drivers/net/ethernet/ibm/ehea/ehea_ethtool.c

   1 /*
   2  *  linux/drivers/net/ethernet/ibm/ehea/ehea_ethtool.c
   3  *
   4  *  eHEA ethernet device driver for IBM eServer System p
   5  *
   6  *  (C) Copyright IBM Corp. 2006
   7  *
   8  *  Authors:
   9  *       Christoph Raisch <raisch@de.ibm.com>
  10  *       Jan-Bernd Themann <themann@de.ibm.com>
  11  *       Thomas Klein <tklein@de.ibm.com>
  12  *
  13  *
  14  * This program is free software; you can redistribute it and/or modify
  15  * it under the terms of the GNU General Public License as published by
  16  * the Free Software Foundation; either version 2, or (at your option)
  17  * any later version.
  18  *
  19  * This program is distributed in the hope that it will be useful,
  20  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22  * GNU General Public License for more details.
  23  *
  24  * You should have received a copy of the GNU General Public License
  25  * along with this program; if not, write to the Free Software
  26  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  27  */
  28
  29 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  30
  31 #include "ehea.h"
  32 #include "ehea_phyp.h"
  33
  34 static int ehea_get_link_ksettings(struct net_device *dev,
  35                                    struct ethtool_link_ksettings *cmd)
  36 {
  37         struct ehea_port *port = netdev_priv(dev);
  38         u32 supported, advertising;
  39         u32 speed;
  40         int ret;
  41
  42         ret = ehea_sense_port_attr(port);
  43
  44         if (ret)
  45                 return ret;
  46
  47         if (netif_carrier_ok(dev)) {
  48                 switch (port->port_speed) {
  49                 case EHEA_SPEED_10M:
  50                         speed = SPEED_10;
  51                         break;
  52                 case EHEA_SPEED_100M:
  53                         speed = SPEED_100;
  54                         break;
  55                 case EHEA_SPEED_1G:
  56                         speed = SPEED_1000;
  57                         break;
  58                 case EHEA_SPEED_10G:
  59                         speed = SPEED_10000;
  60                         break;
  61                 default:
  62                         speed = -1;
  63                         break; /* BUG */
  64                 }
  65                 cmd->base.duplex = port->full_duplex == 1 ?
  66                                                      DUPLEX_FULL : DUPLEX_HALF;
  67         } else {
  68                 speed = SPEED_UNKNOWN;
  69                 cmd->base.duplex = DUPLEX_UNKNOWN;
  70         }
  71         cmd->base.speed = speed;
  72
  73         if (cmd->base.speed == SPEED_10000) {
  74                 supported = (SUPPORTED_10000baseT_Full | SUPPORTED_FIBRE);
  75                 advertising = (ADVERTISED_10000baseT_Full | ADVERTISED_FIBRE);
  76                 cmd->base.port = PORT_FIBRE;
  77         } else {
  78                 supported = (SUPPORTED_1000baseT_Full | SUPPORTED_100baseT_Full
  79                                | SUPPORTED_100baseT_Half | SUPPORTED_10baseT_Full
  80                                | SUPPORTED_10baseT_Half | SUPPORTED_Autoneg
  81                                | SUPPORTED_TP);
  82                 advertising = (ADVERTISED_1000baseT_Full | ADVERTISED_Autoneg
  83                                  | ADVERTISED_TP);
  84                 cmd->base.port = PORT_TP;
  85         }
  86
  87         cmd->base.autoneg = port->autoneg == 1 ?
  88                 AUTONEG_ENABLE : AUTONEG_DISABLE;
  89
  90         ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported,
  91                                                 supported);
  92         ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.advertising,
  93                                                 advertising);
  94
  95         return 0;
  96 }
  97
  98 static int ehea_set_link_ksettings(struct net_device *dev,
  99                                    const struct ethtool_link_ksettings *cmd)
 100 {
 101         struct ehea_port *port = netdev_priv(dev);
 102         int ret = 0;
 103         u32 sp;
 104
 105         if (cmd->base.autoneg == AUTONEG_ENABLE) {
 106                 sp = EHEA_SPEED_AUTONEG;
 107                 goto doit;
 108         }
 109
 110         switch (cmd->base.speed) {
 111         case SPEED_10:
 112                 if (cmd->base.duplex == DUPLEX_FULL)
 113                         sp = H_SPEED_10M_F;
 114                 else
 115                         sp = H_SPEED_10M_H;
 116                 break;
 117
 118         case SPEED_100:
 119                 if (cmd->base.duplex == DUPLEX_FULL)
 120                         sp = H_SPEED_100M_F;
 121                 else
 122                         sp = H_SPEED_100M_H;
 123                 break;
 124
 125         case SPEED_1000:
 126                 if (cmd->base.duplex == DUPLEX_FULL)
 127                         sp = H_SPEED_1G_F;
 128                 else
 129                         ret = -EINVAL;
 130                 break;
 131
 132         case SPEED_10000:
 133                 if (cmd->base.duplex == DUPLEX_FULL)
 134                         sp = H_SPEED_10G_F;
 135                 else
 136                         ret = -EINVAL;
 137                 break;
 138
 139         default:
 140                         ret = -EINVAL;
 141                 break;
 142         }
 143
 144         if (ret)
 145                 goto out;
 146 doit:
 147         ret = ehea_set_portspeed(port, sp);
 148
 149         if (!ret)
 150                 netdev_info(dev,
 151                             "Port speed successfully set: %dMbps %s Duplex\n",
 152                             port->port_speed,
 153                             port->full_duplex == 1 ? "Full" : "Half");
 154 out:
 155         return ret;
 156 }
 157
 158 static int ehea_nway_reset(struct net_device *dev)
 159 {
 160         struct ehea_port *port = netdev_priv(dev);
 161         int ret;
 162
 163         ret = ehea_set_portspeed(port, EHEA_SPEED_AUTONEG);
 164
 165         if (!ret)
 166                 netdev_info(port->netdev,
 167                             "Port speed successfully set: %dMbps %s Duplex\n",
 168                             port->port_speed,
 169                             port->full_duplex == 1 ? "Full" : "Half");
 170         return ret;
 171 }
 172
 173 static void ehea_get_drvinfo(struct net_device *dev,
 174                                struct ethtool_drvinfo *info)
 175 {
 176         strlcpy(info->driver, DRV_NAME, sizeof(info->driver));
 177         strlcpy(info->version, DRV_VERSION, sizeof(info->version));
 178 }
 179
 180 static u32 ehea_get_msglevel(struct net_device *dev)
 181 {
 182         struct ehea_port *port = netdev_priv(dev);
 183         return port->msg_enable;
 184 }
 185
 186 static void ehea_set_msglevel(struct net_device *dev, u32 value)
 187 {
 188         struct ehea_port *port = netdev_priv(dev);
 189         port->msg_enable = value;
 190 }
 191
 192 static const char ehea_ethtool_stats_keys[][ETH_GSTRING_LEN] = {
 193         {"sig_comp_iv"},
 194         {"swqe_refill_th"},
 195         {"port resets"},
 196         {"Receive errors"},
 197         {"TCP cksum errors"},
 198         {"IP cksum errors"},
 199         {"Frame cksum errors"},
 200         {"num SQ stopped"},
 201         {"PR0 free_swqes"},
 202         {"PR1 free_swqes"},
 203         {"PR2 free_swqes"},
 204         {"PR3 free_swqes"},
 205         {"PR4 free_swqes"},
 206         {"PR5 free_swqes"},
 207         {"PR6 free_swqes"},
 208         {"PR7 free_swqes"},
 209         {"PR8 free_swqes"},
 210         {"PR9 free_swqes"},
 211         {"PR10 free_swqes"},
 212         {"PR11 free_swqes"},
 213         {"PR12 free_swqes"},
 214         {"PR13 free_swqes"},
 215         {"PR14 free_swqes"},
 216         {"PR15 free_swqes"},
 217 };
 218
 219 static void ehea_get_strings(struct net_device *dev, u32 stringset, u8 *data)
 220 {
 221         if (stringset == ETH_SS_STATS) {
 222                 memcpy(data, &ehea_ethtool_stats_keys,
 223                        sizeof(ehea_ethtool_stats_keys));
 224         }
 225 }
 226
 227 static int ehea_get_sset_count(struct net_device *dev, int sset)
 228 {
 229         switch (sset) {
 230         case ETH_SS_STATS:
 231                 return ARRAY_SIZE(ehea_ethtool_stats_keys);
 232         default:
 233                 return -EOPNOTSUPP;
 234         }
 235 }
 236
 237 static void ehea_get_ethtool_stats(struct net_device *dev,
 238                                      struct ethtool_stats *stats, u64 *data)
 239 {
 240         int i, k, tmp;
 241         struct ehea_port *port = netdev_priv(dev);
 242
 243         for (i = 0; i < ehea_get_sset_count(dev, ETH_SS_STATS); i++)
 244                 data[i] = 0;
 245         i = 0;
 246
 247         data[i++] = port->sig_comp_iv;
 248         data[i++] = port->port_res[0].swqe_refill_th;
 249         data[i++] = port->resets;
 250
 251         for (k = 0, tmp = 0; k < EHEA_MAX_PORT_RES; k++)
 252                 tmp += port->port_res[k].p_stats.poll_receive_errors;
 253         data[i++] = tmp;
 254
 255         for (k = 0, tmp = 0; k < EHEA_MAX_PORT_RES; k++)
 256                 tmp += port->port_res[k].p_stats.err_tcp_cksum;
 257         data[i++] = tmp;
 258
 259         for (k = 0, tmp = 0; k < EHEA_MAX_PORT_RES; k++)
 260                 tmp += port->port_res[k].p_stats.err_ip_cksum;
 261         data[i++] = tmp;
 262
 263         for (k = 0, tmp = 0; k < EHEA_MAX_PORT_RES; k++)
 264                 tmp += port->port_res[k].p_stats.err_frame_crc;
 265         data[i++] = tmp;
 266
 267         for (k = 0, tmp = 0; k < EHEA_MAX_PORT_RES; k++)
 268                 tmp += port->port_res[k].p_stats.queue_stopped;
 269         data[i++] = tmp;
 270
 271         for (k = 0; k < 16; k++)
 272                 data[i++] = atomic_read(&port->port_res[k].swqe_avail);
 273 }
 274
 275 static const struct ethtool_ops ehea_ethtool_ops = {
 276         .get_drvinfo = ehea_get_drvinfo,
 277         .get_msglevel = ehea_get_msglevel,
 278         .set_msglevel = ehea_set_msglevel,
 279         .get_link = ethtool_op_get_link,
 280         .get_strings = ehea_get_strings,
 281         .get_sset_count = ehea_get_sset_count,
 282         .get_ethtool_stats = ehea_get_ethtool_stats,
 283         .nway_reset = ehea_nway_reset,          /* Restart autonegotiation */
 284         .get_link_ksettings = ehea_get_link_ksettings,
 285         .set_link_ksettings = ehea_set_link_ksettings,
 286 };
 287
 288 void ehea_set_ethtool_ops(struct net_device *netdev)
 289 {
 290         netdev->ethtool_ops = &ehea_ethtool_ops;
 291 }