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         /* The stat_string is expected to be a format string formatted using
  11          * vsnprintf by i40e_add_stat_strings. Every member of a stats array
  12          * should use the same format specifiers as they will be formatted
  13          * using the same variadic arguments.
  14          */
  15         char stat_string[ETH_GSTRING_LEN];
  16         int sizeof_stat;
  17         int stat_offset;
  18 };
  19
  20 #define I40E_STAT(_type, _name, _stat) { \
  21         .stat_string = _name, \
  22         .sizeof_stat = FIELD_SIZEOF(_type, _stat), \
  23         .stat_offset = offsetof(_type, _stat) \
  24 }
  25
  26 #define I40E_NETDEV_STAT(_net_stat) \
  27         I40E_STAT(struct rtnl_link_stats64, #_net_stat, _net_stat)
  28 #define I40E_PF_STAT(_name, _stat) \
  29         I40E_STAT(struct i40e_pf, _name, _stat)
  30 #define I40E_VSI_STAT(_name, _stat) \
  31         I40E_STAT(struct i40e_vsi, _name, _stat)
  32 #define I40E_VEB_STAT(_name, _stat) \
  33         I40E_STAT(struct i40e_veb, _name, _stat)
  34 #define I40E_PFC_STAT(_name, _stat) \
  35         I40E_STAT(struct i40e_pfc_stats, _name, _stat)
  36
  37 static const struct i40e_stats i40e_gstrings_net_stats[] = {
  38         I40E_NETDEV_STAT(rx_packets),
  39         I40E_NETDEV_STAT(tx_packets),
  40         I40E_NETDEV_STAT(rx_bytes),
  41         I40E_NETDEV_STAT(tx_bytes),
  42         I40E_NETDEV_STAT(rx_errors),
  43         I40E_NETDEV_STAT(tx_errors),
  44         I40E_NETDEV_STAT(rx_dropped),
  45         I40E_NETDEV_STAT(tx_dropped),
  46         I40E_NETDEV_STAT(collisions),
  47         I40E_NETDEV_STAT(rx_length_errors),
  48         I40E_NETDEV_STAT(rx_crc_errors),
  49 };
  50
  51 static const struct i40e_stats i40e_gstrings_veb_stats[] = {
  52         I40E_VEB_STAT("veb.rx_bytes", stats.rx_bytes),
  53         I40E_VEB_STAT("veb.tx_bytes", stats.tx_bytes),
  54         I40E_VEB_STAT("veb.rx_unicast", stats.rx_unicast),
  55         I40E_VEB_STAT("veb.tx_unicast", stats.tx_unicast),
  56         I40E_VEB_STAT("veb.rx_multicast", stats.rx_multicast),
  57         I40E_VEB_STAT("veb.tx_multicast", stats.tx_multicast),
  58         I40E_VEB_STAT("veb.rx_broadcast", stats.rx_broadcast),
  59         I40E_VEB_STAT("veb.tx_broadcast", stats.tx_broadcast),
  60         I40E_VEB_STAT("veb.rx_discards", stats.rx_discards),
  61         I40E_VEB_STAT("veb.tx_discards", stats.tx_discards),
  62         I40E_VEB_STAT("veb.tx_errors", stats.tx_errors),
  63         I40E_VEB_STAT("veb.rx_unknown_protocol", stats.rx_unknown_protocol),
  64 };
  65
  66 static const struct i40e_stats i40e_gstrings_veb_tc_stats[] = {
  67         I40E_VEB_STAT("veb.tc_%u_tx_packets", tc_stats.tc_tx_packets),
  68         I40E_VEB_STAT("veb.tc_%u_tx_bytes", tc_stats.tc_tx_bytes),
  69         I40E_VEB_STAT("veb.tc_%u_rx_packets", tc_stats.tc_rx_packets),
  70         I40E_VEB_STAT("veb.tc_%u_rx_bytes", tc_stats.tc_rx_bytes),
  71 };
  72
  73 static const struct i40e_stats i40e_gstrings_misc_stats[] = {
  74         I40E_VSI_STAT("rx_unicast", eth_stats.rx_unicast),
  75         I40E_VSI_STAT("tx_unicast", eth_stats.tx_unicast),
  76         I40E_VSI_STAT("rx_multicast", eth_stats.rx_multicast),
  77         I40E_VSI_STAT("tx_multicast", eth_stats.tx_multicast),
  78         I40E_VSI_STAT("rx_broadcast", eth_stats.rx_broadcast),
  79         I40E_VSI_STAT("tx_broadcast", eth_stats.tx_broadcast),
  80         I40E_VSI_STAT("rx_unknown_protocol", eth_stats.rx_unknown_protocol),
  81         I40E_VSI_STAT("tx_linearize", tx_linearize),
  82         I40E_VSI_STAT("tx_force_wb", tx_force_wb),
  83         I40E_VSI_STAT("tx_busy", tx_busy),
  84         I40E_VSI_STAT("rx_alloc_fail", rx_buf_failed),
  85         I40E_VSI_STAT("rx_pg_alloc_fail", rx_page_failed),
  86 };
  87
  88 /* These PF_STATs might look like duplicates of some NETDEV_STATs,
  89  * but they are separate.  This device supports Virtualization, and
  90  * as such might have several netdevs supporting VMDq and FCoE going
  91  * through a single port.  The NETDEV_STATs are for individual netdevs
  92  * seen at the top of the stack, and the PF_STATs are for the physical
  93  * function at the bottom of the stack hosting those netdevs.
  94  *
  95  * The PF_STATs are appended to the netdev stats only when ethtool -S
  96  * is queried on the base PF netdev, not on the VMDq or FCoE netdev.
  97  */
  98 static const struct i40e_stats i40e_gstrings_stats[] = {
  99         I40E_PF_STAT("port.rx_bytes", stats.eth.rx_bytes),
 100         I40E_PF_STAT("port.tx_bytes", stats.eth.tx_bytes),
 101         I40E_PF_STAT("port.rx_unicast", stats.eth.rx_unicast),
 102         I40E_PF_STAT("port.tx_unicast", stats.eth.tx_unicast),
 103         I40E_PF_STAT("port.rx_multicast", stats.eth.rx_multicast),
 104         I40E_PF_STAT("port.tx_multicast", stats.eth.tx_multicast),
 105         I40E_PF_STAT("port.rx_broadcast", stats.eth.rx_broadcast),
 106         I40E_PF_STAT("port.tx_broadcast", stats.eth.tx_broadcast),
 107         I40E_PF_STAT("port.tx_errors", stats.eth.tx_errors),
 108         I40E_PF_STAT("port.rx_dropped", stats.eth.rx_discards),
 109         I40E_PF_STAT("port.tx_dropped_link_down", stats.tx_dropped_link_down),
 110         I40E_PF_STAT("port.rx_crc_errors", stats.crc_errors),
 111         I40E_PF_STAT("port.illegal_bytes", stats.illegal_bytes),
 112         I40E_PF_STAT("port.mac_local_faults", stats.mac_local_faults),
 113         I40E_PF_STAT("port.mac_remote_faults", stats.mac_remote_faults),
 114         I40E_PF_STAT("port.tx_timeout", tx_timeout_count),
 115         I40E_PF_STAT("port.rx_csum_bad", hw_csum_rx_error),
 116         I40E_PF_STAT("port.rx_length_errors", stats.rx_length_errors),
 117         I40E_PF_STAT("port.link_xon_rx", stats.link_xon_rx),
 118         I40E_PF_STAT("port.link_xoff_rx", stats.link_xoff_rx),
 119         I40E_PF_STAT("port.link_xon_tx", stats.link_xon_tx),
 120         I40E_PF_STAT("port.link_xoff_tx", stats.link_xoff_tx),
 121         I40E_PF_STAT("port.rx_size_64", stats.rx_size_64),
 122         I40E_PF_STAT("port.rx_size_127", stats.rx_size_127),
 123         I40E_PF_STAT("port.rx_size_255", stats.rx_size_255),
 124         I40E_PF_STAT("port.rx_size_511", stats.rx_size_511),
 125         I40E_PF_STAT("port.rx_size_1023", stats.rx_size_1023),
 126         I40E_PF_STAT("port.rx_size_1522", stats.rx_size_1522),
 127         I40E_PF_STAT("port.rx_size_big", stats.rx_size_big),
 128         I40E_PF_STAT("port.tx_size_64", stats.tx_size_64),
 129         I40E_PF_STAT("port.tx_size_127", stats.tx_size_127),
 130         I40E_PF_STAT("port.tx_size_255", stats.tx_size_255),
 131         I40E_PF_STAT("port.tx_size_511", stats.tx_size_511),
 132         I40E_PF_STAT("port.tx_size_1023", stats.tx_size_1023),
 133         I40E_PF_STAT("port.tx_size_1522", stats.tx_size_1522),
 134         I40E_PF_STAT("port.tx_size_big", stats.tx_size_big),
 135         I40E_PF_STAT("port.rx_undersize", stats.rx_undersize),
 136         I40E_PF_STAT("port.rx_fragments", stats.rx_fragments),
 137         I40E_PF_STAT("port.rx_oversize", stats.rx_oversize),
 138         I40E_PF_STAT("port.rx_jabber", stats.rx_jabber),
 139         I40E_PF_STAT("port.VF_admin_queue_requests", vf_aq_requests),
 140         I40E_PF_STAT("port.arq_overflows", arq_overflows),
 141         I40E_PF_STAT("port.tx_hwtstamp_timeouts", tx_hwtstamp_timeouts),
 142         I40E_PF_STAT("port.rx_hwtstamp_cleared", rx_hwtstamp_cleared),
 143         I40E_PF_STAT("port.tx_hwtstamp_skipped", tx_hwtstamp_skipped),
 144         I40E_PF_STAT("port.fdir_flush_cnt", fd_flush_cnt),
 145         I40E_PF_STAT("port.fdir_atr_match", stats.fd_atr_match),
 146         I40E_PF_STAT("port.fdir_atr_tunnel_match", stats.fd_atr_tunnel_match),
 147         I40E_PF_STAT("port.fdir_atr_status", stats.fd_atr_status),
 148         I40E_PF_STAT("port.fdir_sb_match", stats.fd_sb_match),
 149         I40E_PF_STAT("port.fdir_sb_status", stats.fd_sb_status),
 150
 151         /* LPI stats */
 152         I40E_PF_STAT("port.tx_lpi_status", stats.tx_lpi_status),
 153         I40E_PF_STAT("port.rx_lpi_status", stats.rx_lpi_status),
 154         I40E_PF_STAT("port.tx_lpi_count", stats.tx_lpi_count),
 155         I40E_PF_STAT("port.rx_lpi_count", stats.rx_lpi_count),
 156 };
 157
 158 struct i40e_pfc_stats {
 159         u64 priority_xon_rx;
 160         u64 priority_xoff_rx;
 161         u64 priority_xon_tx;
 162         u64 priority_xoff_tx;
 163         u64 priority_xon_2_xoff;
 164 };
 165
 166 static const struct i40e_stats i40e_gstrings_pfc_stats[] = {
 167         I40E_PFC_STAT("port.tx_priority_%u_xon_tx", priority_xon_tx),
 168         I40E_PFC_STAT("port.tx_priority_%u_xoff_tx", priority_xoff_tx),
 169         I40E_PFC_STAT("port.rx_priority_%u_xon_rx", priority_xon_rx),
 170         I40E_PFC_STAT("port.rx_priority_%u_xoff_rx", priority_xoff_rx),
 171         I40E_PFC_STAT("port.rx_priority_%u_xon_2_xoff", priority_xon_2_xoff),
 172 };
 173
 174 /* We use num_tx_queues here as a proxy for the maximum number of queues
 175  * available because we always allocate queues symmetrically.
 176  */
 177 #define I40E_MAX_NUM_QUEUES(n) ((n)->num_tx_queues)
 178 #define I40E_QUEUE_STATS_LEN(n)                                              \
 179            (I40E_MAX_NUM_QUEUES(n)                                           \
 180             * 2 /* Tx and Rx together */                                     \
 181             * (sizeof(struct i40e_queue_stats) / sizeof(u64)))
 182 #define I40E_GLOBAL_STATS_LEN   ARRAY_SIZE(i40e_gstrings_stats)
 183 #define I40E_NETDEV_STATS_LEN   ARRAY_SIZE(i40e_gstrings_net_stats)
 184 #define I40E_MISC_STATS_LEN     ARRAY_SIZE(i40e_gstrings_misc_stats)
 185 #define I40E_VSI_STATS_LEN(n)   (I40E_NETDEV_STATS_LEN + \
 186                                  I40E_MISC_STATS_LEN + \
 187                                  I40E_QUEUE_STATS_LEN((n)))
 188
 189 #define I40E_PFC_STATS_LEN      (ARRAY_SIZE(i40e_gstrings_pfc_stats) * \
 190                                  I40E_MAX_USER_PRIORITY)
 191
 192 #define I40E_VEB_STATS_LEN      (ARRAY_SIZE(i40e_gstrings_veb_stats) + \
 193                                  (ARRAY_SIZE(i40e_gstrings_veb_tc_stats) * \
 194                                   I40E_MAX_TRAFFIC_CLASS))
 195
 196 #define I40E_PF_STATS_LEN(n)    (I40E_GLOBAL_STATS_LEN + \
 197                                  I40E_PFC_STATS_LEN + \
 198                                  I40E_VEB_STATS_LEN + \
 199                                  I40E_VSI_STATS_LEN((n)))
 200
 201 enum i40e_ethtool_test_id {
 202         I40E_ETH_TEST_REG = 0,
 203         I40E_ETH_TEST_EEPROM,
 204         I40E_ETH_TEST_INTR,
 205         I40E_ETH_TEST_LINK,
 206 };
 207
 208 static const char i40e_gstrings_test[][ETH_GSTRING_LEN] = {
 209         "Register test  (offline)",
 210         "Eeprom test    (offline)",
 211         "Interrupt test (offline)",
 212         "Link test   (on/offline)"
 213 };
 214
 215 #define I40E_TEST_LEN (sizeof(i40e_gstrings_test) / ETH_GSTRING_LEN)
 216
 217 struct i40e_priv_flags {
 218         char flag_string[ETH_GSTRING_LEN];
 219         u64 flag;
 220         bool read_only;
 221 };
 222
 223 #define I40E_PRIV_FLAG(_name, _flag, _read_only) { \
 224         .flag_string = _name, \
 225         .flag = _flag, \
 226         .read_only = _read_only, \
 227 }
 228
 229 static const struct i40e_priv_flags i40e_gstrings_priv_flags[] = {
 230         /* NOTE: MFP setting cannot be changed */
 231         I40E_PRIV_FLAG("MFP", I40E_FLAG_MFP_ENABLED, 1),
 232         I40E_PRIV_FLAG("LinkPolling", I40E_FLAG_LINK_POLLING_ENABLED, 0),
 233         I40E_PRIV_FLAG("flow-director-atr", I40E_FLAG_FD_ATR_ENABLED, 0),
 234         I40E_PRIV_FLAG("veb-stats", I40E_FLAG_VEB_STATS_ENABLED, 0),
 235         I40E_PRIV_FLAG("hw-atr-eviction", I40E_FLAG_HW_ATR_EVICT_ENABLED, 0),
 236         I40E_PRIV_FLAG("link-down-on-close",
 237                        I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED, 0),
 238         I40E_PRIV_FLAG("legacy-rx", I40E_FLAG_LEGACY_RX, 0),
 239         I40E_PRIV_FLAG("disable-source-pruning",
 240                        I40E_FLAG_SOURCE_PRUNING_DISABLED, 0),
 241         I40E_PRIV_FLAG("disable-fw-lldp", I40E_FLAG_DISABLE_FW_LLDP, 0),
 242 };
 243
 244 #define I40E_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_gstrings_priv_flags)
 245
 246 /* Private flags with a global effect, restricted to PF 0 */
 247 static const struct i40e_priv_flags i40e_gl_gstrings_priv_flags[] = {
 248         I40E_PRIV_FLAG("vf-true-promisc-support",
 249                        I40E_FLAG_TRUE_PROMISC_SUPPORT, 0),
 250 };
 251
 252 #define I40E_GL_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_gl_gstrings_priv_flags)
 253
 254 /**
 255  * i40e_partition_setting_complaint - generic complaint for MFP restriction
 256  * @pf: the PF struct
 257  **/
 258 static void i40e_partition_setting_complaint(struct i40e_pf *pf)
 259 {
 260         dev_info(&pf->pdev->dev,
 261                  "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");
 262 }
 263
 264 /**
 265  * i40e_phy_type_to_ethtool - convert the phy_types to ethtool link modes
 266  * @pf: PF struct with phy_types
 267  * @ks: ethtool link ksettings struct to fill out
 268  *
 269  **/
 270 static void i40e_phy_type_to_ethtool(struct i40e_pf *pf,
 271                                      struct ethtool_link_ksettings *ks)
 272 {
 273         struct i40e_link_status *hw_link_info = &pf->hw.phy.link_info;
 274         u64 phy_types = pf->hw.phy.phy_types;
 275
 276         ethtool_link_ksettings_zero_link_mode(ks, supported);
 277         ethtool_link_ksettings_zero_link_mode(ks, advertising);
 278
 279         if (phy_types & I40E_CAP_PHY_TYPE_SGMII) {
 280                 ethtool_link_ksettings_add_link_mode(ks, supported,
 281                                                      1000baseT_Full);
 282                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 283                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 284                                                              1000baseT_Full);
 285                 if (pf->hw_features & I40E_HW_100M_SGMII_CAPABLE) {
 286                         ethtool_link_ksettings_add_link_mode(ks, supported,
 287                                                              100baseT_Full);
 288                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 289                                                              100baseT_Full);
 290                 }
 291         }
 292         if (phy_types & I40E_CAP_PHY_TYPE_XAUI ||
 293             phy_types & I40E_CAP_PHY_TYPE_XFI ||
 294             phy_types & I40E_CAP_PHY_TYPE_SFI ||
 295             phy_types & I40E_CAP_PHY_TYPE_10GBASE_SFPP_CU ||
 296             phy_types & I40E_CAP_PHY_TYPE_10GBASE_AOC) {
 297                 ethtool_link_ksettings_add_link_mode(ks, supported,
 298                                                      10000baseT_Full);
 299                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 300                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 301                                                              10000baseT_Full);
 302         }
 303         if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_T) {
 304                 ethtool_link_ksettings_add_link_mode(ks, supported,
 305                                                      10000baseT_Full);
 306                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 307                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 308                                                              10000baseT_Full);
 309         }
 310         if (phy_types & I40E_CAP_PHY_TYPE_XLAUI ||
 311             phy_types & I40E_CAP_PHY_TYPE_XLPPI ||
 312             phy_types & I40E_CAP_PHY_TYPE_40GBASE_AOC)
 313                 ethtool_link_ksettings_add_link_mode(ks, supported,
 314                                                      40000baseCR4_Full);
 315         if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4_CU ||
 316             phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4) {
 317                 ethtool_link_ksettings_add_link_mode(ks, supported,
 318                                                      40000baseCR4_Full);
 319                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_40GB)
 320                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 321                                                              40000baseCR4_Full);
 322         }
 323         if (phy_types & I40E_CAP_PHY_TYPE_100BASE_TX) {
 324                 ethtool_link_ksettings_add_link_mode(ks, supported,
 325                                                      100baseT_Full);
 326                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB)
 327                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 328                                                              100baseT_Full);
 329         }
 330         if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_T) {
 331                 ethtool_link_ksettings_add_link_mode(ks, supported,
 332                                                      1000baseT_Full);
 333                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 334                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 335                                                              1000baseT_Full);
 336         }
 337         if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_SR4)
 338                 ethtool_link_ksettings_add_link_mode(ks, supported,
 339                                                      40000baseSR4_Full);
 340         if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_LR4)
 341                 ethtool_link_ksettings_add_link_mode(ks, supported,
 342                                                      40000baseLR4_Full);
 343         if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_KR4) {
 344                 ethtool_link_ksettings_add_link_mode(ks, supported,
 345                                                      40000baseLR4_Full);
 346                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 347                                                      40000baseLR4_Full);
 348         }
 349         if (phy_types & I40E_CAP_PHY_TYPE_20GBASE_KR2) {
 350                 ethtool_link_ksettings_add_link_mode(ks, supported,
 351                                                      20000baseKR2_Full);
 352                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_20GB)
 353                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 354                                                              20000baseKR2_Full);
 355         }
 356         if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4) {
 357                 ethtool_link_ksettings_add_link_mode(ks, supported,
 358                                                      10000baseKX4_Full);
 359                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 360                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 361                                                              10000baseKX4_Full);
 362         }
 363         if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KR &&
 364             !(pf->hw_features & I40E_HW_HAVE_CRT_RETIMER)) {
 365                 ethtool_link_ksettings_add_link_mode(ks, supported,
 366                                                      10000baseKR_Full);
 367                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 368                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 369                                                              10000baseKR_Full);
 370         }
 371         if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_KX &&
 372             !(pf->hw_features & I40E_HW_HAVE_CRT_RETIMER)) {
 373                 ethtool_link_ksettings_add_link_mode(ks, supported,
 374                                                      1000baseKX_Full);
 375                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 376                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 377                                                              1000baseKX_Full);
 378         }
 379         /* need to add 25G PHY types */
 380         if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR) {
 381                 ethtool_link_ksettings_add_link_mode(ks, supported,
 382                                                      25000baseKR_Full);
 383                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB)
 384                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 385                                                              25000baseKR_Full);
 386         }
 387         if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR) {
 388                 ethtool_link_ksettings_add_link_mode(ks, supported,
 389                                                      25000baseCR_Full);
 390                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB)
 391                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 392                                                              25000baseCR_Full);
 393         }
 394         if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR ||
 395             phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR) {
 396                 ethtool_link_ksettings_add_link_mode(ks, supported,
 397                                                      25000baseSR_Full);
 398                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB)
 399                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 400                                                              25000baseSR_Full);
 401         }
 402         if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_AOC ||
 403             phy_types & I40E_CAP_PHY_TYPE_25GBASE_ACC) {
 404                 ethtool_link_ksettings_add_link_mode(ks, supported,
 405                                                      25000baseCR_Full);
 406                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB)
 407                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 408                                                              25000baseCR_Full);
 409         }
 410         /* need to add new 10G PHY types */
 411         if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1 ||
 412             phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1_CU) {
 413                 ethtool_link_ksettings_add_link_mode(ks, supported,
 414                                                      10000baseCR_Full);
 415                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 416                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 417                                                              10000baseCR_Full);
 418         }
 419         if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_SR) {
 420                 ethtool_link_ksettings_add_link_mode(ks, supported,
 421                                                      10000baseSR_Full);
 422                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 423                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 424                                                              10000baseSR_Full);
 425         }
 426         if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_LR) {
 427                 ethtool_link_ksettings_add_link_mode(ks, supported,
 428                                                      10000baseLR_Full);
 429                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 430                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 431                                                              10000baseLR_Full);
 432         }
 433         if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_SX ||
 434             phy_types & I40E_CAP_PHY_TYPE_1000BASE_LX ||
 435             phy_types & I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL) {
 436                 ethtool_link_ksettings_add_link_mode(ks, supported,
 437                                                      1000baseX_Full);
 438                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 439                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 440                                                              1000baseX_Full);
 441         }
 442         /* Autoneg PHY types */
 443         if (phy_types & I40E_CAP_PHY_TYPE_SGMII ||
 444             phy_types & I40E_CAP_PHY_TYPE_40GBASE_KR4 ||
 445             phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4_CU ||
 446             phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4 ||
 447             phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR ||
 448             phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR ||
 449             phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR ||
 450             phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR ||
 451             phy_types & I40E_CAP_PHY_TYPE_20GBASE_KR2 ||
 452             phy_types & I40E_CAP_PHY_TYPE_10GBASE_T ||
 453             phy_types & I40E_CAP_PHY_TYPE_10GBASE_SR ||
 454             phy_types & I40E_CAP_PHY_TYPE_10GBASE_LR ||
 455             phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4 ||
 456             phy_types & I40E_CAP_PHY_TYPE_10GBASE_KR ||
 457             phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1_CU ||
 458             phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1 ||
 459             phy_types & I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL ||
 460             phy_types & I40E_CAP_PHY_TYPE_1000BASE_T ||
 461             phy_types & I40E_CAP_PHY_TYPE_1000BASE_SX ||
 462             phy_types & I40E_CAP_PHY_TYPE_1000BASE_LX ||
 463             phy_types & I40E_CAP_PHY_TYPE_1000BASE_KX ||
 464             phy_types & I40E_CAP_PHY_TYPE_100BASE_TX) {
 465                 ethtool_link_ksettings_add_link_mode(ks, supported,
 466                                                      Autoneg);
 467                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 468                                                      Autoneg);
 469         }
 470 }
 471
 472 /**
 473  * i40e_get_settings_link_up - Get the Link settings for when link is up
 474  * @hw: hw structure
 475  * @ks: ethtool ksettings to fill in
 476  * @netdev: network interface device structure
 477  * @pf: pointer to physical function struct
 478  **/
 479 static void i40e_get_settings_link_up(struct i40e_hw *hw,
 480                                       struct ethtool_link_ksettings *ks,
 481                                       struct net_device *netdev,
 482                                       struct i40e_pf *pf)
 483 {
 484         struct i40e_link_status *hw_link_info = &hw->phy.link_info;
 485         struct ethtool_link_ksettings cap_ksettings;
 486         u32 link_speed = hw_link_info->link_speed;
 487
 488         /* Initialize supported and advertised settings based on phy settings */
 489         switch (hw_link_info->phy_type) {
 490         case I40E_PHY_TYPE_40GBASE_CR4:
 491         case I40E_PHY_TYPE_40GBASE_CR4_CU:
 492                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 493                 ethtool_link_ksettings_add_link_mode(ks, supported,
 494                                                      40000baseCR4_Full);
 495                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 496                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 497                                                      40000baseCR4_Full);
