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Subject[net-next 4/6] net: marvell: prestera: Add ethtool interface support
Date
The ethtool API provides support for the configuration of the following
features: speed and duplex, auto-negotiation, MDI-x, forward error
correction, port media type. The API also provides information about the
port status, hardware and software statistic. The following limitation
exists:

- port media type should be configured before speed setting
- ethtool -m option is not supported
- ethtool -p option is not supported
- ethtool -r option is supported for RJ45 port only
- the following combination of parameters is not supported:

ethtool -s sw1pX port XX autoneg on

- forward error correction feature is supported only on SFP ports, 10G
speed

- auto-negotiation and MDI-x features are not supported on
Copper-to-Fiber SFP module

Signed-off-by: Andrii Savka <andrii.savka@plvision.eu>
Signed-off-by: Serhiy Boiko <serhiy.boiko@plvision.eu>
Signed-off-by: Vadym Kochan <vadym.kochan@plvision.eu>
---
.../net/ethernet/marvell/prestera/Makefile | 2 +-
.../net/ethernet/marvell/prestera/prestera.h | 3 +
.../marvell/prestera/prestera_ethtool.c | 737 ++++++++++++++++++
.../marvell/prestera/prestera_ethtool.h | 37 +
.../ethernet/marvell/prestera/prestera_hw.c | 293 +++++++
.../ethernet/marvell/prestera/prestera_hw.h | 65 +-
.../ethernet/marvell/prestera/prestera_main.c | 42 +-
7 files changed, 1171 insertions(+), 8 deletions(-)
create mode 100644 drivers/net/ethernet/marvell/prestera/prestera_ethtool.c
create mode 100644 drivers/net/ethernet/marvell/prestera/prestera_ethtool.h

diff --git a/drivers/net/ethernet/marvell/prestera/Makefile b/drivers/net/ethernet/marvell/prestera/Makefile
index babd71fba809..7684e7047562 100644
--- a/drivers/net/ethernet/marvell/prestera/Makefile
+++ b/drivers/net/ethernet/marvell/prestera/Makefile
@@ -1,6 +1,6 @@
# SPDX-License-Identifier: GPL-2.0
obj-$(CONFIG_PRESTERA) += prestera.o
prestera-objs := prestera_main.o prestera_hw.o prestera_dsa.o \
- prestera_rxtx.o prestera_devlink.o
+ prestera_rxtx.o prestera_devlink.o prestera_ethtool.o

obj-$(CONFIG_PRESTERA_PCI) += prestera_pci.o
diff --git a/drivers/net/ethernet/marvell/prestera/prestera.h b/drivers/net/ethernet/marvell/prestera/prestera.h
index f8abaaff5f21..ee834e824521 100644
--- a/drivers/net/ethernet/marvell/prestera/prestera.h
+++ b/drivers/net/ethernet/marvell/prestera/prestera.h
@@ -173,4 +173,7 @@ void prestera_device_unregister(struct prestera_device *dev);
struct prestera_port *prestera_port_find_by_hwid(struct prestera_switch *sw,
u32 dev_id, u32 hw_id);

