drivers/net/benet/be_ethtool.c

   1 /*
   2  * Copyright (C) 2005 - 2009 ServerEngines
   3  * All rights reserved.
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License version 2
   7  * as published by the Free Software Foundation.  The full GNU General
   8  * Public License is included in this distribution in the file called COPYING.
   9  *
  10  * Contact Information:
  11  * linux-drivers@serverengines.com
  12  *
  13  * ServerEngines
  14  * 209 N. Fair Oaks Ave
  15  * Sunnyvale, CA 94085
  16  */
  17
  18 #include "be.h"
  19 #include "be_cmds.h"
  20 #include <linux/ethtool.h>
  21
  22 struct be_ethtool_stat {
  23         char desc[ETH_GSTRING_LEN];
  24         int type;
  25         int size;
  26         int offset;
  27 };
  28
  29 enum {NETSTAT, PORTSTAT, MISCSTAT, DRVSTAT, ERXSTAT};
  30 #define FIELDINFO(_struct, field) FIELD_SIZEOF(_struct, field), \
  31                                         offsetof(_struct, field)
  32 #define NETSTAT_INFO(field)     #field, NETSTAT,\
  33                                         FIELDINFO(struct net_device_stats,\
  34                                                 field)
  35 #define DRVSTAT_INFO(field)     #field, DRVSTAT,\
  36                                         FIELDINFO(struct be_drvr_stats, field)
  37 #define MISCSTAT_INFO(field)    #field, MISCSTAT,\
  38                                         FIELDINFO(struct be_rxf_stats, field)
  39 #define PORTSTAT_INFO(field)    #field, PORTSTAT,\
  40                                         FIELDINFO(struct be_port_rxf_stats, \
  41                                                 field)
  42 #define ERXSTAT_INFO(field)     #field, ERXSTAT,\
  43                                         FIELDINFO(struct be_erx_stats, field)
  44
  45 static const struct be_ethtool_stat et_stats[] = {
  46         {NETSTAT_INFO(rx_packets)},
  47         {NETSTAT_INFO(tx_packets)},
  48         {NETSTAT_INFO(rx_bytes)},
  49         {NETSTAT_INFO(tx_bytes)},
  50         {NETSTAT_INFO(rx_errors)},
  51         {NETSTAT_INFO(tx_errors)},
  52         {NETSTAT_INFO(rx_dropped)},
  53         {NETSTAT_INFO(tx_dropped)},
  54         {DRVSTAT_INFO(be_tx_reqs)},
  55         {DRVSTAT_INFO(be_tx_stops)},
  56         {DRVSTAT_INFO(be_fwd_reqs)},
  57         {DRVSTAT_INFO(be_tx_wrbs)},
  58         {DRVSTAT_INFO(be_polls)},
  59         {DRVSTAT_INFO(be_tx_events)},
  60         {DRVSTAT_INFO(be_rx_events)},
  61         {DRVSTAT_INFO(be_tx_compl)},
  62         {DRVSTAT_INFO(be_rx_compl)},
  63         {DRVSTAT_INFO(be_ethrx_post_fail)},
  64         {DRVSTAT_INFO(be_802_3_dropped_frames)},
  65         {DRVSTAT_INFO(be_802_3_malformed_frames)},
  66         {DRVSTAT_INFO(be_tx_rate)},
  67         {DRVSTAT_INFO(be_rx_rate)},
  68         {PORTSTAT_INFO(rx_unicast_frames)},
  69         {PORTSTAT_INFO(rx_multicast_frames)},
  70         {PORTSTAT_INFO(rx_broadcast_frames)},
  71         {PORTSTAT_INFO(rx_crc_errors)},
  72         {PORTSTAT_INFO(rx_alignment_symbol_errors)},
  73         {PORTSTAT_INFO(rx_pause_frames)},
  74         {PORTSTAT_INFO(rx_control_frames)},
  75         {PORTSTAT_INFO(rx_in_range_errors)},
  76         {PORTSTAT_INFO(rx_out_range_errors)},
  77         {PORTSTAT_INFO(rx_frame_too_long)},
  78         {PORTSTAT_INFO(rx_address_match_errors)},
  79         {PORTSTAT_INFO(rx_vlan_mismatch)},
  80         {PORTSTAT_INFO(rx_dropped_too_small)},
  81         {PORTSTAT_INFO(rx_dropped_too_short)},
  82         {PORTSTAT_INFO(rx_dropped_header_too_small)},
  83         {PORTSTAT_INFO(rx_dropped_tcp_length)},
  84         {PORTSTAT_INFO(rx_dropped_runt)},
