drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c

   1 /* Broadcom NetXtreme-C/E network driver.
   2  *
   3  * Copyright (c) 2014-2015 Broadcom Corporation
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation.
   8  */
   9
  10 #include <linux/ethtool.h>
  11 #include <linux/interrupt.h>
  12 #include <linux/pci.h>
  13 #include <linux/etherdevice.h>
  14 #include <linux/crc32.h>
  15 #include <linux/firmware.h>
  16 #include "bnxt_hsi.h"
  17 #include "bnxt.h"
  18 #include "bnxt_ethtool.h"
  19 #include "bnxt_nvm_defs.h"      /* NVRAM content constant and structure defs */
  20 #include "bnxt_fw_hdr.h"        /* Firmware hdr constant and structure defs */
  21 #define FLASH_NVRAM_TIMEOUT     ((HWRM_CMD_TIMEOUT) * 100)
  22
  23 static u32 bnxt_get_msglevel(struct net_device *dev)
  24 {
  25         struct bnxt *bp = netdev_priv(dev);
  26
  27         return bp->msg_enable;
  28 }
  29
  30 static void bnxt_set_msglevel(struct net_device *dev, u32 value)
  31 {
  32         struct bnxt *bp = netdev_priv(dev);
  33
  34         bp->msg_enable = value;
  35 }
  36
  37 static int bnxt_get_coalesce(struct net_device *dev,
  38                              struct ethtool_coalesce *coal)
  39 {
  40         struct bnxt *bp = netdev_priv(dev);
  41
  42         memset(coal, 0, sizeof(*coal));
  43
  44         coal->rx_coalesce_usecs =
  45                 max_t(u16, BNXT_COAL_TIMER_TO_USEC(bp->coal_ticks), 1);
  46         coal->rx_max_coalesced_frames = bp->coal_bufs / 2;
  47         coal->rx_coalesce_usecs_irq =
  48                 max_t(u16, BNXT_COAL_TIMER_TO_USEC(bp->coal_ticks_irq), 1);
  49         coal->rx_max_coalesced_frames_irq = bp->coal_bufs_irq / 2;
  50
  51         return 0;
  52 }
  53
  54 static int bnxt_set_coalesce(struct net_device *dev,
  55                              struct ethtool_coalesce *coal)
  56 {
  57         struct bnxt *bp = netdev_priv(dev);
  58         int rc = 0;
  59
  60         bp->coal_ticks = BNXT_USEC_TO_COAL_TIMER(coal->rx_coalesce_usecs);
  61         bp->coal_bufs = coal->rx_max_coalesced_frames * 2;
  62         bp->coal_ticks_irq =
  63                 BNXT_USEC_TO_COAL_TIMER(coal->rx_coalesce_usecs_irq);
  64         bp->coal_bufs_irq = coal->rx_max_coalesced_frames_irq * 2;
  65
  66         if (netif_running(dev))
  67                 rc = bnxt_hwrm_set_coal(bp);
  68
  69         return rc;
  70 }
  71
  72 #define BNXT_NUM_STATS  21
  73
  74 static int bnxt_get_sset_count(struct net_device *dev, int sset)
  75 {
  76         struct bnxt *bp = netdev_priv(dev);
  77
  78         switch (sset) {
  79         case ETH_SS_STATS:
  80                 return BNXT_NUM_STATS * bp->cp_nr_rings;
  81         default:
  82                 return -EOPNOTSUPP;
  83         }
  84 }
  85
  86 static void bnxt_get_ethtool_stats(struct net_device *dev,
  87                                    struct ethtool_stats *stats, u64 *buf)
  88 {
  89         u32 i, j = 0;
  90         struct bnxt *bp = netdev_priv(dev);
  91         u32 buf_size = sizeof(struct ctx_hw_stats) * bp->cp_nr_rings;
  92         u32 stat_fields = sizeof(struct ctx_hw_stats) / 8;
  93
  94         memset(buf, 0, buf_size);
  95
  96         if (!bp->bnapi)
  97                 return;
  98
  99         for (i = 0; i < bp->cp_nr_rings; i++) {
 100                 struct bnxt_napi *bnapi = bp->bnapi[i];
 101                 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring;
 102                 __le64 *hw_stats = (__le64 *)cpr->hw_stats;
 103                 int k;
 104
 105                 for (k = 0; k < stat_fields; j++, k++)
 106                         buf[j] = le64_to_cpu(hw_stats[k]);
 107                 buf[j++] = cpr->rx_l4_csum_errors;
 108         }
 109 }
 110
 111 static void bnxt_get_strings(struct net_device *dev, u32 stringset, u8 *buf)
 112 {
 113         struct bnxt *bp = netdev_priv(dev);
 114         u32 i;
 115
 116         switch (stringset) {
 117         /* The number of strings must match BNXT_NUM_STATS defined above. */
 118         case ETH_SS_STATS:
 119                 for (i = 0; i < bp->cp_nr_rings; i++) {
 120                         sprintf(buf, "[%d]: rx_ucast_packets", i);
 121                         buf += ETH_GSTRING_LEN;
 122                         sprintf(buf, "[%d]: rx_mcast_packets", i);
 123                         buf += ETH_GSTRING_LEN;
 124                         sprintf(buf, "[%d]: rx_bcast_packets", i);
 125                         buf += ETH_GSTRING_LEN;
 126                         sprintf(buf, "[%d]: rx_discards", i);
 127                         buf += ETH_GSTRING_LEN;
 128                         sprintf(buf, "[%d]: rx_drops", i);
 129                         buf += ETH_GSTRING_LEN;
 130                         sprintf(buf, "[%d]: rx_ucast_bytes", i);
 131                         buf += ETH_GSTRING_LEN;
 132                         sprintf(buf, "[%d]: rx_mcast_bytes", i);
 133                         buf += ETH_GSTRING_LEN;
 134                         sprintf(buf, "[%d]: rx_bcast_bytes", i);
 135                         buf += ETH_GSTRING_LEN;
 136                         sprintf(buf, "[%d]: tx_ucast_packets", i);
 137                         buf += ETH_GSTRING_LEN;
 138                         sprintf(buf, "[%d]: tx_mcast_packets", i);
 139                         buf += ETH_GSTRING_LEN;
 140                         sprintf(buf, "[%d]: tx_bcast_packets", i);
 141                         buf += ETH_GSTRING_LEN;
 142                         sprintf(buf, "[%d]: tx_discards", i);
 143                         buf += ETH_GSTRING_LEN;
 144                         sprintf(buf, "[%d]: tx_drops", i);
 145                         buf += ETH_GSTRING_LEN;
 146                         sprintf(buf, "[%d]: tx_ucast_bytes", i);
 147                         buf += ETH_GSTRING_LEN;
 148                         sprintf(buf, "[%d]: tx_mcast_bytes", i);
