1 files changed, 779 insertions, 0 deletions

diff --git a/drivers/net/ethernet/pensando/ionic/ionic_ethtool.c b/drivers/net/ethernet/pensando/ionic/ionic_ethtool.c
new file mode 100644
index 000000000000..7d10265f782a
--- /dev/null
+++ b/drivers/net/ethernet/pensando/ionic/ionic_ethtool.c
@@ -0,0 +1,779 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright(c) 2017 - 2019 Pensando Systems, Inc */
+
+#include <linux/module.h>
+#include <linux/netdevice.h>
+
+#include "ionic.h"
+#include "ionic_bus.h"
+#include "ionic_lif.h"
+#include "ionic_ethtool.h"
+#include "ionic_stats.h"
+
+static const char ionic_priv_flags_strings[][ETH_GSTRING_LEN] = {
+#define PRIV_F_SW_DBG_STATS		BIT(0)
+	"sw-dbg-stats",
+};
+#define PRIV_FLAGS_COUNT ARRAY_SIZE(ionic_priv_flags_strings)
+
+static void ionic_get_stats_strings(struct ionic_lif *lif, u8 *buf)
+{
+	u32 i;
+
+	for (i = 0; i < ionic_num_stats_grps; i++)
+		ionic_stats_groups[i].get_strings(lif, &buf);
+}
+
+static void ionic_get_stats(struct net_device *netdev,
+			    struct ethtool_stats *stats, u64 *buf)
+{
+	struct ionic_lif *lif;
+	u32 i;
+
+	lif = netdev_priv(netdev);
+
+	memset(buf, 0, stats->n_stats * sizeof(*buf));
+	for (i = 0; i < ionic_num_stats_grps; i++)
+		ionic_stats_groups[i].get_values(lif, &buf);
+}
+
+static int ionic_get_stats_count(struct ionic_lif *lif)
+{
+	int i, num_stats = 0;
+
+	for (i = 0; i < ionic_num_stats_grps; i++)
+		num_stats += ionic_stats_groups[i].get_count(lif);
+
+	return num_stats;
+}
+
+static int ionic_get_sset_count(struct net_device *netdev, int sset)
+{
+	struct ionic_lif *lif = netdev_priv(netdev);
+	int count = 0;
+
+	switch (sset) {
+	case ETH_SS_STATS:
+		count = ionic_get_stats_count(lif);
+		break;
+	case ETH_SS_PRIV_FLAGS:
+		count = PRIV_FLAGS_COUNT;
+		break;
+	}
+	return count;
+}
+
+static void ionic_get_strings(struct net_device *netdev,
+			      u32 sset, u8 *buf)
+{
+	struct ionic_lif *lif = netdev_priv(netdev);
+
+	switch (sset) {
+	case ETH_SS_STATS:
+		ionic_get_stats_strings(lif, buf);
+		break;
+	case ETH_SS_PRIV_FLAGS:
+		memcpy(buf, ionic_priv_flags_strings,
+		       PRIV_FLAGS_COUNT * ETH_GSTRING_LEN);
+		break;
+	}
+}
+
+static void ionic_get_drvinfo(struct net_device *netdev,
+			      struct ethtool_drvinfo *drvinfo)
+{
+	struct ionic_lif *lif = netdev_priv(netdev);
+	struct ionic *ionic = lif->ionic;
+
+	strlcpy(drvinfo->driver, IONIC_DRV_NAME, sizeof(drvinfo->driver));
+	strlcpy(drvinfo->version, IONIC_DRV_VERSION, sizeof(drvinfo->version));
+	strlcpy(drvinfo->fw_version, ionic->idev.dev_info.fw_version,
+		sizeof(drvinfo->fw_version));
+	strlcpy(drvinfo->bus_info, ionic_bus_info(ionic),
+		sizeof(drvinfo->bus_info));
+}
+
+static int ionic_get_regs_len(struct net_device *netdev)
+{
