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

   1 /*******************************************************************************
   2  *
   3  * Intel Ethernet Controller XL710 Family Linux Driver
   4  * Copyright(c) 2013 - 2015 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
  16  * with this program.  If not, see <http://www.gnu.org/licenses/>.
  17  *
  18  * The full GNU General Public License is included in this distribution in
  19  * the file called "COPYING".
  20  *
  21  * Contact Information:
  22  * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
  23  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  24  *
  25  ******************************************************************************/
  26
  27 /* ethtool support for i40e */
  28
  29 #include "i40e.h"
  30 #include "i40e_diag.h"
  31
  32 struct i40e_stats {
  33         char stat_string[ETH_GSTRING_LEN];
  34         int sizeof_stat;
  35         int stat_offset;
  36 };
  37
  38 #define I40E_STAT(_type, _name, _stat) { \
  39         .stat_string = _name, \
  40         .sizeof_stat = FIELD_SIZEOF(_type, _stat), \
  41         .stat_offset = offsetof(_type, _stat) \
  42 }
  43
  44 #define I40E_NETDEV_STAT(_net_stat) \
  45                 I40E_STAT(struct rtnl_link_stats64, #_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 #define I40E_VEB_STAT(_name, _stat) \
  51                 I40E_STAT(struct i40e_veb, _name, _stat)
  52
  53 static const struct i40e_stats i40e_gstrings_net_stats[] = {
  54         I40E_NETDEV_STAT(rx_packets),
  55         I40E_NETDEV_STAT(tx_packets),
  56         I40E_NETDEV_STAT(rx_bytes),
  57         I40E_NETDEV_STAT(tx_bytes),
  58         I40E_NETDEV_STAT(rx_errors),
  59         I40E_NETDEV_STAT(tx_errors),
  60         I40E_NETDEV_STAT(rx_dropped),
  61         I40E_NETDEV_STAT(tx_dropped),
  62         I40E_NETDEV_STAT(collisions),
  63         I40E_NETDEV_STAT(rx_length_errors),
  64         I40E_NETDEV_STAT(rx_crc_errors),
  65 };
  66
  67 static const struct i40e_stats i40e_gstrings_veb_stats[] = {
  68         I40E_VEB_STAT("rx_bytes", stats.rx_bytes),
  69         I40E_VEB_STAT("tx_bytes", stats.tx_bytes),
  70         I40E_VEB_STAT("rx_unicast", stats.rx_unicast),
  71         I40E_VEB_STAT("tx_unicast", stats.tx_unicast),
  72         I40E_VEB_STAT("rx_multicast", stats.rx_multicast),
  73         I40E_VEB_STAT("tx_multicast", stats.tx_multicast),
  74         I40E_VEB_STAT("rx_broadcast", stats.rx_broadcast),
  75         I40E_VEB_STAT("tx_broadcast", stats.tx_broadcast),
  76         I40E_VEB_STAT("rx_discards", stats.rx_discards),
  77         I40E_VEB_STAT("tx_discards", stats.tx_discards),
  78         I40E_VEB_STAT("tx_errors", stats.tx_errors),
  79         I40E_VEB_STAT("rx_unknown_protocol", stats.rx_unknown_protocol),
  80 };
  81
  82 static const struct i40e_stats i40e_gstrings_misc_stats[] = {
  83         I40E_VSI_STAT("rx_unicast", eth_stats.rx_unicast),
  84         I40E_VSI_STAT("tx_unicast", eth_stats.tx_unicast),
  85         I40E_VSI_STAT("rx_multicast", eth_stats.rx_multicast),
  86         I40E_VSI_STAT("tx_multicast", eth_stats.tx_multicast),
  87         I40E_VSI_STAT("rx_broadcast", eth_stats.rx_broadcast),
  88         I40E_VSI_STAT("tx_broadcast", eth_stats.tx_broadcast),
  89         I40E_VSI_STAT("rx_unknown_protocol", eth_stats.rx_unknown_protocol),
  90         I40E_VSI_STAT("tx_linearize", tx_linearize),
  91 };
  92
  93 /* These PF_STATs might look like duplicates of some NETDEV_STATs,
  94  * but they are separate.  This device supports Virtualization, and
  95  * as such might have several netdevs supporting VMDq and FCoE going
  96  * through a single port.  The NETDEV_STATs are for individual netdevs
  97  * seen at the top of the stack, and the PF_STATs are for the physical
  98  * function at the bottom of the stack hosting those netdevs.
  99  *
 100  * The PF_STATs are appended to the netdev stats only when ethtool -S
 101  * is queried on the base PF netdev, not on the VMDq or FCoE netdev.
 102  */
 103 static struct i40e_stats i40e_gstrings_stats[] = {
 104         I40E_PF_STAT("rx_bytes", stats.eth.rx_bytes),
 105         I40E_PF_STAT("tx_bytes", stats.eth.tx_bytes),
 106         I40E_PF_STAT("rx_unicast", stats.eth.rx_unicast),
 107         I40E_PF_STAT("tx_unicast", stats.eth.tx_unicast),
 108         I40E_PF_STAT("rx_multicast", stats.eth.rx_multicast),
 109         I40E_PF_STAT("tx_multicast", stats.eth.tx_multicast),
 110         I40E_PF_STAT("rx_broadcast", stats.eth.rx_broadcast),
 111         I40E_PF_STAT("tx_broadcast", stats.eth.tx_broadcast),
 112         I40E_PF_STAT("tx_errors", stats.eth.tx_errors),
 113         I40E_PF_STAT("rx_dropped", stats.eth.rx_discards),
 114         I40E_PF_STAT("tx_dropped_link_down", stats.tx_dropped_link_down),
 115         I40E_PF_STAT("rx_crc_errors", stats.crc_errors),
 116         I40E_PF_STAT("illegal_bytes", stats.illegal_bytes),
 117         I40E_PF_STAT("mac_local_faults", stats.mac_local_faults),
 118         I40E_PF_STAT("mac_remote_faults", stats.mac_remote_faults),
 119         I40E_PF_STAT("tx_timeout", tx_timeout_count),
 120         I40E_PF_STAT("rx_csum_bad", hw_csum_rx_error),
 121         I40E_PF_STAT("rx_length_errors", stats.rx_length_errors),
 122         I40E_PF_STAT("link_xon_rx", stats.link_xon_rx),
 123         I40E_PF_STAT("link_xoff_rx", stats.link_xoff_rx),
 124         I40E_PF_STAT("link_xon_tx", stats.link_xon_tx),
 125         I40E_PF_STAT("link_xoff_tx", stats.link_xoff_tx),
 126         I40E_PF_STAT("rx_size_64", stats.rx_size_64),
 127         I40E_PF_STAT("rx_size_127", stats.rx_size_127),
 128         I40E_PF_STAT("rx_size_255", stats.rx_size_255),
 129         I40E_PF_STAT("rx_size_511", stats.rx_size_511),
 130         I40E_PF_STAT("rx_size_1023", stats.rx_size_1023),
 131         I40E_PF_STAT("rx_size_1522", stats.rx_size_1522),
 132         I40E_PF_STAT("rx_size_big", stats.rx_size_big),
 133         I40E_PF_STAT("tx_size_64", stats.tx_size_64),
 134         I40E_PF_STAT("tx_size_127", stats.tx_size_127),
 135         I40E_PF_STAT("tx_size_255", stats.tx_size_255),
 136         I40E_PF_STAT("tx_size_511", stats.tx_size_511),
 137         I40E_PF_STAT("tx_size_1023", stats.tx_size_1023),
 138         I40E_PF_STAT("tx_size_1522", stats.tx_size_1522),
 139         I40E_PF_STAT("tx_size_big", stats.tx_size_big),
 140         I40E_PF_STAT("rx_undersize", stats.rx_undersize),
 141         I40E_PF_STAT("rx_fragments", stats.rx_fragments),
 142         I40E_PF_STAT("rx_oversize", stats.rx_oversize),
 143         I40E_PF_STAT("rx_jabber", stats.rx_jabber),
 144         I40E_PF_STAT("VF_admin_queue_requests", vf_aq_requests),
 145         I40E_PF_STAT("rx_hwtstamp_cleared", rx_hwtstamp_cleared),
 146         I40E_PF_STAT("fdir_flush_cnt", fd_flush_cnt),
 147         I40E_PF_STAT("fdir_atr_match", stats.fd_atr_match),
 148         I40E_PF_STAT("fdir_atr_tunnel_match", stats.fd_atr_tunnel_match),
 149         I40E_PF_STAT("fdir_atr_status", stats.fd_atr_status),
 150         I40E_PF_STAT("fdir_sb_match", stats.fd_sb_match),
 151         I40E_PF_STAT("fdir_sb_status", stats.fd_sb_status),
 152
 153         /* LPI stats */
 154         I40E_PF_STAT("tx_lpi_status", stats.tx_lpi_status),
 155         I40E_PF_STAT("rx_lpi_status", stats.rx_lpi_status),
 156         I40E_PF_STAT("tx_lpi_count", stats.tx_lpi_count),
 157         I40E_PF_STAT("rx_lpi_count", stats.rx_lpi_count),
 158 };
 159
 160 #ifdef I40E_FCOE
 161 static const struct i40e_stats i40e_gstrings_fcoe_stats[] = {
 162         I40E_VSI_STAT("fcoe_bad_fccrc", fcoe_stats.fcoe_bad_fccrc),
 163         I40E_VSI_STAT("rx_fcoe_dropped", fcoe_stats.rx_fcoe_dropped),
 164         I40E_VSI_STAT("rx_fcoe_packets", fcoe_stats.rx_fcoe_packets),
 165         I40E_VSI_STAT("rx_fcoe_dwords", fcoe_stats.rx_fcoe_dwords),
 166         I40E_VSI_STAT("fcoe_ddp_count", fcoe_stats.fcoe_ddp_count),
 167         I40E_VSI_STAT("fcoe_last_error", fcoe_stats.fcoe_last_error),
 168         I40E_VSI_STAT("tx_fcoe_packets", fcoe_stats.tx_fcoe_packets),
 169         I40E_VSI_STAT("tx_fcoe_dwords", fcoe_stats.tx_fcoe_dwords),
 170 };
 171
 172 #endif /* I40E_FCOE */
 173 #define I40E_QUEUE_STATS_LEN(n) \
 174         (((struct i40e_netdev_priv *)netdev_priv((n)))->vsi->num_queue_pairs \
 175             * 2 /* Tx and Rx together */                                     \
 176             * (sizeof(struct i40e_queue_stats) / sizeof(u64)))
 177 #define I40E_GLOBAL_STATS_LEN   ARRAY_SIZE(i40e_gstrings_stats)
 178 #define I40E_NETDEV_STATS_LEN   ARRAY_SIZE(i40e_gstrings_net_stats)
 179 #define I40E_MISC_STATS_LEN     ARRAY_SIZE(i40e_gstrings_misc_stats)
 180 #ifdef I40E_FCOE
 181 #define I40E_FCOE_STATS_LEN     ARRAY_SIZE(i40e_gstrings_fcoe_stats)
 182 #define I40E_VSI_STATS_LEN(n)   (I40E_NETDEV_STATS_LEN + \
 183                                  I40E_FCOE_STATS_LEN + \
 184                                  I40E_MISC_STATS_LEN + \
 185                                  I40E_QUEUE_STATS_LEN((n)))
 186 #else
 187 #define I40E_VSI_STATS_LEN(n)   (I40E_NETDEV_STATS_LEN + \
 188                                  I40E_MISC_STATS_LEN + \
 189                                  I40E_QUEUE_STATS_LEN((n)))
 190 #endif /* I40E_FCOE */
 191 #define I40E_PFC_STATS_LEN ( \
 192                 (FIELD_SIZEOF(struct i40e_pf, stats.priority_xoff_rx) + \
 193                  FIELD_SIZEOF(struct i40e_pf, stats.priority_xon_rx) + \
 194                  FIELD_SIZEOF(struct i40e_pf, stats.priority_xoff_tx) + \
 195                  FIELD_SIZEOF(struct i40e_pf, stats.priority_xon_tx) + \
 196                  FIELD_SIZEOF(struct i40e_pf, stats.priority_xon_2_xoff)) \
 197                  / sizeof(u64))
 198 #define I40E_VEB_TC_STATS_LEN ( \
 199                 (FIELD_SIZEOF(struct i40e_veb, tc_stats.tc_rx_packets) + \
 200                  FIELD_SIZEOF(struct i40e_veb, tc_stats.tc_rx_bytes) + \
 201                  FIELD_SIZEOF(struct i40e_veb, tc_stats.tc_tx_packets) + \
 202                  FIELD_SIZEOF(struct i40e_veb, tc_stats.tc_tx_bytes)) \
 203                  / sizeof(u64))
 204 #define I40E_VEB_STATS_LEN      ARRAY_SIZE(i40e_gstrings_veb_stats)
 205 #define I40E_VEB_STATS_TOTAL    (I40E_VEB_STATS_LEN + I40E_VEB_TC_STATS_LEN)
 206 #define I40E_PF_STATS_LEN(n)    (I40E_GLOBAL_STATS_LEN + \
 207                                  I40E_PFC_STATS_LEN + \
 208                                  I40E_VSI_STATS_LEN((n)))
 209
 210 enum i40e_ethtool_test_id {
 211         I40E_ETH_TEST_REG = 0,
 212         I40E_ETH_TEST_EEPROM,
 213         I40E_ETH_TEST_INTR,
 214         I40E_ETH_TEST_LOOPBACK,
 215         I40E_ETH_TEST_LINK,
 216 };
 217
 218 static const char i40e_gstrings_test[][ETH_GSTRING_LEN] = {
 219         "Register test  (offline)",
 220         "Eeprom test    (offline)",
 221         "Interrupt test (offline)",
 222         "Loopback test  (offline)",
 223         "Link test   (on/offline)"
 224 };
 225
 226 #define I40E_TEST_LEN (sizeof(i40e_gstrings_test) / ETH_GSTRING_LEN)
 227
 228 static const char i40e_priv_flags_strings[][ETH_GSTRING_LEN] = {
 229         "NPAR",
 230         "LinkPolling",
 231         "flow-director-atr",
 232         "veb-stats",
 233 };
 234
 235 #define I40E_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_priv_flags_strings)
 236
 237 /**
 238  * i40e_partition_setting_complaint - generic complaint for MFP restriction
 239  * @pf: the PF struct
 240  **/
 241 static void i40e_partition_setting_complaint(struct i40e_pf *pf)
 242 {
 243         dev_info(&pf->pdev->dev,
 244                  "The link settings are allowed to be changed only from the first partition of a given port. Please switch to the first partition in order to change the setting.\n");
 245 }
 246
 247 /**
 248  * i40e_get_settings_link_up - Get the Link settings for when link is up
 249  * @hw: hw structure
 250  * @ecmd: ethtool command to fill in
 251  * @netdev: network interface device structure
 252  *
 253  **/
 254 static void i40e_get_settings_link_up(struct i40e_hw *hw,
