linux/drivers/net/ethernet/ibm/ehea/ehea_ethtool.c
<<
>>
Prefs
   1// SPDX-License-Identifier: GPL-2.0-or-later
   2/*
   3 *  linux/drivers/net/ethernet/ibm/ehea/ehea_ethtool.c
   4 *
   5 *  eHEA ethernet device driver for IBM eServer System p
   6 *
   7 *  (C) Copyright IBM Corp. 2006
   8 *
   9 *  Authors:
  10 *       Christoph Raisch <raisch@de.ibm.com>
  11 *       Jan-Bernd Themann <themann@de.ibm.com>
  12 *       Thomas Klein <tklein@de.ibm.com>
  13 */
  14
  15#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  16
  17#include "ehea.h"
  18#include "ehea_phyp.h"
  19
  20static int ehea_get_link_ksettings(struct net_device *dev,
  21                                   struct ethtool_link_ksettings *cmd)
  22{
  23        struct ehea_port *port = netdev_priv(dev);
  24        u32 supported, advertising;
  25        u32 speed;
  26        int ret;
  27
  28        ret = ehea_sense_port_attr(port);
  29
  30        if (ret)
  31                return ret;
  32
  33        if (netif_carrier_ok(dev)) {
  34                switch (port->port_speed) {
  35                case EHEA_SPEED_10M:
  36                        speed = SPEED_10;
  37                        break;
  38                case EHEA_SPEED_100M:
  39                        speed = SPEED_100;
  40                        break;
  41                case EHEA_SPEED_1G:
  42                        speed = SPEED_1000;
  43                        break;
  44                case EHEA_SPEED_10G:
  45                        speed = SPEED_10000;
  46                        break;
  47                default:
  48                        speed = -1;
  49                        break; /* BUG */
  50                }
  51                cmd->base.duplex = port->full_duplex == 1 ?
  52                                                     DUPLEX_FULL : DUPLEX_HALF;
  53        } else {
  54                speed = SPEED_UNKNOWN;
  55                cmd->base.duplex = DUPLEX_UNKNOWN;
  56        }
  57        cmd->base.speed = speed;
  58
  59        if (cmd->base.speed == SPEED_10000) {
  60                supported = (SUPPORTED_10000baseT_Full | SUPPORTED_FIBRE);
  61                advertising = (ADVERTISED_10000baseT_Full | ADVERTISED_FIBRE);
  62                cmd->base.port = PORT_FIBRE;
  63        } else {
  64                supported = (SUPPORTED_1000baseT_Full | SUPPORTED_100baseT_Full
  65                               | SUPPORTED_100baseT_Half | SUPPORTED_10baseT_Full
  66                               | SUPPORTED_10baseT_Half | SUPPORTED_Autoneg
  67                               | SUPPORTED_TP);
  68                advertising = (ADVERTISED_1000baseT_Full | ADVERTISED_Autoneg
  69                                 | ADVERTISED_TP);
  70                cmd->base.port = PORT_TP;
  71        }
  72
  73        cmd->base.autoneg = port->autoneg == 1 ?
  74                AUTONEG_ENABLE : AUTONEG_DISABLE;
  75
  76        ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported,
  77                                                supported);
  78        ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.advertising,
  79                                                advertising);
  80
  81        return 0;
  82}
  83
  84static int ehea_set_link_ksettings(struct net_device *dev,
  85                                   const struct ethtool_link_ksettings *cmd)
  86{
  87        struct ehea_port *port = netdev_priv(dev);
  88        int ret = 0;
  89        u32 sp;
  90
  91        if (cmd->base.autoneg == AUTONEG_ENABLE) {
  92                sp = EHEA_SPEED_AUTONEG;
  93                goto doit;
  94        }
  95
  96        switch (cmd->base.speed) {
  97        case SPEED_10:
  98                if (cmd->base.duplex == DUPLEX_FULL)
  99                        sp = H_SPEED_10M_F;
 100                else
 101                        sp = H_SPEED_10M_H;
 102                break;
 103
 104        case SPEED_100:
 105                if (cmd->base.duplex == DUPLEX_FULL)
 106                        sp = H_SPEED_100M_F;
 107                else
 108                        sp = H_SPEED_100M_H;
 109                break;
 110
 111        case SPEED_1000:
 112                if (cmd->base.duplex == DUPLEX_FULL)
 113                        sp = H_SPEED_1G_F;
 114                else
 115                        ret = -EINVAL;
 116                break;
 117
 118        case SPEED_10000:
 119                if (cmd->base.duplex == DUPLEX_FULL)
 120                        sp = H_SPEED_10G_F;
 121                else
 122                        ret = -EINVAL;
 123                break;
 124
 125        default:
 126                        ret = -EINVAL;
 127                break;
 128        }
 129
 130        if (ret)
 131                goto out;
 132doit:
 133        ret = ehea_set_portspeed(port, sp);
 134
 135        if (!ret)
 136                netdev_info(dev,
