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

   1 // SPDX-License-Identifier: GPL-2.0
   2 /* Copyright(c) 2013 - 2019 Intel Corporation. */
   3
   4 #include <linux/ethtool.h>
   5 #include <linux/vmalloc.h>
   6
   7 #include "fm10k.h"
   8
   9 struct fm10k_stats {
  10         /* The stat_string is expected to be a format string formatted using
  11          * vsnprintf by fm10k_add_stat_strings. Every member of a stats array
  12          * should use the same format specifiers as they will be formatted
  13          * using the same variadic arguments.
  14          */
  15         char stat_string[ETH_GSTRING_LEN];
  16         int sizeof_stat;
  17         int stat_offset;
  18 };
  19
  20 #define FM10K_STAT_FIELDS(_type, _name, _stat) { \
  21         .stat_string = _name, \
  22         .sizeof_stat = sizeof_field(_type, _stat), \
  23         .stat_offset = offsetof(_type, _stat) \
  24 }
  25
  26 /* netdevice statistics */
  27 #define FM10K_NETDEV_STAT(_net_stat) \
  28         FM10K_STAT_FIELDS(struct net_device_stats, __stringify(_net_stat), \
  29                           _net_stat)
  30
  31 static const struct fm10k_stats fm10k_gstrings_net_stats[] = {
  32         FM10K_NETDEV_STAT(tx_packets),
  33         FM10K_NETDEV_STAT(tx_bytes),
  34         FM10K_NETDEV_STAT(tx_errors),
  35         FM10K_NETDEV_STAT(rx_packets),
  36         FM10K_NETDEV_STAT(rx_bytes),
  37         FM10K_NETDEV_STAT(rx_errors),
  38         FM10K_NETDEV_STAT(rx_dropped),
  39
  40         /* detailed Rx errors */
  41         FM10K_NETDEV_STAT(rx_length_errors),
  42         FM10K_NETDEV_STAT(rx_crc_errors),
  43         FM10K_NETDEV_STAT(rx_fifo_errors),
  44 };
  45
  46 #define FM10K_NETDEV_STATS_LEN  ARRAY_SIZE(fm10k_gstrings_net_stats)
  47
  48 /* General interface statistics */
  49 #define FM10K_STAT(_name, _stat) \
  50         FM10K_STAT_FIELDS(struct fm10k_intfc, _name, _stat)
  51
  52 static const struct fm10k_stats fm10k_gstrings_global_stats[] = {
  53         FM10K_STAT("tx_restart_queue", restart_queue),
  54         FM10K_STAT("tx_busy", tx_busy),
  55         FM10K_STAT("tx_csum_errors", tx_csum_errors),
  56         FM10K_STAT("rx_alloc_failed", alloc_failed),
  57         FM10K_STAT("rx_csum_errors", rx_csum_errors),
  58
  59         FM10K_STAT("tx_packets_nic", tx_packets_nic),
  60         FM10K_STAT("tx_bytes_nic", tx_bytes_nic),
  61         FM10K_STAT("rx_packets_nic", rx_packets_nic),
  62         FM10K_STAT("rx_bytes_nic", rx_bytes_nic),
  63         FM10K_STAT("rx_drops_nic", rx_drops_nic),
  64         FM10K_STAT("rx_overrun_pf", rx_overrun_pf),
  65         FM10K_STAT("rx_overrun_vf", rx_overrun_vf),
  66
  67         FM10K_STAT("swapi_status", hw.swapi.status),
  68         FM10K_STAT("mac_rules_used", hw.swapi.mac.used),
  69         FM10K_STAT("mac_rules_avail", hw.swapi.mac.avail),
  70
  71         FM10K_STAT("reset_while_pending", hw.mac.reset_while_pending),
  72
  73         FM10K_STAT("tx_hang_count", tx_timeout_count),
  74 };
  75
  76 static const struct fm10k_stats fm10k_gstrings_pf_stats[] = {
  77         FM10K_STAT("timeout", stats.timeout.count),
  78         FM10K_STAT("ur", stats.ur.count),
  79         FM10K_STAT("ca", stats.ca.count),
  80         FM10K_STAT("um", stats.um.count),
  81         FM10K_STAT("xec", stats.xec.count),
  82         FM10K_STAT("vlan_drop", stats.vlan_drop.count),
  83         FM10K_STAT("loopback_drop", stats.loopback_drop.count),
  84         FM10K_STAT("nodesc_drop", stats.nodesc_drop.count),
  85 };
  86
  87 /* mailbox statistics */
  88 #define FM10K_MBX_STAT(_name, _stat) \
  89         FM10K_STAT_FIELDS(struct fm10k_mbx_info, _name, _stat)
  90
  91 static const struct fm10k_stats fm10k_gstrings_mbx_stats[] = {
  92         FM10K_MBX_STAT("mbx_tx_busy", tx_busy),
  93         FM10K_MBX_STAT("mbx_tx_dropped", tx_dropped),
  94         FM10K_MBX_STAT("mbx_tx_messages", tx_messages),
  95         FM10K_MBX_STAT("mbx_tx_dwords", tx_dwords),
  96         FM10K_MBX_STAT("mbx_tx_mbmem_pulled", tx_mbmem_pulled),
  97         FM10K_MBX_STAT("mbx_rx_messages", rx_messages),
  98         FM10K_MBX_STAT("mbx_rx_dwords", rx_dwords),
  99         FM10K_MBX_STAT("mbx_rx_parse_err", rx_parse_err),
 100         FM10K_MBX_STAT("mbx_rx_mbmem_pushed", rx_mbmem_pushed),
 101 };
 102
 103 /* per-queue ring statistics */
 104 #define FM10K_QUEUE_STAT(_name, _stat) \
 105         FM10K_STAT_FIELDS(struct fm10k_ring, _name, _stat)
 106
 107 static const struct fm10k_stats fm10k_gstrings_queue_stats[] = {
 108         FM10K_QUEUE_STAT("%s_queue_%u_packets", stats.packets),
 109         FM10K_QUEUE_STAT("%s_queue_%u_bytes", stats.bytes),
 110 };
 111
 112 #define FM10K_GLOBAL_STATS_LEN ARRAY_SIZE(fm10k_gstrings_global_stats)
 113 #define FM10K_PF_STATS_LEN ARRAY_SIZE(fm10k_gstrings_pf_stats)
 114 #define FM10K_MBX_STATS_LEN ARRAY_SIZE(fm10k_gstrings_mbx_stats)
 115 #define FM10K_QUEUE_STATS_LEN ARRAY_SIZE(fm10k_gstrings_queue_stats)
 116
 117 #define FM10K_STATIC_STATS_LEN (FM10K_GLOBAL_STATS_LEN + \
