text: // SPDX-License-Identifier: GPL-2.0-or-later
  /*
   * Copyright (C) 2003 - 2009 NetXen, Inc.
   * Copyright (C) 2009 - QLogic Corporation.
   * All rights reserved.
   */
  
  #include <linux/types.h>
  #include <linux/delay.h>
  #include <linux/pci.h>
  #include <asm/io.h>
  #include <linux/netdevice.h>
  #include <linux/ethtool.h>
  
  #include "netxen_nic.h"
  #include "netxen_nic_hw.h"
  
  struct netxen_nic_stats {
  	char stat_string[ETH_GSTRING_LEN];
  	int sizeof_stat;
  	int stat_offset;
  };
  
  #define NETXEN_NIC_STAT(m) sizeof(((struct netxen_adapter *)0)->m), \
  			offsetof(struct netxen_adapter, m)
  
  #define NETXEN_NIC_PORT_WINDOW 0x10000
  #define NETXEN_NIC_INVALID_DATA 0xDEADBEEF
  
  static const struct netxen_nic_stats netxen_nic_gstrings_stats[] = {
  	{"xmit_called", NETXEN_NIC_STAT(stats.xmitcalled)},
  	{"xmit_finished", NETXEN_NIC_STAT(stats.xmitfinished)},
  	{"rx_dropped", NETXEN_NIC_STAT(stats.rxdropped)},
  	{"tx_dropped", NETXEN_NIC_STAT(stats.txdropped)},
  	{"csummed", NETXEN_NIC_STAT(stats.csummed)},
  	{"rx_pkts", NETXEN_NIC_STAT(stats.rx_pkts)},
  	{"lro_pkts", NETXEN_NIC_STAT(stats.lro_pkts)},
  	{"rx_bytes", NETXEN_NIC_STAT(stats.rxbytes)},
  	{"tx_bytes", NETXEN_NIC_STAT(stats.txbytes)},
  };
  
  #define NETXEN_NIC_STATS_LEN	ARRAY_SIZE(netxen_nic_gstrings_stats)
  
  static const char netxen_nic_gstrings_test[][ETH_GSTRING_LEN] = {
  	"Register_Test_on_offline",
  	"Link_Test_on_offline"
  };
  
  #define NETXEN_NIC_TEST_LEN	ARRAY_SIZE(netxen_nic_gstrings_test)
  
  #define NETXEN_NIC_REGS_COUNT 30
  #define NETXEN_NIC_REGS_LEN (NETXEN_NIC_REGS_COUNT * sizeof(__le32))
  #define NETXEN_MAX_EEPROM_LEN   1024
  
  static int netxen_nic_get_eeprom_len(struct net_device *dev)
  {
  	return NETXEN_FLASH_TOTAL_SIZE;
  }
  
  static void
  netxen_nic_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *drvinfo)
  {
  	struct netxen_adapter *adapter = netdev_priv(dev);
  	u32 fw_major = 0;
  	u32 fw_minor = 0;
  	u32 fw_build = 0;
  
  	strlcpy(drvinfo->driver, netxen_nic_driver_name,
  		sizeof(drvinfo->driver));
  	strlcpy(drvinfo->version, NETXEN_NIC_LINUX_VERSIONID,
  		sizeof(drvinfo->version));
  	fw_major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR);
  	fw_minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR);
  	fw_build = NXRD32(adapter, NETXEN_FW_VERSION_SUB);
  	snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
  		"%d.%d.%d", fw_major, fw_minor, fw_build);
  
  	strlcpy(drvinfo->bus_info, pci_name(adapter->pdev),
  		sizeof(drvinfo->bus_info));
  }
  
  static int
  netxen_nic_get_link_ksettings(struct net_device *dev,
  			      struct ethtool_link_ksettings *cmd)
  {
  	struct netxen_adapter *adapter = netdev_priv(dev);
  	int check_sfp_module = 0;
  	u32 supported, advertising;
  
  	/* read which mode */
  	if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
  		supported = (SUPPORTED_10baseT_Half |
  				   SUPPORTED_10baseT_Full |
  				   SUPPORTED_100baseT_Half |
  				   SUPPORTED_100baseT_Full |
  				   SUPPORTED_1000baseT_Half |
  				   SUPPORTED_1000baseT_Full);
  
  		advertising = (ADVERTISED_100baseT_Half |
  				     ADVERTISED_100baseT_Full |
  				     ADVERTISED_1000baseT_Half |
  				     ADVERTISED_1000baseT_Full);
  
  		cmd->base.port = PORT_TP;
  
  		cmd->base.speed = adapter->link_speed;
  		cmd->base.duplex = adapter->link_duplex;
  		cmd->base.autoneg = adapter->link_autoneg;
  