 137                            "Port speed successfully set: %dMbps %s Duplex\n",
 138                            port->port_speed,
 139                            port->full_duplex == 1 ? "Full" : "Half");
 140out:
 141        return ret;
 142}
 143
 144static int ehea_nway_reset(struct net_device *dev)
 145{
 146        struct ehea_port *port = netdev_priv(dev);
 147        int ret;
 148
 149        ret = ehea_set_portspeed(port, EHEA_SPEED_AUTONEG);
 150
 151        if (!ret)
 152                netdev_info(port->netdev,
 153                            "Port speed successfully set: %dMbps %s Duplex\n",
 154                            port->port_speed,
 155                            port->full_duplex == 1 ? "Full" : "Half");
 156        return ret;
 157}
 158
 159static void ehea_get_drvinfo(struct net_device *dev,
 160                               struct ethtool_drvinfo *info)
 161{
 162        strlcpy(info->driver, DRV_NAME, sizeof(info->driver));
 163        strlcpy(info->version, DRV_VERSION, sizeof(info->version));
 164}
 165
 166static u32 ehea_get_msglevel(struct net_device *dev)
 167{
 168        struct ehea_port *port = netdev_priv(dev);
 169        return port->msg_enable;
 170}
 171
 172static void ehea_set_msglevel(struct net_device *dev, u32 value)
 173{
 174        struct ehea_port *port = netdev_priv(dev);
 175        port->msg_enable = value;
 176}
 177
 178static const char ehea_ethtool_stats_keys[][ETH_GSTRING_LEN] = {
 179        {"sig_comp_iv"},
 180        {"swqe_refill_th"},
 181        {"port resets"},
 182        {"Receive errors"},
 183        {"TCP cksum errors"},
 184        {"IP cksum errors"},
 185        {"Frame cksum errors"},
 186        {"num SQ stopped"},
 187        {"PR0 free_swqes"},
 188        {"PR1 free_swqes"},
 189        {"PR2 free_swqes"},
 190        {"PR3 free_swqes"},
 191        {"PR4 free_swqes"},
 192        {"PR5 free_swqes"},
 193        {"PR6 free_swqes"},
 194        {"PR7 free_swqes"},
 195        {"PR8 free_swqes"},
 196        {"PR9 free_swqes"},
 197        {"PR10 free_swqes"},
 198        {"PR11 free_swqes"},
 199        {"PR12 free_swqes"},
 200        {"PR13 free_swqes"},
 201        {"PR14 free_swqes"},
 202        {"PR15 free_swqes"},
 203};
 204
 205static void ehea_get_strings(struct net_device *dev, u32 stringset, u8 *data)
 206{
 207        if (stringset == ETH_SS_STATS) {
 208                memcpy(data, &ehea_ethtool_stats_keys,
 209                       sizeof(ehea_ethtool_stats_keys));
 210        }
 211}
 212
 213static int ehea_get_sset_count(struct net_device *dev, int sset)
 214{
 215        switch (sset) {
 216        case ETH_SS_STATS:
 217                return ARRAY_SIZE(ehea_ethtool_stats_keys);
 218        default:
 219                return -EOPNOTSUPP;
 220        }
 221}
 222
 223static void ehea_get_ethtool_stats(struct net_device *dev,
 224                                     struct ethtool_stats *stats, u64 *data)
 225{
 226        int i, k, tmp;
 227        struct ehea_port *port = netdev_priv(dev);
 228
 229        for (i = 0; i < ehea_get_sset_count(dev, ETH_SS_STATS); i++)
 230                data[i] = 0;
 231        i = 0;
 232
 233        data[i++] = port->sig_comp_iv;
 234        data[i++] = port->port_res[0].swqe_refill_th;
 235        data[i++] = port->resets;
 236
 237        for (k = 0, tmp = 0; k < EHEA_MAX_PORT_RES; k++)
 238                tmp += port->port_res[k].p_stats.poll_receive_errors;
 239        data[i++] = tmp;
 240
 241        for (k = 0, tmp = 0; k < EHEA_MAX_PORT_RES; k++)
 242                tmp += port->port_res[k].p_stats.err_tcp_cksum;
 243        data[i++] = tmp;
 244
 245        for (k = 0, tmp = 0; k < EHEA_MAX_PORT_RES; k++)
 246                tmp += port->port_res[k].p_stats.err_ip_cksum;
 247        data[i++] = tmp;
 248
 249        for (k = 0, tmp = 0; k < EHEA_MAX_PORT_RES; k++)
 250                tmp += port->port_res[k].p_stats.err_frame_crc;
 251        data[i++] = tmp;
 252
 253        for (k = 0, tmp = 0; k < EHEA_MAX_PORT_RES; k++)
 254                tmp += port->port_res[k].p_stats.queue_stopped;
 255        data[i++] = tmp;
 256
 257        for (k = 0; k < 16; k++)
 258                data[i++] = atomic_read(&port->port_res[k].swqe_avail);
 259}
 260
 261static const struct ethtool_ops ehea_ethtool_ops = {
 262        .get_drvinfo = ehea_get_drvinfo,
 263        .get_msglevel = ehea_get_msglevel,
 264        .set_msglevel = ehea_set_msglevel,
 265        .get_link = ethtool_op_get_link,
 266        .get_strings = ehea_get_strings,
 267        .get_sset_count = ehea_get_sset_count,
 268        .get_ethtool_stats = ehea_get_ethtool_stats,
 269        .nway_reset = ehea_nway_reset,          /* Restart autonegotiation */
 270        .get_link_ksettings = ehea_get_link_ksettings,
 271        .set_link_ksettings = ehea_set_link_ksettings,
 272};
 273
 274void ehea_set_ethtool_ops(struct net_device *netdev)
 275{
 276        netdev->ethtool_ops = &ehea_ethtool_ops;
 277}
 278