linux_kernel/drivers/net/ethernet/intel/ice/ice_ethtool.c

// SPDX-License-Identifier: GPL-2.0
/* Copyright (c) 2018, Intel Corporation. */

/* ethtool support for ice */

#include "ice.h"

struct ice_stats {
	char stat_string[ETH_GSTRING_LEN];
	int sizeof_stat;
	int stat_offset;
};

#define ICE_STAT(_type, _name, _stat) { \
	.stat_string = _name, \
	.sizeof_stat = FIELD_SIZEOF(_type, _stat), \
	.stat_offset = offsetof(_type, _stat) \
}

#define ICE_VSI_STAT(_name, _stat) \
		ICE_STAT(struct ice_vsi, _name, _stat)
#define ICE_PF_STAT(_name, _stat) \
		ICE_STAT(struct ice_pf, _name, _stat)

static int ice_q_stats_len(struct net_device *netdev)
{
	struct ice_netdev_priv *np = netdev_priv(netdev);

	return ((np->vsi->alloc_txq + np->vsi->alloc_rxq) *
		(sizeof(struct ice_q_stats) / sizeof(u64)));
}

#define ICE_PF_STATS_LEN	ARRAY_SIZE(ice_gstrings_pf_stats)
#define ICE_VSI_STATS_LEN	ARRAY_SIZE(ice_gstrings_vsi_stats)

#define ICE_ALL_STATS_LEN(n)	(ICE_PF_STATS_LEN + ICE_VSI_STATS_LEN + \
				 ice_q_stats_len(n))

static const struct ice_stats ice_gstrings_vsi_stats[] = {
	ICE_VSI_STAT("tx_unicast", eth_stats.tx_unicast),
	ICE_VSI_STAT("rx_unicast", eth_stats.rx_unicast),
	ICE_VSI_STAT("tx_multicast", eth_stats.tx_multicast),
	ICE_VSI_STAT("rx_multicast", eth_stats.rx_multicast),
	ICE_VSI_STAT("tx_broadcast", eth_stats.tx_broadcast),
	ICE_VSI_STAT("rx_broadcast", eth_stats.rx_broadcast),
	ICE_VSI_STAT("tx_bytes", eth_stats.tx_bytes),
	ICE_VSI_STAT("rx_bytes", eth_stats.rx_bytes),
	ICE_VSI_STAT("rx_discards", eth_stats.rx_discards),
	ICE_VSI_STAT("tx_errors", eth_stats.tx_errors),
	ICE_VSI_STAT("tx_linearize", tx_linearize),
	ICE_VSI_STAT("rx_unknown_protocol", eth_stats.rx_unknown_protocol),
	ICE_VSI_STAT("rx_alloc_fail", rx_buf_failed),
	ICE_VSI_STAT("rx_pg_alloc_fail", rx_page_failed),
};

/* These PF_STATs might look like duplicates of some NETDEV_STATs,
 * but they aren't. This device is capable of supporting multiple
 * VSIs/netdevs on a single PF. The NETDEV_STATs are for individual
 * netdevs whereas the PF_STATs are for the physical function that's
 * hosting these netdevs.
 *
 * The PF_STATs are appended to the netdev stats only when ethtool -S
 * is queried on the base PF netdev.
 */
static struct ice_stats ice_gstrings_pf_stats[] = {
	ICE_PF_STAT("tx_bytes", stats.eth.tx_bytes),
	ICE_PF_STAT("rx_bytes", stats.eth.rx_bytes),
	ICE_PF_STAT("tx_unicast", stats.eth.tx_unicast),
	ICE_PF_STAT("rx_unicast", stats.eth.rx_unicast),
	ICE_PF_STAT("tx_multicast", stats.eth.tx_multicast),
	ICE_PF_STAT("rx_multicast", stats.eth.rx_multicast),
	ICE_PF_STAT("tx_broadcast", stats.eth.tx_broadcast),
	ICE_PF_STAT("rx_broadcast", stats.eth.rx_broadcast),
	ICE_PF_STAT("tx_errors", stats.eth.tx_errors),
	ICE_PF_STAT("tx_size_64", stats.tx_size_64),
	ICE_PF_STAT("rx_size_64", stats.rx_size_64),
	ICE_PF_STAT("tx_size_127", stats.tx_size_127),
	ICE_PF_STAT("rx_size_127", stats.rx_size_127),
	ICE_PF_STAT("tx_size_255", stats.tx_size_255),
	ICE_PF_STAT("rx_size_255", stats.rx_size_255),
	ICE_PF_STAT("tx_size_511", stats.tx_size_511),
	ICE_PF_STAT("rx_size_511", stats.rx_size_511),
	ICE_PF_STAT("tx_size_1023", stats.tx_size_1023),
	ICE_PF_STAT("rx_size_1023", stats.rx_size_1023),
	ICE_PF_STAT("tx_size_1522", stats.tx_size_1522),
	ICE_PF_STAT("rx_size_1522", stats.rx_size_1522),
	ICE_PF_STAT("tx_size_big", stats.tx_size_big),
	ICE_PF_STAT("rx_size_big", stats.rx_size_big),
	ICE_PF_STAT("link_xon_tx", stats.link_xon_tx),
	ICE_PF_STAT("link_xon_rx", stats.link_xon_rx),
	ICE_PF_STAT("link_xoff_tx", stats.link_xoff_tx),
	ICE_PF_STAT("link_xoff_rx", stats.link_xoff_rx),
	ICE_PF_STAT("tx_dropped_link_down", stats.tx_dropped_link_down),
	ICE_PF_STAT("rx_undersize", stats.rx_undersize),
	ICE_PF_STAT("rx_fragments", stats.rx_fragments),
	ICE_PF_STAT("rx_oversize", stats.rx_oversize),
	ICE_PF_STAT("rx_jabber", stats.rx_jabber),
	ICE_PF_STAT("rx_csum_bad", hw_csum_rx_error),
	ICE_PF_STAT("rx_length_errors", stats.rx_len_errors),
	ICE_PF_STAT("rx_dropped", stats.eth.rx_discards),
	ICE_PF_STAT("rx_crc_errors", stats.crc_errors),
	ICE_PF_STAT("illegal_bytes", stats.illegal_bytes),
	ICE_PF_STAT("mac_local_faults", stats.mac_local_faults),
	ICE_PF_STAT("mac_remote_faults", stats.mac_remote_faults),
};

static u32 ice_regs_dump_list[] = {
	PFGEN_STATE,
	PRTGEN_STATUS,
	QRX_CTRL(0),
	QINT_TQCTL(0),
	QINT_RQCTL(0),
	PFINT_OICR_ENA,
	QRX_ITR(0),
};

/**
 * ice_nvm_version_str - format the NVM version strings
 * @hw: ptr to the hardware info
 */
static char *ice_nvm_version_str(struct ice_hw *hw)
{
	static char buf[ICE_ETHTOOL_FWVER_LEN];
	u8 ver, patch;
	u32 full_ver;
	u16 build;

	full_ver = hw->nvm.oem_ver;
	ver = (u8)((full_ver & ICE_OEM_VER_MASK) >> ICE_OEM_VER_SHIFT);
	build = (u16)((full_ver & ICE_OEM_VER_BUILD_MASK) >>
		      ICE_OEM_VER_BUILD_SHIFT);
	patch = (u8)(full_ver & ICE_OEM_VER_PATCH_MASK);

	snprintf(buf, sizeof(buf), "%x.%02x 0x%x %d.%d.%d",
		 (hw->nvm.ver & ICE_NVM_VER_HI_MASK) >> ICE_NVM_VER_HI_SHIFT,
		 (hw->nvm.ver & ICE_NVM_VER_LO_MASK) >> ICE_NVM_VER_LO_SHIFT,
		 hw->nvm.eetrack, ver, build, patch);

	return buf;
}

static void
ice_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo)
{
	struct ice_netdev_priv *np = netdev_priv(netdev);
	struct ice_vsi *vsi = np->vsi;
	struct ice_pf *pf = vsi->back;

	strlcpy(drvinfo->driver, KBUILD_MODNAME, sizeof(drvinfo->driver));
	strlcpy(drvinfo->version, ice_drv_ver, sizeof(drvinfo->version));
	strlcpy(drvinfo->fw_version, ice_nvm_version_str(&pf->hw),
		sizeof(drvinfo->fw_version));
	strlcpy(drvinfo->bus_info, pci_name(pf->pdev),
		sizeof(drvinfo->bus_info));
}

static int ice_get_regs_len(struct net_device __always_unused *netdev)
{
	return sizeof(ice_regs_dump_list);
}

static void
ice_get_regs(struct net_device *netdev, struct ethtool_regs *regs, void *p)
{
	struct ice_netdev_priv *np = netdev_priv(netdev);
	struct ice_pf *pf = np->vsi->back;
	struct ice_hw *hw = &pf->hw;
	u32 *regs_buf = (u32 *)p;
	int i;

	regs->version = 1;

	for (i = 0; i < ARRAY_SIZE(ice_regs_dump_list); ++i)
		regs_buf[i] = rd32(hw, ice_regs_dump_list[i]);
}

static u32 ice_get_msglevel(struct net_device *netdev)
{
	struct ice_netdev_priv *np = netdev_priv(netdev);
	struct ice_pf *pf = np->vsi->back;