 255                                       struct ethtool_cmd *ecmd,
 256                                       struct net_device *netdev,
 257                                       struct i40e_pf *pf)
 258 {
 259         struct i40e_link_status *hw_link_info = &hw->phy.link_info;
 260         u32 link_speed = hw_link_info->link_speed;
 261
 262         /* Initialize supported and advertised settings based on phy settings */
 263         switch (hw_link_info->phy_type) {
 264         case I40E_PHY_TYPE_40GBASE_CR4:
 265         case I40E_PHY_TYPE_40GBASE_CR4_CU:
 266                 ecmd->supported = SUPPORTED_Autoneg |
 267                                   SUPPORTED_40000baseCR4_Full;
 268                 ecmd->advertising = ADVERTISED_Autoneg |
 269                                     ADVERTISED_40000baseCR4_Full;
 270                 break;
 271         case I40E_PHY_TYPE_XLAUI:
 272         case I40E_PHY_TYPE_XLPPI:
 273         case I40E_PHY_TYPE_40GBASE_AOC:
 274                 ecmd->supported = SUPPORTED_40000baseCR4_Full;
 275                 break;
 276         case I40E_PHY_TYPE_40GBASE_SR4:
 277                 ecmd->supported = SUPPORTED_40000baseSR4_Full;
 278                 break;
 279         case I40E_PHY_TYPE_40GBASE_LR4:
 280                 ecmd->supported = SUPPORTED_40000baseLR4_Full;
 281                 break;
 282         case I40E_PHY_TYPE_10GBASE_SR:
 283         case I40E_PHY_TYPE_10GBASE_LR:
 284         case I40E_PHY_TYPE_1000BASE_SX:
 285         case I40E_PHY_TYPE_1000BASE_LX:
 286                 ecmd->supported = SUPPORTED_10000baseT_Full;
 287                 if (hw_link_info->module_type[2] &
 288                     I40E_MODULE_TYPE_1000BASE_SX ||
 289                     hw_link_info->module_type[2] &
 290                     I40E_MODULE_TYPE_1000BASE_LX) {
 291                         ecmd->supported |= SUPPORTED_1000baseT_Full;
 292                         if (hw_link_info->requested_speeds &
 293                             I40E_LINK_SPEED_1GB)
 294                                 ecmd->advertising |= ADVERTISED_1000baseT_Full;
 295                 }
 296                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 297                         ecmd->advertising |= ADVERTISED_10000baseT_Full;
 298                 break;
 299         case I40E_PHY_TYPE_10GBASE_T:
 300         case I40E_PHY_TYPE_1000BASE_T:
 301                 ecmd->supported = SUPPORTED_Autoneg |
 302                                   SUPPORTED_10000baseT_Full |
 303                                   SUPPORTED_1000baseT_Full;
 304                 ecmd->advertising = ADVERTISED_Autoneg;
 305                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 306                         ecmd->advertising |= ADVERTISED_10000baseT_Full;
 307                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 308                         ecmd->advertising |= ADVERTISED_1000baseT_Full;
 309                 break;
 310         case I40E_PHY_TYPE_1000BASE_T_OPTICAL:
 311                 ecmd->supported = SUPPORTED_Autoneg |
 312                                   SUPPORTED_1000baseT_Full;
 313                 ecmd->advertising = ADVERTISED_Autoneg |
 314                                     ADVERTISED_1000baseT_Full;
 315                 break;
 316         case I40E_PHY_TYPE_100BASE_TX:
 317                 ecmd->supported = SUPPORTED_Autoneg |
 318                                   SUPPORTED_100baseT_Full;
 319                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB)
 320                         ecmd->advertising |= ADVERTISED_100baseT_Full;
 321                 break;
 322         case I40E_PHY_TYPE_10GBASE_CR1_CU:
 323         case I40E_PHY_TYPE_10GBASE_CR1:
 324                 ecmd->supported = SUPPORTED_Autoneg |
 325                                   SUPPORTED_10000baseT_Full;
 326                 ecmd->advertising = ADVERTISED_Autoneg |
 327                                     ADVERTISED_10000baseT_Full;
 328                 break;
 329         case I40E_PHY_TYPE_XAUI:
 330         case I40E_PHY_TYPE_XFI:
 331         case I40E_PHY_TYPE_SFI:
 332         case I40E_PHY_TYPE_10GBASE_SFPP_CU:
 333         case I40E_PHY_TYPE_10GBASE_AOC:
 334                 ecmd->supported = SUPPORTED_10000baseT_Full;
 335                 break;
 336         case I40E_PHY_TYPE_SGMII:
 337                 ecmd->supported = SUPPORTED_Autoneg |
 338                                   SUPPORTED_1000baseT_Full;
 339                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 340                         ecmd->advertising |= ADVERTISED_1000baseT_Full;
 341                 if (pf->hw.mac.type == I40E_MAC_X722) {
 342                         ecmd->supported |= SUPPORTED_100baseT_Full;
 343                         if (hw_link_info->requested_speeds &
 344                             I40E_LINK_SPEED_100MB)
 345                                 ecmd->advertising |= ADVERTISED_100baseT_Full;
 346                 }
 347                 break;
 348         /* Backplane is set based on supported phy types in get_settings
 349          * so don't set anything here but don't warn either
 350          */
 351         case I40E_PHY_TYPE_40GBASE_KR4:
 352         case I40E_PHY_TYPE_20GBASE_KR2:
 353         case I40E_PHY_TYPE_10GBASE_KR:
 354         case I40E_PHY_TYPE_10GBASE_KX4:
 355         case I40E_PHY_TYPE_1000BASE_KX:
 356                 break;
 357         default:
 358                 /* if we got here and link is up something bad is afoot */
 359                 netdev_info(netdev, "WARNING: Link is up but PHY type 0x%x is not recognized.\n",
 360                             hw_link_info->phy_type);
 361         }
 362
 363         /* Set speed and duplex */
 364         switch (link_speed) {
 365         case I40E_LINK_SPEED_40GB:
 366                 ethtool_cmd_speed_set(ecmd, SPEED_40000);
 367                 break;
 368         case I40E_LINK_SPEED_20GB:
 369                 ethtool_cmd_speed_set(ecmd, SPEED_20000);
 370                 break;
 371         case I40E_LINK_SPEED_10GB:
 372                 ethtool_cmd_speed_set(ecmd, SPEED_10000);
 373                 break;
 374         case I40E_LINK_SPEED_1GB:
 375                 ethtool_cmd_speed_set(ecmd, SPEED_1000);
 376                 break;
 377         case I40E_LINK_SPEED_100MB:
 378                 ethtool_cmd_speed_set(ecmd, SPEED_100);
 379                 break;
 380         default:
 381                 break;
 382         }
 383         ecmd->duplex = DUPLEX_FULL;
 384 }
 385
 386 /**
 387  * i40e_get_settings_link_down - Get the Link settings for when link is down
 388  * @hw: hw structure
 389  * @ecmd: ethtool command to fill in
 390  *
 391  * Reports link settings that can be determined when link is down
 392  **/
 393 static void i40e_get_settings_link_down(struct i40e_hw *hw,
 394                                         struct ethtool_cmd *ecmd,
 395                                         struct i40e_pf *pf)
 396 {
 397         enum i40e_aq_capabilities_phy_type phy_types = hw->phy.phy_types;
 398
 399         /* link is down and the driver needs to fall back on
 400          * supported phy types to figure out what info to display
 401          */
 402         ecmd->supported = 0x0;
 403         ecmd->advertising = 0x0;
 404         if (phy_types & I40E_CAP_PHY_TYPE_SGMII) {
 405                 ecmd->supported |= SUPPORTED_Autoneg |
 406                                    SUPPORTED_1000baseT_Full;
 407                 ecmd->advertising |= ADVERTISED_Autoneg |
 408                                      ADVERTISED_1000baseT_Full;
 409                 if (pf->hw.mac.type == I40E_MAC_X722) {
 410                         ecmd->supported |= SUPPORTED_100baseT_Full;
 411                         ecmd->advertising |= ADVERTISED_100baseT_Full;
 412                 }
 413         }
 414         if (phy_types & I40E_CAP_PHY_TYPE_XAUI ||
 415             phy_types & I40E_CAP_PHY_TYPE_XFI ||
 416             phy_types & I40E_CAP_PHY_TYPE_SFI ||
 417             phy_types & I40E_CAP_PHY_TYPE_10GBASE_SFPP_CU ||
 418             phy_types & I40E_CAP_PHY_TYPE_10GBASE_AOC)
 419                 ecmd->supported |= SUPPORTED_10000baseT_Full;
 420         if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1_CU ||
 421             phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1 ||
 422             phy_types & I40E_CAP_PHY_TYPE_10GBASE_T ||
 423             phy_types & I40E_CAP_PHY_TYPE_10GBASE_SR ||
 424             phy_types & I40E_CAP_PHY_TYPE_10GBASE_LR) {
 425                 ecmd->supported |= SUPPORTED_Autoneg |
 426                                    SUPPORTED_10000baseT_Full;
 427                 ecmd->advertising |= ADVERTISED_Autoneg |
 428                                      ADVERTISED_10000baseT_Full;
 429         }
 430         if (phy_types & I40E_CAP_PHY_TYPE_XLAUI ||
 431             phy_types & I40E_CAP_PHY_TYPE_XLPPI ||
 432             phy_types & I40E_CAP_PHY_TYPE_40GBASE_AOC)
 433                 ecmd->supported |= SUPPORTED_40000baseCR4_Full;
 434         if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4_CU ||
 435             phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4) {
 436                 ecmd->supported |= SUPPORTED_Autoneg |
 437                                   SUPPORTED_40000baseCR4_Full;
 438                 ecmd->advertising |= ADVERTISED_Autoneg |
 439                                     ADVERTISED_40000baseCR4_Full;
 440         }
 441         if ((phy_types & I40E_CAP_PHY_TYPE_100BASE_TX) &&
 442             !(phy_types & I40E_CAP_PHY_TYPE_1000BASE_T)) {
 443                 ecmd->supported |= SUPPORTED_Autoneg |
 444                                    SUPPORTED_100baseT_Full;
 445                 ecmd->advertising |= ADVERTISED_Autoneg |
 446                                      ADVERTISED_100baseT_Full;
 447         }
 448         if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_T ||
 449             phy_types & I40E_CAP_PHY_TYPE_1000BASE_SX ||
 450             phy_types & I40E_CAP_PHY_TYPE_1000BASE_LX ||
 451             phy_types & I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL) {
 452                 ecmd->supported |= SUPPORTED_Autoneg |
 453                                    SUPPORTED_1000baseT_Full;
 454                 ecmd->advertising |= ADVERTISED_Autoneg |
 455                                      ADVERTISED_1000baseT_Full;
 456         }
 457         if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_SR4)
 458                 ecmd->supported |= SUPPORTED_40000baseSR4_Full;
 459         if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_LR4)
 460                 ecmd->supported |= SUPPORTED_40000baseLR4_Full;
 461
 462         /* With no link speed and duplex are unknown */
 463         ethtool_cmd_speed_set(ecmd, SPEED_UNKNOWN);
 464         ecmd->duplex = DUPLEX_UNKNOWN;
 465 }
 466
 467 /**
 468  * i40e_get_settings - Get Link Speed and Duplex settings
 469  * @netdev: network interface device structure
 470  * @ecmd: ethtool command
 471  *
 472  * Reports speed/duplex settings based on media_type
 473  **/
 474 static int i40e_get_settings(struct net_device *netdev,
 475                              struct ethtool_cmd *ecmd)
 476 {
 477         struct i40e_netdev_priv *np = netdev_priv(netdev);
 478         struct i40e_pf *pf = np->vsi->back;
 479         struct i40e_hw *hw = &pf->hw;
 480         struct i40e_link_status *hw_link_info = &hw->phy.link_info;
 481         bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP;
 482
 483         if (link_up)
 484                 i40e_get_settings_link_up(hw, ecmd, netdev, pf);
 485         else
 486                 i40e_get_settings_link_down(hw, ecmd, pf);
 487
 488         /* Now set the settings that don't rely on link being up/down */
 489
 490         /* For backplane, supported and advertised are only reliant on the
 491          * phy types the NVM specifies are supported.
