Contributors: 13
Author Tokens Token Proportion Commits Commit Proportion
Dmitry Bogdanov 904 22.79% 3 10.71%
David VomLehn 811 20.44% 1 3.57%
Igor Russkikh 752 18.96% 6 21.43%
Yana Esina 483 12.18% 2 7.14%
Nikita Danilov 479 12.07% 7 25.00%
Anton Mikaev 377 9.50% 2 7.14%
Egor Pomozov 124 3.13% 1 3.57%
Philippe Reynes 23 0.58% 1 3.57%
Jakub Kiciński 7 0.18% 1 3.57%
Wei Yongjun 2 0.05% 1 3.57%
zhengbin 2 0.05% 1 3.57%
Petr Machata 2 0.05% 1 3.57%
Thomas Gleixner 1 0.03% 1 3.57%
Total 3967 28 


// SPDX-License-Identifier: GPL-2.0-only
/*
 * aQuantia Corporation Network Driver
 * Copyright (C) 2014-2019 aQuantia Corporation. All rights reserved
 */

/* File aq_ethtool.c: Definition of ethertool related functions. */

#include "aq_ethtool.h"
#include "aq_nic.h"
#include "aq_vec.h"
#include "aq_ptp.h"
#include "aq_filters.h"
#include "aq_macsec.h"

#include <linux/ptp_clock_kernel.h>

static void aq_ethtool_get_regs(struct net_device *ndev,
				struct ethtool_regs *regs, void *p)
{
	struct aq_nic_s *aq_nic = netdev_priv(ndev);
	u32 regs_count;

	regs_count = aq_nic_get_regs_count(aq_nic);

	memset(p, 0, regs_count * sizeof(u32));
	aq_nic_get_regs(aq_nic, regs, p);
}

static int aq_ethtool_get_regs_len(struct net_device *ndev)
{
	struct aq_nic_s *aq_nic = netdev_priv(ndev);
	u32 regs_count;

	regs_count = aq_nic_get_regs_count(aq_nic);

	return regs_count * sizeof(u32);
}

static u32 aq_ethtool_get_link(struct net_device *ndev)
{
	return ethtool_op_get_link(ndev);
}

static int aq_ethtool_get_link_ksettings(struct net_device *ndev,
					 struct ethtool_link_ksettings *cmd)
{
	struct aq_nic_s *aq_nic = netdev_priv(ndev);

	aq_nic_get_link_ksettings(aq_nic, cmd);
	cmd->base.speed = netif_carrier_ok(ndev) ?
				aq_nic_get_link_speed(aq_nic) : 0U;

	return 0;
}

static int
aq_ethtool_set_link_ksettings(struct net_device *ndev,
			      const struct ethtool_link_ksettings *cmd)
{
	struct aq_nic_s *aq_nic = netdev_priv(ndev);

	return aq_nic_set_link_ksettings(aq_nic, cmd);
}

static const char aq_ethtool_stat_names[][ETH_GSTRING_LEN] = {
	"InPackets",
	"InUCast",
	"InMCast",
	"InBCast",
	"InErrors",
	"OutPackets",
	"OutUCast",
	"OutMCast",
	"OutBCast",
	"InUCastOctets",
	"OutUCastOctets",
	"InMCastOctets",
	"OutMCastOctets",
	"InBCastOctets",
	"OutBCastOctets",
	"InOctets",
	"OutOctets",
	"InPacketsDma",
	"OutPacketsDma",
	"InOctetsDma",
	"OutOctetsDma",
	"InDroppedDma",
};

static const char aq_ethtool_queue_stat_names[][ETH_GSTRING_LEN] = {
	"Queue[%d] InPackets",
	"Queue[%d] OutPackets",
	"Queue[%d] Restarts",
	"Queue[%d] InJumboPackets",
	"Queue[%d] InLroPackets",
	"Queue[%d] InErrors",
};