#ifndef CONFIG_DYNAMIC_DEBUG
	if (pf->hw.debug_mask)
		netdev_info(netdev, "hw debug_mask: 0x%llX\n",
			    pf->hw.debug_mask);
#endif /* !CONFIG_DYNAMIC_DEBUG */

	return pf->msg_enable;
}

static void ice_set_msglevel(struct net_device *netdev, u32 data)
{
	struct ice_netdev_priv *np = netdev_priv(netdev);
	struct ice_pf *pf = np->vsi->back;

#ifndef CONFIG_DYNAMIC_DEBUG
	if (ICE_DBG_USER & data)
		pf->hw.debug_mask = data;
	else
		pf->msg_enable = data;
#else
	pf->msg_enable = data;
#endif /* !CONFIG_DYNAMIC_DEBUG */
}

static void ice_get_strings(struct net_device *netdev, u32 stringset, u8 *data)
{
	struct ice_netdev_priv *np = netdev_priv(netdev);
	struct ice_vsi *vsi = np->vsi;
	char *p = (char *)data;
	unsigned int i;

	switch (stringset) {
	case ETH_SS_STATS:
		for (i = 0; i < ICE_VSI_STATS_LEN; i++) {
			snprintf(p, ETH_GSTRING_LEN, "%s",
				 ice_gstrings_vsi_stats[i].stat_string);
			p += ETH_GSTRING_LEN;
		}

		ice_for_each_alloc_txq(vsi, i) {
			snprintf(p, ETH_GSTRING_LEN,
				 "tx-queue-%u.tx_packets", i);
			p += ETH_GSTRING_LEN;
			snprintf(p, ETH_GSTRING_LEN, "tx-queue-%u.tx_bytes", i);
			p += ETH_GSTRING_LEN;
		}

		ice_for_each_alloc_rxq(vsi, i) {
			snprintf(p, ETH_GSTRING_LEN,
				 "rx-queue-%u.rx_packets", i);
			p += ETH_GSTRING_LEN;
			snprintf(p, ETH_GSTRING_LEN, "rx-queue-%u.rx_bytes", i);
			p += ETH_GSTRING_LEN;
		}

		if (vsi->type != ICE_VSI_PF)
			return;

		for (i = 0; i < ICE_PF_STATS_LEN; i++) {
			snprintf(p, ETH_GSTRING_LEN, "port.%s",
				 ice_gstrings_pf_stats[i].stat_string);
			p += ETH_GSTRING_LEN;
		}

		break;
	default:
		break;
	}
}

static int ice_get_sset_count(struct net_device *netdev, int sset)
{
	switch (sset) {
	case ETH_SS_STATS:
		/* The number (and order) of strings reported *must* remain
		 * constant for a given netdevice. This function must not
		 * report a different number based on run time parameters
		 * (such as the number of queues in use, or the setting of
		 * a private ethtool flag). This is due to the nature of the
		 * ethtool stats API.
		 *
		 * User space programs such as ethtool must make 3 separate
		 * ioctl requests, one for size, one for the strings, and
		 * finally one for the stats. Since these cross into
		 * user space, changes to the number or size could result in
		 * undefined memory access or incorrect string<->value
		 * correlations for statistics.
		 *
		 * Even if it appears to be safe, changes to the size or
		 * order of strings will suffer from race conditions and are
		 * not safe.
		 */
		return ICE_ALL_STATS_LEN(netdev);
	default:
		return -EOPNOTSUPP;
	}
}

static void
ice_get_ethtool_stats(struct net_device *netdev,
		      struct ethtool_stats __always_unused *stats, u64 *data)
{
	struct ice_netdev_priv *np = netdev_priv(netdev);
	struct ice_vsi *vsi = np->vsi;
	struct ice_pf *pf = vsi->back;
	struct ice_ring *ring;
	unsigned int j = 0;
	int i = 0;
	char *p;

	for (j = 0; j < ICE_VSI_STATS_LEN; j++) {
		p = (char *)vsi + ice_gstrings_vsi_stats[j].stat_offset;
		data[i++] = (ice_gstrings_vsi_stats[j].sizeof_stat ==
			    sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
	}

	/* populate per queue stats */
	rcu_read_lock();

	ice_for_each_alloc_txq(vsi, j) {
		ring = READ_ONCE(vsi->tx_rings[j]);
		if (ring) {
			data[i++] = ring->stats.pkts;
			data[i++] = ring->stats.bytes;
		} else {
			data[i++] = 0;
			data[i++] = 0;
		}
	}

	ice_for_each_alloc_rxq(vsi, j) {
		ring = READ_ONCE(vsi->rx_rings[j]);
		if (ring) {
			data[i++] = ring->stats.pkts;
			data[i++] = ring->stats.bytes;
		} else {
			data[i++] = 0;
			data[i++] = 0;
		}
	}

	rcu_read_unlock();

	if (vsi->type != ICE_VSI_PF)
		return;

	for (j = 0; j < ICE_PF_STATS_LEN; j++) {
		p = (char *)pf + ice_gstrings_pf_stats[j].stat_offset;
		data[i++] = (ice_gstrings_pf_stats[j].sizeof_stat ==
			     sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
	}
}

/**
 * ice_phy_type_to_ethtool - convert the phy_types to ethtool link modes
 * @netdev: network interface device structure
 * @ks: ethtool link ksettings struct to fill out
 */
static void ice_phy_type_to_ethtool(struct net_device *netdev,
				    struct ethtool_link_ksettings *ks)
{
	struct ice_netdev_priv *np = netdev_priv(netdev);
	struct ice_link_status *hw_link_info;
	struct ice_vsi *vsi = np->vsi;
	u64 phy_types_low;

	hw_link_info = &vsi->port_info->phy.link_info;
	phy_types_low = vsi->port_info->phy.phy_type_low;

	ethtool_link_ksettings_zero_link_mode(ks, supported);
	ethtool_link_ksettings_zero_link_mode(ks, advertising);

