Adding upstream version 6.1.76.upstream/6.1.76

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 802 insertions, 0 deletions

diff --git a/drivers/net/ethernet/marvell/prestera/prestera_ethtool.c b/drivers/net/ethernet/marvell/prestera/prestera_ethtool.c
new file mode 100644
index 000000000..2f52daba5
--- /dev/null
+++ b/drivers/net/ethernet/marvell/prestera/prestera_ethtool.c
@@ -0,0 +1,802 @@
+// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
+/* Copyright (c) 2019-2020 Marvell International Ltd. All rights reserved */
+
+#include <linux/ethtool.h>
+#include <linux/kernel.h>
+#include <linux/netdevice.h>
+
+#include "prestera_ethtool.h"
+#include "prestera.h"
+#include "prestera_hw.h"
+
+#define PRESTERA_STATS_CNT \
+	(sizeof(struct prestera_port_stats) / sizeof(u64))
+#define PRESTERA_STATS_IDX(name) \
+	(offsetof(struct prestera_port_stats, name) / sizeof(u64))
+#define PRESTERA_STATS_FIELD(name)	\
+	[PRESTERA_STATS_IDX(name)] = __stringify(name)
+
+static const char driver_kind[] = "prestera";
+
+static const struct prestera_link_mode {
+	enum ethtool_link_mode_bit_indices eth_mode;
+	u32 speed;
+	u64 pr_mask;
+	u8 duplex;
+	u8 port_type;
+} port_link_modes[PRESTERA_LINK_MODE_MAX] = {
+	[PRESTERA_LINK_MODE_10baseT_Half] = {
+		.eth_mode =  ETHTOOL_LINK_MODE_10baseT_Half_BIT,
+		.speed = 10,
+		.pr_mask = 1 << PRESTERA_LINK_MODE_10baseT_Half,
+		.duplex = PRESTERA_PORT_DUPLEX_HALF,
+		.port_type = PRESTERA_PORT_TYPE_TP,
+	},
+	[PRESTERA_LINK_MODE_10baseT_Full] = {
+		.eth_mode =  ETHTOOL_LINK_MODE_10baseT_Full_BIT,
+		.speed = 10,
+		.pr_mask = 1 << PRESTERA_LINK_MODE_10baseT_Full,
+		.duplex = PRESTERA_PORT_DUPLEX_FULL,
+		.port_type = PRESTERA_PORT_TYPE_TP,
+	},
+	[PRESTERA_LINK_MODE_100baseT_Half] = {
+		.eth_mode =  ETHTOOL_LINK_MODE_100baseT_Half_BIT,
+		.speed = 100,
+		.pr_mask = 1 << PRESTERA_LINK_MODE_100baseT_Half,
+		.duplex = PRESTERA_PORT_DUPLEX_HALF,
+		.port_type = PRESTERA_PORT_TYPE_TP,
+	},
+	[PRESTERA_LINK_MODE_100baseT_Full] = {
+		.eth_mode =  ETHTOOL_LINK_MODE_100baseT_Full_BIT,
+		.speed = 100,
+		.pr_mask = 1 << PRESTERA_LINK_MODE_100baseT_Full,
+		.duplex = PRESTERA_PORT_DUPLEX_FULL,
+		.port_type = PRESTERA_PORT_TYPE_TP,
+	},
+	[PRESTERA_LINK_MODE_1000baseT_Half] = {
+		.eth_mode =  ETHTOOL_LINK_MODE_1000baseT_Half_BIT,
+		.speed = 1000,
+		.pr_mask = 1 << PRESTERA_LINK_MODE_1000baseT_Half,
+		.duplex = PRESTERA_PORT_DUPLEX_HALF,
+		.port_type = PRESTERA_PORT_TYPE_TP,
+	},
+	[PRESTERA_LINK_MODE_1000baseT_Full] = {
+		.eth_mode =  ETHTOOL_LINK_MODE_1000baseT_Full_BIT,
+		.speed = 1000,
+		.pr_mask = 1 << PRESTERA_LINK_MODE_1000baseT_Full,
+		.duplex = PRESTERA_PORT_DUPLEX_FULL,
+		.port_type = PRESTERA_PORT_TYPE_TP,
+	},
+	[PRESTERA_LINK_MODE_1000baseX_Full] = {
+		.eth_mode = ETHTOOL_LINK_MODE_1000baseX_Full_BIT,
+		.speed = 1000,
