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         I40E_VSI_STAT("tx_force_wb", tx_force_wb),
  92 };
  93
  94 /* These PF_STATs might look like duplicates of some NETDEV_STATs,
  95  * but they are separate.  This device supports Virtualization, and
  96  * as such might have several netdevs supporting VMDq and FCoE going
  97  * through a single port.  The NETDEV_STATs are for individual netdevs
  98  * seen at the top of the stack, and the PF_STATs are for the physical
  99  * function at the bottom of the stack hosting those netdevs.
 100  *
 101  * The PF_STATs are appended to the netdev stats only when ethtool -S
 102  * is queried on the base PF netdev, not on the VMDq or FCoE netdev.
 103  */
 104 static struct i40e_stats i40e_gstrings_stats[] = {
 105         I40E_PF_STAT("rx_bytes", stats.eth.rx_bytes),
 106         I40E_PF_STAT("tx_bytes", stats.eth.tx_bytes),
 107         I40E_PF_STAT("rx_unicast", stats.eth.rx_unicast),
 108         I40E_PF_STAT("tx_unicast", stats.eth.tx_unicast),
 109         I40E_PF_STAT("rx_multicast", stats.eth.rx_multicast),
 110         I40E_PF_STAT("tx_multicast", stats.eth.tx_multicast),
 111         I40E_PF_STAT("rx_broadcast", stats.eth.rx_broadcast),
 112         I40E_PF_STAT("tx_broadcast", stats.eth.tx_broadcast),
 113         I40E_PF_STAT("tx_errors", stats.eth.tx_errors),
 114         I40E_PF_STAT("rx_dropped", stats.eth.rx_discards),
 115         I40E_PF_STAT("tx_dropped_link_down", stats.tx_dropped_link_down),
 116         I40E_PF_STAT("rx_crc_errors", stats.crc_errors),
 117         I40E_PF_STAT("illegal_bytes", stats.illegal_bytes),
 118         I40E_PF_STAT("mac_local_faults", stats.mac_local_faults),
 119         I40E_PF_STAT("mac_remote_faults", stats.mac_remote_faults),
 120         I40E_PF_STAT("tx_timeout", tx_timeout_count),
 121         I40E_PF_STAT("rx_csum_bad", hw_csum_rx_error),
 122         I40E_PF_STAT("rx_length_errors", stats.rx_length_errors),
 123         I40E_PF_STAT("link_xon_rx", stats.link_xon_rx),
 124         I40E_PF_STAT("link_xoff_rx", stats.link_xoff_rx),
 125         I40E_PF_STAT("link_xon_tx", stats.link_xon_tx),
 126         I40E_PF_STAT("link_xoff_tx", stats.link_xoff_tx),
 127         I40E_PF_STAT("rx_size_64", stats.rx_size_64),
 128         I40E_PF_STAT("rx_size_127", stats.rx_size_127),
 129         I40E_PF_STAT("rx_size_255", stats.rx_size_255),
 130         I40E_PF_STAT("rx_size_511", stats.rx_size_511),
 131         I40E_PF_STAT("rx_size_1023", stats.rx_size_1023),
 132         I40E_PF_STAT("rx_size_1522", stats.rx_size_1522),
 133         I40E_PF_STAT("rx_size_big", stats.rx_size_big),
 134         I40E_PF_STAT("tx_size_64", stats.tx_size_64),
 135         I40E_PF_STAT("tx_size_127", stats.tx_size_127),
 136         I40E_PF_STAT("tx_size_255", stats.tx_size_255),
 137         I40E_PF_STAT("tx_size_511", stats.tx_size_511),
 138         I40E_PF_STAT("tx_size_1023", stats.tx_size_1023),
 139         I40E_PF_STAT("tx_size_1522", stats.tx_size_1522),
 140         I40E_PF_STAT("tx_size_big", stats.tx_size_big),
 141         I40E_PF_STAT("rx_undersize", stats.rx_undersize),
 142         I40E_PF_STAT("rx_fragments", stats.rx_fragments),
 143         I40E_PF_STAT("rx_oversize", stats.rx_oversize),
 144         I40E_PF_STAT("rx_jabber", stats.rx_jabber),
 145         I40E_PF_STAT("VF_admin_queue_requests", vf_aq_requests),
 146         I40E_PF_STAT("rx_hwtstamp_cleared", rx_hwtstamp_cleared),
 147         I40E_PF_STAT("fdir_flush_cnt", fd_flush_cnt),
 148         I40E_PF_STAT("fdir_atr_match", stats.fd_atr_match),
 149         I40E_PF_STAT("fdir_atr_tunnel_match", stats.fd_atr_tunnel_match),
 150         I40E_PF_STAT("fdir_atr_status", stats.fd_atr_status),
 151         I40E_PF_STAT("fdir_sb_match", stats.fd_sb_match),
 152         I40E_PF_STAT("fdir_sb_status", stats.fd_sb_status),
 153
 154         /* LPI stats */
 155         I40E_PF_STAT("tx_lpi_status", stats.tx_lpi_status),
 156         I40E_PF_STAT("rx_lpi_status", stats.rx_lpi_status),
 157         I40E_PF_STAT("tx_lpi_count", stats.tx_lpi_count),
 158         I40E_PF_STAT("rx_lpi_count", stats.rx_lpi_count),
 159 };
 160
 161 #ifdef I40E_FCOE
 162 static const struct i40e_stats i40e_gstrings_fcoe_stats[] = {
 163         I40E_VSI_STAT("fcoe_bad_fccrc", fcoe_stats.fcoe_bad_fccrc),
 164         I40E_VSI_STAT("rx_fcoe_dropped", fcoe_stats.rx_fcoe_dropped),
 165         I40E_VSI_STAT("rx_fcoe_packets", fcoe_stats.rx_fcoe_packets),
 166         I40E_VSI_STAT("rx_fcoe_dwords", fcoe_stats.rx_fcoe_dwords),
 167         I40E_VSI_STAT("fcoe_ddp_count", fcoe_stats.fcoe_ddp_count),
 168         I40E_VSI_STAT("fcoe_last_error", fcoe_stats.fcoe_last_error),
 169         I40E_VSI_STAT("tx_fcoe_packets", fcoe_stats.tx_fcoe_packets),
 170         I40E_VSI_STAT("tx_fcoe_dwords", fcoe_stats.tx_fcoe_dwords),
 171 };
 172
 173 #endif /* I40E_FCOE */
 174 #define I40E_QUEUE_STATS_LEN(n) \
 175         (((struct i40e_netdev_priv *)netdev_priv((n)))->vsi->num_queue_pairs \
 176             * 2 /* Tx and Rx together */                                     \
 177             * (sizeof(struct i40e_queue_stats) / sizeof(u64)))
 178 #define I40E_GLOBAL_STATS_LEN   ARRAY_SIZE(i40e_gstrings_stats)
 179 #define I40E_NETDEV_STATS_LEN   ARRAY_SIZE(i40e_gstrings_net_stats)
 180 #define I40E_MISC_STATS_LEN     ARRAY_SIZE(i40e_gstrings_misc_stats)
 181 #ifdef I40E_FCOE
 182 #define I40E_FCOE_STATS_LEN     ARRAY_SIZE(i40e_gstrings_fcoe_stats)
 183 #define I40E_VSI_STATS_LEN(n)   (I40E_NETDEV_STATS_LEN + \
 184                                  I40E_FCOE_STATS_LEN + \
 185                                  I40E_MISC_STATS_LEN + \
 186                                  I40E_QUEUE_STATS_LEN((n)))
 187 #else
 188 #define I40E_VSI_STATS_LEN(n)   (I40E_NETDEV_STATS_LEN + \
 189                                  I40E_MISC_STATS_LEN + \
 190                                  I40E_QUEUE_STATS_LEN((n)))
 191 #endif /* I40E_FCOE */
 192 #define I40E_PFC_STATS_LEN ( \
 193                 (FIELD_SIZEOF(struct i40e_pf, stats.priority_xoff_rx) + \
 194                  FIELD_SIZEOF(struct i40e_pf, stats.priority_xon_rx) + \
 195                  FIELD_SIZEOF(struct i40e_pf, stats.priority_xoff_tx) + \
 196                  FIELD_SIZEOF(struct i40e_pf, stats.priority_xon_tx) + \
 197                  FIELD_SIZEOF(struct i40e_pf, stats.priority_xon_2_xoff)) \
 198                  / sizeof(u64))
 199 #define I40E_VEB_TC_STATS_LEN ( \
 200                 (FIELD_SIZEOF(struct i40e_veb, tc_stats.tc_rx_packets) + \
 201                  FIELD_SIZEOF(struct i40e_veb, tc_stats.tc_rx_bytes) + \
 202                  FIELD_SIZEOF(struct i40e_veb, tc_stats.tc_tx_packets) + \
 203                  FIELD_SIZEOF(struct i40e_veb, tc_stats.tc_tx_bytes)) \
 204                  / sizeof(u64))
 205 #define I40E_VEB_STATS_LEN      ARRAY_SIZE(i40e_gstrings_veb_stats)
 206 #define I40E_VEB_STATS_TOTAL    (I40E_VEB_STATS_LEN + I40E_VEB_TC_STATS_LEN)
 207 #define I40E_PF_STATS_LEN(n)    (I40E_GLOBAL_STATS_LEN + \
 208                                  I40E_PFC_STATS_LEN + \
 209                                  I40E_VSI_STATS_LEN((n)))
 210
 211 enum i40e_ethtool_test_id {
 212         I40E_ETH_TEST_REG = 0,
 213         I40E_ETH_TEST_EEPROM,
 214         I40E_ETH_TEST_INTR,
 215         I40E_ETH_TEST_LOOPBACK,
 216         I40E_ETH_TEST_LINK,
 217 };
 218
 219 static const char i40e_gstrings_test[][ETH_GSTRING_LEN] = {
 220         "Register test  (offline)",
 221         "Eeprom test    (offline)",
 222         "Interrupt test (offline)",
 223         "Loopback test  (offline)",
 224         "Link test   (on/offline)"
 225 };
 226
 227 #define I40E_TEST_LEN (sizeof(i40e_gstrings_test) / ETH_GSTRING_LEN)
 228
 229 static const char i40e_priv_flags_strings[][ETH_GSTRING_LEN] = {
 230         "NPAR",
 231         "LinkPolling",
 232         "flow-director-atr",
 233         "veb-stats",
 234         "packet-split",
 235 };
 236
 237 #define I40E_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_priv_flags_strings)
 238
 239 /**
 240  * i40e_partition_setting_complaint - generic complaint for MFP restriction
 241  * @pf: the PF struct
 242  **/
 243 static void i40e_partition_setting_complaint(struct i40e_pf *pf)
 244 {
 245         dev_info(&pf->pdev->dev,
 246                  "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");
 247 }
 248
 249 /**
 250  * i40e_get_settings_link_up - Get the Link settings for when link is up
 251  * @hw: hw structure
 252  * @ecmd: ethtool command to fill in
 253  * @netdev: network interface device structure
 254  *
 255  **/
 256 static void i40e_get_settings_link_up(struct i40e_hw *hw,
 257                                       struct ethtool_cmd *ecmd,
 258                                       struct net_device *netdev,
 259                                       struct i40e_pf *pf)
 260 {
 261         struct i40e_link_status *hw_link_info = &hw->phy.link_info;
 262         u32 link_speed = hw_link_info->link_speed;
 263
 264         /* Initialize supported and advertised settings based on phy settings */
 265         switch (hw_link_info->phy_type) {
 266         case I40E_PHY_TYPE_40GBASE_CR4:
 267         case I40E_PHY_TYPE_40GBASE_CR4_CU:
 268                 ecmd->supported = SUPPORTED_Autoneg |
 269                                   SUPPORTED_40000baseCR4_Full;
 270                 ecmd->advertising = ADVERTISED_Autoneg |
 271                                     ADVERTISED_40000baseCR4_Full;
 272                 break;
 273         case I40E_PHY_TYPE_XLAUI:
 274         case I40E_PHY_TYPE_XLPPI:
 275         case I40E_PHY_TYPE_40GBASE_AOC:
 276                 ecmd->supported = SUPPORTED_40000baseCR4_Full;
 277                 break;
 278         case I40E_PHY_TYPE_40GBASE_SR4:
 279                 ecmd->supported = SUPPORTED_40000baseSR4_Full;
 280                 break;
 281         case I40E_PHY_TYPE_40GBASE_LR4:
 282                 ecmd->supported = SUPPORTED_40000baseLR4_Full;
 283                 break;
 284         case I40E_PHY_TYPE_10GBASE_SR:
 285         case I40E_PHY_TYPE_10GBASE_LR:
 286         case I40E_PHY_TYPE_1000BASE_SX:
 287         case I40E_PHY_TYPE_1000BASE_LX:
 288                 ecmd->supported = SUPPORTED_10000baseT_Full;
 289                 if (hw_link_info->module_type[2] &
 290                     I40E_MODULE_TYPE_1000BASE_SX ||
 291                     hw_link_info->module_type[2] &
 292                     I40E_MODULE_TYPE_1000BASE_LX) {
 293                         ecmd->supported |= SUPPORTED_1000baseT_Full;
 294                         if (hw_link_info->requested_speeds &
 295                             I40E_LINK_SPEED_1GB)
 296                                 ecmd->advertising |= ADVERTISED_1000baseT_Full;
 297                 }
 298                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 299                         ecmd->advertising |= ADVERTISED_10000baseT_Full;
 300                 break;
 301         case I40E_PHY_TYPE_10GBASE_T:
 302         case I40E_PHY_TYPE_1000BASE_T:
 303                 ecmd->supported = SUPPORTED_Autoneg |
 304                                   SUPPORTED_10000baseT_Full |
 305                                   SUPPORTED_1000baseT_Full;
 306                 ecmd->advertising = ADVERTISED_Autoneg;
 307                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 308                         ecmd->advertising |= ADVERTISED_10000baseT_Full;
 309                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 310                         ecmd->advertising |= ADVERTISED_1000baseT_Full;
 311                 break;
 312         case I40E_PHY_TYPE_1000BASE_T_OPTICAL:
 313                 ecmd->supported = SUPPORTED_Autoneg |
 314                                   SUPPORTED_1000baseT_Full;
 315                 ecmd->advertising = ADVERTISED_Autoneg |
 316                                     ADVERTISED_1000baseT_Full;
 317                 break;
 318         case I40E_PHY_TYPE_100BASE_TX:
 319                 ecmd->supported = SUPPORTED_Autoneg |
 320                                   SUPPORTED_100baseT_Full;
 321                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB)
 322                         ecmd->advertising |= ADVERTISED_100baseT_Full;
 323                 break;
 324         case I40E_PHY_TYPE_10GBASE_CR1_CU:
 325         case I40E_PHY_TYPE_10GBASE_CR1:
 326                 ecmd->supported = SUPPORTED_Autoneg |
 327                                   SUPPORTED_10000baseT_Full;
 328                 ecmd->advertising = ADVERTISED_Autoneg |
 329                                     ADVERTISED_10000baseT_Full;
 330                 break;
 331         case I40E_PHY_TYPE_XAUI:
 332         case I40E_PHY_TYPE_XFI:
 333         case I40E_PHY_TYPE_SFI:
 334         case I40E_PHY_TYPE_10GBASE_SFPP_CU:
 335         case I40E_PHY_TYPE_10GBASE_AOC:
 336                 ecmd->supported = SUPPORTED_10000baseT_Full;
 337                 break;
 338         case I40E_PHY_TYPE_SGMII:
 339                 ecmd->supported = SUPPORTED_Autoneg |
 340                                   SUPPORTED_1000baseT_Full;
 341                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 342                         ecmd->advertising |= ADVERTISED_1000baseT_Full;
 343                 if (pf->flags & I40E_FLAG_100M_SGMII_CAPABLE) {
 344                         ecmd->supported |= SUPPORTED_100baseT_Full;
 345                         if (hw_link_info->requested_speeds &
 346                             I40E_LINK_SPEED_100MB)
 347                                 ecmd->advertising |= ADVERTISED_100baseT_Full;
 348                 }
 349                 break;
 350         /* Backplane is set based on supported phy types in get_settings
 351          * so don't set anything here but don't warn either
 352          */
 353         case I40E_PHY_TYPE_40GBASE_KR4:
 354         case I40E_PHY_TYPE_20GBASE_KR2:
 355         case I40E_PHY_TYPE_10GBASE_KR:
 356         case I40E_PHY_TYPE_10GBASE_KX4:
 357         case I40E_PHY_TYPE_1000BASE_KX:
 358                 break;
 359         default:
 360                 /* if we got here and link is up something bad is afoot */
 361                 netdev_info(netdev, "WARNING: Link is up but PHY type 0x%x is not recognized.\n",
 362                             hw_link_info->phy_type);
 363         }
 364
 365         /* Set speed and duplex */
 366         switch (link_speed) {
 367         case I40E_LINK_SPEED_40GB:
 368                 ethtool_cmd_speed_set(ecmd, SPEED_40000);
 369                 break;
 370         case I40E_LINK_SPEED_20GB:
 371                 ethtool_cmd_speed_set(ecmd, SPEED_20000);
 372                 break;
 373         case I40E_LINK_SPEED_10GB:
 374                 ethtool_cmd_speed_set(ecmd, SPEED_10000);
 375                 break;
 376         case I40E_LINK_SPEED_1GB:
 377                 ethtool_cmd_speed_set(ecmd, SPEED_1000);
 378                 break;
 379         case I40E_LINK_SPEED_100MB:
 380                 ethtool_cmd_speed_set(ecmd, SPEED_100);
 381                 break;
 382         default:
 383                 break;
 384         }
 385         ecmd->duplex = DUPLEX_FULL;
 386 }
 387
 388 /**
 389  * i40e_get_settings_link_down - Get the Link settings for when link is down
 390  * @hw: hw structure
 391  * @ecmd: ethtool command to fill in
 392  *
 393  * Reports link settings that can be determined when link is down
 394  **/
 395 static void i40e_get_settings_link_down(struct i40e_hw *hw,
 396                                         struct ethtool_cmd *ecmd,
 397                                         struct i40e_pf *pf)
