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 };
  91
  92 static int i40e_add_fdir_ethtool(struct i40e_vsi *vsi,
  93                                  struct ethtool_rxnfc *cmd);
  94
  95 /* These PF_STATs might look like duplicates of some NETDEV_STATs,
  96  * but they are separate.  This device supports Virtualization, and
  97  * as such might have several netdevs supporting VMDq and FCoE going
  98  * through a single port.  The NETDEV_STATs are for individual netdevs
  99  * seen at the top of the stack, and the PF_STATs are for the physical
 100  * function at the bottom of the stack hosting those netdevs.
 101  *
 102  * The PF_STATs are appended to the netdev stats only when ethtool -S
 103  * is queried on the base PF netdev, not on the VMDq or FCoE netdev.
 104  */
 105 static struct i40e_stats i40e_gstrings_stats[] = {
 106         I40E_PF_STAT("rx_bytes", stats.eth.rx_bytes),
 107         I40E_PF_STAT("tx_bytes", stats.eth.tx_bytes),
 108         I40E_PF_STAT("rx_unicast", stats.eth.rx_unicast),
 109         I40E_PF_STAT("tx_unicast", stats.eth.tx_unicast),
 110         I40E_PF_STAT("rx_multicast", stats.eth.rx_multicast),
 111         I40E_PF_STAT("tx_multicast", stats.eth.tx_multicast),
 112         I40E_PF_STAT("rx_broadcast", stats.eth.rx_broadcast),
 113         I40E_PF_STAT("tx_broadcast", stats.eth.tx_broadcast),
 114         I40E_PF_STAT("tx_errors", stats.eth.tx_errors),
 115         I40E_PF_STAT("rx_dropped", stats.eth.rx_discards),
 116         I40E_PF_STAT("tx_dropped_link_down", stats.tx_dropped_link_down),
 117         I40E_PF_STAT("crc_errors", stats.crc_errors),
 118         I40E_PF_STAT("illegal_bytes", stats.illegal_bytes),
 119         I40E_PF_STAT("mac_local_faults", stats.mac_local_faults),
 120         I40E_PF_STAT("mac_remote_faults", stats.mac_remote_faults),
 121         I40E_PF_STAT("tx_timeout", tx_timeout_count),
 122         I40E_PF_STAT("rx_csum_bad", hw_csum_rx_error),
 123         I40E_PF_STAT("rx_length_errors", stats.rx_length_errors),
 124         I40E_PF_STAT("link_xon_rx", stats.link_xon_rx),
 125         I40E_PF_STAT("link_xoff_rx", stats.link_xoff_rx),
 126         I40E_PF_STAT("link_xon_tx", stats.link_xon_tx),
 127         I40E_PF_STAT("link_xoff_tx", stats.link_xoff_tx),
 128         I40E_PF_STAT("rx_size_64", stats.rx_size_64),
 129         I40E_PF_STAT("rx_size_127", stats.rx_size_127),
 130         I40E_PF_STAT("rx_size_255", stats.rx_size_255),
 131         I40E_PF_STAT("rx_size_511", stats.rx_size_511),
 132         I40E_PF_STAT("rx_size_1023", stats.rx_size_1023),
 133         I40E_PF_STAT("rx_size_1522", stats.rx_size_1522),
 134         I40E_PF_STAT("rx_size_big", stats.rx_size_big),
 135         I40E_PF_STAT("tx_size_64", stats.tx_size_64),
 136         I40E_PF_STAT("tx_size_127", stats.tx_size_127),
 137         I40E_PF_STAT("tx_size_255", stats.tx_size_255),
 138         I40E_PF_STAT("tx_size_511", stats.tx_size_511),
 139         I40E_PF_STAT("tx_size_1023", stats.tx_size_1023),
 140         I40E_PF_STAT("tx_size_1522", stats.tx_size_1522),
 141         I40E_PF_STAT("tx_size_big", stats.tx_size_big),
 142         I40E_PF_STAT("rx_undersize", stats.rx_undersize),
 143         I40E_PF_STAT("rx_fragments", stats.rx_fragments),
 144         I40E_PF_STAT("rx_oversize", stats.rx_oversize),
 145         I40E_PF_STAT("rx_jabber", stats.rx_jabber),
 146         I40E_PF_STAT("VF_admin_queue_requests", vf_aq_requests),
 147         I40E_PF_STAT("rx_hwtstamp_cleared", rx_hwtstamp_cleared),
 148         I40E_PF_STAT("fdir_flush_cnt", fd_flush_cnt),
 149         I40E_PF_STAT("fdir_atr_match", stats.fd_atr_match),
 150         I40E_PF_STAT("fdir_sb_match", stats.fd_sb_match),
 151
 152         /* LPI stats */
 153         I40E_PF_STAT("tx_lpi_status", stats.tx_lpi_status),
 154         I40E_PF_STAT("rx_lpi_status", stats.rx_lpi_status),
 155         I40E_PF_STAT("tx_lpi_count", stats.tx_lpi_count),
 156         I40E_PF_STAT("rx_lpi_count", stats.rx_lpi_count),
 157 };
 158
 159 #ifdef I40E_FCOE
 160 static const struct i40e_stats i40e_gstrings_fcoe_stats[] = {
 161         I40E_VSI_STAT("fcoe_bad_fccrc", fcoe_stats.fcoe_bad_fccrc),
 162         I40E_VSI_STAT("rx_fcoe_dropped", fcoe_stats.rx_fcoe_dropped),
 163         I40E_VSI_STAT("rx_fcoe_packets", fcoe_stats.rx_fcoe_packets),
 164         I40E_VSI_STAT("rx_fcoe_dwords", fcoe_stats.rx_fcoe_dwords),
 165         I40E_VSI_STAT("fcoe_ddp_count", fcoe_stats.fcoe_ddp_count),
 166         I40E_VSI_STAT("fcoe_last_error", fcoe_stats.fcoe_last_error),
 167         I40E_VSI_STAT("tx_fcoe_packets", fcoe_stats.tx_fcoe_packets),
 168         I40E_VSI_STAT("tx_fcoe_dwords", fcoe_stats.tx_fcoe_dwords),
 169 };
 170
 171 #endif /* I40E_FCOE */
 172 #define I40E_QUEUE_STATS_LEN(n) \
 173         (((struct i40e_netdev_priv *)netdev_priv((n)))->vsi->num_queue_pairs \
 174             * 2 /* Tx and Rx together */                                     \
 175             * (sizeof(struct i40e_queue_stats) / sizeof(u64)))
 176 #define I40E_GLOBAL_STATS_LEN   ARRAY_SIZE(i40e_gstrings_stats)
 177 #define I40E_NETDEV_STATS_LEN   ARRAY_SIZE(i40e_gstrings_net_stats)
 178 #define I40E_MISC_STATS_LEN     ARRAY_SIZE(i40e_gstrings_misc_stats)
 179 #ifdef I40E_FCOE
 180 #define I40E_FCOE_STATS_LEN     ARRAY_SIZE(i40e_gstrings_fcoe_stats)
 181 #define I40E_VSI_STATS_LEN(n)   (I40E_NETDEV_STATS_LEN + \
 182                                  I40E_FCOE_STATS_LEN + \
 183                                  I40E_MISC_STATS_LEN + \
 184                                  I40E_QUEUE_STATS_LEN((n)))
 185 #else
 186 #define I40E_VSI_STATS_LEN(n)   (I40E_NETDEV_STATS_LEN + \
 187                                  I40E_MISC_STATS_LEN + \
 188                                  I40E_QUEUE_STATS_LEN((n)))
 189 #endif /* I40E_FCOE */
 190 #define I40E_PFC_STATS_LEN ( \
 191                 (FIELD_SIZEOF(struct i40e_pf, stats.priority_xoff_rx) + \
 192                  FIELD_SIZEOF(struct i40e_pf, stats.priority_xon_rx) + \
 193                  FIELD_SIZEOF(struct i40e_pf, stats.priority_xoff_tx) + \
 194                  FIELD_SIZEOF(struct i40e_pf, stats.priority_xon_tx) + \
 195                  FIELD_SIZEOF(struct i40e_pf, stats.priority_xon_2_xoff)) \
 196                  / sizeof(u64))
 197 #define I40E_VEB_STATS_LEN      ARRAY_SIZE(i40e_gstrings_veb_stats)
 198 #define I40E_PF_STATS_LEN(n)    (I40E_GLOBAL_STATS_LEN + \
 199                                  I40E_PFC_STATS_LEN + \
 200                                  I40E_VSI_STATS_LEN((n)))
 201
 202 enum i40e_ethtool_test_id {
 203         I40E_ETH_TEST_REG = 0,
 204         I40E_ETH_TEST_EEPROM,
 205         I40E_ETH_TEST_INTR,
 206         I40E_ETH_TEST_LOOPBACK,
 207         I40E_ETH_TEST_LINK,
 208 };
 209
 210 static const char i40e_gstrings_test[][ETH_GSTRING_LEN] = {
 211         "Register test  (offline)",
 212         "Eeprom test    (offline)",
 213         "Interrupt test (offline)",
 214         "Loopback test  (offline)",
 215         "Link test   (on/offline)"
 216 };
 217
 218 #define I40E_TEST_LEN (sizeof(i40e_gstrings_test) / ETH_GSTRING_LEN)
 219
 220 static const char i40e_priv_flags_strings[][ETH_GSTRING_LEN] = {
 221         "NPAR",
 222 };
 223
 224 #define I40E_PRIV_FLAGS_STR_LEN \
 225         (sizeof(i40e_priv_flags_strings) / ETH_GSTRING_LEN)
 226
 227 /**
 228  * i40e_partition_setting_complaint - generic complaint for MFP restriction
 229  * @pf: the PF struct
 230  **/
 231 static void i40e_partition_setting_complaint(struct i40e_pf *pf)
 232 {
 233         dev_info(&pf->pdev->dev,
 234                  "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");
 235 }
 236
 237 /**
 238  * i40e_get_settings_link_up - Get the Link settings for when link is up
 239  * @hw: hw structure
 240  * @ecmd: ethtool command to fill in
 241  * @netdev: network interface device structure
 242  *
 243  **/
 244 static void i40e_get_settings_link_up(struct i40e_hw *hw,
 245                                       struct ethtool_cmd *ecmd,
 246                                       struct net_device *netdev)
 247 {
 248         struct i40e_link_status *hw_link_info = &hw->phy.link_info;
 249         u32 link_speed = hw_link_info->link_speed;
 250
 251         /* Initialize supported and advertised settings based on phy settings */
 252         switch (hw_link_info->phy_type) {
 253         case I40E_PHY_TYPE_40GBASE_CR4:
 254         case I40E_PHY_TYPE_40GBASE_CR4_CU:
 255                 ecmd->supported = SUPPORTED_Autoneg |
 256                                   SUPPORTED_40000baseCR4_Full;
 257                 ecmd->advertising = ADVERTISED_Autoneg |
 258                                     ADVERTISED_40000baseCR4_Full;
 259                 break;
 260         case I40E_PHY_TYPE_XLAUI:
 261         case I40E_PHY_TYPE_XLPPI:
 262         case I40E_PHY_TYPE_40GBASE_AOC:
 263                 ecmd->supported = SUPPORTED_40000baseCR4_Full;
 264                 break;
 265         case I40E_PHY_TYPE_40GBASE_KR4:
 266                 ecmd->supported = SUPPORTED_Autoneg |
 267                                   SUPPORTED_40000baseKR4_Full;
 268                 ecmd->advertising = ADVERTISED_Autoneg |
 269                                     ADVERTISED_40000baseKR4_Full;
 270                 break;
 271         case I40E_PHY_TYPE_40GBASE_SR4:
 272                 ecmd->supported = SUPPORTED_40000baseSR4_Full;
 273                 break;
 274         case I40E_PHY_TYPE_40GBASE_LR4:
 275                 ecmd->supported = SUPPORTED_40000baseLR4_Full;
 276                 break;
 277         case I40E_PHY_TYPE_20GBASE_KR2:
 278                 ecmd->supported = SUPPORTED_Autoneg |
 279                                   SUPPORTED_20000baseKR2_Full;
 280                 ecmd->advertising = ADVERTISED_Autoneg |
 281                                     ADVERTISED_20000baseKR2_Full;
 282                 break;
 283         case I40E_PHY_TYPE_10GBASE_KX4:
 284                 ecmd->supported = SUPPORTED_Autoneg |
 285                                   SUPPORTED_10000baseKX4_Full;
 286                 ecmd->advertising = ADVERTISED_Autoneg |
 287                                     ADVERTISED_10000baseKX4_Full;
 288                 break;
 289         case I40E_PHY_TYPE_10GBASE_KR:
 290                 ecmd->supported = SUPPORTED_Autoneg |
 291                                   SUPPORTED_10000baseKR_Full;
 292                 ecmd->advertising = ADVERTISED_Autoneg |
 293                                     ADVERTISED_10000baseKR_Full;
 294                 break;
 295         case I40E_PHY_TYPE_10GBASE_SR:
 296         case I40E_PHY_TYPE_10GBASE_LR:
 297         case I40E_PHY_TYPE_1000BASE_SX:
 298         case I40E_PHY_TYPE_1000BASE_LX:
 299                 ecmd->supported = SUPPORTED_10000baseT_Full |
 300                                   SUPPORTED_1000baseT_Full;
 301                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 302                         ecmd->advertising |= ADVERTISED_10000baseT_Full;
 303                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 304                         ecmd->advertising |= ADVERTISED_1000baseT_Full;
 305                 break;
 306         case I40E_PHY_TYPE_1000BASE_KX:
 307                 ecmd->supported = SUPPORTED_Autoneg |
 308                                   SUPPORTED_1000baseKX_Full;
 309                 ecmd->advertising = ADVERTISED_Autoneg |
 310                                     ADVERTISED_1000baseKX_Full;
 311                 break;
 312         case I40E_PHY_TYPE_10GBASE_T:
 313         case I40E_PHY_TYPE_1000BASE_T:
 314         case I40E_PHY_TYPE_100BASE_TX:
 315                 ecmd->supported = SUPPORTED_Autoneg |
 316                                   SUPPORTED_10000baseT_Full |
 317                                   SUPPORTED_1000baseT_Full |
 318                                   SUPPORTED_100baseT_Full;
 319                 ecmd->advertising = ADVERTISED_Autoneg;
 320                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 321                         ecmd->advertising |= ADVERTISED_10000baseT_Full;
 322                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 323                         ecmd->advertising |= ADVERTISED_1000baseT_Full;
 324                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB)
 325                         ecmd->advertising |= ADVERTISED_100baseT_Full;
 326                 break;
 327         case I40E_PHY_TYPE_10GBASE_CR1_CU:
 328         case I40E_PHY_TYPE_10GBASE_CR1:
 329                 ecmd->supported = SUPPORTED_Autoneg |
 330                                   SUPPORTED_10000baseT_Full;
 331                 ecmd->advertising = ADVERTISED_Autoneg |
 332                                     ADVERTISED_10000baseT_Full;
 333                 break;
 334         case I40E_PHY_TYPE_XAUI:
 335         case I40E_PHY_TYPE_XFI:
 336         case I40E_PHY_TYPE_SFI:
 337         case I40E_PHY_TYPE_10GBASE_SFPP_CU:
 338         case I40E_PHY_TYPE_10GBASE_AOC:
 339                 ecmd->supported = SUPPORTED_10000baseT_Full;
 340                 break;
 341         case I40E_PHY_TYPE_SGMII:
 342                 ecmd->supported = SUPPORTED_Autoneg |
 343                                   SUPPORTED_1000baseT_Full |
 344                                   SUPPORTED_100baseT_Full;
 345                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 346                         ecmd->advertising |= ADVERTISED_1000baseT_Full;
 347                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB)
 348                         ecmd->advertising |= ADVERTISED_100baseT_Full;
 349                 break;
 350         default:
 351                 /* if we got here and link is up something bad is afoot */
 352                 netdev_info(netdev, "WARNING: Link is up but PHY type 0x%x is not recognized.\n",
 353                             hw_link_info->phy_type);
 354         }
 355
 356         /* Set speed and duplex */
 357         switch (link_speed) {
 358         case I40E_LINK_SPEED_40GB:
 359                 ethtool_cmd_speed_set(ecmd, SPEED_40000);
 360                 break;
 361         case I40E_LINK_SPEED_20GB:
 362                 ethtool_cmd_speed_set(ecmd, SPEED_20000);
 363                 break;
 364         case I40E_LINK_SPEED_10GB:
 365                 ethtool_cmd_speed_set(ecmd, SPEED_10000);
 366                 break;
 367         case I40E_LINK_SPEED_1GB:
 368                 ethtool_cmd_speed_set(ecmd, SPEED_1000);
 369                 break;
 370         case I40E_LINK_SPEED_100MB:
 371                 ethtool_cmd_speed_set(ecmd, SPEED_100);
 372                 break;
 373         default:
 374                 break;
 375         }
 376         ecmd->duplex = DUPLEX_FULL;
 377 }
 378
 379 /**
 380  * i40e_get_settings_link_down - Get the Link settings for when link is down
 381  * @hw: hw structure
 382  * @ecmd: ethtool command to fill in
 383  *
 384  * Reports link settings that can be determined when link is down
 385  **/
 386 static void i40e_get_settings_link_down(struct i40e_hw *hw,
 387                                         struct ethtool_cmd *ecmd)
 388 {
 389         struct i40e_link_status *hw_link_info = &hw->phy.link_info;
 390
 391         /* link is down and the driver needs to fall back on
 392          * device ID to determine what kinds of info to display,
 393          * it's mostly a guess that may change when link is up
 394          */
 395         switch (hw->device_id) {
 396         case I40E_DEV_ID_QSFP_A:
 397         case I40E_DEV_ID_QSFP_B:
 398         case I40E_DEV_ID_QSFP_C:
 399                 /* pluggable QSFP */
 400                 ecmd->supported = SUPPORTED_40000baseSR4_Full |
 401                                   SUPPORTED_40000baseCR4_Full |
 402                                   SUPPORTED_40000baseLR4_Full;
 403                 ecmd->advertising = ADVERTISED_40000baseSR4_Full |
 404                                     ADVERTISED_40000baseCR4_Full |
 405                                     ADVERTISED_40000baseLR4_Full;
 406                 break;
 407         case I40E_DEV_ID_KX_B:
 408                 /* backplane 40G */
 409                 ecmd->supported = SUPPORTED_40000baseKR4_Full;
 410                 ecmd->advertising = ADVERTISED_40000baseKR4_Full;
 411                 break;
 412         case I40E_DEV_ID_KX_C:
 413                 /* backplane 10G */
 414                 ecmd->supported = SUPPORTED_10000baseKR_Full;
 415                 ecmd->advertising = ADVERTISED_10000baseKR_Full;
 416                 break;
 417         case I40E_DEV_ID_10G_BASE_T:
 418                 ecmd->supported = SUPPORTED_10000baseT_Full |
 419                                   SUPPORTED_1000baseT_Full |
 420                                   SUPPORTED_100baseT_Full;
 421                 /* Figure out what has been requested */
 422                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 423                         ecmd->advertising |= ADVERTISED_10000baseT_Full;
 424                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 425                         ecmd->advertising |= ADVERTISED_1000baseT_Full;
 426                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB)
 427                         ecmd->advertising |= ADVERTISED_100baseT_Full;
 428                 break;
 429         case I40E_DEV_ID_20G_KR2:
 430                 /* backplane 20G */
 431                 ecmd->supported = SUPPORTED_20000baseKR2_Full;
 432                 ecmd->advertising = ADVERTISED_20000baseKR2_Full;
 433                 break;
 434         default:
 435                 /* all the rest are 10G/1G */
 436                 ecmd->supported = SUPPORTED_10000baseT_Full |
 437                                   SUPPORTED_1000baseT_Full;
 438                 /* Figure out what has been requested */
 439                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 440                         ecmd->advertising |= ADVERTISED_10000baseT_Full;
 441                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 442                         ecmd->advertising |= ADVERTISED_1000baseT_Full;
 443                 break;
 444         }
 445
 446         /* With no link speed and duplex are unknown */
 447         ethtool_cmd_speed_set(ecmd, SPEED_UNKNOWN);
 448         ecmd->duplex = DUPLEX_UNKNOWN;
 449 }
 450
 451 /**
 452  * i40e_get_settings - Get Link Speed and Duplex settings
 453  * @netdev: network interface device structure
 454  * @ecmd: ethtool command
 455  *
 456  * Reports speed/duplex settings based on media_type
 457  **/
 458 static int i40e_get_settings(struct net_device *netdev,
 459                              struct ethtool_cmd *ecmd)
 460 {
 461         struct i40e_netdev_priv *np = netdev_priv(netdev);
 462         struct i40e_pf *pf = np->vsi->back;
 463         struct i40e_hw *hw = &pf->hw;
 464         struct i40e_link_status *hw_link_info = &hw->phy.link_info;
 465         bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP;
 466
 467         if (link_up)
 468                 i40e_get_settings_link_up(hw, ecmd, netdev);
 469         else
 470                 i40e_get_settings_link_down(hw, ecmd);
 471
 472         /* Now set the settings that don't rely on link being up/down */
 473
 474         /* Set autoneg settings */
 475         ecmd->autoneg = ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
 476                           AUTONEG_ENABLE : AUTONEG_DISABLE);
 477
 478         switch (hw->phy.media_type) {
 479         case I40E_MEDIA_TYPE_BACKPLANE:
 480                 ecmd->supported |= SUPPORTED_Autoneg |
 481                                    SUPPORTED_Backplane;
 482                 ecmd->advertising |= ADVERTISED_Autoneg |
 483                                      ADVERTISED_Backplane;
 484                 ecmd->port = PORT_NONE;
 485                 break;
 486         case I40E_MEDIA_TYPE_BASET:
 487                 ecmd->supported |= SUPPORTED_TP;
 488                 ecmd->advertising |= ADVERTISED_TP;
 489                 ecmd->port = PORT_TP;
 490                 break;
 491         case I40E_MEDIA_TYPE_DA:
 492         case I40E_MEDIA_TYPE_CX4:
 493                 ecmd->supported |= SUPPORTED_FIBRE;
 494                 ecmd->advertising |= ADVERTISED_FIBRE;
 495                 ecmd->port = PORT_DA;
 496                 break;
 497         case I40E_MEDIA_TYPE_FIBER:
 498                 ecmd->supported |= SUPPORTED_FIBRE;
 499                 ecmd->port = PORT_FIBRE;
 500                 break;
 501         case I40E_MEDIA_TYPE_UNKNOWN:
 502         default:
 503                 ecmd->port = PORT_OTHER;
 504                 break;
 505         }
 506
 507         /* Set transceiver */
 508         ecmd->transceiver = XCVR_EXTERNAL;
 509
 510         /* Set flow control settings */
 511         ecmd->supported |= SUPPORTED_Pause;
 512
 513         switch (hw->fc.requested_mode) {
 514         case I40E_FC_FULL:
 515                 ecmd->advertising |= ADVERTISED_Pause;
 516                 break;
 517         case I40E_FC_TX_PAUSE:
 518                 ecmd->advertising |= ADVERTISED_Asym_Pause;
 519                 break;
 520         case I40E_FC_RX_PAUSE:
 521                 ecmd->advertising |= (ADVERTISED_Pause |
 522                                       ADVERTISED_Asym_Pause);
 523                 break;
 524         default:
 525                 ecmd->advertising &= ~(ADVERTISED_Pause |
 526                                        ADVERTISED_Asym_Pause);
 527                 break;
 528         }
 529
 530         return 0;
 531 }
 532
 533 /**
 534  * i40e_set_settings - Set Speed and Duplex
 535  * @netdev: network interface device structure
 536  * @ecmd: ethtool command
 537  *
 538  * Set speed/duplex per media_types advertised/forced
 539  **/
 540 static int i40e_set_settings(struct net_device *netdev,
 541                              struct ethtool_cmd *ecmd)
 542 {
 543         struct i40e_netdev_priv *np = netdev_priv(netdev);
 544         struct i40e_aq_get_phy_abilities_resp abilities;
 545         struct i40e_aq_set_phy_config config;
 546         struct i40e_pf *pf = np->vsi->back;
 547         struct i40e_vsi *vsi = np->vsi;
 548         struct i40e_hw *hw = &pf->hw;
 549         struct ethtool_cmd safe_ecmd;
 550         i40e_status status = 0;
 551         bool change = false;
 552         int err = 0;
 553         u8 autoneg;
 554         u32 advertise;
 555
 556         /* Changing port settings is not supported if this isn't the
 557          * port's controlling PF
 558          */
 559         if (hw->partition_id != 1) {
 560                 i40e_partition_setting_complaint(pf);
 561                 return -EOPNOTSUPP;
 562         }
 563
 564         if (vsi != pf->vsi[pf->lan_vsi])
 565                 return -EOPNOTSUPP;
 566
 567         if (hw->phy.media_type != I40E_MEDIA_TYPE_BASET &&
 568             hw->phy.media_type != I40E_MEDIA_TYPE_FIBER &&
 569             hw->phy.media_type != I40E_MEDIA_TYPE_BACKPLANE &&
 570             hw->phy.link_info.link_info & I40E_AQ_LINK_UP)
 571                 return -EOPNOTSUPP;
 572
 573         /* get our own copy of the bits to check against */
 574         memset(&safe_ecmd, 0, sizeof(struct ethtool_cmd));
 575         i40e_get_settings(netdev, &safe_ecmd);
 576
 577         /* save autoneg and speed out of ecmd */
 578         autoneg = ecmd->autoneg;
 579         advertise = ecmd->advertising;
 580
 581         /* set autoneg and speed back to what they currently are */
 582         ecmd->autoneg = safe_ecmd.autoneg;
 583         ecmd->advertising = safe_ecmd.advertising;
 584
 585         ecmd->cmd = safe_ecmd.cmd;
 586         /* If ecmd and safe_ecmd are not the same now, then they are
 587          * trying to set something that we do not support
 588          */
 589         if (memcmp(ecmd, &safe_ecmd, sizeof(struct ethtool_cmd)))
 590                 return -EOPNOTSUPP;
 591
 592         while (test_bit(__I40E_CONFIG_BUSY, &vsi->state))
 593                 usleep_range(1000, 2000);
 594
 595         /* Get the current phy config */
 596         status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities,
 597                                               NULL);
 598         if (status)
 599                 return -EAGAIN;
 600
 601         /* Copy abilities to config in case autoneg is not
 602          * set below
 603          */
 604         memset(&config, 0, sizeof(struct i40e_aq_set_phy_config));
 605         config.abilities = abilities.abilities;
 606
 607         /* Check autoneg */
 608         if (autoneg == AUTONEG_ENABLE) {
 609                 /* If autoneg is not supported, return error */
 610                 if (!(safe_ecmd.supported & SUPPORTED_Autoneg)) {
 611                         netdev_info(netdev, "Autoneg not supported on this phy\n");