#if IS_ENABLED(CONFIG_MACSEC)
static const char aq_macsec_stat_names[][ETH_GSTRING_LEN] = {
	"MACSec InCtlPackets",
	"MACSec InTaggedMissPackets",
	"MACSec InUntaggedMissPackets",
	"MACSec InNotagPackets",
	"MACSec InUntaggedPackets",
	"MACSec InBadTagPackets",
	"MACSec InNoSciPackets",
	"MACSec InUnknownSciPackets",
	"MACSec InCtrlPortPassPackets",
	"MACSec InUnctrlPortPassPackets",
	"MACSec InCtrlPortFailPackets",
	"MACSec InUnctrlPortFailPackets",
	"MACSec InTooLongPackets",
	"MACSec InIgpocCtlPackets",
	"MACSec InEccErrorPackets",
	"MACSec InUnctrlHitDropRedir",
	"MACSec OutCtlPackets",
	"MACSec OutUnknownSaPackets",
	"MACSec OutUntaggedPackets",
	"MACSec OutTooLong",
	"MACSec OutEccErrorPackets",
	"MACSec OutUnctrlHitDropRedir",
};

static const char *aq_macsec_txsc_stat_names[] = {
	"MACSecTXSC%d ProtectedPkts",
	"MACSecTXSC%d EncryptedPkts",
	"MACSecTXSC%d ProtectedOctets",
	"MACSecTXSC%d EncryptedOctets",
};

static const char *aq_macsec_txsa_stat_names[] = {
	"MACSecTXSC%dSA%d HitDropRedirect",
	"MACSecTXSC%dSA%d Protected2Pkts",
	"MACSecTXSC%dSA%d ProtectedPkts",
	"MACSecTXSC%dSA%d EncryptedPkts",
};

static const char *aq_macsec_rxsa_stat_names[] = {
	"MACSecRXSC%dSA%d UntaggedHitPkts",
	"MACSecRXSC%dSA%d CtrlHitDrpRedir",
	"MACSecRXSC%dSA%d NotUsingSa",
	"MACSecRXSC%dSA%d UnusedSa",
	"MACSecRXSC%dSA%d NotValidPkts",
	"MACSecRXSC%dSA%d InvalidPkts",
	"MACSecRXSC%dSA%d OkPkts",
	"MACSecRXSC%dSA%d LatePkts",
	"MACSecRXSC%dSA%d DelayedPkts",
	"MACSecRXSC%dSA%d UncheckedPkts",
	"MACSecRXSC%dSA%d ValidatedOctets",
	"MACSecRXSC%dSA%d DecryptedOctets",
};
#endif

static const char aq_ethtool_priv_flag_names[][ETH_GSTRING_LEN] = {
	"DMASystemLoopback",
	"PKTSystemLoopback",
	"DMANetworkLoopback",
	"PHYInternalLoopback",
	"PHYExternalLoopback",
};

static u32 aq_ethtool_n_stats(struct net_device *ndev)
{
	struct aq_nic_s *nic = netdev_priv(ndev);
	struct aq_nic_cfg_s *cfg = aq_nic_get_cfg(nic);
	u32 n_stats = ARRAY_SIZE(aq_ethtool_stat_names) +
		      ARRAY_SIZE(aq_ethtool_queue_stat_names) * cfg->vecs;

#if IS_ENABLED(CONFIG_MACSEC)
	if (nic->macsec_cfg) {
		n_stats += ARRAY_SIZE(aq_macsec_stat_names) +
			   ARRAY_SIZE(aq_macsec_txsc_stat_names) *
				   aq_macsec_tx_sc_cnt(nic) +
			   ARRAY_SIZE(aq_macsec_txsa_stat_names) *
				   aq_macsec_tx_sa_cnt(nic) +
			   ARRAY_SIZE(aq_macsec_rxsa_stat_names) *
				   aq_macsec_rx_sa_cnt(nic);
	}
#endif

	return n_stats;
}

static void aq_ethtool_stats(struct net_device *ndev,
			     struct ethtool_stats *stats, u64 *data)
{
	struct aq_nic_s *aq_nic = netdev_priv(ndev);

	memset(data, 0, aq_ethtool_n_stats(ndev) * sizeof(u64));
	data = aq_nic_get_stats(aq_nic, data);
#if IS_ENABLED(CONFIG_MACSEC)
	data = aq_macsec_get_stats(aq_nic, data);
#endif
}

static void aq_ethtool_get_drvinfo(struct net_device *ndev,
				   struct ethtool_drvinfo *drvinfo)
{
	struct pci_dev *pdev = to_pci_dev(ndev->dev.parent);
	struct aq_nic_s *aq_nic = netdev_priv(ndev);
	u32 firmware_version;
	u32 regs_count;