 398 {
 399         enum i40e_aq_capabilities_phy_type phy_types = hw->phy.phy_types;
 400
 401         /* link is down and the driver needs to fall back on
 402          * supported phy types to figure out what info to display
 403          */
 404         ecmd->supported = 0x0;
 405         ecmd->advertising = 0x0;
 406         if (phy_types & I40E_CAP_PHY_TYPE_SGMII) {
 407                 ecmd->supported |= SUPPORTED_Autoneg |
 408                                    SUPPORTED_1000baseT_Full;
 409                 ecmd->advertising |= ADVERTISED_Autoneg |
 410                                      ADVERTISED_1000baseT_Full;
 411                 if (pf->hw.mac.type == I40E_MAC_X722) {
 412                         ecmd->supported |= SUPPORTED_100baseT_Full;
 413                         ecmd->advertising |= ADVERTISED_100baseT_Full;
 414                         if (pf->flags & I40E_FLAG_100M_SGMII_CAPABLE) {
 415                                 ecmd->supported |= SUPPORTED_100baseT_Full;
 416                                 ecmd->advertising |= ADVERTISED_100baseT_Full;
 417                         }
 418                 }
 419         }
 420         if (phy_types & I40E_CAP_PHY_TYPE_XAUI ||
 421             phy_types & I40E_CAP_PHY_TYPE_XFI ||
 422             phy_types & I40E_CAP_PHY_TYPE_SFI ||
 423             phy_types & I40E_CAP_PHY_TYPE_10GBASE_SFPP_CU ||
 424             phy_types & I40E_CAP_PHY_TYPE_10GBASE_AOC)
 425                 ecmd->supported |= SUPPORTED_10000baseT_Full;
 426         if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1_CU ||
 427             phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1 ||
 428             phy_types & I40E_CAP_PHY_TYPE_10GBASE_T ||
 429             phy_types & I40E_CAP_PHY_TYPE_10GBASE_SR ||
 430             phy_types & I40E_CAP_PHY_TYPE_10GBASE_LR) {
 431                 ecmd->supported |= SUPPORTED_Autoneg |
 432                                    SUPPORTED_10000baseT_Full;
 433                 ecmd->advertising |= ADVERTISED_Autoneg |
 434                                      ADVERTISED_10000baseT_Full;
 435         }
 436         if (phy_types & I40E_CAP_PHY_TYPE_XLAUI ||
 437             phy_types & I40E_CAP_PHY_TYPE_XLPPI ||
 438             phy_types & I40E_CAP_PHY_TYPE_40GBASE_AOC)
 439                 ecmd->supported |= SUPPORTED_40000baseCR4_Full;
 440         if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4_CU ||
 441             phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4) {
 442                 ecmd->supported |= SUPPORTED_Autoneg |
 443                                   SUPPORTED_40000baseCR4_Full;
 444                 ecmd->advertising |= ADVERTISED_Autoneg |
 445                                     ADVERTISED_40000baseCR4_Full;
 446         }
 447         if ((phy_types & I40E_CAP_PHY_TYPE_100BASE_TX) &&
 448             !(phy_types & I40E_CAP_PHY_TYPE_1000BASE_T)) {
 449                 ecmd->supported |= SUPPORTED_Autoneg |
 450                                    SUPPORTED_100baseT_Full;
 451                 ecmd->advertising |= ADVERTISED_Autoneg |
 452                                      ADVERTISED_100baseT_Full;
 453         }
 454         if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_T ||
 455             phy_types & I40E_CAP_PHY_TYPE_1000BASE_SX ||
 456             phy_types & I40E_CAP_PHY_TYPE_1000BASE_LX ||
 457             phy_types & I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL) {
 458                 ecmd->supported |= SUPPORTED_Autoneg |
 459                                    SUPPORTED_1000baseT_Full;
 460                 ecmd->advertising |= ADVERTISED_Autoneg |
 461                                      ADVERTISED_1000baseT_Full;
 462         }
 463         if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_SR4)
 464                 ecmd->supported |= SUPPORTED_40000baseSR4_Full;
 465         if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_LR4)
 466                 ecmd->supported |= SUPPORTED_40000baseLR4_Full;
 467
 468         /* With no link speed and duplex are unknown */
 469         ethtool_cmd_speed_set(ecmd, SPEED_UNKNOWN);
 470         ecmd->duplex = DUPLEX_UNKNOWN;
 471 }
 472
 473 /**
 474  * i40e_get_settings - Get Link Speed and Duplex settings
 475  * @netdev: network interface device structure
 476  * @ecmd: ethtool command
 477  *
 478  * Reports speed/duplex settings based on media_type
 479  **/
 480 static int i40e_get_settings(struct net_device *netdev,
 481                              struct ethtool_cmd *ecmd)
 482 {
 483         struct i40e_netdev_priv *np = netdev_priv(netdev);
 484         struct i40e_pf *pf = np->vsi->back;
 485         struct i40e_hw *hw = &pf->hw;
 486         struct i40e_link_status *hw_link_info = &hw->phy.link_info;
 487         bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP;
 488
 489         if (link_up)
 490                 i40e_get_settings_link_up(hw, ecmd, netdev, pf);
 491         else
 492                 i40e_get_settings_link_down(hw, ecmd, pf);
 493
 494         /* Now set the settings that don't rely on link being up/down */
 495
 496         /* For backplane, supported and advertised are only reliant on the
 497          * phy types the NVM specifies are supported.
 498          */
 499         if (hw->device_id == I40E_DEV_ID_KX_B ||
 500             hw->device_id == I40E_DEV_ID_KX_C ||
 501             hw->device_id == I40E_DEV_ID_20G_KR2 ||
 502             hw->device_id ==  I40E_DEV_ID_20G_KR2_A) {
 503                 ecmd->supported = SUPPORTED_Autoneg;
 504                 ecmd->advertising = ADVERTISED_Autoneg;
 505                 if (hw->phy.phy_types & I40E_CAP_PHY_TYPE_40GBASE_KR4) {
 506                         ecmd->supported |= SUPPORTED_40000baseKR4_Full;
 507                         ecmd->advertising |= ADVERTISED_40000baseKR4_Full;
 508                 }
 509                 if (hw->phy.phy_types & I40E_CAP_PHY_TYPE_20GBASE_KR2) {
 510                         ecmd->supported |= SUPPORTED_20000baseKR2_Full;
 511                         ecmd->advertising |= ADVERTISED_20000baseKR2_Full;
 512                 }
 513                 if (hw->phy.phy_types & I40E_CAP_PHY_TYPE_10GBASE_KR) {
 514                         ecmd->supported |= SUPPORTED_10000baseKR_Full;
 515                         ecmd->advertising |= ADVERTISED_10000baseKR_Full;
 516                 }
 517                 if (hw->phy.phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4) {
 518                         ecmd->supported |= SUPPORTED_10000baseKX4_Full;
 519                         ecmd->advertising |= ADVERTISED_10000baseKX4_Full;
 520                 }
 521                 if (hw->phy.phy_types & I40E_CAP_PHY_TYPE_1000BASE_KX) {
 522                         ecmd->supported |= SUPPORTED_1000baseKX_Full;
 523                         ecmd->advertising |= ADVERTISED_1000baseKX_Full;
 524                 }
 525         }
 526
 527         /* Set autoneg settings */
 528         ecmd->autoneg = ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
 529                           AUTONEG_ENABLE : AUTONEG_DISABLE);
 530
 531         switch (hw->phy.media_type) {
 532         case I40E_MEDIA_TYPE_BACKPLANE:
 533                 ecmd->supported |= SUPPORTED_Autoneg |
 534                                    SUPPORTED_Backplane;
 535                 ecmd->advertising |= ADVERTISED_Autoneg |
 536                                      ADVERTISED_Backplane;
 537                 ecmd->port = PORT_NONE;
 538                 break;
 539         case I40E_MEDIA_TYPE_BASET:
 540                 ecmd->supported |= SUPPORTED_TP;
 541                 ecmd->advertising |= ADVERTISED_TP;
 542                 ecmd->port = PORT_TP;
 543                 break;
 544         case I40E_MEDIA_TYPE_DA:
 545         case I40E_MEDIA_TYPE_CX4:
 546                 ecmd->supported |= SUPPORTED_FIBRE;
 547                 ecmd->advertising |= ADVERTISED_FIBRE;
 548                 ecmd->port = PORT_DA;
 549                 break;
 550         case I40E_MEDIA_TYPE_FIBER:
 551                 ecmd->supported |= SUPPORTED_FIBRE;
 552                 ecmd->port = PORT_FIBRE;
 553                 break;
 554         case I40E_MEDIA_TYPE_UNKNOWN:
 555         default:
 556                 ecmd->port = PORT_OTHER;
 557                 break;
 558         }
 559
 560         /* Set transceiver */
 561         ecmd->transceiver = XCVR_EXTERNAL;
 562
 563         /* Set flow control settings */
 564         ecmd->supported |= SUPPORTED_Pause;
 565
 566         switch (hw->fc.requested_mode) {
 567         case I40E_FC_FULL:
 568                 ecmd->advertising |= ADVERTISED_Pause;
 569                 break;
 570         case I40E_FC_TX_PAUSE:
 571                 ecmd->advertising |= ADVERTISED_Asym_Pause;
 572                 break;
 573         case I40E_FC_RX_PAUSE:
 574                 ecmd->advertising |= (ADVERTISED_Pause |
 575                                       ADVERTISED_Asym_Pause);
 576                 break;
 577         default:
 578                 ecmd->advertising &= ~(ADVERTISED_Pause |
 579                                        ADVERTISED_Asym_Pause);
 580                 break;
 581         }
 582
 583         return 0;
 584 }
 585
 586 /**
 587  * i40e_set_settings - Set Speed and Duplex
 588  * @netdev: network interface device structure
 589  * @ecmd: ethtool command
 590  *
 591  * Set speed/duplex per media_types advertised/forced
 592  **/
 593 static int i40e_set_settings(struct net_device *netdev,
 594                              struct ethtool_cmd *ecmd)
 595 {
 596         struct i40e_netdev_priv *np = netdev_priv(netdev);
 597         struct i40e_aq_get_phy_abilities_resp abilities;
 598         struct i40e_aq_set_phy_config config;
 599         struct i40e_pf *pf = np->vsi->back;
 600         struct i40e_vsi *vsi = np->vsi;
 601         struct i40e_hw *hw = &pf->hw;
 602         struct ethtool_cmd safe_ecmd;
 603         i40e_status status = 0;
 604         bool change = false;
 605         int err = 0;
 606         u8 autoneg;
 607         u32 advertise;
 608
 609         /* Changing port settings is not supported if this isn't the
 610          * port's controlling PF
 611          */
 612         if (hw->partition_id != 1) {
 613                 i40e_partition_setting_complaint(pf);
 614                 return -EOPNOTSUPP;
 615         }
 616
 617         if (vsi != pf->vsi[pf->lan_vsi])
 618                 return -EOPNOTSUPP;
 619
 620         if (hw->phy.media_type != I40E_MEDIA_TYPE_BASET &&
 621             hw->phy.media_type != I40E_MEDIA_TYPE_FIBER &&
 622             hw->phy.media_type != I40E_MEDIA_TYPE_BACKPLANE &&
 623             hw->phy.link_info.link_info & I40E_AQ_LINK_UP)
 624                 return -EOPNOTSUPP;
 625
 626         if (hw->device_id == I40E_DEV_ID_KX_B ||
 627             hw->device_id == I40E_DEV_ID_KX_C ||
 628             hw->device_id == I40E_DEV_ID_20G_KR2 ||
 629             hw->device_id == I40E_DEV_ID_20G_KR2_A) {
 630                 netdev_info(netdev, "Changing settings is not supported on backplane.\n");
 631                 return -EOPNOTSUPP;
 632         }
 633
 634         /* get our own copy of the bits to check against */
 635         memset(&safe_ecmd, 0, sizeof(struct ethtool_cmd));
 636         i40e_get_settings(netdev, &safe_ecmd);
 637
 638         /* save autoneg and speed out of ecmd */
 639         autoneg = ecmd->autoneg;
 640         advertise = ecmd->advertising;
 641
 642         /* set autoneg and speed back to what they currently are */
 643         ecmd->autoneg = safe_ecmd.autoneg;
 644         ecmd->advertising = safe_ecmd.advertising;
 645
 646         ecmd->cmd = safe_ecmd.cmd;
 647         /* If ecmd and safe_ecmd are not the same now, then they are
 648          * trying to set something that we do not support
 649          */
 650         if (memcmp(ecmd, &safe_ecmd, sizeof(struct ethtool_cmd)))
 651                 return -EOPNOTSUPP;
 652
 653         while (test_bit(__I40E_CONFIG_BUSY, &vsi->state))
 654                 usleep_range(1000, 2000);
 655
 656         /* Get the current phy config */
 657         status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities,
 658                                               NULL);
 659         if (status)
 660                 return -EAGAIN;
 661
 662         /* Copy abilities to config in case autoneg is not
 663          * set below
 664          */
 665         memset(&config, 0, sizeof(struct i40e_aq_set_phy_config));
 666         config.abilities = abilities.abilities;
 667
 668         /* Check autoneg */
 669         if (autoneg == AUTONEG_ENABLE) {
 670                 /* If autoneg was not already enabled */
 671                 if (!(hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED)) {
 672                         /* If autoneg is not supported, return error */
 673                         if (!(safe_ecmd.supported & SUPPORTED_Autoneg)) {
 674                                 netdev_info(netdev, "Autoneg not supported on this phy\n");
 675                                 return -EINVAL;
 676                         }
 677                         /* Autoneg is allowed to change */
 678                         config.abilities = abilities.abilities |
 679                                            I40E_AQ_PHY_ENABLE_AN;
 680                         change = true;
 681                 }
 682         } else {
 683                 /* If autoneg is currently enabled */
 684                 if (hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED) {
 685                         /* If autoneg is supported 10GBASE_T is the only PHY
 686                          * that can disable it, so otherwise return error
 687                          */
 688                         if (safe_ecmd.supported & SUPPORTED_Autoneg &&
 689                             hw->phy.link_info.phy_type !=
 690                             I40E_PHY_TYPE_10GBASE_T) {
 691                                 netdev_info(netdev, "Autoneg cannot be disabled on this phy\n");
 692                                 return -EINVAL;
 693                         }
 694                         /* Autoneg is allowed to change */
 695                         config.abilities = abilities.abilities &
 696                                            ~I40E_AQ_PHY_ENABLE_AN;
 697                         change = true;
 698                 }
 699         }
 700
 701         if (advertise & ~safe_ecmd.supported)
 702                 return -EINVAL;
 703
 704         if (advertise & ADVERTISED_100baseT_Full)
 705                 config.link_speed |= I40E_LINK_SPEED_100MB;
 706         if (advertise & ADVERTISED_1000baseT_Full ||
 707             advertise & ADVERTISED_1000baseKX_Full)
 708                 config.link_speed |= I40E_LINK_SPEED_1GB;
 709         if (advertise & ADVERTISED_10000baseT_Full ||
 710             advertise & ADVERTISED_10000baseKX4_Full ||
 711             advertise & ADVERTISED_10000baseKR_Full)
 712                 config.link_speed |= I40E_LINK_SPEED_10GB;
 713         if (advertise & ADVERTISED_20000baseKR2_Full)
 714                 config.link_speed |= I40E_LINK_SPEED_20GB;
 715         if (advertise & ADVERTISED_40000baseKR4_Full ||
 716             advertise & ADVERTISED_40000baseCR4_Full ||
 717             advertise & ADVERTISED_40000baseSR4_Full ||
 718             advertise & ADVERTISED_40000baseLR4_Full)
 719                 config.link_speed |= I40E_LINK_SPEED_40GB;
 720
 721         /* If speed didn't get set, set it to what it currently is.