+int prestera_port_autoneg_set(struct prestera_port *port, bool enable,
+ u64 adver_link_modes, u8 adver_fec);
+
#endif /* _PRESTERA_H_ */
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 000000000000..c99d91f2bf62
--- /dev/null
+++ b/drivers/net/ethernet/marvell/prestera/prestera_ethtool.c
@@ -0,0 +1,737 @@
+// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
+/* Copyright (c) 2019-2020 Marvell International Ltd. All rights reserved */
+
+#include <linux/kernel.h>
+#include <linux/netdevice.h>
+#include <linux/ethtool.h>
+
+#include "prestera.h"
+#include "prestera_hw.h"
+#include "prestera_ethtool.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),
+};
+
+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;
+
+ strlcpy(drvinfo->driver, driver_kind, sizeof(drvinfo->driver));
+ strlcpy(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;
+ int err;
+
+ 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)
+ err = prestera_hw_port_link_mode_set(port, new_mode);
+ else
+ err = -EINVAL;
+
+ if (!err) {
+ port->caps.type = type;
+ port->autoneg = false;
+ }
+
+ return err;
+}
+
+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)
+{
+ 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;
+ *link_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 |= port_fec_caps[mode].pr_fec;
+ }
+}
+
+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)
+{
+ bool asym_pause;
+ bool pause;
+ u64 bitmap;
+
+ if (!prestera_hw_port_remote_cap_get(port, &bitmap)) {
+ 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);
+ }
+ }
+
+ if (prestera_hw_port_remote_fc_get(port, &pause, &asym_pause))
+ return;
+ 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_speed_get(struct ethtool_link_ksettings *ecmd,
+ struct prestera_port *port)
+{
+ u32 speed;
+ int err;
+
+ err = prestera_hw_port_speed_get(port, &speed);
+ ecmd->base.speed = !err ? speed : SPEED_UNKNOWN;
+}
+
+static void prestera_port_duplex_get(struct ethtool_link_ksettings *ecmd,
+ struct prestera_port *port)
+{
+ u8 duplex;
+
+ if (!prestera_hw_port_duplex_get(port, &duplex)) {
+ ecmd->base.duplex = duplex == PRESTERA_PORT_DUPLEX_FULL ?
+ DUPLEX_FULL : DUPLEX_HALF;
+ } else {
+ ecmd->base.duplex = DUPLEX_UNKNOWN;
+ }
+}
+
+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.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_speed_get(ecmd, port);
+ prestera_port_duplex_get(ecmd, port);
+ } else {
+ ecmd->base.speed = SPEED_UNKNOWN;
+ ecmd->base.duplex = DUPLEX_UNKNOWN;
+ }
+
+ 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_hw_port_mdix_get(port, &ecmd->base.eth_tp_mdix,
+ &ecmd->base.eth_tp_mdix_ctrl);
+
+ 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)
+ return prestera_hw_port_mdix_set(port,
+ ecmd->base.eth_tp_mdix_ctrl);
+
+ 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;
+
+ for (mode = 0; mode < PRESTERA_LINK_MODE_MAX; mode++) {
+ if (speed != port_link_modes[mode].speed)
+ continue;
+ if (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;
+
+ return prestera_hw_port_link_mode_set(port, new_mode);
+}
+
+static int
+prestera_port_speed_duplex_set(const struct ethtool_link_ksettings *ecmd,
+ struct prestera_port *port)
+{
+ u32 curr_mode;
+ u8 duplex;
+ u32 speed;
+ int err;
+
+ err = prestera_hw_port_link_mode_get(port, &curr_mode);
+ if (err || curr_mode >= PRESTERA_LINK_MODE_MAX)
+ return -EINVAL;
+
+ if (ecmd->base.duplex != DUPLEX_UNKNOWN)
+ duplex = ecmd->base.duplex == DUPLEX_FULL ?
+ PRESTERA_PORT_DUPLEX_FULL : PRESTERA_PORT_DUPLEX_HALF;
+ else
+ duplex = port_link_modes[curr_mode].duplex;
+
+ if (ecmd->base.speed != SPEED_UNKNOWN)
+ speed = ecmd->base.speed;
+ else
+ speed = port_link_modes[curr_mode].speed;
+
+ return prestera_port_link_mode_set(port, speed, duplex,
+ port->caps.type);
+}
+
+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 = 0;
