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// SPDX-License-Identifier: GPL-2.0
/* Texas Instruments ICSSG Ethernet driver
*
* Copyright (C) 2018-2022 Texas Instruments Incorporated - https://www.ti.com/
*
*/
#include "icssg_prueth.h"
#include "icssg_stats.h"
static void emac_get_drvinfo(struct net_device *ndev,
struct ethtool_drvinfo *info)
{
struct prueth_emac *emac = netdev_priv(ndev);
struct prueth *prueth = emac->prueth;
strscpy(info->driver, dev_driver_string(prueth->dev),
sizeof(info->driver));
strscpy(info->bus_info, dev_name(prueth->dev), sizeof(info->bus_info));
}
static u32 emac_get_msglevel(struct net_device *ndev)
{
struct prueth_emac *emac = netdev_priv(ndev);
return emac->msg_enable;
}
static void emac_set_msglevel(struct net_device *ndev, u32 value)
{
struct prueth_emac *emac = netdev_priv(ndev);
emac->msg_enable = value;
}
static int emac_get_link_ksettings(struct net_device *ndev,
struct ethtool_link_ksettings *ecmd)
{
return phy_ethtool_get_link_ksettings(ndev, ecmd);
}
static int emac_set_link_ksettings(struct net_device *ndev,
const struct ethtool_link_ksettings *ecmd)
{
return phy_ethtool_set_link_ksettings(ndev, ecmd);
}
static int emac_get_eee(struct net_device *ndev, struct ethtool_keee *edata)
{
if (!ndev->phydev)
return -EOPNOTSUPP;
return phy_ethtool_get_eee(ndev->phydev, edata);
}
static int emac_set_eee(struct net_device *ndev, struct ethtool_keee *edata)
{
if (!ndev->phydev)
return -EOPNOTSUPP;
return phy_ethtool_set_eee(ndev->phydev, edata);
}
static int emac_nway_reset(struct net_device *ndev)
{
return phy_ethtool_nway_reset(ndev);
}
static int emac_get_sset_count(struct net_device *ndev, int stringset)
{
switch (stringset) {
case ETH_SS_STATS:
return ICSSG_NUM_ETHTOOL_STATS;
default:
return -EOPNOTSUPP;
}
}
static void emac_get_strings(struct net_device *ndev, u32 stringset, u8 *data)
{
u8 *p = data;
int i;
switch (stringset) {
case ETH_SS_STATS:
for (i = 0; i < ARRAY_SIZE(icssg_all_stats); i++) {
if (!icssg_all_stats[i].standard_stats) {
memcpy(p, icssg_all_stats[i].name,
ETH_GSTRING_LEN);
p += ETH_GSTRING_LEN;
}
}
break;
default:
break;
}
}
static void emac_get_ethtool_stats(struct net_device *ndev,
struct ethtool_stats *stats, u64 *data)
{
struct prueth_emac *emac = netdev_priv(ndev);
int i;
emac_update_hardware_stats(emac);
for (i = 0; i < ARRAY_SIZE(icssg_all_stats); i++)
if (!icssg_all_stats[i].standard_stats)
*(data++) = emac->stats[i];
}
static int emac_get_ts_info(struct net_device *ndev,
struct ethtool_ts_info *info)
{
struct prueth_emac *emac = netdev_priv(ndev);
info->so_timestamping =
SOF_TIMESTAMPING_TX_HARDWARE |
SOF_TIMESTAMPING_TX_SOFTWARE |
SOF_TIMESTAMPING_RX_HARDWARE |
SOF_TIMESTAMPING_RX_SOFTWARE |
SOF_TIMESTAMPING_SOFTWARE |
SOF_TIMESTAMPING_RAW_HARDWARE;
info->phc_index = icss_iep_get_ptp_clock_idx(emac->iep);
info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON);
info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) | BIT(HWTSTAMP_FILTER_ALL);
return 0;
}
static int emac_set_channels(struct net_device *ndev,
struct ethtool_channels *ch)
{
struct prueth_emac *emac = netdev_priv(ndev);
/* Check if interface is up. Can change the num queues when
* the interface is down.