	if (phy_types_low & ICE_PHY_TYPE_LOW_100BASE_TX ||
	    phy_types_low & ICE_PHY_TYPE_LOW_100M_SGMII) {
		ethtool_link_ksettings_add_link_mode(ks, supported,
						     100baseT_Full);
		if (hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_100MB)
			ethtool_link_ksettings_add_link_mode(ks, advertising,
							     100baseT_Full);
	}
	if (phy_types_low & ICE_PHY_TYPE_LOW_1000BASE_T ||
	    phy_types_low & ICE_PHY_TYPE_LOW_1G_SGMII) {
		ethtool_link_ksettings_add_link_mode(ks, supported,
						     1000baseT_Full);
		if (hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_1000MB)
			ethtool_link_ksettings_add_link_mode(ks, advertising,
							     1000baseT_Full);
	}
	if (phy_types_low & ICE_PHY_TYPE_LOW_1000BASE_KX) {
		ethtool_link_ksettings_add_link_mode(ks, supported,
						     1000baseKX_Full);
		if (hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_1000MB)
			ethtool_link_ksettings_add_link_mode(ks, advertising,
							     1000baseKX_Full);
	}
	if (phy_types_low & ICE_PHY_TYPE_LOW_1000BASE_SX ||
	    phy_types_low & ICE_PHY_TYPE_LOW_1000BASE_LX) {
		ethtool_link_ksettings_add_link_mode(ks, supported,
						     1000baseX_Full);
		if (hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_1000MB)
			ethtool_link_ksettings_add_link_mode(ks, advertising,
							     1000baseX_Full);
	}
	if (phy_types_low & ICE_PHY_TYPE_LOW_2500BASE_T) {
		ethtool_link_ksettings_add_link_mode(ks, supported,
						     2500baseT_Full);
		if (hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_2500MB)
			ethtool_link_ksettings_add_link_mode(ks, advertising,
							     2500baseT_Full);
	}
	if (phy_types_low & ICE_PHY_TYPE_LOW_2500BASE_X ||
	    phy_types_low & ICE_PHY_TYPE_LOW_2500BASE_KX) {
		ethtool_link_ksettings_add_link_mode(ks, supported,
						     2500baseX_Full);
		if (hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_2500MB)
			ethtool_link_ksettings_add_link_mode(ks, advertising,
							     2500baseX_Full);
	}
	if (phy_types_low & ICE_PHY_TYPE_LOW_5GBASE_T ||
	    phy_types_low & ICE_PHY_TYPE_LOW_5GBASE_KR) {
		ethtool_link_ksettings_add_link_mode(ks, supported,
						     5000baseT_Full);
		if (hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_5GB)
			ethtool_link_ksettings_add_link_mode(ks, advertising,
							     5000baseT_Full);
	}
	if (phy_types_low & ICE_PHY_TYPE_LOW_10GBASE_T ||
	    phy_types_low & ICE_PHY_TYPE_LOW_10G_SFI_DA ||
	    phy_types_low & ICE_PHY_TYPE_LOW_10G_SFI_AOC_ACC ||
	    phy_types_low & ICE_PHY_TYPE_LOW_10G_SFI_C2C) {
		ethtool_link_ksettings_add_link_mode(ks, supported,
						     10000baseT_Full);
		if (hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_10GB)
			ethtool_link_ksettings_add_link_mode(ks, advertising,
							     10000baseT_Full);
	}
	if (phy_types_low & ICE_PHY_TYPE_LOW_10GBASE_KR_CR1) {
		ethtool_link_ksettings_add_link_mode(ks, supported,
						     10000baseKR_Full);
		if (hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_10GB)
			ethtool_link_ksettings_add_link_mode(ks, advertising,
							     10000baseKR_Full);
	}
	if (phy_types_low & ICE_PHY_TYPE_LOW_10GBASE_SR) {
		ethtool_link_ksettings_add_link_mode(ks, supported,
						     10000baseSR_Full);
		if (hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_10GB)
			ethtool_link_ksettings_add_link_mode(ks, advertising,
							     10000baseSR_Full);
	}
	if (phy_types_low & ICE_PHY_TYPE_LOW_10GBASE_LR) {
		ethtool_link_ksettings_add_link_mode(ks, supported,
						     10000baseLR_Full);
		if (hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_10GB)
			ethtool_link_ksettings_add_link_mode(ks, advertising,
							     10000baseLR_Full);
	}
	if (phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_T ||
	    phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_CR ||
	    phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_CR_S ||
	    phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_CR1 ||
	    phy_types_low & ICE_PHY_TYPE_LOW_25G_AUI_AOC_ACC ||
	    phy_types_low & ICE_PHY_TYPE_LOW_25G_AUI_C2C) {
		ethtool_link_ksettings_add_link_mode(ks, supported,
						     25000baseCR_Full);
		if (hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_25GB)
			ethtool_link_ksettings_add_link_mode(ks, advertising,
							     25000baseCR_Full);
	}
	if (phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_SR ||
	    phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_LR) {
		ethtool_link_ksettings_add_link_mode(ks, supported,
						     25000baseSR_Full);
		if (hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_25GB)
			ethtool_link_ksettings_add_link_mode(ks, advertising,
							     25000baseSR_Full);
	}
	if (phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_KR ||
	    phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_KR_S ||
	    phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_KR1) {
		ethtool_link_ksettings_add_link_mode(ks, supported,
						     25000baseKR_Full);
		if (hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_25GB)
			ethtool_link_ksettings_add_link_mode(ks, advertising,
							     25000baseKR_Full);
	}
	if (phy_types_low & ICE_PHY_TYPE_LOW_40GBASE_KR4) {
		ethtool_link_ksettings_add_link_mode(ks, supported,
						     40000baseKR4_Full);
		if (hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_40GB)
			ethtool_link_ksettings_add_link_mode(ks, advertising,
							     40000baseKR4_Full);
	}
	if (phy_types_low & ICE_PHY_TYPE_LOW_40GBASE_CR4 ||
	    phy_types_low & ICE_PHY_TYPE_LOW_40G_XLAUI_AOC_ACC ||
	    phy_types_low & ICE_PHY_TYPE_LOW_40G_XLAUI) {
		ethtool_link_ksettings_add_link_mode(ks, supported,
						     40000baseCR4_Full);
		if (hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_40GB)
			ethtool_link_ksettings_add_link_mode(ks, advertising,
							     40000baseCR4_Full);
	}
	if (phy_types_low & ICE_PHY_TYPE_LOW_40GBASE_SR4) {
		ethtool_link_ksettings_add_link_mode(ks, supported,
						     40000baseSR4_Full);
		if (hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_40GB)
			ethtool_link_ksettings_add_link_mode(ks, advertising,
							     40000baseSR4_Full);
	}
	if (phy_types_low & ICE_PHY_TYPE_LOW_40GBASE_LR4) {
		ethtool_link_ksettings_add_link_mode(ks, supported,
						     40000baseLR4_Full);
		if (hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_40GB)
			ethtool_link_ksettings_add_link_mode(ks, advertising,
							     40000baseLR4_Full);
	}

	/* Autoneg PHY types */
	if (phy_types_low & ICE_PHY_TYPE_LOW_100BASE_TX ||
	    phy_types_low & ICE_PHY_TYPE_LOW_1000BASE_T ||
	    phy_types_low & ICE_PHY_TYPE_LOW_1000BASE_KX ||
	    phy_types_low & ICE_PHY_TYPE_LOW_2500BASE_T ||
	    phy_types_low & ICE_PHY_TYPE_LOW_2500BASE_KX ||
	    phy_types_low & ICE_PHY_TYPE_LOW_5GBASE_T ||
	    phy_types_low & ICE_PHY_TYPE_LOW_5GBASE_KR ||
	    phy_types_low & ICE_PHY_TYPE_LOW_10GBASE_T ||
	    phy_types_low & ICE_PHY_TYPE_LOW_10GBASE_KR_CR1 ||
	    phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_T ||
	    phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_CR ||
	    phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_CR_S ||
	    phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_CR1 ||
	    phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_KR ||
	    phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_KR_S ||
	    phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_KR1 ||
	    phy_types_low & ICE_PHY_TYPE_LOW_40GBASE_CR4 ||
	    phy_types_low & ICE_PHY_TYPE_LOW_40GBASE_KR4) {
		ethtool_link_ksettings_add_link_mode(ks, supported,
						     Autoneg);
		ethtool_link_ksettings_add_link_mode(ks, advertising,
						     Autoneg);
	}
}

#define TEST_SET_BITS_TIMEOUT	50
#define TEST_SET_BITS_SLEEP_MAX	2000
#define TEST_SET_BITS_SLEEP_MIN	1000

/**
 * ice_get_settings_link_up - Get Link settings for when link is up
 * @ks: ethtool ksettings to fill in
 * @netdev: network interface device structure
 */
static void ice_get_settings_link_up(struct ethtool_link_ksettings *ks,
				     struct net_device *netdev)
{
	struct ice_netdev_priv *np = netdev_priv(netdev);
	struct ethtool_link_ksettings cap_ksettings;
	struct ice_link_status *link_info;
	struct ice_vsi *vsi = np->vsi;
	bool unrecog_phy_low = false;

	link_info = &vsi->port_info->phy.link_info;

