linux/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
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   1/*******************************************************************************
   2 *
   3 * Intel Ethernet Controller XL710 Family Linux Driver
   4 * Copyright(c) 2013 - 2016 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
  32struct 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
  53static 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
  67static 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
  82static const struct i40e_stats i40e_gstrings_misc_stats[] = {
  83        I40E_VSI_STAT("rx_unicast", eth_stats.rx_unicast),
  84        I40E_VSI_STAT("tx_unicast", eth_stats.tx_unicast),
  85        I40E_VSI_STAT("rx_multicast", eth_stats.rx_multicast),
  86        I40E_VSI_STAT("tx_multicast", eth_stats.tx_multicast),
  87        I40E_VSI_STAT("rx_broadcast", eth_stats.rx_broadcast),
  88        I40E_VSI_STAT("tx_broadcast", eth_stats.tx_broadcast),
  89        I40E_VSI_STAT("rx_unknown_protocol", eth_stats.rx_unknown_protocol),
  90        I40E_VSI_STAT("tx_linearize", tx_linearize),
  91        I40E_VSI_STAT("tx_force_wb", tx_force_wb),
  92        I40E_VSI_STAT("tx_lost_interrupt", tx_lost_interrupt),
  93        I40E_VSI_STAT("rx_alloc_fail", rx_buf_failed),
  94        I40E_VSI_STAT("rx_pg_alloc_fail", rx_page_failed),
  95};
  96
  97/* These PF_STATs might look like duplicates of some NETDEV_STATs,
  98 * but they are separate.  This device supports Virtualization, and
  99 * as such might have several netdevs supporting VMDq and FCoE going
 100 * through a single port.  The NETDEV_STATs are for individual netdevs
 101 * seen at the top of the stack, and the PF_STATs are for the physical
 102 * function at the bottom of the stack hosting those netdevs.
 103 *
 104 * The PF_STATs are appended to the netdev stats only when ethtool -S
 105 * is queried on the base PF netdev, not on the VMDq or FCoE netdev.
 106 */
 107static struct i40e_stats i40e_gstrings_stats[] = {
 108        I40E_PF_STAT("rx_bytes", stats.eth.rx_bytes),
 109        I40E_PF_STAT("tx_bytes", stats.eth.tx_bytes),
 110        I40E_PF_STAT("rx_unicast", stats.eth.rx_unicast),
 111        I40E_PF_STAT("tx_unicast", stats.eth.tx_unicast),
 112        I40E_PF_STAT("rx_multicast", stats.eth.rx_multicast),
 113        I40E_PF_STAT("tx_multicast", stats.eth.tx_multicast),
 114        I40E_PF_STAT("rx_broadcast", stats.eth.rx_broadcast),
 115        I40E_PF_STAT("tx_broadcast", stats.eth.tx_broadcast),
 116        I40E_PF_STAT("tx_errors", stats.eth.tx_errors),
 117        I40E_PF_STAT("rx_dropped", stats.eth.rx_discards),
 118        I40E_PF_STAT("tx_dropped_link_down", stats.tx_dropped_link_down),
 119        I40E_PF_STAT("rx_crc_errors", stats.crc_errors),
 120        I40E_PF_STAT("illegal_bytes", stats.illegal_bytes),
 121        I40E_PF_STAT("mac_local_faults", stats.mac_local_faults),
 122        I40E_PF_STAT("mac_remote_faults", stats.mac_remote_faults),
 123        I40E_PF_STAT("tx_timeout", tx_timeout_count),
 124        I40E_PF_STAT("rx_csum_bad", hw_csum_rx_error),
 125        I40E_PF_STAT("rx_length_errors", stats.rx_length_errors),
 126        I40E_PF_STAT("link_xon_rx", stats.link_xon_rx),
 127        I40E_PF_STAT("link_xoff_rx", stats.link_xoff_rx),
 128        I40E_PF_STAT("link_xon_tx", stats.link_xon_tx),
 129        I40E_PF_STAT("link_xoff_tx", stats.link_xoff_tx),
 130        I40E_PF_STAT("rx_size_64", stats.rx_size_64),
 131        I40E_PF_STAT("rx_size_127", stats.rx_size_127),
 132        I40E_PF_STAT("rx_size_255", stats.rx_size_255),
 133        I40E_PF_STAT("rx_size_511", stats.rx_size_511),
 134        I40E_PF_STAT("rx_size_1023", stats.rx_size_1023),
 135        I40E_PF_STAT("rx_size_1522", stats.rx_size_1522),
 136        I40E_PF_STAT("rx_size_big", stats.rx_size_big),
 137        I40E_PF_STAT("tx_size_64", stats.tx_size_64),
 138        I40E_PF_STAT("tx_size_127", stats.tx_size_127),
 139        I40E_PF_STAT("tx_size_255", stats.tx_size_255),
 140        I40E_PF_STAT("tx_size_511", stats.tx_size_511),
 141        I40E_PF_STAT("tx_size_1023", stats.tx_size_1023),
 142        I40E_PF_STAT("tx_size_1522", stats.tx_size_1522),
 143        I40E_PF_STAT("tx_size_big", stats.tx_size_big),
 144        I40E_PF_STAT("rx_undersize", stats.rx_undersize),
 145        I40E_PF_STAT("rx_fragments", stats.rx_fragments),
 146        I40E_PF_STAT("rx_oversize", stats.rx_oversize),
 147        I40E_PF_STAT("rx_jabber", stats.rx_jabber),
 148        I40E_PF_STAT("VF_admin_queue_requests", vf_aq_requests),
 149        I40E_PF_STAT("arq_overflows", arq_overflows),
 150        I40E_PF_STAT("rx_hwtstamp_cleared", rx_hwtstamp_cleared),
 151        I40E_PF_STAT("fdir_flush_cnt", fd_flush_cnt),
 152        I40E_PF_STAT("fdir_atr_match", stats.fd_atr_match),
 153        I40E_PF_STAT("fdir_atr_tunnel_match", stats.fd_atr_tunnel_match),
 154        I40E_PF_STAT("fdir_atr_status", stats.fd_atr_status),
 155        I40E_PF_STAT("fdir_sb_match", stats.fd_sb_match),
 156        I40E_PF_STAT("fdir_sb_status", stats.fd_sb_status),
 157
 158        /* LPI stats */
 159        I40E_PF_STAT("tx_lpi_status", stats.tx_lpi_status),
 160        I40E_PF_STAT("rx_lpi_status", stats.rx_lpi_status),
 161        I40E_PF_STAT("tx_lpi_count", stats.tx_lpi_count),
 162        I40E_PF_STAT("rx_lpi_count", stats.rx_lpi_count),
 163};
 164
 165#ifdef I40E_FCOE
 166static const struct i40e_stats i40e_gstrings_fcoe_stats[] = {
 167        I40E_VSI_STAT("fcoe_bad_fccrc", fcoe_stats.fcoe_bad_fccrc),
 168        I40E_VSI_STAT("rx_fcoe_dropped", fcoe_stats.rx_fcoe_dropped),
 169        I40E_VSI_STAT("rx_fcoe_packets", fcoe_stats.rx_fcoe_packets),
 170        I40E_VSI_STAT("rx_fcoe_dwords", fcoe_stats.rx_fcoe_dwords),
 171        I40E_VSI_STAT("fcoe_ddp_count", fcoe_stats.fcoe_ddp_count),
 172        I40E_VSI_STAT("fcoe_last_error", fcoe_stats.fcoe_last_error),
 173        I40E_VSI_STAT("tx_fcoe_packets", fcoe_stats.tx_fcoe_packets),
 174        I40E_VSI_STAT("tx_fcoe_dwords", fcoe_stats.tx_fcoe_dwords),
 175};
 176
 177#endif /* I40E_FCOE */
 178#define I40E_QUEUE_STATS_LEN(n) \
 179        (((struct i40e_netdev_priv *)netdev_priv((n)))->vsi->num_queue_pairs \
 180            * 2 /* Tx and Rx together */                                     \
 181            * (sizeof(struct i40e_queue_stats) / sizeof(u64)))
 182#define I40E_GLOBAL_STATS_LEN   ARRAY_SIZE(i40e_gstrings_stats)
 183#define I40E_NETDEV_STATS_LEN   ARRAY_SIZE(i40e_gstrings_net_stats)
 184#define I40E_MISC_STATS_LEN     ARRAY_SIZE(i40e_gstrings_misc_stats)
 185#ifdef I40E_FCOE
 186#define I40E_FCOE_STATS_LEN     ARRAY_SIZE(i40e_gstrings_fcoe_stats)
 187#define I40E_VSI_STATS_LEN(n)   (I40E_NETDEV_STATS_LEN + \
 188                                 I40E_FCOE_STATS_LEN + \
 189                                 I40E_MISC_STATS_LEN + \
 190                                 I40E_QUEUE_STATS_LEN((n)))
 191#else
 192#define I40E_VSI_STATS_LEN(n)   (I40E_NETDEV_STATS_LEN + \
 193                                 I40E_MISC_STATS_LEN + \
 194                                 I40E_QUEUE_STATS_LEN((n)))
 195#endif /* I40E_FCOE */
 196#define I40E_PFC_STATS_LEN ( \
 197                (FIELD_SIZEOF(struct i40e_pf, stats.priority_xoff_rx) + \
 198                 FIELD_SIZEOF(struct i40e_pf, stats.priority_xon_rx) + \
 199                 FIELD_SIZEOF(struct i40e_pf, stats.priority_xoff_tx) + \
 200                 FIELD_SIZEOF(struct i40e_pf, stats.priority_xon_tx) + \
 201                 FIELD_SIZEOF(struct i40e_pf, stats.priority_xon_2_xoff)) \
 202                 / sizeof(u64))
 203#define I40E_VEB_TC_STATS_LEN ( \
 204                (FIELD_SIZEOF(struct i40e_veb, tc_stats.tc_rx_packets) + \
 205                 FIELD_SIZEOF(struct i40e_veb, tc_stats.tc_rx_bytes) + \
 206                 FIELD_SIZEOF(struct i40e_veb, tc_stats.tc_tx_packets) + \
 207                 FIELD_SIZEOF(struct i40e_veb, tc_stats.tc_tx_bytes)) \
 208                 / sizeof(u64))
 209#define I40E_VEB_STATS_LEN      ARRAY_SIZE(i40e_gstrings_veb_stats)
 210#define I40E_VEB_STATS_TOTAL    (I40E_VEB_STATS_LEN + I40E_VEB_TC_STATS_LEN)
 211#define I40E_PF_STATS_LEN(n)    (I40E_GLOBAL_STATS_LEN + \
 212                                 I40E_PFC_STATS_LEN + \
 213                                 I40E_VSI_STATS_LEN((n)))
 214
 215enum i40e_ethtool_test_id {
 216        I40E_ETH_TEST_REG = 0,
 217        I40E_ETH_TEST_EEPROM,
 218        I40E_ETH_TEST_INTR,
 219        I40E_ETH_TEST_LOOPBACK,
 220        I40E_ETH_TEST_LINK,
 221};
 222
 223static const char i40e_gstrings_test[][ETH_GSTRING_LEN] = {
 224        "Register test  (offline)",
 225        "Eeprom test    (offline)",
 226        "Interrupt test (offline)",
 227        "Loopback test  (offline)",
 228        "Link test   (on/offline)"
 229};
 230
 231#define I40E_TEST_LEN (sizeof(i40e_gstrings_test) / ETH_GSTRING_LEN)
 232
 233static const char i40e_priv_flags_strings[][ETH_GSTRING_LEN] = {
 234        "NPAR",
 235        "LinkPolling",
 236        "flow-director-atr",
 237        "veb-stats",
 238        "packet-split",
 239        "hw-atr-eviction",
 240};
 241
 242#define I40E_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_priv_flags_strings)
 243
 244/**
 245 * i40e_partition_setting_complaint - generic complaint for MFP restriction
 246 * @pf: the PF struct
 247 **/
 248static void i40e_partition_setting_complaint(struct i40e_pf *pf)
 249{
 250        dev_info(&pf->pdev->dev,
 251                 "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");
 252}
 253
 254/**
 255 * i40e_get_settings_link_up - Get the Link settings for when link is up
 256 * @hw: hw structure
 257 * @ecmd: ethtool command to fill in
 258 * @netdev: network interface device structure
 259 *
 260 **/
 261static void i40e_get_settings_link_up(struct i40e_hw *hw,
 262                                      struct ethtool_cmd *ecmd,
 263                                      struct net_device *netdev,
 264                                      struct i40e_pf *pf)
 265{
 266        struct i40e_link_status *hw_link_info = &hw->phy.link_info;
 267        u32 link_speed = hw_link_info->link_speed;
 268
 269        /* Initialize supported and advertised settings based on phy settings */
 270        switch (hw_link_info->phy_type) {
 271        case I40E_PHY_TYPE_40GBASE_CR4:
 272        case I40E_PHY_TYPE_40GBASE_CR4_CU:
 273                ecmd->supported = SUPPORTED_Autoneg |
 274                                  SUPPORTED_40000baseCR4_Full;
 275                ecmd->advertising = ADVERTISED_Autoneg |
 276                                    ADVERTISED_40000baseCR4_Full;
 277                break;
 278        case I40E_PHY_TYPE_XLAUI:
 279        case I40E_PHY_TYPE_XLPPI:
 280        case I40E_PHY_TYPE_40GBASE_AOC:
 281                ecmd->supported = SUPPORTED_40000baseCR4_Full;
 282                break;
 283        case I40E_PHY_TYPE_40GBASE_SR4:
 284                ecmd->supported = SUPPORTED_40000baseSR4_Full;
 285                break;
 286        case I40E_PHY_TYPE_40GBASE_LR4:
 287                ecmd->supported = SUPPORTED_40000baseLR4_Full;
 288                break;
 289        case I40E_PHY_TYPE_10GBASE_SR:
 290        case I40E_PHY_TYPE_10GBASE_LR:
 291        case I40E_PHY_TYPE_1000BASE_SX:
 292        case I40E_PHY_TYPE_1000BASE_LX:
 293                ecmd->supported = SUPPORTED_10000baseT_Full;
 294                if (hw_link_info->module_type[2] &
 295                    I40E_MODULE_TYPE_1000BASE_SX ||
 296                    hw_link_info->module_type[2] &
 297                    I40E_MODULE_TYPE_1000BASE_LX) {
 298                        ecmd->supported |= SUPPORTED_1000baseT_Full;
 299                        if (hw_link_info->requested_speeds &
 300                            I40E_LINK_SPEED_1GB)
 301                                ecmd->advertising |= ADVERTISED_1000baseT_Full;
 302                }
 303                if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 304                        ecmd->advertising |= ADVERTISED_10000baseT_Full;
 305                break;
 306        case I40E_PHY_TYPE_10GBASE_T:
 307        case I40E_PHY_TYPE_1000BASE_T:
 308                ecmd->supported = SUPPORTED_Autoneg |
 309                                  SUPPORTED_10000baseT_Full |
 310                                  SUPPORTED_1000baseT_Full;
 311                ecmd->advertising = ADVERTISED_Autoneg;
 312                if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 313                        ecmd->advertising |= ADVERTISED_10000baseT_Full;
 314                if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 315                        ecmd->advertising |= ADVERTISED_1000baseT_Full;
 316                break;
 317        case I40E_PHY_TYPE_1000BASE_T_OPTICAL:
 318                ecmd->supported = SUPPORTED_Autoneg |
 319                                  SUPPORTED_1000baseT_Full;
 320                ecmd->advertising = ADVERTISED_Autoneg |
 321                                    ADVERTISED_1000baseT_Full;
 322                break;
 323        case I40E_PHY_TYPE_100BASE_TX:
 324                ecmd->supported = SUPPORTED_Autoneg |
 325                                  SUPPORTED_100baseT_Full;
 326                if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB)
 327                        ecmd->advertising |= ADVERTISED_100baseT_Full;
 328                break;
 329        case I40E_PHY_TYPE_10GBASE_CR1_CU:
 330        case I40E_PHY_TYPE_10GBASE_CR1:
 331                ecmd->supported = SUPPORTED_Autoneg |
 332                                  SUPPORTED_10000baseT_Full;
 333                ecmd->advertising = ADVERTISED_Autoneg |
 334                                    ADVERTISED_10000baseT_Full;
 335                break;
 336        case I40E_PHY_TYPE_XAUI:
 337        case I40E_PHY_TYPE_XFI:
 338        case I40E_PHY_TYPE_SFI:
 339        case I40E_PHY_TYPE_10GBASE_SFPP_CU:
 340        case I40E_PHY_TYPE_10GBASE_AOC:
 341                ecmd->supported = SUPPORTED_10000baseT_Full;
 342                break;
 343        case I40E_PHY_TYPE_SGMII:
 344                ecmd->supported = SUPPORTED_Autoneg |
 345                                  SUPPORTED_1000baseT_Full;
 346                if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 347                        ecmd->advertising |= ADVERTISED_1000baseT_Full;
 348                if (pf->flags & I40E_FLAG_100M_SGMII_CAPABLE) {
 349                        ecmd->supported |= SUPPORTED_100baseT_Full;
 350                        if (hw_link_info->requested_speeds &
 351                            I40E_LINK_SPEED_100MB)
 352                                ecmd->advertising |= ADVERTISED_100baseT_Full;
 353                }
 354                break;
 355        /* Backplane is set based on supported phy types in get_settings
 356         * so don't set anything here but don't warn either
 357         */
 358        case I40E_PHY_TYPE_40GBASE_KR4:
 359        case I40E_PHY_TYPE_20GBASE_KR2:
 360        case I40E_PHY_TYPE_10GBASE_KR:
 361        case I40E_PHY_TYPE_10GBASE_KX4:
 362        case I40E_PHY_TYPE_1000BASE_KX:
 363                break;
 364        default:
 365                /* if we got here and link is up something bad is afoot */
 366                netdev_info(netdev, "WARNING: Link is up but PHY type 0x%x is not recognized.\n",
 367                            hw_link_info->phy_type);
 368        }
 369
 370        /* Set speed and duplex */
 371        switch (link_speed) {
 372        case I40E_LINK_SPEED_40GB:
 373                ethtool_cmd_speed_set(ecmd, SPEED_40000);
 374                break;
 375        case I40E_LINK_SPEED_20GB:
 376                ethtool_cmd_speed_set(ecmd, SPEED_20000);
 377                break;
 378        case I40E_LINK_SPEED_10GB:
 379                ethtool_cmd_speed_set(ecmd, SPEED_10000);
 380                break;
 381        case I40E_LINK_SPEED_1GB:
 382                ethtool_cmd_speed_set(ecmd, SPEED_1000);
