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

   1 /*
   2  * Applied Micro X-Gene SoC Ethernet v2 Driver
   3  *
   4  * Copyright (c) 2017, Applied Micro Circuits Corporation
   5  * Author(s): Iyappan Subramanian <isubramanian@apm.com>
   6  *            Keyur Chudgar <kchudgar@apm.com>
   7  *
   8  * This program is free software; you can redistribute  it and/or modify it
   9  * under  the terms of  the GNU General  Public License as published by the
  10  * Free Software Foundation;  either version 2 of the  License, or (at your
  11  * option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20  */
  21
  22 #include "main.h"
  23
  24 #define XGE_STAT(m)             { #m, offsetof(struct xge_pdata, stats.m) }
  25 #define XGE_EXTD_STAT(m, n)                                     \
  26         {                                                       \
  27                 #m,                                             \
  28                 n,                                              \
  29                 0                                               \
  30         }
  31
  32 static const struct xge_gstrings_stats gstrings_stats[] = {
  33         XGE_STAT(rx_packets),
  34         XGE_STAT(tx_packets),
  35         XGE_STAT(rx_bytes),
  36         XGE_STAT(tx_bytes),
  37         XGE_STAT(rx_errors)
  38 };
  39
  40 static struct xge_gstrings_extd_stats gstrings_extd_stats[] = {
  41         XGE_EXTD_STAT(tx_rx_64b_frame_cntr, TR64),
  42         XGE_EXTD_STAT(tx_rx_127b_frame_cntr, TR127),
  43         XGE_EXTD_STAT(tx_rx_255b_frame_cntr, TR255),
  44         XGE_EXTD_STAT(tx_rx_511b_frame_cntr, TR511),
  45         XGE_EXTD_STAT(tx_rx_1023b_frame_cntr, TR1K),
  46         XGE_EXTD_STAT(tx_rx_1518b_frame_cntr, TRMAX),
  47         XGE_EXTD_STAT(tx_rx_1522b_frame_cntr, TRMGV),
  48         XGE_EXTD_STAT(rx_fcs_error_cntr, RFCS),
  49         XGE_EXTD_STAT(rx_multicast_pkt_cntr, RMCA),
  50         XGE_EXTD_STAT(rx_broadcast_pkt_cntr, RBCA),
  51         XGE_EXTD_STAT(rx_ctrl_frame_pkt_cntr, RXCF),
  52         XGE_EXTD_STAT(rx_pause_frame_pkt_cntr, RXPF),
  53         XGE_EXTD_STAT(rx_unk_opcode_cntr, RXUO),
  54         XGE_EXTD_STAT(rx_align_err_cntr, RALN),
  55         XGE_EXTD_STAT(rx_frame_len_err_cntr, RFLR),
  56         XGE_EXTD_STAT(rx_code_err_cntr, RCDE),
  57         XGE_EXTD_STAT(rx_carrier_sense_err_cntr, RCSE),
  58         XGE_EXTD_STAT(rx_undersize_pkt_cntr, RUND),
  59         XGE_EXTD_STAT(rx_oversize_pkt_cntr, ROVR),
  60         XGE_EXTD_STAT(rx_fragments_cntr, RFRG),
  61         XGE_EXTD_STAT(rx_jabber_cntr, RJBR),
  62         XGE_EXTD_STAT(rx_dropped_pkt_cntr, RDRP),
  63         XGE_EXTD_STAT(tx_multicast_pkt_cntr, TMCA),
  64         XGE_EXTD_STAT(tx_broadcast_pkt_cntr, TBCA),
  65         XGE_EXTD_STAT(tx_pause_ctrl_frame_cntr, TXPF),
  66         XGE_EXTD_STAT(tx_defer_pkt_cntr, TDFR),
  67         XGE_EXTD_STAT(tx_excv_defer_pkt_cntr, TEDF),
  68         XGE_EXTD_STAT(tx_single_col_pkt_cntr, TSCL),
  69         XGE_EXTD_STAT(tx_multi_col_pkt_cntr, TMCL),
  70         XGE_EXTD_STAT(tx_late_col_pkt_cntr, TLCL),
  71         XGE_EXTD_STAT(tx_excv_col_pkt_cntr, TXCL),
  72         XGE_EXTD_STAT(tx_total_col_cntr, TNCL),
  73         XGE_EXTD_STAT(tx_pause_frames_hnrd_cntr, TPFH),
  74         XGE_EXTD_STAT(tx_drop_frame_cntr, TDRP),
  75         XGE_EXTD_STAT(tx_jabber_frame_cntr, TJBR),
  76         XGE_EXTD_STAT(tx_fcs_error_cntr, TFCS),
  77         XGE_EXTD_STAT(tx_ctrl_frame_cntr, TXCF),
  78         XGE_EXTD_STAT(tx_oversize_frame_cntr, TOVR),
  79         XGE_EXTD_STAT(tx_undersize_frame_cntr, TUND),
  80         XGE_EXTD_STAT(tx_fragments_cntr, TFRG)
