drivers/net/ethernet/intel/fm10k/fm10k_ethtool.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /* Copyright(c) 2013 - 2018 Intel Corporation. */
   3
   4 #include <linux/vmalloc.h>
   5
   6 #include "fm10k.h"
   7
   8 struct fm10k_stats {
   9         char stat_string[ETH_GSTRING_LEN];
  10         int sizeof_stat;
  11         int stat_offset;
  12 };
  13
  14 #define FM10K_NETDEV_STAT(_net_stat) { \
  15         .stat_string = #_net_stat, \
  16         .sizeof_stat = FIELD_SIZEOF(struct net_device_stats, _net_stat), \
  17         .stat_offset = offsetof(struct net_device_stats, _net_stat) \
  18 }
  19
  20 static const struct fm10k_stats fm10k_gstrings_net_stats[] = {
  21         FM10K_NETDEV_STAT(tx_packets),
  22         FM10K_NETDEV_STAT(tx_bytes),
  23         FM10K_NETDEV_STAT(tx_errors),
  24         FM10K_NETDEV_STAT(rx_packets),
  25         FM10K_NETDEV_STAT(rx_bytes),
  26         FM10K_NETDEV_STAT(rx_errors),
  27         FM10K_NETDEV_STAT(rx_dropped),
  28
  29         /* detailed Rx errors */
  30         FM10K_NETDEV_STAT(rx_length_errors),
  31         FM10K_NETDEV_STAT(rx_crc_errors),
  32         FM10K_NETDEV_STAT(rx_fifo_errors),
  33 };
  34
  35 #define FM10K_NETDEV_STATS_LEN  ARRAY_SIZE(fm10k_gstrings_net_stats)
  36
  37 #define FM10K_STAT(_name, _stat) { \
  38         .stat_string = _name, \
  39         .sizeof_stat = FIELD_SIZEOF(struct fm10k_intfc, _stat), \
  40         .stat_offset = offsetof(struct fm10k_intfc, _stat) \
  41 }
  42
  43 static const struct fm10k_stats fm10k_gstrings_global_stats[] = {
  44         FM10K_STAT("tx_restart_queue", restart_queue),
  45         FM10K_STAT("tx_busy", tx_busy),
  46         FM10K_STAT("tx_csum_errors", tx_csum_errors),
  47         FM10K_STAT("rx_alloc_failed", alloc_failed),
  48         FM10K_STAT("rx_csum_errors", rx_csum_errors),
  49
  50         FM10K_STAT("tx_packets_nic", tx_packets_nic),
  51         FM10K_STAT("tx_bytes_nic", tx_bytes_nic),
  52         FM10K_STAT("rx_packets_nic", rx_packets_nic),
  53         FM10K_STAT("rx_bytes_nic", rx_bytes_nic),
  54         FM10K_STAT("rx_drops_nic", rx_drops_nic),
  55         FM10K_STAT("rx_overrun_pf", rx_overrun_pf),
  56         FM10K_STAT("rx_overrun_vf", rx_overrun_vf),
  57
  58         FM10K_STAT("swapi_status", hw.swapi.status),
  59         FM10K_STAT("mac_rules_used", hw.swapi.mac.used),
  60         FM10K_STAT("mac_rules_avail", hw.swapi.mac.avail),
  61
  62         FM10K_STAT("reset_while_pending", hw.mac.reset_while_pending),
  63
  64         FM10K_STAT("tx_hang_count", tx_timeout_count),
  65 };
  66
  67 static const struct fm10k_stats fm10k_gstrings_pf_stats[] = {
  68         FM10K_STAT("timeout", stats.timeout.count),
  69         FM10K_STAT("ur", stats.ur.count),
  70         FM10K_STAT("ca", stats.ca.count),
  71         FM10K_STAT("um", stats.um.count),
  72         FM10K_STAT("xec", stats.xec.count),
  73         FM10K_STAT("vlan_drop", stats.vlan_drop.count),
  74         FM10K_STAT("loopback_drop", stats.loopback_drop.count),
  75         FM10K_STAT("nodesc_drop", stats.nodesc_drop.count),
  76 };
  77
  78 #define FM10K_MBX_STAT(_name, _stat) { \
  79         .stat_string = _name, \
  80         .sizeof_stat = FIELD_SIZEOF(struct fm10k_mbx_info, _stat), \
  81         .stat_offset = offsetof(struct fm10k_mbx_info, _stat) \
  82 }
  83
  84 static const struct fm10k_stats fm10k_gstrings_mbx_stats[] = {
  85         FM10K_MBX_STAT("mbx_tx_busy", tx_busy),
  86         FM10K_MBX_STAT("mbx_tx_dropped", tx_dropped),
  87         FM10K_MBX_STAT("mbx_tx_messages", tx_messages),
  88         FM10K_MBX_STAT("mbx_tx_dwords", tx_dwords),
  89         FM10K_MBX_STAT("mbx_tx_mbmem_pulled", tx_mbmem_pulled),
  90         FM10K_MBX_STAT("mbx_rx_messages", rx_messages),
  91         FM10K_MBX_STAT("mbx_rx_dwords", rx_dwords),
  92         FM10K_MBX_STAT("mbx_rx_parse_err", rx_parse_err),
  93         FM10K_MBX_STAT("mbx_rx_mbmem_pushed", rx_mbmem_pushed),
  94 };
  95
  96 #define FM10K_QUEUE_STAT(_name, _stat) { \
  97         .stat_string = _name, \
  98         .sizeof_stat = FIELD_SIZEOF(struct fm10k_ring, _stat), \
  99         .stat_offset = offsetof(struct fm10k_ring, _stat) \
 100 }
 101
 102 static const struct fm10k_stats fm10k_gstrings_queue_stats[] = {
 103         FM10K_QUEUE_STAT("packets", stats.packets),
 104         FM10K_QUEUE_STAT("bytes", stats.bytes),
 105 };
 106
 107 #define FM10K_GLOBAL_STATS_LEN ARRAY_SIZE(fm10k_gstrings_global_stats)
 108 #define FM10K_PF_STATS_LEN ARRAY_SIZE(fm10k_gstrings_pf_stats)
 109 #define FM10K_MBX_STATS_LEN ARRAY_SIZE(fm10k_gstrings_mbx_stats)
 110 #define FM10K_QUEUE_STATS_LEN ARRAY_SIZE(fm10k_gstrings_queue_stats)
 111
 112 #define FM10K_STATIC_STATS_LEN (FM10K_GLOBAL_STATS_LEN + \
 113                                 FM10K_NETDEV_STATS_LEN + \
 114                                 FM10K_MBX_STATS_LEN)
 115
 116 static const char fm10k_gstrings_test[][ETH_GSTRING_LEN] = {
 117         "Mailbox test (on/offline)"
 118 };
 119
 120 #define FM10K_TEST_LEN (sizeof(fm10k_gstrings_test) / ETH_GSTRING_LEN)
 121
 122 enum fm10k_self_test_types {
 123         FM10K_TEST_MBX,
 124         FM10K_TEST_MAX = FM10K_TEST_LEN
 125 };
 126
 127 enum {
 128         FM10K_PRV_FLAG_LEN,
 129 };
 130
 131 static const char fm10k_prv_flags[FM10K_PRV_FLAG_LEN][ETH_GSTRING_LEN] = {
 132 };
 133
 134 static void fm10k_add_stat_strings(u8 **p, const char *prefix,
 135                                    const struct fm10k_stats stats[],
 136                                    const unsigned int size)
 137 {
 138         unsigned int i;
 139
 140         for (i = 0; i < size; i++) {
 141                 snprintf(*p, ETH_GSTRING_LEN, "%s%s",
 142                          prefix, stats[i].stat_string);
 143                 *p += ETH_GSTRING_LEN;
 144         }
 145 }
 146