 722          * This is needed because if advertise is 0 (as it is when autoneg
 723          * is disabled) then speed won't get set.
 724          */
 725         if (!config.link_speed)
 726                 config.link_speed = abilities.link_speed;
 727
 728         if (change || (abilities.link_speed != config.link_speed)) {
 729                 /* copy over the rest of the abilities */
 730                 config.phy_type = abilities.phy_type;
 731                 config.eee_capability = abilities.eee_capability;
 732                 config.eeer = abilities.eeer_val;
 733                 config.low_power_ctrl = abilities.d3_lpan;
 734
 735                 /* save the requested speeds */
 736                 hw->phy.link_info.requested_speeds = config.link_speed;
 737                 /* set link and auto negotiation so changes take effect */
 738                 config.abilities |= I40E_AQ_PHY_ENABLE_ATOMIC_LINK;
 739                 /* If link is up put link down */
 740                 if (hw->phy.link_info.link_info & I40E_AQ_LINK_UP) {
 741                         /* Tell the OS link is going down, the link will go
 742                          * back up when fw says it is ready asynchronously
 743                          */
 744                         i40e_print_link_message(vsi, false);
 745                         netif_carrier_off(netdev);
 746                         netif_tx_stop_all_queues(netdev);
 747                 }
 748
 749                 /* make the aq call */
 750                 status = i40e_aq_set_phy_config(hw, &config, NULL);
 751                 if (status) {
 752                         netdev_info(netdev, "Set phy config failed, err %s aq_err %s\n",
 753                                     i40e_stat_str(hw, status),
 754                                     i40e_aq_str(hw, hw->aq.asq_last_status));
 755                         return -EAGAIN;
 756                 }
 757
 758                 status = i40e_update_link_info(hw);
 759                 if (status)
 760                         netdev_dbg(netdev, "Updating link info failed with err %s aq_err %s\n",
 761                                    i40e_stat_str(hw, status),
 762                                    i40e_aq_str(hw, hw->aq.asq_last_status));
 763
 764         } else {
 765                 netdev_info(netdev, "Nothing changed, exiting without setting anything.\n");
 766         }
 767
 768         return err;
 769 }
 770
 771 static int i40e_nway_reset(struct net_device *netdev)
 772 {
 773         /* restart autonegotiation */
 774         struct i40e_netdev_priv *np = netdev_priv(netdev);
 775         struct i40e_pf *pf = np->vsi->back;
 776         struct i40e_hw *hw = &pf->hw;
 777         bool link_up = hw->phy.link_info.link_info & I40E_AQ_LINK_UP;
 778         i40e_status ret = 0;
 779
 780         ret = i40e_aq_set_link_restart_an(hw, link_up, NULL);
 781         if (ret) {
 782                 netdev_info(netdev, "link restart failed, err %s aq_err %s\n",
 783                             i40e_stat_str(hw, ret),
 784                             i40e_aq_str(hw, hw->aq.asq_last_status));
 785                 return -EIO;
 786         }
 787
 788         return 0;
 789 }
 790
 791 /**
 792  * i40e_get_pauseparam -  Get Flow Control status
 793  * Return tx/rx-pause status
 794  **/
 795 static void i40e_get_pauseparam(struct net_device *netdev,
 796                                 struct ethtool_pauseparam *pause)
 797 {
 798         struct i40e_netdev_priv *np = netdev_priv(netdev);
 799         struct i40e_pf *pf = np->vsi->back;
 800         struct i40e_hw *hw = &pf->hw;
 801         struct i40e_link_status *hw_link_info = &hw->phy.link_info;
 802         struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config;
 803
 804         pause->autoneg =
 805                 ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
 806                   AUTONEG_ENABLE : AUTONEG_DISABLE);
 807
 808         /* PFC enabled so report LFC as off */
 809         if (dcbx_cfg->pfc.pfcenable) {
 810                 pause->rx_pause = 0;
 811                 pause->tx_pause = 0;
 812                 return;
 813         }
 814
 815         if (hw->fc.current_mode == I40E_FC_RX_PAUSE) {
 816                 pause->rx_pause = 1;
 817         } else if (hw->fc.current_mode == I40E_FC_TX_PAUSE) {
 818                 pause->tx_pause = 1;
 819         } else if (hw->fc.current_mode == I40E_FC_FULL) {
 820                 pause->rx_pause = 1;
 821                 pause->tx_pause = 1;
 822         }
 823 }
 824
 825 /**
 826  * i40e_set_pauseparam - Set Flow Control parameter
 827  * @netdev: network interface device structure
 828  * @pause: return tx/rx flow control status
 829  **/
 830 static int i40e_set_pauseparam(struct net_device *netdev,
 831                                struct ethtool_pauseparam *pause)
 832 {
 833         struct i40e_netdev_priv *np = netdev_priv(netdev);
 834         struct i40e_pf *pf = np->vsi->back;
 835         struct i40e_vsi *vsi = np->vsi;
 836         struct i40e_hw *hw = &pf->hw;
 837         struct i40e_link_status *hw_link_info = &hw->phy.link_info;
 838         struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config;
 839         bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP;
 840         i40e_status status;
 841         u8 aq_failures;
 842         int err = 0;
 843
 844         /* Changing the port's flow control is not supported if this isn't the
 845          * port's controlling PF
 846          */
 847         if (hw->partition_id != 1) {
 848                 i40e_partition_setting_complaint(pf);
 849                 return -EOPNOTSUPP;
 850         }
 851
 852         if (vsi != pf->vsi[pf->lan_vsi])
 853                 return -EOPNOTSUPP;
 854
 855         if (pause->autoneg != ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
 856             AUTONEG_ENABLE : AUTONEG_DISABLE)) {
 857                 netdev_info(netdev, "To change autoneg please use: ethtool -s <dev> autoneg <on|off>\n");
 858                 return -EOPNOTSUPP;
 859         }
 860
 861         /* If we have link and don't have autoneg */
 862         if (!test_bit(__I40E_DOWN, &pf->state) &&
 863             !(hw_link_info->an_info & I40E_AQ_AN_COMPLETED)) {
 864                 /* Send message that it might not necessarily work*/
 865                 netdev_info(netdev, "Autoneg did not complete so changing settings may not result in an actual change.\n");
 866         }
 867
 868         if (dcbx_cfg->pfc.pfcenable) {
 869                 netdev_info(netdev,
 870                             "Priority flow control enabled. Cannot set link flow control.\n");
 871                 return -EOPNOTSUPP;
 872         }
 873
 874         if (pause->rx_pause && pause->tx_pause)
 875                 hw->fc.requested_mode = I40E_FC_FULL;
 876         else if (pause->rx_pause && !pause->tx_pause)
 877                 hw->fc.requested_mode = I40E_FC_RX_PAUSE;
 878         else if (!pause->rx_pause && pause->tx_pause)
 879                 hw->fc.requested_mode = I40E_FC_TX_PAUSE;
 880         else if (!pause->rx_pause && !pause->tx_pause)
 881                 hw->fc.requested_mode = I40E_FC_NONE;
 882         else
 883                  return -EINVAL;
 884
 885         /* Tell the OS link is going down, the link will go back up when fw
 886          * says it is ready asynchronously
 887          */
 888         i40e_print_link_message(vsi, false);
 889         netif_carrier_off(netdev);
 890         netif_tx_stop_all_queues(netdev);
 891
 892         /* Set the fc mode and only restart an if link is up*/
 893         status = i40e_set_fc(hw, &aq_failures, link_up);
 894
 895         if (aq_failures & I40E_SET_FC_AQ_FAIL_GET) {
 896                 netdev_info(netdev, "Set fc failed on the get_phy_capabilities call with err %s aq_err %s\n",
 897                             i40e_stat_str(hw, status),
 898                             i40e_aq_str(hw, hw->aq.asq_last_status));
 899                 err = -EAGAIN;
 900         }
 901         if (aq_failures & I40E_SET_FC_AQ_FAIL_SET) {
 902                 netdev_info(netdev, "Set fc failed on the set_phy_config call with err %s aq_err %s\n",
 903                             i40e_stat_str(hw, status),
 904                             i40e_aq_str(hw, hw->aq.asq_last_status));
 905                 err = -EAGAIN;
 906         }
 907         if (aq_failures & I40E_SET_FC_AQ_FAIL_UPDATE) {
 908                 netdev_info(netdev, "Set fc failed on the get_link_info call with err %s aq_err %s\n",
 909                             i40e_stat_str(hw, status),
 910                             i40e_aq_str(hw, hw->aq.asq_last_status));
 911                 err = -EAGAIN;
 912         }
 913
 914         if (!test_bit(__I40E_DOWN, &pf->state)) {
 915                 /* Give it a little more time to try to come back */
 916                 msleep(75);
 917                 if (!test_bit(__I40E_DOWN, &pf->state))
 918                         return i40e_nway_reset(netdev);
 919         }
 920
 921         return err;
 922 }
 923
 924 static u32 i40e_get_msglevel(struct net_device *netdev)
 925 {
 926         struct i40e_netdev_priv *np = netdev_priv(netdev);
 927         struct i40e_pf *pf = np->vsi->back;
 928
 929         return pf->msg_enable;
 930 }
 931
 932 static void i40e_set_msglevel(struct net_device *netdev, u32 data)
 933 {
 934         struct i40e_netdev_priv *np = netdev_priv(netdev);
 935         struct i40e_pf *pf = np->vsi->back;
 936
 937         if (I40E_DEBUG_USER & data)
 938                 pf->hw.debug_mask = data;
 939         pf->msg_enable = data;
 940 }
 941
 942 static int i40e_get_regs_len(struct net_device *netdev)
 943 {
 944         int reg_count = 0;
 945         int i;
 946
 947         for (i = 0; i40e_reg_list[i].offset != 0; i++)
 948                 reg_count += i40e_reg_list[i].elements;
 949
 950         return reg_count * sizeof(u32);
 951 }
 952
 953 static void i40e_get_regs(struct net_device *netdev, struct ethtool_regs *regs,
 954                           void *p)
 955 {
 956         struct i40e_netdev_priv *np = netdev_priv(netdev);
 957         struct i40e_pf *pf = np->vsi->back;
 958         struct i40e_hw *hw = &pf->hw;
 959         u32 *reg_buf = p;
 960         int i, j, ri;
 961         u32 reg;
 962
 963         /* Tell ethtool which driver-version-specific regs output we have.
 964          *
 965          * At some point, if we have ethtool doing special formatting of
 966          * this data, it will rely on this version number to know how to
 967          * interpret things.  Hence, this needs to be updated if/when the
 968          * diags register table is changed.