+		.pr_mask = 1 << PRESTERA_LINK_MODE_1000baseX_Full,
+		.duplex = PRESTERA_PORT_DUPLEX_FULL,
+		.port_type = PRESTERA_PORT_TYPE_FIBRE,
+	},
+	[PRESTERA_LINK_MODE_1000baseKX_Full] = {
+		.eth_mode = ETHTOOL_LINK_MODE_1000baseKX_Full_BIT,
+		.speed = 1000,
+		.pr_mask = 1 << PRESTERA_LINK_MODE_1000baseKX_Full,
+		.duplex = PRESTERA_PORT_DUPLEX_FULL,
+		.port_type = PRESTERA_PORT_TYPE_TP,
+	},
+	[PRESTERA_LINK_MODE_2500baseX_Full] = {
+		.eth_mode =  ETHTOOL_LINK_MODE_2500baseX_Full_BIT,
+		.speed = 2500,
+		.pr_mask = 1 << PRESTERA_LINK_MODE_2500baseX_Full,
+		.duplex = PRESTERA_PORT_DUPLEX_FULL,
+	},
+	[PRESTERA_LINK_MODE_10GbaseKR_Full] = {
+		.eth_mode = ETHTOOL_LINK_MODE_10000baseKR_Full_BIT,
+		.speed = 10000,
+		.pr_mask = 1 << PRESTERA_LINK_MODE_10GbaseKR_Full,
+		.duplex = PRESTERA_PORT_DUPLEX_FULL,
+		.port_type = PRESTERA_PORT_TYPE_TP,
+	},
+	[PRESTERA_LINK_MODE_10GbaseSR_Full] = {
+		.eth_mode = ETHTOOL_LINK_MODE_10000baseSR_Full_BIT,
+		.speed = 10000,
+		.pr_mask = 1 << PRESTERA_LINK_MODE_10GbaseSR_Full,
+		.duplex = PRESTERA_PORT_DUPLEX_FULL,
+		.port_type = PRESTERA_PORT_TYPE_FIBRE,
+	},
+	[PRESTERA_LINK_MODE_10GbaseLR_Full] = {
+		.eth_mode = ETHTOOL_LINK_MODE_10000baseLR_Full_BIT,
+		.speed = 10000,
+		.pr_mask = 1 << PRESTERA_LINK_MODE_10GbaseLR_Full,
+		.duplex = PRESTERA_PORT_DUPLEX_FULL,
+		.port_type = PRESTERA_PORT_TYPE_FIBRE,
+	},
+	[PRESTERA_LINK_MODE_20GbaseKR2_Full] = {
+		.eth_mode = ETHTOOL_LINK_MODE_20000baseKR2_Full_BIT,
+		.speed = 20000,
+		.pr_mask = 1 << PRESTERA_LINK_MODE_20GbaseKR2_Full,
+		.duplex = PRESTERA_PORT_DUPLEX_FULL,
+		.port_type = PRESTERA_PORT_TYPE_TP,
+	},
+	[PRESTERA_LINK_MODE_25GbaseCR_Full] = {
+		.eth_mode = ETHTOOL_LINK_MODE_25000baseCR_Full_BIT,
+		.speed = 25000,
+		.pr_mask = 1 << PRESTERA_LINK_MODE_25GbaseCR_Full,
+		.duplex = PRESTERA_PORT_DUPLEX_FULL,
+		.port_type = PRESTERA_PORT_TYPE_DA,
+	},
+	[PRESTERA_LINK_MODE_25GbaseKR_Full] = {
+		.eth_mode = ETHTOOL_LINK_MODE_25000baseKR_Full_BIT,
+		.speed = 25000,
+		.pr_mask = 1 << PRESTERA_LINK_MODE_25GbaseKR_Full,
+		.duplex = PRESTERA_PORT_DUPLEX_FULL,
+		.port_type = PRESTERA_PORT_TYPE_TP,
+	},
+	[PRESTERA_LINK_MODE_25GbaseSR_Full] = {
+		.eth_mode = ETHTOOL_LINK_MODE_25000baseSR_Full_BIT,
+		.speed = 25000,
+		.pr_mask = 1 << PRESTERA_LINK_MODE_25GbaseSR_Full,
+		.duplex = PRESTERA_PORT_DUPLEX_FULL,
+		.port_type = PRESTERA_PORT_TYPE_FIBRE,
+	},
+	[PRESTERA_LINK_MODE_40GbaseKR4_Full] = {
+		.eth_mode = ETHTOOL_LINK_MODE_40000baseKR4_Full_BIT,
+		.speed = 40000,
+		.pr_mask = 1 << PRESTERA_LINK_MODE_40GbaseKR4_Full,
+		.duplex = PRESTERA_PORT_DUPLEX_FULL,
+		.port_type = PRESTERA_PORT_TYPE_TP,
+	},
+	[PRESTERA_LINK_MODE_40GbaseCR4_Full] = {
+		.eth_mode = ETHTOOL_LINK_MODE_40000baseCR4_Full_BIT,
+		.speed = 40000,
+		.pr_mask = 1 << PRESTERA_LINK_MODE_40GbaseCR4_Full,