 147 static void fm10k_get_stat_strings(struct net_device *dev, u8 *data)
 148 {
 149         struct fm10k_intfc *interface = netdev_priv(dev);
 150         unsigned int i;
 151
 152         fm10k_add_stat_strings(&data, "", fm10k_gstrings_net_stats,
 153                                FM10K_NETDEV_STATS_LEN);
 154
 155         fm10k_add_stat_strings(&data, "", fm10k_gstrings_global_stats,
 156                                FM10K_GLOBAL_STATS_LEN);
 157
 158         fm10k_add_stat_strings(&data, "", fm10k_gstrings_mbx_stats,
 159                                FM10K_MBX_STATS_LEN);
 160
 161         if (interface->hw.mac.type != fm10k_mac_vf)
 162                 fm10k_add_stat_strings(&data, "", fm10k_gstrings_pf_stats,
 163                                        FM10K_PF_STATS_LEN);
 164
 165         for (i = 0; i < interface->hw.mac.max_queues; i++) {
 166                 char prefix[ETH_GSTRING_LEN];
 167
 168                 snprintf(prefix, ETH_GSTRING_LEN, "tx_queue_%u_", i);
 169                 fm10k_add_stat_strings(&data, prefix,
 170                                        fm10k_gstrings_queue_stats,
 171                                        FM10K_QUEUE_STATS_LEN);
 172
 173                 snprintf(prefix, ETH_GSTRING_LEN, "rx_queue_%u_", i);
 174                 fm10k_add_stat_strings(&data, prefix,
 175                                        fm10k_gstrings_queue_stats,
 176                                        FM10K_QUEUE_STATS_LEN);
 177         }
 178 }
 179
 180 static void fm10k_get_strings(struct net_device *dev,
 181                               u32 stringset, u8 *data)
 182 {
 183         switch (stringset) {
 184         case ETH_SS_TEST:
 185                 memcpy(data, fm10k_gstrings_test,
 186                        FM10K_TEST_LEN * ETH_GSTRING_LEN);
 187                 break;
 188         case ETH_SS_STATS:
 189                 fm10k_get_stat_strings(dev, data);
 190                 break;
 191         case ETH_SS_PRIV_FLAGS:
 192                 memcpy(data, fm10k_prv_flags,
 193                        FM10K_PRV_FLAG_LEN * ETH_GSTRING_LEN);
 194                 break;
 195         }
 196 }
 197
 198 static int fm10k_get_sset_count(struct net_device *dev, int sset)
 199 {
 200         struct fm10k_intfc *interface = netdev_priv(dev);
 201         struct fm10k_hw *hw = &interface->hw;
 202         int stats_len = FM10K_STATIC_STATS_LEN;
 203
 204         switch (sset) {
 205         case ETH_SS_TEST:
 206                 return FM10K_TEST_LEN;
 207         case ETH_SS_STATS:
 208                 stats_len += hw->mac.max_queues * 2 * FM10K_QUEUE_STATS_LEN;
 209
 210                 if (hw->mac.type != fm10k_mac_vf)
 211                         stats_len += FM10K_PF_STATS_LEN;
 212
 213                 return stats_len;
 214         case ETH_SS_PRIV_FLAGS:
 215                 return FM10K_PRV_FLAG_LEN;
 216         default:
 217                 return -EOPNOTSUPP;
 218         }
 219 }
 220
 221 static void fm10k_add_ethtool_stats(u64 **data, void *pointer,
 222                                     const struct fm10k_stats stats[],
 223                                     const unsigned int size)
 224 {
 225         unsigned int i;
 226         char *p;
 227
 228         if (!pointer) {
 229                 /* memory is not zero allocated so we have to clear it */
 230                 for (i = 0; i < size; i++)
 231                         *((*data)++) = 0;
 232                 return;
 233         }
 234
 235         for (i = 0; i < size; i++) {
 236                 p = (char *)pointer + stats[i].stat_offset;
 237
 238                 switch (stats[i].sizeof_stat) {
 239                 case sizeof(u64):
 240                         *((*data)++) = *(u64 *)p;
 241                         break;
 242                 case sizeof(u32):
 243                         *((*data)++) = *(u32 *)p;
 244                         break;
 245                 case sizeof(u16):
 246                         *((*data)++) = *(u16 *)p;
 247                         break;
 248                 case sizeof(u8):
 249                         *((*data)++) = *(u8 *)p;
 250                         break;
 251                 default:
 252                         *((*data)++) = 0;
 253                 }
 254         }
 255 }
 256
 257 static void fm10k_get_ethtool_stats(struct net_device *netdev,
 258                                     struct ethtool_stats __always_unused *stats,
 259                                     u64 *data)
 260 {
 261         struct fm10k_intfc *interface = netdev_priv(netdev);
 262         struct net_device_stats *net_stats = &netdev->stats;
 263         int i;
 264
 265         fm10k_update_stats(interface);
 266
 267         fm10k_add_ethtool_stats(&data, net_stats, fm10k_gstrings_net_stats,
 268                                 FM10K_NETDEV_STATS_LEN);
 269
 270         fm10k_add_ethtool_stats(&data, interface, fm10k_gstrings_global_stats,
 271                                 FM10K_GLOBAL_STATS_LEN);
 272
 273         fm10k_add_ethtool_stats(&data, &interface->hw.mbx,
 274                                 fm10k_gstrings_mbx_stats,
 275                                 FM10K_MBX_STATS_LEN);
 276
 277         if (interface->hw.mac.type != fm10k_mac_vf) {
 278                 fm10k_add_ethtool_stats(&data, interface,
 279                                         fm10k_gstrings_pf_stats,
 280                                         FM10K_PF_STATS_LEN);
 281         }
 282
 283         for (i = 0; i < interface->hw.mac.max_queues; i++) {
 284                 struct fm10k_ring *ring;
 285
 286                 ring = interface->tx_ring[i];
 287                 fm10k_add_ethtool_stats(&data, ring,
 288                                         fm10k_gstrings_queue_stats,
 289                                         FM10K_QUEUE_STATS_LEN);
 290
 291                 ring = interface->rx_ring[i];
