netxen_nic_ethtool.c

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/*
 * Copyright (C) 2003 - 2006 NetXen, Inc.
 * All rights reserved.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
 * MA  02111-1307, USA.
 *
 * The full GNU General Public License is included in this distribution
 * in the file called LICENSE.
 *
 * Contact Information:
 *    [e-mail]
 * NetXen,
 * 3965 Freedom Circle, Fourth floor,
 * Santa Clara, CA 95054
 *
 *
 * ethtool support for netxen nic
 *
 */

#include <linux/types.h>
#include <linux/delay.h>
#include <asm/uaccess.h>
#include <linux/pci.h>
#include <asm/io.h>
#include <linux/netdevice.h>
#include <linux/ethtool.h>
#include <linux/version.h>

#include "netxen_nic.h"
#include "netxen_nic_hw.h"
#include "netxen_nic_phan_reg.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[] = {
	{"rcvd_bad_skb", NETXEN_NIC_STAT(stats.rcvdbadskb)},
	{"xmit_called", NETXEN_NIC_STAT(stats.xmitcalled)},
	{"xmited_frames", NETXEN_NIC_STAT(stats.xmitedframes)},
	{"xmit_finished", NETXEN_NIC_STAT(stats.xmitfinished)},
	{"bad_skb_len", NETXEN_NIC_STAT(stats.badskblen)},
	{"no_cmd_desc", NETXEN_NIC_STAT(stats.nocmddescriptor)},
	{"polled", NETXEN_NIC_STAT(stats.polled)},
	{"uphappy", NETXEN_NIC_STAT(stats.uphappy)},
	{"updropped", NETXEN_NIC_STAT(stats.updropped)},
	{"uplcong", NETXEN_NIC_STAT(stats.uplcong)},
	{"uphcong", NETXEN_NIC_STAT(stats.uphcong)},
	{"upmcong", NETXEN_NIC_STAT(stats.upmcong)},
	{"updunno", NETXEN_NIC_STAT(stats.updunno)},
	{"skb_freed", NETXEN_NIC_STAT(stats.skbfreed)},
	{"tx_dropped", NETXEN_NIC_STAT(stats.txdropped)},
	{"tx_null_skb", NETXEN_NIC_STAT(stats.txnullskb)},
	{"csummed", NETXEN_NIC_STAT(stats.csummed)},
	{"no_rcv", NETXEN_NIC_STAT(stats.no_rcv)},
	{"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 sizeof(netxen_nic_gstrings_test) / ETH_GSTRING_LEN

#define NETXEN_NIC_REGS_COUNT 42
#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;

	strncpy(drvinfo->driver, netxen_nic_driver_name, 32);
	strncpy(drvinfo->version, NETXEN_NIC_LINUX_VERSIONID, 32);
	fw_major = readl(NETXEN_CRB_NORMALIZE(adapter,
					      NETXEN_FW_VERSION_MAJOR));
	fw_minor = readl(NETXEN_CRB_NORMALIZE(adapter,
					      NETXEN_FW_VERSION_MINOR));
	fw_build = readl(NETXEN_CRB_NORMALIZE(adapter, NETXEN_FW_VERSION_SUB));
	sprintf(drvinfo->fw_version, "%d.%d.%d", fw_major, fw_minor, fw_build);

	strncpy(drvinfo->bus_info, pci_name(adapter->pdev), 32);
	drvinfo->regdump_len = NETXEN_NIC_REGS_LEN;
	drvinfo->eedump_len = netxen_nic_get_eeprom_len(dev);
}

static int
netxen_nic_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
{
	struct netxen_adapter *adapter = netdev_priv(dev);
	struct netxen_board_info *boardinfo = &adapter->ahw.boardcfg;

	/* read which mode */
	if (adapter->ahw.board_type == NETXEN_NIC_GBE) {
		ecmd->supported = (SUPPORTED_10baseT_Half |
				   SUPPORTED_10baseT_Full |
				   SUPPORTED_100baseT_Half |
				   SUPPORTED_100baseT_Full |
				   SUPPORTED_1000baseT_Half |
				   SUPPORTED_1000baseT_Full);

		ecmd->advertising = (ADVERTISED_100baseT_Half |
				     ADVERTISED_100baseT_Full |
				     ADVERTISED_1000baseT_Half |
				     ADVERTISED_1000baseT_Full);

		ecmd->port = PORT_TP;

		if (netif_running(dev)) {
			ecmd->speed = adapter->link_speed;
			ecmd->duplex = adapter->link_duplex;
		} else
			return -EIO;	/* link absent */
	} else if (adapter->ahw.board_type == NETXEN_NIC_XGBE) {
		ecmd->supported = (SUPPORTED_TP |
				   SUPPORTED_1000baseT_Full |
				   SUPPORTED_10000baseT_Full);
		ecmd->advertising = (ADVERTISED_TP |
				     ADVERTISED_1000baseT_Full |
				     ADVERTISED_10000baseT_Full);
		ecmd->port = PORT_TP;