 492          */
 493         if (hw->device_id == I40E_DEV_ID_KX_B ||
 494             hw->device_id == I40E_DEV_ID_KX_C ||
 495             hw->device_id == I40E_DEV_ID_20G_KR2 ||
 496             hw->device_id ==  I40E_DEV_ID_20G_KR2_A) {
 497                 ecmd->supported = SUPPORTED_Autoneg;
 498                 ecmd->advertising = ADVERTISED_Autoneg;
 499                 if (hw->phy.phy_types & I40E_CAP_PHY_TYPE_40GBASE_KR4) {
 500                         ecmd->supported |= SUPPORTED_40000baseKR4_Full;
 501                         ecmd->advertising |= ADVERTISED_40000baseKR4_Full;
 502                 }
 503                 if (hw->phy.phy_types & I40E_CAP_PHY_TYPE_20GBASE_KR2) {
 504                         ecmd->supported |= SUPPORTED_20000baseKR2_Full;
 505                         ecmd->advertising |= ADVERTISED_20000baseKR2_Full;
 506                 }
 507                 if (hw->phy.phy_types & I40E_CAP_PHY_TYPE_10GBASE_KR) {
 508                         ecmd->supported |= SUPPORTED_10000baseKR_Full;
 509                         ecmd->advertising |= ADVERTISED_10000baseKR_Full;
 510                 }
 511                 if (hw->phy.phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4) {
 512                         ecmd->supported |= SUPPORTED_10000baseKX4_Full;
 513                         ecmd->advertising |= ADVERTISED_10000baseKX4_Full;
 514                 }
 515                 if (hw->phy.phy_types & I40E_CAP_PHY_TYPE_1000BASE_KX) {
 516                         ecmd->supported |= SUPPORTED_1000baseKX_Full;
 517                         ecmd->advertising |= ADVERTISED_1000baseKX_Full;
 518                 }
 519         }
 520
 521         /* Set autoneg settings */
 522         ecmd->autoneg = ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
 523                           AUTONEG_ENABLE : AUTONEG_DISABLE);
 524
 525         switch (hw->phy.media_type) {
 526         case I40E_MEDIA_TYPE_BACKPLANE:
 527                 ecmd->supported |= SUPPORTED_Autoneg |
 528                                    SUPPORTED_Backplane;
 529                 ecmd->advertising |= ADVERTISED_Autoneg |
 530                                      ADVERTISED_Backplane;
 531                 ecmd->port = PORT_NONE;
 532                 break;
 533         case I40E_MEDIA_TYPE_BASET:
 534                 ecmd->supported |= SUPPORTED_TP;
 535                 ecmd->advertising |= ADVERTISED_TP;
 536                 ecmd->port = PORT_TP;
 537                 break;
 538         case I40E_MEDIA_TYPE_DA:
 539         case I40E_MEDIA_TYPE_CX4:
 540                 ecmd->supported |= SUPPORTED_FIBRE;
 541                 ecmd->advertising |= ADVERTISED_FIBRE;
 542                 ecmd->port = PORT_DA;
 543                 break;
 544         case I40E_MEDIA_TYPE_FIBER:
 545                 ecmd->supported |= SUPPORTED_FIBRE;
 546                 ecmd->port = PORT_FIBRE;
 547                 break;
 548         case I40E_MEDIA_TYPE_UNKNOWN:
 549         default:
 550                 ecmd->port = PORT_OTHER;
 551                 break;
 552         }
 553
 554         /* Set transceiver */
 555         ecmd->transceiver = XCVR_EXTERNAL;
 556
 557         /* Set flow control settings */
 558         ecmd->supported |= SUPPORTED_Pause;
 559
 560         switch (hw->fc.requested_mode) {
 561         case I40E_FC_FULL:
 562                 ecmd->advertising |= ADVERTISED_Pause;
 563                 break;
 564         case I40E_FC_TX_PAUSE:
 565                 ecmd->advertising |= ADVERTISED_Asym_Pause;
 566                 break;
 567         case I40E_FC_RX_PAUSE:
 568                 ecmd->advertising |= (ADVERTISED_Pause |
 569                                       ADVERTISED_Asym_Pause);
 570                 break;
 571         default:
 572                 ecmd->advertising &= ~(ADVERTISED_Pause |
 573                                        ADVERTISED_Asym_Pause);
 574                 break;
 575         }
 576
 577         return 0;
 578 }
 579
 580 /**
 581  * i40e_set_settings - Set Speed and Duplex
 582  * @netdev: network interface device structure
 583  * @ecmd: ethtool command
 584  *
 585  * Set speed/duplex per media_types advertised/forced
 586  **/
 587 static int i40e_set_settings(struct net_device *netdev,
 588                              struct ethtool_cmd *ecmd)
 589 {
 590         struct i40e_netdev_priv *np = netdev_priv(netdev);
 591         struct i40e_aq_get_phy_abilities_resp abilities;
 592         struct i40e_aq_set_phy_config config;
 593         struct i40e_pf *pf = np->vsi->back;
 594         struct i40e_vsi *vsi = np->vsi;
 595         struct i40e_hw *hw = &pf->hw;
 596         struct ethtool_cmd safe_ecmd;
 597         i40e_status status = 0;
 598         bool change = false;
 599         int err = 0;
 600         u8 autoneg;
 601         u32 advertise;
 602
 603         /* Changing port settings is not supported if this isn't the
 604          * port's controlling PF
 605          */
 606         if (hw->partition_id != 1) {
 607                 i40e_partition_setting_complaint(pf);
 608                 return -EOPNOTSUPP;
 609         }
 610
 611         if (vsi != pf->vsi[pf->lan_vsi])
 612                 return -EOPNOTSUPP;
 613
 614         if (hw->phy.media_type != I40E_MEDIA_TYPE_BASET &&
 615             hw->phy.media_type != I40E_MEDIA_TYPE_FIBER &&
 616             hw->phy.media_type != I40E_MEDIA_TYPE_BACKPLANE &&
 617             hw->phy.link_info.link_info & I40E_AQ_LINK_UP)
 618                 return -EOPNOTSUPP;
 619
 620         if (hw->device_id == I40E_DEV_ID_KX_B ||
 621             hw->device_id == I40E_DEV_ID_KX_C ||
 622             hw->device_id == I40E_DEV_ID_20G_KR2 ||
 623             hw->device_id == I40E_DEV_ID_20G_KR2_A) {
 624                 netdev_info(netdev, "Changing settings is not supported on backplane.\n");
 625                 return -EOPNOTSUPP;
 626         }
 627
 628         /* get our own copy of the bits to check against */
 629         memset(&safe_ecmd, 0, sizeof(struct ethtool_cmd));
 630         i40e_get_settings(netdev, &safe_ecmd);
 631
 632         /* save autoneg and speed out of ecmd */
 633         autoneg = ecmd->autoneg;
 634         advertise = ecmd->advertising;
 635
 636         /* set autoneg and speed back to what they currently are */
 637         ecmd->autoneg = safe_ecmd.autoneg;
 638         ecmd->advertising = safe_ecmd.advertising;
 639
 640         ecmd->cmd = safe_ecmd.cmd;
 641         /* If ecmd and safe_ecmd are not the same now, then they are
 642          * trying to set something that we do not support
 643          */
 644         if (memcmp(ecmd, &safe_ecmd, sizeof(struct ethtool_cmd)))
 645                 return -EOPNOTSUPP;
 646
 647         while (test_bit(__I40E_CONFIG_BUSY, &vsi->state))
 648                 usleep_range(1000, 2000);
 649
 650         /* Get the current phy config */
 651         status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities,
 652                                               NULL);
 653         if (status)
 654                 return -EAGAIN;
 655
 656         /* Copy abilities to config in case autoneg is not
 657          * set below
 658          */
 659         memset(&config, 0, sizeof(struct i40e_aq_set_phy_config));
 660         config.abilities = abilities.abilities;
 661
 662         /* Check autoneg */
 663         if (autoneg == AUTONEG_ENABLE) {
 664                 /* If autoneg was not already enabled */
 665                 if (!(hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED)) {
 666                         /* If autoneg is not supported, return error */
 667                         if (!(safe_ecmd.supported & SUPPORTED_Autoneg)) {
 668                                 netdev_info(netdev, "Autoneg not supported on this phy\n");
 669                                 return -EINVAL;
 670                         }
 671                         /* Autoneg is allowed to change */
 672                         config.abilities = abilities.abilities |
 673                                            I40E_AQ_PHY_ENABLE_AN;
 674                         change = true;
 675                 }
 676         } else {
 677                 /* If autoneg is currently enabled */
 678                 if (hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED) {
 679                         /* If autoneg is supported 10GBASE_T is the only PHY
 680                          * that can disable it, so otherwise return error
 681                          */
 682                         if (safe_ecmd.supported & SUPPORTED_Autoneg &&
 683                             hw->phy.link_info.phy_type !=
 684                             I40E_PHY_TYPE_10GBASE_T) {
 685                                 netdev_info(netdev, "Autoneg cannot be disabled on this phy\n");
 686                                 return -EINVAL;
 687                         }
 688                         /* Autoneg is allowed to change */
 689                         config.abilities = abilities.abilities &
 690                                            ~I40E_AQ_PHY_ENABLE_AN;
 691                         change = true;
 692                 }
 693         }
 694
 695         if (advertise & ~safe_ecmd.supported)
 696                 return -EINVAL;
 697
 698         if (advertise & ADVERTISED_100baseT_Full)
 699                 config.link_speed |= I40E_LINK_SPEED_100MB;
 700         if (advertise & ADVERTISED_1000baseT_Full ||
 701             advertise & ADVERTISED_1000baseKX_Full)
 702                 config.link_speed |= I40E_LINK_SPEED_1GB;
 703         if (advertise & ADVERTISED_10000baseT_Full ||
 704             advertise & ADVERTISED_10000baseKX4_Full ||
 705             advertise & ADVERTISED_10000baseKR_Full)
 706                 config.link_speed |= I40E_LINK_SPEED_10GB;
 707         if (advertise & ADVERTISED_20000baseKR2_Full)
 708                 config.link_speed |= I40E_LINK_SPEED_20GB;
 709         if (advertise & ADVERTISED_40000baseKR4_Full ||
 710             advertise & ADVERTISED_40000baseCR4_Full ||
 711             advertise & ADVERTISED_40000baseSR4_Full ||
 712             advertise & ADVERTISED_40000baseLR4_Full)
 713                 config.link_speed |= I40E_LINK_SPEED_40GB;
 714
 715         /* If speed didn't get set, set it to what it currently is.
 716          * This is needed because if advertise is 0 (as it is when autoneg
 717          * is disabled) then speed won't get set.
 718          */
 719         if (!config.link_speed)
 720                 config.link_speed = abilities.link_speed;
 721
 722         if (change || (abilities.link_speed != config.link_speed)) {
 723                 /* copy over the rest of the abilities */
 724                 config.phy_type = abilities.phy_type;
 725                 config.eee_capability = abilities.eee_capability;
 726                 config.eeer = abilities.eeer_val;
 727                 config.low_power_ctrl = abilities.d3_lpan;
 728
 729                 /* save the requested speeds */
 730                 hw->phy.link_info.requested_speeds = config.link_speed;
 731                 /* set link and auto negotiation so changes take effect */
 732                 config.abilities |= I40E_AQ_PHY_ENABLE_ATOMIC_LINK;
 733                 /* If link is up put link down */
 734                 if (hw->phy.link_info.link_info & I40E_AQ_LINK_UP) {
 735                         /* Tell the OS link is going down, the link will go
 736                          * back up when fw says it is ready asynchronously
 737                          */
 738                         i40e_print_link_message(vsi, false);
 739                         netif_carrier_off(netdev);
 740                         netif_tx_stop_all_queues(netdev);
 741                 }
 742
 743                 /* make the aq call */
 744                 status = i40e_aq_set_phy_config(hw, &config, NULL);
 745                 if (status) {
 746                         netdev_info(netdev, "Set phy config failed, err %s aq_err %s\n",
 747                                     i40e_stat_str(hw, status),
 748                                     i40e_aq_str(hw, hw->aq.asq_last_status));
 749                         return -EAGAIN;
 750                 }
 751
 752                 status = i40e_update_link_info(hw);
 753                 if (status)
 754                         netdev_dbg(netdev, "Updating link info failed with err %s aq_err %s\n",
 755                                    i40e_stat_str(hw, status),
 756                                    i40e_aq_str(hw, hw->aq.asq_last_status));
 757
 758         } else {
 759                 netdev_info(netdev, "Nothing changed, exiting without setting anything.\n");
 760         }
 761
 762         return err;
 763 }
 764
 765 static int i40e_nway_reset(struct net_device *netdev)
 766 {
 767         /* restart autonegotiation */
 768         struct i40e_netdev_priv *np = netdev_priv(netdev);
 769         struct i40e_pf *pf = np->vsi->back;
 770         struct i40e_hw *hw = &pf->hw;
 771         bool link_up = hw->phy.link_info.link_info & I40E_AQ_LINK_UP;
 772         i40e_status ret = 0;
 773
 774         ret = i40e_aq_set_link_restart_an(hw, link_up, NULL);
 775         if (ret) {
 776                 netdev_info(netdev, "link restart failed, err %s aq_err %s\n",
 777                             i40e_stat_str(hw, ret),
 778                             i40e_aq_str(hw, hw->aq.asq_last_status));
 779                 return -EIO;
 780         }
 781
 782         return 0;
 783 }
 784
 785 /**
 786  * i40e_get_pauseparam -  Get Flow Control status
 787  * Return tx/rx-pause status
 788  **/
 789 static void i40e_get_pauseparam(struct net_device *netdev,
 790                                 struct ethtool_pauseparam *pause)
 791 {
 792         struct i40e_netdev_priv *np = netdev_priv(netdev);
 793         struct i40e_pf *pf = np->vsi->back;
 794         struct i40e_hw *hw = &pf->hw;
 795         struct i40e_link_status *hw_link_info = &hw->phy.link_info;
 796         struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config;
 797
 798         pause->autoneg =
 799                 ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
 800                   AUTONEG_ENABLE : AUTONEG_DISABLE);
 801
 802         /* PFC enabled so report LFC as off */
 803         if (dcbx_cfg->pfc.pfcenable) {
 804                 pause->rx_pause = 0;
 805                 pause->tx_pause = 0;
 806                 return;
 807         }
 808
 809         if (hw->fc.current_mode == I40E_FC_RX_PAUSE) {
 810                 pause->rx_pause = 1;
 811         } else if (hw->fc.current_mode == I40E_FC_TX_PAUSE) {
 812                 pause->tx_pause = 1;
 813         } else if (hw->fc.current_mode == I40E_FC_FULL) {
 814                 pause->rx_pause = 1;
 815                 pause->tx_pause = 1;
 816         }
 817 }
 818
 819 /**
 820  * i40e_set_pauseparam - Set Flow Control parameter
 821  * @netdev: network interface device structure
 822  * @pause: return tx/rx flow control status
 823  **/
 824 static int i40e_set_pauseparam(struct net_device *netdev,
 825                                struct ethtool_pauseparam *pause)
 826 {
 827         struct i40e_netdev_priv *np = netdev_priv(netdev);
 828         struct i40e_pf *pf = np->vsi->back;
 829         struct i40e_vsi *vsi = np->vsi;
 830         struct i40e_hw *hw = &pf->hw;
 831         struct i40e_link_status *hw_link_info = &hw->phy.link_info;
 832         struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config;
 833         bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP;
 834         i40e_status status;
 835         u8 aq_failures;
 836         int err = 0;
 837
 838         /* Changing the port's flow control is not supported if this isn't the
 839          * port's controlling PF
 840          */
 841         if (hw->partition_id != 1) {
 842                 i40e_partition_setting_complaint(pf);
 843                 return -EOPNOTSUPP;
 844         }
 845
 846         if (vsi != pf->vsi[pf->lan_vsi])
 847                 return -EOPNOTSUPP;
 848
 849         if (pause->autoneg != ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
 850             AUTONEG_ENABLE : AUTONEG_DISABLE)) {
 851                 netdev_info(netdev, "To change autoneg please use: ethtool -s <dev> autoneg <on|off>\n");
 852                 return -EOPNOTSUPP;
 853         }
 854
 855         /* If we have link and don't have autoneg */
 856         if (!test_bit(__I40E_DOWN, &pf->state) &&
 857             !(hw_link_info->an_info & I40E_AQ_AN_COMPLETED)) {
 858                 /* Send message that it might not necessarily work*/
 859                 netdev_info(netdev, "Autoneg did not complete so changing settings may not result in an actual change.\n");
 860         }
 861
 862         if (dcbx_cfg->pfc.pfcenable) {
 863                 netdev_info(netdev,
 864                             "Priority flow control enabled. Cannot set link flow control.\n");
 865                 return -EOPNOTSUPP;
 866         }
 867
 868         if (pause->rx_pause && pause->tx_pause)
 869                 hw->fc.requested_mode = I40E_FC_FULL;
 870         else if (pause->rx_pause && !pause->tx_pause)
 871                 hw->fc.requested_mode = I40E_FC_RX_PAUSE;
 872         else if (!pause->rx_pause && pause->tx_pause)
 873                 hw->fc.requested_mode = I40E_FC_TX_PAUSE;
 874         else if (!pause->rx_pause && !pause->tx_pause)
 875                 hw->fc.requested_mode = I40E_FC_NONE;
 876         else
 877                  return -EINVAL;
 878
 879         /* Tell the OS link is going down, the link will go back up when fw
 880          * says it is ready asynchronously
 881          */
 882         i40e_print_link_message(vsi, false);
 883         netif_carrier_off(netdev);
 884         netif_tx_stop_all_queues(netdev);
 885
 886         /* Set the fc mode and only restart an if link is up*/
 887         status = i40e_set_fc(hw, &aq_failures, link_up);
 888
 889         if (aq_failures & I40E_SET_FC_AQ_FAIL_GET) {
 890                 netdev_info(netdev, "Set fc failed on the get_phy_capabilities call with err %s aq_err %s\n",
 891                             i40e_stat_str(hw, status),
 892                             i40e_aq_str(hw, hw->aq.asq_last_status));
 893                 err = -EAGAIN;
 894         }
 895         if (aq_failures & I40E_SET_FC_AQ_FAIL_SET) {
 896                 netdev_info(netdev, "Set fc failed on the set_phy_config call with err %s aq_err %s\n",
 897                             i40e_stat_str(hw, status),
 898                             i40e_aq_str(hw, hw->aq.asq_last_status));
 899                 err = -EAGAIN;
 900         }
 901         if (aq_failures & I40E_SET_FC_AQ_FAIL_UPDATE) {
 902                 netdev_info(netdev, "Set fc failed on the get_link_info call with err %s aq_err %s\n",
 903                             i40e_stat_str(hw, status),
 904                             i40e_aq_str(hw, hw->aq.asq_last_status));
 905                 err = -EAGAIN;
 906         }
 907
 908         if (!test_bit(__I40E_DOWN, &pf->state)) {
 909                 /* Give it a little more time to try to come back */
 910                 msleep(75);
 911                 if (!test_bit(__I40E_DOWN, &pf->state))
 912                         return i40e_nway_reset(netdev);
 913         }
 914
 915         return err;
 916 }
 917
 918 static u32 i40e_get_msglevel(struct net_device *netdev)
 919 {
 920         struct i40e_netdev_priv *np = netdev_priv(netdev);
 921         struct i40e_pf *pf = np->vsi->back;
 922
 923         return pf->msg_enable;
 924 }
 925
 926 static void i40e_set_msglevel(struct net_device *netdev, u32 data)
 927 {
 928         struct i40e_netdev_priv *np = netdev_priv(netdev);
 929         struct i40e_pf *pf = np->vsi->back;
 930
 931         if (I40E_DEBUG_USER & data)
 932                 pf->hw.debug_mask = data;
 933         pf->msg_enable = data;
 934 }
 935
 936 static int i40e_get_regs_len(struct net_device *netdev)
 937 {
 938         int reg_count = 0;
 939         int i;
 940
 941         for (i = 0; i40e_reg_list[i].offset != 0; i++)
 942                 reg_count += i40e_reg_list[i].elements;
 943
 944         return reg_count * sizeof(u32);
 945 }
 946
 947 static void i40e_get_regs(struct net_device *netdev, struct ethtool_regs *regs,
 948                           void *p)
 949 {
 950         struct i40e_netdev_priv *np = netdev_priv(netdev);
 951         struct i40e_pf *pf = np->vsi->back;
 952         struct i40e_hw *hw = &pf->hw;
 953         u32 *reg_buf = p;
 954         int i, j, ri;
 955         u32 reg;
 956
 957         /* Tell ethtool which driver-version-specific regs output we have.