 292                 fm10k_add_ethtool_stats(&data, ring,
 293                                         fm10k_gstrings_queue_stats,
 294                                         FM10K_QUEUE_STATS_LEN);
 295         }
 296 }
 297
 298 /* If function below adds more registers this define needs to be updated */
 299 #define FM10K_REGS_LEN_Q 29
 300
 301 static void fm10k_get_reg_q(struct fm10k_hw *hw, u32 *buff, int i)
 302 {
 303         int idx = 0;
 304
 305         buff[idx++] = fm10k_read_reg(hw, FM10K_RDBAL(i));
 306         buff[idx++] = fm10k_read_reg(hw, FM10K_RDBAH(i));
 307         buff[idx++] = fm10k_read_reg(hw, FM10K_RDLEN(i));
 308         buff[idx++] = fm10k_read_reg(hw, FM10K_TPH_RXCTRL(i));
 309         buff[idx++] = fm10k_read_reg(hw, FM10K_RDH(i));
 310         buff[idx++] = fm10k_read_reg(hw, FM10K_RDT(i));
 311         buff[idx++] = fm10k_read_reg(hw, FM10K_RXQCTL(i));
 312         buff[idx++] = fm10k_read_reg(hw, FM10K_RXDCTL(i));
 313         buff[idx++] = fm10k_read_reg(hw, FM10K_RXINT(i));
 314         buff[idx++] = fm10k_read_reg(hw, FM10K_SRRCTL(i));
 315         buff[idx++] = fm10k_read_reg(hw, FM10K_QPRC(i));
 316         buff[idx++] = fm10k_read_reg(hw, FM10K_QPRDC(i));
 317         buff[idx++] = fm10k_read_reg(hw, FM10K_QBRC_L(i));
 318         buff[idx++] = fm10k_read_reg(hw, FM10K_QBRC_H(i));
 319         buff[idx++] = fm10k_read_reg(hw, FM10K_TDBAL(i));
 320         buff[idx++] = fm10k_read_reg(hw, FM10K_TDBAH(i));
 321         buff[idx++] = fm10k_read_reg(hw, FM10K_TDLEN(i));
 322         buff[idx++] = fm10k_read_reg(hw, FM10K_TPH_TXCTRL(i));
 323         buff[idx++] = fm10k_read_reg(hw, FM10K_TDH(i));
 324         buff[idx++] = fm10k_read_reg(hw, FM10K_TDT(i));
 325         buff[idx++] = fm10k_read_reg(hw, FM10K_TXDCTL(i));
 326         buff[idx++] = fm10k_read_reg(hw, FM10K_TXQCTL(i));
 327         buff[idx++] = fm10k_read_reg(hw, FM10K_TXINT(i));
 328         buff[idx++] = fm10k_read_reg(hw, FM10K_QPTC(i));
 329         buff[idx++] = fm10k_read_reg(hw, FM10K_QBTC_L(i));
 330         buff[idx++] = fm10k_read_reg(hw, FM10K_QBTC_H(i));
 331         buff[idx++] = fm10k_read_reg(hw, FM10K_TQDLOC(i));
 332         buff[idx++] = fm10k_read_reg(hw, FM10K_TX_SGLORT(i));
 333         buff[idx++] = fm10k_read_reg(hw, FM10K_PFVTCTL(i));
 334
 335         BUG_ON(idx != FM10K_REGS_LEN_Q);
 336 }
 337
 338 /* If function above adds more registers this define needs to be updated */
 339 #define FM10K_REGS_LEN_VSI 43
 340
 341 static void fm10k_get_reg_vsi(struct fm10k_hw *hw, u32 *buff, int i)
 342 {
 343         int idx = 0, j;
 344
 345         buff[idx++] = fm10k_read_reg(hw, FM10K_MRQC(i));
 346         for (j = 0; j < 10; j++)
 347                 buff[idx++] = fm10k_read_reg(hw, FM10K_RSSRK(i, j));
 348         for (j = 0; j < 32; j++)
 349                 buff[idx++] = fm10k_read_reg(hw, FM10K_RETA(i, j));
 350
 351         BUG_ON(idx != FM10K_REGS_LEN_VSI);
 352 }
 353
 354 static void fm10k_get_regs(struct net_device *netdev,
 355                            struct ethtool_regs *regs, void *p)
 356 {
 357         struct fm10k_intfc *interface = netdev_priv(netdev);
 358         struct fm10k_hw *hw = &interface->hw;
 359         u32 *buff = p;
 360         u16 i;
 361
 362         regs->version = BIT(24) | (hw->revision_id << 16) | hw->device_id;
 363
 364         switch (hw->mac.type) {
 365         case fm10k_mac_pf:
 366                 /* General PF Registers */
 367                 *(buff++) = fm10k_read_reg(hw, FM10K_CTRL);
 368                 *(buff++) = fm10k_read_reg(hw, FM10K_CTRL_EXT);
 369                 *(buff++) = fm10k_read_reg(hw, FM10K_GCR);
 370                 *(buff++) = fm10k_read_reg(hw, FM10K_GCR_EXT);
 371
 372                 for (i = 0; i < 8; i++) {
 373                         *(buff++) = fm10k_read_reg(hw, FM10K_DGLORTMAP(i));
 374                         *(buff++) = fm10k_read_reg(hw, FM10K_DGLORTDEC(i));
 375                 }
 376
 377                 for (i = 0; i < 65; i++) {
 378                         fm10k_get_reg_vsi(hw, buff, i);
 379                         buff += FM10K_REGS_LEN_VSI;
 380                 }
 381
 382                 *(buff++) = fm10k_read_reg(hw, FM10K_DMA_CTRL);
 383                 *(buff++) = fm10k_read_reg(hw, FM10K_DMA_CTRL2);
 384
 385                 for (i = 0; i < FM10K_MAX_QUEUES_PF; i++) {
 386                         fm10k_get_reg_q(hw, buff, i);
 387                         buff += FM10K_REGS_LEN_Q;
 388                 }
 389
 390                 *(buff++) = fm10k_read_reg(hw, FM10K_TPH_CTRL);
 391
 392                 for (i = 0; i < 8; i++)
 393                         *(buff++) = fm10k_read_reg(hw, FM10K_INT_MAP(i));
 394
 395                 /* Interrupt Throttling Registers */
 396                 for (i = 0; i < 130; i++)
 397                         *(buff++) = fm10k_read_reg(hw, FM10K_ITR(i));
 398
 399                 break;
 400         case fm10k_mac_vf:
 401                 /* General VF registers */
 402                 *(buff++) = fm10k_read_reg(hw, FM10K_VFCTRL);
 403                 *(buff++) = fm10k_read_reg(hw, FM10K_VFINT_MAP);
 404                 *(buff++) = fm10k_read_reg(hw, FM10K_VFSYSTIME);
 405
 406                 /* Interrupt Throttling Registers */
 407                 for (i = 0; i < 8; i++)
 408                         *(buff++) = fm10k_read_reg(hw, FM10K_VFITR(i));
 409
 410                 fm10k_get_reg_vsi(hw, buff, 0);
 411                 buff += FM10K_REGS_LEN_VSI;
 412
 413                 for (i = 0; i < FM10K_MAX_QUEUES_POOL; i++) {
 414                         if (i < hw->mac.max_queues)
 415                                 fm10k_get_reg_q(hw, buff, i);
 416                         else
 417                                 memset(buff, 0, sizeof(u32) * FM10K_REGS_LEN_Q);
 418                         buff += FM10K_REGS_LEN_Q;
