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

   1 /* Intel Ethernet Switch Host Interface Driver
   2  * Copyright(c) 2013 - 2014 Intel Corporation.
   3  *
   4  * This program is free software; you can redistribute it and/or modify it
   5  * under the terms and conditions of the GNU General Public License,
   6  * version 2, as published by the Free Software Foundation.
   7  *
   8  * This program is distributed in the hope it will be useful, but WITHOUT
   9  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  10  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  11  * more details.
  12  *
  13  * The full GNU General Public License is included in this distribution in
  14  * the file called "COPYING".
  15  *
  16  * Contact Information:
  17  * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
  18  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  19  */
  20
  21 #include <linux/vmalloc.h>
  22
  23 #include "fm10k.h"
  24
  25 struct fm10k_stats {
  26         char stat_string[ETH_GSTRING_LEN];
  27         int sizeof_stat;
  28         int stat_offset;
  29 };
  30
  31 #define FM10K_NETDEV_STAT(_net_stat) { \
  32         .stat_string = #_net_stat, \
  33         .sizeof_stat = FIELD_SIZEOF(struct net_device_stats, _net_stat), \
  34         .stat_offset = offsetof(struct net_device_stats, _net_stat) \
  35 }
  36
  37 static const struct fm10k_stats fm10k_gstrings_net_stats[] = {
  38         FM10K_NETDEV_STAT(tx_packets),
  39         FM10K_NETDEV_STAT(tx_bytes),
  40         FM10K_NETDEV_STAT(tx_errors),
  41         FM10K_NETDEV_STAT(rx_packets),
  42         FM10K_NETDEV_STAT(rx_bytes),
  43         FM10K_NETDEV_STAT(rx_errors),
  44         FM10K_NETDEV_STAT(rx_dropped),
  45
  46         /* detailed Rx errors */
  47         FM10K_NETDEV_STAT(rx_length_errors),
  48         FM10K_NETDEV_STAT(rx_crc_errors),
  49         FM10K_NETDEV_STAT(rx_fifo_errors),
  50 };
  51
  52 #define FM10K_NETDEV_STATS_LEN  ARRAY_SIZE(fm10k_gstrings_net_stats)
  53
  54 #define FM10K_STAT(_name, _stat) { \
  55         .stat_string = _name, \
  56         .sizeof_stat = FIELD_SIZEOF(struct fm10k_intfc, _stat), \
  57         .stat_offset = offsetof(struct fm10k_intfc, _stat) \
  58 }
  59
  60 static const struct fm10k_stats fm10k_gstrings_stats[] = {
  61         FM10K_STAT("tx_restart_queue", restart_queue),
  62         FM10K_STAT("tx_busy", tx_busy),
  63         FM10K_STAT("tx_csum_errors", tx_csum_errors),
  64         FM10K_STAT("rx_alloc_failed", alloc_failed),
  65         FM10K_STAT("rx_csum_errors", rx_csum_errors),
  66         FM10K_STAT("rx_errors", rx_errors),
  67
  68         FM10K_STAT("tx_packets_nic", tx_packets_nic),
  69         FM10K_STAT("tx_bytes_nic", tx_bytes_nic),
  70         FM10K_STAT("rx_packets_nic", rx_packets_nic),
  71         FM10K_STAT("rx_bytes_nic", rx_bytes_nic),
  72         FM10K_STAT("rx_drops_nic", rx_drops_nic),
  73         FM10K_STAT("rx_overrun_pf", rx_overrun_pf),
  74         FM10K_STAT("rx_overrun_vf", rx_overrun_vf),
  75
  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         FM10K_STAT("swapi_status", hw.swapi.status),
  86         FM10K_STAT("mac_rules_used", hw.swapi.mac.used),
  87         FM10K_STAT("mac_rules_avail", hw.swapi.mac.avail),
  88
  89         FM10K_STAT("mbx_tx_busy", hw.mbx.tx_busy),
  90         FM10K_STAT("mbx_tx_dropped", hw.mbx.tx_dropped),
  91         FM10K_STAT("mbx_tx_messages", hw.mbx.tx_messages),
  92         FM10K_STAT("mbx_tx_dwords", hw.mbx.tx_dwords),
  93         FM10K_STAT("mbx_rx_messages", hw.mbx.rx_messages),
  94         FM10K_STAT("mbx_rx_dwords", hw.mbx.rx_dwords),
  95         FM10K_STAT("mbx_rx_parse_err", hw.mbx.rx_parse_err),
  96
  97         FM10K_STAT("tx_hwtstamp_timeouts", tx_hwtstamp_timeouts),
  98 };
  99
 100 #define FM10K_GLOBAL_STATS_LEN ARRAY_SIZE(fm10k_gstrings_stats)
 101
 102 #define FM10K_QUEUE_STATS_LEN \
 103           (MAX_QUEUES * 2 * (sizeof(struct fm10k_queue_stats) / sizeof(u64)))
 104
 105 #define FM10K_STATS_LEN (FM10K_GLOBAL_STATS_LEN + \
 106                          FM10K_NETDEV_STATS_LEN + \
 107                          FM10K_QUEUE_STATS_LEN)
 108
 109 static const char fm10k_gstrings_test[][ETH_GSTRING_LEN] = {
 110         "Mailbox test (on/offline)"
 111 };
 112
 113 #define FM10K_TEST_LEN (sizeof(fm10k_gstrings_test) / ETH_GSTRING_LEN)
 114
 115 enum fm10k_self_test_types {
 116         FM10K_TEST_MBX,
 117         FM10K_TEST_MAX = FM10K_TEST_LEN
 118 };
 119
 120 static void fm10k_get_strings(struct net_device *dev, u32 stringset,
 121                               u8 *data)
 122 {
 123         char *p = (char *)data;
 124         int i;
 125
 126         switch (stringset) {
 127         case ETH_SS_TEST:
 128                 memcpy(data, *fm10k_gstrings_test,
 129                        FM10K_TEST_LEN * ETH_GSTRING_LEN);
 130                 break;
 131         case ETH_SS_STATS:
 132                 for (i = 0; i < FM10K_NETDEV_STATS_LEN; i++) {
 133                         memcpy(p, fm10k_gstrings_net_stats[i].stat_string,
 134                                ETH_GSTRING_LEN);
 135                         p += ETH_GSTRING_LEN;
 136                 }
 137                 for (i = 0; i < FM10K_GLOBAL_STATS_LEN; i++) {
 138                         memcpy(p, fm10k_gstrings_stats[i].stat_string,
 139                                ETH_GSTRING_LEN);
 140                         p += ETH_GSTRING_LEN;
 141                 }
 142
 143                 for (i = 0; i < MAX_QUEUES; i++) {
 144                         sprintf(p, "tx_queue_%u_packets", i);
 145                         p += ETH_GSTRING_LEN;
 146                         sprintf(p, "tx_queue_%u_bytes", i);
 147                         p += ETH_GSTRING_LEN;
 148                         sprintf(p, "rx_queue_%u_packets", i);
 149                         p += ETH_GSTRING_LEN;
 150                         sprintf(p, "rx_queue_%u_bytes", i);
 151                         p += ETH_GSTRING_LEN;
 152                 }
 153                 break;
 154         }
 155 }
 156
 157 static int fm10k_get_sset_count(struct net_device *dev, int sset)
 158 {
 159         switch (sset) {
 160         case ETH_SS_TEST:
 161                 return FM10K_TEST_LEN;
 162         case ETH_SS_STATS:
 163                 return FM10K_STATS_LEN;
 164         default:
 165                 return -EOPNOTSUPP;
 166         }
 167 }
 168
 169 static void fm10k_get_ethtool_stats(struct net_device *netdev,
 170                                     struct ethtool_stats *stats, u64 *data)
 171 {
 172         const int stat_count = sizeof(struct fm10k_queue_stats) / sizeof(u64);
 173         struct fm10k_intfc *interface = netdev_priv(netdev);
 174         struct net_device_stats *net_stats = &netdev->stats;
 175         char *p;
 176         int i, j;
 177
 178         fm10k_update_stats(interface);
 179
 180         for (i = 0; i < FM10K_NETDEV_STATS_LEN; i++) {
 181                 p = (char *)net_stats + fm10k_gstrings_net_stats[i].stat_offset;
 182                 *(data++) = (fm10k_gstrings_net_stats[i].sizeof_stat ==
 183                         sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
 184         }
 185
 186         for (i = 0; i < FM10K_GLOBAL_STATS_LEN; i++) {
 187                 p = (char *)interface + fm10k_gstrings_stats[i].stat_offset;
 188                 *(data++) = (fm10k_gstrings_stats[i].sizeof_stat ==
 189                         sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
 190         }
 191
 192         for (i = 0; i < MAX_QUEUES; i++) {
 193                 struct fm10k_ring *ring;
 194                 u64 *queue_stat;
 195
 196                 ring = interface->tx_ring[i];
 197                 if (ring)
 198                         queue_stat = (u64 *)&ring->stats;
 199                 for (j = 0; j < stat_count; j++)
 200                         *(data++) = ring ? queue_stat[j] : 0;
 201
 202                 ring = interface->rx_ring[i];
 203                 if (ring)
 204                         queue_stat = (u64 *)&ring->stats;
 205                 for (j = 0; j < stat_count; j++)
 206                         *(data++) = ring ? queue_stat[j] : 0;
 207         }
 208 }
 209
 210 /* If function below adds more registers this define needs to be updated */
 211 #define FM10K_REGS_LEN_Q 29
 212
 213 static void fm10k_get_reg_q(struct fm10k_hw *hw, u32 *buff, int i)
 214 {
 215         int idx = 0;
 216
 217         buff[idx++] = fm10k_read_reg(hw, FM10K_RDBAL(i));
 218         buff[idx++] = fm10k_read_reg(hw, FM10K_RDBAH(i));
 219         buff[idx++] = fm10k_read_reg(hw, FM10K_RDLEN(i));
 220         buff[idx++] = fm10k_read_reg(hw, FM10K_TPH_RXCTRL(i));
 221         buff[idx++] = fm10k_read_reg(hw, FM10K_RDH(i));
 222         buff[idx++] = fm10k_read_reg(hw, FM10K_RDT(i));
 223         buff[idx++] = fm10k_read_reg(hw, FM10K_RXQCTL(i));
 224         buff[idx++] = fm10k_read_reg(hw, FM10K_RXDCTL(i));
 225         buff[idx++] = fm10k_read_reg(hw, FM10K_RXINT(i));
 226         buff[idx++] = fm10k_read_reg(hw, FM10K_SRRCTL(i));
 227         buff[idx++] = fm10k_read_reg(hw, FM10K_QPRC(i));
 228         buff[idx++] = fm10k_read_reg(hw, FM10K_QPRDC(i));
 229         buff[idx++] = fm10k_read_reg(hw, FM10K_QBRC_L(i));
 230         buff[idx++] = fm10k_read_reg(hw, FM10K_QBRC_H(i));
 231         buff[idx++] = fm10k_read_reg(hw, FM10K_TDBAL(i));
 232         buff[idx++] = fm10k_read_reg(hw, FM10K_TDBAH(i));
 233         buff[idx++] = fm10k_read_reg(hw, FM10K_TDLEN(i));
 234         buff[idx++] = fm10k_read_reg(hw, FM10K_TPH_TXCTRL(i));
 235         buff[idx++] = fm10k_read_reg(hw, FM10K_TDH(i));
 236         buff[idx++] = fm10k_read_reg(hw, FM10K_TDT(i));
 237         buff[idx++] = fm10k_read_reg(hw, FM10K_TXDCTL(i));
 238         buff[idx++] = fm10k_read_reg(hw, FM10K_TXQCTL(i));
 239         buff[idx++] = fm10k_read_reg(hw, FM10K_TXINT(i));
