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         /* The stat_string is expected to be a format string formatted using
  10          * vsnprintf by fm10k_add_stat_strings. Every member of a stats array
  11          * should use the same format specifiers as they will be formatted
  12          * using the same variadic arguments.
  13          */
  14         char stat_string[ETH_GSTRING_LEN];
  15         int sizeof_stat;
  16         int stat_offset;
  17 };
  18
  19 #define FM10K_STAT_FIELDS(_type, _name, _stat) { \
  20         .stat_string = _name, \
  21         .sizeof_stat = FIELD_SIZEOF(_type, _stat), \
  22         .stat_offset = offsetof(_type, _stat) \
  23 }
  24
  25 /* netdevice statistics */
  26 #define FM10K_NETDEV_STAT(_net_stat) \
  27         FM10K_STAT_FIELDS(struct net_device_stats, __stringify(_net_stat), \
  28                           _net_stat)
  29
  30 static const struct fm10k_stats fm10k_gstrings_net_stats[] = {
  31         FM10K_NETDEV_STAT(tx_packets),
  32         FM10K_NETDEV_STAT(tx_bytes),
  33         FM10K_NETDEV_STAT(tx_errors),
  34         FM10K_NETDEV_STAT(rx_packets),
  35         FM10K_NETDEV_STAT(rx_bytes),
  36         FM10K_NETDEV_STAT(rx_errors),
  37         FM10K_NETDEV_STAT(rx_dropped),
  38
  39         /* detailed Rx errors */
  40         FM10K_NETDEV_STAT(rx_length_errors),
  41         FM10K_NETDEV_STAT(rx_crc_errors),
  42         FM10K_NETDEV_STAT(rx_fifo_errors),
  43 };
  44
  45 #define FM10K_NETDEV_STATS_LEN  ARRAY_SIZE(fm10k_gstrings_net_stats)
  46
  47 /* General interface statistics */
  48 #define FM10K_STAT(_name, _stat) \
  49         FM10K_STAT_FIELDS(struct fm10k_intfc, _name, _stat)
  50
  51 static const struct fm10k_stats fm10k_gstrings_global_stats[] = {
  52         FM10K_STAT("tx_restart_queue", restart_queue),
  53         FM10K_STAT("tx_busy", tx_busy),
  54         FM10K_STAT("tx_csum_errors", tx_csum_errors),
  55         FM10K_STAT("rx_alloc_failed", alloc_failed),
  56         FM10K_STAT("rx_csum_errors", rx_csum_errors),
  57
  58         FM10K_STAT("tx_packets_nic", tx_packets_nic),
  59         FM10K_STAT("tx_bytes_nic", tx_bytes_nic),
  60         FM10K_STAT("rx_packets_nic", rx_packets_nic),
  61         FM10K_STAT("rx_bytes_nic", rx_bytes_nic),
  62         FM10K_STAT("rx_drops_nic", rx_drops_nic),
  63         FM10K_STAT("rx_overrun_pf", rx_overrun_pf),
  64         FM10K_STAT("rx_overrun_vf", rx_overrun_vf),
  65
  66         FM10K_STAT("swapi_status", hw.swapi.status),
  67         FM10K_STAT("mac_rules_used", hw.swapi.mac.used),
  68         FM10K_STAT("mac_rules_avail", hw.swapi.mac.avail),
  69
  70         FM10K_STAT("reset_while_pending", hw.mac.reset_while_pending),
  71
  72         FM10K_STAT("tx_hang_count", tx_timeout_count),
  73 };
  74
  75 static const struct fm10k_stats fm10k_gstrings_pf_stats[] = {
  76         FM10K_STAT("timeout", stats.timeout.count),
  77         FM10K_STAT("ur", stats.ur.count),
  78         FM10K_STAT("ca", stats.ca.count),
  79         FM10K_STAT("um", stats.um.count),
  80         FM10K_STAT("xec", stats.xec.count),
  81         FM10K_STAT("vlan_drop", stats.vlan_drop.count),
  82         FM10K_STAT("loopback_drop", stats.loopback_drop.count),
  83         FM10K_STAT("nodesc_drop", stats.nodesc_drop.count),
  84 };
  85
  86 /* mailbox statistics */
  87 #define FM10K_MBX_STAT(_name, _stat) \
  88         FM10K_STAT_FIELDS(struct fm10k_mbx_info, _name, _stat)
  89
  90 static const struct fm10k_stats fm10k_gstrings_mbx_stats[] = {
  91         FM10K_MBX_STAT("mbx_tx_busy", tx_busy),
  92         FM10K_MBX_STAT("mbx_tx_dropped", tx_dropped),
  93         FM10K_MBX_STAT("mbx_tx_messages", tx_messages),
  94         FM10K_MBX_STAT("mbx_tx_dwords", tx_dwords),
  95         FM10K_MBX_STAT("mbx_tx_mbmem_pulled", tx_mbmem_pulled),
  96         FM10K_MBX_STAT("mbx_rx_messages", rx_messages),
  97         FM10K_MBX_STAT("mbx_rx_dwords", rx_dwords),
  98         FM10K_MBX_STAT("mbx_rx_parse_err", rx_parse_err),
  99         FM10K_MBX_STAT("mbx_rx_mbmem_pushed", rx_mbmem_pushed),
 100 };
 101
 102 /* per-queue ring statistics */
 103 #define FM10K_QUEUE_STAT(_name, _stat) \
 104         FM10K_STAT_FIELDS(struct fm10k_ring, _name, _stat)
 105
 106 static const struct fm10k_stats fm10k_gstrings_queue_stats[] = {
 107         FM10K_QUEUE_STAT("%s_queue_%u_packets", stats.packets),
 108         FM10K_QUEUE_STAT("%s_queue_%u_bytes", stats.bytes),
 109 };
 110
 111 #define FM10K_GLOBAL_STATS_LEN ARRAY_SIZE(fm10k_gstrings_global_stats)
 112 #define FM10K_PF_STATS_LEN ARRAY_SIZE(fm10k_gstrings_pf_stats)
 113 #define FM10K_MBX_STATS_LEN ARRAY_SIZE(fm10k_gstrings_mbx_stats)
 114 #define FM10K_QUEUE_STATS_LEN ARRAY_SIZE(fm10k_gstrings_queue_stats)
 115
 116 #define FM10K_STATIC_STATS_LEN (FM10K_GLOBAL_STATS_LEN + \
 117                                 FM10K_NETDEV_STATS_LEN + \
 118                                 FM10K_MBX_STATS_LEN)
 119
 120 static const char fm10k_gstrings_test[][ETH_GSTRING_LEN] = {
 121         "Mailbox test (on/offline)"
 122 };
 123
 124 #define FM10K_TEST_LEN (sizeof(fm10k_gstrings_test) / ETH_GSTRING_LEN)
 125
 126 enum fm10k_self_test_types {
 127         FM10K_TEST_MBX,
 128         FM10K_TEST_MAX = FM10K_TEST_LEN
 129 };
 130
 131 enum {
 132         FM10K_PRV_FLAG_LEN,
 133 };
 134
 135 static const char fm10k_prv_flags[FM10K_PRV_FLAG_LEN][ETH_GSTRING_LEN] = {
 136 };
 137
 138 static void fm10k_add_stat_strings(u8 **p, const struct fm10k_stats stats[],
 139                                    const unsigned int size, ...)