 612                         return -EINVAL;
 613                 }
 614                 /* If autoneg was not already enabled */
 615                 if (!(hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED)) {
 616                         config.abilities = abilities.abilities |
 617                                            I40E_AQ_PHY_ENABLE_AN;
 618                         change = true;
 619                 }
 620         } else {
 621                 /* If autoneg is supported 10GBASE_T is the only phy that
 622                  * can disable it, so otherwise return error
 623                  */
 624                 if (safe_ecmd.supported & SUPPORTED_Autoneg &&
 625                     hw->phy.link_info.phy_type != I40E_PHY_TYPE_10GBASE_T) {
 626                         netdev_info(netdev, "Autoneg cannot be disabled on this phy\n");
 627                         return -EINVAL;
 628                 }
 629                 /* If autoneg is currently enabled */
 630                 if (hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED) {
 631                         config.abilities = abilities.abilities &
 632                                            ~I40E_AQ_PHY_ENABLE_AN;
 633                         change = true;
 634                 }
 635         }
 636
 637         if (advertise & ~safe_ecmd.supported)
 638                 return -EINVAL;
 639
 640         if (advertise & ADVERTISED_100baseT_Full)
 641                 config.link_speed |= I40E_LINK_SPEED_100MB;
 642         if (advertise & ADVERTISED_1000baseT_Full ||
 643             advertise & ADVERTISED_1000baseKX_Full)
 644                 config.link_speed |= I40E_LINK_SPEED_1GB;
 645         if (advertise & ADVERTISED_10000baseT_Full ||
 646             advertise & ADVERTISED_10000baseKX4_Full ||
 647             advertise & ADVERTISED_10000baseKR_Full)
 648                 config.link_speed |= I40E_LINK_SPEED_10GB;
 649         if (advertise & ADVERTISED_20000baseKR2_Full)
 650                 config.link_speed |= I40E_LINK_SPEED_20GB;
 651         if (advertise & ADVERTISED_40000baseKR4_Full ||
 652             advertise & ADVERTISED_40000baseCR4_Full ||
 653             advertise & ADVERTISED_40000baseSR4_Full ||
 654             advertise & ADVERTISED_40000baseLR4_Full)
 655                 config.link_speed |= I40E_LINK_SPEED_40GB;
 656
 657         if (change || (abilities.link_speed != config.link_speed)) {
 658                 /* copy over the rest of the abilities */
 659                 config.phy_type = abilities.phy_type;
 660                 config.eee_capability = abilities.eee_capability;
 661                 config.eeer = abilities.eeer_val;
 662                 config.low_power_ctrl = abilities.d3_lpan;
 663
 664                 /* save the requested speeds */
 665                 hw->phy.link_info.requested_speeds = config.link_speed;
 666                 /* set link and auto negotiation so changes take effect */
 667                 config.abilities |= I40E_AQ_PHY_ENABLE_ATOMIC_LINK;
 668                 /* If link is up put link down */
 669                 if (hw->phy.link_info.link_info & I40E_AQ_LINK_UP) {
 670                         /* Tell the OS link is going down, the link will go
 671                          * back up when fw says it is ready asynchronously
 672                          */
 673                         netdev_info(netdev, "PHY settings change requested, NIC Link is going down.\n");
 674                         netif_carrier_off(netdev);
 675                         netif_tx_stop_all_queues(netdev);
 676                 }
 677
 678                 /* make the aq call */
 679                 status = i40e_aq_set_phy_config(hw, &config, NULL);
 680                 if (status) {
 681                         netdev_info(netdev, "Set phy config failed with error %d.\n",
 682                                     status);
 683                         return -EAGAIN;
 684                 }
 685
 686                 status = i40e_aq_get_link_info(hw, true, NULL, NULL);
 687                 if (status)
 688                         netdev_info(netdev, "Updating link info failed with error %d\n",
 689                                     status);
 690
 691         } else {
 692                 netdev_info(netdev, "Nothing changed, exiting without setting anything.\n");
 693         }
 694
 695         return err;
 696 }
 697
 698 static int i40e_nway_reset(struct net_device *netdev)
 699 {
 700         /* restart autonegotiation */
 701         struct i40e_netdev_priv *np = netdev_priv(netdev);
 702         struct i40e_pf *pf = np->vsi->back;
 703         struct i40e_hw *hw = &pf->hw;
 704         bool link_up = hw->phy.link_info.link_info & I40E_AQ_LINK_UP;
 705         i40e_status ret = 0;
 706
 707         ret = i40e_aq_set_link_restart_an(hw, link_up, NULL);
 708         if (ret) {
 709                 netdev_info(netdev, "link restart failed, aq_err=%d\n",
 710                             pf->hw.aq.asq_last_status);
 711                 return -EIO;
 712         }
 713
 714         return 0;
 715 }
 716
 717 /**
 718  * i40e_get_pauseparam -  Get Flow Control status
 719  * Return tx/rx-pause status
 720  **/
 721 static void i40e_get_pauseparam(struct net_device *netdev,
 722                                 struct ethtool_pauseparam *pause)
 723 {
 724         struct i40e_netdev_priv *np = netdev_priv(netdev);
 725         struct i40e_pf *pf = np->vsi->back;
 726         struct i40e_hw *hw = &pf->hw;
 727         struct i40e_link_status *hw_link_info = &hw->phy.link_info;
 728         struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config;
 729
 730         pause->autoneg =
 731                 ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
 732                   AUTONEG_ENABLE : AUTONEG_DISABLE);
 733
 734         /* PFC enabled so report LFC as off */
 735         if (dcbx_cfg->pfc.pfcenable) {
 736                 pause->rx_pause = 0;
 737                 pause->tx_pause = 0;
 738                 return;
 739         }
 740
 741         if (hw->fc.current_mode == I40E_FC_RX_PAUSE) {
 742                 pause->rx_pause = 1;
 743         } else if (hw->fc.current_mode == I40E_FC_TX_PAUSE) {
 744                 pause->tx_pause = 1;
 745         } else if (hw->fc.current_mode == I40E_FC_FULL) {
 746                 pause->rx_pause = 1;
 747                 pause->tx_pause = 1;
 748         }
 749 }
 750
 751 /**
 752  * i40e_set_pauseparam - Set Flow Control parameter
 753  * @netdev: network interface device structure
 754  * @pause: return tx/rx flow control status
 755  **/
 756 static int i40e_set_pauseparam(struct net_device *netdev,
 757                                struct ethtool_pauseparam *pause)
 758 {
 759         struct i40e_netdev_priv *np = netdev_priv(netdev);
 760         struct i40e_pf *pf = np->vsi->back;
 761         struct i40e_vsi *vsi = np->vsi;
 762         struct i40e_hw *hw = &pf->hw;
 763         struct i40e_link_status *hw_link_info = &hw->phy.link_info;
 764         struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config;
 765         bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP;
 766         i40e_status status;
 767         u8 aq_failures;
 768         int err = 0;
 769
 770         /* Changing the port's flow control is not supported if this isn't the
 771          * port's controlling PF
 772          */
 773         if (hw->partition_id != 1) {
 774                 i40e_partition_setting_complaint(pf);
 775                 return -EOPNOTSUPP;
 776         }
 777
 778         if (vsi != pf->vsi[pf->lan_vsi])
 779                 return -EOPNOTSUPP;
 780
 781         if (pause->autoneg != ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
 782             AUTONEG_ENABLE : AUTONEG_DISABLE)) {
 783                 netdev_info(netdev, "To change autoneg please use: ethtool -s <dev> autoneg <on|off>\n");
 784                 return -EOPNOTSUPP;
 785         }
 786
 787         /* If we have link and don't have autoneg */
 788         if (!test_bit(__I40E_DOWN, &pf->state) &&
 789             !(hw_link_info->an_info & I40E_AQ_AN_COMPLETED)) {
 790                 /* Send message that it might not necessarily work*/
 791                 netdev_info(netdev, "Autoneg did not complete so changing settings may not result in an actual change.\n");
 792         }
 793
 794         if (dcbx_cfg->pfc.pfcenable) {
 795                 netdev_info(netdev,
 796                             "Priority flow control enabled. Cannot set link flow control.\n");
 797                 return -EOPNOTSUPP;
 798         }
 799
 800         if (pause->rx_pause && pause->tx_pause)
 801                 hw->fc.requested_mode = I40E_FC_FULL;
 802         else if (pause->rx_pause && !pause->tx_pause)
 803                 hw->fc.requested_mode = I40E_FC_RX_PAUSE;
 804         else if (!pause->rx_pause && pause->tx_pause)
 805                 hw->fc.requested_mode = I40E_FC_TX_PAUSE;
 806         else if (!pause->rx_pause && !pause->tx_pause)
 807                 hw->fc.requested_mode = I40E_FC_NONE;
 808         else
 809                  return -EINVAL;
 810
 811         /* Tell the OS link is going down, the link will go back up when fw
 812          * says it is ready asynchronously
 813          */
 814         netdev_info(netdev, "Flow control settings change requested, NIC Link is going down.\n");
 815         netif_carrier_off(netdev);
 816         netif_tx_stop_all_queues(netdev);
 817
 818         /* Set the fc mode and only restart an if link is up*/
 819         status = i40e_set_fc(hw, &aq_failures, link_up);
 820
 821         if (aq_failures & I40E_SET_FC_AQ_FAIL_GET) {
 822                 netdev_info(netdev, "Set fc failed on the get_phy_capabilities call with error %d and status %d\n",
 823                             status, hw->aq.asq_last_status);
 824                 err = -EAGAIN;
 825         }
 826         if (aq_failures & I40E_SET_FC_AQ_FAIL_SET) {
 827                 netdev_info(netdev, "Set fc failed on the set_phy_config call with error %d and status %d\n",
 828                             status, hw->aq.asq_last_status);
 829                 err = -EAGAIN;
 830         }
 831         if (aq_failures & I40E_SET_FC_AQ_FAIL_UPDATE) {
 832                 netdev_info(netdev, "Set fc failed on the get_link_info call with error %d and status %d\n",
 833                             status, hw->aq.asq_last_status);
 834                 err = -EAGAIN;
 835         }
 836
 837         if (!test_bit(__I40E_DOWN, &pf->state)) {
 838                 /* Give it a little more time to try to come back */
 839                 msleep(75);
 840                 if (!test_bit(__I40E_DOWN, &pf->state))
 841                         return i40e_nway_reset(netdev);
 842         }
 843
 844         return err;
 845 }
 846
 847 static u32 i40e_get_msglevel(struct net_device *netdev)
 848 {
 849         struct i40e_netdev_priv *np = netdev_priv(netdev);
 850         struct i40e_pf *pf = np->vsi->back;
 851
 852         return pf->msg_enable;
 853 }
 854
 855 static void i40e_set_msglevel(struct net_device *netdev, u32 data)
 856 {
 857         struct i40e_netdev_priv *np = netdev_priv(netdev);
 858         struct i40e_pf *pf = np->vsi->back;
 859
 860         if (I40E_DEBUG_USER & data)
 861                 pf->hw.debug_mask = data;
 862         pf->msg_enable = data;
 863 }
 864
 865 static int i40e_get_regs_len(struct net_device *netdev)
 866 {
 867         int reg_count = 0;
 868         int i;
 869
 870         for (i = 0; i40e_reg_list[i].offset != 0; i++)
 871                 reg_count += i40e_reg_list[i].elements;
 872
 873         return reg_count * sizeof(u32);
 874 }
 875
 876 static void i40e_get_regs(struct net_device *netdev, struct ethtool_regs *regs,
 877                           void *p)
 878 {
 879         struct i40e_netdev_priv *np = netdev_priv(netdev);
 880         struct i40e_pf *pf = np->vsi->back;
 881         struct i40e_hw *hw = &pf->hw;
 882         u32 *reg_buf = p;
 883         int i, j, ri;
 884         u32 reg;
 885
 886         /* Tell ethtool which driver-version-specific regs output we have.
 887          *
 888          * At some point, if we have ethtool doing special formatting of
 889          * this data, it will rely on this version number to know how to
 890          * interpret things.  Hence, this needs to be updated if/when the
 891          * diags register table is changed.
