drivers/net/ethernet/intel/i40e/i40e_ethtool.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /* Copyright(c) 2013 - 2018 Intel Corporation. */
   3
   4 /* ethtool support for i40e */
   5
   6 #include "i40e.h"
   7 #include "i40e_diag.h"
   8
   9 struct i40e_stats {
  10         char stat_string[ETH_GSTRING_LEN];
  11         int sizeof_stat;
  12         int stat_offset;
  13 };
  14
  15 #define I40E_STAT(_type, _name, _stat) { \
  16         .stat_string = _name, \
  17         .sizeof_stat = FIELD_SIZEOF(_type, _stat), \
  18         .stat_offset = offsetof(_type, _stat) \
  19 }
  20
  21 #define I40E_NETDEV_STAT(_net_stat) \
  22         I40E_STAT(struct rtnl_link_stats64, #_net_stat, _net_stat)
  23 #define I40E_PF_STAT(_name, _stat) \
  24         I40E_STAT(struct i40e_pf, _name, _stat)
  25 #define I40E_VSI_STAT(_name, _stat) \
  26         I40E_STAT(struct i40e_vsi, _name, _stat)
  27 #define I40E_VEB_STAT(_name, _stat) \
  28         I40E_STAT(struct i40e_veb, _name, _stat)
  29
  30 static const struct i40e_stats i40e_gstrings_net_stats[] = {
  31         I40E_NETDEV_STAT(rx_packets),
  32         I40E_NETDEV_STAT(tx_packets),
  33         I40E_NETDEV_STAT(rx_bytes),
  34         I40E_NETDEV_STAT(tx_bytes),
  35         I40E_NETDEV_STAT(rx_errors),
  36         I40E_NETDEV_STAT(tx_errors),
  37         I40E_NETDEV_STAT(rx_dropped),
  38         I40E_NETDEV_STAT(tx_dropped),
  39         I40E_NETDEV_STAT(collisions),
  40         I40E_NETDEV_STAT(rx_length_errors),
  41         I40E_NETDEV_STAT(rx_crc_errors),
  42 };
  43
  44 static const struct i40e_stats i40e_gstrings_veb_stats[] = {
  45         I40E_VEB_STAT("veb.rx_bytes", stats.rx_bytes),
  46         I40E_VEB_STAT("veb.tx_bytes", stats.tx_bytes),
  47         I40E_VEB_STAT("veb.rx_unicast", stats.rx_unicast),
  48         I40E_VEB_STAT("veb.tx_unicast", stats.tx_unicast),
  49         I40E_VEB_STAT("veb.rx_multicast", stats.rx_multicast),
  50         I40E_VEB_STAT("veb.tx_multicast", stats.tx_multicast),
  51         I40E_VEB_STAT("veb.rx_broadcast", stats.rx_broadcast),
  52         I40E_VEB_STAT("veb.tx_broadcast", stats.tx_broadcast),
  53         I40E_VEB_STAT("veb.rx_discards", stats.rx_discards),
  54         I40E_VEB_STAT("veb.tx_discards", stats.tx_discards),
  55         I40E_VEB_STAT("veb.tx_errors", stats.tx_errors),
  56         I40E_VEB_STAT("veb.rx_unknown_protocol", stats.rx_unknown_protocol),
  57 };
  58
  59 static const struct i40e_stats i40e_gstrings_misc_stats[] = {
  60         I40E_VSI_STAT("rx_unicast", eth_stats.rx_unicast),
  61         I40E_VSI_STAT("tx_unicast", eth_stats.tx_unicast),
  62         I40E_VSI_STAT("rx_multicast", eth_stats.rx_multicast),
  63         I40E_VSI_STAT("tx_multicast", eth_stats.tx_multicast),
  64         I40E_VSI_STAT("rx_broadcast", eth_stats.rx_broadcast),
  65         I40E_VSI_STAT("tx_broadcast", eth_stats.tx_broadcast),
  66         I40E_VSI_STAT("rx_unknown_protocol", eth_stats.rx_unknown_protocol),
  67         I40E_VSI_STAT("tx_linearize", tx_linearize),
  68         I40E_VSI_STAT("tx_force_wb", tx_force_wb),
  69         I40E_VSI_STAT("tx_busy", tx_busy),
  70         I40E_VSI_STAT("rx_alloc_fail", rx_buf_failed),
  71         I40E_VSI_STAT("rx_pg_alloc_fail", rx_page_failed),
  72 };
  73
  74 /* These PF_STATs might look like duplicates of some NETDEV_STATs,
  75  * but they are separate.  This device supports Virtualization, and
  76  * as such might have several netdevs supporting VMDq and FCoE going
  77  * through a single port.  The NETDEV_STATs are for individual netdevs
  78  * seen at the top of the stack, and the PF_STATs are for the physical
  79  * function at the bottom of the stack hosting those netdevs.
  80  *
  81  * The PF_STATs are appended to the netdev stats only when ethtool -S
  82  * is queried on the base PF netdev, not on the VMDq or FCoE netdev.
  83  */
  84 static const struct i40e_stats i40e_gstrings_stats[] = {
  85         I40E_PF_STAT("port.rx_bytes", stats.eth.rx_bytes),
  86         I40E_PF_STAT("port.tx_bytes", stats.eth.tx_bytes),
  87         I40E_PF_STAT("port.rx_unicast", stats.eth.rx_unicast),
  88         I40E_PF_STAT("port.tx_unicast", stats.eth.tx_unicast),
  89         I40E_PF_STAT("port.rx_multicast", stats.eth.rx_multicast),
  90         I40E_PF_STAT("port.tx_multicast", stats.eth.tx_multicast),
  91         I40E_PF_STAT("port.rx_broadcast", stats.eth.rx_broadcast),
  92         I40E_PF_STAT("port.tx_broadcast", stats.eth.tx_broadcast),
  93         I40E_PF_STAT("port.tx_errors", stats.eth.tx_errors),
  94         I40E_PF_STAT("port.rx_dropped", stats.eth.rx_discards),
  95         I40E_PF_STAT("port.tx_dropped_link_down", stats.tx_dropped_link_down),
  96         I40E_PF_STAT("port.rx_crc_errors", stats.crc_errors),
  97         I40E_PF_STAT("port.illegal_bytes", stats.illegal_bytes),
  98         I40E_PF_STAT("port.mac_local_faults", stats.mac_local_faults),
  99         I40E_PF_STAT("port.mac_remote_faults", stats.mac_remote_faults),
 100         I40E_PF_STAT("port.tx_timeout", tx_timeout_count),
 101         I40E_PF_STAT("port.rx_csum_bad", hw_csum_rx_error),
 102         I40E_PF_STAT("port.rx_length_errors", stats.rx_length_errors),
 103         I40E_PF_STAT("port.link_xon_rx", stats.link_xon_rx),
 104         I40E_PF_STAT("port.link_xoff_rx", stats.link_xoff_rx),
 105         I40E_PF_STAT("port.link_xon_tx", stats.link_xon_tx),
 106         I40E_PF_STAT("port.link_xoff_tx", stats.link_xoff_tx),
 107         I40E_PF_STAT("port.rx_size_64", stats.rx_size_64),
 108         I40E_PF_STAT("port.rx_size_127", stats.rx_size_127),
 109         I40E_PF_STAT("port.rx_size_255", stats.rx_size_255),
 110         I40E_PF_STAT("port.rx_size_511", stats.rx_size_511),
 111         I40E_PF_STAT("port.rx_size_1023", stats.rx_size_1023),
 112         I40E_PF_STAT("port.rx_size_1522", stats.rx_size_1522),
 113         I40E_PF_STAT("port.rx_size_big", stats.rx_size_big),
 114         I40E_PF_STAT("port.tx_size_64", stats.tx_size_64),
 115         I40E_PF_STAT("port.tx_size_127", stats.tx_size_127),
 116         I40E_PF_STAT("port.tx_size_255", stats.tx_size_255),
 117         I40E_PF_STAT("port.tx_size_511", stats.tx_size_511),
 118         I40E_PF_STAT("port.tx_size_1023", stats.tx_size_1023),
 119         I40E_PF_STAT("port.tx_size_1522", stats.tx_size_1522),
 120         I40E_PF_STAT("port.tx_size_big", stats.tx_size_big),
 121         I40E_PF_STAT("port.rx_undersize", stats.rx_undersize),
 122         I40E_PF_STAT("port.rx_fragments", stats.rx_fragments),
 123         I40E_PF_STAT("port.rx_oversize", stats.rx_oversize),
 124         I40E_PF_STAT("port.rx_jabber", stats.rx_jabber),
 125         I40E_PF_STAT("port.VF_admin_queue_requests", vf_aq_requests),
 126         I40E_PF_STAT("port.arq_overflows", arq_overflows),
 127         I40E_PF_STAT("port.tx_hwtstamp_timeouts", tx_hwtstamp_timeouts),
 128         I40E_PF_STAT("port.rx_hwtstamp_cleared", rx_hwtstamp_cleared),
 129         I40E_PF_STAT("port.tx_hwtstamp_skipped", tx_hwtstamp_skipped),
 130         I40E_PF_STAT("port.fdir_flush_cnt", fd_flush_cnt),
 131         I40E_PF_STAT("port.fdir_atr_match", stats.fd_atr_match),
 132         I40E_PF_STAT("port.fdir_atr_tunnel_match", stats.fd_atr_tunnel_match),
 133         I40E_PF_STAT("port.fdir_atr_status", stats.fd_atr_status),
 134         I40E_PF_STAT("port.fdir_sb_match", stats.fd_sb_match),
 135         I40E_PF_STAT("port.fdir_sb_status", stats.fd_sb_status),
 136
 137         /* LPI stats */
 138         I40E_PF_STAT("port.tx_lpi_status", stats.tx_lpi_status),
 139         I40E_PF_STAT("port.rx_lpi_status", stats.rx_lpi_status),
 140         I40E_PF_STAT("port.tx_lpi_count", stats.tx_lpi_count),
 141         I40E_PF_STAT("port.rx_lpi_count", stats.rx_lpi_count),
 142 };
 143
 144 /* We use num_tx_queues here as a proxy for the maximum number of queues
 145  * available because we always allocate queues symmetrically.
 146  */
 147 #define I40E_MAX_NUM_QUEUES(n) ((n)->num_tx_queues)
 148 #define I40E_QUEUE_STATS_LEN(n)                                              \
 149            (I40E_MAX_NUM_QUEUES(n)                                           \
 150             * 2 /* Tx and Rx together */                                     \
 151             * (sizeof(struct i40e_queue_stats) / sizeof(u64)))
 152 #define I40E_GLOBAL_STATS_LEN   ARRAY_SIZE(i40e_gstrings_stats)
 153 #define I40E_NETDEV_STATS_LEN   ARRAY_SIZE(i40e_gstrings_net_stats)
 154 #define I40E_MISC_STATS_LEN     ARRAY_SIZE(i40e_gstrings_misc_stats)
 155 #define I40E_VSI_STATS_LEN(n)   (I40E_NETDEV_STATS_LEN + \
 156                                  I40E_MISC_STATS_LEN + \
 157                                  I40E_QUEUE_STATS_LEN((n)))
 158 #define I40E_PFC_STATS_LEN ( \
 159                 (FIELD_SIZEOF(struct i40e_pf, stats.priority_xoff_rx) + \
 160                  FIELD_SIZEOF(struct i40e_pf, stats.priority_xon_rx) + \
 161                  FIELD_SIZEOF(struct i40e_pf, stats.priority_xoff_tx) + \
 162                  FIELD_SIZEOF(struct i40e_pf, stats.priority_xon_tx) + \
 163                  FIELD_SIZEOF(struct i40e_pf, stats.priority_xon_2_xoff)) \
 164                  / sizeof(u64))
 165 #define I40E_VEB_TC_STATS_LEN ( \
 166                 (FIELD_SIZEOF(struct i40e_veb, tc_stats.tc_rx_packets) + \
 167                  FIELD_SIZEOF(struct i40e_veb, tc_stats.tc_rx_bytes) + \
 168                  FIELD_SIZEOF(struct i40e_veb, tc_stats.tc_tx_packets) + \
 169                  FIELD_SIZEOF(struct i40e_veb, tc_stats.tc_tx_bytes)) \
 170                  / sizeof(u64))
 171 #define I40E_VEB_STATS_LEN      ARRAY_SIZE(i40e_gstrings_veb_stats)
 172 #define I40E_VEB_STATS_TOTAL    (I40E_VEB_STATS_LEN + I40E_VEB_TC_STATS_LEN)
 173 #define I40E_PF_STATS_LEN(n)    (I40E_GLOBAL_STATS_LEN + \
 174                                  I40E_PFC_STATS_LEN + \
 175                                  I40E_VSI_STATS_LEN((n)))
 176
 177 enum i40e_ethtool_test_id {
 178         I40E_ETH_TEST_REG = 0,
 179         I40E_ETH_TEST_EEPROM,
 180         I40E_ETH_TEST_INTR,
 181         I40E_ETH_TEST_LINK,
 182 };
 183
 184 static const char i40e_gstrings_test[][ETH_GSTRING_LEN] = {
 185         "Register test  (offline)",
 186         "Eeprom test    (offline)",
 187         "Interrupt test (offline)",
 188         "Link test   (on/offline)"
 189 };
 190
 191 #define I40E_TEST_LEN (sizeof(i40e_gstrings_test) / ETH_GSTRING_LEN)
 192
 193 struct i40e_priv_flags {
 194         char flag_string[ETH_GSTRING_LEN];
 195         u64 flag;
 196         bool read_only;
 197 };
 198
 199 #define I40E_PRIV_FLAG(_name, _flag, _read_only) { \
 200         .flag_string = _name, \
 201         .flag = _flag, \
 202         .read_only = _read_only, \
 203 }
 204
 205 static const struct i40e_priv_flags i40e_gstrings_priv_flags[] = {
 206         /* NOTE: MFP setting cannot be changed */
 207         I40E_PRIV_FLAG("MFP", I40E_FLAG_MFP_ENABLED, 1),
 208         I40E_PRIV_FLAG("LinkPolling", I40E_FLAG_LINK_POLLING_ENABLED, 0),
 209         I40E_PRIV_FLAG("flow-director-atr", I40E_FLAG_FD_ATR_ENABLED, 0),
 210         I40E_PRIV_FLAG("veb-stats", I40E_FLAG_VEB_STATS_ENABLED, 0),
 211         I40E_PRIV_FLAG("hw-atr-eviction", I40E_FLAG_HW_ATR_EVICT_ENABLED, 0),
 212         I40E_PRIV_FLAG("link-down-on-close",
 213                        I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED, 0),
 214         I40E_PRIV_FLAG("legacy-rx", I40E_FLAG_LEGACY_RX, 0),
 215         I40E_PRIV_FLAG("disable-source-pruning",
 216                        I40E_FLAG_SOURCE_PRUNING_DISABLED, 0),
 217         I40E_PRIV_FLAG("disable-fw-lldp", I40E_FLAG_DISABLE_FW_LLDP, 0),
 218 };
 219
 220 #define I40E_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_gstrings_priv_flags)
 221
 222 /* Private flags with a global effect, restricted to PF 0 */
 223 static const struct i40e_priv_flags i40e_gl_gstrings_priv_flags[] = {
 224         I40E_PRIV_FLAG("vf-true-promisc-support",
 225                        I40E_FLAG_TRUE_PROMISC_SUPPORT, 0),
 226 };
 227
 228 #define I40E_GL_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_gl_gstrings_priv_flags)
 229
 230 /**
 231  * i40e_partition_setting_complaint - generic complaint for MFP restriction
 232  * @pf: the PF struct
 233  **/
 234 static void i40e_partition_setting_complaint(struct i40e_pf *pf)
 235 {
 236         dev_info(&pf->pdev->dev,
 237                  "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");
 238 }
 239
 240 /**
 241  * i40e_phy_type_to_ethtool - convert the phy_types to ethtool link modes
 242  * @pf: PF struct with phy_types
 243  * @ks: ethtool link ksettings struct to fill out
 244  *
 245  **/
 246 static void i40e_phy_type_to_ethtool(struct i40e_pf *pf,
 247                                      struct ethtool_link_ksettings *ks)
 248 {
 249         struct i40e_link_status *hw_link_info = &pf->hw.phy.link_info;
 250         u64 phy_types = pf->hw.phy.phy_types;
 251
 252         ethtool_link_ksettings_zero_link_mode(ks, supported);
 253         ethtool_link_ksettings_zero_link_mode(ks, advertising);
 254
 255         if (phy_types & I40E_CAP_PHY_TYPE_SGMII) {
 256                 ethtool_link_ksettings_add_link_mode(ks, supported,
 257                                                      1000baseT_Full);
 258                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 259                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 260                                                              1000baseT_Full);
 261                 if (pf->hw_features & I40E_HW_100M_SGMII_CAPABLE) {
 262                         ethtool_link_ksettings_add_link_mode(ks, supported,
 263                                                              100baseT_Full);
 264                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 265                                                              100baseT_Full);
 266                 }
 267         }
 268         if (phy_types & I40E_CAP_PHY_TYPE_XAUI ||
 269             phy_types & I40E_CAP_PHY_TYPE_XFI ||
 270             phy_types & I40E_CAP_PHY_TYPE_SFI ||
 271             phy_types & I40E_CAP_PHY_TYPE_10GBASE_SFPP_CU ||
 272             phy_types & I40E_CAP_PHY_TYPE_10GBASE_AOC) {
 273                 ethtool_link_ksettings_add_link_mode(ks, supported,
 274                                                      10000baseT_Full);
 275                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 276                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 277                                                              10000baseT_Full);
 278         }
 279         if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_T) {
 280                 ethtool_link_ksettings_add_link_mode(ks, supported,
 281                                                      10000baseT_Full);
 282                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 283                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 284                                                              10000baseT_Full);
 285         }
 286         if (phy_types & I40E_CAP_PHY_TYPE_XLAUI ||
 287             phy_types & I40E_CAP_PHY_TYPE_XLPPI ||
 288             phy_types & I40E_CAP_PHY_TYPE_40GBASE_AOC)
 289                 ethtool_link_ksettings_add_link_mode(ks, supported,
 290                                                      40000baseCR4_Full);
 291         if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4_CU ||
 292             phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4) {
 293                 ethtool_link_ksettings_add_link_mode(ks, supported,
 294                                                      40000baseCR4_Full);
 295                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_40GB)
 296                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 297                                                              40000baseCR4_Full);
 298         }
 299         if (phy_types & I40E_CAP_PHY_TYPE_100BASE_TX) {
 300                 ethtool_link_ksettings_add_link_mode(ks, supported,
 301                                                      100baseT_Full);
 302                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB)
 303                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 304                                                              100baseT_Full);
 305         }
 306         if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_T) {
 307                 ethtool_link_ksettings_add_link_mode(ks, supported,
 308                                                      1000baseT_Full);
 309                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 310                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 311                                                              1000baseT_Full);
 312         }
 313         if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_SR4)
 314                 ethtool_link_ksettings_add_link_mode(ks, supported,
 315                                                      40000baseSR4_Full);
 316         if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_LR4)
 317                 ethtool_link_ksettings_add_link_mode(ks, supported,
 318                                                      40000baseLR4_Full);
 319         if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_KR4) {
 320                 ethtool_link_ksettings_add_link_mode(ks, supported,
 321                                                      40000baseLR4_Full);
 322                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 323                                                      40000baseLR4_Full);
 324         }
 325         if (phy_types & I40E_CAP_PHY_TYPE_20GBASE_KR2) {
 326                 ethtool_link_ksettings_add_link_mode(ks, supported,
 327                                                      20000baseKR2_Full);
 328                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_20GB)
 329                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 330                                                              20000baseKR2_Full);
 331         }
 332         if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4) {
 333                 ethtool_link_ksettings_add_link_mode(ks, supported,
 334                                                      10000baseKX4_Full);
 335                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 336                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 337                                                              10000baseKX4_Full);
 338         }
 339         if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KR &&
 340             !(pf->hw_features & I40E_HW_HAVE_CRT_RETIMER)) {
 341                 ethtool_link_ksettings_add_link_mode(ks, supported,
 342                                                      10000baseKR_Full);
 343                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 344                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 345                                                              10000baseKR_Full);
 346         }
 347         if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_KX &&
 348             !(pf->hw_features & I40E_HW_HAVE_CRT_RETIMER)) {
 349                 ethtool_link_ksettings_add_link_mode(ks, supported,
 350                                                      1000baseKX_Full);
 351                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 352                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 353                                                              1000baseKX_Full);
 354         }
 355         /* need to add 25G PHY types */
 356         if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR) {
 357                 ethtool_link_ksettings_add_link_mode(ks, supported,
 358                                                      25000baseKR_Full);
 359                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB)
 360                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 361                                                              25000baseKR_Full);
 362         }
 363         if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR) {
 364                 ethtool_link_ksettings_add_link_mode(ks, supported,
 365                                                      25000baseCR_Full);
 366                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB)
 367                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 368                                                              25000baseCR_Full);
 369         }
 370         if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR ||
 371             phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR) {
 372                 ethtool_link_ksettings_add_link_mode(ks, supported,
 373                                                      25000baseSR_Full);
 374                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB)
 375                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 376                                                              25000baseSR_Full);
 377         }
 378         if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_AOC ||
 379             phy_types & I40E_CAP_PHY_TYPE_25GBASE_ACC) {
 380                 ethtool_link_ksettings_add_link_mode(ks, supported,
 381                                                      25000baseCR_Full);
 382                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB)
 383                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 384                                                              25000baseCR_Full);
 385         }
 386         /* need to add new 10G PHY types */
 387         if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1 ||
 388             phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1_CU) {
 389                 ethtool_link_ksettings_add_link_mode(ks, supported,
 390                                                      10000baseCR_Full);
 391                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 392                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 393                                                              10000baseCR_Full);
 394         }
 395         if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_SR) {
 396                 ethtool_link_ksettings_add_link_mode(ks, supported,
 397                                                      10000baseSR_Full);
 398                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 399                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 400                                                              10000baseSR_Full);
 401         }
 402         if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_LR) {
 403                 ethtool_link_ksettings_add_link_mode(ks, supported,
 404                                                      10000baseLR_Full);
 405                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 406                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 407                                                              10000baseLR_Full);
 408         }
 409         if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_SX ||
 410             phy_types & I40E_CAP_PHY_TYPE_1000BASE_LX ||
 411             phy_types & I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL) {
 412                 ethtool_link_ksettings_add_link_mode(ks, supported,
 413                                                      1000baseX_Full);
 414                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 415                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 416                                                              1000baseX_Full);
 417         }
 418         /* Autoneg PHY types */
 419         if (phy_types & I40E_CAP_PHY_TYPE_SGMII ||
 420             phy_types & I40E_CAP_PHY_TYPE_40GBASE_KR4 ||
 421             phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4_CU ||
 422             phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4 ||
 423             phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR ||
 424             phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR ||
 425             phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR ||
 426             phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR ||
 427             phy_types & I40E_CAP_PHY_TYPE_20GBASE_KR2 ||
 428             phy_types & I40E_CAP_PHY_TYPE_10GBASE_T ||
 429             phy_types & I40E_CAP_PHY_TYPE_10GBASE_SR ||
 430             phy_types & I40E_CAP_PHY_TYPE_10GBASE_LR ||
 431             phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4 ||
 432             phy_types & I40E_CAP_PHY_TYPE_10GBASE_KR ||
 433             phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1_CU ||
 434             phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1 ||
 435             phy_types & I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL ||
 436             phy_types & I40E_CAP_PHY_TYPE_1000BASE_T ||
 437             phy_types & I40E_CAP_PHY_TYPE_1000BASE_SX ||
 438             phy_types & I40E_CAP_PHY_TYPE_1000BASE_LX ||
 439             phy_types & I40E_CAP_PHY_TYPE_1000BASE_KX ||
 440             phy_types & I40E_CAP_PHY_TYPE_100BASE_TX) {
 441                 ethtool_link_ksettings_add_link_mode(ks, supported,
 442                                                      Autoneg);
 443                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 444                                                      Autoneg);
 445         }
 446 }
 447
 448 /**
 449  * i40e_get_settings_link_up - Get the Link settings for when link is up
 450  * @hw: hw structure
 451  * @ks: ethtool ksettings to fill in
 452  * @netdev: network interface device structure
 453  * @pf: pointer to physical function struct
 454  **/
 455 static void i40e_get_settings_link_up(struct i40e_hw *hw,
 456                                       struct ethtool_link_ksettings *ks,
 457                                       struct net_device *netdev,
 458                                       struct i40e_pf *pf)
 459 {
 460         struct i40e_link_status *hw_link_info = &hw->phy.link_info;
 461         struct ethtool_link_ksettings cap_ksettings;
 462         u32 link_speed = hw_link_info->link_speed;
 463
 464         /* Initialize supported and advertised settings based on phy settings */
 465         switch (hw_link_info->phy_type) {
 466         case I40E_PHY_TYPE_40GBASE_CR4:
 467         case I40E_PHY_TYPE_40GBASE_CR4_CU:
 468                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 469                 ethtool_link_ksettings_add_link_mode(ks, supported,
 470                                                      40000baseCR4_Full);
 471                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 472                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 473                                                      40000baseCR4_Full);
 474                 break;
 475         case I40E_PHY_TYPE_XLAUI:
 476         case I40E_PHY_TYPE_XLPPI:
 477         case I40E_PHY_TYPE_40GBASE_AOC:
 478                 ethtool_link_ksettings_add_link_mode(ks, supported,