 240         buff[idx++] = fm10k_read_reg(hw, FM10K_QPTC(i));
 241         buff[idx++] = fm10k_read_reg(hw, FM10K_QBTC_L(i));
 242         buff[idx++] = fm10k_read_reg(hw, FM10K_QBTC_H(i));
 243         buff[idx++] = fm10k_read_reg(hw, FM10K_TQDLOC(i));
 244         buff[idx++] = fm10k_read_reg(hw, FM10K_TX_SGLORT(i));
 245         buff[idx++] = fm10k_read_reg(hw, FM10K_PFVTCTL(i));
 246
 247         BUG_ON(idx != FM10K_REGS_LEN_Q);
 248 }
 249
 250 /* If function above adds more registers this define needs to be updated */
 251 #define FM10K_REGS_LEN_VSI 43
 252
 253 static void fm10k_get_reg_vsi(struct fm10k_hw *hw, u32 *buff, int i)
 254 {
 255         int idx = 0, j;
 256
 257         buff[idx++] = fm10k_read_reg(hw, FM10K_MRQC(i));
 258         for (j = 0; j < 10; j++)
 259                 buff[idx++] = fm10k_read_reg(hw, FM10K_RSSRK(i, j));
 260         for (j = 0; j < 32; j++)
 261                 buff[idx++] = fm10k_read_reg(hw, FM10K_RETA(i, j));
 262
 263         BUG_ON(idx != FM10K_REGS_LEN_VSI);
 264 }
 265
 266 static void fm10k_get_regs(struct net_device *netdev,
 267                            struct ethtool_regs *regs, void *p)
 268 {
 269         struct fm10k_intfc *interface = netdev_priv(netdev);
 270         struct fm10k_hw *hw = &interface->hw;
 271         u32 *buff = p;
 272         u16 i;
 273
 274         regs->version = (1 << 24) | (hw->revision_id << 16) | hw->device_id;
 275
 276         switch (hw->mac.type) {
 277         case fm10k_mac_pf:
 278                 /* General PF Registers */
 279                 *(buff++) = fm10k_read_reg(hw, FM10K_CTRL);
 280                 *(buff++) = fm10k_read_reg(hw, FM10K_CTRL_EXT);
 281                 *(buff++) = fm10k_read_reg(hw, FM10K_GCR);
 282                 *(buff++) = fm10k_read_reg(hw, FM10K_GCR_EXT);
 283
 284                 for (i = 0; i < 8; i++) {
 285                         *(buff++) = fm10k_read_reg(hw, FM10K_DGLORTMAP(i));
 286                         *(buff++) = fm10k_read_reg(hw, FM10K_DGLORTDEC(i));
 287                 }
 288
 289                 for (i = 0; i < 65; i++) {
 290                         fm10k_get_reg_vsi(hw, buff, i);
 291                         buff += FM10K_REGS_LEN_VSI;
 292                 }
 293
 294                 *(buff++) = fm10k_read_reg(hw, FM10K_DMA_CTRL);
 295                 *(buff++) = fm10k_read_reg(hw, FM10K_DMA_CTRL2);
 296
 297                 for (i = 0; i < FM10K_MAX_QUEUES_PF; i++) {
 298                         fm10k_get_reg_q(hw, buff, i);
 299                         buff += FM10K_REGS_LEN_Q;
 300                 }
 301
 302                 *(buff++) = fm10k_read_reg(hw, FM10K_TPH_CTRL);
 303
 304                 for (i = 0; i < 8; i++)
 305                         *(buff++) = fm10k_read_reg(hw, FM10K_INT_MAP(i));
 306
 307                 /* Interrupt Throttling Registers */
 308                 for (i = 0; i < 130; i++)
 309                         *(buff++) = fm10k_read_reg(hw, FM10K_ITR(i));
 310
 311                 break;
 312         case fm10k_mac_vf:
 313                 /* General VF registers */
 314                 *(buff++) = fm10k_read_reg(hw, FM10K_VFCTRL);
 315                 *(buff++) = fm10k_read_reg(hw, FM10K_VFINT_MAP);
 316                 *(buff++) = fm10k_read_reg(hw, FM10K_VFSYSTIME);
 317
 318                 /* Interrupt Throttling Registers */
 319                 for (i = 0; i < 8; i++)
 320                         *(buff++) = fm10k_read_reg(hw, FM10K_VFITR(i));
 321
 322                 fm10k_get_reg_vsi(hw, buff, 0);
 323                 buff += FM10K_REGS_LEN_VSI;
 324
 325                 for (i = 0; i < FM10K_MAX_QUEUES_POOL; i++) {
 326                         if (i < hw->mac.max_queues)
 327                                 fm10k_get_reg_q(hw, buff, i);
 328                         else
 329                                 memset(buff, 0, sizeof(u32) * FM10K_REGS_LEN_Q);
 330                         buff += FM10K_REGS_LEN_Q;
 331                 }
 332
 333                 break;
 334         default:
 335                 return;
 336         }
 337 }
 338
 339 /* If function above adds more registers these define need to be updated */
 340 #define FM10K_REGS_LEN_PF \
 341 (162 + (65 * FM10K_REGS_LEN_VSI) + (FM10K_MAX_QUEUES_PF * FM10K_REGS_LEN_Q))
 342 #define FM10K_REGS_LEN_VF \
 343 (11 + FM10K_REGS_LEN_VSI + (FM10K_MAX_QUEUES_POOL * FM10K_REGS_LEN_Q))
 344
 345 static int fm10k_get_regs_len(struct net_device *netdev)
 346 {
 347         struct fm10k_intfc *interface = netdev_priv(netdev);
 348         struct fm10k_hw *hw = &interface->hw;
 349
 350         switch (hw->mac.type) {
 351         case fm10k_mac_pf:
 352                 return FM10K_REGS_LEN_PF * sizeof(u32);
 353         case fm10k_mac_vf:
 354                 return FM10K_REGS_LEN_VF * sizeof(u32);
 355         default:
 356                 return 0;
 357         }
 358 }
 359
 360 static void fm10k_get_drvinfo(struct net_device *dev,