+	return (IONIC_DEV_INFO_REG_COUNT + IONIC_DEV_CMD_REG_COUNT) * sizeof(u32);
+}
+
+static void ionic_get_regs(struct net_device *netdev, struct ethtool_regs *regs,
+			   void *p)
+{
+	struct ionic_lif *lif = netdev_priv(netdev);
+	unsigned int size;
+
+	regs->version = IONIC_DEV_CMD_REG_VERSION;
+
+	size = IONIC_DEV_INFO_REG_COUNT * sizeof(u32);
+	memcpy_fromio(p, lif->ionic->idev.dev_info_regs->words, size);
+
+	size = IONIC_DEV_CMD_REG_COUNT * sizeof(u32);
+	memcpy_fromio(p, lif->ionic->idev.dev_cmd_regs->words, size);
+}
+
+static int ionic_get_link_ksettings(struct net_device *netdev,
+				    struct ethtool_link_ksettings *ks)
+{
+	struct ionic_lif *lif = netdev_priv(netdev);
+	struct ionic_dev *idev = &lif->ionic->idev;
+	int copper_seen = 0;
+
+	ethtool_link_ksettings_zero_link_mode(ks, supported);
+
+	/* The port_info data is found in a DMA space that the NIC keeps
+	 * up-to-date, so there's no need to request the data from the
+	 * NIC, we already have it in our memory space.
+	 */
+
+	switch (le16_to_cpu(idev->port_info->status.xcvr.pid)) {
+		/* Copper */
+	case IONIC_XCVR_PID_QSFP_100G_CR4:
+		ethtool_link_ksettings_add_link_mode(ks, supported,
+						     100000baseCR4_Full);
+		copper_seen++;
+		break;
+	case IONIC_XCVR_PID_QSFP_40GBASE_CR4:
+		ethtool_link_ksettings_add_link_mode(ks, supported,
+						     40000baseCR4_Full);
+		copper_seen++;
+		break;
+	case IONIC_XCVR_PID_SFP_25GBASE_CR_S:
+	case IONIC_XCVR_PID_SFP_25GBASE_CR_L:
+	case IONIC_XCVR_PID_SFP_25GBASE_CR_N:
+		ethtool_link_ksettings_add_link_mode(ks, supported,
+						     25000baseCR_Full);
+		copper_seen++;
+		break;
+	case IONIC_XCVR_PID_SFP_10GBASE_AOC:
+	case IONIC_XCVR_PID_SFP_10GBASE_CU:
+		ethtool_link_ksettings_add_link_mode(ks, supported,
+						     10000baseCR_Full);
+		copper_seen++;
+		break;
+
+		/* Fibre */
+	case IONIC_XCVR_PID_QSFP_100G_SR4:
+	case IONIC_XCVR_PID_QSFP_100G_AOC:
+		ethtool_link_ksettings_add_link_mode(ks, supported,
+						     100000baseSR4_Full);
+		break;
+	case IONIC_XCVR_PID_QSFP_100G_LR4:
+		ethtool_link_ksettings_add_link_mode(ks, supported,
+						     100000baseLR4_ER4_Full);
+		break;
+	case IONIC_XCVR_PID_QSFP_100G_ER4:
+		ethtool_link_ksettings_add_link_mode(ks, supported,
+						     100000baseLR4_ER4_Full);
+		break;
+	case IONIC_XCVR_PID_QSFP_40GBASE_SR4:
+	case IONIC_XCVR_PID_QSFP_40GBASE_AOC:
+		ethtool_link_ksettings_add_link_mode(ks, supported,
+						     40000baseSR4_Full);
+		break;
+	case IONIC_XCVR_PID_QSFP_40GBASE_LR4:
+		ethtool_link_ksettings_add_link_mode(ks, supported,
+						     40000baseLR4_Full);
+		break;
+	case IONIC_XCVR_PID_SFP_25GBASE_SR:
+	case IONIC_XCVR_PID_SFP_25GBASE_AOC:
+		ethtool_link_ksettings_add_link_mode(ks, supported,
+						     25000baseSR_Full);
+		break;