+ u8 adver_fec = 0;
+ int err;
+
+ 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);
+
+ err = prestera_port_autoneg_set(port,
+ ecmd->base.autoneg == AUTONEG_ENABLE,
+ adver_modes, adver_fec);
+ if (err)
+ return err;
+
+ if (ecmd->base.autoneg == AUTONEG_DISABLE) {
+ err = prestera_port_speed_duplex_set(ecmd, port);
+ if (err)
+ return err;
+ }
+
+ return 0;
+}
+
+int prestera_ethtool_get_fecparam(struct net_device *dev,
+ struct ethtool_fecparam *fecparam)
+{
+ struct prestera_port *port = netdev_priv(dev);
+ u32 mode;
+ u8 active;
+ int err;
+
+ err = prestera_hw_port_fec_get(port, &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;
+}
+
+int prestera_ethtool_set_fecparam(struct net_device *dev,
+ struct ethtool_fecparam *fecparam)
+{
+ struct prestera_port *port = netdev_priv(dev);
+ u8 fec, active;
+ u32 mode;
+ int err;
+
+ if (port->autoneg) {
+ netdev_err(dev, "FEC set is not allowed while autoneg is on\n");
+ return -EINVAL;
+ }
+
+ err = prestera_hw_port_fec_get(port, &active);
+ if (err)
+ return err;
+
+ 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;
+ }
+ }
+
+ if (fec == active)
+ return 0;
+
+ if (fec == PRESTERA_PORT_FEC_MAX)
+ return -EOPNOTSUPP;
+
+ return prestera_hw_port_fec_set(port, fec);
+}
+
+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;
+ }
+}
+
+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));
+}
+
+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((u8 *)data, port_stats, sizeof(*port_stats));
+}
+
+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;
+}
diff --git a/drivers/net/ethernet/marvell/prestera/prestera_ethtool.h b/drivers/net/ethernet/marvell/prestera/prestera_ethtool.h
new file mode 100644
index 000000000000..e6a51e9020a4
--- /dev/null
+++ b/drivers/net/ethernet/marvell/prestera/prestera_ethtool.h
@@ -0,0 +1,37 @@
+/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
+ *
+ * Copyright (c) 2019-2020 Marvell International Ltd. All rights reserved.
+ *
+ */
+#ifndef __PRESTERA_ETHTOOL_H_
+#define __PRESTERA_ETHTOOL_H_
+
+#include <linux/netdevice.h>
+#include <linux/ethtool.h>
+
+void prestera_ethtool_get_drvinfo(struct net_device *dev,
+ struct ethtool_drvinfo *drvinfo);
+
+int prestera_ethtool_get_link_ksettings(struct net_device *dev,
+ struct ethtool_link_ksettings *ecmd);
+
+int prestera_ethtool_set_link_ksettings(struct net_device *dev,
+ const struct ethtool_link_ksettings *ecmd);
+
+int prestera_ethtool_get_fecparam(struct net_device *dev,
+ struct ethtool_fecparam *fecparam);
+
+int prestera_ethtool_set_fecparam(struct net_device *dev,
+ struct ethtool_fecparam *fecparam);
+
+int prestera_ethtool_get_sset_count(struct net_device *dev, int sset);
+
+void prestera_ethtool_get_strings(struct net_device *dev, u32 stringset,
+ u8 *data);
+
+void prestera_ethtool_get_stats(struct net_device *dev,
+ struct ethtool_stats *stats, u64 *data);
+
+int prestera_ethtool_nway_reset(struct net_device *dev);
+
+#endif /* _PRESTERA_ETHTOOL_H_ */
diff --git a/drivers/net/ethernet/marvell/prestera/prestera_hw.c b/drivers/net/ethernet/marvell/prestera/prestera_hw.c
index 3aa3974f957a..ba87279e16e1 100644
--- a/drivers/net/ethernet/marvell/prestera/prestera_hw.c
+++ b/drivers/net/ethernet/marvell/prestera/prestera_hw.c
@@ -31,9 +31,18 @@ enum {
PRESTERA_CMD_PORT_ATTR_ADMIN_STATE = 1,
PRESTERA_CMD_PORT_ATTR_MTU = 3,
PRESTERA_CMD_PORT_ATTR_MAC = 4,
+ PRESTERA_CMD_PORT_ATTR_SPEED = 5,
PRESTERA_CMD_PORT_ATTR_CAPABILITY = 9,
+ PRESTERA_CMD_PORT_ATTR_REMOTE_CAPABILITY = 10,
+ PRESTERA_CMD_PORT_ATTR_REMOTE_FC = 11,
+ PRESTERA_CMD_PORT_ATTR_LINK_MODE = 12,
+ PRESTERA_CMD_PORT_ATTR_TYPE = 13,
+ PRESTERA_CMD_PORT_ATTR_FEC = 14,
PRESTERA_CMD_PORT_ATTR_AUTONEG = 15,
+ PRESTERA_CMD_PORT_ATTR_DUPLEX = 16,
PRESTERA_CMD_PORT_ATTR_STATS = 17,
+ PRESTERA_CMD_PORT_ATTR_MDIX = 18,
+ PRESTERA_CMD_PORT_ATTR_AUTONEG_RESTART = 19,
};