	/* Initialize supported and advertised settings based on phy settings */
	switch (link_info->phy_type_low) {
	case ICE_PHY_TYPE_LOW_100BASE_TX:
		ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
		ethtool_link_ksettings_add_link_mode(ks, supported,
						     100baseT_Full);
		ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
		ethtool_link_ksettings_add_link_mode(ks, advertising,
						     100baseT_Full);
		break;
	case ICE_PHY_TYPE_LOW_100M_SGMII:
		ethtool_link_ksettings_add_link_mode(ks, supported,
						     100baseT_Full);
		break;
	case ICE_PHY_TYPE_LOW_1000BASE_T:
		ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
		ethtool_link_ksettings_add_link_mode(ks, supported,
						     1000baseT_Full);
		ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
		ethtool_link_ksettings_add_link_mode(ks, advertising,
						     1000baseT_Full);
		break;
	case ICE_PHY_TYPE_LOW_1G_SGMII:
		ethtool_link_ksettings_add_link_mode(ks, supported,
						     1000baseT_Full);
		break;
	case ICE_PHY_TYPE_LOW_1000BASE_SX:
	case ICE_PHY_TYPE_LOW_1000BASE_LX:
		ethtool_link_ksettings_add_link_mode(ks, supported,
						     1000baseX_Full);
		break;
	case ICE_PHY_TYPE_LOW_1000BASE_KX:
		ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
		ethtool_link_ksettings_add_link_mode(ks, supported,
						     1000baseKX_Full);
		ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
		ethtool_link_ksettings_add_link_mode(ks, advertising,
						     1000baseKX_Full);
		break;
	case ICE_PHY_TYPE_LOW_2500BASE_T:
		ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
		ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
		ethtool_link_ksettings_add_link_mode(ks, supported,
						     2500baseT_Full);
		ethtool_link_ksettings_add_link_mode(ks, advertising,
						     2500baseT_Full);
		break;
	case ICE_PHY_TYPE_LOW_2500BASE_X:
		ethtool_link_ksettings_add_link_mode(ks, supported,
						     2500baseX_Full);
		break;
	case ICE_PHY_TYPE_LOW_2500BASE_KX:
		ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
		ethtool_link_ksettings_add_link_mode(ks, supported,
						     2500baseX_Full);
		ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
		ethtool_link_ksettings_add_link_mode(ks, advertising,
						     2500baseX_Full);
		break;
	case ICE_PHY_TYPE_LOW_5GBASE_T:
	case ICE_PHY_TYPE_LOW_5GBASE_KR:
		ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
		ethtool_link_ksettings_add_link_mode(ks, supported,
						     5000baseT_Full);
		ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
		ethtool_link_ksettings_add_link_mode(ks, advertising,
						     5000baseT_Full);
		break;
	case ICE_PHY_TYPE_LOW_10GBASE_T:
		ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
		ethtool_link_ksettings_add_link_mode(ks, supported,
						     10000baseT_Full);
		ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
		ethtool_link_ksettings_add_link_mode(ks, advertising,
						     10000baseT_Full);
		break;
	case ICE_PHY_TYPE_LOW_10G_SFI_DA:
	case ICE_PHY_TYPE_LOW_10G_SFI_AOC_ACC:
	case ICE_PHY_TYPE_LOW_10G_SFI_C2C:
		ethtool_link_ksettings_add_link_mode(ks, supported,
						     10000baseT_Full);
		break;
	case ICE_PHY_TYPE_LOW_10GBASE_SR:
		ethtool_link_ksettings_add_link_mode(ks, supported,
						     10000baseSR_Full);
		break;
	case ICE_PHY_TYPE_LOW_10GBASE_LR:
		ethtool_link_ksettings_add_link_mode(ks, supported,
						     10000baseLR_Full);
		break;
	case ICE_PHY_TYPE_LOW_10GBASE_KR_CR1:
		ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
		ethtool_link_ksettings_add_link_mode(ks, supported,
						     10000baseKR_Full);
		ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
		ethtool_link_ksettings_add_link_mode(ks, advertising,
						     10000baseKR_Full);
		break;
	case ICE_PHY_TYPE_LOW_25GBASE_T:
	case ICE_PHY_TYPE_LOW_25GBASE_CR:
	case ICE_PHY_TYPE_LOW_25GBASE_CR_S:
	case ICE_PHY_TYPE_LOW_25GBASE_CR1:
		ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
		ethtool_link_ksettings_add_link_mode(ks, supported,
						     25000baseCR_Full);
		ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
		ethtool_link_ksettings_add_link_mode(ks, advertising,
						     25000baseCR_Full);
		break;
	case ICE_PHY_TYPE_LOW_25G_AUI_AOC_ACC:
		ethtool_link_ksettings_add_link_mode(ks, supported,
						     25000baseCR_Full);
		break;
	case ICE_PHY_TYPE_LOW_25GBASE_SR:
	case ICE_PHY_TYPE_LOW_25GBASE_LR:
		ethtool_link_ksettings_add_link_mode(ks, supported,
						     25000baseSR_Full);
		break;
	case ICE_PHY_TYPE_LOW_25GBASE_KR:
	case ICE_PHY_TYPE_LOW_25GBASE_KR1:
	case ICE_PHY_TYPE_LOW_25GBASE_KR_S:
		ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
		ethtool_link_ksettings_add_link_mode(ks, supported,
						     25000baseKR_Full);
		ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
		ethtool_link_ksettings_add_link_mode(ks, advertising,
						     25000baseKR_Full);
		break;
	case ICE_PHY_TYPE_LOW_40GBASE_CR4:
		ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
		ethtool_link_ksettings_add_link_mode(ks, supported,
						     40000baseCR4_Full);
		ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
		ethtool_link_ksettings_add_link_mode(ks, advertising,
						     40000baseCR4_Full);
		break;
	case ICE_PHY_TYPE_LOW_40G_XLAUI_AOC_ACC:
	case ICE_PHY_TYPE_LOW_40G_XLAUI:
		ethtool_link_ksettings_add_link_mode(ks, supported,
						     40000baseCR4_Full);
		break;
	case ICE_PHY_TYPE_LOW_40GBASE_SR4:
		ethtool_link_ksettings_add_link_mode(ks, supported,
						     40000baseSR4_Full);
		break;
	case ICE_PHY_TYPE_LOW_40GBASE_LR4:
		ethtool_link_ksettings_add_link_mode(ks, supported,
						     40000baseLR4_Full);
		break;
	case ICE_PHY_TYPE_LOW_40GBASE_KR4:
		ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
		ethtool_link_ksettings_add_link_mode(ks, supported,
						     40000baseKR4_Full);
		ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
		ethtool_link_ksettings_add_link_mode(ks, advertising,
						     40000baseKR4_Full);
		break;
	default:
		unrecog_phy_low = true;
	}

	if (unrecog_phy_low) {
		/* if we got here and link is up something bad is afoot */
		netdev_info(netdev, "WARNING: Unrecognized PHY_Low (0x%llx).\n",
			    (u64)link_info->phy_type_low);
	}

	/* Now that we've worked out everything that could be supported by the
	 * current PHY type, get what is supported by the NVM and intersect
	 * them to get what is truly supported
	 */
	memset(&cap_ksettings, 0, sizeof(struct ethtool_link_ksettings));
	ice_phy_type_to_ethtool(netdev, &cap_ksettings);
	ethtool_intersect_link_masks(ks, &cap_ksettings);

	switch (link_info->link_speed) {
	case ICE_AQ_LINK_SPEED_40GB:
		ks->base.speed = SPEED_40000;
		break;
	case ICE_AQ_LINK_SPEED_25GB:
		ks->base.speed = SPEED_25000;
		break;
	case ICE_AQ_LINK_SPEED_20GB:
		ks->base.speed = SPEED_20000;
		break;
	case ICE_AQ_LINK_SPEED_10GB:
		ks->base.speed = SPEED_10000;
		break;
	case ICE_AQ_LINK_SPEED_5GB:
		ks->base.speed = SPEED_5000;
		break;
	case ICE_AQ_LINK_SPEED_2500MB:
		ks->base.speed = SPEED_2500;
		break;
	case ICE_AQ_LINK_SPEED_1000MB:
		ks->base.speed = SPEED_1000;
		break;
	case ICE_AQ_LINK_SPEED_100MB:
		ks->base.speed = SPEED_100;
		break;
	default:
		netdev_info(netdev,
			    "WARNING: Unrecognized link_speed (0x%x).\n",
			    link_info->link_speed);
		break;
	}
	ks->base.duplex = DUPLEX_FULL;
}

/**
 * ice_get_settings_link_down - Get the Link settings when link is down
 * @ks: ethtool ksettings to fill in
 * @netdev: network interface device structure
 *
 * Reports link settings that can be determined when link is down
 */
static void
ice_get_settings_link_down(struct ethtool_link_ksettings *ks,
			   struct net_device __always_unused *netdev)
{
	/* link is down and the driver needs to fall back on
	 * supported phy types to figure out what info to display
	 */
	ice_phy_type_to_ethtool(netdev, ks);

	/* With no link, speed and duplex are unknown */
	ks->base.speed = SPEED_UNKNOWN;
	ks->base.duplex = DUPLEX_UNKNOWN;
}

/**
 * ice_get_link_ksettings - Get Link Speed and Duplex settings
 * @netdev: network interface device structure
 * @ks: ethtool ksettings
 *
 * Reports speed/duplex settings based on media_type
 */
static int ice_get_link_ksettings(struct net_device *netdev,
				  struct ethtool_link_ksettings *ks)
{
	struct ice_netdev_priv *np = netdev_priv(netdev);
	struct ice_link_status *hw_link_info;
	struct ice_vsi *vsi = np->vsi;

	ethtool_link_ksettings_zero_link_mode(ks, supported);
	ethtool_link_ksettings_zero_link_mode(ks, advertising);
	hw_link_info = &vsi->port_info->phy.link_info;