 383                break;
 384        case I40E_LINK_SPEED_100MB:
 385                ethtool_cmd_speed_set(ecmd, SPEED_100);
 386                break;
 387        default:
 388                break;
 389        }
 390        ecmd->duplex = DUPLEX_FULL;
 391}
 392
 393/**
 394 * i40e_get_settings_link_down - Get the Link settings for when link is down
 395 * @hw: hw structure
 396 * @ecmd: ethtool command to fill in
 397 *
 398 * Reports link settings that can be determined when link is down
 399 **/
 400static void i40e_get_settings_link_down(struct i40e_hw *hw,
 401                                        struct ethtool_cmd *ecmd,
 402                                        struct i40e_pf *pf)
 403{
 404        enum i40e_aq_capabilities_phy_type phy_types = hw->phy.phy_types;
 405
 406        /* link is down and the driver needs to fall back on
 407         * supported phy types to figure out what info to display
 408         */
 409        ecmd->supported = 0x0;
 410        ecmd->advertising = 0x0;
 411        if (phy_types & I40E_CAP_PHY_TYPE_SGMII) {
 412                ecmd->supported |= SUPPORTED_Autoneg |
 413                                   SUPPORTED_1000baseT_Full;
 414                ecmd->advertising |= ADVERTISED_Autoneg |
 415                                     ADVERTISED_1000baseT_Full;
 416                if (pf->hw.mac.type == I40E_MAC_X722) {
 417                        ecmd->supported |= SUPPORTED_100baseT_Full;
 418                        ecmd->advertising |= ADVERTISED_100baseT_Full;
 419                        if (pf->flags & I40E_FLAG_100M_SGMII_CAPABLE) {
 420                                ecmd->supported |= SUPPORTED_100baseT_Full;
 421                                ecmd->advertising |= ADVERTISED_100baseT_Full;
 422                        }
 423                }
 424        }
 425        if (phy_types & I40E_CAP_PHY_TYPE_XAUI ||
 426            phy_types & I40E_CAP_PHY_TYPE_XFI ||
 427            phy_types & I40E_CAP_PHY_TYPE_SFI ||
 428            phy_types & I40E_CAP_PHY_TYPE_10GBASE_SFPP_CU ||
 429            phy_types & I40E_CAP_PHY_TYPE_10GBASE_AOC)
 430                ecmd->supported |= SUPPORTED_10000baseT_Full;
 431        if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1_CU ||
 432            phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1 ||
 433            phy_types & I40E_CAP_PHY_TYPE_10GBASE_T ||
 434            phy_types & I40E_CAP_PHY_TYPE_10GBASE_SR ||
 435            phy_types & I40E_CAP_PHY_TYPE_10GBASE_LR) {
 436                ecmd->supported |= SUPPORTED_Autoneg |
 437                                   SUPPORTED_10000baseT_Full;
 438                ecmd->advertising |= ADVERTISED_Autoneg |
 439                                     ADVERTISED_10000baseT_Full;
 440        }
 441        if (phy_types & I40E_CAP_PHY_TYPE_XLAUI ||
 442            phy_types & I40E_CAP_PHY_TYPE_XLPPI ||
 443            phy_types & I40E_CAP_PHY_TYPE_40GBASE_AOC)
 444                ecmd->supported |= SUPPORTED_40000baseCR4_Full;
 445        if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4_CU ||
 446            phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4) {
 447                ecmd->supported |= SUPPORTED_Autoneg |
 448                                  SUPPORTED_40000baseCR4_Full;
 449                ecmd->advertising |= ADVERTISED_Autoneg |
 450                                    ADVERTISED_40000baseCR4_Full;
 451        }
 452        if ((phy_types & I40E_CAP_PHY_TYPE_100BASE_TX) &&
 453            !(phy_types & I40E_CAP_PHY_TYPE_1000BASE_T)) {
 454                ecmd->supported |= SUPPORTED_Autoneg |
 455                                   SUPPORTED_100baseT_Full;
 456                ecmd->advertising |= ADVERTISED_Autoneg |
 457                                     ADVERTISED_100baseT_Full;
 458        }
 459        if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_T ||
 460            phy_types & I40E_CAP_PHY_TYPE_1000BASE_SX ||
 461            phy_types & I40E_CAP_PHY_TYPE_1000BASE_LX ||
 462            phy_types & I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL) {
 463                ecmd->supported |= SUPPORTED_Autoneg |
 464                                   SUPPORTED_1000baseT_Full;
 465                ecmd->advertising |= ADVERTISED_Autoneg |
 466                                     ADVERTISED_1000baseT_Full;
 467        }
 468        if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_SR4)
 469                ecmd->supported |= SUPPORTED_40000baseSR4_Full;
 470        if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_LR4)
 471                ecmd->supported |= SUPPORTED_40000baseLR4_Full;
 472
 473        /* With no link speed and duplex are unknown */
 474        ethtool_cmd_speed_set(ecmd, SPEED_UNKNOWN);
 475        ecmd->duplex = DUPLEX_UNKNOWN;
 476}
 477
 478/**
 479 * i40e_get_settings - Get Link Speed and Duplex settings
 480 * @netdev: network interface device structure
 481 * @ecmd: ethtool command
 482 *
 483 * Reports speed/duplex settings based on media_type
 484 **/
 485static int i40e_get_settings(struct net_device *netdev,
 486                             struct ethtool_cmd *ecmd)
 487{
 488        struct i40e_netdev_priv *np = netdev_priv(netdev);
 489        struct i40e_pf *pf = np->vsi->back;
 490        struct i40e_hw *hw = &pf->hw;
 491        struct i40e_link_status *hw_link_info = &hw->phy.link_info;
 492        bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP;
 493
 494        if (link_up)
 495                i40e_get_settings_link_up(hw, ecmd, netdev, pf);
 496        else
 497                i40e_get_settings_link_down(hw, ecmd, pf);
 498
 499        /* Now set the settings that don't rely on link being up/down */
 500
 501        /* For backplane, supported and advertised are only reliant on the
 502         * phy types the NVM specifies are supported.
 503         */
 504        if (hw->device_id == I40E_DEV_ID_KX_B ||
 505            hw->device_id == I40E_DEV_ID_KX_C ||
 506            hw->device_id == I40E_DEV_ID_20G_KR2 ||
 507            hw->device_id ==  I40E_DEV_ID_20G_KR2_A) {
 508                ecmd->supported = SUPPORTED_Autoneg;
 509                ecmd->advertising = ADVERTISED_Autoneg;
 510                if (hw->phy.phy_types & I40E_CAP_PHY_TYPE_40GBASE_KR4) {
 511                        ecmd->supported |= SUPPORTED_40000baseKR4_Full;
 512                        ecmd->advertising |= ADVERTISED_40000baseKR4_Full;
 513                }
 514                if (hw->phy.phy_types & I40E_CAP_PHY_TYPE_20GBASE_KR2) {
 515                        ecmd->supported |= SUPPORTED_20000baseKR2_Full;
 516                        ecmd->advertising |= ADVERTISED_20000baseKR2_Full;
 517                }
 518                if (hw->phy.phy_types & I40E_CAP_PHY_TYPE_10GBASE_KR) {
 519                        ecmd->supported |= SUPPORTED_10000baseKR_Full;
 520                        ecmd->advertising |= ADVERTISED_10000baseKR_Full;
 521                }
 522                if (hw->phy.phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4) {
 523                        ecmd->supported |= SUPPORTED_10000baseKX4_Full;
 524                        ecmd->advertising |= ADVERTISED_10000baseKX4_Full;
 525                }
 526                if (hw->phy.phy_types & I40E_CAP_PHY_TYPE_1000BASE_KX) {
 527                        ecmd->supported |= SUPPORTED_1000baseKX_Full;
 528                        ecmd->advertising |= ADVERTISED_1000baseKX_Full;
 529                }
 530        }
 531
 532        /* Set autoneg settings */
 533        ecmd->autoneg = ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
 534                          AUTONEG_ENABLE : AUTONEG_DISABLE);
 535
 536        switch (hw->phy.media_type) {
 537        case I40E_MEDIA_TYPE_BACKPLANE:
 538                ecmd->supported |= SUPPORTED_Autoneg |
 539                                   SUPPORTED_Backplane;
 540                ecmd->advertising |= ADVERTISED_Autoneg |
 541                                     ADVERTISED_Backplane;
 542                ecmd->port = PORT_NONE;
 543                break;
 544        case I40E_MEDIA_TYPE_BASET:
 545                ecmd->supported |= SUPPORTED_TP;
 546                ecmd->advertising |= ADVERTISED_TP;
 547                ecmd->port = PORT_TP;
 548                break;
 549        case I40E_MEDIA_TYPE_DA:
 550        case I40E_MEDIA_TYPE_CX4:
 551                ecmd->supported |= SUPPORTED_FIBRE;
 552                ecmd->advertising |= ADVERTISED_FIBRE;
 553                ecmd->port = PORT_DA;
 554                break;
 555        case I40E_MEDIA_TYPE_FIBER:
 556                ecmd->supported |= SUPPORTED_FIBRE;
 557                ecmd->port = PORT_FIBRE;
 558                break;
 559        case I40E_MEDIA_TYPE_UNKNOWN:
 560        default:
 561                ecmd->port = PORT_OTHER;
 562                break;
 563        }
 564
 565        /* Set transceiver */
 566        ecmd->transceiver = XCVR_EXTERNAL;
 567
 568        /* Set flow control settings */
 569        ecmd->supported |= SUPPORTED_Pause;
 570
 571        switch (hw->fc.requested_mode) {
 572        case I40E_FC_FULL:
 573                ecmd->advertising |= ADVERTISED_Pause;
 574                break;
 575        case I40E_FC_TX_PAUSE:
 576                ecmd->advertising |= ADVERTISED_Asym_Pause;
 577                break;
 578        case I40E_FC_RX_PAUSE:
 579                ecmd->advertising |= (ADVERTISED_Pause |
 580                                      ADVERTISED_Asym_Pause);
 581                break;
 582        default:
 583                ecmd->advertising &= ~(ADVERTISED_Pause |
 584                                       ADVERTISED_Asym_Pause);
 585                break;
 586        }
 587
 588        return 0;
 589}
 590
 591/**
 592 * i40e_set_settings - Set Speed and Duplex
 593 * @netdev: network interface device structure
 594 * @ecmd: ethtool command
 595 *
 596 * Set speed/duplex per media_types advertised/forced
 597 **/
 598static int i40e_set_settings(struct net_device *netdev,
 599                             struct ethtool_cmd *ecmd)
 600{
 601        struct i40e_netdev_priv *np = netdev_priv(netdev);
 602        struct i40e_aq_get_phy_abilities_resp abilities;
 603        struct i40e_aq_set_phy_config config;
 604        struct i40e_pf *pf = np->vsi->back;
 605        struct i40e_vsi *vsi = np->vsi;
 606        struct i40e_hw *hw = &pf->hw;
 607        struct ethtool_cmd safe_ecmd;
 608        i40e_status status = 0;
 609        bool change = false;
 610        int err = 0;
 611        u8 autoneg;
 612        u32 advertise;
 613
 614        /* Changing port settings is not supported if this isn't the
 615         * port's controlling PF
 616         */
 617        if (hw->partition_id != 1) {
 618                i40e_partition_setting_complaint(pf);
 619                return -EOPNOTSUPP;
 620        }
 621
 622        if (vsi != pf->vsi[pf->lan_vsi])
 623                return -EOPNOTSUPP;
 624
 625        if (hw->phy.media_type != I40E_MEDIA_TYPE_BASET &&
 626            hw->phy.media_type != I40E_MEDIA_TYPE_FIBER &&
 627            hw->phy.media_type != I40E_MEDIA_TYPE_BACKPLANE &&
 628            hw->phy.link_info.link_info & I40E_AQ_LINK_UP)
 629                return -EOPNOTSUPP;
 630
 631        if (hw->device_id == I40E_DEV_ID_KX_B ||
 632            hw->device_id == I40E_DEV_ID_KX_C ||
 633            hw->device_id == I40E_DEV_ID_20G_KR2 ||
 634            hw->device_id == I40E_DEV_ID_20G_KR2_A) {
 635                netdev_info(netdev, "Changing settings is not supported on backplane.\n");
 636                return -EOPNOTSUPP;
 637        }
 638
 639        /* get our own copy of the bits to check against */
 640        memset(&safe_ecmd, 0, sizeof(struct ethtool_cmd));
 641        i40e_get_settings(netdev, &safe_ecmd);
 642
 643        /* save autoneg and speed out of ecmd */
 644        autoneg = ecmd->autoneg;
 645        advertise = ecmd->advertising;
 646
 647        /* set autoneg and speed back to what they currently are */
 648        ecmd->autoneg = safe_ecmd.autoneg;
 649        ecmd->advertising = safe_ecmd.advertising;
 650
 651        ecmd->cmd = safe_ecmd.cmd;
 652        /* If ecmd and safe_ecmd are not the same now, then they are
 653         * trying to set something that we do not support
 654         */
 655        if (memcmp(ecmd, &safe_ecmd, sizeof(struct ethtool_cmd)))
 656                return -EOPNOTSUPP;
 657
 658        while (test_bit(__I40E_CONFIG_BUSY, &vsi->state))
 659                usleep_range(1000, 2000);
 660
 661        /* Get the current phy config */
 662        status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities,
 663                                              NULL);
 664        if (status)
 665                return -EAGAIN;
 666
 667        /* Copy abilities to config in case autoneg is not
 668         * set below
 669         */
 670        memset(&config, 0, sizeof(struct i40e_aq_set_phy_config));
 671        config.abilities = abilities.abilities;
 672
 673        /* Check autoneg */
 674        if (autoneg == AUTONEG_ENABLE) {
 675                /* If autoneg was not already enabled */
 676                if (!(hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED)) {
 677                        /* If autoneg is not supported, return error */
 678                        if (!(safe_ecmd.supported & SUPPORTED_Autoneg)) {
 679                                netdev_info(netdev, "Autoneg not supported on this phy\n");
 680                                return -EINVAL;
 681                        }
 682                        /* Autoneg is allowed to change */
 683                        config.abilities = abilities.abilities |
 684                                           I40E_AQ_PHY_ENABLE_AN;
 685                        change = true;
 686                }
 687        } else {
 688                /* If autoneg is currently enabled */
 689                if (hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED) {
 690                        /* If autoneg is supported 10GBASE_T is the only PHY
 691                         * that can disable it, so otherwise return error
 692                         */
 693                        if (safe_ecmd.supported & SUPPORTED_Autoneg &&
 694                            hw->phy.link_info.phy_type !=
 695                            I40E_PHY_TYPE_10GBASE_T) {
 696                                netdev_info(netdev, "Autoneg cannot be disabled on this phy\n");
 697                                return -EINVAL;
 698                        }
 699                        /* Autoneg is allowed to change */
 700                        config.abilities = abilities.abilities &
 701                                           ~I40E_AQ_PHY_ENABLE_AN;
 702                        change = true;
 703                }
 704        }
 705
 706        if (advertise & ~safe_ecmd.supported)
 707                return -EINVAL;
 708
 709        if (advertise & ADVERTISED_100baseT_Full)
 710                config.link_speed |= I40E_LINK_SPEED_100MB;
 711        if (advertise & ADVERTISED_1000baseT_Full ||
 712            advertise & ADVERTISED_1000baseKX_Full)
 713                config.link_speed |= I40E_LINK_SPEED_1GB;
 714        if (advertise & ADVERTISED_10000baseT_Full ||
 715            advertise & ADVERTISED_10000baseKX4_Full ||
 716            advertise & ADVERTISED_10000baseKR_Full)
 717                config.link_speed |= I40E_LINK_SPEED_10GB;
 718        if (advertise & ADVERTISED_20000baseKR2_Full)
 719                config.link_speed |= I40E_LINK_SPEED_20GB;
 720        if (advertise & ADVERTISED_40000baseKR4_Full ||
 721            advertise & ADVERTISED_40000baseCR4_Full ||
 722            advertise & ADVERTISED_40000baseSR4_Full ||
 723            advertise & ADVERTISED_40000baseLR4_Full)
 724                config.link_speed |= I40E_LINK_SPEED_40GB;
 725
 726        /* If speed didn't get set, set it to what it currently is.