enum {
@@ -47,6 +56,13 @@ enum {
PRESTERA_CMD_ACK_MAX
};

+enum {
+ PRESTERA_PORT_TP_NA,
+ PRESTERA_PORT_TP_MDI,
+ PRESTERA_PORT_TP_MDIX,
+ PRESTERA_PORT_TP_AUTO
+};
+
enum {
PRESTERA_PORT_GOOD_OCTETS_RCV_CNT,
PRESTERA_PORT_BAD_OCTETS_RCV_CNT,
@@ -82,6 +98,13 @@ enum {
PRESTERA_PORT_CNT_MAX,
};

+enum {
+ PRESTERA_FC_NONE,
+ PRESTERA_FC_SYMMETRIC,
+ PRESTERA_FC_ASYMMETRIC,
+ PRESTERA_FC_SYMM_ASYMM,
+};
+
struct prestera_fw_event_handler {
struct list_head list;
enum prestera_event_type type;
@@ -136,11 +159,23 @@ struct prestera_msg_port_cap_param {
u8 transceiver;
};

+struct prestera_msg_port_mdix_param {
+ u8 status;
+ u8 admin_mode;
+};
+
union prestera_msg_port_param {
u8 admin_state;
u8 oper_state;
u32 mtu;
u8 mac[ETH_ALEN];
+ u32 speed;
+ u32 link_mode;
+ u8 type;
+ u8 duplex;
+ u8 fec;
+ u8 fc;
+ struct prestera_msg_port_mdix_param mdix;
struct prestera_msg_port_autoneg_param autoneg;
struct prestera_msg_port_cap_param cap;
};
@@ -472,6 +507,232 @@ int prestera_hw_port_cap_get(const struct prestera_port *port,
return err;
}

