root/drivers/net/ethernet/cavium/liquidio/lio_ethtool.c
/**********************************************************************
 * Author: Cavium, Inc.
 *
 * Contact: support@cavium.com
 *          Please include "LiquidIO" in the subject.
 *
 * Copyright (c) 2003-2016 Cavium, Inc.
 *
 * This file is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License, Version 2, as
 * published by the Free Software Foundation.
 *
 * This file is distributed in the hope that it will be useful, but
 * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
 * NONINFRINGEMENT.  See the GNU General Public License for more details.
 ***********************************************************************/
#include <linux/ethtool.h>
#include <linux/netdevice.h>
#include <linux/net_tstamp.h>
#include <linux/pci.h>
#include "liquidio_common.h"
#include "octeon_droq.h"
#include "octeon_iq.h"
#include "response_manager.h"
#include "octeon_device.h"
#include "octeon_nic.h"
#include "octeon_main.h"
#include "octeon_network.h"
#include "cn66xx_regs.h"
#include "cn66xx_device.h"
#include "cn23xx_pf_device.h"
#include "cn23xx_vf_device.h"

static int lio_reset_queues(struct net_device *netdev, uint32_t num_qs);

struct oct_intrmod_resp {
        u64     rh;
        struct oct_intrmod_cfg intrmod;
        u64     status;
};

struct oct_mdio_cmd_resp {
        u64 rh;
        struct oct_mdio_cmd resp;
        u64 status;
};

#define OCT_MDIO45_RESP_SIZE   (sizeof(struct oct_mdio_cmd_resp))

/* Octeon's interface mode of operation */
enum {
        INTERFACE_MODE_DISABLED,
        INTERFACE_MODE_RGMII,
        INTERFACE_MODE_GMII,
        INTERFACE_MODE_SPI,
        INTERFACE_MODE_PCIE,
        INTERFACE_MODE_XAUI,
        INTERFACE_MODE_SGMII,
        INTERFACE_MODE_PICMG,
        INTERFACE_MODE_NPI,
        INTERFACE_MODE_LOOP,
        INTERFACE_MODE_SRIO,
        INTERFACE_MODE_ILK,
        INTERFACE_MODE_RXAUI,
        INTERFACE_MODE_QSGMII,
        INTERFACE_MODE_AGL,
        INTERFACE_MODE_XLAUI,
        INTERFACE_MODE_XFI,
        INTERFACE_MODE_10G_KR,
        INTERFACE_MODE_40G_KR4,
        INTERFACE_MODE_MIXED,
};

#define OCT_ETHTOOL_REGDUMP_LEN  4096
#define OCT_ETHTOOL_REGDUMP_LEN_23XX  (4096 * 11)
#define OCT_ETHTOOL_REGDUMP_LEN_23XX_VF  (4096 * 2)
#define OCT_ETHTOOL_REGSVER  1

/* statistics of PF */
static const char oct_stats_strings[][ETH_GSTRING_LEN] = {
        "rx_packets",
        "tx_packets",
        "rx_bytes",
        "tx_bytes",
        "rx_errors",
        "tx_errors",
        "rx_dropped",
        "tx_dropped",

        "tx_total_sent",
        "tx_total_fwd",
        "tx_err_pko",
        "tx_err_pki",
        "tx_err_link",
        "tx_err_drop",

        "tx_tso",
        "tx_tso_packets",
        "tx_tso_err",
        "tx_vxlan",

        "tx_mcast",
        "tx_bcast",

        "mac_tx_total_pkts",
        "mac_tx_total_bytes",
        "mac_tx_mcast_pkts",
        "mac_tx_bcast_pkts",
        "mac_tx_ctl_packets",
        "mac_tx_total_collisions",
        "mac_tx_one_collision",
        "mac_tx_multi_collision",
        "mac_tx_max_collision_fail",
        "mac_tx_max_deferral_fail",
        "mac_tx_fifo_err",
        "mac_tx_runts",

        "rx_total_rcvd",
        "rx_total_fwd",
        "rx_mcast",
        "rx_bcast",
        "rx_jabber_err",
        "rx_l2_err",
        "rx_frame_err",
        "rx_err_pko",
        "rx_err_link",
        "rx_err_drop",

        "rx_vxlan",
        "rx_vxlan_err",

        "rx_lro_pkts",
        "rx_lro_bytes",
        "rx_total_lro",

        "rx_lro_aborts",
        "rx_lro_aborts_port",
        "rx_lro_aborts_seq",
        "rx_lro_aborts_tsval",
        "rx_lro_aborts_timer",
        "rx_fwd_rate",

        "mac_rx_total_rcvd",
        "mac_rx_bytes",
        "mac_rx_total_bcst",
        "mac_rx_total_mcst",
        "mac_rx_runts",
        "mac_rx_ctl_packets",
        "mac_rx_fifo_err",
        "mac_rx_dma_drop",
        "mac_rx_fcs_err",

        "link_state_changes",
};

/* statistics of VF */
static const char oct_vf_stats_strings[][ETH_GSTRING_LEN] = {
        "rx_packets",
        "tx_packets",
        "rx_bytes",
        "tx_bytes",
        "rx_errors",
        "tx_errors",
        "rx_dropped",
        "tx_dropped",
        "rx_mcast",
        "tx_mcast",
        "rx_bcast",
        "tx_bcast",
        "link_state_changes",
};

/* statistics of host tx queue */
static const char oct_iq_stats_strings[][ETH_GSTRING_LEN] = {
        "packets",
        "bytes",
        "dropped",
        "iq_busy",
        "sgentry_sent",

        "fw_instr_posted",
        "fw_instr_processed",
        "fw_instr_dropped",
        "fw_bytes_sent",

        "tso",
        "vxlan",
        "txq_restart",
};

/* statistics of host rx queue */
static const char oct_droq_stats_strings[][ETH_GSTRING_LEN] = {
        "packets",
        "bytes",
        "dropped",
        "dropped_nomem",
        "dropped_toomany",
        "fw_dropped",
        "fw_pkts_received",
        "fw_bytes_received",
        "fw_dropped_nodispatch",

        "vxlan",
        "buffer_alloc_failure",
};

/* LiquidIO driver private flags */
static const char oct_priv_flags_strings[][ETH_GSTRING_LEN] = {
};

#define OCTNIC_NCMD_AUTONEG_ON  0x1
#define OCTNIC_NCMD_PHY_ON      0x2

static int lio_get_link_ksettings(struct net_device *netdev,
                                  struct ethtool_link_ksettings *ecmd)
{
        struct lio *lio = GET_LIO(netdev);
        struct octeon_device *oct = lio->oct_dev;
        struct oct_link_info *linfo;

        linfo = &lio->linfo;

        ethtool_link_ksettings_zero_link_mode(ecmd, supported);
        ethtool_link_ksettings_zero_link_mode(ecmd, advertising);

        switch (linfo->link.s.phy_type) {
        case LIO_PHY_PORT_TP:
                ecmd->base.port = PORT_TP;
                ecmd->base.autoneg = AUTONEG_DISABLE;
                ethtool_link_ksettings_add_link_mode(ecmd, supported, TP);
                ethtool_link_ksettings_add_link_mode(ecmd, supported, Pause);
                ethtool_link_ksettings_add_link_mode(ecmd, supported,
                                                     10000baseT_Full);

                ethtool_link_ksettings_add_link_mode(ecmd, advertising, Pause);
                ethtool_link_ksettings_add_link_mode(ecmd, advertising,
                                                     10000baseT_Full);

                break;

        case LIO_PHY_PORT_FIBRE:
                if (linfo->link.s.if_mode == INTERFACE_MODE_XAUI ||
                    linfo->link.s.if_mode == INTERFACE_MODE_RXAUI ||
                    linfo->link.s.if_mode == INTERFACE_MODE_XLAUI ||
                    linfo->link.s.if_mode == INTERFACE_MODE_XFI) {
                        dev_dbg(&oct->pci_dev->dev, "ecmd->base.transceiver is XCVR_EXTERNAL\n");
                        ecmd->base.transceiver = XCVR_EXTERNAL;
                } else {
                        dev_err(&oct->pci_dev->dev, "Unknown link interface mode: %d\n",
                                linfo->link.s.if_mode);
                }

                ecmd->base.port = PORT_FIBRE;
                ecmd->base.autoneg = AUTONEG_DISABLE;
                ethtool_link_ksettings_add_link_mode(ecmd, supported, FIBRE);

                ethtool_link_ksettings_add_link_mode(ecmd, supported, Pause);
                ethtool_link_ksettings_add_link_mode(ecmd, advertising, Pause);
                if (oct->subsystem_id == OCTEON_CN2350_25GB_SUBSYS_ID ||
                    oct->subsystem_id == OCTEON_CN2360_25GB_SUBSYS_ID) {
                        if (OCTEON_CN23XX_PF(oct)) {
                                ethtool_link_ksettings_add_link_mode
                                        (ecmd, supported, 25000baseSR_Full);
                                ethtool_link_ksettings_add_link_mode
                                        (ecmd, supported, 25000baseKR_Full);
                                ethtool_link_ksettings_add_link_mode
                                        (ecmd, supported, 25000baseCR_Full);

                                if (oct->no_speed_setting == 0)  {
                                        ethtool_link_ksettings_add_link_mode
                                                (ecmd, supported,
                                                 10000baseSR_Full);
                                        ethtool_link_ksettings_add_link_mode
                                                (ecmd, supported,
                                                 10000baseKR_Full);
                                        ethtool_link_ksettings_add_link_mode
                                                (ecmd, supported,
                                                 10000baseCR_Full);
                                }

                                if (oct->no_speed_setting == 0) {
                                        liquidio_get_speed(lio);
                                        liquidio_get_fec(lio);
                                } else {
                                        oct->speed_setting = 25;
                                }

                                if (oct->speed_setting == 10) {
                                        ethtool_link_ksettings_add_link_mode
                                                (ecmd, advertising,
                                                 10000baseSR_Full);
                                        ethtool_link_ksettings_add_link_mode
                                                (ecmd, advertising,
                                                 10000baseKR_Full);
                                        ethtool_link_ksettings_add_link_mode
                                                (ecmd, advertising,
                                                 10000baseCR_Full);
                                }
                                if (oct->speed_setting == 25) {
                                        ethtool_link_ksettings_add_link_mode
                                                (ecmd, advertising,
                                                 25000baseSR_Full);
                                        ethtool_link_ksettings_add_link_mode
                                                (ecmd, advertising,
                                                 25000baseKR_Full);
                                        ethtool_link_ksettings_add_link_mode
                                                (ecmd, advertising,
                                                 25000baseCR_Full);
                                }

                                if (oct->no_speed_setting)
                                        break;

                                ethtool_link_ksettings_add_link_mode
                                        (ecmd, supported, FEC_RS);
                                ethtool_link_ksettings_add_link_mode
                                        (ecmd, supported, FEC_NONE);
                                        /*FEC_OFF*/
                                if (oct->props[lio->ifidx].fec == 1) {
                                        /* ETHTOOL_FEC_RS */
                                        ethtool_link_ksettings_add_link_mode
                                                (ecmd, advertising, FEC_RS);
                                } else {
                                        /* ETHTOOL_FEC_OFF */
                                        ethtool_link_ksettings_add_link_mode
                                                (ecmd, advertising, FEC_NONE);
                                }
                        } else { /* VF */
                                if (linfo->link.s.speed == 10000) {
                                        ethtool_link_ksettings_add_link_mode
                                                (ecmd, supported,
                                                 10000baseSR_Full);
                                        ethtool_link_ksettings_add_link_mode
                                                (ecmd, supported,
                                                 10000baseKR_Full);
                                        ethtool_link_ksettings_add_link_mode
                                                (ecmd, supported,
                                                 10000baseCR_Full);

                                        ethtool_link_ksettings_add_link_mode
                                                (ecmd, advertising,
                                                 10000baseSR_Full);
                                        ethtool_link_ksettings_add_link_mode
                                                (ecmd, advertising,
                                                 10000baseKR_Full);
                                        ethtool_link_ksettings_add_link_mode
                                                (ecmd, advertising,
                                                 10000baseCR_Full);
                                }

                                if (linfo->link.s.speed == 25000) {
                                        ethtool_link_ksettings_add_link_mode
                                                (ecmd, supported,
                                                 25000baseSR_Full);
                                        ethtool_link_ksettings_add_link_mode
                                                (ecmd, supported,
                                                 25000baseKR_Full);
                                        ethtool_link_ksettings_add_link_mode
                                                (ecmd, supported,
                                                 25000baseCR_Full);

                                        ethtool_link_ksettings_add_link_mode
                                                (ecmd, advertising,
                                                 25000baseSR_Full);
                                        ethtool_link_ksettings_add_link_mode
                                                (ecmd, advertising,
                                                 25000baseKR_Full);
                                        ethtool_link_ksettings_add_link_mode
                                                (ecmd, advertising,
                                                 25000baseCR_Full);
                                }
                        }
                } else {
                        ethtool_link_ksettings_add_link_mode(ecmd, supported,
                                                             10000baseT_Full);
                        ethtool_link_ksettings_add_link_mode(ecmd, advertising,
                                                             10000baseT_Full);
                }
                break;
        }

        if (linfo->link.s.link_up) {
                ecmd->base.speed = linfo->link.s.speed;
                ecmd->base.duplex = linfo->link.s.duplex;
        } else {
                ecmd->base.speed = SPEED_UNKNOWN;
                ecmd->base.duplex = DUPLEX_UNKNOWN;
        }

        return 0;
}

static int lio_set_link_ksettings(struct net_device *netdev,
                                  const struct ethtool_link_ksettings *ecmd)
{
        const int speed = ecmd->base.speed;
        struct lio *lio = GET_LIO(netdev);
        struct oct_link_info *linfo;
        struct octeon_device *oct;

        oct = lio->oct_dev;

        linfo = &lio->linfo;

        if (!(oct->subsystem_id == OCTEON_CN2350_25GB_SUBSYS_ID ||
              oct->subsystem_id == OCTEON_CN2360_25GB_SUBSYS_ID))
                return -EOPNOTSUPP;

        if (oct->no_speed_setting) {
                dev_err(&oct->pci_dev->dev, "%s: Changing speed is not supported\n",
                        __func__);
                return -EOPNOTSUPP;
        }

        if ((ecmd->base.duplex != DUPLEX_UNKNOWN &&
             ecmd->base.duplex != linfo->link.s.duplex) ||
             ecmd->base.autoneg != AUTONEG_DISABLE ||
            (ecmd->base.speed != 10000 && ecmd->base.speed != 25000 &&
             ecmd->base.speed != SPEED_UNKNOWN))
                return -EOPNOTSUPP;

        if ((oct->speed_boot == speed / 1000) &&
            oct->speed_boot == oct->speed_setting)
                return 0;

        liquidio_set_speed(lio, speed / 1000);

        dev_dbg(&oct->pci_dev->dev, "Port speed is set to %dG\n",
                oct->speed_setting);

        return 0;
}

static void
lio_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo)
{
        struct lio *lio;
        struct octeon_device *oct;

        lio = GET_LIO(netdev);
        oct = lio->oct_dev;

        memset(drvinfo, 0, sizeof(struct ethtool_drvinfo));
        strscpy(drvinfo->driver, "liquidio", sizeof(drvinfo->driver));
        strscpy(drvinfo->fw_version, oct->fw_info.liquidio_firmware_version,
                sizeof(drvinfo->fw_version));
        strscpy(drvinfo->bus_info, pci_name(oct->pci_dev),
                sizeof(drvinfo->bus_info));
}

static void
lio_get_vf_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo)
{
        struct octeon_device *oct;
        struct lio *lio;

        lio = GET_LIO(netdev);
        oct = lio->oct_dev;

        memset(drvinfo, 0, sizeof(struct ethtool_drvinfo));
        strscpy(drvinfo->driver, "liquidio_vf", sizeof(drvinfo->driver));
        strscpy(drvinfo->fw_version, oct->fw_info.liquidio_firmware_version,
                sizeof(drvinfo->fw_version));
        strscpy(drvinfo->bus_info, pci_name(oct->pci_dev),
                sizeof(drvinfo->bus_info));
}

static int
lio_send_queue_count_update(struct net_device *netdev, uint32_t num_queues)
{
        struct lio *lio = GET_LIO(netdev);
        struct octeon_device *oct = lio->oct_dev;
        struct octnic_ctrl_pkt nctrl;
        int ret = 0;

        memset(&nctrl, 0, sizeof(struct octnic_ctrl_pkt));

        nctrl.ncmd.u64 = 0;
        nctrl.ncmd.s.cmd = OCTNET_CMD_QUEUE_COUNT_CTL;
        nctrl.ncmd.s.param1 = num_queues;
        nctrl.ncmd.s.param2 = num_queues;
        nctrl.iq_no = lio->linfo.txpciq[0].s.q_no;
        nctrl.netpndev = (u64)netdev;
        nctrl.cb_fn = liquidio_link_ctrl_cmd_completion;

        ret = octnet_send_nic_ctrl_pkt(lio->oct_dev, &nctrl);
        if (ret) {
                dev_err(&oct->pci_dev->dev, "Failed to send Queue reset command (ret: 0x%x)\n",
                        ret);
                return -1;
        }

        return 0;
}

static void
lio_ethtool_get_channels(struct net_device *dev,
                         struct ethtool_channels *channel)
{
        struct lio *lio = GET_LIO(dev);
        struct octeon_device *oct = lio->oct_dev;
        u32 max_rx = 0, max_tx = 0, tx_count = 0, rx_count = 0;
        u32 combined_count = 0, max_combined = 0;

        if (OCTEON_CN6XXX(oct)) {
                struct octeon_config *conf6x = CHIP_CONF(oct, cn6xxx);

                max_rx = CFG_GET_OQ_MAX_Q(conf6x);
                max_tx = CFG_GET_IQ_MAX_Q(conf6x);
                rx_count = CFG_GET_NUM_RXQS_NIC_IF(conf6x, lio->ifidx);
                tx_count = CFG_GET_NUM_TXQS_NIC_IF(conf6x, lio->ifidx);
        } else if (OCTEON_CN23XX_PF(oct)) {
                if (oct->sriov_info.sriov_enabled) {
                        max_combined = lio->linfo.num_txpciq;
                } else {
                        struct octeon_config *conf23_pf =
                                CHIP_CONF(oct, cn23xx_pf);