 149                         buf += ETH_GSTRING_LEN;
 150                         sprintf(buf, "[%d]: tx_bcast_bytes", i);
 151                         buf += ETH_GSTRING_LEN;
 152                         sprintf(buf, "[%d]: tpa_packets", i);
 153                         buf += ETH_GSTRING_LEN;
 154                         sprintf(buf, "[%d]: tpa_bytes", i);
 155                         buf += ETH_GSTRING_LEN;
 156                         sprintf(buf, "[%d]: tpa_events", i);
 157                         buf += ETH_GSTRING_LEN;
 158                         sprintf(buf, "[%d]: tpa_aborts", i);
 159                         buf += ETH_GSTRING_LEN;
 160                         sprintf(buf, "[%d]: rx_l4_csum_errors", i);
 161                         buf += ETH_GSTRING_LEN;
 162                 }
 163                 break;
 164         default:
 165                 netdev_err(bp->dev, "bnxt_get_strings invalid request %x\n",
 166                            stringset);
 167                 break;
 168         }
 169 }
 170
 171 static void bnxt_get_ringparam(struct net_device *dev,
 172                                struct ethtool_ringparam *ering)
 173 {
 174         struct bnxt *bp = netdev_priv(dev);
 175
 176         ering->rx_max_pending = BNXT_MAX_RX_DESC_CNT;
 177         ering->rx_jumbo_max_pending = BNXT_MAX_RX_JUM_DESC_CNT;
 178         ering->tx_max_pending = BNXT_MAX_TX_DESC_CNT;
 179
 180         ering->rx_pending = bp->rx_ring_size;
 181         ering->rx_jumbo_pending = bp->rx_agg_ring_size;
 182         ering->tx_pending = bp->tx_ring_size;
 183 }
 184
 185 static int bnxt_set_ringparam(struct net_device *dev,
 186                               struct ethtool_ringparam *ering)
 187 {
 188         struct bnxt *bp = netdev_priv(dev);
 189
 190         if ((ering->rx_pending > BNXT_MAX_RX_DESC_CNT) ||
 191             (ering->tx_pending > BNXT_MAX_TX_DESC_CNT) ||
 192             (ering->tx_pending <= MAX_SKB_FRAGS))
 193                 return -EINVAL;
 194
 195         if (netif_running(dev))
 196                 bnxt_close_nic(bp, false, false);
 197
 198         bp->rx_ring_size = ering->rx_pending;
 199         bp->tx_ring_size = ering->tx_pending;
 200         bnxt_set_ring_params(bp);
 201
 202         if (netif_running(dev))
 203                 return bnxt_open_nic(bp, false, false);
 204
 205         return 0;
 206 }
 207
 208 static void bnxt_get_channels(struct net_device *dev,
 209                               struct ethtool_channels *channel)
 210 {
 211         struct bnxt *bp = netdev_priv(dev);
 212         int max_rx_rings, max_tx_rings, tcs;
 213
 214         bnxt_get_max_rings(bp, &max_rx_rings, &max_tx_rings, true);
 215         channel->max_combined = max_rx_rings;
 216
 217         bnxt_get_max_rings(bp, &max_rx_rings, &max_tx_rings, false);
 218         tcs = netdev_get_num_tc(dev);
 219         if (tcs > 1)
 220                 max_tx_rings /= tcs;
 221
 222         channel->max_rx = max_rx_rings;
 223         channel->max_tx = max_tx_rings;
 224         channel->max_other = 0;
 225         if (bp->flags & BNXT_FLAG_SHARED_RINGS) {
 226                 channel->combined_count = bp->rx_nr_rings;
 227         } else {
 228                 channel->rx_count = bp->rx_nr_rings;
 229                 channel->tx_count = bp->tx_nr_rings_per_tc;
 230         }
 231 }
 232
 233 static int bnxt_set_channels(struct net_device *dev,
 234                              struct ethtool_channels *channel)
 235 {
 236         struct bnxt *bp = netdev_priv(dev);
 237         int max_rx_rings, max_tx_rings, tcs;
 238         u32 rc = 0;
 239         bool sh = false;
 240
 241         if (channel->other_count)
 242                 return -EINVAL;
 243
 244         if (!channel->combined_count &&
 245             (!channel->rx_count || !channel->tx_count))
 246                 return -EINVAL;
 247
 248         if (channel->combined_count &&
 249             (channel->rx_count || channel->tx_count))
 250                 return -EINVAL;
 251
 252         if (channel->combined_count)
 253                 sh = true;
 254
 255         bnxt_get_max_rings(bp, &max_rx_rings, &max_tx_rings, sh);
 256
 257         tcs = netdev_get_num_tc(dev);
 258         if (tcs > 1)
 259                 max_tx_rings /= tcs;
 260
 261         if (sh && (channel->combined_count > max_rx_rings ||
 262                    channel->combined_count > max_tx_rings))
 263                 return -ENOMEM;
 264
 265         if (!sh && (channel->rx_count > max_rx_rings ||
 266                     channel->tx_count > max_tx_rings))
 267                 return -ENOMEM;
 268
 269         if (netif_running(dev)) {
 270                 if (BNXT_PF(bp)) {
 271                         /* TODO CHIMP_FW: Send message to all VF's
 272                          * before PF unload
 273                          */
 274                 }
 275                 rc = bnxt_close_nic(bp, true, false);
 276                 if (rc) {
 277                         netdev_err(bp->dev, "Set channel failure rc :%x\n",
 278                                    rc);
 279                         return rc;
 280                 }
 281         }
 282
 283         if (sh) {
 284                 bp->flags |= BNXT_FLAG_SHARED_RINGS;
 285                 bp->rx_nr_rings = channel->combined_count;
 286                 bp->tx_nr_rings_per_tc = channel->combined_count;
 287         } else {
 288                 bp->flags &= ~BNXT_FLAG_SHARED_RINGS;
 289                 bp->rx_nr_rings = channel->rx_count;
 290                 bp->tx_nr_rings_per_tc = channel->tx_count;
 291         }
 292
 293         bp->tx_nr_rings = bp->tx_nr_rings_per_tc;
 294         if (tcs > 1)
 295                 bp->tx_nr_rings = bp->tx_nr_rings_per_tc * tcs;
 296
 297         bp->cp_nr_rings = sh ? max_t(int, bp->tx_nr_rings, bp->rx_nr_rings) :
 298                                bp->tx_nr_rings + bp->rx_nr_rings;
 299
