drivers/net/ethernet/intel/i40e/i40e_ethtool.c

   1 /*******************************************************************************
   2  *
   3  * Intel Ethernet Controller XL710 Family Linux Driver
   4  * Copyright(c) 2013 Intel Corporation.
   5  *
   6  * This program is free software; you can redistribute it and/or modify it
   7  * under the terms and conditions of the GNU General Public License,
   8  * version 2, as published by the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope it will be useful, but WITHOUT
  11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  13  * more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along with
  16  * this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * The full GNU General Public License is included in this distribution in
  20  * the file called "COPYING".
  21  *
  22  * Contact Information:
  23  * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
  24  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  25  *
  26  ******************************************************************************/
  27
  28 /* ethtool support for i40e */
  29
  30 #include "i40e.h"
  31 #include "i40e_diag.h"
  32
  33 struct i40e_stats {
  34         char stat_string[ETH_GSTRING_LEN];
  35         int sizeof_stat;
  36         int stat_offset;
  37 };
  38
  39 #define I40E_STAT(_type, _name, _stat) { \
  40         .stat_string = _name, \
  41         .sizeof_stat = FIELD_SIZEOF(_type, _stat), \
  42         .stat_offset = offsetof(_type, _stat) \
  43 }
  44 #define I40E_NETDEV_STAT(_net_stat) \
  45                 I40E_STAT(struct net_device_stats, #_net_stat, _net_stat)
  46 #define I40E_PF_STAT(_name, _stat) \
  47                 I40E_STAT(struct i40e_pf, _name, _stat)
  48 #define I40E_VSI_STAT(_name, _stat) \
  49                 I40E_STAT(struct i40e_vsi, _name, _stat)
  50
  51 static const struct i40e_stats i40e_gstrings_net_stats[] = {
  52         I40E_NETDEV_STAT(rx_packets),
  53         I40E_NETDEV_STAT(tx_packets),
  54         I40E_NETDEV_STAT(rx_bytes),
  55         I40E_NETDEV_STAT(tx_bytes),
  56         I40E_NETDEV_STAT(rx_errors),
  57         I40E_NETDEV_STAT(tx_errors),
  58         I40E_NETDEV_STAT(rx_dropped),
  59         I40E_NETDEV_STAT(tx_dropped),
  60         I40E_NETDEV_STAT(multicast),
  61         I40E_NETDEV_STAT(collisions),
  62         I40E_NETDEV_STAT(rx_length_errors),
  63         I40E_NETDEV_STAT(rx_crc_errors),
  64 };
  65
  66 /* These PF_STATs might look like duplicates of some NETDEV_STATs,
  67  * but they are separate.  This device supports Virtualization, and
  68  * as such might have several netdevs supporting VMDq and FCoE going
  69  * through a single port.  The NETDEV_STATs are for individual netdevs
  70  * seen at the top of the stack, and the PF_STATs are for the physical
  71  * function at the bottom of the stack hosting those netdevs.
  72  *
  73  * The PF_STATs are appended to the netdev stats only when ethtool -S
  74  * is queried on the base PF netdev, not on the VMDq or FCoE netdev.
  75  */
  76 static struct i40e_stats i40e_gstrings_stats[] = {
  77         I40E_PF_STAT("rx_bytes", stats.eth.rx_bytes),
  78         I40E_PF_STAT("tx_bytes", stats.eth.tx_bytes),
  79         I40E_PF_STAT("rx_errors", stats.eth.rx_errors),
  80         I40E_PF_STAT("tx_errors", stats.eth.tx_errors),
  81         I40E_PF_STAT("rx_dropped", stats.eth.rx_discards),
  82         I40E_PF_STAT("tx_dropped", stats.eth.tx_discards),
  83         I40E_PF_STAT("tx_dropped_link_down", stats.tx_dropped_link_down),
  84         I40E_PF_STAT("crc_errors", stats.crc_errors),
  85         I40E_PF_STAT("illegal_bytes", stats.illegal_bytes),
  86         I40E_PF_STAT("mac_local_faults", stats.mac_local_faults),
  87         I40E_PF_STAT("mac_remote_faults", stats.mac_remote_faults),
  88         I40E_PF_STAT("rx_length_errors", stats.rx_length_errors),
  89         I40E_PF_STAT("link_xon_rx", stats.link_xon_rx),
  90         I40E_PF_STAT("link_xoff_rx", stats.link_xoff_rx),
  91         I40E_PF_STAT("link_xon_tx", stats.link_xon_tx),
  92         I40E_PF_STAT("link_xoff_tx", stats.link_xoff_tx),
  93         I40E_PF_STAT("rx_size_64", stats.rx_size_64),
  94         I40E_PF_STAT("rx_size_127", stats.rx_size_127),
  95         I40E_PF_STAT("rx_size_255", stats.rx_size_255),
  96         I40E_PF_STAT("rx_size_511", stats.rx_size_511),
  97         I40E_PF_STAT("rx_size_1023", stats.rx_size_1023),
  98         I40E_PF_STAT("rx_size_1522", stats.rx_size_1522),
  99         I40E_PF_STAT("rx_size_big", stats.rx_size_big),
 100         I40E_PF_STAT("tx_size_64", stats.tx_size_64),
 101         I40E_PF_STAT("tx_size_127", stats.tx_size_127),
 102         I40E_PF_STAT("tx_size_255", stats.tx_size_255),
 103         I40E_PF_STAT("tx_size_511", stats.tx_size_511),
 104         I40E_PF_STAT("tx_size_1023", stats.tx_size_1023),
 105         I40E_PF_STAT("tx_size_1522", stats.tx_size_1522),
 106         I40E_PF_STAT("tx_size_big", stats.tx_size_big),
 107         I40E_PF_STAT("rx_undersize", stats.rx_undersize),
 108         I40E_PF_STAT("rx_fragments", stats.rx_fragments),
 109         I40E_PF_STAT("rx_oversize", stats.rx_oversize),
 110         I40E_PF_STAT("rx_jabber", stats.rx_jabber),
 111         I40E_PF_STAT("VF_admin_queue_requests", vf_aq_requests),
 112 };
 113
 114 #define I40E_QUEUE_STATS_LEN(n) \
 115   ((((struct i40e_netdev_priv *)netdev_priv((n)))->vsi->num_queue_pairs + \
 116     ((struct i40e_netdev_priv *)netdev_priv((n)))->vsi->num_queue_pairs) * 2)
 117 #define I40E_GLOBAL_STATS_LEN   ARRAY_SIZE(i40e_gstrings_stats)
 118 #define I40E_NETDEV_STATS_LEN   ARRAY_SIZE(i40e_gstrings_net_stats)
 119 #define I40E_VSI_STATS_LEN(n)   (I40E_NETDEV_STATS_LEN + \
 120                                  I40E_QUEUE_STATS_LEN((n)))
 121 #define I40E_PFC_STATS_LEN ( \
 122                 (FIELD_SIZEOF(struct i40e_pf, stats.priority_xoff_rx) + \
 123                  FIELD_SIZEOF(struct i40e_pf, stats.priority_xon_rx) + \
 124                  FIELD_SIZEOF(struct i40e_pf, stats.priority_xoff_tx) + \
 125                  FIELD_SIZEOF(struct i40e_pf, stats.priority_xon_tx) + \
 126                  FIELD_SIZEOF(struct i40e_pf, stats.priority_xon_2_xoff)) \
 127                  / sizeof(u64))
 128 #define I40E_PF_STATS_LEN(n)    (I40E_GLOBAL_STATS_LEN + \
 129                                  I40E_PFC_STATS_LEN + \
 130                                  I40E_VSI_STATS_LEN((n)))
 131
 132 enum i40e_ethtool_test_id {
 133         I40E_ETH_TEST_REG = 0,
 134         I40E_ETH_TEST_EEPROM,
 135         I40E_ETH_TEST_INTR,
 136         I40E_ETH_TEST_LOOPBACK,
 137         I40E_ETH_TEST_LINK,
 138 };
 139
 140 static const char i40e_gstrings_test[][ETH_GSTRING_LEN] = {
 141         "Register test  (offline)",
 142         "Eeprom test    (offline)",