+int prestera_hw_port_remote_cap_get(const struct prestera_port *port,
+ u64 *link_mode_bitmap)
+{
+ struct prestera_msg_port_attr_resp resp;
+ struct prestera_msg_port_attr_req req = {
+ .attr = PRESTERA_CMD_PORT_ATTR_REMOTE_CAPABILITY,
+ .port = port->hw_id,
+ .dev = port->dev_id
+ };
+ int err;
+
+ err = prestera_cmd_ret(port->sw, PRESTERA_CMD_TYPE_PORT_ATTR_GET,
+ &req.cmd, sizeof(req), &resp.ret, sizeof(resp));
+ if (err)
+ return err;
+
+ *link_mode_bitmap = resp.param.cap.link_mode;
+
+ return err;
+}
+
+int prestera_hw_port_remote_fc_get(const struct prestera_port *port,
+ bool *pause, bool *asym_pause)
+{
+ struct prestera_msg_port_attr_resp resp;
+ struct prestera_msg_port_attr_req req = {
+ .attr = PRESTERA_CMD_PORT_ATTR_REMOTE_FC,
+ .port = port->hw_id,
+ .dev = port->dev_id
+ };
+ int err;
+
+ err = prestera_cmd_ret(port->sw, PRESTERA_CMD_TYPE_PORT_ATTR_GET,
+ &req.cmd, sizeof(req), &resp.ret, sizeof(resp));
+ if (err)
+ return err;
+
+ switch (resp.param.fc) {
+ case PRESTERA_FC_SYMMETRIC:
+ *pause = true;
+ *asym_pause = false;
+ break;
+ case PRESTERA_FC_ASYMMETRIC:
+ *pause = false;
+ *asym_pause = true;
+ break;
+ case PRESTERA_FC_SYMM_ASYMM:
+ *pause = true;
+ *asym_pause = true;
+ break;
+ default:
+ *pause = false;
+ *asym_pause = false;
+ };
+
+ return err;
+}
+
+int prestera_hw_port_type_get(const struct prestera_port *port, u8 *type)
+{
+ struct prestera_msg_port_attr_resp resp;
+ struct prestera_msg_port_attr_req req = {
+ .attr = PRESTERA_CMD_PORT_ATTR_TYPE,
+ .port = port->hw_id,
+ .dev = port->dev_id
+ };
+ int err;
+
+ err = prestera_cmd_ret(port->sw, PRESTERA_CMD_TYPE_PORT_ATTR_GET,
+ &req.cmd, sizeof(req), &resp.ret, sizeof(resp));
+ if (err)
+ return err;
+
+ *type = resp.param.type;
+
+ return err;
+}
+
+int prestera_hw_port_fec_get(const struct prestera_port *port, u8 *fec)
+{
+ struct prestera_msg_port_attr_resp resp;
+ struct prestera_msg_port_attr_req req = {
+ .attr = PRESTERA_CMD_PORT_ATTR_FEC,
+ .port = port->hw_id,
+ .dev = port->dev_id
+ };
+ int err;
+
+ err = prestera_cmd_ret(port->sw, PRESTERA_CMD_TYPE_PORT_ATTR_GET,
+ &req.cmd, sizeof(req), &resp.ret, sizeof(resp));
+ if (err)
+ return err;
+
+ *fec = resp.param.fec;
+
+ return err;
+}
+
+int prestera_hw_port_fec_set(const struct prestera_port *port, u8 fec)
+{
+ struct prestera_msg_port_attr_req req = {
+ .attr = PRESTERA_CMD_PORT_ATTR_FEC,
+ .port = port->hw_id,
+ .dev = port->dev_id,
+ .param = {.fec = fec}
+ };
+
+ return prestera_cmd(port->sw, PRESTERA_CMD_TYPE_PORT_ATTR_SET,
+ &req.cmd, sizeof(req));
+}
+
+static u8 prestera_hw_mdix_to_eth(u8 mode)
+{
+ switch (mode) {
+ case PRESTERA_PORT_TP_MDI:
+ return ETH_TP_MDI;
+ case PRESTERA_PORT_TP_MDIX:
+ return ETH_TP_MDI_X;
+ case PRESTERA_PORT_TP_AUTO:
+ return ETH_TP_MDI_AUTO;
+ }
+
+ return ETH_TP_MDI_INVALID;
+}
+
+static u8 prestera_hw_mdix_from_eth(u8 mode)
+{
+ switch (mode) {
+ case ETH_TP_MDI:
+ return PRESTERA_PORT_TP_MDI;
+ case ETH_TP_MDI_X:
+ return PRESTERA_PORT_TP_MDIX;
+ case ETH_TP_MDI_AUTO:
+ return PRESTERA_PORT_TP_AUTO;
+ }
+
+ return PRESTERA_PORT_TP_NA;
+}
+
+int prestera_hw_port_mdix_get(const struct prestera_port *port, u8 *status,
+ u8 *admin_mode)
+{
+ struct prestera_msg_port_attr_resp resp;
+ struct prestera_msg_port_attr_req req = {
+ .attr = PRESTERA_CMD_PORT_ATTR_MDIX,
+ .port = port->hw_id,
+ .dev = port->dev_id
+ };
+ int err;
+
+ err = prestera_cmd_ret(port->sw, PRESTERA_CMD_TYPE_PORT_ATTR_GET,
+ &req.cmd, sizeof(req), &resp.ret, sizeof(resp));
+ if (err)
+ return err;
+
+ *status = prestera_hw_mdix_to_eth(resp.param.mdix.status);
+ *admin_mode = prestera_hw_mdix_to_eth(resp.param.mdix.admin_mode);
+
+ return 0;
+}
+
+int prestera_hw_port_mdix_set(const struct prestera_port *port, u8 mode)
+{
+ struct prestera_msg_port_attr_req req = {
+ .attr = PRESTERA_CMD_PORT_ATTR_MDIX,
+ .port = port->hw_id,
+ .dev = port->dev_id
+ };
+
+ req.param.mdix.admin_mode = prestera_hw_mdix_from_eth(mode);
+
+ return prestera_cmd(port->sw, PRESTERA_CMD_TYPE_PORT_ATTR_SET,
+ &req.cmd, sizeof(req));
+}
+
+int prestera_hw_port_link_mode_set(const struct prestera_port *port, u32 mode)
+{
+ struct prestera_msg_port_attr_req req = {
+ .attr = PRESTERA_CMD_PORT_ATTR_LINK_MODE,
+ .port = port->hw_id,
+ .dev = port->dev_id,
+ .param = {.link_mode = mode}
+ };
+
+ return prestera_cmd(port->sw, PRESTERA_CMD_TYPE_PORT_ATTR_SET,
+ &req.cmd, sizeof(req));
+}
+
+int prestera_hw_port_link_mode_get(const struct prestera_port *port, u32 *mode)
+{
+ struct prestera_msg_port_attr_resp resp;
+ struct prestera_msg_port_attr_req req = {
+ .attr = PRESTERA_CMD_PORT_ATTR_LINK_MODE,
+ .port = port->hw_id,
+ .dev = port->dev_id
+ };
+ int err;
+
+ err = prestera_cmd_ret(port->sw, PRESTERA_CMD_TYPE_PORT_ATTR_GET,
+ &req.cmd, sizeof(req), &resp.ret, sizeof(resp));
+
+ *mode = resp.param.link_mode;
+
+ return err;
+}
+
+int prestera_hw_port_speed_get(const struct prestera_port *port, u32 *speed)
+{
+ struct prestera_msg_port_attr_resp resp;
+ struct prestera_msg_port_attr_req req = {
+ .attr = PRESTERA_CMD_PORT_ATTR_SPEED,
+ .port = port->hw_id,
+ .dev = port->dev_id
+ };
+ int err;
+
+ err = prestera_cmd_ret(port->sw, PRESTERA_CMD_TYPE_PORT_ATTR_GET,
+ &req.cmd, sizeof(req), &resp.ret, sizeof(resp));
+ if (err)
+ return err;
+
+ *speed = resp.param.speed;
+
+ return err;
+}
+
int prestera_hw_port_autoneg_set(const struct prestera_port *port,
bool autoneg, u64 link_modes, u8 fec)
{
@@ -489,6 +750,38 @@ int prestera_hw_port_autoneg_set(const struct prestera_port *port,
&req.cmd, sizeof(req));
}