 969          */
 970         regs->version = 1;
 971
 972         /* loop through the diags reg table for what to print */
 973         ri = 0;
 974         for (i = 0; i40e_reg_list[i].offset != 0; i++) {
 975                 for (j = 0; j < i40e_reg_list[i].elements; j++) {
 976                         reg = i40e_reg_list[i].offset
 977                                 + (j * i40e_reg_list[i].stride);
 978                         reg_buf[ri++] = rd32(hw, reg);
 979                 }
 980         }
 981
 982 }
 983
 984 static int i40e_get_eeprom(struct net_device *netdev,
 985                            struct ethtool_eeprom *eeprom, u8 *bytes)
 986 {
 987         struct i40e_netdev_priv *np = netdev_priv(netdev);
 988         struct i40e_hw *hw = &np->vsi->back->hw;
 989         struct i40e_pf *pf = np->vsi->back;
 990         int ret_val = 0, len, offset;
 991         u8 *eeprom_buff;
 992         u16 i, sectors;
 993         bool last;
 994         u32 magic;
 995
 996 #define I40E_NVM_SECTOR_SIZE  4096
 997         if (eeprom->len == 0)
 998                 return -EINVAL;
 999
1000         /* check for NVMUpdate access method */
1001         magic = hw->vendor_id | (hw->device_id << 16);
1002         if (eeprom->magic && eeprom->magic != magic) {
1003                 struct i40e_nvm_access *cmd;
1004                 int errno;
1005
1006                 /* make sure it is the right magic for NVMUpdate */
1007                 if ((eeprom->magic >> 16) != hw->device_id)
1008                         return -EINVAL;
1009
1010                 cmd = (struct i40e_nvm_access *)eeprom;
1011                 ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno);
1012                 if (ret_val && (hw->debug_mask & I40E_DEBUG_NVM))
1013                         dev_info(&pf->pdev->dev,
1014                                  "NVMUpdate read failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n",
1015                                  ret_val, hw->aq.asq_last_status, errno,
1016                                  (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK),
1017                                  cmd->offset, cmd->data_size);
1018
1019                 return errno;
1020         }
1021
1022         /* normal ethtool get_eeprom support */
1023         eeprom->magic = hw->vendor_id | (hw->device_id << 16);
1024
1025         eeprom_buff = kzalloc(eeprom->len, GFP_KERNEL);
1026         if (!eeprom_buff)
1027                 return -ENOMEM;
1028
1029         ret_val = i40e_acquire_nvm(hw, I40E_RESOURCE_READ);
1030         if (ret_val) {
1031                 dev_info(&pf->pdev->dev,
1032                          "Failed Acquiring NVM resource for read err=%d status=0x%x\n",
1033                          ret_val, hw->aq.asq_last_status);
1034                 goto free_buff;
1035         }
1036
1037         sectors = eeprom->len / I40E_NVM_SECTOR_SIZE;
1038         sectors += (eeprom->len % I40E_NVM_SECTOR_SIZE) ? 1 : 0;
1039         len = I40E_NVM_SECTOR_SIZE;
1040         last = false;
1041         for (i = 0; i < sectors; i++) {
1042                 if (i == (sectors - 1)) {
1043                         len = eeprom->len - (I40E_NVM_SECTOR_SIZE * i);
1044                         last = true;
1045                 }
1046                 offset = eeprom->offset + (I40E_NVM_SECTOR_SIZE * i),
1047                 ret_val = i40e_aq_read_nvm(hw, 0x0, offset, len,
1048                                 (u8 *)eeprom_buff + (I40E_NVM_SECTOR_SIZE * i),
1049                                 last, NULL);
1050                 if (ret_val && hw->aq.asq_last_status == I40E_AQ_RC_EPERM) {
1051                         dev_info(&pf->pdev->dev,
1052                                  "read NVM failed, invalid offset 0x%x\n",
1053                                  offset);
1054                         break;
1055                 } else if (ret_val &&
1056                            hw->aq.asq_last_status == I40E_AQ_RC_EACCES) {
1057                         dev_info(&pf->pdev->dev,
1058                                  "read NVM failed, access, offset 0x%x\n",
1059                                  offset);
1060                         break;
1061                 } else if (ret_val) {
1062                         dev_info(&pf->pdev->dev,
1063                                  "read NVM failed offset %d err=%d status=0x%x\n",
1064                                  offset, ret_val, hw->aq.asq_last_status);
1065                         break;
1066                 }
1067         }
1068
1069         i40e_release_nvm(hw);
1070         memcpy(bytes, (u8 *)eeprom_buff, eeprom->len);
1071 free_buff:
1072         kfree(eeprom_buff);
1073         return ret_val;
1074 }
1075
1076 static int i40e_get_eeprom_len(struct net_device *netdev)
1077 {
1078         struct i40e_netdev_priv *np = netdev_priv(netdev);
1079         struct i40e_hw *hw = &np->vsi->back->hw;
1080         u32 val;
1081
1082         val = (rd32(hw, I40E_GLPCI_LBARCTRL)
1083                 & I40E_GLPCI_LBARCTRL_FL_SIZE_MASK)
1084                 >> I40E_GLPCI_LBARCTRL_FL_SIZE_SHIFT;
1085         /* register returns value in power of 2, 64Kbyte chunks. */
1086         val = (64 * 1024) * BIT(val);
1087         return val;
1088 }
1089
1090 static int i40e_set_eeprom(struct net_device *netdev,
1091                            struct ethtool_eeprom *eeprom, u8 *bytes)
1092 {
1093         struct i40e_netdev_priv *np = netdev_priv(netdev);
1094         struct i40e_hw *hw = &np->vsi->back->hw;
1095         struct i40e_pf *pf = np->vsi->back;
1096         struct i40e_nvm_access *cmd;
1097         int ret_val = 0;
1098         int errno;
1099         u32 magic;
1100
1101         /* normal ethtool set_eeprom is not supported */
1102         magic = hw->vendor_id | (hw->device_id << 16);
1103         if (eeprom->magic == magic)
1104                 return -EOPNOTSUPP;
1105
1106         /* check for NVMUpdate access method */
1107         if (!eeprom->magic || (eeprom->magic >> 16) != hw->device_id)
1108                 return -EINVAL;
1109
1110         if (test_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state) ||
1111             test_bit(__I40E_RESET_INTR_RECEIVED, &pf->state))
1112                 return -EBUSY;
1113
1114         cmd = (struct i40e_nvm_access *)eeprom;
1115         ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno);
1116         if (ret_val && (hw->debug_mask & I40E_DEBUG_NVM))
1117                 dev_info(&pf->pdev->dev,
1118                          "NVMUpdate write failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n",
1119                          ret_val, hw->aq.asq_last_status, errno,
1120                          (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK),
1121                          cmd->offset, cmd->data_size);
1122
1123         return errno;
1124 }
1125
1126 static void i40e_get_drvinfo(struct net_device *netdev,
1127                              struct ethtool_drvinfo *drvinfo)
1128 {
1129         struct i40e_netdev_priv *np = netdev_priv(netdev);
1130         struct i40e_vsi *vsi = np->vsi;
1131         struct i40e_pf *pf = vsi->back;
1132
1133         strlcpy(drvinfo->driver, i40e_driver_name, sizeof(drvinfo->driver));
1134         strlcpy(drvinfo->version, i40e_driver_version_str,
1135                 sizeof(drvinfo->version));
1136         strlcpy(drvinfo->fw_version, i40e_nvm_version_str(&pf->hw),
1137                 sizeof(drvinfo->fw_version));
1138         strlcpy(drvinfo->bus_info, pci_name(pf->pdev),
1139                 sizeof(drvinfo->bus_info));
1140 }
1141
1142 static void i40e_get_ringparam(struct net_device *netdev,
1143                                struct ethtool_ringparam *ring)
1144 {
1145         struct i40e_netdev_priv *np = netdev_priv(netdev);
1146         struct i40e_pf *pf = np->vsi->back;
1147         struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi];
1148
1149         ring->rx_max_pending = I40E_MAX_NUM_DESCRIPTORS;
1150         ring->tx_max_pending = I40E_MAX_NUM_DESCRIPTORS;
1151         ring->rx_mini_max_pending = 0;
1152         ring->rx_jumbo_max_pending = 0;
1153         ring->rx_pending = vsi->rx_rings[0]->count;
1154         ring->tx_pending = vsi->tx_rings[0]->count;
1155         ring->rx_mini_pending = 0;
1156         ring->rx_jumbo_pending = 0;
1157 }
1158
1159 static int i40e_set_ringparam(struct net_device *netdev,
1160                               struct ethtool_ringparam *ring)
1161 {
1162         struct i40e_ring *tx_rings = NULL, *rx_rings = NULL;
1163         struct i40e_netdev_priv *np = netdev_priv(netdev);
1164         struct i40e_vsi *vsi = np->vsi;
1165         struct i40e_pf *pf = vsi->back;
1166         u32 new_rx_count, new_tx_count;
1167         int i, err = 0;
1168
1169         if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
1170                 return -EINVAL;
1171
1172         if (ring->tx_pending > I40E_MAX_NUM_DESCRIPTORS ||
1173             ring->tx_pending < I40E_MIN_NUM_DESCRIPTORS ||
1174             ring->rx_pending > I40E_MAX_NUM_DESCRIPTORS ||
1175             ring->rx_pending < I40E_MIN_NUM_DESCRIPTORS) {
1176                 netdev_info(netdev,
1177                             "Descriptors requested (Tx: %d / Rx: %d) out of range [%d-%d]\n",
1178                             ring->tx_pending, ring->rx_pending,
1179                             I40E_MIN_NUM_DESCRIPTORS, I40E_MAX_NUM_DESCRIPTORS);
1180                 return -EINVAL;
1181         }
1182
1183         new_tx_count = ALIGN(ring->tx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE);
1184         new_rx_count = ALIGN(ring->rx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE);
1185
1186         /* if nothing to do return success */
1187         if ((new_tx_count == vsi->tx_rings[0]->count) &&
1188             (new_rx_count == vsi->rx_rings[0]->count))
1189                 return 0;
1190
1191         while (test_and_set_bit(__I40E_CONFIG_BUSY, &pf->state))
1192                 usleep_range(1000, 2000);
1193
1194         if (!netif_running(vsi->netdev)) {
1195                 /* simple case - set for the next time the netdev is started */
1196                 for (i = 0; i < vsi->num_queue_pairs; i++) {
1197                         vsi->tx_rings[i]->count = new_tx_count;
1198                         vsi->rx_rings[i]->count = new_rx_count;
1199                 }
1200                 goto done;
1201         }
1202
1203         /* We can't just free everything and then setup again,
1204          * because the ISRs in MSI-X mode get passed pointers
1205          * to the Tx and Rx ring structs.
1206          */
1207
1208         /* alloc updated Tx resources */
1209         if (new_tx_count != vsi->tx_rings[0]->count) {
1210                 netdev_info(netdev,
1211                             "Changing Tx descriptor count from %d to %d.\n",
1212                             vsi->tx_rings[0]->count, new_tx_count);
1213                 tx_rings = kcalloc(vsi->alloc_queue_pairs,
1214                                    sizeof(struct i40e_ring), GFP_KERNEL);
1215                 if (!tx_rings) {
1216                         err = -ENOMEM;
1217                         goto done;
1218                 }
1219
1220                 for (i = 0; i < vsi->num_queue_pairs; i++) {
1221                         /* clone ring and setup updated count */
1222                         tx_rings[i] = *vsi->tx_rings[i];
1223                         tx_rings[i].count = new_tx_count;
1224                         /* the desc and bi pointers will be reallocated in the
1225                          * setup call
1226                          */
1227                         tx_rings[i].desc = NULL;
1228                         tx_rings[i].rx_bi = NULL;
1229                         err = i40e_setup_tx_descriptors(&tx_rings[i]);
1230                         if (err) {
1231                                 while (i) {
1232                                         i--;
1233                                         i40e_free_tx_resources(&tx_rings[i]);
1234                                 }
1235                                 kfree(tx_rings);
1236                                 tx_rings = NULL;
1237
1238                                 goto done;
1239                         }
1240                 }
1241         }
1242
1243         /* alloc updated Rx resources */
1244         if (new_rx_count != vsi->rx_rings[0]->count) {
1245                 netdev_info(netdev,
1246                             "Changing Rx descriptor count from %d to %d\n",
1247                             vsi->rx_rings[0]->count, new_rx_count);
1248                 rx_rings = kcalloc(vsi->alloc_queue_pairs,
1249                                    sizeof(struct i40e_ring), GFP_KERNEL);
1250                 if (!rx_rings) {
1251                         err = -ENOMEM;
1252                         goto free_tx;
1253                 }
1254
1255                 for (i = 0; i < vsi->num_queue_pairs; i++) {
1256                         /* clone ring and setup updated count */
1257                         rx_rings[i] = *vsi->rx_rings[i];
1258                         rx_rings[i].count = new_rx_count;
1259                         /* the desc and bi pointers will be reallocated in the
1260                          * setup call
1261                          */
1262                         rx_rings[i].desc = NULL;
1263                         rx_rings[i].rx_bi = NULL;
1264                         err = i40e_setup_rx_descriptors(&rx_rings[i]);
1265                         if (err) {
1266                                 while (i) {
1267                                         i--;
1268                                         i40e_free_rx_resources(&rx_rings[i]);
1269                                 }
1270                                 kfree(rx_rings);
1271                                 rx_rings = NULL;
1272
1273                                 goto free_tx;
1274                         }
1275                 }
1276         }
1277
1278         /* Bring interface down, copy in the new ring info,
1279          * then restore the interface
1280          */
1281         i40e_down(vsi);
1282
1283         if (tx_rings) {
1284                 for (i = 0; i < vsi->num_queue_pairs; i++) {
1285                         i40e_free_tx_resources(vsi->tx_rings[i]);
1286                         *vsi->tx_rings[i] = tx_rings[i];
1287                 }
1288                 kfree(tx_rings);
1289                 tx_rings = NULL;
1290         }
1291
1292         if (rx_rings) {
1293                 for (i = 0; i < vsi->num_queue_pairs; i++) {
1294                         i40e_free_rx_resources(vsi->rx_rings[i]);
1295                         *vsi->rx_rings[i] = rx_rings[i];
1296                 }
1297                 kfree(rx_rings);
1298                 rx_rings = NULL;
1299         }
1300
1301         i40e_up(vsi);
1302
1303 free_tx:
1304         /* error cleanup if the Rx allocations failed after getting Tx */
1305         if (tx_rings) {
1306                 for (i = 0; i < vsi->num_queue_pairs; i++)
1307                         i40e_free_tx_resources(&tx_rings[i]);
1308                 kfree(tx_rings);
1309                 tx_rings = NULL;
1310         }
1311
1312 done:
1313         clear_bit(__I40E_CONFIG_BUSY, &pf->state);
1314
1315         return err;
1316 }
1317
1318 static int i40e_get_sset_count(struct net_device *netdev, int sset)
1319 {
1320         struct i40e_netdev_priv *np = netdev_priv(netdev);
1321         struct i40e_vsi *vsi = np->vsi;
1322         struct i40e_pf *pf = vsi->back;
1323
1324         switch (sset) {
1325         case ETH_SS_TEST:
1326                 return I40E_TEST_LEN;
1327         case ETH_SS_STATS:
1328                 if (vsi == pf->vsi[pf->lan_vsi] && pf->hw.partition_id == 1) {
1329                         int len = I40E_PF_STATS_LEN(netdev);
1330
1331                         if ((pf->lan_veb != I40E_NO_VEB) &&
1332                             (pf->flags & I40E_FLAG_VEB_STATS_ENABLED))
1333                                 len += I40E_VEB_STATS_TOTAL;