 892          */
 893         regs->version = 1;
 894
 895         /* loop through the diags reg table for what to print */
 896         ri = 0;
 897         for (i = 0; i40e_reg_list[i].offset != 0; i++) {
 898                 for (j = 0; j < i40e_reg_list[i].elements; j++) {
 899                         reg = i40e_reg_list[i].offset
 900                                 + (j * i40e_reg_list[i].stride);
 901                         reg_buf[ri++] = rd32(hw, reg);
 902                 }
 903         }
 904
 905 }
 906
 907 static int i40e_get_eeprom(struct net_device *netdev,
 908                            struct ethtool_eeprom *eeprom, u8 *bytes)
 909 {
 910         struct i40e_netdev_priv *np = netdev_priv(netdev);
 911         struct i40e_hw *hw = &np->vsi->back->hw;
 912         struct i40e_pf *pf = np->vsi->back;
 913         int ret_val = 0, len, offset;
 914         u8 *eeprom_buff;
 915         u16 i, sectors;
 916         bool last;
 917         u32 magic;
 918
 919 #define I40E_NVM_SECTOR_SIZE  4096
 920         if (eeprom->len == 0)
 921                 return -EINVAL;
 922
 923         /* check for NVMUpdate access method */
 924         magic = hw->vendor_id | (hw->device_id << 16);
 925         if (eeprom->magic && eeprom->magic != magic) {
 926                 struct i40e_nvm_access *cmd;
 927                 int errno;
 928
 929                 /* make sure it is the right magic for NVMUpdate */
 930                 if ((eeprom->magic >> 16) != hw->device_id)
 931                         return -EINVAL;
 932
 933                 cmd = (struct i40e_nvm_access *)eeprom;
 934                 ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno);
 935                 if (ret_val &&
 936                     ((hw->aq.asq_last_status != I40E_AQ_RC_EACCES) ||
 937                      (hw->debug_mask & I40E_DEBUG_NVM)))
 938                         dev_info(&pf->pdev->dev,
 939                                  "NVMUpdate read failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n",
 940                                  ret_val, hw->aq.asq_last_status, errno,
 941                                  (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK),
 942                                  cmd->offset, cmd->data_size);
 943
 944                 return errno;
 945         }
 946
 947         /* normal ethtool get_eeprom support */
 948         eeprom->magic = hw->vendor_id | (hw->device_id << 16);
 949
 950         eeprom_buff = kzalloc(eeprom->len, GFP_KERNEL);
 951         if (!eeprom_buff)
 952                 return -ENOMEM;
 953
 954         ret_val = i40e_acquire_nvm(hw, I40E_RESOURCE_READ);
 955         if (ret_val) {
 956                 dev_info(&pf->pdev->dev,
 957                          "Failed Acquiring NVM resource for read err=%d status=0x%x\n",
 958                          ret_val, hw->aq.asq_last_status);
 959                 goto free_buff;
 960         }
 961
 962         sectors = eeprom->len / I40E_NVM_SECTOR_SIZE;
 963         sectors += (eeprom->len % I40E_NVM_SECTOR_SIZE) ? 1 : 0;
 964         len = I40E_NVM_SECTOR_SIZE;
 965         last = false;
 966         for (i = 0; i < sectors; i++) {
 967                 if (i == (sectors - 1)) {
 968                         len = eeprom->len - (I40E_NVM_SECTOR_SIZE * i);
 969                         last = true;
 970                 }
 971                 offset = eeprom->offset + (I40E_NVM_SECTOR_SIZE * i),
 972                 ret_val = i40e_aq_read_nvm(hw, 0x0, offset, len,
 973                                 (u8 *)eeprom_buff + (I40E_NVM_SECTOR_SIZE * i),
 974                                 last, NULL);
 975                 if (ret_val && hw->aq.asq_last_status == I40E_AQ_RC_EPERM) {
 976                         dev_info(&pf->pdev->dev,
 977                                  "read NVM failed, invalid offset 0x%x\n",
 978                                  offset);
 979                         break;
 980                 } else if (ret_val &&
 981                            hw->aq.asq_last_status == I40E_AQ_RC_EACCES) {
 982                         dev_info(&pf->pdev->dev,
 983                                  "read NVM failed, access, offset 0x%x\n",
 984                                  offset);
 985                         break;
 986                 } else if (ret_val) {
 987                         dev_info(&pf->pdev->dev,
 988                                  "read NVM failed offset %d err=%d status=0x%x\n",
 989                                  offset, ret_val, hw->aq.asq_last_status);
 990                         break;
 991                 }
 992         }
 993
 994         i40e_release_nvm(hw);
 995         memcpy(bytes, (u8 *)eeprom_buff, eeprom->len);
 996 free_buff:
 997         kfree(eeprom_buff);
 998         return ret_val;
 999 }
1000
1001 static int i40e_get_eeprom_len(struct net_device *netdev)
1002 {
1003         struct i40e_netdev_priv *np = netdev_priv(netdev);
1004         struct i40e_hw *hw = &np->vsi->back->hw;
1005         u32 val;
1006
1007         val = (rd32(hw, I40E_GLPCI_LBARCTRL)
1008                 & I40E_GLPCI_LBARCTRL_FL_SIZE_MASK)
1009                 >> I40E_GLPCI_LBARCTRL_FL_SIZE_SHIFT;
1010         /* register returns value in power of 2, 64Kbyte chunks. */
1011         val = (64 * 1024) * (1 << val);
1012         return val;
1013 }
1014
1015 static int i40e_set_eeprom(struct net_device *netdev,
1016                            struct ethtool_eeprom *eeprom, u8 *bytes)
1017 {
1018         struct i40e_netdev_priv *np = netdev_priv(netdev);
1019         struct i40e_hw *hw = &np->vsi->back->hw;
1020         struct i40e_pf *pf = np->vsi->back;
1021         struct i40e_nvm_access *cmd;
1022         int ret_val = 0;
1023         int errno;
1024         u32 magic;
1025
1026         /* normal ethtool set_eeprom is not supported */
1027         magic = hw->vendor_id | (hw->device_id << 16);
1028         if (eeprom->magic == magic)
1029                 return -EOPNOTSUPP;
1030
1031         /* check for NVMUpdate access method */
1032         if (!eeprom->magic || (eeprom->magic >> 16) != hw->device_id)
1033                 return -EINVAL;
1034
1035         if (test_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state) ||
1036             test_bit(__I40E_RESET_INTR_RECEIVED, &pf->state))
1037                 return -EBUSY;
1038
1039         cmd = (struct i40e_nvm_access *)eeprom;
1040         ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno);
1041         if (ret_val &&
1042             ((hw->aq.asq_last_status != I40E_AQ_RC_EPERM &&
1043               hw->aq.asq_last_status != I40E_AQ_RC_EBUSY) ||
1044              (hw->debug_mask & I40E_DEBUG_NVM)))
1045                 dev_info(&pf->pdev->dev,
1046                          "NVMUpdate write failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n",
1047                          ret_val, hw->aq.asq_last_status, errno,
1048                          (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK),
1049                          cmd->offset, cmd->data_size);
1050
1051         return errno;
1052 }
1053
1054 static void i40e_get_drvinfo(struct net_device *netdev,
1055                              struct ethtool_drvinfo *drvinfo)
1056 {
1057         struct i40e_netdev_priv *np = netdev_priv(netdev);
1058         struct i40e_vsi *vsi = np->vsi;
1059         struct i40e_pf *pf = vsi->back;
1060
1061         strlcpy(drvinfo->driver, i40e_driver_name, sizeof(drvinfo->driver));
1062         strlcpy(drvinfo->version, i40e_driver_version_str,
1063                 sizeof(drvinfo->version));
1064         strlcpy(drvinfo->fw_version, i40e_fw_version_str(&pf->hw),
1065                 sizeof(drvinfo->fw_version));
1066         strlcpy(drvinfo->bus_info, pci_name(pf->pdev),
1067                 sizeof(drvinfo->bus_info));
1068         drvinfo->n_priv_flags = I40E_PRIV_FLAGS_STR_LEN;
1069 }
1070
1071 static void i40e_get_ringparam(struct net_device *netdev,
1072                                struct ethtool_ringparam *ring)
1073 {
1074         struct i40e_netdev_priv *np = netdev_priv(netdev);
1075         struct i40e_pf *pf = np->vsi->back;
1076         struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi];
1077
1078         ring->rx_max_pending = I40E_MAX_NUM_DESCRIPTORS;
1079         ring->tx_max_pending = I40E_MAX_NUM_DESCRIPTORS;
1080         ring->rx_mini_max_pending = 0;
1081         ring->rx_jumbo_max_pending = 0;
1082         ring->rx_pending = vsi->rx_rings[0]->count;
1083         ring->tx_pending = vsi->tx_rings[0]->count;
1084         ring->rx_mini_pending = 0;
1085         ring->rx_jumbo_pending = 0;
1086 }
1087
1088 static int i40e_set_ringparam(struct net_device *netdev,
1089                               struct ethtool_ringparam *ring)
1090 {
1091         struct i40e_ring *tx_rings = NULL, *rx_rings = NULL;
1092         struct i40e_netdev_priv *np = netdev_priv(netdev);
1093         struct i40e_vsi *vsi = np->vsi;
1094         struct i40e_pf *pf = vsi->back;
1095         u32 new_rx_count, new_tx_count;
1096         int i, err = 0;
1097
1098         if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
1099                 return -EINVAL;
1100
1101         if (ring->tx_pending > I40E_MAX_NUM_DESCRIPTORS ||
1102             ring->tx_pending < I40E_MIN_NUM_DESCRIPTORS ||
1103             ring->rx_pending > I40E_MAX_NUM_DESCRIPTORS ||
1104             ring->rx_pending < I40E_MIN_NUM_DESCRIPTORS) {
1105                 netdev_info(netdev,
1106                             "Descriptors requested (Tx: %d / Rx: %d) out of range [%d-%d]\n",
1107                             ring->tx_pending, ring->rx_pending,
1108                             I40E_MIN_NUM_DESCRIPTORS, I40E_MAX_NUM_DESCRIPTORS);
1109                 return -EINVAL;
1110         }
1111
1112         new_tx_count = ALIGN(ring->tx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE);
1113         new_rx_count = ALIGN(ring->rx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE);
1114
1115         /* if nothing to do return success */
1116         if ((new_tx_count == vsi->tx_rings[0]->count) &&
1117             (new_rx_count == vsi->rx_rings[0]->count))
1118                 return 0;
1119
1120         while (test_and_set_bit(__I40E_CONFIG_BUSY, &pf->state))
1121                 usleep_range(1000, 2000);
1122
1123         if (!netif_running(vsi->netdev)) {
1124                 /* simple case - set for the next time the netdev is started */
1125                 for (i = 0; i < vsi->num_queue_pairs; i++) {
1126                         vsi->tx_rings[i]->count = new_tx_count;
1127                         vsi->rx_rings[i]->count = new_rx_count;
1128                 }
1129                 goto done;
1130         }
1131
1132         /* We can't just free everything and then setup again,
1133          * because the ISRs in MSI-X mode get passed pointers
1134          * to the Tx and Rx ring structs.
1135          */
1136
1137         /* alloc updated Tx resources */
1138         if (new_tx_count != vsi->tx_rings[0]->count) {
1139                 netdev_info(netdev,
1140                             "Changing Tx descriptor count from %d to %d.\n",
1141                             vsi->tx_rings[0]->count, new_tx_count);
1142                 tx_rings = kcalloc(vsi->alloc_queue_pairs,
1143                                    sizeof(struct i40e_ring), GFP_KERNEL);
1144                 if (!tx_rings) {
1145                         err = -ENOMEM;
1146                         goto done;
1147                 }
1148
1149                 for (i = 0; i < vsi->num_queue_pairs; i++) {
1150                         /* clone ring and setup updated count */
1151                         tx_rings[i] = *vsi->tx_rings[i];
1152                         tx_rings[i].count = new_tx_count;
1153                         err = i40e_setup_tx_descriptors(&tx_rings[i]);
1154                         if (err) {
1155                                 while (i) {
1156                                         i--;
1157                                         i40e_free_tx_resources(&tx_rings[i]);
1158                                 }
1159                                 kfree(tx_rings);
1160                                 tx_rings = NULL;
1161
1162                                 goto done;
1163                         }
1164                 }
1165         }
1166
1167         /* alloc updated Rx resources */
1168         if (new_rx_count != vsi->rx_rings[0]->count) {
1169                 netdev_info(netdev,
1170                             "Changing Rx descriptor count from %d to %d\n",
1171                             vsi->rx_rings[0]->count, new_rx_count);
1172                 rx_rings = kcalloc(vsi->alloc_queue_pairs,
1173                                    sizeof(struct i40e_ring), GFP_KERNEL);
1174                 if (!rx_rings) {
1175                         err = -ENOMEM;
1176                         goto free_tx;
1177                 }
1178
1179                 for (i = 0; i < vsi->num_queue_pairs; i++) {
1180                         /* clone ring and setup updated count */
1181                         rx_rings[i] = *vsi->rx_rings[i];
1182                         rx_rings[i].count = new_rx_count;
1183                         err = i40e_setup_rx_descriptors(&rx_rings[i]);
1184                         if (err) {
1185                                 while (i) {
1186                                         i--;
1187                                         i40e_free_rx_resources(&rx_rings[i]);
1188                                 }
1189                                 kfree(rx_rings);
1190                                 rx_rings = NULL;
1191
1192                                 goto free_tx;
1193                         }
1194                 }
1195         }
1196
1197         /* Bring interface down, copy in the new ring info,
1198          * then restore the interface
1199          */
1200         i40e_down(vsi);
1201
1202         if (tx_rings) {
1203                 for (i = 0; i < vsi->num_queue_pairs; i++) {
1204                         i40e_free_tx_resources(vsi->tx_rings[i]);
1205                         *vsi->tx_rings[i] = tx_rings[i];
1206                 }
1207                 kfree(tx_rings);
1208                 tx_rings = NULL;
1209         }
1210
1211         if (rx_rings) {
1212                 for (i = 0; i < vsi->num_queue_pairs; i++) {
1213                         i40e_free_rx_resources(vsi->rx_rings[i]);
1214                         *vsi->rx_rings[i] = rx_rings[i];
1215                 }
1216                 kfree(rx_rings);
1217                 rx_rings = NULL;
1218         }
1219
1220         i40e_up(vsi);
1221
1222 free_tx:
1223         /* error cleanup if the Rx allocations failed after getting Tx */
1224         if (tx_rings) {
1225                 for (i = 0; i < vsi->num_queue_pairs; i++)
1226                         i40e_free_tx_resources(&tx_rings[i]);
1227                 kfree(tx_rings);
1228                 tx_rings = NULL;