 727         * This is needed because if advertise is 0 (as it is when autoneg
 728         * is disabled) then speed won't get set.
 729         */
 730        if (!config.link_speed)
 731                config.link_speed = abilities.link_speed;
 732
 733        if (change || (abilities.link_speed != config.link_speed)) {
 734                /* copy over the rest of the abilities */
 735                config.phy_type = abilities.phy_type;
 736                config.eee_capability = abilities.eee_capability;
 737                config.eeer = abilities.eeer_val;
 738                config.low_power_ctrl = abilities.d3_lpan;
 739
 740                /* save the requested speeds */
 741                hw->phy.link_info.requested_speeds = config.link_speed;
 742                /* set link and auto negotiation so changes take effect */
 743                config.abilities |= I40E_AQ_PHY_ENABLE_ATOMIC_LINK;
 744                /* If link is up put link down */
 745                if (hw->phy.link_info.link_info & I40E_AQ_LINK_UP) {
 746                        /* Tell the OS link is going down, the link will go
 747                         * back up when fw says it is ready asynchronously
 748                         */
 749                        i40e_print_link_message(vsi, false);
 750                        netif_carrier_off(netdev);
 751                        netif_tx_stop_all_queues(netdev);
 752                }
 753
 754                /* make the aq call */
 755                status = i40e_aq_set_phy_config(hw, &config, NULL);
 756                if (status) {
 757                        netdev_info(netdev, "Set phy config failed, err %s aq_err %s\n",
 758                                    i40e_stat_str(hw, status),
 759                                    i40e_aq_str(hw, hw->aq.asq_last_status));
 760                        return -EAGAIN;
 761                }
 762
 763                status = i40e_update_link_info(hw);
 764                if (status)
 765                        netdev_dbg(netdev, "Updating link info failed with err %s aq_err %s\n",
 766                                   i40e_stat_str(hw, status),
 767                                   i40e_aq_str(hw, hw->aq.asq_last_status));
 768
 769        } else {
 770                netdev_info(netdev, "Nothing changed, exiting without setting anything.\n");
 771        }
 772
 773        return err;
 774}
 775
 776static int i40e_nway_reset(struct net_device *netdev)
 777{
 778        /* restart autonegotiation */
 779        struct i40e_netdev_priv *np = netdev_priv(netdev);
 780        struct i40e_pf *pf = np->vsi->back;
 781        struct i40e_hw *hw = &pf->hw;
 782        bool link_up = hw->phy.link_info.link_info & I40E_AQ_LINK_UP;
 783        i40e_status ret = 0;
 784
 785        ret = i40e_aq_set_link_restart_an(hw, link_up, NULL);
 786        if (ret) {
 787                netdev_info(netdev, "link restart failed, err %s aq_err %s\n",
 788                            i40e_stat_str(hw, ret),
 789                            i40e_aq_str(hw, hw->aq.asq_last_status));
 790                return -EIO;
 791        }
 792
 793        return 0;
 794}
 795
 796/**
 797 * i40e_get_pauseparam -  Get Flow Control status
 798 * Return tx/rx-pause status
 799 **/
 800static void i40e_get_pauseparam(struct net_device *netdev,
 801                                struct ethtool_pauseparam *pause)
 802{
 803        struct i40e_netdev_priv *np = netdev_priv(netdev);
 804        struct i40e_pf *pf = np->vsi->back;
 805        struct i40e_hw *hw = &pf->hw;
 806        struct i40e_link_status *hw_link_info = &hw->phy.link_info;
 807        struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config;
 808
 809        pause->autoneg =
 810                ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
 811                  AUTONEG_ENABLE : AUTONEG_DISABLE);
 812
 813        /* PFC enabled so report LFC as off */
 814        if (dcbx_cfg->pfc.pfcenable) {
 815                pause->rx_pause = 0;
 816                pause->tx_pause = 0;
 817                return;
 818        }
 819
 820        if (hw->fc.current_mode == I40E_FC_RX_PAUSE) {
 821                pause->rx_pause = 1;
 822        } else if (hw->fc.current_mode == I40E_FC_TX_PAUSE) {
 823                pause->tx_pause = 1;
 824        } else if (hw->fc.current_mode == I40E_FC_FULL) {
 825                pause->rx_pause = 1;
 826                pause->tx_pause = 1;
 827        }
 828}
 829
 830/**
 831 * i40e_set_pauseparam - Set Flow Control parameter
 832 * @netdev: network interface device structure
 833 * @pause: return tx/rx flow control status
 834 **/
 835static int i40e_set_pauseparam(struct net_device *netdev,
 836                               struct ethtool_pauseparam *pause)
 837{
 838        struct i40e_netdev_priv *np = netdev_priv(netdev);
 839        struct i40e_pf *pf = np->vsi->back;
 840        struct i40e_vsi *vsi = np->vsi;
 841        struct i40e_hw *hw = &pf->hw;
 842        struct i40e_link_status *hw_link_info = &hw->phy.link_info;
 843        struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config;
 844        bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP;
 845        i40e_status status;
 846        u8 aq_failures;
 847        int err = 0;
 848
 849        /* Changing the port's flow control is not supported if this isn't the
 850         * port's controlling PF
 851         */
 852        if (hw->partition_id != 1) {
 853                i40e_partition_setting_complaint(pf);
 854                return -EOPNOTSUPP;
 855        }
 856
 857        if (vsi != pf->vsi[pf->lan_vsi])
 858                return -EOPNOTSUPP;
 859
 860        if (pause->autoneg != ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
 861            AUTONEG_ENABLE : AUTONEG_DISABLE)) {
 862                netdev_info(netdev, "To change autoneg please use: ethtool -s <dev> autoneg <on|off>\n");
 863                return -EOPNOTSUPP;
 864        }
 865
 866        /* If we have link and don't have autoneg */
 867        if (!test_bit(__I40E_DOWN, &pf->state) &&
 868            !(hw_link_info->an_info & I40E_AQ_AN_COMPLETED)) {
 869                /* Send message that it might not necessarily work*/
 870                netdev_info(netdev, "Autoneg did not complete so changing settings may not result in an actual change.\n");
 871        }
 872
 873        if (dcbx_cfg->pfc.pfcenable) {
 874                netdev_info(netdev,
 875                            "Priority flow control enabled. Cannot set link flow control.\n");
 876                return -EOPNOTSUPP;
 877        }
 878
 879        if (pause->rx_pause && pause->tx_pause)
 880                hw->fc.requested_mode = I40E_FC_FULL;
 881        else if (pause->rx_pause && !pause->tx_pause)
 882                hw->fc.requested_mode = I40E_FC_RX_PAUSE;
 883        else if (!pause->rx_pause && pause->tx_pause)
 884                hw->fc.requested_mode = I40E_FC_TX_PAUSE;
 885        else if (!pause->rx_pause && !pause->tx_pause)
 886                hw->fc.requested_mode = I40E_FC_NONE;
 887        else
 888                 return -EINVAL;
 889
 890        /* Tell the OS link is going down, the link will go back up when fw
 891         * says it is ready asynchronously
 892         */
 893        i40e_print_link_message(vsi, false);
 894        netif_carrier_off(netdev);
 895        netif_tx_stop_all_queues(netdev);
 896
 897        /* Set the fc mode and only restart an if link is up*/
 898        status = i40e_set_fc(hw, &aq_failures, link_up);
 899
 900        if (aq_failures & I40E_SET_FC_AQ_FAIL_GET) {
 901                netdev_info(netdev, "Set fc failed on the get_phy_capabilities call with err %s aq_err %s\n",
 902                            i40e_stat_str(hw, status),
 903                            i40e_aq_str(hw, hw->aq.asq_last_status));
 904                err = -EAGAIN;
 905        }
 906        if (aq_failures & I40E_SET_FC_AQ_FAIL_SET) {
 907                netdev_info(netdev, "Set fc failed on the set_phy_config call with err %s aq_err %s\n",
 908                            i40e_stat_str(hw, status),
 909                            i40e_aq_str(hw, hw->aq.asq_last_status));
 910                err = -EAGAIN;
 911        }
 912        if (aq_failures & I40E_SET_FC_AQ_FAIL_UPDATE) {
 913                netdev_info(netdev, "Set fc failed on the get_link_info call with err %s aq_err %s\n",
 914                            i40e_stat_str(hw, status),
 915                            i40e_aq_str(hw, hw->aq.asq_last_status));
 916                err = -EAGAIN;
 917        }
 918
 919        if (!test_bit(__I40E_DOWN, &pf->state)) {
 920                /* Give it a little more time to try to come back */
 921                msleep(75);
 922                if (!test_bit(__I40E_DOWN, &pf->state))
 923                        return i40e_nway_reset(netdev);
 924        }
 925
 926        return err;
 927}
 928
 929static u32 i40e_get_msglevel(struct net_device *netdev)
 930{
 931        struct i40e_netdev_priv *np = netdev_priv(netdev);
 932        struct i40e_pf *pf = np->vsi->back;
 933
 934        return pf->msg_enable;
 935}
 936
 937static void i40e_set_msglevel(struct net_device *netdev, u32 data)
 938{
 939        struct i40e_netdev_priv *np = netdev_priv(netdev);
 940        struct i40e_pf *pf = np->vsi->back;
 941
 942        if (I40E_DEBUG_USER & data)
 943                pf->hw.debug_mask = data;
 944        pf->msg_enable = data;
 945}
 946
 947static int i40e_get_regs_len(struct net_device *netdev)
 948{
 949        int reg_count = 0;
 950        int i;
 951
 952        for (i = 0; i40e_reg_list[i].offset != 0; i++)
 953                reg_count += i40e_reg_list[i].elements;
 954
 955        return reg_count * sizeof(u32);
 956}
 957
 958static void i40e_get_regs(struct net_device *netdev, struct ethtool_regs *regs,
 959                          void *p)
 960{
 961        struct i40e_netdev_priv *np = netdev_priv(netdev);
 962        struct i40e_pf *pf = np->vsi->back;
 963        struct i40e_hw *hw = &pf->hw;
 964        u32 *reg_buf = p;
 965        int i, j, ri;
 966        u32 reg;
 967
 968        /* Tell ethtool which driver-version-specific regs output we have.
 969         *
 970         * At some point, if we have ethtool doing special formatting of
 971         * this data, it will rely on this version number to know how to
 972         * interpret things.  Hence, this needs to be updated if/when the
 973         * diags register table is changed.
