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         sprintf(info->bus_info, "%s", pdev->name);
  93 }
  94
  95 static void xge_get_strings(struct net_device *ndev, u32 stringset, u8 *data)
  96 {
  97         u8 *p = data;
  98         int i;
  99
 100         if (stringset != ETH_SS_STATS)
 101                 return;
 102
 103         for (i = 0; i < XGE_STATS_LEN; i++) {
 104                 memcpy(p, gstrings_stats[i].name, ETH_GSTRING_LEN);
 105                 p += ETH_GSTRING_LEN;
 106         }
 107
 108         for (i = 0; i < XGE_EXTD_STATS_LEN; i++) {
 109                 memcpy(p, gstrings_extd_stats[i].name, ETH_GSTRING_LEN);
 110                 p += ETH_GSTRING_LEN;
 111         }
 112 }
 113
 114 static int xge_get_sset_count(struct net_device *ndev, int sset)
 115 {
 116         if (sset != ETH_SS_STATS)
 117                 return -EINVAL;
 118
 119         return XGE_STATS_LEN + XGE_EXTD_STATS_LEN;
 120 }
 121
 122 static void xge_get_ethtool_stats(struct net_device *ndev,
 123                                   struct ethtool_stats *dummy,
 124                                   u64 *data)
 125 {
 126         void *pdata = netdev_priv(ndev);
 127         int i;
 128
 129         for (i = 0; i < XGE_STATS_LEN; i++)
 130                 *data++ = *(u64 *)(pdata + gstrings_stats[i].offset);
 131
 132         xge_mac_get_extd_stats(pdata);
 133
 134         for (i = 0; i < XGE_EXTD_STATS_LEN; i++)
 135                 *data++ = gstrings_extd_stats[i].value;
 136 }
 137
 138 static int xge_get_link_ksettings(struct net_device *ndev,
 139                                   struct ethtool_link_ksettings *cmd)
 140 {
 141         struct phy_device *phydev = ndev->phydev;
 142
 143         if (!phydev)
 144                 return -ENODEV;
 145
 146         phy_ethtool_ksettings_get(phydev, cmd);
 147
 148         return 0;
 149 }
 150
 151 static int xge_set_link_ksettings(struct net_device *ndev,
 152                                   const struct ethtool_link_ksettings *cmd)
 153 {
 154         struct phy_device *phydev = ndev->phydev;
 155
 156         if (!phydev)
 157                 return -ENODEV;
 158
 159         return phy_ethtool_ksettings_set(phydev, cmd);
 160 }
 161
 162 static const struct ethtool_ops xge_ethtool_ops = {
 163         .get_drvinfo = xge_get_drvinfo,
 164         .get_link = ethtool_op_get_link,
 165         .get_strings = xge_get_strings,
 166         .get_sset_count = xge_get_sset_count,
 167         .get_ethtool_stats = xge_get_ethtool_stats,
 168         .get_link_ksettings = xge_get_link_ksettings,
 169         .set_link_ksettings = xge_set_link_ksettings,
 170 };
 171
 172 void xge_set_ethtool_ops(struct net_device *ndev)
 173 {
 174         ndev->ethtool_ops = &xge_ethtool_ops;
 175 }