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// SPDX-License-Identifier: GPL-2.0
/* Marvell Octeon EP (EndPoint) Ethernet Driver
*
* Copyright (C) 2020 Marvell.
*
*/
#include <linux/pci.h>
#include <linux/netdevice.h>
#include <linux/ethtool.h>
#include "octep_config.h"
#include "octep_main.h"
#include "octep_ctrl_net.h"
static const char octep_gstrings_global_stats[][ETH_GSTRING_LEN] = {
"rx_packets",
"tx_packets",
"rx_bytes",
"tx_bytes",
"rx_alloc_errors",
"tx_busy_errors",
"rx_dropped",
"tx_dropped",
"tx_hw_pkts",
"tx_hw_octs",
"tx_hw_bcast",
"tx_hw_mcast",
"tx_hw_underflow",
"tx_hw_control",
"tx_less_than_64",
"tx_equal_64",
"tx_equal_65_to_127",
"tx_equal_128_to_255",
"tx_equal_256_to_511",
"tx_equal_512_to_1023",
"tx_equal_1024_to_1518",
"tx_greater_than_1518",
"rx_hw_pkts",
"rx_hw_bytes",
"rx_hw_bcast",
"rx_hw_mcast",
"rx_pause_pkts",
"rx_pause_bytes",
"rx_dropped_pkts_fifo_full",
"rx_dropped_bytes_fifo_full",
"rx_err_pkts",
};
#define OCTEP_GLOBAL_STATS_CNT (sizeof(octep_gstrings_global_stats) / ETH_GSTRING_LEN)
static const char octep_gstrings_tx_q_stats[][ETH_GSTRING_LEN] = {
"tx_packets_posted[Q-%u]",
"tx_packets_completed[Q-%u]",
"tx_bytes[Q-%u]",
"tx_busy[Q-%u]",
};
#define OCTEP_TX_Q_STATS_CNT (sizeof(octep_gstrings_tx_q_stats) / ETH_GSTRING_LEN)
static const char octep_gstrings_rx_q_stats[][ETH_GSTRING_LEN] = {
"rx_packets[Q-%u]",
"rx_bytes[Q-%u]",
"rx_alloc_errors[Q-%u]",
};
#define OCTEP_RX_Q_STATS_CNT (sizeof(octep_gstrings_rx_q_stats) / ETH_GSTRING_LEN)
static void octep_get_drvinfo(struct net_device *netdev,
struct ethtool_drvinfo *info)
{
struct octep_device *oct = netdev_priv(netdev);
strscpy(info->driver, OCTEP_DRV_NAME, sizeof(info->driver));
strscpy(info->bus_info, pci_name(oct->pdev), sizeof(info->bus_info));
}
static void octep_get_strings(struct net_device *netdev,
u32 stringset, u8 *data)
{
struct octep_device *oct = netdev_priv(netdev);
u16 num_queues = CFG_GET_PORTS_ACTIVE_IO_RINGS(oct->conf);
char *strings = (char *)data;
int i, j;
switch (stringset) {
case ETH_SS_STATS:
for (i = 0; i < OCTEP_GLOBAL_STATS_CNT; i++) {
snprintf(strings, ETH_GSTRING_LEN,
octep_gstrings_global_stats[i]);
strings += ETH_GSTRING_LEN;
}
for (i = 0; i < num_queues; i++) {
for (j = 0; j < OCTEP_TX_Q_STATS_CNT; j++) {
snprintf(strings, ETH_GSTRING_LEN,
octep_gstrings_tx_q_stats[j], i);
strings += ETH_GSTRING_LEN;
}
}
for (i = 0; i < num_queues; i++) {
for (j = 0; j < OCTEP_RX_Q_STATS_CNT; j++) {
snprintf(strings, ETH_GSTRING_LEN,
octep_gstrings_rx_q_stats[j], i);
strings += ETH_GSTRING_LEN;
}
}
break;
default:
break;
}
}
static int octep_get_sset_count(struct net_device *netdev, int sset)
{
struct octep_device *oct = netdev_priv(netdev);
