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_rx_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 const char et_self_tests[][ETH_GSTRING_LEN] = {
 111         "MAC Loopback test",
 112         "PHY Loopback test",
 113         "External Loopback test",
 114         "DDR DMA test"
 115 };
 116
 117 #define ETHTOOL_TESTS_NUM ARRAY_SIZE(et_self_tests)
 118 #define BE_MAC_LOOPBACK 0x0
 119 #define BE_PHY_LOOPBACK 0x1
 120 #define BE_ONE_PORT_EXT_LOOPBACK 0x2
 121
 122 static void
 123 be_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo)
 124 {
 125         struct be_adapter *adapter = netdev_priv(netdev);
 126
 127         strcpy(drvinfo->driver, DRV_NAME);
 128         strcpy(drvinfo->version, DRV_VER);
 129         strncpy(drvinfo->fw_version, adapter->fw_ver, FW_VER_LEN);
 130         strcpy(drvinfo->bus_info, pci_name(adapter->pdev));
 131         drvinfo->testinfo_len = 0;
 132         drvinfo->regdump_len = 0;
 133         drvinfo->eedump_len = 0;
 134 }
 135
 136 static int
 137 be_get_coalesce(struct net_device *netdev, struct ethtool_coalesce *coalesce)
 138 {
 139         struct be_adapter *adapter = netdev_priv(netdev);
 140         struct be_eq_obj *rx_eq = &adapter->rx_eq;
 141         struct be_eq_obj *tx_eq = &adapter->tx_eq;
 142
 143         coalesce->rx_coalesce_usecs = rx_eq->cur_eqd;
 144         coalesce->rx_coalesce_usecs_high = rx_eq->max_eqd;
 145         coalesce->rx_coalesce_usecs_low = rx_eq->min_eqd;
 146
 147         coalesce->tx_coalesce_usecs = tx_eq->cur_eqd;
 148         coalesce->tx_coalesce_usecs_high = tx_eq->max_eqd;
 149         coalesce->tx_coalesce_usecs_low = tx_eq->min_eqd;
 150
 151         coalesce->use_adaptive_rx_coalesce = rx_eq->enable_aic;
 152         coalesce->use_adaptive_tx_coalesce = tx_eq->enable_aic;
 153
 154         return 0;
 155 }
 156
 157 /*
 158  * This routine is used to set interrup coalescing delay
 159  */
 160 static int
 161 be_set_coalesce(struct net_device *netdev, struct ethtool_coalesce *coalesce)
 162 {
 163         struct be_adapter *adapter = netdev_priv(netdev);
 164         struct be_eq_obj *rx_eq = &adapter->rx_eq;
 165         struct be_eq_obj *tx_eq = &adapter->tx_eq;
 166         u32 tx_max, tx_min, tx_cur;
 167         u32 rx_max, rx_min, rx_cur;
 168         int status = 0;
 169
 170         if (coalesce->use_adaptive_tx_coalesce == 1)
 171                 return -EINVAL;
 172
 173         /* if AIC is being turned on now, start with an EQD of 0 */
 174         if (rx_eq->enable_aic == 0 &&
 175                 coalesce->use_adaptive_rx_coalesce == 1) {
 176                 rx_eq->cur_eqd = 0;
 177         }
 178         rx_eq->enable_aic = coalesce->use_adaptive_rx_coalesce;
 179
 180         rx_max = coalesce->rx_coalesce_usecs_high;
 181         rx_min = coalesce->rx_coalesce_usecs_low;
 182         rx_cur = coalesce->rx_coalesce_usecs;
 183
 184         tx_max = coalesce->tx_coalesce_usecs_high;
 185         tx_min = coalesce->tx_coalesce_usecs_low;
 186         tx_cur = coalesce->tx_coalesce_usecs;
 187
 188         if (tx_cur > BE_MAX_EQD)
 189                 tx_cur = BE_MAX_EQD;
 190         if (tx_eq->cur_eqd != tx_cur) {
 191                 status = be_cmd_modify_eqd(adapter, tx_eq->q.id, tx_cur);
 192                 if (!status)
 193                         tx_eq->cur_eqd = tx_cur;
 194         }
 195
 196         if (rx_eq->enable_aic) {
 197                 if (rx_max > BE_MAX_EQD)
 198                         rx_max = BE_MAX_EQD;
 199                 if (rx_min > rx_max)
 200                         rx_min = rx_max;
 201                 rx_eq->max_eqd = rx_max;
 202                 rx_eq->min_eqd = rx_min;
 203                 if (rx_eq->cur_eqd > rx_max)
 204                         rx_eq->cur_eqd = rx_max;
 205                 if (rx_eq->cur_eqd < rx_min)
 206                         rx_eq->cur_eqd = rx_min;
 207         } else {
 208                 if (rx_cur > BE_MAX_EQD)
 209                         rx_cur = BE_MAX_EQD;
 210                 if (rx_eq->cur_eqd != rx_cur) {
 211                         status = be_cmd_modify_eqd(adapter, rx_eq->q.id,
 212                                         rx_cur);
 213                         if (!status)
 214                                 rx_eq->cur_eqd = rx_cur;