 498                 break;
 499         case I40E_PHY_TYPE_XLAUI:
 500         case I40E_PHY_TYPE_XLPPI:
 501         case I40E_PHY_TYPE_40GBASE_AOC:
 502                 ethtool_link_ksettings_add_link_mode(ks, supported,
 503                                                      40000baseCR4_Full);
 504                 break;
 505         case I40E_PHY_TYPE_40GBASE_SR4:
 506                 ethtool_link_ksettings_add_link_mode(ks, supported,
 507                                                      40000baseSR4_Full);
 508                 break;
 509         case I40E_PHY_TYPE_40GBASE_LR4:
 510                 ethtool_link_ksettings_add_link_mode(ks, supported,
 511                                                      40000baseLR4_Full);
 512                 break;
 513         case I40E_PHY_TYPE_25GBASE_SR:
 514         case I40E_PHY_TYPE_25GBASE_LR:
 515         case I40E_PHY_TYPE_10GBASE_SR:
 516         case I40E_PHY_TYPE_10GBASE_LR:
 517         case I40E_PHY_TYPE_1000BASE_SX:
 518         case I40E_PHY_TYPE_1000BASE_LX:
 519                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 520                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 521                 ethtool_link_ksettings_add_link_mode(ks, supported,
 522                                                      25000baseSR_Full);
 523                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 524                                                      25000baseSR_Full);
 525                 ethtool_link_ksettings_add_link_mode(ks, supported,
 526                                                      10000baseSR_Full);
 527                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 528                                                      10000baseSR_Full);
 529                 ethtool_link_ksettings_add_link_mode(ks, supported,
 530                                                      10000baseLR_Full);
 531                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 532                                                      10000baseLR_Full);
 533                 ethtool_link_ksettings_add_link_mode(ks, supported,
 534                                                      1000baseX_Full);
 535                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 536                                                      1000baseX_Full);
 537                 ethtool_link_ksettings_add_link_mode(ks, supported,
 538                                                      10000baseT_Full);
 539                 if (hw_link_info->module_type[2] &
 540                     I40E_MODULE_TYPE_1000BASE_SX ||
 541                     hw_link_info->module_type[2] &
 542                     I40E_MODULE_TYPE_1000BASE_LX) {
 543                         ethtool_link_ksettings_add_link_mode(ks, supported,
 544                                                              1000baseT_Full);
 545                         if (hw_link_info->requested_speeds &
 546                             I40E_LINK_SPEED_1GB)
 547                                 ethtool_link_ksettings_add_link_mode(
 548                                      ks, advertising, 1000baseT_Full);
 549                 }
 550                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 551                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 552                                                              10000baseT_Full);
 553                 break;
 554         case I40E_PHY_TYPE_10GBASE_T:
 555         case I40E_PHY_TYPE_1000BASE_T:
 556         case I40E_PHY_TYPE_100BASE_TX:
 557                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 558                 ethtool_link_ksettings_add_link_mode(ks, supported,
 559                                                      10000baseT_Full);
 560                 ethtool_link_ksettings_add_link_mode(ks, supported,
 561                                                      1000baseT_Full);
 562                 ethtool_link_ksettings_add_link_mode(ks, supported,
 563                                                      100baseT_Full);
 564                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 565                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 566                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 567                                                              10000baseT_Full);
 568                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 569                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 570                                                              1000baseT_Full);
 571                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB)
 572                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 573                                                              100baseT_Full);
 574                 break;
 575         case I40E_PHY_TYPE_1000BASE_T_OPTICAL:
 576                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 577                 ethtool_link_ksettings_add_link_mode(ks, supported,
 578                                                      1000baseT_Full);
 579                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 580                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 581                                                      1000baseT_Full);
 582                 break;
 583         case I40E_PHY_TYPE_10GBASE_CR1_CU:
 584         case I40E_PHY_TYPE_10GBASE_CR1:
 585                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 586                 ethtool_link_ksettings_add_link_mode(ks, supported,
 587                                                      10000baseT_Full);
 588                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 589                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 590                                                      10000baseT_Full);
 591                 break;
 592         case I40E_PHY_TYPE_XAUI:
 593         case I40E_PHY_TYPE_XFI:
 594         case I40E_PHY_TYPE_SFI:
 595         case I40E_PHY_TYPE_10GBASE_SFPP_CU:
 596         case I40E_PHY_TYPE_10GBASE_AOC:
 597                 ethtool_link_ksettings_add_link_mode(ks, supported,
 598                                                      10000baseT_Full);
 599                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 600                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 601                                                              10000baseT_Full);
 602                 break;
 603         case I40E_PHY_TYPE_SGMII:
 604                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 605                 ethtool_link_ksettings_add_link_mode(ks, supported,
 606                                                      1000baseT_Full);
 607                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 608                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 609                                                              1000baseT_Full);
 610                 if (pf->hw_features & I40E_HW_100M_SGMII_CAPABLE) {
 611                         ethtool_link_ksettings_add_link_mode(ks, supported,
 612                                                              100baseT_Full);
 613                         if (hw_link_info->requested_speeds &
 614                             I40E_LINK_SPEED_100MB)
 615                                 ethtool_link_ksettings_add_link_mode(
 616                                       ks, advertising, 100baseT_Full);
 617                 }
 618                 break;
 619         case I40E_PHY_TYPE_40GBASE_KR4:
 620         case I40E_PHY_TYPE_25GBASE_KR:
 621         case I40E_PHY_TYPE_20GBASE_KR2:
 622         case I40E_PHY_TYPE_10GBASE_KR:
 623         case I40E_PHY_TYPE_10GBASE_KX4:
 624         case I40E_PHY_TYPE_1000BASE_KX:
 625                 ethtool_link_ksettings_add_link_mode(ks, supported,
 626                                                      40000baseKR4_Full);
 627                 ethtool_link_ksettings_add_link_mode(ks, supported,
 628                                                      25000baseKR_Full);
 629                 ethtool_link_ksettings_add_link_mode(ks, supported,
 630                                                      20000baseKR2_Full);
 631                 ethtool_link_ksettings_add_link_mode(ks, supported,
 632                                                      10000baseKR_Full);
 633                 ethtool_link_ksettings_add_link_mode(ks, supported,
 634                                                      10000baseKX4_Full);
 635                 ethtool_link_ksettings_add_link_mode(ks, supported,
 636                                                      1000baseKX_Full);
 637                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 638                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 639                                                      40000baseKR4_Full);
 640                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 641                                                      25000baseKR_Full);
 642                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 643                                                      20000baseKR2_Full);
 644                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 645                                                      10000baseKR_Full);
 646                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 647                                                      10000baseKX4_Full);
 648                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 649                                                      1000baseKX_Full);
 650                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 651                 break;
 652         case I40E_PHY_TYPE_25GBASE_CR:
 653                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 654                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 655                 ethtool_link_ksettings_add_link_mode(ks, supported,
 656                                                      25000baseCR_Full);
 657                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 658                                                      25000baseCR_Full);
 659                 break;
 660         case I40E_PHY_TYPE_25GBASE_AOC:
 661         case I40E_PHY_TYPE_25GBASE_ACC:
 662                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 663                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 664                 ethtool_link_ksettings_add_link_mode(ks, supported,
 665                                                      25000baseCR_Full);
 666
 667                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 668                                                      25000baseCR_Full);
 669                 ethtool_link_ksettings_add_link_mode(ks, supported,
 670                                                      10000baseCR_Full);
 671                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 672                                                      10000baseCR_Full);
 673                 break;
 674         default:
 675                 /* if we got here and link is up something bad is afoot */
 676                 netdev_info(netdev,
 677                             "WARNING: Link is up but PHY type 0x%x is not recognized.\n",
 678                             hw_link_info->phy_type);
 679         }
 680
 681         /* Now that we've worked out everything that could be supported by the
 682          * current PHY type, get what is supported by the NVM and intersect
 683          * them to get what is truly supported
 684          */
 685         memset(&cap_ksettings, 0, sizeof(struct ethtool_link_ksettings));
 686         i40e_phy_type_to_ethtool(pf, &cap_ksettings);
 687         ethtool_intersect_link_masks(ks, &cap_ksettings);
 688
 689         /* Set speed and duplex */
 690         switch (link_speed) {
 691         case I40E_LINK_SPEED_40GB:
 692                 ks->base.speed = SPEED_40000;
 693                 break;
 694         case I40E_LINK_SPEED_25GB:
 695                 ks->base.speed = SPEED_25000;
 696                 break;
 697         case I40E_LINK_SPEED_20GB:
 698                 ks->base.speed = SPEED_20000;
 699                 break;
 700         case I40E_LINK_SPEED_10GB:
 701                 ks->base.speed = SPEED_10000;
 702                 break;
 703         case I40E_LINK_SPEED_1GB:
 704                 ks->base.speed = SPEED_1000;
 705                 break;
 706         case I40E_LINK_SPEED_100MB:
 707                 ks->base.speed = SPEED_100;
 708                 break;
 709         default:
 710                 break;
 711         }
 712         ks->base.duplex = DUPLEX_FULL;
 713 }
 714
 715 /**
 716  * i40e_get_settings_link_down - Get the Link settings for when link is down
 717  * @hw: hw structure
 718  * @ks: ethtool ksettings to fill in
 719  * @pf: pointer to physical function struct
 720  *
 721  * Reports link settings that can be determined when link is down
 722  **/
 723 static void i40e_get_settings_link_down(struct i40e_hw *hw,
 724                                         struct ethtool_link_ksettings *ks,
 725                                         struct i40e_pf *pf)
 726 {
 727         /* link is down and the driver needs to fall back on
 728          * supported phy types to figure out what info to display
 729          */
 730         i40e_phy_type_to_ethtool(pf, ks);
 731
 732         /* With no link speed and duplex are unknown */
 733         ks->base.speed = SPEED_UNKNOWN;
 734         ks->base.duplex = DUPLEX_UNKNOWN;
 735 }
 736
 737 /**
 738  * i40e_get_link_ksettings - Get Link Speed and Duplex settings
 739  * @netdev: network interface device structure
 740  * @ks: ethtool ksettings
 741  *
 742  * Reports speed/duplex settings based on media_type
 743  **/
 744 static int i40e_get_link_ksettings(struct net_device *netdev,
 745                                    struct ethtool_link_ksettings *ks)
 746 {
 747         struct i40e_netdev_priv *np = netdev_priv(netdev);
 748         struct i40e_pf *pf = np->vsi->back;
 749         struct i40e_hw *hw = &pf->hw;
 750         struct i40e_link_status *hw_link_info = &hw->phy.link_info;
 751         bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP;
 752
 753         ethtool_link_ksettings_zero_link_mode(ks, supported);
 754         ethtool_link_ksettings_zero_link_mode(ks, advertising);
 755
 756         if (link_up)
 757                 i40e_get_settings_link_up(hw, ks, netdev, pf);
 758         else
 759                 i40e_get_settings_link_down(hw, ks, pf);
 760
 761         /* Now set the settings that don't rely on link being up/down */
 762         /* Set autoneg settings */
 763         ks->base.autoneg = ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
 764                             AUTONEG_ENABLE : AUTONEG_DISABLE);
 765
 766         /* Set media type settings */
 767         switch (hw->phy.media_type) {
 768         case I40E_MEDIA_TYPE_BACKPLANE:
 769                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 770                 ethtool_link_ksettings_add_link_mode(ks, supported, Backplane);
 771                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 772                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 773                                                      Backplane);
 774                 ks->base.port = PORT_NONE;
 775                 break;
 776         case I40E_MEDIA_TYPE_BASET:
 777                 ethtool_link_ksettings_add_link_mode(ks, supported, TP);
 778                 ethtool_link_ksettings_add_link_mode(ks, advertising, TP);
 779                 ks->base.port = PORT_TP;
 780                 break;
 781         case I40E_MEDIA_TYPE_DA:
 782         case I40E_MEDIA_TYPE_CX4:
 783                 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE);
 784                 ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE);
 785                 ks->base.port = PORT_DA;
 786                 break;
 787         case I40E_MEDIA_TYPE_FIBER:
 788                 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE);
 789                 ks->base.port = PORT_FIBRE;
 790                 break;
 791         case I40E_MEDIA_TYPE_UNKNOWN:
 792         default:
 793                 ks->base.port = PORT_OTHER;
 794                 break;
 795         }
 796
 797         /* Set flow control settings */
 798         ethtool_link_ksettings_add_link_mode(ks, supported, Pause);
 799
 800         switch (hw->fc.requested_mode) {
 801         case I40E_FC_FULL:
 802                 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause);
 803                 break;
 804         case I40E_FC_TX_PAUSE:
 805                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 806                                                      Asym_Pause);
 807                 break;
 808         case I40E_FC_RX_PAUSE:
 809                 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause);
 810                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 811                                                      Asym_Pause);
 812                 break;
 813         default:
 814                 ethtool_link_ksettings_del_link_mode(ks, advertising, Pause);
 815                 ethtool_link_ksettings_del_link_mode(ks, advertising,
 816                                                      Asym_Pause);
 817                 break;
 818         }
 819
 820         return 0;
 821 }
 822
 823 /**
 824  * i40e_set_link_ksettings - Set Speed and Duplex
 825  * @netdev: network interface device structure
 826  * @ks: ethtool ksettings
 827  *
 828  * Set speed/duplex per media_types advertised/forced
 829  **/
 830 static int i40e_set_link_ksettings(struct net_device *netdev,
 831                                    const struct ethtool_link_ksettings *ks)
 832 {
 833         struct i40e_netdev_priv *np = netdev_priv(netdev);
 834         struct i40e_aq_get_phy_abilities_resp abilities;
 835         struct ethtool_link_ksettings safe_ks;
 836         struct ethtool_link_ksettings copy_ks;
 837         struct i40e_aq_set_phy_config config;
 838         struct i40e_pf *pf = np->vsi->back;
 839         struct i40e_vsi *vsi = np->vsi;
 840         struct i40e_hw *hw = &pf->hw;
 841         bool autoneg_changed = false;
 842         i40e_status status = 0;
 843         int timeout = 50;
 844         int err = 0;
 845         u8 autoneg;
 846
 847         /* Changing port settings is not supported if this isn't the
 848          * port's controlling PF
 849          */
 850         if (hw->partition_id != 1) {
 851                 i40e_partition_setting_complaint(pf);
 852                 return -EOPNOTSUPP;
 853         }
 854         if (vsi != pf->vsi[pf->lan_vsi])
 855                 return -EOPNOTSUPP;
 856         if (hw->phy.media_type != I40E_MEDIA_TYPE_BASET &&
 857             hw->phy.media_type != I40E_MEDIA_TYPE_FIBER &&
 858             hw->phy.media_type != I40E_MEDIA_TYPE_BACKPLANE &&
 859             hw->phy.media_type != I40E_MEDIA_TYPE_DA &&
 860             hw->phy.link_info.link_info & I40E_AQ_LINK_UP)
 861                 return -EOPNOTSUPP;
 862         if (hw->device_id == I40E_DEV_ID_KX_B ||
 863             hw->device_id == I40E_DEV_ID_KX_C ||
 864             hw->device_id == I40E_DEV_ID_20G_KR2 ||
 865             hw->device_id == I40E_DEV_ID_20G_KR2_A ||
 866             hw->device_id == I40E_DEV_ID_25G_B ||
 867             hw->device_id == I40E_DEV_ID_KX_X722) {
 868                 netdev_info(netdev, "Changing settings is not supported on backplane.\n");
 869                 return -EOPNOTSUPP;
 870         }
 871
 872         /* copy the ksettings to copy_ks to avoid modifying the origin */
 873         memcpy(&copy_ks, ks, sizeof(struct ethtool_link_ksettings));
 874
 875         /* save autoneg out of ksettings */
 876         autoneg = copy_ks.base.autoneg;
 877
 878         /* get our own copy of the bits to check against */
 879         memset(&safe_ks, 0, sizeof(struct ethtool_link_ksettings));
 880         safe_ks.base.cmd = copy_ks.base.cmd;
 881         safe_ks.base.link_mode_masks_nwords =
 882                 copy_ks.base.link_mode_masks_nwords;
 883         i40e_get_link_ksettings(netdev, &safe_ks);
 884
 885         /* Get link modes supported by hardware and check against modes
 886          * requested by the user.  Return an error if unsupported mode was set.
 887          */
 888         if (!bitmap_subset(copy_ks.link_modes.advertising,
 889                            safe_ks.link_modes.supported,
 890                            __ETHTOOL_LINK_MODE_MASK_NBITS))
 891                 return -EINVAL;
 892
 893         /* set autoneg back to what it currently is */
 894         copy_ks.base.autoneg = safe_ks.base.autoneg;
 895
 896         /* If copy_ks.base and safe_ks.base are not the same now, then they are
 897          * trying to set something that we do not support.
 898          */
 899         if (memcmp(&copy_ks.base, &safe_ks.base,
 900                    sizeof(struct ethtool_link_settings)))
 901                 return -EOPNOTSUPP;
 902
 903         while (test_and_set_bit(__I40E_CONFIG_BUSY, pf->state)) {
 904                 timeout--;
 905                 if (!timeout)
 906                         return -EBUSY;
 907                 usleep_range(1000, 2000);
 908         }
 909
 910         /* Get the current phy config */
 911         status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities,
 912                                               NULL);
 913         if (status) {
 914                 err = -EAGAIN;
 915                 goto done;
 916         }
 917
 918         /* Copy abilities to config in case autoneg is not
 919          * set below
 920          */
 921         memset(&config, 0, sizeof(struct i40e_aq_set_phy_config));
 922         config.abilities = abilities.abilities;
 923
 924         /* Check autoneg */
 925         if (autoneg == AUTONEG_ENABLE) {
 926                 /* If autoneg was not already enabled */
 927                 if (!(hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED)) {
 928                         /* If autoneg is not supported, return error */
 929                         if (!ethtool_link_ksettings_test_link_mode(&safe_ks,
 930                                                                    supported,
 931                                                                    Autoneg)) {
 932                                 netdev_info(netdev, "Autoneg not supported on this phy\n");
 933                                 err = -EINVAL;
 934                                 goto done;
 935                         }
 936                         /* Autoneg is allowed to change */
 937                         config.abilities = abilities.abilities |
 938                                            I40E_AQ_PHY_ENABLE_AN;
 939                         autoneg_changed = true;
 940                 }
 941         } else {
 942                 /* If autoneg is currently enabled */
 943                 if (hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED) {
 944                         /* If autoneg is supported 10GBASE_T is the only PHY
 945                          * that can disable it, so otherwise return error
 946                          */
 947                         if (ethtool_link_ksettings_test_link_mode(&safe_ks,
 948                                                                   supported,
 949                                                                   Autoneg) &&
 950                             hw->phy.link_info.phy_type !=
 951                             I40E_PHY_TYPE_10GBASE_T) {
 952                                 netdev_info(netdev, "Autoneg cannot be disabled on this phy\n");
 953                                 err = -EINVAL;
 954                                 goto done;
 955                         }
 956                         /* Autoneg is allowed to change */
 957                         config.abilities = abilities.abilities &
 958                                            ~I40E_AQ_PHY_ENABLE_AN;
 959                         autoneg_changed = true;
 960                 }
 961         }
 962
 963         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
 964                                                   100baseT_Full))
 965                 config.link_speed |= I40E_LINK_SPEED_100MB;
 966         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
 967                                                   1000baseT_Full) ||
 968             ethtool_link_ksettings_test_link_mode(ks, advertising,
 969                                                   1000baseX_Full) ||
 970             ethtool_link_ksettings_test_link_mode(ks, advertising,
 971                                                   1000baseKX_Full))
 972                 config.link_speed |= I40E_LINK_SPEED_1GB;
 973         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
 974                                                   10000baseT_Full) ||
 975             ethtool_link_ksettings_test_link_mode(ks, advertising,
 976                                                   10000baseKX4_Full) ||
 977             ethtool_link_ksettings_test_link_mode(ks, advertising,
 978                                                   10000baseKR_Full) ||
 979             ethtool_link_ksettings_test_link_mode(ks, advertising,
 980                                                   10000baseCR_Full) ||
 981             ethtool_link_ksettings_test_link_mode(ks, advertising,
 982                                                   10000baseSR_Full) ||
 983             ethtool_link_ksettings_test_link_mode(ks, advertising,
 984                                                   10000baseLR_Full))
 985                 config.link_speed |= I40E_LINK_SPEED_10GB;
 986         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
 987                                                   20000baseKR2_Full))
 988                 config.link_speed |= I40E_LINK_SPEED_20GB;
 989         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
 990                                                   25000baseCR_Full) ||
 991             ethtool_link_ksettings_test_link_mode(ks, advertising,
 992                                                   25000baseKR_Full) ||
 993             ethtool_link_ksettings_test_link_mode(ks, advertising,
 994                                                   25000baseSR_Full))
 995                 config.link_speed |= I40E_LINK_SPEED_25GB;
 996         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
 997                                                   40000baseKR4_Full) ||
 998             ethtool_link_ksettings_test_link_mode(ks, advertising,
 999                                                   40000baseCR4_Full) ||
1000             ethtool_link_ksettings_test_link_mode(ks, advertising,
1001                                                   40000baseSR4_Full) ||
1002             ethtool_link_ksettings_test_link_mode(ks, advertising,
1003                                                   40000baseLR4_Full))
1004                 config.link_speed |= I40E_LINK_SPEED_40GB;
1005
1006         /* If speed didn't get set, set it to what it currently is.
1007          * This is needed because if advertise is 0 (as it is when autoneg
1008          * is disabled) then speed won't get set.