 361                               struct ethtool_drvinfo *info)
 362 {
 363         struct fm10k_intfc *interface = netdev_priv(dev);
 364
 365         strncpy(info->driver, fm10k_driver_name,
 366                 sizeof(info->driver) - 1);
 367         strncpy(info->version, fm10k_driver_version,
 368                 sizeof(info->version) - 1);
 369         strncpy(info->bus_info, pci_name(interface->pdev),
 370                 sizeof(info->bus_info) - 1);
 371
 372         info->n_stats = FM10K_STATS_LEN;
 373
 374         info->regdump_len = fm10k_get_regs_len(dev);
 375 }
 376
 377 static void fm10k_get_pauseparam(struct net_device *dev,
 378                                  struct ethtool_pauseparam *pause)
 379 {
 380         struct fm10k_intfc *interface = netdev_priv(dev);
 381
 382         /* record fixed values for autoneg and tx pause */
 383         pause->autoneg = 0;
 384         pause->tx_pause = 1;
 385
 386         pause->rx_pause = interface->rx_pause ? 1 : 0;
 387 }
 388
 389 static int fm10k_set_pauseparam(struct net_device *dev,
 390                                 struct ethtool_pauseparam *pause)
 391 {
 392         struct fm10k_intfc *interface = netdev_priv(dev);
 393         struct fm10k_hw *hw = &interface->hw;
 394
 395         if (pause->autoneg || !pause->tx_pause)
 396                 return -EINVAL;
 397
 398         /* we can only support pause on the PF to avoid head-of-line blocking */
 399         if (hw->mac.type == fm10k_mac_pf)
 400                 interface->rx_pause = pause->rx_pause ? ~0 : 0;
 401         else if (pause->rx_pause)
 402                 return -EINVAL;
 403
 404         if (netif_running(dev))
 405                 fm10k_update_rx_drop_en(interface);
 406
 407         return 0;
 408 }
 409
 410 static u32 fm10k_get_msglevel(struct net_device *netdev)
 411 {
 412         struct fm10k_intfc *interface = netdev_priv(netdev);
 413
 414         return interface->msg_enable;
 415 }
 416
 417 static void fm10k_set_msglevel(struct net_device *netdev, u32 data)
 418 {
 419         struct fm10k_intfc *interface = netdev_priv(netdev);
 420
 421         interface->msg_enable = data;
 422 }
 423
 424 static void fm10k_get_ringparam(struct net_device *netdev,
 425                                 struct ethtool_ringparam *ring)
 426 {
 427         struct fm10k_intfc *interface = netdev_priv(netdev);
 428
 429         ring->rx_max_pending = FM10K_MAX_RXD;
 430         ring->tx_max_pending = FM10K_MAX_TXD;
 431         ring->rx_mini_max_pending = 0;
 432         ring->rx_jumbo_max_pending = 0;
 433         ring->rx_pending = interface->rx_ring_count;
 434         ring->tx_pending = interface->tx_ring_count;
 435         ring->rx_mini_pending = 0;
 436         ring->rx_jumbo_pending = 0;
 437 }
 438
 439 static int fm10k_set_ringparam(struct net_device *netdev,
 440                                struct ethtool_ringparam *ring)
 441 {
 442         struct fm10k_intfc *interface = netdev_priv(netdev);
 443         struct fm10k_ring *temp_ring;
 444         int i, err = 0;
 445         u32 new_rx_count, new_tx_count;
 446
 447         if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
 448                 return -EINVAL;
 449
 450         new_tx_count = clamp_t(u32, ring->tx_pending,
 451                                FM10K_MIN_TXD, FM10K_MAX_TXD);
 452         new_tx_count = ALIGN(new_tx_count, FM10K_REQ_TX_DESCRIPTOR_MULTIPLE);
 453
 454         new_rx_count = clamp_t(u32, ring->rx_pending,
 455                                FM10K_MIN_RXD, FM10K_MAX_RXD);
 456         new_rx_count = ALIGN(new_rx_count, FM10K_REQ_RX_DESCRIPTOR_MULTIPLE);
 457
 458         if ((new_tx_count == interface->tx_ring_count) &&
 459             (new_rx_count == interface->rx_ring_count)) {
 460                 /* nothing to do */
 461                 return 0;
 462         }
 463
 464         while (test_and_set_bit(__FM10K_RESETTING, &interface->state))
 465                 usleep_range(1000, 2000);
 466
 467         if (!netif_running(interface->netdev)) {
 468                 for (i = 0; i < interface->num_tx_queues; i++)
 469                         interface->tx_ring[i]->count = new_tx_count;
 470                 for (i = 0; i < interface->num_rx_queues; i++)
 471                         interface->rx_ring[i]->count = new_rx_count;
 472                 interface->tx_ring_count = new_tx_count;
 473                 interface->rx_ring_count = new_rx_count;
 474                 goto clear_reset;
 475         }
 476
 477         /* allocate temporary buffer to store rings in */
 478         i = max_t(int, interface->num_tx_queues, interface->num_rx_queues);
 479         temp_ring = vmalloc(i * sizeof(struct fm10k_ring));
 480
 481         if (!temp_ring) {
 482                 err = -ENOMEM;
 483                 goto clear_reset;
 484         }
 485
 486         fm10k_down(interface);
 487
 488         /* Setup new Tx resources and free the old Tx resources in that order.