	firmware_version = aq_nic_get_fw_version(aq_nic);
	regs_count = aq_nic_get_regs_count(aq_nic);

	strlcat(drvinfo->driver, AQ_CFG_DRV_NAME, sizeof(drvinfo->driver));

	snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
		 "%u.%u.%u", firmware_version >> 24,
		 (firmware_version >> 16) & 0xFFU, firmware_version & 0xFFFFU);

	strlcpy(drvinfo->bus_info, pdev ? pci_name(pdev) : "",
		sizeof(drvinfo->bus_info));
	drvinfo->n_stats = aq_ethtool_n_stats(ndev);
	drvinfo->testinfo_len = 0;
	drvinfo->regdump_len = regs_count;
	drvinfo->eedump_len = 0;
}

static void aq_ethtool_get_strings(struct net_device *ndev,
				   u32 stringset, u8 *data)
{
	struct aq_nic_s *aq_nic = netdev_priv(ndev);
	struct aq_nic_cfg_s *cfg;
	u8 *p = data;
	int i, si;
#if IS_ENABLED(CONFIG_MACSEC)
	int sa;
#endif

	cfg = aq_nic_get_cfg(aq_nic);

	switch (stringset) {
	case ETH_SS_STATS:
		memcpy(p, aq_ethtool_stat_names,
		       sizeof(aq_ethtool_stat_names));
		p = p + sizeof(aq_ethtool_stat_names);
		for (i = 0; i < cfg->vecs; i++) {
			for (si = 0;
				si < ARRAY_SIZE(aq_ethtool_queue_stat_names);
				si++) {
				snprintf(p, ETH_GSTRING_LEN,
					 aq_ethtool_queue_stat_names[si], i);
				p += ETH_GSTRING_LEN;
			}
		}
#if IS_ENABLED(CONFIG_MACSEC)
		if (!aq_nic->macsec_cfg)
			break;

		memcpy(p, aq_macsec_stat_names, sizeof(aq_macsec_stat_names));
		p = p + sizeof(aq_macsec_stat_names);
		for (i = 0; i < AQ_MACSEC_MAX_SC; i++) {
			struct aq_macsec_txsc *aq_txsc;

			if (!(test_bit(i, &aq_nic->macsec_cfg->txsc_idx_busy)))
				continue;

			for (si = 0;
				si < ARRAY_SIZE(aq_macsec_txsc_stat_names);
				si++) {
				snprintf(p, ETH_GSTRING_LEN,
					 aq_macsec_txsc_stat_names[si], i);
				p += ETH_GSTRING_LEN;
			}
			aq_txsc = &aq_nic->macsec_cfg->aq_txsc[i];
			for (sa = 0; sa < MACSEC_NUM_AN; sa++) {
				if (!(test_bit(sa, &aq_txsc->tx_sa_idx_busy)))
					continue;
				for (si = 0;
				     si < ARRAY_SIZE(aq_macsec_txsa_stat_names);
				     si++) {
					snprintf(p, ETH_GSTRING_LEN,
						 aq_macsec_txsa_stat_names[si],
						 i, sa);
					p += ETH_GSTRING_LEN;
				}
			}
		}
		for (i = 0; i < AQ_MACSEC_MAX_SC; i++) {
			struct aq_macsec_rxsc *aq_rxsc;

			if (!(test_bit(i, &aq_nic->macsec_cfg->rxsc_idx_busy)))
				continue;

			aq_rxsc = &aq_nic->macsec_cfg->aq_rxsc[i];
			for (sa = 0; sa < MACSEC_NUM_AN; sa++) {
				if (!(test_bit(sa, &aq_rxsc->rx_sa_idx_busy)))
					continue;
				for (si = 0;
				     si < ARRAY_SIZE(aq_macsec_rxsa_stat_names);
				     si++) {
					snprintf(p, ETH_GSTRING_LEN,
						 aq_macsec_rxsa_stat_names[si],
						 i, sa);
					p += ETH_GSTRING_LEN;
				}
			}
		}
#endif
		break;
	case ETH_SS_PRIV_FLAGS:
		memcpy(p, aq_ethtool_priv_flag_names,
		       sizeof(aq_ethtool_priv_flag_names));
		break;
	}
}