 479                                                      40000baseCR4_Full);
 480                 break;
 481         case I40E_PHY_TYPE_40GBASE_SR4:
 482                 ethtool_link_ksettings_add_link_mode(ks, supported,
 483                                                      40000baseSR4_Full);
 484                 break;
 485         case I40E_PHY_TYPE_40GBASE_LR4:
 486                 ethtool_link_ksettings_add_link_mode(ks, supported,
 487                                                      40000baseLR4_Full);
 488                 break;
 489         case I40E_PHY_TYPE_25GBASE_SR:
 490         case I40E_PHY_TYPE_25GBASE_LR:
 491         case I40E_PHY_TYPE_10GBASE_SR:
 492         case I40E_PHY_TYPE_10GBASE_LR:
 493         case I40E_PHY_TYPE_1000BASE_SX:
 494         case I40E_PHY_TYPE_1000BASE_LX:
 495                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 496                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 497                 ethtool_link_ksettings_add_link_mode(ks, supported,
 498                                                      25000baseSR_Full);
 499                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 500                                                      25000baseSR_Full);
 501                 ethtool_link_ksettings_add_link_mode(ks, supported,
 502                                                      10000baseSR_Full);
 503                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 504                                                      10000baseSR_Full);
 505                 ethtool_link_ksettings_add_link_mode(ks, supported,
 506                                                      10000baseLR_Full);
 507                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 508                                                      10000baseLR_Full);
 509                 ethtool_link_ksettings_add_link_mode(ks, supported,
 510                                                      1000baseX_Full);
 511                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 512                                                      1000baseX_Full);
 513                 ethtool_link_ksettings_add_link_mode(ks, supported,
 514                                                      10000baseT_Full);
 515                 if (hw_link_info->module_type[2] &
 516                     I40E_MODULE_TYPE_1000BASE_SX ||
 517                     hw_link_info->module_type[2] &
 518                     I40E_MODULE_TYPE_1000BASE_LX) {
 519                         ethtool_link_ksettings_add_link_mode(ks, supported,
 520                                                              1000baseT_Full);
 521                         if (hw_link_info->requested_speeds &
 522                             I40E_LINK_SPEED_1GB)
 523                                 ethtool_link_ksettings_add_link_mode(
 524                                      ks, advertising, 1000baseT_Full);
 525                 }
 526                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 527                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 528                                                              10000baseT_Full);
 529                 break;
 530         case I40E_PHY_TYPE_10GBASE_T:
 531         case I40E_PHY_TYPE_1000BASE_T:
 532         case I40E_PHY_TYPE_100BASE_TX:
 533                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 534                 ethtool_link_ksettings_add_link_mode(ks, supported,
 535                                                      10000baseT_Full);
 536                 ethtool_link_ksettings_add_link_mode(ks, supported,
 537                                                      1000baseT_Full);
 538                 ethtool_link_ksettings_add_link_mode(ks, supported,
 539                                                      100baseT_Full);
 540                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 541                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 542                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 543                                                              10000baseT_Full);
 544                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 545                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 546                                                              1000baseT_Full);
 547                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB)
 548                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 549                                                              100baseT_Full);
 550                 break;
 551         case I40E_PHY_TYPE_1000BASE_T_OPTICAL:
 552                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 553                 ethtool_link_ksettings_add_link_mode(ks, supported,
 554                                                      1000baseT_Full);
 555                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 556                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 557                                                      1000baseT_Full);
 558                 break;
 559         case I40E_PHY_TYPE_10GBASE_CR1_CU:
 560         case I40E_PHY_TYPE_10GBASE_CR1:
 561                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 562                 ethtool_link_ksettings_add_link_mode(ks, supported,
 563                                                      10000baseT_Full);
 564                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 565                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 566                                                      10000baseT_Full);
 567                 break;
 568         case I40E_PHY_TYPE_XAUI:
 569         case I40E_PHY_TYPE_XFI:
 570         case I40E_PHY_TYPE_SFI:
 571         case I40E_PHY_TYPE_10GBASE_SFPP_CU:
 572         case I40E_PHY_TYPE_10GBASE_AOC:
 573                 ethtool_link_ksettings_add_link_mode(ks, supported,
 574                                                      10000baseT_Full);
 575                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 576                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 577                                                              10000baseT_Full);
 578                 break;
 579         case I40E_PHY_TYPE_SGMII:
 580                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 581                 ethtool_link_ksettings_add_link_mode(ks, supported,
 582                                                      1000baseT_Full);
 583                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 584                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 585                                                              1000baseT_Full);
 586                 if (pf->hw_features & I40E_HW_100M_SGMII_CAPABLE) {
 587                         ethtool_link_ksettings_add_link_mode(ks, supported,
 588                                                              100baseT_Full);
 589                         if (hw_link_info->requested_speeds &
 590                             I40E_LINK_SPEED_100MB)
 591                                 ethtool_link_ksettings_add_link_mode(
 592                                       ks, advertising, 100baseT_Full);
 593                 }
 594                 break;
 595         case I40E_PHY_TYPE_40GBASE_KR4:
 596         case I40E_PHY_TYPE_25GBASE_KR:
 597         case I40E_PHY_TYPE_20GBASE_KR2:
 598         case I40E_PHY_TYPE_10GBASE_KR:
 599         case I40E_PHY_TYPE_10GBASE_KX4:
 600         case I40E_PHY_TYPE_1000BASE_KX:
 601                 ethtool_link_ksettings_add_link_mode(ks, supported,
 602                                                      40000baseKR4_Full);
 603                 ethtool_link_ksettings_add_link_mode(ks, supported,
 604                                                      25000baseKR_Full);
 605                 ethtool_link_ksettings_add_link_mode(ks, supported,
 606                                                      20000baseKR2_Full);
 607                 ethtool_link_ksettings_add_link_mode(ks, supported,
 608                                                      10000baseKR_Full);
 609                 ethtool_link_ksettings_add_link_mode(ks, supported,
 610                                                      10000baseKX4_Full);
 611                 ethtool_link_ksettings_add_link_mode(ks, supported,
 612                                                      1000baseKX_Full);
 613                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 614                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 615                                                      40000baseKR4_Full);
 616                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 617                                                      25000baseKR_Full);
 618                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 619                                                      20000baseKR2_Full);
 620                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 621                                                      10000baseKR_Full);
 622                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 623                                                      10000baseKX4_Full);
 624                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 625                                                      1000baseKX_Full);
 626                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 627                 break;
 628         case I40E_PHY_TYPE_25GBASE_CR:
 629                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 630                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 631                 ethtool_link_ksettings_add_link_mode(ks, supported,
 632                                                      25000baseCR_Full);
 633                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 634                                                      25000baseCR_Full);
 635                 break;
 636         case I40E_PHY_TYPE_25GBASE_AOC:
 637         case I40E_PHY_TYPE_25GBASE_ACC:
 638                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 639                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 640                 ethtool_link_ksettings_add_link_mode(ks, supported,
 641                                                      25000baseCR_Full);
 642
 643                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 644                                                      25000baseCR_Full);
 645                 ethtool_link_ksettings_add_link_mode(ks, supported,
 646                                                      10000baseCR_Full);
 647                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 648                                                      10000baseCR_Full);
 649                 break;
 650         default:
 651                 /* if we got here and link is up something bad is afoot */
 652                 netdev_info(netdev,
 653                             "WARNING: Link is up but PHY type 0x%x is not recognized.\n",
 654                             hw_link_info->phy_type);
 655         }
 656
 657         /* Now that we've worked out everything that could be supported by the
 658          * current PHY type, get what is supported by the NVM and intersect
 659          * them to get what is truly supported
 660          */
 661         memset(&cap_ksettings, 0, sizeof(struct ethtool_link_ksettings));
 662         i40e_phy_type_to_ethtool(pf, &cap_ksettings);
 663         ethtool_intersect_link_masks(ks, &cap_ksettings);
 664
 665         /* Set speed and duplex */
 666         switch (link_speed) {
 667         case I40E_LINK_SPEED_40GB:
 668                 ks->base.speed = SPEED_40000;
 669                 break;
 670         case I40E_LINK_SPEED_25GB:
 671                 ks->base.speed = SPEED_25000;
 672                 break;
 673         case I40E_LINK_SPEED_20GB:
 674                 ks->base.speed = SPEED_20000;
 675                 break;
 676         case I40E_LINK_SPEED_10GB:
 677                 ks->base.speed = SPEED_10000;
 678                 break;
 679         case I40E_LINK_SPEED_1GB:
 680                 ks->base.speed = SPEED_1000;
 681                 break;
 682         case I40E_LINK_SPEED_100MB:
 683                 ks->base.speed = SPEED_100;
 684                 break;
 685         default:
 686                 break;
 687         }
 688         ks->base.duplex = DUPLEX_FULL;
 689 }
 690
 691 /**
 692  * i40e_get_settings_link_down - Get the Link settings for when link is down
 693  * @hw: hw structure
 694  * @ks: ethtool ksettings to fill in
 695  * @pf: pointer to physical function struct
 696  *
 697  * Reports link settings that can be determined when link is down
 698  **/
 699 static void i40e_get_settings_link_down(struct i40e_hw *hw,
 700                                         struct ethtool_link_ksettings *ks,
 701                                         struct i40e_pf *pf)
 702 {
 703         /* link is down and the driver needs to fall back on
 704          * supported phy types to figure out what info to display
 705          */
 706         i40e_phy_type_to_ethtool(pf, ks);
 707
 708         /* With no link speed and duplex are unknown */
 709         ks->base.speed = SPEED_UNKNOWN;
 710         ks->base.duplex = DUPLEX_UNKNOWN;
 711 }
 712
 713 /**
 714  * i40e_get_link_ksettings - Get Link Speed and Duplex settings
 715  * @netdev: network interface device structure
 716  * @ks: ethtool ksettings
 717  *
 718  * Reports speed/duplex settings based on media_type
 719  **/
 720 static int i40e_get_link_ksettings(struct net_device *netdev,
 721                                    struct ethtool_link_ksettings *ks)
 722 {
 723         struct i40e_netdev_priv *np = netdev_priv(netdev);
 724         struct i40e_pf *pf = np->vsi->back;
 725         struct i40e_hw *hw = &pf->hw;
 726         struct i40e_link_status *hw_link_info = &hw->phy.link_info;
 727         bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP;
 728
 729         ethtool_link_ksettings_zero_link_mode(ks, supported);
 730         ethtool_link_ksettings_zero_link_mode(ks, advertising);
 731
 732         if (link_up)
 733                 i40e_get_settings_link_up(hw, ks, netdev, pf);
 734         else
 735                 i40e_get_settings_link_down(hw, ks, pf);
 736
 737         /* Now set the settings that don't rely on link being up/down */
 738         /* Set autoneg settings */
 739         ks->base.autoneg = ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
 740                             AUTONEG_ENABLE : AUTONEG_DISABLE);
 741
 742         /* Set media type settings */
 743         switch (hw->phy.media_type) {
 744         case I40E_MEDIA_TYPE_BACKPLANE:
 745                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 746                 ethtool_link_ksettings_add_link_mode(ks, supported, Backplane);
 747                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 748                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 749                                                      Backplane);
 750                 ks->base.port = PORT_NONE;
 751                 break;
 752         case I40E_MEDIA_TYPE_BASET:
 753                 ethtool_link_ksettings_add_link_mode(ks, supported, TP);
 754                 ethtool_link_ksettings_add_link_mode(ks, advertising, TP);
 755                 ks->base.port = PORT_TP;
 756                 break;
 757         case I40E_MEDIA_TYPE_DA:
 758         case I40E_MEDIA_TYPE_CX4:
 759                 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE);
 760                 ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE);
 761                 ks->base.port = PORT_DA;
 762                 break;
 763         case I40E_MEDIA_TYPE_FIBER:
 764                 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE);
 765                 ks->base.port = PORT_FIBRE;
 766                 break;
 767         case I40E_MEDIA_TYPE_UNKNOWN:
 768         default:
 769                 ks->base.port = PORT_OTHER;
 770                 break;
 771         }
 772
 773         /* Set flow control settings */
 774         ethtool_link_ksettings_add_link_mode(ks, supported, Pause);
 775
 776         switch (hw->fc.requested_mode) {
 777         case I40E_FC_FULL:
 778                 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause);
 779                 break;
 780         case I40E_FC_TX_PAUSE:
 781                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 782                                                      Asym_Pause);
 783                 break;
 784         case I40E_FC_RX_PAUSE:
 785                 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause);
 786                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 787                                                      Asym_Pause);
 788                 break;
 789         default:
 790                 ethtool_link_ksettings_del_link_mode(ks, advertising, Pause);
 791                 ethtool_link_ksettings_del_link_mode(ks, advertising,
 792                                                      Asym_Pause);
 793                 break;
 794         }
 795
 796         return 0;
 797 }
 798
 799 /**
 800  * i40e_set_link_ksettings - Set Speed and Duplex
 801  * @netdev: network interface device structure
 802  * @ks: ethtool ksettings
 803  *
 804  * Set speed/duplex per media_types advertised/forced
 805  **/
 806 static int i40e_set_link_ksettings(struct net_device *netdev,
 807                                    const struct ethtool_link_ksettings *ks)
 808 {
 809         struct i40e_netdev_priv *np = netdev_priv(netdev);
 810         struct i40e_aq_get_phy_abilities_resp abilities;
 811         struct ethtool_link_ksettings safe_ks;
 812         struct ethtool_link_ksettings copy_ks;
 813         struct i40e_aq_set_phy_config config;
 814         struct i40e_pf *pf = np->vsi->back;
 815         struct i40e_vsi *vsi = np->vsi;
 816         struct i40e_hw *hw = &pf->hw;
 817         bool autoneg_changed = false;
 818         i40e_status status = 0;
 819         int timeout = 50;
 820         int err = 0;
 821         u8 autoneg;
 822
 823         /* Changing port settings is not supported if this isn't the
 824          * port's controlling PF
 825          */
 826         if (hw->partition_id != 1) {
 827                 i40e_partition_setting_complaint(pf);
 828                 return -EOPNOTSUPP;
 829         }
 830         if (vsi != pf->vsi[pf->lan_vsi])
 831                 return -EOPNOTSUPP;
 832         if (hw->phy.media_type != I40E_MEDIA_TYPE_BASET &&
 833             hw->phy.media_type != I40E_MEDIA_TYPE_FIBER &&
 834             hw->phy.media_type != I40E_MEDIA_TYPE_BACKPLANE &&
 835             hw->phy.media_type != I40E_MEDIA_TYPE_DA &&
 836             hw->phy.link_info.link_info & I40E_AQ_LINK_UP)
 837                 return -EOPNOTSUPP;
 838         if (hw->device_id == I40E_DEV_ID_KX_B ||
 839             hw->device_id == I40E_DEV_ID_KX_C ||
 840             hw->device_id == I40E_DEV_ID_20G_KR2 ||
 841             hw->device_id == I40E_DEV_ID_20G_KR2_A ||
 842             hw->device_id == I40E_DEV_ID_25G_B ||
 843             hw->device_id == I40E_DEV_ID_KX_X722) {
 844                 netdev_info(netdev, "Changing settings is not supported on backplane.\n");
 845                 return -EOPNOTSUPP;
 846         }
 847
 848         /* copy the ksettings to copy_ks to avoid modifying the origin */
 849         memcpy(&copy_ks, ks, sizeof(struct ethtool_link_ksettings));
 850
 851         /* save autoneg out of ksettings */
 852         autoneg = copy_ks.base.autoneg;
 853
 854         /* get our own copy of the bits to check against */
 855         memset(&safe_ks, 0, sizeof(struct ethtool_link_ksettings));
 856         safe_ks.base.cmd = copy_ks.base.cmd;
 857         safe_ks.base.link_mode_masks_nwords =
 858                 copy_ks.base.link_mode_masks_nwords;
 859         i40e_get_link_ksettings(netdev, &safe_ks);
 860
 861         /* Get link modes supported by hardware and check against modes
 862          * requested by the user.  Return an error if unsupported mode was set.
 863          */
 864         if (!bitmap_subset(copy_ks.link_modes.advertising,
 865                            safe_ks.link_modes.supported,
 866                            __ETHTOOL_LINK_MODE_MASK_NBITS))
 867                 return -EINVAL;
 868
 869         /* set autoneg back to what it currently is */
 870         copy_ks.base.autoneg = safe_ks.base.autoneg;
 871
 872         /* If copy_ks.base and safe_ks.base are not the same now, then they are
 873          * trying to set something that we do not support.
 874          */
 875         if (memcmp(&copy_ks.base, &safe_ks.base,
 876                    sizeof(struct ethtool_link_settings)))
 877                 return -EOPNOTSUPP;
 878
 879         while (test_and_set_bit(__I40E_CONFIG_BUSY, pf->state)) {
 880                 timeout--;
 881                 if (!timeout)
 882                         return -EBUSY;
 883                 usleep_range(1000, 2000);
 884         }
 885
 886         /* Get the current phy config */
 887         status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities,
 888                                               NULL);
 889         if (status) {
 890                 err = -EAGAIN;
 891                 goto done;
 892         }
 893
 894         /* Copy abilities to config in case autoneg is not
 895          * set below
 896          */
 897         memset(&config, 0, sizeof(struct i40e_aq_set_phy_config));
 898         config.abilities = abilities.abilities;
 899
 900         /* Check autoneg */
 901         if (autoneg == AUTONEG_ENABLE) {
 902                 /* If autoneg was not already enabled */
 903                 if (!(hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED)) {
 904                         /* If autoneg is not supported, return error */
 905                         if (!ethtool_link_ksettings_test_link_mode(&safe_ks,
 906                                                                    supported,
 907                                                                    Autoneg)) {
 908                                 netdev_info(netdev, "Autoneg not supported on this phy\n");
 909                                 err = -EINVAL;
 910                                 goto done;
 911                         }
 912                         /* Autoneg is allowed to change */
 913                         config.abilities = abilities.abilities |
 914                                            I40E_AQ_PHY_ENABLE_AN;
 915                         autoneg_changed = true;
 916                 }
 917         } else {
 918                 /* If autoneg is currently enabled */
 919                 if (hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED) {
 920                         /* If autoneg is supported 10GBASE_T is the only PHY
 921                          * that can disable it, so otherwise return error
 922                          */
 923                         if (ethtool_link_ksettings_test_link_mode(&safe_ks,
 924                                                                   supported,
 925                                                                   Autoneg) &&
 926                             hw->phy.link_info.phy_type !=
 927                             I40E_PHY_TYPE_10GBASE_T) {
 928                                 netdev_info(netdev, "Autoneg cannot be disabled on this phy\n");
 929                                 err = -EINVAL;
 930                                 goto done;
 931                         }
 932                         /* Autoneg is allowed to change */
 933                         config.abilities = abilities.abilities &
 934                                            ~I40E_AQ_PHY_ENABLE_AN;
 935                         autoneg_changed = true;
 936                 }
 937         }
 938
 939         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
 940                                                   100baseT_Full))
 941                 config.link_speed |= I40E_LINK_SPEED_100MB;
 942         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
 943                                                   1000baseT_Full) ||
 944             ethtool_link_ksettings_test_link_mode(ks, advertising,
 945                                                   1000baseX_Full) ||
 946             ethtool_link_ksettings_test_link_mode(ks, advertising,
 947                                                   1000baseKX_Full))
 948                 config.link_speed |= I40E_LINK_SPEED_1GB;
 949         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
 950                                                   10000baseT_Full) ||
 951             ethtool_link_ksettings_test_link_mode(ks, advertising,
 952                                                   10000baseKX4_Full) ||
 953             ethtool_link_ksettings_test_link_mode(ks, advertising,
 954                                                   10000baseKR_Full) ||
 955             ethtool_link_ksettings_test_link_mode(ks, advertising,
 956                                                   10000baseCR_Full) ||
 957             ethtool_link_ksettings_test_link_mode(ks, advertising,
 958                                                   10000baseSR_Full) ||
 959             ethtool_link_ksettings_test_link_mode(ks, advertising,
 960                                                   10000baseLR_Full))
 961                 config.link_speed |= I40E_LINK_SPEED_10GB;
 962         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
 963                                                   20000baseKR2_Full))
 964                 config.link_speed |= I40E_LINK_SPEED_20GB;
 965         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
 966                                                   25000baseCR_Full) ||
 967             ethtool_link_ksettings_test_link_mode(ks, advertising,
 968                                                   25000baseKR_Full) ||
 969             ethtool_link_ksettings_test_link_mode(ks, advertising,
 970                                                   25000baseSR_Full))
 971                 config.link_speed |= I40E_LINK_SPEED_25GB;
 972         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
 973                                                   40000baseKR4_Full) ||
 974             ethtool_link_ksettings_test_link_mode(ks, advertising,
 975                                                   40000baseCR4_Full) ||
 976             ethtool_link_ksettings_test_link_mode(ks, advertising,
 977                                                   40000baseSR4_Full) ||
 978             ethtool_link_ksettings_test_link_mode(ks, advertising,
 979                                                   40000baseLR4_Full))
 980                 config.link_speed |= I40E_LINK_SPEED_40GB;
 981
 982         /* If speed didn't get set, set it to what it currently is.
 983          * This is needed because if advertise is 0 (as it is when autoneg
 984          * is disabled) then speed won't get set.
