// SPDX-License-Identifier: GPL-2.0-only
/* Ethtool support for Altera Triple-Speed Ethernet MAC driver
* Copyright (C) 2008-2014 Altera Corporation. All rights reserved
*
* Contributors:
* Dalon Westergreen
* Thomas Chou
* Ian Abbott
* Yuriy Kozlov
* Tobias Klauser
* Andriy Smolskyy
* Roman Bulgakov
* Dmytro Mytarchuk
*
* Original driver contributed by SLS.
* Major updates contributed by GlobalLogic
*/
#include <linux/ethtool.h>
#include <linux/kernel.h>
#include <linux/netdevice.h>
#include <linux/phy.h>
#include "altera_tse.h"
#define TSE_STATS_LEN 31
#define TSE_NUM_REGS 128
static char const stat_gstrings[][ETH_GSTRING_LEN] = {
"tx_packets",
"rx_packets",
"rx_crc_errors",
"rx_align_errors",
"tx_bytes",
"rx_bytes",
"tx_pause",
"rx_pause",
"rx_errors",
"tx_errors",
"rx_unicast",
"rx_multicast",
"rx_broadcast",
"tx_discards",
"tx_unicast",
"tx_multicast",
"tx_broadcast",
"ether_drops",
"rx_total_bytes",
"rx_total_packets",
"rx_undersize",
"rx_oversize",
"rx_64_bytes",
"rx_65_127_bytes",
"rx_128_255_bytes",
"rx_256_511_bytes",
"rx_512_1023_bytes",
"rx_1024_1518_bytes",
"rx_gte_1519_bytes",
"rx_jabbers",
"rx_runts",
};
static void tse_get_drvinfo(struct net_device *dev,
struct ethtool_drvinfo *info)
{
struct altera_tse_private *priv = netdev_priv(dev);
u32 rev = ioread32(&priv->mac_dev->megacore_revision);
strcpy(info->driver, "altera_tse");
snprintf(info->fw_version, ETHTOOL_FWVERS_LEN, "v%d.%d",
rev & 0xFFFF, (rev & 0xFFFF0000) >> 16);
sprintf(info->bus_info, "platform");
}
/* Fill in a buffer with the strings which correspond to the
* stats
*/
static void tse_gstrings(struct net_device *dev, u32 stringset, u8 *buf)
{
memcpy(buf, stat_gstrings, TSE_STATS_LEN * ETH_GSTRING_LEN);
}
static void tse_fill_stats(struct net_device *dev, struct ethtool_stats *dummy,
u64 *buf)
{
struct altera_tse_private *priv = netdev_priv(dev);
u64 ext;
buf[0] = csrrd32(priv->mac_dev,
tse_csroffs(frames_transmitted_ok));
buf[1] = csrrd32(priv->mac_dev,
tse_csroffs(frames_received_ok));
buf[2] = csrrd32(priv->mac_dev,
tse_csroffs(frames_check_sequence_errors));
buf[3] = csrrd32(priv->mac_dev,
tse_csroffs(alignment_errors));
/* Extended aOctetsTransmittedOK counter */
ext = (u64) csrrd32(priv->mac_dev,
tse_csroffs(msb_octets_transmitted_ok)) << 32;
ext |= csrrd32(priv->mac_dev,
tse_csroffs(octets_transmitted_ok));
buf[4] = ext;
/* Extended aOctetsReceivedOK counter */
ext = (u64) csrrd32(priv->mac_dev,
tse_csroffs(msb_octets_received_ok)) << 32;
ext |= csrrd32(priv->mac_dev,
tse_csroffs(octets_received_ok));
buf[5] = ext;
buf[6] = csrrd32(priv->mac_dev,
tse_csroffs(tx_pause_mac_ctrl_frames));
buf[7] = csrrd32(priv->mac_dev,
tse_csroffs(rx_pause_mac_ctrl_frames));
buf[8] = csrrd32(priv->mac_dev,
tse_csroffs(if_in_errors));
buf[9] = csrrd32(priv->mac_dev,
tse_csroffs(if_out_errors));
buf[10] = csrrd32(priv->mac_dev,
tse_csroffs(if_in_ucast_pkts));
buf[11] = csrrd32(priv->mac_dev,
tse_csroffs(if_in_multicast_pkts));
buf[12] = csrrd32(priv->mac_dev,
tse_csroffs(if_in_broadcast_pkts));
buf[13] = csrrd32(priv->mac_dev,
tse_csroffs(if_out_discards));
buf[14] = csrrd32(priv->mac_dev,
tse_csroffs(if_out_ucast_pkts));
buf[15] = csrrd32(priv->mac_dev,
tse_csroffs(if_out_multicast_pkts));
buf[16] = csrrd32(priv->mac_dev,
tse_csroffs(if_out_broadcast_pkts));
buf[17] = csrrd32(priv->mac_dev,
