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