	.supported_coalesce_params = ETHTOOL_COALESCE_USECS |
+				     ETHTOOL_COALESCE_TX_MAX_FRAMES_IRQ |
+				     ETHTOOL_COALESCE_USE_ADAPTIVE,
+	.get_drvinfo		= wx_get_drvinfo,
+	.get_link		= ethtool_op_get_link,
+	.get_ringparam		= wx_get_ringparam,
+	.get_msglevel		= wx_get_msglevel,
+	.get_coalesce		= wx_get_coalesce,
+	.get_ts_info		= ethtool_op_get_ts_info,
+	.get_link_ksettings	= wx_get_link_ksettings_vf,
+};
+
+void wx_set_ethtool_ops_vf(struct net_device *netdev)
+{
+	netdev->ethtool_ops = &wx_ethtool_ops_vf;
+}
+EXPORT_SYMBOL(wx_set_ethtool_ops_vf);

linux-7.2.3/drivers/net/ethernet/wangxun/libwx/wx_ethtool.h

@@ -0,0 +1,64 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2015 - 2023 Beijing WangXun Technology Co., Ltd. */
+
+#ifndef _WX_ETHTOOL_H_
+#define _WX_ETHTOOL_H_
+
+int wx_get_sset_count(struct net_device *netdev, int sset);
+void wx_get_strings(struct net_device *netdev, u32 stringset, u8 *data);
+void wx_get_ethtool_stats(struct net_device *netdev,
+			  struct ethtool_stats *stats, u64 *data);
+void wx_get_mac_stats(struct net_device *netdev,
+		      struct ethtool_eth_mac_stats *mac_stats);
+void wx_get_pause_stats(struct net_device *netdev,
+			struct ethtool_pause_stats *stats);
+void wx_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *info);
+int wx_nway_reset(struct net_device *netdev);
+int wx_get_link_ksettings(struct net_device *netdev,
+			  struct ethtool_link_ksettings *cmd);
+int wx_set_link_ksettings(struct net_device *netdev,
+			  const struct ethtool_link_ksettings *cmd);
+void wx_get_wol(struct net_device *netdev,
+		struct ethtool_wolinfo *wol);
+int wx_set_wol(struct net_device *netdev,
+	       struct ethtool_wolinfo *wol);
+void wx_get_pauseparam(struct net_device *netdev,
+		       struct ethtool_pauseparam *pause);
+int wx_set_pauseparam(struct net_device *netdev,
+		      struct ethtool_pauseparam *pause);
+void wx_get_ringparam(struct net_device *netdev,
+		      struct ethtool_ringparam *ring,
+		      struct kernel_ethtool_ringparam *kernel_ring,
+		      struct netlink_ext_ack *extack);
+int wx_get_coalesce(struct net_device *netdev,
+		    struct ethtool_coalesce *ec,
+		    struct kernel_ethtool_coalesce *kernel_coal,
+		    struct netlink_ext_ack *extack);
+int wx_set_coalesce(struct net_device *netdev,
+		    struct ethtool_coalesce *ec,
+		    struct kernel_ethtool_coalesce *kernel_coal,
+		    struct netlink_ext_ack *extack);
+void wx_get_channels(struct net_device *dev,
+		     struct ethtool_channels *ch);
+int wx_set_channels(struct net_device *dev,
+		    struct ethtool_channels *ch);
+u32 wx_rss_indir_size(struct net_device *netdev);
+u32 wx_get_rxfh_key_size(struct net_device *netdev);
+int wx_get_rxfh(struct net_device *netdev,
+		struct ethtool_rxfh_param *rxfh);
+int wx_set_rxfh(struct net_device *netdev,
+		struct ethtool_rxfh_param *rxfh,
+		struct netlink_ext_ack *extack);
+int wx_get_rxfh_fields(struct net_device *dev,
+		       struct ethtool_rxfh_fields *cmd);
+int wx_set_rxfh_fields(struct net_device *dev,
+		       const struct ethtool_rxfh_fields *nfc,
+		       struct netlink_ext_ack *extack);
+u32 wx_get_msglevel(struct net_device *netdev);
+void wx_set_msglevel(struct net_device *netdev, u32 data);
+int wx_get_ts_info(struct net_device *dev,
+		   struct kernel_ethtool_ts_info *info);
+void wx_get_ptp_stats(struct net_device *dev,
+		      struct ethtool_ts_stats *ts_stats);
+void wx_set_ethtool_ops_vf(struct net_device *netdev);
+#endif /* _WX_ETHTOOL_H_ */

linux-7.2.3/drivers/net/ethernet/wangxun/libwx/wx_hw.h

@@ -0,0 +1,63 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2015 - 2022 Beijing WangXun Technology Co., Ltd. */
+
+#ifndef _WX_HW_H_
+#define _WX_HW_H_
+
+#include <linux/phy.h>
+
+int wx_phy_read_reg_mdi_c22(struct mii_bus *bus, int phy_addr, int regnum);
+int wx_phy_write_reg_mdi_c22(struct mii_bus *bus, int phy_addr, int regnum, u16 value);
+int wx_phy_read_reg_mdi_c45(struct mii_bus *bus, int phy_addr, int devnum, int regnum);
+int wx_phy_write_reg_mdi_c45(struct mii_bus *bus, int phy_addr,
+			     int devnum, int regnum, u16 value);
+void wx_intr_enable(struct wx *wx, u64 qmask);
+void wx_irq_disable(struct wx *wx);
+int wx_check_flash_load(struct wx *wx, u32 check_bit);
+void wx_control_hw(struct wx *wx, bool drv);
+int wx_mng_present(struct wx *wx);
+int wx_host_interface_command(struct wx *wx, u32 *buffer,
+			      u32 length, u32 timeout, bool return_data);
+int wx_set_pps(struct wx *wx, bool enable, u64 nsec, u64 cycles);
+int wx_read_ee_hostif(struct wx *wx, u16 offset, u16 *data);
+int wx_read_ee_hostif_buffer(struct wx *wx,
+			     u16 offset, u16 words, u16 *data);
+void wx_init_eeprom_params(struct wx *wx);
+void wx_get_mac_addr(struct wx *wx, u8 *mac_addr);
+void wx_init_rx_addrs(struct wx *wx);
+void wx_mac_set_default_filter(struct wx *wx, u8 *addr);
+int wx_add_mac_filter(struct wx *wx, u8 *addr, u16 pool);
+int wx_del_mac_filter(struct wx *wx, u8 *addr, u16 pool);
+void wx_flush_sw_mac_table(struct wx *wx);
+u32 wx_mta_vector(struct wx *wx, u8 *mc_addr);
+int wx_set_mac(struct net_device *netdev, void *p);
+void wx_disable_rx(struct wx *wx);
+int wx_set_vf_spoofchk(struct net_device *netdev, int vf, bool setting);
+int wx_disable_sec_rx_path(struct wx *wx);
+void wx_enable_sec_rx_path(struct wx *wx);
+void wx_set_rx_mode(struct net_device *netdev);
+int wx_change_mtu(struct net_device *netdev, int new_mtu);
+void wx_disable_rx_queue(struct wx *wx, struct wx_ring *ring);
+void wx_enable_rx_queue(struct wx *wx, struct wx_ring *ring);
+u32 wx_rss_indir_tbl_entries(struct wx *wx);
+void wx_store_reta(struct wx *wx);
+void wx_store_rsskey(struct wx *wx);
+void wx_config_rss_field(struct wx *wx);
+void wx_enable_rss(struct wx *wx, bool enable);
+void wx_configure_rx(struct wx *wx);
+void wx_configure(struct wx *wx);
+void wx_start_hw(struct wx *wx);
+int wx_disable_pcie_master(struct wx *wx);
+int wx_stop_adapter(struct wx *wx);
+void wx_reset_mac(struct wx *wx);
+void wx_reset_misc(struct wx *wx);
+int wx_get_pcie_msix_counts(struct wx *wx, u16 *msix_count, u16 max_msix_count);
+int wx_sw_init(struct wx *wx);
+int wx_set_vfta(struct wx *wx, u32 vlan, u32 vind, bool vlan_on);
+int wx_vlan_rx_add_vid(struct net_device *netdev, __be16 proto, u16 vid);
+int wx_vlan_rx_kill_vid(struct net_device *netdev, __be16 proto, u16 vid);
+int wx_fc_enable(struct wx *wx, bool tx_pause, bool rx_pause);
+void wx_update_stats(struct wx *wx);
+void wx_clear_hw_cntrs(struct wx *wx);
+
+#endif /* _WX_HW_H_ */

linux-7.2.3/drivers/net/ethernet/wangxun/libwx/wx_lib.h

@@ -0,0 +1,45 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * WangXun Gigabit PCI Express Linux driver
+ * Copyright (c) 2019 - 2022 Beijing WangXun Technology Co., Ltd.
+ */
+
+#ifndef _WX_LIB_H_
+#define _WX_LIB_H_
+
+struct wx_dec_ptype wx_decode_ptype(const u8 ptype);
+void wx_alloc_rx_buffers(struct wx_ring *rx_ring, u16 cleaned_count);
+u16 wx_desc_unused(struct wx_ring *ring);
+netdev_tx_t wx_xmit_frame(struct sk_buff *skb,
+			  struct net_device *netdev);
+void wx_napi_enable_all(struct wx *wx);
+void wx_napi_disable_all(struct wx *wx);
+void wx_reset_interrupt_capability(struct wx *wx);
+void wx_clear_interrupt_scheme(struct wx *wx);
+int wx_init_interrupt_scheme(struct wx *wx);
+irqreturn_t wx_msix_clean_rings(int __always_unused irq, void *data);
+void wx_free_irq(struct wx *wx);
+int wx_setup_isb_resources(struct wx *wx);
+void wx_free_isb_resources(struct wx *wx);
+u32 wx_misc_isb(struct wx *wx, enum wx_isb_idx idx);
+void wx_write_eitr(struct wx_q_vector *q_vector);
+void wx_configure_vectors(struct wx *wx);
+void wx_clean_all_rx_rings(struct wx *wx);
+void wx_clean_all_tx_rings(struct wx *wx);
+void wx_free_resources(struct wx *wx);
+int wx_setup_resources(struct wx *wx);
+void wx_get_stats64(struct net_device *netdev,
+		    struct rtnl_link_stats64 *stats);
+int wx_set_features(struct net_device *netdev, netdev_features_t features);
+netdev_features_t wx_fix_features(struct net_device *netdev,
+				  netdev_features_t features);
+netdev_features_t wx_features_check(struct sk_buff *skb,
+				    struct net_device *netdev,
+				    netdev_features_t features);
+void wx_set_ring(struct wx *wx, u32 new_tx_count,
+		 u32 new_rx_count, struct wx_ring *temp_ring);
+void wx_service_event_schedule(struct wx *wx);
+void wx_service_event_complete(struct wx *wx);
+void wx_service_timer(struct timer_list *t);
+
+#endif /* _WX_LIB_H_ */

linux-7.2.3/drivers/net/ethernet/wangxun/libwx/wx_mbx.c

@@ -0,0 +1,418 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2015 - 2025 Beijing WangXun Technology Co., Ltd. */
+
+#include <linux/pci.h>
+#include "wx_type.h"
+#include "wx_mbx.h"
+
+/**
+ *  wx_obtain_mbx_lock_pf - obtain mailbox lock
+ *  @wx: pointer to the HW structure
+ *  @vf: the VF index
+ *
+ *  Return: return 0 on success and -EBUSY on failure
+ **/
+static int wx_obtain_mbx_lock_pf(struct wx *wx, u16 vf)
+{
+	int count = 5;
+	u32 mailbox;
+
+	while (count--) {
+		/* Take ownership of the buffer */
+		wr32(wx, WX_PXMAILBOX(vf), WX_PXMAILBOX_PFU);
+
+		/* reserve mailbox for vf use */
+		mailbox = rd32(wx, WX_PXMAILBOX(vf));
+		if (mailbox & WX_PXMAILBOX_PFU)
+			return 0;
+		else if (count)
+			udelay(10);
+	}
+	wx_err(wx, "Failed to obtain mailbox lock for PF%d", vf);
+
+	return -EBUSY;
+}
+
+static int wx_check_for_bit_pf(struct wx *wx, u32 mask, int index)
+{
+	u32 mbvficr = rd32(wx, WX_MBVFICR(index));
+
+	if (!(mbvficr & mask))
+		return -EBUSY;
+	wr32(wx, WX_MBVFICR(index), mask);
+
+	return 0;
+}
+
+/**
+ *  wx_check_for_ack_pf - checks to see if the VF has acked
+ *  @wx: pointer to the HW structure
+ *  @vf: the VF index
+ *
+ *  Return: return 0 if the VF has set the status bit or else -EBUSY
+ **/
+int wx_check_for_ack_pf(struct wx *wx, u16 vf)
+{
+	u32 index = vf / 16, vf_bit = vf % 16;
+
+	return wx_check_for_bit_pf(wx,
+				   FIELD_PREP(WX_MBVFICR_VFACK_MASK,
+					      BIT(vf_bit)),
+				   index);
+}
+
+/**
+ *  wx_check_for_msg_pf - checks to see if the VF has sent mail
+ *  @wx: pointer to the HW structure
+ *  @vf: the VF index
+ *
+ *  Return: return 0 if the VF has got req bit or else -EBUSY
+ **/
+int wx_check_for_msg_pf(struct wx *wx, u16 vf)
+{
+	u32 index = vf / 16, vf_bit = vf % 16;
+
+	return wx_check_for_bit_pf(wx,
+				   FIELD_PREP(WX_MBVFICR_VFREQ_MASK,
+					      BIT(vf_bit)),
+				   index);
+}
+
+/**
+ *  wx_write_mbx_pf - Places a message in the mailbox
+ *  @wx: pointer to the HW structure
+ *  @msg: The message buffer
+ *  @size: Length of buffer
+ *  @vf: the VF index
+ *
+ *  Return: return 0 on success and -EINVAL/-EBUSY on failure
+ **/
+int wx_write_mbx_pf(struct wx *wx, u32 *msg, u16 size, u16 vf)
+{
+	struct wx_mbx_info *mbx = &wx->mbx;
+	int ret, i;
+
+	/* mbx->size is up to 15 */
+	if (size > mbx->size) {
+		wx_err(wx, "Invalid mailbox message size %d", size);
+		return -EINVAL;
+	}
+
+	/* lock the mailbox to prevent pf/vf race condition */
+	ret = wx_obtain_mbx_lock_pf(wx, vf);
+	if (ret)
+		return ret;
+
+	/* flush msg and acks as we are overwriting the message buffer */
+	wx_check_for_msg_pf(wx, vf);
+	wx_check_for_ack_pf(wx, vf);
+
+	/* copy the caller specified message to the mailbox memory buffer */
+	for (i = 0; i < size; i++)
+		wr32a(wx, WX_PXMBMEM(vf), i, msg[i]);
+
+	/* Interrupt VF to tell it a message has been sent and release buffer */
+	/* set mirrored mailbox flags */
+	wr32a(wx, WX_PXMBMEM(vf), WX_VXMAILBOX_SIZE, WX_PXMAILBOX_STS);
+	wr32(wx, WX_PXMAILBOX(vf), WX_PXMAILBOX_STS);
+
+	return 0;
+}
+
+/**
+ *  wx_read_mbx_pf - Read a message from the mailbox
+ *  @wx: pointer to the HW structure
+ *  @msg: The message buffer
+ *  @size: Length of buffer
+ *  @vf: the VF index
+ *
+ *  Return: return 0 on success and -EBUSY on failure
+ **/
+int wx_read_mbx_pf(struct wx *wx, u32 *msg, u16 size, u16 vf)
+{
+	struct wx_mbx_info *mbx = &wx->mbx;
+	int ret;
+	u16 i;
+
+	/* limit read to size of mailbox and mbx->size is up to 15 */
+	if (size > mbx->size)
+		size = mbx->size;
+
+	/* lock the mailbox to prevent pf/vf race condition */
+	ret = wx_obtain_mbx_lock_pf(wx, vf);
+	if (ret)
+		return ret;
+
+	for (i = 0; i < size; i++)
+		msg[i] = rd32a(wx, WX_PXMBMEM(vf), i);
+
+	/* Acknowledge the message and release buffer */
+	/* set mirrored mailbox flags */
+	wr32a(wx, WX_PXMBMEM(vf), WX_VXMAILBOX_SIZE, WX_PXMAILBOX_ACK);
+	wr32(wx, WX_PXMAILBOX(vf), WX_PXMAILBOX_ACK);
+
+	return 0;
+}
+
+/**
+ *  wx_check_for_rst_pf - checks to see if the VF has reset
+ *  @wx: pointer to the HW structure
+ *  @vf: the VF index
+ *
+ *  Return: return 0 on success and -EBUSY on failure
+ **/
+int wx_check_for_rst_pf(struct wx *wx, u16 vf)
+{
+	u32 reg_offset = WX_VF_REG_OFFSET(vf);
+	u32 vf_shift = WX_VF_IND_SHIFT(vf);
+	u32 vflre = 0;
+
+	vflre = rd32(wx, WX_VFLRE(reg_offset));
+	if (!(vflre & BIT(vf_shift)))
+		return -EBUSY;
+	wr32(wx, WX_VFLREC(reg_offset), BIT(vf_shift));
+
+	return 0;
+}
+
+static u32 wx_read_v2p_mailbox(struct wx *wx)
+{
+	u32 mailbox = rd32(wx, WX_VXMAILBOX);
+
+	mailbox |= wx->mbx.mailbox;
+	wx->mbx.mailbox |= mailbox & WX_VXMAILBOX_R2C_BITS;
+
+	return mailbox;
+}
+
+static u32 wx_mailbox_get_lock_vf(struct wx *wx)
+{
+	wr32(wx, WX_VXMAILBOX, WX_VXMAILBOX_VFU);
+	return wx_read_v2p_mailbox(wx);
+}
+
+/**
+ *  wx_obtain_mbx_lock_vf - obtain mailbox lock
+ *  @wx: pointer to the HW structure
+ *
+ *  Return: return 0 on success and -EBUSY on failure
+ **/
+static int wx_obtain_mbx_lock_vf(struct wx *wx)
+{
+	int count = 5, ret;
+	u32 mailbox;
+
+	ret = readx_poll_timeout_atomic(wx_mailbox_get_lock_vf, wx, mailbox,
+					(mailbox & WX_VXMAILBOX_VFU),
+					1, count);
+	if (ret)
+		wx_err(wx, "Failed to obtain mailbox lock for VF.\n");
+
+	return ret;
+}
+
+static int wx_check_for_bit_vf(struct wx *wx, u32 mask)
+{
+	u32 mailbox = wx_read_v2p_mailbox(wx);
+
+	wx->mbx.mailbox &= ~mask;
+
+	return (mailbox & mask ? 0 : -EBUSY);
+}
+
+/**
+ *  wx_check_for_ack_vf - checks to see if the PF has ACK'd
+ *  @wx: pointer to the HW structure
+ *
+ *  Return: return 0 if the PF has set the status bit or else -EBUSY
+ **/
+static int wx_check_for_ack_vf(struct wx *wx)
+{
+	/* read clear the pf ack bit */
+	return wx_check_for_bit_vf(wx, WX_VXMAILBOX_PFACK);
+}
+
+/**
+ *  wx_check_for_msg_vf - checks to see if the PF has sent mail
+ *  @wx: pointer to the HW structure
+ *
+ *  Return: return 0 if the PF has got req bit or else -EBUSY
+ **/
+int wx_check_for_msg_vf(struct wx *wx)
+{
+	/* read clear the pf sts bit */
+	return wx_check_for_bit_vf(wx, WX_VXMAILBOX_PFSTS);
+}
+
+/**
+ *  wx_check_for_rst_vf - checks to see if the PF has reset
+ *  @wx: pointer to the HW structure
+ *
+ *  Return: return 0 if the PF has set the reset done and -EBUSY on failure
+ **/
+int wx_check_for_rst_vf(struct wx *wx)
+{
+	/* read clear the pf reset done bit */
+	return wx_check_for_bit_vf(wx,
+				   WX_VXMAILBOX_RSTD |
+				   WX_VXMAILBOX_RSTI);
+}
+
+/**
+ *  wx_poll_for_msg - Wait for message notification
+ *  @wx: pointer to the HW structure
+ *
+ *  Return: return 0 if the VF has successfully received a message notification
+ **/
+static int wx_poll_for_msg(struct wx *wx)
+{
+	struct wx_mbx_info *mbx = &wx->mbx;
+	u32 val;
+
+	return readx_poll_timeout_atomic(wx_check_for_msg_vf, wx, val,
+					 (val == 0), mbx->udelay, mbx->timeout);
+}
+
+/**
+ *  wx_poll_for_ack - Wait for message acknowledgment
+ *  @wx: pointer to the HW structure
+ *
+ *  Return: return 0 if the VF has successfully received a message ack
+ **/
+static int wx_poll_for_ack(struct wx *wx)
+{
+	struct wx_mbx_info *mbx = &wx->mbx;
+	u32 val;
+
+	return readx_poll_timeout_atomic(wx_check_for_ack_vf, wx, val,
+					 (val == 0), mbx->udelay, mbx->timeout);
+}
+
+/**
+ *  wx_read_posted_mbx - Wait for message notification and receive message
+ *  @wx: pointer to the HW structure
+ *  @msg: The message buffer
+ *  @size: Length of buffer
+ *
+ *  Return: returns 0 if it successfully received a message notification and
+ *  copied it into the receive buffer.
+ **/
+int wx_read_posted_mbx(struct wx *wx, u32 *msg, u16 size)
+{
+	int ret;
+
+	ret = wx_poll_for_msg(wx);
+	/* if ack received read message, otherwise we timed out */
+	if (ret)
+		return ret;
+
+	return wx_read_mbx_vf(wx, msg, size);
+}
+
+/**
+ *  wx_write_posted_mbx - Write a message to the mailbox, wait for ack
+ *  @wx: pointer to the HW structure
+ *  @msg: The message buffer
+ *  @size: Length of buffer
+ *
+ *  Return: returns 0 if it successfully copied message into the buffer and
+ *  received an ack to that message within delay * timeout period
+ **/
+int wx_write_posted_mbx(struct wx *wx, u32 *msg, u16 size)
+{
+	int ret;
+
+	/* send msg */
+	ret = wx_write_mbx_vf(wx, msg, size);
+	/* if msg sent wait until we receive an ack */
+	if (ret)
+		return ret;
+
+	return wx_poll_for_ack(wx);
+}
+
+/**
+ *  wx_write_mbx_vf - Write a message to the mailbox
+ *  @wx: pointer to the HW structure
+ *  @msg: The message buffer
+ *  @size: Length of buffer
+ *
+ *  Return: returns 0 if it successfully copied message into the buffer
+ **/
+int wx_write_mbx_vf(struct wx *wx, u32 *msg, u16 size)
+{
+	struct wx_mbx_info *mbx = &wx->mbx;
+	int ret, i;
+
+	/* mbx->size is up to 15 */
+	if (size > mbx->size) {
+		wx_err(wx, "Invalid mailbox message size %d", size);
+		return -EINVAL;
+	}
+
+	/* lock the mailbox to prevent pf/vf race condition */
+	ret = wx_obtain_mbx_lock_vf(wx);
+	if (ret)
+		return ret;
+
+	/* flush msg and acks as we are overwriting the message buffer */
+	wx_check_for_msg_vf(wx);
+	wx_check_for_ack_vf(wx);
+
+	/* copy the caller specified message to the mailbox memory buffer */
+	for (i = 0; i < size; i++)
+		wr32a(wx, WX_VXMBMEM, i, msg[i]);
+
+	/* Drop VFU and interrupt the PF to tell it a message has been sent */
+	wr32(wx, WX_VXMAILBOX, WX_VXMAILBOX_REQ);
+
+	return 0;
+}
+
+/**
+ *  wx_read_mbx_vf - Reads a message from the inbox intended for vf
+ *  @wx: pointer to the HW structure
+ *  @msg: The message buffer
+ *  @size: Length of buffer
+ *
+ *  Return: returns 0 if it successfully copied message into the buffer
+ **/
+int wx_read_mbx_vf(struct wx *wx, u32 *msg, u16 size)
+{
+	struct wx_mbx_info *mbx = &wx->mbx;
+	int ret, i;
+
+	/* limit read to size of mailbox and mbx->size is up to 15 */
+	if (size > mbx->size)
+		size = mbx->size;
+
+	/* lock the mailbox to prevent pf/vf race condition */
+	ret = wx_obtain_mbx_lock_vf(wx);
+	if (ret)
+		return ret;
+
+	/* copy the message from the mailbox memory buffer */
+	for (i = 0; i < size; i++)
+		msg[i] = rd32a(wx, WX_VXMBMEM, i);
+
+	/* Acknowledge receipt and release mailbox, then we're done */
+	wr32(wx, WX_VXMAILBOX, WX_VXMAILBOX_ACK);
+
+	return 0;
+}
+
+int wx_init_mbx_params_vf(struct wx *wx)
+{
+	wx->vfinfo = kzalloc_obj(struct vf_data_storage);
+	if (!wx->vfinfo)
+		return -ENOMEM;
+
+	/* Initialize mailbox parameters */
+	wx->mbx.size = WX_VXMAILBOX_SIZE;
+	wx->mbx.mailbox = WX_VXMAILBOX;
+	wx->mbx.udelay = 10;
+	wx->mbx.timeout = 1000;
+
+	return 0;
+}
+EXPORT_SYMBOL(wx_init_mbx_params_vf);

linux-7.2.3/drivers/net/ethernet/wangxun/libwx/wx_mbx.h

@@ -0,0 +1,99 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2015 - 2025 Beijing WangXun Technology Co., Ltd. */
+#ifndef _WX_MBX_H_
+#define _WX_MBX_H_
+
+#define WX_VXMAILBOX_SIZE    15
+
+/* PF Registers */
+#define WX_PXMAILBOX(i)      (0x600 + (4 * (i))) /* i=[0,63] */
+#define WX_PXMAILBOX_STS     BIT(0) /* Initiate message send to VF */
+#define WX_PXMAILBOX_ACK     BIT(1) /* Ack message recv'd from VF */
+#define WX_PXMAILBOX_PFU     BIT(3) /* PF owns the mailbox buffer */
+
+/* VF Registers */
+#define WX_VXMAILBOX         0x600
+#define WX_VXMAILBOX_REQ     BIT(0) /* Request for PF Ready bit */
+#define WX_VXMAILBOX_ACK     BIT(1) /* Ack PF message received */
+#define WX_VXMAILBOX_VFU     BIT(2) /* VF owns the mailbox buffer */
+#define WX_VXMAILBOX_PFU     BIT(3) /* PF owns the mailbox buffer */
+#define WX_VXMAILBOX_PFSTS   BIT(4) /* PF wrote a message in the MB */
+#define WX_VXMAILBOX_PFACK   BIT(5) /* PF ack the previous VF msg */
+#define WX_VXMAILBOX_RSTI    BIT(6) /* PF has reset indication */
+#define WX_VXMAILBOX_RSTD    BIT(7) /* PF has indicated reset done */
+#define WX_VXMAILBOX_R2C_BITS (WX_VXMAILBOX_RSTD | \
+	    WX_VXMAILBOX_PFSTS | WX_VXMAILBOX_PFACK)
+
+#define WX_VXMBMEM           0x00C00 /* 16*4B */
+#define WX_PXMBMEM(i)        (0x5000 + (64 * (i))) /* i=[0,63] */
+
+#define WX_VFLRE(i)          (0x4A0 + (4 * (i))) /* i=[0,1] */
+#define WX_VFLREC(i)         (0x4A8 + (4 * (i))) /* i=[0,1] */
+
+/* SR-IOV specific macros */
+#define WX_MBVFICR(i)         (0x480 + (4 * (i))) /* i=[0,3] */
+#define WX_MBVFICR_VFREQ_MASK GENMASK(15, 0)
+#define WX_MBVFICR_VFACK_MASK GENMASK(31, 16)
+
+#define WX_VT_MSGTYPE_ACK     BIT(31)
+#define WX_VT_MSGTYPE_NACK    BIT(30)
+#define WX_VT_MSGTYPE_CTS     BIT(29)
+#define WX_VT_MSGINFO_SHIFT   16
+#define WX_VT_MSGINFO_MASK    GENMASK(23, 16)
+
+enum wx_pfvf_api_rev {
+	wx_mbox_api_null,
+	wx_mbox_api_13 = 4,      /* API version 1.3 */
+	wx_mbox_api_unknown, /* indicates that API version is not known */
+};
+
+/* mailbox API */
+#define WX_VF_RESET                  0x01 /* VF requests reset */
+#define WX_VF_SET_MAC_ADDR           0x02 /* VF requests PF to set MAC addr */
+#define WX_VF_SET_MULTICAST          0x03 /* VF requests PF to set MC addr */
+#define WX_VF_SET_VLAN               0x04 /* VF requests PF to set VLAN */
+#define WX_VF_SET_LPE                0x05 /* VF requests PF to set VMOLR.LPE */
+#define WX_VF_SET_MACVLAN            0x06 /* VF requests PF unicast filter */
+#define WX_VF_API_NEGOTIATE          0x08 /* negotiate API version */
+#define WX_VF_GET_QUEUES             0x09 /* get queue configuration */
+#define WX_VF_GET_RETA               0x0a /* VF request for RETA */
+#define WX_VF_GET_RSS_KEY            0x0b /* get RSS key */
+#define WX_VF_UPDATE_XCAST_MODE      0x0c
+#define WX_VF_GET_LINK_STATE         0x10 /* get vf link state */
+#define WX_VF_GET_FW_VERSION         0x11 /* get fw version */
+
+#define WX_VF_BACKUP                 0x8001 /* VF requests backup */
+
+#define WX_PF_CONTROL_MSG            BIT(8) /* PF control message */
+#define WX_PF_NOFITY_VF_LINK_STATUS  0x1
+#define WX_PF_NOFITY_VF_NET_NOT_RUNNING BIT(31)
+
+#define WX_VF_TX_QUEUES              1 /* number of Tx queues supported */
+#define WX_VF_RX_QUEUES              2 /* number of Rx queues supported */
+#define WX_VF_TRANS_VLAN             3 /* Indication of port vlan */
+#define WX_VF_DEF_QUEUE              4 /* Default queue offset */
+
+#define WX_VF_PERMADDR_MSG_LEN       4
+
+enum wxvf_xcast_modes {
+	WXVF_XCAST_MODE_NONE = 0,
+	WXVF_XCAST_MODE_MULTI,
+	WXVF_XCAST_MODE_ALLMULTI,
+	WXVF_XCAST_MODE_PROMISC,
+};
+
+int wx_write_mbx_pf(struct wx *wx, u32 *msg, u16 size, u16 vf);
+int wx_read_mbx_pf(struct wx *wx, u32 *msg, u16 size, u16 vf);
+int wx_check_for_rst_pf(struct wx *wx, u16 mbx_id);
+int wx_check_for_msg_pf(struct wx *wx, u16 mbx_id);
+int wx_check_for_ack_pf(struct wx *wx, u16 mbx_id);
+
+int wx_read_posted_mbx(struct wx *wx, u32 *msg, u16 size);
+int wx_write_posted_mbx(struct wx *wx, u32 *msg, u16 size);
+int wx_check_for_rst_vf(struct wx *wx);
+int wx_check_for_msg_vf(struct wx *wx);
+int wx_read_mbx_vf(struct wx *wx, u32 *msg, u16 size);
+int wx_write_mbx_vf(struct wx *wx, u32 *msg, u16 size);
+int wx_init_mbx_params_vf(struct wx *wx);
+
+#endif /* _WX_MBX_H_ */

linux-7.2.3/drivers/net/ethernet/wangxun/libwx/wx_ptp.c

@@ -0,0 +1,905 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2015 - 2025 Beijing WangXun Technology Co., Ltd. */
+/* Copyright (c) 1999 - 2025 Intel Corporation. */
+
+#include <linux/ptp_classify.h>
+#include <linux/clocksource.h>
+#include <linux/pci.h>
+
+#include "wx_type.h"
+#include "wx_ptp.h"
+#include "wx_hw.h"
+
+#define WX_INCVAL_10GB        0xCCCCCC
+#define WX_INCVAL_1GB         0x800000
+#define WX_INCVAL_100         0xA00000
+#define WX_INCVAL_10          0xC7F380
+#define WX_INCVAL_EM          0x2000000
+#define WX_INCVAL_AML         0xA00000
+
+#define WX_INCVAL_SHIFT_10GB  20
+#define WX_INCVAL_SHIFT_1GB   18
+#define WX_INCVAL_SHIFT_100   15
+#define WX_INCVAL_SHIFT_10    12
+#define WX_INCVAL_SHIFT_EM    22
+#define WX_INCVAL_SHIFT_AML   21
+
+#define WX_OVERFLOW_PERIOD    (HZ * 30)
+#define WX_PTP_TX_TIMEOUT     (HZ)
+
+#define WX_1588_PPS_WIDTH_EM  120
+
+#define WX_NS_PER_SEC         1000000000ULL
+
+static u64 wx_ptp_timecounter_cyc2time(struct wx *wx, u64 timestamp)
+{
+	unsigned int seq;
+	u64 ns;
+
+	do {
+		seq = read_seqbegin(&wx->hw_tc_lock);
+		ns = timecounter_cyc2time(&wx->hw_tc, timestamp);
+	} while (read_seqretry(&wx->hw_tc_lock, seq));
+
+	return ns;
+}
+
+static u64 wx_ptp_readtime(struct wx *wx, struct ptp_system_timestamp *sts)
+{
+	u32 timeh1, timeh2, timel;
+
+	timeh1 = rd32ptp(wx, WX_TSC_1588_SYSTIMH);
+	ptp_read_system_prets(sts);
+	timel = rd32ptp(wx, WX_TSC_1588_SYSTIML);
+	ptp_read_system_postts(sts);
+	timeh2 = rd32ptp(wx, WX_TSC_1588_SYSTIMH);
+
+	if (timeh1 != timeh2) {
+		ptp_read_system_prets(sts);
+		timel = rd32ptp(wx, WX_TSC_1588_SYSTIML);
+		ptp_read_system_prets(sts);
+	}
+	return (u64)timel | (u64)timeh2 << 32;
+}
+
+static int wx_ptp_adjfine(struct ptp_clock_info *ptp, long ppb)
+{
+	struct wx *wx = container_of(ptp, struct wx, ptp_caps);
+	u64 incval, mask;
+
+	smp_mb(); /* Force any pending update before accessing. */
+	incval = READ_ONCE(wx->base_incval);
+	incval = adjust_by_scaled_ppm(incval, ppb);
+
+	mask = (wx->mac.type == wx_mac_em) ? 0x7FFFFFF : 0xFFFFFF;
+	incval &= mask;
+	if (wx->mac.type != wx_mac_em)
+		incval |= 2 << 24;
+
+	wr32ptp(wx, WX_TSC_1588_INC, incval);
+
+	return 0;
+}
+
+static int wx_ptp_adjtime(struct ptp_clock_info *ptp, s64 delta)
+{
+	struct wx *wx = container_of(ptp, struct wx, ptp_caps);
+	unsigned long flags;
+
+	write_seqlock_irqsave(&wx->hw_tc_lock, flags);
+	timecounter_adjtime(&wx->hw_tc, delta);
+	write_sequnlock_irqrestore(&wx->hw_tc_lock, flags);
+
+	if (wx->ptp_setup_sdp)
+		wx->ptp_setup_sdp(wx);
+
+	return 0;
+}
+
+static int wx_ptp_gettimex64(struct ptp_clock_info *ptp,
+			     struct timespec64 *ts,
+			     struct ptp_system_timestamp *sts)
+{
+	struct wx *wx = container_of(ptp, struct wx, ptp_caps);
+	u64 ns, stamp;
+
+	stamp = wx_ptp_readtime(wx, sts);
+	ns = wx_ptp_timecounter_cyc2time(wx, stamp);
+	*ts = ns_to_timespec64(ns);
+
+	return 0;
+}
+
+static int wx_ptp_settime64(struct ptp_clock_info *ptp,
+			    const struct timespec64 *ts)
+{
+	struct wx *wx = container_of(ptp, struct wx, ptp_caps);
+	unsigned long flags;
+	u64 ns;
+
+	ns = timespec64_to_ns(ts);
+	/* reset the timecounter */
+	write_seqlock_irqsave(&wx->hw_tc_lock, flags);
+	timecounter_init(&wx->hw_tc, &wx->hw_cc, ns);
+	write_sequnlock_irqrestore(&wx->hw_tc_lock, flags);
+
+	if (wx->ptp_setup_sdp)
+		wx->ptp_setup_sdp(wx);
+
+	return 0;
+}
+
+/**
+ * wx_ptp_clear_tx_timestamp - utility function to clear Tx timestamp state
+ * @wx: the private board structure
+ *
+ * This function should be called whenever the state related to a Tx timestamp
+ * needs to be cleared. This helps ensure that all related bits are reset for
+ * the next Tx timestamp event.
+ */
+static void wx_ptp_clear_tx_timestamp(struct wx *wx)
+{
+	rd32ptp(wx, WX_TSC_1588_STMPH);
+	if (wx->ptp_tx_skb) {
+		dev_kfree_skb_any(wx->ptp_tx_skb);
+		wx->ptp_tx_skb = NULL;
+	}
+	clear_bit_unlock(WX_STATE_PTP_TX_IN_PROGRESS, wx->state);
+}
+
+/**
+ * wx_ptp_convert_to_hwtstamp - convert register value to hw timestamp
+ * @wx: private board structure
+ * @hwtstamp: stack timestamp structure
+ * @timestamp: unsigned 64bit system time value
+ *
+ * We need to convert the adapter's RX/TXSTMP registers into a hwtstamp value
+ * which can be used by the stack's ptp functions.
+ *
+ * The lock is used to protect consistency of the cyclecounter and the SYSTIME
+ * registers. However, it does not need to protect against the Rx or Tx
+ * timestamp registers, as there can't be a new timestamp until the old one is
+ * unlatched by reading.
+ *
+ * In addition to the timestamp in hardware, some controllers need a software
+ * overflow cyclecounter, and this function takes this into account as well.
+ **/
+static void wx_ptp_convert_to_hwtstamp(struct wx *wx,
+				       struct skb_shared_hwtstamps *hwtstamp,
+				       u64 timestamp)
+{
+	u64 ns;
+
+	ns = wx_ptp_timecounter_cyc2time(wx, timestamp);
+	hwtstamp->hwtstamp = ns_to_ktime(ns);
+}
+
+/**
+ * wx_ptp_tx_hwtstamp - utility function which checks for TX time stamp
+ * @wx: the private board struct
+ *
+ * if the timestamp is valid, we convert it into the timecounter ns
+ * value, then store that result into the shhwtstamps structure which
+ * is passed up the network stack
+ */
+static void wx_ptp_tx_hwtstamp(struct wx *wx)
+{
+	struct skb_shared_hwtstamps shhwtstamps;
+	struct sk_buff *skb = wx->ptp_tx_skb;
+	u64 regval = 0;
+
+	regval |= (u64)rd32ptp(wx, WX_TSC_1588_STMPL);
+	regval |= (u64)rd32ptp(wx, WX_TSC_1588_STMPH) << 32;
+
+	wx_ptp_convert_to_hwtstamp(wx, &shhwtstamps, regval);
+
+	wx->ptp_tx_skb = NULL;
+	clear_bit_unlock(WX_STATE_PTP_TX_IN_PROGRESS, wx->state);
+	skb_tstamp_tx(skb, &shhwtstamps);
+	dev_kfree_skb_any(skb);
+	wx->tx_hwtstamp_pkts++;
+}
+
+static int wx_ptp_tx_hwtstamp_work(struct wx *wx)
+{
+	u32 tsynctxctl;
+
+	/* we have to have a valid skb to poll for a timestamp */
+	if (!wx->ptp_tx_skb) {
+		wx_ptp_clear_tx_timestamp(wx);
+		return 0;
+	}
+
+	/* stop polling once we have a valid timestamp */
+	tsynctxctl = rd32ptp(wx, WX_TSC_1588_CTL);
+	if (tsynctxctl & WX_TSC_1588_CTL_VALID) {
+		wx_ptp_tx_hwtstamp(wx);
+		return 0;
+	}
+
+	return -1;
+}
+
+/**
+ * wx_ptp_overflow_check - watchdog task to detect SYSTIME overflow
+ * @wx: pointer to wx struct
+ *
+ * this watchdog task periodically reads the timecounter
+ * in order to prevent missing when the system time registers wrap
+ * around. This needs to be run approximately twice a minute for the fastest
+ * overflowing hardware. We run it for all hardware since it shouldn't have a
+ * large impact.
+ */
+static void wx_ptp_overflow_check(struct wx *wx)
+{
+	bool timeout = time_is_before_jiffies(wx->last_overflow_check +
+					      WX_OVERFLOW_PERIOD);
+	unsigned long flags;
+
+	if (timeout) {
+		/* Update the timecounter */
+		write_seqlock_irqsave(&wx->hw_tc_lock, flags);
+		timecounter_read(&wx->hw_tc);
+		write_sequnlock_irqrestore(&wx->hw_tc_lock, flags);
+
+		wx->last_overflow_check = jiffies;
+	}
+}
+
+/**
+ * wx_ptp_rx_hang - detect error case when Rx timestamp registers latched
+ * @wx: pointer to wx struct
+ *
+ * this watchdog task is scheduled to detect error case where hardware has
+ * dropped an Rx packet that was timestamped when the ring is full. The
+ * particular error is rare but leaves the device in a state unable to
+ * timestamp any future packets.
+ */
+static void wx_ptp_rx_hang(struct wx *wx)
+{
+	struct wx_ring *rx_ring;
+	unsigned long rx_event;
+	u32 tsyncrxctl;
+	int n;
+
+	tsyncrxctl = rd32(wx, WX_PSR_1588_CTL);
+
+	/* if we don't have a valid timestamp in the registers, just update the
+	 * timeout counter and exit
+	 */
+	if (!(tsyncrxctl & WX_PSR_1588_CTL_VALID)) {
+		wx->last_rx_ptp_check = jiffies;
+		return;
+	}
+
+	/* determine the most recent watchdog or rx_timestamp event */
+	rx_event = wx->last_rx_ptp_check;
+	for (n = 0; n < wx->num_rx_queues; n++) {
+		rx_ring = wx->rx_ring[n];
+		if (time_after(rx_ring->last_rx_timestamp, rx_event))
+			rx_event = rx_ring->last_rx_timestamp;
+	}
+
+	/* only need to read the high RXSTMP register to clear the lock */
+	if (time_is_before_jiffies(rx_event + 5 * HZ)) {
+		rd32(wx, WX_PSR_1588_STMPH);
+		wx->last_rx_ptp_check = jiffies;
+
+		wx->rx_hwtstamp_cleared++;
+		dev_warn(&wx->pdev->dev, "clearing RX Timestamp hang");
+	}
+}
+
+/**
+ * wx_ptp_tx_hang - detect error case where Tx timestamp never finishes
+ * @wx: private network wx structure
+ */
+static void wx_ptp_tx_hang(struct wx *wx)
+{
+	bool timeout = time_is_before_jiffies(wx->ptp_tx_start +
+					      WX_PTP_TX_TIMEOUT);
+
+	if (!wx->ptp_tx_skb)
+		return;
+
+	if (!test_bit(WX_STATE_PTP_TX_IN_PROGRESS, wx->state))
+		return;
+
+	/* If we haven't received a timestamp within the timeout, it is
+	 * reasonable to assume that it will never occur, so we can unlock the
+	 * timestamp bit when this occurs.
+	 */
+	if (timeout) {
+		wx_ptp_clear_tx_timestamp(wx);
+		wx->tx_hwtstamp_timeouts++;
+		dev_warn(&wx->pdev->dev, "clearing Tx timestamp hang\n");
+	}
+}
+
+static long wx_ptp_do_aux_work(struct ptp_clock_info *ptp)
+{
+	struct wx *wx = container_of(ptp, struct wx, ptp_caps);
+	int ts_done;
+
+	ts_done = wx_ptp_tx_hwtstamp_work(wx);
+
+	wx_ptp_overflow_check(wx);
+	if (unlikely(test_bit(WX_FLAG_RX_HWTSTAMP_IN_REGISTER,
+			      wx->flags)))
+		wx_ptp_rx_hang(wx);
+	wx_ptp_tx_hang(wx);
+
+	return ts_done ? 1 : HZ;
+}
+
+static u64 wx_ptp_trigger_calc(struct wx *wx)
+{
+	struct cyclecounter *cc = &wx->hw_cc;
+	unsigned long flags;
+	u64 ns = 0;
+	u32 rem;
+
+	/* Read the current clock time, and save the cycle counter value */
+	write_seqlock_irqsave(&wx->hw_tc_lock, flags);
+	ns = timecounter_read(&wx->hw_tc);
+	wx->pps_edge_start = wx->hw_tc.cycle_last;
+	write_sequnlock_irqrestore(&wx->hw_tc_lock, flags);
+	wx->pps_edge_end = wx->pps_edge_start;
+
+	/* Figure out how far past the next second we are */
+	div_u64_rem(ns, WX_NS_PER_SEC, &rem);
+
+	/* Figure out how many nanoseconds to add to round the clock edge up
+	 * to the next full second
+	 */
+	rem = (WX_NS_PER_SEC - rem);
+
+	/* Adjust the clock edge to align with the next full second. */
+	wx->pps_edge_start += div_u64(((u64)rem << cc->shift), cc->mult);
+	wx->pps_edge_end += div_u64(((u64)(rem + wx->pps_width) <<
+				     cc->shift), cc->mult);
+
+	return (ns + rem);
+}
+
+static int wx_ptp_setup_sdp(struct wx *wx)
+{
+	struct cyclecounter *cc = &wx->hw_cc;
+	u32 tsauxc;
+	u64 nsec;
+
+	if (wx->pps_width >= WX_NS_PER_SEC) {
+		wx_err(wx, "PTP pps width cannot be longer than 1s!\n");
+		return -EINVAL;
+	}
+
+	/* disable the pin first */
+	wr32ptp(wx, WX_TSC_1588_AUX_CTL, 0);
+	WX_WRITE_FLUSH(wx);
+
+	if (!test_bit(WX_FLAG_PTP_PPS_ENABLED, wx->flags)) {
+		if (wx->pps_enabled) {
+			wx->pps_enabled = false;
+			wx_set_pps(wx, false, 0, 0);
+		}
+		return 0;
+	}
+
+	wx->pps_enabled = true;
+	nsec = wx_ptp_trigger_calc(wx);
+	wx_set_pps(wx, wx->pps_enabled, nsec, wx->pps_edge_start);
+
+	tsauxc = WX_TSC_1588_AUX_CTL_PLSG | WX_TSC_1588_AUX_CTL_EN_TT0 |
+		WX_TSC_1588_AUX_CTL_EN_TT1 | WX_TSC_1588_AUX_CTL_EN_TS0;
+	wr32ptp(wx, WX_TSC_1588_TRGT_L(0), (u32)wx->pps_edge_start);
+	wr32ptp(wx, WX_TSC_1588_TRGT_H(0), (u32)(wx->pps_edge_start >> 32));
+	wr32ptp(wx, WX_TSC_1588_TRGT_L(1), (u32)wx->pps_edge_end);
+	wr32ptp(wx, WX_TSC_1588_TRGT_H(1), (u32)(wx->pps_edge_end >> 32));
+	wr32ptp(wx, WX_TSC_1588_SDP(0),
+		WX_TSC_1588_SDP_FUN_SEL_TT0 | WX_TSC_1588_SDP_OUT_LEVEL_H);
+	wr32ptp(wx, WX_TSC_1588_SDP(1), WX_TSC_1588_SDP_FUN_SEL_TS0);
+	wr32ptp(wx, WX_TSC_1588_AUX_CTL, tsauxc);
+	wr32ptp(wx, WX_TSC_1588_INT_EN, WX_TSC_1588_INT_EN_TT1);
+	WX_WRITE_FLUSH(wx);
+
+	/* Adjust the clock edge to align with the next full second. */
+	wx->sec_to_cc = div_u64(((u64)WX_NS_PER_SEC << cc->shift), cc->mult);
+
+	return 0;
+}
+
+static int wx_ptp_feature_enable(struct ptp_clock_info *ptp,
+				 struct ptp_clock_request *rq, int on)
+{
+	struct wx *wx = container_of(ptp, struct wx, ptp_caps);
+
+	/**
+	 * When PPS is enabled, unmask the interrupt for the ClockOut
+	 * feature, so that the interrupt handler can send the PPS
+	 * event when the clock SDP triggers. Clear mask when PPS is
+	 * disabled
+	 */
+	if (rq->type != PTP_CLK_REQ_PEROUT || !wx->ptp_setup_sdp)
+		return -EOPNOTSUPP;
+
+	/* Reject requests with unsupported flags */
+	if (rq->perout.flags & ~(PTP_PEROUT_DUTY_CYCLE |
+				 PTP_PEROUT_PHASE))
+		return -EOPNOTSUPP;
+
+	if (rq->perout.phase.sec || rq->perout.phase.nsec) {
+		wx_err(wx, "Absolute start time not supported.\n");
+		return -EINVAL;
+	}
+
+	if (rq->perout.period.sec != 1 || rq->perout.period.nsec) {
+		wx_err(wx, "Only 1pps is supported.\n");
+		return -EINVAL;
+	}
+
+	if (rq->perout.flags & PTP_PEROUT_DUTY_CYCLE) {
+		struct timespec64 ts_on;
+
+		ts_on.tv_sec = rq->perout.on.sec;
+		ts_on.tv_nsec = rq->perout.on.nsec;
+		wx->pps_width = timespec64_to_ns(&ts_on);
+	} else {
+		wx->pps_width = 120000000;
+	}
+
+	if (on)
+		set_bit(WX_FLAG_PTP_PPS_ENABLED, wx->flags);
+	else
+		clear_bit(WX_FLAG_PTP_PPS_ENABLED, wx->flags);
+
+	return wx->ptp_setup_sdp(wx);
+}
+
+void wx_ptp_check_pps_event(struct wx *wx)
+{
+	u32 tsauxc, int_status;
+
+	/* this check is necessary in case the interrupt was enabled via some
+	 * alternative means (ex. debug_fs). Better to check here than
+	 * everywhere that calls this function.
+	 */
+	if (!wx->ptp_clock)
+		return;
+
+	int_status = rd32ptp(wx, WX_TSC_1588_INT_ST);
+	if (int_status & WX_TSC_1588_INT_ST_TT1) {
+		/* disable the pin first */
+		wr32ptp(wx, WX_TSC_1588_AUX_CTL, 0);
+		WX_WRITE_FLUSH(wx);
+
+		wx_ptp_trigger_calc(wx);
+
+		tsauxc = WX_TSC_1588_AUX_CTL_PLSG | WX_TSC_1588_AUX_CTL_EN_TT0 |
+			 WX_TSC_1588_AUX_CTL_EN_TT1 | WX_TSC_1588_AUX_CTL_EN_TS0;
+		wr32ptp(wx, WX_TSC_1588_TRGT_L(0), (u32)wx->pps_edge_start);
+		wr32ptp(wx, WX_TSC_1588_TRGT_H(0), (u32)(wx->pps_edge_start >> 32));
+		wr32ptp(wx, WX_TSC_1588_TRGT_L(1), (u32)wx->pps_edge_end);
+		wr32ptp(wx, WX_TSC_1588_TRGT_H(1), (u32)(wx->pps_edge_end >> 32));
+		wr32ptp(wx, WX_TSC_1588_AUX_CTL, tsauxc);
+		WX_WRITE_FLUSH(wx);
+	}
+}
+EXPORT_SYMBOL(wx_ptp_check_pps_event);
+
+static long wx_ptp_create_clock(struct wx *wx)
+{
+	struct net_device *netdev = wx->netdev;
+	long err;
+
+	/* do nothing if we already have a clock device */
+	if (!IS_ERR_OR_NULL(wx->ptp_clock))
+		return 0;
+
+	snprintf(wx->ptp_caps.name, sizeof(wx->ptp_caps.name),
+		 "%s", netdev->name);
+	wx->ptp_caps.owner = THIS_MODULE;
+	wx->ptp_caps.n_alarm = 0;
+	wx->ptp_caps.n_ext_ts = 0;
+	wx->ptp_caps.pps = 0;
+	wx->ptp_caps.adjfine = wx_ptp_adjfine;
+	wx->ptp_caps.adjtime = wx_ptp_adjtime;
+	wx->ptp_caps.gettimex64 = wx_ptp_gettimex64;
+	wx->ptp_caps.settime64 = wx_ptp_settime64;
+	wx->ptp_caps.do_aux_work = wx_ptp_do_aux_work;
+	switch (wx->mac.type) {
+	case wx_mac_aml:
+	case wx_mac_aml40:
+		wx->ptp_caps.max_adj = 250000000;
+		wx->ptp_caps.n_per_out = 1;
+		wx->ptp_setup_sdp = wx_ptp_setup_sdp;
+		wx->ptp_caps.enable = wx_ptp_feature_enable;
+		break;
+	case wx_mac_sp:
+		wx->ptp_caps.max_adj = 250000000;
+		wx->ptp_caps.n_per_out = 0;
+		wx->ptp_setup_sdp = NULL;
+		break;
+	case wx_mac_em:
+		wx->ptp_caps.max_adj = 500000000;
+		wx->ptp_caps.n_per_out = 1;
+		wx->ptp_setup_sdp = wx_ptp_setup_sdp;
+		wx->ptp_caps.enable = wx_ptp_feature_enable;
+		break;
+	default:
+		return -EOPNOTSUPP;
+	}
+
+	wx->ptp_clock = ptp_clock_register(&wx->ptp_caps, &wx->pdev->dev);
+	if (IS_ERR(wx->ptp_clock)) {
+		err = PTR_ERR(wx->ptp_clock);
+		wx->ptp_clock = NULL;
+		wx_err(wx, "ptp clock register failed\n");
+		return err;
+	} else if (wx->ptp_clock) {
+		dev_info(&wx->pdev->dev, "registered PHC device on %s\n",
+			 netdev->name);
+	}
+
+	/* Set the default timestamp mode to disabled here. We do this in
+	 * create_clock instead of initialization, because we don't want to
+	 * override the previous settings during a suspend/resume cycle.
+	 */
+	wx->tstamp_config.rx_filter = HWTSTAMP_FILTER_NONE;
+	wx->tstamp_config.tx_type = HWTSTAMP_TX_OFF;
+
+	return 0;
+}
+
+static int wx_ptp_set_timestamp_mode(struct wx *wx,
+				     struct kernel_hwtstamp_config *config)
+{
+	u32 tsync_tx_ctl = WX_TSC_1588_CTL_ENABLED;
+	u32 tsync_rx_ctl = WX_PSR_1588_CTL_ENABLED;
+	DECLARE_BITMAP(flags, WX_PF_FLAGS_NBITS);
+	u32 tsync_rx_mtrl = PTP_EV_PORT << 16;
+	bool is_l2 = false;
+	u32 regval;
+
+	memcpy(flags, wx->flags, sizeof(wx->flags));
+
+	switch (config->tx_type) {
+	case HWTSTAMP_TX_OFF:
+		tsync_tx_ctl = 0;
+		break;
+	case HWTSTAMP_TX_ON:
+		break;
+	default:
+		return -ERANGE;
+	}
+
+	switch (config->rx_filter) {
+	case HWTSTAMP_FILTER_NONE:
+		tsync_rx_ctl = 0;
+		tsync_rx_mtrl = 0;
+		clear_bit(WX_FLAG_RX_HWTSTAMP_ENABLED, flags);
+		clear_bit(WX_FLAG_RX_HWTSTAMP_IN_REGISTER, flags);
+		break;
+	case HWTSTAMP_FILTER_PTP_V1_L4_SYNC:
+		tsync_rx_ctl |= WX_PSR_1588_CTL_TYPE_L4_V1;
+		tsync_rx_mtrl |= WX_PSR_1588_MSG_V1_SYNC;
+		set_bit(WX_FLAG_RX_HWTSTAMP_ENABLED, flags);
+		set_bit(WX_FLAG_RX_HWTSTAMP_IN_REGISTER, flags);
+		break;
+	case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ:
+		tsync_rx_ctl |= WX_PSR_1588_CTL_TYPE_L4_V1;
+		tsync_rx_mtrl |= WX_PSR_1588_MSG_V1_DELAY_REQ;
+		set_bit(WX_FLAG_RX_HWTSTAMP_ENABLED, flags);
+		set_bit(WX_FLAG_RX_HWTSTAMP_IN_REGISTER, flags);
+		break;
+	case HWTSTAMP_FILTER_PTP_V2_EVENT:
+	case HWTSTAMP_FILTER_PTP_V2_L2_EVENT:
+	case HWTSTAMP_FILTER_PTP_V2_L4_EVENT:
+	case HWTSTAMP_FILTER_PTP_V2_SYNC:
+	case HWTSTAMP_FILTER_PTP_V2_L2_SYNC:
+	case HWTSTAMP_FILTER_PTP_V2_L4_SYNC:
+	case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ:
+	case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ:
+	case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ:
+		tsync_rx_ctl |= WX_PSR_1588_CTL_TYPE_EVENT_V2;
+		is_l2 = true;
+		config->rx_filter = HWTSTAMP_FILTER_PTP_V2_EVENT;
+		set_bit(WX_FLAG_RX_HWTSTAMP_ENABLED, flags);
+		set_bit(WX_FLAG_RX_HWTSTAMP_IN_REGISTER, flags);
+		break;
+	default:
+		/* register PSR_1588_MSG must be set in order to do V1 packets,
+		 * therefore it is not possible to time stamp both V1 Sync and
+		 * Delay_Req messages unless hardware supports timestamping all
+		 * packets => return error
+		 */
+		config->rx_filter = HWTSTAMP_FILTER_NONE;
+		return -ERANGE;
+	}
+
+	/* define ethertype filter for timestamping L2 packets */
+	if (is_l2)
+		wr32(wx, WX_PSR_ETYPE_SWC(WX_PSR_ETYPE_SWC_FILTER_1588),
+		     (WX_PSR_ETYPE_SWC_FILTER_EN | /* enable filter */
+		      WX_PSR_ETYPE_SWC_1588 | /* enable timestamping */
+		      ETH_P_1588)); /* 1588 eth protocol type */
+	else
+		wr32(wx, WX_PSR_ETYPE_SWC(WX_PSR_ETYPE_SWC_FILTER_1588), 0);
+
+	/* enable/disable TX */
+	regval = rd32ptp(wx, WX_TSC_1588_CTL);
+	regval &= ~WX_TSC_1588_CTL_ENABLED;
+	regval |= tsync_tx_ctl;
+	wr32ptp(wx, WX_TSC_1588_CTL, regval);
+
+	/* enable/disable RX */
+	regval = rd32(wx, WX_PSR_1588_CTL);
+	regval &= ~(WX_PSR_1588_CTL_ENABLED | WX_PSR_1588_CTL_TYPE_MASK);
+	regval |= tsync_rx_ctl;
+	wr32(wx, WX_PSR_1588_CTL, regval);
+
+	/* define which PTP packets are time stamped */
+	wr32(wx, WX_PSR_1588_MSG, tsync_rx_mtrl);
+
+	WX_WRITE_FLUSH(wx);
+
+	/* configure adapter flags only when HW is actually configured */
+	memcpy(wx->flags, flags, sizeof(wx->flags));
+
+	/* clear TX/RX timestamp state, just to be sure */
+	wx_ptp_clear_tx_timestamp(wx);
+	rd32(wx, WX_PSR_1588_STMPH);
+
+	return 0;
+}
+
+static u64 wx_ptp_read(struct cyclecounter *hw_cc)
+{
+	struct wx *wx = container_of(hw_cc, struct wx, hw_cc);
+
+	return wx_ptp_readtime(wx, NULL);
+}
+
+static void wx_ptp_link_speed_adjust(struct wx *wx, u32 *shift, u32 *incval)
+{
+	switch (wx->mac.type) {
+	case wx_mac_aml:
+	case wx_mac_aml40:
+		*shift = WX_INCVAL_SHIFT_AML;
+		*incval = WX_INCVAL_AML;
+		return;
+	case wx_mac_em:
+		*shift = WX_INCVAL_SHIFT_EM;
+		*incval = WX_INCVAL_EM;
+		return;
+	default:
+		break;
+	}
+
+	switch (wx->speed) {
+	case SPEED_10:
+		*shift = WX_INCVAL_SHIFT_10;
+		*incval = WX_INCVAL_10;
+		break;
+	case SPEED_100:
+		*shift = WX_INCVAL_SHIFT_100;
+		*incval = WX_INCVAL_100;
+		break;
+	case SPEED_1000:
+		*shift = WX_INCVAL_SHIFT_1GB;
+		*incval = WX_INCVAL_1GB;
+		break;
+	case SPEED_10000:
+	default:
+		*shift = WX_INCVAL_SHIFT_10GB;
+		*incval = WX_INCVAL_10GB;
+		break;
+	}
+}
+
+/**
+ * wx_ptp_reset_cyclecounter - create the cycle counter from hw
+ * @wx: pointer to the wx structure
+ *
+ * This function should be called to set the proper values for the TSC_1588_INC
+ * register and tell the cyclecounter structure what the tick rate of SYSTIME
+ * is. It does not directly modify SYSTIME registers or the timecounter
+ * structure. It should be called whenever a new TSC_1588_INC value is
+ * necessary, such as during initialization or when the link speed changes.
+ */
+void wx_ptp_reset_cyclecounter(struct wx *wx)
+{
+	u32 incval = 0, mask = 0;
+	struct cyclecounter cc;
+	unsigned long flags;
+
+	/* For some of the boards below this mask is technically incorrect.
+	 * The timestamp mask overflows at approximately 61bits. However the
+	 * particular hardware does not overflow on an even bitmask value.
+	 * Instead, it overflows due to conversion of upper 32bits billions of
+	 * cycles. Timecounters are not really intended for this purpose so
+	 * they do not properly function if the overflow point isn't 2^N-1.
+	 * However, the actual SYSTIME values in question take ~138 years to
+	 * overflow. In practice this means they won't actually overflow. A
+	 * proper fix to this problem would require modification of the
+	 * timecounter delta calculations.
+	 */
+	cc.mask = CLOCKSOURCE_MASK(64);
+	cc.mult = 1;
+	cc.shift = 0;
+
+	cc.read = wx_ptp_read;
+	wx_ptp_link_speed_adjust(wx, &cc.shift, &incval);
+
+	/* update the base incval used to calculate frequency adjustment */
+	WRITE_ONCE(wx->base_incval, incval);
+
+	mask = (wx->mac.type == wx_mac_em) ? 0x7FFFFFF : 0xFFFFFF;
+	incval &= mask;
+	if (wx->mac.type != wx_mac_em)
+		incval |= 2 << 24;
+	wr32ptp(wx, WX_TSC_1588_INC, incval);
+
+	smp_mb(); /* Force the above update. */
+
+	/* need lock to prevent incorrect read while modifying cyclecounter */
+	write_seqlock_irqsave(&wx->hw_tc_lock, flags);
+	memcpy(&wx->hw_cc, &cc, sizeof(wx->hw_cc));
+	write_sequnlock_irqrestore(&wx->hw_tc_lock, flags);
+}
+EXPORT_SYMBOL(wx_ptp_reset_cyclecounter);
+
+void wx_ptp_reset(struct wx *wx)
+{
+	unsigned long flags;
+
+	/* reset the hardware timestamping mode */
+	wx_ptp_set_timestamp_mode(wx, &wx->tstamp_config);
+	wx_ptp_reset_cyclecounter(wx);
+
+	wr32ptp(wx, WX_TSC_1588_SYSTIML, 0);
+	wr32ptp(wx, WX_TSC_1588_SYSTIMH, 0);
+	WX_WRITE_FLUSH(wx);
+
+	write_seqlock_irqsave(&wx->hw_tc_lock, flags);
+	timecounter_init(&wx->hw_tc, &wx->hw_cc,
+			 ktime_to_ns(ktime_get_real()));
+	write_sequnlock_irqrestore(&wx->hw_tc_lock, flags);
+
+	wx->last_overflow_check = jiffies;
+	ptp_schedule_worker(wx->ptp_clock, HZ);
+
+	/* Now that the shift has been calculated and the systime
+	 * registers reset, (re-)enable the Clock out feature
+	 */
+	if (wx->ptp_setup_sdp)
+		wx->ptp_setup_sdp(wx);
+}
+EXPORT_SYMBOL(wx_ptp_reset);
+
+void wx_ptp_init(struct wx *wx)
+{
+	/* Initialize the seqlock_t first, since the user might call the clock
+	 * functions any time after we've initialized the ptp clock device.
+	 */
+	seqlock_init(&wx->hw_tc_lock);
+
+	/* obtain a ptp clock device, or re-use an existing device */
+	if (wx_ptp_create_clock(wx))
+		return;
+
+	wx->tx_hwtstamp_pkts = 0;
+	wx->tx_hwtstamp_timeouts = 0;
+	wx->tx_hwtstamp_skipped = 0;
+	wx->tx_hwtstamp_errors = 0;
+	wx->rx_hwtstamp_cleared = 0;
+	/* reset the ptp related hardware bits */
+	wx_ptp_reset(wx);
+
+	/* enter the WX_STATE_PTP_RUNNING state */
+	set_bit(WX_STATE_PTP_RUNNING, wx->state);
+}
+EXPORT_SYMBOL(wx_ptp_init);
+
+/**
+ * wx_ptp_suspend - stop ptp work items
+ * @wx: pointer to wx struct
+ *
+ * This function suspends ptp activity, and prevents more work from being
+ * generated, but does not destroy the clock device.
+ */
+void wx_ptp_suspend(struct wx *wx)
+{
+	/* leave the WX_STATE_PTP_RUNNING STATE */
+	if (!test_and_clear_bit(WX_STATE_PTP_RUNNING, wx->state))
+		return;
+
+	clear_bit(WX_FLAG_PTP_PPS_ENABLED, wx->flags);
+	if (wx->ptp_setup_sdp)
+		wx->ptp_setup_sdp(wx);
+
+	wx_ptp_clear_tx_timestamp(wx);
+}
+EXPORT_SYMBOL(wx_ptp_suspend);
+
+/**
+ * wx_ptp_stop - destroy the ptp_clock device
+ * @wx: pointer to wx struct
+ *
+ * Completely destroy the ptp_clock device, and disable all PTP related
+ * features. Intended to be run when the device is being closed.
+ */
+void wx_ptp_stop(struct wx *wx)
+{
+	/* first, suspend ptp activity */
+	wx_ptp_suspend(wx);
+
+	/* now destroy the ptp clock device */
+	if (wx->ptp_clock) {
+		ptp_clock_unregister(wx->ptp_clock);
+		wx->ptp_clock = NULL;
+		dev_info(&wx->pdev->dev, "removed PHC on %s\n", wx->netdev->name);
+	}
+}
+EXPORT_SYMBOL(wx_ptp_stop);
+
+/**
+ * wx_ptp_rx_hwtstamp - utility function which checks for RX time stamp
+ * @wx: pointer to wx struct
+ * @skb: particular skb to send timestamp with
+ *
+ * if the timestamp is valid, we convert it into the timecounter ns
+ * value, then store that result into the shhwtstamps structure which
+ * is passed up the network stack
+ */
+void wx_ptp_rx_hwtstamp(struct wx *wx, struct sk_buff *skb)
+{
+	u64 regval = 0;
+	u32 tsyncrxctl;
+
+	/* Read the tsyncrxctl register afterwards in order to prevent taking an
+	 * I/O hit on every packet.
+	 */
+	tsyncrxctl = rd32(wx, WX_PSR_1588_CTL);
+	if (!(tsyncrxctl & WX_PSR_1588_CTL_VALID))
+		return;
+
+	regval |= (u64)rd32(wx, WX_PSR_1588_STMPL);
+	regval |= (u64)rd32(wx, WX_PSR_1588_STMPH) << 32;
+
+	wx_ptp_convert_to_hwtstamp(wx, skb_hwtstamps(skb), regval);
+}
+
+int wx_hwtstamp_get(struct net_device *dev,
+		    struct kernel_hwtstamp_config *cfg)
+{
+	struct wx *wx = netdev_priv(dev);
+
+	if (!netif_running(dev))
+		return -EINVAL;
+
+	*cfg = wx->tstamp_config;
+
+	return 0;
+}
+EXPORT_SYMBOL(wx_hwtstamp_get);
+
+int wx_hwtstamp_set(struct net_device *dev,
+		    struct kernel_hwtstamp_config *cfg,
+		    struct netlink_ext_ack *extack)
+{
+	struct wx *wx = netdev_priv(dev);
+	int err;
+
+	if (!netif_running(dev))
+		return -EINVAL;
+
+	err = wx_ptp_set_timestamp_mode(wx, cfg);
+	if (err)
+		return err;
+
+	/* save these settings for future reference */
+	memcpy(&wx->tstamp_config, cfg, sizeof(wx->tstamp_config));
+
+	return 0;
+}
+EXPORT_SYMBOL(wx_hwtstamp_set);