  	} else if (adapter->ahw.port_type == NETXEN_NIC_XGBE) {
  		u32 val;
  
  		val = NXRD32(adapter, NETXEN_PORT_MODE_ADDR);
  		if (val == NETXEN_PORT_MODE_802_3_AP) {
  			supported = SUPPORTED_1000baseT_Full;
  			advertising = ADVERTISED_1000baseT_Full;
  		} else {
  			supported = SUPPORTED_10000baseT_Full;
  			advertising = ADVERTISED_10000baseT_Full;
  		}
  
  		if (netif_running(dev) && adapter->has_link_events) {
  			cmd->base.speed = adapter->link_speed;
  			cmd->base.autoneg = adapter->link_autoneg;
  			cmd->base.duplex = adapter->link_duplex;
  			goto skip;
  		}
  
  		cmd->base.port = PORT_TP;
  
  		if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
  			u16 pcifn = adapter->ahw.pci_func;
  
  			val = NXRD32(adapter, P3_LINK_SPEED_REG(pcifn));
  			cmd->base.speed = P3_LINK_SPEED_MHZ *
  				P3_LINK_SPEED_VAL(pcifn, val);
  		} else
  			cmd->base.speed = SPEED_10000;
  
  		cmd->base.duplex = DUPLEX_FULL;
  		cmd->base.autoneg = AUTONEG_DISABLE;
  	} else
  		return -EIO;
  
  skip:
  	cmd->base.phy_address = adapter->physical_port;
  
  	switch (adapter->ahw.board_type) {
  	case NETXEN_BRDTYPE_P2_SB35_4G:
  	case NETXEN_BRDTYPE_P2_SB31_2G:
  	case NETXEN_BRDTYPE_P3_REF_QG:
  	case NETXEN_BRDTYPE_P3_4_GB:
  	case NETXEN_BRDTYPE_P3_4_GB_MM:
  		supported |= SUPPORTED_Autoneg;
  		advertising |= ADVERTISED_Autoneg;
  		/* fall through */
  	case NETXEN_BRDTYPE_P2_SB31_10G_CX4:
  	case NETXEN_BRDTYPE_P3_10G_CX4:
  	case NETXEN_BRDTYPE_P3_10G_CX4_LP:
  	case NETXEN_BRDTYPE_P3_10000_BASE_T:
  		supported |= SUPPORTED_TP;
  		advertising |= ADVERTISED_TP;
  		cmd->base.port = PORT_TP;
  		cmd->base.autoneg = (adapter->ahw.board_type ==
  				 NETXEN_BRDTYPE_P2_SB31_10G_CX4) ?
  		    (AUTONEG_DISABLE) : (adapter->link_autoneg);
  		break;
  	case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ:
  	case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ:
  	case NETXEN_BRDTYPE_P3_IMEZ:
  	case NETXEN_BRDTYPE_P3_XG_LOM:
  	case NETXEN_BRDTYPE_P3_HMEZ:
  		supported |= SUPPORTED_MII;
  		advertising |= ADVERTISED_MII;
  		cmd->base.port = PORT_MII;
  		cmd->base.autoneg = AUTONEG_DISABLE;
  		break;
  	case NETXEN_BRDTYPE_P3_10G_SFP_PLUS:
  	case NETXEN_BRDTYPE_P3_10G_SFP_CT:
  	case NETXEN_BRDTYPE_P3_10G_SFP_QT:
  		advertising |= ADVERTISED_TP;
  		supported |= SUPPORTED_TP;
  		check_sfp_module = netif_running(dev) &&
  			adapter->has_link_events;
  		/* fall through */
  	case NETXEN_BRDTYPE_P2_SB31_10G:
  	case NETXEN_BRDTYPE_P3_10G_XFP:
  		supported |= SUPPORTED_FIBRE;
  		advertising |= ADVERTISED_FIBRE;
  		cmd->base.port = PORT_FIBRE;
  		cmd->base.autoneg = AUTONEG_DISABLE;
  		break;
  	case NETXEN_BRDTYPE_P3_10G_TP:
  		if (adapter->ahw.port_type == NETXEN_NIC_XGBE) {
  			cmd->base.autoneg = AUTONEG_DISABLE;
  			supported |= (SUPPORTED_FIBRE | SUPPORTED_TP);
  			advertising |=
  				(ADVERTISED_FIBRE | ADVERTISED_TP);
  			cmd->base.port = PORT_FIBRE;
  			check_sfp_module = netif_running(dev) &&
  				adapter->has_link_events;
  		} else {
  			supported |= (SUPPORTED_TP | SUPPORTED_Autoneg);
  			advertising |=
  				(ADVERTISED_TP | ADVERTISED_Autoneg);
  			cmd->base.port = PORT_TP;
  		}
  		break;
  	default:
  		printk(KERN_ERR "netxen-nic: Unsupported board model %d\n",
  				adapter->ahw.board_type);
  		return -EIO;
  	}
  