 140 {
 141         unsigned int i;
 142
 143         for (i = 0; i < size; i++) {
 144                 va_list args;
 145
 146                 va_start(args, size);
 147                 vsnprintf(*p, ETH_GSTRING_LEN, stats[i].stat_string, args);
 148                 *p += ETH_GSTRING_LEN;
 149                 va_end(args);
 150         }
 151 }
 152
 153 static void fm10k_get_stat_strings(struct net_device *dev, u8 *data)
 154 {
 155         struct fm10k_intfc *interface = netdev_priv(dev);
 156         unsigned int i;
 157
 158         fm10k_add_stat_strings(&data, fm10k_gstrings_net_stats,
 159                                FM10K_NETDEV_STATS_LEN);
 160
 161         fm10k_add_stat_strings(&data, fm10k_gstrings_global_stats,
 162                                FM10K_GLOBAL_STATS_LEN);
 163
 164         fm10k_add_stat_strings(&data, fm10k_gstrings_mbx_stats,
 165                                FM10K_MBX_STATS_LEN);
 166
 167         if (interface->hw.mac.type != fm10k_mac_vf)
 168                 fm10k_add_stat_strings(&data, fm10k_gstrings_pf_stats,
 169                                        FM10K_PF_STATS_LEN);
 170
 171         for (i = 0; i < interface->hw.mac.max_queues; i++) {
 172                 fm10k_add_stat_strings(&data, fm10k_gstrings_queue_stats,
 173                                        FM10K_QUEUE_STATS_LEN,
 174                                        "tx", i);
 175
 176                 fm10k_add_stat_strings(&data, fm10k_gstrings_queue_stats,
 177                                        FM10K_QUEUE_STATS_LEN,
 178                                        "rx", i);
 179         }
 180 }
 181
 182 static void fm10k_get_strings(struct net_device *dev,
 183                               u32 stringset, u8 *data)
 184 {
 185         switch (stringset) {
 186         case ETH_SS_TEST:
 187                 memcpy(data, fm10k_gstrings_test,
 188                        FM10K_TEST_LEN * ETH_GSTRING_LEN);
 189                 break;
 190         case ETH_SS_STATS:
 191                 fm10k_get_stat_strings(dev, data);
 192                 break;
 193         case ETH_SS_PRIV_FLAGS:
 194                 memcpy(data, fm10k_prv_flags,
 195                        FM10K_PRV_FLAG_LEN * ETH_GSTRING_LEN);
 196                 break;
 197         }
 198 }
 199
 200 static int fm10k_get_sset_count(struct net_device *dev, int sset)
 201 {
 202         struct fm10k_intfc *interface = netdev_priv(dev);
 203         struct fm10k_hw *hw = &interface->hw;
 204         int stats_len = FM10K_STATIC_STATS_LEN;
 205
 206         switch (sset) {
 207         case ETH_SS_TEST:
 208                 return FM10K_TEST_LEN;
 209         case ETH_SS_STATS:
 210                 stats_len += hw->mac.max_queues * 2 * FM10K_QUEUE_STATS_LEN;
 211
 212                 if (hw->mac.type != fm10k_mac_vf)
 213                         stats_len += FM10K_PF_STATS_LEN;
 214
 215                 return stats_len;
 216         case ETH_SS_PRIV_FLAGS:
 217                 return FM10K_PRV_FLAG_LEN;
 218         default:
 219                 return -EOPNOTSUPP;
 220         }
 221 }
 222
 223 static void fm10k_add_ethtool_stats(u64 **data, void *pointer,
 224                                     const struct fm10k_stats stats[],
 225                                     const unsigned int size)
 226 {
 227         unsigned int i;
 228         char *p;
 229
 230         if (!pointer) {
 231                 /* memory is not zero allocated so we have to clear it */
 232                 for (i = 0; i < size; i++)
 233                         *((*data)++) = 0;
 234                 return;
 235         }
 236
 237         for (i = 0; i < size; i++) {
 238                 p = (char *)pointer + stats[i].stat_offset;
 239
 240                 switch (stats[i].sizeof_stat) {
 241                 case sizeof(u64):
 242                         *((*data)++) = *(u64 *)p;
 243                         break;
 244                 case sizeof(u32):
 245                         *((*data)++) = *(u32 *)p;
 246                         break;
 247                 case sizeof(u16):
 248                         *((*data)++) = *(u16 *)p;
 249                         break;
 250                 case sizeof(u8):
 251                         *((*data)++) = *(u8 *)p;
 252                         break;
 253                 default:
 254                         *((*data)++) = 0;
 255                 }
 256         }
 257 }
 258
 259 static void fm10k_get_ethtool_stats(struct net_device *netdev,
 260                                     struct ethtool_stats __always_unused *stats,
 261                                     u64 *data)
 262 {
 263         struct fm10k_intfc *interface = netdev_priv(netdev);
 264         struct net_device_stats *net_stats = &netdev->stats;
 265         int i;
 266
 267         fm10k_update_stats(interface);
 268
 269         fm10k_add_ethtool_stats(&data, net_stats, fm10k_gstrings_net_stats,
 270                                 FM10K_NETDEV_STATS_LEN);
 271
 272         fm10k_add_ethtool_stats(&data, interface, fm10k_gstrings_global_stats,
 273                                 FM10K_GLOBAL_STATS_LEN);
 274
 275         fm10k_add_ethtool_stats(&data, &interface->hw.mbx,
 276                                 fm10k_gstrings_mbx_stats,
 277                                 FM10K_MBX_STATS_LEN);
 278
 279         if (interface->hw.mac.type != fm10k_mac_vf) {
 280                 fm10k_add_ethtool_stats(&data, interface,
 281                                         fm10k_gstrings_pf_stats,
 282                                         FM10K_PF_STATS_LEN);
 283         }
 284
 285         for (i = 0; i < interface->hw.mac.max_queues; i++) {
 286                 struct fm10k_ring *ring;
 287
 288                 ring = interface->tx_ring[i];
 289                 fm10k_add_ethtool_stats(&data, ring,
 290                                         fm10k_gstrings_queue_stats,