                        max_combined = CFG_GET_IQ_MAX_Q(conf23_pf);
                }
                combined_count = oct->num_iqs;
        } else if (OCTEON_CN23XX_VF(oct)) {
                u64 reg_val = 0ULL;
                u64 ctrl = CN23XX_VF_SLI_IQ_PKT_CONTROL64(0);

                reg_val = octeon_read_csr64(oct, ctrl);
                reg_val = reg_val >> CN23XX_PKT_INPUT_CTL_RPVF_POS;
                max_combined = reg_val & CN23XX_PKT_INPUT_CTL_RPVF_MASK;
                combined_count = oct->num_iqs;
        }

        channel->max_rx = max_rx;
        channel->max_tx = max_tx;
        channel->max_combined = max_combined;
        channel->rx_count = rx_count;
        channel->tx_count = tx_count;
        channel->combined_count = combined_count;
}

static int
lio_irq_reallocate_irqs(struct octeon_device *oct, uint32_t num_ioqs)
{
        struct msix_entry *msix_entries;
        int num_msix_irqs = 0;
        int i;

        if (!oct->msix_on)
                return 0;

        /* Disable the input and output queues now. No more packets will
         * arrive from Octeon.
         */
        oct->fn_list.disable_interrupt(oct, OCTEON_ALL_INTR);

        if (oct->msix_on) {
                if (OCTEON_CN23XX_PF(oct))
                        num_msix_irqs = oct->num_msix_irqs - 1;
                else if (OCTEON_CN23XX_VF(oct))
                        num_msix_irqs = oct->num_msix_irqs;

                msix_entries = (struct msix_entry *)oct->msix_entries;
                for (i = 0; i < num_msix_irqs; i++) {
                        if (oct->ioq_vector[i].vector) {
                                /* clear the affinity_cpumask */
                                irq_set_affinity_hint(msix_entries[i].vector,
                                                      NULL);
                                free_irq(msix_entries[i].vector,
                                         &oct->ioq_vector[i]);
                                oct->ioq_vector[i].vector = 0;
                        }
                }

                /* non-iov vector's argument is oct struct */
                if (OCTEON_CN23XX_PF(oct))
                        free_irq(msix_entries[i].vector, oct);

                pci_disable_msix(oct->pci_dev);
                kfree(oct->msix_entries);
                oct->msix_entries = NULL;
        }

        kfree(oct->irq_name_storage);
        oct->irq_name_storage = NULL;

        if (octeon_allocate_ioq_vector(oct, num_ioqs)) {
                dev_err(&oct->pci_dev->dev, "OCTEON: ioq vector allocation failed\n");
                return -1;
        }

        if (octeon_setup_interrupt(oct, num_ioqs)) {
                dev_info(&oct->pci_dev->dev, "Setup interrupt failed\n");
                return -1;
        }

        /* Enable Octeon device interrupts */
        oct->fn_list.enable_interrupt(oct, OCTEON_ALL_INTR);

        return 0;
}

static int
lio_ethtool_set_channels(struct net_device *dev,
                         struct ethtool_channels *channel)
{
        u32 combined_count, max_combined;
        struct lio *lio = GET_LIO(dev);
        struct octeon_device *oct = lio->oct_dev;
        int stopped = 0;

        if (strcmp(oct->fw_info.liquidio_firmware_version, "1.6.1") < 0) {
                dev_err(&oct->pci_dev->dev, "Minimum firmware version required is 1.6.1\n");
                return -EINVAL;
        }

        if (!channel->combined_count || channel->other_count ||
            channel->rx_count || channel->tx_count)
                return -EINVAL;

        combined_count = channel->combined_count;

        if (OCTEON_CN23XX_PF(oct)) {
                if (oct->sriov_info.sriov_enabled) {
                        max_combined = lio->linfo.num_txpciq;
                } else {
                        struct octeon_config *conf23_pf =
                                CHIP_CONF(oct,
                                          cn23xx_pf);

                        max_combined =
                                CFG_GET_IQ_MAX_Q(conf23_pf);
                }
        } else if (OCTEON_CN23XX_VF(oct)) {
                u64 reg_val = 0ULL;
                u64 ctrl = CN23XX_VF_SLI_IQ_PKT_CONTROL64(0);

                reg_val = octeon_read_csr64(oct, ctrl);
                reg_val = reg_val >> CN23XX_PKT_INPUT_CTL_RPVF_POS;
                max_combined = reg_val & CN23XX_PKT_INPUT_CTL_RPVF_MASK;
        } else {
                return -EINVAL;
        }

        if (combined_count > max_combined || combined_count < 1)
                return -EINVAL;

        if (combined_count == oct->num_iqs)
                return 0;

        ifstate_set(lio, LIO_IFSTATE_RESETTING);

        if (netif_running(dev)) {
                dev->netdev_ops->ndo_stop(dev);
                stopped = 1;
        }

        if (lio_reset_queues(dev, combined_count))
                return -EINVAL;

        if (stopped)
                dev->netdev_ops->ndo_open(dev);

        ifstate_reset(lio, LIO_IFSTATE_RESETTING);

        return 0;
}

static int lio_get_eeprom_len(struct net_device *netdev)
{
        u8 buf[192];
        struct lio *lio = GET_LIO(netdev);
        struct octeon_device *oct_dev = lio->oct_dev;
        struct octeon_board_info *board_info;
        int len;

        board_info = (struct octeon_board_info *)(&oct_dev->boardinfo);
        len = sprintf(buf, "boardname:%s serialnum:%s maj:%lld min:%lld\n",
                      board_info->name, board_info->serial_number,
                      board_info->major, board_info->minor);

        return len;
}

static int
lio_get_eeprom(struct net_device *netdev, struct ethtool_eeprom *eeprom,
               u8 *bytes)
{
        struct lio *lio = GET_LIO(netdev);
        struct octeon_device *oct_dev = lio->oct_dev;
        struct octeon_board_info *board_info;

        if (eeprom->offset)
                return -EINVAL;

        eeprom->magic = oct_dev->pci_dev->vendor;
        board_info = (struct octeon_board_info *)(&oct_dev->boardinfo);
        sprintf((char *)bytes,
                "boardname:%s serialnum:%s maj:%lld min:%lld\n",
                board_info->name, board_info->serial_number,
                board_info->major, board_info->minor);

        return 0;
}

static int octnet_gpio_access(struct net_device *netdev, int addr, int val)
{
        struct lio *lio = GET_LIO(netdev);
        struct octeon_device *oct = lio->oct_dev;
        struct octnic_ctrl_pkt nctrl;
        int ret = 0;

        memset(&nctrl, 0, sizeof(struct octnic_ctrl_pkt));

        nctrl.ncmd.u64 = 0;
        nctrl.ncmd.s.cmd = OCTNET_CMD_GPIO_ACCESS;
        nctrl.ncmd.s.param1 = addr;
        nctrl.ncmd.s.param2 = val;
        nctrl.iq_no = lio->linfo.txpciq[0].s.q_no;
        nctrl.netpndev = (u64)netdev;
        nctrl.cb_fn = liquidio_link_ctrl_cmd_completion;

        ret = octnet_send_nic_ctrl_pkt(lio->oct_dev, &nctrl);
        if (ret) {
                dev_err(&oct->pci_dev->dev,
                        "Failed to configure gpio value, ret=%d\n", ret);
                return -EINVAL;
        }

        return 0;
}

static int octnet_id_active(struct net_device *netdev, int val)
{
        struct lio *lio = GET_LIO(netdev);
        struct octeon_device *oct = lio->oct_dev;
        struct octnic_ctrl_pkt nctrl;
        int ret = 0;

        memset(&nctrl, 0, sizeof(struct octnic_ctrl_pkt));

        nctrl.ncmd.u64 = 0;
        nctrl.ncmd.s.cmd = OCTNET_CMD_ID_ACTIVE;
        nctrl.ncmd.s.param1 = val;
        nctrl.iq_no = lio->linfo.txpciq[0].s.q_no;
        nctrl.netpndev = (u64)netdev;
        nctrl.cb_fn = liquidio_link_ctrl_cmd_completion;

        ret = octnet_send_nic_ctrl_pkt(lio->oct_dev, &nctrl);
        if (ret) {
                dev_err(&oct->pci_dev->dev,
                        "Failed to configure gpio value, ret=%d\n", ret);
                return -EINVAL;
        }

        return 0;
}

/* This routine provides PHY access routines for
 * mdio  clause45 .
 */
static int
octnet_mdio45_access(struct lio *lio, int op, int loc, int *value)
{
        struct octeon_device *oct_dev = lio->oct_dev;
        struct octeon_soft_command *sc;
        struct oct_mdio_cmd_resp *mdio_cmd_rsp;
        struct oct_mdio_cmd *mdio_cmd;
        int retval = 0;

        sc = (struct octeon_soft_command *)
                octeon_alloc_soft_command(oct_dev,
                                          sizeof(struct oct_mdio_cmd),
                                          sizeof(struct oct_mdio_cmd_resp), 0);

        if (!sc)
                return -ENOMEM;

        mdio_cmd_rsp = (struct oct_mdio_cmd_resp *)sc->virtrptr;
        mdio_cmd = (struct oct_mdio_cmd *)sc->virtdptr;

        mdio_cmd->op = op;
        mdio_cmd->mdio_addr = loc;
        if (op)
                mdio_cmd->value1 = *value;
        octeon_swap_8B_data((u64 *)mdio_cmd, sizeof(struct oct_mdio_cmd) / 8);

        sc->iq_no = lio->linfo.txpciq[0].s.q_no;

        octeon_prepare_soft_command(oct_dev, sc, OPCODE_NIC, OPCODE_NIC_MDIO45,
                                    0, 0, 0);

        init_completion(&sc->complete);
        sc->sc_status = OCTEON_REQUEST_PENDING;

        retval = octeon_send_soft_command(oct_dev, sc);
        if (retval == IQ_SEND_FAILED) {
                dev_err(&oct_dev->pci_dev->dev,
                        "octnet_mdio45_access instruction failed status: %x\n",
                        retval);
                octeon_free_soft_command(oct_dev, sc);
                return -EBUSY;
        } else {
                /* Sleep on a wait queue till the cond flag indicates that the
                 * response arrived
                 */
                retval = wait_for_sc_completion_timeout(oct_dev, sc, 0);
                if (retval)
                        return retval;

                retval = mdio_cmd_rsp->status;
                if (retval) {
                        dev_err(&oct_dev->pci_dev->dev,
                                "octnet mdio45 access failed: %x\n", retval);
                        WRITE_ONCE(sc->caller_is_done, true);
                        return -EBUSY;
                }

                octeon_swap_8B_data((u64 *)(&mdio_cmd_rsp->resp),
                                    sizeof(struct oct_mdio_cmd) / 8);

                if (!op)
                        *value = mdio_cmd_rsp->resp.value1;

                WRITE_ONCE(sc->caller_is_done, true);
        }

        return retval;
}

static int lio_set_phys_id(struct net_device *netdev,
                           enum ethtool_phys_id_state state)
{
        struct lio *lio = GET_LIO(netdev);
        struct octeon_device *oct = lio->oct_dev;
        struct oct_link_info *linfo;
        int value, ret;
        u32 cur_ver;

        linfo = &lio->linfo;
        cur_ver = OCT_FW_VER(oct->fw_info.ver.maj,
                             oct->fw_info.ver.min,
                             oct->fw_info.ver.rev);

        switch (state) {
        case ETHTOOL_ID_ACTIVE:
                if (oct->chip_id == OCTEON_CN66XX) {
                        octnet_gpio_access(netdev, VITESSE_PHY_GPIO_CFG,
                                           VITESSE_PHY_GPIO_DRIVEON);
                        return 2;

                } else if (oct->chip_id == OCTEON_CN68XX) {
                        /* Save the current LED settings */
                        ret = octnet_mdio45_access(lio, 0,
                                                   LIO68XX_LED_BEACON_ADDR,
                                                   &lio->phy_beacon_val);
                        if (ret)
                                return ret;

                        ret = octnet_mdio45_access(lio, 0,
                                                   LIO68XX_LED_CTRL_ADDR,
                                                   &lio->led_ctrl_val);
                        if (ret)
                                return ret;

                        /* Configure Beacon values */
                        value = LIO68XX_LED_BEACON_CFGON;
                        ret = octnet_mdio45_access(lio, 1,
                                                   LIO68XX_LED_BEACON_ADDR,
                                                   &value);
                        if (ret)
                                return ret;

                        value = LIO68XX_LED_CTRL_CFGON;
                        ret = octnet_mdio45_access(lio, 1,
                                                   LIO68XX_LED_CTRL_ADDR,
                                                   &value);
                        if (ret)
                                return ret;
                } else if (oct->chip_id == OCTEON_CN23XX_PF_VID) {
                        octnet_id_active(netdev, LED_IDENTIFICATION_ON);
                        if (linfo->link.s.phy_type == LIO_PHY_PORT_TP &&
                            cur_ver > OCT_FW_VER(1, 7, 2))
                                return 2;
                        else
                                return 0;
                } else {
                        return -EINVAL;
                }
                break;

        case ETHTOOL_ID_ON:
                if (oct->chip_id == OCTEON_CN23XX_PF_VID &&
                    linfo->link.s.phy_type == LIO_PHY_PORT_TP &&
                    cur_ver > OCT_FW_VER(1, 7, 2))
                        octnet_id_active(netdev, LED_IDENTIFICATION_ON);
                else if (oct->chip_id == OCTEON_CN66XX)
                        octnet_gpio_access(netdev, VITESSE_PHY_GPIO_CFG,
                                           VITESSE_PHY_GPIO_HIGH);
                else
                        return -EINVAL;

                break;

        case ETHTOOL_ID_OFF:
                if (oct->chip_id == OCTEON_CN23XX_PF_VID &&
                    linfo->link.s.phy_type == LIO_PHY_PORT_TP &&
                    cur_ver > OCT_FW_VER(1, 7, 2))
                        octnet_id_active(netdev, LED_IDENTIFICATION_OFF);
                else if (oct->chip_id == OCTEON_CN66XX)
                        octnet_gpio_access(netdev, VITESSE_PHY_GPIO_CFG,
                                           VITESSE_PHY_GPIO_LOW);
                else
                        return -EINVAL;

                break;

        case ETHTOOL_ID_INACTIVE:
                if (oct->chip_id == OCTEON_CN66XX) {
                        octnet_gpio_access(netdev, VITESSE_PHY_GPIO_CFG,
                                           VITESSE_PHY_GPIO_DRIVEOFF);
                } else if (oct->chip_id == OCTEON_CN68XX) {
                        /* Restore LED settings */
                        ret = octnet_mdio45_access(lio, 1,
                                                   LIO68XX_LED_CTRL_ADDR,
                                                   &lio->led_ctrl_val);
                        if (ret)
                                return ret;

