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 is not supported, return error */
 665                 if (!(safe_ecmd.supported & SUPPORTED_Autoneg)) {
 666                         netdev_info(netdev, "Autoneg not supported on this phy\n");
 667                         return -EINVAL;
 668                 }
 669                 /* If autoneg was not already enabled */
 670                 if (!(hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED)) {
 671                         config.abilities = abilities.abilities |
 672                                            I40E_AQ_PHY_ENABLE_AN;
 673                         change = true;
 674                 }
 675         } else {
 676                 /* If autoneg is supported 10GBASE_T is the only phy that
 677                  * can disable it, so otherwise return error
 678                  */
 679                 if (safe_ecmd.supported & SUPPORTED_Autoneg &&
 680                     hw->phy.link_info.phy_type != I40E_PHY_TYPE_10GBASE_T) {
 681                         netdev_info(netdev, "Autoneg cannot be disabled on this phy\n");
 682                         return -EINVAL;
 683                 }
 684                 /* If autoneg is currently enabled */
 685                 if (hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED) {
 686                         config.abilities = abilities.abilities &
 687                                            ~I40E_AQ_PHY_ENABLE_AN;
 688                         change = true;
 689                 }
 690         }
 691
 692         if (advertise & ~safe_ecmd.supported)
 693                 return -EINVAL;
 694
 695         if (advertise & ADVERTISED_100baseT_Full)
 696                 config.link_speed |= I40E_LINK_SPEED_100MB;
 697         if (advertise & ADVERTISED_1000baseT_Full ||
 698             advertise & ADVERTISED_1000baseKX_Full)
 699                 config.link_speed |= I40E_LINK_SPEED_1GB;
 700         if (advertise & ADVERTISED_10000baseT_Full ||
 701             advertise & ADVERTISED_10000baseKX4_Full ||
 702             advertise & ADVERTISED_10000baseKR_Full)
 703                 config.link_speed |= I40E_LINK_SPEED_10GB;
 704         if (advertise & ADVERTISED_20000baseKR2_Full)
 705                 config.link_speed |= I40E_LINK_SPEED_20GB;
 706         if (advertise & ADVERTISED_40000baseKR4_Full ||
 707             advertise & ADVERTISED_40000baseCR4_Full ||
 708             advertise & ADVERTISED_40000baseSR4_Full ||
 709             advertise & ADVERTISED_40000baseLR4_Full)
 710                 config.link_speed |= I40E_LINK_SPEED_40GB;
 711
 712         /* If speed didn't get set, set it to what it currently is.
 713          * This is needed because if advertise is 0 (as it is when autoneg
 714          * is disabled) then speed won't get set.
 715          */
 716         if (!config.link_speed)
 717                 config.link_speed = abilities.link_speed;
 718
 719         if (change || (abilities.link_speed != config.link_speed)) {
 720                 /* copy over the rest of the abilities */
 721                 config.phy_type = abilities.phy_type;
 722                 config.eee_capability = abilities.eee_capability;
 723                 config.eeer = abilities.eeer_val;
 724                 config.low_power_ctrl = abilities.d3_lpan;
 725
 726                 /* save the requested speeds */
 727                 hw->phy.link_info.requested_speeds = config.link_speed;
 728                 /* set link and auto negotiation so changes take effect */
 729                 config.abilities |= I40E_AQ_PHY_ENABLE_ATOMIC_LINK;
 730                 /* If link is up put link down */
 731                 if (hw->phy.link_info.link_info & I40E_AQ_LINK_UP) {
 732                         /* Tell the OS link is going down, the link will go
 733                          * back up when fw says it is ready asynchronously
 734                          */
 735                         i40e_print_link_message(vsi, false);
 736                         netif_carrier_off(netdev);
 737                         netif_tx_stop_all_queues(netdev);
 738                 }
 739
 740                 /* make the aq call */
 741                 status = i40e_aq_set_phy_config(hw, &config, NULL);
 742                 if (status) {
 743                         netdev_info(netdev, "Set phy config failed, err %s aq_err %s\n",
 744                                     i40e_stat_str(hw, status),
 745                                     i40e_aq_str(hw, hw->aq.asq_last_status));
 746                         return -EAGAIN;
 747                 }
 748
 749                 status = i40e_update_link_info(hw);
 750                 if (status)
 751                         netdev_info(netdev, "Updating link info failed with err %s aq_err %s\n",
 752                                     i40e_stat_str(hw, status),
 753                                     i40e_aq_str(hw, hw->aq.asq_last_status));
 754
 755         } else {
 756                 netdev_info(netdev, "Nothing changed, exiting without setting anything.\n");
 757         }
 758
 759         return err;
 760 }
 761
 762 static int i40e_nway_reset(struct net_device *netdev)
 763 {
 764         /* restart autonegotiation */
 765         struct i40e_netdev_priv *np = netdev_priv(netdev);
 766         struct i40e_pf *pf = np->vsi->back;
 767         struct i40e_hw *hw = &pf->hw;
 768         bool link_up = hw->phy.link_info.link_info & I40E_AQ_LINK_UP;
 769         i40e_status ret = 0;
 770
 771         ret = i40e_aq_set_link_restart_an(hw, link_up, NULL);
 772         if (ret) {
 773                 netdev_info(netdev, "link restart failed, err %s aq_err %s\n",
 774                             i40e_stat_str(hw, ret),
 775                             i40e_aq_str(hw, hw->aq.asq_last_status));
 776                 return -EIO;
 777         }
 778
 779         return 0;
 780 }
 781
 782 /**
 783  * i40e_get_pauseparam -  Get Flow Control status
 784  * Return tx/rx-pause status
 785  **/
 786 static void i40e_get_pauseparam(struct net_device *netdev,
 787                                 struct ethtool_pauseparam *pause)
 788 {
 789         struct i40e_netdev_priv *np = netdev_priv(netdev);
 790         struct i40e_pf *pf = np->vsi->back;
 791         struct i40e_hw *hw = &pf->hw;
 792         struct i40e_link_status *hw_link_info = &hw->phy.link_info;
 793         struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config;
 794
 795         pause->autoneg =
 796                 ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
 797                   AUTONEG_ENABLE : AUTONEG_DISABLE);
 798
 799         /* PFC enabled so report LFC as off */
 800         if (dcbx_cfg->pfc.pfcenable) {
 801                 pause->rx_pause = 0;
 802                 pause->tx_pause = 0;
 803                 return;
 804         }
 805
 806         if (hw->fc.current_mode == I40E_FC_RX_PAUSE) {
 807                 pause->rx_pause = 1;
 808         } else if (hw->fc.current_mode == I40E_FC_TX_PAUSE) {
 809                 pause->tx_pause = 1;
 810         } else if (hw->fc.current_mode == I40E_FC_FULL) {
 811                 pause->rx_pause = 1;
 812                 pause->tx_pause = 1;
 813         }
 814 }
 815
 816 /**
 817  * i40e_set_pauseparam - Set Flow Control parameter
 818  * @netdev: network interface device structure
 819  * @pause: return tx/rx flow control status
 820  **/
 821 static int i40e_set_pauseparam(struct net_device *netdev,
 822                                struct ethtool_pauseparam *pause)
 823 {
 824         struct i40e_netdev_priv *np = netdev_priv(netdev);
 825         struct i40e_pf *pf = np->vsi->back;
 826         struct i40e_vsi *vsi = np->vsi;
 827         struct i40e_hw *hw = &pf->hw;
 828         struct i40e_link_status *hw_link_info = &hw->phy.link_info;
 829         struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config;
 830         bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP;
 831         i40e_status status;
 832         u8 aq_failures;
 833         int err = 0;
 834
 835         /* Changing the port's flow control is not supported if this isn't the
 836          * port's controlling PF
 837          */
 838         if (hw->partition_id != 1) {
 839                 i40e_partition_setting_complaint(pf);
 840                 return -EOPNOTSUPP;
 841         }
 842
 843         if (vsi != pf->vsi[pf->lan_vsi])
 844                 return -EOPNOTSUPP;
 845
 846         if (pause->autoneg != ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
 847             AUTONEG_ENABLE : AUTONEG_DISABLE)) {
 848                 netdev_info(netdev, "To change autoneg please use: ethtool -s <dev> autoneg <on|off>\n");
 849                 return -EOPNOTSUPP;
 850         }
 851
 852         /* If we have link and don't have autoneg */
 853         if (!test_bit(__I40E_DOWN, &pf->state) &&
 854             !(hw_link_info->an_info & I40E_AQ_AN_COMPLETED)) {
 855                 /* Send message that it might not necessarily work*/
 856                 netdev_info(netdev, "Autoneg did not complete so changing settings may not result in an actual change.\n");
 857         }
 858
 859         if (dcbx_cfg->pfc.pfcenable) {
 860                 netdev_info(netdev,
 861                             "Priority flow control enabled. Cannot set link flow control.\n");
 862                 return -EOPNOTSUPP;
 863         }
 864
 865         if (pause->rx_pause && pause->tx_pause)
 866                 hw->fc.requested_mode = I40E_FC_FULL;
 867         else if (pause->rx_pause && !pause->tx_pause)
 868                 hw->fc.requested_mode = I40E_FC_RX_PAUSE;
 869         else if (!pause->rx_pause && pause->tx_pause)
 870                 hw->fc.requested_mode = I40E_FC_TX_PAUSE;
 871         else if (!pause->rx_pause && !pause->tx_pause)
 872                 hw->fc.requested_mode = I40E_FC_NONE;
 873         else
 874                  return -EINVAL;
 875
 876         /* Tell the OS link is going down, the link will go back up when fw
 877          * says it is ready asynchronously
 878          */
 879         i40e_print_link_message(vsi, false);
 880         netif_carrier_off(netdev);
 881         netif_tx_stop_all_queues(netdev);
 882
 883         /* Set the fc mode and only restart an if link is up*/
 884         status = i40e_set_fc(hw, &aq_failures, link_up);
 885
 886         if (aq_failures & I40E_SET_FC_AQ_FAIL_GET) {
 887                 netdev_info(netdev, "Set fc failed on the get_phy_capabilities call with err %s aq_err %s\n",
 888                             i40e_stat_str(hw, status),
 889                             i40e_aq_str(hw, hw->aq.asq_last_status));
 890                 err = -EAGAIN;
 891         }
 892         if (aq_failures & I40E_SET_FC_AQ_FAIL_SET) {
 893                 netdev_info(netdev, "Set fc failed on the set_phy_config call with err %s aq_err %s\n",
 894                             i40e_stat_str(hw, status),
 895                             i40e_aq_str(hw, hw->aq.asq_last_status));
 896                 err = -EAGAIN;
 897         }
 898         if (aq_failures & I40E_SET_FC_AQ_FAIL_UPDATE) {
 899                 netdev_info(netdev, "Set fc failed on the get_link_info call with err %s aq_err %s\n",
 900                             i40e_stat_str(hw, status),
 901                             i40e_aq_str(hw, hw->aq.asq_last_status));
 902                 err = -EAGAIN;
 903         }
 904
 905         if (!test_bit(__I40E_DOWN, &pf->state)) {
 906                 /* Give it a little more time to try to come back */
 907                 msleep(75);
 908                 if (!test_bit(__I40E_DOWN, &pf->state))
 909                         return i40e_nway_reset(netdev);
 910         }
 911
 912         return err;
 913 }
 914
 915 static u32 i40e_get_msglevel(struct net_device *netdev)
 916 {
 917         struct i40e_netdev_priv *np = netdev_priv(netdev);
 918         struct i40e_pf *pf = np->vsi->back;
 919
 920         return pf->msg_enable;
 921 }
 922
 923 static void i40e_set_msglevel(struct net_device *netdev, u32 data)
 924 {
 925         struct i40e_netdev_priv *np = netdev_priv(netdev);
 926         struct i40e_pf *pf = np->vsi->back;
 927
 928         if (I40E_DEBUG_USER & data)
 929                 pf->hw.debug_mask = data;
 930         pf->msg_enable = data;
 931 }
 932
 933 static int i40e_get_regs_len(struct net_device *netdev)
 934 {
 935         int reg_count = 0;
 936         int i;
 937
 938         for (i = 0; i40e_reg_list[i].offset != 0; i++)
 939                 reg_count += i40e_reg_list[i].elements;
 940
 941         return reg_count * sizeof(u32);
 942 }
 943
 944 static void i40e_get_regs(struct net_device *netdev, struct ethtool_regs *regs,
 945                           void *p)
 946 {
 947         struct i40e_netdev_priv *np = netdev_priv(netdev);
 948         struct i40e_pf *pf = np->vsi->back;
 949         struct i40e_hw *hw = &pf->hw;
 950         u32 *reg_buf = p;
 951         int i, j, ri;
 952         u32 reg;
 953
 954         /* Tell ethtool which driver-version-specific regs output we have.