 291                                         FM10K_QUEUE_STATS_LEN);
 292
 293                 ring = interface->rx_ring[i];
 294                 fm10k_add_ethtool_stats(&data, ring,
 295                                         fm10k_gstrings_queue_stats,
 296                                         FM10K_QUEUE_STATS_LEN);
 297         }
 298 }
 299
 300 /* If function below adds more registers this define needs to be updated */
 301 #define FM10K_REGS_LEN_Q 29
 302
 303 static void fm10k_get_reg_q(struct fm10k_hw *hw, u32 *buff, int i)
 304 {
 305         int idx = 0;
 306
 307         buff[idx++] = fm10k_read_reg(hw, FM10K_RDBAL(i));
 308         buff[idx++] = fm10k_read_reg(hw, FM10K_RDBAH(i));
 309         buff[idx++] = fm10k_read_reg(hw, FM10K_RDLEN(i));
 310         buff[idx++] = fm10k_read_reg(hw, FM10K_TPH_RXCTRL(i));
 311         buff[idx++] = fm10k_read_reg(hw, FM10K_RDH(i));
 312         buff[idx++] = fm10k_read_reg(hw, FM10K_RDT(i));
 313         buff[idx++] = fm10k_read_reg(hw, FM10K_RXQCTL(i));
 314         buff[idx++] = fm10k_read_reg(hw, FM10K_RXDCTL(i));
 315         buff[idx++] = fm10k_read_reg(hw, FM10K_RXINT(i));
 316         buff[idx++] = fm10k_read_reg(hw, FM10K_SRRCTL(i));
 317         buff[idx++] = fm10k_read_reg(hw, FM10K_QPRC(i));
 318         buff[idx++] = fm10k_read_reg(hw, FM10K_QPRDC(i));
 319         buff[idx++] = fm10k_read_reg(hw, FM10K_QBRC_L(i));
 320         buff[idx++] = fm10k_read_reg(hw, FM10K_QBRC_H(i));
 321         buff[idx++] = fm10k_read_reg(hw, FM10K_TDBAL(i));
 322         buff[idx++] = fm10k_read_reg(hw, FM10K_TDBAH(i));
 323         buff[idx++] = fm10k_read_reg(hw, FM10K_TDLEN(i));
 324         buff[idx++] = fm10k_read_reg(hw, FM10K_TPH_TXCTRL(i));
 325         buff[idx++] = fm10k_read_reg(hw, FM10K_TDH(i));
 326         buff[idx++] = fm10k_read_reg(hw, FM10K_TDT(i));
 327         buff[idx++] = fm10k_read_reg(hw, FM10K_TXDCTL(i));
 328         buff[idx++] = fm10k_read_reg(hw, FM10K_TXQCTL(i));
 329         buff[idx++] = fm10k_read_reg(hw, FM10K_TXINT(i));
 330         buff[idx++] = fm10k_read_reg(hw, FM10K_QPTC(i));
 331         buff[idx++] = fm10k_read_reg(hw, FM10K_QBTC_L(i));
 332         buff[idx++] = fm10k_read_reg(hw, FM10K_QBTC_H(i));
 333         buff[idx++] = fm10k_read_reg(hw, FM10K_TQDLOC(i));
 334         buff[idx++] = fm10k_read_reg(hw, FM10K_TX_SGLORT(i));
 335         buff[idx++] = fm10k_read_reg(hw, FM10K_PFVTCTL(i));
 336
 337         BUG_ON(idx != FM10K_REGS_LEN_Q);
 338 }
 339
 340 /* If function above adds more registers this define needs to be updated */
 341 #define FM10K_REGS_LEN_VSI 43
 342
 343 static void fm10k_get_reg_vsi(struct fm10k_hw *hw, u32 *buff, int i)
 344 {
 345         int idx = 0, j;
 346
 347         buff[idx++] = fm10k_read_reg(hw, FM10K_MRQC(i));
 348         for (j = 0; j < 10; j++)
 349                 buff[idx++] = fm10k_read_reg(hw, FM10K_RSSRK(i, j));
 350         for (j = 0; j < 32; j++)
 351                 buff[idx++] = fm10k_read_reg(hw, FM10K_RETA(i, j));
 352
 353         BUG_ON(idx != FM10K_REGS_LEN_VSI);
 354 }
 355
 356 static void fm10k_get_regs(struct net_device *netdev,
 357                            struct ethtool_regs *regs, void *p)
 358 {
 359         struct fm10k_intfc *interface = netdev_priv(netdev);
 360         struct fm10k_hw *hw = &interface->hw;
 361         u32 *buff = p;
 362         u16 i;
 363
 364         regs->version = BIT(24) | (hw->revision_id << 16) | hw->device_id;
 365
 366         switch (hw->mac.type) {
 367         case fm10k_mac_pf:
 368                 /* General PF Registers */
 369                 *(buff++) = fm10k_read_reg(hw, FM10K_CTRL);
 370                 *(buff++) = fm10k_read_reg(hw, FM10K_CTRL_EXT);
 371                 *(buff++) = fm10k_read_reg(hw, FM10K_GCR);
 372                 *(buff++) = fm10k_read_reg(hw, FM10K_GCR_EXT);
 373
 374                 for (i = 0; i < 8; i++) {
 375                         *(buff++) = fm10k_read_reg(hw, FM10K_DGLORTMAP(i));
 376                         *(buff++) = fm10k_read_reg(hw, FM10K_DGLORTDEC(i));
 377                 }
 378
 379                 for (i = 0; i < 65; i++) {
 380                         fm10k_get_reg_vsi(hw, buff, i);
 381                         buff += FM10K_REGS_LEN_VSI;
 382                 }
 383
 384                 *(buff++) = fm10k_read_reg(hw, FM10K_DMA_CTRL);
 385                 *(buff++) = fm10k_read_reg(hw, FM10K_DMA_CTRL2);
 386
 387                 for (i = 0; i < FM10K_MAX_QUEUES_PF; i++) {
 388                         fm10k_get_reg_q(hw, buff, i);
 389                         buff += FM10K_REGS_LEN_Q;
 390                 }
 391
 392                 *(buff++) = fm10k_read_reg(hw, FM10K_TPH_CTRL);
 393
 394                 for (i = 0; i < 8; i++)
 395                         *(buff++) = fm10k_read_reg(hw, FM10K_INT_MAP(i));
 396
 397                 /* Interrupt Throttling Registers */
 398                 for (i = 0; i < 130; i++)
 399                         *(buff++) = fm10k_read_reg(hw, FM10K_ITR(i));
 400
 401                 break;
 402         case fm10k_mac_vf:
 403                 /* General VF registers */
 404                 *(buff++) = fm10k_read_reg(hw, FM10K_VFCTRL);
 405                 *(buff++) = fm10k_read_reg(hw, FM10K_VFINT_MAP);
 406                 *(buff++) = fm10k_read_reg(hw, FM10K_VFSYSTIME);
 407
 408                 /* Interrupt Throttling Registers */
 409                 for (i = 0; i < 8; i++)
 410                         *(buff++) = fm10k_read_reg(hw, FM10K_VFITR(i));
 411
 412                 fm10k_get_reg_vsi(hw, buff, 0);
 413                 buff += FM10K_REGS_LEN_VSI;
 414
 415                 for (i = 0; i < FM10K_MAX_QUEUES_POOL; i++) {
 416                         if (i < hw->mac.max_queues)
 417                                 fm10k_get_reg_q(hw, buff, i);
 418                         else
 419                                 memset(buff, 0, sizeof(u32) * FM10K_REGS_LEN_Q);