1334                         return len;
1335                 } else {
1336                         return I40E_VSI_STATS_LEN(netdev);
1337                 }
1338         case ETH_SS_PRIV_FLAGS:
1339                 return I40E_PRIV_FLAGS_STR_LEN;
1340         default:
1341                 return -EOPNOTSUPP;
1342         }
1343 }
1344
1345 static void i40e_get_ethtool_stats(struct net_device *netdev,
1346                                    struct ethtool_stats *stats, u64 *data)
1347 {
1348         struct i40e_netdev_priv *np = netdev_priv(netdev);
1349         struct i40e_ring *tx_ring, *rx_ring;
1350         struct i40e_vsi *vsi = np->vsi;
1351         struct i40e_pf *pf = vsi->back;
1352         int i = 0;
1353         char *p;
1354         int j;
1355         struct rtnl_link_stats64 *net_stats = i40e_get_vsi_stats_struct(vsi);
1356         unsigned int start;
1357
1358         i40e_update_stats(vsi);
1359
1360         for (j = 0; j < I40E_NETDEV_STATS_LEN; j++) {
1361                 p = (char *)net_stats + i40e_gstrings_net_stats[j].stat_offset;
1362                 data[i++] = (i40e_gstrings_net_stats[j].sizeof_stat ==
1363                         sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1364         }
1365         for (j = 0; j < I40E_MISC_STATS_LEN; j++) {
1366                 p = (char *)vsi + i40e_gstrings_misc_stats[j].stat_offset;
1367                 data[i++] = (i40e_gstrings_misc_stats[j].sizeof_stat ==
1368                             sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1369         }
1370 #ifdef I40E_FCOE
1371         for (j = 0; j < I40E_FCOE_STATS_LEN; j++) {
1372                 p = (char *)vsi + i40e_gstrings_fcoe_stats[j].stat_offset;
1373                 data[i++] = (i40e_gstrings_fcoe_stats[j].sizeof_stat ==
1374                         sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1375         }
1376 #endif
1377         rcu_read_lock();
1378         for (j = 0; j < vsi->num_queue_pairs; j++) {
1379                 tx_ring = ACCESS_ONCE(vsi->tx_rings[j]);
1380
1381                 if (!tx_ring)
1382                         continue;
1383
1384                 /* process Tx ring statistics */
1385                 do {
1386                         start = u64_stats_fetch_begin_irq(&tx_ring->syncp);
1387                         data[i] = tx_ring->stats.packets;
1388                         data[i + 1] = tx_ring->stats.bytes;
1389                 } while (u64_stats_fetch_retry_irq(&tx_ring->syncp, start));
1390                 i += 2;
1391
1392                 /* Rx ring is the 2nd half of the queue pair */
1393                 rx_ring = &tx_ring[1];
1394                 do {
1395                         start = u64_stats_fetch_begin_irq(&rx_ring->syncp);
1396                         data[i] = rx_ring->stats.packets;
1397                         data[i + 1] = rx_ring->stats.bytes;
1398                 } while (u64_stats_fetch_retry_irq(&rx_ring->syncp, start));
1399                 i += 2;
1400         }
1401         rcu_read_unlock();
1402         if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1)
1403                 return;
1404
1405         if ((pf->lan_veb != I40E_NO_VEB) &&
1406             (pf->flags & I40E_FLAG_VEB_STATS_ENABLED)) {
1407                 struct i40e_veb *veb = pf->veb[pf->lan_veb];
1408
1409                 for (j = 0; j < I40E_VEB_STATS_LEN; j++) {
1410                         p = (char *)veb;
1411                         p += i40e_gstrings_veb_stats[j].stat_offset;
1412                         data[i++] = (i40e_gstrings_veb_stats[j].sizeof_stat ==
1413                                      sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1414                 }
1415                 for (j = 0; j < I40E_MAX_TRAFFIC_CLASS; j++) {
1416                         data[i++] = veb->tc_stats.tc_tx_packets[j];
1417                         data[i++] = veb->tc_stats.tc_tx_bytes[j];
1418                         data[i++] = veb->tc_stats.tc_rx_packets[j];
1419                         data[i++] = veb->tc_stats.tc_rx_bytes[j];
1420                 }
1421         }
1422         for (j = 0; j < I40E_GLOBAL_STATS_LEN; j++) {
1423                 p = (char *)pf + i40e_gstrings_stats[j].stat_offset;
1424                 data[i++] = (i40e_gstrings_stats[j].sizeof_stat ==
1425                              sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1426         }
1427         for (j = 0; j < I40E_MAX_USER_PRIORITY; j++) {
1428                 data[i++] = pf->stats.priority_xon_tx[j];
1429                 data[i++] = pf->stats.priority_xoff_tx[j];
1430         }
1431         for (j = 0; j < I40E_MAX_USER_PRIORITY; j++) {
1432                 data[i++] = pf->stats.priority_xon_rx[j];
1433                 data[i++] = pf->stats.priority_xoff_rx[j];
1434         }
1435         for (j = 0; j < I40E_MAX_USER_PRIORITY; j++)
1436                 data[i++] = pf->stats.priority_xon_2_xoff[j];
1437 }
1438
1439 static void i40e_get_strings(struct net_device *netdev, u32 stringset,
1440                              u8 *data)
1441 {
1442         struct i40e_netdev_priv *np = netdev_priv(netdev);
1443         struct i40e_vsi *vsi = np->vsi;
1444         struct i40e_pf *pf = vsi->back;
1445         char *p = (char *)data;
1446         int i;
1447
1448         switch (stringset) {
1449         case ETH_SS_TEST:
1450                 for (i = 0; i < I40E_TEST_LEN; i++) {
1451                         memcpy(data, i40e_gstrings_test[i], ETH_GSTRING_LEN);
1452                         data += ETH_GSTRING_LEN;
1453                 }
1454                 break;
1455         case ETH_SS_STATS:
1456                 for (i = 0; i < I40E_NETDEV_STATS_LEN; i++) {
1457                         snprintf(p, ETH_GSTRING_LEN, "%s",
1458                                  i40e_gstrings_net_stats[i].stat_string);
1459                         p += ETH_GSTRING_LEN;
1460                 }
1461                 for (i = 0; i < I40E_MISC_STATS_LEN; i++) {
1462                         snprintf(p, ETH_GSTRING_LEN, "%s",
1463                                  i40e_gstrings_misc_stats[i].stat_string);
1464                         p += ETH_GSTRING_LEN;
1465                 }
1466 #ifdef I40E_FCOE
1467                 for (i = 0; i < I40E_FCOE_STATS_LEN; i++) {
1468                         snprintf(p, ETH_GSTRING_LEN, "%s",
1469                                  i40e_gstrings_fcoe_stats[i].stat_string);
1470                         p += ETH_GSTRING_LEN;
1471                 }
1472 #endif
1473                 for (i = 0; i < vsi->num_queue_pairs; i++) {
1474                         snprintf(p, ETH_GSTRING_LEN, "tx-%u.tx_packets", i);
1475                         p += ETH_GSTRING_LEN;
1476                         snprintf(p, ETH_GSTRING_LEN, "tx-%u.tx_bytes", i);
1477                         p += ETH_GSTRING_LEN;
1478                         snprintf(p, ETH_GSTRING_LEN, "rx-%u.rx_packets", i);
1479                         p += ETH_GSTRING_LEN;
1480                         snprintf(p, ETH_GSTRING_LEN, "rx-%u.rx_bytes", i);
1481                         p += ETH_GSTRING_LEN;
1482                 }
1483                 if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1)
1484                         return;
1485
1486                 if ((pf->lan_veb != I40E_NO_VEB) &&
1487                     (pf->flags & I40E_FLAG_VEB_STATS_ENABLED)) {
1488                         for (i = 0; i < I40E_VEB_STATS_LEN; i++) {
1489                                 snprintf(p, ETH_GSTRING_LEN, "veb.%s",
1490                                         i40e_gstrings_veb_stats[i].stat_string);
1491                                 p += ETH_GSTRING_LEN;
1492                         }
1493                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1494                                 snprintf(p, ETH_GSTRING_LEN,
1495                                          "veb.tc_%u_tx_packets", i);
1496                                 p += ETH_GSTRING_LEN;
1497                                 snprintf(p, ETH_GSTRING_LEN,
1498                                          "veb.tc_%u_tx_bytes", i);
1499                                 p += ETH_GSTRING_LEN;
1500                                 snprintf(p, ETH_GSTRING_LEN,
1501                                          "veb.tc_%u_rx_packets", i);
1502                                 p += ETH_GSTRING_LEN;
1503                                 snprintf(p, ETH_GSTRING_LEN,
1504                                          "veb.tc_%u_rx_bytes", i);
1505                                 p += ETH_GSTRING_LEN;
1506                         }
1507                 }
1508                 for (i = 0; i < I40E_GLOBAL_STATS_LEN; i++) {
1509                         snprintf(p, ETH_GSTRING_LEN, "port.%s",
1510                                  i40e_gstrings_stats[i].stat_string);
1511                         p += ETH_GSTRING_LEN;
1512                 }
1513                 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) {
1514                         snprintf(p, ETH_GSTRING_LEN,
1515                                  "port.tx_priority_%u_xon", i);
1516                         p += ETH_GSTRING_LEN;
1517                         snprintf(p, ETH_GSTRING_LEN,
1518                                  "port.tx_priority_%u_xoff", i);
1519                         p += ETH_GSTRING_LEN;
1520                 }
1521                 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) {
1522                         snprintf(p, ETH_GSTRING_LEN,
1523                                  "port.rx_priority_%u_xon", i);
1524                         p += ETH_GSTRING_LEN;
1525                         snprintf(p, ETH_GSTRING_LEN,
1526                                  "port.rx_priority_%u_xoff", i);
1527                         p += ETH_GSTRING_LEN;
1528                 }
1529                 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) {
1530                         snprintf(p, ETH_GSTRING_LEN,
1531                                  "port.rx_priority_%u_xon_2_xoff", i);
1532                         p += ETH_GSTRING_LEN;
1533                 }
1534                 /* BUG_ON(p - data != I40E_STATS_LEN * ETH_GSTRING_LEN); */
1535                 break;
1536         case ETH_SS_PRIV_FLAGS:
1537                 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) {
1538                         memcpy(data, i40e_priv_flags_strings[i],
1539                                ETH_GSTRING_LEN);
1540                         data += ETH_GSTRING_LEN;
1541                 }
1542                 break;
1543         default:
1544                 break;
1545         }
1546 }
1547
1548 static int i40e_get_ts_info(struct net_device *dev,
1549                             struct ethtool_ts_info *info)
1550 {
1551         struct i40e_pf *pf = i40e_netdev_to_pf(dev);
1552
1553         /* only report HW timestamping if PTP is enabled */
1554         if (!(pf->flags & I40E_FLAG_PTP))
1555                 return ethtool_op_get_ts_info(dev, info);
1556
1557         info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE |
1558                                 SOF_TIMESTAMPING_RX_SOFTWARE |
1559                                 SOF_TIMESTAMPING_SOFTWARE |
1560                                 SOF_TIMESTAMPING_TX_HARDWARE |
1561                                 SOF_TIMESTAMPING_RX_HARDWARE |
1562                                 SOF_TIMESTAMPING_RAW_HARDWARE;
1563
1564         if (pf->ptp_clock)
1565                 info->phc_index = ptp_clock_index(pf->ptp_clock);
1566         else
1567                 info->phc_index = -1;
1568
1569         info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON);
1570
1571         info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) |
1572                            BIT(HWTSTAMP_FILTER_PTP_V1_L4_EVENT) |
1573                            BIT(HWTSTAMP_FILTER_PTP_V2_EVENT);
1574
1575         return 0;
1576 }
1577
1578 static int i40e_link_test(struct net_device *netdev, u64 *data)
1579 {
1580         struct i40e_netdev_priv *np = netdev_priv(netdev);
1581         struct i40e_pf *pf = np->vsi->back;
1582         i40e_status status;
1583         bool link_up = false;
1584
1585         netif_info(pf, hw, netdev, "link test\n");
1586         status = i40e_get_link_status(&pf->hw, &link_up);
1587         if (status) {
1588                 netif_err(pf, drv, netdev, "link query timed out, please retry test\n");
1589                 *data = 1;
1590                 return *data;
1591         }
1592
1593         if (link_up)
1594                 *data = 0;
1595         else
1596                 *data = 1;
1597
1598         return *data;
1599 }
1600
1601 static int i40e_reg_test(struct net_device *netdev, u64 *data)
1602 {
1603         struct i40e_netdev_priv *np = netdev_priv(netdev);
1604         struct i40e_pf *pf = np->vsi->back;
1605
1606         netif_info(pf, hw, netdev, "register test\n");
1607         *data = i40e_diag_reg_test(&pf->hw);
1608
1609         return *data;
1610 }
1611
1612 static int i40e_eeprom_test(struct net_device *netdev, u64 *data)
1613 {
1614         struct i40e_netdev_priv *np = netdev_priv(netdev);
1615         struct i40e_pf *pf = np->vsi->back;
1616
1617         netif_info(pf, hw, netdev, "eeprom test\n");
1618         *data = i40e_diag_eeprom_test(&pf->hw);
1619
1620         /* forcebly clear the NVM Update state machine */
1621         pf->hw.nvmupd_state = I40E_NVMUPD_STATE_INIT;
1622
1623         return *data;
1624 }
1625
1626 static int i40e_intr_test(struct net_device *netdev, u64 *data)
1627 {
1628         struct i40e_netdev_priv *np = netdev_priv(netdev);
1629         struct i40e_pf *pf = np->vsi->back;
1630         u16 swc_old = pf->sw_int_count;
1631
1632         netif_info(pf, hw, netdev, "interrupt test\n");
1633         wr32(&pf->hw, I40E_PFINT_DYN_CTL0,
1634              (I40E_PFINT_DYN_CTL0_INTENA_MASK |
1635               I40E_PFINT_DYN_CTL0_SWINT_TRIG_MASK |
1636               I40E_PFINT_DYN_CTL0_ITR_INDX_MASK |
1637               I40E_PFINT_DYN_CTL0_SW_ITR_INDX_ENA_MASK |
1638               I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK));
1639         usleep_range(1000, 2000);
1640         *data = (swc_old == pf->sw_int_count);
1641
1642         return *data;
1643 }
1644
1645 static int i40e_loopback_test(struct net_device *netdev, u64 *data)
1646 {
1647         struct i40e_netdev_priv *np = netdev_priv(netdev);
1648         struct i40e_pf *pf = np->vsi->back;
1649
1650         netif_info(pf, hw, netdev, "loopback test not implemented\n");
1651         *data = 0;
1652
1653         return *data;
1654 }
1655
1656 static inline bool i40e_active_vfs(struct i40e_pf *pf)
1657 {
1658         struct i40e_vf *vfs = pf->vf;
1659         int i;
1660
1661         for (i = 0; i < pf->num_alloc_vfs; i++)
1662                 if (test_bit(I40E_VF_STAT_ACTIVE, &vfs[i].vf_states))
1663                         return true;
1664         return false;
1665 }
1666
1667 static inline bool i40e_active_vmdqs(struct i40e_pf *pf)
1668 {
1669         struct i40e_vsi **vsi = pf->vsi;
1670         int i;
1671
1672         for (i = 0; i < pf->num_alloc_vsi; i++) {
1673                 if (!vsi[i])
1674                         continue;
1675                 if (vsi[i]->type == I40E_VSI_VMDQ2)
1676                         return true;
1677         }
1678
1679         return false;
1680 }
1681
1682 static void i40e_diag_test(struct net_device *netdev,
1683                            struct ethtool_test *eth_test, u64 *data)
1684 {
1685         struct i40e_netdev_priv *np = netdev_priv(netdev);
1686         bool if_running = netif_running(netdev);
1687         struct i40e_pf *pf = np->vsi->back;
1688
1689         if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
1690                 /* Offline tests */
1691                 netif_info(pf, drv, netdev, "offline testing starting\n");
1692
1693                 set_bit(__I40E_TESTING, &pf->state);
1694
1695                 if (i40e_active_vfs(pf) || i40e_active_vmdqs(pf)) {