 955          *
 956          * At some point, if we have ethtool doing special formatting of
 957          * this data, it will rely on this version number to know how to
 958          * interpret things.  Hence, this needs to be updated if/when the
 959          * diags register table is changed.
 960          */
 961         regs->version = 1;
 962
 963         /* loop through the diags reg table for what to print */
 964         ri = 0;
 965         for (i = 0; i40e_reg_list[i].offset != 0; i++) {
 966                 for (j = 0; j < i40e_reg_list[i].elements; j++) {
 967                         reg = i40e_reg_list[i].offset
 968                                 + (j * i40e_reg_list[i].stride);
 969                         reg_buf[ri++] = rd32(hw, reg);
 970                 }
 971         }
 972
 973 }
 974
 975 static int i40e_get_eeprom(struct net_device *netdev,
 976                            struct ethtool_eeprom *eeprom, u8 *bytes)
 977 {
 978         struct i40e_netdev_priv *np = netdev_priv(netdev);
 979         struct i40e_hw *hw = &np->vsi->back->hw;
 980         struct i40e_pf *pf = np->vsi->back;
 981         int ret_val = 0, len, offset;
 982         u8 *eeprom_buff;
 983         u16 i, sectors;
 984         bool last;
 985         u32 magic;
 986
 987 #define I40E_NVM_SECTOR_SIZE  4096
 988         if (eeprom->len == 0)
 989                 return -EINVAL;
 990
 991         /* check for NVMUpdate access method */
 992         magic = hw->vendor_id | (hw->device_id << 16);
 993         if (eeprom->magic && eeprom->magic != magic) {
 994                 struct i40e_nvm_access *cmd;
 995                 int errno;
 996
 997                 /* make sure it is the right magic for NVMUpdate */
 998                 if ((eeprom->magic >> 16) != hw->device_id)
 999                         return -EINVAL;
1000
1001                 cmd = (struct i40e_nvm_access *)eeprom;
1002                 ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno);
1003                 if (ret_val && (hw->debug_mask & I40E_DEBUG_NVM))
1004                         dev_info(&pf->pdev->dev,
1005                                  "NVMUpdate read failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n",
1006                                  ret_val, hw->aq.asq_last_status, errno,
1007                                  (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK),
1008                                  cmd->offset, cmd->data_size);
1009
1010                 return errno;
1011         }
1012
1013         /* normal ethtool get_eeprom support */
1014         eeprom->magic = hw->vendor_id | (hw->device_id << 16);
1015
1016         eeprom_buff = kzalloc(eeprom->len, GFP_KERNEL);
1017         if (!eeprom_buff)
1018                 return -ENOMEM;
1019
1020         ret_val = i40e_acquire_nvm(hw, I40E_RESOURCE_READ);
1021         if (ret_val) {
1022                 dev_info(&pf->pdev->dev,
1023                          "Failed Acquiring NVM resource for read err=%d status=0x%x\n",
1024                          ret_val, hw->aq.asq_last_status);
1025                 goto free_buff;
1026         }
1027
1028         sectors = eeprom->len / I40E_NVM_SECTOR_SIZE;
1029         sectors += (eeprom->len % I40E_NVM_SECTOR_SIZE) ? 1 : 0;
1030         len = I40E_NVM_SECTOR_SIZE;
1031         last = false;
1032         for (i = 0; i < sectors; i++) {
1033                 if (i == (sectors - 1)) {
1034                         len = eeprom->len - (I40E_NVM_SECTOR_SIZE * i);
1035                         last = true;
1036                 }
1037                 offset = eeprom->offset + (I40E_NVM_SECTOR_SIZE * i),
1038                 ret_val = i40e_aq_read_nvm(hw, 0x0, offset, len,
1039                                 (u8 *)eeprom_buff + (I40E_NVM_SECTOR_SIZE * i),
1040                                 last, NULL);
1041                 if (ret_val && hw->aq.asq_last_status == I40E_AQ_RC_EPERM) {
1042                         dev_info(&pf->pdev->dev,
1043                                  "read NVM failed, invalid offset 0x%x\n",
1044                                  offset);
1045                         break;
1046                 } else if (ret_val &&
1047                            hw->aq.asq_last_status == I40E_AQ_RC_EACCES) {
1048                         dev_info(&pf->pdev->dev,
1049                                  "read NVM failed, access, offset 0x%x\n",
1050                                  offset);
1051                         break;
1052                 } else if (ret_val) {
1053                         dev_info(&pf->pdev->dev,
1054                                  "read NVM failed offset %d err=%d status=0x%x\n",
1055                                  offset, ret_val, hw->aq.asq_last_status);
1056                         break;
1057                 }
1058         }
1059
1060         i40e_release_nvm(hw);
1061         memcpy(bytes, (u8 *)eeprom_buff, eeprom->len);
1062 free_buff:
1063         kfree(eeprom_buff);
1064         return ret_val;
1065 }
1066
1067 static int i40e_get_eeprom_len(struct net_device *netdev)
1068 {
1069         struct i40e_netdev_priv *np = netdev_priv(netdev);
1070         struct i40e_hw *hw = &np->vsi->back->hw;
1071         u32 val;
1072
1073         val = (rd32(hw, I40E_GLPCI_LBARCTRL)
1074                 & I40E_GLPCI_LBARCTRL_FL_SIZE_MASK)
1075                 >> I40E_GLPCI_LBARCTRL_FL_SIZE_SHIFT;
1076         /* register returns value in power of 2, 64Kbyte chunks. */
1077         val = (64 * 1024) * BIT(val);
1078         return val;
1079 }
1080
1081 static int i40e_set_eeprom(struct net_device *netdev,
1082                            struct ethtool_eeprom *eeprom, u8 *bytes)
1083 {
1084         struct i40e_netdev_priv *np = netdev_priv(netdev);
1085         struct i40e_hw *hw = &np->vsi->back->hw;
1086         struct i40e_pf *pf = np->vsi->back;
1087         struct i40e_nvm_access *cmd;
1088         int ret_val = 0;
1089         int errno;
1090         u32 magic;
1091
1092         /* normal ethtool set_eeprom is not supported */
1093         magic = hw->vendor_id | (hw->device_id << 16);
1094         if (eeprom->magic == magic)
1095                 return -EOPNOTSUPP;
1096
1097         /* check for NVMUpdate access method */
1098         if (!eeprom->magic || (eeprom->magic >> 16) != hw->device_id)
1099                 return -EINVAL;
1100
1101         if (test_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state) ||
1102             test_bit(__I40E_RESET_INTR_RECEIVED, &pf->state))
1103                 return -EBUSY;
1104
1105         cmd = (struct i40e_nvm_access *)eeprom;
1106         ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno);
1107         if (ret_val && (hw->debug_mask & I40E_DEBUG_NVM))
1108                 dev_info(&pf->pdev->dev,
1109                          "NVMUpdate write failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n",
1110                          ret_val, hw->aq.asq_last_status, errno,
1111                          (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK),
1112                          cmd->offset, cmd->data_size);
1113
1114         return errno;
1115 }
1116
1117 static void i40e_get_drvinfo(struct net_device *netdev,
1118                              struct ethtool_drvinfo *drvinfo)
1119 {
1120         struct i40e_netdev_priv *np = netdev_priv(netdev);
1121         struct i40e_vsi *vsi = np->vsi;
1122         struct i40e_pf *pf = vsi->back;
1123
1124         strlcpy(drvinfo->driver, i40e_driver_name, sizeof(drvinfo->driver));
1125         strlcpy(drvinfo->version, i40e_driver_version_str,
1126                 sizeof(drvinfo->version));
1127         strlcpy(drvinfo->fw_version, i40e_nvm_version_str(&pf->hw),
1128                 sizeof(drvinfo->fw_version));
1129         strlcpy(drvinfo->bus_info, pci_name(pf->pdev),
1130                 sizeof(drvinfo->bus_info));
1131 }
1132
1133 static void i40e_get_ringparam(struct net_device *netdev,
1134                                struct ethtool_ringparam *ring)
1135 {
1136         struct i40e_netdev_priv *np = netdev_priv(netdev);
1137         struct i40e_pf *pf = np->vsi->back;
1138         struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi];
1139
1140         ring->rx_max_pending = I40E_MAX_NUM_DESCRIPTORS;
1141         ring->tx_max_pending = I40E_MAX_NUM_DESCRIPTORS;
1142         ring->rx_mini_max_pending = 0;
1143         ring->rx_jumbo_max_pending = 0;
1144         ring->rx_pending = vsi->rx_rings[0]->count;
1145         ring->tx_pending = vsi->tx_rings[0]->count;
1146         ring->rx_mini_pending = 0;
1147         ring->rx_jumbo_pending = 0;
1148 }
1149
1150 static int i40e_set_ringparam(struct net_device *netdev,
1151                               struct ethtool_ringparam *ring)
1152 {
1153         struct i40e_ring *tx_rings = NULL, *rx_rings = NULL;
1154         struct i40e_netdev_priv *np = netdev_priv(netdev);
1155         struct i40e_vsi *vsi = np->vsi;
1156         struct i40e_pf *pf = vsi->back;
1157         u32 new_rx_count, new_tx_count;
1158         int i, err = 0;
1159
1160         if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
1161                 return -EINVAL;
1162
1163         if (ring->tx_pending > I40E_MAX_NUM_DESCRIPTORS ||
1164             ring->tx_pending < I40E_MIN_NUM_DESCRIPTORS ||
1165             ring->rx_pending > I40E_MAX_NUM_DESCRIPTORS ||
1166             ring->rx_pending < I40E_MIN_NUM_DESCRIPTORS) {
1167                 netdev_info(netdev,
1168                             "Descriptors requested (Tx: %d / Rx: %d) out of range [%d-%d]\n",
1169                             ring->tx_pending, ring->rx_pending,
1170                             I40E_MIN_NUM_DESCRIPTORS, I40E_MAX_NUM_DESCRIPTORS);
1171                 return -EINVAL;
1172         }
1173
1174         new_tx_count = ALIGN(ring->tx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE);
1175         new_rx_count = ALIGN(ring->rx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE);
1176
1177         /* if nothing to do return success */
1178         if ((new_tx_count == vsi->tx_rings[0]->count) &&
1179             (new_rx_count == vsi->rx_rings[0]->count))
1180                 return 0;
1181
1182         while (test_and_set_bit(__I40E_CONFIG_BUSY, &pf->state))
1183                 usleep_range(1000, 2000);
1184
1185         if (!netif_running(vsi->netdev)) {
1186                 /* simple case - set for the next time the netdev is started */
1187                 for (i = 0; i < vsi->num_queue_pairs; i++) {
1188                         vsi->tx_rings[i]->count = new_tx_count;
1189                         vsi->rx_rings[i]->count = new_rx_count;
1190                 }
1191                 goto done;
1192         }
1193
1194         /* We can't just free everything and then setup again,
1195          * because the ISRs in MSI-X mode get passed pointers
1196          * to the Tx and Rx ring structs.