 420                         buff += FM10K_REGS_LEN_Q;
 421                 }
 422
 423                 break;
 424         default:
 425                 return;
 426         }
 427 }
 428
 429 /* If function above adds more registers these define need to be updated */
 430 #define FM10K_REGS_LEN_PF \
 431 (162 + (65 * FM10K_REGS_LEN_VSI) + (FM10K_MAX_QUEUES_PF * FM10K_REGS_LEN_Q))
 432 #define FM10K_REGS_LEN_VF \
 433 (11 + FM10K_REGS_LEN_VSI + (FM10K_MAX_QUEUES_POOL * FM10K_REGS_LEN_Q))
 434
 435 static int fm10k_get_regs_len(struct net_device *netdev)
 436 {
 437         struct fm10k_intfc *interface = netdev_priv(netdev);
 438         struct fm10k_hw *hw = &interface->hw;
 439
 440         switch (hw->mac.type) {
 441         case fm10k_mac_pf:
 442                 return FM10K_REGS_LEN_PF * sizeof(u32);
 443         case fm10k_mac_vf:
 444                 return FM10K_REGS_LEN_VF * sizeof(u32);
 445         default:
 446                 return 0;
 447         }
 448 }
 449
 450 static void fm10k_get_drvinfo(struct net_device *dev,
 451                               struct ethtool_drvinfo *info)
 452 {
 453         struct fm10k_intfc *interface = netdev_priv(dev);
 454
 455         strncpy(info->driver, fm10k_driver_name,
 456                 sizeof(info->driver) - 1);
 457         strncpy(info->version, fm10k_driver_version,
 458                 sizeof(info->version) - 1);
 459         strncpy(info->bus_info, pci_name(interface->pdev),
 460                 sizeof(info->bus_info) - 1);
 461 }
 462
 463 static void fm10k_get_pauseparam(struct net_device *dev,
 464                                  struct ethtool_pauseparam *pause)
 465 {
 466         struct fm10k_intfc *interface = netdev_priv(dev);
 467
 468         /* record fixed values for autoneg and tx pause */
 469         pause->autoneg = 0;
 470         pause->tx_pause = 1;
 471
 472         pause->rx_pause = interface->rx_pause ? 1 : 0;
 473 }
 474
 475 static int fm10k_set_pauseparam(struct net_device *dev,
 476                                 struct ethtool_pauseparam *pause)
 477 {
 478         struct fm10k_intfc *interface = netdev_priv(dev);
 479         struct fm10k_hw *hw = &interface->hw;
 480
 481         if (pause->autoneg || !pause->tx_pause)
 482                 return -EINVAL;
 483
 484         /* we can only support pause on the PF to avoid head-of-line blocking */
 485         if (hw->mac.type == fm10k_mac_pf)
 486                 interface->rx_pause = pause->rx_pause ? ~0 : 0;
 487         else if (pause->rx_pause)
 488                 return -EINVAL;
 489
 490         if (netif_running(dev))
 491                 fm10k_update_rx_drop_en(interface);
 492
 493         return 0;
 494 }
 495
 496 static u32 fm10k_get_msglevel(struct net_device *netdev)
 497 {
 498         struct fm10k_intfc *interface = netdev_priv(netdev);
 499
 500         return interface->msg_enable;
 501 }
 502
 503 static void fm10k_set_msglevel(struct net_device *netdev, u32 data)
 504 {
 505         struct fm10k_intfc *interface = netdev_priv(netdev);
 506
 507         interface->msg_enable = data;
 508 }
 509
 510 static void fm10k_get_ringparam(struct net_device *netdev,
 511                                 struct ethtool_ringparam *ring)
 512 {
 513         struct fm10k_intfc *interface = netdev_priv(netdev);
 514
 515         ring->rx_max_pending = FM10K_MAX_RXD;
 516         ring->tx_max_pending = FM10K_MAX_TXD;
 517         ring->rx_mini_max_pending = 0;
 518         ring->rx_jumbo_max_pending = 0;
 519         ring->rx_pending = interface->rx_ring_count;
 520         ring->tx_pending = interface->tx_ring_count;
 521         ring->rx_mini_pending = 0;
 522         ring->rx_jumbo_pending = 0;
 523 }
 524
 525 static int fm10k_set_ringparam(struct net_device *netdev,
 526                                struct ethtool_ringparam *ring)
 527 {
 528         struct fm10k_intfc *interface = netdev_priv(netdev);
 529         struct fm10k_ring *temp_ring;
 530         int i, err = 0;
 531         u32 new_rx_count, new_tx_count;
 532
 533         if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
 534                 return -EINVAL;
 535
 536         new_tx_count = clamp_t(u32, ring->tx_pending,
 537                                FM10K_MIN_TXD, FM10K_MAX_TXD);
 538         new_tx_count = ALIGN(new_tx_count, FM10K_REQ_TX_DESCRIPTOR_MULTIPLE);
 539
 540         new_rx_count = clamp_t(u32, ring->rx_pending,
 541                                FM10K_MIN_RXD, FM10K_MAX_RXD);
 542         new_rx_count = ALIGN(new_rx_count, FM10K_REQ_RX_DESCRIPTOR_MULTIPLE);
 543
 544         if ((new_tx_count == interface->tx_ring_count) &&
 545             (new_rx_count == interface->rx_ring_count)) {
 546                 /* nothing to do */
 547                 return 0;
 548         }
 549
 550         while (test_and_set_bit(__FM10K_RESETTING, interface->state))
 551                 usleep_range(1000, 2000);
 552
 553         if (!netif_running(interface->netdev)) {
 554                 for (i = 0; i < interface->num_tx_queues; i++)
 555                         interface->tx_ring[i]->count = new_tx_count;
 556                 for (i = 0; i < interface->num_rx_queues; i++)
 557                         interface->rx_ring[i]->count = new_rx_count;
 558                 interface->tx_ring_count = new_tx_count;
 559                 interface->rx_ring_count = new_rx_count;
 560                 goto clear_reset;
 561         }
 562
 563         /* allocate temporary buffer to store rings in */
 564         i = max_t(int, interface->num_tx_queues, interface->num_rx_queues);
 565         temp_ring = vmalloc(i * sizeof(struct fm10k_ring));
 566
 567         if (!temp_ring) {
 568                 err = -ENOMEM;
 569                 goto clear_reset;
 570         }
 571
 572         fm10k_down(interface);
 573
 574         /* Setup new Tx resources and free the old Tx resources in that order.