                        ret = octnet_mdio45_access(lio, 1,
                                                   LIO68XX_LED_BEACON_ADDR,
                                                   &lio->phy_beacon_val);
                        if (ret)
                                return ret;
                } else if (oct->chip_id == OCTEON_CN23XX_PF_VID) {
                        octnet_id_active(netdev, LED_IDENTIFICATION_OFF);

                        return 0;
                } else {
                        return -EINVAL;
                }
                break;

        default:
                return -EINVAL;
        }

        return 0;
}

static void
lio_ethtool_get_ringparam(struct net_device *netdev,
                          struct ethtool_ringparam *ering,
                          struct kernel_ethtool_ringparam *kernel_ering,
                          struct netlink_ext_ack *extack)
{
        struct lio *lio = GET_LIO(netdev);
        struct octeon_device *oct = lio->oct_dev;
        u32 tx_max_pending = 0, rx_max_pending = 0, tx_pending = 0,
            rx_pending = 0;

        if (ifstate_check(lio, LIO_IFSTATE_RESETTING))
                return;

        if (OCTEON_CN6XXX(oct)) {
                struct octeon_config *conf6x = CHIP_CONF(oct, cn6xxx);

                tx_max_pending = CN6XXX_MAX_IQ_DESCRIPTORS;
                rx_max_pending = CN6XXX_MAX_OQ_DESCRIPTORS;
                rx_pending = CFG_GET_NUM_RX_DESCS_NIC_IF(conf6x, lio->ifidx);
                tx_pending = CFG_GET_NUM_TX_DESCS_NIC_IF(conf6x, lio->ifidx);
        } else if (OCTEON_CN23XX_PF(oct) || OCTEON_CN23XX_VF(oct)) {
                tx_max_pending = CN23XX_MAX_IQ_DESCRIPTORS;
                rx_max_pending = CN23XX_MAX_OQ_DESCRIPTORS;
                rx_pending = oct->droq[0]->max_count;
                tx_pending = oct->instr_queue[0]->max_count;
        }

        ering->tx_pending = tx_pending;
        ering->tx_max_pending = tx_max_pending;
        ering->rx_pending = rx_pending;
        ering->rx_max_pending = rx_max_pending;
        ering->rx_mini_pending = 0;
        ering->rx_jumbo_pending = 0;
        ering->rx_mini_max_pending = 0;
        ering->rx_jumbo_max_pending = 0;
}

static int lio_23xx_reconfigure_queue_count(struct lio *lio)
{
        struct octeon_device *oct = lio->oct_dev;
        u32 resp_size, data_size;
        struct liquidio_if_cfg_resp *resp;
        struct octeon_soft_command *sc;
        union oct_nic_if_cfg if_cfg;
        struct lio_version *vdata;
        u32 ifidx_or_pfnum;
        int retval;
        int j;

        resp_size = sizeof(struct liquidio_if_cfg_resp);
        data_size = sizeof(struct lio_version);
        sc = (struct octeon_soft_command *)
                octeon_alloc_soft_command(oct, data_size,
                                          resp_size, 0);
        if (!sc) {
                dev_err(&oct->pci_dev->dev, "%s: Failed to allocate soft command\n",
                        __func__);
                return -1;
        }

        resp = (struct liquidio_if_cfg_resp *)sc->virtrptr;
        vdata = (struct lio_version *)sc->virtdptr;

        vdata->major = (__force u16)cpu_to_be16(LIQUIDIO_BASE_MAJOR_VERSION);
        vdata->minor = (__force u16)cpu_to_be16(LIQUIDIO_BASE_MINOR_VERSION);
        vdata->micro = (__force u16)cpu_to_be16(LIQUIDIO_BASE_MICRO_VERSION);

        ifidx_or_pfnum = oct->pf_num;

        if_cfg.u64 = 0;
        if_cfg.s.num_iqueues = oct->sriov_info.num_pf_rings;
        if_cfg.s.num_oqueues = oct->sriov_info.num_pf_rings;
        if_cfg.s.base_queue = oct->sriov_info.pf_srn;
        if_cfg.s.gmx_port_id = oct->pf_num;

        sc->iq_no = 0;
        octeon_prepare_soft_command(oct, sc, OPCODE_NIC,
                                    OPCODE_NIC_QCOUNT_UPDATE, 0,
                                    if_cfg.u64, 0);

        init_completion(&sc->complete);
        sc->sc_status = OCTEON_REQUEST_PENDING;

        retval = octeon_send_soft_command(oct, sc);
        if (retval == IQ_SEND_FAILED) {
                dev_err(&oct->pci_dev->dev,
                        "Sending iq/oq config failed status: %x\n",
                        retval);
                octeon_free_soft_command(oct, sc);
                return -EIO;
        }

        retval = wait_for_sc_completion_timeout(oct, sc, 0);
        if (retval)
                return retval;

        retval = resp->status;
        if (retval) {
                dev_err(&oct->pci_dev->dev,
                        "iq/oq config failed: %x\n", retval);
                WRITE_ONCE(sc->caller_is_done, true);
                return -1;
        }

        octeon_swap_8B_data((u64 *)(&resp->cfg_info),
                            (sizeof(struct liquidio_if_cfg_info)) >> 3);

        lio->ifidx = ifidx_or_pfnum;
        lio->linfo.num_rxpciq = hweight64(resp->cfg_info.iqmask);
        lio->linfo.num_txpciq = hweight64(resp->cfg_info.iqmask);
        for (j = 0; j < lio->linfo.num_rxpciq; j++) {
                lio->linfo.rxpciq[j].u64 =
                        resp->cfg_info.linfo.rxpciq[j].u64;
        }

        for (j = 0; j < lio->linfo.num_txpciq; j++) {
                lio->linfo.txpciq[j].u64 =
                        resp->cfg_info.linfo.txpciq[j].u64;
        }

        lio->linfo.hw_addr = resp->cfg_info.linfo.hw_addr;
        lio->linfo.gmxport = resp->cfg_info.linfo.gmxport;
        lio->linfo.link.u64 = resp->cfg_info.linfo.link.u64;
        lio->txq = lio->linfo.txpciq[0].s.q_no;
        lio->rxq = lio->linfo.rxpciq[0].s.q_no;

        dev_info(&oct->pci_dev->dev, "Queue count updated to %d\n",
                 lio->linfo.num_rxpciq);

        WRITE_ONCE(sc->caller_is_done, true);

        return 0;
}

static int lio_reset_queues(struct net_device *netdev, uint32_t num_qs)
{
        struct lio *lio = GET_LIO(netdev);
        struct octeon_device *oct = lio->oct_dev;
        int i, queue_count_update = 0;
        struct napi_struct *napi, *n;
        int ret;

        schedule_timeout_uninterruptible(msecs_to_jiffies(100));

        if (wait_for_pending_requests(oct))
                dev_err(&oct->pci_dev->dev, "There were pending requests\n");

        if (lio_wait_for_instr_fetch(oct))
                dev_err(&oct->pci_dev->dev, "IQ had pending instructions\n");

        if (octeon_set_io_queues_off(oct)) {
                dev_err(&oct->pci_dev->dev, "Setting io queues off failed\n");
                return -1;
        }

        /* Disable the input and output queues now. No more packets will
         * arrive from Octeon.
         */
        oct->fn_list.disable_io_queues(oct);
        /* Delete NAPI */
        list_for_each_entry_safe(napi, n, &netdev->napi_list, dev_list)
                netif_napi_del(napi);

        if (num_qs != oct->num_iqs) {
                ret = netif_set_real_num_rx_queues(netdev, num_qs);
                if (ret) {
                        dev_err(&oct->pci_dev->dev,
                                "Setting real number rx failed\n");
                        return ret;
                }

                ret = netif_set_real_num_tx_queues(netdev, num_qs);
                if (ret) {
                        dev_err(&oct->pci_dev->dev,
                                "Setting real number tx failed\n");
                        return ret;
                }

                /* The value of queue_count_update decides whether it is the
                 * queue count or the descriptor count that is being
                 * re-configured.
                 */
                queue_count_update = 1;
        }

        /* Re-configuration of queues can happen in two scenarios, SRIOV enabled
         * and SRIOV disabled. Few things like recreating queue zero, resetting
         * glists and IRQs are required for both. For the latter, some more
         * steps like updating sriov_info for the octeon device need to be done.
         */
        if (queue_count_update) {
                cleanup_rx_oom_poll_fn(netdev);

                lio_delete_glists(lio);

                /* Delete mbox for PF which is SRIOV disabled because sriov_info
                 * will be now changed.
                 */
                if ((OCTEON_CN23XX_PF(oct)) && !oct->sriov_info.sriov_enabled)
                        oct->fn_list.free_mbox(oct);
        }

        for (i = 0; i < MAX_OCTEON_OUTPUT_QUEUES(oct); i++) {
                if (!(oct->io_qmask.oq & BIT_ULL(i)))
                        continue;
                octeon_delete_droq(oct, i);
        }

        for (i = 0; i < MAX_OCTEON_INSTR_QUEUES(oct); i++) {
                if (!(oct->io_qmask.iq & BIT_ULL(i)))
                        continue;
                octeon_delete_instr_queue(oct, i);
        }

        if (queue_count_update) {
                /* For PF re-configure sriov related information */
                if ((OCTEON_CN23XX_PF(oct)) &&
                    !oct->sriov_info.sriov_enabled) {
                        oct->sriov_info.num_pf_rings = num_qs;
                        if (cn23xx_sriov_config(oct)) {
                                dev_err(&oct->pci_dev->dev,
                                        "Queue reset aborted: SRIOV config failed\n");
                                return -1;
                        }

                        num_qs = oct->sriov_info.num_pf_rings;
                }
        }

        if (oct->fn_list.setup_device_regs(oct)) {
                dev_err(&oct->pci_dev->dev, "Failed to configure device registers\n");
                return -1;
        }

        /* The following are needed in case of queue count re-configuration and
         * not for descriptor count re-configuration.
         */
        if (queue_count_update) {
                if (octeon_setup_instr_queues(oct))
                        return -1;

                if (octeon_setup_output_queues(oct))
                        return -1;

                /* Recreating mbox for PF that is SRIOV disabled */
                if (OCTEON_CN23XX_PF(oct) && !oct->sriov_info.sriov_enabled) {
                        if (oct->fn_list.setup_mbox(oct)) {
                                dev_err(&oct->pci_dev->dev, "Mailbox setup failed\n");
                                return -1;
                        }
                }

                /* Deleting and recreating IRQs whether the interface is SRIOV
                 * enabled or disabled.
                 */
                if (lio_irq_reallocate_irqs(oct, num_qs)) {
                        dev_err(&oct->pci_dev->dev, "IRQs could not be allocated\n");
                        return -1;
                }

                /* Enable the input and output queues for this Octeon device */
                if (oct->fn_list.enable_io_queues(oct)) {
                        dev_err(&oct->pci_dev->dev, "Failed to enable input/output queues\n");
                        return -1;
                }

                for (i = 0; i < oct->num_oqs; i++)
                        writel(oct->droq[i]->max_count,
                               oct->droq[i]->pkts_credit_reg);

                /* Informing firmware about the new queue count. It is required
                 * for firmware to allocate more number of queues than those at
                 * load time.
                 */
                if (OCTEON_CN23XX_PF(oct) && !oct->sriov_info.sriov_enabled) {
                        if (lio_23xx_reconfigure_queue_count(lio))
                                return -1;
                }
        }

        /* Once firmware is aware of the new value, queues can be recreated */
        if (liquidio_setup_io_queues(oct, 0, num_qs, num_qs)) {
                dev_err(&oct->pci_dev->dev, "I/O queues creation failed\n");
                return -1;
        }

        if (queue_count_update) {
                if (lio_setup_glists(oct, lio, num_qs)) {
                        dev_err(&oct->pci_dev->dev, "Gather list allocation failed\n");
                        return -1;
                }

                if (setup_rx_oom_poll_fn(netdev)) {
                        dev_err(&oct->pci_dev->dev, "lio_setup_rx_oom_poll_fn failed\n");
                        return 1;
                }

                /* Send firmware the information about new number of queues
                 * if the interface is a VF or a PF that is SRIOV enabled.
                 */
                if (oct->sriov_info.sriov_enabled || OCTEON_CN23XX_VF(oct))
                        if (lio_send_queue_count_update(netdev, num_qs))
                                return -1;
        }

        return 0;
}

static int
lio_ethtool_set_ringparam(struct net_device *netdev,
                          struct ethtool_ringparam *ering,
                          struct kernel_ethtool_ringparam *kernel_ering,
                          struct netlink_ext_ack *extack)
{
        u32 rx_count, tx_count, rx_count_old, tx_count_old;
        struct lio *lio = GET_LIO(netdev);
        struct octeon_device *oct = lio->oct_dev;
        int stopped = 0;

        if (!OCTEON_CN23XX_PF(oct) && !OCTEON_CN23XX_VF(oct))
                return -EINVAL;

        if (ering->rx_mini_pending || ering->rx_jumbo_pending)
                return -EINVAL;

        rx_count = clamp_t(u32, ering->rx_pending, CN23XX_MIN_OQ_DESCRIPTORS,
                           CN23XX_MAX_OQ_DESCRIPTORS);
        tx_count = clamp_t(u32, ering->tx_pending, CN23XX_MIN_IQ_DESCRIPTORS,
                           CN23XX_MAX_IQ_DESCRIPTORS);

        rx_count_old = oct->droq[0]->max_count;
        tx_count_old = oct->instr_queue[0]->max_count;

        if (rx_count == rx_count_old && tx_count == tx_count_old)
                return 0;

        ifstate_set(lio, LIO_IFSTATE_RESETTING);

        if (netif_running(netdev)) {
                netdev->netdev_ops->ndo_stop(netdev);
                stopped = 1;
        }

        /* Change RX/TX DESCS  count */
        if (tx_count != tx_count_old)
                CFG_SET_NUM_TX_DESCS_NIC_IF(octeon_get_conf(oct), lio->ifidx,
                                            tx_count);
        if (rx_count != rx_count_old)
                CFG_SET_NUM_RX_DESCS_NIC_IF(octeon_get_conf(oct), lio->ifidx,
                                            rx_count);

        if (lio_reset_queues(netdev, oct->num_iqs))
                goto err_lio_reset_queues;

        if (stopped)
                netdev->netdev_ops->ndo_open(netdev);

        ifstate_reset(lio, LIO_IFSTATE_RESETTING);

        return 0;

err_lio_reset_queues:
        if (tx_count != tx_count_old)
                CFG_SET_NUM_TX_DESCS_NIC_IF(octeon_get_conf(oct), lio->ifidx,
                                            tx_count_old);
        if (rx_count != rx_count_old)
                CFG_SET_NUM_RX_DESCS_NIC_IF(octeon_get_conf(oct), lio->ifidx,
                                            rx_count_old);
        return -EINVAL;
}

static u32 lio_get_msglevel(struct net_device *netdev)
{
        struct lio *lio = GET_LIO(netdev);

        return lio->msg_enable;
}

static void lio_set_msglevel(struct net_device *netdev, u32 msglvl)
{
        struct lio *lio = GET_LIO(netdev);

        if ((msglvl ^ lio->msg_enable) & NETIF_MSG_HW) {
                if (msglvl & NETIF_MSG_HW)
                        liquidio_set_feature(netdev,
                                             OCTNET_CMD_VERBOSE_ENABLE, 0);
                else
                        liquidio_set_feature(netdev,
                                             OCTNET_CMD_VERBOSE_DISABLE, 0);
        }

        lio->msg_enable = msglvl;
}

static void lio_vf_set_msglevel(struct net_device *netdev, u32 msglvl)
{
        struct lio *lio = GET_LIO(netdev);

        lio->msg_enable = msglvl;
}

static void
lio_get_pauseparam(struct net_device *netdev, struct ethtool_pauseparam *pause)
{
        /* Notes: Not supporting any auto negotiation in these
         * drivers. Just report pause frame support.
         */
        struct lio *lio = GET_LIO(netdev);
        struct octeon_device *oct = lio->oct_dev;

        pause->autoneg = 0;

        pause->tx_pause = oct->tx_pause;
        pause->rx_pause = oct->rx_pause;
}

static int
lio_set_pauseparam(struct net_device *netdev, struct ethtool_pauseparam *pause)
{
        /* Notes: Not supporting any auto negotiation in these
         * drivers.
         */
        struct lio *lio = GET_LIO(netdev);
        struct octeon_device *oct = lio->oct_dev;
        struct octnic_ctrl_pkt nctrl;
        struct oct_link_info *linfo = &lio->linfo;

        int ret = 0;

        if (oct->chip_id != OCTEON_CN23XX_PF_VID)
                return -EINVAL;

        if (linfo->link.s.duplex == 0) {
                /*no flow control for half duplex*/
                if (pause->rx_pause || pause->tx_pause)
                        return -EINVAL;
        }