1009          */
1010         if (!config.link_speed)
1011                 config.link_speed = abilities.link_speed;
1012         if (autoneg_changed || abilities.link_speed != config.link_speed) {
1013                 /* copy over the rest of the abilities */
1014                 config.phy_type = abilities.phy_type;
1015                 config.phy_type_ext = abilities.phy_type_ext;
1016                 config.eee_capability = abilities.eee_capability;
1017                 config.eeer = abilities.eeer_val;
1018                 config.low_power_ctrl = abilities.d3_lpan;
1019                 config.fec_config = abilities.fec_cfg_curr_mod_ext_info &
1020                                     I40E_AQ_PHY_FEC_CONFIG_MASK;
1021
1022                 /* save the requested speeds */
1023                 hw->phy.link_info.requested_speeds = config.link_speed;
1024                 /* set link and auto negotiation so changes take effect */
1025                 config.abilities |= I40E_AQ_PHY_ENABLE_ATOMIC_LINK;
1026                 /* If link is up put link down */
1027                 if (hw->phy.link_info.link_info & I40E_AQ_LINK_UP) {
1028                         /* Tell the OS link is going down, the link will go
1029                          * back up when fw says it is ready asynchronously
1030                          */
1031                         i40e_print_link_message(vsi, false);
1032                         netif_carrier_off(netdev);
1033                         netif_tx_stop_all_queues(netdev);
1034                 }
1035
1036                 /* make the aq call */
1037                 status = i40e_aq_set_phy_config(hw, &config, NULL);
1038                 if (status) {
1039                         netdev_info(netdev,
1040                                     "Set phy config failed, err %s aq_err %s\n",
1041                                     i40e_stat_str(hw, status),
1042                                     i40e_aq_str(hw, hw->aq.asq_last_status));
1043                         err = -EAGAIN;
1044                         goto done;
1045                 }
1046
1047                 status = i40e_update_link_info(hw);
1048                 if (status)
1049                         netdev_dbg(netdev,
1050                                    "Updating link info failed with err %s aq_err %s\n",
1051                                    i40e_stat_str(hw, status),
1052                                    i40e_aq_str(hw, hw->aq.asq_last_status));
1053
1054         } else {
1055                 netdev_info(netdev, "Nothing changed, exiting without setting anything.\n");
1056         }
1057
1058 done:
1059         clear_bit(__I40E_CONFIG_BUSY, pf->state);
1060
1061         return err;
1062 }
1063
1064 static int i40e_nway_reset(struct net_device *netdev)
1065 {
1066         /* restart autonegotiation */
1067         struct i40e_netdev_priv *np = netdev_priv(netdev);
1068         struct i40e_pf *pf = np->vsi->back;
1069         struct i40e_hw *hw = &pf->hw;
1070         bool link_up = hw->phy.link_info.link_info & I40E_AQ_LINK_UP;
1071         i40e_status ret = 0;
1072
1073         ret = i40e_aq_set_link_restart_an(hw, link_up, NULL);
1074         if (ret) {
1075                 netdev_info(netdev, "link restart failed, err %s aq_err %s\n",
1076                             i40e_stat_str(hw, ret),
1077                             i40e_aq_str(hw, hw->aq.asq_last_status));
1078                 return -EIO;
1079         }
1080
1081         return 0;
1082 }
1083
1084 /**
1085  * i40e_get_pauseparam -  Get Flow Control status
1086  * @netdev: netdevice structure
1087  * @pause: buffer to return pause parameters
1088  *
1089  * Return tx/rx-pause status
1090  **/
1091 static void i40e_get_pauseparam(struct net_device *netdev,
1092                                 struct ethtool_pauseparam *pause)
1093 {
1094         struct i40e_netdev_priv *np = netdev_priv(netdev);
1095         struct i40e_pf *pf = np->vsi->back;
1096         struct i40e_hw *hw = &pf->hw;
1097         struct i40e_link_status *hw_link_info = &hw->phy.link_info;
1098         struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config;
1099
1100         pause->autoneg =
1101                 ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
1102                   AUTONEG_ENABLE : AUTONEG_DISABLE);
1103
1104         /* PFC enabled so report LFC as off */
1105         if (dcbx_cfg->pfc.pfcenable) {
1106                 pause->rx_pause = 0;
1107                 pause->tx_pause = 0;
1108                 return;
1109         }
1110
1111         if (hw->fc.current_mode == I40E_FC_RX_PAUSE) {
1112                 pause->rx_pause = 1;
1113         } else if (hw->fc.current_mode == I40E_FC_TX_PAUSE) {
1114                 pause->tx_pause = 1;
1115         } else if (hw->fc.current_mode == I40E_FC_FULL) {
1116                 pause->rx_pause = 1;
1117                 pause->tx_pause = 1;
1118         }
1119 }
1120
1121 /**
1122  * i40e_set_pauseparam - Set Flow Control parameter
1123  * @netdev: network interface device structure
1124  * @pause: return tx/rx flow control status
1125  **/
1126 static int i40e_set_pauseparam(struct net_device *netdev,
1127                                struct ethtool_pauseparam *pause)
1128 {
1129         struct i40e_netdev_priv *np = netdev_priv(netdev);
1130         struct i40e_pf *pf = np->vsi->back;
1131         struct i40e_vsi *vsi = np->vsi;
1132         struct i40e_hw *hw = &pf->hw;
1133         struct i40e_link_status *hw_link_info = &hw->phy.link_info;
1134         struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config;
1135         bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP;
1136         i40e_status status;
1137         u8 aq_failures;
1138         int err = 0;
1139
1140         /* Changing the port's flow control is not supported if this isn't the
1141          * port's controlling PF
1142          */
1143         if (hw->partition_id != 1) {
1144                 i40e_partition_setting_complaint(pf);
1145                 return -EOPNOTSUPP;
1146         }
1147
1148         if (vsi != pf->vsi[pf->lan_vsi])
1149                 return -EOPNOTSUPP;
1150
1151         if (pause->autoneg != ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
1152             AUTONEG_ENABLE : AUTONEG_DISABLE)) {
1153                 netdev_info(netdev, "To change autoneg please use: ethtool -s <dev> autoneg <on|off>\n");
1154                 return -EOPNOTSUPP;
1155         }
1156
1157         /* If we have link and don't have autoneg */
1158         if (!test_bit(__I40E_DOWN, pf->state) &&
1159             !(hw_link_info->an_info & I40E_AQ_AN_COMPLETED)) {
1160                 /* Send message that it might not necessarily work*/
1161                 netdev_info(netdev, "Autoneg did not complete so changing settings may not result in an actual change.\n");
1162         }
1163
1164         if (dcbx_cfg->pfc.pfcenable) {
1165                 netdev_info(netdev,
1166                             "Priority flow control enabled. Cannot set link flow control.\n");
1167                 return -EOPNOTSUPP;
1168         }
1169
1170         if (pause->rx_pause && pause->tx_pause)
1171                 hw->fc.requested_mode = I40E_FC_FULL;
1172         else if (pause->rx_pause && !pause->tx_pause)
1173                 hw->fc.requested_mode = I40E_FC_RX_PAUSE;
1174         else if (!pause->rx_pause && pause->tx_pause)
1175                 hw->fc.requested_mode = I40E_FC_TX_PAUSE;
1176         else if (!pause->rx_pause && !pause->tx_pause)
1177                 hw->fc.requested_mode = I40E_FC_NONE;
1178         else
1179                  return -EINVAL;
1180
1181         /* Tell the OS link is going down, the link will go back up when fw
1182          * says it is ready asynchronously
1183          */
1184         i40e_print_link_message(vsi, false);
1185         netif_carrier_off(netdev);
1186         netif_tx_stop_all_queues(netdev);
1187
1188         /* Set the fc mode and only restart an if link is up*/
1189         status = i40e_set_fc(hw, &aq_failures, link_up);
1190
1191         if (aq_failures & I40E_SET_FC_AQ_FAIL_GET) {
1192                 netdev_info(netdev, "Set fc failed on the get_phy_capabilities call with err %s aq_err %s\n",
1193                             i40e_stat_str(hw, status),
1194                             i40e_aq_str(hw, hw->aq.asq_last_status));
1195                 err = -EAGAIN;
1196         }
1197         if (aq_failures & I40E_SET_FC_AQ_FAIL_SET) {
1198                 netdev_info(netdev, "Set fc failed on the set_phy_config call with err %s aq_err %s\n",
1199                             i40e_stat_str(hw, status),
1200                             i40e_aq_str(hw, hw->aq.asq_last_status));
1201                 err = -EAGAIN;
1202         }
1203         if (aq_failures & I40E_SET_FC_AQ_FAIL_UPDATE) {
1204                 netdev_info(netdev, "Set fc failed on the get_link_info call with err %s aq_err %s\n",
1205                             i40e_stat_str(hw, status),
1206                             i40e_aq_str(hw, hw->aq.asq_last_status));
1207                 err = -EAGAIN;
1208         }
1209
1210         if (!test_bit(__I40E_DOWN, pf->state)) {
1211                 /* Give it a little more time to try to come back */
1212                 msleep(75);
1213                 if (!test_bit(__I40E_DOWN, pf->state))
1214                         return i40e_nway_reset(netdev);
1215         }
1216
1217         return err;
1218 }
1219
1220 static u32 i40e_get_msglevel(struct net_device *netdev)
1221 {
1222         struct i40e_netdev_priv *np = netdev_priv(netdev);
1223         struct i40e_pf *pf = np->vsi->back;
1224         u32 debug_mask = pf->hw.debug_mask;
1225
1226         if (debug_mask)
1227                 netdev_info(netdev, "i40e debug_mask: 0x%08X\n", debug_mask);
1228
1229         return pf->msg_enable;
1230 }
1231
1232 static void i40e_set_msglevel(struct net_device *netdev, u32 data)
1233 {
1234         struct i40e_netdev_priv *np = netdev_priv(netdev);
1235         struct i40e_pf *pf = np->vsi->back;
1236
1237         if (I40E_DEBUG_USER & data)
1238                 pf->hw.debug_mask = data;
1239         else
1240                 pf->msg_enable = data;
1241 }
1242
1243 static int i40e_get_regs_len(struct net_device *netdev)
1244 {
1245         int reg_count = 0;
1246         int i;
1247
1248         for (i = 0; i40e_reg_list[i].offset != 0; i++)
1249                 reg_count += i40e_reg_list[i].elements;
1250
1251         return reg_count * sizeof(u32);
1252 }
1253
1254 static void i40e_get_regs(struct net_device *netdev, struct ethtool_regs *regs,
1255                           void *p)
1256 {
1257         struct i40e_netdev_priv *np = netdev_priv(netdev);
1258         struct i40e_pf *pf = np->vsi->back;
1259         struct i40e_hw *hw = &pf->hw;
1260         u32 *reg_buf = p;
1261         unsigned int i, j, ri;
1262         u32 reg;
1263
1264         /* Tell ethtool which driver-version-specific regs output we have.
1265          *
1266          * At some point, if we have ethtool doing special formatting of
1267          * this data, it will rely on this version number to know how to
1268          * interpret things.  Hence, this needs to be updated if/when the
1269          * diags register table is changed.
1270          */
1271         regs->version = 1;
1272
1273         /* loop through the diags reg table for what to print */
1274         ri = 0;
1275         for (i = 0; i40e_reg_list[i].offset != 0; i++) {
1276                 for (j = 0; j < i40e_reg_list[i].elements; j++) {
1277                         reg = i40e_reg_list[i].offset
1278                                 + (j * i40e_reg_list[i].stride);
1279                         reg_buf[ri++] = rd32(hw, reg);
1280                 }
1281         }
1282
1283 }
1284
1285 static int i40e_get_eeprom(struct net_device *netdev,
1286                            struct ethtool_eeprom *eeprom, u8 *bytes)
1287 {
1288         struct i40e_netdev_priv *np = netdev_priv(netdev);
1289         struct i40e_hw *hw = &np->vsi->back->hw;
1290         struct i40e_pf *pf = np->vsi->back;
1291         int ret_val = 0, len, offset;
1292         u8 *eeprom_buff;
1293         u16 i, sectors;
1294         bool last;
1295         u32 magic;
1296
1297 #define I40E_NVM_SECTOR_SIZE  4096
1298         if (eeprom->len == 0)
1299                 return -EINVAL;
1300
1301         /* check for NVMUpdate access method */
1302         magic = hw->vendor_id | (hw->device_id << 16);
1303         if (eeprom->magic && eeprom->magic != magic) {
1304                 struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom;
1305                 int errno = 0;
1306
1307                 /* make sure it is the right magic for NVMUpdate */
1308                 if ((eeprom->magic >> 16) != hw->device_id)
1309                         errno = -EINVAL;
1310                 else if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||
1311                          test_bit(__I40E_RESET_INTR_RECEIVED, pf->state))
1312                         errno = -EBUSY;
1313                 else
1314                         ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno);
1315
1316                 if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM))
1317                         dev_info(&pf->pdev->dev,
1318                                  "NVMUpdate read failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n",
1319                                  ret_val, hw->aq.asq_last_status, errno,
1320                                  (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK),
1321                                  cmd->offset, cmd->data_size);
1322
1323                 return errno;
1324         }
1325
1326         /* normal ethtool get_eeprom support */
1327         eeprom->magic = hw->vendor_id | (hw->device_id << 16);
1328
1329         eeprom_buff = kzalloc(eeprom->len, GFP_KERNEL);
1330         if (!eeprom_buff)
1331                 return -ENOMEM;
1332
1333         ret_val = i40e_acquire_nvm(hw, I40E_RESOURCE_READ);
1334         if (ret_val) {
1335                 dev_info(&pf->pdev->dev,
1336                          "Failed Acquiring NVM resource for read err=%d status=0x%x\n",
1337                          ret_val, hw->aq.asq_last_status);
1338                 goto free_buff;
1339         }
1340
1341         sectors = eeprom->len / I40E_NVM_SECTOR_SIZE;
1342         sectors += (eeprom->len % I40E_NVM_SECTOR_SIZE) ? 1 : 0;
1343         len = I40E_NVM_SECTOR_SIZE;
1344         last = false;
1345         for (i = 0; i < sectors; i++) {
1346                 if (i == (sectors - 1)) {
1347                         len = eeprom->len - (I40E_NVM_SECTOR_SIZE * i);
1348                         last = true;
1349                 }
1350                 offset = eeprom->offset + (I40E_NVM_SECTOR_SIZE * i),
1351                 ret_val = i40e_aq_read_nvm(hw, 0x0, offset, len,
1352                                 (u8 *)eeprom_buff + (I40E_NVM_SECTOR_SIZE * i),
1353                                 last, NULL);
1354                 if (ret_val && hw->aq.asq_last_status == I40E_AQ_RC_EPERM) {
1355                         dev_info(&pf->pdev->dev,
1356                                  "read NVM failed, invalid offset 0x%x\n",
1357                                  offset);
1358                         break;
1359                 } else if (ret_val &&
1360                            hw->aq.asq_last_status == I40E_AQ_RC_EACCES) {
1361                         dev_info(&pf->pdev->dev,
1362                                  "read NVM failed, access, offset 0x%x\n",
1363                                  offset);
1364                         break;
1365                 } else if (ret_val) {
1366                         dev_info(&pf->pdev->dev,
1367                                  "read NVM failed offset %d err=%d status=0x%x\n",
1368                                  offset, ret_val, hw->aq.asq_last_status);
1369                         break;
1370                 }
1371         }
1372
1373         i40e_release_nvm(hw);
1374         memcpy(bytes, (u8 *)eeprom_buff, eeprom->len);
1375 free_buff:
1376         kfree(eeprom_buff);
1377         return ret_val;
1378 }
1379
1380 static int i40e_get_eeprom_len(struct net_device *netdev)
1381 {
1382         struct i40e_netdev_priv *np = netdev_priv(netdev);
1383         struct i40e_hw *hw = &np->vsi->back->hw;
1384         u32 val;
1385
1386 #define X722_EEPROM_SCOPE_LIMIT 0x5B9FFF
1387         if (hw->mac.type == I40E_MAC_X722) {
1388                 val = X722_EEPROM_SCOPE_LIMIT + 1;
1389                 return val;
1390         }
1391         val = (rd32(hw, I40E_GLPCI_LBARCTRL)
1392                 & I40E_GLPCI_LBARCTRL_FL_SIZE_MASK)
1393                 >> I40E_GLPCI_LBARCTRL_FL_SIZE_SHIFT;
1394         /* register returns value in power of 2, 64Kbyte chunks. */
1395         val = (64 * 1024) * BIT(val);
1396         return val;
1397 }
1398
1399 static int i40e_set_eeprom(struct net_device *netdev,
1400                            struct ethtool_eeprom *eeprom, u8 *bytes)
1401 {
1402         struct i40e_netdev_priv *np = netdev_priv(netdev);
1403         struct i40e_hw *hw = &np->vsi->back->hw;
1404         struct i40e_pf *pf = np->vsi->back;
1405         struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom;
1406         int ret_val = 0;
1407         int errno = 0;
1408         u32 magic;
1409
1410         /* normal ethtool set_eeprom is not supported */
1411         magic = hw->vendor_id | (hw->device_id << 16);
1412         if (eeprom->magic == magic)
1413                 errno = -EOPNOTSUPP;
1414         /* check for NVMUpdate access method */
1415         else if (!eeprom->magic || (eeprom->magic >> 16) != hw->device_id)
1416                 errno = -EINVAL;
1417         else if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||
1418                  test_bit(__I40E_RESET_INTR_RECEIVED, pf->state))
1419                 errno = -EBUSY;
1420         else
1421                 ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno);
1422
1423         if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM))
1424                 dev_info(&pf->pdev->dev,
1425                          "NVMUpdate write failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n",
1426                          ret_val, hw->aq.asq_last_status, errno,
1427                          (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK),
1428                          cmd->offset, cmd->data_size);
1429
1430         return errno;
1431 }
1432
1433 static void i40e_get_drvinfo(struct net_device *netdev,
1434                              struct ethtool_drvinfo *drvinfo)
1435 {
1436         struct i40e_netdev_priv *np = netdev_priv(netdev);
1437         struct i40e_vsi *vsi = np->vsi;
1438         struct i40e_pf *pf = vsi->back;
1439
1440         strlcpy(drvinfo->driver, i40e_driver_name, sizeof(drvinfo->driver));
1441         strlcpy(drvinfo->version, i40e_driver_version_str,
1442                 sizeof(drvinfo->version));
1443         strlcpy(drvinfo->fw_version, i40e_nvm_version_str(&pf->hw),
1444                 sizeof(drvinfo->fw_version));
1445         strlcpy(drvinfo->bus_info, pci_name(pf->pdev),
1446                 sizeof(drvinfo->bus_info));
1447         drvinfo->n_priv_flags = I40E_PRIV_FLAGS_STR_LEN;
1448         if (pf->hw.pf_id == 0)
1449                 drvinfo->n_priv_flags += I40E_GL_PRIV_FLAGS_STR_LEN;
1450 }
1451
1452 static void i40e_get_ringparam(struct net_device *netdev,
1453                                struct ethtool_ringparam *ring)
1454 {
1455         struct i40e_netdev_priv *np = netdev_priv(netdev);
1456         struct i40e_pf *pf = np->vsi->back;
1457         struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi];
1458
1459         ring->rx_max_pending = I40E_MAX_NUM_DESCRIPTORS;
1460         ring->tx_max_pending = I40E_MAX_NUM_DESCRIPTORS;
1461         ring->rx_mini_max_pending = 0;
1462         ring->rx_jumbo_max_pending = 0;
1463         ring->rx_pending = vsi->rx_rings[0]->count;
1464         ring->tx_pending = vsi->tx_rings[0]->count;
1465         ring->rx_mini_pending = 0;
1466         ring->rx_jumbo_pending = 0;
1467 }
1468
1469 static bool i40e_active_tx_ring_index(struct i40e_vsi *vsi, u16 index)
1470 {
1471         if (i40e_enabled_xdp_vsi(vsi)) {
1472                 return index < vsi->num_queue_pairs ||
1473                         (index >= vsi->alloc_queue_pairs &&
1474                          index < vsi->alloc_queue_pairs + vsi->num_queue_pairs);
1475         }
1476
1477         return index < vsi->num_queue_pairs;
1478 }
1479
1480 static int i40e_set_ringparam(struct net_device *netdev,
1481                               struct ethtool_ringparam *ring)
1482 {
1483         struct i40e_ring *tx_rings = NULL, *rx_rings = NULL;
1484         struct i40e_netdev_priv *np = netdev_priv(netdev);
1485         struct i40e_hw *hw = &np->vsi->back->hw;
1486         struct i40e_vsi *vsi = np->vsi;
1487         struct i40e_pf *pf = vsi->back;
1488         u32 new_rx_count, new_tx_count;
1489         u16 tx_alloc_queue_pairs;
1490         int timeout = 50;
1491         int i, err = 0;
1492
1493         if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
1494                 return -EINVAL;
1495
1496         if (ring->tx_pending > I40E_MAX_NUM_DESCRIPTORS ||
1497             ring->tx_pending < I40E_MIN_NUM_DESCRIPTORS ||
1498             ring->rx_pending > I40E_MAX_NUM_DESCRIPTORS ||
1499             ring->rx_pending < I40E_MIN_NUM_DESCRIPTORS) {
1500                 netdev_info(netdev,
1501                             "Descriptors requested (Tx: %d / Rx: %d) out of range [%d-%d]\n",
1502                             ring->tx_pending, ring->rx_pending,
1503                             I40E_MIN_NUM_DESCRIPTORS, I40E_MAX_NUM_DESCRIPTORS);
1504                 return -EINVAL;
1505         }
1506
1507         new_tx_count = ALIGN(ring->tx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE);
1508         new_rx_count = ALIGN(ring->rx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE);
1509
1510         /* if nothing to do return success */
1511         if ((new_tx_count == vsi->tx_rings[0]->count) &&
1512             (new_rx_count == vsi->rx_rings[0]->count))
1513                 return 0;
1514
1515         while (test_and_set_bit(__I40E_CONFIG_BUSY, pf->state)) {
1516                 timeout--;
1517                 if (!timeout)
1518                         return -EBUSY;
1519                 usleep_range(1000, 2000);
1520         }
1521
1522         if (!netif_running(vsi->netdev)) {
1523                 /* simple case - set for the next time the netdev is started */
1524                 for (i = 0; i < vsi->num_queue_pairs; i++) {
1525                         vsi->tx_rings[i]->count = new_tx_count;
1526                         vsi->rx_rings[i]->count = new_rx_count;
1527                         if (i40e_enabled_xdp_vsi(vsi))
1528                                 vsi->xdp_rings[i]->count = new_tx_count;
1529                 }
1530                 goto done;
1531         }
1532
1533         /* We can't just free everything and then setup again,
1534          * because the ISRs in MSI-X mode get passed pointers
1535          * to the Tx and Rx ring structs.
1536          */
1537
1538         /* alloc updated Tx and XDP Tx resources */
1539         tx_alloc_queue_pairs = vsi->alloc_queue_pairs *
1540                                (i40e_enabled_xdp_vsi(vsi) ? 2 : 1);
1541         if (new_tx_count != vsi->tx_rings[0]->count) {
1542                 netdev_info(netdev,
1543                             "Changing Tx descriptor count from %d to %d.\n",
1544                             vsi->tx_rings[0]->count, new_tx_count);
1545                 tx_rings = kcalloc(tx_alloc_queue_pairs,
1546                                    sizeof(struct i40e_ring), GFP_KERNEL);
1547                 if (!tx_rings) {
1548                         err = -ENOMEM;
1549                         goto done;
1550                 }
1551
1552                 for (i = 0; i < tx_alloc_queue_pairs; i++) {
1553                         if (!i40e_active_tx_ring_index(vsi, i))
1554                                 continue;
1555
1556                         tx_rings[i] = *vsi->tx_rings[i];
1557                         tx_rings[i].count = new_tx_count;
1558                         /* the desc and bi pointers will be reallocated in the
1559                          * setup call
1560                          */
1561                         tx_rings[i].desc = NULL;
1562                         tx_rings[i].rx_bi = NULL;
1563                         err = i40e_setup_tx_descriptors(&tx_rings[i]);
1564                         if (err) {
1565                                 while (i) {
1566                                         i--;
1567                                         if (!i40e_active_tx_ring_index(vsi, i))
1568                                                 continue;
1569                                         i40e_free_tx_resources(&tx_rings[i]);
1570                                 }
1571                                 kfree(tx_rings);
1572                                 tx_rings = NULL;
1573
1574                                 goto done;
1575                         }
1576                 }
1577         }
1578
1579         /* alloc updated Rx resources */
1580         if (new_rx_count != vsi->rx_rings[0]->count) {
1581                 netdev_info(netdev,
1582                             "Changing Rx descriptor count from %d to %d\n",
1583                             vsi->rx_rings[0]->count, new_rx_count);
1584                 rx_rings = kcalloc(vsi->alloc_queue_pairs,
1585                                    sizeof(struct i40e_ring), GFP_KERNEL);
1586                 if (!rx_rings) {
1587                         err = -ENOMEM;
1588                         goto free_tx;
1589                 }
1590
1591                 for (i = 0; i < vsi->num_queue_pairs; i++) {
1592                         u16 unused;
1593
1594                         /* clone ring and setup updated count */
1595                         rx_rings[i] = *vsi->rx_rings[i];
1596                         rx_rings[i].count = new_rx_count;
1597                         /* the desc and bi pointers will be reallocated in the
1598                          * setup call
1599                          */
1600                         rx_rings[i].desc = NULL;
1601                         rx_rings[i].rx_bi = NULL;
1602                         /* Clear cloned XDP RX-queue info before setup call */
1603                         memset(&rx_rings[i].xdp_rxq, 0, sizeof(rx_rings[i].xdp_rxq));
1604                         /* this is to allow wr32 to have something to write to
1605                          * during early allocation of Rx buffers
1606                          */
1607                         rx_rings[i].tail = hw->hw_addr + I40E_PRTGEN_STATUS;
1608                         err = i40e_setup_rx_descriptors(&rx_rings[i]);
1609                         if (err)
1610                                 goto rx_unwind;
1611
1612                         /* now allocate the Rx buffers to make sure the OS
1613                          * has enough memory, any failure here means abort
1614                          */
1615                         unused = I40E_DESC_UNUSED(&rx_rings[i]);
1616                         err = i40e_alloc_rx_buffers(&rx_rings[i], unused);
1617 rx_unwind:
1618                         if (err) {
1619                                 do {
1620                                         i40e_free_rx_resources(&rx_rings[i]);
1621                                 } while (i--);
1622                                 kfree(rx_rings);
1623                                 rx_rings = NULL;
1624
1625                                 goto free_tx;
1626                         }
1627                 }
1628         }
1629
1630         /* Bring interface down, copy in the new ring info,
1631          * then restore the interface
1632          */
1633         i40e_down(vsi);
1634
1635         if (tx_rings) {
1636                 for (i = 0; i < tx_alloc_queue_pairs; i++) {
1637                         if (i40e_active_tx_ring_index(vsi, i)) {
1638                                 i40e_free_tx_resources(vsi->tx_rings[i]);
1639                                 *vsi->tx_rings[i] = tx_rings[i];
1640                         }
1641                 }
1642                 kfree(tx_rings);
1643                 tx_rings = NULL;
1644         }
1645
1646         if (rx_rings) {
1647                 for (i = 0; i < vsi->num_queue_pairs; i++) {
1648                         i40e_free_rx_resources(vsi->rx_rings[i]);
1649                         /* get the real tail offset */
1650                         rx_rings[i].tail = vsi->rx_rings[i]->tail;
1651                         /* this is to fake out the allocation routine
1652                          * into thinking it has to realloc everything
1653                          * but the recycling logic will let us re-use
1654                          * the buffers allocated above
1655                          */
1656                         rx_rings[i].next_to_use = 0;
1657                         rx_rings[i].next_to_clean = 0;
1658                         rx_rings[i].next_to_alloc = 0;
1659                         /* do a struct copy */
1660                         *vsi->rx_rings[i] = rx_rings[i];
1661                 }
1662                 kfree(rx_rings);
1663                 rx_rings = NULL;
1664         }
1665
1666         i40e_up(vsi);
1667
1668 free_tx:
1669         /* error cleanup if the Rx allocations failed after getting Tx */
1670         if (tx_rings) {
1671                 for (i = 0; i < tx_alloc_queue_pairs; i++) {
1672                         if (i40e_active_tx_ring_index(vsi, i))
1673                                 i40e_free_tx_resources(vsi->tx_rings[i]);
1674                 }
1675                 kfree(tx_rings);
1676                 tx_rings = NULL;
1677         }
1678
1679 done:
1680         clear_bit(__I40E_CONFIG_BUSY, pf->state);
1681
1682         return err;
1683 }
1684
1685 /**
1686  * i40e_get_stats_count - return the stats count for a device
1687  * @netdev: the netdev to return the count for
1688  *
1689  * Returns the total number of statistics for this netdev. Note that even
1690  * though this is a function, it is required that the count for a specific
1691  * netdev must never change. Basing the count on static values such as the
1692  * maximum number of queues or the device type is ok. However, the API for
1693  * obtaining stats is *not* safe against changes based on non-static
1694  * values such as the *current* number of queues, or runtime flags.
1695  *
1696  * If a statistic is not always enabled, return it as part of the count
1697  * anyways, always return its string, and report its value as zero.
1698  **/
1699 static int i40e_get_stats_count(struct net_device *netdev)
1700 {
1701         struct i40e_netdev_priv *np = netdev_priv(netdev);
1702         struct i40e_vsi *vsi = np->vsi;
1703         struct i40e_pf *pf = vsi->back;
1704
1705         if (vsi == pf->vsi[pf->lan_vsi] && pf->hw.partition_id == 1)
1706                 return I40E_PF_STATS_LEN(netdev);
1707         else
1708                 return I40E_VSI_STATS_LEN(netdev);
1709 }
1710
1711 static int i40e_get_sset_count(struct net_device *netdev, int sset)
1712 {
1713         struct i40e_netdev_priv *np = netdev_priv(netdev);
1714         struct i40e_vsi *vsi = np->vsi;
1715         struct i40e_pf *pf = vsi->back;
1716
1717         switch (sset) {
1718         case ETH_SS_TEST:
1719                 return I40E_TEST_LEN;
1720         case ETH_SS_STATS:
1721                 return i40e_get_stats_count(netdev);
1722         case ETH_SS_PRIV_FLAGS:
1723                 return I40E_PRIV_FLAGS_STR_LEN +
1724                         (pf->hw.pf_id == 0 ? I40E_GL_PRIV_FLAGS_STR_LEN : 0);
1725         default:
1726                 return -EOPNOTSUPP;
1727         }
1728 }
1729
1730 /**
1731  * i40e_add_one_ethtool_stat - copy the stat into the supplied buffer
1732  * @data: location to store the stat value
1733  * @pointer: basis for where to copy from
1734  * @stat: the stat definition
1735  *
1736  * Copies the stat data defined by the pointer and stat structure pair into
1737  * the memory supplied as data. Used to implement i40e_add_ethtool_stats.