	/* set speed and duplex */
	if (hw_link_info->link_info & ICE_AQ_LINK_UP)
		ice_get_settings_link_up(ks, netdev);
	else
		ice_get_settings_link_down(ks, netdev);

	/* set autoneg settings */
	ks->base.autoneg = (hw_link_info->an_info & ICE_AQ_AN_COMPLETED) ?
		AUTONEG_ENABLE : AUTONEG_DISABLE;

	/* set media type settings */
	switch (vsi->port_info->phy.media_type) {
	case ICE_MEDIA_FIBER:
		ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE);
		ks->base.port = PORT_FIBRE;
		break;
	case ICE_MEDIA_BASET:
		ethtool_link_ksettings_add_link_mode(ks, supported, TP);
		ethtool_link_ksettings_add_link_mode(ks, advertising, TP);
		ks->base.port = PORT_TP;
		break;
	case ICE_MEDIA_BACKPLANE:
		ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
		ethtool_link_ksettings_add_link_mode(ks, supported, Backplane);
		ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
		ethtool_link_ksettings_add_link_mode(ks, advertising,
						     Backplane);
		ks->base.port = PORT_NONE;
		break;
	case ICE_MEDIA_DA:
		ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE);
		ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE);
		ks->base.port = PORT_DA;
		break;
	default:
		ks->base.port = PORT_OTHER;
		break;
	}

	/* flow control is symmetric and always supported */
	ethtool_link_ksettings_add_link_mode(ks, supported, Pause);

	switch (vsi->port_info->fc.req_mode) {
	case ICE_FC_FULL:
		ethtool_link_ksettings_add_link_mode(ks, advertising, Pause);
		break;
	case ICE_FC_TX_PAUSE:
		ethtool_link_ksettings_add_link_mode(ks, advertising,
						     Asym_Pause);
		break;
	case ICE_FC_RX_PAUSE:
		ethtool_link_ksettings_add_link_mode(ks, advertising, Pause);
		ethtool_link_ksettings_add_link_mode(ks, advertising,
						     Asym_Pause);
		break;
	case ICE_FC_PFC:
	default:
		ethtool_link_ksettings_del_link_mode(ks, advertising, Pause);
		ethtool_link_ksettings_del_link_mode(ks, advertising,
						     Asym_Pause);
		break;
	}

	return 0;
}

/**
 * ice_ksettings_find_adv_link_speed - Find advertising link speed
 * @ks: ethtool ksettings
 */
static u16
ice_ksettings_find_adv_link_speed(const struct ethtool_link_ksettings *ks)
{
	u16 adv_link_speed = 0;

	if (ethtool_link_ksettings_test_link_mode(ks, advertising,
						  100baseT_Full))
		adv_link_speed |= ICE_AQ_LINK_SPEED_100MB;
	if (ethtool_link_ksettings_test_link_mode(ks, advertising,
						  1000baseX_Full))
		adv_link_speed |= ICE_AQ_LINK_SPEED_1000MB;
	if (ethtool_link_ksettings_test_link_mode(ks, advertising,
						  1000baseT_Full) ||
	    ethtool_link_ksettings_test_link_mode(ks, advertising,
						  1000baseKX_Full))
		adv_link_speed |= ICE_AQ_LINK_SPEED_1000MB;
	if (ethtool_link_ksettings_test_link_mode(ks, advertising,
						  2500baseT_Full))
		adv_link_speed |= ICE_AQ_LINK_SPEED_2500MB;
	if (ethtool_link_ksettings_test_link_mode(ks, advertising,
						  2500baseX_Full))
		adv_link_speed |= ICE_AQ_LINK_SPEED_2500MB;
	if (ethtool_link_ksettings_test_link_mode(ks, advertising,
						  5000baseT_Full))
		adv_link_speed |= ICE_AQ_LINK_SPEED_5GB;
	if (ethtool_link_ksettings_test_link_mode(ks, advertising,
						  10000baseT_Full) ||
	    ethtool_link_ksettings_test_link_mode(ks, advertising,
						  10000baseKR_Full))
		adv_link_speed |= ICE_AQ_LINK_SPEED_10GB;
	if (ethtool_link_ksettings_test_link_mode(ks, advertising,
						  10000baseSR_Full) ||
	    ethtool_link_ksettings_test_link_mode(ks, advertising,
						  10000baseLR_Full))
		adv_link_speed |= ICE_AQ_LINK_SPEED_10GB;
	if (ethtool_link_ksettings_test_link_mode(ks, advertising,
						  25000baseCR_Full) ||
	    ethtool_link_ksettings_test_link_mode(ks, advertising,
						  25000baseSR_Full) ||
	    ethtool_link_ksettings_test_link_mode(ks, advertising,
						  25000baseKR_Full))
		adv_link_speed |= ICE_AQ_LINK_SPEED_25GB;
	if (ethtool_link_ksettings_test_link_mode(ks, advertising,
						  40000baseCR4_Full) ||
	    ethtool_link_ksettings_test_link_mode(ks, advertising,
						  40000baseSR4_Full) ||
	    ethtool_link_ksettings_test_link_mode(ks, advertising,
						  40000baseLR4_Full) ||
	    ethtool_link_ksettings_test_link_mode(ks, advertising,
						  40000baseKR4_Full))
		adv_link_speed |= ICE_AQ_LINK_SPEED_40GB;

	return adv_link_speed;
}

/**
 * ice_setup_autoneg
 * @p: port info
 * @ks: ethtool_link_ksettings
 * @config: configuration that will be sent down to FW
 * @autoneg_enabled: autonegotiation is enabled or not
 * @autoneg_changed: will there a change in autonegotiation
 * @netdev: network interface device structure
 *
 * Setup PHY autonegotiation feature
 */
static int
ice_setup_autoneg(struct ice_port_info *p, struct ethtool_link_ksettings *ks,
		  struct ice_aqc_set_phy_cfg_data *config,
		  u8 autoneg_enabled, u8 *autoneg_changed,
		  struct net_device *netdev)
{
	int err = 0;

	*autoneg_changed = 0;

	/* Check autoneg */
	if (autoneg_enabled == AUTONEG_ENABLE) {
		/* If autoneg was not already enabled */
		if (!(p->phy.link_info.an_info & ICE_AQ_AN_COMPLETED)) {
			/* If autoneg is not supported, return error */
			if (!ethtool_link_ksettings_test_link_mode(ks,
								   supported,
								   Autoneg)) {
				netdev_info(netdev, "Autoneg not supported on this phy.\n");
				err = -EINVAL;
			} else {
				/* Autoneg is allowed to change */
				config->caps |= ICE_AQ_PHY_ENA_AUTO_LINK_UPDT;
				*autoneg_changed = 1;
			}
		}
	} else {
		/* If autoneg is currently enabled */
		if (p->phy.link_info.an_info & ICE_AQ_AN_COMPLETED) {
			/* If autoneg is supported 10GBASE_T is the only phy
			 * that can disable it, so otherwise return error
			 */
			if (ethtool_link_ksettings_test_link_mode(ks,
								  supported,
								  Autoneg)) {
				netdev_info(netdev, "Autoneg cannot be disabled on this phy\n");
				err = -EINVAL;
			} else {
				/* Autoneg is allowed to change */
				config->caps &= ~ICE_AQ_PHY_ENA_AUTO_LINK_UPDT;
				*autoneg_changed = 1;
			}
		}
	}

	return err;
}

/**
 * ice_set_link_ksettings - Set Speed and Duplex
 * @netdev: network interface device structure
 * @ks: ethtool ksettings
 *
 * Set speed/duplex per media_types advertised/forced
 */
static int ice_set_link_ksettings(struct net_device *netdev,
				  const struct ethtool_link_ksettings *ks)
{
	u8 autoneg, timeout = TEST_SET_BITS_TIMEOUT, lport = 0;
	struct ice_netdev_priv *np = netdev_priv(netdev);
	struct ethtool_link_ksettings safe_ks, copy_ks;
	struct ice_aqc_get_phy_caps_data *abilities;
	u16 adv_link_speed, curr_link_speed, idx;
	struct ice_aqc_set_phy_cfg_data config;
	struct ice_pf *pf = np->vsi->back;
	struct ice_port_info *p;
	u8 autoneg_changed = 0;
	enum ice_status status;
	u64 phy_type_low;
	int err = 0;
	bool linkup;

	p = np->vsi->port_info;

	if (!p)
		return -EOPNOTSUPP;