 985          */
 986         if (!config.link_speed)
 987                 config.link_speed = abilities.link_speed;
 988         if (autoneg_changed || abilities.link_speed != config.link_speed) {
 989                 /* copy over the rest of the abilities */
 990                 config.phy_type = abilities.phy_type;
 991                 config.phy_type_ext = abilities.phy_type_ext;
 992                 config.eee_capability = abilities.eee_capability;
 993                 config.eeer = abilities.eeer_val;
 994                 config.low_power_ctrl = abilities.d3_lpan;
 995                 config.fec_config = abilities.fec_cfg_curr_mod_ext_info &
 996                                     I40E_AQ_PHY_FEC_CONFIG_MASK;
 997
 998                 /* save the requested speeds */
 999                 hw->phy.link_info.requested_speeds = config.link_speed;
1000                 /* set link and auto negotiation so changes take effect */
1001                 config.abilities |= I40E_AQ_PHY_ENABLE_ATOMIC_LINK;
1002                 /* If link is up put link down */
1003                 if (hw->phy.link_info.link_info & I40E_AQ_LINK_UP) {
1004                         /* Tell the OS link is going down, the link will go
1005                          * back up when fw says it is ready asynchronously
1006                          */
1007                         i40e_print_link_message(vsi, false);
1008                         netif_carrier_off(netdev);
1009                         netif_tx_stop_all_queues(netdev);
1010                 }
1011
1012                 /* make the aq call */
1013                 status = i40e_aq_set_phy_config(hw, &config, NULL);
1014                 if (status) {
1015                         netdev_info(netdev,
1016                                     "Set phy config failed, err %s aq_err %s\n",
1017                                     i40e_stat_str(hw, status),
1018                                     i40e_aq_str(hw, hw->aq.asq_last_status));
1019                         err = -EAGAIN;
1020                         goto done;
1021                 }
1022
1023                 status = i40e_update_link_info(hw);
1024                 if (status)
1025                         netdev_dbg(netdev,
1026                                    "Updating link info failed with err %s aq_err %s\n",
1027                                    i40e_stat_str(hw, status),
1028                                    i40e_aq_str(hw, hw->aq.asq_last_status));
1029
1030         } else {
1031                 netdev_info(netdev, "Nothing changed, exiting without setting anything.\n");
1032         }
1033
1034 done:
1035         clear_bit(__I40E_CONFIG_BUSY, pf->state);
1036
1037         return err;
1038 }
1039
1040 static int i40e_nway_reset(struct net_device *netdev)
1041 {
1042         /* restart autonegotiation */
1043         struct i40e_netdev_priv *np = netdev_priv(netdev);
1044         struct i40e_pf *pf = np->vsi->back;
1045         struct i40e_hw *hw = &pf->hw;
1046         bool link_up = hw->phy.link_info.link_info & I40E_AQ_LINK_UP;
1047         i40e_status ret = 0;
1048
1049         ret = i40e_aq_set_link_restart_an(hw, link_up, NULL);
1050         if (ret) {
1051                 netdev_info(netdev, "link restart failed, err %s aq_err %s\n",
1052                             i40e_stat_str(hw, ret),
1053                             i40e_aq_str(hw, hw->aq.asq_last_status));
1054                 return -EIO;
1055         }
1056
1057         return 0;
1058 }
1059
1060 /**
1061  * i40e_get_pauseparam -  Get Flow Control status
1062  * @netdev: netdevice structure
1063  * @pause: buffer to return pause parameters
1064  *
1065  * Return tx/rx-pause status
1066  **/
1067 static void i40e_get_pauseparam(struct net_device *netdev,
1068                                 struct ethtool_pauseparam *pause)
1069 {
1070         struct i40e_netdev_priv *np = netdev_priv(netdev);
1071         struct i40e_pf *pf = np->vsi->back;
1072         struct i40e_hw *hw = &pf->hw;
1073         struct i40e_link_status *hw_link_info = &hw->phy.link_info;
1074         struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config;
1075
1076         pause->autoneg =
1077                 ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
1078                   AUTONEG_ENABLE : AUTONEG_DISABLE);
1079
1080         /* PFC enabled so report LFC as off */
1081         if (dcbx_cfg->pfc.pfcenable) {
1082                 pause->rx_pause = 0;
1083                 pause->tx_pause = 0;
1084                 return;
1085         }
1086
1087         if (hw->fc.current_mode == I40E_FC_RX_PAUSE) {
1088                 pause->rx_pause = 1;
1089         } else if (hw->fc.current_mode == I40E_FC_TX_PAUSE) {
1090                 pause->tx_pause = 1;
1091         } else if (hw->fc.current_mode == I40E_FC_FULL) {
1092                 pause->rx_pause = 1;
1093                 pause->tx_pause = 1;
1094         }
1095 }
1096
1097 /**
1098  * i40e_set_pauseparam - Set Flow Control parameter
1099  * @netdev: network interface device structure
1100  * @pause: return tx/rx flow control status
1101  **/
1102 static int i40e_set_pauseparam(struct net_device *netdev,
1103                                struct ethtool_pauseparam *pause)
1104 {
1105         struct i40e_netdev_priv *np = netdev_priv(netdev);
1106         struct i40e_pf *pf = np->vsi->back;
1107         struct i40e_vsi *vsi = np->vsi;
1108         struct i40e_hw *hw = &pf->hw;
1109         struct i40e_link_status *hw_link_info = &hw->phy.link_info;
1110         struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config;
1111         bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP;
1112         i40e_status status;
1113         u8 aq_failures;
1114         int err = 0;
1115
1116         /* Changing the port's flow control is not supported if this isn't the
1117          * port's controlling PF
1118          */
1119         if (hw->partition_id != 1) {
1120                 i40e_partition_setting_complaint(pf);
1121                 return -EOPNOTSUPP;
1122         }
1123
1124         if (vsi != pf->vsi[pf->lan_vsi])
1125                 return -EOPNOTSUPP;
1126
1127         if (pause->autoneg != ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
1128             AUTONEG_ENABLE : AUTONEG_DISABLE)) {
1129                 netdev_info(netdev, "To change autoneg please use: ethtool -s <dev> autoneg <on|off>\n");
1130                 return -EOPNOTSUPP;
1131         }
1132
1133         /* If we have link and don't have autoneg */
1134         if (!test_bit(__I40E_DOWN, pf->state) &&
1135             !(hw_link_info->an_info & I40E_AQ_AN_COMPLETED)) {
1136                 /* Send message that it might not necessarily work*/
1137                 netdev_info(netdev, "Autoneg did not complete so changing settings may not result in an actual change.\n");
1138         }
1139
1140         if (dcbx_cfg->pfc.pfcenable) {
1141                 netdev_info(netdev,
1142                             "Priority flow control enabled. Cannot set link flow control.\n");
1143                 return -EOPNOTSUPP;
1144         }
1145
1146         if (pause->rx_pause && pause->tx_pause)
1147                 hw->fc.requested_mode = I40E_FC_FULL;
1148         else if (pause->rx_pause && !pause->tx_pause)
1149                 hw->fc.requested_mode = I40E_FC_RX_PAUSE;
1150         else if (!pause->rx_pause && pause->tx_pause)
1151                 hw->fc.requested_mode = I40E_FC_TX_PAUSE;
1152         else if (!pause->rx_pause && !pause->tx_pause)
1153                 hw->fc.requested_mode = I40E_FC_NONE;
1154         else
1155                  return -EINVAL;
1156
1157         /* Tell the OS link is going down, the link will go back up when fw
1158          * says it is ready asynchronously
1159          */
1160         i40e_print_link_message(vsi, false);
1161         netif_carrier_off(netdev);
1162         netif_tx_stop_all_queues(netdev);
1163
1164         /* Set the fc mode and only restart an if link is up*/
1165         status = i40e_set_fc(hw, &aq_failures, link_up);
1166
1167         if (aq_failures & I40E_SET_FC_AQ_FAIL_GET) {
1168                 netdev_info(netdev, "Set fc failed on the get_phy_capabilities call with err %s aq_err %s\n",
1169                             i40e_stat_str(hw, status),
1170                             i40e_aq_str(hw, hw->aq.asq_last_status));
1171                 err = -EAGAIN;
1172         }
1173         if (aq_failures & I40E_SET_FC_AQ_FAIL_SET) {
1174                 netdev_info(netdev, "Set fc failed on the set_phy_config call with err %s aq_err %s\n",
1175                             i40e_stat_str(hw, status),
1176                             i40e_aq_str(hw, hw->aq.asq_last_status));
1177                 err = -EAGAIN;
1178         }
1179         if (aq_failures & I40E_SET_FC_AQ_FAIL_UPDATE) {
1180                 netdev_info(netdev, "Set fc failed on the get_link_info call with err %s aq_err %s\n",
1181                             i40e_stat_str(hw, status),
1182                             i40e_aq_str(hw, hw->aq.asq_last_status));
1183                 err = -EAGAIN;
1184         }
1185
1186         if (!test_bit(__I40E_DOWN, pf->state)) {
1187                 /* Give it a little more time to try to come back */
1188                 msleep(75);
1189                 if (!test_bit(__I40E_DOWN, pf->state))
1190                         return i40e_nway_reset(netdev);
1191         }
1192
1193         return err;
1194 }
1195
1196 static u32 i40e_get_msglevel(struct net_device *netdev)
1197 {
1198         struct i40e_netdev_priv *np = netdev_priv(netdev);
1199         struct i40e_pf *pf = np->vsi->back;
1200         u32 debug_mask = pf->hw.debug_mask;
1201
1202         if (debug_mask)
1203                 netdev_info(netdev, "i40e debug_mask: 0x%08X\n", debug_mask);
1204
1205         return pf->msg_enable;
1206 }
1207
1208 static void i40e_set_msglevel(struct net_device *netdev, u32 data)
1209 {
1210         struct i40e_netdev_priv *np = netdev_priv(netdev);
1211         struct i40e_pf *pf = np->vsi->back;
1212
1213         if (I40E_DEBUG_USER & data)
1214                 pf->hw.debug_mask = data;
1215         else
1216                 pf->msg_enable = data;
1217 }
1218
1219 static int i40e_get_regs_len(struct net_device *netdev)
1220 {
1221         int reg_count = 0;
1222         int i;
1223
1224         for (i = 0; i40e_reg_list[i].offset != 0; i++)
1225                 reg_count += i40e_reg_list[i].elements;
1226
1227         return reg_count * sizeof(u32);
1228 }
1229
1230 static void i40e_get_regs(struct net_device *netdev, struct ethtool_regs *regs,
1231                           void *p)
1232 {
1233         struct i40e_netdev_priv *np = netdev_priv(netdev);
1234         struct i40e_pf *pf = np->vsi->back;
1235         struct i40e_hw *hw = &pf->hw;
1236         u32 *reg_buf = p;
1237         unsigned int i, j, ri;
1238         u32 reg;
1239
1240         /* Tell ethtool which driver-version-specific regs output we have.
1241          *
1242          * At some point, if we have ethtool doing special formatting of
1243          * this data, it will rely on this version number to know how to
1244          * interpret things.  Hence, this needs to be updated if/when the
1245          * diags register table is changed.
1246          */
1247         regs->version = 1;
1248
1249         /* loop through the diags reg table for what to print */
1250         ri = 0;
1251         for (i = 0; i40e_reg_list[i].offset != 0; i++) {
1252                 for (j = 0; j < i40e_reg_list[i].elements; j++) {
1253                         reg = i40e_reg_list[i].offset
1254                                 + (j * i40e_reg_list[i].stride);
1255                         reg_buf[ri++] = rd32(hw, reg);
1256                 }
1257         }
1258
1259 }
1260
1261 static int i40e_get_eeprom(struct net_device *netdev,
1262                            struct ethtool_eeprom *eeprom, u8 *bytes)
1263 {
1264         struct i40e_netdev_priv *np = netdev_priv(netdev);
1265         struct i40e_hw *hw = &np->vsi->back->hw;
1266         struct i40e_pf *pf = np->vsi->back;
1267         int ret_val = 0, len, offset;
1268         u8 *eeprom_buff;
1269         u16 i, sectors;
1270         bool last;
1271         u32 magic;
1272
1273 #define I40E_NVM_SECTOR_SIZE  4096
1274         if (eeprom->len == 0)
1275                 return -EINVAL;
1276
1277         /* check for NVMUpdate access method */
1278         magic = hw->vendor_id | (hw->device_id << 16);
1279         if (eeprom->magic && eeprom->magic != magic) {
1280                 struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom;
1281                 int errno = 0;
1282
1283                 /* make sure it is the right magic for NVMUpdate */
1284                 if ((eeprom->magic >> 16) != hw->device_id)
1285                         errno = -EINVAL;
1286                 else if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||
1287                          test_bit(__I40E_RESET_INTR_RECEIVED, pf->state))
1288                         errno = -EBUSY;
1289                 else
1290                         ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno);
1291
1292                 if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM))
1293                         dev_info(&pf->pdev->dev,
1294                                  "NVMUpdate read failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n",
1295                                  ret_val, hw->aq.asq_last_status, errno,
1296                                  (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK),
1297                                  cmd->offset, cmd->data_size);
1298
1299                 return errno;
1300         }
1301
1302         /* normal ethtool get_eeprom support */
1303         eeprom->magic = hw->vendor_id | (hw->device_id << 16);
1304
1305         eeprom_buff = kzalloc(eeprom->len, GFP_KERNEL);
1306         if (!eeprom_buff)
1307                 return -ENOMEM;
1308
1309         ret_val = i40e_acquire_nvm(hw, I40E_RESOURCE_READ);
1310         if (ret_val) {
1311                 dev_info(&pf->pdev->dev,
1312                          "Failed Acquiring NVM resource for read err=%d status=0x%x\n",
1313                          ret_val, hw->aq.asq_last_status);
1314                 goto free_buff;
1315         }
1316
1317         sectors = eeprom->len / I40E_NVM_SECTOR_SIZE;
1318         sectors += (eeprom->len % I40E_NVM_SECTOR_SIZE) ? 1 : 0;
1319         len = I40E_NVM_SECTOR_SIZE;
1320         last = false;
1321         for (i = 0; i < sectors; i++) {
1322                 if (i == (sectors - 1)) {
1323                         len = eeprom->len - (I40E_NVM_SECTOR_SIZE * i);
1324                         last = true;
1325                 }
1326                 offset = eeprom->offset + (I40E_NVM_SECTOR_SIZE * i),
1327                 ret_val = i40e_aq_read_nvm(hw, 0x0, offset, len,
1328                                 (u8 *)eeprom_buff + (I40E_NVM_SECTOR_SIZE * i),
1329                                 last, NULL);
1330                 if (ret_val && hw->aq.asq_last_status == I40E_AQ_RC_EPERM) {
1331                         dev_info(&pf->pdev->dev,
1332                                  "read NVM failed, invalid offset 0x%x\n",
1333                                  offset);
1334                         break;
1335                 } else if (ret_val &&
1336                            hw->aq.asq_last_status == I40E_AQ_RC_EACCES) {
1337                         dev_info(&pf->pdev->dev,
1338                                  "read NVM failed, access, offset 0x%x\n",
1339                                  offset);
1340                         break;
1341                 } else if (ret_val) {
1342                         dev_info(&pf->pdev->dev,
1343                                  "read NVM failed offset %d err=%d status=0x%x\n",
1344                                  offset, ret_val, hw->aq.asq_last_status);
1345                         break;
1346                 }
1347         }
1348
1349         i40e_release_nvm(hw);
1350         memcpy(bytes, (u8 *)eeprom_buff, eeprom->len);
1351 free_buff:
1352         kfree(eeprom_buff);
1353         return ret_val;
1354 }
1355
1356 static int i40e_get_eeprom_len(struct net_device *netdev)
1357 {
1358         struct i40e_netdev_priv *np = netdev_priv(netdev);
1359         struct i40e_hw *hw = &np->vsi->back->hw;
1360         u32 val;
1361
1362 #define X722_EEPROM_SCOPE_LIMIT 0x5B9FFF
1363         if (hw->mac.type == I40E_MAC_X722) {
1364                 val = X722_EEPROM_SCOPE_LIMIT + 1;
1365                 return val;
1366         }
1367         val = (rd32(hw, I40E_GLPCI_LBARCTRL)
1368                 & I40E_GLPCI_LBARCTRL_FL_SIZE_MASK)
1369                 >> I40E_GLPCI_LBARCTRL_FL_SIZE_SHIFT;
1370         /* register returns value in power of 2, 64Kbyte chunks. */
1371         val = (64 * 1024) * BIT(val);
1372         return val;
1373 }
1374
1375 static int i40e_set_eeprom(struct net_device *netdev,
1376                            struct ethtool_eeprom *eeprom, u8 *bytes)
1377 {
1378         struct i40e_netdev_priv *np = netdev_priv(netdev);
1379         struct i40e_hw *hw = &np->vsi->back->hw;
1380         struct i40e_pf *pf = np->vsi->back;
1381         struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom;
1382         int ret_val = 0;
1383         int errno = 0;
1384         u32 magic;
1385
1386         /* normal ethtool set_eeprom is not supported */
1387         magic = hw->vendor_id | (hw->device_id << 16);
1388         if (eeprom->magic == magic)
1389                 errno = -EOPNOTSUPP;
1390         /* check for NVMUpdate access method */
1391         else if (!eeprom->magic || (eeprom->magic >> 16) != hw->device_id)
1392                 errno = -EINVAL;
1393         else if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||
1394                  test_bit(__I40E_RESET_INTR_RECEIVED, pf->state))
1395                 errno = -EBUSY;
1396         else
1397                 ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno);
1398
1399         if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM))
1400                 dev_info(&pf->pdev->dev,
1401                          "NVMUpdate write failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n",
1402                          ret_val, hw->aq.asq_last_status, errno,
1403                          (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK),
1404                          cmd->offset, cmd->data_size);
1405
1406         return errno;
1407 }
1408
1409 static void i40e_get_drvinfo(struct net_device *netdev,
1410                              struct ethtool_drvinfo *drvinfo)
1411 {
1412         struct i40e_netdev_priv *np = netdev_priv(netdev);
1413         struct i40e_vsi *vsi = np->vsi;
1414         struct i40e_pf *pf = vsi->back;
1415
1416         strlcpy(drvinfo->driver, i40e_driver_name, sizeof(drvinfo->driver));
1417         strlcpy(drvinfo->version, i40e_driver_version_str,
1418                 sizeof(drvinfo->version));
1419         strlcpy(drvinfo->fw_version, i40e_nvm_version_str(&pf->hw),
1420                 sizeof(drvinfo->fw_version));
1421         strlcpy(drvinfo->bus_info, pci_name(pf->pdev),
1422                 sizeof(drvinfo->bus_info));
1423         drvinfo->n_priv_flags = I40E_PRIV_FLAGS_STR_LEN;
1424         if (pf->hw.pf_id == 0)
1425                 drvinfo->n_priv_flags += I40E_GL_PRIV_FLAGS_STR_LEN;
1426 }
1427
1428 static void i40e_get_ringparam(struct net_device *netdev,
1429                                struct ethtool_ringparam *ring)
1430 {
1431         struct i40e_netdev_priv *np = netdev_priv(netdev);
1432         struct i40e_pf *pf = np->vsi->back;
1433         struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi];
1434
1435         ring->rx_max_pending = I40E_MAX_NUM_DESCRIPTORS;
1436         ring->tx_max_pending = I40E_MAX_NUM_DESCRIPTORS;
1437         ring->rx_mini_max_pending = 0;
1438         ring->rx_jumbo_max_pending = 0;
1439         ring->rx_pending = vsi->rx_rings[0]->count;
1440         ring->tx_pending = vsi->tx_rings[0]->count;
1441         ring->rx_mini_pending = 0;
1442         ring->rx_jumbo_pending = 0;
1443 }
1444
1445 static bool i40e_active_tx_ring_index(struct i40e_vsi *vsi, u16 index)
1446 {
1447         if (i40e_enabled_xdp_vsi(vsi)) {
1448                 return index < vsi->num_queue_pairs ||
1449                         (index >= vsi->alloc_queue_pairs &&
1450                          index < vsi->alloc_queue_pairs + vsi->num_queue_pairs);
1451         }
1452
1453         return index < vsi->num_queue_pairs;
1454 }
1455
1456 static int i40e_set_ringparam(struct net_device *netdev,
1457                               struct ethtool_ringparam *ring)
1458 {
1459         struct i40e_ring *tx_rings = NULL, *rx_rings = NULL;
1460         struct i40e_netdev_priv *np = netdev_priv(netdev);
1461         struct i40e_hw *hw = &np->vsi->back->hw;
1462         struct i40e_vsi *vsi = np->vsi;
1463         struct i40e_pf *pf = vsi->back;
1464         u32 new_rx_count, new_tx_count;
1465         u16 tx_alloc_queue_pairs;
1466         int timeout = 50;
1467         int i, err = 0;
1468
1469         if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
1470                 return -EINVAL;
1471
1472         if (ring->tx_pending > I40E_MAX_NUM_DESCRIPTORS ||
1473             ring->tx_pending < I40E_MIN_NUM_DESCRIPTORS ||
1474             ring->rx_pending > I40E_MAX_NUM_DESCRIPTORS ||
1475             ring->rx_pending < I40E_MIN_NUM_DESCRIPTORS) {
1476                 netdev_info(netdev,
1477                             "Descriptors requested (Tx: %d / Rx: %d) out of range [%d-%d]\n",
1478                             ring->tx_pending, ring->rx_pending,
1479                             I40E_MIN_NUM_DESCRIPTORS, I40E_MAX_NUM_DESCRIPTORS);
1480                 return -EINVAL;
1481         }
1482
1483         new_tx_count = ALIGN(ring->tx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE);
1484         new_rx_count = ALIGN(ring->rx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE);
1485
1486         /* if nothing to do return success */
1487         if ((new_tx_count == vsi->tx_rings[0]->count) &&
1488             (new_rx_count == vsi->rx_rings[0]->count))
1489                 return 0;
1490
1491         while (test_and_set_bit(__I40E_CONFIG_BUSY, pf->state)) {
1492                 timeout--;
1493                 if (!timeout)
1494                         return -EBUSY;
1495                 usleep_range(1000, 2000);
1496         }
1497
1498         if (!netif_running(vsi->netdev)) {
1499                 /* simple case - set for the next time the netdev is started */
1500                 for (i = 0; i < vsi->num_queue_pairs; i++) {
1501                         vsi->tx_rings[i]->count = new_tx_count;
1502                         vsi->rx_rings[i]->count = new_rx_count;
1503                         if (i40e_enabled_xdp_vsi(vsi))
1504                                 vsi->xdp_rings[i]->count = new_tx_count;
1505                 }
1506                 goto done;
1507         }
1508
1509         /* We can't just free everything and then setup again,
1510          * because the ISRs in MSI-X mode get passed pointers
1511          * to the Tx and Rx ring structs.
1512          */
1513
1514         /* alloc updated Tx and XDP Tx resources */
1515         tx_alloc_queue_pairs = vsi->alloc_queue_pairs *
1516                                (i40e_enabled_xdp_vsi(vsi) ? 2 : 1);
1517         if (new_tx_count != vsi->tx_rings[0]->count) {
1518                 netdev_info(netdev,
1519                             "Changing Tx descriptor count from %d to %d.\n",
1520                             vsi->tx_rings[0]->count, new_tx_count);
1521                 tx_rings = kcalloc(tx_alloc_queue_pairs,
1522                                    sizeof(struct i40e_ring), GFP_KERNEL);
1523                 if (!tx_rings) {
1524                         err = -ENOMEM;
1525                         goto done;
1526                 }
1527
1528                 for (i = 0; i < tx_alloc_queue_pairs; i++) {
1529                         if (!i40e_active_tx_ring_index(vsi, i))
1530                                 continue;
1531
1532                         tx_rings[i] = *vsi->tx_rings[i];
1533                         tx_rings[i].count = new_tx_count;
1534                         /* the desc and bi pointers will be reallocated in the
1535                          * setup call
1536                          */
1537                         tx_rings[i].desc = NULL;
1538                         tx_rings[i].rx_bi = NULL;
1539                         err = i40e_setup_tx_descriptors(&tx_rings[i]);
1540                         if (err) {
1541                                 while (i) {
1542                                         i--;
1543                                         if (!i40e_active_tx_ring_index(vsi, i))
1544                                                 continue;
1545                                         i40e_free_tx_resources(&tx_rings[i]);
1546                                 }
1547                                 kfree(tx_rings);
1548                                 tx_rings = NULL;
1549
1550                                 goto done;
1551                         }
1552                 }
1553         }
1554
1555         /* alloc updated Rx resources */
1556         if (new_rx_count != vsi->rx_rings[0]->count) {
1557                 netdev_info(netdev,
1558                             "Changing Rx descriptor count from %d to %d\n",
1559                             vsi->rx_rings[0]->count, new_rx_count);
1560                 rx_rings = kcalloc(vsi->alloc_queue_pairs,
1561                                    sizeof(struct i40e_ring), GFP_KERNEL);
1562                 if (!rx_rings) {
1563                         err = -ENOMEM;
1564                         goto free_tx;
1565                 }
1566
1567                 for (i = 0; i < vsi->num_queue_pairs; i++) {
1568                         struct i40e_ring *ring;
1569                         u16 unused;
1570
1571                         /* clone ring and setup updated count */
1572                         rx_rings[i] = *vsi->rx_rings[i];
1573                         rx_rings[i].count = new_rx_count;
1574                         /* the desc and bi pointers will be reallocated in the
1575                          * setup call
1576                          */
1577                         rx_rings[i].desc = NULL;
1578                         rx_rings[i].rx_bi = NULL;
1579                         /* Clear cloned XDP RX-queue info before setup call */
1580                         memset(&rx_rings[i].xdp_rxq, 0, sizeof(rx_rings[i].xdp_rxq));
1581                         /* this is to allow wr32 to have something to write to
1582                          * during early allocation of Rx buffers
1583                          */
1584                         rx_rings[i].tail = hw->hw_addr + I40E_PRTGEN_STATUS;
1585                         err = i40e_setup_rx_descriptors(&rx_rings[i]);
1586                         if (err)
1587                                 goto rx_unwind;
1588
1589                         /* now allocate the Rx buffers to make sure the OS
1590                          * has enough memory, any failure here means abort
1591                          */
1592                         ring = &rx_rings[i];
1593                         unused = I40E_DESC_UNUSED(ring);
1594                         err = i40e_alloc_rx_buffers(ring, unused);
1595 rx_unwind:
1596                         if (err) {
1597                                 do {
1598                                         i40e_free_rx_resources(&rx_rings[i]);
1599                                 } while (i--);
1600                                 kfree(rx_rings);
1601                                 rx_rings = NULL;
1602
1603                                 goto free_tx;
1604                         }
1605                 }
1606         }
1607
1608         /* Bring interface down, copy in the new ring info,
1609          * then restore the interface
1610          */
1611         i40e_down(vsi);
1612
1613         if (tx_rings) {
1614                 for (i = 0; i < tx_alloc_queue_pairs; i++) {
1615                         if (i40e_active_tx_ring_index(vsi, i)) {
1616                                 i40e_free_tx_resources(vsi->tx_rings[i]);
1617                                 *vsi->tx_rings[i] = tx_rings[i];
1618                         }
1619                 }
1620                 kfree(tx_rings);
1621                 tx_rings = NULL;
1622         }
1623
1624         if (rx_rings) {
1625                 for (i = 0; i < vsi->num_queue_pairs; i++) {
1626                         i40e_free_rx_resources(vsi->rx_rings[i]);
1627                         /* get the real tail offset */
1628                         rx_rings[i].tail = vsi->rx_rings[i]->tail;
1629                         /* this is to fake out the allocation routine
1630                          * into thinking it has to realloc everything
1631                          * but the recycling logic will let us re-use
1632                          * the buffers allocated above
1633                          */
1634                         rx_rings[i].next_to_use = 0;
1635                         rx_rings[i].next_to_clean = 0;
1636                         rx_rings[i].next_to_alloc = 0;
1637                         /* do a struct copy */
1638                         *vsi->rx_rings[i] = rx_rings[i];
1639                 }
1640                 kfree(rx_rings);
1641                 rx_rings = NULL;
1642         }
1643
1644         i40e_up(vsi);
1645
1646 free_tx:
1647         /* error cleanup if the Rx allocations failed after getting Tx */
1648         if (tx_rings) {
1649                 for (i = 0; i < tx_alloc_queue_pairs; i++) {
1650                         if (i40e_active_tx_ring_index(vsi, i))
1651                                 i40e_free_tx_resources(vsi->tx_rings[i]);
1652                 }
1653                 kfree(tx_rings);
1654                 tx_rings = NULL;
1655         }
1656
1657 done:
1658         clear_bit(__I40E_CONFIG_BUSY, pf->state);
1659
1660         return err;
1661 }
1662
1663 /**
1664  * i40e_get_stats_count - return the stats count for a device
1665  * @netdev: the netdev to return the count for
1666  *
1667  * Returns the total number of statistics for this netdev. Note that even
1668  * though this is a function, it is required that the count for a specific
1669  * netdev must never change. Basing the count on static values such as the
1670  * maximum number of queues or the device type is ok. However, the API for
1671  * obtaining stats is *not* safe against changes based on non-static
1672  * values such as the *current* number of queues, or runtime flags.
1673  *
1674  * If a statistic is not always enabled, return it as part of the count
1675  * anyways, always return its string, and report its value as zero.