 118                                 FM10K_NETDEV_STATS_LEN + \
 119                                 FM10K_MBX_STATS_LEN)
 120
 121 static const char fm10k_gstrings_test[][ETH_GSTRING_LEN] = {
 122         "Mailbox test (on/offline)"
 123 };
 124
 125 #define FM10K_TEST_LEN (sizeof(fm10k_gstrings_test) / ETH_GSTRING_LEN)
 126
 127 enum fm10k_self_test_types {
 128         FM10K_TEST_MBX,
 129         FM10K_TEST_MAX = FM10K_TEST_LEN
 130 };
 131
 132 enum {
 133         FM10K_PRV_FLAG_LEN,
 134 };
 135
 136 static const char fm10k_prv_flags[FM10K_PRV_FLAG_LEN][ETH_GSTRING_LEN] = {
 137 };
 138
 139 static void __fm10k_add_stat_strings(u8 **p, const struct fm10k_stats stats[],
 140                                      const unsigned int size, ...)
 141 {
 142         unsigned int i;
 143
 144         for (i = 0; i < size; i++) {
 145                 va_list args;
 146
 147                 va_start(args, size);
 148                 vsnprintf(*p, ETH_GSTRING_LEN, stats[i].stat_string, args);
 149                 *p += ETH_GSTRING_LEN;
 150                 va_end(args);
 151         }
 152 }
 153
 154 #define fm10k_add_stat_strings(p, stats, ...) \
 155         __fm10k_add_stat_strings(p, stats, ARRAY_SIZE(stats), ## __VA_ARGS__)
 156
 157 static void fm10k_get_stat_strings(struct net_device *dev, u8 *data)
 158 {
 159         struct fm10k_intfc *interface = netdev_priv(dev);
 160         unsigned int i;
 161
 162         fm10k_add_stat_strings(&data, fm10k_gstrings_net_stats);
 163
 164         fm10k_add_stat_strings(&data, fm10k_gstrings_global_stats);
 165
 166         fm10k_add_stat_strings(&data, fm10k_gstrings_mbx_stats);
 167
 168         if (interface->hw.mac.type != fm10k_mac_vf)
 169                 fm10k_add_stat_strings(&data, fm10k_gstrings_pf_stats);
 170
 171         for (i = 0; i < interface->hw.mac.max_queues; i++) {
 172                 fm10k_add_stat_strings(&data, fm10k_gstrings_queue_stats,
 173                                        "tx", i);
 174
 175                 fm10k_add_stat_strings(&data, fm10k_gstrings_queue_stats,
 176                                        "rx", i);
 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
 227         if (!pointer) {
 228                 /* memory is not zero allocated so we have to clear it */
 229                 for (i = 0; i < size; i++)
 230                         *((*data)++) = 0;
 231                 return;
 232         }
 233
 234         for (i = 0; i < size; i++) {
 235                 char *p = (char *)pointer + stats[i].stat_offset;
 236
 237                 switch (stats[i].sizeof_stat) {
 238                 case sizeof(u64):
 239                         *((*data)++) = *(u64 *)p;
 240                         break;
 241                 case sizeof(u32):
 242                         *((*data)++) = *(u32 *)p;
 243                         break;
 244                 case sizeof(u16):
 245                         *((*data)++) = *(u16 *)p;
 246                         break;
 247                 case sizeof(u8):
 248                         *((*data)++) = *(u8 *)p;
 249                         break;
 250                 default:
 251                         WARN_ONCE(1, "unexpected stat size for %s",
 252                                   stats[i].stat_string);
 253                         *((*data)++) = 0;
 254                 }
 255         }
 256 }
 257
 258 #define fm10k_add_ethtool_stats(data, pointer, stats) \
 259         __fm10k_add_ethtool_stats(data, pointer, stats, ARRAY_SIZE(stats))
 260
 261 static void fm10k_get_ethtool_stats(struct net_device *netdev,
 262                                     struct ethtool_stats __always_unused *stats,
 263                                     u64 *data)
 264 {
 265         struct fm10k_intfc *interface = netdev_priv(netdev);
 266         struct net_device_stats *net_stats = &netdev->stats;
 267         int i;
 268
 269         fm10k_update_stats(interface);
 270
 271         fm10k_add_ethtool_stats(&data, net_stats, fm10k_gstrings_net_stats);
 272
 273         fm10k_add_ethtool_stats(&data, interface, fm10k_gstrings_global_stats);
 274
 275         fm10k_add_ethtool_stats(&data, &interface->hw.mbx,
 276                                 fm10k_gstrings_mbx_stats);
 277
 278         if (interface->hw.mac.type != fm10k_mac_vf) {
 279                 fm10k_add_ethtool_stats(&data, interface,
 280                                         fm10k_gstrings_pf_stats);
 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
 290                 ring = interface->rx_ring[i];
 291                 fm10k_add_ethtool_stats(&data, ring,
 292                                         fm10k_gstrings_queue_stats);
 293         }
 294 }
 295
 296 /* If function below adds more registers this define needs to be updated */
 297 #define FM10K_REGS_LEN_Q 29
 298
 299 static void fm10k_get_reg_q(struct fm10k_hw *hw, u32 *buff, int i)
 300 {
 301         int idx = 0;
 302
 303         buff[idx++] = fm10k_read_reg(hw, FM10K_RDBAL(i));
 304         buff[idx++] = fm10k_read_reg(hw, FM10K_RDBAH(i));