linux-7.2.3/drivers/net/ethernet/wangxun/libwx/wx_ptp.h

@@ -0,0 +1,20 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2019 - 2025 Beijing WangXun Technology Co., Ltd. */
+
+#ifndef _WX_PTP_H_
+#define _WX_PTP_H_
+
+void wx_ptp_check_pps_event(struct wx *wx);
+void wx_ptp_reset_cyclecounter(struct wx *wx);
+void wx_ptp_reset(struct wx *wx);
+void wx_ptp_init(struct wx *wx);
+void wx_ptp_suspend(struct wx *wx);
+void wx_ptp_stop(struct wx *wx);
+void wx_ptp_rx_hwtstamp(struct wx *wx, struct sk_buff *skb);
+int wx_hwtstamp_get(struct net_device *dev,
+		    struct kernel_hwtstamp_config *cfg);
+int wx_hwtstamp_set(struct net_device *dev,
+		    struct kernel_hwtstamp_config *cfg,
+		    struct netlink_ext_ack *extack);
+
+#endif /* _WX_PTP_H_ */

linux-7.2.3/drivers/net/ethernet/wangxun/libwx/wx_sriov.c

@@ -0,0 +1,927 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2015 - 2025 Beijing WangXun Technology Co., Ltd. */
+
+#include <linux/etherdevice.h>
+#include <linux/pci.h>
+
+#include "wx_type.h"
+#include "wx_hw.h"
+#include "wx_mbx.h"
+#include "wx_sriov.h"
+
+static void wx_vf_configuration(struct pci_dev *pdev, int event_mask)
+{
+	bool enable = !!WX_VF_ENABLE_CHECK(event_mask);
+	struct wx *wx = pci_get_drvdata(pdev);
+	u32 vfn = WX_VF_NUM_GET(event_mask);
+
+	if (enable)
+		eth_zero_addr(wx->vfinfo[vfn].vf_mac_addr);
+}
+
+static int wx_alloc_vf_macvlans(struct wx *wx, u8 num_vfs)
+{
+	struct vf_macvlans *mv_list;
+	int num_vf_macvlans, i;
+
+	/* Initialize list of VF macvlans */
+	INIT_LIST_HEAD(&wx->vf_mvs.mvlist);
+
+	num_vf_macvlans = wx->mac.num_rar_entries -
+			  (WX_MAX_PF_MACVLANS + 1 + num_vfs);
+	if (!num_vf_macvlans)
+		return -EINVAL;
+
+	mv_list = kzalloc_objs(struct vf_macvlans, num_vf_macvlans);
+	if (!mv_list)
+		return -ENOMEM;
+
+	for (i = 0; i < num_vf_macvlans; i++) {
+		mv_list[i].vf = -1;
+		mv_list[i].free = true;
+		list_add(&mv_list[i].mvlist, &wx->vf_mvs.mvlist);
+	}
+	wx->mv_list = mv_list;
+
+	return 0;
+}
+
+static void wx_sriov_clear_data(struct wx *wx)
+{
+	/* set num VFs to 0 to prevent access to vfinfo */
+	wx->num_vfs = 0;
+
+	/* free VF control structures */
+	kfree(wx->vfinfo);
+	wx->vfinfo = NULL;
+
+	/* free macvlan list */
+	kfree(wx->mv_list);
+	wx->mv_list = NULL;
+
+	/* set default pool back to 0 */
+	wr32m(wx, WX_PSR_VM_CTL, WX_PSR_VM_CTL_POOL_MASK, 0);
+	wx->ring_feature[RING_F_VMDQ].offset = 0;
+
+	clear_bit(WX_FLAG_IRQ_VECTOR_SHARED, wx->flags);
+	clear_bit(WX_FLAG_SRIOV_ENABLED, wx->flags);
+	/* Disable VMDq flag so device will be set in NM mode */
+	if (wx->ring_feature[RING_F_VMDQ].limit == 1)
+		clear_bit(WX_FLAG_VMDQ_ENABLED, wx->flags);
+}
+
+static int __wx_enable_sriov(struct wx *wx, u8 num_vfs)
+{
+	int i, ret = 0;
+	u32 value = 0;
+
+	set_bit(WX_FLAG_SRIOV_ENABLED, wx->flags);
+	dev_info(&wx->pdev->dev, "SR-IOV enabled with %d VFs\n", num_vfs);
+
+	if (num_vfs == 7 && wx->mac.type == wx_mac_em)
+		set_bit(WX_FLAG_IRQ_VECTOR_SHARED, wx->flags);
+
+	/* Enable VMDq flag so device will be set in VM mode */
+	set_bit(WX_FLAG_VMDQ_ENABLED, wx->flags);
+	if (!wx->ring_feature[RING_F_VMDQ].limit)
+		wx->ring_feature[RING_F_VMDQ].limit = 1;
+	wx->ring_feature[RING_F_VMDQ].offset = num_vfs;
+
+	wx->vfinfo = kzalloc_objs(struct vf_data_storage, num_vfs);
+	if (!wx->vfinfo)
+		return -ENOMEM;
+
+	ret = wx_alloc_vf_macvlans(wx, num_vfs);
+	if (ret)
+		return ret;
+
+	/* Initialize default switching mode VEB */
+	wr32m(wx, WX_PSR_CTL, WX_PSR_CTL_SW_EN, WX_PSR_CTL_SW_EN);
+
+	for (i = 0; i < num_vfs; i++) {
+		/* enable spoof checking for all VFs */
+		wx->vfinfo[i].spoofchk_enabled = true;
+		wx->vfinfo[i].link_enable = true;
+		/* untrust all VFs */
+		wx->vfinfo[i].trusted = false;
+		/* set the default xcast mode */
+		wx->vfinfo[i].xcast_mode = WXVF_XCAST_MODE_NONE;
+	}
+
+	if (!test_bit(WX_FLAG_MULTI_64_FUNC, wx->flags)) {
+		value = WX_CFG_PORT_CTL_NUM_VT_8;
+	} else {
+		if (num_vfs < 32)
+			value = WX_CFG_PORT_CTL_NUM_VT_32;
+		else
+			value = WX_CFG_PORT_CTL_NUM_VT_64;
+	}
+	wr32m(wx, WX_CFG_PORT_CTL,
+	      WX_CFG_PORT_CTL_NUM_VT_MASK,
+	      value);
+
+	/* Disable RSC when in SR-IOV mode */
+	clear_bit(WX_FLAG_RSC_CAPABLE, wx->flags);
+	clear_bit(WX_FLAG_RSC_ENABLED, wx->flags);
+
+	return ret;
+}
+
+static void wx_sriov_reinit(struct wx *wx)
+{
+	rtnl_lock();
+	wx->setup_tc(wx->netdev, netdev_get_num_tc(wx->netdev));
+	rtnl_unlock();
+}
+
+void wx_disable_sriov(struct wx *wx)
+{
+	if (!pci_vfs_assigned(wx->pdev))
+		pci_disable_sriov(wx->pdev);
+	else
+		wx_err(wx, "Unloading driver while VFs are assigned.\n");
+
+	/* clear flags and free allloced data */
+	wx_sriov_clear_data(wx);
+}
+EXPORT_SYMBOL(wx_disable_sriov);
+
+static int wx_pci_sriov_enable(struct pci_dev *dev,
+			       int num_vfs)
+{
+	struct wx *wx = pci_get_drvdata(dev);
+	int err = 0, i;
+
+	if (netif_is_rxfh_configured(wx->netdev)) {
+		wx_err(wx, "Cannot enable SR-IOV while RXFH is configured\n");
+		wx_err(wx, "Run 'ethtool -X <if> default' to reset RSS table\n");
+		return -EBUSY;
+	}
+
+	err = __wx_enable_sriov(wx, num_vfs);
+	if (err)
+		return err;
+
+	wx->num_vfs = num_vfs;
+	for (i = 0; i < wx->num_vfs; i++)
+		wx_vf_configuration(dev, (i | WX_VF_ENABLE));
+
+	/* reset before enabling SRIOV to avoid mailbox issues */
+	wx_sriov_reinit(wx);
+
+	err = pci_enable_sriov(dev, num_vfs);
+	if (err) {
+		wx_err(wx, "Failed to enable PCI sriov: %d\n", err);
+		goto err_out;
+	}
+
+	return num_vfs;
+err_out:
+	wx_sriov_clear_data(wx);
+	return err;
+}
+
+static int wx_pci_sriov_disable(struct pci_dev *dev)
+{
+	struct wx *wx = pci_get_drvdata(dev);
+
+	if (netif_is_rxfh_configured(wx->netdev)) {
+		wx_err(wx, "Cannot disable SR-IOV while RXFH is configured\n");
+		wx_err(wx, "Run 'ethtool -X <if> default' to reset RSS table\n");
+		return -EBUSY;
+	}
+
+	wx_disable_sriov(wx);
+	wx_sriov_reinit(wx);
+
+	return 0;
+}
+
+int wx_pci_sriov_configure(struct pci_dev *pdev, int num_vfs)
+{
+	struct wx *wx = pci_get_drvdata(pdev);
+	int err;
+
+	if (!num_vfs) {
+		if (!pci_vfs_assigned(pdev))
+			return wx_pci_sriov_disable(pdev);
+
+		wx_err(wx, "can't free VFs because some are assigned to VMs.\n");
+		return -EBUSY;
+	}
+
+	err = wx_pci_sriov_enable(pdev, num_vfs);
+	if (err)
+		return err;
+
+	return num_vfs;
+}
+EXPORT_SYMBOL(wx_pci_sriov_configure);
+
+static int wx_set_vf_mac(struct wx *wx, u16 vf, const u8 *mac_addr)
+{
+	u8 hw_addr[ETH_ALEN];
+	int ret = 0;
+
+	ether_addr_copy(hw_addr, mac_addr);
+	wx_del_mac_filter(wx, wx->vfinfo[vf].vf_mac_addr, vf);
+	ret = wx_add_mac_filter(wx, hw_addr, vf);
+	if (ret >= 0)
+		ether_addr_copy(wx->vfinfo[vf].vf_mac_addr, mac_addr);
+	else
+		eth_zero_addr(wx->vfinfo[vf].vf_mac_addr);
+
+	return ret;
+}
+
+static void wx_set_vmolr(struct wx *wx, u16 vf, bool aupe)
+{
+	u32 vmolr = rd32(wx, WX_PSR_VM_L2CTL(vf));
+
+	vmolr |=  WX_PSR_VM_L2CTL_BAM;
+	if (aupe)
+		vmolr |= WX_PSR_VM_L2CTL_AUPE;
+	else
+		vmolr &= ~WX_PSR_VM_L2CTL_AUPE;
+	wr32(wx, WX_PSR_VM_L2CTL(vf), vmolr);
+}
+
+static void wx_set_vmvir(struct wx *wx, u16 vid, u16 qos, u16 vf)
+{
+	u32 vmvir = vid | (qos << VLAN_PRIO_SHIFT) |
+		    WX_TDM_VLAN_INS_VLANA_DEFAULT;
+
+	wr32(wx, WX_TDM_VLAN_INS(vf), vmvir);
+}
+
+static int wx_set_vf_vlan(struct wx *wx, int add, int vid, u16 vf)
+{
+	if (!vid && !add)
+		return 0;
+
+	return wx_set_vfta(wx, vid, vf, (bool)add);
+}
+
+static void wx_set_vlan_anti_spoofing(struct wx *wx, bool enable, int vf)
+{
+	u32 index = WX_VF_REG_OFFSET(vf), vf_bit = WX_VF_IND_SHIFT(vf);
+	u32 pfvfspoof;
+
+	pfvfspoof = rd32(wx, WX_TDM_VLAN_AS(index));
+	if (enable)
+		pfvfspoof |= BIT(vf_bit);
+	else
+		pfvfspoof &= ~BIT(vf_bit);
+	wr32(wx, WX_TDM_VLAN_AS(index), pfvfspoof);
+}
+
+static void wx_write_qde(struct wx *wx, u32 vf, u32 qde)
+{
+	struct wx_ring_feature *vmdq = &wx->ring_feature[RING_F_VMDQ];
+	u32 q_per_pool = __ALIGN_MASK(1, ~vmdq->mask);
+	u32 reg = 0, n = vf * q_per_pool / 32;
+	u32 i = vf * q_per_pool;
+
+	reg = rd32(wx, WX_RDM_PF_QDE(n));
+	for (i = (vf * q_per_pool - n * 32);
+	     i < ((vf + 1) * q_per_pool - n * 32);
+	     i++) {
+		if (qde == 1)
+			reg |= qde << i;
+		else
+			reg &= qde << i;
+	}
+
+	wr32(wx, WX_RDM_PF_QDE(n), reg);
+}
+
+static void wx_clear_vmvir(struct wx *wx, u32 vf)
+{
+	wr32(wx, WX_TDM_VLAN_INS(vf), 0);
+}
+
+static void wx_ping_vf(struct wx *wx, int vf)
+{
+	u32 ping = WX_PF_CONTROL_MSG;
+
+	if (wx->vfinfo[vf].clear_to_send)
+		ping |= WX_VT_MSGTYPE_CTS;
+	wx_write_mbx_pf(wx, &ping, 1, vf);
+}
+
+static void wx_set_vf_rx_tx(struct wx *wx, int vf)
+{
+	u32 index = WX_VF_REG_OFFSET(vf), vf_bit = WX_VF_IND_SHIFT(vf);
+	u32 reg_cur_tx, reg_cur_rx, reg_req_tx, reg_req_rx;
+
+	reg_cur_tx = rd32(wx, WX_TDM_VF_TE(index));
+	reg_cur_rx = rd32(wx, WX_RDM_VF_RE(index));
+
+	if (wx->vfinfo[vf].link_enable) {
+		reg_req_tx = reg_cur_tx | BIT(vf_bit);
+		reg_req_rx = reg_cur_rx | BIT(vf_bit);
+		/* Enable particular VF */
+		if (reg_cur_tx != reg_req_tx)
+			wr32(wx, WX_TDM_VF_TE(index), reg_req_tx);
+		if (reg_cur_rx != reg_req_rx)
+			wr32(wx, WX_RDM_VF_RE(index), reg_req_rx);
+	} else {
+		reg_req_tx = BIT(vf_bit);
+		reg_req_rx = BIT(vf_bit);
+		/* Disable particular VF */
+		if (reg_cur_tx & reg_req_tx)
+			wr32(wx, WX_TDM_VFTE_CLR(index), reg_req_tx);
+		if (reg_cur_rx & reg_req_rx)
+			wr32(wx, WX_RDM_VFRE_CLR(index), reg_req_rx);
+	}
+}
+
+static int wx_get_vf_queues(struct wx *wx, u32 *msgbuf, u32 vf)
+{
+	struct wx_ring_feature *vmdq = &wx->ring_feature[RING_F_VMDQ];
+	unsigned int default_tc = 0;
+
+	msgbuf[WX_VF_TX_QUEUES] = __ALIGN_MASK(1, ~vmdq->mask);
+	msgbuf[WX_VF_RX_QUEUES] = __ALIGN_MASK(1, ~vmdq->mask);
+
+	if (wx->vfinfo[vf].pf_vlan || wx->vfinfo[vf].pf_qos)
+		msgbuf[WX_VF_TRANS_VLAN] = 1;
+	else
+		msgbuf[WX_VF_TRANS_VLAN] = 0;
+
+	/* notify VF of default queue */
+	msgbuf[WX_VF_DEF_QUEUE] = default_tc;
+
+	return 0;
+}
+
+static void wx_vf_reset_event(struct wx *wx, u16 vf)
+{
+	struct vf_data_storage *vfinfo = &wx->vfinfo[vf];
+	u8 num_tcs = netdev_get_num_tc(wx->netdev);
+
+	/* add PF assigned VLAN */
+	wx_set_vf_vlan(wx, true, vfinfo->pf_vlan, vf);
+
+	/* reset offloads to defaults */
+	wx_set_vmolr(wx, vf, !vfinfo->pf_vlan);
+
+	/* set outgoing tags for VFs */
+	if (!vfinfo->pf_vlan && !vfinfo->pf_qos && !num_tcs) {
+		wx_clear_vmvir(wx, vf);
+	} else {
+		if (vfinfo->pf_qos || !num_tcs)
+			wx_set_vmvir(wx, vfinfo->pf_vlan,
+				     vfinfo->pf_qos, vf);
+		else
+			wx_set_vmvir(wx, vfinfo->pf_vlan,
+				     wx->default_up, vf);
+	}
+
+	/* reset multicast table array for vf */
+	wx->vfinfo[vf].num_vf_mc_hashes = 0;
+
+	/* Flush and reset the mta with the new values */
+	wx_set_rx_mode(wx->netdev);
+
+	wx_del_mac_filter(wx, wx->vfinfo[vf].vf_mac_addr, vf);
+	/* reset VF api back to unknown */
+	wx->vfinfo[vf].vf_api = wx_mbox_api_null;
+}
+
+static void wx_vf_reset_msg(struct wx *wx, u16 vf)
+{
+	const u8 *vf_mac = wx->vfinfo[vf].vf_mac_addr;
+	struct net_device *dev = wx->netdev;
+	u32 msgbuf[5] = {0, 0, 0, 0, 0};
+	u8 *addr = (u8 *)(&msgbuf[1]);
+	u32 reg = 0, index, vf_bit;
+	int pf_max_frame;
+
+	/* reset the filters for the device */
+	wx_vf_reset_event(wx, vf);
+
+	/* set vf mac address */
+	if (!is_zero_ether_addr(vf_mac))
+		wx_set_vf_mac(wx, vf, vf_mac);
+
+	index = WX_VF_REG_OFFSET(vf);
+	vf_bit = WX_VF_IND_SHIFT(vf);
+
+	/* force drop enable for all VF Rx queues */
+	wx_write_qde(wx, vf, 1);
+
+	/* set transmit and receive for vf */
+	wx_set_vf_rx_tx(wx, vf);
+
+	pf_max_frame = dev->mtu + ETH_HLEN;
+
+	if (pf_max_frame > ETH_FRAME_LEN)
+		reg = BIT(vf_bit);
+	wr32(wx, WX_RDM_VFRE_CLR(index), reg);
+
+	/* enable VF mailbox for further messages */
+	wx->vfinfo[vf].clear_to_send = true;
+
+	/* reply to reset with ack and vf mac address */
+	msgbuf[0] = WX_VF_RESET;
+	if (!is_zero_ether_addr(vf_mac)) {
+		msgbuf[0] |= WX_VT_MSGTYPE_ACK;
+		memcpy(addr, vf_mac, ETH_ALEN);
+	} else {
+		msgbuf[0] |= WX_VT_MSGTYPE_NACK;
+		wx_err(wx, "VF %d has no MAC address assigned", vf);
+	}
+
+	msgbuf[3] = wx->mac.mc_filter_type;
+	wx_write_mbx_pf(wx, msgbuf, WX_VF_PERMADDR_MSG_LEN, vf);
+}
+
+static int wx_set_vf_mac_addr(struct wx *wx, u32 *msgbuf, u16 vf)
+{
+	const u8 *new_mac = ((u8 *)(&msgbuf[1]));
+	int ret;
+
+	if (!is_valid_ether_addr(new_mac)) {
+		wx_err(wx, "VF %d attempted to set invalid mac\n", vf);
+		return -EINVAL;
+	}
+
+	if (wx->vfinfo[vf].pf_set_mac &&
+	    memcmp(wx->vfinfo[vf].vf_mac_addr, new_mac, ETH_ALEN)) {
+		wx_err(wx,
+		       "VF %d attempt to set a MAC but it already had a MAC.",
+		       vf);
+		return -EBUSY;
+	}
+
+	ret = wx_set_vf_mac(wx, vf, new_mac);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+static void wx_set_vf_multicasts(struct wx *wx, u32 *msgbuf, u32 vf)
+{
+	struct vf_data_storage *vfinfo = &wx->vfinfo[vf];
+	u16 entries = (msgbuf[0] & WX_VT_MSGINFO_MASK)
+		      >> WX_VT_MSGINFO_SHIFT;
+	u32 vmolr = rd32(wx, WX_PSR_VM_L2CTL(vf));
+	u32 vector_bit, vector_reg, mta_reg, i;
+	u16 *hash_list = (u16 *)&msgbuf[1];
+
+	/* only so many hash values supported */
+	entries = min_t(u16, entries, WX_MAX_VF_MC_ENTRIES);
+	vfinfo->num_vf_mc_hashes = entries;
+
+	for (i = 0; i < entries; i++)
+		vfinfo->vf_mc_hashes[i] = hash_list[i];
+
+	for (i = 0; i < vfinfo->num_vf_mc_hashes; i++) {
+		vector_reg = WX_PSR_MC_TBL_REG(vfinfo->vf_mc_hashes[i]);
+		vector_bit = WX_PSR_MC_TBL_BIT(vfinfo->vf_mc_hashes[i]);
+		mta_reg = wx->mac.mta_shadow[vector_reg];
+		mta_reg |= BIT(vector_bit);
+		wx->mac.mta_shadow[vector_reg] = mta_reg;
+		wr32(wx, WX_PSR_MC_TBL(vector_reg), mta_reg);
+	}
+	vmolr |= WX_PSR_VM_L2CTL_ROMPE;
+	wr32(wx, WX_PSR_VM_L2CTL(vf), vmolr);
+}
+
+static void wx_set_vf_lpe(struct wx *wx, u32 max_frame, u32 vf)
+{
+	u32 index, vf_bit, vfre;
+	u32 max_frs, reg_val;
+
+	/* determine VF receive enable location */
+	index = WX_VF_REG_OFFSET(vf);
+	vf_bit = WX_VF_IND_SHIFT(vf);
+
+	vfre = rd32(wx, WX_RDM_VF_RE(index));
+	vfre |= BIT(vf_bit);
+	wr32(wx, WX_RDM_VF_RE(index), vfre);
+
+	/* pull current max frame size from hardware */
+	max_frs = DIV_ROUND_UP(max_frame, 1024);
+	reg_val = rd32(wx, WX_MAC_WDG_TIMEOUT) & WX_MAC_WDG_TIMEOUT_WTO_MASK;
+	if (max_frs > (reg_val + WX_MAC_WDG_TIMEOUT_WTO_DELTA))
+		wr32(wx, WX_MAC_WDG_TIMEOUT,
+		     max_frs - WX_MAC_WDG_TIMEOUT_WTO_DELTA);
+}
+
+static int wx_find_vlvf_entry(struct wx *wx, u32 vlan)
+{
+	int regindex;
+	u32 vlvf;
+
+	/* short cut the special case */
+	if (vlan == 0)
+		return 0;
+
+	/* Search for the vlan id in the VLVF entries */
+	for (regindex = 1; regindex < WX_PSR_VLAN_SWC_ENTRIES; regindex++) {
+		wr32(wx, WX_PSR_VLAN_SWC_IDX, regindex);
+		vlvf = rd32(wx, WX_PSR_VLAN_SWC);
+		if ((vlvf & VLAN_VID_MASK) == vlan)
+			break;
+	}
+
+	/* Return a negative value if not found */
+	if (regindex >= WX_PSR_VLAN_SWC_ENTRIES)
+		regindex = -EINVAL;
+
+	return regindex;
+}
+
+static int wx_set_vf_macvlan(struct wx *wx,
+			     u16 vf, int index, unsigned char *mac_addr)
+{
+	struct vf_macvlans *entry;
+	struct list_head *pos;
+	int retval = 0;
+
+	if (index <= 1) {
+		list_for_each(pos, &wx->vf_mvs.mvlist) {
+			entry = list_entry(pos, struct vf_macvlans, mvlist);
+			if (entry->vf == vf) {
+				entry->vf = -1;
+				entry->free = true;
+				entry->is_macvlan = false;
+				wx_del_mac_filter(wx, entry->vf_macvlan, vf);
+			}
+		}
+	}
+
+	if (!index)
+		return 0;
+
+	entry = NULL;
+	list_for_each(pos, &wx->vf_mvs.mvlist) {
+		entry = list_entry(pos, struct vf_macvlans, mvlist);
+		if (entry->free)
+			break;
+	}
+
+	if (!entry || !entry->free)
+		return -ENOSPC;
+
+	retval = wx_add_mac_filter(wx, mac_addr, vf);
+	if (retval >= 0) {
+		entry->free = false;
+		entry->is_macvlan = true;
+		entry->vf = vf;
+		memcpy(entry->vf_macvlan, mac_addr, ETH_ALEN);
+	}
+
+	return retval;
+}
+
+static int wx_set_vf_vlan_msg(struct wx *wx, u32 *msgbuf, u16 vf)
+{
+	int add = (msgbuf[0] & WX_VT_MSGINFO_MASK) >> WX_VT_MSGINFO_SHIFT;
+	int vid = (msgbuf[1] & WX_PSR_VLAN_SWC_VLANID_MASK);
+	int ret;
+
+	if (add)
+		wx->vfinfo[vf].vlan_count++;
+	else if (wx->vfinfo[vf].vlan_count)
+		wx->vfinfo[vf].vlan_count--;
+
+	/* in case of promiscuous mode any VLAN filter set for a VF must
+	 * also have the PF pool added to it.
+	 */
+	if (add && wx->netdev->flags & IFF_PROMISC)
+		wx_set_vf_vlan(wx, add, vid, VMDQ_P(0));
+
+	ret = wx_set_vf_vlan(wx, add, vid, vf);
+	if (!ret && wx->vfinfo[vf].spoofchk_enabled)
+		wx_set_vlan_anti_spoofing(wx, true, vf);
+
+	/* Go through all the checks to see if the VLAN filter should
+	 * be wiped completely.
+	 */
+	if (!add && wx->netdev->flags & IFF_PROMISC) {
+		u32 bits = 0, vlvf;
+		int reg_ndx;
+
+		reg_ndx = wx_find_vlvf_entry(wx, vid);
+		if (reg_ndx < 0)
+			return -ENOSPC;
+		wr32(wx, WX_PSR_VLAN_SWC_IDX, reg_ndx);
+		vlvf = rd32(wx, WX_PSR_VLAN_SWC);
+		/* See if any other pools are set for this VLAN filter
+		 * entry other than the PF.
+		 */
+		if (VMDQ_P(0) < 32) {
+			bits = rd32(wx, WX_PSR_VLAN_SWC_VM_L);
+			bits &= ~BIT(VMDQ_P(0));
+			if (test_bit(WX_FLAG_MULTI_64_FUNC, wx->flags))
+				bits |= rd32(wx, WX_PSR_VLAN_SWC_VM_H);
+		} else {
+			if (test_bit(WX_FLAG_MULTI_64_FUNC, wx->flags))
+				bits = rd32(wx, WX_PSR_VLAN_SWC_VM_H);
+			bits &= ~BIT(VMDQ_P(0) % 32);
+			bits |= rd32(wx, WX_PSR_VLAN_SWC_VM_L);
+		}
+		/* If the filter was removed then ensure PF pool bit
+		 * is cleared if the PF only added itself to the pool
+		 * because the PF is in promiscuous mode.
+		 */
+		if ((vlvf & VLAN_VID_MASK) == vid && !bits)
+			wx_set_vf_vlan(wx, add, vid, VMDQ_P(0));
+	}
+
+	return 0;
+}
+
+static int wx_set_vf_macvlan_msg(struct wx *wx, u32 *msgbuf, u16 vf)
+{
+	int index = (msgbuf[0] & WX_VT_MSGINFO_MASK) >>
+		    WX_VT_MSGINFO_SHIFT;
+	u8 *new_mac = ((u8 *)(&msgbuf[1]));
+	int err;
+
+	if (wx->vfinfo[vf].pf_set_mac && index > 0) {
+		wx_err(wx, "VF %d request MACVLAN filter but is denied\n", vf);
+		return -EINVAL;
+	}
+
+	/* An non-zero index indicates the VF is setting a filter */
+	if (index) {
+		if (!is_valid_ether_addr(new_mac)) {
+			wx_err(wx, "VF %d attempted to set invalid mac\n", vf);
+			return -EINVAL;
+		}
+		/* If the VF is allowed to set MAC filters then turn off
+		 * anti-spoofing to avoid false positives.
+		 */
+		if (wx->vfinfo[vf].spoofchk_enabled)
+			wx_set_vf_spoofchk(wx->netdev, vf, false);
+	}
+
+	err = wx_set_vf_macvlan(wx, vf, index, new_mac);
+	if (err == -ENOSPC)
+		wx_err(wx,
+		       "VF %d request MACVLAN filter but there is no space\n",
+		       vf);
+	if (err < 0)
+		return err;
+
+	return 0;
+}
+
+static int wx_negotiate_vf_api(struct wx *wx, u32 *msgbuf, u32 vf)
+{
+	int api = msgbuf[1];
+
+	switch (api) {
+	case wx_mbox_api_13:
+		wx->vfinfo[vf].vf_api = api;
+		return 0;
+	default:
+		wx_err(wx, "VF %d requested invalid api version %u\n", vf, api);
+		return -EINVAL;
+	}
+}
+
+static int wx_get_vf_link_state(struct wx *wx, u32 *msgbuf, u32 vf)
+{
+	msgbuf[1] = wx->vfinfo[vf].link_enable;
+
+	return 0;
+}
+
+static int wx_get_fw_version(struct wx *wx, u32 *msgbuf, u32 vf)
+{
+	unsigned long fw_version = 0ULL;
+	int ret = 0;
+
+	ret = kstrtoul(wx->eeprom_id, 16, &fw_version);
+	if (ret)
+		return -EOPNOTSUPP;
+	msgbuf[1] = fw_version;
+
+	return 0;
+}
+
+static int wx_update_vf_xcast_mode(struct wx *wx, u32 *msgbuf, u32 vf)
+{
+	int xcast_mode = msgbuf[1];
+	u32 vmolr, disable, enable;
+
+	if (wx->vfinfo[vf].xcast_mode == xcast_mode)
+		return 0;
+
+	switch (xcast_mode) {
+	case WXVF_XCAST_MODE_NONE:
+		disable = WX_PSR_VM_L2CTL_BAM | WX_PSR_VM_L2CTL_ROMPE |
+			  WX_PSR_VM_L2CTL_MPE | WX_PSR_VM_L2CTL_UPE |
+			  WX_PSR_VM_L2CTL_VPE;
+		enable = 0;
+		break;
+	case WXVF_XCAST_MODE_MULTI:
+		disable = WX_PSR_VM_L2CTL_MPE | WX_PSR_VM_L2CTL_UPE |
+			  WX_PSR_VM_L2CTL_VPE;
+		enable = WX_PSR_VM_L2CTL_BAM | WX_PSR_VM_L2CTL_ROMPE;
+		break;
+	case WXVF_XCAST_MODE_ALLMULTI:
+		disable = WX_PSR_VM_L2CTL_UPE | WX_PSR_VM_L2CTL_VPE;
+		enable = WX_PSR_VM_L2CTL_BAM | WX_PSR_VM_L2CTL_ROMPE |
+			 WX_PSR_VM_L2CTL_MPE;
+		break;
+	case WXVF_XCAST_MODE_PROMISC:
+		disable = 0;
+		enable = WX_PSR_VM_L2CTL_BAM | WX_PSR_VM_L2CTL_ROMPE |
+			 WX_PSR_VM_L2CTL_MPE | WX_PSR_VM_L2CTL_UPE |
+			 WX_PSR_VM_L2CTL_VPE;
+		break;
+	default:
+		return -EOPNOTSUPP;
+	}
+
+	vmolr = rd32(wx, WX_PSR_VM_L2CTL(vf));
+	vmolr &= ~disable;
+	vmolr |= enable;
+	wr32(wx, WX_PSR_VM_L2CTL(vf), vmolr);
+
+	wx->vfinfo[vf].xcast_mode = xcast_mode;
+	msgbuf[1] = xcast_mode;
+
+	return 0;
+}
+
+static void wx_rcv_msg_from_vf(struct wx *wx, u16 vf)
+{
+	u16 mbx_size = WX_VXMAILBOX_SIZE;
+	u32 msgbuf[WX_VXMAILBOX_SIZE];
+	int retval;
+
+	retval = wx_read_mbx_pf(wx, msgbuf, mbx_size, vf);
+	if (retval) {
+		wx_err(wx, "Error receiving message from VF\n");
+		return;
+	}
+
+	/* this is a message we already processed, do nothing */
+	if (msgbuf[0] & (WX_VT_MSGTYPE_ACK | WX_VT_MSGTYPE_NACK))
+		return;
+
+	if (msgbuf[0] == WX_VF_RESET) {
+		wx_vf_reset_msg(wx, vf);
+		return;
+	}
+
+	/* until the vf completes a virtual function reset it should not be
+	 * allowed to start any configuration.
+	 */
+	if (!wx->vfinfo[vf].clear_to_send) {
+		msgbuf[0] |= WX_VT_MSGTYPE_NACK;
+		wx_write_mbx_pf(wx, msgbuf, 1, vf);
+		return;
+	}
+
+	switch ((msgbuf[0] & U16_MAX)) {
+	case WX_VF_SET_MAC_ADDR:
+		retval = wx_set_vf_mac_addr(wx, msgbuf, vf);
+		break;
+	case WX_VF_SET_MULTICAST:
+		wx_set_vf_multicasts(wx, msgbuf, vf);
+		retval = 0;
+		break;
+	case WX_VF_SET_VLAN:
+		retval = wx_set_vf_vlan_msg(wx, msgbuf, vf);
+		break;
+	case WX_VF_SET_LPE:
+		wx_set_vf_lpe(wx, msgbuf[1], vf);
+		retval = 0;
+		break;
+	case WX_VF_SET_MACVLAN:
+		retval = wx_set_vf_macvlan_msg(wx, msgbuf, vf);
+		break;
+	case WX_VF_API_NEGOTIATE:
+		retval = wx_negotiate_vf_api(wx, msgbuf, vf);
+		break;
+	case WX_VF_GET_QUEUES:
+		retval = wx_get_vf_queues(wx, msgbuf, vf);
+		break;
+	case WX_VF_GET_LINK_STATE:
+		retval = wx_get_vf_link_state(wx, msgbuf, vf);
+		break;
+	case WX_VF_GET_FW_VERSION:
+		retval = wx_get_fw_version(wx, msgbuf, vf);
+		break;
+	case WX_VF_UPDATE_XCAST_MODE:
+		retval = wx_update_vf_xcast_mode(wx, msgbuf, vf);
+		break;
+	case WX_VF_BACKUP:
+		break;
+	default:
+		wx_err(wx, "Unhandled Msg %8.8x\n", msgbuf[0]);
+		break;
+	}
+
+	/* notify the VF of the results of what it sent us */
+	if (retval)
+		msgbuf[0] |= WX_VT_MSGTYPE_NACK;
+	else
+		msgbuf[0] |= WX_VT_MSGTYPE_ACK;
+
+	msgbuf[0] |= WX_VT_MSGTYPE_CTS;
+
+	wx_write_mbx_pf(wx, msgbuf, mbx_size, vf);
+}
+
+static void wx_rcv_ack_from_vf(struct wx *wx, u16 vf)
+{
+	u32 msg = WX_VT_MSGTYPE_NACK;
+
+	/* if device isn't clear to send it shouldn't be reading either */
+	if (!wx->vfinfo[vf].clear_to_send)
+		wx_write_mbx_pf(wx, &msg, 1, vf);
+}
+
+void wx_msg_task(struct wx *wx)
+{
+	u16 vf;
+
+	for (vf = 0; vf < wx->num_vfs; vf++) {
+		/* process any reset requests */
+		if (!wx_check_for_rst_pf(wx, vf))
+			wx_vf_reset_event(wx, vf);
+
+		/* process any messages pending */
+		if (!wx_check_for_msg_pf(wx, vf))
+			wx_rcv_msg_from_vf(wx, vf);
+
+		/* process any acks */
+		if (!wx_check_for_ack_pf(wx, vf))
+			wx_rcv_ack_from_vf(wx, vf);
+	}
+}
+EXPORT_SYMBOL(wx_msg_task);
+
+void wx_disable_vf_rx_tx(struct wx *wx)
+{
+	wr32(wx, WX_TDM_VFTE_CLR(0), U32_MAX);
+	wr32(wx, WX_RDM_VFRE_CLR(0), U32_MAX);
+	if (test_bit(WX_FLAG_MULTI_64_FUNC, wx->flags)) {
+		wr32(wx, WX_TDM_VFTE_CLR(1), U32_MAX);
+		wr32(wx, WX_RDM_VFRE_CLR(1), U32_MAX);
+	}
+}
+EXPORT_SYMBOL(wx_disable_vf_rx_tx);
+
+void wx_ping_all_vfs_with_link_status(struct wx *wx, bool link_up)
+{
+	u32 msgbuf[2] = {0, 0};
+	u16 i;
+
+	if (!wx->num_vfs)
+		return;
+	msgbuf[0] = WX_PF_NOFITY_VF_LINK_STATUS | WX_PF_CONTROL_MSG;
+	if (link_up)
+		msgbuf[1] = FIELD_PREP(GENMASK(31, 1), wx->speed) | link_up;
+	if (wx->notify_down)
+		msgbuf[1] |= WX_PF_NOFITY_VF_NET_NOT_RUNNING;
+	for (i = 0; i < wx->num_vfs; i++) {
+		if (wx->vfinfo[i].clear_to_send)
+			msgbuf[0] |= WX_VT_MSGTYPE_CTS;
+		wx_write_mbx_pf(wx, msgbuf, 2, i);
+	}
+}
+EXPORT_SYMBOL(wx_ping_all_vfs_with_link_status);
+
+static void wx_set_vf_link_state(struct wx *wx, int vf, int state)
+{
+	wx->vfinfo[vf].link_state = state;
+	switch (state) {
+	case IFLA_VF_LINK_STATE_AUTO:
+		if (!test_bit(WX_STATE_DOWN, wx->state))
+			wx->vfinfo[vf].link_enable = true;
+		else
+			wx->vfinfo[vf].link_enable = false;
+		break;
+	case IFLA_VF_LINK_STATE_ENABLE:
+		wx->vfinfo[vf].link_enable = true;
+		break;
+	case IFLA_VF_LINK_STATE_DISABLE:
+		wx->vfinfo[vf].link_enable = false;
+		break;
+	}
+	/* restart the VF */
+	wx->vfinfo[vf].clear_to_send = false;
+	wx_ping_vf(wx, vf);
+
+	wx_set_vf_rx_tx(wx, vf);
+}
+
+void wx_set_all_vfs(struct wx *wx)
+{
+	int i;
+
+	for (i = 0; i < wx->num_vfs; i++)
+		wx_set_vf_link_state(wx, i, wx->vfinfo[i].link_state);
+}
+EXPORT_SYMBOL(wx_set_all_vfs);

linux-7.2.3/drivers/net/ethernet/wangxun/libwx/wx_sriov.h

@@ -0,0 +1,18 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2015 - 2025 Beijing WangXun Technology Co., Ltd. */
+
+#ifndef _WX_SRIOV_H_
+#define _WX_SRIOV_H_
+
+#define WX_VF_ENABLE_CHECK(_m)          FIELD_GET(BIT(31), (_m))
+#define WX_VF_NUM_GET(_m)               FIELD_GET(GENMASK(5, 0), (_m))
+#define WX_VF_ENABLE                    BIT(31)
+
+void wx_disable_sriov(struct wx *wx);
+int wx_pci_sriov_configure(struct pci_dev *pdev, int num_vfs);
+void wx_msg_task(struct wx *wx);
+void wx_disable_vf_rx_tx(struct wx *wx);
+void wx_ping_all_vfs_with_link_status(struct wx *wx, bool link_up);
+void wx_set_all_vfs(struct wx *wx);
+
+#endif /* _WX_SRIOV_H_ */