		ecmd->speed = SPEED_10000;
		ecmd->duplex = DUPLEX_FULL;
		ecmd->autoneg = AUTONEG_DISABLE;
	} else
		return -EIO;

	ecmd->phy_address = adapter->portnum;
	ecmd->transceiver = XCVR_EXTERNAL;

	switch ((netxen_brdtype_t) boardinfo->board_type) {
	case NETXEN_BRDTYPE_P2_SB35_4G:
	case NETXEN_BRDTYPE_P2_SB31_2G:
		ecmd->supported |= SUPPORTED_Autoneg;
		ecmd->advertising |= ADVERTISED_Autoneg;
	case NETXEN_BRDTYPE_P2_SB31_10G_CX4:
		ecmd->supported |= SUPPORTED_TP;
		ecmd->advertising |= ADVERTISED_TP;
		ecmd->port = PORT_TP;
		ecmd->autoneg = (boardinfo->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:
		ecmd->supported |= SUPPORTED_MII;
		ecmd->advertising |= ADVERTISED_MII;
		ecmd->port = PORT_FIBRE;
		ecmd->autoneg = AUTONEG_DISABLE;
		break;
	case NETXEN_BRDTYPE_P2_SB31_10G:
		ecmd->supported |= SUPPORTED_FIBRE;
		ecmd->advertising |= ADVERTISED_FIBRE;
		ecmd->port = PORT_FIBRE;
		ecmd->autoneg = AUTONEG_DISABLE;
		break;
	default:
		printk(KERN_ERR "netxen-nic: Unsupported board model %d\n",
		       (netxen_brdtype_t) boardinfo->board_type);
		return -EIO;
	}

	return 0;
}

static int
netxen_nic_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
{
	struct netxen_adapter *adapter = netdev_priv(dev);
	__u32 status;

	/* read which mode */
	if (adapter->ahw.board_type == NETXEN_NIC_GBE) {
		/* autonegotiation */
		if (adapter->phy_write
		    && adapter->phy_write(adapter,
					  NETXEN_NIU_GB_MII_MGMT_ADDR_AUTONEG,
					  ecmd->autoneg) != 0)
			return -EIO;
		else
			adapter->link_autoneg = ecmd->autoneg;

		if (adapter->phy_read
		    && adapter->phy_read(adapter,
					 NETXEN_NIU_GB_MII_MGMT_ADDR_PHY_STATUS,
					 &status) != 0)
			return -EIO;

		/* speed */
		switch (ecmd->speed) {
		case SPEED_10:
			netxen_set_phy_speed(status, 0);
			break;
		case SPEED_100:
			netxen_set_phy_speed(status, 1);
			break;
		case SPEED_1000:
			netxen_set_phy_speed(status, 2);
			break;
		}
		/* set duplex mode */
		if (ecmd->duplex == DUPLEX_HALF)
			netxen_clear_phy_duplex(status);
		if (ecmd->duplex == DUPLEX_FULL)
			netxen_set_phy_duplex(status);
		if (adapter->phy_write
		    && adapter->phy_write(adapter,
					  NETXEN_NIU_GB_MII_MGMT_ADDR_PHY_STATUS,
					  *((int *)&status)) != 0)
			return -EIO;
		else {
			adapter->link_speed = ecmd->speed;
			adapter->link_duplex = ecmd->duplex;
		}
	} else
		return -EOPNOTSUPP;

	if (netif_running(dev)) {
		dev->stop(dev);
		dev->open(dev);
	}
	return 0;
}

static int netxen_nic_get_regs_len(struct net_device *dev)
{
	return NETXEN_NIC_REGS_LEN;
}

struct netxen_niu_regs {
	__u32 reg[NETXEN_NIC_REGS_COUNT];
};

static struct netxen_niu_regs niu_registers[] = {
	{
	 /* GB Mode */
	 {
	  NETXEN_NIU_GB_SERDES_RESET,
	  NETXEN_NIU_GB0_MII_MODE,
	  NETXEN_NIU_GB1_MII_MODE,
	  NETXEN_NIU_GB2_MII_MODE,
	  NETXEN_NIU_GB3_MII_MODE,
	  NETXEN_NIU_GB0_GMII_MODE,
	  NETXEN_NIU_GB1_GMII_MODE,
	  NETXEN_NIU_GB2_GMII_MODE,
	  NETXEN_NIU_GB3_GMII_MODE,
	  NETXEN_NIU_REMOTE_LOOPBACK,
	  NETXEN_NIU_GB0_HALF_DUPLEX,
	  NETXEN_NIU_GB1_HALF_DUPLEX,
	  NETXEN_NIU_RESET_SYS_FIFOS,
	  NETXEN_NIU_GB_CRC_DROP,
	  NETXEN_NIU_GB_DROP_WRONGADDR,
	  NETXEN_NIU_TEST_MUX_CTL,