1229         }
1230
1231 done:
1232         clear_bit(__I40E_CONFIG_BUSY, &pf->state);
1233
1234         return err;
1235 }
1236
1237 static int i40e_get_sset_count(struct net_device *netdev, int sset)
1238 {
1239         struct i40e_netdev_priv *np = netdev_priv(netdev);
1240         struct i40e_vsi *vsi = np->vsi;
1241         struct i40e_pf *pf = vsi->back;
1242
1243         switch (sset) {
1244         case ETH_SS_TEST:
1245                 return I40E_TEST_LEN;
1246         case ETH_SS_STATS:
1247                 if (vsi == pf->vsi[pf->lan_vsi] && pf->hw.partition_id == 1) {
1248                         int len = I40E_PF_STATS_LEN(netdev);
1249
1250                         if (pf->lan_veb != I40E_NO_VEB)
1251                                 len += I40E_VEB_STATS_LEN;
1252                         return len;
1253                 } else {
1254                         return I40E_VSI_STATS_LEN(netdev);
1255                 }
1256         case ETH_SS_PRIV_FLAGS:
1257                 return I40E_PRIV_FLAGS_STR_LEN;
1258         default:
1259                 return -EOPNOTSUPP;
1260         }
1261 }
1262
1263 static void i40e_get_ethtool_stats(struct net_device *netdev,
1264                                    struct ethtool_stats *stats, u64 *data)
1265 {
1266         struct i40e_netdev_priv *np = netdev_priv(netdev);
1267         struct i40e_ring *tx_ring, *rx_ring;
1268         struct i40e_vsi *vsi = np->vsi;
1269         struct i40e_pf *pf = vsi->back;
1270         int i = 0;
1271         char *p;
1272         int j;
1273         struct rtnl_link_stats64 *net_stats = i40e_get_vsi_stats_struct(vsi);
1274         unsigned int start;
1275
1276         i40e_update_stats(vsi);
1277
1278         for (j = 0; j < I40E_NETDEV_STATS_LEN; j++) {
1279                 p = (char *)net_stats + i40e_gstrings_net_stats[j].stat_offset;
1280                 data[i++] = (i40e_gstrings_net_stats[j].sizeof_stat ==
1281                         sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1282         }
1283         for (j = 0; j < I40E_MISC_STATS_LEN; j++) {
1284                 p = (char *)vsi + i40e_gstrings_misc_stats[j].stat_offset;
1285                 data[i++] = (i40e_gstrings_misc_stats[j].sizeof_stat ==
1286                             sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1287         }
1288 #ifdef I40E_FCOE
1289         for (j = 0; j < I40E_FCOE_STATS_LEN; j++) {
1290                 p = (char *)vsi + i40e_gstrings_fcoe_stats[j].stat_offset;
1291                 data[i++] = (i40e_gstrings_fcoe_stats[j].sizeof_stat ==
1292                         sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1293         }
1294 #endif
1295         rcu_read_lock();
1296         for (j = 0; j < vsi->num_queue_pairs; j++) {
1297                 tx_ring = ACCESS_ONCE(vsi->tx_rings[j]);
1298
1299                 if (!tx_ring)
1300                         continue;
1301
1302                 /* process Tx ring statistics */
1303                 do {
1304                         start = u64_stats_fetch_begin_irq(&tx_ring->syncp);
1305                         data[i] = tx_ring->stats.packets;
1306                         data[i + 1] = tx_ring->stats.bytes;
1307                 } while (u64_stats_fetch_retry_irq(&tx_ring->syncp, start));
1308                 i += 2;
1309
1310                 /* Rx ring is the 2nd half of the queue pair */
1311                 rx_ring = &tx_ring[1];
1312                 do {
1313                         start = u64_stats_fetch_begin_irq(&rx_ring->syncp);
1314                         data[i] = rx_ring->stats.packets;
1315                         data[i + 1] = rx_ring->stats.bytes;
1316                 } while (u64_stats_fetch_retry_irq(&rx_ring->syncp, start));
1317                 i += 2;
1318         }
1319         rcu_read_unlock();
1320         if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1)
1321                 return;
1322
1323         if (pf->lan_veb != I40E_NO_VEB) {
1324                 struct i40e_veb *veb = pf->veb[pf->lan_veb];
1325                 for (j = 0; j < I40E_VEB_STATS_LEN; j++) {
1326                         p = (char *)veb;
1327                         p += i40e_gstrings_veb_stats[j].stat_offset;
1328                         data[i++] = (i40e_gstrings_veb_stats[j].sizeof_stat ==
1329                                      sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1330                 }
1331         }
1332         for (j = 0; j < I40E_GLOBAL_STATS_LEN; j++) {
1333                 p = (char *)pf + i40e_gstrings_stats[j].stat_offset;
1334                 data[i++] = (i40e_gstrings_stats[j].sizeof_stat ==
1335                              sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1336         }
1337         for (j = 0; j < I40E_MAX_USER_PRIORITY; j++) {
1338                 data[i++] = pf->stats.priority_xon_tx[j];
1339                 data[i++] = pf->stats.priority_xoff_tx[j];
1340         }
1341         for (j = 0; j < I40E_MAX_USER_PRIORITY; j++) {
1342                 data[i++] = pf->stats.priority_xon_rx[j];
1343                 data[i++] = pf->stats.priority_xoff_rx[j];
1344         }
1345         for (j = 0; j < I40E_MAX_USER_PRIORITY; j++)
1346                 data[i++] = pf->stats.priority_xon_2_xoff[j];
1347 }
1348
1349 static void i40e_get_strings(struct net_device *netdev, u32 stringset,
1350                              u8 *data)
1351 {
1352         struct i40e_netdev_priv *np = netdev_priv(netdev);
1353         struct i40e_vsi *vsi = np->vsi;
1354         struct i40e_pf *pf = vsi->back;
1355         char *p = (char *)data;
1356         int i;
1357
1358         switch (stringset) {
1359         case ETH_SS_TEST:
1360                 for (i = 0; i < I40E_TEST_LEN; i++) {
1361                         memcpy(data, i40e_gstrings_test[i], ETH_GSTRING_LEN);
1362                         data += ETH_GSTRING_LEN;
1363                 }
1364                 break;
1365         case ETH_SS_STATS:
1366                 for (i = 0; i < I40E_NETDEV_STATS_LEN; i++) {
1367                         snprintf(p, ETH_GSTRING_LEN, "%s",
1368                                  i40e_gstrings_net_stats[i].stat_string);
1369                         p += ETH_GSTRING_LEN;
1370                 }
1371                 for (i = 0; i < I40E_MISC_STATS_LEN; i++) {
1372                         snprintf(p, ETH_GSTRING_LEN, "%s",
1373                                  i40e_gstrings_misc_stats[i].stat_string);
1374                         p += ETH_GSTRING_LEN;
1375                 }
1376 #ifdef I40E_FCOE
1377                 for (i = 0; i < I40E_FCOE_STATS_LEN; i++) {
1378                         snprintf(p, ETH_GSTRING_LEN, "%s",
1379                                  i40e_gstrings_fcoe_stats[i].stat_string);
1380                         p += ETH_GSTRING_LEN;
1381                 }
1382 #endif
1383                 for (i = 0; i < vsi->num_queue_pairs; i++) {
1384                         snprintf(p, ETH_GSTRING_LEN, "tx-%u.tx_packets", i);
1385                         p += ETH_GSTRING_LEN;
1386                         snprintf(p, ETH_GSTRING_LEN, "tx-%u.tx_bytes", i);
1387                         p += ETH_GSTRING_LEN;
1388                         snprintf(p, ETH_GSTRING_LEN, "rx-%u.rx_packets", i);
1389                         p += ETH_GSTRING_LEN;
1390                         snprintf(p, ETH_GSTRING_LEN, "rx-%u.rx_bytes", i);
1391                         p += ETH_GSTRING_LEN;
1392                 }
1393                 if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1)
1394                         return;
1395
1396                 if (pf->lan_veb != I40E_NO_VEB) {
1397                         for (i = 0; i < I40E_VEB_STATS_LEN; i++) {
1398                                 snprintf(p, ETH_GSTRING_LEN, "veb.%s",
1399                                         i40e_gstrings_veb_stats[i].stat_string);
1400                                 p += ETH_GSTRING_LEN;
1401                         }
1402                 }
1403                 for (i = 0; i < I40E_GLOBAL_STATS_LEN; i++) {
1404                         snprintf(p, ETH_GSTRING_LEN, "port.%s",
1405                                  i40e_gstrings_stats[i].stat_string);
1406                         p += ETH_GSTRING_LEN;
1407                 }
1408                 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) {
1409                         snprintf(p, ETH_GSTRING_LEN,
1410                                  "port.tx_priority_%u_xon", i);
1411                         p += ETH_GSTRING_LEN;
1412                         snprintf(p, ETH_GSTRING_LEN,
1413                                  "port.tx_priority_%u_xoff", i);
1414                         p += ETH_GSTRING_LEN;
1415                 }
1416                 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) {
1417                         snprintf(p, ETH_GSTRING_LEN,
1418                                  "port.rx_priority_%u_xon", i);
1419                         p += ETH_GSTRING_LEN;
1420                         snprintf(p, ETH_GSTRING_LEN,
1421                                  "port.rx_priority_%u_xoff", i);
1422                         p += ETH_GSTRING_LEN;
1423                 }
1424                 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) {
1425                         snprintf(p, ETH_GSTRING_LEN,
1426                                  "port.rx_priority_%u_xon_2_xoff", i);
1427                         p += ETH_GSTRING_LEN;
1428                 }
1429                 /* BUG_ON(p - data != I40E_STATS_LEN * ETH_GSTRING_LEN); */
1430                 break;
1431         case ETH_SS_PRIV_FLAGS:
1432                 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) {
1433                         memcpy(data, i40e_priv_flags_strings[i],
1434                                ETH_GSTRING_LEN);
1435                         data += ETH_GSTRING_LEN;
1436                 }
1437                 break;
1438         default:
1439                 break;
1440         }
1441 }
1442
1443 static int i40e_get_ts_info(struct net_device *dev,
1444                             struct ethtool_ts_info *info)
1445 {
1446         struct i40e_pf *pf = i40e_netdev_to_pf(dev);
1447
1448         /* only report HW timestamping if PTP is enabled */
1449         if (!(pf->flags & I40E_FLAG_PTP))
1450                 return ethtool_op_get_ts_info(dev, info);
1451
1452         info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE |
1453                                 SOF_TIMESTAMPING_RX_SOFTWARE |
1454                                 SOF_TIMESTAMPING_SOFTWARE |
1455                                 SOF_TIMESTAMPING_TX_HARDWARE |
1456                                 SOF_TIMESTAMPING_RX_HARDWARE |
1457                                 SOF_TIMESTAMPING_RAW_HARDWARE;
1458
1459         if (pf->ptp_clock)
1460                 info->phc_index = ptp_clock_index(pf->ptp_clock);
1461         else
1462                 info->phc_index = -1;
1463
1464         info->tx_types = (1 << HWTSTAMP_TX_OFF) | (1 << HWTSTAMP_TX_ON);
1465
1466         info->rx_filters = (1 << HWTSTAMP_FILTER_NONE) |
1467                            (1 << HWTSTAMP_FILTER_PTP_V1_L4_SYNC) |
1468                            (1 << HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) |
1469                            (1 << HWTSTAMP_FILTER_PTP_V2_EVENT) |
1470                            (1 << HWTSTAMP_FILTER_PTP_V2_L2_EVENT) |
1471                            (1 << HWTSTAMP_FILTER_PTP_V2_L4_EVENT) |
1472                            (1 << HWTSTAMP_FILTER_PTP_V2_SYNC) |
1473                            (1 << HWTSTAMP_FILTER_PTP_V2_L2_SYNC) |
1474                            (1 << HWTSTAMP_FILTER_PTP_V2_L4_SYNC) |
1475                            (1 << HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) |
1476                            (1 << HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ) |
1477                            (1 << HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ);
1478
1479         return 0;
1480 }
1481
1482 static int i40e_link_test(struct net_device *netdev, u64 *data)
1483 {
1484         struct i40e_netdev_priv *np = netdev_priv(netdev);
1485         struct i40e_pf *pf = np->vsi->back;
1486
1487         netif_info(pf, hw, netdev, "link test\n");
1488         if (i40e_get_link_status(&pf->hw))
1489                 *data = 0;
1490         else
1491                 *data = 1;
1492
1493         return *data;
1494 }
1495
1496 static int i40e_reg_test(struct net_device *netdev, u64 *data)
1497 {
1498         struct i40e_netdev_priv *np = netdev_priv(netdev);
1499         struct i40e_pf *pf = np->vsi->back;
1500
1501         netif_info(pf, hw, netdev, "register test\n");
1502         *data = i40e_diag_reg_test(&pf->hw);
1503
1504         return *data;
1505 }
1506
1507 static int i40e_eeprom_test(struct net_device *netdev, u64 *data)
1508 {
1509         struct i40e_netdev_priv *np = netdev_priv(netdev);
1510         struct i40e_pf *pf = np->vsi->back;
1511
1512         netif_info(pf, hw, netdev, "eeprom test\n");
1513         *data = i40e_diag_eeprom_test(&pf->hw);
1514
1515         /* forcebly clear the NVM Update state machine */
1516         pf->hw.nvmupd_state = I40E_NVMUPD_STATE_INIT;
1517
1518         return *data;
1519 }
1520
1521 static int i40e_intr_test(struct net_device *netdev, u64 *data)
1522 {
1523         struct i40e_netdev_priv *np = netdev_priv(netdev);
1524         struct i40e_pf *pf = np->vsi->back;
1525         u16 swc_old = pf->sw_int_count;
1526
1527         netif_info(pf, hw, netdev, "interrupt test\n");
1528         wr32(&pf->hw, I40E_PFINT_DYN_CTL0,
1529              (I40E_PFINT_DYN_CTL0_INTENA_MASK |
1530               I40E_PFINT_DYN_CTL0_SWINT_TRIG_MASK |
1531               I40E_PFINT_DYN_CTL0_ITR_INDX_MASK |
1532               I40E_PFINT_DYN_CTL0_SW_ITR_INDX_ENA_MASK |
1533               I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK));
1534         usleep_range(1000, 2000);
1535         *data = (swc_old == pf->sw_int_count);
1536
1537         return *data;
1538 }
1539
1540 static int i40e_loopback_test(struct net_device *netdev, u64 *data)
1541 {
1542         struct i40e_netdev_priv *np = netdev_priv(netdev);
1543         struct i40e_pf *pf = np->vsi->back;
1544
1545         netif_info(pf, hw, netdev, "loopback test not implemented\n");
1546         *data = 0;
1547
1548         return *data;
1549 }
1550
1551 static inline bool i40e_active_vfs(struct i40e_pf *pf)
1552 {
1553         struct i40e_vf *vfs = pf->vf;
1554         int i;
1555
1556         for (i = 0; i < pf->num_alloc_vfs; i++)
1557                 if (vfs[i].vf_states & I40E_VF_STAT_ACTIVE)
1558                         return true;
1559         return false;
1560 }
1561
1562 static void i40e_diag_test(struct net_device *netdev,
1563                            struct ethtool_test *eth_test, u64 *data)
1564 {
1565         struct i40e_netdev_priv *np = netdev_priv(netdev);
1566         bool if_running = netif_running(netdev);