  85         {PORTSTAT_INFO(rx_fifo_overflow)},
  86         {PORTSTAT_INFO(rx_input_fifo_overflow)},
  87         {PORTSTAT_INFO(rx_ip_checksum_errs)},
  88         {PORTSTAT_INFO(rx_tcp_checksum_errs)},
  89         {PORTSTAT_INFO(rx_udp_checksum_errs)},
  90         {PORTSTAT_INFO(rx_non_rss_packets)},
  91         {PORTSTAT_INFO(rx_ipv4_packets)},
  92         {PORTSTAT_INFO(rx_ipv6_packets)},
  93         {PORTSTAT_INFO(tx_unicastframes)},
  94         {PORTSTAT_INFO(tx_multicastframes)},
  95         {PORTSTAT_INFO(tx_broadcastframes)},
  96         {PORTSTAT_INFO(tx_pauseframes)},
  97         {PORTSTAT_INFO(tx_controlframes)},
  98         {MISCSTAT_INFO(rx_drops_no_pbuf)},
  99         {MISCSTAT_INFO(rx_drops_no_txpb)},
 100         {MISCSTAT_INFO(rx_drops_no_erx_descr)},
 101         {MISCSTAT_INFO(rx_drops_no_tpre_descr)},
 102         {MISCSTAT_INFO(rx_drops_too_many_frags)},
 103         {MISCSTAT_INFO(rx_drops_invalid_ring)},
 104         {MISCSTAT_INFO(forwarded_packets)},
 105         {MISCSTAT_INFO(rx_drops_mtu)},
 106         {ERXSTAT_INFO(rx_drops_no_fragments)},
 107 };
 108 #define ETHTOOL_STATS_NUM ARRAY_SIZE(et_stats)
 109
 110 static void
 111 be_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo)
 112 {
 113         struct be_adapter *adapter = netdev_priv(netdev);
 114
 115         strcpy(drvinfo->driver, DRV_NAME);
 116         strcpy(drvinfo->version, DRV_VER);
 117         strncpy(drvinfo->fw_version, adapter->fw_ver, FW_VER_LEN);
 118         strcpy(drvinfo->bus_info, pci_name(adapter->pdev));
 119         drvinfo->testinfo_len = 0;
 120         drvinfo->regdump_len = 0;
 121         drvinfo->eedump_len = 0;
 122 }
 123
 124 static int
 125 be_get_coalesce(struct net_device *netdev, struct ethtool_coalesce *coalesce)
 126 {
 127         struct be_adapter *adapter = netdev_priv(netdev);
 128         struct be_eq_obj *rx_eq = &adapter->rx_eq;
 129         struct be_eq_obj *tx_eq = &adapter->tx_eq;
 130
 131         coalesce->rx_coalesce_usecs = rx_eq->cur_eqd;
 132         coalesce->rx_coalesce_usecs_high = rx_eq->max_eqd;
 133         coalesce->rx_coalesce_usecs_low = rx_eq->min_eqd;
 134
 135         coalesce->tx_coalesce_usecs = tx_eq->cur_eqd;
 136         coalesce->tx_coalesce_usecs_high = tx_eq->max_eqd;
 137         coalesce->tx_coalesce_usecs_low = tx_eq->min_eqd;
 138
 139         coalesce->use_adaptive_rx_coalesce = rx_eq->enable_aic;
 140         coalesce->use_adaptive_tx_coalesce = tx_eq->enable_aic;
 141
 142         return 0;
 143 }
 144
 145 /*
 146  * This routine is used to set interrup coalescing delay
 147  */
 148 static int
 149 be_set_coalesce(struct net_device *netdev, struct ethtool_coalesce *coalesce)
 150 {
 151         struct be_adapter *adapter = netdev_priv(netdev);
 152         struct be_eq_obj *rx_eq = &adapter->rx_eq;
 153         struct be_eq_obj *tx_eq = &adapter->tx_eq;
 154         u32 tx_max, tx_min, tx_cur;
 155         u32 rx_max, rx_min, rx_cur;
 156         int status = 0;
 157
 158         if (coalesce->use_adaptive_tx_coalesce == 1)
 159                 return -EINVAL;
 160
 161         /* if AIC is being turned on now, start with an EQD of 0 */
 162         if (rx_eq->enable_aic == 0 &&
 163                 coalesce->use_adaptive_rx_coalesce == 1) {
 164                 rx_eq->cur_eqd = 0;
 165         }
 166         rx_eq->enable_aic = coalesce->use_adaptive_rx_coalesce;
 167
 168         rx_max = coalesce->rx_coalesce_usecs_high;
 169         rx_min = coalesce->rx_coalesce_usecs_low;
 170         rx_cur = coalesce->rx_coalesce_usecs;
 171