  	if (check_sfp_module) {
  		switch (adapter->module_type) {
  		case LINKEVENT_MODULE_OPTICAL_UNKNOWN:
  		case LINKEVENT_MODULE_OPTICAL_SRLR:
  		case LINKEVENT_MODULE_OPTICAL_LRM:
  		case LINKEVENT_MODULE_OPTICAL_SFP_1G:
  			cmd->base.port = PORT_FIBRE;
  			break;
  		case LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLE:
  		case LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLELEN:
  		case LINKEVENT_MODULE_TWINAX:
  			cmd->base.port = PORT_TP;
  			break;
  		default:
  			cmd->base.port = -1;
  		}
  	}
  
  	if (!netif_running(dev) || !adapter->ahw.linkup) {
  		cmd->base.duplex = DUPLEX_UNKNOWN;
  		cmd->base.speed = SPEED_UNKNOWN;
  	}
  
  	ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported,
  						supported);
  	ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.advertising,
  						advertising);
  
  	return 0;
  }
  
  static int
  netxen_nic_set_link_ksettings(struct net_device *dev,
  			      const struct ethtool_link_ksettings *cmd)
  {
  	struct netxen_adapter *adapter = netdev_priv(dev);
  	u32 speed = cmd->base.speed;
  	int ret;
  
  	if (adapter->ahw.port_type != NETXEN_NIC_GBE)
  		return -EOPNOTSUPP;
  
  	if (!(adapter->capabilities & NX_FW_CAPABILITY_GBE_LINK_CFG))
  		return -EOPNOTSUPP;
  
  	ret = nx_fw_cmd_set_gbe_port(adapter, speed, cmd->base.duplex,
  				     cmd->base.autoneg);
  	if (ret == NX_RCODE_NOT_SUPPORTED)
  		return -EOPNOTSUPP;
  	else if (ret)
  		return -EIO;
  
  	adapter->link_speed = speed;
  	adapter->link_duplex = cmd->base.duplex;
  	adapter->link_autoneg = cmd->base.autoneg;
  
  	if (!netif_running(dev))
  		return 0;
  
  	dev->netdev_ops->ndo_stop(dev);
  	return dev->netdev_ops->ndo_open(dev);
  }
  
  static int netxen_nic_get_regs_len(struct net_device *dev)
  {
  	return NETXEN_NIC_REGS_LEN;
  }
  
  static void
  netxen_nic_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *p)
  {
  	struct netxen_adapter *adapter = netdev_priv(dev);
  	struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
  	struct nx_host_sds_ring *sds_ring;
  	u32 *regs_buff = p;
  	int ring, i = 0;
  	int port = adapter->physical_port;
  
  	memset(p, 0, NETXEN_NIC_REGS_LEN);
  
  	regs->version = (1 << 24) | (adapter->ahw.revision_id << 16) |
  	    (adapter->pdev)->device;
  
  	if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
  		return;
  
  	regs_buff[i++] = NXRD32(adapter, CRB_CMDPEG_STATE);
  	regs_buff[i++] = NXRD32(adapter, CRB_RCVPEG_STATE);
  	regs_buff[i++] = NXRD32(adapter, CRB_FW_CAPABILITIES_1);
  	regs_buff[i++] = NXRDIO(adapter, adapter->crb_int_state_reg);
  	regs_buff[i++] = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
  	regs_buff[i++] = NXRD32(adapter, NX_CRB_DEV_STATE);
  	regs_buff[i++] = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
  	regs_buff[i++] = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1);
  	regs_buff[i++] = NXRD32(adapter, NETXEN_PEG_HALT_STATUS2);
  
  	regs_buff[i++] = NXRD32(adapter, NETXEN_CRB_PEG_NET_0+0x3c);
  	regs_buff[i++] = NXRD32(adapter, NETXEN_CRB_PEG_NET_1+0x3c);
  	regs_buff[i++] = NXRD32(adapter, NETXEN_CRB_PEG_NET_2+0x3c);
  	regs_buff[i++] = NXRD32(adapter, NETXEN_CRB_PEG_NET_3+0x3c);
  
  	if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
  
  		regs_buff[i++] = NXRD32(adapter, NETXEN_CRB_PEG_NET_4+0x3c);
  		i += 2;
  
  		regs_buff[i++] = NXRD32(adapter, CRB_XG_STATE_P3);
  		regs_buff[i++] = le32_to_cpu(*(adapter->tx_ring->hw_consumer));
  