1567         struct i40e_pf *pf = np->vsi->back;
1568
1569         if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
1570                 /* Offline tests */
1571                 netif_info(pf, drv, netdev, "offline testing starting\n");
1572
1573                 set_bit(__I40E_TESTING, &pf->state);
1574
1575                 if (i40e_active_vfs(pf)) {
1576                         dev_warn(&pf->pdev->dev,
1577                                  "Please take active VFS offline and restart the adapter before running NIC diagnostics\n");
1578                         data[I40E_ETH_TEST_REG]         = 1;
1579                         data[I40E_ETH_TEST_EEPROM]      = 1;
1580                         data[I40E_ETH_TEST_INTR]        = 1;
1581                         data[I40E_ETH_TEST_LOOPBACK]    = 1;
1582                         data[I40E_ETH_TEST_LINK]        = 1;
1583                         eth_test->flags |= ETH_TEST_FL_FAILED;
1584                         clear_bit(__I40E_TESTING, &pf->state);
1585                         goto skip_ol_tests;
1586                 }
1587
1588                 /* If the device is online then take it offline */
1589                 if (if_running)
1590                         /* indicate we're in test mode */
1591                         dev_close(netdev);
1592                 else
1593                         i40e_do_reset(pf, (1 << __I40E_PF_RESET_REQUESTED));
1594
1595                 /* Link test performed before hardware reset
1596                  * so autoneg doesn't interfere with test result
1597                  */
1598                 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK]))
1599                         eth_test->flags |= ETH_TEST_FL_FAILED;
1600
1601                 if (i40e_eeprom_test(netdev, &data[I40E_ETH_TEST_EEPROM]))
1602                         eth_test->flags |= ETH_TEST_FL_FAILED;
1603
1604                 if (i40e_intr_test(netdev, &data[I40E_ETH_TEST_INTR]))
1605                         eth_test->flags |= ETH_TEST_FL_FAILED;
1606
1607                 if (i40e_loopback_test(netdev, &data[I40E_ETH_TEST_LOOPBACK]))
1608                         eth_test->flags |= ETH_TEST_FL_FAILED;
1609
1610                 /* run reg test last, a reset is required after it */
1611                 if (i40e_reg_test(netdev, &data[I40E_ETH_TEST_REG]))
1612                         eth_test->flags |= ETH_TEST_FL_FAILED;
1613
1614                 clear_bit(__I40E_TESTING, &pf->state);
1615                 i40e_do_reset(pf, (1 << __I40E_PF_RESET_REQUESTED));
1616
1617                 if (if_running)
1618                         dev_open(netdev);
1619         } else {
1620                 /* Online tests */
1621                 netif_info(pf, drv, netdev, "online testing starting\n");
1622
1623                 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK]))
1624                         eth_test->flags |= ETH_TEST_FL_FAILED;
1625
1626                 /* Offline only tests, not run in online; pass by default */
1627                 data[I40E_ETH_TEST_REG] = 0;
1628                 data[I40E_ETH_TEST_EEPROM] = 0;
1629                 data[I40E_ETH_TEST_INTR] = 0;
1630                 data[I40E_ETH_TEST_LOOPBACK] = 0;
1631         }
1632
1633 skip_ol_tests:
1634
1635         netif_info(pf, drv, netdev, "testing finished\n");
1636 }
1637
1638 static void i40e_get_wol(struct net_device *netdev,
1639                          struct ethtool_wolinfo *wol)
1640 {
1641         struct i40e_netdev_priv *np = netdev_priv(netdev);
1642         struct i40e_pf *pf = np->vsi->back;
1643         struct i40e_hw *hw = &pf->hw;
1644         u16 wol_nvm_bits;
1645
1646         /* NVM bit on means WoL disabled for the port */
1647         i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits);
1648         if ((1 << hw->port) & wol_nvm_bits || hw->partition_id != 1) {
1649                 wol->supported = 0;
1650                 wol->wolopts = 0;
1651         } else {
1652                 wol->supported = WAKE_MAGIC;
1653                 wol->wolopts = (pf->wol_en ? WAKE_MAGIC : 0);
1654         }
1655 }
1656
1657 /**
1658  * i40e_set_wol - set the WakeOnLAN configuration
1659  * @netdev: the netdev in question
1660  * @wol: the ethtool WoL setting data
1661  **/
1662 static int i40e_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
1663 {
1664         struct i40e_netdev_priv *np = netdev_priv(netdev);
1665         struct i40e_pf *pf = np->vsi->back;
1666         struct i40e_vsi *vsi = np->vsi;
1667         struct i40e_hw *hw = &pf->hw;
1668         u16 wol_nvm_bits;
1669
1670         /* WoL not supported if this isn't the controlling PF on the port */
1671         if (hw->partition_id != 1) {
1672                 i40e_partition_setting_complaint(pf);
1673                 return -EOPNOTSUPP;
1674         }
1675
1676         if (vsi != pf->vsi[pf->lan_vsi])
1677                 return -EOPNOTSUPP;
1678
1679         /* NVM bit on means WoL disabled for the port */
1680         i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits);
1681         if (((1 << hw->port) & wol_nvm_bits))
1682                 return -EOPNOTSUPP;
1683
1684         /* only magic packet is supported */
1685         if (wol->wolopts && (wol->wolopts != WAKE_MAGIC))
1686                 return -EOPNOTSUPP;
1687
1688         /* is this a new value? */
1689         if (pf->wol_en != !!wol->wolopts) {
1690                 pf->wol_en = !!wol->wolopts;
1691                 device_set_wakeup_enable(&pf->pdev->dev, pf->wol_en);
1692         }
1693
1694         return 0;
1695 }
1696
1697 static int i40e_set_phys_id(struct net_device *netdev,
1698                             enum ethtool_phys_id_state state)
1699 {
1700         struct i40e_netdev_priv *np = netdev_priv(netdev);
1701         struct i40e_pf *pf = np->vsi->back;
1702         struct i40e_hw *hw = &pf->hw;
1703         int blink_freq = 2;
1704
1705         switch (state) {
1706         case ETHTOOL_ID_ACTIVE:
1707                 pf->led_status = i40e_led_get(hw);
1708                 return blink_freq;
1709         case ETHTOOL_ID_ON:
1710                 i40e_led_set(hw, 0xF, false);
1711                 break;
1712         case ETHTOOL_ID_OFF:
1713                 i40e_led_set(hw, 0x0, false);
1714                 break;
1715         case ETHTOOL_ID_INACTIVE:
1716                 i40e_led_set(hw, pf->led_status, false);
1717                 break;
1718         default:
1719                 break;
1720         }
1721
1722         return 0;
1723 }
1724
1725 /* NOTE: i40e hardware uses a conversion factor of 2 for Interrupt
1726  * Throttle Rate (ITR) ie. ITR(1) = 2us ITR(10) = 20 us, and also
1727  * 125us (8000 interrupts per second) == ITR(62)
1728  */
1729
1730 static int i40e_get_coalesce(struct net_device *netdev,
1731                              struct ethtool_coalesce *ec)
1732 {
1733         struct i40e_netdev_priv *np = netdev_priv(netdev);
1734         struct i40e_vsi *vsi = np->vsi;
1735
1736         ec->tx_max_coalesced_frames_irq = vsi->work_limit;
1737         ec->rx_max_coalesced_frames_irq = vsi->work_limit;
1738
1739         if (ITR_IS_DYNAMIC(vsi->rx_itr_setting))
1740                 ec->use_adaptive_rx_coalesce = 1;
1741
1742         if (ITR_IS_DYNAMIC(vsi->tx_itr_setting))
1743                 ec->use_adaptive_tx_coalesce = 1;
1744
1745         ec->rx_coalesce_usecs = vsi->rx_itr_setting & ~I40E_ITR_DYNAMIC;
1746         ec->tx_coalesce_usecs = vsi->tx_itr_setting & ~I40E_ITR_DYNAMIC;
1747
1748         return 0;
1749 }
1750
1751 static int i40e_set_coalesce(struct net_device *netdev,
1752                              struct ethtool_coalesce *ec)
1753 {
1754         struct i40e_netdev_priv *np = netdev_priv(netdev);
1755         struct i40e_q_vector *q_vector;
1756         struct i40e_vsi *vsi = np->vsi;
1757         struct i40e_pf *pf = vsi->back;
1758         struct i40e_hw *hw = &pf->hw;
1759         u16 vector;
1760         int i;
1761
1762         if (ec->tx_max_coalesced_frames_irq || ec->rx_max_coalesced_frames_irq)
1763                 vsi->work_limit = ec->tx_max_coalesced_frames_irq;
1764
1765         vector = vsi->base_vector;
1766         if ((ec->rx_coalesce_usecs >= (I40E_MIN_ITR << 1)) &&
1767             (ec->rx_coalesce_usecs <= (I40E_MAX_ITR << 1))) {
1768                 vsi->rx_itr_setting = ec->rx_coalesce_usecs;
1769         } else if (ec->rx_coalesce_usecs == 0) {
1770                 vsi->rx_itr_setting = ec->rx_coalesce_usecs;
1771                 if (ec->use_adaptive_rx_coalesce)
1772                         netif_info(pf, drv, netdev, "rx-usecs=0, need to disable adaptive-rx for a complete disable\n");
1773         } else {
1774                 netif_info(pf, drv, netdev, "Invalid value, rx-usecs range is 0-8160\n");
1775                 return -EINVAL;
1776         }
1777
1778         if ((ec->tx_coalesce_usecs >= (I40E_MIN_ITR << 1)) &&
1779             (ec->tx_coalesce_usecs <= (I40E_MAX_ITR << 1))) {
1780                 vsi->tx_itr_setting = ec->tx_coalesce_usecs;
1781         } else if (ec->tx_coalesce_usecs == 0) {
1782                 vsi->tx_itr_setting = ec->tx_coalesce_usecs;
1783                 if (ec->use_adaptive_tx_coalesce)
1784                         netif_info(pf, drv, netdev, "tx-usecs=0, need to disable adaptive-tx for a complete disable\n");
1785         } else {
1786                 netif_info(pf, drv, netdev,
1787                            "Invalid value, tx-usecs range is 0-8160\n");
1788                 return -EINVAL;
1789         }
1790
1791         if (ec->use_adaptive_rx_coalesce)
1792                 vsi->rx_itr_setting |= I40E_ITR_DYNAMIC;
1793         else
1794                 vsi->rx_itr_setting &= ~I40E_ITR_DYNAMIC;
1795
1796         if (ec->use_adaptive_tx_coalesce)
1797                 vsi->tx_itr_setting |= I40E_ITR_DYNAMIC;
1798         else
1799                 vsi->tx_itr_setting &= ~I40E_ITR_DYNAMIC;
1800
1801         for (i = 0; i < vsi->num_q_vectors; i++, vector++) {
1802                 q_vector = vsi->q_vectors[i];
1803                 q_vector->rx.itr = ITR_TO_REG(vsi->rx_itr_setting);
1804                 wr32(hw, I40E_PFINT_ITRN(0, vector - 1), q_vector->rx.itr);
1805                 q_vector->tx.itr = ITR_TO_REG(vsi->tx_itr_setting);
1806                 wr32(hw, I40E_PFINT_ITRN(1, vector - 1), q_vector->tx.itr);
1807                 i40e_flush(hw);
1808         }
1809
1810         return 0;
1811 }
1812
1813 /**
1814  * i40e_get_rss_hash_opts - Get RSS hash Input Set for each flow type
1815  * @pf: pointer to the physical function struct
1816  * @cmd: ethtool rxnfc command
1817  *
1818  * Returns Success if the flow is supported, else Invalid Input.
1819  **/
1820 static int i40e_get_rss_hash_opts(struct i40e_pf *pf, struct ethtool_rxnfc *cmd)
1821 {
1822         cmd->data = 0;
1823
1824         if (pf->vsi[pf->lan_vsi]->rxnfc.data != 0) {
1825                 cmd->data = pf->vsi[pf->lan_vsi]->rxnfc.data;
1826                 cmd->flow_type = pf->vsi[pf->lan_vsi]->rxnfc.flow_type;
1827                 return 0;
1828         }
1829         /* Report default options for RSS on i40e */
1830         switch (cmd->flow_type) {
1831         case TCP_V4_FLOW:
1832         case UDP_V4_FLOW:
1833                 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
1834         /* fall through to add IP fields */
1835         case SCTP_V4_FLOW:
1836         case AH_ESP_V4_FLOW:
1837         case AH_V4_FLOW:
1838         case ESP_V4_FLOW:
1839         case IPV4_FLOW:
1840                 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
1841                 break;
1842         case TCP_V6_FLOW:
1843         case UDP_V6_FLOW:
1844                 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
1845         /* fall through to add IP fields */
1846         case SCTP_V6_FLOW:
1847         case AH_ESP_V6_FLOW:
1848         case AH_V6_FLOW:
1849         case ESP_V6_FLOW:
1850         case IPV6_FLOW:
1851                 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
1852                 break;
1853         default:
1854                 return -EINVAL;
1855         }
1856
1857         return 0;
1858 }
1859
1860 /**
1861  * i40e_get_ethtool_fdir_all - Populates the rule count of a command
1862  * @pf: Pointer to the physical function struct
1863  * @cmd: The command to get or set Rx flow classification rules
1864  * @rule_locs: Array of used rule locations
1865  *
1866  * This function populates both the total and actual rule count of
1867  * the ethtool flow classification command
1868  *
1869  * Returns 0 on success or -EMSGSIZE if entry not found
1870  **/
1871 static int i40e_get_ethtool_fdir_all(struct i40e_pf *pf,
1872                                      struct ethtool_rxnfc *cmd,
1873                                      u32 *rule_locs)
1874 {
1875         struct i40e_fdir_filter *rule;
1876         struct hlist_node *node2;
1877         int cnt = 0;
1878
1879         /* report total rule count */
1880         cmd->data = i40e_get_fd_cnt_all(pf);
1881
1882         hlist_for_each_entry_safe(rule, node2,
1883                                   &pf->fdir_filter_list, fdir_node) {
1884                 if (cnt == cmd->rule_cnt)
1885                         return -EMSGSIZE;
1886
1887                 rule_locs[cnt] = rule->fd_id;
1888                 cnt++;
1889         }
1890
1891         cmd->rule_cnt = cnt;
1892
1893         return 0;
1894 }
1895
1896 /**
1897  * i40e_get_ethtool_fdir_entry - Look up a filter based on Rx flow
1898  * @pf: Pointer to the physical function struct
1899  * @cmd: The command to get or set Rx flow classification rules
1900  *
1901  * This function looks up a filter based on the Rx flow classification
1902  * command and fills the flow spec info for it if found
1903  *
1904  * Returns 0 on success or -EINVAL if filter not found
1905  **/
1906 static int i40e_get_ethtool_fdir_entry(struct i40e_pf *pf,
1907                                        struct ethtool_rxnfc *cmd)
1908 {
1909         struct ethtool_rx_flow_spec *fsp =
1910                         (struct ethtool_rx_flow_spec *)&cmd->fs;
1911         struct i40e_fdir_filter *rule = NULL;
1912         struct hlist_node *node2;
1913
1914         hlist_for_each_entry_safe(rule, node2,
1915                                   &pf->fdir_filter_list, fdir_node) {
1916                 if (fsp->location <= rule->fd_id)
1917                         break;
1918         }
1919
1920         if (!rule || fsp->location != rule->fd_id)
1921                 return -EINVAL;
1922
1923         fsp->flow_type = rule->flow_type;
1924         if (fsp->flow_type == IP_USER_FLOW) {
1925                 fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4;
1926                 fsp->h_u.usr_ip4_spec.proto = 0;
1927                 fsp->m_u.usr_ip4_spec.proto = 0;
1928         }
1929
1930         /* Reverse the src and dest notion, since the HW views them from
1931          * Tx perspective where as the user expects it from Rx filter view.