+int prestera_hw_port_autoneg_restart(struct prestera_port *port)
+{
+ struct prestera_msg_port_attr_req req = {
+ .attr = PRESTERA_CMD_PORT_ATTR_AUTONEG_RESTART,
+ .port = port->hw_id,
+ .dev = port->dev_id,
+ };
+
+ return prestera_cmd(port->sw, PRESTERA_CMD_TYPE_PORT_ATTR_SET,
+ &req.cmd, sizeof(req));
+}
+
+int prestera_hw_port_duplex_get(const struct prestera_port *port, u8 *duplex)
+{
+ struct prestera_msg_port_attr_resp resp;
+ struct prestera_msg_port_attr_req req = {
+ .attr = PRESTERA_CMD_PORT_ATTR_DUPLEX,
+ .port = port->hw_id,
+ .dev = port->dev_id
+ };
+ int err;
+
+ err = prestera_cmd_ret(port->sw, PRESTERA_CMD_TYPE_PORT_ATTR_GET,
+ &req.cmd, sizeof(req), &resp.ret, sizeof(resp));
+ if (err)
+ return err;
+
+ *duplex = resp.param.duplex;
+
+ return err;
+}
+
int prestera_hw_port_stats_get(const struct prestera_port *port,
struct prestera_port_stats *st)
{
diff --git a/drivers/net/ethernet/marvell/prestera/prestera_hw.h b/drivers/net/ethernet/marvell/prestera/prestera_hw.h
index acb0e31d6684..af2141834bbf 100644
--- a/drivers/net/ethernet/marvell/prestera/prestera_hw.h
+++ b/drivers/net/ethernet/marvell/prestera/prestera_hw.h
@@ -9,19 +9,65 @@