 143         "Interrupt test (offline)",
 144         "Loopback test  (offline)",
 145         "Link test   (on/offline)"
 146 };
 147
 148 #define I40E_TEST_LEN (sizeof(i40e_gstrings_test) / ETH_GSTRING_LEN)
 149
 150 /**
 151  * i40e_get_settings - Get Link Speed and Duplex settings
 152  * @netdev: network interface device structure
 153  * @ecmd: ethtool command
 154  *
 155  * Reports speed/duplex settings based on media_type
 156  **/
 157 static int i40e_get_settings(struct net_device *netdev,
 158                              struct ethtool_cmd *ecmd)
 159 {
 160         struct i40e_netdev_priv *np = netdev_priv(netdev);
 161         struct i40e_pf *pf = np->vsi->back;
 162         struct i40e_hw *hw = &pf->hw;
 163         struct i40e_link_status *hw_link_info = &hw->phy.link_info;
 164         bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP;
 165         u32 link_speed = hw_link_info->link_speed;
 166
 167         /* hardware is either in 40G mode or 10G mode
 168          * NOTE: this section initializes supported and advertising
 169          */
 170         switch (hw_link_info->phy_type) {
 171         case I40E_PHY_TYPE_40GBASE_CR4:
 172         case I40E_PHY_TYPE_40GBASE_CR4_CU:
 173                 ecmd->supported = SUPPORTED_40000baseCR4_Full;
 174                 ecmd->advertising = ADVERTISED_40000baseCR4_Full;
 175                 break;
 176         case I40E_PHY_TYPE_40GBASE_KR4:
 177                 ecmd->supported = SUPPORTED_40000baseKR4_Full;
 178                 ecmd->advertising = ADVERTISED_40000baseKR4_Full;
 179                 break;
 180         case I40E_PHY_TYPE_40GBASE_SR4:
 181                 ecmd->supported = SUPPORTED_40000baseSR4_Full;
 182                 ecmd->advertising = ADVERTISED_40000baseSR4_Full;
 183                 break;
 184         case I40E_PHY_TYPE_40GBASE_LR4:
 185                 ecmd->supported = SUPPORTED_40000baseLR4_Full;
 186                 ecmd->advertising = ADVERTISED_40000baseLR4_Full;
 187                 break;
 188         case I40E_PHY_TYPE_10GBASE_KX4:
 189                 ecmd->supported = SUPPORTED_10000baseKX4_Full;
 190                 ecmd->advertising = ADVERTISED_10000baseKX4_Full;
 191                 break;
 192         case I40E_PHY_TYPE_10GBASE_KR:
 193                 ecmd->supported = SUPPORTED_10000baseKR_Full;
 194                 ecmd->advertising = ADVERTISED_10000baseKR_Full;
 195                 break;
 196         case I40E_PHY_TYPE_10GBASE_T:
 197         default:
 198                 ecmd->supported = SUPPORTED_10000baseT_Full;
 199                 ecmd->advertising = ADVERTISED_10000baseT_Full;
 200                 break;
 201         }
 202
 203         /* for now just say autoneg all the time */
 204         ecmd->supported |= SUPPORTED_Autoneg;
 205
 206         if (hw->phy.media_type == I40E_MEDIA_TYPE_BACKPLANE) {
 207                 ecmd->supported |= SUPPORTED_Backplane;
 208                 ecmd->advertising |= ADVERTISED_Backplane;
 209                 ecmd->port = PORT_NONE;
 210         } else if (hw->phy.media_type == I40E_MEDIA_TYPE_BASET) {
 211                 ecmd->supported |= SUPPORTED_TP;
 212                 ecmd->advertising |= ADVERTISED_TP;
 213                 ecmd->port = PORT_TP;
 214         } else {
 215                 ecmd->supported |= SUPPORTED_FIBRE;
 216                 ecmd->advertising |= ADVERTISED_FIBRE;
 217                 ecmd->port = PORT_FIBRE;
 218         }
 219
 220         ecmd->transceiver = XCVR_EXTERNAL;
 221
 222         if (link_up) {
 223                 switch (link_speed) {
 224                 case I40E_LINK_SPEED_40GB:
 225                         /* need a SPEED_40000 in ethtool.h */
 226                         ethtool_cmd_speed_set(ecmd, 40000);
 227                         break;
 228                 case I40E_LINK_SPEED_10GB:
 229                         ethtool_cmd_speed_set(ecmd, SPEED_10000);
 230                         break;
 231                 default:
 232                         break;
 233                 }
 234                 ecmd->duplex = DUPLEX_FULL;
 235         } else {
 236                 ethtool_cmd_speed_set(ecmd, SPEED_UNKNOWN);
 237                 ecmd->duplex = DUPLEX_UNKNOWN;
 238         }
 239
 240         return 0;
 241 }
 242
 243 /**
 244  * i40e_get_pauseparam -  Get Flow Control status
 245  * Return tx/rx-pause status
 246  **/
 247 static void i40e_get_pauseparam(struct net_device *netdev,
 248                                 struct ethtool_pauseparam *pause)
 249 {
 250         struct i40e_netdev_priv *np = netdev_priv(netdev);
 251         struct i40e_pf *pf = np->vsi->back;
 252         struct i40e_hw *hw = &pf->hw;
 253         struct i40e_link_status *hw_link_info = &hw->phy.link_info;
 254
 255         pause->autoneg =
 256                 ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
 257                   AUTONEG_ENABLE : AUTONEG_DISABLE);
 258
 259         pause->rx_pause = 0;
 260         pause->tx_pause = 0;
 261         if (hw_link_info->an_info & I40E_AQ_LINK_PAUSE_RX)
 262                 pause->rx_pause = 1;
 263         if (hw_link_info->an_info & I40E_AQ_LINK_PAUSE_TX)
 264                 pause->tx_pause = 1;
 265 }
 266
 267 static u32 i40e_get_msglevel(struct net_device *netdev)
 268 {
 269         struct i40e_netdev_priv *np = netdev_priv(netdev);
 270         struct i40e_pf *pf = np->vsi->back;
 271
 272         return pf->msg_enable;
 273 }
 274
 275 static void i40e_set_msglevel(struct net_device *netdev, u32 data)
 276 {
 277         struct i40e_netdev_priv *np = netdev_priv(netdev);
 278         struct i40e_pf *pf = np->vsi->back;
 279
 280         if (I40E_DEBUG_USER & data)
 281                 pf->hw.debug_mask = data;
 282         pf->msg_enable = data;
 283 }
 284
 285 static int i40e_get_regs_len(struct net_device *netdev)
 286 {
 287         int reg_count = 0;
 288         int i;
 289
 290         for (i = 0; i40e_reg_list[i].offset != 0; i++)
 291                 reg_count += i40e_reg_list[i].elements;
 292
 293         return reg_count * sizeof(u32);
 294 }
 295
 296 static void i40e_get_regs(struct net_device *netdev, struct ethtool_regs *regs,
 297                           void *p)
 298 {
 299         struct i40e_netdev_priv *np = netdev_priv(netdev);
 300         struct i40e_pf *pf = np->vsi->back;
 301         struct i40e_hw *hw = &pf->hw;
 302         u32 *reg_buf = p;
 303         int i, j, ri;
 304         u32 reg;
 305
 306         /* Tell ethtool which driver-version-specific regs output we have.
 307          *
 308          * At some point, if we have ethtool doing special formatting of
 309          * this data, it will rely on this version number to know how to
 310          * interpret things.  Hence, this needs to be updated if/when the
 311          * diags register table is changed.