  	} else {
  		i++;
  
  		regs_buff[i++] = NXRD32(adapter,
  					NETXEN_NIU_XGE_CONFIG_0+(0x10000*port));
  		regs_buff[i++] = NXRD32(adapter,
  					NETXEN_NIU_XGE_CONFIG_1+(0x10000*port));
  
  		regs_buff[i++] = NXRD32(adapter, CRB_XG_STATE);
  		regs_buff[i++] = NXRDIO(adapter,
  				 adapter->tx_ring->crb_cmd_consumer);
  	}
  
  	regs_buff[i++] = NXRDIO(adapter, adapter->tx_ring->crb_cmd_producer);
  
  	regs_buff[i++] = NXRDIO(adapter,
  			 recv_ctx->rds_rings[0].crb_rcv_producer);
  	regs_buff[i++] = NXRDIO(adapter,
  			 recv_ctx->rds_rings[1].crb_rcv_producer);
  
  	regs_buff[i++] = adapter->max_sds_rings;
  
  	for (ring = 0; ring < adapter->max_sds_rings; ring++) {
  		sds_ring = &(recv_ctx->sds_rings[ring]);
  		regs_buff[i++] = NXRDIO(adapter,
  					sds_ring->crb_sts_consumer);
  	}
  }
  
  static u32 netxen_nic_test_link(struct net_device *dev)
  {
  	struct netxen_adapter *adapter = netdev_priv(dev);
  	u32 val, port;
  
  	port = adapter->physical_port;
  	if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
  		val = NXRD32(adapter, CRB_XG_STATE_P3);
  		val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val);
  		return (val == XG_LINK_UP_P3) ? 0 : 1;
  	} else {
  		val = NXRD32(adapter, CRB_XG_STATE);
  		val = (val >> port*8) & 0xff;
  		return (val == XG_LINK_UP) ? 0 : 1;
  	}
  }
  
  static int
  netxen_nic_get_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom,
  		      u8 *bytes)
  {
  	struct netxen_adapter *adapter = netdev_priv(dev);
  	int offset;
  	int ret;
  
  	if (eeprom->len == 0)
  		return -EINVAL;
  
  	eeprom->magic = (adapter->pdev)->vendor |
  			((adapter->pdev)->device << 16);
  	offset = eeprom->offset;
  
  	ret = netxen_rom_fast_read_words(adapter, offset, bytes,
  						eeprom->len);
  	if (ret < 0)
  		return ret;
  
  	return 0;
  }
  
  static void
  netxen_nic_get_ringparam(struct net_device *dev,
  		struct ethtool_ringparam *ring)
  {
  	struct netxen_adapter *adapter = netdev_priv(dev);
  
  	ring->rx_pending = adapter->num_rxd;
  	ring->rx_jumbo_pending = adapter->num_jumbo_rxd;
  	ring->rx_jumbo_pending += adapter->num_lro_rxd;
  	ring->tx_pending = adapter->num_txd;
  
  	if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
  		ring->rx_max_pending = MAX_RCV_DESCRIPTORS_1G;
  		ring->rx_jumbo_max_pending = MAX_JUMBO_RCV_DESCRIPTORS_1G;
  	} else {
  		ring->rx_max_pending = MAX_RCV_DESCRIPTORS_10G;
  		ring->rx_jumbo_max_pending = MAX_JUMBO_RCV_DESCRIPTORS_10G;
  	}
  
  	ring->tx_max_pending = MAX_CMD_DESCRIPTORS;
  }
  
  static u32
  netxen_validate_ringparam(u32 val, u32 min, u32 max, char *r_name)
  {
  	u32 num_desc;
  	num_desc = max(val, min);
  	num_desc = min(num_desc, max);
  	num_desc = roundup_pow_of_two(num_desc);
  
  	if (val != num_desc) {
  		printk(KERN_INFO "%s: setting %s ring size %d instead of %d\n",
  		       netxen_nic_driver_name, r_name, num_desc, val);
  	}
  
  	return num_desc;
  }
  
  static int
  netxen_nic_set_ringparam(struct net_device *dev,
  		struct ethtool_ringparam *ring)
  {
  	struct netxen_adapter *adapter = netdev_priv(dev);
  	u16 max_rcv_desc = MAX_RCV_DESCRIPTORS_10G;
  	u16 max_jumbo_desc = MAX_JUMBO_RCV_DESCRIPTORS_10G;
  	u16 num_rxd, num_jumbo_rxd, num_txd;
  
  	if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
  		return -EOPNOTSUPP;
  
  	if (ring->rx_mini_pending)
  		return -EOPNOTSUPP;
  
  	if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
  		max_rcv_desc = MAX_RCV_DESCRIPTORS_1G;
  		max_jumbo_desc = MAX_JUMBO_RCV_DESCRIPTORS_10G;
  	}
  
