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         int ret;
  38
  39         ret = ehea_sense_port_attr(port);
  40
  41         if (ret)
  42                 return ret;
  43
  44         if (netif_carrier_ok(dev)) {
  45                 switch (port->port_speed) {
  46                 case EHEA_SPEED_10M: cmd->speed = SPEED_10; break;
  47                 case EHEA_SPEED_100M: cmd->speed = SPEED_100; break;
  48                 case EHEA_SPEED_1G: cmd->speed = SPEED_1000; break;
  49                 case EHEA_SPEED_10G: cmd->speed = SPEED_10000; break;
  50                 }
  51                 cmd->duplex = port->full_duplex == 1 ?
  52                                                      DUPLEX_FULL : DUPLEX_HALF;
  53         } else {
  54                 cmd->speed = -1;
  55                 cmd->duplex = -1;
  56         }
  57
  58         if (cmd->speed == SPEED_10000) {
  59                 cmd->supported = (SUPPORTED_10000baseT_Full | SUPPORTED_FIBRE);
  60                 cmd->advertising = (ADVERTISED_10000baseT_Full | ADVERTISED_FIBRE);
  61                 cmd->port = PORT_FIBRE;
  62         } else {
  63                 cmd->supported = (SUPPORTED_1000baseT_Full | SUPPORTED_100baseT_Full
  64                                | SUPPORTED_100baseT_Half | SUPPORTED_10baseT_Full
  65                                | SUPPORTED_10baseT_Half | SUPPORTED_Autoneg
  66                                | SUPPORTED_TP);
  67                 cmd->advertising = (ADVERTISED_1000baseT_Full | ADVERTISED_Autoneg
  68                                  | ADVERTISED_TP);
  69                 cmd->port = PORT_TP;
  70         }
  71
  72         cmd->autoneg = port->autoneg == 1 ? AUTONEG_ENABLE : AUTONEG_DISABLE;
  73
  74         return 0;
  75 }
  76
  77 static int ehea_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
  78 {
  79         struct ehea_port *port = netdev_priv(dev);
  80         int ret = 0;
  81         u32 sp;
  82
  83         if (cmd->autoneg == AUTONEG_ENABLE) {
  84                 sp = EHEA_SPEED_AUTONEG;
  85                 goto doit;
  86         }
  87
  88         switch (cmd->speed) {
  89         case SPEED_10:
  90                 if (cmd->duplex == DUPLEX_FULL)
  91                         sp = H_SPEED_10M_F;
  92                 else
  93                         sp = H_SPEED_10M_H;
  94                 break;
  95
  96         case SPEED_100:
  97                 if (cmd->duplex == DUPLEX_FULL)
  98                         sp = H_SPEED_100M_F;
  99                 else
 100                         sp = H_SPEED_100M_H;
 101                 break;
 102
 103         case SPEED_1000:
 104                 if (cmd->duplex == DUPLEX_FULL)
 105                         sp = H_SPEED_1G_F;
 106                 else
 107                         ret = -EINVAL;
 108                 break;
 109
 110         case SPEED_10000:
 111                 if (cmd->duplex == DUPLEX_FULL)
 112                         sp = H_SPEED_10G_F;
 113                 else
 114                         ret = -EINVAL;
 115                 break;
 116
 117         default:
 118                         ret = -EINVAL;
 119                 break;
 120         }
 121
 122         if (ret)
 123                 goto out;
 124 doit:
 125         ret = ehea_set_portspeed(port, sp);
 126
 127         if (!ret)
 128                 netdev_info(dev,
 129                             "Port speed successfully set: %dMbps %s Duplex\n",
 130                             port->port_speed,
 131                             port->full_duplex == 1 ? "Full" : "Half");
 132 out:
 133         return ret;
 134 }
 135
 136 static int ehea_nway_reset(struct net_device *dev)
 137 {
 138         struct ehea_port *port = netdev_priv(dev);
 139         int ret;
 140
 141         ret = ehea_set_portspeed(port, EHEA_SPEED_AUTONEG);
 142
 143         if (!ret)
 144                 netdev_info(port->netdev,
 145                             "Port speed successfully set: %dMbps %s Duplex\n",
 146                             port->port_speed,
 147                             port->full_duplex == 1 ? "Full" : "Half");
 148         return ret;
 149 }
 150
 151 static void ehea_get_drvinfo(struct net_device *dev,
 152                                struct ethtool_drvinfo *info)
 153 {
 154         strlcpy(info->driver, DRV_NAME, sizeof(info->driver));
 155         strlcpy(info->version, DRV_VERSION, sizeof(info->version));
 156 }
 157
 158 static u32 ehea_get_msglevel(struct net_device *dev)
 159 {
 160         struct ehea_port *port = netdev_priv(dev);
 161         return port->msg_enable;
 162 }
 163
 164 static void ehea_set_msglevel(struct net_device *dev, u32 value)
 165 {
 166         struct ehea_port *port = netdev_priv(dev);
 167         port->msg_enable = value;
 168 }
 169
 170 static u32 ehea_get_rx_csum(struct net_device *dev)
 171 {
 172         return 1;
 173 }