 419                 }
 420
 421                 break;
 422         default:
 423                 return;
 424         }
 425 }
 426
 427 /* If function above adds more registers these define need to be updated */
 428 #define FM10K_REGS_LEN_PF \
 429 (162 + (65 * FM10K_REGS_LEN_VSI) + (FM10K_MAX_QUEUES_PF * FM10K_REGS_LEN_Q))
 430 #define FM10K_REGS_LEN_VF \
 431 (11 + FM10K_REGS_LEN_VSI + (FM10K_MAX_QUEUES_POOL * FM10K_REGS_LEN_Q))
 432
 433 static int fm10k_get_regs_len(struct net_device *netdev)
 434 {
 435         struct fm10k_intfc *interface = netdev_priv(netdev);
 436         struct fm10k_hw *hw = &interface->hw;
 437
 438         switch (hw->mac.type) {
 439         case fm10k_mac_pf:
 440                 return FM10K_REGS_LEN_PF * sizeof(u32);
 441         case fm10k_mac_vf:
 442                 return FM10K_REGS_LEN_VF * sizeof(u32);
 443         default:
 444                 return 0;
 445         }
 446 }
 447
 448 static void fm10k_get_drvinfo(struct net_device *dev,
 449                               struct ethtool_drvinfo *info)
 450 {
 451         struct fm10k_intfc *interface = netdev_priv(dev);
 452
 453         strncpy(info->driver, fm10k_driver_name,
 454                 sizeof(info->driver) - 1);
 455         strncpy(info->version, fm10k_driver_version,
 456                 sizeof(info->version) - 1);
 457         strncpy(info->bus_info, pci_name(interface->pdev),
 458                 sizeof(info->bus_info) - 1);
 459 }
 460
 461 static void fm10k_get_pauseparam(struct net_device *dev,
 462                                  struct ethtool_pauseparam *pause)
 463 {
 464         struct fm10k_intfc *interface = netdev_priv(dev);
 465
 466         /* record fixed values for autoneg and tx pause */
 467         pause->autoneg = 0;
 468         pause->tx_pause = 1;
 469
 470         pause->rx_pause = interface->rx_pause ? 1 : 0;
 471 }
 472
 473 static int fm10k_set_pauseparam(struct net_device *dev,
 474                                 struct ethtool_pauseparam *pause)
 475 {
 476         struct fm10k_intfc *interface = netdev_priv(dev);
 477         struct fm10k_hw *hw = &interface->hw;
 478
 479         if (pause->autoneg || !pause->tx_pause)
 480                 return -EINVAL;
 481
 482         /* we can only support pause on the PF to avoid head-of-line blocking */
 483         if (hw->mac.type == fm10k_mac_pf)
 484                 interface->rx_pause = pause->rx_pause ? ~0 : 0;
 485         else if (pause->rx_pause)
 486                 return -EINVAL;
 487
 488         if (netif_running(dev))
 489                 fm10k_update_rx_drop_en(interface);
 490
 491         return 0;
 492 }
 493
 494 static u32 fm10k_get_msglevel(struct net_device *netdev)
 495 {
 496         struct fm10k_intfc *interface = netdev_priv(netdev);
 497
 498         return interface->msg_enable;
 499 }
 500
 501 static void fm10k_set_msglevel(struct net_device *netdev, u32 data)
 502 {
 503         struct fm10k_intfc *interface = netdev_priv(netdev);
 504
 505         interface->msg_enable = data;
 506 }
 507
 508 static void fm10k_get_ringparam(struct net_device *netdev,
 509                                 struct ethtool_ringparam *ring)
 510 {
 511         struct fm10k_intfc *interface = netdev_priv(netdev);
 512
 513         ring->rx_max_pending = FM10K_MAX_RXD;
 514         ring->tx_max_pending = FM10K_MAX_TXD;
 515         ring->rx_mini_max_pending = 0;
 516         ring->rx_jumbo_max_pending = 0;
 517         ring->rx_pending = interface->rx_ring_count;
 518         ring->tx_pending = interface->tx_ring_count;
 519         ring->rx_mini_pending = 0;
 520         ring->rx_jumbo_pending = 0;
 521 }
 522
 523 static int fm10k_set_ringparam(struct net_device *netdev,
 524                                struct ethtool_ringparam *ring)
 525 {
 526         struct fm10k_intfc *interface = netdev_priv(netdev);
 527         struct fm10k_ring *temp_ring;
 528         int i, err = 0;
 529         u32 new_rx_count, new_tx_count;
 530
 531         if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
 532                 return -EINVAL;
 533
 534         new_tx_count = clamp_t(u32, ring->tx_pending,
 535                                FM10K_MIN_TXD, FM10K_MAX_TXD);
 536         new_tx_count = ALIGN(new_tx_count, FM10K_REQ_TX_DESCRIPTOR_MULTIPLE);
 537
 538         new_rx_count = clamp_t(u32, ring->rx_pending,
 539                                FM10K_MIN_RXD, FM10K_MAX_RXD);
 540         new_rx_count = ALIGN(new_rx_count, FM10K_REQ_RX_DESCRIPTOR_MULTIPLE);
 541
 542         if ((new_tx_count == interface->tx_ring_count) &&
 543             (new_rx_count == interface->rx_ring_count)) {
 544                 /* nothing to do */
 545                 return 0;
 546         }
 547
 548         while (test_and_set_bit(__FM10K_RESETTING, interface->state))
 549                 usleep_range(1000, 2000);
 550
 551         if (!netif_running(interface->netdev)) {
 552                 for (i = 0; i < interface->num_tx_queues; i++)
 553                         interface->tx_ring[i]->count = new_tx_count;
 554                 for (i = 0; i < interface->num_rx_queues; i++)
 555                         interface->rx_ring[i]->count = new_rx_count;
 556                 interface->tx_ring_count = new_tx_count;
 557                 interface->rx_ring_count = new_rx_count;
 558                 goto clear_reset;
 559         }
 560
 561         /* allocate temporary buffer to store rings in */
 562         i = max_t(int, interface->num_tx_queues, interface->num_rx_queues);
 563         temp_ring = vmalloc(i * sizeof(struct fm10k_ring));
 564
 565         if (!temp_ring) {
 566                 err = -ENOMEM;
 567                 goto clear_reset;
 568         }
 569
 570         fm10k_down(interface);
 571
 572         /* Setup new Tx resources and free the old Tx resources in that order.