tse_csroffs(ether_stats_drop_events));
/* Extended etherStatsOctets counter */
ext = (u64) csrrd32(priv->mac_dev,
tse_csroffs(msb_ether_stats_octets)) << 32;
ext |= csrrd32(priv->mac_dev,
tse_csroffs(ether_stats_octets));
buf[18] = ext;
buf[19] = csrrd32(priv->mac_dev,
tse_csroffs(ether_stats_pkts));
buf[20] = csrrd32(priv->mac_dev,
tse_csroffs(ether_stats_undersize_pkts));
buf[21] = csrrd32(priv->mac_dev,
tse_csroffs(ether_stats_oversize_pkts));
buf[22] = csrrd32(priv->mac_dev,
tse_csroffs(ether_stats_pkts_64_octets));
buf[23] = csrrd32(priv->mac_dev,
tse_csroffs(ether_stats_pkts_65to127_octets));
buf[24] = csrrd32(priv->mac_dev,
tse_csroffs(ether_stats_pkts_128to255_octets));
buf[25] = csrrd32(priv->mac_dev,
tse_csroffs(ether_stats_pkts_256to511_octets));
buf[26] = csrrd32(priv->mac_dev,
tse_csroffs(ether_stats_pkts_512to1023_octets));
buf[27] = csrrd32(priv->mac_dev,
tse_csroffs(ether_stats_pkts_1024to1518_octets));
buf[28] = csrrd32(priv->mac_dev,
tse_csroffs(ether_stats_pkts_1519tox_octets));
buf[29] = csrrd32(priv->mac_dev,
tse_csroffs(ether_stats_jabbers));
buf[30] = csrrd32(priv->mac_dev,
tse_csroffs(ether_stats_fragments));
}
static int tse_sset_count(struct net_device *dev, int sset)
{
switch (sset) {
case ETH_SS_STATS:
return TSE_STATS_LEN;
default:
return -EOPNOTSUPP;
}
}
static u32 tse_get_msglevel(struct net_device *dev)
{
struct altera_tse_private *priv = netdev_priv(dev);
return priv->msg_enable;
}
static void tse_set_msglevel(struct net_device *dev, uint32_t data)
{
struct altera_tse_private *priv = netdev_priv(dev);
priv->msg_enable = data;
}
static int tse_reglen(struct net_device *dev)
{
return TSE_NUM_REGS * sizeof(u32);
}
static void tse_get_regs(struct net_device *dev, struct ethtool_regs *regs,
void *regbuf)
{
struct altera_tse_private *priv = netdev_priv(dev);
u32 *buf = regbuf;
int i;
/* Set version to a known value, so ethtool knows
* how to do any special formatting of this data.
* This version number will need to change if and
* when this register table is changed.
*
* version[31:0] = 1: Dump the first 128 TSE Registers
* Upper bits are all 0 by default
*
* Upper 16-bits will indicate feature presence for
* Ethtool register decoding in future version.
*/
regs->version = 1;
for (i = 0; i < TSE_NUM_REGS; i++)
buf[i] = csrrd32(priv->mac_dev, i * 4);
}
static int tse_ethtool_set_link_ksettings(struct net_device *dev,
const struct ethtool_link_ksettings *cmd)
{
struct altera_tse_private *priv = netdev_priv(dev);
return phylink_ethtool_ksettings_set(priv->phylink, cmd);
}
static int tse_ethtool_get_link_ksettings(struct net_device *dev,
struct ethtool_link_ksettings *cmd)
{
struct altera_tse_private *priv = netdev_priv(dev);
return phylink_ethtool_ksettings_get(priv->phylink, cmd);
}
static const struct ethtool_ops tse_ethtool_ops = {
.get_drvinfo = tse_get_drvinfo,
.get_regs_len = tse_reglen,
.get_regs = tse_get_regs,
.get_link = ethtool_op_get_link,
.get_strings = tse_gstrings,
.get_sset_count = tse_sset_count,
.get_ethtool_stats = tse_fill_stats,
.get_msglevel = tse_get_msglevel,
.set_msglevel = tse_set_msglevel,
.get_link_ksettings = tse_ethtool_get_link_ksettings,
.set_link_ksettings = tse_ethtool_set_link_ksettings,
.get_ts_info = ethtool_op_get_ts_info,
};
void altera_tse_set_ethtool_ops(struct net_device *netdev)
{
netdev->ethtool_ops = &tse_ethtool_ops;
}