  	num_rxd = netxen_validate_ringparam(ring->rx_pending,
  			MIN_RCV_DESCRIPTORS, max_rcv_desc, "rx");
  
  	num_jumbo_rxd = netxen_validate_ringparam(ring->rx_jumbo_pending,
  			MIN_JUMBO_DESCRIPTORS, max_jumbo_desc, "rx jumbo");
  
  	num_txd = netxen_validate_ringparam(ring->tx_pending,
  			MIN_CMD_DESCRIPTORS, MAX_CMD_DESCRIPTORS, "tx");
  
  	if (num_rxd == adapter->num_rxd && num_txd == adapter->num_txd &&
  			num_jumbo_rxd == adapter->num_jumbo_rxd)
  		return 0;
  
  	adapter->num_rxd = num_rxd;
  	adapter->num_jumbo_rxd = num_jumbo_rxd;
  	adapter->num_txd = num_txd;
  
  	return netxen_nic_reset_context(adapter);
  }
  
  static void
  netxen_nic_get_pauseparam(struct net_device *dev,
  			  struct ethtool_pauseparam *pause)
  {
  	struct netxen_adapter *adapter = netdev_priv(dev);
  	__u32 val;
  	int port = adapter->physical_port;
  
  	pause->autoneg = 0;
  
  	if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
  		if ((port < 0) || (port >= NETXEN_NIU_MAX_GBE_PORTS))
  			return;
  		/* get flow control settings */
  		val = NXRD32(adapter, NETXEN_NIU_GB_MAC_CONFIG_0(port));
  		pause->rx_pause = netxen_gb_get_rx_flowctl(val);
  		val = NXRD32(adapter, NETXEN_NIU_GB_PAUSE_CTL);
  		switch (port) {
  		case 0:
  			pause->tx_pause = !(netxen_gb_get_gb0_mask(val));
  			break;
  		case 1:
  			pause->tx_pause = !(netxen_gb_get_gb1_mask(val));
  			break;
  		case 2:
  			pause->tx_pause = !(netxen_gb_get_gb2_mask(val));
  			break;
  		case 3:
  		default:
  			pause->tx_pause = !(netxen_gb_get_gb3_mask(val));
  			break;
  		}
  	} else if (adapter->ahw.port_type == NETXEN_NIC_XGBE) {
  		if ((port < 0) || (port >= NETXEN_NIU_MAX_XG_PORTS))
  			return;
  		pause->rx_pause = 1;
  		val = NXRD32(adapter, NETXEN_NIU_XG_PAUSE_CTL);
  		if (port == 0)
  			pause->tx_pause = !(netxen_xg_get_xg0_mask(val));
  		else
  			pause->tx_pause = !(netxen_xg_get_xg1_mask(val));
  	} else {
  		printk(KERN_ERR"%s: Unknown board type: %x\n",
  				netxen_nic_driver_name, adapter->ahw.port_type);
  	}
  }
  
  static int
  netxen_nic_set_pauseparam(struct net_device *dev,
  			  struct ethtool_pauseparam *pause)
  {
  	struct netxen_adapter *adapter = netdev_priv(dev);
  	__u32 val;
  	int port = adapter->physical_port;
  
  	/* not supported */
  	if (pause->autoneg)
  		return -EINVAL;
  
  	/* read mode */
  	if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
  		if ((port < 0) || (port >= NETXEN_NIU_MAX_GBE_PORTS))
  			return -EIO;
  		/* set flow control */
  		val = NXRD32(adapter, NETXEN_NIU_GB_MAC_CONFIG_0(port));
  
  		if (pause->rx_pause)
  			netxen_gb_rx_flowctl(val);
  		else
  			netxen_gb_unset_rx_flowctl(val);
  
  		NXWR32(adapter, NETXEN_NIU_GB_MAC_CONFIG_0(port),
  				val);
  		/* set autoneg */
  		val = NXRD32(adapter, NETXEN_NIU_GB_PAUSE_CTL);
  		switch (port) {
  		case 0:
  			if (pause->tx_pause)
  				netxen_gb_unset_gb0_mask(val);
  			else
  				netxen_gb_set_gb0_mask(val);
  			break;
  		case 1:
  			if (pause->tx_pause)
  				netxen_gb_unset_gb1_mask(val);
  			else
  				netxen_gb_set_gb1_mask(val);
  			break;
  		case 2:
  			if (pause->tx_pause)
  				netxen_gb_unset_gb2_mask(val);
  			else
  				netxen_gb_set_gb2_mask(val);
  			break;
  		case 3:
  		default:
  			if (pause->tx_pause)
  				netxen_gb_unset_gb3_mask(val);
  			else
  				netxen_gb_set_gb3_mask(val);
  			break;
  		}
  		NXWR32(adapter, NETXEN_NIU_GB_PAUSE_CTL, val);
  	} else if (adapter->ahw.port_type == NETXEN_NIC_XGBE) {
  		if ((port < 0) || (port >= NETXEN_NIU_MAX_XG_PORTS))
  			return -EIO;
  		val = NXRD32(adapter, NETXEN_NIU_XG_PAUSE_CTL);
  		if (port == 0) {
  			if (pause->tx_pause)
  				netxen_xg_unset_xg0_mask(val);
  			else
  				netxen_xg_set_xg0_mask(val);
  		} else {
  			if (pause->tx_pause)
  				netxen_xg_unset_xg1_mask(val);
  			else
  				netxen_xg_set_xg1_mask(val);
  		}
  		NXWR32(adapter, NETXEN_NIU_XG_PAUSE_CTL, val);
  	} else {
  		printk(KERN_ERR "%s: Unknown board type: %x\n",
  				netxen_nic_driver_name,
  				adapter->ahw.port_type);
  	}
  	return 0;
  }
  