 489          * We can then assign the new resources to the rings via a memcpy.
 490          * The advantage to this approach is that we are guaranteed to still
 491          * have resources even in the case of an allocation failure.
 492          */
 493         if (new_tx_count != interface->tx_ring_count) {
 494                 for (i = 0; i < interface->num_tx_queues; i++) {
 495                         memcpy(&temp_ring[i], interface->tx_ring[i],
 496                                sizeof(struct fm10k_ring));
 497
 498                         temp_ring[i].count = new_tx_count;
 499                         err = fm10k_setup_tx_resources(&temp_ring[i]);
 500                         if (err) {
 501                                 while (i) {
 502                                         i--;
 503                                         fm10k_free_tx_resources(&temp_ring[i]);
 504                                 }
 505                                 goto err_setup;
 506                         }
 507                 }
 508
 509                 for (i = 0; i < interface->num_tx_queues; i++) {
 510                         fm10k_free_tx_resources(interface->tx_ring[i]);
 511
 512                         memcpy(interface->tx_ring[i], &temp_ring[i],
 513                                sizeof(struct fm10k_ring));
 514                 }
 515
 516                 interface->tx_ring_count = new_tx_count;
 517         }
 518
 519         /* Repeat the process for the Rx rings if needed */
 520         if (new_rx_count != interface->rx_ring_count) {
 521                 for (i = 0; i < interface->num_rx_queues; i++) {
 522                         memcpy(&temp_ring[i], interface->rx_ring[i],
 523                                sizeof(struct fm10k_ring));
 524
 525                         temp_ring[i].count = new_rx_count;
 526                         err = fm10k_setup_rx_resources(&temp_ring[i]);
 527                         if (err) {
 528                                 while (i) {
 529                                         i--;
 530                                         fm10k_free_rx_resources(&temp_ring[i]);
 531                                 }
 532                                 goto err_setup;
 533                         }
 534                 }
 535
 536                 for (i = 0; i < interface->num_rx_queues; i++) {
 537                         fm10k_free_rx_resources(interface->rx_ring[i]);
 538
 539                         memcpy(interface->rx_ring[i], &temp_ring[i],
 540                                sizeof(struct fm10k_ring));
 541                 }
 542
 543                 interface->rx_ring_count = new_rx_count;
 544         }
 545
 546 err_setup:
 547         fm10k_up(interface);
 548         vfree(temp_ring);
 549 clear_reset:
 550         clear_bit(__FM10K_RESETTING, &interface->state);
 551         return err;
 552 }
 553
 554 static int fm10k_get_coalesce(struct net_device *dev,
 555                               struct ethtool_coalesce *ec)
 556 {
 557         struct fm10k_intfc *interface = netdev_priv(dev);
 558
 559         ec->use_adaptive_tx_coalesce =
 560                 !!(interface->tx_itr & FM10K_ITR_ADAPTIVE);
 561         ec->tx_coalesce_usecs = interface->tx_itr & ~FM10K_ITR_ADAPTIVE;
 562
 563         ec->use_adaptive_rx_coalesce =
 564                 !!(interface->rx_itr & FM10K_ITR_ADAPTIVE);
 565         ec->rx_coalesce_usecs = interface->rx_itr & ~FM10K_ITR_ADAPTIVE;
 566
 567         return 0;
 568 }
 569
 570 static int fm10k_set_coalesce(struct net_device *dev,
 571                               struct ethtool_coalesce *ec)
 572 {
 573         struct fm10k_intfc *interface = netdev_priv(dev);
 574         struct fm10k_q_vector *qv;
 575         u16 tx_itr, rx_itr;
 576         int i;
 577
 578         /* verify limits */
 579         if ((ec->rx_coalesce_usecs > FM10K_ITR_MAX) ||
 580             (ec->tx_coalesce_usecs > FM10K_ITR_MAX))
 581                 return -EINVAL;
 582
 583         /* record settings */
 584         tx_itr = ec->tx_coalesce_usecs;
 585         rx_itr = ec->rx_coalesce_usecs;
 586
 587         /* set initial values for adaptive ITR */
 588         if (ec->use_adaptive_tx_coalesce)
 589                 tx_itr = FM10K_ITR_ADAPTIVE | FM10K_ITR_10K;
 590
 591         if (ec->use_adaptive_rx_coalesce)
 592                 rx_itr = FM10K_ITR_ADAPTIVE | FM10K_ITR_20K;
 593
 594         /* update interface */
 595         interface->tx_itr = tx_itr;
 596         interface->rx_itr = rx_itr;
 597
 598         /* update q_vectors */
 599         for (i = 0; i < interface->num_q_vectors; i++) {
 600                 qv = interface->q_vector[i];
 601                 qv->tx.itr = tx_itr;
 602                 qv->rx.itr = rx_itr;
 603         }
 604
 605         return 0;
 606 }
 607
 608 static int fm10k_get_rss_hash_opts(struct fm10k_intfc *interface,
 609                                    struct ethtool_rxnfc *cmd)
 610 {
 611         cmd->data = 0;
 612
 613         /* Report default options for RSS on fm10k */
 614         switch (cmd->flow_type) {
 615         case TCP_V4_FLOW:
 616         case TCP_V6_FLOW:
 617                 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
 618                 /* fall through */
 619         case UDP_V4_FLOW:
 620                 if (interface->flags & FM10K_FLAG_RSS_FIELD_IPV4_UDP)
 621                         cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
 622                 /* fall through */
 623         case SCTP_V4_FLOW:
 624         case SCTP_V6_FLOW:
 625         case AH_ESP_V4_FLOW:
 626         case AH_ESP_V6_FLOW:
 627         case AH_V4_FLOW:
 628         case AH_V6_FLOW:
 629         case ESP_V4_FLOW:
 630         case ESP_V6_FLOW:
 631         case IPV4_FLOW:
 632         case IPV6_FLOW:
 633                 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
 634                 break;
 635         case UDP_V6_FLOW:
 636                 if (interface->flags & FM10K_FLAG_RSS_FIELD_IPV6_UDP)
 637                         cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
 638                 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
 639                 break;
 640         default:
 641                 return -EINVAL;
 642         }
 643
 644         return 0;
 645 }
 646
 647 static int fm10k_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd,
 648                            u32 *rule_locs)
 649 {
 650         struct fm10k_intfc *interface = netdev_priv(dev);
 651         int ret = -EOPNOTSUPP;
 652
 653         switch (cmd->cmd) {
 654         case ETHTOOL_GRXRINGS:
 655                 cmd->data = interface->num_rx_queues;
 656                 ret = 0;
 657                 break;
 658         case ETHTOOL_GRXFH:
 659                 ret = fm10k_get_rss_hash_opts(interface, cmd);
 660                 break;
 661         default:
 662                 break;
 663         }
 664
 665         return ret;
 666 }
 667
 668 #define UDP_RSS_FLAGS (FM10K_FLAG_RSS_FIELD_IPV4_UDP | \
 669                        FM10K_FLAG_RSS_FIELD_IPV6_UDP)
 670 static int fm10k_set_rss_hash_opt(struct fm10k_intfc *interface,
 671                                   struct ethtool_rxnfc *nfc)
 672 {
 673         u32 flags = interface->flags;
 674
 675         /* RSS does not support anything other than hashing
 676          * to queues on src and dst IPs and ports
 677          */
 678         if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST |
 679                           RXH_L4_B_0_1 | RXH_L4_B_2_3))
 680                 return -EINVAL;
 681
 682         switch (nfc->flow_type) {
 683         case TCP_V4_FLOW:
 684         case TCP_V6_FLOW:
 685                 if (!(nfc->data & RXH_IP_SRC) ||
 686                     !(nfc->data & RXH_IP_DST) ||
 687                     !(nfc->data & RXH_L4_B_0_1) ||
 688                     !(nfc->data & RXH_L4_B_2_3))
 689                         return -EINVAL;
 690                 break;
 691         case UDP_V4_FLOW:
 692                 if (!(nfc->data & RXH_IP_SRC) ||
 693                     !(nfc->data & RXH_IP_DST))
 694                         return -EINVAL;
 695                 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
 696                 case 0:
 697                         flags &= ~FM10K_FLAG_RSS_FIELD_IPV4_UDP;
 698                         break;
 699                 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
 700                         flags |= FM10K_FLAG_RSS_FIELD_IPV4_UDP;
 701                         break;
 702                 default:
 703                         return -EINVAL;
 704                 }
 705                 break;
 706         case UDP_V6_FLOW:
 707                 if (!(nfc->data & RXH_IP_SRC) ||
 708                     !(nfc->data & RXH_IP_DST))
 709                         return -EINVAL;
 710                 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
 711                 case 0:
 712                         flags &= ~FM10K_FLAG_RSS_FIELD_IPV6_UDP;
 713                         break;
 714                 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
 715                         flags |= FM10K_FLAG_RSS_FIELD_IPV6_UDP;
 716                         break;
 717                 default:
 718                         return -EINVAL;
 719                 }
 720                 break;
 721         case AH_ESP_V4_FLOW:
 722         case AH_V4_FLOW:
 723         case ESP_V4_FLOW:
 724         case SCTP_V4_FLOW:
 725         case AH_ESP_V6_FLOW:
 726         case AH_V6_FLOW:
 727         case ESP_V6_FLOW:
 728         case SCTP_V6_FLOW:
 729                 if (!(nfc->data & RXH_IP_SRC) ||
 730                     !(nfc->data & RXH_IP_DST) ||
 731                     (nfc->data & RXH_L4_B_0_1) ||
 732                     (nfc->data & RXH_L4_B_2_3))
 733                         return -EINVAL;
 734                 break;
 735         default:
 736                 return -EINVAL;
 737         }
 738
 739         /* if we changed something we need to update flags */
 740         if (flags != interface->flags) {
 741                 struct fm10k_hw *hw = &interface->hw;
 742                 u32 mrqc;
 743
 744                 if ((flags & UDP_RSS_FLAGS) &&
 745                     !(interface->flags & UDP_RSS_FLAGS))
 746                         netif_warn(interface, drv, interface->netdev,
 747                                    "enabling UDP RSS: fragmented packets may arrive out of order to the stack above\n");
 748
 749                 interface->flags = flags;
 750
 751                 /* Perform hash on these packet types */
 752                 mrqc = FM10K_MRQC_IPV4 |
 753                        FM10K_MRQC_TCP_IPV4 |
 754                        FM10K_MRQC_IPV6 |
 755                        FM10K_MRQC_TCP_IPV6;
 756
 757                 if (flags & FM10K_FLAG_RSS_FIELD_IPV4_UDP)
 758                         mrqc |= FM10K_MRQC_UDP_IPV4;
 759                 if (flags & FM10K_FLAG_RSS_FIELD_IPV6_UDP)
 760                         mrqc |= FM10K_MRQC_UDP_IPV6;
 761
 762                 fm10k_write_reg(hw, FM10K_MRQC(0), mrqc);
 763         }
 764
 765         return 0;
 766 }
 767
