// SPDX-License-Identifier: GPL-2.0-or-later
/*
* linux/drivers/net/ethernet/ibm/ehea/ehea_ethtool.c
*
* eHEA ethernet device driver for IBM eServer System p
*
* (C) Copyright IBM Corp. 2006
*
* Authors:
* Christoph Raisch <raisch@de.ibm.com>
* Jan-Bernd Themann <themann@de.ibm.com>
* Thomas Klein <tklein@de.ibm.com>
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include "ehea.h"
#include "ehea_phyp.h"
static int ehea_get_link_ksettings(struct net_device *dev,
struct ethtool_link_ksettings *cmd)
{
struct ehea_port *port = netdev_priv(dev);
u32 supported, advertising;
u32 speed;
int ret;
ret = ehea_sense_port_attr(port);
if (ret)
return ret;
if (netif_carrier_ok(dev)) {
switch (port->port_speed) {
case EHEA_SPEED_10M:
speed = SPEED_10;
break;
case EHEA_SPEED_100M:
speed = SPEED_100;
break;
case EHEA_SPEED_1G:
speed = SPEED_1000;
break;
case EHEA_SPEED_10G:
speed = SPEED_10000;
break;
default:
speed = -1;
break; /* BUG */
}
cmd->base.duplex = port->full_duplex == 1 ?
DUPLEX_FULL : DUPLEX_HALF;
} else {
speed = SPEED_UNKNOWN;
cmd->base.duplex = DUPLEX_UNKNOWN;
}
cmd->base.speed = speed;
if (cmd->base.speed == SPEED_10000) {
supported = (SUPPORTED_10000baseT_Full | SUPPORTED_FIBRE);
advertising = (ADVERTISED_10000baseT_Full | ADVERTISED_FIBRE);
cmd->base.port = PORT_FIBRE;
} else {
supported = (SUPPORTED_1000baseT_Full | SUPPORTED_100baseT_Full
| SUPPORTED_100baseT_Half | SUPPORTED_10baseT_Full
| SUPPORTED_10baseT_Half | SUPPORTED_Autoneg
| SUPPORTED_TP);
advertising = (ADVERTISED_1000baseT_Full | ADVERTISED_Autoneg
| ADVERTISED_TP);
cmd->base.port = PORT_TP;
}
cmd->base.autoneg = port->autoneg == 1 ?
AUTONEG_ENABLE : AUTONEG_DISABLE;
ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported,
supported);
ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.advertising,
advertising);
return 0;
}
static int ehea_set_link_ksettings(struct net_device *dev,
const struct ethtool_link_ksettings *cmd)
{
struct ehea_port *port = netdev_priv(dev);
int ret = 0;
u32 sp;
if (cmd->base.autoneg == AUTONEG_ENABLE) {
sp = EHEA_SPEED_AUTONEG;
goto doit;
}
switch (cmd->base.speed) {
case SPEED_10:
if (cmd->base.duplex == DUPLEX_FULL)
sp = H_SPEED_10M_F;
else
sp = H_SPEED_10M_H;
break;
case SPEED_100:
if (cmd->base.duplex == DUPLEX_FULL)
sp = H_SPEED_100M_F;
else
sp = H_SPEED_100M_H;
break;
case SPEED_1000:
if (cmd->base.duplex == DUPLEX_FULL)
sp = H_SPEED_1G_F;
else
ret = -EINVAL;
break;
case SPEED_10000:
if (cmd->base.duplex == DUPLEX_FULL)
sp = H_SPEED_10G_F;
else
ret = -EINVAL;
break;
default:
ret = -EINVAL;
break;
}
if (ret)
goto out;
doit:
ret = ehea_set_portspeed(port, sp);
if (!ret)
netdev_info(dev,
"Port speed successfully set: %dMbps %s Duplex\n",
port->port_speed,
port->full_duplex == 1 ? "Full" : "Half");
out:
return ret;
}
static int ehea_nway_reset(struct net_device *dev)
{
struct ehea_port *port = netdev_priv(dev);
int ret;
ret = ehea_set_portspeed(port, EHEA_SPEED_AUTONEG);
if (!ret)
netdev_info(port->netdev,
"Port speed successfully set: %dMbps %s Duplex\n",