static int aq_ethtool_set_phys_id(struct net_device *ndev,
				  enum ethtool_phys_id_state state)
{
	struct aq_nic_s *aq_nic = netdev_priv(ndev);
	struct aq_hw_s *hw = aq_nic->aq_hw;
	int ret = 0;

	if (!aq_nic->aq_fw_ops->led_control)
		return -EOPNOTSUPP;

	mutex_lock(&aq_nic->fwreq_mutex);

	switch (state) {
	case ETHTOOL_ID_ACTIVE:
		ret = aq_nic->aq_fw_ops->led_control(hw, AQ_HW_LED_BLINK |
				 AQ_HW_LED_BLINK << 2 | AQ_HW_LED_BLINK << 4);
		break;
	case ETHTOOL_ID_INACTIVE:
		ret = aq_nic->aq_fw_ops->led_control(hw, AQ_HW_LED_DEFAULT);
		break;
	default:
		break;
	}

	mutex_unlock(&aq_nic->fwreq_mutex);

	return ret;
}

static int aq_ethtool_get_sset_count(struct net_device *ndev, int stringset)
{
	int ret = 0;

	switch (stringset) {
	case ETH_SS_STATS:
		ret = aq_ethtool_n_stats(ndev);
		break;
	case ETH_SS_PRIV_FLAGS:
		ret = ARRAY_SIZE(aq_ethtool_priv_flag_names);
		break;
	default:
		ret = -EOPNOTSUPP;
	}

	return ret;
}

static u32 aq_ethtool_get_rss_indir_size(struct net_device *ndev)
{
	return AQ_CFG_RSS_INDIRECTION_TABLE_MAX;
}

static u32 aq_ethtool_get_rss_key_size(struct net_device *ndev)
{
	struct aq_nic_s *aq_nic = netdev_priv(ndev);
	struct aq_nic_cfg_s *cfg;

	cfg = aq_nic_get_cfg(aq_nic);

	return sizeof(cfg->aq_rss.hash_secret_key);
}

static int aq_ethtool_get_rss(struct net_device *ndev, u32 *indir, u8 *key,
			      u8 *hfunc)
{
	struct aq_nic_s *aq_nic = netdev_priv(ndev);
	struct aq_nic_cfg_s *cfg;
	unsigned int i = 0U;

	cfg = aq_nic_get_cfg(aq_nic);

	if (hfunc)
		*hfunc = ETH_RSS_HASH_TOP; /* Toeplitz */
	if (indir) {
		for (i = 0; i < AQ_CFG_RSS_INDIRECTION_TABLE_MAX; i++)
			indir[i] = cfg->aq_rss.indirection_table[i];
	}
	if (key)
		memcpy(key, cfg->aq_rss.hash_secret_key,
		       sizeof(cfg->aq_rss.hash_secret_key));

	return 0;
}

static int aq_ethtool_set_rss(struct net_device *netdev, const u32 *indir,
			      const u8 *key, const u8 hfunc)
{
	struct aq_nic_s *aq_nic = netdev_priv(netdev);
	struct aq_nic_cfg_s *cfg;
	unsigned int i = 0U;
	u32 rss_entries;
	int err = 0;

	cfg = aq_nic_get_cfg(aq_nic);
	rss_entries = cfg->aq_rss.indirection_table_size;

	/* We do not allow change in unsupported parameters */
	if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)
		return -EOPNOTSUPP;
	/* Fill out the redirection table */
	if (indir)
		for (i = 0; i < rss_entries; i++)
			cfg->aq_rss.indirection_table[i] = indir[i];

	/* Fill out the rss hash key */
	if (key) {
		memcpy(cfg->aq_rss.hash_secret_key, key,
		       sizeof(cfg->aq_rss.hash_secret_key));
		err = aq_nic->aq_hw_ops->hw_rss_hash_set(aq_nic->aq_hw,
			&cfg->aq_rss);
		if (err)
			return err;
	}

	err = aq_nic->aq_hw_ops->hw_rss_set(aq_nic->aq_hw, &cfg->aq_rss);

	return err;
}

static int aq_ethtool_get_rxnfc(struct net_device *ndev,
				struct ethtool_rxnfc *cmd,
				u32 *rule_locs)
{
	struct aq_nic_s *aq_nic = netdev_priv(ndev);
	struct aq_nic_cfg_s *cfg;
	int err = 0;

	cfg = aq_nic_get_cfg(aq_nic);