 215                 }
 216         }
 217         return 0;
 218 }
 219
 220 static u32 be_get_rx_csum(struct net_device *netdev)
 221 {
 222         struct be_adapter *adapter = netdev_priv(netdev);
 223
 224         return adapter->rx_csum;
 225 }
 226
 227 static int be_set_rx_csum(struct net_device *netdev, uint32_t data)
 228 {
 229         struct be_adapter *adapter = netdev_priv(netdev);
 230
 231         if (data)
 232                 adapter->rx_csum = true;
 233         else
 234                 adapter->rx_csum = false;
 235
 236         return 0;
 237 }
 238
 239 static void
 240 be_get_ethtool_stats(struct net_device *netdev,
 241                 struct ethtool_stats *stats, uint64_t *data)
 242 {
 243         struct be_adapter *adapter = netdev_priv(netdev);
 244         struct be_drvr_stats *drvr_stats = &adapter->stats.drvr_stats;
 245         struct be_hw_stats *hw_stats = hw_stats_from_cmd(adapter->stats.cmd.va);
 246         struct be_rxf_stats *rxf_stats = &hw_stats->rxf;
 247         struct be_port_rxf_stats *port_stats =
 248                         &rxf_stats->port[adapter->port_num];
 249         struct net_device_stats *net_stats = &netdev->stats;
 250         struct be_erx_stats *erx_stats = &hw_stats->erx;
 251         void *p = NULL;
 252         int i;
 253
 254         for (i = 0; i < ETHTOOL_STATS_NUM; i++) {
 255                 switch (et_stats[i].type) {
 256                 case NETSTAT:
 257                         p = net_stats;
 258                         break;
 259                 case DRVSTAT:
 260                         p = drvr_stats;
 261                         break;
 262                 case PORTSTAT:
 263                         p = port_stats;
 264                         break;
 265                 case MISCSTAT:
 266                         p = rxf_stats;
 267                         break;
 268                 case ERXSTAT: /* Currently only one ERX stat is provided */
 269                         p = (u32 *)erx_stats + adapter->rx_obj.q.id;
 270                         break;
 271                 }
 272
 273                 p = (u8 *)p + et_stats[i].offset;
 274                 data[i] = (et_stats[i].size == sizeof(u64)) ?
 275                                 *(u64 *)p: *(u32 *)p;
 276         }
 277
 278         return;
 279 }
 280
 281 static void
 282 be_get_stat_strings(struct net_device *netdev, uint32_t stringset,
 283                 uint8_t *data)
 284 {
 285         int i;
 286         switch (stringset) {
 287         case ETH_SS_STATS:
 288                 for (i = 0; i < ETHTOOL_STATS_NUM; i++) {
 289                         memcpy(data, et_stats[i].desc, ETH_GSTRING_LEN);
 290                         data += ETH_GSTRING_LEN;
 291                 }
 292                 break;
 293         case ETH_SS_TEST:
 294                 for (i = 0; i < ETHTOOL_TESTS_NUM; i++) {
 295                         memcpy(data, et_self_tests[i], ETH_GSTRING_LEN);
 296                         data += ETH_GSTRING_LEN;
 297                 }
 298                 break;
 299         }
 300 }
 301
 302 static int be_get_sset_count(struct net_device *netdev, int stringset)
 303 {
 304         switch (stringset) {
 305         case ETH_SS_TEST:
 306                 return ETHTOOL_TESTS_NUM;
 307         case ETH_SS_STATS:
 308                 return ETHTOOL_STATS_NUM;
 309         default:
 310                 return -EINVAL;
 311         }
 312 }
 313
 314 static int be_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
 315 {
 316         struct be_adapter *adapter = netdev_priv(netdev);
 317         u8 mac_speed = 0, connector = 0;
 318         u16 link_speed = 0;
 319         bool link_up = false;
 320         int status;
 321
 322         if (adapter->link_speed < 0) {
 323                 status = be_cmd_link_status_query(adapter, &link_up,
 324                                                 &mac_speed, &link_speed);
 325
 326                 /* link_speed is in units of 10 Mbps */
 327                 if (link_speed) {
 328                         ecmd->speed = link_speed*10;
 329                 } else {
 330                         switch (mac_speed) {
 331                         case PHY_LINK_SPEED_1GBPS:
 332                                 ecmd->speed = SPEED_1000;
 333                                 break;
 334                         case PHY_LINK_SPEED_10GBPS:
 335                                 ecmd->speed = SPEED_10000;
 336                                 break;
 337                         }
 338                 }
 339
 340                 status = be_cmd_read_port_type(adapter, adapter->port_num,
 341                                                 &connector);
 342                 switch (connector) {
 343                 case 7:
 344                         ecmd->port = PORT_FIBRE;
 345                         break;
 346                 default:
 347                         ecmd->port = PORT_TP;
 348                         break;
 349                 }
 350
 351                 /* Save for future use */
 352                 adapter->link_speed = ecmd->speed;
 353                 adapter->port_type = ecmd->port;
 354         } else {
 355                 ecmd->speed = adapter->link_speed;
 356                 ecmd->port = adapter->port_type;
 357         }
 358
 359         ecmd->duplex = DUPLEX_FULL;
 360         ecmd->autoneg = AUTONEG_DISABLE;
 361         ecmd->supported = (SUPPORTED_10000baseT_Full | SUPPORTED_TP);
 362         ecmd->phy_address = adapter->port_num;
 363         ecmd->transceiver = XCVR_INTERNAL;
 364
 365         return 0;
 366 }
 367
 368 static void
 369 be_get_ringparam(struct net_device *netdev, struct ethtool_ringparam *ring)
 370 {
 371         struct be_adapter *adapter = netdev_priv(netdev);
 372
 373         ring->rx_max_pending = adapter->rx_obj.q.len;
 374         ring->tx_max_pending = adapter->tx_obj.q.len;
 375
 376         ring->rx_pending = atomic_read(&adapter->rx_obj.q.used);
 377         ring->tx_pending = atomic_read(&adapter->tx_obj.q.used);
 378 }
 379
 380 static void
 381 be_get_pauseparam(struct net_device *netdev, struct ethtool_pauseparam *ecmd)
 382 {
 383         struct be_adapter *adapter = netdev_priv(netdev);
 384
 385         be_cmd_get_flow_control(adapter, &ecmd->tx_pause, &ecmd->rx_pause);
 386         ecmd->autoneg = 0;
 387 }
 388
 389 static int
 390 be_set_pauseparam(struct net_device *netdev, struct ethtool_pauseparam *ecmd)
 391 {
 392         struct be_adapter *adapter = netdev_priv(netdev);
 393         int status;
 394
 395         if (ecmd->autoneg != 0)
 396                 return -EINVAL;
 397         adapter->tx_fc = ecmd->tx_pause;
 398         adapter->rx_fc = ecmd->rx_pause;
 399
 400         status = be_cmd_set_flow_control(adapter,
 401                                         adapter->tx_fc, adapter->rx_fc);
 402         if (status)
 403                 dev_warn(&adapter->pdev->dev, "Pause param set failed.\n");
 404
 405         return status;
 406 }
 407
 408 static int
 409 be_phys_id(struct net_device *netdev, u32 data)
 410 {
 411         struct be_adapter *adapter = netdev_priv(netdev);
 412         int status;
 413         u32 cur;
 414
 415         be_cmd_get_beacon_state(adapter, adapter->port_num, &cur);
 416
 417         if (cur == BEACON_STATE_ENABLED)
 418                 return 0;
 419
 420         if (data < 2)
 421                 data = 2;
 422
 423         status = be_cmd_set_beacon_state(adapter, adapter->port_num, 0, 0,
 424                         BEACON_STATE_ENABLED);
 425         set_current_state(TASK_INTERRUPTIBLE);
 426         schedule_timeout(data*HZ);
 427
 428         status = be_cmd_set_beacon_state(adapter, adapter->port_num, 0, 0,
 429                         BEACON_STATE_DISABLED);
 430
 431         return status;
 432 }
 433
 434 static void
 435 be_get_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
 436 {
 437         struct be_adapter *adapter = netdev_priv(netdev);
 438
 439         wol->supported = WAKE_MAGIC;
 440         if (adapter->wol)
 441                 wol->wolopts = WAKE_MAGIC;
 442         else
 443                 wol->wolopts = 0;
 444         memset(&wol->sopass, 0, sizeof(wol->sopass));
 445         return;
 446 }
 447
 448 static int
 449 be_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
 450 {
 451         struct be_adapter *adapter = netdev_priv(netdev);
 452
 453         if (wol->wolopts & ~WAKE_MAGIC)
 454                 return -EINVAL;
 455
 456         if (wol->wolopts & WAKE_MAGIC)
