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 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  30
  31 #include "ehea.h"
  32 #include "ehea_phyp.h"
  33
  34 static int ehea_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
  35 {
  36         struct ehea_port *port = netdev_priv(dev);
  37         u32 speed;
  38         int ret;
  39
  40         ret = ehea_sense_port_attr(port);
  41
  42         if (ret)
  43                 return ret;
  44
  45         if (netif_carrier_ok(dev)) {
  46                 switch (port->port_speed) {
  47                 case EHEA_SPEED_10M:
  48                         speed = SPEED_10;
  49                         break;
  50                 case EHEA_SPEED_100M:
  51                         speed = SPEED_100;
  52                         break;
  53                 case EHEA_SPEED_1G:
  54                         speed = SPEED_1000;
  55                         break;
  56                 case EHEA_SPEED_10G:
  57                         speed = SPEED_10000;
  58                         break;
  59                 default:
  60                         speed = -1;
  61                         break; /* BUG */
  62                 }
  63                 cmd->duplex = port->full_duplex == 1 ?
  64                                                      DUPLEX_FULL : DUPLEX_HALF;
  65         } else {
  66                 speed = ~0;
  67                 cmd->duplex = -1;
  68         }
  69         ethtool_cmd_speed_set(cmd, speed);
  70
  71         cmd->supported = (SUPPORTED_10000baseT_Full | SUPPORTED_1000baseT_Full
  72                        | SUPPORTED_100baseT_Full |  SUPPORTED_100baseT_Half
  73                        | SUPPORTED_10baseT_Full | SUPPORTED_10baseT_Half
  74                        | SUPPORTED_Autoneg | SUPPORTED_FIBRE);
  75
  76         cmd->advertising = (ADVERTISED_10000baseT_Full | ADVERTISED_Autoneg
  77                          | ADVERTISED_FIBRE);
  78
  79         cmd->port = PORT_FIBRE;
  80         cmd->autoneg = port->autoneg == 1 ? AUTONEG_ENABLE : AUTONEG_DISABLE;
  81
  82         return 0;
  83 }
  84
  85 static int ehea_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
  86 {
  87         struct ehea_port *port = netdev_priv(dev);
  88         int ret = 0;
  89         u32 sp;
  90
  91         if (cmd->autoneg == AUTONEG_ENABLE) {
  92                 sp = EHEA_SPEED_AUTONEG;
  93                 goto doit;
  94         }
  95
  96         switch (cmd->speed) {
  97         case SPEED_10:
  98                 if (cmd->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->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->duplex == DUPLEX_FULL)
 113                         sp = H_SPEED_1G_F;
 114                 else
 115                         ret = -EINVAL;
 116                 break;
 117
 118         case SPEED_10000:
 119                 if (cmd->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;
 132 doit:
 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");
 140 out:
 141         return ret;
 142 }
 143
 144 static 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
 159 static 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
 166 static u32 ehea_get_msglevel(struct net_device *dev)
 167 {
 168         struct ehea_port *port = netdev_priv(dev);
 169         return port->msg_enable;
 170 }
 171
 172 static 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
 178 static 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         {"SQ stopped"},
 188         {"PR0 free_swqes"},
 189         {"PR1 free_swqes"},
 190         {"PR2 free_swqes"},
 191         {"PR3 free_swqes"},
 192         {"PR4 free_swqes"},
 193         {"PR5 free_swqes"},
 194         {"PR6 free_swqes"},
 195         {"PR7 free_swqes"},
 196         {"LRO aggregated"},
 197         {"LRO flushed"},
 198         {"LRO no_desc"},
 199 };
 200
 201 static void ehea_get_strings(struct net_device *dev, u32 stringset, u8 *data)
 202 {
 203         if (stringset == ETH_SS_STATS) {
 204                 memcpy(data, &ehea_ethtool_stats_keys,
 205                        sizeof(ehea_ethtool_stats_keys));
 206         }
 207 }
 208
 209 static int ehea_get_sset_count(struct net_device *dev, int sset)
 210 {
 211         switch (sset) {
 212         case ETH_SS_STATS:
 213                 return ARRAY_SIZE(ehea_ethtool_stats_keys);
 214         default:
 215                 return -EOPNOTSUPP;
 216         }
 217 }
 218
 219 static void ehea_get_ethtool_stats(struct net_device *dev,
 220                                      struct ethtool_stats *stats, u64 *data)
 221 {
 222         int i, k, tmp;
 223         struct ehea_port *port = netdev_priv(dev);
 224
 225         for (i = 0; i < ehea_get_sset_count(dev, ETH_SS_STATS); i++)
 226                 data[i] = 0;
 227         i = 0;
 228
 229         data[i++] = port->sig_comp_iv;
 230         data[i++] = port->port_res[0].swqe_refill_th;
 231         data[i++] = port->resets;
 232
 233         for (k = 0, tmp = 0; k < EHEA_MAX_PORT_RES; k++)
 234                 tmp += port->port_res[k].p_stats.poll_receive_errors;
 235         data[i++] = tmp;
 236
 237         for (k = 0, tmp = 0; k < EHEA_MAX_PORT_RES; k++)
 238                 tmp += port->port_res[k].p_stats.err_tcp_cksum;
 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_ip_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_frame_crc;
 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.queue_stopped;
 251         data[i++] = tmp;
 252
 253         for (k = 0, tmp = 0; k < EHEA_MAX_PORT_RES; k++)
 254                 tmp |= port->port_res[k].queue_stopped;
 255         data[i++] = tmp;
 256
 257         for (k = 0; k < 8; k++)
 258                 data[i++] = atomic_read(&port->port_res[k].swqe_avail);
 259
 260         for (k = 0, tmp = 0; k < EHEA_MAX_PORT_RES; k++)
 261                 tmp |= port->port_res[k].lro_mgr.stats.aggregated;
 262         data[i++] = tmp;
 263
 264         for (k = 0, tmp = 0; k < EHEA_MAX_PORT_RES; k++)
 265                 tmp |= port->port_res[k].lro_mgr.stats.flushed;
 266         data[i++] = tmp;
 267
 268         for (k = 0, tmp = 0; k < EHEA_MAX_PORT_RES; k++)
 269                 tmp |= port->port_res[k].lro_mgr.stats.no_desc;
 270         data[i++] = tmp;
 271
 272 }
 273
 274 const struct ethtool_ops ehea_ethtool_ops = {
 275         .get_settings = ehea_get_settings,
 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         .set_settings = ehea_set_settings,
 284         .nway_reset = ehea_nway_reset,          /* Restart autonegotiation */
 285 };
 286
 287 void ehea_set_ethtool_ops(struct net_device *netdev)
 288 {
 289         SET_ETHTOOL_OPS(netdev, &ehea_ethtool_ops);
 290 }