+	case IONIC_XCVR_PID_SFP_10GBASE_SR:
+		ethtool_link_ksettings_add_link_mode(ks, supported,
+						     10000baseSR_Full);
+		break;
+	case IONIC_XCVR_PID_SFP_10GBASE_LR:
+		ethtool_link_ksettings_add_link_mode(ks, supported,
+						     10000baseLR_Full);
+		break;
+	case IONIC_XCVR_PID_SFP_10GBASE_LRM:
+		ethtool_link_ksettings_add_link_mode(ks, supported,
+						     10000baseLRM_Full);
+		break;
+	case IONIC_XCVR_PID_SFP_10GBASE_ER:
+		ethtool_link_ksettings_add_link_mode(ks, supported,
+						     10000baseER_Full);
+		break;
+	case IONIC_XCVR_PID_UNKNOWN:
+		/* This means there's no module plugged in */
+		break;
+	default:
+		dev_info(lif->ionic->dev, "unknown xcvr type pid=%d / 0x%x\n",
+			 idev->port_info->status.xcvr.pid,
+			 idev->port_info->status.xcvr.pid);
+		break;
+	}
+
+	bitmap_copy(ks->link_modes.advertising, ks->link_modes.supported,
+		    __ETHTOOL_LINK_MODE_MASK_NBITS);
+
+	ethtool_link_ksettings_add_link_mode(ks, supported, FEC_BASER);
+	ethtool_link_ksettings_add_link_mode(ks, supported, FEC_RS);
+	if (idev->port_info->config.fec_type == IONIC_PORT_FEC_TYPE_FC)
+		ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_BASER);
+	else if (idev->port_info->config.fec_type == IONIC_PORT_FEC_TYPE_RS)
+		ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_RS);
+
+	ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE);
+	ethtool_link_ksettings_add_link_mode(ks, supported, Pause);
+
+	if (idev->port_info->status.xcvr.phy == IONIC_PHY_TYPE_COPPER ||
+	    copper_seen)
+		ks->base.port = PORT_DA;
+	else if (idev->port_info->status.xcvr.phy == IONIC_PHY_TYPE_FIBER)
+		ks->base.port = PORT_FIBRE;
+	else
+		ks->base.port = PORT_NONE;
+
+	if (ks->base.port != PORT_NONE) {
+		ks->base.speed = le32_to_cpu(lif->info->status.link_speed);
+
+		if (le16_to_cpu(lif->info->status.link_status))
+			ks->base.duplex = DUPLEX_FULL;
+		else
+			ks->base.duplex = DUPLEX_UNKNOWN;
+
+		ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
+
+		if (idev->port_info->config.an_enable) {
+			ethtool_link_ksettings_add_link_mode(ks, advertising,
+							     Autoneg);
+			ks->base.autoneg = AUTONEG_ENABLE;
+		}
+	}
+
+	return 0;
+}
+
+static int ionic_set_link_ksettings(struct net_device *netdev,
+				    const struct ethtool_link_ksettings *ks)
+{
+	struct ionic_lif *lif = netdev_priv(netdev);
+	struct ionic *ionic = lif->ionic;
+	struct ionic_dev *idev;
+	u32 req_rs, req_fc;
+	u8 fec_type;
+	int err = 0;
+
+	idev = &lif->ionic->idev;
+	fec_type = IONIC_PORT_FEC_TYPE_NONE;
+
+	/* set autoneg */
+	if (ks->base.autoneg != idev->port_info->config.an_enable) {
+		mutex_lock(&ionic->dev_cmd_lock);
+		ionic_dev_cmd_port_autoneg(idev, ks->base.autoneg);
+		err = ionic_dev_cmd_wait(ionic, DEVCMD_TIMEOUT);
+		mutex_unlock(&ionic->dev_cmd_lock);