	switch (cmd->cmd) {
	case ETHTOOL_GRXRINGS:
		cmd->data = cfg->vecs;
		break;
	case ETHTOOL_GRXCLSRLCNT:
		cmd->rule_cnt = aq_get_rxnfc_count_all_rules(aq_nic);
		break;
	case ETHTOOL_GRXCLSRULE:
		err = aq_get_rxnfc_rule(aq_nic, cmd);
		break;
	case ETHTOOL_GRXCLSRLALL:
		err = aq_get_rxnfc_all_rules(aq_nic, cmd, rule_locs);
		break;
	default:
		err = -EOPNOTSUPP;
		break;
	}

	return err;
}

static int aq_ethtool_set_rxnfc(struct net_device *ndev,
				struct ethtool_rxnfc *cmd)
{
	struct aq_nic_s *aq_nic = netdev_priv(ndev);
	int err = 0;

	switch (cmd->cmd) {
	case ETHTOOL_SRXCLSRLINS:
		err = aq_add_rxnfc_rule(aq_nic, cmd);
		break;
	case ETHTOOL_SRXCLSRLDEL:
		err = aq_del_rxnfc_rule(aq_nic, cmd);
		break;
	default:
		err = -EOPNOTSUPP;
		break;
	}

	return err;
}

static int aq_ethtool_get_coalesce(struct net_device *ndev,
				   struct ethtool_coalesce *coal)
{
	struct aq_nic_s *aq_nic = netdev_priv(ndev);
	struct aq_nic_cfg_s *cfg;

	cfg = aq_nic_get_cfg(aq_nic);

	if (cfg->itr == AQ_CFG_INTERRUPT_MODERATION_ON ||
	    cfg->itr == AQ_CFG_INTERRUPT_MODERATION_AUTO) {
		coal->rx_coalesce_usecs = cfg->rx_itr;
		coal->tx_coalesce_usecs = cfg->tx_itr;
		coal->rx_max_coalesced_frames = 0;
		coal->tx_max_coalesced_frames = 0;
	} else {
		coal->rx_coalesce_usecs = 0;
		coal->tx_coalesce_usecs = 0;
		coal->rx_max_coalesced_frames = 1;
		coal->tx_max_coalesced_frames = 1;
	}

	return 0;
}

static int aq_ethtool_set_coalesce(struct net_device *ndev,
				   struct ethtool_coalesce *coal)
{
	struct aq_nic_s *aq_nic = netdev_priv(ndev);
	struct aq_nic_cfg_s *cfg;

	cfg = aq_nic_get_cfg(aq_nic);

	/* Atlantic only supports timing based coalescing
	 */
	if (coal->rx_max_coalesced_frames > 1 ||
	    coal->tx_max_coalesced_frames > 1)
		return -EOPNOTSUPP;

	/* We do not support frame counting. Check this
	 */
	if (!(coal->rx_max_coalesced_frames == !coal->rx_coalesce_usecs))
		return -EOPNOTSUPP;
	if (!(coal->tx_max_coalesced_frames == !coal->tx_coalesce_usecs))
		return -EOPNOTSUPP;

	if (coal->rx_coalesce_usecs > AQ_CFG_INTERRUPT_MODERATION_USEC_MAX ||
	    coal->tx_coalesce_usecs > AQ_CFG_INTERRUPT_MODERATION_USEC_MAX)
		return -EINVAL;

	cfg->itr = AQ_CFG_INTERRUPT_MODERATION_ON;

	cfg->rx_itr = coal->rx_coalesce_usecs;
	cfg->tx_itr = coal->tx_coalesce_usecs;

	return aq_nic_update_interrupt_moderation_settings(aq_nic);
}

static void aq_ethtool_get_wol(struct net_device *ndev,
			       struct ethtool_wolinfo *wol)
{
	struct aq_nic_s *aq_nic = netdev_priv(ndev);
	struct aq_nic_cfg_s *cfg;

	cfg = aq_nic_get_cfg(aq_nic);

	wol->supported = AQ_NIC_WOL_MODES;
	wol->wolopts = cfg->wol;
}

static int aq_ethtool_set_wol(struct net_device *ndev,
			      struct ethtool_wolinfo *wol)
{
	struct pci_dev *pdev = to_pci_dev(ndev->dev.parent);
	struct aq_nic_s *aq_nic = netdev_priv(ndev);
	struct aq_nic_cfg_s *cfg;
	int err = 0;