port->port_speed,
port->full_duplex == 1 ? "Full" : "Half");
return ret;
}
static void ehea_get_drvinfo(struct net_device *dev,
struct ethtool_drvinfo *info)
{
strscpy(info->driver, DRV_NAME, sizeof(info->driver));
strscpy(info->version, DRV_VERSION, sizeof(info->version));
}
static u32 ehea_get_msglevel(struct net_device *dev)
{
struct ehea_port *port = netdev_priv(dev);
return port->msg_enable;
}
static void ehea_set_msglevel(struct net_device *dev, u32 value)
{
struct ehea_port *port = netdev_priv(dev);
port->msg_enable = value;
}
static const char ehea_ethtool_stats_keys[][ETH_GSTRING_LEN] = {
{"sig_comp_iv"},
{"swqe_refill_th"},
{"port resets"},
{"Receive errors"},
{"TCP cksum errors"},
{"IP cksum errors"},
{"Frame cksum errors"},
{"num SQ stopped"},
{"PR0 free_swqes"},
{"PR1 free_swqes"},
{"PR2 free_swqes"},
{"PR3 free_swqes"},
{"PR4 free_swqes"},
{"PR5 free_swqes"},
{"PR6 free_swqes"},
{"PR7 free_swqes"},
{"PR8 free_swqes"},
{"PR9 free_swqes"},
{"PR10 free_swqes"},
{"PR11 free_swqes"},
{"PR12 free_swqes"},
{"PR13 free_swqes"},
{"PR14 free_swqes"},
{"PR15 free_swqes"},
};
static void ehea_get_strings(struct net_device *dev, u32 stringset, u8 *data)
{
if (stringset == ETH_SS_STATS) {
memcpy(data, &ehea_ethtool_stats_keys,
sizeof(ehea_ethtool_stats_keys));
}
}
static int ehea_get_sset_count(struct net_device *dev, int sset)
{
switch (sset) {
case ETH_SS_STATS:
return ARRAY_SIZE(ehea_ethtool_stats_keys);
default:
return -EOPNOTSUPP;
}
}
static void ehea_get_ethtool_stats(struct net_device *dev,
struct ethtool_stats *stats, u64 *data)
{
int i, k, tmp;
struct ehea_port *port = netdev_priv(dev);
for (i = 0; i < ehea_get_sset_count(dev, ETH_SS_STATS); i++)
data[i] = 0;
i = 0;
data[i++] = port->sig_comp_iv;
data[i++] = port->port_res[0].swqe_refill_th;
data[i++] = port->resets;
for (k = 0, tmp = 0; k < EHEA_MAX_PORT_RES; k++)
tmp += port->port_res[k].p_stats.poll_receive_errors;
data[i++] = tmp;
for (k = 0, tmp = 0; k < EHEA_MAX_PORT_RES; k++)
tmp += port->port_res[k].p_stats.err_tcp_cksum;
data[i++] = tmp;
for (k = 0, tmp = 0; k < EHEA_MAX_PORT_RES; k++)
tmp += port->port_res[k].p_stats.err_ip_cksum;
data[i++] = tmp;
for (k = 0, tmp = 0; k < EHEA_MAX_PORT_RES; k++)
tmp += port->port_res[k].p_stats.err_frame_crc;
data[i++] = tmp;
for (k = 0, tmp = 0; k < EHEA_MAX_PORT_RES; k++)
tmp += port->port_res[k].p_stats.queue_stopped;
data[i++] = tmp;
for (k = 0; k < 16; k++)
data[i++] = atomic_read(&port->port_res[k].swqe_avail);
}
static const struct ethtool_ops ehea_ethtool_ops = {
.get_drvinfo = ehea_get_drvinfo,
.get_msglevel = ehea_get_msglevel,
.set_msglevel = ehea_set_msglevel,
.get_link = ethtool_op_get_link,
.get_strings = ehea_get_strings,
.get_sset_count = ehea_get_sset_count,
.get_ethtool_stats = ehea_get_ethtool_stats,
.nway_reset = ehea_nway_reset, /* Restart autonegotiation */
.get_link_ksettings = ehea_get_link_ksettings,
.set_link_ksettings = ehea_set_link_ksettings,
};
void ehea_set_ethtool_ops(struct net_device *netdev)
{
netdev->ethtool_ops = &ehea_ethtool_ops;
}