+		if (err)
+			return err;
+	}
+
+	/* set speed */
+	if (ks->base.speed != le32_to_cpu(idev->port_info->config.speed)) {
+		mutex_lock(&ionic->dev_cmd_lock);
+		ionic_dev_cmd_port_speed(idev, ks->base.speed);
+		err = ionic_dev_cmd_wait(ionic, DEVCMD_TIMEOUT);
+		mutex_unlock(&ionic->dev_cmd_lock);
+		if (err)
+			return err;
+	}
+
+	/* set FEC */
+	req_rs = ethtool_link_ksettings_test_link_mode(ks, advertising, FEC_RS);
+	req_fc = ethtool_link_ksettings_test_link_mode(ks, advertising, FEC_BASER);
+	if (req_rs && req_fc) {
+		netdev_info(netdev, "Only select one FEC mode at a time\n");
+		return -EINVAL;
+	} else if (req_fc) {
+		fec_type = IONIC_PORT_FEC_TYPE_FC;
+	} else if (req_rs) {
+		fec_type = IONIC_PORT_FEC_TYPE_RS;
+	} else if (!(req_rs | req_fc)) {
+		fec_type = IONIC_PORT_FEC_TYPE_NONE;
+	}
+
+	if (fec_type != idev->port_info->config.fec_type) {
+		mutex_lock(&ionic->dev_cmd_lock);
+		ionic_dev_cmd_port_fec(idev, fec_type);
+		err = ionic_dev_cmd_wait(ionic, DEVCMD_TIMEOUT);
+		mutex_unlock(&ionic->dev_cmd_lock);
+		if (err)
+			return err;
+	}
+
+	return 0;
+}
+
+static void ionic_get_pauseparam(struct net_device *netdev,
+				 struct ethtool_pauseparam *pause)
+{
+	struct ionic_lif *lif = netdev_priv(netdev);
+	u8 pause_type;
+
+	pause->autoneg = 0;
+
+	pause_type = lif->ionic->idev.port_info->config.pause_type;
+	if (pause_type) {
+		pause->rx_pause = pause_type & IONIC_PAUSE_F_RX ? 1 : 0;
+		pause->tx_pause = pause_type & IONIC_PAUSE_F_TX ? 1 : 0;
+	}
+}
+
+static int ionic_set_pauseparam(struct net_device *netdev,
+				struct ethtool_pauseparam *pause)
+{
+	struct ionic_lif *lif = netdev_priv(netdev);
+	struct ionic *ionic = lif->ionic;
+	u32 requested_pause;
+	int err;
+
+	if (pause->autoneg)
+		return -EOPNOTSUPP;
+
+	/* change both at the same time */
+	requested_pause = IONIC_PORT_PAUSE_TYPE_LINK;
+	if (pause->rx_pause)
+		requested_pause |= IONIC_PAUSE_F_RX;
+	if (pause->tx_pause)
+		requested_pause |= IONIC_PAUSE_F_TX;
+
+	if (requested_pause == lif->ionic->idev.port_info->config.pause_type)
+		return 0;
+
+	mutex_lock(&ionic->dev_cmd_lock);
+	ionic_dev_cmd_port_pause(&lif->ionic->idev, requested_pause);
+	err = ionic_dev_cmd_wait(ionic, DEVCMD_TIMEOUT);
+	mutex_unlock(&ionic->dev_cmd_lock);
+	if (err)
+		return err;
+
+	return 0;
+}
+
+static int ionic_get_coalesce(struct net_device *netdev,
+			      struct ethtool_coalesce *coalesce)
+{
+	struct ionic_lif *lif = netdev_priv(netdev);
+
+	/* Tx uses Rx interrupt */
+	coalesce->tx_coalesce_usecs = lif->rx_coalesce_usecs;
+	coalesce->rx_coalesce_usecs = lif->rx_coalesce_usecs;
+
+	return 0;
+}
+
+static int ionic_set_coalesce(struct net_device *netdev,
+			      struct ethtool_coalesce *coalesce)
+{
+	struct ionic_lif *lif = netdev_priv(netdev);