 305         buff[idx++] = fm10k_read_reg(hw, FM10K_RDLEN(i));
 306         buff[idx++] = fm10k_read_reg(hw, FM10K_TPH_RXCTRL(i));
 307         buff[idx++] = fm10k_read_reg(hw, FM10K_RDH(i));
 308         buff[idx++] = fm10k_read_reg(hw, FM10K_RDT(i));
 309         buff[idx++] = fm10k_read_reg(hw, FM10K_RXQCTL(i));
 310         buff[idx++] = fm10k_read_reg(hw, FM10K_RXDCTL(i));
 311         buff[idx++] = fm10k_read_reg(hw, FM10K_RXINT(i));
 312         buff[idx++] = fm10k_read_reg(hw, FM10K_SRRCTL(i));
 313         buff[idx++] = fm10k_read_reg(hw, FM10K_QPRC(i));
 314         buff[idx++] = fm10k_read_reg(hw, FM10K_QPRDC(i));
 315         buff[idx++] = fm10k_read_reg(hw, FM10K_QBRC_L(i));
 316         buff[idx++] = fm10k_read_reg(hw, FM10K_QBRC_H(i));
 317         buff[idx++] = fm10k_read_reg(hw, FM10K_TDBAL(i));
 318         buff[idx++] = fm10k_read_reg(hw, FM10K_TDBAH(i));
 319         buff[idx++] = fm10k_read_reg(hw, FM10K_TDLEN(i));
 320         buff[idx++] = fm10k_read_reg(hw, FM10K_TPH_TXCTRL(i));
 321         buff[idx++] = fm10k_read_reg(hw, FM10K_TDH(i));
 322         buff[idx++] = fm10k_read_reg(hw, FM10K_TDT(i));
 323         buff[idx++] = fm10k_read_reg(hw, FM10K_TXDCTL(i));
 324         buff[idx++] = fm10k_read_reg(hw, FM10K_TXQCTL(i));
 325         buff[idx++] = fm10k_read_reg(hw, FM10K_TXINT(i));
 326         buff[idx++] = fm10k_read_reg(hw, FM10K_QPTC(i));
 327         buff[idx++] = fm10k_read_reg(hw, FM10K_QBTC_L(i));
 328         buff[idx++] = fm10k_read_reg(hw, FM10K_QBTC_H(i));
 329         buff[idx++] = fm10k_read_reg(hw, FM10K_TQDLOC(i));
 330         buff[idx++] = fm10k_read_reg(hw, FM10K_TX_SGLORT(i));
 331         buff[idx++] = fm10k_read_reg(hw, FM10K_PFVTCTL(i));
 332
 333         BUG_ON(idx != FM10K_REGS_LEN_Q);
 334 }
 335
 336 /* If function above adds more registers this define needs to be updated */
 337 #define FM10K_REGS_LEN_VSI 43
 338
 339 static void fm10k_get_reg_vsi(struct fm10k_hw *hw, u32 *buff, int i)
 340 {
 341         int idx = 0, j;
 342
 343         buff[idx++] = fm10k_read_reg(hw, FM10K_MRQC(i));
 344         for (j = 0; j < 10; j++)
 345                 buff[idx++] = fm10k_read_reg(hw, FM10K_RSSRK(i, j));
 346         for (j = 0; j < 32; j++)
 347                 buff[idx++] = fm10k_read_reg(hw, FM10K_RETA(i, j));
 348
 349         BUG_ON(idx != FM10K_REGS_LEN_VSI);
 350 }
 351
 352 static void fm10k_get_regs(struct net_device *netdev,
 353                            struct ethtool_regs *regs, void *p)
 354 {
 355         struct fm10k_intfc *interface = netdev_priv(netdev);
 356         struct fm10k_hw *hw = &interface->hw;
 357         u32 *buff = p;
 358         u16 i;
 359
 360         regs->version = BIT(24) | (hw->revision_id << 16) | hw->device_id;
 361
 362         switch (hw->mac.type) {
 363         case fm10k_mac_pf:
 364                 /* General PF Registers */
 365                 *(buff++) = fm10k_read_reg(hw, FM10K_CTRL);
 366                 *(buff++) = fm10k_read_reg(hw, FM10K_CTRL_EXT);
 367                 *(buff++) = fm10k_read_reg(hw, FM10K_GCR);
 368                 *(buff++) = fm10k_read_reg(hw, FM10K_GCR_EXT);
 369
 370                 for (i = 0; i < 8; i++) {
 371                         *(buff++) = fm10k_read_reg(hw, FM10K_DGLORTMAP(i));
 372                         *(buff++) = fm10k_read_reg(hw, FM10K_DGLORTDEC(i));
 373                 }
 374
 375                 for (i = 0; i < 65; i++) {
 376                         fm10k_get_reg_vsi(hw, buff, i);
 377                         buff += FM10K_REGS_LEN_VSI;
 378                 }
 379
 380                 *(buff++) = fm10k_read_reg(hw, FM10K_DMA_CTRL);
 381                 *(buff++) = fm10k_read_reg(hw, FM10K_DMA_CTRL2);
 382
 383                 for (i = 0; i < FM10K_MAX_QUEUES_PF; i++) {
 384                         fm10k_get_reg_q(hw, buff, i);
 385                         buff += FM10K_REGS_LEN_Q;
 386                 }
 387
 388                 *(buff++) = fm10k_read_reg(hw, FM10K_TPH_CTRL);
 389
 390                 for (i = 0; i < 8; i++)
 391                         *(buff++) = fm10k_read_reg(hw, FM10K_INT_MAP(i));
 392
 393                 /* Interrupt Throttling Registers */
 394                 for (i = 0; i < 130; i++)
 395                         *(buff++) = fm10k_read_reg(hw, FM10K_ITR(i));
 396
 397                 break;
 398         case fm10k_mac_vf:
 399                 /* General VF registers */
 400                 *(buff++) = fm10k_read_reg(hw, FM10K_VFCTRL);
 401                 *(buff++) = fm10k_read_reg(hw, FM10K_VFINT_MAP);
 402                 *(buff++) = fm10k_read_reg(hw, FM10K_VFSYSTIME);
 403
 404                 /* Interrupt Throttling Registers */
 405                 for (i = 0; i < 8; i++)
 406                         *(buff++) = fm10k_read_reg(hw, FM10K_VFITR(i));
 407
 408                 fm10k_get_reg_vsi(hw, buff, 0);
 409                 buff += FM10K_REGS_LEN_VSI;
 410
 411                 for (i = 0; i < FM10K_MAX_QUEUES_POOL; i++) {
 412                         if (i < hw->mac.max_queues)
 413                                 fm10k_get_reg_q(hw, buff, i);
