drivers/net/ethernet/apm/xgene-v2/ethtool.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * Applied Micro X-Gene SoC Ethernet v2 Driver
   4  *
   5  * Copyright (c) 2017, Applied Micro Circuits Corporation
   6  * Author(s): Iyappan Subramanian <isubramanian@apm.com>
   7  *            Keyur Chudgar <kchudgar@apm.com>
   8  */
   9
  10 #include "main.h"
  11
  12 #define XGE_STAT(m)             { #m, offsetof(struct xge_pdata, stats.m) }
  13 #define XGE_EXTD_STAT(m, n)                                     \
  14         {                                                       \
  15                 #m,                                             \
  16                 n,                                              \
  17                 0                                               \
  18         }
  19
  20 static const struct xge_gstrings_stats gstrings_stats[] = {
  21         XGE_STAT(rx_packets),
  22         XGE_STAT(tx_packets),
  23         XGE_STAT(rx_bytes),
  24         XGE_STAT(tx_bytes),
  25         XGE_STAT(rx_errors)
  26 };
  27
  28 static struct xge_gstrings_extd_stats gstrings_extd_stats[] = {
  29         XGE_EXTD_STAT(tx_rx_64b_frame_cntr, TR64),
  30         XGE_EXTD_STAT(tx_rx_127b_frame_cntr, TR127),
  31         XGE_EXTD_STAT(tx_rx_255b_frame_cntr, TR255),
  32         XGE_EXTD_STAT(tx_rx_511b_frame_cntr, TR511),
  33         XGE_EXTD_STAT(tx_rx_1023b_frame_cntr, TR1K),
  34         XGE_EXTD_STAT(tx_rx_1518b_frame_cntr, TRMAX),
  35         XGE_EXTD_STAT(tx_rx_1522b_frame_cntr, TRMGV),
  36         XGE_EXTD_STAT(rx_fcs_error_cntr, RFCS),
  37         XGE_EXTD_STAT(rx_multicast_pkt_cntr, RMCA),
  38         XGE_EXTD_STAT(rx_broadcast_pkt_cntr, RBCA),
  39         XGE_EXTD_STAT(rx_ctrl_frame_pkt_cntr, RXCF),
  40         XGE_EXTD_STAT(rx_pause_frame_pkt_cntr, RXPF),
  41         XGE_EXTD_STAT(rx_unk_opcode_cntr, RXUO),
  42         XGE_EXTD_STAT(rx_align_err_cntr, RALN),
  43         XGE_EXTD_STAT(rx_frame_len_err_cntr, RFLR),
  44         XGE_EXTD_STAT(rx_code_err_cntr, RCDE),
  45         XGE_EXTD_STAT(rx_carrier_sense_err_cntr, RCSE),
  46         XGE_EXTD_STAT(rx_undersize_pkt_cntr, RUND),
  47         XGE_EXTD_STAT(rx_oversize_pkt_cntr, ROVR),
  48         XGE_EXTD_STAT(rx_fragments_cntr, RFRG),
  49         XGE_EXTD_STAT(rx_jabber_cntr, RJBR),
  50         XGE_EXTD_STAT(rx_dropped_pkt_cntr, RDRP),
  51         XGE_EXTD_STAT(tx_multicast_pkt_cntr, TMCA),
  52         XGE_EXTD_STAT(tx_broadcast_pkt_cntr, TBCA),
  53         XGE_EXTD_STAT(tx_pause_ctrl_frame_cntr, TXPF),
  54         XGE_EXTD_STAT(tx_defer_pkt_cntr, TDFR),
  55         XGE_EXTD_STAT(tx_excv_defer_pkt_cntr, TEDF),
  56         XGE_EXTD_STAT(tx_single_col_pkt_cntr, TSCL),
  57         XGE_EXTD_STAT(tx_multi_col_pkt_cntr, TMCL),
  58         XGE_EXTD_STAT(tx_late_col_pkt_cntr, TLCL),
  59         XGE_EXTD_STAT(tx_excv_col_pkt_cntr, TXCL),
  60         XGE_EXTD_STAT(tx_total_col_cntr, TNCL),
  61         XGE_EXTD_STAT(tx_pause_frames_hnrd_cntr, TPFH),
  62         XGE_EXTD_STAT(tx_drop_frame_cntr, TDRP),
  63         XGE_EXTD_STAT(tx_jabber_frame_cntr, TJBR),
  64         XGE_EXTD_STAT(tx_fcs_error_cntr, TFCS),
  65         XGE_EXTD_STAT(tx_ctrl_frame_cntr, TXCF),
  66         XGE_EXTD_STAT(tx_oversize_frame_cntr, TOVR),
  67         XGE_EXTD_STAT(tx_undersize_frame_cntr, TUND),
  68         XGE_EXTD_STAT(tx_fragments_cntr, TFRG)
  69 };
  70
  71 #define XGE_STATS_LEN           ARRAY_SIZE(gstrings_stats)
  72 #define XGE_EXTD_STATS_LEN      ARRAY_SIZE(gstrings_extd_stats)