 573          * We can then assign the new resources to the rings via a memcpy.
 574          * The advantage to this approach is that we are guaranteed to still
 575          * have resources even in the case of an allocation failure.
 576          */
 577         if (new_tx_count != interface->tx_ring_count) {
 578                 for (i = 0; i < interface->num_tx_queues; i++) {
 579                         memcpy(&temp_ring[i], interface->tx_ring[i],
 580                                sizeof(struct fm10k_ring));
 581
 582                         temp_ring[i].count = new_tx_count;
 583                         err = fm10k_setup_tx_resources(&temp_ring[i]);
 584                         if (err) {
 585                                 while (i) {
 586                                         i--;
 587                                         fm10k_free_tx_resources(&temp_ring[i]);
 588                                 }
 589                                 goto err_setup;
 590                         }
 591                 }
 592
 593                 for (i = 0; i < interface->num_tx_queues; i++) {
 594                         fm10k_free_tx_resources(interface->tx_ring[i]);
 595
 596                         memcpy(interface->tx_ring[i], &temp_ring[i],
 597                                sizeof(struct fm10k_ring));
 598                 }
 599
 600                 interface->tx_ring_count = new_tx_count;
 601         }
 602
 603         /* Repeat the process for the Rx rings if needed */
 604         if (new_rx_count != interface->rx_ring_count) {
 605                 for (i = 0; i < interface->num_rx_queues; i++) {
 606                         memcpy(&temp_ring[i], interface->rx_ring[i],
 607                                sizeof(struct fm10k_ring));
 608
 609                         temp_ring[i].count = new_rx_count;
 610                         err = fm10k_setup_rx_resources(&temp_ring[i]);
 611                         if (err) {
 612                                 while (i) {
 613                                         i--;
 614                                         fm10k_free_rx_resources(&temp_ring[i]);
 615                                 }
 616                                 goto err_setup;
 617                         }
 618                 }
 619
 620                 for (i = 0; i < interface->num_rx_queues; i++) {
 621                         fm10k_free_rx_resources(interface->rx_ring[i]);
 622
 623                         memcpy(interface->rx_ring[i], &temp_ring[i],
 624                                sizeof(struct fm10k_ring));
 625                 }
 626
 627                 interface->rx_ring_count = new_rx_count;
 628         }
 629
 630 err_setup:
 631         fm10k_up(interface);
 632         vfree(temp_ring);
 633 clear_reset:
 634         clear_bit(__FM10K_RESETTING, interface->state);
 635         return err;
 636 }
 637
 638 static int fm10k_get_coalesce(struct net_device *dev,
 639                               struct ethtool_coalesce *ec)
 640 {
 641         struct fm10k_intfc *interface = netdev_priv(dev);
 642
 643         ec->use_adaptive_tx_coalesce = ITR_IS_ADAPTIVE(interface->tx_itr);
 644         ec->tx_coalesce_usecs = interface->tx_itr & ~FM10K_ITR_ADAPTIVE;
 645
 646         ec->use_adaptive_rx_coalesce = ITR_IS_ADAPTIVE(interface->rx_itr);
 647         ec->rx_coalesce_usecs = interface->rx_itr & ~FM10K_ITR_ADAPTIVE;
 648
 649         return 0;
 650 }
 651
 652 static int fm10k_set_coalesce(struct net_device *dev,
 653                               struct ethtool_coalesce *ec)
 654 {
 655         struct fm10k_intfc *interface = netdev_priv(dev);
 656         struct fm10k_q_vector *qv;
 657         u16 tx_itr, rx_itr;
 658         int i;
 659
 660         /* verify limits */
 661         if ((ec->rx_coalesce_usecs > FM10K_ITR_MAX) ||
 662             (ec->tx_coalesce_usecs > FM10K_ITR_MAX))
 663                 return -EINVAL;
 664
 665         /* record settings */
 666         tx_itr = ec->tx_coalesce_usecs;
 667         rx_itr = ec->rx_coalesce_usecs;
 668
 669         /* set initial values for adaptive ITR */
 670         if (ec->use_adaptive_tx_coalesce)
 671                 tx_itr = FM10K_ITR_ADAPTIVE | FM10K_TX_ITR_DEFAULT;
 672
 673         if (ec->use_adaptive_rx_coalesce)
 674                 rx_itr = FM10K_ITR_ADAPTIVE | FM10K_RX_ITR_DEFAULT;
 675
 676         /* update interface */
 677         interface->tx_itr = tx_itr;
 678         interface->rx_itr = rx_itr;
 679
 680         /* update q_vectors */
 681         for (i = 0; i < interface->num_q_vectors; i++) {
 682                 qv = interface->q_vector[i];
 683                 qv->tx.itr = tx_itr;
 684                 qv->rx.itr = rx_itr;
 685         }
 686
 687         return 0;
 688 }
 689
 690 static int fm10k_get_rss_hash_opts(struct fm10k_intfc *interface,
 691                                    struct ethtool_rxnfc *cmd)
 692 {
 693         cmd->data = 0;
 694
 695         /* Report default options for RSS on fm10k */
 696         switch (cmd->flow_type) {
 697         case TCP_V4_FLOW:
 698         case TCP_V6_FLOW:
 699                 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
 700                 /* fall through */
 701         case UDP_V4_FLOW:
 702                 if (test_bit(FM10K_FLAG_RSS_FIELD_IPV4_UDP,
 703                              interface->flags))
 704                         cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
 705                 /* fall through */
 706         case SCTP_V4_FLOW:
 707         case SCTP_V6_FLOW:
 708         case AH_ESP_V4_FLOW:
 709         case AH_ESP_V6_FLOW:
 710         case AH_V4_FLOW:
 711         case AH_V6_FLOW:
 712         case ESP_V4_FLOW:
 713         case ESP_V6_FLOW:
 714         case IPV4_FLOW:
 715         case IPV6_FLOW:
 716                 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
 717                 break;
 718         case UDP_V6_FLOW:
 719                 if (test_bit(FM10K_FLAG_RSS_FIELD_IPV6_UDP,
 720                              interface->flags))
 721                         cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
 722                 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
 723                 break;
 724         default:
 725                 return -EINVAL;
 726         }
 727
 728         return 0;
 729 }
 730
 731 static int fm10k_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd,
 732                            u32 __always_unused *rule_locs)
 733 {
 734         struct fm10k_intfc *interface = netdev_priv(dev);
 735         int ret = -EOPNOTSUPP;
 736
 737         switch (cmd->cmd) {
 738         case ETHTOOL_GRXRINGS:
 739                 cmd->data = interface->num_rx_queues;
 740                 ret = 0;
 741                 break;
 742         case ETHTOOL_GRXFH:
 743                 ret = fm10k_get_rss_hash_opts(interface, cmd);
 744                 break;
 745         default:
 746                 break;
 747         }
 748
 749         return ret;
 750 }
 751
 752 static int fm10k_set_rss_hash_opt(struct fm10k_intfc *interface,
 753                                   struct ethtool_rxnfc *nfc)
 754 {
 755         int rss_ipv4_udp = test_bit(FM10K_FLAG_RSS_FIELD_IPV4_UDP,
 756                                     interface->flags);
 757         int rss_ipv6_udp = test_bit(FM10K_FLAG_RSS_FIELD_IPV6_UDP,
 758                                     interface->flags);
 759
 760         /* RSS does not support anything other than hashing
 761          * to queues on src and dst IPs and ports
 762          */
 763         if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST |
 764                           RXH_L4_B_0_1 | RXH_L4_B_2_3))
 765                 return -EINVAL;
 766
 767         switch (nfc->flow_type) {
 768         case TCP_V4_FLOW:
 769         case TCP_V6_FLOW:
 770                 if (!(nfc->data & RXH_IP_SRC) ||
 771                     !(nfc->data & RXH_IP_DST) ||
 772                     !(nfc->data & RXH_L4_B_0_1) ||
 773                     !(nfc->data & RXH_L4_B_2_3))
 774                         return -EINVAL;
 775                 break;
 776         case UDP_V4_FLOW:
 777                 if (!(nfc->data & RXH_IP_SRC) ||
 778                     !(nfc->data & RXH_IP_DST))
 779                         return -EINVAL;
 780                 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
 781                 case 0:
 782                         clear_bit(FM10K_FLAG_RSS_FIELD_IPV4_UDP,
 783                                   interface->flags);
 784                         break;
 785                 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
 786                         set_bit(FM10K_FLAG_RSS_FIELD_IPV4_UDP,
 787                                 interface->flags);
 788                         break;
 789                 default:
 790                         return -EINVAL;
 791                 }
 792                 break;
 793         case UDP_V6_FLOW:
 794                 if (!(nfc->data & RXH_IP_SRC) ||
 795                     !(nfc->data & RXH_IP_DST))
 796                         return -EINVAL;
 797                 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
 798                 case 0:
 799                         clear_bit(FM10K_FLAG_RSS_FIELD_IPV6_UDP,
 800                                   interface->flags);
 801                         break;
 802                 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
 803                         set_bit(FM10K_FLAG_RSS_FIELD_IPV6_UDP,
 804                                 interface->flags);
 805                         break;
 806                 default:
 807                         return -EINVAL;
 808                 }
 809                 break;
 810         case AH_ESP_V4_FLOW:
 811         case AH_V4_FLOW:
 812         case ESP_V4_FLOW:
 813         case SCTP_V4_FLOW:
 814         case AH_ESP_V6_FLOW:
 815         case AH_V6_FLOW:
 816         case ESP_V6_FLOW:
 817         case SCTP_V6_FLOW:
 818                 if (!(nfc->data & RXH_IP_SRC) ||
 819                     !(nfc->data & RXH_IP_DST) ||
 820                     (nfc->data & RXH_L4_B_0_1) ||
 821                     (nfc->data & RXH_L4_B_2_3))
 822                         return -EINVAL;
 823                 break;
 824         default:
 825                 return -EINVAL;
 826         }
 827
 828         /* If something changed we need to update the MRQC register. Note that
 829          * test_bit() is guaranteed to return strictly 0 or 1, so testing for
 830          * equality is safe.
 831          */
 832         if ((rss_ipv4_udp != test_bit(FM10K_FLAG_RSS_FIELD_IPV4_UDP,
 833                                       interface->flags)) ||
 834             (rss_ipv6_udp != test_bit(FM10K_FLAG_RSS_FIELD_IPV6_UDP,
 835                                       interface->flags))) {
 836                 struct fm10k_hw *hw = &interface->hw;
 837                 bool warn = false;
 838                 u32 mrqc;
 839
 840                 /* Perform hash on these packet types */
 841                 mrqc = FM10K_MRQC_IPV4 |
 842                        FM10K_MRQC_TCP_IPV4 |
 843                        FM10K_MRQC_IPV6 |
 844                        FM10K_MRQC_TCP_IPV6;
 845
 846                 if (test_bit(FM10K_FLAG_RSS_FIELD_IPV4_UDP,
 847                              interface->flags)) {
 848                         mrqc |= FM10K_MRQC_UDP_IPV4;
 849                         warn = true;
 850                 }
 851                 if (test_bit(FM10K_FLAG_RSS_FIELD_IPV6_UDP,
 852                              interface->flags)) {
 853                         mrqc |= FM10K_MRQC_UDP_IPV6;
 854                         warn = true;
 855                 }
 856
 857                 /* If we enable UDP RSS display a warning that this may cause
 858                  * fragmented UDP packets to arrive out of order.