1696                         dev_warn(&pf->pdev->dev,
1697                                  "Please take active VFs and Netqueues offline and restart the adapter before running NIC diagnostics\n");
1698                         data[I40E_ETH_TEST_REG]         = 1;
1699                         data[I40E_ETH_TEST_EEPROM]      = 1;
1700                         data[I40E_ETH_TEST_INTR]        = 1;
1701                         data[I40E_ETH_TEST_LOOPBACK]    = 1;
1702                         data[I40E_ETH_TEST_LINK]        = 1;
1703                         eth_test->flags |= ETH_TEST_FL_FAILED;
1704                         clear_bit(__I40E_TESTING, &pf->state);
1705                         goto skip_ol_tests;
1706                 }
1707
1708                 /* If the device is online then take it offline */
1709                 if (if_running)
1710                         /* indicate we're in test mode */
1711                         dev_close(netdev);
1712                 else
1713                         /* This reset does not affect link - if it is
1714                          * changed to a type of reset that does affect
1715                          * link then the following link test would have
1716                          * to be moved to before the reset
1717                          */
1718                         i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED));
1719
1720                 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK]))
1721                         eth_test->flags |= ETH_TEST_FL_FAILED;
1722
1723                 if (i40e_eeprom_test(netdev, &data[I40E_ETH_TEST_EEPROM]))
1724                         eth_test->flags |= ETH_TEST_FL_FAILED;
1725
1726                 if (i40e_intr_test(netdev, &data[I40E_ETH_TEST_INTR]))
1727                         eth_test->flags |= ETH_TEST_FL_FAILED;
1728
1729                 if (i40e_loopback_test(netdev, &data[I40E_ETH_TEST_LOOPBACK]))
1730                         eth_test->flags |= ETH_TEST_FL_FAILED;
1731
1732                 /* run reg test last, a reset is required after it */
1733                 if (i40e_reg_test(netdev, &data[I40E_ETH_TEST_REG]))
1734                         eth_test->flags |= ETH_TEST_FL_FAILED;
1735
1736                 clear_bit(__I40E_TESTING, &pf->state);
1737                 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED));
1738
1739                 if (if_running)
1740                         dev_open(netdev);
1741         } else {
1742                 /* Online tests */
1743                 netif_info(pf, drv, netdev, "online testing starting\n");
1744
1745                 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK]))
1746                         eth_test->flags |= ETH_TEST_FL_FAILED;
1747
1748                 /* Offline only tests, not run in online; pass by default */
1749                 data[I40E_ETH_TEST_REG] = 0;
1750                 data[I40E_ETH_TEST_EEPROM] = 0;
1751                 data[I40E_ETH_TEST_INTR] = 0;
1752                 data[I40E_ETH_TEST_LOOPBACK] = 0;
1753         }
1754
1755 skip_ol_tests:
1756
1757         netif_info(pf, drv, netdev, "testing finished\n");
1758 }
1759
1760 static void i40e_get_wol(struct net_device *netdev,
1761                          struct ethtool_wolinfo *wol)
1762 {
1763         struct i40e_netdev_priv *np = netdev_priv(netdev);
1764         struct i40e_pf *pf = np->vsi->back;
1765         struct i40e_hw *hw = &pf->hw;
1766         u16 wol_nvm_bits;
1767
1768         /* NVM bit on means WoL disabled for the port */
1769         i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits);
1770         if ((BIT(hw->port) & wol_nvm_bits) || (hw->partition_id != 1)) {
1771                 wol->supported = 0;
1772                 wol->wolopts = 0;
1773         } else {
1774                 wol->supported = WAKE_MAGIC;
1775                 wol->wolopts = (pf->wol_en ? WAKE_MAGIC : 0);
1776         }
1777 }
1778
1779 /**
1780  * i40e_set_wol - set the WakeOnLAN configuration
1781  * @netdev: the netdev in question
1782  * @wol: the ethtool WoL setting data
1783  **/
1784 static int i40e_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
1785 {
1786         struct i40e_netdev_priv *np = netdev_priv(netdev);
1787         struct i40e_pf *pf = np->vsi->back;
1788         struct i40e_vsi *vsi = np->vsi;
1789         struct i40e_hw *hw = &pf->hw;
1790         u16 wol_nvm_bits;
1791
1792         /* WoL not supported if this isn't the controlling PF on the port */
1793         if (hw->partition_id != 1) {
1794                 i40e_partition_setting_complaint(pf);
1795                 return -EOPNOTSUPP;
1796         }
1797
1798         if (vsi != pf->vsi[pf->lan_vsi])
1799                 return -EOPNOTSUPP;
1800
1801         /* NVM bit on means WoL disabled for the port */
1802         i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits);
1803         if (BIT(hw->port) & wol_nvm_bits)
1804                 return -EOPNOTSUPP;
1805
1806         /* only magic packet is supported */
1807         if (wol->wolopts && (wol->wolopts != WAKE_MAGIC))
1808                 return -EOPNOTSUPP;
1809
1810         /* is this a new value? */
1811         if (pf->wol_en != !!wol->wolopts) {
1812                 pf->wol_en = !!wol->wolopts;
1813                 device_set_wakeup_enable(&pf->pdev->dev, pf->wol_en);
1814         }
1815
1816         return 0;
1817 }
1818
1819 static int i40e_set_phys_id(struct net_device *netdev,
1820                             enum ethtool_phys_id_state state)
1821 {
1822         struct i40e_netdev_priv *np = netdev_priv(netdev);
1823         struct i40e_pf *pf = np->vsi->back;
1824         struct i40e_hw *hw = &pf->hw;
1825         int blink_freq = 2;
1826
1827         switch (state) {
1828         case ETHTOOL_ID_ACTIVE:
1829                 pf->led_status = i40e_led_get(hw);
1830                 return blink_freq;
1831         case ETHTOOL_ID_ON:
1832                 i40e_led_set(hw, 0xF, false);
1833                 break;
1834         case ETHTOOL_ID_OFF:
1835                 i40e_led_set(hw, 0x0, false);
1836                 break;
1837         case ETHTOOL_ID_INACTIVE:
1838                 i40e_led_set(hw, pf->led_status, false);
1839                 break;
1840         default:
1841                 break;
1842         }
1843
1844         return 0;
1845 }
1846
1847 /* NOTE: i40e hardware uses a conversion factor of 2 for Interrupt
1848  * Throttle Rate (ITR) ie. ITR(1) = 2us ITR(10) = 20 us, and also
1849  * 125us (8000 interrupts per second) == ITR(62)
1850  */
1851
1852 static int i40e_get_coalesce(struct net_device *netdev,
1853                              struct ethtool_coalesce *ec)
1854 {
1855         struct i40e_netdev_priv *np = netdev_priv(netdev);
1856         struct i40e_vsi *vsi = np->vsi;
1857
1858         ec->tx_max_coalesced_frames_irq = vsi->work_limit;
1859         ec->rx_max_coalesced_frames_irq = vsi->work_limit;
1860
1861         if (ITR_IS_DYNAMIC(vsi->rx_itr_setting))
1862                 ec->use_adaptive_rx_coalesce = 1;
1863
1864         if (ITR_IS_DYNAMIC(vsi->tx_itr_setting))
1865                 ec->use_adaptive_tx_coalesce = 1;
1866
1867         ec->rx_coalesce_usecs = vsi->rx_itr_setting & ~I40E_ITR_DYNAMIC;
1868         ec->tx_coalesce_usecs = vsi->tx_itr_setting & ~I40E_ITR_DYNAMIC;
1869         /* we use the _usecs_high to store/set the interrupt rate limit
1870          * that the hardware supports, that almost but not quite
1871          * fits the original intent of the ethtool variable,
1872          * the rx_coalesce_usecs_high limits total interrupts
1873          * per second from both tx/rx sources.
1874          */
1875         ec->rx_coalesce_usecs_high = vsi->int_rate_limit;
1876         ec->tx_coalesce_usecs_high = vsi->int_rate_limit;
1877
1878         return 0;
1879 }
1880
1881 static int i40e_set_coalesce(struct net_device *netdev,
1882                              struct ethtool_coalesce *ec)
1883 {
1884         struct i40e_netdev_priv *np = netdev_priv(netdev);
1885         struct i40e_q_vector *q_vector;
1886         struct i40e_vsi *vsi = np->vsi;
1887         struct i40e_pf *pf = vsi->back;
1888         struct i40e_hw *hw = &pf->hw;
1889         u16 vector;
1890         int i;
1891
1892         if (ec->tx_max_coalesced_frames_irq || ec->rx_max_coalesced_frames_irq)
1893                 vsi->work_limit = ec->tx_max_coalesced_frames_irq;
1894
1895         /* tx_coalesce_usecs_high is ignored, use rx-usecs-high instead */
1896         if (ec->tx_coalesce_usecs_high != vsi->int_rate_limit) {
1897                 netif_info(pf, drv, netdev, "tx-usecs-high is not used, please program rx-usecs-high\n");
1898                 return -EINVAL;
1899         }
1900
1901         if (ec->rx_coalesce_usecs_high >= INTRL_REG_TO_USEC(I40E_MAX_INTRL)) {
1902                 netif_info(pf, drv, netdev, "Invalid value, rx-usecs-high range is 0-235\n");
1903                 return -EINVAL;
1904         }
1905
1906         vector = vsi->base_vector;
1907         if ((ec->rx_coalesce_usecs >= (I40E_MIN_ITR << 1)) &&
1908             (ec->rx_coalesce_usecs <= (I40E_MAX_ITR << 1))) {
1909                 vsi->rx_itr_setting = ec->rx_coalesce_usecs;
1910         } else if (ec->rx_coalesce_usecs == 0) {
1911                 vsi->rx_itr_setting = ec->rx_coalesce_usecs;
1912                 if (ec->use_adaptive_rx_coalesce)
1913                         netif_info(pf, drv, netdev, "rx-usecs=0, need to disable adaptive-rx for a complete disable\n");
1914         } else {
1915                 netif_info(pf, drv, netdev, "Invalid value, rx-usecs range is 0-8160\n");
1916                 return -EINVAL;
1917         }
1918
1919         vsi->int_rate_limit = ec->rx_coalesce_usecs_high;
1920
1921         if ((ec->tx_coalesce_usecs >= (I40E_MIN_ITR << 1)) &&
1922             (ec->tx_coalesce_usecs <= (I40E_MAX_ITR << 1))) {
1923                 vsi->tx_itr_setting = ec->tx_coalesce_usecs;
1924         } else if (ec->tx_coalesce_usecs == 0) {
1925                 vsi->tx_itr_setting = ec->tx_coalesce_usecs;
1926                 if (ec->use_adaptive_tx_coalesce)
1927                         netif_info(pf, drv, netdev, "tx-usecs=0, need to disable adaptive-tx for a complete disable\n");
1928         } else {
1929                 netif_info(pf, drv, netdev,
1930                            "Invalid value, tx-usecs range is 0-8160\n");
1931                 return -EINVAL;
1932         }
1933
1934         if (ec->use_adaptive_rx_coalesce)
1935                 vsi->rx_itr_setting |= I40E_ITR_DYNAMIC;
1936         else
1937                 vsi->rx_itr_setting &= ~I40E_ITR_DYNAMIC;
1938
1939         if (ec->use_adaptive_tx_coalesce)
1940                 vsi->tx_itr_setting |= I40E_ITR_DYNAMIC;
1941         else
1942                 vsi->tx_itr_setting &= ~I40E_ITR_DYNAMIC;
1943
1944         for (i = 0; i < vsi->num_q_vectors; i++, vector++) {
1945                 u16 intrl = INTRL_USEC_TO_REG(vsi->int_rate_limit);
1946
1947                 q_vector = vsi->q_vectors[i];
1948                 q_vector->rx.itr = ITR_TO_REG(vsi->rx_itr_setting);
1949                 wr32(hw, I40E_PFINT_ITRN(0, vector - 1), q_vector->rx.itr);
1950                 q_vector->tx.itr = ITR_TO_REG(vsi->tx_itr_setting);
1951                 wr32(hw, I40E_PFINT_ITRN(1, vector - 1), q_vector->tx.itr);
1952                 wr32(hw, I40E_PFINT_RATEN(vector - 1), intrl);
1953                 i40e_flush(hw);
1954         }
1955
1956         return 0;
1957 }
1958
1959 /**
1960  * i40e_get_rss_hash_opts - Get RSS hash Input Set for each flow type
1961  * @pf: pointer to the physical function struct
1962  * @cmd: ethtool rxnfc command
1963  *
1964  * Returns Success if the flow is supported, else Invalid Input.
1965  **/
1966 static int i40e_get_rss_hash_opts(struct i40e_pf *pf, struct ethtool_rxnfc *cmd)
1967 {
1968         cmd->data = 0;
1969
1970         if (pf->vsi[pf->lan_vsi]->rxnfc.data != 0) {
1971                 cmd->data = pf->vsi[pf->lan_vsi]->rxnfc.data;
1972                 cmd->flow_type = pf->vsi[pf->lan_vsi]->rxnfc.flow_type;
1973                 return 0;
1974         }
1975         /* Report default options for RSS on i40e */
1976         switch (cmd->flow_type) {
1977         case TCP_V4_FLOW:
1978         case UDP_V4_FLOW:
1979                 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
1980         /* fall through to add IP fields */
1981         case SCTP_V4_FLOW:
1982         case AH_ESP_V4_FLOW:
1983         case AH_V4_FLOW:
1984         case ESP_V4_FLOW:
1985         case IPV4_FLOW:
1986                 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
1987                 break;
1988         case TCP_V6_FLOW:
1989         case UDP_V6_FLOW:
1990                 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
1991         /* fall through to add IP fields */
1992         case SCTP_V6_FLOW:
1993         case AH_ESP_V6_FLOW:
1994         case AH_V6_FLOW:
1995         case ESP_V6_FLOW:
1996         case IPV6_FLOW:
1997                 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
1998                 break;
1999         default:
2000                 return -EINVAL;
2001         }
2002
2003         return 0;
2004 }
2005
2006 /**
2007  * i40e_get_ethtool_fdir_all - Populates the rule count of a command
2008  * @pf: Pointer to the physical function struct
2009  * @cmd: The command to get or set Rx flow classification rules
2010  * @rule_locs: Array of used rule locations
2011  *
2012  * This function populates both the total and actual rule count of
2013  * the ethtool flow classification command
2014  *
2015  * Returns 0 on success or -EMSGSIZE if entry not found
2016  **/
2017 static int i40e_get_ethtool_fdir_all(struct i40e_pf *pf,
2018                                      struct ethtool_rxnfc *cmd,
2019                                      u32 *rule_locs)
2020 {
2021         struct i40e_fdir_filter *rule;
2022         struct hlist_node *node2;
2023         int cnt = 0;
2024
2025         /* report total rule count */
2026         cmd->data = i40e_get_fd_cnt_all(pf);
2027
2028         hlist_for_each_entry_safe(rule, node2,
2029                                   &pf->fdir_filter_list, fdir_node) {
2030                 if (cnt == cmd->rule_cnt)
2031                         return -EMSGSIZE;
2032
2033                 rule_locs[cnt] = rule->fd_id;
2034                 cnt++;
2035         }
2036
2037         cmd->rule_cnt = cnt;
2038
2039         return 0;
2040 }
2041
2042 /**
2043  * i40e_get_ethtool_fdir_entry - Look up a filter based on Rx flow
2044  * @pf: Pointer to the physical function struct
2045  * @cmd: The command to get or set Rx flow classification rules
2046  *
2047  * This function looks up a filter based on the Rx flow classification
2048  * command and fills the flow spec info for it if found
2049  *
2050  * Returns 0 on success or -EINVAL if filter not found
2051  **/
2052 static int i40e_get_ethtool_fdir_entry(struct i40e_pf *pf,
2053                                        struct ethtool_rxnfc *cmd)
2054 {
2055         struct ethtool_rx_flow_spec *fsp =
2056                         (struct ethtool_rx_flow_spec *)&cmd->fs;
2057         struct i40e_fdir_filter *rule = NULL;
2058         struct hlist_node *node2;
2059
2060         hlist_for_each_entry_safe(rule, node2,
2061                                   &pf->fdir_filter_list, fdir_node) {
2062                 if (fsp->location <= rule->fd_id)
2063                         break;
2064         }
2065
2066         if (!rule || fsp->location != rule->fd_id)
2067                 return -EINVAL;
2068
2069         fsp->flow_type = rule->flow_type;
2070         if (fsp->flow_type == IP_USER_FLOW) {
2071                 fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4;
2072                 fsp->h_u.usr_ip4_spec.proto = 0;
2073                 fsp->m_u.usr_ip4_spec.proto = 0;
2074         }
2075
2076         /* Reverse the src and dest notion, since the HW views them from
2077          * Tx perspective where as the user expects it from Rx filter view.