 300         bp->num_stat_ctxs = bp->cp_nr_rings;
 301
 302         /* After changing number of rx channels, update NTUPLE feature. */
 303         netdev_update_features(dev);
 304         if (netif_running(dev)) {
 305                 rc = bnxt_open_nic(bp, true, false);
 306                 if ((!rc) && BNXT_PF(bp)) {
 307                         /* TODO CHIMP_FW: Send message to all VF's
 308                          * to renable
 309                          */
 310                 }
 311         }
 312
 313         return rc;
 314 }
 315
 316 #ifdef CONFIG_RFS_ACCEL
 317 static int bnxt_grxclsrlall(struct bnxt *bp, struct ethtool_rxnfc *cmd,
 318                             u32 *rule_locs)
 319 {
 320         int i, j = 0;
 321
 322         cmd->data = bp->ntp_fltr_count;
 323         for (i = 0; i < BNXT_NTP_FLTR_HASH_SIZE; i++) {
 324                 struct hlist_head *head;
 325                 struct bnxt_ntuple_filter *fltr;
 326
 327                 head = &bp->ntp_fltr_hash_tbl[i];
 328                 rcu_read_lock();
 329                 hlist_for_each_entry_rcu(fltr, head, hash) {
 330                         if (j == cmd->rule_cnt)
 331                                 break;
 332                         rule_locs[j++] = fltr->sw_id;
 333                 }
 334                 rcu_read_unlock();
 335                 if (j == cmd->rule_cnt)
 336                         break;
 337         }
 338         cmd->rule_cnt = j;
 339         return 0;
 340 }
 341
 342 static int bnxt_grxclsrule(struct bnxt *bp, struct ethtool_rxnfc *cmd)
 343 {
 344         struct ethtool_rx_flow_spec *fs =
 345                 (struct ethtool_rx_flow_spec *)&cmd->fs;
 346         struct bnxt_ntuple_filter *fltr;
 347         struct flow_keys *fkeys;
 348         int i, rc = -EINVAL;
 349
 350         if (fs->location < 0 || fs->location >= BNXT_NTP_FLTR_MAX_FLTR)
 351                 return rc;
 352
 353         for (i = 0; i < BNXT_NTP_FLTR_HASH_SIZE; i++) {
 354                 struct hlist_head *head;
 355
 356                 head = &bp->ntp_fltr_hash_tbl[i];
 357                 rcu_read_lock();
 358                 hlist_for_each_entry_rcu(fltr, head, hash) {
 359                         if (fltr->sw_id == fs->location)
 360                                 goto fltr_found;
 361                 }
 362                 rcu_read_unlock();
 363         }
 364         return rc;
 365
 366 fltr_found:
 367         fkeys = &fltr->fkeys;
 368         if (fkeys->basic.ip_proto == IPPROTO_TCP)
 369                 fs->flow_type = TCP_V4_FLOW;
 370         else if (fkeys->basic.ip_proto == IPPROTO_UDP)
 371                 fs->flow_type = UDP_V4_FLOW;
 372         else
 373                 goto fltr_err;
 374
 375         fs->h_u.tcp_ip4_spec.ip4src = fkeys->addrs.v4addrs.src;
 376         fs->m_u.tcp_ip4_spec.ip4src = cpu_to_be32(~0);
 377
 378         fs->h_u.tcp_ip4_spec.ip4dst = fkeys->addrs.v4addrs.dst;
 379         fs->m_u.tcp_ip4_spec.ip4dst = cpu_to_be32(~0);
 380
 381         fs->h_u.tcp_ip4_spec.psrc = fkeys->ports.src;
 382         fs->m_u.tcp_ip4_spec.psrc = cpu_to_be16(~0);
 383
 384         fs->h_u.tcp_ip4_spec.pdst = fkeys->ports.dst;
 385         fs->m_u.tcp_ip4_spec.pdst = cpu_to_be16(~0);
 386
 387         fs->ring_cookie = fltr->rxq;
 388         rc = 0;
 389
 390 fltr_err:
 391         rcu_read_unlock();
 392
 393         return rc;
 394 }
 395
 396 static int bnxt_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd,
 397                           u32 *rule_locs)
 398 {
 399         struct bnxt *bp = netdev_priv(dev);
 400         int rc = 0;
 401
 402         switch (cmd->cmd) {
 403         case ETHTOOL_GRXRINGS:
 404                 cmd->data = bp->rx_nr_rings;
 405                 break;
 406
 407         case ETHTOOL_GRXCLSRLCNT:
 408                 cmd->rule_cnt = bp->ntp_fltr_count;
 409                 cmd->data = BNXT_NTP_FLTR_MAX_FLTR;
 410                 break;
 411
 412         case ETHTOOL_GRXCLSRLALL:
 413                 rc = bnxt_grxclsrlall(bp, cmd, (u32 *)rule_locs);
 414                 break;
 415
 416         case ETHTOOL_GRXCLSRULE:
 417                 rc = bnxt_grxclsrule(bp, cmd);
 418                 break;
 419
 420         default:
 421                 rc = -EOPNOTSUPP;
 422                 break;
 423         }
 424
 425         return rc;
 426 }
 427 #endif
 428
 429 static u32 bnxt_get_rxfh_indir_size(struct net_device *dev)
 430 {
 431         return HW_HASH_INDEX_SIZE;
 432 }
 433
 434 static u32 bnxt_get_rxfh_key_size(struct net_device *dev)
 435 {
 436         return HW_HASH_KEY_SIZE;
 437 }
 438
 439 static int bnxt_get_rxfh(struct net_device *dev, u32 *indir, u8 *key,
 440                          u8 *hfunc)
 441 {
 442         struct bnxt *bp = netdev_priv(dev);
 443         struct bnxt_vnic_info *vnic = &bp->vnic_info[0];
 444         int i = 0;
 445
 446         if (hfunc)
 447                 *hfunc = ETH_RSS_HASH_TOP;
 448
 449         if (indir)
 450                 for (i = 0; i < HW_HASH_INDEX_SIZE; i++)
 451                         indir[i] = le16_to_cpu(vnic->rss_table[i]);
 452
 453         if (key)
 454                 memcpy(key, vnic->rss_hash_key, HW_HASH_KEY_SIZE);
 455
 456         return 0;
 457 }
 458
 459 static void bnxt_get_drvinfo(struct net_device *dev,
 460                              struct ethtool_drvinfo *info)
 461 {
 462         struct bnxt *bp = netdev_priv(dev);
 463
 464         strlcpy(info->driver, DRV_MODULE_NAME, sizeof(info->driver));
 465         strlcpy(info->version, DRV_MODULE_VERSION, sizeof(info->version));
 466         strlcpy(info->fw_version, bp->fw_ver_str, sizeof(info->fw_version));
 467         strlcpy(info->bus_info, pci_name(bp->pdev), sizeof(info->bus_info));
 468         info->n_stats = BNXT_NUM_STATS * bp->cp_nr_rings;
 469         info->testinfo_len = BNXT_NUM_TESTS(bp);
 470         /* TODO CHIMP_FW: eeprom dump details */
 471         info->eedump_len = 0;