 312          */
 313         regs->version = 1;
 314
 315         /* loop through the diags reg table for what to print */
 316         ri = 0;
 317         for (i = 0; i40e_reg_list[i].offset != 0; i++) {
 318                 for (j = 0; j < i40e_reg_list[i].elements; j++) {
 319                         reg = i40e_reg_list[i].offset
 320                                 + (j * i40e_reg_list[i].stride);
 321                         reg_buf[ri++] = rd32(hw, reg);
 322                 }
 323         }
 324
 325 }
 326
 327 static int i40e_get_eeprom(struct net_device *netdev,
 328                            struct ethtool_eeprom *eeprom, u8 *bytes)
 329 {
 330         struct i40e_netdev_priv *np = netdev_priv(netdev);
 331         struct i40e_hw *hw = &np->vsi->back->hw;
 332         int first_word, last_word;
 333         u16 i, eeprom_len;
 334         u16 *eeprom_buff;
 335         int ret_val = 0;
 336
 337         if (eeprom->len == 0)
 338                 return -EINVAL;
 339
 340         eeprom->magic = hw->vendor_id | (hw->device_id << 16);
 341
 342         first_word = eeprom->offset >> 1;
 343         last_word = (eeprom->offset + eeprom->len - 1) >> 1;
 344         eeprom_len = last_word - first_word + 1;
 345
 346         eeprom_buff = kmalloc(sizeof(u16) * eeprom_len, GFP_KERNEL);
 347         if (!eeprom_buff)
 348                 return -ENOMEM;
 349
 350         ret_val = i40e_read_nvm_buffer(hw, first_word, &eeprom_len,
 351                                            eeprom_buff);
 352         if (eeprom_len == 0) {
 353                 kfree(eeprom_buff);
 354                 return -EACCES;
 355         }
 356
 357         /* Device's eeprom is always little-endian, word addressable */
 358         for (i = 0; i < eeprom_len; i++)
 359                 le16_to_cpus(&eeprom_buff[i]);
 360
 361         memcpy(bytes, (u8 *)eeprom_buff + (eeprom->offset & 1), eeprom->len);
 362         kfree(eeprom_buff);
 363
 364         return ret_val;
 365 }
 366
 367 static int i40e_get_eeprom_len(struct net_device *netdev)
 368 {
 369         struct i40e_netdev_priv *np = netdev_priv(netdev);
 370         struct i40e_hw *hw = &np->vsi->back->hw;
 371
 372         return hw->nvm.sr_size * 2;
 373 }
 374
 375 static void i40e_get_drvinfo(struct net_device *netdev,
 376                              struct ethtool_drvinfo *drvinfo)
 377 {
 378         struct i40e_netdev_priv *np = netdev_priv(netdev);
 379         struct i40e_vsi *vsi = np->vsi;
 380         struct i40e_pf *pf = vsi->back;
 381
 382         strlcpy(drvinfo->driver, i40e_driver_name, sizeof(drvinfo->driver));
 383         strlcpy(drvinfo->version, i40e_driver_version_str,
 384                 sizeof(drvinfo->version));
 385         strlcpy(drvinfo->fw_version, i40e_fw_version_str(&pf->hw),
 386                 sizeof(drvinfo->fw_version));
 387         strlcpy(drvinfo->bus_info, pci_name(pf->pdev),
 388                 sizeof(drvinfo->bus_info));
 389 }
 390
 391 static void i40e_get_ringparam(struct net_device *netdev,
 392                                struct ethtool_ringparam *ring)
 393 {
 394         struct i40e_netdev_priv *np = netdev_priv(netdev);
 395         struct i40e_pf *pf = np->vsi->back;
 396         struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi];
 397
 398         ring->rx_max_pending = I40E_MAX_NUM_DESCRIPTORS;
 399         ring->tx_max_pending = I40E_MAX_NUM_DESCRIPTORS;
 400         ring->rx_mini_max_pending = 0;
 401         ring->rx_jumbo_max_pending = 0;
 402         ring->rx_pending = vsi->rx_rings[0].count;
 403         ring->tx_pending = vsi->tx_rings[0].count;
 404         ring->rx_mini_pending = 0;
 405         ring->rx_jumbo_pending = 0;
 406 }
 407
 408 static int i40e_set_ringparam(struct net_device *netdev,
 409                               struct ethtool_ringparam *ring)
 410 {
 411         struct i40e_ring *tx_rings = NULL, *rx_rings = NULL;
 412         struct i40e_netdev_priv *np = netdev_priv(netdev);
 413         struct i40e_vsi *vsi = np->vsi;
 414         struct i40e_pf *pf = vsi->back;
 415         u32 new_rx_count, new_tx_count;
 416         int i, err = 0;
 417
 418         if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
 419                 return -EINVAL;
 420
 421         new_tx_count = clamp_t(u32, ring->tx_pending,
 422                                I40E_MIN_NUM_DESCRIPTORS,
 423                                I40E_MAX_NUM_DESCRIPTORS);
 424         new_tx_count = ALIGN(new_tx_count, I40E_REQ_DESCRIPTOR_MULTIPLE);
 425
 426         new_rx_count = clamp_t(u32, ring->rx_pending,
 427                                I40E_MIN_NUM_DESCRIPTORS,
 428                                I40E_MAX_NUM_DESCRIPTORS);
 429         new_rx_count = ALIGN(new_rx_count, I40E_REQ_DESCRIPTOR_MULTIPLE);
 430
 431         /* if nothing to do return success */
 432         if ((new_tx_count == vsi->tx_rings[0].count) &&
 433             (new_rx_count == vsi->rx_rings[0].count))
 434                 return 0;
 435
 436         while (test_and_set_bit(__I40E_CONFIG_BUSY, &pf->state))
 437                 usleep_range(1000, 2000);
 438
 439         if (!netif_running(vsi->netdev)) {
 440                 /* simple case - set for the next time the netdev is started */
 441                 for (i = 0; i < vsi->num_queue_pairs; i++) {
 442                         vsi->tx_rings[i].count = new_tx_count;
 443                         vsi->rx_rings[i].count = new_rx_count;
 444                 }
 445                 goto done;
 446         }
 447
 448         /* We can't just free everything and then setup again,
 449          * because the ISRs in MSI-X mode get passed pointers
 450          * to the Tx and Rx ring structs.