+		.duplex = PRESTERA_PORT_DUPLEX_FULL,
+		.port_type = PRESTERA_PORT_TYPE_DA,
+	},
+	[PRESTERA_LINK_MODE_40GbaseSR4_Full] = {
+		.eth_mode = ETHTOOL_LINK_MODE_40000baseSR4_Full_BIT,
+		.speed = 40000,
+		.pr_mask = 1 << PRESTERA_LINK_MODE_40GbaseSR4_Full,
+		.duplex = PRESTERA_PORT_DUPLEX_FULL,
+		.port_type = PRESTERA_PORT_TYPE_FIBRE,
+	},
+	[PRESTERA_LINK_MODE_50GbaseCR2_Full] = {
+		.eth_mode = ETHTOOL_LINK_MODE_50000baseCR2_Full_BIT,
+		.speed = 50000,
+		.pr_mask = 1 << PRESTERA_LINK_MODE_50GbaseCR2_Full,
+		.duplex = PRESTERA_PORT_DUPLEX_FULL,
+		.port_type = PRESTERA_PORT_TYPE_DA,
+	},
+	[PRESTERA_LINK_MODE_50GbaseKR2_Full] = {
+		.eth_mode = ETHTOOL_LINK_MODE_50000baseKR2_Full_BIT,
+		.speed = 50000,
+		.pr_mask = 1 << PRESTERA_LINK_MODE_50GbaseKR2_Full,
+		.duplex = PRESTERA_PORT_DUPLEX_FULL,
+		.port_type = PRESTERA_PORT_TYPE_TP,
+	},
+	[PRESTERA_LINK_MODE_50GbaseSR2_Full] = {
+		.eth_mode = ETHTOOL_LINK_MODE_50000baseSR2_Full_BIT,
+		.speed = 50000,
+		.pr_mask = 1 << PRESTERA_LINK_MODE_50GbaseSR2_Full,
+		.duplex = PRESTERA_PORT_DUPLEX_FULL,
+		.port_type = PRESTERA_PORT_TYPE_FIBRE,
+	},
+	[PRESTERA_LINK_MODE_100GbaseKR4_Full] = {
+		.eth_mode = ETHTOOL_LINK_MODE_100000baseKR4_Full_BIT,
+		.speed = 100000,
+		.pr_mask = 1 << PRESTERA_LINK_MODE_100GbaseKR4_Full,
+		.duplex = PRESTERA_PORT_DUPLEX_FULL,
+		.port_type = PRESTERA_PORT_TYPE_TP,
+	},
+	[PRESTERA_LINK_MODE_100GbaseSR4_Full] = {
+		.eth_mode = ETHTOOL_LINK_MODE_100000baseSR4_Full_BIT,
+		.speed = 100000,
+		.pr_mask = 1 << PRESTERA_LINK_MODE_100GbaseSR4_Full,
+		.duplex = PRESTERA_PORT_DUPLEX_FULL,
+		.port_type = PRESTERA_PORT_TYPE_FIBRE,
+	},
+	[PRESTERA_LINK_MODE_100GbaseCR4_Full] = {
+		.eth_mode = ETHTOOL_LINK_MODE_100000baseCR4_Full_BIT,
+		.speed = 100000,
+		.pr_mask = 1 << PRESTERA_LINK_MODE_100GbaseCR4_Full,
+		.duplex = PRESTERA_PORT_DUPLEX_FULL,
+		.port_type = PRESTERA_PORT_TYPE_DA,
+	}
+};
+
+static const struct prestera_fec {
+	u32 eth_fec;
+	enum ethtool_link_mode_bit_indices eth_mode;
+	u8 pr_fec;
+} port_fec_caps[PRESTERA_PORT_FEC_MAX] = {
+	[PRESTERA_PORT_FEC_OFF] = {
+		.eth_fec = ETHTOOL_FEC_OFF,
+		.eth_mode = ETHTOOL_LINK_MODE_FEC_NONE_BIT,
+		.pr_fec = 1 << PRESTERA_PORT_FEC_OFF,
+	},
+	[PRESTERA_PORT_FEC_BASER] = {
+		.eth_fec = ETHTOOL_FEC_BASER,
+		.eth_mode = ETHTOOL_LINK_MODE_FEC_BASER_BIT,
+		.pr_fec = 1 << PRESTERA_PORT_FEC_BASER,
+	},
+	[PRESTERA_PORT_FEC_RS] = {
+		.eth_fec = ETHTOOL_FEC_RS,
+		.eth_mode = ETHTOOL_LINK_MODE_FEC_RS_BIT,
+		.pr_fec = 1 << PRESTERA_PORT_FEC_RS,
+	}
+};
+
+static const struct prestera_port_type {
+	enum ethtool_link_mode_bit_indices eth_mode;
+	u8 eth_type;
+} port_types[PRESTERA_PORT_TYPE_MAX] = {
+	[PRESTERA_PORT_TYPE_NONE] = {
+		.eth_mode = __ETHTOOL_LINK_MODE_MASK_NBITS,
+		.eth_type = PORT_NONE,
+	},
+	[PRESTERA_PORT_TYPE_TP] = {