1676  **/
1677 static int i40e_get_stats_count(struct net_device *netdev)
1678 {
1679         struct i40e_netdev_priv *np = netdev_priv(netdev);
1680         struct i40e_vsi *vsi = np->vsi;
1681         struct i40e_pf *pf = vsi->back;
1682
1683         if (vsi == pf->vsi[pf->lan_vsi] && pf->hw.partition_id == 1)
1684                 return I40E_PF_STATS_LEN(netdev) + I40E_VEB_STATS_TOTAL;
1685         else
1686                 return I40E_VSI_STATS_LEN(netdev);
1687 }
1688
1689 static int i40e_get_sset_count(struct net_device *netdev, int sset)
1690 {
1691         struct i40e_netdev_priv *np = netdev_priv(netdev);
1692         struct i40e_vsi *vsi = np->vsi;
1693         struct i40e_pf *pf = vsi->back;
1694
1695         switch (sset) {
1696         case ETH_SS_TEST:
1697                 return I40E_TEST_LEN;
1698         case ETH_SS_STATS:
1699                 return i40e_get_stats_count(netdev);
1700         case ETH_SS_PRIV_FLAGS:
1701                 return I40E_PRIV_FLAGS_STR_LEN +
1702                         (pf->hw.pf_id == 0 ? I40E_GL_PRIV_FLAGS_STR_LEN : 0);
1703         default:
1704                 return -EOPNOTSUPP;
1705         }
1706 }
1707
1708 /**
1709  * i40e_get_ethtool_stats - copy stat values into supplied buffer
1710  * @netdev: the netdev to collect stats for
1711  * @stats: ethtool stats command structure
1712  * @data: ethtool supplied buffer
1713  *
1714  * Copy the stats values for this netdev into the buffer. Expects data to be
1715  * pre-allocated to the size returned by i40e_get_stats_count.. Note that all
1716  * statistics must be copied in a static order, and the count must not change
1717  * for a given netdev. See i40e_get_stats_count for more details.
1718  *
1719  * If a statistic is not currently valid (such as a disabled queue), this
1720  * function reports its value as zero.
1721  **/
1722 static void i40e_get_ethtool_stats(struct net_device *netdev,
1723                                    struct ethtool_stats *stats, u64 *data)
1724 {
1725         struct i40e_netdev_priv *np = netdev_priv(netdev);
1726         struct i40e_ring *tx_ring, *rx_ring;
1727         struct i40e_vsi *vsi = np->vsi;
1728         struct i40e_pf *pf = vsi->back;
1729         unsigned int j;
1730         char *p;
1731         struct rtnl_link_stats64 *net_stats = i40e_get_vsi_stats_struct(vsi);
1732         unsigned int start;
1733
1734         i40e_update_stats(vsi);
1735
1736         for (j = 0; j < I40E_NETDEV_STATS_LEN; j++) {
1737                 p = (char *)net_stats + i40e_gstrings_net_stats[j].stat_offset;
1738                 *(data++) = (i40e_gstrings_net_stats[j].sizeof_stat ==
1739                         sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1740         }
1741         for (j = 0; j < I40E_MISC_STATS_LEN; j++) {
1742                 p = (char *)vsi + i40e_gstrings_misc_stats[j].stat_offset;
1743                 *(data++) = (i40e_gstrings_misc_stats[j].sizeof_stat ==
1744                             sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1745         }
1746         rcu_read_lock();
1747         for (j = 0; j < I40E_MAX_NUM_QUEUES(netdev) ; j++) {
1748                 tx_ring = READ_ONCE(vsi->tx_rings[j]);
1749
1750                 if (!tx_ring) {
1751                         /* Bump the stat counter to skip these stats, and make
1752                          * sure the memory is zero'd
1753                          */
1754                         *(data++) = 0;
1755                         *(data++) = 0;
1756                         *(data++) = 0;
1757                         *(data++) = 0;
1758                         continue;
1759                 }
1760
1761                 /* process Tx ring statistics */
1762                 do {
1763                         start = u64_stats_fetch_begin_irq(&tx_ring->syncp);
1764                         data[0] = tx_ring->stats.packets;
1765                         data[1] = tx_ring->stats.bytes;
1766                 } while (u64_stats_fetch_retry_irq(&tx_ring->syncp, start));
1767                 data += 2;
1768
1769                 /* Rx ring is the 2nd half of the queue pair */
1770                 rx_ring = &tx_ring[1];
1771                 do {
1772                         start = u64_stats_fetch_begin_irq(&rx_ring->syncp);
1773                         data[0] = rx_ring->stats.packets;
1774                         data[1] = rx_ring->stats.bytes;
1775                 } while (u64_stats_fetch_retry_irq(&rx_ring->syncp, start));
1776                 data += 2;
1777         }
1778         rcu_read_unlock();
1779         if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1)
1780                 return;
1781
1782         if ((pf->lan_veb != I40E_NO_VEB) &&
1783             (pf->flags & I40E_FLAG_VEB_STATS_ENABLED)) {
1784                 struct i40e_veb *veb = pf->veb[pf->lan_veb];
1785
1786                 for (j = 0; j < I40E_VEB_STATS_LEN; j++) {
1787                         p = (char *)veb;
1788                         p += i40e_gstrings_veb_stats[j].stat_offset;
1789                         *(data++) = (i40e_gstrings_veb_stats[j].sizeof_stat ==
1790                                      sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1791                 }
1792                 for (j = 0; j < I40E_MAX_TRAFFIC_CLASS; j++) {
1793                         *(data++) = veb->tc_stats.tc_tx_packets[j];
1794                         *(data++) = veb->tc_stats.tc_tx_bytes[j];
1795                         *(data++) = veb->tc_stats.tc_rx_packets[j];
1796                         *(data++) = veb->tc_stats.tc_rx_bytes[j];
1797                 }
1798         } else {
1799                 data += I40E_VEB_STATS_TOTAL;
1800         }
1801         for (j = 0; j < I40E_GLOBAL_STATS_LEN; j++) {
1802                 p = (char *)pf + i40e_gstrings_stats[j].stat_offset;
1803                 *(data++) = (i40e_gstrings_stats[j].sizeof_stat ==
1804                              sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1805         }
1806         for (j = 0; j < I40E_MAX_USER_PRIORITY; j++) {
1807                 *(data++) = pf->stats.priority_xon_tx[j];
1808                 *(data++) = pf->stats.priority_xoff_tx[j];
1809         }
1810         for (j = 0; j < I40E_MAX_USER_PRIORITY; j++) {
1811                 *(data++) = pf->stats.priority_xon_rx[j];
1812                 *(data++) = pf->stats.priority_xoff_rx[j];
1813         }
1814         for (j = 0; j < I40E_MAX_USER_PRIORITY; j++)
1815                 *(data++) = pf->stats.priority_xon_2_xoff[j];
1816 }
1817
1818 /**
1819  * i40e_get_stat_strings - copy stat strings into supplied buffer
1820  * @netdev: the netdev to collect strings for
1821  * @data: supplied buffer to copy strings into
1822  *
1823  * Copy the strings related to stats for this netdev. Expects data to be
1824  * pre-allocated with the size reported by i40e_get_stats_count. Note that the
1825  * strings must be copied in a static order and the total count must not
1826  * change for a given netdev. See i40e_get_stats_count for more details.
1827  **/
1828 static void i40e_get_stat_strings(struct net_device *netdev, u8 *data)
1829 {
1830         struct i40e_netdev_priv *np = netdev_priv(netdev);
1831         struct i40e_vsi *vsi = np->vsi;
1832         struct i40e_pf *pf = vsi->back;
1833         unsigned int i;
1834         u8 *p = data;
1835
1836         for (i = 0; i < I40E_NETDEV_STATS_LEN; i++) {
1837                 snprintf(data, ETH_GSTRING_LEN, "%s",
1838                          i40e_gstrings_net_stats[i].stat_string);
1839                 data += ETH_GSTRING_LEN;
1840         }
1841         for (i = 0; i < I40E_MISC_STATS_LEN; i++) {
1842                 snprintf(data, ETH_GSTRING_LEN, "%s",
1843                          i40e_gstrings_misc_stats[i].stat_string);
1844                 data += ETH_GSTRING_LEN;
1845         }
1846         for (i = 0; i < I40E_MAX_NUM_QUEUES(netdev); i++) {
1847                 snprintf(data, ETH_GSTRING_LEN, "tx-%u.tx_packets", i);
1848                 data += ETH_GSTRING_LEN;
1849                 snprintf(data, ETH_GSTRING_LEN, "tx-%u.tx_bytes", i);
1850                 data += ETH_GSTRING_LEN;
1851                 snprintf(data, ETH_GSTRING_LEN, "rx-%u.rx_packets", i);
1852                 data += ETH_GSTRING_LEN;
1853                 snprintf(data, ETH_GSTRING_LEN, "rx-%u.rx_bytes", i);
1854                 data += ETH_GSTRING_LEN;
1855         }
1856         if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1)
1857                 return;
1858
1859         for (i = 0; i < I40E_VEB_STATS_LEN; i++) {
1860                 snprintf(data, ETH_GSTRING_LEN, "%s",
1861                          i40e_gstrings_veb_stats[i].stat_string);
1862                 data += ETH_GSTRING_LEN;
1863         }
1864         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1865                 snprintf(data, ETH_GSTRING_LEN,
1866                          "veb.tc_%u_tx_packets", i);
1867                 data += ETH_GSTRING_LEN;
1868                 snprintf(data, ETH_GSTRING_LEN,
1869                          "veb.tc_%u_tx_bytes", i);
1870                 data += ETH_GSTRING_LEN;
1871                 snprintf(data, ETH_GSTRING_LEN,
1872                          "veb.tc_%u_rx_packets", i);
1873                 data += ETH_GSTRING_LEN;
1874                 snprintf(data, ETH_GSTRING_LEN,
1875                          "veb.tc_%u_rx_bytes", i);
1876                 data += ETH_GSTRING_LEN;
1877         }
1878
1879         for (i = 0; i < I40E_GLOBAL_STATS_LEN; i++) {
1880                 snprintf(data, ETH_GSTRING_LEN, "%s",
1881                          i40e_gstrings_stats[i].stat_string);
1882                 data += ETH_GSTRING_LEN;
1883         }
1884         for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) {
1885                 snprintf(data, ETH_GSTRING_LEN,
1886                          "port.tx_priority_%u_xon", i);
1887                 data += ETH_GSTRING_LEN;
1888                 snprintf(data, ETH_GSTRING_LEN,
1889                          "port.tx_priority_%u_xoff", i);
1890                 data += ETH_GSTRING_LEN;
1891         }
1892         for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) {
1893                 snprintf(data, ETH_GSTRING_LEN,
1894                          "port.rx_priority_%u_xon", i);
1895                 data += ETH_GSTRING_LEN;
1896                 snprintf(data, ETH_GSTRING_LEN,
1897                          "port.rx_priority_%u_xoff", i);
1898                 data += ETH_GSTRING_LEN;
1899         }
1900         for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) {
1901                 snprintf(data, ETH_GSTRING_LEN,
1902                          "port.rx_priority_%u_xon_2_xoff", i);
1903                 data += ETH_GSTRING_LEN;
1904         }
1905
1906         WARN_ONCE(p - data != i40e_get_stats_count(netdev) * ETH_GSTRING_LEN,
1907                   "stat strings count mismatch!");
1908 }
1909
1910 static void i40e_get_priv_flag_strings(struct net_device *netdev, u8 *data)
1911 {
1912         struct i40e_netdev_priv *np = netdev_priv(netdev);
1913         struct i40e_vsi *vsi = np->vsi;
1914         struct i40e_pf *pf = vsi->back;
1915         char *p = (char *)data;
1916         unsigned int i;
1917
1918         for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) {
1919                 snprintf(p, ETH_GSTRING_LEN, "%s",
1920                          i40e_gstrings_priv_flags[i].flag_string);
1921                 p += ETH_GSTRING_LEN;
1922         }
1923         if (pf->hw.pf_id != 0)
1924                 return;
1925         for (i = 0; i < I40E_GL_PRIV_FLAGS_STR_LEN; i++) {
1926                 snprintf(p, ETH_GSTRING_LEN, "%s",
1927                          i40e_gl_gstrings_priv_flags[i].flag_string);
1928                 p += ETH_GSTRING_LEN;
1929         }
1930 }
1931
1932 static void i40e_get_strings(struct net_device *netdev, u32 stringset,
1933                              u8 *data)
1934 {
1935         switch (stringset) {
1936         case ETH_SS_TEST:
1937                 memcpy(data, i40e_gstrings_test,
1938                        I40E_TEST_LEN * ETH_GSTRING_LEN);
1939                 break;
1940         case ETH_SS_STATS:
1941                 i40e_get_stat_strings(netdev, data);
1942                 break;
1943         case ETH_SS_PRIV_FLAGS:
1944                 i40e_get_priv_flag_strings(netdev, data);
1945                 break;
1946         default:
1947                 break;
1948         }
1949 }
1950
1951 static int i40e_get_ts_info(struct net_device *dev,
1952                             struct ethtool_ts_info *info)
1953 {
1954         struct i40e_pf *pf = i40e_netdev_to_pf(dev);
1955
1956         /* only report HW timestamping if PTP is enabled */
1957         if (!(pf->flags & I40E_FLAG_PTP))
1958                 return ethtool_op_get_ts_info(dev, info);
1959
1960         info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE |
1961                                 SOF_TIMESTAMPING_RX_SOFTWARE |
1962                                 SOF_TIMESTAMPING_SOFTWARE |
1963                                 SOF_TIMESTAMPING_TX_HARDWARE |
1964                                 SOF_TIMESTAMPING_RX_HARDWARE |
1965                                 SOF_TIMESTAMPING_RAW_HARDWARE;
1966
1967         if (pf->ptp_clock)
1968                 info->phc_index = ptp_clock_index(pf->ptp_clock);
1969         else
1970                 info->phc_index = -1;
1971
1972         info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON);
1973
1974         info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) |
1975                            BIT(HWTSTAMP_FILTER_PTP_V2_L2_EVENT) |
1976                            BIT(HWTSTAMP_FILTER_PTP_V2_L2_SYNC) |
1977                            BIT(HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ);
1978
1979         if (pf->hw_features & I40E_HW_PTP_L4_CAPABLE)
1980                 info->rx_filters |= BIT(HWTSTAMP_FILTER_PTP_V1_L4_SYNC) |
1981                                     BIT(HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) |
1982                                     BIT(HWTSTAMP_FILTER_PTP_V2_EVENT) |
1983                                     BIT(HWTSTAMP_FILTER_PTP_V2_L4_EVENT) |
1984                                     BIT(HWTSTAMP_FILTER_PTP_V2_SYNC) |
1985                                     BIT(HWTSTAMP_FILTER_PTP_V2_L4_SYNC) |
1986                                     BIT(HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) |
1987                                     BIT(HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ);
1988
1989         return 0;
1990 }
1991
1992 static int i40e_link_test(struct net_device *netdev, u64 *data)
1993 {
1994         struct i40e_netdev_priv *np = netdev_priv(netdev);
1995         struct i40e_pf *pf = np->vsi->back;
1996         i40e_status status;
1997         bool link_up = false;
1998
1999         netif_info(pf, hw, netdev, "link test\n");
2000         status = i40e_get_link_status(&pf->hw, &link_up);
2001         if (status) {
2002                 netif_err(pf, drv, netdev, "link query timed out, please retry test\n");
2003                 *data = 1;
2004                 return *data;
2005         }
2006
2007         if (link_up)
2008                 *data = 0;
2009         else
2010                 *data = 1;
2011
2012         return *data;
2013 }
2014
2015 static int i40e_reg_test(struct net_device *netdev, u64 *data)
2016 {
2017         struct i40e_netdev_priv *np = netdev_priv(netdev);
2018         struct i40e_pf *pf = np->vsi->back;
2019
2020         netif_info(pf, hw, netdev, "register test\n");
2021         *data = i40e_diag_reg_test(&pf->hw);
2022
2023         return *data;
2024 }
2025
2026 static int i40e_eeprom_test(struct net_device *netdev, u64 *data)
2027 {
2028         struct i40e_netdev_priv *np = netdev_priv(netdev);
2029         struct i40e_pf *pf = np->vsi->back;
2030
2031         netif_info(pf, hw, netdev, "eeprom test\n");
2032         *data = i40e_diag_eeprom_test(&pf->hw);
2033
2034         /* forcebly clear the NVM Update state machine */
2035         pf->hw.nvmupd_state = I40E_NVMUPD_STATE_INIT;
2036
2037         return *data;
2038 }
2039
2040 static int i40e_intr_test(struct net_device *netdev, u64 *data)
2041 {
2042         struct i40e_netdev_priv *np = netdev_priv(netdev);
2043         struct i40e_pf *pf = np->vsi->back;
2044         u16 swc_old = pf->sw_int_count;
2045
2046         netif_info(pf, hw, netdev, "interrupt test\n");
2047         wr32(&pf->hw, I40E_PFINT_DYN_CTL0,
2048              (I40E_PFINT_DYN_CTL0_INTENA_MASK |
2049               I40E_PFINT_DYN_CTL0_SWINT_TRIG_MASK |
2050               I40E_PFINT_DYN_CTL0_ITR_INDX_MASK |
2051               I40E_PFINT_DYN_CTL0_SW_ITR_INDX_ENA_MASK |
2052               I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK));
2053         usleep_range(1000, 2000);
2054         *data = (swc_old == pf->sw_int_count);
2055
2056         return *data;
2057 }
2058
2059 static inline bool i40e_active_vfs(struct i40e_pf *pf)
2060 {
2061         struct i40e_vf *vfs = pf->vf;
2062         int i;
2063
2064         for (i = 0; i < pf->num_alloc_vfs; i++)
2065                 if (test_bit(I40E_VF_STATE_ACTIVE, &vfs[i].vf_states))
2066                         return true;
2067         return false;
2068 }
2069
2070 static inline bool i40e_active_vmdqs(struct i40e_pf *pf)
2071 {
2072         return !!i40e_find_vsi_by_type(pf, I40E_VSI_VMDQ2);
2073 }
2074
2075 static void i40e_diag_test(struct net_device *netdev,
2076                            struct ethtool_test *eth_test, u64 *data)
2077 {
2078         struct i40e_netdev_priv *np = netdev_priv(netdev);
2079         bool if_running = netif_running(netdev);
2080         struct i40e_pf *pf = np->vsi->back;
2081
2082         if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
2083                 /* Offline tests */
2084                 netif_info(pf, drv, netdev, "offline testing starting\n");
2085
2086                 set_bit(__I40E_TESTING, pf->state);
2087
2088                 if (i40e_active_vfs(pf) || i40e_active_vmdqs(pf)) {
2089                         dev_warn(&pf->pdev->dev,
2090                                  "Please take active VFs and Netqueues offline and restart the adapter before running NIC diagnostics\n");
2091                         data[I40E_ETH_TEST_REG]         = 1;
2092                         data[I40E_ETH_TEST_EEPROM]      = 1;
2093                         data[I40E_ETH_TEST_INTR]        = 1;
2094                         data[I40E_ETH_TEST_LINK]        = 1;
2095                         eth_test->flags |= ETH_TEST_FL_FAILED;
2096                         clear_bit(__I40E_TESTING, pf->state);
2097                         goto skip_ol_tests;
2098                 }
2099
2100                 /* If the device is online then take it offline */
2101                 if (if_running)
2102                         /* indicate we're in test mode */
2103                         i40e_close(netdev);
2104                 else
2105                         /* This reset does not affect link - if it is
2106                          * changed to a type of reset that does affect
2107                          * link then the following link test would have
2108                          * to be moved to before the reset
2109                          */
2110                         i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true);
2111
2112                 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK]))
2113                         eth_test->flags |= ETH_TEST_FL_FAILED;
2114
2115                 if (i40e_eeprom_test(netdev, &data[I40E_ETH_TEST_EEPROM]))
2116                         eth_test->flags |= ETH_TEST_FL_FAILED;
2117
2118                 if (i40e_intr_test(netdev, &data[I40E_ETH_TEST_INTR]))
2119                         eth_test->flags |= ETH_TEST_FL_FAILED;
2120
2121                 /* run reg test last, a reset is required after it */
2122                 if (i40e_reg_test(netdev, &data[I40E_ETH_TEST_REG]))
2123                         eth_test->flags |= ETH_TEST_FL_FAILED;
2124
2125                 clear_bit(__I40E_TESTING, pf->state);
2126                 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true);
2127
2128                 if (if_running)
2129                         i40e_open(netdev);
2130         } else {
2131                 /* Online tests */
2132                 netif_info(pf, drv, netdev, "online testing starting\n");
2133
2134                 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK]))
2135                         eth_test->flags |= ETH_TEST_FL_FAILED;
2136
2137                 /* Offline only tests, not run in online; pass by default */
2138                 data[I40E_ETH_TEST_REG] = 0;
2139                 data[I40E_ETH_TEST_EEPROM] = 0;
2140                 data[I40E_ETH_TEST_INTR] = 0;
2141         }
2142
2143 skip_ol_tests:
2144
2145         netif_info(pf, drv, netdev, "testing finished\n");
2146 }
2147
2148 static void i40e_get_wol(struct net_device *netdev,
2149                          struct ethtool_wolinfo *wol)
2150 {
2151         struct i40e_netdev_priv *np = netdev_priv(netdev);
2152         struct i40e_pf *pf = np->vsi->back;
2153         struct i40e_hw *hw = &pf->hw;
2154         u16 wol_nvm_bits;
2155
2156         /* NVM bit on means WoL disabled for the port */
2157         i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits);
2158         if ((BIT(hw->port) & wol_nvm_bits) || (hw->partition_id != 1)) {
2159                 wol->supported = 0;
2160                 wol->wolopts = 0;
2161         } else {
2162                 wol->supported = WAKE_MAGIC;
2163                 wol->wolopts = (pf->wol_en ? WAKE_MAGIC : 0);
2164         }
2165 }
2166
2167 /**
2168  * i40e_set_wol - set the WakeOnLAN configuration
2169  * @netdev: the netdev in question
2170  * @wol: the ethtool WoL setting data
2171  **/
2172 static int i40e_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
2173 {
2174         struct i40e_netdev_priv *np = netdev_priv(netdev);
2175         struct i40e_pf *pf = np->vsi->back;
2176         struct i40e_vsi *vsi = np->vsi;
2177         struct i40e_hw *hw = &pf->hw;
2178         u16 wol_nvm_bits;
2179
2180         /* WoL not supported if this isn't the controlling PF on the port */
2181         if (hw->partition_id != 1) {
2182                 i40e_partition_setting_complaint(pf);
2183                 return -EOPNOTSUPP;
2184         }
2185
2186         if (vsi != pf->vsi[pf->lan_vsi])
2187                 return -EOPNOTSUPP;
2188
2189         /* NVM bit on means WoL disabled for the port */
2190         i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits);
2191         if (BIT(hw->port) & wol_nvm_bits)
2192                 return -EOPNOTSUPP;
2193
2194         /* only magic packet is supported */
2195         if (wol->wolopts && (wol->wolopts != WAKE_MAGIC))
2196                 return -EOPNOTSUPP;
2197
2198         /* is this a new value? */
2199         if (pf->wol_en != !!wol->wolopts) {
2200                 pf->wol_en = !!wol->wolopts;
2201                 device_set_wakeup_enable(&pf->pdev->dev, pf->wol_en);
2202         }
2203
2204         return 0;
2205 }
2206
2207 static int i40e_set_phys_id(struct net_device *netdev,
2208                             enum ethtool_phys_id_state state)
2209 {
2210         struct i40e_netdev_priv *np = netdev_priv(netdev);
2211         i40e_status ret = 0;
2212         struct i40e_pf *pf = np->vsi->back;
2213         struct i40e_hw *hw = &pf->hw;
2214         int blink_freq = 2;
2215         u16 temp_status;
2216
2217         switch (state) {
2218         case ETHTOOL_ID_ACTIVE:
2219                 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) {
2220                         pf->led_status = i40e_led_get(hw);
2221                 } else {
2222                         if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE))
2223                                 i40e_aq_set_phy_debug(hw, I40E_PHY_DEBUG_ALL,
2224                                                       NULL);
2225                         ret = i40e_led_get_phy(hw, &temp_status,
2226                                                &pf->phy_led_val);
2227                         pf->led_status = temp_status;
2228                 }
2229                 return blink_freq;
2230         case ETHTOOL_ID_ON:
2231                 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS))
2232                         i40e_led_set(hw, 0xf, false);
2233                 else
2234                         ret = i40e_led_set_phy(hw, true, pf->led_status, 0);
2235                 break;
2236         case ETHTOOL_ID_OFF:
2237                 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS))
2238                         i40e_led_set(hw, 0x0, false);
2239                 else
2240                         ret = i40e_led_set_phy(hw, false, pf->led_status, 0);
2241                 break;
2242         case ETHTOOL_ID_INACTIVE:
2243                 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) {
2244                         i40e_led_set(hw, pf->led_status, false);
2245                 } else {
2246                         ret = i40e_led_set_phy(hw, false, pf->led_status,
2247                                                (pf->phy_led_val |
2248                                                I40E_PHY_LED_MODE_ORIG));
2249                         if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE))
2250                                 i40e_aq_set_phy_debug(hw, 0, NULL);
2251                 }
2252                 break;
2253         default:
2254                 break;
2255         }
2256                 if (ret)
2257                         return -ENOENT;
2258                 else
2259                         return 0;
2260 }
2261
2262 /* NOTE: i40e hardware uses a conversion factor of 2 for Interrupt
2263  * Throttle Rate (ITR) ie. ITR(1) = 2us ITR(10) = 20 us, and also
2264  * 125us (8000 interrupts per second) == ITR(62)
2265  */
2266
2267 /**
2268  * __i40e_get_coalesce - get per-queue coalesce settings
2269  * @netdev: the netdev to check
2270  * @ec: ethtool coalesce data structure
2271  * @queue: which queue to pick
2272  *
2273  * Gets the per-queue settings for coalescence. Specifically Rx and Tx usecs
2274  * are per queue. If queue is <0 then we default to queue 0 as the
2275  * representative value.