+	struct ionic_identity *ident;
+	struct ionic_qcq *qcq;
+	unsigned int i;
+	u32 usecs;
+	u32 coal;
+
+	if (coalesce->rx_max_coalesced_frames ||
+	    coalesce->rx_coalesce_usecs_irq ||
+	    coalesce->rx_max_coalesced_frames_irq ||
+	    coalesce->tx_max_coalesced_frames ||
+	    coalesce->tx_coalesce_usecs_irq ||
+	    coalesce->tx_max_coalesced_frames_irq ||
+	    coalesce->stats_block_coalesce_usecs ||
+	    coalesce->use_adaptive_rx_coalesce ||
+	    coalesce->use_adaptive_tx_coalesce ||
+	    coalesce->pkt_rate_low ||
+	    coalesce->rx_coalesce_usecs_low ||
+	    coalesce->rx_max_coalesced_frames_low ||
+	    coalesce->tx_coalesce_usecs_low ||
+	    coalesce->tx_max_coalesced_frames_low ||
+	    coalesce->pkt_rate_high ||
+	    coalesce->rx_coalesce_usecs_high ||
+	    coalesce->rx_max_coalesced_frames_high ||
+	    coalesce->tx_coalesce_usecs_high ||
+	    coalesce->tx_max_coalesced_frames_high ||
+	    coalesce->rate_sample_interval)
+		return -EINVAL;
+
+	ident = &lif->ionic->ident;
+	if (ident->dev.intr_coal_div == 0) {
+		netdev_warn(netdev, "bad HW value in dev.intr_coal_div = %d\n",
+			    ident->dev.intr_coal_div);
+		return -EIO;
+	}
+
+	/* Tx uses Rx interrupt, so only change Rx */
+	if (coalesce->tx_coalesce_usecs != lif->rx_coalesce_usecs) {
+		netdev_warn(netdev, "only the rx-usecs can be changed\n");
+		return -EINVAL;
+	}
+
+	coal = ionic_coal_usec_to_hw(lif->ionic, coalesce->rx_coalesce_usecs);
+
+	if (coal > IONIC_INTR_CTRL_COAL_MAX)
+		return -ERANGE;
+
+	/* If they asked for non-zero and it resolved to zero, bump it up */
+	if (!coal && coalesce->rx_coalesce_usecs)
+		coal = 1;
+
+	/* Convert it back to get device resolution */
+	usecs = ionic_coal_hw_to_usec(lif->ionic, coal);
+
+	if (usecs != lif->rx_coalesce_usecs) {
+		lif->rx_coalesce_usecs = usecs;
+
+		if (test_bit(IONIC_LIF_UP, lif->state)) {
+			for (i = 0; i < lif->nxqs; i++) {
+				qcq = lif->rxqcqs[i].qcq;
+				ionic_intr_coal_init(lif->ionic->idev.intr_ctrl,
+						     qcq->intr.index, coal);
+			}
+		}
+	}
+
+	return 0;
+}
+
+static void ionic_get_ringparam(struct net_device *netdev,
+				struct ethtool_ringparam *ring)
+{
+	struct ionic_lif *lif = netdev_priv(netdev);
+
+	ring->tx_max_pending = IONIC_MAX_TXRX_DESC;
+	ring->tx_pending = lif->ntxq_descs;
+	ring->rx_max_pending = IONIC_MAX_TXRX_DESC;
+	ring->rx_pending = lif->nrxq_descs;
+}
+
+static int ionic_set_ringparam(struct net_device *netdev,
+			       struct ethtool_ringparam *ring)
+{
+	struct ionic_lif *lif = netdev_priv(netdev);
+	bool running;
+
+	if (ring->rx_mini_pending || ring->rx_jumbo_pending) {
+		netdev_info(netdev, "Changing jumbo or mini descriptors not supported\n");
+		return -EINVAL;
+	}
+
+	if (!is_power_of_2(ring->tx_pending) ||