 575          * We can then assign the new resources to the rings via a memcpy.
 576          * The advantage to this approach is that we are guaranteed to still
 577          * have resources even in the case of an allocation failure.
 578          */
 579         if (new_tx_count != interface->tx_ring_count) {
 580                 for (i = 0; i < interface->num_tx_queues; i++) {
 581                         memcpy(&temp_ring[i], interface->tx_ring[i],
 582                                sizeof(struct fm10k_ring));
 583
 584                         temp_ring[i].count = new_tx_count;
 585                         err = fm10k_setup_tx_resources(&temp_ring[i]);
 586                         if (err) {
 587                                 while (i) {
 588                                         i--;
 589                                         fm10k_free_tx_resources(&temp_ring[i]);
 590                                 }
 591                                 goto err_setup;
 592                         }
 593                 }
 594
 595                 for (i = 0; i < interface->num_tx_queues; i++) {
 596                         fm10k_free_tx_resources(interface->tx_ring[i]);
 597
 598                         memcpy(interface->tx_ring[i], &temp_ring[i],
 599                                sizeof(struct fm10k_ring));
 600                 }
 601
 602                 interface->tx_ring_count = new_tx_count;
 603         }
 604
 605         /* Repeat the process for the Rx rings if needed */
 606         if (new_rx_count != interface->rx_ring_count) {
 607                 for (i = 0; i < interface->num_rx_queues; i++) {
 608                         memcpy(&temp_ring[i], interface->rx_ring[i],
 609                                sizeof(struct fm10k_ring));
 610
 611                         temp_ring[i].count = new_rx_count;
 612                         err = fm10k_setup_rx_resources(&temp_ring[i]);
 613                         if (err) {
 614                                 while (i) {
 615                                         i--;
 616                                         fm10k_free_rx_resources(&temp_ring[i]);
 617                                 }
 618                                 goto err_setup;
 619                         }
 620                 }
 621
 622                 for (i = 0; i < interface->num_rx_queues; i++) {
 623                         fm10k_free_rx_resources(interface->rx_ring[i]);
 624
 625                         memcpy(interface->rx_ring[i], &temp_ring[i],
 626                                sizeof(struct fm10k_ring));
 627                 }
 628
 629                 interface->rx_ring_count = new_rx_count;
 630         }
 631
 632 err_setup:
 633         fm10k_up(interface);
 634         vfree(temp_ring);
 635 clear_reset:
 636         clear_bit(__FM10K_RESETTING, interface->state);
 637         return err;
 638 }
 639
 640 static int fm10k_get_coalesce(struct net_device *dev,
 641                               struct ethtool_coalesce *ec)
 642 {
 643         struct fm10k_intfc *interface = netdev_priv(dev);
 644
 645         ec->use_adaptive_tx_coalesce = ITR_IS_ADAPTIVE(interface->tx_itr);
 646         ec->tx_coalesce_usecs = interface->tx_itr & ~FM10K_ITR_ADAPTIVE;
 647
 648         ec->use_adaptive_rx_coalesce = ITR_IS_ADAPTIVE(interface->rx_itr);
 649         ec->rx_coalesce_usecs = interface->rx_itr & ~FM10K_ITR_ADAPTIVE;
 650
 651         return 0;
 652 }
 653
 654 static int fm10k_set_coalesce(struct net_device *dev,
 655                               struct ethtool_coalesce *ec)
 656 {
 657         struct fm10k_intfc *interface = netdev_priv(dev);
 658         struct fm10k_q_vector *qv;
 659         u16 tx_itr, rx_itr;
 660         int i;
 661
 662         /* verify limits */
 663         if ((ec->rx_coalesce_usecs > FM10K_ITR_MAX) ||
 664             (ec->tx_coalesce_usecs > FM10K_ITR_MAX))
 665                 return -EINVAL;
 666
 667         /* record settings */
 668         tx_itr = ec->tx_coalesce_usecs;
 669         rx_itr = ec->rx_coalesce_usecs;
 670
 671         /* set initial values for adaptive ITR */
 672         if (ec->use_adaptive_tx_coalesce)
 673                 tx_itr = FM10K_ITR_ADAPTIVE | FM10K_TX_ITR_DEFAULT;
 674
 675         if (ec->use_adaptive_rx_coalesce)
 676                 rx_itr = FM10K_ITR_ADAPTIVE | FM10K_RX_ITR_DEFAULT;
 677
 678         /* update interface */
 679         interface->tx_itr = tx_itr;
 680         interface->rx_itr = rx_itr;
 681
 682         /* update q_vectors */
 683         for (i = 0; i < interface->num_q_vectors; i++) {
 684                 qv = interface->q_vector[i];
 685                 qv->tx.itr = tx_itr;
 686                 qv->rx.itr = rx_itr;
 687         }
 688
 689         return 0;
 690 }
 691
 692 static int fm10k_get_rss_hash_opts(struct fm10k_intfc *interface,
 693                                    struct ethtool_rxnfc *cmd)
 694 {
 695         cmd->data = 0;
 696
 697         /* Report default options for RSS on fm10k */
 698         switch (cmd->flow_type) {
 699         case TCP_V4_FLOW:
 700         case TCP_V6_FLOW:
 701                 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
 702                 /* fall through */
 703         case UDP_V4_FLOW:
 704                 if (test_bit(FM10K_FLAG_RSS_FIELD_IPV4_UDP,
 705                              interface->flags))
 706                         cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
 707                 /* fall through */
 708         case SCTP_V4_FLOW:
 709         case SCTP_V6_FLOW:
 710         case AH_ESP_V4_FLOW:
 711         case AH_ESP_V6_FLOW:
 712         case AH_V4_FLOW:
 713         case AH_V6_FLOW:
 714         case ESP_V4_FLOW:
 715         case ESP_V6_FLOW:
 716         case IPV4_FLOW:
 717         case IPV6_FLOW:
 718                 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
 719                 break;
 720         case UDP_V6_FLOW:
 721                 if (test_bit(FM10K_FLAG_RSS_FIELD_IPV6_UDP,
 722                              interface->flags))
 723                         cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
 724                 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
 725                 break;
 726         default:
 727                 return -EINVAL;
 728         }
 729
 730         return 0;
 731 }
 732
 733 static int fm10k_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd,
 734                            u32 __always_unused *rule_locs)
 735 {
 736         struct fm10k_intfc *interface = netdev_priv(dev);
 737         int ret = -EOPNOTSUPP;
 738
 739         switch (cmd->cmd) {
 740         case ETHTOOL_GRXRINGS:
 741                 cmd->data = interface->num_rx_queues;
 742                 ret = 0;
 743                 break;
 744         case ETHTOOL_GRXFH:
 745                 ret = fm10k_get_rss_hash_opts(interface, cmd);
 746                 break;
 747         default:
 748                 break;
 749         }
 750
 751         return ret;
 752 }
 753
 754 static int fm10k_set_rss_hash_opt(struct fm10k_intfc *interface,
 755                                   struct ethtool_rxnfc *nfc)
 756 {
 757         int rss_ipv4_udp = test_bit(FM10K_FLAG_RSS_FIELD_IPV4_UDP,
 758                                     interface->flags);
 759         int rss_ipv6_udp = test_bit(FM10K_FLAG_RSS_FIELD_IPV6_UDP,
 760                                     interface->flags);
 761
 762         /* RSS does not support anything other than hashing
 763          * to queues on src and dst IPs and ports
 764          */
 765         if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST |
 766                           RXH_L4_B_0_1 | RXH_L4_B_2_3))
 767                 return -EINVAL;
 768
 769         switch (nfc->flow_type) {
 770         case TCP_V4_FLOW:
 771         case TCP_V6_FLOW:
 772                 if (!(nfc->data & RXH_IP_SRC) ||
 773                     !(nfc->data & RXH_IP_DST) ||
 774                     !(nfc->data & RXH_L4_B_0_1) ||
 775                     !(nfc->data & RXH_L4_B_2_3))
 776                         return -EINVAL;
 777                 break;
 778         case UDP_V4_FLOW:
 779                 if (!(nfc->data & RXH_IP_SRC) ||
 780                     !(nfc->data & RXH_IP_DST))
 781                         return -EINVAL;
 782                 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
 783                 case 0:
 784                         clear_bit(FM10K_FLAG_RSS_FIELD_IPV4_UDP,
 785                                   interface->flags);
 786                         break;
 787                 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
 788                         set_bit(FM10K_FLAG_RSS_FIELD_IPV4_UDP,
 789                                 interface->flags);
 790                         break;
 791                 default:
 792                         return -EINVAL;
 793                 }
 794                 break;
 795         case UDP_V6_FLOW:
 796                 if (!(nfc->data & RXH_IP_SRC) ||
 797                     !(nfc->data & RXH_IP_DST))
 798                         return -EINVAL;
 799                 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
 800                 case 0:
 801                         clear_bit(FM10K_FLAG_RSS_FIELD_IPV6_UDP,
 802                                   interface->flags);
 803                         break;
 804                 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
 805                         set_bit(FM10K_FLAG_RSS_FIELD_IPV6_UDP,
 806                                 interface->flags);
 807                         break;
 808                 default:
 809                         return -EINVAL;
 810                 }
 811                 break;
 812         case AH_ESP_V4_FLOW:
 813         case AH_V4_FLOW:
 814         case ESP_V4_FLOW:
 815         case SCTP_V4_FLOW:
 816         case AH_ESP_V6_FLOW:
 817         case AH_V6_FLOW:
 818         case ESP_V6_FLOW:
 819         case SCTP_V6_FLOW:
 820                 if (!(nfc->data & RXH_IP_SRC) ||
 821                     !(nfc->data & RXH_IP_DST) ||
 822                     (nfc->data & RXH_L4_B_0_1) ||
 823                     (nfc->data & RXH_L4_B_2_3))
 824                         return -EINVAL;
 825                 break;
 826         default:
 827                 return -EINVAL;
 828         }
 829
 830         /* If something changed we need to update the MRQC register. Note that
 831          * test_bit() is guaranteed to return strictly 0 or 1, so testing for
 832          * equality is safe.
 833          */
 834         if ((rss_ipv4_udp != test_bit(FM10K_FLAG_RSS_FIELD_IPV4_UDP,
 835                                       interface->flags)) ||
 836             (rss_ipv6_udp != test_bit(FM10K_FLAG_RSS_FIELD_IPV6_UDP,
 837                                       interface->flags))) {
 838                 struct fm10k_hw *hw = &interface->hw;
 839                 bool warn = false;
 840                 u32 mrqc;
 841
 842                 /* Perform hash on these packet types */
 843                 mrqc = FM10K_MRQC_IPV4 |
 844                        FM10K_MRQC_TCP_IPV4 |
 845                        FM10K_MRQC_IPV6 |
 846                        FM10K_MRQC_TCP_IPV6;
 847
 848                 if (test_bit(FM10K_FLAG_RSS_FIELD_IPV4_UDP,
 849                              interface->flags)) {
 850                         mrqc |= FM10K_MRQC_UDP_IPV4;
 851                         warn = true;
 852                 }
 853                 if (test_bit(FM10K_FLAG_RSS_FIELD_IPV6_UDP,
 854                              interface->flags)) {
 855                         mrqc |= FM10K_MRQC_UDP_IPV6;
 856                         warn = true;
 857                 }
 858
 859                 /* If we enable UDP RSS display a warning that this may cause
 860                  * fragmented UDP packets to arrive out of order.