  static int netxen_nic_reg_test(struct net_device *dev)
  {
  	struct netxen_adapter *adapter = netdev_priv(dev);
  	u32 data_read, data_written;
  
  	data_read = NXRD32(adapter, NETXEN_PCIX_PH_REG(0));
  	if ((data_read & 0xffff) != adapter->pdev->vendor)
  		return 1;
  
  	if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
  		return 0;
  
  	data_written = (u32)0xa5a5a5a5;
  
  	NXWR32(adapter, CRB_SCRATCHPAD_TEST, data_written);
  	data_read = NXRD32(adapter, CRB_SCRATCHPAD_TEST);
  	if (data_written != data_read)
  		return 1;
  
  	return 0;
  }
  
  static int netxen_get_sset_count(struct net_device *dev, int sset)
  {
  	switch (sset) {
  	case ETH_SS_TEST:
  		return NETXEN_NIC_TEST_LEN;
  	case ETH_SS_STATS:
  		return NETXEN_NIC_STATS_LEN;
  	default:
  		return -EOPNOTSUPP;
  	}
  }
  
  static void
  netxen_nic_diag_test(struct net_device *dev, struct ethtool_test *eth_test,
  		     u64 *data)
  {
  	memset(data, 0, sizeof(uint64_t) * NETXEN_NIC_TEST_LEN);
  	if ((data[0] = netxen_nic_reg_test(dev)))
  		eth_test->flags |= ETH_TEST_FL_FAILED;
  	/* link test */
  	if ((data[1] = (u64) netxen_nic_test_link(dev)))
  		eth_test->flags |= ETH_TEST_FL_FAILED;
  }
  
  static void
  netxen_nic_get_strings(struct net_device *dev, u32 stringset, u8 *data)
  {
  	int index;
  
  	switch (stringset) {
  	case ETH_SS_TEST:
  		memcpy(data, *netxen_nic_gstrings_test,
  		       NETXEN_NIC_TEST_LEN * ETH_GSTRING_LEN);
  		break;
  	case ETH_SS_STATS:
  		for (index = 0; index < NETXEN_NIC_STATS_LEN; index++) {
  			memcpy(data + index * ETH_GSTRING_LEN,
  			       netxen_nic_gstrings_stats[index].stat_string,
  			       ETH_GSTRING_LEN);
  		}
  		break;
  	}
  }
  
  static void
  netxen_nic_get_ethtool_stats(struct net_device *dev,
  			     struct ethtool_stats *stats, u64 *data)
  {
  	struct netxen_adapter *adapter = netdev_priv(dev);
  	int index;
  
  	for (index = 0; index < NETXEN_NIC_STATS_LEN; index++) {
  		char *p =
  		    (char *)adapter +
  		    netxen_nic_gstrings_stats[index].stat_offset;
  		data[index] =
  		    (netxen_nic_gstrings_stats[index].sizeof_stat ==
  		     sizeof(u64)) ? *(u64 *) p : *(u32 *) p;
  	}
  }
  
  static void
  netxen_nic_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
  {
  	struct netxen_adapter *adapter = netdev_priv(dev);
  	u32 wol_cfg = 0;
  
  	wol->supported = 0;
  	wol->wolopts = 0;
  
  	if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
  		return;
  
  	wol_cfg = NXRD32(adapter, NETXEN_WOL_CONFIG_NV);
  	if (wol_cfg & (1UL << adapter->portnum))
  		wol->supported |= WAKE_MAGIC;
  
  	wol_cfg = NXRD32(adapter, NETXEN_WOL_CONFIG);
  	if (wol_cfg & (1UL << adapter->portnum))
  		wol->wolopts |= WAKE_MAGIC;
  }
  