 172         tx_max = coalesce->tx_coalesce_usecs_high;
 173         tx_min = coalesce->tx_coalesce_usecs_low;
 174         tx_cur = coalesce->tx_coalesce_usecs;
 175
 176         if (tx_cur > BE_MAX_EQD)
 177                 tx_cur = BE_MAX_EQD;
 178         if (tx_eq->cur_eqd != tx_cur) {
 179                 status = be_cmd_modify_eqd(adapter, tx_eq->q.id, tx_cur);
 180                 if (!status)
 181                         tx_eq->cur_eqd = tx_cur;
 182         }
 183
 184         if (rx_eq->enable_aic) {
 185                 if (rx_max > BE_MAX_EQD)
 186                         rx_max = BE_MAX_EQD;
 187                 if (rx_min > rx_max)
 188                         rx_min = rx_max;
 189                 rx_eq->max_eqd = rx_max;
 190                 rx_eq->min_eqd = rx_min;
 191                 if (rx_eq->cur_eqd > rx_max)
 192                         rx_eq->cur_eqd = rx_max;
 193                 if (rx_eq->cur_eqd < rx_min)
 194                         rx_eq->cur_eqd = rx_min;
 195         } else {
 196                 if (rx_cur > BE_MAX_EQD)
 197                         rx_cur = BE_MAX_EQD;
 198                 if (rx_eq->cur_eqd != rx_cur) {
 199                         status = be_cmd_modify_eqd(adapter, rx_eq->q.id,
 200                                         rx_cur);
 201                         if (!status)
 202                                 rx_eq->cur_eqd = rx_cur;
 203                 }
 204         }
 205         return 0;
 206 }
 207
 208 static u32 be_get_rx_csum(struct net_device *netdev)
 209 {
 210         struct be_adapter *adapter = netdev_priv(netdev);
 211
 212         return adapter->rx_csum;
 213 }
 214
 215 static int be_set_rx_csum(struct net_device *netdev, uint32_t data)
 216 {
 217         struct be_adapter *adapter = netdev_priv(netdev);
 218
 219         if (data)
 220                 adapter->rx_csum = true;
 221         else
 222                 adapter->rx_csum = false;
 223
 224         return 0;
 225 }
 226
 227 static void
 228 be_get_ethtool_stats(struct net_device *netdev,
 229                 struct ethtool_stats *stats, uint64_t *data)
 230 {
 231         struct be_adapter *adapter = netdev_priv(netdev);
 232         struct be_drvr_stats *drvr_stats = &adapter->stats.drvr_stats;
 233         struct be_hw_stats *hw_stats = hw_stats_from_cmd(adapter->stats.cmd.va);
 234         struct be_rxf_stats *rxf_stats = &hw_stats->rxf;
 235         struct be_port_rxf_stats *port_stats =
 236                         &rxf_stats->port[adapter->port_num];
 237         struct net_device_stats *net_stats = &adapter->stats.net_stats;
 238         struct be_erx_stats *erx_stats = &hw_stats->erx;
 239         void *p = NULL;
 240         int i;
 241
 242         for (i = 0; i < ETHTOOL_STATS_NUM; i++) {
 243                 switch (et_stats[i].type) {
 244                 case NETSTAT:
 245                         p = net_stats;
 246                         break;
 247                 case DRVSTAT:
 248                         p = drvr_stats;
 249                         break;
 250                 case PORTSTAT:
 251                         p = port_stats;
 252                         break;
 253                 case MISCSTAT:
 254                         p = rxf_stats;
 255                         break;
 256                 case ERXSTAT: /* Currently only one ERX stat is provided */
 257                         p = (u32 *)erx_stats + adapter->rx_obj.q.id;
 258                         break;
 259                 }
 260
 261                 p = (u8 *)p + et_stats[i].offset;
 262                 data[i] = (et_stats[i].size == sizeof(u64)) ?