 472         /* TODO CHIMP FW: reg dump details */
 473         info->regdump_len = 0;
 474 }
 475
 476 static u32 bnxt_fw_to_ethtool_support_spds(struct bnxt_link_info *link_info)
 477 {
 478         u16 fw_speeds = link_info->support_speeds;
 479         u32 speed_mask = 0;
 480
 481         if (fw_speeds & BNXT_LINK_SPEED_MSK_100MB)
 482                 speed_mask |= SUPPORTED_100baseT_Full;
 483         if (fw_speeds & BNXT_LINK_SPEED_MSK_1GB)
 484                 speed_mask |= SUPPORTED_1000baseT_Full;
 485         if (fw_speeds & BNXT_LINK_SPEED_MSK_2_5GB)
 486                 speed_mask |= SUPPORTED_2500baseX_Full;
 487         if (fw_speeds & BNXT_LINK_SPEED_MSK_10GB)
 488                 speed_mask |= SUPPORTED_10000baseT_Full;
 489         if (fw_speeds & BNXT_LINK_SPEED_MSK_40GB)
 490                 speed_mask |= SUPPORTED_40000baseCR4_Full;
 491
 492         return speed_mask;
 493 }
 494
 495 static u32 bnxt_fw_to_ethtool_advertised_spds(struct bnxt_link_info *link_info)
 496 {
 497         u16 fw_speeds = link_info->auto_link_speeds;
 498         u32 speed_mask = 0;
 499
 500         /* TODO: support 25GB, 40GB, 50GB with different cable type */
 501         /* set the advertised speeds */
 502         if (fw_speeds & BNXT_LINK_SPEED_MSK_100MB)
 503                 speed_mask |= ADVERTISED_100baseT_Full;
 504         if (fw_speeds & BNXT_LINK_SPEED_MSK_1GB)
 505                 speed_mask |= ADVERTISED_1000baseT_Full;
 506         if (fw_speeds & BNXT_LINK_SPEED_MSK_2_5GB)
 507                 speed_mask |= ADVERTISED_2500baseX_Full;
 508         if (fw_speeds & BNXT_LINK_SPEED_MSK_10GB)
 509                 speed_mask |= ADVERTISED_10000baseT_Full;
 510         if (fw_speeds & BNXT_LINK_SPEED_MSK_40GB)
 511                 speed_mask |= ADVERTISED_40000baseCR4_Full;
 512         return speed_mask;
 513 }
 514
 515 u32 bnxt_fw_to_ethtool_speed(u16 fw_link_speed)
 516 {
 517         switch (fw_link_speed) {
 518         case BNXT_LINK_SPEED_100MB:
 519                 return SPEED_100;
 520         case BNXT_LINK_SPEED_1GB:
 521                 return SPEED_1000;
 522         case BNXT_LINK_SPEED_2_5GB:
 523                 return SPEED_2500;
 524         case BNXT_LINK_SPEED_10GB:
 525                 return SPEED_10000;
 526         case BNXT_LINK_SPEED_20GB:
 527                 return SPEED_20000;
 528         case BNXT_LINK_SPEED_25GB:
 529                 return SPEED_25000;
 530         case BNXT_LINK_SPEED_40GB:
 531                 return SPEED_40000;
 532         case BNXT_LINK_SPEED_50GB:
 533                 return SPEED_50000;
 534         default:
 535                 return SPEED_UNKNOWN;
 536         }
 537 }
 538
 539 static int bnxt_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
 540 {
 541         struct bnxt *bp = netdev_priv(dev);
 542         struct bnxt_link_info *link_info = &bp->link_info;
 543         u16 ethtool_speed;
 544
 545         cmd->supported = bnxt_fw_to_ethtool_support_spds(link_info);
 546         cmd->supported |= SUPPORTED_Pause | SUPPORTED_Asym_Pause;
 547
 548         if (link_info->auto_link_speeds)
 549                 cmd->supported |= SUPPORTED_Autoneg;
 550
 551         if (link_info->autoneg) {
 552                 cmd->advertising =
 553                         bnxt_fw_to_ethtool_advertised_spds(link_info);
 554                 cmd->advertising |= ADVERTISED_Autoneg;
 555                 cmd->autoneg = AUTONEG_ENABLE;
 556         } else {
 557                 cmd->autoneg = AUTONEG_DISABLE;
 558                 cmd->advertising = 0;
 559         }
 560         if (link_info->autoneg & BNXT_AUTONEG_FLOW_CTRL) {
 561                 if ((link_info->auto_pause_setting & BNXT_LINK_PAUSE_BOTH) ==
 562                     BNXT_LINK_PAUSE_BOTH) {
 563                         cmd->advertising |= ADVERTISED_Pause;
 564                 } else {
 565                         cmd->advertising |= ADVERTISED_Asym_Pause;
 566                         if (link_info->auto_pause_setting &
 567                             BNXT_LINK_PAUSE_RX)
 568                                 cmd->advertising |= ADVERTISED_Pause;
 569                 }
 570         }
 571
 572         cmd->port = PORT_NONE;
 573         if (link_info->media_type == PORT_PHY_QCFG_RESP_MEDIA_TYPE_TP) {
 574                 cmd->port = PORT_TP;
 575                 cmd->supported |= SUPPORTED_TP;
 576                 cmd->advertising |= ADVERTISED_TP;
 577         } else {
 578                 cmd->supported |= SUPPORTED_FIBRE;
 579                 cmd->advertising |= ADVERTISED_FIBRE;
 580
 581                 if (link_info->media_type == PORT_PHY_QCFG_RESP_MEDIA_TYPE_DAC)
 582                         cmd->port = PORT_DA;
 583                 else if (link_info->media_type ==
 584                          PORT_PHY_QCFG_RESP_MEDIA_TYPE_FIBRE)
 585                         cmd->port = PORT_FIBRE;
 586         }
 587
 588         if (link_info->phy_link_status == BNXT_LINK_LINK) {
 589                 if (link_info->duplex & BNXT_LINK_DUPLEX_FULL)
 590                         cmd->duplex = DUPLEX_FULL;
 591         } else {
 592                 cmd->duplex = DUPLEX_UNKNOWN;
 593         }
 594         ethtool_speed = bnxt_fw_to_ethtool_speed(link_info->link_speed);
 595         ethtool_cmd_speed_set(cmd, ethtool_speed);
 596         if (link_info->transceiver ==
 597                 PORT_PHY_QCFG_RESP_TRANSCEIVER_TYPE_XCVR_INTERNAL)
 598                 cmd->transceiver = XCVR_INTERNAL;
 599         else
 600                 cmd->transceiver = XCVR_EXTERNAL;
 601         cmd->phy_address = link_info->phy_addr;
 602
 603         return 0;
 604 }
 605
 606 static u32 bnxt_get_fw_speed(struct net_device *dev, u16 ethtool_speed)
 607 {
 608         switch (ethtool_speed) {
 609         case SPEED_100:
 610                 return PORT_PHY_CFG_REQ_AUTO_LINK_SPEED_100MB;
 611         case SPEED_1000:
 612                 return PORT_PHY_CFG_REQ_AUTO_LINK_SPEED_1GB;
 613         case SPEED_2500:
 614                 return PORT_PHY_CFG_REQ_AUTO_LINK_SPEED_2_5GB;
 615         case SPEED_10000:
 616                 return PORT_PHY_CFG_REQ_AUTO_LINK_SPEED_10GB;
 617         case SPEED_20000:
 618                 return PORT_PHY_CFG_REQ_AUTO_LINK_SPEED_20GB;
 619         case SPEED_25000:
 620                 return PORT_PHY_CFG_REQ_AUTO_LINK_SPEED_25GB;
 621         case SPEED_40000:
 622                 return PORT_PHY_CFG_REQ_AUTO_LINK_SPEED_40GB;
 623         case SPEED_50000:
 624                 return PORT_PHY_CFG_REQ_AUTO_LINK_SPEED_50GB;
 625         default:
 626                 netdev_err(dev, "unsupported speed!\n");
 627                 break;
 628         }
 629         return 0;
 630 }
 631
 632 static u16 bnxt_get_fw_auto_link_speeds(u32 advertising)
 633 {
 634         u16 fw_speed_mask = 0;
 635
 636         /* only support autoneg at speed 100, 1000, and 10000 */
 637         if (advertising & (ADVERTISED_100baseT_Full |
 638                            ADVERTISED_100baseT_Half)) {
 639                 fw_speed_mask |= BNXT_LINK_SPEED_MSK_100MB;
 640         }
 641         if (advertising & (ADVERTISED_1000baseT_Full |
 642                            ADVERTISED_1000baseT_Half)) {
 643                 fw_speed_mask |= BNXT_LINK_SPEED_MSK_1GB;
 644         }
 645         if (advertising & ADVERTISED_10000baseT_Full)
 646                 fw_speed_mask |= BNXT_LINK_SPEED_MSK_10GB;
 647
 648         if (advertising & ADVERTISED_40000baseCR4_Full)
 649                 fw_speed_mask |= BNXT_LINK_SPEED_MSK_40GB;
 650
 651         return fw_speed_mask;
 652 }
 653
 654 static int bnxt_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
 655 {
 656         int rc = 0;
 657         struct bnxt *bp = netdev_priv(dev);
 658         struct bnxt_link_info *link_info = &bp->link_info;
 659         u32 speed, fw_advertising = 0;
 660         bool set_pause = false;
 661
 662         if (BNXT_VF(bp))
 663                 return rc;
 664
 665         if (cmd->autoneg == AUTONEG_ENABLE) {
 666                 if (link_info->media_type != PORT_PHY_QCFG_RESP_MEDIA_TYPE_TP) {
 667                         netdev_err(dev, "Media type doesn't support autoneg\n");
 668                         rc = -EINVAL;
 669                         goto set_setting_exit;
 670                 }
 671                 if (cmd->advertising & ~(BNXT_ALL_COPPER_ETHTOOL_SPEED |
 672                                          ADVERTISED_Autoneg |
 673                                          ADVERTISED_TP |
 674                                          ADVERTISED_Pause |
 675                                          ADVERTISED_Asym_Pause)) {
 676                         netdev_err(dev, "Unsupported advertising mask (adv: 0x%x)\n",
 677                                    cmd->advertising);
 678                         rc = -EINVAL;
 679                         goto set_setting_exit;
 680                 }
 681                 fw_advertising = bnxt_get_fw_auto_link_speeds(cmd->advertising);
 682                 if (fw_advertising & ~link_info->support_speeds) {
 683                         netdev_err(dev, "Advertising parameters are not supported! (adv: 0x%x)\n",
 684                                    cmd->advertising);
 685                         rc = -EINVAL;
 686                         goto set_setting_exit;
 687                 }
 688                 link_info->autoneg |= BNXT_AUTONEG_SPEED;
 689                 if (!fw_advertising)
 690                         link_info->advertising = link_info->support_speeds;
 691                 else
 692                         link_info->advertising = fw_advertising;
 693                 /* any change to autoneg will cause link change, therefore the
 694                  * driver should put back the original pause setting in autoneg
 695                  */
 696                 set_pause = true;
 697         } else {
 698                 /* TODO: currently don't support half duplex */
 699                 if (cmd->duplex == DUPLEX_HALF) {
 700                         netdev_err(dev, "HALF DUPLEX is not supported!\n");
 701                         rc = -EINVAL;
 702                         goto set_setting_exit;
 703                 }
 704                 /* If received a request for an unknown duplex, assume full*/
 705                 if (cmd->duplex == DUPLEX_UNKNOWN)
 706                         cmd->duplex = DUPLEX_FULL;
 707                 speed = ethtool_cmd_speed(cmd);
 708                 link_info->req_link_speed = bnxt_get_fw_speed(dev, speed);
 709                 link_info->req_duplex = BNXT_LINK_DUPLEX_FULL;
 710                 link_info->autoneg = 0;
 711                 link_info->advertising = 0;
 712         }
 713
 714         if (netif_running(dev))
 715                 rc = bnxt_hwrm_set_link_setting(bp, set_pause);
 716
 717 set_setting_exit:
 718         return rc;
 719 }
 720
 721 static void bnxt_get_pauseparam(struct net_device *dev,
 722                                 struct ethtool_pauseparam *epause)
 723 {
 724         struct bnxt *bp = netdev_priv(dev);
 725         struct bnxt_link_info *link_info = &bp->link_info;
 726
 727         if (BNXT_VF(bp))
 728                 return;
 729         epause->autoneg = !!(link_info->autoneg & BNXT_AUTONEG_FLOW_CTRL);
 730         epause->rx_pause = ((link_info->pause & BNXT_LINK_PAUSE_RX) != 0);
 731         epause->tx_pause = ((link_info->pause & BNXT_LINK_PAUSE_TX) != 0);
 732 }
 733
 734 static int bnxt_set_pauseparam(struct net_device *dev,
 735                                struct ethtool_pauseparam *epause)
 736 {
 737         int rc = 0;
 738         struct bnxt *bp = netdev_priv(dev);
 739         struct bnxt_link_info *link_info = &bp->link_info;
 740
 741         if (BNXT_VF(bp))
 742                 return rc;
 743
 744         if (epause->autoneg) {