1197          */
1198
1199         /* alloc updated Tx resources */
1200         if (new_tx_count != vsi->tx_rings[0]->count) {
1201                 netdev_info(netdev,
1202                             "Changing Tx descriptor count from %d to %d.\n",
1203                             vsi->tx_rings[0]->count, new_tx_count);
1204                 tx_rings = kcalloc(vsi->alloc_queue_pairs,
1205                                    sizeof(struct i40e_ring), GFP_KERNEL);
1206                 if (!tx_rings) {
1207                         err = -ENOMEM;
1208                         goto done;
1209                 }
1210
1211                 for (i = 0; i < vsi->num_queue_pairs; i++) {
1212                         /* clone ring and setup updated count */
1213                         tx_rings[i] = *vsi->tx_rings[i];
1214                         tx_rings[i].count = new_tx_count;
1215                         /* the desc and bi pointers will be reallocated in the
1216                          * setup call
1217                          */
1218                         tx_rings[i].desc = NULL;
1219                         tx_rings[i].rx_bi = NULL;
1220                         err = i40e_setup_tx_descriptors(&tx_rings[i]);
1221                         if (err) {
1222                                 while (i) {
1223                                         i--;
1224                                         i40e_free_tx_resources(&tx_rings[i]);
1225                                 }
1226                                 kfree(tx_rings);
1227                                 tx_rings = NULL;
1228
1229                                 goto done;
1230                         }
1231                 }
1232         }
1233
1234         /* alloc updated Rx resources */
1235         if (new_rx_count != vsi->rx_rings[0]->count) {
1236                 netdev_info(netdev,
1237                             "Changing Rx descriptor count from %d to %d\n",
1238                             vsi->rx_rings[0]->count, new_rx_count);
1239                 rx_rings = kcalloc(vsi->alloc_queue_pairs,
1240                                    sizeof(struct i40e_ring), GFP_KERNEL);
1241                 if (!rx_rings) {
1242                         err = -ENOMEM;
1243                         goto free_tx;
1244                 }
1245
1246                 for (i = 0; i < vsi->num_queue_pairs; i++) {
1247                         /* clone ring and setup updated count */
1248                         rx_rings[i] = *vsi->rx_rings[i];
1249                         rx_rings[i].count = new_rx_count;
1250                         /* the desc and bi pointers will be reallocated in the
1251                          * setup call
1252                          */
1253                         rx_rings[i].desc = NULL;
1254                         rx_rings[i].rx_bi = NULL;
1255                         err = i40e_setup_rx_descriptors(&rx_rings[i]);
1256                         if (err) {
1257                                 while (i) {
1258                                         i--;
1259                                         i40e_free_rx_resources(&rx_rings[i]);
1260                                 }
1261                                 kfree(rx_rings);
1262                                 rx_rings = NULL;
1263
1264                                 goto free_tx;
1265                         }
1266                 }
1267         }
1268
1269         /* Bring interface down, copy in the new ring info,
1270          * then restore the interface
1271          */
1272         i40e_down(vsi);
1273
1274         if (tx_rings) {
1275                 for (i = 0; i < vsi->num_queue_pairs; i++) {
1276                         i40e_free_tx_resources(vsi->tx_rings[i]);
1277                         *vsi->tx_rings[i] = tx_rings[i];
1278                 }
1279                 kfree(tx_rings);
1280                 tx_rings = NULL;
1281         }
1282
1283         if (rx_rings) {
1284                 for (i = 0; i < vsi->num_queue_pairs; i++) {
1285                         i40e_free_rx_resources(vsi->rx_rings[i]);
1286                         *vsi->rx_rings[i] = rx_rings[i];
1287                 }
1288                 kfree(rx_rings);
1289                 rx_rings = NULL;
1290         }
1291
1292         i40e_up(vsi);
1293
1294 free_tx:
1295         /* error cleanup if the Rx allocations failed after getting Tx */
1296         if (tx_rings) {
1297                 for (i = 0; i < vsi->num_queue_pairs; i++)
1298                         i40e_free_tx_resources(&tx_rings[i]);
1299                 kfree(tx_rings);
1300                 tx_rings = NULL;
1301         }
1302
1303 done:
1304         clear_bit(__I40E_CONFIG_BUSY, &pf->state);
1305
1306         return err;
1307 }
1308
1309 static int i40e_get_sset_count(struct net_device *netdev, int sset)
1310 {
1311         struct i40e_netdev_priv *np = netdev_priv(netdev);
1312         struct i40e_vsi *vsi = np->vsi;
1313         struct i40e_pf *pf = vsi->back;
1314
1315         switch (sset) {
1316         case ETH_SS_TEST:
1317                 return I40E_TEST_LEN;
1318         case ETH_SS_STATS:
1319                 if (vsi == pf->vsi[pf->lan_vsi] && pf->hw.partition_id == 1) {
1320                         int len = I40E_PF_STATS_LEN(netdev);
1321
1322                         if ((pf->lan_veb != I40E_NO_VEB) &&
1323                             (pf->flags & I40E_FLAG_VEB_STATS_ENABLED))
1324                                 len += I40E_VEB_STATS_TOTAL;
1325                         return len;
1326                 } else {
1327                         return I40E_VSI_STATS_LEN(netdev);
1328                 }
1329         case ETH_SS_PRIV_FLAGS:
1330                 return I40E_PRIV_FLAGS_STR_LEN;
1331         default:
1332                 return -EOPNOTSUPP;
1333         }
1334 }
1335
1336 static void i40e_get_ethtool_stats(struct net_device *netdev,
1337                                    struct ethtool_stats *stats, u64 *data)
1338 {
1339         struct i40e_netdev_priv *np = netdev_priv(netdev);
1340         struct i40e_ring *tx_ring, *rx_ring;
1341         struct i40e_vsi *vsi = np->vsi;
1342         struct i40e_pf *pf = vsi->back;
1343         int i = 0;
1344         char *p;
1345         int j;
1346         struct rtnl_link_stats64 *net_stats = i40e_get_vsi_stats_struct(vsi);
1347         unsigned int start;
1348
1349         i40e_update_stats(vsi);
1350
1351         for (j = 0; j < I40E_NETDEV_STATS_LEN; j++) {
1352                 p = (char *)net_stats + i40e_gstrings_net_stats[j].stat_offset;
1353                 data[i++] = (i40e_gstrings_net_stats[j].sizeof_stat ==
1354                         sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1355         }
1356         for (j = 0; j < I40E_MISC_STATS_LEN; j++) {
1357                 p = (char *)vsi + i40e_gstrings_misc_stats[j].stat_offset;
1358                 data[i++] = (i40e_gstrings_misc_stats[j].sizeof_stat ==
1359                             sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1360         }
1361 #ifdef I40E_FCOE
1362         for (j = 0; j < I40E_FCOE_STATS_LEN; j++) {
1363                 p = (char *)vsi + i40e_gstrings_fcoe_stats[j].stat_offset;
1364                 data[i++] = (i40e_gstrings_fcoe_stats[j].sizeof_stat ==
1365                         sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1366         }
1367 #endif
1368         rcu_read_lock();
1369         for (j = 0; j < vsi->num_queue_pairs; j++) {
1370                 tx_ring = ACCESS_ONCE(vsi->tx_rings[j]);
1371
1372                 if (!tx_ring)
1373                         continue;
1374
1375                 /* process Tx ring statistics */
1376                 do {
1377                         start = u64_stats_fetch_begin_irq(&tx_ring->syncp);
1378                         data[i] = tx_ring->stats.packets;
1379                         data[i + 1] = tx_ring->stats.bytes;
1380                 } while (u64_stats_fetch_retry_irq(&tx_ring->syncp, start));
1381                 i += 2;
1382
1383                 /* Rx ring is the 2nd half of the queue pair */
1384                 rx_ring = &tx_ring[1];
1385                 do {
1386                         start = u64_stats_fetch_begin_irq(&rx_ring->syncp);
1387                         data[i] = rx_ring->stats.packets;
1388                         data[i + 1] = rx_ring->stats.bytes;
1389                 } while (u64_stats_fetch_retry_irq(&rx_ring->syncp, start));
1390                 i += 2;
1391         }
1392         rcu_read_unlock();
1393         if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1)
1394                 return;
1395
1396         if ((pf->lan_veb != I40E_NO_VEB) &&
1397             (pf->flags & I40E_FLAG_VEB_STATS_ENABLED)) {
1398                 struct i40e_veb *veb = pf->veb[pf->lan_veb];
1399
1400                 for (j = 0; j < I40E_VEB_STATS_LEN; j++) {
1401                         p = (char *)veb;
1402                         p += i40e_gstrings_veb_stats[j].stat_offset;
1403                         data[i++] = (i40e_gstrings_veb_stats[j].sizeof_stat ==
1404                                      sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1405                 }
1406         }
1407         for (j = 0; j < I40E_GLOBAL_STATS_LEN; j++) {
1408                 p = (char *)pf + i40e_gstrings_stats[j].stat_offset;
1409                 data[i++] = (i40e_gstrings_stats[j].sizeof_stat ==
1410                              sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1411         }
1412         for (j = 0; j < I40E_MAX_USER_PRIORITY; j++) {
1413                 data[i++] = pf->stats.priority_xon_tx[j];
1414                 data[i++] = pf->stats.priority_xoff_tx[j];
1415         }
1416         for (j = 0; j < I40E_MAX_USER_PRIORITY; j++) {
1417                 data[i++] = pf->stats.priority_xon_rx[j];
1418                 data[i++] = pf->stats.priority_xoff_rx[j];
1419         }
1420         for (j = 0; j < I40E_MAX_USER_PRIORITY; j++)
1421                 data[i++] = pf->stats.priority_xon_2_xoff[j];
1422 }
1423
1424 static void i40e_get_strings(struct net_device *netdev, u32 stringset,
1425                              u8 *data)
1426 {
1427         struct i40e_netdev_priv *np = netdev_priv(netdev);
1428         struct i40e_vsi *vsi = np->vsi;
1429         struct i40e_pf *pf = vsi->back;
1430         char *p = (char *)data;
1431         int i;
1432
1433         switch (stringset) {
1434         case ETH_SS_TEST:
1435                 for (i = 0; i < I40E_TEST_LEN; i++) {
1436                         memcpy(data, i40e_gstrings_test[i], ETH_GSTRING_LEN);
1437                         data += ETH_GSTRING_LEN;
1438                 }
1439                 break;
1440         case ETH_SS_STATS:
1441                 for (i = 0; i < I40E_NETDEV_STATS_LEN; i++) {
1442                         snprintf(p, ETH_GSTRING_LEN, "%s",
1443                                  i40e_gstrings_net_stats[i].stat_string);