 263                                 *(u64 *)p: *(u32 *)p;
 264         }
 265
 266         return;
 267 }
 268
 269 static void
 270 be_get_stat_strings(struct net_device *netdev, uint32_t stringset,
 271                 uint8_t *data)
 272 {
 273         int i;
 274         switch (stringset) {
 275         case ETH_SS_STATS:
 276                 for (i = 0; i < ETHTOOL_STATS_NUM; i++) {
 277                         memcpy(data, et_stats[i].desc, ETH_GSTRING_LEN);
 278                         data += ETH_GSTRING_LEN;
 279                 }
 280                 break;
 281         }
 282 }
 283
 284 static int be_get_stats_count(struct net_device *netdev)
 285 {
 286         return ETHTOOL_STATS_NUM;
 287 }
 288
 289 static int be_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
 290 {
 291         ecmd->speed = SPEED_10000;
 292         ecmd->duplex = DUPLEX_FULL;
 293         ecmd->autoneg = AUTONEG_DISABLE;
 294         return 0;
 295 }
 296
 297 static void
 298 be_get_ringparam(struct net_device *netdev, struct ethtool_ringparam *ring)
 299 {
 300         struct be_adapter *adapter = netdev_priv(netdev);
 301
 302         ring->rx_max_pending = adapter->rx_obj.q.len;
 303         ring->tx_max_pending = adapter->tx_obj.q.len;
 304
 305         ring->rx_pending = atomic_read(&adapter->rx_obj.q.used);
 306         ring->tx_pending = atomic_read(&adapter->tx_obj.q.used);
 307 }
 308
 309 static void
 310 be_get_pauseparam(struct net_device *netdev, struct ethtool_pauseparam *ecmd)
 311 {
 312         struct be_adapter *adapter = netdev_priv(netdev);
 313
 314         be_cmd_get_flow_control(adapter, &ecmd->tx_pause, &ecmd->rx_pause);
 315         ecmd->autoneg = 0;
 316 }
 317
 318 static int
 319 be_set_pauseparam(struct net_device *netdev, struct ethtool_pauseparam *ecmd)
 320 {
 321         struct be_adapter *adapter = netdev_priv(netdev);
 322         int status;
 323
 324         if (ecmd->autoneg != 0)
 325                 return -EINVAL;
 326
 327         status = be_cmd_set_flow_control(adapter, ecmd->tx_pause,
 328                         ecmd->rx_pause);
 329         if (!status)
 330                 dev_warn(&adapter->pdev->dev, "Pause param set failed.\n");
 331
 332         return status;
 333 }
 334
 335 static int
 336 be_do_flash(struct net_device *netdev, struct ethtool_flash *efl)
 337 {
 338         struct be_adapter *adapter = netdev_priv(netdev);
 339         char file_name[ETHTOOL_FLASH_MAX_FILENAME];
 340         u32 region;
 341
 342         file_name[ETHTOOL_FLASH_MAX_FILENAME - 1] = 0;
 343         strcpy(file_name, efl->data);
 344         region = efl->region;
 345
 346         return be_load_fw(adapter, file_name);
 347 }
 348
 349 const struct ethtool_ops be_ethtool_ops = {
 350         .get_settings = be_get_settings,
 351         .get_drvinfo = be_get_drvinfo,
 352         .get_link = ethtool_op_get_link,
 353         .get_coalesce = be_get_coalesce,
 354         .set_coalesce = be_set_coalesce,
 355         .get_ringparam = be_get_ringparam,
 356         .get_pauseparam = be_get_pauseparam,
 357         .set_pauseparam = be_set_pauseparam,
 358         .get_rx_csum = be_get_rx_csum,
 359         .set_rx_csum = be_set_rx_csum,
 360         .get_tx_csum = ethtool_op_get_tx_csum,
 361         .set_tx_csum = ethtool_op_set_tx_csum,
 362         .get_sg = ethtool_op_get_sg,
 363         .set_sg = ethtool_op_set_sg,
 364         .get_tso = ethtool_op_get_tso,
 365         .set_tso = ethtool_op_set_tso,
 366         .get_strings = be_get_stat_strings,
 367         .get_stats_count = be_get_stats_count,
 368         .get_ethtool_stats = be_get_ethtool_stats,
 369         .flash_device = be_do_flash,
 370 };