	cfg = aq_nic_get_cfg(aq_nic);

	if (wol->wolopts & ~AQ_NIC_WOL_MODES)
		return -EOPNOTSUPP;

	cfg->wol = wol->wolopts;

	err = device_set_wakeup_enable(&pdev->dev, !!cfg->wol);

	return err;
}

static int aq_ethtool_get_ts_info(struct net_device *ndev,
				  struct ethtool_ts_info *info)
{
	struct aq_nic_s *aq_nic = netdev_priv(ndev);

	ethtool_op_get_ts_info(ndev, info);

	if (!aq_nic->aq_ptp)
		return 0;

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

	info->tx_types = BIT(HWTSTAMP_TX_OFF) |
			 BIT(HWTSTAMP_TX_ON);

	info->rx_filters = BIT(HWTSTAMP_FILTER_NONE);

	info->rx_filters |= BIT(HWTSTAMP_FILTER_PTP_V2_L4_EVENT) |
			    BIT(HWTSTAMP_FILTER_PTP_V2_L2_EVENT) |
			    BIT(HWTSTAMP_FILTER_PTP_V2_EVENT);

	info->phc_index = ptp_clock_index(aq_ptp_get_ptp_clock(aq_nic->aq_ptp));

	return 0;
}

static enum hw_atl_fw2x_rate eee_mask_to_ethtool_mask(u32 speed)
{
	u32 rate = 0;

	if (speed & AQ_NIC_RATE_EEE_10G)
		rate |= SUPPORTED_10000baseT_Full;

	if (speed & AQ_NIC_RATE_EEE_2GS)
		rate |= SUPPORTED_2500baseX_Full;

	if (speed & AQ_NIC_RATE_EEE_1G)
		rate |= SUPPORTED_1000baseT_Full;

	return rate;
}

static int aq_ethtool_get_eee(struct net_device *ndev, struct ethtool_eee *eee)
{
	struct aq_nic_s *aq_nic = netdev_priv(ndev);
	u32 rate, supported_rates;
	int err = 0;

	if (!aq_nic->aq_fw_ops->get_eee_rate)
		return -EOPNOTSUPP;

	mutex_lock(&aq_nic->fwreq_mutex);
	err = aq_nic->aq_fw_ops->get_eee_rate(aq_nic->aq_hw, &rate,
					      &supported_rates);
	mutex_unlock(&aq_nic->fwreq_mutex);
	if (err < 0)
		return err;

	eee->supported = eee_mask_to_ethtool_mask(supported_rates);

	if (aq_nic->aq_nic_cfg.eee_speeds)
		eee->advertised = eee->supported;

	eee->lp_advertised = eee_mask_to_ethtool_mask(rate);

	eee->eee_enabled = !!eee->advertised;

	eee->tx_lpi_enabled = eee->eee_enabled;
	if (eee->advertised & eee->lp_advertised)
		eee->eee_active = true;

	return 0;
}

static int aq_ethtool_set_eee(struct net_device *ndev, struct ethtool_eee *eee)
{
	struct aq_nic_s *aq_nic = netdev_priv(ndev);
	u32 rate, supported_rates;
	struct aq_nic_cfg_s *cfg;
	int err = 0;

	cfg = aq_nic_get_cfg(aq_nic);

	if (unlikely(!aq_nic->aq_fw_ops->get_eee_rate ||
		     !aq_nic->aq_fw_ops->set_eee_rate))
		return -EOPNOTSUPP;

	mutex_lock(&aq_nic->fwreq_mutex);
	err = aq_nic->aq_fw_ops->get_eee_rate(aq_nic->aq_hw, &rate,
					      &supported_rates);
	mutex_unlock(&aq_nic->fwreq_mutex);
	if (err < 0)
		return err;

	if (eee->eee_enabled) {
		rate = supported_rates;
		cfg->eee_speeds = rate;
	} else {
		rate = 0;
		cfg->eee_speeds = 0;
	}

	mutex_lock(&aq_nic->fwreq_mutex);
	err = aq_nic->aq_fw_ops->set_eee_rate(aq_nic->aq_hw, rate);
	mutex_unlock(&aq_nic->fwreq_mutex);