2276  **/
2277 static int __i40e_get_coalesce(struct net_device *netdev,
2278                                struct ethtool_coalesce *ec,
2279                                int queue)
2280 {
2281         struct i40e_netdev_priv *np = netdev_priv(netdev);
2282         struct i40e_ring *rx_ring, *tx_ring;
2283         struct i40e_vsi *vsi = np->vsi;
2284
2285         ec->tx_max_coalesced_frames_irq = vsi->work_limit;
2286         ec->rx_max_coalesced_frames_irq = vsi->work_limit;
2287
2288         /* rx and tx usecs has per queue value. If user doesn't specify the
2289          * queue, return queue 0's value to represent.
2290          */
2291         if (queue < 0)
2292                 queue = 0;
2293         else if (queue >= vsi->num_queue_pairs)
2294                 return -EINVAL;
2295
2296         rx_ring = vsi->rx_rings[queue];
2297         tx_ring = vsi->tx_rings[queue];
2298
2299         if (ITR_IS_DYNAMIC(rx_ring->itr_setting))
2300                 ec->use_adaptive_rx_coalesce = 1;
2301
2302         if (ITR_IS_DYNAMIC(tx_ring->itr_setting))
2303                 ec->use_adaptive_tx_coalesce = 1;
2304
2305         ec->rx_coalesce_usecs = rx_ring->itr_setting & ~I40E_ITR_DYNAMIC;
2306         ec->tx_coalesce_usecs = tx_ring->itr_setting & ~I40E_ITR_DYNAMIC;
2307
2308         /* we use the _usecs_high to store/set the interrupt rate limit
2309          * that the hardware supports, that almost but not quite
2310          * fits the original intent of the ethtool variable,
2311          * the rx_coalesce_usecs_high limits total interrupts
2312          * per second from both tx/rx sources.
2313          */
2314         ec->rx_coalesce_usecs_high = vsi->int_rate_limit;
2315         ec->tx_coalesce_usecs_high = vsi->int_rate_limit;
2316
2317         return 0;
2318 }
2319
2320 /**
2321  * i40e_get_coalesce - get a netdev's coalesce settings
2322  * @netdev: the netdev to check
2323  * @ec: ethtool coalesce data structure
2324  *
2325  * Gets the coalesce settings for a particular netdev. Note that if user has
2326  * modified per-queue settings, this only guarantees to represent queue 0. See
2327  * __i40e_get_coalesce for more details.
2328  **/
2329 static int i40e_get_coalesce(struct net_device *netdev,
2330                              struct ethtool_coalesce *ec)
2331 {
2332         return __i40e_get_coalesce(netdev, ec, -1);
2333 }
2334
2335 /**
2336  * i40e_get_per_queue_coalesce - gets coalesce settings for particular queue
2337  * @netdev: netdev structure
2338  * @ec: ethtool's coalesce settings
2339  * @queue: the particular queue to read
2340  *
2341  * Will read a specific queue's coalesce settings
2342  **/
2343 static int i40e_get_per_queue_coalesce(struct net_device *netdev, u32 queue,
2344                                        struct ethtool_coalesce *ec)
2345 {
2346         return __i40e_get_coalesce(netdev, ec, queue);
2347 }
2348
2349 /**
2350  * i40e_set_itr_per_queue - set ITR values for specific queue
2351  * @vsi: the VSI to set values for
2352  * @ec: coalesce settings from ethtool
2353  * @queue: the queue to modify
2354  *
2355  * Change the ITR settings for a specific queue.
2356  **/
2357 static void i40e_set_itr_per_queue(struct i40e_vsi *vsi,
2358                                    struct ethtool_coalesce *ec,
2359                                    int queue)
2360 {
2361         struct i40e_ring *rx_ring = vsi->rx_rings[queue];
2362         struct i40e_ring *tx_ring = vsi->tx_rings[queue];
2363         struct i40e_pf *pf = vsi->back;
2364         struct i40e_hw *hw = &pf->hw;
2365         struct i40e_q_vector *q_vector;
2366         u16 intrl;
2367
2368         intrl = i40e_intrl_usec_to_reg(vsi->int_rate_limit);
2369
2370         rx_ring->itr_setting = ITR_REG_ALIGN(ec->rx_coalesce_usecs);
2371         tx_ring->itr_setting = ITR_REG_ALIGN(ec->tx_coalesce_usecs);
2372
2373         if (ec->use_adaptive_rx_coalesce)
2374                 rx_ring->itr_setting |= I40E_ITR_DYNAMIC;
2375         else
2376                 rx_ring->itr_setting &= ~I40E_ITR_DYNAMIC;
2377
2378         if (ec->use_adaptive_tx_coalesce)
2379                 tx_ring->itr_setting |= I40E_ITR_DYNAMIC;
2380         else
2381                 tx_ring->itr_setting &= ~I40E_ITR_DYNAMIC;
2382
2383         q_vector = rx_ring->q_vector;
2384         q_vector->rx.target_itr = ITR_TO_REG(rx_ring->itr_setting);
2385
2386         q_vector = tx_ring->q_vector;
2387         q_vector->tx.target_itr = ITR_TO_REG(tx_ring->itr_setting);
2388
2389         /* The interrupt handler itself will take care of programming
2390          * the Tx and Rx ITR values based on the values we have entered
2391          * into the q_vector, no need to write the values now.
2392          */
2393
2394         wr32(hw, I40E_PFINT_RATEN(q_vector->reg_idx), intrl);
2395         i40e_flush(hw);
2396 }
2397
2398 /**
2399  * __i40e_set_coalesce - set coalesce settings for particular queue
2400  * @netdev: the netdev to change
2401  * @ec: ethtool coalesce settings
2402  * @queue: the queue to change
2403  *
2404  * Sets the coalesce settings for a particular queue.
2405  **/
2406 static int __i40e_set_coalesce(struct net_device *netdev,
2407                                struct ethtool_coalesce *ec,
2408                                int queue)
2409 {
2410         struct i40e_netdev_priv *np = netdev_priv(netdev);
2411         u16 intrl_reg, cur_rx_itr, cur_tx_itr;
2412         struct i40e_vsi *vsi = np->vsi;
2413         struct i40e_pf *pf = vsi->back;
2414         int i;
2415
2416         if (ec->tx_max_coalesced_frames_irq || ec->rx_max_coalesced_frames_irq)
2417                 vsi->work_limit = ec->tx_max_coalesced_frames_irq;
2418
2419         if (queue < 0) {
2420                 cur_rx_itr = vsi->rx_rings[0]->itr_setting;
2421                 cur_tx_itr = vsi->tx_rings[0]->itr_setting;
2422         } else if (queue < vsi->num_queue_pairs) {
2423                 cur_rx_itr = vsi->rx_rings[queue]->itr_setting;
2424                 cur_tx_itr = vsi->tx_rings[queue]->itr_setting;
2425         } else {
2426                 netif_info(pf, drv, netdev, "Invalid queue value, queue range is 0 - %d\n",
2427                            vsi->num_queue_pairs - 1);
2428                 return -EINVAL;
2429         }
2430
2431         cur_tx_itr &= ~I40E_ITR_DYNAMIC;
2432         cur_rx_itr &= ~I40E_ITR_DYNAMIC;
2433
2434         /* tx_coalesce_usecs_high is ignored, use rx-usecs-high instead */
2435         if (ec->tx_coalesce_usecs_high != vsi->int_rate_limit) {
2436                 netif_info(pf, drv, netdev, "tx-usecs-high is not used, please program rx-usecs-high\n");
2437                 return -EINVAL;
2438         }
2439
2440         if (ec->rx_coalesce_usecs_high > INTRL_REG_TO_USEC(I40E_MAX_INTRL)) {
2441                 netif_info(pf, drv, netdev, "Invalid value, rx-usecs-high range is 0-%lu\n",
2442                            INTRL_REG_TO_USEC(I40E_MAX_INTRL));
2443                 return -EINVAL;
2444         }
2445
2446         if (ec->rx_coalesce_usecs != cur_rx_itr &&
2447             ec->use_adaptive_rx_coalesce) {
2448                 netif_info(pf, drv, netdev, "RX interrupt moderation cannot be changed if adaptive-rx is enabled.\n");
2449                 return -EINVAL;
2450         }
2451
2452         if (ec->rx_coalesce_usecs > I40E_MAX_ITR) {
2453                 netif_info(pf, drv, netdev, "Invalid value, rx-usecs range is 0-8160\n");
2454                 return -EINVAL;
2455         }
2456
2457         if (ec->tx_coalesce_usecs != cur_tx_itr &&
2458             ec->use_adaptive_tx_coalesce) {
2459                 netif_info(pf, drv, netdev, "TX interrupt moderation cannot be changed if adaptive-tx is enabled.\n");
2460                 return -EINVAL;
2461         }
2462
2463         if (ec->tx_coalesce_usecs > I40E_MAX_ITR) {
2464                 netif_info(pf, drv, netdev, "Invalid value, tx-usecs range is 0-8160\n");
2465                 return -EINVAL;
2466         }
2467
2468         if (ec->use_adaptive_rx_coalesce && !cur_rx_itr)
2469                 ec->rx_coalesce_usecs = I40E_MIN_ITR;
2470
2471         if (ec->use_adaptive_tx_coalesce && !cur_tx_itr)
2472                 ec->tx_coalesce_usecs = I40E_MIN_ITR;
2473
2474         intrl_reg = i40e_intrl_usec_to_reg(ec->rx_coalesce_usecs_high);
2475         vsi->int_rate_limit = INTRL_REG_TO_USEC(intrl_reg);
2476         if (vsi->int_rate_limit != ec->rx_coalesce_usecs_high) {
2477                 netif_info(pf, drv, netdev, "Interrupt rate limit rounded down to %d\n",
2478                            vsi->int_rate_limit);
2479         }
2480
2481         /* rx and tx usecs has per queue value. If user doesn't specify the
2482          * queue, apply to all queues.
2483          */
2484         if (queue < 0) {
2485                 for (i = 0; i < vsi->num_queue_pairs; i++)
2486                         i40e_set_itr_per_queue(vsi, ec, i);
2487         } else {
2488                 i40e_set_itr_per_queue(vsi, ec, queue);
2489         }
2490
2491         return 0;
2492 }
2493
2494 /**
2495  * i40e_set_coalesce - set coalesce settings for every queue on the netdev
2496  * @netdev: the netdev to change
2497  * @ec: ethtool coalesce settings
2498  *
2499  * This will set each queue to the same coalesce settings.
2500  **/
2501 static int i40e_set_coalesce(struct net_device *netdev,
2502                              struct ethtool_coalesce *ec)
2503 {
2504         return __i40e_set_coalesce(netdev, ec, -1);
2505 }
2506
2507 /**
2508  * i40e_set_per_queue_coalesce - set specific queue's coalesce settings
2509  * @netdev: the netdev to change
2510  * @ec: ethtool's coalesce settings
2511  * @queue: the queue to change
2512  *
2513  * Sets the specified queue's coalesce settings.
2514  **/
2515 static int i40e_set_per_queue_coalesce(struct net_device *netdev, u32 queue,
2516                                        struct ethtool_coalesce *ec)
2517 {
2518         return __i40e_set_coalesce(netdev, ec, queue);
2519 }
2520
2521 /**
2522  * i40e_get_rss_hash_opts - Get RSS hash Input Set for each flow type
2523  * @pf: pointer to the physical function struct
2524  * @cmd: ethtool rxnfc command
2525  *
2526  * Returns Success if the flow is supported, else Invalid Input.
2527  **/
2528 static int i40e_get_rss_hash_opts(struct i40e_pf *pf, struct ethtool_rxnfc *cmd)
2529 {
2530         struct i40e_hw *hw = &pf->hw;
2531         u8 flow_pctype = 0;
2532         u64 i_set = 0;
2533
2534         cmd->data = 0;
2535
2536         switch (cmd->flow_type) {
2537         case TCP_V4_FLOW:
2538                 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_TCP;
2539                 break;
2540         case UDP_V4_FLOW:
2541                 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_UDP;
2542                 break;
2543         case TCP_V6_FLOW:
2544                 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_TCP;
2545                 break;
2546         case UDP_V6_FLOW:
2547                 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_UDP;
2548                 break;
2549         case SCTP_V4_FLOW:
2550         case AH_ESP_V4_FLOW:
2551         case AH_V4_FLOW:
2552         case ESP_V4_FLOW:
2553         case IPV4_FLOW:
2554         case SCTP_V6_FLOW:
2555         case AH_ESP_V6_FLOW:
2556         case AH_V6_FLOW:
2557         case ESP_V6_FLOW:
2558         case IPV6_FLOW:
2559                 /* Default is src/dest for IP, no matter the L4 hashing */
2560                 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
2561                 break;
2562         default:
2563                 return -EINVAL;
2564         }
2565
2566         /* Read flow based hash input set register */
2567         if (flow_pctype) {
2568                 i_set = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0,
2569                                               flow_pctype)) |
2570                         ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1,
2571                                                flow_pctype)) << 32);
2572         }
2573
2574         /* Process bits of hash input set */
2575         if (i_set) {
2576                 if (i_set & I40E_L4_SRC_MASK)
2577                         cmd->data |= RXH_L4_B_0_1;
2578                 if (i_set & I40E_L4_DST_MASK)
2579                         cmd->data |= RXH_L4_B_2_3;
2580
2581                 if (cmd->flow_type == TCP_V4_FLOW ||
2582                     cmd->flow_type == UDP_V4_FLOW) {
2583                         if (i_set & I40E_L3_SRC_MASK)
2584                                 cmd->data |= RXH_IP_SRC;
2585                         if (i_set & I40E_L3_DST_MASK)
2586                                 cmd->data |= RXH_IP_DST;
2587                 } else if (cmd->flow_type == TCP_V6_FLOW ||
2588                           cmd->flow_type == UDP_V6_FLOW) {
2589                         if (i_set & I40E_L3_V6_SRC_MASK)
2590                                 cmd->data |= RXH_IP_SRC;
2591                         if (i_set & I40E_L3_V6_DST_MASK)
2592                                 cmd->data |= RXH_IP_DST;
2593                 }
2594         }
2595
2596         return 0;
2597 }
2598
2599 /**
2600  * i40e_check_mask - Check whether a mask field is set
2601  * @mask: the full mask value
2602  * @field: mask of the field to check
2603  *
2604  * If the given mask is fully set, return positive value. If the mask for the
2605  * field is fully unset, return zero. Otherwise return a negative error code.
2606  **/
2607 static int i40e_check_mask(u64 mask, u64 field)
2608 {
2609         u64 value = mask & field;
2610
2611         if (value == field)
2612                 return 1;
2613         else if (!value)
2614                 return 0;
2615         else
2616                 return -1;
2617 }
2618
2619 /**
2620  * i40e_parse_rx_flow_user_data - Deconstruct user-defined data
2621  * @fsp: pointer to rx flow specification
2622  * @data: pointer to userdef data structure for storage
2623  *
2624  * Read the user-defined data and deconstruct the value into a structure. No
2625  * other code should read the user-defined data, so as to ensure that every
2626  * place consistently reads the value correctly.
2627  *
2628  * The user-defined field is a 64bit Big Endian format value, which we
2629  * deconstruct by reading bits or bit fields from it. Single bit flags shall
2630  * be defined starting from the highest bits, while small bit field values
2631  * shall be defined starting from the lowest bits.
2632  *
2633  * Returns 0 if the data is valid, and non-zero if the userdef data is invalid
2634  * and the filter should be rejected. The data structure will always be
2635  * modified even if FLOW_EXT is not set.
2636  *
2637  **/
2638 static int i40e_parse_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp,
2639                                         struct i40e_rx_flow_userdef *data)
2640 {
2641         u64 value, mask;
2642         int valid;
2643
2644         /* Zero memory first so it's always consistent. */
2645         memset(data, 0, sizeof(*data));
2646
2647         if (!(fsp->flow_type & FLOW_EXT))
2648                 return 0;
2649
2650         value = be64_to_cpu(*((__be64 *)fsp->h_ext.data));
2651         mask = be64_to_cpu(*((__be64 *)fsp->m_ext.data));
2652
2653 #define I40E_USERDEF_FLEX_WORD          GENMASK_ULL(15, 0)
2654 #define I40E_USERDEF_FLEX_OFFSET        GENMASK_ULL(31, 16)
2655 #define I40E_USERDEF_FLEX_FILTER        GENMASK_ULL(31, 0)
2656
2657         valid = i40e_check_mask(mask, I40E_USERDEF_FLEX_FILTER);
2658         if (valid < 0) {
2659                 return -EINVAL;
2660         } else if (valid) {
2661                 data->flex_word = value & I40E_USERDEF_FLEX_WORD;
2662                 data->flex_offset =
2663                         (value & I40E_USERDEF_FLEX_OFFSET) >> 16;
2664                 data->flex_filter = true;
2665         }
2666
2667         return 0;
2668 }
2669
2670 /**
2671  * i40e_fill_rx_flow_user_data - Fill in user-defined data field
2672  * @fsp: pointer to rx_flow specification
2673  * @data: pointer to return userdef data
2674  *
2675  * Reads the userdef data structure and properly fills in the user defined
2676  * fields of the rx_flow_spec.
2677  **/
2678 static void i40e_fill_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp,
2679                                         struct i40e_rx_flow_userdef *data)
2680 {
2681         u64 value = 0, mask = 0;
2682
2683         if (data->flex_filter) {
2684                 value |= data->flex_word;
2685                 value |= (u64)data->flex_offset << 16;
2686                 mask |= I40E_USERDEF_FLEX_FILTER;
2687         }
2688
2689         if (value || mask)
2690                 fsp->flow_type |= FLOW_EXT;
2691
2692         *((__be64 *)fsp->h_ext.data) = cpu_to_be64(value);
2693         *((__be64 *)fsp->m_ext.data) = cpu_to_be64(mask);
2694 }
2695
2696 /**
2697  * i40e_get_ethtool_fdir_all - Populates the rule count of a command
2698  * @pf: Pointer to the physical function struct
2699  * @cmd: The command to get or set Rx flow classification rules
2700  * @rule_locs: Array of used rule locations
2701  *
2702  * This function populates both the total and actual rule count of
2703  * the ethtool flow classification command
2704  *
2705  * Returns 0 on success or -EMSGSIZE if entry not found
2706  **/
2707 static int i40e_get_ethtool_fdir_all(struct i40e_pf *pf,
2708                                      struct ethtool_rxnfc *cmd,
2709                                      u32 *rule_locs)
2710 {
2711         struct i40e_fdir_filter *rule;
2712         struct hlist_node *node2;
2713         int cnt = 0;
2714
2715         /* report total rule count */
2716         cmd->data = i40e_get_fd_cnt_all(pf);
2717
2718         hlist_for_each_entry_safe(rule, node2,
2719                                   &pf->fdir_filter_list, fdir_node) {
2720                 if (cnt == cmd->rule_cnt)
2721                         return -EMSGSIZE;
2722
2723                 rule_locs[cnt] = rule->fd_id;
2724                 cnt++;
2725         }
2726
2727         cmd->rule_cnt = cnt;
2728
2729         return 0;
2730 }
2731
2732 /**
2733  * i40e_get_ethtool_fdir_entry - Look up a filter based on Rx flow
2734  * @pf: Pointer to the physical function struct
2735  * @cmd: The command to get or set Rx flow classification rules
2736  *
2737  * This function looks up a filter based on the Rx flow classification
2738  * command and fills the flow spec info for it if found
2739  *
2740  * Returns 0 on success or -EINVAL if filter not found
2741  **/
2742 static int i40e_get_ethtool_fdir_entry(struct i40e_pf *pf,
2743                                        struct ethtool_rxnfc *cmd)
2744 {
2745         struct ethtool_rx_flow_spec *fsp =
2746                         (struct ethtool_rx_flow_spec *)&cmd->fs;
2747         struct i40e_rx_flow_userdef userdef = {0};
2748         struct i40e_fdir_filter *rule = NULL;
2749         struct hlist_node *node2;
2750         u64 input_set;
2751         u16 index;
2752
2753         hlist_for_each_entry_safe(rule, node2,
2754                                   &pf->fdir_filter_list, fdir_node) {
2755                 if (fsp->location <= rule->fd_id)
2756                         break;
2757         }
2758
2759         if (!rule || fsp->location != rule->fd_id)
2760                 return -EINVAL;
2761
2762         fsp->flow_type = rule->flow_type;
2763         if (fsp->flow_type == IP_USER_FLOW) {
2764                 fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4;
2765                 fsp->h_u.usr_ip4_spec.proto = 0;
2766                 fsp->m_u.usr_ip4_spec.proto = 0;
2767         }
2768
2769         /* Reverse the src and dest notion, since the HW views them from
2770          * Tx perspective where as the user expects it from Rx filter view.
2771          */
2772         fsp->h_u.tcp_ip4_spec.psrc = rule->dst_port;
2773         fsp->h_u.tcp_ip4_spec.pdst = rule->src_port;
2774         fsp->h_u.tcp_ip4_spec.ip4src = rule->dst_ip;
2775         fsp->h_u.tcp_ip4_spec.ip4dst = rule->src_ip;
2776
2777         switch (rule->flow_type) {
2778         case SCTP_V4_FLOW:
2779                 index = I40E_FILTER_PCTYPE_NONF_IPV4_SCTP;
2780                 break;
2781         case TCP_V4_FLOW:
2782                 index = I40E_FILTER_PCTYPE_NONF_IPV4_TCP;
2783                 break;
2784         case UDP_V4_FLOW:
2785                 index = I40E_FILTER_PCTYPE_NONF_IPV4_UDP;
2786                 break;
2787         case IP_USER_FLOW:
2788                 index = I40E_FILTER_PCTYPE_NONF_IPV4_OTHER;
2789                 break;
2790         default:
2791                 /* If we have stored a filter with a flow type not listed here
2792                  * it is almost certainly a driver bug. WARN(), and then
2793                  * assign the input_set as if all fields are enabled to avoid
2794                  * reading unassigned memory.
2795                  */
2796                 WARN(1, "Missing input set index for flow_type %d\n",
2797                      rule->flow_type);
2798                 input_set = 0xFFFFFFFFFFFFFFFFULL;
2799                 goto no_input_set;
2800         }
2801
2802         input_set = i40e_read_fd_input_set(pf, index);
2803
2804 no_input_set:
2805         if (input_set & I40E_L3_SRC_MASK)
2806                 fsp->m_u.tcp_ip4_spec.ip4src = htonl(0xFFFFFFFF);
2807
2808         if (input_set & I40E_L3_DST_MASK)
2809                 fsp->m_u.tcp_ip4_spec.ip4dst = htonl(0xFFFFFFFF);
2810
2811         if (input_set & I40E_L4_SRC_MASK)
2812                 fsp->m_u.tcp_ip4_spec.psrc = htons(0xFFFF);
2813
2814         if (input_set & I40E_L4_DST_MASK)
2815                 fsp->m_u.tcp_ip4_spec.pdst = htons(0xFFFF);
2816
2817         if (rule->dest_ctl == I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET)
2818                 fsp->ring_cookie = RX_CLS_FLOW_DISC;
2819         else
2820                 fsp->ring_cookie = rule->q_index;
2821
2822         if (rule->dest_vsi != pf->vsi[pf->lan_vsi]->id) {
2823                 struct i40e_vsi *vsi;
2824
2825                 vsi = i40e_find_vsi_from_id(pf, rule->dest_vsi);
2826                 if (vsi && vsi->type == I40E_VSI_SRIOV) {
2827                         /* VFs are zero-indexed by the driver, but ethtool
2828                          * expects them to be one-indexed, so add one here
2829                          */
2830                         u64 ring_vf = vsi->vf_id + 1;
2831
2832                         ring_vf <<= ETHTOOL_RX_FLOW_SPEC_RING_VF_OFF;
2833                         fsp->ring_cookie |= ring_vf;
2834                 }
2835         }
2836
2837         if (rule->flex_filter) {
2838                 userdef.flex_filter = true;
2839                 userdef.flex_word = be16_to_cpu(rule->flex_word);
2840                 userdef.flex_offset = rule->flex_offset;
2841         }
2842
2843         i40e_fill_rx_flow_user_data(fsp, &userdef);
2844
2845         return 0;
2846 }
2847
2848 /**
2849  * i40e_get_rxnfc - command to get RX flow classification rules
2850  * @netdev: network interface device structure
2851  * @cmd: ethtool rxnfc command
2852  * @rule_locs: pointer to store rule data
2853  *
2854  * Returns Success if the command is supported.