 451          */
 452
 453         /* alloc updated Tx resources */
 454         if (new_tx_count != vsi->tx_rings[0].count) {
 455                 netdev_info(netdev,
 456                             "Changing Tx descriptor count from %d to %d.\n",
 457                             vsi->tx_rings[0].count, new_tx_count);
 458                 tx_rings = kcalloc(vsi->alloc_queue_pairs,
 459                                    sizeof(struct i40e_ring), GFP_KERNEL);
 460                 if (!tx_rings) {
 461                         err = -ENOMEM;
 462                         goto done;
 463                 }
 464
 465                 for (i = 0; i < vsi->num_queue_pairs; i++) {
 466                         /* clone ring and setup updated count */
 467                         tx_rings[i] = vsi->tx_rings[i];
 468                         tx_rings[i].count = new_tx_count;
 469                         err = i40e_setup_tx_descriptors(&tx_rings[i]);
 470                         if (err) {
 471                                 while (i) {
 472                                         i--;
 473                                         i40e_free_tx_resources(&tx_rings[i]);
 474                                 }
 475                                 kfree(tx_rings);
 476                                 tx_rings = NULL;
 477
 478                                 goto done;
 479                         }
 480                 }
 481         }
 482
 483         /* alloc updated Rx resources */
 484         if (new_rx_count != vsi->rx_rings[0].count) {
 485                 netdev_info(netdev,
 486                             "Changing Rx descriptor count from %d to %d\n",
 487                             vsi->rx_rings[0].count, new_rx_count);
 488                 rx_rings = kcalloc(vsi->alloc_queue_pairs,
 489                                    sizeof(struct i40e_ring), GFP_KERNEL);
 490                 if (!rx_rings) {
 491                         err = -ENOMEM;
 492                         goto free_tx;
 493                 }
 494
 495                 for (i = 0; i < vsi->num_queue_pairs; i++) {
 496                         /* clone ring and setup updated count */
 497                         rx_rings[i] = vsi->rx_rings[i];
 498                         rx_rings[i].count = new_rx_count;
 499                         err = i40e_setup_rx_descriptors(&rx_rings[i]);
 500                         if (err) {
 501                                 while (i) {
 502                                         i--;
 503                                         i40e_free_rx_resources(&rx_rings[i]);
 504                                 }
 505                                 kfree(rx_rings);
 506                                 rx_rings = NULL;
 507
 508                                 goto free_tx;
 509                         }
 510                 }
 511         }
 512
 513         /* Bring interface down, copy in the new ring info,
 514          * then restore the interface
 515          */
 516         i40e_down(vsi);
 517
 518         if (tx_rings) {
 519                 for (i = 0; i < vsi->num_queue_pairs; i++) {
 520                         i40e_free_tx_resources(&vsi->tx_rings[i]);
 521                         vsi->tx_rings[i] = tx_rings[i];
 522                 }
 523                 kfree(tx_rings);
 524                 tx_rings = NULL;
 525         }
 526
 527         if (rx_rings) {
 528                 for (i = 0; i < vsi->num_queue_pairs; i++) {
 529                         i40e_free_rx_resources(&vsi->rx_rings[i]);
 530                         vsi->rx_rings[i] = rx_rings[i];
 531                 }
 532                 kfree(rx_rings);
 533                 rx_rings = NULL;
 534         }
 535
 536         i40e_up(vsi);
 537
 538 free_tx:
 539         /* error cleanup if the Rx allocations failed after getting Tx */
 540         if (tx_rings) {
 541                 for (i = 0; i < vsi->num_queue_pairs; i++)
 542                         i40e_free_tx_resources(&tx_rings[i]);
 543                 kfree(tx_rings);
 544                 tx_rings = NULL;
 545         }
 546
 547 done:
 548         clear_bit(__I40E_CONFIG_BUSY, &pf->state);
 549
 550         return err;
 551 }
 552
 553 static int i40e_get_sset_count(struct net_device *netdev, int sset)
 554 {
 555         struct i40e_netdev_priv *np = netdev_priv(netdev);
 556         struct i40e_vsi *vsi = np->vsi;
 557         struct i40e_pf *pf = vsi->back;
 558
 559         switch (sset) {
 560         case ETH_SS_TEST:
 561                 return I40E_TEST_LEN;
 562         case ETH_SS_STATS:
 563                 if (vsi == pf->vsi[pf->lan_vsi])
 564                         return I40E_PF_STATS_LEN(netdev);
 565                 else
 566                         return I40E_VSI_STATS_LEN(netdev);
 567         default:
 568                 return -EOPNOTSUPP;
 569         }
 570 }
 571
 572 static void i40e_get_ethtool_stats(struct net_device *netdev,
 573                                    struct ethtool_stats *stats, u64 *data)
 574 {
 575         struct i40e_netdev_priv *np = netdev_priv(netdev);
 576         struct i40e_vsi *vsi = np->vsi;
 577         struct i40e_pf *pf = vsi->back;
 578         int i = 0;
 579         char *p;
 580         int j;
 581         struct rtnl_link_stats64 *net_stats = i40e_get_vsi_stats_struct(vsi);
 582
 583         i40e_update_stats(vsi);
 584
 585         for (j = 0; j < I40E_NETDEV_STATS_LEN; j++) {
 586                 p = (char *)net_stats + i40e_gstrings_net_stats[j].stat_offset;
 587                 data[i++] = (i40e_gstrings_net_stats[j].sizeof_stat ==
 588                         sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
 589         }
 590         for (j = 0; j < vsi->num_queue_pairs; j++) {
 591                 data[i++] = vsi->tx_rings[j].tx_stats.packets;
 592                 data[i++] = vsi->tx_rings[j].tx_stats.bytes;
 593         }
 594         for (j = 0; j < vsi->num_queue_pairs; j++) {
 595                 data[i++] = vsi->rx_rings[j].rx_stats.packets;
 596                 data[i++] = vsi->rx_rings[j].rx_stats.bytes;
 597         }
 598         if (vsi == pf->vsi[pf->lan_vsi]) {
 599                 for (j = 0; j < I40E_GLOBAL_STATS_LEN; j++) {
 600                         p = (char *)pf + i40e_gstrings_stats[j].stat_offset;
 601                         data[i++] = (i40e_gstrings_stats[j].sizeof_stat ==
 602                                    sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
 603                 }
 604                 for (j = 0; j < I40E_MAX_USER_PRIORITY; j++) {
 605                         data[i++] = pf->stats.priority_xon_tx[j];
 606                         data[i++] = pf->stats.priority_xoff_tx[j];
 607                 }
 608                 for (j = 0; j < I40E_MAX_USER_PRIORITY; j++) {
 609                         data[i++] = pf->stats.priority_xon_rx[j];
 610                         data[i++] = pf->stats.priority_xoff_rx[j];
 611                 }
 612                 for (j = 0; j < I40E_MAX_USER_PRIORITY; j++)
 613                         data[i++] = pf->stats.priority_xon_2_xoff[j];
 614         }
 615 }
 616
 617 static void i40e_get_strings(struct net_device *netdev, u32 stringset,
 618                              u8 *data)
 619 {
 620         struct i40e_netdev_priv *np = netdev_priv(netdev);
 621         struct i40e_vsi *vsi = np->vsi;
 622         struct i40e_pf *pf = vsi->back;
 623         char *p = (char *)data;
 624         int i;
 625
 626         switch (stringset) {
 627         case ETH_SS_TEST:
 628                 for (i = 0; i < I40E_TEST_LEN; i++) {
 629                         memcpy(data, i40e_gstrings_test[i], ETH_GSTRING_LEN);
 630                         data += ETH_GSTRING_LEN;
 631                 }
 632                 break;
 633         case ETH_SS_STATS:
 634                 for (i = 0; i < I40E_NETDEV_STATS_LEN; i++) {
 635                         snprintf(p, ETH_GSTRING_LEN, "%s",
 636                                  i40e_gstrings_net_stats[i].stat_string);
 637                         p += ETH_GSTRING_LEN;
 638                 }
 639                 for (i = 0; i < vsi->num_queue_pairs; i++) {
 640                         snprintf(p, ETH_GSTRING_LEN, "tx-%u.tx_packets", i);
 641                         p += ETH_GSTRING_LEN;
 642                         snprintf(p, ETH_GSTRING_LEN, "tx-%u.tx_bytes", i);
 643                         p += ETH_GSTRING_LEN;
 644                 }
 645                 for (i = 0; i < vsi->num_queue_pairs; i++) {
 646                         snprintf(p, ETH_GSTRING_LEN, "rx-%u.rx_packets", i);
 647                         p += ETH_GSTRING_LEN;
 648                         snprintf(p, ETH_GSTRING_LEN, "rx-%u.rx_bytes", i);
 649                         p += ETH_GSTRING_LEN;
 650                 }
 651                 if (vsi == pf->vsi[pf->lan_vsi]) {
 652                         for (i = 0; i < I40E_GLOBAL_STATS_LEN; i++) {
 653                                 snprintf(p, ETH_GSTRING_LEN, "port.%s",
 654                                          i40e_gstrings_stats[i].stat_string);
 655                                 p += ETH_GSTRING_LEN;
 656                         }
 657                         for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) {
 658                                 snprintf(p, ETH_GSTRING_LEN,
 659                                          "port.tx_priority_%u_xon", i);
 660                                 p += ETH_GSTRING_LEN;
 661                                 snprintf(p, ETH_GSTRING_LEN,
 662                                          "port.tx_priority_%u_xoff", i);
 663                                 p += ETH_GSTRING_LEN;
 664                         }
 665                         for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) {
 666                                 snprintf(p, ETH_GSTRING_LEN,
 667                                          "port.rx_priority_%u_xon", i);