+	    !is_power_of_2(ring->rx_pending)) {
+		netdev_info(netdev, "Descriptor count must be a power of 2\n");
+		return -EINVAL;
+	}
+
+	/* if nothing to do return success */
+	if (ring->tx_pending == lif->ntxq_descs &&
+	    ring->rx_pending == lif->nrxq_descs)
+		return 0;
+
+	if (!ionic_wait_for_bit(lif, IONIC_LIF_QUEUE_RESET))
+		return -EBUSY;
+
+	running = test_bit(IONIC_LIF_UP, lif->state);
+	if (running)
+		ionic_stop(netdev);
+
+	lif->ntxq_descs = ring->tx_pending;
+	lif->nrxq_descs = ring->rx_pending;
+
+	if (running)
+		ionic_open(netdev);
+	clear_bit(IONIC_LIF_QUEUE_RESET, lif->state);
+
+	return 0;
+}
+
+static void ionic_get_channels(struct net_device *netdev,
+			       struct ethtool_channels *ch)
+{
+	struct ionic_lif *lif = netdev_priv(netdev);
+
+	/* report maximum channels */
+	ch->max_combined = lif->ionic->ntxqs_per_lif;
+
+	/* report current channels */
+	ch->combined_count = lif->nxqs;
+}
+
+static int ionic_set_channels(struct net_device *netdev,
+			      struct ethtool_channels *ch)
+{
+	struct ionic_lif *lif = netdev_priv(netdev);
+	bool running;
+
+	if (!ch->combined_count || ch->other_count ||
+	    ch->rx_count || ch->tx_count)
+		return -EINVAL;
+
+	if (ch->combined_count == lif->nxqs)
+		return 0;
+
+	if (!ionic_wait_for_bit(lif, IONIC_LIF_QUEUE_RESET))
+		return -EBUSY;
+
+	running = test_bit(IONIC_LIF_UP, lif->state);
+	if (running)
+		ionic_stop(netdev);
+
+	lif->nxqs = ch->combined_count;
+
+	if (running)
+		ionic_open(netdev);
+	clear_bit(IONIC_LIF_QUEUE_RESET, lif->state);
+
+	return 0;
+}
+
+static u32 ionic_get_priv_flags(struct net_device *netdev)
+{
+	struct ionic_lif *lif = netdev_priv(netdev);
+	u32 priv_flags = 0;
+
+	if (test_bit(IONIC_LIF_SW_DEBUG_STATS, lif->state))
+		priv_flags |= PRIV_F_SW_DBG_STATS;
+
+	return priv_flags;
+}
+
+static int ionic_set_priv_flags(struct net_device *netdev, u32 priv_flags)
+{
+	struct ionic_lif *lif = netdev_priv(netdev);
+	u32 flags = lif->flags;
+
+	clear_bit(IONIC_LIF_SW_DEBUG_STATS, lif->state);
+	if (priv_flags & PRIV_F_SW_DBG_STATS)
+		set_bit(IONIC_LIF_SW_DEBUG_STATS, lif->state);
+
+	if (flags != lif->flags)
+		lif->flags = flags;
+
+	return 0;
+}
+
+static int ionic_get_rxnfc(struct net_device *netdev,
+			   struct ethtool_rxnfc *info, u32 *rules)
+{
+	struct ionic_lif *lif = netdev_priv(netdev);
+	int err = 0;
+
+	switch (info->cmd) {
+	case ETHTOOL_GRXRINGS:
+		info->data = lif->nxqs;
+		break;
+	default:
+		netdev_err(netdev, "Command parameter %d is not supported\n",
+			   info->cmd);
+		err = -EOPNOTSUPP;
+	}
+
+	return err;
+}
+
+static u32 ionic_get_rxfh_indir_size(struct net_device *netdev)
+{
+	struct ionic_lif *lif = netdev_priv(netdev);
+
+	return le16_to_cpu(lif->ionic->ident.lif.eth.rss_ind_tbl_sz);
+}
+