 861                  */
 862                 if (warn)
 863                         netif_warn(interface, drv, interface->netdev,
 864                                    "enabling UDP RSS: fragmented packets may arrive out of order to the stack above\n");
 865
 866                 fm10k_write_reg(hw, FM10K_MRQC(0), mrqc);
 867         }
 868
 869         return 0;
 870 }
 871
 872 static int fm10k_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd)
 873 {
 874         struct fm10k_intfc *interface = netdev_priv(dev);
 875         int ret = -EOPNOTSUPP;
 876
 877         switch (cmd->cmd) {
 878         case ETHTOOL_SRXFH:
 879                 ret = fm10k_set_rss_hash_opt(interface, cmd);
 880                 break;
 881         default:
 882                 break;
 883         }
 884
 885         return ret;
 886 }
 887
 888 static int fm10k_mbx_test(struct fm10k_intfc *interface, u64 *data)
 889 {
 890         struct fm10k_hw *hw = &interface->hw;
 891         struct fm10k_mbx_info *mbx = &hw->mbx;
 892         u32 attr_flag, test_msg[6];
 893         unsigned long timeout;
 894         int err = -EINVAL;
 895
 896         /* For now this is a VF only feature */
 897         if (hw->mac.type != fm10k_mac_vf)
 898                 return 0;
 899
 900         /* loop through both nested and unnested attribute types */
 901         for (attr_flag = BIT(FM10K_TEST_MSG_UNSET);
 902              attr_flag < BIT(2 * FM10K_TEST_MSG_NESTED);
 903              attr_flag += attr_flag) {
 904                 /* generate message to be tested */
 905                 fm10k_tlv_msg_test_create(test_msg, attr_flag);
 906
 907                 fm10k_mbx_lock(interface);
 908                 mbx->test_result = FM10K_NOT_IMPLEMENTED;
 909                 err = mbx->ops.enqueue_tx(hw, mbx, test_msg);
 910                 fm10k_mbx_unlock(interface);
 911
 912                 /* wait up to 1 second for response */
 913                 timeout = jiffies + HZ;
 914                 do {
 915                         if (err < 0)
 916                                 goto err_out;
 917
 918                         usleep_range(500, 1000);
 919
 920                         fm10k_mbx_lock(interface);
 921                         mbx->ops.process(hw, mbx);
 922                         fm10k_mbx_unlock(interface);
 923
 924                         err = mbx->test_result;
 925                         if (!err)
 926                                 break;
 927                 } while (time_is_after_jiffies(timeout));
 928
 929                 /* reporting errors */
 930                 if (err)
 931                         goto err_out;
 932         }
 933
 934 err_out:
 935         *data = err < 0 ? (attr_flag) : (err > 0);
 936         return err;
 937 }
 938
 939 static void fm10k_self_test(struct net_device *dev,
 940                             struct ethtool_test *eth_test, u64 *data)
 941 {
 942         struct fm10k_intfc *interface = netdev_priv(dev);
 943         struct fm10k_hw *hw = &interface->hw;
 944
 945         memset(data, 0, sizeof(*data) * FM10K_TEST_LEN);
 946
 947         if (FM10K_REMOVED(hw->hw_addr)) {
 948                 netif_err(interface, drv, dev,
 949                           "Interface removed - test blocked\n");
 950                 eth_test->flags |= ETH_TEST_FL_FAILED;
 951                 return;
 952         }
 953
 954         if (fm10k_mbx_test(interface, &data[FM10K_TEST_MBX]))
 955                 eth_test->flags |= ETH_TEST_FL_FAILED;
 956 }
 957
 958 static u32 fm10k_get_priv_flags(struct net_device *netdev)
 959 {
 960         return 0;
 961 }
 962
 963 static int fm10k_set_priv_flags(struct net_device *netdev, u32 priv_flags)
 964 {
 965         if (priv_flags >= BIT(FM10K_PRV_FLAG_LEN))
 966                 return -EINVAL;
 967
 968         return 0;
 969 }
 970
 971 static u32 fm10k_get_reta_size(struct net_device __always_unused *netdev)
 972 {
 973         return FM10K_RETA_SIZE * FM10K_RETA_ENTRIES_PER_REG;
 974 }
 975
 976 void fm10k_write_reta(struct fm10k_intfc *interface, const u32 *indir)
 977 {
 978         u16 rss_i = interface->ring_feature[RING_F_RSS].indices;
 979         struct fm10k_hw *hw = &interface->hw;
 980         u32 table[4];
 981         int i, j;
 982
 983         /* record entries to reta table */
 984         for (i = 0; i < FM10K_RETA_SIZE; i++) {
 985                 u32 reta, n;
 986
 987                 /* generate a new table if we weren't given one */
 988                 for (j = 0; j < 4; j++) {
 989                         if (indir)
 990                                 n = indir[4 * i + j];
 991                         else
 992                                 n = ethtool_rxfh_indir_default(4 * i + j,
 993                                                                rss_i);
 994
 995                         table[j] = n;
 996                 }
 997
 998                 reta = table[0] |
 999                         (table[1] << 8) |
1000                         (table[2] << 16) |
1001                         (table[3] << 24);
1002
1003                 if (interface->reta[i] == reta)
1004                         continue;
1005
1006                 interface->reta[i] = reta;
1007                 fm10k_write_reg(hw, FM10K_RETA(0, i), reta);
1008         }
1009 }
1010
1011 static int fm10k_get_reta(struct net_device *netdev, u32 *indir)
1012 {
1013         struct fm10k_intfc *interface = netdev_priv(netdev);
1014         int i;
1015
1016         if (!indir)
1017                 return 0;
1018
1019         for (i = 0; i < FM10K_RETA_SIZE; i++, indir += 4) {
1020                 u32 reta = interface->reta[i];
1021
1022                 indir[0] = (reta << 24) >> 24;
1023                 indir[1] = (reta << 16) >> 24;
1024                 indir[2] = (reta <<  8) >> 24;
1025                 indir[3] = (reta) >> 24;
1026         }
1027
1028         return 0;
1029 }
1030
1031 static int fm10k_set_reta(struct net_device *netdev, const u32 *indir)
1032 {
1033         struct fm10k_intfc *interface = netdev_priv(netdev);
1034         int i;
1035         u16 rss_i;