 414                         else
 415                                 memset(buff, 0, sizeof(u32) * FM10K_REGS_LEN_Q);
 416                         buff += FM10K_REGS_LEN_Q;
 417                 }
 418
 419                 break;
 420         default:
 421                 return;
 422         }
 423 }
 424
 425 /* If function above adds more registers these define need to be updated */
 426 #define FM10K_REGS_LEN_PF \
 427 (162 + (65 * FM10K_REGS_LEN_VSI) + (FM10K_MAX_QUEUES_PF * FM10K_REGS_LEN_Q))
 428 #define FM10K_REGS_LEN_VF \
 429 (11 + FM10K_REGS_LEN_VSI + (FM10K_MAX_QUEUES_POOL * FM10K_REGS_LEN_Q))
 430
 431 static int fm10k_get_regs_len(struct net_device *netdev)
 432 {
 433         struct fm10k_intfc *interface = netdev_priv(netdev);
 434         struct fm10k_hw *hw = &interface->hw;
 435
 436         switch (hw->mac.type) {
 437         case fm10k_mac_pf:
 438                 return FM10K_REGS_LEN_PF * sizeof(u32);
 439         case fm10k_mac_vf:
 440                 return FM10K_REGS_LEN_VF * sizeof(u32);
 441         default:
 442                 return 0;
 443         }
 444 }
 445
 446 static void fm10k_get_drvinfo(struct net_device *dev,
 447                               struct ethtool_drvinfo *info)
 448 {
 449         struct fm10k_intfc *interface = netdev_priv(dev);
 450
 451         strscpy(info->driver, fm10k_driver_name,
 452                 sizeof(info->driver));
 453         strscpy(info->bus_info, pci_name(interface->pdev),
 454                 sizeof(info->bus_info));
 455 }
 456
 457 static void fm10k_get_pauseparam(struct net_device *dev,
 458                                  struct ethtool_pauseparam *pause)
 459 {
 460         struct fm10k_intfc *interface = netdev_priv(dev);
 461
 462         /* record fixed values for autoneg and tx pause */
 463         pause->autoneg = 0;
 464         pause->tx_pause = 1;
 465
 466         pause->rx_pause = interface->rx_pause ? 1 : 0;
 467 }
 468
 469 static int fm10k_set_pauseparam(struct net_device *dev,
 470                                 struct ethtool_pauseparam *pause)
 471 {
 472         struct fm10k_intfc *interface = netdev_priv(dev);
 473         struct fm10k_hw *hw = &interface->hw;
 474
 475         if (pause->autoneg || !pause->tx_pause)
 476                 return -EINVAL;
 477
 478         /* we can only support pause on the PF to avoid head-of-line blocking */
 479         if (hw->mac.type == fm10k_mac_pf)
 480                 interface->rx_pause = pause->rx_pause ? ~0 : 0;
 481         else if (pause->rx_pause)
 482                 return -EINVAL;
 483
 484         if (netif_running(dev))
 485                 fm10k_update_rx_drop_en(interface);
 486
 487         return 0;
 488 }
 489
 490 static u32 fm10k_get_msglevel(struct net_device *netdev)
 491 {
 492         struct fm10k_intfc *interface = netdev_priv(netdev);
 493
 494         return interface->msg_enable;
 495 }
 496
 497 static void fm10k_set_msglevel(struct net_device *netdev, u32 data)
 498 {
 499         struct fm10k_intfc *interface = netdev_priv(netdev);
 500
 501         interface->msg_enable = data;
 502 }
 503
 504 static void fm10k_get_ringparam(struct net_device *netdev,
 505                                 struct ethtool_ringparam *ring,
 506                                 struct kernel_ethtool_ringparam *kernel_ring,
 507                                 struct netlink_ext_ack *extack)
 508 {
 509         struct fm10k_intfc *interface = netdev_priv(netdev);
 510
 511         ring->rx_max_pending = FM10K_MAX_RXD;
 512         ring->tx_max_pending = FM10K_MAX_TXD;
 513         ring->rx_mini_max_pending = 0;
 514         ring->rx_jumbo_max_pending = 0;
 515         ring->rx_pending = interface->rx_ring_count;
 516         ring->tx_pending = interface->tx_ring_count;
 517         ring->rx_mini_pending = 0;
 518         ring->rx_jumbo_pending = 0;
 519 }
 520
 521 static int fm10k_set_ringparam(struct net_device *netdev,
 522                                struct ethtool_ringparam *ring,
 523                                struct kernel_ethtool_ringparam *kernel_ring,
 524                                struct netlink_ext_ack *extack)
 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(array_size(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                               struct kernel_ethtool_coalesce *kernel_coal,
 641                               struct netlink_ext_ack *extack)
 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                               struct kernel_ethtool_coalesce *kernel_coal,
 657                               struct netlink_ext_ack *extack)
 658 {
 659         struct fm10k_intfc *interface = netdev_priv(dev);
 660         u16 tx_itr, rx_itr;
 661         int i;
 662
 663         /* verify limits */
 664         if ((ec->rx_coalesce_usecs > FM10K_ITR_MAX) ||
 665             (ec->tx_coalesce_usecs > FM10K_ITR_MAX))
 666                 return -EINVAL;
 667
 668         /* record settings */
 669         tx_itr = ec->tx_coalesce_usecs;
 670         rx_itr = ec->rx_coalesce_usecs;