        /*do not support autoneg of link flow control*/
        if (pause->autoneg == AUTONEG_ENABLE)
                return -EINVAL;

        memset(&nctrl, 0, sizeof(struct octnic_ctrl_pkt));

        nctrl.ncmd.u64 = 0;
        nctrl.ncmd.s.cmd = OCTNET_CMD_SET_FLOW_CTL;
        nctrl.iq_no = lio->linfo.txpciq[0].s.q_no;
        nctrl.netpndev = (u64)netdev;
        nctrl.cb_fn = liquidio_link_ctrl_cmd_completion;

        if (pause->rx_pause) {
                /*enable rx pause*/
                nctrl.ncmd.s.param1 = 1;
        } else {
                /*disable rx pause*/
                nctrl.ncmd.s.param1 = 0;
        }

        if (pause->tx_pause) {
                /*enable tx pause*/
                nctrl.ncmd.s.param2 = 1;
        } else {
                /*disable tx pause*/
                nctrl.ncmd.s.param2 = 0;
        }

        ret = octnet_send_nic_ctrl_pkt(lio->oct_dev, &nctrl);
        if (ret) {
                dev_err(&oct->pci_dev->dev,
                        "Failed to set pause parameter, ret=%d\n", ret);
                return -EINVAL;
        }

        oct->rx_pause = pause->rx_pause;
        oct->tx_pause = pause->tx_pause;

        return 0;
}

static void
lio_get_ethtool_stats(struct net_device *netdev,
                      struct ethtool_stats *stats  __attribute__((unused)),
                      u64 *data)
{
        struct lio *lio = GET_LIO(netdev);
        struct octeon_device *oct_dev = lio->oct_dev;
        struct rtnl_link_stats64 lstats;
        int i = 0, j;

        if (ifstate_check(lio, LIO_IFSTATE_RESETTING))
                return;

        netdev->netdev_ops->ndo_get_stats64(netdev, &lstats);
        /*sum of oct->droq[oq_no]->stats->rx_pkts_received */
        data[i++] = lstats.rx_packets;
        /*sum of oct->instr_queue[iq_no]->stats.tx_done */
        data[i++] = lstats.tx_packets;
        /*sum of oct->droq[oq_no]->stats->rx_bytes_received */
        data[i++] = lstats.rx_bytes;
        /*sum of oct->instr_queue[iq_no]->stats.tx_tot_bytes */
        data[i++] = lstats.tx_bytes;
        data[i++] = lstats.rx_errors +
                        oct_dev->link_stats.fromwire.fcs_err +
                        oct_dev->link_stats.fromwire.jabber_err +
                        oct_dev->link_stats.fromwire.l2_err +
                        oct_dev->link_stats.fromwire.frame_err;
        data[i++] = lstats.tx_errors;
        /*sum of oct->droq[oq_no]->stats->rx_dropped +
         *oct->droq[oq_no]->stats->dropped_nodispatch +
         *oct->droq[oq_no]->stats->dropped_toomany +
         *oct->droq[oq_no]->stats->dropped_nomem
         */
        data[i++] = lstats.rx_dropped +
                        oct_dev->link_stats.fromwire.fifo_err +
                        oct_dev->link_stats.fromwire.dmac_drop +
                        oct_dev->link_stats.fromwire.red_drops +
                        oct_dev->link_stats.fromwire.fw_err_pko +
                        oct_dev->link_stats.fromwire.fw_err_link +
                        oct_dev->link_stats.fromwire.fw_err_drop;
        /*sum of oct->instr_queue[iq_no]->stats.tx_dropped */
        data[i++] = lstats.tx_dropped +
                        oct_dev->link_stats.fromhost.max_collision_fail +
                        oct_dev->link_stats.fromhost.max_deferral_fail +
                        oct_dev->link_stats.fromhost.total_collisions +
                        oct_dev->link_stats.fromhost.fw_err_pko +
                        oct_dev->link_stats.fromhost.fw_err_link +
                        oct_dev->link_stats.fromhost.fw_err_drop +
                        oct_dev->link_stats.fromhost.fw_err_pki;

        /* firmware tx stats */
        /*per_core_stats[cvmx_get_core_num()].link_stats[mdata->from_ifidx].
         *fromhost.fw_total_sent
         */
        data[i++] = CVM_CAST64(oct_dev->link_stats.fromhost.fw_total_sent);
        /*per_core_stats[i].link_stats[port].fromwire.fw_total_fwd */
        data[i++] = CVM_CAST64(oct_dev->link_stats.fromhost.fw_total_fwd);
        /*per_core_stats[j].link_stats[i].fromhost.fw_err_pko */
        data[i++] = CVM_CAST64(oct_dev->link_stats.fromhost.fw_err_pko);
        /*per_core_stats[j].link_stats[i].fromhost.fw_err_pki */
        data[i++] = CVM_CAST64(oct_dev->link_stats.fromhost.fw_err_pki);
        /*per_core_stats[j].link_stats[i].fromhost.fw_err_link */
        data[i++] = CVM_CAST64(oct_dev->link_stats.fromhost.fw_err_link);
        /*per_core_stats[cvmx_get_core_num()].link_stats[idx].fromhost.
         *fw_err_drop
         */
        data[i++] = CVM_CAST64(oct_dev->link_stats.fromhost.fw_err_drop);

        /*per_core_stats[cvmx_get_core_num()].link_stats[idx].fromhost.fw_tso */
        data[i++] = CVM_CAST64(oct_dev->link_stats.fromhost.fw_tso);
        /*per_core_stats[cvmx_get_core_num()].link_stats[idx].fromhost.
         *fw_tso_fwd
         */
        data[i++] = CVM_CAST64(oct_dev->link_stats.fromhost.fw_tso_fwd);
        /*per_core_stats[cvmx_get_core_num()].link_stats[idx].fromhost.
         *fw_err_tso
         */
        data[i++] = CVM_CAST64(oct_dev->link_stats.fromhost.fw_err_tso);
        /*per_core_stats[cvmx_get_core_num()].link_stats[idx].fromhost.
         *fw_tx_vxlan
         */
        data[i++] = CVM_CAST64(oct_dev->link_stats.fromhost.fw_tx_vxlan);

        /* Multicast packets sent by this port */
        data[i++] = oct_dev->link_stats.fromhost.fw_total_mcast_sent;
        data[i++] = oct_dev->link_stats.fromhost.fw_total_bcast_sent;

        /* mac tx statistics */
        /*CVMX_BGXX_CMRX_TX_STAT5 */
        data[i++] = CVM_CAST64(oct_dev->link_stats.fromhost.total_pkts_sent);
        /*CVMX_BGXX_CMRX_TX_STAT4 */
        data[i++] = CVM_CAST64(oct_dev->link_stats.fromhost.total_bytes_sent);
        /*CVMX_BGXX_CMRX_TX_STAT15 */
        data[i++] = CVM_CAST64(oct_dev->link_stats.fromhost.mcast_pkts_sent);
        /*CVMX_BGXX_CMRX_TX_STAT14 */
        data[i++] = CVM_CAST64(oct_dev->link_stats.fromhost.bcast_pkts_sent);
        /*CVMX_BGXX_CMRX_TX_STAT17 */
        data[i++] = CVM_CAST64(oct_dev->link_stats.fromhost.ctl_sent);
        /*CVMX_BGXX_CMRX_TX_STAT0 */
        data[i++] = CVM_CAST64(oct_dev->link_stats.fromhost.total_collisions);
        /*CVMX_BGXX_CMRX_TX_STAT3 */
        data[i++] = CVM_CAST64(oct_dev->link_stats.fromhost.one_collision_sent);
        /*CVMX_BGXX_CMRX_TX_STAT2 */
        data[i++] =
                CVM_CAST64(oct_dev->link_stats.fromhost.multi_collision_sent);
        /*CVMX_BGXX_CMRX_TX_STAT0 */
        data[i++] = CVM_CAST64(oct_dev->link_stats.fromhost.max_collision_fail);
        /*CVMX_BGXX_CMRX_TX_STAT1 */
        data[i++] = CVM_CAST64(oct_dev->link_stats.fromhost.max_deferral_fail);
        /*CVMX_BGXX_CMRX_TX_STAT16 */
        data[i++] = CVM_CAST64(oct_dev->link_stats.fromhost.fifo_err);
        /*CVMX_BGXX_CMRX_TX_STAT6 */
        data[i++] = CVM_CAST64(oct_dev->link_stats.fromhost.runts);

        /* RX firmware stats */
        /*per_core_stats[cvmx_get_core_num()].link_stats[ifidx].fromwire.
         *fw_total_rcvd
         */
        data[i++] = CVM_CAST64(oct_dev->link_stats.fromwire.fw_total_rcvd);
        /*per_core_stats[cvmx_get_core_num()].link_stats[ifidx].fromwire.
         *fw_total_fwd
         */
        data[i++] = CVM_CAST64(oct_dev->link_stats.fromwire.fw_total_fwd);
        /* Multicast packets received on this port */
        data[i++] = oct_dev->link_stats.fromwire.fw_total_mcast;
        data[i++] = oct_dev->link_stats.fromwire.fw_total_bcast;
        /*per_core_stats[core_id].link_stats[ifidx].fromwire.jabber_err */
        data[i++] = CVM_CAST64(oct_dev->link_stats.fromwire.jabber_err);
        /*per_core_stats[core_id].link_stats[ifidx].fromwire.l2_err */
        data[i++] = CVM_CAST64(oct_dev->link_stats.fromwire.l2_err);
        /*per_core_stats[core_id].link_stats[ifidx].fromwire.frame_err */
        data[i++] = CVM_CAST64(oct_dev->link_stats.fromwire.frame_err);
        /*per_core_stats[cvmx_get_core_num()].link_stats[ifidx].fromwire.
         *fw_err_pko
         */
        data[i++] = CVM_CAST64(oct_dev->link_stats.fromwire.fw_err_pko);
        /*per_core_stats[j].link_stats[i].fromwire.fw_err_link */
        data[i++] = CVM_CAST64(oct_dev->link_stats.fromwire.fw_err_link);
        /*per_core_stats[cvmx_get_core_num()].link_stats[lro_ctx->ifidx].
         *fromwire.fw_err_drop
         */
        data[i++] = CVM_CAST64(oct_dev->link_stats.fromwire.fw_err_drop);

        /*per_core_stats[cvmx_get_core_num()].link_stats[lro_ctx->ifidx].
         *fromwire.fw_rx_vxlan
         */
        data[i++] = CVM_CAST64(oct_dev->link_stats.fromwire.fw_rx_vxlan);
        /*per_core_stats[cvmx_get_core_num()].link_stats[lro_ctx->ifidx].
         *fromwire.fw_rx_vxlan_err
         */
        data[i++] = CVM_CAST64(oct_dev->link_stats.fromwire.fw_rx_vxlan_err);

        /* LRO */
        /*per_core_stats[cvmx_get_core_num()].link_stats[ifidx].fromwire.
         *fw_lro_pkts
         */
        data[i++] = CVM_CAST64(oct_dev->link_stats.fromwire.fw_lro_pkts);
        /*per_core_stats[cvmx_get_core_num()].link_stats[ifidx].fromwire.
         *fw_lro_octs
         */
        data[i++] = CVM_CAST64(oct_dev->link_stats.fromwire.fw_lro_octs);
        /*per_core_stats[j].link_stats[i].fromwire.fw_total_lro */
        data[i++] = CVM_CAST64(oct_dev->link_stats.fromwire.fw_total_lro);
        /*per_core_stats[j].link_stats[i].fromwire.fw_lro_aborts */
        data[i++] = CVM_CAST64(oct_dev->link_stats.fromwire.fw_lro_aborts);
        /*per_core_stats[cvmx_get_core_num()].link_stats[ifidx].fromwire.
         *fw_lro_aborts_port
         */
        data[i++] = CVM_CAST64(oct_dev->link_stats.fromwire.fw_lro_aborts_port);
        /*per_core_stats[cvmx_get_core_num()].link_stats[ifidx].fromwire.
         *fw_lro_aborts_seq
         */
        data[i++] = CVM_CAST64(oct_dev->link_stats.fromwire.fw_lro_aborts_seq);
        /*per_core_stats[cvmx_get_core_num()].link_stats[ifidx].fromwire.
         *fw_lro_aborts_tsval
         */
        data[i++] =
                CVM_CAST64(oct_dev->link_stats.fromwire.fw_lro_aborts_tsval);
        /*per_core_stats[cvmx_get_core_num()].link_stats[ifidx].fromwire.
         *fw_lro_aborts_timer
         */
        /* intrmod: packet forward rate */
        data[i++] =
                CVM_CAST64(oct_dev->link_stats.fromwire.fw_lro_aborts_timer);
        /*per_core_stats[j].link_stats[i].fromwire.fw_lro_aborts */
        data[i++] = CVM_CAST64(oct_dev->link_stats.fromwire.fwd_rate);

        /* mac: link-level stats */
        /*CVMX_BGXX_CMRX_RX_STAT0 */
        data[i++] = CVM_CAST64(oct_dev->link_stats.fromwire.total_rcvd);
        /*CVMX_BGXX_CMRX_RX_STAT1 */
        data[i++] = CVM_CAST64(oct_dev->link_stats.fromwire.bytes_rcvd);
        /*CVMX_PKI_STATX_STAT5 */
        data[i++] = CVM_CAST64(oct_dev->link_stats.fromwire.total_bcst);
        /*CVMX_PKI_STATX_STAT5 */
        data[i++] = CVM_CAST64(oct_dev->link_stats.fromwire.total_mcst);
        /*wqe->word2.err_code or wqe->word2.err_level */
        data[i++] = CVM_CAST64(oct_dev->link_stats.fromwire.runts);
        /*CVMX_BGXX_CMRX_RX_STAT2 */
        data[i++] = CVM_CAST64(oct_dev->link_stats.fromwire.ctl_rcvd);
        /*CVMX_BGXX_CMRX_RX_STAT6 */
        data[i++] = CVM_CAST64(oct_dev->link_stats.fromwire.fifo_err);
        /*CVMX_BGXX_CMRX_RX_STAT4 */
        data[i++] = CVM_CAST64(oct_dev->link_stats.fromwire.dmac_drop);
        /*wqe->word2.err_code or wqe->word2.err_level */
        data[i++] = CVM_CAST64(oct_dev->link_stats.fromwire.fcs_err);
        /*lio->link_changes*/
        data[i++] = CVM_CAST64(lio->link_changes);

        for (j = 0; j < MAX_OCTEON_INSTR_QUEUES(oct_dev); j++) {
                if (!(oct_dev->io_qmask.iq & BIT_ULL(j)))
                        continue;
                /*packets to network port*/
                /*# of packets tx to network */
                data[i++] = CVM_CAST64(oct_dev->instr_queue[j]->stats.tx_done);
                /*# of bytes tx to network */
                data[i++] =
                        CVM_CAST64(oct_dev->instr_queue[j]->stats.tx_tot_bytes);
                /*# of packets dropped */
                data[i++] =
                        CVM_CAST64(oct_dev->instr_queue[j]->stats.tx_dropped);
                /*# of tx fails due to queue full */
                data[i++] =
                        CVM_CAST64(oct_dev->instr_queue[j]->stats.tx_iq_busy);
                /*XXX gather entries sent */
                data[i++] =
                        CVM_CAST64(oct_dev->instr_queue[j]->stats.sgentry_sent);

                /*instruction to firmware: data and control */
                /*# of instructions to the queue */
                data[i++] =
                        CVM_CAST64(oct_dev->instr_queue[j]->stats.instr_posted);
                /*# of instructions processed */
                data[i++] = CVM_CAST64(
                                oct_dev->instr_queue[j]->stats.instr_processed);
                /*# of instructions could not be processed */
                data[i++] = CVM_CAST64(
                                oct_dev->instr_queue[j]->stats.instr_dropped);
                /*bytes sent through the queue */
                data[i++] =
                        CVM_CAST64(oct_dev->instr_queue[j]->stats.bytes_sent);

                /*tso request*/
                data[i++] = CVM_CAST64(oct_dev->instr_queue[j]->stats.tx_gso);
                /*vxlan request*/
                data[i++] = CVM_CAST64(oct_dev->instr_queue[j]->stats.tx_vxlan);
                /*txq restart*/
                data[i++] =
                        CVM_CAST64(oct_dev->instr_queue[j]->stats.tx_restart);
        }

        /* RX */
        for (j = 0; j < MAX_OCTEON_OUTPUT_QUEUES(oct_dev); j++) {
                if (!(oct_dev->io_qmask.oq & BIT_ULL(j)))
                        continue;