 768 static int fm10k_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd)
 769 {
 770         struct fm10k_intfc *interface = netdev_priv(dev);
 771         int ret = -EOPNOTSUPP;
 772
 773         switch (cmd->cmd) {
 774         case ETHTOOL_SRXFH:
 775                 ret = fm10k_set_rss_hash_opt(interface, cmd);
 776                 break;
 777         default:
 778                 break;
 779         }
 780
 781         return ret;
 782 }
 783
 784 static int fm10k_mbx_test(struct fm10k_intfc *interface, u64 *data)
 785 {
 786         struct fm10k_hw *hw = &interface->hw;
 787         struct fm10k_mbx_info *mbx = &hw->mbx;
 788         u32 attr_flag, test_msg[6];
 789         unsigned long timeout;
 790         int err;
 791
 792         /* For now this is a VF only feature */
 793         if (hw->mac.type != fm10k_mac_vf)
 794                 return 0;
 795
 796         /* loop through both nested and unnested attribute types */
 797         for (attr_flag = (1 << FM10K_TEST_MSG_UNSET);
 798              attr_flag < (1 << (2 * FM10K_TEST_MSG_NESTED));
 799              attr_flag += attr_flag) {
 800                 /* generate message to be tested */
 801                 fm10k_tlv_msg_test_create(test_msg, attr_flag);
 802
 803                 fm10k_mbx_lock(interface);
 804                 mbx->test_result = FM10K_NOT_IMPLEMENTED;
 805                 err = mbx->ops.enqueue_tx(hw, mbx, test_msg);
 806                 fm10k_mbx_unlock(interface);
 807
 808                 /* wait up to 1 second for response */
 809                 timeout = jiffies + HZ;
 810                 do {
 811                         if (err < 0)
 812                                 goto err_out;
 813
 814                         usleep_range(500, 1000);
 815
 816                         fm10k_mbx_lock(interface);
 817                         mbx->ops.process(hw, mbx);
 818                         fm10k_mbx_unlock(interface);
 819
 820                         err = mbx->test_result;
 821                         if (!err)
 822                                 break;
 823                 } while (time_is_after_jiffies(timeout));
 824
 825                 /* reporting errors */
 826                 if (err)
 827                         goto err_out;
 828         }
 829
 830 err_out:
 831         *data = err < 0 ? (attr_flag) : (err > 0);
 832         return err;
 833 }
 834
 835 static void fm10k_self_test(struct net_device *dev,
 836                             struct ethtool_test *eth_test, u64 *data)
 837 {
 838         struct fm10k_intfc *interface = netdev_priv(dev);
 839         struct fm10k_hw *hw = &interface->hw;
 840
 841         memset(data, 0, sizeof(*data) * FM10K_TEST_LEN);
 842
 843         if (FM10K_REMOVED(hw)) {
 844                 netif_err(interface, drv, dev,
 845                           "Interface removed - test blocked\n");
 846                 eth_test->flags |= ETH_TEST_FL_FAILED;
 847                 return;
 848         }
 849
 850         if (fm10k_mbx_test(interface, &data[FM10K_TEST_MBX]))
 851                 eth_test->flags |= ETH_TEST_FL_FAILED;
 852 }
 853
 854 static u32 fm10k_get_reta_size(struct net_device *netdev)
 855 {
 856         return FM10K_RETA_SIZE * FM10K_RETA_ENTRIES_PER_REG;
 857 }
 858
 859 static int fm10k_get_reta(struct net_device *netdev, u32 *indir)
 860 {
 861         struct fm10k_intfc *interface = netdev_priv(netdev);
 862         int i;
 863
 864         if (!indir)
 865                 return 0;
 866
 867         for (i = 0; i < FM10K_RETA_SIZE; i++, indir += 4) {
 868                 u32 reta = interface->reta[i];
 869
 870                 indir[0] = (reta << 24) >> 24;
 871                 indir[1] = (reta << 16) >> 24;
 872                 indir[2] = (reta <<  8) >> 24;
 873                 indir[3] = (reta) >> 24;
 874         }
 875
 876         return 0;
 877 }
 878
 879 static int fm10k_set_reta(struct net_device *netdev, const u32 *indir)
 880 {
 881         struct fm10k_intfc *interface = netdev_priv(netdev);
 882         struct fm10k_hw *hw = &interface->hw;
 883         int i;
 884         u16 rss_i;
 885
 886         if (!indir)
 887                 return 0;
 888
 889         /* Verify user input. */
 890         rss_i = interface->ring_feature[RING_F_RSS].indices;
 891         for (i = fm10k_get_reta_size(netdev); i--;) {
 892                 if (indir[i] < rss_i)
 893                         continue;
 894                 return -EINVAL;
 895         }
 896
 897         /* record entries to reta table */
 898         for (i = 0; i < FM10K_RETA_SIZE; i++, indir += 4) {
 899                 u32 reta = indir[0] |
 900                            (indir[1] << 8) |
 901                            (indir[2] << 16) |
 902                            (indir[3] << 24);
 903
 904                 if (interface->reta[i] == reta)
 905                         continue;
 906
 907                 interface->reta[i] = reta;
 908                 fm10k_write_reg(hw, FM10K_RETA(0, i), reta);
 909         }
 910
 911         return 0;
 912 }
 913
 914 static u32 fm10k_get_rssrk_size(struct net_device *netdev)
 915 {
 916         return FM10K_RSSRK_SIZE * FM10K_RSSRK_ENTRIES_PER_REG;
 917 }
 918
 919 static int fm10k_get_rssh(struct net_device *netdev, u32 *indir, u8 *key)
 920 {
 921         struct fm10k_intfc *interface = netdev_priv(netdev);
 922         int i, err;
 923
 924         err = fm10k_get_reta(netdev, indir);
 925         if (err || !key)
 926                 return err;
 927
 928         for (i = 0; i < FM10K_RSSRK_SIZE; i++, key += 4)
 929                 *(__le32 *)key = cpu_to_le32(interface->rssrk[i]);