 668                                 p += ETH_GSTRING_LEN;
 669                                 snprintf(p, ETH_GSTRING_LEN,
 670                                          "port.rx_priority_%u_xoff", i);
 671                                 p += ETH_GSTRING_LEN;
 672                         }
 673                         for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) {
 674                                 snprintf(p, ETH_GSTRING_LEN,
 675                                          "port.rx_priority_%u_xon_2_xoff", i);
 676                                 p += ETH_GSTRING_LEN;
 677                         }
 678                 }
 679                 /* BUG_ON(p - data != I40E_STATS_LEN * ETH_GSTRING_LEN); */
 680                 break;
 681         }
 682 }
 683
 684 static int i40e_get_ts_info(struct net_device *dev,
 685                             struct ethtool_ts_info *info)
 686 {
 687         return ethtool_op_get_ts_info(dev, info);
 688 }
 689
 690 static int i40e_link_test(struct i40e_pf *pf, u64 *data)
 691 {
 692         if (i40e_get_link_status(&pf->hw))
 693                 *data = 0;
 694         else
 695                 *data = 1;
 696
 697         return *data;
 698 }
 699
 700 static int i40e_reg_test(struct i40e_pf *pf, u64 *data)
 701 {
 702         i40e_status ret;
 703
 704         ret = i40e_diag_reg_test(&pf->hw);
 705         *data = ret;
 706
 707         return ret;
 708 }
 709
 710 static int i40e_eeprom_test(struct i40e_pf *pf, u64 *data)
 711 {
 712         i40e_status ret;
 713
 714         ret = i40e_diag_eeprom_test(&pf->hw);
 715         *data = ret;
 716
 717         return ret;
 718 }
 719
 720 static int i40e_intr_test(struct i40e_pf *pf, u64 *data)
 721 {
 722         *data = -ENOSYS;
 723
 724         return *data;
 725 }
 726
 727 static int i40e_loopback_test(struct i40e_pf *pf, u64 *data)
 728 {
 729         *data = -ENOSYS;
 730
 731         return *data;
 732 }
 733
 734 static void i40e_diag_test(struct net_device *netdev,
 735                            struct ethtool_test *eth_test, u64 *data)
 736 {
 737         struct i40e_netdev_priv *np = netdev_priv(netdev);
 738         struct i40e_pf *pf = np->vsi->back;
 739
 740         set_bit(__I40E_TESTING, &pf->state);
 741         if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
 742                 /* Offline tests */
 743
 744                 netdev_info(netdev, "offline testing starting\n");
 745
 746                 /* Link test performed before hardware reset
 747                  * so autoneg doesn't interfere with test result
 748                  */
 749                 netdev_info(netdev, "link test starting\n");
 750                 if (i40e_link_test(pf, &data[I40E_ETH_TEST_LINK]))
 751                         eth_test->flags |= ETH_TEST_FL_FAILED;
 752
 753                 netdev_info(netdev, "register test starting\n");
 754                 if (i40e_reg_test(pf, &data[I40E_ETH_TEST_REG]))
 755                         eth_test->flags |= ETH_TEST_FL_FAILED;
 756
 757                 i40e_do_reset(pf, (1 << __I40E_PF_RESET_REQUESTED));
 758                 netdev_info(netdev, "eeprom test starting\n");
 759                 if (i40e_eeprom_test(pf, &data[I40E_ETH_TEST_EEPROM]))
 760                         eth_test->flags |= ETH_TEST_FL_FAILED;
 761
 762                 i40e_do_reset(pf, (1 << __I40E_PF_RESET_REQUESTED));
 763                 netdev_info(netdev, "interrupt test starting\n");
 764                 if (i40e_intr_test(pf, &data[I40E_ETH_TEST_INTR]))
 765                         eth_test->flags |= ETH_TEST_FL_FAILED;
 766
 767                 i40e_do_reset(pf, (1 << __I40E_PF_RESET_REQUESTED));
 768                 netdev_info(netdev, "loopback test starting\n");
 769                 if (i40e_loopback_test(pf, &data[I40E_ETH_TEST_LOOPBACK]))
 770                         eth_test->flags |= ETH_TEST_FL_FAILED;
 771
 772         } else {
 773                 netdev_info(netdev, "online test starting\n");
 774                 /* Online tests */
 775                 if (i40e_link_test(pf, &data[I40E_ETH_TEST_LINK]))
 776                         eth_test->flags |= ETH_TEST_FL_FAILED;
 777
 778                 /* Offline only tests, not run in online; pass by default */
 779                 data[I40E_ETH_TEST_REG] = 0;
 780                 data[I40E_ETH_TEST_EEPROM] = 0;
 781                 data[I40E_ETH_TEST_INTR] = 0;
 782                 data[I40E_ETH_TEST_LOOPBACK] = 0;
 783
 784                 clear_bit(__I40E_TESTING, &pf->state);
 785         }
 786 }
 787
 788 static void i40e_get_wol(struct net_device *netdev,
 789                          struct ethtool_wolinfo *wol)
 790 {
 791         wol->supported = 0;
 792         wol->wolopts = 0;
 793 }
 794
 795 static int i40e_nway_reset(struct net_device *netdev)
 796 {
 797         /* restart autonegotiation */
 798         struct i40e_netdev_priv *np = netdev_priv(netdev);
 799         struct i40e_pf *pf = np->vsi->back;
 800         struct i40e_hw *hw = &pf->hw;
 801         i40e_status ret = 0;
 802
 803         ret = i40e_aq_set_link_restart_an(hw, NULL);
 804         if (ret) {
 805                 netdev_info(netdev, "link restart failed, aq_err=%d\n",
 806                             pf->hw.aq.asq_last_status);
 807                 return -EIO;
 808         }
 809
 810         return 0;
 811 }
 812
 813 static int i40e_set_phys_id(struct net_device *netdev,
 814                             enum ethtool_phys_id_state state)
 815 {
 816         struct i40e_netdev_priv *np = netdev_priv(netdev);
 817         struct i40e_pf *pf = np->vsi->back;
 818         struct i40e_hw *hw = &pf->hw;
 819         int blink_freq = 2;
 820
 821         switch (state) {
 822         case ETHTOOL_ID_ACTIVE:
 823                 pf->led_status = i40e_led_get(hw);
 824                 return blink_freq;
 825         case ETHTOOL_ID_ON:
 826                 i40e_led_set(hw, 0xF);
 827                 break;
 828         case ETHTOOL_ID_OFF:
 829                 i40e_led_set(hw, 0x0);
 830                 break;
 831         case ETHTOOL_ID_INACTIVE:
 832                 i40e_led_set(hw, pf->led_status);
 833                 break;
 834         }
 835
 836         return 0;
 837 }
 838
 839 /* NOTE: i40e hardware uses a conversion factor of 2 for Interrupt
 840  * Throttle Rate (ITR) ie. ITR(1) = 2us ITR(10) = 20 us, and also
 841  * 125us (8000 interrupts per second) == ITR(62)
 842  */
 843
 844 static int i40e_get_coalesce(struct net_device *netdev,
 845                              struct ethtool_coalesce *ec)
 846 {
 847         struct i40e_netdev_priv *np = netdev_priv(netdev);
 848         struct i40e_vsi *vsi = np->vsi;
 849
 850         ec->tx_max_coalesced_frames_irq = vsi->work_limit;
 851         ec->rx_max_coalesced_frames_irq = vsi->work_limit;
 852
 853         if (ITR_IS_DYNAMIC(vsi->rx_itr_setting))
 854                 ec->rx_coalesce_usecs = 1;
 855         else
 856                 ec->rx_coalesce_usecs = vsi->rx_itr_setting;
 857
 858         if (ITR_IS_DYNAMIC(vsi->tx_itr_setting))
 859                 ec->tx_coalesce_usecs = 1;
 860         else
 861                 ec->tx_coalesce_usecs = vsi->tx_itr_setting;
 862
 863         return 0;
 864 }
 865
 866 static int i40e_set_coalesce(struct net_device *netdev,
 867                              struct ethtool_coalesce *ec)
 868 {
 869         struct i40e_netdev_priv *np = netdev_priv(netdev);
 870         struct i40e_q_vector *q_vector;
 871         struct i40e_vsi *vsi = np->vsi;
 872         struct i40e_pf *pf = vsi->back;
 873         struct i40e_hw *hw = &pf->hw;
 874         u16 vector;
 875         int i;
 876
 877         if (ec->tx_max_coalesced_frames_irq || ec->rx_max_coalesced_frames_irq)
 878                 vsi->work_limit = ec->tx_max_coalesced_frames_irq;
 879
 880         switch (ec->rx_coalesce_usecs) {
 881         case 0:
 882                 vsi->rx_itr_setting = 0;
 883                 break;
 884         case 1:
 885                 vsi->rx_itr_setting = (I40E_ITR_DYNAMIC |
 886                                        ITR_REG_TO_USEC(I40E_ITR_RX_DEF));
 887                 break;
 888         default:
 889                 if ((ec->rx_coalesce_usecs < (I40E_MIN_ITR << 1)) ||
 890                     (ec->rx_coalesce_usecs > (I40E_MAX_ITR << 1)))
 891                         return -EINVAL;
 892                 vsi->rx_itr_setting = ec->rx_coalesce_usecs;
 893                 break;
 894         }
 895
 896         switch (ec->tx_coalesce_usecs) {
 897         case 0:
 898                 vsi->tx_itr_setting = 0;
 899                 break;
 900         case 1:
 901                 vsi->tx_itr_setting = (I40E_ITR_DYNAMIC |
 902                                        ITR_REG_TO_USEC(I40E_ITR_TX_DEF));
 903                 break;
 904         default:
 905                 if ((ec->tx_coalesce_usecs < (I40E_MIN_ITR << 1)) ||
 906                     (ec->tx_coalesce_usecs > (I40E_MAX_ITR << 1)))
 907                         return -EINVAL;
 908                 vsi->tx_itr_setting = ec->tx_coalesce_usecs;
 909                 break;
 910         }
 911
 912         vector = vsi->base_vector;
 913         q_vector = vsi->q_vectors;
 914         for (i = 0; i < vsi->num_q_vectors; i++, vector++, q_vector++) {
 915                 q_vector->rx.itr = ITR_TO_REG(vsi->rx_itr_setting);
 916                 wr32(hw, I40E_PFINT_ITRN(0, vector - 1), q_vector->rx.itr);
 917                 q_vector->tx.itr = ITR_TO_REG(vsi->tx_itr_setting);
 918                 wr32(hw, I40E_PFINT_ITRN(1, vector - 1), q_vector->tx.itr);
 919                 i40e_flush(hw);
 920         }
 921
 922         return 0;
 923 }
 924
 925 /**
 926  * i40e_get_rss_hash_opts - Get RSS hash Input Set for each flow type
 927  * @pf: pointer to the physical function struct
 928  * @cmd: ethtool rxnfc command
 929  *
 930  * Returns Success if the flow is supported, else Invalid Input.