                /*packets send to TCP/IP network stack */
                /*# of packets to network stack */
                data[i++] =
                        CVM_CAST64(oct_dev->droq[j]->stats.rx_pkts_received);
                /*# of bytes to network stack */
                data[i++] =
                        CVM_CAST64(oct_dev->droq[j]->stats.rx_bytes_received);
                /*# of packets dropped */
                data[i++] = CVM_CAST64(oct_dev->droq[j]->stats.dropped_nomem +
                                       oct_dev->droq[j]->stats.dropped_toomany +
                                       oct_dev->droq[j]->stats.rx_dropped);
                data[i++] =
                        CVM_CAST64(oct_dev->droq[j]->stats.dropped_nomem);
                data[i++] =
                        CVM_CAST64(oct_dev->droq[j]->stats.dropped_toomany);
                data[i++] =
                        CVM_CAST64(oct_dev->droq[j]->stats.rx_dropped);

                /*control and data path*/
                data[i++] =
                        CVM_CAST64(oct_dev->droq[j]->stats.pkts_received);
                data[i++] =
                        CVM_CAST64(oct_dev->droq[j]->stats.bytes_received);
                data[i++] =
                        CVM_CAST64(oct_dev->droq[j]->stats.dropped_nodispatch);

                data[i++] =
                        CVM_CAST64(oct_dev->droq[j]->stats.rx_vxlan);
                data[i++] =
                        CVM_CAST64(oct_dev->droq[j]->stats.rx_alloc_failure);
        }
}

static void lio_vf_get_ethtool_stats(struct net_device *netdev,
                                     struct ethtool_stats *stats
                                     __attribute__((unused)),
                                     u64 *data)
{
        struct rtnl_link_stats64 lstats;
        struct lio *lio = GET_LIO(netdev);
        struct octeon_device *oct_dev = lio->oct_dev;
        int i = 0, j, vj;

        if (ifstate_check(lio, LIO_IFSTATE_RESETTING))
                return;

        netdev->netdev_ops->ndo_get_stats64(netdev, &lstats);
        /* sum of oct->droq[oq_no]->stats->rx_pkts_received */
        data[i++] = lstats.rx_packets;
        /* sum of oct->instr_queue[iq_no]->stats.tx_done */
        data[i++] = lstats.tx_packets;
        /* sum of oct->droq[oq_no]->stats->rx_bytes_received */
        data[i++] = lstats.rx_bytes;
        /* sum of oct->instr_queue[iq_no]->stats.tx_tot_bytes */
        data[i++] = lstats.tx_bytes;
        data[i++] = lstats.rx_errors;
        data[i++] = lstats.tx_errors;
         /* sum of oct->droq[oq_no]->stats->rx_dropped +
          * oct->droq[oq_no]->stats->dropped_nodispatch +
          * oct->droq[oq_no]->stats->dropped_toomany +
          * oct->droq[oq_no]->stats->dropped_nomem
          */
        data[i++] = lstats.rx_dropped;
        /* sum of oct->instr_queue[iq_no]->stats.tx_dropped */
        data[i++] = lstats.tx_dropped +
                oct_dev->link_stats.fromhost.fw_err_drop;

        data[i++] = oct_dev->link_stats.fromwire.fw_total_mcast;
        data[i++] = oct_dev->link_stats.fromhost.fw_total_mcast_sent;
        data[i++] = oct_dev->link_stats.fromwire.fw_total_bcast;
        data[i++] = oct_dev->link_stats.fromhost.fw_total_bcast_sent;

        /* lio->link_changes */
        data[i++] = CVM_CAST64(lio->link_changes);

        for (vj = 0; vj < oct_dev->num_iqs; vj++) {
                j = lio->linfo.txpciq[vj].s.q_no;

                /* packets to network port */
                /* # of packets tx to network */
                data[i++] = CVM_CAST64(oct_dev->instr_queue[j]->stats.tx_done);
                 /* # of bytes tx to network */
                data[i++] = CVM_CAST64(
                                oct_dev->instr_queue[j]->stats.tx_tot_bytes);
                /* # of packets dropped */
                data[i++] = CVM_CAST64(
                                oct_dev->instr_queue[j]->stats.tx_dropped);
                /* # of tx fails due to queue full */
                data[i++] = CVM_CAST64(
                                oct_dev->instr_queue[j]->stats.tx_iq_busy);
                /* XXX gather entries sent */
                data[i++] = CVM_CAST64(
                                oct_dev->instr_queue[j]->stats.sgentry_sent);

                /* instruction to firmware: data and control */
                /* # of instructions to the queue */
                data[i++] = CVM_CAST64(
                                oct_dev->instr_queue[j]->stats.instr_posted);
                /* # of instructions processed */
                data[i++] =
                    CVM_CAST64(oct_dev->instr_queue[j]->stats.instr_processed);
                /* # of instructions could not be processed */
                data[i++] =
                    CVM_CAST64(oct_dev->instr_queue[j]->stats.instr_dropped);
                /* bytes sent through the queue */
                data[i++] = CVM_CAST64(
                                oct_dev->instr_queue[j]->stats.bytes_sent);
                /* tso request */
                data[i++] = CVM_CAST64(oct_dev->instr_queue[j]->stats.tx_gso);
                /* vxlan request */
                data[i++] = CVM_CAST64(oct_dev->instr_queue[j]->stats.tx_vxlan);
                /* txq restart */
                data[i++] = CVM_CAST64(
                                oct_dev->instr_queue[j]->stats.tx_restart);
        }

        /* RX */
        for (vj = 0; vj < oct_dev->num_oqs; vj++) {
                j = lio->linfo.rxpciq[vj].s.q_no;

                /* packets send to TCP/IP network stack */
                /* # of packets to network stack */
                data[i++] = CVM_CAST64(
                                oct_dev->droq[j]->stats.rx_pkts_received);
                /* # of bytes to network stack */
                data[i++] = CVM_CAST64(
                                oct_dev->droq[j]->stats.rx_bytes_received);
                data[i++] = CVM_CAST64(oct_dev->droq[j]->stats.dropped_nomem +
                                       oct_dev->droq[j]->stats.dropped_toomany +
                                       oct_dev->droq[j]->stats.rx_dropped);
                data[i++] = CVM_CAST64(oct_dev->droq[j]->stats.dropped_nomem);
                data[i++] = CVM_CAST64(oct_dev->droq[j]->stats.dropped_toomany);
                data[i++] = CVM_CAST64(oct_dev->droq[j]->stats.rx_dropped);

                /* control and data path */
                data[i++] = CVM_CAST64(oct_dev->droq[j]->stats.pkts_received);
                data[i++] = CVM_CAST64(oct_dev->droq[j]->stats.bytes_received);
                data[i++] =
                        CVM_CAST64(oct_dev->droq[j]->stats.dropped_nodispatch);

                data[i++] = CVM_CAST64(oct_dev->droq[j]->stats.rx_vxlan);
                data[i++] =
                    CVM_CAST64(oct_dev->droq[j]->stats.rx_alloc_failure);
        }
}

static void lio_get_priv_flags_strings(struct lio *lio, u8 *data)
{
        struct octeon_device *oct_dev = lio->oct_dev;
        int i;

        switch (oct_dev->chip_id) {
        case OCTEON_CN23XX_PF_VID:
        case OCTEON_CN23XX_VF_VID:
                for (i = 0; i < ARRAY_SIZE(oct_priv_flags_strings); i++) {
                        sprintf(data, "%s", oct_priv_flags_strings[i]);
                        data += ETH_GSTRING_LEN;
                }
                break;
        case OCTEON_CN68XX:
        case OCTEON_CN66XX:
                break;
        default:
                netif_info(lio, drv, lio->netdev, "Unknown Chip !!\n");
                break;
        }
}

static void lio_get_strings(struct net_device *netdev, u32 stringset, u8 *data)
{
        struct lio *lio = GET_LIO(netdev);
        struct octeon_device *oct_dev = lio->oct_dev;
        int num_iq_stats, num_oq_stats, i, j;
        int num_stats;

        switch (stringset) {
        case ETH_SS_STATS:
                num_stats = ARRAY_SIZE(oct_stats_strings);
                for (j = 0; j < num_stats; j++) {
                        sprintf(data, "%s", oct_stats_strings[j]);
                        data += ETH_GSTRING_LEN;
                }

                num_iq_stats = ARRAY_SIZE(oct_iq_stats_strings);
                for (i = 0; i < MAX_OCTEON_INSTR_QUEUES(oct_dev); i++) {
                        if (!(oct_dev->io_qmask.iq & BIT_ULL(i)))
                                continue;
                        for (j = 0; j < num_iq_stats; j++) {
                                sprintf(data, "tx-%d-%s", i,
                                        oct_iq_stats_strings[j]);
                                data += ETH_GSTRING_LEN;
                        }
                }

                num_oq_stats = ARRAY_SIZE(oct_droq_stats_strings);
                for (i = 0; i < MAX_OCTEON_OUTPUT_QUEUES(oct_dev); i++) {
                        if (!(oct_dev->io_qmask.oq & BIT_ULL(i)))
                                continue;
                        for (j = 0; j < num_oq_stats; j++) {
                                sprintf(data, "rx-%d-%s", i,
                                        oct_droq_stats_strings[j]);
                                data += ETH_GSTRING_LEN;
                        }
                }
                break;

        case ETH_SS_PRIV_FLAGS:
                lio_get_priv_flags_strings(lio, data);
                break;
        default:
                netif_info(lio, drv, lio->netdev, "Unknown Stringset !!\n");
                break;
        }
}

static void lio_vf_get_strings(struct net_device *netdev, u32 stringset,
                               u8 *data)
{
        int num_iq_stats, num_oq_stats, i, j;
        struct lio *lio = GET_LIO(netdev);
        struct octeon_device *oct_dev = lio->oct_dev;
        int num_stats;

        switch (stringset) {
        case ETH_SS_STATS:
                num_stats = ARRAY_SIZE(oct_vf_stats_strings);
                for (j = 0; j < num_stats; j++) {
                        sprintf(data, "%s", oct_vf_stats_strings[j]);
                        data += ETH_GSTRING_LEN;
                }

                num_iq_stats = ARRAY_SIZE(oct_iq_stats_strings);
                for (i = 0; i < MAX_OCTEON_INSTR_QUEUES(oct_dev); i++) {
                        if (!(oct_dev->io_qmask.iq & BIT_ULL(i)))
                                continue;
                        for (j = 0; j < num_iq_stats; j++) {
                                sprintf(data, "tx-%d-%s", i,
                                        oct_iq_stats_strings[j]);
                                data += ETH_GSTRING_LEN;
                        }
                }

                num_oq_stats = ARRAY_SIZE(oct_droq_stats_strings);
                for (i = 0; i < MAX_OCTEON_OUTPUT_QUEUES(oct_dev); i++) {
                        if (!(oct_dev->io_qmask.oq & BIT_ULL(i)))
                                continue;
                        for (j = 0; j < num_oq_stats; j++) {
                                sprintf(data, "rx-%d-%s", i,
                                        oct_droq_stats_strings[j]);
                                data += ETH_GSTRING_LEN;
                        }
                }
                break;

        case ETH_SS_PRIV_FLAGS:
                lio_get_priv_flags_strings(lio, data);
                break;
        default:
                netif_info(lio, drv, lio->netdev, "Unknown Stringset !!\n");
                break;
        }
}

static int lio_get_priv_flags_ss_count(struct lio *lio)
{
        struct octeon_device *oct_dev = lio->oct_dev;

        switch (oct_dev->chip_id) {
        case OCTEON_CN23XX_PF_VID:
        case OCTEON_CN23XX_VF_VID:
                return ARRAY_SIZE(oct_priv_flags_strings);
        case OCTEON_CN68XX:
        case OCTEON_CN66XX:
                return -EOPNOTSUPP;
        default:
                netif_info(lio, drv, lio->netdev, "Unknown Chip !!\n");
                return -EOPNOTSUPP;
        }
}

static int lio_get_sset_count(struct net_device *netdev, int sset)
{
        struct lio *lio = GET_LIO(netdev);
        struct octeon_device *oct_dev = lio->oct_dev;

        switch (sset) {
        case ETH_SS_STATS:
                return (ARRAY_SIZE(oct_stats_strings) +
                        ARRAY_SIZE(oct_iq_stats_strings) * oct_dev->num_iqs +
                        ARRAY_SIZE(oct_droq_stats_strings) * oct_dev->num_oqs);
        case ETH_SS_PRIV_FLAGS:
                return lio_get_priv_flags_ss_count(lio);
        default:
                return -EOPNOTSUPP;
        }
}

static int lio_vf_get_sset_count(struct net_device *netdev, int sset)
{
        struct lio *lio = GET_LIO(netdev);
        struct octeon_device *oct_dev = lio->oct_dev;

        switch (sset) {
        case ETH_SS_STATS:
                return (ARRAY_SIZE(oct_vf_stats_strings) +
                        ARRAY_SIZE(oct_iq_stats_strings) * oct_dev->num_iqs +
                        ARRAY_SIZE(oct_droq_stats_strings) * oct_dev->num_oqs);
        case ETH_SS_PRIV_FLAGS:
                return lio_get_priv_flags_ss_count(lio);
        default:
                return -EOPNOTSUPP;
        }
}

/*  get interrupt moderation parameters */
static int octnet_get_intrmod_cfg(struct lio *lio,
                                  struct oct_intrmod_cfg *intr_cfg)
{
        struct octeon_soft_command *sc;
        struct oct_intrmod_resp *resp;
        int retval;
        struct octeon_device *oct_dev = lio->oct_dev;

        /* Alloc soft command */
        sc = (struct octeon_soft_command *)
                octeon_alloc_soft_command(oct_dev,
                                          0,
                                          sizeof(struct oct_intrmod_resp), 0);

        if (!sc)
                return -ENOMEM;

        resp = (struct oct_intrmod_resp *)sc->virtrptr;
        memset(resp, 0, sizeof(struct oct_intrmod_resp));

        sc->iq_no = lio->linfo.txpciq[0].s.q_no;

        octeon_prepare_soft_command(oct_dev, sc, OPCODE_NIC,
                                    OPCODE_NIC_INTRMOD_PARAMS, 0, 0, 0);

        init_completion(&sc->complete);
        sc->sc_status = OCTEON_REQUEST_PENDING;

        retval = octeon_send_soft_command(oct_dev, sc);
        if (retval == IQ_SEND_FAILED) {
                octeon_free_soft_command(oct_dev, sc);
                return -EINVAL;
        }

        /* Sleep on a wait queue till the cond flag indicates that the
         * response arrived or timed-out.
         */
        retval = wait_for_sc_completion_timeout(oct_dev, sc, 0);
        if (retval)
                return -ENODEV;

        if (resp->status) {
                dev_err(&oct_dev->pci_dev->dev,
                        "Get interrupt moderation parameters failed\n");
                WRITE_ONCE(sc->caller_is_done, true);
                return -ENODEV;
        }

        octeon_swap_8B_data((u64 *)&resp->intrmod,
                            (sizeof(struct oct_intrmod_cfg)) / 8);
        memcpy(intr_cfg, &resp->intrmod, sizeof(struct oct_intrmod_cfg));
        WRITE_ONCE(sc->caller_is_done, true);

        return 0;
}

/*  Configure interrupt moderation parameters */
static int octnet_set_intrmod_cfg(struct lio *lio,
                                  struct oct_intrmod_cfg *intr_cfg)
{
        struct octeon_soft_command *sc;
        struct oct_intrmod_cfg *cfg;
        int retval;
        struct octeon_device *oct_dev = lio->oct_dev;

        /* Alloc soft command */
        sc = (struct octeon_soft_command *)
                octeon_alloc_soft_command(oct_dev,
                                          sizeof(struct oct_intrmod_cfg),
                                          16, 0);

        if (!sc)
                return -ENOMEM;

        cfg = (struct oct_intrmod_cfg *)sc->virtdptr;

        memcpy(cfg, intr_cfg, sizeof(struct oct_intrmod_cfg));
        octeon_swap_8B_data((u64 *)cfg, (sizeof(struct oct_intrmod_cfg)) / 8);

        sc->iq_no = lio->linfo.txpciq[0].s.q_no;

        octeon_prepare_soft_command(oct_dev, sc, OPCODE_NIC,
                                    OPCODE_NIC_INTRMOD_CFG, 0, 0, 0);

        init_completion(&sc->complete);
        sc->sc_status = OCTEON_REQUEST_PENDING;

        retval = octeon_send_soft_command(oct_dev, sc);
        if (retval == IQ_SEND_FAILED) {
                octeon_free_soft_command(oct_dev, sc);
                return -EINVAL;
        }