  73
  74 static void xge_mac_get_extd_stats(struct xge_pdata *pdata)
  75 {
  76         u32 data;
  77         int i;
  78
  79         for (i = 0; i < XGE_EXTD_STATS_LEN; i++) {
  80                 data = xge_rd_csr(pdata, gstrings_extd_stats[i].addr);
  81                 gstrings_extd_stats[i].value += data;
  82         }
  83 }
  84
  85 static void xge_get_drvinfo(struct net_device *ndev,
  86                             struct ethtool_drvinfo *info)
  87 {
  88         struct xge_pdata *pdata = netdev_priv(ndev);
  89         struct platform_device *pdev = pdata->pdev;
  90
  91         strcpy(info->driver, "xgene-enet-v2");
  92         strcpy(info->version, XGENE_ENET_V2_VERSION);
  93         snprintf(info->fw_version, ETHTOOL_FWVERS_LEN, "N/A");
  94         sprintf(info->bus_info, "%s", pdev->name);
  95 }
  96
  97 static void xge_get_strings(struct net_device *ndev, u32 stringset, u8 *data)
  98 {
  99         u8 *p = data;
 100         int i;
 101
 102         if (stringset != ETH_SS_STATS)
 103                 return;
 104
 105         for (i = 0; i < XGE_STATS_LEN; i++) {
 106                 memcpy(p, gstrings_stats[i].name, ETH_GSTRING_LEN);
 107                 p += ETH_GSTRING_LEN;
 108         }
 109
 110         for (i = 0; i < XGE_EXTD_STATS_LEN; i++) {
 111                 memcpy(p, gstrings_extd_stats[i].name, ETH_GSTRING_LEN);
 112                 p += ETH_GSTRING_LEN;
 113         }
 114 }
 115
 116 static int xge_get_sset_count(struct net_device *ndev, int sset)
 117 {
 118         if (sset != ETH_SS_STATS)
 119                 return -EINVAL;
 120
 121         return XGE_STATS_LEN + XGE_EXTD_STATS_LEN;
 122 }
 123
 124 static void xge_get_ethtool_stats(struct net_device *ndev,
 125                                   struct ethtool_stats *dummy,
 126                                   u64 *data)
 127 {
 128         void *pdata = netdev_priv(ndev);
 129         int i;
 130
 131         for (i = 0; i < XGE_STATS_LEN; i++)
 132                 *data++ = *(u64 *)(pdata + gstrings_stats[i].offset);
 133
 134         xge_mac_get_extd_stats(pdata);
 135
 136         for (i = 0; i < XGE_EXTD_STATS_LEN; i++)
 137                 *data++ = gstrings_extd_stats[i].value;
 138 }
 139
 140 static int xge_get_link_ksettings(struct net_device *ndev,
 141                                   struct ethtool_link_ksettings *cmd)
 142 {
 143         struct phy_device *phydev = ndev->phydev;
 144
 145         if (!phydev)
 146                 return -ENODEV;
 147
 148         phy_ethtool_ksettings_get(phydev, cmd);
 149
 150         return 0;
 151 }
 152
 153 static int xge_set_link_ksettings(struct net_device *ndev,
 154                                   const struct ethtool_link_ksettings *cmd)
 155 {
 156         struct phy_device *phydev = ndev->phydev;
 157
 158         if (!phydev)
 159                 return -ENODEV;
 160
 161         return phy_ethtool_ksettings_set(phydev, cmd);
 162 }
 163
 164 static const struct ethtool_ops xge_ethtool_ops = {
 165         .get_drvinfo = xge_get_drvinfo,
 166         .get_link = ethtool_op_get_link,
 167         .get_strings = xge_get_strings,
 168         .get_sset_count = xge_get_sset_count,
 169         .get_ethtool_stats = xge_get_ethtool_stats,
 170         .get_link_ksettings = xge_get_link_ksettings,
 171         .set_link_ksettings = xge_set_link_ksettings,
 172 };
 173
 174 void xge_set_ethtool_ops(struct net_device *ndev)
 175 {
 176         ndev->ethtool_ops = &xge_ethtool_ops;
 177 }