2855  **/
2856 static int i40e_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd,
2857                           u32 *rule_locs)
2858 {
2859         struct i40e_netdev_priv *np = netdev_priv(netdev);
2860         struct i40e_vsi *vsi = np->vsi;
2861         struct i40e_pf *pf = vsi->back;
2862         int ret = -EOPNOTSUPP;
2863
2864         switch (cmd->cmd) {
2865         case ETHTOOL_GRXRINGS:
2866                 cmd->data = vsi->rss_size;
2867                 ret = 0;
2868                 break;
2869         case ETHTOOL_GRXFH:
2870                 ret = i40e_get_rss_hash_opts(pf, cmd);
2871                 break;
2872         case ETHTOOL_GRXCLSRLCNT:
2873                 cmd->rule_cnt = pf->fdir_pf_active_filters;
2874                 /* report total rule count */
2875                 cmd->data = i40e_get_fd_cnt_all(pf);
2876                 ret = 0;
2877                 break;
2878         case ETHTOOL_GRXCLSRULE:
2879                 ret = i40e_get_ethtool_fdir_entry(pf, cmd);
2880                 break;
2881         case ETHTOOL_GRXCLSRLALL:
2882                 ret = i40e_get_ethtool_fdir_all(pf, cmd, rule_locs);
2883                 break;
2884         default:
2885                 break;
2886         }
2887
2888         return ret;
2889 }
2890
2891 /**
2892  * i40e_get_rss_hash_bits - Read RSS Hash bits from register
2893  * @nfc: pointer to user request
2894  * @i_setc: bits currently set
2895  *
2896  * Returns value of bits to be set per user request
2897  **/
2898 static u64 i40e_get_rss_hash_bits(struct ethtool_rxnfc *nfc, u64 i_setc)
2899 {
2900         u64 i_set = i_setc;
2901         u64 src_l3 = 0, dst_l3 = 0;
2902
2903         if (nfc->data & RXH_L4_B_0_1)
2904                 i_set |= I40E_L4_SRC_MASK;
2905         else
2906                 i_set &= ~I40E_L4_SRC_MASK;
2907         if (nfc->data & RXH_L4_B_2_3)
2908                 i_set |= I40E_L4_DST_MASK;
2909         else
2910                 i_set &= ~I40E_L4_DST_MASK;
2911
2912         if (nfc->flow_type == TCP_V6_FLOW || nfc->flow_type == UDP_V6_FLOW) {
2913                 src_l3 = I40E_L3_V6_SRC_MASK;
2914                 dst_l3 = I40E_L3_V6_DST_MASK;
2915         } else if (nfc->flow_type == TCP_V4_FLOW ||
2916                   nfc->flow_type == UDP_V4_FLOW) {
2917                 src_l3 = I40E_L3_SRC_MASK;
2918                 dst_l3 = I40E_L3_DST_MASK;
2919         } else {
2920                 /* Any other flow type are not supported here */
2921                 return i_set;
2922         }
2923
2924         if (nfc->data & RXH_IP_SRC)
2925                 i_set |= src_l3;
2926         else
2927                 i_set &= ~src_l3;
2928         if (nfc->data & RXH_IP_DST)
2929                 i_set |= dst_l3;
2930         else
2931                 i_set &= ~dst_l3;
2932
2933         return i_set;
2934 }
2935
2936 /**
2937  * i40e_set_rss_hash_opt - Enable/Disable flow types for RSS hash
2938  * @pf: pointer to the physical function struct
2939  * @nfc: ethtool rxnfc command
2940  *
2941  * Returns Success if the flow input set is supported.
2942  **/
2943 static int i40e_set_rss_hash_opt(struct i40e_pf *pf, struct ethtool_rxnfc *nfc)
2944 {
2945         struct i40e_hw *hw = &pf->hw;
2946         u64 hena = (u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(0)) |
2947                    ((u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(1)) << 32);
2948         u8 flow_pctype = 0;
2949         u64 i_set, i_setc;
2950
2951         if (pf->flags & I40E_FLAG_MFP_ENABLED) {
2952                 dev_err(&pf->pdev->dev,
2953                         "Change of RSS hash input set is not supported when MFP mode is enabled\n");
2954                 return -EOPNOTSUPP;
2955         }
2956
2957         /* RSS does not support anything other than hashing
2958          * to queues on src and dst IPs and ports
2959          */
2960         if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST |
2961                           RXH_L4_B_0_1 | RXH_L4_B_2_3))
2962                 return -EINVAL;
2963
2964         switch (nfc->flow_type) {
2965         case TCP_V4_FLOW:
2966                 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_TCP;
2967                 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE)
2968                         hena |=
2969                           BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK);
2970                 break;
2971         case TCP_V6_FLOW:
2972                 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_TCP;
2973                 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE)
2974                         hena |=
2975                           BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK);
2976                 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE)
2977                         hena |=
2978                           BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_TCP_SYN_NO_ACK);
2979                 break;
2980         case UDP_V4_FLOW:
2981                 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_UDP;
2982                 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE)
2983                         hena |=
2984                           BIT_ULL(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV4_UDP) |
2985                           BIT_ULL(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV4_UDP);
2986
2987                 hena |= BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4);
2988                 break;
2989         case UDP_V6_FLOW:
2990                 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_UDP;
2991                 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE)
2992                         hena |=
2993                           BIT_ULL(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV6_UDP) |
2994                           BIT_ULL(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV6_UDP);
2995
2996                 hena |= BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6);
2997                 break;
2998         case AH_ESP_V4_FLOW:
2999         case AH_V4_FLOW:
3000         case ESP_V4_FLOW:
3001         case SCTP_V4_FLOW:
3002                 if ((nfc->data & RXH_L4_B_0_1) ||
3003                     (nfc->data & RXH_L4_B_2_3))
3004                         return -EINVAL;
3005                 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER);
3006                 break;
3007         case AH_ESP_V6_FLOW:
3008         case AH_V6_FLOW:
3009         case ESP_V6_FLOW:
3010         case SCTP_V6_FLOW:
3011                 if ((nfc->data & RXH_L4_B_0_1) ||
3012                     (nfc->data & RXH_L4_B_2_3))
3013                         return -EINVAL;
3014                 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER);
3015                 break;
3016         case IPV4_FLOW:
3017                 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER) |
3018                         BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4);
3019                 break;
3020         case IPV6_FLOW:
3021                 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER) |
3022                         BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6);
3023                 break;
3024         default:
3025                 return -EINVAL;
3026         }
3027
3028         if (flow_pctype) {
3029                 i_setc = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0,
3030                                                flow_pctype)) |
3031                         ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1,
3032                                                flow_pctype)) << 32);
3033                 i_set = i40e_get_rss_hash_bits(nfc, i_setc);
3034                 i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, flow_pctype),
3035                                   (u32)i_set);
3036                 i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, flow_pctype),
3037                                   (u32)(i_set >> 32));
3038                 hena |= BIT_ULL(flow_pctype);
3039         }
3040
3041         i40e_write_rx_ctl(hw, I40E_PFQF_HENA(0), (u32)hena);
3042         i40e_write_rx_ctl(hw, I40E_PFQF_HENA(1), (u32)(hena >> 32));
3043         i40e_flush(hw);
3044
3045         return 0;
3046 }
3047
3048 /**
3049  * i40e_update_ethtool_fdir_entry - Updates the fdir filter entry
3050  * @vsi: Pointer to the targeted VSI
3051  * @input: The filter to update or NULL to indicate deletion
3052  * @sw_idx: Software index to the filter
3053  * @cmd: The command to get or set Rx flow classification rules
3054  *
3055  * This function updates (or deletes) a Flow Director entry from
3056  * the hlist of the corresponding PF
3057  *
3058  * Returns 0 on success
3059  **/
3060 static int i40e_update_ethtool_fdir_entry(struct i40e_vsi *vsi,
3061                                           struct i40e_fdir_filter *input,
3062                                           u16 sw_idx,
3063                                           struct ethtool_rxnfc *cmd)
3064 {
3065         struct i40e_fdir_filter *rule, *parent;
3066         struct i40e_pf *pf = vsi->back;
3067         struct hlist_node *node2;
3068         int err = -EINVAL;
3069
3070         parent = NULL;
3071         rule = NULL;
3072
3073         hlist_for_each_entry_safe(rule, node2,
3074                                   &pf->fdir_filter_list, fdir_node) {
3075                 /* hash found, or no matching entry */
3076                 if (rule->fd_id >= sw_idx)
3077                         break;
3078                 parent = rule;
3079         }
3080
3081         /* if there is an old rule occupying our place remove it */
3082         if (rule && (rule->fd_id == sw_idx)) {
3083                 /* Remove this rule, since we're either deleting it, or
3084                  * replacing it.
3085                  */
3086                 err = i40e_add_del_fdir(vsi, rule, false);
3087                 hlist_del(&rule->fdir_node);
3088                 kfree(rule);
3089                 pf->fdir_pf_active_filters--;
3090         }
3091
3092         /* If we weren't given an input, this is a delete, so just return the
3093          * error code indicating if there was an entry at the requested slot
3094          */
3095         if (!input)
3096                 return err;
3097
3098         /* Otherwise, install the new rule as requested */
3099         INIT_HLIST_NODE(&input->fdir_node);
3100
3101         /* add filter to the list */
3102         if (parent)
3103                 hlist_add_behind(&input->fdir_node, &parent->fdir_node);
3104         else
3105                 hlist_add_head(&input->fdir_node,
3106                                &pf->fdir_filter_list);
3107
3108         /* update counts */
3109         pf->fdir_pf_active_filters++;
3110
3111         return 0;
3112 }
3113
3114 /**
3115  * i40e_prune_flex_pit_list - Cleanup unused entries in FLX_PIT table
3116  * @pf: pointer to PF structure
3117  *
3118  * This function searches the list of filters and determines which FLX_PIT
3119  * entries are still required. It will prune any entries which are no longer
3120  * in use after the deletion.
3121  **/
3122 static void i40e_prune_flex_pit_list(struct i40e_pf *pf)
3123 {
3124         struct i40e_flex_pit *entry, *tmp;
3125         struct i40e_fdir_filter *rule;
3126
3127         /* First, we'll check the l3 table */
3128         list_for_each_entry_safe(entry, tmp, &pf->l3_flex_pit_list, list) {
3129                 bool found = false;
3130
3131                 hlist_for_each_entry(rule, &pf->fdir_filter_list, fdir_node) {
3132                         if (rule->flow_type != IP_USER_FLOW)
3133                                 continue;
3134                         if (rule->flex_filter &&
3135                             rule->flex_offset == entry->src_offset) {
3136                                 found = true;
3137                                 break;
3138                         }
3139                 }
3140
3141                 /* If we didn't find the filter, then we can prune this entry
3142                  * from the list.
3143                  */
3144                 if (!found) {
3145                         list_del(&entry->list);
3146                         kfree(entry);
3147                 }
3148         }
3149
3150         /* Followed by the L4 table */
3151         list_for_each_entry_safe(entry, tmp, &pf->l4_flex_pit_list, list) {
3152                 bool found = false;
3153
3154                 hlist_for_each_entry(rule, &pf->fdir_filter_list, fdir_node) {
3155                         /* Skip this filter if it's L3, since we already
3156                          * checked those in the above loop
3157                          */
3158                         if (rule->flow_type == IP_USER_FLOW)
3159                                 continue;
3160                         if (rule->flex_filter &&
3161                             rule->flex_offset == entry->src_offset) {
3162                                 found = true;
3163                                 break;
3164                         }
3165                 }
3166
3167                 /* If we didn't find the filter, then we can prune this entry
3168                  * from the list.
3169                  */
3170                 if (!found) {
3171                         list_del(&entry->list);
3172                         kfree(entry);
3173                 }
3174         }
3175 }
3176
3177 /**
3178  * i40e_del_fdir_entry - Deletes a Flow Director filter entry
3179  * @vsi: Pointer to the targeted VSI
3180  * @cmd: The command to get or set Rx flow classification rules
3181  *
3182  * The function removes a Flow Director filter entry from the
3183  * hlist of the corresponding PF
3184  *
3185  * Returns 0 on success
3186  */
3187 static int i40e_del_fdir_entry(struct i40e_vsi *vsi,
3188                                struct ethtool_rxnfc *cmd)
3189 {
3190         struct ethtool_rx_flow_spec *fsp =
3191                 (struct ethtool_rx_flow_spec *)&cmd->fs;
3192         struct i40e_pf *pf = vsi->back;
3193         int ret = 0;
3194
3195         if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||
3196             test_bit(__I40E_RESET_INTR_RECEIVED, pf->state))
3197                 return -EBUSY;
3198
3199         if (test_bit(__I40E_FD_FLUSH_REQUESTED, pf->state))
3200                 return -EBUSY;
3201
3202         ret = i40e_update_ethtool_fdir_entry(vsi, NULL, fsp->location, cmd);
3203
3204         i40e_prune_flex_pit_list(pf);
3205
3206         i40e_fdir_check_and_reenable(pf);
3207         return ret;
3208 }
3209
3210 /**
3211  * i40e_unused_pit_index - Find an unused PIT index for given list
3212  * @pf: the PF data structure
3213  *
3214  * Find the first unused flexible PIT index entry. We search both the L3 and
3215  * L4 flexible PIT lists so that the returned index is unique and unused by
3216  * either currently programmed L3 or L4 filters. We use a bit field as storage
3217  * to track which indexes are already used.
3218  **/
3219 static u8 i40e_unused_pit_index(struct i40e_pf *pf)
3220 {
3221         unsigned long available_index = 0xFF;
3222         struct i40e_flex_pit *entry;
3223
3224         /* We need to make sure that the new index isn't in use by either L3
3225          * or L4 filters so that IP_USER_FLOW filters can program both L3 and
3226          * L4 to use the same index.
3227          */
3228
3229         list_for_each_entry(entry, &pf->l4_flex_pit_list, list)
3230                 clear_bit(entry->pit_index, &available_index);
3231
3232         list_for_each_entry(entry, &pf->l3_flex_pit_list, list)
3233                 clear_bit(entry->pit_index, &available_index);
3234
3235         return find_first_bit(&available_index, 8);
3236 }
3237
3238 /**
3239  * i40e_find_flex_offset - Find an existing flex src_offset
3240  * @flex_pit_list: L3 or L4 flex PIT list
3241  * @src_offset: new src_offset to find
3242  *
3243  * Searches the flex_pit_list for an existing offset. If no offset is
3244  * currently programmed, then this will return an ERR_PTR if there is no space
3245  * to add a new offset, otherwise it returns NULL.
3246  **/
3247 static
3248 struct i40e_flex_pit *i40e_find_flex_offset(struct list_head *flex_pit_list,
3249                                             u16 src_offset)
3250 {
3251         struct i40e_flex_pit *entry;
3252         int size = 0;
3253
3254         /* Search for the src_offset first. If we find a matching entry
3255          * already programmed, we can simply re-use it.
3256          */
3257         list_for_each_entry(entry, flex_pit_list, list) {
3258                 size++;
3259                 if (entry->src_offset == src_offset)
3260                         return entry;
3261         }
3262
3263         /* If we haven't found an entry yet, then the provided src offset has
3264          * not yet been programmed. We will program the src offset later on,
3265          * but we need to indicate whether there is enough space to do so
3266          * here. We'll make use of ERR_PTR for this purpose.
3267          */
3268         if (size >= I40E_FLEX_PIT_TABLE_SIZE)
3269                 return ERR_PTR(-ENOSPC);
3270
3271         return NULL;
3272 }
3273
3274 /**
3275  * i40e_add_flex_offset - Add src_offset to flex PIT table list
3276  * @flex_pit_list: L3 or L4 flex PIT list
3277  * @src_offset: new src_offset to add
3278  * @pit_index: the PIT index to program
3279  *
3280  * This function programs the new src_offset to the list. It is expected that
3281  * i40e_find_flex_offset has already been tried and returned NULL, indicating
3282  * that this offset is not programmed, and that the list has enough space to
3283  * store another offset.
3284  *
3285  * Returns 0 on success, and negative value on error.
3286  **/
3287 static int i40e_add_flex_offset(struct list_head *flex_pit_list,
3288                                 u16 src_offset,
3289                                 u8 pit_index)
3290 {
3291         struct i40e_flex_pit *new_pit, *entry;
3292
3293         new_pit = kzalloc(sizeof(*entry), GFP_KERNEL);
3294         if (!new_pit)
3295                 return -ENOMEM;
3296
3297         new_pit->src_offset = src_offset;
3298         new_pit->pit_index = pit_index;
3299
3300         /* We need to insert this item such that the list is sorted by
3301          * src_offset in ascending order.
3302          */
3303         list_for_each_entry(entry, flex_pit_list, list) {
3304                 if (new_pit->src_offset < entry->src_offset) {
3305                         list_add_tail(&new_pit->list, &entry->list);
3306                         return 0;
3307                 }
3308
3309                 /* If we found an entry with our offset already programmed we
3310                  * can simply return here, after freeing the memory. However,
3311                  * if the pit_index does not match we need to report an error.
3312                  */
3313                 if (new_pit->src_offset == entry->src_offset) {
3314                         int err = 0;
3315
3316                         /* If the PIT index is not the same we can't re-use
3317                          * the entry, so we must report an error.
3318                          */
3319                         if (new_pit->pit_index != entry->pit_index)
3320                                 err = -EINVAL;
3321
3322                         kfree(new_pit);
3323                         return err;
3324                 }
3325         }
3326
3327         /* If we reached here, then we haven't yet added the item. This means
3328          * that we should add the item at the end of the list.
3329          */
3330         list_add_tail(&new_pit->list, flex_pit_list);
3331         return 0;
3332 }
3333
3334 /**
3335  * __i40e_reprogram_flex_pit - Re-program specific FLX_PIT table
3336  * @pf: Pointer to the PF structure
3337  * @flex_pit_list: list of flexible src offsets in use
3338  * @flex_pit_start: index to first entry for this section of the table
3339  *
3340  * In order to handle flexible data, the hardware uses a table of values
3341  * called the FLX_PIT table. This table is used to indicate which sections of
3342  * the input correspond to what PIT index values. Unfortunately, hardware is
3343  * very restrictive about programming this table. Entries must be ordered by
3344  * src_offset in ascending order, without duplicates. Additionally, unused
3345  * entries must be set to the unused index value, and must have valid size and
3346  * length according to the src_offset ordering.
3347  *
3348  * This function will reprogram the FLX_PIT register from a book-keeping
3349  * structure that we guarantee is already ordered correctly, and has no more
3350  * than 3 entries.
3351  *
3352  * To make things easier, we only support flexible values of one word length,
3353  * rather than allowing variable length flexible values.
3354  **/
3355 static void __i40e_reprogram_flex_pit(struct i40e_pf *pf,
3356                                       struct list_head *flex_pit_list,
3357                                       int flex_pit_start)
3358 {
3359         struct i40e_flex_pit *entry = NULL;
3360         u16 last_offset = 0;
3361         int i = 0, j = 0;
3362
3363         /* First, loop over the list of flex PIT entries, and reprogram the
3364          * registers.
3365          */
3366         list_for_each_entry(entry, flex_pit_list, list) {
3367                 /* We have to be careful when programming values for the
3368                  * largest SRC_OFFSET value. It is possible that adding
3369                  * additional empty values at the end would overflow the space
3370                  * for the SRC_OFFSET in the FLX_PIT register. To avoid this,
3371                  * we check here and add the empty values prior to adding the
3372                  * largest value.
3373                  *
3374                  * To determine this, we will use a loop from i+1 to 3, which
3375                  * will determine whether the unused entries would have valid
3376                  * SRC_OFFSET. Note that there cannot be extra entries past
3377                  * this value, because the only valid values would have been
3378                  * larger than I40E_MAX_FLEX_SRC_OFFSET, and thus would not
3379                  * have been added to the list in the first place.
3380                  */
3381                 for (j = i + 1; j < 3; j++) {
3382                         u16 offset = entry->src_offset + j;
3383                         int index = flex_pit_start + i;
3384                         u32 value = I40E_FLEX_PREP_VAL(I40E_FLEX_DEST_UNUSED,
3385                                                        1,
3386                                                        offset - 3);
3387
3388                         if (offset > I40E_MAX_FLEX_SRC_OFFSET) {
3389                                 i40e_write_rx_ctl(&pf->hw,
3390                                                   I40E_PRTQF_FLX_PIT(index),
3391                                                   value);
3392                                 i++;
3393                         }
3394                 }
3395
3396                 /* Now, we can program the actual value into the table */
3397                 i40e_write_rx_ctl(&pf->hw,
3398                                   I40E_PRTQF_FLX_PIT(flex_pit_start + i),
3399                                   I40E_FLEX_PREP_VAL(entry->pit_index + 50,
3400                                                      1,
3401                                                      entry->src_offset));
3402                 i++;
3403         }
3404
3405         /* In order to program the last entries in the table, we need to
3406          * determine the valid offset. If the list is empty, we'll just start
3407          * with 0. Otherwise, we'll start with the last item offset and add 1.
3408          * This ensures that all entries have valid sizes. If we don't do this
3409          * correctly, the hardware will disable flexible field parsing.
3410          */
3411         if (!list_empty(flex_pit_list))
3412                 last_offset = list_prev_entry(entry, list)->src_offset + 1;
3413
3414         for (; i < 3; i++, last_offset++) {
3415                 i40e_write_rx_ctl(&pf->hw,
3416                                   I40E_PRTQF_FLX_PIT(flex_pit_start + i),
3417                                   I40E_FLEX_PREP_VAL(I40E_FLEX_DEST_UNUSED,
3418                                                      1,
3419                                                      last_offset));
3420         }
3421 }
3422
3423 /**
3424  * i40e_reprogram_flex_pit - Reprogram all FLX_PIT tables after input set change
3425  * @pf: pointer to the PF structure
3426  *
3427  * This function reprograms both the L3 and L4 FLX_PIT tables. See the
3428  * internal helper function for implementation details.
3429  **/
3430 static void i40e_reprogram_flex_pit(struct i40e_pf *pf)
3431 {
3432         __i40e_reprogram_flex_pit(pf, &pf->l3_flex_pit_list,
3433                                   I40E_FLEX_PIT_IDX_START_L3);
3434
3435         __i40e_reprogram_flex_pit(pf, &pf->l4_flex_pit_list,
3436                                   I40E_FLEX_PIT_IDX_START_L4);
3437
3438         /* We also need to program the L3 and L4 GLQF ORT register */
3439         i40e_write_rx_ctl(&pf->hw,
3440                           I40E_GLQF_ORT(I40E_L3_GLQF_ORT_IDX),
3441                           I40E_ORT_PREP_VAL(I40E_FLEX_PIT_IDX_START_L3,
3442                                             3, 1));
3443
3444         i40e_write_rx_ctl(&pf->hw,
3445                           I40E_GLQF_ORT(I40E_L4_GLQF_ORT_IDX),
3446                           I40E_ORT_PREP_VAL(I40E_FLEX_PIT_IDX_START_L4,
3447                                             3, 1));
3448 }
3449
3450 /**
3451  * i40e_flow_str - Converts a flow_type into a human readable string
3452  * @fsp: the flow specification
3453  *
3454  * Currently only flow types we support are included here, and the string
3455  * value attempts to match what ethtool would use to configure this flow type.
3456  **/
3457 static const char *i40e_flow_str(struct ethtool_rx_flow_spec *fsp)
3458 {
3459         switch (fsp->flow_type & ~FLOW_EXT) {
3460         case TCP_V4_FLOW:
3461                 return "tcp4";
3462         case UDP_V4_FLOW:
3463                 return "udp4";
3464         case SCTP_V4_FLOW:
3465                 return "sctp4";
3466         case IP_USER_FLOW:
3467                 return "ip4";
3468         default:
3469                 return "unknown";
3470         }
3471 }
3472
3473 /**
3474  * i40e_pit_index_to_mask - Return the FLEX mask for a given PIT index
3475  * @pit_index: PIT index to convert
3476  *
3477  * Returns the mask for a given PIT index. Will return 0 if the pit_index is
3478  * of range.
3479  **/
3480 static u64 i40e_pit_index_to_mask(int pit_index)
3481 {
3482         switch (pit_index) {
3483         case 0:
3484                 return I40E_FLEX_50_MASK;
3485         case 1:
3486                 return I40E_FLEX_51_MASK;
3487         case 2:
3488                 return I40E_FLEX_52_MASK;
3489         case 3:
3490                 return I40E_FLEX_53_MASK;
3491         case 4:
3492                 return I40E_FLEX_54_MASK;
3493         case 5:
3494                 return I40E_FLEX_55_MASK;
3495         case 6:
3496                 return I40E_FLEX_56_MASK;
3497         case 7:
3498                 return I40E_FLEX_57_MASK;
3499         default:
3500                 return 0;
3501         }
3502 }
3503
3504 /**
3505  * i40e_print_input_set - Show changes between two input sets
3506  * @vsi: the vsi being configured
3507  * @old: the old input set
3508  * @new: the new input set
3509  *
3510  * Print the difference between old and new input sets by showing which series
3511  * of words are toggled on or off. Only displays the bits we actually support
3512  * changing.