 174
 175 static char ehea_ethtool_stats_keys[][ETH_GSTRING_LEN] = {
 176         {"sig_comp_iv"},
 177         {"swqe_refill_th"},
 178         {"port resets"},
 179         {"Receive errors"},
 180         {"TCP cksum errors"},
 181         {"IP cksum errors"},
 182         {"Frame cksum errors"},
 183         {"num SQ stopped"},
 184         {"SQ stopped"},
 185         {"PR0 free_swqes"},
 186         {"PR1 free_swqes"},
 187         {"PR2 free_swqes"},
 188         {"PR3 free_swqes"},
 189         {"PR4 free_swqes"},
 190         {"PR5 free_swqes"},
 191         {"PR6 free_swqes"},
 192         {"PR7 free_swqes"},
 193         {"LRO aggregated"},
 194         {"LRO flushed"},
 195         {"LRO no_desc"},
 196 };
 197
 198 static void ehea_get_strings(struct net_device *dev, u32 stringset, u8 *data)
 199 {
 200         if (stringset == ETH_SS_STATS) {
 201                 memcpy(data, &ehea_ethtool_stats_keys,
 202                        sizeof(ehea_ethtool_stats_keys));
 203         }
 204 }
 205
 206 static int ehea_get_sset_count(struct net_device *dev, int sset)
 207 {
 208         switch (sset) {
 209         case ETH_SS_STATS:
 210                 return ARRAY_SIZE(ehea_ethtool_stats_keys);
 211         default:
 212                 return -EOPNOTSUPP;
 213         }
 214 }
 215
 216 static void ehea_get_ethtool_stats(struct net_device *dev,
 217                                      struct ethtool_stats *stats, u64 *data)
 218 {
 219         int i, k, tmp;
 220         struct ehea_port *port = netdev_priv(dev);
 221
 222         for (i = 0; i < ehea_get_sset_count(dev, ETH_SS_STATS); i++)
 223                 data[i] = 0;
 224         i = 0;
 225
 226         data[i++] = port->sig_comp_iv;
 227         data[i++] = port->port_res[0].swqe_refill_th;
 228         data[i++] = port->resets;
 229
 230         for (k = 0, tmp = 0; k < EHEA_MAX_PORT_RES; k++)
 231                 tmp += port->port_res[k].p_stats.poll_receive_errors;
 232         data[i++] = tmp;
 233
 234         for (k = 0, tmp = 0; k < EHEA_MAX_PORT_RES; k++)
 235                 tmp += port->port_res[k].p_stats.err_tcp_cksum;
 236         data[i++] = tmp;
 237
 238         for (k = 0, tmp = 0; k < EHEA_MAX_PORT_RES; k++)
 239                 tmp += port->port_res[k].p_stats.err_ip_cksum;
 240         data[i++] = tmp;
 241
 242         for (k = 0, tmp = 0; k < EHEA_MAX_PORT_RES; k++)
 243                 tmp += port->port_res[k].p_stats.err_frame_crc;
 244         data[i++] = tmp;
 245
 246         for (k = 0, tmp = 0; k < EHEA_MAX_PORT_RES; k++)
 247                 tmp += port->port_res[k].p_stats.queue_stopped;
 248         data[i++] = tmp;
 249
 250         for (k = 0, tmp = 0; k < EHEA_MAX_PORT_RES; k++)
 251                 tmp |= port->port_res[k].queue_stopped;
 252         data[i++] = tmp;
 253
 254         for (k = 0; k < 8; k++)
 255                 data[i++] = atomic_read(&port->port_res[k].swqe_avail);
 256
 257         for (k = 0, tmp = 0; k < EHEA_MAX_PORT_RES; k++)
 258                 tmp |= port->port_res[k].lro_mgr.stats.aggregated;
 259         data[i++] = tmp;
 260
 261         for (k = 0, tmp = 0; k < EHEA_MAX_PORT_RES; k++)
 262                 tmp |= port->port_res[k].lro_mgr.stats.flushed;
 263         data[i++] = tmp;
 264
 265         for (k = 0, tmp = 0; k < EHEA_MAX_PORT_RES; k++)
 266                 tmp |= port->port_res[k].lro_mgr.stats.no_desc;
 267         data[i++] = tmp;
 268
 269 }
 270
 271 static int ehea_set_flags(struct net_device *dev, u32 data)
 272 {
 273         /* Avoid changing the VLAN flags */
 274         if ((data & (ETH_FLAG_RXVLAN | ETH_FLAG_TXVLAN)) !=
 275             (ethtool_op_get_flags(dev) & (ETH_FLAG_RXVLAN |
 276                                           ETH_FLAG_TXVLAN))){
 277                 return -EINVAL;
 278         }
 279
 280         return ethtool_op_set_flags(dev, data, ETH_FLAG_LRO
 281                                         | ETH_FLAG_TXVLAN
 282                                         | ETH_FLAG_RXVLAN);
 283 }
 284
 285 const struct ethtool_ops ehea_ethtool_ops = {
 286         .get_settings = ehea_get_settings,
 287         .get_drvinfo = ehea_get_drvinfo,
 288         .get_msglevel = ehea_get_msglevel,
 289         .set_msglevel = ehea_set_msglevel,
 290         .get_link = ethtool_op_get_link,
 291         .set_tso = ethtool_op_set_tso,
 292         .get_strings = ehea_get_strings,
 293         .get_sset_count = ehea_get_sset_count,
 294         .get_ethtool_stats = ehea_get_ethtool_stats,
 295         .get_rx_csum = ehea_get_rx_csum,
 296         .set_settings = ehea_set_settings,
 297         .get_flags = ethtool_op_get_flags,
 298         .set_flags = ehea_set_flags,
 299         .nway_reset = ehea_nway_reset,          /* Restart autonegotiation */
 300 };
 301
 302 void ehea_set_ethtool_ops(struct net_device *netdev)
 303 {
 304         SET_ETHTOOL_OPS(netdev, &ehea_ethtool_ops);
 305 }