1444                         p += ETH_GSTRING_LEN;
1445                 }
1446                 for (i = 0; i < I40E_MISC_STATS_LEN; i++) {
1447                         snprintf(p, ETH_GSTRING_LEN, "%s",
1448                                  i40e_gstrings_misc_stats[i].stat_string);
1449                         p += ETH_GSTRING_LEN;
1450                 }
1451 #ifdef I40E_FCOE
1452                 for (i = 0; i < I40E_FCOE_STATS_LEN; i++) {
1453                         snprintf(p, ETH_GSTRING_LEN, "%s",
1454                                  i40e_gstrings_fcoe_stats[i].stat_string);
1455                         p += ETH_GSTRING_LEN;
1456                 }
1457 #endif
1458                 for (i = 0; i < vsi->num_queue_pairs; i++) {
1459                         snprintf(p, ETH_GSTRING_LEN, "tx-%u.tx_packets", i);
1460                         p += ETH_GSTRING_LEN;
1461                         snprintf(p, ETH_GSTRING_LEN, "tx-%u.tx_bytes", i);
1462                         p += ETH_GSTRING_LEN;
1463                         snprintf(p, ETH_GSTRING_LEN, "rx-%u.rx_packets", i);
1464                         p += ETH_GSTRING_LEN;
1465                         snprintf(p, ETH_GSTRING_LEN, "rx-%u.rx_bytes", i);
1466                         p += ETH_GSTRING_LEN;
1467                 }
1468                 if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1)
1469                         return;
1470
1471                 if ((pf->lan_veb != I40E_NO_VEB) &&
1472                     (pf->flags & I40E_FLAG_VEB_STATS_ENABLED)) {
1473                         for (i = 0; i < I40E_VEB_STATS_LEN; i++) {
1474                                 snprintf(p, ETH_GSTRING_LEN, "veb.%s",
1475                                         i40e_gstrings_veb_stats[i].stat_string);
1476                                 p += ETH_GSTRING_LEN;
1477                         }
1478                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1479                                 snprintf(p, ETH_GSTRING_LEN,
1480                                          "veb.tc_%u_tx_packets", i);
1481                                 p += ETH_GSTRING_LEN;
1482                                 snprintf(p, ETH_GSTRING_LEN,
1483                                          "veb.tc_%u_tx_bytes", i);
1484                                 p += ETH_GSTRING_LEN;
1485                                 snprintf(p, ETH_GSTRING_LEN,
1486                                          "veb.tc_%u_rx_packets", i);
1487                                 p += ETH_GSTRING_LEN;
1488                                 snprintf(p, ETH_GSTRING_LEN,
1489                                          "veb.tc_%u_rx_bytes", i);
1490                                 p += ETH_GSTRING_LEN;
1491                         }
1492                 }
1493                 for (i = 0; i < I40E_GLOBAL_STATS_LEN; i++) {
1494                         snprintf(p, ETH_GSTRING_LEN, "port.%s",
1495                                  i40e_gstrings_stats[i].stat_string);
1496                         p += ETH_GSTRING_LEN;
1497                 }
1498                 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) {
1499                         snprintf(p, ETH_GSTRING_LEN,
1500                                  "port.tx_priority_%u_xon", i);
1501                         p += ETH_GSTRING_LEN;
1502                         snprintf(p, ETH_GSTRING_LEN,
1503                                  "port.tx_priority_%u_xoff", i);
1504                         p += ETH_GSTRING_LEN;
1505                 }
1506                 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) {
1507                         snprintf(p, ETH_GSTRING_LEN,
1508                                  "port.rx_priority_%u_xon", i);
1509                         p += ETH_GSTRING_LEN;
1510                         snprintf(p, ETH_GSTRING_LEN,
1511                                  "port.rx_priority_%u_xoff", i);
1512                         p += ETH_GSTRING_LEN;
1513                 }
1514                 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) {
1515                         snprintf(p, ETH_GSTRING_LEN,
1516                                  "port.rx_priority_%u_xon_2_xoff", i);
1517                         p += ETH_GSTRING_LEN;
1518                 }
1519                 /* BUG_ON(p - data != I40E_STATS_LEN * ETH_GSTRING_LEN); */
1520                 break;
1521         case ETH_SS_PRIV_FLAGS:
1522                 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) {
1523                         memcpy(data, i40e_priv_flags_strings[i],
1524                                ETH_GSTRING_LEN);
1525                         data += ETH_GSTRING_LEN;
1526                 }
1527                 break;
1528         default:
1529                 break;
1530         }
1531 }
1532
1533 static int i40e_get_ts_info(struct net_device *dev,
1534                             struct ethtool_ts_info *info)
1535 {
1536         struct i40e_pf *pf = i40e_netdev_to_pf(dev);
1537
1538         /* only report HW timestamping if PTP is enabled */
1539         if (!(pf->flags & I40E_FLAG_PTP))
1540                 return ethtool_op_get_ts_info(dev, info);
1541
1542         info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE |
1543                                 SOF_TIMESTAMPING_RX_SOFTWARE |
1544                                 SOF_TIMESTAMPING_SOFTWARE |
1545                                 SOF_TIMESTAMPING_TX_HARDWARE |
1546                                 SOF_TIMESTAMPING_RX_HARDWARE |
1547                                 SOF_TIMESTAMPING_RAW_HARDWARE;
1548
1549         if (pf->ptp_clock)
1550                 info->phc_index = ptp_clock_index(pf->ptp_clock);
1551         else
1552                 info->phc_index = -1;
1553
1554         info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON);
1555
1556         info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) |
1557                            BIT(HWTSTAMP_FILTER_PTP_V1_L4_EVENT) |
1558                            BIT(HWTSTAMP_FILTER_PTP_V2_EVENT);
1559
1560         return 0;
1561 }
1562
1563 static int i40e_link_test(struct net_device *netdev, u64 *data)
1564 {
1565         struct i40e_netdev_priv *np = netdev_priv(netdev);
1566         struct i40e_pf *pf = np->vsi->back;
1567         i40e_status status;
1568         bool link_up = false;
1569
1570         netif_info(pf, hw, netdev, "link test\n");
1571         status = i40e_get_link_status(&pf->hw, &link_up);
1572         if (status) {
1573                 netif_err(pf, drv, netdev, "link query timed out, please retry test\n");
1574                 *data = 1;
1575                 return *data;
1576         }
1577
1578         if (link_up)
1579                 *data = 0;
1580         else
1581                 *data = 1;
1582
1583         return *data;
1584 }
1585
1586 static int i40e_reg_test(struct net_device *netdev, u64 *data)
1587 {
1588         struct i40e_netdev_priv *np = netdev_priv(netdev);
1589         struct i40e_pf *pf = np->vsi->back;
1590
1591         netif_info(pf, hw, netdev, "register test\n");
1592         *data = i40e_diag_reg_test(&pf->hw);
1593
1594         return *data;
1595 }
1596
1597 static int i40e_eeprom_test(struct net_device *netdev, u64 *data)
1598 {
1599         struct i40e_netdev_priv *np = netdev_priv(netdev);
1600         struct i40e_pf *pf = np->vsi->back;
1601
1602         netif_info(pf, hw, netdev, "eeprom test\n");
1603         *data = i40e_diag_eeprom_test(&pf->hw);
1604
1605         /* forcebly clear the NVM Update state machine */
1606         pf->hw.nvmupd_state = I40E_NVMUPD_STATE_INIT;
1607
1608         return *data;
1609 }
1610
1611 static int i40e_intr_test(struct net_device *netdev, u64 *data)
1612 {
1613         struct i40e_netdev_priv *np = netdev_priv(netdev);
1614         struct i40e_pf *pf = np->vsi->back;
1615         u16 swc_old = pf->sw_int_count;
1616
1617         netif_info(pf, hw, netdev, "interrupt test\n");
1618         wr32(&pf->hw, I40E_PFINT_DYN_CTL0,
1619              (I40E_PFINT_DYN_CTL0_INTENA_MASK |
1620               I40E_PFINT_DYN_CTL0_SWINT_TRIG_MASK |
1621               I40E_PFINT_DYN_CTL0_ITR_INDX_MASK |
1622               I40E_PFINT_DYN_CTL0_SW_ITR_INDX_ENA_MASK |
1623               I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK));
1624         usleep_range(1000, 2000);
1625         *data = (swc_old == pf->sw_int_count);
1626
1627         return *data;
1628 }
1629
1630 static int i40e_loopback_test(struct net_device *netdev, u64 *data)
1631 {
1632         struct i40e_netdev_priv *np = netdev_priv(netdev);
1633         struct i40e_pf *pf = np->vsi->back;
1634
1635         netif_info(pf, hw, netdev, "loopback test not implemented\n");
1636         *data = 0;
1637
1638         return *data;
1639 }
1640
1641 static inline bool i40e_active_vfs(struct i40e_pf *pf)
1642 {
1643         struct i40e_vf *vfs = pf->vf;
1644         int i;
1645
1646         for (i = 0; i < pf->num_alloc_vfs; i++)
1647                 if (test_bit(I40E_VF_STAT_ACTIVE, &vfs[i].vf_states))
1648                         return true;
1649         return false;
1650 }
1651
1652 static inline bool i40e_active_vmdqs(struct i40e_pf *pf)
1653 {
1654         struct i40e_vsi **vsi = pf->vsi;
1655         int i;
1656
1657         for (i = 0; i < pf->num_alloc_vsi; i++) {
1658                 if (!vsi[i])
1659                         continue;
1660                 if (vsi[i]->type == I40E_VSI_VMDQ2)
1661                         return true;
1662         }
1663
1664         return false;
1665 }
1666
1667 static void i40e_diag_test(struct net_device *netdev,
1668                            struct ethtool_test *eth_test, u64 *data)
1669 {
1670         struct i40e_netdev_priv *np = netdev_priv(netdev);
1671         bool if_running = netif_running(netdev);
1672         struct i40e_pf *pf = np->vsi->back;
1673
1674         if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
1675                 /* Offline tests */
1676                 netif_info(pf, drv, netdev, "offline testing starting\n");
1677
1678                 set_bit(__I40E_TESTING, &pf->state);
1679
1680                 if (i40e_active_vfs(pf) || i40e_active_vmdqs(pf)) {
1681                         dev_warn(&pf->pdev->dev,
1682                                  "Please take active VFs and Netqueues offline and restart the adapter before running NIC diagnostics\n");
1683                         data[I40E_ETH_TEST_REG]         = 1;
1684                         data[I40E_ETH_TEST_EEPROM]      = 1;
1685                         data[I40E_ETH_TEST_INTR]        = 1;
1686                         data[I40E_ETH_TEST_LOOPBACK]    = 1;
1687                         data[I40E_ETH_TEST_LINK]        = 1;
1688                         eth_test->flags |= ETH_TEST_FL_FAILED;
1689                         clear_bit(__I40E_TESTING, &pf->state);
1690                         goto skip_ol_tests;
1691                 }
1692
1693                 /* If the device is online then take it offline */