 859                  */
 860                 if (warn)
 861                         netif_warn(interface, drv, interface->netdev,
 862                                    "enabling UDP RSS: fragmented packets may arrive out of order to the stack above\n");
 863
 864                 fm10k_write_reg(hw, FM10K_MRQC(0), mrqc);
 865         }
 866
 867         return 0;
 868 }
 869
 870 static int fm10k_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd)
 871 {
 872         struct fm10k_intfc *interface = netdev_priv(dev);
 873         int ret = -EOPNOTSUPP;
 874
 875         switch (cmd->cmd) {
 876         case ETHTOOL_SRXFH:
 877                 ret = fm10k_set_rss_hash_opt(interface, cmd);
 878                 break;
 879         default:
 880                 break;
 881         }
 882
 883         return ret;
 884 }
 885
 886 static int fm10k_mbx_test(struct fm10k_intfc *interface, u64 *data)
 887 {
 888         struct fm10k_hw *hw = &interface->hw;
 889         struct fm10k_mbx_info *mbx = &hw->mbx;
 890         u32 attr_flag, test_msg[6];
 891         unsigned long timeout;
 892         int err = -EINVAL;
 893
 894         /* For now this is a VF only feature */
 895         if (hw->mac.type != fm10k_mac_vf)
 896                 return 0;
 897
 898         /* loop through both nested and unnested attribute types */
 899         for (attr_flag = BIT(FM10K_TEST_MSG_UNSET);
 900              attr_flag < BIT(2 * FM10K_TEST_MSG_NESTED);
 901              attr_flag += attr_flag) {
 902                 /* generate message to be tested */
 903                 fm10k_tlv_msg_test_create(test_msg, attr_flag);
 904
 905                 fm10k_mbx_lock(interface);
 906                 mbx->test_result = FM10K_NOT_IMPLEMENTED;
 907                 err = mbx->ops.enqueue_tx(hw, mbx, test_msg);
 908                 fm10k_mbx_unlock(interface);
 909
 910                 /* wait up to 1 second for response */
 911                 timeout = jiffies + HZ;
 912                 do {
 913                         if (err < 0)
 914                                 goto err_out;
 915
 916                         usleep_range(500, 1000);
 917
 918                         fm10k_mbx_lock(interface);
 919                         mbx->ops.process(hw, mbx);
 920                         fm10k_mbx_unlock(interface);
 921
 922                         err = mbx->test_result;
 923                         if (!err)
 924                                 break;
 925                 } while (time_is_after_jiffies(timeout));
 926
 927                 /* reporting errors */
 928                 if (err)
 929                         goto err_out;
 930         }
 931
 932 err_out:
 933         *data = err < 0 ? (attr_flag) : (err > 0);
 934         return err;
 935 }
 936
 937 static void fm10k_self_test(struct net_device *dev,
 938                             struct ethtool_test *eth_test, u64 *data)
 939 {
 940         struct fm10k_intfc *interface = netdev_priv(dev);
 941         struct fm10k_hw *hw = &interface->hw;
 942
 943         memset(data, 0, sizeof(*data) * FM10K_TEST_LEN);
 944
 945         if (FM10K_REMOVED(hw->hw_addr)) {
 946                 netif_err(interface, drv, dev,
 947                           "Interface removed - test blocked\n");
 948                 eth_test->flags |= ETH_TEST_FL_FAILED;
 949                 return;
 950         }
 951
 952         if (fm10k_mbx_test(interface, &data[FM10K_TEST_MBX]))
 953                 eth_test->flags |= ETH_TEST_FL_FAILED;
 954 }
 955
 956 static u32 fm10k_get_priv_flags(struct net_device *netdev)
 957 {
 958         return 0;
 959 }
 960
 961 static int fm10k_set_priv_flags(struct net_device *netdev, u32 priv_flags)
 962 {
 963         if (priv_flags >= BIT(FM10K_PRV_FLAG_LEN))
 964                 return -EINVAL;
 965
 966         return 0;
 967 }
 968
 969 static u32 fm10k_get_reta_size(struct net_device __always_unused *netdev)
 970 {
 971         return FM10K_RETA_SIZE * FM10K_RETA_ENTRIES_PER_REG;
 972 }
 973
 974 void fm10k_write_reta(struct fm10k_intfc *interface, const u32 *indir)
 975 {
 976         u16 rss_i = interface->ring_feature[RING_F_RSS].indices;
 977         struct fm10k_hw *hw = &interface->hw;
 978         u32 table[4];
 979         int i, j;
 980
 981         /* record entries to reta table */
 982         for (i = 0; i < FM10K_RETA_SIZE; i++) {
 983                 u32 reta, n;
 984
 985                 /* generate a new table if we weren't given one */
 986                 for (j = 0; j < 4; j++) {
 987                         if (indir)
 988                                 n = indir[4 * i + j];
 989                         else
 990                                 n = ethtool_rxfh_indir_default(4 * i + j,
 991                                                                rss_i);
 992
 993                         table[j] = n;
 994                 }
 995
 996                 reta = table[0] |
 997                         (table[1] << 8) |
 998                         (table[2] << 16) |
 999                         (table[3] << 24);
1000
1001                 if (interface->reta[i] == reta)
1002                         continue;
1003
1004                 interface->reta[i] = reta;
1005                 fm10k_write_reg(hw, FM10K_RETA(0, i), reta);
1006         }
1007 }
1008
1009 static int fm10k_get_reta(struct net_device *netdev, u32 *indir)
1010 {
1011         struct fm10k_intfc *interface = netdev_priv(netdev);
1012         int i;
1013
1014         if (!indir)
1015                 return 0;
1016
1017         for (i = 0; i < FM10K_RETA_SIZE; i++, indir += 4) {
1018                 u32 reta = interface->reta[i];
1019
1020                 indir[0] = (reta << 24) >> 24;
1021                 indir[1] = (reta << 16) >> 24;
1022                 indir[2] = (reta <<  8) >> 24;
1023                 indir[3] = (reta) >> 24;
1024         }
1025
1026         return 0;
1027 }
1028
1029 static int fm10k_set_reta(struct net_device *netdev, const u32 *indir)
1030 {
1031         struct fm10k_intfc *interface = netdev_priv(netdev);
1032         int i;
1033         u16 rss_i;