 958          *
 959          * At some point, if we have ethtool doing special formatting of
 960          * this data, it will rely on this version number to know how to
 961          * interpret things.  Hence, this needs to be updated if/when the
 962          * diags register table is changed.
 963          */
 964         regs->version = 1;
 965
 966         /* loop through the diags reg table for what to print */
 967         ri = 0;
 968         for (i = 0; i40e_reg_list[i].offset != 0; i++) {
 969                 for (j = 0; j < i40e_reg_list[i].elements; j++) {
 970                         reg = i40e_reg_list[i].offset
 971                                 + (j * i40e_reg_list[i].stride);
 972                         reg_buf[ri++] = rd32(hw, reg);
 973                 }
 974         }
 975
 976 }
 977
 978 static int i40e_get_eeprom(struct net_device *netdev,
 979                            struct ethtool_eeprom *eeprom, u8 *bytes)
 980 {
 981         struct i40e_netdev_priv *np = netdev_priv(netdev);
 982         struct i40e_hw *hw = &np->vsi->back->hw;
 983         struct i40e_pf *pf = np->vsi->back;
 984         int ret_val = 0, len, offset;
 985         u8 *eeprom_buff;
 986         u16 i, sectors;
 987         bool last;
 988         u32 magic;
 989
 990 #define I40E_NVM_SECTOR_SIZE  4096
 991         if (eeprom->len == 0)
 992                 return -EINVAL;
 993
 994         /* check for NVMUpdate access method */
 995         magic = hw->vendor_id | (hw->device_id << 16);
 996         if (eeprom->magic && eeprom->magic != magic) {
 997                 struct i40e_nvm_access *cmd;
 998                 int errno;
 999
1000                 /* make sure it is the right magic for NVMUpdate */
1001                 if ((eeprom->magic >> 16) != hw->device_id)
1002                         return -EINVAL;
1003
1004                 cmd = (struct i40e_nvm_access *)eeprom;
1005                 ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno);
1006                 if (ret_val && (hw->debug_mask & I40E_DEBUG_NVM))
1007                         dev_info(&pf->pdev->dev,
1008                                  "NVMUpdate read failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n",
1009                                  ret_val, hw->aq.asq_last_status, errno,
1010                                  (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK),
1011                                  cmd->offset, cmd->data_size);
1012
1013                 return errno;
1014         }
1015
1016         /* normal ethtool get_eeprom support */
1017         eeprom->magic = hw->vendor_id | (hw->device_id << 16);
1018
1019         eeprom_buff = kzalloc(eeprom->len, GFP_KERNEL);
1020         if (!eeprom_buff)
1021                 return -ENOMEM;
1022
1023         ret_val = i40e_acquire_nvm(hw, I40E_RESOURCE_READ);
1024         if (ret_val) {
1025                 dev_info(&pf->pdev->dev,
1026                          "Failed Acquiring NVM resource for read err=%d status=0x%x\n",
1027                          ret_val, hw->aq.asq_last_status);
1028                 goto free_buff;
1029         }
1030
1031         sectors = eeprom->len / I40E_NVM_SECTOR_SIZE;
1032         sectors += (eeprom->len % I40E_NVM_SECTOR_SIZE) ? 1 : 0;
1033         len = I40E_NVM_SECTOR_SIZE;
1034         last = false;
1035         for (i = 0; i < sectors; i++) {
1036                 if (i == (sectors - 1)) {
1037                         len = eeprom->len - (I40E_NVM_SECTOR_SIZE * i);
1038                         last = true;
1039                 }
1040                 offset = eeprom->offset + (I40E_NVM_SECTOR_SIZE * i),
1041                 ret_val = i40e_aq_read_nvm(hw, 0x0, offset, len,
1042                                 (u8 *)eeprom_buff + (I40E_NVM_SECTOR_SIZE * i),
1043                                 last, NULL);
1044                 if (ret_val && hw->aq.asq_last_status == I40E_AQ_RC_EPERM) {
1045                         dev_info(&pf->pdev->dev,
1046                                  "read NVM failed, invalid offset 0x%x\n",
1047                                  offset);
1048                         break;
1049                 } else if (ret_val &&
1050                            hw->aq.asq_last_status == I40E_AQ_RC_EACCES) {
1051                         dev_info(&pf->pdev->dev,
1052                                  "read NVM failed, access, offset 0x%x\n",
1053                                  offset);
1054                         break;
1055                 } else if (ret_val) {
1056                         dev_info(&pf->pdev->dev,
1057                                  "read NVM failed offset %d err=%d status=0x%x\n",
1058                                  offset, ret_val, hw->aq.asq_last_status);
1059                         break;
1060                 }
1061         }
1062
1063         i40e_release_nvm(hw);
1064         memcpy(bytes, (u8 *)eeprom_buff, eeprom->len);
1065 free_buff:
1066         kfree(eeprom_buff);
1067         return ret_val;
1068 }
1069
1070 static int i40e_get_eeprom_len(struct net_device *netdev)
1071 {
1072         struct i40e_netdev_priv *np = netdev_priv(netdev);
1073         struct i40e_hw *hw = &np->vsi->back->hw;
1074         u32 val;
1075
1076         val = (rd32(hw, I40E_GLPCI_LBARCTRL)
1077                 & I40E_GLPCI_LBARCTRL_FL_SIZE_MASK)
1078                 >> I40E_GLPCI_LBARCTRL_FL_SIZE_SHIFT;
1079         /* register returns value in power of 2, 64Kbyte chunks. */
1080         val = (64 * 1024) * BIT(val);
1081         return val;
1082 }
1083
1084 static int i40e_set_eeprom(struct net_device *netdev,
1085                            struct ethtool_eeprom *eeprom, u8 *bytes)
1086 {
1087         struct i40e_netdev_priv *np = netdev_priv(netdev);
1088         struct i40e_hw *hw = &np->vsi->back->hw;
1089         struct i40e_pf *pf = np->vsi->back;
1090         struct i40e_nvm_access *cmd;
1091         int ret_val = 0;
1092         int errno;
1093         u32 magic;
1094
1095         /* normal ethtool set_eeprom is not supported */
1096         magic = hw->vendor_id | (hw->device_id << 16);
1097         if (eeprom->magic == magic)
1098                 return -EOPNOTSUPP;
1099
1100         /* check for NVMUpdate access method */
1101         if (!eeprom->magic || (eeprom->magic >> 16) != hw->device_id)
1102                 return -EINVAL;
1103
1104         if (test_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state) ||
1105             test_bit(__I40E_RESET_INTR_RECEIVED, &pf->state))
1106                 return -EBUSY;
1107
1108         cmd = (struct i40e_nvm_access *)eeprom;
1109         ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno);
1110         if (ret_val && (hw->debug_mask & I40E_DEBUG_NVM))
1111                 dev_info(&pf->pdev->dev,
1112                          "NVMUpdate write failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n",
1113                          ret_val, hw->aq.asq_last_status, errno,
1114                          (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK),
1115                          cmd->offset, cmd->data_size);
1116
1117         return errno;
1118 }
1119
1120 static void i40e_get_drvinfo(struct net_device *netdev,
1121                              struct ethtool_drvinfo *drvinfo)
1122 {
1123         struct i40e_netdev_priv *np = netdev_priv(netdev);
1124         struct i40e_vsi *vsi = np->vsi;
1125         struct i40e_pf *pf = vsi->back;
1126
1127         strlcpy(drvinfo->driver, i40e_driver_name, sizeof(drvinfo->driver));
1128         strlcpy(drvinfo->version, i40e_driver_version_str,
1129                 sizeof(drvinfo->version));
1130         strlcpy(drvinfo->fw_version, i40e_nvm_version_str(&pf->hw),
1131                 sizeof(drvinfo->fw_version));
1132         strlcpy(drvinfo->bus_info, pci_name(pf->pdev),
1133                 sizeof(drvinfo->bus_info));
1134 }
1135
1136 static void i40e_get_ringparam(struct net_device *netdev,
1137                                struct ethtool_ringparam *ring)
1138 {
1139         struct i40e_netdev_priv *np = netdev_priv(netdev);
1140         struct i40e_pf *pf = np->vsi->back;
1141         struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi];
1142
1143         ring->rx_max_pending = I40E_MAX_NUM_DESCRIPTORS;
1144         ring->tx_max_pending = I40E_MAX_NUM_DESCRIPTORS;
1145         ring->rx_mini_max_pending = 0;
1146         ring->rx_jumbo_max_pending = 0;
1147         ring->rx_pending = vsi->rx_rings[0]->count;
1148         ring->tx_pending = vsi->tx_rings[0]->count;
1149         ring->rx_mini_pending = 0;
1150         ring->rx_jumbo_pending = 0;
1151 }
1152
1153 static int i40e_set_ringparam(struct net_device *netdev,
1154                               struct ethtool_ringparam *ring)
1155 {
1156         struct i40e_ring *tx_rings = NULL, *rx_rings = NULL;
1157         struct i40e_netdev_priv *np = netdev_priv(netdev);
1158         struct i40e_vsi *vsi = np->vsi;
1159         struct i40e_pf *pf = vsi->back;
1160         u32 new_rx_count, new_tx_count;
1161         int i, err = 0;
1162
1163         if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
1164                 return -EINVAL;
1165
1166         if (ring->tx_pending > I40E_MAX_NUM_DESCRIPTORS ||
1167             ring->tx_pending < I40E_MIN_NUM_DESCRIPTORS ||
1168             ring->rx_pending > I40E_MAX_NUM_DESCRIPTORS ||
1169             ring->rx_pending < I40E_MIN_NUM_DESCRIPTORS) {
1170                 netdev_info(netdev,
1171                             "Descriptors requested (Tx: %d / Rx: %d) out of range [%d-%d]\n",
1172                             ring->tx_pending, ring->rx_pending,
1173                             I40E_MIN_NUM_DESCRIPTORS, I40E_MAX_NUM_DESCRIPTORS);
1174                 return -EINVAL;
1175         }
1176
1177         new_tx_count = ALIGN(ring->tx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE);
1178         new_rx_count = ALIGN(ring->rx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE);
1179
1180         /* if nothing to do return success */
1181         if ((new_tx_count == vsi->tx_rings[0]->count) &&
1182             (new_rx_count == vsi->rx_rings[0]->count))
1183                 return 0;
1184
1185         while (test_and_set_bit(__I40E_CONFIG_BUSY, &pf->state))
1186                 usleep_range(1000, 2000);
1187
1188         if (!netif_running(vsi->netdev)) {
1189                 /* simple case - set for the next time the netdev is started */
1190                 for (i = 0; i < vsi->num_queue_pairs; i++) {
1191                         vsi->tx_rings[i]->count = new_tx_count;
1192                         vsi->rx_rings[i]->count = new_rx_count;
1193                 }
1194                 goto done;
1195         }
1196
1197         /* We can't just free everything and then setup again,
1198          * because the ISRs in MSI-X mode get passed pointers
1199          * to the Tx and Rx ring structs.