#include <linux/types.h>

+enum {
+ PRESTERA_LINK_MODE_10baseT_Half,
+ PRESTERA_LINK_MODE_10baseT_Full,
+ PRESTERA_LINK_MODE_100baseT_Half,
+ PRESTERA_LINK_MODE_100baseT_Full,
+ PRESTERA_LINK_MODE_1000baseT_Half,
+ PRESTERA_LINK_MODE_1000baseT_Full,
+ PRESTERA_LINK_MODE_1000baseX_Full,
+ PRESTERA_LINK_MODE_1000baseKX_Full,
+ PRESTERA_LINK_MODE_2500baseX_Full,
+ PRESTERA_LINK_MODE_10GbaseKR_Full,
+ PRESTERA_LINK_MODE_10GbaseSR_Full,
+ PRESTERA_LINK_MODE_10GbaseLR_Full,
+ PRESTERA_LINK_MODE_20GbaseKR2_Full,
+ PRESTERA_LINK_MODE_25GbaseCR_Full,
+ PRESTERA_LINK_MODE_25GbaseKR_Full,
+ PRESTERA_LINK_MODE_25GbaseSR_Full,
+ PRESTERA_LINK_MODE_40GbaseKR4_Full,
+ PRESTERA_LINK_MODE_40GbaseCR4_Full,
+ PRESTERA_LINK_MODE_40GbaseSR4_Full,
+ PRESTERA_LINK_MODE_50GbaseCR2_Full,
+ PRESTERA_LINK_MODE_50GbaseKR2_Full,
+ PRESTERA_LINK_MODE_50GbaseSR2_Full,
+ PRESTERA_LINK_MODE_100GbaseKR4_Full,
+ PRESTERA_LINK_MODE_100GbaseSR4_Full,
+ PRESTERA_LINK_MODE_100GbaseCR4_Full,
+ PRESTERA_LINK_MODE_MAX,
+};
+
enum {
PRESTERA_PORT_TYPE_NONE,
PRESTERA_PORT_TYPE_TP,
-
+ PRESTERA_PORT_TYPE_AUI,
+ PRESTERA_PORT_TYPE_MII,
+ PRESTERA_PORT_TYPE_FIBRE,
+ PRESTERA_PORT_TYPE_BNC,
+ PRESTERA_PORT_TYPE_DA,
+ PRESTERA_PORT_TYPE_OTHER,
PRESTERA_PORT_TYPE_MAX,
};

enum {
- PRESTERA_PORT_FEC_OFF,
+ PRESTERA_PORT_TCVR_COPPER,
+ PRESTERA_PORT_TCVR_SFP,
+ PRESTERA_PORT_TCVR_MAX,
+};

+enum {
+ PRESTERA_PORT_FEC_OFF,
+ PRESTERA_PORT_FEC_BASER,
+ PRESTERA_PORT_FEC_RS,
PRESTERA_PORT_FEC_MAX,
};

+enum {
+ PRESTERA_PORT_DUPLEX_HALF,
+ PRESTERA_PORT_DUPLEX_FULL
+};
+
struct prestera_switch;
struct prestera_port;
struct prestera_port_stats;
@@ -49,10 +95,25 @@ int prestera_hw_port_mac_set(const struct prestera_port *port, char *mac);
int prestera_hw_port_mac_get(const struct prestera_port *port, char *mac);
int prestera_hw_port_cap_get(const struct prestera_port *port,
struct prestera_port_caps *caps);
+int prestera_hw_port_remote_cap_get(const struct prestera_port *port,
+ u64 *link_mode_bitmap);
+int prestera_hw_port_remote_fc_get(const struct prestera_port *port,
+ bool *pause, bool *asym_pause);
+int prestera_hw_port_type_get(const struct prestera_port *port, u8 *type);
+int prestera_hw_port_fec_get(const struct prestera_port *port, u8 *fec);
+int prestera_hw_port_fec_set(const struct prestera_port *port, u8 fec);
int prestera_hw_port_autoneg_set(const struct prestera_port *port,
bool autoneg, u64 link_modes, u8 fec);
+int prestera_hw_port_autoneg_restart(struct prestera_port *port);
+int prestera_hw_port_duplex_get(const struct prestera_port *port, u8 *duplex);
int prestera_hw_port_stats_get(const struct prestera_port *port,
struct prestera_port_stats *stats);
+int prestera_hw_port_link_mode_set(const struct prestera_port *port, u32 mode);
+int prestera_hw_port_link_mode_get(const struct prestera_port *port, u32 *mode);
+int prestera_hw_port_mdix_get(const struct prestera_port *port, u8 *status,
+ u8 *admin_mode);
+int prestera_hw_port_mdix_set(const struct prestera_port *port, u8 mode);
+int prestera_hw_port_speed_get(const struct prestera_port *port, u32 *speed);