linux-7.2.3/drivers/net/ethernet/wangxun/libwx/wx_vf.c

@@ -0,0 +1,599 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2015 - 2025 Beijing WangXun Technology Co., Ltd. */
+
+#include <linux/etherdevice.h>
+#include <linux/pci.h>
+
+#include "wx_type.h"
+#include "wx_hw.h"
+#include "wx_mbx.h"
+#include "wx_vf.h"
+
+static void wx_virt_clr_reg(struct wx *wx)
+{
+	u32 vfsrrctl, i;
+
+	/* VRSRRCTL default values (BSIZEPACKET = 2048, BSIZEHEADER = 256) */
+	vfsrrctl = WX_VXRXDCTL_HDRSZ(wx_hdr_sz(WX_RX_HDR_SIZE));
+	vfsrrctl |= WX_VXRXDCTL_BUFSZ(wx_buf_sz(WX_RX_BUF_SIZE));
+
+	/* clear all rxd ctl */
+	for (i = 0; i < WX_VF_MAX_RING_NUMS; i++)
+		wr32m(wx, WX_VXRXDCTL(i),
+		      WX_VXRXDCTL_HDRSZ_MASK | WX_VXRXDCTL_BUFSZ_MASK,
+		      vfsrrctl);
+
+	rd32(wx, WX_VXSTATUS);
+}
+
+/**
+ *  wx_init_hw_vf - virtual function hardware initialization
+ *  @wx: pointer to hardware structure
+ *
+ *  Initialize the mac address
+ **/
+void wx_init_hw_vf(struct wx *wx)
+{
+	wx_get_mac_addr_vf(wx, wx->mac.addr);
+}
+EXPORT_SYMBOL(wx_init_hw_vf);
+
+static int wx_mbx_write_and_read_reply(struct wx *wx, u32 *req_buf,
+				       u32 *resp_buf, u16 size)
+{
+	int ret;
+
+	ret = wx_write_posted_mbx(wx, req_buf, size);
+	if (ret)
+		return ret;
+
+	return wx_read_posted_mbx(wx, resp_buf, size);
+}
+
+/**
+ *  wx_reset_hw_vf - Performs hardware reset
+ *  @wx: pointer to hardware structure
+ *
+ *  Resets the hardware by resetting the transmit and receive units, masks and
+ *  clears all interrupts.
+ *
+ *  Return: returns 0 on success, negative error code on failure
+ **/
+int wx_reset_hw_vf(struct wx *wx)
+{
+	struct wx_mbx_info *mbx = &wx->mbx;
+	u32 msgbuf[4] = {WX_VF_RESET};
+	u8 *addr = (u8 *)(&msgbuf[1]);
+	u32 b4_buf[16] = {0};
+	u32 timeout = 200;
+	int ret;
+	u32 i;
+
+	/* Call wx stop to disable tx/rx and clear interrupts */
+	wx_stop_adapter_vf(wx);
+
+	/* reset the api version */
+	wx->vfinfo->vf_api = wx_mbox_api_null;
+
+	/* backup msix vectors */
+	if (wx->b4_addr) {
+		for (i = 0; i < 16; i++)
+			b4_buf[i] = readl(wx->b4_addr + i * 4);
+	}
+
+	wr32m(wx, WX_VXCTRL, WX_VXCTRL_RST, WX_VXCTRL_RST);
+	rd32(wx, WX_VXSTATUS);
+
+	/* we cannot reset while the RSTI / RSTD bits are asserted */
+	while (!wx_check_for_rst_vf(wx) && timeout) {
+		timeout--;
+		udelay(5);
+	}
+
+	/* restore msix vectors */
+	if (wx->b4_addr) {
+		for (i = 0; i < 16; i++)
+			writel(b4_buf[i], wx->b4_addr + i * 4);
+	}
+
+	/* amlite: bme */
+	if (wx->mac.type == wx_mac_aml || wx->mac.type == wx_mac_aml40)
+		wr32(wx, WX_VX_PF_BME, WX_VF_BME_ENABLE);
+
+	if (!timeout)
+		return -EBUSY;
+
+	/* Reset VF registers to initial values */
+	wx_virt_clr_reg(wx);
+
+	/* mailbox timeout can now become active */
+	mbx->timeout = 2000;
+
+	ret = wx_mbx_write_and_read_reply(wx, msgbuf, msgbuf,
+					  ARRAY_SIZE(msgbuf));
+	if (ret)
+		return ret;
+
+	if (msgbuf[0] != (WX_VF_RESET | WX_VT_MSGTYPE_ACK) &&
+	    msgbuf[0] != (WX_VF_RESET | WX_VT_MSGTYPE_NACK))
+		return -EINVAL;
+
+	if (msgbuf[0] == (WX_VF_RESET | WX_VT_MSGTYPE_ACK))
+		ether_addr_copy(wx->mac.perm_addr, addr);
+
+	wx->mac.mc_filter_type = msgbuf[3];
+
+	return 0;
+}
+EXPORT_SYMBOL(wx_reset_hw_vf);
+
+/**
+ *  wx_stop_adapter_vf - Generic stop Tx/Rx units
+ *  @wx: pointer to hardware structure
+ *
+ *  Clears interrupts, disables transmit and receive units.
+ **/
+void wx_stop_adapter_vf(struct wx *wx)
+{
+	u32 reg_val;
+	u16 i;
+
+	/* Clear interrupt mask to stop from interrupts being generated */
+	wr32(wx, WX_VXIMS, WX_VF_IRQ_CLEAR_MASK);
+
+	/* Clear any pending interrupts, flush previous writes */
+	wr32(wx, WX_VXICR, U32_MAX);
+
+	/* Disable the transmit unit.  Each queue must be disabled. */
+	for (i = 0; i < wx->mac.max_tx_queues; i++)
+		wr32(wx, WX_VXTXDCTL(i), WX_VXTXDCTL_FLUSH);
+
+	/* Disable the receive unit by stopping each queue */
+	for (i = 0; i < wx->mac.max_rx_queues; i++) {
+		reg_val = rd32(wx, WX_VXRXDCTL(i));
+		reg_val &= ~WX_VXRXDCTL_ENABLE;
+		wr32(wx, WX_VXRXDCTL(i), reg_val);
+	}
+	/* Clear packet split and pool config */
+	wr32(wx, WX_VXMRQC, 0);
+
+	/* flush all queues disables */
+	rd32(wx, WX_VXSTATUS);
+}
+EXPORT_SYMBOL(wx_stop_adapter_vf);
+
+/**
+ *  wx_set_rar_vf - set device MAC address
+ *  @wx: pointer to hardware structure
+ *  @index: Receive address register to write
+ *  @addr: Address to put into receive address register
+ *  @enable_addr: set flag that address is active
+ *
+ *  Return: returns 0 on success, negative error code on failure
+ **/
+int wx_set_rar_vf(struct wx *wx, u32 index, u8 *addr, u32 enable_addr)
+{
+	u32 msgbuf[3] = {WX_VF_SET_MAC_ADDR};
+	u8 *msg_addr = (u8 *)(&msgbuf[1]);
+	int ret;
+
+	memcpy(msg_addr, addr, ETH_ALEN);
+
+	ret = wx_mbx_write_and_read_reply(wx, msgbuf, msgbuf,
+					  ARRAY_SIZE(msgbuf));
+	if (ret)
+		return ret;
+	msgbuf[0] &= ~WX_VT_MSGTYPE_CTS;
+
+	/* if nacked the address was rejected, use "perm_addr" */
+	if (msgbuf[0] == (WX_VF_SET_MAC_ADDR | WX_VT_MSGTYPE_NACK)) {
+		wx_get_mac_addr_vf(wx, wx->mac.addr);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL(wx_set_rar_vf);
+
+/**
+ *  wx_update_mc_addr_list_vf - Update Multicast addresses
+ *  @wx: pointer to the HW structure
+ *  @netdev: pointer to the net device structure
+ *
+ *  Updates the Multicast Table Array.
+ *
+ *  Return: returns 0 on success, negative error code on failure
+ **/
+int wx_update_mc_addr_list_vf(struct wx *wx, struct net_device *netdev)
+{
+	u32 msgbuf[WX_VXMAILBOX_SIZE] = {WX_VF_SET_MULTICAST};
+	u16 *vector_l = (u16 *)&msgbuf[1];
+	struct netdev_hw_addr *ha;
+	u32 cnt, i;
+
+	cnt = netdev_mc_count(netdev);
+	if (cnt > 28)
+		cnt = 28;
+	msgbuf[0] |= cnt << WX_VT_MSGINFO_SHIFT;
+
+	i = 0;
+	netdev_for_each_mc_addr(ha, netdev) {
+		if (i == cnt)
+			break;
+		if (is_link_local_ether_addr(ha->addr))
+			continue;
+
+		vector_l[i++] = wx_mta_vector(wx, ha->addr);
+	}
+
+	return wx_write_posted_mbx(wx, msgbuf, ARRAY_SIZE(msgbuf));
+}
+EXPORT_SYMBOL(wx_update_mc_addr_list_vf);
+
+/**
+ *  wx_update_xcast_mode_vf - Update Multicast mode
+ *  @wx: pointer to the HW structure
+ *  @xcast_mode: new multicast mode
+ *
+ *  Updates the Multicast Mode of VF.
+ *
+ *  Return: returns 0 on success, negative error code on failure
+ **/
+int wx_update_xcast_mode_vf(struct wx *wx, int xcast_mode)
+{
+	u32 msgbuf[2] = {WX_VF_UPDATE_XCAST_MODE, xcast_mode};
+	int ret = 0;
+
+	if (wx->vfinfo->vf_api < wx_mbox_api_13)
+		return -EINVAL;
+
+	ret = wx_mbx_write_and_read_reply(wx, msgbuf, msgbuf,
+					  ARRAY_SIZE(msgbuf));
+	if (ret)
+		return ret;
+
+	msgbuf[0] &= ~WX_VT_MSGTYPE_CTS;
+	if (msgbuf[0] == (WX_VF_UPDATE_XCAST_MODE | WX_VT_MSGTYPE_NACK))
+		return -EINVAL;
+
+	return 0;
+}
+EXPORT_SYMBOL(wx_update_xcast_mode_vf);
+
+/**
+ * wx_get_link_state_vf - Get VF link state from PF
+ * @wx: pointer to the HW structure
+ * @link_state: link state storage
+ *
+ * Return: return state of the operation error or success.
+ **/
+int wx_get_link_state_vf(struct wx *wx, u16 *link_state)
+{
+	u32 msgbuf[2] = {WX_VF_GET_LINK_STATE};
+	int ret;
+
+	ret = wx_mbx_write_and_read_reply(wx, msgbuf, msgbuf,
+					  ARRAY_SIZE(msgbuf));
+	if (ret)
+		return ret;
+
+	if (msgbuf[0] & WX_VT_MSGTYPE_NACK)
+		return -EINVAL;
+
+	*link_state = msgbuf[1];
+
+	return 0;
+}
+EXPORT_SYMBOL(wx_get_link_state_vf);
+
+/**
+ *  wx_set_vfta_vf - Set/Unset vlan filter table address
+ *  @wx: pointer to the HW structure
+ *  @vlan: 12 bit VLAN ID
+ *  @vind: unused by VF drivers
+ *  @vlan_on: if true then set bit, else clear bit
+ *  @vlvf_bypass: boolean flag indicating updating default pool is okay
+ *
+ *  Turn on/off specified VLAN in the VLAN filter table.
+ *
+ *  Return: returns 0 on success, negative error code on failure
+ **/
+int wx_set_vfta_vf(struct wx *wx, u32 vlan, u32 vind, bool vlan_on,
+		   bool vlvf_bypass)
+{
+	u32 msgbuf[2] = {WX_VF_SET_VLAN, vlan};
+	bool vlan_offload = false;
+	int ret;
+
+	/* Setting the 8 bit field MSG INFO to TRUE indicates "add" */
+	msgbuf[0] |= vlan_on << WX_VT_MSGINFO_SHIFT;
+	/* if vf vlan offload is disabled, allow to create vlan under pf port vlan */
+	msgbuf[0] |= BIT(vlan_offload);
+
+	ret = wx_mbx_write_and_read_reply(wx, msgbuf, msgbuf,
+					  ARRAY_SIZE(msgbuf));
+	if (ret)
+		return ret;
+
+	if (msgbuf[0] & WX_VT_MSGTYPE_ACK)
+		return 0;
+
+	return msgbuf[0] & WX_VT_MSGTYPE_NACK;
+}
+EXPORT_SYMBOL(wx_set_vfta_vf);
+
+void wx_get_mac_addr_vf(struct wx *wx, u8 *mac_addr)
+{
+	ether_addr_copy(mac_addr, wx->mac.perm_addr);
+}
+EXPORT_SYMBOL(wx_get_mac_addr_vf);
+
+int wx_get_fw_version_vf(struct wx *wx)
+{
+	u32 msgbuf[2] = {WX_VF_GET_FW_VERSION};
+	int ret;
+
+	ret = wx_mbx_write_and_read_reply(wx, msgbuf, msgbuf,
+					  ARRAY_SIZE(msgbuf));
+	if (ret)
+		return ret;
+
+	if (msgbuf[0] & WX_VT_MSGTYPE_NACK)
+		return -EINVAL;
+	snprintf(wx->eeprom_id, 32, "0x%08x", msgbuf[1]);
+
+	return 0;
+}
+EXPORT_SYMBOL(wx_get_fw_version_vf);
+
+int wx_set_uc_addr_vf(struct wx *wx, u32 index, u8 *addr)
+{
+	u32 msgbuf[3] = {WX_VF_SET_MACVLAN};
+	u8 *msg_addr = (u8 *)(&msgbuf[1]);
+	int ret;
+
+	/* If index is one then this is the start of a new list and needs
+	 * indication to the PF so it can do it's own list management.
+	 * If it is zero then that tells the PF to just clear all of
+	 * this VF's macvlans and there is no new list.
+	 */
+	msgbuf[0] |= index << WX_VT_MSGINFO_SHIFT;
+	if (addr)
+		memcpy(msg_addr, addr, 6);
+	ret = wx_mbx_write_and_read_reply(wx, msgbuf, msgbuf,
+					  ARRAY_SIZE(msgbuf));
+	if (ret)
+		return ret;
+
+	msgbuf[0] &= ~WX_VT_MSGTYPE_CTS;
+
+	if (msgbuf[0] == (WX_VF_SET_MACVLAN | WX_VT_MSGTYPE_NACK))
+		return -EINVAL;
+
+	return 0;
+}
+EXPORT_SYMBOL(wx_set_uc_addr_vf);
+
+/**
+ *  wx_rlpml_set_vf - Set the maximum receive packet length
+ *  @wx: pointer to the HW structure
+ *  @max_size: value to assign to max frame size
+ *
+ *  Return: returns 0 on success, negative error code on failure
+ **/
+int wx_rlpml_set_vf(struct wx *wx, u16 max_size)
+{
+	u32 msgbuf[2] = {WX_VF_SET_LPE, max_size};
+	int ret;
+
+	ret = wx_mbx_write_and_read_reply(wx, msgbuf, msgbuf,
+					  ARRAY_SIZE(msgbuf));
+	if (ret)
+		return ret;
+	if ((msgbuf[0] & WX_VF_SET_LPE) &&
+	    (msgbuf[0] & WX_VT_MSGTYPE_NACK))
+		return -EINVAL;
+
+	return 0;
+}
+EXPORT_SYMBOL(wx_rlpml_set_vf);
+
+/**
+ *  wx_negotiate_api_version - Negotiate supported API version
+ *  @wx: pointer to the HW structure
+ *  @api: integer containing requested API version
+ *
+ *  Return: returns 0 on success, negative error code on failure
+ **/
+int wx_negotiate_api_version(struct wx *wx, int api)
+{
+	u32 msgbuf[2] = {WX_VF_API_NEGOTIATE, api};
+	int ret;
+
+	ret = wx_mbx_write_and_read_reply(wx, msgbuf, msgbuf,
+					  ARRAY_SIZE(msgbuf));
+	if (ret)
+		return ret;
+
+	msgbuf[0] &= ~WX_VT_MSGTYPE_CTS;
+
+	/* Store value and return 0 on success */
+	if (msgbuf[0] == (WX_VF_API_NEGOTIATE | WX_VT_MSGTYPE_NACK))
+		return -EINVAL;
+	wx->vfinfo->vf_api = api;
+
+	return 0;
+}
+EXPORT_SYMBOL(wx_negotiate_api_version);
+
+int wx_get_queues_vf(struct wx *wx, u32 *num_tcs, u32 *default_tc)
+{
+	u32 msgbuf[5] = {WX_VF_GET_QUEUES};
+	int ret;
+
+	/* do nothing if API doesn't support wx_get_queues */
+	if (wx->vfinfo->vf_api < wx_mbox_api_13)
+		return -EINVAL;
+
+	/* Fetch queue configuration from the PF */
+	ret = wx_mbx_write_and_read_reply(wx, msgbuf, msgbuf,
+					  ARRAY_SIZE(msgbuf));
+	if (ret)
+		return ret;
+	msgbuf[0] &= ~WX_VT_MSGTYPE_CTS;
+
+	/* if we didn't get an ACK there must have been
+	 * some sort of mailbox error so we should treat it
+	 * as such
+	 */
+	if (msgbuf[0] != (WX_VF_GET_QUEUES | WX_VT_MSGTYPE_ACK))
+		return -EINVAL;
+	/* record and validate values from message */
+	wx->mac.max_tx_queues = msgbuf[WX_VF_TX_QUEUES];
+	if (wx->mac.max_tx_queues == 0 ||
+	    wx->mac.max_tx_queues > WX_VF_MAX_TX_QUEUES)
+		wx->mac.max_tx_queues = WX_VF_MAX_TX_QUEUES;
+
+	wx->mac.max_rx_queues = msgbuf[WX_VF_RX_QUEUES];
+	if (wx->mac.max_rx_queues == 0 ||
+	    wx->mac.max_rx_queues > WX_VF_MAX_RX_QUEUES)
+		wx->mac.max_rx_queues = WX_VF_MAX_RX_QUEUES;
+
+	*num_tcs = msgbuf[WX_VF_TRANS_VLAN];
+	/* in case of unknown state assume we cannot tag frames */
+	if (*num_tcs > wx->mac.max_rx_queues)
+		*num_tcs = 1;
+	*default_tc = msgbuf[WX_VF_DEF_QUEUE];
+	/* default to queue 0 on out-of-bounds queue number */
+	if (*default_tc >= wx->mac.max_tx_queues)
+		*default_tc = 0;
+
+	return 0;
+}
+EXPORT_SYMBOL(wx_get_queues_vf);
+
+static int wx_get_link_status_from_pf(struct wx *wx, u32 *msgbuf)
+{
+	u32 links_reg = msgbuf[1];
+
+	if (msgbuf[1] & WX_PF_NOFITY_VF_NET_NOT_RUNNING)
+		wx->notify_down = true;
+	else
+		wx->notify_down = false;
+
+	if (wx->notify_down) {
+		wx->link = false;
+		wx->speed = SPEED_UNKNOWN;
+		return 0;
+	}
+
+	wx->link = WX_PFLINK_STATUS(links_reg);
+	wx->speed = WX_PFLINK_SPEED(links_reg);
+
+	return 0;
+}
+
+static int wx_pf_ping_vf(struct wx *wx, u32 *msgbuf)
+{
+	if (!(msgbuf[0] & WX_VT_MSGTYPE_CTS))
+		/* msg is not CTS, we need to do reset */
+		return -EINVAL;
+
+	return 0;
+}
+
+static struct wx_link_reg_fields wx_speed_lookup_vf[] = {
+	{wx_mac_unknown},
+	{wx_mac_sp, SPEED_10000, SPEED_1000, SPEED_100, SPEED_UNKNOWN, SPEED_UNKNOWN},
+	{wx_mac_em, SPEED_1000,  SPEED_100, SPEED_10, SPEED_UNKNOWN, SPEED_UNKNOWN},
+	{wx_mac_aml, SPEED_40000, SPEED_25000, SPEED_10000, SPEED_1000, SPEED_UNKNOWN},
+	{wx_mac_aml40, SPEED_40000, SPEED_25000, SPEED_10000, SPEED_1000, SPEED_UNKNOWN},
+};
+
+static void wx_check_physical_link(struct wx *wx)
+{
+	u32 val, link_val;
+	int ret;
+
+	/* get link status from hw status reg
+	 * for SFP+ modules and DA cables, it can take up to 500usecs
+	 * before the link status is correct
+	 */
+	if (wx->mac.type == wx_mac_em)
+		ret = read_poll_timeout_atomic(rd32, val, val & GENMASK(4, 1),
+					       100, 500, false, wx, WX_VXSTATUS);
+	else
+		ret = read_poll_timeout_atomic(rd32, val, val & BIT(0), 100,
+					       500, false, wx, WX_VXSTATUS);
+	if (ret) {
+		wx->speed = SPEED_UNKNOWN;
+		wx->link = false;
+		return;
+	}
+
+	wx->link = true;
+	link_val = WX_VXSTATUS_SPEED(val);
+
+	if (link_val & BIT(0))
+		wx->speed = wx_speed_lookup_vf[wx->mac.type].bit0_f;
+	else if (link_val & BIT(1))
+		wx->speed = wx_speed_lookup_vf[wx->mac.type].bit1_f;
+	else if (link_val & BIT(2))
+		wx->speed = wx_speed_lookup_vf[wx->mac.type].bit2_f;
+	else if (link_val & BIT(3))
+		wx->speed = wx_speed_lookup_vf[wx->mac.type].bit3_f;
+	else
+		wx->speed = SPEED_UNKNOWN;
+}
+
+int wx_check_mac_link_vf(struct wx *wx)
+{
+	struct wx_mbx_info *mbx = &wx->mbx;
+	u32 msgbuf[2] = {0};
+	int ret = 0;
+
+	if (!mbx->timeout)
+		goto out;
+
+	wx_check_for_rst_vf(wx);
+	if (!wx_check_for_msg_vf(wx))
+		ret = wx_read_mbx_vf(wx, msgbuf, 2);
+	if (ret)
+		goto out;
+
+	switch (msgbuf[0] & GENMASK(8, 0)) {
+	case WX_PF_NOFITY_VF_LINK_STATUS | WX_PF_CONTROL_MSG:
+		ret = wx_get_link_status_from_pf(wx, msgbuf);
+		goto out;
+	case WX_PF_CONTROL_MSG:
+		ret = wx_pf_ping_vf(wx, msgbuf);
+		goto out;
+	case 0:
+		if (msgbuf[0] & WX_VT_MSGTYPE_NACK) {
+			/* msg is NACK, we must have lost CTS status */
+			ret = -EBUSY;
+			goto out;
+		}
+		/* no message, check link status */
+		wx_check_physical_link(wx);
+		goto out;
+	default:
+		break;
+	}
+
+	if (!(msgbuf[0] & WX_VT_MSGTYPE_CTS)) {
+		/* msg is not CTS and is NACK we must have lost CTS status */
+		if (msgbuf[0] & WX_VT_MSGTYPE_NACK)
+			ret = -EBUSY;
+		goto out;
+	}
+
+	/* the pf is talking, if we timed out in the past we reinit */
+	if (!mbx->timeout) {
+		ret = -EBUSY;
+		goto out;
+	}
+
+out:
+	return ret;
+}

linux-7.2.3/drivers/net/ethernet/wangxun/libwx/wx_vf.h

@@ -0,0 +1,129 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2015 - 2025 Beijing WangXun Technology Co., Ltd. */
+
+#ifndef _WX_VF_H_
+#define _WX_VF_H_
+
+/* Control registers */
+#define WX_VF_MAX_RING_NUMS      8
+#define WX_VX_PF_BME             0x4B8
+#define WX_VF_BME_ENABLE         BIT(0)
+#define WX_VXSTATUS              0x4
+#define WX_VXCTRL                0x8
+#define WX_VXCTRL_RST            BIT(0)
+
+#define WX_VXMRQC                0x78
+#define WX_VXMRQC_PSR_L4HDR      BIT(0)
+#define WX_VXMRQC_PSR_L3HDR      BIT(1)
+#define WX_VXMRQC_PSR_L2HDR      BIT(2)
+#define WX_VXMRQC_PSR_TUNHDR     BIT(3)
+#define WX_VXMRQC_PSR_TUNMAC     BIT(4)
+#define WX_VXMRQC_PSR_MASK       GENMASK(5, 1)
+#define WX_VXMRQC_PSR(f)         FIELD_PREP(GENMASK(5, 1), f)
+#define WX_VXMRQC_RSS_HASH(f)    FIELD_PREP(GENMASK(15, 13), f)
+#define WX_VXMRQC_RSS_MASK       GENMASK(31, 16)
+#define WX_VXMRQC_RSS(f)         FIELD_PREP(GENMASK(31, 16), f)
+#define WX_VXMRQC_RSS_ALG_IPV4_TCP   BIT(0)
+#define WX_VXMRQC_RSS_ALG_IPV4       BIT(1)
+#define WX_VXMRQC_RSS_ALG_IPV6       BIT(4)
+#define WX_VXMRQC_RSS_ALG_IPV6_TCP   BIT(5)
+#define WX_VXMRQC_RSS_EN             BIT(8)
+
+#define WX_VXRSSRK(i)            (0x80 + ((i) * 4)) /* i=[0,9] */
+#define WX_VXRETA(i)             (0xC0 + ((i) * 4)) /* i=[0,15] */
+
+/* Interrupt registers */
+#define WX_VXICR                 0x100
+#define WX_VXIMS                 0x108
+#define WX_VXIMC                 0x10C
+#define WX_VF_IRQ_CLEAR_MASK     7
+#define WX_VF_MAX_TX_QUEUES      4
+#define WX_VF_MAX_RX_QUEUES      4
+
+#define WX_VXITR(i)              (0x200 + (4 * (i))) /* i=[0,1] */
+#define WX_VXITR_MASK            GENMASK(8, 0)
+#define WX_VXITR_CNT_WDIS        BIT(31)
+#define WX_VXIVAR_MISC           0x260
+#define WX_VXIVAR(i)             (0x240 + (4 * (i))) /* i=[0,3] */
+
+#define wx_conf_size(v, mwidth, uwidth) ({ \
+	typeof(v) _v = (v); \
+	(_v == 2 << (mwidth) ? 0 : _v >> (uwidth)); \
+})
+#define wx_buf_len(v)            wx_conf_size(v, 13, 7)
+#define wx_hdr_sz(v)             wx_conf_size(v, 10, 6)
+#define wx_buf_sz(v)             wx_conf_size(v, 14, 10)
+#define wx_pkt_thresh(v)         wx_conf_size(v, 4, 0)
+
+#define WX_RX_HDR_SIZE           256
+#define WX_RX_BUF_SIZE           2048
+
+#define WX_RXBUFFER_2048         (2048)
+#define WX_RXBUFFER_3072         3072
+
+/* Receive Path */
+#define WX_VXRDBAL(r)            (0x1000 + (0x40 * (r)))
+#define WX_VXRDBAH(r)            (0x1004 + (0x40 * (r)))
+#define WX_VXRDT(r)              (0x1008 + (0x40 * (r)))
+#define WX_VXRDH(r)              (0x100C + (0x40 * (r)))
+#define WX_VXRXDCTL(r)           (0x1010 + (0x40 * (r)))
+#define WX_VXRXDCTL_ENABLE       BIT(0)
+#define WX_VXRXDCTL_BUFLEN_MASK  GENMASK(6, 1)
+#define WX_VXRXDCTL_BUFLEN(f)    FIELD_PREP(GENMASK(6, 1), f)
+#define WX_VXRXDCTL_BUFSZ_MASK   GENMASK(11, 8)
+#define WX_VXRXDCTL_BUFSZ(f)     FIELD_PREP(GENMASK(11, 8), f)
+#define WX_VXRXDCTL_HDRSZ_MASK   GENMASK(15, 12)
+#define WX_VXRXDCTL_HDRSZ(f)     FIELD_PREP(GENMASK(15, 12), f)
+#define WX_VXRXDCTL_DESC_MERGE   BIT(19)
+#define WX_VXRXDCTL_RSCMAX_MASK  GENMASK(24, 23)
+#define WX_VXRXDCTL_RSCMAX(f)    FIELD_PREP(GENMASK(24, 23), f)
+#define WX_VXRXDCTL_RSCEN        BIT(29)
+#define WX_VXRXDCTL_DROP         BIT(30)
+#define WX_VXRXDCTL_VLAN         BIT(31)
+
+/* Transimit Path */
+#define WX_VXTDBAL(r)            (0x3000 + (0x40 * (r)))
+#define WX_VXTDBAH(r)            (0x3004 + (0x40 * (r)))
+#define WX_VXTDT(r)              (0x3008 + (0x40 * (r)))
+#define WX_VXTDH(r)              (0x300C + (0x40 * (r)))
+#define WX_VXTXDCTL(r)           (0x3010 + (0x40 * (r)))
+#define WX_VXTXDCTL_ENABLE       BIT(0)
+#define WX_VXTXDCTL_BUFLEN(f)    FIELD_PREP(GENMASK(6, 1), f)
+#define WX_VXTXDCTL_PTHRESH(f)   FIELD_PREP(GENMASK(11, 8), f)
+#define WX_VXTXDCTL_WTHRESH(f)   FIELD_PREP(GENMASK(22, 16), f)
+#define WX_VXTXDCTL_FLUSH        BIT(26)
+#define WX_VXTXDCTL_HEAD_WB      BIT(27)
+#define WX_VXTXD_HEAD_ADDRL(r)   (0x3028 + (0x40 * (r)))
+#define WX_VXTXD_HEAD_ADDRH(r)   (0x302C + (0x40 * (r)))
+
+#define WX_PFLINK_STATUS(g)      FIELD_GET(BIT(0), g)
+#define WX_PFLINK_SPEED(g)       FIELD_GET(GENMASK(31, 1), g)
+#define WX_VXSTATUS_SPEED(g)     FIELD_GET(GENMASK(4, 1), g)
+
+struct wx_link_reg_fields {
+	u32 mac_type;
+	u32 bit0_f;
+	u32 bit1_f;
+	u32 bit2_f;
+	u32 bit3_f;
+	u32 bit4_f;
+};
+
+void wx_init_hw_vf(struct wx *wx);
+int wx_reset_hw_vf(struct wx *wx);
+void wx_get_mac_addr_vf(struct wx *wx, u8 *mac_addr);
+void wx_stop_adapter_vf(struct wx *wx);
+int wx_get_fw_version_vf(struct wx *wx);
+int wx_set_rar_vf(struct wx *wx, u32 index, u8 *addr, u32 enable_addr);
+int wx_update_mc_addr_list_vf(struct wx *wx, struct net_device *netdev);
+int wx_set_uc_addr_vf(struct wx *wx, u32 index, u8 *addr);
+int wx_rlpml_set_vf(struct wx *wx, u16 max_size);
+int wx_negotiate_api_version(struct wx *wx, int api);
+int wx_get_queues_vf(struct wx *wx, u32 *num_tcs, u32 *default_tc);
+int wx_update_xcast_mode_vf(struct wx *wx, int xcast_mode);
+int wx_get_link_state_vf(struct wx *wx, u16 *link_state);
+int wx_set_vfta_vf(struct wx *wx, u32 vlan, u32 vind, bool vlan_on,
+		   bool vlvf_bypass);
+int wx_check_mac_link_vf(struct wx *wx);
+
+#endif /* _WX_VF_H_ */

linux-7.2.3/drivers/net/ethernet/wangxun/libwx/wx_vf_common.c

@@ -0,0 +1,421 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2015 - 2025 Beijing WangXun Technology Co., Ltd. */
+
+#include <linux/etherdevice.h>
+#include <linux/pci.h>
+
+#include "wx_type.h"
+#include "wx_mbx.h"
+#include "wx_lib.h"
+#include "wx_vf.h"
+#include "wx_vf_lib.h"
+#include "wx_vf_common.h"
+
+int wxvf_suspend(struct device *dev_d)
+{
+	struct pci_dev *pdev = to_pci_dev(dev_d);
+	struct wx *wx = pci_get_drvdata(pdev);
+
+	netif_device_detach(wx->netdev);
+	wx_clear_interrupt_scheme(wx);
+	pci_disable_device(pdev);
+
+	return 0;
+}
+EXPORT_SYMBOL(wxvf_suspend);
+
+void wxvf_shutdown(struct pci_dev *pdev)
+{
+	wxvf_suspend(&pdev->dev);
+}
+EXPORT_SYMBOL(wxvf_shutdown);
+
+int wxvf_resume(struct device *dev_d)
+{
+	struct pci_dev *pdev = to_pci_dev(dev_d);
+	struct wx *wx = pci_get_drvdata(pdev);
+
+	pci_set_master(pdev);
+	wx_init_interrupt_scheme(wx);
+	netif_device_attach(wx->netdev);
+
+	return 0;
+}
+EXPORT_SYMBOL(wxvf_resume);
+
+void wxvf_remove(struct pci_dev *pdev)
+{
+	struct wx *wx = pci_get_drvdata(pdev);
+	struct net_device *netdev;
+
+	netdev = wx->netdev;
+	unregister_netdev(netdev);
+	timer_shutdown_sync(&wx->service_timer);
+	cancel_work_sync(&wx->service_task);
+	kfree(wx->vfinfo);
+	kfree(wx->rss_key);
+	kfree(wx->mac_table);
+	wx_clear_interrupt_scheme(wx);
+	pci_release_selected_regions(pdev,
+				     pci_select_bars(pdev, IORESOURCE_MEM));
+	pci_disable_device(pdev);
+}
+EXPORT_SYMBOL(wxvf_remove);
+
+static irqreturn_t wx_msix_misc_vf(int __always_unused irq, void *data)
+{
+	struct wx *wx = data;
+
+	set_bit(WX_FLAG_NEED_UPDATE_LINK, wx->flags);
+	/* Clear the interrupt */
+	if (!test_bit(WX_STATE_DOWN, wx->state))
+		wr32(wx, WX_VXIMC, wx->eims_other);
+
+	return IRQ_HANDLED;
+}
+
+int wx_request_msix_irqs_vf(struct wx *wx)
+{
+	struct net_device *netdev = wx->netdev;
+	int vector, err;
+
+	for (vector = 0; vector < wx->num_q_vectors; vector++) {
+		struct wx_q_vector *q_vector = wx->q_vector[vector];
+		struct msix_entry *entry = &wx->msix_q_entries[vector];
+
+		if (q_vector->tx.ring && q_vector->rx.ring)
+			snprintf(q_vector->name, sizeof(q_vector->name) - 1,
+				 "%s-TxRx-%d", netdev->name, entry->entry);
+		else
+			/* skip this unused q_vector */
+			continue;
+
+		err = request_irq(entry->vector, wx_msix_clean_rings, 0,
+				  q_vector->name, q_vector);
+		if (err) {
+			wx_err(wx, "request_irq failed for MSIX interrupt %s Error: %d\n",
+			       q_vector->name, err);
+			goto free_queue_irqs;
+		}
+	}
+
+	err = request_irq(wx->msix_entry->vector, wx_msix_misc_vf,
+			  0, netdev->name, wx);
+	if (err) {
+		wx_err(wx, "request_irq for msix_other failed: %d\n", err);
+		goto free_queue_irqs;
+	}
+
+	return 0;
+
+free_queue_irqs:
+	while (vector) {
+		vector--;
+		free_irq(wx->msix_q_entries[vector].vector,
+			 wx->q_vector[vector]);
+	}
+	wx_reset_interrupt_capability(wx);
+	return err;
+}
+EXPORT_SYMBOL(wx_request_msix_irqs_vf);
+
+void wx_negotiate_api_vf(struct wx *wx)
+{
+	int api[] = {
+		     wx_mbox_api_13,
+		     wx_mbox_api_null};
+	int err = 0, idx = 0;
+
+	spin_lock_bh(&wx->mbx.mbx_lock);
+	while (api[idx] != wx_mbox_api_null) {
+		err = wx_negotiate_api_version(wx, api[idx]);
+		if (!err)
+			break;
+		idx++;
+	}
+	spin_unlock_bh(&wx->mbx.mbx_lock);
+}
+EXPORT_SYMBOL(wx_negotiate_api_vf);
+
+void wx_reset_vf(struct wx *wx)
+{
+	struct net_device *netdev = wx->netdev;
+	int ret = 0;
+
+	ret = wx_reset_hw_vf(wx);
+	if (!ret)
+		wx_init_hw_vf(wx);
+	wx_negotiate_api_vf(wx);
+	if (is_valid_ether_addr(wx->mac.addr)) {
+		eth_hw_addr_set(netdev, wx->mac.addr);
+		ether_addr_copy(netdev->perm_addr, wx->mac.addr);
+	}
+}
+EXPORT_SYMBOL(wx_reset_vf);
+
+void wx_set_rx_mode_vf(struct net_device *netdev)
+{
+	struct wx *wx = netdev_priv(netdev);
+	unsigned int flags = netdev->flags;
+	int xcast_mode;
+
+	xcast_mode = (flags & IFF_ALLMULTI) ? WXVF_XCAST_MODE_ALLMULTI :
+		     (flags & (IFF_BROADCAST | IFF_MULTICAST)) ?
+		     WXVF_XCAST_MODE_MULTI : WXVF_XCAST_MODE_NONE;
+	/* request the most inclusive mode we need */
+	if (flags & IFF_PROMISC)
+		xcast_mode = WXVF_XCAST_MODE_PROMISC;
+	else if (flags & IFF_ALLMULTI)
+		xcast_mode = WXVF_XCAST_MODE_ALLMULTI;
+	else if (flags & (IFF_BROADCAST | IFF_MULTICAST))
+		xcast_mode = WXVF_XCAST_MODE_MULTI;
+	else
+		xcast_mode = WXVF_XCAST_MODE_NONE;
+
+	spin_lock_bh(&wx->mbx.mbx_lock);
+	wx_update_xcast_mode_vf(wx, xcast_mode);
+	wx_update_mc_addr_list_vf(wx, netdev);
+	wx_write_uc_addr_list_vf(netdev);
+	spin_unlock_bh(&wx->mbx.mbx_lock);
+}
+EXPORT_SYMBOL(wx_set_rx_mode_vf);
+
+/**
+ * wx_configure_rx_vf - Configure Receive Unit after Reset
+ * @wx: board private structure
+ *
+ * Configure the Rx unit of the MAC after a reset.
+ **/
+static void wx_configure_rx_vf(struct wx *wx)
+{
+	struct net_device *netdev = wx->netdev;
+	int i, ret;
+
+	wx_setup_psrtype_vf(wx);
+	wx_setup_vfmrqc_vf(wx);
+
+	spin_lock_bh(&wx->mbx.mbx_lock);
+	ret = wx_rlpml_set_vf(wx,
+			      netdev->mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN);
+	spin_unlock_bh(&wx->mbx.mbx_lock);
+	if (ret)
+		wx_dbg(wx, "Failed to set MTU at %d\n", netdev->mtu);
+
+	/* Setup the HW Rx Head and Tail Descriptor Pointers and
+	 * the Base and Length of the Rx Descriptor Ring
+	 */
+	for (i = 0; i < wx->num_rx_queues; i++) {
+		struct wx_ring *rx_ring = wx->rx_ring[i];
+#ifdef HAVE_SWIOTLB_SKIP_CPU_SYNC
+		wx_set_rx_buffer_len_vf(wx, rx_ring);
+#endif
+		wx_configure_rx_ring_vf(wx, rx_ring);
+	}
+}
+
+void wx_configure_vf(struct wx *wx)
+{
+	wx_set_rx_mode_vf(wx->netdev);
+	wx_configure_tx_vf(wx);
+	wx_configure_rx_vf(wx);
+}
+EXPORT_SYMBOL(wx_configure_vf);
+
+int wx_set_mac_vf(struct net_device *netdev, void *p)
+{
+	struct wx *wx = netdev_priv(netdev);
+	struct sockaddr *addr = p;
+	int ret;
+
+	ret = eth_prepare_mac_addr_change(netdev, addr);
+	if (ret)
+		return ret;
+
+	spin_lock_bh(&wx->mbx.mbx_lock);
+	ret = wx_set_rar_vf(wx, 1, (u8 *)addr->sa_data, 1);
+	spin_unlock_bh(&wx->mbx.mbx_lock);
+
+	if (ret)
+		return -EPERM;
+
+	memcpy(wx->mac.addr, addr->sa_data, netdev->addr_len);
+	memcpy(wx->mac.perm_addr, addr->sa_data, netdev->addr_len);
+	eth_hw_addr_set(netdev, addr->sa_data);
+
+	return 0;
+}
+EXPORT_SYMBOL(wx_set_mac_vf);
+
+void wxvf_watchdog_update_link(struct wx *wx)
+{
+	int err;
+
+	if (!test_bit(WX_FLAG_NEED_UPDATE_LINK, wx->flags))
+		return;
+
+	spin_lock_bh(&wx->mbx.mbx_lock);
+	err = wx_check_mac_link_vf(wx);
+	spin_unlock_bh(&wx->mbx.mbx_lock);
+	if (err) {
+		wx->link = false;
+		set_bit(WX_FLAG_NEED_DO_RESET, wx->flags);
+	}
+	clear_bit(WX_FLAG_NEED_UPDATE_LINK, wx->flags);
+}
+EXPORT_SYMBOL(wxvf_watchdog_update_link);
+
+static void wxvf_irq_enable(struct wx *wx)
+{
+	wr32(wx, WX_VXIMC, wx->eims_enable_mask);
+}
+
+static void wxvf_up_complete(struct wx *wx)
+{
+	/* Always set the carrier off */
+	netif_carrier_off(wx->netdev);
+	mod_timer(&wx->service_timer, jiffies + HZ);
+	set_bit(WX_FLAG_NEED_UPDATE_LINK, wx->flags);
+
+	wx_configure_msix_vf(wx);
+	smp_mb__before_atomic();
+	clear_bit(WX_STATE_DOWN, wx->state);
+	wx_napi_enable_all(wx);
+
+	/* clear any pending interrupts, may auto mask */
+	wr32(wx, WX_VXICR, U32_MAX);
+	wxvf_irq_enable(wx);
+	/* enable transmits */
+	netif_tx_start_all_queues(wx->netdev);
+}
+
+int wxvf_open(struct net_device *netdev)
+{
+	struct wx *wx = netdev_priv(netdev);
+	int err;
+
+	err = wx_setup_resources(wx);
+	if (err)
+		goto err_reset;
+	wx_configure_vf(wx);
+
+	err = wx_request_msix_irqs_vf(wx);
+	if (err)
+		goto err_free_resources;
+
+	/* Notify the stack of the actual queue counts. */
+	err = netif_set_real_num_tx_queues(netdev, wx->num_tx_queues);
+	if (err)
+		goto err_free_irq;
+
+	err = netif_set_real_num_rx_queues(netdev, wx->num_rx_queues);
+	if (err)
+		goto err_free_irq;
+
+	wxvf_up_complete(wx);
+
+	return 0;
+err_free_irq:
+	wx_free_irq(wx);
+err_free_resources:
+	wx_free_resources(wx);
+err_reset:
+	wx_reset_vf(wx);
+	return err;
+}
+EXPORT_SYMBOL(wxvf_open);
+
+static void wxvf_down(struct wx *wx)
+{
+	struct net_device *netdev = wx->netdev;
+
+	if (test_and_set_bit(WX_STATE_DOWN, wx->state))
+		return;
+
+	timer_delete_sync(&wx->service_timer);
+	netif_tx_stop_all_queues(netdev);
+	netif_tx_disable(netdev);
+	netif_carrier_off(netdev);
+	wx_napi_disable_all(wx);
+	wx_reset_vf(wx);
+
+	wx_clean_all_tx_rings(wx);
+	wx_clean_all_rx_rings(wx);
+}
+
+static void wxvf_reinit_locked(struct wx *wx)
+{
+	mutex_lock(&wx->reset_lock);
+	set_bit(WX_STATE_RESETTING, wx->state);
+
+	wxvf_down(wx);
+	wx_free_irq(wx);
+	wx_configure_vf(wx);
+	wx_request_msix_irqs_vf(wx);
+	wxvf_up_complete(wx);
+	clear_bit(WX_STATE_RESETTING, wx->state);
+	mutex_unlock(&wx->reset_lock);
+}
+
+static void wxvf_reset_subtask(struct wx *wx)
+{
+	if (!test_bit(WX_FLAG_NEED_DO_RESET, wx->flags))
+		return;
+	clear_bit(WX_FLAG_NEED_DO_RESET, wx->flags);
+
+	rtnl_lock();
+	if (test_bit(WX_STATE_RESETTING, wx->state) ||
+	    test_bit(WX_STATE_DOWN, wx->state)) {
+		rtnl_unlock();
+		return;
+	}
+	wxvf_reinit_locked(wx);
+	rtnl_unlock();
+}
+
+int wxvf_close(struct net_device *netdev)
+{
+	struct wx *wx = netdev_priv(netdev);
+
+	wxvf_down(wx);
+	wx_free_irq(wx);
+	wx_free_resources(wx);
+
+	return 0;
+}
+EXPORT_SYMBOL(wxvf_close);
+
+static void wxvf_link_config_subtask(struct wx *wx)
+{
+	struct net_device *netdev = wx->netdev;
+
+	wxvf_watchdog_update_link(wx);
+	if (wx->link) {
+		if (netif_carrier_ok(netdev))
+			return;
+		netif_carrier_on(netdev);
+		netdev_info(netdev, "Link is Up - %s\n",
+			    phy_speed_to_str(wx->speed));
+	} else {
+		if (!netif_carrier_ok(netdev))
+			return;
+		netif_carrier_off(netdev);
+		netdev_info(netdev, "Link is Down\n");
+	}
+}
+
+static void wxvf_service_task(struct work_struct *work)
+{
+	struct wx *wx = container_of(work, struct wx, service_task);
+
+	wxvf_link_config_subtask(wx);
+	wxvf_reset_subtask(wx);
+	wx_service_event_complete(wx);
+}
+
+void wxvf_init_service(struct wx *wx)
+{
+	timer_setup(&wx->service_timer, wx_service_timer, 0);
+	INIT_WORK(&wx->service_task, wxvf_service_task);
+	clear_bit(WX_STATE_SERVICE_SCHED, wx->state);
+}
+EXPORT_SYMBOL(wxvf_init_service);

linux-7.2.3/drivers/net/ethernet/wangxun/libwx/wx_vf_common.h

@@ -0,0 +1,22 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2015 - 2025 Beijing WangXun Technology Co., Ltd. */
+
+#ifndef _WX_VF_COMMON_H_
+#define _WX_VF_COMMON_H_
+
+int wxvf_suspend(struct device *dev_d);
+void wxvf_shutdown(struct pci_dev *pdev);
+int wxvf_resume(struct device *dev_d);
+void wxvf_remove(struct pci_dev *pdev);
+int wx_request_msix_irqs_vf(struct wx *wx);
+void wx_negotiate_api_vf(struct wx *wx);
+void wx_reset_vf(struct wx *wx);
+void wx_set_rx_mode_vf(struct net_device *netdev);
+void wx_configure_vf(struct wx *wx);
+int wx_set_mac_vf(struct net_device *netdev, void *p);
+void wxvf_watchdog_update_link(struct wx *wx);
+int wxvf_open(struct net_device *netdev);
+int wxvf_close(struct net_device *netdev);
+void wxvf_init_service(struct wx *wx);
+
+#endif /* _WX_VF_COMMON_H_ */

linux-7.2.3/drivers/net/ethernet/wangxun/libwx/wx_vf_lib.c

@@ -0,0 +1,292 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2015 - 2025 Beijing WangXun Technology Co., Ltd. */
+
+#include <linux/etherdevice.h>
+#include <linux/pci.h>
+
+#include "wx_type.h"
+#include "wx_hw.h"
+#include "wx_lib.h"
+#include "wx_vf.h"
+#include "wx_vf_lib.h"
+
+void wx_write_eitr_vf(struct wx_q_vector *q_vector)
+{
+	struct wx *wx = q_vector->wx;
+	int v_idx = q_vector->v_idx;
+	u32 itr_reg;
+
+	itr_reg = q_vector->itr & WX_VXITR_MASK;
+
+	/* set the WDIS bit to not clear the timer bits and cause an
+	 * immediate assertion of the interrupt
+	 */
+	itr_reg |= WX_VXITR_CNT_WDIS;
+
+	wr32(wx, WX_VXITR(v_idx), itr_reg);
+}
+
+static void wx_set_ivar_vf(struct wx *wx, s8 direction, u8 queue,
+			   u8 msix_vector)
+{
+	u32 ivar, index;
+
+	if (direction == -1) {
+		/* other causes */
+		msix_vector |= WX_PX_IVAR_ALLOC_VAL;
+		ivar = rd32(wx, WX_VXIVAR_MISC);
+		ivar &= ~0xFF;
+		ivar |= msix_vector;
+		wr32(wx, WX_VXIVAR_MISC, ivar);
+	} else {
+		/* tx or rx causes */
+		msix_vector |= WX_PX_IVAR_ALLOC_VAL;
+		index = ((16 * (queue & 1)) + (8 * direction));
+		ivar = rd32(wx, WX_VXIVAR(queue >> 1));
+		ivar &= ~(0xFF << index);
+		ivar |= (msix_vector << index);
+		wr32(wx, WX_VXIVAR(queue >> 1), ivar);
+	}
+}
+
+void wx_configure_msix_vf(struct wx *wx)
+{
+	int v_idx;
+
+	wx->eims_enable_mask = 0;
+	for (v_idx = 0; v_idx < wx->num_q_vectors; v_idx++) {
+		struct wx_q_vector *q_vector = wx->q_vector[v_idx];
+		struct wx_ring *ring;
+
+		wx_for_each_ring(ring, q_vector->rx)
+			wx_set_ivar_vf(wx, 0, ring->reg_idx, v_idx);
+
+		wx_for_each_ring(ring, q_vector->tx)
+			wx_set_ivar_vf(wx, 1, ring->reg_idx, v_idx);
+
+		/* add q_vector eims value to global eims_enable_mask */
+		wx->eims_enable_mask |= BIT(v_idx);
+		wx_write_eitr_vf(q_vector);
+	}
+
+	wx_set_ivar_vf(wx, -1, 1, v_idx);
+
+	/* setup eims_other and add value to global eims_enable_mask */
+	wx->eims_other = BIT(v_idx);
+	wx->eims_enable_mask |= wx->eims_other;
+}
+
+int wx_write_uc_addr_list_vf(struct net_device *netdev)
+{
+	struct wx *wx = netdev_priv(netdev);
+	int count = 0;
+
+	if (!netdev_uc_empty(netdev)) {
+		struct netdev_hw_addr *ha;
+
+		netdev_for_each_uc_addr(ha, netdev)
+			wx_set_uc_addr_vf(wx, ++count, ha->addr);
+	} else {
+		/*
+		 * If the list is empty then send message to PF driver to
+		 * clear all macvlans on this VF.
+		 */
+		wx_set_uc_addr_vf(wx, 0, NULL);
+	}
+
+	return count;
+}
+
+/**
+ * wx_configure_tx_ring_vf - Configure Tx ring after Reset
+ * @wx: board private structure
+ * @ring: structure containing ring specific data
+ *
+ * Configure the Tx descriptor ring after a reset.
+ **/
+static void wx_configure_tx_ring_vf(struct wx *wx, struct wx_ring *ring)
+{
+	u8 reg_idx = ring->reg_idx;
+	u64 tdba = ring->dma;
+	u32 txdctl = 0;
+	int ret;
+
+	/* disable queue to avoid issues while updating state */
+	wr32(wx, WX_VXTXDCTL(reg_idx), WX_VXTXDCTL_FLUSH);
+	wr32(wx, WX_VXTDBAL(reg_idx), tdba & DMA_BIT_MASK(32));
+	wr32(wx, WX_VXTDBAH(reg_idx), tdba >> 32);
+
+	/* enable relaxed ordering */
+	pcie_capability_clear_and_set_word(wx->pdev, PCI_EXP_DEVCTL,
+					   0, PCI_EXP_DEVCTL_RELAX_EN);
+
+	/* reset head and tail pointers */
+	wr32(wx, WX_VXTDH(reg_idx), 0);
+	wr32(wx, WX_VXTDT(reg_idx), 0);
+	ring->tail = wx->hw_addr + WX_VXTDT(reg_idx);
+
+	/* reset ntu and ntc to place SW in sync with hardwdare */
+	ring->next_to_clean = 0;
+	ring->next_to_use = 0;
+
+	txdctl |= WX_VXTXDCTL_BUFLEN(wx_buf_len(ring->count));
+	txdctl |= WX_VXTXDCTL_ENABLE;
+
+	if (ring->headwb_mem) {
+		wr32(wx, WX_VXTXD_HEAD_ADDRL(reg_idx),
+		     ring->headwb_dma & DMA_BIT_MASK(32));
+		wr32(wx, WX_VXTXD_HEAD_ADDRH(reg_idx),
+		     upper_32_bits(ring->headwb_dma));
+
+		txdctl |= WX_VXTXDCTL_HEAD_WB;
+	}
+
+	/* reinitialize tx_buffer_info */
+	memset(ring->tx_buffer_info, 0,
+	       sizeof(struct wx_tx_buffer) * ring->count);
+
+	wr32(wx, WX_VXTXDCTL(reg_idx), txdctl);
+	/* poll to verify queue is enabled */
+	ret = read_poll_timeout(rd32, txdctl, txdctl & WX_VXTXDCTL_ENABLE,
+				1000, 10000, true, wx, WX_VXTXDCTL(reg_idx));
+	if (ret == -ETIMEDOUT)
+		wx_err(wx, "Could not enable Tx Queue %d\n", reg_idx);
+}
+
+/**
+ * wx_configure_tx_vf - Configure Transmit Unit after Reset
+ * @wx: board private structure
+ *
+ * Configure the Tx unit of the MAC after a reset.
+ **/
+void wx_configure_tx_vf(struct wx *wx)
+{
+	u32 i;
+
+	/* Setup the HW Tx Head and Tail descriptor pointers */
+	for (i = 0; i < wx->num_tx_queues; i++)
+		wx_configure_tx_ring_vf(wx, wx->tx_ring[i]);
+}
+
+static void wx_configure_srrctl_vf(struct wx *wx, struct wx_ring *ring,
+				   int index)
+{
+	u32 srrctl;
+
+	srrctl = rd32m(wx, WX_VXRXDCTL(index),
+		       (u32)~(WX_VXRXDCTL_HDRSZ_MASK | WX_VXRXDCTL_BUFSZ_MASK));
+	srrctl |= WX_VXRXDCTL_DROP;
+	srrctl |= WX_VXRXDCTL_HDRSZ(wx_hdr_sz(WX_RX_HDR_SIZE));
+	srrctl |= WX_VXRXDCTL_BUFSZ(wx_buf_sz(WX_RX_BUF_SIZE));
+
+	wr32(wx, WX_VXRXDCTL(index), srrctl);
+}
+
+void wx_setup_psrtype_vf(struct wx *wx)
+{
+	/* PSRTYPE must be initialized */
+	u32 psrtype = WX_VXMRQC_PSR_L2HDR |
+		      WX_VXMRQC_PSR_L3HDR |
+		      WX_VXMRQC_PSR_L4HDR |
+		      WX_VXMRQC_PSR_TUNHDR |
+		      WX_VXMRQC_PSR_TUNMAC;
+
+	wr32m(wx, WX_VXMRQC, WX_VXMRQC_PSR_MASK, WX_VXMRQC_PSR(psrtype));
+}
+
+void wx_setup_vfmrqc_vf(struct wx *wx)
+{
+	u16 rss_i = wx->num_rx_queues;
+	u32 vfmrqc = 0, vfreta = 0;
+	u8 i, j;
+
+	/* Fill out hash function seeds */
+	netdev_rss_key_fill(wx->rss_key, WX_RSS_KEY_SIZE);
+	for (i = 0; i < WX_RSS_KEY_SIZE / 4; i++)
+		wr32(wx, WX_VXRSSRK(i), wx->rss_key[i]);
+
+	for (i = 0, j = 0; i < WX_MAX_RETA_ENTRIES; i++, j++) {
+		if (j == rss_i)
+			j = 0;
+
+		wx->rss_indir_tbl[i] = j;
+
+		vfreta |= j << (i & 0x3) * 8;
+		if ((i & 3) == 3) {
+			wr32(wx, WX_VXRETA(i >> 2), vfreta);
+			vfreta = 0;
+		}
+	}
+
+	/* Perform hash on these packet types */
+	vfmrqc |= WX_VXMRQC_RSS_ALG_IPV4 |
+		  WX_VXMRQC_RSS_ALG_IPV4_TCP |
+		  WX_VXMRQC_RSS_ALG_IPV6 |
+		  WX_VXMRQC_RSS_ALG_IPV6_TCP;
+
+	vfmrqc |= WX_VXMRQC_RSS_EN;
+
+	if (wx->num_rx_queues > 3)
+		vfmrqc |= WX_VXMRQC_RSS_HASH(2);
+	else if (wx->num_rx_queues > 1)
+		vfmrqc |= WX_VXMRQC_RSS_HASH(1);
+	wr32m(wx, WX_VXMRQC, WX_VXMRQC_RSS_MASK, WX_VXMRQC_RSS(vfmrqc));
+}
+
+void wx_configure_rx_ring_vf(struct wx *wx, struct wx_ring *ring)
+{
+	u8 reg_idx = ring->reg_idx;
+	union wx_rx_desc *rx_desc;
+	u64 rdba = ring->dma;
+	u32 rxdctl;
+
+	/* disable queue to avoid issues while updating state */
+	rxdctl = rd32(wx, WX_VXRXDCTL(reg_idx));
+	wx_disable_rx_queue(wx, ring);
+
+	wr32(wx, WX_VXRDBAL(reg_idx), rdba & DMA_BIT_MASK(32));
+	wr32(wx, WX_VXRDBAH(reg_idx), rdba >> 32);
+
+	/* enable relaxed ordering */
+	pcie_capability_clear_and_set_word(wx->pdev, PCI_EXP_DEVCTL,
+					   0, PCI_EXP_DEVCTL_RELAX_EN);
+
+	/* reset head and tail pointers */
+	wr32(wx, WX_VXRDH(reg_idx), 0);
+	wr32(wx, WX_VXRDT(reg_idx), 0);
+	ring->tail = wx->hw_addr + WX_VXRDT(reg_idx);
+
+	/* initialize rx_buffer_info */
+	memset(ring->rx_buffer_info, 0,
+	       sizeof(struct wx_rx_buffer) * ring->count);
+
+	/* initialize Rx descriptor 0 */
+	rx_desc = WX_RX_DESC(ring, 0);
+	rx_desc->wb.upper.length = 0;
+
+	/* reset ntu and ntc to place SW in sync with hardwdare */
+	ring->next_to_clean = 0;
+	ring->next_to_use = 0;
+	ring->next_to_alloc = 0;
+
+	wx_configure_srrctl_vf(wx, ring, reg_idx);
+
+	/* allow any size packet since we can handle overflow */
+	rxdctl &= ~WX_VXRXDCTL_BUFLEN_MASK;
+	rxdctl |= WX_VXRXDCTL_BUFLEN(wx_buf_len(ring->count));
+	rxdctl |= WX_VXRXDCTL_ENABLE | WX_VXRXDCTL_VLAN;
+
+	/* enable RSC */
+	rxdctl &= ~WX_VXRXDCTL_RSCMAX_MASK;
+	rxdctl |= WX_VXRXDCTL_RSCMAX(0);
+	rxdctl |= WX_VXRXDCTL_RSCEN;
+
+	if (test_bit(WX_FLAG_RX_MERGE_ENABLED, wx->flags))
+		rxdctl |= WX_VXRXDCTL_DESC_MERGE;
+
+	wr32(wx, WX_VXRXDCTL(reg_idx), rxdctl);
+
+	/* pf/vf reuse */
+	wx_enable_rx_queue(wx, ring);
+	wx_alloc_rx_buffers(ring, wx_desc_unused(ring));
+}