  81 };
  82
  83 #define XGE_STATS_LEN           ARRAY_SIZE(gstrings_stats)
  84 #define XGE_EXTD_STATS_LEN      ARRAY_SIZE(gstrings_extd_stats)
  85
  86 static void xge_mac_get_extd_stats(struct xge_pdata *pdata)
  87 {
  88         u32 data;
  89         int i;
  90
  91         for (i = 0; i < XGE_EXTD_STATS_LEN; i++) {
  92                 data = xge_rd_csr(pdata, gstrings_extd_stats[i].addr);
  93                 gstrings_extd_stats[i].value += data;
  94         }
  95 }
  96
  97 static void xge_get_drvinfo(struct net_device *ndev,
  98                             struct ethtool_drvinfo *info)
  99 {
 100         struct xge_pdata *pdata = netdev_priv(ndev);
 101         struct platform_device *pdev = pdata->pdev;
 102
 103         strcpy(info->driver, "xgene-enet-v2");
 104         strcpy(info->version, XGENE_ENET_V2_VERSION);
 105         snprintf(info->fw_version, ETHTOOL_FWVERS_LEN, "N/A");
 106         sprintf(info->bus_info, "%s", pdev->name);
 107 }
 108
 109 static void xge_get_strings(struct net_device *ndev, u32 stringset, u8 *data)
 110 {
 111         u8 *p = data;
 112         int i;
 113
 114         if (stringset != ETH_SS_STATS)
 115                 return;
 116
 117         for (i = 0; i < XGE_STATS_LEN; i++) {
 118                 memcpy(p, gstrings_stats[i].name, ETH_GSTRING_LEN);
 119                 p += ETH_GSTRING_LEN;
 120         }
 121
 122         for (i = 0; i < XGE_EXTD_STATS_LEN; i++) {
 123                 memcpy(p, gstrings_extd_stats[i].name, ETH_GSTRING_LEN);
 124                 p += ETH_GSTRING_LEN;
 125         }
 126 }
 127
 128 static int xge_get_sset_count(struct net_device *ndev, int sset)
 129 {
 130         if (sset != ETH_SS_STATS)
 131                 return -EINVAL;
 132
 133         return XGE_STATS_LEN + XGE_EXTD_STATS_LEN;
 134 }
 135
 136 static void xge_get_ethtool_stats(struct net_device *ndev,
 137                                   struct ethtool_stats *dummy,
 138                                   u64 *data)
 139 {
 140         void *pdata = netdev_priv(ndev);
 141         int i;
 142
 143         for (i = 0; i < XGE_STATS_LEN; i++)
 144                 *data++ = *(u64 *)(pdata + gstrings_stats[i].offset);
 145
 146         xge_mac_get_extd_stats(pdata);
 147
 148         for (i = 0; i < XGE_EXTD_STATS_LEN; i++)
 149                 *data++ = gstrings_extd_stats[i].value;
 150 }
 151
 152 static int xge_get_link_ksettings(struct net_device *ndev,
 153                                   struct ethtool_link_ksettings *cmd)
 154 {
 155         struct phy_device *phydev = ndev->phydev;
 156
 157         if (!phydev)
 158                 return -ENODEV;
 159
 160         phy_ethtool_ksettings_get(phydev, cmd);
 161
 162         return 0;
 163 }
 164
 165 static int xge_set_link_ksettings(struct net_device *ndev,
 166                                   const struct ethtool_link_ksettings *cmd)
 167 {
 168         struct phy_device *phydev = ndev->phydev;
 169
 170         if (!phydev)
 171                 return -ENODEV;
 172
 173         return phy_ethtool_ksettings_set(phydev, cmd);
 174 }
 175
 176 static const struct ethtool_ops xge_ethtool_ops = {
 177         .get_drvinfo = xge_get_drvinfo,
 178         .get_link = ethtool_op_get_link,
 179         .get_strings = xge_get_strings,
 180         .get_sset_count = xge_get_sset_count,
 181         .get_ethtool_stats = xge_get_ethtool_stats,
 182         .get_link_ksettings = xge_get_link_ksettings,
 183         .set_link_ksettings = xge_set_link_ksettings,
 184 };
 185
 186 void xge_set_ethtool_ops(struct net_device *ndev)
 187 {
 188         ndev->ethtool_ops = &xge_ethtool_ops;
 189 }