drivers/net/spider_net_ethtool.c

   1 /*
   2  * Network device driver for Cell Processor-Based Blade
   3  *
   4  * (C) Copyright IBM Corp. 2005
   5  *
   6  * Authors : Utz Bacher <utz.bacher@de.ibm.com>
   7  *           Jens Osterkamp <Jens.Osterkamp@de.ibm.com>
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2, or (at your option)
  12  * any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  22  */
  23
  24 #include <linux/netdevice.h>
  25 #include <linux/ethtool.h>
  26 #include <linux/pci.h>
  27
  28 #include "spider_net.h"
  29
  30
  31 #define SPIDER_NET_NUM_STATS 13
  32
  33 static struct {
  34         const char str[ETH_GSTRING_LEN];
  35 } ethtool_stats_keys[] = {
  36         { "tx_packets" },
  37         { "tx_bytes" },
  38         { "rx_packets" },
  39         { "rx_bytes" },
  40         { "tx_errors" },
  41         { "tx_dropped" },
  42         { "rx_dropped" },
  43         { "rx_descriptor_error" },
  44         { "tx_timeouts" },
  45         { "alloc_rx_skb_error" },
  46         { "rx_iommu_map_error" },
  47         { "tx_iommu_map_error" },
  48         { "rx_desc_unk_state" },
  49 };
  50
  51 static int
  52 spider_net_ethtool_get_settings(struct net_device *netdev,
  53                                struct ethtool_cmd *cmd)
  54 {
  55         struct spider_net_card *card;
  56         card = netdev_priv(netdev);
  57
  58         cmd->supported   = (SUPPORTED_1000baseT_Full |
  59                              SUPPORTED_FIBRE);
  60         cmd->advertising = (ADVERTISED_1000baseT_Full |
  61                              ADVERTISED_FIBRE);
  62         cmd->port = PORT_FIBRE;
  63         cmd->speed = card->phy.speed;
  64         cmd->duplex = DUPLEX_FULL;
  65
  66         return 0;
  67 }
  68
  69 static void
  70 spider_net_ethtool_get_drvinfo(struct net_device *netdev,
  71                                struct ethtool_drvinfo *drvinfo)
  72 {
  73         struct spider_net_card *card;
  74         card = netdev_priv(netdev);
  75
  76         /* clear and fill out info */
  77         memset(drvinfo, 0, sizeof(struct ethtool_drvinfo));
  78         strncpy(drvinfo->driver, spider_net_driver_name, 32);
  79         strncpy(drvinfo->version, VERSION, 32);
  80         strcpy(drvinfo->fw_version, "no information");
  81         strncpy(drvinfo->bus_info, pci_name(card->pdev), 32);
  82 }
  83
  84 static void
  85 spider_net_ethtool_get_wol(struct net_device *netdev,
  86                            struct ethtool_wolinfo *wolinfo)
  87 {
  88         /* no support for wol */
  89         wolinfo->supported = 0;
  90         wolinfo->wolopts = 0;
  91 }
  92
  93 static u32
  94 spider_net_ethtool_get_msglevel(struct net_device *netdev)
  95 {
  96         struct spider_net_card *card;
  97         card = netdev_priv(netdev);
  98         return card->msg_enable;
  99 }
 100
 101 static void
 102 spider_net_ethtool_set_msglevel(struct net_device *netdev,
 103                                 u32 level)
 104 {
 105         struct spider_net_card *card;
 106         card = netdev_priv(netdev);
 107         card->msg_enable = level;
 108 }
 109
 110 static int
 111 spider_net_ethtool_nway_reset(struct net_device *netdev)
 112 {
 113         if (netif_running(netdev)) {
 114                 spider_net_stop(netdev);
 115                 spider_net_open(netdev);
 116         }
 117         return 0;
 118 }
 119
 120 static u32
 121 spider_net_ethtool_get_rx_csum(struct net_device *netdev)
 122 {
 123         struct spider_net_card *card = netdev->priv;
 124