 931  **/
 932 static int i40e_get_rss_hash_opts(struct i40e_pf *pf, struct ethtool_rxnfc *cmd)
 933 {
 934         cmd->data = 0;
 935
 936         /* Report default options for RSS on i40e */
 937         switch (cmd->flow_type) {
 938         case TCP_V4_FLOW:
 939         case UDP_V4_FLOW:
 940                 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
 941         /* fall through to add IP fields */
 942         case SCTP_V4_FLOW:
 943         case AH_ESP_V4_FLOW:
 944         case AH_V4_FLOW:
 945         case ESP_V4_FLOW:
 946         case IPV4_FLOW:
 947                 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
 948                 break;
 949         case TCP_V6_FLOW:
 950         case UDP_V6_FLOW:
 951                 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
 952         /* fall through to add IP fields */
 953         case SCTP_V6_FLOW:
 954         case AH_ESP_V6_FLOW:
 955         case AH_V6_FLOW:
 956         case ESP_V6_FLOW:
 957         case IPV6_FLOW:
 958                 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
 959                 break;
 960         default:
 961                 return -EINVAL;
 962         }
 963
 964         return 0;
 965 }
 966
 967 /**
 968  * i40e_get_rxnfc - command to get RX flow classification rules
 969  * @netdev: network interface device structure
 970  * @cmd: ethtool rxnfc command
 971  *
 972  * Returns Success if the command is supported.
 973  **/
 974 static int i40e_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd,
 975                           u32 *rule_locs)
 976 {
 977         struct i40e_netdev_priv *np = netdev_priv(netdev);
 978         struct i40e_vsi *vsi = np->vsi;
 979         struct i40e_pf *pf = vsi->back;
 980         int ret = -EOPNOTSUPP;
 981
 982         switch (cmd->cmd) {
 983         case ETHTOOL_GRXRINGS:
 984                 cmd->data = vsi->alloc_queue_pairs;
 985                 ret = 0;
 986                 break;
 987         case ETHTOOL_GRXFH:
 988                 ret = i40e_get_rss_hash_opts(pf, cmd);
 989                 break;
 990         case ETHTOOL_GRXCLSRLCNT:
 991                 ret = 0;
 992                 break;
 993         case ETHTOOL_GRXCLSRULE:
 994                 ret = 0;
 995                 break;
 996         case ETHTOOL_GRXCLSRLALL:
 997                 cmd->data = 500;
 998                 ret = 0;
 999         default:
1000                 break;
1001         }
1002
1003         return ret;
1004 }
1005
1006 /**
1007  * i40e_set_rss_hash_opt - Enable/Disable flow types for RSS hash
1008  * @pf: pointer to the physical function struct
1009  * @cmd: ethtool rxnfc command
1010  *
1011  * Returns Success if the flow input set is supported.
1012  **/
1013 static int i40e_set_rss_hash_opt(struct i40e_pf *pf, struct ethtool_rxnfc *nfc)
1014 {
1015         struct i40e_hw *hw = &pf->hw;
1016         u64 hena = (u64)rd32(hw, I40E_PFQF_HENA(0)) |
1017                    ((u64)rd32(hw, I40E_PFQF_HENA(1)) << 32);
1018
1019         /* RSS does not support anything other than hashing
1020          * to queues on src and dst IPs and ports
1021          */
1022         if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST |
1023                           RXH_L4_B_0_1 | RXH_L4_B_2_3))
1024                 return -EINVAL;
1025
1026         /* We need at least the IP SRC and DEST fields for hashing */
1027         if (!(nfc->data & RXH_IP_SRC) ||
1028             !(nfc->data & RXH_IP_DST))
1029                 return -EINVAL;
1030
1031         switch (nfc->flow_type) {
1032         case TCP_V4_FLOW:
1033                 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
1034                 case 0:
1035                         hena &= ~((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV4_TCP);
1036                         break;
1037                 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
1038                         hena |= ((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV4_TCP);
1039                         break;
1040                 default:
1041                         return -EINVAL;
1042                 }
1043                 break;
1044         case TCP_V6_FLOW:
1045                 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
1046                 case 0:
1047                         hena &= ~((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV6_TCP);
1048                         break;
1049                 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
1050                         hena |= ((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV6_TCP);
1051                         break;
1052                 default:
1053                         return -EINVAL;
1054                 }
1055                 break;
1056         case UDP_V4_FLOW:
1057                 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
1058                 case 0:
1059                         hena &=
1060                         ~(((u64)1 << I40E_FILTER_PCTYPE_NONF_UNICAST_IPV4_UDP) |
1061                         ((u64)1 << I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV4_UDP) |
1062                         ((u64)1 << I40E_FILTER_PCTYPE_FRAG_IPV4));
1063                         break;
1064                 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
1065                         hena |=
1066                         (((u64)1 << I40E_FILTER_PCTYPE_NONF_UNICAST_IPV4_UDP)  |
1067                         ((u64)1 << I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV4_UDP) |
1068                         ((u64)1 << I40E_FILTER_PCTYPE_FRAG_IPV4));
1069                         break;
1070                 default:
1071                         return -EINVAL;
1072                 }
1073                 break;
1074         case UDP_V6_FLOW:
1075                 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
1076                 case 0:
1077                         hena &=
1078                         ~(((u64)1 << I40E_FILTER_PCTYPE_NONF_UNICAST_IPV6_UDP) |
1079                         ((u64)1 << I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV6_UDP) |
1080                         ((u64)1 << I40E_FILTER_PCTYPE_FRAG_IPV6));
1081                         break;
1082                 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
1083                         hena |=
1084                         (((u64)1 << I40E_FILTER_PCTYPE_NONF_UNICAST_IPV6_UDP)  |
1085                         ((u64)1 << I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV6_UDP) |
1086                         ((u64)1 << I40E_FILTER_PCTYPE_FRAG_IPV6));
1087                         break;
1088                 default:
1089                         return -EINVAL;
1090                 }
1091                 break;
1092         case AH_ESP_V4_FLOW:
1093         case AH_V4_FLOW:
1094         case ESP_V4_FLOW:
1095         case SCTP_V4_FLOW:
1096                 if ((nfc->data & RXH_L4_B_0_1) ||
1097                     (nfc->data & RXH_L4_B_2_3))
1098                         return -EINVAL;
1099                 hena |= ((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV4_OTHER);