u16 num_queues = CFG_GET_PORTS_ACTIVE_IO_RINGS(oct->conf);
switch (sset) {
case ETH_SS_STATS:
return OCTEP_GLOBAL_STATS_CNT + (num_queues *
(OCTEP_TX_Q_STATS_CNT + OCTEP_RX_Q_STATS_CNT));
break;
default:
return -EOPNOTSUPP;
}
}
static void
octep_get_ethtool_stats(struct net_device *netdev,
struct ethtool_stats *stats, u64 *data)
{
struct octep_device *oct = netdev_priv(netdev);
struct octep_iface_tx_stats *iface_tx_stats;
struct octep_iface_rx_stats *iface_rx_stats;
u64 rx_packets, rx_bytes;
u64 tx_packets, tx_bytes;
u64 rx_alloc_errors, tx_busy_errors;
int q, i;
rx_packets = 0;
rx_bytes = 0;
tx_packets = 0;
tx_bytes = 0;
rx_alloc_errors = 0;
tx_busy_errors = 0;
tx_packets = 0;
tx_bytes = 0;
rx_packets = 0;
rx_bytes = 0;
octep_get_if_stats(oct);
iface_tx_stats = &oct->iface_tx_stats;
iface_rx_stats = &oct->iface_rx_stats;
for (q = 0; q < oct->num_oqs; q++) {
struct octep_iq *iq = oct->iq[q];
struct octep_oq *oq = oct->oq[q];
tx_packets += iq->stats.instr_completed;
tx_bytes += iq->stats.bytes_sent;
tx_busy_errors += iq->stats.tx_busy;
rx_packets += oq->stats.packets;
rx_bytes += oq->stats.bytes;
rx_alloc_errors += oq->stats.alloc_failures;
}
i = 0;
data[i++] = rx_packets;
data[i++] = tx_packets;
data[i++] = rx_bytes;
data[i++] = tx_bytes;
data[i++] = rx_alloc_errors;
data[i++] = tx_busy_errors;
data[i++] = iface_rx_stats->dropped_pkts_fifo_full +
iface_rx_stats->err_pkts;
data[i++] = iface_tx_stats->xscol +
iface_tx_stats->xsdef;
data[i++] = iface_tx_stats->pkts;
data[i++] = iface_tx_stats->octs;
data[i++] = iface_tx_stats->bcst;
data[i++] = iface_tx_stats->mcst;
data[i++] = iface_tx_stats->undflw;
data[i++] = iface_tx_stats->ctl;
data[i++] = iface_tx_stats->hist_lt64;
data[i++] = iface_tx_stats->hist_eq64;
data[i++] = iface_tx_stats->hist_65to127;
data[i++] = iface_tx_stats->hist_128to255;
data[i++] = iface_tx_stats->hist_256to511;
data[i++] = iface_tx_stats->hist_512to1023;
data[i++] = iface_tx_stats->hist_1024to1518;
data[i++] = iface_tx_stats->hist_gt1518;
data[i++] = iface_rx_stats->pkts;
data[i++] = iface_rx_stats->octets;
data[i++] = iface_rx_stats->mcast_pkts;
data[i++] = iface_rx_stats->bcast_pkts;
data[i++] = iface_rx_stats->pause_pkts;
data[i++] = iface_rx_stats->pause_octets;
data[i++] = iface_rx_stats->dropped_pkts_fifo_full;
data[i++] = iface_rx_stats->dropped_octets_fifo_full;
data[i++] = iface_rx_stats->err_pkts;
/* Per Tx Queue stats */
for (q = 0; q < oct->num_iqs; q++) {
struct octep_iq *iq = oct->iq[q];
data[i++] = iq->stats.instr_posted;
data[i++] = iq->stats.instr_completed;
data[i++] = iq->stats.bytes_sent;
data[i++] = iq->stats.tx_busy;
}
/* Per Rx Queue stats */
for (q = 0; q < oct->num_oqs; q++) {
struct octep_oq *oq = oct->oq[q];
data[i++] = oq->stats.packets;