+		.eth_mode = ETHTOOL_LINK_MODE_TP_BIT,
+		.eth_type = PORT_TP,
+	},
+	[PRESTERA_PORT_TYPE_AUI] = {
+		.eth_mode = ETHTOOL_LINK_MODE_AUI_BIT,
+		.eth_type = PORT_AUI,
+	},
+	[PRESTERA_PORT_TYPE_MII] = {
+		.eth_mode = ETHTOOL_LINK_MODE_MII_BIT,
+		.eth_type = PORT_MII,
+	},
+	[PRESTERA_PORT_TYPE_FIBRE] = {
+		.eth_mode = ETHTOOL_LINK_MODE_FIBRE_BIT,
+		.eth_type = PORT_FIBRE,
+	},
+	[PRESTERA_PORT_TYPE_BNC] = {
+		.eth_mode = ETHTOOL_LINK_MODE_BNC_BIT,
+		.eth_type = PORT_BNC,
+	},
+	[PRESTERA_PORT_TYPE_DA] = {
+		.eth_mode = ETHTOOL_LINK_MODE_TP_BIT,
+		.eth_type = PORT_TP,
+	},
+	[PRESTERA_PORT_TYPE_OTHER] = {
+		.eth_mode = __ETHTOOL_LINK_MODE_MASK_NBITS,
+		.eth_type = PORT_OTHER,
+	}
+};
+
+static const char prestera_cnt_name[PRESTERA_STATS_CNT][ETH_GSTRING_LEN] = {
+	PRESTERA_STATS_FIELD(good_octets_received),
+	PRESTERA_STATS_FIELD(bad_octets_received),
+	PRESTERA_STATS_FIELD(mac_trans_error),
+	PRESTERA_STATS_FIELD(broadcast_frames_received),
+	PRESTERA_STATS_FIELD(multicast_frames_received),
+	PRESTERA_STATS_FIELD(frames_64_octets),
+	PRESTERA_STATS_FIELD(frames_65_to_127_octets),
+	PRESTERA_STATS_FIELD(frames_128_to_255_octets),
+	PRESTERA_STATS_FIELD(frames_256_to_511_octets),
+	PRESTERA_STATS_FIELD(frames_512_to_1023_octets),
+	PRESTERA_STATS_FIELD(frames_1024_to_max_octets),
+	PRESTERA_STATS_FIELD(excessive_collision),
+	PRESTERA_STATS_FIELD(multicast_frames_sent),
+	PRESTERA_STATS_FIELD(broadcast_frames_sent),
+	PRESTERA_STATS_FIELD(fc_sent),
+	PRESTERA_STATS_FIELD(fc_received),
+	PRESTERA_STATS_FIELD(buffer_overrun),
+	PRESTERA_STATS_FIELD(undersize),
+	PRESTERA_STATS_FIELD(fragments),
+	PRESTERA_STATS_FIELD(oversize),
+	PRESTERA_STATS_FIELD(jabber),
+	PRESTERA_STATS_FIELD(rx_error_frame_received),
+	PRESTERA_STATS_FIELD(bad_crc),
+	PRESTERA_STATS_FIELD(collisions),
+	PRESTERA_STATS_FIELD(late_collision),
+	PRESTERA_STATS_FIELD(unicast_frames_received),
+	PRESTERA_STATS_FIELD(unicast_frames_sent),
+	PRESTERA_STATS_FIELD(sent_multiple),
+	PRESTERA_STATS_FIELD(sent_deferred),
+	PRESTERA_STATS_FIELD(good_octets_sent),
+};
+
+static void prestera_ethtool_get_drvinfo(struct net_device *dev,
+					 struct ethtool_drvinfo *drvinfo)
+{
+	struct prestera_port *port = netdev_priv(dev);
+	struct prestera_switch *sw = port->sw;
+
+	strscpy(drvinfo->driver, driver_kind, sizeof(drvinfo->driver));
+	strscpy(drvinfo->bus_info, dev_name(prestera_dev(sw)),
+		sizeof(drvinfo->bus_info));
+	snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
+		 "%d.%d.%d",
+		 sw->dev->fw_rev.maj,
+		 sw->dev->fw_rev.min,
+		 sw->dev->fw_rev.sub);
+}
+
+static u8 prestera_port_type_get(struct prestera_port *port)
+{
+	if (port->caps.type < PRESTERA_PORT_TYPE_MAX)
+		return port_types[port->caps.type].eth_type;
+
+	return PORT_OTHER;
+}
+
+static int prestera_port_type_set(const struct ethtool_link_ksettings *ecmd,