 671
 672         /* set initial values for adaptive ITR */
 673         if (ec->use_adaptive_tx_coalesce)
 674                 tx_itr = FM10K_ITR_ADAPTIVE | FM10K_TX_ITR_DEFAULT;
 675
 676         if (ec->use_adaptive_rx_coalesce)
 677                 rx_itr = FM10K_ITR_ADAPTIVE | FM10K_RX_ITR_DEFAULT;
 678
 679         /* update interface */
 680         interface->tx_itr = tx_itr;
 681         interface->rx_itr = rx_itr;
 682
 683         /* update q_vectors */
 684         for (i = 0; i < interface->num_q_vectors; i++) {
 685                 struct fm10k_q_vector *qv = interface->q_vector[i];
 686
 687                 qv->tx.itr = tx_itr;
 688                 qv->rx.itr = rx_itr;
 689         }
 690
 691         return 0;
 692 }
 693
 694 static int fm10k_get_rss_hash_opts(struct fm10k_intfc *interface,
 695                                    struct ethtool_rxnfc *cmd)
 696 {
 697         cmd->data = 0;
 698
 699         /* Report default options for RSS on fm10k */
 700         switch (cmd->flow_type) {
 701         case TCP_V4_FLOW:
 702         case TCP_V6_FLOW:
 703                 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
 704                 fallthrough;
 705         case UDP_V4_FLOW:
 706                 if (test_bit(FM10K_FLAG_RSS_FIELD_IPV4_UDP,
 707                              interface->flags))
 708                         cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
 709                 fallthrough;
 710         case SCTP_V4_FLOW:
 711         case SCTP_V6_FLOW:
 712         case AH_ESP_V4_FLOW:
 713         case AH_ESP_V6_FLOW:
 714         case AH_V4_FLOW:
 715         case AH_V6_FLOW:
 716         case ESP_V4_FLOW:
 717         case ESP_V6_FLOW:
 718         case IPV4_FLOW:
 719         case IPV6_FLOW:
 720                 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
 721                 break;
 722         case UDP_V6_FLOW:
 723                 if (test_bit(FM10K_FLAG_RSS_FIELD_IPV6_UDP,
 724                              interface->flags))
 725                         cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
 726                 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
 727                 break;
 728         default:
 729                 return -EINVAL;
 730         }
 731
 732         return 0;
 733 }
 734
 735 static int fm10k_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd,
 736                            u32 __always_unused *rule_locs)
 737 {
 738         struct fm10k_intfc *interface = netdev_priv(dev);
 739         int ret = -EOPNOTSUPP;
 740
 741         switch (cmd->cmd) {
 742         case ETHTOOL_GRXRINGS:
 743                 cmd->data = interface->num_rx_queues;
 744                 ret = 0;
 745                 break;
 746         case ETHTOOL_GRXFH:
 747                 ret = fm10k_get_rss_hash_opts(interface, cmd);
 748                 break;
 749         default:
 750                 break;
 751         }
 752
 753         return ret;
 754 }
 755
 756 static int fm10k_set_rss_hash_opt(struct fm10k_intfc *interface,
 757                                   struct ethtool_rxnfc *nfc)
 758 {
 759         int rss_ipv4_udp = test_bit(FM10K_FLAG_RSS_FIELD_IPV4_UDP,
 760                                     interface->flags);
 761         int rss_ipv6_udp = test_bit(FM10K_FLAG_RSS_FIELD_IPV6_UDP,
 762                                     interface->flags);
 763
 764         /* RSS does not support anything other than hashing
 765          * to queues on src and dst IPs and ports
 766          */
 767         if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST |
 768                           RXH_L4_B_0_1 | RXH_L4_B_2_3))
 769                 return -EINVAL;
 770
 771         switch (nfc->flow_type) {
 772         case TCP_V4_FLOW:
 773         case TCP_V6_FLOW:
 774                 if (!(nfc->data & RXH_IP_SRC) ||
 775                     !(nfc->data & RXH_IP_DST) ||
 776                     !(nfc->data & RXH_L4_B_0_1) ||
 777                     !(nfc->data & RXH_L4_B_2_3))
 778                         return -EINVAL;
 779                 break;
 780         case UDP_V4_FLOW:
 781                 if (!(nfc->data & RXH_IP_SRC) ||
 782                     !(nfc->data & RXH_IP_DST))
 783                         return -EINVAL;
 784                 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
 785                 case 0:
 786                         clear_bit(FM10K_FLAG_RSS_FIELD_IPV4_UDP,
 787                                   interface->flags);
 788                         break;
 789                 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
 790                         set_bit(FM10K_FLAG_RSS_FIELD_IPV4_UDP,
 791                                 interface->flags);
 792                         break;
 793                 default:
 794                         return -EINVAL;
 795                 }
 796                 break;
 797         case UDP_V6_FLOW:
 798                 if (!(nfc->data & RXH_IP_SRC) ||
 799                     !(nfc->data & RXH_IP_DST))