+static u32 ionic_get_rxfh_key_size(struct net_device *netdev)
+{
+	return IONIC_RSS_HASH_KEY_SIZE;
+}
+
+static int ionic_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key,
+			  u8 *hfunc)
+{
+	struct ionic_lif *lif = netdev_priv(netdev);
+	unsigned int i, tbl_sz;
+
+	if (indir) {
+		tbl_sz = le16_to_cpu(lif->ionic->ident.lif.eth.rss_ind_tbl_sz);
+		for (i = 0; i < tbl_sz; i++)
+			indir[i] = lif->rss_ind_tbl[i];
+	}
+
+	if (key)
+		memcpy(key, lif->rss_hash_key, IONIC_RSS_HASH_KEY_SIZE);
+
+	if (hfunc)
+		*hfunc = ETH_RSS_HASH_TOP;
+
+	return 0;
+}
+
+static int ionic_set_rxfh(struct net_device *netdev, const u32 *indir,
+			  const u8 *key, const u8 hfunc)
+{
+	struct ionic_lif *lif = netdev_priv(netdev);
+	int err;
+
+	if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)
+		return -EOPNOTSUPP;
+
+	err = ionic_lif_rss_config(lif, lif->rss_types, key, indir);
+	if (err)
+		return err;
+
+	return 0;
+}
+
+static int ionic_set_tunable(struct net_device *dev,
+			     const struct ethtool_tunable *tuna,
+			     const void *data)
+{
+	struct ionic_lif *lif = netdev_priv(dev);
+
+	switch (tuna->id) {
+	case ETHTOOL_RX_COPYBREAK:
+		lif->rx_copybreak = *(u32 *)data;
+		break;
+	default:
+		return -EOPNOTSUPP;
+	}
+
+	return 0;
+}
+
+static int ionic_get_tunable(struct net_device *netdev,
+			     const struct ethtool_tunable *tuna, void *data)
+{
+	struct ionic_lif *lif = netdev_priv(netdev);
+
+	switch (tuna->id) {
+	case ETHTOOL_RX_COPYBREAK:
+		*(u32 *)data = lif->rx_copybreak;
+		break;
+	default:
+		return -EOPNOTSUPP;
+	}
+
+	return 0;
+}
+
+static int ionic_get_module_info(struct net_device *netdev,
+				 struct ethtool_modinfo *modinfo)
+
+{
+	struct ionic_lif *lif = netdev_priv(netdev);
+	struct ionic_dev *idev = &lif->ionic->idev;
+	struct ionic_xcvr_status *xcvr;
+
+	xcvr = &idev->port_info->status.xcvr;
+
+	/* report the module data type and length */
+	switch (xcvr->sprom[0]) {
+	case 0x03: /* SFP */
+		modinfo->type = ETH_MODULE_SFF_8079;
+		modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
+		break;
+	case 0x0D: /* QSFP */
+	case 0x11: /* QSFP28 */
+		modinfo->type = ETH_MODULE_SFF_8436;
+		modinfo->eeprom_len = ETH_MODULE_SFF_8436_LEN;
+		break;
+	default:
+		netdev_info(netdev, "unknown xcvr type 0x%02x\n",
+			    xcvr->sprom[0]);
+		break;
+	}
+
+	return 0;
+}
+
+static int ionic_get_module_eeprom(struct net_device *netdev,
+				   struct ethtool_eeprom *ee,
+				   u8 *data)
+{
+	struct ionic_lif *lif = netdev_priv(netdev);
+	struct ionic_dev *idev = &lif->ionic->idev;
+	struct ionic_xcvr_status *xcvr;
+	char tbuf[sizeof(xcvr->sprom)];
+	int count = 10;
+	u32 len;
+
+	/* The NIC keeps the module prom up-to-date in the DMA space
+	 * so we can simply copy the module bytes into the data buffer.