+				  struct prestera_port *port)
+{
+	u32 new_mode = PRESTERA_LINK_MODE_MAX;
+	u32 type, mode;
+
+	for (type = 0; type < PRESTERA_PORT_TYPE_MAX; type++) {
+		if (port_types[type].eth_type == ecmd->base.port &&
+		    test_bit(port_types[type].eth_mode,
+			     ecmd->link_modes.supported)) {
+			break;
+		}
+	}
+
+	if (type == port->caps.type)
+		return 0;
+	if (type != port->caps.type && ecmd->base.autoneg == AUTONEG_ENABLE)
+		return -EINVAL;
+	if (type == PRESTERA_PORT_TYPE_MAX)
+		return -EOPNOTSUPP;
+
+	for (mode = 0; mode < PRESTERA_LINK_MODE_MAX; mode++) {
+		if ((port_link_modes[mode].pr_mask &
+		    port->caps.supp_link_modes) &&
+		    type == port_link_modes[mode].port_type) {
+			new_mode = mode;
+		}
+	}
+
+	if (new_mode >= PRESTERA_LINK_MODE_MAX)
+		return -EINVAL;
+
+	port->caps.type = type;
+	port->autoneg = false;
+
+	return 0;
+}
+
+static void prestera_modes_to_eth(unsigned long *eth_modes, u64 link_modes,
+				  u8 fec, u8 type)
+{
+	u32 mode;
+
+	for (mode = 0; mode < PRESTERA_LINK_MODE_MAX; mode++) {
+		if ((port_link_modes[mode].pr_mask & link_modes) == 0)
+			continue;
+
+		if (type != PRESTERA_PORT_TYPE_NONE &&
+		    port_link_modes[mode].port_type != type)
+			continue;
+
+		__set_bit(port_link_modes[mode].eth_mode, eth_modes);
+	}
+
+	for (mode = 0; mode < PRESTERA_PORT_FEC_MAX; mode++) {
+		if ((port_fec_caps[mode].pr_fec & fec) == 0)
+			continue;
+
+		__set_bit(port_fec_caps[mode].eth_mode, eth_modes);
+	}
+}
+
+static void prestera_modes_from_eth(const unsigned long *eth_modes,
+				    u64 *link_modes, u8 *fec, u8 type)
+{
+	u64 adver_modes = 0;
+	u32 fec_modes = 0;
+	u32 mode;
+
+	for (mode = 0; mode < PRESTERA_LINK_MODE_MAX; mode++) {
+		if (!test_bit(port_link_modes[mode].eth_mode, eth_modes))
+			continue;
+
+		if (port_link_modes[mode].port_type != type)
+			continue;
+
+		adver_modes |= port_link_modes[mode].pr_mask;
+	}
+
+	for (mode = 0; mode < PRESTERA_PORT_FEC_MAX; mode++) {
+		if (!test_bit(port_fec_caps[mode].eth_mode, eth_modes))
+			continue;
+
+		fec_modes |= port_fec_caps[mode].pr_fec;
+	}
+
+	*link_modes = adver_modes;
+	*fec = fec_modes;
+}
+
+static void prestera_port_supp_types_get(struct ethtool_link_ksettings *ecmd,
+					 struct prestera_port *port)
+{
+	u32 mode;
+	u8 ptype;
+
+	for (mode = 0; mode < PRESTERA_LINK_MODE_MAX; mode++) {
+		if ((port_link_modes[mode].pr_mask &
+		    port->caps.supp_link_modes) == 0)
+			continue;
+
+		ptype = port_link_modes[mode].port_type;
+		__set_bit(port_types[ptype].eth_mode,
+			  ecmd->link_modes.supported);
+	}
+}
+
+static void prestera_port_remote_cap_get(struct ethtool_link_ksettings *ecmd,
+					 struct prestera_port *port)
+{
+	struct prestera_port_phy_state *state = &port->state_phy;
+	bool asym_pause;
+	bool pause;
+	u64 bitmap;
+	int err;
+
