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// SPDX-License-Identifier: GPL-2.0-or-later
/* Applied Micro X-Gene SoC Ethernet Driver
*
* Copyright (c) 2014, Applied Micro Circuits Corporation
* Authors: Iyappan Subramanian <isubramanian@apm.com>
*/
#include <linux/ethtool.h>
#include "xgene_enet_main.h"
struct xgene_gstrings_stats {
char name[ETH_GSTRING_LEN];
int offset;
u32 addr;
u32 mask;
};
#define XGENE_STAT(m) { #m, offsetof(struct rtnl_link_stats64, m) }
#define XGENE_EXTD_STAT(s, a, m) \
{ \
.name = #s, \
.addr = a ## _ADDR, \
.mask = m \
}
static const struct xgene_gstrings_stats gstrings_stats[] = {
XGENE_STAT(rx_packets),
XGENE_STAT(tx_packets),
XGENE_STAT(rx_bytes),
XGENE_STAT(tx_bytes),
XGENE_STAT(rx_errors),
XGENE_STAT(tx_errors),
XGENE_STAT(rx_length_errors),
XGENE_STAT(rx_crc_errors),
XGENE_STAT(rx_frame_errors),
XGENE_STAT(rx_fifo_errors)
};
static const struct xgene_gstrings_stats gstrings_extd_stats[] = {
XGENE_EXTD_STAT(tx_rx_64b_frame_cntr, TR64, 31),
XGENE_EXTD_STAT(tx_rx_127b_frame_cntr, TR127, 31),
XGENE_EXTD_STAT(tx_rx_255b_frame_cntr, TR255, 31),
XGENE_EXTD_STAT(tx_rx_511b_frame_cntr, TR511, 31),
XGENE_EXTD_STAT(tx_rx_1023b_frame_cntr, TR1K, 31),
XGENE_EXTD_STAT(tx_rx_1518b_frame_cntr, TRMAX, 31),
XGENE_EXTD_STAT(tx_rx_1522b_frame_cntr, TRMGV, 31),
XGENE_EXTD_STAT(rx_fcs_error_cntr, RFCS, 16),
XGENE_EXTD_STAT(rx_multicast_pkt_cntr, RMCA, 31),
XGENE_EXTD_STAT(rx_broadcast_pkt_cntr, RBCA, 31),
XGENE_EXTD_STAT(rx_ctrl_frame_pkt_cntr, RXCF, 16),
XGENE_EXTD_STAT(rx_pause_frame_pkt_cntr, RXPF, 16),
XGENE_EXTD_STAT(rx_unk_opcode_cntr, RXUO, 16),
XGENE_EXTD_STAT(rx_align_err_cntr, RALN, 16),
XGENE_EXTD_STAT(rx_frame_len_err_cntr, RFLR, 16),
XGENE_EXTD_STAT(rx_frame_len_err_recov_cntr, DUMP, 0),
XGENE_EXTD_STAT(rx_code_err_cntr, RCDE, 16),
XGENE_EXTD_STAT(rx_carrier_sense_err_cntr, RCSE, 16),
XGENE_EXTD_STAT(rx_undersize_pkt_cntr, RUND, 16),
XGENE_EXTD_STAT(rx_oversize_pkt_cntr, ROVR, 16),
XGENE_EXTD_STAT(rx_fragments_cntr, RFRG, 16),
XGENE_EXTD_STAT(rx_jabber_cntr, RJBR, 16),
XGENE_EXTD_STAT(rx_jabber_recov_cntr, DUMP, 0),
XGENE_EXTD_STAT(rx_dropped_pkt_cntr, RDRP, 16),
XGENE_EXTD_STAT(rx_overrun_cntr, DUMP, 0),
XGENE_EXTD_STAT(tx_multicast_pkt_cntr, TMCA, 31),
XGENE_EXTD_STAT(tx_broadcast_pkt_cntr, TBCA, 31),
XGENE_EXTD_STAT(tx_pause_ctrl_frame_cntr, TXPF, 16),
XGENE_EXTD_STAT(tx_defer_pkt_cntr, TDFR, 31),
XGENE_EXTD_STAT(tx_excv_defer_pkt_cntr, TEDF, 31),
XGENE_EXTD_STAT(tx_single_col_pkt_cntr, TSCL, 31),
XGENE_EXTD_STAT(tx_multi_col_pkt_cntr, TMCL, 31),
XGENE_EXTD_STAT(tx_late_col_pkt_cntr, TLCL, 31),
XGENE_EXTD_STAT(tx_excv_col_pkt_cntr, TXCL, 31),
XGENE_EXTD_STAT(tx_total_col_cntr, TNCL, 31),
XGENE_EXTD_STAT(tx_pause_frames_hnrd_cntr, TPFH, 16),
XGENE_EXTD_STAT(tx_drop_frame_cntr, TDRP, 16),
XGENE_EXTD_STAT(tx_jabber_frame_cntr, TJBR, 12),
XGENE_EXTD_STAT(tx_fcs_error_cntr, TFCS, 12),
XGENE_EXTD_STAT(tx_ctrl_frame_cntr, TXCF, 12),
XGENE_EXTD_STAT(tx_oversize_frame_cntr, TOVR, 12),
XGENE_EXTD_STAT(tx_undersize_frame_cntr, TUND, 12),
XGENE_EXTD_STAT(tx_fragments_cntr, TFRG, 12),
XGENE_EXTD_STAT(tx_underrun_cntr, DUMP, 0)
};
#define XGENE_STATS_LEN ARRAY_SIZE(gstrings_stats)
#define XGENE_EXTD_STATS_LEN ARRAY_SIZE(gstrings_extd_stats)