linux-7.2.3/drivers/net/ethernet/wangxun/libwx/wx_vf_lib.h

@@ -0,0 +1,15 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2015 - 2025 Beijing WangXun Technology Co., Ltd. */
+
+#ifndef _WX_VF_LIB_H_
+#define _WX_VF_LIB_H_
+
+void wx_write_eitr_vf(struct wx_q_vector *q_vector);
+void wx_configure_msix_vf(struct wx *wx);
+int wx_write_uc_addr_list_vf(struct net_device *netdev);
+void wx_setup_psrtype_vf(struct wx *wx);
+void wx_setup_vfmrqc_vf(struct wx *wx);
+void wx_configure_tx_vf(struct wx *wx);
+void wx_configure_rx_ring_vf(struct wx *wx, struct wx_ring *ring);
+
+#endif /* _WX_VF_LIB_H_ */

linux-7.2.3/drivers/net/ethernet/wangxun/ngbe/Makefile

@@ -0,0 +1,9 @@
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (c) 2019 - 2022 Beijing WangXun Technology Co., Ltd.
+#
+# Makefile for the Wangxun(R) GbE PCI Express ethernet driver
+#
+
+obj-$(CONFIG_NGBE) += ngbe.o
+
+ngbe-objs := ngbe_main.o ngbe_hw.o ngbe_mdio.o ngbe_ethtool.o

linux-7.2.3/drivers/net/ethernet/wangxun/ngbe/ngbe_ethtool.c

@@ -0,0 +1,110 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2015 - 2023 Beijing WangXun Technology Co., Ltd. */
+
+#include <linux/pci.h>
+#include <linux/phy.h>
+#include <linux/netdevice.h>
+
+#include "../libwx/wx_ethtool.h"
+#include "../libwx/wx_type.h"
+#include "../libwx/wx_lib.h"
+#include "../libwx/wx_hw.h"
+#include "ngbe_ethtool.h"
+#include "ngbe_type.h"
+
+static int ngbe_set_ringparam(struct net_device *netdev,
+			      struct ethtool_ringparam *ring,
+			      struct kernel_ethtool_ringparam *kernel_ring,
+			      struct netlink_ext_ack *extack)
+{
+	struct wx *wx = netdev_priv(netdev);
+	u32 new_rx_count, new_tx_count;
+	struct wx_ring *temp_ring;
+	int i, err = 0;
+
+	new_tx_count = clamp_t(u32, ring->tx_pending, WX_MIN_TXD, WX_MAX_TXD);
+	new_tx_count = ALIGN(new_tx_count, WX_REQ_TX_DESCRIPTOR_MULTIPLE);
+
+	new_rx_count = clamp_t(u32, ring->rx_pending, WX_MIN_RXD, WX_MAX_RXD);
+	new_rx_count = ALIGN(new_rx_count, WX_REQ_RX_DESCRIPTOR_MULTIPLE);
+
+	if (new_tx_count == wx->tx_ring_count &&
+	    new_rx_count == wx->rx_ring_count)
+		return 0;
+
+	mutex_lock(&wx->reset_lock);
+	set_bit(WX_STATE_RESETTING, wx->state);
+
+	if (!netif_running(wx->netdev)) {
+		for (i = 0; i < wx->num_tx_queues; i++)
+			wx->tx_ring[i]->count = new_tx_count;
+		for (i = 0; i < wx->num_rx_queues; i++)
+			wx->rx_ring[i]->count = new_rx_count;
+		wx->tx_ring_count = new_tx_count;
+		wx->rx_ring_count = new_rx_count;
+
+		goto clear_reset;
+	}
+
+	/* allocate temporary buffer to store rings in */
+	i = max_t(int, wx->num_tx_queues, wx->num_rx_queues);
+	temp_ring = kvmalloc_objs(struct wx_ring, i);
+	if (!temp_ring) {
+		err = -ENOMEM;
+		goto clear_reset;
+	}
+
+	ngbe_down(wx);
+
+	wx_set_ring(wx, new_tx_count, new_rx_count, temp_ring);
+	kvfree(temp_ring);
+
+	wx_configure(wx);
+	ngbe_up(wx);
+
+clear_reset:
+	clear_bit(WX_STATE_RESETTING, wx->state);
+	mutex_unlock(&wx->reset_lock);
+	return err;
+}
+
+static const struct ethtool_ops ngbe_ethtool_ops = {
+	.supported_coalesce_params = ETHTOOL_COALESCE_USECS |
+				     ETHTOOL_COALESCE_TX_MAX_FRAMES_IRQ |
+				     ETHTOOL_COALESCE_USE_ADAPTIVE,
+	.get_drvinfo		= wx_get_drvinfo,
+	.get_link		= ethtool_op_get_link,
+	.get_link_ksettings	= wx_get_link_ksettings,
+	.set_link_ksettings	= wx_set_link_ksettings,
+	.nway_reset		= wx_nway_reset,
+	.get_wol		= wx_get_wol,
+	.set_wol		= wx_set_wol,
+	.get_sset_count		= wx_get_sset_count,
+	.get_strings		= wx_get_strings,
+	.get_ethtool_stats	= wx_get_ethtool_stats,
+	.get_eth_mac_stats	= wx_get_mac_stats,
+	.get_pause_stats	= wx_get_pause_stats,
+	.get_pauseparam		= wx_get_pauseparam,
+	.set_pauseparam		= wx_set_pauseparam,
+	.get_ringparam		= wx_get_ringparam,
+	.set_ringparam		= ngbe_set_ringparam,
+	.get_coalesce		= wx_get_coalesce,
+	.set_coalesce		= wx_set_coalesce,
+	.get_channels		= wx_get_channels,
+	.set_channels		= wx_set_channels,
+	.get_rxfh_fields	= wx_get_rxfh_fields,
+	.set_rxfh_fields	= wx_set_rxfh_fields,
+	.get_rxfh_indir_size	= wx_rss_indir_size,
+	.get_rxfh_key_size	= wx_get_rxfh_key_size,
+	.get_rxfh		= wx_get_rxfh,
+	.set_rxfh		= wx_set_rxfh,
+	.get_msglevel		= wx_get_msglevel,
+	.set_msglevel		= wx_set_msglevel,
+	.get_ts_info		= wx_get_ts_info,
+	.get_ts_stats		= wx_get_ptp_stats,
+};
+
+void ngbe_set_ethtool_ops(struct net_device *netdev)
+{
+	netdev->ethtool_ops = &ngbe_ethtool_ops;
+}

linux-7.2.3/drivers/net/ethernet/wangxun/ngbe/ngbe_ethtool.h

@@ -0,0 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2015 - 2023 Beijing WangXun Technology Co., Ltd. */
+
+#ifndef _NGBE_ETHTOOL_H_
+#define _NGBE_ETHTOOL_H_
+
+void ngbe_set_ethtool_ops(struct net_device *netdev);
+
+#endif /* _NGBE_ETHTOOL_H_ */

linux-7.2.3/drivers/net/ethernet/wangxun/ngbe/ngbe_hw.c

@@ -0,0 +1,99 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2019 - 2022 Beijing WangXun Technology Co., Ltd. */
+
+#include <linux/etherdevice.h>
+#include <linux/iopoll.h>
+#include <linux/pci.h>
+
+#include "../libwx/wx_type.h"
+#include "../libwx/wx_hw.h"
+#include "ngbe_type.h"
+#include "ngbe_hw.h"
+
+int ngbe_eeprom_chksum_hostif(struct wx *wx)
+{
+	struct wx_hic_read_shadow_ram buffer;
+	int status;
+	int tmp;
+
+	buffer.hdr.req.cmd = NGBE_FW_EEPROM_CHECKSUM_CMD;
+	buffer.hdr.req.buf_lenh = 0;
+	buffer.hdr.req.buf_lenl = 0;
+	buffer.hdr.req.checksum = NGBE_FW_CMD_DEFAULT_CHECKSUM;
+	/* convert offset from words to bytes */
+	buffer.address = 0;
+	/* one word */
+	buffer.length = 0;
+
+	status = wx_host_interface_command(wx, (u32 *)&buffer, sizeof(buffer),
+					   WX_HI_COMMAND_TIMEOUT, false);
+
+	if (status < 0)
+		return status;
+	tmp = rd32a(wx, WX_MNG_MBOX, 1);
+	if (tmp == NGBE_FW_CMD_ST_PASS)
+		return 0;
+	return -EIO;
+}
+
+static int ngbe_reset_misc(struct wx *wx)
+{
+	wx_reset_misc(wx);
+	if (wx->gpio_ctrl) {
+		/* gpio0 is used to power on/off control*/
+		wr32(wx, NGBE_GPIO_DDR, 0x1);
+		ngbe_sfp_modules_txrx_powerctl(wx, false);
+	}
+	return 0;
+}
+
+void ngbe_sfp_modules_txrx_powerctl(struct wx *wx, bool swi)
+{
+	/* gpio0 is used to power on control . 0 is on */
+	wr32(wx, NGBE_GPIO_DR, swi ? 0 : NGBE_GPIO_DR_0);
+}
+
+/**
+ *  ngbe_reset_hw - Perform hardware reset
+ *  @wx: pointer to hardware structure
+ *
+ *  Resets the hardware by resetting the transmit and receive units, masks
+ *  and clears all interrupts, perform a PHY reset, and perform a link (MAC)
+ *  reset.
+ **/
+int ngbe_reset_hw(struct wx *wx)
+{
+	u32 val = 0;
+	int ret = 0;
+
+	/* Call wx stop to disable tx/rx and clear interrupts */
+	ret = wx_stop_adapter(wx);
+	if (ret != 0)
+		return ret;
+
+	if (wx->mac_type != em_mac_type_mdi) {
+		val = WX_MIS_RST_LAN_RST(wx->bus.func);
+		wr32(wx, WX_MIS_RST, val | rd32(wx, WX_MIS_RST));
+
+		ret = read_poll_timeout(rd32, val,
+					!(val & (BIT(9) << wx->bus.func)), 1000,
+					100000, false, wx, 0x10028);
+		if (ret) {
+			wx_err(wx, "Lan reset exceed s maximum times.\n");
+			return ret;
+		}
+	}
+	ngbe_reset_misc(wx);
+
+	wx_clear_hw_cntrs(wx);
+
+	/* Store the permanent mac address */
+	wx_get_mac_addr(wx, wx->mac.perm_addr);
+
+	/* reset num_rar_entries to 128 */
+	wx->mac.num_rar_entries = NGBE_RAR_ENTRIES;
+	wx_init_rx_addrs(wx);
+	pci_set_master(wx->pdev);
+
+	return 0;
+}

linux-7.2.3/drivers/net/ethernet/wangxun/ngbe/ngbe_hw.h

@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * WangXun Gigabit PCI Express Linux driver
+ * Copyright (c) 2019 - 2022 Beijing WangXun Technology Co., Ltd.
+ */
+
+#ifndef _NGBE_HW_H_
+#define _NGBE_HW_H_
+
+int ngbe_eeprom_chksum_hostif(struct wx *wx);
+void ngbe_sfp_modules_txrx_powerctl(struct wx *wx, bool swi);
+int ngbe_reset_hw(struct wx *wx);
+#endif /* _NGBE_HW_H_ */

linux-7.2.3/drivers/net/ethernet/wangxun/ngbe/ngbe_main.c

@@ -0,0 +1,926 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2019 - 2022 Beijing WangXun Technology Co., Ltd. */
+
+#include <linux/types.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/netdevice.h>
+#include <linux/string.h>
+#include <linux/etherdevice.h>
+#include <net/ip.h>
+#include <linux/phy.h>
+#include <linux/if_vlan.h>
+
+#include "../libwx/wx_type.h"
+#include "../libwx/wx_hw.h"
+#include "../libwx/wx_lib.h"
+#include "../libwx/wx_ptp.h"
+#include "../libwx/wx_mbx.h"
+#include "../libwx/wx_sriov.h"
+#include "ngbe_type.h"
+#include "ngbe_mdio.h"
+#include "ngbe_hw.h"
+#include "ngbe_ethtool.h"
+
+char ngbe_driver_name[] = "ngbe";
+
+/* ngbe_pci_tbl - PCI Device ID Table
+ *
+ * { Vendor ID, Device ID, SubVendor ID, SubDevice ID,
+ *   Class, Class Mask, private data (not used) }
+ */
+static const struct pci_device_id ngbe_pci_tbl[] = {
+	{ PCI_VDEVICE(WANGXUN, NGBE_DEV_ID_EM_WX1860AL_W) },
+	{ PCI_VDEVICE(WANGXUN, NGBE_DEV_ID_EM_WX1860A2) },
+	{ PCI_VDEVICE(WANGXUN, NGBE_DEV_ID_EM_WX1860A2S) },
+	{ PCI_VDEVICE(WANGXUN, NGBE_DEV_ID_EM_WX1860A4) },
+	{ PCI_VDEVICE(WANGXUN, NGBE_DEV_ID_EM_WX1860A4S) },
+	{ PCI_VDEVICE(WANGXUN, NGBE_DEV_ID_EM_WX1860AL2) },
+	{ PCI_VDEVICE(WANGXUN, NGBE_DEV_ID_EM_WX1860AL2S) },
+	{ PCI_VDEVICE(WANGXUN, NGBE_DEV_ID_EM_WX1860AL4) },
+	{ PCI_VDEVICE(WANGXUN, NGBE_DEV_ID_EM_WX1860AL4S) },
+	{ PCI_VDEVICE(WANGXUN, NGBE_DEV_ID_EM_WX1860LC) },
+	{ PCI_VDEVICE(WANGXUN, NGBE_DEV_ID_EM_WX1860A1) },
+	{ PCI_VDEVICE(WANGXUN, NGBE_DEV_ID_EM_WX1860A1L) },
+	/* required last entry */
+	{ }
+};
+
+/**
+ *  ngbe_init_type_code - Initialize the shared code
+ *  @wx: pointer to hardware structure
+ **/
+static void ngbe_init_type_code(struct wx *wx)
+{
+	int wol_mask = 0, ncsi_mask = 0;
+	u16 type_mask = 0, val;
+
+	wx->mac.type = wx_mac_em;
+	type_mask = (u16)(wx->subsystem_device_id & NGBE_OEM_MASK);
+	ncsi_mask = wx->subsystem_device_id & WX_NCSI_MASK;
+	wol_mask = wx->subsystem_device_id & WX_WOL_MASK;
+
+	val = rd32(wx, WX_CFG_PORT_ST);
+	wx->mac_type = (val & BIT(7)) >> 7 ?
+		       em_mac_type_rgmii :
+		       em_mac_type_mdi;
+
+	wx->wol_hw_supported = (wol_mask == WX_WOL_SUP) ? 1 : 0;
+	wx->ncsi_enabled = (ncsi_mask == WX_NCSI_SUP ||
+			   type_mask == NGBE_SUBID_OCP_CARD) ? 1 : 0;
+
+	switch (type_mask) {
+	case NGBE_SUBID_LY_YT8521S_SFP:
+	case NGBE_SUBID_LY_M88E1512_SFP:
+	case NGBE_SUBID_YT8521S_SFP_GPIO:
+	case NGBE_SUBID_INTERNAL_YT8521S_SFP_GPIO:
+		wx->gpio_ctrl = 1;
+		break;
+	default:
+		wx->gpio_ctrl = 0;
+		break;
+	}
+}
+
+/**
+ * ngbe_sw_init - Initialize general software structures
+ * @wx: board private structure to initialize
+ **/
+static int ngbe_sw_init(struct wx *wx)
+{
+	struct pci_dev *pdev = wx->pdev;
+	u16 msix_count = 0;
+	int err = 0;
+
+	wx->mac.num_rar_entries = NGBE_RAR_ENTRIES;
+	wx->mac.max_rx_queues = NGBE_MAX_RX_QUEUES;
+	wx->mac.max_tx_queues = NGBE_MAX_TX_QUEUES;
+	wx->mac.mcft_size = NGBE_MC_TBL_SIZE;
+	wx->mac.vft_size = NGBE_SP_VFT_TBL_SIZE;
+	wx->mac.rx_pb_size = NGBE_RX_PB_SIZE;
+	wx->mac.tx_pb_size = NGBE_TDB_PB_SZ;
+
+	/* PCI config space info */
+	err = wx_sw_init(wx);
+	if (err < 0)
+		return err;
+
+	/* mac type, phy type , oem type */
+	ngbe_init_type_code(wx);
+
+	/* Set common capability flags and settings */
+	wx->max_q_vectors = NGBE_MAX_MSIX_VECTORS;
+	err = wx_get_pcie_msix_counts(wx, &msix_count, NGBE_MAX_MSIX_VECTORS);
+	if (err)
+		dev_err(&pdev->dev, "Do not support MSI-X\n");
+	wx->mac.max_msix_vectors = msix_count;
+
+	wx->ring_feature[RING_F_RSS].limit = min_t(int, NGBE_MAX_RSS_INDICES,
+						   num_online_cpus());
+	wx->rss_enabled = true;
+
+	wx->adaptive_itr = false;
+	wx->rx_itr_setting = WX_7K_ITR;
+	wx->tx_itr_setting = WX_7K_ITR;
+
+	/* set default ring sizes */
+	wx->tx_ring_count = NGBE_DEFAULT_TXD;
+	wx->rx_ring_count = NGBE_DEFAULT_RXD;
+
+	/* set default work limits */
+	wx->tx_work_limit = NGBE_DEFAULT_TX_WORK;
+	wx->rx_work_limit = NGBE_DEFAULT_RX_WORK;
+
+	wx->mbx.size = WX_VXMAILBOX_SIZE;
+	wx->setup_tc = ngbe_setup_tc;
+	set_bit(0, &wx->fwd_bitmask);
+
+	return 0;
+}
+
+/**
+ * ngbe_service_task - manages and runs subtasks
+ * @work: pointer to work_struct containing our data
+ **/
+static void ngbe_service_task(struct work_struct *work)
+{
+	struct wx *wx = container_of(work, struct wx, service_task);
+
+	wx_update_stats(wx);
+
+	wx_service_event_complete(wx);
+}
+
+static void ngbe_init_service(struct wx *wx)
+{
+	timer_setup(&wx->service_timer, wx_service_timer, 0);
+	INIT_WORK(&wx->service_task, ngbe_service_task);
+	clear_bit(WX_STATE_SERVICE_SCHED, wx->state);
+}
+
+/**
+ * ngbe_irq_enable - Enable default interrupt generation settings
+ * @wx: board private structure
+ * @queues: enable all queues interrupts
+ **/
+static void ngbe_irq_enable(struct wx *wx, bool queues)
+{
+	u32 mask;
+
+	/* enable misc interrupt */
+	mask = NGBE_PX_MISC_IEN_MASK;
+
+	wr32(wx, WX_GPIO_DDR, WX_GPIO_DDR_0);
+	wr32(wx, WX_GPIO_INTEN, WX_GPIO_INTEN_0 | WX_GPIO_INTEN_1);
+	wr32(wx, WX_GPIO_INTTYPE_LEVEL, 0x0);
+	wr32(wx, WX_GPIO_POLARITY, wx->gpio_ctrl ? 0 : 0x3);
+
+	wr32(wx, WX_PX_MISC_IEN, mask);
+
+	/* mask interrupt */
+	if (queues)
+		wx_intr_enable(wx, NGBE_INTR_ALL);
+	else if (wx->pdev->msix_enabled)
+		wx_intr_enable(wx, NGBE_INTR_MISC(wx));
+	else
+		wx_intr_enable(wx, BIT(0));
+}
+
+/**
+ * ngbe_intr - msi/legacy mode Interrupt Handler
+ * @irq: interrupt number
+ * @data: pointer to a network interface device structure
+ **/
+static irqreturn_t ngbe_intr(int __always_unused irq, void *data)
+{
+	struct wx_q_vector *q_vector;
+	struct wx *wx  = data;
+	struct pci_dev *pdev;
+	u32 eicr, eicr_misc;
+
+	q_vector = wx->q_vector[0];
+	pdev = wx->pdev;
+
+	eicr = wx_misc_isb(wx, WX_ISB_VEC0);
+	if (!eicr) {
+		/* shared interrupt alert!
+		 * the interrupt that we masked before the EICR read.
+		 */
+		if (!test_bit(WX_STATE_DOWN, wx->state))
+			ngbe_irq_enable(wx, true);
+		return IRQ_NONE;        /* Not our interrupt */
+	}
+	wx->isb_mem[WX_ISB_VEC0] = 0;
+	if (!(pdev->msi_enabled))
+		wr32(wx, WX_PX_INTA, 1);
+
+	eicr_misc = wx_misc_isb(wx, WX_ISB_MISC);
+	if (unlikely(eicr_misc & NGBE_PX_MISC_IC_TIMESYNC))
+		wx_ptp_check_pps_event(wx);
+
+	wx->isb_mem[WX_ISB_MISC] = 0;
+	/* would disable interrupts here but it is auto disabled */
+	napi_schedule_irqoff(&q_vector->napi);
+
+	if (!test_bit(WX_STATE_DOWN, wx->state))
+		ngbe_irq_enable(wx, false);
+
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t __ngbe_msix_misc(struct wx *wx, u32 eicr)
+{
+	if (eicr & NGBE_PX_MISC_IC_VF_MBOX)
+		wx_msg_task(wx);
+
+	if (unlikely(eicr & NGBE_PX_MISC_IC_TIMESYNC))
+		wx_ptp_check_pps_event(wx);
+
+	/* re-enable the original interrupt state, no lsc, no queues */
+	if (!test_bit(WX_STATE_DOWN, wx->state))
+		ngbe_irq_enable(wx, false);
+
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t ngbe_msix_misc(int __always_unused irq, void *data)
+{
+	struct wx *wx = data;
+	u32 eicr;
+
+	eicr = wx_misc_isb(wx, WX_ISB_MISC);
+
+	return __ngbe_msix_misc(wx, eicr);
+}
+
+static irqreturn_t ngbe_misc_and_queue(int __always_unused irq, void *data)
+{
+	struct wx_q_vector *q_vector;
+	struct wx *wx = data;
+	u32 eicr;
+
+	eicr = wx_misc_isb(wx, WX_ISB_MISC);
+	if (!eicr) {
+		/* queue */
+		q_vector = wx->q_vector[0];
+		napi_schedule_irqoff(&q_vector->napi);
+		if (!test_bit(WX_STATE_DOWN, wx->state))
+			ngbe_irq_enable(wx, true);
+		return IRQ_HANDLED;
+	}
+
+	return __ngbe_msix_misc(wx, eicr);
+}
+
+/**
+ * ngbe_request_msix_irqs - Initialize MSI-X interrupts
+ * @wx: board private structure
+ *
+ * ngbe_request_msix_irqs allocates MSI-X vectors and requests
+ * interrupts from the kernel.
+ **/
+static int ngbe_request_msix_irqs(struct wx *wx)
+{
+	struct net_device *netdev = wx->netdev;
+	int vector, err;
+
+	for (vector = 0; vector < wx->num_q_vectors; vector++) {
+		struct wx_q_vector *q_vector = wx->q_vector[vector];
+		struct msix_entry *entry = &wx->msix_q_entries[vector];
+
+		if (q_vector->tx.ring && q_vector->rx.ring)
+			snprintf(q_vector->name, sizeof(q_vector->name) - 1,
+				 "%s-TxRx-%d", netdev->name, entry->entry);
+		else
+			/* skip this unused q_vector */
+			continue;
+
+		err = request_irq(entry->vector, wx_msix_clean_rings, 0,
+				  q_vector->name, q_vector);
+		if (err) {
+			wx_err(wx, "request_irq failed for MSIX interrupt %s Error: %d\n",
+			       q_vector->name, err);
+			goto free_queue_irqs;
+		}
+	}
+
+	/* Due to hardware design, when num_vfs < 7, pf can use 0 for misc and 1
+	 * for queue. But when num_vfs == 7, vector[1] is assigned to vf6.
+	 * Misc and queue should reuse interrupt vector[0].
+	 */
+	if (test_bit(WX_FLAG_IRQ_VECTOR_SHARED, wx->flags))
+		err = request_irq(wx->msix_entry->vector,
+				  ngbe_misc_and_queue, 0, netdev->name, wx);
+	else
+		err = request_irq(wx->msix_entry->vector,
+				  ngbe_msix_misc, 0, netdev->name, wx);
+
+	if (err) {
+		wx_err(wx, "request_irq for msix_other failed: %d\n", err);
+		goto free_queue_irqs;
+	}
+
+	return 0;
+
+free_queue_irqs:
+	while (vector) {
+		vector--;
+		free_irq(wx->msix_q_entries[vector].vector,
+			 wx->q_vector[vector]);
+	}
+	wx_reset_interrupt_capability(wx);
+	return err;
+}
+
+/**
+ * ngbe_request_irq - initialize interrupts
+ * @wx: board private structure
+ *
+ * Attempts to configure interrupts using the best available
+ * capabilities of the hardware and kernel.
+ **/
+static int ngbe_request_irq(struct wx *wx)
+{
+	struct net_device *netdev = wx->netdev;
+	struct pci_dev *pdev = wx->pdev;
+	int err;
+
+	if (pdev->msix_enabled)
+		err = ngbe_request_msix_irqs(wx);
+	else if (pdev->msi_enabled)
+		err = request_irq(pdev->irq, ngbe_intr, 0,
+				  netdev->name, wx);
+	else
+		err = request_irq(pdev->irq, ngbe_intr, IRQF_SHARED,
+				  netdev->name, wx);
+
+	if (err)
+		wx_err(wx, "request_irq failed, Error %d\n", err);
+
+	return err;
+}
+
+static void ngbe_disable_device(struct wx *wx)
+{
+	struct net_device *netdev = wx->netdev;
+	u32 i;
+
+	if (test_and_set_bit(WX_STATE_DOWN, wx->state))
+		return;
+
+	if (wx->num_vfs) {
+		/* Clear EITR Select mapping */
+		wr32(wx, WX_PX_ITRSEL, 0);
+
+		/* Mark all the VFs as inactive */
+		for (i = 0; i < wx->num_vfs; i++)
+			wx->vfinfo[i].clear_to_send = 0;
+		wx->notify_down = true;
+		/* ping all the active vfs to let them know we are going down */
+		wx_ping_all_vfs_with_link_status(wx, false);
+		wx->notify_down = false;
+
+		/* Disable all VFTE/VFRE TX/RX */
+		wx_disable_vf_rx_tx(wx);
+	}
+
+	/* disable all enabled rx queues */
+	for (i = 0; i < wx->num_rx_queues; i++)
+		/* this call also flushes the previous write */
+		wx_disable_rx_queue(wx, wx->rx_ring[i]);
+	/* disable receives */
+	wx_disable_rx(wx);
+	wx_napi_disable_all(wx);
+	netif_tx_stop_all_queues(netdev);
+	netif_tx_disable(netdev);
+
+	timer_delete_sync(&wx->service_timer);
+	cancel_work_sync(&wx->service_task);
+
+	if (wx->gpio_ctrl)
+		ngbe_sfp_modules_txrx_powerctl(wx, false);
+	wx_irq_disable(wx);
+	/* disable transmits in the hardware now that interrupts are off */
+	for (i = 0; i < wx->num_tx_queues; i++) {
+		u8 reg_idx = wx->tx_ring[i]->reg_idx;
+
+		wr32(wx, WX_PX_TR_CFG(reg_idx), WX_PX_TR_CFG_SWFLSH);
+	}
+}
+
+static void ngbe_reset(struct wx *wx)
+{
+	wx_flush_sw_mac_table(wx);
+	wx_mac_set_default_filter(wx, wx->mac.addr);
+	if (test_bit(WX_STATE_PTP_RUNNING, wx->state))
+		wx_ptp_reset(wx);
+}
+
+void ngbe_down(struct wx *wx)
+{
+	phylink_stop(wx->phylink);
+	ngbe_disable_device(wx);
+	ngbe_reset(wx);
+	wx_clean_all_tx_rings(wx);
+	wx_clean_all_rx_rings(wx);
+}
+
+void ngbe_up(struct wx *wx)
+{
+	wx_configure_vectors(wx);
+
+	/* make sure to complete pre-operations */
+	smp_mb__before_atomic();
+	clear_bit(WX_STATE_DOWN, wx->state);
+	wx_napi_enable_all(wx);
+	/* enable transmits */
+	netif_tx_start_all_queues(wx->netdev);
+	mod_timer(&wx->service_timer, jiffies);
+
+	/* clear any pending interrupts, may auto mask */
+	rd32(wx, WX_PX_IC(0));
+	rd32(wx, WX_PX_MISC_IC);
+	ngbe_irq_enable(wx, true);
+	if (wx->gpio_ctrl)
+		ngbe_sfp_modules_txrx_powerctl(wx, true);
+
+	phylink_start(wx->phylink);
+	/* Set PF Reset Done bit so PF/VF Mail Ops can work */
+	wr32m(wx, WX_CFG_PORT_CTL,
+	      WX_CFG_PORT_CTL_PFRSTD, WX_CFG_PORT_CTL_PFRSTD);
+	if (wx->num_vfs)
+		wx_ping_all_vfs_with_link_status(wx, false);
+}
+
+/**
+ * ngbe_open - Called when a network interface is made active
+ * @netdev: network interface device structure
+ *
+ * Returns 0 on success, negative value on failure
+ *
+ * The open entry point is called when a network interface is made
+ * active by the system (IFF_UP).
+ **/
+static int ngbe_open(struct net_device *netdev)
+{
+	struct wx *wx = netdev_priv(netdev);
+	int err;
+
+	wx_control_hw(wx, true);
+
+	err = wx_setup_resources(wx);
+	if (err)
+		return err;
+
+	wx_configure(wx);
+
+	err = ngbe_request_irq(wx);
+	if (err)
+		goto err_free_resources;
+
+	err = phylink_connect_phy(wx->phylink, wx->phydev);
+	if (err)
+		goto err_free_irq;
+
+	err = netif_set_real_num_tx_queues(netdev, wx->num_tx_queues);
+	if (err)
+		goto err_dis_phy;
+
+	err = netif_set_real_num_rx_queues(netdev, wx->num_rx_queues);
+	if (err)
+		goto err_dis_phy;
+
+	wx_ptp_init(wx);
+
+	ngbe_up(wx);
+
+	return 0;
+err_dis_phy:
+	phylink_disconnect_phy(wx->phylink);
+err_free_irq:
+	wx_free_irq(wx);
+err_free_resources:
+	wx_free_isb_resources(wx);
+	wx_free_resources(wx);
+	return err;
+}
+
+/**
+ * ngbe_close - Disables a network interface
+ * @netdev: network interface device structure
+ *
+ * Returns 0, this is not allowed to fail
+ *
+ * The close entry point is called when an interface is de-activated
+ * by the OS.  The hardware is still under the drivers control, but
+ * needs to be disabled.  A global MAC reset is issued to stop the
+ * hardware, and all transmit and receive resources are freed.
+ **/
+static int ngbe_close(struct net_device *netdev)
+{
+	struct wx *wx = netdev_priv(netdev);
+
+	wx_ptp_stop(wx);
+	ngbe_down(wx);
+	wx_free_irq(wx);
+	wx_free_isb_resources(wx);
+	wx_free_resources(wx);
+	phylink_disconnect_phy(wx->phylink);
+	wx_control_hw(wx, false);
+
+	return 0;
+}
+
+static void ngbe_dev_shutdown(struct pci_dev *pdev, bool *enable_wake)
+{
+	struct wx *wx = pci_get_drvdata(pdev);
+	struct net_device *netdev;
+	u32 wufc = wx->wol;
+
+	netdev = wx->netdev;
+	rtnl_lock();
+	netif_device_detach(netdev);
+
+	if (netif_running(netdev))
+		ngbe_close(netdev);
+	wx_clear_interrupt_scheme(wx);
+	rtnl_unlock();
+
+	if (wufc) {
+		wx_set_rx_mode(netdev);
+		wx_configure_rx(wx);
+		wr32(wx, WX_PSR_WKUP_CTL, wufc);
+	} else {
+		wr32(wx, WX_PSR_WKUP_CTL, 0);
+	}
+	pci_wake_from_d3(pdev, !!wufc);
+	*enable_wake = !!wufc;
+	wx_control_hw(wx, false);
+
+	pci_disable_device(pdev);
+}
+
+static void ngbe_shutdown(struct pci_dev *pdev)
+{
+	struct wx *wx = pci_get_drvdata(pdev);
+	bool wake;
+
+	wake = !!wx->wol;
+
+	ngbe_dev_shutdown(pdev, &wake);
+
+	if (system_state == SYSTEM_POWER_OFF) {
+		pci_wake_from_d3(pdev, wake);
+		pci_set_power_state(pdev, PCI_D3hot);
+	}
+}
+
+/**
+ * ngbe_setup_tc - routine to configure net_device for multiple traffic
+ * classes.
+ *
+ * @dev: net device to configure
+ * @tc: number of traffic classes to enable
+ */
+int ngbe_setup_tc(struct net_device *dev, u8 tc)
+{
+	struct wx *wx = netdev_priv(dev);
+
+	/* Hardware has to reinitialize queues and interrupts to
+	 * match packet buffer alignment. Unfortunately, the
+	 * hardware is not flexible enough to do this dynamically.
+	 */
+	if (netif_running(dev))
+		ngbe_close(dev);
+
+	wx_clear_interrupt_scheme(wx);
+
+	if (tc)
+		netdev_set_num_tc(dev, tc);
+	else
+		netdev_reset_tc(dev);
+
+	wx_init_interrupt_scheme(wx);
+
+	if (netif_running(dev))
+		ngbe_open(dev);
+
+	return 0;
+}
+
+static const struct net_device_ops ngbe_netdev_ops = {
+	.ndo_open               = ngbe_open,
+	.ndo_stop               = ngbe_close,
+	.ndo_change_mtu         = wx_change_mtu,
+	.ndo_start_xmit         = wx_xmit_frame,
+	.ndo_set_rx_mode        = wx_set_rx_mode,
+	.ndo_set_features       = wx_set_features,
+	.ndo_fix_features       = wx_fix_features,
+	.ndo_features_check     = wx_features_check,
+	.ndo_validate_addr      = eth_validate_addr,
+	.ndo_set_mac_address    = wx_set_mac,
+	.ndo_get_stats64        = wx_get_stats64,
+	.ndo_vlan_rx_add_vid    = wx_vlan_rx_add_vid,
+	.ndo_vlan_rx_kill_vid   = wx_vlan_rx_kill_vid,
+	.ndo_hwtstamp_set       = wx_hwtstamp_set,
+	.ndo_hwtstamp_get       = wx_hwtstamp_get,
+};
+
+/**
+ * ngbe_probe - Device Initialization Routine
+ * @pdev: PCI device information struct
+ * @ent: entry in ngbe_pci_tbl
+ *
+ * Returns 0 on success, negative on failure
+ *
+ * ngbe_probe initializes an wx identified by a pci_dev structure.
+ * The OS initialization, configuring of the wx private structure,
+ * and a hardware reset occur.
+ **/
+static int ngbe_probe(struct pci_dev *pdev,
+		      const struct pci_device_id __always_unused *ent)
+{
+	struct net_device *netdev;
+	u32 e2rom_cksum_cap = 0;
+	struct wx *wx = NULL;
+	static int func_nums;
+	u16 e2rom_ver = 0;
+	u32 etrack_id = 0;
+	u32 saved_ver = 0;
+	int err;
+
+	err = pci_enable_device_mem(pdev);
+	if (err)
+		return err;
+
+	err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
+	if (err) {
+		dev_err(&pdev->dev,
+			"No usable DMA configuration, aborting\n");
+		goto err_pci_disable_dev;
+	}
+
+	err = pci_request_selected_regions(pdev,
+					   pci_select_bars(pdev, IORESOURCE_MEM),
+					   ngbe_driver_name);
+	if (err) {
+		dev_err(&pdev->dev,
+			"pci_request_selected_regions failed %d\n", err);
+		goto err_pci_disable_dev;
+	}
+
+	pci_set_master(pdev);
+
+	netdev = devm_alloc_etherdev_mqs(&pdev->dev,
+					 sizeof(struct wx),
+					 NGBE_MAX_TX_QUEUES,
+					 NGBE_MAX_RX_QUEUES);
+	if (!netdev) {
+		err = -ENOMEM;
+		goto err_pci_release_regions;
+	}
+
+	SET_NETDEV_DEV(netdev, &pdev->dev);
+
+	wx = netdev_priv(netdev);
+	wx->netdev = netdev;
+	wx->pdev = pdev;
+	wx->msg_enable = BIT(3) - 1;
+
+	wx->hw_addr = devm_ioremap(&pdev->dev,
+				   pci_resource_start(pdev, 0),
+				   pci_resource_len(pdev, 0));
+	if (!wx->hw_addr) {
+		err = -EIO;
+		goto err_pci_release_regions;
+	}
+
+	/* The emerald supports up to 8 VFs per pf, but physical
+	 * function also need one pool for basic networking.
+	 */
+	pci_sriov_set_totalvfs(pdev, NGBE_MAX_VFS_DRV_LIMIT);
+	wx->driver_name = ngbe_driver_name;
+	ngbe_set_ethtool_ops(netdev);
+	netdev->netdev_ops = &ngbe_netdev_ops;
+
+	netdev->features = NETIF_F_SG | NETIF_F_IP_CSUM |
+			   NETIF_F_TSO | NETIF_F_TSO6 |
+			   NETIF_F_RXHASH | NETIF_F_RXCSUM;
+	netdev->features |= NETIF_F_SCTP_CRC | NETIF_F_TSO_MANGLEID;
+	netdev->vlan_features |= netdev->features;
+	netdev->features |= NETIF_F_IPV6_CSUM | NETIF_F_VLAN_FEATURES;
+	/* copy netdev features into list of user selectable features */
+	netdev->hw_features |= netdev->features | NETIF_F_RXALL;
+	netdev->hw_features |= NETIF_F_NTUPLE | NETIF_F_HW_TC;
+	netdev->features |= NETIF_F_HIGHDMA;
+	netdev->hw_features |= NETIF_F_GRO;
+	netdev->features |= NETIF_F_GRO;
+
+	netdev->priv_flags |= IFF_UNICAST_FLT;
+	netdev->priv_flags |= IFF_LIVE_ADDR_CHANGE;
+
+	netdev->min_mtu = ETH_MIN_MTU;
+	netdev->max_mtu = WX_MAX_JUMBO_FRAME_SIZE -
+			  (ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN);
+
+	wx->bd_number = func_nums;
+	/* setup the private structure */
+	err = ngbe_sw_init(wx);
+	if (err)
+		goto err_pci_release_regions;
+
+	/* check if flash load is done after hw power up */
+	err = wx_check_flash_load(wx, NGBE_SPI_ILDR_STATUS_PERST);
+	if (err)
+		goto err_free_mac_table;
+	err = wx_check_flash_load(wx, NGBE_SPI_ILDR_STATUS_PWRRST);
+	if (err)
+		goto err_free_mac_table;
+
+	err = wx_mng_present(wx);
+	if (err) {
+		dev_err(&pdev->dev, "Management capability is not present\n");
+		goto err_free_mac_table;
+	}
+
+	err = ngbe_reset_hw(wx);
+	if (err) {
+		dev_err(&pdev->dev, "HW Init failed: %d\n", err);
+		goto err_free_mac_table;
+	}
+
+	if (wx->bus.func == 0) {
+		wr32(wx, NGBE_CALSUM_CAP_STATUS, 0x0);
+		wr32(wx, NGBE_EEPROM_VERSION_STORE_REG, 0x0);
+	} else {
+		e2rom_cksum_cap = rd32(wx, NGBE_CALSUM_CAP_STATUS);
+		saved_ver = rd32(wx, NGBE_EEPROM_VERSION_STORE_REG);
+	}
+
+	wx_init_eeprom_params(wx);
+	if (wx->bus.func == 0 || e2rom_cksum_cap == 0) {
+		/* make sure the EEPROM is ready */
+		err = ngbe_eeprom_chksum_hostif(wx);
+		if (err) {
+			dev_err(&pdev->dev, "The EEPROM Checksum Is Not Valid\n");
+			err = -EIO;
+			goto err_free_mac_table;
+		}
+	}
+
+	wx->wol = 0;
+	if (wx->wol_hw_supported)
+		wx->wol = WX_PSR_WKUP_CTL_MAG;
+
+	netdev->ethtool->wol_enabled = !!(wx->wol);
+	wr32(wx, WX_PSR_WKUP_CTL, wx->wol);
+	device_set_wakeup_enable(&pdev->dev, wx->wol);
+
+	/* Save off EEPROM version number and Option Rom version which
+	 * together make a unique identify for the eeprom
+	 */
+	if (saved_ver) {
+		etrack_id = saved_ver;
+	} else {
+		wx_read_ee_hostif(wx,
+				  wx->eeprom.sw_region_offset + NGBE_EEPROM_VERSION_H,
+				  &e2rom_ver);
+		etrack_id = e2rom_ver << 16;
+		wx_read_ee_hostif(wx,
+				  wx->eeprom.sw_region_offset + NGBE_EEPROM_VERSION_L,
+				  &e2rom_ver);
+		etrack_id |= e2rom_ver;
+		wr32(wx, NGBE_EEPROM_VERSION_STORE_REG, etrack_id);
+	}
+	snprintf(wx->eeprom_id, sizeof(wx->eeprom_id),
+		 "0x%08x", etrack_id);
+
+	eth_hw_addr_set(netdev, wx->mac.perm_addr);
+	wx_mac_set_default_filter(wx, wx->mac.perm_addr);
+
+	ngbe_init_service(wx);
+
+	err = wx_init_interrupt_scheme(wx);
+	if (err)
+		goto err_cancel_service;
+
+	/* phy Interface Configuration */
+	err = ngbe_mdio_init(wx);
+	if (err)
+		goto err_clear_interrupt_scheme;
+
+	err = register_netdev(netdev);
+	if (err)
+		goto err_register;
+
+	pci_set_drvdata(pdev, wx);
+
+	return 0;
+
+err_register:
+	phylink_destroy(wx->phylink);
+	wx_control_hw(wx, false);
+err_clear_interrupt_scheme:
+	wx_clear_interrupt_scheme(wx);
+err_cancel_service:
+	timer_delete_sync(&wx->service_timer);
+	cancel_work_sync(&wx->service_task);
+err_free_mac_table:
+	kfree(wx->rss_key);
+	kfree(wx->mac_table);
+err_pci_release_regions:
+	pci_release_selected_regions(pdev,
+				     pci_select_bars(pdev, IORESOURCE_MEM));
+err_pci_disable_dev:
+	pci_disable_device(pdev);
+	return err;
+}
+
+/**
+ * ngbe_remove - Device Removal Routine
+ * @pdev: PCI device information struct
+ *
+ * ngbe_remove is called by the PCI subsystem to alert the driver
+ * that it should release a PCI device.  The could be caused by a
+ * Hot-Plug event, or because the driver is going to be removed from
+ * memory.
+ **/
+static void ngbe_remove(struct pci_dev *pdev)
+{
+	struct wx *wx = pci_get_drvdata(pdev);
+	struct net_device *netdev;
+
+	netdev = wx->netdev;
+	wx_disable_sriov(wx);
+	unregister_netdev(netdev);
+
+	timer_shutdown_sync(&wx->service_timer);
+	cancel_work_sync(&wx->service_task);
+
+	phylink_destroy(wx->phylink);
+	pci_release_selected_regions(pdev,
+				     pci_select_bars(pdev, IORESOURCE_MEM));
+
+	kfree(wx->rss_key);
+	kfree(wx->mac_table);
+	wx_clear_interrupt_scheme(wx);
+
+	pci_disable_device(pdev);
+}
+
+static int ngbe_suspend(struct pci_dev *pdev, pm_message_t state)
+{
+	bool wake;
+
+	ngbe_dev_shutdown(pdev, &wake);
+	device_set_wakeup_enable(&pdev->dev, wake);
+
+	return 0;
+}
+
+static int ngbe_resume(struct pci_dev *pdev)
+{
+	struct net_device *netdev;
+	struct wx *wx;
+	u32 err;
+
+	wx = pci_get_drvdata(pdev);
+	netdev = wx->netdev;
+
+	err = pci_enable_device_mem(pdev);
+	if (err) {
+		wx_err(wx, "Cannot enable PCI device from suspend\n");
+		return err;
+	}
+	pci_set_master(pdev);
+	device_wakeup_disable(&pdev->dev);
+
+	ngbe_reset_hw(wx);
+	rtnl_lock();
+	err = wx_init_interrupt_scheme(wx);
+	if (!err && netif_running(netdev))
+		err = ngbe_open(netdev);
+	if (!err)
+		netif_device_attach(netdev);
+	rtnl_unlock();
+
+	return 0;
+}
+
+static struct pci_driver ngbe_driver = {
+	.name     = ngbe_driver_name,
+	.id_table = ngbe_pci_tbl,
+	.probe    = ngbe_probe,
+	.remove   = ngbe_remove,
+	.suspend  = ngbe_suspend,
+	.resume   = ngbe_resume,
+	.shutdown = ngbe_shutdown,
+	.sriov_configure = wx_pci_sriov_configure,
+};
+
+module_pci_driver(ngbe_driver);
+
+MODULE_DEVICE_TABLE(pci, ngbe_pci_tbl);
+MODULE_AUTHOR("Beijing WangXun Technology Co., Ltd, <software@net-swift.com>");
+MODULE_DESCRIPTION("WangXun(R) Gigabit PCI Express Network Driver");
+MODULE_LICENSE("GPL");

linux-7.2.3/drivers/net/ethernet/wangxun/ngbe/ngbe_mdio.c

@@ -0,0 +1,203 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2019 - 2022 Beijing WangXun Technology Co., Ltd. */
+
+#include <linux/ethtool.h>
+#include <linux/iopoll.h>
+#include <linux/pci.h>
+#include <linux/phy.h>
+
+#include "../libwx/wx_type.h"
+#include "../libwx/wx_ptp.h"
+#include "../libwx/wx_hw.h"
+#include "../libwx/wx_sriov.h"
+#include "ngbe_type.h"
+#include "ngbe_mdio.h"
+
+static int ngbe_phy_read_reg_internal(struct mii_bus *bus, int phy_addr, int regnum)
+{
+	struct wx *wx = bus->priv;
+
+	if (phy_addr != 0)
+		return 0xffff;
+	return (u16)rd32(wx, NGBE_PHY_CONFIG(regnum));
+}
+
+static int ngbe_phy_write_reg_internal(struct mii_bus *bus, int phy_addr, int regnum, u16 value)
+{
+	struct wx *wx = bus->priv;
+
+	if (phy_addr == 0)
+		wr32(wx, NGBE_PHY_CONFIG(regnum), value);
+	return 0;
+}
+
+static int ngbe_phy_read_reg_c22(struct mii_bus *bus, int phy_addr, int regnum)
+{
+	struct wx *wx = bus->priv;
+	u16 phy_data;
+
+	if (wx->mac_type == em_mac_type_mdi)
+		phy_data = ngbe_phy_read_reg_internal(bus, phy_addr, regnum);
+	else
+		phy_data = wx_phy_read_reg_mdi_c22(bus, phy_addr, regnum);
+
+	return phy_data;
+}
+
+static int ngbe_phy_write_reg_c22(struct mii_bus *bus, int phy_addr,
+				  int regnum, u16 value)
+{
+	struct wx *wx = bus->priv;
+	int ret;
+
+	if (wx->mac_type == em_mac_type_mdi)
+		ret = ngbe_phy_write_reg_internal(bus, phy_addr, regnum, value);
+	else
+		ret = wx_phy_write_reg_mdi_c22(bus, phy_addr, regnum, value);
+
+	return ret;
+}
+
+static void ngbe_mac_config(struct phylink_config *config, unsigned int mode,
+			    const struct phylink_link_state *state)
+{
+}
+
+static void ngbe_mac_link_down(struct phylink_config *config,
+			       unsigned int mode, phy_interface_t interface)
+{
+	struct wx *wx = phylink_to_wx(config);
+
+	wx->speed = SPEED_UNKNOWN;
+	if (test_bit(WX_STATE_PTP_RUNNING, wx->state))
+		wx_ptp_reset_cyclecounter(wx);
+	/* ping all the active vfs to let them know we are going down */
+	wx_ping_all_vfs_with_link_status(wx, false);
+}
+
+static void ngbe_mac_link_up(struct phylink_config *config,
+			     struct phy_device *phy,
+			     unsigned int mode, phy_interface_t interface,
+			     int speed, int duplex,
+			     bool tx_pause, bool rx_pause)
+{
+	struct wx *wx = phylink_to_wx(config);
+	u32 lan_speed, reg;
+
+	wx_fc_enable(wx, tx_pause, rx_pause);
+
+	switch (speed) {
+	case SPEED_10:
+		lan_speed = 0;
+		break;
+	case SPEED_100:
+		lan_speed = 1;
+		break;
+	case SPEED_1000:
+	default:
+		lan_speed = 2;
+		break;
+	}
+
+	wr32m(wx, NGBE_CFG_LAN_SPEED, 0x3, lan_speed);
+
+	reg = rd32(wx, WX_MAC_TX_CFG);
+	reg &= ~WX_MAC_TX_CFG_SPEED_MASK;
+	reg |= WX_MAC_TX_CFG_SPEED_1G | WX_MAC_TX_CFG_TE;
+	wr32(wx, WX_MAC_TX_CFG, reg);
+
+	/* Re configure MAC Rx */
+	reg = rd32(wx, WX_MAC_RX_CFG);
+	wr32(wx, WX_MAC_RX_CFG, reg);
+	wr32(wx, WX_MAC_PKT_FLT, WX_MAC_PKT_FLT_PR);
+	reg = rd32(wx, WX_MAC_WDG_TIMEOUT);
+	wr32(wx, WX_MAC_WDG_TIMEOUT, reg);
+
+	wx->speed = speed;
+	wx->last_rx_ptp_check = jiffies;
+	if (test_bit(WX_STATE_PTP_RUNNING, wx->state))
+		wx_ptp_reset_cyclecounter(wx);
+	/* ping all the active vfs to let them know we are going up */
+	wx_ping_all_vfs_with_link_status(wx, true);
+}
+
+static const struct phylink_mac_ops ngbe_mac_ops = {
+	.mac_config = ngbe_mac_config,
+	.mac_link_down = ngbe_mac_link_down,
+	.mac_link_up = ngbe_mac_link_up,
+};
+
+static int ngbe_phylink_init(struct wx *wx)
+{
+	struct phylink_config *config;
+	phy_interface_t phy_mode;
+	struct phylink *phylink;
+
+	config = &wx->phylink_config;
+	config->dev = &wx->netdev->dev;
+	config->type = PHYLINK_NETDEV;
+	config->mac_capabilities = MAC_1000FD | MAC_100FD | MAC_10FD |
+				   MAC_SYM_PAUSE | MAC_ASYM_PAUSE;
+	config->mac_managed_pm = true;
+
+	/* The MAC only has add the Tx delay and it can not be modified.
+	 * So just disable TX delay in PHY, and it is does not matter to
+	 * internal phy.
+	 */
+	phy_mode = PHY_INTERFACE_MODE_RGMII_RXID;
+	__set_bit(PHY_INTERFACE_MODE_RGMII_RXID, config->supported_interfaces);
+
+	phylink = phylink_create(config, NULL, phy_mode, &ngbe_mac_ops);
+	if (IS_ERR(phylink))
+		return PTR_ERR(phylink);
+
+	wx->phylink = phylink;
+
+	return 0;
+}
+
+int ngbe_mdio_init(struct wx *wx)
+{
+	struct pci_dev *pdev = wx->pdev;
+	struct mii_bus *mii_bus;
+	int ret;
+
+	mii_bus = devm_mdiobus_alloc(&pdev->dev);
+	if (!mii_bus)
+		return -ENOMEM;
+
+	mii_bus->name = "ngbe_mii_bus";
+	mii_bus->read = ngbe_phy_read_reg_c22;
+	mii_bus->write = ngbe_phy_write_reg_c22;
+	mii_bus->phy_mask = GENMASK(31, 4);
+	mii_bus->parent = &pdev->dev;
+	mii_bus->priv = wx;
+
+	if (wx->mac_type == em_mac_type_rgmii) {
+		mii_bus->read_c45 = wx_phy_read_reg_mdi_c45;
+		mii_bus->write_c45 = wx_phy_write_reg_mdi_c45;
+	}
+
+	snprintf(mii_bus->id, MII_BUS_ID_SIZE, "ngbe-%x", pci_dev_id(pdev));
+	ret = devm_mdiobus_register(&pdev->dev, mii_bus);
+	if (ret)
+		return ret;
+
+	wx->phydev = phy_find_first(mii_bus);
+	if (!wx->phydev)
+		return -ENODEV;
+
+	phy_attached_info(wx->phydev);
+
+	wx->link = 0;
+	wx->speed = 0;
+	wx->duplex = 0;
+
+	ret = ngbe_phylink_init(wx);
+	if (ret) {
+		wx_err(wx, "failed to init phylink: %d\n", ret);
+		return ret;
+	}
+
+	return 0;
+}

linux-7.2.3/drivers/net/ethernet/wangxun/ngbe/ngbe_mdio.h

@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * WangXun Gigabit PCI Express Linux driver
+ * Copyright (c) 2019 - 2022 Beijing WangXun Technology Co., Ltd.
+ */
+
+#ifndef _NGBE_MDIO_H_
+#define _NGBE_MDIO_H_
+
+int ngbe_mdio_init(struct wx *wx);
+#endif /* _NGBE_MDIO_H_ */