+	err = prestera_hw_port_phy_mode_get(port, NULL, &state->lmode_bmap,
+					    &state->remote_fc.pause,
+					    &state->remote_fc.asym_pause);
+	if (err)
+		netdev_warn(port->dev, "Remote link caps get failed %d",
+			    port->caps.transceiver);
+
+	bitmap = state->lmode_bmap;
+
+	prestera_modes_to_eth(ecmd->link_modes.lp_advertising,
+			      bitmap, 0, PRESTERA_PORT_TYPE_NONE);
+
+	if (!bitmap_empty(ecmd->link_modes.lp_advertising,
+			  __ETHTOOL_LINK_MODE_MASK_NBITS)) {
+		ethtool_link_ksettings_add_link_mode(ecmd,
+						     lp_advertising,
+						     Autoneg);
+	}
+
+	pause = state->remote_fc.pause;
+	asym_pause = state->remote_fc.asym_pause;
+
+	if (pause)
+		ethtool_link_ksettings_add_link_mode(ecmd,
+						     lp_advertising,
+						     Pause);
+	if (asym_pause)
+		ethtool_link_ksettings_add_link_mode(ecmd,
+						     lp_advertising,
+						     Asym_Pause);
+}
+
+static void prestera_port_link_mode_get(struct ethtool_link_ksettings *ecmd,
+					struct prestera_port *port)
+{
+	struct prestera_port_mac_state *state = &port->state_mac;
+	u32 speed;
+	u8 duplex;
+	int err;
+
+	if (!port->state_mac.oper)
+		return;
+
+	if (state->speed == SPEED_UNKNOWN || state->duplex == DUPLEX_UNKNOWN) {
+		err = prestera_hw_port_mac_mode_get(port, NULL, &speed,
+						    &duplex, NULL);
+		if (err) {
+			state->speed = SPEED_UNKNOWN;
+			state->duplex = DUPLEX_UNKNOWN;
+		} else {
+			state->speed = speed;
+			state->duplex = duplex == PRESTERA_PORT_DUPLEX_FULL ?
+					  DUPLEX_FULL : DUPLEX_HALF;
+		}
+	}
+
+	ecmd->base.speed = port->state_mac.speed;
+	ecmd->base.duplex = port->state_mac.duplex;
+}
+
+static void prestera_port_mdix_get(struct ethtool_link_ksettings *ecmd,
+				   struct prestera_port *port)
+{
+	struct prestera_port_phy_state *state = &port->state_phy;
+
+	if (prestera_hw_port_phy_mode_get(port,
+					  &state->mdix, NULL, NULL, NULL)) {
+		netdev_warn(port->dev, "MDIX params get failed");
+		state->mdix = ETH_TP_MDI_INVALID;
+	}
+
+	ecmd->base.eth_tp_mdix = port->state_phy.mdix;
+	ecmd->base.eth_tp_mdix_ctrl = port->cfg_phy.mdix;
+}
+
+static int
+prestera_ethtool_get_link_ksettings(struct net_device *dev,
+				    struct ethtool_link_ksettings *ecmd)
+{
+	struct prestera_port *port = netdev_priv(dev);
+
+	ethtool_link_ksettings_zero_link_mode(ecmd, supported);
+	ethtool_link_ksettings_zero_link_mode(ecmd, advertising);
+	ethtool_link_ksettings_zero_link_mode(ecmd, lp_advertising);
+	ecmd->base.speed = SPEED_UNKNOWN;
+	ecmd->base.duplex = DUPLEX_UNKNOWN;
+
+	if (port->phy_link)
+		return phylink_ethtool_ksettings_get(port->phy_link, ecmd);
+
+	ecmd->base.autoneg = port->autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE;
+
+	if (port->caps.type == PRESTERA_PORT_TYPE_TP) {
+		ethtool_link_ksettings_add_link_mode(ecmd, supported, Autoneg);
+
+		if (netif_running(dev) &&