+	 */
+	xcvr = &idev->port_info->status.xcvr;
+	len = min_t(u32, sizeof(xcvr->sprom), ee->len);
+
+	do {
+		memcpy(data, xcvr->sprom, len);
+		memcpy(tbuf, xcvr->sprom, len);
+
+		/* Let's make sure we got a consistent copy */
+		if (!memcmp(data, tbuf, len))
+			break;
+
+	} while (--count);
+
+	if (!count)
+		return -ETIMEDOUT;
+
+	return 0;
+}
+
+static int ionic_nway_reset(struct net_device *netdev)
+{
+	struct ionic_lif *lif = netdev_priv(netdev);
+	struct ionic *ionic = lif->ionic;
+	int err = 0;
+
+	/* flap the link to force auto-negotiation */
+
+	mutex_lock(&ionic->dev_cmd_lock);
+
+	ionic_dev_cmd_port_state(&ionic->idev, IONIC_PORT_ADMIN_STATE_DOWN);
+	err = ionic_dev_cmd_wait(ionic, DEVCMD_TIMEOUT);
+
+	if (!err) {
+		ionic_dev_cmd_port_state(&ionic->idev, IONIC_PORT_ADMIN_STATE_UP);
+		err = ionic_dev_cmd_wait(ionic, DEVCMD_TIMEOUT);
+	}
+
+	mutex_unlock(&ionic->dev_cmd_lock);
+
+	return err;
+}
+
+static const struct ethtool_ops ionic_ethtool_ops = {
+	.get_drvinfo		= ionic_get_drvinfo,
+	.get_regs_len		= ionic_get_regs_len,
+	.get_regs		= ionic_get_regs,
+	.get_link		= ethtool_op_get_link,
+	.get_link_ksettings	= ionic_get_link_ksettings,
+	.get_coalesce		= ionic_get_coalesce,
+	.set_coalesce		= ionic_set_coalesce,
+	.get_ringparam		= ionic_get_ringparam,
+	.set_ringparam		= ionic_set_ringparam,
+	.get_channels		= ionic_get_channels,
+	.set_channels		= ionic_set_channels,
+	.get_strings		= ionic_get_strings,
+	.get_ethtool_stats	= ionic_get_stats,
+	.get_sset_count		= ionic_get_sset_count,
+	.get_priv_flags		= ionic_get_priv_flags,
+	.set_priv_flags		= ionic_set_priv_flags,
+	.get_rxnfc		= ionic_get_rxnfc,
+	.get_rxfh_indir_size	= ionic_get_rxfh_indir_size,
+	.get_rxfh_key_size	= ionic_get_rxfh_key_size,
+	.get_rxfh		= ionic_get_rxfh,
+	.set_rxfh		= ionic_set_rxfh,
+	.get_tunable		= ionic_get_tunable,
+	.set_tunable		= ionic_set_tunable,
+	.get_module_info	= ionic_get_module_info,
+	.get_module_eeprom	= ionic_get_module_eeprom,
+	.get_pauseparam		= ionic_get_pauseparam,
+	.set_pauseparam		= ionic_set_pauseparam,
+	.set_link_ksettings	= ionic_set_link_ksettings,
+	.nway_reset		= ionic_nway_reset,
+};
+
+void ionic_ethtool_set_ops(struct net_device *netdev)
+{
+	netdev->ethtool_ops = &ionic_ethtool_ops;
+}