 930
 931         return 0;
 932 }
 933
 934 static int fm10k_set_rssh(struct net_device *netdev, const u32 *indir,
 935                           const u8 *key)
 936 {
 937         struct fm10k_intfc *interface = netdev_priv(netdev);
 938         struct fm10k_hw *hw = &interface->hw;
 939         int i, err;
 940
 941         err = fm10k_set_reta(netdev, indir);
 942         if (err || !key)
 943                 return err;
 944
 945         for (i = 0; i < FM10K_RSSRK_SIZE; i++, key += 4) {
 946                 u32 rssrk = le32_to_cpu(*(__le32 *)key);
 947
 948                 if (interface->rssrk[i] == rssrk)
 949                         continue;
 950
 951                 interface->rssrk[i] = rssrk;
 952                 fm10k_write_reg(hw, FM10K_RSSRK(0, i), rssrk);
 953         }
 954
 955         return 0;
 956 }
 957
 958 static unsigned int fm10k_max_channels(struct net_device *dev)
 959 {
 960         struct fm10k_intfc *interface = netdev_priv(dev);
 961         unsigned int max_combined = interface->hw.mac.max_queues;
 962         u8 tcs = netdev_get_num_tc(dev);
 963
 964         /* For QoS report channels per traffic class */
 965         if (tcs > 1)
 966                 max_combined = 1 << (fls(max_combined / tcs) - 1);
 967
 968         return max_combined;
 969 }
 970
 971 static void fm10k_get_channels(struct net_device *dev,
 972                                struct ethtool_channels *ch)
 973 {
 974         struct fm10k_intfc *interface = netdev_priv(dev);
 975         struct fm10k_hw *hw = &interface->hw;
 976
 977         /* report maximum channels */
 978         ch->max_combined = fm10k_max_channels(dev);
 979
 980         /* report info for other vector */
 981         ch->max_other = NON_Q_VECTORS(hw);
 982         ch->other_count = ch->max_other;
 983
 984         /* record RSS queues */
 985         ch->combined_count = interface->ring_feature[RING_F_RSS].indices;
 986 }
 987
 988 static int fm10k_set_channels(struct net_device *dev,
 989                               struct ethtool_channels *ch)
 990 {
 991         struct fm10k_intfc *interface = netdev_priv(dev);
 992         unsigned int count = ch->combined_count;
 993         struct fm10k_hw *hw = &interface->hw;
 994
 995         /* verify they are not requesting separate vectors */
 996         if (!count || ch->rx_count || ch->tx_count)
 997                 return -EINVAL;
 998
 999         /* verify other_count has not changed */
1000         if (ch->other_count != NON_Q_VECTORS(hw))
1001                 return -EINVAL;
1002
1003         /* verify the number of channels does not exceed hardware limits */
1004         if (count > fm10k_max_channels(dev))
1005                 return -EINVAL;
1006
1007         interface->ring_feature[RING_F_RSS].limit = count;
1008
1009         /* use setup TC to update any traffic class queue mapping */
1010         return fm10k_setup_tc(dev, netdev_get_num_tc(dev));
1011 }
1012
1013 static int fm10k_get_ts_info(struct net_device *dev,
1014                            struct ethtool_ts_info *info)
1015 {
1016         struct fm10k_intfc *interface = netdev_priv(dev);
1017
1018         info->so_timestamping =
1019                 SOF_TIMESTAMPING_TX_SOFTWARE |
1020                 SOF_TIMESTAMPING_RX_SOFTWARE |
1021                 SOF_TIMESTAMPING_SOFTWARE |
1022                 SOF_TIMESTAMPING_TX_HARDWARE |
1023                 SOF_TIMESTAMPING_RX_HARDWARE |
1024                 SOF_TIMESTAMPING_RAW_HARDWARE;
1025
1026         if (interface->ptp_clock)
1027                 info->phc_index = ptp_clock_index(interface->ptp_clock);
1028         else
1029                 info->phc_index = -1;
1030
1031         info->tx_types = (1 << HWTSTAMP_TX_OFF) |
1032                          (1 << HWTSTAMP_TX_ON);
1033
1034         info->rx_filters = (1 << HWTSTAMP_FILTER_NONE) |
1035                            (1 << HWTSTAMP_FILTER_ALL);
1036
1037         return 0;
1038 }
1039
1040 static const struct ethtool_ops fm10k_ethtool_ops = {
1041         .get_strings            = fm10k_get_strings,
1042         .get_sset_count         = fm10k_get_sset_count,
1043         .get_ethtool_stats      = fm10k_get_ethtool_stats,
1044         .get_drvinfo            = fm10k_get_drvinfo,
1045         .get_link               = ethtool_op_get_link,
1046         .get_pauseparam         = fm10k_get_pauseparam,
1047         .set_pauseparam         = fm10k_set_pauseparam,
1048         .get_msglevel           = fm10k_get_msglevel,
1049         .set_msglevel           = fm10k_set_msglevel,
1050         .get_ringparam          = fm10k_get_ringparam,
1051         .set_ringparam          = fm10k_set_ringparam,
1052         .get_coalesce           = fm10k_get_coalesce,
1053         .set_coalesce           = fm10k_set_coalesce,
1054         .get_rxnfc              = fm10k_get_rxnfc,
1055         .set_rxnfc              = fm10k_set_rxnfc,
1056         .get_regs               = fm10k_get_regs,
1057         .get_regs_len           = fm10k_get_regs_len,
1058         .self_test              = fm10k_self_test,
1059         .get_rxfh_indir_size    = fm10k_get_reta_size,
1060         .get_rxfh_key_size      = fm10k_get_rssrk_size,
1061         .get_rxfh               = fm10k_get_rssh,
1062         .set_rxfh               = fm10k_set_rssh,
1063         .get_channels           = fm10k_get_channels,
1064         .set_channels           = fm10k_set_channels,
1065         .get_ts_info            = fm10k_get_ts_info,
1066 };
1067
1068 void fm10k_set_ethtool_ops(struct net_device *dev)
1069 {
1070         dev->ethtool_ops = &fm10k_ethtool_ops;
1071 }