linux-7.2.3/drivers/net/ethernet/wangxun/ngbe/ngbe_type.h

@@ -0,0 +1,129 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2019 - 2022 Beijing WangXun Technology Co., Ltd. */
+
+#ifndef _NGBE_TYPE_H_
+#define _NGBE_TYPE_H_
+
+#include <linux/types.h>
+#include <linux/netdevice.h>
+
+/************ NGBE_register.h ************/
+/* Device IDs */
+#define NGBE_DEV_ID_EM_WX1860AL_W		0x0100
+#define NGBE_DEV_ID_EM_WX1860A2			0x0101
+#define NGBE_DEV_ID_EM_WX1860A2S		0x0102
+#define NGBE_DEV_ID_EM_WX1860A4			0x0103
+#define NGBE_DEV_ID_EM_WX1860A4S		0x0104
+#define NGBE_DEV_ID_EM_WX1860AL2		0x0105
+#define NGBE_DEV_ID_EM_WX1860AL2S		0x0106
+#define NGBE_DEV_ID_EM_WX1860AL4		0x0107
+#define NGBE_DEV_ID_EM_WX1860AL4S		0x0108
+#define NGBE_DEV_ID_EM_WX1860LC			0x0109
+#define NGBE_DEV_ID_EM_WX1860A1			0x010a
+#define NGBE_DEV_ID_EM_WX1860A1L		0x010b
+
+/* Subsystem ID */
+#define NGBE_SUBID_M88E1512_SFP			0x0003
+#define NGBE_SUBID_OCP_CARD			0x0040
+#define NGBE_SUBID_LY_M88E1512_SFP		0x0050
+#define NGBE_SUBID_M88E1512_RJ45		0x0051
+#define NGBE_SUBID_M88E1512_MIX			0x0052
+#define NGBE_SUBID_YT8521S_SFP			0x0060
+#define NGBE_SUBID_INTERNAL_YT8521S_SFP		0x0061
+#define NGBE_SUBID_YT8521S_SFP_GPIO		0x0062
+#define NGBE_SUBID_INTERNAL_YT8521S_SFP_GPIO	0x0064
+#define NGBE_SUBID_LY_YT8521S_SFP		0x0070
+#define NGBE_SUBID_RGMII_FPGA			0x0080
+
+#define NGBE_OEM_MASK				0x00FF
+
+/**************** EM Registers ****************************/
+/* chip control Registers */
+#define NGBE_MIS_PRB_CTL			0x10010
+/* FMGR Registers */
+#define NGBE_SPI_ILDR_STATUS			0x10120
+#define NGBE_SPI_ILDR_STATUS_PERST		BIT(0) /* PCIE_PERST is done */
+#define NGBE_SPI_ILDR_STATUS_PWRRST		BIT(1) /* Power on reset is done */
+
+/* Checksum and EEPROM pointers */
+#define NGBE_CALSUM_COMMAND			0xE9
+#define NGBE_CALSUM_CAP_STATUS			0x10224
+#define NGBE_EEPROM_VERSION_STORE_REG		0x1022C
+#define NGBE_SAN_MAC_ADDR_PTR			0x18
+#define NGBE_DEVICE_CAPS			0x1C
+#define NGBE_EEPROM_VERSION_L			0x1D
+#define NGBE_EEPROM_VERSION_H			0x1E
+
+/* GPIO Registers */
+#define NGBE_GPIO_DR				0x14800
+#define NGBE_GPIO_DDR				0x14804
+/*GPIO bit */
+#define NGBE_GPIO_DR_0				BIT(0) /* SDP0 Data Value */
+#define NGBE_GPIO_DR_1				BIT(1) /* SDP1 Data Value */
+#define NGBE_GPIO_DDR_0				BIT(0) /* SDP0 IO direction */
+#define NGBE_GPIO_DDR_1				BIT(1) /* SDP1 IO direction */
+
+/* Extended Interrupt Enable Set */
+#define NGBE_PX_MISC_IEN_DEV_RST		BIT(10)
+#define NGBE_PX_MISC_IEN_TIMESYNC		BIT(11)
+#define NGBE_PX_MISC_IEN_ETH_LK			BIT(18)
+#define NGBE_PX_MISC_IEN_INT_ERR		BIT(20)
+#define NGBE_PX_MISC_IC_VF_MBOX			BIT(23)
+#define NGBE_PX_MISC_IEN_GPIO			BIT(26)
+#define NGBE_PX_MISC_IEN_MASK ( \
+				NGBE_PX_MISC_IEN_DEV_RST | \
+				NGBE_PX_MISC_IEN_TIMESYNC | \
+				NGBE_PX_MISC_IEN_ETH_LK | \
+				NGBE_PX_MISC_IEN_INT_ERR | \
+				NGBE_PX_MISC_IC_VF_MBOX | \
+				NGBE_PX_MISC_IEN_GPIO)
+
+/* Extended Interrupt Cause Read */
+#define NGBE_PX_MISC_IC_TIMESYNC		BIT(11) /* time sync */
+
+#define NGBE_INTR_ALL				0x1FF
+#define NGBE_INTR_MISC(A)			BIT((A)->msix_entry->entry)
+
+#define NGBE_PHY_CONFIG(reg_offset)		(0x14000 + ((reg_offset) * 4))
+#define NGBE_CFG_LAN_SPEED			0x14440
+#define NGBE_CFG_PORT_ST			0x14404
+
+#define NGBE_FW_EEPROM_CHECKSUM_CMD		0xE9
+#define NGBE_FW_NVM_DATA_OFFSET			3
+#define NGBE_FW_CMD_DEFAULT_CHECKSUM		0xFF /* checksum always 0xFF */
+#define NGBE_FW_CMD_ST_PASS			0x80658383
+#define NGBE_FW_CMD_ST_FAIL			0x70657376
+
+#define NGBE_MAX_FDIR_INDICES			7
+#define NGBE_MAX_RSS_INDICES			8
+
+#define NGBE_MAX_RX_QUEUES			(NGBE_MAX_FDIR_INDICES + 1)
+#define NGBE_MAX_TX_QUEUES			(NGBE_MAX_FDIR_INDICES + 1)
+
+#define NGBE_ETH_LENGTH_OF_ADDRESS		6
+#define NGBE_MAX_MSIX_VECTORS			0x09
+#define NGBE_RAR_ENTRIES			32
+#define NGBE_RX_PB_SIZE				42
+#define NGBE_MC_TBL_SIZE			128
+#define NGBE_SP_VFT_TBL_SIZE			128
+#define NGBE_TDB_PB_SZ				(20 * 1024) /* 160KB Packet Buffer */
+
+/* TX/RX descriptor defines */
+#define NGBE_DEFAULT_TXD			512 /* default ring size */
+#define NGBE_DEFAULT_TX_WORK			256
+#define NGBE_MAX_TXD				8192
+#define NGBE_MIN_TXD				128
+
+#define NGBE_DEFAULT_RXD			512 /* default ring size */
+#define NGBE_DEFAULT_RX_WORK			256
+#define NGBE_MAX_RXD				8192
+#define NGBE_MIN_RXD				128
+
+#define NGBE_MAX_VFS_DRV_LIMIT			7
+extern char ngbe_driver_name[];
+
+void ngbe_down(struct wx *wx);
+void ngbe_up(struct wx *wx);
+int ngbe_setup_tc(struct net_device *dev, u8 tc);
+
+#endif /* _NGBE_TYPE_H_ */

linux-7.2.3/drivers/net/ethernet/wangxun/ngbevf/Makefile

@@ -0,0 +1,9 @@
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (c) 2015 - 2025 Beijing WangXun Technology Co., Ltd.
+#
+# Makefile for the Wangxun(R) 1GbE virtual functions driver
+#
+
+obj-$(CONFIG_NGBE) += ngbevf.o
+
+ngbevf-objs := ngbevf_main.o

linux-7.2.3/drivers/net/ethernet/wangxun/ngbevf/ngbevf_main.c

@@ -0,0 +1,266 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2015 - 2025 Beijing WangXun Technology Co., Ltd. */
+
+#include <linux/types.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/netdevice.h>
+#include <linux/string.h>
+#include <linux/etherdevice.h>
+
+#include "../libwx/wx_type.h"
+#include "../libwx/wx_hw.h"
+#include "../libwx/wx_lib.h"
+#include "../libwx/wx_mbx.h"
+#include "../libwx/wx_vf.h"
+#include "../libwx/wx_vf_common.h"
+#include "../libwx/wx_ethtool.h"
+#include "ngbevf_type.h"
+
+/* ngbevf_pci_tbl - PCI Device ID Table
+ *
+ * Wildcard entries (PCI_ANY_ID) should come last
+ * Last entry must be all 0s
+ *
+ * { Vendor ID, Device ID, SubVendor ID, SubDevice ID,
+ *   Class, Class Mask, private data (not used) }
+ */
+static const struct pci_device_id ngbevf_pci_tbl[] = {
+	{ PCI_VDEVICE(WANGXUN, NGBEVF_DEV_ID_EM_WX1860AL_W) },
+	{ PCI_VDEVICE(WANGXUN, NGBEVF_DEV_ID_EM_WX1860A2) },
+	{ PCI_VDEVICE(WANGXUN, NGBEVF_DEV_ID_EM_WX1860A2S) },
+	{ PCI_VDEVICE(WANGXUN, NGBEVF_DEV_ID_EM_WX1860A4) },
+	{ PCI_VDEVICE(WANGXUN, NGBEVF_DEV_ID_EM_WX1860A4S) },
+	{ PCI_VDEVICE(WANGXUN, NGBEVF_DEV_ID_EM_WX1860AL2) },
+	{ PCI_VDEVICE(WANGXUN, NGBEVF_DEV_ID_EM_WX1860AL2S) },
+	{ PCI_VDEVICE(WANGXUN, NGBEVF_DEV_ID_EM_WX1860AL4) },
+	{ PCI_VDEVICE(WANGXUN, NGBEVF_DEV_ID_EM_WX1860AL4S) },
+	{ PCI_VDEVICE(WANGXUN, NGBEVF_DEV_ID_EM_WX1860NCSI) },
+	{ PCI_VDEVICE(WANGXUN, NGBEVF_DEV_ID_EM_WX1860A1) },
+	{ PCI_VDEVICE(WANGXUN, NGBEVF_DEV_ID_EM_WX1860AL1) },
+	/* required last entry */
+	{ }
+};
+
+static const struct net_device_ops ngbevf_netdev_ops = {
+	.ndo_open               = wxvf_open,
+	.ndo_stop               = wxvf_close,
+	.ndo_start_xmit         = wx_xmit_frame,
+	.ndo_validate_addr      = eth_validate_addr,
+	.ndo_set_mac_address    = wx_set_mac_vf,
+};
+
+static void ngbevf_set_num_queues(struct wx *wx)
+{
+	/* Start with base case */
+	wx->num_rx_queues = 1;
+	wx->num_tx_queues = 1;
+}
+
+static int ngbevf_sw_init(struct wx *wx)
+{
+	struct net_device *netdev = wx->netdev;
+	struct pci_dev *pdev = wx->pdev;
+	int err;
+
+	/* Initialize pcie info and common capability flags */
+	err = wx_sw_init(wx);
+	if (err < 0)
+		goto err_wx_sw_init;
+
+	/* Initialize the mailbox */
+	err = wx_init_mbx_params_vf(wx);
+	if (err)
+		goto err_init_mbx_params;
+
+	/* Initialize the device type */
+	wx->mac.type = wx_mac_em;
+	wx->mac.max_msix_vectors = NGBEVF_MAX_MSIX_VECTORS;
+	/* lock to protect mailbox accesses */
+	spin_lock_init(&wx->mbx.mbx_lock);
+
+	err = wx_reset_hw_vf(wx);
+	if (err) {
+		wx_err(wx, "PF still in reset state. Is the PF interface up?\n");
+		goto err_reset_hw;
+	}
+	wx_init_hw_vf(wx);
+	wx_negotiate_api_vf(wx);
+	if (is_zero_ether_addr(wx->mac.addr))
+		dev_info(&pdev->dev,
+			 "MAC address not assigned by administrator.\n");
+	eth_hw_addr_set(netdev, wx->mac.addr);
+
+	if (!is_valid_ether_addr(netdev->dev_addr)) {
+		dev_info(&pdev->dev, "Assigning random MAC address\n");
+		eth_hw_addr_random(netdev);
+		ether_addr_copy(wx->mac.addr, netdev->dev_addr);
+		ether_addr_copy(wx->mac.perm_addr, netdev->dev_addr);
+	}
+
+	wx->mac.max_tx_queues = NGBEVF_MAX_TX_QUEUES;
+	wx->mac.max_rx_queues = NGBEVF_MAX_RX_QUEUES;
+	/* Enable dynamic interrupt throttling rates */
+	wx->adaptive_itr = true;
+	wx->rx_itr_setting = 1;
+	wx->tx_itr_setting = 1;
+	/* set default ring sizes */
+	wx->tx_ring_count = NGBEVF_DEFAULT_TXD;
+	wx->rx_ring_count = NGBEVF_DEFAULT_RXD;
+	/* set default work limits */
+	wx->tx_work_limit = NGBEVF_DEFAULT_TX_WORK;
+	wx->rx_work_limit = NGBEVF_DEFAULT_RX_WORK;
+	wx->set_num_queues = ngbevf_set_num_queues;
+
+	return 0;
+err_reset_hw:
+	kfree(wx->vfinfo);
+err_init_mbx_params:
+	kfree(wx->rss_key);
+	kfree(wx->mac_table);
+err_wx_sw_init:
+	return err;
+}
+
+/**
+ * ngbevf_probe - Device Initialization Routine
+ * @pdev: PCI device information struct
+ * @ent: entry in ngbevf_pci_tbl
+ *
+ * Return: return 0 on success, negative on failure
+ *
+ * ngbevf_probe initializes an adapter identified by a pci_dev structure.
+ * The OS initialization, configuring of the adapter private structure,
+ * and a hardware reset occur.
+ **/
+static int ngbevf_probe(struct pci_dev *pdev,
+			const struct pci_device_id __always_unused *ent)
+{
+	struct net_device *netdev;
+	struct wx *wx = NULL;
+	int err;
+
+	err = pci_enable_device_mem(pdev);
+	if (err)
+		return err;
+
+	err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
+	if (err) {
+		dev_err(&pdev->dev,
+			"No usable DMA configuration, aborting\n");
+		goto err_pci_disable_dev;
+	}
+
+	err = pci_request_selected_regions(pdev,
+					   pci_select_bars(pdev, IORESOURCE_MEM),
+					   dev_driver_string(&pdev->dev));
+	if (err) {
+		dev_err(&pdev->dev,
+			"pci_request_selected_regions failed 0x%x\n", err);
+		goto err_pci_disable_dev;
+	}
+
+	pci_set_master(pdev);
+
+	netdev = devm_alloc_etherdev_mqs(&pdev->dev,
+					 sizeof(struct wx),
+					 NGBEVF_MAX_TX_QUEUES,
+					 NGBEVF_MAX_RX_QUEUES);
+	if (!netdev) {
+		err = -ENOMEM;
+		goto err_pci_release_regions;
+	}
+
+	SET_NETDEV_DEV(netdev, &pdev->dev);
+
+	wx = netdev_priv(netdev);
+	wx->netdev = netdev;
+	wx->pdev = pdev;
+
+	wx->msg_enable = netif_msg_init(-1, NETIF_MSG_DRV |
+					NETIF_MSG_PROBE | NETIF_MSG_LINK);
+	wx->hw_addr = devm_ioremap(&pdev->dev,
+				   pci_resource_start(pdev, 0),
+				   pci_resource_len(pdev, 0));
+	if (!wx->hw_addr) {
+		err = -EIO;
+		goto err_pci_release_regions;
+	}
+
+	wx->driver_name = KBUILD_MODNAME;
+	wx_set_ethtool_ops_vf(netdev);
+	netdev->netdev_ops = &ngbevf_netdev_ops;
+
+	/* setup the private structure */
+	err = ngbevf_sw_init(wx);
+	if (err)
+		goto err_pci_release_regions;
+
+	netdev->features |= NETIF_F_HIGHDMA;
+
+	eth_hw_addr_set(netdev, wx->mac.perm_addr);
+	ether_addr_copy(netdev->perm_addr, wx->mac.addr);
+
+	wxvf_init_service(wx);
+	err = wx_init_interrupt_scheme(wx);
+	if (err)
+		goto err_free_sw_init;
+
+	wx_get_fw_version_vf(wx);
+	err = register_netdev(netdev);
+	if (err)
+		goto err_register;
+
+	pci_set_drvdata(pdev, wx);
+	netif_tx_stop_all_queues(netdev);
+
+	return 0;
+
+err_register:
+	wx_clear_interrupt_scheme(wx);
+err_free_sw_init:
+	timer_delete_sync(&wx->service_timer);
+	cancel_work_sync(&wx->service_task);
+	kfree(wx->vfinfo);
+	kfree(wx->rss_key);
+	kfree(wx->mac_table);
+err_pci_release_regions:
+	pci_release_selected_regions(pdev,
+				     pci_select_bars(pdev, IORESOURCE_MEM));
+err_pci_disable_dev:
+	pci_disable_device(pdev);
+	return err;
+}
+
+/**
+ * ngbevf_remove - Device Removal Routine
+ * @pdev: PCI device information struct
+ *
+ * ngbevf_remove is called by the PCI subsystem to alert the driver
+ * that it should release a PCI device.  The could be caused by a
+ * Hot-Plug event, or because the driver is going to be removed from
+ * memory.
+ **/
+static void ngbevf_remove(struct pci_dev *pdev)
+{
+	wxvf_remove(pdev);
+}
+
+static DEFINE_SIMPLE_DEV_PM_OPS(ngbevf_pm_ops, wxvf_suspend, wxvf_resume);
+
+static struct pci_driver ngbevf_driver = {
+	.name     = KBUILD_MODNAME,
+	.id_table = ngbevf_pci_tbl,
+	.probe    = ngbevf_probe,
+	.remove   = ngbevf_remove,
+	.shutdown = wxvf_shutdown,
+	/* Power Management Hooks */
+	.driver.pm	= pm_sleep_ptr(&ngbevf_pm_ops)
+};
+
+module_pci_driver(ngbevf_driver);
+
+MODULE_DEVICE_TABLE(pci, ngbevf_pci_tbl);
+MODULE_AUTHOR("Beijing WangXun Technology Co., Ltd, <software@trustnetic.com>");
+MODULE_DESCRIPTION("WangXun(R) Gigabit PCI Express Network Driver");
+MODULE_LICENSE("GPL");

linux-7.2.3/drivers/net/ethernet/wangxun/ngbevf/ngbevf_type.h

@@ -0,0 +1,29 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2015 - 2025 Beijing WangXun Technology Co., Ltd. */
+
+#ifndef _NGBEVF_TYPE_H_
+#define _NGBEVF_TYPE_H_
+
+/* Device IDs */
+#define NGBEVF_DEV_ID_EM_WX1860AL_W             0x0110
+#define NGBEVF_DEV_ID_EM_WX1860A2               0x0111
+#define NGBEVF_DEV_ID_EM_WX1860A2S              0x0112
+#define NGBEVF_DEV_ID_EM_WX1860A4               0x0113
+#define NGBEVF_DEV_ID_EM_WX1860A4S              0x0114
+#define NGBEVF_DEV_ID_EM_WX1860AL2              0x0115
+#define NGBEVF_DEV_ID_EM_WX1860AL2S             0x0116
+#define NGBEVF_DEV_ID_EM_WX1860AL4              0x0117
+#define NGBEVF_DEV_ID_EM_WX1860AL4S             0x0118
+#define NGBEVF_DEV_ID_EM_WX1860NCSI             0x0119
+#define NGBEVF_DEV_ID_EM_WX1860A1               0x011a
+#define NGBEVF_DEV_ID_EM_WX1860AL1              0x011b
+
+#define NGBEVF_MAX_MSIX_VECTORS               1
+#define NGBEVF_MAX_RX_QUEUES                  1
+#define NGBEVF_MAX_TX_QUEUES                  1
+#define NGBEVF_DEFAULT_TXD                    128
+#define NGBEVF_DEFAULT_RXD                    128
+#define NGBEVF_DEFAULT_TX_WORK                256
+#define NGBEVF_DEFAULT_RX_WORK                256
+
+#endif /* _NGBEVF_TYPE_H_ */

linux-7.2.3/drivers/net/ethernet/wangxun/txgbe/Makefile

@@ -0,0 +1,15 @@
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (c) 2015 - 2022 Beijing WangXun Technology Co., Ltd.
+#
+# Makefile for the Wangxun(R) 10GbE PCI Express ethernet driver
+#
+
+obj-$(CONFIG_TXGBE) += txgbe.o
+
+txgbe-objs := txgbe_main.o \
+              txgbe_hw.o \
+              txgbe_phy.o \
+              txgbe_irq.o \
+              txgbe_fdir.o \
+              txgbe_ethtool.o \
+              txgbe_aml.o

linux-7.2.3/drivers/net/ethernet/wangxun/txgbe/txgbe_aml.c

@@ -0,0 +1,527 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2015 - 2025 Beijing WangXun Technology Co., Ltd. */
+
+#include <linux/phylink.h>
+#include <linux/iopoll.h>
+#include <linux/pci.h>
+#include <linux/phy.h>
+
+#include "../libwx/wx_type.h"
+#include "../libwx/wx_lib.h"
+#include "../libwx/wx_ptp.h"
+#include "../libwx/wx_hw.h"
+#include "../libwx/wx_sriov.h"
+#include "txgbe_type.h"
+#include "txgbe_aml.h"
+#include "txgbe_hw.h"
+
+void txgbe_gpio_init_aml(struct wx *wx)
+{
+	u32 status, mod_rst;
+
+	if (wx->mac.type == wx_mac_aml40)
+		mod_rst = TXGBE_GPIOBIT_4;
+	else
+		mod_rst = TXGBE_GPIOBIT_2;
+
+	wr32(wx, WX_GPIO_INTTYPE_LEVEL, mod_rst);
+	wr32(wx, WX_GPIO_INTEN, mod_rst);
+
+	status = rd32(wx, WX_GPIO_INTSTATUS);
+	for (int i = 0; i < 6; i++) {
+		if (status & BIT(i))
+			wr32(wx, WX_GPIO_EOI, BIT(i));
+	}
+}
+
+irqreturn_t txgbe_gpio_irq_handler_aml(int irq, void *data)
+{
+	struct txgbe *txgbe = data;
+	struct wx *wx = txgbe->wx;
+	u32 status, mod_rst;
+
+	if (wx->mac.type == wx_mac_aml40)
+		mod_rst = TXGBE_GPIOBIT_4;
+	else
+		mod_rst = TXGBE_GPIOBIT_2;
+
+	wr32(wx, WX_GPIO_INTMASK, 0xFF);
+	status = rd32(wx, WX_GPIO_INTSTATUS);
+	if (status & mod_rst) {
+		set_bit(WX_FLAG_NEED_MODULE_RESET, wx->flags);
+		wr32(wx, WX_GPIO_EOI, mod_rst);
+		wx_service_event_schedule(wx);
+	}
+
+	wr32(wx, WX_GPIO_INTMASK, 0);
+	return IRQ_HANDLED;
+}
+
+int txgbe_test_hostif(struct wx *wx)
+{
+	struct txgbe_hic_ephy_getlink buffer;
+
+	if (wx->mac.type == wx_mac_sp)
+		return 0;
+
+	buffer.hdr.cmd = FW_PHY_GET_LINK_CMD;
+	buffer.hdr.buf_len = sizeof(struct txgbe_hic_ephy_getlink) -
+			     sizeof(struct wx_hic_hdr);
+	buffer.hdr.cmd_or_resp.cmd_resv = FW_CEM_CMD_RESERVED;
+
+	return wx_host_interface_command(wx, (u32 *)&buffer, sizeof(buffer),
+					 WX_HI_COMMAND_TIMEOUT, false);
+}
+
+int txgbe_read_eeprom_hostif(struct wx *wx,
+			     struct txgbe_hic_i2c_read *buffer,
+			     u32 length, u8 *data)
+{
+	u32 dword_len, offset, value, i;
+	int err;
+
+	buffer->hdr.cmd = FW_READ_EEPROM_CMD;
+	buffer->hdr.buf_len = sizeof(struct txgbe_hic_i2c_read) -
+			      sizeof(struct wx_hic_hdr);
+	buffer->hdr.cmd_or_resp.cmd_resv = FW_CEM_CMD_RESERVED;
+
+	err = wx_host_interface_command(wx, (u32 *)buffer,
+					sizeof(struct txgbe_hic_i2c_read),
+					WX_HI_COMMAND_TIMEOUT, false);
+	if (err != 0)
+		return err;
+
+	/* buffer length offset to read return data */
+	offset = sizeof(struct txgbe_hic_i2c_read) >> 2;
+	dword_len = round_up(length, 4) >> 2;
+
+	for (i = 0; i < dword_len; i++) {
+		u32 copy_len = min_t(u32, 4, length - i * 4);
+
+		value = rd32a(wx, WX_FW2SW_MBOX, i + offset);
+		le32_to_cpus(&value);
+
+		memcpy(data, &value, copy_len);
+		data += copy_len;
+	}
+
+	return 0;
+}
+
+static int txgbe_identify_module_hostif(struct wx *wx,
+					struct txgbe_hic_get_module_info *buffer)
+{
+	buffer->hdr.cmd = FW_GET_MODULE_INFO_CMD;
+	buffer->hdr.buf_len = sizeof(struct txgbe_hic_get_module_info) -
+			      sizeof(struct wx_hic_hdr);
+	buffer->hdr.cmd_or_resp.cmd_resv = FW_CEM_CMD_RESERVED;
+
+	return wx_host_interface_command(wx, (u32 *)buffer,
+					 sizeof(struct txgbe_hic_get_module_info),
+					 WX_HI_COMMAND_TIMEOUT, true);
+}
+
+static int txgbe_set_phy_link_hostif(struct wx *wx, int speed, int autoneg, int duplex)
+{
+	struct txgbe_hic_ephy_setlink buffer;
+
+	buffer.hdr.cmd = FW_PHY_SET_LINK_CMD;
+	buffer.hdr.buf_len = sizeof(struct txgbe_hic_ephy_setlink) -
+			     sizeof(struct wx_hic_hdr);
+	buffer.hdr.cmd_or_resp.cmd_resv = FW_CEM_CMD_RESERVED;
+
+	switch (speed) {
+	case SPEED_40000:
+		buffer.speed = TXGBE_LINK_SPEED_40GB_FULL;
+		break;
+	case SPEED_25000:
+		buffer.speed = TXGBE_LINK_SPEED_25GB_FULL;
+		break;
+	case SPEED_10000:
+		buffer.speed = TXGBE_LINK_SPEED_10GB_FULL;
+		break;
+	default:
+		buffer.speed = TXGBE_LINK_SPEED_UNKNOWN;
+		break;
+	}
+
+	buffer.fec_mode = TXGBE_PHY_FEC_AUTO;
+	buffer.autoneg = autoneg;
+	buffer.duplex = duplex;
+
+	return wx_host_interface_command(wx, (u32 *)&buffer, sizeof(buffer),
+					 WX_HI_COMMAND_TIMEOUT, false);
+}
+
+static void txgbe_get_link_capabilities(struct wx *wx, int *speed,
+					int *autoneg, int *duplex)
+{
+	struct txgbe *txgbe = wx->priv;
+
+	if (test_bit(PHY_INTERFACE_MODE_XLGMII, txgbe->link_interfaces))
+		*speed = SPEED_40000;
+	else if (test_bit(PHY_INTERFACE_MODE_25GBASER, txgbe->link_interfaces))
+		*speed = SPEED_25000;
+	else if (test_bit(PHY_INTERFACE_MODE_10GBASER, txgbe->link_interfaces))
+		*speed = SPEED_10000;
+	else
+		*speed = SPEED_UNKNOWN;
+
+	*autoneg = phylink_test(txgbe->advertising, Autoneg);
+	*duplex = *speed == SPEED_UNKNOWN ? DUPLEX_HALF : DUPLEX_FULL;
+}
+
+static void txgbe_get_mac_link(struct wx *wx, int *speed)
+{
+	u32 status;
+
+	status = rd32(wx, TXGBE_CFG_PORT_ST);
+	if (!(status & TXGBE_CFG_PORT_ST_LINK_UP))
+		*speed = SPEED_UNKNOWN;
+	else if (status & TXGBE_CFG_PORT_ST_LINK_AML_40G)
+		*speed = SPEED_40000;
+	else if (status & TXGBE_CFG_PORT_ST_LINK_AML_25G)
+		*speed = SPEED_25000;
+	else if (status & TXGBE_CFG_PORT_ST_LINK_AML_10G)
+		*speed = SPEED_10000;
+	else
+		*speed = SPEED_UNKNOWN;
+}
+
+void txgbe_set_phy_link(struct wx *wx)
+{
+	int speed, autoneg, duplex, err;
+
+	txgbe_get_link_capabilities(wx, &speed, &autoneg, &duplex);
+
+	err = txgbe_set_phy_link_hostif(wx, speed, autoneg, duplex);
+	if (err)
+		wx_err(wx, "Failed to setup link\n");
+}
+
+static int txgbe_sfp_to_linkmodes(struct wx *wx, struct txgbe_sff_id *id)
+{
+	__ETHTOOL_DECLARE_LINK_MODE_MASK(modes) = { 0, };
+	DECLARE_PHY_INTERFACE_MASK_ZERO(interfaces);
+	struct txgbe *txgbe = wx->priv;
+
+	if (id->cable_tech & TXGBE_SFF_DA_PASSIVE_CABLE) {
+		txgbe->link_port = PORT_DA;
+		phylink_set(modes, Autoneg);
+		if (id->com_25g_code == TXGBE_SFF_25GBASECR_91FEC ||
+		    id->com_25g_code == TXGBE_SFF_25GBASECR_74FEC ||
+		    id->com_25g_code == TXGBE_SFF_25GBASECR_NOFEC) {
+			phylink_set(modes, 25000baseCR_Full);
+			phylink_set(modes, 10000baseCR_Full);
+			__set_bit(PHY_INTERFACE_MODE_25GBASER, interfaces);
+			__set_bit(PHY_INTERFACE_MODE_10GBASER, interfaces);
+		} else {
+			phylink_set(modes, 10000baseCR_Full);
+			__set_bit(PHY_INTERFACE_MODE_10GBASER, interfaces);
+		}
+	} else if (id->cable_tech & TXGBE_SFF_DA_ACTIVE_CABLE) {
+		txgbe->link_port = PORT_DA;
+		phylink_set(modes, Autoneg);
+		phylink_set(modes, 25000baseCR_Full);
+		__set_bit(PHY_INTERFACE_MODE_25GBASER, interfaces);
+	} else {
+		if (id->com_25g_code == TXGBE_SFF_25GBASESR_CAPABLE ||
+		    id->com_25g_code == TXGBE_SFF_25GBASEER_CAPABLE ||
+		    id->com_25g_code == TXGBE_SFF_25GBASELR_CAPABLE) {
+			txgbe->link_port = PORT_FIBRE;
+			phylink_set(modes, 25000baseSR_Full);
+			__set_bit(PHY_INTERFACE_MODE_25GBASER, interfaces);
+		}
+		if (id->com_10g_code & TXGBE_SFF_10GBASESR_CAPABLE) {
+			txgbe->link_port = PORT_FIBRE;
+			phylink_set(modes, 10000baseSR_Full);
+			__set_bit(PHY_INTERFACE_MODE_10GBASER, interfaces);
+		}
+		if (id->com_10g_code & TXGBE_SFF_10GBASELR_CAPABLE) {
+			txgbe->link_port = PORT_FIBRE;
+			phylink_set(modes, 10000baseLR_Full);
+			__set_bit(PHY_INTERFACE_MODE_10GBASER, interfaces);
+		}
+	}
+
+	if (phy_interface_empty(interfaces)) {
+		wx_err(wx, "unsupported SFP module\n");
+		return -EINVAL;
+	}
+
+	phylink_set(modes, Pause);
+	phylink_set(modes, Asym_Pause);
+	phylink_set(modes, FIBRE);
+
+	if (!linkmode_equal(txgbe->link_support, modes)) {
+		linkmode_copy(txgbe->link_support, modes);
+		phy_interface_and(txgbe->link_interfaces,
+				  wx->phylink_config.supported_interfaces,
+				  interfaces);
+		linkmode_copy(txgbe->advertising, modes);
+
+		set_bit(WX_FLAG_NEED_LINK_CONFIG, wx->flags);
+	}
+
+	return 0;
+}
+
+static int txgbe_qsfp_to_linkmodes(struct wx *wx, struct txgbe_sff_id *id)
+{
+	__ETHTOOL_DECLARE_LINK_MODE_MASK(modes) = { 0, };
+	DECLARE_PHY_INTERFACE_MASK_ZERO(interfaces);
+	struct txgbe *txgbe = wx->priv;
+
+	if (id->transceiver_type & TXGBE_SFF_ETHERNET_40G_CR4) {
+		txgbe->link_port = PORT_DA;
+		phylink_set(modes, Autoneg);
+		phylink_set(modes, 40000baseCR4_Full);
+		phylink_set(modes, 10000baseCR_Full);
+		__set_bit(PHY_INTERFACE_MODE_XLGMII, interfaces);
+		__set_bit(PHY_INTERFACE_MODE_10GBASER, interfaces);
+	}
+	if (id->transceiver_type & TXGBE_SFF_ETHERNET_40G_SR4) {
+		txgbe->link_port = PORT_FIBRE;
+		phylink_set(modes, 40000baseSR4_Full);
+		__set_bit(PHY_INTERFACE_MODE_XLGMII, interfaces);
+	}
+	if (id->transceiver_type & TXGBE_SFF_ETHERNET_40G_LR4) {
+		txgbe->link_port = PORT_FIBRE;
+		phylink_set(modes, 40000baseLR4_Full);
+		__set_bit(PHY_INTERFACE_MODE_XLGMII, interfaces);
+	}
+	if (id->transceiver_type & TXGBE_SFF_ETHERNET_40G_ACTIVE) {
+		txgbe->link_port = PORT_DA;
+		phylink_set(modes, Autoneg);
+		phylink_set(modes, 40000baseCR4_Full);
+		__set_bit(PHY_INTERFACE_MODE_XLGMII, interfaces);
+	}
+	if (id->transceiver_type & TXGBE_SFF_ETHERNET_RSRVD) {
+		if (id->sff_opt1 & TXGBE_SFF_ETHERNET_100G_CR4) {
+			txgbe->link_port = PORT_DA;
+			phylink_set(modes, Autoneg);
+			phylink_set(modes, 40000baseCR4_Full);
+			phylink_set(modes, 25000baseCR_Full);
+			phylink_set(modes, 10000baseCR_Full);
+			__set_bit(PHY_INTERFACE_MODE_XLGMII, interfaces);
+			__set_bit(PHY_INTERFACE_MODE_25GBASER, interfaces);
+			__set_bit(PHY_INTERFACE_MODE_10GBASER, interfaces);
+		}
+	}
+
+	if (phy_interface_empty(interfaces)) {
+		wx_err(wx, "unsupported QSFP module\n");
+		return -EINVAL;
+	}
+
+	phylink_set(modes, Pause);
+	phylink_set(modes, Asym_Pause);
+	phylink_set(modes, FIBRE);
+
+	if (!linkmode_equal(txgbe->link_support, modes)) {
+		linkmode_copy(txgbe->link_support, modes);
+		phy_interface_and(txgbe->link_interfaces,
+				  wx->phylink_config.supported_interfaces,
+				  interfaces);
+		linkmode_copy(txgbe->advertising, modes);
+
+		set_bit(WX_FLAG_NEED_LINK_CONFIG, wx->flags);
+	}
+
+	return 0;
+}
+
+int txgbe_identify_module(struct wx *wx)
+{
+	struct txgbe_hic_get_module_info buffer = { 0 };
+	struct txgbe_sff_id *id;
+	int err = 0;
+	u32 mod_abs;
+	u32 gpio;
+
+	if (wx->mac.type == wx_mac_aml40)
+		mod_abs = TXGBE_GPIOBIT_4;
+	else
+		mod_abs = TXGBE_GPIOBIT_2;
+
+	gpio = rd32(wx, WX_GPIO_EXT);
+	if (gpio & mod_abs)
+		return -ENODEV;
+
+	err = txgbe_identify_module_hostif(wx, &buffer);
+	if (err) {
+		wx_err(wx, "Failed to identify module\n");
+		return err;
+	}
+
+	id = &buffer.id;
+	if (id->identifier == TXGBE_SFF_IDENTIFIER_SFP)
+		return txgbe_sfp_to_linkmodes(wx, id);
+
+	if (id->identifier == TXGBE_SFF_IDENTIFIER_QSFP ||
+	    id->identifier == TXGBE_SFF_IDENTIFIER_QSFP_PLUS ||
+	    id->identifier == TXGBE_SFF_IDENTIFIER_QSFP28)
+		return txgbe_qsfp_to_linkmodes(wx, id);
+
+	wx_err(wx, "Invalid module\n");
+	return -EINVAL;
+}
+
+void txgbe_setup_link(struct wx *wx)
+{
+	struct txgbe *txgbe = wx->priv;
+
+	phy_interface_zero(txgbe->link_interfaces);
+	linkmode_zero(txgbe->link_support);
+
+	set_bit(WX_FLAG_NEED_MODULE_RESET, wx->flags);
+	wx_service_event_schedule(wx);
+}
+
+static void txgbe_get_link_state(struct phylink_config *config,
+				 struct phylink_link_state *state)
+{
+	struct wx *wx = phylink_to_wx(config);
+	int speed;
+
+	txgbe_get_mac_link(wx, &speed);
+	state->link = speed != SPEED_UNKNOWN;
+	state->speed = speed;
+	state->duplex = state->link ? DUPLEX_FULL : DUPLEX_UNKNOWN;
+}
+
+static void txgbe_reconfig_mac(struct wx *wx)
+{
+	u32 wdg, fc;
+
+	wdg = rd32(wx, WX_MAC_WDG_TIMEOUT);
+	fc = rd32(wx, WX_MAC_RX_FLOW_CTRL);
+
+	wr32(wx, WX_MIS_RST, TXGBE_MIS_RST_MAC_RST(wx->bus.func));
+	/* wait for MAC reset complete */
+	usleep_range(1000, 1500);
+
+	wr32m(wx, TXGBE_MAC_MISC_CTL, TXGBE_MAC_MISC_CTL_LINK_STS_MOD,
+	      TXGBE_MAC_MISC_CTL_LINK_BOTH);
+	wx_reset_mac(wx);
+
+	wr32(wx, WX_MAC_WDG_TIMEOUT, wdg);
+	wr32(wx, WX_MAC_RX_FLOW_CTRL, fc);
+}
+
+static void txgbe_mac_link_up_aml(struct phylink_config *config,
+				  struct phy_device *phy,
+				  unsigned int mode,
+				  phy_interface_t interface,
+				  int speed, int duplex,
+				  bool tx_pause, bool rx_pause)
+{
+	struct wx *wx = phylink_to_wx(config);
+	u32 txcfg;
+
+	wx_fc_enable(wx, tx_pause, rx_pause);
+
+	txgbe_reconfig_mac(wx);
+	txgbe_enable_sec_tx_path(wx);
+
+	txcfg = rd32(wx, TXGBE_AML_MAC_TX_CFG);
+	txcfg &= ~TXGBE_AML_MAC_TX_CFG_SPEED_MASK;
+
+	switch (speed) {
+	case SPEED_40000:
+		txcfg |= TXGBE_AML_MAC_TX_CFG_SPEED_40G;
+		break;
+	case SPEED_25000:
+		txcfg |= TXGBE_AML_MAC_TX_CFG_SPEED_25G;
+		break;
+	case SPEED_10000:
+		txcfg |= TXGBE_AML_MAC_TX_CFG_SPEED_10G;
+		break;
+	default:
+		break;
+	}
+
+	wr32m(wx, WX_MAC_RX_CFG, WX_MAC_RX_CFG_RE, WX_MAC_RX_CFG_RE);
+	wr32(wx, TXGBE_AML_MAC_TX_CFG, txcfg | TXGBE_AML_MAC_TX_CFG_TE);
+
+	wx->speed = speed;
+	wx->last_rx_ptp_check = jiffies;
+	if (test_bit(WX_STATE_PTP_RUNNING, wx->state))
+		wx_ptp_reset_cyclecounter(wx);
+	/* ping all the active vfs to let them know we are going up */
+	wx_ping_all_vfs_with_link_status(wx, true);
+}
+
+static void txgbe_mac_link_down_aml(struct phylink_config *config,
+				    unsigned int mode,
+				    phy_interface_t interface)
+{
+	struct wx *wx = phylink_to_wx(config);
+
+	wr32m(wx, TXGBE_AML_MAC_TX_CFG, TXGBE_AML_MAC_TX_CFG_TE, 0);
+	wr32m(wx, WX_MAC_RX_CFG, WX_MAC_RX_CFG_RE, 0);
+
+	wx->speed = SPEED_UNKNOWN;
+	if (test_bit(WX_STATE_PTP_RUNNING, wx->state))
+		wx_ptp_reset_cyclecounter(wx);
+	/* ping all the active vfs to let them know we are going down */
+	wx_ping_all_vfs_with_link_status(wx, false);
+}
+
+static void txgbe_mac_config_aml(struct phylink_config *config, unsigned int mode,
+				 const struct phylink_link_state *state)
+{
+}
+
+static const struct phylink_mac_ops txgbe_mac_ops_aml = {
+	.mac_config = txgbe_mac_config_aml,
+	.mac_link_down = txgbe_mac_link_down_aml,
+	.mac_link_up = txgbe_mac_link_up_aml,
+};
+
+int txgbe_phylink_init_aml(struct txgbe *txgbe)
+{
+	struct phylink_link_state state;
+	struct phylink_config *config;
+	struct wx *wx = txgbe->wx;
+	phy_interface_t phy_mode;
+	struct phylink *phylink;
+	int err;
+
+	config = &wx->phylink_config;
+	config->dev = &wx->netdev->dev;
+	config->type = PHYLINK_NETDEV;
+	config->mac_capabilities = MAC_25000FD | MAC_10000FD |
+				   MAC_SYM_PAUSE | MAC_ASYM_PAUSE;
+	config->get_fixed_state = txgbe_get_link_state;
+
+	if (wx->mac.type == wx_mac_aml40) {
+		config->mac_capabilities |= MAC_40000FD;
+		phy_mode = PHY_INTERFACE_MODE_XLGMII;
+		__set_bit(PHY_INTERFACE_MODE_XLGMII, config->supported_interfaces);
+		state.speed = SPEED_40000;
+		state.duplex = DUPLEX_FULL;
+	} else {
+		phy_mode = PHY_INTERFACE_MODE_25GBASER;
+		state.speed = SPEED_25000;
+		state.duplex = DUPLEX_FULL;
+	}
+
+	__set_bit(PHY_INTERFACE_MODE_25GBASER, config->supported_interfaces);
+	__set_bit(PHY_INTERFACE_MODE_10GBASER, config->supported_interfaces);
+
+	phylink = phylink_create(config, NULL, phy_mode, &txgbe_mac_ops_aml);
+	if (IS_ERR(phylink))
+		return PTR_ERR(phylink);
+
+	err = phylink_set_fixed_link(phylink, &state);
+	if (err) {
+		wx_err(wx, "Failed to set fixed link\n");
+		phylink_destroy(phylink);
+		return err;
+	}
+
+	wx->phylink = phylink;
+
+	return 0;
+}

linux-7.2.3/drivers/net/ethernet/wangxun/txgbe/txgbe_aml.h

@@ -0,0 +1,18 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2015 - 2025 Beijing WangXun Technology Co., Ltd. */
+
+#ifndef _TXGBE_AML_H_
+#define _TXGBE_AML_H_
+
+void txgbe_gpio_init_aml(struct wx *wx);
+irqreturn_t txgbe_gpio_irq_handler_aml(int irq, void *data);
+int txgbe_test_hostif(struct wx *wx);
+int txgbe_read_eeprom_hostif(struct wx *wx,
+			     struct txgbe_hic_i2c_read *buffer,
+			     u32 length, u8 *data);
+void txgbe_set_phy_link(struct wx *wx);
+int txgbe_identify_module(struct wx *wx);
+void txgbe_setup_link(struct wx *wx);
+int txgbe_phylink_init_aml(struct txgbe *txgbe);
+
+#endif /* _TXGBE_AML_H_ */