 974         */
 975        regs->version = 1;
 976
 977        /* loop through the diags reg table for what to print */
 978        ri = 0;
 979        for (i = 0; i40e_reg_list[i].offset != 0; i++) {
 980                for (j = 0; j < i40e_reg_list[i].elements; j++) {
 981                        reg = i40e_reg_list[i].offset
 982                                + (j * i40e_reg_list[i].stride);
 983                        reg_buf[ri++] = rd32(hw, reg);
 984                }
 985        }
 986
 987}
 988
 989static int i40e_get_eeprom(struct net_device *netdev,
 990                           struct ethtool_eeprom *eeprom, u8 *bytes)
 991{
 992        struct i40e_netdev_priv *np = netdev_priv(netdev);
 993        struct i40e_hw *hw = &np->vsi->back->hw;
 994        struct i40e_pf *pf = np->vsi->back;
 995        int ret_val = 0, len, offset;
 996        u8 *eeprom_buff;
 997        u16 i, sectors;
 998        bool last;
 999        u32 magic;
1000
1001#define I40E_NVM_SECTOR_SIZE  4096
1002        if (eeprom->len == 0)
1003                return -EINVAL;
1004
1005        /* check for NVMUpdate access method */
1006        magic = hw->vendor_id | (hw->device_id << 16);
1007        if (eeprom->magic && eeprom->magic != magic) {
1008                struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom;
1009                int errno = 0;
1010
1011                /* make sure it is the right magic for NVMUpdate */
1012                if ((eeprom->magic >> 16) != hw->device_id)
1013                        errno = -EINVAL;
1014                else if (test_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state) ||
1015                         test_bit(__I40E_RESET_INTR_RECEIVED, &pf->state))
1016                        errno = -EBUSY;
1017                else
1018                        ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno);
1019
1020                if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM))
1021                        dev_info(&pf->pdev->dev,
1022                                 "NVMUpdate read failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n",
1023                                 ret_val, hw->aq.asq_last_status, errno,
1024                                 (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK),
1025                                 cmd->offset, cmd->data_size);
1026
1027                return errno;
1028        }
1029
1030        /* normal ethtool get_eeprom support */
1031        eeprom->magic = hw->vendor_id | (hw->device_id << 16);
1032
1033        eeprom_buff = kzalloc(eeprom->len, GFP_KERNEL);
1034        if (!eeprom_buff)
1035                return -ENOMEM;
1036
1037        ret_val = i40e_acquire_nvm(hw, I40E_RESOURCE_READ);
1038        if (ret_val) {
1039                dev_info(&pf->pdev->dev,
1040                         "Failed Acquiring NVM resource for read err=%d status=0x%x\n",
1041                         ret_val, hw->aq.asq_last_status);
1042                goto free_buff;
1043        }
1044
1045        sectors = eeprom->len / I40E_NVM_SECTOR_SIZE;
1046        sectors += (eeprom->len % I40E_NVM_SECTOR_SIZE) ? 1 : 0;
1047        len = I40E_NVM_SECTOR_SIZE;
1048        last = false;
1049        for (i = 0; i < sectors; i++) {
1050                if (i == (sectors - 1)) {
1051                        len = eeprom->len - (I40E_NVM_SECTOR_SIZE * i);
1052                        last = true;
1053                }
1054                offset = eeprom->offset + (I40E_NVM_SECTOR_SIZE * i),
1055                ret_val = i40e_aq_read_nvm(hw, 0x0, offset, len,
1056                                (u8 *)eeprom_buff + (I40E_NVM_SECTOR_SIZE * i),
1057                                last, NULL);
1058                if (ret_val && hw->aq.asq_last_status == I40E_AQ_RC_EPERM) {
1059                        dev_info(&pf->pdev->dev,
1060                                 "read NVM failed, invalid offset 0x%x\n",
1061                                 offset);
1062                        break;
1063                } else if (ret_val &&
1064                           hw->aq.asq_last_status == I40E_AQ_RC_EACCES) {
1065                        dev_info(&pf->pdev->dev,
1066                                 "read NVM failed, access, offset 0x%x\n",
1067                                 offset);
1068                        break;
1069                } else if (ret_val) {
1070                        dev_info(&pf->pdev->dev,
1071                                 "read NVM failed offset %d err=%d status=0x%x\n",
1072                                 offset, ret_val, hw->aq.asq_last_status);
1073                        break;
1074                }
1075        }
1076
1077        i40e_release_nvm(hw);
1078        memcpy(bytes, (u8 *)eeprom_buff, eeprom->len);
1079free_buff:
1080        kfree(eeprom_buff);
1081        return ret_val;
1082}
1083
1084static int i40e_get_eeprom_len(struct net_device *netdev)
1085{
1086        struct i40e_netdev_priv *np = netdev_priv(netdev);
1087        struct i40e_hw *hw = &np->vsi->back->hw;
1088        u32 val;
1089
1090        val = (rd32(hw, I40E_GLPCI_LBARCTRL)
1091                & I40E_GLPCI_LBARCTRL_FL_SIZE_MASK)
1092                >> I40E_GLPCI_LBARCTRL_FL_SIZE_SHIFT;
1093        /* register returns value in power of 2, 64Kbyte chunks. */
1094        val = (64 * 1024) * BIT(val);
1095        return val;
1096}
1097
1098static int i40e_set_eeprom(struct net_device *netdev,
1099                           struct ethtool_eeprom *eeprom, u8 *bytes)
1100{
1101        struct i40e_netdev_priv *np = netdev_priv(netdev);
1102        struct i40e_hw *hw = &np->vsi->back->hw;
1103        struct i40e_pf *pf = np->vsi->back;
1104        struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom;
1105        int ret_val = 0;
1106        int errno = 0;
1107        u32 magic;
1108
1109        /* normal ethtool set_eeprom is not supported */
1110        magic = hw->vendor_id | (hw->device_id << 16);
1111        if (eeprom->magic == magic)
1112                errno = -EOPNOTSUPP;
1113        /* check for NVMUpdate access method */
1114        else if (!eeprom->magic || (eeprom->magic >> 16) != hw->device_id)
1115                errno = -EINVAL;
1116        else if (test_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state) ||
1117                 test_bit(__I40E_RESET_INTR_RECEIVED, &pf->state))
1118                errno = -EBUSY;
1119        else
1120                ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno);
1121
1122        if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM))
1123                dev_info(&pf->pdev->dev,
1124                         "NVMUpdate write failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n",
1125                         ret_val, hw->aq.asq_last_status, errno,
1126                         (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK),
1127                         cmd->offset, cmd->data_size);
1128
1129        return errno;
1130}
1131
1132static void i40e_get_drvinfo(struct net_device *netdev,
1133                             struct ethtool_drvinfo *drvinfo)
1134{
1135        struct i40e_netdev_priv *np = netdev_priv(netdev);
1136        struct i40e_vsi *vsi = np->vsi;
1137        struct i40e_pf *pf = vsi->back;
1138
1139        strlcpy(drvinfo->driver, i40e_driver_name, sizeof(drvinfo->driver));
1140        strlcpy(drvinfo->version, i40e_driver_version_str,
1141                sizeof(drvinfo->version));
1142        strlcpy(drvinfo->fw_version, i40e_nvm_version_str(&pf->hw),
1143                sizeof(drvinfo->fw_version));
1144        strlcpy(drvinfo->bus_info, pci_name(pf->pdev),
1145                sizeof(drvinfo->bus_info));
1146}
1147
1148static void i40e_get_ringparam(struct net_device *netdev,
1149                               struct ethtool_ringparam *ring)
1150{
1151        struct i40e_netdev_priv *np = netdev_priv(netdev);
1152        struct i40e_pf *pf = np->vsi->back;
1153        struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi];
1154
1155        ring->rx_max_pending = I40E_MAX_NUM_DESCRIPTORS;
1156        ring->tx_max_pending = I40E_MAX_NUM_DESCRIPTORS;
1157        ring->rx_mini_max_pending = 0;
1158        ring->rx_jumbo_max_pending = 0;
1159        ring->rx_pending = vsi->rx_rings[0]->count;
1160        ring->tx_pending = vsi->tx_rings[0]->count;
1161        ring->rx_mini_pending = 0;
1162        ring->rx_jumbo_pending = 0;
1163}
1164
1165static int i40e_set_ringparam(struct net_device *netdev,
1166                              struct ethtool_ringparam *ring)
1167{
1168        struct i40e_ring *tx_rings = NULL, *rx_rings = NULL;
1169        struct i40e_netdev_priv *np = netdev_priv(netdev);
1170        struct i40e_vsi *vsi = np->vsi;
1171        struct i40e_pf *pf = vsi->back;
1172        u32 new_rx_count, new_tx_count;
1173        int i, err = 0;
1174
1175        if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
1176                return -EINVAL;
1177
1178        if (ring->tx_pending > I40E_MAX_NUM_DESCRIPTORS ||
1179            ring->tx_pending < I40E_MIN_NUM_DESCRIPTORS ||
1180            ring->rx_pending > I40E_MAX_NUM_DESCRIPTORS ||
1181            ring->rx_pending < I40E_MIN_NUM_DESCRIPTORS) {
1182                netdev_info(netdev,
1183                            "Descriptors requested (Tx: %d / Rx: %d) out of range [%d-%d]\n",
1184                            ring->tx_pending, ring->rx_pending,
1185                            I40E_MIN_NUM_DESCRIPTORS, I40E_MAX_NUM_DESCRIPTORS);
1186                return -EINVAL;
1187        }
1188
1189        new_tx_count = ALIGN(ring->tx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE);
1190        new_rx_count = ALIGN(ring->rx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE);
1191
1192        /* if nothing to do return success */
1193        if ((new_tx_count == vsi->tx_rings[0]->count) &&
1194            (new_rx_count == vsi->rx_rings[0]->count))
1195                return 0;
1196
1197        while (test_and_set_bit(__I40E_CONFIG_BUSY, &pf->state))
1198                usleep_range(1000, 2000);
1199
1200        if (!netif_running(vsi->netdev)) {
1201                /* simple case - set for the next time the netdev is started */
1202                for (i = 0; i < vsi->num_queue_pairs; i++) {
1203                        vsi->tx_rings[i]->count = new_tx_count;
1204                        vsi->rx_rings[i]->count = new_rx_count;
1205                }
1206                goto done;
1207        }
1208
1209        /* We can't just free everything and then setup again,
1210         * because the ISRs in MSI-X mode get passed pointers
1211         * to the Tx and Rx ring structs.
1212         */
1213
1214        /* alloc updated Tx resources */
1215        if (new_tx_count != vsi->tx_rings[0]->count) {
1216                netdev_info(netdev,
1217                            "Changing Tx descriptor count from %d to %d.\n",
1218                            vsi->tx_rings[0]->count, new_tx_count);
1219                tx_rings = kcalloc(vsi->alloc_queue_pairs,
1220                                   sizeof(struct i40e_ring), GFP_KERNEL);
1221                if (!tx_rings) {
1222                        err = -ENOMEM;
1223                        goto done;
1224                }
1225
1226                for (i = 0; i < vsi->num_queue_pairs; i++) {
1227                        /* clone ring and setup updated count */
1228                        tx_rings[i] = *vsi->tx_rings[i];
1229                        tx_rings[i].count = new_tx_count;
1230                        /* the desc and bi pointers will be reallocated in the
1231                         * setup call
1232                         */
1233                        tx_rings[i].desc = NULL;
1234                        tx_rings[i].rx_bi = NULL;
1235                        err = i40e_setup_tx_descriptors(&tx_rings[i]);
1236                        if (err) {
1237                                while (i) {
1238                                        i--;
1239                                        i40e_free_tx_resources(&tx_rings[i]);
1240                                }
1241                                kfree(tx_rings);
1242                                tx_rings = NULL;
1243
1244                                goto done;
1245                        }
1246                }
1247        }
1248
1249        /* alloc updated Rx resources */
1250        if (new_rx_count != vsi->rx_rings[0]->count) {
1251                netdev_info(netdev,
1252                            "Changing Rx descriptor count from %d to %d\n",
1253                            vsi->rx_rings[0]->count, new_rx_count);
1254                rx_rings = kcalloc(vsi->alloc_queue_pairs,
1255                                   sizeof(struct i40e_ring), GFP_KERNEL);
1256                if (!rx_rings) {
1257                        err = -ENOMEM;
1258                        goto free_tx;
1259                }
1260
1261                for (i = 0; i < vsi->num_queue_pairs; i++) {
1262                        /* clone ring and setup updated count */
1263                        rx_rings[i] = *vsi->rx_rings[i];
1264                        rx_rings[i].count = new_rx_count;
1265                        /* the desc and bi pointers will be reallocated in the
1266                         * setup call
1267                         */
1268                        rx_rings[i].desc = NULL;
1269                        rx_rings[i].rx_bi = NULL;
1270                        err = i40e_setup_rx_descriptors(&rx_rings[i]);
1271                        if (err) {
1272                                while (i) {
1273                                        i--;
1274                                        i40e_free_rx_resources(&rx_rings[i]);
1275                                }
1276                                kfree(rx_rings);
1277                                rx_rings = NULL;
1278
1279                                goto free_tx;
1280                        }
1281                }
1282        }
1283
1284        /* Bring interface down, copy in the new ring info,
1285         * then restore the interface
1286         */
1287        i40e_down(vsi);
1288
1289        if (tx_rings) {
1290                for (i = 0; i < vsi->num_queue_pairs; i++) {
1291                        i40e_free_tx_resources(vsi->tx_rings[i]);
1292                        *vsi->tx_rings[i] = tx_rings[i];
1293                }
1294                kfree(tx_rings);
1295                tx_rings = NULL;
1296        }
1297
1298        if (rx_rings) {
1299                for (i = 0; i < vsi->num_queue_pairs; i++) {
1300                        i40e_free_rx_resources(vsi->rx_rings[i]);
1301                        *vsi->rx_rings[i] = rx_rings[i];
1302                }
1303                kfree(rx_rings);
1304                rx_rings = NULL;
1305        }
1306
1307        i40e_up(vsi);
1308
1309free_tx:
1310        /* error cleanup if the Rx allocations failed after getting Tx */
1311        if (tx_rings) {
1312                for (i = 0; i < vsi->num_queue_pairs; i++)
1313                        i40e_free_tx_resources(&tx_rings[i]);
1314                kfree(tx_rings);
1315                tx_rings = NULL;
1316        }
1317
1318done:
1319        clear_bit(__I40E_CONFIG_BUSY, &pf->state);
1320
1321        return err;
1322}
1323
1324static int i40e_get_sset_count(struct net_device *netdev, int sset)
1325{
1326        struct i40e_netdev_priv *np = netdev_priv(netdev);
1327        struct i40e_vsi *vsi = np->vsi;
1328        struct i40e_pf *pf = vsi->back;
1329
1330        switch (sset) {
1331        case ETH_SS_TEST:
1332                return I40E_TEST_LEN;
1333        case ETH_SS_STATS:
1334                if (vsi == pf->vsi[pf->lan_vsi] && pf->hw.partition_id == 1) {
1335                        int len = I40E_PF_STATS_LEN(netdev);
1336
1337                        if ((pf->lan_veb != I40E_NO_VEB) &&
1338                            (pf->flags & I40E_FLAG_VEB_STATS_ENABLED))
1339                                len += I40E_VEB_STATS_TOTAL;
1340                        return len;
1341                } else {
1342                        return I40E_VSI_STATS_LEN(netdev);
1343                }
1344        case ETH_SS_PRIV_FLAGS:
1345                return I40E_PRIV_FLAGS_STR_LEN;
1346        default:
1347                return -EOPNOTSUPP;
1348        }
1349}
1350
1351static void i40e_get_ethtool_stats(struct net_device *netdev,
1352                                   struct ethtool_stats *stats, u64 *data)
1353{
1354        struct i40e_netdev_priv *np = netdev_priv(netdev);
1355        struct i40e_ring *tx_ring, *rx_ring;
1356        struct i40e_vsi *vsi = np->vsi;
1357        struct i40e_pf *pf = vsi->back;
1358        int i = 0;
1359        char *p;
1360        int j;
1361        struct rtnl_link_stats64 *net_stats = i40e_get_vsi_stats_struct(vsi);
1362        unsigned int start;
1363
1364        i40e_update_stats(vsi);
1365
1366        for (j = 0; j < I40E_NETDEV_STATS_LEN; j++) {