	return err;
}

static int aq_ethtool_nway_reset(struct net_device *ndev)
{
	struct aq_nic_s *aq_nic = netdev_priv(ndev);
	int err = 0;

	if (unlikely(!aq_nic->aq_fw_ops->renegotiate))
		return -EOPNOTSUPP;

	if (netif_running(ndev)) {
		mutex_lock(&aq_nic->fwreq_mutex);
		err = aq_nic->aq_fw_ops->renegotiate(aq_nic->aq_hw);
		mutex_unlock(&aq_nic->fwreq_mutex);
	}

	return err;
}

static void aq_ethtool_get_pauseparam(struct net_device *ndev,
				      struct ethtool_pauseparam *pause)
{
	struct aq_nic_s *aq_nic = netdev_priv(ndev);
	u32 fc = aq_nic->aq_nic_cfg.fc.req;

	pause->autoneg = 0;

	pause->rx_pause = !!(fc & AQ_NIC_FC_RX);
	pause->tx_pause = !!(fc & AQ_NIC_FC_TX);

}

static int aq_ethtool_set_pauseparam(struct net_device *ndev,
				     struct ethtool_pauseparam *pause)
{
	struct aq_nic_s *aq_nic = netdev_priv(ndev);
	int err = 0;

	if (!aq_nic->aq_fw_ops->set_flow_control)
		return -EOPNOTSUPP;

	if (pause->autoneg == AUTONEG_ENABLE)
		return -EOPNOTSUPP;

	if (pause->rx_pause)
		aq_nic->aq_hw->aq_nic_cfg->fc.req |= AQ_NIC_FC_RX;
	else
		aq_nic->aq_hw->aq_nic_cfg->fc.req &= ~AQ_NIC_FC_RX;

	if (pause->tx_pause)
		aq_nic->aq_hw->aq_nic_cfg->fc.req |= AQ_NIC_FC_TX;
	else
		aq_nic->aq_hw->aq_nic_cfg->fc.req &= ~AQ_NIC_FC_TX;

	mutex_lock(&aq_nic->fwreq_mutex);
	err = aq_nic->aq_fw_ops->set_flow_control(aq_nic->aq_hw);
	mutex_unlock(&aq_nic->fwreq_mutex);

	return err;
}

static void aq_get_ringparam(struct net_device *ndev,
			     struct ethtool_ringparam *ring)
{
	struct aq_nic_s *aq_nic = netdev_priv(ndev);
	struct aq_nic_cfg_s *cfg;

	cfg = aq_nic_get_cfg(aq_nic);

	ring->rx_pending = cfg->rxds;
	ring->tx_pending = cfg->txds;

	ring->rx_max_pending = cfg->aq_hw_caps->rxds_max;
	ring->tx_max_pending = cfg->aq_hw_caps->txds_max;
}

static int aq_set_ringparam(struct net_device *ndev,
			    struct ethtool_ringparam *ring)
{
	struct aq_nic_s *aq_nic = netdev_priv(ndev);
	const struct aq_hw_caps_s *hw_caps;
	bool ndev_running = false;
	struct aq_nic_cfg_s *cfg;
	int err = 0;

	cfg = aq_nic_get_cfg(aq_nic);
	hw_caps = cfg->aq_hw_caps;

	if (ring->rx_mini_pending || ring->rx_jumbo_pending) {
		err = -EOPNOTSUPP;
		goto err_exit;
	}

	if (netif_running(ndev)) {
		ndev_running = true;
		dev_close(ndev);
	}

	aq_nic_free_vectors(aq_nic);

	cfg->rxds = max(ring->rx_pending, hw_caps->rxds_min);
	cfg->rxds = min(cfg->rxds, hw_caps->rxds_max);
	cfg->rxds = ALIGN(cfg->rxds, AQ_HW_RXD_MULTIPLE);

	cfg->txds = max(ring->tx_pending, hw_caps->txds_min);
	cfg->txds = min(cfg->txds, hw_caps->txds_max);
	cfg->txds = ALIGN(cfg->txds, AQ_HW_TXD_MULTIPLE);