1036
1037         if (!indir)
1038                 return 0;
1039
1040         /* Verify user input. */
1041         rss_i = interface->ring_feature[RING_F_RSS].indices;
1042         for (i = fm10k_get_reta_size(netdev); i--;) {
1043                 if (indir[i] < rss_i)
1044                         continue;
1045                 return -EINVAL;
1046         }
1047
1048         fm10k_write_reta(interface, indir);
1049
1050         return 0;
1051 }
1052
1053 static u32 fm10k_get_rssrk_size(struct net_device __always_unused *netdev)
1054 {
1055         return FM10K_RSSRK_SIZE * FM10K_RSSRK_ENTRIES_PER_REG;
1056 }
1057
1058 static int fm10k_get_rssh(struct net_device *netdev, u32 *indir, u8 *key,
1059                           u8 *hfunc)
1060 {
1061         struct fm10k_intfc *interface = netdev_priv(netdev);
1062         int i, err;
1063
1064         if (hfunc)
1065                 *hfunc = ETH_RSS_HASH_TOP;
1066
1067         err = fm10k_get_reta(netdev, indir);
1068         if (err || !key)
1069                 return err;
1070
1071         for (i = 0; i < FM10K_RSSRK_SIZE; i++, key += 4)
1072                 *(__le32 *)key = cpu_to_le32(interface->rssrk[i]);
1073
1074         return 0;
1075 }
1076
1077 static int fm10k_set_rssh(struct net_device *netdev, const u32 *indir,
1078                           const u8 *key, const u8 hfunc)
1079 {
1080         struct fm10k_intfc *interface = netdev_priv(netdev);
1081         struct fm10k_hw *hw = &interface->hw;
1082         int i, err;
1083
1084         /* We do not allow change in unsupported parameters */
1085         if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)
1086                 return -EOPNOTSUPP;
1087
1088         err = fm10k_set_reta(netdev, indir);
1089         if (err || !key)
1090                 return err;
1091
1092         for (i = 0; i < FM10K_RSSRK_SIZE; i++, key += 4) {
1093                 u32 rssrk = le32_to_cpu(*(__le32 *)key);
1094
1095                 if (interface->rssrk[i] == rssrk)
1096                         continue;
1097
1098                 interface->rssrk[i] = rssrk;
1099                 fm10k_write_reg(hw, FM10K_RSSRK(0, i), rssrk);
1100         }
1101
1102         return 0;
1103 }
1104
1105 static unsigned int fm10k_max_channels(struct net_device *dev)
1106 {
1107         struct fm10k_intfc *interface = netdev_priv(dev);
1108         unsigned int max_combined = interface->hw.mac.max_queues;
1109         u8 tcs = netdev_get_num_tc(dev);
1110
1111         /* For QoS report channels per traffic class */
1112         if (tcs > 1)
1113                 max_combined = BIT((fls(max_combined / tcs) - 1));
1114
1115         return max_combined;
1116 }
1117
1118 static void fm10k_get_channels(struct net_device *dev,
1119                                struct ethtool_channels *ch)
1120 {
1121         struct fm10k_intfc *interface = netdev_priv(dev);
1122         struct fm10k_hw *hw = &interface->hw;
1123
1124         /* report maximum channels */
1125         ch->max_combined = fm10k_max_channels(dev);
1126
1127         /* report info for other vector */
1128         ch->max_other = NON_Q_VECTORS(hw);
1129         ch->other_count = ch->max_other;
1130
1131         /* record RSS queues */
1132         ch->combined_count = interface->ring_feature[RING_F_RSS].indices;
1133 }
1134
1135 static int fm10k_set_channels(struct net_device *dev,
1136                               struct ethtool_channels *ch)
1137 {
1138         struct fm10k_intfc *interface = netdev_priv(dev);
1139         unsigned int count = ch->combined_count;
1140         struct fm10k_hw *hw = &interface->hw;
1141
1142         /* verify they are not requesting separate vectors */
1143         if (!count || ch->rx_count || ch->tx_count)
1144                 return -EINVAL;
1145
1146         /* verify other_count has not changed */
1147         if (ch->other_count != NON_Q_VECTORS(hw))
1148                 return -EINVAL;
1149
1150         /* verify the number of channels does not exceed hardware limits */
1151         if (count > fm10k_max_channels(dev))
1152                 return -EINVAL;
1153
1154         interface->ring_feature[RING_F_RSS].limit = count;
1155
1156         /* use setup TC to update any traffic class queue mapping */
1157         return fm10k_setup_tc(dev, netdev_get_num_tc(dev));
1158 }
1159
1160 static const struct ethtool_ops fm10k_ethtool_ops = {
1161         .get_strings            = fm10k_get_strings,
1162         .get_sset_count         = fm10k_get_sset_count,
1163         .get_ethtool_stats      = fm10k_get_ethtool_stats,
1164         .get_drvinfo            = fm10k_get_drvinfo,
1165         .get_link               = ethtool_op_get_link,
1166         .get_pauseparam         = fm10k_get_pauseparam,
1167         .set_pauseparam         = fm10k_set_pauseparam,
1168         .get_msglevel           = fm10k_get_msglevel,
1169         .set_msglevel           = fm10k_set_msglevel,
1170         .get_ringparam          = fm10k_get_ringparam,
1171         .set_ringparam          = fm10k_set_ringparam,
1172         .get_coalesce           = fm10k_get_coalesce,
1173         .set_coalesce           = fm10k_set_coalesce,
1174         .get_rxnfc              = fm10k_get_rxnfc,
1175         .set_rxnfc              = fm10k_set_rxnfc,
1176         .get_regs               = fm10k_get_regs,
1177         .get_regs_len           = fm10k_get_regs_len,
1178         .self_test              = fm10k_self_test,
1179         .get_priv_flags         = fm10k_get_priv_flags,
1180         .set_priv_flags         = fm10k_set_priv_flags,
1181         .get_rxfh_indir_size    = fm10k_get_reta_size,
1182         .get_rxfh_key_size      = fm10k_get_rssrk_size,
1183         .get_rxfh               = fm10k_get_rssh,
1184         .set_rxfh               = fm10k_set_rssh,
1185         .get_channels           = fm10k_get_channels,
1186         .set_channels           = fm10k_set_channels,
1187         .get_ts_info            = ethtool_op_get_ts_info,
1188 };
1189
1190 void fm10k_set_ethtool_ops(struct net_device *dev)
1191 {
1192         dev->ethtool_ops = &fm10k_ethtool_ops;
1193 }