 745                 if (!(link_info->autoneg & BNXT_AUTONEG_SPEED))
 746                         return -EINVAL;
 747
 748                 link_info->autoneg |= BNXT_AUTONEG_FLOW_CTRL;
 749                 link_info->req_flow_ctrl |= BNXT_LINK_PAUSE_BOTH;
 750         } else {
 751                 /* when transition from auto pause to force pause,
 752                  * force a link change
 753                  */
 754                 if (link_info->autoneg & BNXT_AUTONEG_FLOW_CTRL)
 755                         link_info->force_link_chng = true;
 756                 link_info->autoneg &= ~BNXT_AUTONEG_FLOW_CTRL;
 757                 link_info->req_flow_ctrl &= ~BNXT_LINK_PAUSE_BOTH;
 758         }
 759         if (epause->rx_pause)
 760                 link_info->req_flow_ctrl |= BNXT_LINK_PAUSE_RX;
 761         else
 762                 link_info->req_flow_ctrl &= ~BNXT_LINK_PAUSE_RX;
 763
 764         if (epause->tx_pause)
 765                 link_info->req_flow_ctrl |= BNXT_LINK_PAUSE_TX;
 766         else
 767                 link_info->req_flow_ctrl &= ~BNXT_LINK_PAUSE_TX;
 768
 769         if (netif_running(dev))
 770                 rc = bnxt_hwrm_set_pause(bp);
 771         return rc;
 772 }
 773
 774 static u32 bnxt_get_link(struct net_device *dev)
 775 {
 776         struct bnxt *bp = netdev_priv(dev);
 777
 778         /* TODO: handle MF, VF, driver close case */
 779         return bp->link_info.link_up;
 780 }
 781
 782 static int bnxt_flash_nvram(struct net_device *dev,
 783                             u16 dir_type,
 784                             u16 dir_ordinal,
 785                             u16 dir_ext,
 786                             u16 dir_attr,
 787                             const u8 *data,
 788                             size_t data_len)
 789 {
 790         struct bnxt *bp = netdev_priv(dev);
 791         int rc;
 792         struct hwrm_nvm_write_input req = {0};
 793         dma_addr_t dma_handle;
 794         u8 *kmem;
 795
 796         bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_NVM_WRITE, -1, -1);
 797
 798         req.dir_type = cpu_to_le16(dir_type);
 799         req.dir_ordinal = cpu_to_le16(dir_ordinal);
 800         req.dir_ext = cpu_to_le16(dir_ext);
 801         req.dir_attr = cpu_to_le16(dir_attr);
 802         req.dir_data_length = cpu_to_le32(data_len);
 803
 804         kmem = dma_alloc_coherent(&bp->pdev->dev, data_len, &dma_handle,
 805                                   GFP_KERNEL);
 806         if (!kmem) {
 807                 netdev_err(dev, "dma_alloc_coherent failure, length = %u\n",
 808                            (unsigned)data_len);
 809                 return -ENOMEM;
 810         }
 811         memcpy(kmem, data, data_len);
 812         req.host_src_addr = cpu_to_le64(dma_handle);
 813
 814         rc = hwrm_send_message(bp, &req, sizeof(req), FLASH_NVRAM_TIMEOUT);
 815         dma_free_coherent(&bp->pdev->dev, data_len, kmem, dma_handle);
 816
 817         return rc;
 818 }
 819
 820 static int bnxt_firmware_reset(struct net_device *dev,
 821                                u16 dir_type)
 822 {
 823         struct bnxt *bp = netdev_priv(dev);
 824         struct hwrm_fw_reset_input req = {0};
 825
 826         bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FW_RESET, -1, -1);
 827
 828         /* TODO: Support ASAP ChiMP self-reset (e.g. upon PF driver unload) */
 829         /* TODO: Address self-reset of APE/KONG/BONO/TANG or ungraceful reset */
 830         /*       (e.g. when firmware isn't already running) */
 831         switch (dir_type) {
 832         case BNX_DIR_TYPE_CHIMP_PATCH:
 833         case BNX_DIR_TYPE_BOOTCODE:
 834         case BNX_DIR_TYPE_BOOTCODE_2:
 835                 req.embedded_proc_type = FW_RESET_REQ_EMBEDDED_PROC_TYPE_BOOT;
 836                 /* Self-reset ChiMP upon next PCIe reset: */
 837                 req.selfrst_status = FW_RESET_REQ_SELFRST_STATUS_SELFRSTPCIERST;
 838                 break;
 839         case BNX_DIR_TYPE_APE_FW:
 840         case BNX_DIR_TYPE_APE_PATCH:
 841                 req.embedded_proc_type = FW_RESET_REQ_EMBEDDED_PROC_TYPE_MGMT;
 842                 break;
 843         case BNX_DIR_TYPE_KONG_FW:
 844         case BNX_DIR_TYPE_KONG_PATCH:
 845                 req.embedded_proc_type =
 846                         FW_RESET_REQ_EMBEDDED_PROC_TYPE_NETCTRL;
 847                 break;
 848         case BNX_DIR_TYPE_BONO_FW:
 849         case BNX_DIR_TYPE_BONO_PATCH:
 850                 req.embedded_proc_type = FW_RESET_REQ_EMBEDDED_PROC_TYPE_ROCE;
 851                 break;
 852         default:
 853                 return -EINVAL;
 854         }
 855
 856         return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
 857 }
 858
 859 static int bnxt_flash_firmware(struct net_device *dev,
 860                                u16 dir_type,
 861                                const u8 *fw_data,
 862                                size_t fw_size)
 863 {
 864         int     rc = 0;
 865         u16     code_type;
 866         u32     stored_crc;
 867         u32     calculated_crc;
 868         struct bnxt_fw_header *header = (struct bnxt_fw_header *)fw_data;
 869
 870         switch (dir_type) {
 871         case BNX_DIR_TYPE_BOOTCODE:
 872         case BNX_DIR_TYPE_BOOTCODE_2:
 873                 code_type = CODE_BOOT;
 874                 break;
 875         case BNX_DIR_TYPE_APE_FW:
 876                 code_type = CODE_MCTP_PASSTHRU;
 877                 break;
 878         default:
 879                 netdev_err(dev, "Unsupported directory entry type: %u\n",
 880                            dir_type);
 881                 return -EINVAL;
 882         }
 883         if (fw_size < sizeof(struct bnxt_fw_header)) {
 884                 netdev_err(dev, "Invalid firmware file size: %u\n",
 885                            (unsigned int)fw_size);
 886                 return -EINVAL;
 887         }