1738  * If the pointer is null, data will be zero'd.
1739  */
1740 static inline void
1741 i40e_add_one_ethtool_stat(u64 *data, void *pointer,
1742                           const struct i40e_stats *stat)
1743 {
1744         char *p;
1745
1746         if (!pointer) {
1747                 /* ensure that the ethtool data buffer is zero'd for any stats
1748                  * which don't have a valid pointer.
1749                  */
1750                 *data = 0;
1751                 return;
1752         }
1753
1754         p = (char *)pointer + stat->stat_offset;
1755         switch (stat->sizeof_stat) {
1756         case sizeof(u64):
1757                 *data = *((u64 *)p);
1758                 break;
1759         case sizeof(u32):
1760                 *data = *((u32 *)p);
1761                 break;
1762         case sizeof(u16):
1763                 *data = *((u16 *)p);
1764                 break;
1765         case sizeof(u8):
1766                 *data = *((u8 *)p);
1767                 break;
1768         default:
1769                 WARN_ONCE(1, "unexpected stat size for %s",
1770                           stat->stat_string);
1771                 *data = 0;
1772         }
1773 }
1774
1775 /**
1776  * __i40e_add_ethtool_stats - copy stats into the ethtool supplied buffer
1777  * @data: ethtool stats buffer
1778  * @pointer: location to copy stats from
1779  * @stats: array of stats to copy
1780  * @size: the size of the stats definition
1781  *
1782  * Copy the stats defined by the stats array using the pointer as a base into
1783  * the data buffer supplied by ethtool. Updates the data pointer to point to
1784  * the next empty location for successive calls to __i40e_add_ethtool_stats.
1785  * If pointer is null, set the data values to zero and update the pointer to
1786  * skip these stats.
1787  **/
1788 static inline void
1789 __i40e_add_ethtool_stats(u64 **data, void *pointer,
1790                          const struct i40e_stats stats[],
1791                          const unsigned int size)
1792 {
1793         unsigned int i;
1794
1795         for (i = 0; i < size; i++)
1796                 i40e_add_one_ethtool_stat((*data)++, pointer, &stats[i]);
1797 }
1798
1799 /**
1800  * i40e_add_ethtool_stats - copy stats into ethtool supplied buffer
1801  * @data: ethtool stats buffer
1802  * @pointer: location where stats are stored
1803  * @stats: static const array of stat definitions
1804  *
1805  * Macro to ease the use of __i40e_add_ethtool_stats by taking a static
1806  * constant stats array and passing the ARRAY_SIZE(). This avoids typos by
1807  * ensuring that we pass the size associated with the given stats array.
1808  * Assumes that stats is an array.
1809  **/
1810 #define i40e_add_ethtool_stats(data, pointer, stats) \
1811         __i40e_add_ethtool_stats(data, pointer, stats, ARRAY_SIZE(stats))
1812
1813 /**
1814  * i40e_get_pfc_stats - copy HW PFC statistics to formatted structure
1815  * @pf: the PF device structure
1816  * @i: the priority value to copy
1817  *
1818  * The PFC stats are found as arrays in pf->stats, which is not easy to pass
1819  * into i40e_add_ethtool_stats. Produce a formatted i40e_pfc_stats structure
1820  * of the PFC stats for the given priority.
1821  **/
1822 static inline struct i40e_pfc_stats
1823 i40e_get_pfc_stats(struct i40e_pf *pf, unsigned int i)
1824 {
1825 #define I40E_GET_PFC_STAT(stat, priority) \
1826         .stat = pf->stats.stat[priority]
1827
1828         struct i40e_pfc_stats pfc = {
1829                 I40E_GET_PFC_STAT(priority_xon_rx, i),
1830                 I40E_GET_PFC_STAT(priority_xoff_rx, i),
1831                 I40E_GET_PFC_STAT(priority_xon_tx, i),
1832                 I40E_GET_PFC_STAT(priority_xoff_tx, i),
1833                 I40E_GET_PFC_STAT(priority_xon_2_xoff, i),
1834         };
1835         return pfc;
1836 }
1837
1838 /**
1839  * i40e_get_ethtool_stats - copy stat values into supplied buffer
1840  * @netdev: the netdev to collect stats for
1841  * @stats: ethtool stats command structure
1842  * @data: ethtool supplied buffer
1843  *
1844  * Copy the stats values for this netdev into the buffer. Expects data to be
1845  * pre-allocated to the size returned by i40e_get_stats_count.. Note that all
1846  * statistics must be copied in a static order, and the count must not change
1847  * for a given netdev. See i40e_get_stats_count for more details.
1848  *
1849  * If a statistic is not currently valid (such as a disabled queue), this
1850  * function reports its value as zero.
1851  **/
1852 static void i40e_get_ethtool_stats(struct net_device *netdev,
1853                                    struct ethtool_stats *stats, u64 *data)
1854 {
1855         struct i40e_netdev_priv *np = netdev_priv(netdev);
1856         struct i40e_ring *tx_ring, *rx_ring;
1857         struct i40e_vsi *vsi = np->vsi;
1858         struct i40e_pf *pf = vsi->back;
1859         struct i40e_veb *veb = pf->veb[pf->lan_veb];
1860         unsigned int i;
1861         unsigned int start;
1862         bool veb_stats;
1863         u64 *p = data;
1864
1865         i40e_update_stats(vsi);
1866
1867         i40e_add_ethtool_stats(&data, i40e_get_vsi_stats_struct(vsi),
1868                                i40e_gstrings_net_stats);
1869
1870         i40e_add_ethtool_stats(&data, vsi, i40e_gstrings_misc_stats);
1871
1872         rcu_read_lock();
1873         for (i = 0; i < I40E_MAX_NUM_QUEUES(netdev) ; i++) {
1874                 tx_ring = READ_ONCE(vsi->tx_rings[i]);
1875
1876                 if (!tx_ring) {
1877                         /* Bump the stat counter to skip these stats, and make
1878                          * sure the memory is zero'd
1879                          */
1880                         *(data++) = 0;
1881                         *(data++) = 0;
1882                         *(data++) = 0;
1883                         *(data++) = 0;
1884                         continue;
1885                 }
1886
1887                 /* process Tx ring statistics */
1888                 do {
1889                         start = u64_stats_fetch_begin_irq(&tx_ring->syncp);
1890                         data[0] = tx_ring->stats.packets;
1891                         data[1] = tx_ring->stats.bytes;
1892                 } while (u64_stats_fetch_retry_irq(&tx_ring->syncp, start));
1893                 data += 2;
1894
1895                 /* Rx ring is the 2nd half of the queue pair */
1896                 rx_ring = &tx_ring[1];
1897                 do {
1898                         start = u64_stats_fetch_begin_irq(&rx_ring->syncp);
1899                         data[0] = rx_ring->stats.packets;
1900                         data[1] = rx_ring->stats.bytes;
1901                 } while (u64_stats_fetch_retry_irq(&rx_ring->syncp, start));
1902                 data += 2;
1903         }
1904         rcu_read_unlock();
1905         if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1)
1906                 goto check_data_pointer;
1907
1908         veb_stats = ((pf->lan_veb != I40E_NO_VEB) &&
1909                      (pf->flags & I40E_FLAG_VEB_STATS_ENABLED));
1910
1911         /* If veb stats aren't enabled, pass NULL instead of the veb so that
1912          * we initialize stats to zero and update the data pointer
1913          * intelligently
1914          */
1915         i40e_add_ethtool_stats(&data, veb_stats ? veb : NULL,
1916                                i40e_gstrings_veb_stats);
1917
1918         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
1919                 i40e_add_ethtool_stats(&data, veb_stats ? veb : NULL,
1920                                        i40e_gstrings_veb_tc_stats);
1921
1922         i40e_add_ethtool_stats(&data, pf, i40e_gstrings_stats);
1923
1924         for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) {
1925                 struct i40e_pfc_stats pfc = i40e_get_pfc_stats(pf, i);
1926
1927                 i40e_add_ethtool_stats(&data, &pfc, i40e_gstrings_pfc_stats);
1928         }
1929
1930 check_data_pointer:
1931         WARN_ONCE(data - p != i40e_get_stats_count(netdev),
1932                   "ethtool stats count mismatch!");
1933 }
1934
1935 /**
1936  * __i40e_add_stat_strings - copy stat strings into ethtool buffer
1937  * @p: ethtool supplied buffer
1938  * @stats: stat definitions array
1939  * @size: size of the stats array
1940  *
1941  * Format and copy the strings described by stats into the buffer pointed at
1942  * by p.
1943  **/
1944 static void __i40e_add_stat_strings(u8 **p, const struct i40e_stats stats[],
1945                                     const unsigned int size, ...)
1946 {
1947         unsigned int i;
1948
1949         for (i = 0; i < size; i++) {
1950                 va_list args;
1951
1952                 va_start(args, size);
1953                 vsnprintf(*p, ETH_GSTRING_LEN, stats[i].stat_string, args);
1954                 *p += ETH_GSTRING_LEN;
1955                 va_end(args);
1956         }
1957 }
1958
1959 /**
1960  * 40e_add_stat_strings - copy stat strings into ethtool buffer
1961  * @p: ethtool supplied buffer
1962  * @stats: stat definitions array
1963  *
1964  * Format and copy the strings described by the const static stats value into
1965  * the buffer pointed at by p. Assumes that stats can have ARRAY_SIZE called
1966  * for it.
1967  **/
1968 #define i40e_add_stat_strings(p, stats, ...) \
1969         __i40e_add_stat_strings(p, stats, ARRAY_SIZE(stats), ## __VA_ARGS__)
1970
1971 /**
1972  * i40e_get_stat_strings - copy stat strings into supplied buffer
1973  * @netdev: the netdev to collect strings for
1974  * @data: supplied buffer to copy strings into
1975  *
1976  * Copy the strings related to stats for this netdev. Expects data to be
1977  * pre-allocated with the size reported by i40e_get_stats_count. Note that the
1978  * strings must be copied in a static order and the total count must not
1979  * change for a given netdev. See i40e_get_stats_count for more details.
1980  **/
1981 static void i40e_get_stat_strings(struct net_device *netdev, u8 *data)
1982 {
1983         struct i40e_netdev_priv *np = netdev_priv(netdev);
1984         struct i40e_vsi *vsi = np->vsi;
1985         struct i40e_pf *pf = vsi->back;
1986         unsigned int i;
1987         u8 *p = data;
1988
1989         i40e_add_stat_strings(&data, i40e_gstrings_net_stats);
1990
1991         i40e_add_stat_strings(&data, i40e_gstrings_misc_stats);
1992
1993         for (i = 0; i < I40E_MAX_NUM_QUEUES(netdev); i++) {
1994                 snprintf(data, ETH_GSTRING_LEN, "tx-%u.tx_packets", i);
1995                 data += ETH_GSTRING_LEN;
1996                 snprintf(data, ETH_GSTRING_LEN, "tx-%u.tx_bytes", i);
1997                 data += ETH_GSTRING_LEN;
1998                 snprintf(data, ETH_GSTRING_LEN, "rx-%u.rx_packets", i);
1999                 data += ETH_GSTRING_LEN;
2000                 snprintf(data, ETH_GSTRING_LEN, "rx-%u.rx_bytes", i);
2001                 data += ETH_GSTRING_LEN;
2002         }
2003         if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1)
2004                 return;
2005
2006         i40e_add_stat_strings(&data, i40e_gstrings_veb_stats);
2007
2008         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++)
2009                 i40e_add_stat_strings(&data, i40e_gstrings_veb_tc_stats, i);
2010
2011         i40e_add_stat_strings(&data, i40e_gstrings_stats);
2012
2013         for (i = 0; i < I40E_MAX_USER_PRIORITY; i++)
2014                 i40e_add_stat_strings(&data, i40e_gstrings_pfc_stats, i);
2015
2016         WARN_ONCE(p - data != i40e_get_stats_count(netdev) * ETH_GSTRING_LEN,
2017                   "stat strings count mismatch!");
2018 }
2019
2020 static void i40e_get_priv_flag_strings(struct net_device *netdev, u8 *data)
2021 {
2022         struct i40e_netdev_priv *np = netdev_priv(netdev);
2023         struct i40e_vsi *vsi = np->vsi;
2024         struct i40e_pf *pf = vsi->back;
2025         char *p = (char *)data;
2026         unsigned int i;
2027
2028         for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) {
2029                 snprintf(p, ETH_GSTRING_LEN, "%s",
2030                          i40e_gstrings_priv_flags[i].flag_string);
2031                 p += ETH_GSTRING_LEN;
2032         }
2033         if (pf->hw.pf_id != 0)
2034                 return;
2035         for (i = 0; i < I40E_GL_PRIV_FLAGS_STR_LEN; i++) {
2036                 snprintf(p, ETH_GSTRING_LEN, "%s",
2037                          i40e_gl_gstrings_priv_flags[i].flag_string);
2038                 p += ETH_GSTRING_LEN;
2039         }
2040 }
2041
2042 static void i40e_get_strings(struct net_device *netdev, u32 stringset,
2043                              u8 *data)
2044 {
2045         switch (stringset) {
2046         case ETH_SS_TEST:
2047                 memcpy(data, i40e_gstrings_test,
2048                        I40E_TEST_LEN * ETH_GSTRING_LEN);
2049                 break;
2050         case ETH_SS_STATS:
2051                 i40e_get_stat_strings(netdev, data);
2052                 break;
2053         case ETH_SS_PRIV_FLAGS:
2054                 i40e_get_priv_flag_strings(netdev, data);
2055                 break;
2056         default:
2057                 break;
2058         }
2059 }
2060
2061 static int i40e_get_ts_info(struct net_device *dev,
2062                             struct ethtool_ts_info *info)
2063 {
2064         struct i40e_pf *pf = i40e_netdev_to_pf(dev);
2065
2066         /* only report HW timestamping if PTP is enabled */
2067         if (!(pf->flags & I40E_FLAG_PTP))
2068                 return ethtool_op_get_ts_info(dev, info);
2069
2070         info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE |
2071                                 SOF_TIMESTAMPING_RX_SOFTWARE |
2072                                 SOF_TIMESTAMPING_SOFTWARE |
2073                                 SOF_TIMESTAMPING_TX_HARDWARE |
2074                                 SOF_TIMESTAMPING_RX_HARDWARE |
2075                                 SOF_TIMESTAMPING_RAW_HARDWARE;
2076
2077         if (pf->ptp_clock)
2078                 info->phc_index = ptp_clock_index(pf->ptp_clock);
2079         else
2080                 info->phc_index = -1;
2081
2082         info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON);
2083
2084         info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) |
2085                            BIT(HWTSTAMP_FILTER_PTP_V2_L2_EVENT) |
2086                            BIT(HWTSTAMP_FILTER_PTP_V2_L2_SYNC) |
2087                            BIT(HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ);
2088
2089         if (pf->hw_features & I40E_HW_PTP_L4_CAPABLE)
2090                 info->rx_filters |= BIT(HWTSTAMP_FILTER_PTP_V1_L4_SYNC) |
2091                                     BIT(HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) |
2092                                     BIT(HWTSTAMP_FILTER_PTP_V2_EVENT) |
2093                                     BIT(HWTSTAMP_FILTER_PTP_V2_L4_EVENT) |
2094                                     BIT(HWTSTAMP_FILTER_PTP_V2_SYNC) |
2095                                     BIT(HWTSTAMP_FILTER_PTP_V2_L4_SYNC) |
2096                                     BIT(HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) |
2097                                     BIT(HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ);
2098
2099         return 0;
2100 }
2101
2102 static int i40e_link_test(struct net_device *netdev, u64 *data)
2103 {
2104         struct i40e_netdev_priv *np = netdev_priv(netdev);
2105         struct i40e_pf *pf = np->vsi->back;
2106         i40e_status status;
2107         bool link_up = false;
2108
2109         netif_info(pf, hw, netdev, "link test\n");
2110         status = i40e_get_link_status(&pf->hw, &link_up);
2111         if (status) {
2112                 netif_err(pf, drv, netdev, "link query timed out, please retry test\n");
2113                 *data = 1;
2114                 return *data;
2115         }
2116
2117         if (link_up)
2118                 *data = 0;
2119         else
2120                 *data = 1;
2121
2122         return *data;
2123 }
2124
2125 static int i40e_reg_test(struct net_device *netdev, u64 *data)
2126 {
2127         struct i40e_netdev_priv *np = netdev_priv(netdev);
2128         struct i40e_pf *pf = np->vsi->back;
2129
2130         netif_info(pf, hw, netdev, "register test\n");
2131         *data = i40e_diag_reg_test(&pf->hw);
2132
2133         return *data;
2134 }
2135
2136 static int i40e_eeprom_test(struct net_device *netdev, u64 *data)
2137 {
2138         struct i40e_netdev_priv *np = netdev_priv(netdev);
2139         struct i40e_pf *pf = np->vsi->back;
2140
2141         netif_info(pf, hw, netdev, "eeprom test\n");
2142         *data = i40e_diag_eeprom_test(&pf->hw);
2143
2144         /* forcebly clear the NVM Update state machine */
2145         pf->hw.nvmupd_state = I40E_NVMUPD_STATE_INIT;
2146
2147         return *data;
2148 }
2149
2150 static int i40e_intr_test(struct net_device *netdev, u64 *data)
2151 {
2152         struct i40e_netdev_priv *np = netdev_priv(netdev);
2153         struct i40e_pf *pf = np->vsi->back;
2154         u16 swc_old = pf->sw_int_count;
2155
2156         netif_info(pf, hw, netdev, "interrupt test\n");
2157         wr32(&pf->hw, I40E_PFINT_DYN_CTL0,
2158              (I40E_PFINT_DYN_CTL0_INTENA_MASK |
2159               I40E_PFINT_DYN_CTL0_SWINT_TRIG_MASK |
2160               I40E_PFINT_DYN_CTL0_ITR_INDX_MASK |
2161               I40E_PFINT_DYN_CTL0_SW_ITR_INDX_ENA_MASK |
2162               I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK));
2163         usleep_range(1000, 2000);
2164         *data = (swc_old == pf->sw_int_count);
2165
2166         return *data;
2167 }
2168
2169 static inline bool i40e_active_vfs(struct i40e_pf *pf)
2170 {
2171         struct i40e_vf *vfs = pf->vf;
2172         int i;
2173
2174         for (i = 0; i < pf->num_alloc_vfs; i++)
2175                 if (test_bit(I40E_VF_STATE_ACTIVE, &vfs[i].vf_states))
2176                         return true;
2177         return false;
2178 }
2179
2180 static inline bool i40e_active_vmdqs(struct i40e_pf *pf)
2181 {
2182         return !!i40e_find_vsi_by_type(pf, I40E_VSI_VMDQ2);
2183 }
2184
2185 static void i40e_diag_test(struct net_device *netdev,
2186                            struct ethtool_test *eth_test, u64 *data)
2187 {
2188         struct i40e_netdev_priv *np = netdev_priv(netdev);
2189         bool if_running = netif_running(netdev);
2190         struct i40e_pf *pf = np->vsi->back;
2191
2192         if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
2193                 /* Offline tests */
2194                 netif_info(pf, drv, netdev, "offline testing starting\n");
2195
2196                 set_bit(__I40E_TESTING, pf->state);
2197
2198                 if (i40e_active_vfs(pf) || i40e_active_vmdqs(pf)) {
2199                         dev_warn(&pf->pdev->dev,
2200                                  "Please take active VFs and Netqueues offline and restart the adapter before running NIC diagnostics\n");
2201                         data[I40E_ETH_TEST_REG]         = 1;
2202                         data[I40E_ETH_TEST_EEPROM]      = 1;
2203                         data[I40E_ETH_TEST_INTR]        = 1;
2204                         data[I40E_ETH_TEST_LINK]        = 1;
2205                         eth_test->flags |= ETH_TEST_FL_FAILED;
2206                         clear_bit(__I40E_TESTING, pf->state);
2207                         goto skip_ol_tests;
2208                 }
2209
2210                 /* If the device is online then take it offline */
2211                 if (if_running)
2212                         /* indicate we're in test mode */
2213                         i40e_close(netdev);
2214                 else
2215                         /* This reset does not affect link - if it is
2216                          * changed to a type of reset that does affect
2217                          * link then the following link test would have
2218                          * to be moved to before the reset
2219                          */
2220                         i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true);
2221
2222                 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK]))
2223                         eth_test->flags |= ETH_TEST_FL_FAILED;
2224
2225                 if (i40e_eeprom_test(netdev, &data[I40E_ETH_TEST_EEPROM]))
2226                         eth_test->flags |= ETH_TEST_FL_FAILED;
2227
2228                 if (i40e_intr_test(netdev, &data[I40E_ETH_TEST_INTR]))
2229                         eth_test->flags |= ETH_TEST_FL_FAILED;
2230
2231                 /* run reg test last, a reset is required after it */
2232                 if (i40e_reg_test(netdev, &data[I40E_ETH_TEST_REG]))
2233                         eth_test->flags |= ETH_TEST_FL_FAILED;
2234
2235                 clear_bit(__I40E_TESTING, pf->state);
2236                 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true);
2237
2238                 if (if_running)
2239                         i40e_open(netdev);
2240         } else {
2241                 /* Online tests */
2242                 netif_info(pf, drv, netdev, "online testing starting\n");
2243
2244                 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK]))
2245                         eth_test->flags |= ETH_TEST_FL_FAILED;
2246
2247                 /* Offline only tests, not run in online; pass by default */
2248                 data[I40E_ETH_TEST_REG] = 0;
2249                 data[I40E_ETH_TEST_EEPROM] = 0;
2250                 data[I40E_ETH_TEST_INTR] = 0;
2251         }
2252
2253 skip_ol_tests:
2254
2255         netif_info(pf, drv, netdev, "testing finished\n");
2256 }
2257
2258 static void i40e_get_wol(struct net_device *netdev,
2259                          struct ethtool_wolinfo *wol)
2260 {
2261         struct i40e_netdev_priv *np = netdev_priv(netdev);
2262         struct i40e_pf *pf = np->vsi->back;
2263         struct i40e_hw *hw = &pf->hw;
2264         u16 wol_nvm_bits;
2265
2266         /* NVM bit on means WoL disabled for the port */
2267         i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits);
2268         if ((BIT(hw->port) & wol_nvm_bits) || (hw->partition_id != 1)) {
2269                 wol->supported = 0;
2270                 wol->wolopts = 0;
2271         } else {
2272                 wol->supported = WAKE_MAGIC;
2273                 wol->wolopts = (pf->wol_en ? WAKE_MAGIC : 0);
2274         }
2275 }
2276
2277 /**
2278  * i40e_set_wol - set the WakeOnLAN configuration
2279  * @netdev: the netdev in question
2280  * @wol: the ethtool WoL setting data
2281  **/
2282 static int i40e_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
2283 {
2284         struct i40e_netdev_priv *np = netdev_priv(netdev);
2285         struct i40e_pf *pf = np->vsi->back;
2286         struct i40e_vsi *vsi = np->vsi;
2287         struct i40e_hw *hw = &pf->hw;
2288         u16 wol_nvm_bits;
2289
2290         /* WoL not supported if this isn't the controlling PF on the port */
2291         if (hw->partition_id != 1) {
2292                 i40e_partition_setting_complaint(pf);
2293                 return -EOPNOTSUPP;
2294         }
2295
2296         if (vsi != pf->vsi[pf->lan_vsi])
2297                 return -EOPNOTSUPP;
2298
2299         /* NVM bit on means WoL disabled for the port */
2300         i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits);
2301         if (BIT(hw->port) & wol_nvm_bits)
2302                 return -EOPNOTSUPP;
2303
2304         /* only magic packet is supported */
2305         if (wol->wolopts && (wol->wolopts != WAKE_MAGIC))
2306                 return -EOPNOTSUPP;
2307
2308         /* is this a new value? */
2309         if (pf->wol_en != !!wol->wolopts) {
2310                 pf->wol_en = !!wol->wolopts;
2311                 device_set_wakeup_enable(&pf->pdev->dev, pf->wol_en);
2312         }
2313
2314         return 0;
2315 }
2316
2317 static int i40e_set_phys_id(struct net_device *netdev,
2318                             enum ethtool_phys_id_state state)
2319 {
2320         struct i40e_netdev_priv *np = netdev_priv(netdev);
2321         i40e_status ret = 0;
2322         struct i40e_pf *pf = np->vsi->back;
2323         struct i40e_hw *hw = &pf->hw;
2324         int blink_freq = 2;
2325         u16 temp_status;
2326
2327         switch (state) {
2328         case ETHTOOL_ID_ACTIVE:
2329                 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) {
2330                         pf->led_status = i40e_led_get(hw);
2331                 } else {
2332                         if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE))
2333                                 i40e_aq_set_phy_debug(hw, I40E_PHY_DEBUG_ALL,
2334                                                       NULL);
2335                         ret = i40e_led_get_phy(hw, &temp_status,
2336                                                &pf->phy_led_val);
2337                         pf->led_status = temp_status;
2338                 }
2339                 return blink_freq;
2340         case ETHTOOL_ID_ON:
2341                 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS))
2342                         i40e_led_set(hw, 0xf, false);
2343                 else
2344                         ret = i40e_led_set_phy(hw, true, pf->led_status, 0);
2345                 break;
2346         case ETHTOOL_ID_OFF:
2347                 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS))
2348                         i40e_led_set(hw, 0x0, false);
2349                 else
2350                         ret = i40e_led_set_phy(hw, false, pf->led_status, 0);
2351                 break;
2352         case ETHTOOL_ID_INACTIVE:
2353                 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) {
2354                         i40e_led_set(hw, pf->led_status, false);
2355                 } else {
2356                         ret = i40e_led_set_phy(hw, false, pf->led_status,
2357                                                (pf->phy_led_val |
2358                                                I40E_PHY_LED_MODE_ORIG));
2359                         if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE))
2360                                 i40e_aq_set_phy_debug(hw, 0, NULL);
2361                 }
2362                 break;
2363         default:
2364                 break;
2365         }
2366                 if (ret)
2367                         return -ENOENT;
2368                 else
2369                         return 0;
2370 }
2371
2372 /* NOTE: i40e hardware uses a conversion factor of 2 for Interrupt
2373  * Throttle Rate (ITR) ie. ITR(1) = 2us ITR(10) = 20 us, and also
2374  * 125us (8000 interrupts per second) == ITR(62)
2375  */
2376
2377 /**
2378  * __i40e_get_coalesce - get per-queue coalesce settings
2379  * @netdev: the netdev to check
2380  * @ec: ethtool coalesce data structure
2381  * @queue: which queue to pick
2382  *
2383  * Gets the per-queue settings for coalescence. Specifically Rx and Tx usecs
2384  * are per queue. If queue is <0 then we default to queue 0 as the
2385  * representative value.
