#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;
}
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
};