 888         if (header->signature != cpu_to_le32(BNXT_FIRMWARE_BIN_SIGNATURE)) {
 889                 netdev_err(dev, "Invalid firmware signature: %08X\n",
 890                            le32_to_cpu(header->signature));
 891                 return -EINVAL;
 892         }
 893         if (header->code_type != code_type) {
 894                 netdev_err(dev, "Expected firmware type: %d, read: %d\n",
 895                            code_type, header->code_type);
 896                 return -EINVAL;
 897         }
 898         if (header->device != DEVICE_CUMULUS_FAMILY) {
 899                 netdev_err(dev, "Expected firmware device family %d, read: %d\n",
 900                            DEVICE_CUMULUS_FAMILY, header->device);
 901                 return -EINVAL;
 902         }
 903         /* Confirm the CRC32 checksum of the file: */
 904         stored_crc = le32_to_cpu(*(__le32 *)(fw_data + fw_size -
 905                                              sizeof(stored_crc)));
 906         calculated_crc = ~crc32(~0, fw_data, fw_size - sizeof(stored_crc));
 907         if (calculated_crc != stored_crc) {
 908                 netdev_err(dev, "Firmware file CRC32 checksum (%08lX) does not match calculated checksum (%08lX)\n",
 909                            (unsigned long)stored_crc,
 910                            (unsigned long)calculated_crc);
 911                 return -EINVAL;
 912         }
 913         /* TODO: Validate digital signature (RSA-encrypted SHA-256 hash) here */
 914         rc = bnxt_flash_nvram(dev, dir_type, BNX_DIR_ORDINAL_FIRST,
 915                               0, 0, fw_data, fw_size);
 916         if (rc == 0)    /* Firmware update successful */
 917                 rc = bnxt_firmware_reset(dev, dir_type);
 918
 919         return rc;
 920 }
 921
 922 static bool bnxt_dir_type_is_ape_bin_format(u16 dir_type)
 923 {
 924         switch (dir_type) {
 925         case BNX_DIR_TYPE_CHIMP_PATCH:
 926         case BNX_DIR_TYPE_BOOTCODE:
 927         case BNX_DIR_TYPE_BOOTCODE_2:
 928         case BNX_DIR_TYPE_APE_FW:
 929         case BNX_DIR_TYPE_APE_PATCH:
 930         case BNX_DIR_TYPE_KONG_FW:
 931         case BNX_DIR_TYPE_KONG_PATCH:
 932                 return true;
 933         }
 934
 935         return false;
 936 }
 937
 938 static bool bnxt_dir_type_is_unprotected_exec_format(u16 dir_type)
 939 {
 940         switch (dir_type) {
 941         case BNX_DIR_TYPE_AVS:
 942         case BNX_DIR_TYPE_EXP_ROM_MBA:
 943         case BNX_DIR_TYPE_PCIE:
 944         case BNX_DIR_TYPE_TSCF_UCODE:
 945         case BNX_DIR_TYPE_EXT_PHY:
 946         case BNX_DIR_TYPE_CCM:
 947         case BNX_DIR_TYPE_ISCSI_BOOT:
 948         case BNX_DIR_TYPE_ISCSI_BOOT_IPV6:
 949         case BNX_DIR_TYPE_ISCSI_BOOT_IPV4N6:
 950                 return true;
 951         }
 952
 953         return false;
 954 }
 955
 956 static bool bnxt_dir_type_is_executable(u16 dir_type)
 957 {
 958         return bnxt_dir_type_is_ape_bin_format(dir_type) ||
 959                 bnxt_dir_type_is_unprotected_exec_format(dir_type);
 960 }
 961
 962 static int bnxt_flash_firmware_from_file(struct net_device *dev,
 963                                          u16 dir_type,
 964                                          const char *filename)
 965 {
 966         const struct firmware  *fw;
 967         int                     rc;
 968
 969         if (bnxt_dir_type_is_executable(dir_type) == false)
 970                 return -EINVAL;
 971
 972         rc = request_firmware(&fw, filename, &dev->dev);
 973         if (rc != 0) {
 974                 netdev_err(dev, "Error %d requesting firmware file: %s\n",
 975                            rc, filename);
 976                 return rc;
 977         }
 978         if (bnxt_dir_type_is_ape_bin_format(dir_type) == true)
 979                 rc = bnxt_flash_firmware(dev, dir_type, fw->data, fw->size);
 980         else
 981                 rc = bnxt_flash_nvram(dev, dir_type, BNX_DIR_ORDINAL_FIRST,
 982                                       0, 0, fw->data, fw->size);
 983         release_firmware(fw);
 984         return rc;
 985 }
 986
 987 static int bnxt_flash_package_from_file(struct net_device *dev,
 988                                         char *filename)
 989 {
 990         netdev_err(dev, "packages are not yet supported\n");
 991         return -EINVAL;
 992 }
 993
 994 static int bnxt_flash_device(struct net_device *dev,
 995                              struct ethtool_flash *flash)
 996 {
 997         if (!BNXT_PF((struct bnxt *)netdev_priv(dev))) {
 998                 netdev_err(dev, "flashdev not supported from a virtual function\n");
 999                 return -EINVAL;
1000         }
1001
1002         if (flash->region == ETHTOOL_FLASH_ALL_REGIONS)
1003                 return bnxt_flash_package_from_file(dev, flash->data);
1004
1005         return bnxt_flash_firmware_from_file(dev, flash->region, flash->data);
1006 }
1007
1008 static int nvm_get_dir_info(struct net_device *dev, u32 *entries, u32 *length)
1009 {
1010         struct bnxt *bp = netdev_priv(dev);
1011         int rc;
1012         struct hwrm_nvm_get_dir_info_input req = {0};
1013         struct hwrm_nvm_get_dir_info_output *output = bp->hwrm_cmd_resp_addr;
1014
1015         bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_NVM_GET_DIR_INFO, -1, -1);
1016
1017         mutex_lock(&bp->hwrm_cmd_lock);
1018         rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
1019         if (!rc) {
1020                 *entries = le32_to_cpu(output->entries);
1021                 *length = le32_to_cpu(output->entry_length);
1022         }
1023         mutex_unlock(&bp->hwrm_cmd_lock);
1024         return rc;
1025 }
1026
1027 static int bnxt_get_eeprom_len(struct net_device *dev)
1028 {
1029         /* The -1 return value allows the entire 32-bit range of offsets to be
1030          * passed via the ethtool command-line utility.