 800                         return -EINVAL;
 801                 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
 802                 case 0:
 803                         clear_bit(FM10K_FLAG_RSS_FIELD_IPV6_UDP,
 804                                   interface->flags);
 805                         break;
 806                 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
 807                         set_bit(FM10K_FLAG_RSS_FIELD_IPV6_UDP,
 808                                 interface->flags);
 809                         break;
 810                 default:
 811                         return -EINVAL;
 812                 }
 813                 break;
 814         case AH_ESP_V4_FLOW:
 815         case AH_V4_FLOW:
 816         case ESP_V4_FLOW:
 817         case SCTP_V4_FLOW:
 818         case AH_ESP_V6_FLOW:
 819         case AH_V6_FLOW:
 820         case ESP_V6_FLOW:
 821         case SCTP_V6_FLOW:
 822                 if (!(nfc->data & RXH_IP_SRC) ||
 823                     !(nfc->data & RXH_IP_DST) ||
 824                     (nfc->data & RXH_L4_B_0_1) ||
 825                     (nfc->data & RXH_L4_B_2_3))
 826                         return -EINVAL;
 827                 break;
 828         default:
 829                 return -EINVAL;
 830         }
 831
 832         /* If something changed we need to update the MRQC register. Note that
 833          * test_bit() is guaranteed to return strictly 0 or 1, so testing for
 834          * equality is safe.
 835          */
 836         if ((rss_ipv4_udp != test_bit(FM10K_FLAG_RSS_FIELD_IPV4_UDP,
 837                                       interface->flags)) ||
 838             (rss_ipv6_udp != test_bit(FM10K_FLAG_RSS_FIELD_IPV6_UDP,
 839                                       interface->flags))) {
 840                 struct fm10k_hw *hw = &interface->hw;
 841                 bool warn = false;
 842                 u32 mrqc;
 843
 844                 /* Perform hash on these packet types */
 845                 mrqc = FM10K_MRQC_IPV4 |
 846                        FM10K_MRQC_TCP_IPV4 |
 847                        FM10K_MRQC_IPV6 |
 848                        FM10K_MRQC_TCP_IPV6;
 849
 850                 if (test_bit(FM10K_FLAG_RSS_FIELD_IPV4_UDP,
 851                              interface->flags)) {
 852                         mrqc |= FM10K_MRQC_UDP_IPV4;
 853                         warn = true;
 854                 }
 855                 if (test_bit(FM10K_FLAG_RSS_FIELD_IPV6_UDP,
 856                              interface->flags)) {
 857                         mrqc |= FM10K_MRQC_UDP_IPV6;
 858                         warn = true;
 859                 }
 860
 861                 /* If we enable UDP RSS display a warning that this may cause
 862                  * fragmented UDP packets to arrive out of order.
 863                  */
 864                 if (warn)
 865                         netif_warn(interface, drv, interface->netdev,
 866                                    "enabling UDP RSS: fragmented packets may arrive out of order to the stack above\n");
 867
 868                 fm10k_write_reg(hw, FM10K_MRQC(0), mrqc);
 869         }
 870
 871         return 0;
 872 }
 873
 874 static int fm10k_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd)
 875 {
 876         struct fm10k_intfc *interface = netdev_priv(dev);
 877         int ret = -EOPNOTSUPP;
 878
 879         switch (cmd->cmd) {
 880         case ETHTOOL_SRXFH:
 881                 ret = fm10k_set_rss_hash_opt(interface, cmd);
 882                 break;
 883         default:
 884                 break;
 885         }
 886
 887         return ret;
 888 }
 889
 890 static int fm10k_mbx_test(struct fm10k_intfc *interface, u64 *data)
 891 {
 892         struct fm10k_hw *hw = &interface->hw;
 893         struct fm10k_mbx_info *mbx = &hw->mbx;
 894         u32 attr_flag, test_msg[6];
 895         unsigned long timeout;
 896         int err = -EINVAL;
 897
 898         /* For now this is a VF only feature */
 899         if (hw->mac.type != fm10k_mac_vf)
 900                 return 0;
 901
 902         /* loop through both nested and unnested attribute types */
 903         for (attr_flag = BIT(FM10K_TEST_MSG_UNSET);
 904              attr_flag < BIT(2 * FM10K_TEST_MSG_NESTED);
 905              attr_flag += attr_flag) {
 906                 /* generate message to be tested */
 907                 fm10k_tlv_msg_test_create(test_msg, attr_flag);
 908
 909                 fm10k_mbx_lock(interface);
 910                 mbx->test_result = FM10K_NOT_IMPLEMENTED;
 911                 err = mbx->ops.enqueue_tx(hw, mbx, test_msg);
 912                 fm10k_mbx_unlock(interface);
 913
 914                 /* wait up to 1 second for response */
 915                 timeout = jiffies + HZ;
 916                 do {
 917                         if (err < 0)
 918                                 goto err_out;
 919
 920                         usleep_range(500, 1000);
 921
 922                         fm10k_mbx_lock(interface);