#define RFCS_IDX 7
#define RALN_IDX 13
#define RFLR_IDX 14
#define FALSE_RFLR_IDX 15
#define RUND_IDX 18
#define FALSE_RJBR_IDX 22
#define RX_OVERRUN_IDX 24
#define TFCS_IDX 38
#define TFRG_IDX 42
#define TX_UNDERRUN_IDX 43
static void xgene_get_drvinfo(struct net_device *ndev,
struct ethtool_drvinfo *info)
{
struct xgene_enet_pdata *pdata = netdev_priv(ndev);
struct platform_device *pdev = pdata->pdev;
strcpy(info->driver, "xgene_enet");
snprintf(info->fw_version, ETHTOOL_FWVERS_LEN, "N/A");
sprintf(info->bus_info, "%s", pdev->name);
}
static int xgene_get_link_ksettings(struct net_device *ndev,
struct ethtool_link_ksettings *cmd)
{
struct xgene_enet_pdata *pdata = netdev_priv(ndev);
struct phy_device *phydev = ndev->phydev;
u32 supported;
if (phy_interface_mode_is_rgmii(pdata->phy_mode)) {
if (phydev == NULL)
return -ENODEV;
phy_ethtool_ksettings_get(phydev, cmd);
return 0;
} else if (pdata->phy_mode == PHY_INTERFACE_MODE_SGMII) {
if (pdata->mdio_driver) {
if (!phydev)
return -ENODEV;
phy_ethtool_ksettings_get(phydev, cmd);
return 0;
}
supported = SUPPORTED_1000baseT_Full | SUPPORTED_Autoneg |
SUPPORTED_MII;
ethtool_convert_legacy_u32_to_link_mode(
cmd->link_modes.supported,
supported);
ethtool_convert_legacy_u32_to_link_mode(
cmd->link_modes.advertising,
supported);
cmd->base.speed = SPEED_1000;
cmd->base.duplex = DUPLEX_FULL;
cmd->base.port = PORT_MII;
cmd->base.autoneg = AUTONEG_ENABLE;
} else {
supported = SUPPORTED_10000baseT_Full | SUPPORTED_FIBRE;
ethtool_convert_legacy_u32_to_link_mode(
cmd->link_modes.supported,
supported);
ethtool_convert_legacy_u32_to_link_mode(
cmd->link_modes.advertising,
supported);
cmd->base.speed = SPEED_10000;
cmd->base.duplex = DUPLEX_FULL;
cmd->base.port = PORT_FIBRE;
cmd->base.autoneg = AUTONEG_DISABLE;
}
return 0;
}
static int xgene_set_link_ksettings(struct net_device *ndev,
const struct ethtool_link_ksettings *cmd)
{
struct xgene_enet_pdata *pdata = netdev_priv(ndev);
struct phy_device *phydev = ndev->phydev;
if (phy_interface_mode_is_rgmii(pdata->phy_mode)) {
if (!phydev)
return -ENODEV;
return phy_ethtool_ksettings_set(phydev, cmd);
}
if (pdata->phy_mode == PHY_INTERFACE_MODE_SGMII) {
if (pdata->mdio_driver) {
if (!phydev)
return -ENODEV;
return phy_ethtool_ksettings_set(phydev, cmd);
}
}
return -EINVAL;
}
static void xgene_get_strings(struct net_device *ndev, u32 stringset, u8 *data)
{
int i;
u8 *p = data;
if (stringset != ETH_SS_STATS)
return;
for (i = 0; i < XGENE_STATS_LEN; i++) {
memcpy(p, gstrings_stats[i].name, ETH_GSTRING_LEN);
p += ETH_GSTRING_LEN;
}
for (i = 0; i < XGENE_EXTD_STATS_LEN; i++) {
memcpy(p, gstrings_extd_stats[i].name, ETH_GSTRING_LEN);
p += ETH_GSTRING_LEN;
}
}
static int xgene_get_sset_count(struct net_device *ndev, int sset)
{
if (sset != ETH_SS_STATS)
return -EINVAL;
return XGENE_STATS_LEN + XGENE_EXTD_STATS_LEN;
}
static void xgene_get_extd_stats(struct xgene_enet_pdata *pdata)
{
u32 rx_drop, tx_drop;
u32 mask, tmp;
int i;
for (i = 0; i < XGENE_EXTD_STATS_LEN; i++) {
tmp = xgene_enet_rd_stat(pdata, gstrings_extd_stats[i].addr);
if (gstrings_extd_stats[i].mask) {
mask = GENMASK(gstrings_extd_stats[i].mask - 1, 0);
pdata->extd_stats[i] += (tmp & mask);
}
}