	for (aq_nic->aq_vecs = 0; aq_nic->aq_vecs < cfg->vecs;
	     aq_nic->aq_vecs++) {
		aq_nic->aq_vec[aq_nic->aq_vecs] =
		    aq_vec_alloc(aq_nic, aq_nic->aq_vecs, cfg);
		if (unlikely(!aq_nic->aq_vec[aq_nic->aq_vecs])) {
			err = -ENOMEM;
			goto err_exit;
		}
	}
	if (ndev_running)
		err = dev_open(ndev, NULL);

err_exit:
	return err;
}

static u32 aq_get_msg_level(struct net_device *ndev)
{
	struct aq_nic_s *aq_nic = netdev_priv(ndev);

	return aq_nic->msg_enable;
}

static void aq_set_msg_level(struct net_device *ndev, u32 data)
{
	struct aq_nic_s *aq_nic = netdev_priv(ndev);

	aq_nic->msg_enable = data;
}

static u32 aq_ethtool_get_priv_flags(struct net_device *ndev)
{
	struct aq_nic_s *aq_nic = netdev_priv(ndev);

	return aq_nic->aq_nic_cfg.priv_flags;
}

static int aq_ethtool_set_priv_flags(struct net_device *ndev, u32 flags)
{
	struct aq_nic_s *aq_nic = netdev_priv(ndev);
	struct aq_nic_cfg_s *cfg;
	u32 priv_flags;

	cfg = aq_nic_get_cfg(aq_nic);
	priv_flags = cfg->priv_flags;

	if (flags & ~AQ_PRIV_FLAGS_MASK)
		return -EOPNOTSUPP;

	if (hweight32((flags | priv_flags) & AQ_HW_LOOPBACK_MASK) > 1) {
		netdev_info(ndev, "Can't enable more than one loopback simultaneously\n");
		return -EINVAL;
	}

	cfg->priv_flags = flags;

	if ((priv_flags ^ flags) & BIT(AQ_HW_LOOPBACK_DMA_NET)) {
		if (netif_running(ndev)) {
			dev_close(ndev);

			dev_open(ndev, NULL);
		}
	} else if ((priv_flags ^ flags) & AQ_HW_LOOPBACK_MASK) {
		aq_nic_set_loopback(aq_nic);
	}

	return 0;
}

const struct ethtool_ops aq_ethtool_ops = {
	.supported_coalesce_params = ETHTOOL_COALESCE_USECS |
				     ETHTOOL_COALESCE_MAX_FRAMES,
	.get_link            = aq_ethtool_get_link,
	.get_regs_len        = aq_ethtool_get_regs_len,
	.get_regs            = aq_ethtool_get_regs,
	.get_drvinfo         = aq_ethtool_get_drvinfo,
	.get_strings         = aq_ethtool_get_strings,
	.set_phys_id         = aq_ethtool_set_phys_id,
	.get_rxfh_indir_size = aq_ethtool_get_rss_indir_size,
	.get_wol             = aq_ethtool_get_wol,
	.set_wol             = aq_ethtool_set_wol,
	.nway_reset          = aq_ethtool_nway_reset,
	.get_ringparam       = aq_get_ringparam,
	.set_ringparam       = aq_set_ringparam,
	.get_eee             = aq_ethtool_get_eee,
	.set_eee             = aq_ethtool_set_eee,
	.get_pauseparam      = aq_ethtool_get_pauseparam,
	.set_pauseparam      = aq_ethtool_set_pauseparam,
	.get_rxfh_key_size   = aq_ethtool_get_rss_key_size,
	.get_rxfh            = aq_ethtool_get_rss,
	.set_rxfh            = aq_ethtool_set_rss,
	.get_rxnfc           = aq_ethtool_get_rxnfc,
	.set_rxnfc           = aq_ethtool_set_rxnfc,
	.get_msglevel        = aq_get_msg_level,
	.set_msglevel        = aq_set_msg_level,
	.get_sset_count      = aq_ethtool_get_sset_count,
	.get_ethtool_stats   = aq_ethtool_stats,
	.get_priv_flags      = aq_ethtool_get_priv_flags,
	.set_priv_flags      = aq_ethtool_set_priv_flags,
	.get_link_ksettings  = aq_ethtool_get_link_ksettings,
	.set_link_ksettings  = aq_ethtool_set_link_ksettings,
	.get_coalesce	     = aq_ethtool_get_coalesce,
	.set_coalesce	     = aq_ethtool_set_coalesce,
	.get_ts_info         = aq_ethtool_get_ts_info,
};