linux-7.2.3/drivers/net/ethernet/wangxun/txgbe/txgbe_ethtool.c

@@ -0,0 +1,597 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2015 - 2023 Beijing WangXun Technology Co., Ltd. */
+
+#include <linux/pci.h>
+#include <linux/phylink.h>
+#include <linux/netdevice.h>
+
+#include "../libwx/wx_ethtool.h"
+#include "../libwx/wx_type.h"
+#include "../libwx/wx_lib.h"
+#include "txgbe_type.h"
+#include "txgbe_fdir.h"
+#include "txgbe_aml.h"
+#include "txgbe_ethtool.h"
+
+int txgbe_get_link_ksettings(struct net_device *netdev,
+			     struct ethtool_link_ksettings *cmd)
+{
+	struct wx *wx = netdev_priv(netdev);
+	struct txgbe *txgbe = wx->priv;
+	int err;
+
+	err = wx_get_link_ksettings(netdev, cmd);
+	if (err)
+		return err;
+
+	if (wx->mac.type == wx_mac_sp)
+		return 0;
+
+	cmd->base.port = txgbe->link_port;
+	cmd->base.autoneg = phylink_test(txgbe->advertising, Autoneg) ?
+			    AUTONEG_ENABLE : AUTONEG_DISABLE;
+	linkmode_copy(cmd->link_modes.supported, txgbe->link_support);
+	linkmode_copy(cmd->link_modes.advertising, txgbe->advertising);
+
+	return 0;
+}
+
+static int txgbe_set_ringparam(struct net_device *netdev,
+			       struct ethtool_ringparam *ring,
+			       struct kernel_ethtool_ringparam *kernel_ring,
+			       struct netlink_ext_ack *extack)
+{
+	struct wx *wx = netdev_priv(netdev);
+	u32 new_rx_count, new_tx_count;
+	struct wx_ring *temp_ring;
+	int i, err = 0;
+
+	new_tx_count = clamp_t(u32, ring->tx_pending, WX_MIN_TXD, WX_MAX_TXD);
+	new_tx_count = ALIGN(new_tx_count, WX_REQ_TX_DESCRIPTOR_MULTIPLE);
+
+	new_rx_count = clamp_t(u32, ring->rx_pending, WX_MIN_RXD, WX_MAX_RXD);
+	new_rx_count = ALIGN(new_rx_count, WX_REQ_RX_DESCRIPTOR_MULTIPLE);
+
+	if (new_tx_count == wx->tx_ring_count &&
+	    new_rx_count == wx->rx_ring_count)
+		return 0;
+
+	mutex_lock(&wx->reset_lock);
+	set_bit(WX_STATE_RESETTING, wx->state);
+
+	if (!netif_running(wx->netdev)) {
+		for (i = 0; i < wx->num_tx_queues; i++)
+			wx->tx_ring[i]->count = new_tx_count;
+		for (i = 0; i < wx->num_rx_queues; i++)
+			wx->rx_ring[i]->count = new_rx_count;
+		wx->tx_ring_count = new_tx_count;
+		wx->rx_ring_count = new_rx_count;
+
+		goto clear_reset;
+	}
+
+	/* allocate temporary buffer to store rings in */
+	i = max_t(int, wx->num_tx_queues, wx->num_rx_queues);
+	temp_ring = kvmalloc_objs(struct wx_ring, i);
+	if (!temp_ring) {
+		err = -ENOMEM;
+		goto clear_reset;
+	}
+
+	txgbe_down(wx);
+
+	wx_set_ring(wx, new_tx_count, new_rx_count, temp_ring);
+	kvfree(temp_ring);
+
+	txgbe_up(wx);
+
+clear_reset:
+	clear_bit(WX_STATE_RESETTING, wx->state);
+	mutex_unlock(&wx->reset_lock);
+	return err;
+}
+
+static int txgbe_get_ethtool_fdir_entry(struct txgbe *txgbe,
+					struct ethtool_rxnfc *cmd)
+{
+	struct ethtool_rx_flow_spec *fsp =
+		(struct ethtool_rx_flow_spec *)&cmd->fs;
+	union txgbe_atr_input *mask = &txgbe->fdir_mask;
+	struct txgbe_fdir_filter *rule = NULL;
+	struct hlist_node *node;
+
+	/* report total rule count */
+	cmd->data = (1024 << TXGBE_FDIR_PBALLOC_64K) - 2;
+
+	hlist_for_each_entry_safe(rule, node, &txgbe->fdir_filter_list,
+				  fdir_node) {
+		if (fsp->location <= rule->sw_idx)
+			break;
+	}
+
+	if (!rule || fsp->location != rule->sw_idx)
+		return -EINVAL;
+
+	/* set flow type field */
+	switch (rule->filter.formatted.flow_type) {
+	case TXGBE_ATR_FLOW_TYPE_TCPV4:
+		fsp->flow_type = TCP_V4_FLOW;
+		break;
+	case TXGBE_ATR_FLOW_TYPE_UDPV4:
+		fsp->flow_type = UDP_V4_FLOW;
+		break;
+	case TXGBE_ATR_FLOW_TYPE_SCTPV4:
+		fsp->flow_type = SCTP_V4_FLOW;
+		break;
+	case TXGBE_ATR_FLOW_TYPE_IPV4:
+		fsp->flow_type = IP_USER_FLOW;
+		fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4;
+		fsp->h_u.usr_ip4_spec.proto = 0;
+		fsp->m_u.usr_ip4_spec.proto = 0;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	fsp->h_u.tcp_ip4_spec.psrc = rule->filter.formatted.src_port;
+	fsp->m_u.tcp_ip4_spec.psrc = mask->formatted.src_port;
+	fsp->h_u.tcp_ip4_spec.pdst = rule->filter.formatted.dst_port;
+	fsp->m_u.tcp_ip4_spec.pdst = mask->formatted.dst_port;
+	fsp->h_u.tcp_ip4_spec.ip4src = rule->filter.formatted.src_ip[0];
+	fsp->m_u.tcp_ip4_spec.ip4src = mask->formatted.src_ip[0];
+	fsp->h_u.tcp_ip4_spec.ip4dst = rule->filter.formatted.dst_ip[0];
+	fsp->m_u.tcp_ip4_spec.ip4dst = mask->formatted.dst_ip[0];
+	fsp->h_ext.vlan_etype = rule->filter.formatted.flex_bytes;
+	fsp->m_ext.vlan_etype = mask->formatted.flex_bytes;
+	fsp->h_ext.data[1] = htonl(rule->filter.formatted.vm_pool);
+	fsp->m_ext.data[1] = htonl(mask->formatted.vm_pool);
+	fsp->flow_type |= FLOW_EXT;
+
+	/* record action */
+	if (rule->action == TXGBE_RDB_FDIR_DROP_QUEUE)
+		fsp->ring_cookie = RX_CLS_FLOW_DISC;
+	else
+		fsp->ring_cookie = rule->action;
+
+	return 0;
+}
+
+static int txgbe_get_ethtool_fdir_all(struct txgbe *txgbe,
+				      struct ethtool_rxnfc *cmd,
+				      u32 *rule_locs)
+{
+	struct txgbe_fdir_filter *rule;
+	struct hlist_node *node;
+	int cnt = 0;
+
+	/* report total rule count */
+	cmd->data = (1024 << TXGBE_FDIR_PBALLOC_64K) - 2;
+
+	hlist_for_each_entry_safe(rule, node, &txgbe->fdir_filter_list,
+				  fdir_node) {
+		if (cnt == cmd->rule_cnt)
+			return -EMSGSIZE;
+		rule_locs[cnt] = rule->sw_idx;
+		cnt++;
+	}
+
+	cmd->rule_cnt = cnt;
+
+	return 0;
+}
+
+static u32 txgbe_get_rx_ring_count(struct net_device *dev)
+{
+	struct wx *wx = netdev_priv(dev);
+
+	return wx->num_rx_queues;
+}
+
+static int txgbe_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd,
+			   u32 *rule_locs)
+{
+	struct wx *wx = netdev_priv(dev);
+	struct txgbe *txgbe = wx->priv;
+	int ret = -EOPNOTSUPP;
+
+	switch (cmd->cmd) {
+	case ETHTOOL_GRXCLSRLCNT:
+		cmd->rule_cnt = txgbe->fdir_filter_count;
+		ret = 0;
+		break;
+	case ETHTOOL_GRXCLSRULE:
+		ret = txgbe_get_ethtool_fdir_entry(txgbe, cmd);
+		break;
+	case ETHTOOL_GRXCLSRLALL:
+		ret = txgbe_get_ethtool_fdir_all(txgbe, cmd, (u32 *)rule_locs);
+		break;
+	default:
+		break;
+	}
+
+	return ret;
+}
+
+static int txgbe_flowspec_to_flow_type(struct ethtool_rx_flow_spec *fsp,
+				       u8 *flow_type)
+{
+	switch (fsp->flow_type & ~FLOW_EXT) {
+	case TCP_V4_FLOW:
+		*flow_type = TXGBE_ATR_FLOW_TYPE_TCPV4;
+		break;
+	case UDP_V4_FLOW:
+		*flow_type = TXGBE_ATR_FLOW_TYPE_UDPV4;
+		break;
+	case SCTP_V4_FLOW:
+		*flow_type = TXGBE_ATR_FLOW_TYPE_SCTPV4;
+		break;
+	case IP_USER_FLOW:
+		switch (fsp->h_u.usr_ip4_spec.proto) {
+		case IPPROTO_TCP:
+			*flow_type = TXGBE_ATR_FLOW_TYPE_TCPV4;
+			break;
+		case IPPROTO_UDP:
+			*flow_type = TXGBE_ATR_FLOW_TYPE_UDPV4;
+			break;
+		case IPPROTO_SCTP:
+			*flow_type = TXGBE_ATR_FLOW_TYPE_SCTPV4;
+			break;
+		case 0:
+			if (!fsp->m_u.usr_ip4_spec.proto) {
+				*flow_type = TXGBE_ATR_FLOW_TYPE_IPV4;
+				break;
+			}
+			fallthrough;
+		default:
+			return -EINVAL;
+		}
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static bool txgbe_match_ethtool_fdir_entry(struct txgbe *txgbe,
+					   struct txgbe_fdir_filter *input)
+{
+	struct txgbe_fdir_filter *rule = NULL;
+	struct hlist_node *node2;
+
+	hlist_for_each_entry_safe(rule, node2, &txgbe->fdir_filter_list,
+				  fdir_node) {
+		if (rule->filter.formatted.bkt_hash ==
+		    input->filter.formatted.bkt_hash &&
+		    rule->action == input->action) {
+			wx_dbg(txgbe->wx, "FDIR entry already exist\n");
+			return true;
+		}
+	}
+	return false;
+}
+
+static int txgbe_update_ethtool_fdir_entry(struct txgbe *txgbe,
+					   struct txgbe_fdir_filter *input,
+					   u16 sw_idx)
+{
+	struct hlist_node *node = NULL, *parent = NULL;
+	struct txgbe_fdir_filter *rule;
+	struct wx *wx = txgbe->wx;
+	bool deleted = false;
+	int err;
+
+	hlist_for_each_entry_safe(rule, node, &txgbe->fdir_filter_list,
+				  fdir_node) {
+		/* hash found, or no matching entry */
+		if (rule->sw_idx >= sw_idx)
+			break;
+		parent = node;
+	}
+
+	/* if there is an old rule occupying our place remove it */
+	if (rule && rule->sw_idx == sw_idx) {
+		/* hardware filters are only configured when interface is up,
+		 * and we should not issue filter commands while the interface
+		 * is down
+		 */
+		if (netif_running(wx->netdev) &&
+		    (!input || rule->filter.formatted.bkt_hash !=
+		     input->filter.formatted.bkt_hash)) {
+			err = txgbe_fdir_erase_perfect_filter(wx,
+							      &rule->filter,
+							      sw_idx);
+			if (err)
+				return -EINVAL;
+		}
+
+		hlist_del(&rule->fdir_node);
+		kfree(rule);
+		txgbe->fdir_filter_count--;
+		deleted = true;
+	}
+
+	/* If we weren't given an input, then this was a request to delete a
+	 * filter. We should return -EINVAL if the filter wasn't found, but
+	 * return 0 if the rule was successfully deleted.
+	 */
+	if (!input)
+		return deleted ? 0 : -EINVAL;
+
+	/* initialize node and set software index */
+	INIT_HLIST_NODE(&input->fdir_node);
+
+	/* add filter to the list */
+	if (parent)
+		hlist_add_behind(&input->fdir_node, parent);
+	else
+		hlist_add_head(&input->fdir_node,
+			       &txgbe->fdir_filter_list);
+
+	/* update counts */
+	txgbe->fdir_filter_count++;
+
+	return 0;
+}
+
+static int txgbe_add_ethtool_fdir_entry(struct txgbe *txgbe,
+					struct ethtool_rxnfc *cmd)
+{
+	struct ethtool_rx_flow_spec *fsp =
+		(struct ethtool_rx_flow_spec *)&cmd->fs;
+	struct txgbe_fdir_filter *input;
+	union txgbe_atr_input mask;
+	struct wx *wx = txgbe->wx;
+	int err = -EINVAL;
+	u16 ptype = 0;
+	u8 queue;
+
+	if (!(test_bit(WX_FLAG_FDIR_PERFECT, wx->flags)))
+		return -EOPNOTSUPP;
+
+	/* ring_cookie is a masked into a set of queues and txgbe pools or
+	 * we use drop index
+	 */
+	if (fsp->ring_cookie == RX_CLS_FLOW_DISC) {
+		queue = TXGBE_RDB_FDIR_DROP_QUEUE;
+	} else {
+		u32 ring = ethtool_get_flow_spec_ring(fsp->ring_cookie);
+		u8 vf = ethtool_get_flow_spec_ring_vf(fsp->ring_cookie);
+
+		if (!vf && ring >= wx->num_rx_queues)
+			return -EINVAL;
+		else if (vf && (vf > wx->num_vfs ||
+				ring >= wx->num_rx_queues_per_pool))
+			return -EINVAL;
+
+		/* Map the ring onto the absolute queue index */
+		if (!vf)
+			queue = wx->rx_ring[ring]->reg_idx;
+		else
+			queue = ((vf - 1) * wx->num_rx_queues_per_pool) + ring;
+	}
+
+	/* Don't allow indexes to exist outside of available space */
+	if (fsp->location >= ((1024 << TXGBE_FDIR_PBALLOC_64K) - 2)) {
+		wx_err(wx, "Location out of range\n");
+		return -EINVAL;
+	}
+
+	input = kzalloc_obj(*input, GFP_ATOMIC);
+	if (!input)
+		return -ENOMEM;
+
+	memset(&mask, 0, sizeof(union txgbe_atr_input));
+
+	/* set SW index */
+	input->sw_idx = fsp->location;
+
+	/* record flow type */
+	if (txgbe_flowspec_to_flow_type(fsp,
+					&input->filter.formatted.flow_type)) {
+		wx_err(wx, "Unrecognized flow type\n");
+		goto err_out;
+	}
+
+	mask.formatted.flow_type = TXGBE_ATR_L4TYPE_IPV6_MASK |
+				   TXGBE_ATR_L4TYPE_MASK;
+
+	if (input->filter.formatted.flow_type == TXGBE_ATR_FLOW_TYPE_IPV4)
+		mask.formatted.flow_type &= TXGBE_ATR_L4TYPE_IPV6_MASK;
+
+	/* Copy input into formatted structures */
+	input->filter.formatted.src_ip[0] = fsp->h_u.tcp_ip4_spec.ip4src;
+	mask.formatted.src_ip[0] = fsp->m_u.tcp_ip4_spec.ip4src;
+	input->filter.formatted.dst_ip[0] = fsp->h_u.tcp_ip4_spec.ip4dst;
+	mask.formatted.dst_ip[0] = fsp->m_u.tcp_ip4_spec.ip4dst;
+	input->filter.formatted.src_port = fsp->h_u.tcp_ip4_spec.psrc;
+	mask.formatted.src_port = fsp->m_u.tcp_ip4_spec.psrc;
+	input->filter.formatted.dst_port = fsp->h_u.tcp_ip4_spec.pdst;
+	mask.formatted.dst_port = fsp->m_u.tcp_ip4_spec.pdst;
+
+	if (fsp->flow_type & FLOW_EXT) {
+		input->filter.formatted.vm_pool =
+				(unsigned char)ntohl(fsp->h_ext.data[1]);
+		mask.formatted.vm_pool =
+				(unsigned char)ntohl(fsp->m_ext.data[1]);
+		input->filter.formatted.flex_bytes =
+						fsp->h_ext.vlan_etype;
+		mask.formatted.flex_bytes = fsp->m_ext.vlan_etype;
+	}
+
+	switch (input->filter.formatted.flow_type) {
+	case TXGBE_ATR_FLOW_TYPE_TCPV4:
+		ptype = WX_PTYPE_L2_IPV4_TCP;
+		break;
+	case TXGBE_ATR_FLOW_TYPE_UDPV4:
+		ptype = WX_PTYPE_L2_IPV4_UDP;
+		break;
+	case TXGBE_ATR_FLOW_TYPE_SCTPV4:
+		ptype = WX_PTYPE_L2_IPV4_SCTP;
+		break;
+	case TXGBE_ATR_FLOW_TYPE_IPV4:
+		ptype = WX_PTYPE_L2_IPV4;
+		break;
+	default:
+		break;
+	}
+
+	input->filter.formatted.vlan_id = htons(ptype);
+	if (mask.formatted.flow_type & TXGBE_ATR_L4TYPE_MASK)
+		mask.formatted.vlan_id = htons(0xFFFF);
+	else
+		mask.formatted.vlan_id = htons(0xFFF8);
+
+	/* determine if we need to drop or route the packet */
+	if (fsp->ring_cookie == RX_CLS_FLOW_DISC)
+		input->action = TXGBE_RDB_FDIR_DROP_QUEUE;
+	else
+		input->action = fsp->ring_cookie;
+
+	spin_lock(&txgbe->fdir_perfect_lock);
+
+	if (hlist_empty(&txgbe->fdir_filter_list)) {
+		/* save mask and program input mask into HW */
+		memcpy(&txgbe->fdir_mask, &mask, sizeof(mask));
+		err = txgbe_fdir_set_input_mask(wx, &mask);
+		if (err)
+			goto err_unlock;
+	} else if (memcmp(&txgbe->fdir_mask, &mask, sizeof(mask))) {
+		wx_err(wx, "Hardware only supports one mask per port. To change the mask you must first delete all the rules.\n");
+		goto err_unlock;
+	}
+
+	/* apply mask and compute/store hash */
+	txgbe_atr_compute_perfect_hash(&input->filter, &mask);
+
+	/* check if new entry does not exist on filter list */
+	if (txgbe_match_ethtool_fdir_entry(txgbe, input))
+		goto err_unlock;
+
+	/* only program filters to hardware if the net device is running, as
+	 * we store the filters in the Rx buffer which is not allocated when
+	 * the device is down
+	 */
+	if (netif_running(wx->netdev)) {
+		err = txgbe_fdir_write_perfect_filter(wx, &input->filter,
+						      input->sw_idx, queue);
+		if (err)
+			goto err_unlock;
+	}
+
+	txgbe_update_ethtool_fdir_entry(txgbe, input, input->sw_idx);
+
+	spin_unlock(&txgbe->fdir_perfect_lock);
+
+	return 0;
+err_unlock:
+	spin_unlock(&txgbe->fdir_perfect_lock);
+err_out:
+	kfree(input);
+	return err;
+}
+
+static int txgbe_del_ethtool_fdir_entry(struct txgbe *txgbe,
+					struct ethtool_rxnfc *cmd)
+{
+	struct ethtool_rx_flow_spec *fsp =
+		(struct ethtool_rx_flow_spec *)&cmd->fs;
+	int err = 0;
+
+	spin_lock(&txgbe->fdir_perfect_lock);
+	err = txgbe_update_ethtool_fdir_entry(txgbe, NULL, fsp->location);
+	spin_unlock(&txgbe->fdir_perfect_lock);
+
+	return err;
+}
+
+static int txgbe_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd)
+{
+	struct wx *wx = netdev_priv(dev);
+	struct txgbe *txgbe = wx->priv;
+	int ret = -EOPNOTSUPP;
+
+	switch (cmd->cmd) {
+	case ETHTOOL_SRXCLSRLINS:
+		ret = txgbe_add_ethtool_fdir_entry(txgbe, cmd);
+		break;
+	case ETHTOOL_SRXCLSRLDEL:
+		ret = txgbe_del_ethtool_fdir_entry(txgbe, cmd);
+		break;
+	default:
+		break;
+	}
+
+	return ret;
+}
+
+static int
+txgbe_get_module_eeprom_by_page(struct net_device *netdev,
+				const struct ethtool_module_eeprom *page_data,
+				struct netlink_ext_ack *extack)
+{
+	struct wx *wx = netdev_priv(netdev);
+	struct txgbe_hic_i2c_read buffer;
+	int err;
+
+	if (!test_bit(WX_FLAG_SWFW_RING, wx->flags))
+		return -EOPNOTSUPP;
+
+	buffer.length = cpu_to_be32(page_data->length);
+	buffer.offset = cpu_to_be32(page_data->offset);
+	buffer.page = page_data->page;
+	buffer.bank = page_data->bank;
+	buffer.i2c_address = page_data->i2c_address;
+
+	err = txgbe_read_eeprom_hostif(wx, &buffer, page_data->length,
+				       page_data->data);
+	if (err) {
+		wx_err(wx, "Failed to read module EEPROM\n");
+		return err;
+	}
+
+	return page_data->length;
+}
+
+static const struct ethtool_ops txgbe_ethtool_ops = {
+	.supported_coalesce_params = ETHTOOL_COALESCE_USECS |
+				     ETHTOOL_COALESCE_TX_MAX_FRAMES_IRQ |
+				     ETHTOOL_COALESCE_USE_ADAPTIVE,
+	.get_drvinfo		= wx_get_drvinfo,
+	.nway_reset		= wx_nway_reset,
+	.get_link		= ethtool_op_get_link,
+	.get_link_ksettings	= txgbe_get_link_ksettings,
+	.set_link_ksettings	= wx_set_link_ksettings,
+	.get_sset_count		= wx_get_sset_count,
+	.get_strings		= wx_get_strings,
+	.get_ethtool_stats	= wx_get_ethtool_stats,
+	.get_eth_mac_stats	= wx_get_mac_stats,
+	.get_pause_stats	= wx_get_pause_stats,
+	.get_pauseparam		= wx_get_pauseparam,
+	.set_pauseparam		= wx_set_pauseparam,
+	.get_ringparam		= wx_get_ringparam,
+	.set_ringparam		= txgbe_set_ringparam,
+	.get_coalesce		= wx_get_coalesce,
+	.set_coalesce		= wx_set_coalesce,
+	.get_channels		= wx_get_channels,
+	.set_channels		= wx_set_channels,
+	.get_rxnfc		= txgbe_get_rxnfc,
+	.set_rxnfc		= txgbe_set_rxnfc,
+	.get_rx_ring_count	= txgbe_get_rx_ring_count,
+	.get_rxfh_fields	= wx_get_rxfh_fields,
+	.set_rxfh_fields	= wx_set_rxfh_fields,
+	.get_rxfh_indir_size	= wx_rss_indir_size,
+	.get_rxfh_key_size	= wx_get_rxfh_key_size,
+	.get_rxfh		= wx_get_rxfh,
+	.set_rxfh		= wx_set_rxfh,
+	.get_msglevel		= wx_get_msglevel,
+	.set_msglevel		= wx_set_msglevel,
+	.get_ts_info		= wx_get_ts_info,
+	.get_ts_stats		= wx_get_ptp_stats,
+	.get_module_eeprom_by_page	= txgbe_get_module_eeprom_by_page,
+};
+
+void txgbe_set_ethtool_ops(struct net_device *netdev)
+{
+	netdev->ethtool_ops = &txgbe_ethtool_ops;
+}

linux-7.2.3/drivers/net/ethernet/wangxun/txgbe/txgbe_ethtool.h

@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2015 - 2023 Beijing WangXun Technology Co., Ltd. */
+
+#ifndef _TXGBE_ETHTOOL_H_
+#define _TXGBE_ETHTOOL_H_
+
+int txgbe_get_link_ksettings(struct net_device *netdev,
+			     struct ethtool_link_ksettings *cmd);
+void txgbe_set_ethtool_ops(struct net_device *netdev);
+
+#endif /* _TXGBE_ETHTOOL_H_ */

linux-7.2.3/drivers/net/ethernet/wangxun/txgbe/txgbe_fdir.c

@@ -0,0 +1,648 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2015 - 2024 Beijing WangXun Technology Co., Ltd. */
+
+#include <linux/string.h>
+#include <linux/types.h>
+#include <linux/pci.h>
+
+#include "../libwx/wx_type.h"
+#include "../libwx/wx_lib.h"
+#include "../libwx/wx_hw.h"
+#include "txgbe_type.h"
+#include "txgbe_fdir.h"
+
+/* These defines allow us to quickly generate all of the necessary instructions
+ * in the function below by simply calling out TXGBE_COMPUTE_SIG_HASH_ITERATION
+ * for values 0 through 15
+ */
+#define TXGBE_ATR_COMMON_HASH_KEY \
+		(TXGBE_ATR_BUCKET_HASH_KEY & TXGBE_ATR_SIGNATURE_HASH_KEY)
+#define TXGBE_COMPUTE_SIG_HASH_ITERATION(_n) \
+do { \
+	u32 n = (_n); \
+	if (TXGBE_ATR_COMMON_HASH_KEY & (0x01 << n)) \
+		common_hash ^= lo_hash_dword >> n; \
+	else if (TXGBE_ATR_BUCKET_HASH_KEY & (0x01 << n)) \
+		bucket_hash ^= lo_hash_dword >> n; \
+	else if (TXGBE_ATR_SIGNATURE_HASH_KEY & (0x01 << n)) \
+		sig_hash ^= lo_hash_dword << (16 - n); \
+	if (TXGBE_ATR_COMMON_HASH_KEY & (0x01 << (n + 16))) \
+		common_hash ^= hi_hash_dword >> n; \
+	else if (TXGBE_ATR_BUCKET_HASH_KEY & (0x01 << (n + 16))) \
+		bucket_hash ^= hi_hash_dword >> n; \
+	else if (TXGBE_ATR_SIGNATURE_HASH_KEY & (0x01 << (n + 16))) \
+		sig_hash ^= hi_hash_dword << (16 - n); \
+} while (0)
+
+/**
+ *  txgbe_atr_compute_sig_hash - Compute the signature hash
+ *  @input: input bitstream to compute the hash on
+ *  @common: compressed common input dword
+ *  @hash: pointer to the computed hash
+ *
+ *  This function is almost identical to the function above but contains
+ *  several optimizations such as unwinding all of the loops, letting the
+ *  compiler work out all of the conditional ifs since the keys are static
+ *  defines, and computing two keys at once since the hashed dword stream
+ *  will be the same for both keys.
+ **/
+static void txgbe_atr_compute_sig_hash(union txgbe_atr_hash_dword input,
+				       union txgbe_atr_hash_dword common,
+				       u32 *hash)
+{
+	u32 sig_hash = 0, bucket_hash = 0, common_hash = 0;
+	u32 hi_hash_dword, lo_hash_dword, flow_vm_vlan;
+	u32 i;
+
+	/* record the flow_vm_vlan bits as they are a key part to the hash */
+	flow_vm_vlan = ntohl(input.dword);
+
+	/* generate common hash dword */
+	hi_hash_dword = ntohl(common.dword);
+
+	/* low dword is word swapped version of common */
+	lo_hash_dword = (hi_hash_dword >> 16) | (hi_hash_dword << 16);
+
+	/* apply flow ID/VM pool/VLAN ID bits to hash words */
+	hi_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan >> 16);
+
+	/* Process bits 0 and 16 */
+	TXGBE_COMPUTE_SIG_HASH_ITERATION(0);
+
+	/* apply flow ID/VM pool/VLAN ID bits to lo hash dword, we had to
+	 * delay this because bit 0 of the stream should not be processed
+	 * so we do not add the VLAN until after bit 0 was processed
+	 */
+	lo_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan << 16);
+
+	/* Process remaining 30 bit of the key */
+	for (i = 1; i <= 15; i++)
+		TXGBE_COMPUTE_SIG_HASH_ITERATION(i);
+
+	/* combine common_hash result with signature and bucket hashes */
+	bucket_hash ^= common_hash;
+	bucket_hash &= TXGBE_ATR_HASH_MASK;
+
+	sig_hash ^= common_hash << 16;
+	sig_hash &= TXGBE_ATR_HASH_MASK << 16;
+
+	/* return completed signature hash */
+	*hash = sig_hash ^ bucket_hash;
+}
+
+#define TXGBE_COMPUTE_BKT_HASH_ITERATION(_n) \
+do { \
+	u32 n = (_n); \
+	if (TXGBE_ATR_BUCKET_HASH_KEY & (0x01 << n)) \
+		bucket_hash ^= lo_hash_dword >> n; \
+	if (TXGBE_ATR_BUCKET_HASH_KEY & (0x01 << (n + 16))) \
+		bucket_hash ^= hi_hash_dword >> n; \
+} while (0)
+
+/**
+ *  txgbe_atr_compute_perfect_hash - Compute the perfect filter hash
+ *  @input: input bitstream to compute the hash on
+ *  @input_mask: mask for the input bitstream
+ *
+ *  This function serves two main purposes.  First it applies the input_mask
+ *  to the atr_input resulting in a cleaned up atr_input data stream.
+ *  Secondly it computes the hash and stores it in the bkt_hash field at
+ *  the end of the input byte stream.  This way it will be available for
+ *  future use without needing to recompute the hash.
+ **/
+void txgbe_atr_compute_perfect_hash(union txgbe_atr_input *input,
+				    union txgbe_atr_input *input_mask)
+{
+	u32 hi_hash_dword, lo_hash_dword, flow_vm_vlan;
+	u32 bucket_hash = 0;
+	__be32 hi_dword = 0;
+	u32 i = 0;
+
+	/* Apply masks to input data */
+	for (i = 0; i < 11; i++)
+		input->dword_stream[i] &= input_mask->dword_stream[i];
+
+	/* record the flow_vm_vlan bits as they are a key part to the hash */
+	flow_vm_vlan = ntohl(input->dword_stream[0]);
+
+	/* generate common hash dword */
+	for (i = 1; i <= 10; i++)
+		hi_dword ^= input->dword_stream[i];
+	hi_hash_dword = ntohl(hi_dword);
+
+	/* low dword is word swapped version of common */
+	lo_hash_dword = (hi_hash_dword >> 16) | (hi_hash_dword << 16);
+
+	/* apply flow ID/VM pool/VLAN ID bits to hash words */
+	hi_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan >> 16);
+
+	/* Process bits 0 and 16 */
+	TXGBE_COMPUTE_BKT_HASH_ITERATION(0);
+
+	/* apply flow ID/VM pool/VLAN ID bits to lo hash dword, we had to
+	 * delay this because bit 0 of the stream should not be processed
+	 * so we do not add the VLAN until after bit 0 was processed
+	 */
+	lo_hash_dword ^= flow_vm_vlan ^ (flow_vm_vlan << 16);
+
+	/* Process remaining 30 bit of the key */
+	for (i = 1; i <= 15; i++)
+		TXGBE_COMPUTE_BKT_HASH_ITERATION(i);
+
+	/* Limit hash to 13 bits since max bucket count is 8K.
+	 * Store result at the end of the input stream.
+	 */
+	input->formatted.bkt_hash = (__force __be16)(bucket_hash & 0x1FFF);
+}
+
+static int txgbe_fdir_check_cmd_complete(struct wx *wx)
+{
+	u32 val;
+
+	return read_poll_timeout_atomic(rd32, val,
+					!(val & TXGBE_RDB_FDIR_CMD_CMD_MASK),
+					10, 100, false,
+					wx, TXGBE_RDB_FDIR_CMD);
+}
+
+/**
+ *  txgbe_fdir_add_signature_filter - Adds a signature hash filter
+ *  @wx: pointer to hardware structure
+ *  @input: unique input dword
+ *  @common: compressed common input dword
+ *  @queue: queue index to direct traffic to
+ *
+ *  @return: 0 on success and negative on failure
+ **/
+static int txgbe_fdir_add_signature_filter(struct wx *wx,
+					   union txgbe_atr_hash_dword input,
+					   union txgbe_atr_hash_dword common,
+					   u8 queue)
+{
+	u32 fdirhashcmd, fdircmd;
+	u8 flow_type;
+	int err;
+
+	/* Get the flow_type in order to program FDIRCMD properly
+	 * lowest 2 bits are FDIRCMD.L4TYPE, third lowest bit is FDIRCMD.IPV6
+	 * fifth is FDIRCMD.TUNNEL_FILTER
+	 */
+	flow_type = input.formatted.flow_type;
+	switch (flow_type) {
+	case TXGBE_ATR_FLOW_TYPE_TCPV4:
+	case TXGBE_ATR_FLOW_TYPE_UDPV4:
+	case TXGBE_ATR_FLOW_TYPE_SCTPV4:
+	case TXGBE_ATR_FLOW_TYPE_TCPV6:
+	case TXGBE_ATR_FLOW_TYPE_UDPV6:
+	case TXGBE_ATR_FLOW_TYPE_SCTPV6:
+		break;
+	default:
+		wx_err(wx, "Error on flow type input\n");
+		return -EINVAL;
+	}
+
+	/* configure FDIRCMD register */
+	fdircmd = TXGBE_RDB_FDIR_CMD_CMD_ADD_FLOW |
+		  TXGBE_RDB_FDIR_CMD_FILTER_UPDATE |
+		  TXGBE_RDB_FDIR_CMD_LAST | TXGBE_RDB_FDIR_CMD_QUEUE_EN;
+	fdircmd |= TXGBE_RDB_FDIR_CMD_FLOW_TYPE(flow_type);
+	fdircmd |= TXGBE_RDB_FDIR_CMD_RX_QUEUE(queue);
+
+	txgbe_atr_compute_sig_hash(input, common, &fdirhashcmd);
+	fdirhashcmd |= TXGBE_RDB_FDIR_HASH_BUCKET_VALID;
+	wr32(wx, TXGBE_RDB_FDIR_HASH, fdirhashcmd);
+	wr32(wx, TXGBE_RDB_FDIR_CMD, fdircmd);
+
+	wx_dbg(wx, "Tx Queue=%x hash=%x\n", queue, (u32)fdirhashcmd);
+
+	err = txgbe_fdir_check_cmd_complete(wx);
+	if (err)
+		wx_err(wx, "Flow Director command did not complete!\n");
+
+	return err;
+}
+
+void txgbe_atr(struct wx_ring *ring, struct wx_tx_buffer *first, u8 ptype)
+{
+	union txgbe_atr_hash_dword common = { .dword = 0 };
+	union txgbe_atr_hash_dword input = { .dword = 0 };
+	struct wx_q_vector *q_vector = ring->q_vector;
+	struct wx_dec_ptype dptype;
+	union network_header {
+		struct ipv6hdr *ipv6;
+		struct iphdr *ipv4;
+		void *raw;
+	} hdr;
+	struct tcphdr *th;
+
+	/* if ring doesn't have a interrupt vector, cannot perform ATR */
+	if (!q_vector)
+		return;
+
+	ring->atr_count++;
+	dptype = wx_decode_ptype(ptype);
+	if (dptype.etype) {
+		if (WX_PTYPE_TYPL4(ptype) != WX_PTYPE_TYP_TCP)
+			return;
+		hdr.raw = (void *)skb_inner_network_header(first->skb);
+		th = inner_tcp_hdr(first->skb);
+	} else {
+		if (WX_PTYPE_PKT(ptype) != WX_PTYPE_PKT_IP ||
+		    WX_PTYPE_TYPL4(ptype) != WX_PTYPE_TYP_TCP)
+			return;
+		hdr.raw = (void *)skb_network_header(first->skb);
+		th = tcp_hdr(first->skb);
+	}
+
+	/* skip this packet since it is invalid or the socket is closing */
+	if (!th || th->fin)
+		return;
+
+	/* sample on all syn packets or once every atr sample count */
+	if (!th->syn && ring->atr_count < ring->atr_sample_rate)
+		return;
+
+	/* reset sample count */
+	ring->atr_count = 0;
+
+	/* src and dst are inverted, think how the receiver sees them
+	 *
+	 * The input is broken into two sections, a non-compressed section
+	 * containing vm_pool, vlan_id, and flow_type.  The rest of the data
+	 * is XORed together and stored in the compressed dword.
+	 */
+	input.formatted.vlan_id = htons((u16)ptype);
+
+	/* since src port and flex bytes occupy the same word XOR them together
+	 * and write the value to source port portion of compressed dword
+	 */
+	if (first->tx_flags & WX_TX_FLAGS_SW_VLAN)
+		common.port.src ^= th->dest ^ first->skb->protocol;
+	else if (first->tx_flags & WX_TX_FLAGS_HW_VLAN)
+		common.port.src ^= th->dest ^ first->skb->vlan_proto;
+	else
+		common.port.src ^= th->dest ^ first->protocol;
+	common.port.dst ^= th->source;
+
+	if (WX_PTYPE_PKT_IPV6 & WX_PTYPE_PKT(ptype)) {
+		input.formatted.flow_type = TXGBE_ATR_FLOW_TYPE_TCPV6;
+		common.ip ^= hdr.ipv6->saddr.s6_addr32[0] ^
+					 hdr.ipv6->saddr.s6_addr32[1] ^
+					 hdr.ipv6->saddr.s6_addr32[2] ^
+					 hdr.ipv6->saddr.s6_addr32[3] ^
+					 hdr.ipv6->daddr.s6_addr32[0] ^
+					 hdr.ipv6->daddr.s6_addr32[1] ^
+					 hdr.ipv6->daddr.s6_addr32[2] ^
+					 hdr.ipv6->daddr.s6_addr32[3];
+	} else {
+		input.formatted.flow_type = TXGBE_ATR_FLOW_TYPE_TCPV4;
+		common.ip ^= hdr.ipv4->saddr ^ hdr.ipv4->daddr;
+	}
+
+	/* This assumes the Rx queue and Tx queue are bound to the same CPU */
+	txgbe_fdir_add_signature_filter(q_vector->wx, input, common,
+					ring->queue_index);
+}
+
+int txgbe_fdir_set_input_mask(struct wx *wx, union txgbe_atr_input *input_mask)
+{
+	u32 fdirm = 0, fdirtcpm = 0, flex = 0;
+	int index, offset;
+
+	/* Program the relevant mask registers. If src/dst_port or src/dst_addr
+	 * are zero, then assume a full mask for that field.  Also assume that
+	 * a VLAN of 0 is unspecified, so mask that out as well.  L4type
+	 * cannot be masked out in this implementation.
+	 *
+	 * This also assumes IPv4 only.  IPv6 masking isn't supported at this
+	 * point in time.
+	 */
+
+	/* verify bucket hash is cleared on hash generation */
+	if (input_mask->formatted.bkt_hash)
+		wx_dbg(wx, "bucket hash should always be 0 in mask\n");
+
+	/* Program FDIRM and verify partial masks */
+	switch (input_mask->formatted.vm_pool & 0x7F) {
+	case 0x0:
+		fdirm |= TXGBE_RDB_FDIR_OTHER_MSK_POOL;
+		break;
+	case 0x7F:
+		break;
+	default:
+		wx_err(wx, "Error on vm pool mask\n");
+		return -EINVAL;
+	}
+
+	switch (input_mask->formatted.flow_type & TXGBE_ATR_L4TYPE_MASK) {
+	case 0x0:
+		fdirm |= TXGBE_RDB_FDIR_OTHER_MSK_L4P;
+		if (input_mask->formatted.dst_port ||
+		    input_mask->formatted.src_port) {
+			wx_err(wx, "Error on src/dst port mask\n");
+			return -EINVAL;
+		}
+		break;
+	case TXGBE_ATR_L4TYPE_MASK:
+		break;
+	default:
+		wx_err(wx, "Error on flow type mask\n");
+		return -EINVAL;
+	}
+
+	/* Now mask VM pool and destination IPv6 - bits 5 and 2 */
+	wr32(wx, TXGBE_RDB_FDIR_OTHER_MSK, fdirm);
+
+	index = VMDQ_P(0) / 4;
+	offset = VMDQ_P(0) % 4;
+	flex = rd32(wx, TXGBE_RDB_FDIR_FLEX_CFG(index));
+	flex &= ~(TXGBE_RDB_FDIR_FLEX_CFG_FIELD0 << (offset * 8));
+	flex |= (TXGBE_RDB_FDIR_FLEX_CFG_BASE_MAC |
+		 TXGBE_RDB_FDIR_FLEX_CFG_OFST(0x6)) << (offset * 8);
+
+	switch ((__force u16)input_mask->formatted.flex_bytes & 0xFFFF) {
+	case 0x0000:
+		/* Mask Flex Bytes */
+		flex |= TXGBE_RDB_FDIR_FLEX_CFG_MSK << (offset * 8);
+		break;
+	case 0xFFFF:
+		break;
+	default:
+		wx_err(wx, "Error on flexible byte mask\n");
+		return -EINVAL;
+	}
+	wr32(wx, TXGBE_RDB_FDIR_FLEX_CFG(index), flex);
+
+	/* store the TCP/UDP port masks, bit reversed from port layout */
+	fdirtcpm = ntohs(input_mask->formatted.dst_port);
+	fdirtcpm <<= TXGBE_RDB_FDIR_PORT_DESTINATION_SHIFT;
+	fdirtcpm |= ntohs(input_mask->formatted.src_port);
+
+	/* write both the same so that UDP and TCP use the same mask */
+	wr32(wx, TXGBE_RDB_FDIR_TCP_MSK, ~fdirtcpm);
+	wr32(wx, TXGBE_RDB_FDIR_UDP_MSK, ~fdirtcpm);
+	wr32(wx, TXGBE_RDB_FDIR_SCTP_MSK, ~fdirtcpm);
+
+	/* store source and destination IP masks (little-enian) */
+	wr32(wx, TXGBE_RDB_FDIR_SA4_MSK,
+	     ntohl(~input_mask->formatted.src_ip[0]));
+	wr32(wx, TXGBE_RDB_FDIR_DA4_MSK,
+	     ntohl(~input_mask->formatted.dst_ip[0]));
+
+	return 0;
+}
+
+int txgbe_fdir_write_perfect_filter(struct wx *wx,
+				    union txgbe_atr_input *input,
+				    u16 soft_id, u8 queue)
+{
+	u32 fdirport, fdirvlan, fdirhash, fdircmd;
+	int err = 0;
+
+	/* currently IPv6 is not supported, must be programmed with 0 */
+	wr32(wx, TXGBE_RDB_FDIR_IP6(2), ntohl(input->formatted.src_ip[0]));
+	wr32(wx, TXGBE_RDB_FDIR_IP6(1), ntohl(input->formatted.src_ip[1]));
+	wr32(wx, TXGBE_RDB_FDIR_IP6(0), ntohl(input->formatted.src_ip[2]));
+
+	/* record the source address (little-endian) */
+	wr32(wx, TXGBE_RDB_FDIR_SA, ntohl(input->formatted.src_ip[0]));
+
+	/* record the first 32 bits of the destination address
+	 * (little-endian)
+	 */
+	wr32(wx, TXGBE_RDB_FDIR_DA, ntohl(input->formatted.dst_ip[0]));
+
+	/* record source and destination port (little-endian)*/
+	fdirport = ntohs(input->formatted.dst_port);
+	fdirport <<= TXGBE_RDB_FDIR_PORT_DESTINATION_SHIFT;
+	fdirport |= ntohs(input->formatted.src_port);
+	wr32(wx, TXGBE_RDB_FDIR_PORT, fdirport);
+
+	/* record packet type and flex_bytes (little-endian) */
+	fdirvlan = ntohs(input->formatted.flex_bytes);
+	fdirvlan <<= TXGBE_RDB_FDIR_FLEX_FLEX_SHIFT;
+	fdirvlan |= ntohs(input->formatted.vlan_id);
+	wr32(wx, TXGBE_RDB_FDIR_FLEX, fdirvlan);
+
+	/* configure FDIRHASH register */
+	fdirhash = (__force u32)input->formatted.bkt_hash |
+		   TXGBE_RDB_FDIR_HASH_BUCKET_VALID |
+		   TXGBE_RDB_FDIR_HASH_SIG_SW_INDEX(soft_id);
+	wr32(wx, TXGBE_RDB_FDIR_HASH, fdirhash);
+
+	/* flush all previous writes to make certain registers are
+	 * programmed prior to issuing the command
+	 */
+	WX_WRITE_FLUSH(wx);
+
+	/* configure FDIRCMD register */
+	fdircmd = TXGBE_RDB_FDIR_CMD_CMD_ADD_FLOW |
+		  TXGBE_RDB_FDIR_CMD_FILTER_UPDATE |
+		  TXGBE_RDB_FDIR_CMD_LAST | TXGBE_RDB_FDIR_CMD_QUEUE_EN;
+	if (queue == TXGBE_RDB_FDIR_DROP_QUEUE)
+		fdircmd |= TXGBE_RDB_FDIR_CMD_DROP;
+	fdircmd |= TXGBE_RDB_FDIR_CMD_FLOW_TYPE(input->formatted.flow_type);
+	fdircmd |= TXGBE_RDB_FDIR_CMD_RX_QUEUE(queue);
+	fdircmd |= TXGBE_RDB_FDIR_CMD_VT_POOL(input->formatted.vm_pool);
+
+	wr32(wx, TXGBE_RDB_FDIR_CMD, fdircmd);
+	err = txgbe_fdir_check_cmd_complete(wx);
+	if (err)
+		wx_err(wx, "Flow Director command did not complete!\n");
+
+	return err;
+}
+
+int txgbe_fdir_erase_perfect_filter(struct wx *wx,
+				    union txgbe_atr_input *input,
+				    u16 soft_id)
+{
+	u32 fdirhash, fdircmd;
+	int err = 0;
+
+	/* configure FDIRHASH register */
+	fdirhash = (__force u32)input->formatted.bkt_hash;
+	fdirhash |= TXGBE_RDB_FDIR_HASH_SIG_SW_INDEX(soft_id);
+	wr32(wx, TXGBE_RDB_FDIR_HASH, fdirhash);
+
+	/* flush hash to HW */
+	WX_WRITE_FLUSH(wx);
+
+	/* Query if filter is present */
+	wr32(wx, TXGBE_RDB_FDIR_CMD, TXGBE_RDB_FDIR_CMD_CMD_QUERY_REM_FILT);
+
+	err = txgbe_fdir_check_cmd_complete(wx);
+	if (err) {
+		wx_err(wx, "Flow Director command did not complete!\n");
+		return err;
+	}
+
+	fdircmd = rd32(wx, TXGBE_RDB_FDIR_CMD);
+	/* if filter exists in hardware then remove it */
+	if (fdircmd & TXGBE_RDB_FDIR_CMD_FILTER_VALID) {
+		wr32(wx, TXGBE_RDB_FDIR_HASH, fdirhash);
+		WX_WRITE_FLUSH(wx);
+		wr32(wx, TXGBE_RDB_FDIR_CMD,
+		     TXGBE_RDB_FDIR_CMD_CMD_REMOVE_FLOW);
+	}
+
+	return 0;
+}
+
+/**
+ *  txgbe_fdir_enable - Initialize Flow Director control registers
+ *  @wx: pointer to hardware structure
+ *  @fdirctrl: value to write to flow director control register
+ **/
+static void txgbe_fdir_enable(struct wx *wx, u32 fdirctrl)
+{
+	u32 val;
+	int ret;
+
+	/* Prime the keys for hashing */
+	wr32(wx, TXGBE_RDB_FDIR_HKEY, TXGBE_ATR_BUCKET_HASH_KEY);
+	wr32(wx, TXGBE_RDB_FDIR_SKEY, TXGBE_ATR_SIGNATURE_HASH_KEY);
+
+	wr32(wx, TXGBE_RDB_FDIR_CTL, fdirctrl);
+	WX_WRITE_FLUSH(wx);
+	ret = read_poll_timeout(rd32, val, val & TXGBE_RDB_FDIR_CTL_INIT_DONE,
+				1000, 10000, false, wx, TXGBE_RDB_FDIR_CTL);
+
+	if (ret < 0)
+		wx_dbg(wx, "Flow Director poll time exceeded!\n");
+}
+
+/**
+ *  txgbe_init_fdir_signature -Initialize Flow Director sig filters
+ *  @wx: pointer to hardware structure
+ **/
+static void txgbe_init_fdir_signature(struct wx *wx)
+{
+	u32 fdirctrl = TXGBE_FDIR_PBALLOC_64K;
+	int index = VMDQ_P(0) / 4;
+	int offset = VMDQ_P(0) % 4;
+	u32 flex = 0;
+
+	flex = rd32(wx, TXGBE_RDB_FDIR_FLEX_CFG(index));
+	flex &= ~(TXGBE_RDB_FDIR_FLEX_CFG_FIELD0 << (offset * 8));
+
+	flex |= (TXGBE_RDB_FDIR_FLEX_CFG_BASE_MAC |
+		 TXGBE_RDB_FDIR_FLEX_CFG_OFST(0x6)) << (offset * 8);
+	wr32(wx, TXGBE_RDB_FDIR_FLEX_CFG(index), flex);
+
+	/* Continue setup of fdirctrl register bits:
+	 *  Move the flexible bytes to use the ethertype - shift 6 words
+	 *  Set the maximum length per hash bucket to 0xA filters
+	 *  Send interrupt when 64 filters are left
+	 */
+	fdirctrl |= TXGBE_RDB_FDIR_CTL_HASH_BITS(0xF) |
+		    TXGBE_RDB_FDIR_CTL_MAX_LENGTH(0xA) |
+		    TXGBE_RDB_FDIR_CTL_FULL_THRESH(4);
+
+	/* write hashes and fdirctrl register, poll for completion */
+	txgbe_fdir_enable(wx, fdirctrl);
+}
+
+/**
+ *  txgbe_init_fdir_perfect - Initialize Flow Director perfect filters
+ *  @wx: pointer to hardware structure
+ **/
+static void txgbe_init_fdir_perfect(struct wx *wx)
+{
+	u32 fdirctrl = TXGBE_FDIR_PBALLOC_64K;
+
+	/* Continue setup of fdirctrl register bits:
+	 *  Turn perfect match filtering on
+	 *  Report hash in RSS field of Rx wb descriptor
+	 *  Initialize the drop queue
+	 *  Move the flexible bytes to use the ethertype - shift 6 words
+	 *  Set the maximum length per hash bucket to 0xA filters
+	 *  Send interrupt when 64 (0x4 * 16) filters are left
+	 */
+	fdirctrl |= TXGBE_RDB_FDIR_CTL_PERFECT_MATCH |
+		    TXGBE_RDB_FDIR_CTL_DROP_Q(TXGBE_RDB_FDIR_DROP_QUEUE) |
+		    TXGBE_RDB_FDIR_CTL_HASH_BITS(0xF) |
+		    TXGBE_RDB_FDIR_CTL_MAX_LENGTH(0xA) |
+		    TXGBE_RDB_FDIR_CTL_FULL_THRESH(4);
+
+	/* write hashes and fdirctrl register, poll for completion */
+	txgbe_fdir_enable(wx, fdirctrl);
+}
+
+static void txgbe_fdir_filter_restore(struct wx *wx)
+{
+	struct txgbe_fdir_filter *filter;
+	struct txgbe *txgbe = wx->priv;
+	struct hlist_node *node;
+	u8 queue = 0;
+	int ret = 0;
+
+	spin_lock(&txgbe->fdir_perfect_lock);
+
+	if (!hlist_empty(&txgbe->fdir_filter_list))
+		ret = txgbe_fdir_set_input_mask(wx, &txgbe->fdir_mask);
+
+	if (ret)
+		goto unlock;
+
+	hlist_for_each_entry_safe(filter, node,
+				  &txgbe->fdir_filter_list, fdir_node) {
+		if (filter->action == TXGBE_RDB_FDIR_DROP_QUEUE) {
+			queue = TXGBE_RDB_FDIR_DROP_QUEUE;
+		} else {
+			u32 ring = ethtool_get_flow_spec_ring(filter->action);
+
+			if (ring >= wx->num_rx_queues) {
+				wx_err(wx, "FDIR restore failed, ring:%u\n",
+				       ring);
+				continue;
+			}
+
+			/* Map the ring onto the absolute queue index */
+			queue = wx->rx_ring[ring]->reg_idx;
+		}
+
+		ret = txgbe_fdir_write_perfect_filter(wx,
+						      &filter->filter,
+						      filter->sw_idx,
+						      queue);
+		if (ret)
+			wx_err(wx, "FDIR restore failed, index:%u\n",
+			       filter->sw_idx);
+	}
+
+unlock:
+	spin_unlock(&txgbe->fdir_perfect_lock);
+}
+
+void txgbe_configure_fdir(struct wx *wx)
+{
+	wx_disable_sec_rx_path(wx);
+
+	if (test_bit(WX_FLAG_FDIR_HASH, wx->flags)) {
+		txgbe_init_fdir_signature(wx);
+	} else if (test_bit(WX_FLAG_FDIR_PERFECT, wx->flags)) {
+		txgbe_init_fdir_perfect(wx);
+		txgbe_fdir_filter_restore(wx);
+	}
+
+	wx_enable_sec_rx_path(wx);
+}
+
+void txgbe_fdir_filter_exit(struct wx *wx)
+{
+	struct txgbe_fdir_filter *filter;
+	struct txgbe *txgbe = wx->priv;
+	struct hlist_node *node;
+
+	spin_lock(&txgbe->fdir_perfect_lock);
+
+	hlist_for_each_entry_safe(filter, node,
+				  &txgbe->fdir_filter_list, fdir_node) {
+		hlist_del(&filter->fdir_node);
+		kfree(filter);
+	}
+	txgbe->fdir_filter_count = 0;
+
+	spin_unlock(&txgbe->fdir_perfect_lock);
+}

linux-7.2.3/drivers/net/ethernet/wangxun/txgbe/txgbe_fdir.h

@@ -0,0 +1,20 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2015 - 2024 Beijing WangXun Technology Co., Ltd. */
+
+#ifndef _TXGBE_FDIR_H_
+#define _TXGBE_FDIR_H_
+
+void txgbe_atr_compute_perfect_hash(union txgbe_atr_input *input,
+				    union txgbe_atr_input *input_mask);
+void txgbe_atr(struct wx_ring *ring, struct wx_tx_buffer *first, u8 ptype);
+int txgbe_fdir_set_input_mask(struct wx *wx, union txgbe_atr_input *input_mask);
+int txgbe_fdir_write_perfect_filter(struct wx *wx,
+				    union txgbe_atr_input *input,
+				    u16 soft_id, u8 queue);
+int txgbe_fdir_erase_perfect_filter(struct wx *wx,
+				    union txgbe_atr_input *input,
+				    u16 soft_id);
+void txgbe_configure_fdir(struct wx *wx);
+void txgbe_fdir_filter_exit(struct wx *wx);
+
+#endif /* _TXGBE_FDIR_H_ */

linux-7.2.3/drivers/net/ethernet/wangxun/txgbe/txgbe_hw.c

@@ -0,0 +1,227 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2015 - 2022 Beijing WangXun Technology Co., Ltd. */
+
+#include <linux/etherdevice.h>
+#include <linux/if_ether.h>
+#include <linux/string.h>
+#include <linux/iopoll.h>
+#include <linux/types.h>
+#include <linux/pci.h>
+
+#include "../libwx/wx_type.h"
+#include "../libwx/wx_hw.h"
+#include "txgbe_type.h"
+#include "txgbe_hw.h"
+
+/**
+ *  txgbe_disable_sec_tx_path - Stops the transmit data path
+ *  @wx: pointer to hardware structure
+ *
+ *  Stops the transmit data path and waits for the HW to internally empty
+ *  the tx security block
+ **/
+int txgbe_disable_sec_tx_path(struct wx *wx)
+{
+	int val;
+
+	wr32m(wx, WX_TSC_CTL, WX_TSC_CTL_TX_DIS, WX_TSC_CTL_TX_DIS);
+	return read_poll_timeout(rd32, val, val & WX_TSC_ST_SECTX_RDY,
+				 1000, 20000, false, wx, WX_TSC_ST);
+}
+
+/**
+ *  txgbe_enable_sec_tx_path - Enables the transmit data path
+ *  @wx: pointer to hardware structure
+ *
+ *  Enables the transmit data path.
+ **/
+void txgbe_enable_sec_tx_path(struct wx *wx)
+{
+	wr32m(wx, WX_TSC_CTL, WX_TSC_CTL_TX_DIS, 0);
+	WX_WRITE_FLUSH(wx);
+}
+
+/**
+ *  txgbe_init_thermal_sensor_thresh - Inits thermal sensor thresholds
+ *  @wx: pointer to hardware structure
+ *
+ *  Inits the thermal sensor thresholds according to the NVM map
+ *  and save off the threshold and location values into mac.thermal_sensor_data
+ **/
+static void txgbe_init_thermal_sensor_thresh(struct wx *wx)
+{
+	struct wx_thermal_sensor_data *data = &wx->mac.sensor;
+
+	memset(data, 0, sizeof(struct wx_thermal_sensor_data));
+
+	/* Only support thermal sensors attached to SP physical port 0 */
+	if (wx->bus.func)
+		return;
+
+	wr32(wx, TXGBE_TS_CTL, TXGBE_TS_CTL_EVAL_MD);
+
+	wr32(wx, WX_TS_INT_EN,
+	     WX_TS_INT_EN_ALARM_INT_EN | WX_TS_INT_EN_DALARM_INT_EN);
+	wr32(wx, WX_TS_EN, WX_TS_EN_ENA);
+
+	data->alarm_thresh = 100;
+	wr32(wx, WX_TS_ALARM_THRE, 677);
+	data->dalarm_thresh = 90;
+	wr32(wx, WX_TS_DALARM_THRE, 614);
+}
+
+/**
+ *  txgbe_calc_eeprom_checksum - Calculates and returns the checksum
+ *  @wx: pointer to hardware structure
+ *  @checksum: pointer to cheksum
+ *
+ *  Returns a negative error code on error
+ **/
+static int txgbe_calc_eeprom_checksum(struct wx *wx, u16 *checksum)
+{
+	u16 *eeprom_ptrs = NULL;
+	u16 *local_buffer;
+	int status;
+	u16 i;
+
+	wx_init_eeprom_params(wx);
+
+	eeprom_ptrs = kvmalloc_array(TXGBE_EEPROM_LAST_WORD, sizeof(u16),
+				     GFP_KERNEL);
+	if (!eeprom_ptrs)
+		return -ENOMEM;
+	/* Read pointer area */
+	status = wx_read_ee_hostif_buffer(wx, 0, TXGBE_EEPROM_LAST_WORD, eeprom_ptrs);
+	if (status != 0) {
+		wx_err(wx, "Failed to read EEPROM image\n");
+		kvfree(eeprom_ptrs);
+		return status;
+	}
+	local_buffer = eeprom_ptrs;
+
+	for (i = 0; i < TXGBE_EEPROM_LAST_WORD; i++) {
+		if (wx->mac.type == wx_mac_aml) {
+			if (i >= TXGBE_EEPROM_I2C_SRART_PTR &&
+			    i < TXGBE_EEPROM_I2C_END_PTR)
+				local_buffer[i] = 0xffff;
+		}
+		if (i != wx->eeprom.sw_region_offset + TXGBE_EEPROM_CHECKSUM)
+			*checksum += local_buffer[i];
+	}
+
+	kvfree(eeprom_ptrs);
+
+	*checksum = TXGBE_EEPROM_SUM - *checksum;
+
+	return 0;
+}
+
+/**
+ *  txgbe_validate_eeprom_checksum - Validate EEPROM checksum
+ *  @wx: pointer to hardware structure
+ *  @checksum_val: calculated checksum
+ *
+ *  Performs checksum calculation and validates the EEPROM checksum.  If the
+ *  caller does not need checksum_val, the value can be NULL.
+ **/
+int txgbe_validate_eeprom_checksum(struct wx *wx, u16 *checksum_val)
+{
+	u16 read_checksum = 0;
+	u16 checksum;
+	int status;
+
+	/* Read the first word from the EEPROM. If this times out or fails, do
+	 * not continue or we could be in for a very long wait while every
+	 * EEPROM read fails
+	 */
+	status = wx_read_ee_hostif(wx, 0, &checksum);
+	if (status) {
+		wx_err(wx, "EEPROM read failed\n");
+		return status;
+	}
+
+	checksum = 0;
+	status = txgbe_calc_eeprom_checksum(wx, &checksum);
+	if (status != 0)
+		return status;
+
+	status = wx_read_ee_hostif(wx, wx->eeprom.sw_region_offset +
+				   TXGBE_EEPROM_CHECKSUM, &read_checksum);
+	if (status != 0)
+		return status;
+
+	/* Verify read checksum from EEPROM is the same as
+	 * calculated checksum
+	 */
+	if (read_checksum != checksum) {
+		status = -EIO;
+		wx_err(wx, "Invalid EEPROM checksum\n");
+	}
+
+	/* If the user cares, return the calculated checksum */
+	if (checksum_val)
+		*checksum_val = checksum;
+
+	return status;
+}
+
+static void txgbe_reset_misc(struct wx *wx)
+{
+	wx_reset_misc(wx);
+	txgbe_init_thermal_sensor_thresh(wx);
+}
+
+/**
+ *  txgbe_reset_hw - Perform hardware reset
+ *  @wx: pointer to wx structure
+ *
+ *  Resets the hardware by resetting the transmit and receive units, masks
+ *  and clears all interrupts, perform a PHY reset, and perform a link (MAC)
+ *  reset.
+ **/
+int txgbe_reset_hw(struct wx *wx)
+{
+	int status;
+
+	/* Call adapter stop to disable tx/rx and clear interrupts */
+	status = wx_stop_adapter(wx);
+	if (status != 0)
+		return status;
+
+	if (wx->media_type != wx_media_copper) {
+		u32 val;
+
+		val = WX_MIS_RST_LAN_RST(wx->bus.func);
+		wr32(wx, WX_MIS_RST, val | rd32(wx, WX_MIS_RST));
+		WX_WRITE_FLUSH(wx);
+		usleep_range(10, 100);
+	}
+
+	status = wx_check_flash_load(wx, TXGBE_SPI_ILDR_STATUS_LAN_SW_RST(wx->bus.func));
+	if (status != 0)
+		return status;
+
+	txgbe_reset_misc(wx);
+
+	if (wx->mac.type != wx_mac_sp) {
+		wr32(wx, TXGBE_PX_PF_BME, 0x1);
+		wr32m(wx, TXGBE_RDM_RSC_CTL, TXGBE_RDM_RSC_CTL_FREE_CTL,
+		      TXGBE_RDM_RSC_CTL_FREE_CTL);
+	}
+
+	wx_clear_hw_cntrs(wx);
+
+	/* Store the permanent mac address */
+	wx_get_mac_addr(wx, wx->mac.perm_addr);
+
+	/* Store MAC address from RAR0, clear receive address registers, and
+	 * clear the multicast table.  Also reset num_rar_entries to 128,
+	 * since we modify this value when programming the SAN MAC address.
+	 */
+	wx->mac.num_rar_entries = TXGBE_RAR_ENTRIES;
+	wx_init_rx_addrs(wx);
+
+	pci_set_master(wx->pdev);
+
+	return 0;
+}

linux-7.2.3/drivers/net/ethernet/wangxun/txgbe/txgbe_hw.h

@@ -0,0 +1,12 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2015 - 2022 Beijing WangXun Technology Co., Ltd. */
+
+#ifndef _TXGBE_HW_H_
+#define _TXGBE_HW_H_
+
+int txgbe_disable_sec_tx_path(struct wx *wx);
+void txgbe_enable_sec_tx_path(struct wx *wx);
+int txgbe_validate_eeprom_checksum(struct wx *wx, u16 *checksum_val);
+int txgbe_reset_hw(struct wx *wx);
+
+#endif /* _TXGBE_HW_H_ */