	/* Check if this is lan vsi */
	for (idx = 0 ; idx <  pf->num_alloc_vsi ; idx++) {
		if (pf->vsi[idx]->type == ICE_VSI_PF) {
			if (np->vsi != pf->vsi[idx])
				return -EOPNOTSUPP;
			break;
		}
	}

	if (p->phy.media_type != ICE_MEDIA_BASET &&
	    p->phy.media_type != ICE_MEDIA_FIBER &&
	    p->phy.media_type != ICE_MEDIA_BACKPLANE &&
	    p->phy.media_type != ICE_MEDIA_DA &&
	    p->phy.link_info.link_info & ICE_AQ_LINK_UP)
		return -EOPNOTSUPP;

	/* copy the ksettings to copy_ks to avoid modifying the original */
	memcpy(&copy_ks, ks, sizeof(struct ethtool_link_ksettings));

	/* save autoneg out of ksettings */
	autoneg = copy_ks.base.autoneg;

	memset(&safe_ks, 0, sizeof(safe_ks));

	/* Get link modes supported by hardware.*/
	ice_phy_type_to_ethtool(netdev, &safe_ks);

	/* and check against modes requested by user.
	 * Return an error if unsupported mode was set.
	 */
	if (!bitmap_subset(copy_ks.link_modes.advertising,
			   safe_ks.link_modes.supported,
			   __ETHTOOL_LINK_MODE_MASK_NBITS))
		return -EINVAL;

	/* get our own copy of the bits to check against */
	memset(&safe_ks, 0, sizeof(struct ethtool_link_ksettings));
	safe_ks.base.cmd = copy_ks.base.cmd;
	safe_ks.base.link_mode_masks_nwords =
		copy_ks.base.link_mode_masks_nwords;
	ice_get_link_ksettings(netdev, &safe_ks);

	/* set autoneg back to what it currently is */
	copy_ks.base.autoneg = safe_ks.base.autoneg;
	/* we don't compare the speed */
	copy_ks.base.speed = safe_ks.base.speed;

	/* If copy_ks.base and safe_ks.base are not the same now, then they are
	 * trying to set something that we do not support.
	 */
	if (memcmp(&copy_ks.base, &safe_ks.base,
		   sizeof(struct ethtool_link_settings)))
		return -EOPNOTSUPP;

	while (test_and_set_bit(__ICE_CFG_BUSY, pf->state)) {
		timeout--;
		if (!timeout)
			return -EBUSY;
		usleep_range(TEST_SET_BITS_SLEEP_MIN, TEST_SET_BITS_SLEEP_MAX);
	}

	abilities = devm_kzalloc(&pf->pdev->dev, sizeof(*abilities),
				 GFP_KERNEL);
	if (!abilities)
		return -ENOMEM;

	/* Get the current phy config */
	status = ice_aq_get_phy_caps(p, false, ICE_AQC_REPORT_SW_CFG, abilities,
				     NULL);
	if (status) {
		err = -EAGAIN;
		goto done;
	}

	/* Copy abilities to config in case autoneg is not set below */
	memset(&config, 0, sizeof(struct ice_aqc_set_phy_cfg_data));
	config.caps = abilities->caps & ~ICE_AQC_PHY_AN_MODE;
	if (abilities->caps & ICE_AQC_PHY_AN_MODE)
		config.caps |= ICE_AQ_PHY_ENA_AUTO_LINK_UPDT;

	/* Check autoneg */
	err = ice_setup_autoneg(p, &safe_ks, &config, autoneg, &autoneg_changed,
				netdev);

	if (err)
		goto done;

	/* Call to get the current link speed */
	p->phy.get_link_info = true;
	status = ice_get_link_status(p, &linkup);
	if (status) {
		err = -EAGAIN;
		goto done;
	}

	curr_link_speed = p->phy.link_info.link_speed;
	adv_link_speed = ice_ksettings_find_adv_link_speed(ks);

	/* If speed didn't get set, set it to what it currently is.
	 * This is needed because if advertise is 0 (as it is when autoneg
	 * is disabled) then speed won't get set.
	 */
	if (!adv_link_speed)
		adv_link_speed = curr_link_speed;

	/* Convert the advertise link speeds to their corresponded PHY_TYPE */
	ice_update_phy_type(&phy_type_low, adv_link_speed);

	if (!autoneg_changed && adv_link_speed == curr_link_speed) {
		netdev_info(netdev, "Nothing changed, exiting without setting anything.\n");
		goto done;
	}

	/* copy over the rest of the abilities */
	config.low_power_ctrl = abilities->low_power_ctrl;
	config.eee_cap = abilities->eee_cap;
	config.eeer_value = abilities->eeer_value;
	config.link_fec_opt = abilities->link_fec_options;

	/* save the requested speeds */
	p->phy.link_info.req_speeds = adv_link_speed;

	/* set link and auto negotiation so changes take effect */
	config.caps |= ICE_AQ_PHY_ENA_LINK;

	if (phy_type_low) {
		config.phy_type_low = cpu_to_le64(phy_type_low) &
			abilities->phy_type_low;
	} else {
		err = -EAGAIN;
		netdev_info(netdev, "Nothing changed. No PHY_TYPE is corresponded to advertised link speed.\n");
		goto done;
	}

	/* If link is up put link down */
	if (p->phy.link_info.link_info & ICE_AQ_LINK_UP) {
		/* Tell the OS link is going down, the link will go
		 * back up when fw says it is ready asynchronously
		 */
		ice_print_link_msg(np->vsi, false);
		netif_carrier_off(netdev);
		netif_tx_stop_all_queues(netdev);
	}

	/* make the aq call */
	status = ice_aq_set_phy_cfg(&pf->hw, lport, &config, NULL);
	if (status) {
		netdev_info(netdev, "Set phy config failed,\n");
		err = -EAGAIN;
	}

done:
	devm_kfree(&pf->pdev->dev, abilities);
	clear_bit(__ICE_CFG_BUSY, pf->state);

	return err;
}

/**
 * ice_get_rxnfc - command to get RX flow classification rules
 * @netdev: network interface device structure
 * @cmd: ethtool rxnfc command
 * @rule_locs: buffer to rturn Rx flow classification rules
 *
 * Returns Success if the command is supported.
 */
static int ice_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd,
			 u32 __always_unused *rule_locs)
{
	struct ice_netdev_priv *np = netdev_priv(netdev);
	struct ice_vsi *vsi = np->vsi;
	int ret = -EOPNOTSUPP;

	switch (cmd->cmd) {
	case ETHTOOL_GRXRINGS:
		cmd->data = vsi->rss_size;
		ret = 0;
		break;
	default:
		break;
	}

	return ret;
}

static void
ice_get_ringparam(struct net_device *netdev, struct ethtool_ringparam *ring)
{
	struct ice_netdev_priv *np = netdev_priv(netdev);
	struct ice_vsi *vsi = np->vsi;

	ring->rx_max_pending = ICE_MAX_NUM_DESC;
	ring->tx_max_pending = ICE_MAX_NUM_DESC;
	ring->rx_pending = vsi->rx_rings[0]->count;
	ring->tx_pending = vsi->tx_rings[0]->count;

	/* Rx mini and jumbo rings are not supported */
	ring->rx_mini_max_pending = 0;
	ring->rx_jumbo_max_pending = 0;
	ring->rx_mini_pending = 0;
	ring->rx_jumbo_pending = 0;
}

static int
ice_set_ringparam(struct net_device *netdev, struct ethtool_ringparam *ring)
{
	struct ice_ring *tx_rings = NULL, *rx_rings = NULL;
	struct ice_netdev_priv *np = netdev_priv(netdev);
	struct ice_vsi *vsi = np->vsi;
	struct ice_pf *pf = vsi->back;
	int i, timeout = 50, err = 0;
	u32 new_rx_cnt, new_tx_cnt;

	if (ring->tx_pending > ICE_MAX_NUM_DESC ||
	    ring->tx_pending < ICE_MIN_NUM_DESC ||
	    ring->rx_pending > ICE_MAX_NUM_DESC ||
	    ring->rx_pending < ICE_MIN_NUM_DESC) {
		netdev_err(netdev, "Descriptors requested (Tx: %d / Rx: %d) out of range [%d-%d] (increment %d)\n",
			   ring->tx_pending, ring->rx_pending,
			   ICE_MIN_NUM_DESC, ICE_MAX_NUM_DESC,
			   ICE_REQ_DESC_MULTIPLE);
		return -EINVAL;
	}

	new_tx_cnt = ALIGN(ring->tx_pending, ICE_REQ_DESC_MULTIPLE);
	if (new_tx_cnt != ring->tx_pending)
		netdev_info(netdev,
			    "Requested Tx descriptor count rounded up to %d\n",
			    new_tx_cnt);
	new_rx_cnt = ALIGN(ring->rx_pending, ICE_REQ_DESC_MULTIPLE);
	if (new_rx_cnt != ring->rx_pending)
		netdev_info(netdev,
			    "Requested Rx descriptor count rounded up to %d\n",
			    new_rx_cnt);