1367                p = (char *)net_stats + i40e_gstrings_net_stats[j].stat_offset;
1368                data[i++] = (i40e_gstrings_net_stats[j].sizeof_stat ==
1369                        sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1370        }
1371        for (j = 0; j < I40E_MISC_STATS_LEN; j++) {
1372                p = (char *)vsi + i40e_gstrings_misc_stats[j].stat_offset;
1373                data[i++] = (i40e_gstrings_misc_stats[j].sizeof_stat ==
1374                            sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1375        }
1376#ifdef I40E_FCOE
1377        for (j = 0; j < I40E_FCOE_STATS_LEN; j++) {
1378                p = (char *)vsi + i40e_gstrings_fcoe_stats[j].stat_offset;
1379                data[i++] = (i40e_gstrings_fcoe_stats[j].sizeof_stat ==
1380                        sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1381        }
1382#endif
1383        rcu_read_lock();
1384        for (j = 0; j < vsi->num_queue_pairs; j++) {
1385                tx_ring = ACCESS_ONCE(vsi->tx_rings[j]);
1386
1387                if (!tx_ring)
1388                        continue;
1389
1390                /* process Tx ring statistics */
1391                do {
1392                        start = u64_stats_fetch_begin_irq(&tx_ring->syncp);
1393                        data[i] = tx_ring->stats.packets;
1394                        data[i + 1] = tx_ring->stats.bytes;
1395                } while (u64_stats_fetch_retry_irq(&tx_ring->syncp, start));
1396                i += 2;
1397
1398                /* Rx ring is the 2nd half of the queue pair */
1399                rx_ring = &tx_ring[1];
1400                do {
1401                        start = u64_stats_fetch_begin_irq(&rx_ring->syncp);
1402                        data[i] = rx_ring->stats.packets;
1403                        data[i + 1] = rx_ring->stats.bytes;
1404                } while (u64_stats_fetch_retry_irq(&rx_ring->syncp, start));
1405                i += 2;
1406        }
1407        rcu_read_unlock();
1408        if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1)
1409                return;
1410
1411        if ((pf->lan_veb != I40E_NO_VEB) &&
1412            (pf->flags & I40E_FLAG_VEB_STATS_ENABLED)) {
1413                struct i40e_veb *veb = pf->veb[pf->lan_veb];
1414
1415                for (j = 0; j < I40E_VEB_STATS_LEN; j++) {
1416                        p = (char *)veb;
1417                        p += i40e_gstrings_veb_stats[j].stat_offset;
1418                        data[i++] = (i40e_gstrings_veb_stats[j].sizeof_stat ==
1419                                     sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1420                }
1421                for (j = 0; j < I40E_MAX_TRAFFIC_CLASS; j++) {
1422                        data[i++] = veb->tc_stats.tc_tx_packets[j];
1423                        data[i++] = veb->tc_stats.tc_tx_bytes[j];
1424                        data[i++] = veb->tc_stats.tc_rx_packets[j];
1425                        data[i++] = veb->tc_stats.tc_rx_bytes[j];
1426                }
1427        }
1428        for (j = 0; j < I40E_GLOBAL_STATS_LEN; j++) {
1429                p = (char *)pf + i40e_gstrings_stats[j].stat_offset;
1430                data[i++] = (i40e_gstrings_stats[j].sizeof_stat ==
1431                             sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1432        }
1433        for (j = 0; j < I40E_MAX_USER_PRIORITY; j++) {
1434                data[i++] = pf->stats.priority_xon_tx[j];
1435                data[i++] = pf->stats.priority_xoff_tx[j];
1436        }
1437        for (j = 0; j < I40E_MAX_USER_PRIORITY; j++) {
1438                data[i++] = pf->stats.priority_xon_rx[j];
1439                data[i++] = pf->stats.priority_xoff_rx[j];
1440        }
1441        for (j = 0; j < I40E_MAX_USER_PRIORITY; j++)
1442                data[i++] = pf->stats.priority_xon_2_xoff[j];
1443}
1444
1445static void i40e_get_strings(struct net_device *netdev, u32 stringset,
1446                             u8 *data)
1447{
1448        struct i40e_netdev_priv *np = netdev_priv(netdev);
1449        struct i40e_vsi *vsi = np->vsi;
1450        struct i40e_pf *pf = vsi->back;
1451        char *p = (char *)data;
1452        int i;
1453
1454        switch (stringset) {
1455        case ETH_SS_TEST:
1456                for (i = 0; i < I40E_TEST_LEN; i++) {
1457                        memcpy(data, i40e_gstrings_test[i], ETH_GSTRING_LEN);
1458                        data += ETH_GSTRING_LEN;
1459                }
1460                break;
1461        case ETH_SS_STATS:
1462                for (i = 0; i < I40E_NETDEV_STATS_LEN; i++) {
1463                        snprintf(p, ETH_GSTRING_LEN, "%s",
1464                                 i40e_gstrings_net_stats[i].stat_string);
1465                        p += ETH_GSTRING_LEN;
1466                }
1467                for (i = 0; i < I40E_MISC_STATS_LEN; i++) {
1468                        snprintf(p, ETH_GSTRING_LEN, "%s",
1469                                 i40e_gstrings_misc_stats[i].stat_string);
1470                        p += ETH_GSTRING_LEN;
1471                }
1472#ifdef I40E_FCOE
1473                for (i = 0; i < I40E_FCOE_STATS_LEN; i++) {
1474                        snprintf(p, ETH_GSTRING_LEN, "%s",
1475                                 i40e_gstrings_fcoe_stats[i].stat_string);
1476                        p += ETH_GSTRING_LEN;
1477                }
1478#endif
1479                for (i = 0; i < vsi->num_queue_pairs; i++) {
1480                        snprintf(p, ETH_GSTRING_LEN, "tx-%u.tx_packets", i);
1481                        p += ETH_GSTRING_LEN;
1482                        snprintf(p, ETH_GSTRING_LEN, "tx-%u.tx_bytes", i);
1483                        p += ETH_GSTRING_LEN;
1484                        snprintf(p, ETH_GSTRING_LEN, "rx-%u.rx_packets", i);
1485                        p += ETH_GSTRING_LEN;
1486                        snprintf(p, ETH_GSTRING_LEN, "rx-%u.rx_bytes", i);
1487                        p += ETH_GSTRING_LEN;
1488                }
1489                if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1)
1490                        return;
1491
1492                if ((pf->lan_veb != I40E_NO_VEB) &&
1493                    (pf->flags & I40E_FLAG_VEB_STATS_ENABLED)) {
1494                        for (i = 0; i < I40E_VEB_STATS_LEN; i++) {
1495                                snprintf(p, ETH_GSTRING_LEN, "veb.%s",
1496                                        i40e_gstrings_veb_stats[i].stat_string);
1497                                p += ETH_GSTRING_LEN;
1498                        }
1499                        for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1500                                snprintf(p, ETH_GSTRING_LEN,
1501                                         "veb.tc_%u_tx_packets", i);
1502                                p += ETH_GSTRING_LEN;
1503                                snprintf(p, ETH_GSTRING_LEN,
1504                                         "veb.tc_%u_tx_bytes", i);
1505                                p += ETH_GSTRING_LEN;
1506                                snprintf(p, ETH_GSTRING_LEN,
1507                                         "veb.tc_%u_rx_packets", i);
1508                                p += ETH_GSTRING_LEN;
1509                                snprintf(p, ETH_GSTRING_LEN,
1510                                         "veb.tc_%u_rx_bytes", i);
1511                                p += ETH_GSTRING_LEN;
1512                        }
1513                }
1514                for (i = 0; i < I40E_GLOBAL_STATS_LEN; i++) {
1515                        snprintf(p, ETH_GSTRING_LEN, "port.%s",
1516                                 i40e_gstrings_stats[i].stat_string);
1517                        p += ETH_GSTRING_LEN;
1518                }
1519                for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) {
1520                        snprintf(p, ETH_GSTRING_LEN,
1521                                 "port.tx_priority_%u_xon", i);
1522                        p += ETH_GSTRING_LEN;
1523                        snprintf(p, ETH_GSTRING_LEN,
1524                                 "port.tx_priority_%u_xoff", i);
1525                        p += ETH_GSTRING_LEN;
1526                }
1527                for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) {
1528                        snprintf(p, ETH_GSTRING_LEN,
1529                                 "port.rx_priority_%u_xon", i);
1530                        p += ETH_GSTRING_LEN;
1531                        snprintf(p, ETH_GSTRING_LEN,
1532                                 "port.rx_priority_%u_xoff", i);
1533                        p += ETH_GSTRING_LEN;
1534                }
1535                for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) {
1536                        snprintf(p, ETH_GSTRING_LEN,
1537                                 "port.rx_priority_%u_xon_2_xoff", i);
1538                        p += ETH_GSTRING_LEN;
1539                }
1540                /* BUG_ON(p - data != I40E_STATS_LEN * ETH_GSTRING_LEN); */
1541                break;
1542        case ETH_SS_PRIV_FLAGS:
1543                for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) {
1544                        memcpy(data, i40e_priv_flags_strings[i],
1545                               ETH_GSTRING_LEN);
1546                        data += ETH_GSTRING_LEN;
1547                }
1548                break;
1549        default:
1550                break;
1551        }
1552}
1553
1554static int i40e_get_ts_info(struct net_device *dev,
1555                            struct ethtool_ts_info *info)
1556{
1557        struct i40e_pf *pf = i40e_netdev_to_pf(dev);
1558
1559        /* only report HW timestamping if PTP is enabled */
1560        if (!(pf->flags & I40E_FLAG_PTP))
1561                return ethtool_op_get_ts_info(dev, info);
1562
1563        info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE |
1564                                SOF_TIMESTAMPING_RX_SOFTWARE |
1565                                SOF_TIMESTAMPING_SOFTWARE |
1566                                SOF_TIMESTAMPING_TX_HARDWARE |
1567                                SOF_TIMESTAMPING_RX_HARDWARE |
1568                                SOF_TIMESTAMPING_RAW_HARDWARE;
1569
1570        if (pf->ptp_clock)
1571                info->phc_index = ptp_clock_index(pf->ptp_clock);
1572        else
1573                info->phc_index = -1;
1574
1575        info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON);
1576
1577        info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) |
1578                           BIT(HWTSTAMP_FILTER_PTP_V1_L4_EVENT) |
1579                           BIT(HWTSTAMP_FILTER_PTP_V2_EVENT);
1580
1581        return 0;
1582}
1583
1584static int i40e_link_test(struct net_device *netdev, u64 *data)
1585{
1586        struct i40e_netdev_priv *np = netdev_priv(netdev);
1587        struct i40e_pf *pf = np->vsi->back;
1588        i40e_status status;
1589        bool link_up = false;
1590
1591        netif_info(pf, hw, netdev, "link test\n");
1592        status = i40e_get_link_status(&pf->hw, &link_up);
1593        if (status) {
1594                netif_err(pf, drv, netdev, "link query timed out, please retry test\n");
1595                *data = 1;
1596                return *data;
1597        }
1598
1599        if (link_up)
1600                *data = 0;
1601        else
1602                *data = 1;
1603
1604        return *data;
1605}
1606
1607static int i40e_reg_test(struct net_device *netdev, u64 *data)
1608{
1609        struct i40e_netdev_priv *np = netdev_priv(netdev);
1610        struct i40e_pf *pf = np->vsi->back;
1611
1612        netif_info(pf, hw, netdev, "register test\n");
1613        *data = i40e_diag_reg_test(&pf->hw);
1614
1615        return *data;
1616}
1617
1618static int i40e_eeprom_test(struct net_device *netdev, u64 *data)
1619{
1620        struct i40e_netdev_priv *np = netdev_priv(netdev);
1621        struct i40e_pf *pf = np->vsi->back;
1622
1623        netif_info(pf, hw, netdev, "eeprom test\n");
1624        *data = i40e_diag_eeprom_test(&pf->hw);
1625
1626        /* forcebly clear the NVM Update state machine */
1627        pf->hw.nvmupd_state = I40E_NVMUPD_STATE_INIT;
1628
1629        return *data;
1630}
1631
1632static int i40e_intr_test(struct net_device *netdev, u64 *data)
1633{
1634        struct i40e_netdev_priv *np = netdev_priv(netdev);
1635        struct i40e_pf *pf = np->vsi->back;
1636        u16 swc_old = pf->sw_int_count;
1637
1638        netif_info(pf, hw, netdev, "interrupt test\n");
1639        wr32(&pf->hw, I40E_PFINT_DYN_CTL0,
1640             (I40E_PFINT_DYN_CTL0_INTENA_MASK |
1641              I40E_PFINT_DYN_CTL0_SWINT_TRIG_MASK |
1642              I40E_PFINT_DYN_CTL0_ITR_INDX_MASK |
1643              I40E_PFINT_DYN_CTL0_SW_ITR_INDX_ENA_MASK |
1644              I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK));
1645        usleep_range(1000, 2000);
1646        *data = (swc_old == pf->sw_int_count);
1647
1648        return *data;
1649}
1650
1651static int i40e_loopback_test(struct net_device *netdev, u64 *data)
1652{
1653        struct i40e_netdev_priv *np = netdev_priv(netdev);
1654        struct i40e_pf *pf = np->vsi->back;
1655
1656        netif_info(pf, hw, netdev, "loopback test not implemented\n");
1657        *data = 0;
1658
1659        return *data;
1660}
1661
1662static inline bool i40e_active_vfs(struct i40e_pf *pf)
1663{
1664        struct i40e_vf *vfs = pf->vf;
1665        int i;
1666
1667        for (i = 0; i < pf->num_alloc_vfs; i++)
1668                if (test_bit(I40E_VF_STAT_ACTIVE, &vfs[i].vf_states))
1669                        return true;
1670        return false;
1671}
1672
1673static inline bool i40e_active_vmdqs(struct i40e_pf *pf)
1674{
1675        struct i40e_vsi **vsi = pf->vsi;
1676        int i;
1677
1678        for (i = 0; i < pf->num_alloc_vsi; i++) {
1679                if (!vsi[i])
1680                        continue;
1681                if (vsi[i]->type == I40E_VSI_VMDQ2)
1682                        return true;
1683        }
1684
1685        return false;
1686}
1687
1688static void i40e_diag_test(struct net_device *netdev,
1689                           struct ethtool_test *eth_test, u64 *data)
1690{
1691        struct i40e_netdev_priv *np = netdev_priv(netdev);
1692        bool if_running = netif_running(netdev);
1693        struct i40e_pf *pf = np->vsi->back;
1694
1695        if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
1696                /* Offline tests */
1697                netif_info(pf, drv, netdev, "offline testing starting\n");
1698
1699                set_bit(__I40E_TESTING, &pf->state);
1700
1701                if (i40e_active_vfs(pf) || i40e_active_vmdqs(pf)) {
1702                        dev_warn(&pf->pdev->dev,
1703                                 "Please take active VFs and Netqueues offline and restart the adapter before running NIC diagnostics\n");
1704                        data[I40E_ETH_TEST_REG]         = 1;
1705                        data[I40E_ETH_TEST_EEPROM]      = 1;
1706                        data[I40E_ETH_TEST_INTR]        = 1;
1707                        data[I40E_ETH_TEST_LOOPBACK]    = 1;
1708                        data[I40E_ETH_TEST_LINK]        = 1;
1709                        eth_test->flags |= ETH_TEST_FL_FAILED;
1710                        clear_bit(__I40E_TESTING, &pf->state);
1711                        goto skip_ol_tests;
1712                }
1713
1714                /* If the device is online then take it offline */
1715                if (if_running)
1716                        /* indicate we're in test mode */
1717                        dev_close(netdev);
1718                else
1719                        /* This reset does not affect link - if it is
1720                         * changed to a type of reset that does affect
1721                         * link then the following link test would have
1722                         * to be moved to before the reset
1723                         */
1724                        i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED));
1725
1726                if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK]))
1727                        eth_test->flags |= ETH_TEST_FL_FAILED;
1728
1729                if (i40e_eeprom_test(netdev, &data[I40E_ETH_TEST_EEPROM]))
1730                        eth_test->flags |= ETH_TEST_FL_FAILED;
1731
1732                if (i40e_intr_test(netdev, &data[I40E_ETH_TEST_INTR]))
1733                        eth_test->flags |= ETH_TEST_FL_FAILED;
1734
1735                if (i40e_loopback_test(netdev, &data[I40E_ETH_TEST_LOOPBACK]))
1736                        eth_test->flags |= ETH_TEST_FL_FAILED;
1737
1738                /* run reg test last, a reset is required after it */
1739                if (i40e_reg_test(netdev, &data[I40E_ETH_TEST_REG]))
1740                        eth_test->flags |= ETH_TEST_FL_FAILED;
1741
1742                clear_bit(__I40E_TESTING, &pf->state);