linux-7.2.3/drivers/net/ethernet/wangxun/txgbe/txgbe_irq.c

@@ -0,0 +1,268 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2015 - 2024 Beijing WangXun Technology Co., Ltd. */
+
+#include <linux/irqdomain.h>
+#include <linux/pci.h>
+
+#include "../libwx/wx_type.h"
+#include "../libwx/wx_lib.h"
+#include "../libwx/wx_ptp.h"
+#include "../libwx/wx_hw.h"
+#include "../libwx/wx_sriov.h"
+#include "txgbe_type.h"
+#include "txgbe_phy.h"
+#include "txgbe_irq.h"
+#include "txgbe_aml.h"
+
+/**
+ * txgbe_irq_enable - Enable default interrupt generation settings
+ * @wx: pointer to private structure
+ * @queues: enable irqs for queues
+ **/
+void txgbe_irq_enable(struct wx *wx, bool queues)
+{
+	u32 misc_ien = TXGBE_PX_MISC_IEN_MASK;
+
+	if (wx->mac.type != wx_mac_sp) {
+		misc_ien |= TXGBE_PX_MISC_GPIO;
+		txgbe_gpio_init_aml(wx);
+	}
+
+	wr32(wx, WX_PX_MISC_IEN, misc_ien);
+
+	/* unmask interrupt */
+	wx_intr_enable(wx, TXGBE_INTR_MISC(wx));
+	if (queues)
+		wx_intr_enable(wx, TXGBE_INTR_QALL(wx));
+}
+
+/**
+ * txgbe_request_queue_irqs - Initialize MSI-X queue interrupts
+ * @wx: board private structure
+ *
+ * Allocate MSI-X queue vectors and request interrupts from the kernel.
+ **/
+int txgbe_request_queue_irqs(struct wx *wx)
+{
+	struct net_device *netdev = wx->netdev;
+	int vector, err;
+
+	if (!wx->pdev->msix_enabled)
+		return 0;
+
+	for (vector = 0; vector < wx->num_q_vectors; vector++) {
+		struct wx_q_vector *q_vector = wx->q_vector[vector];
+		struct msix_entry *entry = &wx->msix_q_entries[vector];
+
+		if (q_vector->tx.ring && q_vector->rx.ring)
+			snprintf(q_vector->name, sizeof(q_vector->name) - 1,
+				 "%s-TxRx-%d", netdev->name, entry->entry);
+		else
+			/* skip this unused q_vector */
+			continue;
+
+		err = request_irq(entry->vector, wx_msix_clean_rings, 0,
+				  q_vector->name, q_vector);
+		if (err) {
+			wx_err(wx, "request_irq failed for MSIX interrupt %s Error: %d\n",
+			       q_vector->name, err);
+			goto free_queue_irqs;
+		}
+	}
+
+	return 0;
+
+free_queue_irqs:
+	while (vector) {
+		vector--;
+		free_irq(wx->msix_q_entries[vector].vector,
+			 wx->q_vector[vector]);
+	}
+	return err;
+}
+
+static int txgbe_request_link_irq(struct txgbe *txgbe)
+{
+	txgbe->link_irq = irq_find_mapping(txgbe->misc.domain, TXGBE_IRQ_LINK);
+	return request_threaded_irq(txgbe->link_irq, NULL,
+				    txgbe_link_irq_handler,
+				    IRQF_ONESHOT, "txgbe-link-irq", txgbe);
+}
+
+static int txgbe_request_gpio_irq(struct txgbe *txgbe)
+{
+	txgbe->gpio_irq = irq_find_mapping(txgbe->misc.domain, TXGBE_IRQ_GPIO);
+	return request_threaded_irq(txgbe->gpio_irq, NULL,
+				    txgbe_gpio_irq_handler_aml,
+				    IRQF_ONESHOT, "txgbe-gpio-irq", txgbe);
+}
+
+static const struct irq_chip txgbe_irq_chip = {
+	.name = "txgbe-misc-irq",
+};
+
+static int txgbe_misc_irq_domain_map(struct irq_domain *d,
+				     unsigned int irq,
+				     irq_hw_number_t hwirq)
+{
+	struct txgbe *txgbe = d->host_data;
+
+	irq_set_chip_data(irq, txgbe);
+	irq_set_chip(irq, &txgbe->misc.chip);
+	irq_set_nested_thread(irq, true);
+	irq_set_noprobe(irq);
+
+	return 0;
+}
+
+static const struct irq_domain_ops txgbe_misc_irq_domain_ops = {
+	.map = txgbe_misc_irq_domain_map,
+};
+
+static irqreturn_t txgbe_misc_irq_handle(int irq, void *data)
+{
+	struct wx_q_vector *q_vector;
+	struct txgbe *txgbe = data;
+	struct wx *wx = txgbe->wx;
+	u32 eicr;
+
+	if (wx->pdev->msix_enabled) {
+		eicr = wx_misc_isb(wx, WX_ISB_MISC);
+		txgbe->eicr = eicr;
+		if (eicr & TXGBE_PX_MISC_IC_VF_MBOX) {
+			wx_msg_task(txgbe->wx);
+			wx_intr_enable(wx, TXGBE_INTR_MISC(wx));
+		}
+		return IRQ_WAKE_THREAD;
+	}
+
+	eicr = wx_misc_isb(wx, WX_ISB_VEC0);
+	if (!eicr) {
+		/* shared interrupt alert!
+		 * the interrupt that we masked before the ICR read.
+		 */
+		if (!test_bit(WX_STATE_DOWN, wx->state))
+			txgbe_irq_enable(wx, true);
+		return IRQ_NONE;        /* Not our interrupt */
+	}
+	wx->isb_mem[WX_ISB_VEC0] = 0;
+	if (!(wx->pdev->msi_enabled))
+		wr32(wx, WX_PX_INTA, 1);
+
+	/* would disable interrupts here but it is auto disabled */
+	q_vector = wx->q_vector[0];
+	napi_schedule_irqoff(&q_vector->napi);
+
+	txgbe->eicr = wx_misc_isb(wx, WX_ISB_MISC);
+
+	return IRQ_WAKE_THREAD;
+}
+
+static irqreturn_t txgbe_misc_irq_thread_fn(int irq, void *data)
+{
+	struct txgbe *txgbe = data;
+	struct wx *wx = txgbe->wx;
+	unsigned int nhandled = 0;
+	unsigned int sub_irq;
+	u32 eicr;
+
+	eicr = txgbe->eicr;
+	if (eicr & (TXGBE_PX_MISC_ETH_LK | TXGBE_PX_MISC_ETH_LKDN |
+		    TXGBE_PX_MISC_ETH_AN)) {
+		sub_irq = irq_find_mapping(txgbe->misc.domain, TXGBE_IRQ_LINK);
+		handle_nested_irq(sub_irq);
+		nhandled++;
+	}
+	if (eicr & TXGBE_PX_MISC_GPIO) {
+		sub_irq = irq_find_mapping(txgbe->misc.domain, TXGBE_IRQ_GPIO);
+		handle_nested_irq(sub_irq);
+		nhandled++;
+	}
+	if (unlikely(eicr & TXGBE_PX_MISC_IC_TIMESYNC)) {
+		wx_ptp_check_pps_event(wx);
+		nhandled++;
+	}
+
+	wx_intr_enable(wx, TXGBE_INTR_MISC(wx));
+	return (nhandled > 0 ? IRQ_HANDLED : IRQ_NONE);
+}
+
+static void txgbe_del_irq_domain(struct txgbe *txgbe)
+{
+	int hwirq, virq;
+
+	for (hwirq = 0; hwirq < txgbe->misc.nirqs; hwirq++) {
+		virq = irq_find_mapping(txgbe->misc.domain, hwirq);
+		irq_dispose_mapping(virq);
+	}
+
+	irq_domain_remove(txgbe->misc.domain);
+}
+
+void txgbe_free_misc_irq(struct txgbe *txgbe)
+{
+	if (txgbe->wx->mac.type != wx_mac_sp)
+		free_irq(txgbe->gpio_irq, txgbe);
+
+	free_irq(txgbe->link_irq, txgbe);
+	free_irq(txgbe->misc.irq, txgbe);
+	txgbe_del_irq_domain(txgbe);
+	txgbe->wx->misc_irq_domain = false;
+}
+
+int txgbe_setup_misc_irq(struct txgbe *txgbe)
+{
+	unsigned long flags = IRQF_ONESHOT;
+	struct wx *wx = txgbe->wx;
+	int hwirq, err;
+
+	txgbe->misc.nirqs = TXGBE_IRQ_MAX;
+	txgbe->misc.domain = irq_domain_create_simple(NULL, txgbe->misc.nirqs, 0,
+						      &txgbe_misc_irq_domain_ops, txgbe);
+	if (!txgbe->misc.domain)
+		return -ENOMEM;
+
+	for (hwirq = 0; hwirq < txgbe->misc.nirqs; hwirq++)
+		irq_create_mapping(txgbe->misc.domain, hwirq);
+
+	txgbe->misc.chip = txgbe_irq_chip;
+	if (wx->pdev->msix_enabled) {
+		txgbe->misc.irq = wx->msix_entry->vector;
+	} else {
+		txgbe->misc.irq = wx->pdev->irq;
+		if (!wx->pdev->msi_enabled)
+			flags |= IRQF_SHARED;
+	}
+
+	err = request_threaded_irq(txgbe->misc.irq, txgbe_misc_irq_handle,
+				   txgbe_misc_irq_thread_fn,
+				   flags,
+				   wx->netdev->name, txgbe);
+	if (err)
+		goto del_misc_irq;
+
+	err = txgbe_request_link_irq(txgbe);
+	if (err)
+		goto free_msic_irq;
+
+	if (wx->mac.type == wx_mac_sp)
+		goto skip_sp_irq;
+
+	err = txgbe_request_gpio_irq(txgbe);
+	if (err)
+		goto free_link_irq;
+
+skip_sp_irq:
+	wx->misc_irq_domain = true;
+
+	return 0;
+
+free_link_irq:
+	free_irq(txgbe->link_irq, txgbe);
+free_msic_irq:
+	free_irq(txgbe->misc.irq, txgbe);
+del_misc_irq:
+	txgbe_del_irq_domain(txgbe);
+
+	return err;
+}

linux-7.2.3/drivers/net/ethernet/wangxun/txgbe/txgbe_irq.h

@@ -0,0 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2015 - 2024 Beijing WangXun Technology Co., Ltd. */
+
+void txgbe_irq_enable(struct wx *wx, bool queues);
+int txgbe_request_queue_irqs(struct wx *wx);
+void txgbe_free_misc_irq(struct txgbe *txgbe);
+int txgbe_setup_misc_irq(struct txgbe *txgbe);

linux-7.2.3/drivers/net/ethernet/wangxun/txgbe/txgbe_main.c

@@ -0,0 +1,980 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2015 - 2022 Beijing WangXun Technology Co., Ltd. */
+
+#include <linux/types.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/netdevice.h>
+#include <linux/string.h>
+#include <linux/etherdevice.h>
+#include <linux/phylink.h>
+#include <net/udp_tunnel.h>
+#include <net/ip.h>
+#include <linux/if_vlan.h>
+
+#include "../libwx/wx_type.h"
+#include "../libwx/wx_lib.h"
+#include "../libwx/wx_ptp.h"
+#include "../libwx/wx_hw.h"
+#include "../libwx/wx_mbx.h"
+#include "../libwx/wx_sriov.h"
+#include "txgbe_type.h"
+#include "txgbe_hw.h"
+#include "txgbe_phy.h"
+#include "txgbe_aml.h"
+#include "txgbe_irq.h"
+#include "txgbe_fdir.h"
+#include "txgbe_ethtool.h"
+
+char txgbe_driver_name[] = "txgbe";
+
+/* txgbe_pci_tbl - PCI Device ID Table
+ *
+ * Wildcard entries (PCI_ANY_ID) should come last
+ * Last entry must be all 0s
+ *
+ * { Vendor ID, Device ID, SubVendor ID, SubDevice ID,
+ *   Class, Class Mask, private data (not used) }
+ */
+static const struct pci_device_id txgbe_pci_tbl[] = {
+	{ PCI_VDEVICE(WANGXUN, TXGBE_DEV_ID_SP1000) },
+	{ PCI_VDEVICE(WANGXUN, TXGBE_DEV_ID_WX1820) },
+	{ PCI_VDEVICE(WANGXUN, TXGBE_DEV_ID_AML5010) },
+	{ PCI_VDEVICE(WANGXUN, TXGBE_DEV_ID_AML5110) },
+	{ PCI_VDEVICE(WANGXUN, TXGBE_DEV_ID_AML5025) },
+	{ PCI_VDEVICE(WANGXUN, TXGBE_DEV_ID_AML5125) },
+	{ PCI_VDEVICE(WANGXUN, TXGBE_DEV_ID_AML5040) },
+	{ PCI_VDEVICE(WANGXUN, TXGBE_DEV_ID_AML5140) },
+	/* required last entry */
+	{ }
+};
+
+#define DEFAULT_DEBUG_LEVEL_SHIFT 3
+
+static void txgbe_check_minimum_link(struct wx *wx)
+{
+	struct pci_dev *pdev;
+
+	pdev = wx->pdev;
+	pcie_print_link_status(pdev);
+}
+
+/**
+ * txgbe_enumerate_functions - Get the number of ports this device has
+ * @wx: wx structure
+ *
+ * This function enumerates the phsyical functions co-located on a single slot,
+ * in order to determine how many ports a device has. This is most useful in
+ * determining the required GT/s of PCIe bandwidth necessary for optimal
+ * performance.
+ **/
+static int txgbe_enumerate_functions(struct wx *wx)
+{
+	struct pci_dev *entry, *pdev = wx->pdev;
+	int physfns = 0;
+
+	list_for_each_entry(entry, &pdev->bus->devices, bus_list) {
+		/* When the devices on the bus don't all match our device ID,
+		 * we can't reliably determine the correct number of
+		 * functions. This can occur if a function has been direct
+		 * attached to a virtual machine using VT-d.
+		 */
+		if (entry->vendor != pdev->vendor ||
+		    entry->device != pdev->device)
+			return -EINVAL;
+
+		physfns++;
+	}
+
+	return physfns;
+}
+
+static void txgbe_module_detection_subtask(struct wx *wx)
+{
+	int err;
+
+	if (!test_and_clear_bit(WX_FLAG_NEED_MODULE_RESET, wx->flags))
+		return;
+
+	/* wait for SFF module ready */
+	msleep(200);
+
+	err = txgbe_identify_module(wx);
+	if (err == -ENODEV)
+		set_bit(WX_FLAG_NEED_MODULE_RESET, wx->flags);
+}
+
+static void txgbe_link_config_subtask(struct wx *wx)
+{
+	if (!test_and_clear_bit(WX_FLAG_NEED_LINK_CONFIG, wx->flags))
+		return;
+
+	txgbe_set_phy_link(wx);
+}
+
+/**
+ * txgbe_service_task - manages and runs subtasks
+ * @work: pointer to work_struct containing our data
+ **/
+static void txgbe_service_task(struct work_struct *work)
+{
+	struct wx *wx = container_of(work, struct wx, service_task);
+
+	txgbe_module_detection_subtask(wx);
+	txgbe_link_config_subtask(wx);
+	wx_update_stats(wx);
+
+	wx_service_event_complete(wx);
+}
+
+static void txgbe_init_service(struct wx *wx)
+{
+	timer_setup(&wx->service_timer, wx_service_timer, 0);
+	INIT_WORK(&wx->service_task, txgbe_service_task);
+	clear_bit(WX_STATE_SERVICE_SCHED, wx->state);
+}
+
+static void txgbe_up_complete(struct wx *wx)
+{
+	struct net_device *netdev = wx->netdev;
+
+	wx_control_hw(wx, true);
+	wx_configure_vectors(wx);
+
+	/* make sure to complete pre-operations */
+	smp_mb__before_atomic();
+	clear_bit(WX_STATE_DOWN, wx->state);
+	wx_napi_enable_all(wx);
+
+	switch (wx->mac.type) {
+	case wx_mac_aml40:
+		txgbe_setup_link(wx);
+		phylink_start(wx->phylink);
+		break;
+	case wx_mac_aml:
+		/* Enable TX laser */
+		wr32m(wx, WX_GPIO_DR, TXGBE_GPIOBIT_1, 0);
+		txgbe_setup_link(wx);
+		phylink_start(wx->phylink);
+		break;
+	case wx_mac_sp:
+		phylink_start(wx->phylink);
+		break;
+	default:
+		break;
+	}
+
+	/* clear any pending interrupts, may auto mask */
+	rd32(wx, WX_PX_IC(0));
+	rd32(wx, WX_PX_IC(1));
+	rd32(wx, WX_PX_MISC_IC);
+	txgbe_irq_enable(wx, true);
+
+	/* enable transmits */
+	netif_tx_start_all_queues(netdev);
+	mod_timer(&wx->service_timer, jiffies);
+
+	/* Set PF Reset Done bit so PF/VF Mail Ops can work */
+	wr32m(wx, WX_CFG_PORT_CTL, WX_CFG_PORT_CTL_PFRSTD,
+	      WX_CFG_PORT_CTL_PFRSTD);
+	/* update setting rx tx for all active vfs */
+	wx_set_all_vfs(wx);
+}
+
+static void txgbe_reset(struct wx *wx)
+{
+	struct net_device *netdev = wx->netdev;
+	u8 old_addr[ETH_ALEN];
+	int err;
+
+	err = txgbe_reset_hw(wx);
+	if (err != 0)
+		wx_err(wx, "Hardware Error: %d\n", err);
+
+	wx_start_hw(wx);
+	/* do not flush user set addresses */
+	memcpy(old_addr, &wx->mac_table[0].addr, netdev->addr_len);
+	wx_flush_sw_mac_table(wx);
+	wx_mac_set_default_filter(wx, old_addr);
+
+	if (test_bit(WX_STATE_PTP_RUNNING, wx->state))
+		wx_ptp_reset(wx);
+}
+
+static void txgbe_disable_device(struct wx *wx)
+{
+	struct net_device *netdev = wx->netdev;
+	u32 i;
+
+	if (test_and_set_bit(WX_STATE_DOWN, wx->state))
+		return;
+
+	wx_disable_pcie_master(wx);
+	/* disable receives */
+	wx_disable_rx(wx);
+
+	/* disable all enabled rx queues */
+	for (i = 0; i < wx->num_rx_queues; i++)
+		/* this call also flushes the previous write */
+		wx_disable_rx_queue(wx, wx->rx_ring[i]);
+
+	netif_tx_stop_all_queues(netdev);
+	netif_tx_disable(netdev);
+
+	wx_irq_disable(wx);
+	wx_napi_disable_all(wx);
+
+	timer_delete_sync(&wx->service_timer);
+	cancel_work_sync(&wx->service_task);
+
+	if (wx->bus.func < 2)
+		wr32m(wx, TXGBE_MIS_PRB_CTL, TXGBE_MIS_PRB_CTL_LAN_UP(wx->bus.func), 0);
+	else
+		wx_err(wx, "%s: invalid bus lan id %d\n",
+		       __func__, wx->bus.func);
+
+	if (wx->num_vfs) {
+		/* Clear EITR Select mapping */
+		wr32(wx, WX_PX_ITRSEL, 0);
+		/* Mark all the VFs as inactive */
+		for (i = 0; i < wx->num_vfs; i++)
+			wx->vfinfo[i].clear_to_send = 0;
+		/* update setting rx tx for all active vfs */
+		wx_set_all_vfs(wx);
+	}
+
+	if (!(((wx->subsystem_device_id & WX_NCSI_MASK) == WX_NCSI_SUP) ||
+	      ((wx->subsystem_device_id & WX_WOL_MASK) == WX_WOL_SUP))) {
+		/* disable mac transmiter */
+		wr32m(wx, WX_MAC_TX_CFG, WX_MAC_TX_CFG_TE, 0);
+	}
+
+	/* disable transmits in the hardware now that interrupts are off */
+	for (i = 0; i < wx->num_tx_queues; i++) {
+		u8 reg_idx = wx->tx_ring[i]->reg_idx;
+
+		wr32(wx, WX_PX_TR_CFG(reg_idx), WX_PX_TR_CFG_SWFLSH);
+	}
+
+	/* Disable the Tx DMA engine */
+	wr32m(wx, WX_TDM_CTL, WX_TDM_CTL_TE, 0);
+}
+
+void txgbe_down(struct wx *wx)
+{
+	txgbe_disable_device(wx);
+	txgbe_reset(wx);
+
+	switch (wx->mac.type) {
+	case wx_mac_aml40:
+		phylink_stop(wx->phylink);
+		break;
+	case wx_mac_aml:
+		phylink_stop(wx->phylink);
+		/* Disable TX laser */
+		wr32m(wx, WX_GPIO_DR, TXGBE_GPIOBIT_1, TXGBE_GPIOBIT_1);
+		break;
+	case wx_mac_sp:
+		phylink_stop(wx->phylink);
+		break;
+	default:
+		break;
+	}
+
+	wx_clean_all_tx_rings(wx);
+	wx_clean_all_rx_rings(wx);
+}
+
+void txgbe_up(struct wx *wx)
+{
+	wx_configure(wx);
+	wx_ptp_init(wx);
+	txgbe_up_complete(wx);
+}
+
+/**
+ *  txgbe_init_type_code - Initialize the shared code
+ *  @wx: pointer to hardware structure
+ **/
+static void txgbe_init_type_code(struct wx *wx)
+{
+	u8 device_type = wx->subsystem_device_id & 0xF0;
+
+	switch (wx->device_id) {
+	case TXGBE_DEV_ID_SP1000:
+	case TXGBE_DEV_ID_WX1820:
+		wx->mac.type = wx_mac_sp;
+		break;
+	case TXGBE_DEV_ID_AML5010:
+	case TXGBE_DEV_ID_AML5110:
+	case TXGBE_DEV_ID_AML5025:
+	case TXGBE_DEV_ID_AML5125:
+		wx->mac.type = wx_mac_aml;
+		break;
+	case TXGBE_DEV_ID_AML5040:
+	case TXGBE_DEV_ID_AML5140:
+		wx->mac.type = wx_mac_aml40;
+		break;
+	default:
+		wx->mac.type = wx_mac_unknown;
+		break;
+	}
+
+	switch (device_type) {
+	case TXGBE_ID_SFP:
+		wx->media_type = wx_media_fiber;
+		break;
+	case TXGBE_ID_XAUI:
+	case TXGBE_ID_SGMII:
+		wx->media_type = wx_media_copper;
+		break;
+	case TXGBE_ID_KR_KX_KX4:
+	case TXGBE_ID_MAC_XAUI:
+	case TXGBE_ID_MAC_SGMII:
+		wx->media_type = wx_media_backplane;
+		break;
+	case TXGBE_ID_SFI_XAUI:
+		if (wx->bus.func == 0)
+			wx->media_type = wx_media_fiber;
+		else
+			wx->media_type = wx_media_copper;
+		break;
+	default:
+		wx->media_type = wx_media_unknown;
+		break;
+	}
+}
+
+/**
+ * txgbe_sw_init - Initialize general software structures (struct wx)
+ * @wx: board private structure to initialize
+ **/
+static int txgbe_sw_init(struct wx *wx)
+{
+	u16 msix_count = 0;
+	int err;
+
+	wx->mac.num_rar_entries = TXGBE_RAR_ENTRIES;
+	wx->mac.max_tx_queues = TXGBE_MAX_TXQ;
+	wx->mac.max_rx_queues = TXGBE_MAX_RXQ;
+	wx->mac.mcft_size = TXGBE_MC_TBL_SIZE;
+	wx->mac.vft_size = TXGBE_VFT_TBL_SIZE;
+	wx->mac.rx_pb_size = TXGBE_RX_PB_SIZE;
+	wx->mac.tx_pb_size = TXGBE_TDB_PB_SZ;
+
+	/* PCI config space info */
+	err = wx_sw_init(wx);
+	if (err < 0)
+		return err;
+
+	txgbe_init_type_code(wx);
+
+	/* Set common capability flags and settings */
+	wx->max_q_vectors = TXGBE_MAX_MSIX_VECTORS;
+	err = wx_get_pcie_msix_counts(wx, &msix_count, TXGBE_MAX_MSIX_VECTORS);
+	if (err)
+		wx_err(wx, "Do not support MSI-X\n");
+	wx->mac.max_msix_vectors = msix_count;
+
+	wx->ring_feature[RING_F_RSS].limit = min_t(int, TXGBE_MAX_RSS_INDICES,
+						   num_online_cpus());
+	wx->rss_enabled = true;
+
+	wx->ring_feature[RING_F_FDIR].limit = min_t(int, TXGBE_MAX_FDIR_INDICES,
+						    num_online_cpus());
+	set_bit(WX_FLAG_FDIR_CAPABLE, wx->flags);
+	set_bit(WX_FLAG_FDIR_HASH, wx->flags);
+	wx->atr_sample_rate = TXGBE_DEFAULT_ATR_SAMPLE_RATE;
+	wx->atr = txgbe_atr;
+	wx->configure_fdir = txgbe_configure_fdir;
+
+	set_bit(WX_FLAG_RSC_CAPABLE, wx->flags);
+	set_bit(WX_FLAG_RSC_ENABLED, wx->flags);
+	set_bit(WX_FLAG_MULTI_64_FUNC, wx->flags);
+
+	/* enable itr by default in dynamic mode */
+	wx->adaptive_itr = true;
+	wx->rx_itr_setting = 1;
+	wx->tx_itr_setting = 1;
+
+	/* set default ring sizes */
+	wx->tx_ring_count = TXGBE_DEFAULT_TXD;
+	wx->rx_ring_count = TXGBE_DEFAULT_RXD;
+	wx->mbx.size = WX_VXMAILBOX_SIZE;
+
+	/* set default work limits */
+	wx->tx_work_limit = TXGBE_DEFAULT_TX_WORK;
+	wx->rx_work_limit = TXGBE_DEFAULT_RX_WORK;
+
+	wx->setup_tc = txgbe_setup_tc;
+	wx->do_reset = txgbe_do_reset;
+	set_bit(0, &wx->fwd_bitmask);
+
+	switch (wx->mac.type) {
+	case wx_mac_sp:
+		break;
+	case wx_mac_aml:
+	case wx_mac_aml40:
+		set_bit(WX_FLAG_RX_MERGE_ENABLED, wx->flags);
+		set_bit(WX_FLAG_TXHEAD_WB_ENABLED, wx->flags);
+		set_bit(WX_FLAG_SWFW_RING, wx->flags);
+		wx->swfw_index = 0;
+		break;
+	default:
+		break;
+	}
+
+	return 0;
+}
+
+static void txgbe_init_fdir(struct txgbe *txgbe)
+{
+	txgbe->fdir_filter_count = 0;
+	spin_lock_init(&txgbe->fdir_perfect_lock);
+}
+
+/**
+ * txgbe_open - Called when a network interface is made active
+ * @netdev: network interface device structure
+ *
+ * Returns 0 on success, negative value on failure
+ *
+ * The open entry point is called when a network interface is made
+ * active by the system (IFF_UP).
+ **/
+static int txgbe_open(struct net_device *netdev)
+{
+	struct wx *wx = netdev_priv(netdev);
+	int err;
+
+	err = wx_setup_resources(wx);
+	if (err)
+		goto err_reset;
+
+	wx_configure(wx);
+
+	err = txgbe_setup_misc_irq(wx->priv);
+	if (err)
+		goto err_free_resources;
+
+	err = txgbe_request_queue_irqs(wx);
+	if (err)
+		goto err_free_misc_irq;
+
+	/* Notify the stack of the actual queue counts. */
+	err = netif_set_real_num_tx_queues(netdev, wx->num_tx_queues);
+	if (err)
+		goto err_free_irq;
+
+	err = netif_set_real_num_rx_queues(netdev, wx->num_rx_queues);
+	if (err)
+		goto err_free_irq;
+
+	wx_ptp_init(wx);
+
+	txgbe_up_complete(wx);
+
+	return 0;
+
+err_free_irq:
+	wx_free_irq(wx);
+err_free_misc_irq:
+	txgbe_free_misc_irq(wx->priv);
+	wx_reset_interrupt_capability(wx);
+err_free_resources:
+	wx_free_resources(wx);
+err_reset:
+	txgbe_reset(wx);
+
+	return err;
+}
+
+/**
+ * txgbe_close_suspend - actions necessary to both suspend and close flows
+ * @wx: the private wx struct
+ *
+ * This function should contain the necessary work common to both suspending
+ * and closing of the device.
+ */
+static void txgbe_close_suspend(struct wx *wx)
+{
+	wx_ptp_suspend(wx);
+	txgbe_disable_device(wx);
+	wx_free_resources(wx);
+}
+
+/**
+ * txgbe_close - Disables a network interface
+ * @netdev: network interface device structure
+ *
+ * Returns 0, this is not allowed to fail
+ *
+ * The close entry point is called when an interface is de-activated
+ * by the OS.  The hardware is still under the drivers control, but
+ * needs to be disabled.  A global MAC reset is issued to stop the
+ * hardware, and all transmit and receive resources are freed.
+ **/
+static int txgbe_close(struct net_device *netdev)
+{
+	struct wx *wx = netdev_priv(netdev);
+
+	wx_ptp_stop(wx);
+	txgbe_down(wx);
+	wx_free_irq(wx);
+	txgbe_free_misc_irq(wx->priv);
+	wx_free_resources(wx);
+	txgbe_fdir_filter_exit(wx);
+	wx_control_hw(wx, false);
+
+	return 0;
+}
+
+static void txgbe_dev_shutdown(struct pci_dev *pdev)
+{
+	struct wx *wx = pci_get_drvdata(pdev);
+	struct net_device *netdev;
+
+	netdev = wx->netdev;
+	netif_device_detach(netdev);
+
+	rtnl_lock();
+	if (netif_running(netdev))
+		txgbe_close_suspend(wx);
+	rtnl_unlock();
+
+	wx_control_hw(wx, false);
+
+	pci_disable_device(pdev);
+}
+
+static void txgbe_shutdown(struct pci_dev *pdev)
+{
+	txgbe_dev_shutdown(pdev);
+
+	if (system_state == SYSTEM_POWER_OFF) {
+		pci_wake_from_d3(pdev, false);
+		pci_set_power_state(pdev, PCI_D3hot);
+	}
+}
+
+/**
+ * txgbe_setup_tc - routine to configure net_device for multiple traffic
+ * classes.
+ *
+ * @dev: net device to configure
+ * @tc: number of traffic classes to enable
+ */
+int txgbe_setup_tc(struct net_device *dev, u8 tc)
+{
+	struct wx *wx = netdev_priv(dev);
+
+	/* Hardware has to reinitialize queues and interrupts to
+	 * match packet buffer alignment. Unfortunately, the
+	 * hardware is not flexible enough to do this dynamically.
+	 */
+	if (netif_running(dev))
+		txgbe_close(dev);
+	else
+		txgbe_reset(wx);
+
+	wx_clear_interrupt_scheme(wx);
+
+	if (tc)
+		netdev_set_num_tc(dev, tc);
+	else
+		netdev_reset_tc(dev);
+
+	wx_init_interrupt_scheme(wx);
+
+	if (netif_running(dev))
+		txgbe_open(dev);
+
+	return 0;
+}
+
+static void txgbe_reinit_locked(struct wx *wx)
+{
+	netif_trans_update(wx->netdev);
+
+	mutex_lock(&wx->reset_lock);
+	set_bit(WX_STATE_RESETTING, wx->state);
+
+	txgbe_down(wx);
+	txgbe_up(wx);
+
+	clear_bit(WX_STATE_RESETTING, wx->state);
+	mutex_unlock(&wx->reset_lock);
+}
+
+void txgbe_do_reset(struct net_device *netdev)
+{
+	struct wx *wx = netdev_priv(netdev);
+
+	if (netif_running(netdev))
+		txgbe_reinit_locked(wx);
+	else
+		txgbe_reset(wx);
+}
+
+static int txgbe_udp_tunnel_sync(struct net_device *dev, unsigned int table)
+{
+	struct wx *wx = netdev_priv(dev);
+	struct udp_tunnel_info ti;
+
+	udp_tunnel_nic_get_port(dev, table, 0, &ti);
+	switch (ti.type) {
+	case UDP_TUNNEL_TYPE_VXLAN:
+		wr32(wx, TXGBE_CFG_VXLAN, ntohs(ti.port));
+		break;
+	case UDP_TUNNEL_TYPE_VXLAN_GPE:
+		wr32(wx, TXGBE_CFG_VXLAN_GPE, ntohs(ti.port));
+		break;
+	case UDP_TUNNEL_TYPE_GENEVE:
+		wr32(wx, TXGBE_CFG_GENEVE, ntohs(ti.port));
+		break;
+	default:
+		break;
+	}
+
+	return 0;
+}
+
+static const struct udp_tunnel_nic_info txgbe_udp_tunnels = {
+	.sync_table	= txgbe_udp_tunnel_sync,
+	.flags		= UDP_TUNNEL_NIC_INFO_OPEN_ONLY,
+	.tables		= {
+		{ .n_entries = 1, .tunnel_types = UDP_TUNNEL_TYPE_VXLAN, },
+		{ .n_entries = 1, .tunnel_types = UDP_TUNNEL_TYPE_VXLAN_GPE, },
+		{ .n_entries = 1, .tunnel_types = UDP_TUNNEL_TYPE_GENEVE, },
+	},
+};
+
+static const struct net_device_ops txgbe_netdev_ops = {
+	.ndo_open               = txgbe_open,
+	.ndo_stop               = txgbe_close,
+	.ndo_change_mtu         = wx_change_mtu,
+	.ndo_start_xmit         = wx_xmit_frame,
+	.ndo_set_rx_mode        = wx_set_rx_mode,
+	.ndo_set_features       = wx_set_features,
+	.ndo_fix_features       = wx_fix_features,
+	.ndo_features_check     = wx_features_check,
+	.ndo_validate_addr      = eth_validate_addr,
+	.ndo_set_mac_address    = wx_set_mac,
+	.ndo_get_stats64        = wx_get_stats64,
+	.ndo_vlan_rx_add_vid    = wx_vlan_rx_add_vid,
+	.ndo_vlan_rx_kill_vid   = wx_vlan_rx_kill_vid,
+	.ndo_hwtstamp_set       = wx_hwtstamp_set,
+	.ndo_hwtstamp_get       = wx_hwtstamp_get,
+};
+
+/**
+ * txgbe_probe - Device Initialization Routine
+ * @pdev: PCI device information struct
+ * @ent: entry in txgbe_pci_tbl
+ *
+ * Returns 0 on success, negative on failure
+ *
+ * txgbe_probe initializes an adapter identified by a pci_dev structure.
+ * The OS initialization, configuring of the wx private structure,
+ * and a hardware reset occur.
+ **/
+static int txgbe_probe(struct pci_dev *pdev,
+		       const struct pci_device_id __always_unused *ent)
+{
+	struct net_device *netdev;
+	int err, expected_gts;
+	struct wx *wx = NULL;
+	struct txgbe *txgbe;
+
+	u16 eeprom_verh = 0, eeprom_verl = 0, offset = 0;
+	u16 eeprom_cfg_blkh = 0, eeprom_cfg_blkl = 0;
+	u16 build = 0, major = 0, patch = 0;
+	u32 etrack_id = 0;
+
+	err = pci_enable_device_mem(pdev);
+	if (err)
+		return err;
+
+	err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
+	if (err) {
+		dev_err(&pdev->dev,
+			"No usable DMA configuration, aborting\n");
+		goto err_pci_disable_dev;
+	}
+
+	err = pci_request_selected_regions(pdev,
+					   pci_select_bars(pdev, IORESOURCE_MEM),
+					   txgbe_driver_name);
+	if (err) {
+		dev_err(&pdev->dev,
+			"pci_request_selected_regions failed 0x%x\n", err);
+		goto err_pci_disable_dev;
+	}
+
+	pci_set_master(pdev);
+
+	netdev = devm_alloc_etherdev_mqs(&pdev->dev,
+					 sizeof(struct wx),
+					 TXGBE_MAX_TX_QUEUES,
+					 TXGBE_MAX_RX_QUEUES);
+	if (!netdev) {
+		err = -ENOMEM;
+		goto err_pci_release_regions;
+	}
+
+	SET_NETDEV_DEV(netdev, &pdev->dev);
+
+	wx = netdev_priv(netdev);
+	wx->netdev = netdev;
+	wx->pdev = pdev;
+
+	wx->msg_enable = (1 << DEFAULT_DEBUG_LEVEL_SHIFT) - 1;
+
+	wx->hw_addr = devm_ioremap(&pdev->dev,
+				   pci_resource_start(pdev, 0),
+				   pci_resource_len(pdev, 0));
+	if (!wx->hw_addr) {
+		err = -EIO;
+		goto err_pci_release_regions;
+	}
+
+	/* The sapphire supports up to 63 VFs per pf, but physical
+	 * function also need one pool for basic networking.
+	 */
+	pci_sriov_set_totalvfs(pdev, TXGBE_MAX_VFS_DRV_LIMIT);
+	wx->driver_name = txgbe_driver_name;
+	txgbe_set_ethtool_ops(netdev);
+	netdev->netdev_ops = &txgbe_netdev_ops;
+	netdev->udp_tunnel_nic_info = &txgbe_udp_tunnels;
+
+	/* setup the private structure */
+	err = txgbe_sw_init(wx);
+	if (err)
+		goto err_pci_release_regions;
+
+	/* check if flash load is done after hw power up */
+	err = wx_check_flash_load(wx, TXGBE_SPI_ILDR_STATUS_PERST);
+	if (err)
+		goto err_free_mac_table;
+	err = wx_check_flash_load(wx, TXGBE_SPI_ILDR_STATUS_PWRRST);
+	if (err)
+		goto err_free_mac_table;
+
+	err = wx_mng_present(wx);
+	if (err) {
+		dev_err(&pdev->dev, "Management capability is not present\n");
+		goto err_free_mac_table;
+	}
+
+	err = txgbe_reset_hw(wx);
+	if (err) {
+		dev_err(&pdev->dev, "HW Init failed: %d\n", err);
+		goto err_free_mac_table;
+	}
+
+	netdev->features = NETIF_F_SG |
+			   NETIF_F_TSO |
+			   NETIF_F_TSO6 |
+			   NETIF_F_RXHASH |
+			   NETIF_F_RXCSUM |
+			   NETIF_F_HW_CSUM;
+
+	netdev->gso_partial_features =  NETIF_F_GSO_ENCAP_ALL;
+	netdev->features |= netdev->gso_partial_features;
+	netdev->features |= NETIF_F_SCTP_CRC;
+	netdev->vlan_features |= netdev->features | NETIF_F_TSO_MANGLEID;
+	netdev->hw_enc_features |= netdev->vlan_features;
+	netdev->features |= NETIF_F_VLAN_FEATURES;
+	/* copy netdev features into list of user selectable features */
+	netdev->hw_features |= netdev->features | NETIF_F_RXALL;
+	netdev->hw_features |= NETIF_F_NTUPLE | NETIF_F_HW_TC;
+	netdev->features |= NETIF_F_HIGHDMA;
+	netdev->hw_features |= NETIF_F_GRO;
+	netdev->features |= NETIF_F_GRO;
+	netdev->hw_features |= NETIF_F_LRO;
+	netdev->features |= NETIF_F_LRO;
+	netdev->features |= NETIF_F_RX_UDP_TUNNEL_PORT;
+
+	netdev->priv_flags |= IFF_UNICAST_FLT;
+	netdev->priv_flags |= IFF_LIVE_ADDR_CHANGE;
+
+	netdev->min_mtu = ETH_MIN_MTU;
+	netdev->max_mtu = WX_MAX_JUMBO_FRAME_SIZE -
+			  (ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN);
+
+	/* make sure the EEPROM is good */
+	err = txgbe_validate_eeprom_checksum(wx, NULL);
+	if (err != 0) {
+		dev_err(&pdev->dev, "The EEPROM Checksum Is Not Valid\n");
+		wr32(wx, WX_MIS_RST, WX_MIS_RST_SW_RST);
+		err = -EIO;
+		goto err_free_mac_table;
+	}
+
+	eth_hw_addr_set(netdev, wx->mac.perm_addr);
+	wx_mac_set_default_filter(wx, wx->mac.perm_addr);
+
+	txgbe_init_service(wx);
+
+	err = wx_init_interrupt_scheme(wx);
+	if (err)
+		goto err_cancel_service;
+
+	/* Save off EEPROM version number and Option Rom version which
+	 * together make a unique identify for the eeprom
+	 */
+	wx_read_ee_hostif(wx,
+			  wx->eeprom.sw_region_offset + TXGBE_EEPROM_VERSION_H,
+			  &eeprom_verh);
+	wx_read_ee_hostif(wx,
+			  wx->eeprom.sw_region_offset + TXGBE_EEPROM_VERSION_L,
+			  &eeprom_verl);
+	etrack_id = (eeprom_verh << 16) | eeprom_verl;
+
+	wx_read_ee_hostif(wx,
+			  wx->eeprom.sw_region_offset + TXGBE_ISCSI_BOOT_CONFIG,
+			  &offset);
+
+	/* Make sure offset to SCSI block is valid */
+	if (!(offset == 0x0) && !(offset == 0xffff)) {
+		wx_read_ee_hostif(wx, offset + 0x84, &eeprom_cfg_blkh);
+		wx_read_ee_hostif(wx, offset + 0x83, &eeprom_cfg_blkl);
+
+		/* Only display Option Rom if exist */
+		if (eeprom_cfg_blkl && eeprom_cfg_blkh) {
+			major = eeprom_cfg_blkl >> 8;
+			build = (eeprom_cfg_blkl << 8) | (eeprom_cfg_blkh >> 8);
+			patch = eeprom_cfg_blkh & 0x00ff;
+
+			snprintf(wx->eeprom_id, sizeof(wx->eeprom_id),
+				 "0x%08x, %d.%d.%d", etrack_id, major, build,
+				 patch);
+		} else {
+			snprintf(wx->eeprom_id, sizeof(wx->eeprom_id),
+				 "0x%08x", etrack_id);
+		}
+	} else {
+		snprintf(wx->eeprom_id, sizeof(wx->eeprom_id),
+			 "0x%08x", etrack_id);
+	}
+
+	if (wx->mac.type == wx_mac_sp &&
+	    ((etrack_id & 0xfffff) < 0x20010))
+		dev_warn(&pdev->dev, "Please upgrade the firmware to 0x20010 or above.\n");
+
+	err = txgbe_test_hostif(wx);
+	if (err != 0) {
+		dev_err(&pdev->dev, "Mismatched Firmware version\n");
+		err = -EIO;
+		goto err_release_hw;
+	}
+
+	txgbe = devm_kzalloc(&pdev->dev, sizeof(*txgbe), GFP_KERNEL);
+	if (!txgbe) {
+		err = -ENOMEM;
+		goto err_release_hw;
+	}
+
+	txgbe->wx = wx;
+	wx->priv = txgbe;
+
+	txgbe_init_fdir(txgbe);
+
+	err = txgbe_init_phy(txgbe);
+	if (err)
+		goto err_release_hw;
+
+	err = register_netdev(netdev);
+	if (err)
+		goto err_remove_phy;
+
+	pci_set_drvdata(pdev, wx);
+
+	netif_tx_stop_all_queues(netdev);
+
+	/* calculate the expected PCIe bandwidth required for optimal
+	 * performance. Note that some older parts will never have enough
+	 * bandwidth due to being older generation PCIe parts. We clamp these
+	 * parts to ensure that no warning is displayed, as this could confuse
+	 * users otherwise.
+	 */
+	expected_gts = txgbe_enumerate_functions(wx) * 10;
+
+	/* don't check link if we failed to enumerate functions */
+	if (expected_gts > 0)
+		txgbe_check_minimum_link(wx);
+	else
+		dev_warn(&pdev->dev, "Failed to enumerate PF devices.\n");
+
+	return 0;
+
+err_remove_phy:
+	txgbe_remove_phy(txgbe);
+err_release_hw:
+	wx_clear_interrupt_scheme(wx);
+	wx_control_hw(wx, false);
+err_cancel_service:
+	timer_delete_sync(&wx->service_timer);
+	cancel_work_sync(&wx->service_task);
+err_free_mac_table:
+	kfree(wx->rss_key);
+	kfree(wx->mac_table);
+err_pci_release_regions:
+	pci_release_selected_regions(pdev,
+				     pci_select_bars(pdev, IORESOURCE_MEM));
+err_pci_disable_dev:
+	pci_disable_device(pdev);
+	return err;
+}
+
+/**
+ * txgbe_remove - Device Removal Routine
+ * @pdev: PCI device information struct
+ *
+ * txgbe_remove is called by the PCI subsystem to alert the driver
+ * that it should release a PCI device.  The could be caused by a
+ * Hot-Plug event, or because the driver is going to be removed from
+ * memory.
+ **/
+static void txgbe_remove(struct pci_dev *pdev)
+{
+	struct wx *wx = pci_get_drvdata(pdev);
+	struct txgbe *txgbe = wx->priv;
+	struct net_device *netdev;
+
+	netdev = wx->netdev;
+	wx_disable_sriov(wx);
+	unregister_netdev(netdev);
+	txgbe_fdir_filter_exit(wx);
+
+	timer_shutdown_sync(&wx->service_timer);
+	cancel_work_sync(&wx->service_task);
+
+	txgbe_remove_phy(txgbe);
+	wx_free_isb_resources(wx);
+
+	pci_release_selected_regions(pdev,
+				     pci_select_bars(pdev, IORESOURCE_MEM));
+
+	kfree(wx->rss_key);
+	kfree(wx->mac_table);
+	wx_clear_interrupt_scheme(wx);
+
+	pci_disable_device(pdev);
+}
+
+static struct pci_driver txgbe_driver = {
+	.name     = txgbe_driver_name,
+	.id_table = txgbe_pci_tbl,
+	.probe    = txgbe_probe,
+	.remove   = txgbe_remove,
+	.shutdown = txgbe_shutdown,
+	.sriov_configure = wx_pci_sriov_configure,
+};
+
+module_pci_driver(txgbe_driver);
+
+MODULE_DEVICE_TABLE(pci, txgbe_pci_tbl);
+MODULE_AUTHOR("Beijing WangXun Technology Co., Ltd, <software@trustnetic.com>");
+MODULE_DESCRIPTION("WangXun(R) 10/25/40 Gigabit PCI Express Network Driver");
+MODULE_LICENSE("GPL");