	/* if nothing to do return success */
	if (new_tx_cnt == vsi->tx_rings[0]->count &&
	    new_rx_cnt == vsi->rx_rings[0]->count) {
		netdev_dbg(netdev, "Nothing to change, descriptor count is same as requested\n");
		return 0;
	}

	while (test_and_set_bit(__ICE_CFG_BUSY, pf->state)) {
		timeout--;
		if (!timeout)
			return -EBUSY;
		usleep_range(1000, 2000);
	}

	/* set for the next time the netdev is started */
	if (!netif_running(vsi->netdev)) {
		for (i = 0; i < vsi->alloc_txq; i++)
			vsi->tx_rings[i]->count = new_tx_cnt;
		for (i = 0; i < vsi->alloc_rxq; i++)
			vsi->rx_rings[i]->count = new_rx_cnt;
		netdev_dbg(netdev, "Link is down, descriptor count change happens when link is brought up\n");
		goto done;
	}

	if (new_tx_cnt == vsi->tx_rings[0]->count)
		goto process_rx;

	/* alloc updated Tx resources */
	netdev_info(netdev, "Changing Tx descriptor count from %d to %d\n",
		    vsi->tx_rings[0]->count, new_tx_cnt);

	tx_rings = devm_kcalloc(&pf->pdev->dev, vsi->alloc_txq,
				sizeof(struct ice_ring), GFP_KERNEL);
	if (!tx_rings) {
		err = -ENOMEM;
		goto done;
	}

	for (i = 0; i < vsi->alloc_txq; i++) {
		/* clone ring and setup updated count */
		tx_rings[i] = *vsi->tx_rings[i];
		tx_rings[i].count = new_tx_cnt;
		tx_rings[i].desc = NULL;
		tx_rings[i].tx_buf = NULL;
		err = ice_setup_tx_ring(&tx_rings[i]);
		if (err) {
			while (i) {
				i--;
				ice_clean_tx_ring(&tx_rings[i]);
			}
			devm_kfree(&pf->pdev->dev, tx_rings);
			goto done;
		}
	}

process_rx:
	if (new_rx_cnt == vsi->rx_rings[0]->count)
		goto process_link;

	/* alloc updated Rx resources */
	netdev_info(netdev, "Changing Rx descriptor count from %d to %d\n",
		    vsi->rx_rings[0]->count, new_rx_cnt);

	rx_rings = devm_kcalloc(&pf->pdev->dev, vsi->alloc_rxq,
				sizeof(struct ice_ring), GFP_KERNEL);
	if (!rx_rings) {
		err = -ENOMEM;
		goto done;
	}

	for (i = 0; i < vsi->alloc_rxq; i++) {
		/* clone ring and setup updated count */
		rx_rings[i] = *vsi->rx_rings[i];
		rx_rings[i].count = new_rx_cnt;
		rx_rings[i].desc = NULL;
		rx_rings[i].rx_buf = NULL;
		/* this is to allow wr32 to have something to write to
		 * during early allocation of Rx buffers
		 */
		rx_rings[i].tail = vsi->back->hw.hw_addr + PRTGEN_STATUS;

		err = ice_setup_rx_ring(&rx_rings[i]);
		if (err)
			goto rx_unwind;

		/* allocate Rx buffers */
		err = ice_alloc_rx_bufs(&rx_rings[i],
					ICE_DESC_UNUSED(&rx_rings[i]));
rx_unwind:
		if (err) {
			while (i) {
				i--;
				ice_free_rx_ring(&rx_rings[i]);
			}
			devm_kfree(&pf->pdev->dev, rx_rings);
			err = -ENOMEM;
			goto free_tx;
		}
	}

process_link:
	/* Bring interface down, copy in the new ring info, then restore the
	 * interface. if VSI is up, bring it down and then back up
	 */
	if (!test_and_set_bit(__ICE_DOWN, vsi->state)) {
		ice_down(vsi);

		if (tx_rings) {
			for (i = 0; i < vsi->alloc_txq; i++) {
				ice_free_tx_ring(vsi->tx_rings[i]);
				*vsi->tx_rings[i] = tx_rings[i];
			}
			devm_kfree(&pf->pdev->dev, tx_rings);
		}

		if (rx_rings) {
			for (i = 0; i < vsi->alloc_rxq; i++) {
				ice_free_rx_ring(vsi->rx_rings[i]);
				/* copy the real tail offset */
				rx_rings[i].tail = vsi->rx_rings[i]->tail;
				/* this is to fake out the allocation routine
				 * into thinking it has to realloc everything
				 * but the recycling logic will let us re-use
				 * the buffers allocated above
				 */
				rx_rings[i].next_to_use = 0;
				rx_rings[i].next_to_clean = 0;
				rx_rings[i].next_to_alloc = 0;
				*vsi->rx_rings[i] = rx_rings[i];
			}
			devm_kfree(&pf->pdev->dev, rx_rings);
		}

		ice_up(vsi);
	}
	goto done;

free_tx:
	/* error cleanup if the Rx allocations failed after getting Tx */
	if (tx_rings) {
		for (i = 0; i < vsi->alloc_txq; i++)
			ice_free_tx_ring(&tx_rings[i]);
		devm_kfree(&pf->pdev->dev, tx_rings);
	}

done:
	clear_bit(__ICE_CFG_BUSY, pf->state);
	return err;
}

static int ice_nway_reset(struct net_device *netdev)
{
	/* restart autonegotiation */
	struct ice_netdev_priv *np = netdev_priv(netdev);
	struct ice_link_status *hw_link_info;
	struct ice_vsi *vsi = np->vsi;
	struct ice_port_info *pi;
	enum ice_status status;
	bool link_up;

	pi = vsi->port_info;
	hw_link_info = &pi->phy.link_info;
	link_up = hw_link_info->link_info & ICE_AQ_LINK_UP;

	status = ice_aq_set_link_restart_an(pi, link_up, NULL);
	if (status) {
		netdev_info(netdev, "link restart failed, err %d aq_err %d\n",
			    status, pi->hw->adminq.sq_last_status);
		return -EIO;
	}

	return 0;
}

/**
 * ice_get_pauseparam - Get Flow Control status
 * @netdev: network interface device structure
 * @pause: ethernet pause (flow control) parameters
 */
static void
ice_get_pauseparam(struct net_device *netdev, struct ethtool_pauseparam *pause)
{
	struct ice_netdev_priv *np = netdev_priv(netdev);
	struct ice_port_info *pi;

	pi = np->vsi->port_info;
	pause->autoneg =
		((pi->phy.link_info.an_info & ICE_AQ_AN_COMPLETED) ?
		 AUTONEG_ENABLE : AUTONEG_DISABLE);

	if (pi->fc.current_mode == ICE_FC_RX_PAUSE) {
		pause->rx_pause = 1;
	} else if (pi->fc.current_mode == ICE_FC_TX_PAUSE) {
		pause->tx_pause = 1;
	} else if (pi->fc.current_mode == ICE_FC_FULL) {
		pause->rx_pause = 1;
		pause->tx_pause = 1;
	}
}

/**
 * ice_set_pauseparam - Set Flow Control parameter
 * @netdev: network interface device structure
 * @pause: return tx/rx flow control status
 */
static int
ice_set_pauseparam(struct net_device *netdev, struct ethtool_pauseparam *pause)
{
	struct ice_netdev_priv *np = netdev_priv(netdev);
	struct ice_link_status *hw_link_info;
	struct ice_pf *pf = np->vsi->back;
	struct ice_vsi *vsi = np->vsi;
	struct ice_hw *hw = &pf->hw;
	struct ice_port_info *pi;
	enum ice_status status;
	u8 aq_failures;
	bool link_up;
	int err = 0;

	pi = vsi->port_info;
	hw_link_info = &pi->phy.link_info;
	link_up = hw_link_info->link_info & ICE_AQ_LINK_UP;