/* Event handlers */
int prestera_hw_event_handler_register(struct prestera_switch *sw,
diff --git a/drivers/net/ethernet/marvell/prestera/prestera_main.c b/drivers/net/ethernet/marvell/prestera/prestera_main.c
index ddab9422fe5e..e536f87724fd 100644
--- a/drivers/net/ethernet/marvell/prestera/prestera_main.c
+++ b/drivers/net/ethernet/marvell/prestera/prestera_main.c
@@ -5,6 +5,7 @@
#include <linux/module.h>
#include <linux/list.h>
#include <linux/netdevice.h>
+#include <linux/ethtool.h>
#include <linux/netdev_features.h>
#include <linux/etherdevice.h>
#include <linux/jiffies.h>
@@ -15,6 +16,7 @@
#include "prestera_hw.h"
#include "prestera_rxtx.h"
#include "prestera_devlink.h"
+#include "prestera_ethtool.h"

#define PRESTERA_MTU_DEFAULT 1536

@@ -189,22 +191,38 @@ static const struct net_device_ops netdev_ops = {
.ndo_get_devlink_port = prestera_devlink_get_port,
};

-static int prestera_port_autoneg_set(struct prestera_port *port, bool enable,
- u64 link_modes, u8 fec)
+int prestera_port_autoneg_set(struct prestera_port *port, bool enable,
+ u64 adver_link_modes, u8 adver_fec)
{
bool refresh = false;
+ u64 link_modes;
int err = 0;
+ u8 fec;

if (port->caps.type != PRESTERA_PORT_TYPE_TP)
return enable ? -EINVAL : 0;

- if (port->adver_link_modes != link_modes || port->adver_fec != fec) {
- port->adver_fec = fec ?: BIT(PRESTERA_PORT_FEC_OFF);
+ if (!enable)
+ goto set_autoneg;
+
+ link_modes = port->caps.supp_link_modes & adver_link_modes;
+ fec = port->caps.supp_fec & adver_fec;
+
+ if (!link_modes && !fec)
+ return -EOPNOTSUPP;
+
+ if (link_modes && port->adver_link_modes != link_modes) {
port->adver_link_modes = link_modes;
refresh = true;
}

- if (port->autoneg == enable && !(port->autoneg && refresh))
+ if (fec && port->adver_fec != fec) {
+ port->adver_fec = fec;
+ refresh = true;
+ }
+
+set_autoneg:
+ if (port->autoneg == enable && !refresh)
return 0;

err = prestera_hw_port_autoneg_set(port, enable, port->adver_link_modes,
@@ -216,6 +234,19 @@ static int prestera_port_autoneg_set(struct prestera_port *port, bool enable,
return 0;
}

+static const struct ethtool_ops 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
+};
+
static int prestera_port_create(struct prestera_switch *sw, u32 id)
{
struct prestera_port *port;
@@ -245,6 +276,7 @@ static int prestera_port_create(struct prestera_switch *sw, u32 id)

dev->features |= NETIF_F_NETNS_LOCAL;
dev->netdev_ops = &netdev_ops;
+ dev->ethtool_ops = &ethtool_ops;

netif_carrier_off(dev);

--
2.17.1
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