data[i++] = oq->stats.bytes;
data[i++] = oq->stats.alloc_failures;
}
}
#define OCTEP_SET_ETHTOOL_LINK_MODES_BITMAP(octep_speeds, ksettings, name) \
{ \
if ((octep_speeds) & BIT(OCTEP_LINK_MODE_10GBASE_T)) \
ethtool_link_ksettings_add_link_mode(ksettings, name, 10000baseT_Full); \
if ((octep_speeds) & BIT(OCTEP_LINK_MODE_10GBASE_R)) \
ethtool_link_ksettings_add_link_mode(ksettings, name, 10000baseR_FEC); \
if ((octep_speeds) & BIT(OCTEP_LINK_MODE_10GBASE_CR)) \
ethtool_link_ksettings_add_link_mode(ksettings, name, 10000baseCR_Full); \
if ((octep_speeds) & BIT(OCTEP_LINK_MODE_10GBASE_KR)) \
ethtool_link_ksettings_add_link_mode(ksettings, name, 10000baseKR_Full); \
if ((octep_speeds) & BIT(OCTEP_LINK_MODE_10GBASE_LR)) \
ethtool_link_ksettings_add_link_mode(ksettings, name, 10000baseLR_Full); \
if ((octep_speeds) & BIT(OCTEP_LINK_MODE_10GBASE_SR)) \
ethtool_link_ksettings_add_link_mode(ksettings, name, 10000baseSR_Full); \
if ((octep_speeds) & BIT(OCTEP_LINK_MODE_25GBASE_CR)) \
ethtool_link_ksettings_add_link_mode(ksettings, name, 25000baseCR_Full); \
if ((octep_speeds) & BIT(OCTEP_LINK_MODE_25GBASE_KR)) \
ethtool_link_ksettings_add_link_mode(ksettings, name, 25000baseKR_Full); \
if ((octep_speeds) & BIT(OCTEP_LINK_MODE_25GBASE_SR)) \
ethtool_link_ksettings_add_link_mode(ksettings, name, 25000baseSR_Full); \
if ((octep_speeds) & BIT(OCTEP_LINK_MODE_40GBASE_CR4)) \
ethtool_link_ksettings_add_link_mode(ksettings, name, 40000baseCR4_Full); \
if ((octep_speeds) & BIT(OCTEP_LINK_MODE_40GBASE_KR4)) \
ethtool_link_ksettings_add_link_mode(ksettings, name, 40000baseKR4_Full); \
if ((octep_speeds) & BIT(OCTEP_LINK_MODE_40GBASE_LR4)) \
ethtool_link_ksettings_add_link_mode(ksettings, name, 40000baseLR4_Full); \
if ((octep_speeds) & BIT(OCTEP_LINK_MODE_40GBASE_SR4)) \
ethtool_link_ksettings_add_link_mode(ksettings, name, 40000baseSR4_Full); \
if ((octep_speeds) & BIT(OCTEP_LINK_MODE_50GBASE_CR2)) \
ethtool_link_ksettings_add_link_mode(ksettings, name, 50000baseCR2_Full); \
if ((octep_speeds) & BIT(OCTEP_LINK_MODE_50GBASE_KR2)) \
ethtool_link_ksettings_add_link_mode(ksettings, name, 50000baseKR2_Full); \
if ((octep_speeds) & BIT(OCTEP_LINK_MODE_50GBASE_SR2)) \
ethtool_link_ksettings_add_link_mode(ksettings, name, 50000baseSR2_Full); \
if ((octep_speeds) & BIT(OCTEP_LINK_MODE_50GBASE_CR)) \
ethtool_link_ksettings_add_link_mode(ksettings, name, 50000baseCR_Full); \
if ((octep_speeds) & BIT(OCTEP_LINK_MODE_50GBASE_KR)) \
ethtool_link_ksettings_add_link_mode(ksettings, name, 50000baseKR_Full); \
if ((octep_speeds) & BIT(OCTEP_LINK_MODE_50GBASE_LR)) \
ethtool_link_ksettings_add_link_mode(ksettings, name, 50000baseLR_ER_FR_Full); \
if ((octep_speeds) & BIT(OCTEP_LINK_MODE_50GBASE_SR)) \