1100                 break;
1101         case AH_ESP_V6_FLOW:
1102         case AH_V6_FLOW:
1103         case ESP_V6_FLOW:
1104         case SCTP_V6_FLOW:
1105                 if ((nfc->data & RXH_L4_B_0_1) ||
1106                     (nfc->data & RXH_L4_B_2_3))
1107                         return -EINVAL;
1108                 hena |= ((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV6_OTHER);
1109                 break;
1110         case IPV4_FLOW:
1111                 hena |= ((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV4_OTHER) |
1112                         ((u64)1 << I40E_FILTER_PCTYPE_FRAG_IPV4);
1113                 break;
1114         case IPV6_FLOW:
1115                 hena |= ((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV6_OTHER) |
1116                         ((u64)1 << I40E_FILTER_PCTYPE_FRAG_IPV6);
1117                 break;
1118         default:
1119                 return -EINVAL;
1120         }
1121
1122         wr32(hw, I40E_PFQF_HENA(0), (u32)hena);
1123         wr32(hw, I40E_PFQF_HENA(1), (u32)(hena >> 32));
1124         i40e_flush(hw);
1125
1126         return 0;
1127 }
1128
1129 #define IP_HEADER_OFFSET 14
1130 /**
1131  * i40e_add_del_fdir_udpv4 - Add/Remove UDPv4 Flow Director filters for
1132  * a specific flow spec
1133  * @vsi: pointer to the targeted VSI
1134  * @fd_data: the flow director data required from the FDir descriptor
1135  * @ethtool_rx_flow_spec: the flow spec
1136  * @add: true adds a filter, false removes it
1137  *
1138  * Returns 0 if the filters were successfully added or removed
1139  **/
1140 static int i40e_add_del_fdir_udpv4(struct i40e_vsi *vsi,
1141                                    struct i40e_fdir_data *fd_data,
1142                                    struct ethtool_rx_flow_spec *fsp, bool add)
1143 {
1144         struct i40e_pf *pf = vsi->back;
1145         struct udphdr *udp;
1146         struct iphdr *ip;
1147         bool err = false;
1148         int ret;
1149         int i;
1150
1151         ip = (struct iphdr *)(fd_data->raw_packet + IP_HEADER_OFFSET);
1152         udp = (struct udphdr *)(fd_data->raw_packet + IP_HEADER_OFFSET
1153               + sizeof(struct iphdr));
1154
1155         ip->saddr = fsp->h_u.tcp_ip4_spec.ip4src;
1156         ip->daddr = fsp->h_u.tcp_ip4_spec.ip4dst;
1157         udp->source = fsp->h_u.tcp_ip4_spec.psrc;
1158         udp->dest = fsp->h_u.tcp_ip4_spec.pdst;
1159
1160         for (i = I40E_FILTER_PCTYPE_NONF_UNICAST_IPV4_UDP;
1161              i <= I40E_FILTER_PCTYPE_NONF_IPV4_UDP; i++) {
1162                 fd_data->pctype = i;
1163                 ret = i40e_program_fdir_filter(fd_data, pf, add);
1164
1165                 if (ret) {
1166                         dev_info(&pf->pdev->dev,
1167                                  "Filter command send failed for PCTYPE %d (ret = %d)\n",
1168                                  fd_data->pctype, ret);
1169                         err = true;
1170                 } else {
1171                         dev_info(&pf->pdev->dev,
1172                                  "Filter OK for PCTYPE %d (ret = %d)\n",
1173                                  fd_data->pctype, ret);
1174                 }
1175         }
1176
1177         return err ? -EOPNOTSUPP : 0;
1178 }
1179
1180 /**
1181  * i40e_add_del_fdir_tcpv4 - Add/Remove TCPv4 Flow Director filters for
1182  * a specific flow spec
1183  * @vsi: pointer to the targeted VSI
1184  * @fd_data: the flow director data required from the FDir descriptor
1185  * @ethtool_rx_flow_spec: the flow spec
1186  * @add: true adds a filter, false removes it
1187  *
1188  * Returns 0 if the filters were successfully added or removed
1189  **/
1190 static int i40e_add_del_fdir_tcpv4(struct i40e_vsi *vsi,
1191                                    struct i40e_fdir_data *fd_data,
1192                                    struct ethtool_rx_flow_spec *fsp, bool add)
1193 {
1194         struct i40e_pf *pf = vsi->back;
1195         struct tcphdr *tcp;
1196         struct iphdr *ip;
1197         bool err = false;
1198         int ret;
1199
1200         ip = (struct iphdr *)(fd_data->raw_packet + IP_HEADER_OFFSET);
1201         tcp = (struct tcphdr *)(fd_data->raw_packet + IP_HEADER_OFFSET
1202               + sizeof(struct iphdr));
1203
1204         ip->daddr = fsp->h_u.tcp_ip4_spec.ip4dst;
1205         tcp->dest = fsp->h_u.tcp_ip4_spec.pdst;
1206
1207         fd_data->pctype = I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN;
1208         ret = i40e_program_fdir_filter(fd_data, pf, add);
1209
1210         if (ret) {
1211                 dev_info(&pf->pdev->dev,
1212                          "Filter command send failed for PCTYPE %d (ret = %d)\n",
1213                          fd_data->pctype, ret);
1214                 err = true;
1215         } else {
1216                 dev_info(&pf->pdev->dev, "Filter OK for PCTYPE %d (ret = %d)\n",
1217                          fd_data->pctype, ret);
1218         }
1219
1220         ip->saddr = fsp->h_u.tcp_ip4_spec.ip4src;
1221         tcp->source = fsp->h_u.tcp_ip4_spec.psrc;
1222
1223         fd_data->pctype = I40E_FILTER_PCTYPE_NONF_IPV4_TCP;
1224
1225         ret = i40e_program_fdir_filter(fd_data, pf, add);
1226         if (ret) {
1227                 dev_info(&pf->pdev->dev,
1228                          "Filter command send failed for PCTYPE %d (ret = %d)\n",
1229                          fd_data->pctype, ret);
1230                 err = true;
1231         } else {
1232                 dev_info(&pf->pdev->dev, "Filter OK for PCTYPE %d (ret = %d)\n",
1233                           fd_data->pctype, ret);
1234         }
1235
1236         return err ? -EOPNOTSUPP : 0;
1237 }
1238
1239 /**
1240  * i40e_add_del_fdir_sctpv4 - Add/Remove SCTPv4 Flow Director filters for
1241  * a specific flow spec
1242  * @vsi: pointer to the targeted VSI
1243  * @fd_data: the flow director data required from the FDir descriptor
1244  * @ethtool_rx_flow_spec: the flow spec
1245  * @add: true adds a filter, false removes it
1246  *
1247  * Returns 0 if the filters were successfully added or removed
1248  **/
1249 static int i40e_add_del_fdir_sctpv4(struct i40e_vsi *vsi,
1250                                     struct i40e_fdir_data *fd_data,
1251                                     struct ethtool_rx_flow_spec *fsp, bool add)
1252 {
1253         return -EOPNOTSUPP;
1254 }
1255
1256 /**
1257  * i40e_add_del_fdir_ipv4 - Add/Remove IPv4 Flow Director filters for
1258  * a specific flow spec
1259  * @vsi: pointer to the targeted VSI
1260  * @fd_data: the flow director data required for the FDir descriptor
1261  * @fsp: the ethtool flow spec
1262  * @add: true adds a filter, false removes it
1263  *
1264  * Returns 0 if the filters were successfully added or removed
1265  **/
1266 static int i40e_add_del_fdir_ipv4(struct i40e_vsi *vsi,
1267                                   struct i40e_fdir_data *fd_data,
1268                                   struct ethtool_rx_flow_spec *fsp, bool add)
1269 {
1270         struct i40e_pf *pf = vsi->back;
1271         struct iphdr *ip;
1272         bool err = false;
1273         int ret;
