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