ethtool_link_ksettings_add_link_mode(ksettings, name, 50000baseSR_Full); \
if ((octep_speeds) & BIT(OCTEP_LINK_MODE_100GBASE_CR4)) \
ethtool_link_ksettings_add_link_mode(ksettings, name, 100000baseCR4_Full); \
if ((octep_speeds) & BIT(OCTEP_LINK_MODE_100GBASE_KR4)) \
ethtool_link_ksettings_add_link_mode(ksettings, name, 100000baseKR4_Full); \
if ((octep_speeds) & BIT(OCTEP_LINK_MODE_100GBASE_LR4)) \
ethtool_link_ksettings_add_link_mode(ksettings, name, 100000baseLR4_ER4_Full); \
if ((octep_speeds) & BIT(OCTEP_LINK_MODE_100GBASE_SR4)) \
ethtool_link_ksettings_add_link_mode(ksettings, name, 100000baseSR4_Full); \
}
static int octep_get_link_ksettings(struct net_device *netdev,
struct ethtool_link_ksettings *cmd)
{
struct octep_device *oct = netdev_priv(netdev);
struct octep_iface_link_info *link_info;
u32 advertised_modes, supported_modes;
ethtool_link_ksettings_zero_link_mode(cmd, supported);
ethtool_link_ksettings_zero_link_mode(cmd, advertising);
octep_get_link_info(oct);
advertised_modes = oct->link_info.advertised_modes;
supported_modes = oct->link_info.supported_modes;
link_info = &oct->link_info;
OCTEP_SET_ETHTOOL_LINK_MODES_BITMAP(supported_modes, cmd, supported);
OCTEP_SET_ETHTOOL_LINK_MODES_BITMAP(advertised_modes, cmd, advertising);
if (link_info->autoneg) {
if (link_info->autoneg & OCTEP_LINK_MODE_AUTONEG_SUPPORTED)
ethtool_link_ksettings_add_link_mode(cmd, supported, Autoneg);
if (link_info->autoneg & OCTEP_LINK_MODE_AUTONEG_ADVERTISED) {
ethtool_link_ksettings_add_link_mode(cmd, advertising, Autoneg);
cmd->base.autoneg = AUTONEG_ENABLE;
} else {
cmd->base.autoneg = AUTONEG_DISABLE;
}
} else {
cmd->base.autoneg = AUTONEG_DISABLE;
}
if (link_info->pause) {
if (link_info->pause & OCTEP_LINK_MODE_PAUSE_SUPPORTED)
ethtool_link_ksettings_add_link_mode(cmd, supported, Pause);
if (link_info->pause & OCTEP_LINK_MODE_PAUSE_ADVERTISED)
ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause);
}
cmd->base.port = PORT_FIBRE;
ethtool_link_ksettings_add_link_mode(cmd, supported, FIBRE);
ethtool_link_ksettings_add_link_mode(cmd, advertising, FIBRE);
if (netif_carrier_ok(netdev)) {
cmd->base.speed = link_info->speed;
cmd->base.duplex = DUPLEX_FULL;
} else {
cmd->base.speed = SPEED_UNKNOWN;
cmd->base.duplex = DUPLEX_UNKNOWN;
}
return 0;
}
static int octep_set_link_ksettings(struct net_device *netdev,
const struct ethtool_link_ksettings *cmd)
{
struct octep_device *oct = netdev_priv(netdev);
struct octep_iface_link_info link_info_new;
struct octep_iface_link_info *link_info;
u64 advertised = 0;
u8 autoneg = 0;
int err;
link_info = &oct->link_info;
memcpy(&link_info_new, link_info, sizeof(struct octep_iface_link_info));
/* Only Full duplex is supported;
* Assume full duplex when duplex is unknown.