1743                i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED));
1744
1745                if (if_running)
1746                        dev_open(netdev);
1747        } else {
1748                /* Online tests */
1749                netif_info(pf, drv, netdev, "online testing starting\n");
1750
1751                if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK]))
1752                        eth_test->flags |= ETH_TEST_FL_FAILED;
1753
1754                /* Offline only tests, not run in online; pass by default */
1755                data[I40E_ETH_TEST_REG] = 0;
1756                data[I40E_ETH_TEST_EEPROM] = 0;
1757                data[I40E_ETH_TEST_INTR] = 0;
1758                data[I40E_ETH_TEST_LOOPBACK] = 0;
1759        }
1760
1761skip_ol_tests:
1762
1763        netif_info(pf, drv, netdev, "testing finished\n");
1764}
1765
1766static void i40e_get_wol(struct net_device *netdev,
1767                         struct ethtool_wolinfo *wol)
1768{
1769        struct i40e_netdev_priv *np = netdev_priv(netdev);
1770        struct i40e_pf *pf = np->vsi->back;
1771        struct i40e_hw *hw = &pf->hw;
1772        u16 wol_nvm_bits;
1773
1774        /* NVM bit on means WoL disabled for the port */
1775        i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits);
1776        if ((BIT(hw->port) & wol_nvm_bits) || (hw->partition_id != 1)) {
1777                wol->supported = 0;
1778                wol->wolopts = 0;
1779        } else {
1780                wol->supported = WAKE_MAGIC;
1781                wol->wolopts = (pf->wol_en ? WAKE_MAGIC : 0);
1782        }
1783}
1784
1785/**
1786 * i40e_set_wol - set the WakeOnLAN configuration
1787 * @netdev: the netdev in question
1788 * @wol: the ethtool WoL setting data
1789 **/
1790static int i40e_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
1791{
1792        struct i40e_netdev_priv *np = netdev_priv(netdev);
1793        struct i40e_pf *pf = np->vsi->back;
1794        struct i40e_vsi *vsi = np->vsi;
1795        struct i40e_hw *hw = &pf->hw;
1796        u16 wol_nvm_bits;
1797
1798        /* WoL not supported if this isn't the controlling PF on the port */
1799        if (hw->partition_id != 1) {
1800                i40e_partition_setting_complaint(pf);
1801                return -EOPNOTSUPP;
1802        }
1803
1804        if (vsi != pf->vsi[pf->lan_vsi])
1805                return -EOPNOTSUPP;
1806
1807        /* NVM bit on means WoL disabled for the port */
1808        i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits);
1809        if (BIT(hw->port) & wol_nvm_bits)
1810                return -EOPNOTSUPP;
1811
1812        /* only magic packet is supported */
1813        if (wol->wolopts && (wol->wolopts != WAKE_MAGIC))
1814                return -EOPNOTSUPP;
1815
1816        /* is this a new value? */
1817        if (pf->wol_en != !!wol->wolopts) {
1818                pf->wol_en = !!wol->wolopts;
1819                device_set_wakeup_enable(&pf->pdev->dev, pf->wol_en);
1820        }
1821
1822        return 0;
1823}
1824
1825static int i40e_set_phys_id(struct net_device *netdev,
1826                            enum ethtool_phys_id_state state)
1827{
1828        struct i40e_netdev_priv *np = netdev_priv(netdev);
1829        i40e_status ret = 0;
1830        struct i40e_pf *pf = np->vsi->back;
1831        struct i40e_hw *hw = &pf->hw;
1832        int blink_freq = 2;
1833        u16 temp_status;
1834
1835        switch (state) {
1836        case ETHTOOL_ID_ACTIVE:
1837                if (!(pf->flags & I40E_FLAG_HAVE_10GBASET_PHY)) {
1838                        pf->led_status = i40e_led_get(hw);
1839                } else {
1840                        i40e_aq_set_phy_debug(hw, I40E_PHY_DEBUG_PORT, NULL);
1841                        ret = i40e_led_get_phy(hw, &temp_status,
1842                                               &pf->phy_led_val);
1843                        pf->led_status = temp_status;
1844                }
1845                return blink_freq;
1846        case ETHTOOL_ID_ON:
1847                if (!(pf->flags & I40E_FLAG_HAVE_10GBASET_PHY))
1848                        i40e_led_set(hw, 0xf, false);
1849                else
1850                        ret = i40e_led_set_phy(hw, true, pf->led_status, 0);
1851                break;
1852        case ETHTOOL_ID_OFF:
1853                if (!(pf->flags & I40E_FLAG_HAVE_10GBASET_PHY))
1854                        i40e_led_set(hw, 0x0, false);
1855                else
1856                        ret = i40e_led_set_phy(hw, false, pf->led_status, 0);
1857                break;
1858        case ETHTOOL_ID_INACTIVE:
1859                if (!(pf->flags & I40E_FLAG_HAVE_10GBASET_PHY)) {
1860                        i40e_led_set(hw, false, pf->led_status);
1861                } else {
1862                        ret = i40e_led_set_phy(hw, false, pf->led_status,
1863                                               (pf->phy_led_val |
1864                                               I40E_PHY_LED_MODE_ORIG));
1865                        i40e_aq_set_phy_debug(hw, 0, NULL);
1866                }
1867                break;
1868        default:
1869                break;
1870        }
1871                if (ret)
1872                        return -ENOENT;
1873                else
1874                        return 0;
1875}
1876
1877/* NOTE: i40e hardware uses a conversion factor of 2 for Interrupt
1878 * Throttle Rate (ITR) ie. ITR(1) = 2us ITR(10) = 20 us, and also
1879 * 125us (8000 interrupts per second) == ITR(62)
1880 */
1881
1882static int __i40e_get_coalesce(struct net_device *netdev,
1883                               struct ethtool_coalesce *ec,
1884                               int queue)
1885{
1886        struct i40e_netdev_priv *np = netdev_priv(netdev);
1887        struct i40e_vsi *vsi = np->vsi;
1888
1889        ec->tx_max_coalesced_frames_irq = vsi->work_limit;
1890        ec->rx_max_coalesced_frames_irq = vsi->work_limit;
1891
1892        /* rx and tx usecs has per queue value. If user doesn't specify the queue,
1893         * return queue 0's value to represent.
1894         */
1895        if (queue < 0) {
1896                queue = 0;
1897        } else if (queue >= vsi->num_queue_pairs) {
1898                return -EINVAL;
1899        }
1900
1901        if (ITR_IS_DYNAMIC(vsi->rx_rings[queue]->rx_itr_setting))
1902                ec->use_adaptive_rx_coalesce = 1;
1903
1904        if (ITR_IS_DYNAMIC(vsi->tx_rings[queue]->tx_itr_setting))
1905                ec->use_adaptive_tx_coalesce = 1;
1906
1907        ec->rx_coalesce_usecs = vsi->rx_rings[queue]->rx_itr_setting & ~I40E_ITR_DYNAMIC;
1908        ec->tx_coalesce_usecs = vsi->tx_rings[queue]->tx_itr_setting & ~I40E_ITR_DYNAMIC;
1909
1910        /* we use the _usecs_high to store/set the interrupt rate limit
1911         * that the hardware supports, that almost but not quite
1912         * fits the original intent of the ethtool variable,
1913         * the rx_coalesce_usecs_high limits total interrupts
1914         * per second from both tx/rx sources.
1915         */
1916        ec->rx_coalesce_usecs_high = vsi->int_rate_limit;
1917        ec->tx_coalesce_usecs_high = vsi->int_rate_limit;
1918
1919        return 0;
1920}
1921
1922static int i40e_get_coalesce(struct net_device *netdev,
1923                             struct ethtool_coalesce *ec)
1924{
1925        return __i40e_get_coalesce(netdev, ec, -1);
1926}
1927
1928static int i40e_get_per_queue_coalesce(struct net_device *netdev, u32 queue,
1929                                       struct ethtool_coalesce *ec)
1930{
1931        return __i40e_get_coalesce(netdev, ec, queue);
1932}
1933
1934static void i40e_set_itr_per_queue(struct i40e_vsi *vsi,
1935                                   struct ethtool_coalesce *ec,
1936                                   int queue)
1937{
1938        struct i40e_pf *pf = vsi->back;
1939        struct i40e_hw *hw = &pf->hw;
1940        struct i40e_q_vector *q_vector;
1941        u16 vector, intrl;
1942
1943        intrl = INTRL_USEC_TO_REG(vsi->int_rate_limit);
1944
1945        vsi->rx_rings[queue]->rx_itr_setting = ec->rx_coalesce_usecs;
1946        vsi->tx_rings[queue]->tx_itr_setting = ec->tx_coalesce_usecs;
1947
1948        if (ec->use_adaptive_rx_coalesce)
1949                vsi->rx_rings[queue]->rx_itr_setting |= I40E_ITR_DYNAMIC;
1950        else
1951                vsi->rx_rings[queue]->rx_itr_setting &= ~I40E_ITR_DYNAMIC;
1952
1953        if (ec->use_adaptive_tx_coalesce)
1954                vsi->tx_rings[queue]->tx_itr_setting |= I40E_ITR_DYNAMIC;
1955        else
1956                vsi->tx_rings[queue]->tx_itr_setting &= ~I40E_ITR_DYNAMIC;
1957
1958        q_vector = vsi->rx_rings[queue]->q_vector;
1959        q_vector->rx.itr = ITR_TO_REG(vsi->rx_rings[queue]->rx_itr_setting);
1960        vector = vsi->base_vector + q_vector->v_idx;
1961        wr32(hw, I40E_PFINT_ITRN(I40E_RX_ITR, vector - 1), q_vector->rx.itr);
1962
1963        q_vector = vsi->tx_rings[queue]->q_vector;
1964        q_vector->tx.itr = ITR_TO_REG(vsi->tx_rings[queue]->tx_itr_setting);
1965        vector = vsi->base_vector + q_vector->v_idx;
1966        wr32(hw, I40E_PFINT_ITRN(I40E_TX_ITR, vector - 1), q_vector->tx.itr);
1967
1968        wr32(hw, I40E_PFINT_RATEN(vector - 1), intrl);
1969        i40e_flush(hw);
1970}
1971
1972static int __i40e_set_coalesce(struct net_device *netdev,
1973                               struct ethtool_coalesce *ec,
1974                               int queue)
1975{
1976        struct i40e_netdev_priv *np = netdev_priv(netdev);
1977        struct i40e_vsi *vsi = np->vsi;
1978        struct i40e_pf *pf = vsi->back;
1979        int i;
1980
1981        if (ec->tx_max_coalesced_frames_irq || ec->rx_max_coalesced_frames_irq)
1982                vsi->work_limit = ec->tx_max_coalesced_frames_irq;
1983
1984        /* tx_coalesce_usecs_high is ignored, use rx-usecs-high instead */
1985        if (ec->tx_coalesce_usecs_high != vsi->int_rate_limit) {
1986                netif_info(pf, drv, netdev, "tx-usecs-high is not used, please program rx-usecs-high\n");
1987                return -EINVAL;
1988        }
1989
1990        if (ec->rx_coalesce_usecs_high >= INTRL_REG_TO_USEC(I40E_MAX_INTRL)) {
1991                netif_info(pf, drv, netdev, "Invalid value, rx-usecs-high range is 0-235\n");
1992                return -EINVAL;
1993        }
1994
1995        if (ec->rx_coalesce_usecs == 0) {
1996                if (ec->use_adaptive_rx_coalesce)
1997                        netif_info(pf, drv, netdev, "rx-usecs=0, need to disable adaptive-rx for a complete disable\n");
1998        } else if ((ec->rx_coalesce_usecs < (I40E_MIN_ITR << 1)) ||
1999                   (ec->rx_coalesce_usecs > (I40E_MAX_ITR << 1))) {
2000                        netif_info(pf, drv, netdev, "Invalid value, rx-usecs range is 0-8160\n");
2001                        return -EINVAL;
2002        }
2003
2004        vsi->int_rate_limit = ec->rx_coalesce_usecs_high;
2005
2006        if (ec->tx_coalesce_usecs == 0) {
2007                if (ec->use_adaptive_tx_coalesce)
2008                        netif_info(pf, drv, netdev, "tx-usecs=0, need to disable adaptive-tx for a complete disable\n");
2009        } else if ((ec->tx_coalesce_usecs < (I40E_MIN_ITR << 1)) ||
2010                   (ec->tx_coalesce_usecs > (I40E_MAX_ITR << 1))) {
2011                        netif_info(pf, drv, netdev, "Invalid value, tx-usecs range is 0-8160\n");
2012                        return -EINVAL;
2013        }
2014
2015        /* rx and tx usecs has per queue value. If user doesn't specify the queue,
2016         * apply to all queues.
2017         */
2018        if (queue < 0) {
2019                for (i = 0; i < vsi->num_queue_pairs; i++)
2020                        i40e_set_itr_per_queue(vsi, ec, i);
2021        } else if (queue < vsi->num_queue_pairs) {
2022                i40e_set_itr_per_queue(vsi, ec, queue);
2023        } else {
2024                netif_info(pf, drv, netdev, "Invalid queue value, queue range is 0 - %d\n",
2025                           vsi->num_queue_pairs - 1);
2026                return -EINVAL;
2027        }
2028
2029        return 0;
2030}
2031
2032static int i40e_set_coalesce(struct net_device *netdev,
2033                             struct ethtool_coalesce *ec)
2034{
2035        return __i40e_set_coalesce(netdev, ec, -1);
2036}
2037
2038static int i40e_set_per_queue_coalesce(struct net_device *netdev, u32 queue,
2039                                       struct ethtool_coalesce *ec)
2040{
2041        return __i40e_set_coalesce(netdev, ec, queue);
2042}
2043
2044/**
2045 * i40e_get_rss_hash_opts - Get RSS hash Input Set for each flow type
2046 * @pf: pointer to the physical function struct
2047 * @cmd: ethtool rxnfc command
2048 *
2049 * Returns Success if the flow is supported, else Invalid Input.
2050 **/
2051static int i40e_get_rss_hash_opts(struct i40e_pf *pf, struct ethtool_rxnfc *cmd)
2052{
2053        cmd->data = 0;
2054
2055        if (pf->vsi[pf->lan_vsi]->rxnfc.data != 0) {
2056                cmd->data = pf->vsi[pf->lan_vsi]->rxnfc.data;
2057                cmd->flow_type = pf->vsi[pf->lan_vsi]->rxnfc.flow_type;
2058                return 0;
2059        }
2060        /* Report default options for RSS on i40e */
2061        switch (cmd->flow_type) {
2062        case TCP_V4_FLOW:
2063        case UDP_V4_FLOW:
2064                cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
2065        /* fall through to add IP fields */
2066        case SCTP_V4_FLOW:
2067        case AH_ESP_V4_FLOW:
2068        case AH_V4_FLOW:
2069        case ESP_V4_FLOW:
2070        case IPV4_FLOW:
2071                cmd->data |= RXH_IP_SRC | RXH_IP_DST;
2072                break;
2073        case TCP_V6_FLOW:
2074        case UDP_V6_FLOW:
2075                cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
2076        /* fall through to add IP fields */
2077        case SCTP_V6_FLOW:
2078        case AH_ESP_V6_FLOW:
2079        case AH_V6_FLOW:
2080        case ESP_V6_FLOW:
2081        case IPV6_FLOW:
2082                cmd->data |= RXH_IP_SRC | RXH_IP_DST;
2083                break;
2084        default:
2085                return -EINVAL;
2086        }
2087
2088        return 0;
2089}
2090
2091/**
2092 * i40e_get_ethtool_fdir_all - Populates the rule count of a command
2093 * @pf: Pointer to the physical function struct
2094 * @cmd: The command to get or set Rx flow classification rules
2095 * @rule_locs: Array of used rule locations
2096 *
2097 * This function populates both the total and actual rule count of
2098 * the ethtool flow classification command
2099 *
2100 * Returns 0 on success or -EMSGSIZE if entry not found
2101 **/
2102static int i40e_get_ethtool_fdir_all(struct i40e_pf *pf,
2103                                     struct ethtool_rxnfc *cmd,
2104                                     u32 *rule_locs)
2105{
2106        struct i40e_fdir_filter *rule;
2107        struct hlist_node *node2;
2108        int cnt = 0;
2109
2110        /* report total rule count */
2111        cmd->data = i40e_get_fd_cnt_all(pf);
2112
2113        hlist_for_each_entry_safe(rule, node2,
2114                                  &pf->fdir_filter_list, fdir_node) {
2115                if (cnt == cmd->rule_cnt)
2116                        return -EMSGSIZE;
2117
2118                rule_locs[cnt] = rule->fd_id;
2119                cnt++;
2120        }
2121
2122        cmd->rule_cnt = cnt;
2123
2124        return 0;
2125}
2126
2127/**
2128 * i40e_get_ethtool_fdir_entry - Look up a filter based on Rx flow
2129 * @pf: Pointer to the physical function struct
2130 * @cmd: The command to get or set Rx flow classification rules
2131 *
2132 * This function looks up a filter based on the Rx flow classification
2133 * command and fills the flow spec info for it if found
2134 *
2135 * Returns 0 on success or -EINVAL if filter not found
2136 **/
2137static int i40e_get_ethtool_fdir_entry(struct i40e_pf *pf,
2138                                       struct ethtool_rxnfc *cmd)
2139{
2140        struct ethtool_rx_flow_spec *fsp =
2141                        (struct ethtool_rx_flow_spec *)&cmd->fs;
2142        struct i40e_fdir_filter *rule = NULL;
2143        struct hlist_node *node2;
2144
2145        hlist_for_each_entry_safe(rule, node2,
2146                                  &pf->fdir_filter_list, fdir_node) {
2147                if (fsp->location <= rule->fd_id)
2148                        break;
2149        }
2150
2151        if (!rule || fsp->location != rule->fd_id)
2152                return -EINVAL;
2153
2154        fsp->flow_type = rule->flow_type;
2155        if (fsp->flow_type == IP_USER_FLOW) {
2156                fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4;
2157                fsp->h_u.usr_ip4_spec.proto = 0;
2158                fsp->m_u.usr_ip4_spec.proto = 0;
2159        }
2160
2161        /* Reverse the src and dest notion, since the HW views them from
2162         * Tx perspective where as the user expects it from Rx filter view.