	/* Changing the port's flow control is not supported if this isn't the
	 * PF VSI
	 */
	if (vsi->type != ICE_VSI_PF) {
		netdev_info(netdev, "Changing flow control parameters only supported for PF VSI\n");
		return -EOPNOTSUPP;
	}

	if (pause->autoneg != (hw_link_info->an_info & ICE_AQ_AN_COMPLETED)) {
		netdev_info(netdev, "To change autoneg please use: ethtool -s <dev> autoneg <on|off>\n");
		return -EOPNOTSUPP;
	}

	/* If we have link and don't have autoneg */
	if (!test_bit(__ICE_DOWN, pf->state) &&
	    !(hw_link_info->an_info & ICE_AQ_AN_COMPLETED)) {
		/* Send message that it might not necessarily work*/
		netdev_info(netdev, "Autoneg did not complete so changing settings may not result in an actual change.\n");
	}

	if (pause->rx_pause && pause->tx_pause)
		pi->fc.req_mode = ICE_FC_FULL;
	else if (pause->rx_pause && !pause->tx_pause)
		pi->fc.req_mode = ICE_FC_RX_PAUSE;
	else if (!pause->rx_pause && pause->tx_pause)
		pi->fc.req_mode = ICE_FC_TX_PAUSE;
	else if (!pause->rx_pause && !pause->tx_pause)
		pi->fc.req_mode = ICE_FC_NONE;
	else
		return -EINVAL;

	/* Tell the OS link is going down, the link will go back up when fw
	 * says it is ready asynchronously
	 */
	ice_print_link_msg(vsi, false);
	netif_carrier_off(netdev);
	netif_tx_stop_all_queues(netdev);

	/* Set the FC mode and only restart AN if link is up */
	status = ice_set_fc(pi, &aq_failures, link_up);

	if (aq_failures & ICE_SET_FC_AQ_FAIL_GET) {
		netdev_info(netdev, "Set fc failed on the get_phy_capabilities call with err %d aq_err %d\n",
			    status, hw->adminq.sq_last_status);
		err = -EAGAIN;
	} else if (aq_failures & ICE_SET_FC_AQ_FAIL_SET) {
		netdev_info(netdev, "Set fc failed on the set_phy_config call with err %d aq_err %d\n",
			    status, hw->adminq.sq_last_status);
		err = -EAGAIN;
	} else if (aq_failures & ICE_SET_FC_AQ_FAIL_UPDATE) {
		netdev_info(netdev, "Set fc failed on the get_link_info call with err %d aq_err %d\n",
			    status, hw->adminq.sq_last_status);
		err = -EAGAIN;
	}

	if (!test_bit(__ICE_DOWN, pf->state)) {
		/* Give it a little more time to try to come back */
		msleep(75);
		if (!test_bit(__ICE_DOWN, pf->state))
			return ice_nway_reset(netdev);
	}

	return err;
}

/**
 * ice_get_rxfh_key_size - get the RSS hash key size
 * @netdev: network interface device structure
 *
 * Returns the table size.
 */
static u32 ice_get_rxfh_key_size(struct net_device __always_unused *netdev)
{
	return ICE_VSIQF_HKEY_ARRAY_SIZE;
}

/**
 * ice_get_rxfh_indir_size - get the rx flow hash indirection table size
 * @netdev: network interface device structure
 *
 * Returns the table size.
 */
static u32 ice_get_rxfh_indir_size(struct net_device *netdev)
{
	struct ice_netdev_priv *np = netdev_priv(netdev);

	return np->vsi->rss_table_size;
}

/**
 * ice_get_rxfh - get the rx flow hash indirection table
 * @netdev: network interface device structure
 * @indir: indirection table
 * @key: hash key
 * @hfunc: hash function
 *
 * Reads the indirection table directly from the hardware.
 */
static int
ice_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key, u8 *hfunc)
{
	struct ice_netdev_priv *np = netdev_priv(netdev);
	struct ice_vsi *vsi = np->vsi;
	struct ice_pf *pf = vsi->back;
	int ret = 0, i;
	u8 *lut;

	if (hfunc)
		*hfunc = ETH_RSS_HASH_TOP;

	if (!indir)
		return 0;

	if (!test_bit(ICE_FLAG_RSS_ENA, pf->flags)) {
		/* RSS not supported return error here */
		netdev_warn(netdev, "RSS is not configured on this VSI!\n");
		return -EIO;
	}

	lut = devm_kzalloc(&pf->pdev->dev, vsi->rss_table_size, GFP_KERNEL);
	if (!lut)
		return -ENOMEM;

	if (ice_get_rss(vsi, key, lut, vsi->rss_table_size)) {
		ret = -EIO;
		goto out;
	}

	for (i = 0; i < vsi->rss_table_size; i++)
		indir[i] = (u32)(lut[i]);

out:
	devm_kfree(&pf->pdev->dev, lut);
	return ret;
}

/**
 * ice_set_rxfh - set the rx flow hash indirection table
 * @netdev: network interface device structure
 * @indir: indirection table
 * @key: hash key
 * @hfunc: hash function
 *
 * Returns -EINVAL if the table specifies an invalid queue id, otherwise
 * returns 0 after programming the table.
 */
static int ice_set_rxfh(struct net_device *netdev, const u32 *indir,
			const u8 *key, const u8 hfunc)
{
	struct ice_netdev_priv *np = netdev_priv(netdev);
	struct ice_vsi *vsi = np->vsi;
	struct ice_pf *pf = vsi->back;
	u8 *seed = NULL;

	if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)
		return -EOPNOTSUPP;

	if (!test_bit(ICE_FLAG_RSS_ENA, pf->flags)) {
		/* RSS not supported return error here */
		netdev_warn(netdev, "RSS is not configured on this VSI!\n");
		return -EIO;
	}

	if (key) {
		if (!vsi->rss_hkey_user) {
			vsi->rss_hkey_user =
				devm_kzalloc(&pf->pdev->dev,
					     ICE_VSIQF_HKEY_ARRAY_SIZE,
					     GFP_KERNEL);
			if (!vsi->rss_hkey_user)
				return -ENOMEM;
		}
		memcpy(vsi->rss_hkey_user, key, ICE_VSIQF_HKEY_ARRAY_SIZE);
		seed = vsi->rss_hkey_user;
	}

	if (!vsi->rss_lut_user) {
		vsi->rss_lut_user = devm_kzalloc(&pf->pdev->dev,
						 vsi->rss_table_size,
						 GFP_KERNEL);
		if (!vsi->rss_lut_user)
			return -ENOMEM;
	}

	/* Each 32 bits pointed by 'indir' is stored with a lut entry */
	if (indir) {
		int i;

		for (i = 0; i < vsi->rss_table_size; i++)
			vsi->rss_lut_user[i] = (u8)(indir[i]);
	} else {
		ice_fill_rss_lut(vsi->rss_lut_user, vsi->rss_table_size,
				 vsi->rss_size);
	}

	if (ice_set_rss(vsi, seed, vsi->rss_lut_user, vsi->rss_table_size))
		return -EIO;

	return 0;
}

static const struct ethtool_ops ice_ethtool_ops = {
	.get_link_ksettings	= ice_get_link_ksettings,
	.set_link_ksettings	= ice_set_link_ksettings,
	.get_drvinfo            = ice_get_drvinfo,
	.get_regs_len           = ice_get_regs_len,
	.get_regs               = ice_get_regs,
	.get_msglevel           = ice_get_msglevel,
	.set_msglevel           = ice_set_msglevel,
	.get_link		= ethtool_op_get_link,
	.get_strings		= ice_get_strings,
	.get_ethtool_stats      = ice_get_ethtool_stats,
	.get_sset_count		= ice_get_sset_count,
	.get_rxnfc		= ice_get_rxnfc,
	.get_ringparam		= ice_get_ringparam,
	.set_ringparam		= ice_set_ringparam,
	.nway_reset		= ice_nway_reset,
	.get_pauseparam		= ice_get_pauseparam,
	.set_pauseparam		= ice_set_pauseparam,
	.get_rxfh_key_size	= ice_get_rxfh_key_size,
	.get_rxfh_indir_size	= ice_get_rxfh_indir_size,
	.get_rxfh		= ice_get_rxfh,
	.set_rxfh		= ice_set_rxfh,
};

/**
 * ice_set_ethtool_ops - setup netdev ethtool ops
 * @netdev: network interface device structure
 *
 * setup netdev ethtool ops with ice specific ops
 */
void ice_set_ethtool_ops(struct net_device *netdev)
{
	netdev->ethtool_ops = &ice_ethtool_ops;
}