drivers/net/ehea/ehea_ethtool.c

   1 /*
   2  *  linux/drivers/net/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 #include "ehea.h"
  30 #include "ehea_phyp.h"
  31
  32 static int ehea_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
  33 {
  34         struct ehea_port *port = netdev_priv(dev);
  35         int ret;
  36
  37         ret = ehea_sense_port_attr(port);
  38
  39         if (ret)
  40                 return ret;
  41
  42         if (netif_carrier_ok(dev)) {
  43                 switch (port->port_speed) {
  44                 case EHEA_SPEED_10M: cmd->speed = SPEED_10; break;
  45                 case EHEA_SPEED_100M: cmd->speed = SPEED_100; break;
  46                 case EHEA_SPEED_1G: cmd->speed = SPEED_1000; break;
  47                 case EHEA_SPEED_10G: cmd->speed = SPEED_10000; break;
  48                 }
  49                 cmd->duplex = port->full_duplex == 1 ?
  50                                                      DUPLEX_FULL : DUPLEX_HALF;
  51         } else {
  52                 cmd->speed = -1;
  53                 cmd->duplex = -1;
  54         }
  55
  56         if (cmd->speed == SPEED_10000) {
  57                 cmd->supported = (SUPPORTED_10000baseT_Full | SUPPORTED_FIBRE);
  58                 cmd->advertising = (ADVERTISED_10000baseT_Full | ADVERTISED_FIBRE);
  59                 cmd->port = PORT_FIBRE;
  60         } else {
  61                 cmd->supported = (SUPPORTED_1000baseT_Full | SUPPORTED_100baseT_Full
  62                                | SUPPORTED_100baseT_Half | SUPPORTED_10baseT_Full
  63                                | SUPPORTED_10baseT_Half | SUPPORTED_Autoneg
  64                                | SUPPORTED_TP);
  65                 cmd->advertising = (ADVERTISED_1000baseT_Full | ADVERTISED_Autoneg
  66                                  | ADVERTISED_TP);
  67                 cmd->port = PORT_TP;
  68         }
  69
  70         cmd->autoneg = port->autoneg == 1 ? AUTONEG_ENABLE : AUTONEG_DISABLE;
  71
  72         return 0;
  73 }
  74
  75 static int ehea_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
  76 {
  77         struct ehea_port *port = netdev_priv(dev);
  78         int ret = 0;
  79         u32 sp;
  80
  81         if (cmd->autoneg == AUTONEG_ENABLE) {
  82                 sp = EHEA_SPEED_AUTONEG;
  83                 goto doit;
  84         }
  85
  86         switch (cmd->speed) {
  87         case SPEED_10:
  88                 if (cmd->duplex == DUPLEX_FULL)
  89                         sp = H_SPEED_10M_F;
  90                 else
  91                         sp = H_SPEED_10M_H;
  92                 break;
  93
  94         case SPEED_100:
  95                 if (cmd->duplex == DUPLEX_FULL)
  96                         sp = H_SPEED_100M_F;
  97                 else
  98                         sp = H_SPEED_100M_H;
  99                 break;
 100
 101         case SPEED_1000:
 102                 if (cmd->duplex == DUPLEX_FULL)
 103                         sp = H_SPEED_1G_F;
 104                 else
 105                         ret = -EINVAL;
 106                 break;
 107
 108         case SPEED_10000:
 109                 if (cmd->duplex == DUPLEX_FULL)
 110                         sp = H_SPEED_10G_F;
 111                 else
 112                         ret = -EINVAL;
 113                 break;
 114
 115         default:
 116                         ret = -EINVAL;
 117                 break;
 118         }
 119
 120         if (ret)
 121                 goto out;
 122 doit:
 123         ret = ehea_set_portspeed(port, sp);
 124
 125         if (!ret)
 126                 ehea_info("%s: Port speed succesfully set: %dMbps "
 127                           "%s Duplex",
 128                           port->netdev->name, port->port_speed,
 129                           port->full_duplex == 1 ? "Full" : "Half");
 130 out:
 131         return ret;
 132 }
 133
 134 static int ehea_nway_reset(struct net_device *dev)
 135 {
 136         struct ehea_port *port = netdev_priv(dev);
 137         int ret;
 138
 139         ret = ehea_set_portspeed(port, EHEA_SPEED_AUTONEG);
 140
 141         if (!ret)
 142                 ehea_info("%s: Port speed succesfully set: %dMbps "
 143                           "%s Duplex",
 144                           port->netdev->name, port->port_speed,
 145                           port->full_duplex == 1 ? "Full" : "Half");
 146         return ret;
 147 }
 148
 149 static void ehea_get_drvinfo(struct net_device *dev,
 150                                struct ethtool_drvinfo *info)
 151 {
 152         strlcpy(info->driver, DRV_NAME, sizeof(info->driver));
 153         strlcpy(info->version, DRV_VERSION, sizeof(info->version));