1200          */
1201
1202         /* alloc updated Tx resources */
1203         if (new_tx_count != vsi->tx_rings[0]->count) {
1204                 netdev_info(netdev,
1205                             "Changing Tx descriptor count from %d to %d.\n",
1206                             vsi->tx_rings[0]->count, new_tx_count);
1207                 tx_rings = kcalloc(vsi->alloc_queue_pairs,
1208                                    sizeof(struct i40e_ring), GFP_KERNEL);
1209                 if (!tx_rings) {
1210                         err = -ENOMEM;
1211                         goto done;
1212                 }
1213
1214                 for (i = 0; i < vsi->num_queue_pairs; i++) {
1215                         /* clone ring and setup updated count */
1216                         tx_rings[i] = *vsi->tx_rings[i];
1217                         tx_rings[i].count = new_tx_count;
1218                         /* the desc and bi pointers will be reallocated in the
1219                          * setup call
1220                          */
1221                         tx_rings[i].desc = NULL;
1222                         tx_rings[i].rx_bi = NULL;
1223                         err = i40e_setup_tx_descriptors(&tx_rings[i]);
1224                         if (err) {
1225                                 while (i) {
1226                                         i--;
1227                                         i40e_free_tx_resources(&tx_rings[i]);
1228                                 }
1229                                 kfree(tx_rings);
1230                                 tx_rings = NULL;
1231
1232                                 goto done;
1233                         }
1234                 }
1235         }
1236
1237         /* alloc updated Rx resources */
1238         if (new_rx_count != vsi->rx_rings[0]->count) {
1239                 netdev_info(netdev,
1240                             "Changing Rx descriptor count from %d to %d\n",
1241                             vsi->rx_rings[0]->count, new_rx_count);
1242                 rx_rings = kcalloc(vsi->alloc_queue_pairs,
1243                                    sizeof(struct i40e_ring), GFP_KERNEL);
1244                 if (!rx_rings) {
1245                         err = -ENOMEM;
1246                         goto free_tx;
1247                 }
1248
1249                 for (i = 0; i < vsi->num_queue_pairs; i++) {
1250                         /* clone ring and setup updated count */
1251                         rx_rings[i] = *vsi->rx_rings[i];
1252                         rx_rings[i].count = new_rx_count;
1253                         /* the desc and bi pointers will be reallocated in the
1254                          * setup call
1255                          */
1256                         rx_rings[i].desc = NULL;
1257                         rx_rings[i].rx_bi = NULL;
1258                         err = i40e_setup_rx_descriptors(&rx_rings[i]);
1259                         if (err) {
1260                                 while (i) {
1261                                         i--;
1262                                         i40e_free_rx_resources(&rx_rings[i]);
1263                                 }
1264                                 kfree(rx_rings);
1265                                 rx_rings = NULL;
1266
1267                                 goto free_tx;
1268                         }
1269                 }
1270         }
1271
1272         /* Bring interface down, copy in the new ring info,
1273          * then restore the interface
1274          */
1275         i40e_down(vsi);
1276
1277         if (tx_rings) {
1278                 for (i = 0; i < vsi->num_queue_pairs; i++) {
1279                         i40e_free_tx_resources(vsi->tx_rings[i]);
1280                         *vsi->tx_rings[i] = tx_rings[i];
1281                 }
1282                 kfree(tx_rings);
1283                 tx_rings = NULL;
1284         }
1285
1286         if (rx_rings) {
1287                 for (i = 0; i < vsi->num_queue_pairs; i++) {
1288                         i40e_free_rx_resources(vsi->rx_rings[i]);
1289                         *vsi->rx_rings[i] = rx_rings[i];
1290                 }
1291                 kfree(rx_rings);
1292                 rx_rings = NULL;
1293         }
1294
1295         i40e_up(vsi);
1296
1297 free_tx:
1298         /* error cleanup if the Rx allocations failed after getting Tx */
1299         if (tx_rings) {
1300                 for (i = 0; i < vsi->num_queue_pairs; i++)
1301                         i40e_free_tx_resources(&tx_rings[i]);
1302                 kfree(tx_rings);
1303                 tx_rings = NULL;
1304         }
1305
1306 done:
1307         clear_bit(__I40E_CONFIG_BUSY, &pf->state);
1308
1309         return err;
1310 }
1311
1312 static int i40e_get_sset_count(struct net_device *netdev, int sset)
1313 {
1314         struct i40e_netdev_priv *np = netdev_priv(netdev);
1315         struct i40e_vsi *vsi = np->vsi;
1316         struct i40e_pf *pf = vsi->back;
1317
1318         switch (sset) {
1319         case ETH_SS_TEST:
1320                 return I40E_TEST_LEN;
1321         case ETH_SS_STATS:
1322                 if (vsi == pf->vsi[pf->lan_vsi] && pf->hw.partition_id == 1) {
1323                         int len = I40E_PF_STATS_LEN(netdev);
1324
1325                         if ((pf->lan_veb != I40E_NO_VEB) &&
1326                             (pf->flags & I40E_FLAG_VEB_STATS_ENABLED))
1327                                 len += I40E_VEB_STATS_TOTAL;
1328                         return len;
1329                 } else {
1330                         return I40E_VSI_STATS_LEN(netdev);
1331                 }
1332         case ETH_SS_PRIV_FLAGS:
1333                 return I40E_PRIV_FLAGS_STR_LEN;
1334         default:
1335                 return -EOPNOTSUPP;
1336         }
1337 }
1338
1339 static void i40e_get_ethtool_stats(struct net_device *netdev,
1340                                    struct ethtool_stats *stats, u64 *data)
1341 {
1342         struct i40e_netdev_priv *np = netdev_priv(netdev);
1343         struct i40e_ring *tx_ring, *rx_ring;
1344         struct i40e_vsi *vsi = np->vsi;
1345         struct i40e_pf *pf = vsi->back;
1346         int i = 0;
1347         char *p;
1348         int j;
1349         struct rtnl_link_stats64 *net_stats = i40e_get_vsi_stats_struct(vsi);
1350         unsigned int start;
1351
1352         i40e_update_stats(vsi);
1353
1354         for (j = 0; j < I40E_NETDEV_STATS_LEN; j++) {
1355                 p = (char *)net_stats + i40e_gstrings_net_stats[j].stat_offset;
1356                 data[i++] = (i40e_gstrings_net_stats[j].sizeof_stat ==
1357                         sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1358         }
1359         for (j = 0; j < I40E_MISC_STATS_LEN; j++) {
1360                 p = (char *)vsi + i40e_gstrings_misc_stats[j].stat_offset;
1361                 data[i++] = (i40e_gstrings_misc_stats[j].sizeof_stat ==
1362                             sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1363         }
1364 #ifdef I40E_FCOE
1365         for (j = 0; j < I40E_FCOE_STATS_LEN; j++) {
1366                 p = (char *)vsi + i40e_gstrings_fcoe_stats[j].stat_offset;
1367                 data[i++] = (i40e_gstrings_fcoe_stats[j].sizeof_stat ==
1368                         sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1369         }
1370 #endif
1371         rcu_read_lock();
1372         for (j = 0; j < vsi->num_queue_pairs; j++) {
1373                 tx_ring = ACCESS_ONCE(vsi->tx_rings[j]);
1374
1375                 if (!tx_ring)
1376                         continue;
1377
1378                 /* process Tx ring statistics */
1379                 do {
1380                         start = u64_stats_fetch_begin_irq(&tx_ring->syncp);
1381                         data[i] = tx_ring->stats.packets;
1382                         data[i + 1] = tx_ring->stats.bytes;
1383                 } while (u64_stats_fetch_retry_irq(&tx_ring->syncp, start));
1384                 i += 2;
1385
1386                 /* Rx ring is the 2nd half of the queue pair */
1387                 rx_ring = &tx_ring[1];
1388                 do {
1389                         start = u64_stats_fetch_begin_irq(&rx_ring->syncp);
1390                         data[i] = rx_ring->stats.packets;
1391                         data[i + 1] = rx_ring->stats.bytes;
1392                 } while (u64_stats_fetch_retry_irq(&rx_ring->syncp, start));
1393                 i += 2;
1394         }
1395         rcu_read_unlock();
1396         if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1)
1397                 return;
1398
1399         if ((pf->lan_veb != I40E_NO_VEB) &&
1400             (pf->flags & I40E_FLAG_VEB_STATS_ENABLED)) {
1401                 struct i40e_veb *veb = pf->veb[pf->lan_veb];
1402
1403                 for (j = 0; j < I40E_VEB_STATS_LEN; j++) {
1404                         p = (char *)veb;
1405                         p += i40e_gstrings_veb_stats[j].stat_offset;
1406                         data[i++] = (i40e_gstrings_veb_stats[j].sizeof_stat ==
1407                                      sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1408                 }
1409         }
1410         for (j = 0; j < I40E_GLOBAL_STATS_LEN; j++) {
1411                 p = (char *)pf + i40e_gstrings_stats[j].stat_offset;
1412                 data[i++] = (i40e_gstrings_stats[j].sizeof_stat ==
1413                              sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1414         }
1415         for (j = 0; j < I40E_MAX_USER_PRIORITY; j++) {
1416                 data[i++] = pf->stats.priority_xon_tx[j];
1417                 data[i++] = pf->stats.priority_xoff_tx[j];
1418         }
1419         for (j = 0; j < I40E_MAX_USER_PRIORITY; j++) {
1420                 data[i++] = pf->stats.priority_xon_rx[j];
1421                 data[i++] = pf->stats.priority_xoff_rx[j];
1422         }
1423         for (j = 0; j < I40E_MAX_USER_PRIORITY; j++)
1424                 data[i++] = pf->stats.priority_xon_2_xoff[j];
1425 }
1426
1427 static void i40e_get_strings(struct net_device *netdev, u32 stringset,
1428                              u8 *data)
1429 {
1430         struct i40e_netdev_priv *np = netdev_priv(netdev);
1431         struct i40e_vsi *vsi = np->vsi;
1432         struct i40e_pf *pf = vsi->back;
1433         char *p = (char *)data;
1434         int i;
1435
1436         switch (stringset) {
1437         case ETH_SS_TEST:
1438                 for (i = 0; i < I40E_TEST_LEN; i++) {
1439                         memcpy(data, i40e_gstrings_test[i], ETH_GSTRING_LEN);
1440                         data += ETH_GSTRING_LEN;
1441                 }
1442                 break;
1443         case ETH_SS_STATS:
1444                 for (i = 0; i < I40E_NETDEV_STATS_LEN; i++) {
1445                         snprintf(p, ETH_GSTRING_LEN, "%s",
1446                                  i40e_gstrings_net_stats[i].stat_string);
1447                         p += ETH_GSTRING_LEN;
1448                 }
1449                 for (i = 0; i < I40E_MISC_STATS_LEN; i++) {
1450                         snprintf(p, ETH_GSTRING_LEN, "%s",
1451                                  i40e_gstrings_misc_stats[i].stat_string);
1452                         p += ETH_GSTRING_LEN;
1453                 }
1454 #ifdef I40E_FCOE
1455                 for (i = 0; i < I40E_FCOE_STATS_LEN; i++) {
1456                         snprintf(p, ETH_GSTRING_LEN, "%s",
1457                                  i40e_gstrings_fcoe_stats[i].stat_string);
1458                         p += ETH_GSTRING_LEN;
1459                 }
1460 #endif
1461                 for (i = 0; i < vsi->num_queue_pairs; i++) {
1462                         snprintf(p, ETH_GSTRING_LEN, "tx-%u.tx_packets", i);
1463                         p += ETH_GSTRING_LEN;
1464                         snprintf(p, ETH_GSTRING_LEN, "tx-%u.tx_bytes", i);
1465                         p += ETH_GSTRING_LEN;
1466                         snprintf(p, ETH_GSTRING_LEN, "rx-%u.rx_packets", i);
1467                         p += ETH_GSTRING_LEN;
1468                         snprintf(p, ETH_GSTRING_LEN, "rx-%u.rx_bytes", i);
1469                         p += ETH_GSTRING_LEN;
1470                 }
1471                 if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1)
1472                         return;
1473
1474                 if ((pf->lan_veb != I40E_NO_VEB) &&
1475                     (pf->flags & I40E_FLAG_VEB_STATS_ENABLED)) {
1476                         for (i = 0; i < I40E_VEB_STATS_LEN; i++) {
1477                                 snprintf(p, ETH_GSTRING_LEN, "veb.%s",
1478                                         i40e_gstrings_veb_stats[i].stat_string);
1479                                 p += ETH_GSTRING_LEN;
1480                         }
1481                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1482                                 snprintf(p, ETH_GSTRING_LEN,
1483                                          "veb.tc_%u_tx_packets", i);
1484                                 p += ETH_GSTRING_LEN;
1485                                 snprintf(p, ETH_GSTRING_LEN,
1486                                          "veb.tc_%u_tx_bytes", i);
1487                                 p += ETH_GSTRING_LEN;
1488                                 snprintf(p, ETH_GSTRING_LEN,
1489                                          "veb.tc_%u_rx_packets", i);
1490                                 p += ETH_GSTRING_LEN;
1491                                 snprintf(p, ETH_GSTRING_LEN,
1492                                          "veb.tc_%u_rx_bytes", i);
1493                                 p += ETH_GSTRING_LEN;
1494                         }
1495                 }
1496                 for (i = 0; i < I40E_GLOBAL_STATS_LEN; i++) {
1497                         snprintf(p, ETH_GSTRING_LEN, "port.%s",
1498                                  i40e_gstrings_stats[i].stat_string);
1499                         p += ETH_GSTRING_LEN;
1500                 }
1501                 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) {
1502                         snprintf(p, ETH_GSTRING_LEN,
1503                                  "port.tx_priority_%u_xon", i);
1504                         p += ETH_GSTRING_LEN;
1505                         snprintf(p, ETH_GSTRING_LEN,
1506                                  "port.tx_priority_%u_xoff", i);
1507                         p += ETH_GSTRING_LEN;
1508                 }
1509                 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) {
1510                         snprintf(p, ETH_GSTRING_LEN,
1511                                  "port.rx_priority_%u_xon", i);
1512                         p += ETH_GSTRING_LEN;
1513                         snprintf(p, ETH_GSTRING_LEN,
1514                                  "port.rx_priority_%u_xoff", i);
1515                         p += ETH_GSTRING_LEN;
1516                 }
1517                 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) {
1518                         snprintf(p, ETH_GSTRING_LEN,
1519                                  "port.rx_priority_%u_xon_2_xoff", i);
1520                         p += ETH_GSTRING_LEN;
1521                 }
1522                 /* BUG_ON(p - data != I40E_STATS_LEN * ETH_GSTRING_LEN); */
1523                 break;
1524         case ETH_SS_PRIV_FLAGS:
1525                 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) {
1526                         memcpy(data, i40e_priv_flags_strings[i],
1527                                ETH_GSTRING_LEN);
1528                         data += ETH_GSTRING_LEN;
1529                 }
1530                 break;
1531         default:
1532                 break;
1533         }
1534 }
1535
1536 static int i40e_get_ts_info(struct net_device *dev,
1537                             struct ethtool_ts_info *info)
1538 {
1539         struct i40e_pf *pf = i40e_netdev_to_pf(dev);
1540
1541         /* only report HW timestamping if PTP is enabled */
1542         if (!(pf->flags & I40E_FLAG_PTP))
1543                 return ethtool_op_get_ts_info(dev, info);
1544
1545         info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE |
1546                                 SOF_TIMESTAMPING_RX_SOFTWARE |
1547                                 SOF_TIMESTAMPING_SOFTWARE |
1548                                 SOF_TIMESTAMPING_TX_HARDWARE |
1549                                 SOF_TIMESTAMPING_RX_HARDWARE |