2386  **/
2387 static int __i40e_get_coalesce(struct net_device *netdev,
2388                                struct ethtool_coalesce *ec,
2389                                int queue)
2390 {
2391         struct i40e_netdev_priv *np = netdev_priv(netdev);
2392         struct i40e_ring *rx_ring, *tx_ring;
2393         struct i40e_vsi *vsi = np->vsi;
2394
2395         ec->tx_max_coalesced_frames_irq = vsi->work_limit;
2396         ec->rx_max_coalesced_frames_irq = vsi->work_limit;
2397
2398         /* rx and tx usecs has per queue value. If user doesn't specify the
2399          * queue, return queue 0's value to represent.
2400          */
2401         if (queue < 0)
2402                 queue = 0;
2403         else if (queue >= vsi->num_queue_pairs)
2404                 return -EINVAL;
2405
2406         rx_ring = vsi->rx_rings[queue];
2407         tx_ring = vsi->tx_rings[queue];
2408
2409         if (ITR_IS_DYNAMIC(rx_ring->itr_setting))
2410                 ec->use_adaptive_rx_coalesce = 1;
2411
2412         if (ITR_IS_DYNAMIC(tx_ring->itr_setting))
2413                 ec->use_adaptive_tx_coalesce = 1;
2414
2415         ec->rx_coalesce_usecs = rx_ring->itr_setting & ~I40E_ITR_DYNAMIC;
2416         ec->tx_coalesce_usecs = tx_ring->itr_setting & ~I40E_ITR_DYNAMIC;
2417
2418         /* we use the _usecs_high to store/set the interrupt rate limit
2419          * that the hardware supports, that almost but not quite
2420          * fits the original intent of the ethtool variable,
2421          * the rx_coalesce_usecs_high limits total interrupts
2422          * per second from both tx/rx sources.
2423          */
2424         ec->rx_coalesce_usecs_high = vsi->int_rate_limit;
2425         ec->tx_coalesce_usecs_high = vsi->int_rate_limit;
2426
2427         return 0;
2428 }
2429
2430 /**
2431  * i40e_get_coalesce - get a netdev's coalesce settings
2432  * @netdev: the netdev to check
2433  * @ec: ethtool coalesce data structure
2434  *
2435  * Gets the coalesce settings for a particular netdev. Note that if user has
2436  * modified per-queue settings, this only guarantees to represent queue 0. See
2437  * __i40e_get_coalesce for more details.
2438  **/
2439 static int i40e_get_coalesce(struct net_device *netdev,
2440                              struct ethtool_coalesce *ec)
2441 {
2442         return __i40e_get_coalesce(netdev, ec, -1);
2443 }
2444
2445 /**
2446  * i40e_get_per_queue_coalesce - gets coalesce settings for particular queue
2447  * @netdev: netdev structure
2448  * @ec: ethtool's coalesce settings
2449  * @queue: the particular queue to read
2450  *
2451  * Will read a specific queue's coalesce settings
2452  **/
2453 static int i40e_get_per_queue_coalesce(struct net_device *netdev, u32 queue,
2454                                        struct ethtool_coalesce *ec)
2455 {
2456         return __i40e_get_coalesce(netdev, ec, queue);
2457 }
2458
2459 /**
2460  * i40e_set_itr_per_queue - set ITR values for specific queue
2461  * @vsi: the VSI to set values for
2462  * @ec: coalesce settings from ethtool
2463  * @queue: the queue to modify
2464  *
2465  * Change the ITR settings for a specific queue.
2466  **/
2467 static void i40e_set_itr_per_queue(struct i40e_vsi *vsi,
2468                                    struct ethtool_coalesce *ec,
2469                                    int queue)
2470 {
2471         struct i40e_ring *rx_ring = vsi->rx_rings[queue];
2472         struct i40e_ring *tx_ring = vsi->tx_rings[queue];
2473         struct i40e_pf *pf = vsi->back;
2474         struct i40e_hw *hw = &pf->hw;
2475         struct i40e_q_vector *q_vector;
2476         u16 intrl;
2477
2478         intrl = i40e_intrl_usec_to_reg(vsi->int_rate_limit);
2479
2480         rx_ring->itr_setting = ITR_REG_ALIGN(ec->rx_coalesce_usecs);
2481         tx_ring->itr_setting = ITR_REG_ALIGN(ec->tx_coalesce_usecs);
2482
2483         if (ec->use_adaptive_rx_coalesce)
2484                 rx_ring->itr_setting |= I40E_ITR_DYNAMIC;
2485         else
2486                 rx_ring->itr_setting &= ~I40E_ITR_DYNAMIC;
2487
2488         if (ec->use_adaptive_tx_coalesce)
2489                 tx_ring->itr_setting |= I40E_ITR_DYNAMIC;
2490         else
2491                 tx_ring->itr_setting &= ~I40E_ITR_DYNAMIC;
2492
2493         q_vector = rx_ring->q_vector;
2494         q_vector->rx.target_itr = ITR_TO_REG(rx_ring->itr_setting);
2495
2496         q_vector = tx_ring->q_vector;
2497         q_vector->tx.target_itr = ITR_TO_REG(tx_ring->itr_setting);
2498
2499         /* The interrupt handler itself will take care of programming
2500          * the Tx and Rx ITR values based on the values we have entered
2501          * into the q_vector, no need to write the values now.
2502          */
2503
2504         wr32(hw, I40E_PFINT_RATEN(q_vector->reg_idx), intrl);
2505         i40e_flush(hw);
2506 }
2507
2508 /**
2509  * __i40e_set_coalesce - set coalesce settings for particular queue
2510  * @netdev: the netdev to change
2511  * @ec: ethtool coalesce settings
2512  * @queue: the queue to change
2513  *
2514  * Sets the coalesce settings for a particular queue.
2515  **/
2516 static int __i40e_set_coalesce(struct net_device *netdev,
2517                                struct ethtool_coalesce *ec,
2518                                int queue)
2519 {
2520         struct i40e_netdev_priv *np = netdev_priv(netdev);
2521         u16 intrl_reg, cur_rx_itr, cur_tx_itr;
2522         struct i40e_vsi *vsi = np->vsi;
2523         struct i40e_pf *pf = vsi->back;
2524         int i;
2525
2526         if (ec->tx_max_coalesced_frames_irq || ec->rx_max_coalesced_frames_irq)
2527                 vsi->work_limit = ec->tx_max_coalesced_frames_irq;
2528
2529         if (queue < 0) {
2530                 cur_rx_itr = vsi->rx_rings[0]->itr_setting;
2531                 cur_tx_itr = vsi->tx_rings[0]->itr_setting;
2532         } else if (queue < vsi->num_queue_pairs) {
2533                 cur_rx_itr = vsi->rx_rings[queue]->itr_setting;
2534                 cur_tx_itr = vsi->tx_rings[queue]->itr_setting;
2535         } else {
2536                 netif_info(pf, drv, netdev, "Invalid queue value, queue range is 0 - %d\n",
2537                            vsi->num_queue_pairs - 1);
2538                 return -EINVAL;
2539         }
2540
2541         cur_tx_itr &= ~I40E_ITR_DYNAMIC;
2542         cur_rx_itr &= ~I40E_ITR_DYNAMIC;
2543
2544         /* tx_coalesce_usecs_high is ignored, use rx-usecs-high instead */
2545         if (ec->tx_coalesce_usecs_high != vsi->int_rate_limit) {
2546                 netif_info(pf, drv, netdev, "tx-usecs-high is not used, please program rx-usecs-high\n");
2547                 return -EINVAL;
2548         }
2549
2550         if (ec->rx_coalesce_usecs_high > INTRL_REG_TO_USEC(I40E_MAX_INTRL)) {
2551                 netif_info(pf, drv, netdev, "Invalid value, rx-usecs-high range is 0-%lu\n",
2552                            INTRL_REG_TO_USEC(I40E_MAX_INTRL));
2553                 return -EINVAL;
2554         }
2555
2556         if (ec->rx_coalesce_usecs != cur_rx_itr &&
2557             ec->use_adaptive_rx_coalesce) {
2558                 netif_info(pf, drv, netdev, "RX interrupt moderation cannot be changed if adaptive-rx is enabled.\n");
2559                 return -EINVAL;
2560         }
2561
2562         if (ec->rx_coalesce_usecs > I40E_MAX_ITR) {
2563                 netif_info(pf, drv, netdev, "Invalid value, rx-usecs range is 0-8160\n");
2564                 return -EINVAL;
2565         }
2566
2567         if (ec->tx_coalesce_usecs != cur_tx_itr &&
2568             ec->use_adaptive_tx_coalesce) {
2569                 netif_info(pf, drv, netdev, "TX interrupt moderation cannot be changed if adaptive-tx is enabled.\n");
2570                 return -EINVAL;
2571         }
2572
2573         if (ec->tx_coalesce_usecs > I40E_MAX_ITR) {
2574                 netif_info(pf, drv, netdev, "Invalid value, tx-usecs range is 0-8160\n");
2575                 return -EINVAL;
2576         }
2577
2578         if (ec->use_adaptive_rx_coalesce && !cur_rx_itr)
2579                 ec->rx_coalesce_usecs = I40E_MIN_ITR;
2580
2581         if (ec->use_adaptive_tx_coalesce && !cur_tx_itr)
2582                 ec->tx_coalesce_usecs = I40E_MIN_ITR;
2583
2584         intrl_reg = i40e_intrl_usec_to_reg(ec->rx_coalesce_usecs_high);
2585         vsi->int_rate_limit = INTRL_REG_TO_USEC(intrl_reg);
2586         if (vsi->int_rate_limit != ec->rx_coalesce_usecs_high) {
2587                 netif_info(pf, drv, netdev, "Interrupt rate limit rounded down to %d\n",
2588                            vsi->int_rate_limit);
2589         }
2590
2591         /* rx and tx usecs has per queue value. If user doesn't specify the
2592          * queue, apply to all queues.
2593          */
2594         if (queue < 0) {
2595                 for (i = 0; i < vsi->num_queue_pairs; i++)
2596                         i40e_set_itr_per_queue(vsi, ec, i);
2597         } else {
2598                 i40e_set_itr_per_queue(vsi, ec, queue);
2599         }
2600
2601         return 0;
2602 }
2603
2604 /**
2605  * i40e_set_coalesce - set coalesce settings for every queue on the netdev
2606  * @netdev: the netdev to change
2607  * @ec: ethtool coalesce settings
2608  *
2609  * This will set each queue to the same coalesce settings.
2610  **/
2611 static int i40e_set_coalesce(struct net_device *netdev,
2612                              struct ethtool_coalesce *ec)
2613 {
2614         return __i40e_set_coalesce(netdev, ec, -1);
2615 }
2616
2617 /**
2618  * i40e_set_per_queue_coalesce - set specific queue's coalesce settings
2619  * @netdev: the netdev to change
2620  * @ec: ethtool's coalesce settings
2621  * @queue: the queue to change
2622  *
2623  * Sets the specified queue's coalesce settings.
2624  **/
2625 static int i40e_set_per_queue_coalesce(struct net_device *netdev, u32 queue,
2626                                        struct ethtool_coalesce *ec)
2627 {
2628         return __i40e_set_coalesce(netdev, ec, queue);
2629 }
2630
2631 /**
2632  * i40e_get_rss_hash_opts - Get RSS hash Input Set for each flow type
2633  * @pf: pointer to the physical function struct
2634  * @cmd: ethtool rxnfc command
2635  *
2636  * Returns Success if the flow is supported, else Invalid Input.
2637  **/
2638 static int i40e_get_rss_hash_opts(struct i40e_pf *pf, struct ethtool_rxnfc *cmd)
2639 {
2640         struct i40e_hw *hw = &pf->hw;
2641         u8 flow_pctype = 0;
2642         u64 i_set = 0;
2643
2644         cmd->data = 0;
2645
2646         switch (cmd->flow_type) {
2647         case TCP_V4_FLOW:
2648                 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_TCP;
2649                 break;
2650         case UDP_V4_FLOW:
2651                 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_UDP;
2652                 break;
2653         case TCP_V6_FLOW:
2654                 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_TCP;
2655                 break;
2656         case UDP_V6_FLOW:
2657                 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_UDP;
2658                 break;
2659         case SCTP_V4_FLOW:
2660         case AH_ESP_V4_FLOW:
2661         case AH_V4_FLOW:
2662         case ESP_V4_FLOW:
2663         case IPV4_FLOW:
2664         case SCTP_V6_FLOW:
2665         case AH_ESP_V6_FLOW:
2666         case AH_V6_FLOW:
2667         case ESP_V6_FLOW:
2668         case IPV6_FLOW:
2669                 /* Default is src/dest for IP, no matter the L4 hashing */
2670                 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
2671                 break;
2672         default:
2673                 return -EINVAL;
2674         }
2675
2676         /* Read flow based hash input set register */
2677         if (flow_pctype) {
2678                 i_set = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0,
2679                                               flow_pctype)) |
2680                         ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1,
2681                                                flow_pctype)) << 32);
2682         }
2683
2684         /* Process bits of hash input set */
2685         if (i_set) {
2686                 if (i_set & I40E_L4_SRC_MASK)
2687                         cmd->data |= RXH_L4_B_0_1;
2688                 if (i_set & I40E_L4_DST_MASK)
2689                         cmd->data |= RXH_L4_B_2_3;
2690
2691                 if (cmd->flow_type == TCP_V4_FLOW ||
2692                     cmd->flow_type == UDP_V4_FLOW) {
2693                         if (i_set & I40E_L3_SRC_MASK)
2694                                 cmd->data |= RXH_IP_SRC;
2695                         if (i_set & I40E_L3_DST_MASK)
2696                                 cmd->data |= RXH_IP_DST;
2697                 } else if (cmd->flow_type == TCP_V6_FLOW ||
2698                           cmd->flow_type == UDP_V6_FLOW) {
2699                         if (i_set & I40E_L3_V6_SRC_MASK)
2700                                 cmd->data |= RXH_IP_SRC;
2701                         if (i_set & I40E_L3_V6_DST_MASK)
2702                                 cmd->data |= RXH_IP_DST;
2703                 }
2704         }
2705
2706         return 0;
2707 }
2708
2709 /**
2710  * i40e_check_mask - Check whether a mask field is set
2711  * @mask: the full mask value
2712  * @field: mask of the field to check
2713  *
2714  * If the given mask is fully set, return positive value. If the mask for the
2715  * field is fully unset, return zero. Otherwise return a negative error code.
2716  **/
2717 static int i40e_check_mask(u64 mask, u64 field)
2718 {
2719         u64 value = mask & field;
2720
2721         if (value == field)
2722                 return 1;
2723         else if (!value)
2724                 return 0;
2725         else
2726                 return -1;
2727 }
2728
2729 /**
2730  * i40e_parse_rx_flow_user_data - Deconstruct user-defined data
2731  * @fsp: pointer to rx flow specification
2732  * @data: pointer to userdef data structure for storage
2733  *
2734  * Read the user-defined data and deconstruct the value into a structure. No
2735  * other code should read the user-defined data, so as to ensure that every
2736  * place consistently reads the value correctly.
2737  *
2738  * The user-defined field is a 64bit Big Endian format value, which we
2739  * deconstruct by reading bits or bit fields from it. Single bit flags shall
2740  * be defined starting from the highest bits, while small bit field values
2741  * shall be defined starting from the lowest bits.
2742  *
2743  * Returns 0 if the data is valid, and non-zero if the userdef data is invalid
2744  * and the filter should be rejected. The data structure will always be
2745  * modified even if FLOW_EXT is not set.
2746  *
2747  **/
2748 static int i40e_parse_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp,
2749                                         struct i40e_rx_flow_userdef *data)
2750 {
2751         u64 value, mask;
2752         int valid;
2753
2754         /* Zero memory first so it's always consistent. */
2755         memset(data, 0, sizeof(*data));
2756
2757         if (!(fsp->flow_type & FLOW_EXT))
2758                 return 0;
2759
2760         value = be64_to_cpu(*((__be64 *)fsp->h_ext.data));
2761         mask = be64_to_cpu(*((__be64 *)fsp->m_ext.data));
2762
2763 #define I40E_USERDEF_FLEX_WORD          GENMASK_ULL(15, 0)
2764 #define I40E_USERDEF_FLEX_OFFSET        GENMASK_ULL(31, 16)
2765 #define I40E_USERDEF_FLEX_FILTER        GENMASK_ULL(31, 0)
2766
2767         valid = i40e_check_mask(mask, I40E_USERDEF_FLEX_FILTER);
2768         if (valid < 0) {
2769                 return -EINVAL;
2770         } else if (valid) {
2771                 data->flex_word = value & I40E_USERDEF_FLEX_WORD;
2772                 data->flex_offset =
2773                         (value & I40E_USERDEF_FLEX_OFFSET) >> 16;
2774                 data->flex_filter = true;
2775         }
2776
2777         return 0;
2778 }
2779
2780 /**
2781  * i40e_fill_rx_flow_user_data - Fill in user-defined data field
2782  * @fsp: pointer to rx_flow specification
2783  * @data: pointer to return userdef data
2784  *
2785  * Reads the userdef data structure and properly fills in the user defined
2786  * fields of the rx_flow_spec.
2787  **/
2788 static void i40e_fill_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp,
2789                                         struct i40e_rx_flow_userdef *data)
2790 {
2791         u64 value = 0, mask = 0;
2792
2793         if (data->flex_filter) {
2794                 value |= data->flex_word;
2795                 value |= (u64)data->flex_offset << 16;
2796                 mask |= I40E_USERDEF_FLEX_FILTER;
2797         }
2798
2799         if (value || mask)
2800                 fsp->flow_type |= FLOW_EXT;
2801
2802         *((__be64 *)fsp->h_ext.data) = cpu_to_be64(value);
2803         *((__be64 *)fsp->m_ext.data) = cpu_to_be64(mask);
2804 }
2805
2806 /**
2807  * i40e_get_ethtool_fdir_all - Populates the rule count of a command
2808  * @pf: Pointer to the physical function struct
2809  * @cmd: The command to get or set Rx flow classification rules
2810  * @rule_locs: Array of used rule locations
2811  *
2812  * This function populates both the total and actual rule count of
2813  * the ethtool flow classification command
2814  *
2815  * Returns 0 on success or -EMSGSIZE if entry not found
2816  **/
2817 static int i40e_get_ethtool_fdir_all(struct i40e_pf *pf,
2818                                      struct ethtool_rxnfc *cmd,
2819                                      u32 *rule_locs)
2820 {
2821         struct i40e_fdir_filter *rule;
2822         struct hlist_node *node2;
2823         int cnt = 0;
2824
2825         /* report total rule count */
2826         cmd->data = i40e_get_fd_cnt_all(pf);
2827
2828         hlist_for_each_entry_safe(rule, node2,
2829                                   &pf->fdir_filter_list, fdir_node) {
2830                 if (cnt == cmd->rule_cnt)
2831                         return -EMSGSIZE;
2832
2833                 rule_locs[cnt] = rule->fd_id;
2834                 cnt++;
2835         }
2836
2837         cmd->rule_cnt = cnt;
2838
2839         return 0;
2840 }
2841
2842 /**
2843  * i40e_get_ethtool_fdir_entry - Look up a filter based on Rx flow
2844  * @pf: Pointer to the physical function struct
2845  * @cmd: The command to get or set Rx flow classification rules
2846  *
2847  * This function looks up a filter based on the Rx flow classification
2848  * command and fills the flow spec info for it if found
2849  *
2850  * Returns 0 on success or -EINVAL if filter not found
2851  **/
2852 static int i40e_get_ethtool_fdir_entry(struct i40e_pf *pf,
2853                                        struct ethtool_rxnfc *cmd)
2854 {
2855         struct ethtool_rx_flow_spec *fsp =
2856                         (struct ethtool_rx_flow_spec *)&cmd->fs;
2857         struct i40e_rx_flow_userdef userdef = {0};
2858         struct i40e_fdir_filter *rule = NULL;
2859         struct hlist_node *node2;
2860         u64 input_set;
2861         u16 index;
2862
2863         hlist_for_each_entry_safe(rule, node2,
2864                                   &pf->fdir_filter_list, fdir_node) {
2865                 if (fsp->location <= rule->fd_id)
2866                         break;
2867         }
2868
2869         if (!rule || fsp->location != rule->fd_id)
2870                 return -EINVAL;
2871
2872         fsp->flow_type = rule->flow_type;
2873         if (fsp->flow_type == IP_USER_FLOW) {
2874                 fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4;
2875                 fsp->h_u.usr_ip4_spec.proto = 0;
2876                 fsp->m_u.usr_ip4_spec.proto = 0;
2877         }
2878
2879         /* Reverse the src and dest notion, since the HW views them from
2880          * Tx perspective where as the user expects it from Rx filter view.
2881          */
2882         fsp->h_u.tcp_ip4_spec.psrc = rule->dst_port;
2883         fsp->h_u.tcp_ip4_spec.pdst = rule->src_port;
2884         fsp->h_u.tcp_ip4_spec.ip4src = rule->dst_ip;
2885         fsp->h_u.tcp_ip4_spec.ip4dst = rule->src_ip;
2886
2887         switch (rule->flow_type) {
2888         case SCTP_V4_FLOW:
2889                 index = I40E_FILTER_PCTYPE_NONF_IPV4_SCTP;
2890                 break;
2891         case TCP_V4_FLOW:
2892                 index = I40E_FILTER_PCTYPE_NONF_IPV4_TCP;
2893                 break;
2894         case UDP_V4_FLOW:
2895                 index = I40E_FILTER_PCTYPE_NONF_IPV4_UDP;
2896                 break;
2897         case IP_USER_FLOW:
2898                 index = I40E_FILTER_PCTYPE_NONF_IPV4_OTHER;
2899                 break;
2900         default:
2901                 /* If we have stored a filter with a flow type not listed here
2902                  * it is almost certainly a driver bug. WARN(), and then
2903                  * assign the input_set as if all fields are enabled to avoid
2904                  * reading unassigned memory.
2905                  */
2906                 WARN(1, "Missing input set index for flow_type %d\n",
2907                      rule->flow_type);
2908                 input_set = 0xFFFFFFFFFFFFFFFFULL;
2909                 goto no_input_set;
2910         }
2911
2912         input_set = i40e_read_fd_input_set(pf, index);
2913
2914 no_input_set:
2915         if (input_set & I40E_L3_SRC_MASK)
2916                 fsp->m_u.tcp_ip4_spec.ip4src = htonl(0xFFFFFFFF);
2917
2918         if (input_set & I40E_L3_DST_MASK)
2919                 fsp->m_u.tcp_ip4_spec.ip4dst = htonl(0xFFFFFFFF);
2920
2921         if (input_set & I40E_L4_SRC_MASK)
2922                 fsp->m_u.tcp_ip4_spec.psrc = htons(0xFFFF);
2923
2924         if (input_set & I40E_L4_DST_MASK)
2925                 fsp->m_u.tcp_ip4_spec.pdst = htons(0xFFFF);
2926
2927         if (rule->dest_ctl == I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET)
2928                 fsp->ring_cookie = RX_CLS_FLOW_DISC;
2929         else
2930                 fsp->ring_cookie = rule->q_index;
2931
2932         if (rule->dest_vsi != pf->vsi[pf->lan_vsi]->id) {
2933                 struct i40e_vsi *vsi;
2934
2935                 vsi = i40e_find_vsi_from_id(pf, rule->dest_vsi);
2936                 if (vsi && vsi->type == I40E_VSI_SRIOV) {
2937                         /* VFs are zero-indexed by the driver, but ethtool
2938                          * expects them to be one-indexed, so add one here
2939                          */
2940                         u64 ring_vf = vsi->vf_id + 1;
2941
2942                         ring_vf <<= ETHTOOL_RX_FLOW_SPEC_RING_VF_OFF;
2943                         fsp->ring_cookie |= ring_vf;
2944                 }
2945         }
2946
2947         if (rule->flex_filter) {
2948                 userdef.flex_filter = true;
2949                 userdef.flex_word = be16_to_cpu(rule->flex_word);
2950                 userdef.flex_offset = rule->flex_offset;
2951         }
2952
2953         i40e_fill_rx_flow_user_data(fsp, &userdef);
2954
2955         return 0;
2956 }
2957
2958 /**
2959  * i40e_get_rxnfc - command to get RX flow classification rules
2960  * @netdev: network interface device structure
2961  * @cmd: ethtool rxnfc command
2962  * @rule_locs: pointer to store rule data
2963  *
2964  * Returns Success if the command is supported.