	  NETXEN_NIU_GB_MAC_CONFIG_0(0),
	  NETXEN_NIU_GB_MAC_CONFIG_1(0),
	  NETXEN_NIU_GB_HALF_DUPLEX_CTRL(0),
	  NETXEN_NIU_GB_MAX_FRAME_SIZE(0),
	  NETXEN_NIU_GB_TEST_REG(0),
	  NETXEN_NIU_GB_MII_MGMT_CONFIG(0),
	  NETXEN_NIU_GB_MII_MGMT_COMMAND(0),
	  NETXEN_NIU_GB_MII_MGMT_ADDR(0),
	  NETXEN_NIU_GB_MII_MGMT_CTRL(0),
	  NETXEN_NIU_GB_MII_MGMT_STATUS(0),
	  NETXEN_NIU_GB_MII_MGMT_INDICATE(0),
	  NETXEN_NIU_GB_INTERFACE_CTRL(0),
	  NETXEN_NIU_GB_INTERFACE_STATUS(0),
	  NETXEN_NIU_GB_STATION_ADDR_0(0),
	  NETXEN_NIU_GB_STATION_ADDR_1(0),
	  -1,
	  }
	 },
	{
	 /* XG Mode */
	 {
	  NETXEN_NIU_XG_SINGLE_TERM,
	  NETXEN_NIU_XG_DRIVE_HI,
	  NETXEN_NIU_XG_DRIVE_LO,
	  NETXEN_NIU_XG_DTX,
	  NETXEN_NIU_XG_DEQ,
	  NETXEN_NIU_XG_WORD_ALIGN,
	  NETXEN_NIU_XG_RESET,
	  NETXEN_NIU_XG_POWER_DOWN,
	  NETXEN_NIU_XG_RESET_PLL,
	  NETXEN_NIU_XG_SERDES_LOOPBACK,
	  NETXEN_NIU_XG_DO_BYTE_ALIGN,
	  NETXEN_NIU_XG_TX_ENABLE,
	  NETXEN_NIU_XG_RX_ENABLE,
	  NETXEN_NIU_XG_STATUS,
	  NETXEN_NIU_XG_PAUSE_THRESHOLD,
	  NETXEN_NIU_XGE_CONFIG_0,
	  NETXEN_NIU_XGE_CONFIG_1,
	  NETXEN_NIU_XGE_IPG,
	  NETXEN_NIU_XGE_STATION_ADDR_0_HI,
	  NETXEN_NIU_XGE_STATION_ADDR_0_1,
	  NETXEN_NIU_XGE_STATION_ADDR_1_LO,
	  NETXEN_NIU_XGE_STATUS,
	  NETXEN_NIU_XGE_MAX_FRAME_SIZE,
	  NETXEN_NIU_XGE_PAUSE_FRAME_VALUE,
	  NETXEN_NIU_XGE_TX_BYTE_CNT,
	  NETXEN_NIU_XGE_TX_FRAME_CNT,
	  NETXEN_NIU_XGE_RX_BYTE_CNT,
	  NETXEN_NIU_XGE_RX_FRAME_CNT,
	  NETXEN_NIU_XGE_AGGR_ERROR_CNT,
	  NETXEN_NIU_XGE_MULTICAST_FRAME_CNT,
	  NETXEN_NIU_XGE_UNICAST_FRAME_CNT,
	  NETXEN_NIU_XGE_CRC_ERROR_CNT,
	  NETXEN_NIU_XGE_OVERSIZE_FRAME_ERR,
	  NETXEN_NIU_XGE_UNDERSIZE_FRAME_ERR,
	  NETXEN_NIU_XGE_LOCAL_ERROR_CNT,
	  NETXEN_NIU_XGE_REMOTE_ERROR_CNT,
	  NETXEN_NIU_XGE_CONTROL_CHAR_CNT,
	  NETXEN_NIU_XGE_PAUSE_FRAME_CNT,
	  -1,
	  }
	 }
};

static void
netxen_nic_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *p)
{
	struct netxen_adapter *adapter = netdev_priv(dev);
	__u32 mode, *regs_buff = p;
	void __iomem *addr;
	int i, window;

	memset(p, 0, NETXEN_NIC_REGS_LEN);
	regs->version = (1 << 24) | (adapter->ahw.revision_id << 16) |
	    (adapter->pdev)->device;
	/* which mode */
	NETXEN_NIC_LOCKED_READ_REG(NETXEN_NIU_MODE, &regs_buff[0]);
	mode = regs_buff[0];

	/* Common registers to all the modes */
	NETXEN_NIC_LOCKED_READ_REG(NETXEN_NIU_STRAP_VALUE_SAVE_HIGHER,
				   &regs_buff[2]);
	/* GB/XGB Mode */
	mode = (mode / 2) - 1;
	window = 0;
	if (mode <= 1) {
		for (i = 3; niu_registers[mode].reg[i - 3] != -1; i++) {
			/* GB: port specific registers */
			if (mode == 0 && i >= 19)
				window = physical_port[adapter->portnum] *
					NETXEN_NIC_PORT_WINDOW;

			NETXEN_NIC_LOCKED_READ_REG(niu_registers[mode].
						   reg[i - 3] + window,
						   &regs_buff[i]);