2078          */
2079         fsp->h_u.tcp_ip4_spec.psrc = rule->dst_port;
2080         fsp->h_u.tcp_ip4_spec.pdst = rule->src_port;
2081         fsp->h_u.tcp_ip4_spec.ip4src = rule->dst_ip[0];
2082         fsp->h_u.tcp_ip4_spec.ip4dst = rule->src_ip[0];
2083
2084         if (rule->dest_ctl == I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET)
2085                 fsp->ring_cookie = RX_CLS_FLOW_DISC;
2086         else
2087                 fsp->ring_cookie = rule->q_index;
2088
2089         if (rule->dest_vsi != pf->vsi[pf->lan_vsi]->id) {
2090                 struct i40e_vsi *vsi;
2091
2092                 vsi = i40e_find_vsi_from_id(pf, rule->dest_vsi);
2093                 if (vsi && vsi->type == I40E_VSI_SRIOV) {
2094                         fsp->h_ext.data[1] = htonl(vsi->vf_id);
2095                         fsp->m_ext.data[1] = htonl(0x1);
2096                 }
2097         }
2098
2099         return 0;
2100 }
2101
2102 /**
2103  * i40e_get_rxnfc - command to get RX flow classification rules
2104  * @netdev: network interface device structure
2105  * @cmd: ethtool rxnfc command
2106  *
2107  * Returns Success if the command is supported.
2108  **/
2109 static int i40e_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd,
2110                           u32 *rule_locs)
2111 {
2112         struct i40e_netdev_priv *np = netdev_priv(netdev);
2113         struct i40e_vsi *vsi = np->vsi;
2114         struct i40e_pf *pf = vsi->back;
2115         int ret = -EOPNOTSUPP;
2116
2117         switch (cmd->cmd) {
2118         case ETHTOOL_GRXRINGS:
2119                 cmd->data = vsi->num_queue_pairs;
2120                 ret = 0;
2121                 break;
2122         case ETHTOOL_GRXFH:
2123                 ret = i40e_get_rss_hash_opts(pf, cmd);
2124                 break;
2125         case ETHTOOL_GRXCLSRLCNT:
2126                 cmd->rule_cnt = pf->fdir_pf_active_filters;
2127                 /* report total rule count */
2128                 cmd->data = i40e_get_fd_cnt_all(pf);
2129                 ret = 0;
2130                 break;
2131         case ETHTOOL_GRXCLSRULE:
2132                 ret = i40e_get_ethtool_fdir_entry(pf, cmd);
2133                 break;
2134         case ETHTOOL_GRXCLSRLALL:
2135                 ret = i40e_get_ethtool_fdir_all(pf, cmd, rule_locs);
2136                 break;
2137         default:
2138                 break;
2139         }
2140
2141         return ret;
2142 }
2143
2144 /**
2145  * i40e_set_rss_hash_opt - Enable/Disable flow types for RSS hash
2146  * @pf: pointer to the physical function struct
2147  * @cmd: ethtool rxnfc command
2148  *
2149  * Returns Success if the flow input set is supported.
2150  **/
2151 static int i40e_set_rss_hash_opt(struct i40e_pf *pf, struct ethtool_rxnfc *nfc)
2152 {
2153         struct i40e_hw *hw = &pf->hw;
2154         u64 hena = (u64)rd32(hw, I40E_PFQF_HENA(0)) |
2155                    ((u64)rd32(hw, I40E_PFQF_HENA(1)) << 32);
2156
2157         /* RSS does not support anything other than hashing
2158          * to queues on src and dst IPs and ports
2159          */
2160         if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST |
2161                           RXH_L4_B_0_1 | RXH_L4_B_2_3))
2162                 return -EINVAL;
2163
2164         /* We need at least the IP SRC and DEST fields for hashing */
2165         if (!(nfc->data & RXH_IP_SRC) ||
2166             !(nfc->data & RXH_IP_DST))
2167                 return -EINVAL;
2168
2169         switch (nfc->flow_type) {
2170         case TCP_V4_FLOW:
2171                 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
2172                 case 0:
2173                         return -EINVAL;
2174                 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
2175                         if (pf->flags & I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE)
2176                                 hena |=
2177                            BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK);
2178
2179                         hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP);
2180                         break;
2181                 default:
2182                         return -EINVAL;
2183                 }
2184                 break;
2185         case TCP_V6_FLOW:
2186                 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
2187                 case 0:
2188                         return -EINVAL;
2189                 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
2190                         if (pf->flags & I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE)
2191                                 hena |=
2192                            BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_TCP_SYN_NO_ACK);
2193
2194                         hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_TCP);
2195                         break;
2196                 default:
2197                         return -EINVAL;
2198                 }
2199                 break;
2200         case UDP_V4_FLOW:
2201                 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
2202                 case 0:
2203                         return -EINVAL;
2204                 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
2205                         if (pf->flags & I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE)
2206                                 hena |=
2207                             BIT_ULL(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV4_UDP) |
2208                             BIT_ULL(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV4_UDP);
2209
2210                         hena |= (BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_UDP) |
2211                                  BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4));
2212                         break;
2213                 default:
2214                         return -EINVAL;
2215                 }
2216                 break;
2217         case UDP_V6_FLOW:
2218                 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
2219                 case 0:
2220                         return -EINVAL;
2221                 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
2222                         if (pf->flags & I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE)
2223                                 hena |=
2224                             BIT_ULL(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV6_UDP) |
2225                             BIT_ULL(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV6_UDP);
2226
2227                         hena |= (BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_UDP) |
2228                                  BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6));
2229                         break;
2230                 default:
2231                         return -EINVAL;
2232                 }
2233                 break;
2234         case AH_ESP_V4_FLOW:
2235         case AH_V4_FLOW:
2236         case ESP_V4_FLOW:
2237         case SCTP_V4_FLOW:
2238                 if ((nfc->data & RXH_L4_B_0_1) ||
2239                     (nfc->data & RXH_L4_B_2_3))
2240                         return -EINVAL;
2241                 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER);
2242                 break;
2243         case AH_ESP_V6_FLOW:
2244         case AH_V6_FLOW:
2245         case ESP_V6_FLOW:
2246         case SCTP_V6_FLOW:
2247                 if ((nfc->data & RXH_L4_B_0_1) ||
2248                     (nfc->data & RXH_L4_B_2_3))
2249                         return -EINVAL;
2250                 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER);
2251                 break;
2252         case IPV4_FLOW:
2253                 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER) |
2254                         BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4);
2255                 break;
2256         case IPV6_FLOW:
2257                 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER) |
2258                         BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6);
2259                 break;
2260         default:
2261                 return -EINVAL;
2262         }
2263
2264         wr32(hw, I40E_PFQF_HENA(0), (u32)hena);
2265         wr32(hw, I40E_PFQF_HENA(1), (u32)(hena >> 32));
2266         i40e_flush(hw);
2267
2268         /* Save setting for future output/update */
2269         pf->vsi[pf->lan_vsi]->rxnfc = *nfc;
2270
2271         return 0;
2272 }
2273
2274 /**
2275  * i40e_match_fdir_input_set - Match a new filter against an existing one
2276  * @rule: The filter already added
2277  * @input: The new filter to comapre against
2278  *
2279  * Returns true if the two input set match
2280  **/
2281 static bool i40e_match_fdir_input_set(struct i40e_fdir_filter *rule,
2282                                       struct i40e_fdir_filter *input)
2283 {
2284         if ((rule->dst_ip[0] != input->dst_ip[0]) ||
2285             (rule->src_ip[0] != input->src_ip[0]) ||
2286             (rule->dst_port != input->dst_port) ||
2287             (rule->src_port != input->src_port))
2288                 return false;
2289         return true;
2290 }
2291
2292 /**
2293  * i40e_update_ethtool_fdir_entry - Updates the fdir filter entry
2294  * @vsi: Pointer to the targeted VSI
2295  * @input: The filter to update or NULL to indicate deletion
2296  * @sw_idx: Software index to the filter
2297  * @cmd: The command to get or set Rx flow classification rules
2298  *
2299  * This function updates (or deletes) a Flow Director entry from
2300  * the hlist of the corresponding PF
2301  *
2302  * Returns 0 on success
2303  **/
2304 static int i40e_update_ethtool_fdir_entry(struct i40e_vsi *vsi,
2305                                           struct i40e_fdir_filter *input,
2306                                           u16 sw_idx,
2307                                           struct ethtool_rxnfc *cmd)
2308 {
2309         struct i40e_fdir_filter *rule, *parent;
2310         struct i40e_pf *pf = vsi->back;
2311         struct hlist_node *node2;
2312         int err = -EINVAL;
2313
2314         parent = NULL;
2315         rule = NULL;
2316
2317         hlist_for_each_entry_safe(rule, node2,
2318                                   &pf->fdir_filter_list, fdir_node) {
2319                 /* hash found, or no matching entry */
2320                 if (rule->fd_id >= sw_idx)
2321                         break;
2322                 parent = rule;
2323         }
2324
2325         /* if there is an old rule occupying our place remove it */
2326         if (rule && (rule->fd_id == sw_idx)) {
2327                 if (input && !i40e_match_fdir_input_set(rule, input))
2328                         err = i40e_add_del_fdir(vsi, rule, false);
2329                 else if (!input)
2330                         err = i40e_add_del_fdir(vsi, rule, false);
2331                 hlist_del(&rule->fdir_node);
2332                 kfree(rule);
2333                 pf->fdir_pf_active_filters--;
2334         }
2335
2336         /* If no input this was a delete, err should be 0 if a rule was
2337          * successfully found and removed from the list else -EINVAL
2338          */
2339         if (!input)
2340                 return err;
2341
2342         /* initialize node and set software index */
2343         INIT_HLIST_NODE(&input->fdir_node);
2344
2345         /* add filter to the list */
2346         if (parent)
2347                 hlist_add_behind(&input->fdir_node, &parent->fdir_node);
2348         else
2349                 hlist_add_head(&input->fdir_node,
2350                                &pf->fdir_filter_list);
2351
2352         /* update counts */
2353         pf->fdir_pf_active_filters++;
2354
2355         return 0;
2356 }
2357
2358 /**
2359  * i40e_del_fdir_entry - Deletes a Flow Director filter entry
2360  * @vsi: Pointer to the targeted VSI
2361  * @cmd: The command to get or set Rx flow classification rules
2362  *
2363  * The function removes a Flow Director filter entry from the
2364  * hlist of the corresponding PF
2365  *
2366  * Returns 0 on success
2367  */
2368 static int i40e_del_fdir_entry(struct i40e_vsi *vsi,
2369                                struct ethtool_rxnfc *cmd)
2370 {
2371         struct ethtool_rx_flow_spec *fsp =
2372                 (struct ethtool_rx_flow_spec *)&cmd->fs;
2373         struct i40e_pf *pf = vsi->back;
2374         int ret = 0;
2375
2376         if (test_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state) ||
2377             test_bit(__I40E_RESET_INTR_RECEIVED, &pf->state))
2378                 return -EBUSY;
2379
2380         if (test_bit(__I40E_FD_FLUSH_REQUESTED, &pf->state))
2381                 return -EBUSY;
2382
2383         ret = i40e_update_ethtool_fdir_entry(vsi, NULL, fsp->location, cmd);
2384
2385         i40e_fdir_check_and_reenable(pf);
2386         return ret;
2387 }
2388
2389 /**
2390  * i40e_add_fdir_ethtool - Add/Remove Flow Director filters
2391  * @vsi: pointer to the targeted VSI
2392  * @cmd: command to get or set RX flow classification rules
2393  *
2394  * Add Flow Director filters for a specific flow spec based on their
2395  * protocol.  Returns 0 if the filters were successfully added.
2396  **/
2397 static int i40e_add_fdir_ethtool(struct i40e_vsi *vsi,
2398                                  struct ethtool_rxnfc *cmd)
2399 {
2400         struct ethtool_rx_flow_spec *fsp;
2401         struct i40e_fdir_filter *input;
2402         struct i40e_pf *pf;
2403         int ret = -EINVAL;
2404         u16 vf_id;
2405
2406         if (!vsi)
2407                 return -EINVAL;
2408
2409         pf = vsi->back;
2410
2411         if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED))
2412                 return -EOPNOTSUPP;
2413
2414         if (pf->auto_disable_flags & I40E_FLAG_FD_SB_ENABLED)
2415                 return -ENOSPC;
2416
2417         if (test_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state) ||
2418             test_bit(__I40E_RESET_INTR_RECEIVED, &pf->state))
2419                 return -EBUSY;
2420
2421         if (test_bit(__I40E_FD_FLUSH_REQUESTED, &pf->state))
2422                 return -EBUSY;
2423
2424         fsp = (struct ethtool_rx_flow_spec *)&cmd->fs;
2425
2426         if (fsp->location >= (pf->hw.func_caps.fd_filters_best_effort +
2427                               pf->hw.func_caps.fd_filters_guaranteed)) {
2428                 return -EINVAL;
2429         }
2430
2431         if ((fsp->ring_cookie != RX_CLS_FLOW_DISC) &&
2432             (fsp->ring_cookie >= vsi->num_queue_pairs))
2433                 return -EINVAL;
2434
2435         input = kzalloc(sizeof(*input), GFP_KERNEL);
2436
2437         if (!input)
2438                 return -ENOMEM;
2439
2440         input->fd_id = fsp->location;
2441
2442         if (fsp->ring_cookie == RX_CLS_FLOW_DISC)
2443                 input->dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET;
2444         else
2445                 input->dest_ctl =
2446                              I40E_FILTER_PROGRAM_DESC_DEST_DIRECT_PACKET_QINDEX;
2447
2448         input->q_index = fsp->ring_cookie;
2449         input->flex_off = 0;
2450         input->pctype = 0;
2451         input->dest_vsi = vsi->id;
2452         input->fd_status = I40E_FILTER_PROGRAM_DESC_FD_STATUS_FD_ID;
2453         input->cnt_index  = I40E_FD_SB_STAT_IDX(pf->hw.pf_id);
2454         input->flow_type = fsp->flow_type;
2455         input->ip4_proto = fsp->h_u.usr_ip4_spec.proto;
2456
2457         /* Reverse the src and dest notion, since the HW expects them to be from
2458          * Tx perspective where as the input from user is from Rx filter view.