1550                                 SOF_TIMESTAMPING_RAW_HARDWARE;
1551
1552         if (pf->ptp_clock)
1553                 info->phc_index = ptp_clock_index(pf->ptp_clock);
1554         else
1555                 info->phc_index = -1;
1556
1557         info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON);
1558
1559         info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) |
1560                            BIT(HWTSTAMP_FILTER_PTP_V1_L4_EVENT) |
1561                            BIT(HWTSTAMP_FILTER_PTP_V2_EVENT);
1562
1563         return 0;
1564 }
1565
1566 static int i40e_link_test(struct net_device *netdev, u64 *data)
1567 {
1568         struct i40e_netdev_priv *np = netdev_priv(netdev);
1569         struct i40e_pf *pf = np->vsi->back;
1570         i40e_status status;
1571         bool link_up = false;
1572
1573         netif_info(pf, hw, netdev, "link test\n");
1574         status = i40e_get_link_status(&pf->hw, &link_up);
1575         if (status) {
1576                 netif_err(pf, drv, netdev, "link query timed out, please retry test\n");
1577                 *data = 1;
1578                 return *data;
1579         }
1580
1581         if (link_up)
1582                 *data = 0;
1583         else
1584                 *data = 1;
1585
1586         return *data;
1587 }
1588
1589 static int i40e_reg_test(struct net_device *netdev, u64 *data)
1590 {
1591         struct i40e_netdev_priv *np = netdev_priv(netdev);
1592         struct i40e_pf *pf = np->vsi->back;
1593
1594         netif_info(pf, hw, netdev, "register test\n");
1595         *data = i40e_diag_reg_test(&pf->hw);
1596
1597         return *data;
1598 }
1599
1600 static int i40e_eeprom_test(struct net_device *netdev, u64 *data)
1601 {
1602         struct i40e_netdev_priv *np = netdev_priv(netdev);
1603         struct i40e_pf *pf = np->vsi->back;
1604
1605         netif_info(pf, hw, netdev, "eeprom test\n");
1606         *data = i40e_diag_eeprom_test(&pf->hw);
1607
1608         /* forcebly clear the NVM Update state machine */
1609         pf->hw.nvmupd_state = I40E_NVMUPD_STATE_INIT;
1610
1611         return *data;
1612 }
1613
1614 static int i40e_intr_test(struct net_device *netdev, u64 *data)
1615 {
1616         struct i40e_netdev_priv *np = netdev_priv(netdev);
1617         struct i40e_pf *pf = np->vsi->back;
1618         u16 swc_old = pf->sw_int_count;
1619
1620         netif_info(pf, hw, netdev, "interrupt test\n");
1621         wr32(&pf->hw, I40E_PFINT_DYN_CTL0,
1622              (I40E_PFINT_DYN_CTL0_INTENA_MASK |
1623               I40E_PFINT_DYN_CTL0_SWINT_TRIG_MASK |
1624               I40E_PFINT_DYN_CTL0_ITR_INDX_MASK |
1625               I40E_PFINT_DYN_CTL0_SW_ITR_INDX_ENA_MASK |
1626               I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK));
1627         usleep_range(1000, 2000);
1628         *data = (swc_old == pf->sw_int_count);
1629
1630         return *data;
1631 }
1632
1633 static int i40e_loopback_test(struct net_device *netdev, u64 *data)
1634 {
1635         struct i40e_netdev_priv *np = netdev_priv(netdev);
1636         struct i40e_pf *pf = np->vsi->back;
1637
1638         netif_info(pf, hw, netdev, "loopback test not implemented\n");
1639         *data = 0;
1640
1641         return *data;
1642 }
1643
1644 static inline bool i40e_active_vfs(struct i40e_pf *pf)
1645 {
1646         struct i40e_vf *vfs = pf->vf;
1647         int i;
1648
1649         for (i = 0; i < pf->num_alloc_vfs; i++)
1650                 if (test_bit(I40E_VF_STAT_ACTIVE, &vfs[i].vf_states))
1651                         return true;
1652         return false;
1653 }
1654
1655 static inline bool i40e_active_vmdqs(struct i40e_pf *pf)
1656 {
1657         struct i40e_vsi **vsi = pf->vsi;
1658         int i;
1659
1660         for (i = 0; i < pf->num_alloc_vsi; i++) {
1661                 if (!vsi[i])
1662                         continue;
1663                 if (vsi[i]->type == I40E_VSI_VMDQ2)
1664                         return true;
1665         }
1666
1667         return false;
1668 }
1669
1670 static void i40e_diag_test(struct net_device *netdev,
1671                            struct ethtool_test *eth_test, u64 *data)
1672 {
1673         struct i40e_netdev_priv *np = netdev_priv(netdev);
1674         bool if_running = netif_running(netdev);
1675         struct i40e_pf *pf = np->vsi->back;
1676
1677         if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
1678                 /* Offline tests */
1679                 netif_info(pf, drv, netdev, "offline testing starting\n");
1680
1681                 set_bit(__I40E_TESTING, &pf->state);
1682
1683                 if (i40e_active_vfs(pf) || i40e_active_vmdqs(pf)) {
1684                         dev_warn(&pf->pdev->dev,
1685                                  "Please take active VFs and Netqueues offline and restart the adapter before running NIC diagnostics\n");
1686                         data[I40E_ETH_TEST_REG]         = 1;
1687                         data[I40E_ETH_TEST_EEPROM]      = 1;
1688                         data[I40E_ETH_TEST_INTR]        = 1;
1689                         data[I40E_ETH_TEST_LOOPBACK]    = 1;
1690                         data[I40E_ETH_TEST_LINK]        = 1;
1691                         eth_test->flags |= ETH_TEST_FL_FAILED;
1692                         clear_bit(__I40E_TESTING, &pf->state);
1693                         goto skip_ol_tests;
1694                 }
1695
1696                 /* If the device is online then take it offline */
1697                 if (if_running)
1698                         /* indicate we're in test mode */
1699                         dev_close(netdev);
1700                 else
1701                         /* This reset does not affect link - if it is
1702                          * changed to a type of reset that does affect
1703                          * link then the following link test would have
1704                          * to be moved to before the reset
1705                          */
1706                         i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED));
1707
1708                 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK]))
1709                         eth_test->flags |= ETH_TEST_FL_FAILED;
1710
1711                 if (i40e_eeprom_test(netdev, &data[I40E_ETH_TEST_EEPROM]))
1712                         eth_test->flags |= ETH_TEST_FL_FAILED;
1713
1714                 if (i40e_intr_test(netdev, &data[I40E_ETH_TEST_INTR]))
1715                         eth_test->flags |= ETH_TEST_FL_FAILED;
1716
1717                 if (i40e_loopback_test(netdev, &data[I40E_ETH_TEST_LOOPBACK]))
1718                         eth_test->flags |= ETH_TEST_FL_FAILED;
1719
1720                 /* run reg test last, a reset is required after it */
1721                 if (i40e_reg_test(netdev, &data[I40E_ETH_TEST_REG]))
1722                         eth_test->flags |= ETH_TEST_FL_FAILED;
1723
1724                 clear_bit(__I40E_TESTING, &pf->state);
1725                 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED));
1726
1727                 if (if_running)
1728                         dev_open(netdev);
1729         } else {
1730                 /* Online tests */
1731                 netif_info(pf, drv, netdev, "online testing starting\n");
1732
1733                 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK]))
1734                         eth_test->flags |= ETH_TEST_FL_FAILED;
1735
1736                 /* Offline only tests, not run in online; pass by default */
1737                 data[I40E_ETH_TEST_REG] = 0;
1738                 data[I40E_ETH_TEST_EEPROM] = 0;
1739                 data[I40E_ETH_TEST_INTR] = 0;
1740                 data[I40E_ETH_TEST_LOOPBACK] = 0;
1741         }
1742
1743 skip_ol_tests:
1744
1745         netif_info(pf, drv, netdev, "testing finished\n");
1746 }
1747
1748 static void i40e_get_wol(struct net_device *netdev,
1749                          struct ethtool_wolinfo *wol)
1750 {
1751         struct i40e_netdev_priv *np = netdev_priv(netdev);
1752         struct i40e_pf *pf = np->vsi->back;
1753         struct i40e_hw *hw = &pf->hw;
1754         u16 wol_nvm_bits;
1755
1756         /* NVM bit on means WoL disabled for the port */
1757         i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits);
1758         if ((BIT(hw->port) & wol_nvm_bits) || (hw->partition_id != 1)) {
1759                 wol->supported = 0;
1760                 wol->wolopts = 0;
1761         } else {
1762                 wol->supported = WAKE_MAGIC;
1763                 wol->wolopts = (pf->wol_en ? WAKE_MAGIC : 0);
1764         }
1765 }
1766
1767 /**
1768  * i40e_set_wol - set the WakeOnLAN configuration
1769  * @netdev: the netdev in question
1770  * @wol: the ethtool WoL setting data
1771  **/
1772 static int i40e_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
1773 {
1774         struct i40e_netdev_priv *np = netdev_priv(netdev);
1775         struct i40e_pf *pf = np->vsi->back;
1776         struct i40e_vsi *vsi = np->vsi;
1777         struct i40e_hw *hw = &pf->hw;
1778         u16 wol_nvm_bits;
1779
1780         /* WoL not supported if this isn't the controlling PF on the port */
1781         if (hw->partition_id != 1) {
1782                 i40e_partition_setting_complaint(pf);
1783                 return -EOPNOTSUPP;
1784         }
1785
1786         if (vsi != pf->vsi[pf->lan_vsi])
1787                 return -EOPNOTSUPP;
1788
1789         /* NVM bit on means WoL disabled for the port */
1790         i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits);
1791         if (BIT(hw->port) & wol_nvm_bits)
1792                 return -EOPNOTSUPP;
1793
1794         /* only magic packet is supported */
1795         if (wol->wolopts && (wol->wolopts != WAKE_MAGIC))
1796                 return -EOPNOTSUPP;
1797
1798         /* is this a new value? */
1799         if (pf->wol_en != !!wol->wolopts) {
1800                 pf->wol_en = !!wol->wolopts;
1801                 device_set_wakeup_enable(&pf->pdev->dev, pf->wol_en);
1802         }
1803
1804         return 0;
1805 }
1806
1807 static int i40e_set_phys_id(struct net_device *netdev,
1808                             enum ethtool_phys_id_state state)
1809 {
1810         struct i40e_netdev_priv *np = netdev_priv(netdev);
1811         struct i40e_pf *pf = np->vsi->back;
1812         struct i40e_hw *hw = &pf->hw;
1813         int blink_freq = 2;
1814
1815         switch (state) {
1816         case ETHTOOL_ID_ACTIVE:
1817                 pf->led_status = i40e_led_get(hw);
1818                 return blink_freq;
1819         case ETHTOOL_ID_ON:
1820                 i40e_led_set(hw, 0xF, false);
1821                 break;
1822         case ETHTOOL_ID_OFF:
1823                 i40e_led_set(hw, 0x0, false);
1824                 break;
1825         case ETHTOOL_ID_INACTIVE:
1826                 i40e_led_set(hw, pf->led_status, false);
1827                 break;
1828         default:
1829                 break;
1830         }
1831
1832         return 0;
1833 }
1834
1835 /* NOTE: i40e hardware uses a conversion factor of 2 for Interrupt
1836  * Throttle Rate (ITR) ie. ITR(1) = 2us ITR(10) = 20 us, and also
1837  * 125us (8000 interrupts per second) == ITR(62)
1838  */
1839
1840 static int i40e_get_coalesce(struct net_device *netdev,
1841                              struct ethtool_coalesce *ec)
1842 {
1843         struct i40e_netdev_priv *np = netdev_priv(netdev);
1844         struct i40e_vsi *vsi = np->vsi;
1845
1846         ec->tx_max_coalesced_frames_irq = vsi->work_limit;
1847         ec->rx_max_coalesced_frames_irq = vsi->work_limit;
1848
1849         if (ITR_IS_DYNAMIC(vsi->rx_itr_setting))
1850                 ec->use_adaptive_rx_coalesce = 1;
1851
1852         if (ITR_IS_DYNAMIC(vsi->tx_itr_setting))
1853                 ec->use_adaptive_tx_coalesce = 1;
1854
1855         ec->rx_coalesce_usecs = vsi->rx_itr_setting & ~I40E_ITR_DYNAMIC;
1856         ec->tx_coalesce_usecs = vsi->tx_itr_setting & ~I40E_ITR_DYNAMIC;
1857         /* we use the _usecs_high to store/set the interrupt rate limit
1858          * that the hardware supports, that almost but not quite
1859          * fits the original intent of the ethtool variable,
1860          * the rx_coalesce_usecs_high limits total interrupts
1861          * per second from both tx/rx sources.
1862          */
1863         ec->rx_coalesce_usecs_high = vsi->int_rate_limit;
1864         ec->tx_coalesce_usecs_high = vsi->int_rate_limit;
1865
1866         return 0;
1867 }
1868
1869 static int i40e_set_coalesce(struct net_device *netdev,
1870                              struct ethtool_coalesce *ec)
1871 {
1872         struct i40e_netdev_priv *np = netdev_priv(netdev);
1873         struct i40e_q_vector *q_vector;
1874         struct i40e_vsi *vsi = np->vsi;
1875         struct i40e_pf *pf = vsi->back;
1876         struct i40e_hw *hw = &pf->hw;
1877         u16 vector;
1878         int i;
1879
1880         if (ec->tx_max_coalesced_frames_irq || ec->rx_max_coalesced_frames_irq)
1881                 vsi->work_limit = ec->tx_max_coalesced_frames_irq;
1882
1883         /* tx_coalesce_usecs_high is ignored, use rx-usecs-high instead */
1884         if (ec->tx_coalesce_usecs_high != vsi->int_rate_limit) {
1885                 netif_info(pf, drv, netdev, "tx-usecs-high is not used, please program rx-usecs-high\n");
1886                 return -EINVAL;
1887         }
1888
1889         if (ec->rx_coalesce_usecs_high >= INTRL_REG_TO_USEC(I40E_MAX_INTRL)) {
1890                 netif_info(pf, drv, netdev, "Invalid value, rx-usecs-high range is 0-235\n");
1891                 return -EINVAL;
1892         }
1893
1894         vector = vsi->base_vector;
1895         if ((ec->rx_coalesce_usecs >= (I40E_MIN_ITR << 1)) &&
1896             (ec->rx_coalesce_usecs <= (I40E_MAX_ITR << 1))) {
1897                 vsi->rx_itr_setting = ec->rx_coalesce_usecs;
1898         } else if (ec->rx_coalesce_usecs == 0) {
1899                 vsi->rx_itr_setting = ec->rx_coalesce_usecs;
1900                 if (ec->use_adaptive_rx_coalesce)
1901                         netif_info(pf, drv, netdev, "rx-usecs=0, need to disable adaptive-rx for a complete disable\n");
1902         } else {
1903                 netif_info(pf, drv, netdev, "Invalid value, rx-usecs range is 0-8160\n");
1904                 return -EINVAL;
1905         }
1906
1907         vsi->int_rate_limit = ec->rx_coalesce_usecs_high;
1908
1909         if ((ec->tx_coalesce_usecs >= (I40E_MIN_ITR << 1)) &&
1910             (ec->tx_coalesce_usecs <= (I40E_MAX_ITR << 1))) {
1911                 vsi->tx_itr_setting = ec->tx_coalesce_usecs;
1912         } else if (ec->tx_coalesce_usecs == 0) {
1913                 vsi->tx_itr_setting = ec->tx_coalesce_usecs;
1914                 if (ec->use_adaptive_tx_coalesce)
1915                         netif_info(pf, drv, netdev, "tx-usecs=0, need to disable adaptive-tx for a complete disable\n");
1916         } else {
1917                 netif_info(pf, drv, netdev,
1918                            "Invalid value, tx-usecs range is 0-8160\n");
1919                 return -EINVAL;
1920         }
1921
1922         if (ec->use_adaptive_rx_coalesce)
1923                 vsi->rx_itr_setting |= I40E_ITR_DYNAMIC;
1924         else
1925                 vsi->rx_itr_setting &= ~I40E_ITR_DYNAMIC;
1926
1927         if (ec->use_adaptive_tx_coalesce)
1928                 vsi->tx_itr_setting |= I40E_ITR_DYNAMIC;
1929         else
1930                 vsi->tx_itr_setting &= ~I40E_ITR_DYNAMIC;
1931
1932         for (i = 0; i < vsi->num_q_vectors; i++, vector++) {
1933                 u16 intrl = INTRL_USEC_TO_REG(vsi->int_rate_limit);
1934
1935                 q_vector = vsi->q_vectors[i];
1936                 q_vector->rx.itr = ITR_TO_REG(vsi->rx_itr_setting);
1937                 wr32(hw, I40E_PFINT_ITRN(0, vector - 1), q_vector->rx.itr);
1938                 q_vector->tx.itr = ITR_TO_REG(vsi->tx_itr_setting);
1939                 wr32(hw, I40E_PFINT_ITRN(1, vector - 1), q_vector->tx.itr);
1940                 wr32(hw, I40E_PFINT_RATEN(vector - 1), intrl);
1941                 i40e_flush(hw);
1942         }
1943
1944         return 0;
1945 }
1946
1947 /**
1948  * i40e_get_rss_hash_opts - Get RSS hash Input Set for each flow type
1949  * @pf: pointer to the physical function struct
1950  * @cmd: ethtool rxnfc command
1951  *
1952  * Returns Success if the flow is supported, else Invalid Input.