        /* Sleep on a wait queue till the cond flag indicates that the
         * response arrived or timed-out.
         */
        retval = wait_for_sc_completion_timeout(oct_dev, sc, 0);
        if (retval)
                return retval;

        retval = sc->sc_status;
        if (retval == 0) {
                dev_info(&oct_dev->pci_dev->dev,
                         "Rx-Adaptive Interrupt moderation %s\n",
                         (intr_cfg->rx_enable) ?
                         "enabled" : "disabled");
                WRITE_ONCE(sc->caller_is_done, true);
                return 0;
        }

        dev_err(&oct_dev->pci_dev->dev,
                "intrmod config failed. Status: %x\n", retval);
        WRITE_ONCE(sc->caller_is_done, true);
        return -ENODEV;
}

static int lio_get_intr_coalesce(struct net_device *netdev,
                                 struct ethtool_coalesce *intr_coal,
                                 struct kernel_ethtool_coalesce *kernel_coal,
                                 struct netlink_ext_ack *extack)
{
        struct lio *lio = GET_LIO(netdev);
        struct octeon_device *oct = lio->oct_dev;
        struct octeon_instr_queue *iq;
        struct oct_intrmod_cfg intrmod_cfg;

        if (octnet_get_intrmod_cfg(lio, &intrmod_cfg))
                return -ENODEV;

        switch (oct->chip_id) {
        case OCTEON_CN23XX_PF_VID:
        case OCTEON_CN23XX_VF_VID: {
                if (!intrmod_cfg.rx_enable) {
                        intr_coal->rx_coalesce_usecs = oct->rx_coalesce_usecs;
                        intr_coal->rx_max_coalesced_frames =
                                oct->rx_max_coalesced_frames;
                }
                if (!intrmod_cfg.tx_enable)
                        intr_coal->tx_max_coalesced_frames =
                                oct->tx_max_coalesced_frames;
                break;
        }
        case OCTEON_CN68XX:
        case OCTEON_CN66XX: {
                struct octeon_cn6xxx *cn6xxx =
                        (struct octeon_cn6xxx *)oct->chip;

                if (!intrmod_cfg.rx_enable) {
                        intr_coal->rx_coalesce_usecs =
                                CFG_GET_OQ_INTR_TIME(cn6xxx->conf);
                        intr_coal->rx_max_coalesced_frames =
                                CFG_GET_OQ_INTR_PKT(cn6xxx->conf);
                }
                iq = oct->instr_queue[lio->linfo.txpciq[0].s.q_no];
                intr_coal->tx_max_coalesced_frames = iq->fill_threshold;
                break;
        }
        default:
                netif_info(lio, drv, lio->netdev, "Unknown Chip !!\n");
                return -EINVAL;
        }
        if (intrmod_cfg.rx_enable) {
                intr_coal->use_adaptive_rx_coalesce =
                        intrmod_cfg.rx_enable;
                intr_coal->rate_sample_interval =
                        intrmod_cfg.check_intrvl;
                intr_coal->pkt_rate_high =
                        intrmod_cfg.maxpkt_ratethr;
                intr_coal->pkt_rate_low =
                        intrmod_cfg.minpkt_ratethr;
                intr_coal->rx_max_coalesced_frames_high =
                        intrmod_cfg.rx_maxcnt_trigger;
                intr_coal->rx_coalesce_usecs_high =
                        intrmod_cfg.rx_maxtmr_trigger;
                intr_coal->rx_coalesce_usecs_low =
                        intrmod_cfg.rx_mintmr_trigger;
                intr_coal->rx_max_coalesced_frames_low =
                        intrmod_cfg.rx_mincnt_trigger;
        }
        if ((OCTEON_CN23XX_PF(oct) || OCTEON_CN23XX_VF(oct)) &&
            (intrmod_cfg.tx_enable)) {
                intr_coal->use_adaptive_tx_coalesce =
                        intrmod_cfg.tx_enable;
                intr_coal->tx_max_coalesced_frames_high =
                        intrmod_cfg.tx_maxcnt_trigger;
                intr_coal->tx_max_coalesced_frames_low =
                        intrmod_cfg.tx_mincnt_trigger;
        }
        return 0;
}

/* Enable/Disable auto interrupt Moderation */
static int oct_cfg_adaptive_intr(struct lio *lio,
                                 struct oct_intrmod_cfg *intrmod_cfg,
                                 struct ethtool_coalesce *intr_coal)
{
        int ret = 0;

        if (intrmod_cfg->rx_enable || intrmod_cfg->tx_enable) {
                intrmod_cfg->check_intrvl = intr_coal->rate_sample_interval;
                intrmod_cfg->maxpkt_ratethr = intr_coal->pkt_rate_high;
                intrmod_cfg->minpkt_ratethr = intr_coal->pkt_rate_low;
        }
        if (intrmod_cfg->rx_enable) {
                intrmod_cfg->rx_maxcnt_trigger =
                        intr_coal->rx_max_coalesced_frames_high;
                intrmod_cfg->rx_maxtmr_trigger =
                        intr_coal->rx_coalesce_usecs_high;
                intrmod_cfg->rx_mintmr_trigger =
                        intr_coal->rx_coalesce_usecs_low;
                intrmod_cfg->rx_mincnt_trigger =
                        intr_coal->rx_max_coalesced_frames_low;
        }
        if (intrmod_cfg->tx_enable) {
                intrmod_cfg->tx_maxcnt_trigger =
                        intr_coal->tx_max_coalesced_frames_high;
                intrmod_cfg->tx_mincnt_trigger =
                        intr_coal->tx_max_coalesced_frames_low;
        }

        ret = octnet_set_intrmod_cfg(lio, intrmod_cfg);

        return ret;
}

static int
oct_cfg_rx_intrcnt(struct lio *lio,
                   struct oct_intrmod_cfg *intrmod,
                   struct ethtool_coalesce *intr_coal)
{
        struct octeon_device *oct = lio->oct_dev;
        u32 rx_max_coalesced_frames;

        /* Config Cnt based interrupt values */
        switch (oct->chip_id) {
        case OCTEON_CN68XX:
        case OCTEON_CN66XX: {
                struct octeon_cn6xxx *cn6xxx =
                        (struct octeon_cn6xxx *)oct->chip;

                if (!intr_coal->rx_max_coalesced_frames)
                        rx_max_coalesced_frames = CN6XXX_OQ_INTR_PKT;
                else
                        rx_max_coalesced_frames =
                                intr_coal->rx_max_coalesced_frames;
                octeon_write_csr(oct, CN6XXX_SLI_OQ_INT_LEVEL_PKTS,
                                 rx_max_coalesced_frames);
                CFG_SET_OQ_INTR_PKT(cn6xxx->conf, rx_max_coalesced_frames);
                break;
        }
        case OCTEON_CN23XX_PF_VID: {
                int q_no;

                if (!intr_coal->rx_max_coalesced_frames)
                        rx_max_coalesced_frames = intrmod->rx_frames;
                else
                        rx_max_coalesced_frames =
                            intr_coal->rx_max_coalesced_frames;
                for (q_no = 0; q_no < oct->num_oqs; q_no++) {
                        q_no += oct->sriov_info.pf_srn;
                        octeon_write_csr64(
                            oct, CN23XX_SLI_OQ_PKT_INT_LEVELS(q_no),
                            (octeon_read_csr64(
                                 oct, CN23XX_SLI_OQ_PKT_INT_LEVELS(q_no)) &
                             (0x3fffff00000000UL)) |
                                (rx_max_coalesced_frames - 1));
                        /*consider setting resend bit*/
                }
                intrmod->rx_frames = rx_max_coalesced_frames;
                oct->rx_max_coalesced_frames = rx_max_coalesced_frames;
                break;
        }
        case OCTEON_CN23XX_VF_VID: {
                int q_no;

                if (!intr_coal->rx_max_coalesced_frames)
                        rx_max_coalesced_frames = intrmod->rx_frames;
                else
                        rx_max_coalesced_frames =
                            intr_coal->rx_max_coalesced_frames;
                for (q_no = 0; q_no < oct->num_oqs; q_no++) {
                        octeon_write_csr64(
                            oct, CN23XX_VF_SLI_OQ_PKT_INT_LEVELS(q_no),
                            (octeon_read_csr64(
                                 oct, CN23XX_VF_SLI_OQ_PKT_INT_LEVELS(q_no)) &
                             (0x3fffff00000000UL)) |
                                (rx_max_coalesced_frames - 1));
                        /*consider writing to resend bit here*/
                }
                intrmod->rx_frames = rx_max_coalesced_frames;
                oct->rx_max_coalesced_frames = rx_max_coalesced_frames;
                break;
        }
        default:
                return -EINVAL;
        }
        return 0;
}

static int oct_cfg_rx_intrtime(struct lio *lio,
                               struct oct_intrmod_cfg *intrmod,
                               struct ethtool_coalesce *intr_coal)
{
        struct octeon_device *oct = lio->oct_dev;
        u32 time_threshold, rx_coalesce_usecs;

        /* Config Time based interrupt values */
        switch (oct->chip_id) {
        case OCTEON_CN68XX:
        case OCTEON_CN66XX: {
                struct octeon_cn6xxx *cn6xxx =
                        (struct octeon_cn6xxx *)oct->chip;
                if (!intr_coal->rx_coalesce_usecs)
                        rx_coalesce_usecs = CN6XXX_OQ_INTR_TIME;
                else
                        rx_coalesce_usecs = intr_coal->rx_coalesce_usecs;

                time_threshold = lio_cn6xxx_get_oq_ticks(oct,
                                                         rx_coalesce_usecs);
                octeon_write_csr(oct,
                                 CN6XXX_SLI_OQ_INT_LEVEL_TIME,
                                 time_threshold);

                CFG_SET_OQ_INTR_TIME(cn6xxx->conf, rx_coalesce_usecs);
                break;
        }
        case OCTEON_CN23XX_PF_VID: {
                u64 time_threshold;
                int q_no;

                if (!intr_coal->rx_coalesce_usecs)
                        rx_coalesce_usecs = intrmod->rx_usecs;
                else
                        rx_coalesce_usecs = intr_coal->rx_coalesce_usecs;
                time_threshold =
                    cn23xx_pf_get_oq_ticks(oct, (u32)rx_coalesce_usecs);
                for (q_no = 0; q_no < oct->num_oqs; q_no++) {
                        q_no += oct->sriov_info.pf_srn;
                        octeon_write_csr64(oct,
                                           CN23XX_SLI_OQ_PKT_INT_LEVELS(q_no),
                                           (intrmod->rx_frames |
                                            ((u64)time_threshold << 32)));
                        /*consider writing to resend bit here*/
                }
                intrmod->rx_usecs = rx_coalesce_usecs;
                oct->rx_coalesce_usecs = rx_coalesce_usecs;
                break;
        }
        case OCTEON_CN23XX_VF_VID: {
                u64 time_threshold;
                int q_no;

                if (!intr_coal->rx_coalesce_usecs)
                        rx_coalesce_usecs = intrmod->rx_usecs;
                else
                        rx_coalesce_usecs = intr_coal->rx_coalesce_usecs;

                time_threshold =
                    cn23xx_vf_get_oq_ticks(oct, (u32)rx_coalesce_usecs);
                for (q_no = 0; q_no < oct->num_oqs; q_no++) {
                        octeon_write_csr64(
                                oct, CN23XX_VF_SLI_OQ_PKT_INT_LEVELS(q_no),
                                (intrmod->rx_frames |
                                 ((u64)time_threshold << 32)));
                        /*consider setting resend bit*/
                }
                intrmod->rx_usecs = rx_coalesce_usecs;
                oct->rx_coalesce_usecs = rx_coalesce_usecs;
                break;
        }
        default:
                return -EINVAL;
        }

        return 0;
}

static int
oct_cfg_tx_intrcnt(struct lio *lio,
                   struct oct_intrmod_cfg *intrmod,
                   struct ethtool_coalesce *intr_coal)
{
        struct octeon_device *oct = lio->oct_dev;
        u32 iq_intr_pkt;
        void __iomem *inst_cnt_reg;
        u64 val;

        /* Config Cnt based interrupt values */
        switch (oct->chip_id) {
        case OCTEON_CN68XX:
        case OCTEON_CN66XX:
                break;
        case OCTEON_CN23XX_VF_VID:
        case OCTEON_CN23XX_PF_VID: {
                int q_no;

                if (!intr_coal->tx_max_coalesced_frames)
                        iq_intr_pkt = CN23XX_DEF_IQ_INTR_THRESHOLD &
                                      CN23XX_PKT_IN_DONE_WMARK_MASK;
                else
                        iq_intr_pkt = intr_coal->tx_max_coalesced_frames &
                                      CN23XX_PKT_IN_DONE_WMARK_MASK;
                for (q_no = 0; q_no < oct->num_iqs; q_no++) {
                        inst_cnt_reg = (oct->instr_queue[q_no])->inst_cnt_reg;
                        val = readq(inst_cnt_reg);
                        /*clear wmark and count.dont want to write count back*/
                        val = (val & 0xFFFF000000000000ULL) |
                              ((u64)(iq_intr_pkt - 1)
                               << CN23XX_PKT_IN_DONE_WMARK_BIT_POS);
                        writeq(val, inst_cnt_reg);
                        /*consider setting resend bit*/
                }
                intrmod->tx_frames = iq_intr_pkt;
                oct->tx_max_coalesced_frames = iq_intr_pkt;
                break;
        }
        default:
                return -EINVAL;
        }
        return 0;
}

static int lio_set_intr_coalesce(struct net_device *netdev,
                                 struct ethtool_coalesce *intr_coal,
                                 struct kernel_ethtool_coalesce *kernel_coal,
                                 struct netlink_ext_ack *extack)
{
        struct lio *lio = GET_LIO(netdev);
        int ret;
        struct octeon_device *oct = lio->oct_dev;
        struct oct_intrmod_cfg intrmod = {0};
        u32 j, q_no;
        int db_max, db_min;

        switch (oct->chip_id) {
        case OCTEON_CN68XX:
        case OCTEON_CN66XX:
                db_min = CN6XXX_DB_MIN;
                db_max = CN6XXX_DB_MAX;
                if ((intr_coal->tx_max_coalesced_frames >= db_min) &&
                    (intr_coal->tx_max_coalesced_frames <= db_max)) {
                        for (j = 0; j < lio->linfo.num_txpciq; j++) {
                                q_no = lio->linfo.txpciq[j].s.q_no;
                                oct->instr_queue[q_no]->fill_threshold =
                                        intr_coal->tx_max_coalesced_frames;
                        }
                } else {
                        dev_err(&oct->pci_dev->dev,
                                "LIQUIDIO: Invalid tx-frames:%d. Range is min:%d max:%d\n",
                                intr_coal->tx_max_coalesced_frames,
                                db_min, db_max);
                        return -EINVAL;
                }
                break;
        case OCTEON_CN23XX_PF_VID:
        case OCTEON_CN23XX_VF_VID:
                break;
        default:
                return -EINVAL;
        }

        intrmod.rx_enable = intr_coal->use_adaptive_rx_coalesce ? 1 : 0;
        intrmod.tx_enable = intr_coal->use_adaptive_tx_coalesce ? 1 : 0;
        intrmod.rx_frames = CFG_GET_OQ_INTR_PKT(octeon_get_conf(oct));
        intrmod.rx_usecs = CFG_GET_OQ_INTR_TIME(octeon_get_conf(oct));
        intrmod.tx_frames = CFG_GET_IQ_INTR_PKT(octeon_get_conf(oct));

        ret = oct_cfg_adaptive_intr(lio, &intrmod, intr_coal);

        if (!intr_coal->use_adaptive_rx_coalesce) {
                ret = oct_cfg_rx_intrtime(lio, &intrmod, intr_coal);
                if (ret)
                        goto ret_intrmod;

                ret = oct_cfg_rx_intrcnt(lio, &intrmod, intr_coal);
                if (ret)
                        goto ret_intrmod;
        } else {
                oct->rx_coalesce_usecs =
                        CFG_GET_OQ_INTR_TIME(octeon_get_conf(oct));
                oct->rx_max_coalesced_frames =
                        CFG_GET_OQ_INTR_PKT(octeon_get_conf(oct));
        }

        if (!intr_coal->use_adaptive_tx_coalesce) {
                ret = oct_cfg_tx_intrcnt(lio, &intrmod, intr_coal);
                if (ret)
                        goto ret_intrmod;
        } else {
                oct->tx_max_coalesced_frames =
                        CFG_GET_IQ_INTR_PKT(octeon_get_conf(oct));
        }

        return 0;
ret_intrmod:
        return ret;
}

#ifdef PTP_HARDWARE_TIMESTAMPING
static int lio_get_ts_info(struct net_device *netdev,
                           struct kernel_ethtool_ts_info *info)
{
        struct lio *lio = GET_LIO(netdev);

        info->so_timestamping =
                SOF_TIMESTAMPING_TX_HARDWARE |
                SOF_TIMESTAMPING_RX_HARDWARE |
                SOF_TIMESTAMPING_RAW_HARDWARE |
                SOF_TIMESTAMPING_TX_SOFTWARE;

        if (lio->ptp_clock)
                info->phc_index = ptp_clock_index(lio->ptp_clock);

        info->tx_types = (1 << HWTSTAMP_TX_OFF) | (1 << HWTSTAMP_TX_ON);

        info->rx_filters = (1 << HWTSTAMP_FILTER_NONE) |
                           (1 << HWTSTAMP_FILTER_PTP_V1_L4_EVENT) |
                           (1 << HWTSTAMP_FILTER_PTP_V2_L2_EVENT) |
                           (1 << HWTSTAMP_FILTER_PTP_V2_L4_EVENT);

        return 0;
}
#endif

/* Return register dump len. */
static int lio_get_regs_len(struct net_device *dev)
{
        struct lio *lio = GET_LIO(dev);
        struct octeon_device *oct = lio->oct_dev;

        switch (oct->chip_id) {
        case OCTEON_CN23XX_PF_VID:
                return OCT_ETHTOOL_REGDUMP_LEN_23XX;
        case OCTEON_CN23XX_VF_VID:
                return OCT_ETHTOOL_REGDUMP_LEN_23XX_VF;
        default:
                return OCT_ETHTOOL_REGDUMP_LEN;
        }
}

static int cn23xx_read_csr_reg(char *s, struct octeon_device *oct)
{
        u32 reg;
        u8 pf_num = oct->pf_num;
        int len = 0;
        int i;