linux-7.2.3/drivers/net/ethernet/wangxun/txgbe/txgbe_phy.c

@@ -0,0 +1,678 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2015 - 2023 Beijing WangXun Technology Co., Ltd. */
+
+#include <linux/gpio/machine.h>
+#include <linux/gpio/driver.h>
+#include <linux/gpio/property.h>
+#include <linux/clk-provider.h>
+#include <linux/clkdev.h>
+#include <linux/i2c.h>
+#include <linux/pci.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include <linux/pcs/pcs-xpcs.h>
+#include <linux/phylink.h>
+
+#include "../libwx/wx_type.h"
+#include "../libwx/wx_lib.h"
+#include "../libwx/wx_ptp.h"
+#include "../libwx/wx_sriov.h"
+#include "../libwx/wx_mbx.h"
+#include "../libwx/wx_hw.h"
+#include "txgbe_type.h"
+#include "txgbe_aml.h"
+#include "txgbe_phy.h"
+#include "txgbe_hw.h"
+
+static int txgbe_swnodes_register(struct txgbe *txgbe)
+{
+	struct txgbe_nodes *nodes = &txgbe->nodes;
+	struct pci_dev *pdev = txgbe->wx->pdev;
+	struct software_node *swnodes;
+	u32 id;
+
+	id = pci_dev_id(pdev);
+
+	snprintf(nodes->gpio_name, sizeof(nodes->gpio_name), "txgbe_gpio-%x", id);
+	snprintf(nodes->i2c_name, sizeof(nodes->i2c_name), "txgbe_i2c-%x", id);
+	snprintf(nodes->sfp_name, sizeof(nodes->sfp_name), "txgbe_sfp-%x", id);
+	snprintf(nodes->phylink_name, sizeof(nodes->phylink_name), "txgbe_phylink-%x", id);
+
+	swnodes = nodes->swnodes;
+
+	/* GPIO 0: tx fault
+	 * GPIO 1: tx disable
+	 * GPIO 2: sfp module absent
+	 * GPIO 3: rx signal lost
+	 * GPIO 4: rate select, 1G(0) 10G(1)
+	 * GPIO 5: rate select, 1G(0) 10G(1)
+	 */
+	nodes->gpio_props[0] = PROPERTY_ENTRY_STRING("pinctrl-names", "default");
+	swnodes[SWNODE_GPIO] = NODE_PROP(nodes->gpio_name, nodes->gpio_props);
+	nodes->gpio0_ref[0] = SOFTWARE_NODE_REFERENCE(&swnodes[SWNODE_GPIO], 0, GPIO_ACTIVE_HIGH);
+	nodes->gpio1_ref[0] = SOFTWARE_NODE_REFERENCE(&swnodes[SWNODE_GPIO], 1, GPIO_ACTIVE_HIGH);
+	nodes->gpio2_ref[0] = SOFTWARE_NODE_REFERENCE(&swnodes[SWNODE_GPIO], 2, GPIO_ACTIVE_LOW);
+	nodes->gpio3_ref[0] = SOFTWARE_NODE_REFERENCE(&swnodes[SWNODE_GPIO], 3, GPIO_ACTIVE_HIGH);
+	nodes->gpio4_ref[0] = SOFTWARE_NODE_REFERENCE(&swnodes[SWNODE_GPIO], 4, GPIO_ACTIVE_HIGH);
+	nodes->gpio5_ref[0] = SOFTWARE_NODE_REFERENCE(&swnodes[SWNODE_GPIO], 5, GPIO_ACTIVE_HIGH);
+
+	nodes->i2c_props[0] = PROPERTY_ENTRY_STRING("compatible", "snps,designware-i2c");
+	nodes->i2c_props[1] = PROPERTY_ENTRY_BOOL("wx,i2c-snps-model");
+	nodes->i2c_props[2] = PROPERTY_ENTRY_U32("clock-frequency", I2C_MAX_STANDARD_MODE_FREQ);
+	swnodes[SWNODE_I2C] = NODE_PROP(nodes->i2c_name, nodes->i2c_props);
+	nodes->i2c_ref[0] = SOFTWARE_NODE_REFERENCE(&swnodes[SWNODE_I2C]);
+
+	nodes->sfp_props[0] = PROPERTY_ENTRY_STRING("compatible", "sff,sfp");
+	nodes->sfp_props[1] = PROPERTY_ENTRY_REF_ARRAY("i2c-bus", nodes->i2c_ref);
+	nodes->sfp_props[2] = PROPERTY_ENTRY_REF_ARRAY("tx-fault-gpios", nodes->gpio0_ref);
+	nodes->sfp_props[3] = PROPERTY_ENTRY_REF_ARRAY("tx-disable-gpios", nodes->gpio1_ref);
+	nodes->sfp_props[4] = PROPERTY_ENTRY_REF_ARRAY("mod-def0-gpios", nodes->gpio2_ref);
+	nodes->sfp_props[5] = PROPERTY_ENTRY_REF_ARRAY("los-gpios", nodes->gpio3_ref);
+	nodes->sfp_props[6] = PROPERTY_ENTRY_REF_ARRAY("rate-select1-gpios", nodes->gpio4_ref);
+	nodes->sfp_props[7] = PROPERTY_ENTRY_REF_ARRAY("rate-select0-gpios", nodes->gpio5_ref);
+	swnodes[SWNODE_SFP] = NODE_PROP(nodes->sfp_name, nodes->sfp_props);
+	nodes->sfp_ref[0] = SOFTWARE_NODE_REFERENCE(&swnodes[SWNODE_SFP]);
+
+	nodes->phylink_props[0] = PROPERTY_ENTRY_STRING("managed", "in-band-status");
+	nodes->phylink_props[1] = PROPERTY_ENTRY_REF_ARRAY("sfp", nodes->sfp_ref);
+	swnodes[SWNODE_PHYLINK] = NODE_PROP(nodes->phylink_name, nodes->phylink_props);
+
+	nodes->group[SWNODE_GPIO] = &swnodes[SWNODE_GPIO];
+	nodes->group[SWNODE_I2C] = &swnodes[SWNODE_I2C];
+	nodes->group[SWNODE_SFP] = &swnodes[SWNODE_SFP];
+	nodes->group[SWNODE_PHYLINK] = &swnodes[SWNODE_PHYLINK];
+
+	return software_node_register_node_group(nodes->group);
+}
+
+static int txgbe_pcs_read(struct mii_bus *bus, int addr, int devnum, int regnum)
+{
+	struct wx *wx  = bus->priv;
+	u32 offset, val;
+
+	if (addr)
+		return -EOPNOTSUPP;
+
+	offset = devnum << 16 | regnum;
+
+	/* Set the LAN port indicator to IDA_ADDR */
+	wr32(wx, TXGBE_XPCS_IDA_ADDR, offset);
+
+	/* Read the data from IDA_DATA register */
+	val = rd32(wx, TXGBE_XPCS_IDA_DATA);
+
+	return (u16)val;
+}
+
+static int txgbe_pcs_write(struct mii_bus *bus, int addr, int devnum, int regnum, u16 val)
+{
+	struct wx *wx = bus->priv;
+	u32 offset;
+
+	if (addr)
+		return -EOPNOTSUPP;
+
+	offset = devnum << 16 | regnum;
+
+	/* Set the LAN port indicator to IDA_ADDR */
+	wr32(wx, TXGBE_XPCS_IDA_ADDR, offset);
+
+	/* Write the data to IDA_DATA register */
+	wr32(wx, TXGBE_XPCS_IDA_DATA, val);
+
+	return 0;
+}
+
+static int txgbe_mdio_pcs_init(struct txgbe *txgbe)
+{
+	struct mii_bus *mii_bus;
+	struct phylink_pcs *pcs;
+	struct pci_dev *pdev;
+	struct wx *wx;
+	int ret = 0;
+
+	wx = txgbe->wx;
+	pdev = wx->pdev;
+
+	mii_bus = devm_mdiobus_alloc(&pdev->dev);
+	if (!mii_bus)
+		return -ENOMEM;
+
+	mii_bus->name = "txgbe_pcs_mdio_bus";
+	mii_bus->read_c45 = &txgbe_pcs_read;
+	mii_bus->write_c45 = &txgbe_pcs_write;
+	mii_bus->parent = &pdev->dev;
+	mii_bus->phy_mask = ~0;
+	mii_bus->priv = wx;
+	snprintf(mii_bus->id, MII_BUS_ID_SIZE, "txgbe_pcs-%x",
+		 pci_dev_id(pdev));
+
+	ret = devm_mdiobus_register(&pdev->dev, mii_bus);
+	if (ret)
+		return ret;
+
+	pcs = xpcs_create_pcs_mdiodev(mii_bus, 0);
+	if (IS_ERR(pcs))
+		return PTR_ERR(pcs);
+
+	txgbe->pcs = pcs;
+
+	return 0;
+}
+
+static struct phylink_pcs *txgbe_phylink_mac_select(struct phylink_config *config,
+						    phy_interface_t interface)
+{
+	struct wx *wx = phylink_to_wx(config);
+	struct txgbe *txgbe = wx->priv;
+
+	if (wx->media_type != wx_media_copper)
+		return txgbe->pcs;
+
+	return NULL;
+}
+
+static void txgbe_mac_config(struct phylink_config *config, unsigned int mode,
+			     const struct phylink_link_state *state)
+{
+}
+
+static void txgbe_mac_link_down(struct phylink_config *config,
+				unsigned int mode, phy_interface_t interface)
+{
+	struct wx *wx = phylink_to_wx(config);
+
+	wr32m(wx, WX_MAC_TX_CFG, WX_MAC_TX_CFG_TE, 0);
+
+	wx->speed = SPEED_UNKNOWN;
+	if (test_bit(WX_STATE_PTP_RUNNING, wx->state))
+		wx_ptp_reset_cyclecounter(wx);
+	/* ping all the active vfs to let them know we are going down */
+	wx_ping_all_vfs_with_link_status(wx, false);
+}
+
+static void txgbe_mac_link_up(struct phylink_config *config,
+			      struct phy_device *phy,
+			      unsigned int mode, phy_interface_t interface,
+			      int speed, int duplex,
+			      bool tx_pause, bool rx_pause)
+{
+	struct wx *wx = phylink_to_wx(config);
+	u32 txcfg, wdg;
+
+	wx_fc_enable(wx, tx_pause, rx_pause);
+
+	txcfg = rd32(wx, WX_MAC_TX_CFG);
+	txcfg &= ~WX_MAC_TX_CFG_SPEED_MASK;
+
+	switch (speed) {
+	case SPEED_10000:
+		txcfg |= WX_MAC_TX_CFG_SPEED_10G;
+		break;
+	case SPEED_1000:
+	case SPEED_100:
+	case SPEED_10:
+		txcfg |= WX_MAC_TX_CFG_SPEED_1G;
+		break;
+	default:
+		break;
+	}
+
+	wr32(wx, WX_MAC_TX_CFG, txcfg | WX_MAC_TX_CFG_TE);
+
+	/* Re configure MAC Rx */
+	wr32m(wx, WX_MAC_RX_CFG, WX_MAC_RX_CFG_RE, WX_MAC_RX_CFG_RE);
+	wr32(wx, WX_MAC_PKT_FLT, WX_MAC_PKT_FLT_PR);
+	wdg = rd32(wx, WX_MAC_WDG_TIMEOUT);
+	wr32(wx, WX_MAC_WDG_TIMEOUT, wdg);
+
+	wx->speed = speed;
+	wx->last_rx_ptp_check = jiffies;
+	if (test_bit(WX_STATE_PTP_RUNNING, wx->state))
+		wx_ptp_reset_cyclecounter(wx);
+	/* ping all the active vfs to let them know we are going up */
+	wx_ping_all_vfs_with_link_status(wx, true);
+}
+
+static int txgbe_mac_prepare(struct phylink_config *config, unsigned int mode,
+			     phy_interface_t interface)
+{
+	struct wx *wx = phylink_to_wx(config);
+
+	wr32m(wx, WX_MAC_TX_CFG, WX_MAC_TX_CFG_TE, 0);
+	wr32m(wx, WX_MAC_RX_CFG, WX_MAC_RX_CFG_RE, 0);
+
+	return txgbe_disable_sec_tx_path(wx);
+}
+
+static int txgbe_mac_finish(struct phylink_config *config, unsigned int mode,
+			    phy_interface_t interface)
+{
+	struct wx *wx = phylink_to_wx(config);
+
+	txgbe_enable_sec_tx_path(wx);
+	wr32m(wx, WX_MAC_RX_CFG, WX_MAC_RX_CFG_RE, WX_MAC_RX_CFG_RE);
+
+	return 0;
+}
+
+static const struct phylink_mac_ops txgbe_mac_ops = {
+	.mac_select_pcs = txgbe_phylink_mac_select,
+	.mac_prepare = txgbe_mac_prepare,
+	.mac_finish = txgbe_mac_finish,
+	.mac_config = txgbe_mac_config,
+	.mac_link_down = txgbe_mac_link_down,
+	.mac_link_up = txgbe_mac_link_up,
+};
+
+static int txgbe_phylink_init(struct txgbe *txgbe)
+{
+	struct fwnode_handle *fwnode = NULL;
+	struct phylink_config *config;
+	struct wx *wx = txgbe->wx;
+	phy_interface_t phy_mode;
+	struct phylink *phylink;
+
+	config = &wx->phylink_config;
+	config->dev = &wx->netdev->dev;
+	config->type = PHYLINK_NETDEV;
+	config->mac_capabilities = MAC_10000FD | MAC_1000FD | MAC_100FD |
+				   MAC_SYM_PAUSE | MAC_ASYM_PAUSE;
+
+	if (wx->media_type == wx_media_copper) {
+		phy_mode = PHY_INTERFACE_MODE_XAUI;
+		__set_bit(PHY_INTERFACE_MODE_XAUI, config->supported_interfaces);
+	} else {
+		phy_mode = PHY_INTERFACE_MODE_10GBASER;
+		fwnode = software_node_fwnode(txgbe->nodes.group[SWNODE_PHYLINK]);
+		__set_bit(PHY_INTERFACE_MODE_10GBASER, config->supported_interfaces);
+		__set_bit(PHY_INTERFACE_MODE_1000BASEX, config->supported_interfaces);
+		__set_bit(PHY_INTERFACE_MODE_SGMII, config->supported_interfaces);
+	}
+
+	phylink = phylink_create(config, fwnode, phy_mode, &txgbe_mac_ops);
+	if (IS_ERR(phylink))
+		return PTR_ERR(phylink);
+
+	if (wx->phydev) {
+		int ret;
+
+		ret = phylink_connect_phy(phylink, wx->phydev);
+		if (ret) {
+			phylink_destroy(phylink);
+			return ret;
+		}
+	}
+
+	wx->phylink = phylink;
+
+	return 0;
+}
+
+irqreturn_t txgbe_link_irq_handler(int irq, void *data)
+{
+	struct txgbe *txgbe = data;
+	struct wx *wx = txgbe->wx;
+	u32 status;
+	bool up;
+
+	status = rd32(wx, TXGBE_CFG_PORT_ST);
+	up = !!(status & TXGBE_CFG_PORT_ST_LINK_UP);
+
+	if (txgbe->pcs)
+		phylink_pcs_change(txgbe->pcs, up);
+	else
+		phylink_mac_change(wx->phylink, up);
+
+	return IRQ_HANDLED;
+}
+
+static int txgbe_gpio_get(struct gpio_chip *chip, unsigned int offset)
+{
+	struct wx *wx = gpiochip_get_data(chip);
+	int val;
+
+	val = rd32m(wx, WX_GPIO_EXT, BIT(offset));
+
+	return !!(val & BIT(offset));
+}
+
+static int txgbe_gpio_get_direction(struct gpio_chip *chip, unsigned int offset)
+{
+	struct wx *wx = gpiochip_get_data(chip);
+	u32 val;
+
+	val = rd32(wx, WX_GPIO_DDR);
+	if (BIT(offset) & val)
+		return GPIO_LINE_DIRECTION_OUT;
+
+	return GPIO_LINE_DIRECTION_IN;
+}
+
+static int txgbe_gpio_direction_in(struct gpio_chip *chip, unsigned int offset)
+{
+	struct wx *wx = gpiochip_get_data(chip);
+	unsigned long flags;
+
+	raw_spin_lock_irqsave(&wx->gpio_lock, flags);
+	wr32m(wx, WX_GPIO_DDR, BIT(offset), 0);
+	raw_spin_unlock_irqrestore(&wx->gpio_lock, flags);
+
+	return 0;
+}
+
+static int txgbe_gpio_direction_out(struct gpio_chip *chip, unsigned int offset,
+				    int val)
+{
+	struct wx *wx = gpiochip_get_data(chip);
+	unsigned long flags;
+	u32 set;
+
+	set = val ? BIT(offset) : 0;
+
+	raw_spin_lock_irqsave(&wx->gpio_lock, flags);
+	wr32m(wx, WX_GPIO_DR, BIT(offset), set);
+	wr32m(wx, WX_GPIO_DDR, BIT(offset), BIT(offset));
+	raw_spin_unlock_irqrestore(&wx->gpio_lock, flags);
+
+	return 0;
+}
+
+static int txgbe_gpio_init(struct txgbe *txgbe)
+{
+	struct gpio_chip *gc;
+	struct device *dev;
+	struct wx *wx;
+	int ret;
+
+	wx = txgbe->wx;
+	dev = &wx->pdev->dev;
+
+	raw_spin_lock_init(&wx->gpio_lock);
+
+	gc = devm_kzalloc(dev, sizeof(*gc), GFP_KERNEL);
+	if (!gc)
+		return -ENOMEM;
+
+	gc->label = devm_kasprintf(dev, GFP_KERNEL, "txgbe_gpio-%x",
+				   pci_dev_id(wx->pdev));
+	if (!gc->label)
+		return -ENOMEM;
+
+	gc->base = -1;
+	gc->ngpio = 6;
+	gc->owner = THIS_MODULE;
+	gc->parent = dev;
+	gc->fwnode = software_node_fwnode(txgbe->nodes.group[SWNODE_GPIO]);
+	gc->get = txgbe_gpio_get;
+	gc->get_direction = txgbe_gpio_get_direction;
+	gc->direction_input = txgbe_gpio_direction_in;
+	gc->direction_output = txgbe_gpio_direction_out;
+
+	ret = devm_gpiochip_add_data(dev, gc, wx);
+	if (ret)
+		return ret;
+
+	txgbe->gpio = gc;
+
+	return 0;
+}
+
+static int txgbe_clock_register(struct txgbe *txgbe)
+{
+	struct pci_dev *pdev = txgbe->wx->pdev;
+	struct clk_lookup *clock;
+	char clk_name[32];
+	struct clk *clk;
+
+	snprintf(clk_name, sizeof(clk_name), "i2c_designware.%d",
+		 pci_dev_id(pdev));
+
+	clk = clk_register_fixed_rate(NULL, clk_name, NULL, 0, 156250000);
+	if (IS_ERR(clk))
+		return PTR_ERR(clk);
+
+	clock = clkdev_create(clk, NULL, "%s", clk_name);
+	if (!clock) {
+		clk_unregister(clk);
+		return -ENOMEM;
+	}
+
+	txgbe->clk = clk;
+	txgbe->clock = clock;
+
+	return 0;
+}
+
+static int txgbe_i2c_read(void *context, unsigned int reg, unsigned int *val)
+{
+	struct wx *wx = context;
+
+	*val = rd32(wx, reg + TXGBE_I2C_BASE);
+
+	return 0;
+}
+
+static int txgbe_i2c_write(void *context, unsigned int reg, unsigned int val)
+{
+	struct wx *wx = context;
+
+	wr32(wx, reg + TXGBE_I2C_BASE, val);
+
+	return 0;
+}
+
+static const struct regmap_config i2c_regmap_config = {
+	.reg_bits = 32,
+	.val_bits = 32,
+	.reg_read = txgbe_i2c_read,
+	.reg_write = txgbe_i2c_write,
+	.fast_io = true,
+};
+
+static int txgbe_i2c_register(struct txgbe *txgbe)
+{
+	struct platform_device_info info = {};
+	struct platform_device *i2c_dev;
+	struct regmap *i2c_regmap;
+	struct pci_dev *pdev;
+	struct wx *wx;
+
+	wx = txgbe->wx;
+	pdev = wx->pdev;
+	i2c_regmap = devm_regmap_init(&pdev->dev, NULL, wx, &i2c_regmap_config);
+	if (IS_ERR(i2c_regmap)) {
+		wx_err(wx, "failed to init I2C regmap\n");
+		return PTR_ERR(i2c_regmap);
+	}
+
+	info.parent = &pdev->dev;
+	info.fwnode = software_node_fwnode(txgbe->nodes.group[SWNODE_I2C]);
+	info.name = "i2c_designware";
+	info.id = pci_dev_id(pdev);
+
+	info.res = &DEFINE_RES_IRQ(pdev->irq);
+	info.num_res = 1;
+	i2c_dev = platform_device_register_full(&info);
+	if (IS_ERR(i2c_dev))
+		return PTR_ERR(i2c_dev);
+
+	txgbe->i2c_dev = i2c_dev;
+
+	return 0;
+}
+
+static int txgbe_sfp_register(struct txgbe *txgbe)
+{
+	struct pci_dev *pdev = txgbe->wx->pdev;
+	struct platform_device_info info = {};
+	struct platform_device *sfp_dev;
+
+	info.parent = &pdev->dev;
+	info.fwnode = software_node_fwnode(txgbe->nodes.group[SWNODE_SFP]);
+	info.name = "sfp";
+	info.id = pci_dev_id(pdev);
+	sfp_dev = platform_device_register_full(&info);
+	if (IS_ERR(sfp_dev))
+		return PTR_ERR(sfp_dev);
+
+	txgbe->sfp_dev = sfp_dev;
+
+	return 0;
+}
+
+static int txgbe_ext_phy_init(struct txgbe *txgbe)
+{
+	struct phy_device *phydev;
+	struct mii_bus *mii_bus;
+	struct pci_dev *pdev;
+	struct wx *wx;
+	int ret = 0;
+
+	wx = txgbe->wx;
+	pdev = wx->pdev;
+
+	mii_bus = devm_mdiobus_alloc(&pdev->dev);
+	if (!mii_bus)
+		return -ENOMEM;
+
+	mii_bus->name = "txgbe_mii_bus";
+	mii_bus->read_c45 = &wx_phy_read_reg_mdi_c45;
+	mii_bus->write_c45 = &wx_phy_write_reg_mdi_c45;
+	mii_bus->parent = &pdev->dev;
+	mii_bus->phy_mask = GENMASK(31, 1);
+	mii_bus->priv = wx;
+	snprintf(mii_bus->id, MII_BUS_ID_SIZE, "txgbe-%x", pci_dev_id(pdev));
+
+	ret = devm_mdiobus_register(&pdev->dev, mii_bus);
+	if (ret) {
+		wx_err(wx, "failed to register MDIO bus: %d\n", ret);
+		return ret;
+	}
+
+	phydev = phy_find_first(mii_bus);
+	if (!phydev) {
+		wx_err(wx, "no PHY found\n");
+		return -ENODEV;
+	}
+
+	phy_attached_info(phydev);
+
+	wx->link = 0;
+	wx->speed = 0;
+	wx->duplex = 0;
+	wx->phydev = phydev;
+
+	ret = txgbe_phylink_init(txgbe);
+	if (ret) {
+		wx_err(wx, "failed to init phylink: %d\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+int txgbe_init_phy(struct txgbe *txgbe)
+{
+	struct wx *wx = txgbe->wx;
+	int ret;
+
+	switch (wx->mac.type) {
+	case wx_mac_aml40:
+	case wx_mac_aml:
+		return txgbe_phylink_init_aml(txgbe);
+	case wx_mac_sp:
+		if (wx->media_type == wx_media_copper)
+			return txgbe_ext_phy_init(txgbe);
+		break;
+	default:
+		break;
+	}
+
+	ret = txgbe_swnodes_register(txgbe);
+	if (ret) {
+		wx_err(wx, "failed to register software nodes\n");
+		return ret;
+	}
+
+	ret = txgbe_mdio_pcs_init(txgbe);
+	if (ret) {
+		wx_err(wx, "failed to init mdio pcs: %d\n", ret);
+		goto err_unregister_swnode;
+	}
+
+	ret = txgbe_phylink_init(txgbe);
+	if (ret) {
+		wx_err(wx, "failed to init phylink\n");
+		goto err_destroy_xpcs;
+	}
+
+	ret = txgbe_gpio_init(txgbe);
+	if (ret) {
+		wx_err(wx, "failed to init gpio\n");
+		goto err_destroy_phylink;
+	}
+
+	ret = txgbe_clock_register(txgbe);
+	if (ret) {
+		wx_err(wx, "failed to register clock: %d\n", ret);
+		goto err_destroy_phylink;
+	}
+
+	ret = txgbe_i2c_register(txgbe);
+	if (ret) {
+		wx_err(wx, "failed to init i2c interface: %d\n", ret);
+		goto err_unregister_clk;
+	}
+
+	ret = txgbe_sfp_register(txgbe);
+	if (ret) {
+		wx_err(wx, "failed to register sfp\n");
+		goto err_unregister_i2c;
+	}
+
+	return 0;
+
+err_unregister_i2c:
+	platform_device_unregister(txgbe->i2c_dev);
+err_unregister_clk:
+	clkdev_drop(txgbe->clock);
+	clk_unregister(txgbe->clk);
+err_destroy_phylink:
+	phylink_destroy(wx->phylink);
+err_destroy_xpcs:
+	xpcs_destroy_pcs(txgbe->pcs);
+err_unregister_swnode:
+	software_node_unregister_node_group(txgbe->nodes.group);
+
+	return ret;
+}
+
+void txgbe_remove_phy(struct txgbe *txgbe)
+{
+	switch (txgbe->wx->mac.type) {
+	case wx_mac_aml40:
+	case wx_mac_aml:
+		phylink_destroy(txgbe->wx->phylink);
+		return;
+	case wx_mac_sp:
+		if (txgbe->wx->media_type == wx_media_copper) {
+			rtnl_lock();
+			phylink_disconnect_phy(txgbe->wx->phylink);
+			rtnl_unlock();
+			phylink_destroy(txgbe->wx->phylink);
+			return;
+		}
+		break;
+	default:
+		break;
+	}
+
+	platform_device_unregister(txgbe->sfp_dev);
+	platform_device_unregister(txgbe->i2c_dev);
+	clkdev_drop(txgbe->clock);
+	clk_unregister(txgbe->clk);
+	phylink_destroy(txgbe->wx->phylink);
+	xpcs_destroy_pcs(txgbe->pcs);
+	software_node_unregister_node_group(txgbe->nodes.group);
+}

linux-7.2.3/drivers/net/ethernet/wangxun/txgbe/txgbe_phy.h

@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2015 - 2023 Beijing WangXun Technology Co., Ltd. */
+
+#ifndef _TXGBE_PHY_H_
+#define _TXGBE_PHY_H_
+
+irqreturn_t txgbe_link_irq_handler(int irq, void *data);
+int txgbe_init_phy(struct txgbe *txgbe);
+void txgbe_remove_phy(struct txgbe *txgbe);
+
+#endif /* _TXGBE_PHY_H_ */

linux-7.2.3/drivers/net/ethernet/wangxun/txgbe/txgbe_type.h

@@ -0,0 +1,485 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2015 - 2022 Beijing WangXun Technology Co., Ltd. */
+
+#ifndef _TXGBE_TYPE_H_
+#define _TXGBE_TYPE_H_
+
+#include <linux/property.h>
+#include <linux/irq.h>
+#include <linux/phy.h>
+#include "../libwx/wx_type.h"
+
+/* Device IDs */
+#define TXGBE_DEV_ID_SP1000                     0x1001
+#define TXGBE_DEV_ID_WX1820                     0x2001
+#define TXGBE_DEV_ID_AML5010                    0x5010
+#define TXGBE_DEV_ID_AML5110                    0x5110
+#define TXGBE_DEV_ID_AML5025                    0x5025
+#define TXGBE_DEV_ID_AML5125                    0x5125
+#define TXGBE_DEV_ID_AML5040                    0x5040
+#define TXGBE_DEV_ID_AML5140                    0x5140
+
+/* Subsystem IDs */
+/* SFP */
+#define TXGBE_ID_SP1000_SFP                     0x0000
+#define TXGBE_ID_WX1820_SFP                     0x2000
+#define TXGBE_ID_SFP                            0x00
+
+/* copper */
+#define TXGBE_ID_SP1000_XAUI                    0x1010
+#define TXGBE_ID_WX1820_XAUI                    0x2010
+#define TXGBE_ID_XAUI                           0x10
+#define TXGBE_ID_SP1000_SGMII                   0x1020
+#define TXGBE_ID_WX1820_SGMII                   0x2020
+#define TXGBE_ID_SGMII                          0x20
+/* backplane */
+#define TXGBE_ID_SP1000_KR_KX_KX4               0x1030
+#define TXGBE_ID_WX1820_KR_KX_KX4               0x2030
+#define TXGBE_ID_KR_KX_KX4                      0x30
+/* MAC Interface */
+#define TXGBE_ID_SP1000_MAC_XAUI                0x1040
+#define TXGBE_ID_WX1820_MAC_XAUI                0x2040
+#define TXGBE_ID_MAC_XAUI                       0x40
+#define TXGBE_ID_SP1000_MAC_SGMII               0x1060
+#define TXGBE_ID_WX1820_MAC_SGMII               0x2060
+#define TXGBE_ID_MAC_SGMII                      0x60
+
+/* Combined interface*/
+#define TXGBE_ID_SFI_XAUI			0x50
+
+/* Revision ID */
+#define TXGBE_SP_MPW  1
+
+/**************** SP Registers ****************************/
+/* chip control Registers */
+#define TXGBE_MIS_RST                           0x1000C
+#define TXGBE_MIS_RST_MAC_RST(_i)               BIT(20 - (_i) * 3)
+#define TXGBE_MIS_PRB_CTL                       0x10010
+#define TXGBE_MIS_PRB_CTL_LAN_UP(_i)            BIT(1 - (_i))
+/* FMGR Registers */
+#define TXGBE_SPI_ILDR_STATUS                   0x10120
+#define TXGBE_SPI_ILDR_STATUS_PERST             BIT(0) /* PCIE_PERST is done */
+#define TXGBE_SPI_ILDR_STATUS_PWRRST            BIT(1) /* Power on reset is done */
+#define TXGBE_SPI_ILDR_STATUS_LAN_SW_RST(_i)    BIT((_i) + 9) /* lan soft reset done */
+
+/* Sensors for PVT(Process Voltage Temperature) */
+#define TXGBE_TS_CTL                            0x10300
+#define TXGBE_TS_CTL_EVAL_MD                    BIT(31)
+
+/* MAC Misc Registers */
+#define TXGBE_MAC_MISC_CTL                      0x11F00
+#define TXGBE_MAC_MISC_CTL_LINK_STS_MOD         BIT(0)
+#define TXGBE_MAC_MISC_CTL_LINK_PCS             FIELD_PREP(BIT(0), 0)
+#define TXGBE_MAC_MISC_CTL_LINK_BOTH            FIELD_PREP(BIT(0), 1)
+/* GPIO register bit */
+#define TXGBE_GPIOBIT_0                         BIT(0) /* I:tx fault */
+#define TXGBE_GPIOBIT_1                         BIT(1) /* O:tx disabled */
+#define TXGBE_GPIOBIT_2                         BIT(2) /* I:sfp module absent */
+#define TXGBE_GPIOBIT_3                         BIT(3) /* I:rx signal lost */
+#define TXGBE_GPIOBIT_4                         BIT(4) /* O:rate select, 1G(0) 10G(1) */
+#define TXGBE_GPIOBIT_5                         BIT(5) /* O:rate select, 1G(0) 10G(1) */
+
+/* Extended Interrupt Enable Set */
+#define TXGBE_PX_MISC_ETH_LKDN                  BIT(8)
+#define TXGBE_PX_MISC_DEV_RST                   BIT(10)
+#define TXGBE_PX_MISC_IC_TIMESYNC               BIT(11)
+#define TXGBE_PX_MISC_ETH_EVENT                 BIT(17)
+#define TXGBE_PX_MISC_ETH_LK                    BIT(18)
+#define TXGBE_PX_MISC_ETH_AN                    BIT(19)
+#define TXGBE_PX_MISC_INT_ERR                   BIT(20)
+#define TXGBE_PX_MISC_IC_VF_MBOX                BIT(23)
+#define TXGBE_PX_MISC_GPIO                      BIT(26)
+#define TXGBE_PX_MISC_IEN_MASK                            \
+	(TXGBE_PX_MISC_ETH_LKDN | TXGBE_PX_MISC_DEV_RST | \
+	 TXGBE_PX_MISC_ETH_EVENT | TXGBE_PX_MISC_ETH_LK | \
+	 TXGBE_PX_MISC_ETH_AN | TXGBE_PX_MISC_INT_ERR | \
+	 TXGBE_PX_MISC_IC_VF_MBOX | TXGBE_PX_MISC_IC_TIMESYNC)
+
+/* Port cfg registers */
+#define TXGBE_CFG_PORT_ST                       0x14404
+#define TXGBE_CFG_PORT_ST_LINK_UP               BIT(0)
+#define TXGBE_CFG_PORT_ST_LINK_AML_40G          BIT(2)
+#define TXGBE_CFG_PORT_ST_LINK_AML_25G          BIT(3)
+#define TXGBE_CFG_PORT_ST_LINK_AML_10G          BIT(4)
+#define TXGBE_CFG_VXLAN                         0x14410
+#define TXGBE_CFG_VXLAN_GPE                     0x14414
+#define TXGBE_CFG_GENEVE                        0x14418
+
+/* I2C registers */
+#define TXGBE_I2C_BASE                          0x14900
+
+/************************************** ETH PHY ******************************/
+#define TXGBE_XPCS_IDA_ADDR                     0x13000
+#define TXGBE_XPCS_IDA_DATA                     0x13004
+
+/********************************* Flow Director *****************************/
+#define TXGBE_RDB_FDIR_DROP_QUEUE               127
+#define TXGBE_RDB_FDIR_CTL                      0x19500
+#define TXGBE_RDB_FDIR_CTL_INIT_DONE            BIT(3)
+#define TXGBE_RDB_FDIR_CTL_PERFECT_MATCH        BIT(4)
+#define TXGBE_RDB_FDIR_CTL_DROP_Q(v)            FIELD_PREP(GENMASK(14, 8), v)
+#define TXGBE_RDB_FDIR_CTL_HASH_BITS(v)         FIELD_PREP(GENMASK(23, 20), v)
+#define TXGBE_RDB_FDIR_CTL_MAX_LENGTH(v)        FIELD_PREP(GENMASK(27, 24), v)
+#define TXGBE_RDB_FDIR_CTL_FULL_THRESH(v)       FIELD_PREP(GENMASK(31, 28), v)
+#define TXGBE_RDB_FDIR_IP6(_i)                  (0x1950C + ((_i) * 4)) /* 0-2 */
+#define TXGBE_RDB_FDIR_SA                       0x19518
+#define TXGBE_RDB_FDIR_DA                       0x1951C
+#define TXGBE_RDB_FDIR_PORT                     0x19520
+#define TXGBE_RDB_FDIR_PORT_DESTINATION_SHIFT   16
+#define TXGBE_RDB_FDIR_FLEX                     0x19524
+#define TXGBE_RDB_FDIR_FLEX_FLEX_SHIFT          16
+#define TXGBE_RDB_FDIR_HASH                     0x19528
+#define TXGBE_RDB_FDIR_HASH_SIG_SW_INDEX(v)     FIELD_PREP(GENMASK(31, 16), v)
+#define TXGBE_RDB_FDIR_HASH_BUCKET_VALID        BIT(15)
+#define TXGBE_RDB_FDIR_CMD                      0x1952C
+#define TXGBE_RDB_FDIR_CMD_CMD_MASK             GENMASK(1, 0)
+#define TXGBE_RDB_FDIR_CMD_CMD(v)               FIELD_PREP(GENMASK(1, 0), v)
+#define TXGBE_RDB_FDIR_CMD_CMD_ADD_FLOW         TXGBE_RDB_FDIR_CMD_CMD(1)
+#define TXGBE_RDB_FDIR_CMD_CMD_REMOVE_FLOW      TXGBE_RDB_FDIR_CMD_CMD(2)
+#define TXGBE_RDB_FDIR_CMD_CMD_QUERY_REM_FILT   TXGBE_RDB_FDIR_CMD_CMD(3)
+#define TXGBE_RDB_FDIR_CMD_FILTER_VALID         BIT(2)
+#define TXGBE_RDB_FDIR_CMD_FILTER_UPDATE        BIT(3)
+#define TXGBE_RDB_FDIR_CMD_FLOW_TYPE(v)         FIELD_PREP(GENMASK(6, 5), v)
+#define TXGBE_RDB_FDIR_CMD_DROP                 BIT(9)
+#define TXGBE_RDB_FDIR_CMD_LAST                 BIT(11)
+#define TXGBE_RDB_FDIR_CMD_QUEUE_EN             BIT(15)
+#define TXGBE_RDB_FDIR_CMD_RX_QUEUE(v)          FIELD_PREP(GENMASK(22, 16), v)
+#define TXGBE_RDB_FDIR_CMD_VT_POOL(v)           FIELD_PREP(GENMASK(29, 24), v)
+#define TXGBE_RDB_FDIR_DA4_MSK                  0x1953C
+#define TXGBE_RDB_FDIR_SA4_MSK                  0x19540
+#define TXGBE_RDB_FDIR_TCP_MSK                  0x19544
+#define TXGBE_RDB_FDIR_UDP_MSK                  0x19548
+#define TXGBE_RDB_FDIR_SCTP_MSK                 0x19560
+#define TXGBE_RDB_FDIR_HKEY                     0x19568
+#define TXGBE_RDB_FDIR_SKEY                     0x1956C
+#define TXGBE_RDB_FDIR_OTHER_MSK                0x19570
+#define TXGBE_RDB_FDIR_OTHER_MSK_POOL           BIT(2)
+#define TXGBE_RDB_FDIR_OTHER_MSK_L4P            BIT(3)
+#define TXGBE_RDB_FDIR_FLEX_CFG(_i)             (0x19580 + ((_i) * 4))
+#define TXGBE_RDB_FDIR_FLEX_CFG_FIELD0          GENMASK(7, 0)
+#define TXGBE_RDB_FDIR_FLEX_CFG_BASE_MAC        FIELD_PREP(GENMASK(1, 0), 0)
+#define TXGBE_RDB_FDIR_FLEX_CFG_MSK             BIT(2)
+#define TXGBE_RDB_FDIR_FLEX_CFG_OFST(v)         FIELD_PREP(GENMASK(7, 3), v)
+
+/*************************** Amber Lite Registers ****************************/
+#define TXGBE_PX_PF_BME                         0x4B8
+#define TXGBE_AML_MAC_TX_CFG                    0x11000
+#define TXGBE_AML_MAC_TX_CFG_TE                 BIT(0)
+#define TXGBE_AML_MAC_TX_CFG_SPEED_MASK         GENMASK(30, 27)
+#define TXGBE_AML_MAC_TX_CFG_SPEED_40G          FIELD_PREP(GENMASK(30, 27), 0)
+#define TXGBE_AML_MAC_TX_CFG_SPEED_25G          FIELD_PREP(GENMASK(30, 27), 2)
+#define TXGBE_AML_MAC_TX_CFG_SPEED_10G          FIELD_PREP(GENMASK(30, 27), 8)
+#define TXGBE_RDM_RSC_CTL                       0x1200C
+#define TXGBE_RDM_RSC_CTL_FREE_CTL              BIT(7)
+
+/* Checksum and EEPROM pointers */
+#define TXGBE_EEPROM_LAST_WORD                  0x800
+#define TXGBE_EEPROM_CHECKSUM                   0x2F
+#define TXGBE_EEPROM_SUM                        0xBABA
+#define TXGBE_EEPROM_VERSION_L                  0x1D
+#define TXGBE_EEPROM_VERSION_H                  0x1E
+#define TXGBE_ISCSI_BOOT_CONFIG                 0x07
+#define TXGBE_EEPROM_I2C_SRART_PTR              0x580
+#define TXGBE_EEPROM_I2C_END_PTR                0x800
+
+#define TXGBE_MAX_MSIX_VECTORS          64
+#define TXGBE_MAX_FDIR_INDICES          63
+#define TXGBE_MAX_RSS_INDICES           63
+
+#define TXGBE_MAX_RX_QUEUES   (TXGBE_MAX_FDIR_INDICES + 1)
+#define TXGBE_MAX_TX_QUEUES   (TXGBE_MAX_FDIR_INDICES + 1)
+
+#define TXGBE_MAX_TXQ        128
+#define TXGBE_MAX_RXQ        128
+#define TXGBE_RAR_ENTRIES    128
+#define TXGBE_MC_TBL_SIZE    128
+#define TXGBE_VFT_TBL_SIZE   128
+#define TXGBE_RX_PB_SIZE     512
+#define TXGBE_TDB_PB_SZ      (160 * 1024) /* 160KB Packet Buffer */
+
+#define TXGBE_MAX_VFS_DRV_LIMIT                 63
+
+#define TXGBE_DEFAULT_ATR_SAMPLE_RATE           20
+
+/* Software ATR hash keys */
+#define TXGBE_ATR_BUCKET_HASH_KEY               0x3DAD14E2
+#define TXGBE_ATR_SIGNATURE_HASH_KEY            0x174D3614
+
+/* Software ATR input stream values and masks */
+#define TXGBE_ATR_HASH_MASK                     0x7fff
+#define TXGBE_ATR_L4TYPE_MASK                   0x3
+#define TXGBE_ATR_L4TYPE_UDP                    0x1
+#define TXGBE_ATR_L4TYPE_TCP                    0x2
+#define TXGBE_ATR_L4TYPE_SCTP                   0x3
+#define TXGBE_ATR_L4TYPE_IPV6_MASK              0x4
+#define TXGBE_ATR_L4TYPE_TUNNEL_MASK            0x10
+
+enum txgbe_atr_flow_type {
+	TXGBE_ATR_FLOW_TYPE_IPV4                = 0x0,
+	TXGBE_ATR_FLOW_TYPE_UDPV4               = 0x1,
+	TXGBE_ATR_FLOW_TYPE_TCPV4               = 0x2,
+	TXGBE_ATR_FLOW_TYPE_SCTPV4              = 0x3,
+	TXGBE_ATR_FLOW_TYPE_IPV6                = 0x4,
+	TXGBE_ATR_FLOW_TYPE_UDPV6               = 0x5,
+	TXGBE_ATR_FLOW_TYPE_TCPV6               = 0x6,
+	TXGBE_ATR_FLOW_TYPE_SCTPV6              = 0x7,
+	TXGBE_ATR_FLOW_TYPE_TUNNELED_IPV4       = 0x10,
+	TXGBE_ATR_FLOW_TYPE_TUNNELED_UDPV4      = 0x11,
+	TXGBE_ATR_FLOW_TYPE_TUNNELED_TCPV4      = 0x12,
+	TXGBE_ATR_FLOW_TYPE_TUNNELED_SCTPV4     = 0x13,
+	TXGBE_ATR_FLOW_TYPE_TUNNELED_IPV6       = 0x14,
+	TXGBE_ATR_FLOW_TYPE_TUNNELED_UDPV6      = 0x15,
+	TXGBE_ATR_FLOW_TYPE_TUNNELED_TCPV6      = 0x16,
+	TXGBE_ATR_FLOW_TYPE_TUNNELED_SCTPV6     = 0x17,
+};
+
+/* Flow Director ATR input struct. */
+union txgbe_atr_input {
+	/* Byte layout in order, all values with MSB first:
+	 *
+	 * vm_pool    - 1 byte
+	 * flow_type  - 1 byte
+	 * vlan_id    - 2 bytes
+	 * dst_ip     - 16 bytes
+	 * src_ip     - 16 bytes
+	 * src_port   - 2 bytes
+	 * dst_port   - 2 bytes
+	 * flex_bytes - 2 bytes
+	 * bkt_hash   - 2 bytes
+	 */
+	struct {
+		u8 vm_pool;
+		u8 flow_type;
+		__be16 vlan_id;
+		__be32 dst_ip[4];
+		__be32 src_ip[4];
+		__be16 src_port;
+		__be16 dst_port;
+		__be16 flex_bytes;
+		__be16 bkt_hash;
+	} formatted;
+	__be32 dword_stream[11];
+};
+
+/* Flow Director compressed ATR hash input struct */
+union txgbe_atr_hash_dword {
+	struct {
+		u8 vm_pool;
+		u8 flow_type;
+		__be16 vlan_id;
+	} formatted;
+	__be32 ip;
+	struct {
+		__be16 src;
+		__be16 dst;
+	} port;
+	__be16 flex_bytes;
+	__be32 dword;
+};
+
+enum txgbe_fdir_pballoc_type {
+	TXGBE_FDIR_PBALLOC_NONE = 0,
+	TXGBE_FDIR_PBALLOC_64K  = 1,
+	TXGBE_FDIR_PBALLOC_128K = 2,
+	TXGBE_FDIR_PBALLOC_256K = 3,
+};
+
+struct txgbe_fdir_filter {
+	struct hlist_node fdir_node;
+	union txgbe_atr_input filter;
+	u16 sw_idx;
+	u64 action;
+};
+
+/* TX/RX descriptor defines */
+#define TXGBE_DEFAULT_TXD               512
+#define TXGBE_DEFAULT_TX_WORK           256
+
+#if (PAGE_SIZE < 8192)
+#define TXGBE_DEFAULT_RXD               512
+#define TXGBE_DEFAULT_RX_WORK           256
+#else
+#define TXGBE_DEFAULT_RXD               256
+#define TXGBE_DEFAULT_RX_WORK           128
+#endif
+
+#define TXGBE_INTR_MISC(A)    BIT((A)->num_q_vectors)
+#define TXGBE_INTR_QALL(A)    (TXGBE_INTR_MISC(A) - 1)
+
+#define TXGBE_MAX_EITR        GENMASK(11, 3)
+
+extern char txgbe_driver_name[];
+
+void txgbe_down(struct wx *wx);
+void txgbe_up(struct wx *wx);
+int txgbe_setup_tc(struct net_device *dev, u8 tc);
+void txgbe_do_reset(struct net_device *netdev);
+
+#define DECLARE_PHY_INTERFACE_MASK_ZERO(name) \
+	unsigned long name[PHY_INTERFACE_MODE_MAX] = { 0, }
+
+#define TXGBE_LINK_SPEED_UNKNOWN        0
+#define TXGBE_LINK_SPEED_10GB_FULL      4
+#define TXGBE_LINK_SPEED_25GB_FULL      0x10
+#define TXGBE_LINK_SPEED_40GB_FULL      0x20
+
+#define TXGBE_SFF_IDENTIFIER_SFP        0x3
+#define TXGBE_SFF_IDENTIFIER_QSFP       0xC
+#define TXGBE_SFF_IDENTIFIER_QSFP_PLUS  0xD
+#define TXGBE_SFF_IDENTIFIER_QSFP28     0x11
+#define TXGBE_SFF_DA_PASSIVE_CABLE      0x4
+#define TXGBE_SFF_DA_ACTIVE_CABLE       0x8
+#define TXGBE_SFF_DA_SPEC_ACTIVE_LIMIT  0x4
+#define TXGBE_SFF_FCPI4_LIMITING        0x3
+#define TXGBE_SFF_10GBASESR_CAPABLE     0x10
+#define TXGBE_SFF_10GBASELR_CAPABLE     0x20
+#define TXGBE_SFF_25GBASESR_CAPABLE     0x2
+#define TXGBE_SFF_25GBASELR_CAPABLE     0x3
+#define TXGBE_SFF_25GBASEER_CAPABLE     0x4
+#define TXGBE_SFF_25GBASECR_91FEC       0xB
+#define TXGBE_SFF_25GBASECR_74FEC       0xC
+#define TXGBE_SFF_25GBASECR_NOFEC       0xD
+#define TXGBE_SFF_ETHERNET_RSRVD        BIT(7)
+#define TXGBE_SFF_ETHERNET_40G_CR4      BIT(3)
+#define TXGBE_SFF_ETHERNET_40G_SR4      BIT(2)
+#define TXGBE_SFF_ETHERNET_40G_LR4      BIT(1)
+#define TXGBE_SFF_ETHERNET_40G_ACTIVE   BIT(0)
+#define TXGBE_SFF_ETHERNET_100G_CR4     0xB
+
+#define TXGBE_PHY_FEC_RS                BIT(0)
+#define TXGBE_PHY_FEC_BASER             BIT(1)
+#define TXGBE_PHY_FEC_OFF               BIT(2)
+#define TXGBE_PHY_FEC_AUTO              (TXGBE_PHY_FEC_OFF | \
+					 TXGBE_PHY_FEC_BASER |\
+					 TXGBE_PHY_FEC_RS)
+
+#define FW_PHY_GET_LINK_CMD             0xC0
+#define FW_PHY_SET_LINK_CMD             0xC1
+#define FW_GET_MODULE_INFO_CMD          0xC5
+#define FW_READ_EEPROM_CMD              0xC6
+
+struct txgbe_sff_id {
+	u8 identifier;		/* A0H 0x00 */
+	u8 com_1g_code;		/* A0H 0x06 */
+	u8 com_10g_code;	/* A0H 0x03 */
+	u8 com_25g_code;	/* A0H 0x24 */
+	u8 cable_spec;		/* A0H 0x3C */
+	u8 cable_tech;		/* A0H 0x08 */
+	u8 vendor_oui0;		/* A0H 0x25 */
+	u8 vendor_oui1;		/* A0H 0x26 */
+	u8 vendor_oui2;		/* A0H 0x27 */
+	u8 transceiver_type;	/* A0H 0x83 */
+	u8 sff_opt1;		/* A0H 0xC0 */
+	u8 reserved[5];
+};
+
+struct txgbe_hic_get_module_info {
+	struct wx_hic_hdr hdr;
+	struct txgbe_sff_id id;
+};
+
+struct txgbe_hic_ephy_setlink {
+	struct wx_hic_hdr hdr;
+	u8 speed;
+	u8 duplex;
+	u8 autoneg;
+	u8 fec_mode;
+	u8 resv[4];
+};
+
+struct txgbe_hic_ephy_getlink {
+	struct wx_hic_hdr hdr;
+	u8 speed;
+	u8 duplex;
+	u8 autoneg;
+	u8 flow_ctl;
+	u8 power;
+	u8 fec_mode;
+	u8 resv[6];
+};
+
+struct txgbe_hic_i2c_read {
+	struct wx_hic_hdr hdr;
+	__be32 offset;
+	__be32 length;
+	u8 page;
+	u8 bank;
+	u8 i2c_address;
+	u8 resv;
+};
+
+#define NODE_PROP(_NAME, _PROP)			\
+	(const struct software_node) {		\
+		.name = _NAME,			\
+		.properties = _PROP,		\
+	}
+
+enum txgbe_swnodes {
+	SWNODE_GPIO = 0,
+	SWNODE_I2C,
+	SWNODE_SFP,
+	SWNODE_PHYLINK,
+	SWNODE_MAX
+};
+
+struct txgbe_nodes {
+	char gpio_name[32];
+	char i2c_name[32];
+	char sfp_name[32];
+	char phylink_name[32];
+	struct property_entry gpio_props[2];
+	struct property_entry i2c_props[4];
+	struct property_entry sfp_props[9];
+	struct property_entry phylink_props[3];
+	struct software_node_ref_args i2c_ref[1];
+	struct software_node_ref_args gpio0_ref[1];
+	struct software_node_ref_args gpio1_ref[1];
+	struct software_node_ref_args gpio2_ref[1];
+	struct software_node_ref_args gpio3_ref[1];
+	struct software_node_ref_args gpio4_ref[1];
+	struct software_node_ref_args gpio5_ref[1];
+	struct software_node_ref_args sfp_ref[1];
+	struct software_node swnodes[SWNODE_MAX];
+	const struct software_node *group[SWNODE_MAX + 1];
+};
+
+enum txgbe_misc_irqs {
+	TXGBE_IRQ_LINK = 0,
+	TXGBE_IRQ_GPIO,
+	TXGBE_IRQ_MAX
+};
+
+struct txgbe_irq {
+	struct irq_chip chip;
+	struct irq_domain *domain;
+	int nirqs;
+	int irq;
+};
+
+struct txgbe {
+	struct wx *wx;
+	struct txgbe_nodes nodes;
+	struct txgbe_irq misc;
+	struct phylink_pcs *pcs;
+	struct platform_device *sfp_dev;
+	struct platform_device *i2c_dev;
+	struct clk_lookup *clock;
+	struct clk *clk;
+	struct gpio_chip *gpio;
+	unsigned int link_irq;
+	unsigned int gpio_irq;
+	u32 eicr;
+
+	/* flow director */
+	struct hlist_head fdir_filter_list;
+	union txgbe_atr_input fdir_mask;
+	int fdir_filter_count;
+	spinlock_t fdir_perfect_lock; /* spinlock for FDIR */
+
+	DECLARE_PHY_INTERFACE_MASK(link_interfaces);
+	__ETHTOOL_DECLARE_LINK_MODE_MASK(link_support);
+	__ETHTOOL_DECLARE_LINK_MODE_MASK(advertising);
+	u8 link_port;
+};
+
+#endif /* _TXGBE_TYPE_H_ */

linux-7.2.3/drivers/net/ethernet/wangxun/txgbevf/Makefile

@@ -0,0 +1,9 @@
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (c) 2015 - 2025 Beijing WangXun Technology Co., Ltd.
+#
+# Makefile for the Wangxun(R) 10/25/40GbE virtual functions driver
+#
+
+obj-$(CONFIG_TXGBE) += txgbevf.o
+
+txgbevf-objs := txgbevf_main.o

linux-7.2.3/drivers/net/ethernet/wangxun/txgbevf/txgbevf_main.c

@@ -0,0 +1,331 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2015 - 2025 Beijing WangXun Technology Co., Ltd. */
+
+#include <linux/types.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/netdevice.h>
+#include <linux/string.h>
+#include <linux/etherdevice.h>
+
+#include "../libwx/wx_type.h"
+#include "../libwx/wx_hw.h"
+#include "../libwx/wx_lib.h"
+#include "../libwx/wx_mbx.h"
+#include "../libwx/wx_vf.h"
+#include "../libwx/wx_vf_common.h"
+#include "../libwx/wx_ethtool.h"
+#include "txgbevf_type.h"
+
+/* txgbevf_pci_tbl - PCI Device ID Table
+ *
+ * Wildcard entries (PCI_ANY_ID) should come last
+ * Last entry must be all 0s
+ *
+ * { Vendor ID, Device ID, SubVendor ID, SubDevice ID,
+ *   Class, Class Mask, private data (not used) }
+ */
+static const struct pci_device_id txgbevf_pci_tbl[] = {
+	{ PCI_VDEVICE(WANGXUN, TXGBEVF_DEV_ID_SP1000) },
+	{ PCI_VDEVICE(WANGXUN, TXGBEVF_DEV_ID_WX1820) },
+	{ PCI_VDEVICE(WANGXUN, TXGBEVF_DEV_ID_AML500F) },
+	{ PCI_VDEVICE(WANGXUN, TXGBEVF_DEV_ID_AML510F) },
+	{ PCI_VDEVICE(WANGXUN, TXGBEVF_DEV_ID_AML5024) },
+	{ PCI_VDEVICE(WANGXUN, TXGBEVF_DEV_ID_AML5124) },
+	{ PCI_VDEVICE(WANGXUN, TXGBEVF_DEV_ID_AML503F) },
+	{ PCI_VDEVICE(WANGXUN, TXGBEVF_DEV_ID_AML513F) },
+	/* required last entry */
+	{ }
+};
+
+static const struct net_device_ops txgbevf_netdev_ops = {
+	.ndo_open               = wxvf_open,
+	.ndo_stop               = wxvf_close,
+	.ndo_start_xmit         = wx_xmit_frame,
+	.ndo_validate_addr      = eth_validate_addr,
+	.ndo_set_mac_address    = wx_set_mac_vf,
+};
+
+static void txgbevf_set_num_queues(struct wx *wx)
+{
+	u32 def_q = 0, num_tcs = 0;
+	u16 rss, queue;
+	int ret = 0;
+
+	/* Start with base case */
+	wx->num_rx_queues = 1;
+	wx->num_tx_queues = 1;
+
+	spin_lock_bh(&wx->mbx.mbx_lock);
+	/* fetch queue configuration from the PF */
+	ret = wx_get_queues_vf(wx, &num_tcs, &def_q);
+	spin_unlock_bh(&wx->mbx.mbx_lock);
+
+	if (ret)
+		return;
+
+	/* we need as many queues as traffic classes */
+	if (num_tcs > 1) {
+		wx->num_rx_queues = num_tcs;
+	} else {
+		rss = min_t(u16, num_online_cpus(), TXGBEVF_MAX_RSS_NUM);
+		queue = min_t(u16, wx->mac.max_rx_queues, wx->mac.max_tx_queues);
+		rss = min_t(u16, queue, rss);
+
+		if (wx->vfinfo->vf_api >= wx_mbox_api_13) {
+			wx->num_rx_queues = rss;
+			wx->num_tx_queues = rss;
+		}
+	}
+}
+
+static void txgbevf_init_type_code(struct wx *wx)
+{
+	switch (wx->device_id) {
+	case TXGBEVF_DEV_ID_SP1000:
+	case TXGBEVF_DEV_ID_WX1820:
+		wx->mac.type = wx_mac_sp;
+		break;
+	case TXGBEVF_DEV_ID_AML500F:
+	case TXGBEVF_DEV_ID_AML510F:
+	case TXGBEVF_DEV_ID_AML5024:
+	case TXGBEVF_DEV_ID_AML5124:
+	case TXGBEVF_DEV_ID_AML503F:
+	case TXGBEVF_DEV_ID_AML513F:
+		wx->mac.type = wx_mac_aml;
+		break;
+	default:
+		wx->mac.type = wx_mac_unknown;
+		break;
+	}
+}
+
+static int txgbevf_sw_init(struct wx *wx)
+{
+	struct net_device *netdev = wx->netdev;
+	struct pci_dev *pdev = wx->pdev;
+	int err;
+
+	/* Initialize pcie info and common capability flags */
+	err = wx_sw_init(wx);
+	if (err < 0)
+		goto err_wx_sw_init;
+
+	/* Initialize the mailbox */
+	err = wx_init_mbx_params_vf(wx);
+	if (err)
+		goto err_init_mbx_params;
+
+	/* max q_vectors */
+	wx->mac.max_msix_vectors = TXGBEVF_MAX_MSIX_VECTORS;
+	/* Initialize the device type */
+	txgbevf_init_type_code(wx);
+	/* lock to protect mailbox accesses */
+	spin_lock_init(&wx->mbx.mbx_lock);
+
+	err = wx_reset_hw_vf(wx);
+	if (err) {
+		wx_err(wx, "PF still in reset state. Is the PF interface up?\n");
+		goto err_reset_hw;
+	}
+	wx_init_hw_vf(wx);
+	wx_negotiate_api_vf(wx);
+	if (is_zero_ether_addr(wx->mac.addr))
+		dev_info(&pdev->dev,
+			 "MAC address not assigned by administrator.\n");
+	eth_hw_addr_set(netdev, wx->mac.addr);
+
+	if (!is_valid_ether_addr(netdev->dev_addr)) {
+		dev_info(&pdev->dev, "Assigning random MAC address\n");
+		eth_hw_addr_random(netdev);
+		ether_addr_copy(wx->mac.addr, netdev->dev_addr);
+		ether_addr_copy(wx->mac.perm_addr, netdev->dev_addr);
+	}
+
+	wx->mac.max_tx_queues = TXGBEVF_MAX_TX_QUEUES;
+	wx->mac.max_rx_queues = TXGBEVF_MAX_RX_QUEUES;
+	/* Enable dynamic interrupt throttling rates */
+	wx->adaptive_itr = true;
+	wx->rx_itr_setting = 1;
+	wx->tx_itr_setting = 1;
+	/* set default ring sizes */
+	wx->tx_ring_count = TXGBEVF_DEFAULT_TXD;
+	wx->rx_ring_count = TXGBEVF_DEFAULT_RXD;
+	/* set default work limits */
+	wx->tx_work_limit = TXGBEVF_DEFAULT_TX_WORK;
+	wx->rx_work_limit = TXGBEVF_DEFAULT_RX_WORK;
+
+	wx->set_num_queues = txgbevf_set_num_queues;
+
+	switch (wx->mac.type) {
+	case wx_mac_sp:
+		break;
+	case wx_mac_aml:
+	case wx_mac_aml40:
+		set_bit(WX_FLAG_RX_MERGE_ENABLED, wx->flags);
+		set_bit(WX_FLAG_TXHEAD_WB_ENABLED, wx->flags);
+		break;
+	default:
+		break;
+	}
+
+	return 0;
+err_reset_hw:
+	kfree(wx->vfinfo);
+err_init_mbx_params:
+	kfree(wx->rss_key);
+	kfree(wx->mac_table);
+err_wx_sw_init:
+	return err;
+}
+
+/**
+ * txgbevf_probe - Device Initialization Routine
+ * @pdev: PCI device information struct
+ * @ent: entry in txgbevf_pci_tbl
+ *
+ * Return: return 0 on success, negative on failure
+ *
+ * txgbevf_probe initializes an adapter identified by a pci_dev structure.
+ * The OS initialization, configuring of the adapter private structure,
+ * and a hardware reset occur.
+ **/
+static int txgbevf_probe(struct pci_dev *pdev,
+			 const struct pci_device_id __always_unused *ent)
+{
+	struct net_device *netdev;
+	struct wx *wx = NULL;
+	int err;
+
+	err = pci_enable_device_mem(pdev);
+	if (err)
+		return err;
+
+	err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
+	if (err) {
+		dev_err(&pdev->dev,
+			"No usable DMA configuration, aborting\n");
+		goto err_pci_disable_dev;
+	}
+
+	err = pci_request_selected_regions(pdev,
+					   pci_select_bars(pdev, IORESOURCE_MEM),
+					   dev_driver_string(&pdev->dev));
+	if (err) {
+		dev_err(&pdev->dev,
+			"pci_request_selected_regions failed 0x%x\n", err);
+		goto err_pci_disable_dev;
+	}
+
+	pci_set_master(pdev);
+
+	netdev = devm_alloc_etherdev_mqs(&pdev->dev,
+					 sizeof(struct wx),
+					 TXGBEVF_MAX_TX_QUEUES,
+					 TXGBEVF_MAX_RX_QUEUES);
+	if (!netdev) {
+		err = -ENOMEM;
+		goto err_pci_release_regions;
+	}
+
+	SET_NETDEV_DEV(netdev, &pdev->dev);
+
+	wx = netdev_priv(netdev);
+	wx->netdev = netdev;
+	wx->pdev = pdev;
+
+	wx->msg_enable = netif_msg_init(-1, NETIF_MSG_DRV |
+					NETIF_MSG_PROBE | NETIF_MSG_LINK);
+	wx->hw_addr = devm_ioremap(&pdev->dev,
+				   pci_resource_start(pdev, 0),
+				   pci_resource_len(pdev, 0));
+	if (!wx->hw_addr) {
+		err = -EIO;
+		goto err_pci_release_regions;
+	}
+
+	wx->b4_addr = devm_ioremap(&pdev->dev,
+				   pci_resource_start(pdev, 4),
+				   pci_resource_len(pdev, 4));
+	if (!wx->b4_addr) {
+		err = -EIO;
+		goto err_pci_release_regions;
+	}
+
+	wx->driver_name = KBUILD_MODNAME;
+	wx_set_ethtool_ops_vf(netdev);
+	netdev->netdev_ops = &txgbevf_netdev_ops;
+
+	/* setup the private structure */
+	err = txgbevf_sw_init(wx);
+	if (err)
+		goto err_pci_release_regions;
+
+	netdev->features |= NETIF_F_HIGHDMA;
+
+	eth_hw_addr_set(netdev, wx->mac.perm_addr);
+	ether_addr_copy(netdev->perm_addr, wx->mac.addr);
+
+	wxvf_init_service(wx);
+	err = wx_init_interrupt_scheme(wx);
+	if (err)
+		goto err_free_sw_init;
+
+	wx_get_fw_version_vf(wx);
+	err = register_netdev(netdev);
+	if (err)
+		goto err_register;
+
+	pci_set_drvdata(pdev, wx);
+	netif_tx_stop_all_queues(netdev);
+
+	return 0;
+
+err_register:
+	wx_clear_interrupt_scheme(wx);
+err_free_sw_init:
+	timer_delete_sync(&wx->service_timer);
+	cancel_work_sync(&wx->service_task);
+	kfree(wx->vfinfo);
+	kfree(wx->rss_key);
+	kfree(wx->mac_table);
+err_pci_release_regions:
+	pci_release_selected_regions(pdev,
+				     pci_select_bars(pdev, IORESOURCE_MEM));
+err_pci_disable_dev:
+	pci_disable_device(pdev);
+	return err;
+}
+
+/**
+ * txgbevf_remove - Device Removal Routine
+ * @pdev: PCI device information struct
+ *
+ * txgbevf_remove is called by the PCI subsystem to alert the driver
+ * that it should release a PCI device.  The could be caused by a
+ * Hot-Plug event, or because the driver is going to be removed from
+ * memory.
+ **/
+static void txgbevf_remove(struct pci_dev *pdev)
+{
+	wxvf_remove(pdev);
+}
+
+static DEFINE_SIMPLE_DEV_PM_OPS(txgbevf_pm_ops, wxvf_suspend, wxvf_resume);
+
+static struct pci_driver txgbevf_driver = {
+	.name     = KBUILD_MODNAME,
+	.id_table = txgbevf_pci_tbl,
+	.probe    = txgbevf_probe,
+	.remove   = txgbevf_remove,
+	.shutdown = wxvf_shutdown,
+	/* Power Management Hooks */
+	.driver.pm	= pm_sleep_ptr(&txgbevf_pm_ops)
+};
+
+module_pci_driver(txgbevf_driver);
+
+MODULE_DEVICE_TABLE(pci, txgbevf_pci_tbl);
+MODULE_AUTHOR("Beijing WangXun Technology Co., Ltd, <software@trustnetic.com>");
+MODULE_DESCRIPTION("WangXun(R) 10/25/40 Gigabit Virtual Function Network Driver");
+MODULE_LICENSE("GPL");

linux-7.2.3/drivers/net/ethernet/wangxun/txgbevf/txgbevf_type.h

@@ -0,0 +1,26 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2015 - 2025 Beijing WangXun Technology Co., Ltd. */
+
+#ifndef _TXGBEVF_TYPE_H_
+#define _TXGBEVF_TYPE_H_
+
+/* Device IDs */
+#define TXGBEVF_DEV_ID_SP1000                  0x1000
+#define TXGBEVF_DEV_ID_WX1820                  0x2000
+#define TXGBEVF_DEV_ID_AML500F                 0x500F
+#define TXGBEVF_DEV_ID_AML510F                 0x510F
+#define TXGBEVF_DEV_ID_AML5024                 0x5024
+#define TXGBEVF_DEV_ID_AML5124                 0x5124
+#define TXGBEVF_DEV_ID_AML503F                 0x503f
+#define TXGBEVF_DEV_ID_AML513F                 0x513f
+
+#define TXGBEVF_MAX_MSIX_VECTORS               2
+#define TXGBEVF_MAX_RSS_NUM                    4
+#define TXGBEVF_MAX_RX_QUEUES                  4
+#define TXGBEVF_MAX_TX_QUEUES                  4
+#define TXGBEVF_DEFAULT_TXD                    128
+#define TXGBEVF_DEFAULT_RXD                    128
+#define TXGBEVF_DEFAULT_TX_WORK                256
+#define TXGBEVF_DEFAULT_RX_WORK                256
+
+#endif /* _TXGBEVF_TYPE_H_ */