*/
if (netif_running(emac->ndev))
return -EBUSY;
emac->tx_ch_num = ch->tx_count;
if (emac->is_sr1)
emac->tx_ch_num++;
return 0;
}
static void emac_get_channels(struct net_device *ndev,
struct ethtool_channels *ch)
{
struct prueth_emac *emac = netdev_priv(ndev);
ch->max_rx = 1;
ch->max_tx = PRUETH_MAX_TX_QUEUES;
/* Disable multiple TX channels due to timeouts
* when using more than one queue */
if (emac->is_sr1)
ch->max_tx = 1;
ch->rx_count = 1;
ch->tx_count = emac->tx_ch_num;
if (emac->is_sr1)
ch->tx_count--;
}
static const struct ethtool_rmon_hist_range emac_rmon_ranges[] = {
{ 0, 64},
{ 65, 128},
{ 129, 256},
{ 257, 512},
{ 513, PRUETH_MAX_PKT_SIZE},
{}
};
static void emac_get_rmon_stats(struct net_device *ndev,
struct ethtool_rmon_stats *rmon_stats,
const struct ethtool_rmon_hist_range **ranges)
{
struct prueth_emac *emac = netdev_priv(ndev);
*ranges = emac_rmon_ranges;
rmon_stats->undersize_pkts = emac_get_stat_by_name(emac, "rx_bucket1_frames") -
emac_get_stat_by_name(emac, "rx_64B_frames");
rmon_stats->hist[0] = emac_get_stat_by_name(emac, "rx_bucket1_frames");
rmon_stats->hist[1] = emac_get_stat_by_name(emac, "rx_bucket2_frames");
rmon_stats->hist[2] = emac_get_stat_by_name(emac, "rx_bucket3_frames");
rmon_stats->hist[3] = emac_get_stat_by_name(emac, "rx_bucket4_frames");
rmon_stats->hist[4] = emac_get_stat_by_name(emac, "rx_bucket5_frames");
rmon_stats->hist_tx[0] = emac_get_stat_by_name(emac, "tx_bucket1_frames");
rmon_stats->hist_tx[1] = emac_get_stat_by_name(emac, "tx_bucket2_frames");
rmon_stats->hist_tx[2] = emac_get_stat_by_name(emac, "tx_bucket3_frames");
rmon_stats->hist_tx[3] = emac_get_stat_by_name(emac, "tx_bucket4_frames");
rmon_stats->hist_tx[4] = emac_get_stat_by_name(emac, "tx_bucket5_frames");
}
static int emac_get_coalesce(struct net_device *ndev,
struct ethtool_coalesce *coal,
struct kernel_ethtool_coalesce *kernel_coal,
struct netlink_ext_ack *extack)
{
struct prueth_emac *emac = netdev_priv(ndev);
struct prueth_tx_chn *tx_chn;
tx_chn = &emac->tx_chns[0];
coal->rx_coalesce_usecs = emac->rx_pace_timeout_ns / 1000;
coal->tx_coalesce_usecs = tx_chn->tx_pace_timeout_ns / 1000;
return 0;
}
static int emac_get_per_queue_coalesce(struct net_device *ndev, u32 queue,
struct ethtool_coalesce *coal)
{
struct prueth_emac *emac = netdev_priv(ndev);
struct prueth_tx_chn *tx_chn;
if (queue >= PRUETH_MAX_TX_QUEUES)
return -EINVAL;
tx_chn = &emac->tx_chns[queue];
coal->tx_coalesce_usecs = tx_chn->tx_pace_timeout_ns / 1000;
return 0;
}
static int emac_set_coalesce(struct net_device *ndev,
struct ethtool_coalesce *coal,
struct kernel_ethtool_coalesce *kernel_coal,
struct netlink_ext_ack *extack)
{
struct prueth_emac *emac = netdev_priv(ndev);
struct prueth *prueth = emac->prueth;
struct prueth_tx_chn *tx_chn;
tx_chn = &emac->tx_chns[0];
if (coal->rx_coalesce_usecs &&
coal->rx_coalesce_usecs < ICSSG_MIN_COALESCE_USECS) {
dev_info(prueth->dev, "defaulting to min value of %dus for rx-usecs\n",
ICSSG_MIN_COALESCE_USECS);
coal->rx_coalesce_usecs = ICSSG_MIN_COALESCE_USECS;
}
if (coal->tx_coalesce_usecs &&
coal->tx_coalesce_usecs < ICSSG_MIN_COALESCE_USECS) {
dev_info(prueth->dev, "defaulting to min value of %dus for tx-usecs\n",
ICSSG_MIN_COALESCE_USECS);
coal->tx_coalesce_usecs = ICSSG_MIN_COALESCE_USECS;
}
emac->rx_pace_timeout_ns = coal->rx_coalesce_usecs * 1000;
tx_chn->tx_pace_timeout_ns = coal->tx_coalesce_usecs * 1000;
return 0;
}
static int emac_set_per_queue_coalesce(struct net_device *ndev, u32 queue,
struct ethtool_coalesce *coal)
{
struct prueth_emac *emac = netdev_priv(ndev);
struct prueth *prueth = emac->prueth;
struct prueth_tx_chn *tx_chn;
if (queue >= PRUETH_MAX_TX_QUEUES)
return -EINVAL;
tx_chn = &emac->tx_chns[queue];
if (coal->tx_coalesce_usecs &&
coal->tx_coalesce_usecs < ICSSG_MIN_COALESCE_USECS) {
dev_info(prueth->dev, "defaulting to min value of %dus for tx-usecs for tx-%u\n",
ICSSG_MIN_COALESCE_USECS, queue);
coal->tx_coalesce_usecs = ICSSG_MIN_COALESCE_USECS;
}
tx_chn->tx_pace_timeout_ns = coal->tx_coalesce_usecs * 1000;
return 0;
}
const struct ethtool_ops icssg_ethtool_ops = {
.get_drvinfo = emac_get_drvinfo,
.get_msglevel = emac_get_msglevel,
.set_msglevel = emac_set_msglevel,
.get_sset_count = emac_get_sset_count,
.get_ethtool_stats = emac_get_ethtool_stats,
.get_strings = emac_get_strings,
.get_ts_info = emac_get_ts_info,
.supported_coalesce_params = ETHTOOL_COALESCE_RX_USECS |
ETHTOOL_COALESCE_TX_USECS,
.get_coalesce = emac_get_coalesce,
.set_coalesce = emac_set_coalesce,
.get_per_queue_coalesce = emac_get_per_queue_coalesce,
.set_per_queue_coalesce = emac_set_per_queue_coalesce,
.get_channels = emac_get_channels,
.set_channels = emac_set_channels,
.get_link_ksettings = emac_get_link_ksettings,
.set_link_ksettings = emac_set_link_ksettings,
.get_link = ethtool_op_get_link,
.get_eee = emac_get_eee,
.set_eee = emac_set_eee,
.nway_reset = emac_nway_reset,
.get_rmon_stats = emac_get_rmon_stats,
};
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