2965  **/
2966 static int i40e_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd,
2967                           u32 *rule_locs)
2968 {
2969         struct i40e_netdev_priv *np = netdev_priv(netdev);
2970         struct i40e_vsi *vsi = np->vsi;
2971         struct i40e_pf *pf = vsi->back;
2972         int ret = -EOPNOTSUPP;
2973
2974         switch (cmd->cmd) {
2975         case ETHTOOL_GRXRINGS:
2976                 cmd->data = vsi->rss_size;
2977                 ret = 0;
2978                 break;
2979         case ETHTOOL_GRXFH:
2980                 ret = i40e_get_rss_hash_opts(pf, cmd);
2981                 break;
2982         case ETHTOOL_GRXCLSRLCNT:
2983                 cmd->rule_cnt = pf->fdir_pf_active_filters;
2984                 /* report total rule count */
2985                 cmd->data = i40e_get_fd_cnt_all(pf);
2986                 ret = 0;
2987                 break;
2988         case ETHTOOL_GRXCLSRULE:
2989                 ret = i40e_get_ethtool_fdir_entry(pf, cmd);
2990                 break;
2991         case ETHTOOL_GRXCLSRLALL:
2992                 ret = i40e_get_ethtool_fdir_all(pf, cmd, rule_locs);
2993                 break;
2994         default:
2995                 break;
2996         }
2997
2998         return ret;
2999 }
3000
3001 /**
3002  * i40e_get_rss_hash_bits - Read RSS Hash bits from register
3003  * @nfc: pointer to user request
3004  * @i_setc: bits currently set
3005  *
3006  * Returns value of bits to be set per user request
3007  **/
3008 static u64 i40e_get_rss_hash_bits(struct ethtool_rxnfc *nfc, u64 i_setc)
3009 {
3010         u64 i_set = i_setc;
3011         u64 src_l3 = 0, dst_l3 = 0;
3012
3013         if (nfc->data & RXH_L4_B_0_1)
3014                 i_set |= I40E_L4_SRC_MASK;
3015         else
3016                 i_set &= ~I40E_L4_SRC_MASK;
3017         if (nfc->data & RXH_L4_B_2_3)
3018                 i_set |= I40E_L4_DST_MASK;
3019         else
3020                 i_set &= ~I40E_L4_DST_MASK;
3021
3022         if (nfc->flow_type == TCP_V6_FLOW || nfc->flow_type == UDP_V6_FLOW) {
3023                 src_l3 = I40E_L3_V6_SRC_MASK;
3024                 dst_l3 = I40E_L3_V6_DST_MASK;
3025         } else if (nfc->flow_type == TCP_V4_FLOW ||
3026                   nfc->flow_type == UDP_V4_FLOW) {
3027                 src_l3 = I40E_L3_SRC_MASK;
3028                 dst_l3 = I40E_L3_DST_MASK;
3029         } else {
3030                 /* Any other flow type are not supported here */
3031                 return i_set;
3032         }
3033
3034         if (nfc->data & RXH_IP_SRC)
3035                 i_set |= src_l3;
3036         else
3037                 i_set &= ~src_l3;
3038         if (nfc->data & RXH_IP_DST)
3039                 i_set |= dst_l3;
3040         else
3041                 i_set &= ~dst_l3;
3042
3043         return i_set;
3044 }
3045
3046 /**
3047  * i40e_set_rss_hash_opt - Enable/Disable flow types for RSS hash
3048  * @pf: pointer to the physical function struct
3049  * @nfc: ethtool rxnfc command
3050  *
3051  * Returns Success if the flow input set is supported.
3052  **/
3053 static int i40e_set_rss_hash_opt(struct i40e_pf *pf, struct ethtool_rxnfc *nfc)
3054 {
3055         struct i40e_hw *hw = &pf->hw;
3056         u64 hena = (u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(0)) |
3057                    ((u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(1)) << 32);
3058         u8 flow_pctype = 0;
3059         u64 i_set, i_setc;
3060
3061         if (pf->flags & I40E_FLAG_MFP_ENABLED) {
3062                 dev_err(&pf->pdev->dev,
3063                         "Change of RSS hash input set is not supported when MFP mode is enabled\n");
3064                 return -EOPNOTSUPP;
3065         }
3066
3067         /* RSS does not support anything other than hashing
3068          * to queues on src and dst IPs and ports
3069          */
3070         if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST |
3071                           RXH_L4_B_0_1 | RXH_L4_B_2_3))
3072                 return -EINVAL;
3073
3074         switch (nfc->flow_type) {
3075         case TCP_V4_FLOW:
3076                 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_TCP;
3077                 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE)
3078                         hena |=
3079                           BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK);
3080                 break;
3081         case TCP_V6_FLOW:
3082                 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_TCP;
3083                 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE)
3084                         hena |=
3085                           BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK);
3086                 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE)
3087                         hena |=
3088                           BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_TCP_SYN_NO_ACK);
3089                 break;
3090         case UDP_V4_FLOW:
3091                 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_UDP;
3092                 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE)
3093                         hena |=
3094                           BIT_ULL(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV4_UDP) |
3095                           BIT_ULL(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV4_UDP);
3096
3097                 hena |= BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4);
3098                 break;
3099         case UDP_V6_FLOW:
3100                 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_UDP;
3101                 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE)
3102                         hena |=
3103                           BIT_ULL(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV6_UDP) |
3104                           BIT_ULL(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV6_UDP);
3105
3106                 hena |= BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6);
3107                 break;
3108         case AH_ESP_V4_FLOW:
3109         case AH_V4_FLOW:
3110         case ESP_V4_FLOW:
3111         case SCTP_V4_FLOW:
3112                 if ((nfc->data & RXH_L4_B_0_1) ||
3113                     (nfc->data & RXH_L4_B_2_3))
3114                         return -EINVAL;
3115                 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER);
3116                 break;
3117         case AH_ESP_V6_FLOW:
3118         case AH_V6_FLOW:
3119         case ESP_V6_FLOW:
3120         case SCTP_V6_FLOW:
3121                 if ((nfc->data & RXH_L4_B_0_1) ||
3122                     (nfc->data & RXH_L4_B_2_3))
3123                         return -EINVAL;
3124                 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER);
3125                 break;
3126         case IPV4_FLOW:
3127                 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER) |
3128                         BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4);
3129                 break;
3130         case IPV6_FLOW:
3131                 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER) |
3132                         BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6);
3133                 break;
3134         default:
3135                 return -EINVAL;
3136         }
3137
3138         if (flow_pctype) {
3139                 i_setc = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0,
3140                                                flow_pctype)) |
3141                         ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1,
3142                                                flow_pctype)) << 32);
3143                 i_set = i40e_get_rss_hash_bits(nfc, i_setc);
3144                 i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, flow_pctype),
3145                                   (u32)i_set);
3146                 i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, flow_pctype),
3147                                   (u32)(i_set >> 32));
3148                 hena |= BIT_ULL(flow_pctype);
3149         }
3150
3151         i40e_write_rx_ctl(hw, I40E_PFQF_HENA(0), (u32)hena);
3152         i40e_write_rx_ctl(hw, I40E_PFQF_HENA(1), (u32)(hena >> 32));
3153         i40e_flush(hw);
3154
3155         return 0;
3156 }
3157
3158 /**
3159  * i40e_update_ethtool_fdir_entry - Updates the fdir filter entry
3160  * @vsi: Pointer to the targeted VSI
3161  * @input: The filter to update or NULL to indicate deletion
3162  * @sw_idx: Software index to the filter
3163  * @cmd: The command to get or set Rx flow classification rules
3164  *
3165  * This function updates (or deletes) a Flow Director entry from
3166  * the hlist of the corresponding PF
3167  *
3168  * Returns 0 on success
3169  **/
3170 static int i40e_update_ethtool_fdir_entry(struct i40e_vsi *vsi,
3171                                           struct i40e_fdir_filter *input,
3172                                           u16 sw_idx,
3173                                           struct ethtool_rxnfc *cmd)
3174 {
3175         struct i40e_fdir_filter *rule, *parent;
3176         struct i40e_pf *pf = vsi->back;
3177         struct hlist_node *node2;
3178         int err = -EINVAL;
3179
3180         parent = NULL;
3181         rule = NULL;
3182
3183         hlist_for_each_entry_safe(rule, node2,
3184                                   &pf->fdir_filter_list, fdir_node) {
3185                 /* hash found, or no matching entry */
3186                 if (rule->fd_id >= sw_idx)
3187                         break;
3188                 parent = rule;
3189         }
3190
3191         /* if there is an old rule occupying our place remove it */
3192         if (rule && (rule->fd_id == sw_idx)) {
3193                 /* Remove this rule, since we're either deleting it, or
3194                  * replacing it.
3195                  */
3196                 err = i40e_add_del_fdir(vsi, rule, false);
3197                 hlist_del(&rule->fdir_node);
3198                 kfree(rule);
3199                 pf->fdir_pf_active_filters--;
3200         }
3201
3202         /* If we weren't given an input, this is a delete, so just return the
3203          * error code indicating if there was an entry at the requested slot
3204          */
3205         if (!input)
3206                 return err;
3207
3208         /* Otherwise, install the new rule as requested */
3209         INIT_HLIST_NODE(&input->fdir_node);
3210
3211         /* add filter to the list */
3212         if (parent)
3213                 hlist_add_behind(&input->fdir_node, &parent->fdir_node);
3214         else
3215                 hlist_add_head(&input->fdir_node,
3216                                &pf->fdir_filter_list);
3217
3218         /* update counts */
3219         pf->fdir_pf_active_filters++;
3220
3221         return 0;
3222 }
3223
3224 /**
3225  * i40e_prune_flex_pit_list - Cleanup unused entries in FLX_PIT table
3226  * @pf: pointer to PF structure
3227  *
3228  * This function searches the list of filters and determines which FLX_PIT
3229  * entries are still required. It will prune any entries which are no longer
3230  * in use after the deletion.
3231  **/
3232 static void i40e_prune_flex_pit_list(struct i40e_pf *pf)
3233 {
3234         struct i40e_flex_pit *entry, *tmp;
3235         struct i40e_fdir_filter *rule;
3236
3237         /* First, we'll check the l3 table */
3238         list_for_each_entry_safe(entry, tmp, &pf->l3_flex_pit_list, list) {
3239                 bool found = false;
3240
3241                 hlist_for_each_entry(rule, &pf->fdir_filter_list, fdir_node) {
3242                         if (rule->flow_type != IP_USER_FLOW)
3243                                 continue;
3244                         if (rule->flex_filter &&
3245                             rule->flex_offset == entry->src_offset) {
3246                                 found = true;
3247                                 break;
3248                         }
3249                 }
3250
3251                 /* If we didn't find the filter, then we can prune this entry
3252                  * from the list.
3253                  */
3254                 if (!found) {
3255                         list_del(&entry->list);
3256                         kfree(entry);
3257                 }
3258         }
3259
3260         /* Followed by the L4 table */
3261         list_for_each_entry_safe(entry, tmp, &pf->l4_flex_pit_list, list) {
3262                 bool found = false;
3263
3264                 hlist_for_each_entry(rule, &pf->fdir_filter_list, fdir_node) {
3265                         /* Skip this filter if it's L3, since we already
3266                          * checked those in the above loop
3267                          */
3268                         if (rule->flow_type == IP_USER_FLOW)
3269                                 continue;
3270                         if (rule->flex_filter &&
3271                             rule->flex_offset == entry->src_offset) {
3272                                 found = true;
3273                                 break;
3274                         }
3275                 }
3276
3277                 /* If we didn't find the filter, then we can prune this entry
3278                  * from the list.
3279                  */
3280                 if (!found) {
3281                         list_del(&entry->list);
3282                         kfree(entry);
3283                 }
3284         }
3285 }
3286
3287 /**
3288  * i40e_del_fdir_entry - Deletes a Flow Director filter entry
3289  * @vsi: Pointer to the targeted VSI
3290  * @cmd: The command to get or set Rx flow classification rules
3291  *
3292  * The function removes a Flow Director filter entry from the
3293  * hlist of the corresponding PF
3294  *
3295  * Returns 0 on success
3296  */
3297 static int i40e_del_fdir_entry(struct i40e_vsi *vsi,
3298                                struct ethtool_rxnfc *cmd)
3299 {
3300         struct ethtool_rx_flow_spec *fsp =
3301                 (struct ethtool_rx_flow_spec *)&cmd->fs;
3302         struct i40e_pf *pf = vsi->back;
3303         int ret = 0;
3304
3305         if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||
3306             test_bit(__I40E_RESET_INTR_RECEIVED, pf->state))
3307                 return -EBUSY;
3308
3309         if (test_bit(__I40E_FD_FLUSH_REQUESTED, pf->state))
3310                 return -EBUSY;
3311
3312         ret = i40e_update_ethtool_fdir_entry(vsi, NULL, fsp->location, cmd);
3313
3314         i40e_prune_flex_pit_list(pf);
3315
3316         i40e_fdir_check_and_reenable(pf);
3317         return ret;
3318 }
3319
3320 /**
3321  * i40e_unused_pit_index - Find an unused PIT index for given list
3322  * @pf: the PF data structure
3323  *
3324  * Find the first unused flexible PIT index entry. We search both the L3 and
3325  * L4 flexible PIT lists so that the returned index is unique and unused by
3326  * either currently programmed L3 or L4 filters. We use a bit field as storage
3327  * to track which indexes are already used.
3328  **/
3329 static u8 i40e_unused_pit_index(struct i40e_pf *pf)
3330 {
3331         unsigned long available_index = 0xFF;
3332         struct i40e_flex_pit *entry;
3333
3334         /* We need to make sure that the new index isn't in use by either L3
3335          * or L4 filters so that IP_USER_FLOW filters can program both L3 and
3336          * L4 to use the same index.
3337          */
3338
3339         list_for_each_entry(entry, &pf->l4_flex_pit_list, list)
3340                 clear_bit(entry->pit_index, &available_index);
3341
3342         list_for_each_entry(entry, &pf->l3_flex_pit_list, list)
3343                 clear_bit(entry->pit_index, &available_index);
3344
3345         return find_first_bit(&available_index, 8);
3346 }
3347
3348 /**
3349  * i40e_find_flex_offset - Find an existing flex src_offset
3350  * @flex_pit_list: L3 or L4 flex PIT list
3351  * @src_offset: new src_offset to find
3352  *
3353  * Searches the flex_pit_list for an existing offset. If no offset is
3354  * currently programmed, then this will return an ERR_PTR if there is no space
3355  * to add a new offset, otherwise it returns NULL.
3356  **/
3357 static
3358 struct i40e_flex_pit *i40e_find_flex_offset(struct list_head *flex_pit_list,
3359                                             u16 src_offset)
3360 {
3361         struct i40e_flex_pit *entry;
3362         int size = 0;
3363
3364         /* Search for the src_offset first. If we find a matching entry
3365          * already programmed, we can simply re-use it.
3366          */
3367         list_for_each_entry(entry, flex_pit_list, list) {
3368                 size++;
3369                 if (entry->src_offset == src_offset)
3370                         return entry;
3371         }
3372
3373         /* If we haven't found an entry yet, then the provided src offset has
3374          * not yet been programmed. We will program the src offset later on,
3375          * but we need to indicate whether there is enough space to do so
3376          * here. We'll make use of ERR_PTR for this purpose.
3377          */
3378         if (size >= I40E_FLEX_PIT_TABLE_SIZE)
3379                 return ERR_PTR(-ENOSPC);
3380
3381         return NULL;
3382 }
3383
3384 /**
3385  * i40e_add_flex_offset - Add src_offset to flex PIT table list
3386  * @flex_pit_list: L3 or L4 flex PIT list
3387  * @src_offset: new src_offset to add
3388  * @pit_index: the PIT index to program
3389  *
3390  * This function programs the new src_offset to the list. It is expected that
3391  * i40e_find_flex_offset has already been tried and returned NULL, indicating
3392  * that this offset is not programmed, and that the list has enough space to
3393  * store another offset.
3394  *
3395  * Returns 0 on success, and negative value on error.
3396  **/
3397 static int i40e_add_flex_offset(struct list_head *flex_pit_list,
3398                                 u16 src_offset,
3399                                 u8 pit_index)
3400 {
3401         struct i40e_flex_pit *new_pit, *entry;
3402
3403         new_pit = kzalloc(sizeof(*entry), GFP_KERNEL);
3404         if (!new_pit)
3405                 return -ENOMEM;
3406
3407         new_pit->src_offset = src_offset;
3408         new_pit->pit_index = pit_index;
3409
3410         /* We need to insert this item such that the list is sorted by
3411          * src_offset in ascending order.
3412          */
3413         list_for_each_entry(entry, flex_pit_list, list) {
3414                 if (new_pit->src_offset < entry->src_offset) {
3415                         list_add_tail(&new_pit->list, &entry->list);
3416                         return 0;
3417                 }
3418
3419                 /* If we found an entry with our offset already programmed we
3420                  * can simply return here, after freeing the memory. However,
3421                  * if the pit_index does not match we need to report an error.
3422                  */
3423                 if (new_pit->src_offset == entry->src_offset) {
3424                         int err = 0;
3425
3426                         /* If the PIT index is not the same we can't re-use
3427                          * the entry, so we must report an error.
3428                          */
3429                         if (new_pit->pit_index != entry->pit_index)
3430                                 err = -EINVAL;
3431
3432                         kfree(new_pit);
3433                         return err;
3434                 }
3435         }
3436
3437         /* If we reached here, then we haven't yet added the item. This means
3438          * that we should add the item at the end of the list.
3439          */
3440         list_add_tail(&new_pit->list, flex_pit_list);
3441         return 0;
3442 }
3443
3444 /**
3445  * __i40e_reprogram_flex_pit - Re-program specific FLX_PIT table
3446  * @pf: Pointer to the PF structure
3447  * @flex_pit_list: list of flexible src offsets in use
3448  * @flex_pit_start: index to first entry for this section of the table
3449  *
3450  * In order to handle flexible data, the hardware uses a table of values
3451  * called the FLX_PIT table. This table is used to indicate which sections of
3452  * the input correspond to what PIT index values. Unfortunately, hardware is
3453  * very restrictive about programming this table. Entries must be ordered by
3454  * src_offset in ascending order, without duplicates. Additionally, unused
3455  * entries must be set to the unused index value, and must have valid size and
3456  * length according to the src_offset ordering.
3457  *
3458  * This function will reprogram the FLX_PIT register from a book-keeping
3459  * structure that we guarantee is already ordered correctly, and has no more
3460  * than 3 entries.
3461  *
3462  * To make things easier, we only support flexible values of one word length,
3463  * rather than allowing variable length flexible values.
3464  **/
3465 static void __i40e_reprogram_flex_pit(struct i40e_pf *pf,
3466                                       struct list_head *flex_pit_list,
3467                                       int flex_pit_start)
3468 {
3469         struct i40e_flex_pit *entry = NULL;
3470         u16 last_offset = 0;
3471         int i = 0, j = 0;
3472
3473         /* First, loop over the list of flex PIT entries, and reprogram the
3474          * registers.
3475          */
3476         list_for_each_entry(entry, flex_pit_list, list) {
3477                 /* We have to be careful when programming values for the
3478                  * largest SRC_OFFSET value. It is possible that adding
3479                  * additional empty values at the end would overflow the space
3480                  * for the SRC_OFFSET in the FLX_PIT register. To avoid this,
3481                  * we check here and add the empty values prior to adding the
3482                  * largest value.
3483                  *
3484                  * To determine this, we will use a loop from i+1 to 3, which
3485                  * will determine whether the unused entries would have valid
3486                  * SRC_OFFSET. Note that there cannot be extra entries past
3487                  * this value, because the only valid values would have been
3488                  * larger than I40E_MAX_FLEX_SRC_OFFSET, and thus would not
3489                  * have been added to the list in the first place.
3490                  */
3491                 for (j = i + 1; j < 3; j++) {
3492                         u16 offset = entry->src_offset + j;
3493                         int index = flex_pit_start + i;
3494                         u32 value = I40E_FLEX_PREP_VAL(I40E_FLEX_DEST_UNUSED,
3495                                                        1,
3496                                                        offset - 3);
3497
3498                         if (offset > I40E_MAX_FLEX_SRC_OFFSET) {
3499                                 i40e_write_rx_ctl(&pf->hw,
3500                                                   I40E_PRTQF_FLX_PIT(index),
3501                                                   value);
3502                                 i++;
3503                         }
3504                 }
3505
3506                 /* Now, we can program the actual value into the table */
3507                 i40e_write_rx_ctl(&pf->hw,
3508                                   I40E_PRTQF_FLX_PIT(flex_pit_start + i),
3509                                   I40E_FLEX_PREP_VAL(entry->pit_index + 50,
3510                                                      1,
3511                                                      entry->src_offset));
3512                 i++;
3513         }
3514
3515         /* In order to program the last entries in the table, we need to
3516          * determine the valid offset. If the list is empty, we'll just start
3517          * with 0. Otherwise, we'll start with the last item offset and add 1.
3518          * This ensures that all entries have valid sizes. If we don't do this
3519          * correctly, the hardware will disable flexible field parsing.
3520          */
3521         if (!list_empty(flex_pit_list))
3522                 last_offset = list_prev_entry(entry, list)->src_offset + 1;
3523
3524         for (; i < 3; i++, last_offset++) {
3525                 i40e_write_rx_ctl(&pf->hw,
3526                                   I40E_PRTQF_FLX_PIT(flex_pit_start + i),
3527                                   I40E_FLEX_PREP_VAL(I40E_FLEX_DEST_UNUSED,
3528                                                      1,
3529                                                      last_offset));
3530         }
3531 }
3532
3533 /**
3534  * i40e_reprogram_flex_pit - Reprogram all FLX_PIT tables after input set change
3535  * @pf: pointer to the PF structure
3536  *
3537  * This function reprograms both the L3 and L4 FLX_PIT tables. See the
3538  * internal helper function for implementation details.
3539  **/
3540 static void i40e_reprogram_flex_pit(struct i40e_pf *pf)
3541 {
3542         __i40e_reprogram_flex_pit(pf, &pf->l3_flex_pit_list,
3543                                   I40E_FLEX_PIT_IDX_START_L3);
3544
3545         __i40e_reprogram_flex_pit(pf, &pf->l4_flex_pit_list,
3546                                   I40E_FLEX_PIT_IDX_START_L4);
3547
3548         /* We also need to program the L3 and L4 GLQF ORT register */
3549         i40e_write_rx_ctl(&pf->hw,
3550                           I40E_GLQF_ORT(I40E_L3_GLQF_ORT_IDX),
3551                           I40E_ORT_PREP_VAL(I40E_FLEX_PIT_IDX_START_L3,
3552                                             3, 1));
3553
3554         i40e_write_rx_ctl(&pf->hw,
3555                           I40E_GLQF_ORT(I40E_L4_GLQF_ORT_IDX),
3556                           I40E_ORT_PREP_VAL(I40E_FLEX_PIT_IDX_START_L4,
3557                                             3, 1));
3558 }
3559
3560 /**
3561  * i40e_flow_str - Converts a flow_type into a human readable string
3562  * @fsp: the flow specification
3563  *
3564  * Currently only flow types we support are included here, and the string
3565  * value attempts to match what ethtool would use to configure this flow type.
3566  **/
3567 static const char *i40e_flow_str(struct ethtool_rx_flow_spec *fsp)
3568 {
3569         switch (fsp->flow_type & ~FLOW_EXT) {
3570         case TCP_V4_FLOW:
3571                 return "tcp4";
3572         case UDP_V4_FLOW:
3573                 return "udp4";
3574         case SCTP_V4_FLOW:
3575                 return "sctp4";
3576         case IP_USER_FLOW:
3577                 return "ip4";
3578         default:
3579                 return "unknown";
3580         }
3581 }
3582
3583 /**
3584  * i40e_pit_index_to_mask - Return the FLEX mask for a given PIT index
3585  * @pit_index: PIT index to convert
3586  *
3587  * Returns the mask for a given PIT index. Will return 0 if the pit_index is
3588  * of range.
3589  **/
3590 static u64 i40e_pit_index_to_mask(int pit_index)
3591 {
3592         switch (pit_index) {
3593         case 0:
3594                 return I40E_FLEX_50_MASK;
3595         case 1:
3596                 return I40E_FLEX_51_MASK;
3597         case 2:
3598                 return I40E_FLEX_52_MASK;
3599         case 3:
3600                 return I40E_FLEX_53_MASK;
3601         case 4:
3602                 return I40E_FLEX_54_MASK;
3603         case 5:
3604                 return I40E_FLEX_55_MASK;
3605         case 6:
3606                 return I40E_FLEX_56_MASK;
3607         case 7:
3608                 return I40E_FLEX_57_MASK;
3609         default:
3610                 return 0;
3611         }
3612 }
3613
3614 /**
3615  * i40e_print_input_set - Show changes between two input sets
3616  * @vsi: the vsi being configured
3617  * @old: the old input set
3618  * @new: the new input set
3619  *
3620  * Print the difference between old and new input sets by showing which series
3621  * of words are toggled on or off. Only displays the bits we actually support
3622  * changing.