1932          */
1933         fsp->h_u.tcp_ip4_spec.psrc = rule->dst_port;
1934         fsp->h_u.tcp_ip4_spec.pdst = rule->src_port;
1935         fsp->h_u.tcp_ip4_spec.ip4src = rule->dst_ip[0];
1936         fsp->h_u.tcp_ip4_spec.ip4dst = rule->src_ip[0];
1937
1938         if (rule->dest_ctl == I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET)
1939                 fsp->ring_cookie = RX_CLS_FLOW_DISC;
1940         else
1941                 fsp->ring_cookie = rule->q_index;
1942
1943         if (rule->dest_vsi != pf->vsi[pf->lan_vsi]->id) {
1944                 struct i40e_vsi *vsi;
1945
1946                 vsi = i40e_find_vsi_from_id(pf, rule->dest_vsi);
1947                 if (vsi && vsi->type == I40E_VSI_SRIOV) {
1948                         fsp->h_ext.data[1] = htonl(vsi->vf_id);
1949                         fsp->m_ext.data[1] = htonl(0x1);
1950                 }
1951         }
1952
1953         return 0;
1954 }
1955
1956 /**
1957  * i40e_get_rxnfc - command to get RX flow classification rules
1958  * @netdev: network interface device structure
1959  * @cmd: ethtool rxnfc command
1960  *
1961  * Returns Success if the command is supported.
1962  **/
1963 static int i40e_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd,
1964                           u32 *rule_locs)
1965 {
1966         struct i40e_netdev_priv *np = netdev_priv(netdev);
1967         struct i40e_vsi *vsi = np->vsi;
1968         struct i40e_pf *pf = vsi->back;
1969         int ret = -EOPNOTSUPP;
1970
1971         switch (cmd->cmd) {
1972         case ETHTOOL_GRXRINGS:
1973                 cmd->data = vsi->alloc_queue_pairs;
1974                 ret = 0;
1975                 break;
1976         case ETHTOOL_GRXFH:
1977                 ret = i40e_get_rss_hash_opts(pf, cmd);
1978                 break;
1979         case ETHTOOL_GRXCLSRLCNT:
1980                 cmd->rule_cnt = pf->fdir_pf_active_filters;
1981                 /* report total rule count */
1982                 cmd->data = i40e_get_fd_cnt_all(pf);
1983                 ret = 0;
1984                 break;
1985         case ETHTOOL_GRXCLSRULE:
1986                 ret = i40e_get_ethtool_fdir_entry(pf, cmd);
1987                 break;
1988         case ETHTOOL_GRXCLSRLALL:
1989                 ret = i40e_get_ethtool_fdir_all(pf, cmd, rule_locs);
1990                 break;
1991         default:
1992                 break;
1993         }
1994
1995         return ret;
1996 }
1997
1998 /**
1999  * i40e_set_rss_hash_opt - Enable/Disable flow types for RSS hash
2000  * @pf: pointer to the physical function struct
2001  * @cmd: ethtool rxnfc command
2002  *
2003  * Returns Success if the flow input set is supported.
2004  **/
2005 static int i40e_set_rss_hash_opt(struct i40e_pf *pf, struct ethtool_rxnfc *nfc)
2006 {
2007         struct i40e_hw *hw = &pf->hw;
2008         u64 hena = (u64)rd32(hw, I40E_PFQF_HENA(0)) |
2009                    ((u64)rd32(hw, I40E_PFQF_HENA(1)) << 32);
2010
2011         /* RSS does not support anything other than hashing
2012          * to queues on src and dst IPs and ports
2013          */
2014         if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST |
2015                           RXH_L4_B_0_1 | RXH_L4_B_2_3))
2016                 return -EINVAL;
2017
2018         /* We need at least the IP SRC and DEST fields for hashing */
2019         if (!(nfc->data & RXH_IP_SRC) ||
2020             !(nfc->data & RXH_IP_DST))
2021                 return -EINVAL;
2022
2023         switch (nfc->flow_type) {
2024         case TCP_V4_FLOW:
2025                 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
2026                 case 0:
2027                         hena &= ~((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV4_TCP);
2028                         break;
2029                 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
2030                         hena |= ((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV4_TCP);
2031                         break;
2032                 default:
2033                         return -EINVAL;
2034                 }
2035                 break;
2036         case TCP_V6_FLOW:
2037                 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
2038                 case 0:
2039                         hena &= ~((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV6_TCP);
2040                         break;
2041                 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
2042                         hena |= ((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV6_TCP);
2043                         break;
2044                 default:
2045                         return -EINVAL;
2046                 }
2047                 break;
2048         case UDP_V4_FLOW:
2049                 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
2050                 case 0:
2051                         hena &= ~(((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV4_UDP) |
2052                                   ((u64)1 << I40E_FILTER_PCTYPE_FRAG_IPV4));
2053                         break;
2054                 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
2055                         hena |= (((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV4_UDP) |
2056                                   ((u64)1 << I40E_FILTER_PCTYPE_FRAG_IPV4));
2057                         break;
2058                 default:
2059                         return -EINVAL;
2060                 }
2061                 break;
2062         case UDP_V6_FLOW:
2063                 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
2064                 case 0:
2065                         hena &= ~(((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV6_UDP) |
2066                                   ((u64)1 << I40E_FILTER_PCTYPE_FRAG_IPV6));
2067                         break;
2068                 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
2069                         hena |= (((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV6_UDP) |
2070                                  ((u64)1 << I40E_FILTER_PCTYPE_FRAG_IPV6));
2071                         break;
2072                 default:
2073                         return -EINVAL;
2074                 }
2075                 break;
2076         case AH_ESP_V4_FLOW:
2077         case AH_V4_FLOW:
2078         case ESP_V4_FLOW:
2079         case SCTP_V4_FLOW:
2080                 if ((nfc->data & RXH_L4_B_0_1) ||
2081                     (nfc->data & RXH_L4_B_2_3))
2082                         return -EINVAL;
2083                 hena |= ((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV4_OTHER);
2084                 break;
2085         case AH_ESP_V6_FLOW:
2086         case AH_V6_FLOW:
2087         case ESP_V6_FLOW:
2088         case SCTP_V6_FLOW:
2089                 if ((nfc->data & RXH_L4_B_0_1) ||
2090                     (nfc->data & RXH_L4_B_2_3))
2091                         return -EINVAL;
2092                 hena |= ((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV6_OTHER);
2093                 break;
2094         case IPV4_FLOW:
2095                 hena |= ((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV4_OTHER) |
2096                         ((u64)1 << I40E_FILTER_PCTYPE_FRAG_IPV4);
2097                 break;
2098         case IPV6_FLOW:
2099                 hena |= ((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV6_OTHER) |
2100                         ((u64)1 << I40E_FILTER_PCTYPE_FRAG_IPV6);
2101                 break;
2102         default:
2103                 return -EINVAL;
2104         }
2105
2106         wr32(hw, I40E_PFQF_HENA(0), (u32)hena);
2107         wr32(hw, I40E_PFQF_HENA(1), (u32)(hena >> 32));
2108         i40e_flush(hw);
2109
2110         /* Save setting for future output/update */
2111         pf->vsi[pf->lan_vsi]->rxnfc = *nfc;
2112
2113         return 0;
2114 }
2115
2116 /**
2117  * i40e_match_fdir_input_set - Match a new filter against an existing one
2118  * @rule: The filter already added
2119  * @input: The new filter to comapre against
2120  *
2121  * Returns true if the two input set match
2122  **/
2123 static bool i40e_match_fdir_input_set(struct i40e_fdir_filter *rule,
2124                                       struct i40e_fdir_filter *input)
2125 {
2126         if ((rule->dst_ip[0] != input->dst_ip[0]) ||
2127             (rule->src_ip[0] != input->src_ip[0]) ||
2128             (rule->dst_port != input->dst_port) ||
2129             (rule->src_port != input->src_port))
2130                 return false;
2131         return true;
2132 }
2133
2134 /**
2135  * i40e_update_ethtool_fdir_entry - Updates the fdir filter entry
2136  * @vsi: Pointer to the targeted VSI
2137  * @input: The filter to update or NULL to indicate deletion
2138  * @sw_idx: Software index to the filter
2139  * @cmd: The command to get or set Rx flow classification rules
2140  *
2141  * This function updates (or deletes) a Flow Director entry from
2142  * the hlist of the corresponding PF
2143  *
2144  * Returns 0 on success
2145  **/
2146 static int i40e_update_ethtool_fdir_entry(struct i40e_vsi *vsi,
2147                                           struct i40e_fdir_filter *input,
2148                                           u16 sw_idx,
2149                                           struct ethtool_rxnfc *cmd)
2150 {
2151         struct i40e_fdir_filter *rule, *parent;
2152         struct i40e_pf *pf = vsi->back;
2153         struct hlist_node *node2;
2154         int err = -EINVAL;
2155
2156         parent = NULL;
2157         rule = NULL;
2158
2159         hlist_for_each_entry_safe(rule, node2,
2160                                   &pf->fdir_filter_list, fdir_node) {
2161                 /* hash found, or no matching entry */
2162                 if (rule->fd_id >= sw_idx)
2163                         break;
2164                 parent = rule;
2165         }
2166
2167         /* if there is an old rule occupying our place remove it */
2168         if (rule && (rule->fd_id == sw_idx)) {
2169                 if (input && !i40e_match_fdir_input_set(rule, input))
2170                         err = i40e_add_del_fdir(vsi, rule, false);
2171                 else if (!input)
2172                         err = i40e_add_del_fdir(vsi, rule, false);
2173                 hlist_del(&rule->fdir_node);
2174                 kfree(rule);
2175                 pf->fdir_pf_active_filters--;
2176         }
2177
2178         /* If no input this was a delete, err should be 0 if a rule was
2179          * successfully found and removed from the list else -EINVAL
2180          */
2181         if (!input)
2182                 return err;
2183
2184         /* initialize node and set software index */
2185         INIT_HLIST_NODE(&input->fdir_node);
2186
2187         /* add filter to the list */
2188         if (parent)
2189                 hlist_add_behind(&input->fdir_node, &parent->fdir_node);
2190         else
2191                 hlist_add_head(&input->fdir_node,
2192                                &pf->fdir_filter_list);
2193
2194         /* update counts */
2195         pf->fdir_pf_active_filters++;
2196
2197         return 0;
2198 }
2199
2200 /**
2201  * i40e_del_fdir_entry - Deletes a Flow Director filter entry
2202  * @vsi: Pointer to the targeted VSI
2203  * @cmd: The command to get or set Rx flow classification rules
2204  *
2205  * The function removes a Flow Director filter entry from the
2206  * hlist of the corresponding PF
2207  *
2208  * Returns 0 on success
2209  */
2210 static int i40e_del_fdir_entry(struct i40e_vsi *vsi,
2211                                struct ethtool_rxnfc *cmd)
2212 {
2213         struct ethtool_rx_flow_spec *fsp =
2214                 (struct ethtool_rx_flow_spec *)&cmd->fs;
2215         struct i40e_pf *pf = vsi->back;
2216         int ret = 0;
2217
2218         if (test_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state) ||
2219             test_bit(__I40E_RESET_INTR_RECEIVED, &pf->state))
2220                 return -EBUSY;
2221
2222         if (test_bit(__I40E_FD_FLUSH_REQUESTED, &pf->state))
2223                 return -EBUSY;
2224
2225         ret = i40e_update_ethtool_fdir_entry(vsi, NULL, fsp->location, cmd);
2226
2227         i40e_fdir_check_and_reenable(pf);
2228         return ret;
2229 }
2230
2231 /**
2232  * i40e_add_fdir_ethtool - Add/Remove Flow Director filters
2233  * @vsi: pointer to the targeted VSI
2234  * @cmd: command to get or set RX flow classification rules
2235  *
2236  * Add Flow Director filters for a specific flow spec based on their
2237  * protocol.  Returns 0 if the filters were successfully added.
2238  **/
2239 static int i40e_add_fdir_ethtool(struct i40e_vsi *vsi,
2240                                  struct ethtool_rxnfc *cmd)
2241 {
2242         struct ethtool_rx_flow_spec *fsp;
2243         struct i40e_fdir_filter *input;
2244         struct i40e_pf *pf;
2245         int ret = -EINVAL;
2246         u16 vf_id;
2247
2248         if (!vsi)
2249                 return -EINVAL;
2250
2251         pf = vsi->back;
2252
2253         if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED))
2254                 return -EOPNOTSUPP;
2255
2256         if (pf->auto_disable_flags & I40E_FLAG_FD_SB_ENABLED)
2257                 return -ENOSPC;
2258
2259         if (test_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state) ||
2260             test_bit(__I40E_RESET_INTR_RECEIVED, &pf->state))
2261                 return -EBUSY;
2262
2263         if (test_bit(__I40E_FD_FLUSH_REQUESTED, &pf->state))
2264                 return -EBUSY;
2265
2266         fsp = (struct ethtool_rx_flow_spec *)&cmd->fs;
2267
2268         if (fsp->location >= (pf->hw.func_caps.fd_filters_best_effort +
2269                               pf->hw.func_caps.fd_filters_guaranteed)) {
2270                 return -EINVAL;
2271         }
2272
2273         if ((fsp->ring_cookie != RX_CLS_FLOW_DISC) &&
2274             (fsp->ring_cookie >= vsi->num_queue_pairs))
2275                 return -EINVAL;
2276
2277         input = kzalloc(sizeof(*input), GFP_KERNEL);
2278
2279         if (!input)
2280                 return -ENOMEM;
2281
2282         input->fd_id = fsp->location;
2283
2284         if (fsp->ring_cookie == RX_CLS_FLOW_DISC)
2285                 input->dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET;
2286         else
2287                 input->dest_ctl =
2288                              I40E_FILTER_PROGRAM_DESC_DEST_DIRECT_PACKET_QINDEX;
2289
2290         input->q_index = fsp->ring_cookie;
2291         input->flex_off = 0;
2292         input->pctype = 0;
2293         input->dest_vsi = vsi->id;
2294         input->fd_status = I40E_FILTER_PROGRAM_DESC_FD_STATUS_FD_ID;
2295         input->cnt_index  = pf->fd_sb_cnt_idx;
2296         input->flow_type = fsp->flow_type;
2297         input->ip4_proto = fsp->h_u.usr_ip4_spec.proto;
2298
2299         /* Reverse the src and dest notion, since the HW expects them to be from
2300          * Tx perspective where as the input from user is from Rx filter view.