 923                         mbx->ops.process(hw, mbx);
 924                         fm10k_mbx_unlock(interface);
 925
 926                         err = mbx->test_result;
 927                         if (!err)
 928                                 break;
 929                 } while (time_is_after_jiffies(timeout));
 930
 931                 /* reporting errors */
 932                 if (err)
 933                         goto err_out;
 934         }
 935
 936 err_out:
 937         *data = err < 0 ? (attr_flag) : (err > 0);
 938         return err;
 939 }
 940
 941 static void fm10k_self_test(struct net_device *dev,
 942                             struct ethtool_test *eth_test, u64 *data)
 943 {
 944         struct fm10k_intfc *interface = netdev_priv(dev);
 945         struct fm10k_hw *hw = &interface->hw;
 946
 947         memset(data, 0, sizeof(*data) * FM10K_TEST_LEN);
 948
 949         if (FM10K_REMOVED(hw->hw_addr)) {
 950                 netif_err(interface, drv, dev,
 951                           "Interface removed - test blocked\n");
 952                 eth_test->flags |= ETH_TEST_FL_FAILED;
 953                 return;
 954         }
 955
 956         if (fm10k_mbx_test(interface, &data[FM10K_TEST_MBX]))
 957                 eth_test->flags |= ETH_TEST_FL_FAILED;
 958 }
 959
 960 static u32 fm10k_get_priv_flags(struct net_device *netdev)
 961 {
 962         return 0;
 963 }
 964
 965 static int fm10k_set_priv_flags(struct net_device *netdev, u32 priv_flags)
 966 {
 967         if (priv_flags >= BIT(FM10K_PRV_FLAG_LEN))
 968                 return -EINVAL;
 969
 970         return 0;
 971 }
 972
 973 static u32 fm10k_get_reta_size(struct net_device __always_unused *netdev)
 974 {
 975         return FM10K_RETA_SIZE * FM10K_RETA_ENTRIES_PER_REG;
 976 }
 977
 978 void fm10k_write_reta(struct fm10k_intfc *interface, const u32 *indir)
 979 {
 980         u16 rss_i = interface->ring_feature[RING_F_RSS].indices;
 981         struct fm10k_hw *hw = &interface->hw;
 982         u32 table[4];
 983         int i, j;
 984
 985         /* record entries to reta table */
 986         for (i = 0; i < FM10K_RETA_SIZE; i++) {
 987                 u32 reta, n;
 988
 989                 /* generate a new table if we weren't given one */
 990                 for (j = 0; j < 4; j++) {
 991                         if (indir)
 992                                 n = indir[4 * i + j];
 993                         else
 994                                 n = ethtool_rxfh_indir_default(4 * i + j,
 995                                                                rss_i);
 996
 997                         table[j] = n;
 998                 }
 999
1000                 reta = table[0] |
1001                         (table[1] << 8) |
1002                         (table[2] << 16) |
1003                         (table[3] << 24);
1004
1005                 if (interface->reta[i] == reta)
1006                         continue;
1007
1008                 interface->reta[i] = reta;
1009                 fm10k_write_reg(hw, FM10K_RETA(0, i), reta);
1010         }
1011 }
1012
1013 static int fm10k_get_reta(struct net_device *netdev, u32 *indir)
1014 {
1015         struct fm10k_intfc *interface = netdev_priv(netdev);
1016         int i;
1017
1018         if (!indir)
1019                 return 0;
1020
1021         for (i = 0; i < FM10K_RETA_SIZE; i++, indir += 4) {
1022                 u32 reta = interface->reta[i];
1023
1024                 indir[0] = (reta << 24) >> 24;
1025                 indir[1] = (reta << 16) >> 24;
1026                 indir[2] = (reta <<  8) >> 24;
1027                 indir[3] = (reta) >> 24;
1028         }
1029
1030         return 0;
1031 }
1032
1033 static int fm10k_set_reta(struct net_device *netdev, const u32 *indir)
1034 {
1035         struct fm10k_intfc *interface = netdev_priv(netdev);
1036         int i;
1037         u16 rss_i;
1038
1039         if (!indir)
1040                 return 0;
1041
1042         /* Verify user input. */
1043         rss_i = interface->ring_feature[RING_F_RSS].indices;
1044         for (i = fm10k_get_reta_size(netdev); i--;) {
1045                 if (indir[i] < rss_i)
1046                         continue;
1047                 return -EINVAL;
1048         }
1049
1050         fm10k_write_reta(interface, indir);
1051
1052         return 0;
1053 }
1054
1055 static u32 fm10k_get_rssrk_size(struct net_device __always_unused *netdev)
1056 {
1057         return FM10K_RSSRK_SIZE * FM10K_RSSRK_ENTRIES_PER_REG;
1058 }
1059
1060 static int fm10k_get_rssh(struct net_device *netdev,
1061                           struct ethtool_rxfh_param *rxfh)
1062 {
1063         struct fm10k_intfc *interface = netdev_priv(netdev);
1064         u8 *key = rxfh->key;
1065         int i, err;
1066
1067         rxfh->hfunc = ETH_RSS_HASH_TOP;
1068
1069         err = fm10k_get_reta(netdev, rxfh->indir);
1070         if (err || !key)
1071                 return err;
1072
1073         for (i = 0; i < FM10K_RSSRK_SIZE; i++, key += 4)
1074                 *(__le32 *)key = cpu_to_le32(interface->rssrk[i]);