1694                 if (if_running)
1695                         /* indicate we're in test mode */
1696                         dev_close(netdev);
1697                 else
1698                         /* This reset does not affect link - if it is
1699                          * changed to a type of reset that does affect
1700                          * link then the following link test would have
1701                          * to be moved to before the reset
1702                          */
1703                         i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED));
1704
1705                 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK]))
1706                         eth_test->flags |= ETH_TEST_FL_FAILED;
1707
1708                 if (i40e_eeprom_test(netdev, &data[I40E_ETH_TEST_EEPROM]))
1709                         eth_test->flags |= ETH_TEST_FL_FAILED;
1710
1711                 if (i40e_intr_test(netdev, &data[I40E_ETH_TEST_INTR]))
1712                         eth_test->flags |= ETH_TEST_FL_FAILED;
1713
1714                 if (i40e_loopback_test(netdev, &data[I40E_ETH_TEST_LOOPBACK]))
1715                         eth_test->flags |= ETH_TEST_FL_FAILED;
1716
1717                 /* run reg test last, a reset is required after it */
1718                 if (i40e_reg_test(netdev, &data[I40E_ETH_TEST_REG]))
1719                         eth_test->flags |= ETH_TEST_FL_FAILED;
1720
1721                 clear_bit(__I40E_TESTING, &pf->state);
1722                 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED));
1723
1724                 if (if_running)
1725                         dev_open(netdev);
1726         } else {
1727                 /* Online tests */
1728                 netif_info(pf, drv, netdev, "online testing starting\n");
1729
1730                 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK]))
1731                         eth_test->flags |= ETH_TEST_FL_FAILED;
1732
1733                 /* Offline only tests, not run in online; pass by default */
1734                 data[I40E_ETH_TEST_REG] = 0;
1735                 data[I40E_ETH_TEST_EEPROM] = 0;
1736                 data[I40E_ETH_TEST_INTR] = 0;
1737                 data[I40E_ETH_TEST_LOOPBACK] = 0;
1738         }
1739
1740 skip_ol_tests:
1741
1742         netif_info(pf, drv, netdev, "testing finished\n");
1743 }
1744
1745 static void i40e_get_wol(struct net_device *netdev,
1746                          struct ethtool_wolinfo *wol)
1747 {
1748         struct i40e_netdev_priv *np = netdev_priv(netdev);
1749         struct i40e_pf *pf = np->vsi->back;
1750         struct i40e_hw *hw = &pf->hw;
1751         u16 wol_nvm_bits;
1752
1753         /* NVM bit on means WoL disabled for the port */
1754         i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits);
1755         if ((BIT(hw->port) & wol_nvm_bits) || (hw->partition_id != 1)) {
1756                 wol->supported = 0;
1757                 wol->wolopts = 0;
1758         } else {
1759                 wol->supported = WAKE_MAGIC;
1760                 wol->wolopts = (pf->wol_en ? WAKE_MAGIC : 0);
1761         }
1762 }
1763
1764 /**
1765  * i40e_set_wol - set the WakeOnLAN configuration
1766  * @netdev: the netdev in question
1767  * @wol: the ethtool WoL setting data
1768  **/
1769 static int i40e_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
1770 {
1771         struct i40e_netdev_priv *np = netdev_priv(netdev);
1772         struct i40e_pf *pf = np->vsi->back;
1773         struct i40e_vsi *vsi = np->vsi;
1774         struct i40e_hw *hw = &pf->hw;
1775         u16 wol_nvm_bits;
1776
1777         /* WoL not supported if this isn't the controlling PF on the port */
1778         if (hw->partition_id != 1) {
1779                 i40e_partition_setting_complaint(pf);
1780                 return -EOPNOTSUPP;
1781         }
1782
1783         if (vsi != pf->vsi[pf->lan_vsi])
1784                 return -EOPNOTSUPP;
1785
1786         /* NVM bit on means WoL disabled for the port */
1787         i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits);
1788         if (BIT(hw->port) & wol_nvm_bits)
1789                 return -EOPNOTSUPP;
1790
1791         /* only magic packet is supported */
1792         if (wol->wolopts && (wol->wolopts != WAKE_MAGIC))
1793                 return -EOPNOTSUPP;
1794
1795         /* is this a new value? */
1796         if (pf->wol_en != !!wol->wolopts) {
1797                 pf->wol_en = !!wol->wolopts;
1798                 device_set_wakeup_enable(&pf->pdev->dev, pf->wol_en);
1799         }
1800
1801         return 0;
1802 }
1803
1804 static int i40e_set_phys_id(struct net_device *netdev,
1805                             enum ethtool_phys_id_state state)
1806 {
1807         struct i40e_netdev_priv *np = netdev_priv(netdev);
1808         struct i40e_pf *pf = np->vsi->back;
1809         struct i40e_hw *hw = &pf->hw;
1810         int blink_freq = 2;
1811
1812         switch (state) {
1813         case ETHTOOL_ID_ACTIVE:
1814                 pf->led_status = i40e_led_get(hw);
1815                 return blink_freq;
1816         case ETHTOOL_ID_ON:
1817                 i40e_led_set(hw, 0xF, false);
1818                 break;
1819         case ETHTOOL_ID_OFF:
1820                 i40e_led_set(hw, 0x0, false);
1821                 break;
1822         case ETHTOOL_ID_INACTIVE:
1823                 i40e_led_set(hw, pf->led_status, false);
1824                 break;
1825         default:
1826                 break;
1827         }
1828
1829         return 0;
1830 }
1831
1832 /* NOTE: i40e hardware uses a conversion factor of 2 for Interrupt
1833  * Throttle Rate (ITR) ie. ITR(1) = 2us ITR(10) = 20 us, and also
1834  * 125us (8000 interrupts per second) == ITR(62)
1835  */
1836
1837 static int i40e_get_coalesce(struct net_device *netdev,
1838                              struct ethtool_coalesce *ec)
1839 {
1840         struct i40e_netdev_priv *np = netdev_priv(netdev);
1841         struct i40e_vsi *vsi = np->vsi;
1842
1843         ec->tx_max_coalesced_frames_irq = vsi->work_limit;
1844         ec->rx_max_coalesced_frames_irq = vsi->work_limit;
1845
1846         if (ITR_IS_DYNAMIC(vsi->rx_itr_setting))
1847                 ec->use_adaptive_rx_coalesce = 1;
1848
1849         if (ITR_IS_DYNAMIC(vsi->tx_itr_setting))
1850                 ec->use_adaptive_tx_coalesce = 1;
1851
1852         ec->rx_coalesce_usecs = vsi->rx_itr_setting & ~I40E_ITR_DYNAMIC;
1853         ec->tx_coalesce_usecs = vsi->tx_itr_setting & ~I40E_ITR_DYNAMIC;
1854         /* we use the _usecs_high to store/set the interrupt rate limit
1855          * that the hardware supports, that almost but not quite
1856          * fits the original intent of the ethtool variable,
1857          * the rx_coalesce_usecs_high limits total interrupts
1858          * per second from both tx/rx sources.
1859          */
1860         ec->rx_coalesce_usecs_high = vsi->int_rate_limit;
1861         ec->tx_coalesce_usecs_high = vsi->int_rate_limit;
1862
1863         return 0;
1864 }
1865
1866 static int i40e_set_coalesce(struct net_device *netdev,
1867                              struct ethtool_coalesce *ec)
1868 {
1869         struct i40e_netdev_priv *np = netdev_priv(netdev);
1870         struct i40e_q_vector *q_vector;
1871         struct i40e_vsi *vsi = np->vsi;
1872         struct i40e_pf *pf = vsi->back;
1873         struct i40e_hw *hw = &pf->hw;
1874         u16 vector;
1875         int i;
1876
1877         if (ec->tx_max_coalesced_frames_irq || ec->rx_max_coalesced_frames_irq)
1878                 vsi->work_limit = ec->tx_max_coalesced_frames_irq;
1879
1880         /* tx_coalesce_usecs_high is ignored, use rx-usecs-high instead */
1881         if (ec->tx_coalesce_usecs_high != vsi->int_rate_limit) {
1882                 netif_info(pf, drv, netdev, "tx-usecs-high is not used, please program rx-usecs-high\n");
1883                 return -EINVAL;
1884         }
1885
1886         if (ec->rx_coalesce_usecs_high >= INTRL_REG_TO_USEC(I40E_MAX_INTRL)) {
1887                 netif_info(pf, drv, netdev, "Invalid value, rx-usecs-high range is 0-235\n");
1888                 return -EINVAL;
1889         }
1890
1891         vector = vsi->base_vector;
1892         if ((ec->rx_coalesce_usecs >= (I40E_MIN_ITR << 1)) &&
1893             (ec->rx_coalesce_usecs <= (I40E_MAX_ITR << 1))) {
1894                 vsi->rx_itr_setting = ec->rx_coalesce_usecs;
1895         } else if (ec->rx_coalesce_usecs == 0) {
1896                 vsi->rx_itr_setting = ec->rx_coalesce_usecs;
1897                 if (ec->use_adaptive_rx_coalesce)
1898                         netif_info(pf, drv, netdev, "rx-usecs=0, need to disable adaptive-rx for a complete disable\n");
1899         } else {
1900                 netif_info(pf, drv, netdev, "Invalid value, rx-usecs range is 0-8160\n");
1901                 return -EINVAL;
1902         }
1903
1904         vsi->int_rate_limit = ec->rx_coalesce_usecs_high;
1905
1906         if ((ec->tx_coalesce_usecs >= (I40E_MIN_ITR << 1)) &&
1907             (ec->tx_coalesce_usecs <= (I40E_MAX_ITR << 1))) {
1908                 vsi->tx_itr_setting = ec->tx_coalesce_usecs;
1909         } else if (ec->tx_coalesce_usecs == 0) {
1910                 vsi->tx_itr_setting = ec->tx_coalesce_usecs;
1911                 if (ec->use_adaptive_tx_coalesce)
1912                         netif_info(pf, drv, netdev, "tx-usecs=0, need to disable adaptive-tx for a complete disable\n");
1913         } else {
1914                 netif_info(pf, drv, netdev,
1915                            "Invalid value, tx-usecs range is 0-8160\n");
1916                 return -EINVAL;
1917         }
1918
1919         if (ec->use_adaptive_rx_coalesce)
1920                 vsi->rx_itr_setting |= I40E_ITR_DYNAMIC;
1921         else
1922                 vsi->rx_itr_setting &= ~I40E_ITR_DYNAMIC;
1923
1924         if (ec->use_adaptive_tx_coalesce)
1925                 vsi->tx_itr_setting |= I40E_ITR_DYNAMIC;
1926         else
1927                 vsi->tx_itr_setting &= ~I40E_ITR_DYNAMIC;
1928
1929         for (i = 0; i < vsi->num_q_vectors; i++, vector++) {
1930                 u16 intrl = INTRL_USEC_TO_REG(vsi->int_rate_limit);
1931
1932                 q_vector = vsi->q_vectors[i];
1933                 q_vector->rx.itr = ITR_TO_REG(vsi->rx_itr_setting);
1934                 wr32(hw, I40E_PFINT_ITRN(0, vector - 1), q_vector->rx.itr);
1935                 q_vector->tx.itr = ITR_TO_REG(vsi->tx_itr_setting);
1936                 wr32(hw, I40E_PFINT_ITRN(1, vector - 1), q_vector->tx.itr);
1937                 wr32(hw, I40E_PFINT_RATEN(vector - 1), intrl);
1938                 i40e_flush(hw);
1939         }
1940
1941         return 0;
1942 }
1943
1944 /**
1945  * i40e_get_rss_hash_opts - Get RSS hash Input Set for each flow type
1946  * @pf: pointer to the physical function struct
1947  * @cmd: ethtool rxnfc command
1948  *
1949  * Returns Success if the flow is supported, else Invalid Input.