 457                 adapter->wol = true;
 458         else
 459                 adapter->wol = false;
 460
 461         return 0;
 462 }
 463
 464 static int
 465 be_test_ddr_dma(struct be_adapter *adapter)
 466 {
 467         int ret, i;
 468         struct be_dma_mem ddrdma_cmd;
 469         u64 pattern[2] = {0x5a5a5a5a5a5a5a5a, 0xa5a5a5a5a5a5a5a5};
 470
 471         ddrdma_cmd.size = sizeof(struct be_cmd_req_ddrdma_test);
 472         ddrdma_cmd.va = pci_alloc_consistent(adapter->pdev, ddrdma_cmd.size,
 473                                         &ddrdma_cmd.dma);
 474         if (!ddrdma_cmd.va) {
 475                 dev_err(&adapter->pdev->dev, "Memory allocation failure \n");
 476                 return -ENOMEM;
 477         }
 478
 479         for (i = 0; i < 2; i++) {
 480                 ret = be_cmd_ddr_dma_test(adapter, pattern[i],
 481                                         4096, &ddrdma_cmd);
 482                 if (ret != 0)
 483                         goto err;
 484         }
 485
 486 err:
 487         pci_free_consistent(adapter->pdev, ddrdma_cmd.size,
 488                         ddrdma_cmd.va, ddrdma_cmd.dma);
 489         return ret;
 490 }
 491
 492 static void
 493 be_self_test(struct net_device *netdev, struct ethtool_test *test, u64 *data)
 494 {
 495         struct be_adapter *adapter = netdev_priv(netdev);
 496
 497         memset(data, 0, sizeof(u64) * ETHTOOL_TESTS_NUM);
 498
 499         if (test->flags & ETH_TEST_FL_OFFLINE) {
 500                 data[0] = be_cmd_loopback_test(adapter, adapter->port_num,
 501                                                 BE_MAC_LOOPBACK, 1500,
 502                                                 2, 0xabc);
 503                 if (data[0] != 0)
 504                         test->flags |= ETH_TEST_FL_FAILED;
 505
 506                 data[1] = be_cmd_loopback_test(adapter, adapter->port_num,
 507                                                 BE_PHY_LOOPBACK, 1500,
 508                                                 2, 0xabc);
 509                 if (data[1] != 0)
 510                         test->flags |= ETH_TEST_FL_FAILED;
 511
 512                 data[2] = be_cmd_loopback_test(adapter, adapter->port_num,
 513                                                 BE_ONE_PORT_EXT_LOOPBACK,
 514                                                 1500, 2, 0xabc);
 515                 if (data[2] != 0)
 516                         test->flags |= ETH_TEST_FL_FAILED;
 517
 518                 data[3] = be_test_ddr_dma(adapter);
 519                 if (data[3] != 0)
 520                         test->flags |= ETH_TEST_FL_FAILED;
 521         }
 522
 523 }
 524
 525 static int
 526 be_do_flash(struct net_device *netdev, struct ethtool_flash *efl)
 527 {
 528         struct be_adapter *adapter = netdev_priv(netdev);
 529         char file_name[ETHTOOL_FLASH_MAX_FILENAME];
 530         u32 region;
 531
 532         file_name[ETHTOOL_FLASH_MAX_FILENAME - 1] = 0;
 533         strcpy(file_name, efl->data);
 534         region = efl->region;
 535
 536         return be_load_fw(adapter, file_name);
 537 }
 538
 539 const struct ethtool_ops be_ethtool_ops = {
 540         .get_settings = be_get_settings,
 541         .get_drvinfo = be_get_drvinfo,
 542         .get_wol = be_get_wol,
 543         .set_wol = be_set_wol,
 544         .get_link = ethtool_op_get_link,
 545         .get_coalesce = be_get_coalesce,
 546         .set_coalesce = be_set_coalesce,
 547         .get_ringparam = be_get_ringparam,
 548         .get_pauseparam = be_get_pauseparam,
 549         .set_pauseparam = be_set_pauseparam,
 550         .get_rx_csum = be_get_rx_csum,
 551         .set_rx_csum = be_set_rx_csum,
 552         .get_tx_csum = ethtool_op_get_tx_csum,
 553         .set_tx_csum = ethtool_op_set_tx_hw_csum,
 554         .get_sg = ethtool_op_get_sg,
 555         .set_sg = ethtool_op_set_sg,
 556         .get_tso = ethtool_op_get_tso,
 557         .set_tso = ethtool_op_set_tso,
 558         .get_strings = be_get_stat_strings,
 559         .phys_id = be_phys_id,
 560         .get_sset_count = be_get_sset_count,
 561         .get_ethtool_stats = be_get_ethtool_stats,
 562         .flash_device = be_do_flash,
 563         .self_test = be_self_test,
 564 };