1034
1035         if (!indir)
1036                 return 0;
1037
1038         /* Verify user input. */
1039         rss_i = interface->ring_feature[RING_F_RSS].indices;
1040         for (i = fm10k_get_reta_size(netdev); i--;) {
1041                 if (indir[i] < rss_i)
1042                         continue;
1043                 return -EINVAL;
1044         }
1045
1046         fm10k_write_reta(interface, indir);
1047
1048         return 0;
1049 }
1050
1051 static u32 fm10k_get_rssrk_size(struct net_device __always_unused *netdev)
1052 {
1053         return FM10K_RSSRK_SIZE * FM10K_RSSRK_ENTRIES_PER_REG;
1054 }
1055
1056 static int fm10k_get_rssh(struct net_device *netdev, u32 *indir, u8 *key,
1057                           u8 *hfunc)
1058 {
1059         struct fm10k_intfc *interface = netdev_priv(netdev);
1060         int i, err;
1061
1062         if (hfunc)
1063                 *hfunc = ETH_RSS_HASH_TOP;
1064
1065         err = fm10k_get_reta(netdev, indir);
1066         if (err || !key)
1067                 return err;
1068
1069         for (i = 0; i < FM10K_RSSRK_SIZE; i++, key += 4)
1070                 *(__le32 *)key = cpu_to_le32(interface->rssrk[i]);
1071
1072         return 0;
1073 }
1074
1075 static int fm10k_set_rssh(struct net_device *netdev, const u32 *indir,
1076                           const u8 *key, const u8 hfunc)
1077 {
1078         struct fm10k_intfc *interface = netdev_priv(netdev);
1079         struct fm10k_hw *hw = &interface->hw;
1080         int i, err;
1081
1082         /* We do not allow change in unsupported parameters */
1083         if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)
1084                 return -EOPNOTSUPP;
1085
1086         err = fm10k_set_reta(netdev, indir);
1087         if (err || !key)
1088                 return err;
1089
1090         for (i = 0; i < FM10K_RSSRK_SIZE; i++, key += 4) {
1091                 u32 rssrk = le32_to_cpu(*(__le32 *)key);
1092
1093                 if (interface->rssrk[i] == rssrk)
1094                         continue;
1095
1096                 interface->rssrk[i] = rssrk;
1097                 fm10k_write_reg(hw, FM10K_RSSRK(0, i), rssrk);
1098         }
1099
1100         return 0;
1101 }
1102
1103 static unsigned int fm10k_max_channels(struct net_device *dev)
1104 {
1105         struct fm10k_intfc *interface = netdev_priv(dev);
1106         unsigned int max_combined = interface->hw.mac.max_queues;
1107         u8 tcs = netdev_get_num_tc(dev);
1108
1109         /* For QoS report channels per traffic class */
1110         if (tcs > 1)
1111                 max_combined = BIT((fls(max_combined / tcs) - 1));
1112
1113         return max_combined;
1114 }
1115
1116 static void fm10k_get_channels(struct net_device *dev,
1117                                struct ethtool_channels *ch)
1118 {
1119         struct fm10k_intfc *interface = netdev_priv(dev);
1120         struct fm10k_hw *hw = &interface->hw;
1121
1122         /* report maximum channels */
1123         ch->max_combined = fm10k_max_channels(dev);
1124
1125         /* report info for other vector */
1126         ch->max_other = NON_Q_VECTORS(hw);
1127         ch->other_count = ch->max_other;
1128
1129         /* record RSS queues */
1130         ch->combined_count = interface->ring_feature[RING_F_RSS].indices;
1131 }
1132
1133 static int fm10k_set_channels(struct net_device *dev,
1134                               struct ethtool_channels *ch)
1135 {
1136         struct fm10k_intfc *interface = netdev_priv(dev);
1137         unsigned int count = ch->combined_count;
1138         struct fm10k_hw *hw = &interface->hw;
1139
1140         /* verify they are not requesting separate vectors */
1141         if (!count || ch->rx_count || ch->tx_count)
1142                 return -EINVAL;
1143
1144         /* verify other_count has not changed */
1145         if (ch->other_count != NON_Q_VECTORS(hw))
1146                 return -EINVAL;
1147
1148         /* verify the number of channels does not exceed hardware limits */
1149         if (count > fm10k_max_channels(dev))
1150                 return -EINVAL;
1151
1152         interface->ring_feature[RING_F_RSS].limit = count;
1153
1154         /* use setup TC to update any traffic class queue mapping */
1155         return fm10k_setup_tc(dev, netdev_get_num_tc(dev));
1156 }
1157
1158 static const struct ethtool_ops fm10k_ethtool_ops = {
1159         .get_strings            = fm10k_get_strings,
1160         .get_sset_count         = fm10k_get_sset_count,
1161         .get_ethtool_stats      = fm10k_get_ethtool_stats,
1162         .get_drvinfo            = fm10k_get_drvinfo,
1163         .get_link               = ethtool_op_get_link,
1164         .get_pauseparam         = fm10k_get_pauseparam,
1165         .set_pauseparam         = fm10k_set_pauseparam,
1166         .get_msglevel           = fm10k_get_msglevel,
1167         .set_msglevel           = fm10k_set_msglevel,
1168         .get_ringparam          = fm10k_get_ringparam,
1169         .set_ringparam          = fm10k_set_ringparam,
1170         .get_coalesce           = fm10k_get_coalesce,
1171         .set_coalesce           = fm10k_set_coalesce,
1172         .get_rxnfc              = fm10k_get_rxnfc,
1173         .set_rxnfc              = fm10k_set_rxnfc,
1174         .get_regs               = fm10k_get_regs,
1175         .get_regs_len           = fm10k_get_regs_len,
1176         .self_test              = fm10k_self_test,
1177         .get_priv_flags         = fm10k_get_priv_flags,
1178         .set_priv_flags         = fm10k_set_priv_flags,
1179         .get_rxfh_indir_size    = fm10k_get_reta_size,
1180         .get_rxfh_key_size      = fm10k_get_rssrk_size,
1181         .get_rxfh               = fm10k_get_rssh,
1182         .set_rxfh               = fm10k_set_rssh,
1183         .get_channels           = fm10k_get_channels,
1184         .set_channels           = fm10k_set_channels,
1185         .get_ts_info            = ethtool_op_get_ts_info,
1186 };
1187
1188 void fm10k_set_ethtool_ops(struct net_device *dev)
1189 {
1190         dev->ethtool_ops = &fm10k_ethtool_ops;
1191 }