3623  **/
3624 static void i40e_print_input_set(struct i40e_vsi *vsi, u64 old, u64 new)
3625 {
3626         struct i40e_pf *pf = vsi->back;
3627         bool old_value, new_value;
3628         int i;
3629
3630         old_value = !!(old & I40E_L3_SRC_MASK);
3631         new_value = !!(new & I40E_L3_SRC_MASK);
3632         if (old_value != new_value)
3633                 netif_info(pf, drv, vsi->netdev, "L3 source address: %s -> %s\n",
3634                            old_value ? "ON" : "OFF",
3635                            new_value ? "ON" : "OFF");
3636
3637         old_value = !!(old & I40E_L3_DST_MASK);
3638         new_value = !!(new & I40E_L3_DST_MASK);
3639         if (old_value != new_value)
3640                 netif_info(pf, drv, vsi->netdev, "L3 destination address: %s -> %s\n",
3641                            old_value ? "ON" : "OFF",
3642                            new_value ? "ON" : "OFF");
3643
3644         old_value = !!(old & I40E_L4_SRC_MASK);
3645         new_value = !!(new & I40E_L4_SRC_MASK);
3646         if (old_value != new_value)
3647                 netif_info(pf, drv, vsi->netdev, "L4 source port: %s -> %s\n",
3648                            old_value ? "ON" : "OFF",
3649                            new_value ? "ON" : "OFF");
3650
3651         old_value = !!(old & I40E_L4_DST_MASK);
3652         new_value = !!(new & I40E_L4_DST_MASK);
3653         if (old_value != new_value)
3654                 netif_info(pf, drv, vsi->netdev, "L4 destination port: %s -> %s\n",
3655                            old_value ? "ON" : "OFF",
3656                            new_value ? "ON" : "OFF");
3657
3658         old_value = !!(old & I40E_VERIFY_TAG_MASK);
3659         new_value = !!(new & I40E_VERIFY_TAG_MASK);
3660         if (old_value != new_value)
3661                 netif_info(pf, drv, vsi->netdev, "SCTP verification tag: %s -> %s\n",
3662                            old_value ? "ON" : "OFF",
3663                            new_value ? "ON" : "OFF");
3664
3665         /* Show change of flexible filter entries */
3666         for (i = 0; i < I40E_FLEX_INDEX_ENTRIES; i++) {
3667                 u64 flex_mask = i40e_pit_index_to_mask(i);
3668
3669                 old_value = !!(old & flex_mask);
3670                 new_value = !!(new & flex_mask);
3671                 if (old_value != new_value)
3672                         netif_info(pf, drv, vsi->netdev, "FLEX index %d: %s -> %s\n",
3673                                    i,
3674                                    old_value ? "ON" : "OFF",
3675                                    new_value ? "ON" : "OFF");
3676         }
3677
3678         netif_info(pf, drv, vsi->netdev, "  Current input set: %0llx\n",
3679                    old);
3680         netif_info(pf, drv, vsi->netdev, "Requested input set: %0llx\n",
3681                    new);
3682 }
3683
3684 /**
3685  * i40e_check_fdir_input_set - Check that a given rx_flow_spec mask is valid
3686  * @vsi: pointer to the targeted VSI
3687  * @fsp: pointer to Rx flow specification
3688  * @userdef: userdefined data from flow specification
3689  *
3690  * Ensures that a given ethtool_rx_flow_spec has a valid mask. Some support
3691  * for partial matches exists with a few limitations. First, hardware only
3692  * supports masking by word boundary (2 bytes) and not per individual bit.
3693  * Second, hardware is limited to using one mask for a flow type and cannot
3694  * use a separate mask for each filter.
3695  *
3696  * To support these limitations, if we already have a configured filter for
3697  * the specified type, this function enforces that new filters of the type
3698  * match the configured input set. Otherwise, if we do not have a filter of
3699  * the specified type, we allow the input set to be updated to match the
3700  * desired filter.
3701  *
3702  * To help ensure that administrators understand why filters weren't displayed
3703  * as supported, we print a diagnostic message displaying how the input set
3704  * would change and warning to delete the preexisting filters if required.
3705  *
3706  * Returns 0 on successful input set match, and a negative return code on
3707  * failure.
3708  **/
3709 static int i40e_check_fdir_input_set(struct i40e_vsi *vsi,
3710                                      struct ethtool_rx_flow_spec *fsp,
3711                                      struct i40e_rx_flow_userdef *userdef)
3712 {
3713         struct i40e_pf *pf = vsi->back;
3714         struct ethtool_tcpip4_spec *tcp_ip4_spec;
3715         struct ethtool_usrip4_spec *usr_ip4_spec;
3716         u64 current_mask, new_mask;
3717         bool new_flex_offset = false;
3718         bool flex_l3 = false;
3719         u16 *fdir_filter_count;
3720         u16 index, src_offset = 0;
3721         u8 pit_index = 0;
3722         int err;
3723
3724         switch (fsp->flow_type & ~FLOW_EXT) {
3725         case SCTP_V4_FLOW:
3726                 index = I40E_FILTER_PCTYPE_NONF_IPV4_SCTP;
3727                 fdir_filter_count = &pf->fd_sctp4_filter_cnt;
3728                 break;
3729         case TCP_V4_FLOW:
3730                 index = I40E_FILTER_PCTYPE_NONF_IPV4_TCP;
3731                 fdir_filter_count = &pf->fd_tcp4_filter_cnt;
3732                 break;
3733         case UDP_V4_FLOW:
3734                 index = I40E_FILTER_PCTYPE_NONF_IPV4_UDP;
3735                 fdir_filter_count = &pf->fd_udp4_filter_cnt;
3736                 break;
3737         case IP_USER_FLOW:
3738                 index = I40E_FILTER_PCTYPE_NONF_IPV4_OTHER;
3739                 fdir_filter_count = &pf->fd_ip4_filter_cnt;
3740                 flex_l3 = true;
3741                 break;
3742         default:
3743                 return -EOPNOTSUPP;
3744         }
3745
3746         /* Read the current input set from register memory. */
3747         current_mask = i40e_read_fd_input_set(pf, index);
3748         new_mask = current_mask;
3749
3750         /* Determine, if any, the required changes to the input set in order
3751          * to support the provided mask.
3752          *
3753          * Hardware only supports masking at word (2 byte) granularity and does
3754          * not support full bitwise masking. This implementation simplifies
3755          * even further and only supports fully enabled or fully disabled
3756          * masks for each field, even though we could split the ip4src and
3757          * ip4dst fields.
3758          */
3759         switch (fsp->flow_type & ~FLOW_EXT) {
3760         case SCTP_V4_FLOW:
3761                 new_mask &= ~I40E_VERIFY_TAG_MASK;
3762                 /* Fall through */
3763         case TCP_V4_FLOW:
3764         case UDP_V4_FLOW:
3765                 tcp_ip4_spec = &fsp->m_u.tcp_ip4_spec;
3766
3767                 /* IPv4 source address */
3768                 if (tcp_ip4_spec->ip4src == htonl(0xFFFFFFFF))
3769                         new_mask |= I40E_L3_SRC_MASK;
3770                 else if (!tcp_ip4_spec->ip4src)
3771                         new_mask &= ~I40E_L3_SRC_MASK;
3772                 else
3773                         return -EOPNOTSUPP;
3774
3775                 /* IPv4 destination address */
3776                 if (tcp_ip4_spec->ip4dst == htonl(0xFFFFFFFF))
3777                         new_mask |= I40E_L3_DST_MASK;
3778                 else if (!tcp_ip4_spec->ip4dst)
3779                         new_mask &= ~I40E_L3_DST_MASK;
3780                 else
3781                         return -EOPNOTSUPP;
3782
3783                 /* L4 source port */
3784                 if (tcp_ip4_spec->psrc == htons(0xFFFF))
3785                         new_mask |= I40E_L4_SRC_MASK;
3786                 else if (!tcp_ip4_spec->psrc)
3787                         new_mask &= ~I40E_L4_SRC_MASK;
3788                 else
3789                         return -EOPNOTSUPP;
3790
3791                 /* L4 destination port */
3792                 if (tcp_ip4_spec->pdst == htons(0xFFFF))
3793                         new_mask |= I40E_L4_DST_MASK;
3794                 else if (!tcp_ip4_spec->pdst)
3795                         new_mask &= ~I40E_L4_DST_MASK;
3796                 else
3797                         return -EOPNOTSUPP;
3798
3799                 /* Filtering on Type of Service is not supported. */
3800                 if (tcp_ip4_spec->tos)
3801                         return -EOPNOTSUPP;
3802
3803                 break;
3804         case IP_USER_FLOW:
3805                 usr_ip4_spec = &fsp->m_u.usr_ip4_spec;
3806
3807                 /* IPv4 source address */
3808                 if (usr_ip4_spec->ip4src == htonl(0xFFFFFFFF))
3809                         new_mask |= I40E_L3_SRC_MASK;
3810                 else if (!usr_ip4_spec->ip4src)
3811                         new_mask &= ~I40E_L3_SRC_MASK;
3812                 else
3813                         return -EOPNOTSUPP;
3814
3815                 /* IPv4 destination address */
3816                 if (usr_ip4_spec->ip4dst == htonl(0xFFFFFFFF))
3817                         new_mask |= I40E_L3_DST_MASK;
3818                 else if (!usr_ip4_spec->ip4dst)
3819                         new_mask &= ~I40E_L3_DST_MASK;
3820                 else
3821                         return -EOPNOTSUPP;
3822
3823                 /* First 4 bytes of L4 header */
3824                 if (usr_ip4_spec->l4_4_bytes == htonl(0xFFFFFFFF))
3825                         new_mask |= I40E_L4_SRC_MASK | I40E_L4_DST_MASK;
3826                 else if (!usr_ip4_spec->l4_4_bytes)
3827                         new_mask &= ~(I40E_L4_SRC_MASK | I40E_L4_DST_MASK);
3828                 else
3829                         return -EOPNOTSUPP;
3830
3831                 /* Filtering on Type of Service is not supported. */
3832                 if (usr_ip4_spec->tos)
3833                         return -EOPNOTSUPP;
3834
3835                 /* Filtering on IP version is not supported */
3836                 if (usr_ip4_spec->ip_ver)
3837                         return -EINVAL;
3838
3839                 /* Filtering on L4 protocol is not supported */
3840                 if (usr_ip4_spec->proto)
3841                         return -EINVAL;
3842
3843                 break;
3844         default:
3845                 return -EOPNOTSUPP;
3846         }
3847
3848         /* First, clear all flexible filter entries */
3849         new_mask &= ~I40E_FLEX_INPUT_MASK;
3850
3851         /* If we have a flexible filter, try to add this offset to the correct
3852          * flexible filter PIT list. Once finished, we can update the mask.
3853          * If the src_offset changed, we will get a new mask value which will
3854          * trigger an input set change.
3855          */
3856         if (userdef->flex_filter) {
3857                 struct i40e_flex_pit *l3_flex_pit = NULL, *flex_pit = NULL;
3858
3859                 /* Flexible offset must be even, since the flexible payload
3860                  * must be aligned on 2-byte boundary.
3861                  */
3862                 if (userdef->flex_offset & 0x1) {
3863                         dev_warn(&pf->pdev->dev,
3864                                  "Flexible data offset must be 2-byte aligned\n");
3865                         return -EINVAL;
3866                 }
3867
3868                 src_offset = userdef->flex_offset >> 1;
3869
3870                 /* FLX_PIT source offset value is only so large */
3871                 if (src_offset > I40E_MAX_FLEX_SRC_OFFSET) {
3872                         dev_warn(&pf->pdev->dev,
3873                                  "Flexible data must reside within first 64 bytes of the packet payload\n");
3874                         return -EINVAL;
3875                 }
3876
3877                 /* See if this offset has already been programmed. If we get
3878                  * an ERR_PTR, then the filter is not safe to add. Otherwise,
3879                  * if we get a NULL pointer, this means we will need to add
3880                  * the offset.
3881                  */
3882                 flex_pit = i40e_find_flex_offset(&pf->l4_flex_pit_list,
3883                                                  src_offset);
3884                 if (IS_ERR(flex_pit))
3885                         return PTR_ERR(flex_pit);
3886
3887                 /* IP_USER_FLOW filters match both L4 (ICMP) and L3 (unknown)
3888                  * packet types, and thus we need to program both L3 and L4
3889                  * flexible values. These must have identical flexible index,
3890                  * as otherwise we can't correctly program the input set. So
3891                  * we'll find both an L3 and L4 index and make sure they are
3892                  * the same.
3893                  */
3894                 if (flex_l3) {
3895                         l3_flex_pit =
3896                                 i40e_find_flex_offset(&pf->l3_flex_pit_list,
3897                                                       src_offset);
3898                         if (IS_ERR(l3_flex_pit))
3899                                 return PTR_ERR(l3_flex_pit);
3900
3901                         if (flex_pit) {
3902                                 /* If we already had a matching L4 entry, we
3903                                  * need to make sure that the L3 entry we
3904                                  * obtained uses the same index.
3905                                  */
3906                                 if (l3_flex_pit) {
3907                                         if (l3_flex_pit->pit_index !=
3908                                             flex_pit->pit_index) {
3909                                                 return -EINVAL;
3910                                         }
3911                                 } else {
3912                                         new_flex_offset = true;
3913                                 }
3914                         } else {
3915                                 flex_pit = l3_flex_pit;
3916                         }
3917                 }
3918
3919                 /* If we didn't find an existing flex offset, we need to
3920                  * program a new one. However, we don't immediately program it
3921                  * here because we will wait to program until after we check
3922                  * that it is safe to change the input set.
3923                  */
3924                 if (!flex_pit) {
3925                         new_flex_offset = true;
3926                         pit_index = i40e_unused_pit_index(pf);
3927                 } else {
3928                         pit_index = flex_pit->pit_index;
3929                 }
3930
3931                 /* Update the mask with the new offset */
3932                 new_mask |= i40e_pit_index_to_mask(pit_index);
3933         }
3934
3935         /* If the mask and flexible filter offsets for this filter match the
3936          * currently programmed values we don't need any input set change, so
3937          * this filter is safe to install.
3938          */
3939         if (new_mask == current_mask && !new_flex_offset)
3940                 return 0;
3941
3942         netif_info(pf, drv, vsi->netdev, "Input set change requested for %s flows:\n",
3943                    i40e_flow_str(fsp));
3944         i40e_print_input_set(vsi, current_mask, new_mask);
3945         if (new_flex_offset) {
3946                 netif_info(pf, drv, vsi->netdev, "FLEX index %d: Offset -> %d",
3947                            pit_index, src_offset);
3948         }
3949
3950         /* Hardware input sets are global across multiple ports, so even the
3951          * main port cannot change them when in MFP mode as this would impact
3952          * any filters on the other ports.
3953          */
3954         if (pf->flags & I40E_FLAG_MFP_ENABLED) {
3955                 netif_err(pf, drv, vsi->netdev, "Cannot change Flow Director input sets while MFP is enabled\n");
3956                 return -EOPNOTSUPP;
3957         }
3958
3959         /* This filter requires us to update the input set. However, hardware
3960          * only supports one input set per flow type, and does not support
3961          * separate masks for each filter. This means that we can only support
3962          * a single mask for all filters of a specific type.
3963          *
3964          * If we have preexisting filters, they obviously depend on the
3965          * current programmed input set. Display a diagnostic message in this
3966          * case explaining why the filter could not be accepted.
3967          */
3968         if (*fdir_filter_count) {
3969                 netif_err(pf, drv, vsi->netdev, "Cannot change input set for %s flows until %d preexisting filters are removed\n",
3970                           i40e_flow_str(fsp),
3971                           *fdir_filter_count);
3972                 return -EOPNOTSUPP;
3973         }
3974
3975         i40e_write_fd_input_set(pf, index, new_mask);
3976
3977         /* IP_USER_FLOW filters match both IPv4/Other and IPv4/Fragmented
3978          * frames. If we're programming the input set for IPv4/Other, we also
3979          * need to program the IPv4/Fragmented input set. Since we don't have
3980          * separate support, we'll always assume and enforce that the two flow
3981          * types must have matching input sets.
3982          */
3983         if (index == I40E_FILTER_PCTYPE_NONF_IPV4_OTHER)
3984                 i40e_write_fd_input_set(pf, I40E_FILTER_PCTYPE_FRAG_IPV4,
3985                                         new_mask);
3986
3987         /* Add the new offset and update table, if necessary */
3988         if (new_flex_offset) {
3989                 err = i40e_add_flex_offset(&pf->l4_flex_pit_list, src_offset,
3990                                            pit_index);
3991                 if (err)
3992                         return err;
3993
3994                 if (flex_l3) {
3995                         err = i40e_add_flex_offset(&pf->l3_flex_pit_list,
3996                                                    src_offset,
3997                                                    pit_index);
3998                         if (err)
3999                                 return err;
4000                 }
4001
4002                 i40e_reprogram_flex_pit(pf);
4003         }
4004
4005         return 0;
4006 }
4007
4008 /**
4009  * i40e_match_fdir_filter - Return true of two filters match
4010  * @a: pointer to filter struct
4011  * @b: pointer to filter struct
4012  *
4013  * Returns true if the two filters match exactly the same criteria. I.e. they
4014  * match the same flow type and have the same parameters. We don't need to
4015  * check any input-set since all filters of the same flow type must use the
4016  * same input set.
4017  **/
4018 static bool i40e_match_fdir_filter(struct i40e_fdir_filter *a,
4019                                    struct i40e_fdir_filter *b)
4020 {
4021         /* The filters do not much if any of these criteria differ. */
4022         if (a->dst_ip != b->dst_ip ||
4023             a->src_ip != b->src_ip ||
4024             a->dst_port != b->dst_port ||
4025             a->src_port != b->src_port ||
4026             a->flow_type != b->flow_type ||
4027             a->ip4_proto != b->ip4_proto)
4028                 return false;
4029
4030         return true;
4031 }
4032
4033 /**
4034  * i40e_disallow_matching_filters - Check that new filters differ
4035  * @vsi: pointer to the targeted VSI
4036  * @input: new filter to check
4037  *
4038  * Due to hardware limitations, it is not possible for two filters that match
4039  * similar criteria to be programmed at the same time. This is true for a few
4040  * reasons:
4041  *
4042  * (a) all filters matching a particular flow type must use the same input
4043  * set, that is they must match the same criteria.
4044  * (b) different flow types will never match the same packet, as the flow type
4045  * is decided by hardware before checking which rules apply.
4046  * (c) hardware has no way to distinguish which order filters apply in.
4047  *
4048  * Due to this, we can't really support using the location data to order
4049  * filters in the hardware parsing. It is technically possible for the user to
4050  * request two filters matching the same criteria but which select different
4051  * queues. In this case, rather than keep both filters in the list, we reject
4052  * the 2nd filter when the user requests adding it.
4053  *
4054  * This avoids needing to track location for programming the filter to
4055  * hardware, and ensures that we avoid some strange scenarios involving
4056  * deleting filters which match the same criteria.
4057  **/
4058 static int i40e_disallow_matching_filters(struct i40e_vsi *vsi,
4059                                           struct i40e_fdir_filter *input)
4060 {
4061         struct i40e_pf *pf = vsi->back;
4062         struct i40e_fdir_filter *rule;
4063         struct hlist_node *node2;
4064
4065         /* Loop through every filter, and check that it doesn't match */
4066         hlist_for_each_entry_safe(rule, node2,
4067                                   &pf->fdir_filter_list, fdir_node) {
4068                 /* Don't check the filters match if they share the same fd_id,
4069                  * since the new filter is actually just updating the target
4070                  * of the old filter.
4071                  */
4072                 if (rule->fd_id == input->fd_id)
4073                         continue;
4074
4075                 /* If any filters match, then print a warning message to the
4076                  * kernel message buffer and bail out.
4077                  */
4078                 if (i40e_match_fdir_filter(rule, input)) {
4079                         dev_warn(&pf->pdev->dev,
4080                                  "Existing user defined filter %d already matches this flow.\n",
4081                                  rule->fd_id);
4082                         return -EINVAL;
4083                 }
4084         }
4085
4086         return 0;
4087 }
4088
4089 /**
4090  * i40e_add_fdir_ethtool - Add/Remove Flow Director filters
4091  * @vsi: pointer to the targeted VSI
4092  * @cmd: command to get or set RX flow classification rules
4093  *
4094  * Add Flow Director filters for a specific flow spec based on their
4095  * protocol.  Returns 0 if the filters were successfully added.
4096  **/
4097 static int i40e_add_fdir_ethtool(struct i40e_vsi *vsi,
4098                                  struct ethtool_rxnfc *cmd)
4099 {
4100         struct i40e_rx_flow_userdef userdef;
4101         struct ethtool_rx_flow_spec *fsp;
4102         struct i40e_fdir_filter *input;
4103         u16 dest_vsi = 0, q_index = 0;
4104         struct i40e_pf *pf;
4105         int ret = -EINVAL;
4106         u8 dest_ctl;
4107
4108         if (!vsi)
4109                 return -EINVAL;
4110         pf = vsi->back;
4111
4112         if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED))
4113                 return -EOPNOTSUPP;
4114
4115         if (test_bit(__I40E_FD_SB_AUTO_DISABLED, pf->state))
4116                 return -ENOSPC;
4117
4118         if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||
4119             test_bit(__I40E_RESET_INTR_RECEIVED, pf->state))
4120                 return -EBUSY;
4121
4122         if (test_bit(__I40E_FD_FLUSH_REQUESTED, pf->state))
4123                 return -EBUSY;
4124
4125         fsp = (struct ethtool_rx_flow_spec *)&cmd->fs;
4126
4127         /* Parse the user-defined field */
4128         if (i40e_parse_rx_flow_user_data(fsp, &userdef))
4129                 return -EINVAL;
4130
4131         /* Extended MAC field is not supported */
4132         if (fsp->flow_type & FLOW_MAC_EXT)
4133                 return -EINVAL;
4134
4135         ret = i40e_check_fdir_input_set(vsi, fsp, &userdef);
4136         if (ret)
4137                 return ret;
4138
4139         if (fsp->location >= (pf->hw.func_caps.fd_filters_best_effort +
4140                               pf->hw.func_caps.fd_filters_guaranteed)) {
4141                 return -EINVAL;
4142         }
4143
4144         /* ring_cookie is either the drop index, or is a mask of the queue
4145          * index and VF id we wish to target.
4146          */
4147         if (fsp->ring_cookie == RX_CLS_FLOW_DISC) {
4148                 dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET;
4149         } else {
4150                 u32 ring = ethtool_get_flow_spec_ring(fsp->ring_cookie);
4151                 u8 vf = ethtool_get_flow_spec_ring_vf(fsp->ring_cookie);
4152
4153                 if (!vf) {
4154                         if (ring >= vsi->num_queue_pairs)
4155                                 return -EINVAL;
4156                         dest_vsi = vsi->id;
4157                 } else {
4158                         /* VFs are zero-indexed, so we subtract one here */
4159                         vf--;
4160
4161                         if (vf >= pf->num_alloc_vfs)
4162                                 return -EINVAL;
4163                         if (ring >= pf->vf[vf].num_queue_pairs)
4164                                 return -EINVAL;
4165                         dest_vsi = pf->vf[vf].lan_vsi_id;
4166                 }
4167                 dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DIRECT_PACKET_QINDEX;
4168                 q_index = ring;
4169         }
4170
4171         input = kzalloc(sizeof(*input), GFP_KERNEL);
4172
4173         if (!input)
4174                 return -ENOMEM;
4175
4176         input->fd_id = fsp->location;
4177         input->q_index = q_index;
4178         input->dest_vsi = dest_vsi;
4179         input->dest_ctl = dest_ctl;
4180         input->fd_status = I40E_FILTER_PROGRAM_DESC_FD_STATUS_FD_ID;
4181         input->cnt_index  = I40E_FD_SB_STAT_IDX(pf->hw.pf_id);
4182         input->dst_ip = fsp->h_u.tcp_ip4_spec.ip4src;
4183         input->src_ip = fsp->h_u.tcp_ip4_spec.ip4dst;
4184         input->flow_type = fsp->flow_type & ~FLOW_EXT;
4185         input->ip4_proto = fsp->h_u.usr_ip4_spec.proto;
4186
4187         /* Reverse the src and dest notion, since the HW expects them to be from
4188          * Tx perspective where as the input from user is from Rx filter view.
4189          */
4190         input->dst_port = fsp->h_u.tcp_ip4_spec.psrc;
4191         input->src_port = fsp->h_u.tcp_ip4_spec.pdst;
4192         input->dst_ip = fsp->h_u.tcp_ip4_spec.ip4src;
4193         input->src_ip = fsp->h_u.tcp_ip4_spec.ip4dst;
4194
4195         if (userdef.flex_filter) {
4196                 input->flex_filter = true;
4197                 input->flex_word = cpu_to_be16(userdef.flex_word);
4198                 input->flex_offset = userdef.flex_offset;
4199         }
4200
4201         /* Avoid programming two filters with identical match criteria. */
4202         ret = i40e_disallow_matching_filters(vsi, input);
4203         if (ret)
4204                 goto free_filter_memory;
4205
4206         /* Add the input filter to the fdir_input_list, possibly replacing
4207          * a previous filter. Do not free the input structure after adding it
4208          * to the list as this would cause a use-after-free bug.
4209          */
4210         i40e_update_ethtool_fdir_entry(vsi, input, fsp->location, NULL);
4211         ret = i40e_add_del_fdir(vsi, input, true);
4212         if (ret)
4213                 goto remove_sw_rule;
4214         return 0;
4215
4216 remove_sw_rule:
4217         hlist_del(&input->fdir_node);
4218         pf->fdir_pf_active_filters--;
4219 free_filter_memory:
4220         kfree(input);
4221         return ret;
4222 }
4223
4224 /**
4225  * i40e_set_rxnfc - command to set RX flow classification rules
4226  * @netdev: network interface device structure
4227  * @cmd: ethtool rxnfc command
4228  *
4229  * Returns Success if the command is supported.