1274         int i;
1275
1276         ip = (struct iphdr *)(fd_data->raw_packet + IP_HEADER_OFFSET);
1277
1278         ip->saddr = fsp->h_u.usr_ip4_spec.ip4src;
1279         ip->daddr = fsp->h_u.usr_ip4_spec.ip4dst;
1280         ip->protocol = fsp->h_u.usr_ip4_spec.proto;
1281
1282         for (i = I40E_FILTER_PCTYPE_NONF_IPV4_OTHER;
1283              i <= I40E_FILTER_PCTYPE_FRAG_IPV4; i++) {
1284                 fd_data->pctype = i;
1285                 ret = i40e_program_fdir_filter(fd_data, pf, add);
1286
1287                 if (ret) {
1288                         dev_info(&pf->pdev->dev,
1289                                  "Filter command send failed for PCTYPE %d (ret = %d)\n",
1290                                  fd_data->pctype, ret);
1291                         err = true;
1292                 } else {
1293                         dev_info(&pf->pdev->dev,
1294                                  "Filter OK for PCTYPE %d (ret = %d)\n",
1295                                  fd_data->pctype, ret);
1296                 }
1297         }
1298
1299         return err ? -EOPNOTSUPP : 0;
1300 }
1301
1302 /**
1303  * i40e_add_del_fdir_ethtool - Add/Remove Flow Director filters for
1304  * a specific flow spec based on their protocol
1305  * @vsi: pointer to the targeted VSI
1306  * @cmd: command to get or set RX flow classification rules
1307  * @add: true adds a filter, false removes it
1308  *
1309  * Returns 0 if the filters were successfully added or removed
1310  **/
1311 static int i40e_add_del_fdir_ethtool(struct i40e_vsi *vsi,
1312                         struct ethtool_rxnfc *cmd, bool add)
1313 {
1314         struct i40e_fdir_data fd_data;
1315         int ret = -EINVAL;
1316         struct i40e_pf *pf;
1317         struct ethtool_rx_flow_spec *fsp =
1318                 (struct ethtool_rx_flow_spec *)&cmd->fs;
1319
1320         if (!vsi)
1321                 return -EINVAL;
1322
1323         pf = vsi->back;
1324
1325         if ((fsp->ring_cookie != RX_CLS_FLOW_DISC) &&
1326             (fsp->ring_cookie >= vsi->num_queue_pairs))
1327                 return -EINVAL;
1328
1329         /* Populate the Flow Director that we have at the moment
1330          * and allocate the raw packet buffer for the calling functions
1331          */
1332         fd_data.raw_packet = kzalloc(I40E_FDIR_MAX_RAW_PACKET_LOOKUP,
1333                                      GFP_KERNEL);
1334
1335         if (!fd_data.raw_packet) {
1336                 dev_info(&pf->pdev->dev, "Could not allocate memory\n");
1337                 return -ENOMEM;
1338         }
1339
1340         fd_data.q_index = fsp->ring_cookie;
1341         fd_data.flex_off = 0;
1342         fd_data.pctype = 0;
1343         fd_data.dest_vsi = vsi->id;
1344         fd_data.dest_ctl = 0;
1345         fd_data.fd_status = 0;
1346         fd_data.cnt_index = 0;
1347         fd_data.fd_id = 0;
1348
1349         switch (fsp->flow_type & ~FLOW_EXT) {
1350         case TCP_V4_FLOW:
1351                 ret = i40e_add_del_fdir_tcpv4(vsi, &fd_data, fsp, add);
1352                 break;
1353         case UDP_V4_FLOW:
1354                 ret = i40e_add_del_fdir_udpv4(vsi, &fd_data, fsp, add);
1355                 break;
1356         case SCTP_V4_FLOW:
1357                 ret = i40e_add_del_fdir_sctpv4(vsi, &fd_data, fsp, add);
1358                 break;
1359         case IPV4_FLOW:
1360                 ret = i40e_add_del_fdir_ipv4(vsi, &fd_data, fsp, add);
1361                 break;
1362         case IP_USER_FLOW:
1363                 switch (fsp->h_u.usr_ip4_spec.proto) {
1364                 case IPPROTO_TCP:
1365                         ret = i40e_add_del_fdir_tcpv4(vsi, &fd_data, fsp, add);
1366                         break;
1367                 case IPPROTO_UDP:
1368                         ret = i40e_add_del_fdir_udpv4(vsi, &fd_data, fsp, add);
1369                         break;
1370                 case IPPROTO_SCTP:
1371                         ret = i40e_add_del_fdir_sctpv4(vsi, &fd_data, fsp, add);
1372                         break;
1373                 default:
1374                         ret = i40e_add_del_fdir_ipv4(vsi, &fd_data, fsp, add);
1375                         break;
1376                 }
1377                 break;
1378         default:
1379                 dev_info(&pf->pdev->dev, "Could not specify spec type\n");
1380                 ret = -EINVAL;
1381         }
1382
1383         kfree(fd_data.raw_packet);
1384         fd_data.raw_packet = NULL;
1385
1386         return ret;
1387 }
1388 /**
1389  * i40e_set_rxnfc - command to set RX flow classification rules
1390  * @netdev: network interface device structure
1391  * @cmd: ethtool rxnfc command
1392  *
1393  * Returns Success if the command is supported.
1394  **/
1395 static int i40e_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd)
1396 {
1397         struct i40e_netdev_priv *np = netdev_priv(netdev);
1398         struct i40e_vsi *vsi = np->vsi;
1399         struct i40e_pf *pf = vsi->back;
1400         int ret = -EOPNOTSUPP;
1401
1402         switch (cmd->cmd) {
1403         case ETHTOOL_SRXFH:
1404                 ret = i40e_set_rss_hash_opt(pf, cmd);
1405                 break;
1406         case ETHTOOL_SRXCLSRLINS:
1407                 ret = i40e_add_del_fdir_ethtool(vsi, cmd, true);
1408                 break;
1409         case ETHTOOL_SRXCLSRLDEL:
1410                 ret = i40e_add_del_fdir_ethtool(vsi, cmd, false);
1411                 break;
1412         default:
1413                 break;
1414         }
1415
1416         return ret;
1417 }
1418
1419 static const struct ethtool_ops i40e_ethtool_ops = {
1420         .get_settings           = i40e_get_settings,
1421         .get_drvinfo            = i40e_get_drvinfo,
1422         .get_regs_len           = i40e_get_regs_len,
1423         .get_regs               = i40e_get_regs,
1424         .nway_reset             = i40e_nway_reset,
1425         .get_link               = ethtool_op_get_link,
1426         .get_wol                = i40e_get_wol,
1427         .get_eeprom_len         = i40e_get_eeprom_len,
1428         .get_eeprom             = i40e_get_eeprom,
1429         .get_ringparam          = i40e_get_ringparam,
1430         .set_ringparam          = i40e_set_ringparam,
1431         .get_pauseparam         = i40e_get_pauseparam,
1432         .get_msglevel           = i40e_get_msglevel,
1433         .set_msglevel           = i40e_set_msglevel,
1434         .get_rxnfc              = i40e_get_rxnfc,
1435         .set_rxnfc              = i40e_set_rxnfc,
1436         .self_test              = i40e_diag_test,
1437         .get_strings            = i40e_get_strings,
1438         .set_phys_id            = i40e_set_phys_id,
1439         .get_sset_count         = i40e_get_sset_count,
1440         .get_ethtool_stats      = i40e_get_ethtool_stats,
1441         .get_coalesce           = i40e_get_coalesce,
1442         .set_coalesce           = i40e_set_coalesce,
1443         .get_ts_info            = i40e_get_ts_info,
1444 };
1445
1446 void i40e_set_ethtool_ops(struct net_device *netdev)
1447 {
1448         SET_ETHTOOL_OPS(netdev, &i40e_ethtool_ops);
1449 }