1953  **/
1954 static int i40e_get_rss_hash_opts(struct i40e_pf *pf, struct ethtool_rxnfc *cmd)
1955 {
1956         cmd->data = 0;
1957
1958         if (pf->vsi[pf->lan_vsi]->rxnfc.data != 0) {
1959                 cmd->data = pf->vsi[pf->lan_vsi]->rxnfc.data;
1960                 cmd->flow_type = pf->vsi[pf->lan_vsi]->rxnfc.flow_type;
1961                 return 0;
1962         }
1963         /* Report default options for RSS on i40e */
1964         switch (cmd->flow_type) {
1965         case TCP_V4_FLOW:
1966         case UDP_V4_FLOW:
1967                 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
1968         /* fall through to add IP fields */
1969         case SCTP_V4_FLOW:
1970         case AH_ESP_V4_FLOW:
1971         case AH_V4_FLOW:
1972         case ESP_V4_FLOW:
1973         case IPV4_FLOW:
1974                 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
1975                 break;
1976         case TCP_V6_FLOW:
1977         case UDP_V6_FLOW:
1978                 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
1979         /* fall through to add IP fields */
1980         case SCTP_V6_FLOW:
1981         case AH_ESP_V6_FLOW:
1982         case AH_V6_FLOW:
1983         case ESP_V6_FLOW:
1984         case IPV6_FLOW:
1985                 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
1986                 break;
1987         default:
1988                 return -EINVAL;
1989         }
1990
1991         return 0;
1992 }
1993
1994 /**
1995  * i40e_get_ethtool_fdir_all - Populates the rule count of a command
1996  * @pf: Pointer to the physical function struct
1997  * @cmd: The command to get or set Rx flow classification rules
1998  * @rule_locs: Array of used rule locations
1999  *
2000  * This function populates both the total and actual rule count of
2001  * the ethtool flow classification command
2002  *
2003  * Returns 0 on success or -EMSGSIZE if entry not found
2004  **/
2005 static int i40e_get_ethtool_fdir_all(struct i40e_pf *pf,
2006                                      struct ethtool_rxnfc *cmd,
2007                                      u32 *rule_locs)
2008 {
2009         struct i40e_fdir_filter *rule;
2010         struct hlist_node *node2;
2011         int cnt = 0;
2012
2013         /* report total rule count */
2014         cmd->data = i40e_get_fd_cnt_all(pf);
2015
2016         hlist_for_each_entry_safe(rule, node2,
2017                                   &pf->fdir_filter_list, fdir_node) {
2018                 if (cnt == cmd->rule_cnt)
2019                         return -EMSGSIZE;
2020
2021                 rule_locs[cnt] = rule->fd_id;
2022                 cnt++;
2023         }
2024
2025         cmd->rule_cnt = cnt;
2026
2027         return 0;
2028 }
2029
2030 /**
2031  * i40e_get_ethtool_fdir_entry - Look up a filter based on Rx flow
2032  * @pf: Pointer to the physical function struct
2033  * @cmd: The command to get or set Rx flow classification rules
2034  *
2035  * This function looks up a filter based on the Rx flow classification
2036  * command and fills the flow spec info for it if found
2037  *
2038  * Returns 0 on success or -EINVAL if filter not found
2039  **/
2040 static int i40e_get_ethtool_fdir_entry(struct i40e_pf *pf,
2041                                        struct ethtool_rxnfc *cmd)
2042 {
2043         struct ethtool_rx_flow_spec *fsp =
2044                         (struct ethtool_rx_flow_spec *)&cmd->fs;
2045         struct i40e_fdir_filter *rule = NULL;
2046         struct hlist_node *node2;
2047
2048         hlist_for_each_entry_safe(rule, node2,
2049                                   &pf->fdir_filter_list, fdir_node) {
2050                 if (fsp->location <= rule->fd_id)
2051                         break;
2052         }
2053
2054         if (!rule || fsp->location != rule->fd_id)
2055                 return -EINVAL;
2056
2057         fsp->flow_type = rule->flow_type;
2058         if (fsp->flow_type == IP_USER_FLOW) {
2059                 fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4;
2060                 fsp->h_u.usr_ip4_spec.proto = 0;
2061                 fsp->m_u.usr_ip4_spec.proto = 0;
2062         }
2063
2064         /* Reverse the src and dest notion, since the HW views them from
2065          * Tx perspective where as the user expects it from Rx filter view.
2066          */
2067         fsp->h_u.tcp_ip4_spec.psrc = rule->dst_port;
2068         fsp->h_u.tcp_ip4_spec.pdst = rule->src_port;
2069         fsp->h_u.tcp_ip4_spec.ip4src = rule->dst_ip[0];
2070         fsp->h_u.tcp_ip4_spec.ip4dst = rule->src_ip[0];
2071
2072         if (rule->dest_ctl == I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET)
2073                 fsp->ring_cookie = RX_CLS_FLOW_DISC;
2074         else
2075                 fsp->ring_cookie = rule->q_index;
2076
2077         if (rule->dest_vsi != pf->vsi[pf->lan_vsi]->id) {
2078                 struct i40e_vsi *vsi;
2079
2080                 vsi = i40e_find_vsi_from_id(pf, rule->dest_vsi);
2081                 if (vsi && vsi->type == I40E_VSI_SRIOV) {
2082                         fsp->h_ext.data[1] = htonl(vsi->vf_id);
2083                         fsp->m_ext.data[1] = htonl(0x1);
2084                 }
2085         }
2086
2087         return 0;
2088 }
2089
2090 /**
2091  * i40e_get_rxnfc - command to get RX flow classification rules
2092  * @netdev: network interface device structure
2093  * @cmd: ethtool rxnfc command
2094  *
2095  * Returns Success if the command is supported.
2096  **/
2097 static int i40e_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd,
2098                           u32 *rule_locs)
2099 {
2100         struct i40e_netdev_priv *np = netdev_priv(netdev);
2101         struct i40e_vsi *vsi = np->vsi;
2102         struct i40e_pf *pf = vsi->back;
2103         int ret = -EOPNOTSUPP;
2104
2105         switch (cmd->cmd) {
2106         case ETHTOOL_GRXRINGS:
2107                 cmd->data = vsi->alloc_queue_pairs;
2108                 ret = 0;
2109                 break;
2110         case ETHTOOL_GRXFH:
2111                 ret = i40e_get_rss_hash_opts(pf, cmd);
2112                 break;
2113         case ETHTOOL_GRXCLSRLCNT:
2114                 cmd->rule_cnt = pf->fdir_pf_active_filters;
2115                 /* report total rule count */
2116                 cmd->data = i40e_get_fd_cnt_all(pf);
2117                 ret = 0;
2118                 break;
2119         case ETHTOOL_GRXCLSRULE:
2120                 ret = i40e_get_ethtool_fdir_entry(pf, cmd);
2121                 break;
2122         case ETHTOOL_GRXCLSRLALL:
2123                 ret = i40e_get_ethtool_fdir_all(pf, cmd, rule_locs);
2124                 break;
2125         default:
2126                 break;
2127         }
2128
2129         return ret;
2130 }
2131
2132 /**
2133  * i40e_set_rss_hash_opt - Enable/Disable flow types for RSS hash
2134  * @pf: pointer to the physical function struct
2135  * @cmd: ethtool rxnfc command
2136  *
2137  * Returns Success if the flow input set is supported.
2138  **/
2139 static int i40e_set_rss_hash_opt(struct i40e_pf *pf, struct ethtool_rxnfc *nfc)
2140 {
2141         struct i40e_hw *hw = &pf->hw;
2142         u64 hena = (u64)rd32(hw, I40E_PFQF_HENA(0)) |
2143                    ((u64)rd32(hw, I40E_PFQF_HENA(1)) << 32);
2144
2145         /* RSS does not support anything other than hashing
2146          * to queues on src and dst IPs and ports
2147          */
2148         if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST |
2149                           RXH_L4_B_0_1 | RXH_L4_B_2_3))
2150                 return -EINVAL;
2151
2152         /* We need at least the IP SRC and DEST fields for hashing */
2153         if (!(nfc->data & RXH_IP_SRC) ||
2154             !(nfc->data & RXH_IP_DST))
2155                 return -EINVAL;
2156
2157         switch (nfc->flow_type) {
2158         case TCP_V4_FLOW:
2159                 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
2160                 case 0:
2161                         hena &= ~BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP);
2162                         break;
2163                 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
2164                         hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP);
2165                         break;
2166                 default:
2167                         return -EINVAL;
2168                 }
2169                 break;
2170         case TCP_V6_FLOW:
2171                 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
2172                 case 0:
2173                         hena &= ~BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_TCP);
2174                         break;
2175                 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
2176                         hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_TCP);
2177                         break;
2178                 default:
2179                         return -EINVAL;
2180                 }
2181                 break;
2182         case UDP_V4_FLOW:
2183                 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
2184                 case 0:
2185                         hena &= ~(BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_UDP) |
2186                                   BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4));
2187                         break;
2188                 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
2189                         hena |= (BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_UDP) |
2190                                  BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4));
2191                         break;
2192                 default:
2193                         return -EINVAL;
2194                 }
2195                 break;
2196         case UDP_V6_FLOW:
2197                 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
2198                 case 0:
2199                         hena &= ~(BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_UDP) |
2200                                   BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6));
2201                         break;
2202                 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
2203                         hena |= (BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_UDP) |
2204                                  BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6));
2205                         break;
2206                 default:
2207                         return -EINVAL;
2208                 }
2209                 break;
2210         case AH_ESP_V4_FLOW:
2211         case AH_V4_FLOW:
2212         case ESP_V4_FLOW:
2213         case SCTP_V4_FLOW:
2214                 if ((nfc->data & RXH_L4_B_0_1) ||
2215                     (nfc->data & RXH_L4_B_2_3))
2216                         return -EINVAL;
2217                 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER);
2218                 break;
2219         case AH_ESP_V6_FLOW:
2220         case AH_V6_FLOW:
2221         case ESP_V6_FLOW:
2222         case SCTP_V6_FLOW:
2223                 if ((nfc->data & RXH_L4_B_0_1) ||
2224                     (nfc->data & RXH_L4_B_2_3))
2225                         return -EINVAL;
2226                 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER);
2227                 break;
2228         case IPV4_FLOW:
2229                 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER) |
2230                         BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4);
2231                 break;
2232         case IPV6_FLOW:
2233                 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER) |
2234                         BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6);
2235                 break;
2236         default:
2237                 return -EINVAL;
2238         }
2239
2240         wr32(hw, I40E_PFQF_HENA(0), (u32)hena);
2241         wr32(hw, I40E_PFQF_HENA(1), (u32)(hena >> 32));
2242         i40e_flush(hw);
2243
2244         /* Save setting for future output/update */
2245         pf->vsi[pf->lan_vsi]->rxnfc = *nfc;
2246
2247         return 0;
2248 }
2249
2250 /**
2251  * i40e_match_fdir_input_set - Match a new filter against an existing one
2252  * @rule: The filter already added
2253  * @input: The new filter to comapre against
2254  *
2255  * Returns true if the two input set match
2256  **/
2257 static bool i40e_match_fdir_input_set(struct i40e_fdir_filter *rule,
2258                                       struct i40e_fdir_filter *input)
2259 {
2260         if ((rule->dst_ip[0] != input->dst_ip[0]) ||
2261             (rule->src_ip[0] != input->src_ip[0]) ||
2262             (rule->dst_port != input->dst_port) ||
2263             (rule->src_port != input->src_port))
2264                 return false;
2265         return true;
2266 }
2267
2268 /**
2269  * i40e_update_ethtool_fdir_entry - Updates the fdir filter entry
2270  * @vsi: Pointer to the targeted VSI
2271  * @input: The filter to update or NULL to indicate deletion
2272  * @sw_idx: Software index to the filter
2273  * @cmd: The command to get or set Rx flow classification rules
2274  *
2275  * This function updates (or deletes) a Flow Director entry from
2276  * the hlist of the corresponding PF
2277  *
2278  * Returns 0 on success
2279  **/
2280 static int i40e_update_ethtool_fdir_entry(struct i40e_vsi *vsi,
2281                                           struct i40e_fdir_filter *input,
2282                                           u16 sw_idx,
2283                                           struct ethtool_rxnfc *cmd)
2284 {
2285         struct i40e_fdir_filter *rule, *parent;
2286         struct i40e_pf *pf = vsi->back;
2287         struct hlist_node *node2;
2288         int err = -EINVAL;
2289
2290         parent = NULL;
2291         rule = NULL;
2292
2293         hlist_for_each_entry_safe(rule, node2,
2294                                   &pf->fdir_filter_list, fdir_node) {
2295                 /* hash found, or no matching entry */
2296                 if (rule->fd_id >= sw_idx)
2297                         break;
2298                 parent = rule;
2299         }
2300
2301         /* if there is an old rule occupying our place remove it */
2302         if (rule && (rule->fd_id == sw_idx)) {
2303                 if (input && !i40e_match_fdir_input_set(rule, input))
2304                         err = i40e_add_del_fdir(vsi, rule, false);
2305                 else if (!input)
2306                         err = i40e_add_del_fdir(vsi, rule, false);
2307                 hlist_del(&rule->fdir_node);
2308                 kfree(rule);
2309                 pf->fdir_pf_active_filters--;
2310         }
2311
2312         /* If no input this was a delete, err should be 0 if a rule was
2313          * successfully found and removed from the list else -EINVAL
2314          */
2315         if (!input)
2316                 return err;
2317
2318         /* initialize node and set software index */
2319         INIT_HLIST_NODE(&input->fdir_node);
2320
2321         /* add filter to the list */
2322         if (parent)
2323                 hlist_add_behind(&input->fdir_node, &parent->fdir_node);
2324         else
2325                 hlist_add_head(&input->fdir_node,
2326                                &pf->fdir_filter_list);
2327
2328         /* update counts */
2329         pf->fdir_pf_active_filters++;
2330
2331         return 0;
2332 }
2333
2334 /**
2335  * i40e_del_fdir_entry - Deletes a Flow Director filter entry
2336  * @vsi: Pointer to the targeted VSI
2337  * @cmd: The command to get or set Rx flow classification rules
2338  *
2339  * The function removes a Flow Director filter entry from the
2340  * hlist of the corresponding PF
2341  *
2342  * Returns 0 on success
2343  */
2344 static int i40e_del_fdir_entry(struct i40e_vsi *vsi,
2345                                struct ethtool_rxnfc *cmd)
2346 {
2347         struct ethtool_rx_flow_spec *fsp =
2348                 (struct ethtool_rx_flow_spec *)&cmd->fs;
2349         struct i40e_pf *pf = vsi->back;
2350         int ret = 0;
2351
2352         if (test_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state) ||
2353             test_bit(__I40E_RESET_INTR_RECEIVED, &pf->state))
2354                 return -EBUSY;
2355
2356         if (test_bit(__I40E_FD_FLUSH_REQUESTED, &pf->state))
2357                 return -EBUSY;
2358
2359         ret = i40e_update_ethtool_fdir_entry(vsi, NULL, fsp->location, cmd);
2360
2361         i40e_fdir_check_and_reenable(pf);
2362         return ret;
2363 }
2364
2365 /**
2366  * i40e_add_fdir_ethtool - Add/Remove Flow Director filters
2367  * @vsi: pointer to the targeted VSI
2368  * @cmd: command to get or set RX flow classification rules
2369  *
2370  * Add Flow Director filters for a specific flow spec based on their
2371  * protocol.  Returns 0 if the filters were successfully added.
2372  **/
2373 static int i40e_add_fdir_ethtool(struct i40e_vsi *vsi,
2374                                  struct ethtool_rxnfc *cmd)
2375 {
2376         struct ethtool_rx_flow_spec *fsp;
2377         struct i40e_fdir_filter *input;
2378         struct i40e_pf *pf;
2379         int ret = -EINVAL;
2380         u16 vf_id;
2381
2382         if (!vsi)
2383                 return -EINVAL;
2384
2385         pf = vsi->back;
2386
2387         if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED))
2388                 return -EOPNOTSUPP;
2389
2390         if (pf->auto_disable_flags & I40E_FLAG_FD_SB_ENABLED)
2391                 return -ENOSPC;
2392
2393         if (test_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state) ||
2394             test_bit(__I40E_RESET_INTR_RECEIVED, &pf->state))
2395                 return -EBUSY;
2396
2397         if (test_bit(__I40E_FD_FLUSH_REQUESTED, &pf->state))
2398                 return -EBUSY;
2399
2400         fsp = (struct ethtool_rx_flow_spec *)&cmd->fs;
2401
2402         if (fsp->location >= (pf->hw.func_caps.fd_filters_best_effort +
2403                               pf->hw.func_caps.fd_filters_guaranteed)) {
2404                 return -EINVAL;
2405         }
2406
2407         if ((fsp->ring_cookie != RX_CLS_FLOW_DISC) &&
2408             (fsp->ring_cookie >= vsi->num_queue_pairs))
2409                 return -EINVAL;
2410
2411         input = kzalloc(sizeof(*input), GFP_KERNEL);
2412
2413         if (!input)
2414                 return -ENOMEM;
2415
2416         input->fd_id = fsp->location;
2417
2418         if (fsp->ring_cookie == RX_CLS_FLOW_DISC)
2419                 input->dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET;
2420         else
2421                 input->dest_ctl =
2422                              I40E_FILTER_PROGRAM_DESC_DEST_DIRECT_PACKET_QINDEX;
2423
2424         input->q_index = fsp->ring_cookie;
2425         input->flex_off = 0;
2426         input->pctype = 0;
2427         input->dest_vsi = vsi->id;
2428         input->fd_status = I40E_FILTER_PROGRAM_DESC_FD_STATUS_FD_ID;
2429         input->cnt_index  = I40E_FD_SB_STAT_IDX(pf->hw.pf_id);
2430         input->flow_type = fsp->flow_type;
2431         input->ip4_proto = fsp->h_u.usr_ip4_spec.proto;
2432
2433         /* Reverse the src and dest notion, since the HW expects them to be from
2434          * Tx perspective where as the input from user is from Rx filter view.