4230  **/
4231 static int i40e_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd)
4232 {
4233         struct i40e_netdev_priv *np = netdev_priv(netdev);
4234         struct i40e_vsi *vsi = np->vsi;
4235         struct i40e_pf *pf = vsi->back;
4236         int ret = -EOPNOTSUPP;
4237
4238         switch (cmd->cmd) {
4239         case ETHTOOL_SRXFH:
4240                 ret = i40e_set_rss_hash_opt(pf, cmd);
4241                 break;
4242         case ETHTOOL_SRXCLSRLINS:
4243                 ret = i40e_add_fdir_ethtool(vsi, cmd);
4244                 break;
4245         case ETHTOOL_SRXCLSRLDEL:
4246                 ret = i40e_del_fdir_entry(vsi, cmd);
4247                 break;
4248         default:
4249                 break;
4250         }
4251
4252         return ret;
4253 }
4254
4255 /**
4256  * i40e_max_channels - get Max number of combined channels supported
4257  * @vsi: vsi pointer
4258  **/
4259 static unsigned int i40e_max_channels(struct i40e_vsi *vsi)
4260 {
4261         /* TODO: This code assumes DCB and FD is disabled for now. */
4262         return vsi->alloc_queue_pairs;
4263 }
4264
4265 /**
4266  * i40e_get_channels - Get the current channels enabled and max supported etc.
4267  * @dev: network interface device structure
4268  * @ch: ethtool channels structure
4269  *
4270  * We don't support separate tx and rx queues as channels. The other count
4271  * represents how many queues are being used for control. max_combined counts
4272  * how many queue pairs we can support. They may not be mapped 1 to 1 with
4273  * q_vectors since we support a lot more queue pairs than q_vectors.
4274  **/
4275 static void i40e_get_channels(struct net_device *dev,
4276                               struct ethtool_channels *ch)
4277 {
4278         struct i40e_netdev_priv *np = netdev_priv(dev);
4279         struct i40e_vsi *vsi = np->vsi;
4280         struct i40e_pf *pf = vsi->back;
4281
4282         /* report maximum channels */
4283         ch->max_combined = i40e_max_channels(vsi);
4284
4285         /* report info for other vector */
4286         ch->other_count = (pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0;
4287         ch->max_other = ch->other_count;
4288
4289         /* Note: This code assumes DCB is disabled for now. */
4290         ch->combined_count = vsi->num_queue_pairs;
4291 }
4292
4293 /**
4294  * i40e_set_channels - Set the new channels count.
4295  * @dev: network interface device structure
4296  * @ch: ethtool channels structure
4297  *
4298  * The new channels count may not be the same as requested by the user
4299  * since it gets rounded down to a power of 2 value.
4300  **/
4301 static int i40e_set_channels(struct net_device *dev,
4302                              struct ethtool_channels *ch)
4303 {
4304         const u8 drop = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET;
4305         struct i40e_netdev_priv *np = netdev_priv(dev);
4306         unsigned int count = ch->combined_count;
4307         struct i40e_vsi *vsi = np->vsi;
4308         struct i40e_pf *pf = vsi->back;
4309         struct i40e_fdir_filter *rule;
4310         struct hlist_node *node2;
4311         int new_count;
4312         int err = 0;
4313
4314         /* We do not support setting channels for any other VSI at present */
4315         if (vsi->type != I40E_VSI_MAIN)
4316                 return -EINVAL;
4317
4318         /* We do not support setting channels via ethtool when TCs are
4319          * configured through mqprio
4320          */
4321         if (pf->flags & I40E_FLAG_TC_MQPRIO)
4322                 return -EINVAL;
4323
4324         /* verify they are not requesting separate vectors */
4325         if (!count || ch->rx_count || ch->tx_count)
4326                 return -EINVAL;
4327
4328         /* verify other_count has not changed */
4329         if (ch->other_count != ((pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0))
4330                 return -EINVAL;
4331
4332         /* verify the number of channels does not exceed hardware limits */
4333         if (count > i40e_max_channels(vsi))
4334                 return -EINVAL;
4335
4336         /* verify that the number of channels does not invalidate any current
4337          * flow director rules
4338          */
4339         hlist_for_each_entry_safe(rule, node2,
4340                                   &pf->fdir_filter_list, fdir_node) {
4341                 if (rule->dest_ctl != drop && count <= rule->q_index) {
4342                         dev_warn(&pf->pdev->dev,
4343                                  "Existing user defined filter %d assigns flow to queue %d\n",
4344                                  rule->fd_id, rule->q_index);
4345                         err = -EINVAL;
4346                 }
4347         }
4348
4349         if (err) {
4350                 dev_err(&pf->pdev->dev,
4351                         "Existing filter rules must be deleted to reduce combined channel count to %d\n",
4352                         count);
4353                 return err;
4354         }
4355
4356         /* update feature limits from largest to smallest supported values */
4357         /* TODO: Flow director limit, DCB etc */
4358
4359         /* use rss_reconfig to rebuild with new queue count and update traffic
4360          * class queue mapping
4361          */
4362         new_count = i40e_reconfig_rss_queues(pf, count);
4363         if (new_count > 0)
4364                 return 0;
4365         else
4366                 return -EINVAL;
4367 }
4368
4369 /**
4370  * i40e_get_rxfh_key_size - get the RSS hash key size
4371  * @netdev: network interface device structure
4372  *
4373  * Returns the table size.
4374  **/
4375 static u32 i40e_get_rxfh_key_size(struct net_device *netdev)
4376 {
4377         return I40E_HKEY_ARRAY_SIZE;
4378 }
4379
4380 /**
4381  * i40e_get_rxfh_indir_size - get the rx flow hash indirection table size
4382  * @netdev: network interface device structure
4383  *
4384  * Returns the table size.
4385  **/
4386 static u32 i40e_get_rxfh_indir_size(struct net_device *netdev)
4387 {
4388         return I40E_HLUT_ARRAY_SIZE;
4389 }
4390
4391 /**
4392  * i40e_get_rxfh - get the rx flow hash indirection table
4393  * @netdev: network interface device structure
4394  * @indir: indirection table
4395  * @key: hash key
4396  * @hfunc: hash function
4397  *
4398  * Reads the indirection table directly from the hardware. Returns 0 on
4399  * success.
4400  **/
4401 static int i40e_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key,
4402                          u8 *hfunc)
4403 {
4404         struct i40e_netdev_priv *np = netdev_priv(netdev);
4405         struct i40e_vsi *vsi = np->vsi;
4406         u8 *lut, *seed = NULL;
4407         int ret;
4408         u16 i;
4409
4410         if (hfunc)
4411                 *hfunc = ETH_RSS_HASH_TOP;
4412
4413         if (!indir)
4414                 return 0;
4415
4416         seed = key;
4417         lut = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL);
4418         if (!lut)
4419                 return -ENOMEM;
4420         ret = i40e_get_rss(vsi, seed, lut, I40E_HLUT_ARRAY_SIZE);
4421         if (ret)
4422                 goto out;
4423         for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++)
4424                 indir[i] = (u32)(lut[i]);
4425
4426 out:
4427         kfree(lut);
4428
4429         return ret;
4430 }
4431
4432 /**
4433  * i40e_set_rxfh - set the rx flow hash indirection table
4434  * @netdev: network interface device structure
4435  * @indir: indirection table
4436  * @key: hash key
4437  * @hfunc: hash function to use
4438  *
4439  * Returns -EINVAL if the table specifies an invalid queue id, otherwise
4440  * returns 0 after programming the table.
4441  **/
4442 static int i40e_set_rxfh(struct net_device *netdev, const u32 *indir,
4443                          const u8 *key, const u8 hfunc)
4444 {
4445         struct i40e_netdev_priv *np = netdev_priv(netdev);
4446         struct i40e_vsi *vsi = np->vsi;
4447         struct i40e_pf *pf = vsi->back;
4448         u8 *seed = NULL;
4449         u16 i;
4450
4451         if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)
4452                 return -EOPNOTSUPP;
4453
4454         if (key) {
4455                 if (!vsi->rss_hkey_user) {
4456                         vsi->rss_hkey_user = kzalloc(I40E_HKEY_ARRAY_SIZE,
4457                                                      GFP_KERNEL);
4458                         if (!vsi->rss_hkey_user)
4459                                 return -ENOMEM;
4460                 }
4461                 memcpy(vsi->rss_hkey_user, key, I40E_HKEY_ARRAY_SIZE);
4462                 seed = vsi->rss_hkey_user;
4463         }
4464         if (!vsi->rss_lut_user) {
4465                 vsi->rss_lut_user = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL);
4466                 if (!vsi->rss_lut_user)
4467                         return -ENOMEM;
4468         }
4469
4470         /* Each 32 bits pointed by 'indir' is stored with a lut entry */
4471         if (indir)
4472                 for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++)
4473                         vsi->rss_lut_user[i] = (u8)(indir[i]);
4474         else
4475                 i40e_fill_rss_lut(pf, vsi->rss_lut_user, I40E_HLUT_ARRAY_SIZE,
4476                                   vsi->rss_size);
4477
4478         return i40e_config_rss(vsi, seed, vsi->rss_lut_user,
4479                                I40E_HLUT_ARRAY_SIZE);
4480 }
4481
4482 /**
4483  * i40e_get_priv_flags - report device private flags
4484  * @dev: network interface device structure
4485  *
4486  * The get string set count and the string set should be matched for each
4487  * flag returned.  Add new strings for each flag to the i40e_gstrings_priv_flags
4488  * array.
4489  *
4490  * Returns a u32 bitmap of flags.
4491  **/
4492 static u32 i40e_get_priv_flags(struct net_device *dev)
4493 {
4494         struct i40e_netdev_priv *np = netdev_priv(dev);
4495         struct i40e_vsi *vsi = np->vsi;
4496         struct i40e_pf *pf = vsi->back;
4497         u32 i, j, ret_flags = 0;
4498
4499         for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) {
4500                 const struct i40e_priv_flags *priv_flags;
4501
4502                 priv_flags = &i40e_gstrings_priv_flags[i];
4503
4504                 if (priv_flags->flag & pf->flags)
4505                         ret_flags |= BIT(i);
4506         }
4507
4508         if (pf->hw.pf_id != 0)
4509                 return ret_flags;
4510
4511         for (j = 0; j < I40E_GL_PRIV_FLAGS_STR_LEN; j++) {
4512                 const struct i40e_priv_flags *priv_flags;
4513
4514                 priv_flags = &i40e_gl_gstrings_priv_flags[j];
4515
4516                 if (priv_flags->flag & pf->flags)
4517                         ret_flags |= BIT(i + j);
4518         }
4519
4520         return ret_flags;
4521 }
4522
4523 /**
4524  * i40e_set_priv_flags - set private flags
4525  * @dev: network interface device structure
4526  * @flags: bit flags to be set
4527  **/
4528 static int i40e_set_priv_flags(struct net_device *dev, u32 flags)
4529 {
4530         struct i40e_netdev_priv *np = netdev_priv(dev);
4531         struct i40e_vsi *vsi = np->vsi;
4532         struct i40e_pf *pf = vsi->back;
4533         u64 orig_flags, new_flags, changed_flags;
4534         u32 i, j;
4535
4536         orig_flags = READ_ONCE(pf->flags);
4537         new_flags = orig_flags;
4538
4539         for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) {
4540                 const struct i40e_priv_flags *priv_flags;
4541
4542                 priv_flags = &i40e_gstrings_priv_flags[i];
4543
4544                 if (flags & BIT(i))
4545                         new_flags |= priv_flags->flag;
4546                 else
4547                         new_flags &= ~(priv_flags->flag);
4548
4549                 /* If this is a read-only flag, it can't be changed */
4550                 if (priv_flags->read_only &&
4551                     ((orig_flags ^ new_flags) & ~BIT(i)))
4552                         return -EOPNOTSUPP;
4553         }
4554
4555         if (pf->hw.pf_id != 0)
4556                 goto flags_complete;
4557
4558         for (j = 0; j < I40E_GL_PRIV_FLAGS_STR_LEN; j++) {
4559                 const struct i40e_priv_flags *priv_flags;
4560
4561                 priv_flags = &i40e_gl_gstrings_priv_flags[j];
4562
4563                 if (flags & BIT(i + j))
4564                         new_flags |= priv_flags->flag;
4565                 else
4566                         new_flags &= ~(priv_flags->flag);
4567
4568                 /* If this is a read-only flag, it can't be changed */
4569                 if (priv_flags->read_only &&
4570                     ((orig_flags ^ new_flags) & ~BIT(i)))
4571                         return -EOPNOTSUPP;
4572         }
4573
4574 flags_complete:
4575         changed_flags = orig_flags ^ new_flags;
4576
4577         /* Before we finalize any flag changes, we need to perform some
4578          * checks to ensure that the changes are supported and safe.
4579          */
4580
4581         /* ATR eviction is not supported on all devices */
4582         if ((new_flags & I40E_FLAG_HW_ATR_EVICT_ENABLED) &&
4583             !(pf->hw_features & I40E_HW_ATR_EVICT_CAPABLE))
4584                 return -EOPNOTSUPP;
4585
4586         /* If the driver detected FW LLDP was disabled on init, this flag could
4587          * be set, however we do not support _changing_ the flag if NPAR is
4588          * enabled or FW API version < 1.7.  There are situations where older
4589          * FW versions/NPAR enabled PFs could disable LLDP, however we _must_
4590          * not allow the user to enable/disable LLDP with this flag on
4591          * unsupported FW versions.
4592          */
4593         if (changed_flags & I40E_FLAG_DISABLE_FW_LLDP) {
4594                 if (!(pf->hw_features & I40E_HW_STOPPABLE_FW_LLDP)) {
4595                         dev_warn(&pf->pdev->dev,
4596                                  "Device does not support changing FW LLDP\n");
4597                         return -EOPNOTSUPP;
4598                 }
4599         }
4600
4601         /* Now that we've checked to ensure that the new flags are valid, load
4602          * them into place. Since we only modify flags either (a) during
4603          * initialization or (b) while holding the RTNL lock, we don't need
4604          * anything fancy here.
4605          */
4606         pf->flags = new_flags;
4607
4608         /* Process any additional changes needed as a result of flag changes.
4609          * The changed_flags value reflects the list of bits that were
4610          * changed in the code above.
4611          */
4612
4613         /* Flush current ATR settings if ATR was disabled */
4614         if ((changed_flags & I40E_FLAG_FD_ATR_ENABLED) &&
4615             !(pf->flags & I40E_FLAG_FD_ATR_ENABLED)) {
4616                 set_bit(__I40E_FD_ATR_AUTO_DISABLED, pf->state);
4617                 set_bit(__I40E_FD_FLUSH_REQUESTED, pf->state);
4618         }
4619
4620         if (changed_flags & I40E_FLAG_TRUE_PROMISC_SUPPORT) {
4621                 u16 sw_flags = 0, valid_flags = 0;
4622                 int ret;
4623
4624                 if (!(pf->flags & I40E_FLAG_TRUE_PROMISC_SUPPORT))
4625                         sw_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC;
4626                 valid_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC;
4627                 ret = i40e_aq_set_switch_config(&pf->hw, sw_flags, valid_flags,
4628                                                 0, NULL);
4629                 if (ret && pf->hw.aq.asq_last_status != I40E_AQ_RC_ESRCH) {
4630                         dev_info(&pf->pdev->dev,
4631                                  "couldn't set switch config bits, err %s aq_err %s\n",
4632                                  i40e_stat_str(&pf->hw, ret),
4633                                  i40e_aq_str(&pf->hw,
4634                                              pf->hw.aq.asq_last_status));
4635                         /* not a fatal problem, just keep going */
4636                 }
4637         }
4638
4639         if ((changed_flags & pf->flags &
4640              I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED) &&
4641             (pf->flags & I40E_FLAG_MFP_ENABLED))
4642                 dev_warn(&pf->pdev->dev,
4643                          "Turning on link-down-on-close flag may affect other partitions\n");
4644
4645         if (changed_flags & I40E_FLAG_DISABLE_FW_LLDP) {
4646                 if (pf->flags & I40E_FLAG_DISABLE_FW_LLDP) {
4647                         struct i40e_dcbx_config *dcbcfg;
4648
4649                         i40e_aq_stop_lldp(&pf->hw, true, NULL);
4650                         i40e_aq_set_dcb_parameters(&pf->hw, true, NULL);
4651                         /* reset local_dcbx_config to default */
4652                         dcbcfg = &pf->hw.local_dcbx_config;
4653                         dcbcfg->etscfg.willing = 1;
4654                         dcbcfg->etscfg.maxtcs = 0;
4655                         dcbcfg->etscfg.tcbwtable[0] = 100;
4656                         for (i = 1; i < I40E_MAX_TRAFFIC_CLASS; i++)
4657                                 dcbcfg->etscfg.tcbwtable[i] = 0;
4658                         for (i = 0; i < I40E_MAX_USER_PRIORITY; i++)
4659                                 dcbcfg->etscfg.prioritytable[i] = 0;
4660                         dcbcfg->etscfg.tsatable[0] = I40E_IEEE_TSA_ETS;
4661                         dcbcfg->pfc.willing = 1;
4662                         dcbcfg->pfc.pfccap = I40E_MAX_TRAFFIC_CLASS;
4663                 } else {
4664                         i40e_aq_start_lldp(&pf->hw, NULL);
4665                 }
4666         }
4667
4668         /* Issue reset to cause things to take effect, as additional bits
4669          * are added we will need to create a mask of bits requiring reset
4670          */
4671         if (changed_flags & (I40E_FLAG_VEB_STATS_ENABLED |
4672                              I40E_FLAG_LEGACY_RX |
4673                              I40E_FLAG_SOURCE_PRUNING_DISABLED |
4674                              I40E_FLAG_DISABLE_FW_LLDP))
4675                 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true);
4676
4677         return 0;
4678 }
4679
4680 /**
4681  * i40e_get_module_info - get (Q)SFP+ module type info
4682  * @netdev: network interface device structure
4683  * @modinfo: module EEPROM size and layout information structure
4684  **/
4685 static int i40e_get_module_info(struct net_device *netdev,
4686                                 struct ethtool_modinfo *modinfo)
4687 {
4688         struct i40e_netdev_priv *np = netdev_priv(netdev);
4689         struct i40e_vsi *vsi = np->vsi;
4690         struct i40e_pf *pf = vsi->back;
4691         struct i40e_hw *hw = &pf->hw;
4692         u32 sff8472_comp = 0;
4693         u32 sff8472_swap = 0;
4694         u32 sff8636_rev = 0;
4695         i40e_status status;
4696         u32 type = 0;
4697
4698         /* Check if firmware supports reading module EEPROM. */
4699         if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE)) {
4700                 netdev_err(vsi->netdev, "Module EEPROM memory read not supported. Please update the NVM image.\n");
4701                 return -EINVAL;
4702         }
4703
4704         status = i40e_update_link_info(hw);
4705         if (status)
4706                 return -EIO;
4707
4708         if (hw->phy.link_info.phy_type == I40E_PHY_TYPE_EMPTY) {
4709                 netdev_err(vsi->netdev, "Cannot read module EEPROM memory. No module connected.\n");
4710                 return -EINVAL;
4711         }
4712
4713         type = hw->phy.link_info.module_type[0];
4714
4715         switch (type) {
4716         case I40E_MODULE_TYPE_SFP:
4717                 status = i40e_aq_get_phy_register(hw,
4718                                 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE,
4719                                 I40E_I2C_EEPROM_DEV_ADDR,
4720                                 I40E_MODULE_SFF_8472_COMP,
4721                                 &sff8472_comp, NULL);
4722                 if (status)
4723                         return -EIO;
4724
4725                 status = i40e_aq_get_phy_register(hw,
4726                                 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE,
4727                                 I40E_I2C_EEPROM_DEV_ADDR,
4728                                 I40E_MODULE_SFF_8472_SWAP,
4729                                 &sff8472_swap, NULL);
4730                 if (status)
4731                         return -EIO;
4732
4733                 /* Check if the module requires address swap to access
4734                  * the other EEPROM memory page.
4735                  */
4736                 if (sff8472_swap & I40E_MODULE_SFF_ADDR_MODE) {
4737                         netdev_warn(vsi->netdev, "Module address swap to access page 0xA2 is not supported.\n");
4738                         modinfo->type = ETH_MODULE_SFF_8079;
4739                         modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
4740                 } else if (sff8472_comp == 0x00) {
4741                         /* Module is not SFF-8472 compliant */
4742                         modinfo->type = ETH_MODULE_SFF_8079;
4743                         modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
4744                 } else {
4745                         modinfo->type = ETH_MODULE_SFF_8472;
4746                         modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN;
4747                 }
4748                 break;
4749         case I40E_MODULE_TYPE_QSFP_PLUS:
4750                 /* Read from memory page 0. */
4751                 status = i40e_aq_get_phy_register(hw,
4752                                 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE,
4753                                 0,
4754                                 I40E_MODULE_REVISION_ADDR,
4755                                 &sff8636_rev, NULL);
4756                 if (status)
4757                         return -EIO;
4758                 /* Determine revision compliance byte */
4759                 if (sff8636_rev > 0x02) {
4760                         /* Module is SFF-8636 compliant */
4761                         modinfo->type = ETH_MODULE_SFF_8636;
4762                         modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN;
4763                 } else {
4764                         modinfo->type = ETH_MODULE_SFF_8436;
4765                         modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN;
4766                 }
4767                 break;
4768         case I40E_MODULE_TYPE_QSFP28:
4769                 modinfo->type = ETH_MODULE_SFF_8636;
4770                 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN;
4771                 break;
4772         default:
4773                 netdev_err(vsi->netdev, "Module type unrecognized\n");
4774                 return -EINVAL;
4775         }
4776         return 0;
4777 }
4778
4779 /**
4780  * i40e_get_module_eeprom - fills buffer with (Q)SFP+ module memory contents
4781  * @netdev: network interface device structure
4782  * @ee: EEPROM dump request structure
4783  * @data: buffer to be filled with EEPROM contents
4784  **/
4785 static int i40e_get_module_eeprom(struct net_device *netdev,
4786                                   struct ethtool_eeprom *ee,
4787                                   u8 *data)
4788 {
4789         struct i40e_netdev_priv *np = netdev_priv(netdev);
4790         struct i40e_vsi *vsi = np->vsi;
4791         struct i40e_pf *pf = vsi->back;
4792         struct i40e_hw *hw = &pf->hw;
4793         bool is_sfp = false;
4794         i40e_status status;
4795         u32 value = 0;
4796         int i;
4797
4798         if (!ee || !ee->len || !data)
4799                 return -EINVAL;
4800
4801         if (hw->phy.link_info.module_type[0] == I40E_MODULE_TYPE_SFP)
4802                 is_sfp = true;
4803
4804         for (i = 0; i < ee->len; i++) {
4805                 u32 offset = i + ee->offset;
4806                 u32 addr = is_sfp ? I40E_I2C_EEPROM_DEV_ADDR : 0;
4807
4808                 /* Check if we need to access the other memory page */
4809                 if (is_sfp) {
4810                         if (offset >= ETH_MODULE_SFF_8079_LEN) {
4811                                 offset -= ETH_MODULE_SFF_8079_LEN;
4812                                 addr = I40E_I2C_EEPROM_DEV_ADDR2;
4813                         }
4814                 } else {
4815                         while (offset >= ETH_MODULE_SFF_8436_LEN) {
4816                                 /* Compute memory page number and offset. */
4817                                 offset -= ETH_MODULE_SFF_8436_LEN / 2;
4818                                 addr++;
4819                         }
4820                 }
4821
4822                 status = i40e_aq_get_phy_register(hw,
4823                                 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE,
4824                                 addr, offset, &value, NULL);
4825                 if (status)
4826                         return -EIO;
4827                 data[i] = value;
4828         }
4829         return 0;
4830 }
4831
4832 static const struct ethtool_ops i40e_ethtool_ops = {
4833         .get_drvinfo            = i40e_get_drvinfo,
4834         .get_regs_len           = i40e_get_regs_len,
4835         .get_regs               = i40e_get_regs,
4836         .nway_reset             = i40e_nway_reset,
4837         .get_link               = ethtool_op_get_link,
4838         .get_wol                = i40e_get_wol,
4839         .set_wol                = i40e_set_wol,
4840         .set_eeprom             = i40e_set_eeprom,
4841         .get_eeprom_len         = i40e_get_eeprom_len,
4842         .get_eeprom             = i40e_get_eeprom,
4843         .get_ringparam          = i40e_get_ringparam,
4844         .set_ringparam          = i40e_set_ringparam,
4845         .get_pauseparam         = i40e_get_pauseparam,
4846         .set_pauseparam         = i40e_set_pauseparam,
4847         .get_msglevel           = i40e_get_msglevel,
4848         .set_msglevel           = i40e_set_msglevel,
4849         .get_rxnfc              = i40e_get_rxnfc,
4850         .set_rxnfc              = i40e_set_rxnfc,
4851         .self_test              = i40e_diag_test,
4852         .get_strings            = i40e_get_strings,
4853         .set_phys_id            = i40e_set_phys_id,
4854         .get_sset_count         = i40e_get_sset_count,
4855         .get_ethtool_stats      = i40e_get_ethtool_stats,
4856         .get_coalesce           = i40e_get_coalesce,
4857         .set_coalesce           = i40e_set_coalesce,
4858         .get_rxfh_key_size      = i40e_get_rxfh_key_size,
4859         .get_rxfh_indir_size    = i40e_get_rxfh_indir_size,
4860         .get_rxfh               = i40e_get_rxfh,
4861         .set_rxfh               = i40e_set_rxfh,
4862         .get_channels           = i40e_get_channels,
4863         .set_channels           = i40e_set_channels,
4864         .get_module_info        = i40e_get_module_info,
4865         .get_module_eeprom      = i40e_get_module_eeprom,
4866         .get_ts_info            = i40e_get_ts_info,
4867         .get_priv_flags         = i40e_get_priv_flags,
4868         .set_priv_flags         = i40e_set_priv_flags,
4869         .get_per_queue_coalesce = i40e_get_per_queue_coalesce,
4870         .set_per_queue_coalesce = i40e_set_per_queue_coalesce,
4871         .get_link_ksettings     = i40e_get_link_ksettings,
4872         .set_link_ksettings     = i40e_set_link_ksettings,
4873 };
4874
4875 void i40e_set_ethtool_ops(struct net_device *netdev)
4876 {
4877         netdev->ethtool_ops = &i40e_ethtool_ops;
4878 }