*/
if (cmd->base.duplex != DUPLEX_FULL &&
cmd->base.duplex != DUPLEX_UNKNOWN)
return -EOPNOTSUPP;
if (cmd->base.autoneg == AUTONEG_ENABLE) {
if (!(link_info->autoneg & OCTEP_LINK_MODE_AUTONEG_SUPPORTED))
return -EOPNOTSUPP;
autoneg = 1;
}
if (!bitmap_subset(cmd->link_modes.advertising,
cmd->link_modes.supported,
__ETHTOOL_LINK_MODE_MASK_NBITS))
return -EINVAL;
if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
10000baseT_Full))
advertised |= BIT(OCTEP_LINK_MODE_10GBASE_T);
if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
10000baseR_FEC))
advertised |= BIT(OCTEP_LINK_MODE_10GBASE_R);
if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
10000baseCR_Full))
advertised |= BIT(OCTEP_LINK_MODE_10GBASE_CR);
if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
10000baseKR_Full))
advertised |= BIT(OCTEP_LINK_MODE_10GBASE_KR);
if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
10000baseLR_Full))
advertised |= BIT(OCTEP_LINK_MODE_10GBASE_LR);
if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
10000baseSR_Full))
advertised |= BIT(OCTEP_LINK_MODE_10GBASE_SR);
if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
25000baseCR_Full))
advertised |= BIT(OCTEP_LINK_MODE_25GBASE_CR);
if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
25000baseKR_Full))
advertised |= BIT(OCTEP_LINK_MODE_25GBASE_KR);
if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
25000baseSR_Full))
advertised |= BIT(OCTEP_LINK_MODE_25GBASE_SR);
if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
40000baseCR4_Full))
advertised |= BIT(OCTEP_LINK_MODE_40GBASE_CR4);
if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
40000baseKR4_Full))
advertised |= BIT(OCTEP_LINK_MODE_40GBASE_KR4);
if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
40000baseLR4_Full))
advertised |= BIT(OCTEP_LINK_MODE_40GBASE_LR4);
if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
40000baseSR4_Full))
advertised |= BIT(OCTEP_LINK_MODE_40GBASE_SR4);
if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
50000baseCR2_Full))
advertised |= BIT(OCTEP_LINK_MODE_50GBASE_CR2);
if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
50000baseKR2_Full))
advertised |= BIT(OCTEP_LINK_MODE_50GBASE_KR2);
if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
50000baseSR2_Full))
advertised |= BIT(OCTEP_LINK_MODE_50GBASE_SR2);
if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
50000baseCR_Full))
advertised |= BIT(OCTEP_LINK_MODE_50GBASE_CR);
if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
50000baseKR_Full))
advertised |= BIT(OCTEP_LINK_MODE_50GBASE_KR);
if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
50000baseLR_ER_FR_Full))
advertised |= BIT(OCTEP_LINK_MODE_50GBASE_LR);
if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
50000baseSR_Full))
advertised |= BIT(OCTEP_LINK_MODE_50GBASE_SR);
if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
100000baseCR4_Full))
advertised |= BIT(OCTEP_LINK_MODE_100GBASE_CR4);
if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
100000baseKR4_Full))
advertised |= BIT(OCTEP_LINK_MODE_100GBASE_KR4);
if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
100000baseLR4_ER4_Full))
advertised |= BIT(OCTEP_LINK_MODE_100GBASE_LR4);
if (ethtool_link_ksettings_test_link_mode(cmd, advertising,
100000baseSR4_Full))
advertised |= BIT(OCTEP_LINK_MODE_100GBASE_SR4);
if (advertised == link_info->advertised_modes &&
cmd->base.speed == link_info->speed &&
cmd->base.autoneg == link_info->autoneg)
return 0;
link_info_new.advertised_modes = advertised;
link_info_new.speed = cmd->base.speed;
link_info_new.autoneg = autoneg;
err = octep_set_link_info(oct, &link_info_new);
if (err)
return err;
memcpy(link_info, &link_info_new, sizeof(struct octep_iface_link_info));
return 0;
}
static const struct ethtool_ops octep_ethtool_ops = {
.get_drvinfo = octep_get_drvinfo,
.get_link = ethtool_op_get_link,
.get_strings = octep_get_strings,
.get_sset_count = octep_get_sset_count,
.get_ethtool_stats = octep_get_ethtool_stats,
.get_link_ksettings = octep_get_link_ksettings,
.set_link_ksettings = octep_set_link_ksettings,
};
void octep_set_ethtool_ops(struct net_device *netdev)
{
netdev->ethtool_ops = &octep_ethtool_ops;
}
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