+		    (port->autoneg ||
+		     port->caps.transceiver == PRESTERA_PORT_TCVR_COPPER))
+			ethtool_link_ksettings_add_link_mode(ecmd, advertising,
+							     Autoneg);
+	}
+
+	prestera_modes_to_eth(ecmd->link_modes.supported,
+			      port->caps.supp_link_modes,
+			      port->caps.supp_fec,
+			      port->caps.type);
+
+	prestera_port_supp_types_get(ecmd, port);
+
+	if (netif_carrier_ok(dev))
+		prestera_port_link_mode_get(ecmd, port);
+
+	ecmd->base.port = prestera_port_type_get(port);
+
+	if (port->autoneg) {
+		if (netif_running(dev))
+			prestera_modes_to_eth(ecmd->link_modes.advertising,
+					      port->adver_link_modes,
+					      port->adver_fec,
+					      port->caps.type);
+
+		if (netif_carrier_ok(dev) &&
+		    port->caps.transceiver == PRESTERA_PORT_TCVR_COPPER)
+			prestera_port_remote_cap_get(ecmd, port);
+	}
+
+	if (port->caps.type == PRESTERA_PORT_TYPE_TP &&
+	    port->caps.transceiver == PRESTERA_PORT_TCVR_COPPER)
+		prestera_port_mdix_get(ecmd, port);
+
+	return 0;
+}
+
+static int prestera_port_mdix_set(const struct ethtool_link_ksettings *ecmd,
+				  struct prestera_port *port)
+{
+	if (ecmd->base.eth_tp_mdix_ctrl != ETH_TP_MDI_INVALID &&
+	    port->caps.transceiver ==  PRESTERA_PORT_TCVR_COPPER &&
+	    port->caps.type == PRESTERA_PORT_TYPE_TP) {
+		port->cfg_phy.mdix = ecmd->base.eth_tp_mdix_ctrl;
+		return prestera_hw_port_phy_mode_set(port, port->cfg_phy.admin,
+						     port->autoneg,
+						     port->cfg_phy.mode,
+						     port->adver_link_modes,
+						     port->cfg_phy.mdix);
+	}
+	return 0;
+
+}
+
+static int prestera_port_link_mode_set(struct prestera_port *port,
+				       u32 speed, u8 duplex, u8 type)
+{
+	u32 new_mode = PRESTERA_LINK_MODE_MAX;
+	u32 mode;
+	int err;
+
+	for (mode = 0; mode < PRESTERA_LINK_MODE_MAX; mode++) {
+		if (speed != SPEED_UNKNOWN &&
+		    speed != port_link_modes[mode].speed)
+			continue;
+
+		if (duplex != DUPLEX_UNKNOWN &&
+		    duplex != port_link_modes[mode].duplex)
+			continue;
+
+		if (!(port_link_modes[mode].pr_mask &
+		    port->caps.supp_link_modes))
+			continue;
+
+		if (type != port_link_modes[mode].port_type)
+			continue;
+
+		new_mode = mode;
+		break;
+	}
+
+	if (new_mode == PRESTERA_LINK_MODE_MAX)
+		return -EOPNOTSUPP;
+
+	err = prestera_hw_port_phy_mode_set(port, port->cfg_phy.admin,
+					    false, new_mode, 0,
+					    port->cfg_phy.mdix);
+	if (err)
+		return err;
+
+	port->adver_fec = BIT(PRESTERA_PORT_FEC_OFF);
+	port->adver_link_modes = 0;
+	port->cfg_phy.mode = new_mode;
+	port->autoneg = false;
+
+	return 0;
+}
+
+static int
+prestera_port_speed_duplex_set(const struct ethtool_link_ksettings *ecmd,
+			       struct prestera_port *port)
+{
+	u8 duplex = DUPLEX_UNKNOWN;
+
+	if (ecmd->base.duplex != DUPLEX_UNKNOWN)
+		duplex = ecmd->base.duplex == DUPLEX_FULL ?