        /* PCI  Window Registers */

        len += sprintf(s + len, "\n\t Octeon CSR Registers\n\n");

        /*0x29030 or 0x29040*/
        reg = CN23XX_SLI_PKT_MAC_RINFO64(oct->pcie_port, oct->pf_num);
        len += sprintf(s + len,
                       "\n[%08x] (SLI_PKT_MAC%d_PF%d_RINFO): %016llx\n",
                       reg, oct->pcie_port, oct->pf_num,
                       (u64)octeon_read_csr64(oct, reg));

        /*0x27080 or 0x27090*/
        reg = CN23XX_SLI_MAC_PF_INT_ENB64(oct->pcie_port, oct->pf_num);
        len +=
            sprintf(s + len, "\n[%08x] (SLI_MAC%d_PF%d_INT_ENB): %016llx\n",
                    reg, oct->pcie_port, oct->pf_num,
                    (u64)octeon_read_csr64(oct, reg));

        /*0x27000 or 0x27010*/
        reg = CN23XX_SLI_MAC_PF_INT_SUM64(oct->pcie_port, oct->pf_num);
        len +=
            sprintf(s + len, "\n[%08x] (SLI_MAC%d_PF%d_INT_SUM): %016llx\n",
                    reg, oct->pcie_port, oct->pf_num,
                    (u64)octeon_read_csr64(oct, reg));

        /*0x29120*/
        reg = 0x29120;
        len += sprintf(s + len, "\n[%08x] (SLI_PKT_MEM_CTL): %016llx\n", reg,
                       (u64)octeon_read_csr64(oct, reg));

        /*0x27300*/
        reg = 0x27300 + oct->pcie_port * CN23XX_MAC_INT_OFFSET +
              (oct->pf_num) * CN23XX_PF_INT_OFFSET;
        len += sprintf(
            s + len, "\n[%08x] (SLI_MAC%d_PF%d_PKT_VF_INT): %016llx\n", reg,
            oct->pcie_port, oct->pf_num, (u64)octeon_read_csr64(oct, reg));

        /*0x27200*/
        reg = 0x27200 + oct->pcie_port * CN23XX_MAC_INT_OFFSET +
              (oct->pf_num) * CN23XX_PF_INT_OFFSET;
        len += sprintf(s + len,
                       "\n[%08x] (SLI_MAC%d_PF%d_PP_VF_INT): %016llx\n",
                       reg, oct->pcie_port, oct->pf_num,
                       (u64)octeon_read_csr64(oct, reg));

        /*29130*/
        reg = CN23XX_SLI_PKT_CNT_INT;
        len += sprintf(s + len, "\n[%08x] (SLI_PKT_CNT_INT): %016llx\n", reg,
                       (u64)octeon_read_csr64(oct, reg));

        /*0x29140*/
        reg = CN23XX_SLI_PKT_TIME_INT;
        len += sprintf(s + len, "\n[%08x] (SLI_PKT_TIME_INT): %016llx\n", reg,
                       (u64)octeon_read_csr64(oct, reg));

        /*0x29160*/
        reg = 0x29160;
        len += sprintf(s + len, "\n[%08x] (SLI_PKT_INT): %016llx\n", reg,
                       (u64)octeon_read_csr64(oct, reg));

        /*0x29180*/
        reg = CN23XX_SLI_OQ_WMARK;
        len += sprintf(s + len, "\n[%08x] (SLI_PKT_OUTPUT_WMARK): %016llx\n",
                       reg, (u64)octeon_read_csr64(oct, reg));

        /*0x291E0*/
        reg = CN23XX_SLI_PKT_IOQ_RING_RST;
        len += sprintf(s + len, "\n[%08x] (SLI_PKT_RING_RST): %016llx\n", reg,
                       (u64)octeon_read_csr64(oct, reg));

        /*0x29210*/
        reg = CN23XX_SLI_GBL_CONTROL;
        len += sprintf(s + len,
                       "\n[%08x] (SLI_PKT_GBL_CONTROL): %016llx\n", reg,
                       (u64)octeon_read_csr64(oct, reg));

        /*0x29220*/
        reg = 0x29220;
        len += sprintf(s + len, "\n[%08x] (SLI_PKT_BIST_STATUS): %016llx\n",
                       reg, (u64)octeon_read_csr64(oct, reg));

        /*PF only*/
        if (pf_num == 0) {
                /*0x29260*/
                reg = CN23XX_SLI_OUT_BP_EN_W1S;
                len += sprintf(s + len,
                               "\n[%08x] (SLI_PKT_OUT_BP_EN_W1S):  %016llx\n",
                               reg, (u64)octeon_read_csr64(oct, reg));
        } else if (pf_num == 1) {
                /*0x29270*/
                reg = CN23XX_SLI_OUT_BP_EN2_W1S;
                len += sprintf(s + len,
                               "\n[%08x] (SLI_PKT_OUT_BP_EN2_W1S): %016llx\n",
                               reg, (u64)octeon_read_csr64(oct, reg));
        }

        for (i = 0; i < CN23XX_MAX_OUTPUT_QUEUES; i++) {
                reg = CN23XX_SLI_OQ_BUFF_INFO_SIZE(i);
                len +=
                    sprintf(s + len, "\n[%08x] (SLI_PKT%d_OUT_SIZE): %016llx\n",
                            reg, i, (u64)octeon_read_csr64(oct, reg));
        }

        /*0x10040*/
        for (i = 0; i < CN23XX_MAX_INPUT_QUEUES; i++) {
                reg = CN23XX_SLI_IQ_INSTR_COUNT64(i);
                len += sprintf(s + len,
                               "\n[%08x] (SLI_PKT_IN_DONE%d_CNTS): %016llx\n",
                               reg, i, (u64)octeon_read_csr64(oct, reg));
        }

        /*0x10080*/
        for (i = 0; i < CN23XX_MAX_OUTPUT_QUEUES; i++) {
                reg = CN23XX_SLI_OQ_PKTS_CREDIT(i);
                len += sprintf(s + len,
                               "\n[%08x] (SLI_PKT%d_SLIST_BAOFF_DBELL): %016llx\n",
                               reg, i, (u64)octeon_read_csr64(oct, reg));
        }

        /*0x10090*/
        for (i = 0; i < CN23XX_MAX_OUTPUT_QUEUES; i++) {
                reg = CN23XX_SLI_OQ_SIZE(i);
                len += sprintf(
                    s + len, "\n[%08x] (SLI_PKT%d_SLIST_FIFO_RSIZE): %016llx\n",
                    reg, i, (u64)octeon_read_csr64(oct, reg));
        }

        /*0x10050*/
        for (i = 0; i < CN23XX_MAX_OUTPUT_QUEUES; i++) {
                reg = CN23XX_SLI_OQ_PKT_CONTROL(i);
                len += sprintf(
                        s + len,
                        "\n[%08x] (SLI_PKT%d__OUTPUT_CONTROL): %016llx\n",
                        reg, i, (u64)octeon_read_csr64(oct, reg));
        }

        /*0x10070*/
        for (i = 0; i < CN23XX_MAX_OUTPUT_QUEUES; i++) {
                reg = CN23XX_SLI_OQ_BASE_ADDR64(i);
                len += sprintf(s + len,
                               "\n[%08x] (SLI_PKT%d_SLIST_BADDR): %016llx\n",
                               reg, i, (u64)octeon_read_csr64(oct, reg));
        }

        /*0x100a0*/
        for (i = 0; i < CN23XX_MAX_OUTPUT_QUEUES; i++) {
                reg = CN23XX_SLI_OQ_PKT_INT_LEVELS(i);
                len += sprintf(s + len,
                               "\n[%08x] (SLI_PKT%d_INT_LEVELS): %016llx\n",
                               reg, i, (u64)octeon_read_csr64(oct, reg));
        }

        /*0x100b0*/
        for (i = 0; i < CN23XX_MAX_OUTPUT_QUEUES; i++) {
                reg = CN23XX_SLI_OQ_PKTS_SENT(i);
                len += sprintf(s + len, "\n[%08x] (SLI_PKT%d_CNTS): %016llx\n",
                               reg, i, (u64)octeon_read_csr64(oct, reg));
        }

        /*0x100c0*/
        for (i = 0; i < CN23XX_MAX_OUTPUT_QUEUES; i++) {
                reg = 0x100c0 + i * CN23XX_OQ_OFFSET;
                len += sprintf(s + len,
                               "\n[%08x] (SLI_PKT%d_ERROR_INFO): %016llx\n",
                               reg, i, (u64)octeon_read_csr64(oct, reg));

                /*0x10000*/
                for (i = 0; i < CN23XX_MAX_INPUT_QUEUES; i++) {
                        reg = CN23XX_SLI_IQ_PKT_CONTROL64(i);
                        len += sprintf(
                                s + len,
                                "\n[%08x] (SLI_PKT%d_INPUT_CONTROL): %016llx\n",
                                reg, i, (u64)octeon_read_csr64(oct, reg));
                }

                /*0x10010*/
                for (i = 0; i < CN23XX_MAX_INPUT_QUEUES; i++) {
                        reg = CN23XX_SLI_IQ_BASE_ADDR64(i);
                        len += sprintf(
                            s + len,
                            "\n[%08x] (SLI_PKT%d_INSTR_BADDR): %016llx\n", reg,
                            i, (u64)octeon_read_csr64(oct, reg));
                }

                /*0x10020*/
                for (i = 0; i < CN23XX_MAX_INPUT_QUEUES; i++) {
                        reg = CN23XX_SLI_IQ_DOORBELL(i);
                        len += sprintf(
                            s + len,
                            "\n[%08x] (SLI_PKT%d_INSTR_BAOFF_DBELL): %016llx\n",
                            reg, i, (u64)octeon_read_csr64(oct, reg));
                }

                /*0x10030*/
                for (i = 0; i < CN23XX_MAX_INPUT_QUEUES; i++) {
                        reg = CN23XX_SLI_IQ_SIZE(i);
                        len += sprintf(
                            s + len,
                            "\n[%08x] (SLI_PKT%d_INSTR_FIFO_RSIZE): %016llx\n",
                            reg, i, (u64)octeon_read_csr64(oct, reg));
                }

                /*0x10040*/
                for (i = 0; i < CN23XX_MAX_INPUT_QUEUES; i++)
                        reg = CN23XX_SLI_IQ_INSTR_COUNT64(i);
                len += sprintf(s + len,
                               "\n[%08x] (SLI_PKT_IN_DONE%d_CNTS): %016llx\n",
                               reg, i, (u64)octeon_read_csr64(oct, reg));
        }

        return len;
}

static int cn23xx_vf_read_csr_reg(char *s, struct octeon_device *oct)
{
        int len = 0;
        u32 reg;
        int i;

        /* PCI  Window Registers */

        len += sprintf(s + len, "\n\t Octeon CSR Registers\n\n");

        for (i = 0; i < (oct->sriov_info.rings_per_vf); i++) {
                reg = CN23XX_VF_SLI_OQ_BUFF_INFO_SIZE(i);
                len += sprintf(s + len,
                               "\n[%08x] (SLI_PKT%d_OUT_SIZE): %016llx\n",
                               reg, i, (u64)octeon_read_csr64(oct, reg));
        }

        for (i = 0; i < (oct->sriov_info.rings_per_vf); i++) {
                reg = CN23XX_VF_SLI_IQ_INSTR_COUNT64(i);
                len += sprintf(s + len,
                               "\n[%08x] (SLI_PKT_IN_DONE%d_CNTS): %016llx\n",
                               reg, i, (u64)octeon_read_csr64(oct, reg));
        }

        for (i = 0; i < (oct->sriov_info.rings_per_vf); i++) {
                reg = CN23XX_VF_SLI_OQ_PKTS_CREDIT(i);
                len += sprintf(s + len,
                               "\n[%08x] (SLI_PKT%d_SLIST_BAOFF_DBELL): %016llx\n",
                               reg, i, (u64)octeon_read_csr64(oct, reg));
        }

        for (i = 0; i < (oct->sriov_info.rings_per_vf); i++) {
                reg = CN23XX_VF_SLI_OQ_SIZE(i);
                len += sprintf(s + len,
                               "\n[%08x] (SLI_PKT%d_SLIST_FIFO_RSIZE): %016llx\n",
                               reg, i, (u64)octeon_read_csr64(oct, reg));
        }

        for (i = 0; i < (oct->sriov_info.rings_per_vf); i++) {
                reg = CN23XX_VF_SLI_OQ_PKT_CONTROL(i);
                len += sprintf(s + len,
                               "\n[%08x] (SLI_PKT%d__OUTPUT_CONTROL): %016llx\n",
                               reg, i, (u64)octeon_read_csr64(oct, reg));
        }

        for (i = 0; i < (oct->sriov_info.rings_per_vf); i++) {
                reg = CN23XX_VF_SLI_OQ_BASE_ADDR64(i);
                len += sprintf(s + len,
                               "\n[%08x] (SLI_PKT%d_SLIST_BADDR): %016llx\n",
                               reg, i, (u64)octeon_read_csr64(oct, reg));
        }

        for (i = 0; i < (oct->sriov_info.rings_per_vf); i++) {
                reg = CN23XX_VF_SLI_OQ_PKT_INT_LEVELS(i);
                len += sprintf(s + len,
                               "\n[%08x] (SLI_PKT%d_INT_LEVELS): %016llx\n",
                               reg, i, (u64)octeon_read_csr64(oct, reg));
        }

        for (i = 0; i < (oct->sriov_info.rings_per_vf); i++) {
                reg = CN23XX_VF_SLI_OQ_PKTS_SENT(i);
                len += sprintf(s + len, "\n[%08x] (SLI_PKT%d_CNTS): %016llx\n",
                               reg, i, (u64)octeon_read_csr64(oct, reg));
        }

        for (i = 0; i < (oct->sriov_info.rings_per_vf); i++) {
                reg = 0x100c0 + i * CN23XX_VF_OQ_OFFSET;
                len += sprintf(s + len,
                               "\n[%08x] (SLI_PKT%d_ERROR_INFO): %016llx\n",
                               reg, i, (u64)octeon_read_csr64(oct, reg));
        }

        for (i = 0; i < (oct->sriov_info.rings_per_vf); i++) {
                reg = 0x100d0 + i * CN23XX_VF_IQ_OFFSET;
                len += sprintf(s + len,
                               "\n[%08x] (SLI_PKT%d_VF_INT_SUM): %016llx\n",
                               reg, i, (u64)octeon_read_csr64(oct, reg));
        }

        for (i = 0; i < (oct->sriov_info.rings_per_vf); i++) {
                reg = CN23XX_VF_SLI_IQ_PKT_CONTROL64(i);
                len += sprintf(s + len,
                               "\n[%08x] (SLI_PKT%d_INPUT_CONTROL): %016llx\n",
                               reg, i, (u64)octeon_read_csr64(oct, reg));
        }

        for (i = 0; i < (oct->sriov_info.rings_per_vf); i++) {
                reg = CN23XX_VF_SLI_IQ_BASE_ADDR64(i);
                len += sprintf(s + len,
                               "\n[%08x] (SLI_PKT%d_INSTR_BADDR): %016llx\n",
                               reg, i, (u64)octeon_read_csr64(oct, reg));
        }

        for (i = 0; i < (oct->sriov_info.rings_per_vf); i++) {
                reg = CN23XX_VF_SLI_IQ_DOORBELL(i);
                len += sprintf(s + len,
                               "\n[%08x] (SLI_PKT%d_INSTR_BAOFF_DBELL): %016llx\n",
                               reg, i, (u64)octeon_read_csr64(oct, reg));
        }

        for (i = 0; i < (oct->sriov_info.rings_per_vf); i++) {
                reg = CN23XX_VF_SLI_IQ_SIZE(i);
                len += sprintf(s + len,
                               "\n[%08x] (SLI_PKT%d_INSTR_FIFO_RSIZE): %016llx\n",
                               reg, i, (u64)octeon_read_csr64(oct, reg));
        }

        for (i = 0; i < (oct->sriov_info.rings_per_vf); i++) {
                reg = CN23XX_VF_SLI_IQ_INSTR_COUNT64(i);
                len += sprintf(s + len,
                               "\n[%08x] (SLI_PKT_IN_DONE%d_CNTS): %016llx\n",
                               reg, i, (u64)octeon_read_csr64(oct, reg));
        }

        return len;
}

static int cn6xxx_read_csr_reg(char *s, struct octeon_device *oct)
{
        u32 reg;
        int i, len = 0;