 154 }
 155
 156 static u32 ehea_get_msglevel(struct net_device *dev)
 157 {
 158         struct ehea_port *port = netdev_priv(dev);
 159         return port->msg_enable;
 160 }
 161
 162 static void ehea_set_msglevel(struct net_device *dev, u32 value)
 163 {
 164         struct ehea_port *port = netdev_priv(dev);
 165         port->msg_enable = value;
 166 }
 167
 168 static u32 ehea_get_rx_csum(struct net_device *dev)
 169 {
 170         return 1;
 171 }
 172
 173 static char ehea_ethtool_stats_keys[][ETH_GSTRING_LEN] = {
 174         {"sig_comp_iv"},
 175         {"swqe_refill_th"},
 176         {"port resets"},
 177         {"Receive errors"},
 178         {"TCP cksum errors"},
 179         {"IP cksum errors"},
 180         {"Frame cksum errors"},
 181         {"num SQ stopped"},
 182         {"SQ stopped"},
 183         {"PR0 free_swqes"},
 184         {"PR1 free_swqes"},
 185         {"PR2 free_swqes"},
 186         {"PR3 free_swqes"},
 187         {"PR4 free_swqes"},
 188         {"PR5 free_swqes"},
 189         {"PR6 free_swqes"},
 190         {"PR7 free_swqes"},
 191         {"LRO aggregated"},
 192         {"LRO flushed"},
 193         {"LRO no_desc"},
 194 };
 195
 196 static void ehea_get_strings(struct net_device *dev, u32 stringset, u8 *data)
 197 {
 198         if (stringset == ETH_SS_STATS) {
 199                 memcpy(data, &ehea_ethtool_stats_keys,
 200                        sizeof(ehea_ethtool_stats_keys));
 201         }
 202 }
 203
 204 static int ehea_get_sset_count(struct net_device *dev, int sset)
 205 {
 206         switch (sset) {
 207         case ETH_SS_STATS:
 208                 return ARRAY_SIZE(ehea_ethtool_stats_keys);
 209         default:
 210                 return -EOPNOTSUPP;
 211         }
 212 }
 213
 214 static void ehea_get_ethtool_stats(struct net_device *dev,
 215                                      struct ethtool_stats *stats, u64 *data)
 216 {
 217         int i, k, tmp;
 218         struct ehea_port *port = netdev_priv(dev);
 219
 220         for (i = 0; i < ehea_get_sset_count(dev, ETH_SS_STATS); i++)
 221                 data[i] = 0;
 222         i = 0;
 223
 224         data[i++] = port->sig_comp_iv;
 225         data[i++] = port->port_res[0].swqe_refill_th;
 226         data[i++] = port->resets;
 227
 228         for (k = 0, tmp = 0; k < EHEA_MAX_PORT_RES; k++)
 229                 tmp += port->port_res[k].p_stats.poll_receive_errors;
 230         data[i++] = tmp;
 231
 232         for (k = 0, tmp = 0; k < EHEA_MAX_PORT_RES; k++)
 233                 tmp += port->port_res[k].p_stats.err_tcp_cksum;
 234         data[i++] = tmp;
 235
 236         for (k = 0, tmp = 0; k < EHEA_MAX_PORT_RES; k++)
 237                 tmp += port->port_res[k].p_stats.err_ip_cksum;
 238         data[i++] = tmp;
 239
 240         for (k = 0, tmp = 0; k < EHEA_MAX_PORT_RES; k++)
 241                 tmp += port->port_res[k].p_stats.err_frame_crc;
 242         data[i++] = tmp;
 243
 244         for (k = 0, tmp = 0; k < EHEA_MAX_PORT_RES; k++)
 245                 tmp += port->port_res[k].p_stats.queue_stopped;
 246         data[i++] = tmp;
 247
 248         for (k = 0, tmp = 0; k < EHEA_MAX_PORT_RES; k++)
 249                 tmp |= port->port_res[k].queue_stopped;
 250         data[i++] = tmp;
 251
 252         for (k = 0; k < 8; k++)
 253                 data[i++] = atomic_read(&port->port_res[k].swqe_avail);
 254
 255         for (k = 0, tmp = 0; k < EHEA_MAX_PORT_RES; k++)
 256                 tmp |= port->port_res[k].lro_mgr.stats.aggregated;
 257         data[i++] = tmp;
 258
 259         for (k = 0, tmp = 0; k < EHEA_MAX_PORT_RES; k++)
 260                 tmp |= port->port_res[k].lro_mgr.stats.flushed;
 261         data[i++] = tmp;
 262
 263         for (k = 0, tmp = 0; k < EHEA_MAX_PORT_RES; k++)
 264                 tmp |= port->port_res[k].lro_mgr.stats.no_desc;
 265         data[i++] = tmp;
 266
 267 }
 268
 269 const struct ethtool_ops ehea_ethtool_ops = {
 270         .get_settings = ehea_get_settings,
 271         .get_drvinfo = ehea_get_drvinfo,
 272         .get_msglevel = ehea_get_msglevel,
 273         .set_msglevel = ehea_set_msglevel,
 274         .get_link = ethtool_op_get_link,
 275         .set_tso = ethtool_op_set_tso,
 276         .get_strings = ehea_get_strings,
 277         .get_sset_count = ehea_get_sset_count,
 278         .get_ethtool_stats = ehea_get_ethtool_stats,
 279         .get_rx_csum = ehea_get_rx_csum,
 280         .set_settings = ehea_set_settings,
 281         .nway_reset = ehea_nway_reset,          /* Restart autonegotiation */
 282 };
 283
 284 void ehea_set_ethtool_ops(struct net_device *netdev)
 285 {
 286         SET_ETHTOOL_OPS(netdev, &ehea_ethtool_ops);
 287 }