1075
1076         return 0;
1077 }
1078
1079 static int fm10k_set_rssh(struct net_device *netdev,
1080                           struct ethtool_rxfh_param *rxfh,
1081                           struct netlink_ext_ack *extack)
1082 {
1083         struct fm10k_intfc *interface = netdev_priv(netdev);
1084         struct fm10k_hw *hw = &interface->hw;
1085         int i, err;
1086
1087         /* We do not allow change in unsupported parameters */
1088         if (rxfh->hfunc != ETH_RSS_HASH_NO_CHANGE &&
1089             rxfh->hfunc != ETH_RSS_HASH_TOP)
1090                 return -EOPNOTSUPP;
1091
1092         err = fm10k_set_reta(netdev, rxfh->indir);
1093         if (err || !rxfh->key)
1094                 return err;
1095
1096         for (i = 0; i < FM10K_RSSRK_SIZE; i++, rxfh->key += 4) {
1097                 u32 rssrk = le32_to_cpu(*(__le32 *)rxfh->key);
1098
1099                 if (interface->rssrk[i] == rssrk)
1100                         continue;
1101
1102                 interface->rssrk[i] = rssrk;
1103                 fm10k_write_reg(hw, FM10K_RSSRK(0, i), rssrk);
1104         }
1105
1106         return 0;
1107 }
1108
1109 static unsigned int fm10k_max_channels(struct net_device *dev)
1110 {
1111         struct fm10k_intfc *interface = netdev_priv(dev);
1112         unsigned int max_combined = interface->hw.mac.max_queues;
1113         u8 tcs = netdev_get_num_tc(dev);
1114
1115         /* For QoS report channels per traffic class */
1116         if (tcs > 1)
1117                 max_combined = BIT((fls(max_combined / tcs) - 1));
1118
1119         return max_combined;
1120 }
1121
1122 static void fm10k_get_channels(struct net_device *dev,
1123                                struct ethtool_channels *ch)
1124 {
1125         struct fm10k_intfc *interface = netdev_priv(dev);
1126
1127         /* report maximum channels */
1128         ch->max_combined = fm10k_max_channels(dev);
1129
1130         /* report info for other vector */
1131         ch->max_other = NON_Q_VECTORS;
1132         ch->other_count = ch->max_other;
1133
1134         /* record RSS queues */
1135         ch->combined_count = interface->ring_feature[RING_F_RSS].indices;
1136 }
1137
1138 static int fm10k_set_channels(struct net_device *dev,
1139                               struct ethtool_channels *ch)
1140 {
1141         struct fm10k_intfc *interface = netdev_priv(dev);
1142         unsigned int count = ch->combined_count;
1143
1144         /* verify they are not requesting separate vectors */
1145         if (!count || ch->rx_count || ch->tx_count)
1146                 return -EINVAL;
1147
1148         /* verify other_count has not changed */
1149         if (ch->other_count != NON_Q_VECTORS)
1150                 return -EINVAL;
1151
1152         /* verify the number of channels does not exceed hardware limits */
1153         if (count > fm10k_max_channels(dev))
1154                 return -EINVAL;
1155
1156         interface->ring_feature[RING_F_RSS].limit = count;
1157
1158         /* use setup TC to update any traffic class queue mapping */
1159         return fm10k_setup_tc(dev, netdev_get_num_tc(dev));
1160 }
1161
1162 static const struct ethtool_ops fm10k_ethtool_ops = {
1163         .supported_coalesce_params = ETHTOOL_COALESCE_USECS |
1164                                      ETHTOOL_COALESCE_USE_ADAPTIVE,
1165         .get_strings            = fm10k_get_strings,
1166         .get_sset_count         = fm10k_get_sset_count,
1167         .get_ethtool_stats      = fm10k_get_ethtool_stats,
1168         .get_drvinfo            = fm10k_get_drvinfo,
1169         .get_link               = ethtool_op_get_link,
1170         .get_pauseparam         = fm10k_get_pauseparam,
1171         .set_pauseparam         = fm10k_set_pauseparam,
1172         .get_msglevel           = fm10k_get_msglevel,
1173         .set_msglevel           = fm10k_set_msglevel,
1174         .get_ringparam          = fm10k_get_ringparam,
1175         .set_ringparam          = fm10k_set_ringparam,
1176         .get_coalesce           = fm10k_get_coalesce,
1177         .set_coalesce           = fm10k_set_coalesce,
1178         .get_rxnfc              = fm10k_get_rxnfc,
1179         .set_rxnfc              = fm10k_set_rxnfc,
1180         .get_regs               = fm10k_get_regs,
1181         .get_regs_len           = fm10k_get_regs_len,
1182         .self_test              = fm10k_self_test,
1183         .get_priv_flags         = fm10k_get_priv_flags,
1184         .set_priv_flags         = fm10k_set_priv_flags,
1185         .get_rxfh_indir_size    = fm10k_get_reta_size,
1186         .get_rxfh_key_size      = fm10k_get_rssrk_size,
1187         .get_rxfh               = fm10k_get_rssh,
1188         .set_rxfh               = fm10k_set_rssh,
1189         .get_channels           = fm10k_get_channels,
1190         .set_channels           = fm10k_set_channels,
1191         .get_ts_info            = ethtool_op_get_ts_info,
1192 };
1193
1194 void fm10k_set_ethtool_ops(struct net_device *dev)
1195 {
1196         dev->ethtool_ops = &fm10k_ethtool_ops;
1197 }