        /* PCI  Window Registers */

        len += sprintf(s + len, "\n\t Octeon CSR Registers\n\n");
        reg = CN6XXX_WIN_WR_ADDR_LO;
        len += sprintf(s + len, "\n[%02x] (WIN_WR_ADDR_LO): %08x\n",
                       CN6XXX_WIN_WR_ADDR_LO, octeon_read_csr(oct, reg));
        reg = CN6XXX_WIN_WR_ADDR_HI;
        len += sprintf(s + len, "[%02x] (WIN_WR_ADDR_HI): %08x\n",
                       CN6XXX_WIN_WR_ADDR_HI, octeon_read_csr(oct, reg));
        reg = CN6XXX_WIN_RD_ADDR_LO;
        len += sprintf(s + len, "[%02x] (WIN_RD_ADDR_LO): %08x\n",
                       CN6XXX_WIN_RD_ADDR_LO, octeon_read_csr(oct, reg));
        reg = CN6XXX_WIN_RD_ADDR_HI;
        len += sprintf(s + len, "[%02x] (WIN_RD_ADDR_HI): %08x\n",
                       CN6XXX_WIN_RD_ADDR_HI, octeon_read_csr(oct, reg));
        reg = CN6XXX_WIN_WR_DATA_LO;
        len += sprintf(s + len, "[%02x] (WIN_WR_DATA_LO): %08x\n",
                       CN6XXX_WIN_WR_DATA_LO, octeon_read_csr(oct, reg));
        reg = CN6XXX_WIN_WR_DATA_HI;
        len += sprintf(s + len, "[%02x] (WIN_WR_DATA_HI): %08x\n",
                       CN6XXX_WIN_WR_DATA_HI, octeon_read_csr(oct, reg));
        len += sprintf(s + len, "[%02x] (WIN_WR_MASK_REG): %08x\n",
                       CN6XXX_WIN_WR_MASK_REG,
                       octeon_read_csr(oct, CN6XXX_WIN_WR_MASK_REG));

        /* PCI  Interrupt Register */
        len += sprintf(s + len, "\n[%x] (INT_ENABLE PORT 0): %08x\n",
                       CN6XXX_SLI_INT_ENB64_PORT0, octeon_read_csr(oct,
                                                CN6XXX_SLI_INT_ENB64_PORT0));
        len += sprintf(s + len, "\n[%x] (INT_ENABLE PORT 1): %08x\n",
                       CN6XXX_SLI_INT_ENB64_PORT1,
                       octeon_read_csr(oct, CN6XXX_SLI_INT_ENB64_PORT1));
        len += sprintf(s + len, "[%x] (INT_SUM): %08x\n", CN6XXX_SLI_INT_SUM64,
                       octeon_read_csr(oct, CN6XXX_SLI_INT_SUM64));

        /* PCI  Output queue registers */
        for (i = 0; i < oct->num_oqs; i++) {
                reg = CN6XXX_SLI_OQ_PKTS_SENT(i);
                len += sprintf(s + len, "\n[%x] (PKTS_SENT_%d): %08x\n",
                               reg, i, octeon_read_csr(oct, reg));
                reg = CN6XXX_SLI_OQ_PKTS_CREDIT(i);
                len += sprintf(s + len, "[%x] (PKT_CREDITS_%d): %08x\n",
                               reg, i, octeon_read_csr(oct, reg));
        }
        reg = CN6XXX_SLI_OQ_INT_LEVEL_PKTS;
        len += sprintf(s + len, "\n[%x] (PKTS_SENT_INT_LEVEL): %08x\n",
                       reg, octeon_read_csr(oct, reg));
        reg = CN6XXX_SLI_OQ_INT_LEVEL_TIME;
        len += sprintf(s + len, "[%x] (PKTS_SENT_TIME): %08x\n",
                       reg, octeon_read_csr(oct, reg));

        /* PCI  Input queue registers */
        for (i = 0; i <= 3; i++) {
                u32 reg;

                reg = CN6XXX_SLI_IQ_DOORBELL(i);
                len += sprintf(s + len, "\n[%x] (INSTR_DOORBELL_%d): %08x\n",
                               reg, i, octeon_read_csr(oct, reg));
                reg = CN6XXX_SLI_IQ_INSTR_COUNT(i);
                len += sprintf(s + len, "[%x] (INSTR_COUNT_%d): %08x\n",
                               reg, i, octeon_read_csr(oct, reg));
        }

        /* PCI  DMA registers */

        len += sprintf(s + len, "\n[%x] (DMA_CNT_0): %08x\n",
                       CN6XXX_DMA_CNT(0),
                       octeon_read_csr(oct, CN6XXX_DMA_CNT(0)));
        reg = CN6XXX_DMA_PKT_INT_LEVEL(0);
        len += sprintf(s + len, "[%x] (DMA_INT_LEV_0): %08x\n",
                       CN6XXX_DMA_PKT_INT_LEVEL(0), octeon_read_csr(oct, reg));
        reg = CN6XXX_DMA_TIME_INT_LEVEL(0);
        len += sprintf(s + len, "[%x] (DMA_TIME_0): %08x\n",
                       CN6XXX_DMA_TIME_INT_LEVEL(0),
                       octeon_read_csr(oct, reg));

        len += sprintf(s + len, "\n[%x] (DMA_CNT_1): %08x\n",
                       CN6XXX_DMA_CNT(1),
                       octeon_read_csr(oct, CN6XXX_DMA_CNT(1)));
        reg = CN6XXX_DMA_PKT_INT_LEVEL(1);
        len += sprintf(s + len, "[%x] (DMA_INT_LEV_1): %08x\n",
                       CN6XXX_DMA_PKT_INT_LEVEL(1),
                       octeon_read_csr(oct, reg));
        reg = CN6XXX_DMA_PKT_INT_LEVEL(1);
        len += sprintf(s + len, "[%x] (DMA_TIME_1): %08x\n",
                       CN6XXX_DMA_TIME_INT_LEVEL(1),
                       octeon_read_csr(oct, reg));

        /* PCI  Index registers */

        len += sprintf(s + len, "\n");

        for (i = 0; i < 16; i++) {
                reg = lio_pci_readq(oct, CN6XXX_BAR1_REG(i, oct->pcie_port));
                len += sprintf(s + len, "[%llx] (BAR1_INDEX_%02d): %08x\n",
                               CN6XXX_BAR1_REG(i, oct->pcie_port), i, reg);
        }

        return len;
}

static int cn6xxx_read_config_reg(char *s, struct octeon_device *oct)
{
        u32 val;
        int i, len = 0;

        /* PCI CONFIG Registers */

        len += sprintf(s + len,
                       "\n\t Octeon Config space Registers\n\n");

        for (i = 0; i <= 13; i++) {
                pci_read_config_dword(oct->pci_dev, (i * 4), &val);
                len += sprintf(s + len, "[0x%x] (Config[%d]): 0x%08x\n",
                               (i * 4), i, val);
        }

        for (i = 30; i <= 34; i++) {
                pci_read_config_dword(oct->pci_dev, (i * 4), &val);
                len += sprintf(s + len, "[0x%x] (Config[%d]): 0x%08x\n",
                               (i * 4), i, val);
        }

        return len;
}

/*  Return register dump user app.  */
static void lio_get_regs(struct net_device *dev,
                         struct ethtool_regs *regs, void *regbuf)
{
        struct lio *lio = GET_LIO(dev);
        int len = 0;
        struct octeon_device *oct = lio->oct_dev;

        regs->version = OCT_ETHTOOL_REGSVER;

        switch (oct->chip_id) {
        case OCTEON_CN23XX_PF_VID:
                memset(regbuf, 0, OCT_ETHTOOL_REGDUMP_LEN_23XX);
                len += cn23xx_read_csr_reg(regbuf + len, oct);
                break;
        case OCTEON_CN23XX_VF_VID:
                memset(regbuf, 0, OCT_ETHTOOL_REGDUMP_LEN_23XX_VF);
                len += cn23xx_vf_read_csr_reg(regbuf + len, oct);
                break;
        case OCTEON_CN68XX:
        case OCTEON_CN66XX:
                memset(regbuf, 0, OCT_ETHTOOL_REGDUMP_LEN);
                len += cn6xxx_read_csr_reg(regbuf + len, oct);
                len += cn6xxx_read_config_reg(regbuf + len, oct);
                break;
        default:
                dev_err(&oct->pci_dev->dev, "%s Unknown chipid: %d\n",
                        __func__, oct->chip_id);
        }
}

static u32 lio_get_priv_flags(struct net_device *netdev)
{
        struct lio *lio = GET_LIO(netdev);

        return lio->oct_dev->priv_flags;
}

static int lio_set_priv_flags(struct net_device *netdev, u32 flags)
{
        struct lio *lio = GET_LIO(netdev);
        bool intr_by_tx_bytes = !!(flags & (0x1 << OCT_PRIV_FLAG_TX_BYTES));

        lio_set_priv_flag(lio->oct_dev, OCT_PRIV_FLAG_TX_BYTES,
                          intr_by_tx_bytes);
        return 0;
}

static int lio_get_fecparam(struct net_device *netdev,
                            struct ethtool_fecparam *fec)
{
        struct lio *lio = GET_LIO(netdev);
        struct octeon_device *oct = lio->oct_dev;

        fec->active_fec = ETHTOOL_FEC_NONE;
        fec->fec = ETHTOOL_FEC_NONE;

        if (oct->subsystem_id == OCTEON_CN2350_25GB_SUBSYS_ID ||
            oct->subsystem_id == OCTEON_CN2360_25GB_SUBSYS_ID) {
                if (oct->no_speed_setting == 1)
                        return 0;

                liquidio_get_fec(lio);
                fec->fec = (ETHTOOL_FEC_RS | ETHTOOL_FEC_OFF);
                if (oct->props[lio->ifidx].fec == 1)
                        fec->active_fec = ETHTOOL_FEC_RS;
                else
                        fec->active_fec = ETHTOOL_FEC_OFF;
        }

        return 0;
}

static int lio_set_fecparam(struct net_device *netdev,
                            struct ethtool_fecparam *fec)
{
        struct lio *lio = GET_LIO(netdev);
        struct octeon_device *oct = lio->oct_dev;

        if (oct->subsystem_id == OCTEON_CN2350_25GB_SUBSYS_ID ||
            oct->subsystem_id == OCTEON_CN2360_25GB_SUBSYS_ID) {
                if (oct->no_speed_setting == 1)
                        return -EOPNOTSUPP;

                if (fec->fec & ETHTOOL_FEC_OFF)
                        liquidio_set_fec(lio, 0);
                else if (fec->fec & ETHTOOL_FEC_RS)
                        liquidio_set_fec(lio, 1);
                else
                        return -EOPNOTSUPP;
        } else {
                return -EOPNOTSUPP;
        }

        return 0;
}

#define LIO_ETHTOOL_COALESCE    (ETHTOOL_COALESCE_RX_USECS |            \
                                 ETHTOOL_COALESCE_MAX_FRAMES |          \
                                 ETHTOOL_COALESCE_USE_ADAPTIVE |        \
                                 ETHTOOL_COALESCE_RX_MAX_FRAMES_LOW |   \
                                 ETHTOOL_COALESCE_TX_MAX_FRAMES_LOW |   \
                                 ETHTOOL_COALESCE_RX_MAX_FRAMES_HIGH |  \
                                 ETHTOOL_COALESCE_TX_MAX_FRAMES_HIGH |  \
                                 ETHTOOL_COALESCE_PKT_RATE_RX_USECS)

static const struct ethtool_ops lio_ethtool_ops = {
        .supported_coalesce_params = LIO_ETHTOOL_COALESCE,
        .get_link_ksettings     = lio_get_link_ksettings,
        .set_link_ksettings     = lio_set_link_ksettings,
        .get_fecparam           = lio_get_fecparam,
        .set_fecparam           = lio_set_fecparam,
        .get_link               = ethtool_op_get_link,
        .get_drvinfo            = lio_get_drvinfo,
        .get_ringparam          = lio_ethtool_get_ringparam,
        .set_ringparam          = lio_ethtool_set_ringparam,
        .get_channels           = lio_ethtool_get_channels,
        .set_channels           = lio_ethtool_set_channels,
        .set_phys_id            = lio_set_phys_id,
        .get_eeprom_len         = lio_get_eeprom_len,
        .get_eeprom             = lio_get_eeprom,
        .get_strings            = lio_get_strings,
        .get_ethtool_stats      = lio_get_ethtool_stats,
        .get_pauseparam         = lio_get_pauseparam,
        .set_pauseparam         = lio_set_pauseparam,
        .get_regs_len           = lio_get_regs_len,
        .get_regs               = lio_get_regs,
        .get_msglevel           = lio_get_msglevel,
        .set_msglevel           = lio_set_msglevel,
        .get_sset_count         = lio_get_sset_count,
        .get_coalesce           = lio_get_intr_coalesce,
        .set_coalesce           = lio_set_intr_coalesce,
        .get_priv_flags         = lio_get_priv_flags,
        .set_priv_flags         = lio_set_priv_flags,
#ifdef PTP_HARDWARE_TIMESTAMPING
        .get_ts_info            = lio_get_ts_info,
#endif
};

static const struct ethtool_ops lio_vf_ethtool_ops = {
        .supported_coalesce_params = LIO_ETHTOOL_COALESCE,
        .get_link_ksettings     = lio_get_link_ksettings,
        .get_link               = ethtool_op_get_link,
        .get_drvinfo            = lio_get_vf_drvinfo,
        .get_ringparam          = lio_ethtool_get_ringparam,
        .set_ringparam          = lio_ethtool_set_ringparam,
        .get_channels           = lio_ethtool_get_channels,
        .set_channels           = lio_ethtool_set_channels,
        .get_strings            = lio_vf_get_strings,
        .get_ethtool_stats      = lio_vf_get_ethtool_stats,
        .get_regs_len           = lio_get_regs_len,
        .get_regs               = lio_get_regs,
        .get_msglevel           = lio_get_msglevel,
        .set_msglevel           = lio_vf_set_msglevel,
        .get_sset_count         = lio_vf_get_sset_count,
        .get_coalesce           = lio_get_intr_coalesce,
        .set_coalesce           = lio_set_intr_coalesce,
        .get_priv_flags         = lio_get_priv_flags,
        .set_priv_flags         = lio_set_priv_flags,
#ifdef PTP_HARDWARE_TIMESTAMPING
        .get_ts_info            = lio_get_ts_info,
#endif
};

void liquidio_set_ethtool_ops(struct net_device *netdev)
{
        struct lio *lio = GET_LIO(netdev);
        struct octeon_device *oct = lio->oct_dev;

        if (OCTEON_CN23XX_VF(oct))
                netdev->ethtool_ops = &lio_vf_ethtool_ops;
        else
                netdev->ethtool_ops = &lio_ethtool_ops;
}
EXPORT_SYMBOL_GPL(liquidio_set_ethtool_ops);