3513  **/
3514 static void i40e_print_input_set(struct i40e_vsi *vsi, u64 old, u64 new)
3515 {
3516         struct i40e_pf *pf = vsi->back;
3517         bool old_value, new_value;
3518         int i;
3519
3520         old_value = !!(old & I40E_L3_SRC_MASK);
3521         new_value = !!(new & I40E_L3_SRC_MASK);
3522         if (old_value != new_value)
3523                 netif_info(pf, drv, vsi->netdev, "L3 source address: %s -> %s\n",
3524                            old_value ? "ON" : "OFF",
3525                            new_value ? "ON" : "OFF");
3526
3527         old_value = !!(old & I40E_L3_DST_MASK);
3528         new_value = !!(new & I40E_L3_DST_MASK);
3529         if (old_value != new_value)
3530                 netif_info(pf, drv, vsi->netdev, "L3 destination address: %s -> %s\n",
3531                            old_value ? "ON" : "OFF",
3532                            new_value ? "ON" : "OFF");
3533
3534         old_value = !!(old & I40E_L4_SRC_MASK);
3535         new_value = !!(new & I40E_L4_SRC_MASK);
3536         if (old_value != new_value)
3537                 netif_info(pf, drv, vsi->netdev, "L4 source port: %s -> %s\n",
3538                            old_value ? "ON" : "OFF",
3539                            new_value ? "ON" : "OFF");
3540
3541         old_value = !!(old & I40E_L4_DST_MASK);
3542         new_value = !!(new & I40E_L4_DST_MASK);
3543         if (old_value != new_value)
3544                 netif_info(pf, drv, vsi->netdev, "L4 destination port: %s -> %s\n",
3545                            old_value ? "ON" : "OFF",
3546                            new_value ? "ON" : "OFF");
3547
3548         old_value = !!(old & I40E_VERIFY_TAG_MASK);
3549         new_value = !!(new & I40E_VERIFY_TAG_MASK);
3550         if (old_value != new_value)
3551                 netif_info(pf, drv, vsi->netdev, "SCTP verification tag: %s -> %s\n",
3552                            old_value ? "ON" : "OFF",
3553                            new_value ? "ON" : "OFF");
3554
3555         /* Show change of flexible filter entries */
3556         for (i = 0; i < I40E_FLEX_INDEX_ENTRIES; i++) {
3557                 u64 flex_mask = i40e_pit_index_to_mask(i);
3558
3559                 old_value = !!(old & flex_mask);
3560                 new_value = !!(new & flex_mask);
3561                 if (old_value != new_value)
3562                         netif_info(pf, drv, vsi->netdev, "FLEX index %d: %s -> %s\n",
3563                                    i,
3564                                    old_value ? "ON" : "OFF",
3565                                    new_value ? "ON" : "OFF");
3566         }
3567
3568         netif_info(pf, drv, vsi->netdev, "  Current input set: %0llx\n",
3569                    old);
3570         netif_info(pf, drv, vsi->netdev, "Requested input set: %0llx\n",
3571                    new);
3572 }
3573
3574 /**
3575  * i40e_check_fdir_input_set - Check that a given rx_flow_spec mask is valid
3576  * @vsi: pointer to the targeted VSI
3577  * @fsp: pointer to Rx flow specification
3578  * @userdef: userdefined data from flow specification
3579  *
3580  * Ensures that a given ethtool_rx_flow_spec has a valid mask. Some support
3581  * for partial matches exists with a few limitations. First, hardware only
3582  * supports masking by word boundary (2 bytes) and not per individual bit.
3583  * Second, hardware is limited to using one mask for a flow type and cannot
3584  * use a separate mask for each filter.
3585  *
3586  * To support these limitations, if we already have a configured filter for
3587  * the specified type, this function enforces that new filters of the type
3588  * match the configured input set. Otherwise, if we do not have a filter of
3589  * the specified type, we allow the input set to be updated to match the
3590  * desired filter.
3591  *
3592  * To help ensure that administrators understand why filters weren't displayed
3593  * as supported, we print a diagnostic message displaying how the input set
3594  * would change and warning to delete the preexisting filters if required.
3595  *
3596  * Returns 0 on successful input set match, and a negative return code on
3597  * failure.
3598  **/
3599 static int i40e_check_fdir_input_set(struct i40e_vsi *vsi,
3600                                      struct ethtool_rx_flow_spec *fsp,
3601                                      struct i40e_rx_flow_userdef *userdef)
3602 {
3603         struct i40e_pf *pf = vsi->back;
3604         struct ethtool_tcpip4_spec *tcp_ip4_spec;
3605         struct ethtool_usrip4_spec *usr_ip4_spec;
3606         u64 current_mask, new_mask;
3607         bool new_flex_offset = false;
3608         bool flex_l3 = false;
3609         u16 *fdir_filter_count;
3610         u16 index, src_offset = 0;
3611         u8 pit_index = 0;
3612         int err;
3613
3614         switch (fsp->flow_type & ~FLOW_EXT) {
3615         case SCTP_V4_FLOW:
3616                 index = I40E_FILTER_PCTYPE_NONF_IPV4_SCTP;
3617                 fdir_filter_count = &pf->fd_sctp4_filter_cnt;
3618                 break;
3619         case TCP_V4_FLOW:
3620                 index = I40E_FILTER_PCTYPE_NONF_IPV4_TCP;
3621                 fdir_filter_count = &pf->fd_tcp4_filter_cnt;
3622                 break;
3623         case UDP_V4_FLOW:
3624                 index = I40E_FILTER_PCTYPE_NONF_IPV4_UDP;
3625                 fdir_filter_count = &pf->fd_udp4_filter_cnt;
3626                 break;
3627         case IP_USER_FLOW:
3628                 index = I40E_FILTER_PCTYPE_NONF_IPV4_OTHER;
3629                 fdir_filter_count = &pf->fd_ip4_filter_cnt;
3630                 flex_l3 = true;
3631                 break;
3632         default:
3633                 return -EOPNOTSUPP;
3634         }
3635
3636         /* Read the current input set from register memory. */
3637         current_mask = i40e_read_fd_input_set(pf, index);
3638         new_mask = current_mask;
3639
3640         /* Determine, if any, the required changes to the input set in order
3641          * to support the provided mask.
3642          *
3643          * Hardware only supports masking at word (2 byte) granularity and does
3644          * not support full bitwise masking. This implementation simplifies
3645          * even further and only supports fully enabled or fully disabled
3646          * masks for each field, even though we could split the ip4src and
3647          * ip4dst fields.
3648          */
3649         switch (fsp->flow_type & ~FLOW_EXT) {
3650         case SCTP_V4_FLOW:
3651                 new_mask &= ~I40E_VERIFY_TAG_MASK;
3652                 /* Fall through */
3653         case TCP_V4_FLOW:
3654         case UDP_V4_FLOW:
3655                 tcp_ip4_spec = &fsp->m_u.tcp_ip4_spec;
3656
3657                 /* IPv4 source address */
3658                 if (tcp_ip4_spec->ip4src == htonl(0xFFFFFFFF))
3659                         new_mask |= I40E_L3_SRC_MASK;
3660                 else if (!tcp_ip4_spec->ip4src)
3661                         new_mask &= ~I40E_L3_SRC_MASK;
3662                 else
3663                         return -EOPNOTSUPP;
3664
3665                 /* IPv4 destination address */
3666                 if (tcp_ip4_spec->ip4dst == htonl(0xFFFFFFFF))
3667                         new_mask |= I40E_L3_DST_MASK;
3668                 else if (!tcp_ip4_spec->ip4dst)
3669                         new_mask &= ~I40E_L3_DST_MASK;
3670                 else
3671                         return -EOPNOTSUPP;
3672
3673                 /* L4 source port */
3674                 if (tcp_ip4_spec->psrc == htons(0xFFFF))
3675                         new_mask |= I40E_L4_SRC_MASK;
3676                 else if (!tcp_ip4_spec->psrc)
3677                         new_mask &= ~I40E_L4_SRC_MASK;
3678                 else
3679                         return -EOPNOTSUPP;
3680
3681                 /* L4 destination port */
3682                 if (tcp_ip4_spec->pdst == htons(0xFFFF))
3683                         new_mask |= I40E_L4_DST_MASK;
3684                 else if (!tcp_ip4_spec->pdst)
3685                         new_mask &= ~I40E_L4_DST_MASK;
3686                 else
3687                         return -EOPNOTSUPP;
3688
3689                 /* Filtering on Type of Service is not supported. */
3690                 if (tcp_ip4_spec->tos)
3691                         return -EOPNOTSUPP;
3692
3693                 break;
3694         case IP_USER_FLOW:
3695                 usr_ip4_spec = &fsp->m_u.usr_ip4_spec;
3696
3697                 /* IPv4 source address */
3698                 if (usr_ip4_spec->ip4src == htonl(0xFFFFFFFF))
3699                         new_mask |= I40E_L3_SRC_MASK;
3700                 else if (!usr_ip4_spec->ip4src)
3701                         new_mask &= ~I40E_L3_SRC_MASK;
3702                 else
3703                         return -EOPNOTSUPP;
3704
3705                 /* IPv4 destination address */
3706                 if (usr_ip4_spec->ip4dst == htonl(0xFFFFFFFF))
3707                         new_mask |= I40E_L3_DST_MASK;
3708                 else if (!usr_ip4_spec->ip4dst)
3709                         new_mask &= ~I40E_L3_DST_MASK;
3710                 else
3711                         return -EOPNOTSUPP;
3712
3713                 /* First 4 bytes of L4 header */
3714                 if (usr_ip4_spec->l4_4_bytes == htonl(0xFFFFFFFF))
3715                         new_mask |= I40E_L4_SRC_MASK | I40E_L4_DST_MASK;
3716                 else if (!usr_ip4_spec->l4_4_bytes)
3717                         new_mask &= ~(I40E_L4_SRC_MASK | I40E_L4_DST_MASK);
3718                 else
3719                         return -EOPNOTSUPP;
3720
3721                 /* Filtering on Type of Service is not supported. */
3722                 if (usr_ip4_spec->tos)
3723                         return -EOPNOTSUPP;
3724
3725                 /* Filtering on IP version is not supported */
3726                 if (usr_ip4_spec->ip_ver)
3727                         return -EINVAL;
3728
3729                 /* Filtering on L4 protocol is not supported */
3730                 if (usr_ip4_spec->proto)
3731                         return -EINVAL;
3732
3733                 break;
3734         default:
3735                 return -EOPNOTSUPP;
3736         }
3737
3738         /* First, clear all flexible filter entries */
3739         new_mask &= ~I40E_FLEX_INPUT_MASK;
3740
3741         /* If we have a flexible filter, try to add this offset to the correct
3742          * flexible filter PIT list. Once finished, we can update the mask.
3743          * If the src_offset changed, we will get a new mask value which will
3744          * trigger an input set change.
3745          */
3746         if (userdef->flex_filter) {
3747                 struct i40e_flex_pit *l3_flex_pit = NULL, *flex_pit = NULL;
3748
3749                 /* Flexible offset must be even, since the flexible payload
3750                  * must be aligned on 2-byte boundary.
3751                  */
3752                 if (userdef->flex_offset & 0x1) {
3753                         dev_warn(&pf->pdev->dev,
3754                                  "Flexible data offset must be 2-byte aligned\n");
3755                         return -EINVAL;
3756                 }
3757
3758                 src_offset = userdef->flex_offset >> 1;
3759
3760                 /* FLX_PIT source offset value is only so large */
3761                 if (src_offset > I40E_MAX_FLEX_SRC_OFFSET) {
3762                         dev_warn(&pf->pdev->dev,
3763                                  "Flexible data must reside within first 64 bytes of the packet payload\n");
3764                         return -EINVAL;
3765                 }
3766
3767                 /* See if this offset has already been programmed. If we get
3768                  * an ERR_PTR, then the filter is not safe to add. Otherwise,
3769                  * if we get a NULL pointer, this means we will need to add
3770                  * the offset.
3771                  */
3772                 flex_pit = i40e_find_flex_offset(&pf->l4_flex_pit_list,
3773                                                  src_offset);
3774                 if (IS_ERR(flex_pit))
3775                         return PTR_ERR(flex_pit);
3776
3777                 /* IP_USER_FLOW filters match both L4 (ICMP) and L3 (unknown)
3778                  * packet types, and thus we need to program both L3 and L4
3779                  * flexible values. These must have identical flexible index,
3780                  * as otherwise we can't correctly program the input set. So
3781                  * we'll find both an L3 and L4 index and make sure they are
3782                  * the same.
3783                  */
3784                 if (flex_l3) {
3785                         l3_flex_pit =
3786                                 i40e_find_flex_offset(&pf->l3_flex_pit_list,
3787                                                       src_offset);
3788                         if (IS_ERR(l3_flex_pit))
3789                                 return PTR_ERR(l3_flex_pit);
3790
3791                         if (flex_pit) {
3792                                 /* If we already had a matching L4 entry, we
3793                                  * need to make sure that the L3 entry we
3794                                  * obtained uses the same index.
3795                                  */
3796                                 if (l3_flex_pit) {
3797                                         if (l3_flex_pit->pit_index !=
3798                                             flex_pit->pit_index) {
3799                                                 return -EINVAL;
3800                                         }
3801                                 } else {
3802                                         new_flex_offset = true;
3803                                 }
3804                         } else {
3805                                 flex_pit = l3_flex_pit;
3806                         }
3807                 }
3808
3809                 /* If we didn't find an existing flex offset, we need to
3810                  * program a new one. However, we don't immediately program it
3811                  * here because we will wait to program until after we check
3812                  * that it is safe to change the input set.
3813                  */
3814                 if (!flex_pit) {
3815                         new_flex_offset = true;
3816                         pit_index = i40e_unused_pit_index(pf);
3817                 } else {
3818                         pit_index = flex_pit->pit_index;
3819                 }
3820
3821                 /* Update the mask with the new offset */
3822                 new_mask |= i40e_pit_index_to_mask(pit_index);
3823         }
3824
3825         /* If the mask and flexible filter offsets for this filter match the
3826          * currently programmed values we don't need any input set change, so
3827          * this filter is safe to install.
3828          */
3829         if (new_mask == current_mask && !new_flex_offset)
3830                 return 0;
3831
3832         netif_info(pf, drv, vsi->netdev, "Input set change requested for %s flows:\n",
3833                    i40e_flow_str(fsp));
3834         i40e_print_input_set(vsi, current_mask, new_mask);
3835         if (new_flex_offset) {
3836                 netif_info(pf, drv, vsi->netdev, "FLEX index %d: Offset -> %d",
3837                            pit_index, src_offset);
3838         }
3839
3840         /* Hardware input sets are global across multiple ports, so even the
3841          * main port cannot change them when in MFP mode as this would impact
3842          * any filters on the other ports.
3843          */
3844         if (pf->flags & I40E_FLAG_MFP_ENABLED) {
3845                 netif_err(pf, drv, vsi->netdev, "Cannot change Flow Director input sets while MFP is enabled\n");
3846                 return -EOPNOTSUPP;
3847         }
3848
3849         /* This filter requires us to update the input set. However, hardware
3850          * only supports one input set per flow type, and does not support
3851          * separate masks for each filter. This means that we can only support
3852          * a single mask for all filters of a specific type.
3853          *
3854          * If we have preexisting filters, they obviously depend on the
3855          * current programmed input set. Display a diagnostic message in this
3856          * case explaining why the filter could not be accepted.
3857          */
3858         if (*fdir_filter_count) {
3859                 netif_err(pf, drv, vsi->netdev, "Cannot change input set for %s flows until %d preexisting filters are removed\n",
3860                           i40e_flow_str(fsp),
3861                           *fdir_filter_count);
3862                 return -EOPNOTSUPP;
3863         }
3864
3865         i40e_write_fd_input_set(pf, index, new_mask);
3866
3867         /* IP_USER_FLOW filters match both IPv4/Other and IPv4/Fragmented
3868          * frames. If we're programming the input set for IPv4/Other, we also
3869          * need to program the IPv4/Fragmented input set. Since we don't have
3870          * separate support, we'll always assume and enforce that the two flow
3871          * types must have matching input sets.
3872          */
3873         if (index == I40E_FILTER_PCTYPE_NONF_IPV4_OTHER)
3874                 i40e_write_fd_input_set(pf, I40E_FILTER_PCTYPE_FRAG_IPV4,
3875                                         new_mask);
3876
3877         /* Add the new offset and update table, if necessary */
3878         if (new_flex_offset) {
3879                 err = i40e_add_flex_offset(&pf->l4_flex_pit_list, src_offset,
3880                                            pit_index);
3881                 if (err)
3882                         return err;
3883
3884                 if (flex_l3) {
3885                         err = i40e_add_flex_offset(&pf->l3_flex_pit_list,
3886                                                    src_offset,
3887                                                    pit_index);
3888                         if (err)
3889                                 return err;
3890                 }
3891
3892                 i40e_reprogram_flex_pit(pf);
3893         }
3894
3895         return 0;
3896 }
3897
3898 /**
3899  * i40e_match_fdir_filter - Return true of two filters match
3900  * @a: pointer to filter struct
3901  * @b: pointer to filter struct
3902  *
3903  * Returns true if the two filters match exactly the same criteria. I.e. they
3904  * match the same flow type and have the same parameters. We don't need to
3905  * check any input-set since all filters of the same flow type must use the
3906  * same input set.
3907  **/
3908 static bool i40e_match_fdir_filter(struct i40e_fdir_filter *a,
3909                                    struct i40e_fdir_filter *b)
3910 {
3911         /* The filters do not much if any of these criteria differ. */
3912         if (a->dst_ip != b->dst_ip ||
3913             a->src_ip != b->src_ip ||
3914             a->dst_port != b->dst_port ||
3915             a->src_port != b->src_port ||
3916             a->flow_type != b->flow_type ||
3917             a->ip4_proto != b->ip4_proto)
3918                 return false;
3919
3920         return true;
3921 }
3922
3923 /**
3924  * i40e_disallow_matching_filters - Check that new filters differ
3925  * @vsi: pointer to the targeted VSI
3926  * @input: new filter to check
3927  *
3928  * Due to hardware limitations, it is not possible for two filters that match
3929  * similar criteria to be programmed at the same time. This is true for a few
3930  * reasons:
3931  *
3932  * (a) all filters matching a particular flow type must use the same input
3933  * set, that is they must match the same criteria.
3934  * (b) different flow types will never match the same packet, as the flow type
3935  * is decided by hardware before checking which rules apply.
3936  * (c) hardware has no way to distinguish which order filters apply in.
3937  *
3938  * Due to this, we can't really support using the location data to order
3939  * filters in the hardware parsing. It is technically possible for the user to
3940  * request two filters matching the same criteria but which select different
3941  * queues. In this case, rather than keep both filters in the list, we reject
3942  * the 2nd filter when the user requests adding it.
3943  *
3944  * This avoids needing to track location for programming the filter to
3945  * hardware, and ensures that we avoid some strange scenarios involving
3946  * deleting filters which match the same criteria.
3947  **/
3948 static int i40e_disallow_matching_filters(struct i40e_vsi *vsi,
3949                                           struct i40e_fdir_filter *input)
3950 {
3951         struct i40e_pf *pf = vsi->back;
3952         struct i40e_fdir_filter *rule;
3953         struct hlist_node *node2;
3954
3955         /* Loop through every filter, and check that it doesn't match */
3956         hlist_for_each_entry_safe(rule, node2,
3957                                   &pf->fdir_filter_list, fdir_node) {
3958                 /* Don't check the filters match if they share the same fd_id,
3959                  * since the new filter is actually just updating the target
3960                  * of the old filter.
3961                  */
3962                 if (rule->fd_id == input->fd_id)
3963                         continue;
3964
3965                 /* If any filters match, then print a warning message to the
3966                  * kernel message buffer and bail out.
3967                  */
3968                 if (i40e_match_fdir_filter(rule, input)) {
3969                         dev_warn(&pf->pdev->dev,
3970                                  "Existing user defined filter %d already matches this flow.\n",
3971                                  rule->fd_id);
3972                         return -EINVAL;
3973                 }
3974         }
3975
3976         return 0;
3977 }
3978
3979 /**
3980  * i40e_add_fdir_ethtool - Add/Remove Flow Director filters
3981  * @vsi: pointer to the targeted VSI
3982  * @cmd: command to get or set RX flow classification rules
3983  *
3984  * Add Flow Director filters for a specific flow spec based on their
3985  * protocol.  Returns 0 if the filters were successfully added.
3986  **/
3987 static int i40e_add_fdir_ethtool(struct i40e_vsi *vsi,
3988                                  struct ethtool_rxnfc *cmd)
3989 {
3990         struct i40e_rx_flow_userdef userdef;
3991         struct ethtool_rx_flow_spec *fsp;
3992         struct i40e_fdir_filter *input;
3993         u16 dest_vsi = 0, q_index = 0;
3994         struct i40e_pf *pf;
3995         int ret = -EINVAL;
3996         u8 dest_ctl;
3997
3998         if (!vsi)
3999                 return -EINVAL;
4000         pf = vsi->back;
4001
4002         if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED))
4003                 return -EOPNOTSUPP;
4004
4005         if (test_bit(__I40E_FD_SB_AUTO_DISABLED, pf->state))
4006                 return -ENOSPC;
4007
4008         if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||
4009             test_bit(__I40E_RESET_INTR_RECEIVED, pf->state))
4010                 return -EBUSY;
4011
4012         if (test_bit(__I40E_FD_FLUSH_REQUESTED, pf->state))
4013                 return -EBUSY;
4014
4015         fsp = (struct ethtool_rx_flow_spec *)&cmd->fs;
4016
4017         /* Parse the user-defined field */
4018         if (i40e_parse_rx_flow_user_data(fsp, &userdef))
4019                 return -EINVAL;
4020
4021         /* Extended MAC field is not supported */
4022         if (fsp->flow_type & FLOW_MAC_EXT)
4023                 return -EINVAL;
4024
4025         ret = i40e_check_fdir_input_set(vsi, fsp, &userdef);
4026         if (ret)
4027                 return ret;
4028
4029         if (fsp->location >= (pf->hw.func_caps.fd_filters_best_effort +
4030                               pf->hw.func_caps.fd_filters_guaranteed)) {
4031                 return -EINVAL;
4032         }
4033
4034         /* ring_cookie is either the drop index, or is a mask of the queue
4035          * index and VF id we wish to target.
4036          */
4037         if (fsp->ring_cookie == RX_CLS_FLOW_DISC) {
4038                 dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET;
4039         } else {
4040                 u32 ring = ethtool_get_flow_spec_ring(fsp->ring_cookie);
4041                 u8 vf = ethtool_get_flow_spec_ring_vf(fsp->ring_cookie);
4042
4043                 if (!vf) {
4044                         if (ring >= vsi->num_queue_pairs)
4045                                 return -EINVAL;
4046                         dest_vsi = vsi->id;
4047                 } else {
4048                         /* VFs are zero-indexed, so we subtract one here */
4049                         vf--;
4050
4051                         if (vf >= pf->num_alloc_vfs)
4052                                 return -EINVAL;
4053                         if (ring >= pf->vf[vf].num_queue_pairs)
4054                                 return -EINVAL;
4055                         dest_vsi = pf->vf[vf].lan_vsi_id;
4056                 }
4057                 dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DIRECT_PACKET_QINDEX;
4058                 q_index = ring;
4059         }
4060
4061         input = kzalloc(sizeof(*input), GFP_KERNEL);
4062
4063         if (!input)
4064                 return -ENOMEM;
4065
4066         input->fd_id = fsp->location;
4067         input->q_index = q_index;
4068         input->dest_vsi = dest_vsi;
4069         input->dest_ctl = dest_ctl;
4070         input->fd_status = I40E_FILTER_PROGRAM_DESC_FD_STATUS_FD_ID;
4071         input->cnt_index  = I40E_FD_SB_STAT_IDX(pf->hw.pf_id);
4072         input->dst_ip = fsp->h_u.tcp_ip4_spec.ip4src;
4073         input->src_ip = fsp->h_u.tcp_ip4_spec.ip4dst;
4074         input->flow_type = fsp->flow_type & ~FLOW_EXT;
4075         input->ip4_proto = fsp->h_u.usr_ip4_spec.proto;
4076
4077         /* Reverse the src and dest notion, since the HW expects them to be from
4078          * Tx perspective where as the input from user is from Rx filter view.
4079          */
4080         input->dst_port = fsp->h_u.tcp_ip4_spec.psrc;
4081         input->src_port = fsp->h_u.tcp_ip4_spec.pdst;
4082         input->dst_ip = fsp->h_u.tcp_ip4_spec.ip4src;
4083         input->src_ip = fsp->h_u.tcp_ip4_spec.ip4dst;
4084
4085         if (userdef.flex_filter) {
4086                 input->flex_filter = true;
4087                 input->flex_word = cpu_to_be16(userdef.flex_word);
4088                 input->flex_offset = userdef.flex_offset;
4089         }
4090
4091         /* Avoid programming two filters with identical match criteria. */
4092         ret = i40e_disallow_matching_filters(vsi, input);
4093         if (ret)
4094                 goto free_filter_memory;
4095
4096         /* Add the input filter to the fdir_input_list, possibly replacing
4097          * a previous filter. Do not free the input structure after adding it
4098          * to the list as this would cause a use-after-free bug.
4099          */
4100         i40e_update_ethtool_fdir_entry(vsi, input, fsp->location, NULL);
4101         ret = i40e_add_del_fdir(vsi, input, true);
4102         if (ret)
4103                 goto remove_sw_rule;
4104         return 0;
4105
4106 remove_sw_rule:
4107         hlist_del(&input->fdir_node);
4108         pf->fdir_pf_active_filters--;
4109 free_filter_memory:
4110         kfree(input);
4111         return ret;
4112 }
4113
4114 /**
4115  * i40e_set_rxnfc - command to set RX flow classification rules
4116  * @netdev: network interface device structure
4117  * @cmd: ethtool rxnfc command
4118  *
4119  * Returns Success if the command is supported.
4120  **/
4121 static int i40e_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd)
4122 {
4123         struct i40e_netdev_priv *np = netdev_priv(netdev);
4124         struct i40e_vsi *vsi = np->vsi;
4125         struct i40e_pf *pf = vsi->back;
4126         int ret = -EOPNOTSUPP;
4127
4128         switch (cmd->cmd) {
4129         case ETHTOOL_SRXFH:
4130                 ret = i40e_set_rss_hash_opt(pf, cmd);
4131                 break;
4132         case ETHTOOL_SRXCLSRLINS:
4133                 ret = i40e_add_fdir_ethtool(vsi, cmd);
4134                 break;
4135         case ETHTOOL_SRXCLSRLDEL:
4136                 ret = i40e_del_fdir_entry(vsi, cmd);
4137                 break;
4138         default:
4139                 break;
4140         }
4141
4142         return ret;
4143 }
4144
4145 /**
4146  * i40e_max_channels - get Max number of combined channels supported
4147  * @vsi: vsi pointer
4148  **/
4149 static unsigned int i40e_max_channels(struct i40e_vsi *vsi)
4150 {
4151         /* TODO: This code assumes DCB and FD is disabled for now. */
4152         return vsi->alloc_queue_pairs;
4153 }
4154
4155 /**
4156  * i40e_get_channels - Get the current channels enabled and max supported etc.