2459          */
2460         input->dst_port = fsp->h_u.tcp_ip4_spec.psrc;
2461         input->src_port = fsp->h_u.tcp_ip4_spec.pdst;
2462         input->dst_ip[0] = fsp->h_u.tcp_ip4_spec.ip4src;
2463         input->src_ip[0] = fsp->h_u.tcp_ip4_spec.ip4dst;
2464
2465         if (ntohl(fsp->m_ext.data[1])) {
2466                 if (ntohl(fsp->h_ext.data[1]) >= pf->num_alloc_vfs) {
2467                         netif_info(pf, drv, vsi->netdev, "Invalid VF id\n");
2468                         goto free_input;
2469                 }
2470                 vf_id = ntohl(fsp->h_ext.data[1]);
2471                 /* Find vsi id from vf id and override dest vsi */
2472                 input->dest_vsi = pf->vf[vf_id].lan_vsi_id;
2473                 if (input->q_index >= pf->vf[vf_id].num_queue_pairs) {
2474                         netif_info(pf, drv, vsi->netdev, "Invalid queue id\n");
2475                         goto free_input;
2476                 }
2477         }
2478
2479         ret = i40e_add_del_fdir(vsi, input, true);
2480 free_input:
2481         if (ret)
2482                 kfree(input);
2483         else
2484                 i40e_update_ethtool_fdir_entry(vsi, input, fsp->location, NULL);
2485
2486         return ret;
2487 }
2488
2489 /**
2490  * i40e_set_rxnfc - command to set RX flow classification rules
2491  * @netdev: network interface device structure
2492  * @cmd: ethtool rxnfc command
2493  *
2494  * Returns Success if the command is supported.
2495  **/
2496 static int i40e_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd)
2497 {
2498         struct i40e_netdev_priv *np = netdev_priv(netdev);
2499         struct i40e_vsi *vsi = np->vsi;
2500         struct i40e_pf *pf = vsi->back;
2501         int ret = -EOPNOTSUPP;
2502
2503         switch (cmd->cmd) {
2504         case ETHTOOL_SRXFH:
2505                 ret = i40e_set_rss_hash_opt(pf, cmd);
2506                 break;
2507         case ETHTOOL_SRXCLSRLINS:
2508                 ret = i40e_add_fdir_ethtool(vsi, cmd);
2509                 break;
2510         case ETHTOOL_SRXCLSRLDEL:
2511                 ret = i40e_del_fdir_entry(vsi, cmd);
2512                 break;
2513         default:
2514                 break;
2515         }
2516
2517         return ret;
2518 }
2519
2520 /**
2521  * i40e_max_channels - get Max number of combined channels supported
2522  * @vsi: vsi pointer
2523  **/
2524 static unsigned int i40e_max_channels(struct i40e_vsi *vsi)
2525 {
2526         /* TODO: This code assumes DCB and FD is disabled for now. */
2527         return vsi->alloc_queue_pairs;
2528 }
2529
2530 /**
2531  * i40e_get_channels - Get the current channels enabled and max supported etc.
2532  * @netdev: network interface device structure
2533  * @ch: ethtool channels structure
2534  *
2535  * We don't support separate tx and rx queues as channels. The other count
2536  * represents how many queues are being used for control. max_combined counts
2537  * how many queue pairs we can support. They may not be mapped 1 to 1 with
2538  * q_vectors since we support a lot more queue pairs than q_vectors.
2539  **/
2540 static void i40e_get_channels(struct net_device *dev,
2541                                struct ethtool_channels *ch)
2542 {
2543         struct i40e_netdev_priv *np = netdev_priv(dev);
2544         struct i40e_vsi *vsi = np->vsi;
2545         struct i40e_pf *pf = vsi->back;
2546
2547         /* report maximum channels */
2548         ch->max_combined = i40e_max_channels(vsi);
2549
2550         /* report info for other vector */
2551         ch->other_count = (pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0;
2552         ch->max_other = ch->other_count;
2553
2554         /* Note: This code assumes DCB is disabled for now. */
2555         ch->combined_count = vsi->num_queue_pairs;
2556 }
2557
2558 /**
2559  * i40e_set_channels - Set the new channels count.
2560  * @netdev: network interface device structure
2561  * @ch: ethtool channels structure
2562  *
2563  * The new channels count may not be the same as requested by the user
2564  * since it gets rounded down to a power of 2 value.
2565  **/
2566 static int i40e_set_channels(struct net_device *dev,
2567                               struct ethtool_channels *ch)
2568 {
2569         struct i40e_netdev_priv *np = netdev_priv(dev);
2570         unsigned int count = ch->combined_count;
2571         struct i40e_vsi *vsi = np->vsi;
2572         struct i40e_pf *pf = vsi->back;
2573         int new_count;
2574
2575         /* We do not support setting channels for any other VSI at present */
2576         if (vsi->type != I40E_VSI_MAIN)
2577                 return -EINVAL;
2578
2579         /* verify they are not requesting separate vectors */
2580         if (!count || ch->rx_count || ch->tx_count)
2581                 return -EINVAL;
2582
2583         /* verify other_count has not changed */
2584         if (ch->other_count != ((pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0))
2585                 return -EINVAL;
2586
2587         /* verify the number of channels does not exceed hardware limits */
2588         if (count > i40e_max_channels(vsi))
2589                 return -EINVAL;
2590
2591         /* update feature limits from largest to smallest supported values */
2592         /* TODO: Flow director limit, DCB etc */
2593
2594         /* use rss_reconfig to rebuild with new queue count and update traffic
2595          * class queue mapping
2596          */
2597         new_count = i40e_reconfig_rss_queues(pf, count);
2598         if (new_count > 0)
2599                 return 0;
2600         else
2601                 return -EINVAL;
2602 }
2603
2604 /**
2605  * i40e_get_rxfh_key_size - get the RSS hash key size
2606  * @netdev: network interface device structure
2607  *
2608  * Returns the table size.
2609  **/
2610 static u32 i40e_get_rxfh_key_size(struct net_device *netdev)
2611 {
2612         return I40E_HKEY_ARRAY_SIZE;
2613 }
2614
2615 /**
2616  * i40e_get_rxfh_indir_size - get the rx flow hash indirection table size
2617  * @netdev: network interface device structure
2618  *
2619  * Returns the table size.
2620  **/
2621 static u32 i40e_get_rxfh_indir_size(struct net_device *netdev)
2622 {
2623         return I40E_HLUT_ARRAY_SIZE;
2624 }
2625
2626 static int i40e_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key,
2627                          u8 *hfunc)
2628 {
2629         struct i40e_netdev_priv *np = netdev_priv(netdev);
2630         struct i40e_vsi *vsi = np->vsi;
2631         u8 *lut, *seed = NULL;
2632         int ret;
2633         u16 i;
2634
2635         if (hfunc)
2636                 *hfunc = ETH_RSS_HASH_TOP;
2637
2638         if (!indir)
2639                 return 0;
2640
2641         seed = key;
2642         lut = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL);
2643         if (!lut)
2644                 return -ENOMEM;
2645         ret = i40e_get_rss(vsi, seed, lut, I40E_HLUT_ARRAY_SIZE);
2646         if (ret)
2647                 goto out;
2648         for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++)
2649                 indir[i] = (u32)(lut[i]);
2650
2651 out:
2652         kfree(lut);
2653
2654         return ret;
2655 }
2656
2657 /**
2658  * i40e_set_rxfh - set the rx flow hash indirection table
2659  * @netdev: network interface device structure
2660  * @indir: indirection table
2661  * @key: hash key
2662  *
2663  * Returns -EINVAL if the table specifies an invalid queue id, otherwise
2664  * returns 0 after programming the table.
2665  **/
2666 static int i40e_set_rxfh(struct net_device *netdev, const u32 *indir,
2667                          const u8 *key, const u8 hfunc)
2668 {
2669         struct i40e_netdev_priv *np = netdev_priv(netdev);
2670         struct i40e_vsi *vsi = np->vsi;
2671         u8 *seed = NULL;
2672         u16 i;
2673
2674         if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)
2675                 return -EOPNOTSUPP;
2676
2677         if (!indir)
2678                 return 0;
2679
2680         if (key) {
2681                 if (!vsi->rss_hkey_user) {
2682                         vsi->rss_hkey_user = kzalloc(I40E_HKEY_ARRAY_SIZE,
2683                                                      GFP_KERNEL);
2684                         if (!vsi->rss_hkey_user)
2685                                 return -ENOMEM;
2686                 }
2687                 memcpy(vsi->rss_hkey_user, key, I40E_HKEY_ARRAY_SIZE);
2688                 seed = vsi->rss_hkey_user;
2689         }
2690         if (!vsi->rss_lut_user) {
2691                 vsi->rss_lut_user = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL);
2692                 if (!vsi->rss_lut_user)
2693                         return -ENOMEM;
2694         }
2695
2696         /* Each 32 bits pointed by 'indir' is stored with a lut entry */
2697         for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++)
2698                 vsi->rss_lut_user[i] = (u8)(indir[i]);
2699
2700         return i40e_config_rss(vsi, seed, vsi->rss_lut_user,
2701                                I40E_HLUT_ARRAY_SIZE);
2702 }
2703
2704 /**
2705  * i40e_get_priv_flags - report device private flags
2706  * @dev: network interface device structure
2707  *
2708  * The get string set count and the string set should be matched for each
2709  * flag returned.  Add new strings for each flag to the i40e_priv_flags_strings
2710  * array.
2711  *
2712  * Returns a u32 bitmap of flags.
2713  **/
2714 static u32 i40e_get_priv_flags(struct net_device *dev)
2715 {
2716         struct i40e_netdev_priv *np = netdev_priv(dev);
2717         struct i40e_vsi *vsi = np->vsi;
2718         struct i40e_pf *pf = vsi->back;
2719         u32 ret_flags = 0;
2720
2721         ret_flags |= pf->hw.func_caps.npar_enable ?
2722                 I40E_PRIV_FLAGS_NPAR_FLAG : 0;
2723         ret_flags |= pf->flags & I40E_FLAG_LINK_POLLING_ENABLED ?
2724                 I40E_PRIV_FLAGS_LINKPOLL_FLAG : 0;
2725         ret_flags |= pf->flags & I40E_FLAG_FD_ATR_ENABLED ?
2726                 I40E_PRIV_FLAGS_FD_ATR : 0;
2727         ret_flags |= pf->flags & I40E_FLAG_VEB_STATS_ENABLED ?
2728                 I40E_PRIV_FLAGS_VEB_STATS : 0;
2729         ret_flags |= pf->flags & I40E_FLAG_RX_PS_ENABLED ?
2730                 I40E_PRIV_FLAGS_PS : 0;
2731
2732         return ret_flags;
2733 }
2734
2735 /**
2736  * i40e_set_priv_flags - set private flags
2737  * @dev: network interface device structure
2738  * @flags: bit flags to be set
2739  **/
2740 static int i40e_set_priv_flags(struct net_device *dev, u32 flags)
2741 {
2742         struct i40e_netdev_priv *np = netdev_priv(dev);
2743         struct i40e_vsi *vsi = np->vsi;
2744         struct i40e_pf *pf = vsi->back;
2745         bool reset_required = false;
2746
2747         /* NOTE: MFP is not settable */
2748
2749         /* allow the user to control the method of receive
2750          * buffer DMA, whether the packet is split at header
2751          * boundaries into two separate buffers.  In some cases
2752          * one routine or the other will perform better.
2753          */
2754         if ((flags & I40E_PRIV_FLAGS_PS) &&
2755             !(pf->flags & I40E_FLAG_RX_PS_ENABLED)) {
2756                 pf->flags |= I40E_FLAG_RX_PS_ENABLED;
2757                 pf->flags &= ~I40E_FLAG_RX_1BUF_ENABLED;
2758                 reset_required = true;
2759         } else if (!(flags & I40E_PRIV_FLAGS_PS) &&
2760                    (pf->flags & I40E_FLAG_RX_PS_ENABLED)) {
2761                 pf->flags &= ~I40E_FLAG_RX_PS_ENABLED;
2762                 pf->flags |= I40E_FLAG_RX_1BUF_ENABLED;
2763                 reset_required = true;
2764         }
2765
2766         if (flags & I40E_PRIV_FLAGS_LINKPOLL_FLAG)
2767                 pf->flags |= I40E_FLAG_LINK_POLLING_ENABLED;
2768         else
2769                 pf->flags &= ~I40E_FLAG_LINK_POLLING_ENABLED;
2770
2771         /* allow the user to control the state of the Flow
2772          * Director ATR (Application Targeted Routing) feature
2773          * of the driver
2774          */
2775         if (flags & I40E_PRIV_FLAGS_FD_ATR) {
2776                 pf->flags |= I40E_FLAG_FD_ATR_ENABLED;
2777         } else {
2778                 pf->flags &= ~I40E_FLAG_FD_ATR_ENABLED;
2779                 pf->auto_disable_flags |= I40E_FLAG_FD_ATR_ENABLED;
2780         }
2781
2782         if (flags & I40E_PRIV_FLAGS_VEB_STATS)
2783                 pf->flags |= I40E_FLAG_VEB_STATS_ENABLED;
2784         else
2785                 pf->flags &= ~I40E_FLAG_VEB_STATS_ENABLED;
2786
2787         /* if needed, issue reset to cause things to take effect */
2788         if (reset_required)
2789                 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED));
2790
2791         return 0;
2792 }
2793
2794 static const struct ethtool_ops i40e_ethtool_ops = {
2795         .get_settings           = i40e_get_settings,
2796         .set_settings           = i40e_set_settings,
2797         .get_drvinfo            = i40e_get_drvinfo,
2798         .get_regs_len           = i40e_get_regs_len,
2799         .get_regs               = i40e_get_regs,
2800         .nway_reset             = i40e_nway_reset,
2801         .get_link               = ethtool_op_get_link,
2802         .get_wol                = i40e_get_wol,
2803         .set_wol                = i40e_set_wol,
2804         .set_eeprom             = i40e_set_eeprom,
2805         .get_eeprom_len         = i40e_get_eeprom_len,
2806         .get_eeprom             = i40e_get_eeprom,
2807         .get_ringparam          = i40e_get_ringparam,
2808         .set_ringparam          = i40e_set_ringparam,
2809         .get_pauseparam         = i40e_get_pauseparam,
2810         .set_pauseparam         = i40e_set_pauseparam,
2811         .get_msglevel           = i40e_get_msglevel,
2812         .set_msglevel           = i40e_set_msglevel,
2813         .get_rxnfc              = i40e_get_rxnfc,
2814         .set_rxnfc              = i40e_set_rxnfc,
2815         .self_test              = i40e_diag_test,
2816         .get_strings            = i40e_get_strings,
2817         .set_phys_id            = i40e_set_phys_id,
2818         .get_sset_count         = i40e_get_sset_count,
2819         .get_ethtool_stats      = i40e_get_ethtool_stats,
2820         .get_coalesce           = i40e_get_coalesce,
2821         .set_coalesce           = i40e_set_coalesce,
2822         .get_rxfh_key_size      = i40e_get_rxfh_key_size,
2823         .get_rxfh_indir_size    = i40e_get_rxfh_indir_size,
2824         .get_rxfh               = i40e_get_rxfh,
2825         .set_rxfh               = i40e_set_rxfh,
2826         .get_channels           = i40e_get_channels,
2827         .set_channels           = i40e_set_channels,
2828         .get_ts_info            = i40e_get_ts_info,
2829         .get_priv_flags         = i40e_get_priv_flags,
2830         .set_priv_flags         = i40e_set_priv_flags,
2831 };
2832
2833 void i40e_set_ethtool_ops(struct net_device *netdev)
2834 {
2835         netdev->ethtool_ops = &i40e_ethtool_ops;
2836 }