  static int
  netxen_nic_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
  {
  	struct netxen_adapter *adapter = netdev_priv(dev);
  	u32 wol_cfg = 0;
  
  	if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
  		return -EOPNOTSUPP;
  
  	if (wol->wolopts & ~WAKE_MAGIC)
  		return -EOPNOTSUPP;
  
  	wol_cfg = NXRD32(adapter, NETXEN_WOL_CONFIG_NV);
  	if (!(wol_cfg & (1 << adapter->portnum)))
  		return -EOPNOTSUPP;
  
  	wol_cfg = NXRD32(adapter, NETXEN_WOL_CONFIG);
  	if (wol->wolopts & WAKE_MAGIC)
  		wol_cfg |= 1UL << adapter->portnum;
  	else
  		wol_cfg &= ~(1UL << adapter->portnum);
  	NXWR32(adapter, NETXEN_WOL_CONFIG, wol_cfg);
  
  	return 0;
  }
  
  /*
   * Set the coalescing parameters. Currently only normal is supported.
   * If rx_coalesce_usecs == 0 or rx_max_coalesced_frames == 0 then set the
   * firmware coalescing to default.
   */
  static int netxen_set_intr_coalesce(struct net_device *netdev,
  			struct ethtool_coalesce *ethcoal)
  {
  	struct netxen_adapter *adapter = netdev_priv(netdev);
  
  	if (!NX_IS_REVISION_P3(adapter->ahw.revision_id))
  		return -EINVAL;
  
  	if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
  		return -EINVAL;
  
  	/*
  	* Return Error if unsupported values or
  	* unsupported parameters are set.
  	*/
  	if (ethcoal->rx_coalesce_usecs > 0xffff ||
  		ethcoal->rx_max_coalesced_frames > 0xffff ||
  		ethcoal->tx_coalesce_usecs > 0xffff ||
  		ethcoal->tx_max_coalesced_frames > 0xffff)
  		return -EINVAL;
  
  	if (!ethcoal->rx_coalesce_usecs ||
  		!ethcoal->rx_max_coalesced_frames) {
  		adapter->coal.flags = NETXEN_NIC_INTR_DEFAULT;
  		adapter->coal.normal.data.rx_time_us =
  			NETXEN_DEFAULT_INTR_COALESCE_RX_TIME_US;
  		adapter->coal.normal.data.rx_packets =
  			NETXEN_DEFAULT_INTR_COALESCE_RX_PACKETS;
  	} else {
  		adapter->coal.flags = 0;
  		adapter->coal.normal.data.rx_time_us =
  		ethcoal->rx_coalesce_usecs;
  		adapter->coal.normal.data.rx_packets =
  		ethcoal->rx_max_coalesced_frames;
  	}
  	adapter->coal.normal.data.tx_time_us = ethcoal->tx_coalesce_usecs;
  	adapter->coal.normal.data.tx_packets =
  	ethcoal->tx_max_coalesced_frames;
  
  	netxen_config_intr_coalesce(adapter);
  
  	return 0;
  }
  
  static int netxen_get_intr_coalesce(struct net_device *netdev,
  			struct ethtool_coalesce *ethcoal)
  {
  	struct netxen_adapter *adapter = netdev_priv(netdev);
  
  	if (!NX_IS_REVISION_P3(adapter->ahw.revision_id))
  		return -EINVAL;
  
  	if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
  		return -EINVAL;
  
  	ethcoal->rx_coalesce_usecs = adapter->coal.normal.data.rx_time_us;
  	ethcoal->tx_coalesce_usecs = adapter->coal.normal.data.tx_time_us;
  	ethcoal->rx_max_coalesced_frames =
  		adapter->coal.normal.data.rx_packets;
  	ethcoal->tx_max_coalesced_frames =
  		adapter->coal.normal.data.tx_packets;
  
  	return 0;
  }
  
  static int
  netxen_get_dump_flag(struct net_device *netdev, struct ethtool_dump *dump)
  {
  	struct netxen_adapter *adapter = netdev_priv(netdev);
  	struct netxen_minidump *mdump = &adapter->mdump;
  	if (adapter->fw_mdump_rdy)
  		dump->len = mdump->md_dump_size;
  	else
  		dump->len = 0;
  
  	if (!mdump->md_enabled)
  		dump->flag = ETH_FW_DUMP_DISABLE;
  	else
  		dump->flag = mdump->md_capture_mask;
  
  	dump->version = adapter->fw_version;
  	return 0;
  }
  
  static int
  netxen_set_dump(struct net_device *netdev, struct ethtool_dump *val)
  {
  	int i;
  	struct netxen_adapter *adapter = netdev_priv(netdev);
  	struct netxen_minidump *mdump = &adapter->mdump;
  