+			 PRESTERA_PORT_DUPLEX_FULL : PRESTERA_PORT_DUPLEX_HALF;
+
+	return prestera_port_link_mode_set(port, ecmd->base.speed, duplex,
+					   port->caps.type);
+}
+
+static int
+prestera_ethtool_set_link_ksettings(struct net_device *dev,
+				    const struct ethtool_link_ksettings *ecmd)
+{
+	struct prestera_port *port = netdev_priv(dev);
+	u64 adver_modes;
+	u8 adver_fec;
+	int err;
+
+	if (port->phy_link)
+		return phylink_ethtool_ksettings_set(port->phy_link, ecmd);
+
+	err = prestera_port_type_set(ecmd, port);
+	if (err)
+		return err;
+
+	if (port->caps.transceiver == PRESTERA_PORT_TCVR_COPPER) {
+		err = prestera_port_mdix_set(ecmd, port);
+		if (err)
+			return err;
+	}
+
+	prestera_modes_from_eth(ecmd->link_modes.advertising, &adver_modes,
+				&adver_fec, port->caps.type);
+
+	if (ecmd->base.autoneg == AUTONEG_ENABLE)
+		err = prestera_port_autoneg_set(port, adver_modes);
+	else
+		err = prestera_port_speed_duplex_set(ecmd, port);
+
+	return err;
+}
+
+static int prestera_ethtool_get_fecparam(struct net_device *dev,
+					 struct ethtool_fecparam *fecparam)
+{
+	struct prestera_port *port = netdev_priv(dev);
+	u8 active;
+	u32 mode;
+	int err;
+
+	err = prestera_hw_port_mac_mode_get(port, NULL, NULL, NULL, &active);
+	if (err)
+		return err;
+
+	fecparam->fec = 0;
+
+	for (mode = 0; mode < PRESTERA_PORT_FEC_MAX; mode++) {
+		if ((port_fec_caps[mode].pr_fec & port->caps.supp_fec) == 0)
+			continue;
+
+		fecparam->fec |= port_fec_caps[mode].eth_fec;
+	}
+
+	if (active < PRESTERA_PORT_FEC_MAX)
+		fecparam->active_fec = port_fec_caps[active].eth_fec;
+	else
+		fecparam->active_fec = ETHTOOL_FEC_AUTO;
+
+	return 0;
+}
+
+static int prestera_ethtool_set_fecparam(struct net_device *dev,
+					 struct ethtool_fecparam *fecparam)
+{
+	struct prestera_port *port = netdev_priv(dev);
+	struct prestera_port_mac_config cfg_mac;
+	u32 mode;
+	u8 fec;
+
+	if (port->autoneg) {
+		netdev_err(dev, "FEC set is not allowed while autoneg is on\n");
+		return -EINVAL;
+	}
+
+	if (port->caps.transceiver == PRESTERA_PORT_TCVR_SFP) {
+		netdev_err(dev, "FEC set is not allowed on non-SFP ports\n");
+		return -EINVAL;
+	}
+
+	fec = PRESTERA_PORT_FEC_MAX;
+	for (mode = 0; mode < PRESTERA_PORT_FEC_MAX; mode++) {
+		if ((port_fec_caps[mode].eth_fec & fecparam->fec) &&
+		    (port_fec_caps[mode].pr_fec & port->caps.supp_fec)) {
+			fec = mode;
+			break;
+		}
+	}
+
+	prestera_port_cfg_mac_read(port, &cfg_mac);
+
+	if (fec == cfg_mac.fec)
+		return 0;
+
+	if (fec == PRESTERA_PORT_FEC_MAX) {
+		netdev_err(dev, "Unsupported FEC requested");
+		return -EINVAL;
+	}
+
+	cfg_mac.fec = fec;
+
+	return prestera_port_cfg_mac_write(port, &cfg_mac);
+}
+
+static int prestera_ethtool_get_sset_count(struct net_device *dev, int sset)
+{
+	switch (sset) {
+	case ETH_SS_STATS:
+		return PRESTERA_STATS_CNT;
+	default:
+		return -EOPNOTSUPP;
+	}
+}
+
+static void prestera_ethtool_get_strings(struct net_device *dev,
+					 u32 stringset, u8 *data)
+{
+	if (stringset != ETH_SS_STATS)
+		return;
+
+	memcpy(data, prestera_cnt_name, sizeof(prestera_cnt_name));
+}
+
+static void prestera_ethtool_get_stats(struct net_device *dev,
+				       struct ethtool_stats *stats, u64 *data)
+{
+	struct prestera_port *port = netdev_priv(dev);
+	struct prestera_port_stats *port_stats;
+
+	port_stats = &port->cached_hw_stats.stats;
+
+	memcpy(data, port_stats, sizeof(*port_stats));
+}
+
+static int prestera_ethtool_nway_reset(struct net_device *dev)
+{
+	struct prestera_port *port = netdev_priv(dev);
+
+	if (netif_running(dev) &&
+	    port->caps.transceiver == PRESTERA_PORT_TCVR_COPPER &&
+	    port->caps.type == PRESTERA_PORT_TYPE_TP)
+		return prestera_hw_port_autoneg_restart(port);
+
+	return -EINVAL;
+}
+
+const struct ethtool_ops prestera_ethtool_ops = {
+	.get_drvinfo = prestera_ethtool_get_drvinfo,
+	.get_link_ksettings = prestera_ethtool_get_link_ksettings,
+	.set_link_ksettings = prestera_ethtool_set_link_ksettings,
+	.get_fecparam = prestera_ethtool_get_fecparam,
+	.set_fecparam = prestera_ethtool_set_fecparam,
+	.get_sset_count = prestera_ethtool_get_sset_count,
+	.get_strings = prestera_ethtool_get_strings,
+	.get_ethtool_stats = prestera_ethtool_get_stats,
+	.get_link = ethtool_op_get_link,
+	.nway_reset = prestera_ethtool_nway_reset
+};