drivers/net/ethernet/toshiba/spider_net_ethtool.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * Network device driver for Cell Processor-Based Blade
   4  *
   5  * (C) Copyright IBM Corp. 2005
   6  *
   7  * Authors : Utz Bacher <utz.bacher@de.ibm.com>
   8  *           Jens Osterkamp <Jens.Osterkamp@de.ibm.com>
   9  */
  10
  11 #include <linux/netdevice.h>
  12 #include <linux/ethtool.h>
  13 #include <linux/pci.h>
  14
  15 #include "spider_net.h"
  16
  17
  18 static struct {
  19         const char str[ETH_GSTRING_LEN];
  20 } ethtool_stats_keys[] = {
  21         { "tx_packets" },
  22         { "tx_bytes" },
  23         { "rx_packets" },
  24         { "rx_bytes" },
  25         { "tx_errors" },
  26         { "tx_dropped" },
  27         { "rx_dropped" },
  28         { "rx_descriptor_error" },
  29         { "tx_timeouts" },
  30         { "alloc_rx_skb_error" },
  31         { "rx_iommu_map_error" },
  32         { "tx_iommu_map_error" },
  33         { "rx_desc_unk_state" },
  34 };
  35
  36 static int
  37 spider_net_ethtool_get_link_ksettings(struct net_device *netdev,
  38                                       struct ethtool_link_ksettings *cmd)
  39 {
  40         struct spider_net_card *card;
  41         card = netdev_priv(netdev);
  42
  43         ethtool_link_ksettings_zero_link_mode(cmd, supported);
  44         ethtool_link_ksettings_add_link_mode(cmd, supported, 1000baseT_Full);
  45         ethtool_link_ksettings_add_link_mode(cmd, supported, FIBRE);
  46
  47         ethtool_link_ksettings_zero_link_mode(cmd, advertising);
  48         ethtool_link_ksettings_add_link_mode(cmd, advertising, 1000baseT_Full);
  49         ethtool_link_ksettings_add_link_mode(cmd, advertising, FIBRE);
  50
  51         cmd->base.port = PORT_FIBRE;
  52         cmd->base.speed = card->phy.speed;
  53         cmd->base.duplex = DUPLEX_FULL;
  54
  55         return 0;
  56 }
  57
  58 static void
  59 spider_net_ethtool_get_drvinfo(struct net_device *netdev,
  60                                struct ethtool_drvinfo *drvinfo)
  61 {
  62         struct spider_net_card *card;
  63         card = netdev_priv(netdev);
  64
  65         /* clear and fill out info */
  66         strlcpy(drvinfo->driver, spider_net_driver_name,
  67                 sizeof(drvinfo->driver));
  68         strlcpy(drvinfo->version, VERSION, sizeof(drvinfo->version));
  69         strlcpy(drvinfo->fw_version, "no information",
  70                 sizeof(drvinfo->fw_version));
  71         strlcpy(drvinfo->bus_info, pci_name(card->pdev),
  72                 sizeof(drvinfo->bus_info));
  73 }
  74
  75 static void
  76 spider_net_ethtool_get_wol(struct net_device *netdev,
  77                            struct ethtool_wolinfo *wolinfo)
  78 {
  79         /* no support for wol */
  80         wolinfo->supported = 0;
  81         wolinfo->wolopts = 0;
  82 }
  83
  84 static u32
  85 spider_net_ethtool_get_msglevel(struct net_device *netdev)
  86 {
  87         struct spider_net_card *card;
  88         card = netdev_priv(netdev);
  89         return card->msg_enable;
  90 }
  91
  92 static void
  93 spider_net_ethtool_set_msglevel(struct net_device *netdev,
  94                                 u32 level)
  95 {
  96         struct spider_net_card *card;
  97         card = netdev_priv(netdev);
  98         card->msg_enable = level;
  99 }
 100
 101 static int
 102 spider_net_ethtool_nway_reset(struct net_device *netdev)
 103 {
 104         if (netif_running(netdev)) {
 105                 spider_net_stop(netdev);
 106                 spider_net_open(netdev);
 107         }
 108         return 0;
 109 }
 110
 111 static void
 112 spider_net_ethtool_get_ringparam(struct net_device *netdev,
 113                                  struct ethtool_ringparam *ering)
 114 {
 115         struct spider_net_card *card = netdev_priv(netdev);
 116
 117         ering->tx_max_pending = SPIDER_NET_TX_DESCRIPTORS_MAX;
 118         ering->tx_pending = card->tx_chain.num_desc;
 119         ering->rx_max_pending = SPIDER_NET_RX_DESCRIPTORS_MAX;
 120         ering->rx_pending = card->rx_chain.num_desc;
 121 }
 122
 123 static int spider_net_get_sset_count(struct net_device *netdev, int sset)
 124 {
 125         switch (sset) {
 126         case ETH_SS_STATS:
 127                 return ARRAY_SIZE(ethtool_stats_keys);
 128         default:
 129                 return -EOPNOTSUPP;
 130         }
 131 }
 132
 133 static void spider_net_get_ethtool_stats(struct net_device *netdev,
 134                 struct ethtool_stats *stats, u64 *data)
 135 {
 136         struct spider_net_card *card = netdev_priv(netdev);
 137
 138         data[0] = netdev->stats.tx_packets;
 139         data[1] = netdev->stats.tx_bytes;
 140         data[2] = netdev->stats.rx_packets;
 141         data[3] = netdev->stats.rx_bytes;
 142         data[4] = netdev->stats.tx_errors;
 143         data[5] = netdev->stats.tx_dropped;
 144         data[6] = netdev->stats.rx_dropped;
 145         data[7] = card->spider_stats.rx_desc_error;
 146         data[8] = card->spider_stats.tx_timeouts;
 147         data[9] = card->spider_stats.alloc_rx_skb_error;
 148         data[10] = card->spider_stats.rx_iommu_map_error;
 149         data[11] = card->spider_stats.tx_iommu_map_error;
 150         data[12] = card->spider_stats.rx_desc_unk_state;
 151 }
 152
 153 static void spider_net_get_strings(struct net_device *netdev, u32 stringset,
 154                                    u8 *data)
 155 {
 156         memcpy(data, ethtool_stats_keys, sizeof(ethtool_stats_keys));
 157 }
 158
 159 const struct ethtool_ops spider_net_ethtool_ops = {
 160         .get_drvinfo            = spider_net_ethtool_get_drvinfo,
 161         .get_wol                = spider_net_ethtool_get_wol,
 162         .get_msglevel           = spider_net_ethtool_get_msglevel,
 163         .set_msglevel           = spider_net_ethtool_set_msglevel,
 164         .get_link               = ethtool_op_get_link,
 165         .nway_reset             = spider_net_ethtool_nway_reset,
 166         .get_ringparam          = spider_net_ethtool_get_ringparam,
 167         .get_strings            = spider_net_get_strings,
 168         .get_sset_count         = spider_net_get_sset_count,
 169         .get_ethtool_stats      = spider_net_get_ethtool_stats,
 170         .get_link_ksettings     = spider_net_ethtool_get_link_ksettings,
 171 };
 172