1031          */
1032         return -1;
1033 }
1034
1035 static int bnxt_get_nvram_directory(struct net_device *dev, u32 len, u8 *data)
1036 {
1037         struct bnxt *bp = netdev_priv(dev);
1038         int rc;
1039         u32 dir_entries;
1040         u32 entry_length;
1041         u8 *buf;
1042         size_t buflen;
1043         dma_addr_t dma_handle;
1044         struct hwrm_nvm_get_dir_entries_input req = {0};
1045
1046         rc = nvm_get_dir_info(dev, &dir_entries, &entry_length);
1047         if (rc != 0)
1048                 return rc;
1049
1050         /* Insert 2 bytes of directory info (count and size of entries) */
1051         if (len < 2)
1052                 return -EINVAL;
1053
1054         *data++ = dir_entries;
1055         *data++ = entry_length;
1056         len -= 2;
1057         memset(data, 0xff, len);
1058
1059         buflen = dir_entries * entry_length;
1060         buf = dma_alloc_coherent(&bp->pdev->dev, buflen, &dma_handle,
1061                                  GFP_KERNEL);
1062         if (!buf) {
1063                 netdev_err(dev, "dma_alloc_coherent failure, length = %u\n",
1064                            (unsigned)buflen);
1065                 return -ENOMEM;
1066         }
1067         bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_NVM_GET_DIR_ENTRIES, -1, -1);
1068         req.host_dest_addr = cpu_to_le64(dma_handle);
1069         rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
1070         if (rc == 0)
1071                 memcpy(data, buf, len > buflen ? buflen : len);
1072         dma_free_coherent(&bp->pdev->dev, buflen, buf, dma_handle);
1073         return rc;
1074 }
1075
1076 static int bnxt_get_nvram_item(struct net_device *dev, u32 index, u32 offset,
1077                                u32 length, u8 *data)
1078 {
1079         struct bnxt *bp = netdev_priv(dev);
1080         int rc;
1081         u8 *buf;
1082         dma_addr_t dma_handle;
1083         struct hwrm_nvm_read_input req = {0};
1084
1085         buf = dma_alloc_coherent(&bp->pdev->dev, length, &dma_handle,
1086                                  GFP_KERNEL);
1087         if (!buf) {
1088                 netdev_err(dev, "dma_alloc_coherent failure, length = %u\n",
1089                            (unsigned)length);
1090                 return -ENOMEM;
1091         }
1092         bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_NVM_READ, -1, -1);
1093         req.host_dest_addr = cpu_to_le64(dma_handle);
1094         req.dir_idx = cpu_to_le16(index);
1095         req.offset = cpu_to_le32(offset);
1096         req.len = cpu_to_le32(length);
1097
1098         rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
1099         if (rc == 0)
1100                 memcpy(data, buf, length);
1101         dma_free_coherent(&bp->pdev->dev, length, buf, dma_handle);
1102         return rc;
1103 }
1104
1105 static int bnxt_get_eeprom(struct net_device *dev,
1106                            struct ethtool_eeprom *eeprom,
1107                            u8 *data)
1108 {
1109         u32 index;
1110         u32 offset;
1111
1112         if (eeprom->offset == 0) /* special offset value to get directory */
1113                 return bnxt_get_nvram_directory(dev, eeprom->len, data);
1114
1115         index = eeprom->offset >> 24;
1116         offset = eeprom->offset & 0xffffff;
1117
1118         if (index == 0) {
1119                 netdev_err(dev, "unsupported index value: %d\n", index);
1120                 return -EINVAL;
1121         }
1122
1123         return bnxt_get_nvram_item(dev, index - 1, offset, eeprom->len, data);
1124 }
1125
1126 static int bnxt_erase_nvram_directory(struct net_device *dev, u8 index)
1127 {
1128         struct bnxt *bp = netdev_priv(dev);
1129         struct hwrm_nvm_erase_dir_entry_input req = {0};
1130
1131         bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_NVM_ERASE_DIR_ENTRY, -1, -1);
1132         req.dir_idx = cpu_to_le16(index);
1133         return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
1134 }
1135
1136 static int bnxt_set_eeprom(struct net_device *dev,
1137                            struct ethtool_eeprom *eeprom,
1138                            u8 *data)
1139 {
1140         struct bnxt *bp = netdev_priv(dev);
1141         u8 index, dir_op;
1142         u16 type, ext, ordinal, attr;
1143
1144         if (!BNXT_PF(bp)) {
1145                 netdev_err(dev, "NVM write not supported from a virtual function\n");
1146                 return -EINVAL;
1147         }
1148
1149         type = eeprom->magic >> 16;
1150
1151         if (type == 0xffff) { /* special value for directory operations */
1152                 index = eeprom->magic & 0xff;
1153                 dir_op = eeprom->magic >> 8;
1154                 if (index == 0)
1155                         return -EINVAL;
1156                 switch (dir_op) {
1157                 case 0x0e: /* erase */
1158                         if (eeprom->offset != ~eeprom->magic)
1159                                 return -EINVAL;
1160                         return bnxt_erase_nvram_directory(dev, index - 1);
1161                 default:
1162                         return -EINVAL;
1163                 }
1164         }
1165
1166         /* Create or re-write an NVM item: */
1167         if (bnxt_dir_type_is_executable(type) == true)
1168                 return -EINVAL;
1169         ext = eeprom->magic & 0xffff;
1170         ordinal = eeprom->offset >> 16;
1171         attr = eeprom->offset & 0xffff;
1172
1173         return bnxt_flash_nvram(dev, type, ordinal, ext, attr, data,
1174                                 eeprom->len);
1175 }
1176
1177 const struct ethtool_ops bnxt_ethtool_ops = {
1178         .get_settings           = bnxt_get_settings,
1179         .set_settings           = bnxt_set_settings,
1180         .get_pauseparam         = bnxt_get_pauseparam,
1181         .set_pauseparam         = bnxt_set_pauseparam,
1182         .get_drvinfo            = bnxt_get_drvinfo,
1183         .get_coalesce           = bnxt_get_coalesce,
1184         .set_coalesce           = bnxt_set_coalesce,
1185         .get_msglevel           = bnxt_get_msglevel,
1186         .set_msglevel           = bnxt_set_msglevel,
1187         .get_sset_count         = bnxt_get_sset_count,
1188         .get_strings            = bnxt_get_strings,
1189         .get_ethtool_stats      = bnxt_get_ethtool_stats,
1190         .set_ringparam          = bnxt_set_ringparam,
1191         .get_ringparam          = bnxt_get_ringparam,
1192         .get_channels           = bnxt_get_channels,
1193         .set_channels           = bnxt_set_channels,
1194 #ifdef CONFIG_RFS_ACCEL
1195         .get_rxnfc              = bnxt_get_rxnfc,
1196 #endif
1197         .get_rxfh_indir_size    = bnxt_get_rxfh_indir_size,
1198         .get_rxfh_key_size      = bnxt_get_rxfh_key_size,
1199         .get_rxfh               = bnxt_get_rxfh,
1200         .flash_device           = bnxt_flash_device,
1201         .get_eeprom_len         = bnxt_get_eeprom_len,
1202         .get_eeprom             = bnxt_get_eeprom,
1203         .set_eeprom             = bnxt_set_eeprom,
1204         .get_link               = bnxt_get_link,
1205 };