 125         return card->options.rx_csum;
 126 }
 127
 128 static int
 129 spider_net_ethtool_set_rx_csum(struct net_device *netdev, u32 n)
 130 {
 131         struct spider_net_card *card = netdev->priv;
 132
 133         card->options.rx_csum = n;
 134         return 0;
 135 }
 136
 137 static uint32_t
 138 spider_net_ethtool_get_tx_csum(struct net_device *netdev)
 139 {
 140         return (netdev->features & NETIF_F_HW_CSUM) != 0;
 141 }
 142
 143 static int
 144 spider_net_ethtool_set_tx_csum(struct net_device *netdev, uint32_t data)
 145 {
 146         if (data)
 147                 netdev->features |= NETIF_F_HW_CSUM;
 148         else
 149                 netdev->features &= ~NETIF_F_HW_CSUM;
 150
 151         return 0;
 152 }
 153
 154 static void
 155 spider_net_ethtool_get_ringparam(struct net_device *netdev,
 156                                  struct ethtool_ringparam *ering)
 157 {
 158         struct spider_net_card *card = netdev->priv;
 159
 160         ering->tx_max_pending = SPIDER_NET_TX_DESCRIPTORS_MAX;
 161         ering->tx_pending = card->tx_chain.num_desc;
 162         ering->rx_max_pending = SPIDER_NET_RX_DESCRIPTORS_MAX;
 163         ering->rx_pending = card->rx_chain.num_desc;
 164 }
 165
 166 static int spider_net_get_stats_count(struct net_device *netdev)
 167 {
 168         return SPIDER_NET_NUM_STATS;
 169 }
 170
 171 static void spider_net_get_ethtool_stats(struct net_device *netdev,
 172                 struct ethtool_stats *stats, u64 *data)
 173 {
 174         struct spider_net_card *card = netdev->priv;
 175
 176         data[0] = card->netdev_stats.tx_packets;
 177         data[1] = card->netdev_stats.tx_bytes;
 178         data[2] = card->netdev_stats.rx_packets;
 179         data[3] = card->netdev_stats.rx_bytes;
 180         data[4] = card->netdev_stats.tx_errors;
 181         data[5] = card->netdev_stats.tx_dropped;
 182         data[6] = card->netdev_stats.rx_dropped;
 183         data[7] = card->spider_stats.rx_desc_error;
 184         data[8] = card->spider_stats.tx_timeouts;
 185         data[9] = card->spider_stats.alloc_rx_skb_error;
 186         data[10] = card->spider_stats.rx_iommu_map_error;
 187         data[11] = card->spider_stats.tx_iommu_map_error;
 188         data[12] = card->spider_stats.rx_desc_unk_state;
 189 }
 190
 191 static void spider_net_get_strings(struct net_device *netdev, u32 stringset,
 192                                    u8 *data)
 193 {
 194         memcpy(data, ethtool_stats_keys, sizeof(ethtool_stats_keys));
 195 }
 196
 197 const struct ethtool_ops spider_net_ethtool_ops = {
 198         .get_settings           = spider_net_ethtool_get_settings,
 199         .get_drvinfo            = spider_net_ethtool_get_drvinfo,
 200         .get_wol                = spider_net_ethtool_get_wol,
 201         .get_msglevel           = spider_net_ethtool_get_msglevel,
 202         .set_msglevel           = spider_net_ethtool_set_msglevel,
 203         .nway_reset             = spider_net_ethtool_nway_reset,
 204         .get_rx_csum            = spider_net_ethtool_get_rx_csum,
 205         .set_rx_csum            = spider_net_ethtool_set_rx_csum,
 206         .get_tx_csum            = spider_net_ethtool_get_tx_csum,
 207         .set_tx_csum            = spider_net_ethtool_set_tx_csum,
 208         .get_ringparam          = spider_net_ethtool_get_ringparam,
 209         .get_strings            = spider_net_get_strings,
 210         .get_stats_count        = spider_net_get_stats_count,
 211         .get_ethtool_stats      = spider_net_get_ethtool_stats,
 212 };
 213