  	switch (val->flag) {
  	case NX_FORCE_FW_DUMP_KEY:
  		if (!mdump->md_enabled) {
  			netdev_info(netdev, "FW dump not enabled\n");
  			return 0;
  		}
  		if (adapter->fw_mdump_rdy) {
  			netdev_info(netdev, "Previous dump not cleared, not forcing dump\n");
  			return 0;
  		}
  		netdev_info(netdev, "Forcing a fw dump\n");
  		nx_dev_request_reset(adapter);
  		break;
  	case NX_DISABLE_FW_DUMP:
  		if (mdump->md_enabled) {
  			netdev_info(netdev, "Disabling FW Dump\n");
  			mdump->md_enabled = 0;
  		}
  		break;
  	case NX_ENABLE_FW_DUMP:
  		if (!mdump->md_enabled) {
  			netdev_info(netdev, "Enabling FW dump\n");
  			mdump->md_enabled = 1;
  		}
  		break;
  	case NX_FORCE_FW_RESET:
  		netdev_info(netdev, "Forcing FW reset\n");
  		nx_dev_request_reset(adapter);
  		adapter->flags &= ~NETXEN_FW_RESET_OWNER;
  		break;
  	default:
  		for (i = 0; i < ARRAY_SIZE(FW_DUMP_LEVELS); i++) {
  			if (val->flag == FW_DUMP_LEVELS[i]) {
  				mdump->md_capture_mask = val->flag;
  				netdev_info(netdev,
  					"Driver mask changed to: 0x%x\n",
  					mdump->md_capture_mask);
  				return 0;
  			}
  		}
  		netdev_info(netdev,
  			"Invalid dump level: 0x%x\n", val->flag);
  		return -EINVAL;
  	}
  
  	return 0;
  }
  
  static int
  netxen_get_dump_data(struct net_device *netdev, struct ethtool_dump *dump,
  			void *buffer)
  {
  	int i, copy_sz;
  	u32 *hdr_ptr, *data;
  	struct netxen_adapter *adapter = netdev_priv(netdev);
  	struct netxen_minidump *mdump = &adapter->mdump;
  
  
  	if (!adapter->fw_mdump_rdy) {
  		netdev_info(netdev, "Dump not available\n");
  		return -EINVAL;
  	}
  	/* Copy template header first */
  	copy_sz = mdump->md_template_size;
  	hdr_ptr = (u32 *) mdump->md_template;
  	data = buffer;
  	for (i = 0; i < copy_sz/sizeof(u32); i++)
  		*data++ = cpu_to_le32(*hdr_ptr++);
  
  	/* Copy captured dump data */
  	memcpy(buffer + copy_sz,
  		mdump->md_capture_buff + mdump->md_template_size,
  			mdump->md_capture_size);
  	dump->len = copy_sz + mdump->md_capture_size;
  	dump->flag = mdump->md_capture_mask;
  
  	/* Free dump area once data has been captured */
  	vfree(mdump->md_capture_buff);
  	mdump->md_capture_buff = NULL;
  	adapter->fw_mdump_rdy = 0;
  	netdev_info(netdev, "extracted the fw dump Successfully\n");
  	return 0;
  }
  
  const struct ethtool_ops netxen_nic_ethtool_ops = {
  	.supported_coalesce_params = ETHTOOL_COALESCE_USECS |
  				     ETHTOOL_COALESCE_MAX_FRAMES,
  	.get_drvinfo = netxen_nic_get_drvinfo,
  	.get_regs_len = netxen_nic_get_regs_len,
  	.get_regs = netxen_nic_get_regs,
  	.get_link = ethtool_op_get_link,
  	.get_eeprom_len = netxen_nic_get_eeprom_len,
  	.get_eeprom = netxen_nic_get_eeprom,
  	.get_ringparam = netxen_nic_get_ringparam,
  	.set_ringparam = netxen_nic_set_ringparam,
  	.get_pauseparam = netxen_nic_get_pauseparam,
  	.set_pauseparam = netxen_nic_set_pauseparam,
  	.get_wol = netxen_nic_get_wol,
  	.set_wol = netxen_nic_set_wol,
  	.self_test = netxen_nic_diag_test,
  	.get_strings = netxen_nic_get_strings,
  	.get_ethtool_stats = netxen_nic_get_ethtool_stats,
  	.get_sset_count = netxen_get_sset_count,
  	.get_coalesce = netxen_get_intr_coalesce,
  	.set_coalesce = netxen_set_intr_coalesce,
  	.get_dump_flag = netxen_get_dump_flag,
  	.get_dump_data = netxen_get_dump_data,
  	.set_dump = netxen_set_dump,
  	.get_link_ksettings = netxen_nic_get_link_ksettings,
  	.set_link_ksettings = netxen_nic_set_link_ksettings,
  };
  