if (pdata->phy_mode == PHY_INTERFACE_MODE_XGMII) {
/* Errata 10GE_10 - SW should intepret RALN as 0 */
pdata->extd_stats[RALN_IDX] = 0;
} else {
/* Errata ENET_15 - Fixes RFCS, RFLR, TFCS counter */
pdata->extd_stats[RFCS_IDX] -= pdata->extd_stats[RALN_IDX];
pdata->extd_stats[RFLR_IDX] -= pdata->extd_stats[RUND_IDX];
pdata->extd_stats[TFCS_IDX] -= pdata->extd_stats[TFRG_IDX];
}
pdata->mac_ops->get_drop_cnt(pdata, &rx_drop, &tx_drop);
pdata->extd_stats[RX_OVERRUN_IDX] += rx_drop;
pdata->extd_stats[TX_UNDERRUN_IDX] += tx_drop;
/* Errata 10GE_8 - Update Frame recovered from Errata 10GE_8/ENET_11 */
pdata->extd_stats[FALSE_RFLR_IDX] = pdata->false_rflr;
/* Errata ENET_15 - Jabber Frame recov'ed from Errata 10GE_10/ENET_15 */
pdata->extd_stats[FALSE_RJBR_IDX] = pdata->vlan_rjbr;
}
int xgene_extd_stats_init(struct xgene_enet_pdata *pdata)
{
pdata->extd_stats = devm_kmalloc_array(&pdata->pdev->dev,
XGENE_EXTD_STATS_LEN, sizeof(u64), GFP_KERNEL);
if (!pdata->extd_stats)
return -ENOMEM;
xgene_get_extd_stats(pdata);
memset(pdata->extd_stats, 0, XGENE_EXTD_STATS_LEN * sizeof(u64));
return 0;
}
static void xgene_get_ethtool_stats(struct net_device *ndev,
struct ethtool_stats *dummy,
u64 *data)
{
struct xgene_enet_pdata *pdata = netdev_priv(ndev);
struct rtnl_link_stats64 stats;
int i;
dev_get_stats(ndev, &stats);
for (i = 0; i < XGENE_STATS_LEN; i++)
data[i] = *(u64 *)((char *)&stats + gstrings_stats[i].offset);
xgene_get_extd_stats(pdata);
for (i = 0; i < XGENE_EXTD_STATS_LEN; i++)
data[i + XGENE_STATS_LEN] = pdata->extd_stats[i];
}
static void xgene_get_pauseparam(struct net_device *ndev,
struct ethtool_pauseparam *pp)
{
struct xgene_enet_pdata *pdata = netdev_priv(ndev);
pp->autoneg = pdata->pause_autoneg;
pp->tx_pause = pdata->tx_pause;
pp->rx_pause = pdata->rx_pause;
}
static int xgene_set_pauseparam(struct net_device *ndev,
struct ethtool_pauseparam *pp)
{
struct xgene_enet_pdata *pdata = netdev_priv(ndev);
struct phy_device *phydev = ndev->phydev;
if (phy_interface_mode_is_rgmii(pdata->phy_mode) ||
pdata->phy_mode == PHY_INTERFACE_MODE_SGMII) {
if (!phydev)
return -EINVAL;
if (!phy_validate_pause(phydev, pp))
return -EINVAL;
pdata->pause_autoneg = pp->autoneg;
pdata->tx_pause = pp->tx_pause;
pdata->rx_pause = pp->rx_pause;
phy_set_asym_pause(phydev, pp->rx_pause, pp->tx_pause);
if (!pp->autoneg) {
pdata->mac_ops->flowctl_tx(pdata, pdata->tx_pause);
pdata->mac_ops->flowctl_rx(pdata, pdata->rx_pause);
}
} else {
if (pp->autoneg)
return -EINVAL;
pdata->tx_pause = pp->tx_pause;
pdata->rx_pause = pp->rx_pause;
pdata->mac_ops->flowctl_tx(pdata, pdata->tx_pause);
pdata->mac_ops->flowctl_rx(pdata, pdata->rx_pause);
}
return 0;
}
static const struct ethtool_ops xgene_ethtool_ops = {
.get_drvinfo = xgene_get_drvinfo,
.get_link = ethtool_op_get_link,
.get_strings = xgene_get_strings,
.get_sset_count = xgene_get_sset_count,
.get_ethtool_stats = xgene_get_ethtool_stats,
.get_link_ksettings = xgene_get_link_ksettings,
.set_link_ksettings = xgene_set_link_ksettings,
.get_pauseparam = xgene_get_pauseparam,
.set_pauseparam = xgene_set_pauseparam
};
void xgene_enet_set_ethtool_ops(struct net_device *ndev)
{
ndev->ethtool_ops = &xgene_ethtool_ops;
}
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