4157  * @dev: network interface device structure
4158  * @ch: ethtool channels structure
4159  *
4160  * We don't support separate tx and rx queues as channels. The other count
4161  * represents how many queues are being used for control. max_combined counts
4162  * how many queue pairs we can support. They may not be mapped 1 to 1 with
4163  * q_vectors since we support a lot more queue pairs than q_vectors.
4164  **/
4165 static void i40e_get_channels(struct net_device *dev,
4166                               struct ethtool_channels *ch)
4167 {
4168         struct i40e_netdev_priv *np = netdev_priv(dev);
4169         struct i40e_vsi *vsi = np->vsi;
4170         struct i40e_pf *pf = vsi->back;
4171
4172         /* report maximum channels */
4173         ch->max_combined = i40e_max_channels(vsi);
4174
4175         /* report info for other vector */
4176         ch->other_count = (pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0;
4177         ch->max_other = ch->other_count;
4178
4179         /* Note: This code assumes DCB is disabled for now. */
4180         ch->combined_count = vsi->num_queue_pairs;
4181 }
4182
4183 /**
4184  * i40e_set_channels - Set the new channels count.
4185  * @dev: network interface device structure
4186  * @ch: ethtool channels structure
4187  *
4188  * The new channels count may not be the same as requested by the user
4189  * since it gets rounded down to a power of 2 value.
4190  **/
4191 static int i40e_set_channels(struct net_device *dev,
4192                              struct ethtool_channels *ch)
4193 {
4194         const u8 drop = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET;
4195         struct i40e_netdev_priv *np = netdev_priv(dev);
4196         unsigned int count = ch->combined_count;
4197         struct i40e_vsi *vsi = np->vsi;
4198         struct i40e_pf *pf = vsi->back;
4199         struct i40e_fdir_filter *rule;
4200         struct hlist_node *node2;
4201         int new_count;
4202         int err = 0;
4203
4204         /* We do not support setting channels for any other VSI at present */
4205         if (vsi->type != I40E_VSI_MAIN)
4206                 return -EINVAL;
4207
4208         /* We do not support setting channels via ethtool when TCs are
4209          * configured through mqprio
4210          */
4211         if (pf->flags & I40E_FLAG_TC_MQPRIO)
4212                 return -EINVAL;
4213
4214         /* verify they are not requesting separate vectors */
4215         if (!count || ch->rx_count || ch->tx_count)
4216                 return -EINVAL;
4217
4218         /* verify other_count has not changed */
4219         if (ch->other_count != ((pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0))
4220                 return -EINVAL;
4221
4222         /* verify the number of channels does not exceed hardware limits */
4223         if (count > i40e_max_channels(vsi))
4224                 return -EINVAL;
4225
4226         /* verify that the number of channels does not invalidate any current
4227          * flow director rules
4228          */
4229         hlist_for_each_entry_safe(rule, node2,
4230                                   &pf->fdir_filter_list, fdir_node) {
4231                 if (rule->dest_ctl != drop && count <= rule->q_index) {
4232                         dev_warn(&pf->pdev->dev,
4233                                  "Existing user defined filter %d assigns flow to queue %d\n",
4234                                  rule->fd_id, rule->q_index);
4235                         err = -EINVAL;
4236                 }
4237         }
4238
4239         if (err) {
4240                 dev_err(&pf->pdev->dev,
4241                         "Existing filter rules must be deleted to reduce combined channel count to %d\n",
4242                         count);
4243                 return err;
4244         }
4245
4246         /* update feature limits from largest to smallest supported values */
4247         /* TODO: Flow director limit, DCB etc */
4248
4249         /* use rss_reconfig to rebuild with new queue count and update traffic
4250          * class queue mapping
4251          */
4252         new_count = i40e_reconfig_rss_queues(pf, count);
4253         if (new_count > 0)
4254                 return 0;
4255         else
4256                 return -EINVAL;
4257 }
4258
4259 /**
4260  * i40e_get_rxfh_key_size - get the RSS hash key size
4261  * @netdev: network interface device structure
4262  *
4263  * Returns the table size.
4264  **/
4265 static u32 i40e_get_rxfh_key_size(struct net_device *netdev)
4266 {
4267         return I40E_HKEY_ARRAY_SIZE;
4268 }
4269
4270 /**
4271  * i40e_get_rxfh_indir_size - get the rx flow hash indirection table size
4272  * @netdev: network interface device structure
4273  *
4274  * Returns the table size.
4275  **/
4276 static u32 i40e_get_rxfh_indir_size(struct net_device *netdev)
4277 {
4278         return I40E_HLUT_ARRAY_SIZE;
4279 }
4280
4281 /**
4282  * i40e_get_rxfh - get the rx flow hash indirection table
4283  * @netdev: network interface device structure
4284  * @indir: indirection table
4285  * @key: hash key
4286  * @hfunc: hash function
4287  *
4288  * Reads the indirection table directly from the hardware. Returns 0 on
4289  * success.
4290  **/
4291 static int i40e_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key,
4292                          u8 *hfunc)
4293 {
4294         struct i40e_netdev_priv *np = netdev_priv(netdev);
4295         struct i40e_vsi *vsi = np->vsi;
4296         u8 *lut, *seed = NULL;
4297         int ret;
4298         u16 i;
4299
4300         if (hfunc)
4301                 *hfunc = ETH_RSS_HASH_TOP;
4302
4303         if (!indir)
4304                 return 0;
4305
4306         seed = key;
4307         lut = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL);
4308         if (!lut)
4309                 return -ENOMEM;
4310         ret = i40e_get_rss(vsi, seed, lut, I40E_HLUT_ARRAY_SIZE);
4311         if (ret)
4312                 goto out;
4313         for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++)
4314                 indir[i] = (u32)(lut[i]);
4315
4316 out:
4317         kfree(lut);
4318
4319         return ret;
4320 }
4321
4322 /**
4323  * i40e_set_rxfh - set the rx flow hash indirection table
4324  * @netdev: network interface device structure
4325  * @indir: indirection table
4326  * @key: hash key
4327  * @hfunc: hash function to use
4328  *
4329  * Returns -EINVAL if the table specifies an invalid queue id, otherwise
4330  * returns 0 after programming the table.
4331  **/
4332 static int i40e_set_rxfh(struct net_device *netdev, const u32 *indir,
4333                          const u8 *key, const u8 hfunc)
4334 {
4335         struct i40e_netdev_priv *np = netdev_priv(netdev);
4336         struct i40e_vsi *vsi = np->vsi;
4337         struct i40e_pf *pf = vsi->back;
4338         u8 *seed = NULL;
4339         u16 i;
4340
4341         if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)
4342                 return -EOPNOTSUPP;
4343
4344         if (key) {
4345                 if (!vsi->rss_hkey_user) {
4346                         vsi->rss_hkey_user = kzalloc(I40E_HKEY_ARRAY_SIZE,
4347                                                      GFP_KERNEL);
4348                         if (!vsi->rss_hkey_user)
4349                                 return -ENOMEM;
4350                 }
4351                 memcpy(vsi->rss_hkey_user, key, I40E_HKEY_ARRAY_SIZE);
4352                 seed = vsi->rss_hkey_user;
4353         }
4354         if (!vsi->rss_lut_user) {
4355                 vsi->rss_lut_user = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL);
4356                 if (!vsi->rss_lut_user)
4357                         return -ENOMEM;
4358         }
4359
4360         /* Each 32 bits pointed by 'indir' is stored with a lut entry */
4361         if (indir)
4362                 for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++)
4363                         vsi->rss_lut_user[i] = (u8)(indir[i]);
4364         else
4365                 i40e_fill_rss_lut(pf, vsi->rss_lut_user, I40E_HLUT_ARRAY_SIZE,
4366                                   vsi->rss_size);
4367
4368         return i40e_config_rss(vsi, seed, vsi->rss_lut_user,
4369                                I40E_HLUT_ARRAY_SIZE);
4370 }
4371
4372 /**
4373  * i40e_get_priv_flags - report device private flags
4374  * @dev: network interface device structure
4375  *
4376  * The get string set count and the string set should be matched for each
4377  * flag returned.  Add new strings for each flag to the i40e_gstrings_priv_flags
4378  * array.
4379  *
4380  * Returns a u32 bitmap of flags.
4381  **/
4382 static u32 i40e_get_priv_flags(struct net_device *dev)
4383 {
4384         struct i40e_netdev_priv *np = netdev_priv(dev);
4385         struct i40e_vsi *vsi = np->vsi;
4386         struct i40e_pf *pf = vsi->back;
4387         u32 i, j, ret_flags = 0;
4388
4389         for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) {
4390                 const struct i40e_priv_flags *priv_flags;
4391
4392                 priv_flags = &i40e_gstrings_priv_flags[i];
4393
4394                 if (priv_flags->flag & pf->flags)
4395                         ret_flags |= BIT(i);
4396         }
4397
4398         if (pf->hw.pf_id != 0)
4399                 return ret_flags;
4400
4401         for (j = 0; j < I40E_GL_PRIV_FLAGS_STR_LEN; j++) {
4402                 const struct i40e_priv_flags *priv_flags;
4403
4404                 priv_flags = &i40e_gl_gstrings_priv_flags[j];
4405
4406                 if (priv_flags->flag & pf->flags)
4407                         ret_flags |= BIT(i + j);
4408         }
4409
4410         return ret_flags;
4411 }
4412
4413 /**
4414  * i40e_set_priv_flags - set private flags
4415  * @dev: network interface device structure
4416  * @flags: bit flags to be set
4417  **/
4418 static int i40e_set_priv_flags(struct net_device *dev, u32 flags)
4419 {
4420         struct i40e_netdev_priv *np = netdev_priv(dev);
4421         struct i40e_vsi *vsi = np->vsi;
4422         struct i40e_pf *pf = vsi->back;
4423         u64 orig_flags, new_flags, changed_flags;
4424         u32 i, j;
4425
4426         orig_flags = READ_ONCE(pf->flags);
4427         new_flags = orig_flags;
4428
4429         for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) {
4430                 const struct i40e_priv_flags *priv_flags;
4431
4432                 priv_flags = &i40e_gstrings_priv_flags[i];
4433
4434                 if (flags & BIT(i))
4435                         new_flags |= priv_flags->flag;
4436                 else
4437                         new_flags &= ~(priv_flags->flag);
4438
4439                 /* If this is a read-only flag, it can't be changed */
4440                 if (priv_flags->read_only &&
4441                     ((orig_flags ^ new_flags) & ~BIT(i)))
4442                         return -EOPNOTSUPP;
4443         }
4444
4445         if (pf->hw.pf_id != 0)
4446                 goto flags_complete;
4447
4448         for (j = 0; j < I40E_GL_PRIV_FLAGS_STR_LEN; j++) {
4449                 const struct i40e_priv_flags *priv_flags;
4450
4451                 priv_flags = &i40e_gl_gstrings_priv_flags[j];
4452
4453                 if (flags & BIT(i + j))
4454                         new_flags |= priv_flags->flag;
4455                 else
4456                         new_flags &= ~(priv_flags->flag);
4457
4458                 /* If this is a read-only flag, it can't be changed */
4459                 if (priv_flags->read_only &&
4460                     ((orig_flags ^ new_flags) & ~BIT(i)))
4461                         return -EOPNOTSUPP;
4462         }
4463
4464 flags_complete:
4465         changed_flags = orig_flags ^ new_flags;
4466
4467         /* Before we finalize any flag changes, we need to perform some
4468          * checks to ensure that the changes are supported and safe.
4469          */
4470
4471         /* ATR eviction is not supported on all devices */
4472         if ((new_flags & I40E_FLAG_HW_ATR_EVICT_ENABLED) &&
4473             !(pf->hw_features & I40E_HW_ATR_EVICT_CAPABLE))
4474                 return -EOPNOTSUPP;
4475
4476         /* If the driver detected FW LLDP was disabled on init, this flag could
4477          * be set, however we do not support _changing_ the flag if NPAR is
4478          * enabled or FW API version < 1.7.  There are situations where older
4479          * FW versions/NPAR enabled PFs could disable LLDP, however we _must_
4480          * not allow the user to enable/disable LLDP with this flag on
4481          * unsupported FW versions.
4482          */
4483         if (changed_flags & I40E_FLAG_DISABLE_FW_LLDP) {
4484                 if (!(pf->hw_features & I40E_HW_STOPPABLE_FW_LLDP)) {
4485                         dev_warn(&pf->pdev->dev,
4486                                  "Device does not support changing FW LLDP\n");
4487                         return -EOPNOTSUPP;
4488                 }
4489         }
4490
4491         /* Now that we've checked to ensure that the new flags are valid, load
4492          * them into place. Since we only modify flags either (a) during
4493          * initialization or (b) while holding the RTNL lock, we don't need
4494          * anything fancy here.
4495          */
4496         pf->flags = new_flags;
4497
4498         /* Process any additional changes needed as a result of flag changes.
4499          * The changed_flags value reflects the list of bits that were
4500          * changed in the code above.
4501          */
4502
4503         /* Flush current ATR settings if ATR was disabled */
4504         if ((changed_flags & I40E_FLAG_FD_ATR_ENABLED) &&
4505             !(pf->flags & I40E_FLAG_FD_ATR_ENABLED)) {
4506                 set_bit(__I40E_FD_ATR_AUTO_DISABLED, pf->state);
4507                 set_bit(__I40E_FD_FLUSH_REQUESTED, pf->state);
4508         }
4509
4510         if (changed_flags & I40E_FLAG_TRUE_PROMISC_SUPPORT) {
4511                 u16 sw_flags = 0, valid_flags = 0;
4512                 int ret;
4513
4514                 if (!(pf->flags & I40E_FLAG_TRUE_PROMISC_SUPPORT))
4515                         sw_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC;
4516                 valid_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC;
4517                 ret = i40e_aq_set_switch_config(&pf->hw, sw_flags, valid_flags,
4518                                                 0, NULL);
4519                 if (ret && pf->hw.aq.asq_last_status != I40E_AQ_RC_ESRCH) {
4520                         dev_info(&pf->pdev->dev,
4521                                  "couldn't set switch config bits, err %s aq_err %s\n",
4522                                  i40e_stat_str(&pf->hw, ret),
4523                                  i40e_aq_str(&pf->hw,
4524                                              pf->hw.aq.asq_last_status));
4525                         /* not a fatal problem, just keep going */
4526                 }
4527         }
4528
4529         if ((changed_flags & pf->flags &
4530              I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED) &&
4531             (pf->flags & I40E_FLAG_MFP_ENABLED))
4532                 dev_warn(&pf->pdev->dev,
4533                          "Turning on link-down-on-close flag may affect other partitions\n");
4534
4535         if (changed_flags & I40E_FLAG_DISABLE_FW_LLDP) {
4536                 if (pf->flags & I40E_FLAG_DISABLE_FW_LLDP) {
4537                         struct i40e_dcbx_config *dcbcfg;
4538                         int i;
4539
4540                         i40e_aq_stop_lldp(&pf->hw, true, NULL);
4541                         i40e_aq_set_dcb_parameters(&pf->hw, true, NULL);
4542                         /* reset local_dcbx_config to default */
4543                         dcbcfg = &pf->hw.local_dcbx_config;
4544                         dcbcfg->etscfg.willing = 1;
4545                         dcbcfg->etscfg.maxtcs = 0;
4546                         dcbcfg->etscfg.tcbwtable[0] = 100;
4547                         for (i = 1; i < I40E_MAX_TRAFFIC_CLASS; i++)
4548                                 dcbcfg->etscfg.tcbwtable[i] = 0;
4549                         for (i = 0; i < I40E_MAX_USER_PRIORITY; i++)
4550                                 dcbcfg->etscfg.prioritytable[i] = 0;
4551                         dcbcfg->etscfg.tsatable[0] = I40E_IEEE_TSA_ETS;
4552                         dcbcfg->pfc.willing = 1;
4553                         dcbcfg->pfc.pfccap = I40E_MAX_TRAFFIC_CLASS;
4554                 } else {
4555                         i40e_aq_start_lldp(&pf->hw, NULL);
4556                 }
4557         }
4558
4559         /* Issue reset to cause things to take effect, as additional bits
4560          * are added we will need to create a mask of bits requiring reset
4561          */
4562         if (changed_flags & (I40E_FLAG_VEB_STATS_ENABLED |
4563                              I40E_FLAG_LEGACY_RX |
4564                              I40E_FLAG_SOURCE_PRUNING_DISABLED |
4565                              I40E_FLAG_DISABLE_FW_LLDP))
4566                 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true);
4567
4568         return 0;
4569 }
4570
4571 /**
4572  * i40e_get_module_info - get (Q)SFP+ module type info
4573  * @netdev: network interface device structure
4574  * @modinfo: module EEPROM size and layout information structure
4575  **/
4576 static int i40e_get_module_info(struct net_device *netdev,
4577                                 struct ethtool_modinfo *modinfo)
4578 {
4579         struct i40e_netdev_priv *np = netdev_priv(netdev);
4580         struct i40e_vsi *vsi = np->vsi;
4581         struct i40e_pf *pf = vsi->back;
4582         struct i40e_hw *hw = &pf->hw;
4583         u32 sff8472_comp = 0;
4584         u32 sff8472_swap = 0;
4585         u32 sff8636_rev = 0;
4586         i40e_status status;
4587         u32 type = 0;
4588
4589         /* Check if firmware supports reading module EEPROM. */
4590         if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE)) {
4591                 netdev_err(vsi->netdev, "Module EEPROM memory read not supported. Please update the NVM image.\n");
4592                 return -EINVAL;
4593         }
4594
4595         status = i40e_update_link_info(hw);
4596         if (status)
4597                 return -EIO;
4598
4599         if (hw->phy.link_info.phy_type == I40E_PHY_TYPE_EMPTY) {
4600                 netdev_err(vsi->netdev, "Cannot read module EEPROM memory. No module connected.\n");
4601                 return -EINVAL;
4602         }
4603
4604         type = hw->phy.link_info.module_type[0];
4605
4606         switch (type) {
4607         case I40E_MODULE_TYPE_SFP:
4608                 status = i40e_aq_get_phy_register(hw,
4609                                 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE,
4610                                 I40E_I2C_EEPROM_DEV_ADDR,
4611                                 I40E_MODULE_SFF_8472_COMP,
4612                                 &sff8472_comp, NULL);
4613                 if (status)
4614                         return -EIO;
4615
4616                 status = i40e_aq_get_phy_register(hw,
4617                                 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE,
4618                                 I40E_I2C_EEPROM_DEV_ADDR,
4619                                 I40E_MODULE_SFF_8472_SWAP,
4620                                 &sff8472_swap, NULL);
4621                 if (status)
4622                         return -EIO;
4623
4624                 /* Check if the module requires address swap to access
4625                  * the other EEPROM memory page.
4626                  */
4627                 if (sff8472_swap & I40E_MODULE_SFF_ADDR_MODE) {
4628                         netdev_warn(vsi->netdev, "Module address swap to access page 0xA2 is not supported.\n");
4629                         modinfo->type = ETH_MODULE_SFF_8079;
4630                         modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
4631                 } else if (sff8472_comp == 0x00) {
4632                         /* Module is not SFF-8472 compliant */
4633                         modinfo->type = ETH_MODULE_SFF_8079;
4634                         modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
4635                 } else {
4636                         modinfo->type = ETH_MODULE_SFF_8472;
4637                         modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN;
4638                 }
4639                 break;
4640         case I40E_MODULE_TYPE_QSFP_PLUS:
4641                 /* Read from memory page 0. */
4642                 status = i40e_aq_get_phy_register(hw,
4643                                 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE,
4644                                 0,
4645                                 I40E_MODULE_REVISION_ADDR,
4646                                 &sff8636_rev, NULL);
4647                 if (status)
4648                         return -EIO;
4649                 /* Determine revision compliance byte */
4650                 if (sff8636_rev > 0x02) {
4651                         /* Module is SFF-8636 compliant */
4652                         modinfo->type = ETH_MODULE_SFF_8636;
4653                         modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN;
4654                 } else {
4655                         modinfo->type = ETH_MODULE_SFF_8436;
4656                         modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN;
4657                 }
4658                 break;
4659         case I40E_MODULE_TYPE_QSFP28:
4660                 modinfo->type = ETH_MODULE_SFF_8636;
4661                 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN;
4662                 break;
4663         default:
4664                 netdev_err(vsi->netdev, "Module type unrecognized\n");
4665                 return -EINVAL;
4666         }
4667         return 0;
4668 }
4669
4670 /**
4671  * i40e_get_module_eeprom - fills buffer with (Q)SFP+ module memory contents
4672  * @netdev: network interface device structure
4673  * @ee: EEPROM dump request structure
4674  * @data: buffer to be filled with EEPROM contents
4675  **/
4676 static int i40e_get_module_eeprom(struct net_device *netdev,
4677                                   struct ethtool_eeprom *ee,
4678                                   u8 *data)
4679 {
4680         struct i40e_netdev_priv *np = netdev_priv(netdev);
4681         struct i40e_vsi *vsi = np->vsi;
4682         struct i40e_pf *pf = vsi->back;
4683         struct i40e_hw *hw = &pf->hw;
4684         bool is_sfp = false;
4685         i40e_status status;
4686         u32 value = 0;
4687         int i;
4688
4689         if (!ee || !ee->len || !data)
4690                 return -EINVAL;
4691
4692         if (hw->phy.link_info.module_type[0] == I40E_MODULE_TYPE_SFP)
4693                 is_sfp = true;
4694
4695         for (i = 0; i < ee->len; i++) {
4696                 u32 offset = i + ee->offset;
4697                 u32 addr = is_sfp ? I40E_I2C_EEPROM_DEV_ADDR : 0;
4698
4699                 /* Check if we need to access the other memory page */
4700                 if (is_sfp) {
4701                         if (offset >= ETH_MODULE_SFF_8079_LEN) {
4702                                 offset -= ETH_MODULE_SFF_8079_LEN;
4703                                 addr = I40E_I2C_EEPROM_DEV_ADDR2;
4704                         }
4705                 } else {
4706                         while (offset >= ETH_MODULE_SFF_8436_LEN) {
4707                                 /* Compute memory page number and offset. */
4708                                 offset -= ETH_MODULE_SFF_8436_LEN / 2;
4709                                 addr++;
4710                         }
4711                 }
4712
4713                 status = i40e_aq_get_phy_register(hw,
4714                                 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE,
4715                                 addr, offset, &value, NULL);
4716                 if (status)
4717                         return -EIO;
4718                 data[i] = value;
4719         }
4720         return 0;
4721 }
4722
4723 static const struct ethtool_ops i40e_ethtool_ops = {
4724         .get_drvinfo            = i40e_get_drvinfo,
4725         .get_regs_len           = i40e_get_regs_len,
4726         .get_regs               = i40e_get_regs,
4727         .nway_reset             = i40e_nway_reset,
4728         .get_link               = ethtool_op_get_link,
4729         .get_wol                = i40e_get_wol,
4730         .set_wol                = i40e_set_wol,
4731         .set_eeprom             = i40e_set_eeprom,
4732         .get_eeprom_len         = i40e_get_eeprom_len,
4733         .get_eeprom             = i40e_get_eeprom,
4734         .get_ringparam          = i40e_get_ringparam,
4735         .set_ringparam          = i40e_set_ringparam,
4736         .get_pauseparam         = i40e_get_pauseparam,
4737         .set_pauseparam         = i40e_set_pauseparam,
4738         .get_msglevel           = i40e_get_msglevel,
4739         .set_msglevel           = i40e_set_msglevel,
4740         .get_rxnfc              = i40e_get_rxnfc,
4741         .set_rxnfc              = i40e_set_rxnfc,
4742         .self_test              = i40e_diag_test,
4743         .get_strings            = i40e_get_strings,
4744         .set_phys_id            = i40e_set_phys_id,
4745         .get_sset_count         = i40e_get_sset_count,
4746         .get_ethtool_stats      = i40e_get_ethtool_stats,
4747         .get_coalesce           = i40e_get_coalesce,
4748         .set_coalesce           = i40e_set_coalesce,
4749         .get_rxfh_key_size      = i40e_get_rxfh_key_size,
4750         .get_rxfh_indir_size    = i40e_get_rxfh_indir_size,
4751         .get_rxfh               = i40e_get_rxfh,
4752         .set_rxfh               = i40e_set_rxfh,
4753         .get_channels           = i40e_get_channels,
4754         .set_channels           = i40e_set_channels,
4755         .get_module_info        = i40e_get_module_info,
4756         .get_module_eeprom      = i40e_get_module_eeprom,
4757         .get_ts_info            = i40e_get_ts_info,
4758         .get_priv_flags         = i40e_get_priv_flags,
4759         .set_priv_flags         = i40e_set_priv_flags,
4760         .get_per_queue_coalesce = i40e_get_per_queue_coalesce,
4761         .set_per_queue_coalesce = i40e_set_per_queue_coalesce,
4762         .get_link_ksettings     = i40e_get_link_ksettings,
4763         .set_link_ksettings     = i40e_set_link_ksettings,
4764 };
4765
4766 void i40e_set_ethtool_ops(struct net_device *netdev)
4767 {
4768         netdev->ethtool_ops = &i40e_ethtool_ops;
4769 }