2163         */
2164        fsp->h_u.tcp_ip4_spec.psrc = rule->dst_port;
2165        fsp->h_u.tcp_ip4_spec.pdst = rule->src_port;
2166        fsp->h_u.tcp_ip4_spec.ip4src = rule->dst_ip[0];
2167        fsp->h_u.tcp_ip4_spec.ip4dst = rule->src_ip[0];
2168
2169        if (rule->dest_ctl == I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET)
2170                fsp->ring_cookie = RX_CLS_FLOW_DISC;
2171        else
2172                fsp->ring_cookie = rule->q_index;
2173
2174        if (rule->dest_vsi != pf->vsi[pf->lan_vsi]->id) {
2175                struct i40e_vsi *vsi;
2176
2177                vsi = i40e_find_vsi_from_id(pf, rule->dest_vsi);
2178                if (vsi && vsi->type == I40E_VSI_SRIOV) {
2179                        fsp->h_ext.data[1] = htonl(vsi->vf_id);
2180                        fsp->m_ext.data[1] = htonl(0x1);
2181                }
2182        }
2183
2184        return 0;
2185}
2186
2187/**
2188 * i40e_get_rxnfc - command to get RX flow classification rules
2189 * @netdev: network interface device structure
2190 * @cmd: ethtool rxnfc command
2191 *
2192 * Returns Success if the command is supported.
2193 **/
2194static int i40e_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd,
2195                          u32 *rule_locs)
2196{
2197        struct i40e_netdev_priv *np = netdev_priv(netdev);
2198        struct i40e_vsi *vsi = np->vsi;
2199        struct i40e_pf *pf = vsi->back;
2200        int ret = -EOPNOTSUPP;
2201
2202        switch (cmd->cmd) {
2203        case ETHTOOL_GRXRINGS:
2204                cmd->data = vsi->num_queue_pairs;
2205                ret = 0;
2206                break;
2207        case ETHTOOL_GRXFH:
2208                ret = i40e_get_rss_hash_opts(pf, cmd);
2209                break;
2210        case ETHTOOL_GRXCLSRLCNT:
2211                cmd->rule_cnt = pf->fdir_pf_active_filters;
2212                /* report total rule count */
2213                cmd->data = i40e_get_fd_cnt_all(pf);
2214                ret = 0;
2215                break;
2216        case ETHTOOL_GRXCLSRULE:
2217                ret = i40e_get_ethtool_fdir_entry(pf, cmd);
2218                break;
2219        case ETHTOOL_GRXCLSRLALL:
2220                ret = i40e_get_ethtool_fdir_all(pf, cmd, rule_locs);
2221                break;
2222        default:
2223                break;
2224        }
2225
2226        return ret;
2227}
2228
2229/**
2230 * i40e_set_rss_hash_opt - Enable/Disable flow types for RSS hash
2231 * @pf: pointer to the physical function struct
2232 * @cmd: ethtool rxnfc command
2233 *
2234 * Returns Success if the flow input set is supported.
2235 **/
2236static int i40e_set_rss_hash_opt(struct i40e_pf *pf, struct ethtool_rxnfc *nfc)
2237{
2238        struct i40e_hw *hw = &pf->hw;
2239        u64 hena = (u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(0)) |
2240                   ((u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(1)) << 32);
2241
2242        /* RSS does not support anything other than hashing
2243         * to queues on src and dst IPs and ports
2244         */
2245        if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST |
2246                          RXH_L4_B_0_1 | RXH_L4_B_2_3))
2247                return -EINVAL;
2248
2249        /* We need at least the IP SRC and DEST fields for hashing */
2250        if (!(nfc->data & RXH_IP_SRC) ||
2251            !(nfc->data & RXH_IP_DST))
2252                return -EINVAL;
2253
2254        switch (nfc->flow_type) {
2255        case TCP_V4_FLOW:
2256                switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
2257                case 0:
2258                        return -EINVAL;
2259                case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
2260                        if (pf->flags & I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE)
2261                                hena |=
2262                           BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK);
2263
2264                        hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP);
2265                        break;
2266                default:
2267                        return -EINVAL;
2268                }
2269                break;
2270        case TCP_V6_FLOW:
2271                switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
2272                case 0:
2273                        return -EINVAL;
2274                case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
2275                        if (pf->flags & I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE)
2276                                hena |=
2277                           BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_TCP_SYN_NO_ACK);
2278
2279                        hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_TCP);
2280                        break;
2281                default:
2282                        return -EINVAL;
2283                }
2284                break;
2285        case UDP_V4_FLOW:
2286                switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
2287                case 0:
2288                        return -EINVAL;
2289                case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
2290                        if (pf->flags & I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE)
2291                                hena |=
2292                            BIT_ULL(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV4_UDP) |
2293                            BIT_ULL(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV4_UDP);
2294
2295                        hena |= (BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_UDP) |
2296                                 BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4));
2297                        break;
2298                default:
2299                        return -EINVAL;
2300                }
2301                break;
2302        case UDP_V6_FLOW:
2303                switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
2304                case 0:
2305                        return -EINVAL;
2306                case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
2307                        if (pf->flags & I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE)
2308                                hena |=
2309                            BIT_ULL(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV6_UDP) |
2310                            BIT_ULL(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV6_UDP);
2311
2312                        hena |= (BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_UDP) |
2313                                 BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6));
2314                        break;
2315                default:
2316                        return -EINVAL;
2317                }
2318                break;
2319        case AH_ESP_V4_FLOW:
2320        case AH_V4_FLOW:
2321        case ESP_V4_FLOW:
2322        case SCTP_V4_FLOW:
2323                if ((nfc->data & RXH_L4_B_0_1) ||
2324                    (nfc->data & RXH_L4_B_2_3))
2325                        return -EINVAL;
2326                hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER);
2327                break;
2328        case AH_ESP_V6_FLOW:
2329        case AH_V6_FLOW:
2330        case ESP_V6_FLOW:
2331        case SCTP_V6_FLOW:
2332                if ((nfc->data & RXH_L4_B_0_1) ||
2333                    (nfc->data & RXH_L4_B_2_3))
2334                        return -EINVAL;
2335                hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER);
2336                break;
2337        case IPV4_FLOW:
2338                hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER) |
2339                        BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4);
2340                break;
2341        case IPV6_FLOW:
2342                hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER) |
2343                        BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6);
2344                break;
2345        default:
2346                return -EINVAL;
2347        }
2348
2349        i40e_write_rx_ctl(hw, I40E_PFQF_HENA(0), (u32)hena);
2350        i40e_write_rx_ctl(hw, I40E_PFQF_HENA(1), (u32)(hena >> 32));
2351        i40e_flush(hw);
2352
2353        /* Save setting for future output/update */
2354        pf->vsi[pf->lan_vsi]->rxnfc = *nfc;
2355
2356        return 0;
2357}
2358
2359/**
2360 * i40e_match_fdir_input_set - Match a new filter against an existing one
2361 * @rule: The filter already added
2362 * @input: The new filter to comapre against
2363 *
2364 * Returns true if the two input set match
2365 **/
2366static bool i40e_match_fdir_input_set(struct i40e_fdir_filter *rule,
2367                                      struct i40e_fdir_filter *input)
2368{
2369        if ((rule->dst_ip[0] != input->dst_ip[0]) ||
2370            (rule->src_ip[0] != input->src_ip[0]) ||
2371            (rule->dst_port != input->dst_port) ||
2372            (rule->src_port != input->src_port))
2373                return false;
2374        return true;
2375}
2376
2377/**
2378 * i40e_update_ethtool_fdir_entry - Updates the fdir filter entry
2379 * @vsi: Pointer to the targeted VSI
2380 * @input: The filter to update or NULL to indicate deletion
2381 * @sw_idx: Software index to the filter
2382 * @cmd: The command to get or set Rx flow classification rules
2383 *
2384 * This function updates (or deletes) a Flow Director entry from
2385 * the hlist of the corresponding PF
2386 *
2387 * Returns 0 on success
2388 **/
2389static int i40e_update_ethtool_fdir_entry(struct i40e_vsi *vsi,
2390                                          struct i40e_fdir_filter *input,
2391                                          u16 sw_idx,
2392                                          struct ethtool_rxnfc *cmd)
2393{
2394        struct i40e_fdir_filter *rule, *parent;
2395        struct i40e_pf *pf = vsi->back;
2396        struct hlist_node *node2;
2397        int err = -EINVAL;
2398
2399        parent = NULL;
2400        rule = NULL;
2401
2402        hlist_for_each_entry_safe(rule, node2,
2403                                  &pf->fdir_filter_list, fdir_node) {
2404                /* hash found, or no matching entry */
2405                if (rule->fd_id >= sw_idx)
2406                        break;
2407                parent = rule;
2408        }
2409
2410        /* if there is an old rule occupying our place remove it */
2411        if (rule && (rule->fd_id == sw_idx)) {
2412                if (input && !i40e_match_fdir_input_set(rule, input))
2413                        err = i40e_add_del_fdir(vsi, rule, false);
2414                else if (!input)
2415                        err = i40e_add_del_fdir(vsi, rule, false);
2416                hlist_del(&rule->fdir_node);
2417                kfree(rule);
2418                pf->fdir_pf_active_filters--;
2419        }
2420
2421        /* If no input this was a delete, err should be 0 if a rule was
2422         * successfully found and removed from the list else -EINVAL
2423         */
2424        if (!input)
2425                return err;
2426
2427        /* initialize node and set software index */
2428        INIT_HLIST_NODE(&input->fdir_node);
2429
2430        /* add filter to the list */
2431        if (parent)
2432                hlist_add_behind(&input->fdir_node, &parent->fdir_node);
2433        else
2434                hlist_add_head(&input->fdir_node,
2435                               &pf->fdir_filter_list);
2436
2437        /* update counts */
2438        pf->fdir_pf_active_filters++;
2439
2440        return 0;
2441}
2442
2443/**
2444 * i40e_del_fdir_entry - Deletes a Flow Director filter entry
2445 * @vsi: Pointer to the targeted VSI
2446 * @cmd: The command to get or set Rx flow classification rules
2447 *
2448 * The function removes a Flow Director filter entry from the
2449 * hlist of the corresponding PF
2450 *
2451 * Returns 0 on success
2452 */
2453static int i40e_del_fdir_entry(struct i40e_vsi *vsi,
2454                               struct ethtool_rxnfc *cmd)
2455{
2456        struct ethtool_rx_flow_spec *fsp =
2457                (struct ethtool_rx_flow_spec *)&cmd->fs;
2458        struct i40e_pf *pf = vsi->back;
2459        int ret = 0;
2460
2461        if (test_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state) ||
2462            test_bit(__I40E_RESET_INTR_RECEIVED, &pf->state))
2463                return -EBUSY;
2464
2465        if (test_bit(__I40E_FD_FLUSH_REQUESTED, &pf->state))
2466                return -EBUSY;
2467
2468        ret = i40e_update_ethtool_fdir_entry(vsi, NULL, fsp->location, cmd);
2469
2470        i40e_fdir_check_and_reenable(pf);
2471        return ret;
2472}
2473
2474/**
2475 * i40e_add_fdir_ethtool - Add/Remove Flow Director filters
2476 * @vsi: pointer to the targeted VSI
2477 * @cmd: command to get or set RX flow classification rules
2478 *
2479 * Add Flow Director filters for a specific flow spec based on their
2480 * protocol.  Returns 0 if the filters were successfully added.
2481 **/
2482static int i40e_add_fdir_ethtool(struct i40e_vsi *vsi,
2483                                 struct ethtool_rxnfc *cmd)
2484{
2485        struct ethtool_rx_flow_spec *fsp;
2486        struct i40e_fdir_filter *input;
2487        struct i40e_pf *pf;
2488        int ret = -EINVAL;
2489        u16 vf_id;
2490
2491        if (!vsi)
2492                return -EINVAL;
2493
2494        pf = vsi->back;
2495
2496        if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED))
2497                return -EOPNOTSUPP;
2498
2499        if (pf->auto_disable_flags & I40E_FLAG_FD_SB_ENABLED)
2500                return -ENOSPC;
2501
2502        if (test_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state) ||
2503            test_bit(__I40E_RESET_INTR_RECEIVED, &pf->state))
2504                return -EBUSY;
2505
2506        if (test_bit(__I40E_FD_FLUSH_REQUESTED, &pf->state))
2507                return -EBUSY;
2508
2509        fsp = (struct ethtool_rx_flow_spec *)&cmd->fs;
2510
2511        if (fsp->location >= (pf->hw.func_caps.fd_filters_best_effort +
2512                              pf->hw.func_caps.fd_filters_guaranteed)) {
2513                return -EINVAL;
2514        }
2515
2516        if ((fsp->ring_cookie != RX_CLS_FLOW_DISC) &&
2517            (fsp->ring_cookie >= vsi->num_queue_pairs))
2518                return -EINVAL;
2519
2520        input = kzalloc(sizeof(*input), GFP_KERNEL);
2521
2522        if (!input)
2523                return -ENOMEM;
2524
2525        input->fd_id = fsp->location;
2526
2527        if (fsp->ring_cookie == RX_CLS_FLOW_DISC)
2528                input->dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET;
2529        else
2530                input->dest_ctl =
2531                             I40E_FILTER_PROGRAM_DESC_DEST_DIRECT_PACKET_QINDEX;
2532
2533        input->q_index = fsp->ring_cookie;
2534        input->flex_off = 0;
2535        input->pctype = 0;
2536        input->dest_vsi = vsi->id;
2537        input->fd_status = I40E_FILTER_PROGRAM_DESC_FD_STATUS_FD_ID;
2538        input->cnt_index  = I40E_FD_SB_STAT_IDX(pf->hw.pf_id);
2539        input->flow_type = fsp->flow_type;
2540        input->ip4_proto = fsp->h_u.usr_ip4_spec.proto;
2541
2542        /* Reverse the src and dest notion, since the HW expects them to be from
2543         * Tx perspective where as the input from user is from Rx filter view.