1950  **/
1951 static int i40e_get_rss_hash_opts(struct i40e_pf *pf, struct ethtool_rxnfc *cmd)
1952 {
1953         cmd->data = 0;
1954
1955         if (pf->vsi[pf->lan_vsi]->rxnfc.data != 0) {
1956                 cmd->data = pf->vsi[pf->lan_vsi]->rxnfc.data;
1957                 cmd->flow_type = pf->vsi[pf->lan_vsi]->rxnfc.flow_type;
1958                 return 0;
1959         }
1960         /* Report default options for RSS on i40e */
1961         switch (cmd->flow_type) {
1962         case TCP_V4_FLOW:
1963         case UDP_V4_FLOW:
1964                 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
1965         /* fall through to add IP fields */
1966         case SCTP_V4_FLOW:
1967         case AH_ESP_V4_FLOW:
1968         case AH_V4_FLOW:
1969         case ESP_V4_FLOW:
1970         case IPV4_FLOW:
1971                 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
1972                 break;
1973         case TCP_V6_FLOW:
1974         case UDP_V6_FLOW:
1975                 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
1976         /* fall through to add IP fields */
1977         case SCTP_V6_FLOW:
1978         case AH_ESP_V6_FLOW:
1979         case AH_V6_FLOW:
1980         case ESP_V6_FLOW:
1981         case IPV6_FLOW:
1982                 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
1983                 break;
1984         default:
1985                 return -EINVAL;
1986         }
1987
1988         return 0;
1989 }
1990
1991 /**
1992  * i40e_get_ethtool_fdir_all - Populates the rule count of a command
1993  * @pf: Pointer to the physical function struct
1994  * @cmd: The command to get or set Rx flow classification rules
1995  * @rule_locs: Array of used rule locations
1996  *
1997  * This function populates both the total and actual rule count of
1998  * the ethtool flow classification command
1999  *
2000  * Returns 0 on success or -EMSGSIZE if entry not found
2001  **/
2002 static int i40e_get_ethtool_fdir_all(struct i40e_pf *pf,
2003                                      struct ethtool_rxnfc *cmd,
2004                                      u32 *rule_locs)
2005 {
2006         struct i40e_fdir_filter *rule;
2007         struct hlist_node *node2;
2008         int cnt = 0;
2009
2010         /* report total rule count */
2011         cmd->data = i40e_get_fd_cnt_all(pf);
2012
2013         hlist_for_each_entry_safe(rule, node2,
2014                                   &pf->fdir_filter_list, fdir_node) {
2015                 if (cnt == cmd->rule_cnt)
2016                         return -EMSGSIZE;
2017
2018                 rule_locs[cnt] = rule->fd_id;
2019                 cnt++;
2020         }
2021
2022         cmd->rule_cnt = cnt;
2023
2024         return 0;
2025 }
2026
2027 /**
2028  * i40e_get_ethtool_fdir_entry - Look up a filter based on Rx flow
2029  * @pf: Pointer to the physical function struct
2030  * @cmd: The command to get or set Rx flow classification rules
2031  *
2032  * This function looks up a filter based on the Rx flow classification
2033  * command and fills the flow spec info for it if found
2034  *
2035  * Returns 0 on success or -EINVAL if filter not found
2036  **/
2037 static int i40e_get_ethtool_fdir_entry(struct i40e_pf *pf,
2038                                        struct ethtool_rxnfc *cmd)
2039 {
2040         struct ethtool_rx_flow_spec *fsp =
2041                         (struct ethtool_rx_flow_spec *)&cmd->fs;
2042         struct i40e_fdir_filter *rule = NULL;
2043         struct hlist_node *node2;
2044
2045         hlist_for_each_entry_safe(rule, node2,
2046                                   &pf->fdir_filter_list, fdir_node) {
2047                 if (fsp->location <= rule->fd_id)
2048                         break;
2049         }
2050
2051         if (!rule || fsp->location != rule->fd_id)
2052                 return -EINVAL;
2053
2054         fsp->flow_type = rule->flow_type;
2055         if (fsp->flow_type == IP_USER_FLOW) {
2056                 fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4;
2057                 fsp->h_u.usr_ip4_spec.proto = 0;
2058                 fsp->m_u.usr_ip4_spec.proto = 0;
2059         }
2060
2061         /* Reverse the src and dest notion, since the HW views them from
2062          * Tx perspective where as the user expects it from Rx filter view.
2063          */
2064         fsp->h_u.tcp_ip4_spec.psrc = rule->dst_port;
2065         fsp->h_u.tcp_ip4_spec.pdst = rule->src_port;
2066         fsp->h_u.tcp_ip4_spec.ip4src = rule->dst_ip[0];
2067         fsp->h_u.tcp_ip4_spec.ip4dst = rule->src_ip[0];
2068
2069         if (rule->dest_ctl == I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET)
2070                 fsp->ring_cookie = RX_CLS_FLOW_DISC;
2071         else
2072                 fsp->ring_cookie = rule->q_index;
2073
2074         if (rule->dest_vsi != pf->vsi[pf->lan_vsi]->id) {
2075                 struct i40e_vsi *vsi;
2076
2077                 vsi = i40e_find_vsi_from_id(pf, rule->dest_vsi);
2078                 if (vsi && vsi->type == I40E_VSI_SRIOV) {
2079                         fsp->h_ext.data[1] = htonl(vsi->vf_id);
2080                         fsp->m_ext.data[1] = htonl(0x1);
2081                 }
2082         }
2083
2084         return 0;
2085 }
2086
2087 /**
2088  * i40e_get_rxnfc - command to get RX flow classification rules
2089  * @netdev: network interface device structure
2090  * @cmd: ethtool rxnfc command
2091  *
2092  * Returns Success if the command is supported.
2093  **/
2094 static int i40e_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd,
2095                           u32 *rule_locs)
2096 {
2097         struct i40e_netdev_priv *np = netdev_priv(netdev);
2098         struct i40e_vsi *vsi = np->vsi;
2099         struct i40e_pf *pf = vsi->back;
2100         int ret = -EOPNOTSUPP;
2101
2102         switch (cmd->cmd) {
2103         case ETHTOOL_GRXRINGS:
2104                 cmd->data = vsi->alloc_queue_pairs;
2105                 ret = 0;
2106                 break;
2107         case ETHTOOL_GRXFH:
2108                 ret = i40e_get_rss_hash_opts(pf, cmd);
2109                 break;
2110         case ETHTOOL_GRXCLSRLCNT:
2111                 cmd->rule_cnt = pf->fdir_pf_active_filters;
2112                 /* report total rule count */
2113                 cmd->data = i40e_get_fd_cnt_all(pf);
2114                 ret = 0;
2115                 break;
2116         case ETHTOOL_GRXCLSRULE:
2117                 ret = i40e_get_ethtool_fdir_entry(pf, cmd);
2118                 break;
2119         case ETHTOOL_GRXCLSRLALL:
2120                 ret = i40e_get_ethtool_fdir_all(pf, cmd, rule_locs);
2121                 break;
2122         default:
2123                 break;
2124         }
2125
2126         return ret;
2127 }
2128
2129 /**
2130  * i40e_set_rss_hash_opt - Enable/Disable flow types for RSS hash
2131  * @pf: pointer to the physical function struct
2132  * @cmd: ethtool rxnfc command
2133  *
2134  * Returns Success if the flow input set is supported.
2135  **/
2136 static int i40e_set_rss_hash_opt(struct i40e_pf *pf, struct ethtool_rxnfc *nfc)
2137 {
2138         struct i40e_hw *hw = &pf->hw;
2139         u64 hena = (u64)rd32(hw, I40E_PFQF_HENA(0)) |
2140                    ((u64)rd32(hw, I40E_PFQF_HENA(1)) << 32);
2141
2142         /* RSS does not support anything other than hashing
2143          * to queues on src and dst IPs and ports
2144          */
2145         if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST |
2146                           RXH_L4_B_0_1 | RXH_L4_B_2_3))
2147                 return -EINVAL;
2148
2149         /* We need at least the IP SRC and DEST fields for hashing */
2150         if (!(nfc->data & RXH_IP_SRC) ||
2151             !(nfc->data & RXH_IP_DST))
2152                 return -EINVAL;
2153
2154         switch (nfc->flow_type) {
2155         case TCP_V4_FLOW:
2156                 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
2157                 case 0:
2158                         hena &= ~BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP);
2159                         break;
2160                 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
2161                         hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP);
2162                         break;
2163                 default:
2164                         return -EINVAL;
2165                 }
2166                 break;
2167         case TCP_V6_FLOW:
2168                 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
2169                 case 0:
2170                         hena &= ~BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_TCP);
2171                         break;
2172                 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
2173                         hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_TCP);
2174                         break;
2175                 default:
2176                         return -EINVAL;
2177                 }
2178                 break;
2179         case UDP_V4_FLOW:
2180                 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
2181                 case 0:
2182                         hena &= ~(BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_UDP) |
2183                                   BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4));
2184                         break;
2185                 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
2186                         hena |= (BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_UDP) |
2187                                  BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4));
2188                         break;
2189                 default:
2190                         return -EINVAL;
2191                 }
2192                 break;
2193         case UDP_V6_FLOW:
2194                 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
2195                 case 0:
2196                         hena &= ~(BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_UDP) |
2197                                   BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6));
2198                         break;
2199                 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
2200                         hena |= (BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_UDP) |
2201                                  BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6));
2202                         break;
2203                 default:
2204                         return -EINVAL;
2205                 }
2206                 break;
2207         case AH_ESP_V4_FLOW:
2208         case AH_V4_FLOW:
2209         case ESP_V4_FLOW:
2210         case SCTP_V4_FLOW:
2211                 if ((nfc->data & RXH_L4_B_0_1) ||
2212                     (nfc->data & RXH_L4_B_2_3))
2213                         return -EINVAL;
2214                 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER);
2215                 break;
2216         case AH_ESP_V6_FLOW:
2217         case AH_V6_FLOW:
2218         case ESP_V6_FLOW:
2219         case SCTP_V6_FLOW:
2220                 if ((nfc->data & RXH_L4_B_0_1) ||
2221                     (nfc->data & RXH_L4_B_2_3))
2222                         return -EINVAL;
2223                 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER);
2224                 break;
2225         case IPV4_FLOW:
2226                 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER) |
2227                         BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4);
2228                 break;
2229         case IPV6_FLOW:
2230                 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER) |
2231                         BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6);
2232                 break;
2233         default:
2234                 return -EINVAL;
2235         }
2236
2237         wr32(hw, I40E_PFQF_HENA(0), (u32)hena);
2238         wr32(hw, I40E_PFQF_HENA(1), (u32)(hena >> 32));
2239         i40e_flush(hw);
2240
2241         /* Save setting for future output/update */
2242         pf->vsi[pf->lan_vsi]->rxnfc = *nfc;
2243
2244         return 0;
2245 }
2246
2247 /**
2248  * i40e_match_fdir_input_set - Match a new filter against an existing one
2249  * @rule: The filter already added
2250  * @input: The new filter to comapre against
2251  *
2252  * Returns true if the two input set match
2253  **/
2254 static bool i40e_match_fdir_input_set(struct i40e_fdir_filter *rule,
2255                                       struct i40e_fdir_filter *input)
2256 {
2257         if ((rule->dst_ip[0] != input->dst_ip[0]) ||
2258             (rule->src_ip[0] != input->src_ip[0]) ||
2259             (rule->dst_port != input->dst_port) ||
2260             (rule->src_port != input->src_port))
2261                 return false;
2262         return true;
2263 }
2264
2265 /**
2266  * i40e_update_ethtool_fdir_entry - Updates the fdir filter entry
2267  * @vsi: Pointer to the targeted VSI
2268  * @input: The filter to update or NULL to indicate deletion
2269  * @sw_idx: Software index to the filter
2270  * @cmd: The command to get or set Rx flow classification rules
2271  *
2272  * This function updates (or deletes) a Flow Director entry from
2273  * the hlist of the corresponding PF
2274  *
2275  * Returns 0 on success
2276  **/
2277 static int i40e_update_ethtool_fdir_entry(struct i40e_vsi *vsi,
2278                                           struct i40e_fdir_filter *input,
2279                                           u16 sw_idx,
2280                                           struct ethtool_rxnfc *cmd)
2281 {
2282         struct i40e_fdir_filter *rule, *parent;
2283         struct i40e_pf *pf = vsi->back;
2284         struct hlist_node *node2;
2285         int err = -EINVAL;
2286
2287         parent = NULL;
2288         rule = NULL;
2289
2290         hlist_for_each_entry_safe(rule, node2,
2291                                   &pf->fdir_filter_list, fdir_node) {
2292                 /* hash found, or no matching entry */
2293                 if (rule->fd_id >= sw_idx)
2294                         break;
2295                 parent = rule;
2296         }
2297
2298         /* if there is an old rule occupying our place remove it */
2299         if (rule && (rule->fd_id == sw_idx)) {
2300                 if (input && !i40e_match_fdir_input_set(rule, input))
2301                         err = i40e_add_del_fdir(vsi, rule, false);
2302                 else if (!input)
2303                         err = i40e_add_del_fdir(vsi, rule, false);
2304                 hlist_del(&rule->fdir_node);
2305                 kfree(rule);
2306                 pf->fdir_pf_active_filters--;
2307         }
2308
2309         /* If no input this was a delete, err should be 0 if a rule was
2310          * successfully found and removed from the list else -EINVAL
2311          */
2312         if (!input)
2313                 return err;
2314
2315         /* initialize node and set software index */
2316         INIT_HLIST_NODE(&input->fdir_node);
2317
2318         /* add filter to the list */
2319         if (parent)
2320                 hlist_add_behind(&input->fdir_node, &parent->fdir_node);
2321         else
2322                 hlist_add_head(&input->fdir_node,
2323                                &pf->fdir_filter_list);
2324
2325         /* update counts */
2326         pf->fdir_pf_active_filters++;
2327
2328         return 0;
2329 }
2330
2331 /**
2332  * i40e_del_fdir_entry - Deletes a Flow Director filter entry
2333  * @vsi: Pointer to the targeted VSI
2334  * @cmd: The command to get or set Rx flow classification rules
2335  *
2336  * The function removes a Flow Director filter entry from the
2337  * hlist of the corresponding PF
2338  *
2339  * Returns 0 on success
2340  */
2341 static int i40e_del_fdir_entry(struct i40e_vsi *vsi,
2342                                struct ethtool_rxnfc *cmd)
2343 {
2344         struct ethtool_rx_flow_spec *fsp =
2345                 (struct ethtool_rx_flow_spec *)&cmd->fs;
2346         struct i40e_pf *pf = vsi->back;
2347         int ret = 0;
2348
2349         if (test_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state) ||
2350             test_bit(__I40E_RESET_INTR_RECEIVED, &pf->state))
2351                 return -EBUSY;
2352
2353         if (test_bit(__I40E_FD_FLUSH_REQUESTED, &pf->state))
2354                 return -EBUSY;
2355
2356         ret = i40e_update_ethtool_fdir_entry(vsi, NULL, fsp->location, cmd);
2357
2358         i40e_fdir_check_and_reenable(pf);
2359         return ret;
2360 }
2361
2362 /**
2363  * i40e_add_fdir_ethtool - Add/Remove Flow Director filters
2364  * @vsi: pointer to the targeted VSI
2365  * @cmd: command to get or set RX flow classification rules
2366  *
2367  * Add Flow Director filters for a specific flow spec based on their
2368  * protocol.  Returns 0 if the filters were successfully added.
2369  **/
2370 static int i40e_add_fdir_ethtool(struct i40e_vsi *vsi,
2371                                  struct ethtool_rxnfc *cmd)
2372 {
2373         struct ethtool_rx_flow_spec *fsp;
2374         struct i40e_fdir_filter *input;
2375         struct i40e_pf *pf;
2376         int ret = -EINVAL;
2377         u16 vf_id;
2378
2379         if (!vsi)
2380                 return -EINVAL;
2381
2382         pf = vsi->back;
2383
2384         if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED))
2385                 return -EOPNOTSUPP;
2386
2387         if (pf->auto_disable_flags & I40E_FLAG_FD_SB_ENABLED)
2388                 return -ENOSPC;
2389
2390         if (test_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state) ||
2391             test_bit(__I40E_RESET_INTR_RECEIVED, &pf->state))
2392                 return -EBUSY;
2393
2394         if (test_bit(__I40E_FD_FLUSH_REQUESTED, &pf->state))
2395                 return -EBUSY;
2396
2397         fsp = (struct ethtool_rx_flow_spec *)&cmd->fs;
2398
2399         if (fsp->location >= (pf->hw.func_caps.fd_filters_best_effort +
2400                               pf->hw.func_caps.fd_filters_guaranteed)) {
2401                 return -EINVAL;
2402         }
2403
2404         if ((fsp->ring_cookie != RX_CLS_FLOW_DISC) &&
2405             (fsp->ring_cookie >= vsi->num_queue_pairs))
2406                 return -EINVAL;
2407
2408         input = kzalloc(sizeof(*input), GFP_KERNEL);
2409
2410         if (!input)
2411                 return -ENOMEM;
2412
2413         input->fd_id = fsp->location;
2414
2415         if (fsp->ring_cookie == RX_CLS_FLOW_DISC)
2416                 input->dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET;
2417         else
2418                 input->dest_ctl =
2419                              I40E_FILTER_PROGRAM_DESC_DEST_DIRECT_PACKET_QINDEX;
2420
2421         input->q_index = fsp->ring_cookie;
2422         input->flex_off = 0;
2423         input->pctype = 0;
2424         input->dest_vsi = vsi->id;
2425         input->fd_status = I40E_FILTER_PROGRAM_DESC_FD_STATUS_FD_ID;
2426         input->cnt_index  = I40E_FD_SB_STAT_IDX(pf->hw.pf_id);
2427         input->flow_type = fsp->flow_type;
2428         input->ip4_proto = fsp->h_u.usr_ip4_spec.proto;
2429
2430         /* Reverse the src and dest notion, since the HW expects them to be from
2431          * Tx perspective where as the input from user is from Rx filter view.
2432          */
2433         input->dst_port = fsp->h_u.tcp_ip4_spec.psrc;
2434         input->src_port = fsp->h_u.tcp_ip4_spec.pdst;
2435         input->dst_ip[0] = fsp->h_u.tcp_ip4_spec.ip4src;
2436         input->src_ip[0] = fsp->h_u.tcp_ip4_spec.ip4dst;
2437
2438         if (ntohl(fsp->m_ext.data[1])) {
2439                 if (ntohl(fsp->h_ext.data[1]) >= pf->num_alloc_vfs) {
2440                         netif_info(pf, drv, vsi->netdev, "Invalid VF id\n");
2441                         goto free_input;
2442                 }
2443                 vf_id = ntohl(fsp->h_ext.data[1]);
2444                 /* Find vsi id from vf id and override dest vsi */
2445                 input->dest_vsi = pf->vf[vf_id].lan_vsi_id;
2446                 if (input->q_index >= pf->vf[vf_id].num_queue_pairs) {
2447                         netif_info(pf, drv, vsi->netdev, "Invalid queue id\n");
2448                         goto free_input;
2449                 }
2450         }
2451
2452         ret = i40e_add_del_fdir(vsi, input, true);
2453 free_input:
2454         if (ret)
2455                 kfree(input);
2456         else
2457                 i40e_update_ethtool_fdir_entry(vsi, input, fsp->location, NULL);
2458
2459         return ret;
2460 }
2461
2462 /**
2463  * i40e_set_rxnfc - command to set RX flow classification rules
2464  * @netdev: network interface device structure
2465  * @cmd: ethtool rxnfc command
2466  *
2467  * Returns Success if the command is supported.
2468  **/
2469 static int i40e_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd)
2470 {
2471         struct i40e_netdev_priv *np = netdev_priv(netdev);
2472         struct i40e_vsi *vsi = np->vsi;
2473         struct i40e_pf *pf = vsi->back;
2474         int ret = -EOPNOTSUPP;
2475
2476         switch (cmd->cmd) {
2477         case ETHTOOL_SRXFH:
2478                 ret = i40e_set_rss_hash_opt(pf, cmd);
2479                 break;
2480         case ETHTOOL_SRXCLSRLINS:
2481                 ret = i40e_add_fdir_ethtool(vsi, cmd);
2482                 break;
2483         case ETHTOOL_SRXCLSRLDEL:
2484                 ret = i40e_del_fdir_entry(vsi, cmd);
2485                 break;
2486         default:
2487                 break;
2488         }
2489
2490         return ret;
2491 }
2492
2493 /**
2494  * i40e_max_channels - get Max number of combined channels supported
2495  * @vsi: vsi pointer
2496  **/
2497 static unsigned int i40e_max_channels(struct i40e_vsi *vsi)
2498 {
2499         /* TODO: This code assumes DCB and FD is disabled for now. */
2500         return vsi->alloc_queue_pairs;
2501 }
2502
2503 /**
2504  * i40e_get_channels - Get the current channels enabled and max supported etc.
2505  * @netdev: network interface device structure
2506  * @ch: ethtool channels structure
2507  *
2508  * We don't support separate tx and rx queues as channels. The other count
2509  * represents how many queues are being used for control. max_combined counts
2510  * how many queue pairs we can support. They may not be mapped 1 to 1 with
2511  * q_vectors since we support a lot more queue pairs than q_vectors.
2512  **/
2513 static void i40e_get_channels(struct net_device *dev,
2514                                struct ethtool_channels *ch)
2515 {
2516         struct i40e_netdev_priv *np = netdev_priv(dev);
2517         struct i40e_vsi *vsi = np->vsi;
2518         struct i40e_pf *pf = vsi->back;
2519
2520         /* report maximum channels */
2521         ch->max_combined = i40e_max_channels(vsi);
2522
2523         /* report info for other vector */
2524         ch->other_count = (pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0;
2525         ch->max_other = ch->other_count;
2526
2527         /* Note: This code assumes DCB is disabled for now. */
2528         ch->combined_count = vsi->num_queue_pairs;
2529 }
2530
2531 /**
2532  * i40e_set_channels - Set the new channels count.