2435          */
2436         input->dst_port = fsp->h_u.tcp_ip4_spec.psrc;
2437         input->src_port = fsp->h_u.tcp_ip4_spec.pdst;
2438         input->dst_ip[0] = fsp->h_u.tcp_ip4_spec.ip4src;
2439         input->src_ip[0] = fsp->h_u.tcp_ip4_spec.ip4dst;
2440
2441         if (ntohl(fsp->m_ext.data[1])) {
2442                 if (ntohl(fsp->h_ext.data[1]) >= pf->num_alloc_vfs) {
2443                         netif_info(pf, drv, vsi->netdev, "Invalid VF id\n");
2444                         goto free_input;
2445                 }
2446                 vf_id = ntohl(fsp->h_ext.data[1]);
2447                 /* Find vsi id from vf id and override dest vsi */
2448                 input->dest_vsi = pf->vf[vf_id].lan_vsi_id;
2449                 if (input->q_index >= pf->vf[vf_id].num_queue_pairs) {
2450                         netif_info(pf, drv, vsi->netdev, "Invalid queue id\n");
2451                         goto free_input;
2452                 }
2453         }
2454
2455         ret = i40e_add_del_fdir(vsi, input, true);
2456 free_input:
2457         if (ret)
2458                 kfree(input);
2459         else
2460                 i40e_update_ethtool_fdir_entry(vsi, input, fsp->location, NULL);
2461
2462         return ret;
2463 }
2464
2465 /**
2466  * i40e_set_rxnfc - command to set RX flow classification rules
2467  * @netdev: network interface device structure
2468  * @cmd: ethtool rxnfc command
2469  *
2470  * Returns Success if the command is supported.
2471  **/
2472 static int i40e_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd)
2473 {
2474         struct i40e_netdev_priv *np = netdev_priv(netdev);
2475         struct i40e_vsi *vsi = np->vsi;
2476         struct i40e_pf *pf = vsi->back;
2477         int ret = -EOPNOTSUPP;
2478
2479         switch (cmd->cmd) {
2480         case ETHTOOL_SRXFH:
2481                 ret = i40e_set_rss_hash_opt(pf, cmd);
2482                 break;
2483         case ETHTOOL_SRXCLSRLINS:
2484                 ret = i40e_add_fdir_ethtool(vsi, cmd);
2485                 break;
2486         case ETHTOOL_SRXCLSRLDEL:
2487                 ret = i40e_del_fdir_entry(vsi, cmd);
2488                 break;
2489         default:
2490                 break;
2491         }
2492
2493         return ret;
2494 }
2495
2496 /**
2497  * i40e_max_channels - get Max number of combined channels supported
2498  * @vsi: vsi pointer
2499  **/
2500 static unsigned int i40e_max_channels(struct i40e_vsi *vsi)
2501 {
2502         /* TODO: This code assumes DCB and FD is disabled for now. */
2503         return vsi->alloc_queue_pairs;
2504 }
2505
2506 /**
2507  * i40e_get_channels - Get the current channels enabled and max supported etc.
2508  * @netdev: network interface device structure
2509  * @ch: ethtool channels structure
2510  *
2511  * We don't support separate tx and rx queues as channels. The other count
2512  * represents how many queues are being used for control. max_combined counts
2513  * how many queue pairs we can support. They may not be mapped 1 to 1 with
2514  * q_vectors since we support a lot more queue pairs than q_vectors.
2515  **/
2516 static void i40e_get_channels(struct net_device *dev,
2517                                struct ethtool_channels *ch)
2518 {
2519         struct i40e_netdev_priv *np = netdev_priv(dev);
2520         struct i40e_vsi *vsi = np->vsi;
2521         struct i40e_pf *pf = vsi->back;
2522
2523         /* report maximum channels */
2524         ch->max_combined = i40e_max_channels(vsi);
2525
2526         /* report info for other vector */
2527         ch->other_count = (pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0;
2528         ch->max_other = ch->other_count;
2529
2530         /* Note: This code assumes DCB is disabled for now. */
2531         ch->combined_count = vsi->num_queue_pairs;
2532 }
2533
2534 /**
2535  * i40e_set_channels - Set the new channels count.
2536  * @netdev: network interface device structure
2537  * @ch: ethtool channels structure
2538  *
2539  * The new channels count may not be the same as requested by the user
2540  * since it gets rounded down to a power of 2 value.
2541  **/
2542 static int i40e_set_channels(struct net_device *dev,
2543                               struct ethtool_channels *ch)
2544 {
2545         struct i40e_netdev_priv *np = netdev_priv(dev);
2546         unsigned int count = ch->combined_count;
2547         struct i40e_vsi *vsi = np->vsi;
2548         struct i40e_pf *pf = vsi->back;
2549         int new_count;
2550
2551         /* We do not support setting channels for any other VSI at present */
2552         if (vsi->type != I40E_VSI_MAIN)
2553                 return -EINVAL;
2554
2555         /* verify they are not requesting separate vectors */
2556         if (!count || ch->rx_count || ch->tx_count)
2557                 return -EINVAL;
2558
2559         /* verify other_count has not changed */
2560         if (ch->other_count != ((pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0))
2561                 return -EINVAL;
2562
2563         /* verify the number of channels does not exceed hardware limits */
2564         if (count > i40e_max_channels(vsi))
2565                 return -EINVAL;
2566
2567         /* update feature limits from largest to smallest supported values */
2568         /* TODO: Flow director limit, DCB etc */
2569
2570         /* use rss_reconfig to rebuild with new queue count and update traffic
2571          * class queue mapping
2572          */
2573         new_count = i40e_reconfig_rss_queues(pf, count);
2574         if (new_count > 0)
2575                 return 0;
2576         else
2577                 return -EINVAL;
2578 }
2579
2580 #define I40E_HLUT_ARRAY_SIZE ((I40E_PFQF_HLUT_MAX_INDEX + 1) * 4)
2581 /**
2582  * i40e_get_rxfh_key_size - get the RSS hash key size
2583  * @netdev: network interface device structure
2584  *
2585  * Returns the table size.
2586  **/
2587 static u32 i40e_get_rxfh_key_size(struct net_device *netdev)
2588 {
2589         return I40E_HKEY_ARRAY_SIZE;
2590 }
2591
2592 /**
2593  * i40e_get_rxfh_indir_size - get the rx flow hash indirection table size
2594  * @netdev: network interface device structure
2595  *
2596  * Returns the table size.
2597  **/
2598 static u32 i40e_get_rxfh_indir_size(struct net_device *netdev)
2599 {
2600         return I40E_HLUT_ARRAY_SIZE;
2601 }
2602
2603 static int i40e_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key,
2604                          u8 *hfunc)
2605 {
2606         struct i40e_netdev_priv *np = netdev_priv(netdev);
2607         struct i40e_vsi *vsi = np->vsi;
2608         struct i40e_pf *pf = vsi->back;
2609         struct i40e_hw *hw = &pf->hw;
2610         u32 reg_val;
2611         int i, j;
2612
2613         if (hfunc)
2614                 *hfunc = ETH_RSS_HASH_TOP;
2615
2616         if (!indir)
2617                 return 0;
2618
2619         for (i = 0, j = 0; i <= I40E_PFQF_HLUT_MAX_INDEX; i++) {
2620                 reg_val = rd32(hw, I40E_PFQF_HLUT(i));
2621                 indir[j++] = reg_val & 0xff;
2622                 indir[j++] = (reg_val >> 8) & 0xff;
2623                 indir[j++] = (reg_val >> 16) & 0xff;
2624                 indir[j++] = (reg_val >> 24) & 0xff;
2625         }
2626
2627         if (key) {
2628                 for (i = 0, j = 0; i <= I40E_PFQF_HKEY_MAX_INDEX; i++) {
2629                         reg_val = rd32(hw, I40E_PFQF_HKEY(i));
2630                         key[j++] = (u8)(reg_val & 0xff);
2631                         key[j++] = (u8)((reg_val >> 8) & 0xff);
2632                         key[j++] = (u8)((reg_val >> 16) & 0xff);
2633                         key[j++] = (u8)((reg_val >> 24) & 0xff);
2634                 }
2635         }
2636         return 0;
2637 }
2638
2639 /**
2640  * i40e_set_rxfh - set the rx flow hash indirection table
2641  * @netdev: network interface device structure
2642  * @indir: indirection table
2643  * @key: hash key
2644  *
2645  * Returns -EINVAL if the table specifies an invalid queue id, otherwise
2646  * returns 0 after programming the table.
2647  **/
2648 static int i40e_set_rxfh(struct net_device *netdev, const u32 *indir,
2649                          const u8 *key, const u8 hfunc)
2650 {
2651         struct i40e_netdev_priv *np = netdev_priv(netdev);
2652         struct i40e_vsi *vsi = np->vsi;
2653         struct i40e_pf *pf = vsi->back;
2654         struct i40e_hw *hw = &pf->hw;
2655         u32 reg_val;
2656         int i, j;
2657
2658         if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)
2659                 return -EOPNOTSUPP;
2660
2661         if (!indir)
2662                 return 0;
2663
2664         for (i = 0, j = 0; i <= I40E_PFQF_HLUT_MAX_INDEX; i++) {
2665                 reg_val = indir[j++];
2666                 reg_val |= indir[j++] << 8;
2667                 reg_val |= indir[j++] << 16;
2668                 reg_val |= indir[j++] << 24;
2669                 wr32(hw, I40E_PFQF_HLUT(i), reg_val);
2670         }
2671
2672         if (key) {
2673                 for (i = 0, j = 0; i <= I40E_PFQF_HKEY_MAX_INDEX; i++) {
2674                         reg_val = key[j++];
2675                         reg_val |= key[j++] << 8;
2676                         reg_val |= key[j++] << 16;
2677                         reg_val |= key[j++] << 24;
2678                         wr32(hw, I40E_PFQF_HKEY(i), reg_val);
2679                 }
2680         }
2681         return 0;
2682 }
2683
2684 /**
2685  * i40e_get_priv_flags - report device private flags
2686  * @dev: network interface device structure
2687  *
2688  * The get string set count and the string set should be matched for each
2689  * flag returned.  Add new strings for each flag to the i40e_priv_flags_strings
2690  * array.
2691  *
2692  * Returns a u32 bitmap of flags.
2693  **/
2694 static u32 i40e_get_priv_flags(struct net_device *dev)
2695 {
2696         struct i40e_netdev_priv *np = netdev_priv(dev);
2697         struct i40e_vsi *vsi = np->vsi;
2698         struct i40e_pf *pf = vsi->back;
2699         u32 ret_flags = 0;
2700
2701         ret_flags |= pf->hw.func_caps.npar_enable ?
2702                 I40E_PRIV_FLAGS_NPAR_FLAG : 0;
2703         ret_flags |= pf->flags & I40E_FLAG_LINK_POLLING_ENABLED ?
2704                 I40E_PRIV_FLAGS_LINKPOLL_FLAG : 0;
2705         ret_flags |= pf->flags & I40E_FLAG_FD_ATR_ENABLED ?
2706                 I40E_PRIV_FLAGS_FD_ATR : 0;
2707         ret_flags |= pf->flags & I40E_FLAG_VEB_STATS_ENABLED ?
2708                 I40E_PRIV_FLAGS_VEB_STATS : 0;
2709
2710         return ret_flags;
2711 }
2712
2713 /**
2714  * i40e_set_priv_flags - set private flags
2715  * @dev: network interface device structure
2716  * @flags: bit flags to be set
2717  **/
2718 static int i40e_set_priv_flags(struct net_device *dev, u32 flags)
2719 {
2720         struct i40e_netdev_priv *np = netdev_priv(dev);
2721         struct i40e_vsi *vsi = np->vsi;
2722         struct i40e_pf *pf = vsi->back;
2723
2724         if (flags & I40E_PRIV_FLAGS_LINKPOLL_FLAG)
2725                 pf->flags |= I40E_FLAG_LINK_POLLING_ENABLED;
2726         else
2727                 pf->flags &= ~I40E_FLAG_LINK_POLLING_ENABLED;
2728
2729         /* allow the user to control the state of the Flow
2730          * Director ATR (Application Targeted Routing) feature
2731          * of the driver
2732          */
2733         if (flags & I40E_PRIV_FLAGS_FD_ATR) {
2734                 pf->flags |= I40E_FLAG_FD_ATR_ENABLED;
2735         } else {
2736                 pf->flags &= ~I40E_FLAG_FD_ATR_ENABLED;
2737                 pf->auto_disable_flags |= I40E_FLAG_FD_ATR_ENABLED;
2738         }
2739
2740         if (flags & I40E_PRIV_FLAGS_VEB_STATS)
2741                 pf->flags |= I40E_FLAG_VEB_STATS_ENABLED;
2742         else
2743                 pf->flags &= ~I40E_FLAG_VEB_STATS_ENABLED;
2744
2745         return 0;
2746 }
2747
2748 static const struct ethtool_ops i40e_ethtool_ops = {
2749         .get_settings           = i40e_get_settings,
2750         .set_settings           = i40e_set_settings,
2751         .get_drvinfo            = i40e_get_drvinfo,
2752         .get_regs_len           = i40e_get_regs_len,
2753         .get_regs               = i40e_get_regs,
2754         .nway_reset             = i40e_nway_reset,
2755         .get_link               = ethtool_op_get_link,
2756         .get_wol                = i40e_get_wol,
2757         .set_wol                = i40e_set_wol,
2758         .set_eeprom             = i40e_set_eeprom,
2759         .get_eeprom_len         = i40e_get_eeprom_len,
2760         .get_eeprom             = i40e_get_eeprom,
2761         .get_ringparam          = i40e_get_ringparam,
2762         .set_ringparam          = i40e_set_ringparam,
2763         .get_pauseparam         = i40e_get_pauseparam,
2764         .set_pauseparam         = i40e_set_pauseparam,
2765         .get_msglevel           = i40e_get_msglevel,
2766         .set_msglevel           = i40e_set_msglevel,
2767         .get_rxnfc              = i40e_get_rxnfc,
2768         .set_rxnfc              = i40e_set_rxnfc,
2769         .self_test              = i40e_diag_test,
2770         .get_strings            = i40e_get_strings,
2771         .set_phys_id            = i40e_set_phys_id,
2772         .get_sset_count         = i40e_get_sset_count,
2773         .get_ethtool_stats      = i40e_get_ethtool_stats,
2774         .get_coalesce           = i40e_get_coalesce,
2775         .set_coalesce           = i40e_set_coalesce,
2776         .get_rxfh_key_size      = i40e_get_rxfh_key_size,
2777         .get_rxfh_indir_size    = i40e_get_rxfh_indir_size,
2778         .get_rxfh               = i40e_get_rxfh,
2779         .set_rxfh               = i40e_set_rxfh,
2780         .get_channels           = i40e_get_channels,
2781         .set_channels           = i40e_set_channels,
2782         .get_ts_info            = i40e_get_ts_info,
2783         .get_priv_flags         = i40e_get_priv_flags,
2784         .set_priv_flags         = i40e_set_priv_flags,
2785 };
2786
2787 void i40e_set_ethtool_ops(struct net_device *netdev)
2788 {
2789         netdev->ethtool_ops = &i40e_ethtool_ops;
2790 }