2544         */
2545        input->dst_port = fsp->h_u.tcp_ip4_spec.psrc;
2546        input->src_port = fsp->h_u.tcp_ip4_spec.pdst;
2547        input->dst_ip[0] = fsp->h_u.tcp_ip4_spec.ip4src;
2548        input->src_ip[0] = fsp->h_u.tcp_ip4_spec.ip4dst;
2549
2550        if (ntohl(fsp->m_ext.data[1])) {
2551                if (ntohl(fsp->h_ext.data[1]) >= pf->num_alloc_vfs) {
2552                        netif_info(pf, drv, vsi->netdev, "Invalid VF id\n");
2553                        goto free_input;
2554                }
2555                vf_id = ntohl(fsp->h_ext.data[1]);
2556                /* Find vsi id from vf id and override dest vsi */
2557                input->dest_vsi = pf->vf[vf_id].lan_vsi_id;
2558                if (input->q_index >= pf->vf[vf_id].num_queue_pairs) {
2559                        netif_info(pf, drv, vsi->netdev, "Invalid queue id\n");
2560                        goto free_input;
2561                }
2562        }
2563
2564        ret = i40e_add_del_fdir(vsi, input, true);
2565free_input:
2566        if (ret)
2567                kfree(input);
2568        else
2569                i40e_update_ethtool_fdir_entry(vsi, input, fsp->location, NULL);
2570
2571        return ret;
2572}
2573
2574/**
2575 * i40e_set_rxnfc - command to set RX flow classification rules
2576 * @netdev: network interface device structure
2577 * @cmd: ethtool rxnfc command
2578 *
2579 * Returns Success if the command is supported.
2580 **/
2581static int i40e_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd)
2582{
2583        struct i40e_netdev_priv *np = netdev_priv(netdev);
2584        struct i40e_vsi *vsi = np->vsi;
2585        struct i40e_pf *pf = vsi->back;
2586        int ret = -EOPNOTSUPP;
2587
2588        switch (cmd->cmd) {
2589        case ETHTOOL_SRXFH:
2590                ret = i40e_set_rss_hash_opt(pf, cmd);
2591                break;
2592        case ETHTOOL_SRXCLSRLINS:
2593                ret = i40e_add_fdir_ethtool(vsi, cmd);
2594                break;
2595        case ETHTOOL_SRXCLSRLDEL:
2596                ret = i40e_del_fdir_entry(vsi, cmd);
2597                break;
2598        default:
2599                break;
2600        }
2601
2602        return ret;
2603}
2604
2605/**
2606 * i40e_max_channels - get Max number of combined channels supported
2607 * @vsi: vsi pointer
2608 **/
2609static unsigned int i40e_max_channels(struct i40e_vsi *vsi)
2610{
2611        /* TODO: This code assumes DCB and FD is disabled for now. */
2612        return vsi->alloc_queue_pairs;
2613}
2614
2615/**
2616 * i40e_get_channels - Get the current channels enabled and max supported etc.
2617 * @netdev: network interface device structure
2618 * @ch: ethtool channels structure
2619 *
2620 * We don't support separate tx and rx queues as channels. The other count
2621 * represents how many queues are being used for control. max_combined counts
2622 * how many queue pairs we can support. They may not be mapped 1 to 1 with
2623 * q_vectors since we support a lot more queue pairs than q_vectors.
2624 **/
2625static void i40e_get_channels(struct net_device *dev,
2626                               struct ethtool_channels *ch)
2627{
2628        struct i40e_netdev_priv *np = netdev_priv(dev);
2629        struct i40e_vsi *vsi = np->vsi;
2630        struct i40e_pf *pf = vsi->back;
2631
2632        /* report maximum channels */
2633        ch->max_combined = i40e_max_channels(vsi);
2634
2635        /* report info for other vector */
2636        ch->other_count = (pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0;
2637        ch->max_other = ch->other_count;
2638
2639        /* Note: This code assumes DCB is disabled for now. */
2640        ch->combined_count = vsi->num_queue_pairs;
2641}
2642
2643/**
2644 * i40e_set_channels - Set the new channels count.
2645 * @netdev: network interface device structure
2646 * @ch: ethtool channels structure
2647 *
2648 * The new channels count may not be the same as requested by the user
2649 * since it gets rounded down to a power of 2 value.
2650 **/
2651static int i40e_set_channels(struct net_device *dev,
2652                              struct ethtool_channels *ch)
2653{
2654        struct i40e_netdev_priv *np = netdev_priv(dev);
2655        unsigned int count = ch->combined_count;
2656        struct i40e_vsi *vsi = np->vsi;
2657        struct i40e_pf *pf = vsi->back;
2658        int new_count;
2659
2660        /* We do not support setting channels for any other VSI at present */
2661        if (vsi->type != I40E_VSI_MAIN)
2662                return -EINVAL;
2663
2664        /* verify they are not requesting separate vectors */
2665        if (!count || ch->rx_count || ch->tx_count)
2666                return -EINVAL;
2667
2668        /* verify other_count has not changed */
2669        if (ch->other_count != ((pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0))
2670                return -EINVAL;
2671
2672        /* verify the number of channels does not exceed hardware limits */
2673        if (count > i40e_max_channels(vsi))
2674                return -EINVAL;
2675
2676        /* update feature limits from largest to smallest supported values */
2677        /* TODO: Flow director limit, DCB etc */
2678
2679        /* use rss_reconfig to rebuild with new queue count and update traffic
2680         * class queue mapping
2681         */
2682        new_count = i40e_reconfig_rss_queues(pf, count);
2683        if (new_count > 0)
2684                return 0;
2685        else
2686                return -EINVAL;
2687}
2688
2689/**
2690 * i40e_get_rxfh_key_size - get the RSS hash key size
2691 * @netdev: network interface device structure
2692 *
2693 * Returns the table size.
2694 **/
2695static u32 i40e_get_rxfh_key_size(struct net_device *netdev)
2696{
2697        return I40E_HKEY_ARRAY_SIZE;
2698}
2699
2700/**
2701 * i40e_get_rxfh_indir_size - get the rx flow hash indirection table size
2702 * @netdev: network interface device structure
2703 *
2704 * Returns the table size.
2705 **/
2706static u32 i40e_get_rxfh_indir_size(struct net_device *netdev)
2707{
2708        return I40E_HLUT_ARRAY_SIZE;
2709}
2710
2711static int i40e_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key,
2712                         u8 *hfunc)
2713{
2714        struct i40e_netdev_priv *np = netdev_priv(netdev);
2715        struct i40e_vsi *vsi = np->vsi;
2716        u8 *lut, *seed = NULL;
2717        int ret;
2718        u16 i;
2719
2720        if (hfunc)
2721                *hfunc = ETH_RSS_HASH_TOP;
2722
2723        if (!indir)
2724                return 0;
2725
2726        seed = key;
2727        lut = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL);
2728        if (!lut)
2729                return -ENOMEM;
2730        ret = i40e_get_rss(vsi, seed, lut, I40E_HLUT_ARRAY_SIZE);
2731        if (ret)
2732                goto out;
2733        for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++)
2734                indir[i] = (u32)(lut[i]);
2735
2736out:
2737        kfree(lut);
2738
2739        return ret;
2740}
2741
2742/**
2743 * i40e_set_rxfh - set the rx flow hash indirection table
2744 * @netdev: network interface device structure
2745 * @indir: indirection table
2746 * @key: hash key
2747 *
2748 * Returns -EINVAL if the table specifies an invalid queue id, otherwise
2749 * returns 0 after programming the table.
2750 **/
2751static int i40e_set_rxfh(struct net_device *netdev, const u32 *indir,
2752                         const u8 *key, const u8 hfunc)
2753{
2754        struct i40e_netdev_priv *np = netdev_priv(netdev);
2755        struct i40e_vsi *vsi = np->vsi;
2756        u8 *seed = NULL;
2757        u16 i;
2758
2759        if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)
2760                return -EOPNOTSUPP;
2761
2762        if (!indir)
2763                return 0;
2764
2765        if (key) {
2766                if (!vsi->rss_hkey_user) {
2767                        vsi->rss_hkey_user = kzalloc(I40E_HKEY_ARRAY_SIZE,
2768                                                     GFP_KERNEL);
2769                        if (!vsi->rss_hkey_user)
2770                                return -ENOMEM;
2771                }
2772                memcpy(vsi->rss_hkey_user, key, I40E_HKEY_ARRAY_SIZE);
2773                seed = vsi->rss_hkey_user;
2774        }
2775        if (!vsi->rss_lut_user) {
2776                vsi->rss_lut_user = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL);
2777                if (!vsi->rss_lut_user)
2778                        return -ENOMEM;
2779        }
2780
2781        /* Each 32 bits pointed by 'indir' is stored with a lut entry */
2782        for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++)
2783                vsi->rss_lut_user[i] = (u8)(indir[i]);
2784
2785        return i40e_config_rss(vsi, seed, vsi->rss_lut_user,
2786                               I40E_HLUT_ARRAY_SIZE);
2787}
2788
2789/**
2790 * i40e_get_priv_flags - report device private flags
2791 * @dev: network interface device structure
2792 *
2793 * The get string set count and the string set should be matched for each
2794 * flag returned.  Add new strings for each flag to the i40e_priv_flags_strings
2795 * array.
2796 *
2797 * Returns a u32 bitmap of flags.
2798 **/
2799static u32 i40e_get_priv_flags(struct net_device *dev)
2800{
2801        struct i40e_netdev_priv *np = netdev_priv(dev);
2802        struct i40e_vsi *vsi = np->vsi;
2803        struct i40e_pf *pf = vsi->back;
2804        u32 ret_flags = 0;
2805
2806        ret_flags |= pf->hw.func_caps.npar_enable ?
2807                I40E_PRIV_FLAGS_NPAR_FLAG : 0;
2808        ret_flags |= pf->flags & I40E_FLAG_LINK_POLLING_ENABLED ?
2809                I40E_PRIV_FLAGS_LINKPOLL_FLAG : 0;
2810        ret_flags |= pf->flags & I40E_FLAG_FD_ATR_ENABLED ?
2811                I40E_PRIV_FLAGS_FD_ATR : 0;
2812        ret_flags |= pf->flags & I40E_FLAG_VEB_STATS_ENABLED ?
2813                I40E_PRIV_FLAGS_VEB_STATS : 0;
2814        ret_flags |= pf->flags & I40E_FLAG_RX_PS_ENABLED ?
2815                I40E_PRIV_FLAGS_PS : 0;
2816        ret_flags |= pf->auto_disable_flags & I40E_FLAG_HW_ATR_EVICT_CAPABLE ?
2817                0 : I40E_PRIV_FLAGS_HW_ATR_EVICT;
2818
2819        return ret_flags;
2820}
2821
2822/**
2823 * i40e_set_priv_flags - set private flags
2824 * @dev: network interface device structure
2825 * @flags: bit flags to be set
2826 **/
2827static int i40e_set_priv_flags(struct net_device *dev, u32 flags)
2828{
2829        struct i40e_netdev_priv *np = netdev_priv(dev);
2830        struct i40e_vsi *vsi = np->vsi;
2831        struct i40e_pf *pf = vsi->back;
2832        bool reset_required = false;
2833
2834        /* NOTE: MFP is not settable */
2835
2836        /* allow the user to control the method of receive
2837         * buffer DMA, whether the packet is split at header
2838         * boundaries into two separate buffers.  In some cases
2839         * one routine or the other will perform better.
2840         */
2841        if ((flags & I40E_PRIV_FLAGS_PS) &&
2842            !(pf->flags & I40E_FLAG_RX_PS_ENABLED)) {
2843                pf->flags |= I40E_FLAG_RX_PS_ENABLED;
2844                pf->flags &= ~I40E_FLAG_RX_1BUF_ENABLED;
2845                reset_required = true;
2846        } else if (!(flags & I40E_PRIV_FLAGS_PS) &&
2847                   (pf->flags & I40E_FLAG_RX_PS_ENABLED)) {
2848                pf->flags &= ~I40E_FLAG_RX_PS_ENABLED;
2849                pf->flags |= I40E_FLAG_RX_1BUF_ENABLED;
2850                reset_required = true;
2851        }
2852
2853        if (flags & I40E_PRIV_FLAGS_LINKPOLL_FLAG)
2854                pf->flags |= I40E_FLAG_LINK_POLLING_ENABLED;
2855        else
2856                pf->flags &= ~I40E_FLAG_LINK_POLLING_ENABLED;
2857
2858        /* allow the user to control the state of the Flow
2859         * Director ATR (Application Targeted Routing) feature
2860         * of the driver
2861         */
2862        if (flags & I40E_PRIV_FLAGS_FD_ATR) {
2863                pf->flags |= I40E_FLAG_FD_ATR_ENABLED;
2864        } else {
2865                pf->flags &= ~I40E_FLAG_FD_ATR_ENABLED;
2866                pf->auto_disable_flags |= I40E_FLAG_FD_ATR_ENABLED;
2867        }
2868
2869        if ((flags & I40E_PRIV_FLAGS_VEB_STATS) &&
2870            !(pf->flags & I40E_FLAG_VEB_STATS_ENABLED)) {
2871                pf->flags |= I40E_FLAG_VEB_STATS_ENABLED;
2872                reset_required = true;
2873        } else if (!(flags & I40E_PRIV_FLAGS_VEB_STATS) &&
2874                   (pf->flags & I40E_FLAG_VEB_STATS_ENABLED)) {
2875                pf->flags &= ~I40E_FLAG_VEB_STATS_ENABLED;
2876                reset_required = true;
2877        }
2878
2879        if ((flags & I40E_PRIV_FLAGS_HW_ATR_EVICT) &&
2880            (pf->flags & I40E_FLAG_HW_ATR_EVICT_CAPABLE))
2881                pf->auto_disable_flags &= ~I40E_FLAG_HW_ATR_EVICT_CAPABLE;
2882        else
2883                pf->auto_disable_flags |= I40E_FLAG_HW_ATR_EVICT_CAPABLE;
2884
2885        /* if needed, issue reset to cause things to take effect */
2886        if (reset_required)
2887                i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED));
2888
2889        return 0;
2890}
2891
2892static const struct ethtool_ops i40e_ethtool_ops = {
2893        .get_settings           = i40e_get_settings,
2894        .set_settings           = i40e_set_settings,
2895        .get_drvinfo            = i40e_get_drvinfo,
2896        .get_regs_len           = i40e_get_regs_len,
2897        .get_regs               = i40e_get_regs,
2898        .nway_reset             = i40e_nway_reset,
2899        .get_link               = ethtool_op_get_link,
2900        .get_wol                = i40e_get_wol,
2901        .set_wol                = i40e_set_wol,
2902        .set_eeprom             = i40e_set_eeprom,
2903        .get_eeprom_len         = i40e_get_eeprom_len,
2904        .get_eeprom             = i40e_get_eeprom,
2905        .get_ringparam          = i40e_get_ringparam,
2906        .set_ringparam          = i40e_set_ringparam,
2907        .get_pauseparam         = i40e_get_pauseparam,
2908        .set_pauseparam         = i40e_set_pauseparam,
2909        .get_msglevel           = i40e_get_msglevel,
2910        .set_msglevel           = i40e_set_msglevel,
2911        .get_rxnfc              = i40e_get_rxnfc,
2912        .set_rxnfc              = i40e_set_rxnfc,
2913        .self_test              = i40e_diag_test,
2914        .get_strings            = i40e_get_strings,
2915        .set_phys_id            = i40e_set_phys_id,
2916        .get_sset_count         = i40e_get_sset_count,
2917        .get_ethtool_stats      = i40e_get_ethtool_stats,
2918        .get_coalesce           = i40e_get_coalesce,
2919        .set_coalesce           = i40e_set_coalesce,
2920        .get_rxfh_key_size      = i40e_get_rxfh_key_size,
2921        .get_rxfh_indir_size    = i40e_get_rxfh_indir_size,
2922        .get_rxfh               = i40e_get_rxfh,
2923        .set_rxfh               = i40e_set_rxfh,
2924        .get_channels           = i40e_get_channels,
2925        .set_channels           = i40e_set_channels,
2926        .get_ts_info            = i40e_get_ts_info,
2927        .get_priv_flags         = i40e_get_priv_flags,
2928        .set_priv_flags         = i40e_set_priv_flags,
2929        .get_per_queue_coalesce = i40e_get_per_queue_coalesce,
2930        .set_per_queue_coalesce = i40e_set_per_queue_coalesce,
2931};
2932
2933void i40e_set_ethtool_ops(struct net_device *netdev)
2934{
2935        netdev->ethtool_ops = &i40e_ethtool_ops;
2936}
2937