2533  * @netdev: network interface device structure
2534  * @ch: ethtool channels structure
2535  *
2536  * The new channels count may not be the same as requested by the user
2537  * since it gets rounded down to a power of 2 value.
2538  **/
2539 static int i40e_set_channels(struct net_device *dev,
2540                               struct ethtool_channels *ch)
2541 {
2542         struct i40e_netdev_priv *np = netdev_priv(dev);
2543         unsigned int count = ch->combined_count;
2544         struct i40e_vsi *vsi = np->vsi;
2545         struct i40e_pf *pf = vsi->back;
2546         int new_count;
2547
2548         /* We do not support setting channels for any other VSI at present */
2549         if (vsi->type != I40E_VSI_MAIN)
2550                 return -EINVAL;
2551
2552         /* verify they are not requesting separate vectors */
2553         if (!count || ch->rx_count || ch->tx_count)
2554                 return -EINVAL;
2555
2556         /* verify other_count has not changed */
2557         if (ch->other_count != ((pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0))
2558                 return -EINVAL;
2559
2560         /* verify the number of channels does not exceed hardware limits */
2561         if (count > i40e_max_channels(vsi))
2562                 return -EINVAL;
2563
2564         /* update feature limits from largest to smallest supported values */
2565         /* TODO: Flow director limit, DCB etc */
2566
2567         /* use rss_reconfig to rebuild with new queue count and update traffic
2568          * class queue mapping
2569          */
2570         new_count = i40e_reconfig_rss_queues(pf, count);
2571         if (new_count > 0)
2572                 return 0;
2573         else
2574                 return -EINVAL;
2575 }
2576
2577 #define I40E_HLUT_ARRAY_SIZE ((I40E_PFQF_HLUT_MAX_INDEX + 1) * 4)
2578 /**
2579  * i40e_get_rxfh_key_size - get the RSS hash key size
2580  * @netdev: network interface device structure
2581  *
2582  * Returns the table size.
2583  **/
2584 static u32 i40e_get_rxfh_key_size(struct net_device *netdev)
2585 {
2586         return I40E_HKEY_ARRAY_SIZE;
2587 }
2588
2589 /**
2590  * i40e_get_rxfh_indir_size - get the rx flow hash indirection table size
2591  * @netdev: network interface device structure
2592  *
2593  * Returns the table size.
2594  **/
2595 static u32 i40e_get_rxfh_indir_size(struct net_device *netdev)
2596 {
2597         return I40E_HLUT_ARRAY_SIZE;
2598 }
2599
2600 static int i40e_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key,
2601                          u8 *hfunc)
2602 {
2603         struct i40e_netdev_priv *np = netdev_priv(netdev);
2604         struct i40e_vsi *vsi = np->vsi;
2605         struct i40e_pf *pf = vsi->back;
2606         struct i40e_hw *hw = &pf->hw;
2607         u32 reg_val;
2608         int i, j;
2609
2610         if (hfunc)
2611                 *hfunc = ETH_RSS_HASH_TOP;
2612
2613         if (!indir)
2614                 return 0;
2615
2616         for (i = 0, j = 0; i <= I40E_PFQF_HLUT_MAX_INDEX; i++) {
2617                 reg_val = rd32(hw, I40E_PFQF_HLUT(i));
2618                 indir[j++] = reg_val & 0xff;
2619                 indir[j++] = (reg_val >> 8) & 0xff;
2620                 indir[j++] = (reg_val >> 16) & 0xff;
2621                 indir[j++] = (reg_val >> 24) & 0xff;
2622         }
2623
2624         if (key) {
2625                 for (i = 0, j = 0; i <= I40E_PFQF_HKEY_MAX_INDEX; i++) {
2626                         reg_val = rd32(hw, I40E_PFQF_HKEY(i));
2627                         key[j++] = (u8)(reg_val & 0xff);
2628                         key[j++] = (u8)((reg_val >> 8) & 0xff);
2629                         key[j++] = (u8)((reg_val >> 16) & 0xff);
2630                         key[j++] = (u8)((reg_val >> 24) & 0xff);
2631                 }
2632         }
2633         return 0;
2634 }
2635
2636 /**
2637  * i40e_set_rxfh - set the rx flow hash indirection table
2638  * @netdev: network interface device structure
2639  * @indir: indirection table
2640  * @key: hash key
2641  *
2642  * Returns -EINVAL if the table specifies an invalid queue id, otherwise
2643  * returns 0 after programming the table.
2644  **/
2645 static int i40e_set_rxfh(struct net_device *netdev, const u32 *indir,
2646                          const u8 *key, const u8 hfunc)
2647 {
2648         struct i40e_netdev_priv *np = netdev_priv(netdev);
2649         struct i40e_vsi *vsi = np->vsi;
2650         struct i40e_pf *pf = vsi->back;
2651         struct i40e_hw *hw = &pf->hw;
2652         u32 reg_val;
2653         int i, j;
2654
2655         if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)
2656                 return -EOPNOTSUPP;
2657
2658         if (!indir)
2659                 return 0;
2660
2661         for (i = 0, j = 0; i <= I40E_PFQF_HLUT_MAX_INDEX; i++) {
2662                 reg_val = indir[j++];
2663                 reg_val |= indir[j++] << 8;
2664                 reg_val |= indir[j++] << 16;
2665                 reg_val |= indir[j++] << 24;
2666                 wr32(hw, I40E_PFQF_HLUT(i), reg_val);
2667         }
2668
2669         if (key) {
2670                 for (i = 0, j = 0; i <= I40E_PFQF_HKEY_MAX_INDEX; i++) {
2671                         reg_val = key[j++];
2672                         reg_val |= key[j++] << 8;
2673                         reg_val |= key[j++] << 16;
2674                         reg_val |= key[j++] << 24;
2675                         wr32(hw, I40E_PFQF_HKEY(i), reg_val);
2676                 }
2677         }
2678         return 0;
2679 }
2680
2681 /**
2682  * i40e_get_priv_flags - report device private flags
2683  * @dev: network interface device structure
2684  *
2685  * The get string set count and the string set should be matched for each
2686  * flag returned.  Add new strings for each flag to the i40e_priv_flags_strings
2687  * array.
2688  *
2689  * Returns a u32 bitmap of flags.
2690  **/
2691 static u32 i40e_get_priv_flags(struct net_device *dev)
2692 {
2693         struct i40e_netdev_priv *np = netdev_priv(dev);
2694         struct i40e_vsi *vsi = np->vsi;
2695         struct i40e_pf *pf = vsi->back;
2696         u32 ret_flags = 0;
2697
2698         ret_flags |= pf->hw.func_caps.npar_enable ?
2699                 I40E_PRIV_FLAGS_NPAR_FLAG : 0;
2700         ret_flags |= pf->flags & I40E_FLAG_LINK_POLLING_ENABLED ?
2701                 I40E_PRIV_FLAGS_LINKPOLL_FLAG : 0;
2702         ret_flags |= pf->flags & I40E_FLAG_FD_ATR_ENABLED ?
2703                 I40E_PRIV_FLAGS_FD_ATR : 0;
2704         ret_flags |= pf->flags & I40E_FLAG_VEB_STATS_ENABLED ?
2705                 I40E_PRIV_FLAGS_VEB_STATS : 0;
2706
2707         return ret_flags;
2708 }
2709
2710 /**
2711  * i40e_set_priv_flags - set private flags
2712  * @dev: network interface device structure
2713  * @flags: bit flags to be set
2714  **/
2715 static int i40e_set_priv_flags(struct net_device *dev, u32 flags)
2716 {
2717         struct i40e_netdev_priv *np = netdev_priv(dev);
2718         struct i40e_vsi *vsi = np->vsi;
2719         struct i40e_pf *pf = vsi->back;
2720
2721         if (flags & I40E_PRIV_FLAGS_LINKPOLL_FLAG)
2722                 pf->flags |= I40E_FLAG_LINK_POLLING_ENABLED;
2723         else
2724                 pf->flags &= ~I40E_FLAG_LINK_POLLING_ENABLED;
2725
2726         /* allow the user to control the state of the Flow
2727          * Director ATR (Application Targeted Routing) feature
2728          * of the driver
2729          */
2730         if (flags & I40E_PRIV_FLAGS_FD_ATR) {
2731                 pf->flags |= I40E_FLAG_FD_ATR_ENABLED;
2732         } else {
2733                 pf->flags &= ~I40E_FLAG_FD_ATR_ENABLED;
2734                 pf->auto_disable_flags |= I40E_FLAG_FD_ATR_ENABLED;
2735         }
2736
2737         if (flags & I40E_PRIV_FLAGS_VEB_STATS)
2738                 pf->flags |= I40E_FLAG_VEB_STATS_ENABLED;
2739         else
2740                 pf->flags &= ~I40E_FLAG_VEB_STATS_ENABLED;
2741
2742         return 0;
2743 }
2744
2745 static const struct ethtool_ops i40e_ethtool_ops = {
2746         .get_settings           = i40e_get_settings,
2747         .set_settings           = i40e_set_settings,
2748         .get_drvinfo            = i40e_get_drvinfo,
2749         .get_regs_len           = i40e_get_regs_len,
2750         .get_regs               = i40e_get_regs,
2751         .nway_reset             = i40e_nway_reset,
2752         .get_link               = ethtool_op_get_link,
2753         .get_wol                = i40e_get_wol,
2754         .set_wol                = i40e_set_wol,
2755         .set_eeprom             = i40e_set_eeprom,
2756         .get_eeprom_len         = i40e_get_eeprom_len,
2757         .get_eeprom             = i40e_get_eeprom,
2758         .get_ringparam          = i40e_get_ringparam,
2759         .set_ringparam          = i40e_set_ringparam,
2760         .get_pauseparam         = i40e_get_pauseparam,
2761         .set_pauseparam         = i40e_set_pauseparam,
2762         .get_msglevel           = i40e_get_msglevel,
2763         .set_msglevel           = i40e_set_msglevel,
2764         .get_rxnfc              = i40e_get_rxnfc,
2765         .set_rxnfc              = i40e_set_rxnfc,
2766         .self_test              = i40e_diag_test,
2767         .get_strings            = i40e_get_strings,
2768         .set_phys_id            = i40e_set_phys_id,
2769         .get_sset_count         = i40e_get_sset_count,
2770         .get_ethtool_stats      = i40e_get_ethtool_stats,
2771         .get_coalesce           = i40e_get_coalesce,
2772         .set_coalesce           = i40e_set_coalesce,
2773         .get_rxfh_key_size      = i40e_get_rxfh_key_size,
2774         .get_rxfh_indir_size    = i40e_get_rxfh_indir_size,
2775         .get_rxfh               = i40e_get_rxfh,
2776         .set_rxfh               = i40e_set_rxfh,
2777         .get_channels           = i40e_get_channels,
2778         .set_channels           = i40e_set_channels,
2779         .get_ts_info            = i40e_get_ts_info,
2780         .get_priv_flags         = i40e_get_priv_flags,
2781         .set_priv_flags         = i40e_set_priv_flags,
2782 };
2783
2784 void i40e_set_ethtool_ops(struct net_device *netdev)
2785 {
2786         netdev->ethtool_ops = &i40e_ethtool_ops;
2787 }