2301          */
2302         input->dst_port = fsp->h_u.tcp_ip4_spec.psrc;
2303         input->src_port = fsp->h_u.tcp_ip4_spec.pdst;
2304         input->dst_ip[0] = fsp->h_u.tcp_ip4_spec.ip4src;
2305         input->src_ip[0] = fsp->h_u.tcp_ip4_spec.ip4dst;
2306
2307         if (ntohl(fsp->m_ext.data[1])) {
2308                 if (ntohl(fsp->h_ext.data[1]) >= pf->num_alloc_vfs) {
2309                         netif_info(pf, drv, vsi->netdev, "Invalid VF id\n");
2310                         goto free_input;
2311                 }
2312                 vf_id = ntohl(fsp->h_ext.data[1]);
2313                 /* Find vsi id from vf id and override dest vsi */
2314                 input->dest_vsi = pf->vf[vf_id].lan_vsi_id;
2315                 if (input->q_index >= pf->vf[vf_id].num_queue_pairs) {
2316                         netif_info(pf, drv, vsi->netdev, "Invalid queue id\n");
2317                         goto free_input;
2318                 }
2319         }
2320
2321         ret = i40e_add_del_fdir(vsi, input, true);
2322 free_input:
2323         if (ret)
2324                 kfree(input);
2325         else
2326                 i40e_update_ethtool_fdir_entry(vsi, input, fsp->location, NULL);
2327
2328         return ret;
2329 }
2330
2331 /**
2332  * i40e_set_rxnfc - command to set RX flow classification rules
2333  * @netdev: network interface device structure
2334  * @cmd: ethtool rxnfc command
2335  *
2336  * Returns Success if the command is supported.
2337  **/
2338 static int i40e_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd)
2339 {
2340         struct i40e_netdev_priv *np = netdev_priv(netdev);
2341         struct i40e_vsi *vsi = np->vsi;
2342         struct i40e_pf *pf = vsi->back;
2343         int ret = -EOPNOTSUPP;
2344
2345         switch (cmd->cmd) {
2346         case ETHTOOL_SRXFH:
2347                 ret = i40e_set_rss_hash_opt(pf, cmd);
2348                 break;
2349         case ETHTOOL_SRXCLSRLINS:
2350                 ret = i40e_add_fdir_ethtool(vsi, cmd);
2351                 break;
2352         case ETHTOOL_SRXCLSRLDEL:
2353                 ret = i40e_del_fdir_entry(vsi, cmd);
2354                 break;
2355         default:
2356                 break;
2357         }
2358
2359         return ret;
2360 }
2361
2362 /**
2363  * i40e_max_channels - get Max number of combined channels supported
2364  * @vsi: vsi pointer
2365  **/
2366 static unsigned int i40e_max_channels(struct i40e_vsi *vsi)
2367 {
2368         /* TODO: This code assumes DCB and FD is disabled for now. */
2369         return vsi->alloc_queue_pairs;
2370 }
2371
2372 /**
2373  * i40e_get_channels - Get the current channels enabled and max supported etc.
2374  * @netdev: network interface device structure
2375  * @ch: ethtool channels structure
2376  *
2377  * We don't support separate tx and rx queues as channels. The other count
2378  * represents how many queues are being used for control. max_combined counts
2379  * how many queue pairs we can support. They may not be mapped 1 to 1 with
2380  * q_vectors since we support a lot more queue pairs than q_vectors.
2381  **/
2382 static void i40e_get_channels(struct net_device *dev,
2383                                struct ethtool_channels *ch)
2384 {
2385         struct i40e_netdev_priv *np = netdev_priv(dev);
2386         struct i40e_vsi *vsi = np->vsi;
2387         struct i40e_pf *pf = vsi->back;
2388
2389         /* report maximum channels */
2390         ch->max_combined = i40e_max_channels(vsi);
2391
2392         /* report info for other vector */
2393         ch->other_count = (pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0;
2394         ch->max_other = ch->other_count;
2395
2396         /* Note: This code assumes DCB is disabled for now. */
2397         ch->combined_count = vsi->num_queue_pairs;
2398 }
2399
2400 /**
2401  * i40e_set_channels - Set the new channels count.
2402  * @netdev: network interface device structure
2403  * @ch: ethtool channels structure
2404  *
2405  * The new channels count may not be the same as requested by the user
2406  * since it gets rounded down to a power of 2 value.
2407  **/
2408 static int i40e_set_channels(struct net_device *dev,
2409                               struct ethtool_channels *ch)
2410 {
2411         struct i40e_netdev_priv *np = netdev_priv(dev);
2412         unsigned int count = ch->combined_count;
2413         struct i40e_vsi *vsi = np->vsi;
2414         struct i40e_pf *pf = vsi->back;
2415         int new_count;
2416
2417         /* We do not support setting channels for any other VSI at present */
2418         if (vsi->type != I40E_VSI_MAIN)
2419                 return -EINVAL;
2420
2421         /* verify they are not requesting separate vectors */
2422         if (!count || ch->rx_count || ch->tx_count)
2423                 return -EINVAL;
2424
2425         /* verify other_count has not changed */
2426         if (ch->other_count != ((pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0))
2427                 return -EINVAL;
2428
2429         /* verify the number of channels does not exceed hardware limits */
2430         if (count > i40e_max_channels(vsi))
2431                 return -EINVAL;
2432
2433         /* update feature limits from largest to smallest supported values */
2434         /* TODO: Flow director limit, DCB etc */
2435
2436         /* use rss_reconfig to rebuild with new queue count and update traffic
2437          * class queue mapping
2438          */
2439         new_count = i40e_reconfig_rss_queues(pf, count);
2440         if (new_count > 0)
2441                 return 0;
2442         else
2443                 return -EINVAL;
2444 }
2445
2446 #define I40E_HLUT_ARRAY_SIZE ((I40E_PFQF_HLUT_MAX_INDEX + 1) * 4)
2447 /**
2448  * i40e_get_rxfh_key_size - get the RSS hash key size
2449  * @netdev: network interface device structure
2450  *
2451  * Returns the table size.
2452  **/
2453 static u32 i40e_get_rxfh_key_size(struct net_device *netdev)
2454 {
2455         return I40E_HKEY_ARRAY_SIZE;
2456 }
2457
2458 /**
2459  * i40e_get_rxfh_indir_size - get the rx flow hash indirection table size
2460  * @netdev: network interface device structure
2461  *
2462  * Returns the table size.
2463  **/
2464 static u32 i40e_get_rxfh_indir_size(struct net_device *netdev)
2465 {
2466         return I40E_HLUT_ARRAY_SIZE;
2467 }
2468
2469 static int i40e_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key,
2470                          u8 *hfunc)
2471 {
2472         struct i40e_netdev_priv *np = netdev_priv(netdev);
2473         struct i40e_vsi *vsi = np->vsi;
2474         struct i40e_pf *pf = vsi->back;
2475         struct i40e_hw *hw = &pf->hw;
2476         u32 reg_val;
2477         int i, j;
2478
2479         if (hfunc)
2480                 *hfunc = ETH_RSS_HASH_TOP;
2481
2482         if (!indir)
2483                 return 0;
2484
2485         for (i = 0, j = 0; i <= I40E_PFQF_HLUT_MAX_INDEX; i++) {
2486                 reg_val = rd32(hw, I40E_PFQF_HLUT(i));
2487                 indir[j++] = reg_val & 0xff;
2488                 indir[j++] = (reg_val >> 8) & 0xff;
2489                 indir[j++] = (reg_val >> 16) & 0xff;
2490                 indir[j++] = (reg_val >> 24) & 0xff;
2491         }
2492
2493         if (key) {
2494                 for (i = 0, j = 0; i <= I40E_PFQF_HKEY_MAX_INDEX; i++) {
2495                         reg_val = rd32(hw, I40E_PFQF_HKEY(i));
2496                         key[j++] = (u8)(reg_val & 0xff);
2497                         key[j++] = (u8)((reg_val >> 8) & 0xff);
2498                         key[j++] = (u8)((reg_val >> 16) & 0xff);
2499                         key[j++] = (u8)((reg_val >> 24) & 0xff);
2500                 }
2501         }
2502         return 0;
2503 }
2504
2505 /**
2506  * i40e_set_rxfh - set the rx flow hash indirection table
2507  * @netdev: network interface device structure
2508  * @indir: indirection table
2509  * @key: hash key
2510  *
2511  * Returns -EINVAL if the table specifies an inavlid queue id, otherwise
2512  * returns 0 after programming the table.
2513  **/
2514 static int i40e_set_rxfh(struct net_device *netdev, const u32 *indir,
2515                          const u8 *key, const u8 hfunc)
2516 {
2517         struct i40e_netdev_priv *np = netdev_priv(netdev);
2518         struct i40e_vsi *vsi = np->vsi;
2519         struct i40e_pf *pf = vsi->back;
2520         struct i40e_hw *hw = &pf->hw;
2521         u32 reg_val;
2522         int i, j;
2523
2524         if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)
2525                 return -EOPNOTSUPP;
2526
2527         if (!indir)
2528                 return 0;
2529
2530         for (i = 0, j = 0; i <= I40E_PFQF_HLUT_MAX_INDEX; i++) {
2531                 reg_val = indir[j++];
2532                 reg_val |= indir[j++] << 8;
2533                 reg_val |= indir[j++] << 16;
2534                 reg_val |= indir[j++] << 24;
2535                 wr32(hw, I40E_PFQF_HLUT(i), reg_val);
2536         }
2537
2538         if (key) {
2539                 for (i = 0, j = 0; i <= I40E_PFQF_HKEY_MAX_INDEX; i++) {
2540                         reg_val = key[j++];
2541                         reg_val |= key[j++] << 8;
2542                         reg_val |= key[j++] << 16;
2543                         reg_val |= key[j++] << 24;
2544                         wr32(hw, I40E_PFQF_HKEY(i), reg_val);
2545                 }
2546         }
2547         return 0;
2548 }
2549
2550 /**
2551  * i40e_get_priv_flags - report device private flags
2552  * @dev: network interface device structure
2553  *
2554  * The get string set count and the string set should be matched for each
2555  * flag returned.  Add new strings for each flag to the i40e_priv_flags_strings
2556  * array.
2557  *
2558  * Returns a u32 bitmap of flags.
2559  **/
2560 static u32 i40e_get_priv_flags(struct net_device *dev)
2561 {
2562         struct i40e_netdev_priv *np = netdev_priv(dev);
2563         struct i40e_vsi *vsi = np->vsi;
2564         struct i40e_pf *pf = vsi->back;
2565         u32 ret_flags = 0;
2566
2567         ret_flags |= pf->hw.func_caps.npar_enable ?
2568                 I40E_PRIV_FLAGS_NPAR_FLAG : 0;
2569
2570         return ret_flags;
2571 }
2572
2573 static const struct ethtool_ops i40e_ethtool_ops = {
2574         .get_settings           = i40e_get_settings,
2575         .set_settings           = i40e_set_settings,
2576         .get_drvinfo            = i40e_get_drvinfo,
2577         .get_regs_len           = i40e_get_regs_len,
2578         .get_regs               = i40e_get_regs,
2579         .nway_reset             = i40e_nway_reset,
2580         .get_link               = ethtool_op_get_link,
2581         .get_wol                = i40e_get_wol,
2582         .set_wol                = i40e_set_wol,
2583         .set_eeprom             = i40e_set_eeprom,
2584         .get_eeprom_len         = i40e_get_eeprom_len,
2585         .get_eeprom             = i40e_get_eeprom,
2586         .get_ringparam          = i40e_get_ringparam,
2587         .set_ringparam          = i40e_set_ringparam,
2588         .get_pauseparam         = i40e_get_pauseparam,
2589         .set_pauseparam         = i40e_set_pauseparam,
2590         .get_msglevel           = i40e_get_msglevel,
2591         .set_msglevel           = i40e_set_msglevel,
2592         .get_rxnfc              = i40e_get_rxnfc,
2593         .set_rxnfc              = i40e_set_rxnfc,
2594         .self_test              = i40e_diag_test,
2595         .get_strings            = i40e_get_strings,
2596         .set_phys_id            = i40e_set_phys_id,
2597         .get_sset_count         = i40e_get_sset_count,
2598         .get_ethtool_stats      = i40e_get_ethtool_stats,
2599         .get_coalesce           = i40e_get_coalesce,
2600         .set_coalesce           = i40e_set_coalesce,
2601         .get_rxfh_key_size      = i40e_get_rxfh_key_size,
2602         .get_rxfh_indir_size    = i40e_get_rxfh_indir_size,
2603         .get_rxfh               = i40e_get_rxfh,
2604         .set_rxfh               = i40e_set_rxfh,
2605         .get_channels           = i40e_get_channels,
2606         .set_channels           = i40e_set_channels,
2607         .get_ts_info            = i40e_get_ts_info,
2608         .get_priv_flags         = i40e_get_priv_flags,
2609 };
2610
2611 void i40e_set_ethtool_ops(struct net_device *netdev)
2612 {
2613         netdev->ethtool_ops = &i40e_ethtool_ops;
2614 }