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